2977 files changed, 188390 insertions, 73852 deletions

diff --git a/drivers/Kconfig b/drivers/Kconfig
index ece958d3762..dbdefa3fe77 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
 
 source "drivers/base/Kconfig"
 
+source "drivers/bus/Kconfig"
+
 source "drivers/connector/Kconfig"
 
 source "drivers/mtd/Kconfig"
@@ -152,4 +154,6 @@ source "drivers/vme/Kconfig"
 
 source "drivers/pwm/Kconfig"
 
+source "drivers/irqchip/Kconfig"
+
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 5b421840c48..03da5b663ae 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,9 @@
 # Rewritten to use lists instead of if-statements.
 #
 
+obj-y				+= irqchip/
+obj-y				+= bus/
+
 # GPIO must come after pinctrl as gpios may need to mux pins etc
 obj-y				+= pinctrl/
 obj-y				+= gpio/
@@ -120,7 +123,6 @@ obj-$(CONFIG_VHOST_NET)		+= vhost/
 obj-$(CONFIG_VLYNQ)		+= vlynq/
 obj-$(CONFIG_STAGING)		+= staging/
 obj-y				+= platform/
-obj-y				+= ieee802154/
 #common clk code
 obj-y				+= clk/
 
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 80998958cf4..119d58db834 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -385,8 +385,8 @@ config ACPI_CUSTOM_METHOD
 	  to override that restriction).
 
 config ACPI_BGRT
-        tristate "Boottime Graphics Resource Table support"
-        default n
+	bool "Boottime Graphics Resource Table support"
+	depends on EFI
         help
 	  This driver adds support for exposing the ACPI Boottime Graphics
 	  Resource Table, which allows the operating system to obtain
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index ac7034129f3..d5fdd36190c 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -69,7 +69,9 @@ static const struct acpi_device_id ac_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ac_device_ids);
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_ac_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
 
 static struct acpi_driver acpi_ac_driver = {
@@ -313,6 +315,7 @@ static int acpi_ac_add(struct acpi_device *device)
 	return result;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_ac_resume(struct device *dev)
 {
 	struct acpi_ac *ac;
@@ -332,6 +335,7 @@ static int acpi_ac_resume(struct device *dev)
 		kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
 	return 0;
 }
+#endif
 
 static int acpi_ac_remove(struct acpi_device *device, int type)
 {
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 5ccb99ae3a6..5de4ec72766 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -83,22 +83,22 @@ acpi_status acpi_hw_clear_acpi_status(void);
 /*
  * hwsleep - sleep/wake support (Legacy sleep registers)
  */
-acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_legacy_sleep(u8 sleep_state);
 
-acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state);
 
-acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_legacy_wake(u8 sleep_state);
 
 /*
  * hwesleep - sleep/wake support (Extended FADT-V5 sleep registers)
  */
 void acpi_hw_execute_sleep_method(char *method_name, u32 integer_argument);
 
-acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_extended_sleep(u8 sleep_state);
 
-acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_extended_wake_prep(u8 sleep_state);
 
-acpi_status acpi_hw_extended_wake(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_extended_wake(u8 sleep_state);
 
 /*
  * hwvalid - Port I/O with validation
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 48518dac534..94996f9ae3a 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -90,7 +90,6 @@ void acpi_hw_execute_sleep_method(char *method_pathname, u32 integer_argument)
  * FUNCTION:    acpi_hw_extended_sleep
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
- *              flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
@@ -100,7 +99,7 @@ void acpi_hw_execute_sleep_method(char *method_pathname, u32 integer_argument)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 {
 	acpi_status status;
 	u8 sleep_type_value;
@@ -125,12 +124,6 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
 
 	acpi_gbl_system_awake_and_running = FALSE;
 
-	/* Optionally execute _GTS (Going To Sleep) */
-
-	if (flags & ACPI_EXECUTE_GTS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__GTS, sleep_state);
-	}
-
 	/* Flush caches, as per ACPI specification */
 
 	ACPI_FLUSH_CPU_CACHE();
@@ -172,7 +165,6 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
  * FUNCTION:    acpi_hw_extended_wake_prep
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - ACPI_EXECUTE_BFS to run optional method
  *
  * RETURN:      Status
  *
@@ -181,7 +173,7 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_extended_wake_prep(u8 sleep_state)
 {
 	acpi_status status;
 	u8 sleep_type_value;
@@ -200,11 +192,6 @@ acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
 				 &acpi_gbl_FADT.sleep_control);
 	}
 
-	/* Optionally execute _BFS (Back From Sleep) */
-
-	if (flags & ACPI_EXECUTE_BFS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__BFS, sleep_state);
-	}
 	return_ACPI_STATUS(AE_OK);
 }
 
@@ -222,7 +209,7 @@ acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_extended_wake(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_extended_wake(u8 sleep_state)
 {
 	ACPI_FUNCTION_TRACE(hw_extended_wake);
 
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 9960fe9ef53..3fddde056a5 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -56,7 +56,6 @@ ACPI_MODULE_NAME("hwsleep")
  * FUNCTION:    acpi_hw_legacy_sleep
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
- *              flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
@@ -64,7 +63,7 @@ ACPI_MODULE_NAME("hwsleep")
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 {
 	struct acpi_bit_register_info *sleep_type_reg_info;
 	struct acpi_bit_register_info *sleep_enable_reg_info;
@@ -110,12 +109,6 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
 		return_ACPI_STATUS(status);
 	}
 
-	/* Optionally execute _GTS (Going To Sleep) */
-
-	if (flags & ACPI_EXECUTE_GTS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__GTS, sleep_state);
-	}
-
 	/* Get current value of PM1A control */
 
 	status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
@@ -214,7 +207,6 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
  * FUNCTION:    acpi_hw_legacy_wake_prep
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - ACPI_EXECUTE_BFS to run optional method
  *
  * RETURN:      Status
  *
@@ -224,7 +216,7 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
 {
 	acpi_status status;
 	struct acpi_bit_register_info *sleep_type_reg_info;
@@ -275,11 +267,6 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
 		}
 	}
 
-	/* Optionally execute _BFS (Back From Sleep) */
-
-	if (flags & ACPI_EXECUTE_BFS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__BFS, sleep_state);
-	}
 	return_ACPI_STATUS(status);
 }
 
@@ -288,7 +275,6 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
  * FUNCTION:    acpi_hw_legacy_wake
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - Reserved, set to zero
  *
  * RETURN:      Status
  *
@@ -297,7 +283,7 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_legacy_wake(u8 sleep_state)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index f8684bfe790..1f165a750ae 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -50,7 +50,7 @@ ACPI_MODULE_NAME("hwxfsleep")
 
 /* Local prototypes */
 static acpi_status
-acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id);
+acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
 
 /*
  * Dispatch table used to efficiently branch to the various sleep
@@ -235,7 +235,7 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
  *
  ******************************************************************************/
 static acpi_status
-acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
+acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id)
 {
 	acpi_status status;
 	struct acpi_sleep_functions *sleep_functions =
@@ -248,11 +248,11 @@ acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
 	 * use the extended sleep registers
 	 */
 	if (acpi_gbl_reduced_hardware || acpi_gbl_FADT.sleep_control.address) {
-		status = sleep_functions->extended_function(sleep_state, flags);
+		status = sleep_functions->extended_function(sleep_state);
 	} else {
 		/* Legacy sleep */
 
-		status = sleep_functions->legacy_function(sleep_state, flags);
+		status = sleep_functions->legacy_function(sleep_state);
 	}
 
 	return (status);
@@ -262,7 +262,7 @@ acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
 	 * For the case where reduced-hardware-only code is being generated,
 	 * we know that only the extended sleep registers are available
 	 */
-	status = sleep_functions->extended_function(sleep_state, flags);
+	status = sleep_functions->extended_function(sleep_state);
 	return (status);
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
@@ -349,7 +349,6 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
  * FUNCTION:    acpi_enter_sleep_state
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
- *              flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
@@ -357,7 +356,7 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state, u8 flags)
+acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 {
 	acpi_status status;
 
@@ -371,7 +370,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state, u8 flags)
 	}
 
 	status =
-	    acpi_hw_sleep_dispatch(sleep_state, flags, ACPI_SLEEP_FUNCTION_ID);
+	    acpi_hw_sleep_dispatch(sleep_state, ACPI_SLEEP_FUNCTION_ID);
 	return_ACPI_STATUS(status);
 }
 
@@ -391,14 +390,14 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
  *              Called with interrupts DISABLED.
  *
  ******************************************************************************/
-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state, u8 flags)
+acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
 {
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
 
 	status =
-	    acpi_hw_sleep_dispatch(sleep_state, flags,
+	    acpi_hw_sleep_dispatch(sleep_state,
 				   ACPI_WAKE_PREP_FUNCTION_ID);
 	return_ACPI_STATUS(status);
 }
@@ -423,8 +422,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
 
 	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
 
-
-	status = acpi_hw_sleep_dispatch(sleep_state, 0, ACPI_WAKE_FUNCTION_ID);
+	status = acpi_hw_sleep_dispatch(sleep_state, ACPI_WAKE_FUNCTION_ID);
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index ea4c6d52605..29e51bc0138 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -387,6 +387,7 @@ acpi_get_table_with_size(char *signature,
 
 	return (AE_NOT_FOUND);
 }
+ACPI_EXPORT_SYMBOL(acpi_get_table_with_size)
 
 acpi_status
 acpi_get_table(char *signature,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index ff2c876ec41..45e3e1759fb 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1052,6 +1052,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 /* this is needed to learn about changes made in suspended state */
 static int acpi_battery_resume(struct device *dev)
 {
@@ -1068,6 +1069,7 @@ static int acpi_battery_resume(struct device *dev)
 	acpi_battery_update(battery);
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(acpi_battery_pm, NULL, acpi_battery_resume);
 
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index 6680df36b96..be603995854 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -1,5 +1,6 @@
 /*
  * Copyright 2012 Red Hat, Inc <mjg@redhat.com>
+ * Copyright 2012 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -11,20 +12,10 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/sysfs.h>
-#include <linux/io.h>
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
+#include <linux/efi-bgrt.h>
 
-static struct acpi_table_bgrt *bgrt_tab;
 static struct kobject *bgrt_kobj;
 
-struct bmp_header {
-	u16 id;
-	u32 size;
-} __attribute ((packed));
-
-static struct bmp_header bmp_header;
-
 static ssize_t show_version(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
@@ -63,18 +54,7 @@ static DEVICE_ATTR(yoffset, S_IRUGO, show_yoffset, NULL);
 static ssize_t show_image(struct file *file, struct kobject *kobj,
 	       struct bin_attribute *attr, char *buf, loff_t off, size_t count)
 {
-	int size = attr->size;
-	void __iomem *image = attr->private;
-
-	if (off >= size) {
-		count = 0;
-	} else {
-		if (off + count > size)
-			count = size - off;
-
-		memcpy_fromio(buf, image+off, count);
-	}
-
+	memcpy(buf, attr->private + off, count);
 	return count;
 }
 
@@ -101,45 +81,18 @@ static struct attribute_group bgrt_attribute_group = {
 
 static int __init bgrt_init(void)
 {
-	acpi_status status;
 	int ret;
-	void __iomem *bgrt;
 
-	if (acpi_disabled)
-		return -ENODEV;
-
-	status = acpi_get_table("BGRT", 0,
-				(struct acpi_table_header **)&bgrt_tab);
-
-	if (ACPI_FAILURE(status))
+	if (!bgrt_image)
 		return -ENODEV;
 
 	sysfs_bin_attr_init(&image_attr);
-
-	bgrt = ioremap(bgrt_tab->image_address, sizeof(struct bmp_header));
-
-	if (!bgrt) {
-		ret = -EINVAL;
-		goto out_err;
-	}
-
-	memcpy_fromio(&bmp_header, bgrt, sizeof(bmp_header));
-	image_attr.size = bmp_header.size;
-	iounmap(bgrt);
-
-	image_attr.private = ioremap(bgrt_tab->image_address, image_attr.size);
-
-	if (!image_attr.private) {
-		ret = -EINVAL;
-		goto out_err;
-	}
-
+	image_attr.private = bgrt_image;
+	image_attr.size = bgrt_image_size;
 
 	bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
-	if (!bgrt_kobj) {
-		ret = -EINVAL;
-		goto out_iounmap;
-	}
+	if (!bgrt_kobj)
+		return -EINVAL;
 
 	ret = sysfs_create_group(bgrt_kobj, &bgrt_attribute_group);
 	if (ret)
@@ -155,22 +108,11 @@ out_group:
 	sysfs_remove_group(bgrt_kobj, &bgrt_attribute_group);
 out_kobject:
 	kobject_put(bgrt_kobj);
-out_iounmap:
-	iounmap(image_attr.private);
-out_err:
 	return ret;
 }
 
-static void __exit bgrt_exit(void)
-{
-	iounmap(image_attr.private);
-	sysfs_remove_group(bgrt_kobj, &bgrt_attribute_group);
-	sysfs_remove_bin_file(bgrt_kobj, &image_attr);
-}
-
 module_init(bgrt_init);
-module_exit(bgrt_exit);
 
-MODULE_AUTHOR("Matthew Garrett");
+MODULE_AUTHOR("Matthew Garrett, Josh Triplett <josh@joshtriplett.org>");
 MODULE_DESCRIPTION("BGRT boot graphic support");
 MODULE_LICENSE("GPL");
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 9628652e080..e0596954290 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -237,6 +237,16 @@ static int __acpi_bus_get_power(struct acpi_device *device, int *state)
 	} else if (result == ACPI_STATE_D3_HOT) {
 		result = ACPI_STATE_D3;
 	}
+
+	/*
+	 * If we were unsure about the device parent's power state up to this
+	 * point, the fact that the device is in D0 implies that the parent has
+	 * to be in D0 too.
+	 */
+	if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN
+	    && result == ACPI_STATE_D0)
+		device->parent->power.state = ACPI_STATE_D0;
+
 	*state = result;
 
  out:
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 79d4c22f7a6..314a3b84bbc 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -78,7 +78,9 @@ static int acpi_button_add(struct acpi_device *device);
 static int acpi_button_remove(struct acpi_device *device, int type);
 static void acpi_button_notify(struct acpi_device *device, u32 event);
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_button_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(acpi_button_pm, NULL, acpi_button_resume);
 
 static struct acpi_driver acpi_button_driver = {
@@ -310,6 +312,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
 	}
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_button_resume(struct device *dev)
 {
 	struct acpi_device *device = to_acpi_device(dev);
@@ -319,6 +322,7 @@ static int acpi_button_resume(struct device *dev)
 		return acpi_lid_send_state(device);
 	return 0;
 }
+#endif
 
 static int acpi_button_add(struct acpi_device *device)
 {
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 669d9ee80d1..bc36a476f1a 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -53,8 +53,10 @@ static const struct acpi_device_id fan_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, fan_device_ids);
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_fan_suspend(struct device *dev);
 static int acpi_fan_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(acpi_fan_pm, acpi_fan_suspend, acpi_fan_resume);
 
 static struct acpi_driver acpi_fan_driver = {
@@ -184,6 +186,7 @@ static int acpi_fan_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_fan_suspend(struct device *dev)
 {
 	if (!dev)
@@ -207,6 +210,7 @@ static int acpi_fan_resume(struct device *dev)
 
 	return result;
 }
+#endif
 
 static int __init acpi_fan_init(void)
 {
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index e56f3be7b07..cb31298ca68 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -237,6 +237,8 @@ acpi_parse_processor_affinity(struct acpi_subtable_header *header,
 	return 0;
 }
 
+static int __initdata parsed_numa_memblks;
+
 static int __init
 acpi_parse_memory_affinity(struct acpi_subtable_header * header,
 			   const unsigned long end)
@@ -250,8 +252,8 @@ acpi_parse_memory_affinity(struct acpi_subtable_header * header,
 	acpi_table_print_srat_entry(header);
 
 	/* let architecture-dependent part to do it */
-	acpi_numa_memory_affinity_init(memory_affinity);
-
+	if (!acpi_numa_memory_affinity_init(memory_affinity))
+		parsed_numa_memblks++;
 	return 0;
 }
 
@@ -304,8 +306,10 @@ int __init acpi_numa_init(void)
 
 	acpi_numa_arch_fixup();
 
-	if (cnt <= 0)
-		return cnt ?: -ENOENT;
+	if (cnt < 0)
+		return cnt;
+	else if (!parsed_numa_memblks)
+		return -ENOENT;
 	return 0;
 }
 
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index ec54014c321..bce469c0b48 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -27,7 +27,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/pci.h>
@@ -71,9 +71,11 @@ static struct acpi_driver acpi_pci_root_driver = {
 		},
 };
 
+/* Lock to protect both acpi_pci_roots and acpi_pci_drivers lists */
+static DEFINE_MUTEX(acpi_pci_root_lock);
 static LIST_HEAD(acpi_pci_roots);
+static LIST_HEAD(acpi_pci_drivers);
 
-static struct acpi_pci_driver *sub_driver;
 static DEFINE_MUTEX(osc_lock);
 
 int acpi_pci_register_driver(struct acpi_pci_driver *driver)
@@ -81,55 +83,46 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver)
 	int n = 0;
 	struct acpi_pci_root *root;
 
-	struct acpi_pci_driver **pptr = &sub_driver;
-	while (*pptr)
-		pptr = &(*pptr)->next;
-	*pptr = driver;
-
-	if (!driver->add)
-		return 0;
-
-	list_for_each_entry(root, &acpi_pci_roots, node) {
-		driver->add(root->device->handle);
-		n++;
-	}
+	mutex_lock(&acpi_pci_root_lock);
+	list_add_tail(&driver->node, &acpi_pci_drivers);
+	if (driver->add)
+		list_for_each_entry(root, &acpi_pci_roots, node) {
+			driver->add(root);
+			n++;
+		}
+	mutex_unlock(&acpi_pci_root_lock);
 
 	return n;
 }
-
 EXPORT_SYMBOL(acpi_pci_register_driver);
 
 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
 {
 	struct acpi_pci_root *root;
 
-	struct acpi_pci_driver **pptr = &sub_driver;
-	while (*pptr) {
-		if (*pptr == driver)
-			break;
-		pptr = &(*pptr)->next;
-	}
-	BUG_ON(!*pptr);
-	*pptr = (*pptr)->next;
-
-	if (!driver->remove)
-		return;
-
-	list_for_each_entry(root, &acpi_pci_roots, node)
-		driver->remove(root->device->handle);
+	mutex_lock(&acpi_pci_root_lock);
+	list_del(&driver->node);
+	if (driver->remove)
+		list_for_each_entry(root, &acpi_pci_roots, node)
+			driver->remove(root);
+	mutex_unlock(&acpi_pci_root_lock);
 }
-
 EXPORT_SYMBOL(acpi_pci_unregister_driver);
 
 acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
 {
 	struct acpi_pci_root *root;
+	acpi_handle handle = NULL;
 	
+	mutex_lock(&acpi_pci_root_lock);
 	list_for_each_entry(root, &acpi_pci_roots, node)
 		if ((root->segment == (u16) seg) &&
-		    (root->secondary.start == (u16) bus))
-			return root->device->handle;
-	return NULL;		
+		    (root->secondary.start == (u16) bus)) {
+			handle = root->device->handle;
+			break;
+		}
+	mutex_unlock(&acpi_pci_root_lock);
+	return handle;
 }
 
 EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
@@ -277,12 +270,15 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
 {
 	struct acpi_pci_root *root;
+	struct acpi_device *device;
 
-	list_for_each_entry(root, &acpi_pci_roots, node) {
-		if (root->device->handle == handle)
-			return root;
-	}
-	return NULL;
+	if (acpi_bus_get_device(handle, &device) ||
+	    acpi_match_device_ids(device, root_device_ids))
+		return NULL;
+
+	root = acpi_driver_data(device);
+
+	return root;
 }
 EXPORT_SYMBOL_GPL(acpi_pci_find_root);
 
@@ -518,8 +514,9 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 	 * TBD: Need PCI interface for enumeration/configuration of roots.
 	 */
 
-	/* TBD: Locking */
+	mutex_lock(&acpi_pci_root_lock);
 	list_add_tail(&root->node, &acpi_pci_roots);
+	mutex_unlock(&acpi_pci_root_lock);
 
 	printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
 	       acpi_device_name(device), acpi_device_bid(device),
@@ -538,7 +535,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 			    "Bus %04x:%02x not present in PCI namespace\n",
 			    root->segment, (unsigned int)root->secondary.start);
 		result = -ENODEV;
-		goto end;
+		goto out_del_root;
 	}
 
 	/*
@@ -548,7 +545,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 	 */
 	result = acpi_pci_bind_root(device);
 	if (result)
-		goto end;
+		goto out_del_root;
 
 	/*
 	 * PCI Routing Table
@@ -573,8 +570,15 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 			OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
 	if (pci_msi_enabled())
 		flags |= OSC_MSI_SUPPORT;
-	if (flags != base_flags)
-		acpi_pci_osc_support(root, flags);
+	if (flags != base_flags) {
+		status = acpi_pci_osc_support(root, flags);
+		if (ACPI_FAILURE(status)) {
+			dev_info(root->bus->bridge, "ACPI _OSC support "
+				"notification failed, disabling PCIe ASPM\n");
+			pcie_no_aspm();
+			flags = base_flags;
+		}
+	}
 
 	if (!pcie_ports_disabled
 	    && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
@@ -626,9 +630,11 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 
 	return 0;
 
+out_del_root:
+	mutex_lock(&acpi_pci_root_lock);
+	list_del(&root->node);
+	mutex_unlock(&acpi_pci_root_lock);
 end:
-	if (!list_empty(&root->node))
-		list_del(&root->node);
 	kfree(root);
 	return result;
 }
@@ -636,18 +642,34 @@ end:
 static int acpi_pci_root_start(struct acpi_device *device)
 {
 	struct acpi_pci_root *root = acpi_driver_data(device);
+	struct acpi_pci_driver *driver;
+
+	mutex_lock(&acpi_pci_root_lock);
+	list_for_each_entry(driver, &acpi_pci_drivers, node)
+		if (driver->add)
+			driver->add(root);
+	mutex_unlock(&acpi_pci_root_lock);
 
 	pci_bus_add_devices(root->bus);
+
 	return 0;
 }
 
 static int acpi_pci_root_remove(struct acpi_device *device, int type)
 {
 	struct acpi_pci_root *root = acpi_driver_data(device);
+	struct acpi_pci_driver *driver;
+
+	mutex_lock(&acpi_pci_root_lock);
+	list_for_each_entry(driver, &acpi_pci_drivers, node)
+		if (driver->remove)
+			driver->remove(root);
 
 	device_set_run_wake(root->bus->bridge, false);
 	pci_acpi_remove_bus_pm_notifier(device);
 
+	list_del(&root->node);
+	mutex_unlock(&acpi_pci_root_lock);
 	kfree(root);
 	return 0;
 }
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index e50e31a518a..d22585f21ae 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -67,8 +67,8 @@ struct acpi_pci_slot {
 	struct list_head list;		/* node in the list of slots */
 };
 
-static int acpi_pci_slot_add(acpi_handle handle);
-static void acpi_pci_slot_remove(acpi_handle handle);
+static int acpi_pci_slot_add(struct acpi_pci_root *root);
+static void acpi_pci_slot_remove(struct acpi_pci_root *root);
 
 static LIST_HEAD(slot_list);
 static DEFINE_MUTEX(slot_list_lock);
@@ -233,45 +233,20 @@ out:
 
 /*
  * walk_root_bridge - generic root bridge walker
- * @handle: points to an acpi_pci_root
+ * @root: poiner of an acpi_pci_root
  * @user_function: user callback for slot objects
  *
  * Call user_function for all objects underneath this root bridge.
  * Walk p2p bridges underneath us and call user_function on those too.
  */
 static int
-walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function)
+walk_root_bridge(struct acpi_pci_root *root, acpi_walk_callback user_function)
 {
-	int seg, bus;
-	unsigned long long tmp;
 	acpi_status status;
-	acpi_handle dummy_handle;
-	struct pci_bus *pci_bus;
+	acpi_handle handle = root->device->handle;
+	struct pci_bus *pci_bus = root->bus;
 	struct callback_args context;
 
-	/* If the bridge doesn't have _STA, we assume it is always there */
-	status = acpi_get_handle(handle, "_STA", &dummy_handle);
-	if (ACPI_SUCCESS(status)) {
-		status = acpi_evaluate_integer(handle, "_STA", NULL, &tmp);
-		if (ACPI_FAILURE(status)) {
-			info("%s: _STA evaluation failure\n", __func__);
-			return 0;
-		}
-		if ((tmp & ACPI_STA_DEVICE_FUNCTIONING) == 0)
-			/* don't register this object */
-			return 0;
-	}
-
-	status = acpi_evaluate_integer(handle, "_SEG", NULL, &tmp);
-	seg = ACPI_SUCCESS(status) ? tmp : 0;
-
-	status = acpi_evaluate_integer(handle, "_BBN", NULL, &tmp);
-	bus = ACPI_SUCCESS(status) ? tmp : 0;
-
-	pci_bus = pci_find_bus(seg, bus);
-	if (!pci_bus)
-		return 0;
-
 	context.pci_bus = pci_bus;
 	context.user_function = user_function;
 	context.root_handle = handle;
@@ -295,11 +270,11 @@ walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function)
  * @handle: points to an acpi_pci_root
  */
 static int
-acpi_pci_slot_add(acpi_handle handle)
+acpi_pci_slot_add(struct acpi_pci_root *root)
 {
 	acpi_status status;
 
-	status = walk_root_bridge(handle, register_slot);
+	status = walk_root_bridge(root, register_slot);
 	if (ACPI_FAILURE(status))
 		err("%s: register_slot failure - %d\n", __func__, status);
 
@@ -311,10 +286,11 @@ acpi_pci_slot_add(acpi_handle handle)
  * @handle: points to an acpi_pci_root
  */
 static void
-acpi_pci_slot_remove(acpi_handle handle)
+acpi_pci_slot_remove(struct acpi_pci_root *root)
 {
 	struct acpi_pci_slot *slot, *tmp;
 	struct pci_bus *pbus;
+	acpi_handle handle = root->device->handle;
 
 	mutex_lock(&slot_list_lock);
 	list_for_each_entry_safe(slot, tmp, &slot_list, list) {
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 215ecd09740..40e38a06ba8 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -67,7 +67,9 @@ static const struct acpi_device_id power_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, power_device_ids);
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_power_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(acpi_power_pm, NULL, acpi_power_resume);
 
 static struct acpi_driver acpi_power_driver = {
@@ -105,6 +107,7 @@ struct acpi_power_resource {
 
 	/* List of devices relying on this power resource */
 	struct acpi_power_resource_device *devices;
+	struct mutex devices_lock;
 };
 
 static struct list_head acpi_power_resource_list;
@@ -223,7 +226,6 @@ static void acpi_power_on_device(struct acpi_power_managed_device *device)
 
 static int __acpi_power_on(struct acpi_power_resource *resource)
 {
-	struct acpi_power_resource_device *device_list = resource->devices;
 	acpi_status status = AE_OK;
 
 	status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
@@ -236,19 +238,15 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n",
 			  resource->name));
 
-	while (device_list) {
-		acpi_power_on_device(device_list->device);
-
-		device_list = device_list->next;
-	}
-
 	return 0;
 }
 
 static int acpi_power_on(acpi_handle handle)
 {
 	int result = 0;
+	bool resume_device = false;
 	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource_device *device_list;
 
 	result = acpi_power_get_context(handle, &resource);
 	if (result)
@@ -264,10 +262,25 @@ static int acpi_power_on(acpi_handle handle)
 		result = __acpi_power_on(resource);
 		if (result)
 			resource->ref_count--;
+		else
+			resume_device = true;
 	}
 
 	mutex_unlock(&resource->resource_lock);
 
+	if (!resume_device)
+		return result;
+
+	mutex_lock(&resource->devices_lock);
+
+	device_list = resource->devices;
+	while (device_list) {
+		acpi_power_on_device(device_list->device);
+		device_list = device_list->next;
+	}
+
+	mutex_unlock(&resource->devices_lock);
+
 	return result;
 }
 
@@ -353,7 +366,7 @@ static void __acpi_power_resource_unregister_device(struct device *dev,
 	if (acpi_power_get_context(res_handle, &resource))
 		return;
 
-	mutex_lock(&resource->resource_lock);
+	mutex_lock(&resource->devices_lock);
 	prev = NULL;
 	curr = resource->devices;
 	while (curr) {
@@ -370,7 +383,7 @@ static void __acpi_power_resource_unregister_device(struct device *dev,
 		prev = curr;
 		curr = curr->next;
 	}
-	mutex_unlock(&resource->resource_lock);
+	mutex_unlock(&resource->devices_lock);
 }
 
 /* Unlink dev from all power resources in _PR0 */
@@ -412,10 +425,10 @@ static int __acpi_power_resource_register_device(
 
 	power_resource_device->device = powered_device;
 
-	mutex_lock(&resource->resource_lock);
+	mutex_lock(&resource->devices_lock);
 	power_resource_device->next = resource->devices;
 	resource->devices = power_resource_device;
-	mutex_unlock(&resource->resource_lock);
+	mutex_unlock(&resource->devices_lock);
 
 	return 0;
 }
@@ -460,7 +473,7 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
 	return ret;
 
 no_power_resource:
-	printk(KERN_WARNING PREFIX "Invalid Power Resource to register!");
+	printk(KERN_DEBUG PREFIX "Invalid Power Resource to register!");
 	return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(acpi_power_resource_register_device);
@@ -719,6 +732,7 @@ static int acpi_power_add(struct acpi_device *device)
 
 	resource->device = device;
 	mutex_init(&resource->resource_lock);
+	mutex_init(&resource->devices_lock);
 	strcpy(resource->name, device->pnp.bus_id);
 	strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
@@ -775,6 +789,7 @@ static int acpi_power_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_power_resume(struct device *dev)
 {
 	int result = 0, state;
@@ -803,6 +818,7 @@ static int acpi_power_resume(struct device *dev)
 
 	return result;
 }
+#endif
 
 int __init acpi_power_init(void)
 {
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index ff8e04f2fab..e78c2a52ea4 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -437,7 +437,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
 		/* Normal CPU soft online event */
 		} else {
 			acpi_processor_ppc_has_changed(pr, 0);
-			acpi_processor_cst_has_changed(pr);
+			acpi_processor_hotplug(pr);
 			acpi_processor_reevaluate_tstate(pr, action);
 			acpi_processor_tstate_has_changed(pr);
 		}
@@ -475,7 +475,7 @@ static __ref int acpi_processor_start(struct acpi_processor *pr)
 	acpi_processor_get_limit_info(pr);
 
 	if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
-		acpi_processor_power_init(pr, device);
+		acpi_processor_power_init(pr);
 
 	pr->cdev = thermal_cooling_device_register("Processor", device,
 						   &processor_cooling_ops);
@@ -509,7 +509,7 @@ err_remove_sysfs_thermal:
 err_thermal_unregister:
 	thermal_cooling_device_unregister(pr->cdev);
 err_power_exit:
-	acpi_processor_power_exit(pr, device);
+	acpi_processor_power_exit(pr);
 
 	return result;
 }
@@ -620,7 +620,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
 			return -EINVAL;
 	}
 
-	acpi_processor_power_exit(pr, device);
+	acpi_processor_power_exit(pr);
 
 	sysfs_remove_link(&device->dev.kobj, "sysdev");
 
@@ -905,8 +905,6 @@ static int __init acpi_processor_init(void)
 	if (acpi_disabled)
 		return 0;
 
-	memset(&errata, 0, sizeof(errata));
-
 	result = acpi_bus_register_driver(&acpi_processor_driver);
 	if (result < 0)
 		return result;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ad3730b4038..3655ab92381 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -79,6 +79,8 @@ module_param(bm_check_disable, uint, 0000);
 static unsigned int latency_factor __read_mostly = 2;
 module_param(latency_factor, uint, 0644);
 
+static DEFINE_PER_CPU(struct cpuidle_device *, acpi_cpuidle_device);
+
 static int disabled_by_idle_boot_param(void)
 {
 	return boot_option_idle_override == IDLE_POLL ||
@@ -483,8 +485,6 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
 		if (obj->type != ACPI_TYPE_INTEGER)
 			continue;
 
-		cx.power = obj->integer.value;
-
 		current_count++;
 		memcpy(&(pr->power.states[current_count]), &cx, sizeof(cx));
 
@@ -1000,7 +1000,7 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr)
 	int i, count = CPUIDLE_DRIVER_STATE_START;
 	struct acpi_processor_cx *cx;
 	struct cpuidle_state_usage *state_usage;
-	struct cpuidle_device *dev = &pr->power.dev;
+	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);
 
 	if (!pr->flags.power_setup_done)
 		return -EINVAL;
@@ -1132,6 +1132,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
 int acpi_processor_hotplug(struct acpi_processor *pr)
 {
 	int ret = 0;
+	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);
 
 	if (disabled_by_idle_boot_param())
 		return 0;
@@ -1147,11 +1148,11 @@ int acpi_processor_hotplug(struct acpi_processor *pr)
 		return -ENODEV;
 
 	cpuidle_pause_and_lock();
-	cpuidle_disable_device(&pr->power.dev);
+	cpuidle_disable_device(dev);
 	acpi_processor_get_power_info(pr);
 	if (pr->flags.power) {
 		acpi_processor_setup_cpuidle_cx(pr);
-		ret = cpuidle_enable_device(&pr->power.dev);
+		ret = cpuidle_enable_device(dev);
 	}
 	cpuidle_resume_and_unlock();
 
@@ -1162,6 +1163,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 {
 	int cpu;
 	struct acpi_processor *_pr;
+	struct cpuidle_device *dev;
 
 	if (disabled_by_idle_boot_param())
 		return 0;
@@ -1192,7 +1194,8 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 			_pr = per_cpu(processors, cpu);
 			if (!_pr || !_pr->flags.power_setup_done)
 				continue;
-			cpuidle_disable_device(&_pr->power.dev);
+			dev = per_cpu(acpi_cpuidle_device, cpu);
+			cpuidle_disable_device(dev);
 		}
 
 		/* Populate Updated C-state information */
@@ -1206,7 +1209,8 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 			acpi_processor_get_power_info(_pr);
 			if (_pr->flags.power) {
 				acpi_processor_setup_cpuidle_cx(_pr);
-				cpuidle_enable_device(&_pr->power.dev);
+				dev = per_cpu(acpi_cpuidle_device, cpu);
+				cpuidle_enable_device(dev);
 			}
 		}
 		put_online_cpus();
@@ -1218,11 +1222,11 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 
 static int acpi_processor_registered;
 
-int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
-			      struct acpi_device *device)
+int __cpuinit acpi_processor_power_init(struct acpi_processor *pr)
 {
 	acpi_status status = 0;
 	int retval;
+	struct cpuidle_device *dev;
 	static int first_run;
 
 	if (disabled_by_idle_boot_param())
@@ -1268,11 +1272,18 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 			printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
 					acpi_idle_driver.name);
 		}
+
+		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+		if (!dev)
+			return -ENOMEM;
+		per_cpu(acpi_cpuidle_device, pr->id) = dev;
+
+		acpi_processor_setup_cpuidle_cx(pr);
+
 		/* Register per-cpu cpuidle_device. Cpuidle driver
 		 * must already be registered before registering device
 		 */
-		acpi_processor_setup_cpuidle_cx(pr);
-		retval = cpuidle_register_device(&pr->power.dev);
+		retval = cpuidle_register_device(dev);
 		if (retval) {
 			if (acpi_processor_registered == 0)
 				cpuidle_unregister_driver(&acpi_idle_driver);
@@ -1283,14 +1294,15 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 	return 0;
 }
 
-int acpi_processor_power_exit(struct acpi_processor *pr,
-			      struct acpi_device *device)
+int acpi_processor_power_exit(struct acpi_processor *pr)
 {
+	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);
+
 	if (disabled_by_idle_boot_param())
 		return 0;
 
 	if (pr->flags.power) {
-		cpuidle_unregister_device(&pr->power.dev);
+		cpuidle_unregister_device(dev);
 		acpi_processor_registered--;
 		if (acpi_processor_registered == 0)
 			cpuidle_unregister_driver(&acpi_idle_driver);
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index a093dc163a4..836bfe06904 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -324,6 +324,34 @@ static int acpi_processor_get_performance_control(struct acpi_processor *pr)
 	return result;
 }
 
+#ifdef CONFIG_X86
+/*
+ * Some AMDs have 50MHz frequency multiples, but only provide 100MHz rounding
+ * in their ACPI data. Calculate the real values and fix up the _PSS data.
+ */
+static void amd_fixup_frequency(struct acpi_processor_px *px, int i)
+{
+	u32 hi, lo, fid, did;
+	int index = px->control & 0x00000007;
+
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+		return;
+
+	if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10)
+	    || boot_cpu_data.x86 == 0x11) {
+		rdmsr(MSR_AMD_PSTATE_DEF_BASE + index, lo, hi);
+		fid = lo & 0x3f;
+		did = (lo >> 6) & 7;
+		if (boot_cpu_data.x86 == 0x10)
+			px->core_frequency = (100 * (fid + 0x10)) >> did;
+		else
+			px->core_frequency = (100 * (fid + 8)) >> did;
+	}
+}
+#else
+static void amd_fixup_frequency(struct acpi_processor_px *px, int i) {};
+#endif
+
 static int acpi_processor_get_performance_states(struct acpi_processor *pr)
 {
 	int result = 0;
@@ -379,6 +407,8 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr)
 			goto end;
 		}
 
+		amd_fixup_frequency(px, i);
+
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "State [%d]: core_frequency[%d] power[%d] transition_latency[%d] bus_master_latency[%d] control[0x%x] status[0x%x]\n",
 				  i,
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index c0b9aa5faf4..ff0740e0a9c 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -988,6 +988,7 @@ static void acpi_sbs_rmdirs(void)
 #endif
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_sbs_resume(struct device *dev)
 {
 	struct acpi_sbs *sbs;
@@ -997,6 +998,7 @@ static int acpi_sbs_resume(struct device *dev)
 	acpi_sbs_callback(sbs);
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(acpi_sbs_pm, NULL, acpi_sbs_resume);
 
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 7a7a9c92924..fdcdbb65291 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -28,36 +28,7 @@
 #include "internal.h"
 #include "sleep.h"
 
-u8 wake_sleep_flags = ACPI_NO_OPTIONAL_METHODS;
-static unsigned int gts, bfs;
-static int set_param_wake_flag(const char *val, struct kernel_param *kp)
-{
-	int ret = param_set_int(val, kp);
-
-	if (ret)
-		return ret;
-
-	if (kp->arg == (const char *)&gts) {
-		if (gts)
-			wake_sleep_flags |= ACPI_EXECUTE_GTS;
-		else
-			wake_sleep_flags &= ~ACPI_EXECUTE_GTS;
-	}
-	if (kp->arg == (const char *)&bfs) {
-		if (bfs)
-			wake_sleep_flags |= ACPI_EXECUTE_BFS;
-		else
-			wake_sleep_flags &= ~ACPI_EXECUTE_BFS;
-	}
-	return ret;
-}
-module_param_call(gts, set_param_wake_flag, param_get_int, &gts, 0644);
-module_param_call(bfs, set_param_wake_flag, param_get_int, &bfs, 0644);
-MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
-MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
-
 static u8 sleep_states[ACPI_S_STATE_COUNT];
-static bool pwr_btn_event_pending;
 
 static void acpi_sleep_tts_switch(u32 acpi_state)
 {
@@ -110,6 +81,7 @@ static int acpi_sleep_prepare(u32 acpi_state)
 
 #ifdef CONFIG_ACPI_SLEEP
 static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+static bool pwr_btn_event_pending;
 
 /*
  * The ACPI specification wants us to save NVS memory regions during hibernation
@@ -305,7 +277,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	switch (acpi_state) {
 	case ACPI_STATE_S1:
 		barrier();
-		status = acpi_enter_sleep_state(acpi_state, wake_sleep_flags);
+		status = acpi_enter_sleep_state(acpi_state);
 		break;
 
 	case ACPI_STATE_S3:
@@ -319,8 +291,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	/* This violates the spec but is required for bug compatibility. */
 	acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1);
 
-	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(acpi_state, wake_sleep_flags);
+	/* Reprogram control registers */
+	acpi_leave_sleep_state_prep(acpi_state);
 
 	/* ACPI 3.0 specs (P62) says that it's the responsibility
 	 * of the OSPM to clear the status bit [ implying that the
@@ -603,9 +575,9 @@ static int acpi_hibernation_enter(void)
 	ACPI_FLUSH_CPU_CACHE();
 
 	/* This shouldn't return.  If it returns, we have a problem */
-	status = acpi_enter_sleep_state(ACPI_STATE_S4, wake_sleep_flags);
-	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(ACPI_STATE_S4, wake_sleep_flags);
+	status = acpi_enter_sleep_state(ACPI_STATE_S4);
+	/* Reprogram control registers */
+	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
 
 	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
@@ -617,8 +589,8 @@ static void acpi_hibernation_leave(void)
 	 * enable it here.
 	 */
 	acpi_enable();
-	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(ACPI_STATE_S4, wake_sleep_flags);
+	/* Reprogram control registers */
+	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
 	/* Check the hardware signature */
 	if (facs && s4_hardware_signature != facs->hardware_signature) {
 		printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
@@ -892,33 +864,7 @@ static void acpi_power_off(void)
 	/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
 	printk(KERN_DEBUG "%s called\n", __func__);
 	local_irq_disable();
-	acpi_enter_sleep_state(ACPI_STATE_S5, wake_sleep_flags);
-}
-
-/*
- * ACPI 2.0 created the optional _GTS and _BFS,
- * but industry adoption has been neither rapid nor broad.
- *
- * Linux gets into trouble when it executes poorly validated
- * paths through the BIOS, so disable _GTS and _BFS by default,
- * but do speak up and offer the option to enable them.
- */
-static void __init acpi_gts_bfs_check(void)
-{
-	acpi_handle dummy;
-
-	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_PATHNAME__GTS, &dummy)))
-	{
-		printk(KERN_NOTICE PREFIX "BIOS offers _GTS\n");
-		printk(KERN_NOTICE PREFIX "If \"acpi.gts=1\" improves suspend, "
-			"please notify linux-acpi@vger.kernel.org\n");
-	}
-	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_PATHNAME__BFS, &dummy)))
-	{
-		printk(KERN_NOTICE PREFIX "BIOS offers _BFS\n");
-		printk(KERN_NOTICE PREFIX "If \"acpi.bfs=1\" improves resume, "
-			"please notify linux-acpi@vger.kernel.org\n");
-	}
+	acpi_enter_sleep_state(ACPI_STATE_S5);
 }
 
 int __init acpi_sleep_init(void)
@@ -979,6 +925,5 @@ int __init acpi_sleep_init(void)
 	 * object can also be evaluated when the system enters S5.
 	 */
 	register_reboot_notifier(&tts_notifier);
-	acpi_gts_bfs_check();
 	return 0;
 }
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 240a2440097..7c3f98ba4af 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -173,7 +173,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp)
 {
 	int result = 0;
 
-	if (!strncmp(val, "enable", strlen("enable"))) {
+	if (!strncmp(val, "enable", sizeof("enable") - 1)) {
 		result = acpi_debug_trace(trace_method_name, trace_debug_level,
 					  trace_debug_layer, 0);
 		if (result)
@@ -181,7 +181,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp)
 		goto exit;
 	}
 
-	if (!strncmp(val, "disable", strlen("disable"))) {
+	if (!strncmp(val, "disable", sizeof("disable") - 1)) {
 		int name = 0;
 		result = acpi_debug_trace((char *)&name, trace_debug_level,
 					  trace_debug_layer, 0);
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 9fe90e9fecb..edda74a4340 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -106,7 +106,9 @@ static const struct acpi_device_id  thermal_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, thermal_device_ids);
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_thermal_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(acpi_thermal_pm, NULL, acpi_thermal_resume);
 
 static struct acpi_driver acpi_thermal_driver = {
@@ -1041,6 +1043,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_thermal_resume(struct device *dev)
 {
 	struct acpi_thermal *tz;
@@ -1075,6 +1078,7 @@ static int acpi_thermal_resume(struct device *dev)
 
 	return AE_OK;
 }
+#endif
 
 static int thermal_act(const struct dmi_system_id *d) {
 
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 2be8ef1d309..e08d322d01d 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -115,7 +115,7 @@ config SATA_SIL24
 	  If unsure, say N.
 
 config ATA_SFF
-	bool "ATA SFF support"
+	bool "ATA SFF support (for legacy IDE and PATA)"
 	default y
 	help
 	  This option adds support for ATA controllers with SFF
@@ -214,6 +214,14 @@ config SATA_DWC_VDEBUG
 	help
 	  This option enables the taskfile dumping and NCQ debugging.
 
+config SATA_HIGHBANK
+	tristate "Calxeda Highbank SATA support"
+	help
+	  This option enables support for the Calxeda Highbank SoC's
+	  onboard SATA.
+
+	  If unsure, say N.
+
 config SATA_MV
 	tristate "Marvell SATA support"
 	help
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index a454a139b1d..9329dafba91 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_SATA_FSL)		+= sata_fsl.o
 obj-$(CONFIG_SATA_INIC162X)	+= sata_inic162x.o
 obj-$(CONFIG_SATA_SIL24)	+= sata_sil24.o
 obj-$(CONFIG_SATA_DWC)		+= sata_dwc_460ex.o
+obj-$(CONFIG_SATA_HIGHBANK)	+= sata_highbank.o libahci.o
 
 # SFF w/ custom DMA
 obj-$(CONFIG_PDC_ADMA)		+= pdc_adma.o
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 062e6a1a248..7862d17976b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -256,10 +256,21 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci }, /* Lynx Point RAID */
 	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
 	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci }, /* Lynx Point RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci }, /* Lynx Point-LP AHCI */
+	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci }, /* Lynx Point-LP AHCI */
+	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci }, /* Lynx Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci }, /* Lynx Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci }, /* Lynx Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci }, /* Lynx Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci }, /* Lynx Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci }, /* Lynx Point-LP RAID */
 
 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
+	/* JMicron 362B and 362C have an AHCI function with IDE class code */
+	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
+	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
 
 	/* ATI */
 	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
@@ -385,6 +396,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
 	{ PCI_DEVICE(0x1b4b, 0x917a),
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
+	{ PCI_DEVICE(0x1b4b, 0x9192),
+	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
 	{ PCI_DEVICE(0x1b4b, 0x91a3),
 	  .driver_data = board_ahci_yes_fbs },
 
@@ -392,7 +405,10 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
 
 	/* Asmedia */
-	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1061 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
 
 	/* Generic, PCI class code for AHCI */
 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index c2594ddf25b..9be471200a0 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -35,6 +35,7 @@
 #ifndef _AHCI_H
 #define _AHCI_H
 
+#include <linux/clk.h>
 #include <linux/libata.h>
 
 /* Enclosure Management Control */
@@ -115,6 +116,9 @@ enum {
 	HOST_CAP2_BOH		= (1 << 0),  /* BIOS/OS handoff supported */
 	HOST_CAP2_NVMHCI	= (1 << 1),  /* NVMHCI supported */
 	HOST_CAP2_APST		= (1 << 2),  /* Automatic partial to slumber */
+	HOST_CAP2_SDS		= (1 << 3),  /* Support device sleep */
+	HOST_CAP2_SADM		= (1 << 4),  /* Support aggressive DevSlp */
+	HOST_CAP2_DESO		= (1 << 5),  /* DevSlp from slumber only */
 
 	/* registers for each SATA port */
 	PORT_LST_ADDR		= 0x00, /* command list DMA addr */
@@ -133,6 +137,7 @@ enum {
 	PORT_SCR_ACT		= 0x34, /* SATA phy register: SActive */
 	PORT_SCR_NTF		= 0x3c, /* SATA phy register: SNotification */
 	PORT_FBS		= 0x40, /* FIS-based Switching */
+	PORT_DEVSLP		= 0x44, /* device sleep */
 
 	/* PORT_IRQ_{STAT,MASK} bits */
 	PORT_IRQ_COLD_PRES	= (1 << 31), /* cold presence detect */
@@ -186,6 +191,7 @@ enum {
 	PORT_CMD_ICC_PARTIAL	= (0x2 << 28), /* Put i/f in partial state */
 	PORT_CMD_ICC_SLUMBER	= (0x6 << 28), /* Put i/f in slumber state */
 
+	/* PORT_FBS bits */
 	PORT_FBS_DWE_OFFSET	= 16, /* FBS device with error offset */
 	PORT_FBS_ADO_OFFSET	= 12, /* FBS active dev optimization offset */
 	PORT_FBS_DEV_OFFSET	= 8,  /* FBS device to issue offset */
@@ -194,6 +200,15 @@ enum {
 	PORT_FBS_DEC		= (1 << 1), /* FBS device error clear */
 	PORT_FBS_EN		= (1 << 0), /* Enable FBS */
 
+	/* PORT_DEVSLP bits */
+	PORT_DEVSLP_DM_OFFSET	= 25,             /* DITO multiplier offset */
+	PORT_DEVSLP_DM_MASK	= (0xf << 25),    /* DITO multiplier mask */
+	PORT_DEVSLP_DITO_OFFSET	= 15,             /* DITO offset */
+	PORT_DEVSLP_MDAT_OFFSET	= 10,             /* Minimum assertion time */
+	PORT_DEVSLP_DETO_OFFSET	= 2,              /* DevSlp exit timeout */
+	PORT_DEVSLP_DSP		= (1 << 1),       /* DevSlp present */
+	PORT_DEVSLP_ADSE	= (1 << 0),       /* Aggressive DevSlp enable */
+
 	/* hpriv->flags bits */
 
 #define AHCI_HFLAGS(flags)		.private_data	= (void *)(flags)
@@ -302,6 +317,7 @@ struct ahci_host_priv {
 	u32 			em_loc; /* enclosure management location */
 	u32			em_buf_sz;	/* EM buffer size in byte */
 	u32			em_msg_type;	/* EM message type */
+	struct clk		*clk;		/* Only for platforms supporting clk */
 };
 
 extern int ahci_ignore_sss;
@@ -320,6 +336,7 @@ extern struct device_attribute *ahci_sdev_attrs[];
 extern struct ata_port_operations ahci_ops;
 extern struct ata_port_operations ahci_pmp_retry_srst_ops;
 
+unsigned int ahci_dev_classify(struct ata_port *ap);
 void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag,
 			u32 opts);
 void ahci_save_initial_config(struct device *dev,
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 09728e09cb3..b1ae48054dc 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -12,6 +12,7 @@
  * any later version.
  */
 
+#include <linux/clk.h>
 #include <linux/kernel.h>
 #include <linux/gfp.h>
 #include <linux/module.h>
@@ -118,6 +119,17 @@ static int __init ahci_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	hpriv->clk = clk_get(dev, NULL);
+	if (IS_ERR(hpriv->clk)) {
+		dev_err(dev, "can't get clock\n");
+	} else {
+		rc = clk_prepare_enable(hpriv->clk);
+		if (rc) {
+			dev_err(dev, "clock prepare enable failed");
+			goto free_clk;
+		}
+	}
+
 	/*
 	 * Some platforms might need to prepare for mmio region access,
 	 * which could be done in the following init call. So, the mmio
@@ -127,7 +139,7 @@ static int __init ahci_probe(struct platform_device *pdev)
 	if (pdata && pdata->init) {
 		rc = pdata->init(dev, hpriv->mmio);
 		if (rc)
-			return rc;
+			goto disable_unprepare_clk;
 	}
 
 	ahci_save_initial_config(dev, hpriv,
@@ -153,7 +165,7 @@ static int __init ahci_probe(struct platform_device *pdev)
 	host = ata_host_alloc_pinfo(dev, ppi, n_ports);
 	if (!host) {
 		rc = -ENOMEM;
-		goto err0;
+		goto pdata_exit;
 	}
 
 	host->private_data = hpriv;
@@ -183,7 +195,7 @@ static int __init ahci_probe(struct platform_device *pdev)
 
 	rc = ahci_reset_controller(host);
 	if (rc)
-		goto err0;
+		goto pdata_exit;
 
 	ahci_init_controller(host);
 	ahci_print_info(host, "platform");
@@ -191,12 +203,18 @@ static int __init ahci_probe(struct platform_device *pdev)
 	rc = ata_host_activate(host, irq, ahci_interrupt, IRQF_SHARED,
 			       &ahci_platform_sht);
 	if (rc)
-		goto err0;
+		goto pdata_exit;
 
 	return 0;
-err0:
+pdata_exit:
 	if (pdata && pdata->exit)
 		pdata->exit(dev);
+disable_unprepare_clk:
+	if (!IS_ERR(hpriv->clk))
+		clk_disable_unprepare(hpriv->clk);
+free_clk:
+	if (!IS_ERR(hpriv->clk))
+		clk_put(hpriv->clk);
 	return rc;
 }
 
@@ -205,12 +223,18 @@ static int __devexit ahci_remove(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct ahci_platform_data *pdata = dev_get_platdata(dev);
 	struct ata_host *host = dev_get_drvdata(dev);
+	struct ahci_host_priv *hpriv = host->private_data;
 
 	ata_host_detach(host);
 
 	if (pdata && pdata->exit)
 		pdata->exit(dev);
 
+	if (!IS_ERR(hpriv->clk)) {
+		clk_disable_unprepare(hpriv->clk);
+		clk_put(hpriv->clk);
+	}
+
 	return 0;
 }
 
@@ -245,6 +269,10 @@ static int ahci_suspend(struct device *dev)
 
 	if (pdata && pdata->suspend)
 		return pdata->suspend(dev);
+
+	if (!IS_ERR(hpriv->clk))
+		clk_disable_unprepare(hpriv->clk);
+
 	return 0;
 }
 
@@ -252,18 +280,27 @@ static int ahci_resume(struct device *dev)
 {
 	struct ahci_platform_data *pdata = dev_get_platdata(dev);
 	struct ata_host *host = dev_get_drvdata(dev);
+	struct ahci_host_priv *hpriv = host->private_data;
 	int rc;
 
+	if (!IS_ERR(hpriv->clk)) {
+		rc = clk_prepare_enable(hpriv->clk);
+		if (rc) {
+			dev_err(dev, "clock prepare enable failed");
+			return rc;
+		}
+	}
+
 	if (pdata && pdata->resume) {
 		rc = pdata->resume(dev);
 		if (rc)
-			return rc;
+			goto disable_unprepare_clk;
 	}
 
 	if (dev->power.power_state.event == PM_EVENT_SUSPEND) {
 		rc = ahci_reset_controller(host);
 		if (rc)
-			return rc;
+			goto disable_unprepare_clk;
 
 		ahci_init_controller(host);
 	}
@@ -271,13 +308,18 @@ static int ahci_resume(struct device *dev)
 	ata_host_resume(host);
 
 	return 0;
+
+disable_unprepare_clk:
+	if (!IS_ERR(hpriv->clk))
+		clk_disable_unprepare(hpriv->clk);
+
+	return rc;
 }
 #endif
 
 SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_suspend, ahci_resume);
 
 static const struct of_device_id ahci_of_match[] = {
-	{ .compatible = "calxeda,hb-ahci", },
 	{ .compatible = "snps,spear-ahci", },
 	{},
 };
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 3c809bfbccf..ef773e12af7 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -329,6 +329,14 @@ static const struct pci_device_id piix_pci_tbl[] = {
 	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (Lynx Point) */
 	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Lynx Point-LP) */
+	{ 0x8086, 0x9c00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Lynx Point-LP) */
+	{ 0x8086, 0x9c01, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Lynx Point-LP) */
+	{ 0x8086, 0x9c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Lynx Point-LP) */
+	{ 0x8086, 0x9c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (DH89xxCC) */
 	{ 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	{ }	/* terminate list */
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index f9eaa82311a..4201e535a8c 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -45,6 +45,7 @@
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
 #include "ahci.h"
+#include "libata.h"
 
 static int ahci_skip_host_reset;
 int ahci_ignore_sss;
@@ -76,6 +77,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc);
 static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc);
 static void ahci_freeze(struct ata_port *ap);
 static void ahci_thaw(struct ata_port *ap);
+static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep);
 static void ahci_enable_fbs(struct ata_port *ap);
 static void ahci_disable_fbs(struct ata_port *ap);
 static void ahci_pmp_attach(struct ata_port *ap);
@@ -193,6 +195,10 @@ module_param(ahci_em_messages, int, 0444);
 MODULE_PARM_DESC(ahci_em_messages,
 	"AHCI Enclosure Management Message control (0 = off, 1 = on)");
 
+int devslp_idle_timeout = 1000;	/* device sleep idle timeout in ms */
+module_param(devslp_idle_timeout, int, 0644);
+MODULE_PARM_DESC(devslp_idle_timeout, "device sleep idle timeout");
+
 static void ahci_enable_ahci(void __iomem *mmio)
 {
 	int i;
@@ -702,6 +708,16 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 		}
 	}
 
+	/* set aggressive device sleep */
+	if ((hpriv->cap2 & HOST_CAP2_SDS) &&
+	    (hpriv->cap2 & HOST_CAP2_SADM) &&
+	    (link->device->flags & ATA_DFLAG_DEVSLP)) {
+		if (policy == ATA_LPM_MIN_POWER)
+			ahci_set_aggressive_devslp(ap, true);
+		else
+			ahci_set_aggressive_devslp(ap, false);
+	}
+
 	if (policy == ATA_LPM_MAX_POWER) {
 		sata_link_scr_lpm(link, policy, false);
 
@@ -1139,7 +1155,7 @@ static void ahci_dev_config(struct ata_device *dev)
 	}
 }
 
-static unsigned int ahci_dev_classify(struct ata_port *ap)
+unsigned int ahci_dev_classify(struct ata_port *ap)
 {
 	void __iomem *port_mmio = ahci_port_base(ap);
 	struct ata_taskfile tf;
@@ -1153,6 +1169,7 @@ static unsigned int ahci_dev_classify(struct ata_port *ap)
 
 	return ata_dev_classify(&tf);
 }
+EXPORT_SYMBOL_GPL(ahci_dev_classify);
 
 void ahci_fill_cmd_slot(struct ahci_port_priv *pp, unsigned int tag,
 			u32 opts)
@@ -1889,6 +1906,81 @@ static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
 		ahci_kick_engine(ap);
 }
 
+static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
+{
+	void __iomem *port_mmio = ahci_port_base(ap);
+	struct ata_device *dev = ap->link.device;
+	u32 devslp, dm, dito, mdat, deto;
+	int rc;
+	unsigned int err_mask;
+
+	devslp = readl(port_mmio + PORT_DEVSLP);
+	if (!(devslp & PORT_DEVSLP_DSP)) {
+		dev_err(ap->host->dev, "port does not support device sleep\n");
+		return;
+	}
+
+	/* disable device sleep */
+	if (!sleep) {
+		if (devslp & PORT_DEVSLP_ADSE) {
+			writel(devslp & ~PORT_DEVSLP_ADSE,
+			       port_mmio + PORT_DEVSLP);
+			err_mask = ata_dev_set_feature(dev,
+						       SETFEATURES_SATA_DISABLE,
+						       SATA_DEVSLP);
+			if (err_mask && err_mask != AC_ERR_DEV)
+				ata_dev_warn(dev, "failed to disable DEVSLP\n");
+		}
+		return;
+	}
+
+	/* device sleep was already enabled */
+	if (devslp & PORT_DEVSLP_ADSE)
+		return;
+
+	/* set DITO, MDAT, DETO and enable DevSlp, need to stop engine first */
+	rc = ahci_stop_engine(ap);
+	if (rc)
+		return;
+
+	dm = (devslp & PORT_DEVSLP_DM_MASK) >> PORT_DEVSLP_DM_OFFSET;
+	dito = devslp_idle_timeout / (dm + 1);
+	if (dito > 0x3ff)
+		dito = 0x3ff;
+
+	/* Use the nominal value 10 ms if the read MDAT is zero,
+	 * the nominal value of DETO is 20 ms.
+	 */
+	if (dev->sata_settings[ATA_LOG_DEVSLP_VALID] &
+	    ATA_LOG_DEVSLP_VALID_MASK) {
+		mdat = dev->sata_settings[ATA_LOG_DEVSLP_MDAT] &
+		       ATA_LOG_DEVSLP_MDAT_MASK;
+		if (!mdat)
+			mdat = 10;
+		deto = dev->sata_settings[ATA_LOG_DEVSLP_DETO];
+		if (!deto)
+			deto = 20;
+	} else {
+		mdat = 10;
+		deto = 20;
+	}
+
+	devslp |= ((dito << PORT_DEVSLP_DITO_OFFSET) |
+		   (mdat << PORT_DEVSLP_MDAT_OFFSET) |
+		   (deto << PORT_DEVSLP_DETO_OFFSET) |
+		   PORT_DEVSLP_ADSE);
+	writel(devslp, port_mmio + PORT_DEVSLP);
+
+	ahci_start_engine(ap);
+
+	/* enable device sleep feature for the drive */
+	err_mask = ata_dev_set_feature(dev,
+				       SETFEATURES_SATA_ENABLE,
+				       SATA_DEVSLP);
+	if (err_mask && err_mask != AC_ERR_DEV)
+		ata_dev_warn(dev, "failed to enable DEVSLP\n");
+}
+
 static void ahci_enable_fbs(struct ata_port *ap)
 {
 	struct ahci_port_priv *pp = ap->private_data;
@@ -2163,7 +2255,8 @@ void ahci_print_info(struct ata_host *host, const char *scc_s)
 		"flags: "
 		"%s%s%s%s%s%s%s"
 		"%s%s%s%s%s%s%s"
-		"%s%s%s%s%s%s\n"
+		"%s%s%s%s%s%s%s"
+		"%s%s\n"
 		,
 
 		cap & HOST_CAP_64 ? "64bit " : "",
@@ -2183,6 +2276,9 @@ void ahci_print_info(struct ata_host *host, const char *scc_s)
 		cap & HOST_CAP_CCC ? "ccc " : "",
 		cap & HOST_CAP_EMS ? "ems " : "",
 		cap & HOST_CAP_SXS ? "sxs " : "",
+		cap2 & HOST_CAP2_DESO ? "deso " : "",
+		cap2 & HOST_CAP2_SADM ? "sadm " : "",
+		cap2 & HOST_CAP2_SDS ? "sds " : "",
 		cap2 & HOST_CAP2_APST ? "apst " : "",
 		cap2 & HOST_CAP2_NVMHCI ? "nvmp " : "",
 		cap2 & HOST_CAP2_BOH ? "boh " : ""
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 902b5a45717..fd9ecf74e63 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -60,17 +60,7 @@ acpi_handle ata_ap_acpi_handle(struct ata_port *ap)
 	if (ap->flags & ATA_FLAG_ACPI_SATA)
 		return NULL;
 
-	/*
-	 * If acpi bind operation has already happened, we can get the handle
-	 * for the port by checking the corresponding scsi_host device's
-	 * firmware node, otherwise we will need to find out the handle from
-	 * its parent's acpi node.
-	 */
-	if (ap->scsi_host)
-		return DEVICE_ACPI_HANDLE(&ap->scsi_host->shost_gendev);
-	else
-		return acpi_get_child(DEVICE_ACPI_HANDLE(ap->host->dev),
-				ap->port_no);
+	return acpi_get_child(DEVICE_ACPI_HANDLE(ap->host->dev), ap->port_no);
 }
 EXPORT_SYMBOL(ata_ap_acpi_handle);
 
@@ -1101,6 +1091,9 @@ static int ata_acpi_bind_host(struct ata_port *ap, acpi_handle *handle)
 	if (!*handle)
 		return -ENODEV;
 
+	if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0)
+		ap->pflags |= ATA_PFLAG_INIT_GTM_VALID;
+
 	return 0;
 }
 
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index fadd5866d40..3cc7096cfda 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -774,7 +774,7 @@ int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
 		tf->lbam = (block >> 8) & 0xff;
 		tf->lbal = block & 0xff;
 
-		tf->device = 1 << 6;
+		tf->device = ATA_LBA;
 		if (tf->flags & ATA_TFLAG_FUA)
 			tf->device |= 1 << 7;
 	} else if (dev->flags & ATA_DFLAG_LBA) {
@@ -2155,6 +2155,7 @@ int ata_dev_configure(struct ata_device *dev)
 	int print_info = ehc->i.flags & ATA_EHI_PRINTINFO;
 	const u16 *id = dev->id;
 	unsigned long xfer_mask;
+	unsigned int err_mask;
 	char revbuf[7];		/* XYZ-99\0 */
 	char fwrevbuf[ATA_ID_FW_REV_LEN+1];
 	char modelbuf[ATA_ID_PROD_LEN+1];
@@ -2323,6 +2324,26 @@ int ata_dev_configure(struct ata_device *dev)
 			}
 		}
 
+		/* check and mark DevSlp capability */
+		if (ata_id_has_devslp(dev->id))
+			dev->flags |= ATA_DFLAG_DEVSLP;
+
+		/* Obtain SATA Settings page from Identify Device Data Log,
+		 * which contains DevSlp timing variables etc.
+		 * Exclude old devices with ata_id_has_ncq()
+		 */
+		if (ata_id_has_ncq(dev->id)) {
+			err_mask = ata_read_log_page(dev,
+						     ATA_LOG_SATA_ID_DEV_DATA,
+						     ATA_LOG_SATA_SETTINGS,
+						     dev->sata_settings,
+						     1);
+			if (err_mask)
+				ata_dev_dbg(dev,
+					    "failed to get Identify Device Data, Emask 0x%x\n",
+					    err_mask);
+		}
+
 		dev->cdb_len = 16;
 	}
 
@@ -2351,8 +2372,6 @@ int ata_dev_configure(struct ata_device *dev)
 		    (ap->flags & ATA_FLAG_AN) && ata_id_has_atapi_AN(id) &&
 		    (!sata_pmp_attached(ap) ||
 		     sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf) == 0)) {
-			unsigned int err_mask;
-
 			/* issue SET feature command to turn this on */
 			err_mask = ata_dev_set_feature(dev,
 					SETFEATURES_SATA_ENABLE, SATA_AN);
@@ -3598,7 +3617,7 @@ int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	switch (policy) {
 	case ATA_LPM_MAX_POWER:
 		/* disable all LPM transitions */
-		scontrol |= (0x3 << 8);
+		scontrol |= (0x7 << 8);
 		/* initiate transition to active state */
 		if (spm_wakeup) {
 			scontrol |= (0x4 << 12);
@@ -3608,12 +3627,12 @@ int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	case ATA_LPM_MED_POWER:
 		/* allow LPM to PARTIAL */
 		scontrol &= ~(0x1 << 8);
-		scontrol |= (0x2 << 8);
+		scontrol |= (0x6 << 8);
 		break;
 	case ATA_LPM_MIN_POWER:
 		if (ata_link_nr_enabled(link) > 0)
 			/* no restrictions on LPM transitions */
-			scontrol &= ~(0x3 << 8);
+			scontrol &= ~(0x7 << 8);
 		else {
 			/* empty port, power off */
 			scontrol &= ~0xf;
@@ -4062,7 +4081,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "_NEC DV5800A", 	NULL,		ATA_HORKAGE_NODMA },
 	{ "SAMSUNG CD-ROM SN-124", "N001",	ATA_HORKAGE_NODMA },
 	{ "Seagate STT20000A", NULL,		ATA_HORKAGE_NODMA },
-	{ "2GB ATA Flash Disk", "ADMA428M",	ATA_HORKAGE_NODMA },
+	{ " 2GB ATA Flash Disk", "ADMA428M",	ATA_HORKAGE_NODMA },
 	/* Odd clown on sil3726/4726 PMPs */
 	{ "Config  Disk",	NULL,		ATA_HORKAGE_DISABLE },
 
@@ -4128,6 +4147,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 
 	/* Devices that do not need bridging limits applied */
 	{ "MTRON MSP-SATA*",		NULL,	ATA_HORKAGE_BRIDGE_OK, },
+	{ "BUFFALO HD-QSU2/R5",		NULL,	ATA_HORKAGE_BRIDGE_OK, },
 
 	/* Devices which aren't very happy with higher link speeds */
 	{ "WD My Book",			NULL,	ATA_HORKAGE_1_5_GBPS, },
@@ -4471,6 +4491,7 @@ unsigned int ata_dev_set_feature(struct ata_device *dev, u8 enable, u8 feature)
 	DPRINTK("EXIT, err_mask=%x\n", err_mask);
 	return err_mask;
 }
+EXPORT_SYMBOL_GPL(ata_dev_set_feature);
 
 /**
  *	ata_dev_init_params - Issue INIT DEV PARAMS command
@@ -5252,16 +5273,20 @@ bool ata_link_offline(struct ata_link *link)
 #ifdef CONFIG_PM
 static int ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
 			       unsigned int action, unsigned int ehi_flags,
-			       int wait)
+			       int *async)
 {
 	struct ata_link *link;
 	unsigned long flags;
-	int rc;
+	int rc = 0;
 
 	/* Previous resume operation might still be in
 	 * progress.  Wait for PM_PENDING to clear.
 	 */
 	if (ap->pflags & ATA_PFLAG_PM_PENDING) {
+		if (async) {
+			*async = -EAGAIN;
+			return 0;
+		}
 		ata_port_wait_eh(ap);
 		WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
 	}
@@ -5270,10 +5295,10 @@ static int ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
 	spin_lock_irqsave(ap->lock, flags);
 
 	ap->pm_mesg = mesg;
-	if (wait) {
-		rc = 0;
+	if (async)
+		ap->pm_result = async;
+	else
 		ap->pm_result = &rc;
-	}
 
 	ap->pflags |= ATA_PFLAG_PM_PENDING;
 	ata_for_each_link(link, ap, HOST_FIRST) {
@@ -5286,7 +5311,7 @@ static int ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
 	spin_unlock_irqrestore(ap->lock, flags);
 
 	/* wait and check result */
-	if (wait) {
+	if (!async) {
 		ata_port_wait_eh(ap);
 		WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
 	}
@@ -5294,9 +5319,8 @@ static int ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
 	return rc;
 }
 
-static int ata_port_suspend_common(struct device *dev, pm_message_t mesg)
+static int __ata_port_suspend_common(struct ata_port *ap, pm_message_t mesg, int *async)
 {
-	struct ata_port *ap = to_ata_port(dev);
 	unsigned int ehi_flags = ATA_EHI_QUIET;
 	int rc;
 
@@ -5311,10 +5335,17 @@ static int ata_port_suspend_common(struct device *dev, pm_message_t mesg)
 	if (mesg.event == PM_EVENT_SUSPEND)
 		ehi_flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_NO_RECOVERY;
 
-	rc = ata_port_request_pm(ap, mesg, 0, ehi_flags, 1);
+	rc = ata_port_request_pm(ap, mesg, 0, ehi_flags, async);
 	return rc;
 }
 
+static int ata_port_suspend_common(struct device *dev, pm_message_t mesg)
+{
+	struct ata_port *ap = to_ata_port(dev);
+
+	return __ata_port_suspend_common(ap, mesg, NULL);
+}
+
 static int ata_port_suspend(struct device *dev)
 {
 	if (pm_runtime_suspended(dev))
@@ -5339,16 +5370,22 @@ static int ata_port_poweroff(struct device *dev)
 	return ata_port_suspend_common(dev, PMSG_HIBERNATE);
 }
 
-static int ata_port_resume_common(struct device *dev)
+static int __ata_port_resume_common(struct ata_port *ap, int *async)
 {
-	struct ata_port *ap = to_ata_port(dev);
 	int rc;
 
 	rc = ata_port_request_pm(ap, PMSG_ON, ATA_EH_RESET,
-		ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, 1);
+		ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, async);
 	return rc;
 }
 
+static int ata_port_resume_common(struct device *dev)
+{
+	struct ata_port *ap = to_ata_port(dev);
+
+	return __ata_port_resume_common(ap, NULL);
+}
+
 static int ata_port_resume(struct device *dev)
 {
 	int rc;
@@ -5381,6 +5418,24 @@ static const struct dev_pm_ops ata_port_pm_ops = {
 	.runtime_idle = ata_port_runtime_idle,
 };
 
+/* sas ports don't participate in pm runtime management of ata_ports,
+ * and need to resume ata devices at the domain level, not the per-port
+ * level. sas suspend/resume is async to allow parallel port recovery
+ * since sas has multiple ata_port instances per Scsi_Host.
+ */
+int ata_sas_port_async_suspend(struct ata_port *ap, int *async)
+{
+	return __ata_port_suspend_common(ap, PMSG_SUSPEND, async);
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_async_suspend);
+
+int ata_sas_port_async_resume(struct ata_port *ap, int *async)
+{
+	return __ata_port_resume_common(ap, async);
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_async_resume);
+
+
 /**
  *	ata_host_suspend - suspend host
  *	@host: host to suspend
@@ -5926,24 +5981,18 @@ int ata_host_start(struct ata_host *host)
 }
 
 /**
- *	ata_sas_host_init - Initialize a host struct
+ *	ata_sas_host_init - Initialize a host struct for sas (ipr, libsas)
  *	@host:	host to initialize
  *	@dev:	device host is attached to
- *	@flags:	host flags
  *	@ops:	port_ops
  *
- *	LOCKING:
- *	PCI/etc. bus probe sem.
- *
  */
-/* KILLME - the only user left is ipr */
 void ata_host_init(struct ata_host *host, struct device *dev,
-		   unsigned long flags, struct ata_port_operations *ops)
+		   struct ata_port_operations *ops)
 {
 	spin_lock_init(&host->lock);
 	mutex_init(&host->eh_mutex);
 	host->dev = dev;
-	host->flags = flags;
 	host->ops = ops;
 }
 
@@ -6387,6 +6436,7 @@ static int __init ata_parse_force_one(char **cur,
 		{ "nohrst",	.lflags		= ATA_LFLAG_NO_HRST },
 		{ "nosrst",	.lflags		= ATA_LFLAG_NO_SRST },
 		{ "norst",	.lflags		= ATA_LFLAG_NO_HRST | ATA_LFLAG_NO_SRST },
+		{ "rstonce",	.lflags		= ATA_LFLAG_RST_ONCE },
 	};
 	char *start = *cur, *p = *cur;
 	char *id, *val, *endp;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 7d4535e989b..e60437cd0d1 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1487,6 +1487,7 @@ static const char *ata_err_string(unsigned int err_mask)
 /**
  *	ata_read_log_page - read a specific log page
  *	@dev: target device
+ *	@log: log to read
  *	@page: page to read
  *	@buf: buffer to store read page
  *	@sectors: number of sectors to read
@@ -1499,17 +1500,18 @@ static const char *ata_err_string(unsigned int err_mask)
  *	RETURNS:
  *	0 on success, AC_ERR_* mask otherwise.
  */
-static unsigned int ata_read_log_page(struct ata_device *dev,
-				      u8 page, void *buf, unsigned int sectors)
+unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
+			       u8 page, void *buf, unsigned int sectors)
 {
 	struct ata_taskfile tf;
 	unsigned int err_mask;
 
-	DPRINTK("read log page - page %d\n", page);
+	DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
 
 	ata_tf_init(dev, &tf);
 	tf.command = ATA_CMD_READ_LOG_EXT;
-	tf.lbal = page;
+	tf.lbal = log;
+	tf.lbam = page;
 	tf.nsect = sectors;
 	tf.hob_nsect = sectors >> 8;
 	tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_LBA48 | ATA_TFLAG_DEVICE;
@@ -1545,7 +1547,7 @@ static int ata_eh_read_log_10h(struct ata_device *dev,
 	u8 csum;
 	int i;
 
-	err_mask = ata_read_log_page(dev, ATA_LOG_SATA_NCQ, buf, 1);
+	err_mask = ata_read_log_page(dev, ATA_LOG_SATA_NCQ, 0, buf, 1);
 	if (err_mask)
 		return -EIO;
 
@@ -2623,6 +2625,8 @@ int ata_eh_reset(struct ata_link *link, int classify,
 	 */
 	while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX)
 		max_tries++;
+	if (link->flags & ATA_LFLAG_RST_ONCE)
+		max_tries = 1;
 	if (link->flags & ATA_LFLAG_NO_HRST)
 		hardreset = NULL;
 	if (link->flags & ATA_LFLAG_NO_SRST)
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 8ec81ca8f65..e3bda074fa1 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1655,7 +1655,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
 		if (unlikely(scmd->cmd_len < 10))
 			goto invalid_fld;
 		scsi_10_lba_len(cdb, &block, &n_block);
-		if (unlikely(cdb[1] & (1 << 3)))
+		if (cdb[1] & (1 << 3))
 			tf_flags |= ATA_TFLAG_FUA;
 		break;
 	case READ_6:
@@ -1675,7 +1675,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
 		if (unlikely(scmd->cmd_len < 16))
 			goto invalid_fld;
 		scsi_16_lba_len(cdb, &block, &n_block);
-		if (unlikely(cdb[1] & (1 << 3)))
+		if (cdb[1] & (1 << 3))
 			tf_flags |= ATA_TFLAG_FUA;
 		break;
 	default:
@@ -2205,9 +2205,33 @@ static unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf)
 }
 
 /**
+ *	modecpy - Prepare response for MODE SENSE
+ *	@dest: output buffer
+ *	@src: data being copied
+ *	@n: length of mode page
+ *	@changeable: whether changeable parameters are requested
+ *
+ *	Generate a generic MODE SENSE page for either current or changeable
+ *	parameters.
+ *
+ *	LOCKING:
+ *	None.
+ */
+static void modecpy(u8 *dest, const u8 *src, int n, bool changeable)
+{
+	if (changeable) {
+		memcpy(dest, src, 2);
+		memset(dest + 2, 0, n - 2);
+	} else {
+		memcpy(dest, src, n);
+	}
+}
+
+/**
  *	ata_msense_caching - Simulate MODE SENSE caching info page
  *	@id: device IDENTIFY data
  *	@buf: output buffer
+ *	@changeable: whether changeable parameters are requested
  *
  *	Generate a caching info page, which conditionally indicates
  *	write caching to the SCSI layer, depending on device
@@ -2216,12 +2240,12 @@ static unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf)
  *	LOCKING:
  *	None.
  */
-static unsigned int ata_msense_caching(u16 *id, u8 *buf)
+static unsigned int ata_msense_caching(u16 *id, u8 *buf, bool changeable)
 {
-	memcpy(buf, def_cache_mpage, sizeof(def_cache_mpage));
-	if (ata_id_wcache_enabled(id))
+	modecpy(buf, def_cache_mpage, sizeof(def_cache_mpage), changeable);
+	if (changeable || ata_id_wcache_enabled(id))
 		buf[2] |= (1 << 2);	/* write cache enable */
-	if (!ata_id_rahead_enabled(id))
+	if (!changeable && !ata_id_rahead_enabled(id))
 		buf[12] |= (1 << 5);	/* disable read ahead */
 	return sizeof(def_cache_mpage);
 }
@@ -2229,30 +2253,33 @@ static unsigned int ata_msense_caching(u16 *id, u8 *buf)
 /**
  *	ata_msense_ctl_mode - Simulate MODE SENSE control mode page
  *	@buf: output buffer
+ *	@changeable: whether changeable parameters are requested
  *
  *	Generate a generic MODE SENSE control mode page.
  *
  *	LOCKING:
  *	None.
  */
-static unsigned int ata_msense_ctl_mode(u8 *buf)
+static unsigned int ata_msense_ctl_mode(u8 *buf, bool changeable)
 {
-	memcpy(buf, def_control_mpage, sizeof(def_control_mpage));
+	modecpy(buf, def_control_mpage, sizeof(def_control_mpage), changeable);
 	return sizeof(def_control_mpage);
 }
 
 /**
  *	ata_msense_rw_recovery - Simulate MODE SENSE r/w error recovery page
  *	@buf: output buffer
+ *	@changeable: whether changeable parameters are requested
  *
  *	Generate a generic MODE SENSE r/w error recovery page.
  *
  *	LOCKING:
  *	None.
  */
-static unsigned int ata_msense_rw_recovery(u8 *buf)
+static unsigned int ata_msense_rw_recovery(u8 *buf, bool changeable)
 {
-	memcpy(buf, def_rw_recovery_mpage, sizeof(def_rw_recovery_mpage));
+	modecpy(buf, def_rw_recovery_mpage, sizeof(def_rw_recovery_mpage),
+		changeable);
 	return sizeof(def_rw_recovery_mpage);
 }
 
@@ -2316,11 +2343,11 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
 	page_control = scsicmd[2] >> 6;
 	switch (page_control) {
 	case 0: /* current */
+	case 1: /* changeable */
+	case 2: /* defaults */
 		break;  /* supported */
 	case 3: /* saved */
 		goto saving_not_supp;
-	case 1: /* changeable */
-	case 2: /* defaults */
 	default:
 		goto invalid_fld;
 	}
@@ -2341,21 +2368,21 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
 
 	switch(pg) {
 	case RW_RECOVERY_MPAGE:
-		p += ata_msense_rw_recovery(p);
+		p += ata_msense_rw_recovery(p, page_control == 1);
 		break;
 
 	case CACHE_MPAGE:
-		p += ata_msense_caching(args->id, p);
+		p += ata_msense_caching(args->id, p, page_control == 1);
 		break;
 
 	case CONTROL_MPAGE:
-		p += ata_msense_ctl_mode(p);
+		p += ata_msense_ctl_mode(p, page_control == 1);
 		break;
 
 	case ALL_MPAGES:
-		p += ata_msense_rw_recovery(p);
-		p += ata_msense_caching(args->id, p);
-		p += ata_msense_ctl_mode(p);
+		p += ata_msense_rw_recovery(p, page_control == 1);
+		p += ata_msense_caching(args->id, p, page_control == 1);
+		p += ata_msense_ctl_mode(p, page_control == 1);
 		break;
 
 	default:		/* invalid page code */
@@ -3080,6 +3107,188 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
 }
 
 /**
+ *	ata_mselect_caching - Simulate MODE SELECT for caching info page
+ *	@qc: Storage for translated ATA taskfile
+ *	@buf: input buffer
+ *	@len: number of valid bytes in the input buffer
+ *
+ *	Prepare a taskfile to modify caching information for the device.
+ *
+ *	LOCKING:
+ *	None.
+ */
+static int ata_mselect_caching(struct ata_queued_cmd *qc,
+			       const u8 *buf, int len)
+{
+	struct ata_taskfile *tf = &qc->tf;
+	struct ata_device *dev = qc->dev;
+	char mpage[CACHE_MPAGE_LEN];
+	u8 wce;
+
+	/*
+	 * The first two bytes of def_cache_mpage are a header, so offsets
+	 * in mpage are off by 2 compared to buf.  Same for len.
+	 */
+
+	if (len != CACHE_MPAGE_LEN - 2)
+		return -EINVAL;
+
+	wce = buf[0] & (1 << 2);
+
+	/*
+	 * Check that read-only bits are not modified.
+	 */
+	ata_msense_caching(dev->id, mpage, false);
+	mpage[2] &= ~(1 << 2);
+	mpage[2] |= wce;
+	if (memcmp(mpage + 2, buf, CACHE_MPAGE_LEN - 2) != 0)
+		return -EINVAL;
+
+	tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
+	tf->protocol = ATA_PROT_NODATA;
+	tf->nsect = 0;
+	tf->command = ATA_CMD_SET_FEATURES;
+	tf->feature = wce ? SETFEATURES_WC_ON : SETFEATURES_WC_OFF;
+	return 0;
+}
+
+/**
+ *	ata_scsiop_mode_select - Simulate MODE SELECT 6, 10 commands
+ *	@qc: Storage for translated ATA taskfile
+ *
+ *	Converts a MODE SELECT command to an ATA SET FEATURES taskfile.
+ *	Assume this is invoked for direct access devices (e.g. disks) only.
+ *	There should be no block descriptor for other device types.
+ *
+ *	LOCKING:
+ *	spin_lock_irqsave(host lock)
+ */
+static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
+{
+	struct scsi_cmnd *scmd = qc->scsicmd;
+	const u8 *cdb = scmd->cmnd;
+	const u8 *p;
+	u8 pg, spg;
+	unsigned six_byte, pg_len, hdr_len, bd_len;
+	int len;
+
+	VPRINTK("ENTER\n");
+
+	six_byte = (cdb[0] == MODE_SELECT);
+	if (six_byte) {
+		if (scmd->cmd_len < 5)
+			goto invalid_fld;
+
+		len = cdb[4];
+		hdr_len = 4;
+	} else {
+		if (scmd->cmd_len < 9)
+			goto invalid_fld;
+
+		len = (cdb[7] << 8) + cdb[8];
+		hdr_len = 8;
+	}
+
+	/* We only support PF=1, SP=0.  */
+	if ((cdb[1] & 0x11) != 0x10)
+		goto invalid_fld;
+
+	/* Test early for possible overrun.  */
+	if (!scsi_sg_count(scmd) || scsi_sglist(scmd)->length < len)
+		goto invalid_param_len;
+
+	p = page_address(sg_page(scsi_sglist(scmd)));
+
+	/* Move past header and block descriptors.  */
+	if (len < hdr_len)
+		goto invalid_param_len;
+
+	if (six_byte)
+		bd_len = p[3];
+	else
+		bd_len = (p[6] << 8) + p[7];
+
+	len -= hdr_len;
+	p += hdr_len;
+	if (len < bd_len)
+		goto invalid_param_len;
+	if (bd_len != 0 && bd_len != 8)
+		goto invalid_param;
+
+	len -= bd_len;
+	p += bd_len;
+	if (len == 0)
+		goto skip;
+
+	/* Parse both possible formats for the mode page headers.  */
+	pg = p[0] & 0x3f;
+	if (p[0] & 0x40) {
+		if (len < 4)
+			goto invalid_param_len;
+
+		spg = p[1];
+		pg_len = (p[2] << 8) | p[3];
+		p += 4;
+		len -= 4;
+	} else {
+		if (len < 2)
+			goto invalid_param_len;
+
+		spg = 0;
+		pg_len = p[1];
+		p += 2;
+		len -= 2;
+	}
+
+	/*
+	 * No mode subpages supported (yet) but asking for _all_
+	 * subpages may be valid
+	 */
+	if (spg && (spg != ALL_SUB_MPAGES))
+		goto invalid_param;
+	if (pg_len > len)
+		goto invalid_param_len;
+
+	switch (pg) {
+	case CACHE_MPAGE:
+		if (ata_mselect_caching(qc, p, pg_len) < 0)
+			goto invalid_param;
+		break;
+
+	default:		/* invalid page code */
+		goto invalid_param;
+	}
+
+	/*
+	 * Only one page has changeable data, so we only support setting one
+	 * page at a time.
+	 */
+	if (len > pg_len)
+		goto invalid_param;
+
+	return 0;
+
+ invalid_fld:
+	/* "Invalid field in CDB" */
+	ata_scsi_set_sense(scmd, ILLEGAL_REQUEST, 0x24, 0x0);
+	return 1;
+
+ invalid_param:
+	/* "Invalid field in parameter list" */
+	ata_scsi_set_sense(scmd, ILLEGAL_REQUEST, 0x26, 0x0);
+	return 1;
+
+ invalid_param_len:
+	/* "Parameter list length error" */
+	ata_scsi_set_sense(scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
+	return 1;
+
+ skip:
+	scmd->result = SAM_STAT_GOOD;
+	return 1;
+}
+
+/**
  *	ata_get_xlat_func - check if SCSI to ATA translation is possible
  *	@dev: ATA device
  *	@cmd: SCSI command opcode to consider
@@ -3119,6 +3328,11 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
 	case ATA_16:
 		return ata_scsi_pass_thru;
 
+	case MODE_SELECT:
+	case MODE_SELECT_10:
+		return ata_scsi_mode_select_xlat;
+		break;
+
 	case START_STOP:
 		return ata_scsi_start_stop_xlat;
 	}
@@ -3311,11 +3525,6 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
 		ata_scsi_rbuf_fill(&args, ata_scsiop_mode_sense);
 		break;
 
-	case MODE_SELECT:	/* unconditionally return */
-	case MODE_SELECT_10:	/* bad-field-in-cdb */
-		ata_scsi_invalid_field(cmd);
-		break;
-
 	case READ_CAPACITY:
 		ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap);
 		break;
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 50e4dff0604..7148a58020b 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -165,6 +165,8 @@ extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
 			       unsigned int action);
 extern void ata_eh_done(struct ata_link *link, struct ata_device *dev,
 			unsigned int action);
+extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
+				      u8 page, void *buf, unsigned int sectors);
 extern void ata_eh_autopsy(struct ata_port *ap);
 const char *ata_get_cmd_descript(u8 command);
 extern void ata_eh_report(struct ata_port *ap);
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index bfaa5cb1629..26201ebef3c 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -31,6 +31,7 @@
 #include <linux/kernel.h>
 #include <linux/libata.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/pata_arasan_cf_data.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
@@ -310,7 +311,7 @@ static int cf_init(struct arasan_cf_dev *acdev)
 	unsigned long flags;
 	int ret = 0;
 
-	ret = clk_enable(acdev->clk);
+	ret = clk_prepare_enable(acdev->clk);
 	if (ret) {
 		dev_dbg(acdev->host->dev, "clock enable failed");
 		return ret;
@@ -340,7 +341,7 @@ static void cf_exit(struct arasan_cf_dev *acdev)
 	writel(readl(acdev->vbase + OP_MODE) & ~CFHOST_ENB,
 			acdev->vbase + OP_MODE);
 	spin_unlock_irqrestore(&acdev->host->lock, flags);
-	clk_disable(acdev->clk);
+	clk_disable_unprepare(acdev->clk);
 }
 
 static void dma_callback(void *dev)
@@ -935,6 +936,14 @@ static int arasan_cf_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(arasan_cf_pm_ops, arasan_cf_suspend, arasan_cf_resume);
 
+#ifdef CONFIG_OF
+static const struct of_device_id arasan_cf_id_table[] = {
+	{ .compatible = "arasan,cf-spear1340" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, arasan_cf_id_table);
+#endif
+
 static struct platform_driver arasan_cf_driver = {
 	.probe		= arasan_cf_probe,
 	.remove		= __devexit_p(arasan_cf_remove),
@@ -942,6 +951,7 @@ static struct platform_driver arasan_cf_driver = {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
 		.pm	= &arasan_cf_pm_ops,
+		.of_match_table = of_match_ptr(arasan_cf_id_table),
 	},
 };
 
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 361c75cea57..24e51056ac2 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
+#include <linux/dmi.h>
 
 #define DRV_NAME "pata_atiixp"
 #define DRV_VERSION "0.4.6"
@@ -33,11 +34,26 @@ enum {
 	ATIIXP_IDE_UDMA_MODE 	= 0x56
 };
 
+static const struct dmi_system_id attixp_cable_override_dmi_table[] = {
+	{
+		/* Board has onboard PATA<->SATA converters */
+		.ident = "MSI E350DM-E33",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
+			DMI_MATCH(DMI_BOARD_NAME, "E350DM-E33(MS-7720)"),
+		},
+	},
+	{ }
+};
+
 static int atiixp_cable_detect(struct ata_port *ap)
 {
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 	u8 udma;
 
+	if (dmi_check_system(attixp_cable_override_dmi_table))
+		return ATA_CBL_PATA40_SHORT;
+
 	/* Hack from drivers/ide/pci. Really we want to know how to do the
 	   raw detection not play follow the bios mode guess */
 	pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ap->port_no, &udma);
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index 6ef2e3741f7..e056406d6a1 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -43,7 +43,7 @@
 #include <linux/dmaengine.h>
 #include <linux/ktime.h>
 
-#include <mach/dma.h>
+#include <linux/platform_data/dma-ep93xx.h>
 #include <mach/platform.h>
 
 #define DRV_NAME	"ep93xx-ide"
diff --git a/drivers/ata/pata_pxa.c b/drivers/ata/pata_pxa.c
index 0bb0fb7b26b..4b8ba559fe2 100644
--- a/drivers/ata/pata_pxa.c
+++ b/drivers/ata/pata_pxa.c
@@ -32,7 +32,7 @@
 #include <scsi/scsi_host.h>
 
 #include <mach/pxa2xx-regs.h>
-#include <mach/pata_pxa.h>
+#include <linux/platform_data/ata-pxa.h>
 #include <mach/dma.h>
 
 #define DRV_NAME	"pata_pxa"
diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c
index 1b372c29719..63ffb002ec6 100644
--- a/drivers/ata/pata_samsung_cf.c
+++ b/drivers/ata/pata_samsung_cf.c
@@ -23,7 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
-#include <plat/ata.h>
+#include <linux/platform_data/ata-samsung_cf.h>
 #include <plat/regs-ata.h>
 
 #define DRV_NAME "pata_samsung_cf"
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index d6577b93bee..124b2c1d9c0 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -123,6 +123,7 @@ enum {
 	ONLINE = (1 << 31),
 	GOING_OFFLINE = (1 << 30),
 	BIST_ERR = (1 << 29),
+	CLEAR_ERROR = (1 << 27),
 
 	FATAL_ERR_HC_MASTER_ERR = (1 << 18),
 	FATAL_ERR_PARITY_ERR_TX = (1 << 17),
@@ -143,6 +144,7 @@ enum {
 	    FATAL_ERR_CRC_ERR_RX |
 	    FATAL_ERR_FIFO_OVRFL_TX | FATAL_ERR_FIFO_OVRFL_RX,
 
+	INT_ON_DATA_LENGTH_MISMATCH = (1 << 12),
 	INT_ON_FATAL_ERR = (1 << 5),
 	INT_ON_PHYRDY_CHG = (1 << 4),
 
@@ -1181,25 +1183,54 @@ static void sata_fsl_host_intr(struct ata_port *ap)
 	u32 hstatus, done_mask = 0;
 	struct ata_queued_cmd *qc;
 	u32 SError;
+	u32 tag;
+	u32 status_mask = INT_ON_ERROR;
 
 	hstatus = ioread32(hcr_base + HSTATUS);
 
 	sata_fsl_scr_read(&ap->link, SCR_ERROR, &SError);
 
+	/* Read command completed register */
+	done_mask = ioread32(hcr_base + CC);
+
+	/* Workaround for data length mismatch errata */
+	if (unlikely(hstatus & INT_ON_DATA_LENGTH_MISMATCH)) {
+		for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
+			qc = ata_qc_from_tag(ap, tag);
+			if (qc && ata_is_atapi(qc->tf.protocol)) {
+				u32 hcontrol;
+				/* Set HControl[27] to clear error registers */
+				hcontrol = ioread32(hcr_base + HCONTROL);
+				iowrite32(hcontrol | CLEAR_ERROR,
+						hcr_base + HCONTROL);
+
+				/* Clear HControl[27] */
+				iowrite32(hcontrol & ~CLEAR_ERROR,
+						hcr_base + HCONTROL);
+
+				/* Clear SError[E] bit */
+				sata_fsl_scr_write(&ap->link, SCR_ERROR,
+						SError);
+
+				/* Ignore fatal error and device error */
+				status_mask &= ~(INT_ON_SINGL_DEVICE_ERR
+						| INT_ON_FATAL_ERR);
+				break;
+			}
+		}
+	}
+
 	if (unlikely(SError & 0xFFFF0000)) {
 		DPRINTK("serror @host_intr : 0x%x\n", SError);
 		sata_fsl_error_intr(ap);
 	}
 
-	if (unlikely(hstatus & INT_ON_ERROR)) {
+	if (unlikely(hstatus & status_mask)) {
 		DPRINTK("error interrupt!!\n");
 		sata_fsl_error_intr(ap);
 		return;
 	}
 
-	/* Read command completed register */
-	done_mask = ioread32(hcr_base + CC);
-
 	VPRINTK("Status of all queues :\n");
 	VPRINTK("done_mask/CC = 0x%x, CA = 0x%x, CE=0x%x,CQ=0x%x,apqa=0x%x\n",
 		done_mask,
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
new file mode 100644
index 00000000000..0d7c4c2cd26
--- /dev/null
+++ b/drivers/ata/sata_highbank.c
@@ -0,0 +1,450 @@
+/*
+ * Calxeda Highbank AHCI SATA platform driver
+ * Copyright 2012 Calxeda, Inc.
+ *
+ * based on the AHCI SATA platform driver by Jeff Garzik and Anton Vorontsov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/kernel.h>
+#include <linux/gfp.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/libata.h>
+#include <linux/ahci_platform.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/export.h>
+#include "ahci.h"
+
+#define CPHY_MAP(dev, addr) ((((dev) & 0x1f) << 7) | (((addr) >> 9) & 0x7f))
+#define CPHY_ADDR(addr) (((addr) & 0x1ff) << 2)
+#define SERDES_CR_CTL			0x80a0
+#define SERDES_CR_ADDR			0x80a1
+#define SERDES_CR_DATA			0x80a2
+#define CR_BUSY				0x0001
+#define CR_START			0x0001
+#define CR_WR_RDN			0x0002
+#define CPHY_RX_INPUT_STS		0x2002
+#define CPHY_SATA_OVERRIDE	 	0x4000
+#define CPHY_OVERRIDE			0x2005
+#define SPHY_LANE			0x100
+#define SPHY_HALF_RATE			0x0001
+#define CPHY_SATA_DPLL_MODE		0x0700
+#define CPHY_SATA_DPLL_SHIFT		8
+#define CPHY_SATA_DPLL_RESET		(1 << 11)
+#define CPHY_PHY_COUNT			6
+#define CPHY_LANE_COUNT			4
+#define CPHY_PORT_COUNT			(CPHY_PHY_COUNT * CPHY_LANE_COUNT)
+
+static DEFINE_SPINLOCK(cphy_lock);
+/* Each of the 6 phys can have up to 4 sata ports attached to i. Map 0-based
+ * sata ports to their phys and then to their lanes within the phys
+ */
+struct phy_lane_info {
+	void __iomem *phy_base;
+	u8 lane_mapping;
+	u8 phy_devs;
+};
+static struct phy_lane_info port_data[CPHY_PORT_COUNT];
+
+static u32 __combo_phy_reg_read(u8 sata_port, u32 addr)
+{
+	u32 data;
+	u8 dev = port_data[sata_port].phy_devs;
+	spin_lock(&cphy_lock);
+	writel(CPHY_MAP(dev, addr), port_data[sata_port].phy_base + 0x800);
+	data = readl(port_data[sata_port].phy_base + CPHY_ADDR(addr));
+	spin_unlock(&cphy_lock);
+	return data;
+}
+
+static void __combo_phy_reg_write(u8 sata_port, u32 addr, u32 data)
+{
+	u8 dev = port_data[sata_port].phy_devs;
+	spin_lock(&cphy_lock);
+	writel(CPHY_MAP(dev, addr), port_data[sata_port].phy_base + 0x800);
+	writel(data, port_data[sata_port].phy_base + CPHY_ADDR(addr));
+	spin_unlock(&cphy_lock);
+}
+
+static void combo_phy_wait_for_ready(u8 sata_port)
+{
+	while (__combo_phy_reg_read(sata_port, SERDES_CR_CTL) & CR_BUSY)
+		udelay(5);
+}
+
+static u32 combo_phy_read(u8 sata_port, u32 addr)
+{
+	combo_phy_wait_for_ready(sata_port);
+	__combo_phy_reg_write(sata_port, SERDES_CR_ADDR, addr);
+	__combo_phy_reg_write(sata_port, SERDES_CR_CTL, CR_START);
+	combo_phy_wait_for_ready(sata_port);
+	return __combo_phy_reg_read(sata_port, SERDES_CR_DATA);
+}
+
+static void combo_phy_write(u8 sata_port, u32 addr, u32 data)
+{
+	combo_phy_wait_for_ready(sata_port);
+	__combo_phy_reg_write(sata_port, SERDES_CR_ADDR, addr);
+	__combo_phy_reg_write(sata_port, SERDES_CR_DATA, data);
+	__combo_phy_reg_write(sata_port, SERDES_CR_CTL, CR_WR_RDN | CR_START);
+}
+
+static void highbank_cphy_disable_overrides(u8 sata_port)
+{
+	u8 lane = port_data[sata_port].lane_mapping;
+	u32 tmp;
+	if (unlikely(port_data[sata_port].phy_base == NULL))
+		return;
+	tmp = combo_phy_read(sata_port, CPHY_RX_INPUT_STS + lane * SPHY_LANE);
+	tmp &= ~CPHY_SATA_OVERRIDE;
+	combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp);
+}
+
+static void cphy_override_rx_mode(u8 sata_port, u32 val)
+{
+	u8 lane = port_data[sata_port].lane_mapping;
+	u32 tmp;
+	tmp = combo_phy_read(sata_port, CPHY_RX_INPUT_STS + lane * SPHY_LANE);
+	tmp &= ~CPHY_SATA_OVERRIDE;
+	combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp);
+
+	tmp |= CPHY_SATA_OVERRIDE;
+	combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp);
+
+	tmp &= ~CPHY_SATA_DPLL_MODE;
+	tmp |= val << CPHY_SATA_DPLL_SHIFT;
+	combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp);
+
+	tmp |= CPHY_SATA_DPLL_RESET;
+	combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp);
+
+	tmp &= ~CPHY_SATA_DPLL_RESET;
+	combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp);
+
+	msleep(15);
+}
+
+static void highbank_cphy_override_lane(u8 sata_port)
+{
+	u8 lane = port_data[sata_port].lane_mapping;
+	u32 tmp, k = 0;
+
+	if (unlikely(port_data[sata_port].phy_base == NULL))
+		return;
+	do {
+		tmp = combo_phy_read(sata_port, CPHY_RX_INPUT_STS +
+						lane * SPHY_LANE);
+	} while ((tmp & SPHY_HALF_RATE) && (k++ < 1000));
+	cphy_override_rx_mode(sata_port, 3);
+}
+
+static int highbank_initialize_phys(struct device *dev, void __iomem *addr)
+{
+	struct device_node *sata_node = dev->of_node;
+	int phy_count = 0, phy, port = 0;
+	void __iomem *cphy_base[CPHY_PHY_COUNT];
+	struct device_node *phy_nodes[CPHY_PHY_COUNT];
+	memset(port_data, 0, sizeof(struct phy_lane_info) * CPHY_PORT_COUNT);
+	memset(phy_nodes, 0, sizeof(struct device_node*) * CPHY_PHY_COUNT);
+
+	do {
+		u32 tmp;
+		struct of_phandle_args phy_data;
+		if (of_parse_phandle_with_args(sata_node,
+				"calxeda,port-phys", "#phy-cells",
+				port, &phy_data))
+			break;
+		for (phy = 0; phy < phy_count; phy++) {
+			if (phy_nodes[phy] == phy_data.np)
+				break;
+		}
+		if (phy_nodes[phy] == NULL) {
+			phy_nodes[phy] = phy_data.np;
+			cphy_base[phy] = of_iomap(phy_nodes[phy], 0);
+			if (cphy_base[phy] == NULL) {
+				return 0;
+			}
+			phy_count += 1;
+		}
+		port_data[port].lane_mapping = phy_data.args[0];
+		of_property_read_u32(phy_nodes[phy], "phydev", &tmp);
+		port_data[port].phy_devs = tmp;
+		port_data[port].phy_base = cphy_base[phy];
+		of_node_put(phy_data.np);
+		port += 1;
+	} while (port < CPHY_PORT_COUNT);
+	return 0;
+}
+
+static int ahci_highbank_hardreset(struct ata_link *link, unsigned int *class,
+				unsigned long deadline)
+{
+	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
+	struct ata_port *ap = link->ap;
+	struct ahci_port_priv *pp = ap->private_data;
+	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
+	struct ata_taskfile tf;
+	bool online;
+	u32 sstatus;
+	int rc;
+	int retry = 10;
+
+	ahci_stop_engine(ap);
+
+	/* clear D2H reception area to properly wait for D2H FIS */
+	ata_tf_init(link->device, &tf);
+	tf.command = 0x80;
+	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
+
+	do {
+		highbank_cphy_disable_overrides(link->ap->port_no);
+		rc = sata_link_hardreset(link, timing, deadline, &online, NULL);
+		highbank_cphy_override_lane(link->ap->port_no);
+
+		/* If the status is 1, we are connected, but the link did not
+		 * come up. So retry resetting the link again.
+		 */
+		if (sata_scr_read(link, SCR_STATUS, &sstatus))
+			break;
+		if (!(sstatus & 0x3))
+			break;
+	} while (!online && retry--);
+
+	ahci_start_engine(ap);
+
+	if (online)
+		*class = ahci_dev_classify(ap);
+
+	return rc;
+}
+
+static struct ata_port_operations ahci_highbank_ops = {
+	.inherits		= &ahci_ops,
+	.hardreset		= ahci_highbank_hardreset,
+};
+
+static const struct ata_port_info ahci_highbank_port_info = {
+	.flags          = AHCI_FLAG_COMMON,
+	.pio_mask       = ATA_PIO4,
+	.udma_mask      = ATA_UDMA6,
+	.port_ops       = &ahci_highbank_ops,
+};
+
+static struct scsi_host_template ahci_highbank_platform_sht = {
+	AHCI_SHT("highbank-ahci"),
+};
+
+static const struct of_device_id ahci_of_match[] = {
+	{ .compatible = "calxeda,hb-ahci" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, ahci_of_match);
+
+static int __init ahci_highbank_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ahci_host_priv *hpriv;
+	struct ata_host *host;
+	struct resource *mem;
+	int irq;
+	int n_ports;
+	int i;
+	int rc;
+	struct ata_port_info pi = ahci_highbank_port_info;
+	const struct ata_port_info *ppi[] = { &pi, NULL };
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem) {
+		dev_err(dev, "no mmio space\n");
+		return -EINVAL;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq <= 0) {
+		dev_err(dev, "no irq\n");
+		return -EINVAL;
+	}
+
+	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!hpriv) {
+		dev_err(dev, "can't alloc ahci_host_priv\n");
+		return -ENOMEM;
+	}
+
+	hpriv->flags |= (unsigned long)pi.private_data;
+
+	hpriv->mmio = devm_ioremap(dev, mem->start, resource_size(mem));
+	if (!hpriv->mmio) {
+		dev_err(dev, "can't map %pR\n", mem);
+		return -ENOMEM;
+	}
+
+	rc = highbank_initialize_phys(dev, hpriv->mmio);
+	if (rc)
+		return rc;
+
+
+	ahci_save_initial_config(dev, hpriv, 0, 0);
+
+	/* prepare host */
+	if (hpriv->cap & HOST_CAP_NCQ)
+		pi.flags |= ATA_FLAG_NCQ;
+
+	if (hpriv->cap & HOST_CAP_PMP)
+		pi.flags |= ATA_FLAG_PMP;
+
+	ahci_set_em_messages(hpriv, &pi);
+
+	/* CAP.NP sometimes indicate the index of the last enabled
+	 * port, at other times, that of the last possible port, so
+	 * determining the maximum port number requires looking at
+	 * both CAP.NP and port_map.
+	 */
+	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
+
+	host = ata_host_alloc_pinfo(dev, ppi, n_ports);
+	if (!host) {
+		rc = -ENOMEM;
+		goto err0;
+	}
+
+	host->private_data = hpriv;
+
+	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
+		host->flags |= ATA_HOST_PARALLEL_SCAN;
+
+	if (pi.flags & ATA_FLAG_EM)
+		ahci_reset_em(host);
+
+	for (i = 0; i < host->n_ports; i++) {
+		struct ata_port *ap = host->ports[i];
+
+		ata_port_desc(ap, "mmio %pR", mem);
+		ata_port_desc(ap, "port 0x%x", 0x100 + ap->port_no * 0x80);
+
+		/* set enclosure management message type */
+		if (ap->flags & ATA_FLAG_EM)
+			ap->em_message_type = hpriv->em_msg_type;
+
+		/* disabled/not-implemented port */
+		if (!(hpriv->port_map & (1 << i)))
+			ap->ops = &ata_dummy_port_ops;
+	}
+
+	rc = ahci_reset_controller(host);
+	if (rc)
+		goto err0;
+
+	ahci_init_controller(host);
+	ahci_print_info(host, "platform");
+
+	rc = ata_host_activate(host, irq, ahci_interrupt, 0,
+					&ahci_highbank_platform_sht);
+	if (rc)
+		goto err0;
+
+	return 0;
+err0:
+	return rc;
+}
+
+static int __devexit ahci_highbank_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ata_host *host = dev_get_drvdata(dev);
+
+	ata_host_detach(host);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int ahci_highbank_suspend(struct device *dev)
+{
+	struct ata_host *host = dev_get_drvdata(dev);
+	struct ahci_host_priv *hpriv = host->private_data;
+	void __iomem *mmio = hpriv->mmio;
+	u32 ctl;
+	int rc;
+
+	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
+		dev_err(dev, "firmware update required for suspend/resume\n");
+		return -EIO;
+	}
+
+	/*
+	 * AHCI spec rev1.1 section 8.3.3:
+	 * Software must disable interrupts prior to requesting a
+	 * transition of the HBA to D3 state.
+	 */
+	ctl = readl(mmio + HOST_CTL);
+	ctl &= ~HOST_IRQ_EN;
+	writel(ctl, mmio + HOST_CTL);
+	readl(mmio + HOST_CTL); /* flush */
+
+	rc = ata_host_suspend(host, PMSG_SUSPEND);
+	if (rc)
+		return rc;
+
+	return 0;
+}
+
+static int ahci_highbank_resume(struct device *dev)
+{
+	struct ata_host *host = dev_get_drvdata(dev);
+	int rc;
+
+	if (dev->power.power_state.event == PM_EVENT_SUSPEND) {
+		rc = ahci_reset_controller(host);
+		if (rc)
+			return rc;
+
+		ahci_init_controller(host);
+	}
+
+	ata_host_resume(host);
+
+	return 0;
+}
+#endif
+
+SIMPLE_DEV_PM_OPS(ahci_highbank_pm_ops,
+		  ahci_highbank_suspend, ahci_highbank_resume);
+
+static struct platform_driver ahci_highbank_driver = {
+        .remove = __devexit_p(ahci_highbank_remove),
+        .driver = {
+                .name = "highbank-ahci",
+                .owner = THIS_MODULE,
+                .of_match_table = ahci_of_match,
+                .pm = &ahci_highbank_pm_ops,
+        },
+	.probe = ahci_highbank_probe,
+};
+
+module_platform_driver(ahci_highbank_driver);
+
+MODULE_DESCRIPTION("Calxeda Highbank AHCI SATA platform driver");
+MODULE_AUTHOR("Mark Langsdorf <mark.langsdorf@calxeda.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("sata:highbank");
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 311be18d3f0..68f4fb54d62 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -79,8 +79,8 @@
  * module options
  */
 
-static int msi;
 #ifdef CONFIG_PCI
+static int msi;
 module_param(msi, int, S_IRUGO);
 MODULE_PARM_DESC(msi, "Enable use of PCI MSI (0=off, 1=on)");
 #endif
@@ -652,12 +652,13 @@ static u8 mv_sff_check_status(struct ata_port *ap);
  * because we have to allow room for worst case splitting of
  * PRDs for 64K boundaries in mv_fill_sg().
  */
+#ifdef CONFIG_PCI
 static struct scsi_host_template mv5_sht = {
 	ATA_BASE_SHT(DRV_NAME),
 	.sg_tablesize		= MV_MAX_SG_CT / 2,
 	.dma_boundary		= MV_DMA_BOUNDARY,
 };
-
+#endif
 static struct scsi_host_template mv6_sht = {
 	ATA_NCQ_SHT(DRV_NAME),
 	.can_queue		= MV_MAX_Q_DEPTH - 1,
@@ -1252,7 +1253,7 @@ static void mv_dump_mem(void __iomem *start, unsigned bytes)
 	}
 }
 #endif
-
+#if defined(ATA_DEBUG) || defined(CONFIG_PCI)
 static void mv_dump_pci_cfg(struct pci_dev *pdev, unsigned bytes)
 {
 #ifdef ATA_DEBUG
@@ -1269,6 +1270,7 @@ static void mv_dump_pci_cfg(struct pci_dev *pdev, unsigned bytes)
 	}
 #endif
 }
+#endif
 static void mv_dump_all_regs(void __iomem *mmio_base, int port,
 			     struct pci_dev *pdev)
 {
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index d4386019af5..96cce6d5319 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -2362,7 +2362,7 @@ static int __devinit ia_init(struct atm_dev *dev)
 	{  
 		printk(DEV_LABEL " (itf %d): can't set up page mapping\n",  
 			    dev->number);  
-		return error;  
+		return -ENOMEM;
 	}  
 	IF_INIT(printk(DEV_LABEL " (itf %d): rev.%d,base=%p,irq=%d\n",  
 			dev->number, iadev->pci->revision, base, iadev->irq);)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index f338037a4f3..abea76c36a4 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -184,6 +184,17 @@ static void device_release(struct kobject *kobj)
 	struct device *dev = kobj_to_dev(kobj);
 	struct device_private *p = dev->p;
 
+	/*
+	 * Some platform devices are driven without driver attached
+	 * and managed resources may have been acquired.  Make sure
+	 * all resources are released.
+	 *
+	 * Drivers still can add resources into device after device
+	 * is deleted but alive, so release devres here to avoid
+	 * possible memory leak.
+	 */
+	devres_release_all(dev);
+
 	if (dev->release)
 		dev->release(dev);
 	else if (dev->type && dev->type->release)
@@ -1196,13 +1207,6 @@ void device_del(struct device *dev)
 	bus_remove_device(dev);
 	driver_deferred_probe_del(dev);
 
-	/*
-	 * Some platform devices are driven without driver attached
-	 * and managed resources may have been acquired.  Make sure
-	 * all resources are released.
-	 */
-	devres_release_all(dev);
-
 	/* Notify the platform of the removal, in case they
 	 * need to do anything...
 	 */
@@ -1861,25 +1865,20 @@ void device_shutdown(void)
  */
 
 #ifdef CONFIG_PRINTK
-int __dev_printk(const char *level, const struct device *dev,
-		 struct va_format *vaf)
+static int
+create_syslog_header(const struct device *dev, char *hdr, size_t hdrlen)
 {
-	char dict[128];
-	size_t dictlen = 0;
 	const char *subsys;
-
-	if (!dev)
-		return printk("%s(NULL device *): %pV", level, vaf);
+	size_t pos = 0;
 
 	if (dev->class)
 		subsys = dev->class->name;
 	else if (dev->bus)
 		subsys = dev->bus->name;
 	else
-		goto skip;
+		return 0;
 
-	dictlen += snprintf(dict + dictlen, sizeof(dict) - dictlen,
-			    "SUBSYSTEM=%s", subsys);
+	pos += snprintf(hdr + pos, hdrlen - pos, "SUBSYSTEM=%s", subsys);
 
 	/*
 	 * Add device identifier DEVICE=:
@@ -1895,28 +1894,63 @@ int __dev_printk(const char *level, const struct device *dev,
 			c = 'b';
 		else
 			c = 'c';
-		dictlen++;
-		dictlen += snprintf(dict + dictlen, sizeof(dict) - dictlen,
-				   "DEVICE=%c%u:%u",
-				   c, MAJOR(dev->devt), MINOR(dev->devt));
+		pos++;
+		pos += snprintf(hdr + pos, hdrlen - pos,
+				"DEVICE=%c%u:%u",
+				c, MAJOR(dev->devt), MINOR(dev->devt));
 	} else if (strcmp(subsys, "net") == 0) {
 		struct net_device *net = to_net_dev(dev);
 
-		dictlen++;
-		dictlen += snprintf(dict + dictlen, sizeof(dict) - dictlen,
-				    "DEVICE=n%u", net->ifindex);
+		pos++;
+		pos += snprintf(hdr + pos, hdrlen - pos,
+				"DEVICE=n%u", net->ifindex);
 	} else {
-		dictlen++;
-		dictlen += snprintf(dict + dictlen, sizeof(dict) - dictlen,
-				    "DEVICE=+%s:%s", subsys, dev_name(dev));
+		pos++;
+		pos += snprintf(hdr + pos, hdrlen - pos,
+				"DEVICE=+%s:%s", subsys, dev_name(dev));
 	}
-skip:
-	return printk_emit(0, level[1] - '0',
-			   dictlen ? dict : NULL, dictlen,
-			   "%s %s: %pV",
-			   dev_driver_string(dev), dev_name(dev), vaf);
+
+	return pos;
+}
+EXPORT_SYMBOL(create_syslog_header);
+
+int dev_vprintk_emit(int level, const struct device *dev,
+		     const char *fmt, va_list args)
+{
+	char hdr[128];
+	size_t hdrlen;
+
+	hdrlen = create_syslog_header(dev, hdr, sizeof(hdr));
+
+	return vprintk_emit(0, level, hdrlen ? hdr : NULL, hdrlen, fmt, args);
+}
+EXPORT_SYMBOL(dev_vprintk_emit);
+
+int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...)
+{
+	va_list args;
+	int r;
+
+	va_start(args, fmt);
+
+	r = dev_vprintk_emit(level, dev, fmt, args);
+
+	va_end(args);
+
+	return r;
+}
+EXPORT_SYMBOL(dev_printk_emit);
+
+static int __dev_printk(const char *level, const struct device *dev,
+			struct va_format *vaf)
+{
+	if (!dev)
+		return printk("%s(NULL device *): %pV", level, vaf);
+
+	return dev_printk_emit(level[1] - '0', dev,
+			       "%s %s: %pV",
+			       dev_driver_string(dev), dev_name(dev), vaf);
 }
-EXPORT_SYMBOL(__dev_printk);
 
 int dev_printk(const char *level, const struct device *dev,
 	       const char *fmt, ...)
@@ -1931,6 +1965,7 @@ int dev_printk(const char *level, const struct device *dev,
 	vaf.va = &args;
 
 	r = __dev_printk(level, dev, &vaf);
+
 	va_end(args);
 
 	return r;
@@ -1950,6 +1985,7 @@ int func(const struct device *dev, const char *fmt, ...)	\
 	vaf.va = &args;						\
 								\
 	r = __dev_printk(kern_level, dev, &vaf);		\
+								\
 	va_end(args);						\
 								\
 	return r;						\
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 2360adb7a58..8731979d668 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -144,6 +144,48 @@ EXPORT_SYMBOL_GPL(devres_alloc);
 #endif
 
 /**
+ * devres_for_each_res - Resource iterator
+ * @dev: Device to iterate resource from
+ * @release: Look for resources associated with this release function
+ * @match: Match function (optional)
+ * @match_data: Data for the match function
+ * @fn: Function to be called for each matched resource.
+ * @data: Data for @fn, the 3rd parameter of @fn
+ *
+ * Call @fn for each devres of @dev which is associated with @release
+ * and for which @match returns 1.
+ *
+ * RETURNS:
+ * 	void
+ */
+void devres_for_each_res(struct device *dev, dr_release_t release,
+			dr_match_t match, void *match_data,
+			void (*fn)(struct device *, void *, void *),
+			void *data)
+{
+	struct devres_node *node;
+	struct devres_node *tmp;
+	unsigned long flags;
+
+	if (!fn)
+		return;
+
+	spin_lock_irqsave(&dev->devres_lock, flags);
+	list_for_each_entry_safe_reverse(node, tmp,
+			&dev->devres_head, entry) {
+		struct devres *dr = container_of(node, struct devres, node);
+
+		if (node->release != release)
+			continue;
+		if (match && !match(dev, dr->data, match_data))
+			continue;
+		fn(dev, dr->data, data);
+	}
+	spin_unlock_irqrestore(&dev->devres_lock, flags);
+}
+EXPORT_SYMBOL_GPL(devres_for_each_res);
+
+/**
  * devres_free - Free device resource data
  * @res: Pointer to devres data to free
  *
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index deb4a456cf8..147d1a4dd26 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -309,8 +309,8 @@ static int handle_remove(const char *nodename, struct device *dev)
 			 * before unlinking this node, reset permissions
 			 * of possible references like hardlinks
 			 */
-			newattrs.ia_uid = 0;
-			newattrs.ia_gid = 0;
+			newattrs.ia_uid = GLOBAL_ROOT_UID;
+			newattrs.ia_gid = GLOBAL_ROOT_GID;
 			newattrs.ia_mode = stat.mode & ~0777;
 			newattrs.ia_valid =
 				ATTR_UID|ATTR_GID|ATTR_MODE;
diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index c30f3e1d0ef..460e22dee36 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -460,8 +460,7 @@ int dma_buf_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma,
 	if (vma->vm_file)
 		fput(vma->vm_file);
 
-	vma->vm_file = dmabuf->file;
-	get_file(vma->vm_file);
+	vma->vm_file = get_file(dmabuf->file);
 
 	vma->vm_pgoff = pgoff;
 
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 78efb0306a4..9a1469474f5 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -250,7 +250,7 @@ int __init dma_declare_contiguous(struct device *dev, unsigned long size,
 		return -EINVAL;
 
 	/* Sanitise input arguments */
-	alignment = PAGE_SIZE << max(MAX_ORDER, pageblock_order);
+	alignment = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);
 	base = ALIGN(base, alignment);
 	size = ALIGN(size, alignment);
 	limit &= ~(alignment - 1);
@@ -315,6 +315,7 @@ struct page *dma_alloc_from_contiguous(struct device *dev, int count,
 {
 	unsigned long mask, pfn, pageno, start = 0;
 	struct cma *cma = dev_get_cma_area(dev);
+	struct page *page = NULL;
 	int ret;
 
 	if (!cma || !cma->count)
@@ -336,18 +337,17 @@ struct page *dma_alloc_from_contiguous(struct device *dev, int count,
 	for (;;) {
 		pageno = bitmap_find_next_zero_area(cma->bitmap, cma->count,
 						    start, count, mask);
-		if (pageno >= cma->count) {
-			ret = -ENOMEM;
-			goto error;
-		}
+		if (pageno >= cma->count)
+			break;
 
 		pfn = cma->base_pfn + pageno;
 		ret = alloc_contig_range(pfn, pfn + count, MIGRATE_CMA);
 		if (ret == 0) {
 			bitmap_set(cma->bitmap, pageno, count);
+			page = pfn_to_page(pfn);
 			break;
 		} else if (ret != -EBUSY) {
-			goto error;
+			break;
 		}
 		pr_debug("%s(): memory range at %p is busy, retrying\n",
 			 __func__, pfn_to_page(pfn));
@@ -356,12 +356,8 @@ struct page *dma_alloc_from_contiguous(struct device *dev, int count,
 	}
 
 	mutex_unlock(&cma_mutex);
-
-	pr_debug("%s(): returned %p\n", __func__, pfn_to_page(pfn));
-	return pfn_to_page(pfn);
-error:
-	mutex_unlock(&cma_mutex);
-	return NULL;
+	pr_debug("%s(): returned %p\n", __func__, page);
+	return page;
 }
 
 /**
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 803cfc1597a..6e210802c37 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -21,6 +21,13 @@
 #include <linux/firmware.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/async.h>
+#include <linux/pm.h>
+#include <linux/suspend.h>
+#include <linux/syscore_ops.h>
+
+#include "base.h"
 
 MODULE_AUTHOR("Manuel Estrada Sainz");
 MODULE_DESCRIPTION("Multi purpose firmware loading support");
@@ -85,23 +92,168 @@ static inline long firmware_loading_timeout(void)
 	return loading_timeout > 0 ? loading_timeout * HZ : MAX_SCHEDULE_TIMEOUT;
 }
 
-/* fw_lock could be moved to 'struct firmware_priv' but since it is just
- * guarding for corner cases a global lock should be OK */
-static DEFINE_MUTEX(fw_lock);
+struct firmware_cache {
+	/* firmware_buf instance will be added into the below list */
+	spinlock_t lock;
+	struct list_head head;
+	int state;
+
+#ifdef CONFIG_PM_SLEEP
+	/*
+	 * Names of firmware images which have been cached successfully
+	 * will be added into the below list so that device uncache
+	 * helper can trace which firmware images have been cached
+	 * before.
+	 */
+	spinlock_t name_lock;
+	struct list_head fw_names;
+
+	wait_queue_head_t wait_queue;
+	int cnt;
+	struct delayed_work work;
+
+	struct notifier_block   pm_notify;
+#endif
+};
 
-struct firmware_priv {
+struct firmware_buf {
+	struct kref ref;
+	struct list_head list;
 	struct completion completion;
-	struct firmware *fw;
+	struct firmware_cache *fwc;
 	unsigned long status;
+	void *data;
+	size_t size;
 	struct page **pages;
 	int nr_pages;
 	int page_array_size;
+	char fw_id[];
+};
+
+struct fw_cache_entry {
+	struct list_head list;
+	char name[];
+};
+
+struct firmware_priv {
 	struct timer_list timeout;
-	struct device dev;
 	bool nowait;
-	char fw_id[];
+	struct device dev;
+	struct firmware_buf *buf;
+	struct firmware *fw;
+};
+
+struct fw_name_devm {
+	unsigned long magic;
+	char name[];
 };
 
+#define to_fwbuf(d) container_of(d, struct firmware_buf, ref)
+
+#define	FW_LOADER_NO_CACHE	0
+#define	FW_LOADER_START_CACHE	1
+
+static int fw_cache_piggyback_on_request(const char *name);
+
+/* fw_lock could be moved to 'struct firmware_priv' but since it is just
+ * guarding for corner cases a global lock should be OK */
+static DEFINE_MUTEX(fw_lock);
+
+static struct firmware_cache fw_cache;
+
+static struct firmware_buf *__allocate_fw_buf(const char *fw_name,
+					      struct firmware_cache *fwc)
+{
+	struct firmware_buf *buf;
+
+	buf = kzalloc(sizeof(*buf) + strlen(fw_name) + 1 , GFP_ATOMIC);
+
+	if (!buf)
+		return buf;
+
+	kref_init(&buf->ref);
+	strcpy(buf->fw_id, fw_name);
+	buf->fwc = fwc;
+	init_completion(&buf->completion);
+
+	pr_debug("%s: fw-%s buf=%p\n", __func__, fw_name, buf);
+
+	return buf;
+}
+
+static struct firmware_buf *__fw_lookup_buf(const char *fw_name)
+{
+	struct firmware_buf *tmp;
+	struct firmware_cache *fwc = &fw_cache;
+
+	list_for_each_entry(tmp, &fwc->head, list)
+		if (!strcmp(tmp->fw_id, fw_name))
+			return tmp;
+	return NULL;
+}
+
+static int fw_lookup_and_allocate_buf(const char *fw_name,
+				      struct firmware_cache *fwc,
+				      struct firmware_buf **buf)
+{
+	struct firmware_buf *tmp;
+
+	spin_lock(&fwc->lock);
+	tmp = __fw_lookup_buf(fw_name);
+	if (tmp) {
+		kref_get(&tmp->ref);
+		spin_unlock(&fwc->lock);
+		*buf = tmp;
+		return 1;
+	}
+	tmp = __allocate_fw_buf(fw_name, fwc);
+	if (tmp)
+		list_add(&tmp->list, &fwc->head);
+	spin_unlock(&fwc->lock);
+
+	*buf = tmp;
+
+	return tmp ? 0 : -ENOMEM;
+}
+
+static struct firmware_buf *fw_lookup_buf(const char *fw_name)
+{
+	struct firmware_buf *tmp;
+	struct firmware_cache *fwc = &fw_cache;
+
+	spin_lock(&fwc->lock);
+	tmp = __fw_lookup_buf(fw_name);
+	spin_unlock(&fwc->lock);
+
+	return tmp;
+}
+
+static void __fw_free_buf(struct kref *ref)
+{
+	struct firmware_buf *buf = to_fwbuf(ref);
+	struct firmware_cache *fwc = buf->fwc;
+	int i;
+
+	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
+		 __func__, buf->fw_id, buf, buf->data,
+		 (unsigned int)buf->size);
+
+	spin_lock(&fwc->lock);
+	list_del(&buf->list);
+	spin_unlock(&fwc->lock);
+
+	vunmap(buf->data);
+	for (i = 0; i < buf->nr_pages; i++)
+		__free_page(buf->pages[i]);
+	kfree(buf->pages);
+	kfree(buf);
+}
+
+static void fw_free_buf(struct firmware_buf *buf)
+{
+	kref_put(&buf->ref, __fw_free_buf);
+}
+
 static struct firmware_priv *to_firmware_priv(struct device *dev)
 {
 	return container_of(dev, struct firmware_priv, dev);
@@ -109,9 +261,10 @@ static struct firmware_priv *to_firmware_priv(struct device *dev)
 
 static void fw_load_abort(struct firmware_priv *fw_priv)
 {
-	set_bit(FW_STATUS_ABORT, &fw_priv->status);
-	wmb();
-	complete(&fw_priv->completion);
+	struct firmware_buf *buf = fw_priv->buf;
+
+	set_bit(FW_STATUS_ABORT, &buf->status);
+	complete_all(&buf->completion);
 }
 
 static ssize_t firmware_timeout_show(struct class *class,
@@ -154,11 +307,7 @@ static struct class_attribute firmware_class_attrs[] = {
 static void fw_dev_release(struct device *dev)
 {
 	struct firmware_priv *fw_priv = to_firmware_priv(dev);
-	int i;
 
-	for (i = 0; i < fw_priv->nr_pages; i++)
-		__free_page(fw_priv->pages[i]);
-	kfree(fw_priv->pages);
 	kfree(fw_priv);
 
 	module_put(THIS_MODULE);
@@ -168,7 +317,7 @@ static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct firmware_priv *fw_priv = to_firmware_priv(dev);
 
-	if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->fw_id))
+	if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->buf->fw_id))
 		return -ENOMEM;
 	if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout))
 		return -ENOMEM;
@@ -189,20 +338,16 @@ static ssize_t firmware_loading_show(struct device *dev,
 				     struct device_attribute *attr, char *buf)
 {
 	struct firmware_priv *fw_priv = to_firmware_priv(dev);
-	int loading = test_bit(FW_STATUS_LOADING, &fw_priv->status);
+	int loading = test_bit(FW_STATUS_LOADING, &fw_priv->buf->status);
 
 	return sprintf(buf, "%d\n", loading);
 }
 
+/* firmware holds the ownership of pages */
 static void firmware_free_data(const struct firmware *fw)
 {
-	int i;
-	vunmap(fw->data);
-	if (fw->pages) {
-		for (i = 0; i < PFN_UP(fw->size); i++)
-			__free_page(fw->pages[i]);
-		kfree(fw->pages);
-	}
+	WARN_ON(!fw->priv);
+	fw_free_buf(fw->priv);
 }
 
 /* Some architectures don't have PAGE_KERNEL_RO */
@@ -227,45 +372,33 @@ static ssize_t firmware_loading_store(struct device *dev,
 				      const char *buf, size_t count)
 {
 	struct firmware_priv *fw_priv = to_firmware_priv(dev);
+	struct firmware_buf *fw_buf = fw_priv->buf;
 	int loading = simple_strtol(buf, NULL, 10);
 	int i;
 
 	mutex_lock(&fw_lock);
 
-	if (!fw_priv->fw)
+	if (!fw_buf)
 		goto out;
 
 	switch (loading) {
 	case 1:
-		firmware_free_data(fw_priv->fw);
-		memset(fw_priv->fw, 0, sizeof(struct firmware));
-		/* If the pages are not owned by 'struct firmware' */
-		for (i = 0; i < fw_priv->nr_pages; i++)
-			__free_page(fw_priv->pages[i]);
-		kfree(fw_priv->pages);
-		fw_priv->pages = NULL;
-		fw_priv->page_array_size = 0;
-		fw_priv->nr_pages = 0;
-		set_bit(FW_STATUS_LOADING, &fw_priv->status);
+		/* discarding any previous partial load */
+		if (!test_bit(FW_STATUS_DONE, &fw_buf->status)) {
+			for (i = 0; i < fw_buf->nr_pages; i++)
+				__free_page(fw_buf->pages[i]);
+			kfree(fw_buf->pages);
+			fw_buf->pages = NULL;
+			fw_buf->page_array_size = 0;
+			fw_buf->nr_pages = 0;
+			set_bit(FW_STATUS_LOADING, &fw_buf->status);
+		}
 		break;
 	case 0:
-		if (test_bit(FW_STATUS_LOADING, &fw_priv->status)) {
-			vunmap(fw_priv->fw->data);
-			fw_priv->fw->data = vmap(fw_priv->pages,
-						 fw_priv->nr_pages,
-						 0, PAGE_KERNEL_RO);
-			if (!fw_priv->fw->data) {
-				dev_err(dev, "%s: vmap() failed\n", __func__);
-				goto err;
-			}
-			/* Pages are now owned by 'struct firmware' */
-			fw_priv->fw->pages = fw_priv->pages;
-			fw_priv->pages = NULL;
-
-			fw_priv->page_array_size = 0;
-			fw_priv->nr_pages = 0;
-			complete(&fw_priv->completion);
-			clear_bit(FW_STATUS_LOADING, &fw_priv->status);
+		if (test_bit(FW_STATUS_LOADING, &fw_buf->status)) {
+			set_bit(FW_STATUS_DONE, &fw_buf->status);
+			clear_bit(FW_STATUS_LOADING, &fw_buf->status);
+			complete_all(&fw_buf->completion);
 			break;
 		}
 		/* fallthrough */
@@ -273,7 +406,6 @@ static ssize_t firmware_loading_store(struct device *dev,
 		dev_err(dev, "%s: unexpected value (%d)\n", __func__, loading);
 		/* fallthrough */
 	case -1:
-	err:
 		fw_load_abort(fw_priv);
 		break;
 	}
@@ -290,21 +422,21 @@ static ssize_t firmware_data_read(struct file *filp, struct kobject *kobj,
 {
 	struct device *dev = kobj_to_dev(kobj);
 	struct firmware_priv *fw_priv = to_firmware_priv(dev);
-	struct firmware *fw;
+	struct firmware_buf *buf;
 	ssize_t ret_count;
 
 	mutex_lock(&fw_lock);
-	fw = fw_priv->fw;
-	if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) {
+	buf = fw_priv->buf;
+	if (!buf || test_bit(FW_STATUS_DONE, &buf->status)) {
 		ret_count = -ENODEV;
 		goto out;
 	}
-	if (offset > fw->size) {
+	if (offset > buf->size) {
 		ret_count = 0;
 		goto out;
 	}
-	if (count > fw->size - offset)
-		count = fw->size - offset;
+	if (count > buf->size - offset)
+		count = buf->size - offset;
 
 	ret_count = count;
 
@@ -314,11 +446,11 @@ static ssize_t firmware_data_read(struct file *filp, struct kobject *kobj,
 		int page_ofs = offset & (PAGE_SIZE-1);
 		int page_cnt = min_t(size_t, PAGE_SIZE - page_ofs, count);
 
-		page_data = kmap(fw_priv->pages[page_nr]);
+		page_data = kmap(buf->pages[page_nr]);
 
 		memcpy(buffer, page_data + page_ofs, page_cnt);
 
-		kunmap(fw_priv->pages[page_nr]);
+		kunmap(buf->pages[page_nr]);
 		buffer += page_cnt;
 		offset += page_cnt;
 		count -= page_cnt;
@@ -330,12 +462,13 @@ out:
 
 static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
 {
+	struct firmware_buf *buf = fw_priv->buf;
 	int pages_needed = ALIGN(min_size, PAGE_SIZE) >> PAGE_SHIFT;
 
 	/* If the array of pages is too small, grow it... */
-	if (fw_priv->page_array_size < pages_needed) {
+	if (buf->page_array_size < pages_needed) {
 		int new_array_size = max(pages_needed,
-					 fw_priv->page_array_size * 2);
+					 buf->page_array_size * 2);
 		struct page **new_pages;
 
 		new_pages = kmalloc(new_array_size * sizeof(void *),
@@ -344,24 +477,24 @@ static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
 			fw_load_abort(fw_priv);
 			return -ENOMEM;
 		}
-		memcpy(new_pages, fw_priv->pages,
-		       fw_priv->page_array_size * sizeof(void *));
-		memset(&new_pages[fw_priv->page_array_size], 0, sizeof(void *) *
-		       (new_array_size - fw_priv->page_array_size));
-		kfree(fw_priv->pages);
-		fw_priv->pages = new_pages;
-		fw_priv->page_array_size = new_array_size;
+		memcpy(new_pages, buf->pages,
+		       buf->page_array_size * sizeof(void *));
+		memset(&new_pages[buf->page_array_size], 0, sizeof(void *) *
+		       (new_array_size - buf->page_array_size));
+		kfree(buf->pages);
+		buf->pages = new_pages;
+		buf->page_array_size = new_array_size;
 	}
 
-	while (fw_priv->nr_pages < pages_needed) {
-		fw_priv->pages[fw_priv->nr_pages] =
+	while (buf->nr_pages < pages_needed) {
+		buf->pages[buf->nr_pages] =
 			alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
 
-		if (!fw_priv->pages[fw_priv->nr_pages]) {
+		if (!buf->pages[buf->nr_pages]) {
 			fw_load_abort(fw_priv);
 			return -ENOMEM;
 		}
-		fw_priv->nr_pages++;
+		buf->nr_pages++;
 	}
 	return 0;
 }
@@ -384,18 +517,19 @@ static ssize_t firmware_data_write(struct file *filp, struct kobject *kobj,
 {
 	struct device *dev = kobj_to_dev(kobj);
 	struct firmware_priv *fw_priv = to_firmware_priv(dev);
-	struct firmware *fw;
+	struct firmware_buf *buf;
 	ssize_t retval;
 
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 
 	mutex_lock(&fw_lock);
-	fw = fw_priv->fw;
-	if (!fw || test_bit(FW_STATUS_DONE, &fw_priv->status)) {
+	buf = fw_priv->buf;
+	if (!buf || test_bit(FW_STATUS_DONE, &buf->status)) {
 		retval = -ENODEV;
 		goto out;
 	}
+
 	retval = fw_realloc_buffer(fw_priv, offset + count);
 	if (retval)
 		goto out;
@@ -408,17 +542,17 @@ static ssize_t firmware_data_write(struct file *filp, struct kobject *kobj,
 		int page_ofs = offset & (PAGE_SIZE - 1);
 		int page_cnt = min_t(size_t, PAGE_SIZE - page_ofs, count);
 
-		page_data = kmap(fw_priv->pages[page_nr]);
+		page_data = kmap(buf->pages[page_nr]);
 
 		memcpy(page_data + page_ofs, buffer, page_cnt);
 
-		kunmap(fw_priv->pages[page_nr]);
+		kunmap(buf->pages[page_nr]);
 		buffer += page_cnt;
 		offset += page_cnt;
 		count -= page_cnt;
 	}
 
-	fw->size = max_t(size_t, offset, fw->size);
+	buf->size = max_t(size_t, offset, buf->size);
 out:
 	mutex_unlock(&fw_lock);
 	return retval;
@@ -445,35 +579,120 @@ fw_create_instance(struct firmware *firmware, const char *fw_name,
 	struct firmware_priv *fw_priv;
 	struct device *f_dev;
 
-	fw_priv = kzalloc(sizeof(*fw_priv) + strlen(fw_name) + 1 , GFP_KERNEL);
+	fw_priv = kzalloc(sizeof(*fw_priv), GFP_KERNEL);
 	if (!fw_priv) {
 		dev_err(device, "%s: kmalloc failed\n", __func__);
-		return ERR_PTR(-ENOMEM);
+		fw_priv = ERR_PTR(-ENOMEM);
+		goto exit;
 	}
 
-	fw_priv->fw = firmware;
 	fw_priv->nowait = nowait;
-	strcpy(fw_priv->fw_id, fw_name);
-	init_completion(&fw_priv->completion);
+	fw_priv->fw = firmware;
 	setup_timer(&fw_priv->timeout,
 		    firmware_class_timeout, (u_long) fw_priv);
 
 	f_dev = &fw_priv->dev;
 
 	device_initialize(f_dev);
-	dev_set_name(f_dev, "%s", dev_name(device));
+	dev_set_name(f_dev, "%s", fw_name);
 	f_dev->parent = device;
 	f_dev->class = &firmware_class;
-
+exit:
 	return fw_priv;
 }
 
+/* one pages buffer is mapped/unmapped only once */
+static int fw_map_pages_buf(struct firmware_buf *buf)
+{
+	buf->data = vmap(buf->pages, buf->nr_pages, 0, PAGE_KERNEL_RO);
+	if (!buf->data)
+		return -ENOMEM;
+	return 0;
+}
+
+/* store the pages buffer info firmware from buf */
+static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
+{
+	fw->priv = buf;
+	fw->pages = buf->pages;
+	fw->size = buf->size;
+	fw->data = buf->data;
+
+	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
+		 __func__, buf->fw_id, buf, buf->data,
+		 (unsigned int)buf->size);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static void fw_name_devm_release(struct device *dev, void *res)
+{
+	struct fw_name_devm *fwn = res;
+
+	if (fwn->magic == (unsigned long)&fw_cache)
+		pr_debug("%s: fw_name-%s devm-%p released\n",
+				__func__, fwn->name, res);
+}
+
+static int fw_devm_match(struct device *dev, void *res,
+		void *match_data)
+{
+	struct fw_name_devm *fwn = res;
+
+	return (fwn->magic == (unsigned long)&fw_cache) &&
+		!strcmp(fwn->name, match_data);
+}
+
+static struct fw_name_devm *fw_find_devm_name(struct device *dev,
+		const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	fwn = devres_find(dev, fw_name_devm_release,
+			  fw_devm_match, (void *)name);
+	return fwn;
+}
+
+/* add firmware name into devres list */
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	fwn = fw_find_devm_name(dev, name);
+	if (fwn)
+		return 1;
+
+	fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
+			   strlen(name) + 1, GFP_KERNEL);
+	if (!fwn)
+		return -ENOMEM;
+
+	fwn->magic = (unsigned long)&fw_cache;
+	strcpy(fwn->name, name);
+	devres_add(dev, fwn);
+
+	return 0;
+}
+#else
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	return 0;
+}
+#endif
+
+static void _request_firmware_cleanup(const struct firmware **firmware_p)
+{
+	release_firmware(*firmware_p);
+	*firmware_p = NULL;
+}
+
 static struct firmware_priv *
 _request_firmware_prepare(const struct firmware **firmware_p, const char *name,
 			  struct device *device, bool uevent, bool nowait)
 {
 	struct firmware *firmware;
-	struct firmware_priv *fw_priv;
+	struct firmware_priv *fw_priv = NULL;
+	struct firmware_buf *buf;
+	int ret;
 
 	if (!firmware_p)
 		return ERR_PTR(-EINVAL);
@@ -490,18 +709,46 @@ _request_firmware_prepare(const struct firmware **firmware_p, const char *name,
 		return NULL;
 	}
 
-	fw_priv = fw_create_instance(firmware, name, device, uevent, nowait);
-	if (IS_ERR(fw_priv)) {
-		release_firmware(firmware);
+	ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
+	if (!ret)
+		fw_priv = fw_create_instance(firmware, name, device,
+				uevent, nowait);
+
+	if (IS_ERR(fw_priv) || ret < 0) {
+		kfree(firmware);
 		*firmware_p = NULL;
+		return ERR_PTR(-ENOMEM);
+	} else if (fw_priv) {
+		fw_priv->buf = buf;
+
+		/*
+		 * bind with 'buf' now to avoid warning in failure path
+		 * of requesting firmware.
+		 */
+		firmware->priv = buf;
+		return fw_priv;
 	}
-	return fw_priv;
-}
 
-static void _request_firmware_cleanup(const struct firmware **firmware_p)
-{
-	release_firmware(*firmware_p);
-	*firmware_p = NULL;
+	/* share the cached buf, which is inprogessing or completed */
+ check_status:
+	mutex_lock(&fw_lock);
+	if (test_bit(FW_STATUS_ABORT, &buf->status)) {
+		fw_priv = ERR_PTR(-ENOENT);
+		firmware->priv = buf;
+		_request_firmware_cleanup(firmware_p);
+		goto exit;
+	} else if (test_bit(FW_STATUS_DONE, &buf->status)) {
+		fw_priv = NULL;
+		fw_set_page_data(buf, firmware);
+		goto exit;
+	}
+	mutex_unlock(&fw_lock);
+	wait_for_completion(&buf->completion);
+	goto check_status;
+
+exit:
+	mutex_unlock(&fw_lock);
+	return fw_priv;
 }
 
 static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
@@ -509,6 +756,8 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 {
 	int retval = 0;
 	struct device *f_dev = &fw_priv->dev;
+	struct firmware_buf *buf = fw_priv->buf;
+	struct firmware_cache *fwc = &fw_cache;
 
 	dev_set_uevent_suppress(f_dev, true);
 
@@ -535,7 +784,7 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 
 	if (uevent) {
 		dev_set_uevent_suppress(f_dev, false);
-		dev_dbg(f_dev, "firmware: requesting %s\n", fw_priv->fw_id);
+		dev_dbg(f_dev, "firmware: requesting %s\n", buf->fw_id);
 		if (timeout != MAX_SCHEDULE_TIMEOUT)
 			mod_timer(&fw_priv->timeout,
 				  round_jiffies_up(jiffies + timeout));
@@ -543,15 +792,40 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 		kobject_uevent(&fw_priv->dev.kobj, KOBJ_ADD);
 	}
 
-	wait_for_completion(&fw_priv->completion);
+	wait_for_completion(&buf->completion);
 
-	set_bit(FW_STATUS_DONE, &fw_priv->status);
 	del_timer_sync(&fw_priv->timeout);
 
 	mutex_lock(&fw_lock);
-	if (!fw_priv->fw->size || test_bit(FW_STATUS_ABORT, &fw_priv->status))
+	if (!buf->size || test_bit(FW_STATUS_ABORT, &buf->status))
 		retval = -ENOENT;
-	fw_priv->fw = NULL;
+
+	/*
+	 * add firmware name into devres list so that we can auto cache
+	 * and uncache firmware for device.
+	 *
+	 * f_dev->parent may has been deleted already, but the problem
+	 * should be fixed in devres or driver core.
+	 */
+	if (!retval && f_dev->parent)
+		fw_add_devm_name(f_dev->parent, buf->fw_id);
+
+	if (!retval)
+		retval = fw_map_pages_buf(buf);
+
+	/*
+	 * After caching firmware image is started, let it piggyback
+	 * on request firmware.
+	 */
+	if (!retval && fwc->state == FW_LOADER_START_CACHE) {
+		if (fw_cache_piggyback_on_request(buf->fw_id))
+			kref_get(&buf->ref);
+	}
+
+	/* pass the pages buffer to driver at the last minute */
+	fw_set_page_data(buf, fw_priv->fw);
+
+	fw_priv->buf = NULL;
 	mutex_unlock(&fw_lock);
 
 	device_remove_file(f_dev, &dev_attr_loading);
@@ -578,6 +852,8 @@ err_put_dev:
  *      @name will be used as $FIRMWARE in the uevent environment and
  *      should be distinctive enough not to be confused with any other
  *      firmware image for this or any other device.
+ *
+ *	Caller must hold the reference count of @device.
  **/
 int
 request_firmware(const struct firmware **firmware_p, const char *name,
@@ -659,6 +935,7 @@ static void request_firmware_work_func(struct work_struct *work)
 
  out:
 	fw_work->cont(fw, fw_work->context);
+	put_device(fw_work->device);
 
 	module_put(fw_work->module);
 	kfree(fw_work);
@@ -677,9 +954,15 @@ static void request_firmware_work_func(struct work_struct *work)
  * @cont: function will be called asynchronously when the firmware
  *	request is over.
  *
- *	Asynchronous variant of request_firmware() for user contexts where
- *	it is not possible to sleep for long time. It can't be called
- *	in atomic contexts.
+ *	Caller must hold the reference count of @device.
+ *
+ *	Asynchronous variant of request_firmware() for user contexts:
+ *		- sleep for as small periods as possible since it may
+ *		increase kernel boot time of built-in device drivers
+ *		requesting firmware in their ->probe() methods, if
+ *		@gfp is GFP_KERNEL.
+ *
+ *		- can't sleep at all if @gfp is GFP_ATOMIC.
  **/
 int
 request_firmware_nowait(
@@ -705,18 +988,363 @@ request_firmware_nowait(
 		return -EFAULT;
 	}
 
+	get_device(fw_work->device);
 	INIT_WORK(&fw_work->work, request_firmware_work_func);
 	schedule_work(&fw_work->work);
 	return 0;
 }
 
+/**
+ * cache_firmware - cache one firmware image in kernel memory space
+ * @fw_name: the firmware image name
+ *
+ * Cache firmware in kernel memory so that drivers can use it when
+ * system isn't ready for them to request firmware image from userspace.
+ * Once it returns successfully, driver can use request_firmware or its
+ * nowait version to get the cached firmware without any interacting
+ * with userspace
+ *
+ * Return 0 if the firmware image has been cached successfully
+ * Return !0 otherwise
+ *
+ */
+int cache_firmware(const char *fw_name)
+{
+	int ret;
+	const struct firmware *fw;
+
+	pr_debug("%s: %s\n", __func__, fw_name);
+
+	ret = request_firmware(&fw, fw_name, NULL);
+	if (!ret)
+		kfree(fw);
+
+	pr_debug("%s: %s ret=%d\n", __func__, fw_name, ret);
+
+	return ret;
+}
+
+/**
+ * uncache_firmware - remove one cached firmware image
+ * @fw_name: the firmware image name
+ *
+ * Uncache one firmware image which has been cached successfully
+ * before.
+ *
+ * Return 0 if the firmware cache has been removed successfully
+ * Return !0 otherwise
+ *
+ */
+int uncache_firmware(const char *fw_name)
+{
+	struct firmware_buf *buf;
+	struct firmware fw;
+
+	pr_debug("%s: %s\n", __func__, fw_name);
+
+	if (fw_get_builtin_firmware(&fw, fw_name))
+		return 0;
+
+	buf = fw_lookup_buf(fw_name);
+	if (buf) {
+		fw_free_buf(buf);
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static struct fw_cache_entry *alloc_fw_cache_entry(const char *name)
+{
+	struct fw_cache_entry *fce;
+
+	fce = kzalloc(sizeof(*fce) + strlen(name) + 1, GFP_ATOMIC);
+	if (!fce)
+		goto exit;
+
+	strcpy(fce->name, name);
+exit:
+	return fce;
+}
+
+static int fw_cache_piggyback_on_request(const char *name)
+{
+	struct firmware_cache *fwc = &fw_cache;
+	struct fw_cache_entry *fce;
+	int ret = 0;
+
+	spin_lock(&fwc->name_lock);
+	list_for_each_entry(fce, &fwc->fw_names, list) {
+		if (!strcmp(fce->name, name))
+			goto found;
+	}
+
+	fce = alloc_fw_cache_entry(name);
+	if (fce) {
+		ret = 1;
+		list_add(&fce->list, &fwc->fw_names);
+		pr_debug("%s: fw: %s\n", __func__, name);
+	}
+found:
+	spin_unlock(&fwc->name_lock);
+	return ret;
+}
+
+static void free_fw_cache_entry(struct fw_cache_entry *fce)
+{
+	kfree(fce);
+}
+
+static void __async_dev_cache_fw_image(void *fw_entry,
+				       async_cookie_t cookie)
+{
+	struct fw_cache_entry *fce = fw_entry;
+	struct firmware_cache *fwc = &fw_cache;
+	int ret;
+
+	ret = cache_firmware(fce->name);
+	if (ret) {
+		spin_lock(&fwc->name_lock);
+		list_del(&fce->list);
+		spin_unlock(&fwc->name_lock);
+
+		free_fw_cache_entry(fce);
+	}
+
+	spin_lock(&fwc->name_lock);
+	fwc->cnt--;
+	spin_unlock(&fwc->name_lock);
+
+	wake_up(&fwc->wait_queue);
+}
+
+/* called with dev->devres_lock held */
+static void dev_create_fw_entry(struct device *dev, void *res,
+				void *data)
+{
+	struct fw_name_devm *fwn = res;
+	const char *fw_name = fwn->name;
+	struct list_head *head = data;
+	struct fw_cache_entry *fce;
+
+	fce = alloc_fw_cache_entry(fw_name);
+	if (fce)
+		list_add(&fce->list, head);
+}
+
+static int devm_name_match(struct device *dev, void *res,
+			   void *match_data)
+{
+	struct fw_name_devm *fwn = res;
+	return (fwn->magic == (unsigned long)match_data);
+}
+
+static void dev_cache_fw_image(struct device *dev, void *data)
+{
+	LIST_HEAD(todo);
+	struct fw_cache_entry *fce;
+	struct fw_cache_entry *fce_next;
+	struct firmware_cache *fwc = &fw_cache;
+
+	devres_for_each_res(dev, fw_name_devm_release,
+			    devm_name_match, &fw_cache,
+			    dev_create_fw_entry, &todo);
+
+	list_for_each_entry_safe(fce, fce_next, &todo, list) {
+		list_del(&fce->list);
+
+		spin_lock(&fwc->name_lock);
+		fwc->cnt++;
+		list_add(&fce->list, &fwc->fw_names);
+		spin_unlock(&fwc->name_lock);
+
+		async_schedule(__async_dev_cache_fw_image, (void *)fce);
+	}
+}
+
+static void __device_uncache_fw_images(void)
+{
+	struct firmware_cache *fwc = &fw_cache;
+	struct fw_cache_entry *fce;
+
+	spin_lock(&fwc->name_lock);
+	while (!list_empty(&fwc->fw_names)) {
+		fce = list_entry(fwc->fw_names.next,
+				struct fw_cache_entry, list);
+		list_del(&fce->list);
+		spin_unlock(&fwc->name_lock);
+
+		uncache_firmware(fce->name);
+		free_fw_cache_entry(fce);
+
+		spin_lock(&fwc->name_lock);
+	}
+	spin_unlock(&fwc->name_lock);
+}
+
+/**
+ * device_cache_fw_images - cache devices' firmware
+ *
+ * If one device called request_firmware or its nowait version
+ * successfully before, the firmware names are recored into the
+ * device's devres link list, so device_cache_fw_images can call
+ * cache_firmware() to cache these firmwares for the device,
+ * then the device driver can load its firmwares easily at
+ * time when system is not ready to complete loading firmware.
+ */
+static void device_cache_fw_images(void)
+{
+	struct firmware_cache *fwc = &fw_cache;
+	int old_timeout;
+	DEFINE_WAIT(wait);
+
+	pr_debug("%s\n", __func__);
+
+	/*
+	 * use small loading timeout for caching devices' firmware
+	 * because all these firmware images have been loaded
+	 * successfully at lease once, also system is ready for
+	 * completing firmware loading now. The maximum size of
+	 * firmware in current distributions is about 2M bytes,
+	 * so 10 secs should be enough.
+	 */
+	old_timeout = loading_timeout;
+	loading_timeout = 10;
+
+	mutex_lock(&fw_lock);
+	fwc->state = FW_LOADER_START_CACHE;
+	dpm_for_each_dev(NULL, dev_cache_fw_image);
+	mutex_unlock(&fw_lock);
+
+	/* wait for completion of caching firmware for all devices */
+	spin_lock(&fwc->name_lock);
+	for (;;) {
+		prepare_to_wait(&fwc->wait_queue, &wait,
+				TASK_UNINTERRUPTIBLE);
+		if (!fwc->cnt)
+			break;
+
+		spin_unlock(&fwc->name_lock);
+
+		schedule();
+
+		spin_lock(&fwc->name_lock);
+	}
+	spin_unlock(&fwc->name_lock);
+	finish_wait(&fwc->wait_queue, &wait);
+
+	loading_timeout = old_timeout;
+}
+
+/**
+ * device_uncache_fw_images - uncache devices' firmware
+ *
+ * uncache all firmwares which have been cached successfully
+ * by device_uncache_fw_images earlier
+ */
+static void device_uncache_fw_images(void)
+{
+	pr_debug("%s\n", __func__);
+	__device_uncache_fw_images();
+}
+
+static void device_uncache_fw_images_work(struct work_struct *work)
+{
+	device_uncache_fw_images();
+}
+
+/**
+ * device_uncache_fw_images_delay - uncache devices firmwares
+ * @delay: number of milliseconds to delay uncache device firmwares
+ *
+ * uncache all devices's firmwares which has been cached successfully
+ * by device_cache_fw_images after @delay milliseconds.
+ */
+static void device_uncache_fw_images_delay(unsigned long delay)
+{
+	schedule_delayed_work(&fw_cache.work,
+			msecs_to_jiffies(delay));
+}
+
+static int fw_pm_notify(struct notifier_block *notify_block,
+			unsigned long mode, void *unused)
+{
+	switch (mode) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		device_cache_fw_images();
+		break;
+
+	case PM_POST_SUSPEND:
+	case PM_POST_HIBERNATION:
+	case PM_POST_RESTORE:
+		/*
+		 * In case that system sleep failed and syscore_suspend is
+		 * not called.
+		 */
+		mutex_lock(&fw_lock);
+		fw_cache.state = FW_LOADER_NO_CACHE;
+		mutex_unlock(&fw_lock);
+
+		device_uncache_fw_images_delay(10 * MSEC_PER_SEC);
+		break;
+	}
+
+	return 0;
+}
+
+/* stop caching firmware once syscore_suspend is reached */
+static int fw_suspend(void)
+{
+	fw_cache.state = FW_LOADER_NO_CACHE;
+	return 0;
+}
+
+static struct syscore_ops fw_syscore_ops = {
+	.suspend = fw_suspend,
+};
+#else
+static int fw_cache_piggyback_on_request(const char *name)
+{
+	return 0;
+}
+#endif
+
+static void __init fw_cache_init(void)
+{
+	spin_lock_init(&fw_cache.lock);
+	INIT_LIST_HEAD(&fw_cache.head);
+	fw_cache.state = FW_LOADER_NO_CACHE;
+
+#ifdef CONFIG_PM_SLEEP
+	spin_lock_init(&fw_cache.name_lock);
+	INIT_LIST_HEAD(&fw_cache.fw_names);
+	fw_cache.cnt = 0;
+
+	init_waitqueue_head(&fw_cache.wait_queue);
+	INIT_DELAYED_WORK(&fw_cache.work,
+			  device_uncache_fw_images_work);
+
+	fw_cache.pm_notify.notifier_call = fw_pm_notify;
+	register_pm_notifier(&fw_cache.pm_notify);
+
+	register_syscore_ops(&fw_syscore_ops);
+#endif
+}
+
 static int __init firmware_class_init(void)
 {
+	fw_cache_init();
 	return class_register(&firmware_class);
 }
 
 static void __exit firmware_class_exit(void)
 {
+#ifdef CONFIG_PM_SLEEP
+	unregister_syscore_ops(&fw_syscore_ops);
+	unregister_pm_notifier(&fw_cache.pm_notify);
+#endif
 	class_unregister(&firmware_class);
 }
 
@@ -726,3 +1354,5 @@ module_exit(firmware_class_exit);
 EXPORT_SYMBOL(release_firmware);
 EXPORT_SYMBOL(request_firmware);
 EXPORT_SYMBOL(request_firmware_nowait);
+EXPORT_SYMBOL_GPL(cache_firmware);
+EXPORT_SYMBOL_GPL(uncache_firmware);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index a1a72250258..8727e9c5eea 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -20,8 +20,13 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
+#include <linux/idr.h>
 
 #include "base.h"
+#include "power/power.h"
+
+/* For automatically allocated device IDs */
+static DEFINE_IDA(platform_devid_ida);
 
 #define to_platform_driver(drv)	(container_of((drv), struct platform_driver, \
 				 driver))
@@ -99,6 +104,9 @@ struct resource *platform_get_resource_byname(struct platform_device *dev,
 	for (i = 0; i < dev->num_resources; i++) {
 		struct resource *r = &dev->resource[i];
 
+		if (unlikely(!r->name))
+			continue;
+
 		if (type == resource_type(r) && !strcmp(r->name, name))
 			return r;
 	}
@@ -263,7 +271,7 @@ EXPORT_SYMBOL_GPL(platform_device_add_data);
  */
 int platform_device_add(struct platform_device *pdev)
 {
-	int i, ret = 0;
+	int i, ret;
 
 	if (!pdev)
 		return -EINVAL;
@@ -273,10 +281,27 @@ int platform_device_add(struct platform_device *pdev)
 
 	pdev->dev.bus = &platform_bus_type;
 
-	if (pdev->id != -1)
+	switch (pdev->id) {
+	default:
 		dev_set_name(&pdev->dev, "%s.%d", pdev->name,  pdev->id);
-	else
+		break;
+	case PLATFORM_DEVID_NONE:
 		dev_set_name(&pdev->dev, "%s", pdev->name);
+		break;
+	case PLATFORM_DEVID_AUTO:
+		/*
+		 * Automatically allocated device ID. We mark it as such so
+		 * that we remember it must be freed, and we append a suffix
+		 * to avoid namespace collision with explicit IDs.
+		 */
+		ret = ida_simple_get(&platform_devid_ida, 0, 0, GFP_KERNEL);
+		if (ret < 0)
+			goto err_out;
+		pdev->id = ret;
+		pdev->id_auto = true;
+		dev_set_name(&pdev->dev, "%s.%d.auto", pdev->name, pdev->id);
+		break;
+	}
 
 	for (i = 0; i < pdev->num_resources; i++) {
 		struct resource *p, *r = &pdev->resource[i];
@@ -309,6 +334,11 @@ int platform_device_add(struct platform_device *pdev)
 		return ret;
 
  failed:
+	if (pdev->id_auto) {
+		ida_simple_remove(&platform_devid_ida, pdev->id);
+		pdev->id = PLATFORM_DEVID_AUTO;
+	}
+
 	while (--i >= 0) {
 		struct resource *r = &pdev->resource[i];
 		unsigned long type = resource_type(r);
@@ -317,6 +347,7 @@ int platform_device_add(struct platform_device *pdev)
 			release_resource(r);
 	}
 
+ err_out:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(platform_device_add);
@@ -336,6 +367,11 @@ void platform_device_del(struct platform_device *pdev)
 	if (pdev) {
 		device_del(&pdev->dev);
 
+		if (pdev->id_auto) {
+			ida_simple_remove(&platform_devid_ida, pdev->id);
+			pdev->id = PLATFORM_DEVID_AUTO;
+		}
+
 		for (i = 0; i < pdev->num_resources; i++) {
 			struct resource *r = &pdev->resource[i];
 			unsigned long type = resource_type(r);
@@ -948,6 +984,7 @@ void __init early_platform_add_devices(struct platform_device **devs, int num)
 		dev = &devs[i]->dev;
 
 		if (!dev->devres_head.next) {
+			pm_runtime_early_init(dev);
 			INIT_LIST_HEAD(&dev->devres_head);
 			list_add_tail(&dev->devres_head,
 				      &early_platform_device_list);
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index 869d7ff2227..eb78e9640c4 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -169,8 +169,7 @@ void pm_clk_init(struct device *dev)
  */
 int pm_clk_create(struct device *dev)
 {
-	int ret = dev_pm_get_subsys_data(dev);
-	return ret < 0 ? ret : 0;
+	return dev_pm_get_subsys_data(dev);
 }
 
 /**
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index a14085cc613..39c32529b83 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -24,7 +24,6 @@
 int dev_pm_get_subsys_data(struct device *dev)
 {
 	struct pm_subsys_data *psd;
-	int ret = 0;
 
 	psd = kzalloc(sizeof(*psd), GFP_KERNEL);
 	if (!psd)
@@ -40,7 +39,6 @@ int dev_pm_get_subsys_data(struct device *dev)
 		dev->power.subsys_data = psd;
 		pm_clk_init(dev);
 		psd = NULL;
-		ret = 1;
 	}
 
 	spin_unlock_irq(&dev->power.lock);
@@ -48,7 +46,7 @@ int dev_pm_get_subsys_data(struct device *dev)
 	/* kfree() verifies that its argument is nonzero. */
 	kfree(psd);
 
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(dev_pm_get_subsys_data);
 
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index ba3487c9835..c22b869245d 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -53,6 +53,24 @@
 static LIST_HEAD(gpd_list);
 static DEFINE_MUTEX(gpd_list_lock);
 
+static struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name)
+{
+	struct generic_pm_domain *genpd = NULL, *gpd;
+
+	if (IS_ERR_OR_NULL(domain_name))
+		return NULL;
+
+	mutex_lock(&gpd_list_lock);
+	list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+		if (!strcmp(gpd->name, domain_name)) {
+			genpd = gpd;
+			break;
+		}
+	}
+	mutex_unlock(&gpd_list_lock);
+	return genpd;
+}
+
 #ifdef CONFIG_PM
 
 struct generic_pm_domain *dev_to_genpd(struct device *dev)
@@ -256,10 +274,28 @@ int pm_genpd_poweron(struct generic_pm_domain *genpd)
 	return ret;
 }
 
+/**
+ * pm_genpd_name_poweron - Restore power to a given PM domain and its masters.
+ * @domain_name: Name of the PM domain to power up.
+ */
+int pm_genpd_name_poweron(const char *domain_name)
+{
+	struct generic_pm_domain *genpd;
+
+	genpd = pm_genpd_lookup_name(domain_name);
+	return genpd ? pm_genpd_poweron(genpd) : -EINVAL;
+}
+
 #endif /* CONFIG_PM */
 
 #ifdef CONFIG_PM_RUNTIME
 
+static int genpd_start_dev_no_timing(struct generic_pm_domain *genpd,
+				     struct device *dev)
+{
+	return GENPD_DEV_CALLBACK(genpd, int, start, dev);
+}
+
 static int genpd_save_dev(struct generic_pm_domain *genpd, struct device *dev)
 {
 	return GENPD_DEV_TIMED_CALLBACK(genpd, int, save_state, dev,
@@ -436,7 +472,7 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd)
 	not_suspended = 0;
 	list_for_each_entry(pdd, &genpd->dev_list, list_node)
 		if (pdd->dev->driver && (!pm_runtime_suspended(pdd->dev)
-		    || pdd->dev->power.irq_safe || to_gpd_data(pdd)->always_on))
+		    || pdd->dev->power.irq_safe))
 			not_suspended++;
 
 	if (not_suspended > genpd->in_progress)
@@ -578,9 +614,6 @@ static int pm_genpd_runtime_suspend(struct device *dev)
 
 	might_sleep_if(!genpd->dev_irq_safe);
 
-	if (dev_gpd_data(dev)->always_on)
-		return -EBUSY;
-
 	stop_ok = genpd->gov ? genpd->gov->stop_ok : NULL;
 	if (stop_ok && !stop_ok(dev))
 		return -EBUSY;
@@ -629,7 +662,7 @@ static int pm_genpd_runtime_resume(struct device *dev)
 
 	/* If power.irq_safe, the PM domain is never powered off. */
 	if (dev->power.irq_safe)
-		return genpd_start_dev(genpd, dev);
+		return genpd_start_dev_no_timing(genpd, dev);
 
 	mutex_lock(&genpd->lock);
 	ret = __pm_genpd_poweron(genpd);
@@ -697,6 +730,24 @@ static inline void genpd_power_off_work_fn(struct work_struct *work) {}
 
 #ifdef CONFIG_PM_SLEEP
 
+/**
+ * pm_genpd_present - Check if the given PM domain has been initialized.
+ * @genpd: PM domain to check.
+ */
+static bool pm_genpd_present(struct generic_pm_domain *genpd)
+{
+	struct generic_pm_domain *gpd;
+
+	if (IS_ERR_OR_NULL(genpd))
+		return false;
+
+	list_for_each_entry(gpd, &gpd_list, gpd_list_node)
+		if (gpd == genpd)
+			return true;
+
+	return false;
+}
+
 static bool genpd_dev_active_wakeup(struct generic_pm_domain *genpd,
 				    struct device *dev)
 {
@@ -750,9 +801,10 @@ static int genpd_thaw_dev(struct generic_pm_domain *genpd, struct device *dev)
  * Check if the given PM domain can be powered off (during system suspend or
  * hibernation) and do that if so.  Also, in that case propagate to its masters.
  *
- * This function is only called in "noirq" stages of system power transitions,
- * so it need not acquire locks (all of the "noirq" callbacks are executed
- * sequentially, so it is guaranteed that it will never run twice in parallel).
+ * This function is only called in "noirq" and "syscore" stages of system power
+ * transitions, so it need not acquire locks (all of the "noirq" callbacks are
+ * executed sequentially, so it is guaranteed that it will never run twice in
+ * parallel).
  */
 static void pm_genpd_sync_poweroff(struct generic_pm_domain *genpd)
 {
@@ -777,6 +829,33 @@ static void pm_genpd_sync_poweroff(struct generic_pm_domain *genpd)
 }
 
 /**
+ * pm_genpd_sync_poweron - Synchronously power on a PM domain and its masters.
+ * @genpd: PM domain to power on.
+ *
+ * This function is only called in "noirq" and "syscore" stages of system power
+ * transitions, so it need not acquire locks (all of the "noirq" callbacks are
+ * executed sequentially, so it is guaranteed that it will never run twice in
+ * parallel).
+ */
+static void pm_genpd_sync_poweron(struct generic_pm_domain *genpd)
+{
+	struct gpd_link *link;
+
+	if (genpd->status != GPD_STATE_POWER_OFF)
+		return;
+
+	list_for_each_entry(link, &genpd->slave_links, slave_node) {
+		pm_genpd_sync_poweron(link->master);
+		genpd_sd_counter_inc(link->master);
+	}
+
+	if (genpd->power_on)
+		genpd->power_on(genpd);
+
+	genpd->status = GPD_STATE_ACTIVE;
+}
+
+/**
  * resume_needed - Check whether to resume a device before system suspend.
  * @dev: Device to check.
  * @genpd: PM domain the device belongs to.
@@ -937,7 +1016,7 @@ static int pm_genpd_suspend_noirq(struct device *dev)
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	if (genpd->suspend_power_off || dev_gpd_data(dev)->always_on
+	if (genpd->suspend_power_off
 	    || (dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev)))
 		return 0;
 
@@ -970,7 +1049,7 @@ static int pm_genpd_resume_noirq(struct device *dev)
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	if (genpd->suspend_power_off || dev_gpd_data(dev)->always_on
+	if (genpd->suspend_power_off
 	    || (dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev)))
 		return 0;
 
@@ -979,7 +1058,7 @@ static int pm_genpd_resume_noirq(struct device *dev)
 	 * guaranteed that this function will never run twice in parallel for
 	 * the same PM domain, so it is not necessary to use locking here.
 	 */
-	pm_genpd_poweron(genpd);
+	pm_genpd_sync_poweron(genpd);
 	genpd->suspended_count--;
 
 	return genpd_start_dev(genpd, dev);
@@ -1090,8 +1169,7 @@ static int pm_genpd_freeze_noirq(struct device *dev)
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	return genpd->suspend_power_off || dev_gpd_data(dev)->always_on ?
-		0 : genpd_stop_dev(genpd, dev);
+	return genpd->suspend_power_off ? 0 : genpd_stop_dev(genpd, dev);
 }
 
 /**
@@ -1111,8 +1189,7 @@ static int pm_genpd_thaw_noirq(struct device *dev)
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	return genpd->suspend_power_off || dev_gpd_data(dev)->always_on ?
-		0 : genpd_start_dev(genpd, dev);
+	return genpd->suspend_power_off ? 0 : genpd_start_dev(genpd, dev);
 }
 
 /**
@@ -1186,8 +1263,8 @@ static int pm_genpd_restore_noirq(struct device *dev)
 	if (genpd->suspended_count++ == 0) {
 		/*
 		 * The boot kernel might put the domain into arbitrary state,
-		 * so make it appear as powered off to pm_genpd_poweron(), so
-		 * that it tries to power it on in case it was really off.
+		 * so make it appear as powered off to pm_genpd_sync_poweron(),
+		 * so that it tries to power it on in case it was really off.
 		 */
 		genpd->status = GPD_STATE_POWER_OFF;
 		if (genpd->suspend_power_off) {
@@ -1205,9 +1282,9 @@ static int pm_genpd_restore_noirq(struct device *dev)
 	if (genpd->suspend_power_off)
 		return 0;
 
-	pm_genpd_poweron(genpd);
+	pm_genpd_sync_poweron(genpd);
 
-	return dev_gpd_data(dev)->always_on ? 0 : genpd_start_dev(genpd, dev);
+	return genpd_start_dev(genpd, dev);
 }
 
 /**
@@ -1246,6 +1323,31 @@ static void pm_genpd_complete(struct device *dev)
 	}
 }
 
+/**
+ * pm_genpd_syscore_switch - Switch power during system core suspend or resume.
+ * @dev: Device that normally is marked as "always on" to switch power for.
+ *
+ * This routine may only be called during the system core (syscore) suspend or
+ * resume phase for devices whose "always on" flags are set.
+ */
+void pm_genpd_syscore_switch(struct device *dev, bool suspend)
+{
+	struct generic_pm_domain *genpd;
+
+	genpd = dev_to_genpd(dev);
+	if (!pm_genpd_present(genpd))
+		return;
+
+	if (suspend) {
+		genpd->suspended_count++;
+		pm_genpd_sync_poweroff(genpd);
+	} else {
+		pm_genpd_sync_poweron(genpd);
+		genpd->suspended_count--;
+	}
+}
+EXPORT_SYMBOL_GPL(pm_genpd_syscore_switch);
+
 #else
 
 #define pm_genpd_prepare		NULL
@@ -1393,6 +1495,19 @@ int __pm_genpd_of_add_device(struct device_node *genpd_node, struct device *dev,
 	return __pm_genpd_add_device(genpd, dev, td);
 }
 
+
+/**
+ * __pm_genpd_name_add_device - Find I/O PM domain and add a device to it.
+ * @domain_name: Name of the PM domain to add the device to.
+ * @dev: Device to be added.
+ * @td: Set of PM QoS timing parameters to attach to the device.
+ */
+int __pm_genpd_name_add_device(const char *domain_name, struct device *dev,
+			       struct gpd_timing_data *td)
+{
+	return __pm_genpd_add_device(pm_genpd_lookup_name(domain_name), dev, td);
+}
+
 /**
  * pm_genpd_remove_device - Remove a device from an I/O PM domain.
  * @genpd: PM domain to remove the device from.
@@ -1455,26 +1570,6 @@ int pm_genpd_remove_device(struct generic_pm_domain *genpd,
 }
 
 /**
- * pm_genpd_dev_always_on - Set/unset the "always on" flag for a given device.
- * @dev: Device to set/unset the flag for.
- * @val: The new value of the device's "always on" flag.
- */
-void pm_genpd_dev_always_on(struct device *dev, bool val)
-{
-	struct pm_subsys_data *psd;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->power.lock, flags);
-
-	psd = dev_to_psd(dev);
-	if (psd && psd->domain_data)
-		to_gpd_data(psd->domain_data)->always_on = val;
-
-	spin_unlock_irqrestore(&dev->power.lock, flags);
-}
-EXPORT_SYMBOL_GPL(pm_genpd_dev_always_on);
-
-/**
  * pm_genpd_dev_need_restore - Set/unset the device's "need restore" flag.
  * @dev: Device to set/unset the flag for.
  * @val: The new value of the device's "need restore" flag.
@@ -1505,7 +1600,8 @@ int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
 	struct gpd_link *link;
 	int ret = 0;
 
-	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain))
+	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain)
+	    || genpd == subdomain)
 		return -EINVAL;
 
  start:
@@ -1552,6 +1648,35 @@ int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
 }
 
 /**
+ * pm_genpd_add_subdomain_names - Add a subdomain to an I/O PM domain.
+ * @master_name: Name of the master PM domain to add the subdomain to.
+ * @subdomain_name: Name of the subdomain to be added.
+ */
+int pm_genpd_add_subdomain_names(const char *master_name,
+				 const char *subdomain_name)
+{
+	struct generic_pm_domain *master = NULL, *subdomain = NULL, *gpd;
+
+	if (IS_ERR_OR_NULL(master_name) || IS_ERR_OR_NULL(subdomain_name))
+		return -EINVAL;
+
+	mutex_lock(&gpd_list_lock);
+	list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+		if (!master && !strcmp(gpd->name, master_name))
+			master = gpd;
+
+		if (!subdomain && !strcmp(gpd->name, subdomain_name))
+			subdomain = gpd;
+
+		if (master && subdomain)
+			break;
+	}
+	mutex_unlock(&gpd_list_lock);
+
+	return pm_genpd_add_subdomain(master, subdomain);
+}
+
+/**
  * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
  * @genpd: Master PM domain to remove the subdomain from.
  * @subdomain: Subdomain to be removed.
@@ -1704,7 +1829,16 @@ int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
 }
 EXPORT_SYMBOL_GPL(__pm_genpd_remove_callbacks);
 
-int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
+/**
+ * pm_genpd_attach_cpuidle - Connect the given PM domain with cpuidle.
+ * @genpd: PM domain to be connected with cpuidle.
+ * @state: cpuidle state this domain can disable/enable.
+ *
+ * Make a PM domain behave as though it contained a CPU core, that is, instead
+ * of calling its power down routine it will enable the given cpuidle state so
+ * that the cpuidle subsystem can power it down (if possible and desirable).
+ */
+int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
 {
 	struct cpuidle_driver *cpuidle_drv;
 	struct gpd_cpu_data *cpu_data;
@@ -1753,7 +1887,24 @@ int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
 	goto out;
 }
 
-int genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+/**
+ * pm_genpd_name_attach_cpuidle - Find PM domain and connect cpuidle to it.
+ * @name: Name of the domain to connect to cpuidle.
+ * @state: cpuidle state this domain can manipulate.
+ */
+int pm_genpd_name_attach_cpuidle(const char *name, int state)
+{
+	return pm_genpd_attach_cpuidle(pm_genpd_lookup_name(name), state);
+}
+
+/**
+ * pm_genpd_detach_cpuidle - Remove the cpuidle connection from a PM domain.
+ * @genpd: PM domain to remove the cpuidle connection from.
+ *
+ * Remove the cpuidle connection set up by pm_genpd_attach_cpuidle() from the
+ * given PM domain.
+ */
+int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
 {
 	struct gpd_cpu_data *cpu_data;
 	struct cpuidle_state *idle_state;
@@ -1784,6 +1935,15 @@ int genpd_detach_cpuidle(struct generic_pm_domain *genpd)
 	return ret;
 }
 
+/**
+ * pm_genpd_name_detach_cpuidle - Find PM domain and disconnect cpuidle from it.
+ * @name: Name of the domain to disconnect cpuidle from.
+ */
+int pm_genpd_name_detach_cpuidle(const char *name)
+{
+	return pm_genpd_detach_cpuidle(pm_genpd_lookup_name(name));
+}
+
 /* Default device callbacks for generic PM domains. */
 
 /**
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 0113adc310d..a3c1404c793 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -57,20 +57,17 @@ static pm_message_t pm_transition;
 static int async_error;
 
 /**
- * device_pm_init - Initialize the PM-related part of a device object.
+ * device_pm_sleep_init - Initialize system suspend-related device fields.
  * @dev: Device object being initialized.
  */
-void device_pm_init(struct device *dev)
+void device_pm_sleep_init(struct device *dev)
 {
 	dev->power.is_prepared = false;
 	dev->power.is_suspended = false;
 	init_completion(&dev->power.completion);
 	complete_all(&dev->power.completion);
 	dev->power.wakeup = NULL;
-	spin_lock_init(&dev->power.lock);
-	pm_runtime_init(dev);
 	INIT_LIST_HEAD(&dev->power.entry);
-	dev->power.power_state = PMSG_INVALID;
 }
 
 /**
@@ -408,6 +405,9 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
 	TRACE_DEVICE(dev);
 	TRACE_RESUME(0);
 
+	if (dev->power.syscore)
+		goto Out;
+
 	if (dev->pm_domain) {
 		info = "noirq power domain ";
 		callback = pm_noirq_op(&dev->pm_domain->ops, state);
@@ -429,6 +429,7 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
 
 	error = dpm_run_callback(callback, dev, state, info);
 
+ Out:
 	TRACE_RESUME(error);
 	return error;
 }
@@ -486,6 +487,9 @@ static int device_resume_early(struct device *dev, pm_message_t state)
 	TRACE_DEVICE(dev);
 	TRACE_RESUME(0);
 
+	if (dev->power.syscore)
+		goto Out;
+
 	if (dev->pm_domain) {
 		info = "early power domain ";
 		callback = pm_late_early_op(&dev->pm_domain->ops, state);
@@ -507,6 +511,7 @@ static int device_resume_early(struct device *dev, pm_message_t state)
 
 	error = dpm_run_callback(callback, dev, state, info);
 
+ Out:
 	TRACE_RESUME(error);
 	return error;
 }
@@ -565,11 +570,13 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 	pm_callback_t callback = NULL;
 	char *info = NULL;
 	int error = 0;
-	bool put = false;
 
 	TRACE_DEVICE(dev);
 	TRACE_RESUME(0);
 
+	if (dev->power.syscore)
+		goto Complete;
+
 	dpm_wait(dev->parent, async);
 	device_lock(dev);
 
@@ -583,7 +590,6 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 		goto Unlock;
 
 	pm_runtime_enable(dev);
-	put = true;
 
 	if (dev->pm_domain) {
 		info = "power domain ";
@@ -632,13 +638,12 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 
  Unlock:
 	device_unlock(dev);
+
+ Complete:
 	complete_all(&dev->power.completion);
 
 	TRACE_RESUME(error);
 
-	if (put)
-		pm_runtime_put_sync(dev);
-
 	return error;
 }
 
@@ -722,6 +727,9 @@ static void device_complete(struct device *dev, pm_message_t state)
 	void (*callback)(struct device *) = NULL;
 	char *info = NULL;
 
+	if (dev->power.syscore)
+		return;
+
 	device_lock(dev);
 
 	if (dev->pm_domain) {
@@ -749,6 +757,8 @@ static void device_complete(struct device *dev, pm_message_t state)
 	}
 
 	device_unlock(dev);
+
+	pm_runtime_put_sync(dev);
 }
 
 /**
@@ -834,6 +844,9 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state)
 	pm_callback_t callback = NULL;
 	char *info = NULL;
 
+	if (dev->power.syscore)
+		return 0;
+
 	if (dev->pm_domain) {
 		info = "noirq power domain ";
 		callback = pm_noirq_op(&dev->pm_domain->ops, state);
@@ -917,6 +930,9 @@ static int device_suspend_late(struct device *dev, pm_message_t state)
 	pm_callback_t callback = NULL;
 	char *info = NULL;
 
+	if (dev->power.syscore)
+		return 0;
+
 	if (dev->pm_domain) {
 		info = "late power domain ";
 		callback = pm_late_early_op(&dev->pm_domain->ops, state);
@@ -996,7 +1012,7 @@ int dpm_suspend_end(pm_message_t state)
 
 	error = dpm_suspend_noirq(state);
 	if (error) {
-		dpm_resume_early(state);
+		dpm_resume_early(resume_event(state));
 		return error;
 	}
 
@@ -1043,16 +1059,23 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 	if (async_error)
 		goto Complete;
 
-	pm_runtime_get_noresume(dev);
+	/*
+	 * If a device configured to wake up the system from sleep states
+	 * has been suspended at run time and there's a resume request pending
+	 * for it, this is equivalent to the device signaling wakeup, so the
+	 * system suspend operation should be aborted.
+	 */
 	if (pm_runtime_barrier(dev) && device_may_wakeup(dev))
 		pm_wakeup_event(dev, 0);
 
 	if (pm_wakeup_pending()) {
-		pm_runtime_put_sync(dev);
 		async_error = -EBUSY;
 		goto Complete;
 	}
 
+	if (dev->power.syscore)
+		goto Complete;
+
 	device_lock(dev);
 
 	if (dev->pm_domain) {
@@ -1111,12 +1134,10 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
  Complete:
 	complete_all(&dev->power.completion);
 
-	if (error) {
-		pm_runtime_put_sync(dev);
+	if (error)
 		async_error = error;
-	} else if (dev->power.is_suspended) {
+	else if (dev->power.is_suspended)
 		__pm_runtime_disable(dev, false);
-	}
 
 	return error;
 }
@@ -1209,6 +1230,17 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	char *info = NULL;
 	int error = 0;
 
+	if (dev->power.syscore)
+		return 0;
+
+	/*
+	 * If a device's parent goes into runtime suspend at the wrong time,
+	 * it won't be possible to resume the device.  To prevent this we
+	 * block runtime suspend here, during the prepare phase, and allow
+	 * it again during the complete phase.
+	 */
+	pm_runtime_get_noresume(dev);
+
 	device_lock(dev);
 
 	dev->power.wakeup_path = device_may_wakeup(dev);
@@ -1324,3 +1356,25 @@ int device_pm_wait_for_dev(struct device *subordinate, struct device *dev)
 	return async_error;
 }
 EXPORT_SYMBOL_GPL(device_pm_wait_for_dev);
+
+/**
+ * dpm_for_each_dev - device iterator.
+ * @data: data for the callback.
+ * @fn: function to be called for each device.
+ *
+ * Iterate over devices in dpm_list, and call @fn for each device,
+ * passing it @data.
+ */
+void dpm_for_each_dev(void *data, void (*fn)(struct device *, void *))
+{
+	struct device *dev;
+
+	if (!fn)
+		return;
+
+	device_pm_lock();
+	list_for_each_entry(dev, &dpm_list, power.entry)
+		fn(dev, data);
+	device_pm_unlock();
+}
+EXPORT_SYMBOL_GPL(dpm_for_each_dev);
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index ac993eafec8..d9468642fc4 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -22,6 +22,7 @@
 #include <linux/rculist.h>
 #include <linux/rcupdate.h>
 #include <linux/opp.h>
+#include <linux/of.h>
 
 /*
  * Internal data structure organization with the OPP layer library is as
@@ -674,3 +675,49 @@ struct srcu_notifier_head *opp_get_notifier(struct device *dev)
 
 	return &dev_opp->head;
 }
+
+#ifdef CONFIG_OF
+/**
+ * of_init_opp_table() - Initialize opp table from device tree
+ * @dev:	device pointer used to lookup device OPPs.
+ *
+ * Register the initial OPP table with the OPP library for given device.
+ */
+int of_init_opp_table(struct device *dev)
+{
+	const struct property *prop;
+	const __be32 *val;
+	int nr;
+
+	prop = of_find_property(dev->of_node, "operating-points", NULL);
+	if (!prop)
+		return -ENODEV;
+	if (!prop->value)
+		return -ENODATA;
+
+	/*
+	 * Each OPP is a set of tuples consisting of frequency and
+	 * voltage like <freq-kHz vol-uV>.
+	 */
+	nr = prop->length / sizeof(u32);
+	if (nr % 2) {
+		dev_err(dev, "%s: Invalid OPP list\n", __func__);
+		return -EINVAL;
+	}
+
+	val = prop->value;
+	while (nr) {
+		unsigned long freq = be32_to_cpup(val++) * 1000;
+		unsigned long volt = be32_to_cpup(val++);
+
+		if (opp_add(dev, freq, volt)) {
+			dev_warn(dev, "%s: Failed to add OPP %ld\n",
+				 __func__, freq);
+			continue;
+		}
+		nr -= 2;
+	}
+
+	return 0;
+}
+#endif
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index eeb4bff9505..0dbfdf4419a 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -1,12 +1,32 @@
 #include <linux/pm_qos.h>
 
+static inline void device_pm_init_common(struct device *dev)
+{
+	if (!dev->power.early_init) {
+		spin_lock_init(&dev->power.lock);
+		dev->power.power_state = PMSG_INVALID;
+		dev->power.early_init = true;
+	}
+}
+
 #ifdef CONFIG_PM_RUNTIME
 
+static inline void pm_runtime_early_init(struct device *dev)
+{
+	dev->power.disable_depth = 1;
+	device_pm_init_common(dev);
+}
+
 extern void pm_runtime_init(struct device *dev);
 extern void pm_runtime_remove(struct device *dev);
 
 #else /* !CONFIG_PM_RUNTIME */
 
+static inline void pm_runtime_early_init(struct device *dev)
+{
+	device_pm_init_common(dev);
+}
+
 static inline void pm_runtime_init(struct device *dev) {}
 static inline void pm_runtime_remove(struct device *dev) {}
 
@@ -25,7 +45,7 @@ static inline struct device *to_device(struct list_head *entry)
 	return container_of(entry, struct device, power.entry);
 }
 
-extern void device_pm_init(struct device *dev);
+extern void device_pm_sleep_init(struct device *dev);
 extern void device_pm_add(struct device *);
 extern void device_pm_remove(struct device *);
 extern void device_pm_move_before(struct device *, struct device *);
@@ -34,12 +54,7 @@ extern void device_pm_move_last(struct device *);
 
 #else /* !CONFIG_PM_SLEEP */
 
-static inline void device_pm_init(struct device *dev)
-{
-	spin_lock_init(&dev->power.lock);
-	dev->power.power_state = PMSG_INVALID;
-	pm_runtime_init(dev);
-}
+static inline void device_pm_sleep_init(struct device *dev) {}
 
 static inline void device_pm_add(struct device *dev)
 {
@@ -60,6 +75,13 @@ static inline void device_pm_move_last(struct device *dev) {}
 
 #endif /* !CONFIG_PM_SLEEP */
 
+static inline void device_pm_init(struct device *dev)
+{
+	device_pm_init_common(dev);
+	device_pm_sleep_init(dev);
+	pm_runtime_init(dev);
+}
+
 #ifdef CONFIG_PM
 
 /*
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 59894873a3b..3148b10dc2e 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -147,6 +147,8 @@ static int rpm_check_suspend_allowed(struct device *dev)
 	    || (dev->power.request_pending
 			&& dev->power.request == RPM_REQ_RESUME))
 		retval = -EAGAIN;
+	else if (__dev_pm_qos_read_value(dev) < 0)
+		retval = -EPERM;
 	else if (dev->power.runtime_status == RPM_SUSPENDED)
 		retval = 1;
 
@@ -388,7 +390,6 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 		goto repeat;
 	}
 
-	dev->power.deferred_resume = false;
 	if (dev->power.no_callbacks)
 		goto no_callback;	/* Assume success. */
 
@@ -403,12 +404,6 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 		goto out;
 	}
 
-	if (__dev_pm_qos_read_value(dev) < 0) {
-		/* Negative PM QoS constraint means "never suspend". */
-		retval = -EPERM;
-		goto out;
-	}
-
 	__update_runtime_status(dev, RPM_SUSPENDING);
 
 	if (dev->pm_domain)
@@ -440,6 +435,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 	wake_up_all(&dev->power.wait_queue);
 
 	if (dev->power.deferred_resume) {
+		dev->power.deferred_resume = false;
 		rpm_resume(dev, 0);
 		retval = -EAGAIN;
 		goto out;
@@ -513,6 +509,9 @@ static int rpm_resume(struct device *dev, int rpmflags)
  repeat:
 	if (dev->power.runtime_error)
 		retval = -EINVAL;
+	else if (dev->power.disable_depth == 1 && dev->power.is_suspended
+	    && dev->power.runtime_status == RPM_ACTIVE)
+		retval = 1;
 	else if (dev->power.disable_depth > 0)
 		retval = -EACCES;
 	if (retval)
@@ -584,6 +583,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
 		    || dev->parent->power.runtime_status == RPM_ACTIVE) {
 			atomic_inc(&dev->parent->power.child_count);
 			spin_unlock(&dev->parent->power.lock);
+			retval = 1;
 			goto no_callback;	/* Assume success. */
 		}
 		spin_unlock(&dev->parent->power.lock);
@@ -664,7 +664,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
 	}
 	wake_up_all(&dev->power.wait_queue);
 
-	if (!retval)
+	if (retval >= 0)
 		rpm_idle(dev, RPM_ASYNC);
 
  out:
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index cbb463b3a75..e6ee5e80e54 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -127,6 +127,8 @@ EXPORT_SYMBOL_GPL(wakeup_source_destroy);
  */
 void wakeup_source_add(struct wakeup_source *ws)
 {
+	unsigned long flags;
+
 	if (WARN_ON(!ws))
 		return;
 
@@ -135,9 +137,9 @@ void wakeup_source_add(struct wakeup_source *ws)
 	ws->active = false;
 	ws->last_time = ktime_get();
 
-	spin_lock_irq(&events_lock);
+	spin_lock_irqsave(&events_lock, flags);
 	list_add_rcu(&ws->entry, &wakeup_sources);
-	spin_unlock_irq(&events_lock);
+	spin_unlock_irqrestore(&events_lock, flags);
 }
 EXPORT_SYMBOL_GPL(wakeup_source_add);
 
@@ -147,12 +149,14 @@ EXPORT_SYMBOL_GPL(wakeup_source_add);
  */
 void wakeup_source_remove(struct wakeup_source *ws)
 {
+	unsigned long flags;
+
 	if (WARN_ON(!ws))
 		return;
 
-	spin_lock_irq(&events_lock);
+	spin_lock_irqsave(&events_lock, flags);
 	list_del_rcu(&ws->entry);
-	spin_unlock_irq(&events_lock);
+	spin_unlock_irqrestore(&events_lock, flags);
 	synchronize_rcu();
 }
 EXPORT_SYMBOL_GPL(wakeup_source_remove);
@@ -649,6 +653,31 @@ void pm_wakeup_event(struct device *dev, unsigned int msec)
 }
 EXPORT_SYMBOL_GPL(pm_wakeup_event);
 
+static void print_active_wakeup_sources(void)
+{
+	struct wakeup_source *ws;
+	int active = 0;
+	struct wakeup_source *last_activity_ws = NULL;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
+		if (ws->active) {
+			pr_info("active wakeup source: %s\n", ws->name);
+			active = 1;
+		} else if (!active &&
+			   (!last_activity_ws ||
+			    ktime_to_ns(ws->last_time) >
+			    ktime_to_ns(last_activity_ws->last_time))) {
+			last_activity_ws = ws;
+		}
+	}
+
+	if (!active && last_activity_ws)
+		pr_info("last active wakeup source: %s\n",
+			last_activity_ws->name);
+	rcu_read_unlock();
+}
+
 /**
  * pm_wakeup_pending - Check if power transition in progress should be aborted.
  *
@@ -671,6 +700,10 @@ bool pm_wakeup_pending(void)
 		events_check_enabled = !ret;
 	}
 	spin_unlock_irqrestore(&events_lock, flags);
+
+	if (ret)
+		print_active_wakeup_sources();
+
 	return ret;
 }
 
@@ -723,15 +756,16 @@ bool pm_get_wakeup_count(unsigned int *count, bool block)
 bool pm_save_wakeup_count(unsigned int count)
 {
 	unsigned int cnt, inpr;
+	unsigned long flags;
 
 	events_check_enabled = false;
-	spin_lock_irq(&events_lock);
+	spin_lock_irqsave(&events_lock, flags);
 	split_counters(&cnt, &inpr);
 	if (cnt == count && inpr == 0) {
 		saved_count = count;
 		events_check_enabled = true;
 	}
-	spin_unlock_irq(&events_lock);
+	spin_unlock_irqrestore(&events_lock, flags);
 	return events_check_enabled;
 }
 
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index a89734621e5..5b6b1d8e6cc 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -16,12 +16,14 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/irqdomain.h>
+#include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
 #include "internal.h"
 
 struct regmap_irq_chip_data {
 	struct mutex lock;
+	struct irq_chip irq_chip;
 
 	struct regmap *map;
 	const struct regmap_irq_chip *chip;
@@ -59,6 +61,14 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
 	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
 	struct regmap *map = d->map;
 	int i, ret;
+	u32 reg;
+
+	if (d->chip->runtime_pm) {
+		ret = pm_runtime_get_sync(map->dev);
+		if (ret < 0)
+			dev_err(map->dev, "IRQ sync failed to resume: %d\n",
+				ret);
+	}
 
 	/*
 	 * If there's been a change in the mask write it back to the
@@ -66,15 +76,22 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
 	 * suppress pointless writes.
 	 */
 	for (i = 0; i < d->chip->num_regs; i++) {
-		ret = regmap_update_bits(d->map, d->chip->mask_base +
-						(i * map->reg_stride *
-						d->irq_reg_stride),
+		reg = d->chip->mask_base +
+			(i * map->reg_stride * d->irq_reg_stride);
+		if (d->chip->mask_invert)
+			ret = regmap_update_bits(d->map, reg,
+					 d->mask_buf_def[i], ~d->mask_buf[i]);
+		else
+			ret = regmap_update_bits(d->map, reg,
 					 d->mask_buf_def[i], d->mask_buf[i]);
 		if (ret != 0)
 			dev_err(d->map->dev, "Failed to sync masks in %x\n",
-				d->chip->mask_base + (i * map->reg_stride));
+				reg);
 	}
 
+	if (d->chip->runtime_pm)
+		pm_runtime_put(map->dev);
+
 	/* If we've changed our wakeup count propagate it to the parent */
 	if (d->wake_count < 0)
 		for (i = d->wake_count; i < 0; i++)
@@ -128,8 +145,7 @@ static int regmap_irq_set_wake(struct irq_data *data, unsigned int on)
 	return 0;
 }
 
-static struct irq_chip regmap_irq_chip = {
-	.name			= "regmap",
+static const struct irq_chip regmap_irq_chip = {
 	.irq_bus_lock		= regmap_irq_lock,
 	.irq_bus_sync_unlock	= regmap_irq_sync_unlock,
 	.irq_disable		= regmap_irq_disable,
@@ -144,6 +160,16 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 	struct regmap *map = data->map;
 	int ret, i;
 	bool handled = false;
+	u32 reg;
+
+	if (chip->runtime_pm) {
+		ret = pm_runtime_get_sync(map->dev);
+		if (ret < 0) {
+			dev_err(map->dev, "IRQ thread failed to resume: %d\n",
+				ret);
+			return IRQ_NONE;
+		}
+	}
 
 	/*
 	 * Ignore masked IRQs and ack if we need to; we ack early so
@@ -160,20 +186,20 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 		if (ret != 0) {
 			dev_err(map->dev, "Failed to read IRQ status: %d\n",
 					ret);
+			if (chip->runtime_pm)
+				pm_runtime_put(map->dev);
 			return IRQ_NONE;
 		}
 
 		data->status_buf[i] &= ~data->mask_buf[i];
 
 		if (data->status_buf[i] && chip->ack_base) {
-			ret = regmap_write(map, chip->ack_base +
-						(i * map->reg_stride *
-						data->irq_reg_stride),
-					   data->status_buf[i]);
+			reg = chip->ack_base +
+				(i * map->reg_stride * data->irq_reg_stride);
+			ret = regmap_write(map, reg, data->status_buf[i]);
 			if (ret != 0)
 				dev_err(map->dev, "Failed to ack 0x%x: %d\n",
-					chip->ack_base + (i * map->reg_stride),
-					ret);
+					reg, ret);
 		}
 	}
 
@@ -185,6 +211,9 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 		}
 	}
 
+	if (chip->runtime_pm)
+		pm_runtime_put(map->dev);
+
 	if (handled)
 		return IRQ_HANDLED;
 	else
@@ -197,7 +226,7 @@ static int regmap_irq_map(struct irq_domain *h, unsigned int virq,
 	struct regmap_irq_chip_data *data = h->host_data;
 
 	irq_set_chip_data(virq, data);
-	irq_set_chip_and_handler(virq, &regmap_irq_chip, handle_edge_irq);
+	irq_set_chip(virq, &data->irq_chip);
 	irq_set_nested_thread(virq, 1);
 
 	/* ARM needs us to explicitly flag the IRQ as valid
@@ -238,6 +267,7 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
 	struct regmap_irq_chip_data *d;
 	int i;
 	int ret = -ENOMEM;
+	u32 reg;
 
 	for (i = 0; i < chip->num_irqs; i++) {
 		if (chip->irqs[i].reg_offset % map->reg_stride)
@@ -284,6 +314,13 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
 			goto err_alloc;
 	}
 
+	d->irq_chip = regmap_irq_chip;
+	d->irq_chip.name = chip->name;
+	if (!chip->wake_base) {
+		d->irq_chip.irq_set_wake = NULL;
+		d->irq_chip.flags |= IRQCHIP_MASK_ON_SUSPEND |
+				     IRQCHIP_SKIP_SET_WAKE;
+	}
 	d->irq = irq;
 	d->map = map;
 	d->chip = chip;
@@ -303,16 +340,37 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
 	/* Mask all the interrupts by default */
 	for (i = 0; i < chip->num_regs; i++) {
 		d->mask_buf[i] = d->mask_buf_def[i];
-		ret = regmap_write(map, chip->mask_base + (i * map->reg_stride
-				   * d->irq_reg_stride),
-				   d->mask_buf[i]);
+		reg = chip->mask_base +
+			(i * map->reg_stride * d->irq_reg_stride);
+		if (chip->mask_invert)
+			ret = regmap_update_bits(map, reg,
+					 d->mask_buf[i], ~d->mask_buf[i]);
+		else
+			ret = regmap_update_bits(map, reg,
+					 d->mask_buf[i], d->mask_buf[i]);
 		if (ret != 0) {
 			dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
-				chip->mask_base + (i * map->reg_stride), ret);
+				reg, ret);
 			goto err_alloc;
 		}
 	}
 
+	/* Wake is disabled by default */
+	if (d->wake_buf) {
+		for (i = 0; i < chip->num_regs; i++) {
+			d->wake_buf[i] = d->mask_buf_def[i];
+			reg = chip->wake_base +
+				(i * map->reg_stride * d->irq_reg_stride);
+			ret = regmap_update_bits(map, reg, d->wake_buf[i],
+						 d->wake_buf[i]);
+			if (ret != 0) {
+				dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
+					reg, ret);
+				goto err_alloc;
+			}
+		}
+	}
+
 	if (irq_base)
 		d->domain = irq_domain_add_legacy(map->dev->of_node,
 						  chip->num_irqs, irq_base, 0,
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index c241ae2f2f1..52069d29ff1 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -659,13 +659,12 @@ EXPORT_SYMBOL_GPL(devm_regmap_init);
  * new cache.  This can be used to restore the cache to defaults or to
  * update the cache configuration to reflect runtime discovery of the
  * hardware.
+ *
+ * No explicit locking is done here, the user needs to ensure that
+ * this function will not race with other calls to regmap.
  */
 int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config)
 {
-	int ret;
-
-	map->lock(map);
-
 	regcache_exit(map);
 	regmap_debugfs_exit(map);
 
@@ -681,11 +680,7 @@ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config)
 	map->cache_bypass = false;
 	map->cache_only = false;
 
-	ret = regcache_init(map, config);
-
-	map->unlock(map);
-
-	return ret;
+	return regcache_init(map, config);
 }
 EXPORT_SYMBOL_GPL(regmap_reinit_cache);
 
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
index 06b3207adeb..a533af21836 100644
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -48,12 +48,12 @@ config BCMA_DRIVER_MIPS
 
 config BCMA_SFLASH
 	bool
-	depends on BCMA_DRIVER_MIPS && BROKEN
+	depends on BCMA_DRIVER_MIPS
 	default y
 
 config BCMA_NFLASH
 	bool
-	depends on BCMA_DRIVER_MIPS && BROKEN
+	depends on BCMA_DRIVER_MIPS
 	default y
 
 config BCMA_DRIVER_GMAC_CMN
diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h
index 3cf9cc923cd..169fc58427d 100644
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -54,6 +54,7 @@ u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc);
 #ifdef CONFIG_BCMA_SFLASH
 /* driver_chipcommon_sflash.c */
 int bcma_sflash_init(struct bcma_drv_cc *cc);
+extern struct platform_device bcma_sflash_dev;
 #else
 static inline int bcma_sflash_init(struct bcma_drv_cc *cc)
 {
@@ -65,6 +66,7 @@ static inline int bcma_sflash_init(struct bcma_drv_cc *cc)
 #ifdef CONFIG_BCMA_NFLASH
 /* driver_chipcommon_nflash.c */
 int bcma_nflash_init(struct bcma_drv_cc *cc);
+extern struct platform_device bcma_nflash_dev;
 #else
 static inline int bcma_nflash_init(struct bcma_drv_cc *cc)
 {
diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c
index 63c8b470536..03bbe104338 100644
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -65,7 +65,7 @@ void bcma_core_set_clockmode(struct bcma_device *core,
 	switch (clkmode) {
 	case BCMA_CLKMODE_FAST:
 		bcma_set32(core, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
-		udelay(64);
+		usleep_range(64, 300);
 		for (i = 0; i < 1500; i++) {
 			if (bcma_read32(core, BCMA_CLKCTLST) &
 			    BCMA_CLKCTLST_HAVEHT) {
diff --git a/drivers/bcma/driver_chipcommon_nflash.c b/drivers/bcma/driver_chipcommon_nflash.c
index 574d62435bc..9042781edec 100644
--- a/drivers/bcma/driver_chipcommon_nflash.c
+++ b/drivers/bcma/driver_chipcommon_nflash.c
@@ -5,15 +5,37 @@
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
+#include <linux/platform_device.h>
 #include <linux/bcma/bcma.h>
-#include <linux/bcma/bcma_driver_chipcommon.h>
-#include <linux/delay.h>
 
 #include "bcma_private.h"
 
+struct platform_device bcma_nflash_dev = {
+	.name		= "bcma_nflash",
+	.num_resources	= 0,
+};
+
 /* Initialize NAND flash access */
 int bcma_nflash_init(struct bcma_drv_cc *cc)
 {
-	bcma_err(cc->core->bus, "NAND flash support is broken\n");
+	struct bcma_bus *bus = cc->core->bus;
+
+	if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4706 &&
+	    cc->core->id.rev != 0x38) {
+		bcma_err(bus, "NAND flash on unsupported board!\n");
+		return -ENOTSUPP;
+	}
+
+	if (!(cc->capabilities & BCMA_CC_CAP_NFLASH)) {
+		bcma_err(bus, "NAND flash not present according to ChipCommon\n");
+		return -ENODEV;
+	}
+
+	cc->nflash.present = true;
+
+	/* Prepare platform device, but don't register it yet. It's too early,
+	 * malloc (required by device_private_init) is not available yet. */
+	bcma_nflash_dev.dev.platform_data = &cc->nflash;
+
 	return 0;
 }
diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c
index c9a4f46c514..201faf106b3 100644
--- a/drivers/bcma/driver_chipcommon_pmu.c
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -76,7 +76,10 @@ static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
 	if (max_msk)
 		bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
 
-	/* Add some delay; allow resources to come up and settle. */
+	/*
+	 * Add some delay; allow resources to come up and settle.
+	 * Delay is required for SoC (early init).
+	 */
 	mdelay(2);
 }
 
@@ -101,7 +104,7 @@ void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable)
 	bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val);
 }
 
-void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
+static void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
 {
 	struct bcma_bus *bus = cc->core->bus;
 
@@ -257,7 +260,7 @@ static u32 bcma_pmu_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m)
 }
 
 /* query bus clock frequency for PMU-enabled chipcommon */
-u32 bcma_pmu_get_clockcontrol(struct bcma_drv_cc *cc)
+static u32 bcma_pmu_get_clockcontrol(struct bcma_drv_cc *cc)
 {
 	struct bcma_bus *bus = cc->core->bus;
 
diff --git a/drivers/bcma/driver_chipcommon_sflash.c b/drivers/bcma/driver_chipcommon_sflash.c
index 6e157a58a1d..2c4eec2ca5a 100644
--- a/drivers/bcma/driver_chipcommon_sflash.c
+++ b/drivers/bcma/driver_chipcommon_sflash.c
@@ -5,15 +5,132 @@
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
+#include <linux/platform_device.h>
 #include <linux/bcma/bcma.h>
-#include <linux/bcma/bcma_driver_chipcommon.h>
-#include <linux/delay.h>
 
 #include "bcma_private.h"
 
+static struct resource bcma_sflash_resource = {
+	.name	= "bcma_sflash",
+	.start	= BCMA_SFLASH,
+	.end	= 0,
+	.flags  = IORESOURCE_MEM | IORESOURCE_READONLY,
+};
+
+struct platform_device bcma_sflash_dev = {
+	.name		= "bcma_sflash",
+	.resource	= &bcma_sflash_resource,
+	.num_resources	= 1,
+};
+
+struct bcma_sflash_tbl_e {
+	char *name;
+	u32 id;
+	u32 blocksize;
+	u16 numblocks;
+};
+
+static struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
+	{ "", 0x14, 0x10000, 32, },
+	{ 0 },
+};
+
+static struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
+	{ 0 },
+};
+
+static struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
+	{ 0 },
+};
+
+static void bcma_sflash_cmd(struct bcma_drv_cc *cc, u32 opcode)
+{
+	int i;
+	bcma_cc_write32(cc, BCMA_CC_FLASHCTL,
+			BCMA_CC_FLASHCTL_START | opcode);
+	for (i = 0; i < 1000; i++) {
+		if (!(bcma_cc_read32(cc, BCMA_CC_FLASHCTL) &
+		      BCMA_CC_FLASHCTL_BUSY))
+			return;
+		cpu_relax();
+	}
+	bcma_err(cc->core->bus, "SFLASH control command failed (timeout)!\n");
+}
+
 /* Initialize serial flash access */
 int bcma_sflash_init(struct bcma_drv_cc *cc)
 {
-	bcma_err(cc->core->bus, "Serial flash support is broken\n");
+	struct bcma_bus *bus = cc->core->bus;
+	struct bcma_sflash *sflash = &cc->sflash;
+	struct bcma_sflash_tbl_e *e;
+	u32 id, id2;
+
+	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+	case BCMA_CC_FLASHT_STSER:
+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_DP);
+
+		bcma_cc_write32(cc, BCMA_CC_FLASHADDR, 0);
+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RES);
+		id = bcma_cc_read32(cc, BCMA_CC_FLASHDATA);
+
+		bcma_cc_write32(cc, BCMA_CC_FLASHADDR, 1);
+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RES);
+		id2 = bcma_cc_read32(cc, BCMA_CC_FLASHDATA);
+
+		switch (id) {
+		case 0xbf:
+			for (e = bcma_sflash_sst_tbl; e->name; e++) {
+				if (e->id == id2)
+					break;
+			}
+			break;
+		default:
+			for (e = bcma_sflash_st_tbl; e->name; e++) {
+				if (e->id == id)
+					break;
+			}
+			break;
+		}
+		if (!e->name) {
+			bcma_err(bus, "Unsupported ST serial flash (id: 0x%X, id2: 0x%X)\n", id, id2);
+			return -ENOTSUPP;
+		}
+
+		break;
+	case BCMA_CC_FLASHT_ATSER:
+		bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_STATUS);
+		id = bcma_cc_read32(cc, BCMA_CC_FLASHDATA) & 0x3c;
+
+		for (e = bcma_sflash_at_tbl; e->name; e++) {
+			if (e->id == id)
+				break;
+		}
+		if (!e->name) {
+			bcma_err(bus, "Unsupported Atmel serial flash (id: 0x%X)\n", id);
+			return -ENOTSUPP;
+		}
+
+		break;
+	default:
+		bcma_err(bus, "Unsupported flash type\n");
+		return -ENOTSUPP;
+	}
+
+	sflash->window = BCMA_SFLASH;
+	sflash->blocksize = e->blocksize;
+	sflash->numblocks = e->numblocks;
+	sflash->size = sflash->blocksize * sflash->numblocks;
+	sflash->present = true;
+
+	bcma_info(bus, "Found %s serial flash (size: %dKiB, blocksize: 0x%X, blocks: %d)\n",
+		  e->name, sflash->size / 1024, sflash->blocksize,
+		  sflash->numblocks);
+
+	/* Prepare platform device, but don't register it yet. It's too early,
+	 * malloc (required by device_private_init) is not available yet. */
+	bcma_sflash_dev.resource[0].end = bcma_sflash_dev.resource[0].start +
+					  sflash->size;
+	bcma_sflash_dev.dev.platform_data = sflash;
+
 	return 0;
 }
diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
index c32ebd537ab..c39ee6d4585 100644
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -51,7 +51,7 @@ static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy)
 		v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL);
 		if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE)
 			break;
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 }
 
@@ -92,7 +92,7 @@ static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address)
 			ret = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_DATA);
 			break;
 		}
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 	pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0);
 	return ret;
@@ -132,7 +132,7 @@ static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device,
 		v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL);
 		if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE)
 			break;
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 	pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0);
 }
diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c
index cbae2c23133..9baf886e82d 100644
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -425,9 +425,9 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	pc_host->io_resource.flags = IORESOURCE_IO | IORESOURCE_PCI_FIXED;
 
 	/* Reset RC */
-	udelay(3000);
+	usleep_range(3000, 5000);
 	pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST_OE);
-	udelay(1000);
+	usleep_range(1000, 2000);
 	pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST |
 			BCMA_CORE_PCI_CTL_RST_OE);
 
@@ -481,7 +481,7 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	 * before issuing configuration requests to PCI Express
 	 * devices.
 	 */
-	udelay(100000);
+	msleep(100);
 
 	bcma_core_pci_enable_crs(pc);
 
@@ -501,7 +501,7 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	set_io_port_base(pc_host->pci_controller.io_map_base);
 	/* Give some time to the PCI controller to configure itself with the new
 	 * values. Not waiting at this point causes crashes of the machine. */
-	mdelay(10);
+	usleep_range(10000, 15000);
 	register_pci_controller(&pc_host->pci_controller);
 	return;
 }
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index 11b32d2642d..b6b4b5ebd4c 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -77,8 +77,8 @@ static void bcma_host_pci_write32(struct bcma_device *core, u16 offset,
 }
 
 #ifdef CONFIG_BCMA_BLOCKIO
-void bcma_host_pci_block_read(struct bcma_device *core, void *buffer,
-			      size_t count, u16 offset, u8 reg_width)
+static void bcma_host_pci_block_read(struct bcma_device *core, void *buffer,
+				     size_t count, u16 offset, u8 reg_width)
 {
 	void __iomem *addr = core->bus->mmio + offset;
 	if (core->bus->mapped_core != core)
@@ -100,8 +100,9 @@ void bcma_host_pci_block_read(struct bcma_device *core, void *buffer,
 	}
 }
 
-void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer,
-			       size_t count, u16 offset, u8 reg_width)
+static void bcma_host_pci_block_write(struct bcma_device *core,
+				      const void *buffer, size_t count,
+				      u16 offset, u8 reg_width)
 {
 	void __iomem *addr = core->bus->mmio + offset;
 	if (core->bus->mapped_core != core)
@@ -139,7 +140,7 @@ static void bcma_host_pci_awrite32(struct bcma_device *core, u16 offset,
 	iowrite32(value, core->bus->mmio + (1 * BCMA_CORE_SIZE) + offset);
 }
 
-const struct bcma_host_ops bcma_host_pci_ops = {
+static const struct bcma_host_ops bcma_host_pci_ops = {
 	.read8		= bcma_host_pci_read8,
 	.read16		= bcma_host_pci_read16,
 	.read32		= bcma_host_pci_read32,
@@ -272,6 +273,8 @@ static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4358) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4359) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
 	{ 0, },
 };
diff --git a/drivers/bcma/host_soc.c b/drivers/bcma/host_soc.c
index 3c381fb8f9c..3475e600011 100644
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -143,7 +143,7 @@ static void bcma_host_soc_awrite32(struct bcma_device *core, u16 offset,
 	writel(value, core->io_wrap + offset);
 }
 
-const struct bcma_host_ops bcma_host_soc_ops = {
+static const struct bcma_host_ops bcma_host_soc_ops = {
 	.read8		= bcma_host_soc_read8,
 	.read16		= bcma_host_soc_read16,
 	.read32		= bcma_host_soc_read32,
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 758af9ccdef..432aeeedfd5 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -7,6 +7,7 @@
 
 #include "bcma_private.h"
 #include <linux/module.h>
+#include <linux/platform_device.h>
 #include <linux/bcma/bcma.h>
 #include <linux/slab.h>
 
@@ -136,6 +137,22 @@ static int bcma_register_cores(struct bcma_bus *bus)
 		dev_id++;
 	}
 
+#ifdef CONFIG_BCMA_SFLASH
+	if (bus->drv_cc.sflash.present) {
+		err = platform_device_register(&bcma_sflash_dev);
+		if (err)
+			bcma_err(bus, "Error registering serial flash\n");
+	}
+#endif
+
+#ifdef CONFIG_BCMA_NFLASH
+	if (bus->drv_cc.nflash.present) {
+		err = platform_device_register(&bcma_nflash_dev);
+		if (err)
+			bcma_err(bus, "Error registering NAND flash\n");
+	}
+#endif
+
 	return 0;
 }
 
@@ -210,7 +227,17 @@ int __devinit bcma_bus_register(struct bcma_bus *bus)
 
 void bcma_bus_unregister(struct bcma_bus *bus)
 {
+	struct bcma_device *cores[3];
+
+	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
+	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
+	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
+
 	bcma_unregister_cores(bus);
+
+	kfree(cores[2]);
+	kfree(cores[1]);
+	kfree(cores[0]);
 }
 
 int __init bcma_bus_early_register(struct bcma_bus *bus,
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index 26823d97fd9..0d546b64be3 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -507,7 +507,11 @@ static bool bcma_sprom_onchip_available(struct bcma_bus *bus)
 		/* for these chips OTP is always available */
 		present = true;
 		break;
-
+	case BCMA_CHIP_ID_BCM43227:
+	case BCMA_CHIP_ID_BCM43228:
+	case BCMA_CHIP_ID_BCM43428:
+		present = chip_status & BCMA_CC_CHIPST_43228_OTP_PRESENT;
+		break;
 	default:
 		present = false;
 		break;
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index a796407123c..f529407db93 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -353,18 +353,6 @@ config BLK_DEV_SX8
 
 	  Use devices /dev/sx8/$N and /dev/sx8/$Np$M.
 
-config BLK_DEV_UB
-	tristate "Low Performance USB Block driver (deprecated)"
-	depends on USB
-	help
-	  This driver supports certain USB attached storage devices
-	  such as flash keys.
-
-	  If you enable this driver, it is recommended to avoid conflicts
-	  with usb-storage by enabling USB_LIBUSUAL.
-
-	  If unsure, say N.
-
 config BLK_DEV_RAM
 	tristate "RAM block device support"
 	---help---
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 5b795059f8f..17e82df3df7 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -33,7 +33,6 @@ obj-$(CONFIG_VIRTIO_BLK)	+= virtio_blk.o
 
 obj-$(CONFIG_VIODASD)		+= viodasd.o
 obj-$(CONFIG_BLK_DEV_SX8)	+= sx8.o
-obj-$(CONFIG_BLK_DEV_UB)	+= ub.o
 obj-$(CONFIG_BLK_DEV_HD)	+= hd.o
 
 obj-$(CONFIG_XEN_BLKDEV_FRONTEND)	+= xen-blkfront.o
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index de0435e63b0..887f68f6d79 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -35,6 +35,7 @@ new_skb(ulong len)
 		skb_reset_mac_header(skb);
 		skb_reset_network_header(skb);
 		skb->protocol = __constant_htons(ETH_P_AOE);
+		skb_checksum_none_assert(skb);
 	}
 	return skb;
 }
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index acda773b372..da3311129a0 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -763,16 +763,7 @@ static void complete_scsi_command(CommandList_struct *c, int timeout,
 		{
 			case CMD_TARGET_STATUS:
 				/* Pass it up to the upper layers... */
-				if( ei->ScsiStatus)
-                		{
-#if 0
-                    			printk(KERN_WARNING "cciss: cmd %p "
-						"has SCSI Status = %x\n",
-						c, ei->ScsiStatus);
-#endif
-					cmd->result |= (ei->ScsiStatus << 1);
-                		}
-				else {  /* scsi status is zero??? How??? */
+				if (!ei->ScsiStatus) {
 					
 	/* Ordinarily, this case should never happen, but there is a bug
 	   in some released firmware revisions that allows it to happen
@@ -804,6 +795,7 @@ static void complete_scsi_command(CommandList_struct *c, int timeout,
 				}
 			break;
 			case CMD_PROTOCOL_ERR:
+				cmd->result = DID_ERROR << 16;
 				dev_warn(&h->pdev->dev,
 					"%p has protocol error\n", c);
                         break;
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index ba91b408aba..d8456649674 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -889,6 +889,7 @@ struct bm_aio_ctx {
 	unsigned int done;
 	unsigned flags;
 #define BM_AIO_COPY_PAGES	1
+#define BM_WRITE_ALL_PAGES	2
 	int error;
 	struct kref kref;
 };
@@ -1059,7 +1060,8 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned flags, unsigned lazy_w
 		if (lazy_writeout_upper_idx && i == lazy_writeout_upper_idx)
 			break;
 		if (rw & WRITE) {
-			if (bm_test_page_unchanged(b->bm_pages[i])) {
+			if (!(flags & BM_WRITE_ALL_PAGES) &&
+			    bm_test_page_unchanged(b->bm_pages[i])) {
 				dynamic_dev_dbg(DEV, "skipped bm write for idx %u\n", i);
 				continue;
 			}
@@ -1141,6 +1143,17 @@ int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local)
 }
 
 /**
+ * drbd_bm_write_all() - Write the whole bitmap to its on disk location.
+ * @mdev:	DRBD device.
+ *
+ * Will write all pages.
+ */
+int drbd_bm_write_all(struct drbd_conf *mdev) __must_hold(local)
+{
+	return bm_rw(mdev, WRITE, BM_WRITE_ALL_PAGES, 0);
+}
+
+/**
  * drbd_bm_lazy_write_out() - Write bitmap pages 0 to @upper_idx-1, if they have changed.
  * @mdev:	DRBD device.
  * @upper_idx:	0: write all changed pages; +ve: page index to stop scanning for changed pages
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index b2ca143d005..b953cc7c9c0 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1469,6 +1469,7 @@ extern int  drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr);
 extern int  drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local);
 extern int  drbd_bm_read(struct drbd_conf *mdev) __must_hold(local);
 extern int  drbd_bm_write(struct drbd_conf *mdev) __must_hold(local);
+extern int drbd_bm_write_all(struct drbd_conf *mdev) __must_hold(local);
 extern int  drbd_bm_write_copy_pages(struct drbd_conf *mdev) __must_hold(local);
 extern unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev,
 		unsigned long al_enr);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 2e0e7fc1dbb..f93a0320e95 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -79,6 +79,7 @@ static int w_md_sync(struct drbd_conf *mdev, struct drbd_work *w, int unused);
 static void md_sync_timer_fn(unsigned long data);
 static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused);
 static int w_go_diskless(struct drbd_conf *mdev, struct drbd_work *w, int unused);
+static void _tl_clear(struct drbd_conf *mdev);
 
 MODULE_AUTHOR("Philipp Reisner <phil@linbit.com>, "
 	      "Lars Ellenberg <lars@linbit.com>");
@@ -432,19 +433,10 @@ static void _tl_restart(struct drbd_conf *mdev, enum drbd_req_event what)
 
 	/* Actions operating on the disk state, also want to work on
 	   requests that got barrier acked. */
-	switch (what) {
-	case fail_frozen_disk_io:
-	case restart_frozen_disk_io:
-		list_for_each_safe(le, tle, &mdev->barrier_acked_requests) {
-			req = list_entry(le, struct drbd_request, tl_requests);
-			_req_mod(req, what);
-		}
 
-	case connection_lost_while_pending:
-	case resend:
-		break;
-	default:
-		dev_err(DEV, "what = %d in _tl_restart()\n", what);
+	list_for_each_safe(le, tle, &mdev->barrier_acked_requests) {
+		req = list_entry(le, struct drbd_request, tl_requests);
+		_req_mod(req, what);
 	}
 }
 
@@ -459,11 +451,16 @@ static void _tl_restart(struct drbd_conf *mdev, enum drbd_req_event what)
  */
 void tl_clear(struct drbd_conf *mdev)
 {
+	spin_lock_irq(&mdev->req_lock);
+	_tl_clear(mdev);
+	spin_unlock_irq(&mdev->req_lock);
+}
+
+static void _tl_clear(struct drbd_conf *mdev)
+{
 	struct list_head *le, *tle;
 	struct drbd_request *r;
 
-	spin_lock_irq(&mdev->req_lock);
-
 	_tl_restart(mdev, connection_lost_while_pending);
 
 	/* we expect this list to be empty. */
@@ -482,7 +479,6 @@ void tl_clear(struct drbd_conf *mdev)
 
 	memset(mdev->app_reads_hash, 0, APP_R_HSIZE*sizeof(void *));
 
-	spin_unlock_irq(&mdev->req_lock);
 }
 
 void tl_restart(struct drbd_conf *mdev, enum drbd_req_event what)
@@ -1476,12 +1472,12 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 	if (ns.susp_fen) {
 		/* case1: The outdate peer handler is successful: */
 		if (os.pdsk > D_OUTDATED  && ns.pdsk <= D_OUTDATED) {
-			tl_clear(mdev);
 			if (test_bit(NEW_CUR_UUID, &mdev->flags)) {
 				drbd_uuid_new_current(mdev);
 				clear_bit(NEW_CUR_UUID, &mdev->flags);
 			}
 			spin_lock_irq(&mdev->req_lock);
+			_tl_clear(mdev);
 			_drbd_set_state(_NS(mdev, susp_fen, 0), CS_VERBOSE, NULL);
 			spin_unlock_irq(&mdev->req_lock);
 		}
@@ -3537,9 +3533,9 @@ static void drbd_cleanup(void)
 }
 
 /**
- * drbd_congested() - Callback for pdflush
+ * drbd_congested() - Callback for the flusher thread
  * @congested_data:	User data
- * @bdi_bits:		Bits pdflush is currently interested in
+ * @bdi_bits:		Bits the BDI flusher thread is currently interested in
  *
  * Returns 1<<BDI_async_congested and/or 1<<BDI_sync_congested if we are congested.
  */
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index fb9dce8daa2..edb490aad8b 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -674,8 +674,8 @@ enum determine_dev_size drbd_determine_dev_size(struct drbd_conf *mdev, enum dds
 			 la_size_changed && md_moved ? "size changed and md moved" :
 			 la_size_changed ? "size changed" : "md moved");
 		/* next line implicitly does drbd_suspend_io()+drbd_resume_io() */
-		err = drbd_bitmap_io(mdev, &drbd_bm_write,
-				"size changed", BM_LOCKED_MASK);
+		err = drbd_bitmap_io(mdev, md_moved ? &drbd_bm_write_all : &drbd_bm_write,
+				     "size changed", BM_LOCKED_MASK);
 		if (err) {
 			rv = dev_size_error;
 			goto out;
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 910335c3092..01b2ac641c7 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -695,6 +695,12 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 		break;
 
 	case resend:
+		/* Simply complete (local only) READs. */
+		if (!(req->rq_state & RQ_WRITE) && !req->w.cb) {
+			_req_may_be_done(req, m);
+			break;
+		}
+
 		/* If RQ_NET_OK is already set, we got a P_WRITE_ACK or P_RECV_ACK
 		   before the connection loss (B&C only); only P_BARRIER_ACK was missing.
 		   Trowing them out of the TL here by pretending we got a BARRIER_ACK
@@ -834,7 +840,15 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, uns
 		req->private_bio = NULL;
 	}
 	if (rw == WRITE) {
-		remote = 1;
+		/* Need to replicate writes.  Unless it is an empty flush,
+		 * which is better mapped to a DRBD P_BARRIER packet,
+		 * also for drbd wire protocol compatibility reasons. */
+		if (unlikely(size == 0)) {
+			/* The only size==0 bios we expect are empty flushes. */
+			D_ASSERT(bio->bi_rw & REQ_FLUSH);
+			remote = 0;
+		} else
+			remote = 1;
 	} else {
 		/* READ || READA */
 		if (local) {
@@ -870,8 +884,11 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, uns
 	 * extent.  This waits for any resync activity in the corresponding
 	 * resync extent to finish, and, if necessary, pulls in the target
 	 * extent into the activity log, which involves further disk io because
-	 * of transactional on-disk meta data updates. */
-	if (rw == WRITE && local && !test_bit(AL_SUSPENDED, &mdev->flags)) {
+	 * of transactional on-disk meta data updates.
+	 * Empty flushes don't need to go into the activity log, they can only
+	 * flush data for pending writes which are already in there. */
+	if (rw == WRITE && local && size
+	&& !test_bit(AL_SUSPENDED, &mdev->flags)) {
 		req->rq_state |= RQ_IN_ACT_LOG;
 		drbd_al_begin_io(mdev, sector);
 	}
@@ -994,7 +1011,10 @@ allocate_barrier:
 	if (rw == WRITE && _req_conflicts(req))
 		goto fail_conflicting;
 
-	list_add_tail(&req->tl_requests, &mdev->newest_tle->requests);
+	/* no point in adding empty flushes to the transfer log,
+	 * they are mapped to drbd barriers already. */
+	if (likely(size!=0))
+		list_add_tail(&req->tl_requests, &mdev->newest_tle->requests);
 
 	/* NOTE remote first: to get the concurrent write detection right,
 	 * we must register the request before start of local IO.  */
@@ -1014,6 +1034,14 @@ allocate_barrier:
 	    mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96)
 		maybe_pull_ahead(mdev);
 
+	/* If this was a flush, queue a drbd barrier/start a new epoch.
+	 * Unless the current epoch was empty anyways, or we are not currently
+	 * replicating, in which case there is no point. */
+	if (unlikely(bio->bi_rw & REQ_FLUSH)
+		&& mdev->newest_tle->n_writes
+		&& drbd_should_do_remote(mdev->state))
+		queue_barrier(mdev);
+
 	spin_unlock_irq(&mdev->req_lock);
 	kfree(b); /* if someone else has beaten us to it... */
 
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index a7d6347aaa7..17c675c5229 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -672,7 +672,6 @@ static void __reschedule_timeout(int drive, const char *message)
 
 	if (drive == current_reqD)
 		drive = current_drive;
-	__cancel_delayed_work(&fd_timeout);
 
 	if (drive < 0 || drive >= N_DRIVE) {
 		delay = 20UL * HZ;
@@ -680,7 +679,7 @@ static void __reschedule_timeout(int drive, const char *message)
 	} else
 		delay = UDP->timeout;
 
-	queue_delayed_work(floppy_wq, &fd_timeout, delay);
+	mod_delayed_work(floppy_wq, &fd_timeout, delay);
 	if (UDP->flags & FD_DEBUG)
 		DPRINT("reschedule timeout %s\n", message);
 	timeout_message = message;
@@ -891,7 +890,7 @@ static void unlock_fdc(void)
 
 	raw_cmd = NULL;
 	command_status = FD_COMMAND_NONE;
-	__cancel_delayed_work(&fd_timeout);
+	cancel_delayed_work(&fd_timeout);
 	do_floppy = NULL;
 	cont = NULL;
 	clear_bit(0, &fdc_busy);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 3bba65510d2..e9d594fd12c 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1038,10 +1038,10 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 {
 	int err;
 	struct loop_func_table *xfer;
-	uid_t uid = current_uid();
+	kuid_t uid = current_uid();
 
 	if (lo->lo_encrypt_key_size &&
-	    lo->lo_key_owner != uid &&
+	    !uid_eq(lo->lo_key_owner, uid) &&
 	    !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	if (lo->lo_state != Lo_bound)
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index a8fddeb3d63..f946d31d691 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -1148,11 +1148,15 @@ static bool mtip_pause_ncq(struct mtip_port *port,
 	reply = port->rxfis + RX_FIS_D2H_REG;
 	task_file_data = readl(port->mmio+PORT_TFDATA);
 
-	if ((task_file_data & 1) || (fis->command == ATA_CMD_SEC_ERASE_UNIT))
+	if (fis->command == ATA_CMD_SEC_ERASE_UNIT)
+		clear_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
+
+	if ((task_file_data & 1))
 		return false;
 
 	if (fis->command == ATA_CMD_SEC_ERASE_PREP) {
 		set_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags);
+		set_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
 		port->ic_pause_timer = jiffies;
 		return true;
 	} else if ((fis->command == ATA_CMD_DOWNLOAD_MICRO) &&
@@ -1900,7 +1904,7 @@ static int exec_drive_command(struct mtip_port *port, u8 *command,
 	int rv = 0, xfer_sz = command[3];
 
 	if (xfer_sz) {
-		if (user_buffer)
+		if (!user_buffer)
 			return -EFAULT;
 
 		buf = dmam_alloc_coherent(&port->dd->pdev->dev,
@@ -2043,7 +2047,7 @@ static void mtip_set_timeout(struct host_to_dev_fis *fis, unsigned int *timeout)
 		*timeout = 240000; /* 4 minutes */
 		break;
 	case ATA_CMD_STANDBYNOW1:
-		*timeout = 10000;  /* 10 seconds */
+		*timeout = 120000;  /* 2 minutes */
 		break;
 	case 0xF7:
 	case 0xFA:
@@ -2588,9 +2592,6 @@ static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
 	if (!len || size)
 		return 0;
 
-	if (size < 0)
-		return -EINVAL;
-
 	size += sprintf(&buf[size], "H/ S ACTive      : [ 0x");
 
 	for (n = dd->slot_groups-1; n >= 0; n--)
@@ -2660,9 +2661,6 @@ static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
 	if (!len || size)
 		return 0;
 
-	if (size < 0)
-		return -EINVAL;
-
 	size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n",
 							dd->port->flags);
 	size += sprintf(&buf[size], "Flag-dd   : [ %08lX ]\n",
@@ -3214,8 +3212,8 @@ static int mtip_hw_init(struct driver_data *dd)
 				"Unable to check write protect progress\n");
 	else
 		dev_info(&dd->pdev->dev,
-				"Write protect progress: %d%% (%d blocks)\n",
-				attr242.cur, attr242.data);
+				"Write protect progress: %u%% (%u blocks)\n",
+				attr242.cur, le32_to_cpu(attr242.data));
 	return rv;
 
 out3:
@@ -3619,6 +3617,10 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
 			bio_endio(bio, -ENODATA);
 			return;
 		}
+		if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag))) {
+			bio_endio(bio, -ENODATA);
+			return;
+		}
 	}
 
 	if (unlikely(!bio_has_data(bio))) {
@@ -4168,7 +4170,13 @@ static void mtip_pci_shutdown(struct pci_dev *pdev)
 
 /* Table of device ids supported by this driver. */
 static DEFINE_PCI_DEVICE_TABLE(mtip_pci_tbl) = {
-	{  PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320H_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320M_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320S_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P325M_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P420H_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P420M_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P425M_DEVICE_ID) },
 	{ 0 }
 };
 
@@ -4199,12 +4207,12 @@ static int __init mtip_init(void)
 {
 	int error;
 
-	printk(KERN_INFO MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n");
+	pr_info(MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n");
 
 	/* Allocate a major block device number to use with this driver. */
 	error = register_blkdev(0, MTIP_DRV_NAME);
 	if (error <= 0) {
-		printk(KERN_ERR "Unable to register block device (%d)\n",
+		pr_err("Unable to register block device (%d)\n",
 		error);
 		return -EBUSY;
 	}
@@ -4213,7 +4221,7 @@ static int __init mtip_init(void)
 	if (!dfs_parent) {
 		dfs_parent = debugfs_create_dir("rssd", NULL);
 		if (IS_ERR_OR_NULL(dfs_parent)) {
-			printk(KERN_WARNING "Error creating debugfs parent\n");
+			pr_warn("Error creating debugfs parent\n");
 			dfs_parent = NULL;
 		}
 	}
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index f51fc23d17b..18627a1d04c 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -76,7 +76,13 @@
 
 /* Micron Vendor ID & P320x SSD Device ID */
 #define PCI_VENDOR_ID_MICRON    0x1344
-#define P320_DEVICE_ID		0x5150
+#define P320H_DEVICE_ID		0x5150
+#define P320M_DEVICE_ID		0x5151
+#define P320S_DEVICE_ID		0x5152
+#define P325M_DEVICE_ID		0x5153
+#define P420H_DEVICE_ID		0x5160
+#define P420M_DEVICE_ID		0x5161
+#define P425M_DEVICE_ID		0x5163
 
 /* Driver name and version strings */
 #define MTIP_DRV_NAME		"mtip32xx"
@@ -131,10 +137,12 @@ enum {
 	MTIP_PF_SVC_THD_STOP_BIT    = 8,
 
 	/* below are bit numbers in 'dd_flag' defined in driver_data */
+	MTIP_DDF_SEC_LOCK_BIT	    = 0,
 	MTIP_DDF_REMOVE_PENDING_BIT = 1,
 	MTIP_DDF_OVER_TEMP_BIT      = 2,
 	MTIP_DDF_WRITE_PROTECT_BIT  = 3,
 	MTIP_DDF_STOP_IO      = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | \
+				(1 << MTIP_DDF_SEC_LOCK_BIT) | \
 				(1 << MTIP_DDF_OVER_TEMP_BIT) | \
 				(1 << MTIP_DDF_WRITE_PROTECT_BIT)),
 
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index d07c9f7fded..0c03411c59e 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -449,6 +449,14 @@ static void nbd_clear_que(struct nbd_device *nbd)
 		req->errors++;
 		nbd_end_request(req);
 	}
+
+	while (!list_empty(&nbd->waiting_queue)) {
+		req = list_entry(nbd->waiting_queue.next, struct request,
+				 queuelist);
+		list_del_init(&req->queuelist);
+		req->errors++;
+		nbd_end_request(req);
+	}
 }
 
 
@@ -598,6 +606,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 		nbd->file = NULL;
 		nbd_clear_que(nbd);
 		BUG_ON(!list_empty(&nbd->queue_head));
+		BUG_ON(!list_empty(&nbd->waiting_queue));
 		if (file)
 			fput(file);
 		return 0;
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index 38a2d063188..931769e133e 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -79,6 +79,7 @@ struct nvme_dev {
 	char serial[20];
 	char model[40];
 	char firmware_rev[8];
+	u32 max_hw_sectors;
 };
 
 /*
@@ -835,15 +836,15 @@ static int nvme_identify(struct nvme_dev *dev, unsigned nsid, unsigned cns,
 }
 
 static int nvme_get_features(struct nvme_dev *dev, unsigned fid,
-				unsigned dword11, dma_addr_t dma_addr)
+				unsigned nsid, dma_addr_t dma_addr)
 {
 	struct nvme_command c;
 
 	memset(&c, 0, sizeof(c));
 	c.features.opcode = nvme_admin_get_features;
+	c.features.nsid = cpu_to_le32(nsid);
 	c.features.prp1 = cpu_to_le64(dma_addr);
 	c.features.fid = cpu_to_le32(fid);
-	c.features.dword11 = cpu_to_le32(dword11);
 
 	return nvme_submit_admin_cmd(dev, &c, NULL);
 }
@@ -862,11 +863,51 @@ static int nvme_set_features(struct nvme_dev *dev, unsigned fid,
 	return nvme_submit_admin_cmd(dev, &c, result);
 }
 
+/**
+ * nvme_cancel_ios - Cancel outstanding I/Os
+ * @queue: The queue to cancel I/Os on
+ * @timeout: True to only cancel I/Os which have timed out
+ */
+static void nvme_cancel_ios(struct nvme_queue *nvmeq, bool timeout)
+{
+	int depth = nvmeq->q_depth - 1;
+	struct nvme_cmd_info *info = nvme_cmd_info(nvmeq);
+	unsigned long now = jiffies;
+	int cmdid;
+
+	for_each_set_bit(cmdid, nvmeq->cmdid_data, depth) {
+		void *ctx;
+		nvme_completion_fn fn;
+		static struct nvme_completion cqe = {
+			.status = cpu_to_le16(NVME_SC_ABORT_REQ) << 1,
+		};
+
+		if (timeout && !time_after(now, info[cmdid].timeout))
+			continue;
+		dev_warn(nvmeq->q_dmadev, "Cancelling I/O %d\n", cmdid);
+		ctx = cancel_cmdid(nvmeq, cmdid, &fn);
+		fn(nvmeq->dev, ctx, &cqe);
+	}
+}
+
+static void nvme_free_queue_mem(struct nvme_queue *nvmeq)
+{
+	dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth),
+				(void *)nvmeq->cqes, nvmeq->cq_dma_addr);
+	dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth),
+					nvmeq->sq_cmds, nvmeq->sq_dma_addr);
+	kfree(nvmeq);
+}
+
 static void nvme_free_queue(struct nvme_dev *dev, int qid)
 {
 	struct nvme_queue *nvmeq = dev->queues[qid];
 	int vector = dev->entry[nvmeq->cq_vector].vector;
 
+	spin_lock_irq(&nvmeq->q_lock);
+	nvme_cancel_ios(nvmeq, false);
+	spin_unlock_irq(&nvmeq->q_lock);
+
 	irq_set_affinity_hint(vector, NULL);
 	free_irq(vector, nvmeq);
 
@@ -876,18 +917,15 @@ static void nvme_free_queue(struct nvme_dev *dev, int qid)
 		adapter_delete_cq(dev, qid);
 	}
 
-	dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth),
-				(void *)nvmeq->cqes, nvmeq->cq_dma_addr);
-	dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth),
-					nvmeq->sq_cmds, nvmeq->sq_dma_addr);
-	kfree(nvmeq);
+	nvme_free_queue_mem(nvmeq);
 }
 
 static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
 							int depth, int vector)
 {
 	struct device *dmadev = &dev->pci_dev->dev;
-	unsigned extra = (depth / 8) + (depth * sizeof(struct nvme_cmd_info));
+	unsigned extra = DIV_ROUND_UP(depth, 8) + (depth *
+						sizeof(struct nvme_cmd_info));
 	struct nvme_queue *nvmeq = kzalloc(sizeof(*nvmeq) + extra, GFP_KERNEL);
 	if (!nvmeq)
 		return NULL;
@@ -975,7 +1013,7 @@ static __devinit struct nvme_queue *nvme_create_queue(struct nvme_dev *dev,
 
 static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev)
 {
-	int result;
+	int result = 0;
 	u32 aqa;
 	u64 cap;
 	unsigned long timeout;
@@ -1005,17 +1043,22 @@ static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev)
 	timeout = ((NVME_CAP_TIMEOUT(cap) + 1) * HZ / 2) + jiffies;
 	dev->db_stride = NVME_CAP_STRIDE(cap);
 
-	while (!(readl(&dev->bar->csts) & NVME_CSTS_RDY)) {
+	while (!result && !(readl(&dev->bar->csts) & NVME_CSTS_RDY)) {
 		msleep(100);
 		if (fatal_signal_pending(current))
-			return -EINTR;
+			result = -EINTR;
 		if (time_after(jiffies, timeout)) {
 			dev_err(&dev->pci_dev->dev,
 				"Device not ready; aborting initialisation\n");
-			return -ENODEV;
+			result = -ENODEV;
 		}
 	}
 
+	if (result) {
+		nvme_free_queue_mem(nvmeq);
+		return result;
+	}
+
 	result = queue_request_irq(dev, nvmeq, "nvme admin");
 	dev->queues[0] = nvmeq;
 	return result;
@@ -1037,6 +1080,8 @@ static struct nvme_iod *nvme_map_user_pages(struct nvme_dev *dev, int write,
 	offset = offset_in_page(addr);
 	count = DIV_ROUND_UP(offset + length, PAGE_SIZE);
 	pages = kcalloc(count, sizeof(*pages), GFP_KERNEL);
+	if (!pages)
+		return ERR_PTR(-ENOMEM);
 
 	err = get_user_pages_fast(addr, count, 1, pages);
 	if (err < count) {
@@ -1146,14 +1191,13 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
 	return status;
 }
 
-static int nvme_user_admin_cmd(struct nvme_ns *ns,
+static int nvme_user_admin_cmd(struct nvme_dev *dev,
 					struct nvme_admin_cmd __user *ucmd)
 {
-	struct nvme_dev *dev = ns->dev;
 	struct nvme_admin_cmd cmd;
 	struct nvme_command c;
 	int status, length;
-	struct nvme_iod *iod;
+	struct nvme_iod *uninitialized_var(iod);
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
@@ -1204,7 +1248,7 @@ static int nvme_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 	case NVME_IOCTL_ID:
 		return ns->ns_id;
 	case NVME_IOCTL_ADMIN_CMD:
-		return nvme_user_admin_cmd(ns, (void __user *)arg);
+		return nvme_user_admin_cmd(ns->dev, (void __user *)arg);
 	case NVME_IOCTL_SUBMIT_IO:
 		return nvme_submit_io(ns, (void __user *)arg);
 	default:
@@ -1218,26 +1262,6 @@ static const struct block_device_operations nvme_fops = {
 	.compat_ioctl	= nvme_ioctl,
 };
 
-static void nvme_timeout_ios(struct nvme_queue *nvmeq)
-{
-	int depth = nvmeq->q_depth - 1;
-	struct nvme_cmd_info *info = nvme_cmd_info(nvmeq);
-	unsigned long now = jiffies;
-	int cmdid;
-
-	for_each_set_bit(cmdid, nvmeq->cmdid_data, depth) {
-		void *ctx;
-		nvme_completion_fn fn;
-		static struct nvme_completion cqe = { .status = cpu_to_le16(NVME_SC_ABORT_REQ) << 1, };
-
-		if (!time_after(now, info[cmdid].timeout))
-			continue;
-		dev_warn(nvmeq->q_dmadev, "Timing out I/O %d\n", cmdid);
-		ctx = cancel_cmdid(nvmeq, cmdid, &fn);
-		fn(nvmeq->dev, ctx, &cqe);
-	}
-}
-
 static void nvme_resubmit_bios(struct nvme_queue *nvmeq)
 {
 	while (bio_list_peek(&nvmeq->sq_cong)) {
@@ -1269,7 +1293,7 @@ static int nvme_kthread(void *data)
 				spin_lock_irq(&nvmeq->q_lock);
 				if (nvme_process_cq(nvmeq))
 					printk("process_cq did something\n");
-				nvme_timeout_ios(nvmeq);
+				nvme_cancel_ios(nvmeq, true);
 				nvme_resubmit_bios(nvmeq);
 				spin_unlock_irq(&nvmeq->q_lock);
 			}
@@ -1339,6 +1363,9 @@ static struct nvme_ns *nvme_alloc_ns(struct nvme_dev *dev, int nsid,
 	ns->disk = disk;
 	lbaf = id->flbas & 0xf;
 	ns->lba_shift = id->lbaf[lbaf].ds;
+	blk_queue_logical_block_size(ns->queue, 1 << ns->lba_shift);
+	if (dev->max_hw_sectors)
+		blk_queue_max_hw_sectors(ns->queue, dev->max_hw_sectors);
 
 	disk->major = nvme_major;
 	disk->minors = NVME_MINORS;
@@ -1383,7 +1410,7 @@ static int set_queue_count(struct nvme_dev *dev, int count)
 
 static int __devinit nvme_setup_io_queues(struct nvme_dev *dev)
 {
-	int result, cpu, i, nr_io_queues, db_bar_size;
+	int result, cpu, i, nr_io_queues, db_bar_size, q_depth;
 
 	nr_io_queues = num_online_cpus();
 	result = set_queue_count(dev, nr_io_queues);
@@ -1429,9 +1456,10 @@ static int __devinit nvme_setup_io_queues(struct nvme_dev *dev)
 		cpu = cpumask_next(cpu, cpu_online_mask);
 	}
 
+	q_depth = min_t(int, NVME_CAP_MQES(readq(&dev->bar->cap)) + 1,
+								NVME_Q_DEPTH);
 	for (i = 0; i < nr_io_queues; i++) {
-		dev->queues[i + 1] = nvme_create_queue(dev, i + 1,
-							NVME_Q_DEPTH, i);
+		dev->queues[i + 1] = nvme_create_queue(dev, i + 1, q_depth, i);
 		if (IS_ERR(dev->queues[i + 1]))
 			return PTR_ERR(dev->queues[i + 1]);
 		dev->queue_count++;
@@ -1480,6 +1508,10 @@ static int __devinit nvme_dev_add(struct nvme_dev *dev)
 	memcpy(dev->serial, ctrl->sn, sizeof(ctrl->sn));
 	memcpy(dev->model, ctrl->mn, sizeof(ctrl->mn));
 	memcpy(dev->firmware_rev, ctrl->fr, sizeof(ctrl->fr));
+	if (ctrl->mdts) {
+		int shift = NVME_CAP_MPSMIN(readq(&dev->bar->cap)) + 12;
+		dev->max_hw_sectors = 1 << (ctrl->mdts + shift - 9);
+	}
 
 	id_ns = mem;
 	for (i = 1; i <= nn; i++) {
@@ -1523,8 +1555,6 @@ static int nvme_dev_remove(struct nvme_dev *dev)
 	list_del(&dev->node);
 	spin_unlock(&dev_list_lock);
 
-	/* TODO: wait all I/O finished or cancel them */
-
 	list_for_each_entry_safe(ns, next, &dev->namespaces, list) {
 		list_del(&ns->list);
 		del_gendisk(ns->disk);
@@ -1560,15 +1590,33 @@ static void nvme_release_prp_pools(struct nvme_dev *dev)
 	dma_pool_destroy(dev->prp_small_pool);
 }
 
-/* XXX: Use an ida or something to let remove / add work correctly */
-static void nvme_set_instance(struct nvme_dev *dev)
+static DEFINE_IDA(nvme_instance_ida);
+
+static int nvme_set_instance(struct nvme_dev *dev)
 {
-	static int instance;
-	dev->instance = instance++;
+	int instance, error;
+
+	do {
+		if (!ida_pre_get(&nvme_instance_ida, GFP_KERNEL))
+			return -ENODEV;
+
+		spin_lock(&dev_list_lock);
+		error = ida_get_new(&nvme_instance_ida, &instance);
+		spin_unlock(&dev_list_lock);
+	} while (error == -EAGAIN);
+
+	if (error)
+		return -ENODEV;
+
+	dev->instance = instance;
+	return 0;
 }
 
 static void nvme_release_instance(struct nvme_dev *dev)
 {
+	spin_lock(&dev_list_lock);
+	ida_remove(&nvme_instance_ida, dev->instance);
+	spin_unlock(&dev_list_lock);
 }
 
 static int __devinit nvme_probe(struct pci_dev *pdev,
@@ -1601,7 +1649,10 @@ static int __devinit nvme_probe(struct pci_dev *pdev,
 	pci_set_drvdata(pdev, dev);
 	dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
 	dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-	nvme_set_instance(dev);
+	result = nvme_set_instance(dev);
+	if (result)
+		goto disable;
+
 	dev->entry[0].vector = pdev->irq;
 
 	result = nvme_setup_prp_pools(dev);
@@ -1675,7 +1726,7 @@ static void __devexit nvme_remove(struct pci_dev *pdev)
 #define nvme_suspend NULL
 #define nvme_resume NULL
 
-static struct pci_error_handlers nvme_err_handler = {
+static const struct pci_error_handlers nvme_err_handler = {
 	.error_detected	= nvme_error_detected,
 	.mmio_enabled	= nvme_dump_registers,
 	.link_reset	= nvme_link_reset,
@@ -1704,15 +1755,17 @@ static struct pci_driver nvme_driver = {
 
 static int __init nvme_init(void)
 {
-	int result = -EBUSY;
+	int result;
 
 	nvme_thread = kthread_run(nvme_kthread, NULL, "nvme");
 	if (IS_ERR(nvme_thread))
 		return PTR_ERR(nvme_thread);
 
-	nvme_major = register_blkdev(nvme_major, "nvme");
-	if (nvme_major <= 0)
+	result = register_blkdev(nvme_major, "nvme");
+	if (result < 0)
 		goto kill_kthread;
+	else if (result > 0)
+		nvme_major = result;
 
 	result = pci_register_driver(&nvme_driver);
 	if (result)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 9917943a357..54a55f03115 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -246,13 +246,12 @@ static int rbd_open(struct block_device *bdev, fmode_t mode)
 {
 	struct rbd_device *rbd_dev = bdev->bd_disk->private_data;
 
-	rbd_get_dev(rbd_dev);
-
-	set_device_ro(bdev, rbd_dev->read_only);
-
 	if ((mode & FMODE_WRITE) && rbd_dev->read_only)
 		return -EROFS;
 
+	rbd_get_dev(rbd_dev);
+	set_device_ro(bdev, rbd_dev->read_only);
+
 	return 0;
 }
 
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
deleted file mode 100644
index fcec0225ac7..00000000000
--- a/drivers/block/ub.c
+++ /dev/null
@@ -1,2474 +0,0 @@
-/*
- * The low performance USB storage driver (ub).
- *
- * Copyright (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
- * Copyright (C) 2004 Pete Zaitcev (zaitcev@yahoo.com)
- *
- * This work is a part of Linux kernel, is derived from it,
- * and is not licensed separately. See file COPYING for details.
- *
- * TODO (sorted by decreasing priority)
- *  -- Return sense now that rq allows it (we always auto-sense anyway).
- *  -- set readonly flag for CDs, set removable flag for CF readers
- *  -- do inquiry and verify we got a disk and not a tape (for LUN mismatch)
- *  -- verify the 13 conditions and do bulk resets
- *  -- highmem
- *  -- move top_sense and work_bcs into separate allocations (if they survive)
- *     for cache purists and esoteric architectures.
- *  -- Allocate structure for LUN 0 before the first ub_sync_tur, avoid NULL. ?
- *  -- prune comments, they are too volumnous
- *  -- Resove XXX's
- *  -- CLEAR, CLR2STS, CLRRS seem to be ripe for refactoring.
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/usb_usual.h>
-#include <linux/blkdev.h>
-#include <linux/timer.h>
-#include <linux/scatterlist.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <scsi/scsi.h>
-
-#define DRV_NAME "ub"
-
-#define UB_MAJOR 180
-
-/*
- * The command state machine is the key model for understanding of this driver.
- *
- * The general rule is that all transitions are done towards the bottom
- * of the diagram, thus preventing any loops.
- *
- * An exception to that is how the STAT state is handled. A counter allows it
- * to be re-entered along the path marked with [C].
- *
- *       +--------+
- *       ! INIT   !
- *       +--------+
- *           !
- *        ub_scsi_cmd_start fails ->--------------------------------------\
- *           !                                                            !
- *           V                                                            !
- *       +--------+                                                       !
- *       ! CMD    !                                                       !
- *       +--------+                                                       !
- *           !                                            +--------+      !
- *         was -EPIPE -->-------------------------------->! CLEAR  !      !
- *           !                                            +--------+      !
- *           !                                                !           !
- *         was error -->------------------------------------- ! --------->\
- *           !                                                !           !
- *  /--<-- cmd->dir == NONE ?                                 !           !
- *  !        !                                                !           !
- *  !        V                                                !           !
- *  !    +--------+                                           !           !
- *  !    ! DATA   !                                           !           !
- *  !    +--------+                                           !           !
- *  !        !                           +---------+          !           !
- *  !      was -EPIPE -->--------------->! CLR2STS !          !           !
- *  !        !                           +---------+          !           !
- *  !        !                                !               !           !
- *  !        !                              was error -->---- ! --------->\
- *  !      was error -->--------------------- ! ------------- ! --------->\
- *  !        !                                !               !           !
- *  !        V                                !               !           !
- *  \--->+--------+                           !               !           !
- *       ! STAT   !<--------------------------/               !           !
- *  /--->+--------+                                           !           !
- *  !        !                                                !           !
- * [C]     was -EPIPE -->-----------\                         !           !
- *  !        !                      !                         !           !
- *  +<---- len == 0                 !                         !           !
- *  !        !                      !                         !           !
- *  !      was error -->--------------------------------------!---------->\
- *  !        !                      !                         !           !
- *  +<---- bad CSW                  !                         !           !
- *  +<---- bad tag                  !                         !           !
- *  !        !                      V                         !           !
- *  !        !                 +--------+                     !           !
- *  !        !                 ! CLRRS  !                     !           !
- *  !        !                 +--------+                     !           !
- *  !        !                      !                         !           !
- *  \------- ! --------------------[C]--------\               !           !
- *           !                                !               !           !
- *         cmd->error---\                +--------+           !           !
- *           !          +--------------->! SENSE  !<----------/           !
- *         STAT_FAIL----/                +--------+                       !
- *           !                                !                           V
- *           !                                V                      +--------+
- *           \--------------------------------\--------------------->! DONE   !
- *                                                                   +--------+
- */
-
-/*
- * This many LUNs per USB device.
- * Every one of them takes a host, see UB_MAX_HOSTS.
- */
-#define UB_MAX_LUNS   9
-
-/*
- */
-
-#define UB_PARTS_PER_LUN      8
-
-#define UB_MAX_CDB_SIZE      16		/* Corresponds to Bulk */
-
-#define UB_SENSE_SIZE  18
-
-/*
- */
-struct ub_dev;
-
-#define UB_MAX_REQ_SG	9	/* cdrecord requires 32KB and maybe a header */
-#define UB_MAX_SECTORS 64
-
-/*
- * A second is more than enough for a 32K transfer (UB_MAX_SECTORS)
- * even if a webcam hogs the bus, but some devices need time to spin up.
- */
-#define UB_URB_TIMEOUT	(HZ*2)
-#define UB_DATA_TIMEOUT	(HZ*5)	/* ZIP does spin-ups in the data phase */
-#define UB_STAT_TIMEOUT	(HZ*5)	/* Same spinups and eject for a dataless cmd. */
-#define UB_CTRL_TIMEOUT	(HZ/2)	/* 500ms ought to be enough to clear a stall */
-
-/*
- * An instance of a SCSI command in transit.
- */
-#define UB_DIR_NONE	0
-#define UB_DIR_READ	1
-#define UB_DIR_ILLEGAL2	2
-#define UB_DIR_WRITE	3
-
-#define UB_DIR_CHAR(c)  (((c)==UB_DIR_WRITE)? 'w': \
-			 (((c)==UB_DIR_READ)? 'r': 'n'))
-
-enum ub_scsi_cmd_state {
-	UB_CMDST_INIT,			/* Initial state */
-	UB_CMDST_CMD,			/* Command submitted */
-	UB_CMDST_DATA,			/* Data phase */
-	UB_CMDST_CLR2STS,		/* Clearing before requesting status */
-	UB_CMDST_STAT,			/* Status phase */
-	UB_CMDST_CLEAR,			/* Clearing a stall (halt, actually) */
-	UB_CMDST_CLRRS,			/* Clearing before retrying status */
-	UB_CMDST_SENSE,			/* Sending Request Sense */
-	UB_CMDST_DONE			/* Final state */
-};
-
-struct ub_scsi_cmd {
-	unsigned char cdb[UB_MAX_CDB_SIZE];
-	unsigned char cdb_len;
-
-	unsigned char dir;		/* 0 - none, 1 - read, 3 - write. */
-	enum ub_scsi_cmd_state state;
-	unsigned int tag;
-	struct ub_scsi_cmd *next;
-
-	int error;			/* Return code - valid upon done */
-	unsigned int act_len;		/* Return size */
-	unsigned char key, asc, ascq;	/* May be valid if error==-EIO */
-
-	int stat_count;			/* Retries getting status. */
-	unsigned int timeo;		/* jiffies until rq->timeout changes */
-
-	unsigned int len;		/* Requested length */
-	unsigned int current_sg;
-	unsigned int nsg;		/* sgv[nsg] */
-	struct scatterlist sgv[UB_MAX_REQ_SG];
-
-	struct ub_lun *lun;
-	void (*done)(struct ub_dev *, struct ub_scsi_cmd *);
-	void *back;
-};
-
-struct ub_request {
-	struct request *rq;
-	unsigned int current_try;
-	unsigned int nsg;		/* sgv[nsg] */
-	struct scatterlist sgv[UB_MAX_REQ_SG];
-};
-
-/*
- */
-struct ub_capacity {
-	unsigned long nsec;		/* Linux size - 512 byte sectors */
-	unsigned int bsize;		/* Linux hardsect_size */
-	unsigned int bshift;		/* Shift between 512 and hard sects */
-};
-
-/*
- * This is a direct take-off from linux/include/completion.h
- * The difference is that I do not wait on this thing, just poll.
- * When I want to wait (ub_probe), I just use the stock completion.
- *
- * Note that INIT_COMPLETION takes no lock. It is correct. But why
- * in the bloody hell that thing takes struct instead of pointer to struct
- * is quite beyond me. I just copied it from the stock completion.
- */
-struct ub_completion {
-	unsigned int done;
-	spinlock_t lock;
-};
-
-static DEFINE_MUTEX(ub_mutex);
-static inline void ub_init_completion(struct ub_completion *x)
-{
-	x->done = 0;
-	spin_lock_init(&x->lock);
-}
-
-#define UB_INIT_COMPLETION(x)	((x).done = 0)
-
-static void ub_complete(struct ub_completion *x)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&x->lock, flags);
-	x->done++;
-	spin_unlock_irqrestore(&x->lock, flags);
-}
-
-static int ub_is_completed(struct ub_completion *x)
-{
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&x->lock, flags);
-	ret = x->done;
-	spin_unlock_irqrestore(&x->lock, flags);
-	return ret;
-}
-
-/*
- */
-struct ub_scsi_cmd_queue {
-	int qlen, qmax;
-	struct ub_scsi_cmd *head, *tail;
-};
-
-/*
- * The block device instance (one per LUN).
- */
-struct ub_lun {
-	struct ub_dev *udev;
-	struct list_head link;
-	struct gendisk *disk;
-	int id;				/* Host index */
-	int num;			/* LUN number */
-	char name[16];
-
-	int changed;			/* Media was changed */
-	int removable;
-	int readonly;
-
-	struct ub_request urq;
-
-	/* Use Ingo's mempool if or when we have more than one command. */
-	/*
-	 * Currently we never need more than one command for the whole device.
-	 * However, giving every LUN a command is a cheap and automatic way
-	 * to enforce fairness between them.
-	 */
-	int cmda[1];
-	struct ub_scsi_cmd cmdv[1];
-
-	struct ub_capacity capacity; 
-};
-
-/*
- * The USB device instance.
- */
-struct ub_dev {
-	spinlock_t *lock;
-	atomic_t poison;		/* The USB device is disconnected */
-	int openc;			/* protected by ub_lock! */
-					/* kref is too implicit for our taste */
-	int reset;			/* Reset is running */
-	int bad_resid;
-	unsigned int tagcnt;
-	char name[12];
-	struct usb_device *dev;
-	struct usb_interface *intf;
-
-	struct list_head luns;
-
-	unsigned int send_bulk_pipe;	/* cached pipe values */
-	unsigned int recv_bulk_pipe;
-	unsigned int send_ctrl_pipe;
-	unsigned int recv_ctrl_pipe;
-
-	struct tasklet_struct tasklet;
-
-	struct ub_scsi_cmd_queue cmd_queue;
-	struct ub_scsi_cmd top_rqs_cmd;	/* REQUEST SENSE */
-	unsigned char top_sense[UB_SENSE_SIZE];
-
-	struct ub_completion work_done;
-	struct urb work_urb;
-	struct timer_list work_timer;
-	int last_pipe;			/* What might need clearing */
-	__le32 signature;		/* Learned signature */
-	struct bulk_cb_wrap work_bcb;
-	struct bulk_cs_wrap work_bcs;
-	struct usb_ctrlrequest work_cr;
-
-	struct work_struct reset_work;
-	wait_queue_head_t reset_wait;
-};
-
-/*
- */
-static void ub_cleanup(struct ub_dev *sc);
-static int ub_request_fn_1(struct ub_lun *lun, struct request *rq);
-static void ub_cmd_build_block(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_scsi_cmd *cmd, struct ub_request *urq);
-static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_scsi_cmd *cmd, struct ub_request *urq);
-static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_end_rq(struct request *rq, unsigned int status);
-static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_request *urq, struct ub_scsi_cmd *cmd);
-static int ub_submit_scsi(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_urb_complete(struct urb *urb);
-static void ub_scsi_action(unsigned long _dev);
-static void ub_scsi_dispatch(struct ub_dev *sc);
-static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_data_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_state_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd, int rc);
-static int __ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_state_stat_counted(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_state_sense(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static int ub_submit_clear_stall(struct ub_dev *sc, struct ub_scsi_cmd *cmd,
-    int stalled_pipe);
-static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd);
-static void ub_reset_enter(struct ub_dev *sc, int try);
-static void ub_reset_task(struct work_struct *work);
-static int ub_sync_tur(struct ub_dev *sc, struct ub_lun *lun);
-static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_capacity *ret);
-static int ub_sync_reset(struct ub_dev *sc);
-static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe);
-static int ub_probe_lun(struct ub_dev *sc, int lnum);
-
-/*
- */
-#ifdef CONFIG_USB_LIBUSUAL
-
-#define ub_usb_ids  usb_storage_usb_ids
-#else
-
-static const struct usb_device_id ub_usb_ids[] = {
-	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_BULK) },
-	{ }
-};
-
-MODULE_DEVICE_TABLE(usb, ub_usb_ids);
-#endif /* CONFIG_USB_LIBUSUAL */
-
-/*
- * Find me a way to identify "next free minor" for add_disk(),
- * and the array disappears the next day. However, the number of
- * hosts has something to do with the naming and /proc/partitions.
- * This has to be thought out in detail before changing.
- * If UB_MAX_HOST was 1000, we'd use a bitmap. Or a better data structure.
- */
-#define UB_MAX_HOSTS  26
-static char ub_hostv[UB_MAX_HOSTS];
-
-#define UB_QLOCK_NUM 5
-static spinlock_t ub_qlockv[UB_QLOCK_NUM];
-static int ub_qlock_next = 0;
-
-static DEFINE_SPINLOCK(ub_lock);	/* Locks globals and ->openc */
-
-/*
- * The id allocator.
- *
- * This also stores the host for indexing by minor, which is somewhat dirty.
- */
-static int ub_id_get(void)
-{
-	unsigned long flags;
-	int i;
-
-	spin_lock_irqsave(&ub_lock, flags);
-	for (i = 0; i < UB_MAX_HOSTS; i++) {
-		if (ub_hostv[i] == 0) {
-			ub_hostv[i] = 1;
-			spin_unlock_irqrestore(&ub_lock, flags);
-			return i;
-		}
-	}
-	spin_unlock_irqrestore(&ub_lock, flags);
-	return -1;
-}
-
-static void ub_id_put(int id)
-{
-	unsigned long flags;
-
-	if (id < 0 || id >= UB_MAX_HOSTS) {
-		printk(KERN_ERR DRV_NAME ": bad host ID %d\n", id);
-		return;
-	}
-
-	spin_lock_irqsave(&ub_lock, flags);
-	if (ub_hostv[id] == 0) {
-		spin_unlock_irqrestore(&ub_lock, flags);
-		printk(KERN_ERR DRV_NAME ": freeing free host ID %d\n", id);
-		return;
-	}
-	ub_hostv[id] = 0;
-	spin_unlock_irqrestore(&ub_lock, flags);
-}
-
-/*
- * This is necessitated by the fact that blk_cleanup_queue does not
- * necesserily destroy the queue. Instead, it may merely decrease q->refcnt.
- * Since our blk_init_queue() passes a spinlock common with ub_dev,
- * we have life time issues when ub_cleanup frees ub_dev.
- */
-static spinlock_t *ub_next_lock(void)
-{
-	unsigned long flags;
-	spinlock_t *ret;
-
-	spin_lock_irqsave(&ub_lock, flags);
-	ret = &ub_qlockv[ub_qlock_next];
-	ub_qlock_next = (ub_qlock_next + 1) % UB_QLOCK_NUM;
-	spin_unlock_irqrestore(&ub_lock, flags);
-	return ret;
-}
-
-/*
- * Downcount for deallocation. This rides on two assumptions:
- *  - once something is poisoned, its refcount cannot grow
- *  - opens cannot happen at this time (del_gendisk was done)
- * If the above is true, we can drop the lock, which we need for
- * blk_cleanup_queue(): the silly thing may attempt to sleep.
- * [Actually, it never needs to sleep for us, but it calls might_sleep()]
- */
-static void ub_put(struct ub_dev *sc)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ub_lock, flags);
-	--sc->openc;
-	if (sc->openc == 0 && atomic_read(&sc->poison)) {
-		spin_unlock_irqrestore(&ub_lock, flags);
-		ub_cleanup(sc);
-	} else {
-		spin_unlock_irqrestore(&ub_lock, flags);
-	}
-}
-
-/*
- * Final cleanup and deallocation.
- */
-static void ub_cleanup(struct ub_dev *sc)
-{
-	struct list_head *p;
-	struct ub_lun *lun;
-	struct request_queue *q;
-
-	while (!list_empty(&sc->luns)) {
-		p = sc->luns.next;
-		lun = list_entry(p, struct ub_lun, link);
-		list_del(p);
-
-		/* I don't think queue can be NULL. But... Stolen from sx8.c */
-		if ((q = lun->disk->queue) != NULL)
-			blk_cleanup_queue(q);
-		/*
-		 * If we zero disk->private_data BEFORE put_disk, we have
-		 * to check for NULL all over the place in open, release,
-		 * check_media and revalidate, because the block level
-		 * semaphore is well inside the put_disk.
-		 * But we cannot zero after the call, because *disk is gone.
-		 * The sd.c is blatantly racy in this area.
-		 */
-		/* disk->private_data = NULL; */
-		put_disk(lun->disk);
-		lun->disk = NULL;
-
-		ub_id_put(lun->id);
-		kfree(lun);
-	}
-
-	usb_set_intfdata(sc->intf, NULL);
-	usb_put_intf(sc->intf);
-	usb_put_dev(sc->dev);
-	kfree(sc);
-}
-
-/*
- * The "command allocator".
- */
-static struct ub_scsi_cmd *ub_get_cmd(struct ub_lun *lun)
-{
-	struct ub_scsi_cmd *ret;
-
-	if (lun->cmda[0])
-		return NULL;
-	ret = &lun->cmdv[0];
-	lun->cmda[0] = 1;
-	return ret;
-}
-
-static void ub_put_cmd(struct ub_lun *lun, struct ub_scsi_cmd *cmd)
-{
-	if (cmd != &lun->cmdv[0]) {
-		printk(KERN_WARNING "%s: releasing a foreign cmd %p\n",
-		    lun->name, cmd);
-		return;
-	}
-	if (!lun->cmda[0]) {
-		printk(KERN_WARNING "%s: releasing a free cmd\n", lun->name);
-		return;
-	}
-	lun->cmda[0] = 0;
-}
-
-/*
- * The command queue.
- */
-static void ub_cmdq_add(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct ub_scsi_cmd_queue *t = &sc->cmd_queue;
-
-	if (t->qlen++ == 0) {
-		t->head = cmd;
-		t->tail = cmd;
-	} else {
-		t->tail->next = cmd;
-		t->tail = cmd;
-	}
-
-	if (t->qlen > t->qmax)
-		t->qmax = t->qlen;
-}
-
-static void ub_cmdq_insert(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct ub_scsi_cmd_queue *t = &sc->cmd_queue;
-
-	if (t->qlen++ == 0) {
-		t->head = cmd;
-		t->tail = cmd;
-	} else {
-		cmd->next = t->head;
-		t->head = cmd;
-	}
-
-	if (t->qlen > t->qmax)
-		t->qmax = t->qlen;
-}
-
-static struct ub_scsi_cmd *ub_cmdq_pop(struct ub_dev *sc)
-{
-	struct ub_scsi_cmd_queue *t = &sc->cmd_queue;
-	struct ub_scsi_cmd *cmd;
-
-	if (t->qlen == 0)
-		return NULL;
-	if (--t->qlen == 0)
-		t->tail = NULL;
-	cmd = t->head;
-	t->head = cmd->next;
-	cmd->next = NULL;
-	return cmd;
-}
-
-#define ub_cmdq_peek(sc)  ((sc)->cmd_queue.head)
-
-/*
- * The request function is our main entry point
- */
-
-static void ub_request_fn(struct request_queue *q)
-{
-	struct ub_lun *lun = q->queuedata;
-	struct request *rq;
-
-	while ((rq = blk_peek_request(q)) != NULL) {
-		if (ub_request_fn_1(lun, rq) != 0) {
-			blk_stop_queue(q);
-			break;
-		}
-	}
-}
-
-static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
-{
-	struct ub_dev *sc = lun->udev;
-	struct ub_scsi_cmd *cmd;
-	struct ub_request *urq;
-	int n_elem;
-
-	if (atomic_read(&sc->poison)) {
-		blk_start_request(rq);
-		ub_end_rq(rq, DID_NO_CONNECT << 16);
-		return 0;
-	}
-
-	if (lun->changed && rq->cmd_type != REQ_TYPE_BLOCK_PC) {
-		blk_start_request(rq);
-		ub_end_rq(rq, SAM_STAT_CHECK_CONDITION);
-		return 0;
-	}
-
-	if (lun->urq.rq != NULL)
-		return -1;
-	if ((cmd = ub_get_cmd(lun)) == NULL)
-		return -1;
-	memset(cmd, 0, sizeof(struct ub_scsi_cmd));
-
-	blk_start_request(rq);
-
-	urq = &lun->urq;
-	memset(urq, 0, sizeof(struct ub_request));
-	urq->rq = rq;
-
-	/*
-	 * get scatterlist from block layer
-	 */
-	sg_init_table(&urq->sgv[0], UB_MAX_REQ_SG);
-	n_elem = blk_rq_map_sg(lun->disk->queue, rq, &urq->sgv[0]);
-	if (n_elem < 0) {
-		/* Impossible, because blk_rq_map_sg should not hit ENOMEM. */
-		printk(KERN_INFO "%s: failed request map (%d)\n",
-		    lun->name, n_elem);
-		goto drop;
-	}
-	if (n_elem > UB_MAX_REQ_SG) {	/* Paranoia */
-		printk(KERN_WARNING "%s: request with %d segments\n",
-		    lun->name, n_elem);
-		goto drop;
-	}
-	urq->nsg = n_elem;
-
-	if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
-		ub_cmd_build_packet(sc, lun, cmd, urq);
-	} else {
-		ub_cmd_build_block(sc, lun, cmd, urq);
-	}
-	cmd->state = UB_CMDST_INIT;
-	cmd->lun = lun;
-	cmd->done = ub_rw_cmd_done;
-	cmd->back = urq;
-
-	cmd->tag = sc->tagcnt++;
-	if (ub_submit_scsi(sc, cmd) != 0)
-		goto drop;
-
-	return 0;
-
-drop:
-	ub_put_cmd(lun, cmd);
-	ub_end_rq(rq, DID_ERROR << 16);
-	return 0;
-}
-
-static void ub_cmd_build_block(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_scsi_cmd *cmd, struct ub_request *urq)
-{
-	struct request *rq = urq->rq;
-	unsigned int block, nblks;
-
-	if (rq_data_dir(rq) == WRITE)
-		cmd->dir = UB_DIR_WRITE;
-	else
-		cmd->dir = UB_DIR_READ;
-
-	cmd->nsg = urq->nsg;
-	memcpy(cmd->sgv, urq->sgv, sizeof(struct scatterlist) * cmd->nsg);
-
-	/*
-	 * build the command
-	 *
-	 * The call to blk_queue_logical_block_size() guarantees that request
-	 * is aligned, but it is given in terms of 512 byte units, always.
-	 */
-	block = blk_rq_pos(rq) >> lun->capacity.bshift;
-	nblks = blk_rq_sectors(rq) >> lun->capacity.bshift;
-
-	cmd->cdb[0] = (cmd->dir == UB_DIR_READ)? READ_10: WRITE_10;
-	/* 10-byte uses 4 bytes of LBA: 2147483648KB, 2097152MB, 2048GB */
-	cmd->cdb[2] = block >> 24;
-	cmd->cdb[3] = block >> 16;
-	cmd->cdb[4] = block >> 8;
-	cmd->cdb[5] = block;
-	cmd->cdb[7] = nblks >> 8;
-	cmd->cdb[8] = nblks;
-	cmd->cdb_len = 10;
-
-	cmd->len = blk_rq_bytes(rq);
-}
-
-static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_scsi_cmd *cmd, struct ub_request *urq)
-{
-	struct request *rq = urq->rq;
-
-	if (blk_rq_bytes(rq) == 0) {
-		cmd->dir = UB_DIR_NONE;
-	} else {
-		if (rq_data_dir(rq) == WRITE)
-			cmd->dir = UB_DIR_WRITE;
-		else
-			cmd->dir = UB_DIR_READ;
-	}
-
-	cmd->nsg = urq->nsg;
-	memcpy(cmd->sgv, urq->sgv, sizeof(struct scatterlist) * cmd->nsg);
-
-	memcpy(&cmd->cdb, rq->cmd, rq->cmd_len);
-	cmd->cdb_len = rq->cmd_len;
-
-	cmd->len = blk_rq_bytes(rq);
-
-	/*
-	 * To reapply this to every URB is not as incorrect as it looks.
-	 * In return, we avoid any complicated tracking calculations.
-	 */
-	cmd->timeo = rq->timeout;
-}
-
-static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct ub_lun *lun = cmd->lun;
-	struct ub_request *urq = cmd->back;
-	struct request *rq;
-	unsigned int scsi_status;
-
-	rq = urq->rq;
-
-	if (cmd->error == 0) {
-		if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
-			if (cmd->act_len >= rq->resid_len)
-				rq->resid_len = 0;
-			else
-				rq->resid_len -= cmd->act_len;
-			scsi_status = 0;
-		} else {
-			if (cmd->act_len != cmd->len) {
-				scsi_status = SAM_STAT_CHECK_CONDITION;
-			} else {
-				scsi_status = 0;
-			}
-		}
-	} else {
-		if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
-			/* UB_SENSE_SIZE is smaller than SCSI_SENSE_BUFFERSIZE */
-			memcpy(rq->sense, sc->top_sense, UB_SENSE_SIZE);
-			rq->sense_len = UB_SENSE_SIZE;
-			if (sc->top_sense[0] != 0)
-				scsi_status = SAM_STAT_CHECK_CONDITION;
-			else
-				scsi_status = DID_ERROR << 16;
-		} else {
-			if (cmd->error == -EIO &&
-			    (cmd->key == 0 ||
-			     cmd->key == MEDIUM_ERROR ||
-			     cmd->key == UNIT_ATTENTION)) {
-				if (ub_rw_cmd_retry(sc, lun, urq, cmd) == 0)
-					return;
-			}
-			scsi_status = SAM_STAT_CHECK_CONDITION;
-		}
-	}
-
-	urq->rq = NULL;
-
-	ub_put_cmd(lun, cmd);
-	ub_end_rq(rq, scsi_status);
-	blk_start_queue(lun->disk->queue);
-}
-
-static void ub_end_rq(struct request *rq, unsigned int scsi_status)
-{
-	int error;
-
-	if (scsi_status == 0) {
-		error = 0;
-	} else {
-		error = -EIO;
-		rq->errors = scsi_status;
-	}
-	__blk_end_request_all(rq, error);
-}
-
-static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_request *urq, struct ub_scsi_cmd *cmd)
-{
-
-	if (atomic_read(&sc->poison))
-		return -ENXIO;
-
-	ub_reset_enter(sc, urq->current_try);
-
-	if (urq->current_try >= 3)
-		return -EIO;
-	urq->current_try++;
-
-	/* Remove this if anyone complains of flooding. */
-	printk(KERN_DEBUG "%s: dir %c len/act %d/%d "
-	    "[sense %x %02x %02x] retry %d\n",
-	    sc->name, UB_DIR_CHAR(cmd->dir), cmd->len, cmd->act_len,
-	    cmd->key, cmd->asc, cmd->ascq, urq->current_try);
-
-	memset(cmd, 0, sizeof(struct ub_scsi_cmd));
-	ub_cmd_build_block(sc, lun, cmd, urq);
-
-	cmd->state = UB_CMDST_INIT;
-	cmd->lun = lun;
-	cmd->done = ub_rw_cmd_done;
-	cmd->back = urq;
-
-	cmd->tag = sc->tagcnt++;
-
-#if 0 /* Wasteful */
-	return ub_submit_scsi(sc, cmd);
-#else
-	ub_cmdq_add(sc, cmd);
-	return 0;
-#endif
-}
-
-/*
- * Submit a regular SCSI operation (not an auto-sense).
- *
- * The Iron Law of Good Submit Routine is:
- * Zero return - callback is done, Nonzero return - callback is not done.
- * No exceptions.
- *
- * Host is assumed locked.
- */
-static int ub_submit_scsi(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-
-	if (cmd->state != UB_CMDST_INIT ||
-	    (cmd->dir != UB_DIR_NONE && cmd->len == 0)) {
-		return -EINVAL;
-	}
-
-	ub_cmdq_add(sc, cmd);
-	/*
-	 * We can call ub_scsi_dispatch(sc) right away here, but it's a little
-	 * safer to jump to a tasklet, in case upper layers do something silly.
-	 */
-	tasklet_schedule(&sc->tasklet);
-	return 0;
-}
-
-/*
- * Submit the first URB for the queued command.
- * This function does not deal with queueing in any way.
- */
-static int ub_scsi_cmd_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct bulk_cb_wrap *bcb;
-	int rc;
-
-	bcb = &sc->work_bcb;
-
-	/*
-	 * ``If the allocation length is eighteen or greater, and a device
-	 * server returns less than eithteen bytes of data, the application
-	 * client should assume that the bytes not transferred would have been
-	 * zeroes had the device server returned those bytes.''
-	 *
-	 * We zero sense for all commands so that when a packet request
-	 * fails it does not return a stale sense.
-	 */
-	memset(&sc->top_sense, 0, UB_SENSE_SIZE);
-
-	/* set up the command wrapper */
-	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
-	bcb->Tag = cmd->tag;		/* Endianness is not important */
-	bcb->DataTransferLength = cpu_to_le32(cmd->len);
-	bcb->Flags = (cmd->dir == UB_DIR_READ) ? 0x80 : 0;
-	bcb->Lun = (cmd->lun != NULL) ? cmd->lun->num : 0;
-	bcb->Length = cmd->cdb_len;
-
-	/* copy the command payload */
-	memcpy(bcb->CDB, cmd->cdb, UB_MAX_CDB_SIZE);
-
-	UB_INIT_COMPLETION(sc->work_done);
-
-	sc->last_pipe = sc->send_bulk_pipe;
-	usb_fill_bulk_urb(&sc->work_urb, sc->dev, sc->send_bulk_pipe,
-	    bcb, US_BULK_CB_WRAP_LEN, ub_urb_complete, sc);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
-		/* XXX Clear stalls */
-		ub_complete(&sc->work_done);
-		return rc;
-	}
-
-	sc->work_timer.expires = jiffies + UB_URB_TIMEOUT;
-	add_timer(&sc->work_timer);
-
-	cmd->state = UB_CMDST_CMD;
-	return 0;
-}
-
-/*
- * Timeout handler.
- */
-static void ub_urb_timeout(unsigned long arg)
-{
-	struct ub_dev *sc = (struct ub_dev *) arg;
-	unsigned long flags;
-
-	spin_lock_irqsave(sc->lock, flags);
-	if (!ub_is_completed(&sc->work_done))
-		usb_unlink_urb(&sc->work_urb);
-	spin_unlock_irqrestore(sc->lock, flags);
-}
-
-/*
- * Completion routine for the work URB.
- *
- * This can be called directly from usb_submit_urb (while we have
- * the sc->lock taken) and from an interrupt (while we do NOT have
- * the sc->lock taken). Therefore, bounce this off to a tasklet.
- */
-static void ub_urb_complete(struct urb *urb)
-{
-	struct ub_dev *sc = urb->context;
-
-	ub_complete(&sc->work_done);
-	tasklet_schedule(&sc->tasklet);
-}
-
-static void ub_scsi_action(unsigned long _dev)
-{
-	struct ub_dev *sc = (struct ub_dev *) _dev;
-	unsigned long flags;
-
-	spin_lock_irqsave(sc->lock, flags);
-	ub_scsi_dispatch(sc);
-	spin_unlock_irqrestore(sc->lock, flags);
-}
-
-static void ub_scsi_dispatch(struct ub_dev *sc)
-{
-	struct ub_scsi_cmd *cmd;
-	int rc;
-
-	while (!sc->reset && (cmd = ub_cmdq_peek(sc)) != NULL) {
-		if (cmd->state == UB_CMDST_DONE) {
-			ub_cmdq_pop(sc);
-			(*cmd->done)(sc, cmd);
-		} else if (cmd->state == UB_CMDST_INIT) {
-			if ((rc = ub_scsi_cmd_start(sc, cmd)) == 0)
-				break;
-			cmd->error = rc;
-			cmd->state = UB_CMDST_DONE;
-		} else {
-			if (!ub_is_completed(&sc->work_done))
-				break;
-			del_timer(&sc->work_timer);
-			ub_scsi_urb_compl(sc, cmd);
-		}
-	}
-}
-
-static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct urb *urb = &sc->work_urb;
-	struct bulk_cs_wrap *bcs;
-	int endp;
-	int len;
-	int rc;
-
-	if (atomic_read(&sc->poison)) {
-		ub_state_done(sc, cmd, -ENODEV);
-		return;
-	}
-
-	endp = usb_pipeendpoint(sc->last_pipe);
-	if (usb_pipein(sc->last_pipe))
-		endp |= USB_DIR_IN;
-
-	if (cmd->state == UB_CMDST_CLEAR) {
-		if (urb->status == -EPIPE) {
-			/*
-			 * STALL while clearning STALL.
-			 * The control pipe clears itself - nothing to do.
-			 */
-			printk(KERN_NOTICE "%s: stall on control pipe\n",
-			    sc->name);
-			goto Bad_End;
-		}
-
-		/*
-		 * We ignore the result for the halt clear.
-		 */
-
-		usb_reset_endpoint(sc->dev, endp);
-
-		ub_state_sense(sc, cmd);
-
-	} else if (cmd->state == UB_CMDST_CLR2STS) {
-		if (urb->status == -EPIPE) {
-			printk(KERN_NOTICE "%s: stall on control pipe\n",
-			    sc->name);
-			goto Bad_End;
-		}
-
-		/*
-		 * We ignore the result for the halt clear.
-		 */
-
-		usb_reset_endpoint(sc->dev, endp);
-
-		ub_state_stat(sc, cmd);
-
-	} else if (cmd->state == UB_CMDST_CLRRS) {
-		if (urb->status == -EPIPE) {
-			printk(KERN_NOTICE "%s: stall on control pipe\n",
-			    sc->name);
-			goto Bad_End;
-		}
-
-		/*
-		 * We ignore the result for the halt clear.
-		 */
-
-		usb_reset_endpoint(sc->dev, endp);
-
-		ub_state_stat_counted(sc, cmd);
-
-	} else if (cmd->state == UB_CMDST_CMD) {
-		switch (urb->status) {
-		case 0:
-			break;
-		case -EOVERFLOW:
-			goto Bad_End;
-		case -EPIPE:
-			rc = ub_submit_clear_stall(sc, cmd, sc->last_pipe);
-			if (rc != 0) {
-				printk(KERN_NOTICE "%s: "
-				    "unable to submit clear (%d)\n",
-				    sc->name, rc);
-				/*
-				 * This is typically ENOMEM or some other such shit.
-				 * Retrying is pointless. Just do Bad End on it...
-				 */
-				ub_state_done(sc, cmd, rc);
-				return;
-			}
-			cmd->state = UB_CMDST_CLEAR;
-			return;
-		case -ESHUTDOWN:	/* unplug */
-		case -EILSEQ:		/* unplug timeout on uhci */
-			ub_state_done(sc, cmd, -ENODEV);
-			return;
-		default:
-			goto Bad_End;
-		}
-		if (urb->actual_length != US_BULK_CB_WRAP_LEN) {
-			goto Bad_End;
-		}
-
-		if (cmd->dir == UB_DIR_NONE || cmd->nsg < 1) {
-			ub_state_stat(sc, cmd);
-			return;
-		}
-
-		// udelay(125);		// usb-storage has this
-		ub_data_start(sc, cmd);
-
-	} else if (cmd->state == UB_CMDST_DATA) {
-		if (urb->status == -EPIPE) {
-			rc = ub_submit_clear_stall(sc, cmd, sc->last_pipe);
-			if (rc != 0) {
-				printk(KERN_NOTICE "%s: "
-				    "unable to submit clear (%d)\n",
-				    sc->name, rc);
-				ub_state_done(sc, cmd, rc);
-				return;
-			}
-			cmd->state = UB_CMDST_CLR2STS;
-			return;
-		}
-		if (urb->status == -EOVERFLOW) {
-			/*
-			 * A babble? Failure, but we must transfer CSW now.
-			 */
-			cmd->error = -EOVERFLOW;	/* A cheap trick... */
-			ub_state_stat(sc, cmd);
-			return;
-		}
-
-		if (cmd->dir == UB_DIR_WRITE) {
-			/*
-			 * Do not continue writes in case of a failure.
-			 * Doing so would cause sectors to be mixed up,
-			 * which is worse than sectors lost.
-			 *
-			 * We must try to read the CSW, or many devices
-			 * get confused.
-			 */
-			len = urb->actual_length;
-			if (urb->status != 0 ||
-			    len != cmd->sgv[cmd->current_sg].length) {
-				cmd->act_len += len;
-
-				cmd->error = -EIO;
-				ub_state_stat(sc, cmd);
-				return;
-			}
-
-		} else {
-			/*
-			 * If an error occurs on read, we record it, and
-			 * continue to fetch data in order to avoid bubble.
-			 *
-			 * As a small shortcut, we stop if we detect that
-			 * a CSW mixed into data.
-			 */
-			if (urb->status != 0)
-				cmd->error = -EIO;
-
-			len = urb->actual_length;
-			if (urb->status != 0 ||
-			    len != cmd->sgv[cmd->current_sg].length) {
-				if ((len & 0x1FF) == US_BULK_CS_WRAP_LEN)
-					goto Bad_End;
-			}
-		}
-
-		cmd->act_len += urb->actual_length;
-
-		if (++cmd->current_sg < cmd->nsg) {
-			ub_data_start(sc, cmd);
-			return;
-		}
-		ub_state_stat(sc, cmd);
-
-	} else if (cmd->state == UB_CMDST_STAT) {
-		if (urb->status == -EPIPE) {
-			rc = ub_submit_clear_stall(sc, cmd, sc->last_pipe);
-			if (rc != 0) {
-				printk(KERN_NOTICE "%s: "
-				    "unable to submit clear (%d)\n",
-				    sc->name, rc);
-				ub_state_done(sc, cmd, rc);
-				return;
-			}
-
-			/*
-			 * Having a stall when getting CSW is an error, so
-			 * make sure uppper levels are not oblivious to it.
-			 */
-			cmd->error = -EIO;		/* A cheap trick... */
-
-			cmd->state = UB_CMDST_CLRRS;
-			return;
-		}
-
-		/* Catch everything, including -EOVERFLOW and other nasties. */
-		if (urb->status != 0)
-			goto Bad_End;
-
-		if (urb->actual_length == 0) {
-			ub_state_stat_counted(sc, cmd);
-			return;
-		}
-
-		/*
-		 * Check the returned Bulk protocol status.
-		 * The status block has to be validated first.
-		 */
-
-		bcs = &sc->work_bcs;
-
-		if (sc->signature == cpu_to_le32(0)) {
-			/*
-			 * This is the first reply, so do not perform the check.
-			 * Instead, remember the signature the device uses
-			 * for future checks. But do not allow a nul.
-			 */
-			sc->signature = bcs->Signature;
-			if (sc->signature == cpu_to_le32(0)) {
-				ub_state_stat_counted(sc, cmd);
-				return;
-			}
-		} else {
-			if (bcs->Signature != sc->signature) {
-				ub_state_stat_counted(sc, cmd);
-				return;
-			}
-		}
-
-		if (bcs->Tag != cmd->tag) {
-			/*
-			 * This usually happens when we disagree with the
-			 * device's microcode about something. For instance,
-			 * a few of them throw this after timeouts. They buffer
-			 * commands and reply at commands we timed out before.
-			 * Without flushing these replies we loop forever.
-			 */
-			ub_state_stat_counted(sc, cmd);
-			return;
-		}
-
-		if (!sc->bad_resid) {
-			len = le32_to_cpu(bcs->Residue);
-			if (len != cmd->len - cmd->act_len) {
-				/*
-				 * Only start ignoring if this cmd ended well.
-				 */
-				if (cmd->len == cmd->act_len) {
-					printk(KERN_NOTICE "%s: "
-					    "bad residual %d of %d, ignoring\n",
-					    sc->name, len, cmd->len);
-					sc->bad_resid = 1;
-				}
-			}
-		}
-
-		switch (bcs->Status) {
-		case US_BULK_STAT_OK:
-			break;
-		case US_BULK_STAT_FAIL:
-			ub_state_sense(sc, cmd);
-			return;
-		case US_BULK_STAT_PHASE:
-			goto Bad_End;
-		default:
-			printk(KERN_INFO "%s: unknown CSW status 0x%x\n",
-			    sc->name, bcs->Status);
-			ub_state_done(sc, cmd, -EINVAL);
-			return;
-		}
-
-		/* Not zeroing error to preserve a babble indicator */
-		if (cmd->error != 0) {
-			ub_state_sense(sc, cmd);
-			return;
-		}
-		cmd->state = UB_CMDST_DONE;
-		ub_cmdq_pop(sc);
-		(*cmd->done)(sc, cmd);
-
-	} else if (cmd->state == UB_CMDST_SENSE) {
-		ub_state_done(sc, cmd, -EIO);
-
-	} else {
-		printk(KERN_WARNING "%s: wrong command state %d\n",
-		    sc->name, cmd->state);
-		ub_state_done(sc, cmd, -EINVAL);
-		return;
-	}
-	return;
-
-Bad_End: /* Little Excel is dead */
-	ub_state_done(sc, cmd, -EIO);
-}
-
-/*
- * Factorization helper for the command state machine:
- * Initiate a data segment transfer.
- */
-static void ub_data_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct scatterlist *sg = &cmd->sgv[cmd->current_sg];
-	int pipe;
-	int rc;
-
-	UB_INIT_COMPLETION(sc->work_done);
-
-	if (cmd->dir == UB_DIR_READ)
-		pipe = sc->recv_bulk_pipe;
-	else
-		pipe = sc->send_bulk_pipe;
-	sc->last_pipe = pipe;
-	usb_fill_bulk_urb(&sc->work_urb, sc->dev, pipe, sg_virt(sg),
-	    sg->length, ub_urb_complete, sc);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
-		/* XXX Clear stalls */
-		ub_complete(&sc->work_done);
-		ub_state_done(sc, cmd, rc);
-		return;
-	}
-
-	if (cmd->timeo)
-		sc->work_timer.expires = jiffies + cmd->timeo;
-	else
-		sc->work_timer.expires = jiffies + UB_DATA_TIMEOUT;
-	add_timer(&sc->work_timer);
-
-	cmd->state = UB_CMDST_DATA;
-}
-
-/*
- * Factorization helper for the command state machine:
- * Finish the command.
- */
-static void ub_state_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd, int rc)
-{
-
-	cmd->error = rc;
-	cmd->state = UB_CMDST_DONE;
-	ub_cmdq_pop(sc);
-	(*cmd->done)(sc, cmd);
-}
-
-/*
- * Factorization helper for the command state machine:
- * Submit a CSW read.
- */
-static int __ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	int rc;
-
-	UB_INIT_COMPLETION(sc->work_done);
-
-	sc->last_pipe = sc->recv_bulk_pipe;
-	usb_fill_bulk_urb(&sc->work_urb, sc->dev, sc->recv_bulk_pipe,
-	    &sc->work_bcs, US_BULK_CS_WRAP_LEN, ub_urb_complete, sc);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
-		/* XXX Clear stalls */
-		ub_complete(&sc->work_done);
-		ub_state_done(sc, cmd, rc);
-		return -1;
-	}
-
-	if (cmd->timeo)
-		sc->work_timer.expires = jiffies + cmd->timeo;
-	else
-		sc->work_timer.expires = jiffies + UB_STAT_TIMEOUT;
-	add_timer(&sc->work_timer);
-	return 0;
-}
-
-/*
- * Factorization helper for the command state machine:
- * Submit a CSW read and go to STAT state.
- */
-static void ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-
-	if (__ub_state_stat(sc, cmd) != 0)
-		return;
-
-	cmd->stat_count = 0;
-	cmd->state = UB_CMDST_STAT;
-}
-
-/*
- * Factorization helper for the command state machine:
- * Submit a CSW read and go to STAT state with counter (along [C] path).
- */
-static void ub_state_stat_counted(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-
-	if (++cmd->stat_count >= 4) {
-		ub_state_sense(sc, cmd);
-		return;
-	}
-
-	if (__ub_state_stat(sc, cmd) != 0)
-		return;
-
-	cmd->state = UB_CMDST_STAT;
-}
-
-/*
- * Factorization helper for the command state machine:
- * Submit a REQUEST SENSE and go to SENSE state.
- */
-static void ub_state_sense(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct ub_scsi_cmd *scmd;
-	struct scatterlist *sg;
-	int rc;
-
-	if (cmd->cdb[0] == REQUEST_SENSE) {
-		rc = -EPIPE;
-		goto error;
-	}
-
-	scmd = &sc->top_rqs_cmd;
-	memset(scmd, 0, sizeof(struct ub_scsi_cmd));
-	scmd->cdb[0] = REQUEST_SENSE;
-	scmd->cdb[4] = UB_SENSE_SIZE;
-	scmd->cdb_len = 6;
-	scmd->dir = UB_DIR_READ;
-	scmd->state = UB_CMDST_INIT;
-	scmd->nsg = 1;
-	sg = &scmd->sgv[0];
-	sg_init_table(sg, UB_MAX_REQ_SG);
-	sg_set_page(sg, virt_to_page(sc->top_sense), UB_SENSE_SIZE,
-			(unsigned long)sc->top_sense & (PAGE_SIZE-1));
-	scmd->len = UB_SENSE_SIZE;
-	scmd->lun = cmd->lun;
-	scmd->done = ub_top_sense_done;
-	scmd->back = cmd;
-
-	scmd->tag = sc->tagcnt++;
-
-	cmd->state = UB_CMDST_SENSE;
-
-	ub_cmdq_insert(sc, scmd);
-	return;
-
-error:
-	ub_state_done(sc, cmd, rc);
-}
-
-/*
- * A helper for the command's state machine:
- * Submit a stall clear.
- */
-static int ub_submit_clear_stall(struct ub_dev *sc, struct ub_scsi_cmd *cmd,
-    int stalled_pipe)
-{
-	int endp;
-	struct usb_ctrlrequest *cr;
-	int rc;
-
-	endp = usb_pipeendpoint(stalled_pipe);
-	if (usb_pipein (stalled_pipe))
-		endp |= USB_DIR_IN;
-
-	cr = &sc->work_cr;
-	cr->bRequestType = USB_RECIP_ENDPOINT;
-	cr->bRequest = USB_REQ_CLEAR_FEATURE;
-	cr->wValue = cpu_to_le16(USB_ENDPOINT_HALT);
-	cr->wIndex = cpu_to_le16(endp);
-	cr->wLength = cpu_to_le16(0);
-
-	UB_INIT_COMPLETION(sc->work_done);
-
-	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
-	    (unsigned char*) cr, NULL, 0, ub_urb_complete, sc);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
-		ub_complete(&sc->work_done);
-		return rc;
-	}
-
-	sc->work_timer.expires = jiffies + UB_CTRL_TIMEOUT;
-	add_timer(&sc->work_timer);
-	return 0;
-}
-
-/*
- */
-static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd)
-{
-	unsigned char *sense = sc->top_sense;
-	struct ub_scsi_cmd *cmd;
-
-	/*
-	 * Find the command which triggered the unit attention or a check,
-	 * save the sense into it, and advance its state machine.
-	 */
-	if ((cmd = ub_cmdq_peek(sc)) == NULL) {
-		printk(KERN_WARNING "%s: sense done while idle\n", sc->name);
-		return;
-	}
-	if (cmd != scmd->back) {
-		printk(KERN_WARNING "%s: "
-		    "sense done for wrong command 0x%x\n",
-		    sc->name, cmd->tag);
-		return;
-	}
-	if (cmd->state != UB_CMDST_SENSE) {
-		printk(KERN_WARNING "%s: sense done with bad cmd state %d\n",
-		    sc->name, cmd->state);
-		return;
-	}
-
-	/*
-	 * Ignoring scmd->act_len, because the buffer was pre-zeroed.
-	 */
-	cmd->key = sense[2] & 0x0F;
-	cmd->asc = sense[12];
-	cmd->ascq = sense[13];
-
-	ub_scsi_urb_compl(sc, cmd);
-}
-
-/*
- * Reset management
- */
-
-static void ub_reset_enter(struct ub_dev *sc, int try)
-{
-
-	if (sc->reset) {
-		/* This happens often on multi-LUN devices. */
-		return;
-	}
-	sc->reset = try + 1;
-
-#if 0 /* Not needed because the disconnect waits for us. */
-	unsigned long flags;
-	spin_lock_irqsave(&ub_lock, flags);
-	sc->openc++;
-	spin_unlock_irqrestore(&ub_lock, flags);
-#endif
-
-#if 0 /* We let them stop themselves. */
-	struct ub_lun *lun;
-	list_for_each_entry(lun, &sc->luns, link) {
-		blk_stop_queue(lun->disk->queue);
-	}
-#endif
-
-	schedule_work(&sc->reset_work);
-}
-
-static void ub_reset_task(struct work_struct *work)
-{
-	struct ub_dev *sc = container_of(work, struct ub_dev, reset_work);
-	unsigned long flags;
-	struct ub_lun *lun;
-	int rc;
-
-	if (!sc->reset) {
-		printk(KERN_WARNING "%s: Running reset unrequested\n",
-		    sc->name);
-		return;
-	}
-
-	if (atomic_read(&sc->poison)) {
-		;
-	} else if ((sc->reset & 1) == 0) {
-		ub_sync_reset(sc);
-		msleep(700);	/* usb-storage sleeps 6s (!) */
-		ub_probe_clear_stall(sc, sc->recv_bulk_pipe);
-		ub_probe_clear_stall(sc, sc->send_bulk_pipe);
-	} else if (sc->dev->actconfig->desc.bNumInterfaces != 1) {
-		;
-	} else {
-		rc = usb_lock_device_for_reset(sc->dev, sc->intf);
-		if (rc < 0) {
-			printk(KERN_NOTICE
-			    "%s: usb_lock_device_for_reset failed (%d)\n",
-			    sc->name, rc);
-		} else {
-			rc = usb_reset_device(sc->dev);
-			if (rc < 0) {
-				printk(KERN_NOTICE "%s: "
-				    "usb_lock_device_for_reset failed (%d)\n",
-				    sc->name, rc);
-			}
-			usb_unlock_device(sc->dev);
-		}
-	}
-
-	/*
-	 * In theory, no commands can be running while reset is active,
-	 * so nobody can ask for another reset, and so we do not need any
-	 * queues of resets or anything. We do need a spinlock though,
-	 * to interact with block layer.
-	 */
-	spin_lock_irqsave(sc->lock, flags);
-	sc->reset = 0;
-	tasklet_schedule(&sc->tasklet);
-	list_for_each_entry(lun, &sc->luns, link) {
-		blk_start_queue(lun->disk->queue);
-	}
-	wake_up(&sc->reset_wait);
-	spin_unlock_irqrestore(sc->lock, flags);
-}
-
-/*
- * XXX Reset brackets are too much hassle to implement, so just stub them
- * in order to prevent forced unbinding (which deadlocks solid when our
- * ->disconnect method waits for the reset to complete and this kills keventd).
- *
- * XXX Tell Alan to move usb_unlock_device inside of usb_reset_device,
- * or else the post_reset is invoked, and restats I/O on a locked device.
- */
-static int ub_pre_reset(struct usb_interface *iface) {
-	return 0;
-}
-
-static int ub_post_reset(struct usb_interface *iface) {
-	return 0;
-}
-
-/*
- * This is called from a process context.
- */
-static void ub_revalidate(struct ub_dev *sc, struct ub_lun *lun)
-{
-
-	lun->readonly = 0;	/* XXX Query this from the device */
-
-	lun->capacity.nsec = 0;
-	lun->capacity.bsize = 512;
-	lun->capacity.bshift = 0;
-
-	if (ub_sync_tur(sc, lun) != 0)
-		return;			/* Not ready */
-	lun->changed = 0;
-
-	if (ub_sync_read_cap(sc, lun, &lun->capacity) != 0) {
-		/*
-		 * The retry here means something is wrong, either with the
-		 * device, with the transport, or with our code.
-		 * We keep this because sd.c has retries for capacity.
-		 */
-		if (ub_sync_read_cap(sc, lun, &lun->capacity) != 0) {
-			lun->capacity.nsec = 0;
-			lun->capacity.bsize = 512;
-			lun->capacity.bshift = 0;
-		}
-	}
-}
-
-/*
- * The open funcion.
- * This is mostly needed to keep refcounting, but also to support
- * media checks on removable media drives.
- */
-static int ub_bd_open(struct block_device *bdev, fmode_t mode)
-{
-	struct ub_lun *lun = bdev->bd_disk->private_data;
-	struct ub_dev *sc = lun->udev;
-	unsigned long flags;
-	int rc;
-
-	spin_lock_irqsave(&ub_lock, flags);
-	if (atomic_read(&sc->poison)) {
-		spin_unlock_irqrestore(&ub_lock, flags);
-		return -ENXIO;
-	}
-	sc->openc++;
-	spin_unlock_irqrestore(&ub_lock, flags);
-
-	if (lun->removable || lun->readonly)
-		check_disk_change(bdev);
-
-	/*
-	 * The sd.c considers ->media_present and ->changed not equivalent,
-	 * under some pretty murky conditions (a failure of READ CAPACITY).
-	 * We may need it one day.
-	 */
-	if (lun->removable && lun->changed && !(mode & FMODE_NDELAY)) {
-		rc = -ENOMEDIUM;
-		goto err_open;
-	}
-
-	if (lun->readonly && (mode & FMODE_WRITE)) {
-		rc = -EROFS;
-		goto err_open;
-	}
-
-	return 0;
-
-err_open:
-	ub_put(sc);
-	return rc;
-}
-
-static int ub_bd_unlocked_open(struct block_device *bdev, fmode_t mode)
-{
-	int ret;
-
-	mutex_lock(&ub_mutex);
-	ret = ub_bd_open(bdev, mode);
-	mutex_unlock(&ub_mutex);
-
-	return ret;
-}
-
-
-/*
- */
-static int ub_bd_release(struct gendisk *disk, fmode_t mode)
-{
-	struct ub_lun *lun = disk->private_data;
-	struct ub_dev *sc = lun->udev;
-
-	mutex_lock(&ub_mutex);
-	ub_put(sc);
-	mutex_unlock(&ub_mutex);
-
-	return 0;
-}
-
-/*
- * The ioctl interface.
- */
-static int ub_bd_ioctl(struct block_device *bdev, fmode_t mode,
-    unsigned int cmd, unsigned long arg)
-{
-	void __user *usermem = (void __user *) arg;
-	int ret;
-
-	mutex_lock(&ub_mutex);
-	ret = scsi_cmd_blk_ioctl(bdev, mode, cmd, usermem);
-	mutex_unlock(&ub_mutex);
-
-	return ret;
-}
-
-/*
- * This is called by check_disk_change if we reported a media change.
- * The main onjective here is to discover the features of the media such as
- * the capacity, read-only status, etc. USB storage generally does not
- * need to be spun up, but if we needed it, this would be the place.
- *
- * This call can sleep.
- *
- * The return code is not used.
- */
-static int ub_bd_revalidate(struct gendisk *disk)
-{
-	struct ub_lun *lun = disk->private_data;
-
-	ub_revalidate(lun->udev, lun);
-
-	/* XXX Support sector size switching like in sr.c */
-	blk_queue_logical_block_size(disk->queue, lun->capacity.bsize);
-	set_capacity(disk, lun->capacity.nsec);
-	// set_disk_ro(sdkp->disk, lun->readonly);
-
-	return 0;
-}
-
-/*
- * The check is called by the block layer to verify if the media
- * is still available. It is supposed to be harmless, lightweight and
- * non-intrusive in case the media was not changed.
- *
- * This call can sleep.
- *
- * The return code is bool!
- */
-static unsigned int ub_bd_check_events(struct gendisk *disk,
-				       unsigned int clearing)
-{
-	struct ub_lun *lun = disk->private_data;
-
-	if (!lun->removable)
-		return 0;
-
-	/*
-	 * We clean checks always after every command, so this is not
-	 * as dangerous as it looks. If the TEST_UNIT_READY fails here,
-	 * the device is actually not ready with operator or software
-	 * intervention required. One dangerous item might be a drive which
-	 * spins itself down, and come the time to write dirty pages, this
-	 * will fail, then block layer discards the data. Since we never
-	 * spin drives up, such devices simply cannot be used with ub anyway.
-	 */
-	if (ub_sync_tur(lun->udev, lun) != 0) {
-		lun->changed = 1;
-		return DISK_EVENT_MEDIA_CHANGE;
-	}
-
-	return lun->changed ? DISK_EVENT_MEDIA_CHANGE : 0;
-}
-
-static const struct block_device_operations ub_bd_fops = {
-	.owner		= THIS_MODULE,
-	.open		= ub_bd_unlocked_open,
-	.release	= ub_bd_release,
-	.ioctl		= ub_bd_ioctl,
-	.check_events	= ub_bd_check_events,
-	.revalidate_disk = ub_bd_revalidate,
-};
-
-/*
- * Common ->done routine for commands executed synchronously.
- */
-static void ub_probe_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
-{
-	struct completion *cop = cmd->back;
-	complete(cop);
-}
-
-/*
- * Test if the device has a check condition on it, synchronously.
- */
-static int ub_sync_tur(struct ub_dev *sc, struct ub_lun *lun)
-{
-	struct ub_scsi_cmd *cmd;
-	enum { ALLOC_SIZE = sizeof(struct ub_scsi_cmd) };
-	unsigned long flags;
-	struct completion compl;
-	int rc;
-
-	init_completion(&compl);
-
-	rc = -ENOMEM;
-	if ((cmd = kzalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL)
-		goto err_alloc;
-
-	cmd->cdb[0] = TEST_UNIT_READY;
-	cmd->cdb_len = 6;
-	cmd->dir = UB_DIR_NONE;
-	cmd->state = UB_CMDST_INIT;
-	cmd->lun = lun;			/* This may be NULL, but that's ok */
-	cmd->done = ub_probe_done;
-	cmd->back = &compl;
-
-	spin_lock_irqsave(sc->lock, flags);
-	cmd->tag = sc->tagcnt++;
-
-	rc = ub_submit_scsi(sc, cmd);
-	spin_unlock_irqrestore(sc->lock, flags);
-
-	if (rc != 0)
-		goto err_submit;
-
-	wait_for_completion(&compl);
-
-	rc = cmd->error;
-
-	if (rc == -EIO && cmd->key != 0)	/* Retries for benh's key */
-		rc = cmd->key;
-
-err_submit:
-	kfree(cmd);
-err_alloc:
-	return rc;
-}
-
-/*
- * Read the SCSI capacity synchronously (for probing).
- */
-static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun,
-    struct ub_capacity *ret)
-{
-	struct ub_scsi_cmd *cmd;
-	struct scatterlist *sg;
-	char *p;
-	enum { ALLOC_SIZE = sizeof(struct ub_scsi_cmd) + 8 };
-	unsigned long flags;
-	unsigned int bsize, shift;
-	unsigned long nsec;
-	struct completion compl;
-	int rc;
-
-	init_completion(&compl);
-
-	rc = -ENOMEM;
-	if ((cmd = kzalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL)
-		goto err_alloc;
-	p = (char *)cmd + sizeof(struct ub_scsi_cmd);
-
-	cmd->cdb[0] = 0x25;
-	cmd->cdb_len = 10;
-	cmd->dir = UB_DIR_READ;
-	cmd->state = UB_CMDST_INIT;
-	cmd->nsg = 1;
-	sg = &cmd->sgv[0];
-	sg_init_table(sg, UB_MAX_REQ_SG);
-	sg_set_page(sg, virt_to_page(p), 8, (unsigned long)p & (PAGE_SIZE-1));
-	cmd->len = 8;
-	cmd->lun = lun;
-	cmd->done = ub_probe_done;
-	cmd->back = &compl;
-
-	spin_lock_irqsave(sc->lock, flags);
-	cmd->tag = sc->tagcnt++;
-
-	rc = ub_submit_scsi(sc, cmd);
-	spin_unlock_irqrestore(sc->lock, flags);
-
-	if (rc != 0)
-		goto err_submit;
-
-	wait_for_completion(&compl);
-
-	if (cmd->error != 0) {
-		rc = -EIO;
-		goto err_read;
-	}
-	if (cmd->act_len != 8) {
-		rc = -EIO;
-		goto err_read;
-	}
-
-	/* sd.c special-cases sector size of 0 to mean 512. Needed? Safe? */
-	nsec = be32_to_cpu(*(__be32 *)p) + 1;
-	bsize = be32_to_cpu(*(__be32 *)(p + 4));
-	switch (bsize) {
-	case 512:	shift = 0;	break;
-	case 1024:	shift = 1;	break;
-	case 2048:	shift = 2;	break;
-	case 4096:	shift = 3;	break;
-	default:
-		rc = -EDOM;
-		goto err_inv_bsize;
-	}
-
-	ret->bsize = bsize;
-	ret->bshift = shift;
-	ret->nsec = nsec << shift;
-	rc = 0;
-
-err_inv_bsize:
-err_read:
-err_submit:
-	kfree(cmd);
-err_alloc:
-	return rc;
-}
-
-/*
- */
-static void ub_probe_urb_complete(struct urb *urb)
-{
-	struct completion *cop = urb->context;
-	complete(cop);
-}
-
-static void ub_probe_timeout(unsigned long arg)
-{
-	struct completion *cop = (struct completion *) arg;
-	complete(cop);
-}
-
-/*
- * Reset with a Bulk reset.
- */
-static int ub_sync_reset(struct ub_dev *sc)
-{
-	int ifnum = sc->intf->cur_altsetting->desc.bInterfaceNumber;
-	struct usb_ctrlrequest *cr;
-	struct completion compl;
-	struct timer_list timer;
-	int rc;
-
-	init_completion(&compl);
-
-	cr = &sc->work_cr;
-	cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE;
-	cr->bRequest = US_BULK_RESET_REQUEST;
-	cr->wValue = cpu_to_le16(0);
-	cr->wIndex = cpu_to_le16(ifnum);
-	cr->wLength = cpu_to_le16(0);
-
-	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
-	    (unsigned char*) cr, NULL, 0, ub_probe_urb_complete, &compl);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0) {
-		printk(KERN_WARNING
-		     "%s: Unable to submit a bulk reset (%d)\n", sc->name, rc);
-		return rc;
-	}
-
-	init_timer(&timer);
-	timer.function = ub_probe_timeout;
-	timer.data = (unsigned long) &compl;
-	timer.expires = jiffies + UB_CTRL_TIMEOUT;
-	add_timer(&timer);
-
-	wait_for_completion(&compl);
-
-	del_timer_sync(&timer);
-	usb_kill_urb(&sc->work_urb);
-
-	return sc->work_urb.status;
-}
-
-/*
- * Get number of LUNs by the way of Bulk GetMaxLUN command.
- */
-static int ub_sync_getmaxlun(struct ub_dev *sc)
-{
-	int ifnum = sc->intf->cur_altsetting->desc.bInterfaceNumber;
-	unsigned char *p;
-	enum { ALLOC_SIZE = 1 };
-	struct usb_ctrlrequest *cr;
-	struct completion compl;
-	struct timer_list timer;
-	int nluns;
-	int rc;
-
-	init_completion(&compl);
-
-	rc = -ENOMEM;
-	if ((p = kmalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL)
-		goto err_alloc;
-	*p = 55;
-
-	cr = &sc->work_cr;
-	cr->bRequestType = USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
-	cr->bRequest = US_BULK_GET_MAX_LUN;
-	cr->wValue = cpu_to_le16(0);
-	cr->wIndex = cpu_to_le16(ifnum);
-	cr->wLength = cpu_to_le16(1);
-
-	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->recv_ctrl_pipe,
-	    (unsigned char*) cr, p, 1, ub_probe_urb_complete, &compl);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0)
-		goto err_submit;
-
-	init_timer(&timer);
-	timer.function = ub_probe_timeout;
-	timer.data = (unsigned long) &compl;
-	timer.expires = jiffies + UB_CTRL_TIMEOUT;
-	add_timer(&timer);
-
-	wait_for_completion(&compl);
-
-	del_timer_sync(&timer);
-	usb_kill_urb(&sc->work_urb);
-
-	if ((rc = sc->work_urb.status) < 0)
-		goto err_io;
-
-	if (sc->work_urb.actual_length != 1) {
-		nluns = 0;
-	} else {
-		if ((nluns = *p) == 55) {
-			nluns = 0;
-		} else {
-  			/* GetMaxLUN returns the maximum LUN number */
-			nluns += 1;
-			if (nluns > UB_MAX_LUNS)
-				nluns = UB_MAX_LUNS;
-		}
-	}
-
-	kfree(p);
-	return nluns;
-
-err_io:
-err_submit:
-	kfree(p);
-err_alloc:
-	return rc;
-}
-
-/*
- * Clear initial stalls.
- */
-static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
-{
-	int endp;
-	struct usb_ctrlrequest *cr;
-	struct completion compl;
-	struct timer_list timer;
-	int rc;
-
-	init_completion(&compl);
-
-	endp = usb_pipeendpoint(stalled_pipe);
-	if (usb_pipein (stalled_pipe))
-		endp |= USB_DIR_IN;
-
-	cr = &sc->work_cr;
-	cr->bRequestType = USB_RECIP_ENDPOINT;
-	cr->bRequest = USB_REQ_CLEAR_FEATURE;
-	cr->wValue = cpu_to_le16(USB_ENDPOINT_HALT);
-	cr->wIndex = cpu_to_le16(endp);
-	cr->wLength = cpu_to_le16(0);
-
-	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
-	    (unsigned char*) cr, NULL, 0, ub_probe_urb_complete, &compl);
-
-	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0) {
-		printk(KERN_WARNING
-		     "%s: Unable to submit a probe clear (%d)\n", sc->name, rc);
-		return rc;
-	}
-
-	init_timer(&timer);
-	timer.function = ub_probe_timeout;
-	timer.data = (unsigned long) &compl;
-	timer.expires = jiffies + UB_CTRL_TIMEOUT;
-	add_timer(&timer);
-
-	wait_for_completion(&compl);
-
-	del_timer_sync(&timer);
-	usb_kill_urb(&sc->work_urb);
-
-	usb_reset_endpoint(sc->dev, endp);
-
-	return 0;
-}
-
-/*
- * Get the pipe settings.
- */
-static int ub_get_pipes(struct ub_dev *sc, struct usb_device *dev,
-    struct usb_interface *intf)
-{
-	struct usb_host_interface *altsetting = intf->cur_altsetting;
-	struct usb_endpoint_descriptor *ep_in = NULL;
-	struct usb_endpoint_descriptor *ep_out = NULL;
-	struct usb_endpoint_descriptor *ep;
-	int i;
-
-	/*
-	 * Find the endpoints we need.
-	 * We are expecting a minimum of 2 endpoints - in and out (bulk).
-	 * We will ignore any others.
-	 */
-	for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
-		ep = &altsetting->endpoint[i].desc;
-
-		/* Is it a BULK endpoint? */
-		if (usb_endpoint_xfer_bulk(ep)) {
-			/* BULK in or out? */
-			if (usb_endpoint_dir_in(ep)) {
-				if (ep_in == NULL)
-					ep_in = ep;
-			} else {
-				if (ep_out == NULL)
-					ep_out = ep;
-			}
-		}
-	}
-
-	if (ep_in == NULL || ep_out == NULL) {
-		printk(KERN_NOTICE "%s: failed endpoint check\n", sc->name);
-		return -ENODEV;
-	}
-
-	/* Calculate and store the pipe values */
-	sc->send_ctrl_pipe = usb_sndctrlpipe(dev, 0);
-	sc->recv_ctrl_pipe = usb_rcvctrlpipe(dev, 0);
-	sc->send_bulk_pipe = usb_sndbulkpipe(dev,
-		usb_endpoint_num(ep_out));
-	sc->recv_bulk_pipe = usb_rcvbulkpipe(dev, 
-		usb_endpoint_num(ep_in));
-
-	return 0;
-}
-
-/*
- * Probing is done in the process context, which allows us to cheat
- * and not to build a state machine for the discovery.
- */
-static int ub_probe(struct usb_interface *intf,
-    const struct usb_device_id *dev_id)
-{
-	struct ub_dev *sc;
-	int nluns;
-	int rc;
-	int i;
-
-	if (usb_usual_check_type(dev_id, USB_US_TYPE_UB))
-		return -ENXIO;
-
-	rc = -ENOMEM;
-	if ((sc = kzalloc(sizeof(struct ub_dev), GFP_KERNEL)) == NULL)
-		goto err_core;
-	sc->lock = ub_next_lock();
-	INIT_LIST_HEAD(&sc->luns);
-	usb_init_urb(&sc->work_urb);
-	tasklet_init(&sc->tasklet, ub_scsi_action, (unsigned long)sc);
-	atomic_set(&sc->poison, 0);
-	INIT_WORK(&sc->reset_work, ub_reset_task);
-	init_waitqueue_head(&sc->reset_wait);
-
-	init_timer(&sc->work_timer);
-	sc->work_timer.data = (unsigned long) sc;
-	sc->work_timer.function = ub_urb_timeout;
-
-	ub_init_completion(&sc->work_done);
-	sc->work_done.done = 1;		/* A little yuk, but oh well... */
-
-	sc->dev = interface_to_usbdev(intf);
-	sc->intf = intf;
-	// sc->ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
-	usb_set_intfdata(intf, sc);
-	usb_get_dev(sc->dev);
-	/*
-	 * Since we give the interface struct to the block level through
-	 * disk->driverfs_dev, we have to pin it. Otherwise, block_uevent
-	 * oopses on close after a disconnect (kernels 2.6.16 and up).
-	 */
-	usb_get_intf(sc->intf);
-
-	snprintf(sc->name, 12, DRV_NAME "(%d.%d)",
-	    sc->dev->bus->busnum, sc->dev->devnum);
-
-	/* XXX Verify that we can handle the device (from descriptors) */
-
-	if (ub_get_pipes(sc, sc->dev, intf) != 0)
-		goto err_dev_desc;
-
-	/*
-	 * At this point, all USB initialization is done, do upper layer.
-	 * We really hate halfway initialized structures, so from the
-	 * invariants perspective, this ub_dev is fully constructed at
-	 * this point.
-	 */
-
-	/*
-	 * This is needed to clear toggles. It is a problem only if we do
-	 * `rmmod ub && modprobe ub` without disconnects, but we like that.
-	 */
-#if 0 /* iPod Mini fails if we do this (big white iPod works) */
-	ub_probe_clear_stall(sc, sc->recv_bulk_pipe);
-	ub_probe_clear_stall(sc, sc->send_bulk_pipe);
-#endif
-
-	/*
-	 * The way this is used by the startup code is a little specific.
-	 * A SCSI check causes a USB stall. Our common case code sees it
-	 * and clears the check, after which the device is ready for use.
-	 * But if a check was not present, any command other than
-	 * TEST_UNIT_READY ends with a lockup (including REQUEST_SENSE).
-	 *
-	 * If we neglect to clear the SCSI check, the first real command fails
-	 * (which is the capacity readout). We clear that and retry, but why
-	 * causing spurious retries for no reason.
-	 *
-	 * Revalidation may start with its own TEST_UNIT_READY, but that one
-	 * has to succeed, so we clear checks with an additional one here.
-	 * In any case it's not our business how revaliadation is implemented.
-	 */
-	for (i = 0; i < 3; i++) {  /* Retries for the schwag key from KS'04 */
-		if ((rc = ub_sync_tur(sc, NULL)) <= 0) break;
-		if (rc != 0x6) break;
-		msleep(10);
-	}
-
-	nluns = 1;
-	for (i = 0; i < 3; i++) {
-		if ((rc = ub_sync_getmaxlun(sc)) < 0)
-			break;
-		if (rc != 0) {
-			nluns = rc;
-			break;
-		}
-		msleep(100);
-	}
-
-	for (i = 0; i < nluns; i++) {
-		ub_probe_lun(sc, i);
-	}
-	return 0;
-
-err_dev_desc:
-	usb_set_intfdata(intf, NULL);
-	usb_put_intf(sc->intf);
-	usb_put_dev(sc->dev);
-	kfree(sc);
-err_core:
-	return rc;
-}
-
-static int ub_probe_lun(struct ub_dev *sc, int lnum)
-{
-	struct ub_lun *lun;
-	struct request_queue *q;
-	struct gendisk *disk;
-	int rc;
-
-	rc = -ENOMEM;
-	if ((lun = kzalloc(sizeof(struct ub_lun), GFP_KERNEL)) == NULL)
-		goto err_alloc;
-	lun->num = lnum;
-
-	rc = -ENOSR;
-	if ((lun->id = ub_id_get()) == -1)
-		goto err_id;
-
-	lun->udev = sc;
-
-	snprintf(lun->name, 16, DRV_NAME "%c(%d.%d.%d)",
-	    lun->id + 'a', sc->dev->bus->busnum, sc->dev->devnum, lun->num);
-
-	lun->removable = 1;		/* XXX Query this from the device */
-	lun->changed = 1;		/* ub_revalidate clears only */
-	ub_revalidate(sc, lun);
-
-	rc = -ENOMEM;
-	if ((disk = alloc_disk(UB_PARTS_PER_LUN)) == NULL)
-		goto err_diskalloc;
-
-	sprintf(disk->disk_name, DRV_NAME "%c", lun->id + 'a');
-	disk->major = UB_MAJOR;
-	disk->first_minor = lun->id * UB_PARTS_PER_LUN;
-	disk->fops = &ub_bd_fops;
-	disk->private_data = lun;
-	disk->driverfs_dev = &sc->intf->dev;
-
-	rc = -ENOMEM;
-	if ((q = blk_init_queue(ub_request_fn, sc->lock)) == NULL)
-		goto err_blkqinit;
-
-	disk->queue = q;
-
-	blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
-	blk_queue_max_segments(q, UB_MAX_REQ_SG);
-	blk_queue_segment_boundary(q, 0xffffffff);	/* Dubious. */
-	blk_queue_max_hw_sectors(q, UB_MAX_SECTORS);
-	blk_queue_logical_block_size(q, lun->capacity.bsize);
-
-	lun->disk = disk;
-	q->queuedata = lun;
-	list_add(&lun->link, &sc->luns);
-
-	set_capacity(disk, lun->capacity.nsec);
-	if (lun->removable)
-		disk->flags |= GENHD_FL_REMOVABLE;
-
-	add_disk(disk);
-
-	return 0;
-
-err_blkqinit:
-	put_disk(disk);
-err_diskalloc:
-	ub_id_put(lun->id);
-err_id:
-	kfree(lun);
-err_alloc:
-	return rc;
-}
-
-static void ub_disconnect(struct usb_interface *intf)
-{
-	struct ub_dev *sc = usb_get_intfdata(intf);
-	struct ub_lun *lun;
-	unsigned long flags;
-
-	/*
-	 * Prevent ub_bd_release from pulling the rug from under us.
-	 * XXX This is starting to look like a kref.
-	 * XXX Why not to take this ref at probe time?
-	 */
-	spin_lock_irqsave(&ub_lock, flags);
-	sc->openc++;
-	spin_unlock_irqrestore(&ub_lock, flags);
-
-	/*
-	 * Fence stall clearings, operations triggered by unlinkings and so on.
-	 * We do not attempt to unlink any URBs, because we do not trust the
-	 * unlink paths in HC drivers. Also, we get -84 upon disconnect anyway.
-	 */
-	atomic_set(&sc->poison, 1);
-
-	/*
-	 * Wait for reset to end, if any.
-	 */
-	wait_event(sc->reset_wait, !sc->reset);
-
-	/*
-	 * Blow away queued commands.
-	 *
-	 * Actually, this never works, because before we get here
-	 * the HCD terminates outstanding URB(s). It causes our
-	 * SCSI command queue to advance, commands fail to submit,
-	 * and the whole queue drains. So, we just use this code to
-	 * print warnings.
-	 */
-	spin_lock_irqsave(sc->lock, flags);
-	{
-		struct ub_scsi_cmd *cmd;
-		int cnt = 0;
-		while ((cmd = ub_cmdq_peek(sc)) != NULL) {
-			cmd->error = -ENOTCONN;
-			cmd->state = UB_CMDST_DONE;
-			ub_cmdq_pop(sc);
-			(*cmd->done)(sc, cmd);
-			cnt++;
-		}
-		if (cnt != 0) {
-			printk(KERN_WARNING "%s: "
-			    "%d was queued after shutdown\n", sc->name, cnt);
-		}
-	}
-	spin_unlock_irqrestore(sc->lock, flags);
-
-	/*
-	 * Unregister the upper layer.
-	 */
-	list_for_each_entry(lun, &sc->luns, link) {
-		del_gendisk(lun->disk);
-		/*
-		 * I wish I could do:
-		 *    queue_flag_set(QUEUE_FLAG_DEAD, q);
-		 * As it is, we rely on our internal poisoning and let
-		 * the upper levels to spin furiously failing all the I/O.
-		 */
-	}
-
-	/*
-	 * Testing for -EINPROGRESS is always a bug, so we are bending
-	 * the rules a little.
-	 */
-	spin_lock_irqsave(sc->lock, flags);
-	if (sc->work_urb.status == -EINPROGRESS) {	/* janitors: ignore */
-		printk(KERN_WARNING "%s: "
-		    "URB is active after disconnect\n", sc->name);
-	}
-	spin_unlock_irqrestore(sc->lock, flags);
-
-	/*
-	 * There is virtually no chance that other CPU runs a timeout so long
-	 * after ub_urb_complete should have called del_timer, but only if HCD
-	 * didn't forget to deliver a callback on unlink.
-	 */
-	del_timer_sync(&sc->work_timer);
-
-	/*
-	 * At this point there must be no commands coming from anyone
-	 * and no URBs left in transit.
-	 */
-
-	ub_put(sc);
-}
-
-static struct usb_driver ub_driver = {
-	.name =		"ub",
-	.probe =	ub_probe,
-	.disconnect =	ub_disconnect,
-	.id_table =	ub_usb_ids,
-	.pre_reset =	ub_pre_reset,
-	.post_reset =	ub_post_reset,
-};
-
-static int __init ub_init(void)
-{
-	int rc;
-	int i;
-
-	pr_info("'Low Performance USB Block' driver is deprecated. "
-			"Please switch to usb-storage\n");
-	for (i = 0; i < UB_QLOCK_NUM; i++)
-		spin_lock_init(&ub_qlockv[i]);
-
-	if ((rc = register_blkdev(UB_MAJOR, DRV_NAME)) != 0)
-		goto err_regblkdev;
-
-	if ((rc = usb_register(&ub_driver)) != 0)
-		goto err_register;
-
-	usb_usual_set_present(USB_US_TYPE_UB);
-	return 0;
-
-err_register:
-	unregister_blkdev(UB_MAJOR, DRV_NAME);
-err_regblkdev:
-	return rc;
-}
-
-static void __exit ub_exit(void)
-{
-	usb_deregister(&ub_driver);
-
-	unregister_blkdev(UB_MAJOR, DRV_NAME);
-	usb_usual_clear_present(USB_US_TYPE_UB);
-}
-
-module_init(ub_init);
-module_exit(ub_exit);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 73f196ca713..c6decb901e5 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -337,7 +337,7 @@ static void xen_blkbk_unmap(struct pending_req *req)
 		invcount++;
 	}
 
-	ret = gnttab_unmap_refs(unmap, pages, invcount, false);
+	ret = gnttab_unmap_refs(unmap, NULL, pages, invcount);
 	BUG_ON(ret);
 }
 
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2c2d2e5c159..007db8986e8 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -670,7 +670,7 @@ static void xlvbd_release_gendisk(struct blkfront_info *info)
 	spin_unlock_irqrestore(&info->io_lock, flags);
 
 	/* Flush gnttab callback work. Must be done with no locks held. */
-	flush_work_sync(&info->work);
+	flush_work(&info->work);
 
 	del_gendisk(info->gd);
 
@@ -719,7 +719,7 @@ static void blkif_free(struct blkfront_info *info, int suspend)
 	spin_unlock_irq(&info->io_lock);
 
 	/* Flush gnttab callback work. Must be done with no locks held. */
-	flush_work_sync(&info->work);
+	flush_work(&info->work);
 
 	/* Free resources associated with old device channel. */
 	if (info->ring_ref != GRANT_INVALID_REF) {
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 10308cd8a7e..fc2de5528dc 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -79,12 +79,14 @@ static struct usb_device_id ath3k_table[] = {
 	{ USB_DEVICE(0x13d3, 0x3362) },
 	{ USB_DEVICE(0x0CF3, 0xE004) },
 	{ USB_DEVICE(0x0930, 0x0219) },
+	{ USB_DEVICE(0x0489, 0xe057) },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE02C) },
 
 	/* Atheros AR5BBU22 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE03C) },
+	{ USB_DEVICE(0x0489, 0xE036) },
 
 	{ }	/* Terminating entry */
 };
@@ -104,9 +106,11 @@ static struct usb_device_id ath3k_blist_tbl[] = {
 	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU22 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 
 	{ }	/* Terminating entry */
 };
diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c
index 37ae175162f..364f82b34d0 100644
--- a/drivers/bluetooth/bcm203x.c
+++ b/drivers/bluetooth/bcm203x.c
@@ -177,7 +177,7 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id
 	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 		return -ENODEV;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
 	if (!data) {
 		BT_ERR("Can't allocate memory for data structure");
 		return -ENOMEM;
@@ -189,14 +189,12 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id
 	data->urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!data->urb) {
 		BT_ERR("Can't allocate URB");
-		kfree(data);
 		return -ENOMEM;
 	}
 
 	if (request_firmware(&firmware, "BCM2033-MD.hex", &udev->dev) < 0) {
 		BT_ERR("Mini driver request failed");
 		usb_free_urb(data->urb);
-		kfree(data);
 		return -EIO;
 	}
 
@@ -209,7 +207,6 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id
 		BT_ERR("Can't allocate memory for mini driver");
 		release_firmware(firmware);
 		usb_free_urb(data->urb);
-		kfree(data);
 		return -ENOMEM;
 	}
 
@@ -224,7 +221,6 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id
 		BT_ERR("Firmware request failed");
 		usb_free_urb(data->urb);
 		kfree(data->buffer);
-		kfree(data);
 		return -EIO;
 	}
 
@@ -236,7 +232,6 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id
 		release_firmware(firmware);
 		usb_free_urb(data->urb);
 		kfree(data->buffer);
-		kfree(data);
 		return -ENOMEM;
 	}
 
@@ -271,7 +266,6 @@ static void bcm203x_disconnect(struct usb_interface *intf)
 	usb_free_urb(data->urb);
 	kfree(data->fw_data);
 	kfree(data->buffer);
-	kfree(data);
 }
 
 static struct usb_driver bcm203x_driver = {
diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 32e825144fe..995aee9cba2 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -653,7 +653,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 	}
 
 	/* Initialize control structure and load firmware */
-	data = kzalloc(sizeof(struct bfusb_data), GFP_KERNEL);
+	data = devm_kzalloc(&intf->dev, sizeof(struct bfusb_data), GFP_KERNEL);
 	if (!data) {
 		BT_ERR("Can't allocate memory for control structure");
 		goto done;
@@ -674,7 +674,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 
 	if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
 		BT_ERR("Firmware request failed");
-		goto error;
+		goto done;
 	}
 
 	BT_DBG("firmware data %p size %zu", firmware->data, firmware->size);
@@ -690,7 +690,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 	hdev = hci_alloc_dev();
 	if (!hdev) {
 		BT_ERR("Can't allocate HCI device");
-		goto error;
+		goto done;
 	}
 
 	data->hdev = hdev;
@@ -708,7 +708,7 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 	if (hci_register_dev(hdev) < 0) {
 		BT_ERR("Can't register HCI device");
 		hci_free_dev(hdev);
-		goto error;
+		goto done;
 	}
 
 	usb_set_intfdata(intf, data);
@@ -718,9 +718,6 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 release:
 	release_firmware(firmware);
 
-error:
-	kfree(data);
-
 done:
 	return -EIO;
 }
@@ -741,7 +738,6 @@ static void bfusb_disconnect(struct usb_interface *intf)
 
 	hci_unregister_dev(hdev);
 	hci_free_dev(hdev);
-	kfree(data);
 }
 
 static struct usb_driver bfusb_driver = {
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index 66c3a6770c4..0d26851d6e4 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -681,7 +681,7 @@ static int bluecard_hci_send_frame(struct sk_buff *skb)
 	case HCI_SCODATA_PKT:
 		hdev->stat.sco_tx++;
 		break;
-	};
+	}
 
 	/* Prepend skb with frame type */
 	memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
@@ -849,7 +849,7 @@ static int bluecard_probe(struct pcmcia_device *link)
 	bluecard_info_t *info;
 
 	/* Create new info device */
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -864,10 +864,7 @@ static int bluecard_probe(struct pcmcia_device *link)
 
 static void bluecard_detach(struct pcmcia_device *link)
 {
-	bluecard_info_t *info = link->priv;
-
 	bluecard_release(link);
-	kfree(info);
 }
 
 
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 29caaed2d71..2fe4a803134 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -443,7 +443,7 @@ static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *
 	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 		return -ENODEV;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -453,10 +453,8 @@ static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *
 	init_usb_anchor(&data->rx_anchor);
 
 	hdev = hci_alloc_dev();
-	if (!hdev) {
-		kfree(data);
+	if (!hdev)
 		return -ENOMEM;
-	}
 
 	hdev->bus = HCI_USB;
 	hci_set_drvdata(hdev, data);
@@ -475,7 +473,6 @@ static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *
 	err = hci_register_dev(hdev);
 	if (err < 0) {
 		hci_free_dev(hdev);
-		kfree(data);
 		return err;
 	}
 
@@ -500,7 +497,6 @@ static void bpa10x_disconnect(struct usb_interface *intf)
 	hci_free_dev(data->hdev);
 	kfree_skb(data->rx_skb[0]);
 	kfree_skb(data->rx_skb[1]);
-	kfree(data);
 }
 
 static struct usb_driver bpa10x_driver = {
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index 8925b6d672a..7ffd3f40714 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -638,7 +638,7 @@ static int bt3c_probe(struct pcmcia_device *link)
 	bt3c_info_t *info;
 
 	/* Create new info device */
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -654,10 +654,7 @@ static int bt3c_probe(struct pcmcia_device *link)
 
 static void bt3c_detach(struct pcmcia_device *link)
 {
-	bt3c_info_t *info = link->priv;
-
 	bt3c_release(link);
-	kfree(info);
 }
 
 static int bt3c_check_config(struct pcmcia_device *p_dev, void *priv_data)
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 6a9e9717d3a..3f4bfc814dc 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -600,8 +600,7 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
 exit:
 	if (ret) {
 		hdev->stat.err_rx++;
-		if (skb)
-			kfree_skb(skb);
+		kfree_skb(skb);
 	}
 
 	return ret;
@@ -956,11 +955,9 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 	BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
 			id->vendor, id->device, id->class, func->num);
 
-	card = kzalloc(sizeof(*card), GFP_KERNEL);
-	if (!card) {
-		ret = -ENOMEM;
-		goto done;
-	}
+	card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
 
 	card->func = func;
 
@@ -974,8 +971,7 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 
 	if (btmrvl_sdio_register_dev(card) < 0) {
 		BT_ERR("Failed to register BT device!");
-		ret = -ENODEV;
-		goto free_card;
+		return -ENODEV;
 	}
 
 	/* Disable the interrupts on the card */
@@ -1023,9 +1019,6 @@ disable_host_int:
 	btmrvl_sdio_disable_host_int(card);
 unreg_dev:
 	btmrvl_sdio_unregister_dev(card);
-free_card:
-	kfree(card);
-done:
 	return ret;
 }
 
@@ -1047,7 +1040,6 @@ static void btmrvl_sdio_remove(struct sdio_func *func)
 			BT_DBG("unregester dev");
 			btmrvl_sdio_unregister_dev(card);
 			btmrvl_remove_card(card->priv);
-			kfree(card);
 		}
 	}
 }
diff --git a/drivers/bluetooth/btsdio.c b/drivers/bluetooth/btsdio.c
index e10ea034705..4a990971387 100644
--- a/drivers/bluetooth/btsdio.c
+++ b/drivers/bluetooth/btsdio.c
@@ -304,7 +304,7 @@ static int btsdio_probe(struct sdio_func *func,
 		tuple = tuple->next;
 	}
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(&func->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -315,10 +315,8 @@ static int btsdio_probe(struct sdio_func *func,
 	skb_queue_head_init(&data->txq);
 
 	hdev = hci_alloc_dev();
-	if (!hdev) {
-		kfree(data);
+	if (!hdev)
 		return -ENOMEM;
-	}
 
 	hdev->bus = HCI_SDIO;
 	hci_set_drvdata(hdev, data);
@@ -340,7 +338,6 @@ static int btsdio_probe(struct sdio_func *func,
 	err = hci_register_dev(hdev);
 	if (err < 0) {
 		hci_free_dev(hdev);
-		kfree(data);
 		return err;
 	}
 
@@ -366,7 +363,6 @@ static void btsdio_remove(struct sdio_func *func)
 	hci_unregister_dev(hdev);
 
 	hci_free_dev(hdev);
-	kfree(data);
 }
 
 static struct sdio_driver btsdio_driver = {
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index 21e803a6a28..35a553a9061 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -446,7 +446,7 @@ static int btuart_hci_send_frame(struct sk_buff *skb)
 	case HCI_SCODATA_PKT:
 		hdev->stat.sco_tx++;
 		break;
-	};
+	}
 
 	/* Prepend skb with frame type */
 	memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
@@ -567,7 +567,7 @@ static int btuart_probe(struct pcmcia_device *link)
 	btuart_info_t *info;
 
 	/* Create new info device */
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -583,10 +583,7 @@ static int btuart_probe(struct pcmcia_device *link)
 
 static void btuart_detach(struct pcmcia_device *link)
 {
-	btuart_info_t *info = link->priv;
-
 	btuart_release(link);
-	kfree(info);
 }
 
 static int btuart_check_config(struct pcmcia_device *p_dev, void *priv_data)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e2722141103..debda27df9b 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -52,6 +52,9 @@ static struct usb_device_id btusb_table[] = {
 	/* Generic Bluetooth USB device */
 	{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
 
+	/* Apple-specific (Broadcom) devices */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
+
 	/* Broadcom SoftSailing reporting vendor specific */
 	{ USB_DEVICE(0x0a5c, 0x21e1) },
 
@@ -93,15 +96,15 @@ static struct usb_device_id btusb_table[] = {
 	{ USB_DEVICE(0x0c10, 0x0000) },
 
 	/* Broadcom BCM20702A0 */
+	{ USB_DEVICE(0x04ca, 0x2003) },
 	{ USB_DEVICE(0x0489, 0xe042) },
-	{ USB_DEVICE(0x0a5c, 0x21e3) },
-	{ USB_DEVICE(0x0a5c, 0x21e6) },
-	{ USB_DEVICE(0x0a5c, 0x21e8) },
-	{ USB_DEVICE(0x0a5c, 0x21f3) },
 	{ USB_DEVICE(0x413c, 0x8197) },
 
 	/* Foxconn - Hon Hai */
-	{ USB_DEVICE(0x0489, 0xe033) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
+
+	/*Broadcom devices with vendor specific id */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 
 	{ }	/* Terminating entry */
 };
@@ -133,12 +136,14 @@ static struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 
 	/* Broadcom BCM2035 */
 	{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
@@ -952,7 +957,7 @@ static int btusb_probe(struct usb_interface *intf,
 			return -ENODEV;
 	}
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -975,10 +980,8 @@ static int btusb_probe(struct usb_interface *intf,
 		}
 	}
 
-	if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
-		kfree(data);
+	if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
 		return -ENODEV;
-	}
 
 	data->cmdreq_type = USB_TYPE_CLASS;
 
@@ -998,10 +1001,8 @@ static int btusb_probe(struct usb_interface *intf,
 	init_usb_anchor(&data->deferred);
 
 	hdev = hci_alloc_dev();
-	if (!hdev) {
-		kfree(data);
+	if (!hdev)
 		return -ENOMEM;
-	}
 
 	hdev->bus = HCI_USB;
 	hci_set_drvdata(hdev, data);
@@ -1069,7 +1070,6 @@ static int btusb_probe(struct usb_interface *intf,
 							data->isoc, data);
 		if (err < 0) {
 			hci_free_dev(hdev);
-			kfree(data);
 			return err;
 		}
 	}
@@ -1077,7 +1077,6 @@ static int btusb_probe(struct usb_interface *intf,
 	err = hci_register_dev(hdev);
 	if (err < 0) {
 		hci_free_dev(hdev);
-		kfree(data);
 		return err;
 	}
 
@@ -1110,7 +1109,6 @@ static void btusb_disconnect(struct usb_interface *intf)
 		usb_driver_release_interface(&btusb_driver, data->isoc);
 
 	hci_free_dev(hdev);
-	kfree(data);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 88694697f34..60abf596f60 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -297,16 +297,14 @@ static int bt_ti_probe(struct platform_device *pdev)
 	struct hci_dev *hdev;
 	int err;
 
-	hst = kzalloc(sizeof(struct ti_st), GFP_KERNEL);
+	hst = devm_kzalloc(&pdev->dev, sizeof(struct ti_st), GFP_KERNEL);
 	if (!hst)
 		return -ENOMEM;
 
 	/* Expose "hciX" device to user space */
 	hdev = hci_alloc_dev();
-	if (!hdev) {
-		kfree(hst);
+	if (!hdev)
 		return -ENOMEM;
-	}
 
 	BT_DBG("hdev %p", hdev);
 
@@ -321,7 +319,6 @@ static int bt_ti_probe(struct platform_device *pdev)
 	err = hci_register_dev(hdev);
 	if (err < 0) {
 		BT_ERR("Can't register HCI device error %d", err);
-		kfree(hst);
 		hci_free_dev(hdev);
 		return err;
 	}
@@ -347,7 +344,6 @@ static int bt_ti_remove(struct platform_device *pdev)
 	hci_unregister_dev(hdev);
 
 	hci_free_dev(hdev);
-	kfree(hst);
 
 	dev_set_drvdata(&pdev->dev, NULL);
 	return 0;
@@ -362,21 +358,7 @@ static struct platform_driver btwilink_driver = {
 	},
 };
 
-/* ------- Module Init/Exit interfaces ------ */
-static int __init btwilink_init(void)
-{
-	BT_INFO("Bluetooth Driver for TI WiLink - Version %s", VERSION);
-
-	return platform_driver_register(&btwilink_driver);
-}
-
-static void __exit btwilink_exit(void)
-{
-	platform_driver_unregister(&btwilink_driver);
-}
-
-module_init(btwilink_init);
-module_exit(btwilink_exit);
+module_platform_driver(btwilink_driver);
 
 /* ------ Module Info ------ */
 
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 97a7784db4a..036cb366fe6 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -550,7 +550,7 @@ static int dtl1_probe(struct pcmcia_device *link)
 	dtl1_info_t *info;
 
 	/* Create new info device */
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -569,7 +569,6 @@ static void dtl1_detach(struct pcmcia_device *link)
 
 	dtl1_close(info);
 	pcmcia_disable_device(link);
-	kfree(info);
 }
 
 static int dtl1_confcheck(struct pcmcia_device *p_dev, void *priv_data)
diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c
index 12172a6a95c..0bc8a6a6a14 100644
--- a/drivers/bluetooth/hci_ath.c
+++ b/drivers/bluetooth/hci_ath.c
@@ -58,7 +58,7 @@ static int ath_wakeup_ar3k(struct tty_struct *tty)
 		return status;
 
 	/* Disable Automatic RTSCTS */
-	memcpy(&ktermios, tty->termios, sizeof(ktermios));
+	ktermios = tty->termios;
 	ktermios.c_cflag &= ~CRTSCTS;
 	tty_set_termios(tty, &ktermios);
 
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 74e0966b3ea..c8abce3d2d9 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -531,7 +531,7 @@ static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file,
 	default:
 		err = n_tty_ioctl_helper(tty, file, cmd, arg);
 		break;
-	};
+	}
 
 	return err;
 }
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index ff6d589c34a..cfc76793858 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -481,7 +481,7 @@ static int ll_recv(struct hci_uart *hu, void *data, int count)
 			hu->hdev->stat.err_rx++;
 			ptr++; count--;
 			continue;
-		};
+		}
 
 		ptr++; count--;
 
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 3f72595a601..d8b7aed6e4a 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -156,7 +156,7 @@ static inline ssize_t vhci_put_user(struct vhci_data *data,
 	case HCI_SCODATA_PKT:
 		data->hdev->stat.sco_tx++;
 		break;
-	};
+	}
 
 	return total;
 }
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 00000000000..bbec35d21fe
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,21 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+	tristate "OMAP OCP2SCP DRIVER"
+	help
+	  Driver to enable ocp2scp module which transforms ocp interface
+	  protocol to scp protocol. In OMAP4, USB PHY is connected via
+	  OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+	  OCP2SCP.
+
+config OMAP_INTERCONNECT
+	tristate "OMAP INTERCONNECT DRIVER"
+	depends on ARCH_OMAP2PLUS
+
+	help
+	  Driver to enable OMAP interconnect error handling driver.
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 00000000000..45d997c8545
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
+
+# Interconnect bus driver for OMAP SoCs.
+obj-$(CONFIG_OMAP_INTERCONNECT)	+= omap_l3_smx.o omap_l3_noc.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 00000000000..ff63560b846
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,88 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	platform_device_unregister(pdev);
+
+	return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+	int			ret;
+	struct device_node	*np = pdev->dev.of_node;
+
+	if (np) {
+		ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
+			goto err0;
+		}
+	}
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err0:
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return ret;
+}
+
+static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_ocp2scp_id_table[] = {
+	{ .compatible = "ti,omap-ocp2scp" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, omap_ocp2scp_id_table);
+#endif
+
+static struct platform_driver omap_ocp2scp_driver = {
+	.probe		= omap_ocp2scp_probe,
+	.remove		= __devexit_p(omap_ocp2scp_remove),
+	.driver		= {
+		.name	= "omap-ocp2scp",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(omap_ocp2scp_id_table),
+	},
+};
+
+module_platform_driver(omap_ocp2scp_driver);
+
+MODULE_ALIAS("platform: omap-ocp2scp");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP OCP2SCP driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
new file mode 100644
index 00000000000..ab911a33f8a
--- /dev/null
+++ b/drivers/bus/omap_l3_noc.c
@@ -0,0 +1,266 @@
+/*
+ * OMAP4XXX L3 Interconnect error handling driver
+ *
+ * Copyright (C) 2011 Texas Corporation
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *	Sricharan <r.sricharan@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include "omap_l3_noc.h"
+
+/*
+ * Interrupt Handler for L3 error detection.
+ *	1) Identify the L3 clockdomain partition to which the error belongs to.
+ *	2) Identify the slave where the error information is logged
+ *	3) Print the logged information.
+ *	4) Add dump stack to provide kernel trace.
+ *
+ * Two Types of errors :
+ *	1) Custom errors in L3 :
+ *		Target like DMM/FW/EMIF generates SRESP=ERR error
+ *	2) Standard L3 error:
+ *		- Unsupported CMD.
+ *			L3 tries to access target while it is idle
+ *		- OCP disconnect.
+ *		- Address hole error:
+ *			If DSS/ISS/FDIF/USBHOSTFS access a target where they
+ *			do not have connectivity, the error is logged in
+ *			their default target which is DMM2.
+ *
+ *	On High Secure devices, firewall errors are possible and those
+ *	can be trapped as well. But the trapping is implemented as part
+ *	secure software and hence need not be implemented here.
+ */
+static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
+{
+
+	struct omap4_l3 *l3 = _l3;
+	int inttype, i, k;
+	int err_src = 0;
+	u32 std_err_main, err_reg, clear, masterid;
+	void __iomem *base, *l3_targ_base;
+	char *target_name, *master_name = "UN IDENTIFIED";
+
+	/* Get the Type of interrupt */
+	inttype = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
+
+	for (i = 0; i < L3_MODULES; i++) {
+		/*
+		 * Read the regerr register of the clock domain
+		 * to determine the source
+		 */
+		base = l3->l3_base[i];
+		err_reg = __raw_readl(base + l3_flagmux[i] +
+					+ L3_FLAGMUX_REGERR0 + (inttype << 3));
+
+		/* Get the corresponding error and analyse */
+		if (err_reg) {
+			/* Identify the source from control status register */
+			err_src = __ffs(err_reg);
+
+			/* Read the stderrlog_main_source from clk domain */
+			l3_targ_base = base + *(l3_targ[i] + err_src);
+			std_err_main =  __raw_readl(l3_targ_base +
+					L3_TARG_STDERRLOG_MAIN);
+			masterid = __raw_readl(l3_targ_base +
+					L3_TARG_STDERRLOG_MSTADDR);
+
+			switch (std_err_main & CUSTOM_ERROR) {
+			case STANDARD_ERROR:
+				target_name =
+					l3_targ_inst_name[i][err_src];
+				WARN(true, "L3 standard error: TARGET:%s at address 0x%x\n",
+					target_name,
+					__raw_readl(l3_targ_base +
+						L3_TARG_STDERRLOG_SLVOFSLSB));
+				/* clear the std error log*/
+				clear = std_err_main | CLEAR_STDERR_LOG;
+				writel(clear, l3_targ_base +
+					L3_TARG_STDERRLOG_MAIN);
+				break;
+
+			case CUSTOM_ERROR:
+				target_name =
+					l3_targ_inst_name[i][err_src];
+				for (k = 0; k < NUM_OF_L3_MASTERS; k++) {
+					if (masterid == l3_masters[k].id)
+						master_name =
+							l3_masters[k].name;
+				}
+				WARN(true, "L3 custom error: MASTER:%s TARGET:%s\n",
+					master_name, target_name);
+				/* clear the std error log*/
+				clear = std_err_main | CLEAR_STDERR_LOG;
+				writel(clear, l3_targ_base +
+					L3_TARG_STDERRLOG_MAIN);
+				break;
+
+			default:
+				/* Nothing to be handled here as of now */
+				break;
+			}
+		/* Error found so break the for loop */
+		break;
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+static int __devinit omap4_l3_probe(struct platform_device *pdev)
+{
+	static struct omap4_l3 *l3;
+	struct resource	*res;
+	int ret;
+
+	l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
+	if (!l3)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, l3);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "couldn't find resource 0\n");
+		ret = -ENODEV;
+		goto err0;
+	}
+
+	l3->l3_base[0] = ioremap(res->start, resource_size(res));
+	if (!l3->l3_base[0]) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -ENOMEM;
+		goto err0;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!res) {
+		dev_err(&pdev->dev, "couldn't find resource 1\n");
+		ret = -ENODEV;
+		goto err1;
+	}
+
+	l3->l3_base[1] = ioremap(res->start, resource_size(res));
+	if (!l3->l3_base[1]) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+	if (!res) {
+		dev_err(&pdev->dev, "couldn't find resource 2\n");
+		ret = -ENODEV;
+		goto err2;
+	}
+
+	l3->l3_base[2] = ioremap(res->start, resource_size(res));
+	if (!l3->l3_base[2]) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -ENOMEM;
+		goto err2;
+	}
+
+	/*
+	 * Setup interrupt Handlers
+	 */
+	l3->debug_irq = platform_get_irq(pdev, 0);
+	ret = request_irq(l3->debug_irq,
+			l3_interrupt_handler,
+			IRQF_DISABLED, "l3-dbg-irq", l3);
+	if (ret) {
+		pr_crit("L3: request_irq failed to register for 0x%x\n",
+						l3->debug_irq);
+		goto err3;
+	}
+
+	l3->app_irq = platform_get_irq(pdev, 1);
+	ret = request_irq(l3->app_irq,
+			l3_interrupt_handler,
+			IRQF_DISABLED, "l3-app-irq", l3);
+	if (ret) {
+		pr_crit("L3: request_irq failed to register for 0x%x\n",
+						l3->app_irq);
+		goto err4;
+	}
+
+	return 0;
+
+err4:
+	free_irq(l3->debug_irq, l3);
+err3:
+	iounmap(l3->l3_base[2]);
+err2:
+	iounmap(l3->l3_base[1]);
+err1:
+	iounmap(l3->l3_base[0]);
+err0:
+	kfree(l3);
+	return ret;
+}
+
+static int __devexit omap4_l3_remove(struct platform_device *pdev)
+{
+	struct omap4_l3 *l3 = platform_get_drvdata(pdev);
+
+	free_irq(l3->app_irq, l3);
+	free_irq(l3->debug_irq, l3);
+	iounmap(l3->l3_base[0]);
+	iounmap(l3->l3_base[1]);
+	iounmap(l3->l3_base[2]);
+	kfree(l3);
+
+	return 0;
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id l3_noc_match[] = {
+	{.compatible = "ti,omap4-l3-noc", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, l3_noc_match);
+#else
+#define l3_noc_match NULL
+#endif
+
+static struct platform_driver omap4_l3_driver = {
+	.probe		= omap4_l3_probe,
+	.remove		= __devexit_p(omap4_l3_remove),
+	.driver		= {
+		.name		= "omap_l3_noc",
+		.owner		= THIS_MODULE,
+		.of_match_table = l3_noc_match,
+	},
+};
+
+static int __init omap4_l3_init(void)
+{
+	return platform_driver_register(&omap4_l3_driver);
+}
+postcore_initcall_sync(omap4_l3_init);
+
+static void __exit omap4_l3_exit(void)
+{
+	platform_driver_unregister(&omap4_l3_driver);
+}
+module_exit(omap4_l3_exit);
diff --git a/drivers/bus/omap_l3_noc.h b/drivers/bus/omap_l3_noc.h
new file mode 100644
index 00000000000..a6ce34dc481
--- /dev/null
+++ b/drivers/bus/omap_l3_noc.h
@@ -0,0 +1,176 @@
+/*
+ * OMAP4XXX L3 Interconnect  error handling driver header
+ *
+ * Copyright (C) 2011 Texas Corporation
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *	sricharan <r.sricharan@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+#ifndef __ARCH_ARM_MACH_OMAP2_L3_INTERCONNECT_3XXX_H
+#define __ARCH_ARM_MACH_OMAP2_L3_INTERCONNECT_3XXX_H
+
+#define L3_MODULES			3
+#define CLEAR_STDERR_LOG		(1 << 31)
+#define CUSTOM_ERROR			0x2
+#define STANDARD_ERROR			0x0
+#define INBAND_ERROR			0x0
+#define L3_APPLICATION_ERROR		0x0
+#define L3_DEBUG_ERROR			0x1
+
+/* L3 TARG register offsets */
+#define L3_TARG_STDERRLOG_MAIN		0x48
+#define L3_TARG_STDERRLOG_SLVOFSLSB	0x5c
+#define L3_TARG_STDERRLOG_MSTADDR	0x68
+#define L3_FLAGMUX_REGERR0		0xc
+
+#define NUM_OF_L3_MASTERS	(sizeof(l3_masters)/sizeof(l3_masters[0]))
+
+static u32 l3_flagmux[L3_MODULES] = {
+	0x500,
+	0x1000,
+	0X0200
+};
+
+/* L3 Target standard Error register offsets */
+static u32 l3_targ_inst_clk1[] = {
+	0x100, /* DMM1 */
+	0x200, /* DMM2 */
+	0x300, /* ABE */
+	0x400, /* L4CFG */
+	0x600,  /* CLK2 PWR DISC */
+	0x0,	/* Host CLK1 */
+	0x900	/* L4 Wakeup */
+};
+
+static u32 l3_targ_inst_clk2[] = {
+	0x500, /* CORTEX M3 */
+	0x300, /* DSS */
+	0x100, /* GPMC */
+	0x400, /* ISS */
+	0x700, /* IVAHD */
+	0xD00, /* missing in TRM  corresponds to AES1*/
+	0x900, /* L4 PER0*/
+	0x200, /* OCMRAM */
+	0x100, /* missing in TRM corresponds to GPMC sERROR*/
+	0x600, /* SGX */
+	0x800, /* SL2 */
+	0x1600, /* C2C */
+	0x1100,	/* missing in TRM corresponds PWR DISC CLK1*/
+	0xF00, /* missing in TRM corrsponds to SHA1*/
+	0xE00, /* missing in TRM corresponds to AES2*/
+	0xC00, /* L4 PER3 */
+	0xA00, /* L4 PER1*/
+	0xB00, /* L4 PER2*/
+	0x0, /* HOST CLK2 */
+	0x1800, /* CAL */
+	0x1700 /* LLI */
+};
+
+static u32 l3_targ_inst_clk3[] = {
+	0x0100	/* EMUSS */,
+	0x0300, /* DEBUGSS_CT_TBR */
+	0x0 /* HOST CLK3 */
+};
+
+static struct l3_masters_data {
+	u32 id;
+	char name[10];
+} l3_masters[] = {
+	{ 0x0 , "MPU"},
+	{ 0x10, "CS_ADP"},
+	{ 0x14, "xxx"},
+	{ 0x20, "DSP"},
+	{ 0x30, "IVAHD"},
+	{ 0x40, "ISS"},
+	{ 0x44, "DucatiM3"},
+	{ 0x48, "FaceDetect"},
+	{ 0x50, "SDMA_Rd"},
+	{ 0x54, "SDMA_Wr"},
+	{ 0x58, "xxx"},
+	{ 0x5C, "xxx"},
+	{ 0x60, "SGX"},
+	{ 0x70, "DSS"},
+	{ 0x80, "C2C"},
+	{ 0x88, "xxx"},
+	{ 0x8C, "xxx"},
+	{ 0x90, "HSI"},
+	{ 0xA0, "MMC1"},
+	{ 0xA4, "MMC2"},
+	{ 0xA8, "MMC6"},
+	{ 0xB0, "UNIPRO1"},
+	{ 0xC0, "USBHOSTHS"},
+	{ 0xC4, "USBOTGHS"},
+	{ 0xC8, "USBHOSTFS"}
+};
+
+static char *l3_targ_inst_name[L3_MODULES][21] = {
+	{
+		"DMM1",
+		"DMM2",
+		"ABE",
+		"L4CFG",
+		"CLK2 PWR DISC",
+		"HOST CLK1",
+		"L4 WAKEUP"
+	},
+	{
+		"CORTEX M3" ,
+		"DSS ",
+		"GPMC ",
+		"ISS ",
+		"IVAHD ",
+		"AES1",
+		"L4 PER0",
+		"OCMRAM ",
+		"GPMC sERROR",
+		"SGX ",
+		"SL2 ",
+		"C2C ",
+		"PWR DISC CLK1",
+		"SHA1",
+		"AES2",
+		"L4 PER3",
+		"L4 PER1",
+		"L4 PER2",
+		"HOST CLK2",
+		"CAL",
+		"LLI"
+	},
+	{
+		"EMUSS",
+		"DEBUG SOURCE",
+		"HOST CLK3"
+	},
+};
+
+static u32 *l3_targ[L3_MODULES] = {
+	l3_targ_inst_clk1,
+	l3_targ_inst_clk2,
+	l3_targ_inst_clk3,
+};
+
+struct omap4_l3 {
+	struct device *dev;
+	struct clk *ick;
+
+	/* memory base */
+	void __iomem *l3_base[L3_MODULES];
+
+	int debug_irq;
+	int app_irq;
+};
+#endif
diff --git a/drivers/bus/omap_l3_smx.c b/drivers/bus/omap_l3_smx.c
new file mode 100644
index 00000000000..acc216491b8
--- /dev/null
+++ b/drivers/bus/omap_l3_smx.c
@@ -0,0 +1,297 @@
+/*
+ * OMAP3XXX L3 Interconnect Driver
+ *
+ * Copyright (C) 2011 Texas Corporation
+ *	Felipe Balbi <balbi@ti.com>
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *	Sricharan <r.sricharan@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include "omap_l3_smx.h"
+
+static inline u64 omap3_l3_readll(void __iomem *base, u16 reg)
+{
+	return __raw_readll(base + reg);
+}
+
+static inline void omap3_l3_writell(void __iomem *base, u16 reg, u64 value)
+{
+	__raw_writell(value, base + reg);
+}
+
+static inline enum omap3_l3_code omap3_l3_decode_error_code(u64 error)
+{
+	return (error & 0x0f000000) >> L3_ERROR_LOG_CODE;
+}
+
+static inline u32 omap3_l3_decode_addr(u64 error_addr)
+{
+	return error_addr & 0xffffffff;
+}
+
+static inline unsigned omap3_l3_decode_cmd(u64 error)
+{
+	return (error & 0x07) >> L3_ERROR_LOG_CMD;
+}
+
+static inline enum omap3_l3_initiator_id omap3_l3_decode_initid(u64 error)
+{
+	return (error & 0xff00) >> L3_ERROR_LOG_INITID;
+}
+
+static inline unsigned omap3_l3_decode_req_info(u64 error)
+{
+	return (error >> 32) & 0xffff;
+}
+
+static char *omap3_l3_code_string(u8 code)
+{
+	switch (code) {
+	case OMAP_L3_CODE_NOERROR:
+		return "No Error";
+	case OMAP_L3_CODE_UNSUP_CMD:
+		return "Unsupported Command";
+	case OMAP_L3_CODE_ADDR_HOLE:
+		return "Address Hole";
+	case OMAP_L3_CODE_PROTECT_VIOLATION:
+		return "Protection Violation";
+	case OMAP_L3_CODE_IN_BAND_ERR:
+		return "In-band Error";
+	case OMAP_L3_CODE_REQ_TOUT_NOT_ACCEPT:
+		return "Request Timeout Not Accepted";
+	case OMAP_L3_CODE_REQ_TOUT_NO_RESP:
+		return "Request Timeout, no response";
+	default:
+		return "UNKNOWN error";
+	}
+}
+
+static char *omap3_l3_initiator_string(u8 initid)
+{
+	switch (initid) {
+	case OMAP_L3_LCD:
+		return "LCD";
+	case OMAP_L3_SAD2D:
+		return "SAD2D";
+	case OMAP_L3_IA_MPU_SS_1:
+	case OMAP_L3_IA_MPU_SS_2:
+	case OMAP_L3_IA_MPU_SS_3:
+	case OMAP_L3_IA_MPU_SS_4:
+	case OMAP_L3_IA_MPU_SS_5:
+		return "MPU";
+	case OMAP_L3_IA_IVA_SS_1:
+	case OMAP_L3_IA_IVA_SS_2:
+	case OMAP_L3_IA_IVA_SS_3:
+		return "IVA_SS";
+	case OMAP_L3_IA_IVA_SS_DMA_1:
+	case OMAP_L3_IA_IVA_SS_DMA_2:
+	case OMAP_L3_IA_IVA_SS_DMA_3:
+	case OMAP_L3_IA_IVA_SS_DMA_4:
+	case OMAP_L3_IA_IVA_SS_DMA_5:
+	case OMAP_L3_IA_IVA_SS_DMA_6:
+		return "IVA_SS_DMA";
+	case OMAP_L3_IA_SGX:
+		return "SGX";
+	case OMAP_L3_IA_CAM_1:
+	case OMAP_L3_IA_CAM_2:
+	case OMAP_L3_IA_CAM_3:
+		return "CAM";
+	case OMAP_L3_IA_DAP:
+		return "DAP";
+	case OMAP_L3_SDMA_WR_1:
+	case OMAP_L3_SDMA_WR_2:
+		return "SDMA_WR";
+	case OMAP_L3_SDMA_RD_1:
+	case OMAP_L3_SDMA_RD_2:
+	case OMAP_L3_SDMA_RD_3:
+	case OMAP_L3_SDMA_RD_4:
+		return "SDMA_RD";
+	case OMAP_L3_USBOTG:
+		return "USB_OTG";
+	case OMAP_L3_USBHOST:
+		return "USB_HOST";
+	default:
+		return "UNKNOWN Initiator";
+	}
+}
+
+/*
+ * omap3_l3_block_irq - handles a register block's irq
+ * @l3: struct omap3_l3 *
+ * @base: register block base address
+ * @error: L3_ERROR_LOG register of our block
+ *
+ * Called in hard-irq context. Caller should take care of locking
+ *
+ * OMAP36xx TRM gives, on page 2001, Figure 9-10, the Typical Error
+ * Analysis Sequence, we are following that sequence here, please
+ * refer to that Figure for more information on the subject.
+ */
+static irqreturn_t omap3_l3_block_irq(struct omap3_l3 *l3,
+					u64 error, int error_addr)
+{
+	u8 code = omap3_l3_decode_error_code(error);
+	u8 initid = omap3_l3_decode_initid(error);
+	u8 multi = error & L3_ERROR_LOG_MULTI;
+	u32 address = omap3_l3_decode_addr(error_addr);
+
+	pr_err("%s seen by %s %s at address %x\n",
+			omap3_l3_code_string(code),
+			omap3_l3_initiator_string(initid),
+			multi ? "Multiple Errors" : "", address);
+	WARN_ON(1);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
+{
+	struct omap3_l3 *l3 = _l3;
+	u64 status, clear;
+	u64 error;
+	u64 error_addr;
+	u64 err_source = 0;
+	void __iomem *base;
+	int int_type;
+	irqreturn_t ret = IRQ_NONE;
+
+	int_type = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
+	if (!int_type) {
+		status = omap3_l3_readll(l3->rt, L3_SI_FLAG_STATUS_0);
+		/*
+		 * if we have a timeout error, there's nothing we can
+		 * do besides rebooting the board. So let's BUG on any
+		 * of such errors and handle the others. timeout error
+		 * is severe and not expected to occur.
+		 */
+		BUG_ON(status & L3_STATUS_0_TIMEOUT_MASK);
+	} else {
+		status = omap3_l3_readll(l3->rt, L3_SI_FLAG_STATUS_1);
+		/* No timeout error for debug sources */
+	}
+
+	/* identify the error source */
+	err_source = __ffs(status);
+
+	base = l3->rt + omap3_l3_bases[int_type][err_source];
+	error = omap3_l3_readll(base, L3_ERROR_LOG);
+	if (error) {
+		error_addr = omap3_l3_readll(base, L3_ERROR_LOG_ADDR);
+		ret |= omap3_l3_block_irq(l3, error, error_addr);
+	}
+
+	/* Clear the status register */
+	clear = (L3_AGENT_STATUS_CLEAR_IA << int_type) |
+		L3_AGENT_STATUS_CLEAR_TA;
+	omap3_l3_writell(base, L3_AGENT_STATUS, clear);
+
+	/* clear the error log register */
+	omap3_l3_writell(base, L3_ERROR_LOG, error);
+
+	return ret;
+}
+
+static int __init omap3_l3_probe(struct platform_device *pdev)
+{
+	struct omap3_l3 *l3;
+	struct resource *res;
+	int ret;
+
+	l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
+	if (!l3)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, l3);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "couldn't find resource\n");
+		ret = -ENODEV;
+		goto err0;
+	}
+	l3->rt = ioremap(res->start, resource_size(res));
+	if (!l3->rt) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -ENOMEM;
+		goto err0;
+	}
+
+	l3->debug_irq = platform_get_irq(pdev, 0);
+	ret = request_irq(l3->debug_irq, omap3_l3_app_irq,
+		IRQF_DISABLED | IRQF_TRIGGER_RISING,
+		"l3-debug-irq", l3);
+	if (ret) {
+		dev_err(&pdev->dev, "couldn't request debug irq\n");
+		goto err1;
+	}
+
+	l3->app_irq = platform_get_irq(pdev, 1);
+	ret = request_irq(l3->app_irq, omap3_l3_app_irq,
+		IRQF_DISABLED | IRQF_TRIGGER_RISING,
+		"l3-app-irq", l3);
+	if (ret) {
+		dev_err(&pdev->dev, "couldn't request app irq\n");
+		goto err2;
+	}
+
+	return 0;
+
+err2:
+	free_irq(l3->debug_irq, l3);
+err1:
+	iounmap(l3->rt);
+err0:
+	kfree(l3);
+	return ret;
+}
+
+static int __exit omap3_l3_remove(struct platform_device *pdev)
+{
+	struct omap3_l3         *l3 = platform_get_drvdata(pdev);
+
+	free_irq(l3->app_irq, l3);
+	free_irq(l3->debug_irq, l3);
+	iounmap(l3->rt);
+	kfree(l3);
+
+	return 0;
+}
+
+static struct platform_driver omap3_l3_driver = {
+	.remove         = __exit_p(omap3_l3_remove),
+	.driver         = {
+	.name   = "omap_l3_smx",
+	},
+};
+
+static int __init omap3_l3_init(void)
+{
+	return platform_driver_probe(&omap3_l3_driver, omap3_l3_probe);
+}
+postcore_initcall_sync(omap3_l3_init);
+
+static void __exit omap3_l3_exit(void)
+{
+	platform_driver_unregister(&omap3_l3_driver);
+}
+module_exit(omap3_l3_exit);
diff --git a/drivers/bus/omap_l3_smx.h b/drivers/bus/omap_l3_smx.h
new file mode 100644
index 00000000000..4f3cebca417
--- /dev/null
+++ b/drivers/bus/omap_l3_smx.h
@@ -0,0 +1,338 @@
+/*
+ * OMAP3XXX L3 Interconnect Driver header
+ *
+ * Copyright (C) 2011 Texas Corporation
+ *	Felipe Balbi <balbi@ti.com>
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *	sricharan <r.sricharan@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+#ifndef __ARCH_ARM_MACH_OMAP2_L3_INTERCONNECT_3XXX_H
+#define __ARCH_ARM_MACH_OMAP2_L3_INTERCONNECT_3XXX_H
+
+/* Register definitions. All 64-bit wide */
+#define L3_COMPONENT			0x000
+#define L3_CORE				0x018
+#define L3_AGENT_CONTROL		0x020
+#define L3_AGENT_STATUS			0x028
+#define L3_ERROR_LOG			0x058
+
+#define L3_ERROR_LOG_MULTI		(1 << 31)
+#define L3_ERROR_LOG_SECONDARY		(1 << 30)
+
+#define L3_ERROR_LOG_ADDR		0x060
+
+/* Register definitions for Sideband Interconnect */
+#define L3_SI_CONTROL			0x020
+#define L3_SI_FLAG_STATUS_0		0x510
+
+static const u64 shift = 1;
+
+#define L3_STATUS_0_MPUIA_BRST		(shift << 0)
+#define L3_STATUS_0_MPUIA_RSP		(shift << 1)
+#define L3_STATUS_0_MPUIA_INBAND	(shift << 2)
+#define L3_STATUS_0_IVAIA_BRST		(shift << 6)
+#define L3_STATUS_0_IVAIA_RSP		(shift << 7)
+#define L3_STATUS_0_IVAIA_INBAND	(shift << 8)
+#define L3_STATUS_0_SGXIA_BRST		(shift << 9)
+#define L3_STATUS_0_SGXIA_RSP		(shift << 10)
+#define L3_STATUS_0_SGXIA_MERROR	(shift << 11)
+#define L3_STATUS_0_CAMIA_BRST		(shift << 12)
+#define L3_STATUS_0_CAMIA_RSP		(shift << 13)
+#define L3_STATUS_0_CAMIA_INBAND	(shift << 14)
+#define L3_STATUS_0_DISPIA_BRST		(shift << 15)
+#define L3_STATUS_0_DISPIA_RSP		(shift << 16)
+#define L3_STATUS_0_DMARDIA_BRST	(shift << 18)
+#define L3_STATUS_0_DMARDIA_RSP		(shift << 19)
+#define L3_STATUS_0_DMAWRIA_BRST	(shift << 21)
+#define L3_STATUS_0_DMAWRIA_RSP		(shift << 22)
+#define L3_STATUS_0_USBOTGIA_BRST	(shift << 24)
+#define L3_STATUS_0_USBOTGIA_RSP	(shift << 25)
+#define L3_STATUS_0_USBOTGIA_INBAND	(shift << 26)
+#define L3_STATUS_0_USBHOSTIA_BRST	(shift << 27)
+#define L3_STATUS_0_USBHOSTIA_INBAND	(shift << 28)
+#define L3_STATUS_0_SMSTA_REQ		(shift << 48)
+#define L3_STATUS_0_GPMCTA_REQ		(shift << 49)
+#define L3_STATUS_0_OCMRAMTA_REQ	(shift << 50)
+#define L3_STATUS_0_OCMROMTA_REQ	(shift << 51)
+#define L3_STATUS_0_IVATA_REQ		(shift << 54)
+#define L3_STATUS_0_SGXTA_REQ		(shift << 55)
+#define L3_STATUS_0_SGXTA_SERROR	(shift << 56)
+#define L3_STATUS_0_GPMCTA_SERROR	(shift << 57)
+#define L3_STATUS_0_L4CORETA_REQ	(shift << 58)
+#define L3_STATUS_0_L4PERTA_REQ		(shift << 59)
+#define L3_STATUS_0_L4EMUTA_REQ		(shift << 60)
+#define L3_STATUS_0_MAD2DTA_REQ		(shift << 61)
+
+#define L3_STATUS_0_TIMEOUT_MASK	(L3_STATUS_0_MPUIA_BRST		\
+					| L3_STATUS_0_MPUIA_RSP		\
+					| L3_STATUS_0_IVAIA_BRST	\
+					| L3_STATUS_0_IVAIA_RSP		\
+					| L3_STATUS_0_SGXIA_BRST	\
+					| L3_STATUS_0_SGXIA_RSP		\
+					| L3_STATUS_0_CAMIA_BRST	\
+					| L3_STATUS_0_CAMIA_RSP		\
+					| L3_STATUS_0_DISPIA_BRST	\
+					| L3_STATUS_0_DISPIA_RSP	\
+					| L3_STATUS_0_DMARDIA_BRST	\
+					| L3_STATUS_0_DMARDIA_RSP	\
+					| L3_STATUS_0_DMAWRIA_BRST	\
+					| L3_STATUS_0_DMAWRIA_RSP	\
+					| L3_STATUS_0_USBOTGIA_BRST	\
+					| L3_STATUS_0_USBOTGIA_RSP	\
+					| L3_STATUS_0_USBHOSTIA_BRST	\
+					| L3_STATUS_0_SMSTA_REQ		\
+					| L3_STATUS_0_GPMCTA_REQ	\
+					| L3_STATUS_0_OCMRAMTA_REQ	\
+					| L3_STATUS_0_OCMROMTA_REQ	\
+					| L3_STATUS_0_IVATA_REQ		\
+					| L3_STATUS_0_SGXTA_REQ		\
+					| L3_STATUS_0_L4CORETA_REQ	\
+					| L3_STATUS_0_L4PERTA_REQ	\
+					| L3_STATUS_0_L4EMUTA_REQ	\
+					| L3_STATUS_0_MAD2DTA_REQ)
+
+#define L3_SI_FLAG_STATUS_1		0x530
+
+#define L3_STATUS_1_MPU_DATAIA		(1 << 0)
+#define L3_STATUS_1_DAPIA0		(1 << 3)
+#define L3_STATUS_1_DAPIA1		(1 << 4)
+#define L3_STATUS_1_IVAIA		(1 << 6)
+
+#define L3_PM_ERROR_LOG			0x020
+#define L3_PM_CONTROL			0x028
+#define L3_PM_ERROR_CLEAR_SINGLE	0x030
+#define L3_PM_ERROR_CLEAR_MULTI		0x038
+#define L3_PM_REQ_INFO_PERMISSION(n)	(0x048 + (0x020 * n))
+#define L3_PM_READ_PERMISSION(n)	(0x050 + (0x020 * n))
+#define L3_PM_WRITE_PERMISSION(n)	(0x058 + (0x020 * n))
+#define L3_PM_ADDR_MATCH(n)		(0x060 + (0x020 * n))
+
+/* L3 error log bit fields. Common for IA and TA */
+#define L3_ERROR_LOG_CODE		24
+#define L3_ERROR_LOG_INITID		8
+#define L3_ERROR_LOG_CMD		0
+
+/* L3 agent status bit fields. */
+#define L3_AGENT_STATUS_CLEAR_IA	0x10000000
+#define L3_AGENT_STATUS_CLEAR_TA	0x01000000
+
+#define OMAP34xx_IRQ_L3_APP		10
+#define L3_APPLICATION_ERROR		0x0
+#define L3_DEBUG_ERROR			0x1
+
+enum omap3_l3_initiator_id {
+	/* LCD has 1 ID */
+	OMAP_L3_LCD = 29,
+	/* SAD2D has 1 ID */
+	OMAP_L3_SAD2D = 28,
+	/* MPU has 5 IDs */
+	OMAP_L3_IA_MPU_SS_1 = 27,
+	OMAP_L3_IA_MPU_SS_2 = 26,
+	OMAP_L3_IA_MPU_SS_3 = 25,
+	OMAP_L3_IA_MPU_SS_4 = 24,
+	OMAP_L3_IA_MPU_SS_5 = 23,
+	/* IVA2.2 SS has 3 IDs*/
+	OMAP_L3_IA_IVA_SS_1 = 22,
+	OMAP_L3_IA_IVA_SS_2 = 21,
+	OMAP_L3_IA_IVA_SS_3 = 20,
+	/* IVA 2.2 SS DMA has 6 IDS */
+	OMAP_L3_IA_IVA_SS_DMA_1 = 19,
+	OMAP_L3_IA_IVA_SS_DMA_2 = 18,
+	OMAP_L3_IA_IVA_SS_DMA_3 = 17,
+	OMAP_L3_IA_IVA_SS_DMA_4 = 16,
+	OMAP_L3_IA_IVA_SS_DMA_5 = 15,
+	OMAP_L3_IA_IVA_SS_DMA_6 = 14,
+	/* SGX has 1 ID */
+	OMAP_L3_IA_SGX = 13,
+	/* CAM has 3 ID */
+	OMAP_L3_IA_CAM_1 = 12,
+	OMAP_L3_IA_CAM_2 = 11,
+	OMAP_L3_IA_CAM_3 = 10,
+	/* DAP has 1 ID */
+	OMAP_L3_IA_DAP = 9,
+	/* SDMA WR has 2 IDs */
+	OMAP_L3_SDMA_WR_1 = 8,
+	OMAP_L3_SDMA_WR_2 = 7,
+	/* SDMA RD has 4 IDs */
+	OMAP_L3_SDMA_RD_1 = 6,
+	OMAP_L3_SDMA_RD_2 = 5,
+	OMAP_L3_SDMA_RD_3 = 4,
+	OMAP_L3_SDMA_RD_4 = 3,
+	/* HSUSB OTG has 1 ID */
+	OMAP_L3_USBOTG = 2,
+	/* HSUSB HOST has 1 ID */
+	OMAP_L3_USBHOST = 1,
+};
+
+enum omap3_l3_code {
+	OMAP_L3_CODE_NOERROR = 0,
+	OMAP_L3_CODE_UNSUP_CMD = 1,
+	OMAP_L3_CODE_ADDR_HOLE = 2,
+	OMAP_L3_CODE_PROTECT_VIOLATION = 3,
+	OMAP_L3_CODE_IN_BAND_ERR = 4,
+	/* codes 5 and 6 are reserved */
+	OMAP_L3_CODE_REQ_TOUT_NOT_ACCEPT = 7,
+	OMAP_L3_CODE_REQ_TOUT_NO_RESP = 8,
+	/* codes 9 - 15 are also reserved */
+};
+
+struct omap3_l3 {
+	struct device *dev;
+	struct clk *ick;
+
+	/* memory base*/
+	void __iomem *rt;
+
+	int debug_irq;
+	int app_irq;
+
+	/* true when and inband functional error occurs */
+	unsigned inband:1;
+};
+
+/* offsets for l3 agents in order with the Flag status register */
+static unsigned int omap3_l3_app_bases[] = {
+	/* MPU IA */
+	0x1400,
+	0x1400,
+	0x1400,
+	/* RESERVED */
+	0,
+	0,
+	0,
+	/* IVA 2.2 IA */
+	0x1800,
+	0x1800,
+	0x1800,
+	/* SGX IA */
+	0x1c00,
+	0x1c00,
+	/* RESERVED */
+	0,
+	/* CAMERA IA */
+	0x5800,
+	0x5800,
+	0x5800,
+	/* DISPLAY IA */
+	0x5400,
+	0x5400,
+	/* RESERVED */
+	0,
+	/*SDMA RD IA */
+	0x4c00,
+	0x4c00,
+	/* RESERVED */
+	0,
+	/* SDMA WR IA */
+	0x5000,
+	0x5000,
+	/* RESERVED */
+	0,
+	/* USB OTG IA */
+	0x4400,
+	0x4400,
+	0x4400,
+	/* USB HOST IA */
+	0x4000,
+	0x4000,
+	/* RESERVED */
+	0,
+	0,
+	0,
+	0,
+	/* SAD2D IA */
+	0x3000,
+	0x3000,
+	0x3000,
+	/* RESERVED */
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	0,
+	/* SMA TA */
+	0x2000,
+	/* GPMC TA */
+	0x2400,
+	/* OCM RAM TA */
+	0x2800,
+	/* OCM ROM TA */
+	0x2C00,
+	/* L4 CORE TA */
+	0x6800,
+	/* L4 PER TA */
+	0x6c00,
+	/* IVA 2.2 TA */
+	0x6000,
+	/* SGX TA */
+	0x6400,
+	/* L4 EMU TA */
+	0x7000,
+	/* GPMC TA */
+	0x2400,
+	/* L4 CORE TA */
+	0x6800,
+	/* L4 PER TA */
+	0x6c00,
+	/* L4 EMU TA */
+	0x7000,
+	/* MAD2D TA */
+	0x3400,
+	/* RESERVED */
+	0,
+	0,
+};
+
+static unsigned int omap3_l3_debug_bases[] = {
+	/* MPU DATA IA */
+	0x1400,
+	/* RESERVED */
+	0,
+	0,
+	/* DAP IA */
+	0x5c00,
+	0x5c00,
+	/* RESERVED */
+	0,
+	/* IVA 2.2 IA */
+	0x1800,
+	/* REST RESERVED */
+};
+
+static u32 *omap3_l3_bases[] = {
+	omap3_l3_app_bases,
+	omap3_l3_debug_bases,
+};
+
+/*
+ * REVISIT define __raw_readll/__raw_writell here, but move them to
+ * <asm/io.h> at some point
+ */
+#define __raw_writell(v, a)	(__chk_io_ptr(a), \
+				*(volatile u64 __force *)(a) = (v))
+#define __raw_readll(a)		(__chk_io_ptr(a), \
+				*(volatile u64 __force *)(a))
+
+#endif
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 3ceaf006e7f..75d485afe56 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -840,7 +840,7 @@ probe_fail_no_mem:
 
 static int __devexit remove_gdrom(struct platform_device *devptr)
 {
-	flush_work_sync(&work);
+	flush_work(&work);
 	blk_cleanup_queue(gd.gdrom_rq);
 	free_irq(HW_EVENT_GDROM_CMD, &gd);
 	free_irq(HW_EVENT_GDROM_DMA, &gd);
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index ea6f6325f9b..72bedad6bf8 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -418,8 +418,8 @@ config APPLICOM
 	  If unsure, say N.
 
 config SONYPI
-	tristate "Sony Vaio Programmable I/O Control Device support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && X86 && PCI && INPUT && !64BIT
+	tristate "Sony Vaio Programmable I/O Control Device support"
+	depends on X86 && PCI && INPUT && !64BIT
 	---help---
 	  This driver enables access to the Sony Programmable I/O Control
 	  Device which can be found in many (all ?) Sony Vaio laptops.
@@ -566,7 +566,7 @@ source "drivers/char/tpm/Kconfig"
 
 config TELCLOCK
 	tristate "Telecom clock driver for ATCA SBC"
-	depends on EXPERIMENTAL && X86
+	depends on X86
 	default n
 	help
 	  The telecom clock device is specific to the MPCBL0010 and MPCBL0050
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index 57226424690..6ec0fff79bc 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -64,6 +64,7 @@
 #define I830_PTE_SYSTEM_CACHED  0x00000006
 /* GT PTE cache control fields */
 #define GEN6_PTE_UNCACHED	0x00000002
+#define HSW_PTE_UNCACHED	0x00000000
 #define GEN6_PTE_LLC		0x00000004
 #define GEN6_PTE_LLC_MLC	0x00000006
 #define GEN6_PTE_GFDT		0x00000008
@@ -239,16 +240,45 @@
 #define PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT2_IG		0x016A
 #define PCI_DEVICE_ID_INTEL_VALLEYVIEW_HB		0x0F00 /* VLV1 */
 #define PCI_DEVICE_ID_INTEL_VALLEYVIEW_IG		0x0F30
-#define PCI_DEVICE_ID_INTEL_HASWELL_HB				0x0400 /* Desktop */
+#define PCI_DEVICE_ID_INTEL_HASWELL_HB			0x0400 /* Desktop */
 #define PCI_DEVICE_ID_INTEL_HASWELL_D_GT1_IG		0x0402
 #define PCI_DEVICE_ID_INTEL_HASWELL_D_GT2_IG		0x0412
-#define PCI_DEVICE_ID_INTEL_HASWELL_M_HB			0x0404 /* Mobile */
+#define PCI_DEVICE_ID_INTEL_HASWELL_D_GT2_PLUS_IG	0x0422
+#define PCI_DEVICE_ID_INTEL_HASWELL_M_HB		0x0404 /* Mobile */
 #define PCI_DEVICE_ID_INTEL_HASWELL_M_GT1_IG		0x0406
 #define PCI_DEVICE_ID_INTEL_HASWELL_M_GT2_IG		0x0416
-#define PCI_DEVICE_ID_INTEL_HASWELL_S_HB			0x0408 /* Server */
+#define PCI_DEVICE_ID_INTEL_HASWELL_M_GT2_PLUS_IG	0x0426
+#define PCI_DEVICE_ID_INTEL_HASWELL_S_HB		0x0408 /* Server */
 #define PCI_DEVICE_ID_INTEL_HASWELL_S_GT1_IG		0x040a
 #define PCI_DEVICE_ID_INTEL_HASWELL_S_GT2_IG		0x041a
-#define PCI_DEVICE_ID_INTEL_HASWELL_SDV		0x0c16 /* SDV */
-#define PCI_DEVICE_ID_INTEL_HASWELL_E_HB			0x0c04
+#define PCI_DEVICE_ID_INTEL_HASWELL_S_GT2_PLUS_IG	0x042a
+#define PCI_DEVICE_ID_INTEL_HASWELL_E_HB		0x0c04
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_D_GT1_IG	0x0C02
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_D_GT2_IG	0x0C12
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_D_GT2_PLUS_IG	0x0C22
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_M_GT1_IG	0x0C06
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_M_GT2_IG	0x0C16
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_M_GT2_PLUS_IG	0x0C26
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_S_GT1_IG	0x0C0A
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_S_GT2_IG	0x0C1A
+#define PCI_DEVICE_ID_INTEL_HASWELL_SDV_S_GT2_PLUS_IG	0x0C2A
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_D_GT1_IG	0x0A02
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_D_GT2_IG	0x0A12
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_D_GT2_PLUS_IG	0x0A22
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_M_GT1_IG	0x0A06
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_M_GT2_IG	0x0A16
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_M_GT2_PLUS_IG	0x0A26
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_S_GT1_IG	0x0A0A
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_S_GT2_IG	0x0A1A
+#define PCI_DEVICE_ID_INTEL_HASWELL_ULT_S_GT2_PLUS_IG	0x0A2A
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_D_GT1_IG	0x0D12
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_D_GT2_IG	0x0D22
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_D_GT2_PLUS_IG	0x0D32
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_M_GT1_IG	0x0D16
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_M_GT2_IG	0x0D26
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_M_GT2_PLUS_IG	0x0D36
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_S_GT1_IG	0x0D1A
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_S_GT2_IG	0x0D2A
+#define PCI_DEVICE_ID_INTEL_HASWELL_CRW_S_GT2_PLUS_IG	0x0D3A
 
 #endif
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9ed92ef5829..58e32f7c322 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1156,6 +1156,30 @@ static bool gen6_check_flags(unsigned int flags)
 	return true;
 }
 
+static void haswell_write_entry(dma_addr_t addr, unsigned int entry,
+				unsigned int flags)
+{
+	unsigned int type_mask = flags & ~AGP_USER_CACHED_MEMORY_GFDT;
+	unsigned int gfdt = flags & AGP_USER_CACHED_MEMORY_GFDT;
+	u32 pte_flags;
+
+	if (type_mask == AGP_USER_MEMORY)
+		pte_flags = HSW_PTE_UNCACHED | I810_PTE_VALID;
+	else if (type_mask == AGP_USER_CACHED_MEMORY_LLC_MLC) {
+		pte_flags = GEN6_PTE_LLC_MLC | I810_PTE_VALID;
+		if (gfdt)
+			pte_flags |= GEN6_PTE_GFDT;
+	} else { /* set 'normal'/'cached' to LLC by default */
+		pte_flags = GEN6_PTE_LLC | I810_PTE_VALID;
+		if (gfdt)
+			pte_flags |= GEN6_PTE_GFDT;
+	}
+
+	/* gen6 has bit11-4 for physical addr bit39-32 */
+	addr |= (addr >> 28) & 0xff0;
+	writel(addr | pte_flags, intel_private.gtt + entry);
+}
+
 static void gen6_write_entry(dma_addr_t addr, unsigned int entry,
 			     unsigned int flags)
 {
@@ -1382,6 +1406,15 @@ static const struct intel_gtt_driver sandybridge_gtt_driver = {
 	.check_flags = gen6_check_flags,
 	.chipset_flush = i9xx_chipset_flush,
 };
+static const struct intel_gtt_driver haswell_gtt_driver = {
+	.gen = 6,
+	.setup = i9xx_setup,
+	.cleanup = gen6_cleanup,
+	.write_entry = haswell_write_entry,
+	.dma_mask_size = 40,
+	.check_flags = gen6_check_flags,
+	.chipset_flush = i9xx_chipset_flush,
+};
 static const struct intel_gtt_driver valleyview_gtt_driver = {
 	.gen = 7,
 	.setup = i9xx_setup,
@@ -1499,19 +1532,77 @@ static const struct intel_gtt_driver_description {
 	{ PCI_DEVICE_ID_INTEL_VALLEYVIEW_IG,
 	    "ValleyView", &valleyview_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_HASWELL_D_GT1_IG,
-	    "Haswell", &sandybridge_gtt_driver },
+	    "Haswell", &haswell_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_HASWELL_D_GT2_IG,
-	    "Haswell", &sandybridge_gtt_driver },
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_D_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_HASWELL_M_GT1_IG,
-	    "Haswell", &sandybridge_gtt_driver },
+	    "Haswell", &haswell_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_HASWELL_M_GT2_IG,
-	    "Haswell", &sandybridge_gtt_driver },
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_M_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_HASWELL_S_GT1_IG,
-	    "Haswell", &sandybridge_gtt_driver },
+	    "Haswell", &haswell_gtt_driver },
 	{ PCI_DEVICE_ID_INTEL_HASWELL_S_GT2_IG,
-	    "Haswell", &sandybridge_gtt_driver },
-	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV,
-	    "Haswell", &sandybridge_gtt_driver },
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_S_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_D_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_D_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_D_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_M_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_M_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_M_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_S_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_S_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_SDV_S_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_D_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_D_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_D_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_M_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_M_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_M_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_S_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_S_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_ULT_S_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_D_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_D_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_D_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_M_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_M_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_M_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_S_GT1_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_S_GT2_IG,
+	    "Haswell", &haswell_gtt_driver },
+	{ PCI_DEVICE_ID_INTEL_HASWELL_CRW_S_GT2_PLUS_IG,
+	    "Haswell", &haswell_gtt_driver },
 	{ 0, NULL, NULL }
 };
 
diff --git a/drivers/char/agp/sgi-agp.c b/drivers/char/agp/sgi-agp.c
index 19200037773..3a5af2f9b01 100644
--- a/drivers/char/agp/sgi-agp.c
+++ b/drivers/char/agp/sgi-agp.c
@@ -289,12 +289,11 @@ static int __devinit agp_sgi_init(void)
 
 	j = 0;
 	list_for_each_entry(info, &tioca_list, ca_list) {
-		struct list_head *tmp;
 		if (list_empty(info->ca_devices))
 			continue;
-		list_for_each(tmp, info->ca_devices) {
+		list_for_each_entry(pdev, info->ca_devices, bus_list) {
 			u8 cap_ptr;
-			pdev = pci_dev_b(tmp);
+
 			if (pdev->class != (PCI_CLASS_DISPLAY_VGA << 8))
 				continue;
 			cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 7c0d391996b..fbd9b2b850e 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -289,3 +289,16 @@ config HW_RANDOM_EXYNOS
 	  module will be called exynos-rng.
 
 	  If unsure, say Y.
+
+config HW_RANDOM_TPM
+	tristate "TPM HW Random Number Generator support"
+	depends on HW_RANDOM && TCG_TPM
+	default HW_RANDOM
+	---help---
+	  This driver provides kernel-side support for the Random Number
+	  Generator in the Trusted Platform Module
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tpm-rng.
+
+	  If unsure, say Y.
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index 39a757ca15b..1fd7eec9fbf 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -25,3 +25,4 @@ obj-$(CONFIG_HW_RANDOM_PICOXCELL) += picoxcell-rng.o
 obj-$(CONFIG_HW_RANDOM_PPC4XX) += ppc4xx-rng.o
 obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
 obj-$(CONFIG_HW_RANDOM_EXYNOS)	+= exynos-rng.o
+obj-$(CONFIG_HW_RANDOM_TPM) += tpm-rng.o
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index d706bd0e9e8..4fbdceb6f77 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -160,7 +160,7 @@ static int __exit omap_rng_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 
 static int omap_rng_suspend(struct device *dev)
 {
diff --git a/drivers/char/hw_random/tpm-rng.c b/drivers/char/hw_random/tpm-rng.c
new file mode 100644
index 00000000000..d6d448266f0
--- /dev/null
+++ b/drivers/char/hw_random/tpm-rng.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2012 Kent Yoder IBM Corporation
+ *
+ * HWRNG interfaces to pull RNG data from a TPM
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/hw_random.h>
+#include <linux/tpm.h>
+
+#define MODULE_NAME "tpm-rng"
+
+static int tpm_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
+{
+	return tpm_get_random(TPM_ANY_NUM, data, max);
+}
+
+static struct hwrng tpm_rng = {
+	.name = MODULE_NAME,
+	.read = tpm_rng_read,
+};
+
+static int __init rng_init(void)
+{
+	return hwrng_register(&tpm_rng);
+}
+module_init(rng_init);
+
+static void __exit rng_exit(void)
+{
+	hwrng_unregister(&tpm_rng);
+}
+module_exit(rng_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Kent Yoder <key@linux.vnet.ibm.com>");
+MODULE_DESCRIPTION("RNG driver for TPM devices");
diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c
index 33dc2298af7..3d6c0671e99 100644
--- a/drivers/char/mmtimer.c
+++ b/drivers/char/mmtimer.c
@@ -826,7 +826,7 @@ static int __init mmtimer_init(void)
 
 	/* Allocate list of node ptrs to mmtimer_t's */
 	timers = kzalloc(sizeof(struct mmtimer_node)*maxn, GFP_KERNEL);
-	if (timers == NULL) {
+	if (!timers) {
 		printk(KERN_ERR "%s: failed to allocate memory for device\n",
 				MMTIMER_NAME);
 		goto out3;
@@ -848,7 +848,6 @@ static int __init mmtimer_init(void)
 	return 0;
 
 out3:
-	kfree(timers);
 	misc_deregister(&mmtimer_miscdev);
 out2:
 	free_irq(SGI_MMTIMER_VECTOR, NULL);
diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c
index 1d82d5838f0..164544afd68 100644
--- a/drivers/char/mwave/mwavedd.c
+++ b/drivers/char/mwave/mwavedd.c
@@ -430,7 +430,7 @@ static ssize_t mwave_write(struct file *file, const char __user *buf,
 
 static int register_serial_portandirq(unsigned int port, int irq)
 {
-	struct uart_port uart;
+	struct uart_8250_port uart;
 	
 	switch ( port ) {
 		case 0x3f8:
@@ -462,14 +462,14 @@ static int register_serial_portandirq(unsigned int port, int irq)
 	} /* switch */
 	/* irq is okay */
 
-	memset(&uart, 0, sizeof(struct uart_port));
+	memset(&uart, 0, sizeof(uart));
 	
-	uart.uartclk =  1843200;
-	uart.iobase = port;
-	uart.irq = irq;
-	uart.iotype = UPIO_PORT;
-	uart.flags =  UPF_SHARE_IRQ;
-	return serial8250_register_port(&uart);
+	uart.port.uartclk =  1843200;
+	uart.port.iobase = port;
+	uart.port.irq = irq;
+	uart.port.iotype = UPIO_PORT;
+	uart.port.flags =  UPF_SHARE_IRQ;
+	return serial8250_register_8250_port(&uart);
 }
 
 
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index 04a480f86c6..cfdfe493c6a 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -93,9 +93,9 @@ int button_del_callback (void (*callback) (void))
 			button_callback_list [lp].count = 0;
 			callback_count--;
 			return 0;
-		};
+		}
 		lp--;
-	};
+	}
 	return -EINVAL;
 }
 
diff --git a/drivers/char/nwflash.c b/drivers/char/nwflash.c
index d45c3345b4a..a0e2f7d7035 100644
--- a/drivers/char/nwflash.c
+++ b/drivers/char/nwflash.c
@@ -30,7 +30,6 @@
 
 #include <asm/hardware/dec21285.h>
 #include <asm/io.h>
-#include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/uaccess.h>
 
@@ -179,9 +178,6 @@ static ssize_t flash_write(struct file *file, const char __user *buf,
 
 	written = 0;
 
-	leds_event(led_claim);
-	leds_event(led_green_on);
-
 	nBlock = (int) p >> 16;	//block # of 64K bytes
 
 	/*
@@ -258,11 +254,6 @@ static ssize_t flash_write(struct file *file, const char __user *buf,
 			printk(KERN_DEBUG "flash_write: written 0x%X bytes OK.\n", written);
 	}
 
-	/*
-	 * restore reg on exit
-	 */
-	leds_event(led_release);
-
 	mutex_unlock(&nwflash_mutex);
 
 	return written;
@@ -334,11 +325,6 @@ static int erase_block(int nBlock)
 	int temp, temp1;
 
 	/*
-	 * orange LED == erase
-	 */
-	leds_event(led_amber_on);
-
-	/*
 	 * reset footbridge to the correct offset 0 (...0..3)
 	 */
 	*CSR_ROMWRITEREG = 0;
@@ -446,12 +432,6 @@ static int write_block(unsigned long p, const char __user *buf, int count)
 	unsigned long timeout;
 	unsigned long timeout1;
 
-	/*
-	 * red LED == write
-	 */
-	leds_event(led_amber_off);
-	leds_event(led_red_on);
-
 	pWritePtr = (unsigned char *) ((unsigned int) (FLASH_BASE + p));
 
 	/*
@@ -558,17 +538,9 @@ static int write_block(unsigned long p, const char __user *buf, int count)
 					       pWritePtr - FLASH_BASE);
 
 				/*
-				 * no LED == waiting
-				 */
-				leds_event(led_amber_off);
-				/*
 				 * wait couple ms
 				 */
 				msleep(10);
-				/*
-				 * red LED == write
-				 */
-				leds_event(led_red_on);
 
 				goto WriteRetry;
 			} else {
@@ -583,12 +555,6 @@ static int write_block(unsigned long p, const char __user *buf, int count)
 		}
 	}
 
-	/*
-	 * green LED == read/verify
-	 */
-	leds_event(led_amber_off);
-	leds_event(led_green_on);
-
 	msleep(10);
 
 	pWritePtr = (unsigned char *) ((unsigned int) (FLASH_BASE + p));
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 0a484b4a1b0..21721d25e38 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -891,6 +891,14 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd, struct tty_struct *tty)
 	int work = 0;
  	struct mgsl_icount *icount = &info->icount;
 
+	if (!tty) {
+		/* tty is not available anymore */
+		issue_command(info, CHA, CMD_RXRESET);
+		if (debug_level >= DEBUG_LEVEL_ISR)
+			printk("%s(%d):rx_ready_async(tty=NULL)\n",__FILE__,__LINE__);
+		return;
+	}
+
 	if (tcd) {
 		/* early termination, get FIFO count from RBCL register */
 		fifo_count = (unsigned char)(read_reg(info, CHA+RBCL) & 0x1f);
@@ -980,7 +988,7 @@ static void tx_done(MGSLPC_INFO *info, struct tty_struct *tty)
 	else
 #endif
 	{
-		if (tty->stopped || tty->hw_stopped) {
+		if (tty && (tty->stopped || tty->hw_stopped)) {
 			tx_stop(info);
 			return;
 		}
@@ -1000,7 +1008,7 @@ static void tx_ready(MGSLPC_INFO *info, struct tty_struct *tty)
 		if (!info->tx_active)
 			return;
 	} else {
-		if (tty->stopped || tty->hw_stopped) {
+		if (tty && (tty->stopped || tty->hw_stopped)) {
 			tx_stop(info);
 			return;
 		}
@@ -1050,13 +1058,12 @@ static void cts_change(MGSLPC_INFO *info, struct tty_struct *tty)
 	wake_up_interruptible(&info->status_event_wait_q);
 	wake_up_interruptible(&info->event_wait_q);
 
-	if (info->port.flags & ASYNC_CTS_FLOW) {
+	if (tty && tty_port_cts_enabled(&info->port)) {
 		if (tty->hw_stopped) {
 			if (info->serial_signals & SerialSignal_CTS) {
 				if (debug_level >= DEBUG_LEVEL_ISR)
 					printk("CTS tx start...");
-				if (tty)
-					tty->hw_stopped = 0;
+				tty->hw_stopped = 0;
 				tx_start(info, tty);
 				info->pending_bh |= BH_TRANSMIT;
 				return;
@@ -1065,8 +1072,7 @@ static void cts_change(MGSLPC_INFO *info, struct tty_struct *tty)
 			if (!(info->serial_signals & SerialSignal_CTS)) {
 				if (debug_level >= DEBUG_LEVEL_ISR)
 					printk("CTS tx stop...");
-				if (tty)
-					tty->hw_stopped = 1;
+				tty->hw_stopped = 1;
 				tx_stop(info);
 			}
 		}
@@ -1344,7 +1350,7 @@ static void shutdown(MGSLPC_INFO * info, struct tty_struct *tty)
 	/* TODO:disable interrupts instead of reset to preserve signal states */
 	reset_device(info);
 
- 	if (!tty || tty->termios->c_cflag & HUPCL) {
+ 	if (!tty || tty->termios.c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		set_signals(info);
 	}
@@ -1385,7 +1391,7 @@ static void mgslpc_program_hw(MGSLPC_INFO *info, struct tty_struct *tty)
 	port_irq_enable(info, (unsigned char) PVR_DSR | PVR_RI);
 	get_signals(info);
 
-	if (info->netcount || (tty && (tty->termios->c_cflag & CREAD)))
+	if (info->netcount || (tty && (tty->termios.c_cflag & CREAD)))
 		rx_start(info);
 
 	spin_unlock_irqrestore(&info->lock,flags);
@@ -1398,14 +1404,14 @@ static void mgslpc_change_params(MGSLPC_INFO *info, struct tty_struct *tty)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!tty || !tty->termios)
+	if (!tty)
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgslpc_change_params(%s)\n",
 			 __FILE__,__LINE__, info->device_name );
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -1728,7 +1734,7 @@ static void mgslpc_throttle(struct tty_struct * tty)
 	if (I_IXOFF(tty))
 		mgslpc_send_xchar(tty, STOP_CHAR(tty));
 
- 	if (tty->termios->c_cflag & CRTSCTS) {
+ 	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->lock,flags);
 		info->serial_signals &= ~SerialSignal_RTS;
 	 	set_signals(info);
@@ -1757,7 +1763,7 @@ static void mgslpc_unthrottle(struct tty_struct * tty)
 			mgslpc_send_xchar(tty, START_CHAR(tty));
 	}
 
- 	if (tty->termios->c_cflag & CRTSCTS) {
+ 	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->lock,flags);
 		info->serial_signals |= SerialSignal_RTS;
 	 	set_signals(info);
@@ -2293,8 +2299,8 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
 			tty->driver->name );
 
 	/* just return if nothing has changed */
-	if ((tty->termios->c_cflag == old_termios->c_cflag)
-	    && (RELEVANT_IFLAG(tty->termios->c_iflag)
+	if ((tty->termios.c_cflag == old_termios->c_cflag)
+	    && (RELEVANT_IFLAG(tty->termios.c_iflag)
 		== RELEVANT_IFLAG(old_termios->c_iflag)))
 	  return;
 
@@ -2302,7 +2308,7 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
 
 	/* Handle transition to B0 status */
 	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
+	    !(tty->termios.c_cflag & CBAUD)) {
 		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
 		spin_lock_irqsave(&info->lock,flags);
 	 	set_signals(info);
@@ -2311,9 +2317,9 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
 
 	/* Handle transition away from B0 status */
 	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
+	    tty->termios.c_cflag & CBAUD) {
 		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) ||
+ 		if (!(tty->termios.c_cflag & CRTSCTS) ||
  		    !test_bit(TTY_THROTTLED, &tty->flags)) {
 			info->serial_signals |= SerialSignal_RTS;
  		}
@@ -2324,7 +2330,7 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
 
 	/* Handle turning off CRTSCTS */
 	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		tx_release(tty);
 	}
@@ -2731,6 +2737,8 @@ static void mgslpc_add_device(MGSLPC_INFO *info)
 #if SYNCLINK_GENERIC_HDLC
 	hdlcdev_init(info);
 #endif
+	tty_port_register_device(&info->port, serial_driver, info->line,
+			&info->p_dev->dev);
 }
 
 static void mgslpc_remove_device(MGSLPC_INFO *remove_info)
@@ -2744,6 +2752,7 @@ static void mgslpc_remove_device(MGSLPC_INFO *remove_info)
 				last->next_device = info->next_device;
 			else
 				mgslpc_device_list = info->next_device;
+			tty_unregister_device(serial_driver, info->line);
 #if SYNCLINK_GENERIC_HDLC
 			hdlcdev_exit(info);
 #endif
@@ -2798,77 +2807,63 @@ static const struct tty_operations mgslpc_ops = {
 	.proc_fops = &mgslpc_proc_fops,
 };
 
-static void synclink_cs_cleanup(void)
+static int __init synclink_cs_init(void)
 {
 	int rc;
 
-	while(mgslpc_device_list)
-		mgslpc_remove_device(mgslpc_device_list);
-
-	if (serial_driver) {
-		if ((rc = tty_unregister_driver(serial_driver)))
-			printk("%s(%d) failed to unregister tty driver err=%d\n",
-			       __FILE__,__LINE__,rc);
-		put_tty_driver(serial_driver);
+	if (break_on_load) {
+		mgslpc_get_text_ptr();
+		BREAKPOINT();
 	}
 
-	pcmcia_unregister_driver(&mgslpc_driver);
-}
-
-static int __init synclink_cs_init(void)
-{
-    int rc;
-
-    if (break_on_load) {
-	    mgslpc_get_text_ptr();
-	    BREAKPOINT();
-    }
-
-    if ((rc = pcmcia_register_driver(&mgslpc_driver)) < 0)
-	    return rc;
-
-    serial_driver = alloc_tty_driver(MAX_DEVICE_COUNT);
-    if (!serial_driver) {
-	    rc = -ENOMEM;
-	    goto error;
-    }
+	serial_driver = tty_alloc_driver(MAX_DEVICE_COUNT,
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_DYNAMIC_DEV);
+	if (IS_ERR(serial_driver)) {
+		rc = PTR_ERR(serial_driver);
+		goto err;
+	}
 
-    /* Initialize the tty_driver structure */
-
-    serial_driver->driver_name = "synclink_cs";
-    serial_driver->name = "ttySLP";
-    serial_driver->major = ttymajor;
-    serial_driver->minor_start = 64;
-    serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-    serial_driver->subtype = SERIAL_TYPE_NORMAL;
-    serial_driver->init_termios = tty_std_termios;
-    serial_driver->init_termios.c_cflag =
-	    B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-    serial_driver->flags = TTY_DRIVER_REAL_RAW;
-    tty_set_operations(serial_driver, &mgslpc_ops);
-
-    if ((rc = tty_register_driver(serial_driver)) < 0) {
-	    printk("%s(%d):Couldn't register serial driver\n",
-		   __FILE__,__LINE__);
-	    put_tty_driver(serial_driver);
-	    serial_driver = NULL;
-	    goto error;
-    }
+	/* Initialize the tty_driver structure */
+	serial_driver->driver_name = "synclink_cs";
+	serial_driver->name = "ttySLP";
+	serial_driver->major = ttymajor;
+	serial_driver->minor_start = 64;
+	serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
+	serial_driver->subtype = SERIAL_TYPE_NORMAL;
+	serial_driver->init_termios = tty_std_termios;
+	serial_driver->init_termios.c_cflag =
+	B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	tty_set_operations(serial_driver, &mgslpc_ops);
+
+	rc = tty_register_driver(serial_driver);
+	if (rc < 0) {
+		printk(KERN_ERR "%s(%d):Couldn't register serial driver\n",
+				__FILE__, __LINE__);
+		goto err_put_tty;
+	}
 
-    printk("%s %s, tty major#%d\n",
-	   driver_name, driver_version,
-	   serial_driver->major);
+	rc = pcmcia_register_driver(&mgslpc_driver);
+	if (rc < 0)
+		goto err_unreg_tty;
 
-    return 0;
+	printk(KERN_INFO "%s %s, tty major#%d\n", driver_name, driver_version,
+			serial_driver->major);
 
-error:
-    synclink_cs_cleanup();
-    return rc;
+	return 0;
+err_unreg_tty:
+	tty_unregister_driver(serial_driver);
+err_put_tty:
+	put_tty_driver(serial_driver);
+err:
+	return rc;
 }
 
 static void __exit synclink_cs_exit(void)
 {
-	synclink_cs_cleanup();
+	pcmcia_unregister_driver(&mgslpc_driver);
+	tty_unregister_driver(serial_driver);
+	put_tty_driver(serial_driver);
 }
 
 module_init(synclink_cs_init);
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index 3fcf80ff12f..d0d824ebf2c 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -783,7 +783,8 @@ static int __init ppdev_init (void)
 		err = PTR_ERR(ppdev_class);
 		goto out_chrdev;
 	}
-	if (parport_register_driver(&pp_driver)) {
+	err = parport_register_driver(&pp_driver);
+	if (err < 0) {
 		printk (KERN_WARNING CHRDEV ": unable to register with parport\n");
 		goto out_class;
 	}
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index af9437488b6..91470fdbab2 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -411,7 +411,7 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
 		case RTC_IRQP_READ:
 		case RTC_IRQP_SET:
 			return -EINVAL;
-		};
+		}
 	}
 #endif
 
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index f87780502b4..320debbe32f 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -1433,7 +1433,7 @@ static int __devexit sonypi_remove(struct platform_device *dev)
 	sonypi_disable();
 
 	synchronize_irq(sonypi_device.irq);
-	flush_work_sync(&sonypi_device.input_work);
+	flush_work(&sonypi_device.input_work);
 
 	if (useinput) {
 		input_unregister_device(sonypi_device.input_key_dev);
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index ce29e7cce52..e95e0ab0bd8 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -784,8 +784,10 @@ static int __init tlclk_init(void)
 	}
 	tlclk_major = ret;
 	alarm_events = kzalloc( sizeof(struct tlclk_alarms), GFP_KERNEL);
-	if (!alarm_events)
+	if (!alarm_events) {
+		ret = -ENOMEM;
 		goto out1;
+	}
 
 	/* Read telecom clock IRQ number (Set by BIOS) */
 	if (!request_region(TLCLK_BASE, 8, "telco_clock")) {
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index a048199ce86..915875e431d 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -33,6 +33,17 @@ config TCG_TIS
 	  from within Linux.  To compile this driver as a module, choose
 	  M here; the module will be called tpm_tis.
 
+config TCG_TIS_I2C_INFINEON
+	tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
+	depends on I2C
+	---help---
+	  If you have a TPM security chip that is compliant with the
+	  TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
+	  Specification 0.20 say Yes and it will be accessible from within
+	  Linux.
+	  To compile this driver as a module, choose M here; the module
+	  will be called tpm_tis_i2c_infineon.
+
 config TCG_NSC
 	tristate "National Semiconductor TPM Interface"
 	depends on X86
@@ -62,4 +73,12 @@ config TCG_INFINEON
 	  Further information on this driver and the supported hardware
 	  can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/ 
 
+config TCG_IBMVTPM
+	tristate "IBM VTPM Interface"
+	depends on PPC64
+	---help---
+	  If you have IBM virtual TPM (VTPM) support say Yes and it
+	  will be accessible from within Linux.  To compile this driver
+	  as a module, choose M here; the module will be called tpm_ibmvtpm.
+
 endif # TCG_TPM
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index ea3a1e02a82..5b3fc8bc6c1 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -4,8 +4,16 @@
 obj-$(CONFIG_TCG_TPM) += tpm.o
 ifdef CONFIG_ACPI
 	obj-$(CONFIG_TCG_TPM) += tpm_bios.o
+	tpm_bios-objs += tpm_eventlog.o tpm_acpi.o tpm_ppi.o
+else
+ifdef CONFIG_TCG_IBMVTPM
+	obj-$(CONFIG_TCG_TPM) += tpm_bios.o
+	tpm_bios-objs += tpm_eventlog.o tpm_of.o
+endif
 endif
 obj-$(CONFIG_TCG_TIS) += tpm_tis.o
+obj-$(CONFIG_TCG_TIS_I2C_INFINEON) += tpm_i2c_infineon.o
 obj-$(CONFIG_TCG_NSC) += tpm_nsc.o
 obj-$(CONFIG_TCG_ATMEL) += tpm_atmel.o
 obj-$(CONFIG_TCG_INFINEON) += tpm_infineon.o
+obj-$(CONFIG_TCG_IBMVTPM) += tpm_ibmvtpm.o
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 817f0ee202b..f26afdb1a70 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -30,12 +30,7 @@
 #include <linux/freezer.h>
 
 #include "tpm.h"
-
-enum tpm_const {
-	TPM_MINOR = 224,	/* officially assigned */
-	TPM_BUFSIZE = 4096,
-	TPM_NUM_DEVICES = 256,
-};
+#include "tpm_eventlog.h"
 
 enum tpm_duration {
 	TPM_SHORT = 0,
@@ -482,6 +477,7 @@ static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
 #define TPM_INTERNAL_RESULT_SIZE 200
 #define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
 #define TPM_ORD_GET_CAP cpu_to_be32(101)
+#define TPM_ORD_GET_RANDOM cpu_to_be32(70)
 
 static const struct tpm_input_header tpm_getcap_header = {
 	.tag = TPM_TAG_RQU_COMMAND,
@@ -919,7 +915,7 @@ EXPORT_SYMBOL_GPL(tpm_show_pcrs);
 
 #define  READ_PUBEK_RESULT_SIZE 314
 #define TPM_ORD_READPUBEK cpu_to_be32(124)
-struct tpm_input_header tpm_readpubek_header = {
+static struct tpm_input_header tpm_readpubek_header = {
 	.tag = TPM_TAG_RQU_COMMAND,
 	.length = cpu_to_be32(30),
 	.ordinal = TPM_ORD_READPUBEK
@@ -1172,10 +1168,10 @@ int tpm_release(struct inode *inode, struct file *file)
 	struct tpm_chip *chip = file->private_data;
 
 	del_singleshot_timer_sync(&chip->user_read_timer);
-	flush_work_sync(&chip->work);
+	flush_work(&chip->work);
 	file->private_data = NULL;
 	atomic_set(&chip->data_pending, 0);
-	kfree(chip->data_buffer);
+	kzfree(chip->data_buffer);
 	clear_bit(0, &chip->is_open);
 	put_device(chip->dev);
 	return 0;
@@ -1225,9 +1221,8 @@ ssize_t tpm_read(struct file *file, char __user *buf,
 	int rc;
 
 	del_singleshot_timer_sync(&chip->user_read_timer);
-	flush_work_sync(&chip->work);
+	flush_work(&chip->work);
 	ret_size = atomic_read(&chip->data_pending);
-	atomic_set(&chip->data_pending, 0);
 	if (ret_size > 0) {	/* relay data */
 		ssize_t orig_ret_size = ret_size;
 		if (size < ret_size)
@@ -1242,6 +1237,8 @@ ssize_t tpm_read(struct file *file, char __user *buf,
 		mutex_unlock(&chip->buffer_mutex);
 	}
 
+	atomic_set(&chip->data_pending, 0);
+
 	return ret_size;
 }
 EXPORT_SYMBOL_GPL(tpm_read);
@@ -1326,6 +1323,58 @@ int tpm_pm_resume(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(tpm_pm_resume);
 
+#define TPM_GETRANDOM_RESULT_SIZE	18
+static struct tpm_input_header tpm_getrandom_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(14),
+	.ordinal = TPM_ORD_GET_RANDOM
+};
+
+/**
+ * tpm_get_random() - Get random bytes from the tpm's RNG
+ * @chip_num: A specific chip number for the request or TPM_ANY_NUM
+ * @out: destination buffer for the random bytes
+ * @max: the max number of bytes to write to @out
+ *
+ * Returns < 0 on error and the number of bytes read on success
+ */
+int tpm_get_random(u32 chip_num, u8 *out, size_t max)
+{
+	struct tpm_chip *chip;
+	struct tpm_cmd_t tpm_cmd;
+	u32 recd, num_bytes = min_t(u32, max, TPM_MAX_RNG_DATA);
+	int err, total = 0, retries = 5;
+	u8 *dest = out;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+
+	if (!out || !num_bytes || max > TPM_MAX_RNG_DATA)
+		return -EINVAL;
+
+	do {
+		tpm_cmd.header.in = tpm_getrandom_header;
+		tpm_cmd.params.getrandom_in.num_bytes = cpu_to_be32(num_bytes);
+
+		err = transmit_cmd(chip, &tpm_cmd,
+				   TPM_GETRANDOM_RESULT_SIZE + num_bytes,
+				   "attempting get random");
+		if (err)
+			break;
+
+		recd = be32_to_cpu(tpm_cmd.params.getrandom_out.rng_data_len);
+		memcpy(dest, tpm_cmd.params.getrandom_out.rng_data, recd);
+
+		dest += recd;
+		total += recd;
+		num_bytes -= recd;
+	} while (retries-- && total < max);
+
+	return total ? total : -EIO;
+}
+EXPORT_SYMBOL_GPL(tpm_get_random);
+
 /* In case vendor provided release function, call it too.*/
 
 void tpm_dev_vendor_release(struct tpm_chip *chip)
@@ -1346,7 +1395,7 @@ EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
  * Once all references to platform device are down to 0,
  * release all allocated structures.
  */
-void tpm_dev_release(struct device *dev)
+static void tpm_dev_release(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 
@@ -1427,6 +1476,11 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
 		goto put_device;
 	}
 
+	if (sys_add_ppi(&dev->kobj)) {
+		misc_deregister(&chip->vendor.miscdev);
+		goto put_device;
+	}
+
 	chip->bios_dir = tpm_bios_log_setup(devname);
 
 	/* Make chip available */
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 917f727e674..02c266aa2bf 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -28,6 +28,12 @@
 #include <linux/io.h>
 #include <linux/tpm.h>
 
+enum tpm_const {
+	TPM_MINOR = 224,	/* officially assigned */
+	TPM_BUFSIZE = 4096,
+	TPM_NUM_DEVICES = 256,
+};
+
 enum tpm_timeout {
 	TPM_TIMEOUT = 5,	/* msecs */
 };
@@ -94,6 +100,7 @@ struct tpm_vendor_specific {
 	bool timeout_adjusted;
 	unsigned long duration[3]; /* jiffies */
 	bool duration_adjusted;
+	void *data;
 
 	wait_queue_head_t read_queue;
 	wait_queue_head_t int_queue;
@@ -269,6 +276,21 @@ struct tpm_pcrextend_in {
 	u8	hash[TPM_DIGEST_SIZE];
 }__attribute__((packed));
 
+/* 128 bytes is an arbitrary cap. This could be as large as TPM_BUFSIZE - 18
+ * bytes, but 128 is still a relatively large number of random bytes and
+ * anything much bigger causes users of struct tpm_cmd_t to start getting
+ * compiler warnings about stack frame size. */
+#define TPM_MAX_RNG_DATA	128
+
+struct tpm_getrandom_out {
+	__be32 rng_data_len;
+	u8     rng_data[TPM_MAX_RNG_DATA];
+}__attribute__((packed));
+
+struct tpm_getrandom_in {
+	__be32 num_bytes;
+}__attribute__((packed));
+
 typedef union {
 	struct	tpm_getcap_params_out getcap_out;
 	struct	tpm_readpubek_params_out readpubek_out;
@@ -277,6 +299,8 @@ typedef union {
 	struct	tpm_pcrread_in	pcrread_in;
 	struct	tpm_pcrread_out	pcrread_out;
 	struct	tpm_pcrextend_in pcrextend_in;
+	struct	tpm_getrandom_in getrandom_in;
+	struct	tpm_getrandom_out getrandom_out;
 } tpm_cmd_params;
 
 struct tpm_cmd_t {
@@ -303,15 +327,12 @@ extern int tpm_pm_suspend(struct device *);
 extern int tpm_pm_resume(struct device *);
 extern int wait_for_tpm_stat(struct tpm_chip *, u8, unsigned long,
 			     wait_queue_head_t *);
+
 #ifdef CONFIG_ACPI
-extern struct dentry ** tpm_bios_log_setup(char *);
-extern void tpm_bios_log_teardown(struct dentry **);
+extern ssize_t sys_add_ppi(struct kobject *parent);
 #else
-static inline struct dentry ** tpm_bios_log_setup(char *name)
-{
-	return NULL;
-}
-static inline void tpm_bios_log_teardown(struct dentry **dir)
+static inline ssize_t sys_add_ppi(struct kobject *parent)
 {
+	return 0;
 }
 #endif
diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
new file mode 100644
index 00000000000..56051d0c97a
--- /dev/null
+++ b/drivers/char/tpm/tpm_acpi.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2005 IBM Corporation
+ *
+ * Authors:
+ *	Seiji Munetoh <munetoh@jp.ibm.com>
+ *	Stefan Berger <stefanb@us.ibm.com>
+ *	Reiner Sailer <sailer@watson.ibm.com>
+ *	Kylene Hall <kjhall@us.ibm.com>
+ *
+ * Maintained by: <tpmdd-devel@lists.sourceforge.net>
+ *
+ * Access to the eventlog extended by the TCG BIOS of PC platform
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/seq_file.h>
+#include <linux/fs.h>
+#include <linux/security.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <acpi/acpi.h>
+
+#include "tpm.h"
+#include "tpm_eventlog.h"
+
+struct acpi_tcpa {
+	struct acpi_table_header hdr;
+	u16 platform_class;
+	union {
+		struct client_hdr {
+			u32 log_max_len __attribute__ ((packed));
+			u64 log_start_addr __attribute__ ((packed));
+		} client;
+		struct server_hdr {
+			u16 reserved;
+			u64 log_max_len __attribute__ ((packed));
+			u64 log_start_addr __attribute__ ((packed));
+		} server;
+	};
+};
+
+/* read binary bios log */
+int read_log(struct tpm_bios_log *log)
+{
+	struct acpi_tcpa *buff;
+	acpi_status status;
+	void __iomem *virt;
+	u64 len, start;
+
+	if (log->bios_event_log != NULL) {
+		printk(KERN_ERR
+		       "%s: ERROR - Eventlog already initialized\n",
+		       __func__);
+		return -EFAULT;
+	}
+
+	/* Find TCPA entry in RSDT (ACPI_LOGICAL_ADDRESSING) */
+	status = acpi_get_table(ACPI_SIG_TCPA, 1,
+				(struct acpi_table_header **)&buff);
+
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_ERR "%s: ERROR - Could not get TCPA table\n",
+		       __func__);
+		return -EIO;
+	}
+
+	switch(buff->platform_class) {
+	case BIOS_SERVER:
+		len = buff->server.log_max_len;
+		start = buff->server.log_start_addr;
+		break;
+	case BIOS_CLIENT:
+	default:
+		len = buff->client.log_max_len;
+		start = buff->client.log_start_addr;
+		break;
+	}
+	if (!len) {
+		printk(KERN_ERR "%s: ERROR - TCPA log area empty\n", __func__);
+		return -EIO;
+	}
+
+	/* malloc EventLog space */
+	log->bios_event_log = kmalloc(len, GFP_KERNEL);
+	if (!log->bios_event_log) {
+		printk("%s: ERROR - Not enough  Memory for BIOS measurements\n",
+			__func__);
+		return -ENOMEM;
+	}
+
+	log->bios_event_log_end = log->bios_event_log + len;
+
+	virt = acpi_os_map_memory(start, len);
+	if (!virt) {
+		kfree(log->bios_event_log);
+		printk("%s: ERROR - Unable to map memory\n", __func__);
+		return -EIO;
+	}
+
+	memcpy_fromio(log->bios_event_log, virt, len);
+
+	acpi_os_unmap_memory(virt, len);
+	return 0;
+}
diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_eventlog.c
index 0636520fa9b..84ddc557b8f 100644
--- a/drivers/char/tpm/tpm_bios.c
+++ b/drivers/char/tpm/tpm_eventlog.c
@@ -1,7 +1,8 @@
 /*
- * Copyright (C) 2005 IBM Corporation
+ * Copyright (C) 2005, 2012 IBM Corporation
  *
  * Authors:
+ *	Kent Yoder <key@linux.vnet.ibm.com>
  *	Seiji Munetoh <munetoh@jp.ibm.com>
  *	Stefan Berger <stefanb@us.ibm.com>
  *	Reiner Sailer <sailer@watson.ibm.com>
@@ -9,7 +10,7 @@
  *
  * Maintained by: <tpmdd-devel@lists.sourceforge.net>
  *
- * Access to the eventlog extended by the TCG BIOS of PC platform
+ * Access to the eventlog created by a system's firmware / BIOS
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -23,67 +24,10 @@
 #include <linux/security.h>
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <acpi/acpi.h>
-#include "tpm.h"
-
-#define TCG_EVENT_NAME_LEN_MAX	255
-#define MAX_TEXT_EVENT		1000	/* Max event string length */
-#define ACPI_TCPA_SIG		"TCPA"	/* 0x41504354 /'TCPA' */
-
-enum bios_platform_class {
-	BIOS_CLIENT = 0x00,
-	BIOS_SERVER = 0x01,
-};
-
-struct tpm_bios_log {
-	void *bios_event_log;
-	void *bios_event_log_end;
-};
-
-struct acpi_tcpa {
-	struct acpi_table_header hdr;
-	u16 platform_class;
-	union {
-		struct client_hdr {
-			u32 log_max_len __attribute__ ((packed));
-			u64 log_start_addr __attribute__ ((packed));
-		} client;
-		struct server_hdr {
-			u16 reserved;
-			u64 log_max_len __attribute__ ((packed));
-			u64 log_start_addr __attribute__ ((packed));
-		} server;
-	};
-};
 
-struct tcpa_event {
-	u32 pcr_index;
-	u32 event_type;
-	u8 pcr_value[20];	/* SHA1 */
-	u32 event_size;
-	u8 event_data[0];
-};
+#include "tpm.h"
+#include "tpm_eventlog.h"
 
-enum tcpa_event_types {
-	PREBOOT = 0,
-	POST_CODE,
-	UNUSED,
-	NO_ACTION,
-	SEPARATOR,
-	ACTION,
-	EVENT_TAG,
-	SCRTM_CONTENTS,
-	SCRTM_VERSION,
-	CPU_MICROCODE,
-	PLATFORM_CONFIG_FLAGS,
-	TABLE_OF_DEVICES,
-	COMPACT_HASH,
-	IPL,
-	IPL_PARTITION_DATA,
-	NONHOST_CODE,
-	NONHOST_CONFIG,
-	NONHOST_INFO,
-};
 
 static const char* tcpa_event_type_strings[] = {
 	"PREBOOT",
@@ -106,28 +50,6 @@ static const char* tcpa_event_type_strings[] = {
 	"Non-Host Info"
 };
 
-struct tcpa_pc_event {
-	u32 event_id;
-	u32 event_size;
-	u8 event_data[0];
-};
-
-enum tcpa_pc_event_ids {
-	SMBIOS = 1,
-	BIS_CERT,
-	POST_BIOS_ROM,
-	ESCD,
-	CMOS,
-	NVRAM,
-	OPTION_ROM_EXEC,
-	OPTION_ROM_CONFIG,
-	OPTION_ROM_MICROCODE = 10,
-	S_CRTM_VERSION,
-	S_CRTM_CONTENTS,
-	POST_CONTENTS,
-	HOST_TABLE_OF_DEVICES,
-};
-
 static const char* tcpa_pc_event_id_strings[] = {
 	"",
 	"SMBIOS",
@@ -358,65 +280,6 @@ static const struct seq_operations tpm_binary_b_measurments_seqops = {
 	.show = tpm_binary_bios_measurements_show,
 };
 
-/* read binary bios log */
-static int read_log(struct tpm_bios_log *log)
-{
-	struct acpi_tcpa *buff;
-	acpi_status status;
-	struct acpi_table_header *virt;
-	u64 len, start;
-
-	if (log->bios_event_log != NULL) {
-		printk(KERN_ERR
-		       "%s: ERROR - Eventlog already initialized\n",
-		       __func__);
-		return -EFAULT;
-	}
-
-	/* Find TCPA entry in RSDT (ACPI_LOGICAL_ADDRESSING) */
-	status = acpi_get_table(ACPI_SIG_TCPA, 1,
-				(struct acpi_table_header **)&buff);
-
-	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR "%s: ERROR - Could not get TCPA table\n",
-		       __func__);
-		return -EIO;
-	}
-
-	switch(buff->platform_class) {
-	case BIOS_SERVER:
-		len = buff->server.log_max_len;
-		start = buff->server.log_start_addr;
-		break;
-	case BIOS_CLIENT:
-	default:
-		len = buff->client.log_max_len;
-		start = buff->client.log_start_addr;
-		break;
-	}
-	if (!len) {
-		printk(KERN_ERR "%s: ERROR - TCPA log area empty\n", __func__);
-		return -EIO;
-	}
-
-	/* malloc EventLog space */
-	log->bios_event_log = kmalloc(len, GFP_KERNEL);
-	if (!log->bios_event_log) {
-		printk("%s: ERROR - Not enough  Memory for BIOS measurements\n",
-			__func__);
-		return -ENOMEM;
-	}
-
-	log->bios_event_log_end = log->bios_event_log + len;
-
-	virt = acpi_os_map_memory(start, len);
-
-	memcpy(log->bios_event_log, virt, len);
-
-	acpi_os_unmap_memory(virt, len);
-	return 0;
-}
-
 static int tpm_ascii_bios_measurements_open(struct inode *inode,
 					    struct file *file)
 {
diff --git a/drivers/char/tpm/tpm_eventlog.h b/drivers/char/tpm/tpm_eventlog.h
new file mode 100644
index 00000000000..e7da086d692
--- /dev/null
+++ b/drivers/char/tpm/tpm_eventlog.h
@@ -0,0 +1,86 @@
+
+#ifndef __TPM_EVENTLOG_H__
+#define __TPM_EVENTLOG_H__
+
+#define TCG_EVENT_NAME_LEN_MAX	255
+#define MAX_TEXT_EVENT		1000	/* Max event string length */
+#define ACPI_TCPA_SIG		"TCPA"	/* 0x41504354 /'TCPA' */
+
+enum bios_platform_class {
+	BIOS_CLIENT = 0x00,
+	BIOS_SERVER = 0x01,
+};
+
+struct tpm_bios_log {
+	void *bios_event_log;
+	void *bios_event_log_end;
+};
+
+struct tcpa_event {
+	u32 pcr_index;
+	u32 event_type;
+	u8 pcr_value[20];	/* SHA1 */
+	u32 event_size;
+	u8 event_data[0];
+};
+
+enum tcpa_event_types {
+	PREBOOT = 0,
+	POST_CODE,
+	UNUSED,
+	NO_ACTION,
+	SEPARATOR,
+	ACTION,
+	EVENT_TAG,
+	SCRTM_CONTENTS,
+	SCRTM_VERSION,
+	CPU_MICROCODE,
+	PLATFORM_CONFIG_FLAGS,
+	TABLE_OF_DEVICES,
+	COMPACT_HASH,
+	IPL,
+	IPL_PARTITION_DATA,
+	NONHOST_CODE,
+	NONHOST_CONFIG,
+	NONHOST_INFO,
+};
+
+struct tcpa_pc_event {
+	u32 event_id;
+	u32 event_size;
+	u8 event_data[0];
+};
+
+enum tcpa_pc_event_ids {
+	SMBIOS = 1,
+	BIS_CERT,
+	POST_BIOS_ROM,
+	ESCD,
+	CMOS,
+	NVRAM,
+	OPTION_ROM_EXEC,
+	OPTION_ROM_CONFIG,
+	OPTION_ROM_MICROCODE = 10,
+	S_CRTM_VERSION,
+	S_CRTM_CONTENTS,
+	POST_CONTENTS,
+	HOST_TABLE_OF_DEVICES,
+};
+
+int read_log(struct tpm_bios_log *log);
+
+#if defined(CONFIG_TCG_IBMVTPM) || defined(CONFIG_TCG_IBMVTPM_MODULE) || \
+	defined(CONFIG_ACPI)
+extern struct dentry **tpm_bios_log_setup(char *);
+extern void tpm_bios_log_teardown(struct dentry **);
+#else
+static inline struct dentry **tpm_bios_log_setup(char *name)
+{
+	return NULL;
+}
+static inline void tpm_bios_log_teardown(struct dentry **dir)
+{
+}
+#endif
+
+#endif
diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
new file mode 100644
index 00000000000..5a831aec9d4
--- /dev/null
+++ b/drivers/char/tpm/tpm_i2c_infineon.c
@@ -0,0 +1,695 @@
+/*
+ * Copyright (C) 2012 Infineon Technologies
+ *
+ * Authors:
+ * Peter Huewe <peter.huewe@infineon.com>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * This device driver implements the TPM interface as defined in
+ * the TCG TPM Interface Spec version 1.2, revision 1.0 and the
+ * Infineon I2C Protocol Stack Specification v0.20.
+ *
+ * It is based on the original tpm_tis device driver from Leendert van
+ * Dorn and Kyleen Hall.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ *
+ */
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/wait.h>
+#include "tpm.h"
+
+/* max. buffer size supported by our TPM */
+#define TPM_BUFSIZE 1260
+
+/* max. number of iterations after I2C NAK */
+#define MAX_COUNT 3
+
+#define SLEEP_DURATION_LOW 55
+#define SLEEP_DURATION_HI 65
+
+/* max. number of iterations after I2C NAK for 'long' commands
+ * we need this especially for sending TPM_READY, since the cleanup after the
+ * transtion to the ready state may take some time, but it is unpredictable
+ * how long it will take.
+ */
+#define MAX_COUNT_LONG 50
+
+#define SLEEP_DURATION_LONG_LOW 200
+#define SLEEP_DURATION_LONG_HI 220
+
+/* After sending TPM_READY to 'reset' the TPM we have to sleep even longer */
+#define SLEEP_DURATION_RESET_LOW 2400
+#define SLEEP_DURATION_RESET_HI 2600
+
+/* we want to use usleep_range instead of msleep for the 5ms TPM_TIMEOUT */
+#define TPM_TIMEOUT_US_LOW (TPM_TIMEOUT * 1000)
+#define TPM_TIMEOUT_US_HI  (TPM_TIMEOUT_US_LOW + 2000)
+
+/* expected value for DIDVID register */
+#define TPM_TIS_I2C_DID_VID 0x000b15d1L
+
+/* Structure to store I2C TPM specific stuff */
+struct tpm_inf_dev {
+	struct i2c_client *client;
+	u8 buf[TPM_BUFSIZE + sizeof(u8)]; /* max. buffer size + addr */
+	struct tpm_chip *chip;
+};
+
+static struct tpm_inf_dev tpm_dev;
+static struct i2c_driver tpm_tis_i2c_driver;
+
+/*
+ * iic_tpm_read() - read from TPM register
+ * @addr: register address to read from
+ * @buffer: provided by caller
+ * @len: number of bytes to read
+ *
+ * Read len bytes from TPM register and put them into
+ * buffer (little-endian format, i.e. first byte is put into buffer[0]).
+ *
+ * NOTE: TPM is big-endian for multi-byte values. Multi-byte
+ * values have to be swapped.
+ *
+ * NOTE: We can't unfortunately use the combined read/write functions
+ * provided by the i2c core as the TPM currently does not support the
+ * repeated start condition and due to it's special requirements.
+ * The i2c_smbus* functions do not work for this chip.
+ *
+ * Return -EIO on error, 0 on success.
+ */
+static int iic_tpm_read(u8 addr, u8 *buffer, size_t len)
+{
+
+	struct i2c_msg msg1 = { tpm_dev.client->addr, 0, 1, &addr };
+	struct i2c_msg msg2 = { tpm_dev.client->addr, I2C_M_RD, len, buffer };
+
+	int rc;
+	int count;
+
+	/* Lock the adapter for the duration of the whole sequence. */
+	if (!tpm_dev.client->adapter->algo->master_xfer)
+		return -EOPNOTSUPP;
+	i2c_lock_adapter(tpm_dev.client->adapter);
+
+	for (count = 0; count < MAX_COUNT; count++) {
+		rc = __i2c_transfer(tpm_dev.client->adapter, &msg1, 1);
+		if (rc > 0)
+			break;	/* break here to skip sleep */
+
+		usleep_range(SLEEP_DURATION_LOW, SLEEP_DURATION_HI);
+	}
+
+	if (rc <= 0)
+		goto out;
+
+	/* After the TPM has successfully received the register address it needs
+	 * some time, thus we're sleeping here again, before retrieving the data
+	 */
+	for (count = 0; count < MAX_COUNT; count++) {
+		usleep_range(SLEEP_DURATION_LOW, SLEEP_DURATION_HI);
+		rc = __i2c_transfer(tpm_dev.client->adapter, &msg2, 1);
+		if (rc > 0)
+			break;
+
+	}
+
+out:
+	i2c_unlock_adapter(tpm_dev.client->adapter);
+	if (rc <= 0)
+		return -EIO;
+
+	return 0;
+}
+
+static int iic_tpm_write_generic(u8 addr, u8 *buffer, size_t len,
+				 unsigned int sleep_low,
+				 unsigned int sleep_hi, u8 max_count)
+{
+	int rc = -EIO;
+	int count;
+
+	struct i2c_msg msg1 = { tpm_dev.client->addr, 0, len + 1, tpm_dev.buf };
+
+	if (len > TPM_BUFSIZE)
+		return -EINVAL;
+
+	if (!tpm_dev.client->adapter->algo->master_xfer)
+		return -EOPNOTSUPP;
+	i2c_lock_adapter(tpm_dev.client->adapter);
+
+	/* prepend the 'register address' to the buffer */
+	tpm_dev.buf[0] = addr;
+	memcpy(&(tpm_dev.buf[1]), buffer, len);
+
+	/*
+	 * NOTE: We have to use these special mechanisms here and unfortunately
+	 * cannot rely on the standard behavior of i2c_transfer.
+	 */
+	for (count = 0; count < max_count; count++) {
+		rc = __i2c_transfer(tpm_dev.client->adapter, &msg1, 1);
+		if (rc > 0)
+			break;
+
+		usleep_range(sleep_low, sleep_hi);
+	}
+
+	i2c_unlock_adapter(tpm_dev.client->adapter);
+	if (rc <= 0)
+		return -EIO;
+
+	return 0;
+}
+
+/*
+ * iic_tpm_write() - write to TPM register
+ * @addr: register address to write to
+ * @buffer: containing data to be written
+ * @len: number of bytes to write
+ *
+ * Write len bytes from provided buffer to TPM register (little
+ * endian format, i.e. buffer[0] is written as first byte).
+ *
+ * NOTE: TPM is big-endian for multi-byte values. Multi-byte
+ * values have to be swapped.
+ *
+ * NOTE: use this function instead of the iic_tpm_write_generic function.
+ *
+ * Return -EIO on error, 0 on success
+ */
+static int iic_tpm_write(u8 addr, u8 *buffer, size_t len)
+{
+	return iic_tpm_write_generic(addr, buffer, len, SLEEP_DURATION_LOW,
+				     SLEEP_DURATION_HI, MAX_COUNT);
+}
+
+/*
+ * This function is needed especially for the cleanup situation after
+ * sending TPM_READY
+ * */
+static int iic_tpm_write_long(u8 addr, u8 *buffer, size_t len)
+{
+	return iic_tpm_write_generic(addr, buffer, len, SLEEP_DURATION_LONG_LOW,
+				     SLEEP_DURATION_LONG_HI, MAX_COUNT_LONG);
+}
+
+enum tis_access {
+	TPM_ACCESS_VALID = 0x80,
+	TPM_ACCESS_ACTIVE_LOCALITY = 0x20,
+	TPM_ACCESS_REQUEST_PENDING = 0x04,
+	TPM_ACCESS_REQUEST_USE = 0x02,
+};
+
+enum tis_status {
+	TPM_STS_VALID = 0x80,
+	TPM_STS_COMMAND_READY = 0x40,
+	TPM_STS_GO = 0x20,
+	TPM_STS_DATA_AVAIL = 0x10,
+	TPM_STS_DATA_EXPECT = 0x08,
+};
+
+enum tis_defaults {
+	TIS_SHORT_TIMEOUT = 750,	/* ms */
+	TIS_LONG_TIMEOUT = 2000,	/* 2 sec */
+};
+
+#define	TPM_ACCESS(l)			(0x0000 | ((l) << 4))
+#define	TPM_STS(l)			(0x0001 | ((l) << 4))
+#define	TPM_DATA_FIFO(l)		(0x0005 | ((l) << 4))
+#define	TPM_DID_VID(l)			(0x0006 | ((l) << 4))
+
+static int check_locality(struct tpm_chip *chip, int loc)
+{
+	u8 buf;
+	int rc;
+
+	rc = iic_tpm_read(TPM_ACCESS(loc), &buf, 1);
+	if (rc < 0)
+		return rc;
+
+	if ((buf & (TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) ==
+	    (TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) {
+		chip->vendor.locality = loc;
+		return loc;
+	}
+
+	return -EIO;
+}
+
+/* implementation similar to tpm_tis */
+static void release_locality(struct tpm_chip *chip, int loc, int force)
+{
+	u8 buf;
+	if (iic_tpm_read(TPM_ACCESS(loc), &buf, 1) < 0)
+		return;
+
+	if (force || (buf & (TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) ==
+	    (TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) {
+		buf = TPM_ACCESS_ACTIVE_LOCALITY;
+		iic_tpm_write(TPM_ACCESS(loc), &buf, 1);
+	}
+}
+
+static int request_locality(struct tpm_chip *chip, int loc)
+{
+	unsigned long stop;
+	u8 buf = TPM_ACCESS_REQUEST_USE;
+
+	if (check_locality(chip, loc) >= 0)
+		return loc;
+
+	iic_tpm_write(TPM_ACCESS(loc), &buf, 1);
+
+	/* wait for burstcount */
+	stop = jiffies + chip->vendor.timeout_a;
+	do {
+		if (check_locality(chip, loc) >= 0)
+			return loc;
+		usleep_range(TPM_TIMEOUT_US_LOW, TPM_TIMEOUT_US_HI);
+	} while (time_before(jiffies, stop));
+
+	return -ETIME;
+}
+
+static u8 tpm_tis_i2c_status(struct tpm_chip *chip)
+{
+	/* NOTE: since I2C read may fail, return 0 in this case --> time-out */
+	u8 buf;
+	if (iic_tpm_read(TPM_STS(chip->vendor.locality), &buf, 1) < 0)
+		return 0;
+	else
+		return buf;
+}
+
+static void tpm_tis_i2c_ready(struct tpm_chip *chip)
+{
+	/* this causes the current command to be aborted */
+	u8 buf = TPM_STS_COMMAND_READY;
+	iic_tpm_write_long(TPM_STS(chip->vendor.locality), &buf, 1);
+}
+
+static ssize_t get_burstcount(struct tpm_chip *chip)
+{
+	unsigned long stop;
+	ssize_t burstcnt;
+	u8 buf[3];
+
+	/* wait for burstcount */
+	/* which timeout value, spec has 2 answers (c & d) */
+	stop = jiffies + chip->vendor.timeout_d;
+	do {
+		/* Note: STS is little endian */
+		if (iic_tpm_read(TPM_STS(chip->vendor.locality)+1, buf, 3) < 0)
+			burstcnt = 0;
+		else
+			burstcnt = (buf[2] << 16) + (buf[1] << 8) + buf[0];
+
+		if (burstcnt)
+			return burstcnt;
+
+		usleep_range(TPM_TIMEOUT_US_LOW, TPM_TIMEOUT_US_HI);
+	} while (time_before(jiffies, stop));
+	return -EBUSY;
+}
+
+static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
+			 int *status)
+{
+	unsigned long stop;
+
+	/* check current status */
+	*status = tpm_tis_i2c_status(chip);
+	if ((*status & mask) == mask)
+		return 0;
+
+	stop = jiffies + timeout;
+	do {
+		/* since we just checked the status, give the TPM some time */
+		usleep_range(TPM_TIMEOUT_US_LOW, TPM_TIMEOUT_US_HI);
+		*status = tpm_tis_i2c_status(chip);
+		if ((*status & mask) == mask)
+			return 0;
+
+	} while (time_before(jiffies, stop));
+
+	return -ETIME;
+}
+
+static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	size_t size = 0;
+	ssize_t burstcnt;
+	u8 retries = 0;
+	int rc;
+
+	while (size < count) {
+		burstcnt = get_burstcount(chip);
+
+		/* burstcnt < 0 = TPM is busy */
+		if (burstcnt < 0)
+			return burstcnt;
+
+		/* limit received data to max. left */
+		if (burstcnt > (count - size))
+			burstcnt = count - size;
+
+		rc = iic_tpm_read(TPM_DATA_FIFO(chip->vendor.locality),
+				  &(buf[size]), burstcnt);
+		if (rc == 0)
+			size += burstcnt;
+		else if (rc < 0)
+			retries++;
+
+		/* avoid endless loop in case of broken HW */
+		if (retries > MAX_COUNT_LONG)
+			return -EIO;
+
+	}
+	return size;
+}
+
+static int tpm_tis_i2c_recv(struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	int size = 0;
+	int expected, status;
+
+	if (count < TPM_HEADER_SIZE) {
+		size = -EIO;
+		goto out;
+	}
+
+	/* read first 10 bytes, including tag, paramsize, and result */
+	size = recv_data(chip, buf, TPM_HEADER_SIZE);
+	if (size < TPM_HEADER_SIZE) {
+		dev_err(chip->dev, "Unable to read header\n");
+		goto out;
+	}
+
+	expected = be32_to_cpu(*(__be32 *)(buf + 2));
+	if ((size_t) expected > count) {
+		size = -EIO;
+		goto out;
+	}
+
+	size += recv_data(chip, &buf[TPM_HEADER_SIZE],
+			  expected - TPM_HEADER_SIZE);
+	if (size < expected) {
+		dev_err(chip->dev, "Unable to read remainder of result\n");
+		size = -ETIME;
+		goto out;
+	}
+
+	wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, &status);
+	if (status & TPM_STS_DATA_AVAIL) {	/* retry? */
+		dev_err(chip->dev, "Error left over data\n");
+		size = -EIO;
+		goto out;
+	}
+
+out:
+	tpm_tis_i2c_ready(chip);
+	/* The TPM needs some time to clean up here,
+	 * so we sleep rather than keeping the bus busy
+	 */
+	usleep_range(SLEEP_DURATION_RESET_LOW, SLEEP_DURATION_RESET_HI);
+	release_locality(chip, chip->vendor.locality, 0);
+	return size;
+}
+
+static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len)
+{
+	int rc, status;
+	ssize_t burstcnt;
+	size_t count = 0;
+	u8 retries = 0;
+	u8 sts = TPM_STS_GO;
+
+	if (len > TPM_BUFSIZE)
+		return -E2BIG;	/* command is too long for our tpm, sorry */
+
+	if (request_locality(chip, 0) < 0)
+		return -EBUSY;
+
+	status = tpm_tis_i2c_status(chip);
+	if ((status & TPM_STS_COMMAND_READY) == 0) {
+		tpm_tis_i2c_ready(chip);
+		if (wait_for_stat
+		    (chip, TPM_STS_COMMAND_READY,
+		     chip->vendor.timeout_b, &status) < 0) {
+			rc = -ETIME;
+			goto out_err;
+		}
+	}
+
+	while (count < len - 1) {
+		burstcnt = get_burstcount(chip);
+
+		/* burstcnt < 0 = TPM is busy */
+		if (burstcnt < 0)
+			return burstcnt;
+
+		if (burstcnt > (len - 1 - count))
+			burstcnt = len - 1 - count;
+
+		rc = iic_tpm_write(TPM_DATA_FIFO(chip->vendor.locality),
+				   &(buf[count]), burstcnt);
+		if (rc == 0)
+			count += burstcnt;
+		else if (rc < 0)
+			retries++;
+
+		/* avoid endless loop in case of broken HW */
+		if (retries > MAX_COUNT_LONG) {
+			rc = -EIO;
+			goto out_err;
+		}
+
+		wait_for_stat(chip, TPM_STS_VALID,
+			      chip->vendor.timeout_c, &status);
+
+		if ((status & TPM_STS_DATA_EXPECT) == 0) {
+			rc = -EIO;
+			goto out_err;
+		}
+
+	}
+
+	/* write last byte */
+	iic_tpm_write(TPM_DATA_FIFO(chip->vendor.locality), &(buf[count]), 1);
+	wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, &status);
+	if ((status & TPM_STS_DATA_EXPECT) != 0) {
+		rc = -EIO;
+		goto out_err;
+	}
+
+	/* go and do it */
+	iic_tpm_write(TPM_STS(chip->vendor.locality), &sts, 1);
+
+	return len;
+out_err:
+	tpm_tis_i2c_ready(chip);
+	/* The TPM needs some time to clean up here,
+	 * so we sleep rather than keeping the bus busy
+	 */
+	usleep_range(SLEEP_DURATION_RESET_LOW, SLEEP_DURATION_RESET_HI);
+	release_locality(chip, chip->vendor.locality, 0);
+	return rc;
+}
+
+static const struct file_operations tis_ops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.open = tpm_open,
+	.read = tpm_read,
+	.write = tpm_write,
+	.release = tpm_release,
+};
+
+static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
+static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
+static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
+static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
+static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
+static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL);
+static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
+static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
+static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
+
+static struct attribute *tis_attrs[] = {
+	&dev_attr_pubek.attr,
+	&dev_attr_pcrs.attr,
+	&dev_attr_enabled.attr,
+	&dev_attr_active.attr,
+	&dev_attr_owned.attr,
+	&dev_attr_temp_deactivated.attr,
+	&dev_attr_caps.attr,
+	&dev_attr_cancel.attr,
+	&dev_attr_durations.attr,
+	&dev_attr_timeouts.attr,
+	NULL,
+};
+
+static struct attribute_group tis_attr_grp = {
+	.attrs = tis_attrs
+};
+
+static struct tpm_vendor_specific tpm_tis_i2c = {
+	.status = tpm_tis_i2c_status,
+	.recv = tpm_tis_i2c_recv,
+	.send = tpm_tis_i2c_send,
+	.cancel = tpm_tis_i2c_ready,
+	.req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
+	.req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
+	.req_canceled = TPM_STS_COMMAND_READY,
+	.attr_group = &tis_attr_grp,
+	.miscdev.fops = &tis_ops,
+};
+
+static int __devinit tpm_tis_i2c_init(struct device *dev)
+{
+	u32 vendor;
+	int rc = 0;
+	struct tpm_chip *chip;
+
+	chip = tpm_register_hardware(dev, &tpm_tis_i2c);
+	if (!chip) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
+	/* Disable interrupts */
+	chip->vendor.irq = 0;
+
+	/* Default timeouts */
+	chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+	chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
+	chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+	chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+
+	if (request_locality(chip, 0) != 0) {
+		rc = -ENODEV;
+		goto out_vendor;
+	}
+
+	/* read four bytes from DID_VID register */
+	if (iic_tpm_read(TPM_DID_VID(0), (u8 *)&vendor, 4) < 0) {
+		rc = -EIO;
+		goto out_release;
+	}
+
+	/* create DID_VID register value, after swapping to little-endian */
+	vendor = be32_to_cpu((__be32) vendor);
+
+	if (vendor != TPM_TIS_I2C_DID_VID) {
+		rc = -ENODEV;
+		goto out_release;
+	}
+
+	dev_info(dev, "1.2 TPM (device-id 0x%X)\n", vendor >> 16);
+
+	INIT_LIST_HEAD(&chip->vendor.list);
+	tpm_dev.chip = chip;
+
+	tpm_get_timeouts(chip);
+	tpm_do_selftest(chip);
+
+	return 0;
+
+out_release:
+	release_locality(chip, chip->vendor.locality, 1);
+
+out_vendor:
+	/* close file handles */
+	tpm_dev_vendor_release(chip);
+
+	/* remove hardware */
+	tpm_remove_hardware(chip->dev);
+
+	/* reset these pointers, otherwise we oops */
+	chip->dev->release = NULL;
+	chip->release = NULL;
+	tpm_dev.client = NULL;
+	dev_set_drvdata(chip->dev, chip);
+out_err:
+	return rc;
+}
+
+static const struct i2c_device_id tpm_tis_i2c_table[] = {
+	{"tpm_i2c_infineon", 0},
+	{},
+};
+
+MODULE_DEVICE_TABLE(i2c, tpm_tis_i2c_table);
+static SIMPLE_DEV_PM_OPS(tpm_tis_i2c_ops, tpm_pm_suspend, tpm_pm_resume);
+
+static int __devinit tpm_tis_i2c_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	int rc;
+	if (tpm_dev.client != NULL)
+		return -EBUSY;	/* We only support one client */
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev,
+			"no algorithms associated to the i2c bus\n");
+		return -ENODEV;
+	}
+
+	client->driver = &tpm_tis_i2c_driver;
+	tpm_dev.client = client;
+	rc = tpm_tis_i2c_init(&client->dev);
+	if (rc != 0) {
+		client->driver = NULL;
+		tpm_dev.client = NULL;
+		rc = -ENODEV;
+	}
+	return rc;
+}
+
+static int __devexit tpm_tis_i2c_remove(struct i2c_client *client)
+{
+	struct tpm_chip *chip = tpm_dev.chip;
+	release_locality(chip, chip->vendor.locality, 1);
+
+	/* close file handles */
+	tpm_dev_vendor_release(chip);
+
+	/* remove hardware */
+	tpm_remove_hardware(chip->dev);
+
+	/* reset these pointers, otherwise we oops */
+	chip->dev->release = NULL;
+	chip->release = NULL;
+	tpm_dev.client = NULL;
+	dev_set_drvdata(chip->dev, chip);
+
+	return 0;
+}
+
+static struct i2c_driver tpm_tis_i2c_driver = {
+
+	.id_table = tpm_tis_i2c_table,
+	.probe = tpm_tis_i2c_probe,
+	.remove = tpm_tis_i2c_remove,
+	.driver = {
+		   .name = "tpm_i2c_infineon",
+		   .owner = THIS_MODULE,
+		   .pm = &tpm_tis_i2c_ops,
+		   },
+};
+
+module_i2c_driver(tpm_tis_i2c_driver);
+MODULE_AUTHOR("Peter Huewe <peter.huewe@infineon.com>");
+MODULE_DESCRIPTION("TPM TIS I2C Infineon Driver");
+MODULE_VERSION("2.1.5");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
new file mode 100644
index 00000000000..efc4ab36a9d
--- /dev/null
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -0,0 +1,749 @@
+/*
+ * Copyright (C) 2012 IBM Corporation
+ *
+ * Author: Ashley Lai <adlai@us.ibm.com>
+ *
+ * Maintained by: <tpmdd-devel@lists.sourceforge.net>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/slab.h>
+#include <asm/vio.h>
+#include <asm/irq.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/wait.h>
+#include <asm/prom.h>
+
+#include "tpm.h"
+#include "tpm_ibmvtpm.h"
+
+static const char tpm_ibmvtpm_driver_name[] = "tpm_ibmvtpm";
+
+static struct vio_device_id tpm_ibmvtpm_device_table[] __devinitdata = {
+	{ "IBM,vtpm", "IBM,vtpm"},
+	{ "", "" }
+};
+MODULE_DEVICE_TABLE(vio, tpm_ibmvtpm_device_table);
+
+DECLARE_WAIT_QUEUE_HEAD(wq);
+
+/**
+ * ibmvtpm_send_crq - Send a CRQ request
+ * @vdev:	vio device struct
+ * @w1:		first word
+ * @w2:		second word
+ *
+ * Return value:
+ *	0 -Sucess
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_send_crq(struct vio_dev *vdev, u64 w1, u64 w2)
+{
+	return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, w1, w2);
+}
+
+/**
+ * ibmvtpm_get_data - Retrieve ibm vtpm data
+ * @dev:	device struct
+ *
+ * Return value:
+ *	vtpm device struct
+ */
+static struct ibmvtpm_dev *ibmvtpm_get_data(const struct device *dev)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+	if (chip)
+		return (struct ibmvtpm_dev *)chip->vendor.data;
+	return NULL;
+}
+
+/**
+ * tpm_ibmvtpm_recv - Receive data after send
+ * @chip:	tpm chip struct
+ * @buf:	buffer to read
+ * count:	size of buffer
+ *
+ * Return value:
+ *	Number of bytes read
+ */
+static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	struct ibmvtpm_dev *ibmvtpm;
+	u16 len;
+
+	ibmvtpm = (struct ibmvtpm_dev *)chip->vendor.data;
+
+	if (!ibmvtpm->rtce_buf) {
+		dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n");
+		return 0;
+	}
+
+	wait_event_interruptible(wq, ibmvtpm->crq_res.len != 0);
+
+	if (count < ibmvtpm->crq_res.len) {
+		dev_err(ibmvtpm->dev,
+			"Invalid size in recv: count=%ld, crq_size=%d\n",
+			count, ibmvtpm->crq_res.len);
+		return -EIO;
+	}
+
+	spin_lock(&ibmvtpm->rtce_lock);
+	memcpy((void *)buf, (void *)ibmvtpm->rtce_buf, ibmvtpm->crq_res.len);
+	memset(ibmvtpm->rtce_buf, 0, ibmvtpm->crq_res.len);
+	ibmvtpm->crq_res.valid = 0;
+	ibmvtpm->crq_res.msg = 0;
+	len = ibmvtpm->crq_res.len;
+	ibmvtpm->crq_res.len = 0;
+	spin_unlock(&ibmvtpm->rtce_lock);
+	return len;
+}
+
+/**
+ * tpm_ibmvtpm_send - Send tpm request
+ * @chip:	tpm chip struct
+ * @buf:	buffer contains data to send
+ * count:	size of buffer
+ *
+ * Return value:
+ *	Number of bytes sent
+ */
+static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	struct ibmvtpm_dev *ibmvtpm;
+	struct ibmvtpm_crq crq;
+	u64 *word = (u64 *) &crq;
+	int rc;
+
+	ibmvtpm = (struct ibmvtpm_dev *)chip->vendor.data;
+
+	if (!ibmvtpm->rtce_buf) {
+		dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n");
+		return 0;
+	}
+
+	if (count > ibmvtpm->rtce_size) {
+		dev_err(ibmvtpm->dev,
+			"Invalid size in send: count=%ld, rtce_size=%d\n",
+			count, ibmvtpm->rtce_size);
+		return -EIO;
+	}
+
+	spin_lock(&ibmvtpm->rtce_lock);
+	memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count);
+	crq.valid = (u8)IBMVTPM_VALID_CMD;
+	crq.msg = (u8)VTPM_TPM_COMMAND;
+	crq.len = (u16)count;
+	crq.data = ibmvtpm->rtce_dma_handle;
+
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, word[0], word[1]);
+	if (rc != H_SUCCESS) {
+		dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc);
+		rc = 0;
+	} else
+		rc = count;
+
+	spin_unlock(&ibmvtpm->rtce_lock);
+	return rc;
+}
+
+static void tpm_ibmvtpm_cancel(struct tpm_chip *chip)
+{
+	return;
+}
+
+static u8 tpm_ibmvtpm_status(struct tpm_chip *chip)
+{
+	return 0;
+}
+
+/**
+ * ibmvtpm_crq_get_rtce_size - Send a CRQ request to get rtce size
+ * @ibmvtpm:	vtpm device struct
+ *
+ * Return value:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_crq_get_rtce_size(struct ibmvtpm_dev *ibmvtpm)
+{
+	struct ibmvtpm_crq crq;
+	u64 *buf = (u64 *) &crq;
+	int rc;
+
+	crq.valid = (u8)IBMVTPM_VALID_CMD;
+	crq.msg = (u8)VTPM_GET_RTCE_BUFFER_SIZE;
+
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, buf[0], buf[1]);
+	if (rc != H_SUCCESS)
+		dev_err(ibmvtpm->dev,
+			"ibmvtpm_crq_get_rtce_size failed rc=%d\n", rc);
+
+	return rc;
+}
+
+/**
+ * ibmvtpm_crq_get_version - Send a CRQ request to get vtpm version
+ *			   - Note that this is vtpm version and not tpm version
+ * @ibmvtpm:	vtpm device struct
+ *
+ * Return value:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_crq_get_version(struct ibmvtpm_dev *ibmvtpm)
+{
+	struct ibmvtpm_crq crq;
+	u64 *buf = (u64 *) &crq;
+	int rc;
+
+	crq.valid = (u8)IBMVTPM_VALID_CMD;
+	crq.msg = (u8)VTPM_GET_VERSION;
+
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, buf[0], buf[1]);
+	if (rc != H_SUCCESS)
+		dev_err(ibmvtpm->dev,
+			"ibmvtpm_crq_get_version failed rc=%d\n", rc);
+
+	return rc;
+}
+
+/**
+ * ibmvtpm_crq_send_init_complete - Send a CRQ initialize complete message
+ * @ibmvtpm:	vtpm device struct
+ *
+ * Return value:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_crq_send_init_complete(struct ibmvtpm_dev *ibmvtpm)
+{
+	int rc;
+
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, INIT_CRQ_COMP_CMD, 0);
+	if (rc != H_SUCCESS)
+		dev_err(ibmvtpm->dev,
+			"ibmvtpm_crq_send_init_complete failed rc=%d\n", rc);
+
+	return rc;
+}
+
+/**
+ * ibmvtpm_crq_send_init - Send a CRQ initialize message
+ * @ibmvtpm:	vtpm device struct
+ *
+ * Return value:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_crq_send_init(struct ibmvtpm_dev *ibmvtpm)
+{
+	int rc;
+
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, INIT_CRQ_CMD, 0);
+	if (rc != H_SUCCESS)
+		dev_err(ibmvtpm->dev,
+			"ibmvtpm_crq_send_init failed rc=%d\n", rc);
+
+	return rc;
+}
+
+/**
+ * tpm_ibmvtpm_remove - ibm vtpm remove entry point
+ * @vdev:	vio device struct
+ *
+ * Return value:
+ *	0
+ */
+static int __devexit tpm_ibmvtpm_remove(struct vio_dev *vdev)
+{
+	struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(&vdev->dev);
+	int rc = 0;
+
+	free_irq(vdev->irq, ibmvtpm);
+	tasklet_kill(&ibmvtpm->tasklet);
+
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
+	} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
+
+	dma_unmap_single(ibmvtpm->dev, ibmvtpm->crq_dma_handle,
+			 CRQ_RES_BUF_SIZE, DMA_BIDIRECTIONAL);
+	free_page((unsigned long)ibmvtpm->crq_queue.crq_addr);
+
+	if (ibmvtpm->rtce_buf) {
+		dma_unmap_single(ibmvtpm->dev, ibmvtpm->rtce_dma_handle,
+				 ibmvtpm->rtce_size, DMA_BIDIRECTIONAL);
+		kfree(ibmvtpm->rtce_buf);
+	}
+
+	tpm_remove_hardware(ibmvtpm->dev);
+
+	kfree(ibmvtpm);
+
+	return 0;
+}
+
+/**
+ * tpm_ibmvtpm_get_desired_dma - Get DMA size needed by this driver
+ * @vdev:	vio device struct
+ *
+ * Return value:
+ *	Number of bytes the driver needs to DMA map
+ */
+static unsigned long tpm_ibmvtpm_get_desired_dma(struct vio_dev *vdev)
+{
+	struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(&vdev->dev);
+	return CRQ_RES_BUF_SIZE + ibmvtpm->rtce_size;
+}
+
+/**
+ * tpm_ibmvtpm_suspend - Suspend
+ * @dev:	device struct
+ *
+ * Return value:
+ *	0
+ */
+static int tpm_ibmvtpm_suspend(struct device *dev)
+{
+	struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(dev);
+	struct ibmvtpm_crq crq;
+	u64 *buf = (u64 *) &crq;
+	int rc = 0;
+
+	crq.valid = (u8)IBMVTPM_VALID_CMD;
+	crq.msg = (u8)VTPM_PREPARE_TO_SUSPEND;
+
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, buf[0], buf[1]);
+	if (rc != H_SUCCESS)
+		dev_err(ibmvtpm->dev,
+			"tpm_ibmvtpm_suspend failed rc=%d\n", rc);
+
+	return rc;
+}
+
+/**
+ * ibmvtpm_reset_crq - Reset CRQ
+ * @ibmvtpm:	ibm vtpm struct
+ *
+ * Return value:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_reset_crq(struct ibmvtpm_dev *ibmvtpm)
+{
+	int rc = 0;
+
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_FREE_CRQ,
+					ibmvtpm->vdev->unit_address);
+	} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
+
+	memset(ibmvtpm->crq_queue.crq_addr, 0, CRQ_RES_BUF_SIZE);
+	ibmvtpm->crq_queue.index = 0;
+
+	return plpar_hcall_norets(H_REG_CRQ, ibmvtpm->vdev->unit_address,
+				  ibmvtpm->crq_dma_handle, CRQ_RES_BUF_SIZE);
+}
+
+/**
+ * tpm_ibmvtpm_resume - Resume from suspend
+ * @dev:	device struct
+ *
+ * Return value:
+ *	0
+ */
+static int tpm_ibmvtpm_resume(struct device *dev)
+{
+	struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(dev);
+	unsigned long flags;
+	int rc = 0;
+
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_ENABLE_CRQ,
+					ibmvtpm->vdev->unit_address);
+	} while (rc == H_IN_PROGRESS || rc == H_BUSY || H_IS_LONG_BUSY(rc));
+
+	if (rc) {
+		dev_err(dev, "Error enabling ibmvtpm rc=%d\n", rc);
+		return rc;
+	}
+
+	spin_lock_irqsave(&ibmvtpm->lock, flags);
+	vio_disable_interrupts(ibmvtpm->vdev);
+	tasklet_schedule(&ibmvtpm->tasklet);
+	spin_unlock_irqrestore(&ibmvtpm->lock, flags);
+
+	rc = ibmvtpm_crq_send_init(ibmvtpm);
+	if (rc)
+		dev_err(dev, "Error send_init rc=%d\n", rc);
+
+	return rc;
+}
+
+static const struct file_operations ibmvtpm_ops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.open = tpm_open,
+	.read = tpm_read,
+	.write = tpm_write,
+	.release = tpm_release,
+};
+
+static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
+static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
+static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
+static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
+static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
+static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated,
+		   NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL);
+static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
+static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
+static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
+
+static struct attribute *ibmvtpm_attrs[] = {
+	&dev_attr_pubek.attr,
+	&dev_attr_pcrs.attr,
+	&dev_attr_enabled.attr,
+	&dev_attr_active.attr,
+	&dev_attr_owned.attr,
+	&dev_attr_temp_deactivated.attr,
+	&dev_attr_caps.attr,
+	&dev_attr_cancel.attr,
+	&dev_attr_durations.attr,
+	&dev_attr_timeouts.attr, NULL,
+};
+
+static struct attribute_group ibmvtpm_attr_grp = { .attrs = ibmvtpm_attrs };
+
+static const struct tpm_vendor_specific tpm_ibmvtpm = {
+	.recv = tpm_ibmvtpm_recv,
+	.send = tpm_ibmvtpm_send,
+	.cancel = tpm_ibmvtpm_cancel,
+	.status = tpm_ibmvtpm_status,
+	.req_complete_mask = 0,
+	.req_complete_val = 0,
+	.req_canceled = 0,
+	.attr_group = &ibmvtpm_attr_grp,
+	.miscdev = { .fops = &ibmvtpm_ops, },
+};
+
+static const struct dev_pm_ops tpm_ibmvtpm_pm_ops = {
+	.suspend = tpm_ibmvtpm_suspend,
+	.resume = tpm_ibmvtpm_resume,
+};
+
+/**
+ * ibmvtpm_crq_get_next - Get next responded crq
+ * @ibmvtpm	vtpm device struct
+ *
+ * Return value:
+ *	vtpm crq pointer
+ */
+static struct ibmvtpm_crq *ibmvtpm_crq_get_next(struct ibmvtpm_dev *ibmvtpm)
+{
+	struct ibmvtpm_crq_queue *crq_q = &ibmvtpm->crq_queue;
+	struct ibmvtpm_crq *crq = &crq_q->crq_addr[crq_q->index];
+
+	if (crq->valid & VTPM_MSG_RES) {
+		if (++crq_q->index == crq_q->num_entry)
+			crq_q->index = 0;
+		rmb();
+	} else
+		crq = NULL;
+	return crq;
+}
+
+/**
+ * ibmvtpm_crq_process - Process responded crq
+ * @crq		crq to be processed
+ * @ibmvtpm	vtpm device struct
+ *
+ * Return value:
+ *	Nothing
+ */
+static void ibmvtpm_crq_process(struct ibmvtpm_crq *crq,
+				struct ibmvtpm_dev *ibmvtpm)
+{
+	int rc = 0;
+
+	switch (crq->valid) {
+	case VALID_INIT_CRQ:
+		switch (crq->msg) {
+		case INIT_CRQ_RES:
+			dev_info(ibmvtpm->dev, "CRQ initialized\n");
+			rc = ibmvtpm_crq_send_init_complete(ibmvtpm);
+			if (rc)
+				dev_err(ibmvtpm->dev, "Unable to send CRQ init complete rc=%d\n", rc);
+			return;
+		case INIT_CRQ_COMP_RES:
+			dev_info(ibmvtpm->dev,
+				 "CRQ initialization completed\n");
+			return;
+		default:
+			dev_err(ibmvtpm->dev, "Unknown crq message type: %d\n", crq->msg);
+			return;
+		}
+		return;
+	case IBMVTPM_VALID_CMD:
+		switch (crq->msg) {
+		case VTPM_GET_RTCE_BUFFER_SIZE_RES:
+			if (crq->len <= 0) {
+				dev_err(ibmvtpm->dev, "Invalid rtce size\n");
+				return;
+			}
+			ibmvtpm->rtce_size = crq->len;
+			ibmvtpm->rtce_buf = kmalloc(ibmvtpm->rtce_size,
+						    GFP_KERNEL);
+			if (!ibmvtpm->rtce_buf) {
+				dev_err(ibmvtpm->dev, "Failed to allocate memory for rtce buffer\n");
+				return;
+			}
+
+			ibmvtpm->rtce_dma_handle = dma_map_single(ibmvtpm->dev,
+				ibmvtpm->rtce_buf, ibmvtpm->rtce_size,
+				DMA_BIDIRECTIONAL);
+
+			if (dma_mapping_error(ibmvtpm->dev,
+					      ibmvtpm->rtce_dma_handle)) {
+				kfree(ibmvtpm->rtce_buf);
+				ibmvtpm->rtce_buf = NULL;
+				dev_err(ibmvtpm->dev, "Failed to dma map rtce buffer\n");
+			}
+
+			return;
+		case VTPM_GET_VERSION_RES:
+			ibmvtpm->vtpm_version = crq->data;
+			return;
+		case VTPM_TPM_COMMAND_RES:
+			ibmvtpm->crq_res.valid = crq->valid;
+			ibmvtpm->crq_res.msg = crq->msg;
+			ibmvtpm->crq_res.len = crq->len;
+			ibmvtpm->crq_res.data = crq->data;
+			wake_up_interruptible(&wq);
+			return;
+		default:
+			return;
+		}
+	}
+	return;
+}
+
+/**
+ * ibmvtpm_interrupt -	Interrupt handler
+ * @irq:		irq number to handle
+ * @vtpm_instance:	vtpm that received interrupt
+ *
+ * Returns:
+ *	IRQ_HANDLED
+ **/
+static irqreturn_t ibmvtpm_interrupt(int irq, void *vtpm_instance)
+{
+	struct ibmvtpm_dev *ibmvtpm = (struct ibmvtpm_dev *) vtpm_instance;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ibmvtpm->lock, flags);
+	vio_disable_interrupts(ibmvtpm->vdev);
+	tasklet_schedule(&ibmvtpm->tasklet);
+	spin_unlock_irqrestore(&ibmvtpm->lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * ibmvtpm_tasklet - Interrupt handler tasklet
+ * @data:	ibm vtpm device struct
+ *
+ * Returns:
+ *	Nothing
+ **/
+static void ibmvtpm_tasklet(void *data)
+{
+	struct ibmvtpm_dev *ibmvtpm = data;
+	struct ibmvtpm_crq *crq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ibmvtpm->lock, flags);
+	while ((crq = ibmvtpm_crq_get_next(ibmvtpm)) != NULL) {
+		ibmvtpm_crq_process(crq, ibmvtpm);
+		crq->valid = 0;
+		wmb();
+	}
+
+	vio_enable_interrupts(ibmvtpm->vdev);
+	spin_unlock_irqrestore(&ibmvtpm->lock, flags);
+}
+
+/**
+ * tpm_ibmvtpm_probe - ibm vtpm initialize entry point
+ * @vio_dev:	vio device struct
+ * @id:		vio device id struct
+ *
+ * Return value:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int __devinit tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
+				   const struct vio_device_id *id)
+{
+	struct ibmvtpm_dev *ibmvtpm;
+	struct device *dev = &vio_dev->dev;
+	struct ibmvtpm_crq_queue *crq_q;
+	struct tpm_chip *chip;
+	int rc = -ENOMEM, rc1;
+
+	chip = tpm_register_hardware(dev, &tpm_ibmvtpm);
+	if (!chip) {
+		dev_err(dev, "tpm_register_hardware failed\n");
+		return -ENODEV;
+	}
+
+	ibmvtpm = kzalloc(sizeof(struct ibmvtpm_dev), GFP_KERNEL);
+	if (!ibmvtpm) {
+		dev_err(dev, "kzalloc for ibmvtpm failed\n");
+		goto cleanup;
+	}
+
+	crq_q = &ibmvtpm->crq_queue;
+	crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL);
+	if (!crq_q->crq_addr) {
+		dev_err(dev, "Unable to allocate memory for crq_addr\n");
+		goto cleanup;
+	}
+
+	crq_q->num_entry = CRQ_RES_BUF_SIZE / sizeof(*crq_q->crq_addr);
+	ibmvtpm->crq_dma_handle = dma_map_single(dev, crq_q->crq_addr,
+						 CRQ_RES_BUF_SIZE,
+						 DMA_BIDIRECTIONAL);
+
+	if (dma_mapping_error(dev, ibmvtpm->crq_dma_handle)) {
+		dev_err(dev, "dma mapping failed\n");
+		goto cleanup;
+	}
+
+	rc = plpar_hcall_norets(H_REG_CRQ, vio_dev->unit_address,
+				ibmvtpm->crq_dma_handle, CRQ_RES_BUF_SIZE);
+	if (rc == H_RESOURCE)
+		rc = ibmvtpm_reset_crq(ibmvtpm);
+
+	if (rc) {
+		dev_err(dev, "Unable to register CRQ rc=%d\n", rc);
+		goto reg_crq_cleanup;
+	}
+
+	tasklet_init(&ibmvtpm->tasklet, (void *)ibmvtpm_tasklet,
+		     (unsigned long)ibmvtpm);
+
+	rc = request_irq(vio_dev->irq, ibmvtpm_interrupt, 0,
+			 tpm_ibmvtpm_driver_name, ibmvtpm);
+	if (rc) {
+		dev_err(dev, "Error %d register irq 0x%x\n", rc, vio_dev->irq);
+		goto init_irq_cleanup;
+	}
+
+	rc = vio_enable_interrupts(vio_dev);
+	if (rc) {
+		dev_err(dev, "Error %d enabling interrupts\n", rc);
+		goto init_irq_cleanup;
+	}
+
+	crq_q->index = 0;
+
+	ibmvtpm->dev = dev;
+	ibmvtpm->vdev = vio_dev;
+	chip->vendor.data = (void *)ibmvtpm;
+
+	spin_lock_init(&ibmvtpm->lock);
+	spin_lock_init(&ibmvtpm->rtce_lock);
+
+	rc = ibmvtpm_crq_send_init(ibmvtpm);
+	if (rc)
+		goto init_irq_cleanup;
+
+	rc = ibmvtpm_crq_get_version(ibmvtpm);
+	if (rc)
+		goto init_irq_cleanup;
+
+	rc = ibmvtpm_crq_get_rtce_size(ibmvtpm);
+	if (rc)
+		goto init_irq_cleanup;
+
+	return rc;
+init_irq_cleanup:
+	tasklet_kill(&ibmvtpm->tasklet);
+	do {
+		rc1 = plpar_hcall_norets(H_FREE_CRQ, vio_dev->unit_address);
+	} while (rc1 == H_BUSY || H_IS_LONG_BUSY(rc1));
+reg_crq_cleanup:
+	dma_unmap_single(dev, ibmvtpm->crq_dma_handle, CRQ_RES_BUF_SIZE,
+			 DMA_BIDIRECTIONAL);
+cleanup:
+	if (ibmvtpm) {
+		if (crq_q->crq_addr)
+			free_page((unsigned long)crq_q->crq_addr);
+		kfree(ibmvtpm);
+	}
+
+	tpm_remove_hardware(dev);
+
+	return rc;
+}
+
+static struct vio_driver ibmvtpm_driver = {
+	.id_table	 = tpm_ibmvtpm_device_table,
+	.probe		 = tpm_ibmvtpm_probe,
+	.remove		 = tpm_ibmvtpm_remove,
+	.get_desired_dma = tpm_ibmvtpm_get_desired_dma,
+	.name		 = tpm_ibmvtpm_driver_name,
+	.pm		 = &tpm_ibmvtpm_pm_ops,
+};
+
+/**
+ * ibmvtpm_module_init - Initialize ibm vtpm module
+ *
+ * Return value:
+ *	0 -Success
+ *	Non-zero - Failure
+ */
+static int __init ibmvtpm_module_init(void)
+{
+	return vio_register_driver(&ibmvtpm_driver);
+}
+
+/**
+ * ibmvtpm_module_exit - Teardown ibm vtpm module
+ *
+ * Return value:
+ *	Nothing
+ */
+static void __exit ibmvtpm_module_exit(void)
+{
+	vio_unregister_driver(&ibmvtpm_driver);
+}
+
+module_init(ibmvtpm_module_init);
+module_exit(ibmvtpm_module_exit);
+
+MODULE_AUTHOR("adlai@us.ibm.com");
+MODULE_DESCRIPTION("IBM vTPM Driver");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/tpm/tpm_ibmvtpm.h b/drivers/char/tpm/tpm_ibmvtpm.h
new file mode 100644
index 00000000000..4296eb4b4d8
--- /dev/null
+++ b/drivers/char/tpm/tpm_ibmvtpm.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2012 IBM Corporation
+ *
+ * Author: Ashley Lai <adlai@us.ibm.com>
+ *
+ * Maintained by: <tpmdd-devel@lists.sourceforge.net>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ */
+
+#ifndef __TPM_IBMVTPM_H__
+#define __TPM_IBMVTPM_H__
+
+/* vTPM Message Format 1 */
+struct ibmvtpm_crq {
+	u8 valid;
+	u8 msg;
+	u16 len;
+	u32 data;
+	u64 reserved;
+} __attribute__((packed, aligned(8)));
+
+struct ibmvtpm_crq_queue {
+	struct ibmvtpm_crq *crq_addr;
+	u32 index;
+	u32 num_entry;
+};
+
+struct ibmvtpm_dev {
+	struct device *dev;
+	struct vio_dev *vdev;
+	struct ibmvtpm_crq_queue crq_queue;
+	dma_addr_t crq_dma_handle;
+	spinlock_t lock;
+	struct tasklet_struct tasklet;
+	u32 rtce_size;
+	void __iomem *rtce_buf;
+	dma_addr_t rtce_dma_handle;
+	spinlock_t rtce_lock;
+	struct ibmvtpm_crq crq_res;
+	u32 vtpm_version;
+};
+
+#define CRQ_RES_BUF_SIZE	PAGE_SIZE
+
+/* Initialize CRQ */
+#define INIT_CRQ_CMD		0xC001000000000000LL /* Init cmd */
+#define INIT_CRQ_COMP_CMD	0xC002000000000000LL /* Init complete cmd */
+#define INIT_CRQ_RES		0x01	/* Init respond */
+#define INIT_CRQ_COMP_RES	0x02	/* Init complete respond */
+#define VALID_INIT_CRQ		0xC0	/* Valid command for init crq */
+
+/* vTPM CRQ response is the message type | 0x80 */
+#define VTPM_MSG_RES		0x80
+#define IBMVTPM_VALID_CMD	0x80
+
+/* vTPM CRQ message types */
+#define VTPM_GET_VERSION			0x01
+#define VTPM_GET_VERSION_RES			(0x01 | VTPM_MSG_RES)
+
+#define VTPM_TPM_COMMAND			0x02
+#define VTPM_TPM_COMMAND_RES			(0x02 | VTPM_MSG_RES)
+
+#define VTPM_GET_RTCE_BUFFER_SIZE		0x03
+#define VTPM_GET_RTCE_BUFFER_SIZE_RES		(0x03 | VTPM_MSG_RES)
+
+#define VTPM_PREPARE_TO_SUSPEND			0x04
+#define VTPM_PREPARE_TO_SUSPEND_RES		(0x04 | VTPM_MSG_RES)
+
+#endif
diff --git a/drivers/char/tpm/tpm_of.c b/drivers/char/tpm/tpm_of.c
new file mode 100644
index 00000000000..98ba2bd1a35
--- /dev/null
+++ b/drivers/char/tpm/tpm_of.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2012 IBM Corporation
+ *
+ * Author: Ashley Lai <adlai@us.ibm.com>
+ *
+ * Maintained by: <tpmdd-devel@lists.sourceforge.net>
+ *
+ * Read the event log created by the firmware on PPC64
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/of.h>
+
+#include "tpm.h"
+#include "tpm_eventlog.h"
+
+int read_log(struct tpm_bios_log *log)
+{
+	struct device_node *np;
+	const u32 *sizep;
+	const __be64 *basep;
+
+	if (log->bios_event_log != NULL) {
+		pr_err("%s: ERROR - Eventlog already initialized\n", __func__);
+		return -EFAULT;
+	}
+
+	np = of_find_node_by_name(NULL, "ibm,vtpm");
+	if (!np) {
+		pr_err("%s: ERROR - IBMVTPM not supported\n", __func__);
+		return -ENODEV;
+	}
+
+	sizep = of_get_property(np, "linux,sml-size", NULL);
+	if (sizep == NULL) {
+		pr_err("%s: ERROR - SML size not found\n", __func__);
+		goto cleanup_eio;
+	}
+	if (*sizep == 0) {
+		pr_err("%s: ERROR - event log area empty\n", __func__);
+		goto cleanup_eio;
+	}
+
+	basep = of_get_property(np, "linux,sml-base", NULL);
+	if (basep == NULL) {
+		pr_err(KERN_ERR "%s: ERROR - SML not found\n", __func__);
+		goto cleanup_eio;
+	}
+
+	of_node_put(np);
+	log->bios_event_log = kmalloc(*sizep, GFP_KERNEL);
+	if (!log->bios_event_log) {
+		pr_err("%s: ERROR - Not enough memory for BIOS measurements\n",
+		       __func__);
+		return -ENOMEM;
+	}
+
+	log->bios_event_log_end = log->bios_event_log + *sizep;
+
+	memcpy(log->bios_event_log, __va(be64_to_cpup(basep)), *sizep);
+
+	return 0;
+
+cleanup_eio:
+	of_node_put(np);
+	return -EIO;
+}
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
new file mode 100644
index 00000000000..f27b58cfae9
--- /dev/null
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -0,0 +1,461 @@
+#include <linux/acpi.h>
+#include <acpi/acpi_drivers.h>
+#include "tpm.h"
+
+static const u8 tpm_ppi_uuid[] = {
+	0xA6, 0xFA, 0xDD, 0x3D,
+	0x1B, 0x36,
+	0xB4, 0x4E,
+	0xA4, 0x24,
+	0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53
+};
+static char *tpm_device_name = "TPM";
+
+#define TPM_PPI_REVISION_ID	1
+#define TPM_PPI_FN_VERSION	1
+#define TPM_PPI_FN_SUBREQ	2
+#define TPM_PPI_FN_GETREQ	3
+#define TPM_PPI_FN_GETACT	4
+#define TPM_PPI_FN_GETRSP	5
+#define TPM_PPI_FN_SUBREQ2	7
+#define TPM_PPI_FN_GETOPR	8
+#define PPI_TPM_REQ_MAX		22
+#define PPI_VS_REQ_START	128
+#define PPI_VS_REQ_END		255
+#define PPI_VERSION_LEN		3
+
+static acpi_status ppi_callback(acpi_handle handle, u32 level, void *context,
+				void **return_value)
+{
+	acpi_status status;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+	if (strstr(buffer.pointer, context) != NULL) {
+		*return_value = handle;
+		kfree(buffer.pointer);
+		return AE_CTRL_TERMINATE;
+	}
+	return AE_OK;
+}
+
+static inline void ppi_assign_params(union acpi_object params[4],
+				     u64 function_num)
+{
+	params[0].type = ACPI_TYPE_BUFFER;
+	params[0].buffer.length = sizeof(tpm_ppi_uuid);
+	params[0].buffer.pointer = (char *)tpm_ppi_uuid;
+	params[1].type = ACPI_TYPE_INTEGER;
+	params[1].integer.value = TPM_PPI_REVISION_ID;
+	params[2].type = ACPI_TYPE_INTEGER;
+	params[2].integer.value = function_num;
+	params[3].type = ACPI_TYPE_PACKAGE;
+	params[3].package.count = 0;
+	params[3].package.elements = NULL;
+}
+
+static ssize_t tpm_show_ppi_version(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object params[4];
+	union acpi_object *obj;
+
+	input.count = 4;
+	ppi_assign_params(params, TPM_PPI_FN_VERSION);
+	input.pointer = params;
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, ppi_callback, NULL,
+				     tpm_device_name, &handle);
+	if (ACPI_FAILURE(status))
+		return -ENXIO;
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					 ACPI_TYPE_STRING);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	obj = (union acpi_object *)output.pointer;
+	status = scnprintf(buf, PAGE_SIZE, "%s\n", obj->string.pointer);
+	kfree(output.pointer);
+	return status;
+}
+
+static ssize_t tpm_show_ppi_request(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object params[4];
+	union acpi_object *ret_obj;
+
+	input.count = 4;
+	ppi_assign_params(params, TPM_PPI_FN_GETREQ);
+	input.pointer = params;
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, ppi_callback, NULL,
+				     tpm_device_name, &handle);
+	if (ACPI_FAILURE(status))
+		return -ENXIO;
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					    ACPI_TYPE_PACKAGE);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	/*
+	 * output.pointer should be of package type, including two integers.
+	 * The first is function return code, 0 means success and 1 means
+	 * error. The second is pending TPM operation requested by the OS, 0
+	 * means none and >0 means operation value.
+	 */
+	ret_obj = ((union acpi_object *)output.pointer)->package.elements;
+	if (ret_obj->type == ACPI_TYPE_INTEGER) {
+		if (ret_obj->integer.value) {
+			status = -EFAULT;
+			goto cleanup;
+		}
+		ret_obj++;
+		if (ret_obj->type == ACPI_TYPE_INTEGER)
+			status = scnprintf(buf, PAGE_SIZE, "%llu\n",
+					   ret_obj->integer.value);
+		else
+			status = -EINVAL;
+	} else {
+		status = -EINVAL;
+	}
+cleanup:
+	kfree(output.pointer);
+	return status;
+}
+
+static ssize_t tpm_store_ppi_request(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	char version[PPI_VERSION_LEN + 1];
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object params[4];
+	union acpi_object obj;
+	u32 req;
+	u64 ret;
+
+	input.count = 4;
+	ppi_assign_params(params, TPM_PPI_FN_VERSION);
+	input.pointer = params;
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, ppi_callback, NULL,
+				     tpm_device_name, &handle);
+	if (ACPI_FAILURE(status))
+		return -ENXIO;
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					    ACPI_TYPE_STRING);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	strncpy(version,
+		((union acpi_object *)output.pointer)->string.pointer,
+		PPI_VERSION_LEN);
+	kfree(output.pointer);
+	output.length = ACPI_ALLOCATE_BUFFER;
+	output.pointer = NULL;
+	/*
+	 * the function to submit TPM operation request to pre-os environment
+	 * is updated with function index from SUBREQ to SUBREQ2 since PPI
+	 * version 1.1
+	 */
+	if (strcmp(version, "1.1") == -1)
+		params[2].integer.value = TPM_PPI_FN_SUBREQ;
+	else
+		params[2].integer.value = TPM_PPI_FN_SUBREQ2;
+	/*
+	 * PPI spec defines params[3].type as ACPI_TYPE_PACKAGE. Some BIOS
+	 * accept buffer/string/integer type, but some BIOS accept buffer/
+	 * string/package type. For PPI version 1.0 and 1.1, use buffer type
+	 * for compatibility, and use package type since 1.2 according to spec.
+	 */
+	if (strcmp(version, "1.2") == -1) {
+		params[3].type = ACPI_TYPE_BUFFER;
+		params[3].buffer.length = sizeof(req);
+		sscanf(buf, "%d", &req);
+		params[3].buffer.pointer = (char *)&req;
+	} else {
+		params[3].package.count = 1;
+		obj.type = ACPI_TYPE_INTEGER;
+		sscanf(buf, "%llu", &obj.integer.value);
+		params[3].package.elements = &obj;
+	}
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					    ACPI_TYPE_INTEGER);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	ret = ((union acpi_object *)output.pointer)->integer.value;
+	if (ret == 0)
+		status = (acpi_status)count;
+	else if (ret == 1)
+		status = -EPERM;
+	else
+		status = -EFAULT;
+	kfree(output.pointer);
+	return status;
+}
+
+static ssize_t tpm_show_ppi_transition_action(struct device *dev,
+					      struct device_attribute *attr,
+					      char *buf)
+{
+	char version[PPI_VERSION_LEN + 1];
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object params[4];
+	u32 ret;
+	char *info[] = {
+		"None",
+		"Shutdown",
+		"Reboot",
+		"OS Vendor-specific",
+		"Error",
+	};
+	input.count = 4;
+	ppi_assign_params(params, TPM_PPI_FN_VERSION);
+	input.pointer = params;
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, ppi_callback, NULL,
+				     tpm_device_name, &handle);
+	if (ACPI_FAILURE(status))
+		return -ENXIO;
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					    ACPI_TYPE_STRING);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	strncpy(version,
+		((union acpi_object *)output.pointer)->string.pointer,
+		PPI_VERSION_LEN);
+	/*
+	 * PPI spec defines params[3].type as empty package, but some platforms
+	 * (e.g. Capella with PPI 1.0) need integer/string/buffer type, so for
+	 * compatibility, define params[3].type as buffer, if PPI version < 1.2
+	 */
+	if (strcmp(version, "1.2") == -1) {
+		params[3].type = ACPI_TYPE_BUFFER;
+		params[3].buffer.length =  0;
+		params[3].buffer.pointer = NULL;
+	}
+	params[2].integer.value = TPM_PPI_FN_GETACT;
+	kfree(output.pointer);
+	output.length = ACPI_ALLOCATE_BUFFER;
+	output.pointer = NULL;
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					    ACPI_TYPE_INTEGER);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	ret = ((union acpi_object *)output.pointer)->integer.value;
+	if (ret < ARRAY_SIZE(info) - 1)
+		status = scnprintf(buf, PAGE_SIZE, "%d: %s\n", ret, info[ret]);
+	else
+		status = scnprintf(buf, PAGE_SIZE, "%d: %s\n", ret,
+				   info[ARRAY_SIZE(info)-1]);
+	kfree(output.pointer);
+	return status;
+}
+
+static ssize_t tpm_show_ppi_response(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object params[4];
+	union acpi_object *ret_obj;
+	u64 req;
+
+	input.count = 4;
+	ppi_assign_params(params, TPM_PPI_FN_GETRSP);
+	input.pointer = params;
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, ppi_callback, NULL,
+				     tpm_device_name, &handle);
+	if (ACPI_FAILURE(status))
+		return -ENXIO;
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					    ACPI_TYPE_PACKAGE);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+	/*
+	 * parameter output.pointer should be of package type, including
+	 * 3 integers. The first means function return code, the second means
+	 * most recent TPM operation request, and the last means response to
+	 * the most recent TPM operation request. Only if the first is 0, and
+	 * the second integer is not 0, the response makes sense.
+	 */
+	ret_obj = ((union acpi_object *)output.pointer)->package.elements;
+	if (ret_obj->type != ACPI_TYPE_INTEGER) {
+		status = -EINVAL;
+		goto cleanup;
+	}
+	if (ret_obj->integer.value) {
+		status = -EFAULT;
+		goto cleanup;
+	}
+	ret_obj++;
+	if (ret_obj->type != ACPI_TYPE_INTEGER) {
+		status = -EINVAL;
+		goto cleanup;
+	}
+	if (ret_obj->integer.value) {
+		req = ret_obj->integer.value;
+		ret_obj++;
+		if (ret_obj->type != ACPI_TYPE_INTEGER) {
+			status = -EINVAL;
+			goto cleanup;
+		}
+		if (ret_obj->integer.value == 0)
+			status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req,
+					   "0: Success");
+		else if (ret_obj->integer.value == 0xFFFFFFF0)
+			status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req,
+					   "0xFFFFFFF0: User Abort");
+		else if (ret_obj->integer.value == 0xFFFFFFF1)
+			status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req,
+					   "0xFFFFFFF1: BIOS Failure");
+		else if (ret_obj->integer.value >= 1 &&
+			 ret_obj->integer.value <= 0x00000FFF)
+			status = scnprintf(buf, PAGE_SIZE, "%llu %llu: %s\n",
+					   req, ret_obj->integer.value,
+					   "Corresponding TPM error");
+		else
+			status = scnprintf(buf, PAGE_SIZE, "%llu %llu: %s\n",
+					   req, ret_obj->integer.value,
+					   "Error");
+	} else {
+		status = scnprintf(buf, PAGE_SIZE, "%llu: %s\n",
+				   ret_obj->integer.value, "No Recent Request");
+	}
+cleanup:
+	kfree(output.pointer);
+	return status;
+}
+
+static ssize_t show_ppi_operations(char *buf, u32 start, u32 end)
+{
+	char *str = buf;
+	char version[PPI_VERSION_LEN];
+	acpi_handle handle;
+	acpi_status status;
+	struct acpi_object_list input;
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object params[4];
+	union acpi_object obj;
+	int i;
+	u32 ret;
+	char *info[] = {
+		"Not implemented",
+		"BIOS only",
+		"Blocked for OS by BIOS",
+		"User required",
+		"User not required",
+	};
+	input.count = 4;
+	ppi_assign_params(params, TPM_PPI_FN_VERSION);
+	input.pointer = params;
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, ppi_callback, NULL,
+				     tpm_device_name, &handle);
+	if (ACPI_FAILURE(status))
+		return -ENXIO;
+
+	status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output,
+					 ACPI_TYPE_STRING);
+	if (ACPI_FAILURE(status))
+		return -ENOMEM;
+
+	strncpy(version,
+		((union acpi_object *)output.pointer)->string.pointer,
+		PPI_VERSION_LEN);
+	kfree(output.pointer);
+	output.length = ACPI_ALLOCATE_BUFFER;
+	output.pointer = NULL;
+	if (strcmp(version, "1.2") == -1)
+		return -EPERM;
+
+	params[2].integer.value = TPM_PPI_FN_GETOPR;
+	params[3].package.count = 1;
+	obj.type = ACPI_TYPE_INTEGER;
+	params[3].package.elements = &obj;
+	for (i = start; i <= end; i++) {
+		obj.integer.value = i;
+		status = acpi_evaluate_object_typed(handle, "_DSM",
+			 &input, &output, ACPI_TYPE_INTEGER);
+		if (ACPI_FAILURE(status))
+			return -ENOMEM;
+
+		ret = ((union acpi_object *)output.pointer)->integer.value;
+		if (ret > 0 && ret < ARRAY_SIZE(info))
+			str += scnprintf(str, PAGE_SIZE, "%d %d: %s\n",
+					 i, ret, info[ret]);
+		kfree(output.pointer);
+		output.length = ACPI_ALLOCATE_BUFFER;
+		output.pointer = NULL;
+	}
+	return str - buf;
+}
+
+static ssize_t tpm_show_ppi_tcg_operations(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	return show_ppi_operations(buf, 0, PPI_TPM_REQ_MAX);
+}
+
+static ssize_t tpm_show_ppi_vs_operations(struct device *dev,
+					  struct device_attribute *attr,
+					  char *buf)
+{
+	return show_ppi_operations(buf, PPI_VS_REQ_START, PPI_VS_REQ_END);
+}
+
+static DEVICE_ATTR(version, S_IRUGO, tpm_show_ppi_version, NULL);
+static DEVICE_ATTR(request, S_IRUGO | S_IWUSR | S_IWGRP,
+		   tpm_show_ppi_request, tpm_store_ppi_request);
+static DEVICE_ATTR(transition_action, S_IRUGO,
+		   tpm_show_ppi_transition_action, NULL);
+static DEVICE_ATTR(response, S_IRUGO, tpm_show_ppi_response, NULL);
+static DEVICE_ATTR(tcg_operations, S_IRUGO, tpm_show_ppi_tcg_operations, NULL);
+static DEVICE_ATTR(vs_operations, S_IRUGO, tpm_show_ppi_vs_operations, NULL);
+
+static struct attribute *ppi_attrs[] = {
+	&dev_attr_version.attr,
+	&dev_attr_request.attr,
+	&dev_attr_transition_action.attr,
+	&dev_attr_response.attr,
+	&dev_attr_tcg_operations.attr,
+	&dev_attr_vs_operations.attr, NULL,
+};
+static struct attribute_group ppi_attr_grp = {
+	.attrs = ppi_attrs
+};
+
+ssize_t sys_add_ppi(struct kobject *parent)
+{
+	struct kobject *ppi;
+	ppi = kobject_create_and_add("ppi", parent);
+	if (sysfs_create_group(ppi, &ppi_attr_grp))
+		return -EFAULT;
+	else
+		return 0;
+}
+EXPORT_SYMBOL_GPL(sys_add_ppi);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 89682fa8801..6bdf2671254 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -705,6 +705,7 @@ out_err:
 	return rc;
 }
 
+#if defined(CONFIG_PNP) || defined(CONFIG_PM_SLEEP)
 static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
 {
 	u32 intmask;
@@ -725,7 +726,7 @@ static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
 	iowrite32(intmask,
 		  chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality));
 }
-
+#endif
 
 #ifdef CONFIG_PNP
 static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev,
@@ -807,6 +808,7 @@ module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
 MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
 #endif
 
+#ifdef CONFIG_PM_SLEEP
 static int tpm_tis_resume(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
@@ -816,6 +818,7 @@ static int tpm_tis_resume(struct device *dev)
 
 	return tpm_pm_resume(dev);
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(tpm_tis_pm, tpm_pm_suspend, tpm_tis_resume);
 
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index 46b77ede84c..af98f6d6509 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -67,7 +67,7 @@ static int tpk_printk(const unsigned char *buf, int count)
 				tmp[tpk_curr + 1] = '\0';
 				printk(KERN_INFO "%s%s", tpk_tag, tmp);
 				tpk_curr = 0;
-				if (buf[i + 1] == '\n')
+				if ((i + 1) < count && buf[i + 1] == '\n')
 					i++;
 				break;
 			case '\n':
@@ -178,11 +178,17 @@ static struct tty_driver *ttyprintk_driver;
 static int __init ttyprintk_init(void)
 {
 	int ret = -ENOMEM;
-	void *rp;
 
-	ttyprintk_driver = alloc_tty_driver(1);
-	if (!ttyprintk_driver)
-		return ret;
+	tty_port_init(&tpk_port.port);
+	tpk_port.port.ops = &null_ops;
+	mutex_init(&tpk_port.port_write_mutex);
+
+	ttyprintk_driver = tty_alloc_driver(1,
+			TTY_DRIVER_RESET_TERMIOS |
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_UNNUMBERED_NODE);
+	if (IS_ERR(ttyprintk_driver))
+		return PTR_ERR(ttyprintk_driver);
 
 	ttyprintk_driver->driver_name = "ttyprintk";
 	ttyprintk_driver->name = "ttyprintk";
@@ -191,9 +197,8 @@ static int __init ttyprintk_init(void)
 	ttyprintk_driver->type = TTY_DRIVER_TYPE_CONSOLE;
 	ttyprintk_driver->init_termios = tty_std_termios;
 	ttyprintk_driver->init_termios.c_oflag = OPOST | OCRNL | ONOCR | ONLRET;
-	ttyprintk_driver->flags = TTY_DRIVER_RESET_TERMIOS |
-		TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
 	tty_set_operations(ttyprintk_driver, &ttyprintk_ops);
+	tty_port_link_device(&tpk_port.port, ttyprintk_driver, 0);
 
 	ret = tty_register_driver(ttyprintk_driver);
 	if (ret < 0) {
@@ -201,22 +206,10 @@ static int __init ttyprintk_init(void)
 		goto error;
 	}
 
-	/* create our unnumbered device */
-	rp = device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 3), NULL,
-				ttyprintk_driver->name);
-	if (IS_ERR(rp)) {
-		printk(KERN_ERR "Couldn't create ttyprintk device\n");
-		ret = PTR_ERR(rp);
-		goto error;
-	}
-
-	tty_port_init(&tpk_port.port);
-	tpk_port.port.ops = &null_ops;
-	mutex_init(&tpk_port.port_write_mutex);
-
 	return 0;
 
 error:
+	tty_unregister_driver(ttyprintk_driver);
 	put_tty_driver(ttyprintk_driver);
 	ttyprintk_driver = NULL;
 	return ret;
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index cdf2f5451c7..060a672ebb7 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1941,7 +1941,17 @@ static int __init init(void)
 	INIT_LIST_HEAD(&pdrvdata.consoles);
 	INIT_LIST_HEAD(&pdrvdata.portdevs);
 
-	return register_virtio_driver(&virtio_console);
+	err = register_virtio_driver(&virtio_console);
+	if (err < 0) {
+		pr_err("Error %d registering virtio driver\n", err);
+		goto free;
+	}
+	return 0;
+free:
+	if (pdrvdata.debugfs_dir)
+		debugfs_remove_recursive(pdrvdata.debugfs_dir);
+	class_destroy(pdrvdata.class);
+	return err;
 }
 
 static void __exit fini(void)
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 7f0b5ca7851..bace9e98f75 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -40,4 +40,17 @@ config COMMON_CLK_WM831X
           Supports the clocking subsystem of the WM831x/2x series of
 	  PMICs from Wolfson Microlectronics.
 
+config COMMON_CLK_VERSATILE
+	bool "Clock driver for ARM Reference designs"
+	depends on ARCH_INTEGRATOR || ARCH_REALVIEW
+	---help---
+          Supports clocking on ARM Reference designs Integrator/AP,
+	  Integrator/CP, RealView PB1176, EB, PB11MP and PBX.
+
+config COMMON_CLK_MAX77686
+	tristate "Clock driver for Maxim 77686 MFD"
+	depends on MFD_MAX77686
+	---help---
+	  This driver supports Maxim 77686 crystal oscillator clock. 
+
 endmenu
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 5869ea38705..71a25b91de0 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -1,15 +1,25 @@
 # common clock types
+obj-$(CONFIG_HAVE_CLK)		+= clk-devres.o
 obj-$(CONFIG_CLKDEV_LOOKUP)	+= clkdev.o
 obj-$(CONFIG_COMMON_CLK)	+= clk.o clk-fixed-rate.o clk-gate.o \
 				   clk-mux.o clk-divider.o clk-fixed-factor.o
 # SoCs specific
+obj-$(CONFIG_ARCH_BCM2835)	+= clk-bcm2835.o
 obj-$(CONFIG_ARCH_NOMADIK)	+= clk-nomadik.o
 obj-$(CONFIG_ARCH_HIGHBANK)	+= clk-highbank.o
 obj-$(CONFIG_ARCH_MXS)		+= mxs/
 obj-$(CONFIG_ARCH_SOCFPGA)	+= socfpga/
 obj-$(CONFIG_PLAT_SPEAR)	+= spear/
 obj-$(CONFIG_ARCH_U300)		+= clk-u300.o
-obj-$(CONFIG_ARCH_INTEGRATOR)	+= versatile/
+obj-$(CONFIG_COMMON_CLK_VERSATILE) += versatile/
+obj-$(CONFIG_ARCH_PRIMA2)	+= clk-prima2.o
+ifeq ($(CONFIG_COMMON_CLK), y)
+obj-$(CONFIG_ARCH_MMP)		+= mmp/
+endif
+obj-$(CONFIG_MACH_LOONGSON1)	+= clk-ls1x.o
+obj-$(CONFIG_ARCH_U8500)	+= ux500/
+obj-$(CONFIG_ARCH_VT8500)	+= clk-vt8500.o
 
 # Chip specific
 obj-$(CONFIG_COMMON_CLK_WM831X) += clk-wm831x.o
+obj-$(CONFIG_COMMON_CLK_MAX77686) += clk-max77686.o
diff --git a/drivers/clk/clk-bcm2835.c b/drivers/clk/clk-bcm2835.c
new file mode 100644
index 00000000000..67ad16b20b8
--- /dev/null
+++ b/drivers/clk/clk-bcm2835.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010 Broadcom
+ * Copyright (C) 2012 Stephen Warren
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/bcm2835.h>
+
+/*
+ * These are fixed clocks. They're probably not all root clocks and it may
+ * be possible to turn them on and off but until this is mapped out better
+ * it's the only way they can be used.
+ */
+void __init bcm2835_init_clocks(void)
+{
+	struct clk *clk;
+	int ret;
+
+	clk = clk_register_fixed_rate(NULL, "sys_pclk", NULL, CLK_IS_ROOT,
+					250000000);
+	if (!clk)
+		pr_err("sys_pclk not registered\n");
+
+	clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT,
+					126000000);
+	if (!clk)
+		pr_err("apb_pclk not registered\n");
+
+	clk = clk_register_fixed_rate(NULL, "uart0_pclk", NULL, CLK_IS_ROOT,
+					3000000);
+	if (!clk)
+		pr_err("uart0_pclk not registered\n");
+	ret = clk_register_clkdev(clk, NULL, "20201000.uart");
+	if (ret)
+		pr_err("uart0_pclk alias not registered\n");
+
+	clk = clk_register_fixed_rate(NULL, "uart1_pclk", NULL, CLK_IS_ROOT,
+					125000000);
+	if (!clk)
+		pr_err("uart1_pclk not registered\n");
+	ret = clk_register_clkdev(clk, NULL, "20215000.uart");
+	if (ret)
+		pr_err("uart0_pclk alias not registered\n");
+}
diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c
new file mode 100644
index 00000000000..8f571548870
--- /dev/null
+++ b/drivers/clk/clk-devres.c
@@ -0,0 +1,55 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/gfp.h>
+
+static void devm_clk_release(struct device *dev, void *res)
+{
+	clk_put(*(struct clk **)res);
+}
+
+struct clk *devm_clk_get(struct device *dev, const char *id)
+{
+	struct clk **ptr, *clk;
+
+	ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	clk = clk_get(dev, id);
+	if (!IS_ERR(clk)) {
+		*ptr = clk;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return clk;
+}
+EXPORT_SYMBOL(devm_clk_get);
+
+static int devm_clk_match(struct device *dev, void *res, void *data)
+{
+	struct clk **c = res;
+	if (!c || !*c) {
+		WARN_ON(!c || !*c);
+		return 0;
+	}
+	return *c == data;
+}
+
+void devm_clk_put(struct device *dev, struct clk *clk)
+{
+	int ret;
+
+	ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
+
+	WARN_ON(ret);
+}
+EXPORT_SYMBOL(devm_clk_put);
diff --git a/drivers/clk/clk-ls1x.c b/drivers/clk/clk-ls1x.c
new file mode 100644
index 00000000000..f20b750235f
--- /dev/null
+++ b/drivers/clk/clk-ls1x.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2012 Zhang, Keguang <keguang.zhang@gmail.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+
+#include <loongson1.h>
+
+#define OSC	33
+
+static DEFINE_SPINLOCK(_lock);
+
+static int ls1x_pll_clk_enable(struct clk_hw *hw)
+{
+	return 0;
+}
+
+static void ls1x_pll_clk_disable(struct clk_hw *hw)
+{
+}
+
+static unsigned long ls1x_pll_recalc_rate(struct clk_hw *hw,
+					     unsigned long parent_rate)
+{
+	u32 pll, rate;
+
+	pll = __raw_readl(LS1X_CLK_PLL_FREQ);
+	rate = ((12 + (pll & 0x3f)) * 1000000) +
+		((((pll >> 8) & 0x3ff) * 1000000) >> 10);
+	rate *= OSC;
+	rate >>= 1;
+
+	return rate;
+}
+
+static const struct clk_ops ls1x_pll_clk_ops = {
+	.enable = ls1x_pll_clk_enable,
+	.disable = ls1x_pll_clk_disable,
+	.recalc_rate = ls1x_pll_recalc_rate,
+};
+
+static struct clk * __init clk_register_pll(struct device *dev,
+	 const char *name, const char *parent_name, unsigned long flags)
+{
+	struct clk_hw *hw;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	/* allocate the divider */
+	hw = kzalloc(sizeof(struct clk_hw), GFP_KERNEL);
+	if (!hw) {
+		pr_err("%s: could not allocate clk_hw\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	init.name = name;
+	init.ops = &ls1x_pll_clk_ops;
+	init.flags = flags | CLK_IS_BASIC;
+	init.parent_names = (parent_name ? &parent_name : NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+	hw->init = &init;
+
+	/* register the clock */
+	clk = clk_register(dev, hw);
+
+	if (IS_ERR(clk))
+		kfree(hw);
+
+	return clk;
+}
+
+void __init ls1x_clk_init(void)
+{
+	struct clk *clk;
+
+	clk = clk_register_pll(NULL, "pll_clk", NULL, CLK_IS_ROOT);
+	clk_prepare_enable(clk);
+
+	clk = clk_register_divider(NULL, "cpu_clk", "pll_clk",
+			CLK_SET_RATE_PARENT, LS1X_CLK_PLL_DIV, DIV_CPU_SHIFT,
+			DIV_CPU_WIDTH, CLK_DIVIDER_ONE_BASED, &_lock);
+	clk_prepare_enable(clk);
+	clk_register_clkdev(clk, "cpu", NULL);
+
+	clk = clk_register_divider(NULL, "dc_clk", "pll_clk",
+			CLK_SET_RATE_PARENT, LS1X_CLK_PLL_DIV, DIV_DC_SHIFT,
+			DIV_DC_WIDTH, CLK_DIVIDER_ONE_BASED, &_lock);
+	clk_prepare_enable(clk);
+	clk_register_clkdev(clk, "dc", NULL);
+
+	clk = clk_register_divider(NULL, "ahb_clk", "pll_clk",
+			CLK_SET_RATE_PARENT, LS1X_CLK_PLL_DIV, DIV_DDR_SHIFT,
+			DIV_DDR_WIDTH, CLK_DIVIDER_ONE_BASED, &_lock);
+	clk_prepare_enable(clk);
+	clk_register_clkdev(clk, "ahb", NULL);
+	clk_register_clkdev(clk, "stmmaceth", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "apb_clk", "ahb_clk", 0, 1, 2);
+	clk_prepare_enable(clk);
+	clk_register_clkdev(clk, "apb", NULL);
+	clk_register_clkdev(clk, "serial8250", NULL);
+}
diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c
new file mode 100644
index 00000000000..ac5f5434cb9
--- /dev/null
+++ b/drivers/clk/clk-max77686.c
@@ -0,0 +1,244 @@
+/*
+ * clk-max77686.c - Clock driver for Maxim 77686
+ *
+ * Copyright (C) 2012 Samsung Electornics
+ * Jonghwa Lee <jonghwa3.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/max77686.h>
+#include <linux/mfd/max77686-private.h>
+#include <linux/clk-provider.h>
+#include <linux/mutex.h>
+#include <linux/clkdev.h>
+
+enum {
+	MAX77686_CLK_AP = 0,
+	MAX77686_CLK_CP,
+	MAX77686_CLK_PMIC,
+	MAX77686_CLKS_NUM,
+};
+
+struct max77686_clk {
+	struct max77686_dev *iodev;
+	u32 mask;
+	struct clk_hw hw;
+	struct clk_lookup *lookup;
+};
+
+static struct max77686_clk *get_max77686_clk(struct clk_hw *hw)
+{
+	return container_of(hw, struct max77686_clk, hw);
+}
+
+static int max77686_clk_prepare(struct clk_hw *hw)
+{
+	struct max77686_clk *max77686;
+	int ret;
+
+	max77686 = get_max77686_clk(hw);
+	if (!max77686)
+		return -ENOMEM;
+
+	ret = regmap_update_bits(max77686->iodev->regmap,
+		MAX77686_REG_32KHZ, max77686->mask, max77686->mask);
+
+	return ret;
+}
+
+static void max77686_clk_unprepare(struct clk_hw *hw)
+{
+	struct max77686_clk *max77686;
+
+	max77686 = get_max77686_clk(hw);
+	if (!max77686)
+		return;
+
+	regmap_update_bits(max77686->iodev->regmap,
+		MAX77686_REG_32KHZ, max77686->mask, ~max77686->mask);
+}
+
+static int max77686_clk_is_enabled(struct clk_hw *hw)
+{
+	struct max77686_clk *max77686;
+	int ret;
+	u32 val;
+
+	max77686 = get_max77686_clk(hw);
+	if (!max77686)
+		return -ENOMEM;
+
+	ret = regmap_read(max77686->iodev->regmap,
+				MAX77686_REG_32KHZ, &val);
+
+	if (ret < 0)
+		return -EINVAL;
+
+	return val & max77686->mask;
+}
+
+static struct clk_ops max77686_clk_ops = {
+	.prepare	= max77686_clk_prepare,
+	.unprepare	= max77686_clk_unprepare,
+	.is_enabled	= max77686_clk_is_enabled,
+};
+
+static struct clk_init_data max77686_clks_init[MAX77686_CLKS_NUM] = {
+	[MAX77686_CLK_AP] = {
+		.name = "32khz_ap",
+		.ops = &max77686_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+	[MAX77686_CLK_CP] = {
+		.name = "32khz_cp",
+		.ops = &max77686_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+	[MAX77686_CLK_PMIC] = {
+		.name = "32khz_pmic",
+		.ops = &max77686_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+};
+
+static int max77686_clk_register(struct device *dev,
+				struct max77686_clk *max77686)
+{
+	struct clk *clk;
+	struct clk_hw *hw = &max77686->hw;
+
+	clk = clk_register(dev, hw);
+
+	if (IS_ERR(clk))
+		return -ENOMEM;
+
+	max77686->lookup = devm_kzalloc(dev, sizeof(struct clk_lookup),
+					GFP_KERNEL);
+	if (IS_ERR(max77686->lookup))
+		return -ENOMEM;
+
+	max77686->lookup->con_id = hw->init->name;
+	max77686->lookup->clk = clk;
+
+	clkdev_add(max77686->lookup);
+
+	return 0;
+}
+
+static __devinit int max77686_clk_probe(struct platform_device *pdev)
+{
+	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+	struct max77686_clk **max77686_clks;
+	int i, ret;
+
+	max77686_clks = devm_kzalloc(&pdev->dev, sizeof(struct max77686_clk *)
+					* MAX77686_CLKS_NUM, GFP_KERNEL);
+	if (IS_ERR(max77686_clks))
+		return -ENOMEM;
+
+	for (i = 0; i < MAX77686_CLKS_NUM; i++) {
+		max77686_clks[i] = devm_kzalloc(&pdev->dev,
+					sizeof(struct max77686_clk), GFP_KERNEL);
+		if (IS_ERR(max77686_clks[i]))
+			return -ENOMEM;
+	}
+
+	for (i = 0; i < MAX77686_CLKS_NUM; i++) {
+		max77686_clks[i]->iodev = iodev;
+		max77686_clks[i]->mask = 1 << i;
+		max77686_clks[i]->hw.init = &max77686_clks_init[i];
+
+		ret = max77686_clk_register(&pdev->dev, max77686_clks[i]);
+		if (ret) {
+			switch (i) {
+			case MAX77686_CLK_AP:
+				dev_err(&pdev->dev, "Fail to register CLK_AP\n");
+				goto err_clk_ap;
+				break;
+			case MAX77686_CLK_CP:
+				dev_err(&pdev->dev, "Fail to register CLK_CP\n");
+				goto err_clk_cp;
+				break;
+			case MAX77686_CLK_PMIC:
+				dev_err(&pdev->dev, "Fail to register CLK_PMIC\n");
+				goto err_clk_pmic;
+			}
+		}
+	}
+
+	platform_set_drvdata(pdev, max77686_clks);
+
+	goto out;
+
+err_clk_pmic:
+	clkdev_drop(max77686_clks[MAX77686_CLK_CP]->lookup);
+	kfree(max77686_clks[MAX77686_CLK_CP]->hw.clk);
+err_clk_cp:
+	clkdev_drop(max77686_clks[MAX77686_CLK_AP]->lookup);
+	kfree(max77686_clks[MAX77686_CLK_AP]->hw.clk);
+err_clk_ap:
+out:
+	return ret;
+}
+
+static int __devexit max77686_clk_remove(struct platform_device *pdev)
+{
+	struct max77686_clk **max77686_clks = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < MAX77686_CLKS_NUM; i++) {
+		clkdev_drop(max77686_clks[i]->lookup);
+		kfree(max77686_clks[i]->hw.clk);
+	}
+	return 0;
+}
+
+static const struct platform_device_id max77686_clk_id[] = {
+	{ "max77686-clk", 0},
+	{ },
+};
+MODULE_DEVICE_TABLE(platform, max77686_clk_id);
+
+static struct platform_driver max77686_clk_driver = {
+	.driver = {
+		.name  = "max77686-clk",
+		.owner = THIS_MODULE,
+	},
+	.probe = max77686_clk_probe,
+	.remove = __devexit_p(max77686_clk_remove),
+	.id_table = max77686_clk_id,
+};
+
+static int __init max77686_clk_init(void)
+{
+	return platform_driver_register(&max77686_clk_driver);
+}
+subsys_initcall(max77686_clk_init);
+
+static void __init max77686_clk_cleanup(void)
+{
+	platform_driver_unregister(&max77686_clk_driver);
+}
+module_exit(max77686_clk_cleanup);
+
+MODULE_DESCRIPTION("MAXIM 77686 Clock Driver");
+MODULE_AUTHOR("Jonghwa Lee <jonghwa3.lee@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/clk/clk-prima2.c b/drivers/clk/clk-prima2.c
new file mode 100644
index 00000000000..517874fa685
--- /dev/null
+++ b/drivers/clk/clk-prima2.c
@@ -0,0 +1,1171 @@
+/*
+ * Clock tree for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <linux/syscore_ops.h>
+
+#define SIRFSOC_CLKC_CLK_EN0    0x0000
+#define SIRFSOC_CLKC_CLK_EN1    0x0004
+#define SIRFSOC_CLKC_REF_CFG    0x0014
+#define SIRFSOC_CLKC_CPU_CFG    0x0018
+#define SIRFSOC_CLKC_MEM_CFG    0x001c
+#define SIRFSOC_CLKC_SYS_CFG    0x0020
+#define SIRFSOC_CLKC_IO_CFG     0x0024
+#define SIRFSOC_CLKC_DSP_CFG    0x0028
+#define SIRFSOC_CLKC_GFX_CFG    0x002c
+#define SIRFSOC_CLKC_MM_CFG     0x0030
+#define SIRFSOC_CLKC_LCD_CFG     0x0034
+#define SIRFSOC_CLKC_MMC_CFG    0x0038
+#define SIRFSOC_CLKC_PLL1_CFG0  0x0040
+#define SIRFSOC_CLKC_PLL2_CFG0  0x0044
+#define SIRFSOC_CLKC_PLL3_CFG0  0x0048
+#define SIRFSOC_CLKC_PLL1_CFG1  0x004c
+#define SIRFSOC_CLKC_PLL2_CFG1  0x0050
+#define SIRFSOC_CLKC_PLL3_CFG1  0x0054
+#define SIRFSOC_CLKC_PLL1_CFG2  0x0058
+#define SIRFSOC_CLKC_PLL2_CFG2  0x005c
+#define SIRFSOC_CLKC_PLL3_CFG2  0x0060
+#define SIRFSOC_USBPHY_PLL_CTRL 0x0008
+#define SIRFSOC_USBPHY_PLL_POWERDOWN  BIT(1)
+#define SIRFSOC_USBPHY_PLL_BYPASS     BIT(2)
+#define SIRFSOC_USBPHY_PLL_LOCK       BIT(3)
+
+static void *sirfsoc_clk_vbase, *sirfsoc_rsc_vbase;
+
+#define KHZ     1000
+#define MHZ     (KHZ * KHZ)
+
+/*
+ * SiRFprimaII clock controller
+ * - 2 oscillators: osc-26MHz, rtc-32.768KHz
+ * - 3 standard configurable plls: pll1, pll2 & pll3
+ * - 2 exclusive plls: usb phy pll and sata phy pll
+ * - 8 clock domains: cpu/cpudiv, mem/memdiv, sys/io, dsp, graphic, multimedia,
+ *     display and sdphy.
+ *     Each clock domain can select its own clock source from five clock sources,
+ *     X_XIN, X_XINW, PLL1, PLL2 and PLL3. The domain clock is used as the source
+ *     clock of the group clock.
+ *     - dsp domain: gps, mf
+ *     - io domain: dmac, nand, audio, uart, i2c, spi, usp, pwm, pulse
+ *     - sys domain: security
+ */
+
+struct clk_pll {
+	struct clk_hw hw;
+	unsigned short regofs;  /* register offset */
+};
+
+#define to_pllclk(_hw) container_of(_hw, struct clk_pll, hw)
+
+struct clk_dmn {
+	struct clk_hw hw;
+	signed char enable_bit; /* enable bit: 0 ~ 63 */
+	unsigned short regofs;  /* register offset */
+};
+
+#define to_dmnclk(_hw) container_of(_hw, struct clk_dmn, hw)
+
+struct clk_std {
+	struct clk_hw hw;
+	signed char enable_bit; /* enable bit: 0 ~ 63 */
+};
+
+#define to_stdclk(_hw) container_of(_hw, struct clk_std, hw)
+
+static int std_clk_is_enabled(struct clk_hw *hw);
+static int std_clk_enable(struct clk_hw *hw);
+static void std_clk_disable(struct clk_hw *hw);
+
+static inline unsigned long clkc_readl(unsigned reg)
+{
+	return readl(sirfsoc_clk_vbase + reg);
+}
+
+static inline void clkc_writel(u32 val, unsigned reg)
+{
+	writel(val, sirfsoc_clk_vbase + reg);
+}
+
+/*
+ * std pll
+ */
+
+static unsigned long pll_clk_recalc_rate(struct clk_hw *hw,
+	unsigned long parent_rate)
+{
+	unsigned long fin = parent_rate;
+	struct clk_pll *clk = to_pllclk(hw);
+	u32 regcfg2 = clk->regofs + SIRFSOC_CLKC_PLL1_CFG2 -
+		SIRFSOC_CLKC_PLL1_CFG0;
+
+	if (clkc_readl(regcfg2) & BIT(2)) {
+		/* pll bypass mode */
+		return fin;
+	} else {
+		/* fout = fin * nf / nr / od */
+		u32 cfg0 = clkc_readl(clk->regofs);
+		u32 nf = (cfg0 & (BIT(13) - 1)) + 1;
+		u32 nr = ((cfg0 >> 13) & (BIT(6) - 1)) + 1;
+		u32 od = ((cfg0 >> 19) & (BIT(4) - 1)) + 1;
+		WARN_ON(fin % MHZ);
+		return fin / MHZ * nf / nr / od * MHZ;
+	}
+}
+
+static long pll_clk_round_rate(struct clk_hw *hw, unsigned long rate,
+	unsigned long *parent_rate)
+{
+	unsigned long fin, nf, nr, od;
+
+	/*
+	 * fout = fin * nf / (nr * od);
+	 * set od = 1, nr = fin/MHz, so fout = nf * MHz
+	 */
+	rate = rate - rate % MHZ;
+
+	nf = rate / MHZ;
+	if (nf > BIT(13))
+		nf = BIT(13);
+	if (nf < 1)
+		nf = 1;
+
+	fin = *parent_rate;
+
+	nr = fin / MHZ;
+	if (nr > BIT(6))
+		nr = BIT(6);
+	od = 1;
+
+	return fin * nf / (nr * od);
+}
+
+static int pll_clk_set_rate(struct clk_hw *hw, unsigned long rate,
+	unsigned long parent_rate)
+{
+	struct clk_pll *clk = to_pllclk(hw);
+	unsigned long fin, nf, nr, od, reg;
+
+	/*
+	 * fout = fin * nf / (nr * od);
+	 * set od = 1, nr = fin/MHz, so fout = nf * MHz
+	 */
+
+	nf = rate / MHZ;
+	if (unlikely((rate % MHZ) || nf > BIT(13) || nf < 1))
+		return -EINVAL;
+
+	fin = parent_rate;
+	BUG_ON(fin < MHZ);
+
+	nr = fin / MHZ;
+	BUG_ON((fin % MHZ) || nr > BIT(6));
+
+	od = 1;
+
+	reg = (nf - 1) | ((nr - 1) << 13) | ((od - 1) << 19);
+	clkc_writel(reg, clk->regofs);
+
+	reg = clk->regofs + SIRFSOC_CLKC_PLL1_CFG1 - SIRFSOC_CLKC_PLL1_CFG0;
+	clkc_writel((nf >> 1) - 1, reg);
+
+	reg = clk->regofs + SIRFSOC_CLKC_PLL1_CFG2 - SIRFSOC_CLKC_PLL1_CFG0;
+	while (!(clkc_readl(reg) & BIT(6)))
+		cpu_relax();
+
+	return 0;
+}
+
+static struct clk_ops std_pll_ops = {
+	.recalc_rate = pll_clk_recalc_rate,
+	.round_rate = pll_clk_round_rate,
+	.set_rate = pll_clk_set_rate,
+};
+
+static const char *pll_clk_parents[] = {
+	"osc",
+};
+
+static struct clk_init_data clk_pll1_init = {
+	.name = "pll1",
+	.ops = &std_pll_ops,
+	.parent_names = pll_clk_parents,
+	.num_parents = ARRAY_SIZE(pll_clk_parents),
+};
+
+static struct clk_init_data clk_pll2_init = {
+	.name = "pll2",
+	.ops = &std_pll_ops,
+	.parent_names = pll_clk_parents,
+	.num_parents = ARRAY_SIZE(pll_clk_parents),
+};
+
+static struct clk_init_data clk_pll3_init = {
+	.name = "pll3",
+	.ops = &std_pll_ops,
+	.parent_names = pll_clk_parents,
+	.num_parents = ARRAY_SIZE(pll_clk_parents),
+};
+
+static struct clk_pll clk_pll1 = {
+	.regofs = SIRFSOC_CLKC_PLL1_CFG0,
+	.hw = {
+		.init = &clk_pll1_init,
+	},
+};
+
+static struct clk_pll clk_pll2 = {
+	.regofs = SIRFSOC_CLKC_PLL2_CFG0,
+	.hw = {
+		.init = &clk_pll2_init,
+	},
+};
+
+static struct clk_pll clk_pll3 = {
+	.regofs = SIRFSOC_CLKC_PLL3_CFG0,
+	.hw = {
+		.init = &clk_pll3_init,
+	},
+};
+
+/*
+ * usb uses specified pll
+ */
+
+static int usb_pll_clk_enable(struct clk_hw *hw)
+{
+	u32 reg = readl(sirfsoc_rsc_vbase + SIRFSOC_USBPHY_PLL_CTRL);
+	reg &= ~(SIRFSOC_USBPHY_PLL_POWERDOWN | SIRFSOC_USBPHY_PLL_BYPASS);
+	writel(reg, sirfsoc_rsc_vbase + SIRFSOC_USBPHY_PLL_CTRL);
+	while (!(readl(sirfsoc_rsc_vbase + SIRFSOC_USBPHY_PLL_CTRL) &
+			SIRFSOC_USBPHY_PLL_LOCK))
+		cpu_relax();
+
+	return 0;
+}
+
+static void usb_pll_clk_disable(struct clk_hw *clk)
+{
+	u32 reg = readl(sirfsoc_rsc_vbase + SIRFSOC_USBPHY_PLL_CTRL);
+	reg |= (SIRFSOC_USBPHY_PLL_POWERDOWN | SIRFSOC_USBPHY_PLL_BYPASS);
+	writel(reg, sirfsoc_rsc_vbase + SIRFSOC_USBPHY_PLL_CTRL);
+}
+
+static unsigned long usb_pll_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
+{
+	u32 reg = readl(sirfsoc_rsc_vbase + SIRFSOC_USBPHY_PLL_CTRL);
+	return (reg & SIRFSOC_USBPHY_PLL_BYPASS) ? parent_rate : 48*MHZ;
+}
+
+static struct clk_ops usb_pll_ops = {
+	.enable = usb_pll_clk_enable,
+	.disable = usb_pll_clk_disable,
+	.recalc_rate = usb_pll_clk_recalc_rate,
+};
+
+static struct clk_init_data clk_usb_pll_init = {
+	.name = "usb_pll",
+	.ops = &usb_pll_ops,
+	.parent_names = pll_clk_parents,
+	.num_parents = ARRAY_SIZE(pll_clk_parents),
+};
+
+static struct clk_hw usb_pll_clk_hw = {
+	.init = &clk_usb_pll_init,
+};
+
+/*
+ * clock domains - cpu, mem, sys/io, dsp, gfx
+ */
+
+static const char *dmn_clk_parents[] = {
+	"rtc",
+	"osc",
+	"pll1",
+	"pll2",
+	"pll3",
+};
+
+static u8 dmn_clk_get_parent(struct clk_hw *hw)
+{
+	struct clk_dmn *clk = to_dmnclk(hw);
+	u32 cfg = clkc_readl(clk->regofs);
+
+	/* parent of io domain can only be pll3 */
+	if (strcmp(hw->init->name, "io") == 0)
+		return 4;
+
+	WARN_ON((cfg & (BIT(3) - 1)) > 4);
+
+	return cfg & (BIT(3) - 1);
+}
+
+static int dmn_clk_set_parent(struct clk_hw *hw, u8 parent)
+{
+	struct clk_dmn *clk = to_dmnclk(hw);
+	u32 cfg = clkc_readl(clk->regofs);
+
+	/* parent of io domain can only be pll3 */
+	if (strcmp(hw->init->name, "io") == 0)
+		return -EINVAL;
+
+	cfg &= ~(BIT(3) - 1);
+	clkc_writel(cfg | parent, clk->regofs);
+	/* BIT(3) - switching status: 1 - busy, 0 - done */
+	while (clkc_readl(clk->regofs) & BIT(3))
+		cpu_relax();
+
+	return 0;
+}
+
+static unsigned long dmn_clk_recalc_rate(struct clk_hw *hw,
+	unsigned long parent_rate)
+
+{
+	unsigned long fin = parent_rate;
+	struct clk_dmn *clk = to_dmnclk(hw);
+
+	u32 cfg = clkc_readl(clk->regofs);
+
+	if (cfg & BIT(24)) {
+		/* fcd bypass mode */
+		return fin;
+	} else {
+		/*
+		 * wait count: bit[19:16], hold count: bit[23:20]
+		 */
+		u32 wait = (cfg >> 16) & (BIT(4) - 1);
+		u32 hold = (cfg >> 20) & (BIT(4) - 1);
+
+		return fin / (wait + hold + 2);
+	}
+}
+
+static long dmn_clk_round_rate(struct clk_hw *hw, unsigned long rate,
+	unsigned long *parent_rate)
+{
+	unsigned long fin;
+	unsigned ratio, wait, hold;
+	unsigned bits = (strcmp(hw->init->name, "mem") == 0) ? 3 : 4;
+
+	fin = *parent_rate;
+	ratio = fin / rate;
+
+	if (ratio < 2)
+		ratio = 2;
+	if (ratio > BIT(bits + 1))
+		ratio = BIT(bits + 1);
+
+	wait = (ratio >> 1) - 1;
+	hold = ratio - wait - 2;
+
+	return fin / (wait + hold + 2);
+}
+
+static int dmn_clk_set_rate(struct clk_hw *hw, unsigned long rate,
+	unsigned long parent_rate)
+{
+	struct clk_dmn *clk = to_dmnclk(hw);
+	unsigned long fin;
+	unsigned ratio, wait, hold, reg;
+	unsigned bits = (strcmp(hw->init->name, "mem") == 0) ? 3 : 4;
+
+	fin = parent_rate;
+	ratio = fin / rate;
+
+	if (unlikely(ratio < 2 || ratio > BIT(bits + 1)))
+		return -EINVAL;
+
+	WARN_ON(fin % rate);
+
+	wait = (ratio >> 1) - 1;
+	hold = ratio - wait - 2;
+
+	reg = clkc_readl(clk->regofs);
+	reg &= ~(((BIT(bits) - 1) << 16) | ((BIT(bits) - 1) << 20));
+	reg |= (wait << 16) | (hold << 20) | BIT(25);
+	clkc_writel(reg, clk->regofs);
+
+	/* waiting FCD been effective */
+	while (clkc_readl(clk->regofs) & BIT(25))
+		cpu_relax();
+
+	return 0;
+}
+
+static struct clk_ops msi_ops = {
+	.set_rate = dmn_clk_set_rate,
+	.round_rate = dmn_clk_round_rate,
+	.recalc_rate = dmn_clk_recalc_rate,
+	.set_parent = dmn_clk_set_parent,
+	.get_parent = dmn_clk_get_parent,
+};
+
+static struct clk_init_data clk_mem_init = {
+	.name = "mem",
+	.ops = &msi_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_mem = {
+	.regofs = SIRFSOC_CLKC_MEM_CFG,
+	.hw = {
+		.init = &clk_mem_init,
+	},
+};
+
+static struct clk_init_data clk_sys_init = {
+	.name = "sys",
+	.ops = &msi_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+	.flags = CLK_SET_RATE_GATE,
+};
+
+static struct clk_dmn clk_sys = {
+	.regofs = SIRFSOC_CLKC_SYS_CFG,
+	.hw = {
+		.init = &clk_sys_init,
+	},
+};
+
+static struct clk_init_data clk_io_init = {
+	.name = "io",
+	.ops = &msi_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_io = {
+	.regofs = SIRFSOC_CLKC_IO_CFG,
+	.hw = {
+		.init = &clk_io_init,
+	},
+};
+
+static struct clk_ops cpu_ops = {
+	.set_parent = dmn_clk_set_parent,
+	.get_parent = dmn_clk_get_parent,
+};
+
+static struct clk_init_data clk_cpu_init = {
+	.name = "cpu",
+	.ops = &cpu_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+	.flags = CLK_SET_RATE_PARENT,
+};
+
+static struct clk_dmn clk_cpu = {
+	.regofs = SIRFSOC_CLKC_CPU_CFG,
+	.hw = {
+		.init = &clk_cpu_init,
+	},
+};
+
+static struct clk_ops dmn_ops = {
+	.is_enabled = std_clk_is_enabled,
+	.enable = std_clk_enable,
+	.disable = std_clk_disable,
+	.set_rate = dmn_clk_set_rate,
+	.round_rate = dmn_clk_round_rate,
+	.recalc_rate = dmn_clk_recalc_rate,
+	.set_parent = dmn_clk_set_parent,
+	.get_parent = dmn_clk_get_parent,
+};
+
+/* dsp, gfx, mm, lcd and vpp domain */
+
+static struct clk_init_data clk_dsp_init = {
+	.name = "dsp",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_dsp = {
+	.regofs = SIRFSOC_CLKC_DSP_CFG,
+	.enable_bit = 0,
+	.hw = {
+		.init = &clk_dsp_init,
+	},
+};
+
+static struct clk_init_data clk_gfx_init = {
+	.name = "gfx",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_gfx = {
+	.regofs = SIRFSOC_CLKC_GFX_CFG,
+	.enable_bit = 8,
+	.hw = {
+		.init = &clk_gfx_init,
+	},
+};
+
+static struct clk_init_data clk_mm_init = {
+	.name = "mm",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_mm = {
+	.regofs = SIRFSOC_CLKC_MM_CFG,
+	.enable_bit = 9,
+	.hw = {
+		.init = &clk_mm_init,
+	},
+};
+
+static struct clk_init_data clk_lcd_init = {
+	.name = "lcd",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_lcd = {
+	.regofs = SIRFSOC_CLKC_LCD_CFG,
+	.enable_bit = 10,
+	.hw = {
+		.init = &clk_lcd_init,
+	},
+};
+
+static struct clk_init_data clk_vpp_init = {
+	.name = "vpp",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_vpp = {
+	.regofs = SIRFSOC_CLKC_LCD_CFG,
+	.enable_bit = 11,
+	.hw = {
+		.init = &clk_vpp_init,
+	},
+};
+
+static struct clk_init_data clk_mmc01_init = {
+	.name = "mmc01",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_mmc01 = {
+	.regofs = SIRFSOC_CLKC_MMC_CFG,
+	.enable_bit = 59,
+	.hw = {
+		.init = &clk_mmc01_init,
+	},
+};
+
+static struct clk_init_data clk_mmc23_init = {
+	.name = "mmc23",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_mmc23 = {
+	.regofs = SIRFSOC_CLKC_MMC_CFG,
+	.enable_bit = 60,
+	.hw = {
+		.init = &clk_mmc23_init,
+	},
+};
+
+static struct clk_init_data clk_mmc45_init = {
+	.name = "mmc45",
+	.ops = &dmn_ops,
+	.parent_names = dmn_clk_parents,
+	.num_parents = ARRAY_SIZE(dmn_clk_parents),
+};
+
+static struct clk_dmn clk_mmc45 = {
+	.regofs = SIRFSOC_CLKC_MMC_CFG,
+	.enable_bit = 61,
+	.hw = {
+		.init = &clk_mmc45_init,
+	},
+};
+
+/*
+ * peripheral controllers in io domain
+ */
+
+static int std_clk_is_enabled(struct clk_hw *hw)
+{
+	u32 reg;
+	int bit;
+	struct clk_std *clk = to_stdclk(hw);
+
+	bit = clk->enable_bit % 32;
+	reg = clk->enable_bit / 32;
+	reg = SIRFSOC_CLKC_CLK_EN0 + reg * sizeof(reg);
+
+	return !!(clkc_readl(reg) & BIT(bit));
+}
+
+static int std_clk_enable(struct clk_hw *hw)
+{
+	u32 val, reg;
+	int bit;
+	struct clk_std *clk = to_stdclk(hw);
+
+	BUG_ON(clk->enable_bit < 0 || clk->enable_bit > 63);
+
+	bit = clk->enable_bit % 32;
+	reg = clk->enable_bit / 32;
+	reg = SIRFSOC_CLKC_CLK_EN0 + reg * sizeof(reg);
+
+	val = clkc_readl(reg) | BIT(bit);
+	clkc_writel(val, reg);
+	return 0;
+}
+
+static void std_clk_disable(struct clk_hw *hw)
+{
+	u32 val, reg;
+	int bit;
+	struct clk_std *clk = to_stdclk(hw);
+
+	BUG_ON(clk->enable_bit < 0 || clk->enable_bit > 63);
+
+	bit = clk->enable_bit % 32;
+	reg = clk->enable_bit / 32;
+	reg = SIRFSOC_CLKC_CLK_EN0 + reg * sizeof(reg);
+
+	val = clkc_readl(reg) & ~BIT(bit);
+	clkc_writel(val, reg);
+}
+
+static const char *std_clk_io_parents[] = {
+	"io",
+};
+
+static struct clk_ops ios_ops = {
+	.is_enabled = std_clk_is_enabled,
+	.enable = std_clk_enable,
+	.disable = std_clk_disable,
+};
+
+static struct clk_init_data clk_dmac0_init = {
+	.name = "dmac0",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_dmac0 = {
+	.enable_bit = 32,
+	.hw = {
+		.init = &clk_dmac0_init,
+	},
+};
+
+static struct clk_init_data clk_dmac1_init = {
+	.name = "dmac1",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_dmac1 = {
+	.enable_bit = 33,
+	.hw = {
+		.init = &clk_dmac1_init,
+	},
+};
+
+static struct clk_init_data clk_nand_init = {
+	.name = "nand",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_nand = {
+	.enable_bit = 34,
+	.hw = {
+		.init = &clk_nand_init,
+	},
+};
+
+static struct clk_init_data clk_audio_init = {
+	.name = "audio",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_audio = {
+	.enable_bit = 35,
+	.hw = {
+		.init = &clk_audio_init,
+	},
+};
+
+static struct clk_init_data clk_uart0_init = {
+	.name = "uart0",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_uart0 = {
+	.enable_bit = 36,
+	.hw = {
+		.init = &clk_uart0_init,
+	},
+};
+
+static struct clk_init_data clk_uart1_init = {
+	.name = "uart1",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_uart1 = {
+	.enable_bit = 37,
+	.hw = {
+		.init = &clk_uart1_init,
+	},
+};
+
+static struct clk_init_data clk_uart2_init = {
+	.name = "uart2",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_uart2 = {
+	.enable_bit = 38,
+	.hw = {
+		.init = &clk_uart2_init,
+	},
+};
+
+static struct clk_init_data clk_usp0_init = {
+	.name = "usp0",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_usp0 = {
+	.enable_bit = 39,
+	.hw = {
+		.init = &clk_usp0_init,
+	},
+};
+
+static struct clk_init_data clk_usp1_init = {
+	.name = "usp1",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_usp1 = {
+	.enable_bit = 40,
+	.hw = {
+		.init = &clk_usp1_init,
+	},
+};
+
+static struct clk_init_data clk_usp2_init = {
+	.name = "usp2",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_usp2 = {
+	.enable_bit = 41,
+	.hw = {
+		.init = &clk_usp2_init,
+	},
+};
+
+static struct clk_init_data clk_vip_init = {
+	.name = "vip",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_vip = {
+	.enable_bit = 42,
+	.hw = {
+		.init = &clk_vip_init,
+	},
+};
+
+static struct clk_init_data clk_spi0_init = {
+	.name = "spi0",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_spi0 = {
+	.enable_bit = 43,
+	.hw = {
+		.init = &clk_spi0_init,
+	},
+};
+
+static struct clk_init_data clk_spi1_init = {
+	.name = "spi1",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_spi1 = {
+	.enable_bit = 44,
+	.hw = {
+		.init = &clk_spi1_init,
+	},
+};
+
+static struct clk_init_data clk_tsc_init = {
+	.name = "tsc",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_tsc = {
+	.enable_bit = 45,
+	.hw = {
+		.init = &clk_tsc_init,
+	},
+};
+
+static struct clk_init_data clk_i2c0_init = {
+	.name = "i2c0",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_i2c0 = {
+	.enable_bit = 46,
+	.hw = {
+		.init = &clk_i2c0_init,
+	},
+};
+
+static struct clk_init_data clk_i2c1_init = {
+	.name = "i2c1",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_i2c1 = {
+	.enable_bit = 47,
+	.hw = {
+		.init = &clk_i2c1_init,
+	},
+};
+
+static struct clk_init_data clk_pwmc_init = {
+	.name = "pwmc",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_pwmc = {
+	.enable_bit = 48,
+	.hw = {
+		.init = &clk_pwmc_init,
+	},
+};
+
+static struct clk_init_data clk_efuse_init = {
+	.name = "efuse",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_efuse = {
+	.enable_bit = 49,
+	.hw = {
+		.init = &clk_efuse_init,
+	},
+};
+
+static struct clk_init_data clk_pulse_init = {
+	.name = "pulse",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_pulse = {
+	.enable_bit = 50,
+	.hw = {
+		.init = &clk_pulse_init,
+	},
+};
+
+static const char *std_clk_dsp_parents[] = {
+	"dsp",
+};
+
+static struct clk_init_data clk_gps_init = {
+	.name = "gps",
+	.ops = &ios_ops,
+	.parent_names = std_clk_dsp_parents,
+	.num_parents = ARRAY_SIZE(std_clk_dsp_parents),
+};
+
+static struct clk_std clk_gps = {
+	.enable_bit = 1,
+	.hw = {
+		.init = &clk_gps_init,
+	},
+};
+
+static struct clk_init_data clk_mf_init = {
+	.name = "mf",
+	.ops = &ios_ops,
+	.parent_names = std_clk_io_parents,
+	.num_parents = ARRAY_SIZE(std_clk_io_parents),
+};
+
+static struct clk_std clk_mf = {
+	.enable_bit = 2,
+	.hw = {
+		.init = &clk_mf_init,
+	},
+};
+
+static const char *std_clk_sys_parents[] = {
+	"sys",
+};
+
+static struct clk_init_data clk_security_init = {
+	.name = "mf",
+	.ops = &ios_ops,
+	.parent_names = std_clk_sys_parents,
+	.num_parents = ARRAY_SIZE(std_clk_sys_parents),
+};
+
+static struct clk_std clk_security = {
+	.enable_bit = 19,
+	.hw = {
+		.init = &clk_security_init,
+	},
+};
+
+static const char *std_clk_usb_parents[] = {
+	"usb_pll",
+};
+
+static struct clk_init_data clk_usb0_init = {
+	.name = "usb0",
+	.ops = &ios_ops,
+	.parent_names = std_clk_usb_parents,
+	.num_parents = ARRAY_SIZE(std_clk_usb_parents),
+};
+
+static struct clk_std clk_usb0 = {
+	.enable_bit = 16,
+	.hw = {
+		.init = &clk_usb0_init,
+	},
+};
+
+static struct clk_init_data clk_usb1_init = {
+	.name = "usb1",
+	.ops = &ios_ops,
+	.parent_names = std_clk_usb_parents,
+	.num_parents = ARRAY_SIZE(std_clk_usb_parents),
+};
+
+static struct clk_std clk_usb1 = {
+	.enable_bit = 17,
+	.hw = {
+		.init = &clk_usb1_init,
+	},
+};
+
+static struct of_device_id clkc_ids[] = {
+	{ .compatible = "sirf,prima2-clkc" },
+	{},
+};
+
+static struct of_device_id rsc_ids[] = {
+	{ .compatible = "sirf,prima2-rsc" },
+	{},
+};
+
+void __init sirfsoc_of_clk_init(void)
+{
+	struct clk *clk;
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, clkc_ids);
+	if (!np)
+		panic("unable to find compatible clkc node in dtb\n");
+
+	sirfsoc_clk_vbase = of_iomap(np, 0);
+	if (!sirfsoc_clk_vbase)
+		panic("unable to map clkc registers\n");
+
+	of_node_put(np);
+
+	np = of_find_matching_node(NULL, rsc_ids);
+	if (!np)
+		panic("unable to find compatible rsc node in dtb\n");
+
+	sirfsoc_rsc_vbase = of_iomap(np, 0);
+	if (!sirfsoc_rsc_vbase)
+		panic("unable to map rsc registers\n");
+
+	of_node_put(np);
+
+
+	/* These are always available (RTC and 26MHz OSC)*/
+	clk = clk_register_fixed_rate(NULL, "rtc", NULL,
+		CLK_IS_ROOT, 32768);
+	BUG_ON(!clk);
+	clk = clk_register_fixed_rate(NULL, "osc", NULL,
+		CLK_IS_ROOT, 26000000);
+	BUG_ON(!clk);
+
+	clk = clk_register(NULL, &clk_pll1.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_pll2.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_pll3.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_mem.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_sys.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_security.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b8030000.security");
+	clk = clk_register(NULL, &clk_dsp.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_gps.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "a8010000.gps");
+	clk = clk_register(NULL, &clk_mf.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_io.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "io");
+	clk = clk_register(NULL, &clk_cpu.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "cpu");
+	clk = clk_register(NULL, &clk_uart0.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0050000.uart");
+	clk = clk_register(NULL, &clk_uart1.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0060000.uart");
+	clk = clk_register(NULL, &clk_uart2.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0070000.uart");
+	clk = clk_register(NULL, &clk_tsc.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0110000.tsc");
+	clk = clk_register(NULL, &clk_i2c0.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00e0000.i2c");
+	clk = clk_register(NULL, &clk_i2c1.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00f0000.i2c");
+	clk = clk_register(NULL, &clk_spi0.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00d0000.spi");
+	clk = clk_register(NULL, &clk_spi1.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0170000.spi");
+	clk = clk_register(NULL, &clk_pwmc.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0130000.pwm");
+	clk = clk_register(NULL, &clk_efuse.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0140000.efusesys");
+	clk = clk_register(NULL, &clk_pulse.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0150000.pulsec");
+	clk = clk_register(NULL, &clk_dmac0.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00b0000.dma-controller");
+	clk = clk_register(NULL, &clk_dmac1.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0160000.dma-controller");
+	clk = clk_register(NULL, &clk_nand.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0030000.nand");
+	clk = clk_register(NULL, &clk_audio.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0040000.audio");
+	clk = clk_register(NULL, &clk_usp0.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0080000.usp");
+	clk = clk_register(NULL, &clk_usp1.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b0090000.usp");
+	clk = clk_register(NULL, &clk_usp2.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00a0000.usp");
+	clk = clk_register(NULL, &clk_vip.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00c0000.vip");
+	clk = clk_register(NULL, &clk_gfx.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "98000000.graphics");
+	clk = clk_register(NULL, &clk_mm.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "a0000000.multimedia");
+	clk = clk_register(NULL, &clk_lcd.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "90010000.display");
+	clk = clk_register(NULL, &clk_vpp.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "90020000.vpp");
+	clk = clk_register(NULL, &clk_mmc01.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_mmc23.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_mmc45.hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &usb_pll_clk_hw);
+	BUG_ON(!clk);
+	clk = clk_register(NULL, &clk_usb0.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00e0000.usb");
+	clk = clk_register(NULL, &clk_usb1.hw);
+	BUG_ON(!clk);
+	clk_register_clkdev(clk, NULL, "b00f0000.usb");
+}
diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
new file mode 100644
index 00000000000..a885600f527
--- /dev/null
+++ b/drivers/clk/clk-vt8500.c
@@ -0,0 +1,510 @@
+/*
+ * Clock implementation for VIA/Wondermedia SoC's
+ * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+
+/* All clocks share the same lock as none can be changed concurrently */
+static DEFINE_SPINLOCK(_lock);
+
+struct clk_device {
+	struct clk_hw	hw;
+	void __iomem	*div_reg;
+	unsigned int	div_mask;
+	void __iomem	*en_reg;
+	int		en_bit;
+	spinlock_t	*lock;
+};
+
+/*
+ * Add new PLL_TYPE_x definitions here as required. Use the first known model
+ * to support the new type as the name.
+ * Add case statements to vtwm_pll_recalc_rate(), vtwm_pll_round_round() and
+ * vtwm_pll_set_rate() to handle the new PLL_TYPE_x
+ */
+
+#define PLL_TYPE_VT8500		0
+#define PLL_TYPE_WM8650		1
+
+struct clk_pll {
+	struct clk_hw	hw;
+	void __iomem	*reg;
+	spinlock_t	*lock;
+	int		type;
+};
+
+static void __iomem *pmc_base;
+
+#define to_clk_device(_hw) container_of(_hw, struct clk_device, hw)
+
+#define VT8500_PMC_BUSY_MASK		0x18
+
+static void vt8500_pmc_wait_busy(void)
+{
+	while (readl(pmc_base) & VT8500_PMC_BUSY_MASK)
+		cpu_relax();
+}
+
+static int vt8500_dclk_enable(struct clk_hw *hw)
+{
+	struct clk_device *cdev = to_clk_device(hw);
+	u32 en_val;
+	unsigned long flags = 0;
+
+	spin_lock_irqsave(cdev->lock, flags);
+
+	en_val = readl(cdev->en_reg);
+	en_val |= BIT(cdev->en_bit);
+	writel(en_val, cdev->en_reg);
+
+	spin_unlock_irqrestore(cdev->lock, flags);
+	return 0;
+}
+
+static void vt8500_dclk_disable(struct clk_hw *hw)
+{
+	struct clk_device *cdev = to_clk_device(hw);
+	u32 en_val;
+	unsigned long flags = 0;
+
+	spin_lock_irqsave(cdev->lock, flags);
+
+	en_val = readl(cdev->en_reg);
+	en_val &= ~BIT(cdev->en_bit);
+	writel(en_val, cdev->en_reg);
+
+	spin_unlock_irqrestore(cdev->lock, flags);
+}
+
+static int vt8500_dclk_is_enabled(struct clk_hw *hw)
+{
+	struct clk_device *cdev = to_clk_device(hw);
+	u32 en_val = (readl(cdev->en_reg) & BIT(cdev->en_bit));
+
+	return en_val ? 1 : 0;
+}
+
+static unsigned long vt8500_dclk_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct clk_device *cdev = to_clk_device(hw);
+	u32 div = readl(cdev->div_reg) & cdev->div_mask;
+
+	/* Special case for SDMMC devices */
+	if ((cdev->div_mask == 0x3F) && (div & BIT(5)))
+		div = 64 * (div & 0x1f);
+
+	/* div == 0 is actually the highest divisor */
+	if (div == 0)
+		div = (cdev->div_mask + 1);
+
+	return parent_rate / div;
+}
+
+static long vt8500_dclk_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *prate)
+{
+	u32 divisor = *prate / rate;
+
+	return *prate / divisor;
+}
+
+static int vt8500_dclk_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct clk_device *cdev = to_clk_device(hw);
+	u32 divisor = parent_rate / rate;
+	unsigned long flags = 0;
+
+	if (divisor == cdev->div_mask + 1)
+		divisor = 0;
+
+	if (divisor > cdev->div_mask) {
+		pr_err("%s: invalid divisor for clock\n", __func__);
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(cdev->lock, flags);
+
+	vt8500_pmc_wait_busy();
+	writel(divisor, cdev->div_reg);
+	vt8500_pmc_wait_busy();
+
+	spin_lock_irqsave(cdev->lock, flags);
+
+	return 0;
+}
+
+
+static const struct clk_ops vt8500_gated_clk_ops = {
+	.enable = vt8500_dclk_enable,
+	.disable = vt8500_dclk_disable,
+	.is_enabled = vt8500_dclk_is_enabled,
+};
+
+static const struct clk_ops vt8500_divisor_clk_ops = {
+	.round_rate = vt8500_dclk_round_rate,
+	.set_rate = vt8500_dclk_set_rate,
+	.recalc_rate = vt8500_dclk_recalc_rate,
+};
+
+static const struct clk_ops vt8500_gated_divisor_clk_ops = {
+	.enable = vt8500_dclk_enable,
+	.disable = vt8500_dclk_disable,
+	.is_enabled = vt8500_dclk_is_enabled,
+	.round_rate = vt8500_dclk_round_rate,
+	.set_rate = vt8500_dclk_set_rate,
+	.recalc_rate = vt8500_dclk_recalc_rate,
+};
+
+#define CLK_INIT_GATED			BIT(0)
+#define CLK_INIT_DIVISOR		BIT(1)
+#define CLK_INIT_GATED_DIVISOR		(CLK_INIT_DIVISOR | CLK_INIT_GATED)
+
+static __init void vtwm_device_clk_init(struct device_node *node)
+{
+	u32 en_reg, div_reg;
+	struct clk *clk;
+	struct clk_device *dev_clk;
+	const char *clk_name = node->name;
+	const char *parent_name;
+	struct clk_init_data init;
+	int rc;
+	int clk_init_flags = 0;
+
+	dev_clk = kzalloc(sizeof(*dev_clk), GFP_KERNEL);
+	if (WARN_ON(!dev_clk))
+		return;
+
+	dev_clk->lock = &_lock;
+
+	rc = of_property_read_u32(node, "enable-reg", &en_reg);
+	if (!rc) {
+		dev_clk->en_reg = pmc_base + en_reg;
+		rc = of_property_read_u32(node, "enable-bit", &dev_clk->en_bit);
+		if (rc) {
+			pr_err("%s: enable-bit property required for gated clock\n",
+								__func__);
+			return;
+		}
+		clk_init_flags |= CLK_INIT_GATED;
+	}
+
+	rc = of_property_read_u32(node, "divisor-reg", &div_reg);
+	if (!rc) {
+		dev_clk->div_reg = pmc_base + div_reg;
+		/*
+		 * use 0x1f as the default mask since it covers
+		 * almost all the clocks and reduces dts properties
+		 */
+		dev_clk->div_mask = 0x1f;
+
+		of_property_read_u32(node, "divisor-mask", &dev_clk->div_mask);
+		clk_init_flags |= CLK_INIT_DIVISOR;
+	}
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+
+	switch (clk_init_flags) {
+	case CLK_INIT_GATED:
+		init.ops = &vt8500_gated_clk_ops;
+		break;
+	case CLK_INIT_DIVISOR:
+		init.ops = &vt8500_divisor_clk_ops;
+		break;
+	case CLK_INIT_GATED_DIVISOR:
+		init.ops = &vt8500_gated_divisor_clk_ops;
+		break;
+	default:
+		pr_err("%s: Invalid clock description in device tree\n",
+								__func__);
+		kfree(dev_clk);
+		return;
+	}
+
+	init.name = clk_name;
+	init.flags = 0;
+	parent_name = of_clk_get_parent_name(node, 0);
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+
+	dev_clk->hw.init = &init;
+
+	clk = clk_register(NULL, &dev_clk->hw);
+	if (WARN_ON(IS_ERR(clk))) {
+		kfree(dev_clk);
+		return;
+	}
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	clk_register_clkdev(clk, clk_name, NULL);
+}
+
+
+/* PLL clock related functions */
+
+#define to_clk_pll(_hw) container_of(_hw, struct clk_pll, hw)
+
+/* Helper macros for PLL_VT8500 */
+#define VT8500_PLL_MUL(x)	((x & 0x1F) << 1)
+#define VT8500_PLL_DIV(x)	((x & 0x100) ? 1 : 2)
+
+#define VT8500_BITS_TO_FREQ(r, m, d)					\
+				((r / d) * m)
+
+#define VT8500_BITS_TO_VAL(m, d)					\
+				((d == 2 ? 0 : 0x100) | ((m >> 1) & 0x1F))
+
+/* Helper macros for PLL_WM8650 */
+#define WM8650_PLL_MUL(x)	(x & 0x3FF)
+#define WM8650_PLL_DIV(x)	(((x >> 10) & 7) * (1 << ((x >> 13) & 3)))
+
+#define WM8650_BITS_TO_FREQ(r, m, d1, d2)				\
+				(r * m / (d1 * (1 << d2)))
+
+#define WM8650_BITS_TO_VAL(m, d1, d2)					\
+				((d2 << 13) | (d1 << 10) | (m & 0x3FF))
+
+
+static void vt8500_find_pll_bits(unsigned long rate, unsigned long parent_rate,
+				u32 *multiplier, u32 *prediv)
+{
+	unsigned long tclk;
+
+	/* sanity check */
+	if ((rate < parent_rate * 4) || (rate > parent_rate * 62)) {
+		pr_err("%s: requested rate out of range\n", __func__);
+		*multiplier = 0;
+		*prediv = 1;
+		return;
+	}
+	if (rate <= parent_rate * 31)
+		/* use the prediv to double the resolution */
+		*prediv = 2;
+	else
+		*prediv = 1;
+
+	*multiplier = rate / (parent_rate / *prediv);
+	tclk = (parent_rate / *prediv) * *multiplier;
+
+	if (tclk != rate)
+		pr_warn("%s: requested rate %lu, found rate %lu\n", __func__,
+								rate, tclk);
+}
+
+static void wm8650_find_pll_bits(unsigned long rate, unsigned long parent_rate,
+				u32 *multiplier, u32 *divisor1, u32 *divisor2)
+{
+	u32 mul, div1, div2;
+	u32 best_mul, best_div1, best_div2;
+	unsigned long tclk, rate_err, best_err;
+
+	best_err = (unsigned long)-1;
+
+	/* Find the closest match (lower or equal to requested) */
+	for (div1 = 5; div1 >= 3; div1--)
+		for (div2 = 3; div2 >= 0; div2--)
+			for (mul = 3; mul <= 1023; mul++) {
+				tclk = parent_rate * mul / (div1 * (1 << div2));
+				if (tclk > rate)
+					continue;
+				/* error will always be +ve */
+				rate_err = rate - tclk;
+				if (rate_err == 0) {
+					*multiplier = mul;
+					*divisor1 = div1;
+					*divisor2 = div2;
+					return;
+				}
+
+				if (rate_err < best_err) {
+					best_err = rate_err;
+					best_mul = mul;
+					best_div1 = div1;
+					best_div2 = div2;
+				}
+			}
+
+	/* if we got here, it wasn't an exact match */
+	pr_warn("%s: requested rate %lu, found rate %lu\n", __func__, rate,
+							rate - best_err);
+	*multiplier = mul;
+	*divisor1 = div1;
+	*divisor2 = div2;
+}
+
+static int vtwm_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct clk_pll *pll = to_clk_pll(hw);
+	u32 mul, div1, div2;
+	u32 pll_val;
+	unsigned long flags = 0;
+
+	/* sanity check */
+
+	switch (pll->type) {
+	case PLL_TYPE_VT8500:
+		vt8500_find_pll_bits(rate, parent_rate, &mul, &div1);
+		pll_val = VT8500_BITS_TO_VAL(mul, div1);
+		break;
+	case PLL_TYPE_WM8650:
+		wm8650_find_pll_bits(rate, parent_rate, &mul, &div1, &div2);
+		pll_val = WM8650_BITS_TO_VAL(mul, div1, div2);
+		break;
+	default:
+		pr_err("%s: invalid pll type\n", __func__);
+		return 0;
+	}
+
+	spin_lock_irqsave(pll->lock, flags);
+
+	vt8500_pmc_wait_busy();
+	writel(pll_val, pll->reg);
+	vt8500_pmc_wait_busy();
+
+	spin_unlock_irqrestore(pll->lock, flags);
+
+	return 0;
+}
+
+static long vtwm_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *prate)
+{
+	struct clk_pll *pll = to_clk_pll(hw);
+	u32 mul, div1, div2;
+	long round_rate;
+
+	switch (pll->type) {
+	case PLL_TYPE_VT8500:
+		vt8500_find_pll_bits(rate, *prate, &mul, &div1);
+		round_rate = VT8500_BITS_TO_FREQ(*prate, mul, div1);
+		break;
+	case PLL_TYPE_WM8650:
+		wm8650_find_pll_bits(rate, *prate, &mul, &div1, &div2);
+		round_rate = WM8650_BITS_TO_FREQ(*prate, mul, div1, div2);
+		break;
+	default:
+		round_rate = 0;
+	}
+
+	return round_rate;
+}
+
+static unsigned long vtwm_pll_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct clk_pll *pll = to_clk_pll(hw);
+	u32 pll_val = readl(pll->reg);
+	unsigned long pll_freq;
+
+	switch (pll->type) {
+	case PLL_TYPE_VT8500:
+		pll_freq = parent_rate * VT8500_PLL_MUL(pll_val);
+		pll_freq /= VT8500_PLL_DIV(pll_val);
+		break;
+	case PLL_TYPE_WM8650:
+		pll_freq = parent_rate * WM8650_PLL_MUL(pll_val);
+		pll_freq /= WM8650_PLL_DIV(pll_val);
+		break;
+	default:
+		pll_freq = 0;
+	}
+
+	return pll_freq;
+}
+
+const struct clk_ops vtwm_pll_ops = {
+	.round_rate = vtwm_pll_round_rate,
+	.set_rate = vtwm_pll_set_rate,
+	.recalc_rate = vtwm_pll_recalc_rate,
+};
+
+static __init void vtwm_pll_clk_init(struct device_node *node, int pll_type)
+{
+	u32 reg;
+	struct clk *clk;
+	struct clk_pll *pll_clk;
+	const char *clk_name = node->name;
+	const char *parent_name;
+	struct clk_init_data init;
+	int rc;
+
+	rc = of_property_read_u32(node, "reg", &reg);
+	if (WARN_ON(rc))
+		return;
+
+	pll_clk = kzalloc(sizeof(*pll_clk), GFP_KERNEL);
+	if (WARN_ON(!pll_clk))
+		return;
+
+	pll_clk->reg = pmc_base + reg;
+	pll_clk->lock = &_lock;
+	pll_clk->type = pll_type;
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+
+	init.name = clk_name;
+	init.ops = &vtwm_pll_ops;
+	init.flags = 0;
+	parent_name = of_clk_get_parent_name(node, 0);
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+
+	pll_clk->hw.init = &init;
+
+	clk = clk_register(NULL, &pll_clk->hw);
+	if (WARN_ON(IS_ERR(clk))) {
+		kfree(pll_clk);
+		return;
+	}
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	clk_register_clkdev(clk, clk_name, NULL);
+}
+
+
+/* Wrappers for initialization functions */
+
+static void __init vt8500_pll_init(struct device_node *node)
+{
+	vtwm_pll_clk_init(node, PLL_TYPE_VT8500);
+}
+
+static void __init wm8650_pll_init(struct device_node *node)
+{
+	vtwm_pll_clk_init(node, PLL_TYPE_WM8650);
+}
+
+static const __initconst struct of_device_id clk_match[] = {
+	{ .compatible = "fixed-clock", .data = of_fixed_clk_setup, },
+	{ .compatible = "via,vt8500-pll-clock", .data = vt8500_pll_init, },
+	{ .compatible = "wm,wm8650-pll-clock", .data = wm8650_pll_init, },
+	{ .compatible = "via,vt8500-device-clock",
+					.data = vtwm_device_clk_init, },
+	{ /* sentinel */ }
+};
+
+void __init vtwm_clk_init(void __iomem *base)
+{
+	if (!base)
+		return;
+
+	pmc_base = base;
+
+	of_clk_init(clk_match);
+}
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index efdfd009c27..56e4495ebeb 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -558,25 +558,6 @@ int clk_enable(struct clk *clk)
 EXPORT_SYMBOL_GPL(clk_enable);
 
 /**
- * clk_get_rate - return the rate of clk
- * @clk: the clk whose rate is being returned
- *
- * Simply returns the cached rate of the clk.  Does not query the hardware.  If
- * clk is NULL then returns 0.
- */
-unsigned long clk_get_rate(struct clk *clk)
-{
-	unsigned long rate;
-
-	mutex_lock(&prepare_lock);
-	rate = __clk_get_rate(clk);
-	mutex_unlock(&prepare_lock);
-
-	return rate;
-}
-EXPORT_SYMBOL_GPL(clk_get_rate);
-
-/**
  * __clk_round_rate - round the given rate for a clk
  * @clk: round the rate of this clock
  *
@@ -702,6 +683,30 @@ static void __clk_recalc_rates(struct clk *clk, unsigned long msg)
 }
 
 /**
+ * clk_get_rate - return the rate of clk
+ * @clk: the clk whose rate is being returned
+ *
+ * Simply returns the cached rate of the clk, unless CLK_GET_RATE_NOCACHE flag
+ * is set, which means a recalc_rate will be issued.
+ * If clk is NULL then returns 0.
+ */
+unsigned long clk_get_rate(struct clk *clk)
+{
+	unsigned long rate;
+
+	mutex_lock(&prepare_lock);
+
+	if (clk && (clk->flags & CLK_GET_RATE_NOCACHE))
+		__clk_recalc_rates(clk, 0);
+
+	rate = __clk_get_rate(clk);
+	mutex_unlock(&prepare_lock);
+
+	return rate;
+}
+EXPORT_SYMBOL_GPL(clk_get_rate);
+
+/**
  * __clk_speculate_rates
  * @clk: first clk in the subtree
  * @parent_rate: the "future" rate of clk's parent
@@ -1582,6 +1587,20 @@ struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec,
 }
 EXPORT_SYMBOL_GPL(of_clk_src_simple_get);
 
+struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data)
+{
+	struct clk_onecell_data *clk_data = data;
+	unsigned int idx = clkspec->args[0];
+
+	if (idx >= clk_data->clk_num) {
+		pr_err("%s: invalid clock index %d\n", __func__, idx);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return clk_data->clks[idx];
+}
+EXPORT_SYMBOL_GPL(of_clk_src_onecell_get);
+
 /**
  * of_clk_add_provider() - Register a clock provider for a node
  * @np: Device node pointer associated with clock provider
diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
index d423c9bdd71..442a3136387 100644
--- a/drivers/clk/clkdev.c
+++ b/drivers/clk/clkdev.c
@@ -171,51 +171,6 @@ void clk_put(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_put);
 
-static void devm_clk_release(struct device *dev, void *res)
-{
-	clk_put(*(struct clk **)res);
-}
-
-struct clk *devm_clk_get(struct device *dev, const char *id)
-{
-	struct clk **ptr, *clk;
-
-	ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	clk = clk_get(dev, id);
-	if (!IS_ERR(clk)) {
-		*ptr = clk;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return clk;
-}
-EXPORT_SYMBOL(devm_clk_get);
-
-static int devm_clk_match(struct device *dev, void *res, void *data)
-{
-	struct clk **c = res;
-	if (!c || !*c) {
-		WARN_ON(!c || !*c);
-		return 0;
-	}
-	return *c == data;
-}
-
-void devm_clk_put(struct device *dev, struct clk *clk)
-{
-	int ret;
-
-	ret = devres_destroy(dev, devm_clk_release, devm_clk_match, clk);
-
-	WARN_ON(ret);
-}
-EXPORT_SYMBOL(devm_clk_put);
-
 void clkdev_add(struct clk_lookup *cl)
 {
 	mutex_lock(&clocks_mutex);
diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile
new file mode 100644
index 00000000000..392d78044ce
--- /dev/null
+++ b/drivers/clk/mmp/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for mmp specific clk
+#
+
+obj-y += clk-apbc.o clk-apmu.o clk-frac.o
+
+obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o
+obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o
+obj-$(CONFIG_CPU_MMP2) += clk-mmp2.o
diff --git a/drivers/clk/mmp/clk-apbc.c b/drivers/clk/mmp/clk-apbc.c
new file mode 100644
index 00000000000..d14120eaa71
--- /dev/null
+++ b/drivers/clk/mmp/clk-apbc.c
@@ -0,0 +1,152 @@
+/*
+ * mmp APB clock operation source file
+ *
+ * Copyright (C) 2012 Marvell
+ * Chao Xie <xiechao.mail@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+/* Common APB clock register bit definitions */
+#define APBC_APBCLK	(1 << 0)  /* APB Bus Clock Enable */
+#define APBC_FNCLK	(1 << 1)  /* Functional Clock Enable */
+#define APBC_RST	(1 << 2)  /* Reset Generation */
+#define APBC_POWER	(1 << 7)  /* Reset Generation */
+
+#define to_clk_apbc(hw) container_of(hw, struct clk_apbc, hw)
+struct clk_apbc {
+	struct clk_hw		hw;
+	void __iomem		*base;
+	unsigned int		delay;
+	unsigned int		flags;
+	spinlock_t		*lock;
+};
+
+static int clk_apbc_prepare(struct clk_hw *hw)
+{
+	struct clk_apbc *apbc = to_clk_apbc(hw);
+	unsigned int data;
+	unsigned long flags = 0;
+
+	/*
+	 * It may share same register as MUX clock,
+	 * and it will impact FNCLK enable. Spinlock is needed
+	 */
+	if (apbc->lock)
+		spin_lock_irqsave(apbc->lock, flags);
+
+	data = readl_relaxed(apbc->base);
+	if (apbc->flags & APBC_POWER_CTRL)
+		data |= APBC_POWER;
+	data |= APBC_FNCLK;
+	writel_relaxed(data, apbc->base);
+
+	if (apbc->lock)
+		spin_unlock_irqrestore(apbc->lock, flags);
+
+	udelay(apbc->delay);
+
+	if (apbc->lock)
+		spin_lock_irqsave(apbc->lock, flags);
+
+	data = readl_relaxed(apbc->base);
+	data |= APBC_APBCLK;
+	writel_relaxed(data, apbc->base);
+
+	if (apbc->lock)
+		spin_unlock_irqrestore(apbc->lock, flags);
+
+	udelay(apbc->delay);
+
+	if (!(apbc->flags & APBC_NO_BUS_CTRL)) {
+		if (apbc->lock)
+			spin_lock_irqsave(apbc->lock, flags);
+
+		data = readl_relaxed(apbc->base);
+		data &= ~APBC_RST;
+		writel_relaxed(data, apbc->base);
+
+		if (apbc->lock)
+			spin_unlock_irqrestore(apbc->lock, flags);
+	}
+
+	return 0;
+}
+
+static void clk_apbc_unprepare(struct clk_hw *hw)
+{
+	struct clk_apbc *apbc = to_clk_apbc(hw);
+	unsigned long data;
+	unsigned long flags = 0;
+
+	if (apbc->lock)
+		spin_lock_irqsave(apbc->lock, flags);
+
+	data = readl_relaxed(apbc->base);
+	if (apbc->flags & APBC_POWER_CTRL)
+		data &= ~APBC_POWER;
+	data &= ~APBC_FNCLK;
+	writel_relaxed(data, apbc->base);
+
+	if (apbc->lock)
+		spin_unlock_irqrestore(apbc->lock, flags);
+
+	udelay(10);
+
+	if (apbc->lock)
+		spin_lock_irqsave(apbc->lock, flags);
+
+	data = readl_relaxed(apbc->base);
+	data &= ~APBC_APBCLK;
+	writel_relaxed(data, apbc->base);
+
+	if (apbc->lock)
+		spin_unlock_irqrestore(apbc->lock, flags);
+}
+
+struct clk_ops clk_apbc_ops = {
+	.prepare = clk_apbc_prepare,
+	.unprepare = clk_apbc_unprepare,
+};
+
+struct clk *mmp_clk_register_apbc(const char *name, const char *parent_name,
+		void __iomem *base, unsigned int delay,
+		unsigned int apbc_flags, spinlock_t *lock)
+{
+	struct clk_apbc *apbc;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	apbc = kzalloc(sizeof(*apbc), GFP_KERNEL);
+	if (!apbc)
+		return NULL;
+
+	init.name = name;
+	init.ops = &clk_apbc_ops;
+	init.flags = CLK_SET_RATE_PARENT;
+	init.parent_names = (parent_name ? &parent_name : NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
+	apbc->base = base;
+	apbc->delay = delay;
+	apbc->flags = apbc_flags;
+	apbc->lock = lock;
+	apbc->hw.init = &init;
+
+	clk = clk_register(NULL, &apbc->hw);
+	if (IS_ERR(clk))
+		kfree(apbc);
+
+	return clk;
+}
diff --git a/drivers/clk/mmp/clk-apmu.c b/drivers/clk/mmp/clk-apmu.c
new file mode 100644
index 00000000000..abe182b2377
--- /dev/null
+++ b/drivers/clk/mmp/clk-apmu.c
@@ -0,0 +1,97 @@
+/*
+ * mmp AXI peripharal clock operation source file
+ *
+ * Copyright (C) 2012 Marvell
+ * Chao Xie <xiechao.mail@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+#define to_clk_apmu(clk) (container_of(clk, struct clk_apmu, clk))
+struct clk_apmu {
+	struct clk_hw   hw;
+	void __iomem    *base;
+	u32		rst_mask;
+	u32		enable_mask;
+	spinlock_t	*lock;
+};
+
+static int clk_apmu_enable(struct clk_hw *hw)
+{
+	struct clk_apmu *apmu = to_clk_apmu(hw);
+	unsigned long data;
+	unsigned long flags = 0;
+
+	if (apmu->lock)
+		spin_lock_irqsave(apmu->lock, flags);
+
+	data = readl_relaxed(apmu->base) | apmu->enable_mask;
+	writel_relaxed(data, apmu->base);
+
+	if (apmu->lock)
+		spin_unlock_irqrestore(apmu->lock, flags);
+
+	return 0;
+}
+
+static void clk_apmu_disable(struct clk_hw *hw)
+{
+	struct clk_apmu *apmu = to_clk_apmu(hw);
+	unsigned long data;
+	unsigned long flags = 0;
+
+	if (apmu->lock)
+		spin_lock_irqsave(apmu->lock, flags);
+
+	data = readl_relaxed(apmu->base) & ~apmu->enable_mask;
+	writel_relaxed(data, apmu->base);
+
+	if (apmu->lock)
+		spin_unlock_irqrestore(apmu->lock, flags);
+}
+
+struct clk_ops clk_apmu_ops = {
+	.enable = clk_apmu_enable,
+	.disable = clk_apmu_disable,
+};
+
+struct clk *mmp_clk_register_apmu(const char *name, const char *parent_name,
+		void __iomem *base, u32 enable_mask, spinlock_t *lock)
+{
+	struct clk_apmu *apmu;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	apmu = kzalloc(sizeof(*apmu), GFP_KERNEL);
+	if (!apmu)
+		return NULL;
+
+	init.name = name;
+	init.ops = &clk_apmu_ops;
+	init.flags = CLK_SET_RATE_PARENT;
+	init.parent_names = (parent_name ? &parent_name : NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
+	apmu->base = base;
+	apmu->enable_mask = enable_mask;
+	apmu->lock = lock;
+	apmu->hw.init = &init;
+
+	clk = clk_register(NULL, &apmu->hw);
+
+	if (IS_ERR(clk))
+		kfree(apmu);
+
+	return clk;
+}
diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c
new file mode 100644
index 00000000000..80c1dd15d15
--- /dev/null
+++ b/drivers/clk/mmp/clk-frac.c
@@ -0,0 +1,153 @@
+/*
+ * mmp factor clock operation source file
+ *
+ * Copyright (C) 2012 Marvell
+ * Chao Xie <xiechao.mail@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+
+#include "clk.h"
+/*
+ * It is M/N clock
+ *
+ * Fout from synthesizer can be given from two equations:
+ * numerator/denominator = Fin / (Fout * factor)
+ */
+
+#define to_clk_factor(hw) container_of(hw, struct clk_factor, hw)
+struct clk_factor {
+	struct clk_hw		hw;
+	void __iomem		*base;
+	struct clk_factor_masks	*masks;
+	struct clk_factor_tbl	*ftbl;
+	unsigned int		ftbl_cnt;
+};
+
+static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate,
+		unsigned long *prate)
+{
+	struct clk_factor *factor = to_clk_factor(hw);
+	unsigned long rate = 0, prev_rate;
+	int i;
+
+	for (i = 0; i < factor->ftbl_cnt; i++) {
+		prev_rate = rate;
+		rate = (((*prate / 10000) * factor->ftbl[i].num) /
+			(factor->ftbl[i].den * factor->masks->factor)) * 10000;
+		if (rate > drate)
+			break;
+	}
+	if (i == 0)
+		return rate;
+	else
+		return prev_rate;
+}
+
+static unsigned long clk_factor_recalc_rate(struct clk_hw *hw,
+		unsigned long parent_rate)
+{
+	struct clk_factor *factor = to_clk_factor(hw);
+	struct clk_factor_masks *masks = factor->masks;
+	unsigned int val, num, den;
+
+	val = readl_relaxed(factor->base);
+
+	/* calculate numerator */
+	num = (val >> masks->num_shift) & masks->num_mask;
+
+	/* calculate denominator */
+	den = (val >> masks->den_shift) & masks->num_mask;
+
+	if (!den)
+		return 0;
+
+	return (((parent_rate / 10000)  * den) /
+			(num * factor->masks->factor)) * 10000;
+}
+
+/* Configures new clock rate*/
+static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate,
+				unsigned long prate)
+{
+	struct clk_factor *factor = to_clk_factor(hw);
+	struct clk_factor_masks *masks = factor->masks;
+	int i;
+	unsigned long val;
+	unsigned long prev_rate, rate = 0;
+
+	for (i = 0; i < factor->ftbl_cnt; i++) {
+		prev_rate = rate;
+		rate = (((prate / 10000) * factor->ftbl[i].num) /
+			(factor->ftbl[i].den * factor->masks->factor)) * 10000;
+		if (rate > drate)
+			break;
+	}
+	if (i > 0)
+		i--;
+
+	val = readl_relaxed(factor->base);
+
+	val &= ~(masks->num_mask << masks->num_shift);
+	val |= (factor->ftbl[i].num & masks->num_mask) << masks->num_shift;
+
+	val &= ~(masks->den_mask << masks->den_shift);
+	val |= (factor->ftbl[i].den & masks->den_mask) << masks->den_shift;
+
+	writel_relaxed(val, factor->base);
+
+	return 0;
+}
+
+static struct clk_ops clk_factor_ops = {
+	.recalc_rate = clk_factor_recalc_rate,
+	.round_rate = clk_factor_round_rate,
+	.set_rate = clk_factor_set_rate,
+};
+
+struct clk *mmp_clk_register_factor(const char *name, const char *parent_name,
+		unsigned long flags, void __iomem *base,
+		struct clk_factor_masks *masks, struct clk_factor_tbl *ftbl,
+		unsigned int ftbl_cnt)
+{
+	struct clk_factor *factor;
+	struct clk_init_data init;
+	struct clk *clk;
+
+	if (!masks) {
+		pr_err("%s: must pass a clk_factor_mask\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	factor = kzalloc(sizeof(*factor), GFP_KERNEL);
+	if (!factor) {
+		pr_err("%s: could not allocate factor  clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	/* struct clk_aux assignments */
+	factor->base = base;
+	factor->masks = masks;
+	factor->ftbl = ftbl;
+	factor->ftbl_cnt = ftbl_cnt;
+	factor->hw.init = &init;
+
+	init.name = name;
+	init.ops = &clk_factor_ops;
+	init.flags = flags;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+
+	clk = clk_register(NULL, &factor->hw);
+	if (IS_ERR_OR_NULL(clk))
+		kfree(factor);
+
+	return clk;
+}
diff --git a/drivers/clk/mmp/clk-mmp2.c b/drivers/clk/mmp/clk-mmp2.c
new file mode 100644
index 00000000000..ade435820c7
--- /dev/null
+++ b/drivers/clk/mmp/clk-mmp2.c
@@ -0,0 +1,449 @@
+/*
+ * mmp2 clock framework source file
+ *
+ * Copyright (C) 2012 Marvell
+ * Chao Xie <xiechao.mail@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+#include <mach/addr-map.h>
+
+#include "clk.h"
+
+#define APBC_RTC	0x0
+#define APBC_TWSI0	0x4
+#define APBC_TWSI1	0x8
+#define APBC_TWSI2	0xc
+#define APBC_TWSI3	0x10
+#define APBC_TWSI4	0x7c
+#define APBC_TWSI5	0x80
+#define APBC_KPC	0x18
+#define APBC_UART0	0x2c
+#define APBC_UART1	0x30
+#define APBC_UART2	0x34
+#define APBC_UART3	0x88
+#define APBC_GPIO	0x38
+#define APBC_PWM0	0x3c
+#define APBC_PWM1	0x40
+#define APBC_PWM2	0x44
+#define APBC_PWM3	0x48
+#define APBC_SSP0	0x50
+#define APBC_SSP1	0x54
+#define APBC_SSP2	0x58
+#define APBC_SSP3	0x5c
+#define APMU_SDH0	0x54
+#define APMU_SDH1	0x58
+#define APMU_SDH2	0xe8
+#define APMU_SDH3	0xec
+#define APMU_USB	0x5c
+#define APMU_DISP0	0x4c
+#define APMU_DISP1	0x110
+#define APMU_CCIC0	0x50
+#define APMU_CCIC1	0xf4
+#define MPMU_UART_PLL	0x14
+
+static DEFINE_SPINLOCK(clk_lock);
+
+static struct clk_factor_masks uart_factor_masks = {
+	.factor = 2,
+	.num_mask = 0x1fff,
+	.den_mask = 0x1fff,
+	.num_shift = 16,
+	.den_shift = 0,
+};
+
+static struct clk_factor_tbl uart_factor_tbl[] = {
+	{.num = 14634, .den = 2165},	/*14.745MHZ */
+	{.num = 3521, .den = 689},	/*19.23MHZ */
+	{.num = 9679, .den = 5728},	/*58.9824MHZ */
+	{.num = 15850, .den = 9451},	/*59.429MHZ */
+};
+
+static const char *uart_parent[] = {"uart_pll", "vctcxo"};
+static const char *ssp_parent[] = {"vctcxo_4", "vctcxo_2", "vctcxo", "pll1_16"};
+static const char *sdh_parent[] = {"pll1_4", "pll2", "usb_pll", "pll1"};
+static const char *disp_parent[] = {"pll1", "pll1_16", "pll2", "vctcxo"};
+static const char *ccic_parent[] = {"pll1_2", "pll1_16", "vctcxo"};
+
+void __init mmp2_clk_init(void)
+{
+	struct clk *clk;
+	struct clk *vctcxo;
+	void __iomem *mpmu_base;
+	void __iomem *apmu_base;
+	void __iomem *apbc_base;
+
+	mpmu_base = ioremap(APB_PHYS_BASE + 0x50000, SZ_4K);
+	if (mpmu_base == NULL) {
+		pr_err("error to ioremap MPMU base\n");
+		return;
+	}
+
+	apmu_base = ioremap(AXI_PHYS_BASE + 0x82800, SZ_4K);
+	if (apmu_base == NULL) {
+		pr_err("error to ioremap APMU base\n");
+		return;
+	}
+
+	apbc_base = ioremap(APB_PHYS_BASE + 0x15000, SZ_4K);
+	if (apbc_base == NULL) {
+		pr_err("error to ioremap APBC base\n");
+		return;
+	}
+
+	clk = clk_register_fixed_rate(NULL, "clk32", NULL, CLK_IS_ROOT, 3200);
+	clk_register_clkdev(clk, "clk32", NULL);
+
+	vctcxo = clk_register_fixed_rate(NULL, "vctcxo", NULL, CLK_IS_ROOT,
+				26000000);
+	clk_register_clkdev(vctcxo, "vctcxo", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "pll1", NULL, CLK_IS_ROOT,
+				800000000);
+	clk_register_clkdev(clk, "pll1", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "usb_pll", NULL, CLK_IS_ROOT,
+				480000000);
+	clk_register_clkdev(clk, "usb_pll", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "pll2", NULL, CLK_IS_ROOT,
+				960000000);
+	clk_register_clkdev(clk, "pll2", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_2", "pll1",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_2", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_4", "pll1_2",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_4", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_8", "pll1_4",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_8", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_16", "pll1_8",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_16", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_20", "pll1_4",
+				CLK_SET_RATE_PARENT, 1, 5);
+	clk_register_clkdev(clk, "pll1_20", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_3", "pll1",
+				CLK_SET_RATE_PARENT, 1, 3);
+	clk_register_clkdev(clk, "pll1_3", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_6", "pll1_3",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_6", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_12", "pll1_6",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_12", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_2", "pll2",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll2_2", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_4", "pll2_2",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll2_4", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_8", "pll2_4",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll2_8", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_16", "pll2_8",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll2_16", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_3", "pll2",
+				CLK_SET_RATE_PARENT, 1, 3);
+	clk_register_clkdev(clk, "pll2_3", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_6", "pll2_3",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll2_6", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll2_12", "pll2_6",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll2_12", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "vctcxo_2", "vctcxo",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "vctcxo_2", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "vctcxo_4", "vctcxo_2",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "vctcxo_4", NULL);
+
+	clk = mmp_clk_register_factor("uart_pll", "pll1_4", 0,
+				mpmu_base + MPMU_UART_PLL,
+				&uart_factor_masks, uart_factor_tbl,
+				ARRAY_SIZE(uart_factor_tbl));
+	clk_set_rate(clk, 14745600);
+	clk_register_clkdev(clk, "uart_pll", NULL);
+
+	clk = mmp_clk_register_apbc("twsi0", "vctcxo",
+				apbc_base + APBC_TWSI0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.0");
+
+	clk = mmp_clk_register_apbc("twsi1", "vctcxo",
+				apbc_base + APBC_TWSI1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.1");
+
+	clk = mmp_clk_register_apbc("twsi2", "vctcxo",
+				apbc_base + APBC_TWSI2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.2");
+
+	clk = mmp_clk_register_apbc("twsi3", "vctcxo",
+				apbc_base + APBC_TWSI3, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.3");
+
+	clk = mmp_clk_register_apbc("twsi4", "vctcxo",
+				apbc_base + APBC_TWSI4, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.4");
+
+	clk = mmp_clk_register_apbc("twsi5", "vctcxo",
+				apbc_base + APBC_TWSI5, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.5");
+
+	clk = mmp_clk_register_apbc("gpio", "vctcxo",
+				apbc_base + APBC_GPIO, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa-gpio");
+
+	clk = mmp_clk_register_apbc("kpc", "clk32",
+				apbc_base + APBC_KPC, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa27x-keypad");
+
+	clk = mmp_clk_register_apbc("rtc", "clk32",
+				apbc_base + APBC_RTC, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-rtc");
+
+	clk = mmp_clk_register_apbc("pwm0", "vctcxo",
+				apbc_base + APBC_PWM0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp2-pwm.0");
+
+	clk = mmp_clk_register_apbc("pwm1", "vctcxo",
+				apbc_base + APBC_PWM1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp2-pwm.1");
+
+	clk = mmp_clk_register_apbc("pwm2", "vctcxo",
+				apbc_base + APBC_PWM2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp2-pwm.2");
+
+	clk = mmp_clk_register_apbc("pwm3", "vctcxo",
+				apbc_base + APBC_PWM3, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp2-pwm.3");
+
+	clk = clk_register_mux(NULL, "uart0_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART0, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, vctcxo);
+	clk_register_clkdev(clk, "uart_mux.0", NULL);
+
+	clk = mmp_clk_register_apbc("uart0", "uart0_mux",
+				apbc_base + APBC_UART0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.0");
+
+	clk = clk_register_mux(NULL, "uart1_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART1, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, vctcxo);
+	clk_register_clkdev(clk, "uart_mux.1", NULL);
+
+	clk = mmp_clk_register_apbc("uart1", "uart1_mux",
+				apbc_base + APBC_UART1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.1");
+
+	clk = clk_register_mux(NULL, "uart2_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART2, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, vctcxo);
+	clk_register_clkdev(clk, "uart_mux.2", NULL);
+
+	clk = mmp_clk_register_apbc("uart2", "uart2_mux",
+				apbc_base + APBC_UART2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.2");
+
+	clk = clk_register_mux(NULL, "uart3_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART3, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, vctcxo);
+	clk_register_clkdev(clk, "uart_mux.3", NULL);
+
+	clk = mmp_clk_register_apbc("uart3", "uart3_mux",
+				apbc_base + APBC_UART3, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.3");
+
+	clk = clk_register_mux(NULL, "ssp0_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP0, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "uart_mux.0", NULL);
+
+	clk = mmp_clk_register_apbc("ssp0", "ssp0_mux",
+				apbc_base + APBC_SSP0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.0");
+
+	clk = clk_register_mux(NULL, "ssp1_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP1, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.1", NULL);
+
+	clk = mmp_clk_register_apbc("ssp1", "ssp1_mux",
+				apbc_base + APBC_SSP1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.1");
+
+	clk = clk_register_mux(NULL, "ssp2_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP2, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.2", NULL);
+
+	clk = mmp_clk_register_apbc("ssp2", "ssp2_mux",
+				apbc_base + APBC_SSP2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.2");
+
+	clk = clk_register_mux(NULL, "ssp3_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP3, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.3", NULL);
+
+	clk = mmp_clk_register_apbc("ssp3", "ssp3_mux",
+				apbc_base + APBC_SSP3, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.3");
+
+	clk = clk_register_mux(NULL, "sdh_mux", sdh_parent,
+				ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_SDH0, 8, 2, 0, &clk_lock);
+	clk_register_clkdev(clk, "sdh_mux", NULL);
+
+	clk = clk_register_divider(NULL, "sdh_div", "sdh_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_SDH0,
+				10, 4, CLK_DIVIDER_ONE_BASED, &clk_lock);
+	clk_register_clkdev(clk, "sdh_div", NULL);
+
+	clk = mmp_clk_register_apmu("sdh0", "sdh_div", apmu_base + APMU_SDH0,
+				0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxav3.0");
+
+	clk = mmp_clk_register_apmu("sdh1", "sdh_div", apmu_base + APMU_SDH1,
+				0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxav3.1");
+
+	clk = mmp_clk_register_apmu("sdh2", "sdh_div", apmu_base + APMU_SDH2,
+				0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxav3.2");
+
+	clk = mmp_clk_register_apmu("sdh3", "sdh_div", apmu_base + APMU_SDH3,
+				0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxav3.3");
+
+	clk = mmp_clk_register_apmu("usb", "usb_pll", apmu_base + APMU_USB,
+				0x9, &clk_lock);
+	clk_register_clkdev(clk, "usb_clk", NULL);
+
+	clk = clk_register_mux(NULL, "disp0_mux", disp_parent,
+				ARRAY_SIZE(disp_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_DISP0, 6, 2, 0, &clk_lock);
+	clk_register_clkdev(clk, "disp_mux.0", NULL);
+
+	clk = clk_register_divider(NULL, "disp0_div", "disp0_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_DISP0,
+				8, 4, CLK_DIVIDER_ONE_BASED, &clk_lock);
+	clk_register_clkdev(clk, "disp_div.0", NULL);
+
+	clk = mmp_clk_register_apmu("disp0", "disp0_div",
+				apmu_base + APMU_DISP0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-disp.0");
+
+	clk = clk_register_divider(NULL, "disp0_sphy_div", "disp0_mux", 0,
+				apmu_base + APMU_DISP0, 15, 5, 0, &clk_lock);
+	clk_register_clkdev(clk, "disp_sphy_div.0", NULL);
+
+	clk = mmp_clk_register_apmu("disp0_sphy", "disp0_sphy_div",
+				apmu_base + APMU_DISP0, 0x1024, &clk_lock);
+	clk_register_clkdev(clk, "disp_sphy.0", NULL);
+
+	clk = clk_register_mux(NULL, "disp1_mux", disp_parent,
+				ARRAY_SIZE(disp_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_DISP1, 6, 2, 0, &clk_lock);
+	clk_register_clkdev(clk, "disp_mux.1", NULL);
+
+	clk = clk_register_divider(NULL, "disp1_div", "disp1_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_DISP1,
+				8, 4, CLK_DIVIDER_ONE_BASED, &clk_lock);
+	clk_register_clkdev(clk, "disp_div.1", NULL);
+
+	clk = mmp_clk_register_apmu("disp1", "disp1_div",
+				apmu_base + APMU_DISP1, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-disp.1");
+
+	clk = mmp_clk_register_apmu("ccic_arbiter", "vctcxo",
+				apmu_base + APMU_CCIC0, 0x1800, &clk_lock);
+	clk_register_clkdev(clk, "ccic_arbiter", NULL);
+
+	clk = clk_register_mux(NULL, "ccic0_mux", ccic_parent,
+				ARRAY_SIZE(ccic_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_CCIC0, 6, 2, 0, &clk_lock);
+	clk_register_clkdev(clk, "ccic_mux.0", NULL);
+
+	clk = clk_register_divider(NULL, "ccic0_div", "ccic0_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0,
+				17, 4, CLK_DIVIDER_ONE_BASED, &clk_lock);
+	clk_register_clkdev(clk, "ccic_div.0", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0", "ccic0_div",
+				apmu_base + APMU_CCIC0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, "fnclk", "mmp-ccic.0");
+
+	clk = mmp_clk_register_apmu("ccic0_phy", "ccic0_div",
+				apmu_base + APMU_CCIC0, 0x24, &clk_lock);
+	clk_register_clkdev(clk, "phyclk", "mmp-ccic.0");
+
+	clk = clk_register_divider(NULL, "ccic0_sphy_div", "ccic0_div",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0,
+				10, 5, 0, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk_div", "mmp-ccic.0");
+
+	clk = mmp_clk_register_apmu("ccic0_sphy", "ccic0_sphy_div",
+				apmu_base + APMU_CCIC0, 0x300, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk", "mmp-ccic.0");
+
+	clk = clk_register_mux(NULL, "ccic1_mux", ccic_parent,
+				ARRAY_SIZE(ccic_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_CCIC1, 6, 2, 0, &clk_lock);
+	clk_register_clkdev(clk, "ccic_mux.1", NULL);
+
+	clk = clk_register_divider(NULL, "ccic1_div", "ccic1_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC1,
+				16, 4, CLK_DIVIDER_ONE_BASED, &clk_lock);
+	clk_register_clkdev(clk, "ccic_div.1", NULL);
+
+	clk = mmp_clk_register_apmu("ccic1", "ccic1_div",
+				apmu_base + APMU_CCIC1, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, "fnclk", "mmp-ccic.1");
+
+	clk = mmp_clk_register_apmu("ccic1_phy", "ccic1_div",
+				apmu_base + APMU_CCIC1, 0x24, &clk_lock);
+	clk_register_clkdev(clk, "phyclk", "mmp-ccic.1");
+
+	clk = clk_register_divider(NULL, "ccic1_sphy_div", "ccic1_div",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC1,
+				10, 5, 0, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk_div", "mmp-ccic.1");
+
+	clk = mmp_clk_register_apmu("ccic1_sphy", "ccic1_sphy_div",
+				apmu_base + APMU_CCIC1, 0x300, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk", "mmp-ccic.1");
+}
diff --git a/drivers/clk/mmp/clk-pxa168.c b/drivers/clk/mmp/clk-pxa168.c
new file mode 100644
index 00000000000..e8d036c12cb
--- /dev/null
+++ b/drivers/clk/mmp/clk-pxa168.c
@@ -0,0 +1,346 @@
+/*
+ * pxa168 clock framework source file
+ *
+ * Copyright (C) 2012 Marvell
+ * Chao Xie <xiechao.mail@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+#include <mach/addr-map.h>
+
+#include "clk.h"
+
+#define APBC_RTC	0x28
+#define APBC_TWSI0	0x2c
+#define APBC_KPC	0x30
+#define APBC_UART0	0x0
+#define APBC_UART1	0x4
+#define APBC_GPIO	0x8
+#define APBC_PWM0	0xc
+#define APBC_PWM1	0x10
+#define APBC_PWM2	0x14
+#define APBC_PWM3	0x18
+#define APBC_SSP0	0x81c
+#define APBC_SSP1	0x820
+#define APBC_SSP2	0x84c
+#define APBC_SSP3	0x858
+#define APBC_SSP4	0x85c
+#define APBC_TWSI1	0x6c
+#define APBC_UART2	0x70
+#define APMU_SDH0	0x54
+#define APMU_SDH1	0x58
+#define APMU_USB	0x5c
+#define APMU_DISP0	0x4c
+#define APMU_CCIC0	0x50
+#define APMU_DFC	0x60
+#define MPMU_UART_PLL	0x14
+
+static DEFINE_SPINLOCK(clk_lock);
+
+static struct clk_factor_masks uart_factor_masks = {
+	.factor = 2,
+	.num_mask = 0x1fff,
+	.den_mask = 0x1fff,
+	.num_shift = 16,
+	.den_shift = 0,
+};
+
+static struct clk_factor_tbl uart_factor_tbl[] = {
+	{.num = 8125, .den = 1536},	/*14.745MHZ */
+};
+
+static const char *uart_parent[] = {"pll1_3_16", "uart_pll"};
+static const char *ssp_parent[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"};
+static const char *sdh_parent[] = {"pll1_12", "pll1_13"};
+static const char *disp_parent[] = {"pll1_2", "pll1_12"};
+static const char *ccic_parent[] = {"pll1_2", "pll1_12"};
+static const char *ccic_phy_parent[] = {"pll1_6", "pll1_12"};
+
+void __init pxa168_clk_init(void)
+{
+	struct clk *clk;
+	struct clk *uart_pll;
+	void __iomem *mpmu_base;
+	void __iomem *apmu_base;
+	void __iomem *apbc_base;
+
+	mpmu_base = ioremap(APB_PHYS_BASE + 0x50000, SZ_4K);
+	if (mpmu_base == NULL) {
+		pr_err("error to ioremap MPMU base\n");
+		return;
+	}
+
+	apmu_base = ioremap(AXI_PHYS_BASE + 0x82800, SZ_4K);
+	if (apmu_base == NULL) {
+		pr_err("error to ioremap APMU base\n");
+		return;
+	}
+
+	apbc_base = ioremap(APB_PHYS_BASE + 0x15000, SZ_4K);
+	if (apbc_base == NULL) {
+		pr_err("error to ioremap APBC base\n");
+		return;
+	}
+
+	clk = clk_register_fixed_rate(NULL, "clk32", NULL, CLK_IS_ROOT, 3200);
+	clk_register_clkdev(clk, "clk32", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "vctcxo", NULL, CLK_IS_ROOT,
+				26000000);
+	clk_register_clkdev(clk, "vctcxo", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "pll1", NULL, CLK_IS_ROOT,
+				624000000);
+	clk_register_clkdev(clk, "pll1", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_2", "pll1",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_2", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_4", "pll1_2",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_4", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_8", "pll1_4",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_8", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_16", "pll1_8",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_16", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_6", "pll1_2",
+				CLK_SET_RATE_PARENT, 1, 3);
+	clk_register_clkdev(clk, "pll1_6", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_12", "pll1_6",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_12", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_24", "pll1_12",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_24", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_48", "pll1_24",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_48", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_96", "pll1_48",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_96", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_13", "pll1",
+				CLK_SET_RATE_PARENT, 1, 13);
+	clk_register_clkdev(clk, "pll1_13", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_13_1_5", "pll1",
+				CLK_SET_RATE_PARENT, 2, 3);
+	clk_register_clkdev(clk, "pll1_13_1_5", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_2_1_5", "pll1",
+				CLK_SET_RATE_PARENT, 2, 3);
+	clk_register_clkdev(clk, "pll1_2_1_5", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_3_16", "pll1",
+				CLK_SET_RATE_PARENT, 3, 16);
+	clk_register_clkdev(clk, "pll1_3_16", NULL);
+
+	uart_pll = mmp_clk_register_factor("uart_pll", "pll1_4", 0,
+				mpmu_base + MPMU_UART_PLL,
+				&uart_factor_masks, uart_factor_tbl,
+				ARRAY_SIZE(uart_factor_tbl));
+	clk_set_rate(uart_pll, 14745600);
+	clk_register_clkdev(uart_pll, "uart_pll", NULL);
+
+	clk = mmp_clk_register_apbc("twsi0", "pll1_13_1_5",
+				apbc_base + APBC_TWSI0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.0");
+
+	clk = mmp_clk_register_apbc("twsi1", "pll1_13_1_5",
+				apbc_base + APBC_TWSI1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.1");
+
+	clk = mmp_clk_register_apbc("gpio", "vctcxo",
+				apbc_base + APBC_GPIO, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa-gpio");
+
+	clk = mmp_clk_register_apbc("kpc", "clk32",
+				apbc_base + APBC_KPC, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa27x-keypad");
+
+	clk = mmp_clk_register_apbc("rtc", "clk32",
+				apbc_base + APBC_RTC, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sa1100-rtc");
+
+	clk = mmp_clk_register_apbc("pwm0", "pll1_48",
+				apbc_base + APBC_PWM0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa168-pwm.0");
+
+	clk = mmp_clk_register_apbc("pwm1", "pll1_48",
+				apbc_base + APBC_PWM1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa168-pwm.1");
+
+	clk = mmp_clk_register_apbc("pwm2", "pll1_48",
+				apbc_base + APBC_PWM2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa168-pwm.2");
+
+	clk = mmp_clk_register_apbc("pwm3", "pll1_48",
+				apbc_base + APBC_PWM3, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa168-pwm.3");
+
+	clk = clk_register_mux(NULL, "uart0_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART0, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, uart_pll);
+	clk_register_clkdev(clk, "uart_mux.0", NULL);
+
+	clk = mmp_clk_register_apbc("uart0", "uart0_mux",
+				apbc_base + APBC_UART0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.0");
+
+	clk = clk_register_mux(NULL, "uart1_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART1, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, uart_pll);
+	clk_register_clkdev(clk, "uart_mux.1", NULL);
+
+	clk = mmp_clk_register_apbc("uart1", "uart1_mux",
+				apbc_base + APBC_UART1,	10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.1");
+
+	clk = clk_register_mux(NULL, "uart2_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART2, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, uart_pll);
+	clk_register_clkdev(clk, "uart_mux.2", NULL);
+
+	clk = mmp_clk_register_apbc("uart2", "uart2_mux",
+				apbc_base + APBC_UART2,	10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.2");
+
+	clk = clk_register_mux(NULL, "ssp0_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP0, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "uart_mux.0", NULL);
+
+	clk = mmp_clk_register_apbc("ssp0", "ssp0_mux", apbc_base + APBC_SSP0,
+				10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.0");
+
+	clk = clk_register_mux(NULL, "ssp1_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP1, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.1", NULL);
+
+	clk = mmp_clk_register_apbc("ssp1", "ssp1_mux", apbc_base + APBC_SSP1,
+				10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.1");
+
+	clk = clk_register_mux(NULL, "ssp2_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP2, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.2", NULL);
+
+	clk = mmp_clk_register_apbc("ssp2", "ssp1_mux", apbc_base + APBC_SSP2,
+				10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.2");
+
+	clk = clk_register_mux(NULL, "ssp3_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP3, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.3", NULL);
+
+	clk = mmp_clk_register_apbc("ssp3", "ssp1_mux", apbc_base + APBC_SSP3,
+				10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.3");
+
+	clk = clk_register_mux(NULL, "ssp4_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP4, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.4", NULL);
+
+	clk = mmp_clk_register_apbc("ssp4", "ssp1_mux", apbc_base + APBC_SSP4,
+				10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.4");
+
+	clk = mmp_clk_register_apmu("dfc", "pll1_4", apmu_base + APMU_DFC,
+				0x19b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa3xx-nand.0");
+
+	clk = clk_register_mux(NULL, "sdh0_mux", sdh_parent,
+				ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_SDH0, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "sdh0_mux", NULL);
+
+	clk = mmp_clk_register_apmu("sdh0", "sdh_mux", apmu_base + APMU_SDH0,
+				0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxa.0");
+
+	clk = clk_register_mux(NULL, "sdh1_mux", sdh_parent,
+				ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_SDH1, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "sdh1_mux", NULL);
+
+	clk = mmp_clk_register_apmu("sdh1", "sdh1_mux", apmu_base + APMU_SDH1,
+				0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxa.1");
+
+	clk = mmp_clk_register_apmu("usb", "usb_pll", apmu_base + APMU_USB,
+				0x9, &clk_lock);
+	clk_register_clkdev(clk, "usb_clk", NULL);
+
+	clk = mmp_clk_register_apmu("sph", "usb_pll", apmu_base + APMU_USB,
+				0x12, &clk_lock);
+	clk_register_clkdev(clk, "sph_clk", NULL);
+
+	clk = clk_register_mux(NULL, "disp0_mux", disp_parent,
+				ARRAY_SIZE(disp_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_DISP0, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "disp_mux.0", NULL);
+
+	clk = mmp_clk_register_apmu("disp0", "disp0_mux",
+				apmu_base + APMU_DISP0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, "fnclk", "mmp-disp.0");
+
+	clk = mmp_clk_register_apmu("disp0_hclk", "disp0_mux",
+				apmu_base + APMU_DISP0, 0x24, &clk_lock);
+	clk_register_clkdev(clk, "hclk", "mmp-disp.0");
+
+	clk = clk_register_mux(NULL, "ccic0_mux", ccic_parent,
+				ARRAY_SIZE(ccic_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_CCIC0, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "ccic_mux.0", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0", "ccic0_mux",
+				apmu_base + APMU_CCIC0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, "fnclk", "mmp-ccic.0");
+
+	clk = clk_register_mux(NULL, "ccic0_phy_mux", ccic_phy_parent,
+				ARRAY_SIZE(ccic_phy_parent),
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0,
+				7, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "ccic_phy_mux.0", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0_phy", "ccic0_phy_mux",
+				apmu_base + APMU_CCIC0, 0x24, &clk_lock);
+	clk_register_clkdev(clk, "phyclk", "mmp-ccic.0");
+
+	clk = clk_register_divider(NULL, "ccic0_sphy_div", "ccic0_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0,
+				10, 5, 0, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk_div", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0_sphy", "ccic0_sphy_div",
+				apmu_base + APMU_CCIC0, 0x300, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk", "mmp-ccic.0");
+}
diff --git a/drivers/clk/mmp/clk-pxa910.c b/drivers/clk/mmp/clk-pxa910.c
new file mode 100644
index 00000000000..7048c31d6e7
--- /dev/null
+++ b/drivers/clk/mmp/clk-pxa910.c
@@ -0,0 +1,320 @@
+/*
+ * pxa910 clock framework source file
+ *
+ * Copyright (C) 2012 Marvell
+ * Chao Xie <xiechao.mail@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+#include <mach/addr-map.h>
+
+#include "clk.h"
+
+#define APBC_RTC	0x28
+#define APBC_TWSI0	0x2c
+#define APBC_KPC	0x18
+#define APBC_UART0	0x0
+#define APBC_UART1	0x4
+#define APBC_GPIO	0x8
+#define APBC_PWM0	0xc
+#define APBC_PWM1	0x10
+#define APBC_PWM2	0x14
+#define APBC_PWM3	0x18
+#define APBC_SSP0	0x1c
+#define APBC_SSP1	0x20
+#define APBC_SSP2	0x4c
+#define APBCP_TWSI1	0x28
+#define APBCP_UART2	0x1c
+#define APMU_SDH0	0x54
+#define APMU_SDH1	0x58
+#define APMU_USB	0x5c
+#define APMU_DISP0	0x4c
+#define APMU_CCIC0	0x50
+#define APMU_DFC	0x60
+#define MPMU_UART_PLL	0x14
+
+static DEFINE_SPINLOCK(clk_lock);
+
+static struct clk_factor_masks uart_factor_masks = {
+	.factor = 2,
+	.num_mask = 0x1fff,
+	.den_mask = 0x1fff,
+	.num_shift = 16,
+	.den_shift = 0,
+};
+
+static struct clk_factor_tbl uart_factor_tbl[] = {
+	{.num = 8125, .den = 1536},	/*14.745MHZ */
+};
+
+static const char *uart_parent[] = {"pll1_3_16", "uart_pll"};
+static const char *ssp_parent[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"};
+static const char *sdh_parent[] = {"pll1_12", "pll1_13"};
+static const char *disp_parent[] = {"pll1_2", "pll1_12"};
+static const char *ccic_parent[] = {"pll1_2", "pll1_12"};
+static const char *ccic_phy_parent[] = {"pll1_6", "pll1_12"};
+
+void __init pxa910_clk_init(void)
+{
+	struct clk *clk;
+	struct clk *uart_pll;
+	void __iomem *mpmu_base;
+	void __iomem *apmu_base;
+	void __iomem *apbcp_base;
+	void __iomem *apbc_base;
+
+	mpmu_base = ioremap(APB_PHYS_BASE + 0x50000, SZ_4K);
+	if (mpmu_base == NULL) {
+		pr_err("error to ioremap MPMU base\n");
+		return;
+	}
+
+	apmu_base = ioremap(AXI_PHYS_BASE + 0x82800, SZ_4K);
+	if (apmu_base == NULL) {
+		pr_err("error to ioremap APMU base\n");
+		return;
+	}
+
+	apbcp_base = ioremap(APB_PHYS_BASE + 0x3b000, SZ_4K);
+	if (apbcp_base == NULL) {
+		pr_err("error to ioremap APBC extension base\n");
+		return;
+	}
+
+	apbc_base = ioremap(APB_PHYS_BASE + 0x15000, SZ_4K);
+	if (apbc_base == NULL) {
+		pr_err("error to ioremap APBC base\n");
+		return;
+	}
+
+	clk = clk_register_fixed_rate(NULL, "clk32", NULL, CLK_IS_ROOT, 3200);
+	clk_register_clkdev(clk, "clk32", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "vctcxo", NULL, CLK_IS_ROOT,
+				26000000);
+	clk_register_clkdev(clk, "vctcxo", NULL);
+
+	clk = clk_register_fixed_rate(NULL, "pll1", NULL, CLK_IS_ROOT,
+				624000000);
+	clk_register_clkdev(clk, "pll1", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_2", "pll1",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_2", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_4", "pll1_2",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_4", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_8", "pll1_4",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_8", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_16", "pll1_8",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_16", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_6", "pll1_2",
+				CLK_SET_RATE_PARENT, 1, 3);
+	clk_register_clkdev(clk, "pll1_6", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_12", "pll1_6",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_12", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_24", "pll1_12",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_24", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_48", "pll1_24",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_48", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_96", "pll1_48",
+				CLK_SET_RATE_PARENT, 1, 2);
+	clk_register_clkdev(clk, "pll1_96", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_13", "pll1",
+				CLK_SET_RATE_PARENT, 1, 13);
+	clk_register_clkdev(clk, "pll1_13", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_13_1_5", "pll1",
+				CLK_SET_RATE_PARENT, 2, 3);
+	clk_register_clkdev(clk, "pll1_13_1_5", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_2_1_5", "pll1",
+				CLK_SET_RATE_PARENT, 2, 3);
+	clk_register_clkdev(clk, "pll1_2_1_5", NULL);
+
+	clk = clk_register_fixed_factor(NULL, "pll1_3_16", "pll1",
+				CLK_SET_RATE_PARENT, 3, 16);
+	clk_register_clkdev(clk, "pll1_3_16", NULL);
+
+	uart_pll =  mmp_clk_register_factor("uart_pll", "pll1_4", 0,
+				mpmu_base + MPMU_UART_PLL,
+				&uart_factor_masks, uart_factor_tbl,
+				ARRAY_SIZE(uart_factor_tbl));
+	clk_set_rate(uart_pll, 14745600);
+	clk_register_clkdev(uart_pll, "uart_pll", NULL);
+
+	clk = mmp_clk_register_apbc("twsi0", "pll1_13_1_5",
+				apbc_base + APBC_TWSI0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.0");
+
+	clk = mmp_clk_register_apbc("twsi1", "pll1_13_1_5",
+				apbcp_base + APBCP_TWSI1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-i2c.1");
+
+	clk = mmp_clk_register_apbc("gpio", "vctcxo",
+				apbc_base + APBC_GPIO, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa-gpio");
+
+	clk = mmp_clk_register_apbc("kpc", "clk32",
+				apbc_base + APBC_KPC, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa27x-keypad");
+
+	clk = mmp_clk_register_apbc("rtc", "clk32",
+				apbc_base + APBC_RTC, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sa1100-rtc");
+
+	clk = mmp_clk_register_apbc("pwm0", "pll1_48",
+				apbc_base + APBC_PWM0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa910-pwm.0");
+
+	clk = mmp_clk_register_apbc("pwm1", "pll1_48",
+				apbc_base + APBC_PWM1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa910-pwm.1");
+
+	clk = mmp_clk_register_apbc("pwm2", "pll1_48",
+				apbc_base + APBC_PWM2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa910-pwm.2");
+
+	clk = mmp_clk_register_apbc("pwm3", "pll1_48",
+				apbc_base + APBC_PWM3, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa910-pwm.3");
+
+	clk = clk_register_mux(NULL, "uart0_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART0, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, uart_pll);
+	clk_register_clkdev(clk, "uart_mux.0", NULL);
+
+	clk = mmp_clk_register_apbc("uart0", "uart0_mux",
+				apbc_base + APBC_UART0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.0");
+
+	clk = clk_register_mux(NULL, "uart1_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_UART1, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, uart_pll);
+	clk_register_clkdev(clk, "uart_mux.1", NULL);
+
+	clk = mmp_clk_register_apbc("uart1", "uart1_mux",
+				apbc_base + APBC_UART1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.1");
+
+	clk = clk_register_mux(NULL, "uart2_mux", uart_parent,
+				ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT,
+				apbcp_base + APBCP_UART2, 4, 3, 0, &clk_lock);
+	clk_set_parent(clk, uart_pll);
+	clk_register_clkdev(clk, "uart_mux.2", NULL);
+
+	clk = mmp_clk_register_apbc("uart2", "uart2_mux",
+				apbcp_base + APBCP_UART2, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa2xx-uart.2");
+
+	clk = clk_register_mux(NULL, "ssp0_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP0, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "uart_mux.0", NULL);
+
+	clk = mmp_clk_register_apbc("ssp0", "ssp0_mux",
+				apbc_base + APBC_SSP0, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.0");
+
+	clk = clk_register_mux(NULL, "ssp1_mux", ssp_parent,
+				ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT,
+				apbc_base + APBC_SSP1, 4, 3, 0, &clk_lock);
+	clk_register_clkdev(clk, "ssp_mux.1", NULL);
+
+	clk = mmp_clk_register_apbc("ssp1", "ssp1_mux",
+				apbc_base + APBC_SSP1, 10, 0, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-ssp.1");
+
+	clk = mmp_clk_register_apmu("dfc", "pll1_4",
+				apmu_base + APMU_DFC, 0x19b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "pxa3xx-nand.0");
+
+	clk = clk_register_mux(NULL, "sdh0_mux", sdh_parent,
+				ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_SDH0, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "sdh0_mux", NULL);
+
+	clk = mmp_clk_register_apmu("sdh0", "sdh_mux",
+				apmu_base + APMU_SDH0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxa.0");
+
+	clk = clk_register_mux(NULL, "sdh1_mux", sdh_parent,
+				ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_SDH1, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "sdh1_mux", NULL);
+
+	clk = mmp_clk_register_apmu("sdh1", "sdh1_mux",
+				apmu_base + APMU_SDH1, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "sdhci-pxa.1");
+
+	clk = mmp_clk_register_apmu("usb", "usb_pll",
+				apmu_base + APMU_USB, 0x9, &clk_lock);
+	clk_register_clkdev(clk, "usb_clk", NULL);
+
+	clk = mmp_clk_register_apmu("sph", "usb_pll",
+				apmu_base + APMU_USB, 0x12, &clk_lock);
+	clk_register_clkdev(clk, "sph_clk", NULL);
+
+	clk = clk_register_mux(NULL, "disp0_mux", disp_parent,
+				ARRAY_SIZE(disp_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_DISP0, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "disp_mux.0", NULL);
+
+	clk = mmp_clk_register_apmu("disp0", "disp0_mux",
+				apmu_base + APMU_DISP0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, NULL, "mmp-disp.0");
+
+	clk = clk_register_mux(NULL, "ccic0_mux", ccic_parent,
+				ARRAY_SIZE(ccic_parent), CLK_SET_RATE_PARENT,
+				apmu_base + APMU_CCIC0, 6, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "ccic_mux.0", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0", "ccic0_mux",
+				apmu_base + APMU_CCIC0, 0x1b, &clk_lock);
+	clk_register_clkdev(clk, "fnclk", "mmp-ccic.0");
+
+	clk = clk_register_mux(NULL, "ccic0_phy_mux", ccic_phy_parent,
+				ARRAY_SIZE(ccic_phy_parent),
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0,
+				7, 1, 0, &clk_lock);
+	clk_register_clkdev(clk, "ccic_phy_mux.0", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0_phy", "ccic0_phy_mux",
+				apmu_base + APMU_CCIC0, 0x24, &clk_lock);
+	clk_register_clkdev(clk, "phyclk", "mmp-ccic.0");
+
+	clk = clk_register_divider(NULL, "ccic0_sphy_div", "ccic0_mux",
+				CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0,
+				10, 5, 0, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk_div", NULL);
+
+	clk = mmp_clk_register_apmu("ccic0_sphy", "ccic0_sphy_div",
+				apmu_base + APMU_CCIC0, 0x300, &clk_lock);
+	clk_register_clkdev(clk, "sphyclk", "mmp-ccic.0");
+}
diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h
new file mode 100644
index 00000000000..ab86dd4a416
--- /dev/null
+++ b/drivers/clk/mmp/clk.h
@@ -0,0 +1,35 @@
+#ifndef __MACH_MMP_CLK_H
+#define __MACH_MMP_CLK_H
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+
+#define APBC_NO_BUS_CTRL	BIT(0)
+#define APBC_POWER_CTRL		BIT(1)
+
+struct clk_factor_masks {
+	unsigned int	factor;
+	unsigned int	num_mask;
+	unsigned int	den_mask;
+	unsigned int	num_shift;
+	unsigned int	den_shift;
+};
+
+struct clk_factor_tbl {
+	unsigned int num;
+	unsigned int den;
+};
+
+extern struct clk *mmp_clk_register_pll2(const char *name,
+		const char *parent_name, unsigned long flags);
+extern struct clk *mmp_clk_register_apbc(const char *name,
+		const char *parent_name, void __iomem *base,
+		unsigned int delay, unsigned int apbc_flags, spinlock_t *lock);
+extern struct clk *mmp_clk_register_apmu(const char *name,
+		const char *parent_name, void __iomem *base, u32 enable_mask,
+		spinlock_t *lock);
+extern struct clk *mmp_clk_register_factor(const char *name,
+		const char *parent_name, unsigned long flags,
+		void __iomem *base, struct clk_factor_masks *masks,
+		struct clk_factor_tbl *ftbl, unsigned int ftbl_cnt);
+#endif
diff --git a/drivers/clk/mxs/Makefile b/drivers/clk/mxs/Makefile
index 7bedeec0852..a6a22237e86 100644
--- a/drivers/clk/mxs/Makefile
+++ b/drivers/clk/mxs/Makefile
@@ -2,7 +2,7 @@
 # Makefile for mxs specific clk
 #
 
-obj-y += clk.o clk-pll.o clk-ref.o clk-div.o clk-frac.o
+obj-y += clk.o clk-pll.o clk-ref.o clk-div.o clk-frac.o clk-ssp.o
 
 obj-$(CONFIG_SOC_IMX23) += clk-imx23.o
 obj-$(CONFIG_SOC_IMX28) += clk-imx28.o
diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c
index 844043ad0fe..f00dffb9ad6 100644
--- a/drivers/clk/mxs/clk-imx23.c
+++ b/drivers/clk/mxs/clk-imx23.c
@@ -14,6 +14,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <mach/common.h>
 #include <mach/mx23.h>
 #include "clk.h"
@@ -71,44 +72,6 @@ static void __init clk_misc_init(void)
 	__mxs_setl(30 << BP_FRAC_IOFRAC, FRAC);
 }
 
-static struct clk_lookup uart_lookups[] = {
-	{ .dev_id = "duart", },
-	{ .dev_id = "mxs-auart.0", },
-	{ .dev_id = "mxs-auart.1", },
-	{ .dev_id = "8006c000.serial", },
-	{ .dev_id = "8006e000.serial", },
-	{ .dev_id = "80070000.serial", },
-};
-
-static struct clk_lookup hbus_lookups[] = {
-	{ .dev_id = "imx23-dma-apbh", },
-	{ .dev_id = "80004000.dma-apbh", },
-};
-
-static struct clk_lookup xbus_lookups[] = {
-	{ .dev_id = "duart", .con_id = "apb_pclk"},
-	{ .dev_id = "80070000.serial", .con_id = "apb_pclk"},
-	{ .dev_id = "imx23-dma-apbx", },
-	{ .dev_id = "80024000.dma-apbx", },
-};
-
-static struct clk_lookup ssp_lookups[] = {
-	{ .dev_id = "imx23-mmc.0", },
-	{ .dev_id = "imx23-mmc.1", },
-	{ .dev_id = "80010000.ssp", },
-	{ .dev_id = "80034000.ssp", },
-};
-
-static struct clk_lookup lcdif_lookups[] = {
-	{ .dev_id = "imx23-fb", },
-	{ .dev_id = "80030000.lcdif", },
-};
-
-static struct clk_lookup gpmi_lookups[] = {
-	{ .dev_id = "imx23-gpmi-nand", },
-	{ .dev_id = "8000c000.gpmi-nand", },
-};
-
 static const char *sel_pll[]  __initconst = { "pll", "ref_xtal", };
 static const char *sel_cpu[]  __initconst = { "ref_cpu", "ref_xtal", };
 static const char *sel_pix[]  __initconst = { "ref_pix", "ref_xtal", };
@@ -127,6 +90,7 @@ enum imx23_clk {
 };
 
 static struct clk *clks[clk_max];
+static struct clk_onecell_data clk_data;
 
 static enum imx23_clk clks_init_on[] __initdata = {
 	cpu, hbus, xbus, emi, uart,
@@ -134,6 +98,7 @@ static enum imx23_clk clks_init_on[] __initdata = {
 
 int __init mx23_clocks_init(void)
 {
+	struct device_node *np;
 	int i;
 
 	clk_misc_init();
@@ -188,19 +153,19 @@ int __init mx23_clocks_init(void)
 			return PTR_ERR(clks[i]);
 		}
 
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx23-clkctrl");
+	if (np) {
+		clk_data.clks = clks;
+		clk_data.clk_num = ARRAY_SIZE(clks);
+		of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+	}
+
 	clk_register_clkdev(clks[clk32k], NULL, "timrot");
-	clk_register_clkdev(clks[pwm], NULL, "80064000.pwm");
-	clk_register_clkdevs(clks[hbus], hbus_lookups, ARRAY_SIZE(hbus_lookups));
-	clk_register_clkdevs(clks[xbus], xbus_lookups, ARRAY_SIZE(xbus_lookups));
-	clk_register_clkdevs(clks[uart], uart_lookups, ARRAY_SIZE(uart_lookups));
-	clk_register_clkdevs(clks[ssp], ssp_lookups, ARRAY_SIZE(ssp_lookups));
-	clk_register_clkdevs(clks[gpmi], gpmi_lookups, ARRAY_SIZE(gpmi_lookups));
-	clk_register_clkdevs(clks[lcdif], lcdif_lookups, ARRAY_SIZE(lcdif_lookups));
 
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
 
-	mxs_timer_init(MX23_INT_TIMER0);
+	mxs_timer_init();
 
 	return 0;
 }
diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
index e3aab67b3eb..42978f1b4bd 100644
--- a/drivers/clk/mxs/clk-imx28.c
+++ b/drivers/clk/mxs/clk-imx28.c
@@ -14,6 +14,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <mach/common.h>
 #include <mach/mx28.h>
 #include "clk.h"
@@ -120,90 +121,6 @@ static void __init clk_misc_init(void)
 	writel_relaxed(val, FRAC0);
 }
 
-static struct clk_lookup uart_lookups[] = {
-	{ .dev_id = "duart", },
-	{ .dev_id = "mxs-auart.0", },
-	{ .dev_id = "mxs-auart.1", },
-	{ .dev_id = "mxs-auart.2", },
-	{ .dev_id = "mxs-auart.3", },
-	{ .dev_id = "mxs-auart.4", },
-	{ .dev_id = "8006a000.serial", },
-	{ .dev_id = "8006c000.serial", },
-	{ .dev_id = "8006e000.serial", },
-	{ .dev_id = "80070000.serial", },
-	{ .dev_id = "80072000.serial", },
-	{ .dev_id = "80074000.serial", },
-};
-
-static struct clk_lookup hbus_lookups[] = {
-	{ .dev_id = "imx28-dma-apbh", },
-	{ .dev_id = "80004000.dma-apbh", },
-};
-
-static struct clk_lookup xbus_lookups[] = {
-	{ .dev_id = "duart", .con_id = "apb_pclk"},
-	{ .dev_id = "80074000.serial", .con_id = "apb_pclk"},
-	{ .dev_id = "imx28-dma-apbx", },
-	{ .dev_id = "80024000.dma-apbx", },
-};
-
-static struct clk_lookup ssp0_lookups[] = {
-	{ .dev_id = "imx28-mmc.0", },
-	{ .dev_id = "80010000.ssp", },
-};
-
-static struct clk_lookup ssp1_lookups[] = {
-	{ .dev_id = "imx28-mmc.1", },
-	{ .dev_id = "80012000.ssp", },
-};
-
-static struct clk_lookup ssp2_lookups[] = {
-	{ .dev_id = "imx28-mmc.2", },
-	{ .dev_id = "80014000.ssp", },
-};
-
-static struct clk_lookup ssp3_lookups[] = {
-	{ .dev_id = "imx28-mmc.3", },
-	{ .dev_id = "80016000.ssp", },
-};
-
-static struct clk_lookup lcdif_lookups[] = {
-	{ .dev_id = "imx28-fb", },
-	{ .dev_id = "80030000.lcdif", },
-};
-
-static struct clk_lookup gpmi_lookups[] = {
-	{ .dev_id = "imx28-gpmi-nand", },
-	{ .dev_id = "8000c000.gpmi-nand", },
-};
-
-static struct clk_lookup fec_lookups[] = {
-	{ .dev_id = "imx28-fec.0", },
-	{ .dev_id = "imx28-fec.1", },
-	{ .dev_id = "800f0000.ethernet", },
-	{ .dev_id = "800f4000.ethernet", },
-};
-
-static struct clk_lookup can0_lookups[] = {
-	{ .dev_id = "flexcan.0", },
-	{ .dev_id = "80032000.can", },
-};
-
-static struct clk_lookup can1_lookups[] = {
-	{ .dev_id = "flexcan.1", },
-	{ .dev_id = "80034000.can", },
-};
-
-static struct clk_lookup saif0_lookups[] = {
-	{ .dev_id = "mxs-saif.0", },
-	{ .dev_id = "80042000.saif", },
-};
-
-static struct clk_lookup saif1_lookups[] = {
-	{ .dev_id = "mxs-saif.1", },
-	{ .dev_id = "80046000.saif", },
-};
-
 static const char *sel_cpu[]  __initconst = { "ref_cpu", "ref_xtal", };
 static const char *sel_io0[]  __initconst = { "ref_io0", "ref_xtal", };
 static const char *sel_io1[]  __initconst = { "ref_io1", "ref_xtal", };
@@ -228,6 +145,7 @@ enum imx28_clk {
 };
 
 static struct clk *clks[clk_max];
+static struct clk_onecell_data clk_data;
 
 static enum imx28_clk clks_init_on[] __initdata = {
 	cpu, hbus, xbus, emi, uart,
@@ -235,6 +153,7 @@ static enum imx28_clk clks_init_on[] __initdata = {
 
 int __init mx28_clocks_init(void)
 {
+	struct device_node *np;
 	int i;
 
 	clk_misc_init();
@@ -312,32 +231,20 @@ int __init mx28_clocks_init(void)
 			return PTR_ERR(clks[i]);
 		}
 
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx28-clkctrl");
+	if (np) {
+		clk_data.clks = clks;
+		clk_data.clk_num = ARRAY_SIZE(clks);
+		of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+	}
+
 	clk_register_clkdev(clks[clk32k], NULL, "timrot");
 	clk_register_clkdev(clks[enet_out], NULL, "enet_out");
-	clk_register_clkdev(clks[pwm], NULL, "80064000.pwm");
-	clk_register_clkdevs(clks[hbus], hbus_lookups, ARRAY_SIZE(hbus_lookups));
-	clk_register_clkdevs(clks[xbus], xbus_lookups, ARRAY_SIZE(xbus_lookups));
-	clk_register_clkdevs(clks[uart], uart_lookups, ARRAY_SIZE(uart_lookups));
-	clk_register_clkdevs(clks[ssp0], ssp0_lookups, ARRAY_SIZE(ssp0_lookups));
-	clk_register_clkdevs(clks[ssp1], ssp1_lookups, ARRAY_SIZE(ssp1_lookups));
-	clk_register_clkdevs(clks[ssp2], ssp2_lookups, ARRAY_SIZE(ssp2_lookups));
-	clk_register_clkdevs(clks[ssp3], ssp3_lookups, ARRAY_SIZE(ssp3_lookups));
-	clk_register_clkdevs(clks[gpmi], gpmi_lookups, ARRAY_SIZE(gpmi_lookups));
-	clk_register_clkdevs(clks[saif0], saif0_lookups, ARRAY_SIZE(saif0_lookups));
-	clk_register_clkdevs(clks[saif1], saif1_lookups, ARRAY_SIZE(saif1_lookups));
-	clk_register_clkdevs(clks[lcdif], lcdif_lookups, ARRAY_SIZE(lcdif_lookups));
-	clk_register_clkdevs(clks[fec], fec_lookups, ARRAY_SIZE(fec_lookups));
-	clk_register_clkdevs(clks[can0], can0_lookups, ARRAY_SIZE(can0_lookups));
-	clk_register_clkdevs(clks[can1], can1_lookups, ARRAY_SIZE(can1_lookups));
-	clk_register_clkdev(clks[usb0_pwr], NULL, "8007c000.usbphy");
-	clk_register_clkdev(clks[usb1_pwr], NULL, "8007e000.usbphy");
-	clk_register_clkdev(clks[usb0], NULL, "80080000.usb");
-	clk_register_clkdev(clks[usb1], NULL, "80090000.usb");
 
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
 
-	mxs_timer_init(MX28_INT_TIMER0);
+	mxs_timer_init();
 
 	return 0;
 }
diff --git a/drivers/clk/mxs/clk-ssp.c b/drivers/clk/mxs/clk-ssp.c
new file mode 100644
index 00000000000..af7bdbf9ebd
--- /dev/null
+++ b/drivers/clk/mxs/clk-ssp.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2012 DENX Software Engineering, GmbH
+ *
+ * Pulled from code:
+ * Portions copyright (C) 2003 Russell King, PXA MMCI Driver
+ * Portions copyright (C) 2004-2005 Pierre Ossman, W83L51xD SD/MMC driver
+ *
+ * Copyright 2008 Embedded Alley Solutions, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/spi/mxs-spi.h>
+
+void mxs_ssp_set_clk_rate(struct mxs_ssp *ssp, unsigned int rate)
+{
+	unsigned int ssp_clk, ssp_sck;
+	u32 clock_divide, clock_rate;
+	u32 val;
+
+	ssp_clk = clk_get_rate(ssp->clk);
+
+	for (clock_divide = 2; clock_divide <= 254; clock_divide += 2) {
+		clock_rate = DIV_ROUND_UP(ssp_clk, rate * clock_divide);
+		clock_rate = (clock_rate > 0) ? clock_rate - 1 : 0;
+		if (clock_rate <= 255)
+			break;
+	}
+
+	if (clock_divide > 254) {
+		dev_err(ssp->dev,
+			"%s: cannot set clock to %d\n", __func__, rate);
+		return;
+	}
+
+	ssp_sck = ssp_clk / clock_divide / (1 + clock_rate);
+
+	val = readl(ssp->base + HW_SSP_TIMING(ssp));
+	val &= ~(BM_SSP_TIMING_CLOCK_DIVIDE | BM_SSP_TIMING_CLOCK_RATE);
+	val |= BF_SSP(clock_divide, TIMING_CLOCK_DIVIDE);
+	val |= BF_SSP(clock_rate, TIMING_CLOCK_RATE);
+	writel(val, ssp->base + HW_SSP_TIMING(ssp));
+
+	ssp->clk_rate = ssp_sck;
+
+	dev_dbg(ssp->dev,
+		"%s: clock_divide %d, clock_rate %d, ssp_clk %d, rate_actual %d, rate_requested %d\n",
+		__func__, clock_divide, clock_rate, ssp_clk, ssp_sck, rate);
+}
+EXPORT_SYMBOL_GPL(mxs_ssp_set_clk_rate);
diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile
new file mode 100644
index 00000000000..858fbfe6628
--- /dev/null
+++ b/drivers/clk/ux500/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for ux500 clocks
+#
+
+# Clock types
+obj-y += clk-prcc.o
+obj-y += clk-prcmu.o
+
+# Clock definitions
+obj-y += u8500_clk.o
+obj-y += u9540_clk.o
+obj-y += u8540_clk.o
diff --git a/drivers/clk/ux500/clk-prcc.c b/drivers/clk/ux500/clk-prcc.c
new file mode 100644
index 00000000000..7eee7f76835
--- /dev/null
+++ b/drivers/clk/ux500/clk-prcc.c
@@ -0,0 +1,164 @@
+/*
+ * PRCC clock implementation for ux500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clk-private.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/types.h>
+#include <mach/hardware.h>
+
+#include "clk.h"
+
+#define PRCC_PCKEN			0x000
+#define PRCC_PCKDIS			0x004
+#define PRCC_KCKEN			0x008
+#define PRCC_KCKDIS			0x00C
+#define PRCC_PCKSR			0x010
+#define PRCC_KCKSR			0x014
+
+#define to_clk_prcc(_hw) container_of(_hw, struct clk_prcc, hw)
+
+struct clk_prcc {
+	struct clk_hw hw;
+	void __iomem *base;
+	u32 cg_sel;
+	int is_enabled;
+};
+
+/* PRCC clock operations. */
+
+static int clk_prcc_pclk_enable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_PCKEN));
+	while (!(readl(clk->base + PRCC_PCKSR) & clk->cg_sel))
+		cpu_relax();
+
+	clk->is_enabled = 1;
+	return 0;
+}
+
+static void clk_prcc_pclk_disable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_PCKDIS));
+	clk->is_enabled = 0;
+}
+
+static int clk_prcc_kclk_enable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_KCKEN));
+	while (!(readl(clk->base + PRCC_KCKSR) & clk->cg_sel))
+		cpu_relax();
+
+	clk->is_enabled = 1;
+	return 0;
+}
+
+static void clk_prcc_kclk_disable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_KCKDIS));
+	clk->is_enabled = 0;
+}
+
+static int clk_prcc_is_enabled(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+	return clk->is_enabled;
+}
+
+static struct clk_ops clk_prcc_pclk_ops = {
+	.enable = clk_prcc_pclk_enable,
+	.disable = clk_prcc_pclk_disable,
+	.is_enabled = clk_prcc_is_enabled,
+};
+
+static struct clk_ops clk_prcc_kclk_ops = {
+	.enable = clk_prcc_kclk_enable,
+	.disable = clk_prcc_kclk_disable,
+	.is_enabled = clk_prcc_is_enabled,
+};
+
+static struct clk *clk_reg_prcc(const char *name,
+				const char *parent_name,
+				resource_size_t phy_base,
+				u32 cg_sel,
+				unsigned long flags,
+				struct clk_ops *clk_prcc_ops)
+{
+	struct clk_prcc *clk;
+	struct clk_init_data clk_prcc_init;
+	struct clk *clk_reg;
+
+	if (!name) {
+		pr_err("clk_prcc: %s invalid arguments passed\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk = kzalloc(sizeof(struct clk_prcc), GFP_KERNEL);
+	if (!clk) {
+		pr_err("clk_prcc: %s could not allocate clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	clk->base = ioremap(phy_base, SZ_4K);
+	if (!clk->base)
+		goto free_clk;
+
+	clk->cg_sel = cg_sel;
+	clk->is_enabled = 1;
+
+	clk_prcc_init.name = name;
+	clk_prcc_init.ops = clk_prcc_ops;
+	clk_prcc_init.flags = flags;
+	clk_prcc_init.parent_names = (parent_name ? &parent_name : NULL);
+	clk_prcc_init.num_parents = (parent_name ? 1 : 0);
+	clk->hw.init = &clk_prcc_init;
+
+	clk_reg = clk_register(NULL, &clk->hw);
+	if (IS_ERR_OR_NULL(clk_reg))
+		goto unmap_clk;
+
+	return clk_reg;
+
+unmap_clk:
+	iounmap(clk->base);
+free_clk:
+	kfree(clk);
+	pr_err("clk_prcc: %s failed to register clk\n", __func__);
+	return ERR_PTR(-ENOMEM);
+}
+
+struct clk *clk_reg_prcc_pclk(const char *name,
+			      const char *parent_name,
+			      resource_size_t phy_base,
+			      u32 cg_sel,
+			      unsigned long flags)
+{
+	return clk_reg_prcc(name, parent_name, phy_base, cg_sel, flags,
+			&clk_prcc_pclk_ops);
+}
+
+struct clk *clk_reg_prcc_kclk(const char *name,
+			      const char *parent_name,
+			      resource_size_t phy_base,
+			      u32 cg_sel,
+			      unsigned long flags)
+{
+	return clk_reg_prcc(name, parent_name, phy_base, cg_sel, flags,
+			&clk_prcc_kclk_ops);
+}
diff --git a/drivers/clk/ux500/clk-prcmu.c b/drivers/clk/ux500/clk-prcmu.c
new file mode 100644
index 00000000000..930cdfeb47a
--- /dev/null
+++ b/drivers/clk/ux500/clk-prcmu.c
@@ -0,0 +1,252 @@
+/*
+ * PRCMU clock implementation for ux500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clk-private.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include "clk.h"
+
+#define to_clk_prcmu(_hw) container_of(_hw, struct clk_prcmu, hw)
+
+struct clk_prcmu {
+	struct clk_hw hw;
+	u8 cg_sel;
+	int is_enabled;
+};
+
+/* PRCMU clock operations. */
+
+static int clk_prcmu_prepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return prcmu_request_clock(clk->cg_sel, true);
+}
+
+static void clk_prcmu_unprepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	if (prcmu_request_clock(clk->cg_sel, false))
+		pr_err("clk_prcmu: %s failed to disable %s.\n", __func__,
+			hw->init->name);
+}
+
+static int clk_prcmu_enable(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	clk->is_enabled = 1;
+	return 0;
+}
+
+static void clk_prcmu_disable(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	clk->is_enabled = 0;
+}
+
+static int clk_prcmu_is_enabled(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return clk->is_enabled;
+}
+
+static unsigned long clk_prcmu_recalc_rate(struct clk_hw *hw,
+					   unsigned long parent_rate)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return prcmu_clock_rate(clk->cg_sel);
+}
+
+static long clk_prcmu_round_rate(struct clk_hw *hw, unsigned long rate,
+				 unsigned long *parent_rate)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return prcmu_round_clock_rate(clk->cg_sel, rate);
+}
+
+static int clk_prcmu_set_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long parent_rate)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return prcmu_set_clock_rate(clk->cg_sel, rate);
+}
+
+static int request_ape_opp100(bool enable)
+{
+	static int reqs;
+	int err = 0;
+
+	if (enable) {
+		if (!reqs)
+			err = prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP,
+							"clock", 100);
+		if (!err)
+			reqs++;
+	} else {
+		reqs--;
+		if (!reqs)
+			prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP,
+						"clock");
+	}
+	return err;
+}
+
+static int clk_prcmu_opp_prepare(struct clk_hw *hw)
+{
+	int err;
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	err = request_ape_opp100(true);
+	if (err) {
+		pr_err("clk_prcmu: %s failed to request APE OPP100 for %s.\n",
+			__func__, hw->init->name);
+		return err;
+	}
+
+	err = prcmu_request_clock(clk->cg_sel, true);
+	if (err)
+		request_ape_opp100(false);
+
+	return err;
+}
+
+static void clk_prcmu_opp_unprepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	if (prcmu_request_clock(clk->cg_sel, false))
+		goto out_error;
+	if (request_ape_opp100(false))
+		goto out_error;
+	return;
+
+out_error:
+	pr_err("clk_prcmu: %s failed to disable %s.\n", __func__,
+		hw->init->name);
+}
+
+static struct clk_ops clk_prcmu_scalable_ops = {
+	.prepare = clk_prcmu_prepare,
+	.unprepare = clk_prcmu_unprepare,
+	.enable = clk_prcmu_enable,
+	.disable = clk_prcmu_disable,
+	.is_enabled = clk_prcmu_is_enabled,
+	.recalc_rate = clk_prcmu_recalc_rate,
+	.round_rate = clk_prcmu_round_rate,
+	.set_rate = clk_prcmu_set_rate,
+};
+
+static struct clk_ops clk_prcmu_gate_ops = {
+	.prepare = clk_prcmu_prepare,
+	.unprepare = clk_prcmu_unprepare,
+	.enable = clk_prcmu_enable,
+	.disable = clk_prcmu_disable,
+	.is_enabled = clk_prcmu_is_enabled,
+	.recalc_rate = clk_prcmu_recalc_rate,
+};
+
+static struct clk_ops clk_prcmu_rate_ops = {
+	.is_enabled = clk_prcmu_is_enabled,
+	.recalc_rate = clk_prcmu_recalc_rate,
+};
+
+static struct clk_ops clk_prcmu_opp_gate_ops = {
+	.prepare = clk_prcmu_opp_prepare,
+	.unprepare = clk_prcmu_opp_unprepare,
+	.enable = clk_prcmu_enable,
+	.disable = clk_prcmu_disable,
+	.is_enabled = clk_prcmu_is_enabled,
+	.recalc_rate = clk_prcmu_recalc_rate,
+};
+
+static struct clk *clk_reg_prcmu(const char *name,
+				 const char *parent_name,
+				 u8 cg_sel,
+				 unsigned long rate,
+				 unsigned long flags,
+				 struct clk_ops *clk_prcmu_ops)
+{
+	struct clk_prcmu *clk;
+	struct clk_init_data clk_prcmu_init;
+	struct clk *clk_reg;
+
+	if (!name) {
+		pr_err("clk_prcmu: %s invalid arguments passed\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk = kzalloc(sizeof(struct clk_prcmu), GFP_KERNEL);
+	if (!clk) {
+		pr_err("clk_prcmu: %s could not allocate clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	clk->cg_sel = cg_sel;
+	clk->is_enabled = 1;
+	/* "rate" can be used for changing the initial frequency */
+	if (rate)
+		prcmu_set_clock_rate(cg_sel, rate);
+
+	clk_prcmu_init.name = name;
+	clk_prcmu_init.ops = clk_prcmu_ops;
+	clk_prcmu_init.flags = flags;
+	clk_prcmu_init.parent_names = (parent_name ? &parent_name : NULL);
+	clk_prcmu_init.num_parents = (parent_name ? 1 : 0);
+	clk->hw.init = &clk_prcmu_init;
+
+	clk_reg = clk_register(NULL, &clk->hw);
+	if (IS_ERR_OR_NULL(clk_reg))
+		goto free_clk;
+
+	return clk_reg;
+
+free_clk:
+	kfree(clk);
+	pr_err("clk_prcmu: %s failed to register clk\n", __func__);
+	return ERR_PTR(-ENOMEM);
+}
+
+struct clk *clk_reg_prcmu_scalable(const char *name,
+				   const char *parent_name,
+				   u8 cg_sel,
+				   unsigned long rate,
+				   unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, rate, flags,
+			&clk_prcmu_scalable_ops);
+}
+
+struct clk *clk_reg_prcmu_gate(const char *name,
+			       const char *parent_name,
+			       u8 cg_sel,
+			       unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, 0, flags,
+			&clk_prcmu_gate_ops);
+}
+
+struct clk *clk_reg_prcmu_rate(const char *name,
+			       const char *parent_name,
+			       u8 cg_sel,
+			       unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, 0, flags,
+			&clk_prcmu_rate_ops);
+}
+
+struct clk *clk_reg_prcmu_opp_gate(const char *name,
+				   const char *parent_name,
+				   u8 cg_sel,
+				   unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, 0, flags,
+			&clk_prcmu_opp_gate_ops);
+}
diff --git a/drivers/clk/ux500/clk.h b/drivers/clk/ux500/clk.h
new file mode 100644
index 00000000000..836d7d16751
--- /dev/null
+++ b/drivers/clk/ux500/clk.h
@@ -0,0 +1,48 @@
+/*
+ * Clocks for ux500 platforms
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef __UX500_CLK_H
+#define __UX500_CLK_H
+
+#include <linux/clk.h>
+
+struct clk *clk_reg_prcc_pclk(const char *name,
+			      const char *parent_name,
+			      unsigned int phy_base,
+			      u32 cg_sel,
+			      unsigned long flags);
+
+struct clk *clk_reg_prcc_kclk(const char *name,
+			      const char *parent_name,
+			      unsigned int phy_base,
+			      u32 cg_sel,
+			      unsigned long flags);
+
+struct clk *clk_reg_prcmu_scalable(const char *name,
+				   const char *parent_name,
+				   u8 cg_sel,
+				   unsigned long rate,
+				   unsigned long flags);
+
+struct clk *clk_reg_prcmu_gate(const char *name,
+			       const char *parent_name,
+			       u8 cg_sel,
+			       unsigned long flags);
+
+struct clk *clk_reg_prcmu_rate(const char *name,
+			       const char *parent_name,
+			       u8 cg_sel,
+			       unsigned long flags);
+
+struct clk *clk_reg_prcmu_opp_gate(const char *name,
+				   const char *parent_name,
+				   u8 cg_sel,
+				   unsigned long flags);
+
+#endif /* __UX500_CLK_H */
diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c
new file mode 100644
index 00000000000..ca4a25ed844
--- /dev/null
+++ b/drivers/clk/ux500/u8500_clk.c
@@ -0,0 +1,477 @@
+/*
+ * Clock definitions for u8500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/platform_data/clk-ux500.h>
+
+#include "clk.h"
+
+void u8500_clk_init(void)
+{
+	struct prcmu_fw_version *fw_version;
+	const char *sgaclk_parent = NULL;
+	struct clk *clk;
+
+	/* Clock sources */
+	clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	clk_register_clkdev(clk, "soc0_pll", NULL);
+
+	clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	clk_register_clkdev(clk, "soc1_pll", NULL);
+
+	clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	clk_register_clkdev(clk, "ddr_pll", NULL);
+
+	/* FIXME: Add sys, ulp and int clocks here. */
+
+	clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED,
+				32768);
+	clk_register_clkdev(clk, "clk32k", NULL);
+	clk_register_clkdev(clk, NULL, "rtc-pl031");
+
+	/* PRCMU clocks */
+	fw_version = prcmu_get_fw_version();
+	if (fw_version != NULL) {
+		switch (fw_version->project) {
+		case PRCMU_FW_PROJECT_U8500_C2:
+		case PRCMU_FW_PROJECT_U8520:
+		case PRCMU_FW_PROJECT_U8420:
+			sgaclk_parent = "soc0_pll";
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (sgaclk_parent)
+		clk = clk_reg_prcmu_gate("sgclk", sgaclk_parent,
+					PRCMU_SGACLK, 0);
+	else
+		clk = clk_reg_prcmu_gate("sgclk", NULL,
+					PRCMU_SGACLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "mali");
+
+	clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "UART");
+
+	clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "MSP02");
+
+	clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "MSP1");
+
+	clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "I2C");
+
+	clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "slim");
+
+	clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "PERIPH1");
+
+	clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "PERIPH2");
+
+	clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "PERIPH3");
+
+	clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "PERIPH5");
+
+	clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "PERIPH6");
+
+	clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "PERIPH7");
+
+	clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "lcd");
+	clk_register_clkdev(clk, "lcd", "mcde");
+
+	clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "bml");
+
+	clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "hdmi");
+	clk_register_clkdev(clk, "hdmi", "mcde");
+
+	clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "apeat");
+
+	clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK,
+				CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "apetrace");
+
+	clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "mcde");
+	clk_register_clkdev(clk, "mcde", "mcde");
+	clk_register_clkdev(clk, "dsisys", "dsilink.0");
+	clk_register_clkdev(clk, "dsisys", "dsilink.1");
+	clk_register_clkdev(clk, "dsisys", "dsilink.2");
+
+	clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK,
+				CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "ipi2");
+
+	clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK,
+				CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "dsialt");
+
+	clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "dma40.0");
+
+	clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "b2r2");
+	clk_register_clkdev(clk, NULL, "b2r2_core");
+	clk_register_clkdev(clk, NULL, "U8500-B2R2.0");
+
+	clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "tv");
+	clk_register_clkdev(clk, "tv", "mcde");
+
+	clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "SSP");
+
+	clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "rngclk");
+
+	clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "uicc");
+
+	/*
+	 * FIXME: The MTU clocks might need some kind of "parent muxed join"
+	 * and these have no K-clocks. For now, we ignore the missing
+	 * connection to the corresponding P-clocks, p6_mtu0_clk and
+	 * p6_mtu1_clk. Instead timclk is used which is the valid parent.
+	 */
+	clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "mtu0");
+	clk_register_clkdev(clk, NULL, "mtu1");
+
+	clk = clk_reg_prcmu_gate("sdmmcclk", NULL, PRCMU_SDMMCCLK, CLK_IS_ROOT);
+	clk_register_clkdev(clk, NULL, "sdmmc");
+
+
+	clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
+				PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, "dsihs2", "mcde");
+	clk_register_clkdev(clk, "dsihs2", "dsilink.2");
+
+
+	clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
+				PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, "dsihs0", "mcde");
+	clk_register_clkdev(clk, "dsihs0", "dsilink.0");
+
+	clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
+				PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, "dsihs1", "mcde");
+	clk_register_clkdev(clk, "dsihs1", "dsilink.1");
+
+	clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
+				PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, "dsilp0", "dsilink.0");
+	clk_register_clkdev(clk, "dsilp0", "mcde");
+
+	clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
+				PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, "dsilp1", "dsilink.1");
+	clk_register_clkdev(clk, "dsilp1", "mcde");
+
+	clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
+				PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, "dsilp2", "dsilink.2");
+	clk_register_clkdev(clk, "dsilp2", "mcde");
+
+	clk = clk_reg_prcmu_rate("smp_twd", NULL, PRCMU_ARMSS,
+				CLK_IS_ROOT|CLK_GET_RATE_NOCACHE|
+				CLK_IGNORE_UNUSED);
+	clk_register_clkdev(clk, NULL, "smp_twd");
+
+	/*
+	 * FIXME: Add special handled PRCMU clocks here:
+	 * 1. clk_arm, use PRCMU_ARMCLK.
+	 * 2. clkout0yuv, use PRCMU as parent + need regulator + pinctrl.
+	 * 3. ab9540_clkout1yuv, see clkout0yuv
+	 */
+
+	/* PRCC P-clocks */
+	clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", U8500_CLKRST1_BASE,
+				BIT(0), 0);
+	clk_register_clkdev(clk, "apb_pclk", "uart0");
+
+	clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", U8500_CLKRST1_BASE,
+				BIT(1), 0);
+	clk_register_clkdev(clk, "apb_pclk", "uart1");
+
+	clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", U8500_CLKRST1_BASE,
+				BIT(2), 0);
+	clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", U8500_CLKRST1_BASE,
+				BIT(3), 0);
+	clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", U8500_CLKRST1_BASE,
+				BIT(4), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", U8500_CLKRST1_BASE,
+				BIT(5), 0);
+	clk_register_clkdev(clk, "apb_pclk", "sdi0");
+
+	clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", U8500_CLKRST1_BASE,
+				BIT(6), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", U8500_CLKRST1_BASE,
+				BIT(7), 0);
+	clk_register_clkdev(clk, NULL, "spi3");
+
+	clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", U8500_CLKRST1_BASE,
+				BIT(8), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", U8500_CLKRST1_BASE,
+				BIT(9), 0);
+	clk_register_clkdev(clk, NULL, "gpio.0");
+	clk_register_clkdev(clk, NULL, "gpio.1");
+	clk_register_clkdev(clk, NULL, "gpioblock0");
+
+	clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", U8500_CLKRST1_BASE,
+				BIT(10), 0);
+	clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", U8500_CLKRST1_BASE,
+				BIT(11), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", U8500_CLKRST2_BASE,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", U8500_CLKRST2_BASE,
+				BIT(1), 0);
+	clk_register_clkdev(clk, NULL, "spi2");
+
+	clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", U8500_CLKRST2_BASE,
+				BIT(2), 0);
+	clk_register_clkdev(clk, NULL, "spi1");
+
+	clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", U8500_CLKRST2_BASE,
+				BIT(3), 0);
+	clk_register_clkdev(clk, NULL, "pwl");
+
+	clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", U8500_CLKRST2_BASE,
+				BIT(4), 0);
+	clk_register_clkdev(clk, "apb_pclk", "sdi4");
+
+	clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", U8500_CLKRST2_BASE,
+				BIT(5), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", U8500_CLKRST2_BASE,
+				BIT(6), 0);
+	clk_register_clkdev(clk, "apb_pclk", "sdi1");
+
+
+	clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", U8500_CLKRST2_BASE,
+				BIT(7), 0);
+	clk_register_clkdev(clk, "apb_pclk", "sdi3");
+
+	clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", U8500_CLKRST2_BASE,
+				BIT(8), 0);
+	clk_register_clkdev(clk, NULL, "spi0");
+
+	clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", U8500_CLKRST2_BASE,
+				BIT(9), 0);
+	clk_register_clkdev(clk, "hsir_hclk", "ste_hsi.0");
+
+	clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", U8500_CLKRST2_BASE,
+				BIT(10), 0);
+	clk_register_clkdev(clk, "hsit_hclk", "ste_hsi.0");
+
+	clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", U8500_CLKRST2_BASE,
+				BIT(11), 0);
+	clk_register_clkdev(clk, NULL, "gpio.6");
+	clk_register_clkdev(clk, NULL, "gpio.7");
+	clk_register_clkdev(clk, NULL, "gpioblock1");
+
+	clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", U8500_CLKRST2_BASE,
+				BIT(11), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", U8500_CLKRST3_BASE,
+				BIT(0), 0);
+	clk_register_clkdev(clk, NULL, "fsmc");
+
+	clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", U8500_CLKRST3_BASE,
+				BIT(1), 0);
+	clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", U8500_CLKRST3_BASE,
+				BIT(2), 0);
+	clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", U8500_CLKRST3_BASE,
+				BIT(3), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", U8500_CLKRST3_BASE,
+				BIT(4), 0);
+	clk_register_clkdev(clk, "apb_pclk", "sdi2");
+
+	clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", U8500_CLKRST3_BASE,
+				BIT(5), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", U8500_CLKRST3_BASE,
+				BIT(6), 0);
+	clk_register_clkdev(clk, "apb_pclk", "uart2");
+
+	clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", U8500_CLKRST3_BASE,
+				BIT(7), 0);
+	clk_register_clkdev(clk, "apb_pclk", "sdi5");
+
+	clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", U8500_CLKRST3_BASE,
+				BIT(8), 0);
+	clk_register_clkdev(clk, NULL, "gpio.2");
+	clk_register_clkdev(clk, NULL, "gpio.3");
+	clk_register_clkdev(clk, NULL, "gpio.4");
+	clk_register_clkdev(clk, NULL, "gpio.5");
+	clk_register_clkdev(clk, NULL, "gpioblock2");
+
+	clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", U8500_CLKRST5_BASE,
+				BIT(0), 0);
+	clk_register_clkdev(clk, "usb", "musb-ux500.0");
+
+	clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", U8500_CLKRST5_BASE,
+				BIT(1), 0);
+	clk_register_clkdev(clk, NULL, "gpio.8");
+	clk_register_clkdev(clk, NULL, "gpioblock3");
+
+	clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", U8500_CLKRST6_BASE,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", U8500_CLKRST6_BASE,
+				BIT(1), 0);
+	clk_register_clkdev(clk, NULL, "cryp0");
+	clk_register_clkdev(clk, NULL, "cryp1");
+
+	clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", U8500_CLKRST6_BASE,
+				BIT(2), 0);
+	clk_register_clkdev(clk, NULL, "hash0");
+
+	clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", U8500_CLKRST6_BASE,
+				BIT(3), 0);
+	clk_register_clkdev(clk, NULL, "pka");
+
+	clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", U8500_CLKRST6_BASE,
+				BIT(4), 0);
+	clk_register_clkdev(clk, NULL, "hash1");
+
+	clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", U8500_CLKRST6_BASE,
+				BIT(5), 0);
+	clk_register_clkdev(clk, NULL, "cfgreg");
+
+	clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", U8500_CLKRST6_BASE,
+				BIT(6), 0);
+	clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", U8500_CLKRST6_BASE,
+				BIT(7), 0);
+
+	/* PRCC K-clocks
+	 *
+	 * FIXME: Some drivers requires PERPIH[n| to be automatically enabled
+	 * by enabling just the K-clock, even if it is not a valid parent to
+	 * the K-clock. Until drivers get fixed we might need some kind of
+	 * "parent muxed join".
+	 */
+
+	/* Periph1 */
+	clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk",
+			U8500_CLKRST1_BASE, BIT(0), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "uart0");
+
+	clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
+			U8500_CLKRST1_BASE, BIT(1), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "uart1");
+
+	clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
+			U8500_CLKRST1_BASE, BIT(2), CLK_SET_RATE_GATE);
+	clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
+			U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE);
+	clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
+			U8500_CLKRST1_BASE, BIT(4), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
+			U8500_CLKRST1_BASE, BIT(5), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "sdi0");
+
+	clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
+			U8500_CLKRST1_BASE, BIT(6), CLK_SET_RATE_GATE);
+	clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
+			U8500_CLKRST1_BASE, BIT(3), CLK_SET_RATE_GATE);
+	/* FIXME: Redefinition of BIT(3). */
+	clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
+			U8500_CLKRST1_BASE, BIT(9), CLK_SET_RATE_GATE);
+	clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
+			U8500_CLKRST1_BASE, BIT(10), CLK_SET_RATE_GATE);
+
+	/* Periph2 */
+	clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
+			U8500_CLKRST2_BASE, BIT(0), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
+			U8500_CLKRST2_BASE, BIT(2), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "sdi4");
+
+	clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
+			U8500_CLKRST2_BASE, BIT(3), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
+			U8500_CLKRST2_BASE, BIT(4), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "sdi1");
+
+	clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
+			U8500_CLKRST2_BASE, BIT(5), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "sdi3");
+
+	/* Note that rate is received from parent. */
+	clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk",
+			U8500_CLKRST2_BASE, BIT(6),
+			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+	clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk",
+			U8500_CLKRST2_BASE, BIT(7),
+			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+
+	/* Periph3 */
+	clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
+			U8500_CLKRST3_BASE, BIT(1), CLK_SET_RATE_GATE);
+	clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
+			U8500_CLKRST3_BASE, BIT(2), CLK_SET_RATE_GATE);
+	clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
+			U8500_CLKRST3_BASE, BIT(3), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
+			U8500_CLKRST3_BASE, BIT(4), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "sdi2");
+
+	clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
+			U8500_CLKRST3_BASE, BIT(5), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
+			U8500_CLKRST3_BASE, BIT(6), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "uart2");
+
+	clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
+			U8500_CLKRST3_BASE, BIT(7), CLK_SET_RATE_GATE);
+	clk_register_clkdev(clk, NULL, "sdi5");
+
+	/* Periph6 */
+	clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
+			U8500_CLKRST6_BASE, BIT(0), CLK_SET_RATE_GATE);
+
+}
diff --git a/drivers/clk/ux500/u8540_clk.c b/drivers/clk/ux500/u8540_clk.c
new file mode 100644
index 00000000000..10adfd2ead2
--- /dev/null
+++ b/drivers/clk/ux500/u8540_clk.c
@@ -0,0 +1,21 @@
+/*
+ * Clock definitions for u8540 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/platform_data/clk-ux500.h>
+
+#include "clk.h"
+
+void u8540_clk_init(void)
+{
+	/* register clocks here */
+}
diff --git a/drivers/clk/ux500/u9540_clk.c b/drivers/clk/ux500/u9540_clk.c
new file mode 100644
index 00000000000..dbc0191e16c
--- /dev/null
+++ b/drivers/clk/ux500/u9540_clk.c
@@ -0,0 +1,21 @@
+/*
+ * Clock definitions for u9540 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/platform_data/clk-ux500.h>
+
+#include "clk.h"
+
+void u9540_clk_init(void)
+{
+	/* register clocks here */
+}
diff --git a/drivers/clk/versatile/Makefile b/drivers/clk/versatile/Makefile
index 50cf6a2ee69..c0a0f647879 100644
--- a/drivers/clk/versatile/Makefile
+++ b/drivers/clk/versatile/Makefile
@@ -1,3 +1,4 @@
 # Makefile for Versatile-specific clocks
 obj-$(CONFIG_ICST)		+= clk-icst.o
 obj-$(CONFIG_ARCH_INTEGRATOR)	+= clk-integrator.o
+obj-$(CONFIG_ARCH_REALVIEW)	+= clk-realview.o
diff --git a/drivers/clk/versatile/clk-realview.c b/drivers/clk/versatile/clk-realview.c
new file mode 100644
index 00000000000..e21a99cef37
--- /dev/null
+++ b/drivers/clk/versatile/clk-realview.c
@@ -0,0 +1,114 @@
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk-provider.h>
+
+#include <mach/hardware.h>
+#include <mach/platform.h>
+
+#include "clk-icst.h"
+
+/*
+ * Implementation of the ARM RealView clock trees.
+ */
+
+static void __iomem *sys_lock;
+static void __iomem *sys_vcoreg;
+
+/**
+ * realview_oscvco_get() - get ICST OSC settings for the RealView
+ */
+static struct icst_vco realview_oscvco_get(void)
+{
+	u32 val;
+	struct icst_vco vco;
+
+	val = readl(sys_vcoreg);
+	vco.v = val & 0x1ff;
+	vco.r = (val >> 9) & 0x7f;
+	vco.s = (val >> 16) & 03;
+	return vco;
+}
+
+static void realview_oscvco_set(struct icst_vco vco)
+{
+	u32 val;
+
+	val = readl(sys_vcoreg) & ~0x7ffff;
+	val |= vco.v | (vco.r << 9) | (vco.s << 16);
+
+	/* This magic unlocks the CM VCO so it can be controlled */
+	writel(0xa05f, sys_lock);
+	writel(val, sys_vcoreg);
+	/* This locks the CM again */
+	writel(0, sys_lock);
+}
+
+static const struct icst_params realview_oscvco_params = {
+	.ref		= 24000000,
+	.vco_max	= ICST307_VCO_MAX,
+	.vco_min	= ICST307_VCO_MIN,
+	.vd_min		= 4 + 8,
+	.vd_max		= 511 + 8,
+	.rd_min		= 1 + 2,
+	.rd_max		= 127 + 2,
+	.s2div		= icst307_s2div,
+	.idx2s		= icst307_idx2s,
+};
+
+static const struct clk_icst_desc __initdata realview_icst_desc = {
+	.params = &realview_oscvco_params,
+	.getvco = realview_oscvco_get,
+	.setvco = realview_oscvco_set,
+};
+
+/*
+ * realview_clk_init() - set up the RealView clock tree
+ */
+void __init realview_clk_init(void __iomem *sysbase, bool is_pb1176)
+{
+	struct clk *clk;
+
+	sys_lock = sysbase + REALVIEW_SYS_LOCK_OFFSET;
+	if (is_pb1176)
+		sys_vcoreg = sysbase + REALVIEW_SYS_OSC0_OFFSET;
+	else
+		sys_vcoreg = sysbase + REALVIEW_SYS_OSC4_OFFSET;
+
+
+	/* APB clock dummy */
+	clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 0);
+	clk_register_clkdev(clk, "apb_pclk", NULL);
+
+	/* 24 MHz clock */
+	clk = clk_register_fixed_rate(NULL, "clk24mhz", NULL, CLK_IS_ROOT,
+				24000000);
+	clk_register_clkdev(clk, NULL, "dev:uart0");
+	clk_register_clkdev(clk, NULL, "dev:uart1");
+	clk_register_clkdev(clk, NULL, "dev:uart2");
+	clk_register_clkdev(clk, NULL, "fpga:kmi0");
+	clk_register_clkdev(clk, NULL, "fpga:kmi1");
+	clk_register_clkdev(clk, NULL, "fpga:mmc0");
+	clk_register_clkdev(clk, NULL, "dev:ssp0");
+	if (is_pb1176) {
+		/*
+		 * UART3 is on the dev chip in PB1176
+		 * UART4 only exists in PB1176
+		 */
+		clk_register_clkdev(clk, NULL, "dev:uart3");
+		clk_register_clkdev(clk, NULL, "dev:uart4");
+	} else
+		clk_register_clkdev(clk, NULL, "fpga:uart3");
+
+
+	/* 1 MHz clock */
+	clk = clk_register_fixed_rate(NULL, "clk1mhz", NULL, CLK_IS_ROOT,
+				      1000000);
+	clk_register_clkdev(clk, NULL, "sp804");
+
+	/* ICST VCO clock */
+	clk = icst_clk_register(NULL, &realview_icst_desc);
+	clk_register_clkdev(clk, NULL, "dev:clcd");
+	clk_register_clkdev(clk, NULL, "issp:clcd");
+}
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index d53cd0afc20..6a78073c380 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -35,3 +35,8 @@ config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 	default y
 	help
 	  Use the always on PRCMU Timer as sched_clock
+
+config CLKSRC_ARM_GENERIC
+	def_bool y if ARM64
+	help
+	  This option enables support for the ARM generic timer.
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index b65d0c56ab3..603be366f76 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -13,3 +13,6 @@ obj-$(CONFIG_DW_APB_TIMER)	+= dw_apb_timer.o
 obj-$(CONFIG_DW_APB_TIMER_OF)	+= dw_apb_timer_of.o
 obj-$(CONFIG_CLKSRC_DBX500_PRCMU)	+= clksrc-dbx500-prcmu.o
 obj-$(CONFIG_ARMADA_370_XP_TIMER)	+= time-armada-370-xp.o
+obj-$(CONFIG_ARCH_BCM2835)	+= bcm2835_timer.o
+
+obj-$(CONFIG_CLKSRC_ARM_GENERIC)	+= arm_generic.o
diff --git a/drivers/clocksource/arm_generic.c b/drivers/clocksource/arm_generic.c
new file mode 100644
index 00000000000..c4d9f9566c6
--- /dev/null
+++ b/drivers/clocksource/arm_generic.c
@@ -0,0 +1,232 @@
+/*
+ * Generic timers support
+ *
+ * Copyright (C) 2012 ARM Ltd.
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/smp.h>
+#include <linux/cpu.h>
+#include <linux/jiffies.h>
+#include <linux/interrupt.h>
+#include <linux/clockchips.h>
+#include <linux/of_irq.h>
+#include <linux/io.h>
+
+#include <clocksource/arm_generic.h>
+
+#include <asm/arm_generic.h>
+
+static u32 arch_timer_rate;
+static u64 sched_clock_mult __read_mostly;
+static DEFINE_PER_CPU(struct clock_event_device, arch_timer_evt);
+static int arch_timer_ppi;
+
+static irqreturn_t arch_timer_handle_irq(int irq, void *dev_id)
+{
+	struct clock_event_device *evt = dev_id;
+	unsigned long ctrl;
+
+	ctrl = arch_timer_reg_read(ARCH_TIMER_REG_CTRL);
+	if (ctrl & ARCH_TIMER_CTRL_ISTATUS) {
+		ctrl |= ARCH_TIMER_CTRL_IMASK;
+		arch_timer_reg_write(ARCH_TIMER_REG_CTRL, ctrl);
+		evt->event_handler(evt);
+		return IRQ_HANDLED;
+	}
+
+	return IRQ_NONE;
+}
+
+static void arch_timer_stop(void)
+{
+	unsigned long ctrl;
+
+	ctrl = arch_timer_reg_read(ARCH_TIMER_REG_CTRL);
+	ctrl &= ~ARCH_TIMER_CTRL_ENABLE;
+	arch_timer_reg_write(ARCH_TIMER_REG_CTRL, ctrl);
+}
+
+static void arch_timer_set_mode(enum clock_event_mode mode,
+				struct clock_event_device *clk)
+{
+	switch (mode) {
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		arch_timer_stop();
+		break;
+	default:
+		break;
+	}
+}
+
+static int arch_timer_set_next_event(unsigned long evt,
+				     struct clock_event_device *unused)
+{
+	unsigned long ctrl;
+
+	ctrl = arch_timer_reg_read(ARCH_TIMER_REG_CTRL);
+	ctrl |= ARCH_TIMER_CTRL_ENABLE;
+	ctrl &= ~ARCH_TIMER_CTRL_IMASK;
+
+	arch_timer_reg_write(ARCH_TIMER_REG_TVAL, evt);
+	arch_timer_reg_write(ARCH_TIMER_REG_CTRL, ctrl);
+
+	return 0;
+}
+
+static void __cpuinit arch_timer_setup(struct clock_event_device *clk)
+{
+	/* Let's make sure the timer is off before doing anything else */
+	arch_timer_stop();
+
+	clk->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP;
+	clk->name = "arch_sys_timer";
+	clk->rating = 400;
+	clk->set_mode = arch_timer_set_mode;
+	clk->set_next_event = arch_timer_set_next_event;
+	clk->irq = arch_timer_ppi;
+	clk->cpumask = cpumask_of(smp_processor_id());
+
+	clockevents_config_and_register(clk, arch_timer_rate,
+					0xf, 0x7fffffff);
+
+	enable_percpu_irq(clk->irq, 0);
+
+	/* Ensure the physical counter is visible to userspace for the vDSO. */
+	arch_counter_enable_user_access();
+}
+
+static void __init arch_timer_calibrate(void)
+{
+	if (arch_timer_rate == 0) {
+		arch_timer_reg_write(ARCH_TIMER_REG_CTRL, 0);
+		arch_timer_rate = arch_timer_reg_read(ARCH_TIMER_REG_FREQ);
+
+		/* Check the timer frequency. */
+		if (arch_timer_rate == 0)
+			panic("Architected timer frequency is set to zero.\n"
+			      "You must set this in your .dts file\n");
+	}
+
+	/* Cache the sched_clock multiplier to save a divide in the hot path. */
+
+	sched_clock_mult = NSEC_PER_SEC / arch_timer_rate;
+
+	pr_info("Architected local timer running at %u.%02uMHz.\n",
+		 arch_timer_rate / 1000000, (arch_timer_rate / 10000) % 100);
+}
+
+static cycle_t arch_counter_read(struct clocksource *cs)
+{
+	return arch_counter_get_cntpct();
+}
+
+static struct clocksource clocksource_counter = {
+	.name	= "arch_sys_counter",
+	.rating	= 400,
+	.read	= arch_counter_read,
+	.mask	= CLOCKSOURCE_MASK(56),
+	.flags	= (CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_VALID_FOR_HRES),
+};
+
+int read_current_timer(unsigned long *timer_value)
+{
+	*timer_value = arch_counter_get_cntpct();
+	return 0;
+}
+
+unsigned long long notrace sched_clock(void)
+{
+	return arch_counter_get_cntvct() * sched_clock_mult;
+}
+
+static int __cpuinit arch_timer_cpu_notify(struct notifier_block *self,
+					   unsigned long action, void *hcpu)
+{
+	int cpu = (long)hcpu;
+	struct clock_event_device *clk = per_cpu_ptr(&arch_timer_evt, cpu);
+
+	switch(action) {
+	case CPU_STARTING:
+	case CPU_STARTING_FROZEN:
+		arch_timer_setup(clk);
+		break;
+
+	case CPU_DYING:
+	case CPU_DYING_FROZEN:
+		pr_debug("arch_timer_teardown disable IRQ%d cpu #%d\n",
+			 clk->irq, cpu);
+		disable_percpu_irq(clk->irq);
+		arch_timer_set_mode(CLOCK_EVT_MODE_UNUSED, clk);
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block __cpuinitdata arch_timer_cpu_nb = {
+	.notifier_call = arch_timer_cpu_notify,
+};
+
+static const struct of_device_id arch_timer_of_match[] __initconst = {
+	{ .compatible = "arm,armv8-timer" },
+	{},
+};
+
+int __init arm_generic_timer_init(void)
+{
+	struct device_node *np;
+	int err;
+	u32 freq;
+
+	np = of_find_matching_node(NULL, arch_timer_of_match);
+	if (!np) {
+		pr_err("arch_timer: can't find DT node\n");
+		return -ENODEV;
+	}
+
+	/* Try to determine the frequency from the device tree or CNTFRQ */
+	if (!of_property_read_u32(np, "clock-frequency", &freq))
+		arch_timer_rate = freq;
+	arch_timer_calibrate();
+
+	arch_timer_ppi = irq_of_parse_and_map(np, 0);
+	pr_info("arch_timer: found %s irq %d\n", np->name, arch_timer_ppi);
+
+	err = request_percpu_irq(arch_timer_ppi, arch_timer_handle_irq,
+				 np->name, &arch_timer_evt);
+	if (err) {
+		pr_err("arch_timer: can't register interrupt %d (%d)\n",
+		       arch_timer_ppi, err);
+		return err;
+	}
+
+	clocksource_register_hz(&clocksource_counter, arch_timer_rate);
+
+	/* Calibrate the delay loop directly */
+	lpj_fine = arch_timer_rate / HZ;
+
+	/* Immediately configure the timer on the boot CPU */
+	arch_timer_setup(per_cpu_ptr(&arch_timer_evt, smp_processor_id()));
+
+	register_cpu_notifier(&arch_timer_cpu_nb);
+
+	return 0;
+}
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
new file mode 100644
index 00000000000..bc19f12c20c
--- /dev/null
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2012 Simon Arlott
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/bcm2835_timer.h>
+#include <linux/bitops.h>
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include <asm/sched_clock.h>
+#include <asm/irq.h>
+
+#define REG_CONTROL	0x00
+#define REG_COUNTER_LO	0x04
+#define REG_COUNTER_HI	0x08
+#define REG_COMPARE(n)	(0x0c + (n) * 4)
+#define MAX_TIMER	3
+#define DEFAULT_TIMER	3
+
+struct bcm2835_timer {
+	void __iomem *control;
+	void __iomem *compare;
+	int match_mask;
+	struct clock_event_device evt;
+	struct irqaction act;
+};
+
+static void __iomem *system_clock __read_mostly;
+
+static u32 notrace bcm2835_sched_read(void)
+{
+	return readl_relaxed(system_clock);
+}
+
+static void bcm2835_time_set_mode(enum clock_event_mode mode,
+	struct clock_event_device *evt_dev)
+{
+	switch (mode) {
+	case CLOCK_EVT_MODE_ONESHOT:
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_RESUME:
+		break;
+	default:
+		WARN(1, "%s: unhandled event mode %d\n", __func__, mode);
+		break;
+	}
+}
+
+static int bcm2835_time_set_next_event(unsigned long event,
+	struct clock_event_device *evt_dev)
+{
+	struct bcm2835_timer *timer = container_of(evt_dev,
+		struct bcm2835_timer, evt);
+	writel_relaxed(readl_relaxed(system_clock) + event,
+		timer->compare);
+	return 0;
+}
+
+static irqreturn_t bcm2835_time_interrupt(int irq, void *dev_id)
+{
+	struct bcm2835_timer *timer = dev_id;
+	void (*event_handler)(struct clock_event_device *);
+	if (readl_relaxed(timer->control) & timer->match_mask) {
+		writel_relaxed(timer->match_mask, timer->control);
+
+		event_handler = ACCESS_ONCE(timer->evt.event_handler);
+		if (event_handler)
+			event_handler(&timer->evt);
+		return IRQ_HANDLED;
+	} else {
+		return IRQ_NONE;
+	}
+}
+
+static struct of_device_id bcm2835_time_match[] __initconst = {
+	{ .compatible = "brcm,bcm2835-system-timer" },
+	{}
+};
+
+static void __init bcm2835_time_init(void)
+{
+	struct device_node *node;
+	void __iomem *base;
+	u32 freq;
+	int irq;
+	struct bcm2835_timer *timer;
+
+	node = of_find_matching_node(NULL, bcm2835_time_match);
+	if (!node)
+		panic("No bcm2835 timer node");
+
+	base = of_iomap(node, 0);
+	if (!base)
+		panic("Can't remap registers");
+
+	if (of_property_read_u32(node, "clock-frequency", &freq))
+		panic("Can't read clock-frequency");
+
+	system_clock = base + REG_COUNTER_LO;
+	setup_sched_clock(bcm2835_sched_read, 32, freq);
+
+	clocksource_mmio_init(base + REG_COUNTER_LO, node->name,
+		freq, 300, 32, clocksource_mmio_readl_up);
+
+	irq = irq_of_parse_and_map(node, DEFAULT_TIMER);
+	if (irq <= 0)
+		panic("Can't parse IRQ");
+
+	timer = kzalloc(sizeof(*timer), GFP_KERNEL);
+	if (!timer)
+		panic("Can't allocate timer struct\n");
+
+	timer->control = base + REG_CONTROL;
+	timer->compare = base + REG_COMPARE(DEFAULT_TIMER);
+	timer->match_mask = BIT(DEFAULT_TIMER);
+	timer->evt.name = node->name;
+	timer->evt.rating = 300;
+	timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
+	timer->evt.set_mode = bcm2835_time_set_mode;
+	timer->evt.set_next_event = bcm2835_time_set_next_event;
+	timer->evt.cpumask = cpumask_of(0);
+	timer->act.name = node->name;
+	timer->act.flags = IRQF_TIMER | IRQF_SHARED;
+	timer->act.dev_id = timer;
+	timer->act.handler = bcm2835_time_interrupt;
+
+	if (setup_irq(irq, &timer->act))
+		panic("Can't set up timer IRQ\n");
+
+	clockevents_config_and_register(&timer->evt, freq, 0xf, 0xffffffff);
+
+	pr_info("bcm2835: system timer (irq = %d)\n", irq);
+}
+
+struct sys_timer bcm2835_timer = {
+	.init = bcm2835_time_init,
+};
diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index 540795cd076..d9279385304 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -53,7 +53,7 @@ static struct cs5535_mfgpt_timer *cs5535_event_clock;
 #define MFGPT_PERIODIC (MFGPT_HZ / HZ)
 
 /*
- * The MFPGT timers on the CS5536 provide us with suitable timers to use
+ * The MFGPT timers on the CS5536 provide us with suitable timers to use
  * as clock event sources - not as good as a HPET or APIC, but certainly
  * better than the PIT.  This isn't a general purpose MFGPT driver, but
  * a simplified one designed specifically to act as a clock event source.
@@ -144,7 +144,7 @@ static int __init cs5535_mfgpt_init(void)
 
 	timer = cs5535_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
 	if (!timer) {
-		printk(KERN_ERR DRV_NAME ": Could not allocate MFPGT timer\n");
+		printk(KERN_ERR DRV_NAME ": Could not allocate MFGPT timer\n");
 		return -ENODEV;
 	}
 	cs5535_event_clock = timer;
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 98b06baafcc..a5f7829f279 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
 
 struct sh_cmt_priv {
 	void __iomem *mapbase;
@@ -52,6 +53,7 @@ struct sh_cmt_priv {
 	struct clock_event_device ced;
 	struct clocksource cs;
 	unsigned long total_cycles;
+	bool cs_enabled;
 };
 
 static DEFINE_RAW_SPINLOCK(sh_cmt_lock);
@@ -155,6 +157,9 @@ static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
 {
 	int k, ret;
 
+	pm_runtime_get_sync(&p->pdev->dev);
+	dev_pm_syscore_device(&p->pdev->dev, true);
+
 	/* enable clock */
 	ret = clk_enable(p->clk);
 	if (ret) {
@@ -221,6 +226,9 @@ static void sh_cmt_disable(struct sh_cmt_priv *p)
 
 	/* stop clock */
 	clk_disable(p->clk);
+
+	dev_pm_syscore_device(&p->pdev->dev, false);
+	pm_runtime_put(&p->pdev->dev);
 }
 
 /* private flags */
@@ -451,22 +459,42 @@ static int sh_cmt_clocksource_enable(struct clocksource *cs)
 	int ret;
 	struct sh_cmt_priv *p = cs_to_sh_cmt(cs);
 
+	WARN_ON(p->cs_enabled);
+
 	p->total_cycles = 0;
 
 	ret = sh_cmt_start(p, FLAG_CLOCKSOURCE);
-	if (!ret)
+	if (!ret) {
 		__clocksource_updatefreq_hz(cs, p->rate);
+		p->cs_enabled = true;
+	}
 	return ret;
 }
 
 static void sh_cmt_clocksource_disable(struct clocksource *cs)
 {
-	sh_cmt_stop(cs_to_sh_cmt(cs), FLAG_CLOCKSOURCE);
+	struct sh_cmt_priv *p = cs_to_sh_cmt(cs);
+
+	WARN_ON(!p->cs_enabled);
+
+	sh_cmt_stop(p, FLAG_CLOCKSOURCE);
+	p->cs_enabled = false;
+}
+
+static void sh_cmt_clocksource_suspend(struct clocksource *cs)
+{
+	struct sh_cmt_priv *p = cs_to_sh_cmt(cs);
+
+	sh_cmt_stop(p, FLAG_CLOCKSOURCE);
+	pm_genpd_syscore_poweroff(&p->pdev->dev);
 }
 
 static void sh_cmt_clocksource_resume(struct clocksource *cs)
 {
-	sh_cmt_start(cs_to_sh_cmt(cs), FLAG_CLOCKSOURCE);
+	struct sh_cmt_priv *p = cs_to_sh_cmt(cs);
+
+	pm_genpd_syscore_poweron(&p->pdev->dev);
+	sh_cmt_start(p, FLAG_CLOCKSOURCE);
 }
 
 static int sh_cmt_register_clocksource(struct sh_cmt_priv *p,
@@ -479,7 +507,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p,
 	cs->read = sh_cmt_clocksource_read;
 	cs->enable = sh_cmt_clocksource_enable;
 	cs->disable = sh_cmt_clocksource_disable;
-	cs->suspend = sh_cmt_clocksource_disable;
+	cs->suspend = sh_cmt_clocksource_suspend;
 	cs->resume = sh_cmt_clocksource_resume;
 	cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
 	cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
@@ -562,6 +590,16 @@ static int sh_cmt_clock_event_next(unsigned long delta,
 	return 0;
 }
 
+static void sh_cmt_clock_event_suspend(struct clock_event_device *ced)
+{
+	pm_genpd_syscore_poweroff(&ced_to_sh_cmt(ced)->pdev->dev);
+}
+
+static void sh_cmt_clock_event_resume(struct clock_event_device *ced)
+{
+	pm_genpd_syscore_poweron(&ced_to_sh_cmt(ced)->pdev->dev);
+}
+
 static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
 				       char *name, unsigned long rating)
 {
@@ -576,6 +614,8 @@ static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
 	ced->cpumask = cpumask_of(0);
 	ced->set_next_event = sh_cmt_clock_event_next;
 	ced->set_mode = sh_cmt_clock_event_mode;
+	ced->suspend = sh_cmt_clock_event_suspend;
+	ced->resume = sh_cmt_clock_event_resume;
 
 	dev_info(&p->pdev->dev, "used for clock events\n");
 	clockevents_register_device(ced);
@@ -670,6 +710,7 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
 		dev_err(&p->pdev->dev, "registration failed\n");
 		goto err1;
 	}
+	p->cs_enabled = false;
 
 	ret = setup_irq(irq, &p->irqaction);
 	if (ret) {
@@ -688,14 +729,17 @@ err0:
 static int __devinit sh_cmt_probe(struct platform_device *pdev)
 {
 	struct sh_cmt_priv *p = platform_get_drvdata(pdev);
+	struct sh_timer_config *cfg = pdev->dev.platform_data;
 	int ret;
 
-	if (!is_early_platform_device(pdev))
-		pm_genpd_dev_always_on(&pdev->dev, true);
+	if (!is_early_platform_device(pdev)) {
+		pm_runtime_set_active(&pdev->dev);
+		pm_runtime_enable(&pdev->dev);
+	}
 
 	if (p) {
 		dev_info(&pdev->dev, "kept as earlytimer\n");
-		return 0;
+		goto out;
 	}
 
 	p = kmalloc(sizeof(*p), GFP_KERNEL);
@@ -708,8 +752,19 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev)
 	if (ret) {
 		kfree(p);
 		platform_set_drvdata(pdev, NULL);
+		pm_runtime_idle(&pdev->dev);
+		return ret;
 	}
-	return ret;
+	if (is_early_platform_device(pdev))
+		return 0;
+
+ out:
+	if (cfg->clockevent_rating || cfg->clocksource_rating)
+		pm_runtime_irq_safe(&pdev->dev);
+	else
+		pm_runtime_idle(&pdev->dev);
+
+	return 0;
 }
 
 static int __devexit sh_cmt_remove(struct platform_device *pdev)
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index d9b76ca64a6..c5eea858054 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -32,6 +32,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
 
 struct sh_mtu2_priv {
 	void __iomem *mapbase;
@@ -123,6 +124,9 @@ static int sh_mtu2_enable(struct sh_mtu2_priv *p)
 {
 	int ret;
 
+	pm_runtime_get_sync(&p->pdev->dev);
+	dev_pm_syscore_device(&p->pdev->dev, true);
+
 	/* enable clock */
 	ret = clk_enable(p->clk);
 	if (ret) {
@@ -157,6 +161,9 @@ static void sh_mtu2_disable(struct sh_mtu2_priv *p)
 
 	/* stop clock */
 	clk_disable(p->clk);
+
+	dev_pm_syscore_device(&p->pdev->dev, false);
+	pm_runtime_put(&p->pdev->dev);
 }
 
 static irqreturn_t sh_mtu2_interrupt(int irq, void *dev_id)
@@ -208,6 +215,16 @@ static void sh_mtu2_clock_event_mode(enum clock_event_mode mode,
 	}
 }
 
+static void sh_mtu2_clock_event_suspend(struct clock_event_device *ced)
+{
+	pm_genpd_syscore_poweroff(&ced_to_sh_mtu2(ced)->pdev->dev);
+}
+
+static void sh_mtu2_clock_event_resume(struct clock_event_device *ced)
+{
+	pm_genpd_syscore_poweron(&ced_to_sh_mtu2(ced)->pdev->dev);
+}
+
 static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p,
 				       char *name, unsigned long rating)
 {
@@ -221,6 +238,8 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p,
 	ced->rating = rating;
 	ced->cpumask = cpumask_of(0);
 	ced->set_mode = sh_mtu2_clock_event_mode;
+	ced->suspend = sh_mtu2_clock_event_suspend;
+	ced->resume = sh_mtu2_clock_event_resume;
 
 	dev_info(&p->pdev->dev, "used for clock events\n");
 	clockevents_register_device(ced);
@@ -305,14 +324,17 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
 static int __devinit sh_mtu2_probe(struct platform_device *pdev)
 {
 	struct sh_mtu2_priv *p = platform_get_drvdata(pdev);
+	struct sh_timer_config *cfg = pdev->dev.platform_data;
 	int ret;
 
-	if (!is_early_platform_device(pdev))
-		pm_genpd_dev_always_on(&pdev->dev, true);
+	if (!is_early_platform_device(pdev)) {
+		pm_runtime_set_active(&pdev->dev);
+		pm_runtime_enable(&pdev->dev);
+	}
 
 	if (p) {
 		dev_info(&pdev->dev, "kept as earlytimer\n");
-		return 0;
+		goto out;
 	}
 
 	p = kmalloc(sizeof(*p), GFP_KERNEL);
@@ -325,8 +347,19 @@ static int __devinit sh_mtu2_probe(struct platform_device *pdev)
 	if (ret) {
 		kfree(p);
 		platform_set_drvdata(pdev, NULL);
+		pm_runtime_idle(&pdev->dev);
+		return ret;
 	}
-	return ret;
+	if (is_early_platform_device(pdev))
+		return 0;
+
+ out:
+	if (cfg->clockevent_rating)
+		pm_runtime_irq_safe(&pdev->dev);
+	else
+		pm_runtime_idle(&pdev->dev);
+
+	return 0;
 }
 
 static int __devexit sh_mtu2_remove(struct platform_device *pdev)
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index c1b51d49d10..0cc4add8827 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
 
 struct sh_tmu_priv {
 	void __iomem *mapbase;
@@ -43,6 +44,8 @@ struct sh_tmu_priv {
 	unsigned long periodic;
 	struct clock_event_device ced;
 	struct clocksource cs;
+	bool cs_enabled;
+	unsigned int enable_count;
 };
 
 static DEFINE_RAW_SPINLOCK(sh_tmu_lock);
@@ -107,7 +110,7 @@ static void sh_tmu_start_stop_ch(struct sh_tmu_priv *p, int start)
 	raw_spin_unlock_irqrestore(&sh_tmu_lock, flags);
 }
 
-static int sh_tmu_enable(struct sh_tmu_priv *p)
+static int __sh_tmu_enable(struct sh_tmu_priv *p)
 {
 	int ret;
 
@@ -135,7 +138,18 @@ static int sh_tmu_enable(struct sh_tmu_priv *p)
 	return 0;
 }
 
-static void sh_tmu_disable(struct sh_tmu_priv *p)
+static int sh_tmu_enable(struct sh_tmu_priv *p)
+{
+	if (p->enable_count++ > 0)
+		return 0;
+
+	pm_runtime_get_sync(&p->pdev->dev);
+	dev_pm_syscore_device(&p->pdev->dev, true);
+
+	return __sh_tmu_enable(p);
+}
+
+static void __sh_tmu_disable(struct sh_tmu_priv *p)
 {
 	/* disable channel */
 	sh_tmu_start_stop_ch(p, 0);
@@ -147,6 +161,20 @@ static void sh_tmu_disable(struct sh_tmu_priv *p)
 	clk_disable(p->clk);
 }
 
+static void sh_tmu_disable(struct sh_tmu_priv *p)
+{
+	if (WARN_ON(p->enable_count == 0))
+		return;
+
+	if (--p->enable_count > 0)
+		return;
+
+	__sh_tmu_disable(p);
+
+	dev_pm_syscore_device(&p->pdev->dev, false);
+	pm_runtime_put(&p->pdev->dev);
+}
+
 static void sh_tmu_set_next(struct sh_tmu_priv *p, unsigned long delta,
 			    int periodic)
 {
@@ -203,15 +231,53 @@ static int sh_tmu_clocksource_enable(struct clocksource *cs)
 	struct sh_tmu_priv *p = cs_to_sh_tmu(cs);
 	int ret;
 
+	if (WARN_ON(p->cs_enabled))
+		return 0;
+
 	ret = sh_tmu_enable(p);
-	if (!ret)
+	if (!ret) {
 		__clocksource_updatefreq_hz(cs, p->rate);
+		p->cs_enabled = true;
+	}
+
 	return ret;
 }
 
 static void sh_tmu_clocksource_disable(struct clocksource *cs)
 {
-	sh_tmu_disable(cs_to_sh_tmu(cs));
+	struct sh_tmu_priv *p = cs_to_sh_tmu(cs);
+
+	if (WARN_ON(!p->cs_enabled))
+		return;
+
+	sh_tmu_disable(p);
+	p->cs_enabled = false;
+}
+
+static void sh_tmu_clocksource_suspend(struct clocksource *cs)
+{
+	struct sh_tmu_priv *p = cs_to_sh_tmu(cs);
+
+	if (!p->cs_enabled)
+		return;
+
+	if (--p->enable_count == 0) {
+		__sh_tmu_disable(p);
+		pm_genpd_syscore_poweroff(&p->pdev->dev);
+	}
+}
+
+static void sh_tmu_clocksource_resume(struct clocksource *cs)
+{
+	struct sh_tmu_priv *p = cs_to_sh_tmu(cs);
+
+	if (!p->cs_enabled)
+		return;
+
+	if (p->enable_count++ == 0) {
+		pm_genpd_syscore_poweron(&p->pdev->dev);
+		__sh_tmu_enable(p);
+	}
 }
 
 static int sh_tmu_register_clocksource(struct sh_tmu_priv *p,
@@ -224,6 +290,8 @@ static int sh_tmu_register_clocksource(struct sh_tmu_priv *p,
 	cs->read = sh_tmu_clocksource_read;
 	cs->enable = sh_tmu_clocksource_enable;
 	cs->disable = sh_tmu_clocksource_disable;
+	cs->suspend = sh_tmu_clocksource_suspend;
+	cs->resume = sh_tmu_clocksource_resume;
 	cs->mask = CLOCKSOURCE_MASK(32);
 	cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
 
@@ -301,6 +369,16 @@ static int sh_tmu_clock_event_next(unsigned long delta,
 	return 0;
 }
 
+static void sh_tmu_clock_event_suspend(struct clock_event_device *ced)
+{
+	pm_genpd_syscore_poweroff(&ced_to_sh_tmu(ced)->pdev->dev);
+}
+
+static void sh_tmu_clock_event_resume(struct clock_event_device *ced)
+{
+	pm_genpd_syscore_poweron(&ced_to_sh_tmu(ced)->pdev->dev);
+}
+
 static void sh_tmu_register_clockevent(struct sh_tmu_priv *p,
 				       char *name, unsigned long rating)
 {
@@ -316,6 +394,8 @@ static void sh_tmu_register_clockevent(struct sh_tmu_priv *p,
 	ced->cpumask = cpumask_of(0);
 	ced->set_next_event = sh_tmu_clock_event_next;
 	ced->set_mode = sh_tmu_clock_event_mode;
+	ced->suspend = sh_tmu_clock_event_suspend;
+	ced->resume = sh_tmu_clock_event_resume;
 
 	dev_info(&p->pdev->dev, "used for clock events\n");
 
@@ -392,6 +472,8 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 		ret = PTR_ERR(p->clk);
 		goto err1;
 	}
+	p->cs_enabled = false;
+	p->enable_count = 0;
 
 	return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
 			       cfg->clockevent_rating,
@@ -405,14 +487,17 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 static int __devinit sh_tmu_probe(struct platform_device *pdev)
 {
 	struct sh_tmu_priv *p = platform_get_drvdata(pdev);
+	struct sh_timer_config *cfg = pdev->dev.platform_data;
 	int ret;
 
-	if (!is_early_platform_device(pdev))
-		pm_genpd_dev_always_on(&pdev->dev, true);
+	if (!is_early_platform_device(pdev)) {
+		pm_runtime_set_active(&pdev->dev);
+		pm_runtime_enable(&pdev->dev);
+	}
 
 	if (p) {
 		dev_info(&pdev->dev, "kept as earlytimer\n");
-		return 0;
+		goto out;
 	}
 
 	p = kmalloc(sizeof(*p), GFP_KERNEL);
@@ -425,8 +510,19 @@ static int __devinit sh_tmu_probe(struct platform_device *pdev)
 	if (ret) {
 		kfree(p);
 		platform_set_drvdata(pdev, NULL);
+		pm_runtime_idle(&pdev->dev);
+		return ret;
 	}
-	return ret;
+	if (is_early_platform_device(pdev))
+		return 0;
+
+ out:
+	if (cfg->clockevent_rating || cfg->clocksource_rating)
+		pm_runtime_irq_safe(&pdev->dev);
+	else
+		pm_runtime_idle(&pdev->dev);
+
+	return 0;
 }
 
 static int __devexit sh_tmu_remove(struct platform_device *pdev)
diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 3e92b7d3fcd..fce2000eec3 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -30,6 +30,7 @@
 #include <linux/gfp.h>
 #include <linux/ptrace.h>
 #include <linux/atomic.h>
+#include <linux/pid_namespace.h>
 
 #include <asm/unaligned.h>
 
@@ -127,11 +128,11 @@ void proc_id_connector(struct task_struct *task, int which_id)
 	rcu_read_lock();
 	cred = __task_cred(task);
 	if (which_id == PROC_EVENT_UID) {
-		ev->event_data.id.r.ruid = cred->uid;
-		ev->event_data.id.e.euid = cred->euid;
+		ev->event_data.id.r.ruid = from_kuid_munged(&init_user_ns, cred->uid);
+		ev->event_data.id.e.euid = from_kuid_munged(&init_user_ns, cred->euid);
 	} else if (which_id == PROC_EVENT_GID) {
-		ev->event_data.id.r.rgid = cred->gid;
-		ev->event_data.id.e.egid = cred->egid;
+		ev->event_data.id.r.rgid = from_kgid_munged(&init_user_ns, cred->gid);
+		ev->event_data.id.e.egid = from_kgid_munged(&init_user_ns, cred->egid);
 	} else {
 		rcu_read_unlock();
 		return;
@@ -303,6 +304,15 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg,
 	if (msg->len != sizeof(*mc_op))
 		return;
 
+	/* 
+	 * Events are reported with respect to the initial pid
+	 * and user namespaces so ignore requestors from
+	 * other namespaces.
+	 */
+	if ((current_user_ns() != &init_user_ns) ||
+	    (task_active_pid_ns(current) != &init_pid_ns))
+		return;
+
 	mc_op = (enum proc_cn_mcast_op *)msg->data;
 	switch (*mc_op) {
 	case PROC_CN_MCAST_LISTEN:
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 82fa4f0f91d..965b7811e04 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -264,8 +264,7 @@ static int __devinit cn_init(void)
 		.input	= dev->input,
 	};
 
-	dev->nls = netlink_kernel_create(&init_net, NETLINK_CONNECTOR,
-					 THIS_MODULE, &cfg);
+	dev->nls = netlink_kernel_create(&init_net, NETLINK_CONNECTOR, &cfg);
 	if (!dev->nls)
 		return -EIO;
 
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index e24a2a1b666..ea512f47b78 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -179,6 +179,17 @@ config CPU_FREQ_GOV_CONSERVATIVE
 
 	  If in doubt, say N.
 
+config GENERIC_CPUFREQ_CPU0
+	bool "Generic CPU0 cpufreq driver"
+	depends on HAVE_CLK && REGULATOR && PM_OPP && OF
+	select CPU_FREQ_TABLE
+	help
+	  This adds a generic cpufreq driver for CPU0 frequency management.
+	  It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
+	  systems which share clock and voltage across all CPUs.
+
+	  If in doubt, say N.
+
 menu "x86 CPU frequency scaling drivers"
 depends on X86
 source "drivers/cpufreq/Kconfig.x86"
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index 78ff7ee4895..934854ae5eb 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -23,7 +23,8 @@ config X86_ACPI_CPUFREQ
 	help
 	  This driver adds a CPUFreq driver which utilizes the ACPI
 	  Processor Performance States.
-	  This driver also supports Intel Enhanced Speedstep.
+	  This driver also supports Intel Enhanced Speedstep and newer
+	  AMD CPUs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called acpi-cpufreq.
@@ -32,6 +33,18 @@ config X86_ACPI_CPUFREQ
 
 	  If in doubt, say N.
 
+config X86_ACPI_CPUFREQ_CPB
+	default y
+	bool "Legacy cpb sysfs knob support for AMD CPUs"
+	depends on X86_ACPI_CPUFREQ && CPU_SUP_AMD
+	help
+	  The powernow-k8 driver used to provide a sysfs knob called "cpb"
+	  to disable the Core Performance Boosting feature of AMD CPUs. This
+	  file has now been superseeded by the more generic "boost" entry.
+
+	  By enabling this option the acpi_cpufreq driver provides the old
+	  entry in addition to the new boost ones, for compatibility reasons.
+
 config ELAN_CPUFREQ
 	tristate "AMD Elan SC400 and SC410"
 	select CPU_FREQ_TABLE
@@ -95,7 +108,8 @@ config X86_POWERNOW_K8
 	select CPU_FREQ_TABLE
 	depends on ACPI && ACPI_PROCESSOR
 	help
-	  This adds the CPUFreq driver for K8/K10 Opteron/Athlon64 processors.
+	  This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors.
+	  Support for K10 and newer processors is now in acpi-cpufreq.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called powernow-k8.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 9531fc2eda2..1bc90e1306d 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -13,13 +13,15 @@ obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE)	+= cpufreq_conservative.o
 # CPUfreq cross-arch helpers
 obj-$(CONFIG_CPU_FREQ_TABLE)		+= freq_table.o
 
+obj-$(CONFIG_GENERIC_CPUFREQ_CPU0)	+= cpufreq-cpu0.o
+
 ##################################################################################
 # x86 drivers.
 # Link order matters. K8 is preferred to ACPI because of firmware bugs in early
 # K8 systems. ACPI is preferred to all other hardware-specific drivers.
 # speedstep-* is preferred over p4-clockmod.
 
-obj-$(CONFIG_X86_POWERNOW_K8)		+= powernow-k8.o mperf.o
+obj-$(CONFIG_X86_POWERNOW_K8)		+= powernow-k8.o
 obj-$(CONFIG_X86_ACPI_CPUFREQ)		+= acpi-cpufreq.o mperf.o
 obj-$(CONFIG_X86_PCC_CPUFREQ)		+= pcc-cpufreq.o
 obj-$(CONFIG_X86_POWERNOW_K6)		+= powernow-k6.o
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 56c6c6b4eb4..0d048f6a2b2 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -51,13 +51,19 @@ MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski");
 MODULE_DESCRIPTION("ACPI Processor P-States Driver");
 MODULE_LICENSE("GPL");
 
+#define PFX "acpi-cpufreq: "
+
 enum {
 	UNDEFINED_CAPABLE = 0,
 	SYSTEM_INTEL_MSR_CAPABLE,
+	SYSTEM_AMD_MSR_CAPABLE,
 	SYSTEM_IO_CAPABLE,
 };
 
 #define INTEL_MSR_RANGE		(0xffff)
+#define AMD_MSR_RANGE		(0x7)
+
+#define MSR_K7_HWCR_CPB_DIS	(1ULL << 25)
 
 struct acpi_cpufreq_data {
 	struct acpi_processor_performance *acpi_data;
@@ -74,6 +80,116 @@ static struct acpi_processor_performance __percpu *acpi_perf_data;
 static struct cpufreq_driver acpi_cpufreq_driver;
 
 static unsigned int acpi_pstate_strict;
+static bool boost_enabled, boost_supported;
+static struct msr __percpu *msrs;
+
+static bool boost_state(unsigned int cpu)
+{
+	u32 lo, hi;
+	u64 msr;
+
+	switch (boot_cpu_data.x86_vendor) {
+	case X86_VENDOR_INTEL:
+		rdmsr_on_cpu(cpu, MSR_IA32_MISC_ENABLE, &lo, &hi);
+		msr = lo | ((u64)hi << 32);
+		return !(msr & MSR_IA32_MISC_ENABLE_TURBO_DISABLE);
+	case X86_VENDOR_AMD:
+		rdmsr_on_cpu(cpu, MSR_K7_HWCR, &lo, &hi);
+		msr = lo | ((u64)hi << 32);
+		return !(msr & MSR_K7_HWCR_CPB_DIS);
+	}
+	return false;
+}
+
+static void boost_set_msrs(bool enable, const struct cpumask *cpumask)
+{
+	u32 cpu;
+	u32 msr_addr;
+	u64 msr_mask;
+
+	switch (boot_cpu_data.x86_vendor) {
+	case X86_VENDOR_INTEL:
+		msr_addr = MSR_IA32_MISC_ENABLE;
+		msr_mask = MSR_IA32_MISC_ENABLE_TURBO_DISABLE;
+		break;
+	case X86_VENDOR_AMD:
+		msr_addr = MSR_K7_HWCR;
+		msr_mask = MSR_K7_HWCR_CPB_DIS;
+		break;
+	default:
+		return;
+	}
+
+	rdmsr_on_cpus(cpumask, msr_addr, msrs);
+
+	for_each_cpu(cpu, cpumask) {
+		struct msr *reg = per_cpu_ptr(msrs, cpu);
+		if (enable)
+			reg->q &= ~msr_mask;
+		else
+			reg->q |= msr_mask;
+	}
+
+	wrmsr_on_cpus(cpumask, msr_addr, msrs);
+}
+
+static ssize_t _store_boost(const char *buf, size_t count)
+{
+	int ret;
+	unsigned long val = 0;
+
+	if (!boost_supported)
+		return -EINVAL;
+
+	ret = kstrtoul(buf, 10, &val);
+	if (ret || (val > 1))
+		return -EINVAL;
+
+	if ((val && boost_enabled) || (!val && !boost_enabled))
+		return count;
+
+	get_online_cpus();
+
+	boost_set_msrs(val, cpu_online_mask);
+
+	put_online_cpus();
+
+	boost_enabled = val;
+	pr_debug("Core Boosting %sabled.\n", val ? "en" : "dis");
+
+	return count;
+}
+
+static ssize_t store_global_boost(struct kobject *kobj, struct attribute *attr,
+				  const char *buf, size_t count)
+{
+	return _store_boost(buf, count);
+}
+
+static ssize_t show_global_boost(struct kobject *kobj,
+				 struct attribute *attr, char *buf)
+{
+	return sprintf(buf, "%u\n", boost_enabled);
+}
+
+static struct global_attr global_boost = __ATTR(boost, 0644,
+						show_global_boost,
+						store_global_boost);
+
+#ifdef CONFIG_X86_ACPI_CPUFREQ_CPB
+static ssize_t store_cpb(struct cpufreq_policy *policy, const char *buf,
+			 size_t count)
+{
+	return _store_boost(buf, count);
+}
+
+static ssize_t show_cpb(struct cpufreq_policy *policy, char *buf)
+{
+	return sprintf(buf, "%u\n", boost_enabled);
+}
+
+static struct freq_attr cpb = __ATTR(cpb, 0644, show_cpb, store_cpb);
+#endif
 
 static int check_est_cpu(unsigned int cpuid)
 {
@@ -82,6 +198,13 @@ static int check_est_cpu(unsigned int cpuid)
 	return cpu_has(cpu, X86_FEATURE_EST);
 }
 
+static int check_amd_hwpstate_cpu(unsigned int cpuid)
+{
+	struct cpuinfo_x86 *cpu = &cpu_data(cpuid);
+
+	return cpu_has(cpu, X86_FEATURE_HW_PSTATE);
+}
+
 static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data)
 {
 	struct acpi_processor_performance *perf;
@@ -101,7 +224,11 @@ static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
 	int i;
 	struct acpi_processor_performance *perf;
 
-	msr &= INTEL_MSR_RANGE;
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+		msr &= AMD_MSR_RANGE;
+	else
+		msr &= INTEL_MSR_RANGE;
+
 	perf = data->acpi_data;
 
 	for (i = 0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
@@ -115,6 +242,7 @@ static unsigned extract_freq(u32 val, struct acpi_cpufreq_data *data)
 {
 	switch (data->cpu_feature) {
 	case SYSTEM_INTEL_MSR_CAPABLE:
+	case SYSTEM_AMD_MSR_CAPABLE:
 		return extract_msr(val, data);
 	case SYSTEM_IO_CAPABLE:
 		return extract_io(val, data);
@@ -150,6 +278,7 @@ static void do_drv_read(void *_cmd)
 
 	switch (cmd->type) {
 	case SYSTEM_INTEL_MSR_CAPABLE:
+	case SYSTEM_AMD_MSR_CAPABLE:
 		rdmsr(cmd->addr.msr.reg, cmd->val, h);
 		break;
 	case SYSTEM_IO_CAPABLE:
@@ -174,6 +303,9 @@ static void do_drv_write(void *_cmd)
 		lo = (lo & ~INTEL_MSR_RANGE) | (cmd->val & INTEL_MSR_RANGE);
 		wrmsr(cmd->addr.msr.reg, lo, hi);
 		break;
+	case SYSTEM_AMD_MSR_CAPABLE:
+		wrmsr(cmd->addr.msr.reg, cmd->val, 0);
+		break;
 	case SYSTEM_IO_CAPABLE:
 		acpi_os_write_port((acpi_io_address)cmd->addr.io.port,
 				cmd->val,
@@ -217,6 +349,10 @@ static u32 get_cur_val(const struct cpumask *mask)
 		cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
 		cmd.addr.msr.reg = MSR_IA32_PERF_STATUS;
 		break;
+	case SYSTEM_AMD_MSR_CAPABLE:
+		cmd.type = SYSTEM_AMD_MSR_CAPABLE;
+		cmd.addr.msr.reg = MSR_AMD_PERF_STATUS;
+		break;
 	case SYSTEM_IO_CAPABLE:
 		cmd.type = SYSTEM_IO_CAPABLE;
 		perf = per_cpu(acfreq_data, cpumask_first(mask))->acpi_data;
@@ -326,6 +462,11 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 		cmd.addr.msr.reg = MSR_IA32_PERF_CTL;
 		cmd.val = (u32) perf->states[next_perf_state].control;
 		break;
+	case SYSTEM_AMD_MSR_CAPABLE:
+		cmd.type = SYSTEM_AMD_MSR_CAPABLE;
+		cmd.addr.msr.reg = MSR_AMD_PERF_CTL;
+		cmd.val = (u32) perf->states[next_perf_state].control;
+		break;
 	case SYSTEM_IO_CAPABLE:
 		cmd.type = SYSTEM_IO_CAPABLE;
 		cmd.addr.io.port = perf->control_register.address;
@@ -419,6 +560,44 @@ static void free_acpi_perf_data(void)
 	free_percpu(acpi_perf_data);
 }
 
+static int boost_notify(struct notifier_block *nb, unsigned long action,
+		      void *hcpu)
+{
+	unsigned cpu = (long)hcpu;
+	const struct cpumask *cpumask;
+
+	cpumask = get_cpu_mask(cpu);
+
+	/*
+	 * Clear the boost-disable bit on the CPU_DOWN path so that
+	 * this cpu cannot block the remaining ones from boosting. On
+	 * the CPU_UP path we simply keep the boost-disable flag in
+	 * sync with the current global state.
+	 */
+
+	switch (action) {
+	case CPU_UP_PREPARE:
+	case CPU_UP_PREPARE_FROZEN:
+		boost_set_msrs(boost_enabled, cpumask);
+		break;
+
+	case CPU_DOWN_PREPARE:
+	case CPU_DOWN_PREPARE_FROZEN:
+		boost_set_msrs(1, cpumask);
+		break;
+
+	default:
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
+
+static struct notifier_block boost_nb = {
+	.notifier_call          = boost_notify,
+};
+
 /*
  * acpi_cpufreq_early_init - initialize ACPI P-States library
  *
@@ -559,6 +738,14 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
 		cpumask_copy(policy->cpus, cpu_core_mask(cpu));
 	}
+
+	if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) {
+		cpumask_clear(policy->cpus);
+		cpumask_set_cpu(cpu, policy->cpus);
+		cpumask_copy(policy->related_cpus, cpu_sibling_mask(cpu));
+		policy->shared_type = CPUFREQ_SHARED_TYPE_HW;
+		pr_info_once(PFX "overriding BIOS provided _PSD data\n");
+	}
 #endif
 
 	/* capability check */
@@ -580,12 +767,16 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
 		pr_debug("HARDWARE addr space\n");
-		if (!check_est_cpu(cpu)) {
-			result = -ENODEV;
-			goto err_unreg;
+		if (check_est_cpu(cpu)) {
+			data->cpu_feature = SYSTEM_INTEL_MSR_CAPABLE;
+			break;
 		}
-		data->cpu_feature = SYSTEM_INTEL_MSR_CAPABLE;
-		break;
+		if (check_amd_hwpstate_cpu(cpu)) {
+			data->cpu_feature = SYSTEM_AMD_MSR_CAPABLE;
+			break;
+		}
+		result = -ENODEV;
+		goto err_unreg;
 	default:
 		pr_debug("Unknown addr space %d\n",
 			(u32) (perf->control_register.space_id));
@@ -718,6 +909,7 @@ static int acpi_cpufreq_resume(struct cpufreq_policy *policy)
 
 static struct freq_attr *acpi_cpufreq_attr[] = {
 	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,	/* this is a placeholder for cpb, do not remove */
 	NULL,
 };
 
@@ -733,6 +925,49 @@ static struct cpufreq_driver acpi_cpufreq_driver = {
 	.attr		= acpi_cpufreq_attr,
 };
 
+static void __init acpi_cpufreq_boost_init(void)
+{
+	if (boot_cpu_has(X86_FEATURE_CPB) || boot_cpu_has(X86_FEATURE_IDA)) {
+		msrs = msrs_alloc();
+
+		if (!msrs)
+			return;
+
+		boost_supported = true;
+		boost_enabled = boost_state(0);
+
+		get_online_cpus();
+
+		/* Force all MSRs to the same value */
+		boost_set_msrs(boost_enabled, cpu_online_mask);
+
+		register_cpu_notifier(&boost_nb);
+
+		put_online_cpus();
+	} else
+		global_boost.attr.mode = 0444;
+
+	/* We create the boost file in any case, though for systems without
+	 * hardware support it will be read-only and hardwired to return 0.
+	 */
+	if (sysfs_create_file(cpufreq_global_kobject, &(global_boost.attr)))
+		pr_warn(PFX "could not register global boost sysfs file\n");
+	else
+		pr_debug("registered global boost sysfs file\n");
+}
+
+static void __exit acpi_cpufreq_boost_exit(void)
+{
+	sysfs_remove_file(cpufreq_global_kobject, &(global_boost.attr));
+
+	if (msrs) {
+		unregister_cpu_notifier(&boost_nb);
+
+		msrs_free(msrs);
+		msrs = NULL;
+	}
+}
+
 static int __init acpi_cpufreq_init(void)
 {
 	int ret;
@@ -746,9 +981,32 @@ static int __init acpi_cpufreq_init(void)
 	if (ret)
 		return ret;
 
+#ifdef CONFIG_X86_ACPI_CPUFREQ_CPB
+	/* this is a sysfs file with a strange name and an even stranger
+	 * semantic - per CPU instantiation, but system global effect.
+	 * Lets enable it only on AMD CPUs for compatibility reasons and
+	 * only if configured. This is considered legacy code, which
+	 * will probably be removed at some point in the future.
+	 */
+	if (check_amd_hwpstate_cpu(0)) {
+		struct freq_attr **iter;
+
+		pr_debug("adding sysfs entry for cpb\n");
+
+		for (iter = acpi_cpufreq_attr; *iter != NULL; iter++)
+			;
+
+		/* make sure there is a terminator behind it */
+		if (iter[1] == NULL)
+			*iter = &cpb;
+	}
+#endif
+
 	ret = cpufreq_register_driver(&acpi_cpufreq_driver);
 	if (ret)
 		free_acpi_perf_data();
+	else
+		acpi_cpufreq_boost_init();
 
 	return ret;
 }
@@ -757,6 +1015,8 @@ static void __exit acpi_cpufreq_exit(void)
 {
 	pr_debug("acpi_cpufreq_exit\n");
 
+	acpi_cpufreq_boost_exit();
+
 	cpufreq_unregister_driver(&acpi_cpufreq_driver);
 
 	free_acpi_perf_data();
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
new file mode 100644
index 00000000000..e9158278c71
--- /dev/null
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * The OPP code in function cpu0_set_target() is reused from
+ * drivers/cpufreq/omap-cpufreq.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
+
+#include <linux/clk.h>
+#include <linux/cpu.h>
+#include <linux/cpufreq.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/opp.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+static unsigned int transition_latency;
+static unsigned int voltage_tolerance; /* in percentage */
+
+static struct device *cpu_dev;
+static struct clk *cpu_clk;
+static struct regulator *cpu_reg;
+static struct cpufreq_frequency_table *freq_table;
+
+static int cpu0_verify_speed(struct cpufreq_policy *policy)
+{
+	return cpufreq_frequency_table_verify(policy, freq_table);
+}
+
+static unsigned int cpu0_get_speed(unsigned int cpu)
+{
+	return clk_get_rate(cpu_clk) / 1000;
+}
+
+static int cpu0_set_target(struct cpufreq_policy *policy,
+			   unsigned int target_freq, unsigned int relation)
+{
+	struct cpufreq_freqs freqs;
+	struct opp *opp;
+	unsigned long freq_Hz, volt = 0, volt_old = 0, tol = 0;
+	unsigned int index, cpu;
+	int ret;
+
+	ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
+					     relation, &index);
+	if (ret) {
+		pr_err("failed to match target freqency %d: %d\n",
+		       target_freq, ret);
+		return ret;
+	}
+
+	freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000);
+	if (freq_Hz < 0)
+		freq_Hz = freq_table[index].frequency * 1000;
+	freqs.new = freq_Hz / 1000;
+	freqs.old = clk_get_rate(cpu_clk) / 1000;
+
+	if (freqs.old == freqs.new)
+		return 0;
+
+	for_each_online_cpu(cpu) {
+		freqs.cpu = cpu;
+		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+	}
+
+	if (cpu_reg) {
+		opp = opp_find_freq_ceil(cpu_dev, &freq_Hz);
+		if (IS_ERR(opp)) {
+			pr_err("failed to find OPP for %ld\n", freq_Hz);
+			return PTR_ERR(opp);
+		}
+		volt = opp_get_voltage(opp);
+		tol = volt * voltage_tolerance / 100;
+		volt_old = regulator_get_voltage(cpu_reg);
+	}
+
+	pr_debug("%u MHz, %ld mV --> %u MHz, %ld mV\n",
+		 freqs.old / 1000, volt_old ? volt_old / 1000 : -1,
+		 freqs.new / 1000, volt ? volt / 1000 : -1);
+
+	/* scaling up?  scale voltage before frequency */
+	if (cpu_reg && freqs.new > freqs.old) {
+		ret = regulator_set_voltage_tol(cpu_reg, volt, tol);
+		if (ret) {
+			pr_err("failed to scale voltage up: %d\n", ret);
+			freqs.new = freqs.old;
+			return ret;
+		}
+	}
+
+	ret = clk_set_rate(cpu_clk, freqs.new * 1000);
+	if (ret) {
+		pr_err("failed to set clock rate: %d\n", ret);
+		if (cpu_reg)
+			regulator_set_voltage_tol(cpu_reg, volt_old, tol);
+		return ret;
+	}
+
+	/* scaling down?  scale voltage after frequency */
+	if (cpu_reg && freqs.new < freqs.old) {
+		ret = regulator_set_voltage_tol(cpu_reg, volt, tol);
+		if (ret) {
+			pr_err("failed to scale voltage down: %d\n", ret);
+			clk_set_rate(cpu_clk, freqs.old * 1000);
+			freqs.new = freqs.old;
+			return ret;
+		}
+	}
+
+	for_each_online_cpu(cpu) {
+		freqs.cpu = cpu;
+		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+	}
+
+	return 0;
+}
+
+static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
+{
+	int ret;
+
+	if (policy->cpu != 0)
+		return -EINVAL;
+
+	ret = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+	if (ret) {
+		pr_err("invalid frequency table: %d\n", ret);
+		return ret;
+	}
+
+	policy->cpuinfo.transition_latency = transition_latency;
+	policy->cur = clk_get_rate(cpu_clk) / 1000;
+
+	/*
+	 * The driver only supports the SMP configuartion where all processors
+	 * share the clock and voltage and clock.  Use cpufreq affected_cpus
+	 * interface to have all CPUs scaled together.
+	 */
+	policy->shared_type = CPUFREQ_SHARED_TYPE_ANY;
+	cpumask_setall(policy->cpus);
+
+	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
+
+	return 0;
+}
+
+static int cpu0_cpufreq_exit(struct cpufreq_policy *policy)
+{
+	cpufreq_frequency_table_put_attr(policy->cpu);
+
+	return 0;
+}
+
+static struct freq_attr *cpu0_cpufreq_attr[] = {
+	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,
+};
+
+static struct cpufreq_driver cpu0_cpufreq_driver = {
+	.flags = CPUFREQ_STICKY,
+	.verify = cpu0_verify_speed,
+	.target = cpu0_set_target,
+	.get = cpu0_get_speed,
+	.init = cpu0_cpufreq_init,
+	.exit = cpu0_cpufreq_exit,
+	.name = "generic_cpu0",
+	.attr = cpu0_cpufreq_attr,
+};
+
+static int __devinit cpu0_cpufreq_driver_init(void)
+{
+	struct device_node *np;
+	int ret;
+
+	np = of_find_node_by_path("/cpus/cpu@0");
+	if (!np) {
+		pr_err("failed to find cpu0 node\n");
+		return -ENOENT;
+	}
+
+	cpu_dev = get_cpu_device(0);
+	if (!cpu_dev) {
+		pr_err("failed to get cpu0 device\n");
+		ret = -ENODEV;
+		goto out_put_node;
+	}
+
+	cpu_dev->of_node = np;
+
+	cpu_clk = clk_get(cpu_dev, NULL);
+	if (IS_ERR(cpu_clk)) {
+		ret = PTR_ERR(cpu_clk);
+		pr_err("failed to get cpu0 clock: %d\n", ret);
+		goto out_put_node;
+	}
+
+	cpu_reg = regulator_get(cpu_dev, "cpu0");
+	if (IS_ERR(cpu_reg)) {
+		pr_warn("failed to get cpu0 regulator\n");
+		cpu_reg = NULL;
+	}
+
+	ret = of_init_opp_table(cpu_dev);
+	if (ret) {
+		pr_err("failed to init OPP table: %d\n", ret);
+		goto out_put_node;
+	}
+
+	ret = opp_init_cpufreq_table(cpu_dev, &freq_table);
+	if (ret) {
+		pr_err("failed to init cpufreq table: %d\n", ret);
+		goto out_put_node;
+	}
+
+	of_property_read_u32(np, "voltage-tolerance", &voltage_tolerance);
+
+	if (of_property_read_u32(np, "clock-latency", &transition_latency))
+		transition_latency = CPUFREQ_ETERNAL;
+
+	if (cpu_reg) {
+		struct opp *opp;
+		unsigned long min_uV, max_uV;
+		int i;
+
+		/*
+		 * OPP is maintained in order of increasing frequency, and
+		 * freq_table initialised from OPP is therefore sorted in the
+		 * same order.
+		 */
+		for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
+			;
+		opp = opp_find_freq_exact(cpu_dev,
+				freq_table[0].frequency * 1000, true);
+		min_uV = opp_get_voltage(opp);
+		opp = opp_find_freq_exact(cpu_dev,
+				freq_table[i-1].frequency * 1000, true);
+		max_uV = opp_get_voltage(opp);
+		ret = regulator_set_voltage_time(cpu_reg, min_uV, max_uV);
+		if (ret > 0)
+			transition_latency += ret * 1000;
+	}
+
+	ret = cpufreq_register_driver(&cpu0_cpufreq_driver);
+	if (ret) {
+		pr_err("failed register driver: %d\n", ret);
+		goto out_free_table;
+	}
+
+	of_node_put(np);
+	return 0;
+
+out_free_table:
+	opp_free_cpufreq_table(cpu_dev, &freq_table);
+out_put_node:
+	of_node_put(np);
+	return ret;
+}
+late_initcall(cpu0_cpufreq_driver_init);
+
+MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
+MODULE_DESCRIPTION("Generic CPU0 cpufreq driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 235a340e81f..a152af7e199 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -466,7 +466,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
 	delay -= jiffies % delay;
 
 	dbs_info->enable = 1;
-	INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
+	INIT_DEFERRABLE_WORK(&dbs_info->work, do_dbs_timer);
 	schedule_delayed_work_on(dbs_info->cpu, &dbs_info->work, delay);
 }
 
@@ -504,6 +504,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 				j_dbs_info->prev_cpu_nice =
 						kcpustat_cpu(j).cpustat[CPUTIME_NICE];
 		}
+		this_dbs_info->cpu = cpu;
 		this_dbs_info->down_skip = 0;
 		this_dbs_info->requested_freq = policy->cur;
 
@@ -583,6 +584,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			__cpufreq_driver_target(
 					this_dbs_info->cur_policy,
 					policy->min, CPUFREQ_RELATION_L);
+		dbs_check_cpu(this_dbs_info);
 		mutex_unlock(&this_dbs_info->timer_mutex);
 
 		break;
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 836e9b062e5..396322f2a83 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -644,7 +644,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
 		delay -= jiffies % delay;
 
 	dbs_info->sample_type = DBS_NORMAL_SAMPLE;
-	INIT_DELAYED_WORK_DEFERRABLE(&dbs_info->work, do_dbs_timer);
+	INIT_DEFERRABLE_WORK(&dbs_info->work, do_dbs_timer);
 	schedule_delayed_work_on(dbs_info->cpu, &dbs_info->work, delay);
 }
 
@@ -761,6 +761,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 		else if (policy->min > this_dbs_info->cur_policy->cur)
 			__cpufreq_driver_target(this_dbs_info->cur_policy,
 				policy->min, CPUFREQ_RELATION_L);
+		dbs_check_cpu(this_dbs_info);
 		mutex_unlock(&this_dbs_info->timer_mutex);
 		break;
 	}
diff --git a/drivers/cpufreq/longhaul.h b/drivers/cpufreq/longhaul.h
index cbf48fbca88..e2dc436099d 100644
--- a/drivers/cpufreq/longhaul.h
+++ b/drivers/cpufreq/longhaul.h
@@ -56,7 +56,7 @@ union msr_longhaul {
 /*
  * VIA C3 Samuel 1  & Samuel 2 (stepping 0)
  */
-static const int __cpuinitdata samuel1_mults[16] = {
+static const int __cpuinitconst samuel1_mults[16] = {
 	-1, /* 0000 -> RESERVED */
 	30, /* 0001 ->  3.0x */
 	40, /* 0010 ->  4.0x */
@@ -75,7 +75,7 @@ static const int __cpuinitdata samuel1_mults[16] = {
 	-1, /* 1111 -> RESERVED */
 };
 
-static const int __cpuinitdata samuel1_eblcr[16] = {
+static const int __cpuinitconst samuel1_eblcr[16] = {
 	50, /* 0000 -> RESERVED */
 	30, /* 0001 ->  3.0x */
 	40, /* 0010 ->  4.0x */
@@ -97,7 +97,7 @@ static const int __cpuinitdata samuel1_eblcr[16] = {
 /*
  * VIA C3 Samuel2 Stepping 1->15
  */
-static const int __cpuinitdata samuel2_eblcr[16] = {
+static const int __cpuinitconst samuel2_eblcr[16] = {
 	50,  /* 0000 ->  5.0x */
 	30,  /* 0001 ->  3.0x */
 	40,  /* 0010 ->  4.0x */
@@ -119,7 +119,7 @@ static const int __cpuinitdata samuel2_eblcr[16] = {
 /*
  * VIA C3 Ezra
  */
-static const int __cpuinitdata ezra_mults[16] = {
+static const int __cpuinitconst ezra_mults[16] = {
 	100, /* 0000 -> 10.0x */
 	30,  /* 0001 ->  3.0x */
 	40,  /* 0010 ->  4.0x */
@@ -138,7 +138,7 @@ static const int __cpuinitdata ezra_mults[16] = {
 	120, /* 1111 -> 12.0x */
 };
 
-static const int __cpuinitdata ezra_eblcr[16] = {
+static const int __cpuinitconst ezra_eblcr[16] = {
 	50,  /* 0000 ->  5.0x */
 	30,  /* 0001 ->  3.0x */
 	40,  /* 0010 ->  4.0x */
@@ -160,7 +160,7 @@ static const int __cpuinitdata ezra_eblcr[16] = {
 /*
  * VIA C3 (Ezra-T) [C5M].
  */
-static const int __cpuinitdata ezrat_mults[32] = {
+static const int __cpuinitconst ezrat_mults[32] = {
 	100, /* 0000 -> 10.0x */
 	30,  /* 0001 ->  3.0x */
 	40,  /* 0010 ->  4.0x */
@@ -196,7 +196,7 @@ static const int __cpuinitdata ezrat_mults[32] = {
 	-1,  /* 1111 -> RESERVED (12.0x) */
 };
 
-static const int __cpuinitdata ezrat_eblcr[32] = {
+static const int __cpuinitconst ezrat_eblcr[32] = {
 	50,  /* 0000 ->  5.0x */
 	30,  /* 0001 ->  3.0x */
 	40,  /* 0010 ->  4.0x */
@@ -235,7 +235,7 @@ static const int __cpuinitdata ezrat_eblcr[32] = {
 /*
  * VIA C3 Nehemiah */
 
-static const int __cpuinitdata nehemiah_mults[32] = {
+static const int __cpuinitconst nehemiah_mults[32] = {
 	100, /* 0000 -> 10.0x */
 	-1, /* 0001 -> 16.0x */
 	40,  /* 0010 ->  4.0x */
@@ -270,7 +270,7 @@ static const int __cpuinitdata nehemiah_mults[32] = {
 	-1, /* 1111 -> 12.0x */
 };
 
-static const int __cpuinitdata nehemiah_eblcr[32] = {
+static const int __cpuinitconst nehemiah_eblcr[32] = {
 	50,  /* 0000 ->  5.0x */
 	160, /* 0001 -> 16.0x */
 	40,  /* 0010 ->  4.0x */
@@ -315,7 +315,7 @@ struct mV_pos {
 	unsigned short pos;
 };
 
-static const struct mV_pos __cpuinitdata vrm85_mV[32] = {
+static const struct mV_pos __cpuinitconst vrm85_mV[32] = {
 	{1250, 8},	{1200, 6},	{1150, 4},	{1100, 2},
 	{1050, 0},	{1800, 30},	{1750, 28},	{1700, 26},
 	{1650, 24},	{1600, 22},	{1550, 20},	{1500, 18},
@@ -326,14 +326,14 @@ static const struct mV_pos __cpuinitdata vrm85_mV[32] = {
 	{1475, 17},	{1425, 15},	{1375, 13},	{1325, 11}
 };
 
-static const unsigned char __cpuinitdata mV_vrm85[32] = {
+static const unsigned char __cpuinitconst mV_vrm85[32] = {
 	0x04,	0x14,	0x03,	0x13,	0x02,	0x12,	0x01,	0x11,
 	0x00,	0x10,	0x0f,	0x1f,	0x0e,	0x1e,	0x0d,	0x1d,
 	0x0c,	0x1c,	0x0b,	0x1b,	0x0a,	0x1a,	0x09,	0x19,
 	0x08,	0x18,	0x07,	0x17,	0x06,	0x16,	0x05,	0x15
 };
 
-static const struct mV_pos __cpuinitdata mobilevrm_mV[32] = {
+static const struct mV_pos __cpuinitconst mobilevrm_mV[32] = {
 	{1750, 31},	{1700, 30},	{1650, 29},	{1600, 28},
 	{1550, 27},	{1500, 26},	{1450, 25},	{1400, 24},
 	{1350, 23},	{1300, 22},	{1250, 21},	{1200, 20},
@@ -344,7 +344,7 @@ static const struct mV_pos __cpuinitdata mobilevrm_mV[32] = {
 	{675, 3},	{650, 2},	{625, 1},	{600, 0}
 };
 
-static const unsigned char __cpuinitdata mV_mobilevrm[32] = {
+static const unsigned char __cpuinitconst mV_mobilevrm[32] = {
 	0x1f,	0x1e,	0x1d,	0x1c,	0x1b,	0x1a,	0x19,	0x18,
 	0x17,	0x16,	0x15,	0x14,	0x13,	0x12,	0x11,	0x10,
 	0x0f,	0x0e,	0x0d,	0x0c,	0x0b,	0x0a,	0x09,	0x08,
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 17fa04d08be..65f8e9a5497 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -40,16 +40,6 @@
 /* OPP tolerance in percentage */
 #define	OPP_TOLERANCE	4
 
-#ifdef CONFIG_SMP
-struct lpj_info {
-	unsigned long	ref;
-	unsigned int	freq;
-};
-
-static DEFINE_PER_CPU(struct lpj_info, lpj_ref);
-static struct lpj_info global_lpj_ref;
-#endif
-
 static struct cpufreq_frequency_table *freq_table;
 static atomic_t freq_table_users = ATOMIC_INIT(0);
 static struct clk *mpu_clk;
@@ -161,31 +151,6 @@ static int omap_target(struct cpufreq_policy *policy,
 	}
 
 	freqs.new = omap_getspeed(policy->cpu);
-#ifdef CONFIG_SMP
-	/*
-	 * Note that loops_per_jiffy is not updated on SMP systems in
-	 * cpufreq driver. So, update the per-CPU loops_per_jiffy value
-	 * on frequency transition. We need to update all dependent CPUs.
-	 */
-	for_each_cpu(i, policy->cpus) {
-		struct lpj_info *lpj = &per_cpu(lpj_ref, i);
-		if (!lpj->freq) {
-			lpj->ref = per_cpu(cpu_data, i).loops_per_jiffy;
-			lpj->freq = freqs.old;
-		}
-
-		per_cpu(cpu_data, i).loops_per_jiffy =
-			cpufreq_scale(lpj->ref, lpj->freq, freqs.new);
-	}
-
-	/* And don't forget to adjust the global one */
-	if (!global_lpj_ref.freq) {
-		global_lpj_ref.ref = loops_per_jiffy;
-		global_lpj_ref.freq = freqs.old;
-	}
-	loops_per_jiffy = cpufreq_scale(global_lpj_ref.ref, global_lpj_ref.freq,
-					freqs.new);
-#endif
 
 done:
 	/* notifiers */
@@ -218,7 +183,7 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
 
 	policy->cur = policy->min = policy->max = omap_getspeed(policy->cpu);
 
-	if (atomic_inc_return(&freq_table_users) == 1)
+	if (!freq_table)
 		result = opp_init_cpufreq_table(mpu_dev, &freq_table);
 
 	if (result) {
@@ -227,6 +192,8 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
 		goto fail_ck;
 	}
 
+	atomic_inc_return(&freq_table_users);
+
 	result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
 	if (result)
 		goto fail_table;
@@ -299,9 +266,9 @@ static int __init omap_cpufreq_init(void)
 	}
 
 	mpu_dev = omap_device_get_by_hwmod_name("mpu");
-	if (!mpu_dev) {
+	if (IS_ERR(mpu_dev)) {
 		pr_warning("%s: unable to get the mpu device\n", __func__);
-		return -EINVAL;
+		return PTR_ERR(mpu_dev);
 	}
 
 	mpu_reg = regulator_get(mpu_dev, "vcc");
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index cdc02ac8f41..503996a94a6 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -454,6 +454,7 @@ static int __init pcc_cpufreq_probe(void)
 					mem_resource->address_length);
 	if (pcch_virt_addr == NULL) {
 		pr_debug("probe: could not map shared mem region\n");
+		ret = -ENOMEM;
 		goto out_free;
 	}
 	pcch_hdr = pcch_virt_addr;
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index c0e816468e3..129e80bfff2 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -35,7 +35,6 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/cpumask.h>
-#include <linux/sched.h>	/* for current / set_cpus_allowed() */
 #include <linux/io.h>
 #include <linux/delay.h>
 
@@ -49,22 +48,12 @@
 #define PFX "powernow-k8: "
 #define VERSION "version 2.20.00"
 #include "powernow-k8.h"
-#include "mperf.h"
 
 /* serialize freq changes  */
 static DEFINE_MUTEX(fidvid_mutex);
 
 static DEFINE_PER_CPU(struct powernow_k8_data *, powernow_data);
 
-static int cpu_family = CPU_OPTERON;
-
-/* array to map SW pstate number to acpi state */
-static u32 ps_to_as[8];
-
-/* core performance boost */
-static bool cpb_capable, cpb_enabled;
-static struct msr __percpu *msrs;
-
 static struct cpufreq_driver cpufreq_amd64_driver;
 
 #ifndef CONFIG_SMP
@@ -86,12 +75,6 @@ static u32 find_khz_freq_from_fid(u32 fid)
 	return 1000 * find_freq_from_fid(fid);
 }
 
-static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data,
-				     u32 pstate)
-{
-	return data[ps_to_as[pstate]].frequency;
-}
-
 /* Return the vco fid for an input fid
  *
  * Each "low" fid has corresponding "high" fid, and you can get to "low" fids
@@ -114,9 +97,6 @@ static int pending_bit_stuck(void)
 {
 	u32 lo, hi;
 
-	if (cpu_family == CPU_HW_PSTATE)
-		return 0;
-
 	rdmsr(MSR_FIDVID_STATUS, lo, hi);
 	return lo & MSR_S_LO_CHANGE_PENDING ? 1 : 0;
 }
@@ -130,20 +110,6 @@ static int query_current_values_with_pending_wait(struct powernow_k8_data *data)
 	u32 lo, hi;
 	u32 i = 0;
 
-	if (cpu_family == CPU_HW_PSTATE) {
-		rdmsr(MSR_PSTATE_STATUS, lo, hi);
-		i = lo & HW_PSTATE_MASK;
-		data->currpstate = i;
-
-		/*
-		 * a workaround for family 11h erratum 311 might cause
-		 * an "out-of-range Pstate if the core is in Pstate-0
-		 */
-		if ((boot_cpu_data.x86 == 0x11) && (i >= data->numps))
-			data->currpstate = HW_PSTATE_0;
-
-		return 0;
-	}
 	do {
 		if (i++ > 10000) {
 			pr_debug("detected change pending stuck\n");
@@ -300,14 +266,6 @@ static int decrease_vid_code_by_step(struct powernow_k8_data *data,
 	return 0;
 }
 
-/* Change hardware pstate by single MSR write */
-static int transition_pstate(struct powernow_k8_data *data, u32 pstate)
-{
-	wrmsr(MSR_PSTATE_CTRL, pstate, 0);
-	data->currpstate = pstate;
-	return 0;
-}
-
 /* Change Opteron/Athlon64 fid and vid, by the 3 phases. */
 static int transition_fid_vid(struct powernow_k8_data *data,
 		u32 reqfid, u32 reqvid)
@@ -524,8 +482,6 @@ static int core_voltage_post_transition(struct powernow_k8_data *data,
 static const struct x86_cpu_id powernow_k8_ids[] = {
 	/* IO based frequency switching */
 	{ X86_VENDOR_AMD, 0xf },
-	/* MSR based frequency switching supported */
-	X86_FEATURE_MATCH(X86_FEATURE_HW_PSTATE),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, powernow_k8_ids);
@@ -561,15 +517,8 @@ static void check_supported_cpu(void *_rc)
 				"Power state transitions not supported\n");
 			return;
 		}
-	} else { /* must be a HW Pstate capable processor */
-		cpuid(CPUID_FREQ_VOLT_CAPABILITIES, &eax, &ebx, &ecx, &edx);
-		if ((edx & USE_HW_PSTATE) == USE_HW_PSTATE)
-			cpu_family = CPU_HW_PSTATE;
-		else
-			return;
+		*rc = 0;
 	}
-
-	*rc = 0;
 }
 
 static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst,
@@ -633,18 +582,11 @@ static void print_basics(struct powernow_k8_data *data)
 	for (j = 0; j < data->numps; j++) {
 		if (data->powernow_table[j].frequency !=
 				CPUFREQ_ENTRY_INVALID) {
-			if (cpu_family == CPU_HW_PSTATE) {
-				printk(KERN_INFO PFX
-					"   %d : pstate %d (%d MHz)\n", j,
-					data->powernow_table[j].index,
-					data->powernow_table[j].frequency/1000);
-			} else {
 				printk(KERN_INFO PFX
 					"fid 0x%x (%d MHz), vid 0x%x\n",
 					data->powernow_table[j].index & 0xff,
 					data->powernow_table[j].frequency/1000,
 					data->powernow_table[j].index >> 8);
-			}
 		}
 	}
 	if (data->batps)
@@ -652,20 +594,6 @@ static void print_basics(struct powernow_k8_data *data)
 				data->batps);
 }
 
-static u32 freq_from_fid_did(u32 fid, u32 did)
-{
-	u32 mhz = 0;
-
-	if (boot_cpu_data.x86 == 0x10)
-		mhz = (100 * (fid + 0x10)) >> did;
-	else if (boot_cpu_data.x86 == 0x11)
-		mhz = (100 * (fid + 8)) >> did;
-	else
-		BUG();
-
-	return mhz * 1000;
-}
-
 static int fill_powernow_table(struct powernow_k8_data *data,
 		struct pst_s *pst, u8 maxvid)
 {
@@ -825,7 +753,7 @@ static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data,
 {
 	u64 control;
 
-	if (!data->acpi_data.state_count || (cpu_family == CPU_HW_PSTATE))
+	if (!data->acpi_data.state_count)
 		return;
 
 	control = data->acpi_data.states[index].control;
@@ -876,10 +804,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 	data->numps = data->acpi_data.state_count;
 	powernow_k8_acpi_pst_values(data, 0);
 
-	if (cpu_family == CPU_HW_PSTATE)
-		ret_val = fill_powernow_table_pstate(data, powernow_table);
-	else
-		ret_val = fill_powernow_table_fidvid(data, powernow_table);
+	ret_val = fill_powernow_table_fidvid(data, powernow_table);
 	if (ret_val)
 		goto err_out_mem;
 
@@ -916,51 +841,6 @@ err_out:
 	return ret_val;
 }
 
-static int fill_powernow_table_pstate(struct powernow_k8_data *data,
-		struct cpufreq_frequency_table *powernow_table)
-{
-	int i;
-	u32 hi = 0, lo = 0;
-	rdmsr(MSR_PSTATE_CUR_LIMIT, lo, hi);
-	data->max_hw_pstate = (lo & HW_PSTATE_MAX_MASK) >> HW_PSTATE_MAX_SHIFT;
-
-	for (i = 0; i < data->acpi_data.state_count; i++) {
-		u32 index;
-
-		index = data->acpi_data.states[i].control & HW_PSTATE_MASK;
-		if (index > data->max_hw_pstate) {
-			printk(KERN_ERR PFX "invalid pstate %d - "
-					"bad value %d.\n", i, index);
-			printk(KERN_ERR PFX "Please report to BIOS "
-					"manufacturer\n");
-			invalidate_entry(powernow_table, i);
-			continue;
-		}
-
-		ps_to_as[index] = i;
-
-		/* Frequency may be rounded for these */
-		if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10)
-				 || boot_cpu_data.x86 == 0x11) {
-
-			rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi);
-			if (!(hi & HW_PSTATE_VALID_MASK)) {
-				pr_debug("invalid pstate %d, ignoring\n", index);
-				invalidate_entry(powernow_table, i);
-				continue;
-			}
-
-			powernow_table[i].frequency =
-				freq_from_fid_did(lo & 0x3f, (lo >> 6) & 7);
-		} else
-			powernow_table[i].frequency =
-				data->acpi_data.states[i].core_frequency * 1000;
-
-		powernow_table[i].index = index;
-	}
-	return 0;
-}
-
 static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
 		struct cpufreq_frequency_table *powernow_table)
 {
@@ -1037,15 +917,7 @@ static int get_transition_latency(struct powernow_k8_data *data)
 			max_latency = cur_latency;
 	}
 	if (max_latency == 0) {
-		/*
-		 * Fam 11h and later may return 0 as transition latency. This
-		 * is intended and means "very fast". While cpufreq core and
-		 * governors currently can handle that gracefully, better set it
-		 * to 1 to avoid problems in the future.
-		 */
-		if (boot_cpu_data.x86 < 0x11)
-			printk(KERN_ERR FW_WARN PFX "Invalid zero transition "
-				"latency\n");
+		pr_err(FW_WARN PFX "Invalid zero transition latency\n");
 		max_latency = 1;
 	}
 	/* value in usecs, needs to be in nanoseconds */
@@ -1105,50 +977,23 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
 	return res;
 }
 
-/* Take a frequency, and issue the hardware pstate transition command */
-static int transition_frequency_pstate(struct powernow_k8_data *data,
-		unsigned int index)
-{
-	u32 pstate = 0;
-	int res, i;
-	struct cpufreq_freqs freqs;
-
-	pr_debug("cpu %d transition to index %u\n", smp_processor_id(), index);
-
-	/* get MSR index for hardware pstate transition */
-	pstate = index & HW_PSTATE_MASK;
-	if (pstate > data->max_hw_pstate)
-		return -EINVAL;
-
-	freqs.old = find_khz_freq_from_pstate(data->powernow_table,
-			data->currpstate);
-	freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
-
-	for_each_cpu(i, data->available_cores) {
-		freqs.cpu = i;
-		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-	}
-
-	res = transition_pstate(data, pstate);
-	freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
-
-	for_each_cpu(i, data->available_cores) {
-		freqs.cpu = i;
-		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-	}
-	return res;
-}
+struct powernowk8_target_arg {
+	struct cpufreq_policy		*pol;
+	unsigned			targfreq;
+	unsigned			relation;
+};
 
-/* Driver entry point to switch to the target frequency */
-static int powernowk8_target(struct cpufreq_policy *pol,
-		unsigned targfreq, unsigned relation)
+static long powernowk8_target_fn(void *arg)
 {
-	cpumask_var_t oldmask;
+	struct powernowk8_target_arg *pta = arg;
+	struct cpufreq_policy *pol = pta->pol;
+	unsigned targfreq = pta->targfreq;
+	unsigned relation = pta->relation;
 	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 	u32 checkfid;
 	u32 checkvid;
 	unsigned int newstate;
-	int ret = -EIO;
+	int ret;
 
 	if (!data)
 		return -EINVAL;
@@ -1156,76 +1001,65 @@ static int powernowk8_target(struct cpufreq_policy *pol,
 	checkfid = data->currfid;
 	checkvid = data->currvid;
 
-	/* only run on specific CPU from here on. */
-	/* This is poor form: use a workqueue or smp_call_function_single */
-	if (!alloc_cpumask_var(&oldmask, GFP_KERNEL))
-		return -ENOMEM;
-
-	cpumask_copy(oldmask, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(pol->cpu));
-
-	if (smp_processor_id() != pol->cpu) {
-		printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
-		goto err_out;
-	}
-
 	if (pending_bit_stuck()) {
 		printk(KERN_ERR PFX "failing targ, change pending bit set\n");
-		goto err_out;
+		return -EIO;
 	}
 
 	pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n",
 		pol->cpu, targfreq, pol->min, pol->max, relation);
 
 	if (query_current_values_with_pending_wait(data))
-		goto err_out;
+		return -EIO;
 
-	if (cpu_family != CPU_HW_PSTATE) {
-		pr_debug("targ: curr fid 0x%x, vid 0x%x\n",
-		data->currfid, data->currvid);
+	pr_debug("targ: curr fid 0x%x, vid 0x%x\n",
+		 data->currfid, data->currvid);
 
-		if ((checkvid != data->currvid) ||
-		    (checkfid != data->currfid)) {
-			printk(KERN_INFO PFX
-				"error - out of sync, fix 0x%x 0x%x, "
-				"vid 0x%x 0x%x\n",
-				checkfid, data->currfid,
-				checkvid, data->currvid);
-		}
+	if ((checkvid != data->currvid) ||
+	    (checkfid != data->currfid)) {
+		pr_info(PFX
+		       "error - out of sync, fix 0x%x 0x%x, vid 0x%x 0x%x\n",
+		       checkfid, data->currfid,
+		       checkvid, data->currvid);
 	}
 
 	if (cpufreq_frequency_table_target(pol, data->powernow_table,
 				targfreq, relation, &newstate))
-		goto err_out;
+		return -EIO;
 
 	mutex_lock(&fidvid_mutex);
 
 	powernow_k8_acpi_pst_values(data, newstate);
 
-	if (cpu_family == CPU_HW_PSTATE)
-		ret = transition_frequency_pstate(data,
-			data->powernow_table[newstate].index);
-	else
-		ret = transition_frequency_fidvid(data, newstate);
+	ret = transition_frequency_fidvid(data, newstate);
+
 	if (ret) {
 		printk(KERN_ERR PFX "transition frequency failed\n");
-		ret = 1;
 		mutex_unlock(&fidvid_mutex);
-		goto err_out;
+		return 1;
 	}
 	mutex_unlock(&fidvid_mutex);
 
-	if (cpu_family == CPU_HW_PSTATE)
-		pol->cur = find_khz_freq_from_pstate(data->powernow_table,
-				data->powernow_table[newstate].index);
-	else
-		pol->cur = find_khz_freq_from_fid(data->currfid);
-	ret = 0;
+	pol->cur = find_khz_freq_from_fid(data->currfid);
 
-err_out:
-	set_cpus_allowed_ptr(current, oldmask);
-	free_cpumask_var(oldmask);
-	return ret;
+	return 0;
+}
+
+/* Driver entry point to switch to the target frequency */
+static int powernowk8_target(struct cpufreq_policy *pol,
+		unsigned targfreq, unsigned relation)
+{
+	struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq,
+					     .relation = relation };
+
+	/*
+	 * Must run on @pol->cpu.  cpufreq core is responsible for ensuring
+	 * that we're bound to the current CPU and pol->cpu stays online.
+	 */
+	if (smp_processor_id() == pol->cpu)
+		return powernowk8_target_fn(&pta);
+	else
+		return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
 }
 
 /* Driver entry point to verify the policy and range of frequencies */
@@ -1259,22 +1093,23 @@ static void __cpuinit powernowk8_cpu_init_on_cpu(void *_init_on_cpu)
 		return;
 	}
 
-	if (cpu_family == CPU_OPTERON)
-		fidvid_msr_init();
+	fidvid_msr_init();
 
 	init_on_cpu->rc = 0;
 }
 
+static const char missing_pss_msg[] =
+	KERN_ERR
+	FW_BUG PFX "No compatible ACPI _PSS objects found.\n"
+	FW_BUG PFX "First, make sure Cool'N'Quiet is enabled in the BIOS.\n"
+	FW_BUG PFX "If that doesn't help, try upgrading your BIOS.\n";
+
 /* per CPU init entry point to the driver */
 static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 {
-	static const char ACPI_PSS_BIOS_BUG_MSG[] =
-		KERN_ERR FW_BUG PFX "No compatible ACPI _PSS objects found.\n"
-		FW_BUG PFX "Try again with latest BIOS.\n";
 	struct powernow_k8_data *data;
 	struct init_on_cpu init_on_cpu;
 	int rc;
-	struct cpuinfo_x86 *c = &cpu_data(pol->cpu);
 
 	if (!cpu_online(pol->cpu))
 		return -ENODEV;
@@ -1290,7 +1125,6 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 	}
 
 	data->cpu = pol->cpu;
-	data->currpstate = HW_PSTATE_INVALID;
 
 	if (powernow_k8_cpu_init_acpi(data)) {
 		/*
@@ -1298,7 +1132,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 		 * an UP version, and is deprecated by AMD.
 		 */
 		if (num_online_cpus() != 1) {
-			printk_once(ACPI_PSS_BIOS_BUG_MSG);
+			printk_once(missing_pss_msg);
 			goto err_out;
 		}
 		if (pol->cpu != 0) {
@@ -1327,17 +1161,10 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 	if (rc != 0)
 		goto err_out_exit_acpi;
 
-	if (cpu_family == CPU_HW_PSTATE)
-		cpumask_copy(pol->cpus, cpumask_of(pol->cpu));
-	else
-		cpumask_copy(pol->cpus, cpu_core_mask(pol->cpu));
+	cpumask_copy(pol->cpus, cpu_core_mask(pol->cpu));
 	data->available_cores = pol->cpus;
 
-	if (cpu_family == CPU_HW_PSTATE)
-		pol->cur = find_khz_freq_from_pstate(data->powernow_table,
-				data->currpstate);
-	else
-		pol->cur = find_khz_freq_from_fid(data->currfid);
+	pol->cur = find_khz_freq_from_fid(data->currfid);
 	pr_debug("policy current frequency %d kHz\n", pol->cur);
 
 	/* min/max the cpu is capable of */
@@ -1349,18 +1176,10 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 		return -EINVAL;
 	}
 
-	/* Check for APERF/MPERF support in hardware */
-	if (cpu_has(c, X86_FEATURE_APERFMPERF))
-		cpufreq_amd64_driver.getavg = cpufreq_get_measured_perf;
-
 	cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu);
 
-	if (cpu_family == CPU_HW_PSTATE)
-		pr_debug("cpu_init done, current pstate 0x%x\n",
-				data->currpstate);
-	else
-		pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n",
-			data->currfid, data->currvid);
+	pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n",
+		 data->currfid, data->currvid);
 
 	per_cpu(powernow_data, pol->cpu) = data;
 
@@ -1413,88 +1232,15 @@ static unsigned int powernowk8_get(unsigned int cpu)
 	if (err)
 		goto out;
 
-	if (cpu_family == CPU_HW_PSTATE)
-		khz = find_khz_freq_from_pstate(data->powernow_table,
-						data->currpstate);
-	else
-		khz = find_khz_freq_from_fid(data->currfid);
+	khz = find_khz_freq_from_fid(data->currfid);
 
 
 out:
 	return khz;
 }
 
-static void _cpb_toggle_msrs(bool t)
-{
-	int cpu;
-
-	get_online_cpus();
-
-	rdmsr_on_cpus(cpu_online_mask, MSR_K7_HWCR, msrs);
-
-	for_each_cpu(cpu, cpu_online_mask) {
-		struct msr *reg = per_cpu_ptr(msrs, cpu);
-		if (t)
-			reg->l &= ~BIT(25);
-		else
-			reg->l |= BIT(25);
-	}
-	wrmsr_on_cpus(cpu_online_mask, MSR_K7_HWCR, msrs);
-
-	put_online_cpus();
-}
-
-/*
- * Switch on/off core performance boosting.
- *
- * 0=disable
- * 1=enable.
- */
-static void cpb_toggle(bool t)
-{
-	if (!cpb_capable)
-		return;
-
-	if (t && !cpb_enabled) {
-		cpb_enabled = true;
-		_cpb_toggle_msrs(t);
-		printk(KERN_INFO PFX "Core Boosting enabled.\n");
-	} else if (!t && cpb_enabled) {
-		cpb_enabled = false;
-		_cpb_toggle_msrs(t);
-		printk(KERN_INFO PFX "Core Boosting disabled.\n");
-	}
-}
-
-static ssize_t store_cpb(struct cpufreq_policy *policy, const char *buf,
-				 size_t count)
-{
-	int ret = -EINVAL;
-	unsigned long val = 0;
-
-	ret = strict_strtoul(buf, 10, &val);
-	if (!ret && (val == 0 || val == 1) && cpb_capable)
-		cpb_toggle(val);
-	else
-		return -EINVAL;
-
-	return count;
-}
-
-static ssize_t show_cpb(struct cpufreq_policy *policy, char *buf)
-{
-	return sprintf(buf, "%u\n", cpb_enabled);
-}
-
-#define define_one_rw(_name) \
-static struct freq_attr _name = \
-__ATTR(_name, 0644, show_##_name, store_##_name)
-
-define_one_rw(cpb);
-
 static struct freq_attr *powernow_k8_attr[] = {
 	&cpufreq_freq_attr_scaling_available_freqs,
-	&cpb,
 	NULL,
 };
 
@@ -1510,53 +1256,18 @@ static struct cpufreq_driver cpufreq_amd64_driver = {
 	.attr		= powernow_k8_attr,
 };
 
-/*
- * Clear the boost-disable flag on the CPU_DOWN path so that this cpu
- * cannot block the remaining ones from boosting. On the CPU_UP path we
- * simply keep the boost-disable flag in sync with the current global
- * state.
- */
-static int cpb_notify(struct notifier_block *nb, unsigned long action,
-		      void *hcpu)
-{
-	unsigned cpu = (long)hcpu;
-	u32 lo, hi;
-
-	switch (action) {
-	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
-
-		if (!cpb_enabled) {
-			rdmsr_on_cpu(cpu, MSR_K7_HWCR, &lo, &hi);
-			lo |= BIT(25);
-			wrmsr_on_cpu(cpu, MSR_K7_HWCR, lo, hi);
-		}
-		break;
-
-	case CPU_DOWN_PREPARE:
-	case CPU_DOWN_PREPARE_FROZEN:
-		rdmsr_on_cpu(cpu, MSR_K7_HWCR, &lo, &hi);
-		lo &= ~BIT(25);
-		wrmsr_on_cpu(cpu, MSR_K7_HWCR, lo, hi);
-		break;
-
-	default:
-		break;
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block cpb_nb = {
-	.notifier_call		= cpb_notify,
-};
-
 /* driver entry point for init */
 static int __cpuinit powernowk8_init(void)
 {
-	unsigned int i, supported_cpus = 0, cpu;
+	unsigned int i, supported_cpus = 0;
 	int rv;
 
+	if (static_cpu_has(X86_FEATURE_HW_PSTATE)) {
+		pr_warn(PFX "this CPU is not supported anymore, using acpi-cpufreq instead.\n");
+		request_module("acpi-cpufreq");
+		return -ENODEV;
+	}
+
 	if (!x86_match_cpu(powernow_k8_ids))
 		return -ENODEV;
 
@@ -1570,38 +1281,13 @@ static int __cpuinit powernowk8_init(void)
 	if (supported_cpus != num_online_cpus())
 		return -ENODEV;
 
-	printk(KERN_INFO PFX "Found %d %s (%d cpu cores) (" VERSION ")\n",
-		num_online_nodes(), boot_cpu_data.x86_model_id, supported_cpus);
-
-	if (boot_cpu_has(X86_FEATURE_CPB)) {
-
-		cpb_capable = true;
-
-		msrs = msrs_alloc();
-		if (!msrs) {
-			printk(KERN_ERR "%s: Error allocating msrs!\n", __func__);
-			return -ENOMEM;
-		}
-
-		register_cpu_notifier(&cpb_nb);
-
-		rdmsr_on_cpus(cpu_online_mask, MSR_K7_HWCR, msrs);
-
-		for_each_cpu(cpu, cpu_online_mask) {
-			struct msr *reg = per_cpu_ptr(msrs, cpu);
-			cpb_enabled |= !(!!(reg->l & BIT(25)));
-		}
+	rv = cpufreq_register_driver(&cpufreq_amd64_driver);
 
-		printk(KERN_INFO PFX "Core Performance Boosting: %s.\n",
-			(cpb_enabled ? "on" : "off"));
-	}
+	if (!rv)
+		pr_info(PFX "Found %d %s (%d cpu cores) (" VERSION ")\n",
+			num_online_nodes(), boot_cpu_data.x86_model_id,
+			supported_cpus);
 
-	rv = cpufreq_register_driver(&cpufreq_amd64_driver);
-	if (rv < 0 && boot_cpu_has(X86_FEATURE_CPB)) {
-		unregister_cpu_notifier(&cpb_nb);
-		msrs_free(msrs);
-		msrs = NULL;
-	}
 	return rv;
 }
 
@@ -1610,13 +1296,6 @@ static void __exit powernowk8_exit(void)
 {
 	pr_debug("exit\n");
 
-	if (boot_cpu_has(X86_FEATURE_CPB)) {
-		msrs_free(msrs);
-		msrs = NULL;
-
-		unregister_cpu_notifier(&cpb_nb);
-	}
-
 	cpufreq_unregister_driver(&cpufreq_amd64_driver);
 }
 
diff --git a/drivers/cpufreq/powernow-k8.h b/drivers/cpufreq/powernow-k8.h
index 3744d26cdc2..79329d4d5ab 100644
--- a/drivers/cpufreq/powernow-k8.h
+++ b/drivers/cpufreq/powernow-k8.h
@@ -5,24 +5,11 @@
  *  http://www.gnu.org/licenses/gpl.html
  */
 
-enum pstate {
-	HW_PSTATE_INVALID = 0xff,
-	HW_PSTATE_0 = 0,
-	HW_PSTATE_1 = 1,
-	HW_PSTATE_2 = 2,
-	HW_PSTATE_3 = 3,
-	HW_PSTATE_4 = 4,
-	HW_PSTATE_5 = 5,
-	HW_PSTATE_6 = 6,
-	HW_PSTATE_7 = 7,
-};
-
 struct powernow_k8_data {
 	unsigned int cpu;
 
 	u32 numps;  /* number of p-states */
 	u32 batps;  /* number of p-states supported on battery */
-	u32 max_hw_pstate; /* maximum legal hardware pstate */
 
 	/* these values are constant when the PSB is used to determine
 	 * vid/fid pairings, but are modified during the ->target() call
@@ -37,7 +24,6 @@ struct powernow_k8_data {
 	/* keep track of the current fid / vid or pstate */
 	u32 currvid;
 	u32 currfid;
-	enum pstate currpstate;
 
 	/* the powernow_table includes all frequency and vid/fid pairings:
 	 * fid are the lower 8 bits of the index, vid are the upper 8 bits.
@@ -97,23 +83,6 @@ struct powernow_k8_data {
 #define MSR_S_HI_CURRENT_VID      0x0000003f
 #define MSR_C_HI_STP_GNT_BENIGN	  0x00000001
 
-
-/* Hardware Pstate _PSS and MSR definitions */
-#define USE_HW_PSTATE		0x00000080
-#define HW_PSTATE_MASK 		0x00000007
-#define HW_PSTATE_VALID_MASK 	0x80000000
-#define HW_PSTATE_MAX_MASK	0x000000f0
-#define HW_PSTATE_MAX_SHIFT	4
-#define MSR_PSTATE_DEF_BASE 	0xc0010064 /* base of Pstate MSRs */
-#define MSR_PSTATE_STATUS 	0xc0010063 /* Pstate Status MSR */
-#define MSR_PSTATE_CTRL 	0xc0010062 /* Pstate control MSR */
-#define MSR_PSTATE_CUR_LIMIT	0xc0010061 /* pstate current limit MSR */
-
-/* define the two driver architectures */
-#define CPU_OPTERON 0
-#define CPU_HW_PSTATE 1
-
-
 /*
  * There are restrictions frequencies have to follow:
  * - only 1 entry in the low fid table ( <=1.4GHz )
@@ -218,5 +187,4 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid);
 
 static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index);
 
-static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table);
 static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table);
diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c
index 2c9bf269223..3265844839b 100644
--- a/drivers/cpuidle/coupled.c
+++ b/drivers/cpuidle/coupled.c
@@ -678,10 +678,22 @@ static int cpuidle_coupled_cpu_notify(struct notifier_block *nb,
 	int cpu = (unsigned long)hcpu;
 	struct cpuidle_device *dev;
 
+	switch (action & ~CPU_TASKS_FROZEN) {
+	case CPU_UP_PREPARE:
+	case CPU_DOWN_PREPARE:
+	case CPU_ONLINE:
+	case CPU_DEAD:
+	case CPU_UP_CANCELED:
+	case CPU_DOWN_FAILED:
+		break;
+	default:
+		return NOTIFY_OK;
+	}
+
 	mutex_lock(&cpuidle_lock);
 
 	dev = per_cpu(cpuidle_devices, cpu);
-	if (!dev->coupled)
+	if (!dev || !dev->coupled)
 		goto out;
 
 	switch (action & ~CPU_TASKS_FROZEN) {
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 58bf3b1ac9c..87db3877fea 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -18,9 +18,10 @@ static struct cpuidle_driver *cpuidle_curr_driver;
 DEFINE_SPINLOCK(cpuidle_driver_lock);
 int cpuidle_driver_refcount;
 
-static void __cpuidle_register_driver(struct cpuidle_driver *drv)
+static void set_power_states(struct cpuidle_driver *drv)
 {
 	int i;
+
 	/*
 	 * cpuidle driver should set the drv->power_specified bit
 	 * before registering if the driver provides
@@ -35,13 +36,10 @@ static void __cpuidle_register_driver(struct cpuidle_driver *drv)
 	 * an power value of -1.  So we use -2, -3, etc, for other
 	 * c-states.
 	 */
-	if (!drv->power_specified) {
-		for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++)
-			drv->states[i].power_usage = -1 - i;
-	}
+	for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++)
+		drv->states[i].power_usage = -1 - i;
 }
 
-
 /**
  * cpuidle_register_driver - registers a driver
  * @drv: the driver
@@ -59,13 +57,16 @@ int cpuidle_register_driver(struct cpuidle_driver *drv)
 		spin_unlock(&cpuidle_driver_lock);
 		return -EBUSY;
 	}
-	__cpuidle_register_driver(drv);
+
+	if (!drv->power_specified)
+		set_power_states(drv);
+
 	cpuidle_curr_driver = drv;
+
 	spin_unlock(&cpuidle_driver_lock);
 
 	return 0;
 }
-
 EXPORT_SYMBOL_GPL(cpuidle_register_driver);
 
 /**
@@ -96,7 +97,6 @@ void cpuidle_unregister_driver(struct cpuidle_driver *drv)
 
 	spin_unlock(&cpuidle_driver_lock);
 }
-
 EXPORT_SYMBOL_GPL(cpuidle_unregister_driver);
 
 struct cpuidle_driver *cpuidle_driver_ref(void)
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index b6a09ea859b..9b784051ec1 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -88,6 +88,8 @@ static int ladder_select_state(struct cpuidle_driver *drv,
 
 	/* consider promotion */
 	if (last_idx < drv->state_count - 1 &&
+	    !drv->states[last_idx + 1].disabled &&
+	    !dev->states_usage[last_idx + 1].disable &&
 	    last_residency > last_state->threshold.promotion_time &&
 	    drv->states[last_idx + 1].exit_latency <= latency_req) {
 		last_state->stats.promotion_count++;
@@ -100,7 +102,9 @@ static int ladder_select_state(struct cpuidle_driver *drv,
 
 	/* consider demotion */
 	if (last_idx > CPUIDLE_DRIVER_STATE_START &&
-	    drv->states[last_idx].exit_latency > latency_req) {
+	    (drv->states[last_idx].disabled ||
+	    dev->states_usage[last_idx].disable ||
+	    drv->states[last_idx].exit_latency > latency_req)) {
 		int i;
 
 		for (i = last_idx - 1; i > CPUIDLE_DRIVER_STATE_START; i--) {
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 53c8c51d588..93d14070141 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -63,7 +63,7 @@ static void caam_jr_dequeue(unsigned long devarg)
 
 		head = ACCESS_ONCE(jrp->head);
 
-		spin_lock_bh(&jrp->outlock);
+		spin_lock(&jrp->outlock);
 
 		sw_idx = tail = jrp->tail;
 		hw_idx = jrp->out_ring_read_index;
@@ -115,7 +115,7 @@ static void caam_jr_dequeue(unsigned long devarg)
 			jrp->tail = tail;
 		}
 
-		spin_unlock_bh(&jrp->outlock);
+		spin_unlock(&jrp->outlock);
 
 		/* Finally, execute user's callback */
 		usercall(dev, userdesc, userstatus, userarg);
@@ -236,14 +236,14 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
 		return -EIO;
 	}
 
-	spin_lock(&jrp->inplock);
+	spin_lock_bh(&jrp->inplock);
 
 	head = jrp->head;
 	tail = ACCESS_ONCE(jrp->tail);
 
 	if (!rd_reg32(&jrp->rregs->inpring_avail) ||
 	    CIRC_SPACE(head, tail, JOBR_DEPTH) <= 0) {
-		spin_unlock(&jrp->inplock);
+		spin_unlock_bh(&jrp->inplock);
 		dma_unmap_single(dev, desc_dma, desc_size, DMA_TO_DEVICE);
 		return -EBUSY;
 	}
@@ -265,7 +265,7 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
 
 	wr_reg32(&jrp->rregs->inpring_jobadd, 1);
 
-	spin_unlock(&jrp->inplock);
+	spin_unlock_bh(&jrp->inplock);
 
 	return 0;
 }
diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c
index 002888185f1..d216cd3cc56 100644
--- a/drivers/crypto/caam/key_gen.c
+++ b/drivers/crypto/caam/key_gen.c
@@ -120,3 +120,4 @@ u32 gen_split_key(struct device *jrdev, u8 *key_out, int split_key_len,
 
 	return ret;
 }
+EXPORT_SYMBOL(gen_split_key);
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index c9c4befb5a8..df14358d7fa 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -821,8 +821,8 @@ static int hifn_register_rng(struct hifn_device *dev)
 	/*
 	 * We must wait at least 256 Pk_clk cycles between two reads of the rng.
 	 */
-	dev->rng_wait_time	= DIV_ROUND_UP(NSEC_PER_SEC, dev->pk_clk_freq) *
-				  256;
+	dev->rng_wait_time	= DIV_ROUND_UP_ULL(NSEC_PER_SEC,
+						   dev->pk_clk_freq) * 256;
 
 	dev->rng.name		= dev->name;
 	dev->rng.data_present	= hifn_rng_data_present,
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index a8bd0310f8f..aab257403b4 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -42,7 +42,7 @@ MODULE_DESCRIPTION("Niagara2 Crypto driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_MODULE_VERSION);
 
-#define N2_CRA_PRIORITY		300
+#define N2_CRA_PRIORITY		200
 
 static DEFINE_MUTEX(spu_lock);
 
diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c
index 1c307e1b840..ef17e3871c7 100644
--- a/drivers/crypto/ux500/cryp/cryp_core.c
+++ b/drivers/crypto/ux500/cryp/cryp_core.c
@@ -32,7 +32,7 @@
 
 #include <plat/ste_dma40.h>
 
-#include <mach/crypto-ux500.h>
+#include <linux/platform_data/crypto-ux500.h>
 #include <mach/hardware.h>
 
 #include "cryp_p.h"
diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
index 08d5032cb56..08765072a2b 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -31,7 +31,7 @@
 #include <crypto/scatterwalk.h>
 #include <crypto/algapi.h>
 
-#include <mach/crypto-ux500.h>
+#include <linux/platform_data/crypto-ux500.h>
 #include <mach/hardware.h>
 
 #include "hash_alg.h"
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 70c31d43fff..b146d76f04c 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -607,7 +607,7 @@ static int __init devfreq_start_polling(void)
 	mutex_lock(&devfreq_list_lock);
 	polling = false;
 	devfreq_wq = create_freezable_workqueue("devfreq_wq");
-	INIT_DELAYED_WORK_DEFERRABLE(&devfreq_work, devfreq_monitor);
+	INIT_DEFERRABLE_WORK(&devfreq_work, devfreq_monitor);
 	mutex_unlock(&devfreq_list_lock);
 
 	devfreq_monitor(&devfreq_work.work);
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 3934fcc4e00..17d6958342e 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -168,9 +168,9 @@ static void atc_desc_put(struct at_dma_chan *atchan, struct at_desc *desc)
 }
 
 /**
- * atc_desc_chain - build chain adding a descripor
- * @first: address of first descripor of the chain
- * @prev: address of previous descripor of the chain
+ * atc_desc_chain - build chain adding a descriptor
+ * @first: address of first descriptor of the chain
+ * @prev: address of previous descriptor of the chain
  * @desc: descriptor to queue
  *
  * Called from prep_* functions
@@ -661,7 +661,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 			flags);
 
 	if (unlikely(!atslave || !sg_len)) {
-		dev_dbg(chan2dev(chan), "prep_dma_memcpy: length is zero!\n");
+		dev_dbg(chan2dev(chan), "prep_slave_sg: sg length is zero!\n");
 		return NULL;
 	}
 
@@ -689,6 +689,11 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 
 			mem = sg_dma_address(sg);
 			len = sg_dma_len(sg);
+			if (unlikely(!len)) {
+				dev_dbg(chan2dev(chan),
+					"prep_slave_sg: sg(%d) data length is zero\n", i);
+				goto err;
+			}
 			mem_width = 2;
 			if (unlikely(mem & 3 || len & 3))
 				mem_width = 0;
@@ -724,6 +729,11 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 
 			mem = sg_dma_address(sg);
 			len = sg_dma_len(sg);
+			if (unlikely(!len)) {
+				dev_dbg(chan2dev(chan),
+					"prep_slave_sg: sg(%d) data length is zero\n", i);
+				goto err;
+			}
 			mem_width = 2;
 			if (unlikely(mem & 3 || len & 3))
 				mem_width = 0;
@@ -757,6 +767,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 
 err_desc_get:
 	dev_err(chan2dev(chan), "not enough descriptors available\n");
+err:
 	atc_desc_put(atchan, first);
 	return NULL;
 }
@@ -785,7 +796,7 @@ err_out:
 }
 
 /**
- * atc_dma_cyclic_fill_desc - Fill one period decriptor
+ * atc_dma_cyclic_fill_desc - Fill one period descriptor
  */
 static int
 atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc,
diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index 8a6c8e8b294..116e4adffb0 100644
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -11,7 +11,7 @@
 #ifndef AT_HDMAC_REGS_H
 #define	AT_HDMAC_REGS_H
 
-#include <mach/at_hdmac.h>
+#include <linux/platform_data/dma-atmel.h>
 
 #define	AT_DMA_MAX_NR_CHANNELS	8
 
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index c64917ec313..64256f64425 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -26,7 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
-#include <mach/dma.h>
+#include <linux/platform_data/dma-ep93xx.h>
 
 #include "dmaengine.h"
 
@@ -1118,7 +1118,7 @@ fail:
  * @chan: channel
  * @dma_addr: DMA mapped address of the buffer
  * @buf_len: length of the buffer (in bytes)
- * @period_len: lenght of a single period
+ * @period_len: length of a single period
  * @dir: direction of the operation
  * @context: operation context (ignored)
  *
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 8f84761f98b..094437b9d82 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -1015,7 +1015,7 @@ static irqreturn_t fsldma_chan_irq(int irq, void *data)
 	/*
 	 * Programming Error
 	 * The DMA_INTERRUPT async_tx is a NULL transfer, which will
-	 * triger a PE interrupt.
+	 * trigger a PE interrupt.
 	 */
 	if (stat & FSL_DMA_SR_PE) {
 		chan_dbg(chan, "irq: Programming Error INT\n");
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index fcfeb3cd8d3..2a3fab289db 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -28,7 +28,7 @@
 #include <linux/module.h>
 
 #include <asm/irq.h>
-#include <mach/dma.h>
+#include <linux/platform_data/dma-imx.h>
 #include <mach/hardware.h>
 
 #include "dmaengine.h"
@@ -172,7 +172,8 @@ struct imxdma_engine {
 	struct device_dma_parameters	dma_parms;
 	struct dma_device		dma_device;
 	void __iomem			*base;
-	struct clk			*dma_clk;
+	struct clk			*dma_ahb;
+	struct clk			*dma_ipg;
 	spinlock_t			lock;
 	struct imx_dma_2d_config	slots_2d[IMX_DMA_2D_SLOTS];
 	struct imxdma_channel		channel[IMX_DMA_CHANNELS];
@@ -571,8 +572,8 @@ static void imxdma_tasklet(unsigned long data)
 	if (desc->desc.callback)
 		desc->desc.callback(desc->desc.callback_param);
 
-	/* If we are dealing with a cyclic descriptor keep it on ld_active
-	 * and dont mark the descripor as complete.
+	/* If we are dealing with a cyclic descriptor, keep it on ld_active
+	 * and dont mark the descriptor as complete.
 	 * Only in non-cyclic cases it would be marked as complete
 	 */
 	if (imxdma_chan_is_doing_cyclic(imxdmac))
@@ -976,10 +977,20 @@ static int __init imxdma_probe(struct platform_device *pdev)
 		return 0;
 	}
 
-	imxdma->dma_clk = clk_get(NULL, "dma");
-	if (IS_ERR(imxdma->dma_clk))
-		return PTR_ERR(imxdma->dma_clk);
-	clk_enable(imxdma->dma_clk);
+	imxdma->dma_ipg = devm_clk_get(&pdev->dev, "ipg");
+	if (IS_ERR(imxdma->dma_ipg)) {
+		ret = PTR_ERR(imxdma->dma_ipg);
+		goto err_clk;
+	}
+
+	imxdma->dma_ahb = devm_clk_get(&pdev->dev, "ahb");
+	if (IS_ERR(imxdma->dma_ahb)) {
+		ret = PTR_ERR(imxdma->dma_ahb);
+		goto err_clk;
+	}
+
+	clk_prepare_enable(imxdma->dma_ipg);
+	clk_prepare_enable(imxdma->dma_ahb);
 
 	/* reset DMA module */
 	imx_dmav1_writel(imxdma, DCR_DRST, DMA_DCR);
@@ -988,16 +999,14 @@ static int __init imxdma_probe(struct platform_device *pdev)
 		ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", imxdma);
 		if (ret) {
 			dev_warn(imxdma->dev, "Can't register IRQ for DMA\n");
-			kfree(imxdma);
-			return ret;
+			goto err_enable;
 		}
 
 		ret = request_irq(MX1_DMA_ERR, imxdma_err_handler, 0, "DMA", imxdma);
 		if (ret) {
 			dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n");
 			free_irq(MX1_DMA_INT, NULL);
-			kfree(imxdma);
-			return ret;
+			goto err_enable;
 		}
 	}
 
@@ -1094,7 +1103,10 @@ err_init:
 		free_irq(MX1_DMA_INT, NULL);
 		free_irq(MX1_DMA_ERR, NULL);
 	}
-
+err_enable:
+	clk_disable_unprepare(imxdma->dma_ipg);
+	clk_disable_unprepare(imxdma->dma_ahb);
+err_clk:
 	kfree(imxdma);
 	return ret;
 }
@@ -1114,7 +1126,9 @@ static int __exit imxdma_remove(struct platform_device *pdev)
 		free_irq(MX1_DMA_ERR, NULL);
 	}
 
-        kfree(imxdma);
+	clk_disable_unprepare(imxdma->dma_ipg);
+	clk_disable_unprepare(imxdma->dma_ahb);
+	kfree(imxdma);
 
         return 0;
 }
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 1dc2a4ad002..1b781d6ac42 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -38,8 +38,8 @@
 #include <linux/of_device.h>
 
 #include <asm/irq.h>
-#include <mach/sdma.h>
-#include <mach/dma.h>
+#include <linux/platform_data/dma-imx-sdma.h>
+#include <linux/platform_data/dma-imx.h>
 #include <mach/hardware.h>
 
 #include "dmaengine.h"
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 222e907bfaa..02b21d7d38e 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -427,7 +427,7 @@ DMA engine callback Functions*/
  * intel_mid_dma_tx_submit -	callback to submit DMA transaction
  * @tx: dma engine descriptor
  *
- * Submit the DMA trasaction for this descriptor, start if ch idle
+ * Submit the DMA transaction for this descriptor, start if ch idle
  */
 static dma_cookie_t intel_mid_dma_tx_submit(struct dma_async_tx_descriptor *tx)
 {
diff --git a/drivers/dma/intel_mid_dma_regs.h b/drivers/dma/intel_mid_dma_regs.h
index 1bfa9268fea..17b42192ea5 100644
--- a/drivers/dma/intel_mid_dma_regs.h
+++ b/drivers/dma/intel_mid_dma_regs.h
@@ -168,9 +168,9 @@ union intel_mid_dma_cfg_hi {
  * @active_list: current active descriptors
  * @queue: current queued up descriptors
  * @free_list: current free descriptors
- * @slave: dma slave struture
- * @descs_allocated: total number of decsiptors allocated
- * @dma: dma device struture pointer
+ * @slave: dma slave structure
+ * @descs_allocated: total number of descriptors allocated
+ * @dma: dma device structure pointer
  * @busy: bool representing if ch is busy (active txn) or not
  * @in_use: bool representing if ch is in use or not
  * @raw_tfr: raw trf interrupt received
diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h
index 60e675455b6..d2ff3fda0b1 100644
--- a/drivers/dma/ioat/hw.h
+++ b/drivers/dma/ioat/hw.h
@@ -22,7 +22,6 @@
 #define _IOAT_HW_H_
 
 /* PCI Configuration Space Values */
-#define IOAT_PCI_VID            0x8086
 #define IOAT_MMIO_BAR		0
 
 /* CB device ID's */
@@ -31,9 +30,6 @@
 #define IOAT_PCI_DID_SCNB       0x65FF
 #define IOAT_PCI_DID_SNB        0x402F
 
-#define IOAT_PCI_RID            0x00
-#define IOAT_PCI_SVID           0x8086
-#define IOAT_PCI_SID            0x8086
 #define IOAT_VER_1_2            0x12    /* Version 1.2 */
 #define IOAT_VER_2_0            0x20    /* Version 2.0 */
 #define IOAT_VER_3_0            0x30    /* Version 3.0 */
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 8a15cf2163d..07fa48688ba 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -19,7 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/device.h>
 #include <mach/regs-icu.h>
-#include <mach/sram.h>
+#include <linux/platform_data/dma-mmp_tdma.h>
 
 #include "dmaengine.h"
 
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 0b12e68bf79..e362e2b80ef 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -26,7 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/memory.h>
 #include <linux/clk.h>
-#include <plat/mv_xor.h>
+#include <linux/platform_data/dma-mv_xor.h>
 
 #include "dmaengine.h"
 #include "mv_xor.h"
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index ae056182613..2e166277766 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -18,6 +18,8 @@
 #include <linux/spinlock.h>
 
 #include "virt-dma.h"
+
+#include <plat/cpu.h>
 #include <plat/dma.h>
 
 struct omap_dmadev {
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index e4feba6b03c..5d3bbcd279b 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -522,7 +522,7 @@ enum desc_status {
 	/* In the DMAC pool */
 	FREE,
 	/*
-	 * Allocted to some channel during prep_xxx
+	 * Allocated to some channel during prep_xxx
 	 * Also may be sitting on the work_list.
 	 */
 	PREP,
@@ -1567,17 +1567,19 @@ static int pl330_submit_req(void *ch_id, struct pl330_req *r)
 		goto xfer_exit;
 	}
 
-	/* Prefer Secure Channel */
-	if (!_manager_ns(thrd))
-		r->cfg->nonsecure = 0;
-	else
-		r->cfg->nonsecure = 1;
 
 	/* Use last settings, if not provided */
-	if (r->cfg)
+	if (r->cfg) {
+		/* Prefer Secure Channel */
+		if (!_manager_ns(thrd))
+			r->cfg->nonsecure = 0;
+		else
+			r->cfg->nonsecure = 1;
+
 		ccr = _prepare_ccr(r->cfg);
-	else
+	} else {
 		ccr = readl(regs + CC(thrd->id));
+	}
 
 	/* If this req doesn't have valid xfer settings */
 	if (!_is_valid(ccr)) {
@@ -2928,6 +2930,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 		num_chan = max_t(int, pi->pcfg.num_peri, pi->pcfg.num_chan);
 
 	pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL);
+	if (!pdmac->peripherals) {
+		ret = -ENOMEM;
+		dev_err(&adev->dev, "unable to allocate pdmac->peripherals\n");
+		goto probe_err5;
+	}
 
 	for (i = 0; i < num_chan; i++) {
 		pch = &pdmac->peripherals[i];
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index ced98826684..f72348d0bc4 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -4446,7 +4446,7 @@ static int __devinit ppc440spe_adma_probe(struct platform_device *ofdev)
 		ret = -ENOMEM;
 		goto err_dma_alloc;
 	}
-	dev_dbg(&ofdev->dev, "allocted descriptor pool virt 0x%p phys 0x%llx\n",
+	dev_dbg(&ofdev->dev, "allocated descriptor pool virt 0x%p phys 0x%llx\n",
 		adev->dma_desc_pool_virt, (u64)adev->dma_desc_pool);
 
 	regs = ioremap(res.start, resource_size(&res));
diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h
index 51e8e5396e9..6d47373f3f5 100644
--- a/drivers/dma/ste_dma40_ll.h
+++ b/drivers/dma/ste_dma40_ll.h
@@ -202,7 +202,7 @@
 /* LLI related structures */
 
 /**
- * struct d40_phy_lli - The basic configration register for each physical
+ * struct d40_phy_lli - The basic configuration register for each physical
  * channel.
  *
  * @reg_cfg: The configuration register.
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index d52dbc6c54a..4708467e4d8 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -201,7 +201,7 @@ struct tegra_dma {
 	struct clk			*dma_clk;
 	spinlock_t			global_lock;
 	void __iomem			*base_addr;
-	struct tegra_dma_chip_data	*chip_data;
+	const struct tegra_dma_chip_data *chip_data;
 
 	/* Some register need to be cache before suspend */
 	u32				reg_gen;
@@ -1119,15 +1119,21 @@ struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
 static int tegra_dma_alloc_chan_resources(struct dma_chan *dc)
 {
 	struct tegra_dma_channel *tdc = to_tegra_dma_chan(dc);
+	struct tegra_dma *tdma = tdc->tdma;
+	int ret;
 
 	dma_cookie_init(&tdc->dma_chan);
 	tdc->config_init = false;
-	return 0;
+	ret = clk_prepare_enable(tdma->dma_clk);
+	if (ret < 0)
+		dev_err(tdc2dev(tdc), "clk_prepare_enable failed: %d\n", ret);
+	return ret;
 }
 
 static void tegra_dma_free_chan_resources(struct dma_chan *dc)
 {
 	struct tegra_dma_channel *tdc = to_tegra_dma_chan(dc);
+	struct tegra_dma *tdma = tdc->tdma;
 
 	struct tegra_dma_desc *dma_desc;
 	struct tegra_dma_sg_req *sg_req;
@@ -1163,17 +1169,18 @@ static void tegra_dma_free_chan_resources(struct dma_chan *dc)
 		list_del(&sg_req->node);
 		kfree(sg_req);
 	}
+	clk_disable_unprepare(tdma->dma_clk);
 }
 
 /* Tegra20 specific DMA controller information */
-static struct tegra_dma_chip_data tegra20_dma_chip_data = {
+static const struct tegra_dma_chip_data tegra20_dma_chip_data = {
 	.nr_channels		= 16,
 	.max_dma_count		= 1024UL * 64,
 };
 
 #if defined(CONFIG_OF)
 /* Tegra30 specific DMA controller information */
-static struct tegra_dma_chip_data tegra30_dma_chip_data = {
+static const struct tegra_dma_chip_data tegra30_dma_chip_data = {
 	.nr_channels		= 32,
 	.max_dma_count		= 1024UL * 64,
 };
@@ -1197,7 +1204,7 @@ static int __devinit tegra_dma_probe(struct platform_device *pdev)
 	struct tegra_dma *tdma;
 	int ret;
 	int i;
-	struct tegra_dma_chip_data *cdata = NULL;
+	const struct tegra_dma_chip_data *cdata = NULL;
 
 	if (pdev->dev.of_node) {
 		const struct of_device_id *match;
@@ -1255,6 +1262,13 @@ static int __devinit tegra_dma_probe(struct platform_device *pdev)
 		}
 	}
 
+	/* Enable clock before accessing registers */
+	ret = clk_prepare_enable(tdma->dma_clk);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", ret);
+		goto err_pm_disable;
+	}
+
 	/* Reset DMA controller */
 	tegra_periph_reset_assert(tdma->dma_clk);
 	udelay(2);
@@ -1265,6 +1279,8 @@ static int __devinit tegra_dma_probe(struct platform_device *pdev)
 	tdma_write(tdma, TEGRA_APBDMA_CONTROL, 0);
 	tdma_write(tdma, TEGRA_APBDMA_IRQ_MASK_SET, 0xFFFFFFFFul);
 
+	clk_disable_unprepare(tdma->dma_clk);
+
 	INIT_LIST_HEAD(&tdma->dma_dev.channels);
 	for (i = 0; i < cdata->nr_channels; i++) {
 		struct tegra_dma_channel *tdc = &tdma->channels[i];
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 616d90bcb3a..90f0b730e9b 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -199,6 +199,36 @@ void *edac_align_ptr(void **p, unsigned size, int n_elems)
 	return (void *)(((unsigned long)ptr) + align - r);
 }
 
+static void _edac_mc_free(struct mem_ctl_info *mci)
+{
+	int i, chn, row;
+	struct csrow_info *csr;
+	const unsigned int tot_dimms = mci->tot_dimms;
+	const unsigned int tot_channels = mci->num_cschannel;
+	const unsigned int tot_csrows = mci->nr_csrows;
+
+	if (mci->dimms) {
+		for (i = 0; i < tot_dimms; i++)
+			kfree(mci->dimms[i]);
+		kfree(mci->dimms);
+	}
+	if (mci->csrows) {
+		for (row = 0; row < tot_csrows; row++) {
+			csr = mci->csrows[row];
+			if (csr) {
+				if (csr->channels) {
+					for (chn = 0; chn < tot_channels; chn++)
+						kfree(csr->channels[chn]);
+					kfree(csr->channels);
+				}
+				kfree(csr);
+			}
+		}
+		kfree(mci->csrows);
+	}
+	kfree(mci);
+}
+
 /**
  * edac_mc_alloc: Allocate and partially fill a struct mem_ctl_info structure
  * @mc_num:		Memory controller number
@@ -413,24 +443,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
 	return mci;
 
 error:
-	if (mci->dimms) {
-		for (i = 0; i < tot_dimms; i++)
-			kfree(mci->dimms[i]);
-		kfree(mci->dimms);
-	}
-	if (mci->csrows) {
-		for (chn = 0; chn < tot_channels; chn++) {
-			csr = mci->csrows[chn];
-			if (csr) {
-				for (chn = 0; chn < tot_channels; chn++)
-					kfree(csr->channels[chn]);
-				kfree(csr);
-			}
-			kfree(mci->csrows[i]);
-		}
-		kfree(mci->csrows);
-	}
-	kfree(mci);
+	_edac_mc_free(mci);
 
 	return NULL;
 }
@@ -445,6 +458,14 @@ void edac_mc_free(struct mem_ctl_info *mci)
 {
 	edac_dbg(1, "\n");
 
+	/* If we're not yet registered with sysfs free only what was allocated
+	 * in edac_mc_alloc().
+	 */
+	if (!device_is_registered(&mci->dev)) {
+		_edac_mc_free(mci);
+		return;
+	}
+
 	/* the mci instance is freed here, when the sysfs object is dropped */
 	edac_unregister_sysfs(mci);
 }
@@ -538,7 +559,7 @@ static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec)
 		return;
 
 	INIT_DELAYED_WORK(&mci->work, edac_mc_workq_function);
-	queue_delayed_work(edac_workqueue, &mci->work, msecs_to_jiffies(msec));
+	mod_delayed_work(edac_workqueue, &mci->work, msecs_to_jiffies(msec));
 }
 
 /*
@@ -578,21 +599,6 @@ void edac_mc_reset_delay_period(int value)
 
 	mutex_lock(&mem_ctls_mutex);
 
-	/* scan the list and turn off all workq timers, doing so under lock
-	 */
-	list_for_each(item, &mc_devices) {
-		mci = list_entry(item, struct mem_ctl_info, link);
-
-		if (mci->op_state == OP_RUNNING_POLL)
-			cancel_delayed_work(&mci->work);
-	}
-
-	mutex_unlock(&mem_ctls_mutex);
-
-
-	/* re-walk the list, and reset the poll delay */
-	mutex_lock(&mem_ctls_mutex);
-
 	list_for_each(item, &mc_devices) {
 		mci = list_entry(item, struct mem_ctl_info, link);
 
diff --git a/drivers/edac/i3200_edac.c b/drivers/edac/i3200_edac.c
index 47180a08eda..b6653a6fc5d 100644
--- a/drivers/edac/i3200_edac.c
+++ b/drivers/edac/i3200_edac.c
@@ -391,7 +391,7 @@ static int i3200_probe1(struct pci_dev *pdev, int dev_idx)
 		for (j = 0; j < nr_channels; j++) {
 			struct dimm_info *dimm = csrow->channels[j]->dimm;
 
-			dimm->nr_pages = nr_pages / nr_channels;
+			dimm->nr_pages = nr_pages;
 			dimm->grain = nr_pages << PAGE_SHIFT;
 			dimm->mtype = MEM_DDR2;
 			dimm->dtype = DEV_UNKNOWN;
diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index 39c63757c2a..6a49dd00b81 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -1012,6 +1012,10 @@ static void handle_channel(struct i5000_pvt *pvt, int slot, int channel,
 			/* add the number of COLUMN bits */
 			addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr);
 
+			/* Dual-rank memories have twice the size */
+			if (dinfo->dual_rank)
+				addrBits++;
+
 			addrBits += 6;	/* add 64 bits per DIMM */
 			addrBits -= 20;	/* divide by 2^^20 */
 			addrBits -= 3;	/* 8 bits per bytes */
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index f3b1f9fafa4..5715b7c2c51 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -513,7 +513,8 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 {
 	struct sbridge_pvt *pvt = mci->pvt_info;
 	struct dimm_info *dimm;
-	int i, j, banks, ranks, rows, cols, size, npages;
+	unsigned i, j, banks, ranks, rows, cols, npages;
+	u64 size;
 	u32 reg;
 	enum edac_type mode;
 	enum mem_type mtype;
@@ -585,10 +586,10 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 				cols = numcol(mtr);
 
 				/* DDR3 has 8 I/O banks */
-				size = (rows * cols * banks * ranks) >> (20 - 3);
+				size = ((u64)rows * cols * banks * ranks) >> (20 - 3);
 				npages = MiB_TO_PAGES(size);
 
-				edac_dbg(0, "mc#%d: channel %d, dimm %d, %d Mb (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
+				edac_dbg(0, "mc#%d: channel %d, dimm %d, %Ld Mb (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
 					 pvt->sbridge_dev->mc, i, j,
 					 size, npages,
 					 banks, ranks, rows, cols);
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index e175c8ed4ec..07122a9ef36 100644
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -21,6 +21,12 @@ config EXTCON_GPIO
 	  Say Y here to enable GPIO based extcon support. Note that GPIO
 	  extcon supports single state per extcon instance.
 
+config EXTCON_ADC_JACK
+	tristate "ADC Jack extcon support"
+	depends on IIO
+	help
+	  Say Y here to enable extcon device driver based on ADC values.
+
 config EXTCON_MAX77693
 	tristate "MAX77693 EXTCON Support"
 	depends on MFD_MAX77693
@@ -41,7 +47,7 @@ config EXTCON_MAX8997
 
 config EXTCON_ARIZONA
 	tristate "Wolfson Arizona EXTCON support"
-	depends on MFD_ARIZONA
+	depends on MFD_ARIZONA && INPUT
 	help
 	  Say Y here to enable support for external accessory detection
 	  with Wolfson Arizona devices. These are audio CODECs with
diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile
index 88961b33234..f98a3c4d46e 100644
--- a/drivers/extcon/Makefile
+++ b/drivers/extcon/Makefile
@@ -2,8 +2,9 @@
 # Makefile for external connector class (extcon) devices
 #
 
-obj-$(CONFIG_EXTCON)		+= extcon_class.o
-obj-$(CONFIG_EXTCON_GPIO)	+= extcon_gpio.o
+obj-$(CONFIG_EXTCON)		+= extcon-class.o
+obj-$(CONFIG_EXTCON_GPIO)	+= extcon-gpio.o
+obj-$(CONFIG_EXTCON_ADC_JACK)	+= extcon-adc-jack.o
 obj-$(CONFIG_EXTCON_MAX77693)	+= extcon-max77693.o
 obj-$(CONFIG_EXTCON_MAX8997)	+= extcon-max8997.o
 obj-$(CONFIG_EXTCON_ARIZONA)	+= extcon-arizona.o
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
new file mode 100644
index 00000000000..725eb5aa8d8
--- /dev/null
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -0,0 +1,198 @@
+/*
+ * drivers/extcon/extcon-adc-jack.c
+ *
+ * Analog Jack extcon driver with ADC-based detection capability.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * Modified for calling to IIO to get adc by <anish.singh@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/iio/consumer.h>
+#include <linux/extcon/extcon-adc-jack.h>
+#include <linux/extcon.h>
+
+/**
+ * struct adc_jack_data - internal data for adc_jack device driver
+ * @edev        - extcon device.
+ * @cable_names - list of supported cables.
+ * @num_cables  - size of cable_names.
+ * @adc_conditions       - list of adc value conditions.
+ * @num_conditions       - size of adc_conditions.
+ * @irq         - irq number of attach/detach event (0 if not exist).
+ * @handling_delay      - interrupt handler will schedule extcon event
+ *                      handling at handling_delay jiffies.
+ * @handler     - extcon event handler called by interrupt handler.
+ * @chan       - iio channel being queried.
+ */
+struct adc_jack_data {
+	struct extcon_dev edev;
+
+	const char **cable_names;
+	int num_cables;
+	struct adc_jack_cond *adc_conditions;
+	int num_conditions;
+
+	int irq;
+	unsigned long handling_delay; /* in jiffies */
+	struct delayed_work handler;
+
+	struct iio_channel *chan;
+};
+
+static void adc_jack_handler(struct work_struct *work)
+{
+	struct adc_jack_data *data = container_of(to_delayed_work(work),
+			struct adc_jack_data,
+			handler);
+	u32 state = 0;
+	int ret, adc_val;
+	int i;
+
+	ret = iio_read_channel_raw(data->chan, &adc_val);
+	if (ret < 0) {
+		dev_err(data->edev.dev, "read channel() error: %d\n", ret);
+		return;
+	}
+
+	/* Get state from adc value with adc_conditions */
+	for (i = 0; i < data->num_conditions; i++) {
+		struct adc_jack_cond *def = &data->adc_conditions[i];
+		if (!def->state)
+			break;
+		if (def->min_adc <= adc_val && def->max_adc >= adc_val) {
+			state = def->state;
+			break;
+		}
+	}
+	/* if no def has met, it means state = 0 (no cables attached) */
+
+	extcon_set_state(&data->edev, state);
+}
+
+static irqreturn_t adc_jack_irq_thread(int irq, void *_data)
+{
+	struct adc_jack_data *data = _data;
+
+	schedule_delayed_work(&data->handler, data->handling_delay);
+	return IRQ_HANDLED;
+}
+
+static int __devinit adc_jack_probe(struct platform_device *pdev)
+{
+	struct adc_jack_data *data;
+	struct adc_jack_pdata *pdata = pdev->dev.platform_data;
+	int i, err = 0;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->edev.name = pdata->name;
+
+	if (!pdata->cable_names) {
+		err = -EINVAL;
+		dev_err(&pdev->dev, "error: cable_names not defined.\n");
+		goto out;
+	}
+
+	data->edev.supported_cable = pdata->cable_names;
+
+	/* Check the length of array and set num_cables */
+	for (i = 0; data->edev.supported_cable[i]; i++)
+		;
+	if (i == 0 || i > SUPPORTED_CABLE_MAX) {
+		err = -EINVAL;
+		dev_err(&pdev->dev, "error: pdata->cable_names size = %d\n",
+				i - 1);
+		goto out;
+	}
+	data->num_cables = i;
+
+	if (!pdata->adc_conditions ||
+			!pdata->adc_conditions[0].state) {
+		err = -EINVAL;
+		dev_err(&pdev->dev, "error: adc_conditions not defined.\n");
+		goto out;
+	}
+	data->adc_conditions = pdata->adc_conditions;
+
+	/* Check the length of array and set num_conditions */
+	for (i = 0; data->adc_conditions[i].state; i++)
+		;
+	data->num_conditions = i;
+
+	data->chan = iio_channel_get(dev_name(&pdev->dev),
+			pdata->consumer_channel);
+	if (IS_ERR(data->chan)) {
+		err = PTR_ERR(data->chan);
+		goto out;
+	}
+
+	data->handling_delay = msecs_to_jiffies(pdata->handling_delay_ms);
+
+	INIT_DEFERRABLE_WORK(&data->handler, adc_jack_handler);
+
+	platform_set_drvdata(pdev, data);
+
+	err = extcon_dev_register(&data->edev, &pdev->dev);
+	if (err)
+		goto out;
+
+	data->irq = platform_get_irq(pdev, 0);
+	if (!data->irq) {
+		dev_err(&pdev->dev, "platform_get_irq failed\n");
+		err = -ENODEV;
+		goto err_irq;
+	}
+
+	err = request_any_context_irq(data->irq, adc_jack_irq_thread,
+			pdata->irq_flags, pdata->name, data);
+
+	if (err) {
+		dev_err(&pdev->dev, "error: irq %d\n", data->irq);
+		err = -EINVAL;
+		goto err_irq;
+	}
+
+	goto out;
+
+err_irq:
+	extcon_dev_unregister(&data->edev);
+out:
+	return err;
+}
+
+static int __devexit adc_jack_remove(struct platform_device *pdev)
+{
+	struct adc_jack_data *data = platform_get_drvdata(pdev);
+
+	free_irq(data->irq, data);
+	cancel_work_sync(&data->handler.work);
+	extcon_dev_unregister(&data->edev);
+
+	return 0;
+}
+
+static struct platform_driver adc_jack_driver = {
+	.probe          = adc_jack_probe,
+	.remove         = __devexit_p(adc_jack_remove),
+	.driver         = {
+		.name   = "adc-jack",
+		.owner  = THIS_MODULE,
+	},
+};
+
+module_platform_driver(adc_jack_driver);
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 427a289f32a..cdab9e59829 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
+#include <linux/input.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
@@ -30,11 +31,14 @@
 #include <linux/mfd/arizona/pdata.h>
 #include <linux/mfd/arizona/registers.h>
 
+#define ARIZONA_NUM_BUTTONS 6
+
 struct arizona_extcon_info {
 	struct device *dev;
 	struct arizona *arizona;
 	struct mutex lock;
 	struct regulator *micvdd;
+	struct input_dev *input;
 
 	int micd_mode;
 	const struct arizona_micd_config *micd_modes;
@@ -54,6 +58,18 @@ static const struct arizona_micd_config micd_default_modes[] = {
 	{ 0,                  2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 },
 };
 
+static struct {
+	u16 status;
+	int report;
+} arizona_lvl_to_key[ARIZONA_NUM_BUTTONS] = {
+	{  0x1, BTN_0 },
+	{  0x2, BTN_1 },
+	{  0x4, BTN_2 },
+	{  0x8, BTN_3 },
+	{ 0x10, BTN_4 },
+	{ 0x20, BTN_5 },
+};
+
 #define ARIZONA_CABLE_MECHANICAL 0
 #define ARIZONA_CABLE_MICROPHONE 1
 #define ARIZONA_CABLE_HEADPHONE  2
@@ -133,6 +149,7 @@ static void arizona_stop_mic(struct arizona_extcon_info *info)
 
 	if (change) {
 		regulator_disable(info->micvdd);
+		pm_runtime_mark_last_busy(info->dev);
 		pm_runtime_put_autosuspend(info->dev);
 	}
 }
@@ -141,8 +158,8 @@ static irqreturn_t arizona_micdet(int irq, void *data)
 {
 	struct arizona_extcon_info *info = data;
 	struct arizona *arizona = info->arizona;
-	unsigned int val;
-	int ret;
+	unsigned int val, lvl;
+	int ret, i;
 
 	mutex_lock(&info->lock);
 
@@ -219,13 +236,22 @@ static irqreturn_t arizona_micdet(int irq, void *data)
 
 	/*
 	 * If we're still detecting and we detect a short then we've
-	 * got a headphone.  Otherwise it's a button press, the
-	 * button reporting is stubbed out for now.
+	 * got a headphone.  Otherwise it's a button press.
 	 */
 	if (val & 0x3fc) {
 		if (info->mic) {
 			dev_dbg(arizona->dev, "Mic button detected\n");
 
+			lvl = val & ARIZONA_MICD_LVL_MASK;
+			lvl >>= ARIZONA_MICD_LVL_SHIFT;
+
+			for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+				if (lvl & arizona_lvl_to_key[i].status)
+					input_report_key(info->input,
+							 arizona_lvl_to_key[i].report,
+							 1);
+			input_sync(info->input);
+
 		} else if (info->detecting) {
 			dev_dbg(arizona->dev, "Headphone detected\n");
 			info->detecting = false;
@@ -244,6 +270,10 @@ static irqreturn_t arizona_micdet(int irq, void *data)
 		}
 	} else {
 		dev_dbg(arizona->dev, "Mic button released\n");
+		for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+			input_report_key(info->input,
+					 arizona_lvl_to_key[i].report, 0);
+		input_sync(info->input);
 	}
 
 handled:
@@ -258,7 +288,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 	struct arizona_extcon_info *info = data;
 	struct arizona *arizona = info->arizona;
 	unsigned int val;
-	int ret;
+	int ret, i;
 
 	pm_runtime_get_sync(info->dev);
 
@@ -288,6 +318,11 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 
 		arizona_stop_mic(info);
 
+		for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+			input_report_key(info->input,
+					 arizona_lvl_to_key[i].report, 0);
+		input_sync(info->input);
+
 		ret = extcon_update_state(&info->edev, 0xffffffff, 0);
 		if (ret != 0)
 			dev_err(arizona->dev, "Removal report failed: %d\n",
@@ -307,13 +342,13 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
 	struct arizona_pdata *pdata;
 	struct arizona_extcon_info *info;
-	int ret, mode;
+	int ret, mode, i;
 
 	pdata = dev_get_platdata(arizona->dev);
 
 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
 	if (!info) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+		dev_err(&pdev->dev, "Failed to allocate memory\n");
 		ret = -ENOMEM;
 		goto err;
 	}
@@ -350,7 +385,7 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
 
 	ret = extcon_dev_register(&info->edev, arizona->dev);
 	if (ret < 0) {
-		dev_err(arizona->dev, "extcon_dev_regster() failed: %d\n",
+		dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
 			ret);
 		goto err;
 	}
@@ -382,6 +417,20 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
 
 	arizona_extcon_set_mode(info, 0);
 
+	info->input = input_allocate_device();
+	if (!info->input) {
+		dev_err(arizona->dev, "Can't allocate input dev\n");
+		ret = -ENOMEM;
+		goto err_register;
+	}
+
+	for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+		input_set_capability(info->input, EV_KEY,
+				     arizona_lvl_to_key[i].report);
+	info->input->name = "Headset";
+	info->input->phys = "arizona/extcon";
+	info->input->dev.parent = &pdev->dev;
+
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_idle(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
@@ -391,7 +440,7 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
 			ret);
-		goto err_register;
+		goto err_input;
 	}
 
 	ret = arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 1);
@@ -434,10 +483,23 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
 	regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
 			   ARIZONA_JD1_ENA, ARIZONA_JD1_ENA);
 
+	ret = regulator_allow_bypass(info->micvdd, true);
+	if (ret != 0)
+		dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n",
+			 ret);
+
 	pm_runtime_put(&pdev->dev);
 
+	ret = input_register_device(info->input);
+	if (ret) {
+		dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
+		goto err_micdet;
+	}
+
 	return 0;
 
+err_micdet:
+	arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
 err_fall_wake:
 	arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_FALL, 0);
 err_fall:
@@ -446,6 +508,8 @@ err_rise_wake:
 	arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 0);
 err_rise:
 	arizona_free_irq(arizona, ARIZONA_IRQ_JD_RISE, info);
+err_input:
+	input_free_device(info->input);
 err_register:
 	pm_runtime_disable(&pdev->dev);
 	extcon_dev_unregister(&info->edev);
@@ -468,6 +532,7 @@ static int __devexit arizona_extcon_remove(struct platform_device *pdev)
 	regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
 			   ARIZONA_JD1_ENA, 0);
 	arizona_clk32k_disable(arizona);
+	input_unregister_device(info->input);
 	extcon_dev_unregister(&info->edev);
 
 	return 0;
diff --git a/drivers/extcon/extcon_class.c b/drivers/extcon/extcon-class.c
index f6419f9db76..946a3188b2b 100644
--- a/drivers/extcon/extcon_class.c
+++ b/drivers/extcon/extcon-class.c
@@ -30,6 +30,7 @@
 #include <linux/err.h>
 #include <linux/extcon.h>
 #include <linux/slab.h>
+#include <linux/sysfs.h>
 
 /*
  * extcon_cable_name suggests the standard cable names for commonly used
@@ -442,7 +443,7 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val,
 
 /**
  * extcon_register_interest() - Register a notifier for a state change of a
- *			      specific cable, not a entier set of cables of a
+ *			      specific cable, not an entier set of cables of a
  *			      extcon device.
  * @obj:	an empty extcon_specific_cable_nb object to be returned.
  * @extcon_name:	the name of extcon device.
@@ -498,7 +499,7 @@ int extcon_unregister_interest(struct extcon_specific_cable_nb *obj)
 }
 
 /**
- * extcon_register_notifier() - Register a notifee to get notified by
+ * extcon_register_notifier() - Register a notifiee to get notified by
  *			      any attach status changes from the extcon.
  * @edev:	the extcon device.
  * @nb:		a notifier block to be registered.
@@ -515,7 +516,7 @@ int extcon_register_notifier(struct extcon_dev *edev,
 EXPORT_SYMBOL_GPL(extcon_register_notifier);
 
 /**
- * extcon_unregister_notifier() - Unregister a notifee from the extcon device.
+ * extcon_unregister_notifier() - Unregister a notifiee from the extcon device.
  * @edev:	the extcon device.
  * @nb:		a registered notifier block to be unregistered.
  */
@@ -673,10 +674,12 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 			cable->attr_g.name = str;
 			cable->attr_g.attrs = cable->attrs;
 
+			sysfs_attr_init(&cable->attr_name.attr);
 			cable->attr_name.attr.name = "name";
 			cable->attr_name.attr.mode = 0444;
 			cable->attr_name.show = cable_name_show;
 
+			sysfs_attr_init(&cable->attr_state.attr);
 			cable->attr_state.attr.name = "state";
 			cable->attr_state.attr.mode = 0644;
 			cable->attr_state.show = cable_state_show;
@@ -722,6 +725,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 				goto err_muex;
 			}
 			strcpy(name, buf);
+			sysfs_attr_init(&edev->d_attrs_muex[index].attr);
 			edev->d_attrs_muex[index].attr.name = name;
 			edev->d_attrs_muex[index].attr.mode = 0000;
 			edev->attrs_muex[index] = &edev->d_attrs_muex[index]
@@ -802,7 +806,7 @@ EXPORT_SYMBOL_GPL(extcon_dev_register);
 
 /**
  * extcon_dev_unregister() - Unregister the extcon device.
- * @edev:	the extcon device instance to be unregitered.
+ * @edev:	the extcon device instance to be unregistered.
  *
  * Note that this does not call kfree(edev) because edev was not allocated
  * by this class.
diff --git a/drivers/extcon/extcon_gpio.c b/drivers/extcon/extcon-gpio.c
index fe3db45fa83..3cc152e690b 100644
--- a/drivers/extcon/extcon_gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -107,7 +107,8 @@ static int __devinit gpio_extcon_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	ret = gpio_request_one(extcon_data->gpio, GPIOF_DIR_IN, pdev->name);
+	ret = devm_gpio_request_one(&pdev->dev, extcon_data->gpio, GPIOF_DIR_IN,
+				    pdev->name);
 	if (ret < 0)
 		goto err;
 
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 920a609b2c3..e21387e2da5 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -356,7 +356,7 @@ static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info,
 		extcon_set_cable_state(info->edev, "MHL", attached);
 		break;
 	default:
-		dev_err(info->dev, "faild to detect %s accessory\n",
+		dev_err(info->dev, "failed to detect %s accessory\n",
 			attached ? "attached" : "detached");
 		dev_err(info->dev, "- adc:0x%x, adclow:0x%x, adc1k:0x%x\n",
 			adc, adclow, adc1k);
@@ -548,7 +548,7 @@ static void max77693_muic_irq_work(struct work_struct *work)
 		curr_adc = info->status[0] & STATUS1_ADC_MASK;
 		curr_adc >>= STATUS1_ADC_SHIFT;
 
-		/* Check accossory state which is either detached or attached */
+		/* Check accessory state which is either detached or attached */
 		if (curr_adc == MAX77693_MUIC_ADC_OPEN)
 			attached = false;
 
@@ -564,7 +564,7 @@ static void max77693_muic_irq_work(struct work_struct *work)
 		curr_chg_type = info->status[1] & STATUS2_CHGTYP_MASK;
 		curr_chg_type >>= STATUS2_CHGTYP_SHIFT;
 
-		/* Check charger accossory state which
+		/* Check charger accessory state which
 		   is either detached or attached */
 		if (curr_chg_type == MAX77693_CHARGER_TYPE_NONE)
 			attached = false;
@@ -669,13 +669,18 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
 	}
 	info->dev = &pdev->dev;
 	info->max77693 = max77693;
-	info->max77693->regmap_muic = regmap_init_i2c(info->max77693->muic,
-					 &max77693_muic_regmap_config);
-	if (IS_ERR(info->max77693->regmap_muic)) {
-		ret = PTR_ERR(info->max77693->regmap_muic);
-		dev_err(max77693->dev,
-			"failed to allocate register map: %d\n", ret);
-		goto err_regmap;
+	if (info->max77693->regmap_muic)
+		dev_dbg(&pdev->dev, "allocate register map\n");
+	else {
+		info->max77693->regmap_muic = devm_regmap_init_i2c(
+						info->max77693->muic,
+						&max77693_muic_regmap_config);
+		if (IS_ERR(info->max77693->regmap_muic)) {
+			ret = PTR_ERR(info->max77693->regmap_muic);
+			dev_err(max77693->dev,
+				"failed to allocate register map: %d\n", ret);
+			goto err_regmap;
+		}
 	}
 	platform_set_drvdata(pdev, info);
 	mutex_init(&info->mutex);
@@ -694,7 +699,7 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
 
 		ret = request_threaded_irq(virq, NULL,
 				max77693_muic_irq_handler,
-				0, muic_irq->name, info);
+				IRQF_ONESHOT, muic_irq->name, info);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"failed: irq request (IRQ: %d,"
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 47408e802ab..d10c9873dd9 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -435,12 +435,23 @@ efivar_attr_read(struct efivar_entry *entry, char *buf)
 	if (status != EFI_SUCCESS)
 		return -EIO;
 
-	if (var->Attributes & 0x1)
+	if (var->Attributes & EFI_VARIABLE_NON_VOLATILE)
 		str += sprintf(str, "EFI_VARIABLE_NON_VOLATILE\n");
-	if (var->Attributes & 0x2)
+	if (var->Attributes & EFI_VARIABLE_BOOTSERVICE_ACCESS)
 		str += sprintf(str, "EFI_VARIABLE_BOOTSERVICE_ACCESS\n");
-	if (var->Attributes & 0x4)
+	if (var->Attributes & EFI_VARIABLE_RUNTIME_ACCESS)
 		str += sprintf(str, "EFI_VARIABLE_RUNTIME_ACCESS\n");
+	if (var->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD)
+		str += sprintf(str, "EFI_VARIABLE_HARDWARE_ERROR_RECORD\n");
+	if (var->Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
+		str += sprintf(str,
+			"EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS\n");
+	if (var->Attributes &
+			EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
+		str += sprintf(str,
+			"EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS\n");
+	if (var->Attributes & EFI_VARIABLE_APPEND_WRITE)
+		str += sprintf(str, "EFI_VARIABLE_APPEND_WRITE\n");
 	return str - buf;
 }
 
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b16c8a72a2e..8382dc83292 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -82,7 +82,7 @@ config GPIO_GENERIC
 
 config GPIO_DA9052
 	tristate "Dialog DA9052 GPIO"
-	depends on PMIC_DA9052 && BROKEN
+	depends on PMIC_DA9052
 	help
 	  Say yes here to enable the GPIO driver for the DA9052 chip.
 
@@ -183,6 +183,12 @@ config GPIO_STA2X11
 	  Say yes here to support the STA2x11/ConneXt GPIO device.
 	  The GPIO module has 128 GPIO pins with alternate functions.
 
+config GPIO_VT8500
+	bool "VIA/Wondermedia SoC GPIO Support"
+	depends on ARCH_VT8500
+	help
+	  Say yes here to support the VT8500/WM8505/WM8650 GPIO controller.
+
 config GPIO_XILINX
 	bool "Xilinx GPIO support"
 	depends on PPC_OF || MICROBLAZE
@@ -294,7 +300,7 @@ config GPIO_MAX732X_IRQ
 
 config GPIO_MC9S08DZ60
 	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
-	depends on I2C && MACH_MX35_3DS
+	depends on I2C=y && MACH_MX35_3DS
 	help
 	  Select this to enable the MC9S08DZ60 GPIO driver
 
@@ -324,6 +330,7 @@ config GPIO_PCA953X_IRQ
 config GPIO_PCF857X
 	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 	depends on I2C
+	select IRQ_DOMAIN
 	help
 	  Say yes here to provide access to most "quasi-bidirectional" I2C
 	  GPIO expanders used for additional digital outputs or inputs.
@@ -444,6 +451,17 @@ config GPIO_ADP5588_IRQ
 	  Say yes here to enable the adp5588 to be used as an interrupt
 	  controller. It requires the driver to be built in the kernel.
 
+config GPIO_ADNP
+	tristate "Avionic Design N-bit GPIO expander"
+	depends on I2C && OF
+	help
+	  This option enables support for N GPIOs found on Avionic Design
+	  I2C GPIO expanders. The register space will be extended by powers
+	  of two, so the controller will need to accomodate for that. For
+	  example: if a controller provides 48 pins, 6 registers will be
+	  enough to represent all pins, but the driver will assume a
+	  register layout for 64 pins (8 registers).
+
 comment "PCI GPIO expanders:"
 
 config GPIO_CS5535
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 153caceeb05..0ffaa8423e8 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_GPIO_GENERIC)	+= gpio-generic.o
 
 obj-$(CONFIG_GPIO_74X164)	+= gpio-74x164.o
 obj-$(CONFIG_GPIO_AB8500)	+= gpio-ab8500.o
+obj-$(CONFIG_GPIO_ADNP)		+= gpio-adnp.o
 obj-$(CONFIG_GPIO_ADP5520)	+= gpio-adp5520.o
 obj-$(CONFIG_GPIO_ADP5588)	+= gpio-adp5588.o
 obj-$(CONFIG_GPIO_AMD8111)	+= gpio-amd8111.o
@@ -69,6 +70,7 @@ obj-$(CONFIG_GPIO_TPS65912)	+= gpio-tps65912.o
 obj-$(CONFIG_GPIO_TWL4030)	+= gpio-twl4030.o
 obj-$(CONFIG_GPIO_UCB1400)	+= gpio-ucb1400.o
 obj-$(CONFIG_GPIO_VR41XX)	+= gpio-vr41xx.o
+obj-$(CONFIG_GPIO_VT8500)	+= gpio-vt8500.o
 obj-$(CONFIG_GPIO_VX855)	+= gpio-vx855.o
 obj-$(CONFIG_GPIO_WM831X)	+= gpio-wm831x.o
 obj-$(CONFIG_GPIO_WM8350)	+= gpio-wm8350.o
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index a31ad6f5d91..ed3e55161bd 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -14,14 +14,18 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/74x164.h>
 #include <linux/gpio.h>
+#include <linux/of_gpio.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 
+#define GEN_74X164_NUMBER_GPIOS	8
+
 struct gen_74x164_chip {
 	struct spi_device	*spi;
+	u8			*buffer;
 	struct gpio_chip	gpio_chip;
 	struct mutex		lock;
-	u8			port_config;
+	u32			registers;
 };
 
 static struct gen_74x164_chip *gpio_to_74x164_chip(struct gpio_chip *gc)
@@ -31,17 +35,47 @@ static struct gen_74x164_chip *gpio_to_74x164_chip(struct gpio_chip *gc)
 
 static int __gen_74x164_write_config(struct gen_74x164_chip *chip)
 {
-	return spi_write(chip->spi,
-			 &chip->port_config, sizeof(chip->port_config));
+	struct spi_message message;
+	struct spi_transfer *msg_buf;
+	int i, ret = 0;
+
+	msg_buf = kzalloc(chip->registers * sizeof(struct spi_transfer),
+			GFP_KERNEL);
+	if (!msg_buf)
+		return -ENOMEM;
+
+	spi_message_init(&message);
+
+	/*
+	 * Since the registers are chained, every byte sent will make
+	 * the previous byte shift to the next register in the
+	 * chain. Thus, the first byte send will end up in the last
+	 * register at the end of the transfer. So, to have a logical
+	 * numbering, send the bytes in reverse order so that the last
+	 * byte of the buffer will end up in the last register.
+	 */
+	for (i = chip->registers - 1; i >= 0; i--) {
+		msg_buf[i].tx_buf = chip->buffer +i;
+		msg_buf[i].len = sizeof(u8);
+		spi_message_add_tail(msg_buf + i, &message);
+	}
+
+	ret = spi_sync(chip->spi, &message);
+
+	kfree(msg_buf);
+
+	return ret;
 }
 
 static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
 {
 	struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
+	u8 bank = offset / 8;
+	u8 pin = offset % 8;
 	int ret;
 
 	mutex_lock(&chip->lock);
-	ret = (chip->port_config >> offset) & 0x1;
+	ret = (chip->buffer[bank] >> pin) & 0x1;
 	mutex_unlock(&chip->lock);
 
 	return ret;
@@ -51,12 +85,14 @@ static void gen_74x164_set_value(struct gpio_chip *gc,
 		unsigned offset, int val)
 {
 	struct gen_74x164_chip *chip = gpio_to_74x164_chip(gc);
+	u8 bank = offset / 8;
+	u8 pin = offset % 8;
 
 	mutex_lock(&chip->lock);
 	if (val)
-		chip->port_config |= (1 << offset);
+		chip->buffer[bank] |= (1 << pin);
 	else
-		chip->port_config &= ~(1 << offset);
+		chip->buffer[bank] &= ~(1 << pin);
 
 	__gen_74x164_write_config(chip);
 	mutex_unlock(&chip->lock);
@@ -75,9 +111,8 @@ static int __devinit gen_74x164_probe(struct spi_device *spi)
 	struct gen_74x164_chip_platform_data *pdata;
 	int ret;
 
-	pdata = spi->dev.platform_data;
-	if (!pdata || !pdata->base) {
-		dev_dbg(&spi->dev, "incorrect or missing platform data\n");
+	if (!spi->dev.of_node) {
+		dev_err(&spi->dev, "No device tree data available.\n");
 		return -EINVAL;
 	}
 
@@ -90,10 +125,16 @@ static int __devinit gen_74x164_probe(struct spi_device *spi)
 	if (ret < 0)
 		return ret;
 
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	chip = devm_kzalloc(&spi->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
 
+	pdata = spi->dev.platform_data;
+	if (pdata && pdata->base)
+		chip->gpio_chip.base = pdata->base;
+	else
+		chip->gpio_chip.base = -1;
+
 	mutex_init(&chip->lock);
 
 	dev_set_drvdata(&spi->dev, chip);
@@ -104,8 +145,20 @@ static int __devinit gen_74x164_probe(struct spi_device *spi)
 	chip->gpio_chip.direction_output = gen_74x164_direction_output;
 	chip->gpio_chip.get = gen_74x164_get_value;
 	chip->gpio_chip.set = gen_74x164_set_value;
-	chip->gpio_chip.base = pdata->base;
-	chip->gpio_chip.ngpio = 8;
+
+	if (of_property_read_u32(spi->dev.of_node, "registers-number", &chip->registers)) {
+		dev_err(&spi->dev, "Missing registers-number property in the DT.\n");
+		ret = -EINVAL;
+		goto exit_destroy;
+	}
+
+	chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers;
+	chip->buffer = devm_kzalloc(&spi->dev, chip->gpio_chip.ngpio, GFP_KERNEL);
+	if (!chip->buffer) {
+		ret = -ENOMEM;
+		goto exit_destroy;
+	}
+
 	chip->gpio_chip.can_sleep = 1;
 	chip->gpio_chip.dev = &spi->dev;
 	chip->gpio_chip.owner = THIS_MODULE;
@@ -125,7 +178,6 @@ static int __devinit gen_74x164_probe(struct spi_device *spi)
 exit_destroy:
 	dev_set_drvdata(&spi->dev, NULL);
 	mutex_destroy(&chip->lock);
-	kfree(chip);
 	return ret;
 }
 
@@ -141,36 +193,31 @@ static int __devexit gen_74x164_remove(struct spi_device *spi)
 	dev_set_drvdata(&spi->dev, NULL);
 
 	ret = gpiochip_remove(&chip->gpio_chip);
-	if (!ret) {
+	if (!ret)
 		mutex_destroy(&chip->lock);
-		kfree(chip);
-	} else
+	else
 		dev_err(&spi->dev, "Failed to remove the GPIO controller: %d\n",
 				ret);
 
 	return ret;
 }
 
+static const struct of_device_id gen_74x164_dt_ids[] = {
+	{ .compatible = "fairchild,74hc595" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, gen_74x164_dt_ids);
+
 static struct spi_driver gen_74x164_driver = {
 	.driver = {
 		.name		= "74x164",
 		.owner		= THIS_MODULE,
+		.of_match_table	= of_match_ptr(gen_74x164_dt_ids),
 	},
 	.probe		= gen_74x164_probe,
 	.remove		= __devexit_p(gen_74x164_remove),
 };
-
-static int __init gen_74x164_init(void)
-{
-	return spi_register_driver(&gen_74x164_driver);
-}
-subsys_initcall(gen_74x164_init);
-
-static void __exit gen_74x164_exit(void)
-{
-	spi_unregister_driver(&gen_74x164_driver);
-}
-module_exit(gen_74x164_exit);
+module_spi_driver(gen_74x164_driver);
 
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
 MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
new file mode 100644
index 00000000000..3df88336415
--- /dev/null
+++ b/drivers/gpio/gpio-adnp.c
@@ -0,0 +1,611 @@
+/*
+ * Copyright (C) 2011-2012 Avionic Design GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/of_irq.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+#define GPIO_DDR(gpio) (0x00 << (gpio)->reg_shift)
+#define GPIO_PLR(gpio) (0x01 << (gpio)->reg_shift)
+#define GPIO_IER(gpio) (0x02 << (gpio)->reg_shift)
+#define GPIO_ISR(gpio) (0x03 << (gpio)->reg_shift)
+#define GPIO_PTR(gpio) (0x04 << (gpio)->reg_shift)
+
+struct adnp {
+	struct i2c_client *client;
+	struct gpio_chip gpio;
+	unsigned int reg_shift;
+
+	struct mutex i2c_lock;
+
+	struct irq_domain *domain;
+	struct mutex irq_lock;
+
+	u8 *irq_enable;
+	u8 *irq_level;
+	u8 *irq_rise;
+	u8 *irq_fall;
+	u8 *irq_high;
+	u8 *irq_low;
+};
+
+static inline struct adnp *to_adnp(struct gpio_chip *chip)
+{
+	return container_of(chip, struct adnp, gpio);
+}
+
+static int adnp_read(struct adnp *adnp, unsigned offset, uint8_t *value)
+{
+	int err;
+
+	err = i2c_smbus_read_byte_data(adnp->client, offset);
+	if (err < 0) {
+		dev_err(adnp->gpio.dev, "%s failed: %d\n",
+			"i2c_smbus_read_byte_data()", err);
+		return err;
+	}
+
+	*value = err;
+	return 0;
+}
+
+static int adnp_write(struct adnp *adnp, unsigned offset, uint8_t value)
+{
+	int err;
+
+	err = i2c_smbus_write_byte_data(adnp->client, offset, value);
+	if (err < 0) {
+		dev_err(adnp->gpio.dev, "%s failed: %d\n",
+			"i2c_smbus_write_byte_data()", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int adnp_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct adnp *adnp = to_adnp(chip);
+	unsigned int reg = offset >> adnp->reg_shift;
+	unsigned int pos = offset & 7;
+	u8 value;
+	int err;
+
+	err = adnp_read(adnp, GPIO_PLR(adnp) + reg, &value);
+	if (err < 0)
+		return err;
+
+	return (value & BIT(pos)) ? 1 : 0;
+}
+
+static void __adnp_gpio_set(struct adnp *adnp, unsigned offset, int value)
+{
+	unsigned int reg = offset >> adnp->reg_shift;
+	unsigned int pos = offset & 7;
+	int err;
+	u8 val;
+
+	err = adnp_read(adnp, GPIO_PLR(adnp) + reg, &val);
+	if (err < 0)
+		return;
+
+	if (value)
+		val |= BIT(pos);
+	else
+		val &= ~BIT(pos);
+
+	adnp_write(adnp, GPIO_PLR(adnp) + reg, val);
+}
+
+static void adnp_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct adnp *adnp = to_adnp(chip);
+
+	mutex_lock(&adnp->i2c_lock);
+	__adnp_gpio_set(adnp, offset, value);
+	mutex_unlock(&adnp->i2c_lock);
+}
+
+static int adnp_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct adnp *adnp = to_adnp(chip);
+	unsigned int reg = offset >> adnp->reg_shift;
+	unsigned int pos = offset & 7;
+	u8 value;
+	int err;
+
+	mutex_lock(&adnp->i2c_lock);
+
+	err = adnp_read(adnp, GPIO_DDR(adnp) + reg, &value);
+	if (err < 0)
+		goto out;
+
+	value &= ~BIT(pos);
+
+	err = adnp_write(adnp, GPIO_DDR(adnp) + reg, value);
+	if (err < 0)
+		goto out;
+
+	err = adnp_read(adnp, GPIO_DDR(adnp) + reg, &value);
+	if (err < 0)
+		goto out;
+
+	if (err & BIT(pos))
+		err = -EACCES;
+
+	err = 0;
+
+out:
+	mutex_unlock(&adnp->i2c_lock);
+	return err;
+}
+
+static int adnp_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+				      int value)
+{
+	struct adnp *adnp = to_adnp(chip);
+	unsigned int reg = offset >> adnp->reg_shift;
+	unsigned int pos = offset & 7;
+	int err;
+	u8 val;
+
+	mutex_lock(&adnp->i2c_lock);
+
+	err = adnp_read(adnp, GPIO_DDR(adnp) + reg, &val);
+	if (err < 0)
+		goto out;
+
+	val |= BIT(pos);
+
+	err = adnp_write(adnp, GPIO_DDR(adnp) + reg, val);
+	if (err < 0)
+		goto out;
+
+	err = adnp_read(adnp, GPIO_DDR(adnp) + reg, &val);
+	if (err < 0)
+		goto out;
+
+	if (!(val & BIT(pos))) {
+		err = -EPERM;
+		goto out;
+	}
+
+	__adnp_gpio_set(adnp, offset, value);
+	err = 0;
+
+out:
+	mutex_unlock(&adnp->i2c_lock);
+	return err;
+}
+
+static void adnp_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
+{
+	struct adnp *adnp = to_adnp(chip);
+	unsigned int num_regs = 1 << adnp->reg_shift, i, j;
+	int err;
+
+	for (i = 0; i < num_regs; i++) {
+		u8 ddr, plr, ier, isr;
+
+		mutex_lock(&adnp->i2c_lock);
+
+		err = adnp_read(adnp, GPIO_DDR(adnp) + i, &ddr);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			return;
+		}
+
+		err = adnp_read(adnp, GPIO_PLR(adnp) + i, &plr);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			return;
+		}
+
+		err = adnp_read(adnp, GPIO_IER(adnp) + i, &ier);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			return;
+		}
+
+		err = adnp_read(adnp, GPIO_ISR(adnp) + i, &isr);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			return;
+		}
+
+		mutex_unlock(&adnp->i2c_lock);
+
+		for (j = 0; j < 8; j++) {
+			unsigned int bit = (i << adnp->reg_shift) + j;
+			const char *direction = "input ";
+			const char *level = "low ";
+			const char *interrupt = "disabled";
+			const char *pending = "";
+
+			if (ddr & BIT(j))
+				direction = "output";
+
+			if (plr & BIT(j))
+				level = "high";
+
+			if (ier & BIT(j))
+				interrupt = "enabled ";
+
+			if (isr & BIT(j))
+				pending = "pending";
+
+			seq_printf(s, "%2u: %s %s IRQ %s %s\n", bit,
+				   direction, level, interrupt, pending);
+		}
+	}
+}
+
+static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios)
+{
+	struct gpio_chip *chip = &adnp->gpio;
+
+	adnp->reg_shift = get_count_order(num_gpios) - 3;
+
+	chip->direction_input = adnp_gpio_direction_input;
+	chip->direction_output = adnp_gpio_direction_output;
+	chip->get = adnp_gpio_get;
+	chip->set = adnp_gpio_set;
+	chip->can_sleep = 1;
+
+	if (IS_ENABLED(CONFIG_DEBUG_FS))
+		chip->dbg_show = adnp_gpio_dbg_show;
+
+	chip->base = -1;
+	chip->ngpio = num_gpios;
+	chip->label = adnp->client->name;
+	chip->dev = &adnp->client->dev;
+	chip->of_node = chip->dev->of_node;
+	chip->owner = THIS_MODULE;
+
+	return 0;
+}
+
+static irqreturn_t adnp_irq(int irq, void *data)
+{
+	struct adnp *adnp = data;
+	unsigned int num_regs, i;
+
+	num_regs = 1 << adnp->reg_shift;
+
+	for (i = 0; i < num_regs; i++) {
+		unsigned int base = i << adnp->reg_shift, bit;
+		u8 changed, level, isr, ier;
+		unsigned long pending;
+		int err;
+
+		mutex_lock(&adnp->i2c_lock);
+
+		err = adnp_read(adnp, GPIO_PLR(adnp) + i, &level);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			continue;
+		}
+
+		err = adnp_read(adnp, GPIO_ISR(adnp) + i, &isr);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			continue;
+		}
+
+		err = adnp_read(adnp, GPIO_IER(adnp) + i, &ier);
+		if (err < 0) {
+			mutex_unlock(&adnp->i2c_lock);
+			continue;
+		}
+
+		mutex_unlock(&adnp->i2c_lock);
+
+		/* determine pins that changed levels */
+		changed = level ^ adnp->irq_level[i];
+
+		/* compute edge-triggered interrupts */
+		pending = changed & ((adnp->irq_fall[i] & ~level) |
+				     (adnp->irq_rise[i] & level));
+
+		/* add in level-triggered interrupts */
+		pending |= (adnp->irq_high[i] & level) |
+			   (adnp->irq_low[i] & ~level);
+
+		/* mask out non-pending and disabled interrupts */
+		pending &= isr & ier;
+
+		for_each_set_bit(bit, &pending, 8) {
+			unsigned int virq;
+			virq = irq_find_mapping(adnp->domain, base + bit);
+			handle_nested_irq(virq);
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int adnp_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct adnp *adnp = to_adnp(chip);
+	return irq_create_mapping(adnp->domain, offset);
+}
+
+static void adnp_irq_mask(struct irq_data *data)
+{
+	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+	unsigned int reg = data->hwirq >> adnp->reg_shift;
+	unsigned int pos = data->hwirq & 7;
+
+	adnp->irq_enable[reg] &= ~BIT(pos);
+}
+
+static void adnp_irq_unmask(struct irq_data *data)
+{
+	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+	unsigned int reg = data->hwirq >> adnp->reg_shift;
+	unsigned int pos = data->hwirq & 7;
+
+	adnp->irq_enable[reg] |= BIT(pos);
+}
+
+static int adnp_irq_set_type(struct irq_data *data, unsigned int type)
+{
+	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+	unsigned int reg = data->hwirq >> adnp->reg_shift;
+	unsigned int pos = data->hwirq & 7;
+
+	if (type & IRQ_TYPE_EDGE_RISING)
+		adnp->irq_rise[reg] |= BIT(pos);
+	else
+		adnp->irq_rise[reg] &= ~BIT(pos);
+
+	if (type & IRQ_TYPE_EDGE_FALLING)
+		adnp->irq_fall[reg] |= BIT(pos);
+	else
+		adnp->irq_fall[reg] &= ~BIT(pos);
+
+	if (type & IRQ_TYPE_LEVEL_HIGH)
+		adnp->irq_high[reg] |= BIT(pos);
+	else
+		adnp->irq_high[reg] &= ~BIT(pos);
+
+	if (type & IRQ_TYPE_LEVEL_LOW)
+		adnp->irq_low[reg] |= BIT(pos);
+	else
+		adnp->irq_low[reg] &= ~BIT(pos);
+
+	return 0;
+}
+
+static void adnp_irq_bus_lock(struct irq_data *data)
+{
+	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+
+	mutex_lock(&adnp->irq_lock);
+}
+
+static void adnp_irq_bus_unlock(struct irq_data *data)
+{
+	struct adnp *adnp = irq_data_get_irq_chip_data(data);
+	unsigned int num_regs = 1 << adnp->reg_shift, i;
+
+	mutex_lock(&adnp->i2c_lock);
+
+	for (i = 0; i < num_regs; i++)
+		adnp_write(adnp, GPIO_IER(adnp) + i, adnp->irq_enable[i]);
+
+	mutex_unlock(&adnp->i2c_lock);
+	mutex_unlock(&adnp->irq_lock);
+}
+
+static struct irq_chip adnp_irq_chip = {
+	.name = "gpio-adnp",
+	.irq_mask = adnp_irq_mask,
+	.irq_unmask = adnp_irq_unmask,
+	.irq_set_type = adnp_irq_set_type,
+	.irq_bus_lock = adnp_irq_bus_lock,
+	.irq_bus_sync_unlock = adnp_irq_bus_unlock,
+};
+
+static int adnp_irq_map(struct irq_domain *domain, unsigned int irq,
+			irq_hw_number_t hwirq)
+{
+	irq_set_chip_data(irq, domain->host_data);
+	irq_set_chip(irq, &adnp_irq_chip);
+	irq_set_nested_thread(irq, true);
+
+#ifdef CONFIG_ARM
+	set_irq_flags(irq, IRQF_VALID);
+#else
+	irq_set_noprobe(irq);
+#endif
+
+	return 0;
+}
+
+static const struct irq_domain_ops adnp_irq_domain_ops = {
+	.map = adnp_irq_map,
+	.xlate = irq_domain_xlate_twocell,
+};
+
+static int adnp_irq_setup(struct adnp *adnp)
+{
+	unsigned int num_regs = 1 << adnp->reg_shift, i;
+	struct gpio_chip *chip = &adnp->gpio;
+	int err;
+
+	mutex_init(&adnp->irq_lock);
+
+	/*
+	 * Allocate memory to keep track of the current level and trigger
+	 * modes of the interrupts. To avoid multiple allocations, a single
+	 * large buffer is allocated and pointers are setup to point at the
+	 * corresponding offsets. For consistency, the layout of the buffer
+	 * is chosen to match the register layout of the hardware in that
+	 * each segment contains the corresponding bits for all interrupts.
+	 */
+	adnp->irq_enable = devm_kzalloc(chip->dev, num_regs * 6, GFP_KERNEL);
+	if (!adnp->irq_enable)
+		return -ENOMEM;
+
+	adnp->irq_level = adnp->irq_enable + (num_regs * 1);
+	adnp->irq_rise = adnp->irq_enable + (num_regs * 2);
+	adnp->irq_fall = adnp->irq_enable + (num_regs * 3);
+	adnp->irq_high = adnp->irq_enable + (num_regs * 4);
+	adnp->irq_low = adnp->irq_enable + (num_regs * 5);
+
+	for (i = 0; i < num_regs; i++) {
+		/*
+		 * Read the initial level of all pins to allow the emulation
+		 * of edge triggered interrupts.
+		 */
+		err = adnp_read(adnp, GPIO_PLR(adnp) + i, &adnp->irq_level[i]);
+		if (err < 0)
+			return err;
+
+		/* disable all interrupts */
+		err = adnp_write(adnp, GPIO_IER(adnp) + i, 0);
+		if (err < 0)
+			return err;
+
+		adnp->irq_enable[i] = 0x00;
+	}
+
+	adnp->domain = irq_domain_add_linear(chip->of_node, chip->ngpio,
+					     &adnp_irq_domain_ops, adnp);
+
+	err = request_threaded_irq(adnp->client->irq, NULL, adnp_irq,
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				   dev_name(chip->dev), adnp);
+	if (err != 0) {
+		dev_err(chip->dev, "can't request IRQ#%d: %d\n",
+			adnp->client->irq, err);
+		goto error;
+	}
+
+	chip->to_irq = adnp_gpio_to_irq;
+	return 0;
+
+error:
+	irq_domain_remove(adnp->domain);
+	return err;
+}
+
+static void adnp_irq_teardown(struct adnp *adnp)
+{
+	unsigned int irq, i;
+
+	free_irq(adnp->client->irq, adnp);
+
+	for (i = 0; i < adnp->gpio.ngpio; i++) {
+		irq = irq_find_mapping(adnp->domain, i);
+		if (irq > 0)
+			irq_dispose_mapping(irq);
+	}
+
+	irq_domain_remove(adnp->domain);
+}
+
+static __devinit int adnp_i2c_probe(struct i2c_client *client,
+				    const struct i2c_device_id *id)
+{
+	struct device_node *np = client->dev.of_node;
+	struct adnp *adnp;
+	u32 num_gpios;
+	int err;
+
+	err = of_property_read_u32(np, "nr-gpios", &num_gpios);
+	if (err < 0)
+		return err;
+
+	client->irq = irq_of_parse_and_map(np, 0);
+	if (!client->irq)
+		return -EPROBE_DEFER;
+
+	adnp = devm_kzalloc(&client->dev, sizeof(*adnp), GFP_KERNEL);
+	if (!adnp)
+		return -ENOMEM;
+
+	mutex_init(&adnp->i2c_lock);
+	adnp->client = client;
+
+	err = adnp_gpio_setup(adnp, num_gpios);
+	if (err < 0)
+		return err;
+
+	if (of_find_property(np, "interrupt-controller", NULL)) {
+		err = adnp_irq_setup(adnp);
+		if (err < 0)
+			goto teardown;
+	}
+
+	err = gpiochip_add(&adnp->gpio);
+	if (err < 0)
+		goto teardown;
+
+	i2c_set_clientdata(client, adnp);
+	return 0;
+
+teardown:
+	if (of_find_property(np, "interrupt-controller", NULL))
+		adnp_irq_teardown(adnp);
+
+	return err;
+}
+
+static __devexit int adnp_i2c_remove(struct i2c_client *client)
+{
+	struct adnp *adnp = i2c_get_clientdata(client);
+	struct device_node *np = client->dev.of_node;
+	int err;
+
+	err = gpiochip_remove(&adnp->gpio);
+	if (err < 0) {
+		dev_err(&client->dev, "%s failed: %d\n", "gpiochip_remove()",
+			err);
+		return err;
+	}
+
+	if (of_find_property(np, "interrupt-controller", NULL))
+		adnp_irq_teardown(adnp);
+
+	return 0;
+}
+
+static const struct i2c_device_id adnp_i2c_id[] __devinitconst = {
+	{ "gpio-adnp" },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, adnp_i2c_id);
+
+static const struct of_device_id adnp_of_match[] __devinitconst = {
+	{ .compatible = "ad,gpio-adnp", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, adnp_of_match);
+
+static struct i2c_driver adnp_i2c_driver = {
+	.driver = {
+		.name = "gpio-adnp",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(adnp_of_match),
+	},
+	.probe = adnp_i2c_probe,
+	.remove = __devexit_p(adnp_i2c_remove),
+	.id_table = adnp_i2c_id,
+};
+module_i2c_driver(adnp_i2c_driver);
+
+MODULE_DESCRIPTION("Avionic Design N-bit GPIO expander");
+MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpio/gpio-adp5588.c b/drivers/gpio/gpio-adp5588.c
index ae5d7f12ce6..eeedad42913 100644
--- a/drivers/gpio/gpio-adp5588.c
+++ b/drivers/gpio/gpio-adp5588.c
@@ -483,19 +483,7 @@ static struct i2c_driver adp5588_gpio_driver = {
 	.id_table = adp5588_gpio_id,
 };
 
-static int __init adp5588_gpio_init(void)
-{
-	return i2c_add_driver(&adp5588_gpio_driver);
-}
-
-module_init(adp5588_gpio_init);
-
-static void __exit adp5588_gpio_exit(void)
-{
-	i2c_del_driver(&adp5588_gpio_driver);
-}
-
-module_exit(adp5588_gpio_exit);
+module_i2c_driver(adp5588_gpio_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("GPIO ADP5588 Driver");
diff --git a/drivers/gpio/gpio-bt8xx.c b/drivers/gpio/gpio-bt8xx.c
index e4cc7eb69bb..aba97abda77 100644
--- a/drivers/gpio/gpio-bt8xx.c
+++ b/drivers/gpio/gpio-bt8xx.c
@@ -310,7 +310,7 @@ static int bt8xxgpio_resume(struct pci_dev *pdev)
 #define bt8xxgpio_resume NULL
 #endif /* CONFIG_PM */
 
-static struct pci_device_id bt8xxgpio_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(bt8xxgpio_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878) },
diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c
index 56dd047d584..24b8c297404 100644
--- a/drivers/gpio/gpio-da9052.c
+++ b/drivers/gpio/gpio-da9052.c
@@ -207,7 +207,7 @@ static int __devinit da9052_gpio_probe(struct platform_device *pdev)
 	struct da9052_pdata *pdata;
 	int ret;
 
-	gpio = kzalloc(sizeof(*gpio), GFP_KERNEL);
+	gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
 	if (gpio == NULL)
 		return -ENOMEM;
 
@@ -221,28 +221,19 @@ static int __devinit da9052_gpio_probe(struct platform_device *pdev)
 	ret = gpiochip_add(&gpio->gp);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
-		goto err_mem;
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, gpio);
 
 	return 0;
-
-err_mem:
-	kfree(gpio);
-	return ret;
 }
 
 static int __devexit da9052_gpio_remove(struct platform_device *pdev)
 {
 	struct da9052_gpio *gpio = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = gpiochip_remove(&gpio->gp);
-	if (ret == 0)
-		kfree(gpio);
 
-	return ret;
+	return gpiochip_remove(&gpio->gp);
 }
 
 static struct platform_driver da9052_gpio_driver = {
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 3d000169285..17df6db5dca 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -366,7 +366,7 @@ static int __init davinci_gpio_irq_setup(void)
 		       PTR_ERR(clk));
 		return PTR_ERR(clk);
 	}
-	clk_enable(clk);
+	clk_prepare_enable(clk);
 
 	/* Arrange gpio_to_irq() support, handling either direct IRQs or
 	 * banked IRQs.  Having GPIOs in the first GPIO bank use direct
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index 150d9768811..efb4c2d0d13 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -85,22 +85,16 @@ static inline void em_gio_write(struct em_gio_priv *p, int offs,
 		iowrite32(value, p->base1 + (offs - GIO_IDT0));
 }
 
-static inline struct em_gio_priv *irq_to_priv(struct irq_data *d)
-{
-	struct irq_chip *chip = irq_data_get_irq_chip(d);
-	return container_of(chip, struct em_gio_priv, irq_chip);
-}
-
 static void em_gio_irq_disable(struct irq_data *d)
 {
-	struct em_gio_priv *p = irq_to_priv(d);
+	struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
 
 	em_gio_write(p, GIO_IDS, BIT(irqd_to_hwirq(d)));
 }
 
 static void em_gio_irq_enable(struct irq_data *d)
 {
-	struct em_gio_priv *p = irq_to_priv(d);
+	struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
 
 	em_gio_write(p, GIO_IEN, BIT(irqd_to_hwirq(d)));
 }
@@ -118,7 +112,7 @@ static unsigned char em_gio_sense_table[IRQ_TYPE_SENSE_MASK + 1] = {
 static int em_gio_irq_set_type(struct irq_data *d, unsigned int type)
 {
 	unsigned char value = em_gio_sense_table[type & IRQ_TYPE_SENSE_MASK];
-	struct em_gio_priv *p = irq_to_priv(d);
+	struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
 	unsigned int reg, offset, shift;
 	unsigned long flags;
 	unsigned long tmp;
@@ -247,9 +241,9 @@ static int __devinit em_gio_irq_domain_init(struct em_gio_priv *p)
 
 	p->irq_base = irq_alloc_descs(pdata->irq_base, 0,
 				      pdata->number_of_pins, numa_node_id());
-	if (IS_ERR_VALUE(p->irq_base)) {
+	if (p->irq_base < 0) {
 		dev_err(&pdev->dev, "cannot get irq_desc\n");
-		return -ENXIO;
+		return p->irq_base;
 	}
 	pr_debug("gio: hw base = %d, nr = %d, sw base = %d\n",
 		 pdata->gpio_base, pdata->number_of_pins, p->irq_base);
@@ -266,7 +260,7 @@ static int __devinit em_gio_irq_domain_init(struct em_gio_priv *p)
 	return 0;
 }
 
-static void __devexit em_gio_irq_domain_cleanup(struct em_gio_priv *p)
+static void em_gio_irq_domain_cleanup(struct em_gio_priv *p)
 {
 	struct gpio_em_config *pdata = p->pdev->dev.platform_data;
 
diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c
index a1c8754f52c..202a99207b7 100644
--- a/drivers/gpio/gpio-langwell.c
+++ b/drivers/gpio/gpio-langwell.c
@@ -339,7 +339,7 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev,
 	resource_size_t start, len;
 	struct lnw_gpio *lnw;
 	u32 gpio_base;
-	int retval = 0;
+	int retval;
 	int ngpio = id->driver_data;
 
 	retval = pci_enable_device(pdev);
@@ -357,6 +357,7 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev,
 	base = ioremap_nocache(start, len);
 	if (!base) {
 		dev_err(&pdev->dev, "error mapping bar1\n");
+		retval = -EFAULT;
 		goto err3;
 	}
 	gpio_base = *((u32 *)base + 1);
@@ -381,8 +382,10 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev,
 
 	lnw->domain = irq_domain_add_linear(pdev->dev.of_node, ngpio,
 					    &lnw_gpio_irq_ops, lnw);
-	if (!lnw->domain)
+	if (!lnw->domain) {
+		retval = -ENOMEM;
 		goto err3;
+	}
 
 	lnw->reg_base = base;
 	lnw->chip.label = dev_name(&pdev->dev);
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 8a420f13905..3644e0dcb3d 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -113,7 +113,8 @@ static const char *gpi_p3_names[LPC32XX_GPI_P3_MAX] = {
 	 NULL,    NULL,    NULL,   "gpi15",
 	"gpi16", "gpi17", "gpi18", "gpi19",
 	"gpi20", "gpi21", "gpi22", "gpi23",
-	"gpi24", "gpi25", "gpi26", "gpi27"
+	"gpi24", "gpi25", "gpi26", "gpi27",
+	"gpi28"
 };
 
 static const char *gpo_p3_names[LPC32XX_GPO_P3_MAX] = {
@@ -308,6 +309,7 @@ static int lpc32xx_gpio_dir_output_p012(struct gpio_chip *chip, unsigned pin,
 {
 	struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
 
+	__set_gpio_level_p012(group, pin, value);
 	__set_gpio_dir_p012(group, pin, 0);
 
 	return 0;
@@ -318,6 +320,7 @@ static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
 {
 	struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
 
+	__set_gpio_level_p3(group, pin, value);
 	__set_gpio_dir_p3(group, pin, 0);
 
 	return 0;
@@ -326,6 +329,9 @@ static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
 static int lpc32xx_gpio_dir_out_always(struct gpio_chip *chip, unsigned pin,
 	int value)
 {
+	struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
+
+	__set_gpo_level_p3(group, pin, value);
 	return 0;
 }
 
diff --git a/drivers/gpio/gpio-mc9s08dz60.c b/drivers/gpio/gpio-mc9s08dz60.c
index 2738cc44d63..0ab700046a2 100644
--- a/drivers/gpio/gpio-mc9s08dz60.c
+++ b/drivers/gpio/gpio-mc9s08dz60.c
@@ -91,10 +91,9 @@ static int mc9s08dz60_direction_output(struct gpio_chip *gc,
 static int mc9s08dz60_probe(struct i2c_client *client,
 			    const struct i2c_device_id *id)
 {
-	int ret = 0;
 	struct mc9s08dz60 *mc9s;
 
-	mc9s = kzalloc(sizeof(*mc9s), GFP_KERNEL);
+	mc9s = devm_kzalloc(&client->dev, sizeof(*mc9s), GFP_KERNEL);
 	if (!mc9s)
 		return -ENOMEM;
 
@@ -110,30 +109,16 @@ static int mc9s08dz60_probe(struct i2c_client *client,
 	mc9s->client = client;
 	i2c_set_clientdata(client, mc9s);
 
-	ret = gpiochip_add(&mc9s->chip);
-	if (ret)
-		goto error;
-
-	return 0;
-
- error:
-	kfree(mc9s);
-	return ret;
+	return gpiochip_add(&mc9s->chip);
 }
 
 static int mc9s08dz60_remove(struct i2c_client *client)
 {
 	struct mc9s08dz60 *mc9s;
-	int ret;
 
 	mc9s = i2c_get_clientdata(client);
 
-	ret = gpiochip_remove(&mc9s->chip);
-	if (!ret)
-		kfree(mc9s);
-
-	return ret;
-
+	return gpiochip_remove(&mc9s->chip);
 }
 
 static const struct i2c_device_id mc9s08dz60_id[] = {
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index db01f151d41..6a29ee1847b 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -87,8 +87,7 @@ struct ioh_gpio_reg_data {
  * @gpio_use_sel:		Save GPIO_USE_SEL1~4 register for PM
  * @ch:				Indicate GPIO channel
  * @irq_base:		Save base of IRQ number for interrupt
- * @spinlock:		Used for register access protection in
- *				interrupt context ioh_irq_type and PM;
+ * @spinlock:		Used for register access protection
  */
 struct ioh_gpio {
 	void __iomem *base;
@@ -97,7 +96,6 @@ struct ioh_gpio {
 	struct gpio_chip gpio;
 	struct ioh_gpio_reg_data ioh_gpio_reg;
 	u32 gpio_use_sel;
-	struct mutex lock;
 	int ch;
 	int irq_base;
 	spinlock_t spinlock;
@@ -109,8 +107,9 @@ static void ioh_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
 {
 	u32 reg_val;
 	struct ioh_gpio *chip =	container_of(gpio, struct ioh_gpio, gpio);
+	unsigned long flags;
 
-	mutex_lock(&chip->lock);
+	spin_lock_irqsave(&chip->spinlock, flags);
 	reg_val = ioread32(&chip->reg->regs[chip->ch].po);
 	if (val)
 		reg_val |= (1 << nr);
@@ -118,7 +117,7 @@ static void ioh_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
 		reg_val &= ~(1 << nr);
 
 	iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
-	mutex_unlock(&chip->lock);
+	spin_unlock_irqrestore(&chip->spinlock, flags);
 }
 
 static int ioh_gpio_get(struct gpio_chip *gpio, unsigned nr)
@@ -134,8 +133,9 @@ static int ioh_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
 	struct ioh_gpio *chip =	container_of(gpio, struct ioh_gpio, gpio);
 	u32 pm;
 	u32 reg_val;
+	unsigned long flags;
 
-	mutex_lock(&chip->lock);
+	spin_lock_irqsave(&chip->spinlock, flags);
 	pm = ioread32(&chip->reg->regs[chip->ch].pm) &
 					((1 << num_ports[chip->ch]) - 1);
 	pm |= (1 << nr);
@@ -148,7 +148,7 @@ static int ioh_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
 		reg_val &= ~(1 << nr);
 	iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
 
-	mutex_unlock(&chip->lock);
+	spin_unlock_irqrestore(&chip->spinlock, flags);
 
 	return 0;
 }
@@ -157,13 +157,14 @@ static int ioh_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
 {
 	struct ioh_gpio *chip =	container_of(gpio, struct ioh_gpio, gpio);
 	u32 pm;
+	unsigned long flags;
 
-	mutex_lock(&chip->lock);
+	spin_lock_irqsave(&chip->spinlock, flags);
 	pm = ioread32(&chip->reg->regs[chip->ch].pm) &
 				((1 << num_ports[chip->ch]) - 1);
 	pm &= ~(1 << nr);
 	iowrite32(pm, &chip->reg->regs[chip->ch].pm);
-	mutex_unlock(&chip->lock);
+	spin_unlock_irqrestore(&chip->spinlock, flags);
 
 	return 0;
 }
@@ -447,7 +448,6 @@ static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
 		chip->base = base;
 		chip->reg = chip->base;
 		chip->ch = i;
-		mutex_init(&chip->lock);
 		spin_lock_init(&chip->spinlock);
 		ioh_gpio_setup(chip, num_ports[i]);
 		ret = gpiochip_add(&chip->gpio);
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 5a1817eedd1..9ae29cc0d17 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -38,7 +38,7 @@ struct mpc8xxx_gpio_chip {
 	 */
 	u32 data;
 	struct irq_domain *irq;
-	void *of_dev_id_data;
+	const void *of_dev_id_data;
 };
 
 static inline u32 mpc8xxx_gpio2mask(unsigned int gpio)
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index 71a838f4450..b3898628586 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -99,7 +99,7 @@ static int msic_gpio_to_oreg(unsigned offset)
 	if (offset < 20)
 		return INTEL_MSIC_GPIO0HV0CTLO - offset + 16;
 
-	return INTEL_MSIC_GPIO1HV0CTLO + offset + 20;
+	return INTEL_MSIC_GPIO1HV0CTLO - offset + 20;
 }
 
 static int msic_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 5cb1227d69c..38305beb437 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -317,9 +317,7 @@ static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
 
 	chained_irq_enter(chip, desc);
 
-	for (i = find_first_bit(msm_gpio.enabled_irqs, NR_GPIO_IRQS);
-	     i < NR_GPIO_IRQS;
-	     i = find_next_bit(msm_gpio.enabled_irqs, NR_GPIO_IRQS, i + 1)) {
+	for_each_set_bit(i, msm_gpio.enabled_irqs, NR_GPIO_IRQS) {
 		if (readl(GPIO_INTR_STATUS(i)) & BIT(INTR_STATUS))
 			generic_handle_irq(msm_gpio_to_irq(&msm_gpio.gpio_chip,
 							   i));
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 4db460b6ecf..80f44bb64a8 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -465,9 +465,8 @@ static int __devinit mxc_gpio_probe(struct platform_device *pdev)
 		goto out_iounmap;
 
 	port->bgc.gc.to_irq = mxc_gpio_to_irq;
-	port->bgc.gc.base = pdev->id * 32;
-	port->bgc.dir = port->bgc.read_reg(port->bgc.reg_dir);
-	port->bgc.data = port->bgc.read_reg(port->bgc.reg_set);
+	port->bgc.gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
+					     pdev->id * 32;
 
 	err = gpiochip_add(&port->bgc.gc);
 	if (err)
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index 39e49566996..796fb13e481 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/irq.h>
+#include <linux/irqdomain.h>
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
@@ -52,8 +53,6 @@
 #define GPIO_INT_LEV_MASK	(1 << 0)
 #define GPIO_INT_POL_MASK	(1 << 1)
 
-#define irq_to_gpio(irq)	((irq) - MXS_GPIO_IRQ_START)
-
 enum mxs_gpio_id {
 	IMX23_GPIO,
 	IMX28_GPIO,
@@ -63,7 +62,7 @@ struct mxs_gpio_port {
 	void __iomem *base;
 	int id;
 	int irq;
-	int virtual_irq_start;
+	struct irq_domain *domain;
 	struct bgpio_chip bgc;
 	enum mxs_gpio_id devid;
 };
@@ -82,8 +81,7 @@ static inline int is_imx28_gpio(struct mxs_gpio_port *port)
 
 static int mxs_gpio_set_irq_type(struct irq_data *d, unsigned int type)
 {
-	u32 gpio = irq_to_gpio(d->irq);
-	u32 pin_mask = 1 << (gpio & 31);
+	u32 pin_mask = 1 << d->hwirq;
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
 	struct mxs_gpio_port *port = gc->private;
 	void __iomem *pin_addr;
@@ -120,7 +118,7 @@ static int mxs_gpio_set_irq_type(struct irq_data *d, unsigned int type)
 	else
 		writel(pin_mask, pin_addr + MXS_CLR);
 
-	writel(1 << (gpio & 0x1f),
+	writel(pin_mask,
 	       port->base + PINCTRL_IRQSTAT(port) + MXS_CLR);
 
 	return 0;
@@ -131,7 +129,6 @@ static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
 	u32 irq_stat;
 	struct mxs_gpio_port *port = irq_get_handler_data(irq);
-	u32 gpio_irq_no_base = port->virtual_irq_start;
 
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
 
@@ -140,7 +137,7 @@ static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 
 	while (irq_stat != 0) {
 		int irqoffset = fls(irq_stat) - 1;
-		generic_handle_irq(gpio_irq_no_base + irqoffset);
+		generic_handle_irq(irq_find_mapping(port->domain, irqoffset));
 		irq_stat &= ~(1 << irqoffset);
 	}
 }
@@ -167,12 +164,12 @@ static int mxs_gpio_set_wake_irq(struct irq_data *d, unsigned int enable)
 	return 0;
 }
 
-static void __init mxs_gpio_init_gc(struct mxs_gpio_port *port)
+static void __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
 {
 	struct irq_chip_generic *gc;
 	struct irq_chip_type *ct;
 
-	gc = irq_alloc_generic_chip("gpio-mxs", 1, port->virtual_irq_start,
+	gc = irq_alloc_generic_chip("gpio-mxs", 1, irq_base,
 				    port->base, handle_level_irq);
 	gc->private = port;
 
@@ -194,7 +191,7 @@ static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 	struct mxs_gpio_port *port =
 		container_of(bgc, struct mxs_gpio_port, bgc);
 
-	return port->virtual_irq_start + offset;
+	return irq_find_mapping(port->domain, offset);
 }
 
 static struct platform_device_id mxs_gpio_ids[] = {
@@ -226,6 +223,7 @@ static int __devinit mxs_gpio_probe(struct platform_device *pdev)
 	static void __iomem *base;
 	struct mxs_gpio_port *port;
 	struct resource *iores = NULL;
+	int irq_base;
 	int err;
 
 	port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL);
@@ -241,7 +239,6 @@ static int __devinit mxs_gpio_probe(struct platform_device *pdev)
 		port->id = pdev->id;
 		port->devid = pdev->id_entry->driver_data;
 	}
-	port->virtual_irq_start = MXS_GPIO_IRQ_START + port->id * 32;
 
 	port->irq = platform_get_irq(pdev, 0);
 	if (port->irq < 0)
@@ -275,8 +272,19 @@ static int __devinit mxs_gpio_probe(struct platform_device *pdev)
 	/* clear address has to be used to clear IRQSTAT bits */
 	writel(~0U, port->base + PINCTRL_IRQSTAT(port) + MXS_CLR);
 
+	irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
+	if (irq_base < 0)
+		return irq_base;
+
+	port->domain = irq_domain_add_legacy(np, 32, irq_base, 0,
+					     &irq_domain_simple_ops, NULL);
+	if (!port->domain) {
+		err = -ENODEV;
+		goto out_irqdesc_free;
+	}
+
 	/* gpio-mxs can be a generic irq chip */
-	mxs_gpio_init_gc(port);
+	mxs_gpio_init_gc(port, irq_base);
 
 	/* setup one handler for each entry */
 	irq_set_chained_handler(port->irq, mxs_gpio_irq_handler);
@@ -287,18 +295,22 @@ static int __devinit mxs_gpio_probe(struct platform_device *pdev)
 			 port->base + PINCTRL_DOUT(port), NULL,
 			 port->base + PINCTRL_DOE(port), NULL, 0);
 	if (err)
-		return err;
+		goto out_irqdesc_free;
 
 	port->bgc.gc.to_irq = mxs_gpio_to_irq;
 	port->bgc.gc.base = port->id * 32;
 
 	err = gpiochip_add(&port->bgc.gc);
-	if (err) {
-		bgpio_remove(&port->bgc);
-		return err;
-	}
+	if (err)
+		goto out_bgpio_remove;
 
 	return 0;
+
+out_bgpio_remove:
+	bgpio_remove(&port->bgc);
+out_irqdesc_free:
+	irq_free_descs(irq_base, 32);
+	return err;
 }
 
 static struct platform_driver mxs_gpio_driver = {
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index e6efd77668f..94cbc842fbc 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -25,11 +25,9 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/irqdomain.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
 
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <mach/irqs.h>
-#include <asm/gpio.h>
 #include <asm/mach/irq.h>
 
 #define OFF_MODE	1
@@ -385,13 +383,16 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio,
 static int gpio_irq_type(struct irq_data *d, unsigned type)
 {
 	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-	unsigned gpio;
+	unsigned gpio = 0;
 	int retval;
 	unsigned long flags;
 
-	if (!cpu_class_is_omap2() && d->irq > IH_MPUIO_BASE)
+#ifdef CONFIG_ARCH_OMAP1
+	if (d->irq > IH_MPUIO_BASE)
 		gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
-	else
+#endif
+
+	if (!gpio)
 		gpio = irq_to_gpio(bank, d->irq);
 
 	if (type & ~IRQ_TYPE_SENSE_MASK)
@@ -1058,7 +1059,7 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct device_node *node = dev->of_node;
 	const struct of_device_id *match;
-	struct omap_gpio_platform_data *pdata;
+	const struct omap_gpio_platform_data *pdata;
 	struct resource *res;
 	struct gpio_bank *bank;
 	int ret = 0;
@@ -1440,19 +1441,19 @@ static struct omap_gpio_reg_offs omap4_gpio_regs = {
 	.fallingdetect =	OMAP4_GPIO_FALLINGDETECT,
 };
 
-static struct omap_gpio_platform_data omap2_pdata = {
+const static struct omap_gpio_platform_data omap2_pdata = {
 	.regs = &omap2_gpio_regs,
 	.bank_width = 32,
 	.dbck_flag = false,
 };
 
-static struct omap_gpio_platform_data omap3_pdata = {
+const static struct omap_gpio_platform_data omap3_pdata = {
 	.regs = &omap2_gpio_regs,
 	.bank_width = 32,
 	.dbck_flag = true,
 };
 
-static struct omap_gpio_platform_data omap4_pdata = {
+const static struct omap_gpio_platform_data omap4_pdata = {
 	.regs = &omap4_gpio_regs,
 	.bank_width = 32,
 	.dbck_flag = true,
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 076e236d0da..16af35cd2b1 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -23,7 +23,12 @@
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c/pcf857x.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
 #include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
 
 
 static const struct i2c_device_id pcf857x_id[] = {
@@ -60,7 +65,12 @@ struct pcf857x {
 	struct gpio_chip	chip;
 	struct i2c_client	*client;
 	struct mutex		lock;		/* protect 'out' */
+	struct work_struct	work;		/* irq demux work */
+	struct irq_domain	*irq_domain;	/* for irq demux  */
+	spinlock_t		slock;		/* protect irq demux */
 	unsigned		out;		/* software latch */
+	unsigned		status;		/* current status */
+	int			irq;		/* real irq number */
 
 	int (*write)(struct i2c_client *client, unsigned data);
 	int (*read)(struct i2c_client *client);
@@ -150,6 +160,100 @@ static void pcf857x_set(struct gpio_chip *chip, unsigned offset, int value)
 
 /*-------------------------------------------------------------------------*/
 
+static int pcf857x_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct pcf857x *gpio = container_of(chip, struct pcf857x, chip);
+
+	return irq_create_mapping(gpio->irq_domain, offset);
+}
+
+static void pcf857x_irq_demux_work(struct work_struct *work)
+{
+	struct pcf857x *gpio = container_of(work,
+					       struct pcf857x,
+					       work);
+	unsigned long change, i, status, flags;
+
+	status = gpio->read(gpio->client);
+
+	spin_lock_irqsave(&gpio->slock, flags);
+
+	change = gpio->status ^ status;
+	for_each_set_bit(i, &change, gpio->chip.ngpio)
+		generic_handle_irq(irq_find_mapping(gpio->irq_domain, i));
+	gpio->status = status;
+
+	spin_unlock_irqrestore(&gpio->slock, flags);
+}
+
+static irqreturn_t pcf857x_irq_demux(int irq, void *data)
+{
+	struct pcf857x	*gpio = data;
+
+	/*
+	 * pcf857x can't read/write data here,
+	 * since i2c data access might go to sleep.
+	 */
+	schedule_work(&gpio->work);
+
+	return IRQ_HANDLED;
+}
+
+static int pcf857x_irq_domain_map(struct irq_domain *domain, unsigned int virq,
+				 irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(virq,
+				 &dummy_irq_chip,
+				 handle_level_irq);
+	return 0;
+}
+
+static struct irq_domain_ops pcf857x_irq_domain_ops = {
+	.map	= pcf857x_irq_domain_map,
+};
+
+static void pcf857x_irq_domain_cleanup(struct pcf857x *gpio)
+{
+	if (gpio->irq_domain)
+		irq_domain_remove(gpio->irq_domain);
+
+	if (gpio->irq)
+		free_irq(gpio->irq, gpio);
+}
+
+static int pcf857x_irq_domain_init(struct pcf857x *gpio,
+				   struct pcf857x_platform_data *pdata,
+				   struct device *dev)
+{
+	int status;
+
+	gpio->irq_domain = irq_domain_add_linear(dev->of_node,
+						 gpio->chip.ngpio,
+						 &pcf857x_irq_domain_ops,
+						 NULL);
+	if (!gpio->irq_domain)
+		goto fail;
+
+	/* enable real irq */
+	status = request_irq(pdata->irq, pcf857x_irq_demux, 0,
+			     dev_name(dev), gpio);
+	if (status)
+		goto fail;
+
+	/* enable gpio_to_irq() */
+	INIT_WORK(&gpio->work, pcf857x_irq_demux_work);
+	gpio->chip.to_irq	= pcf857x_to_irq;
+	gpio->irq		= pdata->irq;
+
+	return 0;
+
+fail:
+	pcf857x_irq_domain_cleanup(gpio);
+	return -EINVAL;
+}
+
+/*-------------------------------------------------------------------------*/
+
 static int pcf857x_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -168,6 +272,7 @@ static int pcf857x_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	mutex_init(&gpio->lock);
+	spin_lock_init(&gpio->slock);
 
 	gpio->chip.base			= pdata ? pdata->gpio_base : -1;
 	gpio->chip.can_sleep		= 1;
@@ -179,6 +284,15 @@ static int pcf857x_probe(struct i2c_client *client,
 	gpio->chip.direction_output	= pcf857x_output;
 	gpio->chip.ngpio		= id->driver_data;
 
+	/* enable gpio_to_irq() if platform has settings */
+	if (pdata && pdata->irq) {
+		status = pcf857x_irq_domain_init(gpio, pdata, &client->dev);
+		if (status < 0) {
+			dev_err(&client->dev, "irq_domain init failed\n");
+			goto fail;
+		}
+	}
+
 	/* NOTE:  the OnSemi jlc1562b is also largely compatible with
 	 * these parts, notably for output.  It has a low-resolution
 	 * DAC instead of pin change IRQs; and its inputs can be the
@@ -248,6 +362,7 @@ static int pcf857x_probe(struct i2c_client *client,
 	 * all-ones reset state.  Otherwise it flags pins to be driven low.
 	 */
 	gpio->out = pdata ? ~pdata->n_latch : ~0;
+	gpio->status = gpio->out;
 
 	status = gpiochip_add(&gpio->chip);
 	if (status < 0)
@@ -278,6 +393,10 @@ static int pcf857x_probe(struct i2c_client *client,
 fail:
 	dev_dbg(&client->dev, "probe error %d for '%s'\n",
 			status, client->name);
+
+	if (pdata && pdata->irq)
+		pcf857x_irq_domain_cleanup(gpio);
+
 	kfree(gpio);
 	return status;
 }
@@ -299,6 +418,9 @@ static int pcf857x_remove(struct i2c_client *client)
 		}
 	}
 
+	if (pdata && pdata->irq)
+		pcf857x_irq_domain_cleanup(gpio);
+
 	status = gpiochip_remove(&gpio->chip);
 	if (status == 0)
 		kfree(gpio);
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 139ad3e2001..4ad0c4f9171 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -92,9 +92,7 @@ struct pch_gpio_reg_data {
  * @lock:			Used for register access protection
  * @irq_base:		Save base of IRQ number for interrupt
  * @ioh:		IOH ID
- * @spinlock:		Used for register access protection in
- *				interrupt context pch_irq_mask,
- *				pch_irq_unmask and pch_irq_type;
+ * @spinlock:		Used for register access protection
  */
 struct pch_gpio {
 	void __iomem *base;
@@ -102,7 +100,6 @@ struct pch_gpio {
 	struct device *dev;
 	struct gpio_chip gpio;
 	struct pch_gpio_reg_data pch_gpio_reg;
-	struct mutex lock;
 	int irq_base;
 	enum pch_type_t ioh;
 	spinlock_t spinlock;
@@ -112,8 +109,9 @@ static void pch_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
 {
 	u32 reg_val;
 	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
+	unsigned long flags;
 
-	mutex_lock(&chip->lock);
+	spin_lock_irqsave(&chip->spinlock, flags);
 	reg_val = ioread32(&chip->reg->po);
 	if (val)
 		reg_val |= (1 << nr);
@@ -121,7 +119,7 @@ static void pch_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
 		reg_val &= ~(1 << nr);
 
 	iowrite32(reg_val, &chip->reg->po);
-	mutex_unlock(&chip->lock);
+	spin_unlock_irqrestore(&chip->spinlock, flags);
 }
 
 static int pch_gpio_get(struct gpio_chip *gpio, unsigned nr)
@@ -137,8 +135,9 @@ static int pch_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
 	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
 	u32 pm;
 	u32 reg_val;
+	unsigned long flags;
 
-	mutex_lock(&chip->lock);
+	spin_lock_irqsave(&chip->spinlock, flags);
 	pm = ioread32(&chip->reg->pm) & ((1 << gpio_pins[chip->ioh]) - 1);
 	pm |= (1 << nr);
 	iowrite32(pm, &chip->reg->pm);
@@ -149,8 +148,7 @@ static int pch_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
 	else
 		reg_val &= ~(1 << nr);
 	iowrite32(reg_val, &chip->reg->po);
-
-	mutex_unlock(&chip->lock);
+	spin_unlock_irqrestore(&chip->spinlock, flags);
 
 	return 0;
 }
@@ -159,12 +157,13 @@ static int pch_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
 {
 	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
 	u32 pm;
+	unsigned long flags;
 
-	mutex_lock(&chip->lock);
+	spin_lock_irqsave(&chip->spinlock, flags);
 	pm = ioread32(&chip->reg->pm) & ((1 << gpio_pins[chip->ioh]) - 1);
 	pm &= ~(1 << nr);
 	iowrite32(pm, &chip->reg->pm);
-	mutex_unlock(&chip->lock);
+	spin_unlock_irqrestore(&chip->spinlock, flags);
 
 	return 0;
 }
@@ -387,7 +386,6 @@ static int __devinit pch_gpio_probe(struct pci_dev *pdev,
 
 	chip->reg = chip->base;
 	pci_set_drvdata(pdev, chip);
-	mutex_init(&chip->lock);
 	spin_lock_init(&chip->spinlock);
 	pch_gpio_setup(chip);
 	ret = gpiochip_add(&chip->gpio);
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 58a6a63a6ec..98d52cb3fd1 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -26,6 +26,8 @@
 #include <linux/syscore_ops.h>
 #include <linux/slab.h>
 
+#include <asm/mach/irq.h>
+
 #include <mach/irqs.h>
 
 /*
@@ -59,9 +61,11 @@
 #define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 
 int pxa_last_gpio;
+static int irq_base;
 
 #ifdef CONFIG_OF
 static struct irq_domain *domain;
+static struct device_node *pxa_gpio_of_node;
 #endif
 
 struct pxa_gpio_chip {
@@ -166,63 +170,14 @@ static inline int __gpio_is_occupied(unsigned gpio)
 	return ret;
 }
 
-#ifdef CONFIG_ARCH_PXA
-static inline int __pxa_gpio_to_irq(int gpio)
-{
-	if (gpio_is_pxa_type(gpio_type))
-		return PXA_GPIO_TO_IRQ(gpio);
-	return -1;
-}
-
-static inline int __pxa_irq_to_gpio(int irq)
-{
-	if (gpio_is_pxa_type(gpio_type))
-		return irq - PXA_GPIO_TO_IRQ(0);
-	return -1;
-}
-#else
-static inline int __pxa_gpio_to_irq(int gpio) { return -1; }
-static inline int __pxa_irq_to_gpio(int irq) { return -1; }
-#endif
-
-#ifdef CONFIG_ARCH_MMP
-static inline int __mmp_gpio_to_irq(int gpio)
-{
-	if (gpio_is_mmp_type(gpio_type))
-		return MMP_GPIO_TO_IRQ(gpio);
-	return -1;
-}
-
-static inline int __mmp_irq_to_gpio(int irq)
-{
-	if (gpio_is_mmp_type(gpio_type))
-		return irq - MMP_GPIO_TO_IRQ(0);
-	return -1;
-}
-#else
-static inline int __mmp_gpio_to_irq(int gpio) { return -1; }
-static inline int __mmp_irq_to_gpio(int irq) { return -1; }
-#endif
-
 static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-	int gpio, ret;
-
-	gpio = chip->base + offset;
-	ret = __pxa_gpio_to_irq(gpio);
-	if (ret >= 0)
-		return ret;
-	return __mmp_gpio_to_irq(gpio);
+	return chip->base + offset + irq_base;
 }
 
 int pxa_irq_to_gpio(int irq)
 {
-	int ret;
-
-	ret = __pxa_irq_to_gpio(irq);
-	if (ret >= 0)
-		return ret;
-	return __mmp_irq_to_gpio(irq);
+	return irq - irq_base;
 }
 
 static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
@@ -277,6 +232,24 @@ static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 				(value ? GPSR_OFFSET : GPCR_OFFSET));
 }
 
+#ifdef CONFIG_OF_GPIO
+static int pxa_gpio_of_xlate(struct gpio_chip *gc,
+			     const struct of_phandle_args *gpiospec,
+			     u32 *flags)
+{
+	if (gpiospec->args[0] > pxa_last_gpio)
+		return -EINVAL;
+
+	if (gc != &pxa_gpio_chips[gpiospec->args[0] / 32].chip)
+		return -EINVAL;
+
+	if (flags)
+		*flags = gpiospec->args[1];
+
+	return gpiospec->args[0] % 32;
+}
+#endif
+
 static int __devinit pxa_init_gpio_chip(int gpio_end,
 					int (*set_wake)(unsigned int, unsigned int))
 {
@@ -304,6 +277,11 @@ static int __devinit pxa_init_gpio_chip(int gpio_end,
 		c->get = pxa_gpio_get;
 		c->set = pxa_gpio_set;
 		c->to_irq = pxa_gpio_to_irq;
+#ifdef CONFIG_OF_GPIO
+		c->of_node = pxa_gpio_of_node;
+		c->of_xlate = pxa_gpio_of_xlate;
+		c->of_gpio_n_cells = 2;
+#endif
 
 		/* number of GPIOs on last bank may be less than 32 */
 		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
@@ -379,6 +357,9 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
 	struct pxa_gpio_chip *c;
 	int loop, gpio, gpio_base, n;
 	unsigned long gedr;
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+
+	chained_irq_enter(chip, desc);
 
 	do {
 		loop = 0;
@@ -389,15 +370,15 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
 			gedr = gedr & c->irq_mask;
 			writel_relaxed(gedr, c->regbase + GEDR_OFFSET);
 
-			n = find_first_bit(&gedr, BITS_PER_LONG);
-			while (n < BITS_PER_LONG) {
+			for_each_set_bit(n, &gedr, BITS_PER_LONG) {
 				loop = 1;
 
 				generic_handle_irq(gpio_to_irq(gpio_base + n));
-				n = find_next_bit(&gedr, BITS_PER_LONG, n + 1);
 			}
 		}
 	} while (loop);
+
+	chained_irq_exit(chip, desc);
 }
 
 static void pxa_ack_muxed_gpio(struct irq_data *d)
@@ -488,6 +469,7 @@ static int pxa_gpio_nums(void)
 	return count;
 }
 
+#ifdef CONFIG_OF
 static struct of_device_id pxa_gpio_dt_ids[] = {
 	{ .compatible = "mrvl,pxa-gpio" },
 	{ .compatible = "mrvl,mmp-gpio", .data = (void *)MMP_GPIO },
@@ -505,12 +487,12 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
 
 const struct irq_domain_ops pxa_irq_domain_ops = {
 	.map	= pxa_irq_domain_map,
+	.xlate	= irq_domain_xlate_twocell,
 };
 
-#ifdef CONFIG_OF
 static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev)
 {
-	int ret, nr_banks, nr_gpios, irq_base;
+	int ret, nr_banks, nr_gpios;
 	struct device_node *prev, *next, *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
 				of_match_device(pxa_gpio_dt_ids, &pdev->dev);
@@ -545,6 +527,7 @@ static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev)
 	}
 	domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
 				       &pxa_irq_domain_ops, NULL);
+	pxa_gpio_of_node = np;
 	return 0;
 err:
 	iounmap(gpio_reg_base);
@@ -564,10 +547,20 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev)
 	int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
 
 	ret = pxa_gpio_probe_dt(pdev);
-	if (ret < 0)
+	if (ret < 0) {
 		pxa_last_gpio = pxa_gpio_nums();
-	else
+#ifdef CONFIG_ARCH_PXA
+		if (gpio_is_pxa_type(gpio_type))
+			irq_base = PXA_GPIO_TO_IRQ(0);
+#endif
+#ifdef CONFIG_ARCH_MMP
+		if (gpio_is_mmp_type(gpio_type))
+			irq_base = MMP_GPIO_TO_IRQ(0);
+#endif
+	} else {
 		use_of = 1;
+	}
+
 	if (!pxa_last_gpio)
 		return -EINVAL;
 
@@ -594,15 +587,8 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev)
 		iounmap(gpio_reg_base);
 		return PTR_ERR(clk);
 	}
-	ret = clk_prepare(clk);
-	if (ret) {
-		clk_put(clk);
-		iounmap(gpio_reg_base);
-		return ret;
-	}
-	ret = clk_enable(clk);
+	ret = clk_prepare_enable(clk);
 	if (ret) {
-		clk_unprepare(clk);
 		clk_put(clk);
 		iounmap(gpio_reg_base);
 		return ret;
@@ -653,7 +639,7 @@ static struct platform_driver pxa_gpio_driver = {
 	.probe		= pxa_gpio_probe,
 	.driver		= {
 		.name	= "pxa-gpio",
-		.of_match_table = pxa_gpio_dt_ids,
+		.of_match_table = of_match_ptr(pxa_gpio_dt_ids),
 	},
 };
 
diff --git a/drivers/gpio/gpio-rdc321x.c b/drivers/gpio/gpio-rdc321x.c
index e97016af644..b62d443e9a5 100644
--- a/drivers/gpio/gpio-rdc321x.c
+++ b/drivers/gpio/gpio-rdc321x.c
@@ -170,6 +170,7 @@ static int __devinit rdc321x_gpio_probe(struct platform_device *pdev)
 	rdc321x_gpio_dev->reg2_data_base = r->start + 0x4;
 
 	rdc321x_gpio_dev->chip.label = "rdc321x-gpio";
+	rdc321x_gpio_dev->chip.owner = THIS_MODULE;
 	rdc321x_gpio_dev->chip.direction_input = rdc_gpio_direction_input;
 	rdc321x_gpio_dev->chip.direction_output = rdc_gpio_config;
 	rdc321x_gpio_dev->chip.get = rdc_gpio_get_value;
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 92f7b2bb79d..a006f0db15a 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -938,6 +938,67 @@ static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
 		s3c_gpiolib_track(chip);
 }
 
+#if defined(CONFIG_PLAT_S3C24XX) && defined(CONFIG_OF)
+static int s3c24xx_gpio_xlate(struct gpio_chip *gc,
+			const struct of_phandle_args *gpiospec, u32 *flags)
+{
+	unsigned int pin;
+
+	if (WARN_ON(gc->of_gpio_n_cells < 3))
+		return -EINVAL;
+
+	if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
+		return -EINVAL;
+
+	if (gpiospec->args[0] > gc->ngpio)
+		return -EINVAL;
+
+	pin = gc->base + gpiospec->args[0];
+
+	if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
+		pr_warn("gpio_xlate: failed to set pin function\n");
+	if (s3c_gpio_setpull(pin, gpiospec->args[2] & 0xffff))
+		pr_warn("gpio_xlate: failed to set pin pull up/down\n");
+
+	if (flags)
+		*flags = gpiospec->args[2] >> 16;
+
+	return gpiospec->args[0];
+}
+
+static const struct of_device_id s3c24xx_gpio_dt_match[] __initdata = {
+	{ .compatible = "samsung,s3c24xx-gpio", },
+	{}
+};
+
+static __init void s3c24xx_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
+						 u64 base, u64 offset)
+{
+	struct gpio_chip *gc =  &chip->chip;
+	u64 address;
+
+	if (!of_have_populated_dt())
+		return;
+
+	address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
+	gc->of_node = of_find_matching_node_by_address(NULL,
+			s3c24xx_gpio_dt_match, address);
+	if (!gc->of_node) {
+		pr_info("gpio: device tree node not found for gpio controller"
+			" with base address %08llx\n", address);
+		return;
+	}
+	gc->of_gpio_n_cells = 3;
+	gc->of_xlate = s3c24xx_gpio_xlate;
+}
+#else
+static __init void s3c24xx_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
+						 u64 base, u64 offset)
+{
+	return;
+}
+#endif /* defined(CONFIG_PLAT_S3C24XX) && defined(CONFIG_OF) */
+
 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
 					     int nr_chips, void __iomem *base)
 {
@@ -962,6 +1023,8 @@ static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
 			gc->direction_output = samsung_gpiolib_2bit_output;
 
 		samsung_gpiolib_add(chip);
+
+		s3c24xx_gpiolib_attach_ofnode(chip, S3C24XX_PA_GPIO, i * 0x10);
 	}
 }
 
@@ -2454,12 +2517,6 @@ static struct samsung_gpio_chip exynos5_gpios_1[] = {
 		},
 	}, {
 		.chip	= {
-			.base	= EXYNOS5_GPC4(0),
-			.ngpio	= EXYNOS5_GPIO_C4_NR,
-			.label	= "GPC4",
-		},
-	}, {
-		.chip	= {
 			.base	= EXYNOS5_GPD0(0),
 			.ngpio	= EXYNOS5_GPIO_D0_NR,
 			.label	= "GPD0",
@@ -2513,6 +2570,12 @@ static struct samsung_gpio_chip exynos5_gpios_1[] = {
 			.label	= "GPY6",
 		},
 	}, {
+		.chip	= {
+			.base	= EXYNOS5_GPC4(0),
+			.ngpio	= EXYNOS5_GPIO_C4_NR,
+			.label	= "GPC4",
+		},
+	}, {
 		.config	= &samsung_gpio_cfgs[9],
 		.irq_base = IRQ_EINT(0),
 		.chip	= {
@@ -2734,6 +2797,27 @@ static __init void exynos4_gpiolib_init(void)
 	int group = 0;
 	void __iomem *gpx_base;
 
+#ifdef CONFIG_PINCTRL_SAMSUNG
+		/*
+		 * This gpio driver includes support for device tree support and
+		 * there are platforms using it. In order to maintain
+		 * compatibility with those platforms, and to allow non-dt
+		 * Exynos4210 platforms to use this gpiolib support, a check
+		 * is added to find out if there is a active pin-controller
+		 * driver support available. If it is available, this gpiolib
+		 * support is ignored and the gpiolib support available in
+		 * pin-controller driver is used. This is a temporary check and
+		 * will go away when all of the Exynos4210 platforms have
+		 * switched to using device tree and the pin-ctrl driver.
+		 */
+		struct device_node *pctrl_np;
+		const char *pctrl_compat = "samsung,pinctrl-exynos4210";
+		pctrl_np = of_find_compatible_node(NULL, NULL, pctrl_compat);
+		if (pctrl_np)
+			if (of_device_is_available(pctrl_np))
+				return;
+#endif
+
 	/* gpio part1 */
 	gpio_base1 = ioremap(EXYNOS4_PA_GPIO1, SZ_4K);
 	if (gpio_base1 == NULL) {
@@ -2836,7 +2920,7 @@ static __init void exynos5_gpiolib_init(void)
 	}
 
 	/* need to set base address for gpc4 */
-	exynos5_gpios_1[11].base = gpio_base1 + 0x2E0;
+	exynos5_gpios_1[20].base = gpio_base1 + 0x2E0;
 
 	/* need to set base address for gpx */
 	chip = &exynos5_gpios_1[21];
@@ -3131,46 +3215,6 @@ samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
 }
 EXPORT_SYMBOL(s3c_gpio_getpull);
 
-/* gpiolib wrappers until these are totally eliminated */
-
-void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
-{
-	int ret;
-
-	WARN_ON(to);	/* should be none of these left */
-
-	if (!to) {
-		/* if pull is enabled, try first with up, and if that
-		 * fails, try using down */
-
-		ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
-		if (ret)
-			s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
-	} else {
-		s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
-	}
-}
-EXPORT_SYMBOL(s3c2410_gpio_pullup);
-
-void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
-{
-	/* do this via gpiolib until all users removed */
-
-	gpio_request(pin, "temporary");
-	gpio_set_value(pin, to);
-	gpio_free(pin);
-}
-EXPORT_SYMBOL(s3c2410_gpio_setpin);
-
-unsigned int s3c2410_gpio_getpin(unsigned int pin)
-{
-	struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
-	unsigned long offs = pin - chip->chip.base;
-
-	return __raw_readl(chip->base + 0x04) & (1 << offs);
-}
-EXPORT_SYMBOL(s3c2410_gpio_getpin);
-
 #ifdef CONFIG_S5P_GPIO_DRVSTR
 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
 {
diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
index 424dce8e3f3..8707d4572a0 100644
--- a/drivers/gpio/gpio-sch.c
+++ b/drivers/gpio/gpio-sch.c
@@ -241,7 +241,8 @@ static int __devinit sch_gpio_probe(struct platform_device *pdev)
 			break;
 
 		default:
-			return -ENODEV;
+			err = -ENODEV;
+			goto err_sch_gpio_core;
 	}
 
 	sch_gpio_core.dev = &pdev->dev;
diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c
index 9d9891f7a60..e25f73130b4 100644
--- a/drivers/gpio/gpio-sodaville.c
+++ b/drivers/gpio/gpio-sodaville.c
@@ -270,7 +270,7 @@ static void sdv_gpio_remove(struct pci_dev *pdev)
 	kfree(sd);
 }
 
-static struct pci_device_id sdv_gpio_pci_ids[] __devinitdata = {
+static DEFINE_PCI_DEVICE_TABLE(sdv_gpio_pci_ids) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_SDV_GPIO) },
 	{ 0, },
 };
diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c
index a4f73534394..eb3e215d239 100644
--- a/drivers/gpio/gpio-sx150x.c
+++ b/drivers/gpio/gpio-sx150x.c
@@ -311,11 +311,9 @@ static int sx150x_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 
 static void sx150x_irq_mask(struct irq_data *d)
 {
-	struct irq_chip *ic = irq_data_get_irq_chip(d);
-	struct sx150x_chip *chip;
+	struct sx150x_chip *chip = irq_data_get_irq_chip_data(d);
 	unsigned n;
 
-	chip = container_of(ic, struct sx150x_chip, irq_chip);
 	n = d->irq - chip->irq_base;
 	chip->irq_masked |= (1 << n);
 	chip->irq_update = n;
@@ -323,27 +321,22 @@ static void sx150x_irq_mask(struct irq_data *d)
 
 static void sx150x_irq_unmask(struct irq_data *d)
 {
-	struct irq_chip *ic = irq_data_get_irq_chip(d);
-	struct sx150x_chip *chip;
+	struct sx150x_chip *chip = irq_data_get_irq_chip_data(d);
 	unsigned n;
 
-	chip = container_of(ic, struct sx150x_chip, irq_chip);
 	n = d->irq - chip->irq_base;
-
 	chip->irq_masked &= ~(1 << n);
 	chip->irq_update = n;
 }
 
 static int sx150x_irq_set_type(struct irq_data *d, unsigned int flow_type)
 {
-	struct irq_chip *ic = irq_data_get_irq_chip(d);
-	struct sx150x_chip *chip;
+	struct sx150x_chip *chip = irq_data_get_irq_chip_data(d);
 	unsigned n, val = 0;
 
 	if (flow_type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
 		return -EINVAL;
 
-	chip = container_of(ic, struct sx150x_chip, irq_chip);
 	n = d->irq - chip->irq_base;
 
 	if (flow_type & IRQ_TYPE_EDGE_RISING)
@@ -391,22 +384,16 @@ static irqreturn_t sx150x_irq_thread_fn(int irq, void *dev_id)
 
 static void sx150x_irq_bus_lock(struct irq_data *d)
 {
-	struct irq_chip *ic = irq_data_get_irq_chip(d);
-	struct sx150x_chip *chip;
-
-	chip = container_of(ic, struct sx150x_chip, irq_chip);
+	struct sx150x_chip *chip = irq_data_get_irq_chip_data(d);
 
 	mutex_lock(&chip->lock);
 }
 
 static void sx150x_irq_bus_sync_unlock(struct irq_data *d)
 {
-	struct irq_chip *ic = irq_data_get_irq_chip(d);
-	struct sx150x_chip *chip;
+	struct sx150x_chip *chip = irq_data_get_irq_chip_data(d);
 	unsigned n;
 
-	chip = container_of(ic, struct sx150x_chip, irq_chip);
-
 	if (chip->irq_update == NO_UPDATE_PENDING)
 		goto out;
 
@@ -551,6 +538,7 @@ static int sx150x_install_irq_chip(struct sx150x_chip *chip,
 
 	for (n = 0; n < chip->dev_cfg->ngpios; ++n) {
 		irq = irq_base + n;
+		irq_set_chip_data(irq, chip);
 		irq_set_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq);
 		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 2a82e8999a4..1e48317e70f 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -11,7 +11,9 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 #include <linux/irq.h>
+#include <linux/irqdomain.h>
 #include <linux/interrupt.h>
 #include <linux/mfd/tc3589x.h>
 
@@ -29,6 +31,7 @@ struct tc3589x_gpio {
 	struct tc3589x *tc3589x;
 	struct device *dev;
 	struct mutex irq_lock;
+	struct irq_domain *domain;
 
 	int irq_base;
 
@@ -92,11 +95,28 @@ static int tc3589x_gpio_direction_input(struct gpio_chip *chip,
 	return tc3589x_set_bits(tc3589x, reg, 1 << pos, 0);
 }
 
+/**
+ * tc3589x_gpio_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ
+ *
+ * @tc3589x_gpio: tc3589x_gpio_irq controller to operate on.
+ * @irq: index of the interrupt requested in the chip IRQs
+ *
+ * Useful for drivers to request their own IRQs.
+ */
+static int tc3589x_gpio_irq_get_virq(struct tc3589x_gpio *tc3589x_gpio,
+				     int irq)
+{
+	if (!tc3589x_gpio)
+		return -EINVAL;
+
+	return irq_create_mapping(tc3589x_gpio->domain, irq);
+}
+
 static int tc3589x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
 	struct tc3589x_gpio *tc3589x_gpio = to_tc3589x_gpio(chip);
 
-	return tc3589x_gpio->irq_base + offset;
+	return tc3589x_gpio_irq_get_virq(tc3589x_gpio, offset);
 }
 
 static struct gpio_chip template_chip = {
@@ -113,7 +133,7 @@ static struct gpio_chip template_chip = {
 static int tc3589x_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 {
 	struct tc3589x_gpio *tc3589x_gpio = irq_data_get_irq_chip_data(d);
-	int offset = d->irq - tc3589x_gpio->irq_base;
+	int offset = d->hwirq;
 	int regoffset = offset / 8;
 	int mask = 1 << (offset % 8);
 
@@ -175,7 +195,7 @@ static void tc3589x_gpio_irq_sync_unlock(struct irq_data *d)
 static void tc3589x_gpio_irq_mask(struct irq_data *d)
 {
 	struct tc3589x_gpio *tc3589x_gpio = irq_data_get_irq_chip_data(d);
-	int offset = d->irq - tc3589x_gpio->irq_base;
+	int offset = d->hwirq;
 	int regoffset = offset / 8;
 	int mask = 1 << (offset % 8);
 
@@ -185,7 +205,7 @@ static void tc3589x_gpio_irq_mask(struct irq_data *d)
 static void tc3589x_gpio_irq_unmask(struct irq_data *d)
 {
 	struct tc3589x_gpio *tc3589x_gpio = irq_data_get_irq_chip_data(d);
-	int offset = d->irq - tc3589x_gpio->irq_base;
+	int offset = d->hwirq;
 	int regoffset = offset / 8;
 	int mask = 1 << (offset % 8);
 
@@ -222,8 +242,9 @@ static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
 		while (stat) {
 			int bit = __ffs(stat);
 			int line = i * 8 + bit;
+			int virq = tc3589x_gpio_irq_get_virq(tc3589x_gpio, line);
 
-			handle_nested_irq(tc3589x_gpio->irq_base + line);
+			handle_nested_irq(virq);
 			stat &= ~(1 << bit);
 		}
 
@@ -233,51 +254,78 @@ static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio)
+static int tc3589x_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+				irq_hw_number_t hwirq)
 {
-	int base = tc3589x_gpio->irq_base;
-	int irq;
+	struct tc3589x *tc3589x_gpio = d->host_data;
 
-	for (irq = base; irq < base + tc3589x_gpio->chip.ngpio; irq++) {
-		irq_set_chip_data(irq, tc3589x_gpio);
-		irq_set_chip_and_handler(irq, &tc3589x_gpio_irq_chip,
-					 handle_simple_irq);
-		irq_set_nested_thread(irq, 1);
+	irq_set_chip_data(virq, tc3589x_gpio);
+	irq_set_chip_and_handler(virq, &tc3589x_gpio_irq_chip,
+				handle_simple_irq);
+	irq_set_nested_thread(virq, 1);
 #ifdef CONFIG_ARM
-		set_irq_flags(irq, IRQF_VALID);
+	set_irq_flags(virq, IRQF_VALID);
 #else
-		irq_set_noprobe(irq);
+	irq_set_noprobe(virq);
 #endif
-	}
 
 	return 0;
 }
 
-static void tc3589x_gpio_irq_remove(struct tc3589x_gpio *tc3589x_gpio)
+static void tc3589x_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
 {
-	int base = tc3589x_gpio->irq_base;
-	int irq;
-
-	for (irq = base; irq < base + tc3589x_gpio->chip.ngpio; irq++) {
 #ifdef CONFIG_ARM
-		set_irq_flags(irq, 0);
+	set_irq_flags(virq, 0);
 #endif
-		irq_set_chip_and_handler(irq, NULL, NULL);
-		irq_set_chip_data(irq, NULL);
+	irq_set_chip_and_handler(virq, NULL, NULL);
+	irq_set_chip_data(virq, NULL);
+}
+
+static struct irq_domain_ops tc3589x_irq_ops = {
+        .map    = tc3589x_gpio_irq_map,
+        .unmap  = tc3589x_gpio_irq_unmap,
+        .xlate  = irq_domain_xlate_twocell,
+};
+
+static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio,
+				struct device_node *np)
+{
+	int base = tc3589x_gpio->irq_base;
+
+	if (base) {
+		tc3589x_gpio->domain = irq_domain_add_legacy(
+			NULL, tc3589x_gpio->chip.ngpio, base,
+			0, &tc3589x_irq_ops, tc3589x_gpio);
+	}
+	else {
+		tc3589x_gpio->domain = irq_domain_add_linear(
+			np, tc3589x_gpio->chip.ngpio,
+			&tc3589x_irq_ops, tc3589x_gpio);
+	}
+
+	if (!tc3589x_gpio->domain) {
+		dev_err(tc3589x_gpio->dev, "Failed to create irqdomain\n");
+		return -ENOSYS;
 	}
+
+	return 0;
 }
 
 static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
 {
 	struct tc3589x *tc3589x = dev_get_drvdata(pdev->dev.parent);
 	struct tc3589x_gpio_platform_data *pdata;
+	struct device_node *np = pdev->dev.of_node;
 	struct tc3589x_gpio *tc3589x_gpio;
 	int ret;
 	int irq;
 
 	pdata = tc3589x->pdata->gpio;
-	if (!pdata)
-		return -ENODEV;
+
+	if (!(pdata || np)) {
+		dev_err(&pdev->dev, "No platform data or Device Tree found\n");
+		return -EINVAL;
+	}
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
@@ -295,9 +343,14 @@ static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
 	tc3589x_gpio->chip = template_chip;
 	tc3589x_gpio->chip.ngpio = tc3589x->num_gpio;
 	tc3589x_gpio->chip.dev = &pdev->dev;
-	tc3589x_gpio->chip.base = pdata->gpio_base;
+	tc3589x_gpio->chip.base = (pdata) ? pdata->gpio_base : -1;
 
-	tc3589x_gpio->irq_base = tc3589x->irq_base + TC3589x_INT_GPIO(0);
+#ifdef CONFIG_OF_GPIO
+        tc3589x_gpio->chip.of_node = np;
+#endif
+
+	tc3589x_gpio->irq_base = tc3589x->irq_base ?
+		tc3589x->irq_base + TC3589x_INT_GPIO(0) : 0;
 
 	/* Bring the GPIO module out of reset */
 	ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL,
@@ -305,7 +358,7 @@ static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto out_free;
 
-	ret = tc3589x_gpio_irq_init(tc3589x_gpio);
+	ret = tc3589x_gpio_irq_init(tc3589x_gpio, np);
 	if (ret)
 		goto out_free;
 
@@ -313,7 +366,7 @@ static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
 				   "tc3589x-gpio", tc3589x_gpio);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to get irq: %d\n", ret);
-		goto out_removeirq;
+		goto out_free;
 	}
 
 	ret = gpiochip_add(&tc3589x_gpio->chip);
@@ -322,7 +375,7 @@ static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
 		goto out_freeirq;
 	}
 
-	if (pdata->setup)
+	if (pdata && pdata->setup)
 		pdata->setup(tc3589x, tc3589x_gpio->chip.base);
 
 	platform_set_drvdata(pdev, tc3589x_gpio);
@@ -331,8 +384,6 @@ static int __devinit tc3589x_gpio_probe(struct platform_device *pdev)
 
 out_freeirq:
 	free_irq(irq, tc3589x_gpio);
-out_removeirq:
-	tc3589x_gpio_irq_remove(tc3589x_gpio);
 out_free:
 	kfree(tc3589x_gpio);
 	return ret;
@@ -346,7 +397,7 @@ static int __devexit tc3589x_gpio_remove(struct platform_device *pdev)
 	int irq = platform_get_irq(pdev, 0);
 	int ret;
 
-	if (pdata->remove)
+	if (pdata && pdata->remove)
 		pdata->remove(tc3589x, tc3589x_gpio->chip.base);
 
 	ret = gpiochip_remove(&tc3589x_gpio->chip);
@@ -357,7 +408,6 @@ static int __devexit tc3589x_gpio_remove(struct platform_device *pdev)
 	}
 
 	free_irq(irq, tc3589x_gpio);
-	tc3589x_gpio_irq_remove(tc3589x_gpio);
 
 	platform_set_drvdata(pdev, NULL);
 	kfree(tc3589x_gpio);
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index dc5184d5789..d982593d756 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -30,9 +30,6 @@
 
 #include <asm/mach/irq.h>
 
-#include <mach/iomap.h>
-#include <mach/suspend.h>
-
 #define GPIO_BANK(x)		((x) >> 5)
 #define GPIO_PORT(x)		(((x) >> 3) & 0x3)
 #define GPIO_BIT(x)		((x) & 0x7)
diff --git a/drivers/gpio/gpio-tps65912.c b/drivers/gpio/gpio-tps65912.c
index 79e66c00235..99106d1e2e5 100644
--- a/drivers/gpio/gpio-tps65912.c
+++ b/drivers/gpio/gpio-tps65912.c
@@ -70,7 +70,6 @@ static int tps65912_gpio_input(struct gpio_chip *gc, unsigned offset)
 
 	return tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset,
 								GPIO_CFG_MASK);
-
 }
 
 static struct gpio_chip template_chip = {
@@ -92,7 +91,8 @@ static int __devinit tps65912_gpio_probe(struct platform_device *pdev)
 	struct tps65912_gpio_data *tps65912_gpio;
 	int ret;
 
-	tps65912_gpio = kzalloc(sizeof(*tps65912_gpio), GFP_KERNEL);
+	tps65912_gpio = devm_kzalloc(&pdev->dev, sizeof(*tps65912_gpio),
+				     GFP_KERNEL);
 	if (tps65912_gpio == NULL)
 		return -ENOMEM;
 
@@ -105,28 +105,19 @@ static int __devinit tps65912_gpio_probe(struct platform_device *pdev)
 	ret = gpiochip_add(&tps65912_gpio->gpio_chip);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to register gpiochip, %d\n", ret);
-		goto err;
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, tps65912_gpio);
 
 	return ret;
-
-err:
-	kfree(tps65912_gpio);
-	return ret;
 }
 
 static int __devexit tps65912_gpio_remove(struct platform_device *pdev)
 {
 	struct tps65912_gpio_data  *tps65912_gpio = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = gpiochip_remove(&tps65912_gpio->gpio_chip);
-	if (ret == 0)
-		kfree(tps65912_gpio);
 
-	return ret;
+	return gpiochip_remove(&tps65912_gpio->gpio_chip);
 }
 
 static struct platform_driver tps65912_gpio_driver = {
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index 94256fe7bf3..c5f8ca233e1 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -51,6 +51,7 @@
 
 
 static struct gpio_chip twl_gpiochip;
+static int twl4030_gpio_base;
 static int twl4030_gpio_irq_base;
 
 /* genirq interfaces are not available to modules */
@@ -395,6 +396,29 @@ static int __devinit gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
 
 static int gpio_twl4030_remove(struct platform_device *pdev);
 
+static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
+{
+	struct twl4030_gpio_platform_data *omap_twl_info;
+
+	omap_twl_info = devm_kzalloc(dev, sizeof(*omap_twl_info), GFP_KERNEL);
+	if (!omap_twl_info)
+		return NULL;
+
+	omap_twl_info->use_leds = of_property_read_bool(dev->of_node,
+			"ti,use-leds");
+
+	of_property_read_u32(dev->of_node, "ti,debounce",
+			     &omap_twl_info->debounce);
+	of_property_read_u32(dev->of_node, "ti,mmc-cd",
+			     (u32 *)&omap_twl_info->mmc_cd);
+	of_property_read_u32(dev->of_node, "ti,pullups",
+			     &omap_twl_info->pullups);
+	of_property_read_u32(dev->of_node, "ti,pulldowns",
+			     &omap_twl_info->pulldowns);
+
+	return omap_twl_info;
+}
+
 static int __devinit gpio_twl4030_probe(struct platform_device *pdev)
 {
 	struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data;
@@ -427,49 +451,57 @@ no_irqs:
 	twl_gpiochip.ngpio = TWL4030_GPIO_MAX;
 	twl_gpiochip.dev = &pdev->dev;
 
-	if (pdata) {
-		twl_gpiochip.base = pdata->gpio_base;
+	if (node)
+		pdata = of_gpio_twl4030(&pdev->dev);
 
-		/*
-		 * NOTE:  boards may waste power if they don't set pullups
-		 * and pulldowns correctly ... default for non-ULPI pins is
-		 * pulldown, and some other pins may have external pullups
-		 * or pulldowns.  Careful!
-		 */
-		ret = gpio_twl4030_pulls(pdata->pullups, pdata->pulldowns);
-		if (ret)
-			dev_dbg(&pdev->dev, "pullups %.05x %.05x --> %d\n",
-					pdata->pullups, pdata->pulldowns,
-					ret);
-
-		ret = gpio_twl4030_debounce(pdata->debounce, pdata->mmc_cd);
-		if (ret)
-			dev_dbg(&pdev->dev, "debounce %.03x %.01x --> %d\n",
-					pdata->debounce, pdata->mmc_cd,
-					ret);
-
-		/*
-		 * NOTE: we assume VIBRA_CTL.VIBRA_EN, in MODULE_AUDIO_VOICE,
-		 * is (still) clear if use_leds is set.
-		 */
-		if (pdata->use_leds)
-			twl_gpiochip.ngpio += 2;
+	if (pdata == NULL) {
+		dev_err(&pdev->dev, "Platform data is missing\n");
+		return -ENXIO;
 	}
 
+	/*
+	 * NOTE:  boards may waste power if they don't set pullups
+	 * and pulldowns correctly ... default for non-ULPI pins is
+	 * pulldown, and some other pins may have external pullups
+	 * or pulldowns.  Careful!
+	 */
+	ret = gpio_twl4030_pulls(pdata->pullups, pdata->pulldowns);
+	if (ret)
+		dev_dbg(&pdev->dev, "pullups %.05x %.05x --> %d\n",
+			pdata->pullups, pdata->pulldowns, ret);
+
+	ret = gpio_twl4030_debounce(pdata->debounce, pdata->mmc_cd);
+	if (ret)
+		dev_dbg(&pdev->dev, "debounce %.03x %.01x --> %d\n",
+			pdata->debounce, pdata->mmc_cd, ret);
+
+	/*
+	 * NOTE: we assume VIBRA_CTL.VIBRA_EN, in MODULE_AUDIO_VOICE,
+	 * is (still) clear if use_leds is set.
+	 */
+	if (pdata->use_leds)
+		twl_gpiochip.ngpio += 2;
+
 	ret = gpiochip_add(&twl_gpiochip);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);
 		twl_gpiochip.ngpio = 0;
 		gpio_twl4030_remove(pdev);
-	} else if (pdata && pdata->setup) {
+		goto out;
+	}
+
+	twl4030_gpio_base = twl_gpiochip.base;
+
+	if (pdata && pdata->setup) {
 		int status;
 
 		status = pdata->setup(&pdev->dev,
-				pdata->gpio_base, TWL4030_GPIO_MAX);
+				twl4030_gpio_base, TWL4030_GPIO_MAX);
 		if (status)
 			dev_dbg(&pdev->dev, "setup --> %d\n", status);
 	}
 
+out:
 	return ret;
 }
 
@@ -481,7 +513,7 @@ static int gpio_twl4030_remove(struct platform_device *pdev)
 
 	if (pdata && pdata->teardown) {
 		status = pdata->teardown(&pdev->dev,
-				pdata->gpio_base, TWL4030_GPIO_MAX);
+				twl4030_gpio_base, TWL4030_GPIO_MAX);
 		if (status) {
 			dev_dbg(&pdev->dev, "teardown --> %d\n", status);
 			return status;
diff --git a/drivers/gpio/gpio-vt8500.c b/drivers/gpio/gpio-vt8500.c
new file mode 100644
index 00000000000..bcd8e4aa7c7
--- /dev/null
+++ b/drivers/gpio/gpio-vt8500.c
@@ -0,0 +1,316 @@
+/* drivers/gpio/gpio-vt8500.c
+ *
+ * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz>
+ * Based on arch/arm/mach-vt8500/gpio.c:
+ * - Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/bitops.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_device.h>
+
+/*
+	We handle GPIOs by bank, each bank containing up to 32 GPIOs covered
+	by one set of registers (although not all may be valid).
+
+	Because different SoC's have different register offsets, we pass the
+	register offsets as data in vt8500_gpio_dt_ids[].
+
+	A value of NO_REG is used to indicate that this register is not
+	supported. Only used for ->en at the moment.
+*/
+
+#define NO_REG	0xFFFF
+
+/*
+ * struct vt8500_gpio_bank_regoffsets
+ * @en: offset to enable register of the bank
+ * @dir: offset to direction register of the bank
+ * @data_out: offset to the data out register of the bank
+ * @data_in: offset to the data in register of the bank
+ * @ngpio: highest valid pin in this bank
+ */
+
+struct vt8500_gpio_bank_regoffsets {
+	unsigned int	en;
+	unsigned int	dir;
+	unsigned int	data_out;
+	unsigned int	data_in;
+	unsigned char	ngpio;
+};
+
+struct vt8500_gpio_data {
+	unsigned int				num_banks;
+	struct vt8500_gpio_bank_regoffsets	banks[];
+};
+
+#define VT8500_BANK(__en, __dir, __out, __in, __ngpio)		\
+{								\
+	.en = __en,						\
+	.dir = __dir,						\
+	.data_out = __out,					\
+	.data_in = __in,					\
+	.ngpio = __ngpio,					\
+}
+
+static struct vt8500_gpio_data vt8500_data = {
+	.num_banks	= 7,
+	.banks	= {
+		VT8500_BANK(0x00, 0x20, 0x40, 0x60, 26),
+		VT8500_BANK(0x04, 0x24, 0x44, 0x64, 28),
+		VT8500_BANK(0x08, 0x28, 0x48, 0x68, 31),
+		VT8500_BANK(0x0C, 0x2C, 0x4C, 0x6C, 19),
+		VT8500_BANK(0x10, 0x30, 0x50, 0x70, 19),
+		VT8500_BANK(0x14, 0x34, 0x54, 0x74, 23),
+		VT8500_BANK(NO_REG, 0x3C, 0x5C, 0x7C, 9),
+	},
+};
+
+static struct vt8500_gpio_data wm8505_data = {
+	.num_banks	= 10,
+	.banks	= {
+		VT8500_BANK(0x40, 0x68, 0x90, 0xB8, 8),
+		VT8500_BANK(0x44, 0x6C, 0x94, 0xBC, 32),
+		VT8500_BANK(0x48, 0x70, 0x98, 0xC0, 6),
+		VT8500_BANK(0x4C, 0x74, 0x9C, 0xC4, 16),
+		VT8500_BANK(0x50, 0x78, 0xA0, 0xC8, 25),
+		VT8500_BANK(0x54, 0x7C, 0xA4, 0xCC, 5),
+		VT8500_BANK(0x58, 0x80, 0xA8, 0xD0, 5),
+		VT8500_BANK(0x5C, 0x84, 0xAC, 0xD4, 12),
+		VT8500_BANK(0x60, 0x88, 0xB0, 0xD8, 16),
+		VT8500_BANK(0x64, 0x8C, 0xB4, 0xDC, 22),
+	},
+};
+
+/*
+ * No information about which bits are valid so we just make
+ * them all available until its figured out.
+ */
+static struct vt8500_gpio_data wm8650_data = {
+	.num_banks	= 9,
+	.banks	= {
+		VT8500_BANK(0x40, 0x80, 0xC0, 0x00, 32),
+		VT8500_BANK(0x44, 0x84, 0xC4, 0x04, 32),
+		VT8500_BANK(0x48, 0x88, 0xC8, 0x08, 32),
+		VT8500_BANK(0x4C, 0x8C, 0xCC, 0x0C, 32),
+		VT8500_BANK(0x50, 0x90, 0xD0, 0x10, 32),
+		VT8500_BANK(0x54, 0x94, 0xD4, 0x14, 32),
+		VT8500_BANK(0x58, 0x98, 0xD8, 0x18, 32),
+		VT8500_BANK(0x5C, 0x9C, 0xDC, 0x1C, 32),
+		VT8500_BANK(0x7C, 0xBC, 0xFC, 0x3C, 32),
+	},
+};
+
+struct vt8500_gpio_chip {
+	struct gpio_chip		chip;
+
+	const struct vt8500_gpio_bank_regoffsets *regs;
+	void __iomem	*base;
+};
+
+
+#define to_vt8500(__chip) container_of(__chip, struct vt8500_gpio_chip, chip)
+
+static int vt8500_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	u32 val;
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+
+	if (vt8500_chip->regs->en == NO_REG)
+		return 0;
+
+	val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->en);
+	val |= BIT(offset);
+	writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->en);
+
+	return 0;
+}
+
+static void vt8500_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+	u32 val;
+
+	if (vt8500_chip->regs->en == NO_REG)
+		return;
+
+	val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->en);
+	val &= ~BIT(offset);
+	writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->en);
+}
+
+static int vt8500_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+
+	u32 val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->dir);
+	val &= ~BIT(offset);
+	writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->dir);
+
+	return 0;
+}
+
+static int vt8500_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+								int value)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+
+	u32 val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->dir);
+	val |= BIT(offset);
+	writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->dir);
+
+	if (value) {
+		val = readl_relaxed(vt8500_chip->base +
+						vt8500_chip->regs->data_out);
+		val |= BIT(offset);
+		writel_relaxed(val, vt8500_chip->base +
+						vt8500_chip->regs->data_out);
+	}
+	return 0;
+}
+
+static int vt8500_gpio_get_value(struct gpio_chip *chip, unsigned offset)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+
+	return (readl_relaxed(vt8500_chip->base + vt8500_chip->regs->data_in) >>
+								offset) & 1;
+}
+
+static void vt8500_gpio_set_value(struct gpio_chip *chip, unsigned offset,
+								int value)
+{
+	struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
+
+	u32 val = readl_relaxed(vt8500_chip->base +
+						vt8500_chip->regs->data_out);
+	if (value)
+		val |= BIT(offset);
+	else
+		val &= ~BIT(offset);
+
+	writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->data_out);
+}
+
+static int vt8500_of_xlate(struct gpio_chip *gc,
+			    const struct of_phandle_args *gpiospec, u32 *flags)
+{
+	/* bank if specificed in gpiospec->args[0] */
+	if (flags)
+		*flags = gpiospec->args[2];
+
+	return gpiospec->args[1];
+}
+
+static int vt8500_add_chips(struct platform_device *pdev, void __iomem *base,
+				const struct vt8500_gpio_data *data)
+{
+	struct vt8500_gpio_chip *vtchip;
+	struct gpio_chip *chip;
+	int i;
+	int pin_cnt = 0;
+
+	vtchip = devm_kzalloc(&pdev->dev,
+			sizeof(struct vt8500_gpio_chip) * data->num_banks,
+			GFP_KERNEL);
+	if (!vtchip) {
+		pr_err("%s: failed to allocate chip memory\n", __func__);
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < data->num_banks; i++) {
+		vtchip[i].base = base;
+		vtchip[i].regs = &data->banks[i];
+
+		chip = &vtchip[i].chip;
+
+		chip->of_xlate = vt8500_of_xlate;
+		chip->of_gpio_n_cells = 3;
+		chip->of_node = pdev->dev.of_node;
+
+		chip->request = vt8500_gpio_request;
+		chip->free = vt8500_gpio_free;
+		chip->direction_input = vt8500_gpio_direction_input;
+		chip->direction_output = vt8500_gpio_direction_output;
+		chip->get = vt8500_gpio_get_value;
+		chip->set = vt8500_gpio_set_value;
+		chip->can_sleep = 0;
+		chip->base = pin_cnt;
+		chip->ngpio = data->banks[i].ngpio;
+
+		pin_cnt += data->banks[i].ngpio;
+
+		gpiochip_add(chip);
+	}
+	return 0;
+}
+
+static struct of_device_id vt8500_gpio_dt_ids[] = {
+	{ .compatible = "via,vt8500-gpio", .data = &vt8500_data, },
+	{ .compatible = "wm,wm8505-gpio", .data = &wm8505_data, },
+	{ .compatible = "wm,wm8650-gpio", .data = &wm8650_data, },
+	{ /* Sentinel */ },
+};
+
+static int __devinit vt8500_gpio_probe(struct platform_device *pdev)
+{
+	void __iomem *gpio_base;
+	struct device_node *np;
+	const struct of_device_id *of_id =
+				of_match_device(vt8500_gpio_dt_ids, &pdev->dev);
+
+	if (!of_id) {
+		dev_err(&pdev->dev, "Failed to find gpio controller\n");
+		return -ENODEV;
+	}
+
+	np = pdev->dev.of_node;
+	if (!np) {
+		dev_err(&pdev->dev, "Missing GPIO description in devicetree\n");
+		return -EFAULT;
+	}
+
+	gpio_base = of_iomap(np, 0);
+	if (!gpio_base) {
+		dev_err(&pdev->dev, "Unable to map GPIO registers\n");
+		of_node_put(np);
+		return -ENOMEM;
+	}
+
+	vt8500_add_chips(pdev, gpio_base, of_id->data);
+
+	return 0;
+}
+
+static struct platform_driver vt8500_gpio_driver = {
+	.probe		= vt8500_gpio_probe,
+	.driver		= {
+		.name	= "vt8500-gpio",
+		.owner	= THIS_MODULE,
+		.of_match_table = vt8500_gpio_dt_ids,
+	},
+};
+
+module_platform_driver(vt8500_gpio_driver);
+
+MODULE_DESCRIPTION("VT8500 GPIO Driver");
+MODULE_AUTHOR("Tony Prisk <linux@prisktech.co.nz>");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, vt8500_gpio_dt_ids);
diff --git a/drivers/gpio/gpio-wm831x.c b/drivers/gpio/gpio-wm831x.c
index e56a2165641..b6eda35089d 100644
--- a/drivers/gpio/gpio-wm831x.c
+++ b/drivers/gpio/gpio-wm831x.c
@@ -250,7 +250,8 @@ static int __devinit wm831x_gpio_probe(struct platform_device *pdev)
 	struct wm831x_gpio *wm831x_gpio;
 	int ret;
 
-	wm831x_gpio = kzalloc(sizeof(*wm831x_gpio), GFP_KERNEL);
+	wm831x_gpio = devm_kzalloc(&pdev->dev, sizeof(*wm831x_gpio),
+				   GFP_KERNEL);
 	if (wm831x_gpio == NULL)
 		return -ENOMEM;
 
@@ -265,30 +266,20 @@ static int __devinit wm831x_gpio_probe(struct platform_device *pdev)
 
 	ret = gpiochip_add(&wm831x_gpio->gpio_chip);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",
-			ret);
-		goto err;
+		dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, wm831x_gpio);
 
 	return ret;
-
-err:
-	kfree(wm831x_gpio);
-	return ret;
 }
 
 static int __devexit wm831x_gpio_remove(struct platform_device *pdev)
 {
 	struct wm831x_gpio *wm831x_gpio = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = gpiochip_remove(&wm831x_gpio->gpio_chip);
-	if (ret == 0)
-		kfree(wm831x_gpio);
 
-	return ret;
+	return  gpiochip_remove(&wm831x_gpio->gpio_chip);
 }
 
 static struct platform_driver wm831x_gpio_driver = {
diff --git a/drivers/gpio/gpio-wm8350.c b/drivers/gpio/gpio-wm8350.c
index a06af515483..fb429388939 100644
--- a/drivers/gpio/gpio-wm8350.c
+++ b/drivers/gpio/gpio-wm8350.c
@@ -116,7 +116,8 @@ static int __devinit wm8350_gpio_probe(struct platform_device *pdev)
 	struct wm8350_gpio_data *wm8350_gpio;
 	int ret;
 
-	wm8350_gpio = kzalloc(sizeof(*wm8350_gpio), GFP_KERNEL);
+	wm8350_gpio = devm_kzalloc(&pdev->dev, sizeof(*wm8350_gpio),
+				   GFP_KERNEL);
 	if (wm8350_gpio == NULL)
 		return -ENOMEM;
 
@@ -131,30 +132,20 @@ static int __devinit wm8350_gpio_probe(struct platform_device *pdev)
 
 	ret = gpiochip_add(&wm8350_gpio->gpio_chip);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",
-			ret);
-		goto err;
+		dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, wm8350_gpio);
 
 	return ret;
-
-err:
-	kfree(wm8350_gpio);
-	return ret;
 }
 
 static int __devexit wm8350_gpio_remove(struct platform_device *pdev)
 {
 	struct wm8350_gpio_data *wm8350_gpio = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = gpiochip_remove(&wm8350_gpio->gpio_chip);
-	if (ret == 0)
-		kfree(wm8350_gpio);
 
-	return ret;
+	return gpiochip_remove(&wm8350_gpio->gpio_chip);
 }
 
 static struct platform_driver wm8350_gpio_driver = {
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index a18c4aa68b1..f1a45997aea 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -82,7 +82,7 @@ int of_get_named_gpio_flags(struct device_node *np, const char *propname,
 	gpiochip_find(&gg_data, of_gpiochip_find_and_xlate);
 
 	of_node_put(gg_data.gpiospec.np);
-	pr_debug("%s exited with status %d\n", __func__, ret);
+	pr_debug("%s exited with status %d\n", __func__, gg_data.out_gpio);
 	return gg_data.out_gpio;
 }
 EXPORT_SYMBOL(of_get_named_gpio_flags);
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index de0213c9d11..5d6c71edc73 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1773,56 +1773,102 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 	}
 }
 
-static int gpiolib_show(struct seq_file *s, void *unused)
+static void *gpiolib_seq_start(struct seq_file *s, loff_t *pos)
 {
-	struct gpio_chip	*chip = NULL;
-	unsigned		gpio;
-	int			started = 0;
+	struct gpio_chip *chip = NULL;
+	unsigned int gpio;
+	void *ret = NULL;
+	loff_t index = 0;
 
 	/* REVISIT this isn't locked against gpio_chip removal ... */
 
 	for (gpio = 0; gpio_is_valid(gpio); gpio++) {
-		struct device *dev;
-
-		if (chip == gpio_desc[gpio].chip)
+		if (gpio_desc[gpio].chip == chip)
 			continue;
+
 		chip = gpio_desc[gpio].chip;
 		if (!chip)
 			continue;
 
-		seq_printf(s, "%sGPIOs %d-%d",
-				started ? "\n" : "",
-				chip->base, chip->base + chip->ngpio - 1);
-		dev = chip->dev;
-		if (dev)
-			seq_printf(s, ", %s/%s",
-				dev->bus ? dev->bus->name : "no-bus",
-				dev_name(dev));
-		if (chip->label)
-			seq_printf(s, ", %s", chip->label);
-		if (chip->can_sleep)
-			seq_printf(s, ", can sleep");
-		seq_printf(s, ":\n");
-
-		started = 1;
-		if (chip->dbg_show)
-			chip->dbg_show(s, chip);
-		else
-			gpiolib_dbg_show(s, chip);
+		if (index++ >= *pos) {
+			ret = chip;
+			break;
+		}
 	}
+
+	s->private = "";
+
+	return ret;
+}
+
+static void *gpiolib_seq_next(struct seq_file *s, void *v, loff_t *pos)
+{
+	struct gpio_chip *chip = v;
+	unsigned int gpio;
+	void *ret = NULL;
+
+	/* skip GPIOs provided by the current chip */
+	for (gpio = chip->base + chip->ngpio; gpio_is_valid(gpio); gpio++) {
+		chip = gpio_desc[gpio].chip;
+		if (chip) {
+			ret = chip;
+			break;
+		}
+	}
+
+	s->private = "\n";
+	++*pos;
+
+	return ret;
+}
+
+static void gpiolib_seq_stop(struct seq_file *s, void *v)
+{
+}
+
+static int gpiolib_seq_show(struct seq_file *s, void *v)
+{
+	struct gpio_chip *chip = v;
+	struct device *dev;
+
+	seq_printf(s, "%sGPIOs %d-%d", (char *)s->private,
+			chip->base, chip->base + chip->ngpio - 1);
+	dev = chip->dev;
+	if (dev)
+		seq_printf(s, ", %s/%s", dev->bus ? dev->bus->name : "no-bus",
+			dev_name(dev));
+	if (chip->label)
+		seq_printf(s, ", %s", chip->label);
+	if (chip->can_sleep)
+		seq_printf(s, ", can sleep");
+	seq_printf(s, ":\n");
+
+	if (chip->dbg_show)
+		chip->dbg_show(s, chip);
+	else
+		gpiolib_dbg_show(s, chip);
+
 	return 0;
 }
 
+static const struct seq_operations gpiolib_seq_ops = {
+	.start = gpiolib_seq_start,
+	.next = gpiolib_seq_next,
+	.stop = gpiolib_seq_stop,
+	.show = gpiolib_seq_show,
+};
+
 static int gpiolib_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, gpiolib_show, NULL);
+	return seq_open(file, &gpiolib_seq_ops);
 }
 
 static const struct file_operations gpiolib_operations = {
+	.owner		= THIS_MODULE,
 	.open		= gpiolib_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-	.release	= single_release,
+	.release	= seq_release,
 };
 
 static int __init gpiolib_debugfs_init(void)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 23120c00a88..90e28081712 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -22,6 +22,7 @@ menuconfig DRM
 config DRM_USB
 	tristate
 	depends on DRM
+	depends on USB_ARCH_HAS_HCD
 	select USB
 
 config DRM_KMS_HELPER
diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index d0c4574ef49..36164806b9d 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -193,6 +193,9 @@ static const struct file_operations ast_fops = {
 	.mmap = ast_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.read = drm_read,
 };
 
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 7282c081fb5..a712cafcfa1 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -841,7 +841,7 @@ int ast_cursor_init(struct drm_device *dev)
 
 	ast->cursor_cache = obj;
 	ast->cursor_cache_gpu_addr = gpu_addr;
-	DRM_ERROR("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr);
+	DRM_DEBUG_KMS("pinned cursor cache at %llx\n", ast->cursor_cache_gpu_addr);
 	return 0;
 fail:
 	return ret;
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
index 7053140c659..b83a2d7ddd1 100644
--- a/drivers/gpu/drm/cirrus/cirrus_drv.c
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -74,6 +74,9 @@ static const struct file_operations cirrus_driver_fops = {
 	.unlocked_ioctl = drm_ioctl,
 	.mmap = cirrus_mmap,
 	.poll = drm_poll,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.fasync = drm_fasync,
 };
 static struct drm_driver driver = {
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 08a7aa722d6..6fbfc244748 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1981,7 +1981,7 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -EINVAL;
 
-	if (!req->flags)
+	if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
 		return -EINVAL;
 
 	mutex_lock(&dev->mode_config.mutex);
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 3252e7067d8..8fa9d52820d 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -968,7 +968,7 @@ static void output_poll_execute(struct work_struct *work)
 	}
 
 	if (repoll)
-		queue_delayed_work(system_nrt_wq, delayed_work, DRM_OUTPUT_POLL_PERIOD);
+		schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD);
 }
 
 void drm_kms_helper_poll_disable(struct drm_device *dev)
@@ -993,7 +993,7 @@ void drm_kms_helper_poll_enable(struct drm_device *dev)
 	}
 
 	if (poll)
-		queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD);
+		schedule_delayed_work(&dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD);
 }
 EXPORT_SYMBOL(drm_kms_helper_poll_enable);
 
@@ -1020,6 +1020,6 @@ void drm_helper_hpd_irq_event(struct drm_device *dev)
 	/* kill timer and schedule immediate execution, this doesn't block */
 	cancel_delayed_work(&dev->mode_config.output_poll_work);
 	if (drm_kms_helper_poll)
-		queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, 0);
+		schedule_delayed_work(&dev->mode_config.output_poll_work, 0);
 }
 EXPORT_SYMBOL(drm_helper_hpd_irq_event);
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index a8743c399e8..b7ee230572b 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -87,6 +87,9 @@ static struct edid_quirk {
 	int product_id;
 	u32 quirks;
 } edid_quirk_list[] = {
+	/* ASUS VW222S */
+	{ "ACI", 0x22a2, EDID_QUIRK_FORCE_REDUCED_BLANKING },
+
 	/* Acer AL1706 */
 	{ "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
 	/* Acer F51 */
diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c
index 66d4a28ad5a..0303935d10e 100644
--- a/drivers/gpu/drm/drm_edid_load.c
+++ b/drivers/gpu/drm/drm_edid_load.c
@@ -119,7 +119,7 @@ static int edid_load(struct drm_connector *connector, char *name,
 {
 	const struct firmware *fw;
 	struct platform_device *pdev;
-	u8 *fwdata = NULL, *edid;
+	u8 *fwdata = NULL, *edid, *new_edid;
 	int fwsize, expected;
 	int builtin = 0, err = 0;
 	int i, valid_extensions = 0;
@@ -195,12 +195,14 @@ static int edid_load(struct drm_connector *connector, char *name,
 		    "\"%s\" for connector \"%s\"\n", valid_extensions,
 		    edid[0x7e], name, connector_name);
 		edid[0x7e] = valid_extensions;
-		edid = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH,
+		new_edid = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH,
 		    GFP_KERNEL);
-		if (edid == NULL) {
+		if (new_edid == NULL) {
 			err = -ENOMEM;
+			kfree(edid);
 			goto relfw_out;
 		}
+		edid = new_edid;
 	}
 
 	connector->display_info.raw_edid = edid;
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 5062eec673f..433d2fad1fe 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -251,7 +251,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 	filp->private_data = priv;
 	priv->filp = filp;
 	priv->uid = current_euid();
-	priv->pid = task_pid_nr(current);
+	priv->pid = get_pid(task_pid(current));
 	priv->minor = idr_find(&drm_minors_idr, minor_id);
 	priv->ioctl_count = 0;
 	/* for compatibility root is always authenticated */
@@ -524,6 +524,7 @@ int drm_release(struct inode *inode, struct file *filp)
 	if (drm_core_check_feature(dev, DRIVER_PRIME))
 		drm_prime_destroy_file_private(&file_priv->prime);
 
+	put_pid(file_priv->pid);
 	kfree(file_priv);
 
 	/* ========================================================
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
index 8928edbb94c..eb0af393e6e 100644
--- a/drivers/gpu/drm/drm_info.c
+++ b/drivers/gpu/drm/drm_info.c
@@ -191,8 +191,9 @@ int drm_clients_info(struct seq_file *m, void *data)
 		seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
 			   priv->authenticated ? 'y' : 'n',
 			   priv->minor->index,
-			   priv->pid,
-			   priv->uid, priv->magic, priv->ioctl_count);
+			   pid_vnr(priv->pid),
+			   from_kuid_munged(seq_user_ns(m), priv->uid),
+			   priv->magic, priv->ioctl_count);
 	}
 	mutex_unlock(&dev->struct_mutex);
 	return 0;
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 64a62c69731..39a43834cef 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -215,8 +215,8 @@ int drm_getclient(struct drm_device *dev, void *data,
 	list_for_each_entry(pt, &dev->filelist, lhead) {
 		if (i++ >= idx) {
 			client->auth = pt->authenticated;
-			client->pid = pt->pid;
-			client->uid = pt->uid;
+			client->pid = pid_vnr(pt->pid);
+			client->uid = from_kuid_munged(current_user_ns(), pt->uid);
 			client->magic = pt->magic;
 			client->iocs = pt->ioctl_count;
 			mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index b7adb4a967f..28637c181b1 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -706,9 +706,6 @@ void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags)
 	p->crtc_vblank_end = max(p->crtc_vsync_end, p->crtc_vtotal);
 	p->crtc_hblank_start = min(p->crtc_hsync_start, p->crtc_hdisplay);
 	p->crtc_hblank_end = max(p->crtc_hsync_end, p->crtc_htotal);
-
-	p->crtc_hadjusted = false;
-	p->crtc_vadjusted = false;
 }
 EXPORT_SYMBOL(drm_mode_set_crtcinfo);
 
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index 371c695322d..da457b18eaa 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -89,7 +89,7 @@ static const struct file_operations drm_proc_fops = {
  * Create a given set of proc files represented by an array of
  * gdm_proc_lists in the given root directory.
  */
-int drm_proc_create_files(struct drm_info_list *files, int count,
+static int drm_proc_create_files(struct drm_info_list *files, int count,
 			  struct proc_dir_entry *root, struct drm_minor *minor)
 {
 	struct drm_device *dev = minor->dev;
@@ -172,7 +172,7 @@ int drm_proc_init(struct drm_minor *minor, int minor_id,
 	return 0;
 }
 
-int drm_proc_remove_files(struct drm_info_list *files, int count,
+static int drm_proc_remove_files(struct drm_info_list *files, int count,
 			  struct drm_minor *minor)
 {
 	struct list_head *pos, *q;
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 7f5096763b7..59a26e577b5 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -36,6 +36,6 @@ config DRM_EXYNOS_VIDI
 
 config DRM_EXYNOS_G2D
 	bool "Exynos DRM G2D"
-	depends on DRM_EXYNOS
+	depends on DRM_EXYNOS && !VIDEO_SAMSUNG_S5P_G2D
 	help
 	  Choose this option if you want to use Exynos G2D for DRM.
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
index 613bf8a5d9b..ae13febe0ea 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
@@ -163,6 +163,12 @@ static void exynos_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
 	/* TODO */
 }
 
+static int exynos_gem_dmabuf_mmap(struct dma_buf *dma_buf,
+	struct vm_area_struct *vma)
+{
+	return -ENOTTY;
+}
+
 static struct dma_buf_ops exynos_dmabuf_ops = {
 	.map_dma_buf		= exynos_gem_map_dma_buf,
 	.unmap_dma_buf		= exynos_gem_unmap_dma_buf,
@@ -170,6 +176,7 @@ static struct dma_buf_ops exynos_dmabuf_ops = {
 	.kmap_atomic		= exynos_gem_dmabuf_kmap_atomic,
 	.kunmap			= exynos_gem_dmabuf_kunmap,
 	.kunmap_atomic		= exynos_gem_dmabuf_kunmap_atomic,
+	.mmap			= exynos_gem_dmabuf_mmap,
 	.release		= exynos_dmabuf_release,
 };
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index ebacec6f1e4..d0707193745 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -160,7 +160,6 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 	if (!file_priv)
 		return -ENOMEM;
 
-	drm_prime_init_file_private(&file->prime);
 	file->driver_priv = file_priv;
 
 	return exynos_drm_subdrv_open(dev, file);
@@ -184,7 +183,6 @@ static void exynos_drm_preclose(struct drm_device *dev,
 			e->base.destroy(&e->base);
 		}
 	}
-	drm_prime_destroy_file_private(&file->prime);
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
 	exynos_drm_subdrv_close(dev, file);
@@ -241,6 +239,9 @@ static const struct file_operations exynos_drm_driver_fops = {
 	.poll		= drm_poll,
 	.read		= drm_read,
 	.unlocked_ioctl	= drm_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.release	= drm_release,
 };
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index a68d2b313f0..b19cd93e704 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -831,11 +831,6 @@ static int __devinit fimd_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "failed to find registers\n");
-		ret = -ENOENT;
-		goto err_clk;
-	}
 
 	ctx->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!ctx->regs) {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index d2d88f22a03..2526e82bea3 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -129,7 +129,6 @@ struct g2d_runqueue_node {
 struct g2d_data {
 	struct device			*dev;
 	struct clk			*gate_clk;
-	struct resource			*regs_res;
 	void __iomem			*regs;
 	int				irq;
 	struct workqueue_struct		*g2d_workq;
@@ -751,7 +750,7 @@ static int __devinit g2d_probe(struct platform_device *pdev)
 	struct exynos_drm_subdrv *subdrv;
 	int ret;
 
-	g2d = kzalloc(sizeof(*g2d), GFP_KERNEL);
+	g2d = devm_kzalloc(&pdev->dev, sizeof(*g2d), GFP_KERNEL);
 	if (!g2d) {
 		dev_err(dev, "failed to allocate driver data\n");
 		return -ENOMEM;
@@ -759,10 +758,8 @@ static int __devinit g2d_probe(struct platform_device *pdev)
 
 	g2d->runqueue_slab = kmem_cache_create("g2d_runqueue_slab",
 			sizeof(struct g2d_runqueue_node), 0, 0, NULL);
-	if (!g2d->runqueue_slab) {
-		ret = -ENOMEM;
-		goto err_free_mem;
-	}
+	if (!g2d->runqueue_slab)
+		return -ENOMEM;
 
 	g2d->dev = dev;
 
@@ -794,38 +791,26 @@ static int __devinit g2d_probe(struct platform_device *pdev)
 	pm_runtime_enable(dev);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "failed to get I/O memory\n");
-		ret = -ENOENT;
-		goto err_put_clk;
-	}
 
-	g2d->regs_res = request_mem_region(res->start, resource_size(res),
-					   dev_name(dev));
-	if (!g2d->regs_res) {
-		dev_err(dev, "failed to request I/O memory\n");
-		ret = -ENOENT;
-		goto err_put_clk;
-	}
-
-	g2d->regs = ioremap(res->start, resource_size(res));
+	g2d->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!g2d->regs) {
 		dev_err(dev, "failed to remap I/O memory\n");
 		ret = -ENXIO;
-		goto err_release_res;
+		goto err_put_clk;
 	}
 
 	g2d->irq = platform_get_irq(pdev, 0);
 	if (g2d->irq < 0) {
 		dev_err(dev, "failed to get irq\n");
 		ret = g2d->irq;
-		goto err_unmap_base;
+		goto err_put_clk;
 	}
 
-	ret = request_irq(g2d->irq, g2d_irq_handler, 0, "drm_g2d", g2d);
+	ret = devm_request_irq(&pdev->dev, g2d->irq, g2d_irq_handler, 0,
+								"drm_g2d", g2d);
 	if (ret < 0) {
 		dev_err(dev, "irq request failed\n");
-		goto err_unmap_base;
+		goto err_put_clk;
 	}
 
 	platform_set_drvdata(pdev, g2d);
@@ -838,7 +823,7 @@ static int __devinit g2d_probe(struct platform_device *pdev)
 	ret = exynos_drm_subdrv_register(subdrv);
 	if (ret < 0) {
 		dev_err(dev, "failed to register drm g2d device\n");
-		goto err_free_irq;
+		goto err_put_clk;
 	}
 
 	dev_info(dev, "The exynos g2d(ver %d.%d) successfully probed\n",
@@ -846,13 +831,6 @@ static int __devinit g2d_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_free_irq:
-	free_irq(g2d->irq, g2d);
-err_unmap_base:
-	iounmap(g2d->regs);
-err_release_res:
-	release_resource(g2d->regs_res);
-	kfree(g2d->regs_res);
 err_put_clk:
 	pm_runtime_disable(dev);
 	clk_put(g2d->gate_clk);
@@ -862,8 +840,6 @@ err_destroy_workqueue:
 	destroy_workqueue(g2d->g2d_workq);
 err_destroy_slab:
 	kmem_cache_destroy(g2d->runqueue_slab);
-err_free_mem:
-	kfree(g2d);
 	return ret;
 }
 
@@ -873,24 +849,18 @@ static int __devexit g2d_remove(struct platform_device *pdev)
 
 	cancel_work_sync(&g2d->runqueue_work);
 	exynos_drm_subdrv_unregister(&g2d->subdrv);
-	free_irq(g2d->irq, g2d);
 
 	while (g2d->runqueue_node) {
 		g2d_free_runqueue_node(g2d, g2d->runqueue_node);
 		g2d->runqueue_node = g2d_get_runqueue_node(g2d);
 	}
 
-	iounmap(g2d->regs);
-	release_resource(g2d->regs_res);
-	kfree(g2d->regs_res);
-
 	pm_runtime_disable(&pdev->dev);
 	clk_put(g2d->gate_clk);
 
 	g2d_fini_cmdlist(g2d);
 	destroy_workqueue(g2d->g2d_workq);
 	kmem_cache_destroy(g2d->runqueue_slab);
-	kfree(g2d);
 
 	return 0;
 }
@@ -908,7 +878,7 @@ static int g2d_suspend(struct device *dev)
 		/* FIXME: good range? */
 		usleep_range(500, 1000);
 
-	flush_work_sync(&g2d->runqueue_work);
+	flush_work(&g2d->runqueue_work);
 
 	return 0;
 }
@@ -924,7 +894,7 @@ static int g2d_resume(struct device *dev)
 }
 #endif
 
-SIMPLE_DEV_PM_OPS(g2d_pm_ops, g2d_suspend, g2d_resume);
+static SIMPLE_DEV_PM_OPS(g2d_pm_ops, g2d_suspend, g2d_resume);
 
 struct platform_driver g2d_driver = {
 	.probe		= g2d_probe,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index f9efde40c09..a38051c95ec 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -122,7 +122,7 @@ fail:
 		__free_page(pages[i]);
 
 	drm_free_large(pages);
-	return ERR_PTR(PTR_ERR(p));
+	return ERR_CAST(p);
 }
 
 static void exynos_gem_put_pages(struct drm_gem_object *obj,
@@ -662,7 +662,7 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
 	 */
 
 	args->pitch = args->width * ((args->bpp + 7) / 8);
-	args->size = PAGE_ALIGN(args->pitch * args->height);
+	args->size = args->pitch * args->height;
 
 	exynos_gem_obj = exynos_drm_gem_create(dev, args->flags, args->size);
 	if (IS_ERR(exynos_gem_obj))
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
index 8ffcdf8b9e2..3fdf0b65f47 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
@@ -345,7 +345,7 @@ static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx) {
 		DRM_LOG_KMS("failed to alloc common hdmi context.\n");
 		return -ENOMEM;
@@ -371,7 +371,6 @@ static int __devexit exynos_drm_hdmi_remove(struct platform_device *pdev)
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
 	exynos_drm_subdrv_unregister(&ctx->subdrv);
-	kfree(ctx);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index b89829e5043..e1f94b746bd 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -29,7 +29,6 @@ static const uint32_t formats[] = {
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_ARGB8888,
 	DRM_FORMAT_NV12,
-	DRM_FORMAT_NV12M,
 	DRM_FORMAT_NV12MT,
 };
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index bb1550c4dd5..537027a74fd 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -633,7 +633,7 @@ static int __devinit vidi_probe(struct platform_device *pdev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
@@ -673,8 +673,6 @@ static int __devexit vidi_remove(struct platform_device *pdev)
 		ctx->raw_edid = NULL;
 	}
 
-	kfree(ctx);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 409e2ec1207..a6aea6f3ea1 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2172,7 +2172,7 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata)
 
 	DRM_DEBUG_KMS("HDMI resource init\n");
 
-	memset(res, 0, sizeof *res);
+	memset(res, 0, sizeof(*res));
 
 	/* get clocks, power */
 	res->hdmi = clk_get(dev, "hdmi");
@@ -2204,7 +2204,7 @@ static int __devinit hdmi_resources_init(struct hdmi_context *hdata)
 	clk_set_parent(res->sclk_hdmi, res->sclk_pixel);
 
 	res->regul_bulk = kzalloc(ARRAY_SIZE(supply) *
-		sizeof res->regul_bulk[0], GFP_KERNEL);
+		sizeof(res->regul_bulk[0]), GFP_KERNEL);
 	if (!res->regul_bulk) {
 		DRM_ERROR("failed to get memory for regulators\n");
 		goto fail;
@@ -2243,7 +2243,7 @@ static int hdmi_resources_cleanup(struct hdmi_context *hdata)
 		clk_put(res->sclk_hdmi);
 	if (!IS_ERR_OR_NULL(res->hdmi))
 		clk_put(res->hdmi);
-	memset(res, 0, sizeof *res);
+	memset(res, 0, sizeof(*res));
 
 	return 0;
 }
@@ -2312,11 +2312,6 @@ static int __devinit hdmi_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		DRM_ERROR("failed to find registers\n");
-		ret = -ENOENT;
-		goto err_resource;
-	}
 
 	hdata->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hdata->regs) {
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 30fcc12f81d..25b97d5e5fc 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -236,11 +236,11 @@ static inline void vp_filter_set(struct mixer_resources *res,
 static void vp_default_filter(struct mixer_resources *res)
 {
 	vp_filter_set(res, VP_POLY8_Y0_LL,
-		filter_y_horiz_tap8, sizeof filter_y_horiz_tap8);
+		filter_y_horiz_tap8, sizeof(filter_y_horiz_tap8));
 	vp_filter_set(res, VP_POLY4_Y0_LL,
-		filter_y_vert_tap4, sizeof filter_y_vert_tap4);
+		filter_y_vert_tap4, sizeof(filter_y_vert_tap4));
 	vp_filter_set(res, VP_POLY4_C0_LL,
-		filter_cr_horiz_tap4, sizeof filter_cr_horiz_tap4);
+		filter_cr_horiz_tap4, sizeof(filter_cr_horiz_tap4));
 }
 
 static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable)
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
index 0f9b7db80f6..cf49ba5a54b 100644
--- a/drivers/gpu/drm/gma500/oaktrail_device.c
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -476,6 +476,7 @@ static const struct psb_offset oaktrail_regmap[2] = {
 		.pos = DSPAPOS,
 		.surf = DSPASURF,
 		.addr = MRST_DSPABASE,
+		.base = MRST_DSPABASE,
 		.status = PIPEASTAT,
 		.linoff = DSPALINOFF,
 		.tileoff = DSPATILEOFF,
@@ -499,6 +500,7 @@ static const struct psb_offset oaktrail_regmap[2] = {
 		.pos = DSPBPOS,
 		.surf = DSPBSURF,
 		.addr = DSPBBASE,
+		.base = DSPBBASE,
 		.status = PIPEBSTAT,
 		.linoff = DSPBLINOFF,
 		.tileoff = DSPBTILEOFF,
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index 30dc22a7156..8033526bb53 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -1362,6 +1362,9 @@ void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 	    (struct drm_connector **) (psb_intel_crtc + 1);
 	psb_intel_crtc->mode_set.num_connectors = 0;
 	psb_intel_cursor_init(dev, psb_intel_crtc);
+
+	/* Set to true so that the pipe is forced off on initial config. */
+	psb_intel_crtc->active = true;
 }
 
 int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 57d892eaaa6..463ec6871fe 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -115,6 +115,9 @@ static const struct file_operations i810_buffer_fops = {
 	.unlocked_ioctl = drm_ioctl,
 	.mmap = i810_mmap_buffers,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index f9924ad04d0..48cfcca2b35 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -51,6 +51,9 @@ static const struct file_operations i810_driver_fops = {
 	.mmap = drm_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 9cf7dfe022b..914c0dfabe6 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1587,6 +1587,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	spin_lock_init(&dev_priv->irq_lock);
 	spin_lock_init(&dev_priv->error_lock);
 	spin_lock_init(&dev_priv->rps_lock);
+	spin_lock_init(&dev_priv->dpio_lock);
 
 	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
 		dev_priv->num_pipe = 3;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ed22612bc84..a24ffbe97c0 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -346,11 +346,40 @@ static const struct pci_device_id pciidlist[] = {		/* aka */
 	INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */
 	INTEL_VGA_DEVICE(0x0402, &intel_haswell_d_info), /* GT1 desktop */
 	INTEL_VGA_DEVICE(0x0412, &intel_haswell_d_info), /* GT2 desktop */
+	INTEL_VGA_DEVICE(0x0422, &intel_haswell_d_info), /* GT2 desktop */
 	INTEL_VGA_DEVICE(0x040a, &intel_haswell_d_info), /* GT1 server */
 	INTEL_VGA_DEVICE(0x041a, &intel_haswell_d_info), /* GT2 server */
+	INTEL_VGA_DEVICE(0x042a, &intel_haswell_d_info), /* GT2 server */
 	INTEL_VGA_DEVICE(0x0406, &intel_haswell_m_info), /* GT1 mobile */
 	INTEL_VGA_DEVICE(0x0416, &intel_haswell_m_info), /* GT2 mobile */
-	INTEL_VGA_DEVICE(0x0c16, &intel_haswell_d_info), /* SDV */
+	INTEL_VGA_DEVICE(0x0426, &intel_haswell_m_info), /* GT2 mobile */
+	INTEL_VGA_DEVICE(0x0C02, &intel_haswell_d_info), /* SDV GT1 desktop */
+	INTEL_VGA_DEVICE(0x0C12, &intel_haswell_d_info), /* SDV GT2 desktop */
+	INTEL_VGA_DEVICE(0x0C22, &intel_haswell_d_info), /* SDV GT2 desktop */
+	INTEL_VGA_DEVICE(0x0C0A, &intel_haswell_d_info), /* SDV GT1 server */
+	INTEL_VGA_DEVICE(0x0C1A, &intel_haswell_d_info), /* SDV GT2 server */
+	INTEL_VGA_DEVICE(0x0C2A, &intel_haswell_d_info), /* SDV GT2 server */
+	INTEL_VGA_DEVICE(0x0C06, &intel_haswell_m_info), /* SDV GT1 mobile */
+	INTEL_VGA_DEVICE(0x0C16, &intel_haswell_m_info), /* SDV GT2 mobile */
+	INTEL_VGA_DEVICE(0x0C26, &intel_haswell_m_info), /* SDV GT2 mobile */
+	INTEL_VGA_DEVICE(0x0A02, &intel_haswell_d_info), /* ULT GT1 desktop */
+	INTEL_VGA_DEVICE(0x0A12, &intel_haswell_d_info), /* ULT GT2 desktop */
+	INTEL_VGA_DEVICE(0x0A22, &intel_haswell_d_info), /* ULT GT2 desktop */
+	INTEL_VGA_DEVICE(0x0A0A, &intel_haswell_d_info), /* ULT GT1 server */
+	INTEL_VGA_DEVICE(0x0A1A, &intel_haswell_d_info), /* ULT GT2 server */
+	INTEL_VGA_DEVICE(0x0A2A, &intel_haswell_d_info), /* ULT GT2 server */
+	INTEL_VGA_DEVICE(0x0A06, &intel_haswell_m_info), /* ULT GT1 mobile */
+	INTEL_VGA_DEVICE(0x0A16, &intel_haswell_m_info), /* ULT GT2 mobile */
+	INTEL_VGA_DEVICE(0x0A26, &intel_haswell_m_info), /* ULT GT2 mobile */
+	INTEL_VGA_DEVICE(0x0D12, &intel_haswell_d_info), /* CRW GT1 desktop */
+	INTEL_VGA_DEVICE(0x0D22, &intel_haswell_d_info), /* CRW GT2 desktop */
+	INTEL_VGA_DEVICE(0x0D32, &intel_haswell_d_info), /* CRW GT2 desktop */
+	INTEL_VGA_DEVICE(0x0D1A, &intel_haswell_d_info), /* CRW GT1 server */
+	INTEL_VGA_DEVICE(0x0D2A, &intel_haswell_d_info), /* CRW GT2 server */
+	INTEL_VGA_DEVICE(0x0D3A, &intel_haswell_d_info), /* CRW GT2 server */
+	INTEL_VGA_DEVICE(0x0D16, &intel_haswell_m_info), /* CRW GT1 mobile */
+	INTEL_VGA_DEVICE(0x0D26, &intel_haswell_m_info), /* CRW GT2 mobile */
+	INTEL_VGA_DEVICE(0x0D36, &intel_haswell_m_info), /* CRW GT2 mobile */
 	INTEL_VGA_DEVICE(0x0f30, &intel_valleyview_m_info),
 	INTEL_VGA_DEVICE(0x0157, &intel_valleyview_m_info),
 	INTEL_VGA_DEVICE(0x0155, &intel_valleyview_d_info),
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 5c4657a54f9..274d25de521 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2365,6 +2365,10 @@ int i915_gpu_idle(struct drm_device *dev)
 
 	/* Flush everything onto the inactive list. */
 	for_each_ring(ring, dev_priv, i) {
+		ret = i915_switch_context(ring, NULL, DEFAULT_CONTEXT_ID);
+		if (ret)
+			return ret;
+
 		ret = i915_ring_idle(ring);
 		if (ret)
 			return ret;
@@ -2372,10 +2376,6 @@ int i915_gpu_idle(struct drm_device *dev)
 		/* Is the device fubar? */
 		if (WARN_ON(!list_empty(&ring->gpu_write_list)))
 			return -EBUSY;
-
-		ret = i915_switch_context(ring, NULL, DEFAULT_CONTEXT_ID);
-		if (ret)
-			return ret;
 	}
 
 	return 0;
@@ -3242,7 +3242,8 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
 {
 	int ret;
 
-	BUG_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT);
+	if (WARN_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT))
+		return -EBUSY;
 
 	if (obj->gtt_space != NULL) {
 		if ((alignment && obj->gtt_offset & (alignment - 1)) ||
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index da8b01fb1bf..a9d58d72bb4 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -451,7 +451,6 @@ int i915_switch_context(struct intel_ring_buffer *ring,
 	struct drm_i915_file_private *file_priv = NULL;
 	struct i915_hw_context *to;
 	struct drm_i915_gem_object *from_obj = ring->last_context_obj;
-	int ret;
 
 	if (dev_priv->hw_contexts_disabled)
 		return 0;
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 5af631e788c..ff2819ea081 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -291,6 +291,16 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj,
 	target_i915_obj = to_intel_bo(target_obj);
 	target_offset = target_i915_obj->gtt_offset;
 
+	/* Sandybridge PPGTT errata: We need a global gtt mapping for MI and
+	 * pipe_control writes because the gpu doesn't properly redirect them
+	 * through the ppgtt for non_secure batchbuffers. */
+	if (unlikely(IS_GEN6(dev) &&
+	    reloc->write_domain == I915_GEM_DOMAIN_INSTRUCTION &&
+	    !target_i915_obj->has_global_gtt_mapping)) {
+		i915_gem_gtt_bind_object(target_i915_obj,
+					 target_i915_obj->cache_level);
+	}
+
 	/* The target buffer should have appeared before us in the
 	 * exec_object list, so it should have a GTT space bound by now.
 	 */
@@ -399,16 +409,6 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj,
 		io_mapping_unmap_atomic(reloc_page);
 	}
 
-	/* Sandybridge PPGTT errata: We need a global gtt mapping for MI and
-	 * pipe_control writes because the gpu doesn't properly redirect them
-	 * through the ppgtt for non_secure batchbuffers. */
-	if (unlikely(IS_GEN6(dev) &&
-	    reloc->write_domain == I915_GEM_DOMAIN_INSTRUCTION &&
-	    !target_i915_obj->has_global_gtt_mapping)) {
-		i915_gem_gtt_bind_object(target_i915_obj,
-					 target_i915_obj->cache_level);
-	}
-
 	/* and update the user's relocation entry */
 	reloc->presumed_offset = target_offset;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9fd25a43553..60815b861ec 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -72,7 +72,7 @@ int i915_gem_init_aliasing_ppgtt(struct drm_device *dev)
 	/* ppgtt PDEs reside in the global gtt pagetable, which has 512*1024
 	 * entries. For aliasing ppgtt support we just steal them at the end for
 	 * now. */
-	first_pd_entry_in_global_pt = 512*1024 - I915_PPGTT_PD_ENTRIES;
+	first_pd_entry_in_global_pt = dev_priv->mm.gtt->gtt_total_entries - I915_PPGTT_PD_ENTRIES;
 
 	ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
 	if (!ppgtt)
@@ -261,7 +261,10 @@ void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
 		pte_flags |= GEN6_PTE_CACHE_LLC;
 		break;
 	case I915_CACHE_NONE:
-		pte_flags |= GEN6_PTE_UNCACHED;
+		if (IS_HASWELL(dev))
+			pte_flags |= HSW_PTE_UNCACHED;
+		else
+			pte_flags |= GEN6_PTE_UNCACHED;
 		break;
 	default:
 		BUG();
@@ -361,7 +364,8 @@ int i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj)
 	struct drm_device *dev = obj->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	if (dev_priv->mm.gtt->needs_dmar)
+	/* don't map imported dma buf objects */
+	if (dev_priv->mm.gtt->needs_dmar && !obj->sg_table)
 		return intel_gtt_map_memory(obj->pages,
 					    obj->base.size >> PAGE_SHIFT,
 					    &obj->sg_list,
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 8a3828528b9..5249640cce1 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2700,9 +2700,6 @@ void intel_irq_init(struct drm_device *dev)
 			dev->driver->irq_handler = i8xx_irq_handler;
 			dev->driver->irq_uninstall = i8xx_irq_uninstall;
 		} else if (INTEL_INFO(dev)->gen == 3) {
-			/* IIR "flip pending" means done if this bit is set */
-			I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
-
 			dev->driver->irq_preinstall = i915_irq_preinstall;
 			dev->driver->irq_postinstall = i915_irq_postinstall;
 			dev->driver->irq_uninstall = i915_irq_uninstall;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index acc99b21e0b..28725ce5b82 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -115,6 +115,7 @@
 
 #define GEN6_PTE_VALID			(1 << 0)
 #define GEN6_PTE_UNCACHED		(1 << 1)
+#define HSW_PTE_UNCACHED		(0)
 #define GEN6_PTE_CACHE_LLC		(2 << 1)
 #define GEN6_PTE_CACHE_LLC_MLC		(3 << 1)
 #define GEN6_PTE_CACHE_BITS		(3 << 1)
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index 2f5388af8df..7631807a278 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -32,6 +32,7 @@
 #include "intel_drv.h"
 #include "i915_drv.h"
 
+#ifdef CONFIG_PM
 static u32 calc_residency(struct drm_device *dev, const u32 reg)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -224,3 +225,14 @@ void i915_teardown_sysfs(struct drm_device *dev)
 	device_remove_bin_file(&dev->primary->kdev,  &dpf_attrs);
 	sysfs_unmerge_group(&dev->primary->kdev.kobj, &rc6_attr_group);
 }
+#else
+void i915_setup_sysfs(struct drm_device *dev)
+{
+	return;
+}
+
+void i915_teardown_sysfs(struct drm_device *dev)
+{
+	return;
+}
+#endif /* CONFIG_PM */
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 7ed4a41c396..23bdc8cd145 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -326,6 +326,36 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
 	return ret;
 }
 
+static struct edid *intel_crt_get_edid(struct drm_connector *connector,
+				struct i2c_adapter *i2c)
+{
+	struct edid *edid;
+
+	edid = drm_get_edid(connector, i2c);
+
+	if (!edid && !intel_gmbus_is_forced_bit(i2c)) {
+		DRM_DEBUG_KMS("CRT GMBUS EDID read failed, retry using GPIO bit-banging\n");
+		intel_gmbus_force_bit(i2c, true);
+		edid = drm_get_edid(connector, i2c);
+		intel_gmbus_force_bit(i2c, false);
+	}
+
+	return edid;
+}
+
+/* local version of intel_ddc_get_modes() to use intel_crt_get_edid() */
+static int intel_crt_ddc_get_modes(struct drm_connector *connector,
+				struct i2c_adapter *adapter)
+{
+	struct edid *edid;
+
+	edid = intel_crt_get_edid(connector, adapter);
+	if (!edid)
+		return 0;
+
+	return intel_connector_update_modes(connector, edid);
+}
+
 static bool intel_crt_detect_ddc(struct drm_connector *connector)
 {
 	struct intel_crt *crt = intel_attached_crt(connector);
@@ -336,7 +366,7 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
 	BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
 
 	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->crt_ddc_pin);
-	edid = drm_get_edid(connector, i2c);
+	edid = intel_crt_get_edid(connector, i2c);
 
 	if (edid) {
 		bool is_digital = edid->input & DRM_EDID_INPUT_DIGITAL;
@@ -544,13 +574,13 @@ static int intel_crt_get_modes(struct drm_connector *connector)
 	struct i2c_adapter *i2c;
 
 	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->crt_ddc_pin);
-	ret = intel_ddc_get_modes(connector, i2c);
+	ret = intel_crt_ddc_get_modes(connector, i2c);
 	if (ret || !IS_G4X(dev))
 		return ret;
 
 	/* Try to probe digital port for output in DVI-I -> VGA mode. */
 	i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB);
-	return intel_ddc_get_modes(connector, i2c);
+	return intel_crt_ddc_get_modes(connector, i2c);
 }
 
 static int intel_crt_set_property(struct drm_connector *connector,
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f6159765f1e..c040aee1341 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -869,6 +869,7 @@ intel_vlv_find_best_pll(const intel_limit_t *limit, struct drm_crtc *crtc,
 	unsigned long bestppm, ppm, absppm;
 	int dotclk, flag;
 
+	flag = 0;
 	dotclk = target * 1000;
 	bestppm = 1000000;
 	ppm = absppm = 0;
@@ -1375,7 +1376,8 @@ static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
 	     "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
 	     reg, pipe_name(pipe));
 
-	WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT),
+	WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
+	     && (val & DP_PIPEB_SELECT),
 	     "IBX PCH dp port still using transcoder B\n");
 }
 
@@ -1383,11 +1385,12 @@ static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
 				     enum pipe pipe, int reg)
 {
 	u32 val = I915_READ(reg);
-	WARN(hdmi_pipe_enabled(dev_priv, val, pipe),
+	WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
 	     "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
 	     reg, pipe_name(pipe));
 
-	WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_PIPE_B_SELECT),
+	WARN(HAS_PCH_IBX(dev_priv->dev) && (val & PORT_ENABLE) == 0
+	     && (val & SDVO_PIPE_B_SELECT),
 	     "IBX PCH hdmi port still using transcoder B\n");
 }
 
@@ -1403,13 +1406,13 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
 
 	reg = PCH_ADPA;
 	val = I915_READ(reg);
-	WARN(adpa_pipe_enabled(dev_priv, val, pipe),
+	WARN(adpa_pipe_enabled(dev_priv, pipe, val),
 	     "PCH VGA enabled on transcoder %c, should be disabled\n",
 	     pipe_name(pipe));
 
 	reg = PCH_LVDS;
 	val = I915_READ(reg);
-	WARN(lvds_pipe_enabled(dev_priv, val, pipe),
+	WARN(lvds_pipe_enabled(dev_priv, pipe, val),
 	     "PCH LVDS enabled on transcoder %c, should be disabled\n",
 	     pipe_name(pipe));
 
@@ -1871,7 +1874,7 @@ static void disable_pch_hdmi(struct drm_i915_private *dev_priv,
 			     enum pipe pipe, int reg)
 {
 	u32 val = I915_READ(reg);
-	if (hdmi_pipe_enabled(dev_priv, val, pipe)) {
+	if (hdmi_pipe_enabled(dev_priv, pipe, val)) {
 		DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n",
 			      reg, pipe);
 		I915_WRITE(reg, val & ~PORT_ENABLE);
@@ -1893,12 +1896,12 @@ static void intel_disable_pch_ports(struct drm_i915_private *dev_priv,
 
 	reg = PCH_ADPA;
 	val = I915_READ(reg);
-	if (adpa_pipe_enabled(dev_priv, val, pipe))
+	if (adpa_pipe_enabled(dev_priv, pipe, val))
 		I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);
 
 	reg = PCH_LVDS;
 	val = I915_READ(reg);
-	if (lvds_pipe_enabled(dev_priv, val, pipe)) {
+	if (lvds_pipe_enabled(dev_priv, pipe, val)) {
 		DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val);
 		I915_WRITE(reg, val & ~LVDS_PORT_EN);
 		POSTING_READ(reg);
@@ -3753,17 +3756,6 @@ static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
 			continue;
 		}
 
-		if (intel_encoder->type == INTEL_OUTPUT_EDP) {
-			/* Use VBT settings if we have an eDP panel */
-			unsigned int edp_bpc = dev_priv->edp.bpp / 3;
-
-			if (edp_bpc < display_bpc) {
-				DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc);
-				display_bpc = edp_bpc;
-			}
-			continue;
-		}
-
 		/* Not one of the known troublemakers, check the EDID */
 		list_for_each_entry(connector, &dev->mode_config.connector_list,
 				    head) {
@@ -4199,12 +4191,6 @@ static void i8xx_update_pll(struct drm_crtc *crtc,
 	POSTING_READ(DPLL(pipe));
 	udelay(150);
 
-	I915_WRITE(DPLL(pipe), dpll);
-
-	/* Wait for the clocks to stabilize. */
-	POSTING_READ(DPLL(pipe));
-	udelay(150);
-
 	/* The LVDS pin pair needs to be on before the DPLLs are enabled.
 	 * This is an exception to the general rule that mode_set doesn't turn
 	 * things on.
@@ -4212,6 +4198,12 @@ static void i8xx_update_pll(struct drm_crtc *crtc,
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
 		intel_update_lvds(crtc, clock, adjusted_mode);
 
+	I915_WRITE(DPLL(pipe), dpll);
+
+	/* Wait for the clocks to stabilize. */
+	POSTING_READ(DPLL(pipe));
+	udelay(150);
+
 	/* The pixel multiplier can only be updated once the
 	 * DPLL is enabled and the clocks are stable.
 	 *
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 0a56b9ab0f5..ace757af913 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1174,10 +1174,14 @@ static void ironlake_edp_panel_off(struct intel_dp *intel_dp)
 	WARN(!intel_dp->want_panel_vdd, "Need VDD to turn off panel\n");
 
 	pp = ironlake_get_pp_control(dev_priv);
-	pp &= ~(POWER_TARGET_ON | PANEL_POWER_RESET | EDP_BLC_ENABLE);
+	/* We need to switch off panel power _and_ force vdd, for otherwise some
+	 * panels get very unhappy and cease to work. */
+	pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE);
 	I915_WRITE(PCH_PP_CONTROL, pp);
 	POSTING_READ(PCH_PP_CONTROL);
 
+	intel_dp->want_panel_vdd = false;
+
 	ironlake_wait_panel_off(intel_dp);
 }
 
@@ -1287,11 +1291,9 @@ static void intel_dp_prepare(struct drm_encoder *encoder)
 	 * ensure that we have vdd while we switch off the panel. */
 	ironlake_edp_panel_vdd_on(intel_dp);
 	ironlake_edp_backlight_off(intel_dp);
-	ironlake_edp_panel_off(intel_dp);
-
 	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+	ironlake_edp_panel_off(intel_dp);
 	intel_dp_link_down(intel_dp);
-	ironlake_edp_panel_vdd_off(intel_dp, false);
 }
 
 static void intel_dp_commit(struct drm_encoder *encoder)
@@ -1326,11 +1328,9 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
 		/* Switching the panel off requires vdd. */
 		ironlake_edp_panel_vdd_on(intel_dp);
 		ironlake_edp_backlight_off(intel_dp);
-		ironlake_edp_panel_off(intel_dp);
-
 		intel_dp_sink_dpms(intel_dp, mode);
+		ironlake_edp_panel_off(intel_dp);
 		intel_dp_link_down(intel_dp);
-		ironlake_edp_panel_vdd_off(intel_dp, false);
 
 		if (is_cpu_edp(intel_dp))
 			ironlake_edp_pll_off(encoder);
@@ -2533,14 +2533,10 @@ intel_dp_init(struct drm_device *dev, int output_reg)
 			break;
 	}
 
-	intel_dp_i2c_init(intel_dp, intel_connector, name);
-
 	/* Cache some DPCD data in the eDP case */
 	if (is_edp(intel_dp)) {
-		bool ret;
 		struct edp_power_seq	cur, vbt;
 		u32 pp_on, pp_off, pp_div;
-		struct edid *edid;
 
 		pp_on = I915_READ(PCH_PP_ON_DELAYS);
 		pp_off = I915_READ(PCH_PP_OFF_DELAYS);
@@ -2591,6 +2587,13 @@ intel_dp_init(struct drm_device *dev, int output_reg)
 
 		DRM_DEBUG_KMS("backlight on delay %d, off delay %d\n",
 			      intel_dp->backlight_on_delay, intel_dp->backlight_off_delay);
+	}
+
+	intel_dp_i2c_init(intel_dp, intel_connector, name);
+
+	if (is_edp(intel_dp)) {
+		bool ret;
+		struct edid *edid;
 
 		ironlake_edp_panel_vdd_on(intel_dp);
 		ret = intel_dp_get_dpcd(intel_dp);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 84353559441..cd54cf88a28 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -46,15 +46,16 @@
 })
 
 #define wait_for_atomic_us(COND, US) ({ \
-	int i, ret__ = -ETIMEDOUT;	\
-	for (i = 0; i < (US); i++) {	\
-		if ((COND)) {		\
-			ret__ = 0;	\
-			break;		\
-		}			\
-		udelay(1);		\
-	}				\
-	ret__;				\
+	unsigned long timeout__ = jiffies + usecs_to_jiffies(US);	\
+	int ret__ = 0;							\
+	while (!(COND)) {						\
+		if (time_after(jiffies, timeout__)) {			\
+			ret__ = -ETIMEDOUT;				\
+			break;						\
+		}							\
+		cpu_relax();						\
+	}								\
+	ret__;								\
 })
 
 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
@@ -341,6 +342,8 @@ struct intel_fbc_work {
 	int interval;
 };
 
+int intel_connector_update_modes(struct drm_connector *connector,
+				struct edid *edid);
 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 
 extern void intel_attach_force_audio_property(struct drm_connector *connector);
@@ -380,7 +383,6 @@ extern void intel_pch_panel_fitting(struct drm_device *dev,
 				    const struct drm_display_mode *mode,
 				    struct drm_display_mode *adjusted_mode);
 extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
-extern u32 intel_panel_get_backlight(struct drm_device *dev);
 extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
 extern int intel_panel_setup_backlight(struct drm_device *dev);
 extern void intel_panel_enable_backlight(struct drm_device *dev,
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 98f602427eb..12dc3308ab8 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -609,7 +609,7 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
 	u32 temp;
 	u32 enable_bits = SDVO_ENABLE;
 
-	if (intel_hdmi->has_audio)
+	if (intel_hdmi->has_audio || mode != DRM_MODE_DPMS_ON)
 		enable_bits |= SDVO_AUDIO_ENABLE;
 
 	temp = I915_READ(intel_hdmi->sdvox_reg);
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 1991a4408cf..b9755f6378d 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -486,9 +486,6 @@ int intel_setup_gmbus(struct drm_device *dev)
 		bus->dev_priv = dev_priv;
 
 		bus->adapter.algo = &gmbus_algorithm;
-		ret = i2c_add_adapter(&bus->adapter);
-		if (ret)
-			goto err;
 
 		/* By default use a conservative clock rate */
 		bus->reg0 = port | GMBUS_RATE_100KHZ;
@@ -498,6 +495,10 @@ int intel_setup_gmbus(struct drm_device *dev)
 			bus->force_bit = true;
 
 		intel_gpio_setup(bus, port);
+
+		ret = i2c_add_adapter(&bus->adapter);
+		if (ret)
+			goto err;
 	}
 
 	intel_i2c_reset(dev_priv->dev);
@@ -540,9 +541,6 @@ void intel_teardown_gmbus(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int i;
 
-	if (dev_priv->gmbus == NULL)
-		return;
-
 	for (i = 0; i < GMBUS_NUM_PORTS; i++) {
 		struct intel_gmbus *bus = &dev_priv->gmbus[i];
 		i2c_del_adapter(&bus->adapter);
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index e05c0d3e344..e9a6f6aaed8 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -780,6 +780,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "ZBOXSD-ID12/ID13"),
 		},
 	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Gigabyte GA-D525TUD",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
+			DMI_MATCH(DMI_BOARD_NAME, "D525TUD"),
+		},
+	},
 
 	{ }	/* terminating entry */
 };
diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c
index 45848b9b670..29b72593fbb 100644
--- a/drivers/gpu/drm/i915/intel_modes.c
+++ b/drivers/gpu/drm/i915/intel_modes.c
@@ -33,6 +33,25 @@
 #include "i915_drv.h"
 
 /**
+ * intel_connector_update_modes - update connector from edid
+ * @connector: DRM connector device to use
+ * @edid: previously read EDID information
+ */
+int intel_connector_update_modes(struct drm_connector *connector,
+				struct edid *edid)
+{
+	int ret;
+
+	drm_mode_connector_update_edid_property(connector, edid);
+	ret = drm_add_edid_modes(connector, edid);
+	drm_edid_to_eld(connector, edid);
+	connector->display_info.raw_edid = NULL;
+	kfree(edid);
+
+	return ret;
+}
+
+/**
  * intel_ddc_get_modes - get modelist from monitor
  * @connector: DRM connector device to use
  * @adapter: i2c adapter
@@ -43,18 +62,12 @@ int intel_ddc_get_modes(struct drm_connector *connector,
 			struct i2c_adapter *adapter)
 {
 	struct edid *edid;
-	int ret = 0;
 
 	edid = drm_get_edid(connector, adapter);
-	if (edid) {
-		drm_mode_connector_update_edid_property(connector, edid);
-		ret = drm_add_edid_modes(connector, edid);
-		drm_edid_to_eld(connector, edid);
-		connector->display_info.raw_edid = NULL;
-		kfree(edid);
-	}
+	if (!edid)
+		return 0;
 
-	return ret;
+	return intel_connector_update_modes(connector, edid);
 }
 
 static const struct drm_prop_enum_list force_audio_names[] = {
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 10c7d39034e..e019b236986 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -162,19 +162,12 @@ static u32 i915_read_blc_pwm_ctl(struct drm_i915_private *dev_priv)
 	return val;
 }
 
-u32 intel_panel_get_max_backlight(struct drm_device *dev)
+static u32 _intel_panel_get_max_backlight(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 max;
 
 	max = i915_read_blc_pwm_ctl(dev_priv);
-	if (max == 0) {
-		/* XXX add code here to query mode clock or hardware clock
-		 * and program max PWM appropriately.
-		 */
-		pr_warn_once("fixme: max PWM is zero\n");
-		return 1;
-	}
 
 	if (HAS_PCH_SPLIT(dev)) {
 		max >>= 16;
@@ -188,6 +181,22 @@ u32 intel_panel_get_max_backlight(struct drm_device *dev)
 			max *= 0xff;
 	}
 
+	return max;
+}
+
+u32 intel_panel_get_max_backlight(struct drm_device *dev)
+{
+	u32 max;
+
+	max = _intel_panel_get_max_backlight(dev);
+	if (max == 0) {
+		/* XXX add code here to query mode clock or hardware clock
+		 * and program max PWM appropriately.
+		 */
+		pr_warn_once("fixme: max PWM is zero\n");
+		return 1;
+	}
+
 	DRM_DEBUG_DRIVER("max backlight PWM = %d\n", max);
 	return max;
 }
@@ -213,7 +222,7 @@ static u32 intel_panel_compute_brightness(struct drm_device *dev, u32 val)
 	return val;
 }
 
-u32 intel_panel_get_backlight(struct drm_device *dev)
+static u32 intel_panel_get_backlight(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 val;
@@ -311,9 +320,6 @@ void intel_panel_enable_backlight(struct drm_device *dev,
 	if (dev_priv->backlight_level == 0)
 		dev_priv->backlight_level = intel_panel_get_max_backlight(dev);
 
-	dev_priv->backlight_enabled = true;
-	intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
-
 	if (INTEL_INFO(dev)->gen >= 4) {
 		uint32_t reg, tmp;
 
@@ -326,7 +332,7 @@ void intel_panel_enable_backlight(struct drm_device *dev,
 		 * we don't track the backlight dpms state, hence check whether
 		 * we have to do anything first. */
 		if (tmp & BLM_PWM_ENABLE)
-			return;
+			goto set_level;
 
 		if (dev_priv->num_pipe == 3)
 			tmp &= ~BLM_PIPE_SELECT_IVB;
@@ -347,6 +353,14 @@ void intel_panel_enable_backlight(struct drm_device *dev,
 			I915_WRITE(BLC_PWM_PCH_CTL1, tmp);
 		}
 	}
+
+set_level:
+	/* Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1.
+	 * BLC_PWM_CPU_CTL may be cleared to zero automatically when these
+	 * registers are set.
+	 */
+	dev_priv->backlight_enabled = true;
+	intel_panel_actually_set_backlight(dev, dev_priv->backlight_level);
 }
 
 static void intel_panel_init_backlight(struct drm_device *dev)
@@ -419,7 +433,11 @@ int intel_panel_setup_backlight(struct drm_device *dev)
 
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
-	props.max_brightness = intel_panel_get_max_backlight(dev);
+	props.max_brightness = _intel_panel_get_max_backlight(dev);
+	if (props.max_brightness == 0) {
+		DRM_ERROR("Failed to get maximum backlight value\n");
+		return -ENODEV;
+	}
 	dev_priv->backlight =
 		backlight_device_register("intel_backlight",
 					  &connector->kdev, dev,
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 94aabcaa3a6..ba8a27b1757 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2441,17 +2441,10 @@ static void gen6_enable_rps(struct drm_device *dev)
 		   dev_priv->max_delay << 24 |
 		   dev_priv->min_delay << 16);
 
-	if (IS_HASWELL(dev)) {
-		I915_WRITE(GEN6_RP_UP_THRESHOLD, 59400);
-		I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 245000);
-		I915_WRITE(GEN6_RP_UP_EI, 66000);
-		I915_WRITE(GEN6_RP_DOWN_EI, 350000);
-	} else {
-		I915_WRITE(GEN6_RP_UP_THRESHOLD, 10000);
-		I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 1000000);
-		I915_WRITE(GEN6_RP_UP_EI, 100000);
-		I915_WRITE(GEN6_RP_DOWN_EI, 5000000);
-	}
+	I915_WRITE(GEN6_RP_UP_THRESHOLD, 59400);
+	I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 245000);
+	I915_WRITE(GEN6_RP_UP_EI, 66000);
+	I915_WRITE(GEN6_RP_DOWN_EI, 350000);
 
 	I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
 	I915_WRITE(GEN6_RP_CONTROL,
@@ -3679,6 +3672,9 @@ static void gen3_init_clock_gating(struct drm_device *dev)
 
 	if (IS_PINEVIEW(dev))
 		I915_WRITE(ECOSKPD, _MASKED_BIT_ENABLE(ECO_GATING_CX_ONLY));
+
+	/* IIR "flip pending" means done if this bit is set */
+	I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
 }
 
 static void i85x_init_clock_gating(struct drm_device *dev)
@@ -3963,6 +3959,7 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
 		DRM_ERROR("Force wake wait timed out\n");
 
 	I915_WRITE_NOTRACE(FORCEWAKE, 1);
+	POSTING_READ(FORCEWAKE);
 
 	if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500))
 		DRM_ERROR("Force wake wait timed out\n");
@@ -3983,6 +3980,7 @@ static void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv)
 		DRM_ERROR("Force wake wait timed out\n");
 
 	I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_ENABLE(1));
+	POSTING_READ(FORCEWAKE_MT);
 
 	if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500))
 		DRM_ERROR("Force wake wait timed out\n");
@@ -4018,14 +4016,14 @@ void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv)
 static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
 {
 	I915_WRITE_NOTRACE(FORCEWAKE, 0);
-	/* The below doubles as a POSTING_READ */
+	POSTING_READ(FORCEWAKE);
 	gen6_gt_check_fifodbg(dev_priv);
 }
 
 static void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv)
 {
 	I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_DISABLE(1));
-	/* The below doubles as a POSTING_READ */
+	POSTING_READ(FORCEWAKE_MT);
 	gen6_gt_check_fifodbg(dev_priv);
 }
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index bf0195a96d5..e2a73b38abe 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -227,31 +227,36 @@ gen6_render_ring_flush(struct intel_ring_buffer *ring,
 	 * number of bits based on the write domains has little performance
 	 * impact.
 	 */
-	flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
-	flags |= PIPE_CONTROL_TLB_INVALIDATE;
-	flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
-	flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
-	flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
-	flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
-	flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
-	flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
-	/*
-	 * Ensure that any following seqno writes only happen when the render
-	 * cache is indeed flushed (but only if the caller actually wants that).
-	 */
-	if (flush_domains)
+	if (flush_domains) {
+		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		/*
+		 * Ensure that any following seqno writes only happen
+		 * when the render cache is indeed flushed.
+		 */
 		flags |= PIPE_CONTROL_CS_STALL;
+	}
+	if (invalidate_domains) {
+		flags |= PIPE_CONTROL_TLB_INVALIDATE;
+		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+		/*
+		 * TLB invalidate requires a post-sync write.
+		 */
+		flags |= PIPE_CONTROL_QW_WRITE;
+	}
 
-	ret = intel_ring_begin(ring, 6);
+	ret = intel_ring_begin(ring, 4);
 	if (ret)
 		return ret;
 
-	intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5));
+	intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4));
 	intel_ring_emit(ring, flags);
 	intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT);
-	intel_ring_emit(ring, 0); /* lower dword */
-	intel_ring_emit(ring, 0); /* uppwer dword */
-	intel_ring_emit(ring, MI_NOOP);
+	intel_ring_emit(ring, 0);
 	intel_ring_advance(ring);
 
 	return 0;
@@ -289,8 +294,6 @@ static int init_ring_common(struct intel_ring_buffer *ring)
 	I915_WRITE_HEAD(ring, 0);
 	ring->write_tail(ring, 0);
 
-	/* Initialize the ring. */
-	I915_WRITE_START(ring, obj->gtt_offset);
 	head = I915_READ_HEAD(ring) & HEAD_ADDR;
 
 	/* G45 ring initialization fails to reset head to zero */
@@ -316,6 +319,11 @@ static int init_ring_common(struct intel_ring_buffer *ring)
 		}
 	}
 
+	/* Initialize the ring. This must happen _after_ we've cleared the ring
+	 * registers with the above sequence (the readback of the HEAD registers
+	 * also enforces ordering), otherwise the hw might lose the new ring
+	 * register values. */
+	I915_WRITE_START(ring, obj->gtt_offset);
 	I915_WRITE_CTL(ring,
 			((ring->size - PAGE_SIZE) & RING_NR_PAGES)
 			| RING_VALID);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 26a6a4d0d07..123afd35761 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -444,13 +444,16 @@ static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
 	struct i2c_msg *msgs;
 	int i, ret = true;
 
+        /* Would be simpler to allocate both in one go ? */        
 	buf = (u8 *)kzalloc(args_len * 2 + 2, GFP_KERNEL);
 	if (!buf)
 		return false;
 
 	msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
-	if (!msgs)
+	if (!msgs) {
+	        kfree(buf);
 		return false;
+        }
 
 	intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
 
@@ -1689,6 +1692,7 @@ static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
 	edid = intel_sdvo_get_edid(connector);
 	if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
 		has_audio = drm_detect_monitor_audio(edid);
+	kfree(edid);
 
 	return has_audio;
 }
@@ -2569,7 +2573,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
 		hotplug_mask = intel_sdvo->is_sdvob ?
 			SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
 	}
-	dev_priv->hotplug_supported_mask |= hotplug_mask;
 
 	drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
 
@@ -2577,14 +2580,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
 	if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
 		goto err;
 
-	/* Set up hotplug command - note paranoia about contents of reply.
-	 * We assume that the hardware is in a sane state, and only touch
-	 * the bits we think we understand.
-	 */
-	intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG,
-			     &intel_sdvo->hotplug_active, 2);
-	intel_sdvo->hotplug_active[0] &= ~0x3;
-
 	if (intel_sdvo_output_setup(intel_sdvo,
 				    intel_sdvo->caps.output_flags) != true) {
 		DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
@@ -2592,6 +2587,12 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
 		goto err;
 	}
 
+	/* Only enable the hotplug irq if we need it, to work around noisy
+	 * hotplug lines.
+	 */
+	if (intel_sdvo->hotplug_active[0])
+		dev_priv->hotplug_supported_mask |= hotplug_mask;
+
 	intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
 
 	/* Set the input timing to the screen. Assume always input 0. */
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index cc8df4de2d9..7644f31a377 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -60,11 +60,11 @@ ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
 
 	switch (fb->pixel_format) {
 	case DRM_FORMAT_XBGR8888:
-		sprctl |= SPRITE_FORMAT_RGBX888;
+		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
 		pixel_size = 4;
 		break;
 	case DRM_FORMAT_XRGB8888:
-		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
+		sprctl |= SPRITE_FORMAT_RGBX888;
 		pixel_size = 4;
 		break;
 	case DRM_FORMAT_YUYV:
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index ea1024d7997..e5f145d2cb3 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -84,6 +84,9 @@ static const struct file_operations mgag200_driver_fops = {
 	.mmap = mgag200_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.read = drm_read,
 };
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index a4d7c500c97..b69642d5d85 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -468,10 +468,11 @@ static int mga_g200er_set_plls(struct mga_device *mdev, long clock)
 {
 	unsigned int vcomax, vcomin, pllreffreq;
 	unsigned int delta, tmpdelta;
-	unsigned int testr, testn, testm, testo;
+	int testr, testn, testm, testo;
 	unsigned int p, m, n;
-	unsigned int computed;
+	unsigned int computed, vco;
 	int tmp;
+	const unsigned int m_div_val[] = { 1, 2, 4, 8 };
 
 	m = n = p = 0;
 	vcomax = 1488000;
@@ -490,12 +491,13 @@ static int mga_g200er_set_plls(struct mga_device *mdev, long clock)
 				if (delta == 0)
 					break;
 				for (testo = 5; testo < 33; testo++) {
-					computed = pllreffreq * (testn + 1) /
+					vco = pllreffreq * (testn + 1) /
 						(testr + 1);
-					if (computed < vcomin)
+					if (vco < vcomin)
 						continue;
-					if (computed > vcomax)
+					if (vco > vcomax)
 						continue;
+					computed = vco / (m_div_val[testm] * (testo + 1));
 					if (computed > clock)
 						tmpdelta = computed - clock;
 					else
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index ff23d88880e..3ca240b4413 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -179,7 +179,7 @@ nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 			return 0;
 	} else
 	if (init->class == 0x906e) {
-		NV_ERROR(dev, "906e not supported yet\n");
+		NV_DEBUG(dev, "906e not supported yet\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index fc841e87b34..26ebffebe71 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -211,11 +211,6 @@ static int nouveau_dsm_power_state(enum vga_switcheroo_client_id id,
 	return nouveau_dsm_set_discrete_state(nouveau_dsm_priv.dhandle, state);
 }
 
-static int nouveau_dsm_init(void)
-{
-	return 0;
-}
-
 static int nouveau_dsm_get_client_id(struct pci_dev *pdev)
 {
 	/* easy option one - intel vendor ID means Integrated */
@@ -232,7 +227,6 @@ static int nouveau_dsm_get_client_id(struct pci_dev *pdev)
 static struct vga_switcheroo_handler nouveau_dsm_handler = {
 	.switchto = nouveau_dsm_switchto,
 	.power_state = nouveau_dsm_power_state,
-	.init = nouveau_dsm_init,
 	.get_client_id = nouveau_dsm_get_client_id,
 };
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 69688ef5cf4..7e16dc5e646 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -598,7 +598,7 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 	args->size = args->pitch * args->height;
 	args->size = roundup(args->size, PAGE_SIZE);
 
-	ret = nouveau_gem_new(dev, args->size, 0, TTM_PL_FLAG_VRAM, 0, 0, &bo);
+	ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.c b/drivers/gpu/drm/nouveau/nouveau_gpio.c
index 82c19e82ff0..0fe4e17c461 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gpio.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gpio.c
@@ -302,7 +302,7 @@ nouveau_gpio_isr_del(struct drm_device *dev, int idx, u8 tag, u8 line,
 		spin_unlock_irqrestore(&pgpio->lock, flags);
 
 		list_for_each_entry_safe(isr, tmp, &tofree, head) {
-			flush_work_sync(&isr->work);
+			flush_work(&isr->work);
 			kfree(isr);
 		}
 	}
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.c b/drivers/gpu/drm/nouveau/nouveau_i2c.c
index 77e564667b5..240cf962c99 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.c
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.c
@@ -229,7 +229,7 @@ nouveau_i2c_init(struct drm_device *dev)
 			}
 			break;
 		case 6: /* NV50- DP AUX */
-			port->drive = entry[0];
+			port->drive = entry[0] & 0x0f;
 			port->sense = port->drive;
 			port->adapter.algo = &nouveau_dp_i2c_algo;
 			break;
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 1cdfd6e757c..c61014442aa 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -731,15 +731,16 @@ nouveau_card_init(struct drm_device *dev)
 			case 0xa3:
 			case 0xa5:
 			case 0xa8:
-			case 0xaf:
 				nva3_copy_create(dev);
 				break;
 			}
 			break;
 		case NV_C0:
-			nvc0_copy_create(dev, 1);
+			if (!(nv_rd32(dev, 0x022500) & 0x00000200))
+				nvc0_copy_create(dev, 1);
 		case NV_D0:
-			nvc0_copy_create(dev, 0);
+			if (!(nv_rd32(dev, 0x022500) & 0x00000100))
+				nvc0_copy_create(dev, 0);
 			break;
 		default:
 			break;
diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c
index f429e6a8ca7..c399d510b27 100644
--- a/drivers/gpu/drm/nouveau/nv50_gpio.c
+++ b/drivers/gpu/drm/nouveau/nv50_gpio.c
@@ -22,6 +22,7 @@
  * Authors: Ben Skeggs
  */
 
+#include <linux/dmi.h>
 #include "drmP.h"
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
@@ -110,11 +111,26 @@ nv50_gpio_isr(struct drm_device *dev)
 		nv_wr32(dev, 0xe074, intr1);
 }
 
+static struct dmi_system_id gpio_reset_ids[] = {
+	{
+		.ident = "Apple Macbook 10,1",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro10,1"),
+		}
+	},
+	{ }
+};
+
 int
 nv50_gpio_init(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 
+	/* initialise gpios and routing to vbios defaults */
+	if (dmi_check_system(gpio_reset_ids))
+		nouveau_gpio_reset(dev);
+
 	/* disable, and ack any pending gpio interrupts */
 	nv_wr32(dev, 0xe050, 0x00000000);
 	nv_wr32(dev, 0xe054, 0xffffffff);
diff --git a/drivers/gpu/drm/nouveau/nv84_fifo.c b/drivers/gpu/drm/nouveau/nv84_fifo.c
index cc82d799fc3..c564c5e4c30 100644
--- a/drivers/gpu/drm/nouveau/nv84_fifo.c
+++ b/drivers/gpu/drm/nouveau/nv84_fifo.c
@@ -117,17 +117,22 @@ nv84_fifo_context_del(struct nouveau_channel *chan, int engine)
 	struct drm_device *dev = chan->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	unsigned long flags;
+	u32 save;
 
 	/* remove channel from playlist, will context switch if active */
 	spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
 	nv_mask(dev, 0x002600 + (chan->id * 4), 0x80000000, 0x00000000);
 	nv50_fifo_playlist_update(dev);
 
+	save = nv_mask(dev, 0x002520, 0x0000003f, 0x15);
+
 	/* tell any engines on this channel to unload their contexts */
 	nv_wr32(dev, 0x0032fc, chan->ramin->vinst >> 12);
 	if (!nv_wait_ne(dev, 0x0032fc, 0xffffffff, 0xffffffff))
 		NV_INFO(dev, "PFIFO: channel %d unload timeout\n", chan->id);
 
+	nv_wr32(dev, 0x002520, save);
+
 	nv_wr32(dev, 0x002600 + (chan->id * 4), 0x00000000);
 	spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
 
@@ -184,10 +189,13 @@ nv84_fifo_fini(struct drm_device *dev, int engine, bool suspend)
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nv84_fifo_priv *priv = nv_engine(dev, engine);
 	int i;
+	u32 save;
 
 	/* set playlist length to zero, fifo will unload context */
 	nv_wr32(dev, 0x0032ec, 0);
 
+	save = nv_mask(dev, 0x002520, 0x0000003f, 0x15);
+
 	/* tell all connected engines to unload their contexts */
 	for (i = 0; i < priv->base.channels; i++) {
 		struct nouveau_channel *chan = dev_priv->channels.ptr[i];
@@ -199,6 +207,7 @@ nv84_fifo_fini(struct drm_device *dev, int engine, bool suspend)
 		}
 	}
 
+	nv_wr32(dev, 0x002520, save);
 	nv_wr32(dev, 0x002140, 0);
 	return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c
index f704e942372..f376c39310d 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fb.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fb.c
@@ -124,6 +124,7 @@ nvc0_fb_init(struct drm_device *dev)
 	priv = dev_priv->engine.fb.priv;
 
 	nv_wr32(dev, 0x100c10, priv->r100c10 >> 8);
+	nv_mask(dev, 0x17e820, 0x00100000, 0x00000000); /* NV_PLTCG_INTR_EN */
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c
index 7d85553d518..cd39eb99f5b 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c
@@ -373,7 +373,8 @@ nvc0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
 static void
 nvc0_fifo_isr(struct drm_device *dev)
 {
-	u32 stat = nv_rd32(dev, 0x002100);
+	u32 mask = nv_rd32(dev, 0x002140);
+	u32 stat = nv_rd32(dev, 0x002100) & mask;
 
 	if (stat & 0x00000100) {
 		NV_INFO(dev, "PFIFO: unknown status 0x00000100\n");
diff --git a/drivers/gpu/drm/nouveau/nvc0_pm.c b/drivers/gpu/drm/nouveau/nvc0_pm.c
index 7c95c44e288..4e712b10ebd 100644
--- a/drivers/gpu/drm/nouveau/nvc0_pm.c
+++ b/drivers/gpu/drm/nouveau/nvc0_pm.c
@@ -557,7 +557,7 @@ prog_mem(struct drm_device *dev, struct nvc0_pm_state *info)
 	nouveau_mem_exec(&exec, info->perflvl);
 
 	if (dev_priv->chipset < 0xd0)
-		nv_wr32(dev, 0x611200, 0x00003300);
+		nv_wr32(dev, 0x611200, 0x00003330);
 	else
 		nv_wr32(dev, 0x62c000, 0x03030300);
 }
diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c
index d0d60e1e7f9..8a2fc89b776 100644
--- a/drivers/gpu/drm/nouveau/nvd0_display.c
+++ b/drivers/gpu/drm/nouveau/nvd0_display.c
@@ -790,7 +790,7 @@ nvd0_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	int ch = EVO_CURS(nv_crtc->index);
 
-	evo_piow(crtc->dev, ch, 0x0084, (y << 16) | x);
+	evo_piow(crtc->dev, ch, 0x0084, (y << 16) | (x & 0xffff));
 	evo_piow(crtc->dev, ch, 0x0080, 0x00000000);
 	return 0;
 }
@@ -1510,10 +1510,10 @@ nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
 	case OUTPUT_DP:
 		if (nv_connector->base.display_info.bpc == 6) {
 			nv_encoder->dp.datarate = mode->clock * 18 / 8;
-			syncs |= 0x00000140;
+			syncs |= 0x00000002 << 6;
 		} else {
 			nv_encoder->dp.datarate = mode->clock * 24 / 8;
-			syncs |= 0x00000180;
+			syncs |= 0x00000005 << 6;
 		}
 
 		if (nv_encoder->dcb->sorconf.link & 1)
diff --git a/drivers/gpu/drm/nouveau/nve0_fifo.c b/drivers/gpu/drm/nouveau/nve0_fifo.c
index 1855ecbd843..281bece751b 100644
--- a/drivers/gpu/drm/nouveau/nve0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nve0_fifo.c
@@ -294,6 +294,25 @@ nve0_fifo_isr_vm_fault(struct drm_device *dev, int unit)
 	printk(" on channel 0x%010llx\n", (u64)inst << 12);
 }
 
+static int
+nve0_fifo_page_flip(struct drm_device *dev, u32 chid)
+{
+	struct nve0_fifo_priv *priv = nv_engine(dev, NVOBJ_ENGINE_FIFO);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_channel *chan = NULL;
+	unsigned long flags;
+	int ret = -EINVAL;
+
+	spin_lock_irqsave(&dev_priv->channels.lock, flags);
+	if (likely(chid >= 0 && chid < priv->base.channels)) {
+		chan = dev_priv->channels.ptr[chid];
+		if (likely(chan))
+			ret = nouveau_finish_page_flip(chan, NULL);
+	}
+	spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
+	return ret;
+}
+
 static void
 nve0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
 {
@@ -303,11 +322,21 @@ nve0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
 	u32 chid = nv_rd32(dev, 0x040120 + (unit * 0x2000)) & 0x7f;
 	u32 subc = (addr & 0x00070000);
 	u32 mthd = (addr & 0x00003ffc);
+	u32 show = stat;
+
+	if (stat & 0x00200000) {
+		if (mthd == 0x0054) {
+			if (!nve0_fifo_page_flip(dev, chid))
+				show &= ~0x00200000;
+		}
+	}
 
-	NV_INFO(dev, "PSUBFIFO %d:", unit);
-	nouveau_bitfield_print(nve0_fifo_subfifo_intr, stat);
-	NV_INFO(dev, "PSUBFIFO %d: ch %d subc %d mthd 0x%04x data 0x%08x\n",
-		unit, chid, subc, mthd, data);
+	if (show) {
+		NV_INFO(dev, "PFIFO%d:", unit);
+		nouveau_bitfield_print(nve0_fifo_subfifo_intr, show);
+		NV_INFO(dev, "PFIFO%d: ch %d subc %d mthd 0x%04x data 0x%08x\n",
+			unit, chid, subc, mthd, data);
+	}
 
 	nv_wr32(dev, 0x0400c0 + (unit * 0x2000), 0x80600008);
 	nv_wr32(dev, 0x040108 + (unit * 0x2000), stat);
@@ -316,7 +345,8 @@ nve0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
 static void
 nve0_fifo_isr(struct drm_device *dev)
 {
-	u32 stat = nv_rd32(dev, 0x002100);
+	u32 mask = nv_rd32(dev, 0x002140);
+	u32 stat = nv_rd32(dev, 0x002100) & mask;
 
 	if (stat & 0x00000100) {
 		NV_INFO(dev, "PFIFO: unknown status 0x00000100\n");
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 9e6f76fec52..2817101fb16 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -258,8 +258,7 @@ void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
 		radeon_crtc->enabled = true;
 		/* adjust pm to dpms changes BEFORE enabling crtcs */
 		radeon_pm_compute_clocks(rdev);
-		/* disable crtc pair power gating before programming */
-		if (ASIC_IS_DCE6(rdev))
+		if (ASIC_IS_DCE6(rdev) && !radeon_crtc->in_mode_set)
 			atombios_powergate_crtc(crtc, ATOM_DISABLE);
 		atombios_enable_crtc(crtc, ATOM_ENABLE);
 		if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
@@ -278,25 +277,8 @@ void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
 			atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
 		atombios_enable_crtc(crtc, ATOM_DISABLE);
 		radeon_crtc->enabled = false;
-		/* power gating is per-pair */
-		if (ASIC_IS_DCE6(rdev)) {
-			struct drm_crtc *other_crtc;
-			struct radeon_crtc *other_radeon_crtc;
-			list_for_each_entry(other_crtc, &rdev->ddev->mode_config.crtc_list, head) {
-				other_radeon_crtc = to_radeon_crtc(other_crtc);
-				if (((radeon_crtc->crtc_id == 0) && (other_radeon_crtc->crtc_id == 1)) ||
-				    ((radeon_crtc->crtc_id == 1) && (other_radeon_crtc->crtc_id == 0)) ||
-				    ((radeon_crtc->crtc_id == 2) && (other_radeon_crtc->crtc_id == 3)) ||
-				    ((radeon_crtc->crtc_id == 3) && (other_radeon_crtc->crtc_id == 2)) ||
-				    ((radeon_crtc->crtc_id == 4) && (other_radeon_crtc->crtc_id == 5)) ||
-				    ((radeon_crtc->crtc_id == 5) && (other_radeon_crtc->crtc_id == 4))) {
-					/* if both crtcs in the pair are off, enable power gating */
-					if (other_radeon_crtc->enabled == false)
-						atombios_powergate_crtc(crtc, ATOM_ENABLE);
-					break;
-				}
-			}
-		}
+		if (ASIC_IS_DCE6(rdev) && !radeon_crtc->in_mode_set)
+			atombios_powergate_crtc(crtc, ATOM_ENABLE);
 		/* adjust pm to dpms changes AFTER disabling crtcs */
 		radeon_pm_compute_clocks(rdev);
 		break;
@@ -444,11 +426,28 @@ union atom_enable_ss {
 static void atombios_crtc_program_ss(struct radeon_device *rdev,
 				     int enable,
 				     int pll_id,
+				     int crtc_id,
 				     struct radeon_atom_ss *ss)
 {
+	unsigned i;
 	int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
 	union atom_enable_ss args;
 
+	if (!enable) {
+		for (i = 0; i < rdev->num_crtc; i++) {
+			if (rdev->mode_info.crtcs[i] &&
+			    rdev->mode_info.crtcs[i]->enabled &&
+			    i != crtc_id &&
+			    pll_id == rdev->mode_info.crtcs[i]->pll_id) {
+				/* one other crtc is using this pll don't turn
+				 * off spread spectrum as it might turn off
+				 * display on active crtc
+				 */
+				return;
+			}
+		}
+	}
+
 	memset(&args, 0, sizeof(args));
 
 	if (ASIC_IS_DCE5(rdev)) {
@@ -1028,7 +1027,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
 		radeon_compute_pll_legacy(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
 					  &ref_div, &post_div);
 
-	atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id, &ss);
+	atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id, radeon_crtc->crtc_id, &ss);
 
 	atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
 				  encoder_mode, radeon_encoder->encoder_id, mode->clock,
@@ -1051,7 +1050,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
 			ss.step = step_size;
 		}
 
-		atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id, &ss);
+		atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id, radeon_crtc->crtc_id, &ss);
 	}
 }
 
@@ -1531,12 +1530,12 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc)
 				 * crtc virtual pixel clock.
 				 */
 				if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_encoder))) {
-					if (ASIC_IS_DCE5(rdev))
-						return ATOM_DCPLL;
+					if (rdev->clock.dp_extclk)
+						return ATOM_PPLL_INVALID;
 					else if (ASIC_IS_DCE6(rdev))
 						return ATOM_PPLL0;
-					else if (rdev->clock.dp_extclk)
-						return ATOM_PPLL_INVALID;
+					else if (ASIC_IS_DCE5(rdev))
+						return ATOM_DCPLL;
 				}
 			}
 		}
@@ -1572,11 +1571,11 @@ void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev)
 								   ASIC_INTERNAL_SS_ON_DCPLL,
 								   rdev->clock.default_dispclk);
 		if (ss_enabled)
-			atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, &ss);
+			atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
 		/* XXX: DCE5, make sure voltage, dispclk is high enough */
 		atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
 		if (ss_enabled)
-			atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, &ss);
+			atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
 	}
 
 }
@@ -1635,18 +1634,28 @@ static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
 static void atombios_crtc_prepare(struct drm_crtc *crtc)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+	struct drm_device *dev = crtc->dev;
+	struct radeon_device *rdev = dev->dev_private;
 
+	radeon_crtc->in_mode_set = true;
 	/* pick pll */
 	radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
 
+	/* disable crtc pair power gating before programming */
+	if (ASIC_IS_DCE6(rdev))
+		atombios_powergate_crtc(crtc, ATOM_DISABLE);
+
 	atombios_lock_crtc(crtc, ATOM_ENABLE);
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 }
 
 static void atombios_crtc_commit(struct drm_crtc *crtc)
 {
+	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
 	atombios_lock_crtc(crtc, ATOM_DISABLE);
+	radeon_crtc->in_mode_set = false;
 }
 
 static void atombios_crtc_disable(struct drm_crtc *crtc)
@@ -1655,9 +1664,22 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
 	struct drm_device *dev = crtc->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_atom_ss ss;
+	int i;
 
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 
+	for (i = 0; i < rdev->num_crtc; i++) {
+		if (rdev->mode_info.crtcs[i] &&
+		    rdev->mode_info.crtcs[i]->enabled &&
+		    i != radeon_crtc->crtc_id &&
+		    radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
+			/* one other crtc is using this pll don't turn
+			 * off the pll
+			 */
+			goto done;
+		}
+	}
+
 	switch (radeon_crtc->pll_id) {
 	case ATOM_PPLL1:
 	case ATOM_PPLL2:
@@ -1674,6 +1696,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
 	default:
 		break;
 	}
+done:
 	radeon_crtc->pll_id = -1;
 }
 
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 7712cf5ab33..3623b98ed3f 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -577,30 +577,25 @@ int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	int panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE;
+	u16 dp_bridge = radeon_connector_encoder_get_dp_bridge_encoder_id(connector);
+	u8 tmp;
 
 	if (!ASIC_IS_DCE4(rdev))
 		return panel_mode;
 
-	if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) ==
-	    ENCODER_OBJECT_ID_NUTMEG)
-		panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE;
-	else if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) ==
-		 ENCODER_OBJECT_ID_TRAVIS) {
-		u8 id[6];
-		int i;
-		for (i = 0; i < 6; i++)
-			id[i] = radeon_read_dpcd_reg(radeon_connector, 0x503 + i);
-		if (id[0] == 0x73 &&
-		    id[1] == 0x69 &&
-		    id[2] == 0x76 &&
-		    id[3] == 0x61 &&
-		    id[4] == 0x72 &&
-		    id[5] == 0x54)
+	if (dp_bridge != ENCODER_OBJECT_ID_NONE) {
+		/* DP bridge chips */
+		tmp = radeon_read_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_CAP);
+		if (tmp & 1)
+			panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
+		else if ((dp_bridge == ENCODER_OBJECT_ID_NUTMEG) ||
+			 (dp_bridge == ENCODER_OBJECT_ID_TRAVIS))
 			panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE;
 		else
-			panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
+			panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE;
 	} else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
-		u8 tmp = radeon_read_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_CAP);
+		/* eDP */
+		tmp = radeon_read_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_CAP);
 		if (tmp & 1)
 			panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
 	}
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index f9bc27fe269..6e8803a1170 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1379,6 +1379,8 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+	struct drm_encoder *ext_encoder = radeon_get_external_encoder(encoder);
+	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 	struct radeon_connector *radeon_connector = NULL;
 	struct radeon_connector_atom_dig *radeon_dig_connector = NULL;
@@ -1390,19 +1392,37 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 
 	switch (mode) {
 	case DRM_MODE_DPMS_ON:
-		/* some early dce3.2 boards have a bug in their transmitter control table */
-		if ((rdev->family == CHIP_RV710) || (rdev->family == CHIP_RV730) ||
-		    ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
-			if (ASIC_IS_DCE6(rdev)) {
-				/* It seems we need to call ATOM_ENCODER_CMD_SETUP again
-				 * before reenabling encoder on DPMS ON, otherwise we never
-				 * get picture
-				 */
-				atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
+		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
+			if (!connector)
+				dig->panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE;
+			else
+				dig->panel_mode = radeon_dp_get_panel_mode(encoder, connector);
+
+			/* setup and enable the encoder */
+			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
+			atombios_dig_encoder_setup(encoder,
+						   ATOM_ENCODER_CMD_SETUP_PANEL_MODE,
+						   dig->panel_mode);
+			if (ext_encoder) {
+				if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))
+					atombios_external_encoder_setup(encoder, ext_encoder,
+									EXTERNAL_ENCODER_ACTION_V3_ENCODER_SETUP);
 			}
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
-		} else {
+		} else if (ASIC_IS_DCE4(rdev)) {
+			/* setup and enable the encoder */
+			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
+			/* enable the transmitter */
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
+		} else {
+			/* setup and enable the encoder and transmitter */
+			atombios_dig_encoder_setup(encoder, ATOM_ENABLE, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
+			/* some early dce3.2 boards have a bug in their transmitter control table */
+			if ((rdev->family != CHIP_RV710) || (rdev->family != CHIP_RV730))
+				atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
 		}
 		if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
 			if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
@@ -1420,10 +1440,19 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 	case DRM_MODE_DPMS_STANDBY:
 	case DRM_MODE_DPMS_SUSPEND:
 	case DRM_MODE_DPMS_OFF:
-		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev))
+		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
+			/* disable the transmitter */
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-		else
+		} else if (ASIC_IS_DCE4(rdev)) {
+			/* disable the transmitter */
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE_OUTPUT, 0, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
+		} else {
+			/* disable the encoder and transmitter */
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE_OUTPUT, 0, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
+			atombios_dig_encoder_setup(encoder, ATOM_DISABLE, 0);
+		}
 		if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
 			if (ASIC_IS_DCE4(rdev))
 				atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_OFF, 0);
@@ -1740,13 +1769,34 @@ static int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder)
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct drm_encoder *test_encoder;
-	struct radeon_encoder_atom_dig *dig;
+	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 	uint32_t dig_enc_in_use = 0;
 
-	/* DCE4/5 */
-	if (ASIC_IS_DCE4(rdev)) {
-		dig = radeon_encoder->enc_priv;
-		if (ASIC_IS_DCE41(rdev)) {
+	if (ASIC_IS_DCE6(rdev)) {
+		/* DCE6 */
+		switch (radeon_encoder->encoder_id) {
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+			if (dig->linkb)
+				return 1;
+			else
+				return 0;
+			break;
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+			if (dig->linkb)
+				return 3;
+			else
+				return 2;
+			break;
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+			if (dig->linkb)
+				return 5;
+			else
+				return 4;
+			break;
+		}
+	} else if (ASIC_IS_DCE4(rdev)) {
+		/* DCE4/5 */
+		if (ASIC_IS_DCE41(rdev) && !ASIC_IS_DCE61(rdev)) {
 			/* ontario follows DCE4 */
 			if (rdev->family == CHIP_PALM) {
 				if (dig->linkb)
@@ -1848,10 +1898,12 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-	struct drm_encoder *ext_encoder = radeon_get_external_encoder(encoder);
 
 	radeon_encoder->pixel_clock = adjusted_mode->clock;
 
+	/* need to call this here rather than in prepare() since we need some crtc info */
+	radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+
 	if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE4(rdev)) {
 		if (radeon_encoder->active_device & (ATOM_DEVICE_CV_SUPPORT | ATOM_DEVICE_TV_SUPPORT))
 			atombios_yuv_setup(encoder, true);
@@ -1870,38 +1922,7 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
-		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
-			struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
-			struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-
-			if (!connector)
-				dig->panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE;
-			else
-				dig->panel_mode = radeon_dp_get_panel_mode(encoder, connector);
-
-			/* setup and enable the encoder */
-			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
-			atombios_dig_encoder_setup(encoder,
-						   ATOM_ENCODER_CMD_SETUP_PANEL_MODE,
-						   dig->panel_mode);
-		} else if (ASIC_IS_DCE4(rdev)) {
-			/* disable the transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-			/* setup and enable the encoder */
-			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
-
-			/* enable the transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
-		} else {
-			/* disable the encoder and transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-			atombios_dig_encoder_setup(encoder, ATOM_DISABLE, 0);
-
-			/* setup and enable the encoder and transmitter */
-			atombios_dig_encoder_setup(encoder, ATOM_ENABLE, 0);
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0);
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
-		}
+		/* handled in dpms */
 		break;
 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
@@ -1922,14 +1943,6 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 		break;
 	}
 
-	if (ext_encoder) {
-		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))
-			atombios_external_encoder_setup(encoder, ext_encoder,
-							EXTERNAL_ENCODER_ACTION_V3_ENCODER_SETUP);
-		else
-			atombios_external_encoder_setup(encoder, ext_encoder, ATOM_ENABLE);
-	}
-
 	atombios_apply_encoder_quirks(encoder, adjusted_mode);
 
 	if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_HDMI) {
@@ -2116,7 +2129,6 @@ static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
 	}
 
 	radeon_atom_output_lock(encoder, true);
-	radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
 
 	if (connector) {
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
@@ -2137,6 +2149,7 @@ static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
 
 static void radeon_atom_encoder_commit(struct drm_encoder *encoder)
 {
+	/* need to call this here as we need the crtc set up */
 	radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
 	radeon_atom_output_lock(encoder, false);
 }
@@ -2177,14 +2190,7 @@ static void radeon_atom_encoder_disable(struct drm_encoder *encoder)
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
-		if (ASIC_IS_DCE4(rdev))
-			/* disable the transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-		else {
-			/* disable the encoder and transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-			atombios_dig_encoder_setup(encoder, ATOM_DISABLE, 0);
-		}
+		/* handled in dpms */
 		break;
 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index e585a3b947e..ed3340adeb6 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -77,13 +77,9 @@ void evergreen_tiling_fields(unsigned tiling_flags, unsigned *bankw,
 void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
 {
 	u16 ctl, v;
-	int cap, err;
+	int err;
 
-	cap = pci_pcie_cap(rdev->pdev);
-	if (!cap)
-		return;
-
-	err = pci_read_config_word(rdev->pdev, cap + PCI_EXP_DEVCTL, &ctl);
+	err = pcie_capability_read_word(rdev->pdev, PCI_EXP_DEVCTL, &ctl);
 	if (err)
 		return;
 
@@ -95,7 +91,7 @@ void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
 	if ((v == 0) || (v == 6) || (v == 7)) {
 		ctl &= ~PCI_EXP_DEVCTL_READRQ;
 		ctl |= (2 << 12);
-		pci_write_config_word(rdev->pdev, cap + PCI_EXP_DEVCTL, ctl);
+		pcie_capability_write_word(rdev->pdev, PCI_EXP_DEVCTL, ctl);
 	}
 }
 
@@ -1229,24 +1225,8 @@ void evergreen_agp_enable(struct radeon_device *rdev)
 
 void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
 {
-	save->vga_control[0] = RREG32(D1VGA_CONTROL);
-	save->vga_control[1] = RREG32(D2VGA_CONTROL);
 	save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
 	save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
-	save->crtc_control[0] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET);
-	save->crtc_control[1] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
-	if (rdev->num_crtc >= 4) {
-		save->vga_control[2] = RREG32(EVERGREEN_D3VGA_CONTROL);
-		save->vga_control[3] = RREG32(EVERGREEN_D4VGA_CONTROL);
-		save->crtc_control[2] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET);
-		save->crtc_control[3] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
-	}
-	if (rdev->num_crtc >= 6) {
-		save->vga_control[4] = RREG32(EVERGREEN_D5VGA_CONTROL);
-		save->vga_control[5] = RREG32(EVERGREEN_D6VGA_CONTROL);
-		save->crtc_control[4] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET);
-		save->crtc_control[5] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
-	}
 
 	/* Stop all video */
 	WREG32(VGA_RENDER_CONTROL, 0);
@@ -1357,47 +1337,6 @@ void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *s
 	/* Unlock host access */
 	WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
 	mdelay(1);
-	/* Restore video state */
-	WREG32(D1VGA_CONTROL, save->vga_control[0]);
-	WREG32(D2VGA_CONTROL, save->vga_control[1]);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_D3VGA_CONTROL, save->vga_control[2]);
-		WREG32(EVERGREEN_D4VGA_CONTROL, save->vga_control[3]);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_D5VGA_CONTROL, save->vga_control[4]);
-		WREG32(EVERGREEN_D6VGA_CONTROL, save->vga_control[5]);
-	}
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
-	}
-	WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, save->crtc_control[0]);
-	WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, save->crtc_control[1]);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, save->crtc_control[2]);
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, save->crtc_control[3]);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, save->crtc_control[4]);
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, save->crtc_control[5]);
-	}
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
-	}
 	WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
 }
 
@@ -1986,10 +1925,18 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 	if (rdev->flags & RADEON_IS_IGP)
 		rdev->config.evergreen.tile_config |= 1 << 4;
 	else {
-		if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
-			rdev->config.evergreen.tile_config |= 1 << 4;
-		else
+		switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
+		case 0: /* four banks */
 			rdev->config.evergreen.tile_config |= 0 << 4;
+			break;
+		case 1: /* eight banks */
+			rdev->config.evergreen.tile_config |= 1 << 4;
+			break;
+		case 2: /* sixteen banks */
+		default:
+			rdev->config.evergreen.tile_config |= 2 << 4;
+			break;
+		}
 	}
 	rdev->config.evergreen.tile_config |= 0 << 8;
 	rdev->config.evergreen.tile_config |=
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index c16554122cc..e44a62a07fe 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -788,6 +788,13 @@ static int evergreen_cs_track_validate_texture(struct radeon_cs_parser *p,
 	case V_030000_SQ_TEX_DIM_1D_ARRAY:
 	case V_030000_SQ_TEX_DIM_2D_ARRAY:
 		depth = 1;
+		break;
+	case V_030000_SQ_TEX_DIM_2D_MSAA:
+	case V_030000_SQ_TEX_DIM_2D_ARRAY_MSAA:
+		surf.nsamples = 1 << llevel;
+		llevel = 0;
+		depth = 1;
+		break;
 	case V_030000_SQ_TEX_DIM_3D:
 		break;
 	default:
@@ -961,13 +968,15 @@ static int evergreen_cs_track_check(struct radeon_cs_parser *p)
 
 	if (track->db_dirty) {
 		/* Check stencil buffer */
-		if (G_028800_STENCIL_ENABLE(track->db_depth_control)) {
+		if (G_028044_FORMAT(track->db_s_info) != V_028044_STENCIL_INVALID &&
+		    G_028800_STENCIL_ENABLE(track->db_depth_control)) {
 			r = evergreen_cs_track_validate_stencil(p);
 			if (r)
 				return r;
 		}
 		/* Check depth buffer */
-		if (G_028800_Z_ENABLE(track->db_depth_control)) {
+		if (G_028040_FORMAT(track->db_z_info) != V_028040_Z_INVALID &&
+		    G_028800_Z_ENABLE(track->db_depth_control)) {
 			r = evergreen_cs_track_validate_depth(p);
 			if (r)
 				return r;
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index d3bd098e4e1..79347855d9b 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -1277,6 +1277,8 @@
 #define   S_028044_FORMAT(x)                           (((x) & 0x1) << 0)
 #define   G_028044_FORMAT(x)                           (((x) >> 0) & 0x1)
 #define   C_028044_FORMAT                              0xFFFFFFFE
+#define	    V_028044_STENCIL_INVALID			0
+#define	    V_028044_STENCIL_8				1
 #define   G_028044_TILE_SPLIT(x)                       (((x) >> 8) & 0x7)
 #define DB_Z_READ_BASE					0x28048
 #define DB_STENCIL_READ_BASE				0x2804c
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 9945d86d900..853800e8582 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -574,10 +574,18 @@ static void cayman_gpu_init(struct radeon_device *rdev)
 	if (rdev->flags & RADEON_IS_IGP)
 		rdev->config.cayman.tile_config |= 1 << 4;
 	else {
-		if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
-			rdev->config.cayman.tile_config |= 1 << 4;
-		else
+		switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
+		case 0: /* four banks */
 			rdev->config.cayman.tile_config |= 0 << 4;
+			break;
+		case 1: /* eight banks */
+			rdev->config.cayman.tile_config |= 1 << 4;
+			break;
+		case 2: /* sixteen banks */
+		default:
+			rdev->config.cayman.tile_config |= 2 << 4;
+			break;
+		}
 	}
 	rdev->config.cayman.tile_config |=
 		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 8acb34fd3fd..8d7e33a0b24 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1182,7 +1182,8 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 	ring->ready = true;
 	radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
 
-	if (radeon_ring_supports_scratch_reg(rdev, ring)) {
+	if (!ring->rptr_save_reg /* not resuming from suspend */
+	    && radeon_ring_supports_scratch_reg(rdev, ring)) {
 		r = radeon_scratch_get(rdev, &ring->rptr_save_reg);
 		if (r) {
 			DRM_ERROR("failed to get scratch reg for rptr save (%d).\n", r);
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 637280f541a..d79c639ae73 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3789,3 +3789,23 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
 		WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
 	}
 }
+
+/**
+ * r600_get_gpu_clock - return GPU clock counter snapshot
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Fetches a GPU clock counter snapshot (R6xx-cayman).
+ * Returns the 64 bit clock counter snapshot.
+ */
+uint64_t r600_get_gpu_clock(struct radeon_device *rdev)
+{
+	uint64_t clock;
+
+	mutex_lock(&rdev->gpu_clock_mutex);
+	WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);
+	clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |
+	        ((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
+	mutex_unlock(&rdev->gpu_clock_mutex);
+	return clock;
+}
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index ca87f7afaf2..f37676d7f21 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -47,18 +47,23 @@ struct r600_cs_track {
 	u32			npipes;
 	/* value we track */
 	u32			sq_config;
+	u32			log_nsamples;
 	u32			nsamples;
 	u32			cb_color_base_last[8];
 	struct radeon_bo	*cb_color_bo[8];
 	u64			cb_color_bo_mc[8];
-	u32			cb_color_bo_offset[8];
-	struct radeon_bo	*cb_color_frag_bo[8]; /* unused */
-	struct radeon_bo	*cb_color_tile_bo[8]; /* unused */
+	u64			cb_color_bo_offset[8];
+	struct radeon_bo	*cb_color_frag_bo[8];
+	u64			cb_color_frag_offset[8];
+	struct radeon_bo	*cb_color_tile_bo[8];
+	u64			cb_color_tile_offset[8];
+	u32			cb_color_mask[8];
 	u32			cb_color_info[8];
 	u32			cb_color_view[8];
 	u32			cb_color_size_idx[8]; /* unused */
 	u32			cb_target_mask;
 	u32			cb_shader_mask;  /* unused */
+	bool			is_resolve;
 	u32			cb_color_size[8];
 	u32			vgt_strmout_en;
 	u32			vgt_strmout_buffer_en;
@@ -311,7 +316,15 @@ static void r600_cs_track_init(struct r600_cs_track *track)
 		track->cb_color_bo[i] = NULL;
 		track->cb_color_bo_offset[i] = 0xFFFFFFFF;
 		track->cb_color_bo_mc[i] = 0xFFFFFFFF;
-	}
+		track->cb_color_frag_bo[i] = NULL;
+		track->cb_color_frag_offset[i] = 0xFFFFFFFF;
+		track->cb_color_tile_bo[i] = NULL;
+		track->cb_color_tile_offset[i] = 0xFFFFFFFF;
+		track->cb_color_mask[i] = 0xFFFFFFFF;
+	}
+	track->is_resolve = false;
+	track->nsamples = 16;
+	track->log_nsamples = 4;
 	track->cb_target_mask = 0xFFFFFFFF;
 	track->cb_shader_mask = 0xFFFFFFFF;
 	track->cb_dirty = true;
@@ -348,11 +361,9 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 	volatile u32 *ib = p->ib.ptr;
 	unsigned array_mode;
 	u32 format;
+	/* When resolve is used, the second colorbuffer has always 1 sample. */
+	unsigned nsamples = track->is_resolve && i == 1 ? 1 : track->nsamples;
 
-	if (G_0280A0_TILE_MODE(track->cb_color_info[i])) {
-		dev_warn(p->dev, "FMASK or CMASK buffer are not supported by this kernel\n");
-		return -EINVAL;
-	}
 	size = radeon_bo_size(track->cb_color_bo[i]) - track->cb_color_bo_offset[i];
 	format = G_0280A0_FORMAT(track->cb_color_info[i]);
 	if (!r600_fmt_is_valid_color(format)) {
@@ -375,7 +386,7 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 	array_check.group_size = track->group_size;
 	array_check.nbanks = track->nbanks;
 	array_check.npipes = track->npipes;
-	array_check.nsamples = track->nsamples;
+	array_check.nsamples = nsamples;
 	array_check.blocksize = r600_fmt_get_blocksize(format);
 	if (r600_get_array_mode_alignment(&array_check,
 					  &pitch_align, &height_align, &depth_align, &base_align)) {
@@ -420,7 +431,8 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 	}
 
 	/* check offset */
-	tmp = r600_fmt_get_nblocksy(format, height) * r600_fmt_get_nblocksx(format, pitch) * r600_fmt_get_blocksize(format);
+	tmp = r600_fmt_get_nblocksy(format, height) * r600_fmt_get_nblocksx(format, pitch) *
+	      r600_fmt_get_blocksize(format) * nsamples;
 	switch (array_mode) {
 	default:
 	case V_0280A0_ARRAY_LINEAR_GENERAL:
@@ -441,7 +453,7 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 			 * broken userspace.
 			 */
 		} else {
-			dev_warn(p->dev, "%s offset[%d] %d %d %d %lu too big (%d %d) (%d %d %d)\n",
+			dev_warn(p->dev, "%s offset[%d] %d %llu %d %lu too big (%d %d) (%d %d %d)\n",
 				 __func__, i, array_mode,
 				 track->cb_color_bo_offset[i], tmp,
 				 radeon_bo_size(track->cb_color_bo[i]),
@@ -458,6 +470,51 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 	tmp = S_028060_PITCH_TILE_MAX((pitch / 8) - 1) |
 		S_028060_SLICE_TILE_MAX(slice_tile_max - 1);
 	ib[track->cb_color_size_idx[i]] = tmp;
+
+	/* FMASK/CMASK */
+	switch (G_0280A0_TILE_MODE(track->cb_color_info[i])) {
+	case V_0280A0_TILE_DISABLE:
+		break;
+	case V_0280A0_FRAG_ENABLE:
+		if (track->nsamples > 1) {
+			uint32_t tile_max = G_028100_FMASK_TILE_MAX(track->cb_color_mask[i]);
+			/* the tile size is 8x8, but the size is in units of bits.
+			 * for bytes, do just * 8. */
+			uint32_t bytes = track->nsamples * track->log_nsamples * 8 * (tile_max + 1);
+
+			if (bytes + track->cb_color_frag_offset[i] >
+			    radeon_bo_size(track->cb_color_frag_bo[i])) {
+				dev_warn(p->dev, "%s FMASK_TILE_MAX too large "
+					 "(tile_max=%u, bytes=%u, offset=%llu, bo_size=%lu)\n",
+					 __func__, tile_max, bytes,
+					 track->cb_color_frag_offset[i],
+					 radeon_bo_size(track->cb_color_frag_bo[i]));
+				return -EINVAL;
+			}
+		}
+		/* fall through */
+	case V_0280A0_CLEAR_ENABLE:
+	{
+		uint32_t block_max = G_028100_CMASK_BLOCK_MAX(track->cb_color_mask[i]);
+		/* One block = 128x128 pixels, one 8x8 tile has 4 bits..
+		 * (128*128) / (8*8) / 2 = 128 bytes per block. */
+		uint32_t bytes = (block_max + 1) * 128;
+
+		if (bytes + track->cb_color_tile_offset[i] >
+		    radeon_bo_size(track->cb_color_tile_bo[i])) {
+			dev_warn(p->dev, "%s CMASK_BLOCK_MAX too large "
+				 "(block_max=%u, bytes=%u, offset=%llu, bo_size=%lu)\n",
+				 __func__, block_max, bytes,
+				 track->cb_color_tile_offset[i],
+				 radeon_bo_size(track->cb_color_tile_bo[i]));
+			return -EINVAL;
+		}
+		break;
+	}
+	default:
+		dev_warn(p->dev, "%s invalid tile mode\n", __func__);
+		return -EINVAL;
+	}
 	return 0;
 }
 
@@ -566,7 +623,7 @@ static int r600_cs_track_validate_db(struct radeon_cs_parser *p)
 
 		ntiles = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
 		nviews = G_028004_SLICE_MAX(track->db_depth_view) + 1;
-		tmp = ntiles * bpe * 64 * nviews;
+		tmp = ntiles * bpe * 64 * nviews * track->nsamples;
 		if ((tmp + track->db_offset) > radeon_bo_size(track->db_bo)) {
 			dev_warn(p->dev, "z/stencil buffer (%d) too small (0x%08X %d %d %d -> %u have %lu)\n",
 					array_mode,
@@ -746,6 +803,12 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
 	 */
 	if (track->cb_dirty) {
 		tmp = track->cb_target_mask;
+
+		/* We must check both colorbuffers for RESOLVE. */
+		if (track->is_resolve) {
+			tmp |= 0xff;
+		}
+
 		for (i = 0; i < 8; i++) {
 			if ((tmp >> (i * 4)) & 0xF) {
 				/* at least one component is enabled */
@@ -764,8 +827,10 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
 	}
 
 	/* Check depth buffer */
-	if (track->db_dirty && (G_028800_STENCIL_ENABLE(track->db_depth_control) ||
-		G_028800_Z_ENABLE(track->db_depth_control))) {
+	if (track->db_dirty &&
+	    G_028010_FORMAT(track->db_depth_info) != V_028010_DEPTH_INVALID &&
+	    (G_028800_STENCIL_ENABLE(track->db_depth_control) ||
+	     G_028800_Z_ENABLE(track->db_depth_control))) {
 		r = r600_cs_track_validate_db(p);
 		if (r)
 			return r;
@@ -1229,9 +1294,15 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 		break;
 	case R_028C04_PA_SC_AA_CONFIG:
 		tmp = G_028C04_MSAA_NUM_SAMPLES(radeon_get_ib_value(p, idx));
+		track->log_nsamples = tmp;
 		track->nsamples = 1 << tmp;
 		track->cb_dirty = true;
 		break;
+	case R_028808_CB_COLOR_CONTROL:
+		tmp = G_028808_SPECIAL_OP(radeon_get_ib_value(p, idx));
+		track->is_resolve = tmp == V_028808_SPECIAL_RESOLVE_BOX;
+		track->cb_dirty = true;
+		break;
 	case R_0280A0_CB_COLOR0_INFO:
 	case R_0280A4_CB_COLOR1_INFO:
 	case R_0280A8_CB_COLOR2_INFO:
@@ -1310,16 +1381,21 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 				dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
 				return -EINVAL;
 			}
-			ib[idx] = track->cb_color_base_last[tmp];
 			track->cb_color_frag_bo[tmp] = track->cb_color_bo[tmp];
+			track->cb_color_frag_offset[tmp] = track->cb_color_bo_offset[tmp];
+			ib[idx] = track->cb_color_base_last[tmp];
 		} else {
 			r = r600_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
 				return -EINVAL;
 			}
-			ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 			track->cb_color_frag_bo[tmp] = reloc->robj;
+			track->cb_color_frag_offset[tmp] = (u64)ib[idx] << 8;
+			ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
+		}
+		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
+			track->cb_dirty = true;
 		}
 		break;
 	case R_0280C0_CB_COLOR0_TILE:
@@ -1336,16 +1412,35 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 				dev_err(p->dev, "Broken old userspace ? no cb_color0_base supplied before trying to write 0x%08X\n", reg);
 				return -EINVAL;
 			}
-			ib[idx] = track->cb_color_base_last[tmp];
 			track->cb_color_tile_bo[tmp] = track->cb_color_bo[tmp];
+			track->cb_color_tile_offset[tmp] = track->cb_color_bo_offset[tmp];
+			ib[idx] = track->cb_color_base_last[tmp];
 		} else {
 			r = r600_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				dev_err(p->dev, "bad SET_CONTEXT_REG 0x%04X\n", reg);
 				return -EINVAL;
 			}
-			ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 			track->cb_color_tile_bo[tmp] = reloc->robj;
+			track->cb_color_tile_offset[tmp] = (u64)ib[idx] << 8;
+			ib[idx] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
+		}
+		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
+			track->cb_dirty = true;
+		}
+		break;
+	case R_028100_CB_COLOR0_MASK:
+	case R_028104_CB_COLOR1_MASK:
+	case R_028108_CB_COLOR2_MASK:
+	case R_02810C_CB_COLOR3_MASK:
+	case R_028110_CB_COLOR4_MASK:
+	case R_028114_CB_COLOR5_MASK:
+	case R_028118_CB_COLOR6_MASK:
+	case R_02811C_CB_COLOR7_MASK:
+		tmp = (reg - R_028100_CB_COLOR0_MASK) / 4;
+		track->cb_color_mask[tmp] = radeon_get_ib_value(p, idx);
+		if (G_0280A0_TILE_MODE(track->cb_color_info[tmp])) {
+			track->cb_dirty = true;
 		}
 		break;
 	case CB_COLOR0_BASE:
@@ -1490,7 +1585,7 @@ unsigned r600_mip_minify(unsigned size, unsigned level)
 }
 
 static void r600_texture_size(unsigned nfaces, unsigned blevel, unsigned llevel,
-			      unsigned w0, unsigned h0, unsigned d0, unsigned format,
+			      unsigned w0, unsigned h0, unsigned d0, unsigned nsamples, unsigned format,
 			      unsigned block_align, unsigned height_align, unsigned base_align,
 			      unsigned *l0_size, unsigned *mipmap_size)
 {
@@ -1518,7 +1613,7 @@ static void r600_texture_size(unsigned nfaces, unsigned blevel, unsigned llevel,
 
 		depth = r600_mip_minify(d0, i);
 
-		size = nbx * nby * blocksize;
+		size = nbx * nby * blocksize * nsamples;
 		if (nfaces)
 			size *= nfaces;
 		else
@@ -1557,13 +1652,14 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
 					      u32 tiling_flags)
 {
 	struct r600_cs_track *track = p->track;
-	u32 nfaces, llevel, blevel, w0, h0, d0;
-	u32 word0, word1, l0_size, mipmap_size, word2, word3;
+	u32 dim, nfaces, llevel, blevel, w0, h0, d0;
+	u32 word0, word1, l0_size, mipmap_size, word2, word3, word4, word5;
 	u32 height_align, pitch, pitch_align, depth_align;
-	u32 array, barray, larray;
+	u32 barray, larray;
 	u64 base_align;
 	struct array_mode_checker array_check;
 	u32 format;
+	bool is_array;
 
 	/* on legacy kernel we don't perform advanced check */
 	if (p->rdev == NULL)
@@ -1581,12 +1677,28 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
 			word0 |= S_038000_TILE_MODE(V_038000_ARRAY_1D_TILED_THIN1);
 	}
 	word1 = radeon_get_ib_value(p, idx + 1);
+	word2 = radeon_get_ib_value(p, idx + 2) << 8;
+	word3 = radeon_get_ib_value(p, idx + 3) << 8;
+	word4 = radeon_get_ib_value(p, idx + 4);
+	word5 = radeon_get_ib_value(p, idx + 5);
+	dim = G_038000_DIM(word0);
 	w0 = G_038000_TEX_WIDTH(word0) + 1;
+	pitch = (G_038000_PITCH(word0) + 1) * 8;
 	h0 = G_038004_TEX_HEIGHT(word1) + 1;
 	d0 = G_038004_TEX_DEPTH(word1);
+	format = G_038004_DATA_FORMAT(word1);
+	blevel = G_038010_BASE_LEVEL(word4);
+	llevel = G_038014_LAST_LEVEL(word5);
+	/* pitch in texels */
+	array_check.array_mode = G_038000_TILE_MODE(word0);
+	array_check.group_size = track->group_size;
+	array_check.nbanks = track->nbanks;
+	array_check.npipes = track->npipes;
+	array_check.nsamples = 1;
+	array_check.blocksize = r600_fmt_get_blocksize(format);
 	nfaces = 1;
-	array = 0;
-	switch (G_038000_DIM(word0)) {
+	is_array = false;
+	switch (dim) {
 	case V_038000_SQ_TEX_DIM_1D:
 	case V_038000_SQ_TEX_DIM_2D:
 	case V_038000_SQ_TEX_DIM_3D:
@@ -1599,29 +1711,25 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
 		break;
 	case V_038000_SQ_TEX_DIM_1D_ARRAY:
 	case V_038000_SQ_TEX_DIM_2D_ARRAY:
-		array = 1;
+		is_array = true;
 		break;
-	case V_038000_SQ_TEX_DIM_2D_MSAA:
 	case V_038000_SQ_TEX_DIM_2D_ARRAY_MSAA:
+		is_array = true;
+		/* fall through */
+	case V_038000_SQ_TEX_DIM_2D_MSAA:
+		array_check.nsamples = 1 << llevel;
+		llevel = 0;
+		break;
 	default:
 		dev_warn(p->dev, "this kernel doesn't support %d texture dim\n", G_038000_DIM(word0));
 		return -EINVAL;
 	}
-	format = G_038004_DATA_FORMAT(word1);
 	if (!r600_fmt_is_valid_texture(format, p->family)) {
 		dev_warn(p->dev, "%s:%d texture invalid format %d\n",
 			 __func__, __LINE__, format);
 		return -EINVAL;
 	}
 
-	/* pitch in texels */
-	pitch = (G_038000_PITCH(word0) + 1) * 8;
-	array_check.array_mode = G_038000_TILE_MODE(word0);
-	array_check.group_size = track->group_size;
-	array_check.nbanks = track->nbanks;
-	array_check.npipes = track->npipes;
-	array_check.nsamples = 1;
-	array_check.blocksize = r600_fmt_get_blocksize(format);
 	if (r600_get_array_mode_alignment(&array_check,
 					  &pitch_align, &height_align, &depth_align, &base_align)) {
 		dev_warn(p->dev, "%s:%d tex array mode (%d) invalid\n",
@@ -1647,24 +1755,17 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
 		return -EINVAL;
 	}
 
-	word2 = radeon_get_ib_value(p, idx + 2) << 8;
-	word3 = radeon_get_ib_value(p, idx + 3) << 8;
-
-	word0 = radeon_get_ib_value(p, idx + 4);
-	word1 = radeon_get_ib_value(p, idx + 5);
-	blevel = G_038010_BASE_LEVEL(word0);
-	llevel = G_038014_LAST_LEVEL(word1);
 	if (blevel > llevel) {
 		dev_warn(p->dev, "texture blevel %d > llevel %d\n",
 			 blevel, llevel);
 	}
-	if (array == 1) {
-		barray = G_038014_BASE_ARRAY(word1);
-		larray = G_038014_LAST_ARRAY(word1);
+	if (is_array) {
+		barray = G_038014_BASE_ARRAY(word5);
+		larray = G_038014_LAST_ARRAY(word5);
 
 		nfaces = larray - barray + 1;
 	}
-	r600_texture_size(nfaces, blevel, llevel, w0, h0, d0, format,
+	r600_texture_size(nfaces, blevel, llevel, w0, h0, d0, array_check.nsamples, format,
 			  pitch_align, height_align, base_align,
 			  &l0_size, &mipmap_size);
 	/* using get ib will give us the offset into the texture bo */
@@ -1677,7 +1778,6 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
 		return -EINVAL;
 	}
 	/* using get ib will give us the offset into the mipmap bo */
-	word3 = radeon_get_ib_value(p, idx + 3) << 8;
 	if ((mipmap_size + word3) > radeon_bo_size(mipmap)) {
 		/*dev_warn(p->dev, "mipmap bo too small (%d %d %d %d %d %d -> %d have %ld)\n",
 		  w0, h0, format, blevel, nlevels, word3, mipmap_size, radeon_bo_size(texture));*/
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index 4b116ae75fc..fa6f37099ba 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -66,6 +66,14 @@
 #define	CC_RB_BACKEND_DISABLE				0x98F4
 #define		BACKEND_DISABLE(x)				((x) << 16)
 
+#define R_028808_CB_COLOR_CONTROL			0x28808
+#define   S_028808_SPECIAL_OP(x)                       (((x) & 0x7) << 4)
+#define   G_028808_SPECIAL_OP(x)                       (((x) >> 4) & 0x7)
+#define   C_028808_SPECIAL_OP                          0xFFFFFF8F
+#define     V_028808_SPECIAL_NORMAL                     0x00
+#define     V_028808_SPECIAL_DISABLE                    0x01
+#define     V_028808_SPECIAL_RESOLVE_BOX                0x07
+
 #define	CB_COLOR0_BASE					0x28040
 #define	CB_COLOR1_BASE					0x28044
 #define	CB_COLOR2_BASE					0x28048
@@ -92,6 +100,20 @@
 #define R_028094_CB_COLOR5_VIEW                      0x028094
 #define R_028098_CB_COLOR6_VIEW                      0x028098
 #define R_02809C_CB_COLOR7_VIEW                      0x02809C
+#define R_028100_CB_COLOR0_MASK                      0x028100
+#define   S_028100_CMASK_BLOCK_MAX(x)                  (((x) & 0xFFF) << 0)
+#define   G_028100_CMASK_BLOCK_MAX(x)                  (((x) >> 0) & 0xFFF)
+#define   C_028100_CMASK_BLOCK_MAX                     0xFFFFF000
+#define   S_028100_FMASK_TILE_MAX(x)                   (((x) & 0xFFFFF) << 12)
+#define   G_028100_FMASK_TILE_MAX(x)                   (((x) >> 12) & 0xFFFFF)
+#define   C_028100_FMASK_TILE_MAX                      0x00000FFF
+#define R_028104_CB_COLOR1_MASK                      0x028104
+#define R_028108_CB_COLOR2_MASK                      0x028108
+#define R_02810C_CB_COLOR3_MASK                      0x02810C
+#define R_028110_CB_COLOR4_MASK                      0x028110
+#define R_028114_CB_COLOR5_MASK                      0x028114
+#define R_028118_CB_COLOR6_MASK                      0x028118
+#define R_02811C_CB_COLOR7_MASK                      0x02811C
 #define CB_COLOR0_INFO                                  0x280a0
 #	define CB_FORMAT(x)				((x) << 2)
 #       define CB_ARRAY_MODE(x)                         ((x) << 8)
@@ -602,6 +624,9 @@
 #define RLC_HB_WPTR                                       0x3f1c
 #define RLC_HB_WPTR_LSB_ADDR                              0x3f14
 #define RLC_HB_WPTR_MSB_ADDR                              0x3f18
+#define RLC_GPU_CLOCK_COUNT_LSB				  0x3f38
+#define RLC_GPU_CLOCK_COUNT_MSB				  0x3f3c
+#define RLC_CAPTURE_GPU_CLOCK_COUNT			  0x3f40
 #define RLC_MC_CNTL                                       0x3f44
 #define RLC_UCODE_CNTL                                    0x3f48
 #define RLC_UCODE_ADDR                                    0x3f2c
@@ -1397,6 +1422,9 @@
 #define   S_0280A0_TILE_MODE(x)                        (((x) & 0x3) << 18)
 #define   G_0280A0_TILE_MODE(x)                        (((x) >> 18) & 0x3)
 #define   C_0280A0_TILE_MODE                           0xFFF3FFFF
+#define     V_0280A0_TILE_DISABLE			0
+#define     V_0280A0_CLEAR_ENABLE			1
+#define     V_0280A0_FRAG_ENABLE			2
 #define   S_0280A0_BLEND_CLAMP(x)                      (((x) & 0x1) << 20)
 #define   G_0280A0_BLEND_CLAMP(x)                      (((x) >> 20) & 0x1)
 #define   C_0280A0_BLEND_CLAMP                         0xFFEFFFFF
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 5431af29240..59a15315ae9 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -142,21 +142,6 @@ struct radeon_device;
 /*
  * BIOS.
  */
-#define ATRM_BIOS_PAGE 4096
-
-#if defined(CONFIG_VGA_SWITCHEROO)
-bool radeon_atrm_supported(struct pci_dev *pdev);
-int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len);
-#else
-static inline bool radeon_atrm_supported(struct pci_dev *pdev)
-{
-	return false;
-}
-
-static inline int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len){
-	return -EINVAL;
-}
-#endif
 bool radeon_get_bios(struct radeon_device *rdev);
 
 /*
@@ -300,6 +285,7 @@ struct radeon_bo_va {
 	uint64_t			soffset;
 	uint64_t			eoffset;
 	uint32_t			flags;
+	struct radeon_fence		*fence;
 	bool				valid;
 };
 
@@ -1533,6 +1519,7 @@ struct radeon_device {
 	unsigned 		debugfs_count;
 	/* virtual memory */
 	struct radeon_vm_manager	vm_manager;
+	struct mutex			gpu_clock_mutex;
 };
 
 int radeon_device_init(struct radeon_device *rdev,
@@ -1733,11 +1720,11 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v);
 #define radeon_pm_finish(rdev) (rdev)->asic->pm.finish((rdev))
 #define radeon_pm_init_profile(rdev) (rdev)->asic->pm.init_profile((rdev))
 #define radeon_pm_get_dynpm_state(rdev) (rdev)->asic->pm.get_dynpm_state((rdev))
-#define radeon_pre_page_flip(rdev, crtc) rdev->asic->pflip.pre_page_flip((rdev), (crtc))
-#define radeon_page_flip(rdev, crtc, base) rdev->asic->pflip.page_flip((rdev), (crtc), (base))
-#define radeon_post_page_flip(rdev, crtc) rdev->asic->pflip.post_page_flip((rdev), (crtc))
-#define radeon_wait_for_vblank(rdev, crtc) rdev->asic->display.wait_for_vblank((rdev), (crtc))
-#define radeon_mc_wait_for_idle(rdev) rdev->asic->mc_wait_for_idle((rdev))
+#define radeon_pre_page_flip(rdev, crtc) (rdev)->asic->pflip.pre_page_flip((rdev), (crtc))
+#define radeon_page_flip(rdev, crtc, base) (rdev)->asic->pflip.page_flip((rdev), (crtc), (base))
+#define radeon_post_page_flip(rdev, crtc) (rdev)->asic->pflip.post_page_flip((rdev), (crtc))
+#define radeon_wait_for_vblank(rdev, crtc) (rdev)->asic->display.wait_for_vblank((rdev), (crtc))
+#define radeon_mc_wait_for_idle(rdev) (rdev)->asic->mc_wait_for_idle((rdev))
 
 /* Common functions */
 /* AGP */
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index f4af2431043..18c38d14c8c 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -255,13 +255,10 @@ extern int rs690_mc_wait_for_idle(struct radeon_device *rdev);
  * rv515
  */
 struct rv515_mc_save {
-	u32 d1vga_control;
-	u32 d2vga_control;
 	u32 vga_render_control;
 	u32 vga_hdp_control;
-	u32 d1crtc_control;
-	u32 d2crtc_control;
 };
+
 int rv515_init(struct radeon_device *rdev);
 void rv515_fini(struct radeon_device *rdev);
 uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg);
@@ -371,6 +368,7 @@ void r600_kms_blit_copy(struct radeon_device *rdev,
 			unsigned num_gpu_pages,
 			struct radeon_sa_bo *vb);
 int r600_mc_wait_for_idle(struct radeon_device *rdev);
+uint64_t r600_get_gpu_clock(struct radeon_device *rdev);
 
 /*
  * rv770,rv730,rv710,rv740
@@ -389,11 +387,10 @@ void r700_cp_fini(struct radeon_device *rdev);
  * evergreen
  */
 struct evergreen_mc_save {
-	u32 vga_control[6];
 	u32 vga_render_control;
 	u32 vga_hdp_control;
-	u32 crtc_control[6];
 };
+
 void evergreen_pcie_gart_tlb_flush(struct radeon_device *rdev);
 int evergreen_init(struct radeon_device *rdev);
 void evergreen_fini(struct radeon_device *rdev);
@@ -472,5 +469,6 @@ int si_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id);
 void si_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm);
 void si_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm);
 int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
+uint64_t si_get_gpu_clock(struct radeon_device *rdev);
 
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index b1e3820df36..d67d4f3eb6f 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -452,7 +452,7 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
 	}
 
 	/* Fujitsu D3003-S2 board lists DVI-I as DVI-D and VGA */
-	if ((dev->pdev->device == 0x9802) &&
+	if (((dev->pdev->device == 0x9802) || (dev->pdev->device == 0x9806)) &&
 	    (dev->pdev->subsystem_vendor == 0x1734) &&
 	    (dev->pdev->subsystem_device == 0x11bd)) {
 		if (*connector_type == DRM_MODE_CONNECTOR_VGA) {
@@ -1263,6 +1263,8 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
 union igp_info {
 	struct _ATOM_INTEGRATED_SYSTEM_INFO info;
 	struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
 };
 
 bool radeon_atombios_sideport_present(struct radeon_device *rdev)
@@ -1390,27 +1392,50 @@ static void radeon_atombios_get_igp_ss_overrides(struct radeon_device *rdev,
 	struct radeon_mode_info *mode_info = &rdev->mode_info;
 	int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 	u16 data_offset, size;
-	struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 *igp_info;
+	union igp_info *igp_info;
 	u8 frev, crev;
 	u16 percentage = 0, rate = 0;
 
 	/* get any igp specific overrides */
 	if (atom_parse_data_header(mode_info->atom_context, index, &size,
 				   &frev, &crev, &data_offset)) {
-		igp_info = (struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 *)
+		igp_info = (union igp_info *)
 			(mode_info->atom_context->bios + data_offset);
-		switch (id) {
-		case ASIC_INTERNAL_SS_ON_TMDS:
-			percentage = le16_to_cpu(igp_info->usDVISSPercentage);
-			rate = le16_to_cpu(igp_info->usDVISSpreadRateIn10Hz);
+		switch (crev) {
+		case 6:
+			switch (id) {
+			case ASIC_INTERNAL_SS_ON_TMDS:
+				percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
+				rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_HDMI:
+				percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
+				rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_LVDS:
+				percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
+				rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
+				break;
+			}
 			break;
-		case ASIC_INTERNAL_SS_ON_HDMI:
-			percentage = le16_to_cpu(igp_info->usHDMISSPercentage);
-			rate = le16_to_cpu(igp_info->usHDMISSpreadRateIn10Hz);
+		case 7:
+			switch (id) {
+			case ASIC_INTERNAL_SS_ON_TMDS:
+				percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
+				rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_HDMI:
+				percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
+				rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
+				break;
+			case ASIC_INTERNAL_SS_ON_LVDS:
+				percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
+				rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
+				break;
+			}
 			break;
-		case ASIC_INTERNAL_SS_ON_LVDS:
-			percentage = le16_to_cpu(igp_info->usLvdsSSPercentage);
-			rate = le16_to_cpu(igp_info->usLvdsSSpreadRateIn10Hz);
+		default:
+			DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
 			break;
 		}
 		if (percentage)
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 98724fcb008..2a2cf0b88a2 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -30,57 +30,8 @@ static struct radeon_atpx_priv {
 	/* handle for device - and atpx */
 	acpi_handle dhandle;
 	acpi_handle atpx_handle;
-	acpi_handle atrm_handle;
 } radeon_atpx_priv;
 
-/* retrieve the ROM in 4k blocks */
-static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
-			    int offset, int len)
-{
-	acpi_status status;
-	union acpi_object atrm_arg_elements[2], *obj;
-	struct acpi_object_list atrm_arg;
-	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL};
-
-	atrm_arg.count = 2;
-	atrm_arg.pointer = &atrm_arg_elements[0];
-
-	atrm_arg_elements[0].type = ACPI_TYPE_INTEGER;
-	atrm_arg_elements[0].integer.value = offset;
-
-	atrm_arg_elements[1].type = ACPI_TYPE_INTEGER;
-	atrm_arg_elements[1].integer.value = len;
-
-	status = acpi_evaluate_object(atrm_handle, NULL, &atrm_arg, &buffer);
-	if (ACPI_FAILURE(status)) {
-		printk("failed to evaluate ATRM got %s\n", acpi_format_exception(status));
-		return -ENODEV;
-	}
-
-	obj = (union acpi_object *)buffer.pointer;
-	memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
-	len = obj->buffer.length;
-	kfree(buffer.pointer);
-	return len;
-}
-
-bool radeon_atrm_supported(struct pci_dev *pdev)
-{
-	/* get the discrete ROM only via ATRM */
-	if (!radeon_atpx_priv.atpx_detected)
-		return false;
-
-	if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev))
-		return false;
-	return true;
-}
-
-
-int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len)
-{
-	return radeon_atrm_call(radeon_atpx_priv.atrm_handle, bios, offset, len);
-}
-
 static int radeon_atpx_get_version(acpi_handle handle)
 {
 	acpi_status status;
@@ -198,7 +149,7 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id,
 
 static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
 {
-	acpi_handle dhandle, atpx_handle, atrm_handle;
+	acpi_handle dhandle, atpx_handle;
 	acpi_status status;
 
 	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
@@ -209,13 +160,8 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
 	if (ACPI_FAILURE(status))
 		return false;
 
-	status = acpi_get_handle(dhandle, "ATRM", &atrm_handle);
-	if (ACPI_FAILURE(status))
-		return false;
-
 	radeon_atpx_priv.dhandle = dhandle;
 	radeon_atpx_priv.atpx_handle = atpx_handle;
-	radeon_atpx_priv.atrm_handle = atrm_handle;
 	return true;
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index 501f4881e5a..d306cc8fdea 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -32,6 +32,7 @@
 
 #include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
+#include <linux/acpi.h>
 /*
  * BIOS.
  */
@@ -98,16 +99,81 @@ static bool radeon_read_bios(struct radeon_device *rdev)
 	return true;
 }
 
+#ifdef CONFIG_ACPI
 /* ATRM is used to get the BIOS on the discrete cards in
  * dual-gpu systems.
  */
+/* retrieve the ROM in 4k blocks */
+#define ATRM_BIOS_PAGE 4096
+/**
+ * radeon_atrm_call - fetch a chunk of the vbios
+ *
+ * @atrm_handle: acpi ATRM handle
+ * @bios: vbios image pointer
+ * @offset: offset of vbios image data to fetch
+ * @len: length of vbios image data to fetch
+ *
+ * Executes ATRM to fetch a chunk of the discrete
+ * vbios image on PX systems (all asics).
+ * Returns the length of the buffer fetched.
+ */
+static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
+			    int offset, int len)
+{
+	acpi_status status;
+	union acpi_object atrm_arg_elements[2], *obj;
+	struct acpi_object_list atrm_arg;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL};
+
+	atrm_arg.count = 2;
+	atrm_arg.pointer = &atrm_arg_elements[0];
+
+	atrm_arg_elements[0].type = ACPI_TYPE_INTEGER;
+	atrm_arg_elements[0].integer.value = offset;
+
+	atrm_arg_elements[1].type = ACPI_TYPE_INTEGER;
+	atrm_arg_elements[1].integer.value = len;
+
+	status = acpi_evaluate_object(atrm_handle, NULL, &atrm_arg, &buffer);
+	if (ACPI_FAILURE(status)) {
+		printk("failed to evaluate ATRM got %s\n", acpi_format_exception(status));
+		return -ENODEV;
+	}
+
+	obj = (union acpi_object *)buffer.pointer;
+	memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
+	len = obj->buffer.length;
+	kfree(buffer.pointer);
+	return len;
+}
+
 static bool radeon_atrm_get_bios(struct radeon_device *rdev)
 {
 	int ret;
 	int size = 256 * 1024;
 	int i;
+	struct pci_dev *pdev = NULL;
+	acpi_handle dhandle, atrm_handle;
+	acpi_status status;
+	bool found = false;
+
+	/* ATRM is for the discrete card only */
+	if (rdev->flags & RADEON_IS_IGP)
+		return false;
+
+	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
+		dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+		if (!dhandle)
+			continue;
+
+		status = acpi_get_handle(dhandle, "ATRM", &atrm_handle);
+		if (!ACPI_FAILURE(status)) {
+			found = true;
+			break;
+		}
+	}
 
-	if (!radeon_atrm_supported(rdev->pdev))
+	if (!found)
 		return false;
 
 	rdev->bios = kmalloc(size, GFP_KERNEL);
@@ -117,9 +183,10 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
 	}
 
 	for (i = 0; i < size / ATRM_BIOS_PAGE; i++) {
-		ret = radeon_atrm_get_bios_chunk(rdev->bios,
-						 (i * ATRM_BIOS_PAGE),
-						 ATRM_BIOS_PAGE);
+		ret = radeon_atrm_call(atrm_handle,
+				       rdev->bios,
+				       (i * ATRM_BIOS_PAGE),
+				       ATRM_BIOS_PAGE);
 		if (ret < ATRM_BIOS_PAGE)
 			break;
 	}
@@ -130,6 +197,12 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
 	}
 	return true;
 }
+#else
+static inline bool radeon_atrm_get_bios(struct radeon_device *rdev)
+{
+	return false;
+}
+#endif
 
 static bool ni_read_disabled_bios(struct radeon_device *rdev)
 {
@@ -476,6 +549,61 @@ static bool radeon_read_disabled_bios(struct radeon_device *rdev)
 		return legacy_read_disabled_bios(rdev);
 }
 
+#ifdef CONFIG_ACPI
+static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
+{
+	bool ret = false;
+	struct acpi_table_header *hdr;
+	acpi_size tbl_size;
+	UEFI_ACPI_VFCT *vfct;
+	GOP_VBIOS_CONTENT *vbios;
+	VFCT_IMAGE_HEADER *vhdr;
+
+	if (!ACPI_SUCCESS(acpi_get_table_with_size("VFCT", 1, &hdr, &tbl_size)))
+		return false;
+	if (tbl_size < sizeof(UEFI_ACPI_VFCT)) {
+		DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n");
+		goto out_unmap;
+	}
+
+	vfct = (UEFI_ACPI_VFCT *)hdr;
+	if (vfct->VBIOSImageOffset + sizeof(VFCT_IMAGE_HEADER) > tbl_size) {
+		DRM_ERROR("ACPI VFCT table present but broken (too short #2)\n");
+		goto out_unmap;
+	}
+
+	vbios = (GOP_VBIOS_CONTENT *)((char *)hdr + vfct->VBIOSImageOffset);
+	vhdr = &vbios->VbiosHeader;
+	DRM_INFO("ACPI VFCT contains a BIOS for %02x:%02x.%d %04x:%04x, size %d\n",
+			vhdr->PCIBus, vhdr->PCIDevice, vhdr->PCIFunction,
+			vhdr->VendorID, vhdr->DeviceID, vhdr->ImageLength);
+
+	if (vhdr->PCIBus != rdev->pdev->bus->number ||
+	    vhdr->PCIDevice != PCI_SLOT(rdev->pdev->devfn) ||
+	    vhdr->PCIFunction != PCI_FUNC(rdev->pdev->devfn) ||
+	    vhdr->VendorID != rdev->pdev->vendor ||
+	    vhdr->DeviceID != rdev->pdev->device) {
+		DRM_INFO("ACPI VFCT table is not for this card\n");
+		goto out_unmap;
+	};
+
+	if (vfct->VBIOSImageOffset + sizeof(VFCT_IMAGE_HEADER) + vhdr->ImageLength > tbl_size) {
+		DRM_ERROR("ACPI VFCT image truncated\n");
+		goto out_unmap;
+	}
+
+	rdev->bios = kmemdup(&vbios->VbiosContent, vhdr->ImageLength, GFP_KERNEL);
+	ret = !!rdev->bios;
+
+out_unmap:
+	return ret;
+}
+#else
+static inline bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
+{
+	return false;
+}
+#endif
 
 bool radeon_get_bios(struct radeon_device *rdev)
 {
@@ -484,6 +612,8 @@ bool radeon_get_bios(struct radeon_device *rdev)
 
 	r = radeon_atrm_get_bios(rdev);
 	if (r == false)
+		r = radeon_acpi_vfct_bios(rdev);
+	if (r == false)
 		r = igp_read_bios_from_vram(rdev);
 	if (r == false)
 		r = radeon_read_bios(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 576f4f6919f..f75247d42ff 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -719,6 +719,34 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde
 	return i2c;
 }
 
+static struct radeon_i2c_bus_rec radeon_combios_get_i2c_info_from_table(struct radeon_device *rdev)
+{
+	struct drm_device *dev = rdev->ddev;
+	struct radeon_i2c_bus_rec i2c;
+	u16 offset;
+	u8 id, blocks, clk, data;
+	int i;
+
+	i2c.valid = false;
+
+	offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE);
+	if (offset) {
+		blocks = RBIOS8(offset + 2);
+		for (i = 0; i < blocks; i++) {
+			id = RBIOS8(offset + 3 + (i * 5) + 0);
+			if (id == 136) {
+				clk = RBIOS8(offset + 3 + (i * 5) + 3);
+				data = RBIOS8(offset + 3 + (i * 5) + 4);
+				/* gpiopad */
+				i2c = combios_setup_i2c_bus(rdev, DDC_MONID,
+							    (1 << clk), (1 << data));
+				break;
+			}
+		}
+	}
+	return i2c;
+}
+
 void radeon_combios_i2c_init(struct radeon_device *rdev)
 {
 	struct drm_device *dev = rdev->ddev;
@@ -755,30 +783,14 @@ void radeon_combios_i2c_init(struct radeon_device *rdev)
 	} else if (rdev->family == CHIP_RS300 ||
 		   rdev->family == CHIP_RS400 ||
 		   rdev->family == CHIP_RS480) {
-		u16 offset;
-		u8 id, blocks, clk, data;
-		int i;
-
 		/* 0x68 */
 		i2c = combios_setup_i2c_bus(rdev, DDC_CRT2, 0, 0);
 		rdev->i2c_bus[3] = radeon_i2c_create(dev, &i2c, "MONID");
 
-		offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE);
-		if (offset) {
-			blocks = RBIOS8(offset + 2);
-			for (i = 0; i < blocks; i++) {
-				id = RBIOS8(offset + 3 + (i * 5) + 0);
-				if (id == 136) {
-					clk = RBIOS8(offset + 3 + (i * 5) + 3);
-					data = RBIOS8(offset + 3 + (i * 5) + 4);
-					/* gpiopad */
-					i2c = combios_setup_i2c_bus(rdev, DDC_MONID,
-								    (1 << clk), (1 << data));
-					rdev->i2c_bus[4] = radeon_i2c_create(dev, &i2c, "GPIOPAD_MASK");
-					break;
-				}
-			}
-		}
+		/* gpiopad */
+		i2c = radeon_combios_get_i2c_info_from_table(rdev);
+		if (i2c.valid)
+			rdev->i2c_bus[4] = radeon_i2c_create(dev, &i2c, "GPIOPAD_MASK");
 	} else if ((rdev->family == CHIP_R200) ||
 		   (rdev->family >= CHIP_R300)) {
 		/* 0x68 */
@@ -2321,7 +2333,10 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
 			connector = (tmp >> 12) & 0xf;
 
 			ddc_type = (tmp >> 8) & 0xf;
-			ddc_i2c = combios_setup_i2c_bus(rdev, ddc_type, 0, 0);
+			if (ddc_type == 5)
+				ddc_i2c = radeon_combios_get_i2c_info_from_table(rdev);
+			else
+				ddc_i2c = combios_setup_i2c_bus(rdev, ddc_type, 0, 0);
 
 			switch (connector) {
 			case CONNECTOR_PROPRIETARY_LEGACY:
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 8a4c49ef0cc..b4a0db24f4d 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -278,6 +278,30 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 	return 0;
 }
 
+static void radeon_bo_vm_fence_va(struct radeon_cs_parser *parser,
+				  struct radeon_fence *fence)
+{
+	struct radeon_fpriv *fpriv = parser->filp->driver_priv;
+	struct radeon_vm *vm = &fpriv->vm;
+	struct radeon_bo_list *lobj;
+
+	if (parser->chunk_ib_idx == -1) {
+		return;
+	}
+	if ((parser->cs_flags & RADEON_CS_USE_VM) == 0) {
+		return;
+	}
+
+	list_for_each_entry(lobj, &parser->validated, tv.head) {
+		struct radeon_bo_va *bo_va;
+		struct radeon_bo *rbo = lobj->bo;
+
+		bo_va = radeon_bo_va(rbo, vm);
+		radeon_fence_unref(&bo_va->fence);
+		bo_va->fence = radeon_fence_ref(fence);
+	}
+}
+
 /**
  * cs_parser_fini() - clean parser states
  * @parser:	parser structure holding parsing context.
@@ -290,11 +314,14 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
 {
 	unsigned i;
 
-	if (!error)
+	if (!error) {
+		/* fence all bo va before ttm_eu_fence_buffer_objects so bo are still reserved */
+		radeon_bo_vm_fence_va(parser, parser->ib.fence);
 		ttm_eu_fence_buffer_objects(&parser->validated,
 					    parser->ib.fence);
-	else
+	} else {
 		ttm_eu_backoff_reservation(&parser->validated);
+	}
 
 	if (parser->relocs != NULL) {
 		for (i = 0; i < parser->nrelocs; i++) {
@@ -388,7 +415,6 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
 
 	if (parser->chunk_ib_idx == -1)
 		return 0;
-
 	if ((parser->cs_flags & RADEON_CS_USE_VM) == 0)
 		return 0;
 
diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 711e95ad39b..8794744cdf1 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -67,7 +67,8 @@ static void radeon_hide_cursor(struct drm_crtc *crtc)
 
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(RADEON_MM_INDEX, EVERGREEN_CUR_CONTROL + radeon_crtc->crtc_offset);
-		WREG32(RADEON_MM_DATA, EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT));
+		WREG32(RADEON_MM_DATA, EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT) |
+		       EVERGREEN_CURSOR_URGENT_CONTROL(EVERGREEN_CURSOR_URGENT_1_2));
 	} else if (ASIC_IS_AVIVO(rdev)) {
 		WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset);
 		WREG32(RADEON_MM_DATA, (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT));
@@ -94,7 +95,8 @@ static void radeon_show_cursor(struct drm_crtc *crtc)
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(RADEON_MM_INDEX, EVERGREEN_CUR_CONTROL + radeon_crtc->crtc_offset);
 		WREG32(RADEON_MM_DATA, EVERGREEN_CURSOR_EN |
-		       EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT));
+		       EVERGREEN_CURSOR_MODE(EVERGREEN_CURSOR_24_8_PRE_MULT) |
+		       EVERGREEN_CURSOR_URGENT_CONTROL(EVERGREEN_CURSOR_URGENT_1_2));
 	} else if (ASIC_IS_AVIVO(rdev)) {
 		WREG32(RADEON_MM_INDEX, AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset);
 		WREG32(RADEON_MM_DATA, AVIVO_D1CURSOR_EN |
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 742af8244e8..7a3daebd732 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1009,6 +1009,7 @@ int radeon_device_init(struct radeon_device *rdev,
 	atomic_set(&rdev->ih.lock, 0);
 	mutex_init(&rdev->gem.mutex);
 	mutex_init(&rdev->pm.mutex);
+	mutex_init(&rdev->gpu_clock_mutex);
 	init_rwsem(&rdev->pm.mclk_lock);
 	init_rwsem(&rdev->exclusive_lock);
 	init_waitqueue_head(&rdev->irq.vblank_queue);
@@ -1050,7 +1051,7 @@ int radeon_device_init(struct radeon_device *rdev,
 	if (rdev->flags & RADEON_IS_AGP)
 		rdev->need_dma32 = true;
 	if ((rdev->flags & RADEON_IS_PCI) &&
-	    (rdev->family < CHIP_RS400))
+	    (rdev->family <= CHIP_RS740))
 		rdev->need_dma32 = true;
 
 	dma_bits = rdev->need_dma32 ? 32 : 40;
@@ -1345,12 +1346,15 @@ retry:
 		for (i = 0; i < RADEON_NUM_RINGS; ++i) {
 			radeon_ring_restore(rdev, &rdev->ring[i],
 					    ring_sizes[i], ring_data[i]);
+			ring_sizes[i] = 0;
+			ring_data[i] = NULL;
 		}
 
 		r = radeon_ib_ring_tests(rdev);
 		if (r) {
 			dev_err(rdev->dev, "ib ring test failed (%d).\n", r);
 			if (saved) {
+				saved = false;
 				radeon_suspend(rdev);
 				goto retry;
 			}
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index dcea6f01ae4..8c593ea82c4 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -59,9 +59,14 @@
  *   2.15.0 - add max_pipes query
  *   2.16.0 - fix evergreen 2D tiled surface calculation
  *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
+ *   2.18.0 - r600-eg: allow "invalid" DB formats
+ *   2.19.0 - r600-eg: MSAA textures
+ *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
+ *   2.21.0 - r600-r700: FMASK and CMASK
+ *   2.22.0 - r600 only: RESOLVE_BOX allowed
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	17
+#define KMS_DRIVER_MINOR	22
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 7b737b9339a..2a59375dbe5 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -131,7 +131,7 @@ int radeon_fence_emit(struct radeon_device *rdev,
  */
 void radeon_fence_process(struct radeon_device *rdev, int ring)
 {
-	uint64_t seq, last_seq;
+	uint64_t seq, last_seq, last_emitted;
 	unsigned count_loop = 0;
 	bool wake = false;
 
@@ -158,13 +158,15 @@ void radeon_fence_process(struct radeon_device *rdev, int ring)
 	 */
 	last_seq = atomic64_read(&rdev->fence_drv[ring].last_seq);
 	do {
+		last_emitted = rdev->fence_drv[ring].sync_seq[ring];
 		seq = radeon_fence_read(rdev, ring);
 		seq |= last_seq & 0xffffffff00000000LL;
 		if (seq < last_seq) {
-			seq += 0x100000000LL;
+			seq &= 0xffffffff;
+			seq |= last_emitted & 0xffffffff00000000LL;
 		}
 
-		if (seq == last_seq) {
+		if (seq <= last_seq || seq > last_emitted) {
 			break;
 		}
 		/* If we loop over we don't want to return without
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index b3720054614..bb3b7fe05cc 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -814,7 +814,7 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
 		return -EINVAL;
 	}
 
-	if (bo_va->valid)
+	if (bo_va->valid && mem)
 		return 0;
 
 	ngpu_pages = radeon_bo_ngpu_pages(bo);
@@ -859,11 +859,27 @@ int radeon_vm_bo_rmv(struct radeon_device *rdev,
 		     struct radeon_bo *bo)
 {
 	struct radeon_bo_va *bo_va;
+	int r;
 
 	bo_va = radeon_bo_va(bo, vm);
 	if (bo_va == NULL)
 		return 0;
 
+	/* wait for va use to end */
+	while (bo_va->fence) {
+		r = radeon_fence_wait(bo_va->fence, false);
+		if (r) {
+			DRM_ERROR("error while waiting for fence: %d\n", r);
+		}
+		if (r == -EDEADLK) {
+			r = radeon_gpu_reset(rdev);
+			if (!r)
+				continue;
+		}
+		break;
+	}
+	radeon_fence_unref(&bo_va->fence);
+
 	mutex_lock(&rdev->vm_manager.lock);
 	mutex_lock(&vm->mutex);
 	radeon_vm_bo_update_pte(rdev, vm, bo, NULL);
@@ -934,7 +950,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
 }
 
 /**
- * radeon_vm_init - tear down a vm instance
+ * radeon_vm_fini - tear down a vm instance
  *
  * @rdev: radeon_device pointer
  * @vm: requested vm
@@ -952,12 +968,15 @@ void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm)
 	radeon_vm_unbind_locked(rdev, vm);
 	mutex_unlock(&rdev->vm_manager.lock);
 
-	/* remove all bo */
+	/* remove all bo at this point non are busy any more because unbind
+	 * waited for the last vm fence to signal
+	 */
 	r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
 	if (!r) {
 		bo_va = radeon_bo_va(rdev->ring_tmp_bo.bo, vm);
 		list_del_init(&bo_va->bo_list);
 		list_del_init(&bo_va->vm_list);
+		radeon_fence_unref(&bo_va->fence);
 		radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
 		kfree(bo_va);
 	}
@@ -969,6 +988,7 @@ void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm)
 		r = radeon_bo_reserve(bo_va->bo, false);
 		if (!r) {
 			list_del_init(&bo_va->bo_list);
+			radeon_fence_unref(&bo_va->fence);
 			radeon_bo_unreserve(bo_va->bo);
 			kfree(bo_va);
 		}
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 84d04524573..1b57b0058ad 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -134,25 +134,16 @@ void radeon_gem_object_close(struct drm_gem_object *obj,
 	struct radeon_device *rdev = rbo->rdev;
 	struct radeon_fpriv *fpriv = file_priv->driver_priv;
 	struct radeon_vm *vm = &fpriv->vm;
-	struct radeon_bo_va *bo_va, *tmp;
 
 	if (rdev->family < CHIP_CAYMAN) {
 		return;
 	}
 
 	if (radeon_bo_reserve(rbo, false)) {
+		dev_err(rdev->dev, "leaking bo va because we fail to reserve bo\n");
 		return;
 	}
-	list_for_each_entry_safe(bo_va, tmp, &rbo->va, bo_list) {
-		if (bo_va->vm == vm) {
-			/* remove from this vm address space */
-			mutex_lock(&vm->mutex);
-			list_del(&bo_va->vm_list);
-			mutex_unlock(&vm->mutex);
-			list_del(&bo_va->bo_list);
-			kfree(bo_va);
-		}
-	}
+	radeon_vm_bo_rmv(rdev, vm, rbo);
 	radeon_bo_unreserve(rbo);
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index afaa1727abd..50b596ec7b7 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -277,7 +277,7 @@ void radeon_irq_kms_fini(struct radeon_device *rdev)
 		if (rdev->msi_enabled)
 			pci_disable_msi(rdev->pdev);
 	}
-	flush_work_sync(&rdev->hotplug_work);
+	flush_work(&rdev->hotplug_work);
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 1d73f16b5d9..414b4acf694 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -29,6 +29,7 @@
 #include "drm_sarea.h"
 #include "radeon.h"
 #include "radeon_drm.h"
+#include "radeon_asic.h"
 
 #include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
@@ -167,17 +168,39 @@ static void radeon_set_filp_rights(struct drm_device *dev,
 int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 {
 	struct radeon_device *rdev = dev->dev_private;
-	struct drm_radeon_info *info;
+	struct drm_radeon_info *info = data;
 	struct radeon_mode_info *minfo = &rdev->mode_info;
-	uint32_t *value_ptr;
-	uint32_t value;
+	uint32_t value, *value_ptr;
+	uint64_t value64, *value_ptr64;
 	struct drm_crtc *crtc;
 	int i, found;
 
-	info = data;
+	/* TIMESTAMP is a 64-bit value, needs special handling. */
+	if (info->request == RADEON_INFO_TIMESTAMP) {
+		if (rdev->family >= CHIP_R600) {
+			value_ptr64 = (uint64_t*)((unsigned long)info->value);
+			if (rdev->family >= CHIP_TAHITI) {
+				value64 = si_get_gpu_clock(rdev);
+			} else {
+				value64 = r600_get_gpu_clock(rdev);
+			}
+
+			if (DRM_COPY_TO_USER(value_ptr64, &value64, sizeof(value64))) {
+				DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
+				return -EFAULT;
+			}
+			return 0;
+		} else {
+			DRM_DEBUG_KMS("timestamp is r6xx+ only!\n");
+			return -EINVAL;
+		}
+	}
+
 	value_ptr = (uint32_t *)((unsigned long)info->value);
-	if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value)))
+	if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value))) {
+		DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 		return -EFAULT;
+	}
 
 	switch (info->request) {
 	case RADEON_INFO_DEVICE_ID:
@@ -337,7 +360,7 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		return -EINVAL;
 	}
 	if (DRM_COPY_TO_USER(value_ptr, &value, sizeof(uint32_t))) {
-		DRM_ERROR("copy_to_user\n");
+		DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
 		return -EFAULT;
 	}
 	return 0;
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index d5fd615897e..94b4a1c1289 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -1025,9 +1025,11 @@ static int radeon_crtc_mode_set(struct drm_crtc *crtc,
 
 static void radeon_crtc_prepare(struct drm_crtc *crtc)
 {
+	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct drm_device *dev = crtc->dev;
 	struct drm_crtc *crtci;
 
+	radeon_crtc->in_mode_set = true;
 	/*
 	* The hardware wedges sometimes if you reconfigure one CRTC
 	* whilst another is running (see fdo bug #24611).
@@ -1038,6 +1040,7 @@ static void radeon_crtc_prepare(struct drm_crtc *crtc)
 
 static void radeon_crtc_commit(struct drm_crtc *crtc)
 {
+	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct drm_device *dev = crtc->dev;
 	struct drm_crtc *crtci;
 
@@ -1048,6 +1051,7 @@ static void radeon_crtc_commit(struct drm_crtc *crtc)
 		if (crtci->enabled)
 			radeon_crtc_dpms(crtci, DRM_MODE_DPMS_ON);
 	}
+	radeon_crtc->in_mode_set = false;
 }
 
 static const struct drm_crtc_helper_funcs legacy_helper_funcs = {
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index f380d59c576..d56978949f3 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -275,6 +275,7 @@ struct radeon_crtc {
 	u16 lut_r[256], lut_g[256], lut_b[256];
 	bool enabled;
 	bool can_tile;
+	bool in_mode_set;
 	uint32_t crtc_offset;
 	struct drm_gem_object *cursor_bo;
 	uint64_t cursor_addr;
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 1f1a4c803c1..9024e722283 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -52,11 +52,7 @@ void radeon_bo_clear_va(struct radeon_bo *bo)
 
 	list_for_each_entry_safe(bo_va, tmp, &bo->va, bo_list) {
 		/* remove from all vm address space */
-		mutex_lock(&bo_va->vm->mutex);
-		list_del(&bo_va->vm_list);
-		mutex_unlock(&bo_va->vm->mutex);
-		list_del(&bo_va->bo_list);
-		kfree(bo_va);
+		radeon_vm_bo_rmv(bo->rdev, bo_va->vm, bo);
 	}
 }
 
@@ -136,6 +132,7 @@ int radeon_bo_create(struct radeon_device *rdev,
 	acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size,
 				       sizeof(struct radeon_bo));
 
+retry:
 	bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
 	if (bo == NULL)
 		return -ENOMEM;
@@ -149,8 +146,6 @@ int radeon_bo_create(struct radeon_device *rdev,
 	bo->surface_reg = -1;
 	INIT_LIST_HEAD(&bo->list);
 	INIT_LIST_HEAD(&bo->va);
-
-retry:
 	radeon_ttm_placement_from_domain(bo, domain);
 	/* Kernel allocation are uninterruptible */
 	down_read(&rdev->pm.mclk_lock);
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index ec79b375043..43c431a2686 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -706,6 +706,7 @@ int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsig
 	if (radeon_debugfs_ring_init(rdev, ring)) {
 		DRM_ERROR("Failed to register debugfs file for rings !\n");
 	}
+	radeon_ring_lockup_update(ring);
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/radeon/reg_srcs/r600 b/drivers/gpu/drm/radeon/reg_srcs/r600
index 5e659b034d9..20bfbda7b3f 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/r600
+++ b/drivers/gpu/drm/radeon/reg_srcs/r600
@@ -744,15 +744,6 @@ r600 0x9400
 0x00028C38 CB_CLRCMP_DST
 0x00028C3C CB_CLRCMP_MSK
 0x00028C34 CB_CLRCMP_SRC
-0x00028100 CB_COLOR0_MASK
-0x00028104 CB_COLOR1_MASK
-0x00028108 CB_COLOR2_MASK
-0x0002810C CB_COLOR3_MASK
-0x00028110 CB_COLOR4_MASK
-0x00028114 CB_COLOR5_MASK
-0x00028118 CB_COLOR6_MASK
-0x0002811C CB_COLOR7_MASK
-0x00028808 CB_COLOR_CONTROL
 0x0002842C CB_FOG_BLUE
 0x00028428 CB_FOG_GREEN
 0x00028424 CB_FOG_RED
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index a12fbcc8ccb..aa8ef491ef3 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -281,12 +281,8 @@ int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
 
 void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save)
 {
-	save->d1vga_control = RREG32(R_000330_D1VGA_CONTROL);
-	save->d2vga_control = RREG32(R_000338_D2VGA_CONTROL);
 	save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL);
 	save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL);
-	save->d1crtc_control = RREG32(R_006080_D1CRTC_CONTROL);
-	save->d2crtc_control = RREG32(R_006880_D2CRTC_CONTROL);
 
 	/* Stop all video */
 	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
@@ -311,15 +307,6 @@ void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save)
 	/* Unlock host access */
 	WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control);
 	mdelay(1);
-	/* Restore video state */
-	WREG32(R_000330_D1VGA_CONTROL, save->d1vga_control);
-	WREG32(R_000338_D2VGA_CONTROL, save->d2vga_control);
-	WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 1);
-	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 1);
-	WREG32(R_006080_D1CRTC_CONTROL, save->d1crtc_control);
-	WREG32(R_006880_D2CRTC_CONTROL, save->d2crtc_control);
-	WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 0);
-	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
 	WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control);
 }
 
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index c053f819377..0139e227e3c 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1639,11 +1639,19 @@ static void si_gpu_init(struct radeon_device *rdev)
 		/* XXX what about 12? */
 		rdev->config.si.tile_config |= (3 << 0);
 		break;
-	}
-	if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
-		rdev->config.si.tile_config |= 1 << 4;
-	else
+	}	
+	switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
+	case 0: /* four banks */
 		rdev->config.si.tile_config |= 0 << 4;
+		break;
+	case 1: /* eight banks */
+		rdev->config.si.tile_config |= 1 << 4;
+		break;
+	case 2: /* sixteen banks */
+	default:
+		rdev->config.si.tile_config |= 2 << 4;
+		break;
+	}
 	rdev->config.si.tile_config |=
 		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
 	rdev->config.si.tile_config |=
@@ -3960,3 +3968,22 @@ void si_fini(struct radeon_device *rdev)
 	rdev->bios = NULL;
 }
 
+/**
+ * si_get_gpu_clock - return GPU clock counter snapshot
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Fetches a GPU clock counter snapshot (SI).
+ * Returns the 64 bit clock counter snapshot.
+ */
+uint64_t si_get_gpu_clock(struct radeon_device *rdev)
+{
+	uint64_t clock;
+
+	mutex_lock(&rdev->gpu_clock_mutex);
+	WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);
+	clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |
+	        ((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
+	mutex_unlock(&rdev->gpu_clock_mutex);
+	return clock;
+}
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 7869089e876..ef4815c27b1 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -698,6 +698,9 @@
 #define RLC_UCODE_ADDR                                    0xC32C
 #define RLC_UCODE_DATA                                    0xC330
 
+#define RLC_GPU_CLOCK_COUNT_LSB                           0xC338
+#define RLC_GPU_CLOCK_COUNT_MSB                           0xC33C
+#define RLC_CAPTURE_GPU_CLOCK_COUNT                       0xC340
 #define RLC_MC_CNTL                                       0xC344
 #define RLC_UCODE_CNTL                                    0xC348
 
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index d31d4cca9a4..c5a164337bd 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -43,6 +43,9 @@ static const struct file_operations savage_driver_fops = {
 	.mmap = drm_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index 7f119870147..867dc03000e 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -74,6 +74,9 @@ static const struct file_operations sis_driver_fops = {
 	.mmap = drm_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/tdfx/tdfx_drv.c b/drivers/gpu/drm/tdfx/tdfx_drv.c
index 90f6b13acfa..a7f4d6bd133 100644
--- a/drivers/gpu/drm/tdfx/tdfx_drv.c
+++ b/drivers/gpu/drm/tdfx/tdfx_drv.c
@@ -49,6 +49,9 @@ static const struct file_operations tdfx_driver_fops = {
 	.mmap = drm_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/udl/Kconfig b/drivers/gpu/drm/udl/Kconfig
index 0b5e096d39a..56e0bf31d42 100644
--- a/drivers/gpu/drm/udl/Kconfig
+++ b/drivers/gpu/drm/udl/Kconfig
@@ -1,6 +1,7 @@
 config DRM_UDL
 	tristate "DisplayLink"
 	depends on DRM && EXPERIMENTAL
+	depends on USB_ARCH_HAS_HCD
 	select DRM_USB
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index ba055e9ca00..8d9dc44f1f9 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -69,6 +69,13 @@ static int udl_get_modes(struct drm_connector *connector)
 static int udl_mode_valid(struct drm_connector *connector,
 			  struct drm_display_mode *mode)
 {
+	struct udl_device *udl = connector->dev->dev_private;
+	if (!udl->sku_pixel_limit)
+		return 0;
+
+	if (mode->vdisplay * mode->hdisplay > udl->sku_pixel_limit)
+		return MODE_VIRTUAL_Y;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 6e52069894b..9f84128505b 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -66,6 +66,9 @@ static const struct file_operations udl_driver_fops = {
 	.unlocked_ioctl	= drm_ioctl,
 	.release = drm_release,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
index 7bd65bdd15a..291ecc14558 100644
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ b/drivers/gpu/drm/udl/udl_gem.c
@@ -308,7 +308,7 @@ struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev,
 	/* need to attach */
 	attach = dma_buf_attach(dma_buf, dev->dev);
 	if (IS_ERR(attach))
-		return ERR_PTR(PTR_ERR(attach));
+		return ERR_CAST(attach);
 
 	sg = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
 	if (IS_ERR(sg)) {
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index f5dd89e891d..9159d48d1df 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -354,8 +354,7 @@ static int udl_crtc_mode_set(struct drm_crtc *crtc,
 
 static void udl_crtc_disable(struct drm_crtc *crtc)
 {
-
-
+	udl_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 }
 
 static void udl_crtc_destroy(struct drm_crtc *crtc)
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index e927b4c052f..af1b914b17e 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -65,6 +65,9 @@ static const struct file_operations via_driver_fops = {
 	.mmap = drm_mmap,
 	.poll = drm_poll,
 	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/drivers/gpu/drm/vmwgfx/Kconfig b/drivers/gpu/drm/vmwgfx/Kconfig
index 794ff67c570..b71bcd0bfbb 100644
--- a/drivers/gpu/drm/vmwgfx/Kconfig
+++ b/drivers/gpu/drm/vmwgfx/Kconfig
@@ -12,3 +12,11 @@ config DRM_VMWGFX
 	  This is a KMS enabled DRM driver for the VMware SVGA2
 	  virtual hardware.
 	  The compiled module will be called "vmwgfx.ko".
+
+config DRM_VMWGFX_FBCON
+	depends on DRM_VMWGFX
+	bool "Enable framebuffer console under vmwgfx by default"
+	help
+	   Choose this option if you are shipping a new vmwgfx
+	   userspace driver that supports using the kernel driver.
+
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 4d9edead01a..ba2c35dbf10 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -182,8 +182,9 @@ static struct pci_device_id vmw_pci_id_list[] = {
 	{0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 	{0, 0, 0}
 };
+MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
 
-static int enable_fbdev;
+static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
 
 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 static void vmw_master_init(struct vmw_master *);
@@ -1154,6 +1155,11 @@ static struct drm_driver driver = {
 	.open = vmw_driver_open,
 	.preclose = vmw_preclose,
 	.postclose = vmw_postclose,
+
+	.dumb_create = vmw_dumb_create,
+	.dumb_map_offset = vmw_dumb_map_offset,
+	.dumb_destroy = vmw_dumb_destroy,
+
 	.fops = &vmwgfx_driver_fops,
 	.name = VMWGFX_DRIVER_NAME,
 	.desc = VMWGFX_DRIVER_DESC,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index d0f2c079ee2..29c984ff7f2 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -645,6 +645,16 @@ int vmw_kms_readback(struct vmw_private *dev_priv,
 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 				struct drm_file *file_priv);
 
+int vmw_dumb_create(struct drm_file *file_priv,
+		    struct drm_device *dev,
+		    struct drm_mode_create_dumb *args);
+
+int vmw_dumb_map_offset(struct drm_file *file_priv,
+			struct drm_device *dev, uint32_t handle,
+			uint64_t *offset);
+int vmw_dumb_destroy(struct drm_file *file_priv,
+		     struct drm_device *dev,
+		     uint32_t handle);
 /**
  * Overlay control - vmwgfx_overlay.c
  */
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index 3c447bf317c..a32f2e96dd0 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -594,7 +594,7 @@ int vmw_fb_off(struct vmw_private *vmw_priv)
 	par->dirty.active = false;
 	spin_unlock_irqrestore(&par->dirty.lock, flags);
 
-	flush_delayed_work_sync(&info->deferred_work);
+	flush_delayed_work(&info->deferred_work);
 
 	par->bo_ptr = NULL;
 	ttm_bo_kunmap(&par->map);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index f2fb8f15e2f..7e0743358df 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1018,7 +1018,7 @@ int vmw_event_fence_action_create(struct drm_file *file_priv,
 	}
 
 
-	event = kzalloc(sizeof(event->event), GFP_KERNEL);
+	event = kzalloc(sizeof(*event), GFP_KERNEL);
 	if (unlikely(event == NULL)) {
 		DRM_ERROR("Failed to allocate an event.\n");
 		ret = -ENOMEM;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 6b0078ffa76..c50724bd30f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1688,15 +1688,19 @@ int vmw_du_page_flip(struct drm_crtc *crtc,
 	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 	struct drm_framebuffer *old_fb = crtc->fb;
 	struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
-	struct drm_file *file_priv = event->base.file_priv;
+	struct drm_file *file_priv ;
 	struct vmw_fence_obj *fence = NULL;
 	struct drm_clip_rect clips;
 	int ret;
 
+	if (event == NULL)
+		return -EINVAL;
+
 	/* require ScreenObject support for page flipping */
 	if (!dev_priv->sou_priv)
 		return -ENOSYS;
 
+	file_priv = event->base.file_priv;
 	if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
 		return -EINVAL;
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 22bf9a21ec7..2c6ffe0e2c0 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -1917,3 +1917,76 @@ err_ref:
 	vmw_resource_unreference(&res);
 	return ret;
 }
+
+
+int vmw_dumb_create(struct drm_file *file_priv,
+		    struct drm_device *dev,
+		    struct drm_mode_create_dumb *args)
+{
+	struct vmw_private *dev_priv = vmw_priv(dev);
+	struct vmw_master *vmaster = vmw_master(file_priv->master);
+	struct vmw_user_dma_buffer *vmw_user_bo;
+	struct ttm_buffer_object *tmp;
+	int ret;
+
+	args->pitch = args->width * ((args->bpp + 7) / 8);
+	args->size = args->pitch * args->height;
+
+	vmw_user_bo = kzalloc(sizeof(*vmw_user_bo), GFP_KERNEL);
+	if (vmw_user_bo == NULL)
+		return -ENOMEM;
+
+	ret = ttm_read_lock(&vmaster->lock, true);
+	if (ret != 0) {
+		kfree(vmw_user_bo);
+		return ret;
+	}
+
+	ret = vmw_dmabuf_init(dev_priv, &vmw_user_bo->dma, args->size,
+			      &vmw_vram_sys_placement, true,
+			      &vmw_user_dmabuf_destroy);
+	if (ret != 0)
+		goto out_no_dmabuf;
+
+	tmp = ttm_bo_reference(&vmw_user_bo->dma.base);
+	ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile,
+				   &vmw_user_bo->base,
+				   false,
+				   ttm_buffer_type,
+				   &vmw_user_dmabuf_release, NULL);
+	if (unlikely(ret != 0))
+		goto out_no_base_object;
+
+	args->handle = vmw_user_bo->base.hash.key;
+
+out_no_base_object:
+	ttm_bo_unref(&tmp);
+out_no_dmabuf:
+	ttm_read_unlock(&vmaster->lock);
+	return ret;
+}
+
+int vmw_dumb_map_offset(struct drm_file *file_priv,
+			struct drm_device *dev, uint32_t handle,
+			uint64_t *offset)
+{
+	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+	struct vmw_dma_buffer *out_buf;
+	int ret;
+
+	ret = vmw_user_dmabuf_lookup(tfile, handle, &out_buf);
+	if (ret != 0)
+		return -EINVAL;
+
+	*offset = out_buf->base.addr_space_offset;
+	vmw_dmabuf_unreference(&out_buf);
+	return 0;
+}
+
+int vmw_dumb_destroy(struct drm_file *file_priv,
+		     struct drm_device *dev,
+		     uint32_t handle)
+{
+	return ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile,
+					 handle, TTM_REF_USAGE);
+}
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
index 5b3c7d135dc..e25cf31faab 100644
--- a/drivers/gpu/vga/vga_switcheroo.c
+++ b/drivers/gpu/vga/vga_switcheroo.c
@@ -70,27 +70,12 @@ static struct vgasr_priv vgasr_priv = {
 	.clients = LIST_HEAD_INIT(vgasr_priv.clients),
 };
 
-int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler)
-{
-	mutex_lock(&vgasr_mutex);
-	if (vgasr_priv.handler) {
-		mutex_unlock(&vgasr_mutex);
-		return -EINVAL;
-	}
-
-	vgasr_priv.handler = handler;
-	mutex_unlock(&vgasr_mutex);
-	return 0;
-}
-EXPORT_SYMBOL(vga_switcheroo_register_handler);
-
-void vga_switcheroo_unregister_handler(void)
+static bool vga_switcheroo_ready(void)
 {
-	mutex_lock(&vgasr_mutex);
-	vgasr_priv.handler = NULL;
-	mutex_unlock(&vgasr_mutex);
+	/* we're ready if we get two clients + handler */
+	return !vgasr_priv.active &&
+	       vgasr_priv.registered_clients == 2 && vgasr_priv.handler;
 }
-EXPORT_SYMBOL(vga_switcheroo_unregister_handler);
 
 static void vga_switcheroo_enable(void)
 {
@@ -98,7 +83,8 @@ static void vga_switcheroo_enable(void)
 	struct vga_switcheroo_client *client;
 
 	/* call the handler to init */
-	vgasr_priv.handler->init();
+	if (vgasr_priv.handler->init)
+		vgasr_priv.handler->init();
 
 	list_for_each_entry(client, &vgasr_priv.clients, list) {
 		if (client->id != -1)
@@ -113,6 +99,37 @@ static void vga_switcheroo_enable(void)
 	vgasr_priv.active = true;
 }
 
+int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler)
+{
+	mutex_lock(&vgasr_mutex);
+	if (vgasr_priv.handler) {
+		mutex_unlock(&vgasr_mutex);
+		return -EINVAL;
+	}
+
+	vgasr_priv.handler = handler;
+	if (vga_switcheroo_ready()) {
+		printk(KERN_INFO "vga_switcheroo: enabled\n");
+		vga_switcheroo_enable();
+	}
+	mutex_unlock(&vgasr_mutex);
+	return 0;
+}
+EXPORT_SYMBOL(vga_switcheroo_register_handler);
+
+void vga_switcheroo_unregister_handler(void)
+{
+	mutex_lock(&vgasr_mutex);
+	vgasr_priv.handler = NULL;
+	if (vgasr_priv.active) {
+		pr_info("vga_switcheroo: disabled\n");
+		vga_switcheroo_debugfs_fini(&vgasr_priv);
+		vgasr_priv.active = false;
+	}
+	mutex_unlock(&vgasr_mutex);
+}
+EXPORT_SYMBOL(vga_switcheroo_unregister_handler);
+
 static int register_client(struct pci_dev *pdev,
 			   const struct vga_switcheroo_client_ops *ops,
 			   int id, bool active)
@@ -134,9 +151,7 @@ static int register_client(struct pci_dev *pdev,
 	if (client_is_vga(client))
 		vgasr_priv.registered_clients++;
 
-	/* if we get two clients + handler */
-	if (!vgasr_priv.active &&
-	    vgasr_priv.registered_clients == 2 && vgasr_priv.handler) {
+	if (vga_switcheroo_ready()) {
 		printk(KERN_INFO "vga_switcheroo: enabled\n");
 		vga_switcheroo_enable();
 	}
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index 3df8fc0ec01..e893f6e1937 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -141,7 +141,11 @@ EXPORT_SYMBOL_GPL(vga_default_device);
 
 void vga_set_default_device(struct pci_dev *pdev)
 {
-	vga_default = pdev;
+	if (vga_default == pdev)
+		return;
+
+	pci_dev_put(vga_default);
+	vga_default = pci_dev_get(pdev);
 }
 #endif
 
@@ -577,7 +581,7 @@ static bool vga_arbiter_add_pci_device(struct pci_dev *pdev)
 #ifndef __ARCH_HAS_VGA_DEFAULT_DEVICE
 	if (vga_default == NULL &&
 	    ((vgadev->owns & VGA_RSRC_LEGACY_MASK) == VGA_RSRC_LEGACY_MASK))
-		vga_default = pci_dev_get(pdev);
+		vga_set_default_device(pdev);
 #endif
 
 	vga_arbiter_check_bridge_sharing(vgadev);
@@ -613,10 +617,8 @@ static bool vga_arbiter_del_pci_device(struct pci_dev *pdev)
 	}
 
 #ifndef __ARCH_HAS_VGA_DEFAULT_DEVICE
-	if (vga_default == pdev) {
-		pci_dev_put(vga_default);
-		vga_default = NULL;
-	}
+	if (vga_default == pdev)
+		vga_set_default_device(NULL);
 #endif
 
 	if (vgadev->decodes & (VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM))
@@ -1066,7 +1068,6 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
 		}
 
 	} else if (strncmp(curr_pos, "target ", 7) == 0) {
-		struct pci_bus *pbus;
 		unsigned int domain, bus, devfn;
 		struct vga_device *vgadev;
 
@@ -1085,19 +1086,11 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
 			pr_debug("vgaarb: %s ==> %x:%x:%x.%x\n", curr_pos,
 				domain, bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
 
-			pbus = pci_find_bus(domain, bus);
-			pr_debug("vgaarb: pbus %p\n", pbus);
-			if (pbus == NULL) {
-				pr_err("vgaarb: invalid PCI domain and/or bus address %x:%x\n",
-					domain, bus);
-				ret_val = -ENODEV;
-				goto done;
-			}
-			pdev = pci_get_slot(pbus, devfn);
+			pdev = pci_get_domain_bus_and_slot(domain, bus, devfn);
 			pr_debug("vgaarb: pdev %p\n", pdev);
 			if (!pdev) {
-				pr_err("vgaarb: invalid PCI address %x:%x\n",
-					bus, devfn);
+				pr_err("vgaarb: invalid PCI address %x:%x:%x\n",
+					domain, bus, devfn);
 				ret_val = -ENODEV;
 				goto done;
 			}
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index fbf49503508..1630150ad2b 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -307,7 +307,6 @@ config HID_LOGITECH
 config HID_LOGITECH_DJ
 	tristate "Logitech Unifying receivers full support"
 	depends on HID_LOGITECH
-	default m
 	---help---
 	Say Y if you want support for Logitech Unifying receivers and devices.
 	Unifying receivers are capable of pairing up to 6 Logitech compliant
@@ -527,6 +526,14 @@ config HID_PICOLCD_LEDS
 	---help---
 	  Provide access to PicoLCD's GPO pins via leds class.
 
+config HID_PICOLCD_CIR
+	bool "CIR via RC class" if EXPERT
+	default !EXPERT
+	depends on HID_PICOLCD
+	depends on HID_PICOLCD=RC_CORE || RC_CORE=y
+	---help---
+	  Provide access to PicoLCD's CIR interface via remote control (LIRC).
+
 config HID_PRIMAX
 	tristate "Primax non-fully HID-compliant devices"
 	depends on USB_HID
@@ -534,6 +541,15 @@ config HID_PRIMAX
 	Support for Primax devices that are not fully compliant with the
 	HID standard.
 
+config HID_PS3REMOTE
+	tristate "Sony PS3 BD Remote Control"
+	depends on BT_HIDP
+	---help---
+	Support for the Sony PS3 Blue-ray Disk Remote Control and Logitech
+	Harmony Adapter for PS3, which connect over Bluetooth.
+
+	Support for the 6-axis controllers is provided by HID_SONY.
+
 config HID_ROCCAT
 	tristate "Roccat device support"
 	depends on USB_HID
@@ -561,7 +577,9 @@ config HID_SONY
 	tristate "Sony PS3 controller"
 	depends on USB_HID
 	---help---
-	Support for Sony PS3 controller.
+	Support for Sony PS3 6-axis controllers.
+
+	Support for the Sony PS3 BD Remote is provided by HID_PS3REMOTE.
 
 config HID_SPEEDLINK
 	tristate "Speedlink VAD Cezanne mouse support"
@@ -690,6 +708,20 @@ config HID_ZYDACRON
 	---help---
 	Support for Zydacron remote control.
 
+config HID_SENSOR_HUB
+	tristate "HID Sensors framework support"
+	depends on USB_HID
+	select MFD_CORE
+	default n
+	-- help---
+	  Support for HID Sensor framework. This creates a MFD instance
+	  for a sensor hub and identifies all the sensors connected to it.
+	  Each sensor is registered as a MFD cell, so that sensor specific
+	  processing can be done in a separate driver. Each sensor
+	  drivers can use the service provided by this driver to register
+	  for events and handle data streams. Each sensor driver can format
+	  data and present to user mode using input or IIO interface.
+
 endmenu
 
 endif # HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index f975485f88b..cef68ca859d 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -69,7 +69,28 @@ obj-$(CONFIG_HID_PRODIKEYS)	+= hid-prodikeys.o
 obj-$(CONFIG_HID_PANTHERLORD)	+= hid-pl.o
 obj-$(CONFIG_HID_PETALYNX)	+= hid-petalynx.o
 obj-$(CONFIG_HID_PICOLCD)	+= hid-picolcd.o
+hid-picolcd-y			+= hid-picolcd_core.o
+ifdef CONFIG_HID_PICOLCD_FB
+hid-picolcd-y			+= hid-picolcd_fb.o
+endif
+ifdef CONFIG_HID_PICOLCD_BACKLIGHT
+hid-picolcd-y			+= hid-picolcd_backlight.o
+endif
+ifdef CONFIG_HID_PICOLCD_LCD
+hid-picolcd-y			+= hid-picolcd_lcd.o
+endif
+ifdef CONFIG_HID_PICOLCD_LEDS
+hid-picolcd-y			+= hid-picolcd_leds.o
+endif
+ifdef CONFIG_HID_PICOLCD_CIR
+hid-picolcd-y			+= hid-picolcd_cir.o
+endif
+ifdef CONFIG_DEBUG_FS
+hid-picolcd-y			+= hid-picolcd_debugfs.o
+endif
+
 obj-$(CONFIG_HID_PRIMAX)	+= hid-primax.o
+obj-$(CONFIG_HID_PS3REMOTE)	+= hid-ps3remote.o
 obj-$(CONFIG_HID_ROCCAT)	+= hid-roccat.o hid-roccat-common.o \
 	hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
 	hid-roccat-koneplus.o hid-roccat-kovaplus.o hid-roccat-pyra.o \
@@ -91,6 +112,7 @@ obj-$(CONFIG_HID_ZYDACRON)	+= hid-zydacron.o
 obj-$(CONFIG_HID_WACOM)		+= hid-wacom.o
 obj-$(CONFIG_HID_WALTOP)	+= hid-waltop.o
 obj-$(CONFIG_HID_WIIMOTE)	+= hid-wiimote.o
+obj-$(CONFIG_HID_SENSOR_HUB)	+= hid-sensor-hub.o
 
 obj-$(CONFIG_USB_HID)		+= usbhid/
 obj-$(CONFIG_USB_MOUSE)		+= usbhid/
diff --git a/drivers/hid/hid-a4tech.c b/drivers/hid/hid-a4tech.c
index 902d1dfeb1b..0a239885e67 100644
--- a/drivers/hid/hid-a4tech.c
+++ b/drivers/hid/hid-a4tech.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 585344b6d33..06ebdbb6ea0 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
  */
 
diff --git a/drivers/hid/hid-aureal.c b/drivers/hid/hid-aureal.c
index ba64b041b8b..7968187ddf7 100644
--- a/drivers/hid/hid-aureal.c
+++ b/drivers/hid/hid-aureal.c
@@ -9,7 +9,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 #include <linux/device.h>
diff --git a/drivers/hid/hid-belkin.c b/drivers/hid/hid-belkin.c
index a1a765a5b08..a1a5a12c3a6 100644
--- a/drivers/hid/hid-belkin.c
+++ b/drivers/hid/hid-belkin.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-cherry.c b/drivers/hid/hid-cherry.c
index 888ece68a47..af034d3d925 100644
--- a/drivers/hid/hid-cherry.c
+++ b/drivers/hid/hid-cherry.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 60ea284407c..bd3971bf31b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -126,7 +126,7 @@ static int open_collection(struct hid_parser *parser, unsigned type)
 
 	if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 		hid_err(parser->device, "collection stack overflow\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	if (parser->device->maxcollection == parser->device->collection_size) {
@@ -134,7 +134,7 @@ static int open_collection(struct hid_parser *parser, unsigned type)
 				parser->device->collection_size * 2, GFP_KERNEL);
 		if (collection == NULL) {
 			hid_err(parser->device, "failed to reallocate collection array\n");
-			return -1;
+			return -ENOMEM;
 		}
 		memcpy(collection, parser->device->collection,
 			sizeof(struct hid_collection) *
@@ -170,7 +170,7 @@ static int close_collection(struct hid_parser *parser)
 {
 	if (!parser->collection_stack_ptr) {
 		hid_err(parser->device, "collection stack underflow\n");
-		return -1;
+		return -EINVAL;
 	}
 	parser->collection_stack_ptr--;
 	return 0;
@@ -374,7 +374,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 
 	case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 		parser->global.report_size = item_udata(item);
-		if (parser->global.report_size > 96) {
+		if (parser->global.report_size > 128) {
 			hid_err(parser->device, "invalid report_size %d\n",
 					parser->global.report_size);
 			return -1;
@@ -757,6 +757,7 @@ int hid_open_report(struct hid_device *device)
 	struct hid_item item;
 	unsigned int size;
 	__u8 *start;
+	__u8 *buf;
 	__u8 *end;
 	int ret;
 	static int (*dispatch_type[])(struct hid_parser *parser,
@@ -775,12 +776,21 @@ int hid_open_report(struct hid_device *device)
 		return -ENODEV;
 	size = device->dev_rsize;
 
+	buf = kmemdup(start, size, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
 	if (device->driver->report_fixup)
-		start = device->driver->report_fixup(device, start, &size);
+		start = device->driver->report_fixup(device, buf, &size);
+	else
+		start = buf;
 
-	device->rdesc = kmemdup(start, size, GFP_KERNEL);
-	if (device->rdesc == NULL)
+	start = kmemdup(start, size, GFP_KERNEL);
+	kfree(buf);
+	if (start == NULL)
 		return -ENOMEM;
+
+	device->rdesc = start;
 	device->rsize = size;
 
 	parser = vzalloc(sizeof(struct hid_parser));
@@ -996,7 +1006,8 @@ static void hid_process_event(struct hid_device *hid, struct hid_field *field,
 	struct hid_driver *hdrv = hid->driver;
 	int ret;
 
-	hid_dump_input(hid, usage, value);
+	if (!list_empty(&hid->debug_list))
+		hid_dump_input(hid, usage, value);
 
 	if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
 		ret = hdrv->event(hid, field, usage, value);
@@ -1447,7 +1458,14 @@ void hid_disconnect(struct hid_device *hdev)
 }
 EXPORT_SYMBOL_GPL(hid_disconnect);
 
-/* a list of devices for which there is a specialized driver on HID bus */
+/*
+ * A list of devices for which there is a specialized driver on HID bus.
+ *
+ * Please note that for multitouch devices (driven by hid-multitouch driver),
+ * there is a proper autodetection and autoloading in place (based on presence
+ * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
+ * as we are doing the right thing in hid_scan_usage().
+ */
 static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
@@ -1550,6 +1568,10 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_1020) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_09FA) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_1020) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_09FA) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
@@ -1558,11 +1580,14 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
- 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
+#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
+#endif
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
@@ -1624,7 +1649,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
+#if IS_ENABLED(CONFIG_HID_ROCCAT)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
@@ -1633,15 +1658,18 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
+#endif
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_SENSOR_HUB_7014) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
@@ -1661,6 +1689,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
diff --git a/drivers/hid/hid-cypress.c b/drivers/hid/hid-cypress.c
index 9e43aaca977..3e159a50dac 100644
--- a/drivers/hid/hid-cypress.c
+++ b/drivers/hid/hid-cypress.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 01dd9a7daf7..933fff0fff1 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -911,15 +911,21 @@ static void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
 
 }
 
-
 static int hid_debug_rdesc_show(struct seq_file *f, void *p)
 {
 	struct hid_device *hdev = f->private;
+	const __u8 *rdesc = hdev->rdesc;
+	unsigned rsize = hdev->rsize;
 	int i;
 
+	if (!rdesc) {
+		rdesc = hdev->dev_rdesc;
+		rsize = hdev->dev_rsize;
+	}
+
 	/* dump HID report descriptor */
-	for (i = 0; i < hdev->rsize; i++)
-		seq_printf(f, "%02x ", hdev->rdesc[i]);
+	for (i = 0; i < rsize; i++)
+		seq_printf(f, "%02x ", rdesc[i]);
 	seq_printf(f, "\n\n");
 
 	/* dump parsed data and input mappings */
diff --git a/drivers/hid/hid-ezkey.c b/drivers/hid/hid-ezkey.c
index ca1163e9d42..6540af2871a 100644
--- a/drivers/hid/hid-ezkey.c
+++ b/drivers/hid/hid-ezkey.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-gyration.c b/drivers/hid/hid-gyration.c
index e88b951cd10..4442c30ef53 100644
--- a/drivers/hid/hid-gyration.c
+++ b/drivers/hid/hid-gyration.c
@@ -4,7 +4,6 @@
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  *  Copyright (c) 2006-2008 Jiri Kosina
  */
diff --git a/drivers/hid/hid-holtekff.c b/drivers/hid/hid-holtekff.c
index 4e7542151e2..ff295e60059 100644
--- a/drivers/hid/hid-holtekff.c
+++ b/drivers/hid/hid-holtekff.c
@@ -100,8 +100,7 @@ static void holtekff_send(struct holtekff_device *holtekff,
 		holtekff->field->value[i] = data[i];
 	}
 
-	dbg_hid("sending %02x %02x %02x %02x %02x %02x %02x\n", data[0],
-		data[1], data[2], data[3], data[4], data[5], data[6]);
+	dbg_hid("sending %*ph\n", 7, data);
 
 	usbhid_submit_report(hid, holtekff->field->report, USB_DIR_OUT);
 }
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 1dcb76ff51e..269b50912a4 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  */
 
 /*
@@ -269,7 +268,11 @@
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA	0x72fa
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302	0x7302
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349	0x7349
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7	0x73f7
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224      0x7224
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0      0x72d0
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4      0x72c4
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
@@ -283,6 +286,9 @@
 #define USB_VENDOR_ID_EMS		0x2006
 #define USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II 0x0118
 
+#define USB_VENDOR_ID_FLATFROG		0x25b5
+#define USB_DEVICE_ID_MULTITOUCH_3200	0x0002
+
 #define USB_VENDOR_ID_ESSENTIAL_REALITY	0x0d7f
 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
 
@@ -296,6 +302,9 @@
 #define USB_VENDOR_ID_EZKEY		0x0518
 #define USB_DEVICE_ID_BTC_8193		0x0002
 
+#define USB_VENDOR_ID_FREESCALE		0x15A2
+#define USB_DEVICE_ID_FREESCALE_MX28	0x004F
+
 #define USB_VENDOR_ID_FRUCTEL	0x25B6
 #define USB_DEVICE_ID_GAMETEL_MT_MODE	0x0002
 
@@ -305,6 +314,7 @@
 
 #define USB_VENDOR_ID_GENERAL_TOUCH	0x0dfc
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS 0x0003
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS 0x0100
 
 #define USB_VENDOR_ID_GLAB		0x06c2
 #define USB_DEVICE_ID_4_PHIDGETSERVO_30	0x0038
@@ -419,6 +429,11 @@
 #define USB_VENDOR_ID_IMATION		0x0718
 #define USB_DEVICE_ID_DISC_STAKKA	0xd000
 
+#define USB_VENDOR_ID_INTEL_8086	0x8086
+#define USB_VENDOR_ID_INTEL_8087	0x8087
+#define USB_DEVICE_ID_SENSOR_HUB_1020	0x1020
+#define USB_DEVICE_ID_SENSOR_HUB_09FA	0x09FA
+
 #define USB_VENDOR_ID_IRTOUCHSYSTEMS	0x6615
 #define USB_DEVICE_ID_IRTOUCH_INFRARED_USB	0x0070
 
@@ -496,6 +511,7 @@
 #define USB_DEVICE_ID_LOGITECH_RECEIVER	0xc101
 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST  0xc110
 #define USB_DEVICE_ID_LOGITECH_HARMONY_LAST 0xc14f
+#define USB_DEVICE_ID_LOGITECH_HARMONY_PS3 0x0306
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD	0xc20a
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD	0xc211
 #define USB_DEVICE_ID_LOGITECH_EXTREME_3D	0xc215
@@ -652,7 +668,6 @@
 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH		0x3000
 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001		0x3001
 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008		0x3008
-#define USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN	0x3001
 
 #define USB_VENDOR_ID_ROCCAT		0x1e7d
 #define USB_DEVICE_ID_ROCCAT_ARVO	0x30d4
@@ -683,6 +698,7 @@
 
 #define USB_VENDOR_ID_SONY			0x054c
 #define USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE	0x024b
+#define USB_DEVICE_ID_SONY_PS3_BDREMOTE		0x0306
 #define USB_DEVICE_ID_SONY_PS3_CONTROLLER	0x0268
 #define USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER	0x042f
 
@@ -695,6 +711,7 @@
 
 #define USB_VENDOR_ID_STANTUM_STM		0x0483
 #define USB_DEVICE_ID_MTP_STM		0x3261
+#define USB_DEVICE_ID_SENSOR_HUB_7014	0x7014
 
 #define USB_VENDOR_ID_STANTUM_SITRONIX		0x1403
 #define USB_DEVICE_ID_MTP_SITRONIX		0x5001
@@ -758,6 +775,7 @@
 #define USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U	0x0005
 #define USB_DEVICE_ID_UCLOGIC_TABLET_WP1062	0x0064
 #define USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850	0x0522
+#define USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60	0x0781
 
 #define USB_VENDOR_ID_UNITEC	0x227d
 #define USB_DEVICE_ID_UNITEC_USB_TOUCH_0709	0x0709
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 811bfad6460..d917c0d5368 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1154,6 +1154,7 @@ static void report_features(struct hid_device *hid)
 
 int hidinput_connect(struct hid_device *hid, unsigned int force)
 {
+	struct hid_driver *drv = hid->driver;
 	struct hid_report *report;
 	struct hid_input *hidinput = NULL;
 	struct input_dev *input_dev;
@@ -1228,6 +1229,8 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
 				 * UGCI) cram a lot of unrelated inputs into the
 				 * same interface. */
 				hidinput->report = report;
+				if (drv->input_configured)
+					drv->input_configured(hid, hidinput);
 				if (input_register_device(hidinput->input))
 					goto out_cleanup;
 				hidinput = NULL;
@@ -1235,8 +1238,12 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
 		}
 	}
 
-	if (hidinput && input_register_device(hidinput->input))
-		goto out_cleanup;
+	if (hidinput) {
+		if (drv->input_configured)
+			drv->input_configured(hid, hidinput);
+		if (input_register_device(hidinput->input))
+			goto out_cleanup;
+	}
 
 	return 0;
 
diff --git a/drivers/hid/hid-lcpower.c b/drivers/hid/hid-lcpower.c
index c4fe9bd095b..22bc14abdfa 100644
--- a/drivers/hid/hid-lcpower.c
+++ b/drivers/hid/hid-lcpower.c
@@ -24,7 +24,7 @@ static int ts_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
-	if ((usage->hid & HID_USAGE_PAGE) != 0x0ffbc0000)
+	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
 		return 0;
 
 	switch (usage->hid & HID_USAGE) {
diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c
index 77d2df04c97..cea016e94f4 100644
--- a/drivers/hid/hid-lenovo-tpkbd.c
+++ b/drivers/hid/hid-lenovo-tpkbd.c
@@ -56,9 +56,8 @@ static int tpkbd_input_mapping(struct hid_device *hdev,
 static int tpkbd_features_set(struct hid_device *hdev)
 {
 	struct hid_report *report;
-	struct tpkbd_data_pointer *data_pointer;
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
 	report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
 
 	report->field[0]->value[0]  = data_pointer->press_to_select   ? 0x01 : 0x02;
@@ -77,14 +76,8 @@ static ssize_t pointer_press_to_select_show(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
-
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
 }
@@ -94,16 +87,10 @@ static ssize_t pointer_press_to_select_store(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (kstrtoint(buf, 10, &value))
 		return -EINVAL;
 	if (value < 0 || value > 1)
@@ -119,14 +106,8 @@ static ssize_t pointer_dragging_show(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
-
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
 }
@@ -136,16 +117,10 @@ static ssize_t pointer_dragging_store(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (kstrtoint(buf, 10, &value))
 		return -EINVAL;
 	if (value < 0 || value > 1)
@@ -161,14 +136,8 @@ static ssize_t pointer_release_to_select_show(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
-
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
 }
@@ -178,16 +147,10 @@ static ssize_t pointer_release_to_select_store(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (kstrtoint(buf, 10, &value))
 		return -EINVAL;
 	if (value < 0 || value > 1)
@@ -203,14 +166,8 @@ static ssize_t pointer_select_right_show(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
-
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
 }
@@ -220,16 +177,10 @@ static ssize_t pointer_select_right_store(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (kstrtoint(buf, 10, &value))
 		return -EINVAL;
 	if (value < 0 || value > 1)
@@ -245,14 +196,8 @@ static ssize_t pointer_sensitivity_show(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
-
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n",
 		data_pointer->sensitivity);
@@ -263,16 +208,10 @@ static ssize_t pointer_sensitivity_store(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 		return -EINVAL;
 
@@ -286,14 +225,10 @@ static ssize_t pointer_press_speed_show(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
+	data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n",
 		data_pointer->press_speed);
@@ -304,16 +239,10 @@ static ssize_t pointer_press_speed_store(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
-	hdev = container_of(dev, struct hid_device, dev);
-	if (hdev == NULL)
-		return -ENODEV;
-
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 		return -EINVAL;
 
@@ -370,15 +299,11 @@ static const struct attribute_group tpkbd_attr_group_pointer = {
 static enum led_brightness tpkbd_led_brightness_get(
 			struct led_classdev *led_cdev)
 {
-	struct device *dev;
-	struct hid_device *hdev;
-	struct tpkbd_data_pointer *data_pointer;
+	struct device *dev = led_cdev->dev->parent;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	int led_nr = 0;
 
-	dev = led_cdev->dev->parent;
-	hdev = container_of(dev, struct hid_device, dev);
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (led_cdev == &data_pointer->led_micmute)
 		led_nr = 1;
 
@@ -390,16 +315,12 @@ static enum led_brightness tpkbd_led_brightness_get(
 static void tpkbd_led_brightness_set(struct led_classdev *led_cdev,
 			enum led_brightness value)
 {
-	struct device *dev;
-	struct hid_device *hdev;
+	struct device *dev = led_cdev->dev->parent;
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 	struct hid_report *report;
-	struct tpkbd_data_pointer *data_pointer;
 	int led_nr = 0;
 
-	dev = led_cdev->dev->parent;
-	hdev = container_of(dev, struct hid_device, dev);
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	if (led_cdev == &data_pointer->led_micmute)
 		led_nr = 1;
 
@@ -508,17 +429,17 @@ err_free:
 
 static void tpkbd_remove_tp(struct hid_device *hdev)
 {
-	struct tpkbd_data_pointer *data_pointer;
+	struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev);
 
 	sysfs_remove_group(&hdev->dev.kobj,
 			&tpkbd_attr_group_pointer);
 
-	data_pointer = (struct tpkbd_data_pointer *) hid_get_drvdata(hdev);
-
 	led_classdev_unregister(&data_pointer->led_micmute);
 	led_classdev_unregister(&data_pointer->led_mute);
 
 	hid_set_drvdata(hdev, NULL);
+	kfree(data_pointer->led_micmute.name);
+	kfree(data_pointer->led_mute.name);
 	kfree(data_pointer);
 }
 
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index fc37ed6b108..a2f8e88b9fa 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  *  Copyright (c) 2010 Hendrik Iben
  */
@@ -109,7 +108,7 @@ static __u8 dfp_rdesc_fixed[] = {
 static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hdev);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
 
 	if ((drv_data->quirks & LG_RDESC) && *rsize >= 90 && rdesc[83] == 0x26 &&
 			rdesc[84] == 0x8c && rdesc[85] == 0x02) {
@@ -278,7 +277,7 @@ static int lg_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		  0,  0,  0,  0,  0,183,184,185,186,187,
 		188,189,190,191,192,193,194,  0,  0,  0
 	};
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hdev);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
 	unsigned int hid = usage->hid;
 
 	if (hdev->product == USB_DEVICE_ID_LOGITECH_RECEIVER &&
@@ -319,7 +318,7 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hdev);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
 
 	if ((drv_data->quirks & LG_BAD_RELATIVE_KEYS) && usage->type == EV_KEY &&
 			(field->flags & HID_MAIN_ITEM_RELATIVE))
@@ -335,13 +334,16 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 static int lg_event(struct hid_device *hdev, struct hid_field *field,
 		struct hid_usage *usage, __s32 value)
 {
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hdev);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
 
 	if ((drv_data->quirks & LG_INVERT_HWHEEL) && usage->code == REL_HWHEEL) {
 		input_event(field->hidinput->input, usage->type, usage->code,
 				-value);
 		return 1;
 	}
+	if (drv_data->quirks & LG_FF4) {
+		return lg4ff_adjust_input_event(hdev, field, usage, value, drv_data);
+	}
 
 	return 0;
 }
@@ -358,7 +360,7 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		return -ENOMEM;
 	}
 	drv_data->quirks = id->driver_data;
-	
+
 	hid_set_drvdata(hdev, (void *)drv_data);
 
 	if (drv_data->quirks & LG_NOGET)
@@ -380,7 +382,7 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	}
 
 	/* Setup wireless link with Logitech Wii wheel */
-	if(hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
+	if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
 		unsigned char buf[] = { 0x00, 0xAF,  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 		ret = hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
@@ -416,7 +418,7 @@ err_free:
 
 static void lg_remove(struct hid_device *hdev)
 {
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hdev);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
 	if (drv_data->quirks & LG_FF4)
 		lg4ff_deinit(hdev);
 
@@ -476,7 +478,7 @@ static const struct hid_device_id lg_devices[] = {
 		.driver_data = LG_NOGET | LG_FF4 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL),
 		.driver_data = LG_FF4 },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ),
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG),
 		.driver_data = LG_FF },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
 		.driver_data = LG_FF2 },
diff --git a/drivers/hid/hid-lg.h b/drivers/hid/hid-lg.h
index d64cf8d2751..142ce3f5f05 100644
--- a/drivers/hid/hid-lg.h
+++ b/drivers/hid/hid-lg.h
@@ -25,9 +25,13 @@ static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
 #endif
 
 #ifdef CONFIG_LOGIWHEELS_FF
+int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
+			     struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data);
 int lg4ff_init(struct hid_device *hdev);
 int lg4ff_deinit(struct hid_device *hdev);
 #else
+static inline int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
+					   struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data) { return 0; }
 static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
 static inline int lg4ff_deinit(struct hid_device *hdev) { return -1; }
 #endif
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index f3390ee6105..d7947c701f3 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -43,6 +43,11 @@
 #define G27_REV_MAJ 0x12
 #define G27_REV_MIN 0x38
 
+#define DFP_X_MIN 0
+#define DFP_X_MAX 16383
+#define DFP_PEDAL_MIN 0
+#define DFP_PEDAL_MAX 255
+
 #define to_hid_device(pdev) container_of(pdev, struct hid_device, dev)
 
 static void hid_lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
@@ -53,6 +58,7 @@ static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *at
 static DEVICE_ATTR(range, S_IRWXU | S_IRWXG | S_IRWXO, lg4ff_range_show, lg4ff_range_store);
 
 struct lg4ff_device_entry {
+	__u32 product_id;
 	__u16 range;
 	__u16 min_range;
 	__u16 max_range;
@@ -129,26 +135,77 @@ static const struct lg4ff_usb_revision lg4ff_revs[] = {
 	{G27_REV_MAJ,  G27_REV_MIN,  &native_g27},	/* G27 */
 };
 
+/* Recalculates X axis value accordingly to currently selected range */
+static __s32 lg4ff_adjust_dfp_x_axis(__s32 value, __u16 range)
+{
+	__u16 max_range;
+	__s32 new_value;
+
+	if (range == 900)
+		return value;
+	else if (range == 200)
+		return value;
+	else if (range < 200)
+		max_range = 200;
+	else
+		max_range = 900;
+
+	new_value = 8192 + mult_frac(value - 8192, max_range, range);
+	if (new_value < 0)
+		return 0;
+	else if (new_value > 16383)
+		return 16383;
+	else
+		return new_value;
+}
+
+int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
+			     struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data)
+{
+	struct lg4ff_device_entry *entry = drv_data->device_props;
+	__s32 new_value = 0;
+
+	if (!entry) {
+		hid_err(hid, "Device properties not found");
+		return 0;
+	}
+
+	switch (entry->product_id) {
+	case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+		switch (usage->code) {
+		case ABS_X:
+			new_value = lg4ff_adjust_dfp_x_axis(value, entry->range);
+			input_event(field->hidinput->input, usage->type, usage->code, new_value);
+			return 1;
+		default:
+			return 0;
+		}
+	default:
+		return 0;
+	}
+}
+
 static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
 {
 	struct hid_device *hid = input_get_drvdata(dev);
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+	__s32 *value = report->field[0]->value;
 	int x;
 
-#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
+#define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0)
 
 	switch (effect->type) {
 	case FF_CONSTANT:
 		x = effect->u.ramp.start_level + 0x80;	/* 0x80 is no force */
 		CLAMP(x);
-		report->field[0]->value[0] = 0x11;	/* Slot 1 */
-		report->field[0]->value[1] = 0x08;
-		report->field[0]->value[2] = x;
-		report->field[0]->value[3] = 0x80;
-		report->field[0]->value[4] = 0x00;
-		report->field[0]->value[5] = 0x00;
-		report->field[0]->value[6] = 0x00;
+		value[0] = 0x11;	/* Slot 1 */
+		value[1] = 0x08;
+		value[2] = x;
+		value[3] = 0x80;
+		value[4] = 0x00;
+		value[5] = 0x00;
+		value[6] = 0x00;
 
 		usbhid_submit_report(hid, report, USB_DIR_OUT);
 		break;
@@ -163,14 +220,15 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud
 	struct hid_device *hid = input_get_drvdata(dev);
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+	__s32 *value = report->field[0]->value;
 
-	report->field[0]->value[0] = 0xfe;
-	report->field[0]->value[1] = 0x0d;
-	report->field[0]->value[2] = magnitude >> 13;
-	report->field[0]->value[3] = magnitude >> 13;
-	report->field[0]->value[4] = magnitude >> 8;
-	report->field[0]->value[5] = 0x00;
-	report->field[0]->value[6] = 0x00;
+	value[0] = 0xfe;
+	value[1] = 0x0d;
+	value[2] = magnitude >> 13;
+	value[3] = magnitude >> 13;
+	value[4] = magnitude >> 8;
+	value[5] = 0x00;
+	value[6] = 0x00;
 
 	usbhid_submit_report(hid, report, USB_DIR_OUT);
 }
@@ -181,16 +239,16 @@ static void hid_lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude)
 	struct hid_device *hid = input_get_drvdata(dev);
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+	__s32 *value = report->field[0]->value;
 	magnitude = magnitude * 90 / 65535;
-	
 
-	report->field[0]->value[0] = 0xfe;
-	report->field[0]->value[1] = 0x03;
-	report->field[0]->value[2] = magnitude >> 14;
-	report->field[0]->value[3] = magnitude >> 14;
-	report->field[0]->value[4] = magnitude;
-	report->field[0]->value[5] = 0x00;
-	report->field[0]->value[6] = 0x00;
+	value[0] = 0xfe;
+	value[1] = 0x03;
+	value[2] = magnitude >> 14;
+	value[3] = magnitude >> 14;
+	value[4] = magnitude;
+	value[5] = 0x00;
+	value[6] = 0x00;
 
 	usbhid_submit_report(hid, report, USB_DIR_OUT);
 }
@@ -200,15 +258,17 @@ static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range)
 {
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+	__s32 *value = report->field[0]->value;
+
 	dbg_hid("G25/G27/DFGT: setting range to %u\n", range);
 
-	report->field[0]->value[0] = 0xf8;
-	report->field[0]->value[1] = 0x81;
-	report->field[0]->value[2] = range & 0x00ff;
-	report->field[0]->value[3] = (range & 0xff00) >> 8;
-	report->field[0]->value[4] = 0x00;
-	report->field[0]->value[5] = 0x00;
-	report->field[0]->value[6] = 0x00;
+	value[0] = 0xf8;
+	value[1] = 0x81;
+	value[2] = range & 0x00ff;
+	value[3] = (range & 0xff00) >> 8;
+	value[4] = 0x00;
+	value[5] = 0x00;
+	value[6] = 0x00;
 
 	usbhid_submit_report(hid, report, USB_DIR_OUT);
 }
@@ -219,16 +279,18 @@ static void hid_lg4ff_set_range_dfp(struct hid_device *hid, __u16 range)
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
 	int start_left, start_right, full_range;
+	__s32 *value = report->field[0]->value;
+
 	dbg_hid("Driving Force Pro: setting range to %u\n", range);
 
 	/* Prepare "coarse" limit command */
-	report->field[0]->value[0] = 0xf8;
-	report->field[0]->value[1] = 0x00; 	/* Set later */
-	report->field[0]->value[2] = 0x00;
-	report->field[0]->value[3] = 0x00;
-	report->field[0]->value[4] = 0x00;
-	report->field[0]->value[5] = 0x00;
-	report->field[0]->value[6] = 0x00;
+	value[0] = 0xf8;
+	value[1] = 0x00;	/* Set later */
+	value[2] = 0x00;
+	value[3] = 0x00;
+	value[4] = 0x00;
+	value[5] = 0x00;
+	value[6] = 0x00;
 
 	if (range > 200) {
 		report->field[0]->value[1] = 0x03;
@@ -240,13 +302,13 @@ static void hid_lg4ff_set_range_dfp(struct hid_device *hid, __u16 range)
 	usbhid_submit_report(hid, report, USB_DIR_OUT);
 
 	/* Prepare "fine" limit command */
-	report->field[0]->value[0] = 0x81;
-	report->field[0]->value[1] = 0x0b;
-	report->field[0]->value[2] = 0x00;
-	report->field[0]->value[3] = 0x00;
-	report->field[0]->value[4] = 0x00;
-	report->field[0]->value[5] = 0x00;
-	report->field[0]->value[6] = 0x00;
+	value[0] = 0x81;
+	value[1] = 0x0b;
+	value[2] = 0x00;
+	value[3] = 0x00;
+	value[4] = 0x00;
+	value[5] = 0x00;
+	value[6] = 0x00;
 
 	if (range == 200 || range == 900) {	/* Do not apply any fine limit */
 		usbhid_submit_report(hid, report, USB_DIR_OUT);
@@ -257,11 +319,11 @@ static void hid_lg4ff_set_range_dfp(struct hid_device *hid, __u16 range)
 	start_left = (((full_range - range + 1) * 2047) / full_range);
 	start_right = 0xfff - start_left;
 
-	report->field[0]->value[2] = start_left >> 4;
-	report->field[0]->value[3] = start_right >> 4;
-	report->field[0]->value[4] = 0xff;
-	report->field[0]->value[5] = (start_right & 0xe) << 4 | (start_left & 0xe);
-	report->field[0]->value[6] = 0xff;
+	value[2] = start_left >> 4;
+	value[3] = start_right >> 4;
+	value[4] = 0xff;
+	value[5] = (start_right & 0xe) << 4 | (start_left & 0xe);
+	value[6] = 0xff;
 
 	usbhid_submit_report(hid, report, USB_DIR_OUT);
 }
@@ -344,14 +406,15 @@ static void lg4ff_set_leds(struct hid_device *hid, __u8 leds)
 {
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
-
-	report->field[0]->value[0] = 0xf8;
-	report->field[0]->value[1] = 0x12;
-	report->field[0]->value[2] = leds;
-	report->field[0]->value[3] = 0x00;
-	report->field[0]->value[4] = 0x00;
-	report->field[0]->value[5] = 0x00;
-	report->field[0]->value[6] = 0x00;
+	__s32 *value = report->field[0]->value;
+
+	value[0] = 0xf8;
+	value[1] = 0x12;
+	value[2] = leds;
+	value[3] = 0x00;
+	value[4] = 0x00;
+	value[5] = 0x00;
+	value[6] = 0x00;
 	usbhid_submit_report(hid, report, USB_DIR_OUT);
 }
 
@@ -360,7 +423,7 @@ static void lg4ff_led_set_brightness(struct led_classdev *led_cdev,
 {
 	struct device *dev = led_cdev->dev->parent;
 	struct hid_device *hid = container_of(dev, struct hid_device, dev);
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hid);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hid);
 	struct lg4ff_device_entry *entry;
 	int i, state = 0;
 
@@ -395,7 +458,7 @@ static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cde
 {
 	struct device *dev = led_cdev->dev->parent;
 	struct hid_device *hid = container_of(dev, struct hid_device, dev);
-	struct lg_drv_data *drv_data = (struct lg_drv_data *)hid_get_drvdata(hid);
+	struct lg_drv_data *drv_data = hid_get_drvdata(hid);
 	struct lg4ff_device_entry *entry;
 	int i, value = 0;
 
@@ -501,7 +564,7 @@ int lg4ff_init(struct hid_device *hid)
 	/* Check if autocentering is available and
 	 * set the centering force to zero by default */
 	if (test_bit(FF_AUTOCENTER, dev->ffbit)) {
-		if(rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN)	/* Formula Force EX expects different autocentering command */
+		if (rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN)	/* Formula Force EX expects different autocentering command */
 			dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex;
 		else
 			dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default;
@@ -524,6 +587,7 @@ int lg4ff_init(struct hid_device *hid)
 	}
 	drv_data->device_props = entry;
 
+	entry->product_id = lg4ff_devices[i].product_id;
 	entry->min_range = lg4ff_devices[i].min_range;
 	entry->max_range = lg4ff_devices[i].max_range;
 	entry->set_range = lg4ff_devices[i].set_range;
@@ -534,6 +598,18 @@ int lg4ff_init(struct hid_device *hid)
 		return error;
 	dbg_hid("sysfs interface created\n");
 
+	/* Set default axes parameters */
+	switch (lg4ff_devices[i].product_id) {
+	case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+		dbg_hid("Setting axes parameters for Driving Force Pro\n");
+		input_set_abs_params(dev, ABS_X, DFP_X_MIN, DFP_X_MAX, 0, 0);
+		input_set_abs_params(dev, ABS_Y, DFP_PEDAL_MIN, DFP_PEDAL_MAX, 0, 0);
+		input_set_abs_params(dev, ABS_RZ, DFP_PEDAL_MIN, DFP_PEDAL_MAX, 0, 0);
+		break;
+	default:
+		break;
+	}
+
 	/* Set the maximum range to start with */
 	entry->range = entry->max_range;
 	if (entry->set_range != NULL)
@@ -594,6 +670,8 @@ out:
 	return 0;
 }
 
+
+
 int lg4ff_deinit(struct hid_device *hid)
 {
 	struct lg4ff_device_entry *entry;
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 0f9c146fc00..9500f2f3f8f 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -193,6 +193,7 @@ static struct hid_ll_driver logi_dj_ll_driver;
 static int logi_dj_output_hidraw_report(struct hid_device *hid, u8 * buf,
 					size_t count,
 					unsigned char report_type);
+static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
 
 static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
 						struct dj_report *dj_report)
@@ -233,6 +234,7 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
 	if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
 	    SPFUNCTION_DEVICE_LIST_EMPTY) {
 		dbg_hid("%s: device list is empty\n", __func__);
+		djrcv_dev->querying_devices = false;
 		return;
 	}
 
@@ -243,6 +245,12 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
 		return;
 	}
 
+	if (djrcv_dev->paired_dj_devices[dj_report->device_index]) {
+		/* The device is already known. No need to reallocate it. */
+		dbg_hid("%s: device is already known\n", __func__);
+		return;
+	}
+
 	dj_hiddev = hid_allocate_device();
 	if (IS_ERR(dj_hiddev)) {
 		dev_err(&djrcv_hdev->dev, "%s: hid_allocate_device failed\n",
@@ -306,6 +314,7 @@ static void delayedwork_callback(struct work_struct *work)
 	struct dj_report dj_report;
 	unsigned long flags;
 	int count;
+	int retval;
 
 	dbg_hid("%s\n", __func__);
 
@@ -338,6 +347,25 @@ static void delayedwork_callback(struct work_struct *work)
 		logi_dj_recv_destroy_djhid_device(djrcv_dev, &dj_report);
 		break;
 	default:
+	/* A normal report (i. e. not belonging to a pair/unpair notification)
+	 * arriving here, means that the report arrived but we did not have a
+	 * paired dj_device associated to the report's device_index, this
+	 * means that the original "device paired" notification corresponding
+	 * to this dj_device never arrived to this driver. The reason is that
+	 * hid-core discards all packets coming from a device while probe() is
+	 * executing. */
+	if (!djrcv_dev->paired_dj_devices[dj_report.device_index]) {
+		/* ok, we don't know the device, just re-ask the
+		 * receiver for the list of connected devices. */
+		retval = logi_dj_recv_query_paired_devices(djrcv_dev);
+		if (!retval) {
+			/* everything went fine, so just leave */
+			break;
+		}
+		dev_err(&djrcv_dev->hdev->dev,
+			"%s:logi_dj_recv_query_paired_devices "
+			"error:%d\n", __func__, retval);
+		}
 		dbg_hid("%s: unexpected report type\n", __func__);
 	}
 }
@@ -368,6 +396,12 @@ static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
 	if (!djdev) {
 		dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
 			" is NULL, index %d\n", dj_report->device_index);
+		kfifo_in(&djrcv_dev->notif_fifo, dj_report, sizeof(struct dj_report));
+
+		if (schedule_work(&djrcv_dev->work) == 0) {
+			dbg_hid("%s: did not schedule the work item, was already "
+			"queued\n", __func__);
+		}
 		return;
 	}
 
@@ -398,6 +432,12 @@ static void logi_dj_recv_forward_report(struct dj_receiver_dev *djrcv_dev,
 	if (dj_device == NULL) {
 		dbg_hid("djrcv_dev->paired_dj_devices[dj_report->device_index]"
 			" is NULL, index %d\n", dj_report->device_index);
+		kfifo_in(&djrcv_dev->notif_fifo, dj_report, sizeof(struct dj_report));
+
+		if (schedule_work(&djrcv_dev->work) == 0) {
+			dbg_hid("%s: did not schedule the work item, was already "
+			"queued\n", __func__);
+		}
 		return;
 	}
 
@@ -439,7 +479,11 @@ static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
 	struct dj_report *dj_report;
 	int retval;
 
-	dj_report = kzalloc(sizeof(dj_report), GFP_KERNEL);
+	/* no need to protect djrcv_dev->querying_devices */
+	if (djrcv_dev->querying_devices)
+		return 0;
+
+	dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
 	if (!dj_report)
 		return -ENOMEM;
 	dj_report->report_id = REPORT_ID_DJ_SHORT;
@@ -450,13 +494,14 @@ static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
 	return retval;
 }
 
+
 static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
 					  unsigned timeout)
 {
 	struct dj_report *dj_report;
 	int retval;
 
-	dj_report = kzalloc(sizeof(dj_report), GFP_KERNEL);
+	dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
 	if (!dj_report)
 		return -ENOMEM;
 	dj_report->report_id = REPORT_ID_DJ_SHORT;
diff --git a/drivers/hid/hid-logitech-dj.h b/drivers/hid/hid-logitech-dj.h
index fd28a5e0ca3..4a4000340ce 100644
--- a/drivers/hid/hid-logitech-dj.h
+++ b/drivers/hid/hid-logitech-dj.h
@@ -101,6 +101,7 @@ struct dj_receiver_dev {
 	struct work_struct work;
 	struct kfifo notif_fifo;
 	spinlock_t lock;
+	bool querying_devices;
 };
 
 struct dj_device {
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 73647266daa..25ddf3e3aec 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -392,7 +392,7 @@ static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hd
 
 	__set_bit(EV_ABS, input->evbit);
 
-	error = input_mt_init_slots(input, 16);
+	error = input_mt_init_slots(input, 16, 0);
 	if (error)
 		return error;
 	input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255 << 2,
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index e5c699b6c6f..3acdcfcc17d 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-monterey.c b/drivers/hid/hid-monterey.c
index dedf757781a..cd3643e06fa 100644
--- a/drivers/hid/hid-monterey.c
+++ b/drivers/hid/hid-monterey.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 59c8b5c1d2d..3eb02b94fc8 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -51,12 +51,12 @@ MODULE_LICENSE("GPL");
 #define MT_QUIRK_VALID_IS_INRANGE	(1 << 5)
 #define MT_QUIRK_VALID_IS_CONFIDENCE	(1 << 6)
 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE	(1 << 8)
+#define MT_QUIRK_NO_AREA		(1 << 9)
 
 struct mt_slot {
 	__s32 x, y, p, w, h;
 	__s32 contactid;	/* the device ContactID assigned to this slot */
 	bool touch_state;	/* is the touch valid? */
-	bool seen_in_this_frame;/* has this slot been updated */
 };
 
 struct mt_class {
@@ -92,8 +92,9 @@ struct mt_device {
 	__u8 touches_by_report;	/* how many touches are present in one report:
 				* 1 means we should use a serial protocol
 				* > 1 means hybrid (multitouch) protocol */
+	bool serial_maybe;	/* need to check for serial protocol */
 	bool curvalid;		/* is the current contact valid? */
-	struct mt_slot *slots;
+	unsigned mt_flags;	/* flags to pass to input-mt */
 };
 
 /* classes of device behavior */
@@ -115,6 +116,9 @@ struct mt_device {
 #define MT_CLS_EGALAX_SERIAL			0x0104
 #define MT_CLS_TOPSEED				0x0105
 #define MT_CLS_PANASONIC			0x0106
+#define MT_CLS_FLATFROG				0x0107
+#define MT_CLS_GENERALTOUCH_TWOFINGERS		0x0108
+#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS	0x0109
 
 #define MT_DEFAULT_MAXCONTACT	10
 
@@ -134,25 +138,6 @@ static int cypress_compute_slot(struct mt_device *td)
 		return -1;
 }
 
-static int find_slot_from_contactid(struct mt_device *td)
-{
-	int i;
-	for (i = 0; i < td->maxcontacts; ++i) {
-		if (td->slots[i].contactid == td->curdata.contactid &&
-			td->slots[i].touch_state)
-			return i;
-	}
-	for (i = 0; i < td->maxcontacts; ++i) {
-		if (!td->slots[i].seen_in_this_frame &&
-			!td->slots[i].touch_state)
-			return i;
-	}
-	/* should not occurs. If this happens that means
-	 * that the device sent more touches that it says
-	 * in the report descriptor. It is ignored then. */
-	return -1;
-}
-
 static struct mt_class mt_classes[] = {
 	{ .name = MT_CLS_DEFAULT,
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
@@ -190,7 +175,9 @@ static struct mt_class mt_classes[] = {
 			MT_QUIRK_SLOT_IS_CONTACTID,
 		.sn_move = 2048,
 		.sn_width = 128,
-		.sn_height = 128 },
+		.sn_height = 128,
+		.maxcontacts = 60,
+	},
 	{ .name = MT_CLS_CYPRESS,
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 			MT_QUIRK_CYPRESS,
@@ -215,7 +202,24 @@ static struct mt_class mt_classes[] = {
 	{ .name = MT_CLS_PANASONIC,
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
 		.maxcontacts = 4 },
+	{ .name	= MT_CLS_GENERALTOUCH_TWOFINGERS,
+		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
+			MT_QUIRK_VALID_IS_INRANGE |
+			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+		.maxcontacts = 2
+	},
+	{ .name	= MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
+			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+		.maxcontacts = 10
+	},
 
+	{ .name = MT_CLS_FLATFROG,
+		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+			MT_QUIRK_NO_AREA,
+		.sn_move = 2048,
+		.maxcontacts = 40,
+	},
 	{ }
 };
 
@@ -319,24 +323,16 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	* We need to ignore fields that belong to other collections
 	* such as Mouse that might have the same GenericDesktop usages. */
 	if (field->application == HID_DG_TOUCHSCREEN)
-		set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
+		td->mt_flags |= INPUT_MT_DIRECT;
 	else if (field->application != HID_DG_TOUCHPAD)
 		return 0;
 
-	/* In case of an indirect device (touchpad), we need to add
-	 * specific BTN_TOOL_* to be handled by the synaptics xorg
-	 * driver.
-	 * We also consider that touchscreens providing buttons are touchpads.
+	/*
+	 * Model touchscreens providing buttons as touchpads.
 	 */
 	if (field->application == HID_DG_TOUCHPAD ||
-	    (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON ||
-	    cls->is_indirect) {
-		set_bit(INPUT_PROP_POINTER, hi->input->propbit);
-		set_bit(BTN_TOOL_FINGER, hi->input->keybit);
-		set_bit(BTN_TOOL_DOUBLETAP, hi->input->keybit);
-		set_bit(BTN_TOOL_TRIPLETAP, hi->input->keybit);
-		set_bit(BTN_TOOL_QUADTAP, hi->input->keybit);
-	}
+	    (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
+		td->mt_flags |= INPUT_MT_POINTER;
 
 	/* eGalax devices provide a Digitizer.Stylus input which overrides
 	 * the correct Digitizers.Finger X/Y ranges.
@@ -353,8 +349,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 					EV_ABS, ABS_MT_POSITION_X);
 			set_abs(hi->input, ABS_MT_POSITION_X, field,
 				cls->sn_move);
-			/* touchscreen emulation */
-			set_abs(hi->input, ABS_X, field, cls->sn_move);
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
@@ -363,8 +357,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 					EV_ABS, ABS_MT_POSITION_Y);
 			set_abs(hi->input, ABS_MT_POSITION_Y, field,
 				cls->sn_move);
-			/* touchscreen emulation */
-			set_abs(hi->input, ABS_Y, field, cls->sn_move);
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
@@ -388,9 +380,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			td->last_field_index = field->index;
 			return 1;
 		case HID_DG_CONTACTID:
-			if (!td->maxcontacts)
-				td->maxcontacts = MT_DEFAULT_MAXCONTACT;
-			input_mt_init_slots(hi->input, td->maxcontacts);
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			td->touches_by_report++;
@@ -398,18 +387,21 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		case HID_DG_WIDTH:
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_TOUCH_MAJOR);
-			set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
-				cls->sn_width);
+			if (!(cls->quirks & MT_QUIRK_NO_AREA))
+				set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
+					cls->sn_width);
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
 		case HID_DG_HEIGHT:
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_TOUCH_MINOR);
-			set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
-				cls->sn_height);
-			input_set_abs_params(hi->input,
+			if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
+				set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
+					cls->sn_height);
+				input_set_abs_params(hi->input,
 					ABS_MT_ORIENTATION, 0, 1, 0, 0);
+			}
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
@@ -418,9 +410,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 					EV_ABS, ABS_MT_PRESSURE);
 			set_abs(hi->input, ABS_MT_PRESSURE, field,
 				cls->sn_pressure);
-			/* touchscreen emulation */
-			set_abs(hi->input, ABS_PRESSURE, field,
-				cls->sn_pressure);
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
@@ -464,7 +453,7 @@ static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 	return -1;
 }
 
-static int mt_compute_slot(struct mt_device *td)
+static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
 {
 	__s32 quirks = td->mtclass.quirks;
 
@@ -480,42 +469,23 @@ static int mt_compute_slot(struct mt_device *td)
 	if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
 		return td->curdata.contactid - 1;
 
-	return find_slot_from_contactid(td);
+	return input_mt_get_slot_by_key(input, td->curdata.contactid);
 }
 
 /*
  * this function is called when a whole contact has been processed,
  * so that it can assign it to a slot and store the data there
  */
-static void mt_complete_slot(struct mt_device *td)
+static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
 {
-	td->curdata.seen_in_this_frame = true;
 	if (td->curvalid) {
-		int slotnum = mt_compute_slot(td);
-
-		if (slotnum >= 0 && slotnum < td->maxcontacts)
-			td->slots[slotnum] = td->curdata;
-	}
-	td->num_received++;
-}
+		int slotnum = mt_compute_slot(td, input);
+		struct mt_slot *s = &td->curdata;
 
+		if (slotnum < 0 || slotnum >= td->maxcontacts)
+			return;
 
-/*
- * this function is called when a whole packet has been received and processed,
- * so that it can decide what to send to the input layer.
- */
-static void mt_emit_event(struct mt_device *td, struct input_dev *input)
-{
-	int i;
-
-	for (i = 0; i < td->maxcontacts; ++i) {
-		struct mt_slot *s = &(td->slots[i]);
-		if ((td->mtclass.quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
-			!s->seen_in_this_frame) {
-			s->touch_state = false;
-		}
-
-		input_mt_slot(input, i);
+		input_mt_slot(input, slotnum);
 		input_mt_report_slot_state(input, MT_TOOL_FINGER,
 			s->touch_state);
 		if (s->touch_state) {
@@ -532,24 +502,29 @@ static void mt_emit_event(struct mt_device *td, struct input_dev *input)
 			input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
 			input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
 		}
-		s->seen_in_this_frame = false;
-
 	}
 
-	input_mt_report_pointer_emulation(input, true);
+	td->num_received++;
+}
+
+/*
+ * this function is called when a whole packet has been received and processed,
+ * so that it can decide what to send to the input layer.
+ */
+static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
+{
+	input_mt_sync_frame(input);
 	input_sync(input);
 	td->num_received = 0;
 }
 
-
-
 static int mt_event(struct hid_device *hid, struct hid_field *field,
 				struct hid_usage *usage, __s32 value)
 {
 	struct mt_device *td = hid_get_drvdata(hid);
 	__s32 quirks = td->mtclass.quirks;
 
-	if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
+	if (hid->claimed & HID_CLAIMED_INPUT) {
 		switch (usage->hid) {
 		case HID_DG_INRANGE:
 			if (quirks & MT_QUIRK_ALWAYS_VALID)
@@ -602,11 +577,11 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 		}
 
 		if (usage->hid == td->last_slot_field)
-			mt_complete_slot(td);
+			mt_complete_slot(td, field->hidinput->input);
 
 		if (field->index == td->last_field_index
 			&& td->num_received >= td->num_expected)
-			mt_emit_event(td, field->hidinput->input);
+			mt_sync_frame(td, field->hidinput->input);
 
 	}
 
@@ -685,18 +660,45 @@ static void mt_post_parse(struct mt_device *td)
 	}
 }
 
+static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
+
+{
+	struct mt_device *td = hid_get_drvdata(hdev);
+	struct mt_class *cls = &td->mtclass;
+	struct input_dev *input = hi->input;
+
+	/* Only initialize slots for MT input devices */
+	if (!test_bit(ABS_MT_POSITION_X, input->absbit))
+		return;
+
+	if (!td->maxcontacts)
+		td->maxcontacts = MT_DEFAULT_MAXCONTACT;
+
+	mt_post_parse(td);
+	if (td->serial_maybe)
+		mt_post_parse_default_settings(td);
+
+	if (cls->is_indirect)
+		td->mt_flags |= INPUT_MT_POINTER;
+
+	if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
+		td->mt_flags |= INPUT_MT_DROP_UNUSED;
+
+	input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
+
+	td->mt_flags = 0;
+}
+
 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret, i;
 	struct mt_device *td;
 	struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
 
-	if (id) {
-		for (i = 0; mt_classes[i].name ; i++) {
-			if (id->driver_data == mt_classes[i].name) {
-				mtclass = &(mt_classes[i]);
-				break;
-			}
+	for (i = 0; mt_classes[i].name ; i++) {
+		if (id->driver_data == mt_classes[i].name) {
+			mtclass = &(mt_classes[i]);
+			break;
 		}
 	}
 
@@ -722,6 +724,9 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto fail;
 	}
 
+	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
+		td->serial_maybe = true;
+
 	ret = hid_parse(hdev);
 	if (ret != 0)
 		goto fail;
@@ -730,20 +735,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (ret)
 		goto fail;
 
-	mt_post_parse(td);
-
-	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
-		mt_post_parse_default_settings(td);
-
-	td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
-				GFP_KERNEL);
-	if (!td->slots) {
-		dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
-		hid_hw_stop(hdev);
-		ret = -ENOMEM;
-		goto fail;
-	}
-
 	ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
 
 	mt_set_maxcontacts(hdev);
@@ -767,6 +758,32 @@ static int mt_reset_resume(struct hid_device *hdev)
 	mt_set_input_mode(hdev);
 	return 0;
 }
+
+static int mt_resume(struct hid_device *hdev)
+{
+	struct usb_interface *intf;
+	struct usb_host_interface *interface;
+	struct usb_device *dev;
+
+	if (hdev->bus != BUS_USB)
+		return 0;
+
+	intf = to_usb_interface(hdev->dev.parent);
+	interface = intf->cur_altsetting;
+	dev = hid_to_usb_dev(hdev);
+
+	/* Some Elan legacy devices require SET_IDLE to be set on resume.
+	 * It should be safe to send it to other devices too.
+	 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
+
+	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+			HID_REQ_SET_IDLE,
+			USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+			0, interface->desc.bInterfaceNumber,
+			NULL, 0, USB_CTRL_SET_TIMEOUT);
+
+	return 0;
+}
 #endif
 
 static void mt_remove(struct hid_device *hdev)
@@ -774,7 +791,6 @@ static void mt_remove(struct hid_device *hdev)
 	struct mt_device *td = hid_get_drvdata(hdev);
 	sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
 	hid_hw_stop(hdev);
-	kfree(td->slots);
 	kfree(td);
 	hid_set_drvdata(hdev, NULL);
 }
@@ -885,17 +901,37 @@ static const struct hid_device_id mt_devices[] = {
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
 	{ .driver_data = MT_CLS_EGALAX_SERIAL,
 		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
+	{ .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
+	{ .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
+	{ .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
 
 	/* Elo TouchSystems IntelliTouch Plus panel */
 	{ .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
 		MT_USB_DEVICE(USB_VENDOR_ID_ELO,
 			USB_DEVICE_ID_ELO_TS2515) },
 
+	/* Flatfrog Panels */
+	{ .driver_data = MT_CLS_FLATFROG,
+		MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
+			USB_DEVICE_ID_MULTITOUCH_3200) },
+
 	/* GeneralTouch panel */
-	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+	{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
 		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
 			USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
 
 	/* Gametel game controller */
 	{ .driver_data = MT_CLS_DEFAULT,
@@ -1087,11 +1123,13 @@ static struct hid_driver mt_driver = {
 	.remove = mt_remove,
 	.input_mapping = mt_input_mapping,
 	.input_mapped = mt_input_mapped,
+	.input_configured = mt_input_configured,
 	.feature_mapping = mt_feature_mapping,
 	.usage_table = mt_grabbed_usages,
 	.event = mt_event,
 #ifdef CONFIG_PM
 	.reset_resume = mt_reset_resume,
+	.resume = mt_resume,
 #endif
 };
 
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 9fae2ebdd75..86a969f6329 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -882,10 +882,10 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	nd->activate_slack = activate_slack;
 	nd->act_state = activate_slack;
 	nd->deactivate_slack = -deactivate_slack;
-	nd->sensor_logical_width = 0;
-	nd->sensor_logical_height = 0;
-	nd->sensor_physical_width = 0;
-	nd->sensor_physical_height = 0;
+	nd->sensor_logical_width = 1;
+	nd->sensor_logical_height = 1;
+	nd->sensor_physical_width = 1;
+	nd->sensor_physical_height = 1;
 
 	hid_set_drvdata(hdev, nd);
 
diff --git a/drivers/hid/hid-petalynx.c b/drivers/hid/hid-petalynx.c
index f1ea3ff8a98..4c521de4e7e 100644
--- a/drivers/hid/hid-petalynx.c
+++ b/drivers/hid/hid-petalynx.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c
deleted file mode 100644
index 27c8ebdfad0..00000000000
--- a/drivers/hid/hid-picolcd.c
+++ /dev/null
@@ -1,2748 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2010 by Bruno Prémont <bonbons@linux-vserver.org>       *
- *                                                                         *
- *   Based on Logitech G13 driver (v0.4)                                   *
- *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
- *                                                                         *
- *   This program is free software: you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation, version 2 of the License.               *
- *                                                                         *
- *   This driver is distributed in the hope that it will be useful, but    *
- *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
- *   General Public License for more details.                              *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
- ***************************************************************************/
-
-#include <linux/hid.h>
-#include <linux/hid-debug.h>
-#include <linux/input.h>
-#include "hid-ids.h"
-#include "usbhid/usbhid.h"
-#include <linux/usb.h>
-
-#include <linux/fb.h>
-#include <linux/vmalloc.h>
-#include <linux/backlight.h>
-#include <linux/lcd.h>
-
-#include <linux/leds.h>
-
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-
-#include <linux/completion.h>
-#include <linux/uaccess.h>
-#include <linux/module.h>
-
-#define PICOLCD_NAME "PicoLCD (graphic)"
-
-/* Report numbers */
-#define REPORT_ERROR_CODE      0x10 /* LCD: IN[16]  */
-#define   ERR_SUCCESS            0x00
-#define   ERR_PARAMETER_MISSING  0x01
-#define   ERR_DATA_MISSING       0x02
-#define   ERR_BLOCK_READ_ONLY    0x03
-#define   ERR_BLOCK_NOT_ERASABLE 0x04
-#define   ERR_BLOCK_TOO_BIG      0x05
-#define   ERR_SECTION_OVERFLOW   0x06
-#define   ERR_INVALID_CMD_LEN    0x07
-#define   ERR_INVALID_DATA_LEN   0x08
-#define REPORT_KEY_STATE       0x11 /* LCD: IN[2]   */
-#define REPORT_IR_DATA         0x21 /* LCD: IN[63]  */
-#define REPORT_EE_DATA         0x32 /* LCD: IN[63]  */
-#define REPORT_MEMORY          0x41 /* LCD: IN[63]  */
-#define REPORT_LED_STATE       0x81 /* LCD: OUT[1]  */
-#define REPORT_BRIGHTNESS      0x91 /* LCD: OUT[1]  */
-#define REPORT_CONTRAST        0x92 /* LCD: OUT[1]  */
-#define REPORT_RESET           0x93 /* LCD: OUT[2]  */
-#define REPORT_LCD_CMD         0x94 /* LCD: OUT[63] */
-#define REPORT_LCD_DATA        0x95 /* LCD: OUT[63] */
-#define REPORT_LCD_CMD_DATA    0x96 /* LCD: OUT[63] */
-#define	REPORT_EE_READ         0xa3 /* LCD: OUT[63] */
-#define REPORT_EE_WRITE        0xa4 /* LCD: OUT[63] */
-#define REPORT_ERASE_MEMORY    0xb2 /* LCD: OUT[2]  */
-#define REPORT_READ_MEMORY     0xb3 /* LCD: OUT[3]  */
-#define REPORT_WRITE_MEMORY    0xb4 /* LCD: OUT[63] */
-#define REPORT_SPLASH_RESTART  0xc1 /* LCD: OUT[1]  */
-#define REPORT_EXIT_KEYBOARD   0xef /* LCD: OUT[2]  */
-#define REPORT_VERSION         0xf1 /* LCD: IN[2],OUT[1]    Bootloader: IN[2],OUT[1]   */
-#define REPORT_BL_ERASE_MEMORY 0xf2 /*                      Bootloader: IN[36],OUT[4]  */
-#define REPORT_BL_READ_MEMORY  0xf3 /*                      Bootloader: IN[36],OUT[4]  */
-#define REPORT_BL_WRITE_MEMORY 0xf4 /*                      Bootloader: IN[36],OUT[36] */
-#define REPORT_DEVID           0xf5 /* LCD: IN[5], OUT[1]   Bootloader: IN[5],OUT[1]   */
-#define REPORT_SPLASH_SIZE     0xf6 /* LCD: IN[4], OUT[1]   */
-#define REPORT_HOOK_VERSION    0xf7 /* LCD: IN[2], OUT[1]   */
-#define REPORT_EXIT_FLASHER    0xff /*                      Bootloader: OUT[2]         */
-
-#ifdef CONFIG_HID_PICOLCD_FB
-/* Framebuffer
- *
- * The PicoLCD use a Topway LCD module of 256x64 pixel
- * This display area is tiled over 4 controllers with 8 tiles
- * each. Each tile has 8x64 pixel, each data byte representing
- * a 1-bit wide vertical line of the tile.
- *
- * The display can be updated at a tile granularity.
- *
- *       Chip 1           Chip 2           Chip 3           Chip 4
- * +----------------+----------------+----------------+----------------+
- * |     Tile 1     |     Tile 1     |     Tile 1     |     Tile 1     |
- * +----------------+----------------+----------------+----------------+
- * |     Tile 2     |     Tile 2     |     Tile 2     |     Tile 2     |
- * +----------------+----------------+----------------+----------------+
- *                                  ...
- * +----------------+----------------+----------------+----------------+
- * |     Tile 8     |     Tile 8     |     Tile 8     |     Tile 8     |
- * +----------------+----------------+----------------+----------------+
- */
-#define PICOLCDFB_NAME "picolcdfb"
-#define PICOLCDFB_WIDTH (256)
-#define PICOLCDFB_HEIGHT (64)
-#define PICOLCDFB_SIZE (PICOLCDFB_WIDTH * PICOLCDFB_HEIGHT / 8)
-
-#define PICOLCDFB_UPDATE_RATE_LIMIT   10
-#define PICOLCDFB_UPDATE_RATE_DEFAULT  2
-
-/* Framebuffer visual structures */
-static const struct fb_fix_screeninfo picolcdfb_fix = {
-	.id          = PICOLCDFB_NAME,
-	.type        = FB_TYPE_PACKED_PIXELS,
-	.visual      = FB_VISUAL_MONO01,
-	.xpanstep    = 0,
-	.ypanstep    = 0,
-	.ywrapstep   = 0,
-	.line_length = PICOLCDFB_WIDTH / 8,
-	.accel       = FB_ACCEL_NONE,
-};
-
-static const struct fb_var_screeninfo picolcdfb_var = {
-	.xres           = PICOLCDFB_WIDTH,
-	.yres           = PICOLCDFB_HEIGHT,
-	.xres_virtual   = PICOLCDFB_WIDTH,
-	.yres_virtual   = PICOLCDFB_HEIGHT,
-	.width          = 103,
-	.height         = 26,
-	.bits_per_pixel = 1,
-	.grayscale      = 1,
-	.red            = {
-		.offset = 0,
-		.length = 1,
-		.msb_right = 0,
-	},
-	.green          = {
-		.offset = 0,
-		.length = 1,
-		.msb_right = 0,
-	},
-	.blue           = {
-		.offset = 0,
-		.length = 1,
-		.msb_right = 0,
-	},
-	.transp         = {
-		.offset = 0,
-		.length = 0,
-		.msb_right = 0,
-	},
-};
-#endif /* CONFIG_HID_PICOLCD_FB */
-
-/* Input device
- *
- * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys
- * and header for 4x4 key matrix. The built-in keys are part of the matrix.
- */
-static const unsigned short def_keymap[] = {
-	KEY_RESERVED,	/* none */
-	KEY_BACK,	/* col 4 + row 1 */
-	KEY_HOMEPAGE,	/* col 3 + row 1 */
-	KEY_RESERVED,	/* col 2 + row 1 */
-	KEY_RESERVED,	/* col 1 + row 1 */
-	KEY_SCROLLUP,	/* col 4 + row 2 */
-	KEY_OK,		/* col 3 + row 2 */
-	KEY_SCROLLDOWN,	/* col 2 + row 2 */
-	KEY_RESERVED,	/* col 1 + row 2 */
-	KEY_RESERVED,	/* col 4 + row 3 */
-	KEY_RESERVED,	/* col 3 + row 3 */
-	KEY_RESERVED,	/* col 2 + row 3 */
-	KEY_RESERVED,	/* col 1 + row 3 */
-	KEY_RESERVED,	/* col 4 + row 4 */
-	KEY_RESERVED,	/* col 3 + row 4 */
-	KEY_RESERVED,	/* col 2 + row 4 */
-	KEY_RESERVED,	/* col 1 + row 4 */
-};
-#define PICOLCD_KEYS ARRAY_SIZE(def_keymap)
-
-/* Description of in-progress IO operation, used for operations
- * that trigger response from device */
-struct picolcd_pending {
-	struct hid_report *out_report;
-	struct hid_report *in_report;
-	struct completion ready;
-	int raw_size;
-	u8 raw_data[64];
-};
-
-/* Per device data structure */
-struct picolcd_data {
-	struct hid_device *hdev;
-#ifdef CONFIG_DEBUG_FS
-	struct dentry *debug_reset;
-	struct dentry *debug_eeprom;
-	struct dentry *debug_flash;
-	struct mutex mutex_flash;
-	int addr_sz;
-#endif
-	u8 version[2];
-	unsigned short opmode_delay;
-	/* input stuff */
-	u8 pressed_keys[2];
-	struct input_dev *input_keys;
-	struct input_dev *input_cir;
-	unsigned short keycode[PICOLCD_KEYS];
-
-#ifdef CONFIG_HID_PICOLCD_FB
-	/* Framebuffer stuff */
-	u8 fb_update_rate;
-	u8 fb_bpp;
-	u8 fb_force;
-	u8 *fb_vbitmap;		/* local copy of what was sent to PicoLCD */
-	u8 *fb_bitmap;		/* framebuffer */
-	struct fb_info *fb_info;
-	struct fb_deferred_io fb_defio;
-#endif /* CONFIG_HID_PICOLCD_FB */
-#ifdef CONFIG_HID_PICOLCD_LCD
-	struct lcd_device *lcd;
-	u8 lcd_contrast;
-#endif /* CONFIG_HID_PICOLCD_LCD */
-#ifdef CONFIG_HID_PICOLCD_BACKLIGHT
-	struct backlight_device *backlight;
-	u8 lcd_brightness;
-	u8 lcd_power;
-#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
-#ifdef CONFIG_HID_PICOLCD_LEDS
-	/* LED stuff */
-	u8 led_state;
-	struct led_classdev *led[8];
-#endif /* CONFIG_HID_PICOLCD_LEDS */
-
-	/* Housekeeping stuff */
-	spinlock_t lock;
-	struct mutex mutex;
-	struct picolcd_pending *pending;
-	int status;
-#define PICOLCD_BOOTLOADER 1
-#define PICOLCD_FAILED 2
-#define PICOLCD_READY_FB 4
-};
-
-
-/* Find a given report */
-#define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT)
-#define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT)
-
-static struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir)
-{
-	struct list_head *feature_report_list = &hdev->report_enum[dir].report_list;
-	struct hid_report *report = NULL;
-
-	list_for_each_entry(report, feature_report_list, list) {
-		if (report->id == id)
-			return report;
-	}
-	hid_warn(hdev, "No report with id 0x%x found\n", id);
-	return NULL;
-}
-
-#ifdef CONFIG_DEBUG_FS
-static void picolcd_debug_out_report(struct picolcd_data *data,
-		struct hid_device *hdev, struct hid_report *report);
-#define usbhid_submit_report(a, b, c) \
-	do { \
-		picolcd_debug_out_report(hid_get_drvdata(a), a, b); \
-		usbhid_submit_report(a, b, c); \
-	} while (0)
-#endif
-
-/* Submit a report and wait for a reply from device - if device fades away
- * or does not respond in time, return NULL */
-static struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
-		int report_id, const u8 *raw_data, int size)
-{
-	struct picolcd_data *data = hid_get_drvdata(hdev);
-	struct picolcd_pending *work;
-	struct hid_report *report = picolcd_out_report(report_id, hdev);
-	unsigned long flags;
-	int i, j, k;
-
-	if (!report || !data)
-		return NULL;
-	if (data->status & PICOLCD_FAILED)
-		return NULL;
-	work = kzalloc(sizeof(*work), GFP_KERNEL);
-	if (!work)
-		return NULL;
-
-	init_completion(&work->ready);
-	work->out_report = report;
-	work->in_report  = NULL;
-	work->raw_size   = 0;
-
-	mutex_lock(&data->mutex);
-	spin_lock_irqsave(&data->lock, flags);
-	for (i = k = 0; i < report->maxfield; i++)
-		for (j = 0; j < report->field[i]->report_count; j++) {
-			hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
-			k++;
-		}
-	data->pending = work;
-	usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-	wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
-	spin_lock_irqsave(&data->lock, flags);
-	data->pending = NULL;
-	spin_unlock_irqrestore(&data->lock, flags);
-	mutex_unlock(&data->mutex);
-	return work;
-}
-
-#ifdef CONFIG_HID_PICOLCD_FB
-/* Send a given tile to PicoLCD */
-static int picolcd_fb_send_tile(struct hid_device *hdev, int chip, int tile)
-{
-	struct picolcd_data *data = hid_get_drvdata(hdev);
-	struct hid_report *report1 = picolcd_out_report(REPORT_LCD_CMD_DATA, hdev);
-	struct hid_report *report2 = picolcd_out_report(REPORT_LCD_DATA, hdev);
-	unsigned long flags;
-	u8 *tdata;
-	int i;
-
-	if (!report1 || report1->maxfield != 1 || !report2 || report2->maxfield != 1)
-		return -ENODEV;
-
-	spin_lock_irqsave(&data->lock, flags);
-	hid_set_field(report1->field[0],  0, chip << 2);
-	hid_set_field(report1->field[0],  1, 0x02);
-	hid_set_field(report1->field[0],  2, 0x00);
-	hid_set_field(report1->field[0],  3, 0x00);
-	hid_set_field(report1->field[0],  4, 0xb8 | tile);
-	hid_set_field(report1->field[0],  5, 0x00);
-	hid_set_field(report1->field[0],  6, 0x00);
-	hid_set_field(report1->field[0],  7, 0x40);
-	hid_set_field(report1->field[0],  8, 0x00);
-	hid_set_field(report1->field[0],  9, 0x00);
-	hid_set_field(report1->field[0], 10,   32);
-
-	hid_set_field(report2->field[0],  0, (chip << 2) | 0x01);
-	hid_set_field(report2->field[0],  1, 0x00);
-	hid_set_field(report2->field[0],  2, 0x00);
-	hid_set_field(report2->field[0],  3,   32);
-
-	tdata = data->fb_vbitmap + (tile * 4 + chip) * 64;
-	for (i = 0; i < 64; i++)
-		if (i < 32)
-			hid_set_field(report1->field[0], 11 + i, tdata[i]);
-		else
-			hid_set_field(report2->field[0], 4 + i - 32, tdata[i]);
-
-	usbhid_submit_report(data->hdev, report1, USB_DIR_OUT);
-	usbhid_submit_report(data->hdev, report2, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-	return 0;
-}
-
-/* Translate a single tile*/
-static int picolcd_fb_update_tile(u8 *vbitmap, const u8 *bitmap, int bpp,
-		int chip, int tile)
-{
-	int i, b, changed = 0;
-	u8 tdata[64];
-	u8 *vdata = vbitmap + (tile * 4 + chip) * 64;
-
-	if (bpp == 1) {
-		for (b = 7; b >= 0; b--) {
-			const u8 *bdata = bitmap + tile * 256 + chip * 8 + b * 32;
-			for (i = 0; i < 64; i++) {
-				tdata[i] <<= 1;
-				tdata[i] |= (bdata[i/8] >> (i % 8)) & 0x01;
-			}
-		}
-	} else if (bpp == 8) {
-		for (b = 7; b >= 0; b--) {
-			const u8 *bdata = bitmap + (tile * 256 + chip * 8 + b * 32) * 8;
-			for (i = 0; i < 64; i++) {
-				tdata[i] <<= 1;
-				tdata[i] |= (bdata[i] & 0x80) ? 0x01 : 0x00;
-			}
-		}
-	} else {
-		/* Oops, we should never get here! */
-		WARN_ON(1);
-		return 0;
-	}
-
-	for (i = 0; i < 64; i++)
-		if (tdata[i] != vdata[i]) {
-			changed = 1;
-			vdata[i] = tdata[i];
-		}
-	return changed;
-}
-
-/* Reconfigure LCD display */
-static int picolcd_fb_reset(struct picolcd_data *data, int clear)
-{
-	struct hid_report *report = picolcd_out_report(REPORT_LCD_CMD, data->hdev);
-	int i, j;
-	unsigned long flags;
-	static const u8 mapcmd[8] = { 0x00, 0x02, 0x00, 0x64, 0x3f, 0x00, 0x64, 0xc0 };
-
-	if (!report || report->maxfield != 1)
-		return -ENODEV;
-
-	spin_lock_irqsave(&data->lock, flags);
-	for (i = 0; i < 4; i++) {
-		for (j = 0; j < report->field[0]->maxusage; j++)
-			if (j == 0)
-				hid_set_field(report->field[0], j, i << 2);
-			else if (j < sizeof(mapcmd))
-				hid_set_field(report->field[0], j, mapcmd[j]);
-			else
-				hid_set_field(report->field[0], j, 0);
-		usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
-	}
-
-	data->status |= PICOLCD_READY_FB;
-	spin_unlock_irqrestore(&data->lock, flags);
-
-	if (data->fb_bitmap) {
-		if (clear) {
-			memset(data->fb_vbitmap, 0, PICOLCDFB_SIZE);
-			memset(data->fb_bitmap, 0, PICOLCDFB_SIZE*data->fb_bpp);
-		}
-		data->fb_force = 1;
-	}
-
-	/* schedule first output of framebuffer */
-	if (data->fb_info)
-		schedule_delayed_work(&data->fb_info->deferred_work, 0);
-
-	return 0;
-}
-
-/* Update fb_vbitmap from the screen_base and send changed tiles to device */
-static void picolcd_fb_update(struct picolcd_data *data)
-{
-	int chip, tile, n;
-	unsigned long flags;
-
-	if (!data)
-		return;
-
-	spin_lock_irqsave(&data->lock, flags);
-	if (!(data->status & PICOLCD_READY_FB)) {
-		spin_unlock_irqrestore(&data->lock, flags);
-		picolcd_fb_reset(data, 0);
-	} else {
-		spin_unlock_irqrestore(&data->lock, flags);
-	}
-
-	/*
-	 * Translate the framebuffer into the format needed by the PicoLCD.
-	 * See display layout above.
-	 * Do this one tile after the other and push those tiles that changed.
-	 *
-	 * Wait for our IO to complete as otherwise we might flood the queue!
-	 */
-	n = 0;
-	for (chip = 0; chip < 4; chip++)
-		for (tile = 0; tile < 8; tile++)
-			if (picolcd_fb_update_tile(data->fb_vbitmap,
-					data->fb_bitmap, data->fb_bpp, chip, tile) ||
-				data->fb_force) {
-				n += 2;
-				if (!data->fb_info->par)
-					return; /* device lost! */
-				if (n >= HID_OUTPUT_FIFO_SIZE / 2) {
-					usbhid_wait_io(data->hdev);
-					n = 0;
-				}
-				picolcd_fb_send_tile(data->hdev, chip, tile);
-			}
-	data->fb_force = false;
-	if (n)
-		usbhid_wait_io(data->hdev);
-}
-
-/* Stub to call the system default and update the image on the picoLCD */
-static void picolcd_fb_fillrect(struct fb_info *info,
-		const struct fb_fillrect *rect)
-{
-	if (!info->par)
-		return;
-	sys_fillrect(info, rect);
-
-	schedule_delayed_work(&info->deferred_work, 0);
-}
-
-/* Stub to call the system default and update the image on the picoLCD */
-static void picolcd_fb_copyarea(struct fb_info *info,
-		const struct fb_copyarea *area)
-{
-	if (!info->par)
-		return;
-	sys_copyarea(info, area);
-
-	schedule_delayed_work(&info->deferred_work, 0);
-}
-
-/* Stub to call the system default and update the image on the picoLCD */
-static void picolcd_fb_imageblit(struct fb_info *info, const struct fb_image *image)
-{
-	if (!info->par)
-		return;
-	sys_imageblit(info, image);
-
-	schedule_delayed_work(&info->deferred_work, 0);
-}
-
-/*
- * this is the slow path from userspace. they can seek and write to
- * the fb. it's inefficient to do anything less than a full screen draw
- */
-static ssize_t picolcd_fb_write(struct fb_info *info, const char __user *buf,
-		size_t count, loff_t *ppos)
-{
-	ssize_t ret;
-	if (!info->par)
-		return -ENODEV;
-	ret = fb_sys_write(info, buf, count, ppos);
-	if (ret >= 0)
-		schedule_delayed_work(&info->deferred_work, 0);
-	return ret;
-}
-
-static int picolcd_fb_blank(int blank, struct fb_info *info)
-{
-	if (!info->par)
-		return -ENODEV;
-	/* We let fb notification do this for us via lcd/backlight device */
-	return 0;
-}
-
-static void picolcd_fb_destroy(struct fb_info *info)
-{
-	struct picolcd_data *data = info->par;
-	u32 *ref_cnt = info->pseudo_palette;
-	int may_release;
-
-	info->par = NULL;
-	if (data)
-		data->fb_info = NULL;
-	fb_deferred_io_cleanup(info);
-
-	ref_cnt--;
-	mutex_lock(&info->lock);
-	(*ref_cnt)--;
-	may_release = !*ref_cnt;
-	mutex_unlock(&info->lock);
-	if (may_release) {
-		vfree((u8 *)info->fix.smem_start);
-		framebuffer_release(info);
-	}
-}
-
-static int picolcd_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	__u32 bpp      = var->bits_per_pixel;
-	__u32 activate = var->activate;
-
-	/* only allow 1/8 bit depth (8-bit is grayscale) */
-	*var = picolcdfb_var;
-	var->activate = activate;
-	if (bpp >= 8) {
-		var->bits_per_pixel = 8;
-		var->red.length     = 8;
-		var->green.length   = 8;
-		var->blue.length    = 8;
-	} else {
-		var->bits_per_pixel = 1;
-		var->red.length     = 1;
-		var->green.length   = 1;
-		var->blue.length    = 1;
-	}
-	return 0;
-}
-
-static int picolcd_set_par(struct fb_info *info)
-{
-	struct picolcd_data *data = info->par;
-	u8 *tmp_fb, *o_fb;
-	if (!data)
-		return -ENODEV;
-	if (info->var.bits_per_pixel == data->fb_bpp)
-		return 0;
-	/* switch between 1/8 bit depths */
-	if (info->var.bits_per_pixel != 1 && info->var.bits_per_pixel != 8)
-		return -EINVAL;
-
-	o_fb   = data->fb_bitmap;
-	tmp_fb = kmalloc(PICOLCDFB_SIZE*info->var.bits_per_pixel, GFP_KERNEL);
-	if (!tmp_fb)
-		return -ENOMEM;
-
-	/* translate FB content to new bits-per-pixel */
-	if (info->var.bits_per_pixel == 1) {
-		int i, b;
-		for (i = 0; i < PICOLCDFB_SIZE; i++) {
-			u8 p = 0;
-			for (b = 0; b < 8; b++) {
-				p <<= 1;
-				p |= o_fb[i*8+b] ? 0x01 : 0x00;
-			}
-			tmp_fb[i] = p;
-		}
-		memcpy(o_fb, tmp_fb, PICOLCDFB_SIZE);
-		info->fix.visual = FB_VISUAL_MONO01;
-		info->fix.line_length = PICOLCDFB_WIDTH / 8;
-	} else {
-		int i;
-		memcpy(tmp_fb, o_fb, PICOLCDFB_SIZE);
-		for (i = 0; i < PICOLCDFB_SIZE * 8; i++)
-			o_fb[i] = tmp_fb[i/8] & (0x01 << (7 - i % 8)) ? 0xff : 0x00;
-		info->fix.visual = FB_VISUAL_DIRECTCOLOR;
-		info->fix.line_length = PICOLCDFB_WIDTH;
-	}
-
-	kfree(tmp_fb);
-	data->fb_bpp      = info->var.bits_per_pixel;
-	return 0;
-}
-
-/* Do refcounting on our FB and cleanup per worker if FB is
- * closed after unplug of our device
- * (fb_release holds info->lock and still touches info after
- *  we return so we can't release it immediately.
- */
-struct picolcd_fb_cleanup_item {
-	struct fb_info *info;
-	struct picolcd_fb_cleanup_item *next;
-};
-static struct picolcd_fb_cleanup_item *fb_pending;
-static DEFINE_SPINLOCK(fb_pending_lock);
-
-static void picolcd_fb_do_cleanup(struct work_struct *data)
-{
-	struct picolcd_fb_cleanup_item *item;
-	unsigned long flags;
-
-	do {
-		spin_lock_irqsave(&fb_pending_lock, flags);
-		item = fb_pending;
-		fb_pending = item ? item->next : NULL;
-		spin_unlock_irqrestore(&fb_pending_lock, flags);
-
-		if (item) {
-			u8 *fb = (u8 *)item->info->fix.smem_start;
-			/* make sure we do not race against fb core when
-			 * releasing */
-			mutex_lock(&item->info->lock);
-			mutex_unlock(&item->info->lock);
-			framebuffer_release(item->info);
-			vfree(fb);
-		}
-	} while (item);
-}
-
-static DECLARE_WORK(picolcd_fb_cleanup, picolcd_fb_do_cleanup);
-
-static int picolcd_fb_open(struct fb_info *info, int u)
-{
-	u32 *ref_cnt = info->pseudo_palette;
-	ref_cnt--;
-
-	(*ref_cnt)++;
-	return 0;
-}
-
-static int picolcd_fb_release(struct fb_info *info, int u)
-{
-	u32 *ref_cnt = info->pseudo_palette;
-	ref_cnt--;
-
-	(*ref_cnt)++;
-	if (!*ref_cnt) {
-		unsigned long flags;
-		struct picolcd_fb_cleanup_item *item = (struct picolcd_fb_cleanup_item *)ref_cnt;
-		item--;
-		spin_lock_irqsave(&fb_pending_lock, flags);
-		item->next = fb_pending;
-		fb_pending = item;
-		spin_unlock_irqrestore(&fb_pending_lock, flags);
-		schedule_work(&picolcd_fb_cleanup);
-	}
-	return 0;
-}
-
-/* Note this can't be const because of struct fb_info definition */
-static struct fb_ops picolcdfb_ops = {
-	.owner        = THIS_MODULE,
-	.fb_destroy   = picolcd_fb_destroy,
-	.fb_open      = picolcd_fb_open,
-	.fb_release   = picolcd_fb_release,
-	.fb_read      = fb_sys_read,
-	.fb_write     = picolcd_fb_write,
-	.fb_blank     = picolcd_fb_blank,
-	.fb_fillrect  = picolcd_fb_fillrect,
-	.fb_copyarea  = picolcd_fb_copyarea,
-	.fb_imageblit = picolcd_fb_imageblit,
-	.fb_check_var = picolcd_fb_check_var,
-	.fb_set_par   = picolcd_set_par,
-};
-
-
-/* Callback from deferred IO workqueue */
-static void picolcd_fb_deferred_io(struct fb_info *info, struct list_head *pagelist)
-{
-	picolcd_fb_update(info->par);
-}
-
-static const struct fb_deferred_io picolcd_fb_defio = {
-	.delay = HZ / PICOLCDFB_UPDATE_RATE_DEFAULT,
-	.deferred_io = picolcd_fb_deferred_io,
-};
-
-
-/*
- * The "fb_update_rate" sysfs attribute
- */
-static ssize_t picolcd_fb_update_rate_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct picolcd_data *data = dev_get_drvdata(dev);
-	unsigned i, fb_update_rate = data->fb_update_rate;
-	size_t ret = 0;
-
-	for (i = 1; i <= PICOLCDFB_UPDATE_RATE_LIMIT; i++)
-		if (ret >= PAGE_SIZE)
-			break;
-		else if (i == fb_update_rate)
-			ret += snprintf(buf+ret, PAGE_SIZE-ret, "[%u] ", i);
-		else
-			ret += snprintf(buf+ret, PAGE_SIZE-ret, "%u ", i);
-	if (ret > 0)
-		buf[min(ret, (size_t)PAGE_SIZE)-1] = '\n';
-	return ret;
-}
-
-static ssize_t picolcd_fb_update_rate_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct picolcd_data *data = dev_get_drvdata(dev);
-	int i;
-	unsigned u;
-
-	if (count < 1 || count > 10)
-		return -EINVAL;
-
-	i = sscanf(buf, "%u", &u);
-	if (i != 1)
-		return -EINVAL;
-
-	if (u > PICOLCDFB_UPDATE_RATE_LIMIT)
-		return -ERANGE;
-	else if (u == 0)
-		u = PICOLCDFB_UPDATE_RATE_DEFAULT;
-
-	data->fb_update_rate = u;
-	data->fb_defio.delay = HZ / data->fb_update_rate;
-	return count;
-}
-
-static DEVICE_ATTR(fb_update_rate, 0666, picolcd_fb_update_rate_show,
-		picolcd_fb_update_rate_store);
-
-/* initialize Framebuffer device */
-static int picolcd_init_framebuffer(struct picolcd_data *data)
-{
-	struct device *dev = &data->hdev->dev;
-	struct fb_info *info = NULL;
-	int i, error = -ENOMEM;
-	u8 *fb_vbitmap = NULL;
-	u8 *fb_bitmap  = NULL;
-	u32 *palette;
-
-	fb_bitmap = vmalloc(PICOLCDFB_SIZE*8);
-	if (fb_bitmap == NULL) {
-		dev_err(dev, "can't get a free page for framebuffer\n");
-		goto err_nomem;
-	}
-
-	fb_vbitmap = kmalloc(PICOLCDFB_SIZE, GFP_KERNEL);
-	if (fb_vbitmap == NULL) {
-		dev_err(dev, "can't alloc vbitmap image buffer\n");
-		goto err_nomem;
-	}
-
-	data->fb_update_rate = PICOLCDFB_UPDATE_RATE_DEFAULT;
-	data->fb_defio = picolcd_fb_defio;
-	/* The extra memory is:
-	 * - struct picolcd_fb_cleanup_item
-	 * - u32 for ref_count
-	 * - 256*u32 for pseudo_palette
-	 */
-	info = framebuffer_alloc(257 * sizeof(u32) + sizeof(struct picolcd_fb_cleanup_item), dev);
-	if (info == NULL) {
-		dev_err(dev, "failed to allocate a framebuffer\n");
-		goto err_nomem;
-	}
-
-	palette  = info->par + sizeof(struct picolcd_fb_cleanup_item);
-	*palette = 1;
-	palette++;
-	for (i = 0; i < 256; i++)
-		palette[i] = i > 0 && i < 16 ? 0xff : 0;
-	info->pseudo_palette = palette;
-	info->fbdefio = &data->fb_defio;
-	info->screen_base = (char __force __iomem *)fb_bitmap;
-	info->fbops = &picolcdfb_ops;
-	info->var = picolcdfb_var;
-	info->fix = picolcdfb_fix;
-	info->fix.smem_len   = PICOLCDFB_SIZE*8;
-	info->fix.smem_start = (unsigned long)fb_bitmap;
-	info->par = data;
-	info->flags = FBINFO_FLAG_DEFAULT;
-
-	data->fb_vbitmap = fb_vbitmap;
-	data->fb_bitmap  = fb_bitmap;
-	data->fb_bpp     = picolcdfb_var.bits_per_pixel;
-	error = picolcd_fb_reset(data, 1);
-	if (error) {
-		dev_err(dev, "failed to configure display\n");
-		goto err_cleanup;
-	}
-	error = device_create_file(dev, &dev_attr_fb_update_rate);
-	if (error) {
-		dev_err(dev, "failed to create sysfs attributes\n");
-		goto err_cleanup;
-	}
-	fb_deferred_io_init(info);
-	data->fb_info    = info;
-	error = register_framebuffer(info);
-	if (error) {
-		dev_err(dev, "failed to register framebuffer\n");
-		goto err_sysfs;
-	}
-	/* schedule first output of framebuffer */
-	data->fb_force = 1;
-	schedule_delayed_work(&info->deferred_work, 0);
-	return 0;
-
-err_sysfs:
-	fb_deferred_io_cleanup(info);
-	device_remove_file(dev, &dev_attr_fb_update_rate);
-err_cleanup:
-	data->fb_vbitmap = NULL;
-	data->fb_bitmap  = NULL;
-	data->fb_bpp     = 0;
-	data->fb_info    = NULL;
-
-err_nomem:
-	framebuffer_release(info);
-	vfree(fb_bitmap);
-	kfree(fb_vbitmap);
-	return error;
-}
-
-static void picolcd_exit_framebuffer(struct picolcd_data *data)
-{
-	struct fb_info *info = data->fb_info;
-	u8 *fb_vbitmap = data->fb_vbitmap;
-
-	if (!info)
-		return;
-
-	info->par = NULL;
-	device_remove_file(&data->hdev->dev, &dev_attr_fb_update_rate);
-	unregister_framebuffer(info);
-	data->fb_vbitmap = NULL;
-	data->fb_bitmap  = NULL;
-	data->fb_bpp     = 0;
-	data->fb_info    = NULL;
-	kfree(fb_vbitmap);
-}
-
-#define picolcd_fbinfo(d) ((d)->fb_info)
-#else
-static inline int picolcd_fb_reset(struct picolcd_data *data, int clear)
-{
-	return 0;
-}
-static inline int picolcd_init_framebuffer(struct picolcd_data *data)
-{
-	return 0;
-}
-static inline void picolcd_exit_framebuffer(struct picolcd_data *data)
-{
-}
-#define picolcd_fbinfo(d) NULL
-#endif /* CONFIG_HID_PICOLCD_FB */
-
-#ifdef CONFIG_HID_PICOLCD_BACKLIGHT
-/*
- * backlight class device
- */
-static int picolcd_get_brightness(struct backlight_device *bdev)
-{
-	struct picolcd_data *data = bl_get_data(bdev);
-	return data->lcd_brightness;
-}
-
-static int picolcd_set_brightness(struct backlight_device *bdev)
-{
-	struct picolcd_data *data = bl_get_data(bdev);
-	struct hid_report *report = picolcd_out_report(REPORT_BRIGHTNESS, data->hdev);
-	unsigned long flags;
-
-	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
-		return -ENODEV;
-
-	data->lcd_brightness = bdev->props.brightness & 0x0ff;
-	data->lcd_power      = bdev->props.power;
-	spin_lock_irqsave(&data->lock, flags);
-	hid_set_field(report->field[0], 0, data->lcd_power == FB_BLANK_UNBLANK ? data->lcd_brightness : 0);
-	usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-	return 0;
-}
-
-static int picolcd_check_bl_fb(struct backlight_device *bdev, struct fb_info *fb)
-{
-	return fb && fb == picolcd_fbinfo((struct picolcd_data *)bl_get_data(bdev));
-}
-
-static const struct backlight_ops picolcd_blops = {
-	.update_status  = picolcd_set_brightness,
-	.get_brightness = picolcd_get_brightness,
-	.check_fb       = picolcd_check_bl_fb,
-};
-
-static int picolcd_init_backlight(struct picolcd_data *data, struct hid_report *report)
-{
-	struct device *dev = &data->hdev->dev;
-	struct backlight_device *bdev;
-	struct backlight_properties props;
-	if (!report)
-		return -ENODEV;
-	if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
-			report->field[0]->report_size != 8) {
-		dev_err(dev, "unsupported BRIGHTNESS report");
-		return -EINVAL;
-	}
-
-	memset(&props, 0, sizeof(props));
-	props.type = BACKLIGHT_RAW;
-	props.max_brightness = 0xff;
-	bdev = backlight_device_register(dev_name(dev), dev, data,
-			&picolcd_blops, &props);
-	if (IS_ERR(bdev)) {
-		dev_err(dev, "failed to register backlight\n");
-		return PTR_ERR(bdev);
-	}
-	bdev->props.brightness     = 0xff;
-	data->lcd_brightness       = 0xff;
-	data->backlight            = bdev;
-	picolcd_set_brightness(bdev);
-	return 0;
-}
-
-static void picolcd_exit_backlight(struct picolcd_data *data)
-{
-	struct backlight_device *bdev = data->backlight;
-
-	data->backlight = NULL;
-	if (bdev)
-		backlight_device_unregister(bdev);
-}
-
-static inline int picolcd_resume_backlight(struct picolcd_data *data)
-{
-	if (!data->backlight)
-		return 0;
-	return picolcd_set_brightness(data->backlight);
-}
-
-#ifdef CONFIG_PM
-static void picolcd_suspend_backlight(struct picolcd_data *data)
-{
-	int bl_power = data->lcd_power;
-	if (!data->backlight)
-		return;
-
-	data->backlight->props.power = FB_BLANK_POWERDOWN;
-	picolcd_set_brightness(data->backlight);
-	data->lcd_power = data->backlight->props.power = bl_power;
-}
-#endif /* CONFIG_PM */
-#else
-static inline int picolcd_init_backlight(struct picolcd_data *data,
-		struct hid_report *report)
-{
-	return 0;
-}
-static inline void picolcd_exit_backlight(struct picolcd_data *data)
-{
-}
-static inline int picolcd_resume_backlight(struct picolcd_data *data)
-{
-	return 0;
-}
-static inline void picolcd_suspend_backlight(struct picolcd_data *data)
-{
-}
-#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
-
-#ifdef CONFIG_HID_PICOLCD_LCD
-/*
- * lcd class device
- */
-static int picolcd_get_contrast(struct lcd_device *ldev)
-{
-	struct picolcd_data *data = lcd_get_data(ldev);
-	return data->lcd_contrast;
-}
-
-static int picolcd_set_contrast(struct lcd_device *ldev, int contrast)
-{
-	struct picolcd_data *data = lcd_get_data(ldev);
-	struct hid_report *report = picolcd_out_report(REPORT_CONTRAST, data->hdev);
-	unsigned long flags;
-
-	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
-		return -ENODEV;
-
-	data->lcd_contrast = contrast & 0x0ff;
-	spin_lock_irqsave(&data->lock, flags);
-	hid_set_field(report->field[0], 0, data->lcd_contrast);
-	usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-	return 0;
-}
-
-static int picolcd_check_lcd_fb(struct lcd_device *ldev, struct fb_info *fb)
-{
-	return fb && fb == picolcd_fbinfo((struct picolcd_data *)lcd_get_data(ldev));
-}
-
-static struct lcd_ops picolcd_lcdops = {
-	.get_contrast   = picolcd_get_contrast,
-	.set_contrast   = picolcd_set_contrast,
-	.check_fb       = picolcd_check_lcd_fb,
-};
-
-static int picolcd_init_lcd(struct picolcd_data *data, struct hid_report *report)
-{
-	struct device *dev = &data->hdev->dev;
-	struct lcd_device *ldev;
-
-	if (!report)
-		return -ENODEV;
-	if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
-			report->field[0]->report_size != 8) {
-		dev_err(dev, "unsupported CONTRAST report");
-		return -EINVAL;
-	}
-
-	ldev = lcd_device_register(dev_name(dev), dev, data, &picolcd_lcdops);
-	if (IS_ERR(ldev)) {
-		dev_err(dev, "failed to register LCD\n");
-		return PTR_ERR(ldev);
-	}
-	ldev->props.max_contrast = 0x0ff;
-	data->lcd_contrast = 0xe5;
-	data->lcd = ldev;
-	picolcd_set_contrast(ldev, 0xe5);
-	return 0;
-}
-
-static void picolcd_exit_lcd(struct picolcd_data *data)
-{
-	struct lcd_device *ldev = data->lcd;
-
-	data->lcd = NULL;
-	if (ldev)
-		lcd_device_unregister(ldev);
-}
-
-static inline int picolcd_resume_lcd(struct picolcd_data *data)
-{
-	if (!data->lcd)
-		return 0;
-	return picolcd_set_contrast(data->lcd, data->lcd_contrast);
-}
-#else
-static inline int picolcd_init_lcd(struct picolcd_data *data,
-		struct hid_report *report)
-{
-	return 0;
-}
-static inline void picolcd_exit_lcd(struct picolcd_data *data)
-{
-}
-static inline int picolcd_resume_lcd(struct picolcd_data *data)
-{
-	return 0;
-}
-#endif /* CONFIG_HID_PICOLCD_LCD */
-
-#ifdef CONFIG_HID_PICOLCD_LEDS
-/**
- * LED class device
- */
-static void picolcd_leds_set(struct picolcd_data *data)
-{
-	struct hid_report *report;
-	unsigned long flags;
-
-	if (!data->led[0])
-		return;
-	report = picolcd_out_report(REPORT_LED_STATE, data->hdev);
-	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
-		return;
-
-	spin_lock_irqsave(&data->lock, flags);
-	hid_set_field(report->field[0], 0, data->led_state);
-	usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-}
-
-static void picolcd_led_set_brightness(struct led_classdev *led_cdev,
-			enum led_brightness value)
-{
-	struct device *dev;
-	struct hid_device *hdev;
-	struct picolcd_data *data;
-	int i, state = 0;
-
-	dev  = led_cdev->dev->parent;
-	hdev = container_of(dev, struct hid_device, dev);
-	data = hid_get_drvdata(hdev);
-	for (i = 0; i < 8; i++) {
-		if (led_cdev != data->led[i])
-			continue;
-		state = (data->led_state >> i) & 1;
-		if (value == LED_OFF && state) {
-			data->led_state &= ~(1 << i);
-			picolcd_leds_set(data);
-		} else if (value != LED_OFF && !state) {
-			data->led_state |= 1 << i;
-			picolcd_leds_set(data);
-		}
-		break;
-	}
-}
-
-static enum led_brightness picolcd_led_get_brightness(struct led_classdev *led_cdev)
-{
-	struct device *dev;
-	struct hid_device *hdev;
-	struct picolcd_data *data;
-	int i, value = 0;
-
-	dev  = led_cdev->dev->parent;
-	hdev = container_of(dev, struct hid_device, dev);
-	data = hid_get_drvdata(hdev);
-	for (i = 0; i < 8; i++)
-		if (led_cdev == data->led[i]) {
-			value = (data->led_state >> i) & 1;
-			break;
-		}
-	return value ? LED_FULL : LED_OFF;
-}
-
-static int picolcd_init_leds(struct picolcd_data *data, struct hid_report *report)
-{
-	struct device *dev = &data->hdev->dev;
-	struct led_classdev *led;
-	size_t name_sz = strlen(dev_name(dev)) + 8;
-	char *name;
-	int i, ret = 0;
-
-	if (!report)
-		return -ENODEV;
-	if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
-			report->field[0]->report_size != 8) {
-		dev_err(dev, "unsupported LED_STATE report");
-		return -EINVAL;
-	}
-
-	for (i = 0; i < 8; i++) {
-		led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL);
-		if (!led) {
-			dev_err(dev, "can't allocate memory for LED %d\n", i);
-			ret = -ENOMEM;
-			goto err;
-		}
-		name = (void *)(&led[1]);
-		snprintf(name, name_sz, "%s::GPO%d", dev_name(dev), i);
-		led->name = name;
-		led->brightness = 0;
-		led->max_brightness = 1;
-		led->brightness_get = picolcd_led_get_brightness;
-		led->brightness_set = picolcd_led_set_brightness;
-
-		data->led[i] = led;
-		ret = led_classdev_register(dev, data->led[i]);
-		if (ret) {
-			data->led[i] = NULL;
-			kfree(led);
-			dev_err(dev, "can't register LED %d\n", i);
-			goto err;
-		}
-	}
-	return 0;
-err:
-	for (i = 0; i < 8; i++)
-		if (data->led[i]) {
-			led = data->led[i];
-			data->led[i] = NULL;
-			led_classdev_unregister(led);
-			kfree(led);
-		}
-	return ret;
-}
-
-static void picolcd_exit_leds(struct picolcd_data *data)
-{
-	struct led_classdev *led;
-	int i;
-
-	for (i = 0; i < 8; i++) {
-		led = data->led[i];
-		data->led[i] = NULL;
-		if (!led)
-			continue;
-		led_classdev_unregister(led);
-		kfree(led);
-	}
-}
-
-#else
-static inline int picolcd_init_leds(struct picolcd_data *data,
-		struct hid_report *report)
-{
-	return 0;
-}
-static inline void picolcd_exit_leds(struct picolcd_data *data)
-{
-}
-static inline int picolcd_leds_set(struct picolcd_data *data)
-{
-	return 0;
-}
-#endif /* CONFIG_HID_PICOLCD_LEDS */
-
-/*
- * input class device
- */
-static int picolcd_raw_keypad(struct picolcd_data *data,
-		struct hid_report *report, u8 *raw_data, int size)
-{
-	/*
-	 * Keypad event
-	 * First and second data bytes list currently pressed keys,
-	 * 0x00 means no key and at most 2 keys may be pressed at same time
-	 */
-	int i, j;
-
-	/* determine newly pressed keys */
-	for (i = 0; i < size; i++) {
-		unsigned int key_code;
-		if (raw_data[i] == 0)
-			continue;
-		for (j = 0; j < sizeof(data->pressed_keys); j++)
-			if (data->pressed_keys[j] == raw_data[i])
-				goto key_already_down;
-		for (j = 0; j < sizeof(data->pressed_keys); j++)
-			if (data->pressed_keys[j] == 0) {
-				data->pressed_keys[j] = raw_data[i];
-				break;
-			}
-		input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]);
-		if (raw_data[i] < PICOLCD_KEYS)
-			key_code = data->keycode[raw_data[i]];
-		else
-			key_code = KEY_UNKNOWN;
-		if (key_code != KEY_UNKNOWN) {
-			dbg_hid(PICOLCD_NAME " got key press for %u:%d",
-					raw_data[i], key_code);
-			input_report_key(data->input_keys, key_code, 1);
-		}
-		input_sync(data->input_keys);
-key_already_down:
-		continue;
-	}
-
-	/* determine newly released keys */
-	for (j = 0; j < sizeof(data->pressed_keys); j++) {
-		unsigned int key_code;
-		if (data->pressed_keys[j] == 0)
-			continue;
-		for (i = 0; i < size; i++)
-			if (data->pressed_keys[j] == raw_data[i])
-				goto key_still_down;
-		input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]);
-		if (data->pressed_keys[j] < PICOLCD_KEYS)
-			key_code = data->keycode[data->pressed_keys[j]];
-		else
-			key_code = KEY_UNKNOWN;
-		if (key_code != KEY_UNKNOWN) {
-			dbg_hid(PICOLCD_NAME " got key release for %u:%d",
-					data->pressed_keys[j], key_code);
-			input_report_key(data->input_keys, key_code, 0);
-		}
-		input_sync(data->input_keys);
-		data->pressed_keys[j] = 0;
-key_still_down:
-		continue;
-	}
-	return 1;
-}
-
-static int picolcd_raw_cir(struct picolcd_data *data,
-		struct hid_report *report, u8 *raw_data, int size)
-{
-	/* Need understanding of CIR data format to implement ... */
-	return 1;
-}
-
-static int picolcd_check_version(struct hid_device *hdev)
-{
-	struct picolcd_data *data = hid_get_drvdata(hdev);
-	struct picolcd_pending *verinfo;
-	int ret = 0;
-
-	if (!data)
-		return -ENODEV;
-
-	verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0);
-	if (!verinfo) {
-		hid_err(hdev, "no version response from PicoLCD\n");
-		return -ENODEV;
-	}
-
-	if (verinfo->raw_size == 2) {
-		data->version[0] = verinfo->raw_data[1];
-		data->version[1] = verinfo->raw_data[0];
-		if (data->status & PICOLCD_BOOTLOADER) {
-			hid_info(hdev, "PicoLCD, bootloader version %d.%d\n",
-				 verinfo->raw_data[1], verinfo->raw_data[0]);
-		} else {
-			hid_info(hdev, "PicoLCD, firmware version %d.%d\n",
-				 verinfo->raw_data[1], verinfo->raw_data[0]);
-		}
-	} else {
-		hid_err(hdev, "confused, got unexpected version response from PicoLCD\n");
-		ret = -EINVAL;
-	}
-	kfree(verinfo);
-	return ret;
-}
-
-/*
- * Reset our device and wait for answer to VERSION request
- */
-static int picolcd_reset(struct hid_device *hdev)
-{
-	struct picolcd_data *data = hid_get_drvdata(hdev);
-	struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
-	unsigned long flags;
-	int error;
-
-	if (!data || !report || report->maxfield != 1)
-		return -ENODEV;
-
-	spin_lock_irqsave(&data->lock, flags);
-	if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
-		data->status |= PICOLCD_BOOTLOADER;
-
-	/* perform the reset */
-	hid_set_field(report->field[0], 0, 1);
-	usbhid_submit_report(hdev, report, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-
-	error = picolcd_check_version(hdev);
-	if (error)
-		return error;
-
-	picolcd_resume_lcd(data);
-	picolcd_resume_backlight(data);
-#ifdef CONFIG_HID_PICOLCD_FB
-	if (data->fb_info)
-		schedule_delayed_work(&data->fb_info->deferred_work, 0);
-#endif /* CONFIG_HID_PICOLCD_FB */
-
-	picolcd_leds_set(data);
-	return 0;
-}
-
-/*
- * The "operation_mode" sysfs attribute
- */
-static ssize_t picolcd_operation_mode_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct picolcd_data *data = dev_get_drvdata(dev);
-
-	if (data->status & PICOLCD_BOOTLOADER)
-		return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n");
-	else
-		return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n");
-}
-
-static ssize_t picolcd_operation_mode_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct picolcd_data *data = dev_get_drvdata(dev);
-	struct hid_report *report = NULL;
-	size_t cnt = count;
-	int timeout = data->opmode_delay;
-	unsigned long flags;
-
-	if (cnt >= 3 && strncmp("lcd", buf, 3) == 0) {
-		if (data->status & PICOLCD_BOOTLOADER)
-			report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
-		buf += 3;
-		cnt -= 3;
-	} else if (cnt >= 10 && strncmp("bootloader", buf, 10) == 0) {
-		if (!(data->status & PICOLCD_BOOTLOADER))
-			report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
-		buf += 10;
-		cnt -= 10;
-	}
-	if (!report)
-		return -EINVAL;
-
-	while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r'))
-		cnt--;
-	if (cnt != 0)
-		return -EINVAL;
-
-	spin_lock_irqsave(&data->lock, flags);
-	hid_set_field(report->field[0], 0, timeout & 0xff);
-	hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
-	usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
-	spin_unlock_irqrestore(&data->lock, flags);
-	return count;
-}
-
-static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show,
-		picolcd_operation_mode_store);
-
-/*
- * The "operation_mode_delay" sysfs attribute
- */
-static ssize_t picolcd_operation_mode_delay_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct picolcd_data *data = dev_get_drvdata(dev);
-
-	return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay);
-}
-
-static ssize_t picolcd_operation_mode_delay_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct picolcd_data *data = dev_get_drvdata(dev);
-	unsigned u;
-	if (sscanf(buf, "%u", &u) != 1)
-		return -EINVAL;
-	if (u > 30000)
-		return -EINVAL;
-	else
-		data->opmode_delay = u;
-	return count;
-}
-
-static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show,
-		picolcd_operation_mode_delay_store);
-
-
-#ifdef CONFIG_DEBUG_FS
-/*
- * The "reset" file
- */
-static int picolcd_debug_reset_show(struct seq_file *f, void *p)
-{
-	if (picolcd_fbinfo((struct picolcd_data *)f->private))
-		seq_printf(f, "all fb\n");
-	else
-		seq_printf(f, "all\n");
-	return 0;
-}
-
-static int picolcd_debug_reset_open(struct inode *inode, struct file *f)
-{
-	return single_open(f, picolcd_debug_reset_show, inode->i_private);
-}
-
-static ssize_t picolcd_debug_reset_write(struct file *f, const char __user *user_buf,
-		size_t count, loff_t *ppos)
-{
-	struct picolcd_data *data = ((struct seq_file *)f->private_data)->private;
-	char buf[32];
-	size_t cnt = min(count, sizeof(buf)-1);
-	if (copy_from_user(buf, user_buf, cnt))
-		return -EFAULT;
-
-	while (cnt > 0 && (buf[cnt-1] == ' ' || buf[cnt-1] == '\n'))
-		cnt--;
-	buf[cnt] = '\0';
-	if (strcmp(buf, "all") == 0) {
-		picolcd_reset(data->hdev);
-		picolcd_fb_reset(data, 1);
-	} else if (strcmp(buf, "fb") == 0) {
-		picolcd_fb_reset(data, 1);
-	} else {
-		return -EINVAL;
-	}
-	return count;
-}
-
-static const struct file_operations picolcd_debug_reset_fops = {
-	.owner    = THIS_MODULE,
-	.open     = picolcd_debug_reset_open,
-	.read     = seq_read,
-	.llseek   = seq_lseek,
-	.write    = picolcd_debug_reset_write,
-	.release  = single_release,
-};
-
-/*
- * The "eeprom" file
- */
-static ssize_t picolcd_debug_eeprom_read(struct file *f, char __user *u,
-		size_t s, loff_t *off)
-{
-	struct picolcd_data *data = f->private_data;
-	struct picolcd_pending *resp;
-	u8 raw_data[3];
-	ssize_t ret = -EIO;
-
-	if (s == 0)
-		return -EINVAL;
-	if (*off > 0x0ff)
-		return 0;
-
-	/* prepare buffer with info about what we want to read (addr & len) */
-	raw_data[0] = *off & 0xff;
-	raw_data[1] = (*off >> 8) & 0xff;
-	raw_data[2] = s < 20 ? s : 20;
-	if (*off + raw_data[2] > 0xff)
-		raw_data[2] = 0x100 - *off;
-	resp = picolcd_send_and_wait(data->hdev, REPORT_EE_READ, raw_data,
-			sizeof(raw_data));
-	if (!resp)
-		return -EIO;
-
-	if (resp->in_report && resp->in_report->id == REPORT_EE_DATA) {
-		/* successful read :) */
-		ret = resp->raw_data[2];
-		if (ret > s)
-			ret = s;
-		if (copy_to_user(u, resp->raw_data+3, ret))
-			ret = -EFAULT;
-		else
-			*off += ret;
-	} /* anything else is some kind of IO error */
-
-	kfree(resp);
-	return ret;
-}
-
-static ssize_t picolcd_debug_eeprom_write(struct file *f, const char __user *u,
-		size_t s, loff_t *off)
-{
-	struct picolcd_data *data = f->private_data;
-	struct picolcd_pending *resp;
-	ssize_t ret = -EIO;
-	u8 raw_data[23];
-
-	if (s == 0)
-		return -EINVAL;
-	if (*off > 0x0ff)
-		return -ENOSPC;
-
-	memset(raw_data, 0, sizeof(raw_data));
-	raw_data[0] = *off & 0xff;
-	raw_data[1] = (*off >> 8) & 0xff;
-	raw_data[2] = min((size_t)20, s);
-	if (*off + raw_data[2] > 0xff)
-		raw_data[2] = 0x100 - *off;
-
-	if (copy_from_user(raw_data+3, u, min((u8)20, raw_data[2])))
-		return -EFAULT;
-	resp = picolcd_send_and_wait(data->hdev, REPORT_EE_WRITE, raw_data,
-			sizeof(raw_data));
-
-	if (!resp)
-		return -EIO;
-
-	if (resp->in_report && resp->in_report->id == REPORT_EE_DATA) {
-		/* check if written data matches */
-		if (memcmp(raw_data, resp->raw_data, 3+raw_data[2]) == 0) {
-			*off += raw_data[2];
-			ret = raw_data[2];
-		}
-	}
-	kfree(resp);
-	return ret;
-}
-
-/*
- * Notes:
- * - read/write happens in chunks of at most 20 bytes, it's up to userspace
- *   to loop in order to get more data.
- * - on write errors on otherwise correct write request the bytes
- *   that should have been written are in undefined state.
- */
-static const struct file_operations picolcd_debug_eeprom_fops = {
-	.owner    = THIS_MODULE,
-	.open     = simple_open,
-	.read     = picolcd_debug_eeprom_read,
-	.write    = picolcd_debug_eeprom_write,
-	.llseek   = generic_file_llseek,
-};
-
-/*
- * The "flash" file
- */
-/* record a flash address to buf (bounds check to be done by caller) */
-static int _picolcd_flash_setaddr(struct picolcd_data *data, u8 *buf, long off)
-{
-	buf[0] = off & 0xff;
-	buf[1] = (off >> 8) & 0xff;
-	if (data->addr_sz == 3)
-		buf[2] = (off >> 16) & 0xff;
-	return data->addr_sz == 2 ? 2 : 3;
-}
-
-/* read a given size of data (bounds check to be done by caller) */
-static ssize_t _picolcd_flash_read(struct picolcd_data *data, int report_id,
-		char __user *u, size_t s, loff_t *off)
-{
-	struct picolcd_pending *resp;
-	u8 raw_data[4];
-	ssize_t ret = 0;
-	int len_off, err = -EIO;
-
-	while (s > 0) {
-		err = -EIO;
-		len_off = _picolcd_flash_setaddr(data, raw_data, *off);
-		raw_data[len_off] = s > 32 ? 32 : s;
-		resp = picolcd_send_and_wait(data->hdev, report_id, raw_data, len_off+1);
-		if (!resp || !resp->in_report)
-			goto skip;
-		if (resp->in_report->id == REPORT_MEMORY ||
-			resp->in_report->id == REPORT_BL_READ_MEMORY) {
-			if (memcmp(raw_data, resp->raw_data, len_off+1) != 0)
-				goto skip;
-			if (copy_to_user(u+ret, resp->raw_data+len_off+1, raw_data[len_off])) {
-				err = -EFAULT;
-				goto skip;
-			}
-			*off += raw_data[len_off];
-			s    -= raw_data[len_off];
-			ret  += raw_data[len_off];
-			err   = 0;
-		}
-skip:
-		kfree(resp);
-		if (err)
-			return ret > 0 ? ret : err;
-	}
-	return ret;
-}
-
-static ssize_t picolcd_debug_flash_read(struct file *f, char __user *u,
-		size_t s, loff_t *off)
-{
-	struct picolcd_data *data = f->private_data;
-
-	if (s == 0)
-		return -EINVAL;
-	if (*off > 0x05fff)
-		return 0;
-	if (*off + s > 0x05fff)
-		s = 0x06000 - *off;
-
-	if (data->status & PICOLCD_BOOTLOADER)
-		return _picolcd_flash_read(data, REPORT_BL_READ_MEMORY, u, s, off);
-	else
-		return _picolcd_flash_read(data, REPORT_READ_MEMORY, u, s, off);
-}
-
-/* erase block aligned to 64bytes boundary */
-static ssize_t _picolcd_flash_erase64(struct picolcd_data *data, int report_id,
-		loff_t *off)
-{
-	struct picolcd_pending *resp;
-	u8 raw_data[3];
-	int len_off;
-	ssize_t ret = -EIO;
-
-	if (*off & 0x3f)
-		return -EINVAL;
-
-	len_off = _picolcd_flash_setaddr(data, raw_data, *off);
-	resp = picolcd_send_and_wait(data->hdev, report_id, raw_data, len_off);
-	if (!resp || !resp->in_report)
-		goto skip;
-	if (resp->in_report->id == REPORT_MEMORY ||
-		resp->in_report->id == REPORT_BL_ERASE_MEMORY) {
-		if (memcmp(raw_data, resp->raw_data, len_off) != 0)
-			goto skip;
-		ret = 0;
-	}
-skip:
-	kfree(resp);
-	return ret;
-}
-
-/* write a given size of data (bounds check to be done by caller) */
-static ssize_t _picolcd_flash_write(struct picolcd_data *data, int report_id,
-		const char __user *u, size_t s, loff_t *off)
-{
-	struct picolcd_pending *resp;
-	u8 raw_data[36];
-	ssize_t ret = 0;
-	int len_off, err = -EIO;
-
-	while (s > 0) {
-		err = -EIO;
-		len_off = _picolcd_flash_setaddr(data, raw_data, *off);
-		raw_data[len_off] = s > 32 ? 32 : s;
-		if (copy_from_user(raw_data+len_off+1, u, raw_data[len_off])) {
-			err = -EFAULT;
-			break;
-		}
-		resp = picolcd_send_and_wait(data->hdev, report_id, raw_data,
-				len_off+1+raw_data[len_off]);
-		if (!resp || !resp->in_report)
-			goto skip;
-		if (resp->in_report->id == REPORT_MEMORY ||
-			resp->in_report->id == REPORT_BL_WRITE_MEMORY) {
-			if (memcmp(raw_data, resp->raw_data, len_off+1+raw_data[len_off]) != 0)
-				goto skip;
-			*off += raw_data[len_off];
-			s    -= raw_data[len_off];
-			ret  += raw_data[len_off];
-			err   = 0;
-		}
-skip:
-		kfree(resp);
-		if (err)
-			break;
-	}
-	return ret > 0 ? ret : err;
-}
-
-static ssize_t picolcd_debug_flash_write(struct file *f, const char __user *u,
-		size_t s, loff_t *off)
-{
-	struct picolcd_data *data = f->private_data;
-	ssize_t err, ret = 0;
-	int report_erase, report_write;
-
-	if (s == 0)
-		return -EINVAL;
-	if (*off > 0x5fff)
-		return -ENOSPC;
-	if (s & 0x3f)
-		return -EINVAL;
-	if (*off & 0x3f)
-		return -EINVAL;
-
-	if (data->status & PICOLCD_BOOTLOADER) {
-		report_erase = REPORT_BL_ERASE_MEMORY;
-		report_write = REPORT_BL_WRITE_MEMORY;
-	} else {
-		report_erase = REPORT_ERASE_MEMORY;
-		report_write = REPORT_WRITE_MEMORY;
-	}
-	mutex_lock(&data->mutex_flash);
-	while (s > 0) {
-		err = _picolcd_flash_erase64(data, report_erase, off);
-		if (err)
-			break;
-		err = _picolcd_flash_write(data, report_write, u, 64, off);
-		if (err < 0)
-			break;
-		ret += err;
-		*off += err;
-		s -= err;
-		if (err != 64)
-			break;
-	}
-	mutex_unlock(&data->mutex_flash);
-	return ret > 0 ? ret : err;
-}
-
-/*
- * Notes:
- * - concurrent writing is prevented by mutex and all writes must be
- *   n*64 bytes and 64-byte aligned, each write being preceded by an
- *   ERASE which erases a 64byte block.
- *   If less than requested was written or an error is returned for an
- *   otherwise correct write request the next 64-byte block which should
- *   have been written is in undefined state (mostly: original, erased,
- *   (half-)written with write error)
- * - reading can happen without special restriction
- */
-static const struct file_operations picolcd_debug_flash_fops = {
-	.owner    = THIS_MODULE,
-	.open     = simple_open,
-	.read     = picolcd_debug_flash_read,
-	.write    = picolcd_debug_flash_write,
-	.llseek   = generic_file_llseek,
-};
-
-
-/*
- * Helper code for HID report level dumping/debugging
- */
-static const char *error_codes[] = {
-	"success", "parameter missing", "data_missing", "block readonly",
-	"block not erasable", "block too big", "section overflow",
-	"invalid command length", "invalid data length",
-};
-
-static void dump_buff_as_hex(char *dst, size_t dst_sz, const u8 *data,
-		const size_t data_len)
-{
-	int i, j;
-	for (i = j = 0; i < data_len && j + 3 < dst_sz; i++) {
-		dst[j++] = hex_asc[(data[i] >> 4) & 0x0f];
-		dst[j++] = hex_asc[data[i] & 0x0f];
-		dst[j++] = ' ';
-	}
-	if (j < dst_sz) {
-		dst[j--] = '\0';
-		dst[j] = '\n';
-	} else
-		dst[j] = '\0';
-}
-
-static void picolcd_debug_out_report(struct picolcd_data *data,
-		struct hid_device *hdev, struct hid_report *report)
-{
-	u8 raw_data[70];
-	int raw_size = (report->size >> 3) + 1;
-	char *buff;
-#define BUFF_SZ 256
-
-	/* Avoid unnecessary overhead if debugfs is disabled */
-	if (list_empty(&hdev->debug_list))
-		return;
-
-	buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
-	if (!buff)
-		return;
-
-	snprintf(buff, BUFF_SZ, "\nout report %d (size %d) =  ",
-			report->id, raw_size);
-	hid_debug_event(hdev, buff);
-	if (raw_size + 5 > sizeof(raw_data)) {
-		kfree(buff);
-		hid_debug_event(hdev, " TOO BIG\n");
-		return;
-	} else {
-		raw_data[0] = report->id;
-		hid_output_report(report, raw_data);
-		dump_buff_as_hex(buff, BUFF_SZ, raw_data, raw_size);
-		hid_debug_event(hdev, buff);
-	}
-
-	switch (report->id) {
-	case REPORT_LED_STATE:
-		/* 1 data byte with GPO state */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_LED_STATE", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tGPO state: 0x%02x\n", raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_BRIGHTNESS:
-		/* 1 data byte with brightness */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_BRIGHTNESS", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tBrightness: 0x%02x\n", raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_CONTRAST:
-		/* 1 data byte with contrast */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_CONTRAST", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tContrast: 0x%02x\n", raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_RESET:
-		/* 2 data bytes with reset duration in ms */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_RESET", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tDuration: 0x%02x%02x (%dms)\n",
-				raw_data[2], raw_data[1], raw_data[2] << 8 | raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_LCD_CMD:
-		/* 63 data bytes with LCD commands */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_LCD_CMD", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		/* TODO: format decoding */
-		break;
-	case REPORT_LCD_DATA:
-		/* 63 data bytes with LCD data */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_LCD_CMD", report->id, raw_size-1);
-		/* TODO: format decoding */
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_LCD_CMD_DATA:
-		/* 63 data bytes with LCD commands and data */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_LCD_CMD", report->id, raw_size-1);
-		/* TODO: format decoding */
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_EE_READ:
-		/* 3 data bytes with read area description */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_EE_READ", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
-				raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_EE_WRITE:
-		/* 3+1..20 data bytes with write area description */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_EE_WRITE", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
-				raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
-		hid_debug_event(hdev, buff);
-		if (raw_data[3] == 0) {
-			snprintf(buff, BUFF_SZ, "\tNo data\n");
-		} else if (raw_data[3] + 4 <= raw_size) {
-			snprintf(buff, BUFF_SZ, "\tData: ");
-			hid_debug_event(hdev, buff);
-			dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
-		} else {
-			snprintf(buff, BUFF_SZ, "\tData overflowed\n");
-		}
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_ERASE_MEMORY:
-	case REPORT_BL_ERASE_MEMORY:
-		/* 3 data bytes with pointer inside erase block */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_ERASE_MEMORY", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		switch (data->addr_sz) {
-		case 2:
-			snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x\n",
-					raw_data[2], raw_data[1]);
-			break;
-		case 3:
-			snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x%02x\n",
-					raw_data[3], raw_data[2], raw_data[1]);
-			break;
-		default:
-			snprintf(buff, BUFF_SZ, "\tNot supported\n");
-		}
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_READ_MEMORY:
-	case REPORT_BL_READ_MEMORY:
-		/* 4 data bytes with read area description */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_READ_MEMORY", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		switch (data->addr_sz) {
-		case 2:
-			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
-					raw_data[2], raw_data[1]);
-			hid_debug_event(hdev, buff);
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
-			break;
-		case 3:
-			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
-					raw_data[3], raw_data[2], raw_data[1]);
-			hid_debug_event(hdev, buff);
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
-			break;
-		default:
-			snprintf(buff, BUFF_SZ, "\tNot supported\n");
-		}
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_WRITE_MEMORY:
-	case REPORT_BL_WRITE_MEMORY:
-		/* 4+1..32 data bytes with write adrea description */
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_WRITE_MEMORY", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		switch (data->addr_sz) {
-		case 2:
-			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
-					raw_data[2], raw_data[1]);
-			hid_debug_event(hdev, buff);
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
-			hid_debug_event(hdev, buff);
-			if (raw_data[3] == 0) {
-				snprintf(buff, BUFF_SZ, "\tNo data\n");
-			} else if (raw_data[3] + 4 <= raw_size) {
-				snprintf(buff, BUFF_SZ, "\tData: ");
-				hid_debug_event(hdev, buff);
-				dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
-			} else {
-				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
-			}
-			break;
-		case 3:
-			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
-					raw_data[3], raw_data[2], raw_data[1]);
-			hid_debug_event(hdev, buff);
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
-			hid_debug_event(hdev, buff);
-			if (raw_data[4] == 0) {
-				snprintf(buff, BUFF_SZ, "\tNo data\n");
-			} else if (raw_data[4] + 5 <= raw_size) {
-				snprintf(buff, BUFF_SZ, "\tData: ");
-				hid_debug_event(hdev, buff);
-				dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
-			} else {
-				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
-			}
-			break;
-		default:
-			snprintf(buff, BUFF_SZ, "\tNot supported\n");
-		}
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_SPLASH_RESTART:
-		/* TODO */
-		break;
-	case REPORT_EXIT_KEYBOARD:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_EXIT_KEYBOARD", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
-				raw_data[1] | (raw_data[2] << 8),
-				raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_VERSION:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_VERSION", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_DEVID:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_DEVID", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_SPLASH_SIZE:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_SPLASH_SIZE", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_HOOK_VERSION:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_HOOK_VERSION", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_EXIT_FLASHER:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"REPORT_VERSION", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
-				raw_data[1] | (raw_data[2] << 8),
-				raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	default:
-		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
-			"<unknown>", report->id, raw_size-1);
-		hid_debug_event(hdev, buff);
-		break;
-	}
-	wake_up_interruptible(&hdev->debug_wait);
-	kfree(buff);
-}
-
-static void picolcd_debug_raw_event(struct picolcd_data *data,
-		struct hid_device *hdev, struct hid_report *report,
-		u8 *raw_data, int size)
-{
-	char *buff;
-
-#define BUFF_SZ 256
-	/* Avoid unnecessary overhead if debugfs is disabled */
-	if (!hdev->debug_events)
-		return;
-
-	buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
-	if (!buff)
-		return;
-
-	switch (report->id) {
-	case REPORT_ERROR_CODE:
-		/* 2 data bytes with affected report and error code */
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_ERROR_CODE", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		if (raw_data[2] < ARRAY_SIZE(error_codes))
-			snprintf(buff, BUFF_SZ, "\tError code 0x%02x (%s) in reply to report 0x%02x\n",
-					raw_data[2], error_codes[raw_data[2]], raw_data[1]);
-		else
-			snprintf(buff, BUFF_SZ, "\tError code 0x%02x in reply to report 0x%02x\n",
-					raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_KEY_STATE:
-		/* 2 data bytes with key state */
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_KEY_STATE", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		if (raw_data[1] == 0)
-			snprintf(buff, BUFF_SZ, "\tNo key pressed\n");
-		else if (raw_data[2] == 0)
-			snprintf(buff, BUFF_SZ, "\tOne key pressed: 0x%02x (%d)\n",
-					raw_data[1], raw_data[1]);
-		else
-			snprintf(buff, BUFF_SZ, "\tTwo keys pressed: 0x%02x (%d), 0x%02x (%d)\n",
-					raw_data[1], raw_data[1], raw_data[2], raw_data[2]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_IR_DATA:
-		/* Up to 20 byes of IR scancode data */
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_IR_DATA", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		if (raw_data[1] == 0) {
-			snprintf(buff, BUFF_SZ, "\tUnexpectedly 0 data length\n");
-			hid_debug_event(hdev, buff);
-		} else if (raw_data[1] + 1 <= size) {
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n\tIR Data: ",
-					raw_data[1]-1);
-			hid_debug_event(hdev, buff);
-			dump_buff_as_hex(buff, BUFF_SZ, raw_data+2, raw_data[1]-1);
-			hid_debug_event(hdev, buff);
-		} else {
-			snprintf(buff, BUFF_SZ, "\tOverflowing data length: %d\n",
-					raw_data[1]-1);
-			hid_debug_event(hdev, buff);
-		}
-		break;
-	case REPORT_EE_DATA:
-		/* Data buffer in response to REPORT_EE_READ or REPORT_EE_WRITE */
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_EE_DATA", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
-				raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
-		hid_debug_event(hdev, buff);
-		if (raw_data[3] == 0) {
-			snprintf(buff, BUFF_SZ, "\tNo data\n");
-			hid_debug_event(hdev, buff);
-		} else if (raw_data[3] + 4 <= size) {
-			snprintf(buff, BUFF_SZ, "\tData: ");
-			hid_debug_event(hdev, buff);
-			dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
-			hid_debug_event(hdev, buff);
-		} else {
-			snprintf(buff, BUFF_SZ, "\tData overflowed\n");
-			hid_debug_event(hdev, buff);
-		}
-		break;
-	case REPORT_MEMORY:
-		/* Data buffer in response to REPORT_READ_MEMORY or REPORT_WRTIE_MEMORY */
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_MEMORY", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		switch (data->addr_sz) {
-		case 2:
-			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
-					raw_data[2], raw_data[1]);
-			hid_debug_event(hdev, buff);
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
-			hid_debug_event(hdev, buff);
-			if (raw_data[3] == 0) {
-				snprintf(buff, BUFF_SZ, "\tNo data\n");
-			} else if (raw_data[3] + 4 <= size) {
-				snprintf(buff, BUFF_SZ, "\tData: ");
-				hid_debug_event(hdev, buff);
-				dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
-			} else {
-				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
-			}
-			break;
-		case 3:
-			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
-					raw_data[3], raw_data[2], raw_data[1]);
-			hid_debug_event(hdev, buff);
-			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
-			hid_debug_event(hdev, buff);
-			if (raw_data[4] == 0) {
-				snprintf(buff, BUFF_SZ, "\tNo data\n");
-			} else if (raw_data[4] + 5 <= size) {
-				snprintf(buff, BUFF_SZ, "\tData: ");
-				hid_debug_event(hdev, buff);
-				dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
-			} else {
-				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
-			}
-			break;
-		default:
-			snprintf(buff, BUFF_SZ, "\tNot supported\n");
-		}
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_VERSION:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_VERSION", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
-				raw_data[2], raw_data[1]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_BL_ERASE_MEMORY:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_BL_ERASE_MEMORY", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		/* TODO */
-		break;
-	case REPORT_BL_READ_MEMORY:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_BL_READ_MEMORY", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		/* TODO */
-		break;
-	case REPORT_BL_WRITE_MEMORY:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_BL_WRITE_MEMORY", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		/* TODO */
-		break;
-	case REPORT_DEVID:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_DEVID", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tSerial: 0x%02x%02x%02x%02x\n",
-				raw_data[1], raw_data[2], raw_data[3], raw_data[4]);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tType: 0x%02x\n",
-				raw_data[5]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_SPLASH_SIZE:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_SPLASH_SIZE", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tTotal splash space: %d\n",
-				(raw_data[2] << 8) | raw_data[1]);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tUsed splash space: %d\n",
-				(raw_data[4] << 8) | raw_data[3]);
-		hid_debug_event(hdev, buff);
-		break;
-	case REPORT_HOOK_VERSION:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"REPORT_HOOK_VERSION", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
-				raw_data[1], raw_data[2]);
-		hid_debug_event(hdev, buff);
-		break;
-	default:
-		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
-			"<unknown>", report->id, size-1);
-		hid_debug_event(hdev, buff);
-		break;
-	}
-	wake_up_interruptible(&hdev->debug_wait);
-	kfree(buff);
-}
-
-static void picolcd_init_devfs(struct picolcd_data *data,
-		struct hid_report *eeprom_r, struct hid_report *eeprom_w,
-		struct hid_report *flash_r, struct hid_report *flash_w,
-		struct hid_report *reset)
-{
-	struct hid_device *hdev = data->hdev;
-
-	mutex_init(&data->mutex_flash);
-
-	/* reset */
-	if (reset)
-		data->debug_reset = debugfs_create_file("reset", 0600,
-				hdev->debug_dir, data, &picolcd_debug_reset_fops);
-
-	/* eeprom */
-	if (eeprom_r || eeprom_w)
-		data->debug_eeprom = debugfs_create_file("eeprom",
-			(eeprom_w ? S_IWUSR : 0) | (eeprom_r ? S_IRUSR : 0),
-			hdev->debug_dir, data, &picolcd_debug_eeprom_fops);
-
-	/* flash */
-	if (flash_r && flash_r->maxfield == 1 && flash_r->field[0]->report_size == 8)
-		data->addr_sz = flash_r->field[0]->report_count - 1;
-	else
-		data->addr_sz = -1;
-	if (data->addr_sz == 2 || data->addr_sz == 3) {
-		data->debug_flash = debugfs_create_file("flash",
-			(flash_w ? S_IWUSR : 0) | (flash_r ? S_IRUSR : 0),
-			hdev->debug_dir, data, &picolcd_debug_flash_fops);
-	} else if (flash_r || flash_w)
-		hid_warn(hdev, "Unexpected FLASH access reports, please submit rdesc for review\n");
-}
-
-static void picolcd_exit_devfs(struct picolcd_data *data)
-{
-	struct dentry *dent;
-
-	dent = data->debug_reset;
-	data->debug_reset = NULL;
-	if (dent)
-		debugfs_remove(dent);
-	dent = data->debug_eeprom;
-	data->debug_eeprom = NULL;
-	if (dent)
-		debugfs_remove(dent);
-	dent = data->debug_flash;
-	data->debug_flash = NULL;
-	if (dent)
-		debugfs_remove(dent);
-	mutex_destroy(&data->mutex_flash);
-}
-#else
-static inline void picolcd_debug_raw_event(struct picolcd_data *data,
-		struct hid_device *hdev, struct hid_report *report,
-		u8 *raw_data, int size)
-{
-}
-static inline void picolcd_init_devfs(struct picolcd_data *data,
-		struct hid_report *eeprom_r, struct hid_report *eeprom_w,
-		struct hid_report *flash_r, struct hid_report *flash_w,
-		struct hid_report *reset)
-{
-}
-static inline void picolcd_exit_devfs(struct picolcd_data *data)
-{
-}
-#endif /* CONFIG_DEBUG_FS */
-
-/*
- * Handle raw report as sent by device
- */
-static int picolcd_raw_event(struct hid_device *hdev,
-		struct hid_report *report, u8 *raw_data, int size)
-{
-	struct picolcd_data *data = hid_get_drvdata(hdev);
-	unsigned long flags;
-	int ret = 0;
-
-	if (!data)
-		return 1;
-
-	if (report->id == REPORT_KEY_STATE) {
-		if (data->input_keys)
-			ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);
-	} else if (report->id == REPORT_IR_DATA) {
-		if (data->input_cir)
-			ret = picolcd_raw_cir(data, report, raw_data+1, size-1);
-	} else {
-		spin_lock_irqsave(&data->lock, flags);
-		/*
-		 * We let the caller of picolcd_send_and_wait() check if the
-		 * report we got is one of the expected ones or not.
-		 */
-		if (data->pending) {
-			memcpy(data->pending->raw_data, raw_data+1, size-1);
-			data->pending->raw_size  = size-1;
-			data->pending->in_report = report;
-			complete(&data->pending->ready);
-		}
-		spin_unlock_irqrestore(&data->lock, flags);
-	}
-
-	picolcd_debug_raw_event(data, hdev, report, raw_data, size);
-	return 1;
-}
-
-#ifdef CONFIG_PM
-static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
-{
-	if (PMSG_IS_AUTO(message))
-		return 0;
-
-	picolcd_suspend_backlight(hid_get_drvdata(hdev));
-	dbg_hid(PICOLCD_NAME " device ready for suspend\n");
-	return 0;
-}
-
-static int picolcd_resume(struct hid_device *hdev)
-{
-	int ret;
-	ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
-	if (ret)
-		dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
-	return 0;
-}
-
-static int picolcd_reset_resume(struct hid_device *hdev)
-{
-	int ret;
-	ret = picolcd_reset(hdev);
-	if (ret)
-		dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
-	ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
-	if (ret)
-		dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
-	ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
-	if (ret)
-		dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
-	ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
-	if (ret)
-		dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
-	picolcd_leds_set(hid_get_drvdata(hdev));
-	return 0;
-}
-#endif
-
-/* initialize keypad input device */
-static int picolcd_init_keys(struct picolcd_data *data,
-		struct hid_report *report)
-{
-	struct hid_device *hdev = data->hdev;
-	struct input_dev *idev;
-	int error, i;
-
-	if (!report)
-		return -ENODEV;
-	if (report->maxfield != 1 || report->field[0]->report_count != 2 ||
-			report->field[0]->report_size != 8) {
-		hid_err(hdev, "unsupported KEY_STATE report\n");
-		return -EINVAL;
-	}
-
-	idev = input_allocate_device();
-	if (idev == NULL) {
-		hid_err(hdev, "failed to allocate input device\n");
-		return -ENOMEM;
-	}
-	input_set_drvdata(idev, hdev);
-	memcpy(data->keycode, def_keymap, sizeof(def_keymap));
-	idev->name = hdev->name;
-	idev->phys = hdev->phys;
-	idev->uniq = hdev->uniq;
-	idev->id.bustype = hdev->bus;
-	idev->id.vendor  = hdev->vendor;
-	idev->id.product = hdev->product;
-	idev->id.version = hdev->version;
-	idev->dev.parent = hdev->dev.parent;
-	idev->keycode     = &data->keycode;
-	idev->keycodemax  = PICOLCD_KEYS;
-	idev->keycodesize = sizeof(data->keycode[0]);
-	input_set_capability(idev, EV_MSC, MSC_SCAN);
-	set_bit(EV_REP, idev->evbit);
-	for (i = 0; i < PICOLCD_KEYS; i++)
-		input_set_capability(idev, EV_KEY, data->keycode[i]);
-	error = input_register_device(idev);
-	if (error) {
-		hid_err(hdev, "error registering the input device\n");
-		input_free_device(idev);
-		return error;
-	}
-	data->input_keys = idev;
-	return 0;
-}
-
-static void picolcd_exit_keys(struct picolcd_data *data)
-{
-	struct input_dev *idev = data->input_keys;
-
-	data->input_keys = NULL;
-	if (idev)
-		input_unregister_device(idev);
-}
-
-/* initialize CIR input device */
-static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
-{
-	/* support not implemented yet */
-	return 0;
-}
-
-static inline void picolcd_exit_cir(struct picolcd_data *data)
-{
-}
-
-static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
-{
-	int error;
-
-	error = picolcd_check_version(hdev);
-	if (error)
-		return error;
-
-	if (data->version[0] != 0 && data->version[1] != 3)
-		hid_info(hdev, "Device with untested firmware revision, please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n",
-			 dev_name(&hdev->dev));
-
-	/* Setup keypad input device */
-	error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
-	if (error)
-		goto err;
-
-	/* Setup CIR input device */
-	error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev));
-	if (error)
-		goto err;
-
-	/* Set up the framebuffer device */
-	error = picolcd_init_framebuffer(data);
-	if (error)
-		goto err;
-
-	/* Setup lcd class device */
-	error = picolcd_init_lcd(data, picolcd_out_report(REPORT_CONTRAST, hdev));
-	if (error)
-		goto err;
-
-	/* Setup backlight class device */
-	error = picolcd_init_backlight(data, picolcd_out_report(REPORT_BRIGHTNESS, hdev));
-	if (error)
-		goto err;
-
-	/* Setup the LED class devices */
-	error = picolcd_init_leds(data, picolcd_out_report(REPORT_LED_STATE, hdev));
-	if (error)
-		goto err;
-
-	picolcd_init_devfs(data, picolcd_out_report(REPORT_EE_READ, hdev),
-			picolcd_out_report(REPORT_EE_WRITE, hdev),
-			picolcd_out_report(REPORT_READ_MEMORY, hdev),
-			picolcd_out_report(REPORT_WRITE_MEMORY, hdev),
-			picolcd_out_report(REPORT_RESET, hdev));
-	return 0;
-err:
-	picolcd_exit_leds(data);
-	picolcd_exit_backlight(data);
-	picolcd_exit_lcd(data);
-	picolcd_exit_framebuffer(data);
-	picolcd_exit_cir(data);
-	picolcd_exit_keys(data);
-	return error;
-}
-
-static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data)
-{
-	int error;
-
-	error = picolcd_check_version(hdev);
-	if (error)
-		return error;
-
-	if (data->version[0] != 1 && data->version[1] != 0)
-		hid_info(hdev, "Device with untested bootloader revision, please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n",
-			 dev_name(&hdev->dev));
-
-	picolcd_init_devfs(data, NULL, NULL,
-			picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
-			picolcd_out_report(REPORT_BL_WRITE_MEMORY, hdev), NULL);
-	return 0;
-}
-
-static int picolcd_probe(struct hid_device *hdev,
-		     const struct hid_device_id *id)
-{
-	struct picolcd_data *data;
-	int error = -ENOMEM;
-
-	dbg_hid(PICOLCD_NAME " hardware probe...\n");
-
-	/*
-	 * Let's allocate the picolcd data structure, set some reasonable
-	 * defaults, and associate it with the device
-	 */
-	data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL);
-	if (data == NULL) {
-		hid_err(hdev, "can't allocate space for Minibox PicoLCD device data\n");
-		error = -ENOMEM;
-		goto err_no_cleanup;
-	}
-
-	spin_lock_init(&data->lock);
-	mutex_init(&data->mutex);
-	data->hdev = hdev;
-	data->opmode_delay = 5000;
-	if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
-		data->status |= PICOLCD_BOOTLOADER;
-	hid_set_drvdata(hdev, data);
-
-	/* Parse the device reports and start it up */
-	error = hid_parse(hdev);
-	if (error) {
-		hid_err(hdev, "device report parse failed\n");
-		goto err_cleanup_data;
-	}
-
-	error = hid_hw_start(hdev, 0);
-	if (error) {
-		hid_err(hdev, "hardware start failed\n");
-		goto err_cleanup_data;
-	}
-
-	error = hid_hw_open(hdev);
-	if (error) {
-		hid_err(hdev, "failed to open input interrupt pipe for key and IR events\n");
-		goto err_cleanup_hid_hw;
-	}
-
-	error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay);
-	if (error) {
-		hid_err(hdev, "failed to create sysfs attributes\n");
-		goto err_cleanup_hid_ll;
-	}
-
-	error = device_create_file(&hdev->dev, &dev_attr_operation_mode);
-	if (error) {
-		hid_err(hdev, "failed to create sysfs attributes\n");
-		goto err_cleanup_sysfs1;
-	}
-
-	if (data->status & PICOLCD_BOOTLOADER)
-		error = picolcd_probe_bootloader(hdev, data);
-	else
-		error = picolcd_probe_lcd(hdev, data);
-	if (error)
-		goto err_cleanup_sysfs2;
-
-	dbg_hid(PICOLCD_NAME " activated and initialized\n");
-	return 0;
-
-err_cleanup_sysfs2:
-	device_remove_file(&hdev->dev, &dev_attr_operation_mode);
-err_cleanup_sysfs1:
-	device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
-err_cleanup_hid_ll:
-	hid_hw_close(hdev);
-err_cleanup_hid_hw:
-	hid_hw_stop(hdev);
-err_cleanup_data:
-	kfree(data);
-err_no_cleanup:
-	hid_set_drvdata(hdev, NULL);
-
-	return error;
-}
-
-static void picolcd_remove(struct hid_device *hdev)
-{
-	struct picolcd_data *data = hid_get_drvdata(hdev);
-	unsigned long flags;
-
-	dbg_hid(PICOLCD_NAME " hardware remove...\n");
-	spin_lock_irqsave(&data->lock, flags);
-	data->status |= PICOLCD_FAILED;
-	spin_unlock_irqrestore(&data->lock, flags);
-#ifdef CONFIG_HID_PICOLCD_FB
-	/* short-circuit FB as early as possible in order to
-	 * avoid long delays if we host console.
-	 */
-	if (data->fb_info)
-		data->fb_info->par = NULL;
-#endif
-
-	picolcd_exit_devfs(data);
-	device_remove_file(&hdev->dev, &dev_attr_operation_mode);
-	device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
-	hid_hw_close(hdev);
-	hid_hw_stop(hdev);
-	hid_set_drvdata(hdev, NULL);
-
-	/* Shortcut potential pending reply that will never arrive */
-	spin_lock_irqsave(&data->lock, flags);
-	if (data->pending)
-		complete(&data->pending->ready);
-	spin_unlock_irqrestore(&data->lock, flags);
-
-	/* Cleanup LED */
-	picolcd_exit_leds(data);
-	/* Clean up the framebuffer */
-	picolcd_exit_backlight(data);
-	picolcd_exit_lcd(data);
-	picolcd_exit_framebuffer(data);
-	/* Cleanup input */
-	picolcd_exit_cir(data);
-	picolcd_exit_keys(data);
-
-	mutex_destroy(&data->mutex);
-	/* Finally, clean up the picolcd data itself */
-	kfree(data);
-}
-
-static const struct hid_device_id picolcd_devices[] = {
-	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
-	{ }
-};
-MODULE_DEVICE_TABLE(hid, picolcd_devices);
-
-static struct hid_driver picolcd_driver = {
-	.name =          "hid-picolcd",
-	.id_table =      picolcd_devices,
-	.probe =         picolcd_probe,
-	.remove =        picolcd_remove,
-	.raw_event =     picolcd_raw_event,
-#ifdef CONFIG_PM
-	.suspend =       picolcd_suspend,
-	.resume =        picolcd_resume,
-	.reset_resume =  picolcd_reset_resume,
-#endif
-};
-
-static int __init picolcd_init(void)
-{
-	return hid_register_driver(&picolcd_driver);
-}
-
-static void __exit picolcd_exit(void)
-{
-	hid_unregister_driver(&picolcd_driver);
-#ifdef CONFIG_HID_PICOLCD_FB
-	flush_work_sync(&picolcd_fb_cleanup);
-	WARN_ON(fb_pending);
-#endif
-}
-
-module_init(picolcd_init);
-module_exit(picolcd_exit);
-MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-picolcd.h b/drivers/hid/hid-picolcd.h
new file mode 100644
index 00000000000..020cef69f6a
--- /dev/null
+++ b/drivers/hid/hid-picolcd.h
@@ -0,0 +1,309 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#define PICOLCD_NAME "PicoLCD (graphic)"
+
+/* Report numbers */
+#define REPORT_ERROR_CODE      0x10 /* LCD: IN[16]  */
+#define   ERR_SUCCESS            0x00
+#define   ERR_PARAMETER_MISSING  0x01
+#define   ERR_DATA_MISSING       0x02
+#define   ERR_BLOCK_READ_ONLY    0x03
+#define   ERR_BLOCK_NOT_ERASABLE 0x04
+#define   ERR_BLOCK_TOO_BIG      0x05
+#define   ERR_SECTION_OVERFLOW   0x06
+#define   ERR_INVALID_CMD_LEN    0x07
+#define   ERR_INVALID_DATA_LEN   0x08
+#define REPORT_KEY_STATE       0x11 /* LCD: IN[2]   */
+#define REPORT_IR_DATA         0x21 /* LCD: IN[63]  */
+#define REPORT_EE_DATA         0x32 /* LCD: IN[63]  */
+#define REPORT_MEMORY          0x41 /* LCD: IN[63]  */
+#define REPORT_LED_STATE       0x81 /* LCD: OUT[1]  */
+#define REPORT_BRIGHTNESS      0x91 /* LCD: OUT[1]  */
+#define REPORT_CONTRAST        0x92 /* LCD: OUT[1]  */
+#define REPORT_RESET           0x93 /* LCD: OUT[2]  */
+#define REPORT_LCD_CMD         0x94 /* LCD: OUT[63] */
+#define REPORT_LCD_DATA        0x95 /* LCD: OUT[63] */
+#define REPORT_LCD_CMD_DATA    0x96 /* LCD: OUT[63] */
+#define	REPORT_EE_READ         0xa3 /* LCD: OUT[63] */
+#define REPORT_EE_WRITE        0xa4 /* LCD: OUT[63] */
+#define REPORT_ERASE_MEMORY    0xb2 /* LCD: OUT[2]  */
+#define REPORT_READ_MEMORY     0xb3 /* LCD: OUT[3]  */
+#define REPORT_WRITE_MEMORY    0xb4 /* LCD: OUT[63] */
+#define REPORT_SPLASH_RESTART  0xc1 /* LCD: OUT[1]  */
+#define REPORT_EXIT_KEYBOARD   0xef /* LCD: OUT[2]  */
+#define REPORT_VERSION         0xf1 /* LCD: IN[2],OUT[1]    Bootloader: IN[2],OUT[1]   */
+#define REPORT_BL_ERASE_MEMORY 0xf2 /*                      Bootloader: IN[36],OUT[4]  */
+#define REPORT_BL_READ_MEMORY  0xf3 /*                      Bootloader: IN[36],OUT[4]  */
+#define REPORT_BL_WRITE_MEMORY 0xf4 /*                      Bootloader: IN[36],OUT[36] */
+#define REPORT_DEVID           0xf5 /* LCD: IN[5], OUT[1]   Bootloader: IN[5],OUT[1]   */
+#define REPORT_SPLASH_SIZE     0xf6 /* LCD: IN[4], OUT[1]   */
+#define REPORT_HOOK_VERSION    0xf7 /* LCD: IN[2], OUT[1]   */
+#define REPORT_EXIT_FLASHER    0xff /*                      Bootloader: OUT[2]         */
+
+/* Description of in-progress IO operation, used for operations
+ * that trigger response from device */
+struct picolcd_pending {
+	struct hid_report *out_report;
+	struct hid_report *in_report;
+	struct completion ready;
+	int raw_size;
+	u8 raw_data[64];
+};
+
+
+#define PICOLCD_KEYS 17
+
+/* Per device data structure */
+struct picolcd_data {
+	struct hid_device *hdev;
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *debug_reset;
+	struct dentry *debug_eeprom;
+	struct dentry *debug_flash;
+	struct mutex mutex_flash;
+	int addr_sz;
+#endif
+	u8 version[2];
+	unsigned short opmode_delay;
+	/* input stuff */
+	u8 pressed_keys[2];
+	struct input_dev *input_keys;
+#ifdef CONFIG_HID_PICOLCD_CIR
+	struct rc_dev *rc_dev;
+#endif
+	unsigned short keycode[PICOLCD_KEYS];
+
+#ifdef CONFIG_HID_PICOLCD_FB
+	/* Framebuffer stuff */
+	struct fb_info *fb_info;
+#endif /* CONFIG_HID_PICOLCD_FB */
+#ifdef CONFIG_HID_PICOLCD_LCD
+	struct lcd_device *lcd;
+	u8 lcd_contrast;
+#endif /* CONFIG_HID_PICOLCD_LCD */
+#ifdef CONFIG_HID_PICOLCD_BACKLIGHT
+	struct backlight_device *backlight;
+	u8 lcd_brightness;
+	u8 lcd_power;
+#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
+#ifdef CONFIG_HID_PICOLCD_LEDS
+	/* LED stuff */
+	u8 led_state;
+	struct led_classdev *led[8];
+#endif /* CONFIG_HID_PICOLCD_LEDS */
+
+	/* Housekeeping stuff */
+	spinlock_t lock;
+	struct mutex mutex;
+	struct picolcd_pending *pending;
+	int status;
+#define PICOLCD_BOOTLOADER 1
+#define PICOLCD_FAILED 2
+#define PICOLCD_CIR_SHUN 4
+};
+
+#ifdef CONFIG_HID_PICOLCD_FB
+struct picolcd_fb_data {
+	/* Framebuffer stuff */
+	spinlock_t lock;
+	struct picolcd_data *picolcd;
+	u8 update_rate;
+	u8 bpp;
+	u8 force;
+	u8 ready;
+	u8 *vbitmap;		/* local copy of what was sent to PicoLCD */
+	u8 *bitmap;		/* framebuffer */
+};
+#endif /* CONFIG_HID_PICOLCD_FB */
+
+/* Find a given report */
+#define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT)
+#define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT)
+
+struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir);
+
+#ifdef CONFIG_DEBUG_FS
+void picolcd_debug_out_report(struct picolcd_data *data,
+		struct hid_device *hdev, struct hid_report *report);
+#define usbhid_submit_report(a, b, c) \
+	do { \
+		picolcd_debug_out_report(hid_get_drvdata(a), a, b); \
+		usbhid_submit_report(a, b, c); \
+	} while (0)
+
+void picolcd_debug_raw_event(struct picolcd_data *data,
+		struct hid_device *hdev, struct hid_report *report,
+		u8 *raw_data, int size);
+
+void picolcd_init_devfs(struct picolcd_data *data,
+		struct hid_report *eeprom_r, struct hid_report *eeprom_w,
+		struct hid_report *flash_r, struct hid_report *flash_w,
+		struct hid_report *reset);
+
+void picolcd_exit_devfs(struct picolcd_data *data);
+#else
+static inline void picolcd_debug_out_report(struct picolcd_data *data,
+		struct hid_device *hdev, struct hid_report *report)
+{
+}
+static inline void picolcd_debug_raw_event(struct picolcd_data *data,
+		struct hid_device *hdev, struct hid_report *report,
+		u8 *raw_data, int size)
+{
+}
+static inline void picolcd_init_devfs(struct picolcd_data *data,
+		struct hid_report *eeprom_r, struct hid_report *eeprom_w,
+		struct hid_report *flash_r, struct hid_report *flash_w,
+		struct hid_report *reset)
+{
+}
+static inline void picolcd_exit_devfs(struct picolcd_data *data)
+{
+}
+#endif /* CONFIG_DEBUG_FS */
+
+
+#ifdef CONFIG_HID_PICOLCD_FB
+int picolcd_fb_reset(struct picolcd_data *data, int clear);
+
+int picolcd_init_framebuffer(struct picolcd_data *data);
+
+void picolcd_exit_framebuffer(struct picolcd_data *data);
+
+void picolcd_fb_refresh(struct picolcd_data *data);
+#define picolcd_fbinfo(d) ((d)->fb_info)
+#else
+static inline int picolcd_fb_reset(struct picolcd_data *data, int clear)
+{
+	return 0;
+}
+static inline int picolcd_init_framebuffer(struct picolcd_data *data)
+{
+	return 0;
+}
+static inline void picolcd_exit_framebuffer(struct picolcd_data *data)
+{
+}
+static inline void picolcd_fb_refresh(struct picolcd_data *data)
+{
+}
+#define picolcd_fbinfo(d) NULL
+#endif /* CONFIG_HID_PICOLCD_FB */
+
+
+#ifdef CONFIG_HID_PICOLCD_BACKLIGHT
+int picolcd_init_backlight(struct picolcd_data *data,
+		struct hid_report *report);
+
+void picolcd_exit_backlight(struct picolcd_data *data);
+
+int picolcd_resume_backlight(struct picolcd_data *data);
+
+void picolcd_suspend_backlight(struct picolcd_data *data);
+#else
+static inline int picolcd_init_backlight(struct picolcd_data *data,
+		struct hid_report *report)
+{
+	return 0;
+}
+static inline void picolcd_exit_backlight(struct picolcd_data *data)
+{
+}
+static inline int picolcd_resume_backlight(struct picolcd_data *data)
+{
+	return 0;
+}
+static inline void picolcd_suspend_backlight(struct picolcd_data *data)
+{
+}
+
+#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
+
+
+#ifdef CONFIG_HID_PICOLCD_LCD
+int picolcd_init_lcd(struct picolcd_data *data,
+		struct hid_report *report);
+
+void picolcd_exit_lcd(struct picolcd_data *data);
+
+int picolcd_resume_lcd(struct picolcd_data *data);
+#else
+static inline int picolcd_init_lcd(struct picolcd_data *data,
+		struct hid_report *report)
+{
+	return 0;
+}
+static inline void picolcd_exit_lcd(struct picolcd_data *data)
+{
+}
+static inline int picolcd_resume_lcd(struct picolcd_data *data)
+{
+	return 0;
+}
+#endif /* CONFIG_HID_PICOLCD_LCD */
+
+
+#ifdef CONFIG_HID_PICOLCD_LEDS
+int picolcd_init_leds(struct picolcd_data *data,
+		struct hid_report *report);
+
+void picolcd_exit_leds(struct picolcd_data *data);
+
+void picolcd_leds_set(struct picolcd_data *data);
+#else
+static inline int picolcd_init_leds(struct picolcd_data *data,
+		struct hid_report *report)
+{
+	return 0;
+}
+static inline void picolcd_exit_leds(struct picolcd_data *data)
+{
+}
+static inline void picolcd_leds_set(struct picolcd_data *data)
+{
+}
+#endif /* CONFIG_HID_PICOLCD_LEDS */
+
+
+#ifdef CONFIG_HID_PICOLCD_CIR
+int picolcd_raw_cir(struct picolcd_data *data,
+		struct hid_report *report, u8 *raw_data, int size);
+
+int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report);
+
+void picolcd_exit_cir(struct picolcd_data *data);
+#else
+static inline int picolcd_raw_cir(struct picolcd_data *data,
+		struct hid_report *report, u8 *raw_data, int size)
+{
+	return 1;
+}
+static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
+{
+	return 0;
+}
+static inline void picolcd_exit_cir(struct picolcd_data *data)
+{
+}
+#endif /* CONFIG_HID_PICOLCD_LIRC */
+
+int picolcd_reset(struct hid_device *hdev);
+struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
+			int report_id, const u8 *raw_data, int size);
diff --git a/drivers/hid/hid-picolcd_backlight.c b/drivers/hid/hid-picolcd_backlight.c
new file mode 100644
index 00000000000..b91f30945f9
--- /dev/null
+++ b/drivers/hid/hid-picolcd_backlight.c
@@ -0,0 +1,122 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/backlight.h>
+
+#include "hid-picolcd.h"
+
+static int picolcd_get_brightness(struct backlight_device *bdev)
+{
+	struct picolcd_data *data = bl_get_data(bdev);
+	return data->lcd_brightness;
+}
+
+static int picolcd_set_brightness(struct backlight_device *bdev)
+{
+	struct picolcd_data *data = bl_get_data(bdev);
+	struct hid_report *report = picolcd_out_report(REPORT_BRIGHTNESS, data->hdev);
+	unsigned long flags;
+
+	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
+		return -ENODEV;
+
+	data->lcd_brightness = bdev->props.brightness & 0x0ff;
+	data->lcd_power      = bdev->props.power;
+	spin_lock_irqsave(&data->lock, flags);
+	hid_set_field(report->field[0], 0, data->lcd_power == FB_BLANK_UNBLANK ? data->lcd_brightness : 0);
+	if (!(data->status & PICOLCD_FAILED))
+		usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
+	spin_unlock_irqrestore(&data->lock, flags);
+	return 0;
+}
+
+static int picolcd_check_bl_fb(struct backlight_device *bdev, struct fb_info *fb)
+{
+	return fb && fb == picolcd_fbinfo((struct picolcd_data *)bl_get_data(bdev));
+}
+
+static const struct backlight_ops picolcd_blops = {
+	.update_status  = picolcd_set_brightness,
+	.get_brightness = picolcd_get_brightness,
+	.check_fb       = picolcd_check_bl_fb,
+};
+
+int picolcd_init_backlight(struct picolcd_data *data, struct hid_report *report)
+{
+	struct device *dev = &data->hdev->dev;
+	struct backlight_device *bdev;
+	struct backlight_properties props;
+	if (!report)
+		return -ENODEV;
+	if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
+			report->field[0]->report_size != 8) {
+		dev_err(dev, "unsupported BRIGHTNESS report");
+		return -EINVAL;
+	}
+
+	memset(&props, 0, sizeof(props));
+	props.type = BACKLIGHT_RAW;
+	props.max_brightness = 0xff;
+	bdev = backlight_device_register(dev_name(dev), dev, data,
+			&picolcd_blops, &props);
+	if (IS_ERR(bdev)) {
+		dev_err(dev, "failed to register backlight\n");
+		return PTR_ERR(bdev);
+	}
+	bdev->props.brightness     = 0xff;
+	data->lcd_brightness       = 0xff;
+	data->backlight            = bdev;
+	picolcd_set_brightness(bdev);
+	return 0;
+}
+
+void picolcd_exit_backlight(struct picolcd_data *data)
+{
+	struct backlight_device *bdev = data->backlight;
+
+	data->backlight = NULL;
+	if (bdev)
+		backlight_device_unregister(bdev);
+}
+
+int picolcd_resume_backlight(struct picolcd_data *data)
+{
+	if (!data->backlight)
+		return 0;
+	return picolcd_set_brightness(data->backlight);
+}
+
+#ifdef CONFIG_PM
+void picolcd_suspend_backlight(struct picolcd_data *data)
+{
+	int bl_power = data->lcd_power;
+	if (!data->backlight)
+		return;
+
+	data->backlight->props.power = FB_BLANK_POWERDOWN;
+	picolcd_set_brightness(data->backlight);
+	data->lcd_power = data->backlight->props.power = bl_power;
+}
+#endif /* CONFIG_PM */
+
diff --git a/drivers/hid/hid-picolcd_cir.c b/drivers/hid/hid-picolcd_cir.c
new file mode 100644
index 00000000000..13ca9191b63
--- /dev/null
+++ b/drivers/hid/hid-picolcd_cir.c
@@ -0,0 +1,152 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include <linux/hid-debug.h>
+#include <linux/input.h>
+#include "hid-ids.h"
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/vmalloc.h>
+#include <linux/backlight.h>
+#include <linux/lcd.h>
+
+#include <linux/leds.h>
+
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+
+#include <linux/completion.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+#include <media/rc-core.h>
+
+#include "hid-picolcd.h"
+
+
+int picolcd_raw_cir(struct picolcd_data *data,
+		struct hid_report *report, u8 *raw_data, int size)
+{
+	unsigned long flags;
+	int i, w, sz;
+	DEFINE_IR_RAW_EVENT(rawir);
+
+	/* ignore if rc_dev is NULL or status is shunned */
+	spin_lock_irqsave(&data->lock, flags);
+	if (!data->rc_dev || (data->status & PICOLCD_CIR_SHUN)) {
+		spin_unlock_irqrestore(&data->lock, flags);
+		return 1;
+	}
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	/* PicoLCD USB packets contain 16-bit intervals in network order,
+	 * with value negated for pulse. Intervals are in microseconds.
+	 *
+	 * Note: some userspace LIRC code for PicoLCD says negated values
+	 * for space - is it a matter of IR chip? (pulse for my TSOP2236)
+	 *
+	 * In addition, the first interval seems to be around 15000 + base
+	 * interval for non-first report of IR data - thus the quirk below
+	 * to get RC_CODE to understand Sony and JVC remotes I have at hand
+	 */
+	sz = size > 0 ? min((int)raw_data[0], size-1) : 0;
+	for (i = 0; i+1 < sz; i += 2) {
+		init_ir_raw_event(&rawir);
+		w = (raw_data[i] << 8) | (raw_data[i+1]);
+		rawir.pulse = !!(w & 0x8000);
+		rawir.duration = US_TO_NS(rawir.pulse ? (65536 - w) : w);
+		/* Quirk!! - see above */
+		if (i == 0 && rawir.duration > 15000000)
+			rawir.duration -= 15000000;
+		ir_raw_event_store(data->rc_dev, &rawir);
+	}
+	ir_raw_event_handle(data->rc_dev);
+
+	return 1;
+}
+
+static int picolcd_cir_open(struct rc_dev *dev)
+{
+	struct picolcd_data *data = dev->priv;
+	unsigned long flags;
+
+	spin_lock_irqsave(&data->lock, flags);
+	data->status &= ~PICOLCD_CIR_SHUN;
+	spin_unlock_irqrestore(&data->lock, flags);
+	return 0;
+}
+
+static void picolcd_cir_close(struct rc_dev *dev)
+{
+	struct picolcd_data *data = dev->priv;
+	unsigned long flags;
+
+	spin_lock_irqsave(&data->lock, flags);
+	data->status |= PICOLCD_CIR_SHUN;
+	spin_unlock_irqrestore(&data->lock, flags);
+}
+
+/* initialize CIR input device */
+int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
+{
+	struct rc_dev *rdev;
+	int ret = 0;
+
+	rdev = rc_allocate_device();
+	if (!rdev)
+		return -ENOMEM;
+
+	rdev->priv             = data;
+	rdev->driver_type      = RC_DRIVER_IR_RAW;
+	rdev->allowed_protos   = RC_TYPE_ALL;
+	rdev->open             = picolcd_cir_open;
+	rdev->close            = picolcd_cir_close;
+	rdev->input_name       = data->hdev->name;
+	rdev->input_phys       = data->hdev->phys;
+	rdev->input_id.bustype = data->hdev->bus;
+	rdev->input_id.vendor  = data->hdev->vendor;
+	rdev->input_id.product = data->hdev->product;
+	rdev->input_id.version = data->hdev->version;
+	rdev->dev.parent       = &data->hdev->dev;
+	rdev->driver_name      = PICOLCD_NAME;
+	rdev->map_name         = RC_MAP_RC6_MCE;
+	rdev->timeout          = MS_TO_NS(100);
+	rdev->rx_resolution    = US_TO_NS(1);
+
+	ret = rc_register_device(rdev);
+	if (ret)
+		goto err;
+	data->rc_dev = rdev;
+	return 0;
+
+err:
+	rc_free_device(rdev);
+	return ret;
+}
+
+void picolcd_exit_cir(struct picolcd_data *data)
+{
+	struct rc_dev *rdev = data->rc_dev;
+
+	data->rc_dev = NULL;
+	rc_unregister_device(rdev);
+}
+
diff --git a/drivers/hid/hid-picolcd_core.c b/drivers/hid/hid-picolcd_core.c
new file mode 100644
index 00000000000..86df26e58ab
--- /dev/null
+++ b/drivers/hid/hid-picolcd_core.c
@@ -0,0 +1,689 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include <linux/hid-debug.h>
+#include <linux/input.h>
+#include "hid-ids.h"
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/vmalloc.h>
+
+#include <linux/completion.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+
+#include "hid-picolcd.h"
+
+
+/* Input device
+ *
+ * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys
+ * and header for 4x4 key matrix. The built-in keys are part of the matrix.
+ */
+static const unsigned short def_keymap[PICOLCD_KEYS] = {
+	KEY_RESERVED,	/* none */
+	KEY_BACK,	/* col 4 + row 1 */
+	KEY_HOMEPAGE,	/* col 3 + row 1 */
+	KEY_RESERVED,	/* col 2 + row 1 */
+	KEY_RESERVED,	/* col 1 + row 1 */
+	KEY_SCROLLUP,	/* col 4 + row 2 */
+	KEY_OK,		/* col 3 + row 2 */
+	KEY_SCROLLDOWN,	/* col 2 + row 2 */
+	KEY_RESERVED,	/* col 1 + row 2 */
+	KEY_RESERVED,	/* col 4 + row 3 */
+	KEY_RESERVED,	/* col 3 + row 3 */
+	KEY_RESERVED,	/* col 2 + row 3 */
+	KEY_RESERVED,	/* col 1 + row 3 */
+	KEY_RESERVED,	/* col 4 + row 4 */
+	KEY_RESERVED,	/* col 3 + row 4 */
+	KEY_RESERVED,	/* col 2 + row 4 */
+	KEY_RESERVED,	/* col 1 + row 4 */
+};
+
+
+/* Find a given report */
+struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir)
+{
+	struct list_head *feature_report_list = &hdev->report_enum[dir].report_list;
+	struct hid_report *report = NULL;
+
+	list_for_each_entry(report, feature_report_list, list) {
+		if (report->id == id)
+			return report;
+	}
+	hid_warn(hdev, "No report with id 0x%x found\n", id);
+	return NULL;
+}
+
+/* Submit a report and wait for a reply from device - if device fades away
+ * or does not respond in time, return NULL */
+struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
+		int report_id, const u8 *raw_data, int size)
+{
+	struct picolcd_data *data = hid_get_drvdata(hdev);
+	struct picolcd_pending *work;
+	struct hid_report *report = picolcd_out_report(report_id, hdev);
+	unsigned long flags;
+	int i, j, k;
+
+	if (!report || !data)
+		return NULL;
+	if (data->status & PICOLCD_FAILED)
+		return NULL;
+	work = kzalloc(sizeof(*work), GFP_KERNEL);
+	if (!work)
+		return NULL;
+
+	init_completion(&work->ready);
+	work->out_report = report;
+	work->in_report  = NULL;
+	work->raw_size   = 0;
+
+	mutex_lock(&data->mutex);
+	spin_lock_irqsave(&data->lock, flags);
+	for (i = k = 0; i < report->maxfield; i++)
+		for (j = 0; j < report->field[i]->report_count; j++) {
+			hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
+			k++;
+		}
+	if (data->status & PICOLCD_FAILED) {
+		kfree(work);
+		work = NULL;
+	} else {
+		data->pending = work;
+		usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
+		spin_unlock_irqrestore(&data->lock, flags);
+		wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
+		spin_lock_irqsave(&data->lock, flags);
+		data->pending = NULL;
+	}
+	spin_unlock_irqrestore(&data->lock, flags);
+	mutex_unlock(&data->mutex);
+	return work;
+}
+
+/*
+ * input class device
+ */
+static int picolcd_raw_keypad(struct picolcd_data *data,
+		struct hid_report *report, u8 *raw_data, int size)
+{
+	/*
+	 * Keypad event
+	 * First and second data bytes list currently pressed keys,
+	 * 0x00 means no key and at most 2 keys may be pressed at same time
+	 */
+	int i, j;
+
+	/* determine newly pressed keys */
+	for (i = 0; i < size; i++) {
+		unsigned int key_code;
+		if (raw_data[i] == 0)
+			continue;
+		for (j = 0; j < sizeof(data->pressed_keys); j++)
+			if (data->pressed_keys[j] == raw_data[i])
+				goto key_already_down;
+		for (j = 0; j < sizeof(data->pressed_keys); j++)
+			if (data->pressed_keys[j] == 0) {
+				data->pressed_keys[j] = raw_data[i];
+				break;
+			}
+		input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]);
+		if (raw_data[i] < PICOLCD_KEYS)
+			key_code = data->keycode[raw_data[i]];
+		else
+			key_code = KEY_UNKNOWN;
+		if (key_code != KEY_UNKNOWN) {
+			dbg_hid(PICOLCD_NAME " got key press for %u:%d",
+					raw_data[i], key_code);
+			input_report_key(data->input_keys, key_code, 1);
+		}
+		input_sync(data->input_keys);
+key_already_down:
+		continue;
+	}
+
+	/* determine newly released keys */
+	for (j = 0; j < sizeof(data->pressed_keys); j++) {
+		unsigned int key_code;
+		if (data->pressed_keys[j] == 0)
+			continue;
+		for (i = 0; i < size; i++)
+			if (data->pressed_keys[j] == raw_data[i])
+				goto key_still_down;
+		input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]);
+		if (data->pressed_keys[j] < PICOLCD_KEYS)
+			key_code = data->keycode[data->pressed_keys[j]];
+		else
+			key_code = KEY_UNKNOWN;
+		if (key_code != KEY_UNKNOWN) {
+			dbg_hid(PICOLCD_NAME " got key release for %u:%d",
+					data->pressed_keys[j], key_code);
+			input_report_key(data->input_keys, key_code, 0);
+		}
+		input_sync(data->input_keys);
+		data->pressed_keys[j] = 0;
+key_still_down:
+		continue;
+	}
+	return 1;
+}
+
+static int picolcd_check_version(struct hid_device *hdev)
+{
+	struct picolcd_data *data = hid_get_drvdata(hdev);
+	struct picolcd_pending *verinfo;
+	int ret = 0;
+
+	if (!data)
+		return -ENODEV;
+
+	verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0);
+	if (!verinfo) {
+		hid_err(hdev, "no version response from PicoLCD\n");
+		return -ENODEV;
+	}
+
+	if (verinfo->raw_size == 2) {
+		data->version[0] = verinfo->raw_data[1];
+		data->version[1] = verinfo->raw_data[0];
+		if (data->status & PICOLCD_BOOTLOADER) {
+			hid_info(hdev, "PicoLCD, bootloader version %d.%d\n",
+				 verinfo->raw_data[1], verinfo->raw_data[0]);
+		} else {
+			hid_info(hdev, "PicoLCD, firmware version %d.%d\n",
+				 verinfo->raw_data[1], verinfo->raw_data[0]);
+		}
+	} else {
+		hid_err(hdev, "confused, got unexpected version response from PicoLCD\n");
+		ret = -EINVAL;
+	}
+	kfree(verinfo);
+	return ret;
+}
+
+/*
+ * Reset our device and wait for answer to VERSION request
+ */
+int picolcd_reset(struct hid_device *hdev)
+{
+	struct picolcd_data *data = hid_get_drvdata(hdev);
+	struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
+	unsigned long flags;
+	int error;
+
+	if (!data || !report || report->maxfield != 1)
+		return -ENODEV;
+
+	spin_lock_irqsave(&data->lock, flags);
+	if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
+		data->status |= PICOLCD_BOOTLOADER;
+
+	/* perform the reset */
+	hid_set_field(report->field[0], 0, 1);
+	if (data->status & PICOLCD_FAILED) {
+		spin_unlock_irqrestore(&data->lock, flags);
+		return -ENODEV;
+	}
+	usbhid_submit_report(hdev, report, USB_DIR_OUT);
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	error = picolcd_check_version(hdev);
+	if (error)
+		return error;
+
+	picolcd_resume_lcd(data);
+	picolcd_resume_backlight(data);
+	picolcd_fb_refresh(data);
+	picolcd_leds_set(data);
+	return 0;
+}
+
+/*
+ * The "operation_mode" sysfs attribute
+ */
+static ssize_t picolcd_operation_mode_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct picolcd_data *data = dev_get_drvdata(dev);
+
+	if (data->status & PICOLCD_BOOTLOADER)
+		return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n");
+	else
+		return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n");
+}
+
+static ssize_t picolcd_operation_mode_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct picolcd_data *data = dev_get_drvdata(dev);
+	struct hid_report *report = NULL;
+	size_t cnt = count;
+	int timeout = data->opmode_delay;
+	unsigned long flags;
+
+	if (cnt >= 3 && strncmp("lcd", buf, 3) == 0) {
+		if (data->status & PICOLCD_BOOTLOADER)
+			report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
+		buf += 3;
+		cnt -= 3;
+	} else if (cnt >= 10 && strncmp("bootloader", buf, 10) == 0) {
+		if (!(data->status & PICOLCD_BOOTLOADER))
+			report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
+		buf += 10;
+		cnt -= 10;
+	}
+	if (!report)
+		return -EINVAL;
+
+	while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r'))
+		cnt--;
+	if (cnt != 0)
+		return -EINVAL;
+
+	spin_lock_irqsave(&data->lock, flags);
+	hid_set_field(report->field[0], 0, timeout & 0xff);
+	hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
+	usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
+	spin_unlock_irqrestore(&data->lock, flags);
+	return count;
+}
+
+static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show,
+		picolcd_operation_mode_store);
+
+/*
+ * The "operation_mode_delay" sysfs attribute
+ */
+static ssize_t picolcd_operation_mode_delay_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct picolcd_data *data = dev_get_drvdata(dev);
+
+	return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay);
+}
+
+static ssize_t picolcd_operation_mode_delay_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct picolcd_data *data = dev_get_drvdata(dev);
+	unsigned u;
+	if (sscanf(buf, "%u", &u) != 1)
+		return -EINVAL;
+	if (u > 30000)
+		return -EINVAL;
+	else
+		data->opmode_delay = u;
+	return count;
+}
+
+static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show,
+		picolcd_operation_mode_delay_store);
+
+/*
+ * Handle raw report as sent by device
+ */
+static int picolcd_raw_event(struct hid_device *hdev,
+		struct hid_report *report, u8 *raw_data, int size)
+{
+	struct picolcd_data *data = hid_get_drvdata(hdev);
+	unsigned long flags;
+	int ret = 0;
+
+	if (!data)
+		return 1;
+
+	if (report->id == REPORT_KEY_STATE) {
+		if (data->input_keys)
+			ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);
+	} else if (report->id == REPORT_IR_DATA) {
+		ret = picolcd_raw_cir(data, report, raw_data+1, size-1);
+	} else {
+		spin_lock_irqsave(&data->lock, flags);
+		/*
+		 * We let the caller of picolcd_send_and_wait() check if the
+		 * report we got is one of the expected ones or not.
+		 */
+		if (data->pending) {
+			memcpy(data->pending->raw_data, raw_data+1, size-1);
+			data->pending->raw_size  = size-1;
+			data->pending->in_report = report;
+			complete(&data->pending->ready);
+		}
+		spin_unlock_irqrestore(&data->lock, flags);
+	}
+
+	picolcd_debug_raw_event(data, hdev, report, raw_data, size);
+	return 1;
+}
+
+#ifdef CONFIG_PM
+static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
+{
+	if (PMSG_IS_AUTO(message))
+		return 0;
+
+	picolcd_suspend_backlight(hid_get_drvdata(hdev));
+	dbg_hid(PICOLCD_NAME " device ready for suspend\n");
+	return 0;
+}
+
+static int picolcd_resume(struct hid_device *hdev)
+{
+	int ret;
+	ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
+	if (ret)
+		dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
+	return 0;
+}
+
+static int picolcd_reset_resume(struct hid_device *hdev)
+{
+	int ret;
+	ret = picolcd_reset(hdev);
+	if (ret)
+		dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
+	ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
+	if (ret)
+		dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
+	ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
+	if (ret)
+		dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
+	ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
+	if (ret)
+		dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
+	picolcd_leds_set(hid_get_drvdata(hdev));
+	return 0;
+}
+#endif
+
+/* initialize keypad input device */
+static int picolcd_init_keys(struct picolcd_data *data,
+		struct hid_report *report)
+{
+	struct hid_device *hdev = data->hdev;
+	struct input_dev *idev;
+	int error, i;
+
+	if (!report)
+		return -ENODEV;
+	if (report->maxfield != 1 || report->field[0]->report_count != 2 ||
+			report->field[0]->report_size != 8) {
+		hid_err(hdev, "unsupported KEY_STATE report\n");
+		return -EINVAL;
+	}
+
+	idev = input_allocate_device();
+	if (idev == NULL) {
+		hid_err(hdev, "failed to allocate input device\n");
+		return -ENOMEM;
+	}
+	input_set_drvdata(idev, hdev);
+	memcpy(data->keycode, def_keymap, sizeof(def_keymap));
+	idev->name = hdev->name;
+	idev->phys = hdev->phys;
+	idev->uniq = hdev->uniq;
+	idev->id.bustype = hdev->bus;
+	idev->id.vendor  = hdev->vendor;
+	idev->id.product = hdev->product;
+	idev->id.version = hdev->version;
+	idev->dev.parent = &hdev->dev;
+	idev->keycode     = &data->keycode;
+	idev->keycodemax  = PICOLCD_KEYS;
+	idev->keycodesize = sizeof(data->keycode[0]);
+	input_set_capability(idev, EV_MSC, MSC_SCAN);
+	set_bit(EV_REP, idev->evbit);
+	for (i = 0; i < PICOLCD_KEYS; i++)
+		input_set_capability(idev, EV_KEY, data->keycode[i]);
+	error = input_register_device(idev);
+	if (error) {
+		hid_err(hdev, "error registering the input device\n");
+		input_free_device(idev);
+		return error;
+	}
+	data->input_keys = idev;
+	return 0;
+}
+
+static void picolcd_exit_keys(struct picolcd_data *data)
+{
+	struct input_dev *idev = data->input_keys;
+
+	data->input_keys = NULL;
+	if (idev)
+		input_unregister_device(idev);
+}
+
+static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
+{
+	int error;
+
+	/* Setup keypad input device */
+	error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
+	if (error)
+		goto err;
+
+	/* Setup CIR input device */
+	error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev));
+	if (error)
+		goto err;
+
+	/* Set up the framebuffer device */
+	error = picolcd_init_framebuffer(data);
+	if (error)
+		goto err;
+
+	/* Setup lcd class device */
+	error = picolcd_init_lcd(data, picolcd_out_report(REPORT_CONTRAST, hdev));
+	if (error)
+		goto err;
+
+	/* Setup backlight class device */
+	error = picolcd_init_backlight(data, picolcd_out_report(REPORT_BRIGHTNESS, hdev));
+	if (error)
+		goto err;
+
+	/* Setup the LED class devices */
+	error = picolcd_init_leds(data, picolcd_out_report(REPORT_LED_STATE, hdev));
+	if (error)
+		goto err;
+
+	picolcd_init_devfs(data, picolcd_out_report(REPORT_EE_READ, hdev),
+			picolcd_out_report(REPORT_EE_WRITE, hdev),
+			picolcd_out_report(REPORT_READ_MEMORY, hdev),
+			picolcd_out_report(REPORT_WRITE_MEMORY, hdev),
+			picolcd_out_report(REPORT_RESET, hdev));
+	return 0;
+err:
+	picolcd_exit_leds(data);
+	picolcd_exit_backlight(data);
+	picolcd_exit_lcd(data);
+	picolcd_exit_framebuffer(data);
+	picolcd_exit_cir(data);
+	picolcd_exit_keys(data);
+	return error;
+}
+
+static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data)
+{
+	picolcd_init_devfs(data, NULL, NULL,
+			picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
+			picolcd_out_report(REPORT_BL_WRITE_MEMORY, hdev), NULL);
+	return 0;
+}
+
+static int picolcd_probe(struct hid_device *hdev,
+		     const struct hid_device_id *id)
+{
+	struct picolcd_data *data;
+	int error = -ENOMEM;
+
+	dbg_hid(PICOLCD_NAME " hardware probe...\n");
+
+	/*
+	 * Let's allocate the picolcd data structure, set some reasonable
+	 * defaults, and associate it with the device
+	 */
+	data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL);
+	if (data == NULL) {
+		hid_err(hdev, "can't allocate space for Minibox PicoLCD device data\n");
+		error = -ENOMEM;
+		goto err_no_cleanup;
+	}
+
+	spin_lock_init(&data->lock);
+	mutex_init(&data->mutex);
+	data->hdev = hdev;
+	data->opmode_delay = 5000;
+	if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
+		data->status |= PICOLCD_BOOTLOADER;
+	hid_set_drvdata(hdev, data);
+
+	/* Parse the device reports and start it up */
+	error = hid_parse(hdev);
+	if (error) {
+		hid_err(hdev, "device report parse failed\n");
+		goto err_cleanup_data;
+	}
+
+	error = hid_hw_start(hdev, 0);
+	if (error) {
+		hid_err(hdev, "hardware start failed\n");
+		goto err_cleanup_data;
+	}
+
+	error = hid_hw_open(hdev);
+	if (error) {
+		hid_err(hdev, "failed to open input interrupt pipe for key and IR events\n");
+		goto err_cleanup_hid_hw;
+	}
+
+	error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay);
+	if (error) {
+		hid_err(hdev, "failed to create sysfs attributes\n");
+		goto err_cleanup_hid_ll;
+	}
+
+	error = device_create_file(&hdev->dev, &dev_attr_operation_mode);
+	if (error) {
+		hid_err(hdev, "failed to create sysfs attributes\n");
+		goto err_cleanup_sysfs1;
+	}
+
+	if (data->status & PICOLCD_BOOTLOADER)
+		error = picolcd_probe_bootloader(hdev, data);
+	else
+		error = picolcd_probe_lcd(hdev, data);
+	if (error)
+		goto err_cleanup_sysfs2;
+
+	dbg_hid(PICOLCD_NAME " activated and initialized\n");
+	return 0;
+
+err_cleanup_sysfs2:
+	device_remove_file(&hdev->dev, &dev_attr_operation_mode);
+err_cleanup_sysfs1:
+	device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
+err_cleanup_hid_ll:
+	hid_hw_close(hdev);
+err_cleanup_hid_hw:
+	hid_hw_stop(hdev);
+err_cleanup_data:
+	kfree(data);
+err_no_cleanup:
+	hid_set_drvdata(hdev, NULL);
+
+	return error;
+}
+
+static void picolcd_remove(struct hid_device *hdev)
+{
+	struct picolcd_data *data = hid_get_drvdata(hdev);
+	unsigned long flags;
+
+	dbg_hid(PICOLCD_NAME " hardware remove...\n");
+	spin_lock_irqsave(&data->lock, flags);
+	data->status |= PICOLCD_FAILED;
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	picolcd_exit_devfs(data);
+	device_remove_file(&hdev->dev, &dev_attr_operation_mode);
+	device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
+	hid_hw_close(hdev);
+	hid_hw_stop(hdev);
+
+	/* Shortcut potential pending reply that will never arrive */
+	spin_lock_irqsave(&data->lock, flags);
+	if (data->pending)
+		complete(&data->pending->ready);
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	/* Cleanup LED */
+	picolcd_exit_leds(data);
+	/* Clean up the framebuffer */
+	picolcd_exit_backlight(data);
+	picolcd_exit_lcd(data);
+	picolcd_exit_framebuffer(data);
+	/* Cleanup input */
+	picolcd_exit_cir(data);
+	picolcd_exit_keys(data);
+
+	hid_set_drvdata(hdev, NULL);
+	mutex_destroy(&data->mutex);
+	/* Finally, clean up the picolcd data itself */
+	kfree(data);
+}
+
+static const struct hid_device_id picolcd_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, picolcd_devices);
+
+static struct hid_driver picolcd_driver = {
+	.name =          "hid-picolcd",
+	.id_table =      picolcd_devices,
+	.probe =         picolcd_probe,
+	.remove =        picolcd_remove,
+	.raw_event =     picolcd_raw_event,
+#ifdef CONFIG_PM
+	.suspend =       picolcd_suspend,
+	.resume =        picolcd_resume,
+	.reset_resume =  picolcd_reset_resume,
+#endif
+};
+
+static int __init picolcd_init(void)
+{
+	return hid_register_driver(&picolcd_driver);
+}
+
+static void __exit picolcd_exit(void)
+{
+	hid_unregister_driver(&picolcd_driver);
+}
+
+module_init(picolcd_init);
+module_exit(picolcd_exit);
+MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-picolcd_debugfs.c b/drivers/hid/hid-picolcd_debugfs.c
new file mode 100644
index 00000000000..4809aa1bdb9
--- /dev/null
+++ b/drivers/hid/hid-picolcd_debugfs.c
@@ -0,0 +1,899 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include <linux/hid-debug.h>
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+
+#include <linux/module.h>
+#include <linux/uaccess.h>
+
+#include "hid-picolcd.h"
+
+
+static int picolcd_debug_reset_show(struct seq_file *f, void *p)
+{
+	if (picolcd_fbinfo((struct picolcd_data *)f->private))
+		seq_printf(f, "all fb\n");
+	else
+		seq_printf(f, "all\n");
+	return 0;
+}
+
+static int picolcd_debug_reset_open(struct inode *inode, struct file *f)
+{
+	return single_open(f, picolcd_debug_reset_show, inode->i_private);
+}
+
+static ssize_t picolcd_debug_reset_write(struct file *f, const char __user *user_buf,
+		size_t count, loff_t *ppos)
+{
+	struct picolcd_data *data = ((struct seq_file *)f->private_data)->private;
+	char buf[32];
+	size_t cnt = min(count, sizeof(buf)-1);
+	if (copy_from_user(buf, user_buf, cnt))
+		return -EFAULT;
+
+	while (cnt > 0 && (buf[cnt-1] == ' ' || buf[cnt-1] == '\n'))
+		cnt--;
+	buf[cnt] = '\0';
+	if (strcmp(buf, "all") == 0) {
+		picolcd_reset(data->hdev);
+		picolcd_fb_reset(data, 1);
+	} else if (strcmp(buf, "fb") == 0) {
+		picolcd_fb_reset(data, 1);
+	} else {
+		return -EINVAL;
+	}
+	return count;
+}
+
+static const struct file_operations picolcd_debug_reset_fops = {
+	.owner    = THIS_MODULE,
+	.open     = picolcd_debug_reset_open,
+	.read     = seq_read,
+	.llseek   = seq_lseek,
+	.write    = picolcd_debug_reset_write,
+	.release  = single_release,
+};
+
+/*
+ * The "eeprom" file
+ */
+static ssize_t picolcd_debug_eeprom_read(struct file *f, char __user *u,
+		size_t s, loff_t *off)
+{
+	struct picolcd_data *data = f->private_data;
+	struct picolcd_pending *resp;
+	u8 raw_data[3];
+	ssize_t ret = -EIO;
+
+	if (s == 0)
+		return -EINVAL;
+	if (*off > 0x0ff)
+		return 0;
+
+	/* prepare buffer with info about what we want to read (addr & len) */
+	raw_data[0] = *off & 0xff;
+	raw_data[1] = (*off >> 8) & 0xff;
+	raw_data[2] = s < 20 ? s : 20;
+	if (*off + raw_data[2] > 0xff)
+		raw_data[2] = 0x100 - *off;
+	resp = picolcd_send_and_wait(data->hdev, REPORT_EE_READ, raw_data,
+			sizeof(raw_data));
+	if (!resp)
+		return -EIO;
+
+	if (resp->in_report && resp->in_report->id == REPORT_EE_DATA) {
+		/* successful read :) */
+		ret = resp->raw_data[2];
+		if (ret > s)
+			ret = s;
+		if (copy_to_user(u, resp->raw_data+3, ret))
+			ret = -EFAULT;
+		else
+			*off += ret;
+	} /* anything else is some kind of IO error */
+
+	kfree(resp);
+	return ret;
+}
+
+static ssize_t picolcd_debug_eeprom_write(struct file *f, const char __user *u,
+		size_t s, loff_t *off)
+{
+	struct picolcd_data *data = f->private_data;
+	struct picolcd_pending *resp;
+	ssize_t ret = -EIO;
+	u8 raw_data[23];
+
+	if (s == 0)
+		return -EINVAL;
+	if (*off > 0x0ff)
+		return -ENOSPC;
+
+	memset(raw_data, 0, sizeof(raw_data));
+	raw_data[0] = *off & 0xff;
+	raw_data[1] = (*off >> 8) & 0xff;
+	raw_data[2] = min_t(size_t, 20, s);
+	if (*off + raw_data[2] > 0xff)
+		raw_data[2] = 0x100 - *off;
+
+	if (copy_from_user(raw_data+3, u, min((u8)20, raw_data[2])))
+		return -EFAULT;
+	resp = picolcd_send_and_wait(data->hdev, REPORT_EE_WRITE, raw_data,
+			sizeof(raw_data));
+
+	if (!resp)
+		return -EIO;
+
+	if (resp->in_report && resp->in_report->id == REPORT_EE_DATA) {
+		/* check if written data matches */
+		if (memcmp(raw_data, resp->raw_data, 3+raw_data[2]) == 0) {
+			*off += raw_data[2];
+			ret = raw_data[2];
+		}
+	}
+	kfree(resp);
+	return ret;
+}
+
+/*
+ * Notes:
+ * - read/write happens in chunks of at most 20 bytes, it's up to userspace
+ *   to loop in order to get more data.
+ * - on write errors on otherwise correct write request the bytes
+ *   that should have been written are in undefined state.
+ */
+static const struct file_operations picolcd_debug_eeprom_fops = {
+	.owner    = THIS_MODULE,
+	.open     = simple_open,
+	.read     = picolcd_debug_eeprom_read,
+	.write    = picolcd_debug_eeprom_write,
+	.llseek   = generic_file_llseek,
+};
+
+/*
+ * The "flash" file
+ */
+/* record a flash address to buf (bounds check to be done by caller) */
+static int _picolcd_flash_setaddr(struct picolcd_data *data, u8 *buf, long off)
+{
+	buf[0] = off & 0xff;
+	buf[1] = (off >> 8) & 0xff;
+	if (data->addr_sz == 3)
+		buf[2] = (off >> 16) & 0xff;
+	return data->addr_sz == 2 ? 2 : 3;
+}
+
+/* read a given size of data (bounds check to be done by caller) */
+static ssize_t _picolcd_flash_read(struct picolcd_data *data, int report_id,
+		char __user *u, size_t s, loff_t *off)
+{
+	struct picolcd_pending *resp;
+	u8 raw_data[4];
+	ssize_t ret = 0;
+	int len_off, err = -EIO;
+
+	while (s > 0) {
+		err = -EIO;
+		len_off = _picolcd_flash_setaddr(data, raw_data, *off);
+		raw_data[len_off] = s > 32 ? 32 : s;
+		resp = picolcd_send_and_wait(data->hdev, report_id, raw_data, len_off+1);
+		if (!resp || !resp->in_report)
+			goto skip;
+		if (resp->in_report->id == REPORT_MEMORY ||
+			resp->in_report->id == REPORT_BL_READ_MEMORY) {
+			if (memcmp(raw_data, resp->raw_data, len_off+1) != 0)
+				goto skip;
+			if (copy_to_user(u+ret, resp->raw_data+len_off+1, raw_data[len_off])) {
+				err = -EFAULT;
+				goto skip;
+			}
+			*off += raw_data[len_off];
+			s    -= raw_data[len_off];
+			ret  += raw_data[len_off];
+			err   = 0;
+		}
+skip:
+		kfree(resp);
+		if (err)
+			return ret > 0 ? ret : err;
+	}
+	return ret;
+}
+
+static ssize_t picolcd_debug_flash_read(struct file *f, char __user *u,
+		size_t s, loff_t *off)
+{
+	struct picolcd_data *data = f->private_data;
+
+	if (s == 0)
+		return -EINVAL;
+	if (*off > 0x05fff)
+		return 0;
+	if (*off + s > 0x05fff)
+		s = 0x06000 - *off;
+
+	if (data->status & PICOLCD_BOOTLOADER)
+		return _picolcd_flash_read(data, REPORT_BL_READ_MEMORY, u, s, off);
+	else
+		return _picolcd_flash_read(data, REPORT_READ_MEMORY, u, s, off);
+}
+
+/* erase block aligned to 64bytes boundary */
+static ssize_t _picolcd_flash_erase64(struct picolcd_data *data, int report_id,
+		loff_t *off)
+{
+	struct picolcd_pending *resp;
+	u8 raw_data[3];
+	int len_off;
+	ssize_t ret = -EIO;
+
+	if (*off & 0x3f)
+		return -EINVAL;
+
+	len_off = _picolcd_flash_setaddr(data, raw_data, *off);
+	resp = picolcd_send_and_wait(data->hdev, report_id, raw_data, len_off);
+	if (!resp || !resp->in_report)
+		goto skip;
+	if (resp->in_report->id == REPORT_MEMORY ||
+		resp->in_report->id == REPORT_BL_ERASE_MEMORY) {
+		if (memcmp(raw_data, resp->raw_data, len_off) != 0)
+			goto skip;
+		ret = 0;
+	}
+skip:
+	kfree(resp);
+	return ret;
+}
+
+/* write a given size of data (bounds check to be done by caller) */
+static ssize_t _picolcd_flash_write(struct picolcd_data *data, int report_id,
+		const char __user *u, size_t s, loff_t *off)
+{
+	struct picolcd_pending *resp;
+	u8 raw_data[36];
+	ssize_t ret = 0;
+	int len_off, err = -EIO;
+
+	while (s > 0) {
+		err = -EIO;
+		len_off = _picolcd_flash_setaddr(data, raw_data, *off);
+		raw_data[len_off] = s > 32 ? 32 : s;
+		if (copy_from_user(raw_data+len_off+1, u, raw_data[len_off])) {
+			err = -EFAULT;
+			break;
+		}
+		resp = picolcd_send_and_wait(data->hdev, report_id, raw_data,
+				len_off+1+raw_data[len_off]);
+		if (!resp || !resp->in_report)
+			goto skip;
+		if (resp->in_report->id == REPORT_MEMORY ||
+			resp->in_report->id == REPORT_BL_WRITE_MEMORY) {
+			if (memcmp(raw_data, resp->raw_data, len_off+1+raw_data[len_off]) != 0)
+				goto skip;
+			*off += raw_data[len_off];
+			s    -= raw_data[len_off];
+			ret  += raw_data[len_off];
+			err   = 0;
+		}
+skip:
+		kfree(resp);
+		if (err)
+			break;
+	}
+	return ret > 0 ? ret : err;
+}
+
+static ssize_t picolcd_debug_flash_write(struct file *f, const char __user *u,
+		size_t s, loff_t *off)
+{
+	struct picolcd_data *data = f->private_data;
+	ssize_t err, ret = 0;
+	int report_erase, report_write;
+
+	if (s == 0)
+		return -EINVAL;
+	if (*off > 0x5fff)
+		return -ENOSPC;
+	if (s & 0x3f)
+		return -EINVAL;
+	if (*off & 0x3f)
+		return -EINVAL;
+
+	if (data->status & PICOLCD_BOOTLOADER) {
+		report_erase = REPORT_BL_ERASE_MEMORY;
+		report_write = REPORT_BL_WRITE_MEMORY;
+	} else {
+		report_erase = REPORT_ERASE_MEMORY;
+		report_write = REPORT_WRITE_MEMORY;
+	}
+	mutex_lock(&data->mutex_flash);
+	while (s > 0) {
+		err = _picolcd_flash_erase64(data, report_erase, off);
+		if (err)
+			break;
+		err = _picolcd_flash_write(data, report_write, u, 64, off);
+		if (err < 0)
+			break;
+		ret += err;
+		*off += err;
+		s -= err;
+		if (err != 64)
+			break;
+	}
+	mutex_unlock(&data->mutex_flash);
+	return ret > 0 ? ret : err;
+}
+
+/*
+ * Notes:
+ * - concurrent writing is prevented by mutex and all writes must be
+ *   n*64 bytes and 64-byte aligned, each write being preceded by an
+ *   ERASE which erases a 64byte block.
+ *   If less than requested was written or an error is returned for an
+ *   otherwise correct write request the next 64-byte block which should
+ *   have been written is in undefined state (mostly: original, erased,
+ *   (half-)written with write error)
+ * - reading can happen without special restriction
+ */
+static const struct file_operations picolcd_debug_flash_fops = {
+	.owner    = THIS_MODULE,
+	.open     = simple_open,
+	.read     = picolcd_debug_flash_read,
+	.write    = picolcd_debug_flash_write,
+	.llseek   = generic_file_llseek,
+};
+
+
+/*
+ * Helper code for HID report level dumping/debugging
+ */
+static const char * const error_codes[] = {
+	"success", "parameter missing", "data_missing", "block readonly",
+	"block not erasable", "block too big", "section overflow",
+	"invalid command length", "invalid data length",
+};
+
+static void dump_buff_as_hex(char *dst, size_t dst_sz, const u8 *data,
+		const size_t data_len)
+{
+	int i, j;
+	for (i = j = 0; i < data_len && j + 4 < dst_sz; i++) {
+		dst[j++] = hex_asc[(data[i] >> 4) & 0x0f];
+		dst[j++] = hex_asc[data[i] & 0x0f];
+		dst[j++] = ' ';
+	}
+	dst[j]   = '\0';
+	if (j > 0)
+		dst[j-1] = '\n';
+	if (i < data_len && j > 2)
+		dst[j-2] = dst[j-3] = '.';
+}
+
+void picolcd_debug_out_report(struct picolcd_data *data,
+		struct hid_device *hdev, struct hid_report *report)
+{
+	u8 raw_data[70];
+	int raw_size = (report->size >> 3) + 1;
+	char *buff;
+#define BUFF_SZ 256
+
+	/* Avoid unnecessary overhead if debugfs is disabled */
+	if (list_empty(&hdev->debug_list))
+		return;
+
+	buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
+	if (!buff)
+		return;
+
+	snprintf(buff, BUFF_SZ, "\nout report %d (size %d) =  ",
+			report->id, raw_size);
+	hid_debug_event(hdev, buff);
+	if (raw_size + 5 > sizeof(raw_data)) {
+		kfree(buff);
+		hid_debug_event(hdev, " TOO BIG\n");
+		return;
+	} else {
+		raw_data[0] = report->id;
+		hid_output_report(report, raw_data);
+		dump_buff_as_hex(buff, BUFF_SZ, raw_data, raw_size);
+		hid_debug_event(hdev, buff);
+	}
+
+	switch (report->id) {
+	case REPORT_LED_STATE:
+		/* 1 data byte with GPO state */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_LED_STATE", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tGPO state: 0x%02x\n", raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_BRIGHTNESS:
+		/* 1 data byte with brightness */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_BRIGHTNESS", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tBrightness: 0x%02x\n", raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_CONTRAST:
+		/* 1 data byte with contrast */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_CONTRAST", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tContrast: 0x%02x\n", raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_RESET:
+		/* 2 data bytes with reset duration in ms */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_RESET", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tDuration: 0x%02x%02x (%dms)\n",
+				raw_data[2], raw_data[1], raw_data[2] << 8 | raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_LCD_CMD:
+		/* 63 data bytes with LCD commands */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_LCD_CMD", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		/* TODO: format decoding */
+		break;
+	case REPORT_LCD_DATA:
+		/* 63 data bytes with LCD data */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_LCD_CMD", report->id, raw_size-1);
+		/* TODO: format decoding */
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_LCD_CMD_DATA:
+		/* 63 data bytes with LCD commands and data */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_LCD_CMD", report->id, raw_size-1);
+		/* TODO: format decoding */
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_EE_READ:
+		/* 3 data bytes with read area description */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_EE_READ", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
+				raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_EE_WRITE:
+		/* 3+1..20 data bytes with write area description */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_EE_WRITE", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
+				raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
+		hid_debug_event(hdev, buff);
+		if (raw_data[3] == 0) {
+			snprintf(buff, BUFF_SZ, "\tNo data\n");
+		} else if (raw_data[3] + 4 <= raw_size) {
+			snprintf(buff, BUFF_SZ, "\tData: ");
+			hid_debug_event(hdev, buff);
+			dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
+		} else {
+			snprintf(buff, BUFF_SZ, "\tData overflowed\n");
+		}
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_ERASE_MEMORY:
+	case REPORT_BL_ERASE_MEMORY:
+		/* 3 data bytes with pointer inside erase block */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_ERASE_MEMORY", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		switch (data->addr_sz) {
+		case 2:
+			snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x\n",
+					raw_data[2], raw_data[1]);
+			break;
+		case 3:
+			snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x%02x\n",
+					raw_data[3], raw_data[2], raw_data[1]);
+			break;
+		default:
+			snprintf(buff, BUFF_SZ, "\tNot supported\n");
+		}
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_READ_MEMORY:
+	case REPORT_BL_READ_MEMORY:
+		/* 4 data bytes with read area description */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_READ_MEMORY", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		switch (data->addr_sz) {
+		case 2:
+			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
+					raw_data[2], raw_data[1]);
+			hid_debug_event(hdev, buff);
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
+			break;
+		case 3:
+			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
+					raw_data[3], raw_data[2], raw_data[1]);
+			hid_debug_event(hdev, buff);
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
+			break;
+		default:
+			snprintf(buff, BUFF_SZ, "\tNot supported\n");
+		}
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_WRITE_MEMORY:
+	case REPORT_BL_WRITE_MEMORY:
+		/* 4+1..32 data bytes with write adrea description */
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_WRITE_MEMORY", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		switch (data->addr_sz) {
+		case 2:
+			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
+					raw_data[2], raw_data[1]);
+			hid_debug_event(hdev, buff);
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
+			hid_debug_event(hdev, buff);
+			if (raw_data[3] == 0) {
+				snprintf(buff, BUFF_SZ, "\tNo data\n");
+			} else if (raw_data[3] + 4 <= raw_size) {
+				snprintf(buff, BUFF_SZ, "\tData: ");
+				hid_debug_event(hdev, buff);
+				dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
+			} else {
+				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
+			}
+			break;
+		case 3:
+			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
+					raw_data[3], raw_data[2], raw_data[1]);
+			hid_debug_event(hdev, buff);
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
+			hid_debug_event(hdev, buff);
+			if (raw_data[4] == 0) {
+				snprintf(buff, BUFF_SZ, "\tNo data\n");
+			} else if (raw_data[4] + 5 <= raw_size) {
+				snprintf(buff, BUFF_SZ, "\tData: ");
+				hid_debug_event(hdev, buff);
+				dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
+			} else {
+				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
+			}
+			break;
+		default:
+			snprintf(buff, BUFF_SZ, "\tNot supported\n");
+		}
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_SPLASH_RESTART:
+		/* TODO */
+		break;
+	case REPORT_EXIT_KEYBOARD:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_EXIT_KEYBOARD", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
+				raw_data[1] | (raw_data[2] << 8),
+				raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_VERSION:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_VERSION", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_DEVID:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_DEVID", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_SPLASH_SIZE:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_SPLASH_SIZE", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_HOOK_VERSION:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_HOOK_VERSION", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_EXIT_FLASHER:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"REPORT_VERSION", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
+				raw_data[1] | (raw_data[2] << 8),
+				raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	default:
+		snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
+			"<unknown>", report->id, raw_size-1);
+		hid_debug_event(hdev, buff);
+		break;
+	}
+	wake_up_interruptible(&hdev->debug_wait);
+	kfree(buff);
+}
+
+void picolcd_debug_raw_event(struct picolcd_data *data,
+		struct hid_device *hdev, struct hid_report *report,
+		u8 *raw_data, int size)
+{
+	char *buff;
+
+#define BUFF_SZ 256
+	/* Avoid unnecessary overhead if debugfs is disabled */
+	if (list_empty(&hdev->debug_list))
+		return;
+
+	buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
+	if (!buff)
+		return;
+
+	switch (report->id) {
+	case REPORT_ERROR_CODE:
+		/* 2 data bytes with affected report and error code */
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_ERROR_CODE", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		if (raw_data[2] < ARRAY_SIZE(error_codes))
+			snprintf(buff, BUFF_SZ, "\tError code 0x%02x (%s) in reply to report 0x%02x\n",
+					raw_data[2], error_codes[raw_data[2]], raw_data[1]);
+		else
+			snprintf(buff, BUFF_SZ, "\tError code 0x%02x in reply to report 0x%02x\n",
+					raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_KEY_STATE:
+		/* 2 data bytes with key state */
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_KEY_STATE", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		if (raw_data[1] == 0)
+			snprintf(buff, BUFF_SZ, "\tNo key pressed\n");
+		else if (raw_data[2] == 0)
+			snprintf(buff, BUFF_SZ, "\tOne key pressed: 0x%02x (%d)\n",
+					raw_data[1], raw_data[1]);
+		else
+			snprintf(buff, BUFF_SZ, "\tTwo keys pressed: 0x%02x (%d), 0x%02x (%d)\n",
+					raw_data[1], raw_data[1], raw_data[2], raw_data[2]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_IR_DATA:
+		/* Up to 20 byes of IR scancode data */
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_IR_DATA", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		if (raw_data[1] == 0) {
+			snprintf(buff, BUFF_SZ, "\tUnexpectedly 0 data length\n");
+			hid_debug_event(hdev, buff);
+		} else if (raw_data[1] + 1 <= size) {
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n\tIR Data: ",
+					raw_data[1]);
+			hid_debug_event(hdev, buff);
+			dump_buff_as_hex(buff, BUFF_SZ, raw_data+2, raw_data[1]);
+			hid_debug_event(hdev, buff);
+		} else {
+			snprintf(buff, BUFF_SZ, "\tOverflowing data length: %d\n",
+					raw_data[1]-1);
+			hid_debug_event(hdev, buff);
+		}
+		break;
+	case REPORT_EE_DATA:
+		/* Data buffer in response to REPORT_EE_READ or REPORT_EE_WRITE */
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_EE_DATA", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
+				raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
+		hid_debug_event(hdev, buff);
+		if (raw_data[3] == 0) {
+			snprintf(buff, BUFF_SZ, "\tNo data\n");
+			hid_debug_event(hdev, buff);
+		} else if (raw_data[3] + 4 <= size) {
+			snprintf(buff, BUFF_SZ, "\tData: ");
+			hid_debug_event(hdev, buff);
+			dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
+			hid_debug_event(hdev, buff);
+		} else {
+			snprintf(buff, BUFF_SZ, "\tData overflowed\n");
+			hid_debug_event(hdev, buff);
+		}
+		break;
+	case REPORT_MEMORY:
+		/* Data buffer in response to REPORT_READ_MEMORY or REPORT_WRTIE_MEMORY */
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_MEMORY", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		switch (data->addr_sz) {
+		case 2:
+			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
+					raw_data[2], raw_data[1]);
+			hid_debug_event(hdev, buff);
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
+			hid_debug_event(hdev, buff);
+			if (raw_data[3] == 0) {
+				snprintf(buff, BUFF_SZ, "\tNo data\n");
+			} else if (raw_data[3] + 4 <= size) {
+				snprintf(buff, BUFF_SZ, "\tData: ");
+				hid_debug_event(hdev, buff);
+				dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
+			} else {
+				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
+			}
+			break;
+		case 3:
+			snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
+					raw_data[3], raw_data[2], raw_data[1]);
+			hid_debug_event(hdev, buff);
+			snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
+			hid_debug_event(hdev, buff);
+			if (raw_data[4] == 0) {
+				snprintf(buff, BUFF_SZ, "\tNo data\n");
+			} else if (raw_data[4] + 5 <= size) {
+				snprintf(buff, BUFF_SZ, "\tData: ");
+				hid_debug_event(hdev, buff);
+				dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
+			} else {
+				snprintf(buff, BUFF_SZ, "\tData overflowed\n");
+			}
+			break;
+		default:
+			snprintf(buff, BUFF_SZ, "\tNot supported\n");
+		}
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_VERSION:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_VERSION", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
+				raw_data[2], raw_data[1]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_BL_ERASE_MEMORY:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_BL_ERASE_MEMORY", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		/* TODO */
+		break;
+	case REPORT_BL_READ_MEMORY:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_BL_READ_MEMORY", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		/* TODO */
+		break;
+	case REPORT_BL_WRITE_MEMORY:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_BL_WRITE_MEMORY", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		/* TODO */
+		break;
+	case REPORT_DEVID:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_DEVID", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tSerial: 0x%02x%02x%02x%02x\n",
+				raw_data[1], raw_data[2], raw_data[3], raw_data[4]);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tType: 0x%02x\n",
+				raw_data[5]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_SPLASH_SIZE:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_SPLASH_SIZE", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tTotal splash space: %d\n",
+				(raw_data[2] << 8) | raw_data[1]);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tUsed splash space: %d\n",
+				(raw_data[4] << 8) | raw_data[3]);
+		hid_debug_event(hdev, buff);
+		break;
+	case REPORT_HOOK_VERSION:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"REPORT_HOOK_VERSION", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
+				raw_data[1], raw_data[2]);
+		hid_debug_event(hdev, buff);
+		break;
+	default:
+		snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
+			"<unknown>", report->id, size-1);
+		hid_debug_event(hdev, buff);
+		break;
+	}
+	wake_up_interruptible(&hdev->debug_wait);
+	kfree(buff);
+}
+
+void picolcd_init_devfs(struct picolcd_data *data,
+		struct hid_report *eeprom_r, struct hid_report *eeprom_w,
+		struct hid_report *flash_r, struct hid_report *flash_w,
+		struct hid_report *reset)
+{
+	struct hid_device *hdev = data->hdev;
+
+	mutex_init(&data->mutex_flash);
+
+	/* reset */
+	if (reset)
+		data->debug_reset = debugfs_create_file("reset", 0600,
+				hdev->debug_dir, data, &picolcd_debug_reset_fops);
+
+	/* eeprom */
+	if (eeprom_r || eeprom_w)
+		data->debug_eeprom = debugfs_create_file("eeprom",
+			(eeprom_w ? S_IWUSR : 0) | (eeprom_r ? S_IRUSR : 0),
+			hdev->debug_dir, data, &picolcd_debug_eeprom_fops);
+
+	/* flash */
+	if (flash_r && flash_r->maxfield == 1 && flash_r->field[0]->report_size == 8)
+		data->addr_sz = flash_r->field[0]->report_count - 1;
+	else
+		data->addr_sz = -1;
+	if (data->addr_sz == 2 || data->addr_sz == 3) {
+		data->debug_flash = debugfs_create_file("flash",
+			(flash_w ? S_IWUSR : 0) | (flash_r ? S_IRUSR : 0),
+			hdev->debug_dir, data, &picolcd_debug_flash_fops);
+	} else if (flash_r || flash_w)
+		hid_warn(hdev, "Unexpected FLASH access reports, please submit rdesc for review\n");
+}
+
+void picolcd_exit_devfs(struct picolcd_data *data)
+{
+	struct dentry *dent;
+
+	dent = data->debug_reset;
+	data->debug_reset = NULL;
+	if (dent)
+		debugfs_remove(dent);
+	dent = data->debug_eeprom;
+	data->debug_eeprom = NULL;
+	if (dent)
+		debugfs_remove(dent);
+	dent = data->debug_flash;
+	data->debug_flash = NULL;
+	if (dent)
+		debugfs_remove(dent);
+	mutex_destroy(&data->mutex_flash);
+}
+
diff --git a/drivers/hid/hid-picolcd_fb.c b/drivers/hid/hid-picolcd_fb.c
new file mode 100644
index 00000000000..eb003574b63
--- /dev/null
+++ b/drivers/hid/hid-picolcd_fb.c
@@ -0,0 +1,615 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include <linux/vmalloc.h>
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/module.h>
+
+#include "hid-picolcd.h"
+
+/* Framebuffer
+ *
+ * The PicoLCD use a Topway LCD module of 256x64 pixel
+ * This display area is tiled over 4 controllers with 8 tiles
+ * each. Each tile has 8x64 pixel, each data byte representing
+ * a 1-bit wide vertical line of the tile.
+ *
+ * The display can be updated at a tile granularity.
+ *
+ *       Chip 1           Chip 2           Chip 3           Chip 4
+ * +----------------+----------------+----------------+----------------+
+ * |     Tile 1     |     Tile 1     |     Tile 1     |     Tile 1     |
+ * +----------------+----------------+----------------+----------------+
+ * |     Tile 2     |     Tile 2     |     Tile 2     |     Tile 2     |
+ * +----------------+----------------+----------------+----------------+
+ *                                  ...
+ * +----------------+----------------+----------------+----------------+
+ * |     Tile 8     |     Tile 8     |     Tile 8     |     Tile 8     |
+ * +----------------+----------------+----------------+----------------+
+ */
+#define PICOLCDFB_NAME "picolcdfb"
+#define PICOLCDFB_WIDTH (256)
+#define PICOLCDFB_HEIGHT (64)
+#define PICOLCDFB_SIZE (PICOLCDFB_WIDTH * PICOLCDFB_HEIGHT / 8)
+
+#define PICOLCDFB_UPDATE_RATE_LIMIT   10
+#define PICOLCDFB_UPDATE_RATE_DEFAULT  2
+
+/* Framebuffer visual structures */
+static const struct fb_fix_screeninfo picolcdfb_fix = {
+	.id          = PICOLCDFB_NAME,
+	.type        = FB_TYPE_PACKED_PIXELS,
+	.visual      = FB_VISUAL_MONO01,
+	.xpanstep    = 0,
+	.ypanstep    = 0,
+	.ywrapstep   = 0,
+	.line_length = PICOLCDFB_WIDTH / 8,
+	.accel       = FB_ACCEL_NONE,
+};
+
+static const struct fb_var_screeninfo picolcdfb_var = {
+	.xres           = PICOLCDFB_WIDTH,
+	.yres           = PICOLCDFB_HEIGHT,
+	.xres_virtual   = PICOLCDFB_WIDTH,
+	.yres_virtual   = PICOLCDFB_HEIGHT,
+	.width          = 103,
+	.height         = 26,
+	.bits_per_pixel = 1,
+	.grayscale      = 1,
+	.red            = {
+		.offset = 0,
+		.length = 1,
+		.msb_right = 0,
+	},
+	.green          = {
+		.offset = 0,
+		.length = 1,
+		.msb_right = 0,
+	},
+	.blue           = {
+		.offset = 0,
+		.length = 1,
+		.msb_right = 0,
+	},
+	.transp         = {
+		.offset = 0,
+		.length = 0,
+		.msb_right = 0,
+	},
+};
+
+/* Send a given tile to PicoLCD */
+static int picolcd_fb_send_tile(struct picolcd_data *data, u8 *vbitmap,
+		int chip, int tile)
+{
+	struct hid_report *report1, *report2;
+	unsigned long flags;
+	u8 *tdata;
+	int i;
+
+	report1 = picolcd_out_report(REPORT_LCD_CMD_DATA, data->hdev);
+	if (!report1 || report1->maxfield != 1)
+		return -ENODEV;
+	report2 = picolcd_out_report(REPORT_LCD_DATA, data->hdev);
+	if (!report2 || report2->maxfield != 1)
+		return -ENODEV;
+
+	spin_lock_irqsave(&data->lock, flags);
+	if ((data->status & PICOLCD_FAILED)) {
+		spin_unlock_irqrestore(&data->lock, flags);
+		return -ENODEV;
+	}
+	hid_set_field(report1->field[0],  0, chip << 2);
+	hid_set_field(report1->field[0],  1, 0x02);
+	hid_set_field(report1->field[0],  2, 0x00);
+	hid_set_field(report1->field[0],  3, 0x00);
+	hid_set_field(report1->field[0],  4, 0xb8 | tile);
+	hid_set_field(report1->field[0],  5, 0x00);
+	hid_set_field(report1->field[0],  6, 0x00);
+	hid_set_field(report1->field[0],  7, 0x40);
+	hid_set_field(report1->field[0],  8, 0x00);
+	hid_set_field(report1->field[0],  9, 0x00);
+	hid_set_field(report1->field[0], 10,   32);
+
+	hid_set_field(report2->field[0],  0, (chip << 2) | 0x01);
+	hid_set_field(report2->field[0],  1, 0x00);
+	hid_set_field(report2->field[0],  2, 0x00);
+	hid_set_field(report2->field[0],  3,   32);
+
+	tdata = vbitmap + (tile * 4 + chip) * 64;
+	for (i = 0; i < 64; i++)
+		if (i < 32)
+			hid_set_field(report1->field[0], 11 + i, tdata[i]);
+		else
+			hid_set_field(report2->field[0], 4 + i - 32, tdata[i]);
+
+	usbhid_submit_report(data->hdev, report1, USB_DIR_OUT);
+	usbhid_submit_report(data->hdev, report2, USB_DIR_OUT);
+	spin_unlock_irqrestore(&data->lock, flags);
+	return 0;
+}
+
+/* Translate a single tile*/
+static int picolcd_fb_update_tile(u8 *vbitmap, const u8 *bitmap, int bpp,
+		int chip, int tile)
+{
+	int i, b, changed = 0;
+	u8 tdata[64];
+	u8 *vdata = vbitmap + (tile * 4 + chip) * 64;
+
+	if (bpp == 1) {
+		for (b = 7; b >= 0; b--) {
+			const u8 *bdata = bitmap + tile * 256 + chip * 8 + b * 32;
+			for (i = 0; i < 64; i++) {
+				tdata[i] <<= 1;
+				tdata[i] |= (bdata[i/8] >> (i % 8)) & 0x01;
+			}
+		}
+	} else if (bpp == 8) {
+		for (b = 7; b >= 0; b--) {
+			const u8 *bdata = bitmap + (tile * 256 + chip * 8 + b * 32) * 8;
+			for (i = 0; i < 64; i++) {
+				tdata[i] <<= 1;
+				tdata[i] |= (bdata[i] & 0x80) ? 0x01 : 0x00;
+			}
+		}
+	} else {
+		/* Oops, we should never get here! */
+		WARN_ON(1);
+		return 0;
+	}
+
+	for (i = 0; i < 64; i++)
+		if (tdata[i] != vdata[i]) {
+			changed = 1;
+			vdata[i] = tdata[i];
+		}
+	return changed;
+}
+
+void picolcd_fb_refresh(struct picolcd_data *data)
+{
+	if (data->fb_info)
+		schedule_delayed_work(&data->fb_info->deferred_work, 0);
+}
+
+/* Reconfigure LCD display */
+int picolcd_fb_reset(struct picolcd_data *data, int clear)
+{
+	struct hid_report *report = picolcd_out_report(REPORT_LCD_CMD, data->hdev);
+	struct picolcd_fb_data *fbdata = data->fb_info->par;
+	int i, j;
+	unsigned long flags;
+	static const u8 mapcmd[8] = { 0x00, 0x02, 0x00, 0x64, 0x3f, 0x00, 0x64, 0xc0 };
+
+	if (!report || report->maxfield != 1)
+		return -ENODEV;
+
+	spin_lock_irqsave(&data->lock, flags);
+	for (i = 0; i < 4; i++) {
+		for (j = 0; j < report->field[0]->maxusage; j++)
+			if (j == 0)
+				hid_set_field(report->field[0], j, i << 2);
+			else if (j < sizeof(mapcmd))
+				hid_set_field(report->field[0], j, mapcmd[j]);
+			else
+				hid_set_field(report->field[0], j, 0);
+		usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
+	}
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	if (clear) {
+		memset(fbdata->vbitmap, 0, PICOLCDFB_SIZE);
+		memset(fbdata->bitmap, 0, PICOLCDFB_SIZE*fbdata->bpp);
+	}
+	fbdata->force = 1;
+
+	/* schedule first output of framebuffer */
+	if (fbdata->ready)
+		schedule_delayed_work(&data->fb_info->deferred_work, 0);
+	else
+		fbdata->ready = 1;
+
+	return 0;
+}
+
+/* Update fb_vbitmap from the screen_base and send changed tiles to device */
+static void picolcd_fb_update(struct fb_info *info)
+{
+	int chip, tile, n;
+	unsigned long flags;
+	struct picolcd_fb_data *fbdata = info->par;
+	struct picolcd_data *data;
+
+	mutex_lock(&info->lock);
+
+	spin_lock_irqsave(&fbdata->lock, flags);
+	if (!fbdata->ready && fbdata->picolcd)
+		picolcd_fb_reset(fbdata->picolcd, 0);
+	spin_unlock_irqrestore(&fbdata->lock, flags);
+
+	/*
+	 * Translate the framebuffer into the format needed by the PicoLCD.
+	 * See display layout above.
+	 * Do this one tile after the other and push those tiles that changed.
+	 *
+	 * Wait for our IO to complete as otherwise we might flood the queue!
+	 */
+	n = 0;
+	for (chip = 0; chip < 4; chip++)
+		for (tile = 0; tile < 8; tile++) {
+			if (!fbdata->force && !picolcd_fb_update_tile(
+					fbdata->vbitmap, fbdata->bitmap,
+					fbdata->bpp, chip, tile))
+				continue;
+			n += 2;
+			if (n >= HID_OUTPUT_FIFO_SIZE / 2) {
+				spin_lock_irqsave(&fbdata->lock, flags);
+				data = fbdata->picolcd;
+				spin_unlock_irqrestore(&fbdata->lock, flags);
+				mutex_unlock(&info->lock);
+				if (!data)
+					return;
+				usbhid_wait_io(data->hdev);
+				mutex_lock(&info->lock);
+				n = 0;
+			}
+			spin_lock_irqsave(&fbdata->lock, flags);
+			data = fbdata->picolcd;
+			spin_unlock_irqrestore(&fbdata->lock, flags);
+			if (!data || picolcd_fb_send_tile(data,
+					fbdata->vbitmap, chip, tile))
+				goto out;
+		}
+	fbdata->force = false;
+	if (n) {
+		spin_lock_irqsave(&fbdata->lock, flags);
+		data = fbdata->picolcd;
+		spin_unlock_irqrestore(&fbdata->lock, flags);
+		mutex_unlock(&info->lock);
+		if (data)
+			usbhid_wait_io(data->hdev);
+		return;
+	}
+out:
+	mutex_unlock(&info->lock);
+}
+
+/* Stub to call the system default and update the image on the picoLCD */
+static void picolcd_fb_fillrect(struct fb_info *info,
+		const struct fb_fillrect *rect)
+{
+	if (!info->par)
+		return;
+	sys_fillrect(info, rect);
+
+	schedule_delayed_work(&info->deferred_work, 0);
+}
+
+/* Stub to call the system default and update the image on the picoLCD */
+static void picolcd_fb_copyarea(struct fb_info *info,
+		const struct fb_copyarea *area)
+{
+	if (!info->par)
+		return;
+	sys_copyarea(info, area);
+
+	schedule_delayed_work(&info->deferred_work, 0);
+}
+
+/* Stub to call the system default and update the image on the picoLCD */
+static void picolcd_fb_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+	if (!info->par)
+		return;
+	sys_imageblit(info, image);
+
+	schedule_delayed_work(&info->deferred_work, 0);
+}
+
+/*
+ * this is the slow path from userspace. they can seek and write to
+ * the fb. it's inefficient to do anything less than a full screen draw
+ */
+static ssize_t picolcd_fb_write(struct fb_info *info, const char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	ssize_t ret;
+	if (!info->par)
+		return -ENODEV;
+	ret = fb_sys_write(info, buf, count, ppos);
+	if (ret >= 0)
+		schedule_delayed_work(&info->deferred_work, 0);
+	return ret;
+}
+
+static int picolcd_fb_blank(int blank, struct fb_info *info)
+{
+	/* We let fb notification do this for us via lcd/backlight device */
+	return 0;
+}
+
+static void picolcd_fb_destroy(struct fb_info *info)
+{
+	struct picolcd_fb_data *fbdata = info->par;
+
+	/* make sure no work is deferred */
+	fb_deferred_io_cleanup(info);
+
+	/* No thridparty should ever unregister our framebuffer! */
+	WARN_ON(fbdata->picolcd != NULL);
+
+	vfree((u8 *)info->fix.smem_start);
+	framebuffer_release(info);
+}
+
+static int picolcd_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+	__u32 bpp      = var->bits_per_pixel;
+	__u32 activate = var->activate;
+
+	/* only allow 1/8 bit depth (8-bit is grayscale) */
+	*var = picolcdfb_var;
+	var->activate = activate;
+	if (bpp >= 8) {
+		var->bits_per_pixel = 8;
+		var->red.length     = 8;
+		var->green.length   = 8;
+		var->blue.length    = 8;
+	} else {
+		var->bits_per_pixel = 1;
+		var->red.length     = 1;
+		var->green.length   = 1;
+		var->blue.length    = 1;
+	}
+	return 0;
+}
+
+static int picolcd_set_par(struct fb_info *info)
+{
+	struct picolcd_fb_data *fbdata = info->par;
+	u8 *tmp_fb, *o_fb;
+	if (info->var.bits_per_pixel == fbdata->bpp)
+		return 0;
+	/* switch between 1/8 bit depths */
+	if (info->var.bits_per_pixel != 1 && info->var.bits_per_pixel != 8)
+		return -EINVAL;
+
+	o_fb   = fbdata->bitmap;
+	tmp_fb = kmalloc(PICOLCDFB_SIZE*info->var.bits_per_pixel, GFP_KERNEL);
+	if (!tmp_fb)
+		return -ENOMEM;
+
+	/* translate FB content to new bits-per-pixel */
+	if (info->var.bits_per_pixel == 1) {
+		int i, b;
+		for (i = 0; i < PICOLCDFB_SIZE; i++) {
+			u8 p = 0;
+			for (b = 0; b < 8; b++) {
+				p <<= 1;
+				p |= o_fb[i*8+b] ? 0x01 : 0x00;
+			}
+			tmp_fb[i] = p;
+		}
+		memcpy(o_fb, tmp_fb, PICOLCDFB_SIZE);
+		info->fix.visual = FB_VISUAL_MONO01;
+		info->fix.line_length = PICOLCDFB_WIDTH / 8;
+	} else {
+		int i;
+		memcpy(tmp_fb, o_fb, PICOLCDFB_SIZE);
+		for (i = 0; i < PICOLCDFB_SIZE * 8; i++)
+			o_fb[i] = tmp_fb[i/8] & (0x01 << (7 - i % 8)) ? 0xff : 0x00;
+		info->fix.visual = FB_VISUAL_DIRECTCOLOR;
+		info->fix.line_length = PICOLCDFB_WIDTH;
+	}
+
+	kfree(tmp_fb);
+	fbdata->bpp = info->var.bits_per_pixel;
+	return 0;
+}
+
+/* Note this can't be const because of struct fb_info definition */
+static struct fb_ops picolcdfb_ops = {
+	.owner        = THIS_MODULE,
+	.fb_destroy   = picolcd_fb_destroy,
+	.fb_read      = fb_sys_read,
+	.fb_write     = picolcd_fb_write,
+	.fb_blank     = picolcd_fb_blank,
+	.fb_fillrect  = picolcd_fb_fillrect,
+	.fb_copyarea  = picolcd_fb_copyarea,
+	.fb_imageblit = picolcd_fb_imageblit,
+	.fb_check_var = picolcd_fb_check_var,
+	.fb_set_par   = picolcd_set_par,
+};
+
+
+/* Callback from deferred IO workqueue */
+static void picolcd_fb_deferred_io(struct fb_info *info, struct list_head *pagelist)
+{
+	picolcd_fb_update(info);
+}
+
+static const struct fb_deferred_io picolcd_fb_defio = {
+	.delay = HZ / PICOLCDFB_UPDATE_RATE_DEFAULT,
+	.deferred_io = picolcd_fb_deferred_io,
+};
+
+
+/*
+ * The "fb_update_rate" sysfs attribute
+ */
+static ssize_t picolcd_fb_update_rate_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct picolcd_data *data = dev_get_drvdata(dev);
+	struct picolcd_fb_data *fbdata = data->fb_info->par;
+	unsigned i, fb_update_rate = fbdata->update_rate;
+	size_t ret = 0;
+
+	for (i = 1; i <= PICOLCDFB_UPDATE_RATE_LIMIT; i++)
+		if (ret >= PAGE_SIZE)
+			break;
+		else if (i == fb_update_rate)
+			ret += snprintf(buf+ret, PAGE_SIZE-ret, "[%u] ", i);
+		else
+			ret += snprintf(buf+ret, PAGE_SIZE-ret, "%u ", i);
+	if (ret > 0)
+		buf[min(ret, (size_t)PAGE_SIZE)-1] = '\n';
+	return ret;
+}
+
+static ssize_t picolcd_fb_update_rate_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct picolcd_data *data = dev_get_drvdata(dev);
+	struct picolcd_fb_data *fbdata = data->fb_info->par;
+	int i;
+	unsigned u;
+
+	if (count < 1 || count > 10)
+		return -EINVAL;
+
+	i = sscanf(buf, "%u", &u);
+	if (i != 1)
+		return -EINVAL;
+
+	if (u > PICOLCDFB_UPDATE_RATE_LIMIT)
+		return -ERANGE;
+	else if (u == 0)
+		u = PICOLCDFB_UPDATE_RATE_DEFAULT;
+
+	fbdata->update_rate = u;
+	data->fb_info->fbdefio->delay = HZ / fbdata->update_rate;
+	return count;
+}
+
+static DEVICE_ATTR(fb_update_rate, 0666, picolcd_fb_update_rate_show,
+		picolcd_fb_update_rate_store);
+
+/* initialize Framebuffer device */
+int picolcd_init_framebuffer(struct picolcd_data *data)
+{
+	struct device *dev = &data->hdev->dev;
+	struct fb_info *info = NULL;
+	struct picolcd_fb_data *fbdata = NULL;
+	int i, error = -ENOMEM;
+	u32 *palette;
+
+	/* The extra memory is:
+	 * - 256*u32 for pseudo_palette
+	 * - struct fb_deferred_io
+	 */
+	info = framebuffer_alloc(256 * sizeof(u32) +
+			sizeof(struct fb_deferred_io) +
+			sizeof(struct picolcd_fb_data) +
+			PICOLCDFB_SIZE, dev);
+	if (info == NULL) {
+		dev_err(dev, "failed to allocate a framebuffer\n");
+		goto err_nomem;
+	}
+
+	info->fbdefio = info->par;
+	*info->fbdefio = picolcd_fb_defio;
+	info->par += sizeof(struct fb_deferred_io);
+	palette = info->par;
+	info->par += 256 * sizeof(u32);
+	for (i = 0; i < 256; i++)
+		palette[i] = i > 0 && i < 16 ? 0xff : 0;
+	info->pseudo_palette = palette;
+	info->fbops = &picolcdfb_ops;
+	info->var = picolcdfb_var;
+	info->fix = picolcdfb_fix;
+	info->fix.smem_len   = PICOLCDFB_SIZE*8;
+	info->flags = FBINFO_FLAG_DEFAULT;
+
+	fbdata = info->par;
+	spin_lock_init(&fbdata->lock);
+	fbdata->picolcd = data;
+	fbdata->update_rate = PICOLCDFB_UPDATE_RATE_DEFAULT;
+	fbdata->bpp     = picolcdfb_var.bits_per_pixel;
+	fbdata->force   = 1;
+	fbdata->vbitmap = info->par + sizeof(struct picolcd_fb_data);
+	fbdata->bitmap  = vmalloc(PICOLCDFB_SIZE*8);
+	if (fbdata->bitmap == NULL) {
+		dev_err(dev, "can't get a free page for framebuffer\n");
+		goto err_nomem;
+	}
+	info->screen_base = (char __force __iomem *)fbdata->bitmap;
+	info->fix.smem_start = (unsigned long)fbdata->bitmap;
+	memset(fbdata->vbitmap, 0xff, PICOLCDFB_SIZE);
+	data->fb_info = info;
+
+	error = picolcd_fb_reset(data, 1);
+	if (error) {
+		dev_err(dev, "failed to configure display\n");
+		goto err_cleanup;
+	}
+
+	error = device_create_file(dev, &dev_attr_fb_update_rate);
+	if (error) {
+		dev_err(dev, "failed to create sysfs attributes\n");
+		goto err_cleanup;
+	}
+
+	fb_deferred_io_init(info);
+	error = register_framebuffer(info);
+	if (error) {
+		dev_err(dev, "failed to register framebuffer\n");
+		goto err_sysfs;
+	}
+	return 0;
+
+err_sysfs:
+	device_remove_file(dev, &dev_attr_fb_update_rate);
+	fb_deferred_io_cleanup(info);
+err_cleanup:
+	data->fb_info    = NULL;
+
+err_nomem:
+	if (fbdata)
+		vfree(fbdata->bitmap);
+	framebuffer_release(info);
+	return error;
+}
+
+void picolcd_exit_framebuffer(struct picolcd_data *data)
+{
+	struct fb_info *info = data->fb_info;
+	struct picolcd_fb_data *fbdata = info->par;
+	unsigned long flags;
+
+	device_remove_file(&data->hdev->dev, &dev_attr_fb_update_rate);
+
+	/* disconnect framebuffer from HID dev */
+	spin_lock_irqsave(&fbdata->lock, flags);
+	fbdata->picolcd = NULL;
+	spin_unlock_irqrestore(&fbdata->lock, flags);
+
+	/* make sure there is no running update - thus that fbdata->picolcd
+	 * once obtained under lock is guaranteed not to get free() under
+	 * the feet of the deferred work */
+	flush_delayed_work(&info->deferred_work);
+
+	data->fb_info = NULL;
+	unregister_framebuffer(info);
+}
diff --git a/drivers/hid/hid-picolcd_lcd.c b/drivers/hid/hid-picolcd_lcd.c
new file mode 100644
index 00000000000..2d0ddc5ac65
--- /dev/null
+++ b/drivers/hid/hid-picolcd_lcd.c
@@ -0,0 +1,107 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/lcd.h>
+
+#include "hid-picolcd.h"
+
+/*
+ * lcd class device
+ */
+static int picolcd_get_contrast(struct lcd_device *ldev)
+{
+	struct picolcd_data *data = lcd_get_data(ldev);
+	return data->lcd_contrast;
+}
+
+static int picolcd_set_contrast(struct lcd_device *ldev, int contrast)
+{
+	struct picolcd_data *data = lcd_get_data(ldev);
+	struct hid_report *report = picolcd_out_report(REPORT_CONTRAST, data->hdev);
+	unsigned long flags;
+
+	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
+		return -ENODEV;
+
+	data->lcd_contrast = contrast & 0x0ff;
+	spin_lock_irqsave(&data->lock, flags);
+	hid_set_field(report->field[0], 0, data->lcd_contrast);
+	if (!(data->status & PICOLCD_FAILED))
+		usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
+	spin_unlock_irqrestore(&data->lock, flags);
+	return 0;
+}
+
+static int picolcd_check_lcd_fb(struct lcd_device *ldev, struct fb_info *fb)
+{
+	return fb && fb == picolcd_fbinfo((struct picolcd_data *)lcd_get_data(ldev));
+}
+
+static struct lcd_ops picolcd_lcdops = {
+	.get_contrast   = picolcd_get_contrast,
+	.set_contrast   = picolcd_set_contrast,
+	.check_fb       = picolcd_check_lcd_fb,
+};
+
+int picolcd_init_lcd(struct picolcd_data *data, struct hid_report *report)
+{
+	struct device *dev = &data->hdev->dev;
+	struct lcd_device *ldev;
+
+	if (!report)
+		return -ENODEV;
+	if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
+			report->field[0]->report_size != 8) {
+		dev_err(dev, "unsupported CONTRAST report");
+		return -EINVAL;
+	}
+
+	ldev = lcd_device_register(dev_name(dev), dev, data, &picolcd_lcdops);
+	if (IS_ERR(ldev)) {
+		dev_err(dev, "failed to register LCD\n");
+		return PTR_ERR(ldev);
+	}
+	ldev->props.max_contrast = 0x0ff;
+	data->lcd_contrast = 0xe5;
+	data->lcd = ldev;
+	picolcd_set_contrast(ldev, 0xe5);
+	return 0;
+}
+
+void picolcd_exit_lcd(struct picolcd_data *data)
+{
+	struct lcd_device *ldev = data->lcd;
+
+	data->lcd = NULL;
+	if (ldev)
+		lcd_device_unregister(ldev);
+}
+
+int picolcd_resume_lcd(struct picolcd_data *data)
+{
+	if (!data->lcd)
+		return 0;
+	return picolcd_set_contrast(data->lcd, data->lcd_contrast);
+}
+
diff --git a/drivers/hid/hid-picolcd_leds.c b/drivers/hid/hid-picolcd_leds.c
new file mode 100644
index 00000000000..28cb6a4f963
--- /dev/null
+++ b/drivers/hid/hid-picolcd_leds.c
@@ -0,0 +1,175 @@
+/***************************************************************************
+ *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
+ *                                                                         *
+ *   Based on Logitech G13 driver (v0.4)                                   *
+ *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
+ *                                                                         *
+ *   This program is free software: you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation, version 2 of the License.               *
+ *                                                                         *
+ *   This driver is distributed in the hope that it will be useful, but    *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this software. If not see <http://www.gnu.org/licenses/>.  *
+ ***************************************************************************/
+
+#include <linux/hid.h>
+#include <linux/hid-debug.h>
+#include <linux/input.h>
+#include "hid-ids.h"
+#include "usbhid/usbhid.h"
+#include <linux/usb.h>
+
+#include <linux/fb.h>
+#include <linux/vmalloc.h>
+#include <linux/backlight.h>
+#include <linux/lcd.h>
+
+#include <linux/leds.h>
+
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+
+#include <linux/completion.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+
+#include "hid-picolcd.h"
+
+
+void picolcd_leds_set(struct picolcd_data *data)
+{
+	struct hid_report *report;
+	unsigned long flags;
+
+	if (!data->led[0])
+		return;
+	report = picolcd_out_report(REPORT_LED_STATE, data->hdev);
+	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
+		return;
+
+	spin_lock_irqsave(&data->lock, flags);
+	hid_set_field(report->field[0], 0, data->led_state);
+	if (!(data->status & PICOLCD_FAILED))
+		usbhid_submit_report(data->hdev, report, USB_DIR_OUT);
+	spin_unlock_irqrestore(&data->lock, flags);
+}
+
+static void picolcd_led_set_brightness(struct led_classdev *led_cdev,
+			enum led_brightness value)
+{
+	struct device *dev;
+	struct hid_device *hdev;
+	struct picolcd_data *data;
+	int i, state = 0;
+
+	dev  = led_cdev->dev->parent;
+	hdev = container_of(dev, struct hid_device, dev);
+	data = hid_get_drvdata(hdev);
+	if (!data)
+		return;
+	for (i = 0; i < 8; i++) {
+		if (led_cdev != data->led[i])
+			continue;
+		state = (data->led_state >> i) & 1;
+		if (value == LED_OFF && state) {
+			data->led_state &= ~(1 << i);
+			picolcd_leds_set(data);
+		} else if (value != LED_OFF && !state) {
+			data->led_state |= 1 << i;
+			picolcd_leds_set(data);
+		}
+		break;
+	}
+}
+
+static enum led_brightness picolcd_led_get_brightness(struct led_classdev *led_cdev)
+{
+	struct device *dev;
+	struct hid_device *hdev;
+	struct picolcd_data *data;
+	int i, value = 0;
+
+	dev  = led_cdev->dev->parent;
+	hdev = container_of(dev, struct hid_device, dev);
+	data = hid_get_drvdata(hdev);
+	for (i = 0; i < 8; i++)
+		if (led_cdev == data->led[i]) {
+			value = (data->led_state >> i) & 1;
+			break;
+		}
+	return value ? LED_FULL : LED_OFF;
+}
+
+int picolcd_init_leds(struct picolcd_data *data, struct hid_report *report)
+{
+	struct device *dev = &data->hdev->dev;
+	struct led_classdev *led;
+	size_t name_sz = strlen(dev_name(dev)) + 8;
+	char *name;
+	int i, ret = 0;
+
+	if (!report)
+		return -ENODEV;
+	if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
+			report->field[0]->report_size != 8) {
+		dev_err(dev, "unsupported LED_STATE report");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < 8; i++) {
+		led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL);
+		if (!led) {
+			dev_err(dev, "can't allocate memory for LED %d\n", i);
+			ret = -ENOMEM;
+			goto err;
+		}
+		name = (void *)(&led[1]);
+		snprintf(name, name_sz, "%s::GPO%d", dev_name(dev), i);
+		led->name = name;
+		led->brightness = 0;
+		led->max_brightness = 1;
+		led->brightness_get = picolcd_led_get_brightness;
+		led->brightness_set = picolcd_led_set_brightness;
+
+		data->led[i] = led;
+		ret = led_classdev_register(dev, data->led[i]);
+		if (ret) {
+			data->led[i] = NULL;
+			kfree(led);
+			dev_err(dev, "can't register LED %d\n", i);
+			goto err;
+		}
+	}
+	return 0;
+err:
+	for (i = 0; i < 8; i++)
+		if (data->led[i]) {
+			led = data->led[i];
+			data->led[i] = NULL;
+			led_classdev_unregister(led);
+			kfree(led);
+		}
+	return ret;
+}
+
+void picolcd_exit_leds(struct picolcd_data *data)
+{
+	struct led_classdev *led;
+	int i;
+
+	for (i = 0; i < 8; i++) {
+		led = data->led[i];
+		data->led[i] = NULL;
+		if (!led)
+			continue;
+		led_classdev_unregister(led);
+		kfree(led);
+	}
+}
+
+
diff --git a/drivers/hid/hid-primax.c b/drivers/hid/hid-primax.c
index 4d3c60d8831..c15adb0c98a 100644
--- a/drivers/hid/hid-primax.c
+++ b/drivers/hid/hid-primax.c
@@ -64,29 +64,6 @@ static int px_raw_event(struct hid_device *hid, struct hid_report *report,
 	return 0;
 }
 
-static int px_probe(struct hid_device *hid, const struct hid_device_id *id)
-{
-	int ret;
-
-	ret = hid_parse(hid);
-	if (ret) {
-		hid_err(hid, "parse failed\n");
-		goto fail;
-	}
-
-	ret = hid_hw_start(hid, HID_CONNECT_DEFAULT);
-	if (ret)
-		hid_err(hid, "hw start failed\n");
-
-fail:
-	return ret;
-}
-
-static void px_remove(struct hid_device *hid)
-{
-	hid_hw_stop(hid);
-}
-
 static const struct hid_device_id px_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
 	{ }
@@ -97,8 +74,6 @@ static struct hid_driver px_driver = {
 	.name = "primax",
 	.id_table = px_devices,
 	.raw_event = px_raw_event,
-	.probe = px_probe,
-	.remove = px_remove,
 };
 
 static int __init px_init(void)
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index b71b77ab0dc..ec8ca333631 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -105,7 +105,7 @@ static ssize_t show_channel(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	dbg_hid("pcmidi sysfs read channel=%u\n", pk->pm->midi_channel);
 
@@ -118,7 +118,7 @@ static ssize_t store_channel(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	unsigned channel = 0;
 
@@ -142,7 +142,7 @@ static ssize_t show_sustain(struct device *dev,
  struct device_attribute *attr, char *buf)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	dbg_hid("pcmidi sysfs read sustain=%u\n", pk->pm->midi_sustain);
 
@@ -155,7 +155,7 @@ static ssize_t store_sustain(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	unsigned sustain = 0;
 
@@ -181,7 +181,7 @@ static ssize_t show_octave(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	dbg_hid("pcmidi sysfs read octave=%d\n", pk->pm->midi_octave);
 
@@ -194,7 +194,7 @@ static ssize_t store_octave(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	int octave = 0;
 
@@ -759,7 +759,7 @@ static int pk_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 	struct pcmidi_snd *pm;
 
 	pm = pk->pm;
@@ -777,7 +777,7 @@ static int pk_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 static int pk_raw_event(struct hid_device *hdev, struct hid_report *report,
 	u8 *data, int size)
 {
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 	int ret = 0;
 
 	if (1 == pk->pm->ifnum) {
@@ -858,7 +858,7 @@ err_free_pk:
 
 static void pk_remove(struct hid_device *hdev)
 {
-	struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev);
+	struct pk_device *pk = hid_get_drvdata(hdev);
 	struct pcmidi_snd *pm;
 
 	pm = pk->pm;
diff --git a/drivers/hid/hid-ps3remote.c b/drivers/hid/hid-ps3remote.c
new file mode 100644
index 00000000000..03811e539d7
--- /dev/null
+++ b/drivers/hid/hid-ps3remote.c
@@ -0,0 +1,215 @@
+/*
+ * HID driver for Sony PS3 BD Remote Control
+ *
+ * Copyright (c) 2012 David Dillow <dave@thedillows.org>
+ * Based on a blend of the bluez fakehid user-space code by Marcel Holtmann
+ * and other kernel HID drivers.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/* NOTE: in order for the Sony PS3 BD Remote Control to be found by
+ * a Bluetooth host, the key combination Start+Enter has to be kept pressed
+ * for about 7 seconds with the Bluetooth Host Controller in discovering mode.
+ *
+ * There will be no PIN request from the device.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+static __u8 ps3remote_rdesc[] = {
+	0x05, 0x01,          /* GUsagePage Generic Desktop */
+	0x09, 0x05,          /* LUsage 0x05 [Game Pad] */
+	0xA1, 0x01,          /* MCollection Application (mouse, keyboard) */
+
+	 /* Use collection 1 for joypad buttons */
+	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */
+
+	  /* Ignore the 1st byte, maybe it is used for a controller
+	   * number but it's not needed for correct operation */
+	  0x75, 0x08,        /* GReportSize 0x08 [8] */
+	  0x95, 0x01,        /* GReportCount 0x01 [1] */
+	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
+
+	  /* Bytes from 2nd to 4th are a bitmap for joypad buttons, for these
+	   * buttons multiple keypresses are allowed */
+	  0x05, 0x09,        /* GUsagePage Button */
+	  0x19, 0x01,        /* LUsageMinimum 0x01 [Button 1 (primary/trigger)] */
+	  0x29, 0x18,        /* LUsageMaximum 0x18 [Button 24] */
+	  0x14,              /* GLogicalMinimum [0] */
+	  0x25, 0x01,        /* GLogicalMaximum 0x01 [1] */
+	  0x75, 0x01,        /* GReportSize 0x01 [1] */
+	  0x95, 0x18,        /* GReportCount 0x18 [24] */
+	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
+
+	  0xC0,              /* MEndCollection */
+
+	 /* Use collection 2 for remote control buttons */
+	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */
+
+	  /* 5th byte is used for remote control buttons */
+	  0x05, 0x09,        /* GUsagePage Button */
+	  0x18,              /* LUsageMinimum [No button pressed] */
+	  0x29, 0xFE,        /* LUsageMaximum 0xFE [Button 254] */
+	  0x14,              /* GLogicalMinimum [0] */
+	  0x26, 0xFE, 0x00,  /* GLogicalMaximum 0x00FE [254] */
+	  0x75, 0x08,        /* GReportSize 0x08 [8] */
+	  0x95, 0x01,        /* GReportCount 0x01 [1] */
+	  0x80,              /* MInput  */
+
+	  /* Ignore bytes from 6th to 11th, 6th to 10th are always constant at
+	   * 0xff and 11th is for press indication */
+	  0x75, 0x08,        /* GReportSize 0x08 [8] */
+	  0x95, 0x06,        /* GReportCount 0x06 [6] */
+	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
+
+	  /* 12th byte is for battery strength */
+	  0x05, 0x06,        /* GUsagePage Generic Device Controls */
+	  0x09, 0x20,        /* LUsage 0x20 [Battery Strength] */
+	  0x14,              /* GLogicalMinimum [0] */
+	  0x25, 0x05,        /* GLogicalMaximum 0x05 [5] */
+	  0x75, 0x08,        /* GReportSize 0x08 [8] */
+	  0x95, 0x01,        /* GReportCount 0x01 [1] */
+	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
+
+	  0xC0,              /* MEndCollection */
+
+	 0xC0                /* MEndCollection [Game Pad] */
+};
+
+static const unsigned int ps3remote_keymap_joypad_buttons[] = {
+	[0x01] = KEY_SELECT,
+	[0x02] = BTN_THUMBL,		/* L3 */
+	[0x03] = BTN_THUMBR,		/* R3 */
+	[0x04] = BTN_START,
+	[0x05] = KEY_UP,
+	[0x06] = KEY_RIGHT,
+	[0x07] = KEY_DOWN,
+	[0x08] = KEY_LEFT,
+	[0x09] = BTN_TL2,		/* L2 */
+	[0x0a] = BTN_TR2,		/* R2 */
+	[0x0b] = BTN_TL,		/* L1 */
+	[0x0c] = BTN_TR,		/* R1 */
+	[0x0d] = KEY_OPTION,		/* options/triangle */
+	[0x0e] = KEY_BACK,		/* back/circle */
+	[0x0f] = BTN_0,			/* cross */
+	[0x10] = KEY_SCREEN,		/* view/square */
+	[0x11] = KEY_HOMEPAGE,		/* PS button */
+	[0x14] = KEY_ENTER,
+};
+static const unsigned int ps3remote_keymap_remote_buttons[] = {
+	[0x00] = KEY_1,
+	[0x01] = KEY_2,
+	[0x02] = KEY_3,
+	[0x03] = KEY_4,
+	[0x04] = KEY_5,
+	[0x05] = KEY_6,
+	[0x06] = KEY_7,
+	[0x07] = KEY_8,
+	[0x08] = KEY_9,
+	[0x09] = KEY_0,
+	[0x0e] = KEY_ESC,		/* return */
+	[0x0f] = KEY_CLEAR,
+	[0x16] = KEY_EJECTCD,
+	[0x1a] = KEY_MENU,		/* top menu */
+	[0x28] = KEY_TIME,
+	[0x30] = KEY_PREVIOUS,
+	[0x31] = KEY_NEXT,
+	[0x32] = KEY_PLAY,
+	[0x33] = KEY_REWIND,		/* scan back */
+	[0x34] = KEY_FORWARD,		/* scan forward */
+	[0x38] = KEY_STOP,
+	[0x39] = KEY_PAUSE,
+	[0x40] = KEY_CONTEXT_MENU,	/* pop up/menu */
+	[0x60] = KEY_FRAMEBACK,		/* slow/step back */
+	[0x61] = KEY_FRAMEFORWARD,	/* slow/step forward */
+	[0x63] = KEY_SUBTITLE,
+	[0x64] = KEY_AUDIO,
+	[0x65] = KEY_ANGLE,
+	[0x70] = KEY_INFO,		/* display */
+	[0x80] = KEY_BLUE,
+	[0x81] = KEY_RED,
+	[0x82] = KEY_GREEN,
+	[0x83] = KEY_YELLOW,
+};
+
+static __u8 *ps3remote_fixup(struct hid_device *hdev, __u8 *rdesc,
+			     unsigned int *rsize)
+{
+	*rsize = sizeof(ps3remote_rdesc);
+	return ps3remote_rdesc;
+}
+
+static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
+			     struct hid_field *field, struct hid_usage *usage,
+			     unsigned long **bit, int *max)
+{
+	unsigned int key = usage->hid & HID_USAGE;
+
+	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
+		return -1;
+
+	switch (usage->collection_index) {
+	case 1:
+		if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
+			return -1;
+
+		key = ps3remote_keymap_joypad_buttons[key];
+		if (!key)
+			return -1;
+		break;
+	case 2:
+		if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
+			return -1;
+
+		key = ps3remote_keymap_remote_buttons[key];
+		if (!key)
+			return -1;
+		break;
+	default:
+		return -1;
+	}
+
+	hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
+	return 1;
+}
+
+static const struct hid_device_id ps3remote_devices[] = {
+	/* PS3 BD Remote Control */
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
+	/* Logitech Harmony Adapter for PS3 */
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, ps3remote_devices);
+
+static struct hid_driver ps3remote_driver = {
+	.name          = "ps3_remote",
+	.id_table      = ps3remote_devices,
+	.report_fixup  = ps3remote_fixup,
+	.input_mapping = ps3remote_mapping,
+};
+
+static int __init ps3remote_init(void)
+{
+	return hid_register_driver(&ps3remote_driver);
+}
+
+static void __exit ps3remote_exit(void)
+{
+	hid_unregister_driver(&ps3remote_driver);
+}
+
+module_init(ps3remote_init);
+module_exit(ps3remote_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Dillow <dave@thedillows.org>, Antonio Ospite <ospite@studenti.unina.it>");
diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c
index 3c1fd8af5e0..a5821d31722 100644
--- a/drivers/hid/hid-samsung.c
+++ b/drivers/hid/hid-samsung.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  *  Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
  *
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
new file mode 100644
index 00000000000..d9d73e9163e
--- /dev/null
+++ b/drivers/hid/hid-sensor-hub.c
@@ -0,0 +1,680 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/usb.h>
+#include "usbhid/usbhid.h"
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/mfd/core.h>
+#include <linux/list.h>
+#include <linux/hid-sensor-ids.h>
+#include <linux/hid-sensor-hub.h>
+#include "hid-ids.h"
+
+/**
+ * struct sensor_hub_pending - Synchronous read pending information
+ * @status:		Pending status true/false.
+ * @ready:		Completion synchronization data.
+ * @usage_id:		Usage id for physical device, E.g. Gyro usage id.
+ * @attr_usage_id:	Usage Id of a field, E.g. X-AXIS for a gyro.
+ * @raw_size:		Response size for a read request.
+ * @raw_data:		Place holder for received response.
+ */
+struct sensor_hub_pending {
+	bool status;
+	struct completion ready;
+	u32 usage_id;
+	u32 attr_usage_id;
+	int raw_size;
+	u8  *raw_data;
+};
+
+/**
+ * struct sensor_hub_data - Hold a instance data for a HID hub device
+ * @hsdev:		Stored hid instance for current hub device.
+ * @mutex:		Mutex to serialize synchronous request.
+ * @lock:		Spin lock to protect pending request structure.
+ * @pending:		Holds information of pending sync read request.
+ * @dyn_callback_list:	Holds callback function
+ * @dyn_callback_lock:	spin lock to protect callback list
+ * @hid_sensor_hub_client_devs:	Stores all MFD cells for a hub instance.
+ * @hid_sensor_client_cnt: Number of MFD cells, (no of sensors attached).
+ */
+struct sensor_hub_data {
+	struct hid_sensor_hub_device *hsdev;
+	struct mutex mutex;
+	spinlock_t lock;
+	struct sensor_hub_pending pending;
+	struct list_head dyn_callback_list;
+	spinlock_t dyn_callback_lock;
+	struct mfd_cell *hid_sensor_hub_client_devs;
+	int hid_sensor_client_cnt;
+};
+
+/**
+ * struct hid_sensor_hub_callbacks_list - Stores callback list
+ * @list:		list head.
+ * @usage_id:		usage id for a physical device.
+ * @usage_callback:	Stores registered callback functions.
+ * @priv:		Private data for a physical device.
+ */
+struct hid_sensor_hub_callbacks_list {
+	struct list_head list;
+	u32 usage_id;
+	struct hid_sensor_hub_callbacks *usage_callback;
+	void *priv;
+};
+
+static int sensor_hub_check_for_sensor_page(struct hid_device *hdev)
+{
+	int i;
+	int ret = -EINVAL;
+
+	for (i = 0; i < hdev->maxcollection; i++) {
+		struct hid_collection *col = &hdev->collection[i];
+		if (col->type == HID_COLLECTION_PHYSICAL &&
+		   (col->usage & HID_USAGE_PAGE) == HID_UP_SENSOR) {
+			ret = 0;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev,
+						int dir)
+{
+	struct hid_report *report;
+
+	list_for_each_entry(report, &hdev->report_enum[dir].report_list, list) {
+		if (report->id == id)
+			return report;
+	}
+	hid_warn(hdev, "No report with id 0x%x found\n", id);
+
+	return NULL;
+}
+
+static int sensor_hub_get_physical_device_count(
+				struct hid_report_enum *report_enum)
+{
+	struct hid_report *report;
+	struct hid_field *field;
+	int cnt = 0;
+
+	list_for_each_entry(report, &report_enum->report_list, list) {
+		field = report->field[0];
+		if (report->maxfield && field &&
+					field->physical)
+			cnt++;
+	}
+
+	return cnt;
+}
+
+static void sensor_hub_fill_attr_info(
+		struct hid_sensor_hub_attribute_info *info,
+		s32 index, s32 report_id, s32 units, s32 unit_expo, s32 size)
+{
+	info->index = index;
+	info->report_id = report_id;
+	info->units = units;
+	info->unit_expo = unit_expo;
+	info->size = size/8;
+}
+
+static struct hid_sensor_hub_callbacks *sensor_hub_get_callback(
+					struct hid_device *hdev,
+					u32 usage_id, void **priv)
+{
+	struct hid_sensor_hub_callbacks_list *callback;
+	struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
+
+	spin_lock(&pdata->dyn_callback_lock);
+	list_for_each_entry(callback, &pdata->dyn_callback_list, list)
+		if (callback->usage_id == usage_id) {
+			*priv = callback->priv;
+			spin_unlock(&pdata->dyn_callback_lock);
+			return callback->usage_callback;
+		}
+	spin_unlock(&pdata->dyn_callback_lock);
+
+	return NULL;
+}
+
+int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev,
+			u32 usage_id,
+			struct hid_sensor_hub_callbacks *usage_callback)
+{
+	struct hid_sensor_hub_callbacks_list *callback;
+	struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev);
+
+	spin_lock(&pdata->dyn_callback_lock);
+	list_for_each_entry(callback, &pdata->dyn_callback_list, list)
+		if (callback->usage_id == usage_id) {
+			spin_unlock(&pdata->dyn_callback_lock);
+			return -EINVAL;
+		}
+	callback = kzalloc(sizeof(*callback), GFP_ATOMIC);
+	if (!callback) {
+		spin_unlock(&pdata->dyn_callback_lock);
+		return -ENOMEM;
+	}
+	callback->usage_callback = usage_callback;
+	callback->usage_id = usage_id;
+	callback->priv = NULL;
+	list_add_tail(&callback->list, &pdata->dyn_callback_list);
+	spin_unlock(&pdata->dyn_callback_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_register_callback);
+
+int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
+				u32 usage_id)
+{
+	struct hid_sensor_hub_callbacks_list *callback;
+	struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev);
+
+	spin_lock(&pdata->dyn_callback_lock);
+	list_for_each_entry(callback, &pdata->dyn_callback_list, list)
+		if (callback->usage_id == usage_id) {
+			list_del(&callback->list);
+			kfree(callback);
+			break;
+		}
+	spin_unlock(&pdata->dyn_callback_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_remove_callback);
+
+int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
+				u32 field_index, s32 value)
+{
+	struct hid_report *report;
+	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
+	int ret = 0;
+
+	mutex_lock(&data->mutex);
+	report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
+	if (!report || (field_index >=  report->maxfield)) {
+		ret = -EINVAL;
+		goto done_proc;
+	}
+	hid_set_field(report->field[field_index], 0, value);
+	usbhid_submit_report(hsdev->hdev, report, USB_DIR_OUT);
+	usbhid_wait_io(hsdev->hdev);
+
+done_proc:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_set_feature);
+
+int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
+				u32 field_index, s32 *value)
+{
+	struct hid_report *report;
+	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
+	int ret = 0;
+
+	mutex_lock(&data->mutex);
+	report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
+	if (!report || (field_index >=  report->maxfield)) {
+		ret = -EINVAL;
+		goto done_proc;
+	}
+	usbhid_submit_report(hsdev->hdev, report, USB_DIR_IN);
+	usbhid_wait_io(hsdev->hdev);
+	*value = report->field[field_index]->value[0];
+
+done_proc:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_get_feature);
+
+
+int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
+					u32 usage_id,
+					u32 attr_usage_id, u32 report_id)
+{
+	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
+	unsigned long flags;
+	struct hid_report *report;
+	int ret_val = 0;
+
+	mutex_lock(&data->mutex);
+	memset(&data->pending, 0, sizeof(data->pending));
+	init_completion(&data->pending.ready);
+	data->pending.usage_id = usage_id;
+	data->pending.attr_usage_id = attr_usage_id;
+	data->pending.raw_size = 0;
+
+	spin_lock_irqsave(&data->lock, flags);
+	data->pending.status = true;
+	report = sensor_hub_report(report_id, hsdev->hdev, HID_INPUT_REPORT);
+	if (!report) {
+		spin_unlock_irqrestore(&data->lock, flags);
+		goto err_free;
+	}
+	usbhid_submit_report(hsdev->hdev, report, USB_DIR_IN);
+	spin_unlock_irqrestore(&data->lock, flags);
+	wait_for_completion_interruptible_timeout(&data->pending.ready, HZ*5);
+	switch (data->pending.raw_size) {
+	case 1:
+		ret_val = *(u8 *)data->pending.raw_data;
+		break;
+	case 2:
+		ret_val = *(u16 *)data->pending.raw_data;
+		break;
+	case 4:
+		ret_val = *(u32 *)data->pending.raw_data;
+		break;
+	default:
+		ret_val = 0;
+	}
+	kfree(data->pending.raw_data);
+
+err_free:
+	data->pending.status = false;
+	mutex_unlock(&data->mutex);
+
+	return ret_val;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_input_attr_get_raw_value);
+
+int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
+				u8 type,
+				u32 usage_id,
+				u32 attr_usage_id,
+				struct hid_sensor_hub_attribute_info *info)
+{
+	int ret = -1;
+	int i, j;
+	int collection_index = -1;
+	struct hid_report *report;
+	struct hid_field *field;
+	struct hid_report_enum *report_enum;
+	struct hid_device *hdev = hsdev->hdev;
+
+	/* Initialize with defaults */
+	info->usage_id = usage_id;
+	info->attrib_id =  attr_usage_id;
+	info->report_id = -1;
+	info->index = -1;
+	info->units = -1;
+	info->unit_expo = -1;
+
+	for (i = 0; i < hdev->maxcollection; ++i) {
+		struct hid_collection *collection = &hdev->collection[i];
+		if (usage_id == collection->usage) {
+			collection_index = i;
+			break;
+		}
+	}
+	if (collection_index == -1)
+		goto err_ret;
+
+	report_enum = &hdev->report_enum[type];
+	list_for_each_entry(report, &report_enum->report_list, list) {
+		for (i = 0; i < report->maxfield; ++i) {
+			field = report->field[i];
+			if (field->physical == usage_id &&
+				field->logical == attr_usage_id) {
+				sensor_hub_fill_attr_info(info, i, report->id,
+					field->unit, field->unit_exponent,
+					field->report_size);
+				ret = 0;
+			} else {
+				for (j = 0; j < field->maxusage; ++j) {
+					if (field->usage[j].hid ==
+					attr_usage_id &&
+					field->usage[j].collection_index ==
+					collection_index)  {
+						sensor_hub_fill_attr_info(info,
+							i, report->id,
+							field->unit,
+							field->unit_exponent,
+							field->report_size);
+						ret = 0;
+						break;
+					}
+				}
+			}
+			if (ret == 0)
+				break;
+		}
+	}
+
+err_ret:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_input_get_attribute_info);
+
+#ifdef CONFIG_PM
+static int sensor_hub_suspend(struct hid_device *hdev, pm_message_t message)
+{
+	struct sensor_hub_data *pdata =  hid_get_drvdata(hdev);
+	struct hid_sensor_hub_callbacks_list *callback;
+
+	hid_dbg(hdev, " sensor_hub_suspend\n");
+	spin_lock(&pdata->dyn_callback_lock);
+	list_for_each_entry(callback, &pdata->dyn_callback_list, list) {
+		if (callback->usage_callback->suspend)
+			callback->usage_callback->suspend(
+					pdata->hsdev, callback->priv);
+	}
+	spin_unlock(&pdata->dyn_callback_lock);
+
+	return 0;
+}
+
+static int sensor_hub_resume(struct hid_device *hdev)
+{
+	struct sensor_hub_data *pdata =  hid_get_drvdata(hdev);
+	struct hid_sensor_hub_callbacks_list *callback;
+
+	hid_dbg(hdev, " sensor_hub_resume\n");
+	spin_lock(&pdata->dyn_callback_lock);
+	list_for_each_entry(callback, &pdata->dyn_callback_list, list) {
+		if (callback->usage_callback->resume)
+			callback->usage_callback->resume(
+					pdata->hsdev, callback->priv);
+	}
+	spin_unlock(&pdata->dyn_callback_lock);
+
+	return 0;
+}
+
+static int sensor_hub_reset_resume(struct hid_device *hdev)
+{
+	return 0;
+}
+#endif
+/*
+ * Handle raw report as sent by device
+ */
+static int sensor_hub_raw_event(struct hid_device *hdev,
+		struct hid_report *report, u8 *raw_data, int size)
+{
+	int i;
+	u8 *ptr;
+	int sz;
+	struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
+	unsigned long flags;
+	struct hid_sensor_hub_callbacks *callback = NULL;
+	struct hid_collection *collection = NULL;
+	void *priv = NULL;
+
+	hid_dbg(hdev, "sensor_hub_raw_event report id:0x%x size:%d type:%d\n",
+			 report->id, size, report->type);
+	hid_dbg(hdev, "maxfield:%d\n", report->maxfield);
+	if (report->type != HID_INPUT_REPORT)
+		return 1;
+
+	ptr = raw_data;
+	ptr++; /*Skip report id*/
+
+	if (!report)
+		goto err_report;
+
+	spin_lock_irqsave(&pdata->lock, flags);
+
+	for (i = 0; i < report->maxfield; ++i) {
+
+		hid_dbg(hdev, "%d collection_index:%x hid:%x sz:%x\n",
+				i, report->field[i]->usage->collection_index,
+				report->field[i]->usage->hid,
+				report->field[i]->report_size/8);
+
+		sz = report->field[i]->report_size/8;
+		if (pdata->pending.status && pdata->pending.attr_usage_id ==
+				report->field[i]->usage->hid) {
+			hid_dbg(hdev, "data was pending ...\n");
+			pdata->pending.raw_data = kmalloc(sz, GFP_ATOMIC);
+			if (pdata->pending.raw_data) {
+				memcpy(pdata->pending.raw_data, ptr, sz);
+				pdata->pending.raw_size  = sz;
+			} else
+				pdata->pending.raw_size = 0;
+			complete(&pdata->pending.ready);
+		}
+		collection = &hdev->collection[
+				report->field[i]->usage->collection_index];
+		hid_dbg(hdev, "collection->usage %x\n",
+					collection->usage);
+		callback = sensor_hub_get_callback(pdata->hsdev->hdev,
+						report->field[i]->physical,
+							&priv);
+		if (callback && callback->capture_sample) {
+			if (report->field[i]->logical)
+				callback->capture_sample(pdata->hsdev,
+					report->field[i]->logical, sz, ptr,
+					callback->pdev);
+			else
+				callback->capture_sample(pdata->hsdev,
+					report->field[i]->usage->hid, sz, ptr,
+					callback->pdev);
+		}
+		ptr += sz;
+	}
+	if (callback && collection && callback->send_event)
+		callback->send_event(pdata->hsdev, collection->usage,
+				callback->pdev);
+	spin_unlock_irqrestore(&pdata->lock, flags);
+
+err_report:
+	return 1;
+}
+
+static int sensor_hub_probe(struct hid_device *hdev,
+				const struct hid_device_id *id)
+{
+	int ret;
+	struct sensor_hub_data *sd;
+	int i;
+	char *name;
+	struct hid_report *report;
+	struct hid_report_enum *report_enum;
+	struct hid_field *field;
+	int dev_cnt;
+
+	sd = kzalloc(sizeof(struct sensor_hub_data), GFP_KERNEL);
+	if (!sd) {
+		hid_err(hdev, "cannot allocate Sensor data\n");
+		return -ENOMEM;
+	}
+	sd->hsdev = kzalloc(sizeof(struct hid_sensor_hub_device), GFP_KERNEL);
+	if (!sd->hsdev) {
+		hid_err(hdev, "cannot allocate hid_sensor_hub_device\n");
+		ret = -ENOMEM;
+		goto err_free_hub;
+	}
+	hid_set_drvdata(hdev, sd);
+	sd->hsdev->hdev = hdev;
+	sd->hsdev->vendor_id = hdev->vendor;
+	sd->hsdev->product_id = hdev->product;
+	spin_lock_init(&sd->lock);
+	spin_lock_init(&sd->dyn_callback_lock);
+	mutex_init(&sd->mutex);
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "parse failed\n");
+		goto err_free;
+	}
+	if (sensor_hub_check_for_sensor_page(hdev) < 0) {
+		hid_err(hdev, "sensor page not found\n");
+		goto err_free;
+	}
+	INIT_LIST_HEAD(&hdev->inputs);
+
+	ret = hid_hw_start(hdev, 0);
+	if (ret) {
+		hid_err(hdev, "hw start failed\n");
+		goto err_free;
+	}
+	ret = hid_hw_open(hdev);
+	if (ret) {
+		hid_err(hdev, "failed to open input interrupt pipe\n");
+		goto err_stop_hw;
+	}
+
+	INIT_LIST_HEAD(&sd->dyn_callback_list);
+	sd->hid_sensor_client_cnt = 0;
+	report_enum = &hdev->report_enum[HID_INPUT_REPORT];
+
+	dev_cnt = sensor_hub_get_physical_device_count(report_enum);
+	if (dev_cnt > HID_MAX_PHY_DEVICES) {
+		hid_err(hdev, "Invalid Physical device count\n");
+		ret = -EINVAL;
+		goto err_close;
+	}
+	sd->hid_sensor_hub_client_devs = kzalloc(dev_cnt *
+						sizeof(struct mfd_cell),
+						GFP_KERNEL);
+	if (sd->hid_sensor_hub_client_devs == NULL) {
+		hid_err(hdev, "Failed to allocate memory for mfd cells\n");
+			ret = -ENOMEM;
+			goto err_close;
+	}
+	list_for_each_entry(report, &report_enum->report_list, list) {
+		hid_dbg(hdev, "Report id:%x\n", report->id);
+		field = report->field[0];
+		if (report->maxfield && field &&
+					field->physical) {
+			name = kasprintf(GFP_KERNEL, "HID-SENSOR-%x",
+						field->physical);
+			if (name  == NULL) {
+				hid_err(hdev, "Failed MFD device name\n");
+					ret = -ENOMEM;
+					goto err_free_names;
+			}
+			sd->hid_sensor_hub_client_devs[
+				sd->hid_sensor_client_cnt].name = name;
+			sd->hid_sensor_hub_client_devs[
+				sd->hid_sensor_client_cnt].platform_data =
+						sd->hsdev;
+			sd->hid_sensor_hub_client_devs[
+				sd->hid_sensor_client_cnt].pdata_size =
+						sizeof(*sd->hsdev);
+			hid_dbg(hdev, "Adding %s:%p\n", name, sd);
+			sd->hid_sensor_client_cnt++;
+		}
+	}
+	ret = mfd_add_devices(&hdev->dev, 0, sd->hid_sensor_hub_client_devs,
+		sd->hid_sensor_client_cnt, NULL, 0, NULL);
+	if (ret < 0)
+		goto err_free_names;
+
+	return ret;
+
+err_free_names:
+	for (i = 0; i < sd->hid_sensor_client_cnt ; ++i)
+		kfree(sd->hid_sensor_hub_client_devs[i].name);
+	kfree(sd->hid_sensor_hub_client_devs);
+err_close:
+	hid_hw_close(hdev);
+err_stop_hw:
+	hid_hw_stop(hdev);
+err_free:
+	kfree(sd->hsdev);
+err_free_hub:
+	kfree(sd);
+
+	return ret;
+}
+
+static void sensor_hub_remove(struct hid_device *hdev)
+{
+	struct sensor_hub_data *data = hid_get_drvdata(hdev);
+	unsigned long flags;
+	int i;
+
+	hid_dbg(hdev, " hardware removed\n");
+	hid_hw_close(hdev);
+	hid_hw_stop(hdev);
+	spin_lock_irqsave(&data->lock, flags);
+	if (data->pending.status)
+		complete(&data->pending.ready);
+	spin_unlock_irqrestore(&data->lock, flags);
+	mfd_remove_devices(&hdev->dev);
+	for (i = 0; i < data->hid_sensor_client_cnt ; ++i)
+		kfree(data->hid_sensor_hub_client_devs[i].name);
+	kfree(data->hid_sensor_hub_client_devs);
+	hid_set_drvdata(hdev, NULL);
+	mutex_destroy(&data->mutex);
+	kfree(data->hsdev);
+	kfree(data);
+}
+
+static const struct hid_device_id sensor_hub_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086,
+			USB_DEVICE_ID_SENSOR_HUB_1020) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087,
+			USB_DEVICE_ID_SENSOR_HUB_1020) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086,
+			USB_DEVICE_ID_SENSOR_HUB_09FA) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087,
+			USB_DEVICE_ID_SENSOR_HUB_09FA) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
+			USB_DEVICE_ID_SENSOR_HUB_7014) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, sensor_hub_devices);
+
+static const struct hid_usage_id sensor_hub_grabbed_usages[] = {
+	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1 }
+};
+
+static struct hid_driver sensor_hub_driver = {
+	.name = "hid-sensor-hub",
+	.id_table = sensor_hub_devices,
+	.probe = sensor_hub_probe,
+	.remove = sensor_hub_remove,
+	.raw_event = sensor_hub_raw_event,
+#ifdef CONFIG_PM
+	.suspend = sensor_hub_suspend,
+	.resume =  sensor_hub_resume,
+	.reset_resume =  sensor_hub_reset_resume,
+#endif
+};
+
+static int __init sensor_hub_init(void)
+{
+	return hid_register_driver(&sensor_hub_driver);
+}
+
+static void __exit sensor_hub_exit(void)
+{
+	hid_unregister_driver(&sensor_hub_driver);
+}
+
+module_init(sensor_hub_init);
+module_exit(sensor_hub_exit);
+
+MODULE_DESCRIPTION("HID Sensor Hub driver");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 5cd25bd907f..7f33ebf299c 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -4,7 +4,6 @@
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  *  Copyright (c) 2006-2008 Jiri Kosina
  */
diff --git a/drivers/hid/hid-sunplus.c b/drivers/hid/hid-sunplus.c
index d484a0043dd..45b4b066a26 100644
--- a/drivers/hid/hid-sunplus.c
+++ b/drivers/hid/hid-sunplus.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
  */
 
diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
index 3aba02be1f2..2e56a1fd237 100644
--- a/drivers/hid/hid-uclogic.c
+++ b/drivers/hid/hid-uclogic.c
@@ -466,6 +466,86 @@ static __u8 twhl850_rdesc_fixed2[] = {
 	0xC0                /*  End Collection                      */
 };
 
+/*
+ * See TWHA60 description, device and HID report descriptors at
+ * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_TWHA60
+ */
+
+/* Size of the original descriptors of TWHA60 tablet */
+#define TWHA60_RDESC_ORIG_SIZE0 254
+#define TWHA60_RDESC_ORIG_SIZE1 139
+
+/* Fixed TWHA60 report descriptor, interface 0 (stylus) */
+static __u8 twha60_rdesc_fixed0[] = {
+	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
+	0x09, 0x02,         /*  Usage (Pen),                        */
+	0xA1, 0x01,         /*  Collection (Application),           */
+	0x85, 0x09,         /*      Report ID (9),                  */
+	0x09, 0x20,         /*      Usage (Stylus),                 */
+	0xA0,               /*      Collection (Physical),          */
+	0x75, 0x01,         /*          Report Size (1),            */
+	0x09, 0x42,         /*          Usage (Tip Switch),         */
+	0x09, 0x44,         /*          Usage (Barrel Switch),      */
+	0x09, 0x46,         /*          Usage (Tablet Pick),        */
+	0x14,               /*          Logical Minimum (0),        */
+	0x25, 0x01,         /*          Logical Maximum (1),        */
+	0x95, 0x03,         /*          Report Count (3),           */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0x95, 0x04,         /*          Report Count (4),           */
+	0x81, 0x01,         /*          Input (Constant),           */
+	0x09, 0x32,         /*          Usage (In Range),           */
+	0x95, 0x01,         /*          Report Count (1),           */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0x75, 0x10,         /*          Report Size (16),           */
+	0x95, 0x01,         /*          Report Count (1),           */
+	0x14,               /*          Logical Minimum (0),        */
+	0xA4,               /*          Push,                       */
+	0x05, 0x01,         /*          Usage Page (Desktop),       */
+	0x55, 0xFD,         /*          Unit Exponent (-3),         */
+	0x65, 0x13,         /*          Unit (Inch),                */
+	0x34,               /*          Physical Minimum (0),       */
+	0x09, 0x30,         /*          Usage (X),                  */
+	0x46, 0x10, 0x27,   /*          Physical Maximum (10000),   */
+	0x27, 0x3F, 0x9C,
+		0x00, 0x00, /*          Logical Maximum (39999),    */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0x09, 0x31,         /*          Usage (Y),                  */
+	0x46, 0x6A, 0x18,   /*          Physical Maximum (6250),    */
+	0x26, 0xA7, 0x61,   /*          Logical Maximum (24999),    */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0xB4,               /*          Pop,                        */
+	0x09, 0x30,         /*          Usage (Tip Pressure),       */
+	0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+	0x81, 0x02,         /*          Input (Variable),           */
+	0xC0,               /*      End Collection,                 */
+	0xC0                /*  End Collection                      */
+};
+
+/* Fixed TWHA60 report descriptor, interface 1 (frame buttons) */
+static __u8 twha60_rdesc_fixed1[] = {
+	0x05, 0x01, /*  Usage Page (Desktop),       */
+	0x09, 0x06, /*  Usage (Keyboard),           */
+	0xA1, 0x01, /*  Collection (Application),   */
+	0x85, 0x05, /*      Report ID (5),          */
+	0x05, 0x07, /*      Usage Page (Keyboard),  */
+	0x14,       /*      Logical Minimum (0),    */
+	0x25, 0x01, /*      Logical Maximum (1),    */
+	0x75, 0x01, /*      Report Size (1),        */
+	0x95, 0x08, /*      Report Count (8),       */
+	0x81, 0x01, /*      Input (Constant),       */
+	0x95, 0x0C, /*      Report Count (12),      */
+	0x19, 0x3A, /*      Usage Minimum (KB F1),  */
+	0x29, 0x45, /*      Usage Maximum (KB F12), */
+	0x81, 0x02, /*      Input (Variable),       */
+	0x95, 0x0C, /*      Report Count (12),      */
+	0x19, 0x68, /*      Usage Minimum (KB F13), */
+	0x29, 0x73, /*      Usage Maximum (KB F24), */
+	0x81, 0x02, /*      Input (Variable),       */
+	0x95, 0x08, /*      Report Count (8),       */
+	0x81, 0x01, /*      Input (Constant),       */
+	0xC0        /*  End Collection              */
+};
+
 static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 					unsigned int *rsize)
 {
@@ -525,6 +605,22 @@ static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 			break;
 		}
 		break;
+	case USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60:
+		switch (iface_num) {
+		case 0:
+			if (*rsize == TWHA60_RDESC_ORIG_SIZE0) {
+				rdesc = twha60_rdesc_fixed0;
+				*rsize = sizeof(twha60_rdesc_fixed0);
+			}
+			break;
+		case 1:
+			if (*rsize == TWHA60_RDESC_ORIG_SIZE1) {
+				rdesc = twha60_rdesc_fixed1;
+				*rsize = sizeof(twha60_rdesc_fixed1);
+			}
+			break;
+		}
+		break;
 	}
 
 	return rdesc;
@@ -543,6 +639,8 @@ static const struct hid_device_id uclogic_devices[] = {
 				USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
 				USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
+				USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, uclogic_devices);
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index fe23a1eb586..2f60da9ed06 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -5,7 +5,6 @@
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  *  Copyright (c) 2006-2007 Jiri Kosina
- *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
  *  Copyright (c) 2006 Andrew Zabolotny <zap@homelink.ru>
  *  Copyright (c) 2009 Bastien Nocera <hadess@hadess.net>
@@ -33,6 +32,8 @@
 #define PAD_DEVICE_ID	0x0F
 
 #define WAC_CMD_LED_CONTROL     0x20
+#define WAC_CMD_ICON_START_STOP     0x21
+#define WAC_CMD_ICON_TRANSFER       0x26
 
 struct wacom_data {
 	__u16 tool;
@@ -69,6 +70,91 @@ static enum power_supply_property wacom_ac_props[] = {
 	POWER_SUPPLY_PROP_SCOPE,
 };
 
+static void wacom_scramble(__u8 *image)
+{
+	__u16 mask;
+	__u16 s1;
+	__u16 s2;
+	__u16 r1 ;
+	__u16 r2 ;
+	__u16 r;
+	__u8 buf[256];
+	int i, w, x, y, z;
+
+	for (x = 0; x < 32; x++) {
+		for (y = 0; y < 8; y++)
+			buf[(8 * x) + (7 - y)] = image[(8 * x) + y];
+	}
+
+	/* Change 76543210 into GECA6420 as required by Intuos4 WL
+	 *        HGFEDCBA      HFDB7531
+	 */
+	for (x = 0; x < 4; x++) {
+		for (y = 0; y < 4; y++) {
+			for (z = 0; z < 8; z++) {
+				mask = 0x0001;
+				r1 = 0;
+				r2 = 0;
+				i = (x << 6) + (y << 4) + z;
+				s1 = buf[i];
+				s2 = buf[i+8];
+				for (w = 0; w < 8; w++) {
+					r1 |= (s1 & mask);
+					r2 |= (s2 & mask);
+					s1 <<= 1;
+					s2 <<= 1;
+					mask <<= 2;
+				}
+				r = r1 | (r2 << 1);
+				i = (x << 6) + (y << 4) + (z << 1);
+				image[i] = 0xFF & r;
+				image[i+1] = (0xFF00 & r) >> 8;
+			}
+		}
+	}
+}
+
+static void wacom_set_image(struct hid_device *hdev, const char *image,
+						__u8 icon_no)
+{
+	__u8 rep_data[68];
+	__u8 p[256];
+	int ret, i, j;
+
+	for (i = 0; i < 256; i++)
+		p[i] = image[i];
+
+	rep_data[0] = WAC_CMD_ICON_START_STOP;
+	rep_data[1] = 0;
+	ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+	if (ret < 0)
+		goto err;
+
+	rep_data[0] = WAC_CMD_ICON_TRANSFER;
+	rep_data[1] = icon_no & 0x07;
+
+	wacom_scramble(p);
+
+	for (i = 0; i < 4; i++) {
+		for (j = 0; j < 64; j++)
+			rep_data[j + 3] = p[(i << 6) + j];
+
+		rep_data[2] = i;
+		ret = hdev->hid_output_raw_report(hdev, rep_data, 67,
+					HID_FEATURE_REPORT);
+	}
+
+	rep_data[0] = WAC_CMD_ICON_START_STOP;
+	rep_data[1] = 0;
+
+	ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+
+err:
+	return;
+}
+
 static void wacom_leds_set_brightness(struct led_classdev *led_dev,
 						enum led_brightness value)
 {
@@ -91,7 +177,10 @@ static void wacom_leds_set_brightness(struct led_classdev *led_dev,
 	if (buf) {
 		buf[0] = WAC_CMD_LED_CONTROL;
 		buf[1] = led;
-		buf[2] = value;
+		buf[2] = value >> 2;
+		buf[3] = value;
+		/* use fixed brightness for OLEDs */
+		buf[4] = 0x08;
 		hdev->hid_output_raw_report(hdev, buf, 9, HID_FEATURE_REPORT);
 		kfree(buf);
 	}
@@ -317,6 +406,34 @@ static ssize_t wacom_store_speed(struct device *dev,
 static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR | S_IWGRP,
 		wacom_show_speed, wacom_store_speed);
 
+#define WACOM_STORE(OLED_ID)						\
+static ssize_t wacom_oled##OLED_ID##_store(struct device *dev,		\
+				struct device_attribute *attr,		\
+				const char *buf, size_t count)		\
+{									\
+	struct hid_device *hdev = container_of(dev, struct hid_device,	\
+				dev);					\
+									\
+	if (count != 256)						\
+		return -EINVAL;						\
+									\
+	wacom_set_image(hdev, buf, OLED_ID);				\
+									\
+	return count;							\
+}									\
+									\
+static DEVICE_ATTR(oled##OLED_ID##_img, S_IWUSR | S_IWGRP, NULL,	\
+				wacom_oled##OLED_ID##_store)
+
+WACOM_STORE(0);
+WACOM_STORE(1);
+WACOM_STORE(2);
+WACOM_STORE(3);
+WACOM_STORE(4);
+WACOM_STORE(5);
+WACOM_STORE(6);
+WACOM_STORE(7);
+
 static int wacom_gr_parse_report(struct hid_device *hdev,
 			struct wacom_data *wdata,
 			struct input_dev *input, unsigned char *data)
@@ -717,17 +834,33 @@ static int wacom_probe(struct hid_device *hdev,
 		hid_warn(hdev,
 			 "can't create sysfs speed attribute err: %d\n", ret);
 
+#define OLED_INIT(OLED_ID)						\
+	do {								\
+		ret = device_create_file(&hdev->dev,			\
+				&dev_attr_oled##OLED_ID##_img);		\
+		if (ret)						\
+			hid_warn(hdev,					\
+			 "can't create sysfs oled attribute, err: %d\n", ret);\
+	} while (0)
+
+OLED_INIT(0);
+OLED_INIT(1);
+OLED_INIT(2);
+OLED_INIT(3);
+OLED_INIT(4);
+OLED_INIT(5);
+OLED_INIT(6);
+OLED_INIT(7);
+
 	wdata->features = 0;
 	wacom_set_features(hdev, 1);
 
 	if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
 		sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
 		ret = wacom_initialize_leds(hdev);
-		if (ret) {
+		if (ret)
 			hid_warn(hdev,
 				 "can't create led attribute, err: %d\n", ret);
-			goto destroy_leds;
-		}
 	}
 
 	wdata->battery.properties = wacom_battery_props;
@@ -740,8 +873,8 @@ static int wacom_probe(struct hid_device *hdev,
 
 	ret = power_supply_register(&hdev->dev, &wdata->battery);
 	if (ret) {
-		hid_warn(hdev, "can't create sysfs battery attribute, err: %d\n",
-			 ret);
+		hid_err(hdev, "can't create sysfs battery attribute, err: %d\n",
+			ret);
 		goto err_battery;
 	}
 
@@ -756,8 +889,8 @@ static int wacom_probe(struct hid_device *hdev,
 
 	ret = power_supply_register(&hdev->dev, &wdata->ac);
 	if (ret) {
-		hid_warn(hdev,
-			 "can't create ac battery attribute, err: %d\n", ret);
+		hid_err(hdev,
+			"can't create ac battery attribute, err: %d\n", ret);
 		goto err_ac;
 	}
 
@@ -767,10 +900,17 @@ static int wacom_probe(struct hid_device *hdev,
 err_ac:
 	power_supply_unregister(&wdata->battery);
 err_battery:
+	wacom_destroy_leds(hdev);
+	device_remove_file(&hdev->dev, &dev_attr_oled0_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled1_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled2_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled3_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled4_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled5_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled6_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled7_img);
 	device_remove_file(&hdev->dev, &dev_attr_speed);
 	hid_hw_stop(hdev);
-destroy_leds:
-	wacom_destroy_leds(hdev);
 err_free:
 	kfree(wdata);
 	return ret;
@@ -781,6 +921,14 @@ static void wacom_remove(struct hid_device *hdev)
 	struct wacom_data *wdata = hid_get_drvdata(hdev);
 
 	wacom_destroy_leds(hdev);
+	device_remove_file(&hdev->dev, &dev_attr_oled0_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled1_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled2_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled3_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled4_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled5_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled6_img);
+	device_remove_file(&hdev->dev, &dev_attr_oled7_img);
 	device_remove_file(&hdev->dev, &dev_attr_speed);
 	hid_hw_stop(hdev);
 
diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c
index 745e4e9a8cf..bb536ab5941 100644
--- a/drivers/hid/hid-waltop.c
+++ b/drivers/hid/hid-waltop.c
@@ -638,28 +638,6 @@ static __u8 sirius_battery_free_tablet_rdesc_fixed[] = {
 	0xC0                /*  End Collection                      */
 };
 
-static int waltop_probe(struct hid_device *hdev,
-			const struct hid_device_id *id)
-{
-	int ret;
-
-	ret = hid_parse(hdev);
-	if (ret) {
-		hid_err(hdev, "parse failed\n");
-		goto err;
-	}
-
-	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-	if (ret) {
-		hid_err(hdev, "hw start failed\n");
-		goto err;
-	}
-
-	return 0;
-err:
-	return ret;
-}
-
 static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
@@ -776,11 +754,6 @@ static int waltop_raw_event(struct hid_device *hdev, struct hid_report *report,
 	return 0;
 }
 
-static void waltop_remove(struct hid_device *hdev)
-{
-	hid_hw_stop(hdev);
-}
-
 static const struct hid_device_id waltop_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
 				USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
@@ -803,10 +776,8 @@ MODULE_DEVICE_TABLE(hid, waltop_devices);
 static struct hid_driver waltop_driver = {
 	.name = "waltop",
 	.id_table = waltop_devices,
-	.probe = waltop_probe,
 	.report_fixup = waltop_report_fixup,
 	.raw_event = waltop_raw_event,
-	.remove = waltop_remove,
 };
 
 static int __init waltop_init(void)
diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c
index 0a1805c9b0e..38ae87772e9 100644
--- a/drivers/hid/hid-wiimote-ext.c
+++ b/drivers/hid/hid-wiimote-ext.c
@@ -28,12 +28,14 @@ struct wiimote_ext {
 	bool mp_plugged;
 	bool motionp;
 	__u8 ext_type;
+	__u16 calib[4][3];
 };
 
 enum wiiext_type {
 	WIIEXT_NONE,		/* placeholder */
 	WIIEXT_CLASSIC,		/* Nintendo classic controller */
 	WIIEXT_NUNCHUCK,	/* Nintendo nunchuck controller */
+	WIIEXT_BALANCE_BOARD,	/* Nintendo balance board controller */
 };
 
 enum wiiext_keys {
@@ -126,6 +128,7 @@ error:
 static __u8 ext_read(struct wiimote_ext *ext)
 {
 	ssize_t ret;
+	__u8 buf[24], i, j, offs = 0;
 	__u8 rmem[2], wmem;
 	__u8 type = WIIEXT_NONE;
 
@@ -151,6 +154,28 @@ static __u8 ext_read(struct wiimote_ext *ext)
 			type = WIIEXT_NUNCHUCK;
 		else if (rmem[0] == 0x01 && rmem[1] == 0x01)
 			type = WIIEXT_CLASSIC;
+		else if (rmem[0] == 0x04 && rmem[1] == 0x02)
+			type = WIIEXT_BALANCE_BOARD;
+	}
+
+	/* get balance board calibration data */
+	if (type == WIIEXT_BALANCE_BOARD) {
+		ret = wiimote_cmd_read(ext->wdata, 0xa40024, buf, 12);
+		ret += wiimote_cmd_read(ext->wdata, 0xa40024 + 12,
+					buf + 12, 12);
+
+		if (ret != 24) {
+			type = WIIEXT_NONE;
+		} else {
+			for (i = 0; i < 3; i++) {
+				for (j = 0; j < 4; j++) {
+					ext->calib[j][i] = buf[offs];
+					ext->calib[j][i] <<= 8;
+					ext->calib[j][i] |= buf[offs + 1];
+					offs += 2;
+				}
+			}
+		}
 	}
 
 	wiimote_cmd_release(ext->wdata);
@@ -204,7 +229,7 @@ static void wiiext_worker(struct work_struct *work)
 /* schedule work only once, otherwise mark for reschedule */
 static void wiiext_schedule(struct wiimote_ext *ext)
 {
-	queue_work(system_nrt_wq, &ext->worker);
+	schedule_work(&ext->worker);
 }
 
 /*
@@ -509,6 +534,71 @@ static void handler_classic(struct wiimote_ext *ext, const __u8 *payload)
 	input_sync(ext->input);
 }
 
+static void handler_balance_board(struct wiimote_ext *ext, const __u8 *payload)
+{
+	__s32 val[4], tmp;
+	unsigned int i;
+
+	/*   Byte |  8  7  6  5  4  3  2  1  |
+	 *   -----+--------------------------+
+	 *    1   |    Top Right <15:8>      |
+	 *    2   |    Top Right  <7:0>      |
+	 *   -----+--------------------------+
+	 *    3   | Bottom Right <15:8>      |
+	 *    4   | Bottom Right  <7:0>      |
+	 *   -----+--------------------------+
+	 *    5   |     Top Left <15:8>      |
+	 *    6   |     Top Left  <7:0>      |
+	 *   -----+--------------------------+
+	 *    7   |  Bottom Left <15:8>      |
+	 *    8   |  Bottom Left  <7:0>      |
+	 *   -----+--------------------------+
+	 *
+	 * These values represent the weight-measurements of the Wii-balance
+	 * board with 16bit precision.
+	 *
+	 * The balance-board is never reported interleaved with motionp.
+	 */
+
+	val[0] = payload[0];
+	val[0] <<= 8;
+	val[0] |= payload[1];
+
+	val[1] = payload[2];
+	val[1] <<= 8;
+	val[1] |= payload[3];
+
+	val[2] = payload[4];
+	val[2] <<= 8;
+	val[2] |= payload[5];
+
+	val[3] = payload[6];
+	val[3] <<= 8;
+	val[3] |= payload[7];
+
+	/* apply calibration data */
+	for (i = 0; i < 4; i++) {
+		if (val[i] < ext->calib[i][1]) {
+			tmp = val[i] - ext->calib[i][0];
+			tmp *= 1700;
+			tmp /= ext->calib[i][1] - ext->calib[i][0];
+		} else {
+			tmp = val[i] - ext->calib[i][1];
+			tmp *= 1700;
+			tmp /= ext->calib[i][2] - ext->calib[i][1];
+			tmp += 1700;
+		}
+		val[i] = tmp;
+	}
+
+	input_report_abs(ext->input, ABS_HAT0X, val[0]);
+	input_report_abs(ext->input, ABS_HAT0Y, val[1]);
+	input_report_abs(ext->input, ABS_HAT1X, val[2]);
+	input_report_abs(ext->input, ABS_HAT1Y, val[3]);
+
+	input_sync(ext->input);
+}
+
 /* call this with state.lock spinlock held */
 void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
 {
@@ -523,6 +613,8 @@ void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
 		handler_nunchuck(ext, payload);
 	} else if (ext->ext_type == WIIEXT_CLASSIC) {
 		handler_classic(ext, payload);
+	} else if (ext->ext_type == WIIEXT_BALANCE_BOARD) {
+		handler_balance_board(ext, payload);
 	}
 }
 
@@ -551,6 +643,11 @@ static ssize_t wiiext_show(struct device *dev, struct device_attribute *attr,
 			return sprintf(buf, "motionp+classic\n");
 		else
 			return sprintf(buf, "classic\n");
+	} else if (type == WIIEXT_BALANCE_BOARD) {
+		if (motionp)
+			return sprintf(buf, "motionp+balanceboard\n");
+		else
+			return sprintf(buf, "balanceboard\n");
 	} else {
 		if (motionp)
 			return sprintf(buf, "motionp\n");
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 3b6f7bf5a77..17d15bb610d 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -42,6 +42,7 @@ static struct cdev hidraw_cdev;
 static struct class *hidraw_class;
 static struct hidraw *hidraw_table[HIDRAW_MAX_DEVICES];
 static DEFINE_MUTEX(minors_lock);
+static void drop_ref(struct hidraw *hid, int exists_bit);
 
 static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
 {
@@ -113,7 +114,7 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
 	__u8 *buf;
 	int ret = 0;
 
-	if (!hidraw_table[minor]) {
+	if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
 		ret = -ENODEV;
 		goto out;
 	}
@@ -261,7 +262,7 @@ static int hidraw_open(struct inode *inode, struct file *file)
 	}
 
 	mutex_lock(&minors_lock);
-	if (!hidraw_table[minor]) {
+	if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
 		err = -ENODEV;
 		goto out_unlock;
 	}
@@ -298,36 +299,12 @@ out:
 static int hidraw_release(struct inode * inode, struct file * file)
 {
 	unsigned int minor = iminor(inode);
-	struct hidraw *dev;
 	struct hidraw_list *list = file->private_data;
-	int ret;
-	int i;
-
-	mutex_lock(&minors_lock);
-	if (!hidraw_table[minor]) {
-		ret = -ENODEV;
-		goto unlock;
-	}
 
+	drop_ref(hidraw_table[minor], 0);
 	list_del(&list->node);
-	dev = hidraw_table[minor];
-	if (!--dev->open) {
-		if (list->hidraw->exist) {
-			hid_hw_power(dev->hid, PM_HINT_NORMAL);
-			hid_hw_close(dev->hid);
-		} else {
-			kfree(list->hidraw);
-		}
-	}
-
-	for (i = 0; i < HIDRAW_BUFFER_SIZE; ++i)
-		kfree(list->buffer[i].value);
 	kfree(list);
-	ret = 0;
-unlock:
-	mutex_unlock(&minors_lock);
-
-	return ret;
+	return 0;
 }
 
 static long hidraw_ioctl(struct file *file, unsigned int cmd,
@@ -529,21 +506,7 @@ EXPORT_SYMBOL_GPL(hidraw_connect);
 void hidraw_disconnect(struct hid_device *hid)
 {
 	struct hidraw *hidraw = hid->hidraw;
-
-	mutex_lock(&minors_lock);
-	hidraw->exist = 0;
-
-	device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
-
-	hidraw_table[hidraw->minor] = NULL;
-
-	if (hidraw->open) {
-		hid_hw_close(hid);
-		wake_up_interruptible(&hidraw->wait);
-	} else {
-		kfree(hidraw);
-	}
-	mutex_unlock(&minors_lock);
+	drop_ref(hidraw, 1);
 }
 EXPORT_SYMBOL_GPL(hidraw_disconnect);
 
@@ -559,21 +522,28 @@ int __init hidraw_init(void)
 
 	if (result < 0) {
 		pr_warn("can't get major number\n");
-		result = 0;
 		goto out;
 	}
 
 	hidraw_class = class_create(THIS_MODULE, "hidraw");
 	if (IS_ERR(hidraw_class)) {
 		result = PTR_ERR(hidraw_class);
-		unregister_chrdev(hidraw_major, "hidraw");
-		goto out;
+		goto error_cdev;
 	}
 
         cdev_init(&hidraw_cdev, &hidraw_ops);
-        cdev_add(&hidraw_cdev, dev_id, HIDRAW_MAX_DEVICES);
+	result = cdev_add(&hidraw_cdev, dev_id, HIDRAW_MAX_DEVICES);
+	if (result < 0)
+		goto error_class;
+
 out:
 	return result;
+
+error_class:
+	class_destroy(hidraw_class);
+error_cdev:
+	unregister_chrdev_region(dev_id, HIDRAW_MAX_DEVICES);
+	goto out;
 }
 
 void hidraw_exit(void)
@@ -585,3 +555,23 @@ void hidraw_exit(void)
 	unregister_chrdev_region(dev_id, HIDRAW_MAX_DEVICES);
 
 }
+
+static void drop_ref(struct hidraw *hidraw, int exists_bit)
+{
+	mutex_lock(&minors_lock);
+	if (exists_bit) {
+		hid_hw_close(hidraw->hid);
+		hidraw->exist = 0;
+		if (hidraw->open)
+			wake_up_interruptible(&hidraw->wait);
+	} else {
+		--hidraw->open;
+	}
+
+	if (!hidraw->open && !hidraw->exist) {
+		device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
+		hidraw_table[hidraw->minor] = NULL;
+		kfree(hidraw);
+	}
+	mutex_unlock(&minors_lock);
+}
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index dedd8e4e5c6..8e0c4bf94eb 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1415,20 +1415,20 @@ static int hid_post_reset(struct usb_interface *intf)
 	 * configuration descriptors passed, we already know that
 	 * the size of the HID report descriptor has not changed.
 	 */
-	rdesc = kmalloc(hid->rsize, GFP_KERNEL);
+	rdesc = kmalloc(hid->dev_rsize, GFP_KERNEL);
 	if (!rdesc) {
 		dbg_hid("couldn't allocate rdesc memory (post_reset)\n");
 		return 1;
 	}
 	status = hid_get_class_descriptor(dev,
 				interface->desc.bInterfaceNumber,
-				HID_DT_REPORT, rdesc, hid->rsize);
+				HID_DT_REPORT, rdesc, hid->dev_rsize);
 	if (status < 0) {
 		dbg_hid("reading report descriptor failed (post_reset)\n");
 		kfree(rdesc);
 		return 1;
 	}
-	status = memcmp(rdesc, hid->rdesc, hid->rsize);
+	status = memcmp(rdesc, hid->dev_rdesc, hid->dev_rsize);
 	kfree(rdesc);
 	if (status != 0) {
 		dbg_hid("report descriptor changed\n");
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 903eef3d3e1..11c7932dc7e 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -70,11 +70,13 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
-	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 86f8885aeb4..3648f8f0f36 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -26,6 +26,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/hyperv.h>
+#include <linux/version.h>
 #include <asm/hyperv.h>
 #include "hyperv_vmbus.h"
 
@@ -38,28 +39,6 @@ struct hv_context hv_context = {
 };
 
 /*
- * query_hypervisor_presence
- * - Query the cpuid for presence of windows hypervisor
- */
-static int query_hypervisor_presence(void)
-{
-	unsigned int eax;
-	unsigned int ebx;
-	unsigned int ecx;
-	unsigned int edx;
-	unsigned int op;
-
-	eax = 0;
-	ebx = 0;
-	ecx = 0;
-	edx = 0;
-	op = HVCPUID_VERSION_FEATURES;
-	cpuid(op, &eax, &ebx, &ecx, &edx);
-
-	return ecx & HV_PRESENT_BIT;
-}
-
-/*
  * query_hypervisor_info - Get version info of the windows hypervisor
  */
 static int query_hypervisor_info(void)
@@ -159,14 +138,13 @@ int hv_init(void)
 	memset(hv_context.synic_message_page, 0,
 	       sizeof(void *) * NR_CPUS);
 
-	if (!query_hypervisor_presence())
-		goto cleanup;
-
 	max_leaf = query_hypervisor_info();
 
-	/* Write our OS info */
-	wrmsrl(HV_X64_MSR_GUEST_OS_ID, HV_LINUX_GUEST_ID);
-	hv_context.guestid = HV_LINUX_GUEST_ID;
+	/*
+	 * Write our OS ID.
+	 */
+	hv_context.guestid = generate_guest_id(0, LINUX_VERSION_CODE, 0);
+	wrmsrl(HV_X64_MSR_GUEST_OS_ID, hv_context.guestid);
 
 	/* See if the hypercall page is already set */
 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 0012eed6d87..ed50e9e83c6 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -48,13 +48,24 @@ static struct {
 	void *kvp_context; /* for the channel callback */
 } kvp_transaction;
 
+/*
+ * Before we can accept KVP messages from the host, we need
+ * to handshake with the user level daemon. This state tracks
+ * if we are in the handshake phase.
+ */
+static bool in_hand_shake = true;
+
+/*
+ * This state maintains the version number registered by the daemon.
+ */
+static int dm_reg_value;
+
 static void kvp_send_key(struct work_struct *dummy);
 
-#define TIMEOUT_FIRED 1
 
-static void kvp_respond_to_host(char *key, char *value, int error);
+static void kvp_respond_to_host(struct hv_kvp_msg *msg, int error);
 static void kvp_work_func(struct work_struct *dummy);
-static void kvp_register(void);
+static void kvp_register(int);
 
 static DECLARE_DELAYED_WORK(kvp_work, kvp_work_func);
 static DECLARE_WORK(kvp_sendkey_work, kvp_send_key);
@@ -68,7 +79,7 @@ static u8 *recv_buffer;
  */
 
 static void
-kvp_register(void)
+kvp_register(int reg_value)
 {
 
 	struct cn_msg *msg;
@@ -83,7 +94,7 @@ kvp_register(void)
 		msg->id.idx =  CN_KVP_IDX;
 		msg->id.val = CN_KVP_VAL;
 
-		kvp_msg->kvp_hdr.operation = KVP_OP_REGISTER;
+		kvp_msg->kvp_hdr.operation = reg_value;
 		strcpy(version, HV_DRV_VERSION);
 		msg->len = sizeof(struct hv_kvp_msg);
 		cn_netlink_send(msg, 0, GFP_ATOMIC);
@@ -97,9 +108,43 @@ kvp_work_func(struct work_struct *dummy)
 	 * If the timer fires, the user-mode component has not responded;
 	 * process the pending transaction.
 	 */
-	kvp_respond_to_host("Unknown key", "Guest timed out", TIMEOUT_FIRED);
+	kvp_respond_to_host(NULL, HV_E_FAIL);
+}
+
+static int kvp_handle_handshake(struct hv_kvp_msg *msg)
+{
+	int ret = 1;
+
+	switch (msg->kvp_hdr.operation) {
+	case KVP_OP_REGISTER:
+		dm_reg_value = KVP_OP_REGISTER;
+		pr_info("KVP: IP injection functionality not available\n");
+		pr_info("KVP: Upgrade the KVP daemon\n");
+		break;
+	case KVP_OP_REGISTER1:
+		dm_reg_value = KVP_OP_REGISTER1;
+		break;
+	default:
+		pr_info("KVP: incompatible daemon\n");
+		pr_info("KVP: KVP version: %d, Daemon version: %d\n",
+			KVP_OP_REGISTER1, msg->kvp_hdr.operation);
+		ret = 0;
+	}
+
+	if (ret) {
+		/*
+		 * We have a compatible daemon; complete the handshake.
+		 */
+		pr_info("KVP: user-mode registering done.\n");
+		kvp_register(dm_reg_value);
+		kvp_transaction.active = false;
+		if (kvp_transaction.kvp_context)
+			hv_kvp_onchannelcallback(kvp_transaction.kvp_context);
+	}
+	return ret;
 }
 
+
 /*
  * Callback when data is received from user mode.
  */
@@ -109,29 +154,165 @@ kvp_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
 {
 	struct hv_kvp_msg *message;
 	struct hv_kvp_msg_enumerate *data;
+	int	error = 0;
 
 	message = (struct hv_kvp_msg *)msg->data;
-	switch (message->kvp_hdr.operation) {
+
+	/*
+	 * If we are negotiating the version information
+	 * with the daemon; handle that first.
+	 */
+
+	if (in_hand_shake) {
+		if (kvp_handle_handshake(message))
+			in_hand_shake = false;
+		return;
+	}
+
+	/*
+	 * Based on the version of the daemon, we propagate errors from the
+	 * daemon differently.
+	 */
+
+	data = &message->body.kvp_enum_data;
+
+	switch (dm_reg_value) {
 	case KVP_OP_REGISTER:
-		pr_info("KVP: user-mode registering done.\n");
-		kvp_register();
-		kvp_transaction.active = false;
-		hv_kvp_onchannelcallback(kvp_transaction.kvp_context);
+		/*
+		 * Null string is used to pass back error condition.
+		 */
+		if (data->data.key[0] == 0)
+			error = HV_S_CONT;
 		break;
 
-	default:
-		data = &message->body.kvp_enum_data;
+	case KVP_OP_REGISTER1:
 		/*
-		 * Complete the transaction by forwarding the key value
-		 * to the host. But first, cancel the timeout.
+		 * We use the message header information from
+		 * the user level daemon to transmit errors.
 		 */
-		if (cancel_delayed_work_sync(&kvp_work))
-			kvp_respond_to_host(data->data.key,
-					 data->data.value,
-					!strlen(data->data.key));
+		error = message->error;
+		break;
+	}
+
+	/*
+	 * Complete the transaction by forwarding the key value
+	 * to the host. But first, cancel the timeout.
+	 */
+	if (cancel_delayed_work_sync(&kvp_work))
+		kvp_respond_to_host(message, error);
+}
+
+
+static int process_ob_ipinfo(void *in_msg, void *out_msg, int op)
+{
+	struct hv_kvp_msg *in = in_msg;
+	struct hv_kvp_ip_msg *out = out_msg;
+	int len;
+
+	switch (op) {
+	case KVP_OP_GET_IP_INFO:
+		/*
+		 * Transform all parameters into utf16 encoding.
+		 */
+		len = utf8s_to_utf16s((char *)in->body.kvp_ip_val.ip_addr,
+				strlen((char *)in->body.kvp_ip_val.ip_addr),
+				UTF16_HOST_ENDIAN,
+				(wchar_t *)out->kvp_ip_val.ip_addr,
+				MAX_IP_ADDR_SIZE);
+		if (len < 0)
+			return len;
+
+		len = utf8s_to_utf16s((char *)in->body.kvp_ip_val.sub_net,
+				strlen((char *)in->body.kvp_ip_val.sub_net),
+				UTF16_HOST_ENDIAN,
+				(wchar_t *)out->kvp_ip_val.sub_net,
+				MAX_IP_ADDR_SIZE);
+		if (len < 0)
+			return len;
+
+		len = utf8s_to_utf16s((char *)in->body.kvp_ip_val.gate_way,
+				strlen((char *)in->body.kvp_ip_val.gate_way),
+				UTF16_HOST_ENDIAN,
+				(wchar_t *)out->kvp_ip_val.gate_way,
+				MAX_GATEWAY_SIZE);
+		if (len < 0)
+			return len;
+
+		len = utf8s_to_utf16s((char *)in->body.kvp_ip_val.dns_addr,
+				strlen((char *)in->body.kvp_ip_val.dns_addr),
+				UTF16_HOST_ENDIAN,
+				(wchar_t *)out->kvp_ip_val.dns_addr,
+				MAX_IP_ADDR_SIZE);
+		if (len < 0)
+			return len;
+
+		len = utf8s_to_utf16s((char *)in->body.kvp_ip_val.adapter_id,
+				strlen((char *)in->body.kvp_ip_val.adapter_id),
+				UTF16_HOST_ENDIAN,
+				(wchar_t *)out->kvp_ip_val.adapter_id,
+				MAX_IP_ADDR_SIZE);
+		if (len < 0)
+			return len;
+
+		out->kvp_ip_val.dhcp_enabled =
+			in->body.kvp_ip_val.dhcp_enabled;
+		out->kvp_ip_val.addr_family =
+			in->body.kvp_ip_val.addr_family;
+	}
+
+	return 0;
+}
+
+static void process_ib_ipinfo(void *in_msg, void *out_msg, int op)
+{
+	struct hv_kvp_ip_msg *in = in_msg;
+	struct hv_kvp_msg *out = out_msg;
+
+	switch (op) {
+	case KVP_OP_SET_IP_INFO:
+		/*
+		 * Transform all parameters into utf8 encoding.
+		 */
+		utf16s_to_utf8s((wchar_t *)in->kvp_ip_val.ip_addr,
+				MAX_IP_ADDR_SIZE,
+				UTF16_LITTLE_ENDIAN,
+				(__u8 *)out->body.kvp_ip_val.ip_addr,
+				MAX_IP_ADDR_SIZE);
+
+		utf16s_to_utf8s((wchar_t *)in->kvp_ip_val.sub_net,
+				MAX_IP_ADDR_SIZE,
+				UTF16_LITTLE_ENDIAN,
+				(__u8 *)out->body.kvp_ip_val.sub_net,
+				MAX_IP_ADDR_SIZE);
+
+		utf16s_to_utf8s((wchar_t *)in->kvp_ip_val.gate_way,
+				MAX_GATEWAY_SIZE,
+				UTF16_LITTLE_ENDIAN,
+				(__u8 *)out->body.kvp_ip_val.gate_way,
+				MAX_GATEWAY_SIZE);
+
+		utf16s_to_utf8s((wchar_t *)in->kvp_ip_val.dns_addr,
+				MAX_IP_ADDR_SIZE,
+				UTF16_LITTLE_ENDIAN,
+				(__u8 *)out->body.kvp_ip_val.dns_addr,
+				MAX_IP_ADDR_SIZE);
+
+		out->body.kvp_ip_val.dhcp_enabled = in->kvp_ip_val.dhcp_enabled;
+
+	default:
+		utf16s_to_utf8s((wchar_t *)in->kvp_ip_val.adapter_id,
+				MAX_ADAPTER_ID_SIZE,
+				UTF16_LITTLE_ENDIAN,
+				(__u8 *)out->body.kvp_ip_val.adapter_id,
+				MAX_ADAPTER_ID_SIZE);
+
+		out->body.kvp_ip_val.addr_family = in->kvp_ip_val.addr_family;
 	}
 }
 
+
+
+
 static void
 kvp_send_key(struct work_struct *dummy)
 {
@@ -167,6 +348,12 @@ kvp_send_key(struct work_struct *dummy)
 	 */
 
 	switch (message->kvp_hdr.operation) {
+	case KVP_OP_SET_IP_INFO:
+		process_ib_ipinfo(in_msg, message, KVP_OP_SET_IP_INFO);
+		break;
+	case KVP_OP_GET_IP_INFO:
+		process_ib_ipinfo(in_msg, message, KVP_OP_GET_IP_INFO);
+		break;
 	case KVP_OP_SET:
 		switch (in_msg->body.kvp_set.data.value_type) {
 		case REG_SZ:
@@ -243,17 +430,19 @@ kvp_send_key(struct work_struct *dummy)
  */
 
 static void
-kvp_respond_to_host(char *key, char *value, int error)
+kvp_respond_to_host(struct hv_kvp_msg *msg_to_host, int error)
 {
 	struct hv_kvp_msg  *kvp_msg;
 	struct hv_kvp_exchg_msg_value  *kvp_data;
 	char	*key_name;
+	char	*value;
 	struct icmsg_hdr *icmsghdrp;
 	int	keylen = 0;
 	int	valuelen = 0;
 	u32	buf_len;
 	struct vmbus_channel *channel;
 	u64	req_id;
+	int ret;
 
 	/*
 	 * If a transaction is not active; log and return.
@@ -287,6 +476,7 @@ kvp_respond_to_host(char *key, char *value, int error)
 		 */
 		return;
 
+	icmsghdrp->status = error;
 
 	/*
 	 * If the error parameter is set, terminate the host's enumeration
@@ -294,20 +484,27 @@ kvp_respond_to_host(char *key, char *value, int error)
 	 */
 	if (error) {
 		/*
-		 * Something failed or the we have timedout;
-		 * terminate the current  host-side iteration.
+		 * Something failed or we have timedout;
+		 * terminate the current host-side iteration.
 		 */
-		icmsghdrp->status = HV_S_CONT;
 		goto response_done;
 	}
 
-	icmsghdrp->status = HV_S_OK;
-
 	kvp_msg = (struct hv_kvp_msg *)
 			&recv_buffer[sizeof(struct vmbuspipe_hdr) +
 			sizeof(struct icmsg_hdr)];
 
 	switch (kvp_transaction.kvp_msg->kvp_hdr.operation) {
+	case KVP_OP_GET_IP_INFO:
+		ret = process_ob_ipinfo(msg_to_host,
+				 (struct hv_kvp_ip_msg *)kvp_msg,
+				 KVP_OP_GET_IP_INFO);
+		if (ret < 0)
+			icmsghdrp->status = HV_E_FAIL;
+
+		goto response_done;
+	case KVP_OP_SET_IP_INFO:
+		goto response_done;
 	case KVP_OP_GET:
 		kvp_data = &kvp_msg->body.kvp_get.data;
 		goto copy_value;
@@ -321,7 +518,7 @@ kvp_respond_to_host(char *key, char *value, int error)
 	}
 
 	kvp_data = &kvp_msg->body.kvp_enum_data.data;
-	key_name = key;
+	key_name = msg_to_host->body.kvp_enum_data.data.key;
 
 	/*
 	 * The windows host expects the key/value pair to be encoded
@@ -335,6 +532,7 @@ kvp_respond_to_host(char *key, char *value, int error)
 	kvp_data->key_size = 2*(keylen + 1); /* utf16 encoding */
 
 copy_value:
+	value = msg_to_host->body.kvp_enum_data.data.value;
 	valuelen = utf8s_to_utf16s(value, strlen(value), UTF16_HOST_ENDIAN,
 				(wchar_t *) kvp_data->value,
 				(HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2) - 2);
@@ -387,7 +585,8 @@ void hv_kvp_onchannelcallback(void *context)
 		return;
 	}
 
-	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE, &recvlen, &requestid);
+	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
+			 &requestid);
 
 	if (recvlen > 0) {
 		icmsghdrp = (struct icmsg_hdr *)&recv_buffer[
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index d3ac6a40118..a0667de7a04 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -263,7 +263,7 @@ static int util_probe(struct hv_device *dev,
 		(struct hv_util_service *)dev_id->driver_data;
 	int ret;
 
-	srv->recv_buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	srv->recv_buffer = kmalloc(PAGE_SIZE * 2, GFP_KERNEL);
 	if (!srv->recv_buffer)
 		return -ENOMEM;
 	if (srv->util_init) {
@@ -274,7 +274,7 @@ static int util_probe(struct hv_device *dev,
 		}
 	}
 
-	ret = vmbus_open(dev->channel, 2 * PAGE_SIZE, 2 * PAGE_SIZE, NULL, 0,
+	ret = vmbus_open(dev->channel, 4 * PAGE_SIZE, 4 * PAGE_SIZE, NULL, 0,
 			srv->util_cb, dev->channel);
 	if (ret)
 		goto error;
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 0614ff3a7d7..d8d1fadb398 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -410,10 +410,49 @@ enum {
 
 #define HV_PRESENT_BIT			0x80000000
 
-#define HV_LINUX_GUEST_ID_LO		0x00000000
-#define HV_LINUX_GUEST_ID_HI		2976579765
-#define HV_LINUX_GUEST_ID		(((u64)HV_LINUX_GUEST_ID_HI << 32) | \
-					   HV_LINUX_GUEST_ID_LO)
+/*
+ * The guest OS needs to register the guest ID with the hypervisor.
+ * The guest ID is a 64 bit entity and the structure of this ID is
+ * specified in the Hyper-V specification:
+ *
+ * http://msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx
+ *
+ * While the current guideline does not specify how Linux guest ID(s)
+ * need to be generated, our plan is to publish the guidelines for
+ * Linux and other guest operating systems that currently are hosted
+ * on Hyper-V. The implementation here conforms to this yet
+ * unpublished guidelines.
+ *
+ *
+ * Bit(s)
+ * 63 - Indicates if the OS is Open Source or not; 1 is Open Source
+ * 62:56 - Os Type; Linux is 0x100
+ * 55:48 - Distro specific identification
+ * 47:16 - Linux kernel version number
+ * 15:0  - Distro specific identification
+ *
+ *
+ */
+
+#define HV_LINUX_VENDOR_ID		0x8100
+
+/*
+ * Generate the guest ID based on the guideline described above.
+ */
+
+static inline  __u64 generate_guest_id(__u8 d_info1, __u32 kernel_version,
+					__u16 d_info2)
+{
+	__u64 guest_id = 0;
+
+	guest_id = (((__u64)HV_LINUX_VENDOR_ID) << 48);
+	guest_id |= (((__u64)(d_info1)) << 48);
+	guest_id |= (((__u64)(kernel_version)) << 16);
+	guest_id |= ((__u64)(d_info2));
+
+	return guest_id;
+}
+
 
 #define HV_CPU_POWER_MANAGEMENT		(1 << 0)
 #define HV_RECOMMENDATIONS_MAX		4
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 4748086eaaf..8e1a9ec5300 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -34,6 +34,7 @@
 #include <linux/completion.h>
 #include <linux/hyperv.h>
 #include <asm/hyperv.h>
+#include <asm/hypervisor.h>
 #include "hyperv_vmbus.h"
 
 
@@ -146,43 +147,9 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	get_channel_info(hv_dev, device_info);
 
 	if (!strcmp(dev_attr->attr.name, "class_id")) {
-		ret = sprintf(buf, "{%02x%02x%02x%02x-%02x%02x-%02x%02x-"
-			       "%02x%02x%02x%02x%02x%02x%02x%02x}\n",
-			       device_info->chn_type.b[3],
-			       device_info->chn_type.b[2],
-			       device_info->chn_type.b[1],
-			       device_info->chn_type.b[0],
-			       device_info->chn_type.b[5],
-			       device_info->chn_type.b[4],
-			       device_info->chn_type.b[7],
-			       device_info->chn_type.b[6],
-			       device_info->chn_type.b[8],
-			       device_info->chn_type.b[9],
-			       device_info->chn_type.b[10],
-			       device_info->chn_type.b[11],
-			       device_info->chn_type.b[12],
-			       device_info->chn_type.b[13],
-			       device_info->chn_type.b[14],
-			       device_info->chn_type.b[15]);
+		ret = sprintf(buf, "{%pUl}\n", device_info->chn_type.b);
 	} else if (!strcmp(dev_attr->attr.name, "device_id")) {
-		ret = sprintf(buf, "{%02x%02x%02x%02x-%02x%02x-%02x%02x-"
-			       "%02x%02x%02x%02x%02x%02x%02x%02x}\n",
-			       device_info->chn_instance.b[3],
-			       device_info->chn_instance.b[2],
-			       device_info->chn_instance.b[1],
-			       device_info->chn_instance.b[0],
-			       device_info->chn_instance.b[5],
-			       device_info->chn_instance.b[4],
-			       device_info->chn_instance.b[7],
-			       device_info->chn_instance.b[6],
-			       device_info->chn_instance.b[8],
-			       device_info->chn_instance.b[9],
-			       device_info->chn_instance.b[10],
-			       device_info->chn_instance.b[11],
-			       device_info->chn_instance.b[12],
-			       device_info->chn_instance.b[13],
-			       device_info->chn_instance.b[14],
-			       device_info->chn_instance.b[15]);
+		ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b);
 	} else if (!strcmp(dev_attr->attr.name, "modalias")) {
 		print_alias_name(hv_dev, alias_name);
 		ret = sprintf(buf, "vmbus:%s\n", alias_name);
@@ -757,6 +724,9 @@ static int __init hv_acpi_init(void)
 {
 	int ret, t;
 
+	if (x86_hyper != &x86_hyper_ms_hyperv)
+		return -ENODEV;
+
 	init_completion(&probe_event);
 
 	/*
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index b0a2e4c37e1..c74e73b2069 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -41,7 +41,7 @@ comment "Native drivers"
 
 config SENSORS_ABITUGURU
 	tristate "Abit uGuru (rev 1 & 2)"
-	depends on X86 && DMI && EXPERIMENTAL
+	depends on X86 && DMI
 	help
 	  If you say yes here you get support for the sensor part of the first
 	  and second revision of the Abit uGuru chip. The voltage and frequency
@@ -56,7 +56,7 @@ config SENSORS_ABITUGURU
 
 config SENSORS_ABITUGURU3
 	tristate "Abit uGuru (rev 3)"
-	depends on X86 && DMI && EXPERIMENTAL
+	depends on X86 && DMI
 	help
 	  If you say yes here you get support for the sensor part of the
 	  third revision of the Abit uGuru chip. Only reading the sensors
@@ -70,7 +70,7 @@ config SENSORS_ABITUGURU3
 
 config SENSORS_AD7314
 	tristate "Analog Devices AD7314 and compatibles"
-	depends on SPI && EXPERIMENTAL
+	depends on SPI
 	help
 	  If you say yes here you get support for the Analog Devices
 	  AD7314, ADT7301 and ADT7302 temperature sensors.
@@ -80,7 +80,7 @@ config SENSORS_AD7314
 
 config SENSORS_AD7414
 	tristate "Analog Devices AD7414"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Analog Devices
 	  AD7414 temperature monitoring chip.
@@ -90,7 +90,7 @@ config SENSORS_AD7414
 
 config SENSORS_AD7418
 	tristate "Analog Devices AD7416, AD7417 and AD7418"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Analog Devices
 	  AD7416, AD7417 and AD7418 temperature monitoring chips.
@@ -100,7 +100,7 @@ config SENSORS_AD7418
 
 config SENSORS_ADCXX
 	tristate "National Semiconductor ADCxxxSxxx"
-	depends on SPI_MASTER && EXPERIMENTAL
+	depends on SPI_MASTER
 	help
 	  If you say yes here you get support for the National Semiconductor
 	  ADC<bb><c>S<sss> chip family, where
@@ -179,9 +179,19 @@ config SENSORS_ADM9240
 	  This driver can also be built as a module.  If so, the module
 	  will be called adm9240.
 
+config SENSORS_ADT7410
+	tristate "Analog Devices ADT7410"
+	depends on I2C
+	help
+	  If you say yes here you get support for the Analog Devices
+	  ADT7410 temperature monitoring chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called adt7410.
+
 config SENSORS_ADT7411
 	tristate "Analog Devices ADT7411"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Analog Devices
 	  ADT7411 voltage and temperature monitoring chip.
@@ -191,7 +201,7 @@ config SENSORS_ADT7411
 
 config SENSORS_ADT7462
 	tristate "Analog Devices ADT7462"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Analog Devices
 	  ADT7462 temperature monitoring chips.
@@ -201,7 +211,7 @@ config SENSORS_ADT7462
 
 config SENSORS_ADT7470
 	tristate "Analog Devices ADT7470"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Analog Devices
 	  ADT7470 temperature monitoring chips.
@@ -236,7 +246,7 @@ config SENSORS_ASC7621
 
 config SENSORS_K8TEMP
 	tristate "AMD Athlon64/FX or Opteron temperature sensor"
-	depends on X86 && PCI && EXPERIMENTAL
+	depends on X86 && PCI
 	help
 	  If you say yes here you get support for the temperature
 	  sensor(s) inside your CPU. Supported is whole AMD K8
@@ -271,7 +281,7 @@ config SENSORS_FAM15H_POWER
 
 config SENSORS_ASB100
 	tristate "Asus ASB100 Bach"
-	depends on X86 && I2C && EXPERIMENTAL
+	depends on X86 && I2C
 	select HWMON_VID
 	help
 	  If you say yes here you get support for the ASB100 Bach sensor
@@ -282,7 +292,7 @@ config SENSORS_ASB100
 
 config SENSORS_ATXP1
 	tristate "Attansic ATXP1 VID controller"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	select HWMON_VID
 	help
 	  If you say yes here you get support for the Attansic ATXP1 VID
@@ -336,7 +346,7 @@ config SENSORS_EXYNOS4_TMU
 
 config SENSORS_I5K_AMB
 	tristate "FB-DIMM AMB temperature sensor on Intel 5000 series chipsets"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  If you say yes here you get support for FB-DIMM AMB temperature
 	  monitoring chips on systems with the Intel 5000 series chipset.
@@ -445,7 +455,7 @@ config SENSORS_GPIO_FAN
 
 config SENSORS_HIH6130
 	tristate "Honeywell Humidicon HIH-6130 humidity/temperature sensor"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for Honeywell Humidicon
 	  HIH-6130 and HIH-6131 Humidicon humidity sensors.
@@ -455,7 +465,7 @@ config SENSORS_HIH6130
 
 config SENSORS_CORETEMP
 	tristate "Intel Core/Core2/Atom temperature sensor"
-	depends on X86 && PCI && EXPERIMENTAL
+	depends on X86 && PCI
 	help
 	  If you say yes here you get support for the temperature
 	  sensor inside your CPU. Most of the family 6 CPUs
@@ -495,8 +505,8 @@ config SENSORS_IT87
 	select HWMON_VID
 	help
 	  If you say yes here you get support for ITE IT8705F, IT8712F,
-	  IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F and IT8758E
-	  sensor chips, and the SiS960 clone.
+	  IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
+	  IT8782F, and IT8783E/F sensor chips, and the SiS950 clone.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called it87.
@@ -527,7 +537,7 @@ config SENSORS_JC42
 
 config SENSORS_LINEAGE
 	tristate "Lineage Compact Power Line Power Entry Module"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Lineage Compact Power Line
 	  series of DC/DC and AC/DC converters such as CP1800, CP2000AC,
@@ -550,12 +560,12 @@ config SENSORS_LM63
 	  will be called lm63.
 
 config SENSORS_LM70
-	tristate "National Semiconductor LM70 / Texas Instruments TMP121"
+	tristate "National Semiconductor LM70 and compatibles"
 	depends on SPI_MASTER
 	help
 	  If you say yes here you get support for the National Semiconductor
-	  LM70 and Texas Instruments TMP121/TMP123 digital temperature
-	  sensor chips.
+	  LM70, LM71, LM74 and Texas Instruments TMP121/TMP123 digital tempera-
+	  ture sensor chips.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called lm70.
@@ -709,7 +719,7 @@ config SENSORS_LTC4151
 
 config SENSORS_LTC4215
 	tristate "Linear Technology LTC4215"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	default n
 	help
 	  If you say yes here you get support for Linear Technology LTC4215
@@ -720,7 +730,7 @@ config SENSORS_LTC4215
 
 config SENSORS_LTC4245
 	tristate "Linear Technology LTC4245"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	default n
 	help
 	  If you say yes here you get support for Linear Technology LTC4245
@@ -731,7 +741,7 @@ config SENSORS_LTC4245
 
 config SENSORS_LTC4261
 	tristate "Linear Technology LTC4261"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	default n
 	help
 	  If you say yes here you get support for Linear Technology LTC4261
@@ -752,7 +762,7 @@ config SENSORS_LM95241
 
 config SENSORS_LM95245
 	tristate "National Semiconductor LM95245 sensor chip"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for LM95245 sensor chip.
 
@@ -760,10 +770,11 @@ config SENSORS_LM95245
 	  will be called lm95245.
 
 config SENSORS_MAX1111
-	tristate "Maxim MAX1111 Multichannel, Serial 8-bit ADC chip"
+	tristate "Maxim MAX1111 Serial 8-bit ADC chip and compatibles"
 	depends on SPI_MASTER
 	help
-	  Say y here to support Maxim's MAX1111 ADC chips.
+	  Say y here to support Maxim's MAX1110, MAX1111, MAX1112, and MAX1113
+	  ADC chips.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called max1111.
@@ -795,7 +806,7 @@ config SENSORS_MAX1619
 
 config SENSORS_MAX1668
 	tristate "Maxim MAX1668 and compatibles"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for MAX1668, MAX1989 and
 	  MAX1805 chips.
@@ -803,9 +814,18 @@ config SENSORS_MAX1668
 	  This driver can also be built as a module.  If so, the module
 	  will be called max1668.
 
+config SENSORS_MAX197
+	tristate "Maxim MAX197 and compatibles"
+	help
+	  Support for the Maxim MAX197 A/D converter.
+	  Support will include, but not be limited to, MAX197, and MAX199.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called max197.
+
 config SENSORS_MAX6639
 	tristate "Maxim MAX6639 sensor chip"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the MAX6639
 	  sensor chips.
@@ -815,7 +835,7 @@ config SENSORS_MAX6639
 
 config SENSORS_MAX6642
 	tristate "Maxim MAX6642 sensor chip"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for MAX6642 sensor chip.
 	  MAX6642 is a SMBus-Compatible Remote/Local Temperature Sensor
@@ -826,7 +846,7 @@ config SENSORS_MAX6642
 
 config SENSORS_MAX6650
 	tristate "Maxim MAX6650 sensor chip"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the MAX6650 / MAX6651
 	  sensor chips.
@@ -835,18 +855,18 @@ config SENSORS_MAX6650
 	  will be called max6650.
 
 config SENSORS_MCP3021
-	tristate "Microchip MCP3021"
-	depends on I2C && EXPERIMENTAL
+	tristate "Microchip MCP3021 and compatibles"
+	depends on I2C
 	help
-	  If you say yes here you get support for the MCP3021 chip
-	  that is a A/D converter (ADC) with 10-bit resolution.
+	  If you say yes here you get support for MCP3021 and MCP3221.
+	  The MCP3021 is a A/D converter (ADC) with 10-bit and the MCP3221
+	  with 12-bit resolution.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called mcp3021.
 
 config SENSORS_NTC_THERMISTOR
 	tristate "NTC thermistor support"
-	depends on EXPERIMENTAL
 	help
 	  This driver supports NTC thermistors sensor reading and its
 	  interpretation. The driver can also monitor the temperature and
@@ -951,7 +971,7 @@ config SENSORS_SIS5595
 
 config SENSORS_SMM665
 	tristate "Summit Microelectronics SMM665"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	default n
 	help
 	  If you say yes here you get support for the hardware monitoring
@@ -966,7 +986,7 @@ config SENSORS_SMM665
 
 config SENSORS_DME1737
 	tristate "SMSC DME1737, SCH311x and compatibles"
-	depends on I2C && EXPERIMENTAL && !PPC
+	depends on I2C && !PPC
 	select HWMON_VID
 	help
 	  If you say yes here you get support for the hardware monitoring
@@ -1042,7 +1062,7 @@ config SENSORS_SMSC47M192
 
 config SENSORS_SMSC47B397
 	tristate "SMSC LPC47B397-NC"
-	depends on EXPERIMENTAL && !PPC
+	depends on !PPC
 	help
 	  If you say yes here you get support for the SMSC LPC47B397-NC
 	  sensor chip.
@@ -1116,7 +1136,7 @@ config SENSORS_ADS7871
 
 config SENSORS_AMC6821
 	tristate "Texas Instruments AMC6821"
-	depends on I2C  && EXPERIMENTAL
+	depends on I2C 
 	help
 	  If you say yes here you get support for the Texas Instruments
 	  AMC6821 hardware monitoring chips.
@@ -1125,11 +1145,11 @@ config SENSORS_AMC6821
 	  will be called amc6821.
 
 config SENSORS_INA2XX
-	tristate "Texas Instruments INA219, INA226"
-	depends on I2C && EXPERIMENTAL
+	tristate "Texas Instruments INA219 and compatibles"
+	depends on I2C
 	help
-	  If you say yes here you get support for INA219 and INA226 power
-	  monitor chips.
+	  If you say yes here you get support for INA219, INA220, INA226, and
+	  INA230 power monitor chips.
 
 	  The INA2xx driver is configured for the default configuration of
 	  the part as described in the datasheet.
@@ -1149,7 +1169,7 @@ config SENSORS_THMC50
 
 config SENSORS_TMP102
 	tristate "Texas Instruments TMP102"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for Texas Instruments TMP102
 	  sensor chips.
@@ -1159,7 +1179,7 @@ config SENSORS_TMP102
 
 config SENSORS_TMP401
 	tristate "Texas Instruments TMP401 and compatibles"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for Texas Instruments TMP401 and
 	  TMP411 temperature sensor chips.
@@ -1169,7 +1189,7 @@ config SENSORS_TMP401
 
 config SENSORS_TMP421
 	tristate "Texas Instruments TMP421 and compatible"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for Texas Instruments TMP421,
 	  TMP422 and TMP423 temperature sensor chips.
@@ -1261,7 +1281,7 @@ config SENSORS_W83792D
 
 config SENSORS_W83793
 	tristate "Winbond W83793"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	select HWMON_VID
 	help
 	  If you say yes here you get support for the Winbond W83793
@@ -1273,7 +1293,7 @@ config SENSORS_W83793
 
 config SENSORS_W83795
 	tristate "Winbond/Nuvoton W83795G/ADG"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Winbond W83795G and
 	  W83795ADG hardware monitoring chip, including manual fan speed
@@ -1284,7 +1304,7 @@ config SENSORS_W83795
 
 config SENSORS_W83795_FANCTRL
 	boolean "Include automatic fan control support (DANGEROUS)"
-	depends on SENSORS_W83795 && EXPERIMENTAL
+	depends on SENSORS_W83795
 	default n
 	help
 	  If you say yes here, support for automatic fan speed control
@@ -1301,7 +1321,7 @@ config SENSORS_W83795_FANCTRL
 
 config SENSORS_W83L785TS
 	tristate "Winbond W83L785TS-S"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Winbond W83L785TS-S
 	  sensor chip, which is used on the Asus A7N8X, among other
@@ -1312,7 +1332,7 @@ config SENSORS_W83L785TS
 
 config SENSORS_W83L786NG
 	tristate "Winbond W83L786NG, W83L786NR"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Winbond W83L786NG
 	  and W83L786NR sensor chips.
@@ -1427,7 +1447,7 @@ config SENSORS_ACPI_POWER
 
 config SENSORS_ATK0110
 	tristate "ASUS ATK0110"
-	depends on X86 && EXPERIMENTAL
+	depends on X86
 	help
 	  If you say yes here you get support for the ACPI hardware
 	  monitoring interface found in many ASUS motherboards. This
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 7aa98119c4a..a62ce17ddbf 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_SENSORS_ADM9240)	+= adm9240.o
 obj-$(CONFIG_SENSORS_ADS1015)	+= ads1015.o
 obj-$(CONFIG_SENSORS_ADS7828)	+= ads7828.o
 obj-$(CONFIG_SENSORS_ADS7871)	+= ads7871.o
+obj-$(CONFIG_SENSORS_ADT7410)	+= adt7410.o
 obj-$(CONFIG_SENSORS_ADT7411)	+= adt7411.o
 obj-$(CONFIG_SENSORS_ADT7462)	+= adt7462.o
 obj-$(CONFIG_SENSORS_ADT7470)	+= adt7470.o
@@ -94,6 +95,7 @@ obj-$(CONFIG_SENSORS_MAX1111)	+= max1111.o
 obj-$(CONFIG_SENSORS_MAX16065)	+= max16065.o
 obj-$(CONFIG_SENSORS_MAX1619)	+= max1619.o
 obj-$(CONFIG_SENSORS_MAX1668)	+= max1668.o
+obj-$(CONFIG_SENSORS_MAX197)	+= max197.o
 obj-$(CONFIG_SENSORS_MAX6639)	+= max6639.o
 obj-$(CONFIG_SENSORS_MAX6642)	+= max6642.o
 obj-$(CONFIG_SENSORS_MAX6650)	+= max6650.o
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
index d4419b47f3d..78b81793ddd 100644
--- a/drivers/hwmon/abituguru.c
+++ b/drivers/hwmon/abituguru.c
@@ -1278,7 +1278,8 @@ static int __devinit abituguru_probe(struct platform_device *pdev)
 		0x00, 0x01, 0x03, 0x04, 0x0A, 0x08, 0x0E, 0x02,
 		0x09, 0x06, 0x05, 0x0B, 0x0F, 0x0D, 0x07, 0x0C };
 
-	data = kzalloc(sizeof(struct abituguru_data), GFP_KERNEL);
+	data = devm_kzalloc(&pdev->dev, sizeof(struct abituguru_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1430,8 +1431,6 @@ abituguru_probe_error:
 	for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
 		device_remove_file(&pdev->dev,
 			&abituguru_sysfs_attr[i].dev_attr);
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
 	return res;
 }
 
@@ -1446,8 +1445,6 @@ static int __devexit abituguru_remove(struct platform_device *pdev)
 	for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
 		device_remove_file(&pdev->dev,
 			&abituguru_sysfs_attr[i].dev_attr);
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
 
 	return 0;
 }
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index 5d582aebff8..b174b8b2b4d 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -976,7 +976,8 @@ static int __devinit abituguru3_probe(struct platform_device *pdev)
 	u8 buf[2];
 	u16 id;
 
-	data = kzalloc(sizeof(struct abituguru3_data), GFP_KERNEL);
+	data = devm_kzalloc(&pdev->dev, sizeof(struct abituguru3_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1068,7 +1069,6 @@ abituguru3_probe_error:
 	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
 		device_remove_file(&pdev->dev,
 			&abituguru3_sysfs_attr[i].dev_attr);
-	kfree(data);
 	return res;
 }
 
@@ -1084,8 +1084,6 @@ static int __devexit abituguru3_remove(struct platform_device *pdev)
 	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
 		device_remove_file(&pdev->dev,
 			&abituguru3_sysfs_attr[i].dev_attr);
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c
index cfec802cf9c..37c01e72d69 100644
--- a/drivers/hwmon/ad7314.c
+++ b/drivers/hwmon/ad7314.c
@@ -87,10 +87,18 @@ static ssize_t ad7314_show_temperature(struct device *dev,
 	}
 }
 
+static ssize_t ad7314_show_name(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
+}
+
+static DEVICE_ATTR(name, S_IRUGO, ad7314_show_name, NULL);
 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
 			  ad7314_show_temperature, NULL, 0);
 
 static struct attribute *ad7314_attributes[] = {
+	&dev_attr_name.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	NULL,
 };
@@ -104,16 +112,16 @@ static int __devinit ad7314_probe(struct spi_device *spi_dev)
 	int ret;
 	struct ad7314_data *chip;
 
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
-	if (chip == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	chip = devm_kzalloc(&spi_dev->dev, sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL)
+		return -ENOMEM;
+
 	dev_set_drvdata(&spi_dev->dev, chip);
 
 	ret = sysfs_create_group(&spi_dev->dev.kobj, &ad7314_group);
 	if (ret < 0)
-		goto error_free_chip;
+		return ret;
+
 	chip->hwmon_dev = hwmon_device_register(&spi_dev->dev);
 	if (IS_ERR(chip->hwmon_dev)) {
 		ret = PTR_ERR(chip->hwmon_dev);
@@ -124,9 +132,6 @@ static int __devinit ad7314_probe(struct spi_device *spi_dev)
 	return 0;
 error_remove_group:
 	sysfs_remove_group(&spi_dev->dev.kobj, &ad7314_group);
-error_free_chip:
-	kfree(chip);
-error_ret:
 	return ret;
 }
 
@@ -136,7 +141,6 @@ static int __devexit ad7314_remove(struct spi_device *spi_dev)
 
 	hwmon_device_unregister(chip->hwmon_dev);
 	sysfs_remove_group(&spi_dev->dev.kobj, &ad7314_group);
-	kfree(chip);
 
 	return 0;
 }
diff --git a/drivers/hwmon/ad7414.c b/drivers/hwmon/ad7414.c
index 06d2d60d1fd..b420fb3f3a7 100644
--- a/drivers/hwmon/ad7414.c
+++ b/drivers/hwmon/ad7414.c
@@ -185,16 +185,13 @@ static int ad7414_probe(struct i2c_client *client,
 	int err;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
-				     I2C_FUNC_SMBUS_READ_WORD_DATA)) {
-		err = -EOPNOTSUPP;
-		goto exit;
-	}
+				     I2C_FUNC_SMBUS_READ_WORD_DATA))
+		return -EOPNOTSUPP;
 
-	data = kzalloc(sizeof(struct ad7414_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct ad7414_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->lock);
@@ -214,7 +211,7 @@ static int ad7414_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &ad7414_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -226,9 +223,6 @@ static int ad7414_probe(struct i2c_client *client,
 
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &ad7414_group);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -238,7 +232,6 @@ static int __devexit ad7414_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &ad7414_group);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/ad7418.c b/drivers/hwmon/ad7418.c
index a50a6bef16c..57d4a629567 100644
--- a/drivers/hwmon/ad7418.c
+++ b/drivers/hwmon/ad7418.c
@@ -227,16 +227,13 @@ static int ad7418_probe(struct i2c_client *client,
 	int err;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
-					I2C_FUNC_SMBUS_WORD_DATA)) {
-		err = -EOPNOTSUPP;
-		goto exit;
-	}
+					I2C_FUNC_SMBUS_WORD_DATA))
+		return -EOPNOTSUPP;
 
-	data = kzalloc(sizeof(struct ad7418_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct ad7418_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 
@@ -268,7 +265,7 @@ static int ad7418_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -280,9 +277,6 @@ static int ad7418_probe(struct i2c_client *client,
 
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -291,7 +285,6 @@ static int ad7418_remove(struct i2c_client *client)
 	struct ad7418_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/adcxx.c b/drivers/hwmon/adcxx.c
index a3d3183454a..f4c5867170d 100644
--- a/drivers/hwmon/adcxx.c
+++ b/drivers/hwmon/adcxx.c
@@ -141,10 +141,7 @@ static ssize_t adcxx_set_max(struct device *dev,
 static ssize_t adcxx_show_name(struct device *dev, struct device_attribute
 			      *devattr, char *buf)
 {
-	struct spi_device *spi = to_spi_device(dev);
-	struct adcxx *adc = spi_get_drvdata(spi);
-
-	return sprintf(buf, "adcxx%ds\n", adc->channels);
+	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
 }
 
 static struct sensor_device_attribute ad_input[] = {
@@ -171,7 +168,7 @@ static int __devinit adcxx_probe(struct spi_device *spi)
 	int status;
 	int i;
 
-	adc = kzalloc(sizeof *adc, GFP_KERNEL);
+	adc = devm_kzalloc(&spi->dev, sizeof(*adc), GFP_KERNEL);
 	if (!adc)
 		return -ENOMEM;
 
@@ -208,7 +205,6 @@ out_err:
 
 	spi_set_drvdata(spi, NULL);
 	mutex_unlock(&adc->lock);
-	kfree(adc);
 	return status;
 }
 
@@ -224,7 +220,6 @@ static int __devexit adcxx_remove(struct spi_device *spi)
 
 	spi_set_drvdata(spi, NULL);
 	mutex_unlock(&adc->lock);
-	kfree(adc);
 
 	return 0;
 }
diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c
index 80cc465d8ac..97f4718382f 100644
--- a/drivers/hwmon/adm1029.c
+++ b/drivers/hwmon/adm1029.c
@@ -342,11 +342,10 @@ static int adm1029_probe(struct i2c_client *client,
 	struct adm1029_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct adm1029_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct adm1029_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -355,15 +354,13 @@ static int adm1029_probe(struct i2c_client *client,
 	 * Initialize the ADM1029 chip
 	 * Check config register
 	 */
-	if (adm1029_init_client(client) == 0) {
-		err = -ENODEV;
-		goto exit_free;
-	}
+	if (adm1029_init_client(client) == 0)
+		return -ENODEV;
 
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &adm1029_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -375,9 +372,6 @@ static int adm1029_probe(struct i2c_client *client,
 
  exit_remove_files:
 	sysfs_remove_group(&client->dev.kobj, &adm1029_group);
- exit_free:
-	kfree(data);
- exit:
 	return err;
 }
 
@@ -405,7 +399,6 @@ static int adm1029_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &adm1029_group);
 
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c
index 5a78d102a0f..8b24d1a4a2b 100644
--- a/drivers/hwmon/adm9240.c
+++ b/drivers/hwmon/adm9240.c
@@ -500,31 +500,6 @@ static ssize_t set_aout(struct device *dev,
 }
 static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout);
 
-/* chassis_clear */
-static ssize_t chassis_clear_legacy(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf, size_t count)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	long val;
-	int err;
-
-	err = kstrtol(buf, 10, &val);
-	if (err)
-		return err;
-
-	dev_warn(dev, "Attribute chassis_clear is deprecated, "
-		 "use intrusion0_alarm instead\n");
-
-	if (val == 1) {
-		i2c_smbus_write_byte_data(client,
-				ADM9240_REG_CHASSIS_CLEAR, 0x80);
-		dev_dbg(&client->dev, "chassis intrusion latch cleared\n");
-	}
-	return count;
-}
-static DEVICE_ATTR(chassis_clear, S_IWUSR, NULL, chassis_clear_legacy);
-
 static ssize_t chassis_clear(struct device *dev,
 		struct device_attribute *attr,
 		const char *buf, size_t count)
@@ -586,7 +561,6 @@ static struct attribute *adm9240_attributes[] = {
 	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
 	&dev_attr_alarms.attr,
 	&dev_attr_aout_output.attr,
-	&dev_attr_chassis_clear.attr,
 	&sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
 	&dev_attr_cpu0_vid.attr,
 	NULL
diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
index 1958f03efd7..2798246ad81 100644
--- a/drivers/hwmon/ads1015.c
+++ b/drivers/hwmon/ads1015.c
@@ -156,7 +156,6 @@ static int ads1015_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	for (k = 0; k < ADS1015_CHANNELS; ++k)
 		device_remove_file(&client->dev, &ads1015_in[k].dev_attr);
-	kfree(data);
 	return 0;
 }
 
@@ -254,11 +253,10 @@ static int ads1015_probe(struct i2c_client *client,
 	int err;
 	unsigned int k;
 
-	data = kzalloc(sizeof(struct ads1015_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct ads1015_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -284,8 +282,6 @@ static int ads1015_probe(struct i2c_client *client,
 exit_remove:
 	for (k = 0; k < ADS1015_CHANNELS; ++k)
 		device_remove_file(&client->dev, &ads1015_in[k].dev_attr);
-	kfree(data);
-exit:
 	return err;
 }
 
diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c
index bf3fdf49559..1f9e8af0f32 100644
--- a/drivers/hwmon/ads7828.c
+++ b/drivers/hwmon/ads7828.c
@@ -154,7 +154,6 @@ static int ads7828_remove(struct i2c_client *client)
 	struct ads7828_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &ads7828_group);
-	kfree(i2c_get_clientdata(client));
 	return 0;
 }
 
@@ -217,11 +216,10 @@ static int ads7828_probe(struct i2c_client *client,
 	struct ads7828_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct ads7828_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct ads7828_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -229,7 +227,7 @@ static int ads7828_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &ads7828_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -241,9 +239,6 @@ static int ads7828_probe(struct i2c_client *client,
 
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &ads7828_group);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c
index e65c6e45d36..1b53aa42b6d 100644
--- a/drivers/hwmon/ads7871.c
+++ b/drivers/hwmon/ads7871.c
@@ -139,6 +139,12 @@ static ssize_t show_voltage(struct device *dev,
 	}
 }
 
+static ssize_t ads7871_show_name(struct device *dev,
+				 struct device_attribute *devattr, char *buf)
+{
+	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
+}
+
 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_voltage, NULL, 0);
 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 1);
 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 2);
@@ -148,6 +154,8 @@ static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 5);
 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 6);
 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 7);
 
+static DEVICE_ATTR(name, S_IRUGO, ads7871_show_name, NULL);
+
 static struct attribute *ads7871_attributes[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
@@ -157,6 +165,7 @@ static struct attribute *ads7871_attributes[] = {
 	&sensor_dev_attr_in5_input.dev_attr.attr,
 	&sensor_dev_attr_in6_input.dev_attr.attr,
 	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&dev_attr_name.attr,
 	NULL
 };
 
@@ -189,20 +198,17 @@ static int __devinit ads7871_probe(struct spi_device *spi)
 	 * because there is no other error checking on an SPI bus
 	 * we need to make sure we really have a chip
 	 */
-	if (val != ret) {
-		err = -ENODEV;
-		goto exit;
-	}
+	if (val != ret)
+		return -ENODEV;
 
-	pdata = kzalloc(sizeof(struct ads7871_data), GFP_KERNEL);
-	if (!pdata) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	pdata = devm_kzalloc(&spi->dev, sizeof(struct ads7871_data),
+			     GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
 
 	err = sysfs_create_group(&spi->dev.kobj, &ads7871_group);
 	if (err < 0)
-		goto error_free;
+		return err;
 
 	spi_set_drvdata(spi, pdata);
 
@@ -216,9 +222,6 @@ static int __devinit ads7871_probe(struct spi_device *spi)
 
 error_remove:
 	sysfs_remove_group(&spi->dev.kobj, &ads7871_group);
-error_free:
-	kfree(pdata);
-exit:
 	return err;
 }
 
@@ -228,7 +231,6 @@ static int __devexit ads7871_remove(struct spi_device *spi)
 
 	hwmon_device_unregister(pdata->hwmon_dev);
 	sysfs_remove_group(&spi->dev.kobj, &ads7871_group);
-	kfree(pdata);
 	return 0;
 }
 
diff --git a/drivers/hwmon/adt7410.c b/drivers/hwmon/adt7410.c
new file mode 100644
index 00000000000..030c8d7c33a
--- /dev/null
+++ b/drivers/hwmon/adt7410.c
@@ -0,0 +1,464 @@
+/*
+ * adt7410.c - Part of lm_sensors, Linux kernel modules for hardware
+ *	 monitoring
+ * This driver handles the ADT7410 and compatible digital temperature sensors.
+ * Hartmut Knaack <knaack.h@gmx.de> 2012-07-22
+ * based on lm75.c by Frodo Looijaard <frodol@dds.nl>
+ * and adt7410.c from iio-staging by Sonic Zhang <sonic.zhang@analog.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+
+/*
+ * ADT7410 registers definition
+ */
+
+#define ADT7410_TEMPERATURE		0
+#define ADT7410_STATUS			2
+#define ADT7410_CONFIG			3
+#define ADT7410_T_ALARM_HIGH		4
+#define ADT7410_T_ALARM_LOW		6
+#define ADT7410_T_CRIT			8
+#define ADT7410_T_HYST			0xA
+
+/*
+ * ADT7410 status
+ */
+#define ADT7410_STAT_T_LOW		(1 << 4)
+#define ADT7410_STAT_T_HIGH		(1 << 5)
+#define ADT7410_STAT_T_CRIT		(1 << 6)
+#define ADT7410_STAT_NOT_RDY		(1 << 7)
+
+/*
+ * ADT7410 config
+ */
+#define ADT7410_FAULT_QUEUE_MASK	(1 << 0 | 1 << 1)
+#define ADT7410_CT_POLARITY		(1 << 2)
+#define ADT7410_INT_POLARITY		(1 << 3)
+#define ADT7410_EVENT_MODE		(1 << 4)
+#define ADT7410_MODE_MASK		(1 << 5 | 1 << 6)
+#define ADT7410_FULL			(0 << 5 | 0 << 6)
+#define ADT7410_PD			(1 << 5 | 1 << 6)
+#define ADT7410_RESOLUTION		(1 << 7)
+
+/*
+ * ADT7410 masks
+ */
+#define ADT7410_T13_VALUE_MASK			0xFFF8
+#define ADT7410_T_HYST_MASK			0xF
+
+/* straight from the datasheet */
+#define ADT7410_TEMP_MIN (-55000)
+#define ADT7410_TEMP_MAX 150000
+
+enum adt7410_type {		/* keep sorted in alphabetical order */
+	adt7410,
+};
+
+/* Addresses scanned */
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+					I2C_CLIENT_END };
+
+static const u8 ADT7410_REG_TEMP[4] = {
+	ADT7410_TEMPERATURE,		/* input */
+	ADT7410_T_ALARM_HIGH,		/* high */
+	ADT7410_T_ALARM_LOW,		/* low */
+	ADT7410_T_CRIT,			/* critical */
+};
+
+/* Each client has this additional data */
+struct adt7410_data {
+	struct device		*hwmon_dev;
+	struct mutex		update_lock;
+	u8			config;
+	u8			oldconfig;
+	bool			valid;		/* true if registers valid */
+	unsigned long		last_updated;	/* In jiffies */
+	s16			temp[4];	/* Register values,
+						   0 = input
+						   1 = high
+						   2 = low
+						   3 = critical */
+	u8			hyst;		/* hysteresis offset */
+};
+
+/*
+ * adt7410 register access by I2C
+ */
+static int adt7410_temp_ready(struct i2c_client *client)
+{
+	int i, status;
+
+	for (i = 0; i < 6; i++) {
+		status = i2c_smbus_read_byte_data(client, ADT7410_STATUS);
+		if (status < 0)
+			return status;
+		if (!(status & ADT7410_STAT_NOT_RDY))
+			return 0;
+		msleep(60);
+	}
+	return -ETIMEDOUT;
+}
+
+static struct adt7410_data *adt7410_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7410_data *data = i2c_get_clientdata(client);
+	struct adt7410_data *ret = data;
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		int i, status;
+
+		dev_dbg(&client->dev, "Starting update\n");
+
+		status = adt7410_temp_ready(client); /* check for new value */
+		if (unlikely(status)) {
+			ret = ERR_PTR(status);
+			goto abort;
+		}
+		for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+			status = i2c_smbus_read_word_swapped(client,
+							ADT7410_REG_TEMP[i]);
+			if (unlikely(status < 0)) {
+				dev_dbg(dev,
+					"Failed to read value: reg %d, error %d\n",
+					ADT7410_REG_TEMP[i], status);
+				ret = ERR_PTR(status);
+				goto abort;
+			}
+			data->temp[i] = status;
+		}
+		status = i2c_smbus_read_byte_data(client, ADT7410_T_HYST);
+		if (unlikely(status < 0)) {
+			dev_dbg(dev,
+				"Failed to read value: reg %d, error %d\n",
+				ADT7410_T_HYST, status);
+			ret = ERR_PTR(status);
+			goto abort;
+		}
+		data->hyst = status;
+		data->last_updated = jiffies;
+		data->valid = true;
+	}
+
+abort:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static s16 ADT7410_TEMP_TO_REG(long temp)
+{
+	return DIV_ROUND_CLOSEST(SENSORS_LIMIT(temp, ADT7410_TEMP_MIN,
+					       ADT7410_TEMP_MAX) * 128, 1000);
+}
+
+static int ADT7410_REG_TO_TEMP(struct adt7410_data *data, s16 reg)
+{
+	/* in 13 bit mode, bits 0-2 are status flags - mask them out */
+	if (!(data->config & ADT7410_RESOLUTION))
+		reg &= ADT7410_T13_VALUE_MASK;
+	/*
+	 * temperature is stored in twos complement format, in steps of
+	 * 1/128°C
+	 */
+	return DIV_ROUND_CLOSEST(reg * 1000, 128);
+}
+
+/*-----------------------------------------------------------------------*/
+
+/* sysfs attributes for hwmon */
+
+static ssize_t adt7410_show_temp(struct device *dev,
+				 struct device_attribute *da, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct adt7410_data *data = adt7410_update_device(dev);
+
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+
+	return sprintf(buf, "%d\n", ADT7410_REG_TO_TEMP(data,
+		       data->temp[attr->index]));
+}
+
+static ssize_t adt7410_set_temp(struct device *dev,
+				struct device_attribute *da,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7410_data *data = i2c_get_clientdata(client);
+	int nr = attr->index;
+	long temp;
+	int ret;
+
+	ret = kstrtol(buf, 10, &temp);
+	if (ret)
+		return ret;
+
+	mutex_lock(&data->update_lock);
+	data->temp[nr] = ADT7410_TEMP_TO_REG(temp);
+	ret = i2c_smbus_write_word_swapped(client, ADT7410_REG_TEMP[nr],
+					   data->temp[nr]);
+	if (ret)
+		count = ret;
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t adt7410_show_t_hyst(struct device *dev,
+				   struct device_attribute *da,
+				   char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct adt7410_data *data;
+	int nr = attr->index;
+	int hyst;
+
+	data = adt7410_update_device(dev);
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+	hyst = (data->hyst & ADT7410_T_HYST_MASK) * 1000;
+
+	/*
+	 * hysteresis is stored as a 4 bit offset in the device, convert it
+	 * to an absolute value
+	 */
+	if (nr == 2)	/* min has positive offset, others have negative */
+		hyst = -hyst;
+	return sprintf(buf, "%d\n",
+		       ADT7410_REG_TO_TEMP(data, data->temp[nr]) - hyst);
+}
+
+static ssize_t adt7410_set_t_hyst(struct device *dev,
+				  struct device_attribute *da,
+				  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7410_data *data = i2c_get_clientdata(client);
+	int limit, ret;
+	long hyst;
+
+	ret = kstrtol(buf, 10, &hyst);
+	if (ret)
+		return ret;
+	/* convert absolute hysteresis value to a 4 bit delta value */
+	limit = ADT7410_REG_TO_TEMP(data, data->temp[1]);
+	hyst = SENSORS_LIMIT(hyst, ADT7410_TEMP_MIN, ADT7410_TEMP_MAX);
+	data->hyst = SENSORS_LIMIT(DIV_ROUND_CLOSEST(limit - hyst, 1000),
+				   0, ADT7410_T_HYST_MASK);
+	ret = i2c_smbus_write_byte_data(client, ADT7410_T_HYST, data->hyst);
+	if (ret)
+		return ret;
+
+	return count;
+}
+
+static ssize_t adt7410_show_alarm(struct device *dev,
+				  struct device_attribute *da,
+				  char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(client, ADT7410_STATUS);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%d\n", !!(ret & attr->index));
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, adt7410_show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+			  adt7410_show_temp, adt7410_set_temp, 1);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
+			  adt7410_show_temp, adt7410_set_temp, 2);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,
+			  adt7410_show_temp, adt7410_set_temp, 3);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
+			  adt7410_show_t_hyst, adt7410_set_t_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO,
+			  adt7410_show_t_hyst, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO,
+			  adt7410_show_t_hyst, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, adt7410_show_alarm,
+			  NULL, ADT7410_STAT_T_LOW);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, adt7410_show_alarm,
+			  NULL, ADT7410_STAT_T_HIGH);
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, adt7410_show_alarm,
+			  NULL, ADT7410_STAT_T_CRIT);
+
+static struct attribute *adt7410_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group adt7410_group = {
+	.attrs = adt7410_attributes,
+};
+
+/*-----------------------------------------------------------------------*/
+
+/* device probe and removal */
+
+static int adt7410_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adt7410_data *data;
+	int ret;
+
+	if (!i2c_check_functionality(client->adapter,
+			I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct adt7410_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* configure as specified */
+	ret = i2c_smbus_read_byte_data(client, ADT7410_CONFIG);
+	if (ret < 0) {
+		dev_dbg(&client->dev, "Can't read config? %d\n", ret);
+		return ret;
+	}
+	data->oldconfig = ret;
+	/*
+	 * Set to 16 bit resolution, continous conversion and comparator mode.
+	 */
+	data->config = ret | ADT7410_FULL | ADT7410_RESOLUTION |
+			ADT7410_EVENT_MODE;
+	if (data->config != data->oldconfig) {
+		ret = i2c_smbus_write_byte_data(client, ADT7410_CONFIG,
+						data->config);
+		if (ret)
+			return ret;
+	}
+	dev_dbg(&client->dev, "Config %02x\n", data->config);
+
+	/* Register sysfs hooks */
+	ret = sysfs_create_group(&client->dev.kobj, &adt7410_group);
+	if (ret)
+		goto exit_restore;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		ret = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	dev_info(&client->dev, "sensor '%s'\n", client->name);
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &adt7410_group);
+exit_restore:
+	i2c_smbus_write_byte_data(client, ADT7410_CONFIG, data->oldconfig);
+	return ret;
+}
+
+static int adt7410_remove(struct i2c_client *client)
+{
+	struct adt7410_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adt7410_group);
+	if (data->oldconfig != data->config)
+		i2c_smbus_write_byte_data(client, ADT7410_CONFIG,
+					  data->oldconfig);
+	return 0;
+}
+
+static const struct i2c_device_id adt7410_ids[] = {
+	{ "adt7410", adt7410, },
+	{ /* LIST END */ }
+};
+MODULE_DEVICE_TABLE(i2c, adt7410_ids);
+
+#ifdef CONFIG_PM
+static int adt7410_suspend(struct device *dev)
+{
+	int ret;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7410_data *data = i2c_get_clientdata(client);
+
+	ret = i2c_smbus_write_byte_data(client, ADT7410_CONFIG,
+					data->config | ADT7410_PD);
+	return ret;
+}
+
+static int adt7410_resume(struct device *dev)
+{
+	int ret;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7410_data *data = i2c_get_clientdata(client);
+
+	ret = i2c_smbus_write_byte_data(client, ADT7410_CONFIG, data->config);
+	return ret;
+}
+
+static const struct dev_pm_ops adt7410_dev_pm_ops = {
+	.suspend	= adt7410_suspend,
+	.resume		= adt7410_resume,
+};
+#define ADT7410_DEV_PM_OPS (&adt7410_dev_pm_ops)
+#else
+#define ADT7410_DEV_PM_OPS NULL
+#endif /* CONFIG_PM */
+
+static struct i2c_driver adt7410_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adt7410",
+		.pm	= ADT7410_DEV_PM_OPS,
+	},
+	.probe		= adt7410_probe,
+	.remove		= adt7410_remove,
+	.id_table	= adt7410_ids,
+	.address_list	= normal_i2c,
+};
+
+module_i2c_driver(adt7410_driver);
+
+MODULE_AUTHOR("Hartmut Knaack");
+MODULE_DESCRIPTION("ADT7410 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/adt7411.c b/drivers/hwmon/adt7411.c
index 71bacc56e13..fe72c69a2d6 100644
--- a/drivers/hwmon/adt7411.c
+++ b/drivers/hwmon/adt7411.c
@@ -283,7 +283,7 @@ static int __devinit adt7411_probe(struct i2c_client *client,
 	struct adt7411_data *data;
 	int ret;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -294,14 +294,14 @@ static int __devinit adt7411_probe(struct i2c_client *client,
 	ret = adt7411_modify_bit(client, ADT7411_REG_CFG1,
 				 ADT7411_CFG1_START_MONITOR, 1);
 	if (ret < 0)
-		goto exit_free;
+		return ret;
 
 	/* force update on first occasion */
 	data->next_update = jiffies;
 
 	ret = sysfs_create_group(&client->dev.kobj, &adt7411_attr_grp);
 	if (ret)
-		goto exit_free;
+		return ret;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -315,8 +315,6 @@ static int __devinit adt7411_probe(struct i2c_client *client,
 
  exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp);
- exit_free:
-	kfree(data);
 	return ret;
 }
 
@@ -326,7 +324,6 @@ static int __devexit adt7411_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c
index 339269f76e5..baee482aedf 100644
--- a/drivers/hwmon/adt7462.c
+++ b/drivers/hwmon/adt7462.c
@@ -1931,11 +1931,10 @@ static int adt7462_probe(struct i2c_client *client,
 	struct adt7462_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct adt7462_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct adt7462_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->lock);
@@ -1946,7 +1945,7 @@ static int adt7462_probe(struct i2c_client *client,
 	data->attrs.attrs = adt7462_attr;
 	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -1958,9 +1957,6 @@ static int adt7462_probe(struct i2c_client *client,
 
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -1970,7 +1966,6 @@ static int adt7462_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c
index 54ec890521f..39ecb1a3b9e 100644
--- a/drivers/hwmon/adt7470.c
+++ b/drivers/hwmon/adt7470.c
@@ -1256,11 +1256,10 @@ static int adt7470_probe(struct i2c_client *client,
 	struct adt7470_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct adt7470_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct adt7470_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	data->num_temp_sensors = -1;
 	data->auto_update_interval = AUTO_UPDATE_INTERVAL;
@@ -1277,7 +1276,7 @@ static int adt7470_probe(struct i2c_client *client,
 	data->attrs.attrs = adt7470_attr;
 	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -1299,9 +1298,6 @@ exit_unregister:
 	hwmon_device_unregister(data->hwmon_dev);
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -1313,7 +1309,6 @@ static int adt7470_remove(struct i2c_client *client)
 	wait_for_completion(&data->auto_update_stop);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &data->attrs);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c
index f600fa1f92e..ae482e3afda 100644
--- a/drivers/hwmon/amc6821.c
+++ b/drivers/hwmon/amc6821.c
@@ -862,12 +862,10 @@ static int amc6821_probe(
 	struct amc6821_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct amc6821_data), GFP_KERNEL);
-	if (!data) {
-		dev_err(&client->dev, "out of memory.\n");
+	data = devm_kzalloc(&client->dev, sizeof(struct amc6821_data),
+			    GFP_KERNEL);
+	if (!data)
 		return -ENOMEM;
-	}
-
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -877,11 +875,11 @@ static int amc6821_probe(
 	 */
 	err = amc6821_init_client(client);
 	if (err)
-		goto err_free;
+		return err;
 
 	err = sysfs_create_group(&client->dev.kobj, &amc6821_attr_grp);
 	if (err)
-		goto err_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (!IS_ERR(data->hwmon_dev))
@@ -890,8 +888,6 @@ static int amc6821_probe(
 	err = PTR_ERR(data->hwmon_dev);
 	dev_err(&client->dev, "error registering hwmon device.\n");
 	sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp);
-err_free:
-	kfree(data);
 	return err;
 }
 
@@ -902,8 +898,6 @@ static int amc6821_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &amc6821_attr_grp);
 
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 28270886051..8f3f6f2c45f 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -53,10 +53,10 @@
 
 #define APPLESMC_MAX_DATA_LENGTH 32
 
-/* wait up to 32 ms for a status change. */
+/* wait up to 128 ms for a status change. */
 #define APPLESMC_MIN_WAIT	0x0010
 #define APPLESMC_RETRY_WAIT	0x0100
-#define APPLESMC_MAX_WAIT	0x8000
+#define APPLESMC_MAX_WAIT	0x20000
 
 #define APPLESMC_READ_CMD	0x10
 #define APPLESMC_WRITE_CMD	0x11
diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c
index 4b8814deabb..a227be47149 100644
--- a/drivers/hwmon/asb100.c
+++ b/drivers/hwmon/asb100.c
@@ -787,12 +787,10 @@ static int asb100_probe(struct i2c_client *client,
 	int err;
 	struct asb100_data *data;
 
-	data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL);
-	if (!data) {
-		pr_debug("probe failed, kzalloc failed!\n");
-		err = -ENOMEM;
-		goto ERROR0;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct asb100_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->lock);
@@ -801,7 +799,7 @@ static int asb100_probe(struct i2c_client *client,
 	/* Attach secondary lm75 clients */
 	err = asb100_detect_subclients(client);
 	if (err)
-		goto ERROR1;
+		return err;
 
 	/* Initialize the chip */
 	asb100_init_client(client);
@@ -829,9 +827,6 @@ ERROR4:
 ERROR3:
 	i2c_unregister_device(data->lm75[1]);
 	i2c_unregister_device(data->lm75[0]);
-ERROR1:
-	kfree(data);
-ERROR0:
 	return err;
 }
 
@@ -845,8 +840,6 @@ static int asb100_remove(struct i2c_client *client)
 	i2c_unregister_device(data->lm75[1]);
 	i2c_unregister_device(data->lm75[0]);
 
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 351d1f4593e..cccb0e9d45b 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -34,6 +34,12 @@ static const struct dmi_system_id __initconst atk_force_new_if[] = {
 		.matches = {
 			DMI_MATCH(DMI_BOARD_NAME, "SABERTOOTH X58")
 		}
+	}, {
+		/* Old interface reads the same sensor for fan0 and fan1 */
+		.ident = "Asus M5A78L",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "M5A78L")
+		}
 	},
 	{ }
 };
@@ -956,7 +962,6 @@ static int atk_add_sensor(struct atk_data *data, union acpi_object *obj)
 
 	return 1;
 out:
-	kfree(sensor->acpi_name);
 	kfree(sensor);
 	return err;
 }
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index faa16f80db9..984a3f13923 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -196,7 +196,7 @@ struct tjmax {
 	int tjmax;
 };
 
-static struct tjmax __cpuinitconst tjmax_table[] = {
+static const struct tjmax __cpuinitconst tjmax_table[] = {
 	{ "CPU D410", 100000 },
 	{ "CPU D425", 100000 },
 	{ "CPU D510", 100000 },
@@ -815,17 +815,20 @@ static int __init coretemp_init(void)
 	if (err)
 		goto exit;
 
+	get_online_cpus();
 	for_each_online_cpu(i)
 		get_core_online(i);
 
 #ifndef CONFIG_HOTPLUG_CPU
 	if (list_empty(&pdev_list)) {
+		put_online_cpus();
 		err = -ENODEV;
 		goto exit_driver_unreg;
 	}
 #endif
 
 	register_hotcpu_notifier(&coretemp_cpu_notifier);
+	put_online_cpus();
 	return 0;
 
 #ifndef CONFIG_HOTPLUG_CPU
@@ -840,6 +843,7 @@ static void __exit coretemp_exit(void)
 {
 	struct pdev_entry *p, *n;
 
+	get_online_cpus();
 	unregister_hotcpu_notifier(&coretemp_cpu_notifier);
 	mutex_lock(&pdev_list_mutex);
 	list_for_each_entry_safe(p, n, &pdev_list, list) {
@@ -848,6 +852,7 @@ static void __exit coretemp_exit(void)
 		kfree(p);
 	}
 	mutex_unlock(&pdev_list_mutex);
+	put_online_cpus();
 	platform_driver_unregister(&coretemp_driver);
 }
 
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
index e7c6a19f3b2..fe0eeec0b75 100644
--- a/drivers/hwmon/dme1737.c
+++ b/drivers/hwmon/dme1737.c
@@ -2475,11 +2475,9 @@ static int dme1737_i2c_probe(struct i2c_client *client,
 	struct device *dev = &client->dev;
 	int err;
 
-	data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(dev, sizeof(struct dme1737_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	data->type = id->driver_data;
@@ -2491,14 +2489,14 @@ static int dme1737_i2c_probe(struct i2c_client *client,
 	err = dme1737_init_device(dev);
 	if (err) {
 		dev_err(dev, "Failed to initialize device.\n");
-		goto exit_kfree;
+		return err;
 	}
 
 	/* Create sysfs files */
 	err = dme1737_create_files(dev);
 	if (err) {
 		dev_err(dev, "Failed to create sysfs files.\n");
-		goto exit_kfree;
+		return err;
 	}
 
 	/* Register device */
@@ -2513,9 +2511,6 @@ static int dme1737_i2c_probe(struct i2c_client *client,
 
 exit_remove:
 	dme1737_remove_files(dev);
-exit_kfree:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -2526,7 +2521,6 @@ static int dme1737_i2c_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	dme1737_remove_files(&client->dev);
 
-	kfree(data);
 	return 0;
 }
 
@@ -2645,19 +2639,16 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
 	int err;
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	if (!request_region(res->start, DME1737_EXTENT, "dme1737")) {
+	if (!devm_request_region(dev, res->start, DME1737_EXTENT, "dme1737")) {
 		dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
 			(unsigned short)res->start,
 			(unsigned short)res->start + DME1737_EXTENT - 1);
-		err = -EBUSY;
-		goto exit;
+		return -EBUSY;
 	}
 
-	data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit_release_region;
-	}
+	data = devm_kzalloc(dev, sizeof(struct dme1737_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	data->addr = res->start;
 	platform_set_drvdata(pdev, data);
@@ -2683,8 +2674,7 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
 			   (device == SCH5127_DEVICE)) {
 			data->type = sch5127;
 		} else {
-			err = -ENODEV;
-			goto exit_kfree;
+			return -ENODEV;
 		}
 	}
 
@@ -2703,14 +2693,14 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
 	err = dme1737_init_device(dev);
 	if (err) {
 		dev_err(dev, "Failed to initialize device.\n");
-		goto exit_kfree;
+		return err;
 	}
 
 	/* Create sysfs files */
 	err = dme1737_create_files(dev);
 	if (err) {
 		dev_err(dev, "Failed to create sysfs files.\n");
-		goto exit_kfree;
+		return err;
 	}
 
 	/* Register device */
@@ -2725,12 +2715,6 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
 
 exit_remove_files:
 	dme1737_remove_files(dev);
-exit_kfree:
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
-exit_release_region:
-	release_region(res->start, DME1737_EXTENT);
-exit:
 	return err;
 }
 
@@ -2740,9 +2724,6 @@ static int __devexit dme1737_isa_remove(struct platform_device *pdev)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	dme1737_remove_files(&pdev->dev);
-	release_region(data->addr, DME1737_EXTENT);
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
 
 	return 0;
 }
diff --git a/drivers/hwmon/ds620.c b/drivers/hwmon/ds620.c
index 50663efad41..f1d6b422cf0 100644
--- a/drivers/hwmon/ds620.c
+++ b/drivers/hwmon/ds620.c
@@ -232,11 +232,10 @@ static int ds620_probe(struct i2c_client *client,
 	struct ds620_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct ds620_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct ds620_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -247,7 +246,7 @@ static int ds620_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &ds620_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -261,9 +260,6 @@ static int ds620_probe(struct i2c_client *client,
 
 exit_remove_files:
 	sysfs_remove_group(&client->dev.kobj, &ds620_group);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -274,8 +270,6 @@ static int ds620_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &ds620_group);
 
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index 149dcb0e148..68ab94bde3f 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -306,11 +306,10 @@ static int emc1403_probe(struct i2c_client *client,
 	int res;
 	struct thermal_data *data;
 
-	data = kzalloc(sizeof(struct thermal_data), GFP_KERNEL);
-	if (data == NULL) {
-		dev_warn(&client->dev, "out of memory");
+	data = devm_kzalloc(&client->dev, sizeof(struct thermal_data),
+			    GFP_KERNEL);
+	if (data == NULL)
 		return -ENOMEM;
-	}
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->mutex);
@@ -319,21 +318,19 @@ static int emc1403_probe(struct i2c_client *client,
 	res = sysfs_create_group(&client->dev.kobj, &m_thermal_gr);
 	if (res) {
 		dev_warn(&client->dev, "create group failed\n");
-		goto thermal_error1;
+		return res;
 	}
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
 		res = PTR_ERR(data->hwmon_dev);
 		dev_warn(&client->dev, "register hwmon dev failed\n");
-		goto thermal_error2;
+		goto thermal_error;
 	}
 	dev_info(&client->dev, "EMC1403 Thermal chip found\n");
-	return res;
+	return 0;
 
-thermal_error2:
+thermal_error:
 	sysfs_remove_group(&client->dev.kobj, &m_thermal_gr);
-thermal_error1:
-	kfree(data);
 	return res;
 }
 
@@ -343,7 +340,6 @@ static int emc1403_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &m_thermal_gr);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c
index 7bb8e888692..77f434c5823 100644
--- a/drivers/hwmon/emc2103.c
+++ b/drivers/hwmon/emc2103.c
@@ -590,7 +590,8 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
 
-	data = kzalloc(sizeof(struct emc2103_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(struct emc2103_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -608,7 +609,7 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		if (status < 0) {
 			dev_dbg(&client->dev, "reg 0x%02x, err %d\n", REG_CONF1,
 				status);
-			goto exit_free;
+			return status;
 		}
 
 		/* detect current state of hardware */
@@ -631,7 +632,7 @@ emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	/* Register sysfs hooks */
 	status = sysfs_create_group(&client->dev.kobj, &emc2103_group);
 	if (status)
-		goto exit_free;
+		return status;
 
 	if (data->temp_count >= 3) {
 		status = sysfs_create_group(&client->dev.kobj,
@@ -666,8 +667,6 @@ exit_remove_temp3:
 		sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group);
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &emc2103_group);
-exit_free:
-	kfree(data);
 	return status;
 }
 
@@ -685,7 +684,6 @@ static int emc2103_remove(struct i2c_client *client)
 
 	sysfs_remove_group(&client->dev.kobj, &emc2103_group);
 
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 6d1226365e3..50e4ce2d22d 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -2274,7 +2274,8 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 	int err, i;
 	u8 start_reg, reg;
 
-	data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL);
+	data = devm_kzalloc(&pdev->dev, sizeof(struct f71882fg_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -2288,13 +2289,11 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 	start_reg = f71882fg_read8(data, F71882FG_REG_START);
 	if (start_reg & 0x04) {
 		dev_warn(&pdev->dev, "Hardware monitor is powered down\n");
-		err = -ENODEV;
-		goto exit_free;
+		return -ENODEV;
 	}
 	if (!(start_reg & 0x03)) {
 		dev_warn(&pdev->dev, "Hardware monitoring not activated\n");
-		err = -ENODEV;
-		goto exit_free;
+		return -ENODEV;
 	}
 
 	/* Register sysfs interface files */
@@ -2422,8 +2421,6 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 exit_unregister_sysfs:
 	f71882fg_remove(pdev); /* Will unregister the sysfs files for us */
 	return err; /* f71882fg_remove() also frees our data */
-exit_free:
-	kfree(data);
 	return err;
 }
 
@@ -2525,17 +2522,13 @@ static int f71882fg_remove(struct platform_device *pdev)
 				ARRAY_SIZE(fxxxx_auto_pwm_attr[0]) * nr_fans);
 		}
 	}
-
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
-
 	return 0;
 }
 
-static int __init f71882fg_find(int sioaddr, unsigned short *address,
-	struct f71882fg_sio_data *sio_data)
+static int __init f71882fg_find(int sioaddr, struct f71882fg_sio_data *sio_data)
 {
 	u16 devid;
+	unsigned short address;
 	int err = superio_enter(sioaddr);
 	if (err)
 		return err;
@@ -2603,25 +2596,25 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
 		goto exit;
 	}
 
-	*address = superio_inw(sioaddr, SIO_REG_ADDR);
-	if (*address == 0) {
+	address = superio_inw(sioaddr, SIO_REG_ADDR);
+	if (address == 0) {
 		pr_warn("Base address not set\n");
 		err = -ENODEV;
 		goto exit;
 	}
-	*address &= ~(REGION_LENGTH - 1);	/* Ignore 3 LSB */
+	address &= ~(REGION_LENGTH - 1);	/* Ignore 3 LSB */
 
-	err = 0;
+	err = address;
 	pr_info("Found %s chip at %#x, revision %d\n",
-		f71882fg_names[sio_data->type],	(unsigned int)*address,
+		f71882fg_names[sio_data->type],	(unsigned int)address,
 		(int)superio_inb(sioaddr, SIO_REG_DEVREV));
 exit:
 	superio_exit(sioaddr);
 	return err;
 }
 
-static int __init f71882fg_device_add(unsigned short address,
-	const struct f71882fg_sio_data *sio_data)
+static int __init f71882fg_device_add(int address,
+				      const struct f71882fg_sio_data *sio_data)
 {
 	struct resource res = {
 		.start	= address,
@@ -2668,19 +2661,21 @@ exit_device_put:
 
 static int __init f71882fg_init(void)
 {
-	int err = -ENODEV;
-	unsigned short address;
+	int err;
+	int address;
 	struct f71882fg_sio_data sio_data;
 
 	memset(&sio_data, 0, sizeof(sio_data));
 
-	if (f71882fg_find(0x2e, &address, &sio_data) &&
-	    f71882fg_find(0x4e, &address, &sio_data))
-		goto exit;
+	address = f71882fg_find(0x2e, &sio_data);
+	if (address < 0)
+		address = f71882fg_find(0x4e, &sio_data);
+	if (address < 0)
+		return address;
 
 	err = platform_driver_register(&f71882fg_driver);
 	if (err)
-		goto exit;
+		return err;
 
 	err = f71882fg_device_add(address, &sio_data);
 	if (err)
@@ -2690,7 +2685,6 @@ static int __init f71882fg_init(void)
 
 exit_driver:
 	platform_driver_unregister(&f71882fg_driver);
-exit:
 	return err;
 }
 
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index ece4159bd45..f7dba229395 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -838,7 +838,8 @@ static int f75375_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(client->adapter,
 				I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
-	data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(struct f75375_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -848,7 +849,7 @@ static int f75375_probe(struct i2c_client *client,
 
 	err = sysfs_create_group(&client->dev.kobj, &f75375_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	if (data->kind != f75373) {
 		err = sysfs_chmod_file(&client->dev.kobj,
@@ -875,8 +876,6 @@ static int f75375_probe(struct i2c_client *client,
 
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &f75375_group);
-exit_free:
-	kfree(data);
 	return err;
 }
 
@@ -885,7 +884,6 @@ static int f75375_remove(struct i2c_client *client)
 	struct f75375_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &f75375_group);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c
index 2764b78a784..68ad7d25551 100644
--- a/drivers/hwmon/fam15h_power.c
+++ b/drivers/hwmon/fam15h_power.c
@@ -129,12 +129,12 @@ static bool __devinit fam15h_power_is_internal_node0(struct pci_dev *f4)
  * counter saturations resulting in bogus power readings.
  * We correct this value ourselves to cope with older BIOSes.
  */
-static DEFINE_PCI_DEVICE_TABLE(affected_device) = {
+static const struct pci_device_id affected_device[] = {
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) },
 	{ 0 }
 };
 
-static void __devinit tweak_runavg_range(struct pci_dev *pdev)
+static void tweak_runavg_range(struct pci_dev *pdev)
 {
 	u32 val;
 
@@ -158,6 +158,16 @@ static void __devinit tweak_runavg_range(struct pci_dev *pdev)
 		REG_TDP_RUNNING_AVERAGE, val);
 }
 
+#ifdef CONFIG_PM
+static int fam15h_power_resume(struct pci_dev *pdev)
+{
+	tweak_runavg_range(pdev);
+	return 0;
+}
+#else
+#define fam15h_power_resume NULL
+#endif
+
 static void __devinit fam15h_power_init_data(struct pci_dev *f4,
 					     struct fam15h_power_data *data)
 {
@@ -188,7 +198,7 @@ static int __devinit fam15h_power_probe(struct pci_dev *pdev,
 					const struct pci_device_id *id)
 {
 	struct fam15h_power_data *data;
-	struct device *dev;
+	struct device *dev = &pdev->dev;
 	int err;
 
 	/*
@@ -198,23 +208,19 @@ static int __devinit fam15h_power_probe(struct pci_dev *pdev,
 	 */
 	tweak_runavg_range(pdev);
 
-	if (!fam15h_power_is_internal_node0(pdev)) {
-		err = -ENODEV;
-		goto exit;
-	}
+	if (!fam15h_power_is_internal_node0(pdev))
+		return -ENODEV;
+
+	data = devm_kzalloc(dev, sizeof(struct fam15h_power_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-	data = kzalloc(sizeof(struct fam15h_power_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
 	fam15h_power_init_data(pdev, data);
-	dev = &pdev->dev;
 
 	dev_set_drvdata(dev, data);
 	err = sysfs_create_group(&dev->kobj, &fam15h_power_attr_group);
 	if (err)
-		goto exit_free_data;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -226,9 +232,6 @@ static int __devinit fam15h_power_probe(struct pci_dev *pdev,
 
 exit_remove_group:
 	sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group);
-exit_free_data:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -241,8 +244,6 @@ static void __devexit fam15h_power_remove(struct pci_dev *pdev)
 	data = dev_get_drvdata(dev);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group);
-	dev_set_drvdata(dev, NULL);
-	kfree(data);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(fam15h_power_id_table) = {
@@ -256,6 +257,7 @@ static struct pci_driver fam15h_power_driver = {
 	.id_table = fam15h_power_id_table,
 	.probe = fam15h_power_probe,
 	.remove = __devexit_p(fam15h_power_remove),
+	.resume = fam15h_power_resume,
 };
 
 module_pci_driver(fam15h_power_driver);
diff --git a/drivers/hwmon/g760a.c b/drivers/hwmon/g760a.c
index ebcd2698e4d..8b2106f60ed 100644
--- a/drivers/hwmon/g760a.c
+++ b/drivers/hwmon/g760a.c
@@ -207,7 +207,8 @@ static int g760a_probe(struct i2c_client *client,
 				     I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
 
-	data = kzalloc(sizeof(struct g760a_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(struct g760a_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -223,7 +224,7 @@ static int g760a_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &g760a_group);
 	if (err)
-		goto error_sysfs_create_group;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -235,9 +236,6 @@ static int g760a_probe(struct i2c_client *client,
 
 error_hwmon_device_register:
 	sysfs_remove_group(&client->dev.kobj, &g760a_group);
-error_sysfs_create_group:
-	kfree(data);
-
 	return err;
 }
 
@@ -246,8 +244,6 @@ static int g760a_remove(struct i2c_client *client)
 	struct g760a_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &g760a_group);
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 7f3f4a38572..70717d4a5e8 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -5,10 +5,18 @@
  * Zero Drift Bi-Directional Current/Power Monitor with I2C Interface
  * Datasheet: http://www.ti.com/product/ina219
  *
+ * INA220:
+ * Bi-Directional Current/Power Monitor with I2C Interface
+ * Datasheet: http://www.ti.com/product/ina220
+ *
  * INA226:
  * Bi-Directional Current/Power Monitor with I2C Interface
  * Datasheet: http://www.ti.com/product/ina226
  *
+ * INA230:
+ * Bi-directional Current/Power Monitor with I2C Interface
+ * Datasheet: http://www.ti.com/product/ina230
+ *
  * Copyright (C) 2012 Lothar Felten <l-felten@ti.com>
  * Thanks to Jan Volkering
  *
@@ -57,33 +65,48 @@
 
 enum ina2xx_ids { ina219, ina226 };
 
+struct ina2xx_config {
+	u16 config_default;
+	int calibration_factor;
+	int registers;
+	int shunt_div;
+	int bus_voltage_shift;
+	int bus_voltage_lsb;	/* uV */
+	int power_lsb;		/* uW */
+};
+
 struct ina2xx_data {
 	struct device *hwmon_dev;
+	const struct ina2xx_config *config;
 
 	struct mutex update_lock;
 	bool valid;
 	unsigned long last_updated;
 
 	int kind;
-	int registers;
 	u16 regs[INA2XX_MAX_REGISTERS];
 };
 
-int ina2xx_read_word(struct i2c_client *client, int reg)
-{
-	int val = i2c_smbus_read_word_data(client, reg);
-	if (unlikely(val < 0)) {
-		dev_dbg(&client->dev,
-			"Failed to read register: %d\n", reg);
-		return val;
-	}
-	return be16_to_cpu(val);
-}
-
-void ina2xx_write_word(struct i2c_client *client, int reg, int data)
-{
-	i2c_smbus_write_word_data(client, reg, cpu_to_be16(data));
-}
+static const struct ina2xx_config ina2xx_config[] = {
+	[ina219] = {
+		.config_default = INA219_CONFIG_DEFAULT,
+		.calibration_factor = 40960000,
+		.registers = INA219_REGISTERS,
+		.shunt_div = 100,
+		.bus_voltage_shift = 3,
+		.bus_voltage_lsb = 4000,
+		.power_lsb = 20000,
+	},
+	[ina226] = {
+		.config_default = INA226_CONFIG_DEFAULT,
+		.calibration_factor = 5120000,
+		.registers = INA226_REGISTERS,
+		.shunt_div = 400,
+		.bus_voltage_shift = 0,
+		.bus_voltage_lsb = 1250,
+		.power_lsb = 25000,
+	},
+};
 
 static struct ina2xx_data *ina2xx_update_device(struct device *dev)
 {
@@ -101,8 +124,8 @@ static struct ina2xx_data *ina2xx_update_device(struct device *dev)
 		dev_dbg(&client->dev, "Starting ina2xx update\n");
 
 		/* Read all registers */
-		for (i = 0; i < data->registers; i++) {
-			int rv = ina2xx_read_word(client, i);
+		for (i = 0; i < data->config->registers; i++) {
+			int rv = i2c_smbus_read_word_swapped(client, i);
 			if (rv < 0) {
 				ret = ERR_PTR(rv);
 				goto abort;
@@ -117,73 +140,26 @@ abort:
 	return ret;
 }
 
-static int ina219_get_value(struct ina2xx_data *data, u8 reg)
-{
-	/*
-	 * calculate exact value for the given register
-	 * we assume default power-on reset settings:
-	 * bus voltage range 32V
-	 * gain = /8
-	 * adc 1 & 2 -> conversion time 532uS
-	 * mode is continuous shunt and bus
-	 * calibration value is INA219_CALIBRATION_VALUE
-	 */
-	int val = data->regs[reg];
-
-	switch (reg) {
-	case INA2XX_SHUNT_VOLTAGE:
-		/* LSB=10uV. Convert to mV. */
-		val = DIV_ROUND_CLOSEST(val, 100);
-		break;
-	case INA2XX_BUS_VOLTAGE:
-		/* LSB=4mV. Register is not right aligned, convert to mV. */
-		val = (val >> 3) * 4;
-		break;
-	case INA2XX_POWER:
-		/* LSB=20mW. Convert to uW */
-		val = val * 20 * 1000;
-		break;
-	case INA2XX_CURRENT:
-		/* LSB=1mA (selected). Is in mA */
-		break;
-	default:
-		/* programmer goofed */
-		WARN_ON_ONCE(1);
-		val = 0;
-		break;
-	}
-
-	return val;
-}
-
-static int ina226_get_value(struct ina2xx_data *data, u8 reg)
+static int ina2xx_get_value(struct ina2xx_data *data, u8 reg)
 {
-	/*
-	 * calculate exact value for the given register
-	 * we assume default power-on reset settings:
-	 * bus voltage range 32V
-	 * gain = /8
-	 * adc 1 & 2 -> conversion time 532uS
-	 * mode is continuous shunt and bus
-	 * calibration value is INA226_CALIBRATION_VALUE
-	 */
-	int val = data->regs[reg];
+	int val;
 
 	switch (reg) {
 	case INA2XX_SHUNT_VOLTAGE:
-		/* LSB=2.5uV. Convert to mV. */
-		val = DIV_ROUND_CLOSEST(val, 400);
+		val = DIV_ROUND_CLOSEST(data->regs[reg],
+					data->config->shunt_div);
 		break;
 	case INA2XX_BUS_VOLTAGE:
-		/* LSB=1.25mV. Convert to mV. */
-		val = val + DIV_ROUND_CLOSEST(val, 4);
+		val = (data->regs[reg] >> data->config->bus_voltage_shift)
+		  * data->config->bus_voltage_lsb;
+		val = DIV_ROUND_CLOSEST(val, 1000);
 		break;
 	case INA2XX_POWER:
-		/* LSB=25mW. Convert to uW */
-		val = val * 25 * 1000;
+		val = data->regs[reg] * data->config->power_lsb;
 		break;
 	case INA2XX_CURRENT:
 		/* LSB=1mA (selected). Is in mA */
+		val = data->regs[reg];
 		break;
 	default:
 		/* programmer goofed */
@@ -200,23 +176,12 @@ static ssize_t ina2xx_show_value(struct device *dev,
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
 	struct ina2xx_data *data = ina2xx_update_device(dev);
-	int value = 0;
 
 	if (IS_ERR(data))
 		return PTR_ERR(data);
 
-	switch (data->kind) {
-	case ina219:
-		value = ina219_get_value(data, attr->index);
-		break;
-	case ina226:
-		value = ina226_get_value(data, attr->index);
-		break;
-	default:
-		WARN_ON_ONCE(1);
-		break;
-	}
-	return snprintf(buf, PAGE_SIZE, "%d\n", value);
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+			ina2xx_get_value(data, attr->index));
 }
 
 /* shunt voltage */
@@ -254,7 +219,7 @@ static int ina2xx_probe(struct i2c_client *client,
 	struct i2c_adapter *adapter = client->adapter;
 	struct ina2xx_data *data;
 	struct ina2xx_platform_data *pdata;
-	int ret = 0;
+	int ret;
 	long shunt = 10000; /* default shunt value 10mOhms */
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
@@ -275,34 +240,15 @@ static int ina2xx_probe(struct i2c_client *client,
 
 	/* set the device type */
 	data->kind = id->driver_data;
+	data->config = &ina2xx_config[data->kind];
 
-	switch (data->kind) {
-	case ina219:
-		/* device configuration */
-		ina2xx_write_word(client, INA2XX_CONFIG, INA219_CONFIG_DEFAULT);
-
-		/* set current LSB to 1mA, shunt is in uOhms */
-		/* (equation 13 in datasheet) */
-		ina2xx_write_word(client, INA2XX_CALIBRATION, 40960000 / shunt);
-		dev_info(&client->dev,
-			 "power monitor INA219 (Rshunt = %li uOhm)\n", shunt);
-		data->registers = INA219_REGISTERS;
-		break;
-	case ina226:
-		/* device configuration */
-		ina2xx_write_word(client, INA2XX_CONFIG, INA226_CONFIG_DEFAULT);
-
-		/* set current LSB to 1mA, shunt is in uOhms */
-		/* (equation 1 in datasheet)*/
-		ina2xx_write_word(client, INA2XX_CALIBRATION, 5120000 / shunt);
-		dev_info(&client->dev,
-			 "power monitor INA226 (Rshunt = %li uOhm)\n", shunt);
-		data->registers = INA226_REGISTERS;
-		break;
-	default:
-		/* unknown device id */
-		return -ENODEV;
-	}
+	/* device configuration */
+	i2c_smbus_write_word_swapped(client, INA2XX_CONFIG,
+				     data->config->config_default);
+	/* set current LSB to 1mA, shunt is in uOhms */
+	/* (equation 13 in datasheet) */
+	i2c_smbus_write_word_swapped(client, INA2XX_CALIBRATION,
+				     data->config->calibration_factor / shunt);
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -317,6 +263,9 @@ static int ina2xx_probe(struct i2c_client *client,
 		goto out_err_hwmon;
 	}
 
+	dev_info(&client->dev, "power monitor %s (Rshunt = %li uOhm)\n",
+		 id->name, shunt);
+
 	return 0;
 
 out_err_hwmon:
@@ -336,7 +285,9 @@ static int ina2xx_remove(struct i2c_client *client)
 
 static const struct i2c_device_id ina2xx_id[] = {
 	{ "ina219", ina219 },
+	{ "ina220", ina219 },
 	{ "ina226", ina226 },
+	{ "ina230", ina226 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, ina2xx_id);
diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index 5253d23361d..dee9eec2036 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -20,6 +20,7 @@
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/io.h>
 
 #include <linux/completion.h>
 #include <linux/mfd/core.h>
@@ -106,42 +107,37 @@ static int __devinit jz4740_hwmon_probe(struct platform_device *pdev)
 	int ret;
 	struct jz4740_hwmon *hwmon;
 
-	hwmon = kmalloc(sizeof(*hwmon), GFP_KERNEL);
-	if (!hwmon) {
-		dev_err(&pdev->dev, "Failed to allocate driver structure\n");
+	hwmon = devm_kzalloc(&pdev->dev, sizeof(*hwmon), GFP_KERNEL);
+	if (!hwmon)
 		return -ENOMEM;
-	}
 
 	hwmon->cell = mfd_get_cell(pdev);
 
 	hwmon->irq = platform_get_irq(pdev, 0);
 	if (hwmon->irq < 0) {
-		ret = hwmon->irq;
-		dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret);
-		goto err_free;
+		dev_err(&pdev->dev, "Failed to get platform irq: %d\n",
+			hwmon->irq);
+		return hwmon->irq;
 	}
 
 	hwmon->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!hwmon->mem) {
-		ret = -ENOENT;
 		dev_err(&pdev->dev, "Failed to get platform mmio resource\n");
-		goto err_free;
+		return -ENOENT;
 	}
 
-	hwmon->mem = request_mem_region(hwmon->mem->start,
+	hwmon->mem = devm_request_mem_region(&pdev->dev, hwmon->mem->start,
 			resource_size(hwmon->mem), pdev->name);
 	if (!hwmon->mem) {
-		ret = -EBUSY;
 		dev_err(&pdev->dev, "Failed to request mmio memory region\n");
-		goto err_free;
+		return -EBUSY;
 	}
 
-	hwmon->base = ioremap_nocache(hwmon->mem->start,
-			resource_size(hwmon->mem));
+	hwmon->base = devm_ioremap_nocache(&pdev->dev, hwmon->mem->start,
+					   resource_size(hwmon->mem));
 	if (!hwmon->base) {
-		ret = -EBUSY;
 		dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
-		goto err_release_mem_region;
+		return -EBUSY;
 	}
 
 	init_completion(&hwmon->read_completion);
@@ -149,17 +145,18 @@ static int __devinit jz4740_hwmon_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, hwmon);
 
-	ret = request_irq(hwmon->irq, jz4740_hwmon_irq, 0, pdev->name, hwmon);
+	ret = devm_request_irq(&pdev->dev, hwmon->irq, jz4740_hwmon_irq, 0,
+			       pdev->name, hwmon);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to request irq: %d\n", ret);
-		goto err_iounmap;
+		return ret;
 	}
 	disable_irq(hwmon->irq);
 
 	ret = sysfs_create_group(&pdev->dev.kobj, &jz4740_hwmon_attr_group);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to create sysfs group: %d\n", ret);
-		goto err_free_irq;
+		return ret;
 	}
 
 	hwmon->hwmon = hwmon_device_register(&pdev->dev);
@@ -172,16 +169,6 @@ static int __devinit jz4740_hwmon_probe(struct platform_device *pdev)
 
 err_remove_file:
 	sysfs_remove_group(&pdev->dev.kobj, &jz4740_hwmon_attr_group);
-err_free_irq:
-	free_irq(hwmon->irq, hwmon);
-err_iounmap:
-	platform_set_drvdata(pdev, NULL);
-	iounmap(hwmon->base);
-err_release_mem_region:
-	release_mem_region(hwmon->mem->start, resource_size(hwmon->mem));
-err_free:
-	kfree(hwmon);
-
 	return ret;
 }
 
@@ -192,14 +179,6 @@ static int __devexit jz4740_hwmon_remove(struct platform_device *pdev)
 	hwmon_device_unregister(hwmon->hwmon);
 	sysfs_remove_group(&pdev->dev.kobj, &jz4740_hwmon_attr_group);
 
-	free_irq(hwmon->irq, hwmon);
-
-	iounmap(hwmon->base);
-	release_mem_region(hwmon->mem->start, resource_size(hwmon->mem));
-
-	platform_set_drvdata(pdev, NULL);
-	kfree(hwmon);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
index 472f79521a9..2d1777a03ed 100644
--- a/drivers/hwmon/lm70.c
+++ b/drivers/hwmon/lm70.c
@@ -43,6 +43,8 @@
 
 #define LM70_CHIP_LM70		0	/* original NS LM70 */
 #define LM70_CHIP_TMP121	1	/* TI TMP121/TMP123 */
+#define LM70_CHIP_LM71		2	/* NS LM71 */
+#define LM70_CHIP_LM74		3	/* NS LM74 */
 
 struct lm70 {
 	struct device *hwmon_dev;
@@ -88,9 +90,13 @@ static ssize_t lm70_sense_temp(struct device *dev,
 	 * Celsius.
 	 * So it's equivalent to multiplying by 0.25 * 1000 = 250.
 	 *
-	 * TMP121/TMP123:
+	 * LM74 and TMP121/TMP123:
 	 * 13 bits of 2's complement data, discard LSB 3 bits,
 	 * resolution 0.0625 degrees celsius.
+	 *
+	 * LM71:
+	 * 14 bits of 2's complement data, discard LSB 2 bits,
+	 * resolution 0.0312 degrees celsius.
 	 */
 	switch (p_lm70->chip) {
 	case LM70_CHIP_LM70:
@@ -98,8 +104,13 @@ static ssize_t lm70_sense_temp(struct device *dev,
 		break;
 
 	case LM70_CHIP_TMP121:
+	case LM70_CHIP_LM74:
 		val = ((int)raw / 8) * 625 / 10;
 		break;
+
+	case LM70_CHIP_LM71:
+		val = ((int)raw / 4) * 3125 / 100;
+		break;
 	}
 
 	status = sprintf(buf, "%d\n", val); /* millidegrees Celsius */
@@ -113,20 +124,7 @@ static DEVICE_ATTR(temp1_input, S_IRUGO, lm70_sense_temp, NULL);
 static ssize_t lm70_show_name(struct device *dev, struct device_attribute
 			      *devattr, char *buf)
 {
-	struct lm70 *p_lm70 = dev_get_drvdata(dev);
-	int ret;
-
-	switch (p_lm70->chip) {
-	case LM70_CHIP_LM70:
-		ret = sprintf(buf, "lm70\n");
-		break;
-	case LM70_CHIP_TMP121:
-		ret = sprintf(buf, "tmp121\n");
-		break;
-	default:
-		ret = -EINVAL;
-	}
-	return ret;
+	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
 }
 
 static DEVICE_ATTR(name, S_IRUGO, lm70_show_name, NULL);
@@ -139,17 +137,13 @@ static int __devinit lm70_probe(struct spi_device *spi)
 	struct lm70 *p_lm70;
 	int status;
 
-	/* signaling is SPI_MODE_0 for both LM70 and TMP121 */
+	/* signaling is SPI_MODE_0 */
 	if (spi->mode & (SPI_CPOL | SPI_CPHA))
 		return -EINVAL;
 
-	/* 3-wire link (shared SI/SO) for LM70 */
-	if (chip == LM70_CHIP_LM70 && !(spi->mode & SPI_3WIRE))
-		return -EINVAL;
-
 	/* NOTE:  we assume 8-bit words, and convert to 16 bits manually */
 
-	p_lm70 = kzalloc(sizeof *p_lm70, GFP_KERNEL);
+	p_lm70 = devm_kzalloc(&spi->dev, sizeof(*p_lm70), GFP_KERNEL);
 	if (!p_lm70)
 		return -ENOMEM;
 
@@ -181,7 +175,6 @@ out_dev_create_file_failed:
 	device_remove_file(&spi->dev, &dev_attr_temp1_input);
 out_dev_create_temp_file_failed:
 	spi_set_drvdata(spi, NULL);
-	kfree(p_lm70);
 	return status;
 }
 
@@ -193,7 +186,6 @@ static int __devexit lm70_remove(struct spi_device *spi)
 	device_remove_file(&spi->dev, &dev_attr_temp1_input);
 	device_remove_file(&spi->dev, &dev_attr_name);
 	spi_set_drvdata(spi, NULL);
-	kfree(p_lm70);
 
 	return 0;
 }
@@ -202,6 +194,8 @@ static int __devexit lm70_remove(struct spi_device *spi)
 static const struct spi_device_id lm70_ids[] = {
 	{ "lm70",   LM70_CHIP_LM70 },
 	{ "tmp121", LM70_CHIP_TMP121 },
+	{ "lm71",   LM70_CHIP_LM71 },
+	{ "lm74",   LM70_CHIP_LM74 },
 	{ },
 };
 MODULE_DEVICE_TABLE(spi, lm70_ids);
@@ -219,5 +213,5 @@ static struct spi_driver lm70_driver = {
 module_spi_driver(lm70_driver);
 
 MODULE_AUTHOR("Kaiwan N Billimoria");
-MODULE_DESCRIPTION("NS LM70 / TI TMP121/TMP123 Linux driver");
+MODULE_DESCRIPTION("NS LM70 and compatibles Linux driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c
index bf946187bd3..c3d4255ed15 100644
--- a/drivers/hwmon/lm93.c
+++ b/drivers/hwmon/lm93.c
@@ -1830,7 +1830,7 @@ static ssize_t store_fan_smart_tach(struct device *dev,
 
 	mutex_lock(&data->update_lock);
 	/* sanity test, ignore the write otherwise */
-	if (0 <= val && val <= 2) {
+	if (val <= 2) {
 		/* can't enable if pwm freq is 22.5KHz */
 		if (val) {
 			u8 ctl4 = lm93_read_byte(client,
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
index bd8cdb7b96e..4b68fb2a31d 100644
--- a/drivers/hwmon/lm95241.c
+++ b/drivers/hwmon/lm95241.c
@@ -391,11 +391,10 @@ static int lm95241_probe(struct i2c_client *new_client,
 	struct lm95241_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct lm95241_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&new_client->dev, sizeof(struct lm95241_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(new_client, data);
 	mutex_init(&data->update_lock);
@@ -406,7 +405,7 @@ static int lm95241_probe(struct i2c_client *new_client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&new_client->dev.kobj, &lm95241_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -418,9 +417,6 @@ static int lm95241_probe(struct i2c_client *new_client,
 
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &lm95241_group);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -431,7 +427,6 @@ static int lm95241_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm95241_group);
 
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/lm95245.c b/drivers/hwmon/lm95245.c
index 9a46c106a24..2915fd90836 100644
--- a/drivers/hwmon/lm95245.c
+++ b/drivers/hwmon/lm95245.c
@@ -462,11 +462,10 @@ static int lm95245_probe(struct i2c_client *new_client,
 	struct lm95245_data *data;
 	int err;
 
-	data = kzalloc(sizeof(struct lm95245_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&new_client->dev, sizeof(struct lm95245_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(new_client, data);
 	mutex_init(&data->update_lock);
@@ -477,7 +476,7 @@ static int lm95245_probe(struct i2c_client *new_client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&new_client->dev.kobj, &lm95245_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&new_client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -489,9 +488,6 @@ static int lm95245_probe(struct i2c_client *new_client,
 
 exit_remove_files:
 	sysfs_remove_group(&new_client->dev.kobj, &lm95245_group);
-exit_free:
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -502,7 +498,6 @@ static int lm95245_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &lm95245_group);
 
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/ltc4151.c b/drivers/hwmon/ltc4151.c
index 4d005b219de..8496baa08bc 100644
--- a/drivers/hwmon/ltc4151.c
+++ b/drivers/hwmon/ltc4151.c
@@ -181,11 +181,9 @@ static int ltc4151_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data) {
-		ret = -ENOMEM;
-		goto out_kzalloc;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -193,7 +191,7 @@ static int ltc4151_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	ret = sysfs_create_group(&client->dev.kobj, &ltc4151_group);
 	if (ret)
-		goto out_sysfs_create_group;
+		return ret;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -205,9 +203,6 @@ static int ltc4151_probe(struct i2c_client *client,
 
 out_hwmon_device_register:
 	sysfs_remove_group(&client->dev.kobj, &ltc4151_group);
-out_sysfs_create_group:
-	kfree(data);
-out_kzalloc:
 	return ret;
 }
 
@@ -218,8 +213,6 @@ static int ltc4151_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &ltc4151_group);
 
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/ltc4215.c b/drivers/hwmon/ltc4215.c
index 429c5b2b66f..98b3d04f98b 100644
--- a/drivers/hwmon/ltc4215.c
+++ b/drivers/hwmon/ltc4215.c
@@ -253,11 +253,9 @@ static int ltc4215_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data) {
-		ret = -ENOMEM;
-		goto out_kzalloc;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -268,7 +266,7 @@ static int ltc4215_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	ret = sysfs_create_group(&client->dev.kobj, &ltc4215_group);
 	if (ret)
-		goto out_sysfs_create_group;
+		return ret;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -280,9 +278,6 @@ static int ltc4215_probe(struct i2c_client *client,
 
 out_hwmon_device_register:
 	sysfs_remove_group(&client->dev.kobj, &ltc4215_group);
-out_sysfs_create_group:
-	kfree(data);
-out_kzalloc:
 	return ret;
 }
 
@@ -293,8 +288,6 @@ static int ltc4215_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &ltc4215_group);
 
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwmon/ltc4245.c b/drivers/hwmon/ltc4245.c
index b99b45bafda..52075914eb0 100644
--- a/drivers/hwmon/ltc4245.c
+++ b/drivers/hwmon/ltc4245.c
@@ -519,11 +519,9 @@ static int ltc4245_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data) {
-		ret = -ENOMEM;
-		goto out_kzalloc;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -536,7 +534,7 @@ static int ltc4245_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	ret = ltc4245_sysfs_create_groups(client);
 	if (ret)
-		goto out_sysfs_create_groups;
+		return ret;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -548,9 +546,6 @@ static int ltc4245_probe(struct i2c_client *client,
 
 out_hwmon_device_register:
 	ltc4245_sysfs_remove_groups(client);
-out_sysfs_create_groups:
-	kfree(data);
-out_kzalloc:
 	return ret;
 }
 
@@ -560,7 +555,6 @@ static int ltc4245_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	ltc4245_sysfs_remove_groups(client);
-	kfree(data);
 
 	return 0;
 }
diff --git a/drivers/hwmon/max1111.c b/drivers/hwmon/max1111.c
index f3978a46e84..b4eb0889c46 100644
--- a/drivers/hwmon/max1111.c
+++ b/drivers/hwmon/max1111.c
@@ -22,6 +22,8 @@
 #include <linux/spi/spi.h>
 #include <linux/slab.h>
 
+enum chips { max1110, max1111, max1112, max1113 };
+
 #define MAX1111_TX_BUF_SIZE	1
 #define MAX1111_RX_BUF_SIZE	2
 
@@ -30,6 +32,7 @@
 #define MAX1111_CTRL_PD1      (1u << 1)
 #define MAX1111_CTRL_SGL      (1u << 2)
 #define MAX1111_CTRL_UNI      (1u << 3)
+#define MAX1110_CTRL_SEL_SH   (4)
 #define MAX1111_CTRL_SEL_SH   (5)	/* NOTE: bit 4 is ignored */
 #define MAX1111_CTRL_STR      (1u << 7)
 
@@ -42,6 +45,8 @@ struct max1111_data {
 	uint8_t rx_buf[MAX1111_RX_BUF_SIZE];
 	struct mutex		drvdata_lock;
 	/* protect msg, xfer and buffers from multiple access */
+	int			sel_sh;
+	int			lsb;
 };
 
 static int max1111_read(struct device *dev, int channel)
@@ -53,7 +58,7 @@ static int max1111_read(struct device *dev, int channel)
 	/* writing to drvdata struct is not thread safe, wait on mutex */
 	mutex_lock(&data->drvdata_lock);
 
-	data->tx_buf[0] = (channel << MAX1111_CTRL_SEL_SH) |
+	data->tx_buf[0] = (channel << data->sel_sh) |
 		MAX1111_CTRL_PD0 | MAX1111_CTRL_PD1 |
 		MAX1111_CTRL_SGL | MAX1111_CTRL_UNI | MAX1111_CTRL_STR;
 
@@ -93,12 +98,13 @@ EXPORT_SYMBOL(max1111_read_channel);
 static ssize_t show_name(struct device *dev,
 			 struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "max1111\n");
+	return sprintf(buf, "%s\n", to_spi_device(dev)->modalias);
 }
 
 static ssize_t show_adc(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
+	struct max1111_data *data = dev_get_drvdata(dev);
 	int channel = to_sensor_dev_attr(attr)->index;
 	int ret;
 
@@ -107,10 +113,10 @@ static ssize_t show_adc(struct device *dev,
 		return ret;
 
 	/*
-	 * assume the reference voltage to be 2.048V, with an 8-bit sample,
-	 * the LSB weight is 8mV
+	 * Assume the reference voltage to be 2.048V or 4.096V, with an 8-bit
+	 * sample. The LSB weight is 8mV or 16mV depending on the chip type.
 	 */
-	return sprintf(buf, "%d\n", ret * 8);
+	return sprintf(buf, "%d\n", ret * data->lsb);
 }
 
 #define MAX1111_ADC_ATTR(_id)		\
@@ -121,6 +127,10 @@ static MAX1111_ADC_ATTR(0);
 static MAX1111_ADC_ATTR(1);
 static MAX1111_ADC_ATTR(2);
 static MAX1111_ADC_ATTR(3);
+static MAX1111_ADC_ATTR(4);
+static MAX1111_ADC_ATTR(5);
+static MAX1111_ADC_ATTR(6);
+static MAX1111_ADC_ATTR(7);
 
 static struct attribute *max1111_attributes[] = {
 	&dev_attr_name.attr,
@@ -135,6 +145,18 @@ static const struct attribute_group max1111_attr_group = {
 	.attrs	= max1111_attributes,
 };
 
+static struct attribute *max1110_attributes[] = {
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group max1110_attr_group = {
+	.attrs	= max1110_attributes,
+};
+
 static int __devinit setup_transfer(struct max1111_data *data)
 {
 	struct spi_message *m;
@@ -159,6 +181,7 @@ static int __devinit setup_transfer(struct max1111_data *data)
 
 static int __devinit max1111_probe(struct spi_device *spi)
 {
+	enum chips chip = spi_get_device_id(spi)->driver_data;
 	struct max1111_data *data;
 	int err;
 
@@ -174,6 +197,24 @@ static int __devinit max1111_probe(struct spi_device *spi)
 		return -ENOMEM;
 	}
 
+	switch (chip) {
+	case max1110:
+		data->lsb = 8;
+		data->sel_sh = MAX1110_CTRL_SEL_SH;
+		break;
+	case max1111:
+		data->lsb = 8;
+		data->sel_sh = MAX1111_CTRL_SEL_SH;
+		break;
+	case max1112:
+		data->lsb = 16;
+		data->sel_sh = MAX1110_CTRL_SEL_SH;
+		break;
+	case max1113:
+		data->lsb = 16;
+		data->sel_sh = MAX1111_CTRL_SEL_SH;
+		break;
+	}
 	err = setup_transfer(data);
 	if (err)
 		return err;
@@ -188,6 +229,14 @@ static int __devinit max1111_probe(struct spi_device *spi)
 		dev_err(&spi->dev, "failed to create attribute group\n");
 		return err;
 	}
+	if (chip == max1110 || chip == max1112) {
+		err = sysfs_create_group(&spi->dev.kobj, &max1110_attr_group);
+		if (err) {
+			dev_err(&spi->dev,
+				"failed to create extended attribute group\n");
+			goto err_remove;
+		}
+	}
 
 	data->hwmon_dev = hwmon_device_register(&spi->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -202,6 +251,7 @@ static int __devinit max1111_probe(struct spi_device *spi)
 	return 0;
 
 err_remove:
+	sysfs_remove_group(&spi->dev.kobj, &max1110_attr_group);
 	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
 	return err;
 }
@@ -211,16 +261,27 @@ static int __devexit max1111_remove(struct spi_device *spi)
 	struct max1111_data *data = spi_get_drvdata(spi);
 
 	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&spi->dev.kobj, &max1110_attr_group);
 	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
 	mutex_destroy(&data->drvdata_lock);
 	return 0;
 }
 
+static const struct spi_device_id max1111_ids[] = {
+	{ "max1110", max1110 },
+	{ "max1111", max1111 },
+	{ "max1112", max1112 },
+	{ "max1113", max1113 },
+	{ },
+};
+MODULE_DEVICE_TABLE(spi, max1111_ids);
+
 static struct spi_driver max1111_driver = {
 	.driver		= {
 		.name	= "max1111",
 		.owner	= THIS_MODULE,
 	},
+	.id_table	= max1111_ids,
 	.probe		= max1111_probe,
 	.remove		= __devexit_p(max1111_remove),
 };
@@ -228,6 +289,5 @@ static struct spi_driver max1111_driver = {
 module_spi_driver(max1111_driver);
 
 MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
-MODULE_DESCRIPTION("MAX1111 ADC Driver");
+MODULE_DESCRIPTION("MAX1110/MAX1111/MAX1112/MAX1113 ADC Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("spi:max1111");
diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c
index 335b183d7c0..666d9f6263e 100644
--- a/drivers/hwmon/max1668.c
+++ b/drivers/hwmon/max1668.c
@@ -411,7 +411,8 @@ static int max1668_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
-	data = kzalloc(sizeof(struct max1668_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(struct max1668_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -422,7 +423,7 @@ static int max1668_probe(struct i2c_client *client,
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&client->dev.kobj, &max1668_group_common);
 	if (err)
-		goto error_free;
+		return err;
 
 	if (data->type == max1668 || data->type == max1989) {
 		err = sysfs_create_group(&client->dev.kobj,
@@ -444,8 +445,6 @@ error_sysrem1:
 		sysfs_remove_group(&client->dev.kobj, &max1668_group_unique);
 error_sysrem0:
 	sysfs_remove_group(&client->dev.kobj, &max1668_group_common);
-error_free:
-	kfree(data);
 	return err;
 }
 
@@ -459,7 +458,6 @@ static int max1668_remove(struct i2c_client *client)
 
 	sysfs_remove_group(&client->dev.kobj, &max1668_group_common);
 
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/max197.c b/drivers/hwmon/max197.c
new file mode 100644
index 00000000000..6304f2616fa
--- /dev/null
+++ b/drivers/hwmon/max197.c
@@ -0,0 +1,349 @@
+/*
+ * Maxim MAX197 A/D Converter driver
+ *
+ * Copyright (c) 2012 Savoir-faire Linux Inc.
+ *          Vivien Didelot <vivien.didelot@savoirfairelinux.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * For further information, see the Documentation/hwmon/max197 file.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/max197.h>
+
+#define MAX199_LIMIT	4000		/* 4V */
+#define MAX197_LIMIT	10000		/* 10V */
+
+#define MAX197_NUM_CH	8		/* 8 Analog Input Channels */
+
+/* Control byte format */
+#define MAX197_BIP	(1 << 3)	/* Bipolarity */
+#define MAX197_RNG	(1 << 4)	/* Full range */
+
+#define MAX197_SCALE	12207		/* Scale coefficient for raw data */
+
+/* List of supported chips */
+enum max197_chips { max197, max199 };
+
+/**
+ * struct max197_data - device instance specific data
+ * @pdata:		Platform data.
+ * @hwmon_dev:		The hwmon device.
+ * @lock:		Read/Write mutex.
+ * @limit:		Max range value (10V for MAX197, 4V for MAX199).
+ * @scale:		Need to scale.
+ * @ctrl_bytes:		Channels control byte.
+ */
+struct max197_data {
+	struct max197_platform_data *pdata;
+	struct device *hwmon_dev;
+	struct mutex lock;
+	int limit;
+	bool scale;
+	u8 ctrl_bytes[MAX197_NUM_CH];
+};
+
+static inline void max197_set_unipolarity(struct max197_data *data, int channel)
+{
+	data->ctrl_bytes[channel] &= ~MAX197_BIP;
+}
+
+static inline void max197_set_bipolarity(struct max197_data *data, int channel)
+{
+	data->ctrl_bytes[channel] |= MAX197_BIP;
+}
+
+static inline void max197_set_half_range(struct max197_data *data, int channel)
+{
+	data->ctrl_bytes[channel] &= ~MAX197_RNG;
+}
+
+static inline void max197_set_full_range(struct max197_data *data, int channel)
+{
+	data->ctrl_bytes[channel] |= MAX197_RNG;
+}
+
+static inline bool max197_is_bipolar(struct max197_data *data, int channel)
+{
+	return data->ctrl_bytes[channel] & MAX197_BIP;
+}
+
+static inline bool max197_is_full_range(struct max197_data *data, int channel)
+{
+	return data->ctrl_bytes[channel] & MAX197_RNG;
+}
+
+/* Function called on read access on in{0,1,2,3,4,5,6,7}_{min,max} */
+static ssize_t max197_show_range(struct device *dev,
+				 struct device_attribute *devattr, char *buf)
+{
+	struct max197_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	int channel = attr->index;
+	bool is_min = attr->nr;
+	int range;
+
+	if (mutex_lock_interruptible(&data->lock))
+		return -ERESTARTSYS;
+
+	range = max197_is_full_range(data, channel) ?
+		data->limit : data->limit / 2;
+	if (is_min) {
+		if (max197_is_bipolar(data, channel))
+			range = -range;
+		else
+			range = 0;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return sprintf(buf, "%d\n", range);
+}
+
+/* Function called on write access on in{0,1,2,3,4,5,6,7}_{min,max} */
+static ssize_t max197_store_range(struct device *dev,
+				  struct device_attribute *devattr,
+				  const char *buf, size_t count)
+{
+	struct max197_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	int channel = attr->index;
+	bool is_min = attr->nr;
+	long value;
+	int half = data->limit / 2;
+	int full = data->limit;
+
+	if (kstrtol(buf, 10, &value))
+		return -EINVAL;
+
+	if (is_min) {
+		if (value <= -full)
+			value = -full;
+		else if (value < 0)
+			value = -half;
+		else
+			value = 0;
+	} else {
+		if (value >= full)
+			value = full;
+		else
+			value = half;
+	}
+
+	if (mutex_lock_interruptible(&data->lock))
+		return -ERESTARTSYS;
+
+	if (value == 0) {
+		/* We can deduce only the polarity */
+		max197_set_unipolarity(data, channel);
+	} else if (value == -half) {
+		max197_set_bipolarity(data, channel);
+		max197_set_half_range(data, channel);
+	} else if (value == -full) {
+		max197_set_bipolarity(data, channel);
+		max197_set_full_range(data, channel);
+	} else if (value == half) {
+		/* We can deduce only the range */
+		max197_set_half_range(data, channel);
+	} else if (value == full) {
+		/* We can deduce only the range */
+		max197_set_full_range(data, channel);
+	}
+
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+/* Function called on read access on in{0,1,2,3,4,5,6,7}_input */
+static ssize_t max197_show_input(struct device *dev,
+				 struct device_attribute *devattr,
+				 char *buf)
+{
+	struct max197_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int channel = attr->index;
+	s32 value;
+	int ret;
+
+	if (mutex_lock_interruptible(&data->lock))
+		return -ERESTARTSYS;
+
+	ret = data->pdata->convert(data->ctrl_bytes[channel]);
+	if (ret < 0) {
+		dev_err(dev, "conversion failed\n");
+		goto unlock;
+	}
+	value = ret;
+
+	/*
+	 * Coefficient to apply on raw value.
+	 * See Table 1. Full Scale and Zero Scale in the MAX197 datasheet.
+	 */
+	if (data->scale) {
+		value *= MAX197_SCALE;
+		if (max197_is_full_range(data, channel))
+			value *= 2;
+		value /= 10000;
+	}
+
+	ret = sprintf(buf, "%d\n", value);
+
+unlock:
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
+static ssize_t max197_show_name(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	return sprintf(buf, "%s\n", pdev->name);
+}
+
+#define MAX197_SENSOR_DEVICE_ATTR_CH(chan)				\
+	static SENSOR_DEVICE_ATTR(in##chan##_input, S_IRUGO,		\
+				  max197_show_input, NULL, chan);	\
+	static SENSOR_DEVICE_ATTR_2(in##chan##_min, S_IRUGO | S_IWUSR,	\
+				    max197_show_range,			\
+				    max197_store_range,			\
+				    true, chan);			\
+	static SENSOR_DEVICE_ATTR_2(in##chan##_max, S_IRUGO | S_IWUSR,	\
+				    max197_show_range,			\
+				    max197_store_range,			\
+				    false, chan)
+
+#define MAX197_SENSOR_DEV_ATTR_IN(chan)					\
+	&sensor_dev_attr_in##chan##_input.dev_attr.attr,		\
+	&sensor_dev_attr_in##chan##_max.dev_attr.attr,			\
+	&sensor_dev_attr_in##chan##_min.dev_attr.attr
+
+static DEVICE_ATTR(name, S_IRUGO, max197_show_name, NULL);
+
+MAX197_SENSOR_DEVICE_ATTR_CH(0);
+MAX197_SENSOR_DEVICE_ATTR_CH(1);
+MAX197_SENSOR_DEVICE_ATTR_CH(2);
+MAX197_SENSOR_DEVICE_ATTR_CH(3);
+MAX197_SENSOR_DEVICE_ATTR_CH(4);
+MAX197_SENSOR_DEVICE_ATTR_CH(5);
+MAX197_SENSOR_DEVICE_ATTR_CH(6);
+MAX197_SENSOR_DEVICE_ATTR_CH(7);
+
+static const struct attribute_group max197_sysfs_group = {
+	.attrs = (struct attribute *[]) {
+		&dev_attr_name.attr,
+		MAX197_SENSOR_DEV_ATTR_IN(0),
+		MAX197_SENSOR_DEV_ATTR_IN(1),
+		MAX197_SENSOR_DEV_ATTR_IN(2),
+		MAX197_SENSOR_DEV_ATTR_IN(3),
+		MAX197_SENSOR_DEV_ATTR_IN(4),
+		MAX197_SENSOR_DEV_ATTR_IN(5),
+		MAX197_SENSOR_DEV_ATTR_IN(6),
+		MAX197_SENSOR_DEV_ATTR_IN(7),
+		NULL
+	},
+};
+
+static int __devinit max197_probe(struct platform_device *pdev)
+{
+	int ch, ret;
+	struct max197_data *data;
+	struct max197_platform_data *pdata = pdev->dev.platform_data;
+	enum max197_chips chip = platform_get_device_id(pdev)->driver_data;
+
+	if (pdata == NULL) {
+		dev_err(&pdev->dev, "no platform data supplied\n");
+		return -EINVAL;
+	}
+
+	if (pdata->convert == NULL) {
+		dev_err(&pdev->dev, "no convert function supplied\n");
+		return -EINVAL;
+	}
+
+	data = devm_kzalloc(&pdev->dev, sizeof(struct max197_data), GFP_KERNEL);
+	if (!data) {
+		dev_err(&pdev->dev, "devm_kzalloc failed\n");
+		return -ENOMEM;
+	}
+
+	data->pdata = pdata;
+	mutex_init(&data->lock);
+
+	if (chip == max197) {
+		data->limit = MAX197_LIMIT;
+		data->scale = true;
+	} else {
+		data->limit = MAX199_LIMIT;
+		data->scale = false;
+	}
+
+	for (ch = 0; ch < MAX197_NUM_CH; ch++)
+		data->ctrl_bytes[ch] = (u8) ch;
+
+	platform_set_drvdata(pdev, data);
+
+	ret = sysfs_create_group(&pdev->dev.kobj, &max197_sysfs_group);
+	if (ret) {
+		dev_err(&pdev->dev, "sysfs create group failed\n");
+		return ret;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		ret = PTR_ERR(data->hwmon_dev);
+		dev_err(&pdev->dev, "hwmon device register failed\n");
+		goto error;
+	}
+
+	return 0;
+
+error:
+	sysfs_remove_group(&pdev->dev.kobj, &max197_sysfs_group);
+	return ret;
+}
+
+static int __devexit max197_remove(struct platform_device *pdev)
+{
+	struct max197_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &max197_sysfs_group);
+
+	return 0;
+}
+
+static struct platform_device_id max197_device_ids[] = {
+	{ "max197", max197 },
+	{ "max199", max199 },
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, max197_device_ids);
+
+static struct platform_driver max197_driver = {
+	.driver = {
+		.name = "max197",
+		.owner = THIS_MODULE,
+	},
+	.probe = max197_probe,
+	.remove = __devexit_p(max197_remove),
+	.id_table = max197_device_ids,
+};
+module_platform_driver(max197_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Savoir-faire Linux Inc. <kernel@savoirfairelinux.com>");
+MODULE_DESCRIPTION("Maxim MAX197 A/D Converter driver");
diff --git a/drivers/hwmon/mcp3021.c b/drivers/hwmon/mcp3021.c
index d0afc0cd3ff..eedb32292d6 100644
--- a/drivers/hwmon/mcp3021.c
+++ b/drivers/hwmon/mcp3021.c
@@ -1,8 +1,9 @@
 /*
- * mcp3021.c - driver for the Microchip MCP3021 chip
+ * mcp3021.c - driver for Microchip MCP3021 and MCP3221
  *
  * Copyright (C) 2008-2009, 2012 Freescale Semiconductor, Inc.
  * Author: Mingkai Hu <Mingkai.hu@freescale.com>
+ * Reworked by Sven Schuchmann <schuchmann@schleissheimer.de>
  *
  * This driver export the value of analog input voltage to sysfs, the
  * voltage unit is mV. Through the sysfs interface, lm-sensors tool
@@ -34,16 +35,31 @@
 #define MCP3021_OUTPUT_RES	10	/* 10-bit resolution */
 #define MCP3021_OUTPUT_SCALE	4
 
+#define MCP3221_SAR_SHIFT	0
+#define MCP3221_SAR_MASK	0xfff
+#define MCP3221_OUTPUT_RES	12	/* 12-bit resolution */
+#define MCP3221_OUTPUT_SCALE	1
+
+enum chips {
+	mcp3021,
+	mcp3221
+};
+
 /*
  * Client data (each client gets its own)
  */
 struct mcp3021_data {
 	struct device *hwmon_dev;
 	u32 vdd;	/* device power supply */
+	u16 sar_shift;
+	u16 sar_mask;
+	u8 output_res;
+	u8 output_scale;
 };
 
 static int mcp3021_read16(struct i2c_client *client)
 {
+	struct mcp3021_data *data = i2c_get_clientdata(client);
 	int ret;
 	u16 reg;
 	__be16 buf;
@@ -61,20 +77,20 @@ static int mcp3021_read16(struct i2c_client *client)
 	 * The ten-bit output code is composed of the lower 4-bit of the
 	 * first byte and the upper 6-bit of the second byte.
 	 */
-	reg = (reg >> MCP3021_SAR_SHIFT) & MCP3021_SAR_MASK;
+	reg = (reg >> data->sar_shift) & data->sar_mask;
 
 	return reg;
 }
 
-static inline u16 volts_from_reg(u16 vdd, u16 val)
+static inline u16 volts_from_reg(struct mcp3021_data *data, u16 val)
 {
 	if (val == 0)
 		return 0;
 
-	val = val * MCP3021_OUTPUT_SCALE - MCP3021_OUTPUT_SCALE / 2;
+	val = val * data->output_scale - data->output_scale / 2;
 
-	return val * DIV_ROUND_CLOSEST(vdd,
-			(1 << MCP3021_OUTPUT_RES) * MCP3021_OUTPUT_SCALE);
+	return val * DIV_ROUND_CLOSEST(data->vdd,
+			(1 << data->output_res) * data->output_scale);
 }
 
 static ssize_t show_in_input(struct device *dev, struct device_attribute *attr,
@@ -88,7 +104,8 @@ static ssize_t show_in_input(struct device *dev, struct device_attribute *attr,
 	if (reg < 0)
 		return reg;
 
-	in_input = volts_from_reg(data->vdd, reg);
+	in_input = volts_from_reg(data, reg);
+
 	return sprintf(buf, "%d\n", in_input);
 }
 
@@ -103,25 +120,39 @@ static int mcp3021_probe(struct i2c_client *client,
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
 		return -ENODEV;
 
-	data = kzalloc(sizeof(struct mcp3021_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(struct mcp3021_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 
+	switch (id->driver_data) {
+	case mcp3021:
+		data->sar_shift = MCP3021_SAR_SHIFT;
+		data->sar_mask = MCP3021_SAR_MASK;
+		data->output_res = MCP3021_OUTPUT_RES;
+		data->output_scale = MCP3021_OUTPUT_SCALE;
+		break;
+
+	case mcp3221:
+		data->sar_shift = MCP3221_SAR_SHIFT;
+		data->sar_mask = MCP3221_SAR_MASK;
+		data->output_res = MCP3221_OUTPUT_RES;
+		data->output_scale = MCP3221_OUTPUT_SCALE;
+		break;
+	}
+
 	if (client->dev.platform_data) {
 		data->vdd = *(u32 *)client->dev.platform_data;
-		if (data->vdd > MCP3021_VDD_MAX ||
-				data->vdd < MCP3021_VDD_MIN) {
-			err = -EINVAL;
-			goto exit_free;
-		}
+		if (data->vdd > MCP3021_VDD_MAX || data->vdd < MCP3021_VDD_MIN)
+			return -EINVAL;
 	} else
 		data->vdd = MCP3021_VDD_REF;
 
 	err = sysfs_create_file(&client->dev.kobj, &dev_attr_in0_input.attr);
 	if (err)
-		goto exit_free;
+		return err;
 
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
@@ -133,8 +164,6 @@ static int mcp3021_probe(struct i2c_client *client,
 
 exit_remove:
 	sysfs_remove_file(&client->dev.kobj, &dev_attr_in0_input.attr);
-exit_free:
-	kfree(data);
 	return err;
 }
 
@@ -144,13 +173,13 @@ static int mcp3021_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_file(&client->dev.kobj, &dev_attr_in0_input.attr);
-	kfree(data);
 
 	return 0;
 }
 
 static const struct i2c_device_id mcp3021_id[] = {
-	{ "mcp3021", 0 },
+	{ "mcp3021", mcp3021 },
+	{ "mcp3221", mcp3221 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, mcp3021_id);
@@ -167,5 +196,5 @@ static struct i2c_driver mcp3021_driver = {
 module_i2c_driver(mcp3021_driver);
 
 MODULE_AUTHOR("Mingkai Hu <Mingkai.hu@freescale.com>");
-MODULE_DESCRIPTION("Microchip MCP3021 driver");
+MODULE_DESCRIPTION("Microchip MCP3021/MCP3221 driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/s3c-hwmon.c b/drivers/hwmon/s3c-hwmon.c
index b7975f858cf..fe11b95670b 100644
--- a/drivers/hwmon/s3c-hwmon.c
+++ b/drivers/hwmon/s3c-hwmon.c
@@ -34,7 +34,7 @@
 #include <linux/hwmon-sysfs.h>
 
 #include <plat/adc.h>
-#include <plat/hwmon.h>
+#include <linux/platform_data/hwmon-s3c.h>
 
 struct s3c_hwmon_attr {
 	struct sensor_device_attribute	in;
diff --git a/drivers/hwmon/sch5627.c b/drivers/hwmon/sch5627.c
index 8342275378b..49f6230bdcf 100644
--- a/drivers/hwmon/sch5627.c
+++ b/drivers/hwmon/sch5627.c
@@ -461,8 +461,6 @@ static int sch5627_remove(struct platform_device *pdev)
 		hwmon_device_unregister(data->hwmon_dev);
 
 	sysfs_remove_group(&pdev->dev.kobj, &sch5627_group);
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
 
 	return 0;
 }
@@ -472,7 +470,8 @@ static int __devinit sch5627_probe(struct platform_device *pdev)
 	struct sch5627_data *data;
 	int err, build_code, build_id, hwmon_rev, val;
 
-	data = kzalloc(sizeof(struct sch5627_data), GFP_KERNEL);
+	data = devm_kzalloc(&pdev->dev, sizeof(struct sch5627_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c
index 96a7e68718c..51711801619 100644
--- a/drivers/hwmon/sch5636.c
+++ b/drivers/hwmon/sch5636.c
@@ -402,9 +402,6 @@ static int sch5636_remove(struct platform_device *pdev)
 		device_remove_file(&pdev->dev,
 				   &sch5636_fan_attr[i].dev_attr);
 
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
-
 	return 0;
 }
 
@@ -414,7 +411,8 @@ static int __devinit sch5636_probe(struct platform_device *pdev)
 	int i, err, val, revision[2];
 	char id[4];
 
-	data = kzalloc(sizeof(struct sch5636_data), GFP_KERNEL);
+	data = devm_kzalloc(&pdev->dev, sizeof(struct sch5636_data),
+			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c
index 4380f5d07be..d00b30adc34 100644
--- a/drivers/hwmon/sch56xx-common.c
+++ b/drivers/hwmon/sch56xx-common.c
@@ -503,10 +503,10 @@ EXPORT_SYMBOL(sch56xx_watchdog_unregister);
  * platform dev find, add and remove functions
  */
 
-static int __init sch56xx_find(int sioaddr, unsigned short *address,
-			       const char **name)
+static int __init sch56xx_find(int sioaddr, const char **name)
 {
 	u8 devid;
+	unsigned short address;
 	int err;
 
 	err = superio_enter(sioaddr);
@@ -540,20 +540,21 @@ static int __init sch56xx_find(int sioaddr, unsigned short *address,
 	 * Warning the order of the low / high byte is the other way around
 	 * as on most other superio devices!!
 	 */
-	*address = superio_inb(sioaddr, SIO_REG_ADDR) |
+	address = superio_inb(sioaddr, SIO_REG_ADDR) |
 		   superio_inb(sioaddr, SIO_REG_ADDR + 1) << 8;
-	if (*address == 0) {
+	if (address == 0) {
 		pr_warn("Base address not set\n");
 		err = -ENODEV;
 		goto exit;
 	}
+	err = address;
 
 exit:
 	superio_exit(sioaddr);
 	return err;
 }
 
-static int __init sch56xx_device_add(unsigned short address, const char *name)
+static int __init sch56xx_device_add(int address, const char *name)
 {
 	struct resource res = {
 		.start	= address,
@@ -593,15 +594,14 @@ exit_device_put:
 
 static int __init sch56xx_init(void)
 {
-	int err;
-	unsigned short address;
-	const char *name;
-
-	err = sch56xx_find(0x4e, &address, &name);
-	if (err)
-		err = sch56xx_find(0x2e, &address, &name);
-	if (err)
-		return err;
+	int address;
+	const char *name = NULL;
+
+	address = sch56xx_find(0x4e, &name);
+	if (address < 0)
+		address = sch56xx_find(0x2e, &name);
+	if (address < 0)
+		return address;
 
 	return sch56xx_device_add(address, name);
 }
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 8b011d01662..07a0c1a0b84 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -1,7 +1,7 @@
 /*
  * sht15.c - support for the SHT15 Temperature and Humidity Sensor
  *
- * Portions Copyright (c) 2010-2011 Savoir-faire Linux Inc.
+ * Portions Copyright (c) 2010-2012 Savoir-faire Linux Inc.
  *          Jerome Oufella <jerome.oufella@savoirfairelinux.com>
  *          Vivien Didelot <vivien.didelot@savoirfairelinux.com>
  *
@@ -24,12 +24,12 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/mutex.h>
+#include <linux/platform_data/sht15.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/jiffies.h>
 #include <linux/err.h>
-#include <linux/sht15.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/atomic.h>
@@ -53,6 +53,9 @@
 #define SHT15_STATUS_HEATER		0x04
 #define SHT15_STATUS_LOW_BATTERY	0x40
 
+/* List of supported chips */
+enum sht15_chips { sht10, sht11, sht15, sht71, sht75 };
+
 /* Actions the driver may be doing */
 enum sht15_state {
 	SHT15_READING_NOTHING,
@@ -884,14 +887,12 @@ static int sht15_invalidate_voltage(struct notifier_block *nb,
 static int __devinit sht15_probe(struct platform_device *pdev)
 {
 	int ret;
-	struct sht15_data *data = kzalloc(sizeof(*data), GFP_KERNEL);
+	struct sht15_data *data;
 	u8 status = 0;
 
-	if (!data) {
-		ret = -ENOMEM;
-		dev_err(&pdev->dev, "kzalloc failed\n");
-		goto error_ret;
-	}
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	INIT_WORK(&data->read_work, sht15_bh_read_data);
 	INIT_WORK(&data->update_supply_work, sht15_update_voltage);
@@ -901,9 +902,8 @@ static int __devinit sht15_probe(struct platform_device *pdev)
 	init_waitqueue_head(&data->wait_queue);
 
 	if (pdev->dev.platform_data == NULL) {
-		ret = -EINVAL;
 		dev_err(&pdev->dev, "no platform data supplied\n");
-		goto err_free_data;
+		return -EINVAL;
 	}
 	data->pdata = pdev->dev.platform_data;
 	data->supply_uV = data->pdata->supply_mv * 1000;
@@ -918,7 +918,7 @@ static int __devinit sht15_probe(struct platform_device *pdev)
 	 * If a regulator is available,
 	 * query what the supply voltage actually is!
 	 */
-	data->reg = regulator_get(data->dev, "vcc");
+	data->reg = devm_regulator_get(data->dev, "vcc");
 	if (!IS_ERR(data->reg)) {
 		int voltage;
 
@@ -937,51 +937,51 @@ static int __devinit sht15_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"regulator notifier request failed\n");
 			regulator_disable(data->reg);
-			regulator_put(data->reg);
-			goto err_free_data;
+			return ret;
 		}
 	}
 
 	/* Try requesting the GPIOs */
-	ret = gpio_request(data->pdata->gpio_sck, "SHT15 sck");
+	ret = devm_gpio_request(&pdev->dev, data->pdata->gpio_sck, "SHT15 sck");
 	if (ret) {
 		dev_err(&pdev->dev, "gpio request failed\n");
 		goto err_release_reg;
 	}
 	gpio_direction_output(data->pdata->gpio_sck, 0);
 
-	ret = gpio_request(data->pdata->gpio_data, "SHT15 data");
+	ret = devm_gpio_request(&pdev->dev, data->pdata->gpio_data,
+				"SHT15 data");
 	if (ret) {
 		dev_err(&pdev->dev, "gpio request failed\n");
-		goto err_release_gpio_sck;
+		goto err_release_reg;
 	}
 
-	ret = request_irq(gpio_to_irq(data->pdata->gpio_data),
-			  sht15_interrupt_fired,
-			  IRQF_TRIGGER_FALLING,
-			  "sht15 data",
-			  data);
+	ret = devm_request_irq(&pdev->dev, gpio_to_irq(data->pdata->gpio_data),
+			       sht15_interrupt_fired,
+			       IRQF_TRIGGER_FALLING,
+			       "sht15 data",
+			       data);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to get irq for data line\n");
-		goto err_release_gpio_data;
+		goto err_release_reg;
 	}
 	disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
 	sht15_connection_reset(data);
 	ret = sht15_soft_reset(data);
 	if (ret)
-		goto err_release_irq;
+		goto err_release_reg;
 
 	/* write status with platform data options */
 	if (status) {
 		ret = sht15_send_status(data, status);
 		if (ret)
-			goto err_release_irq;
+			goto err_release_reg;
 	}
 
 	ret = sysfs_create_group(&pdev->dev.kobj, &sht15_attr_group);
 	if (ret) {
 		dev_err(&pdev->dev, "sysfs create failed\n");
-		goto err_release_irq;
+		goto err_release_reg;
 	}
 
 	data->hwmon_dev = hwmon_device_register(data->dev);
@@ -994,21 +994,11 @@ static int __devinit sht15_probe(struct platform_device *pdev)
 
 err_release_sysfs_group:
 	sysfs_remove_group(&pdev->dev.kobj, &sht15_attr_group);
-err_release_irq:
-	free_irq(gpio_to_irq(data->pdata->gpio_data), data);
-err_release_gpio_data:
-	gpio_free(data->pdata->gpio_data);
-err_release_gpio_sck:
-	gpio_free(data->pdata->gpio_sck);
 err_release_reg:
 	if (!IS_ERR(data->reg)) {
 		regulator_unregister_notifier(data->reg, &data->nb);
 		regulator_disable(data->reg);
-		regulator_put(data->reg);
 	}
-err_free_data:
-	kfree(data);
-error_ret:
 	return ret;
 }
 
@@ -1030,89 +1020,33 @@ static int __devexit sht15_remove(struct platform_device *pdev)
 	if (!IS_ERR(data->reg)) {
 		regulator_unregister_notifier(data->reg, &data->nb);
 		regulator_disable(data->reg);
-		regulator_put(data->reg);
 	}
 
-	free_irq(gpio_to_irq(data->pdata->gpio_data), data);
-	gpio_free(data->pdata->gpio_data);
-	gpio_free(data->pdata->gpio_sck);
 	mutex_unlock(&data->read_lock);
-	kfree(data);
 
 	return 0;
 }
 
-/*
- * sht_drivers simultaneously refers to __devinit and __devexit function
- * which causes spurious section mismatch warning. So use __refdata to
- * get rid from this.
- */
-static struct platform_driver __refdata sht_drivers[] = {
-	{
-		.driver = {
-			.name = "sht10",
-			.owner = THIS_MODULE,
-		},
-		.probe = sht15_probe,
-		.remove = __devexit_p(sht15_remove),
-	}, {
-		.driver = {
-			.name = "sht11",
-			.owner = THIS_MODULE,
-		},
-		.probe = sht15_probe,
-		.remove = __devexit_p(sht15_remove),
-	}, {
-		.driver = {
-			.name = "sht15",
-			.owner = THIS_MODULE,
-		},
-		.probe = sht15_probe,
-		.remove = __devexit_p(sht15_remove),
-	}, {
-		.driver = {
-			.name = "sht71",
-			.owner = THIS_MODULE,
-		},
-		.probe = sht15_probe,
-		.remove = __devexit_p(sht15_remove),
-	}, {
-		.driver = {
-			.name = "sht75",
-			.owner = THIS_MODULE,
-		},
-		.probe = sht15_probe,
-		.remove = __devexit_p(sht15_remove),
-	},
+static struct platform_device_id sht15_device_ids[] = {
+	{ "sht10", sht10 },
+	{ "sht11", sht11 },
+	{ "sht15", sht15 },
+	{ "sht71", sht71 },
+	{ "sht75", sht75 },
+	{ }
 };
+MODULE_DEVICE_TABLE(platform, sht15_device_ids);
 
-static int __init sht15_init(void)
-{
-	int ret;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(sht_drivers); i++) {
-		ret = platform_driver_register(&sht_drivers[i]);
-		if (ret)
-			goto error_unreg;
-	}
-
-	return 0;
-
-error_unreg:
-	while (--i >= 0)
-		platform_driver_unregister(&sht_drivers[i]);
-
-	return ret;
-}
-module_init(sht15_init);
-
-static void __exit sht15_exit(void)
-{
-	int i;
-	for (i = ARRAY_SIZE(sht_drivers) - 1; i >= 0; i--)
-		platform_driver_unregister(&sht_drivers[i]);
-}
-module_exit(sht15_exit);
+static struct platform_driver sht15_driver = {
+	.driver = {
+		.name = "sht15",
+		.owner = THIS_MODULE,
+	},
+	.probe = sht15_probe,
+	.remove = __devexit_p(sht15_remove),
+	.id_table = sht15_device_ids,
+};
+module_platform_driver(sht15_driver);
 
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Sensirion SHT15 temperature and humidity sensor driver");
diff --git a/drivers/hwmon/sht21.c b/drivers/hwmon/sht21.c
index 6c2dede4b8e..c2565d04cd4 100644
--- a/drivers/hwmon/sht21.c
+++ b/drivers/hwmon/sht21.c
@@ -199,11 +199,10 @@ static int __devinit sht21_probe(struct i2c_client *client,
 		return -ENODEV;
 	}
 
-	sht21 = kzalloc(sizeof(*sht21), GFP_KERNEL);
-	if (!sht21) {
-		dev_dbg(&client->dev, "kzalloc failed\n");
+	sht21 = devm_kzalloc(&client->dev, sizeof(*sht21), GFP_KERNEL);
+	if (!sht21)
 		return -ENOMEM;
-	}
+
 	i2c_set_clientdata(client, sht21);
 
 	mutex_init(&sht21->lock);
@@ -211,7 +210,7 @@ static int __devinit sht21_probe(struct i2c_client *client,
 	err = sysfs_create_group(&client->dev.kobj, &sht21_attr_group);
 	if (err) {
 		dev_dbg(&client->dev, "could not create sysfs files\n");
-		goto fail_free;
+		return err;
 	}
 	sht21->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(sht21->hwmon_dev)) {
@@ -226,9 +225,6 @@ static int __devinit sht21_probe(struct i2c_client *client,
 
 fail_remove_sysfs:
 	sysfs_remove_group(&client->dev.kobj, &sht21_attr_group);
-fail_free:
-	kfree(sht21);
-
 	return err;
 }
 
@@ -242,7 +238,6 @@ static int __devexit sht21_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(sht21->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &sht21_attr_group);
-	kfree(sht21);
 
 	return 0;
 }
diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c
index 0018c7dd009..1a174f0a3cd 100644
--- a/drivers/hwmon/twl4030-madc-hwmon.c
+++ b/drivers/hwmon/twl4030-madc-hwmon.c
@@ -44,12 +44,13 @@ static ssize_t madc_read(struct device *dev,
 			 struct device_attribute *devattr, char *buf)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-	struct twl4030_madc_request req;
+	struct twl4030_madc_request req = {
+		.channels = 1 << attr->index,
+		.method = TWL4030_MADC_SW2,
+		.type = TWL4030_MADC_WAIT,
+	};
 	long val;
 
-	req.channels = (1 << attr->index);
-	req.method = TWL4030_MADC_SW2;
-	req.func_cb = NULL;
 	val = twl4030_madc_conversion(&req);
 	if (val < 0)
 		return val;
diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
index ee4ebc198a9..4cddee04f2e 100644
--- a/drivers/hwmon/via-cputemp.c
+++ b/drivers/hwmon/via-cputemp.c
@@ -128,12 +128,10 @@ static int __devinit via_cputemp_probe(struct platform_device *pdev)
 	int err;
 	u32 eax, edx;
 
-	data = kzalloc(sizeof(struct via_cputemp_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		dev_err(&pdev->dev, "Out of memory\n");
-		goto exit;
-	}
+	data = devm_kzalloc(&pdev->dev, sizeof(struct via_cputemp_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	data->id = pdev->id;
 	data->name = "via_cputemp";
@@ -151,8 +149,7 @@ static int __devinit via_cputemp_probe(struct platform_device *pdev)
 		data->msr_temp = 0x1423;
 		break;
 	default:
-		err = -ENODEV;
-		goto exit_free;
+		return -ENODEV;
 	}
 
 	/* test if we can access the TEMPERATURE MSR */
@@ -160,14 +157,14 @@ static int __devinit via_cputemp_probe(struct platform_device *pdev)
 	if (err) {
 		dev_err(&pdev->dev,
 			"Unable to access TEMPERATURE MSR, giving up\n");
-		goto exit_free;
+		return err;
 	}
 
 	platform_set_drvdata(pdev, data);
 
 	err = sysfs_create_group(&pdev->dev.kobj, &via_cputemp_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	if (data->msr_vid)
 		data->vrm = vid_which_vrm();
@@ -192,10 +189,6 @@ exit_remove:
 	if (data->vrm)
 		device_remove_file(&pdev->dev, &dev_attr_cpu0_vid);
 	sysfs_remove_group(&pdev->dev.kobj, &via_cputemp_group);
-exit_free:
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -207,8 +200,6 @@ static int __devexit via_cputemp_remove(struct platform_device *pdev)
 	if (data->vrm)
 		device_remove_file(&pdev->dev, &dev_attr_cpu0_vid);
 	sysfs_remove_group(&pdev->dev.kobj, &via_cputemp_group);
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
 	return 0;
 }
 
@@ -328,6 +319,7 @@ static int __init via_cputemp_init(void)
 	if (err)
 		goto exit;
 
+	get_online_cpus();
 	for_each_online_cpu(i) {
 		struct cpuinfo_x86 *c = &cpu_data(i);
 
@@ -347,12 +339,14 @@ static int __init via_cputemp_init(void)
 
 #ifndef CONFIG_HOTPLUG_CPU
 	if (list_empty(&pdev_list)) {
+		put_online_cpus();
 		err = -ENODEV;
 		goto exit_driver_unreg;
 	}
 #endif
 
 	register_hotcpu_notifier(&via_cputemp_cpu_notifier);
+	put_online_cpus();
 	return 0;
 
 #ifndef CONFIG_HOTPLUG_CPU
@@ -367,6 +361,7 @@ static void __exit via_cputemp_exit(void)
 {
 	struct pdev_entry *p, *n;
 
+	get_online_cpus();
 	unregister_hotcpu_notifier(&via_cputemp_cpu_notifier);
 	mutex_lock(&pdev_list_mutex);
 	list_for_each_entry_safe(p, n, &pdev_list, list) {
@@ -375,6 +370,7 @@ static void __exit via_cputemp_exit(void)
 		kfree(p);
 	}
 	mutex_unlock(&pdev_list_mutex);
+	put_online_cpus();
 	platform_driver_unregister(&via_cputemp_driver);
 }
 
diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c
index 386a8453801..84e3dc5e3a8 100644
--- a/drivers/hwmon/vt8231.c
+++ b/drivers/hwmon/vt8231.c
@@ -789,18 +789,16 @@ static int vt8231_probe(struct platform_device *pdev)
 
 	/* Reserve the ISA region */
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
-	if (!request_region(res->start, VT8231_EXTENT,
-			    vt8231_driver.driver.name)) {
+	if (!devm_request_region(&pdev->dev, res->start, VT8231_EXTENT,
+				 vt8231_driver.driver.name)) {
 		dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n",
 			(unsigned long)res->start, (unsigned long)res->end);
 		return -ENODEV;
 	}
 
-	data = kzalloc(sizeof(struct vt8231_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit_release;
-	}
+	data = devm_kzalloc(&pdev->dev, sizeof(struct vt8231_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	platform_set_drvdata(pdev, data);
 	data->addr = res->start;
@@ -812,7 +810,7 @@ static int vt8231_probe(struct platform_device *pdev)
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&pdev->dev.kobj, &vt8231_group);
 	if (err)
-		goto exit_free;
+		return err;
 
 	/* Must update device information to find out the config field */
 	data->uch_config = vt8231_read_value(data, VT8231_REG_UCH_CONFIG);
@@ -850,13 +848,6 @@ exit_remove_files:
 		sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]);
 
 	sysfs_remove_group(&pdev->dev.kobj, &vt8231_group);
-
-exit_free:
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
-
-exit_release:
-	release_region(res->start, VT8231_EXTENT);
 	return err;
 }
 
@@ -875,9 +866,6 @@ static int __devexit vt8231_remove(struct platform_device *pdev)
 
 	sysfs_remove_group(&pdev->dev.kobj, &vt8231_group);
 
-	release_region(data->addr, VT8231_EXTENT);
-	platform_set_drvdata(pdev, NULL);
-	kfree(data);
 	return 0;
 }
 
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index ab4825205a9..5b1a6a66644 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -1206,7 +1206,7 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr,
 	int err = -ENODEV;
 	u16 val;
 
-	static const __initdata char *names[] = {
+	static __initconst char *const names[] = {
 		"W83627HF",
 		"W83627THF",
 		"W83697HF",
diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
index 9ade4d4e218..93ea81a4bf3 100644
--- a/drivers/hwmon/w83791d.c
+++ b/drivers/hwmon/w83791d.c
@@ -259,8 +259,7 @@ static u8 fan_to_reg(long rpm, int div)
 					((val) + 500) / 1000)
 
 /* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */
-#define TOL_TEMP_TO_REG(val)		((val) < 0 ? 0 : \
-					(val) >= 15000 ? 15 : \
+#define TOL_TEMP_TO_REG(val)		((val) >= 15000 ? 15 : \
 					((val) + 500) / 1000)
 
 #define BEEP_MASK_TO_REG(val)		((val) & 0xffffff)
@@ -848,10 +847,10 @@ static ssize_t store_temp_target(struct device *dev,
 	struct i2c_client *client = to_i2c_client(dev);
 	struct w83791d_data *data = i2c_get_clientdata(client);
 	int nr = sensor_attr->index;
-	unsigned long val;
+	long val;
 	u8 target_mask;
 
-	if (kstrtoul(buf, 10, &val))
+	if (kstrtol(buf, 10, &val))
 		return -EINVAL;
 
 	mutex_lock(&data->update_lock);
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index 0ba5a2bd562..06d6f56d4f6 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -296,7 +296,6 @@ struct w83792d_data {
 	u8 pwmenable[3];
 	u32 alarms;		/* realtime status register encoding,combined */
 	u8 chassis;		/* Chassis status */
-	u8 chassis_clear;	/* CLR_CHS, clear chassis intrusion detection */
 	u8 thermal_cruise[3];	/* Smart FanI: Fan1,2,3 target value */
 	u8 tolerance[3];	/* Fan1,2,3 tolerance(Smart Fan I/II) */
 	u8 sf2_points[3][4];	/* Smart FanII: Fan1,2,3 temperature points */
@@ -739,7 +738,7 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
-show_chassis(struct device *dev, struct device_attribute *attr,
+show_chassis_clear(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
 	struct w83792d_data *data = w83792d_update_device(dev);
@@ -747,52 +746,6 @@ show_chassis(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
-show_regs_chassis(struct device *dev, struct device_attribute *attr,
-			char *buf)
-{
-	dev_warn(dev,
-		 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
-		 "chassis");
-	return show_chassis(dev, attr, buf);
-}
-
-static ssize_t
-show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct w83792d_data *data = w83792d_update_device(dev);
-	return sprintf(buf, "%d\n", data->chassis_clear);
-}
-
-static ssize_t
-store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83792d_data *data = i2c_get_clientdata(client);
-	unsigned long val;
-	int err;
-	u8 temp1 = 0, temp2 = 0;
-
-	dev_warn(dev,
-		 "Attribute %s is deprecated, use intrusion0_alarm instead\n",
-		 "chassis_clear");
-
-	err = kstrtoul(buf, 10, &val);
-	if (err)
-		return err;
-
-	mutex_lock(&data->update_lock);
-	data->chassis_clear = SENSORS_LIMIT(val, 0, 1);
-	temp1 = ((data->chassis_clear) << 7) & 0x80;
-	temp2 = w83792d_read_value(client,
-		W83792D_REG_CHASSIS_CLR) & 0x7f;
-	w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
-	mutex_unlock(&data->update_lock);
-
-	return count;
-}
-
-static ssize_t
 store_chassis_clear(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
@@ -1116,11 +1069,8 @@ static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
-static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
-static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
-			show_chassis_clear, store_chassis_clear_legacy);
 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
-			show_chassis, store_chassis_clear);
+			show_chassis_clear, store_chassis_clear);
 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
@@ -1320,8 +1270,6 @@ static struct attribute *w83792d_attributes[] = {
 	&sensor_dev_attr_pwm3_mode.dev_attr.attr,
 	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
 	&dev_attr_alarms.attr,
-	&dev_attr_chassis.attr,
-	&dev_attr_chassis_clear.attr,
 	&dev_attr_intrusion0_alarm.attr,
 	&sensor_dev_attr_tolerance1.dev_attr.attr,
 	&sensor_dev_attr_thermal_cruise1.dev_attr.attr,
@@ -1627,8 +1575,6 @@ static struct w83792d_data *w83792d_update_device(struct device *dev)
 		/* Update CaseOpen status and it's CLR_CHS. */
 		data->chassis = (w83792d_read_value(client,
 			W83792D_REG_CHASSIS) >> 5) & 0x01;
-		data->chassis_clear = (w83792d_read_value(client,
-			W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
 
 		/* Update Thermal Cruise/Smart Fan I target value */
 		for (i = 0; i < 3; i++) {
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index d6b0bdd4865..4fc47e06207 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -442,27 +442,6 @@ store_beep_enable(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-/* Write any value to clear chassis alarm */
-static ssize_t
-store_chassis_clear_legacy(struct device *dev,
-			   struct device_attribute *attr, const char *buf,
-			   size_t count)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83793_data *data = i2c_get_clientdata(client);
-	u8 val;
-
-	dev_warn(dev, "Attribute chassis is deprecated, "
-		 "use intrusion0_alarm instead\n");
-
-	mutex_lock(&data->update_lock);
-	val = w83793_read_value(client, W83793_REG_CLR_CHASSIS);
-	val |= 0x80;
-	w83793_write_value(client, W83793_REG_CLR_CHASSIS, val);
-	mutex_unlock(&data->update_lock);
-	return count;
-}
-
 /* Write 0 to clear chassis alarm */
 static ssize_t
 store_chassis_clear(struct device *dev,
@@ -1189,8 +1168,6 @@ static struct sensor_device_attribute_2 w83793_vid[] = {
 static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm);
 
 static struct sensor_device_attribute_2 sda_single_files[] = {
-	SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
-		      store_chassis_clear_legacy, ALARM_STATUS, 30),
 	SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm_beep,
 		      store_chassis_clear, ALARM_STATUS, 30),
 	SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
index 5850b770608..c99c8a0473c 100644
--- a/drivers/hwmon/w83l786ng.c
+++ b/drivers/hwmon/w83l786ng.c
@@ -668,11 +668,10 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	int i, err = 0;
 	u8 reg_tmp;
 
-	data = kzalloc(sizeof(struct w83l786ng_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	data = devm_kzalloc(&client->dev, sizeof(struct w83l786ng_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
@@ -708,8 +707,6 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 exit_remove:
 	sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
-	kfree(data);
-exit:
 	return err;
 }
 
@@ -721,8 +718,6 @@ w83l786ng_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
 
-	kfree(data);
-
 	return 0;
 }
 
diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c
index 1201a15784c..db713c0dfba 100644
--- a/drivers/hwspinlock/hwspinlock_core.c
+++ b/drivers/hwspinlock/hwspinlock_core.c
@@ -552,7 +552,7 @@ EXPORT_SYMBOL_GPL(hwspin_lock_request_specific);
  */
 int hwspin_lock_free(struct hwspinlock *hwlock)
 {
-	struct device *dev = hwlock->bank->dev;
+	struct device *dev;
 	struct hwspinlock *tmp;
 	int ret;
 
@@ -561,6 +561,7 @@ int hwspin_lock_free(struct hwspinlock *hwlock)
 		return -EINVAL;
 	}
 
+	dev = hwlock->bank->dev;
 	mutex_lock(&hwspinlock_tree_lock);
 
 	/* make sure the hwspinlock is used */
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 73133b1063f..6f5f98d69af 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -476,17 +476,17 @@ static int pca_init(struct i2c_adapter *adap)
 		/* To avoid integer overflow, use clock/100 for calculations */
 		clock = pca_clock(pca_data) / 100;
 
-		if (pca_data->i2c_clock > 10000) {
+		if (pca_data->i2c_clock > 1000000) {
 			mode = I2C_PCA_MODE_TURBO;
 			min_tlow = 14;
 			min_thi  = 5;
 			raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */
-		} else if (pca_data->i2c_clock > 4000) {
+		} else if (pca_data->i2c_clock > 400000) {
 			mode = I2C_PCA_MODE_FASTP;
 			min_tlow = 17;
 			min_thi  = 9;
 			raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */
-		} else if (pca_data->i2c_clock > 1000) {
+		} else if (pca_data->i2c_clock > 100000) {
 			mode = I2C_PCA_MODE_FAST;
 			min_tlow = 44;
 			min_thi  = 20;
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index b4aaa1bd672..42d9fdd63de 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -104,6 +104,7 @@ config I2C_I801
 	    DH89xxCC (PCH)
 	    Panther Point (PCH)
 	    Lynx Point (PCH)
+	    Lynx Point-LP (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
@@ -354,9 +355,13 @@ config I2C_DAVINCI
 	  devices such as DaVinci NIC.
 	  For details please see http://www.ti.com/davinci
 
+config I2C_DESIGNWARE_CORE
+	tristate
+
 config I2C_DESIGNWARE_PLATFORM
 	tristate "Synopsys DesignWare Platform"
 	depends on HAVE_CLK
+	select I2C_DESIGNWARE_CORE
 	help
 	  If you say yes to this option, support will be included for the
 	  Synopsys DesignWare I2C adapter. Only master mode is supported.
@@ -367,6 +372,7 @@ config I2C_DESIGNWARE_PLATFORM
 config I2C_DESIGNWARE_PCI
 	tristate "Synopsys DesignWare PCI"
 	depends on PCI
+	select I2C_DESIGNWARE_CORE
 	help
 	  If you say yes to this option, support will be included for the
 	  Synopsys DesignWare I2C adapter. Only master mode is supported.
@@ -545,7 +551,7 @@ config I2C_PMCMSP
 
 config I2C_PNX
 	tristate "I2C bus support for Philips PNX and NXP LPC targets"
-	depends on ARCH_PNX4008 || ARCH_LPC32XX
+	depends on ARCH_LPC32XX
 	help
 	  This driver supports the Philips IP3204 I2C IP block master and/or
 	  slave controller
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index ce3c2be7fb4..37c4182cc98 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -33,10 +33,11 @@ obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
 obj-$(CONFIG_I2C_BLACKFIN_TWI)	+= i2c-bfin-twi.o
 obj-$(CONFIG_I2C_CPM)		+= i2c-cpm.o
 obj-$(CONFIG_I2C_DAVINCI)	+= i2c-davinci.o
+obj-$(CONFIG_I2C_DESIGNWARE_CORE)	+= i2c-designware-core.o
 obj-$(CONFIG_I2C_DESIGNWARE_PLATFORM)	+= i2c-designware-platform.o
-i2c-designware-platform-objs := i2c-designware-platdrv.o i2c-designware-core.o
+i2c-designware-platform-objs := i2c-designware-platdrv.o
 obj-$(CONFIG_I2C_DESIGNWARE_PCI)	+= i2c-designware-pci.o
-i2c-designware-pci-objs := i2c-designware-pcidrv.o i2c-designware-core.o
+i2c-designware-pci-objs := i2c-designware-pcidrv.o
 obj-$(CONFIG_I2C_EG20T)		+= i2c-eg20t.o
 obj-$(CONFIG_I2C_GPIO)		+= i2c-gpio.o
 obj-$(CONFIG_I2C_HIGHLANDER)	+= i2c-highlander.o
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 79b4bcb3b85..79a2542d8c4 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -40,7 +40,7 @@
 #include <linux/gpio.h>
 
 #include <mach/hardware.h>
-#include <mach/i2c.h>
+#include <linux/platform_data/i2c-davinci.h>
 
 /* ----- global defines ----------------------------------------------- */
 
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 1e48bec80ed..7b8ebbefb58 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -25,6 +25,7 @@
  * ----------------------------------------------------------------------------
  *
  */
+#include <linux/export.h>
 #include <linux/clk.h>
 #include <linux/errno.h>
 #include <linux/err.h>
@@ -316,6 +317,7 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 	dw_writel(dev, dev->master_cfg , DW_IC_CON);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(i2c_dw_init);
 
 /*
  * Waiting for bus not busy
@@ -568,12 +570,14 @@ done:
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(i2c_dw_xfer);
 
 u32 i2c_dw_func(struct i2c_adapter *adap)
 {
 	struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
 	return dev->functionality;
 }
+EXPORT_SYMBOL_GPL(i2c_dw_func);
 
 static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev)
 {
@@ -678,17 +682,20 @@ tx_aborted:
 
 	return IRQ_HANDLED;
 }
+EXPORT_SYMBOL_GPL(i2c_dw_isr);
 
 void i2c_dw_enable(struct dw_i2c_dev *dev)
 {
        /* Enable the adapter */
 	dw_writel(dev, 1, DW_IC_ENABLE);
 }
+EXPORT_SYMBOL_GPL(i2c_dw_enable);
 
 u32 i2c_dw_is_enabled(struct dw_i2c_dev *dev)
 {
 	return dw_readl(dev, DW_IC_ENABLE);
 }
+EXPORT_SYMBOL_GPL(i2c_dw_is_enabled);
 
 void i2c_dw_disable(struct dw_i2c_dev *dev)
 {
@@ -699,18 +706,22 @@ void i2c_dw_disable(struct dw_i2c_dev *dev)
 	dw_writel(dev, 0, DW_IC_INTR_MASK);
 	dw_readl(dev, DW_IC_CLR_INTR);
 }
+EXPORT_SYMBOL_GPL(i2c_dw_disable);
 
 void i2c_dw_clear_int(struct dw_i2c_dev *dev)
 {
 	dw_readl(dev, DW_IC_CLR_INTR);
 }
+EXPORT_SYMBOL_GPL(i2c_dw_clear_int);
 
 void i2c_dw_disable_int(struct dw_i2c_dev *dev)
 {
 	dw_writel(dev, 0, DW_IC_INTR_MASK);
 }
+EXPORT_SYMBOL_GPL(i2c_dw_disable_int);
 
 u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev)
 {
 	return dw_readl(dev, DW_IC_COMP_PARAM_1);
 }
+EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param);
diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c
index aedb94f34bf..dae3ddfe761 100644
--- a/drivers/i2c/busses/i2c-diolan-u2c.c
+++ b/drivers/i2c/busses/i2c-diolan-u2c.c
@@ -405,6 +405,7 @@ static int diolan_usb_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
 			}
 		}
 	}
+	ret = num;
 abort:
 	sret = diolan_i2c_stop(dev);
 	if (sret < 0 && ret >= 0)
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 898dcf9c7ad..33e9b0c09af 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -52,6 +52,7 @@
   DH89xxCC (PCH)        0x2330     32     hard     yes     yes     yes
   Panther Point (PCH)   0x1e22     32     hard     yes     yes     yes
   Lynx Point (PCH)      0x8c22     32     hard     yes     yes     yes
+  Lynx Point-LP (PCH)   0x9c22     32     hard     yes     yes     yes
 
   Features supported by this driver:
   Software PEC                     no
@@ -155,6 +156,7 @@
 #define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS	0x2330
 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS	0x3b30
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS	0x8c22
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS	0x9c22
 
 struct i801_priv {
 	struct i2c_adapter adapter;
@@ -771,6 +773,7 @@ static DEFINE_PCI_DEVICE_TABLE(i801_ids) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS) },
 	{ 0, }
 };
 
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 0722f869465..b7907ba7448 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -54,7 +54,7 @@
 #include <linux/pinctrl/consumer.h>
 
 #include <mach/hardware.h>
-#include <mach/i2c.h>
+#include <linux/platform_data/i2c-imx.h>
 
 /** Defines ********************************************************************
 *******************************************************************************/
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index 93f147a96b6..2f99613fd67 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -4,13 +4,13 @@
 /* Copyright (C) 2003 Peter Milne, D-TACQ Solutions Ltd
  *                    <Peter dot Milne at D hyphen TACQ dot com>
  *
- * With acknowledgements to i2c-algo-ibm_ocp.c by 
+ * With acknowledgements to i2c-algo-ibm_ocp.c by
  * Ian DaSilva, MontaVista Software, Inc. idasilva@mvista.com
  *
  * And i2c-algo-pcf.c, which was created by Simon G. Vogl and Hans Berglund:
  *
  * Copyright (C) 1995-1997 Simon G. Vogl, 1998-2000 Hans Berglund
- *  
+ *
  * And which acknowledged Kyösti Mälkki <kmalkki@cc.hut.fi>,
  * Frodo Looijaard <frodol@dds.nl>, Martin Bailey<mbailey@littlefeet-inc.com>
  *
@@ -39,14 +39,15 @@
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 
 #include "i2c-iop3xx.h"
 
 /* global unit counter */
 static int i2c_id;
 
-static inline unsigned char 
-iic_cook_addr(struct i2c_msg *msg) 
+static inline unsigned char
+iic_cook_addr(struct i2c_msg *msg)
 {
 	unsigned char addr;
 
@@ -55,38 +56,38 @@ iic_cook_addr(struct i2c_msg *msg)
 	if (msg->flags & I2C_M_RD)
 		addr |= 1;
 
-	return addr;   
+	return addr;
 }
 
-static void 
+static void
 iop3xx_i2c_reset(struct i2c_algo_iop3xx_data *iop3xx_adap)
 {
 	/* Follows devman 9.3 */
 	__raw_writel(IOP3XX_ICR_UNIT_RESET, iop3xx_adap->ioaddr + CR_OFFSET);
 	__raw_writel(IOP3XX_ISR_CLEARBITS, iop3xx_adap->ioaddr + SR_OFFSET);
 	__raw_writel(0, iop3xx_adap->ioaddr + CR_OFFSET);
-} 
+}
 
-static void 
+static void
 iop3xx_i2c_enable(struct i2c_algo_iop3xx_data *iop3xx_adap)
 {
 	u32 cr = IOP3XX_ICR_GCD | IOP3XX_ICR_SCLEN | IOP3XX_ICR_UE;
 
-	/* 
+	/*
 	 * Every time unit enable is asserted, GPOD needs to be cleared
 	 * on IOP3XX to avoid data corruption on the bus.
 	 */
 #if defined(CONFIG_ARCH_IOP32X) || defined(CONFIG_ARCH_IOP33X)
 	if (iop3xx_adap->id == 0) {
-		gpio_line_set(IOP3XX_GPIO_LINE(7), GPIO_LOW);
-		gpio_line_set(IOP3XX_GPIO_LINE(6), GPIO_LOW);
+		gpio_set_value(7, 0);
+		gpio_set_value(6, 0);
 	} else {
-		gpio_line_set(IOP3XX_GPIO_LINE(5), GPIO_LOW);
-		gpio_line_set(IOP3XX_GPIO_LINE(4), GPIO_LOW);
+		gpio_set_value(5, 0);
+		gpio_set_value(4, 0);
 	}
 #endif
 	/* NB SR bits not same position as CR IE bits :-( */
-	iop3xx_adap->SR_enabled = 
+	iop3xx_adap->SR_enabled =
 		IOP3XX_ISR_ALD | IOP3XX_ISR_BERRD |
 		IOP3XX_ISR_RXFULL | IOP3XX_ISR_TXEMPTY;
 
@@ -96,23 +97,23 @@ iop3xx_i2c_enable(struct i2c_algo_iop3xx_data *iop3xx_adap)
 	__raw_writel(cr, iop3xx_adap->ioaddr + CR_OFFSET);
 }
 
-static void 
+static void
 iop3xx_i2c_transaction_cleanup(struct i2c_algo_iop3xx_data *iop3xx_adap)
 {
 	unsigned long cr = __raw_readl(iop3xx_adap->ioaddr + CR_OFFSET);
-	
-	cr &= ~(IOP3XX_ICR_MSTART | IOP3XX_ICR_TBYTE | 
+
+	cr &= ~(IOP3XX_ICR_MSTART | IOP3XX_ICR_TBYTE |
 		IOP3XX_ICR_MSTOP | IOP3XX_ICR_SCLEN);
 
 	__raw_writel(cr, iop3xx_adap->ioaddr + CR_OFFSET);
 }
 
-/* 
- * NB: the handler has to clear the source of the interrupt! 
+/*
+ * NB: the handler has to clear the source of the interrupt!
  * Then it passes the SR flags of interest to BH via adap data
  */
-static irqreturn_t 
-iop3xx_i2c_irq_handler(int this_irq, void *dev_id) 
+static irqreturn_t
+iop3xx_i2c_irq_handler(int this_irq, void *dev_id)
 {
 	struct i2c_algo_iop3xx_data *iop3xx_adap = dev_id;
 	u32 sr = __raw_readl(iop3xx_adap->ioaddr + SR_OFFSET);
@@ -126,7 +127,7 @@ iop3xx_i2c_irq_handler(int this_irq, void *dev_id)
 }
 
 /* check all error conditions, clear them , report most important */
-static int 
+static int
 iop3xx_i2c_error(u32 sr)
 {
 	int rc = 0;
@@ -135,12 +136,12 @@ iop3xx_i2c_error(u32 sr)
 		if ( !rc ) rc = -I2C_ERR_BERR;
 	}
 	if ((sr & IOP3XX_ISR_ALD)) {
-		if ( !rc ) rc = -I2C_ERR_ALD;		
+		if ( !rc ) rc = -I2C_ERR_ALD;
 	}
-	return rc;	
+	return rc;
 }
 
-static inline u32 
+static inline u32
 iop3xx_i2c_get_srstat(struct i2c_algo_iop3xx_data *iop3xx_adap)
 {
 	unsigned long flags;
@@ -161,8 +162,8 @@ iop3xx_i2c_get_srstat(struct i2c_algo_iop3xx_data *iop3xx_adap)
 typedef int (* compare_func)(unsigned test, unsigned mask);
 /* returns 1 on correct comparison */
 
-static int 
-iop3xx_i2c_wait_event(struct i2c_algo_iop3xx_data *iop3xx_adap, 
+static int
+iop3xx_i2c_wait_event(struct i2c_algo_iop3xx_data *iop3xx_adap,
 			  unsigned flags, unsigned* status,
 			  compare_func compare)
 {
@@ -192,47 +193,47 @@ iop3xx_i2c_wait_event(struct i2c_algo_iop3xx_data *iop3xx_adap,
 }
 
 /*
- * Concrete compare_funcs 
+ * Concrete compare_funcs
  */
-static int 
+static int
 all_bits_clear(unsigned test, unsigned mask)
 {
 	return (test & mask) == 0;
 }
 
-static int 
+static int
 any_bits_set(unsigned test, unsigned mask)
 {
 	return (test & mask) != 0;
 }
 
-static int 
+static int
 iop3xx_i2c_wait_tx_done(struct i2c_algo_iop3xx_data *iop3xx_adap, int *status)
 {
-	return iop3xx_i2c_wait_event( 
-		iop3xx_adap, 
+	return iop3xx_i2c_wait_event(
+		iop3xx_adap,
 	        IOP3XX_ISR_TXEMPTY | IOP3XX_ISR_ALD | IOP3XX_ISR_BERRD,
 		status, any_bits_set);
 }
 
-static int 
+static int
 iop3xx_i2c_wait_rx_done(struct i2c_algo_iop3xx_data *iop3xx_adap, int *status)
 {
-	return iop3xx_i2c_wait_event( 
-		iop3xx_adap, 
+	return iop3xx_i2c_wait_event(
+		iop3xx_adap,
 		IOP3XX_ISR_RXFULL | IOP3XX_ISR_ALD | IOP3XX_ISR_BERRD,
 		status,	any_bits_set);
 }
 
-static int 
+static int
 iop3xx_i2c_wait_idle(struct i2c_algo_iop3xx_data *iop3xx_adap, int *status)
 {
-	return iop3xx_i2c_wait_event( 
+	return iop3xx_i2c_wait_event(
 		iop3xx_adap, IOP3XX_ISR_UNITBUSY, status, all_bits_clear);
 }
 
-static int 
-iop3xx_i2c_send_target_addr(struct i2c_algo_iop3xx_data *iop3xx_adap, 
+static int
+iop3xx_i2c_send_target_addr(struct i2c_algo_iop3xx_data *iop3xx_adap,
 				struct i2c_msg* msg)
 {
 	unsigned long cr = __raw_readl(iop3xx_adap->ioaddr + CR_OFFSET);
@@ -247,7 +248,7 @@ iop3xx_i2c_send_target_addr(struct i2c_algo_iop3xx_data *iop3xx_adap,
 	}
 
 	__raw_writel(iic_cook_addr(msg), iop3xx_adap->ioaddr + DBR_OFFSET);
-	
+
 	cr &= ~(IOP3XX_ICR_MSTOP | IOP3XX_ICR_NACK);
 	cr |= IOP3XX_ICR_MSTART | IOP3XX_ICR_TBYTE;
 
@@ -257,8 +258,8 @@ iop3xx_i2c_send_target_addr(struct i2c_algo_iop3xx_data *iop3xx_adap,
 	return rc;
 }
 
-static int 
-iop3xx_i2c_write_byte(struct i2c_algo_iop3xx_data *iop3xx_adap, char byte, 
+static int
+iop3xx_i2c_write_byte(struct i2c_algo_iop3xx_data *iop3xx_adap, char byte,
 				int stop)
 {
 	unsigned long cr = __raw_readl(iop3xx_adap->ioaddr + CR_OFFSET);
@@ -277,10 +278,10 @@ iop3xx_i2c_write_byte(struct i2c_algo_iop3xx_data *iop3xx_adap, char byte,
 	rc = iop3xx_i2c_wait_tx_done(iop3xx_adap, &status);
 
 	return rc;
-} 
+}
 
-static int 
-iop3xx_i2c_read_byte(struct i2c_algo_iop3xx_data *iop3xx_adap, char* byte, 
+static int
+iop3xx_i2c_read_byte(struct i2c_algo_iop3xx_data *iop3xx_adap, char* byte,
 				int stop)
 {
 	unsigned long cr = __raw_readl(iop3xx_adap->ioaddr + CR_OFFSET);
@@ -304,19 +305,19 @@ iop3xx_i2c_read_byte(struct i2c_algo_iop3xx_data *iop3xx_adap, char* byte,
 	return rc;
 }
 
-static int 
+static int
 iop3xx_i2c_writebytes(struct i2c_adapter *i2c_adap, const char *buf, int count)
 {
 	struct i2c_algo_iop3xx_data *iop3xx_adap = i2c_adap->algo_data;
 	int ii;
 	int rc = 0;
 
-	for (ii = 0; rc == 0 && ii != count; ++ii) 
+	for (ii = 0; rc == 0 && ii != count; ++ii)
 		rc = iop3xx_i2c_write_byte(iop3xx_adap, buf[ii], ii==count-1);
 	return rc;
 }
 
-static int 
+static int
 iop3xx_i2c_readbytes(struct i2c_adapter *i2c_adap, char *buf, int count)
 {
 	struct i2c_algo_iop3xx_data *iop3xx_adap = i2c_adap->algo_data;
@@ -325,7 +326,7 @@ iop3xx_i2c_readbytes(struct i2c_adapter *i2c_adap, char *buf, int count)
 
 	for (ii = 0; rc == 0 && ii != count; ++ii)
 		rc = iop3xx_i2c_read_byte(iop3xx_adap, &buf[ii], ii==count-1);
-	
+
 	return rc;
 }
 
@@ -336,8 +337,8 @@ iop3xx_i2c_readbytes(struct i2c_adapter *i2c_adap, char *buf, int count)
  * Each transfer (i.e. a read or a write) is separated by a repeated start
  * condition.
  */
-static int 
-iop3xx_i2c_handle_msg(struct i2c_adapter *i2c_adap, struct i2c_msg* pmsg) 
+static int
+iop3xx_i2c_handle_msg(struct i2c_adapter *i2c_adap, struct i2c_msg* pmsg)
 {
 	struct i2c_algo_iop3xx_data *iop3xx_adap = i2c_adap->algo_data;
 	int rc;
@@ -357,8 +358,8 @@ iop3xx_i2c_handle_msg(struct i2c_adapter *i2c_adap, struct i2c_msg* pmsg)
 /*
  * master_xfer() - main read/write entry
  */
-static int 
-iop3xx_i2c_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, 
+static int
+iop3xx_i2c_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
 				int num)
 {
 	struct i2c_algo_iop3xx_data *iop3xx_adap = i2c_adap->algo_data;
@@ -375,14 +376,14 @@ iop3xx_i2c_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
 	}
 
 	iop3xx_i2c_transaction_cleanup(iop3xx_adap);
-	
+
 	if(ret)
 		return ret;
 
-	return im;   
+	return im;
 }
 
-static u32 
+static u32
 iop3xx_i2c_func(struct i2c_adapter *adap)
 {
 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
@@ -393,11 +394,11 @@ static const struct i2c_algorithm iop3xx_i2c_algo = {
 	.functionality	= iop3xx_i2c_func,
 };
 
-static int 
+static int
 iop3xx_i2c_remove(struct platform_device *pdev)
 {
 	struct i2c_adapter *padapter = platform_get_drvdata(pdev);
-	struct i2c_algo_iop3xx_data *adapter_data = 
+	struct i2c_algo_iop3xx_data *adapter_data =
 		(struct i2c_algo_iop3xx_data *)padapter->algo_data;
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	unsigned long cr = __raw_readl(adapter_data->ioaddr + CR_OFFSET);
@@ -419,7 +420,7 @@ iop3xx_i2c_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int 
+static int
 iop3xx_i2c_probe(struct platform_device *pdev)
 {
 	struct resource *res;
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index b76731edbf1..57f7703ce2e 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -647,7 +647,7 @@ static int __devinit fsl_i2c_probe(struct platform_device *op)
 	}
 
 	if (match->data) {
-		struct mpc_i2c_data *data = match->data;
+		const struct mpc_i2c_data *data = match->data;
 		data->setup(op->dev.of_node, i2c, clock, data->prescaler);
 	} else {
 		/* Backwards compatibility */
@@ -730,24 +730,24 @@ static int mpc_i2c_resume(struct device *dev)
 SIMPLE_DEV_PM_OPS(mpc_i2c_pm_ops, mpc_i2c_suspend, mpc_i2c_resume);
 #endif
 
-static struct mpc_i2c_data mpc_i2c_data_512x __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_512x __devinitdata = {
 	.setup = mpc_i2c_setup_512x,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_52xx __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_52xx __devinitdata = {
 	.setup = mpc_i2c_setup_52xx,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_8313 __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_8313 __devinitdata = {
 	.setup = mpc_i2c_setup_8xxx,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_8543 __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_8543 __devinitdata = {
 	.setup = mpc_i2c_setup_8xxx,
 	.prescaler = 2,
 };
 
-static struct mpc_i2c_data mpc_i2c_data_8544 __devinitdata = {
+static const struct mpc_i2c_data mpc_i2c_data_8544 __devinitdata = {
 	.setup = mpc_i2c_setup_8xxx,
 	.prescaler = 3,
 };
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 088c5c1ed17..51f05b8520e 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -365,10 +365,6 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c)
 	struct device_node *node = dev->of_node;
 	int ret;
 
-	if (!node)
-		return -EINVAL;
-
-	i2c->speed = &mxs_i2c_95kHz_config;
 	ret = of_property_read_u32(node, "clock-frequency", &speed);
 	if (ret)
 		dev_warn(dev, "No I2C speed selected, using 100kHz\n");
@@ -419,10 +415,13 @@ static int __devinit mxs_i2c_probe(struct platform_device *pdev)
 		return err;
 
 	i2c->dev = dev;
+	i2c->speed = &mxs_i2c_95kHz_config;
 
-	err = mxs_i2c_get_ofdata(i2c);
-	if (err)
-		return err;
+	if (dev->of_node) {
+		err = mxs_i2c_get_ofdata(i2c);
+		if (err)
+			return err;
+	}
 
 	platform_set_drvdata(pdev, i2c);
 
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 5e6f1eed4f8..61b00edacb0 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -350,10 +350,6 @@ static void setup_i2c_controller(struct nmk_i2c_dev *dev)
 
 	i2c_clk = clk_get_rate(dev->clk);
 
-	/* fallback to std. mode if machine has not provided it */
-	if (dev->cfg.clk_freq == 0)
-		dev->cfg.clk_freq = 100000;
-
 	/*
 	 * The spec says, in case of std. mode the divider is
 	 * 2 whereas it is 3 for fast and fastplus mode of
@@ -911,20 +907,32 @@ static const struct i2c_algorithm nmk_i2c_algo = {
 	.functionality	= nmk_i2c_functionality
 };
 
+static struct nmk_i2c_controller u8500_i2c = {
+	/*
+	 * Slave data setup time; 250ns, 100ns, and 10ns, which
+	 * is 14, 6 and 2 respectively for a 48Mhz i2c clock.
+	 */
+	.slsu           = 0xe,
+	.tft            = 1,      /* Tx FIFO threshold */
+	.rft            = 8,      /* Rx FIFO threshold */
+	.clk_freq       = 400000, /* fast mode operation */
+	.timeout        = 200,    /* Slave response timeout(ms) */
+	.sm             = I2C_FREQ_MODE_FAST,
+};
+
 static atomic_t adapter_id = ATOMIC_INIT(0);
 
 static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 {
 	int ret = 0;
-	struct nmk_i2c_controller *pdata =
-			adev->dev.platform_data;
+	struct nmk_i2c_controller *pdata = adev->dev.platform_data;
 	struct nmk_i2c_dev	*dev;
 	struct i2c_adapter *adap;
 
-	if (!pdata) {
-		dev_warn(&adev->dev, "no platform data\n");
-		return -ENODEV;
-	}
+	if (!pdata)
+		/* No i2c configuration found, using the default. */
+		pdata = &u8500_i2c;
+
 	dev = kzalloc(sizeof(struct nmk_i2c_dev), GFP_KERNEL);
 	if (!dev) {
 		dev_err(&adev->dev, "cannot allocate memory\n");
diff --git a/drivers/i2c/busses/i2c-nuc900.c b/drivers/i2c/busses/i2c-nuc900.c
index a26dfb8cd58..f41502ef3f5 100644
--- a/drivers/i2c/busses/i2c-nuc900.c
+++ b/drivers/i2c/busses/i2c-nuc900.c
@@ -29,7 +29,7 @@
 #include <linux/io.h>
 
 #include <mach/mfp.h>
-#include <mach/i2c.h>
+#include <linux/platform_data/i2c-nuc900.h>
 
 /* nuc900 i2c registers offset */
 
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 6849635b268..a0e49f6aaf9 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -584,7 +584,7 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 
 	r = pm_runtime_get_sync(dev->dev);
 	if (IS_ERR_VALUE(r))
-		return r;
+		goto out;
 
 	r = omap_i2c_wait_for_bb(dev);
 	if (r < 0)
@@ -944,7 +944,8 @@ omap_i2c_probe(struct platform_device *pdev)
 	struct omap_i2c_dev	*dev;
 	struct i2c_adapter	*adap;
 	struct resource		*mem, *irq, *ioarea;
-	struct omap_i2c_bus_platform_data *pdata = pdev->dev.platform_data;
+	const struct omap_i2c_bus_platform_data *pdata =
+		pdev->dev.platform_data;
 	struct device_node	*node = pdev->dev.of_node;
 	const struct of_device_id *match;
 	irq_handler_t isr;
diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index 5d54416770b..8488bddfe46 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -48,8 +48,9 @@ enum {
 	mcntrl_afie = 0x00000002,
 	mcntrl_naie = 0x00000004,
 	mcntrl_drmie = 0x00000008,
-	mcntrl_daie = 0x00000020,
-	mcntrl_rffie = 0x00000040,
+	mcntrl_drsie = 0x00000010,
+	mcntrl_rffie = 0x00000020,
+	mcntrl_daie = 0x00000040,
 	mcntrl_tffie = 0x00000080,
 	mcntrl_reset = 0x00000100,
 	mcntrl_cdbmode = 0x00000400,
@@ -290,31 +291,37 @@ static int i2c_pnx_master_rcv(struct i2c_pnx_algo_data *alg_data)
 	 * or we didn't 'ask' for it yet.
 	 */
 	if (ioread32(I2C_REG_STS(alg_data)) & mstatus_rfe) {
-		dev_dbg(&alg_data->adapter.dev,
-			"%s(): Write dummy data to fill Rx-fifo...\n",
-			__func__);
+		/* 'Asking' is done asynchronously, e.g. dummy TX of several
+		 * bytes is done before the first actual RX arrives in FIFO.
+		 * Therefore, ordered bytes (via TX) are counted separately.
+		 */
+		if (alg_data->mif.order) {
+			dev_dbg(&alg_data->adapter.dev,
+				"%s(): Write dummy data to fill Rx-fifo...\n",
+				__func__);
 
-		if (alg_data->mif.len == 1) {
-			/* Last byte, do not acknowledge next rcv. */
-			val |= stop_bit;
+			if (alg_data->mif.order == 1) {
+				/* Last byte, do not acknowledge next rcv. */
+				val |= stop_bit;
+
+				/*
+				 * Enable interrupt RFDAIE (data in Rx fifo),
+				 * and disable DRMIE (need data for Tx)
+				 */
+				ctl = ioread32(I2C_REG_CTL(alg_data));
+				ctl |= mcntrl_rffie | mcntrl_daie;
+				ctl &= ~mcntrl_drmie;
+				iowrite32(ctl, I2C_REG_CTL(alg_data));
+			}
 
 			/*
-			 * Enable interrupt RFDAIE (data in Rx fifo),
-			 * and disable DRMIE (need data for Tx)
+			 * Now we'll 'ask' for data:
+			 * For each byte we want to receive, we must
+			 * write a (dummy) byte to the Tx-FIFO.
 			 */
-			ctl = ioread32(I2C_REG_CTL(alg_data));
-			ctl |= mcntrl_rffie | mcntrl_daie;
-			ctl &= ~mcntrl_drmie;
-			iowrite32(ctl, I2C_REG_CTL(alg_data));
+			iowrite32(val, I2C_REG_TX(alg_data));
+			alg_data->mif.order--;
 		}
-
-		/*
-		 * Now we'll 'ask' for data:
-		 * For each byte we want to receive, we must
-		 * write a (dummy) byte to the Tx-FIFO.
-		 */
-		iowrite32(val, I2C_REG_TX(alg_data));
-
 		return 0;
 	}
 
@@ -514,6 +521,7 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 
 		alg_data->mif.buf = pmsg->buf;
 		alg_data->mif.len = pmsg->len;
+		alg_data->mif.order = pmsg->len;
 		alg_data->mif.mode = (pmsg->flags & I2C_M_RD) ?
 			I2C_SMBUS_READ : I2C_SMBUS_WRITE;
 		alg_data->mif.ret = 0;
@@ -566,6 +574,7 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 	/* Cleanup to be sure... */
 	alg_data->mif.buf = NULL;
 	alg_data->mif.len = 0;
+	alg_data->mif.order = 0;
 
 	dev_dbg(&alg_data->adapter.dev, "%s(): exiting, stat = %x\n",
 		__func__, ioread32(I2C_REG_STS(alg_data)));
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 5ae3b0236bd..4d07dea9bca 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -42,7 +42,7 @@
 #include <asm/irq.h>
 
 #include <plat/regs-iic.h>
-#include <plat/iic.h>
+#include <linux/platform_data/i2c-s3c2410.h>
 
 /* Treat S3C2410 as baseline hardware, anything else is supported via quirks */
 #define QUIRK_S3C2440		(1 << 0)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 66eb53fac20..f981ac4e678 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -27,6 +27,7 @@
 #include <linux/slab.h>
 #include <linux/i2c-tegra.h>
 #include <linux/of_i2c.h>
+#include <linux/of_device.h>
 #include <linux/module.h>
 
 #include <asm/unaligned.h>
@@ -114,11 +115,21 @@ enum msg_end_type {
 };
 
 /**
+ * struct tegra_i2c_hw_feature : Different HW support on Tegra
+ * @has_continue_xfer_support: Continue transfer supports.
+ */
+
+struct tegra_i2c_hw_feature {
+	bool has_continue_xfer_support;
+};
+
+/**
  * struct tegra_i2c_dev	- per device i2c context
  * @dev: device reference for power management
+ * @hw: Tegra i2c hw feature.
  * @adapter: core i2c layer adapter information
- * @clk: clock reference for i2c controller
- * @i2c_clk: clock reference for i2c bus
+ * @div_clk: clock reference for div clock of i2c controller.
+ * @fast_clk: clock reference for fast clock of i2c controller.
  * @base: ioremapped registers cookie
  * @cont_id: i2c controller id, used for for packet header
  * @irq: irq number of transfer complete interrupt
@@ -133,9 +144,10 @@ enum msg_end_type {
  */
 struct tegra_i2c_dev {
 	struct device *dev;
+	const struct tegra_i2c_hw_feature *hw;
 	struct i2c_adapter adapter;
-	struct clk *clk;
-	struct clk *i2c_clk;
+	struct clk *div_clk;
+	struct clk *fast_clk;
 	void __iomem *base;
 	int cont_id;
 	int irq;
@@ -351,16 +363,40 @@ static void tegra_dvc_init(struct tegra_i2c_dev *i2c_dev)
 	dvc_writel(i2c_dev, val, DVC_CTRL_REG1);
 }
 
+static inline int tegra_i2c_clock_enable(struct tegra_i2c_dev *i2c_dev)
+{
+	int ret;
+	ret = clk_prepare_enable(i2c_dev->fast_clk);
+	if (ret < 0) {
+		dev_err(i2c_dev->dev,
+			"Enabling fast clk failed, err %d\n", ret);
+		return ret;
+	}
+	ret = clk_prepare_enable(i2c_dev->div_clk);
+	if (ret < 0) {
+		dev_err(i2c_dev->dev,
+			"Enabling div clk failed, err %d\n", ret);
+		clk_disable_unprepare(i2c_dev->fast_clk);
+	}
+	return ret;
+}
+
+static inline void tegra_i2c_clock_disable(struct tegra_i2c_dev *i2c_dev)
+{
+	clk_disable_unprepare(i2c_dev->div_clk);
+	clk_disable_unprepare(i2c_dev->fast_clk);
+}
+
 static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
 {
 	u32 val;
 	int err = 0;
 
-	clk_prepare_enable(i2c_dev->clk);
+	tegra_i2c_clock_enable(i2c_dev);
 
-	tegra_periph_reset_assert(i2c_dev->clk);
+	tegra_periph_reset_assert(i2c_dev->div_clk);
 	udelay(2);
-	tegra_periph_reset_deassert(i2c_dev->clk);
+	tegra_periph_reset_deassert(i2c_dev->div_clk);
 
 	if (i2c_dev->is_dvc)
 		tegra_dvc_init(i2c_dev);
@@ -369,7 +405,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
 		(0x2 << I2C_CNFG_DEBOUNCE_CNT_SHIFT);
 	i2c_writel(i2c_dev, val, I2C_CNFG);
 	i2c_writel(i2c_dev, 0, I2C_INT_MASK);
-	clk_set_rate(i2c_dev->clk, i2c_dev->bus_clk_rate * 8);
+	clk_set_rate(i2c_dev->div_clk, i2c_dev->bus_clk_rate * 8);
 
 	if (!i2c_dev->is_dvc) {
 		u32 sl_cfg = i2c_readl(i2c_dev, I2C_SL_CNFG);
@@ -387,7 +423,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev)
 	if (tegra_i2c_flush_fifos(i2c_dev))
 		err = -ETIMEDOUT;
 
-	clk_disable_unprepare(i2c_dev->clk);
+	tegra_i2c_clock_disable(i2c_dev);
 
 	if (i2c_dev->irq_disabled) {
 		i2c_dev->irq_disabled = 0;
@@ -563,7 +599,7 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
 	if (i2c_dev->is_suspended)
 		return -EBUSY;
 
-	clk_prepare_enable(i2c_dev->clk);
+	tegra_i2c_clock_enable(i2c_dev);
 	for (i = 0; i < num; i++) {
 		enum msg_end_type end_type = MSG_END_STOP;
 		if (i < (num - 1)) {
@@ -576,14 +612,19 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
 		if (ret)
 			break;
 	}
-	clk_disable_unprepare(i2c_dev->clk);
+	tegra_i2c_clock_disable(i2c_dev);
 	return ret ?: i;
 }
 
 static u32 tegra_i2c_func(struct i2c_adapter *adap)
 {
-	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
-		I2C_FUNC_PROTOCOL_MANGLING | I2C_FUNC_NOSTART;
+	struct tegra_i2c_dev *i2c_dev = i2c_get_adapdata(adap);
+	u32 ret = I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
+				I2C_FUNC_PROTOCOL_MANGLING;
+
+	if (i2c_dev->hw->has_continue_xfer_support)
+		ret |= I2C_FUNC_NOSTART;
+	return ret;
 }
 
 static const struct i2c_algorithm tegra_i2c_algo = {
@@ -591,13 +632,32 @@ static const struct i2c_algorithm tegra_i2c_algo = {
 	.functionality	= tegra_i2c_func,
 };
 
+static const struct tegra_i2c_hw_feature tegra20_i2c_hw = {
+	.has_continue_xfer_support = false,
+};
+
+static const struct tegra_i2c_hw_feature tegra30_i2c_hw = {
+	.has_continue_xfer_support = true,
+};
+
+#if defined(CONFIG_OF)
+/* Match table for of_platform binding */
+static const struct of_device_id tegra_i2c_of_match[] __devinitconst = {
+	{ .compatible = "nvidia,tegra30-i2c", .data = &tegra30_i2c_hw, },
+	{ .compatible = "nvidia,tegra20-i2c", .data = &tegra20_i2c_hw, },
+	{ .compatible = "nvidia,tegra20-i2c-dvc", .data = &tegra20_i2c_hw, },
+	{},
+};
+MODULE_DEVICE_TABLE(of, tegra_i2c_of_match);
+#endif
+
 static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 {
 	struct tegra_i2c_dev *i2c_dev;
 	struct tegra_i2c_platform_data *pdata = pdev->dev.platform_data;
 	struct resource *res;
-	struct clk *clk;
-	struct clk *i2c_clk;
+	struct clk *div_clk;
+	struct clk *fast_clk;
 	const unsigned int *prop;
 	void __iomem *base;
 	int irq;
@@ -622,16 +682,16 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 	}
 	irq = res->start;
 
-	clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(clk)) {
+	div_clk = devm_clk_get(&pdev->dev, "div-clk");
+	if (IS_ERR(div_clk)) {
 		dev_err(&pdev->dev, "missing controller clock");
-		return PTR_ERR(clk);
+		return PTR_ERR(div_clk);
 	}
 
-	i2c_clk = devm_clk_get(&pdev->dev, "i2c");
-	if (IS_ERR(i2c_clk)) {
+	fast_clk = devm_clk_get(&pdev->dev, "fast-clk");
+	if (IS_ERR(fast_clk)) {
 		dev_err(&pdev->dev, "missing bus clock");
-		return PTR_ERR(i2c_clk);
+		return PTR_ERR(fast_clk);
 	}
 
 	i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL);
@@ -641,8 +701,8 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 	}
 
 	i2c_dev->base = base;
-	i2c_dev->clk = clk;
-	i2c_dev->i2c_clk = i2c_clk;
+	i2c_dev->div_clk = div_clk;
+	i2c_dev->fast_clk = fast_clk;
 	i2c_dev->adapter.algo = &tegra_i2c_algo;
 	i2c_dev->irq = irq;
 	i2c_dev->cont_id = pdev->id;
@@ -659,11 +719,18 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 			i2c_dev->bus_clk_rate = be32_to_cpup(prop);
 	}
 
-	if (pdev->dev.of_node)
+	i2c_dev->hw = &tegra20_i2c_hw;
+
+	if (pdev->dev.of_node) {
+		const struct of_device_id *match;
+		match = of_match_device(of_match_ptr(tegra_i2c_of_match),
+						&pdev->dev);
+		i2c_dev->hw = match->data;
 		i2c_dev->is_dvc = of_device_is_compatible(pdev->dev.of_node,
 						"nvidia,tegra20-i2c-dvc");
-	else if (pdev->id == 3)
+	} else if (pdev->id == 3) {
 		i2c_dev->is_dvc = 1;
+	}
 	init_completion(&i2c_dev->msg_complete);
 
 	platform_set_drvdata(pdev, i2c_dev);
@@ -681,8 +748,6 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	clk_prepare_enable(i2c_dev->i2c_clk);
-
 	i2c_set_adapdata(&i2c_dev->adapter, i2c_dev);
 	i2c_dev->adapter.owner = THIS_MODULE;
 	i2c_dev->adapter.class = I2C_CLASS_HWMON;
@@ -696,7 +761,6 @@ static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 	ret = i2c_add_numbered_adapter(&i2c_dev->adapter);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to add I2C adapter\n");
-		clk_disable_unprepare(i2c_dev->i2c_clk);
 		return ret;
 	}
 
@@ -712,7 +776,7 @@ static int __devexit tegra_i2c_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int tegra_i2c_suspend(struct device *dev)
 {
 	struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev);
@@ -751,16 +815,6 @@ static SIMPLE_DEV_PM_OPS(tegra_i2c_pm, tegra_i2c_suspend, tegra_i2c_resume);
 #define TEGRA_I2C_PM	NULL
 #endif
 
-#if defined(CONFIG_OF)
-/* Match table for of_platform binding */
-static const struct of_device_id tegra_i2c_of_match[] __devinitconst = {
-	{ .compatible = "nvidia,tegra20-i2c", },
-	{ .compatible = "nvidia,tegra20-i2c-dvc", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, tegra_i2c_of_match);
-#endif
-
 static struct platform_driver tegra_i2c_driver = {
 	.probe   = tegra_i2c_probe,
 	.remove  = __devexit_p(tegra_i2c_remove),
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 2efa56c5ff2..2091ae8f539 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -637,6 +637,22 @@ static void i2c_adapter_dev_release(struct device *dev)
 }
 
 /*
+ * This function is only needed for mutex_lock_nested, so it is never
+ * called unless locking correctness checking is enabled. Thus we
+ * make it inline to avoid a compiler warning. That's what gcc ends up
+ * doing anyway.
+ */
+static inline unsigned int i2c_adapter_depth(struct i2c_adapter *adapter)
+{
+	unsigned int depth = 0;
+
+	while ((adapter = i2c_parent_is_i2c_adapter(adapter)))
+		depth++;
+
+	return depth;
+}
+
+/*
  * Let users instantiate I2C devices through sysfs. This can be used when
  * platform initialization code doesn't contain the proper data for
  * whatever reason. Also useful for drivers that do device detection and
@@ -726,7 +742,8 @@ i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr,
 
 	/* Make sure the device was added through sysfs */
 	res = -ENOENT;
-	mutex_lock(&adap->userspace_clients_lock);
+	mutex_lock_nested(&adap->userspace_clients_lock,
+			  i2c_adapter_depth(adap));
 	list_for_each_entry_safe(client, next, &adap->userspace_clients,
 				 detected) {
 		if (client->addr == addr) {
@@ -1073,7 +1090,8 @@ int i2c_del_adapter(struct i2c_adapter *adap)
 		return res;
 
 	/* Remove devices instantiated from sysfs */
-	mutex_lock(&adap->userspace_clients_lock);
+	mutex_lock_nested(&adap->userspace_clients_lock,
+			  i2c_adapter_depth(adap));
 	list_for_each_entry_safe(client, next, &adap->userspace_clients,
 				 detected) {
 		dev_dbg(&adap->dev, "Removing %s at 0x%x\n", client->name,
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 92406097efe..8d1e32d7cd9 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -4,7 +4,7 @@
 
 int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
-	ide_drive_t *drive = dev_get_drvdata(dev);
+	ide_drive_t *drive = to_ide_device(dev);
 	ide_drive_t *pair = ide_get_pair_dev(drive);
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq;
@@ -40,7 +40,7 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 
 int generic_ide_resume(struct device *dev)
 {
-	ide_drive_t *drive = dev_get_drvdata(dev);
+	ide_drive_t *drive = to_ide_device(dev);
 	ide_drive_t *pair = ide_get_pair_dev(drive);
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq;
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index f559088869f..e8726177d10 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -606,8 +606,9 @@ static int __init intel_idle_init(void)
 	intel_idle_cpuidle_driver_init();
 	retval = cpuidle_register_driver(&intel_idle_driver);
 	if (retval) {
+		struct cpuidle_driver *drv = cpuidle_get_driver();
 		printk(KERN_DEBUG PREFIX "intel_idle yielding to %s",
-			cpuidle_get_driver()->name);
+			drv ? drv->name : "none");
 		return retval;
 	}
 
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index d4984c8be97..6e3f143fc71 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -1,5 +1,5 @@
 #
-# Industrial I/O subsytem configuration
+# Industrial I/O subsystem configuration
 #
 
 menuconfig IIO
@@ -54,10 +54,15 @@ config IIO_CONSUMERS_PER_TRIGGER
 	This value controls the maximum number of consumers that a
 	given trigger may handle. Default is 2.
 
+source "drivers/iio/accel/Kconfig"
 source "drivers/iio/adc/Kconfig"
 source "drivers/iio/amplifiers/Kconfig"
 source "drivers/iio/light/Kconfig"
 source "drivers/iio/frequency/Kconfig"
 source "drivers/iio/dac/Kconfig"
+source "drivers/iio/common/Kconfig"
+source "drivers/iio/gyro/Kconfig"
+source "drivers/iio/light/Kconfig"
+source "drivers/iio/magnetometer/Kconfig"
 
 endif # IIO
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index 34309abb797..f7fa3c0867b 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -10,8 +10,13 @@ industrialio-$(CONFIG_IIO_TRIGGER) += industrialio-trigger.o
 obj-$(CONFIG_IIO_TRIGGERED_BUFFER) += industrialio-triggered-buffer.o
 obj-$(CONFIG_IIO_KFIFO_BUF) += kfifo_buf.o
 
+obj-y += accel/
 obj-y += adc/
 obj-y += amplifiers/
 obj-y += light/
 obj-y += frequency/
 obj-y += dac/
+obj-y += common/
+obj-y += gyro/
+obj-y += light/
+obj-y += magnetometer/
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
new file mode 100644
index 00000000000..b2510c4d9a5
--- /dev/null
+++ b/drivers/iio/accel/Kconfig
@@ -0,0 +1,16 @@
+#
+# Accelerometer drivers
+#
+menu "Accelerometers"
+
+config HID_SENSOR_ACCEL_3D
+	depends on HID_SENSOR_HUB
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	select HID_SENSOR_IIO_COMMON
+	tristate "HID Acelerometers 3D"
+	help
+	  Say yes here to build support for the HID SENSOR
+	  accelerometers 3D.
+
+endmenu
diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
new file mode 100644
index 00000000000..5bc6855a973
--- /dev/null
+++ b/drivers/iio/accel/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for industrial I/O accelerometer drivers
+#
+
+obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
new file mode 100644
index 00000000000..314a4057879
--- /dev/null
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -0,0 +1,418 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include "../common/hid-sensors/hid-sensor-attributes.h"
+#include "../common/hid-sensors/hid-sensor-trigger.h"
+
+/*Format: HID-SENSOR-usage_id_in_hex*/
+/*Usage ID from spec for Accelerometer-3D: 0x200073*/
+#define DRIVER_NAME "HID-SENSOR-200073"
+
+enum accel_3d_channel {
+	CHANNEL_SCAN_INDEX_X,
+	CHANNEL_SCAN_INDEX_Y,
+	CHANNEL_SCAN_INDEX_Z,
+	ACCEL_3D_CHANNEL_MAX,
+};
+
+struct accel_3d_state {
+	struct hid_sensor_hub_callbacks callbacks;
+	struct hid_sensor_iio_common common_attributes;
+	struct hid_sensor_hub_attribute_info accel[ACCEL_3D_CHANNEL_MAX];
+	u32 accel_val[ACCEL_3D_CHANNEL_MAX];
+};
+
+static const u32 accel_3d_addresses[ACCEL_3D_CHANNEL_MAX] = {
+	HID_USAGE_SENSOR_ACCEL_X_AXIS,
+	HID_USAGE_SENSOR_ACCEL_Y_AXIS,
+	HID_USAGE_SENSOR_ACCEL_Z_AXIS
+};
+
+/* Channel definitions */
+static const struct iio_chan_spec accel_3d_channels[] = {
+	{
+		.type = IIO_ACCEL,
+		.modified = 1,
+		.channel2 = IIO_MOD_X,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_X,
+	}, {
+		.type = IIO_ACCEL,
+		.modified = 1,
+		.channel2 = IIO_MOD_Y,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_Y,
+	}, {
+		.type = IIO_ACCEL,
+		.modified = 1,
+		.channel2 = IIO_MOD_Z,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_Z,
+	}
+};
+
+/* Adjust channel real bits based on report descriptor */
+static void accel_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels,
+						int channel, int size)
+{
+	channels[channel].scan_type.sign = 's';
+	/* Real storage bits will change based on the report desc. */
+	channels[channel].scan_type.realbits = size * 8;
+	/* Maximum size of a sample to capture is u32 */
+	channels[channel].scan_type.storagebits = sizeof(u32) * 8;
+}
+
+/* Channel read_raw handler */
+static int accel_3d_read_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int *val, int *val2,
+			      long mask)
+{
+	struct accel_3d_state *accel_state = iio_priv(indio_dev);
+	int report_id = -1;
+	u32 address;
+	int ret;
+	int ret_type;
+
+	*val = 0;
+	*val2 = 0;
+	switch (mask) {
+	case 0:
+		report_id = accel_state->accel[chan->scan_index].report_id;
+		address = accel_3d_addresses[chan->scan_index];
+		if (report_id >= 0)
+			*val = sensor_hub_input_attr_get_raw_value(
+				accel_state->common_attributes.hsdev,
+				HID_USAGE_SENSOR_ACCEL_3D, address,
+				report_id);
+		else {
+			*val = 0;
+			return -EINVAL;
+		}
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = accel_state->accel[CHANNEL_SCAN_INDEX_X].units;
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = hid_sensor_convert_exponent(
+			accel_state->accel[CHANNEL_SCAN_INDEX_X].unit_expo);
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_read_samp_freq_value(
+			&accel_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_read_raw_hyst_value(
+			&accel_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret_type = -EINVAL;
+		break;
+	}
+
+	return ret_type;
+}
+
+/* Channel write_raw handler */
+static int accel_3d_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct accel_3d_state *accel_state = iio_priv(indio_dev);
+	int ret = 0;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_write_samp_freq_value(
+				&accel_state->common_attributes, val, val2);
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_write_raw_hyst_value(
+				&accel_state->common_attributes, val, val2);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int accel_3d_write_raw_get_fmt(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       long mask)
+{
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static const struct iio_info accel_3d_info = {
+	.driver_module = THIS_MODULE,
+	.read_raw = &accel_3d_read_raw,
+	.write_raw = &accel_3d_write_raw,
+	.write_raw_get_fmt = &accel_3d_write_raw_get_fmt,
+};
+
+/* Function to push data to buffer */
+static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+{
+	struct iio_buffer *buffer = indio_dev->buffer;
+	int datum_sz;
+
+	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
+	if (!buffer) {
+		dev_err(&indio_dev->dev, "Buffer == NULL\n");
+		return;
+	}
+	datum_sz = buffer->access->get_bytes_per_datum(buffer);
+	if (len > datum_sz) {
+		dev_err(&indio_dev->dev, "Datum size mismatch %d:%d\n", len,
+				datum_sz);
+		return;
+	}
+	iio_push_to_buffer(buffer, (u8 *)data);
+}
+
+/* Callback handler to send event after all samples are received and captured */
+static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct accel_3d_state *accel_state = iio_priv(indio_dev);
+
+	dev_dbg(&indio_dev->dev, "accel_3d_proc_event [%d]\n",
+				accel_state->common_attributes.data_ready);
+	if (accel_state->common_attributes.data_ready)
+		hid_sensor_push_data(indio_dev,
+				(u8 *)accel_state->accel_val,
+				sizeof(accel_state->accel_val));
+
+	return 0;
+}
+
+/* Capture samples in local storage */
+static int accel_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				size_t raw_len, char *raw_data,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct accel_3d_state *accel_state = iio_priv(indio_dev);
+	int offset;
+	int ret = -EINVAL;
+
+	switch (usage_id) {
+	case HID_USAGE_SENSOR_ACCEL_X_AXIS:
+	case HID_USAGE_SENSOR_ACCEL_Y_AXIS:
+	case HID_USAGE_SENSOR_ACCEL_Z_AXIS:
+		offset = usage_id - HID_USAGE_SENSOR_ACCEL_X_AXIS;
+		accel_state->accel_val[CHANNEL_SCAN_INDEX_X + offset] =
+						*(u32 *)raw_data;
+		ret = 0;
+	break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+/* Parse report which is specific to an usage id*/
+static int accel_3d_parse_report(struct platform_device *pdev,
+				struct hid_sensor_hub_device *hsdev,
+				struct iio_chan_spec *channels,
+				unsigned usage_id,
+				struct accel_3d_state *st)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i <= CHANNEL_SCAN_INDEX_Z; ++i) {
+		ret = sensor_hub_input_get_attribute_info(hsdev,
+				HID_INPUT_REPORT,
+				usage_id,
+				HID_USAGE_SENSOR_ACCEL_X_AXIS + i,
+				&st->accel[CHANNEL_SCAN_INDEX_X + i]);
+		if (ret < 0)
+			break;
+		accel_3d_adjust_channel_bit_mask(channels,
+				CHANNEL_SCAN_INDEX_X + i,
+				st->accel[CHANNEL_SCAN_INDEX_X + i].size);
+	}
+	dev_dbg(&pdev->dev, "accel_3d %x:%x, %x:%x, %x:%x\n",
+			st->accel[0].index,
+			st->accel[0].report_id,
+			st->accel[1].index, st->accel[1].report_id,
+			st->accel[2].index, st->accel[2].report_id);
+
+	return ret;
+}
+
+/* Function to initialize the processing for usage id */
+static int __devinit hid_accel_3d_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	static const char *name = "accel_3d";
+	struct iio_dev *indio_dev;
+	struct accel_3d_state *accel_state;
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_chan_spec *channels;
+
+	indio_dev = iio_device_alloc(sizeof(struct accel_3d_state));
+	if (indio_dev == NULL) {
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+	platform_set_drvdata(pdev, indio_dev);
+
+	accel_state = iio_priv(indio_dev);
+	accel_state->common_attributes.hsdev = hsdev;
+	accel_state->common_attributes.pdev = pdev;
+
+	ret = hid_sensor_parse_common_attributes(hsdev,
+					HID_USAGE_SENSOR_ACCEL_3D,
+					&accel_state->common_attributes);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup common attributes\n");
+		goto error_free_dev;
+	}
+
+	channels = kmemdup(accel_3d_channels,
+					sizeof(accel_3d_channels),
+					GFP_KERNEL);
+	if (!channels) {
+		dev_err(&pdev->dev, "failed to duplicate channels\n");
+		goto error_free_dev;
+	}
+
+	ret = accel_3d_parse_report(pdev, hsdev, channels,
+					HID_USAGE_SENSOR_ACCEL_3D, accel_state);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup attributes\n");
+		goto error_free_dev_mem;
+	}
+
+	indio_dev->channels = channels;
+	indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &accel_3d_info;
+	indio_dev->name = name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+		NULL, NULL);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
+		goto error_free_dev_mem;
+	}
+	accel_state->common_attributes.data_ready = false;
+	ret = hid_sensor_setup_trigger(indio_dev, name,
+					&accel_state->common_attributes);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "trigger setup failed\n");
+		goto error_unreg_buffer_funcs;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "device register failed\n");
+		goto error_remove_trigger;
+	}
+
+	accel_state->callbacks.send_event = accel_3d_proc_event;
+	accel_state->callbacks.capture_sample = accel_3d_capture_sample;
+	accel_state->callbacks.pdev = pdev;
+	ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_ACCEL_3D,
+					&accel_state->callbacks);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "callback reg failed\n");
+		goto error_iio_unreg;
+	}
+
+	return ret;
+
+error_iio_unreg:
+	iio_device_unregister(indio_dev);
+error_remove_trigger:
+	hid_sensor_remove_trigger(indio_dev);
+error_unreg_buffer_funcs:
+	iio_triggered_buffer_cleanup(indio_dev);
+error_free_dev_mem:
+	kfree(indio_dev->channels);
+error_free_dev:
+	iio_device_free(indio_dev);
+error_ret:
+	return ret;
+}
+
+/* Function to deinitialize the processing for usage id */
+static int __devinit hid_accel_3d_remove(struct platform_device *pdev)
+{
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+
+	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ACCEL_3D);
+	iio_device_unregister(indio_dev);
+	hid_sensor_remove_trigger(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	kfree(indio_dev->channels);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static struct platform_driver hid_accel_3d_platform_driver = {
+	.driver = {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= hid_accel_3d_probe,
+	.remove		= hid_accel_3d_remove,
+};
+module_platform_driver(hid_accel_3d_platform_driver);
+
+MODULE_DESCRIPTION("HID Sensor Accel 3D");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 8a78b4f3ef5..49275812033 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -3,6 +3,11 @@
 #
 menu "Analog to digital converters"
 
+config AD_SIGMA_DELTA
+	tristate
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+
 config AD7266
 	tristate "Analog Devices AD7265/AD7266 ADC driver"
 	depends on SPI_MASTER
@@ -13,6 +18,33 @@ config AD7266
 	  Say yes here to build support for Analog Devices AD7265 and AD7266
 	  ADCs.
 
+config AD7791
+	tristate "Analog Devices AD7791 ADC driver"
+	depends on SPI
+	select AD_SIGMA_DELTA
+	help
+	  Say yes here to build support for Analog Devices AD7787, AD7788, AD7789,
+	  AD7790 and AD7791 SPI analog to digital converters (ADC). If unsure, say
+	  N (but it is safe to say "Y").
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called ad7791.
+
+config AD7476
+	tristate "Analog Devices AD7476 and similar 1-channel ADCs driver"
+	depends on SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  Say yes here to build support for Analog Devices AD7273, AD7274, AD7276,
+	  AD7277, AD7278, AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468,
+	  AD7495, AD7910, AD7920, AD7920 SPI analog to digital converters (ADC).
+
+	  If unsure, say N (but it's safe to say "Y").
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad7476.
+
 config AT91_ADC
 	tristate "Atmel AT91 ADC"
 	depends on ARCH_AT91
@@ -22,4 +54,10 @@ config AT91_ADC
 	help
 	  Say yes here to build support for Atmel AT91 ADC.
 
+config LP8788_ADC
+	bool "LP8788 ADC driver"
+	depends on MFD_LP8788
+	help
+	  Say yes here to build support for TI LP8788 ADC.
+
 endmenu
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 52eec254c38..900995d5e17 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -2,5 +2,9 @@
 # Makefile for IIO ADC drivers
 #
 
+obj-$(CONFIG_AD_SIGMA_DELTA) += ad_sigma_delta.o
 obj-$(CONFIG_AD7266) += ad7266.o
+obj-$(CONFIG_AD7476) += ad7476.o
+obj-$(CONFIG_AD7791) += ad7791.o
 obj-$(CONFIG_AT91_ADC) += at91_adc.o
+obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 5c3f1ba5a06..b11f214779a 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -99,7 +99,7 @@ static irqreturn_t ad7266_trigger_handler(int irq, void *p)
 	if (ret == 0) {
 		if (indio_dev->scan_timestamp)
 			((s64 *)st->data)[1] = pf->timestamp;
-		iio_push_to_buffer(buffer, (u8 *)st->data, pf->timestamp);
+		iio_push_to_buffer(buffer, (u8 *)st->data);
 	}
 
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/staging/iio/adc/ad7476_core.c b/drivers/iio/adc/ad7476.c
index 4d30a798ba0..7f2f45a0a48 100644
--- a/drivers/staging/iio/adc/ad7476_core.c
+++ b/drivers/iio/adc/ad7476.c
@@ -18,8 +18,76 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
 
-#include "ad7476.h"
+#define RES_MASK(bits)	((1 << (bits)) - 1)
+
+struct ad7476_state;
+
+struct ad7476_chip_info {
+	unsigned int			int_vref_uv;
+	struct iio_chan_spec		channel[2];
+	void (*reset)(struct ad7476_state *);
+};
+
+struct ad7476_state {
+	struct spi_device		*spi;
+	const struct ad7476_chip_info	*chip_info;
+	struct regulator		*reg;
+	struct spi_transfer		xfer;
+	struct spi_message		msg;
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 * Make the buffer large enough for one 16 bit sample and one 64 bit
+	 * aligned 64 bit timestamp.
+	 */
+	unsigned char data[ALIGN(2, sizeof(s64)) + sizeof(s64)]
+			____cacheline_aligned;
+};
+
+enum ad7476_supported_device_ids {
+	ID_AD7091R,
+	ID_AD7276,
+	ID_AD7277,
+	ID_AD7278,
+	ID_AD7466,
+	ID_AD7467,
+	ID_AD7468,
+	ID_AD7495,
+	ID_AD7940,
+};
+
+static irqreturn_t ad7476_trigger_handler(int irq, void  *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct ad7476_state *st = iio_priv(indio_dev);
+	s64 time_ns;
+	int b_sent;
+
+	b_sent = spi_sync(st->spi, &st->msg);
+	if (b_sent < 0)
+		goto done;
+
+	time_ns = iio_get_time_ns();
+
+	if (indio_dev->scan_timestamp)
+		((s64 *)st->data)[1] = time_ns;
+
+	iio_push_to_buffer(indio_dev->buffer, st->data);
+done:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static void ad7091_reset(struct ad7476_state *st)
+{
+	/* Any transfers with 8 scl cycles will reset the device */
+	spi_read(st->spi, st->data, 1);
+}
 
 static int ad7476_scan_direct(struct ad7476_state *st)
 {
@@ -29,7 +97,7 @@ static int ad7476_scan_direct(struct ad7476_state *st)
 	if (ret)
 		return ret;
 
-	return (st->data[0] << 8) | st->data[1];
+	return be16_to_cpup((__be16 *)st->data);
 }
 
 static int ad7476_read_raw(struct iio_dev *indio_dev,
@@ -40,7 +108,7 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 {
 	int ret;
 	struct ad7476_state *st = iio_priv(indio_dev);
-	unsigned int scale_uv;
+	int scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
@@ -57,62 +125,80 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 			RES_MASK(st->chip_info->channel[0].scan_type.realbits);
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->int_vref_mv * 1000)
-			>> st->chip_info->channel[0].scan_type.realbits;
-		*val =  scale_uv/1000;
-		*val2 = (scale_uv%1000)*1000;
+		if (!st->chip_info->int_vref_uv) {
+			scale_uv = regulator_get_voltage(st->reg);
+			if (scale_uv < 0)
+				return scale_uv;
+		} else {
+			scale_uv = st->chip_info->int_vref_uv;
+		}
+		scale_uv >>= chan->scan_type.realbits;
+		*val =  scale_uv / 1000;
+		*val2 = (scale_uv % 1000) * 1000;
 		return IIO_VAL_INT_PLUS_MICRO;
 	}
 	return -EINVAL;
 }
 
-#define AD7476_CHAN(bits)					\
+#define _AD7476_CHAN(bits, _shift, _info_mask)			\
 	{							\
 	.type = IIO_VOLTAGE,					\
 	.indexed = 1,						\
-	.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |		\
+	.info_mask = _info_mask |				\
 	IIO_CHAN_INFO_SCALE_SHARED_BIT,				\
 	.scan_type = {						\
 		.sign = 'u',					\
-		.realbits = bits,				\
+		.realbits = (bits),				\
 		.storagebits = 16,				\
-		.shift = 12 - bits,				\
+		.shift = (_shift),				\
+		.endianness = IIO_BE,				\
 	},							\
 }
 
+#define AD7476_CHAN(bits) _AD7476_CHAN((bits), 13 - (bits), \
+		IIO_CHAN_INFO_RAW_SEPARATE_BIT)
+#define AD7940_CHAN(bits) _AD7476_CHAN((bits), 15 - (bits), \
+		IIO_CHAN_INFO_RAW_SEPARATE_BIT)
+#define AD7091R_CHAN(bits) _AD7476_CHAN((bits), 16 - (bits), 0)
+
 static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
-	[ID_AD7466] = {
-		.channel[0] = AD7476_CHAN(12),
+	[ID_AD7091R] = {
+		.channel[0] = AD7091R_CHAN(12),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
+		.reset = ad7091_reset,
 	},
-	[ID_AD7467] = {
-		.channel[0] = AD7476_CHAN(10),
+	[ID_AD7276] = {
+		.channel[0] = AD7940_CHAN(12),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
-	[ID_AD7468] = {
-		.channel[0] = AD7476_CHAN(8),
+	[ID_AD7277] = {
+		.channel[0] = AD7940_CHAN(10),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
-	[ID_AD7475] = {
-		.channel[0] = AD7476_CHAN(12),
+	[ID_AD7278] = {
+		.channel[0] = AD7940_CHAN(8),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
-	[ID_AD7476] = {
+	[ID_AD7466] = {
 		.channel[0] = AD7476_CHAN(12),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
-	[ID_AD7477] = {
+	[ID_AD7467] = {
 		.channel[0] = AD7476_CHAN(10),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
-	[ID_AD7478] = {
+	[ID_AD7468] = {
 		.channel[0] = AD7476_CHAN(8),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7495] = {
 		.channel[0] = AD7476_CHAN(12),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
-		.int_vref_mv = 2500,
+		.int_vref_uv = 2500000,
+	},
+	[ID_AD7940] = {
+		.channel[0] = AD7940_CHAN(14),
+		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 };
 
@@ -123,10 +209,9 @@ static const struct iio_info ad7476_info = {
 
 static int __devinit ad7476_probe(struct spi_device *spi)
 {
-	struct ad7476_platform_data *pdata = spi->dev.platform_data;
 	struct ad7476_state *st;
 	struct iio_dev *indio_dev;
-	int ret, voltage_uv = 0;
+	int ret;
 
 	indio_dev = iio_device_alloc(sizeof(*st));
 	if (indio_dev == NULL) {
@@ -134,25 +219,18 @@ static int __devinit ad7476_probe(struct spi_device *spi)
 		goto error_ret;
 	}
 	st = iio_priv(indio_dev);
-	st->reg = regulator_get(&spi->dev, "vcc");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			goto error_put_reg;
-
-		voltage_uv = regulator_get_voltage(st->reg);
-	}
 	st->chip_info =
 		&ad7476_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
-	if (st->chip_info->int_vref_mv)
-		st->int_vref_mv = st->chip_info->int_vref_mv;
-	else if (pdata && pdata->vref_mv)
-		st->int_vref_mv = pdata->vref_mv;
-	else if (voltage_uv)
-		st->int_vref_mv = voltage_uv / 1000;
-	else
-		dev_warn(&spi->dev, "reference voltage unspecified\n");
+	st->reg = regulator_get(&spi->dev, "vcc");
+	if (IS_ERR(st->reg)) {
+		ret = PTR_ERR(st->reg);
+		goto error_free_dev;
+	}
+
+	ret = regulator_enable(st->reg);
+	if (ret)
+		goto error_put_reg;
 
 	spi_set_drvdata(spi, indio_dev);
 
@@ -173,57 +251,67 @@ static int __devinit ad7476_probe(struct spi_device *spi)
 	spi_message_init(&st->msg);
 	spi_message_add_tail(&st->xfer, &st->msg);
 
-	ret = ad7476_register_ring_funcs_and_init(indio_dev);
+	ret = iio_triggered_buffer_setup(indio_dev, NULL,
+			&ad7476_trigger_handler, NULL);
 	if (ret)
 		goto error_disable_reg;
 
+	if (st->chip_info->reset)
+		st->chip_info->reset(st);
+
 	ret = iio_device_register(indio_dev);
 	if (ret)
 		goto error_ring_unregister;
 	return 0;
 
 error_ring_unregister:
-	ad7476_ring_cleanup(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
 error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 error_put_reg:
-	if (!IS_ERR(st->reg))
-		regulator_put(st->reg);
+	regulator_put(st->reg);
+error_free_dev:
 	iio_device_free(indio_dev);
 
 error_ret:
 	return ret;
 }
 
-static int ad7476_remove(struct spi_device *spi)
+static int __devexit ad7476_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct ad7476_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	ad7476_ring_cleanup(indio_dev);
-	if (!IS_ERR(st->reg)) {
-		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
+	iio_triggered_buffer_cleanup(indio_dev);
+	regulator_disable(st->reg);
+	regulator_put(st->reg);
 	iio_device_free(indio_dev);
 
 	return 0;
 }
 
 static const struct spi_device_id ad7476_id[] = {
+	{"ad7091r", ID_AD7091R},
+	{"ad7273", ID_AD7277},
+	{"ad7274", ID_AD7276},
+	{"ad7276", ID_AD7276},
+	{"ad7277", ID_AD7277},
+	{"ad7278", ID_AD7278},
 	{"ad7466", ID_AD7466},
 	{"ad7467", ID_AD7467},
 	{"ad7468", ID_AD7468},
-	{"ad7475", ID_AD7475},
-	{"ad7476", ID_AD7476},
-	{"ad7476a", ID_AD7476},
-	{"ad7477", ID_AD7477},
-	{"ad7477a", ID_AD7477},
-	{"ad7478", ID_AD7478},
-	{"ad7478a", ID_AD7478},
+	{"ad7475", ID_AD7466},
+	{"ad7476", ID_AD7466},
+	{"ad7476a", ID_AD7466},
+	{"ad7477", ID_AD7467},
+	{"ad7477a", ID_AD7467},
+	{"ad7478", ID_AD7468},
+	{"ad7478a", ID_AD7468},
 	{"ad7495", ID_AD7495},
+	{"ad7910", ID_AD7467},
+	{"ad7920", ID_AD7466},
+	{"ad7940", ID_AD7940},
 	{}
 };
 MODULE_DEVICE_TABLE(spi, ad7476_id);
@@ -240,5 +328,5 @@ static struct spi_driver ad7476_driver = {
 module_spi_driver(ad7476_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7475/6/7/8(A) AD7466/7/8 ADC");
+MODULE_DESCRIPTION("Analog Devices AD7476 and similar 1-channel ADCs");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
new file mode 100644
index 00000000000..e93740843b2
--- /dev/null
+++ b/drivers/iio/adc/ad7791.c
@@ -0,0 +1,460 @@
+/*
+ * AD7787/AD7788/AD7789/AD7790/AD7791 SPI ADC driver
+ *
+ * Copyright 2012 Analog Devices Inc.
+ *  Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/spi/spi.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/adc/ad_sigma_delta.h>
+
+#include <linux/platform_data/ad7791.h>
+
+#define AD7791_REG_COMM			0x0 /* For writes */
+#define AD7791_REG_STATUS		0x0 /* For reads */
+#define AD7791_REG_MODE			0x1
+#define AD7791_REG_FILTER		0x2
+#define AD7791_REG_DATA			0x3
+
+#define AD7791_MODE_CONTINUOUS		0x00
+#define AD7791_MODE_SINGLE		0x02
+#define AD7791_MODE_POWERDOWN		0x03
+
+#define AD7791_CH_AIN1P_AIN1N		0x00
+#define AD7791_CH_AIN2			0x01
+#define AD7791_CH_AIN1N_AIN1N		0x02
+#define AD7791_CH_AVDD_MONITOR		0x03
+
+#define AD7791_FILTER_CLK_DIV_1		(0x0 << 4)
+#define AD7791_FILTER_CLK_DIV_2		(0x1 << 4)
+#define AD7791_FILTER_CLK_DIV_4		(0x2 << 4)
+#define AD7791_FILTER_CLK_DIV_8		(0x3 << 4)
+#define AD7791_FILTER_CLK_MASK		(0x3 << 4)
+#define AD7791_FILTER_RATE_120		0x0
+#define AD7791_FILTER_RATE_100		0x1
+#define AD7791_FILTER_RATE_33_3		0x2
+#define AD7791_FILTER_RATE_20		0x3
+#define AD7791_FILTER_RATE_16_6		0x4
+#define AD7791_FILTER_RATE_16_7		0x5
+#define AD7791_FILTER_RATE_13_3		0x6
+#define AD7791_FILTER_RATE_9_5		0x7
+#define AD7791_FILTER_RATE_MASK		0x7
+
+#define AD7791_MODE_BUFFER		BIT(1)
+#define AD7791_MODE_UNIPOLAR		BIT(2)
+#define AD7791_MODE_BURNOUT		BIT(3)
+#define AD7791_MODE_SEL_MASK		(0x3 << 6)
+#define AD7791_MODE_SEL(x)		((x) << 6)
+
+#define DECLARE_AD7787_CHANNELS(name, bits, storagebits) \
+const struct iio_chan_spec name[] = { \
+	AD_SD_DIFF_CHANNEL(0, 0, 0, AD7791_CH_AIN1P_AIN1N, \
+		(bits), (storagebits), 0), \
+	AD_SD_CHANNEL(1, 1, AD7791_CH_AIN2, (bits), (storagebits), 0), \
+	AD_SD_SHORTED_CHANNEL(2, 0, AD7791_CH_AIN1N_AIN1N, \
+		(bits), (storagebits), 0), \
+	AD_SD_SUPPLY_CHANNEL(3, 2, AD7791_CH_AVDD_MONITOR,  \
+		(bits), (storagebits), 0), \
+	IIO_CHAN_SOFT_TIMESTAMP(4), \
+}
+
+#define DECLARE_AD7791_CHANNELS(name, bits, storagebits) \
+const struct iio_chan_spec name[] = { \
+	AD_SD_DIFF_CHANNEL(0, 0, 0, AD7791_CH_AIN1P_AIN1N, \
+		(bits), (storagebits), 0), \
+	AD_SD_SHORTED_CHANNEL(1, 0, AD7791_CH_AIN1N_AIN1N, \
+		(bits), (storagebits), 0), \
+	AD_SD_SUPPLY_CHANNEL(2, 1, AD7791_CH_AVDD_MONITOR, \
+		(bits), (storagebits), 0), \
+	IIO_CHAN_SOFT_TIMESTAMP(3), \
+}
+
+static DECLARE_AD7787_CHANNELS(ad7787_channels, 24, 32);
+static DECLARE_AD7791_CHANNELS(ad7790_channels, 16, 16);
+static DECLARE_AD7791_CHANNELS(ad7791_channels, 24, 32);
+
+enum {
+	AD7787,
+	AD7788,
+	AD7789,
+	AD7790,
+	AD7791,
+};
+
+enum ad7791_chip_info_flags {
+	AD7791_FLAG_HAS_FILTER		= (1 << 0),
+	AD7791_FLAG_HAS_BUFFER		= (1 << 1),
+	AD7791_FLAG_HAS_UNIPOLAR	= (1 << 2),
+	AD7791_FLAG_HAS_BURNOUT		= (1 << 3),
+};
+
+struct ad7791_chip_info {
+	const struct iio_chan_spec *channels;
+	unsigned int num_channels;
+	enum ad7791_chip_info_flags flags;
+};
+
+static const struct ad7791_chip_info ad7791_chip_infos[] = {
+	[AD7787] = {
+		.channels = ad7787_channels,
+		.num_channels = ARRAY_SIZE(ad7787_channels),
+		.flags = AD7791_FLAG_HAS_FILTER | AD7791_FLAG_HAS_BUFFER |
+			AD7791_FLAG_HAS_UNIPOLAR | AD7791_FLAG_HAS_BURNOUT,
+	},
+	[AD7788] = {
+		.channels = ad7790_channels,
+		.num_channels = ARRAY_SIZE(ad7790_channels),
+		.flags = AD7791_FLAG_HAS_UNIPOLAR,
+	},
+	[AD7789] = {
+		.channels = ad7791_channels,
+		.num_channels = ARRAY_SIZE(ad7791_channels),
+		.flags = AD7791_FLAG_HAS_UNIPOLAR,
+	},
+	[AD7790] = {
+		.channels = ad7790_channels,
+		.num_channels = ARRAY_SIZE(ad7790_channels),
+		.flags = AD7791_FLAG_HAS_FILTER | AD7791_FLAG_HAS_BUFFER |
+			AD7791_FLAG_HAS_BURNOUT,
+	},
+	[AD7791] = {
+		.channels = ad7791_channels,
+		.num_channels = ARRAY_SIZE(ad7791_channels),
+		.flags = AD7791_FLAG_HAS_FILTER | AD7791_FLAG_HAS_BUFFER |
+			AD7791_FLAG_HAS_UNIPOLAR | AD7791_FLAG_HAS_BURNOUT,
+	},
+};
+
+struct ad7791_state {
+	struct ad_sigma_delta sd;
+	uint8_t mode;
+	uint8_t filter;
+
+	struct regulator *reg;
+	const struct ad7791_chip_info *info;
+};
+
+static struct ad7791_state *ad_sigma_delta_to_ad7791(struct ad_sigma_delta *sd)
+{
+	return container_of(sd, struct ad7791_state, sd);
+}
+
+static int ad7791_set_channel(struct ad_sigma_delta *sd, unsigned int channel)
+{
+	ad_sd_set_comm(sd, channel);
+
+	return 0;
+}
+
+static int ad7791_set_mode(struct ad_sigma_delta *sd,
+	enum ad_sigma_delta_mode mode)
+{
+	struct ad7791_state *st = ad_sigma_delta_to_ad7791(sd);
+
+	switch (mode) {
+	case AD_SD_MODE_CONTINUOUS:
+		mode = AD7791_MODE_CONTINUOUS;
+		break;
+	case AD_SD_MODE_SINGLE:
+		mode = AD7791_MODE_SINGLE;
+		break;
+	case AD_SD_MODE_IDLE:
+	case AD_SD_MODE_POWERDOWN:
+		mode = AD7791_MODE_POWERDOWN;
+		break;
+	}
+
+	st->mode &= ~AD7791_MODE_SEL_MASK;
+	st->mode |= AD7791_MODE_SEL(mode);
+
+	return ad_sd_write_reg(sd, AD7791_REG_MODE, sizeof(st->mode), st->mode);
+}
+
+static const struct ad_sigma_delta_info ad7791_sigma_delta_info = {
+	.set_channel = ad7791_set_channel,
+	.set_mode = ad7791_set_mode,
+	.has_registers = true,
+	.addr_shift = 4,
+	.read_mask = BIT(3),
+};
+
+static int ad7791_read_raw(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, int *val, int *val2, long info)
+{
+	struct ad7791_state *st = iio_priv(indio_dev);
+	bool unipolar = !!(st->mode & AD7791_MODE_UNIPOLAR);
+	unsigned long long scale_pv;
+
+	switch (info) {
+	case IIO_CHAN_INFO_RAW:
+		return ad_sigma_delta_single_conversion(indio_dev, chan, val);
+	case IIO_CHAN_INFO_OFFSET:
+		/**
+		 * Unipolar: 0 to VREF
+		 * Bipolar -VREF to VREF
+		 **/
+		if (unipolar)
+			*val = 0;
+		else
+			*val = -(1 << (chan->scan_type.realbits - 1));
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		/* The monitor channel uses an internal reference. */
+		if (chan->address == AD7791_CH_AVDD_MONITOR) {
+			scale_pv = 5850000000000ULL;
+		} else {
+			int voltage_uv;
+
+			voltage_uv = regulator_get_voltage(st->reg);
+			if (voltage_uv < 0)
+				return voltage_uv;
+			scale_pv = (unsigned long long)voltage_uv * 1000000;
+		}
+		if (unipolar)
+			scale_pv >>= chan->scan_type.realbits;
+		else
+			scale_pv >>= chan->scan_type.realbits - 1;
+		*val2 = do_div(scale_pv, 1000000000);
+		*val = scale_pv;
+
+		return IIO_VAL_INT_PLUS_NANO;
+	}
+
+	return -EINVAL;
+}
+
+static const char * const ad7791_sample_freq_avail[] = {
+	[AD7791_FILTER_RATE_120] = "120",
+	[AD7791_FILTER_RATE_100] = "100",
+	[AD7791_FILTER_RATE_33_3] = "33.3",
+	[AD7791_FILTER_RATE_20] = "20",
+	[AD7791_FILTER_RATE_16_6] = "16.6",
+	[AD7791_FILTER_RATE_16_7] = "16.7",
+	[AD7791_FILTER_RATE_13_3] = "13.3",
+	[AD7791_FILTER_RATE_9_5] = "9.5",
+};
+
+static ssize_t ad7791_read_frequency(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct ad7791_state *st = iio_priv(indio_dev);
+	unsigned int rate = st->filter & AD7791_FILTER_RATE_MASK;
+
+	return sprintf(buf, "%s\n", ad7791_sample_freq_avail[rate]);
+}
+
+static ssize_t ad7791_write_frequency(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct ad7791_state *st = iio_priv(indio_dev);
+	int i, ret;
+
+	mutex_lock(&indio_dev->mlock);
+	if (iio_buffer_enabled(indio_dev)) {
+		mutex_unlock(&indio_dev->mlock);
+		return -EBUSY;
+	}
+	mutex_unlock(&indio_dev->mlock);
+
+	ret = -EINVAL;
+
+	for (i = 0; i < ARRAY_SIZE(ad7791_sample_freq_avail); i++) {
+		if (sysfs_streq(ad7791_sample_freq_avail[i], buf)) {
+
+			mutex_lock(&indio_dev->mlock);
+			st->filter &= ~AD7791_FILTER_RATE_MASK;
+			st->filter |= i;
+			ad_sd_write_reg(&st->sd, AD7791_REG_FILTER,
+					 sizeof(st->filter), st->filter);
+			mutex_unlock(&indio_dev->mlock);
+			ret = 0;
+			break;
+		}
+	}
+
+	return ret ? ret : len;
+}
+
+static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
+		ad7791_read_frequency,
+		ad7791_write_frequency);
+
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("120 100 33.3 20 16.7 16.6 13.3 9.5");
+
+static struct attribute *ad7791_attributes[] = {
+	&iio_dev_attr_sampling_frequency.dev_attr.attr,
+	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group ad7791_attribute_group = {
+	.attrs = ad7791_attributes,
+};
+
+static const struct iio_info ad7791_info = {
+	.read_raw = &ad7791_read_raw,
+	.attrs = &ad7791_attribute_group,
+	.validate_trigger = ad_sd_validate_trigger,
+	.driver_module = THIS_MODULE,
+};
+
+static const struct iio_info ad7791_no_filter_info = {
+	.read_raw = &ad7791_read_raw,
+	.validate_trigger = ad_sd_validate_trigger,
+	.driver_module = THIS_MODULE,
+};
+
+static int __devinit ad7791_setup(struct ad7791_state *st,
+	struct ad7791_platform_data *pdata)
+{
+	/* Set to poweron-reset default values */
+	st->mode = AD7791_MODE_BUFFER;
+	st->filter = AD7791_FILTER_RATE_16_6;
+
+	if (!pdata)
+		return 0;
+
+	if ((st->info->flags & AD7791_FLAG_HAS_BUFFER) && !pdata->buffered)
+		st->mode &= ~AD7791_MODE_BUFFER;
+
+	if ((st->info->flags & AD7791_FLAG_HAS_BURNOUT) &&
+		pdata->burnout_current)
+		st->mode |= AD7791_MODE_BURNOUT;
+
+	if ((st->info->flags & AD7791_FLAG_HAS_UNIPOLAR) && pdata->unipolar)
+		st->mode |= AD7791_MODE_UNIPOLAR;
+
+	return ad_sd_write_reg(&st->sd, AD7791_REG_MODE, sizeof(st->mode),
+		st->mode);
+}
+
+static int __devinit ad7791_probe(struct spi_device *spi)
+{
+	struct ad7791_platform_data *pdata = spi->dev.platform_data;
+	struct iio_dev *indio_dev;
+	struct ad7791_state *st;
+	int ret;
+
+	if (!spi->irq) {
+		dev_err(&spi->dev, "Missing IRQ.\n");
+		return -ENXIO;
+	}
+
+	indio_dev = iio_device_alloc(sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	st = iio_priv(indio_dev);
+
+	st->reg = regulator_get(&spi->dev, "refin");
+	if (IS_ERR(st->reg)) {
+		ret = PTR_ERR(st->reg);
+		goto err_iio_free;
+	}
+
+	ret = regulator_enable(st->reg);
+	if (ret)
+		goto error_put_reg;
+
+	st->info = &ad7791_chip_infos[spi_get_device_id(spi)->driver_data];
+	ad_sd_init(&st->sd, indio_dev, spi, &ad7791_sigma_delta_info);
+
+	spi_set_drvdata(spi, indio_dev);
+
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->name = spi_get_device_id(spi)->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = st->info->channels;
+	indio_dev->num_channels = st->info->num_channels;
+	if (st->info->flags & AD7791_FLAG_HAS_FILTER)
+		indio_dev->info = &ad7791_info;
+	else
+		indio_dev->info = &ad7791_no_filter_info;
+
+	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
+	if (ret)
+		goto error_disable_reg;
+
+	ret = ad7791_setup(st, pdata);
+	if (ret)
+		goto error_remove_trigger;
+
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto error_remove_trigger;
+
+	return 0;
+
+error_remove_trigger:
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
+error_disable_reg:
+	regulator_disable(st->reg);
+error_put_reg:
+	regulator_put(st->reg);
+err_iio_free:
+	iio_device_free(indio_dev);
+
+	return ret;
+}
+
+static int __devexit ad7791_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct ad7791_state *st = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
+
+	regulator_disable(st->reg);
+	regulator_put(st->reg);
+
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static const struct spi_device_id ad7791_spi_ids[] = {
+	{ "ad7787", AD7787 },
+	{ "ad7788", AD7788 },
+	{ "ad7789", AD7789 },
+	{ "ad7790", AD7790 },
+	{ "ad7791", AD7791 },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, ad7791_spi_ids);
+
+static struct spi_driver ad7791_driver = {
+	.driver = {
+		.name	= "ad7791",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ad7791_probe,
+	.remove		= __devexit_p(ad7791_remove),
+	.id_table	= ad7791_spi_ids,
+};
+module_spi_driver(ad7791_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Analog Device AD7787/AD7788/AD7789/AD7790/AD7791 ADC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
new file mode 100644
index 00000000000..67baa1363d7
--- /dev/null
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -0,0 +1,558 @@
+/*
+ * Support code for Analog Devices Sigma-Delta ADCs
+ *
+ * Copyright 2012 Analog Devices Inc.
+ *  Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/err.h>
+#include <linux/module.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/adc/ad_sigma_delta.h>
+
+#include <asm/unaligned.h>
+
+
+#define AD_SD_COMM_CHAN_MASK	0x3
+
+#define AD_SD_REG_COMM		0x00
+#define AD_SD_REG_DATA		0x03
+
+/**
+ * ad_sd_set_comm() - Set communications register
+ *
+ * @sigma_delta: The sigma delta device
+ * @comm: New value for the communications register
+ */
+void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, uint8_t comm)
+{
+	/* Some variants use the lower two bits of the communications register
+	 * to select the channel */
+	sigma_delta->comm = comm & AD_SD_COMM_CHAN_MASK;
+}
+EXPORT_SYMBOL_GPL(ad_sd_set_comm);
+
+/**
+ * ad_sd_write_reg() - Write a register
+ *
+ * @sigma_delta: The sigma delta device
+ * @reg: Address of the register
+ * @size: Size of the register (0-3)
+ * @val: Value to write to the register
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
+	unsigned int size, unsigned int val)
+{
+	uint8_t *data = sigma_delta->data;
+	struct spi_transfer t = {
+		.tx_buf		= data,
+		.len		= size + 1,
+		.cs_change	= sigma_delta->bus_locked,
+	};
+	struct spi_message m;
+	int ret;
+
+	data[0] = (reg << sigma_delta->info->addr_shift) | sigma_delta->comm;
+
+	switch (size) {
+	case 3:
+		data[1] = val >> 16;
+		data[2] = val >> 8;
+		data[3] = val;
+		break;
+	case 2:
+		put_unaligned_be16(val, &data[1]);
+		break;
+	case 1:
+		data[1] = val;
+		break;
+	case 0:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t, &m);
+
+	if (sigma_delta->bus_locked)
+		ret = spi_sync_locked(sigma_delta->spi, &m);
+	else
+		ret = spi_sync(sigma_delta->spi, &m);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ad_sd_write_reg);
+
+static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,
+	unsigned int reg, unsigned int size, uint8_t *val)
+{
+	uint8_t *data = sigma_delta->data;
+	int ret;
+	struct spi_transfer t[] = {
+		{
+			.tx_buf = data,
+			.len = 1,
+		}, {
+			.rx_buf = val,
+			.len = size,
+			.cs_change = sigma_delta->bus_locked,
+		},
+	};
+	struct spi_message m;
+
+	spi_message_init(&m);
+
+	if (sigma_delta->info->has_registers) {
+		data[0] = reg << sigma_delta->info->addr_shift;
+		data[0] |= sigma_delta->info->read_mask;
+		spi_message_add_tail(&t[0], &m);
+	}
+	spi_message_add_tail(&t[1], &m);
+
+	if (sigma_delta->bus_locked)
+		ret = spi_sync_locked(sigma_delta->spi, &m);
+	else
+		ret = spi_sync(sigma_delta->spi, &m);
+
+	return ret;
+}
+
+/**
+ * ad_sd_read_reg() - Read a register
+ *
+ * @sigma_delta: The sigma delta device
+ * @reg: Address of the register
+ * @size: Size of the register (1-4)
+ * @val: Read value
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta,
+	unsigned int reg, unsigned int size, unsigned int *val)
+{
+	int ret;
+
+	ret = ad_sd_read_reg_raw(sigma_delta, reg, size, sigma_delta->data);
+	if (ret < 0)
+		goto out;
+
+	switch (size) {
+	case 4:
+		*val = get_unaligned_be32(sigma_delta->data);
+		break;
+	case 3:
+		*val = (sigma_delta->data[0] << 16) |
+			(sigma_delta->data[1] << 8) |
+			sigma_delta->data[2];
+		break;
+	case 2:
+		*val = get_unaligned_be16(sigma_delta->data);
+		break;
+	case 1:
+		*val = sigma_delta->data[0];
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+out:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ad_sd_read_reg);
+
+static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
+	unsigned int mode, unsigned int channel)
+{
+	int ret;
+
+	ret = ad_sigma_delta_set_channel(sigma_delta, channel);
+	if (ret)
+		return ret;
+
+	spi_bus_lock(sigma_delta->spi->master);
+	sigma_delta->bus_locked = true;
+	INIT_COMPLETION(sigma_delta->completion);
+
+	ret = ad_sigma_delta_set_mode(sigma_delta, mode);
+	if (ret < 0)
+		goto out;
+
+	sigma_delta->irq_dis = false;
+	enable_irq(sigma_delta->spi->irq);
+	ret = wait_for_completion_timeout(&sigma_delta->completion, 2*HZ);
+	if (ret == 0) {
+		sigma_delta->irq_dis = true;
+		disable_irq_nosync(sigma_delta->spi->irq);
+		ret = -EIO;
+	} else {
+		ret = 0;
+	}
+out:
+	sigma_delta->bus_locked = false;
+	spi_bus_unlock(sigma_delta->spi->master);
+	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
+
+	return ret;
+}
+
+/**
+ * ad_sd_calibrate_all() - Performs channel calibration
+ * @sigma_delta: The sigma delta device
+ * @cb: Array of channels and calibration type to perform
+ * @n: Number of items in cb
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
+	const struct ad_sd_calib_data *cb, unsigned int n)
+{
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < n; i++) {
+		ret = ad_sd_calibrate(sigma_delta, cb[i].mode, cb[i].channel);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ad_sd_calibrate_all);
+
+/**
+ * ad_sigma_delta_single_conversion() - Performs a single data conversion
+ * @indio_dev: The IIO device
+ * @chan: The conversion is done for this channel
+ * @val: Pointer to the location where to store the read value
+ *
+ * Returns: 0 on success, an error value otherwise.
+ */
+int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, int *val)
+{
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+	unsigned int sample, raw_sample;
+	int ret = 0;
+
+	if (iio_buffer_enabled(indio_dev))
+		return -EBUSY;
+
+	mutex_lock(&indio_dev->mlock);
+	ad_sigma_delta_set_channel(sigma_delta, chan->address);
+
+	spi_bus_lock(sigma_delta->spi->master);
+	sigma_delta->bus_locked = true;
+	INIT_COMPLETION(sigma_delta->completion);
+
+	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_SINGLE);
+
+	sigma_delta->irq_dis = false;
+	enable_irq(sigma_delta->spi->irq);
+	ret = wait_for_completion_interruptible_timeout(
+			&sigma_delta->completion, HZ);
+
+	sigma_delta->bus_locked = false;
+	spi_bus_unlock(sigma_delta->spi->master);
+
+	if (ret == 0)
+		ret = -EIO;
+	if (ret < 0)
+		goto out;
+
+	ret = ad_sd_read_reg(sigma_delta, AD_SD_REG_DATA,
+		DIV_ROUND_UP(chan->scan_type.realbits + chan->scan_type.shift, 8),
+		&raw_sample);
+
+out:
+	if (!sigma_delta->irq_dis) {
+		disable_irq_nosync(sigma_delta->spi->irq);
+		sigma_delta->irq_dis = true;
+	}
+
+	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
+	mutex_unlock(&indio_dev->mlock);
+
+	if (ret)
+		return ret;
+
+	sample = raw_sample >> chan->scan_type.shift;
+	sample &= (1 << chan->scan_type.realbits) - 1;
+	*val = sample;
+
+	ret = ad_sigma_delta_postprocess_sample(sigma_delta, raw_sample);
+	if (ret)
+		return ret;
+
+	return IIO_VAL_INT;
+}
+EXPORT_SYMBOL_GPL(ad_sigma_delta_single_conversion);
+
+static int ad_sd_buffer_postenable(struct iio_dev *indio_dev)
+{
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+	unsigned int channel;
+	int ret;
+
+	ret = iio_triggered_buffer_postenable(indio_dev);
+	if (ret < 0)
+		return ret;
+
+	channel = find_first_bit(indio_dev->active_scan_mask,
+				 indio_dev->masklength);
+	ret = ad_sigma_delta_set_channel(sigma_delta,
+		indio_dev->channels[channel].address);
+	if (ret)
+		goto err_predisable;
+
+	spi_bus_lock(sigma_delta->spi->master);
+	sigma_delta->bus_locked = true;
+	ret = ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_CONTINUOUS);
+	if (ret)
+		goto err_unlock;
+
+	sigma_delta->irq_dis = false;
+	enable_irq(sigma_delta->spi->irq);
+
+	return 0;
+
+err_unlock:
+	spi_bus_unlock(sigma_delta->spi->master);
+err_predisable:
+
+	return ret;
+}
+
+static int ad_sd_buffer_postdisable(struct iio_dev *indio_dev)
+{
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+
+	INIT_COMPLETION(sigma_delta->completion);
+	wait_for_completion_timeout(&sigma_delta->completion, HZ);
+
+	if (!sigma_delta->irq_dis) {
+		disable_irq_nosync(sigma_delta->spi->irq);
+		sigma_delta->irq_dis = true;
+	}
+
+	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
+
+	sigma_delta->bus_locked = false;
+	return spi_bus_unlock(sigma_delta->spi->master);
+}
+
+static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+	unsigned int reg_size;
+	uint8_t data[16];
+	int ret;
+
+	memset(data, 0x00, 16);
+
+	/* Guaranteed to be aligned with 8 byte boundary */
+	if (indio_dev->scan_timestamp)
+		((s64 *)data)[1] = pf->timestamp;
+
+	reg_size = indio_dev->channels[0].scan_type.realbits +
+			indio_dev->channels[0].scan_type.shift;
+	reg_size = DIV_ROUND_UP(reg_size, 8);
+
+	switch (reg_size) {
+	case 4:
+	case 2:
+	case 1:
+		ret = ad_sd_read_reg_raw(sigma_delta, AD_SD_REG_DATA,
+			reg_size, &data[0]);
+		break;
+	case 3:
+		/* We store 24 bit samples in a 32 bit word. Keep the upper
+		 * byte set to zero. */
+		ret = ad_sd_read_reg_raw(sigma_delta, AD_SD_REG_DATA,
+			reg_size, &data[1]);
+		break;
+	}
+
+	iio_push_to_buffer(indio_dev->buffer, (uint8_t *)data);
+
+	iio_trigger_notify_done(indio_dev->trig);
+	sigma_delta->irq_dis = false;
+	enable_irq(sigma_delta->spi->irq);
+
+	return IRQ_HANDLED;
+}
+
+static const struct iio_buffer_setup_ops ad_sd_buffer_setup_ops = {
+	.preenable = &iio_sw_buffer_preenable,
+	.postenable = &ad_sd_buffer_postenable,
+	.predisable = &iio_triggered_buffer_predisable,
+	.postdisable = &ad_sd_buffer_postdisable,
+	.validate_scan_mask = &iio_validate_scan_mask_onehot,
+};
+
+static irqreturn_t ad_sd_data_rdy_trig_poll(int irq, void *private)
+{
+	struct ad_sigma_delta *sigma_delta = private;
+
+	complete(&sigma_delta->completion);
+	disable_irq_nosync(irq);
+	sigma_delta->irq_dis = true;
+	iio_trigger_poll(sigma_delta->trig, iio_get_time_ns());
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * ad_sd_validate_trigger() - validate_trigger callback for ad_sigma_delta devices
+ * @indio_dev: The IIO device
+ * @trig: The new trigger
+ *
+ * Returns: 0 if the 'trig' matches the trigger registered by the ad_sigma_delta
+ * device, -EINVAL otherwise.
+ */
+int ad_sd_validate_trigger(struct iio_dev *indio_dev, struct iio_trigger *trig)
+{
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+
+	if (sigma_delta->trig != trig)
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ad_sd_validate_trigger);
+
+static const struct iio_trigger_ops ad_sd_trigger_ops = {
+	.owner = THIS_MODULE,
+};
+
+static int ad_sd_probe_trigger(struct iio_dev *indio_dev)
+{
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+	int ret;
+
+	sigma_delta->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
+						indio_dev->id);
+	if (sigma_delta->trig == NULL) {
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+	sigma_delta->trig->ops = &ad_sd_trigger_ops;
+	init_completion(&sigma_delta->completion);
+
+	ret = request_irq(sigma_delta->spi->irq,
+			  ad_sd_data_rdy_trig_poll,
+			  IRQF_TRIGGER_LOW,
+			  indio_dev->name,
+			  sigma_delta);
+	if (ret)
+		goto error_free_trig;
+
+	if (!sigma_delta->irq_dis) {
+		sigma_delta->irq_dis = true;
+		disable_irq_nosync(sigma_delta->spi->irq);
+	}
+	sigma_delta->trig->dev.parent = &sigma_delta->spi->dev;
+	sigma_delta->trig->private_data = sigma_delta;
+
+	ret = iio_trigger_register(sigma_delta->trig);
+	if (ret)
+		goto error_free_irq;
+
+	/* select default trigger */
+	indio_dev->trig = sigma_delta->trig;
+
+	return 0;
+
+error_free_irq:
+	free_irq(sigma_delta->spi->irq, sigma_delta);
+error_free_trig:
+	iio_trigger_free(sigma_delta->trig);
+error_ret:
+	return ret;
+}
+
+static void ad_sd_remove_trigger(struct iio_dev *indio_dev)
+{
+	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
+
+	iio_trigger_unregister(sigma_delta->trig);
+	free_irq(sigma_delta->spi->irq, sigma_delta);
+	iio_trigger_free(sigma_delta->trig);
+}
+
+/**
+ * ad_sd_setup_buffer_and_trigger() -
+ * @indio_dev: The IIO device
+ */
+int ad_sd_setup_buffer_and_trigger(struct iio_dev *indio_dev)
+{
+	int ret;
+
+	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+			&ad_sd_trigger_handler, &ad_sd_buffer_setup_ops);
+	if (ret)
+		return ret;
+
+	ret = ad_sd_probe_trigger(indio_dev);
+	if (ret) {
+		iio_triggered_buffer_cleanup(indio_dev);
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ad_sd_setup_buffer_and_trigger);
+
+/**
+ * ad_sd_cleanup_buffer_and_trigger() -
+ * @indio_dev: The IIO device
+ */
+void ad_sd_cleanup_buffer_and_trigger(struct iio_dev *indio_dev)
+{
+	ad_sd_remove_trigger(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+}
+EXPORT_SYMBOL_GPL(ad_sd_cleanup_buffer_and_trigger);
+
+/**
+ * ad_sd_init() - Initializes a ad_sigma_delta struct
+ * @sigma_delta: The ad_sigma_delta device
+ * @indio_dev: The IIO device which the Sigma Delta device is used for
+ * @spi: The SPI device for the ad_sigma_delta device
+ * @info: Device specific callbacks and options
+ *
+ * This function needs to be called before any other operations are performed on
+ * the ad_sigma_delta struct.
+ */
+int ad_sd_init(struct ad_sigma_delta *sigma_delta, struct iio_dev *indio_dev,
+	struct spi_device *spi, const struct ad_sigma_delta_info *info)
+{
+	sigma_delta->spi = spi;
+	sigma_delta->info = info;
+	iio_device_set_drvdata(indio_dev, sigma_delta);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ad_sd_init);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Analog Devices Sigma-Delta ADCs");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index f61780a0237..3ed94bf8059 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -82,7 +82,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
 		*timestamp = pf->timestamp;
 	}
 
-	buffer->access->store_to(buffer, (u8 *)st->buffer, pf->timestamp);
+	buffer->access->store_to(buffer, (u8 *)st->buffer);
 
 	iio_trigger_notify_done(idev->trig);
 	st->irq_enabled = true;
@@ -545,13 +545,6 @@ static int __devinit at91_adc_probe(struct platform_device *pdev)
 		goto error_free_device;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "No resource defined\n");
-		ret = -ENXIO;
-		goto error_ret;
-	}
-
 	platform_set_drvdata(pdev, idev);
 
 	idev->dev.parent = &pdev->dev;
@@ -566,18 +559,12 @@ static int __devinit at91_adc_probe(struct platform_device *pdev)
 		goto error_free_device;
 	}
 
-	if (!request_mem_region(res->start, resource_size(res),
-				"AT91 adc registers")) {
-		dev_err(&pdev->dev, "Resources are unavailable.\n");
-		ret = -EBUSY;
-		goto error_free_device;
-	}
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	st->reg_base = ioremap(res->start, resource_size(res));
+	st->reg_base = devm_request_and_ioremap(&pdev->dev, res);
 	if (!st->reg_base) {
-		dev_err(&pdev->dev, "Failed to map registers.\n");
 		ret = -ENOMEM;
-		goto error_release_mem;
+		goto error_free_device;
 	}
 
 	/*
@@ -592,45 +579,35 @@ static int __devinit at91_adc_probe(struct platform_device *pdev)
 			  idev);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to allocate IRQ.\n");
-		goto error_unmap_reg;
+		goto error_free_device;
 	}
 
-	st->clk = clk_get(&pdev->dev, "adc_clk");
+	st->clk = devm_clk_get(&pdev->dev, "adc_clk");
 	if (IS_ERR(st->clk)) {
 		dev_err(&pdev->dev, "Failed to get the clock.\n");
 		ret = PTR_ERR(st->clk);
 		goto error_free_irq;
 	}
 
-	ret = clk_prepare(st->clk);
+	ret = clk_prepare_enable(st->clk);
 	if (ret) {
-		dev_err(&pdev->dev, "Could not prepare the clock.\n");
-		goto error_free_clk;
-	}
-
-	ret = clk_enable(st->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "Could not enable the clock.\n");
-		goto error_unprepare_clk;
+		dev_err(&pdev->dev,
+			"Could not prepare or enable the clock.\n");
+		goto error_free_irq;
 	}
 
-	st->adc_clk = clk_get(&pdev->dev, "adc_op_clk");
+	st->adc_clk = devm_clk_get(&pdev->dev, "adc_op_clk");
 	if (IS_ERR(st->adc_clk)) {
 		dev_err(&pdev->dev, "Failed to get the ADC clock.\n");
-		ret = PTR_ERR(st->clk);
+		ret = PTR_ERR(st->adc_clk);
 		goto error_disable_clk;
 	}
 
-	ret = clk_prepare(st->adc_clk);
+	ret = clk_prepare_enable(st->adc_clk);
 	if (ret) {
-		dev_err(&pdev->dev, "Could not prepare the ADC clock.\n");
-		goto error_free_adc_clk;
-	}
-
-	ret = clk_enable(st->adc_clk);
-	if (ret) {
-		dev_err(&pdev->dev, "Could not enable the ADC clock.\n");
-		goto error_unprepare_adc_clk;
+		dev_err(&pdev->dev,
+			"Could not prepare or enable the ADC clock.\n");
+		goto error_disable_clk;
 	}
 
 	/*
@@ -694,23 +671,11 @@ error_remove_triggers:
 error_unregister_buffer:
 	at91_adc_buffer_remove(idev);
 error_disable_adc_clk:
-	clk_disable(st->adc_clk);
-error_unprepare_adc_clk:
-	clk_unprepare(st->adc_clk);
-error_free_adc_clk:
-	clk_put(st->adc_clk);
+	clk_disable_unprepare(st->adc_clk);
 error_disable_clk:
-	clk_disable(st->clk);
-error_unprepare_clk:
-	clk_unprepare(st->clk);
-error_free_clk:
-	clk_put(st->clk);
+	clk_disable_unprepare(st->clk);
 error_free_irq:
 	free_irq(st->irq, idev);
-error_unmap_reg:
-	iounmap(st->reg_base);
-error_release_mem:
-	release_mem_region(res->start, resource_size(res));
 error_free_device:
 	iio_device_free(idev);
 error_ret:
@@ -720,20 +685,14 @@ error_ret:
 static int __devexit at91_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *idev = platform_get_drvdata(pdev);
-	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct at91_adc_state *st = iio_priv(idev);
 
 	iio_device_unregister(idev);
 	at91_adc_trigger_remove(idev);
 	at91_adc_buffer_remove(idev);
 	clk_disable_unprepare(st->adc_clk);
-	clk_put(st->adc_clk);
-	clk_disable(st->clk);
-	clk_unprepare(st->clk);
-	clk_put(st->clk);
+	clk_disable_unprepare(st->clk);
 	free_irq(st->irq, idev);
-	iounmap(st->reg_base);
-	release_mem_region(res->start, resource_size(res));
 	iio_device_free(idev);
 
 	return 0;
diff --git a/drivers/iio/adc/lp8788_adc.c b/drivers/iio/adc/lp8788_adc.c
new file mode 100644
index 00000000000..a93aaf0bb84
--- /dev/null
+++ b/drivers/iio/adc/lp8788_adc.c
@@ -0,0 +1,264 @@
+/*
+ * TI LP8788 MFD - ADC driver
+ *
+ * Copyright 2012 Texas Instruments
+ *
+ * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/driver.h>
+#include <linux/iio/machine.h>
+#include <linux/mfd/lp8788.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/* register address */
+#define LP8788_ADC_CONF			0x60
+#define LP8788_ADC_RAW			0x61
+#define LP8788_ADC_DONE			0x63
+
+#define ADC_CONV_START			1
+
+struct lp8788_adc {
+	struct lp8788 *lp;
+	struct iio_map *map;
+	struct mutex lock;
+};
+
+static const int lp8788_scale[LPADC_MAX] = {
+	[LPADC_VBATT_5P5] = 1343101,
+	[LPADC_VIN_CHG]   = 3052503,
+	[LPADC_IBATT]     = 610500,
+	[LPADC_IC_TEMP]   = 61050,
+	[LPADC_VBATT_6P0] = 1465201,
+	[LPADC_VBATT_5P0] = 1221001,
+	[LPADC_ADC1]      = 610500,
+	[LPADC_ADC2]      = 610500,
+	[LPADC_VDD]       = 1025641,
+	[LPADC_VCOIN]     = 757020,
+	[LPADC_ADC3]      = 610500,
+	[LPADC_ADC4]      = 610500,
+};
+
+static int lp8788_get_adc_result(struct lp8788_adc *adc, enum lp8788_adc_id id,
+				int *val)
+{
+	unsigned int msb;
+	unsigned int lsb;
+	unsigned int result;
+	u8 data;
+	u8 rawdata[2];
+	int size = ARRAY_SIZE(rawdata);
+	int retry = 5;
+	int ret;
+
+	data = (id << 1) | ADC_CONV_START;
+	ret = lp8788_write_byte(adc->lp, LP8788_ADC_CONF, data);
+	if (ret)
+		goto err_io;
+
+	/* retry until adc conversion is done */
+	data = 0;
+	while (retry--) {
+		usleep_range(100, 200);
+
+		ret = lp8788_read_byte(adc->lp, LP8788_ADC_DONE, &data);
+		if (ret)
+			goto err_io;
+
+		/* conversion done */
+		if (data)
+			break;
+	}
+
+	ret = lp8788_read_multi_bytes(adc->lp, LP8788_ADC_RAW, rawdata, size);
+	if (ret)
+		goto err_io;
+
+	msb = (rawdata[0] << 4) & 0x00000ff0;
+	lsb = (rawdata[1] >> 4) & 0x0000000f;
+	result = msb | lsb;
+	*val = result;
+
+	return 0;
+
+err_io:
+	return ret;
+}
+
+static int lp8788_adc_read_raw(struct iio_dev *indio_dev,
+			struct iio_chan_spec const *chan,
+			int *val, int *val2, long mask)
+{
+	struct lp8788_adc *adc = iio_priv(indio_dev);
+	enum lp8788_adc_id id = chan->channel;
+	int ret;
+
+	mutex_lock(&adc->lock);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = lp8788_get_adc_result(adc, id, val) ? -EIO : IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = lp8788_scale[id] / 1000000;
+		*val2 = lp8788_scale[id] % 1000000;
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	mutex_unlock(&adc->lock);
+
+	return ret;
+}
+
+static const struct iio_info lp8788_adc_info = {
+	.read_raw = &lp8788_adc_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+#define LP8788_CHAN(_id, _type) {				\
+		.type = _type,					\
+		.indexed = 1,					\
+		.channel = LPADC_##_id,				\
+		.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |	\
+			IIO_CHAN_INFO_SCALE_SEPARATE_BIT,	\
+		.datasheet_name = #_id,				\
+}
+
+static const struct iio_chan_spec lp8788_adc_channels[] = {
+	[LPADC_VBATT_5P5] = LP8788_CHAN(VBATT_5P5, IIO_VOLTAGE),
+	[LPADC_VIN_CHG]   = LP8788_CHAN(VIN_CHG, IIO_VOLTAGE),
+	[LPADC_IBATT]     = LP8788_CHAN(IBATT, IIO_CURRENT),
+	[LPADC_IC_TEMP]   = LP8788_CHAN(IC_TEMP, IIO_TEMP),
+	[LPADC_VBATT_6P0] = LP8788_CHAN(VBATT_6P0, IIO_VOLTAGE),
+	[LPADC_VBATT_5P0] = LP8788_CHAN(VBATT_5P0, IIO_VOLTAGE),
+	[LPADC_ADC1]      = LP8788_CHAN(ADC1, IIO_VOLTAGE),
+	[LPADC_ADC2]      = LP8788_CHAN(ADC2, IIO_VOLTAGE),
+	[LPADC_VDD]       = LP8788_CHAN(VDD, IIO_VOLTAGE),
+	[LPADC_VCOIN]     = LP8788_CHAN(VCOIN, IIO_VOLTAGE),
+	[LPADC_ADC3]      = LP8788_CHAN(ADC3, IIO_VOLTAGE),
+	[LPADC_ADC4]      = LP8788_CHAN(ADC4, IIO_VOLTAGE),
+};
+
+/* default maps used by iio consumer (lp8788-charger driver) */
+static struct iio_map lp8788_default_iio_maps[] = {
+	{
+		.consumer_dev_name = "lp8788-charger",
+		.consumer_channel = "lp8788_vbatt_5p0",
+		.adc_channel_label = "VBATT_5P0",
+	},
+	{
+		.consumer_dev_name = "lp8788-charger",
+		.consumer_channel = "lp8788_adc1",
+		.adc_channel_label = "ADC1",
+	},
+	{ }
+};
+
+static int lp8788_iio_map_register(struct iio_dev *indio_dev,
+				struct lp8788_platform_data *pdata,
+				struct lp8788_adc *adc)
+{
+	struct iio_map *map;
+	int ret;
+
+	map = (!pdata || !pdata->adc_pdata) ?
+		lp8788_default_iio_maps : pdata->adc_pdata;
+
+	ret = iio_map_array_register(indio_dev, map);
+	if (ret) {
+		dev_err(adc->lp->dev, "iio map err: %d\n", ret);
+		return ret;
+	}
+
+	adc->map = map;
+	return 0;
+}
+
+static inline void lp8788_iio_map_unregister(struct iio_dev *indio_dev,
+				struct lp8788_adc *adc)
+{
+	iio_map_array_unregister(indio_dev, adc->map);
+}
+
+static int __devinit lp8788_adc_probe(struct platform_device *pdev)
+{
+	struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
+	struct iio_dev *indio_dev;
+	struct lp8788_adc *adc;
+	int ret;
+
+	indio_dev = iio_device_alloc(sizeof(*adc));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	adc = iio_priv(indio_dev);
+	adc->lp = lp;
+	platform_set_drvdata(pdev, indio_dev);
+
+	ret = lp8788_iio_map_register(indio_dev, lp->pdata, adc);
+	if (ret)
+		goto err_iio_map;
+
+	mutex_init(&adc->lock);
+
+	indio_dev->dev.parent = lp->dev;
+	indio_dev->name = pdev->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &lp8788_adc_info;
+	indio_dev->channels = lp8788_adc_channels;
+	indio_dev->num_channels = ARRAY_SIZE(lp8788_adc_channels);
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(lp->dev, "iio dev register err: %d\n", ret);
+		goto err_iio_device;
+	}
+
+	return 0;
+
+err_iio_device:
+	lp8788_iio_map_unregister(indio_dev, adc);
+err_iio_map:
+	iio_device_free(indio_dev);
+	return ret;
+}
+
+static int __devexit lp8788_adc_remove(struct platform_device *pdev)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct lp8788_adc *adc = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	lp8788_iio_map_unregister(indio_dev, adc);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static struct platform_driver lp8788_adc_driver = {
+	.probe = lp8788_adc_probe,
+	.remove = __devexit_p(lp8788_adc_remove),
+	.driver = {
+		.name = LP8788_DEV_ADC,
+		.owner = THIS_MODULE,
+	},
+};
+module_platform_driver(lp8788_adc_driver);
+
+MODULE_DESCRIPTION("Texas Instruments LP8788 ADC Driver");
+MODULE_AUTHOR("Milo Kim");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lp8788-adc");
diff --git a/drivers/iio/common/Kconfig b/drivers/iio/common/Kconfig
new file mode 100644
index 00000000000..ed45ee54500
--- /dev/null
+++ b/drivers/iio/common/Kconfig
@@ -0,0 +1,5 @@
+#
+# IIO common modules
+#
+
+source "drivers/iio/common/hid-sensors/Kconfig"
diff --git a/drivers/iio/common/Makefile b/drivers/iio/common/Makefile
new file mode 100644
index 00000000000..81584009b21
--- /dev/null
+++ b/drivers/iio/common/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for the IIO common modules.
+# Common modules contains modules, which can be shared among multiple
+# IIO modules. For example if the trigger processing is common for
+# multiple IIO modules then this can be moved to a common module
+# instead of duplicating in each module.
+#
+
+obj-y += hid-sensors/
diff --git a/drivers/iio/common/hid-sensors/Kconfig b/drivers/iio/common/hid-sensors/Kconfig
new file mode 100644
index 00000000000..8e63d81d652
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/Kconfig
@@ -0,0 +1,26 @@
+#
+# Hid Sensor common modules
+#
+menu "Hid Sensor IIO Common"
+
+config HID_SENSOR_IIO_COMMON
+	tristate "Common modules for all HID Sensor IIO drivers"
+	depends on HID_SENSOR_HUB
+	select IIO_TRIGGER if IIO_BUFFER
+	help
+	  Say yes here to build support for HID sensor to use
+	  HID sensor common processing for attributes and IIO triggers.
+	  There are many attributes which can be shared among multiple
+	  HID sensor drivers, this module contains processing for those
+	  attributes.
+
+config HID_SENSOR_ENUM_BASE_QUIRKS
+	tristate "ENUM base quirks for HID Sensor IIO drivers"
+	depends on HID_SENSOR_IIO_COMMON
+	help
+	  Say yes here to build support for sensor hub FW using
+	  enumeration, which is using 1 as base instead of 0.
+	  Since logical minimum is still set 0 instead of 1,
+	  there is no easy way to differentiate.
+
+endmenu
diff --git a/drivers/iio/common/hid-sensors/Makefile b/drivers/iio/common/hid-sensors/Makefile
new file mode 100644
index 00000000000..1f463e00c24
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the Hid sensor common modules.
+#
+
+obj-$(CONFIG_HID_SENSOR_IIO_COMMON) += hid-sensor-iio-common.o
+hid-sensor-iio-common-y := hid-sensor-attributes.o hid-sensor-trigger.o
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
new file mode 100644
index 00000000000..75374955cab
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
@@ -0,0 +1,250 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include "hid-sensor-attributes.h"
+
+static int pow_10(unsigned power)
+{
+	int i;
+	int ret = 1;
+	for (i = 0; i < power; ++i)
+		ret = ret * 10;
+
+	return ret;
+}
+
+static void simple_div(int dividend, int divisor, int *whole,
+				int *micro_frac)
+{
+	int rem;
+	int exp = 0;
+
+	*micro_frac = 0;
+	if (divisor == 0) {
+		*whole = 0;
+		return;
+	}
+	*whole = dividend/divisor;
+	rem = dividend % divisor;
+	if (rem) {
+		while (rem <= divisor) {
+			rem *= 10;
+			exp++;
+		}
+		*micro_frac = (rem / divisor) * pow_10(6-exp);
+	}
+}
+
+static void split_micro_fraction(unsigned int no, int exp, int *val1, int *val2)
+{
+	*val1 = no/pow_10(exp);
+	*val2 = no%pow_10(exp) * pow_10(6-exp);
+}
+
+/*
+VTF format uses exponent and variable size format.
+For example if the size is 2 bytes
+0x0067 with VTF16E14 format -> +1.03
+To convert just change to 0x67 to decimal and use two decimal as E14 stands
+for 10^-2.
+Negative numbers are 2's complement
+*/
+static void convert_from_vtf_format(u32 value, int size, int exp,
+					int *val1, int *val2)
+{
+	int sign = 1;
+
+	if (value & BIT(size*8 - 1)) {
+		value =  ((1LL << (size * 8)) - value);
+		sign = -1;
+	}
+	exp = hid_sensor_convert_exponent(exp);
+	if (exp >= 0) {
+		*val1 = sign * value * pow_10(exp);
+		*val2 = 0;
+	} else {
+		split_micro_fraction(value, -exp, val1, val2);
+		if (*val1)
+			*val1 = sign * (*val1);
+		else
+			*val2 = sign * (*val2);
+	}
+}
+
+static u32 convert_to_vtf_format(int size, int exp, int val1, int val2)
+{
+	u32 value;
+	int sign = 1;
+
+	if (val1 < 0 || val2 < 0)
+		sign = -1;
+	exp = hid_sensor_convert_exponent(exp);
+	if (exp < 0) {
+		value = abs(val1) * pow_10(-exp);
+		value += abs(val2) / pow_10(6+exp);
+	} else
+		value = abs(val1) / pow_10(exp);
+	if (sign < 0)
+		value =  ((1LL << (size * 8)) - value);
+
+	return value;
+}
+
+int hid_sensor_read_samp_freq_value(struct hid_sensor_iio_common *st,
+				int *val1, int *val2)
+{
+	s32 value;
+	int ret;
+
+	ret = sensor_hub_get_feature(st->hsdev,
+		st->poll.report_id,
+		st->poll.index, &value);
+	if (ret < 0 || value < 0) {
+		*val1 = *val2 = 0;
+		return -EINVAL;
+	} else {
+		if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND)
+			simple_div(1000, value, val1, val2);
+		else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND)
+			simple_div(1, value, val1, val2);
+		else {
+			*val1 = *val2 = 0;
+			return -EINVAL;
+		}
+	}
+
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+EXPORT_SYMBOL(hid_sensor_read_samp_freq_value);
+
+int hid_sensor_write_samp_freq_value(struct hid_sensor_iio_common *st,
+				int val1, int val2)
+{
+	s32 value;
+	int ret;
+
+	if (val1 < 0 || val2 < 0)
+		ret = -EINVAL;
+
+	value = val1 * pow_10(6) + val2;
+	if (value) {
+		if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND)
+			value = pow_10(9)/value;
+		else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND)
+			value = pow_10(6)/value;
+		else
+			value = 0;
+	}
+	ret = sensor_hub_set_feature(st->hsdev,
+		st->poll.report_id,
+		st->poll.index, value);
+	if (ret < 0 || value < 0)
+		ret = -EINVAL;
+
+	return ret;
+}
+EXPORT_SYMBOL(hid_sensor_write_samp_freq_value);
+
+int hid_sensor_read_raw_hyst_value(struct hid_sensor_iio_common *st,
+				int *val1, int *val2)
+{
+	s32 value;
+	int ret;
+
+	ret = sensor_hub_get_feature(st->hsdev,
+		st->sensitivity.report_id,
+		st->sensitivity.index, &value);
+	if (ret < 0 || value < 0) {
+		*val1 = *val2 = 0;
+		return -EINVAL;
+	} else {
+		convert_from_vtf_format(value, st->sensitivity.size,
+					st->sensitivity.unit_expo,
+					val1, val2);
+	}
+
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+EXPORT_SYMBOL(hid_sensor_read_raw_hyst_value);
+
+int hid_sensor_write_raw_hyst_value(struct hid_sensor_iio_common *st,
+					int val1, int val2)
+{
+	s32 value;
+	int ret;
+
+	value = convert_to_vtf_format(st->sensitivity.size,
+				st->sensitivity.unit_expo,
+				val1, val2);
+	ret = sensor_hub_set_feature(st->hsdev,
+		st->sensitivity.report_id,
+		st->sensitivity.index, value);
+	if (ret < 0 || value < 0)
+		ret = -EINVAL;
+
+	return ret;
+}
+EXPORT_SYMBOL(hid_sensor_write_raw_hyst_value);
+
+int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
+					u32 usage_id,
+					struct hid_sensor_iio_common *st)
+{
+
+	sensor_hub_input_get_attribute_info(hsdev,
+					HID_FEATURE_REPORT, usage_id,
+					HID_USAGE_SENSOR_PROP_REPORT_INTERVAL,
+					&st->poll);
+
+	sensor_hub_input_get_attribute_info(hsdev,
+					HID_FEATURE_REPORT, usage_id,
+					HID_USAGE_SENSOR_PROP_REPORT_STATE,
+					&st->report_state);
+
+	sensor_hub_input_get_attribute_info(hsdev,
+					HID_FEATURE_REPORT, usage_id,
+					HID_USAGE_SENSOR_PROY_POWER_STATE,
+					&st->power_state);
+
+	sensor_hub_input_get_attribute_info(hsdev,
+			HID_FEATURE_REPORT, usage_id,
+			HID_USAGE_SENSOR_PROP_SENSITIVITY_ABS,
+			 &st->sensitivity);
+
+	hid_dbg(hsdev->hdev, "common attributes: %x:%x, %x:%x, %x:%x %x:%x\n",
+			st->poll.index, st->poll.report_id,
+			st->report_state.index, st->report_state.report_id,
+			st->power_state.index, st->power_state.report_id,
+			st->sensitivity.index, st->sensitivity.report_id);
+
+	return 0;
+}
+EXPORT_SYMBOL(hid_sensor_parse_common_attributes);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_DESCRIPTION("HID Sensor common attribute processing");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.h b/drivers/iio/common/hid-sensors/hid-sensor-attributes.h
new file mode 100644
index 00000000000..a4676a0c3de
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.h
@@ -0,0 +1,57 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#ifndef _HID_SENSORS_ATTRIBUTES_H
+#define _HID_SENSORS_ATTRIBUTES_H
+
+/* Common hid sensor iio structure */
+struct hid_sensor_iio_common {
+	struct hid_sensor_hub_device *hsdev;
+	struct platform_device *pdev;
+	unsigned usage_id;
+	bool data_ready;
+	struct hid_sensor_hub_attribute_info poll;
+	struct hid_sensor_hub_attribute_info report_state;
+	struct hid_sensor_hub_attribute_info power_state;
+	struct hid_sensor_hub_attribute_info sensitivity;
+};
+
+/*Convert from hid unit expo to regular exponent*/
+static inline int hid_sensor_convert_exponent(int unit_expo)
+{
+	if (unit_expo < 0x08)
+		return unit_expo;
+	else if (unit_expo <= 0x0f)
+		return -(0x0f-unit_expo+1);
+	else
+		return 0;
+}
+
+int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
+					u32 usage_id,
+					struct hid_sensor_iio_common *st);
+int hid_sensor_write_raw_hyst_value(struct hid_sensor_iio_common *st,
+					int val1, int val2);
+int hid_sensor_read_raw_hyst_value(struct hid_sensor_iio_common *st,
+					int *val1, int *val2);
+int hid_sensor_write_samp_freq_value(struct hid_sensor_iio_common *st,
+					int val1, int val2);
+int hid_sensor_read_samp_freq_value(struct hid_sensor_iio_common *st,
+					int *val1, int *val2);
+
+#endif
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
new file mode 100644
index 00000000000..d4b790d18ef
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -0,0 +1,103 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/sysfs.h>
+#include "hid-sensor-attributes.h"
+#include "hid-sensor-trigger.h"
+
+static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
+						bool state)
+{
+	struct hid_sensor_iio_common *st = trig->private_data;
+	int state_val;
+
+	state_val = state ? 1 : 0;
+#if (defined CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS) || \
+	(defined CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS_MODULE)
+	++state_val;
+#endif
+	st->data_ready = state;
+	sensor_hub_set_feature(st->hsdev, st->power_state.report_id,
+					st->power_state.index,
+					(s32)state_val);
+
+	sensor_hub_set_feature(st->hsdev, st->report_state.report_id,
+					st->report_state.index,
+					(s32)state_val);
+
+	return 0;
+}
+
+void hid_sensor_remove_trigger(struct iio_dev *indio_dev)
+{
+	iio_trigger_unregister(indio_dev->trig);
+	iio_trigger_free(indio_dev->trig);
+	indio_dev->trig = NULL;
+}
+EXPORT_SYMBOL(hid_sensor_remove_trigger);
+
+static const struct iio_trigger_ops hid_sensor_trigger_ops = {
+	.owner = THIS_MODULE,
+	.set_trigger_state = &hid_sensor_data_rdy_trigger_set_state,
+};
+
+int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
+				struct hid_sensor_iio_common *attrb)
+{
+	int ret;
+	struct iio_trigger *trig;
+
+	trig = iio_trigger_alloc("%s-dev%d", name, indio_dev->id);
+	if (trig == NULL) {
+		dev_err(&indio_dev->dev, "Trigger Allocate Failed\n");
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+
+	trig->dev.parent = indio_dev->dev.parent;
+	trig->private_data = attrb;
+	trig->ops = &hid_sensor_trigger_ops;
+	ret = iio_trigger_register(trig);
+
+	if (ret) {
+		dev_err(&indio_dev->dev, "Trigger Register Failed\n");
+		goto error_free_trig;
+	}
+	indio_dev->trig = trig;
+
+	return ret;
+
+error_free_trig:
+	iio_trigger_free(trig);
+error_ret:
+	return ret;
+}
+EXPORT_SYMBOL(hid_sensor_setup_trigger);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_DESCRIPTION("HID Sensor trigger processing");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h
new file mode 100644
index 00000000000..fd982971b1b
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h
@@ -0,0 +1,26 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#ifndef _HID_SENSOR_TRIGGER_H
+#define _HID_SENSOR_TRIGGER_H
+
+int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
+				struct hid_sensor_iio_common *attrb);
+void hid_sensor_remove_trigger(struct iio_dev *indio_dev);
+
+#endif
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 1be15fa9d61..b1c0ee5294c 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -57,11 +57,12 @@ config AD5624R_SPI
 
 config AD5446
 	tristate "Analog Devices AD5446 and similar single channel DACs driver"
-	depends on SPI
+	depends on (SPI_MASTER || I2C)
 	help
-	  Say yes here to build support for Analog Devices AD5444, AD5446, AD5450,
-	  AD5451, AD5452, AD5453, AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601,
-	  AD5611, AD5620, AD5621, AD5640, AD5660, AD5662 DACs.
+	  Say yes here to build support for Analog Devices AD5300, AD5301, AD5310,
+	  AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,
+	  AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601, AD5602, AD5611, AD5612,
+	  AD5620, AD5621, AD5622, AD5640, AD5660, AD5662 DACs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5446.
@@ -76,6 +77,17 @@ config AD5504
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5504.
 
+config AD5755
+	tristate "Analog Devices AD5755/AD5755-1/AD5757/AD5735/AD5737 DAC driver"
+	depends on SPI_MASTER
+	help
+	  Say yes here to build support for Analog Devices AD5755, AD5755-1,
+	  AD5757, AD5735, AD5737 quad channel Digital to
+	  Analog Converter.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad5755.
+
 config AD5764
 	tristate "Analog Devices AD5764/64R/44/44R DAC driver"
 	depends on SPI_MASTER
diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile
index 9ea3ceeefc0..c0d333b23ba 100644
--- a/drivers/iio/dac/Makefile
+++ b/drivers/iio/dac/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_AD5624R_SPI) += ad5624r_spi.o
 obj-$(CONFIG_AD5064) += ad5064.o
 obj-$(CONFIG_AD5504) += ad5504.o
 obj-$(CONFIG_AD5446) += ad5446.o
+obj-$(CONFIG_AD5755) += ad5755.o
 obj-$(CONFIG_AD5764) += ad5764.o
 obj-$(CONFIG_AD5791) += ad5791.o
 obj-$(CONFIG_AD5686) += ad5686.o
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 2ca5059ef89..3310cbbd41e 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -14,6 +14,7 @@
 #include <linux/sysfs.h>
 #include <linux/list.h>
 #include <linux/spi/spi.h>
+#include <linux/i2c.h>
 #include <linux/regulator/consumer.h>
 #include <linux/err.h>
 #include <linux/module.h>
@@ -21,24 +22,40 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 
-#include "ad5446.h"
+#define MODE_PWRDWN_1k		0x1
+#define MODE_PWRDWN_100k	0x2
+#define MODE_PWRDWN_TRISTATE	0x3
 
-static int ad5446_write(struct ad5446_state *st, unsigned val)
-{
-	__be16 data = cpu_to_be16(val);
-	return spi_write(st->spi, &data, sizeof(data));
-}
+/**
+ * struct ad5446_state - driver instance specific data
+ * @spi:		spi_device
+ * @chip_info:		chip model specific constants, available modes etc
+ * @reg:		supply regulator
+ * @vref_mv:		actual reference voltage used
+ */
 
-static int ad5660_write(struct ad5446_state *st, unsigned val)
-{
-	uint8_t data[3];
+struct ad5446_state {
+	struct device		*dev;
+	const struct ad5446_chip_info	*chip_info;
+	struct regulator		*reg;
+	unsigned short			vref_mv;
+	unsigned			cached_val;
+	unsigned			pwr_down_mode;
+	unsigned			pwr_down;
+};
 
-	data[0] = (val >> 16) & 0xFF;
-	data[1] = (val >> 8) & 0xFF;
-	data[2] = val & 0xFF;
+/**
+ * struct ad5446_chip_info - chip specific information
+ * @channel:		channel spec for the DAC
+ * @int_vref_mv:	AD5620/40/60: the internal reference voltage
+ * @write:		chip specific helper function to write to the register
+ */
 
-	return spi_write(st->spi, data, sizeof(data));
-}
+struct ad5446_chip_info {
+	struct iio_chan_spec	channel;
+	u16			int_vref_mv;
+	int			(*write)(struct ad5446_state *st, unsigned val);
+};
 
 static const char * const ad5446_powerdown_modes[] = {
 	"1kohm_to_gnd", "100kohm_to_gnd", "three_state"
@@ -110,7 +127,7 @@ static ssize_t ad5446_write_dac_powerdown(struct iio_dev *indio_dev,
 	return ret ? ret : len;
 }
 
-static const struct iio_chan_spec_ext_info ad5064_ext_info_powerdown[] = {
+static const struct iio_chan_spec_ext_info ad5446_ext_info_powerdown[] = {
 	{
 		.name = "powerdown",
 		.read = ad5446_read_dac_powerdown,
@@ -136,84 +153,7 @@ static const struct iio_chan_spec_ext_info ad5064_ext_info_powerdown[] = {
 	_AD5446_CHANNEL(bits, storage, shift, NULL)
 
 #define AD5446_CHANNEL_POWERDOWN(bits, storage, shift) \
-	_AD5446_CHANNEL(bits, storage, shift, ad5064_ext_info_powerdown)
-
-static const struct ad5446_chip_info ad5446_chip_info_tbl[] = {
-	[ID_AD5444] = {
-		.channel = AD5446_CHANNEL(12, 16, 2),
-		.write = ad5446_write,
-	},
-	[ID_AD5446] = {
-		.channel = AD5446_CHANNEL(14, 16, 0),
-		.write = ad5446_write,
-	},
-	[ID_AD5450] = {
-		.channel = AD5446_CHANNEL(8, 16, 6),
-		.write = ad5446_write,
-	},
-	[ID_AD5451] = {
-		.channel = AD5446_CHANNEL(10, 16, 4),
-		.write = ad5446_write,
-	},
-	[ID_AD5541A] = {
-		.channel = AD5446_CHANNEL(16, 16, 0),
-		.write = ad5446_write,
-	},
-	[ID_AD5512A] = {
-		.channel = AD5446_CHANNEL(12, 16, 4),
-		.write = ad5446_write,
-	},
-	[ID_AD5553] = {
-		.channel = AD5446_CHANNEL(14, 16, 0),
-		.write = ad5446_write,
-	},
-	[ID_AD5601] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(8, 16, 6),
-		.write = ad5446_write,
-	},
-	[ID_AD5611] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(10, 16, 4),
-		.write = ad5446_write,
-	},
-	[ID_AD5621] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
-		.write = ad5446_write,
-	},
-	[ID_AD5620_2500] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
-		.int_vref_mv = 2500,
-		.write = ad5446_write,
-	},
-	[ID_AD5620_1250] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
-		.int_vref_mv = 1250,
-		.write = ad5446_write,
-	},
-	[ID_AD5640_2500] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(14, 16, 0),
-		.int_vref_mv = 2500,
-		.write = ad5446_write,
-	},
-	[ID_AD5640_1250] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(14, 16, 0),
-		.int_vref_mv = 1250,
-		.write = ad5446_write,
-	},
-	[ID_AD5660_2500] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(16, 16, 0),
-		.int_vref_mv = 2500,
-		.write = ad5660_write,
-	},
-	[ID_AD5660_1250] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(16, 16, 0),
-		.int_vref_mv = 1250,
-		.write = ad5660_write,
-	},
-	[ID_AD5662] = {
-		.channel = AD5446_CHANNEL_POWERDOWN(16, 16, 0),
-		.write = ad5660_write,
-	},
-};
+	_AD5446_CHANNEL(bits, storage, shift, ad5446_ext_info_powerdown)
 
 static int ad5446_read_raw(struct iio_dev *indio_dev,
 			   struct iio_chan_spec const *chan,
@@ -272,14 +212,15 @@ static const struct iio_info ad5446_info = {
 	.driver_module = THIS_MODULE,
 };
 
-static int __devinit ad5446_probe(struct spi_device *spi)
+static int __devinit ad5446_probe(struct device *dev, const char *name,
+	const struct ad5446_chip_info *chip_info)
 {
 	struct ad5446_state *st;
 	struct iio_dev *indio_dev;
 	struct regulator *reg;
 	int ret, voltage_uv = 0;
 
-	reg = regulator_get(&spi->dev, "vcc");
+	reg = regulator_get(dev, "vcc");
 	if (!IS_ERR(reg)) {
 		ret = regulator_enable(reg);
 		if (ret)
@@ -294,16 +235,15 @@ static int __devinit ad5446_probe(struct spi_device *spi)
 		goto error_disable_reg;
 	}
 	st = iio_priv(indio_dev);
-	st->chip_info =
-		&ad5446_chip_info_tbl[spi_get_device_id(spi)->driver_data];
+	st->chip_info = chip_info;
 
-	spi_set_drvdata(spi, indio_dev);
+	dev_set_drvdata(dev, indio_dev);
 	st->reg = reg;
-	st->spi = spi;
+	st->dev = dev;
 
-	/* Establish that the iio_dev is a child of the spi device */
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->name = spi_get_device_id(spi)->name;
+	/* Establish that the iio_dev is a child of the device */
+	indio_dev->dev.parent = dev;
+	indio_dev->name = name;
 	indio_dev->info = &ad5446_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = &st->chip_info->channel;
@@ -316,7 +256,7 @@ static int __devinit ad5446_probe(struct spi_device *spi)
 	else if (voltage_uv)
 		st->vref_mv = voltage_uv / 1000;
 	else
-		dev_warn(&spi->dev, "reference voltage unspecified\n");
+		dev_warn(dev, "reference voltage unspecified\n");
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
@@ -336,9 +276,9 @@ error_put_reg:
 	return ret;
 }
 
-static int ad5446_remove(struct spi_device *spi)
+static int ad5446_remove(struct device *dev)
 {
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct ad5446_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
@@ -351,7 +291,151 @@ static int ad5446_remove(struct spi_device *spi)
 	return 0;
 }
 
-static const struct spi_device_id ad5446_id[] = {
+#if IS_ENABLED(CONFIG_SPI_MASTER)
+
+static int ad5446_write(struct ad5446_state *st, unsigned val)
+{
+	struct spi_device *spi = to_spi_device(st->dev);
+	__be16 data = cpu_to_be16(val);
+
+	return spi_write(spi, &data, sizeof(data));
+}
+
+static int ad5660_write(struct ad5446_state *st, unsigned val)
+{
+	struct spi_device *spi = to_spi_device(st->dev);
+	uint8_t data[3];
+
+	data[0] = (val >> 16) & 0xFF;
+	data[1] = (val >> 8) & 0xFF;
+	data[2] = val & 0xFF;
+
+	return spi_write(spi, data, sizeof(data));
+}
+
+/**
+ * ad5446_supported_spi_device_ids:
+ * The AD5620/40/60 parts are available in different fixed internal reference
+ * voltage options. The actual part numbers may look differently
+ * (and a bit cryptic), however this style is used to make clear which
+ * parts are supported here.
+ */
+enum ad5446_supported_spi_device_ids {
+	ID_AD5300,
+	ID_AD5310,
+	ID_AD5320,
+	ID_AD5444,
+	ID_AD5446,
+	ID_AD5450,
+	ID_AD5451,
+	ID_AD5541A,
+	ID_AD5512A,
+	ID_AD5553,
+	ID_AD5601,
+	ID_AD5611,
+	ID_AD5621,
+	ID_AD5620_2500,
+	ID_AD5620_1250,
+	ID_AD5640_2500,
+	ID_AD5640_1250,
+	ID_AD5660_2500,
+	ID_AD5660_1250,
+	ID_AD5662,
+};
+
+static const struct ad5446_chip_info ad5446_spi_chip_info[] = {
+	[ID_AD5300] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(8, 16, 4),
+		.write = ad5446_write,
+	},
+	[ID_AD5310] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(10, 16, 2),
+		.write = ad5446_write,
+	},
+	[ID_AD5320] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 0),
+		.write = ad5446_write,
+	},
+	[ID_AD5444] = {
+		.channel = AD5446_CHANNEL(12, 16, 2),
+		.write = ad5446_write,
+	},
+	[ID_AD5446] = {
+		.channel = AD5446_CHANNEL(14, 16, 0),
+		.write = ad5446_write,
+	},
+	[ID_AD5450] = {
+		.channel = AD5446_CHANNEL(8, 16, 6),
+		.write = ad5446_write,
+	},
+	[ID_AD5451] = {
+		.channel = AD5446_CHANNEL(10, 16, 4),
+		.write = ad5446_write,
+	},
+	[ID_AD5541A] = {
+		.channel = AD5446_CHANNEL(16, 16, 0),
+		.write = ad5446_write,
+	},
+	[ID_AD5512A] = {
+		.channel = AD5446_CHANNEL(12, 16, 4),
+		.write = ad5446_write,
+	},
+	[ID_AD5553] = {
+		.channel = AD5446_CHANNEL(14, 16, 0),
+		.write = ad5446_write,
+	},
+	[ID_AD5601] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(8, 16, 6),
+		.write = ad5446_write,
+	},
+	[ID_AD5611] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(10, 16, 4),
+		.write = ad5446_write,
+	},
+	[ID_AD5621] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
+		.write = ad5446_write,
+	},
+	[ID_AD5620_2500] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
+		.int_vref_mv = 2500,
+		.write = ad5446_write,
+	},
+	[ID_AD5620_1250] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
+		.int_vref_mv = 1250,
+		.write = ad5446_write,
+	},
+	[ID_AD5640_2500] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(14, 16, 0),
+		.int_vref_mv = 2500,
+		.write = ad5446_write,
+	},
+	[ID_AD5640_1250] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(14, 16, 0),
+		.int_vref_mv = 1250,
+		.write = ad5446_write,
+	},
+	[ID_AD5660_2500] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(16, 16, 0),
+		.int_vref_mv = 2500,
+		.write = ad5660_write,
+	},
+	[ID_AD5660_1250] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(16, 16, 0),
+		.int_vref_mv = 1250,
+		.write = ad5660_write,
+	},
+	[ID_AD5662] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(16, 16, 0),
+		.write = ad5660_write,
+	},
+};
+
+static const struct spi_device_id ad5446_spi_ids[] = {
+	{"ad5300", ID_AD5300},
+	{"ad5310", ID_AD5310},
+	{"ad5320", ID_AD5320},
 	{"ad5444", ID_AD5444},
 	{"ad5446", ID_AD5446},
 	{"ad5450", ID_AD5450},
@@ -375,18 +459,160 @@ static const struct spi_device_id ad5446_id[] = {
 	{"ad5662", ID_AD5662},
 	{}
 };
-MODULE_DEVICE_TABLE(spi, ad5446_id);
+MODULE_DEVICE_TABLE(spi, ad5446_spi_ids);
+
+static int __devinit ad5446_spi_probe(struct spi_device *spi)
+{
+	const struct spi_device_id *id = spi_get_device_id(spi);
 
-static struct spi_driver ad5446_driver = {
+	return ad5446_probe(&spi->dev, id->name,
+		&ad5446_spi_chip_info[id->driver_data]);
+}
+
+static int __devexit ad5446_spi_remove(struct spi_device *spi)
+{
+	return ad5446_remove(&spi->dev);
+}
+
+static struct spi_driver ad5446_spi_driver = {
 	.driver = {
 		.name	= "ad5446",
 		.owner	= THIS_MODULE,
 	},
-	.probe		= ad5446_probe,
-	.remove		= __devexit_p(ad5446_remove),
-	.id_table	= ad5446_id,
+	.probe		= ad5446_spi_probe,
+	.remove		= __devexit_p(ad5446_spi_remove),
+	.id_table	= ad5446_spi_ids,
 };
-module_spi_driver(ad5446_driver);
+
+static int __init ad5446_spi_register_driver(void)
+{
+	return spi_register_driver(&ad5446_spi_driver);
+}
+
+static void ad5446_spi_unregister_driver(void)
+{
+	spi_unregister_driver(&ad5446_spi_driver);
+}
+
+#else
+
+static inline int ad5446_spi_register_driver(void) { return 0; }
+static inline void ad5446_spi_unregister_driver(void) { }
+
+#endif
+
+#if IS_ENABLED(CONFIG_I2C)
+
+static int ad5622_write(struct ad5446_state *st, unsigned val)
+{
+	struct i2c_client *client = to_i2c_client(st->dev);
+	__be16 data = cpu_to_be16(val);
+
+	return i2c_master_send(client, (char *)&data, sizeof(data));
+}
+
+/**
+ * ad5446_supported_i2c_device_ids:
+ * The AD5620/40/60 parts are available in different fixed internal reference
+ * voltage options. The actual part numbers may look differently
+ * (and a bit cryptic), however this style is used to make clear which
+ * parts are supported here.
+ */
+enum ad5446_supported_i2c_device_ids {
+	ID_AD5602,
+	ID_AD5612,
+	ID_AD5622,
+};
+
+static const struct ad5446_chip_info ad5446_i2c_chip_info[] = {
+	[ID_AD5602] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(8, 16, 4),
+		.write = ad5622_write,
+	},
+	[ID_AD5612] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(10, 16, 2),
+		.write = ad5622_write,
+	},
+	[ID_AD5622] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 0),
+		.write = ad5622_write,
+	},
+};
+
+static int __devinit ad5446_i2c_probe(struct i2c_client *i2c,
+	const struct i2c_device_id *id)
+{
+	return ad5446_probe(&i2c->dev, id->name,
+		&ad5446_i2c_chip_info[id->driver_data]);
+}
+
+static int __devexit ad5446_i2c_remove(struct i2c_client *i2c)
+{
+	return ad5446_remove(&i2c->dev);
+}
+
+static const struct i2c_device_id ad5446_i2c_ids[] = {
+	{"ad5301", ID_AD5602},
+	{"ad5311", ID_AD5612},
+	{"ad5321", ID_AD5622},
+	{"ad5602", ID_AD5602},
+	{"ad5612", ID_AD5612},
+	{"ad5622", ID_AD5622},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ad5446_i2c_ids);
+
+static struct i2c_driver ad5446_i2c_driver = {
+	.driver = {
+		   .name = "ad5446",
+		   .owner = THIS_MODULE,
+	},
+	.probe = ad5446_i2c_probe,
+	.remove = __devexit_p(ad5446_i2c_remove),
+	.id_table = ad5446_i2c_ids,
+};
+
+static int __init ad5446_i2c_register_driver(void)
+{
+	return i2c_add_driver(&ad5446_i2c_driver);
+}
+
+static void __exit ad5446_i2c_unregister_driver(void)
+{
+	i2c_del_driver(&ad5446_i2c_driver);
+}
+
+#else
+
+static inline int ad5446_i2c_register_driver(void) { return 0; }
+static inline void ad5446_i2c_unregister_driver(void) { }
+
+#endif
+
+static int __init ad5446_init(void)
+{
+	int ret;
+
+	ret = ad5446_spi_register_driver();
+	if (ret)
+		return ret;
+
+	ret = ad5446_i2c_register_driver();
+	if (ret) {
+		ad5446_spi_unregister_driver();
+		return ret;
+	}
+
+	return 0;
+}
+module_init(ad5446_init);
+
+static void __exit ad5446_exit(void)
+{
+	ad5446_i2c_unregister_driver();
+	ad5446_spi_unregister_driver();
+}
+module_exit(ad5446_exit);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD5444/AD5446 DAC");
diff --git a/drivers/iio/dac/ad5446.h b/drivers/iio/dac/ad5446.h
deleted file mode 100644
index 2934269a56d..00000000000
--- a/drivers/iio/dac/ad5446.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * AD5446 SPI DAC driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-#ifndef IIO_DAC_AD5446_H_
-#define IIO_DAC_AD5446_H_
-
-/* DAC Control Bits */
-
-#define AD5446_LOAD		(0x0 << 14) /* Load and update */
-#define AD5446_SDO_DIS		(0x1 << 14) /* Disable SDO */
-#define AD5446_NOP		(0x2 << 14) /* No operation */
-#define AD5446_CLK_RISING	(0x3 << 14) /* Clock data on rising edge */
-
-#define AD5620_LOAD		(0x0 << 14) /* Load and update Norm Operation*/
-#define AD5620_PWRDWN_1k	(0x1 << 14) /* Power-down: 1kOhm to GND */
-#define AD5620_PWRDWN_100k	(0x2 << 14) /* Power-down: 100kOhm to GND */
-#define AD5620_PWRDWN_TRISTATE	(0x3 << 14) /* Power-down: Three-state */
-
-#define AD5660_LOAD		(0x0 << 16) /* Load and update Norm Operation*/
-#define AD5660_PWRDWN_1k	(0x1 << 16) /* Power-down: 1kOhm to GND */
-#define AD5660_PWRDWN_100k	(0x2 << 16) /* Power-down: 100kOhm to GND */
-#define AD5660_PWRDWN_TRISTATE	(0x3 << 16) /* Power-down: Three-state */
-
-#define MODE_PWRDWN_1k		0x1
-#define MODE_PWRDWN_100k	0x2
-#define MODE_PWRDWN_TRISTATE	0x3
-
-/**
- * struct ad5446_state - driver instance specific data
- * @spi:		spi_device
- * @chip_info:		chip model specific constants, available modes etc
- * @reg:		supply regulator
- * @vref_mv:		actual reference voltage used
- */
-
-struct ad5446_state {
-	struct spi_device		*spi;
-	const struct ad5446_chip_info	*chip_info;
-	struct regulator		*reg;
-	unsigned short			vref_mv;
-	unsigned			cached_val;
-	unsigned			pwr_down_mode;
-	unsigned			pwr_down;
-};
-
-/**
- * struct ad5446_chip_info - chip specific information
- * @channel:		channel spec for the DAC
- * @int_vref_mv:	AD5620/40/60: the internal reference voltage
- * @write:		chip specific helper function to write to the register
- */
-
-struct ad5446_chip_info {
-	struct iio_chan_spec	channel;
-	u16			int_vref_mv;
-	int			(*write)(struct ad5446_state *st, unsigned val);
-};
-
-/**
- * ad5446_supported_device_ids:
- * The AD5620/40/60 parts are available in different fixed internal reference
- * voltage options. The actual part numbers may look differently
- * (and a bit cryptic), however this style is used to make clear which
- * parts are supported here.
- */
-
-enum ad5446_supported_device_ids {
-	ID_AD5444,
-	ID_AD5446,
-	ID_AD5450,
-	ID_AD5451,
-	ID_AD5541A,
-	ID_AD5512A,
-	ID_AD5553,
-	ID_AD5601,
-	ID_AD5611,
-	ID_AD5621,
-	ID_AD5620_2500,
-	ID_AD5620_1250,
-	ID_AD5640_2500,
-	ID_AD5640_1250,
-	ID_AD5660_2500,
-	ID_AD5660_1250,
-	ID_AD5662,
-};
-
-#endif /* IIO_DAC_AD5446_H_ */
diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
new file mode 100644
index 00000000000..5db3506034c
--- /dev/null
+++ b/drivers/iio/dac/ad5755.c
@@ -0,0 +1,650 @@
+/*
+ * AD5755, AD5755-1, AD5757, AD5735, AD5737 Digital to analog converters driver
+ *
+ * Copyright 2012 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/platform_data/ad5755.h>
+
+#define AD5755_NUM_CHANNELS 4
+
+#define AD5755_ADDR(x)			((x) << 16)
+
+#define AD5755_WRITE_REG_DATA(chan)	(chan)
+#define AD5755_WRITE_REG_GAIN(chan)	(0x08 | (chan))
+#define AD5755_WRITE_REG_OFFSET(chan)	(0x10 | (chan))
+#define AD5755_WRITE_REG_CTRL(chan)	(0x1c | (chan))
+
+#define AD5755_READ_REG_DATA(chan)	(chan)
+#define AD5755_READ_REG_CTRL(chan)	(0x4 | (chan))
+#define AD5755_READ_REG_GAIN(chan)	(0x8 | (chan))
+#define AD5755_READ_REG_OFFSET(chan)	(0xc | (chan))
+#define AD5755_READ_REG_CLEAR(chan)	(0x10 | (chan))
+#define AD5755_READ_REG_SLEW(chan)	(0x14 | (chan))
+#define AD5755_READ_REG_STATUS		0x18
+#define AD5755_READ_REG_MAIN		0x19
+#define AD5755_READ_REG_DC_DC		0x1a
+
+#define AD5755_CTRL_REG_SLEW	0x0
+#define AD5755_CTRL_REG_MAIN	0x1
+#define AD5755_CTRL_REG_DAC	0x2
+#define AD5755_CTRL_REG_DC_DC	0x3
+#define AD5755_CTRL_REG_SW	0x4
+
+#define AD5755_READ_FLAG 0x800000
+
+#define AD5755_NOOP 0x1CE000
+
+#define AD5755_DAC_INT_EN			BIT(8)
+#define AD5755_DAC_CLR_EN			BIT(7)
+#define AD5755_DAC_OUT_EN			BIT(6)
+#define AD5755_DAC_INT_CURRENT_SENSE_RESISTOR	BIT(5)
+#define AD5755_DAC_DC_DC_EN			BIT(4)
+#define AD5755_DAC_VOLTAGE_OVERRANGE_EN		BIT(3)
+
+#define AD5755_DC_DC_MAXV			0
+#define AD5755_DC_DC_FREQ_SHIFT			2
+#define AD5755_DC_DC_PHASE_SHIFT		4
+#define AD5755_EXT_DC_DC_COMP_RES		BIT(6)
+
+#define AD5755_SLEW_STEP_SIZE_SHIFT		0
+#define AD5755_SLEW_RATE_SHIFT			3
+#define AD5755_SLEW_ENABLE			BIT(12)
+
+/**
+ * struct ad5755_chip_info - chip specific information
+ * @channel_template:	channel specification
+ * @calib_shift:	shift for the calibration data registers
+ * @has_voltage_out:	whether the chip has voltage outputs
+ */
+struct ad5755_chip_info {
+	const struct iio_chan_spec channel_template;
+	unsigned int calib_shift;
+	bool has_voltage_out;
+};
+
+/**
+ * struct ad5755_state - driver instance specific data
+ * @spi:	spi device the driver is attached to
+ * @chip_info:	chip model specific constants, available modes etc
+ * @pwr_down:	bitmask which contains  hether a channel is powered down or not
+ * @ctrl:	software shadow of the channel ctrl registers
+ * @channels:	iio channel spec for the device
+ * @data:	spi transfer buffers
+ */
+struct ad5755_state {
+	struct spi_device		*spi;
+	const struct ad5755_chip_info	*chip_info;
+	unsigned int			pwr_down;
+	unsigned int			ctrl[AD5755_NUM_CHANNELS];
+	struct iio_chan_spec		channels[AD5755_NUM_CHANNELS];
+
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+
+	union {
+		u32 d32;
+		u8 d8[4];
+	} data[2] ____cacheline_aligned;
+};
+
+enum ad5755_type {
+	ID_AD5755,
+	ID_AD5757,
+	ID_AD5735,
+	ID_AD5737,
+};
+
+static int ad5755_write_unlocked(struct iio_dev *indio_dev,
+	unsigned int reg, unsigned int val)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+
+	st->data[0].d32 = cpu_to_be32((reg << 16) | val);
+
+	return spi_write(st->spi, &st->data[0].d8[1], 3);
+}
+
+static int ad5755_write_ctrl_unlocked(struct iio_dev *indio_dev,
+	unsigned int channel, unsigned int reg, unsigned int val)
+{
+	return ad5755_write_unlocked(indio_dev,
+		AD5755_WRITE_REG_CTRL(channel), (reg << 13) | val);
+}
+
+static int ad5755_write(struct iio_dev *indio_dev, unsigned int reg,
+	unsigned int val)
+{
+	int ret;
+
+	mutex_lock(&indio_dev->mlock);
+	ret = ad5755_write_unlocked(indio_dev, reg, val);
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5755_write_ctrl(struct iio_dev *indio_dev, unsigned int channel,
+	unsigned int reg, unsigned int val)
+{
+	int ret;
+
+	mutex_lock(&indio_dev->mlock);
+	ret = ad5755_write_ctrl_unlocked(indio_dev, channel, reg, val);
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5755_read(struct iio_dev *indio_dev, unsigned int addr)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	struct spi_message m;
+	int ret;
+	struct spi_transfer t[] = {
+		{
+			.tx_buf = &st->data[0].d8[1],
+			.len = 3,
+			.cs_change = 1,
+		}, {
+			.tx_buf = &st->data[1].d8[1],
+			.rx_buf = &st->data[1].d8[1],
+			.len = 3,
+		},
+	};
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t[0], &m);
+	spi_message_add_tail(&t[1], &m);
+
+	mutex_lock(&indio_dev->mlock);
+
+	st->data[0].d32 = cpu_to_be32(AD5755_READ_FLAG | (addr << 16));
+	st->data[1].d32 = cpu_to_be32(AD5755_NOOP);
+
+	ret = spi_sync(st->spi, &m);
+	if (ret >= 0)
+		ret = be32_to_cpu(st->data[1].d32) & 0xffff;
+
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5755_update_dac_ctrl(struct iio_dev *indio_dev,
+	unsigned int channel, unsigned int set, unsigned int clr)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	int ret;
+
+	st->ctrl[channel] |= set;
+	st->ctrl[channel] &= ~clr;
+
+	ret = ad5755_write_ctrl_unlocked(indio_dev, channel,
+		AD5755_CTRL_REG_DAC, st->ctrl[channel]);
+
+	return ret;
+}
+
+static int ad5755_set_channel_pwr_down(struct iio_dev *indio_dev,
+	unsigned int channel, bool pwr_down)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	unsigned int mask = BIT(channel);
+
+	mutex_lock(&indio_dev->mlock);
+
+	if ((bool)(st->pwr_down & mask) == pwr_down)
+		goto out_unlock;
+
+	if (!pwr_down) {
+		st->pwr_down &= ~mask;
+		ad5755_update_dac_ctrl(indio_dev, channel,
+			AD5755_DAC_INT_EN | AD5755_DAC_DC_DC_EN, 0);
+		udelay(200);
+		ad5755_update_dac_ctrl(indio_dev, channel,
+			AD5755_DAC_OUT_EN, 0);
+	} else {
+		st->pwr_down |= mask;
+		ad5755_update_dac_ctrl(indio_dev, channel,
+			0, AD5755_DAC_INT_EN | AD5755_DAC_OUT_EN |
+				AD5755_DAC_DC_DC_EN);
+	}
+
+out_unlock:
+	mutex_unlock(&indio_dev->mlock);
+
+	return 0;
+}
+
+static const int ad5755_min_max_table[][2] = {
+	[AD5755_MODE_VOLTAGE_0V_5V] = { 0, 5000 },
+	[AD5755_MODE_VOLTAGE_0V_10V] = { 0, 10000 },
+	[AD5755_MODE_VOLTAGE_PLUSMINUS_5V] = { -5000, 5000 },
+	[AD5755_MODE_VOLTAGE_PLUSMINUS_10V] = { -10000, 10000 },
+	[AD5755_MODE_CURRENT_4mA_20mA] = { 4, 20 },
+	[AD5755_MODE_CURRENT_0mA_20mA] = { 0, 20 },
+	[AD5755_MODE_CURRENT_0mA_24mA] = { 0, 24 },
+};
+
+static void ad5755_get_min_max(struct ad5755_state *st,
+	struct iio_chan_spec const *chan, int *min, int *max)
+{
+	enum ad5755_mode mode = st->ctrl[chan->channel] & 7;
+	*min = ad5755_min_max_table[mode][0];
+	*max = ad5755_min_max_table[mode][1];
+}
+
+static inline int ad5755_get_offset(struct ad5755_state *st,
+	struct iio_chan_spec const *chan)
+{
+	int min, max;
+
+	ad5755_get_min_max(st, chan, &min, &max);
+	return (min * (1 << chan->scan_type.realbits)) / (max - min);
+}
+
+static inline int ad5755_get_scale(struct ad5755_state *st,
+	struct iio_chan_spec const *chan)
+{
+	int min, max;
+
+	ad5755_get_min_max(st, chan, &min, &max);
+	return ((max - min) * 1000000000ULL) >> chan->scan_type.realbits;
+}
+
+static int ad5755_chan_reg_info(struct ad5755_state *st,
+	struct iio_chan_spec const *chan, long info, bool write,
+	unsigned int *reg, unsigned int *shift, unsigned int *offset)
+{
+	switch (info) {
+	case IIO_CHAN_INFO_RAW:
+		if (write)
+			*reg = AD5755_WRITE_REG_DATA(chan->address);
+		else
+			*reg = AD5755_READ_REG_DATA(chan->address);
+		*shift = chan->scan_type.shift;
+		*offset = 0;
+		break;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		if (write)
+			*reg = AD5755_WRITE_REG_OFFSET(chan->address);
+		else
+			*reg = AD5755_READ_REG_OFFSET(chan->address);
+		*shift = st->chip_info->calib_shift;
+		*offset = 32768;
+		break;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		if (write)
+			*reg =  AD5755_WRITE_REG_GAIN(chan->address);
+		else
+			*reg =  AD5755_READ_REG_GAIN(chan->address);
+		*shift = st->chip_info->calib_shift;
+		*offset = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ad5755_read_raw(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, int *val, int *val2, long info)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	unsigned int reg, shift, offset;
+	int ret;
+
+	switch (info) {
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		*val2 = ad5755_get_scale(st, chan);
+		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = ad5755_get_offset(st, chan);
+		return IIO_VAL_INT;
+	default:
+		ret = ad5755_chan_reg_info(st, chan, info, false,
+						&reg, &shift, &offset);
+		if (ret)
+			return ret;
+
+		ret = ad5755_read(indio_dev, reg);
+		if (ret < 0)
+			return ret;
+
+		*val = (ret - offset) >> shift;
+
+		return IIO_VAL_INT;
+	}
+
+	return -EINVAL;
+}
+
+static int ad5755_write_raw(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, int val, int val2, long info)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	unsigned int shift, reg, offset;
+	int ret;
+
+	ret = ad5755_chan_reg_info(st, chan, info, true,
+					&reg, &shift, &offset);
+	if (ret)
+		return ret;
+
+	val <<= shift;
+	val += offset;
+
+	if (val < 0 || val > 0xffff)
+		return -EINVAL;
+
+	return ad5755_write(indio_dev, reg, val);
+}
+
+static ssize_t ad5755_read_powerdown(struct iio_dev *indio_dev, uintptr_t priv,
+	const struct iio_chan_spec *chan, char *buf)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+
+	return sprintf(buf, "%d\n",
+		       (bool)(st->pwr_down & (1 << chan->channel)));
+}
+
+static ssize_t ad5755_write_powerdown(struct iio_dev *indio_dev, uintptr_t priv,
+	struct iio_chan_spec const *chan, const char *buf, size_t len)
+{
+	bool pwr_down;
+	int ret;
+
+	ret = strtobool(buf, &pwr_down);
+	if (ret)
+		return ret;
+
+	ret = ad5755_set_channel_pwr_down(indio_dev, chan->channel, pwr_down);
+	return ret ? ret : len;
+}
+
+static const struct iio_info ad5755_info = {
+	.read_raw = ad5755_read_raw,
+	.write_raw = ad5755_write_raw,
+	.driver_module = THIS_MODULE,
+};
+
+static const struct iio_chan_spec_ext_info ad5755_ext_info[] = {
+	{
+		.name = "powerdown",
+		.read = ad5755_read_powerdown,
+		.write = ad5755_write_powerdown,
+	},
+	{ },
+};
+
+#define AD5755_CHANNEL(_bits) {					\
+	.indexed = 1,						\
+	.output = 1,						\
+	.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,		\
+	.scan_type = IIO_ST('u', (_bits), 16, 16 - (_bits)),	\
+	.ext_info = ad5755_ext_info,				\
+}
+
+static const struct ad5755_chip_info ad5755_chip_info_tbl[] = {
+	[ID_AD5735] = {
+		.channel_template = AD5755_CHANNEL(14),
+		.has_voltage_out = true,
+		.calib_shift = 4,
+	},
+	[ID_AD5737] = {
+		.channel_template = AD5755_CHANNEL(14),
+		.has_voltage_out = false,
+		.calib_shift = 4,
+	},
+	[ID_AD5755] = {
+		.channel_template = AD5755_CHANNEL(16),
+		.has_voltage_out = true,
+		.calib_shift = 0,
+	},
+	[ID_AD5757] = {
+		.channel_template = AD5755_CHANNEL(16),
+		.has_voltage_out = false,
+		.calib_shift = 0,
+	},
+};
+
+static bool ad5755_is_valid_mode(struct ad5755_state *st, enum ad5755_mode mode)
+{
+	switch (mode) {
+	case AD5755_MODE_VOLTAGE_0V_5V:
+	case AD5755_MODE_VOLTAGE_0V_10V:
+	case AD5755_MODE_VOLTAGE_PLUSMINUS_5V:
+	case AD5755_MODE_VOLTAGE_PLUSMINUS_10V:
+		return st->chip_info->has_voltage_out;
+	case AD5755_MODE_CURRENT_4mA_20mA:
+	case AD5755_MODE_CURRENT_0mA_20mA:
+	case AD5755_MODE_CURRENT_0mA_24mA:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static int __devinit ad5755_setup_pdata(struct iio_dev *indio_dev,
+	const struct ad5755_platform_data *pdata)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	unsigned int val;
+	unsigned int i;
+	int ret;
+
+	if (pdata->dc_dc_phase > AD5755_DC_DC_PHASE_90_DEGREE ||
+		pdata->dc_dc_freq > AD5755_DC_DC_FREQ_650kHZ ||
+		pdata->dc_dc_maxv > AD5755_DC_DC_MAXV_29V5)
+		return -EINVAL;
+
+	val = pdata->dc_dc_maxv << AD5755_DC_DC_MAXV;
+	val |= pdata->dc_dc_freq << AD5755_DC_DC_FREQ_SHIFT;
+	val |= pdata->dc_dc_phase << AD5755_DC_DC_PHASE_SHIFT;
+	if (pdata->ext_dc_dc_compenstation_resistor)
+		val |= AD5755_EXT_DC_DC_COMP_RES;
+
+	ret = ad5755_write_ctrl(indio_dev, 0, AD5755_CTRL_REG_DC_DC, val);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(pdata->dac); ++i) {
+		val = pdata->dac[i].slew.step_size <<
+			AD5755_SLEW_STEP_SIZE_SHIFT;
+		val |= pdata->dac[i].slew.rate <<
+			AD5755_SLEW_RATE_SHIFT;
+		if (pdata->dac[i].slew.enable)
+			val |= AD5755_SLEW_ENABLE;
+
+		ret = ad5755_write_ctrl(indio_dev, i,
+					AD5755_CTRL_REG_SLEW, val);
+		if (ret < 0)
+			return ret;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(pdata->dac); ++i) {
+		if (!ad5755_is_valid_mode(st, pdata->dac[i].mode))
+			return -EINVAL;
+
+		val = 0;
+		if (!pdata->dac[i].ext_current_sense_resistor)
+			val |= AD5755_DAC_INT_CURRENT_SENSE_RESISTOR;
+		if (pdata->dac[i].enable_voltage_overrange)
+			val |= AD5755_DAC_VOLTAGE_OVERRANGE_EN;
+		val |= pdata->dac[i].mode;
+
+		ret = ad5755_update_dac_ctrl(indio_dev, i, val, 0);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static bool __devinit ad5755_is_voltage_mode(enum ad5755_mode mode)
+{
+	switch (mode) {
+	case AD5755_MODE_VOLTAGE_0V_5V:
+	case AD5755_MODE_VOLTAGE_0V_10V:
+	case AD5755_MODE_VOLTAGE_PLUSMINUS_5V:
+	case AD5755_MODE_VOLTAGE_PLUSMINUS_10V:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static int __devinit ad5755_init_channels(struct iio_dev *indio_dev,
+	const struct ad5755_platform_data *pdata)
+{
+	struct ad5755_state *st = iio_priv(indio_dev);
+	struct iio_chan_spec *channels = st->channels;
+	unsigned int i;
+
+	for (i = 0; i < AD5755_NUM_CHANNELS; ++i) {
+		channels[i] = st->chip_info->channel_template;
+		channels[i].channel = i;
+		channels[i].address = i;
+		if (pdata && ad5755_is_voltage_mode(pdata->dac[i].mode))
+			channels[i].type = IIO_VOLTAGE;
+		else
+			channels[i].type = IIO_CURRENT;
+	}
+
+	indio_dev->channels = channels;
+
+	return 0;
+}
+
+#define AD5755_DEFAULT_DAC_PDATA { \
+		.mode = AD5755_MODE_CURRENT_4mA_20mA, \
+		.ext_current_sense_resistor = true, \
+		.enable_voltage_overrange = false, \
+		.slew = { \
+			.enable = false, \
+			.rate = AD5755_SLEW_RATE_64k, \
+			.step_size = AD5755_SLEW_STEP_SIZE_1, \
+		}, \
+	}
+
+static const struct ad5755_platform_data ad5755_default_pdata = {
+	.ext_dc_dc_compenstation_resistor = false,
+	.dc_dc_phase = AD5755_DC_DC_PHASE_ALL_SAME_EDGE,
+	.dc_dc_freq = AD5755_DC_DC_FREQ_410kHZ,
+	.dc_dc_maxv = AD5755_DC_DC_MAXV_23V,
+	.dac = {
+		[0] = AD5755_DEFAULT_DAC_PDATA,
+		[1] = AD5755_DEFAULT_DAC_PDATA,
+		[2] = AD5755_DEFAULT_DAC_PDATA,
+		[3] = AD5755_DEFAULT_DAC_PDATA,
+	},
+};
+
+static int __devinit ad5755_probe(struct spi_device *spi)
+{
+	enum ad5755_type type = spi_get_device_id(spi)->driver_data;
+	const struct ad5755_platform_data *pdata = dev_get_platdata(&spi->dev);
+	struct iio_dev *indio_dev;
+	struct ad5755_state *st;
+	int ret;
+
+	indio_dev = iio_device_alloc(sizeof(*st));
+	if (indio_dev == NULL) {
+		dev_err(&spi->dev, "Failed to allocate iio device\n");
+		return  -ENOMEM;
+	}
+
+	st = iio_priv(indio_dev);
+	spi_set_drvdata(spi, indio_dev);
+
+	st->chip_info = &ad5755_chip_info_tbl[type];
+	st->spi = spi;
+	st->pwr_down = 0xf;
+
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->name = spi_get_device_id(spi)->name;
+	indio_dev->info = &ad5755_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->num_channels = AD5755_NUM_CHANNELS;
+
+	if (!pdata)
+		pdata = &ad5755_default_pdata;
+
+	ret = ad5755_init_channels(indio_dev, pdata);
+	if (ret)
+		goto error_free;
+
+	ret = ad5755_setup_pdata(indio_dev, pdata);
+	if (ret)
+		goto error_free;
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
+		goto error_free;
+	}
+
+	return 0;
+
+error_free:
+	iio_device_free(indio_dev);
+
+	return ret;
+}
+
+static int __devexit ad5755_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+
+	iio_device_unregister(indio_dev);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static const struct spi_device_id ad5755_id[] = {
+	{ "ad5755", ID_AD5755 },
+	{ "ad5755-1", ID_AD5755 },
+	{ "ad5757", ID_AD5757 },
+	{ "ad5735", ID_AD5735 },
+	{ "ad5737", ID_AD5737 },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, ad5755_id);
+
+static struct spi_driver ad5755_driver = {
+	.driver = {
+		.name = "ad5755",
+		.owner = THIS_MODULE,
+	},
+	.probe = ad5755_probe,
+	.remove = __devexit_p(ad5755_remove),
+	.id_table = ad5755_id,
+};
+module_spi_driver(ad5755_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Analog Devices AD5755/55-1/57/35/37 DAC");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 59fbb3ae40e..e35bb8f6fe7 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -129,7 +129,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq)
 {
 	struct adf4350_platform_data *pdata = st->pdata;
 	u64 tmp;
-	u32 div_gcd, prescaler;
+	u32 div_gcd, prescaler, chspc;
 	u16 mdiv, r_cnt = 0;
 	u8 band_sel_div;
 
@@ -158,14 +158,20 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq)
 	if (pdata->ref_div_factor)
 		r_cnt = pdata->ref_div_factor - 1;
 
-	do  {
-		r_cnt = adf4350_tune_r_cnt(st, r_cnt);
+	chspc = st->chspc;
 
-		st->r1_mod = st->fpfd / st->chspc;
-		while (st->r1_mod > ADF4350_MAX_MODULUS) {
-			r_cnt = adf4350_tune_r_cnt(st, r_cnt);
-			st->r1_mod = st->fpfd / st->chspc;
-		}
+	do  {
+		do {
+			do {
+				r_cnt = adf4350_tune_r_cnt(st, r_cnt);
+				st->r1_mod = st->fpfd / chspc;
+				if (r_cnt > ADF4350_MAX_R_CNT) {
+					/* try higher spacing values */
+					chspc++;
+					r_cnt = 0;
+				}
+			} while ((st->r1_mod > ADF4350_MAX_MODULUS) && r_cnt);
+		} while (r_cnt == 0);
 
 		tmp = freq * (u64)st->r1_mod + (st->fpfd > 1);
 		do_div(tmp, st->fpfd); /* Div round closest (n + d/2)/d */
@@ -194,7 +200,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq)
 	st->regs[ADF4350_REG0] = ADF4350_REG0_INT(st->r0_int) |
 				 ADF4350_REG0_FRACT(st->r0_fract);
 
-	st->regs[ADF4350_REG1] = ADF4350_REG1_PHASE(0) |
+	st->regs[ADF4350_REG1] = ADF4350_REG1_PHASE(1) |
 				 ADF4350_REG1_MOD(st->r1_mod) |
 				 prescaler;
 
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
new file mode 100644
index 00000000000..21e27e2fc68
--- /dev/null
+++ b/drivers/iio/gyro/Kconfig
@@ -0,0 +1,16 @@
+#
+# IIO Digital Gyroscope Sensor drivers configuration
+#
+menu "Digital gyroscope sensors"
+
+config HID_SENSOR_GYRO_3D
+	depends on HID_SENSOR_HUB
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	select HID_SENSOR_IIO_COMMON
+	tristate "HID Gyroscope 3D"
+	help
+	  Say yes here to build support for the HID SENSOR
+	  Gyroscope 3D.
+
+endmenu
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
new file mode 100644
index 00000000000..8a895d9fcbc
--- /dev/null
+++ b/drivers/iio/gyro/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for industrial I/O gyroscope sensor drivers
+#
+
+obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
new file mode 100644
index 00000000000..4c56ada51c3
--- /dev/null
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -0,0 +1,418 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include "../common/hid-sensors/hid-sensor-attributes.h"
+#include "../common/hid-sensors/hid-sensor-trigger.h"
+
+/*Format: HID-SENSOR-usage_id_in_hex*/
+/*Usage ID from spec for Gyro-3D: 0x200076*/
+#define DRIVER_NAME "HID-SENSOR-200076"
+
+enum gyro_3d_channel {
+	CHANNEL_SCAN_INDEX_X,
+	CHANNEL_SCAN_INDEX_Y,
+	CHANNEL_SCAN_INDEX_Z,
+	GYRO_3D_CHANNEL_MAX,
+};
+
+struct gyro_3d_state {
+	struct hid_sensor_hub_callbacks callbacks;
+	struct hid_sensor_iio_common common_attributes;
+	struct hid_sensor_hub_attribute_info gyro[GYRO_3D_CHANNEL_MAX];
+	u32 gyro_val[GYRO_3D_CHANNEL_MAX];
+};
+
+static const u32 gyro_3d_addresses[GYRO_3D_CHANNEL_MAX] = {
+	HID_USAGE_SENSOR_ANGL_VELOCITY_X_AXIS,
+	HID_USAGE_SENSOR_ANGL_VELOCITY_Y_AXIS,
+	HID_USAGE_SENSOR_ANGL_VELOCITY_Z_AXIS
+};
+
+/* Channel definitions */
+static const struct iio_chan_spec gyro_3d_channels[] = {
+	{
+		.type = IIO_ANGL_VEL,
+		.modified = 1,
+		.channel2 = IIO_MOD_X,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_X,
+	}, {
+		.type = IIO_ANGL_VEL,
+		.modified = 1,
+		.channel2 = IIO_MOD_Y,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_Y,
+	}, {
+		.type = IIO_ANGL_VEL,
+		.modified = 1,
+		.channel2 = IIO_MOD_Z,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_Z,
+	}
+};
+
+/* Adjust channel real bits based on report descriptor */
+static void gyro_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels,
+						int channel, int size)
+{
+	channels[channel].scan_type.sign = 's';
+	/* Real storage bits will change based on the report desc. */
+	channels[channel].scan_type.realbits = size * 8;
+	/* Maximum size of a sample to capture is u32 */
+	channels[channel].scan_type.storagebits = sizeof(u32) * 8;
+}
+
+/* Channel read_raw handler */
+static int gyro_3d_read_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int *val, int *val2,
+			      long mask)
+{
+	struct gyro_3d_state *gyro_state = iio_priv(indio_dev);
+	int report_id = -1;
+	u32 address;
+	int ret;
+	int ret_type;
+
+	*val = 0;
+	*val2 = 0;
+	switch (mask) {
+	case 0:
+		report_id = gyro_state->gyro[chan->scan_index].report_id;
+		address = gyro_3d_addresses[chan->scan_index];
+		if (report_id >= 0)
+			*val = sensor_hub_input_attr_get_raw_value(
+				gyro_state->common_attributes.hsdev,
+				HID_USAGE_SENSOR_GYRO_3D, address,
+				report_id);
+		else {
+			*val = 0;
+			return -EINVAL;
+		}
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = gyro_state->gyro[CHANNEL_SCAN_INDEX_X].units;
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = hid_sensor_convert_exponent(
+			gyro_state->gyro[CHANNEL_SCAN_INDEX_X].unit_expo);
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_read_samp_freq_value(
+			&gyro_state->common_attributes, val, val2);
+			ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_read_raw_hyst_value(
+			&gyro_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret_type = -EINVAL;
+		break;
+	}
+
+	return ret_type;
+}
+
+/* Channel write_raw handler */
+static int gyro_3d_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct gyro_3d_state *gyro_state = iio_priv(indio_dev);
+	int ret = 0;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_write_samp_freq_value(
+				&gyro_state->common_attributes, val, val2);
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_write_raw_hyst_value(
+				&gyro_state->common_attributes, val, val2);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int gyro_3d_write_raw_get_fmt(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       long mask)
+{
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static const struct iio_info gyro_3d_info = {
+	.driver_module = THIS_MODULE,
+	.read_raw = &gyro_3d_read_raw,
+	.write_raw = &gyro_3d_write_raw,
+	.write_raw_get_fmt = &gyro_3d_write_raw_get_fmt,
+};
+
+/* Function to push data to buffer */
+static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+{
+	struct iio_buffer *buffer = indio_dev->buffer;
+	int datum_sz;
+
+	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
+	if (!buffer) {
+		dev_err(&indio_dev->dev, "Buffer == NULL\n");
+		return;
+	}
+	datum_sz = buffer->access->get_bytes_per_datum(buffer);
+	if (len > datum_sz) {
+		dev_err(&indio_dev->dev, "Datum size mismatch %d:%d\n", len,
+				datum_sz);
+		return;
+	}
+	iio_push_to_buffer(buffer, (u8 *)data);
+}
+
+/* Callback handler to send event after all samples are received and captured */
+static int gyro_3d_proc_event(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct gyro_3d_state *gyro_state = iio_priv(indio_dev);
+
+	dev_dbg(&indio_dev->dev, "gyro_3d_proc_event [%d]\n",
+				gyro_state->common_attributes.data_ready);
+	if (gyro_state->common_attributes.data_ready)
+		hid_sensor_push_data(indio_dev,
+				(u8 *)gyro_state->gyro_val,
+				sizeof(gyro_state->gyro_val));
+
+	return 0;
+}
+
+/* Capture samples in local storage */
+static int gyro_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				size_t raw_len, char *raw_data,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct gyro_3d_state *gyro_state = iio_priv(indio_dev);
+	int offset;
+	int ret = -EINVAL;
+
+	switch (usage_id) {
+	case HID_USAGE_SENSOR_ANGL_VELOCITY_X_AXIS:
+	case HID_USAGE_SENSOR_ANGL_VELOCITY_Y_AXIS:
+	case HID_USAGE_SENSOR_ANGL_VELOCITY_Z_AXIS:
+		offset = usage_id - HID_USAGE_SENSOR_ANGL_VELOCITY_X_AXIS;
+		gyro_state->gyro_val[CHANNEL_SCAN_INDEX_X + offset] =
+						*(u32 *)raw_data;
+		ret = 0;
+	break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+/* Parse report which is specific to an usage id*/
+static int gyro_3d_parse_report(struct platform_device *pdev,
+				struct hid_sensor_hub_device *hsdev,
+				struct iio_chan_spec *channels,
+				unsigned usage_id,
+				struct gyro_3d_state *st)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i <= CHANNEL_SCAN_INDEX_Z; ++i) {
+		ret = sensor_hub_input_get_attribute_info(hsdev,
+				HID_INPUT_REPORT,
+				usage_id,
+				HID_USAGE_SENSOR_ANGL_VELOCITY_X_AXIS + i,
+				&st->gyro[CHANNEL_SCAN_INDEX_X + i]);
+		if (ret < 0)
+			break;
+		gyro_3d_adjust_channel_bit_mask(channels,
+				CHANNEL_SCAN_INDEX_X + i,
+				st->gyro[CHANNEL_SCAN_INDEX_X + i].size);
+	}
+	dev_dbg(&pdev->dev, "gyro_3d %x:%x, %x:%x, %x:%x\n",
+			st->gyro[0].index,
+			st->gyro[0].report_id,
+			st->gyro[1].index, st->gyro[1].report_id,
+			st->gyro[2].index, st->gyro[2].report_id);
+
+	return ret;
+}
+
+/* Function to initialize the processing for usage id */
+static int __devinit hid_gyro_3d_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	static const char *name = "gyro_3d";
+	struct iio_dev *indio_dev;
+	struct gyro_3d_state *gyro_state;
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_chan_spec *channels;
+
+	indio_dev = iio_device_alloc(sizeof(struct gyro_3d_state));
+	if (indio_dev == NULL) {
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+	platform_set_drvdata(pdev, indio_dev);
+
+	gyro_state = iio_priv(indio_dev);
+	gyro_state->common_attributes.hsdev = hsdev;
+	gyro_state->common_attributes.pdev = pdev;
+
+	ret = hid_sensor_parse_common_attributes(hsdev,
+						HID_USAGE_SENSOR_GYRO_3D,
+						&gyro_state->common_attributes);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup common attributes\n");
+		goto error_free_dev;
+	}
+
+	channels = kmemdup(gyro_3d_channels,
+					sizeof(gyro_3d_channels),
+					GFP_KERNEL);
+	if (!channels) {
+		dev_err(&pdev->dev, "failed to duplicate channels\n");
+		goto error_free_dev;
+	}
+
+	ret = gyro_3d_parse_report(pdev, hsdev, channels,
+					HID_USAGE_SENSOR_GYRO_3D, gyro_state);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup attributes\n");
+		goto error_free_dev_mem;
+	}
+
+	indio_dev->channels = channels;
+	indio_dev->num_channels = ARRAY_SIZE(gyro_3d_channels);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &gyro_3d_info;
+	indio_dev->name = name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+		NULL, NULL);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
+		goto error_free_dev_mem;
+	}
+	gyro_state->common_attributes.data_ready = false;
+	ret = hid_sensor_setup_trigger(indio_dev, name,
+					&gyro_state->common_attributes);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "trigger setup failed\n");
+		goto error_unreg_buffer_funcs;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "device register failed\n");
+		goto error_remove_trigger;
+	}
+
+	gyro_state->callbacks.send_event = gyro_3d_proc_event;
+	gyro_state->callbacks.capture_sample = gyro_3d_capture_sample;
+	gyro_state->callbacks.pdev = pdev;
+	ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_GYRO_3D,
+					&gyro_state->callbacks);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "callback reg failed\n");
+		goto error_iio_unreg;
+	}
+
+	return ret;
+
+error_iio_unreg:
+	iio_device_unregister(indio_dev);
+error_remove_trigger:
+	hid_sensor_remove_trigger(indio_dev);
+error_unreg_buffer_funcs:
+	iio_triggered_buffer_cleanup(indio_dev);
+error_free_dev_mem:
+	kfree(indio_dev->channels);
+error_free_dev:
+	iio_device_free(indio_dev);
+error_ret:
+	return ret;
+}
+
+/* Function to deinitialize the processing for usage id */
+static int __devinit hid_gyro_3d_remove(struct platform_device *pdev)
+{
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+
+	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_GYRO_3D);
+	iio_device_unregister(indio_dev);
+	hid_sensor_remove_trigger(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	kfree(indio_dev->channels);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static struct platform_driver hid_gyro_3d_platform_driver = {
+	.driver = {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= hid_gyro_3d_probe,
+	.remove		= hid_gyro_3d_remove,
+};
+module_platform_driver(hid_gyro_3d_platform_driver);
+
+MODULE_DESCRIPTION("HID Sensor Gyroscope 3D");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 4add9bb40ee..d4ad37455a6 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -422,7 +422,7 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 			ret = indio_dev->setup_ops->preenable(indio_dev);
 			if (ret) {
 				printk(KERN_ERR
-				       "Buffer not started:"
+				       "Buffer not started: "
 				       "buffer preenable failed\n");
 				goto error_ret;
 			}
@@ -431,12 +431,12 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 			ret = buffer->access->request_update(buffer);
 			if (ret) {
 				printk(KERN_INFO
-				       "Buffer not started:"
+				       "Buffer not started: "
 				       "buffer parameter update failed\n");
 				goto error_ret;
 			}
 		}
-		/* Definitely possible for devices to support both of these.*/
+		/* Definitely possible for devices to support both of these. */
 		if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) {
 			if (!indio_dev->trig) {
 				printk(KERN_INFO
@@ -456,7 +456,7 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 			ret = indio_dev->setup_ops->postenable(indio_dev);
 			if (ret) {
 				printk(KERN_INFO
-				       "Buffer not started:"
+				       "Buffer not started: "
 				       "postenable failed\n");
 				indio_dev->currentmode = previous_mode;
 				if (indio_dev->setup_ops->postdisable)
@@ -657,7 +657,7 @@ EXPORT_SYMBOL_GPL(iio_scan_mask_query);
 /**
  * struct iio_demux_table() - table describing demux memcpy ops
  * @from:	index to copy from
- * @to:	index to copy to
+ * @to:		index to copy to
  * @length:	how many bytes to copy
  * @l:		list head used for management
  */
@@ -682,12 +682,11 @@ static unsigned char *iio_demux(struct iio_buffer *buffer,
 	return buffer->demux_bounce;
 }
 
-int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data,
-		       s64 timestamp)
+int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data)
 {
 	unsigned char *dataout = iio_demux(buffer, data);
 
-	return buffer->access->store_to(buffer, dataout, timestamp);
+	return buffer->access->store_to(buffer, dataout);
 }
 EXPORT_SYMBOL_GPL(iio_push_to_buffer);
 
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 2ec266ef41a..6eb24dbc081 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -29,7 +29,7 @@
 #include <linux/iio/sysfs.h>
 #include <linux/iio/events.h>
 
-/* IDA to assign each registered device a unique id*/
+/* IDA to assign each registered device a unique id */
 static DEFINE_IDA(iio_ida);
 
 static dev_t iio_devt;
@@ -99,6 +99,7 @@ static const char * const iio_chan_info_postfix[] = {
 	[IIO_CHAN_INFO_FREQUENCY] = "frequency",
 	[IIO_CHAN_INFO_PHASE] = "phase",
 	[IIO_CHAN_INFO_HARDWAREGAIN] = "hardwaregain",
+	[IIO_CHAN_INFO_HYSTERESIS] = "hysteresis",
 };
 
 const struct iio_chan_spec
@@ -365,6 +366,7 @@ static ssize_t iio_read_channel_info(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
+	unsigned long long tmp;
 	int val, val2;
 	bool scale_db = false;
 	int ret = indio_dev->info->read_raw(indio_dev, this_attr->c,
@@ -390,6 +392,11 @@ static ssize_t iio_read_channel_info(struct device *dev,
 			return sprintf(buf, "-%d.%09u\n", val, -val2);
 		else
 			return sprintf(buf, "%d.%09u\n", val, val2);
+	case IIO_VAL_FRACTIONAL:
+		tmp = div_s64((s64)val * 1000000000LL, val2);
+		val2 = do_div(tmp, 1000000000LL);
+		val = tmp;
+		return sprintf(buf, "%d.%09u\n", val, val2);
 	default:
 		return 0;
 	}
@@ -729,7 +736,7 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev)
 	attrcount = attrcount_orig;
 	/*
 	 * New channel registration method - relies on the fact a group does
-	 * not need to be initialized if it is name is NULL.
+	 * not need to be initialized if its name is NULL.
 	 */
 	if (indio_dev->channels)
 		for (i = 0; i < indio_dev->num_channels; i++) {
@@ -980,6 +987,6 @@ EXPORT_SYMBOL(iio_device_unregister);
 subsys_initcall(iio_init);
 module_exit(iio_exit);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("Industrial I/O core");
 MODULE_LICENSE("GPL");
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index b5afc2ff34f..f2b78d4fe45 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -111,6 +111,7 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name)
 {
 	struct iio_map_internal *c_i = NULL, *c = NULL;
 	struct iio_channel *channel;
+	int err;
 
 	if (name == NULL && channel_name == NULL)
 		return ERR_PTR(-ENODEV);
@@ -130,18 +131,32 @@ struct iio_channel *iio_channel_get(const char *name, const char *channel_name)
 	if (c == NULL)
 		return ERR_PTR(-ENODEV);
 
-	channel = kmalloc(sizeof(*channel), GFP_KERNEL);
-	if (channel == NULL)
-		return ERR_PTR(-ENOMEM);
+	channel = kzalloc(sizeof(*channel), GFP_KERNEL);
+	if (channel == NULL) {
+		err = -ENOMEM;
+		goto error_no_mem;
+	}
 
 	channel->indio_dev = c->indio_dev;
 
-	if (c->map->adc_channel_label)
+	if (c->map->adc_channel_label) {
 		channel->channel =
 			iio_chan_spec_from_name(channel->indio_dev,
 						c->map->adc_channel_label);
 
+		if (channel->channel == NULL) {
+			err = -EINVAL;
+			goto error_no_chan;
+		}
+	}
+
 	return channel;
+
+error_no_chan:
+	kfree(channel);
+error_no_mem:
+	iio_device_put(c->indio_dev);
+	return ERR_PTR(err);
 }
 EXPORT_SYMBOL_GPL(iio_channel_get);
 
@@ -229,9 +244,21 @@ void iio_channel_release_all(struct iio_channel *channels)
 }
 EXPORT_SYMBOL_GPL(iio_channel_release_all);
 
+static int iio_channel_read(struct iio_channel *chan, int *val, int *val2,
+	enum iio_chan_info_enum info)
+{
+	int unused;
+
+	if (val2 == NULL)
+		val2 = &unused;
+
+	return chan->indio_dev->info->read_raw(chan->indio_dev, chan->channel,
+						val, val2, info);
+}
+
 int iio_read_channel_raw(struct iio_channel *chan, int *val)
 {
-	int val2, ret;
+	int ret;
 
 	mutex_lock(&chan->indio_dev->info_exist_lock);
 	if (chan->indio_dev->info == NULL) {
@@ -239,8 +266,7 @@ int iio_read_channel_raw(struct iio_channel *chan, int *val)
 		goto err_unlock;
 	}
 
-	ret = chan->indio_dev->info->read_raw(chan->indio_dev, chan->channel,
-					      val, &val2, 0);
+	ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_RAW);
 err_unlock:
 	mutex_unlock(&chan->indio_dev->info_exist_lock);
 
@@ -248,6 +274,100 @@ err_unlock:
 }
 EXPORT_SYMBOL_GPL(iio_read_channel_raw);
 
+static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
+	int raw, int *processed, unsigned int scale)
+{
+	int scale_type, scale_val, scale_val2, offset;
+	s64 raw64 = raw;
+	int ret;
+
+	ret = iio_channel_read(chan, &offset, NULL, IIO_CHAN_INFO_SCALE);
+	if (ret == 0)
+		raw64 += offset;
+
+	scale_type = iio_channel_read(chan, &scale_val, &scale_val2,
+					IIO_CHAN_INFO_SCALE);
+	if (scale_type < 0)
+		return scale_type;
+
+	switch (scale_type) {
+	case IIO_VAL_INT:
+		*processed = raw64 * scale_val;
+		break;
+	case IIO_VAL_INT_PLUS_MICRO:
+		if (scale_val2 < 0)
+			*processed = -raw64 * scale_val;
+		else
+			*processed = raw64 * scale_val;
+		*processed += div_s64(raw64 * (s64)scale_val2 * scale,
+				      1000000LL);
+		break;
+	case IIO_VAL_INT_PLUS_NANO:
+		if (scale_val2 < 0)
+			*processed = -raw64 * scale_val;
+		else
+			*processed = raw64 * scale_val;
+		*processed += div_s64(raw64 * (s64)scale_val2 * scale,
+				      1000000000LL);
+		break;
+	case IIO_VAL_FRACTIONAL:
+		*processed = div_s64(raw64 * (s64)scale_val * scale,
+				     scale_val2);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int iio_convert_raw_to_processed(struct iio_channel *chan, int raw,
+	int *processed, unsigned int scale)
+{
+	int ret;
+
+	mutex_lock(&chan->indio_dev->info_exist_lock);
+	if (chan->indio_dev->info == NULL) {
+		ret = -ENODEV;
+		goto err_unlock;
+	}
+
+	ret = iio_convert_raw_to_processed_unlocked(chan, raw, processed,
+							scale);
+err_unlock:
+	mutex_unlock(&chan->indio_dev->info_exist_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(iio_convert_raw_to_processed);
+
+int iio_read_channel_processed(struct iio_channel *chan, int *val)
+{
+	int ret;
+
+	mutex_lock(&chan->indio_dev->info_exist_lock);
+	if (chan->indio_dev->info == NULL) {
+		ret = -ENODEV;
+		goto err_unlock;
+	}
+
+	if (iio_channel_has_info(chan->channel, IIO_CHAN_INFO_PROCESSED)) {
+		ret = iio_channel_read(chan, val, NULL,
+				       IIO_CHAN_INFO_PROCESSED);
+	} else {
+		ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_RAW);
+		if (ret < 0)
+			goto err_unlock;
+		ret = iio_convert_raw_to_processed_unlocked(chan, *val, val, 1);
+	}
+
+err_unlock:
+	mutex_unlock(&chan->indio_dev->info_exist_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(iio_read_channel_processed);
+
 int iio_read_channel_scale(struct iio_channel *chan, int *val, int *val2)
 {
 	int ret;
@@ -258,10 +378,7 @@ int iio_read_channel_scale(struct iio_channel *chan, int *val, int *val2)
 		goto err_unlock;
 	}
 
-	ret = chan->indio_dev->info->read_raw(chan->indio_dev,
-					      chan->channel,
-					      val, val2,
-					      IIO_CHAN_INFO_SCALE);
+	ret = iio_channel_read(chan, val, val2, IIO_CHAN_INFO_SCALE);
 err_unlock:
 	mutex_unlock(&chan->indio_dev->info_exist_lock);
 
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index 6bf9d05f484..5bc5c860e9c 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -6,6 +6,7 @@
 #include <linux/kfifo.h>
 #include <linux/mutex.h>
 #include <linux/iio/kfifo_buf.h>
+#include <linux/sched.h>
 
 struct iio_kfifo {
 	struct iio_buffer buffer;
@@ -22,7 +23,8 @@ static inline int __iio_allocate_kfifo(struct iio_kfifo *buf,
 		return -EINVAL;
 
 	__iio_update_buffer(&buf->buffer, bytes_per_datum, length);
-	return kfifo_alloc(&buf->kf, bytes_per_datum*length, GFP_KERNEL);
+	return __kfifo_alloc((struct __kfifo *)&buf->kf, length,
+			     bytes_per_datum, GFP_KERNEL);
 }
 
 static int iio_request_update_kfifo(struct iio_buffer *r)
@@ -35,6 +37,7 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
 	kfifo_free(&buf->kf);
 	ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
 				   buf->buffer.length);
+	r->stufftoread = false;
 error_ret:
 	return ret;
 }
@@ -81,6 +84,9 @@ static int iio_set_bytes_per_datum_kfifo(struct iio_buffer *r, size_t bpd)
 
 static int iio_set_length_kfifo(struct iio_buffer *r, int length)
 {
+	/* Avoid an invalid state */
+	if (length < 2)
+		length = 2;
 	if (r->length != length) {
 		r->length = length;
 		iio_mark_update_needed_kfifo(r);
@@ -89,14 +95,16 @@ static int iio_set_length_kfifo(struct iio_buffer *r, int length)
 }
 
 static int iio_store_to_kfifo(struct iio_buffer *r,
-			      u8 *data,
-			      s64 timestamp)
+			      u8 *data)
 {
 	int ret;
 	struct iio_kfifo *kf = iio_to_kfifo(r);
-	ret = kfifo_in(&kf->kf, data, r->bytes_per_datum);
-	if (ret != r->bytes_per_datum)
+	ret = kfifo_in(&kf->kf, data, 1);
+	if (ret != 1)
 		return -EBUSY;
+	r->stufftoread = true;
+	wake_up_interruptible(&r->pollq);
+
 	return 0;
 }
 
@@ -106,11 +114,18 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 	int ret, copied;
 	struct iio_kfifo *kf = iio_to_kfifo(r);
 
-	if (n < r->bytes_per_datum)
+	if (n < r->bytes_per_datum || r->bytes_per_datum == 0)
 		return -EINVAL;
 
-	n = rounddown(n, r->bytes_per_datum);
 	ret = kfifo_to_user(&kf->kf, buf, n, &copied);
+	if (ret < 0)
+		return ret;
+
+	if (kfifo_is_empty(&kf->kf))
+		r->stufftoread = false;
+	/* verify it is still empty to avoid race */
+	if (!kfifo_is_empty(&kf->kf))
+		r->stufftoread = true;
 
 	return copied;
 }
@@ -136,7 +151,7 @@ struct iio_buffer *iio_kfifo_allocate(struct iio_dev *indio_dev)
 	iio_buffer_init(&kf->buffer);
 	kf->buffer.attrs = &iio_kfifo_attribute_group;
 	kf->buffer.access = &kfifo_access_funcs;
-
+	kf->buffer.length = 2;
 	return &kf->buffer;
 }
 EXPORT_SYMBOL(iio_kfifo_allocate);
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index 91d15d2f694..1763c9bcb98 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -42,4 +42,14 @@ config VCNL4000
 	 To compile this driver as a module, choose M here: the
 	 module will be called vcnl4000.
 
+config HID_SENSOR_ALS
+	depends on HID_SENSOR_HUB
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	select HID_SENSOR_IIO_COMMON
+	tristate "HID ALS"
+	help
+	  Say yes here to build support for the HID SENSOR
+	  Ambient light sensor.
+
 endmenu
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index 13f8a782d29..21a8f0df140 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -5,3 +5,4 @@
 obj-$(CONFIG_ADJD_S311)		+= adjd_s311.o
 obj-$(CONFIG_SENSORS_LM3533)	+= lm3533-als.o
 obj-$(CONFIG_VCNL4000)		+= vcnl4000.o
+obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index 1cbb449b319..164b62b91a4 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -187,7 +187,7 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
 			= time_ns;
-	iio_push_to_buffer(buffer, (u8 *)data->buffer, time_ns);
+	iio_push_to_buffer(buffer, (u8 *)data->buffer);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
@@ -271,9 +271,10 @@ static int adjd_s311_update_scan_mode(struct iio_dev *indio_dev,
 	const unsigned long *scan_mask)
 {
 	struct adjd_s311_data *data = iio_priv(indio_dev);
-	data->buffer = krealloc(data->buffer, indio_dev->scan_bytes,
-				GFP_KERNEL);
-	if (!data->buffer)
+
+	kfree(data->buffer);
+	data->buffer = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
+	if (data->buffer == NULL)
 		return -ENOMEM;
 
 	return 0;
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
new file mode 100644
index 00000000000..96e3691e42c
--- /dev/null
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -0,0 +1,385 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include "../common/hid-sensors/hid-sensor-attributes.h"
+#include "../common/hid-sensors/hid-sensor-trigger.h"
+
+/*Format: HID-SENSOR-usage_id_in_hex*/
+/*Usage ID from spec for Accelerometer-3D: 0x200041*/
+#define DRIVER_NAME "HID-SENSOR-200041"
+
+#define CHANNEL_SCAN_INDEX_ILLUM 0
+
+struct als_state {
+	struct hid_sensor_hub_callbacks callbacks;
+	struct hid_sensor_iio_common common_attributes;
+	struct hid_sensor_hub_attribute_info als_illum;
+	u32 illum;
+};
+
+/* Channel definitions */
+static const struct iio_chan_spec als_channels[] = {
+	{
+		.type = IIO_INTENSITY,
+		.modified = 1,
+		.channel2 = IIO_MOD_LIGHT_BOTH,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_ILLUM,
+	}
+};
+
+/* Adjust channel real bits based on report descriptor */
+static void als_adjust_channel_bit_mask(struct iio_chan_spec *channels,
+					int channel, int size)
+{
+	channels[channel].scan_type.sign = 's';
+	/* Real storage bits will change based on the report desc. */
+	channels[channel].scan_type.realbits = size * 8;
+	/* Maximum size of a sample to capture is u32 */
+	channels[channel].scan_type.storagebits = sizeof(u32) * 8;
+}
+
+/* Channel read_raw handler */
+static int als_read_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int *val, int *val2,
+			      long mask)
+{
+	struct als_state *als_state = iio_priv(indio_dev);
+	int report_id = -1;
+	u32 address;
+	int ret;
+	int ret_type;
+
+	*val = 0;
+	*val2 = 0;
+	switch (mask) {
+	case 0:
+		switch (chan->scan_index) {
+		case  CHANNEL_SCAN_INDEX_ILLUM:
+			report_id = als_state->als_illum.report_id;
+			address =
+			HID_USAGE_SENSOR_LIGHT_ILLUM;
+			break;
+		default:
+			report_id = -1;
+			break;
+		}
+		if (report_id >= 0)
+			*val = sensor_hub_input_attr_get_raw_value(
+				als_state->common_attributes.hsdev,
+				HID_USAGE_SENSOR_ALS, address,
+				report_id);
+		else {
+			*val = 0;
+			return -EINVAL;
+		}
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = als_state->als_illum.units;
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = hid_sensor_convert_exponent(
+				als_state->als_illum.unit_expo);
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_read_samp_freq_value(
+				&als_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_read_raw_hyst_value(
+				&als_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret_type = -EINVAL;
+		break;
+	}
+
+	return ret_type;
+}
+
+/* Channel write_raw handler */
+static int als_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct als_state *als_state = iio_priv(indio_dev);
+	int ret = 0;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_write_samp_freq_value(
+				&als_state->common_attributes, val, val2);
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_write_raw_hyst_value(
+				&als_state->common_attributes, val, val2);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int als_write_raw_get_fmt(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       long mask)
+{
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static const struct iio_info als_info = {
+	.driver_module = THIS_MODULE,
+	.read_raw = &als_read_raw,
+	.write_raw = &als_write_raw,
+	.write_raw_get_fmt = &als_write_raw_get_fmt,
+};
+
+/* Function to push data to buffer */
+static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+{
+	struct iio_buffer *buffer = indio_dev->buffer;
+	int datum_sz;
+
+	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
+	if (!buffer) {
+		dev_err(&indio_dev->dev, "Buffer == NULL\n");
+		return;
+	}
+	datum_sz = buffer->access->get_bytes_per_datum(buffer);
+	if (len > datum_sz) {
+		dev_err(&indio_dev->dev, "Datum size mismatch %d:%d\n", len,
+				datum_sz);
+		return;
+	}
+	iio_push_to_buffer(buffer, (u8 *)data);
+}
+
+/* Callback handler to send event after all samples are received and captured */
+static int als_proc_event(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct als_state *als_state = iio_priv(indio_dev);
+
+	dev_dbg(&indio_dev->dev, "als_proc_event [%d]\n",
+				als_state->common_attributes.data_ready);
+	if (als_state->common_attributes.data_ready)
+		hid_sensor_push_data(indio_dev,
+				(u8 *)&als_state->illum,
+				sizeof(als_state->illum));
+
+	return 0;
+}
+
+/* Capture samples in local storage */
+static int als_capture_sample(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				size_t raw_len, char *raw_data,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct als_state *als_state = iio_priv(indio_dev);
+	int ret = -EINVAL;
+
+	switch (usage_id) {
+	case HID_USAGE_SENSOR_LIGHT_ILLUM:
+		als_state->illum = *(u32 *)raw_data;
+		ret = 0;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+/* Parse report which is specific to an usage id*/
+static int als_parse_report(struct platform_device *pdev,
+				struct hid_sensor_hub_device *hsdev,
+				struct iio_chan_spec *channels,
+				unsigned usage_id,
+				struct als_state *st)
+{
+	int ret;
+
+	ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT,
+			usage_id,
+			HID_USAGE_SENSOR_LIGHT_ILLUM,
+			&st->als_illum);
+	if (ret < 0)
+		return ret;
+	als_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_ILLUM,
+					st->als_illum.size);
+
+	dev_dbg(&pdev->dev, "als %x:%x\n", st->als_illum.index,
+			st->als_illum.report_id);
+
+	return ret;
+}
+
+/* Function to initialize the processing for usage id */
+static int __devinit hid_als_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	static const char *name = "als";
+	struct iio_dev *indio_dev;
+	struct als_state *als_state;
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_chan_spec *channels;
+
+	indio_dev = iio_device_alloc(sizeof(struct als_state));
+	if (indio_dev == NULL) {
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+	platform_set_drvdata(pdev, indio_dev);
+
+	als_state = iio_priv(indio_dev);
+	als_state->common_attributes.hsdev = hsdev;
+	als_state->common_attributes.pdev = pdev;
+
+	ret = hid_sensor_parse_common_attributes(hsdev, HID_USAGE_SENSOR_ALS,
+					&als_state->common_attributes);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup common attributes\n");
+		goto error_free_dev;
+	}
+
+	channels = kmemdup(als_channels,
+					sizeof(als_channels),
+					GFP_KERNEL);
+	if (!channels) {
+		dev_err(&pdev->dev, "failed to duplicate channels\n");
+		goto error_free_dev;
+	}
+
+	ret = als_parse_report(pdev, hsdev, channels,
+				HID_USAGE_SENSOR_ALS, als_state);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup attributes\n");
+		goto error_free_dev_mem;
+	}
+
+	indio_dev->channels = channels;
+	indio_dev->num_channels =
+				ARRAY_SIZE(als_channels);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &als_info;
+	indio_dev->name = name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+		NULL, NULL);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
+		goto error_free_dev_mem;
+	}
+	als_state->common_attributes.data_ready = false;
+	ret = hid_sensor_setup_trigger(indio_dev, name,
+				&als_state->common_attributes);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "trigger setup failed\n");
+		goto error_unreg_buffer_funcs;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "device register failed\n");
+		goto error_remove_trigger;
+	}
+
+	als_state->callbacks.send_event = als_proc_event;
+	als_state->callbacks.capture_sample = als_capture_sample;
+	als_state->callbacks.pdev = pdev;
+	ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_ALS,
+					&als_state->callbacks);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "callback reg failed\n");
+		goto error_iio_unreg;
+	}
+
+	return ret;
+
+error_iio_unreg:
+	iio_device_unregister(indio_dev);
+error_remove_trigger:
+	hid_sensor_remove_trigger(indio_dev);
+error_unreg_buffer_funcs:
+	iio_triggered_buffer_cleanup(indio_dev);
+error_free_dev_mem:
+	kfree(indio_dev->channels);
+error_free_dev:
+	iio_device_free(indio_dev);
+error_ret:
+	return ret;
+}
+
+/* Function to deinitialize the processing for usage id */
+static int __devinit hid_als_remove(struct platform_device *pdev)
+{
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+
+	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ALS);
+	iio_device_unregister(indio_dev);
+	hid_sensor_remove_trigger(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	kfree(indio_dev->channels);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static struct platform_driver hid_als_platform_driver = {
+	.driver = {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= hid_als_probe,
+	.remove		= hid_als_remove,
+};
+module_platform_driver(hid_als_platform_driver);
+
+MODULE_DESCRIPTION("HID Sensor ALS");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index c3e7bac1312..e45712a921c 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -404,7 +404,7 @@ out:
 	return ret;
 }
 
-static int show_thresh_either_en(struct device *dev,
+static ssize_t show_thresh_either_en(struct device *dev,
 					struct device_attribute *attr,
 					char *buf)
 {
@@ -424,7 +424,7 @@ static int show_thresh_either_en(struct device *dev,
 	return scnprintf(buf, PAGE_SIZE, "%u\n", enable);
 }
 
-static int store_thresh_either_en(struct device *dev,
+static ssize_t store_thresh_either_en(struct device *dev,
 					struct device_attribute *attr,
 					const char *buf, size_t len)
 {
diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig
new file mode 100644
index 00000000000..c1f0cdd5703
--- /dev/null
+++ b/drivers/iio/magnetometer/Kconfig
@@ -0,0 +1,16 @@
+#
+# Magnetometer sensors
+#
+menu "Magnetometer sensors"
+
+config HID_SENSOR_MAGNETOMETER_3D
+	depends on HID_SENSOR_HUB
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	select HID_SENSOR_IIO_COMMON
+	tristate "HID Magenetometer 3D"
+	help
+	  Say yes here to build support for the HID SENSOR
+	  Magnetometer 3D.
+
+endmenu
diff --git a/drivers/iio/magnetometer/Makefile b/drivers/iio/magnetometer/Makefile
new file mode 100644
index 00000000000..60dc4f2b196
--- /dev/null
+++ b/drivers/iio/magnetometer/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for industrial I/O Magnetometer sensor drivers
+#
+
+obj-$(CONFIG_HID_SENSOR_MAGNETOMETER_3D) += hid-sensor-magn-3d.o
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
new file mode 100644
index 00000000000..c4f0d274f57
--- /dev/null
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -0,0 +1,419 @@
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include "../common/hid-sensors/hid-sensor-attributes.h"
+#include "../common/hid-sensors/hid-sensor-trigger.h"
+
+/*Format: HID-SENSOR-usage_id_in_hex*/
+/*Usage ID from spec for Magnetometer-3D: 0x200083*/
+#define DRIVER_NAME "HID-SENSOR-200083"
+
+enum magn_3d_channel {
+	CHANNEL_SCAN_INDEX_X,
+	CHANNEL_SCAN_INDEX_Y,
+	CHANNEL_SCAN_INDEX_Z,
+	MAGN_3D_CHANNEL_MAX,
+};
+
+struct magn_3d_state {
+	struct hid_sensor_hub_callbacks callbacks;
+	struct hid_sensor_iio_common common_attributes;
+	struct hid_sensor_hub_attribute_info magn[MAGN_3D_CHANNEL_MAX];
+	u32 magn_val[MAGN_3D_CHANNEL_MAX];
+};
+
+static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = {
+	HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS,
+	HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS,
+	HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS
+};
+
+/* Channel definitions */
+static const struct iio_chan_spec magn_3d_channels[] = {
+	{
+		.type = IIO_MAGN,
+		.modified = 1,
+		.channel2 = IIO_MOD_X,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_X,
+	}, {
+		.type = IIO_MAGN,
+		.modified = 1,
+		.channel2 = IIO_MOD_Y,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_Y,
+	}, {
+		.type = IIO_MAGN,
+		.modified = 1,
+		.channel2 = IIO_MOD_Z,
+		.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT |
+		IIO_CHAN_INFO_HYSTERESIS_SHARED_BIT,
+		.scan_index = CHANNEL_SCAN_INDEX_Z,
+	}
+};
+
+/* Adjust channel real bits based on report descriptor */
+static void magn_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels,
+						int channel, int size)
+{
+	channels[channel].scan_type.sign = 's';
+	/* Real storage bits will change based on the report desc. */
+	channels[channel].scan_type.realbits = size * 8;
+	/* Maximum size of a sample to capture is u32 */
+	channels[channel].scan_type.storagebits = sizeof(u32) * 8;
+}
+
+/* Channel read_raw handler */
+static int magn_3d_read_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int *val, int *val2,
+			      long mask)
+{
+	struct magn_3d_state *magn_state = iio_priv(indio_dev);
+	int report_id = -1;
+	u32 address;
+	int ret;
+	int ret_type;
+
+	*val = 0;
+	*val2 = 0;
+	switch (mask) {
+	case 0:
+		report_id =
+			magn_state->magn[chan->scan_index].report_id;
+		address = magn_3d_addresses[chan->scan_index];
+		if (report_id >= 0)
+			*val = sensor_hub_input_attr_get_raw_value(
+				magn_state->common_attributes.hsdev,
+				HID_USAGE_SENSOR_COMPASS_3D, address,
+				report_id);
+		else {
+			*val = 0;
+			return -EINVAL;
+		}
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = magn_state->magn[CHANNEL_SCAN_INDEX_X].units;
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = hid_sensor_convert_exponent(
+			magn_state->magn[CHANNEL_SCAN_INDEX_X].unit_expo);
+		ret_type = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_read_samp_freq_value(
+			&magn_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_read_raw_hyst_value(
+			&magn_state->common_attributes, val, val2);
+		ret_type = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret_type = -EINVAL;
+		break;
+	}
+
+	return ret_type;
+}
+
+/* Channel write_raw handler */
+static int magn_3d_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct magn_3d_state *magn_state = iio_priv(indio_dev);
+	int ret = 0;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = hid_sensor_write_samp_freq_value(
+				&magn_state->common_attributes, val, val2);
+		break;
+	case IIO_CHAN_INFO_HYSTERESIS:
+		ret = hid_sensor_write_raw_hyst_value(
+				&magn_state->common_attributes, val, val2);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int magn_3d_write_raw_get_fmt(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       long mask)
+{
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static const struct iio_info magn_3d_info = {
+	.driver_module = THIS_MODULE,
+	.read_raw = &magn_3d_read_raw,
+	.write_raw = &magn_3d_write_raw,
+	.write_raw_get_fmt = &magn_3d_write_raw_get_fmt,
+};
+
+/* Function to push data to buffer */
+static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+{
+	struct iio_buffer *buffer = indio_dev->buffer;
+	int datum_sz;
+
+	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
+	if (!buffer) {
+		dev_err(&indio_dev->dev, "Buffer == NULL\n");
+		return;
+	}
+	datum_sz = buffer->access->get_bytes_per_datum(buffer);
+	if (len > datum_sz) {
+		dev_err(&indio_dev->dev, "Datum size mismatch %d:%d\n", len,
+				datum_sz);
+		return;
+	}
+	iio_push_to_buffer(buffer, (u8 *)data);
+}
+
+/* Callback handler to send event after all samples are received and captured */
+static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct magn_3d_state *magn_state = iio_priv(indio_dev);
+
+	dev_dbg(&indio_dev->dev, "magn_3d_proc_event [%d]\n",
+				magn_state->common_attributes.data_ready);
+	if (magn_state->common_attributes.data_ready)
+		hid_sensor_push_data(indio_dev,
+				(u8 *)magn_state->magn_val,
+				sizeof(magn_state->magn_val));
+
+	return 0;
+}
+
+/* Capture samples in local storage */
+static int magn_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
+				unsigned usage_id,
+				size_t raw_len, char *raw_data,
+				void *priv)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(priv);
+	struct magn_3d_state *magn_state = iio_priv(indio_dev);
+	int offset;
+	int ret = -EINVAL;
+
+	switch (usage_id) {
+	case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS:
+	case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS:
+	case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS:
+		offset = usage_id - HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS;
+		magn_state->magn_val[CHANNEL_SCAN_INDEX_X + offset] =
+						*(u32 *)raw_data;
+		ret = 0;
+	break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+/* Parse report which is specific to an usage id*/
+static int magn_3d_parse_report(struct platform_device *pdev,
+				struct hid_sensor_hub_device *hsdev,
+				struct iio_chan_spec *channels,
+				unsigned usage_id,
+				struct magn_3d_state *st)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i <= CHANNEL_SCAN_INDEX_Z; ++i) {
+		ret = sensor_hub_input_get_attribute_info(hsdev,
+				HID_INPUT_REPORT,
+				usage_id,
+				HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS + i,
+				&st->magn[CHANNEL_SCAN_INDEX_X + i]);
+		if (ret < 0)
+			break;
+		magn_3d_adjust_channel_bit_mask(channels,
+				CHANNEL_SCAN_INDEX_X + i,
+				st->magn[CHANNEL_SCAN_INDEX_X + i].size);
+	}
+	dev_dbg(&pdev->dev, "magn_3d %x:%x, %x:%x, %x:%x\n",
+			st->magn[0].index,
+			st->magn[0].report_id,
+			st->magn[1].index, st->magn[1].report_id,
+			st->magn[2].index, st->magn[2].report_id);
+
+	return ret;
+}
+
+/* Function to initialize the processing for usage id */
+static int __devinit hid_magn_3d_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	static char *name = "magn_3d";
+	struct iio_dev *indio_dev;
+	struct magn_3d_state *magn_state;
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_chan_spec *channels;
+
+	indio_dev = iio_device_alloc(sizeof(struct magn_3d_state));
+	if (indio_dev == NULL) {
+		ret = -ENOMEM;
+		goto error_ret;
+	}
+	platform_set_drvdata(pdev, indio_dev);
+
+	magn_state = iio_priv(indio_dev);
+	magn_state->common_attributes.hsdev = hsdev;
+	magn_state->common_attributes.pdev = pdev;
+
+	ret = hid_sensor_parse_common_attributes(hsdev,
+				HID_USAGE_SENSOR_COMPASS_3D,
+				&magn_state->common_attributes);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup common attributes\n");
+		goto error_free_dev;
+	}
+
+	channels = kmemdup(magn_3d_channels,
+					sizeof(magn_3d_channels),
+					GFP_KERNEL);
+	if (!channels) {
+		dev_err(&pdev->dev, "failed to duplicate channels\n");
+		goto error_free_dev;
+	}
+
+	ret = magn_3d_parse_report(pdev, hsdev, channels,
+				HID_USAGE_SENSOR_COMPASS_3D, magn_state);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup attributes\n");
+		goto error_free_dev_mem;
+	}
+
+	indio_dev->channels = channels;
+	indio_dev->num_channels = ARRAY_SIZE(magn_3d_channels);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &magn_3d_info;
+	indio_dev->name = name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+		NULL, NULL);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
+		goto error_free_dev_mem;
+	}
+	magn_state->common_attributes.data_ready = false;
+	ret = hid_sensor_setup_trigger(indio_dev, name,
+					&magn_state->common_attributes);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "trigger setup failed\n");
+		goto error_unreg_buffer_funcs;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "device register failed\n");
+		goto error_remove_trigger;
+	}
+
+	magn_state->callbacks.send_event = magn_3d_proc_event;
+	magn_state->callbacks.capture_sample = magn_3d_capture_sample;
+	magn_state->callbacks.pdev = pdev;
+	ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D,
+					&magn_state->callbacks);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "callback reg failed\n");
+		goto error_iio_unreg;
+	}
+
+	return ret;
+
+error_iio_unreg:
+	iio_device_unregister(indio_dev);
+error_remove_trigger:
+	hid_sensor_remove_trigger(indio_dev);
+error_unreg_buffer_funcs:
+	iio_triggered_buffer_cleanup(indio_dev);
+error_free_dev_mem:
+	kfree(indio_dev->channels);
+error_free_dev:
+	iio_device_free(indio_dev);
+error_ret:
+	return ret;
+}
+
+/* Function to deinitialize the processing for usage id */
+static int __devinit hid_magn_3d_remove(struct platform_device *pdev)
+{
+	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+
+	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D);
+	iio_device_unregister(indio_dev);
+	hid_sensor_remove_trigger(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	kfree(indio_dev->channels);
+	iio_device_free(indio_dev);
+
+	return 0;
+}
+
+static struct platform_driver hid_magn_3d_platform_driver = {
+	.driver = {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= hid_magn_3d_probe,
+	.remove		= hid_magn_3d_remove,
+};
+module_platform_driver(hid_magn_3d_platform_driver);
+
+MODULE_DESCRIPTION("HID Sensor Magnetometer 3D");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index 28058ae33d3..eaec8d7a3b7 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -152,13 +152,11 @@ static void set_timeout(unsigned long time)
 {
 	unsigned long delay;
 
-	cancel_delayed_work(&work);
-
 	delay = time - jiffies;
 	if ((long)delay <= 0)
 		delay = 1;
 
-	queue_delayed_work(addr_wq, &work, delay);
+	mod_delayed_work(addr_wq, &work, delay);
 }
 
 static void queue_req(struct addr_req *req)
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 9353992f9ee..80f6cf2449f 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -167,6 +167,7 @@ int ib_find_cached_pkey(struct ib_device *device,
 	unsigned long flags;
 	int i;
 	int ret = -ENOENT;
+	int partial_ix = -1;
 
 	if (port_num < start_port(device) || port_num > end_port(device))
 		return -EINVAL;
@@ -179,6 +180,46 @@ int ib_find_cached_pkey(struct ib_device *device,
 
 	for (i = 0; i < cache->table_len; ++i)
 		if ((cache->table[i] & 0x7fff) == (pkey & 0x7fff)) {
+			if (cache->table[i] & 0x8000) {
+				*index = i;
+				ret = 0;
+				break;
+			} else
+				partial_ix = i;
+		}
+
+	if (ret && partial_ix >= 0) {
+		*index = partial_ix;
+		ret = 0;
+	}
+
+	read_unlock_irqrestore(&device->cache.lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(ib_find_cached_pkey);
+
+int ib_find_exact_cached_pkey(struct ib_device *device,
+			      u8                port_num,
+			      u16               pkey,
+			      u16              *index)
+{
+	struct ib_pkey_cache *cache;
+	unsigned long flags;
+	int i;
+	int ret = -ENOENT;
+
+	if (port_num < start_port(device) || port_num > end_port(device))
+		return -EINVAL;
+
+	read_lock_irqsave(&device->cache.lock, flags);
+
+	cache = device->cache.pkey_cache[port_num - start_port(device)];
+
+	*index = -1;
+
+	for (i = 0; i < cache->table_len; ++i)
+		if (cache->table[i] == pkey) {
 			*index = i;
 			ret = 0;
 			break;
@@ -188,7 +229,7 @@ int ib_find_cached_pkey(struct ib_device *device,
 
 	return ret;
 }
-EXPORT_SYMBOL(ib_find_cached_pkey);
+EXPORT_SYMBOL(ib_find_exact_cached_pkey);
 
 int ib_get_cached_lmc(struct ib_device *device,
 		      u8                port_num,
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 7172559ce0c..26b37603dcf 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3058,7 +3058,10 @@ static int cma_join_ib_multicast(struct rdma_id_private *id_priv,
 
 	if (id_priv->id.ps == RDMA_PS_IPOIB)
 		comp_mask |= IB_SA_MCMEMBER_REC_RATE |
-			     IB_SA_MCMEMBER_REC_RATE_SELECTOR;
+			     IB_SA_MCMEMBER_REC_RATE_SELECTOR |
+			     IB_SA_MCMEMBER_REC_MTU_SELECTOR |
+			     IB_SA_MCMEMBER_REC_MTU |
+			     IB_SA_MCMEMBER_REC_HOP_LIMIT;
 
 	mc->multicast.ib = ib_sa_join_multicast(&sa_client, id_priv->id.device,
 						id_priv->id.port_num, &rec,
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index e711de400a0..18c1ece765f 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -707,18 +707,28 @@ int ib_find_pkey(struct ib_device *device,
 {
 	int ret, i;
 	u16 tmp_pkey;
+	int partial_ix = -1;
 
 	for (i = 0; i < device->pkey_tbl_len[port_num - start_port(device)]; ++i) {
 		ret = ib_query_pkey(device, port_num, i, &tmp_pkey);
 		if (ret)
 			return ret;
-
 		if ((pkey & 0x7fff) == (tmp_pkey & 0x7fff)) {
-			*index = i;
-			return 0;
+			/* if there is full-member pkey take it.*/
+			if (tmp_pkey & 0x8000) {
+				*index = i;
+				return 0;
+			}
+			if (partial_ix < 0)
+				partial_ix = i;
 		}
 	}
 
+	/*no full-member, if exists take the limited*/
+	if (partial_ix >= 0) {
+		*index = partial_ix;
+		return 0;
+	}
 	return -ENOENT;
 }
 EXPORT_SYMBOL(ib_find_pkey);
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index b0d0bc8a6fb..dc3fd1e8af0 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -2004,7 +2004,7 @@ static void adjust_timeout(struct ib_mad_agent_private *mad_agent_priv)
 	unsigned long delay;
 
 	if (list_empty(&mad_agent_priv->wait_list)) {
-		__cancel_delayed_work(&mad_agent_priv->timed_work);
+		cancel_delayed_work(&mad_agent_priv->timed_work);
 	} else {
 		mad_send_wr = list_entry(mad_agent_priv->wait_list.next,
 					 struct ib_mad_send_wr_private,
@@ -2013,13 +2013,11 @@ static void adjust_timeout(struct ib_mad_agent_private *mad_agent_priv)
 		if (time_after(mad_agent_priv->timeout,
 			       mad_send_wr->timeout)) {
 			mad_agent_priv->timeout = mad_send_wr->timeout;
-			__cancel_delayed_work(&mad_agent_priv->timed_work);
 			delay = mad_send_wr->timeout - jiffies;
 			if ((long)delay <= 0)
 				delay = 1;
-			queue_delayed_work(mad_agent_priv->qp_info->
-					   port_priv->wq,
-					   &mad_agent_priv->timed_work, delay);
+			mod_delayed_work(mad_agent_priv->qp_info->port_priv->wq,
+					 &mad_agent_priv->timed_work, delay);
 		}
 	}
 }
@@ -2052,11 +2050,9 @@ static void wait_for_response(struct ib_mad_send_wr_private *mad_send_wr)
 	list_add(&mad_send_wr->agent_list, list_item);
 
 	/* Reschedule a work item if we have a shorter timeout */
-	if (mad_agent_priv->wait_list.next == &mad_send_wr->agent_list) {
-		__cancel_delayed_work(&mad_agent_priv->timed_work);
-		queue_delayed_work(mad_agent_priv->qp_info->port_priv->wq,
-				   &mad_agent_priv->timed_work, delay);
-	}
+	if (mad_agent_priv->wait_list.next == &mad_send_wr->agent_list)
+		mod_delayed_work(mad_agent_priv->qp_info->port_priv->wq,
+				 &mad_agent_priv->timed_work, delay);
 }
 
 void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr,
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index 3ae2bfd3101..fe10a949aef 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -177,7 +177,7 @@ int __init ibnl_init(void)
 		.input	= ibnl_rcv,
 	};
 
-	nls = netlink_kernel_create(&init_net, NETLINK_RDMA, THIS_MODULE, &cfg);
+	nls = netlink_kernel_create(&init_net, NETLINK_RDMA, &cfg);
 	if (!nls) {
 		pr_warn("Failed to create netlink socket\n");
 		return -ENOMEM;
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index 06f08713f48..49b15ac1987 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -397,7 +397,6 @@ static ssize_t ib_ucm_event(struct ib_ucm_file *file,
 	struct ib_ucm_event_get cmd;
 	struct ib_ucm_event *uevent;
 	int result = 0;
-	DEFINE_WAIT(wait);
 
 	if (out_len < sizeof(struct ib_ucm_event_resp))
 		return -ENOSPC;
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 6bf85042289..2709ff58139 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -267,6 +267,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
 	if (!uevent)
 		return event->event == RDMA_CM_EVENT_CONNECT_REQUEST;
 
+	mutex_lock(&ctx->file->mut);
 	uevent->cm_id = cm_id;
 	ucma_set_event_context(ctx, event, uevent);
 	uevent->resp.event = event->event;
@@ -277,7 +278,6 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
 		ucma_copy_conn_event(&uevent->resp.param.conn,
 				     &event->param.conn);
 
-	mutex_lock(&ctx->file->mut);
 	if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
 		if (!ctx->backlog) {
 			ret = -ENOMEM;
@@ -310,7 +310,6 @@ static ssize_t ucma_get_event(struct ucma_file *file, const char __user *inbuf,
 	struct rdma_ucm_get_event cmd;
 	struct ucma_event *uevent;
 	int ret = 0;
-	DEFINE_WAIT(wait);
 
 	if (out_len < sizeof uevent->resp)
 		return -ENOSPC;
@@ -1184,7 +1183,7 @@ static ssize_t ucma_migrate_id(struct ucma_file *new_file,
 	struct rdma_ucm_migrate_id cmd;
 	struct rdma_ucm_migrate_resp resp;
 	struct ucma_context *ctx;
-	struct file *filp;
+	struct fd f;
 	struct ucma_file *cur_file;
 	int ret = 0;
 
@@ -1192,12 +1191,12 @@ static ssize_t ucma_migrate_id(struct ucma_file *new_file,
 		return -EFAULT;
 
 	/* Get current fd to protect against it being closed */
-	filp = fget(cmd.fd);
-	if (!filp)
+	f = fdget(cmd.fd);
+	if (!f.file)
 		return -ENOENT;
 
 	/* Validate current fd and prevent destruction of id. */
-	ctx = ucma_get_ctx(filp->private_data, cmd.id);
+	ctx = ucma_get_ctx(f.file->private_data, cmd.id);
 	if (IS_ERR(ctx)) {
 		ret = PTR_ERR(ctx);
 		goto file_put;
@@ -1231,7 +1230,7 @@ response:
 
 	ucma_put_ctx(ctx);
 file_put:
-	fput(filp);
+	fdput(f);
 	return ret;
 }
 
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index f9d0d7c413a..0cb0007724a 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -705,7 +705,7 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
 	struct ib_udata			udata;
 	struct ib_uxrcd_object         *obj;
 	struct ib_xrcd                 *xrcd = NULL;
-	struct file                    *f = NULL;
+	struct fd			f = {NULL, 0};
 	struct inode                   *inode = NULL;
 	int				ret = 0;
 	int				new_xrcd = 0;
@@ -724,18 +724,13 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
 
 	if (cmd.fd != -1) {
 		/* search for file descriptor */
-		f = fget(cmd.fd);
-		if (!f) {
-			ret = -EBADF;
-			goto err_tree_mutex_unlock;
-		}
-
-		inode = f->f_dentry->d_inode;
-		if (!inode) {
+		f = fdget(cmd.fd);
+		if (!f.file) {
 			ret = -EBADF;
 			goto err_tree_mutex_unlock;
 		}
 
+		inode = f.file->f_path.dentry->d_inode;
 		xrcd = find_xrcd(file->device, inode);
 		if (!xrcd && !(cmd.oflags & O_CREAT)) {
 			/* no file descriptor. Need CREATE flag */
@@ -800,8 +795,8 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
 		goto err_copy;
 	}
 
-	if (f)
-		fput(f);
+	if (f.file)
+		fdput(f);
 
 	mutex_lock(&file->mutex);
 	list_add_tail(&obj->uobject.list, &file->ucontext->xrcd_list);
@@ -830,8 +825,8 @@ err:
 	put_uobj_write(&obj->uobject);
 
 err_tree_mutex_unlock:
-	if (f)
-		fput(f);
+	if (f.file)
+		fdput(f);
 
 	mutex_unlock(&file->device->xrcd_tree_mutex);
 
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 604556d73d2..6f2ce6fa98f 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -541,16 +541,15 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
 struct ib_uverbs_event_file *ib_uverbs_lookup_comp_file(int fd)
 {
 	struct ib_uverbs_event_file *ev_file = NULL;
-	struct file *filp;
+	struct fd f = fdget(fd);
 
-	filp = fget(fd);
-	if (!filp)
+	if (!f.file)
 		return NULL;
 
-	if (filp->f_op != &uverbs_event_fops)
+	if (f.file->f_op != &uverbs_event_fops)
 		goto out;
 
-	ev_file = filp->private_data;
+	ev_file = f.file->private_data;
 	if (ev_file->is_async) {
 		ev_file = NULL;
 		goto out;
@@ -559,7 +558,7 @@ struct ib_uverbs_event_file *ib_uverbs_lookup_comp_file(int fd)
 	kref_get(&ev_file->ref);
 
 out:
-	fput(filp);
+	fdput(f);
 	return ev_file;
 }
 
diff --git a/drivers/infiniband/hw/amso1100/c2_rnic.c b/drivers/infiniband/hw/amso1100/c2_rnic.c
index 8c81992fa6d..e4a73158fc7 100644
--- a/drivers/infiniband/hw/amso1100/c2_rnic.c
+++ b/drivers/infiniband/hw/amso1100/c2_rnic.c
@@ -439,7 +439,7 @@ static int c2_rnic_close(struct c2_dev *c2dev)
 
 /*
  * Called by c2_probe to initialize the RNIC. This principally
- * involves initalizing the various limits and resouce pools that
+ * involves initializing the various limits and resource pools that
  * comprise the RNIC instance.
  */
 int __devinit c2_rnic_init(struct c2_dev *c2dev)
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index 77b6b182778..aaf88ef9409 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -1680,7 +1680,7 @@ static int close_con_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
  * T3A does 3 things when a TERM is received:
  * 1) send up a CPL_RDMA_TERMINATE message with the TERM packet
  * 2) generate an async event on the QP with the TERMINATE opcode
- * 3) post a TERMINATE opcde cqe into the associated CQ.
+ * 3) post a TERMINATE opcode cqe into the associated CQ.
  *
  * For (1), we save the message in the qp for later consumer consumption.
  * For (2), we move the QP into TERMINATE, post a QP event and disconnect.
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 51f42061dae..6cfd4d8fd0b 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -1361,11 +1361,11 @@ static int abort_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
 	struct tid_info *t = dev->rdev.lldi.tids;
 
 	ep = lookup_tid(t, tid);
-	PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
 	if (!ep) {
 		printk(KERN_WARNING MOD "Abort rpl to freed endpoint\n");
 		return 0;
 	}
+	PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
 	mutex_lock(&ep->com.mutex);
 	switch (ep->com.state) {
 	case ABORTING:
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 45aedf1d933..05bfe53bff6 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -137,19 +137,25 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 		return -ENOMEM;
 
 	wq->rq.qid = c4iw_get_qpid(rdev, uctx);
-	if (!wq->rq.qid)
-		goto err1;
+	if (!wq->rq.qid) {
+		ret = -ENOMEM;
+		goto free_sq_qid;
+	}
 
 	if (!user) {
 		wq->sq.sw_sq = kzalloc(wq->sq.size * sizeof *wq->sq.sw_sq,
 				 GFP_KERNEL);
-		if (!wq->sq.sw_sq)
-			goto err2;
+		if (!wq->sq.sw_sq) {
+			ret = -ENOMEM;
+			goto free_rq_qid;
+		}
 
 		wq->rq.sw_rq = kzalloc(wq->rq.size * sizeof *wq->rq.sw_rq,
 				 GFP_KERNEL);
-		if (!wq->rq.sw_rq)
-			goto err3;
+		if (!wq->rq.sw_rq) {
+			ret = -ENOMEM;
+			goto free_sw_sq;
+		}
 	}
 
 	/*
@@ -157,15 +163,23 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 	 */
 	wq->rq.rqt_size = roundup_pow_of_two(wq->rq.size);
 	wq->rq.rqt_hwaddr = c4iw_rqtpool_alloc(rdev, wq->rq.rqt_size);
-	if (!wq->rq.rqt_hwaddr)
-		goto err4;
+	if (!wq->rq.rqt_hwaddr) {
+		ret = -ENOMEM;
+		goto free_sw_rq;
+	}
 
 	if (user) {
-		if (alloc_oc_sq(rdev, &wq->sq) && alloc_host_sq(rdev, &wq->sq))
-			goto err5;
+		ret = alloc_oc_sq(rdev, &wq->sq);
+		if (ret)
+			goto free_hwaddr;
+
+		ret = alloc_host_sq(rdev, &wq->sq);
+		if (ret)
+			goto free_sq;
 	} else
-		if (alloc_host_sq(rdev, &wq->sq))
-			goto err5;
+		ret = alloc_host_sq(rdev, &wq->sq);
+		if (ret)
+			goto free_hwaddr;
 	memset(wq->sq.queue, 0, wq->sq.memsize);
 	dma_unmap_addr_set(&wq->sq, mapping, wq->sq.dma_addr);
 
@@ -173,7 +187,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 					  wq->rq.memsize, &(wq->rq.dma_addr),
 					  GFP_KERNEL);
 	if (!wq->rq.queue)
-		goto err6;
+		goto free_sq;
 	PDBG("%s sq base va 0x%p pa 0x%llx rq base va 0x%p pa 0x%llx\n",
 		__func__, wq->sq.queue,
 		(unsigned long long)virt_to_phys(wq->sq.queue),
@@ -201,7 +215,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 	skb = alloc_skb(wr_len, GFP_KERNEL);
 	if (!skb) {
 		ret = -ENOMEM;
-		goto err7;
+		goto free_dma;
 	}
 	set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0);
 
@@ -266,33 +280,33 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 
 	ret = c4iw_ofld_send(rdev, skb);
 	if (ret)
-		goto err7;
+		goto free_dma;
 	ret = c4iw_wait_for_reply(rdev, &wr_wait, 0, wq->sq.qid, __func__);
 	if (ret)
-		goto err7;
+		goto free_dma;
 
 	PDBG("%s sqid 0x%x rqid 0x%x kdb 0x%p squdb 0x%llx rqudb 0x%llx\n",
 	     __func__, wq->sq.qid, wq->rq.qid, wq->db,
 	     (unsigned long long)wq->sq.udb, (unsigned long long)wq->rq.udb);
 
 	return 0;
-err7:
+free_dma:
 	dma_free_coherent(&(rdev->lldi.pdev->dev),
 			  wq->rq.memsize, wq->rq.queue,
 			  dma_unmap_addr(&wq->rq, mapping));
-err6:
+free_sq:
 	dealloc_sq(rdev, &wq->sq);
-err5:
+free_hwaddr:
 	c4iw_rqtpool_free(rdev, wq->rq.rqt_hwaddr, wq->rq.rqt_size);
-err4:
+free_sw_rq:
 	kfree(wq->rq.sw_rq);
-err3:
+free_sw_sq:
 	kfree(wq->sq.sw_sq);
-err2:
+free_rq_qid:
 	c4iw_put_qpid(rdev, wq->rq.qid, uctx);
-err1:
+free_sq_qid:
 	c4iw_put_qpid(rdev, wq->sq.qid, uctx);
-	return -ENOMEM;
+	return ret;
 }
 
 static int build_immd(struct t4_sq *sq, struct fw_ri_immd *immdp,
@@ -1155,7 +1169,7 @@ static int ring_kernel_db(struct c4iw_qp *qhp, u32 qid, u16 inc)
 		 */
 		if (cxgb4_dbfifo_count(qhp->rhp->rdev.lldi.ports[0], 1) <
 		    (qhp->rhp->rdev.lldi.dbfifo_int_thresh << 5)) {
-			writel(V_QID(qid) | V_PIDX(inc), qhp->wq.db);
+			writel(QID(qid) | PIDX(inc), qhp->wq.db);
 			break;
 		}
 		set_current_state(TASK_UNINTERRUPTIBLE);
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index 53589000fd0..8615d7cf7e0 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -42,6 +42,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/smpboot.h>
 
 #include "ehca_classes.h"
 #include "ehca_irq.h"
@@ -652,7 +653,7 @@ void ehca_tasklet_eq(unsigned long data)
 	ehca_process_eq((struct ehca_shca*)data, 1);
 }
 
-static inline int find_next_online_cpu(struct ehca_comp_pool *pool)
+static int find_next_online_cpu(struct ehca_comp_pool *pool)
 {
 	int cpu;
 	unsigned long flags;
@@ -662,17 +663,20 @@ static inline int find_next_online_cpu(struct ehca_comp_pool *pool)
 		ehca_dmp(cpu_online_mask, cpumask_size(), "");
 
 	spin_lock_irqsave(&pool->last_cpu_lock, flags);
-	cpu = cpumask_next(pool->last_cpu, cpu_online_mask);
-	if (cpu >= nr_cpu_ids)
-		cpu = cpumask_first(cpu_online_mask);
-	pool->last_cpu = cpu;
+	do {
+		cpu = cpumask_next(pool->last_cpu, cpu_online_mask);
+		if (cpu >= nr_cpu_ids)
+			cpu = cpumask_first(cpu_online_mask);
+		pool->last_cpu = cpu;
+	} while (!per_cpu_ptr(pool->cpu_comp_tasks, cpu)->active);
 	spin_unlock_irqrestore(&pool->last_cpu_lock, flags);
 
 	return cpu;
 }
 
 static void __queue_comp_task(struct ehca_cq *__cq,
-			      struct ehca_cpu_comp_task *cct)
+			      struct ehca_cpu_comp_task *cct,
+			      struct task_struct *thread)
 {
 	unsigned long flags;
 
@@ -683,7 +687,7 @@ static void __queue_comp_task(struct ehca_cq *__cq,
 		__cq->nr_callbacks++;
 		list_add_tail(&__cq->entry, &cct->cq_list);
 		cct->cq_jobs++;
-		wake_up(&cct->wait_queue);
+		wake_up_process(thread);
 	} else
 		__cq->nr_callbacks++;
 
@@ -695,6 +699,7 @@ static void queue_comp_task(struct ehca_cq *__cq)
 {
 	int cpu_id;
 	struct ehca_cpu_comp_task *cct;
+	struct task_struct *thread;
 	int cq_jobs;
 	unsigned long flags;
 
@@ -702,7 +707,8 @@ static void queue_comp_task(struct ehca_cq *__cq)
 	BUG_ON(!cpu_online(cpu_id));
 
 	cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu_id);
-	BUG_ON(!cct);
+	thread = *per_cpu_ptr(pool->cpu_comp_threads, cpu_id);
+	BUG_ON(!cct || !thread);
 
 	spin_lock_irqsave(&cct->task_lock, flags);
 	cq_jobs = cct->cq_jobs;
@@ -710,28 +716,25 @@ static void queue_comp_task(struct ehca_cq *__cq)
 	if (cq_jobs > 0) {
 		cpu_id = find_next_online_cpu(pool);
 		cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu_id);
-		BUG_ON(!cct);
+		thread = *per_cpu_ptr(pool->cpu_comp_threads, cpu_id);
+		BUG_ON(!cct || !thread);
 	}
-
-	__queue_comp_task(__cq, cct);
+	__queue_comp_task(__cq, cct, thread);
 }
 
 static void run_comp_task(struct ehca_cpu_comp_task *cct)
 {
 	struct ehca_cq *cq;
-	unsigned long flags;
-
-	spin_lock_irqsave(&cct->task_lock, flags);
 
 	while (!list_empty(&cct->cq_list)) {
 		cq = list_entry(cct->cq_list.next, struct ehca_cq, entry);
-		spin_unlock_irqrestore(&cct->task_lock, flags);
+		spin_unlock_irq(&cct->task_lock);
 
 		comp_event_callback(cq);
 		if (atomic_dec_and_test(&cq->nr_events))
 			wake_up(&cq->wait_completion);
 
-		spin_lock_irqsave(&cct->task_lock, flags);
+		spin_lock_irq(&cct->task_lock);
 		spin_lock(&cq->task_lock);
 		cq->nr_callbacks--;
 		if (!cq->nr_callbacks) {
@@ -740,159 +743,76 @@ static void run_comp_task(struct ehca_cpu_comp_task *cct)
 		}
 		spin_unlock(&cq->task_lock);
 	}
-
-	spin_unlock_irqrestore(&cct->task_lock, flags);
 }
 
-static int comp_task(void *__cct)
+static void comp_task_park(unsigned int cpu)
 {
-	struct ehca_cpu_comp_task *cct = __cct;
-	int cql_empty;
-	DECLARE_WAITQUEUE(wait, current);
-
-	set_current_state(TASK_INTERRUPTIBLE);
-	while (!kthread_should_stop()) {
-		add_wait_queue(&cct->wait_queue, &wait);
-
-		spin_lock_irq(&cct->task_lock);
-		cql_empty = list_empty(&cct->cq_list);
-		spin_unlock_irq(&cct->task_lock);
-		if (cql_empty)
-			schedule();
-		else
-			__set_current_state(TASK_RUNNING);
-
-		remove_wait_queue(&cct->wait_queue, &wait);
+	struct ehca_cpu_comp_task *cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
+	struct ehca_cpu_comp_task *target;
+	struct task_struct *thread;
+	struct ehca_cq *cq, *tmp;
+	LIST_HEAD(list);
 
-		spin_lock_irq(&cct->task_lock);
-		cql_empty = list_empty(&cct->cq_list);
-		spin_unlock_irq(&cct->task_lock);
-		if (!cql_empty)
-			run_comp_task(__cct);
+	spin_lock_irq(&cct->task_lock);
+	cct->cq_jobs = 0;
+	cct->active = 0;
+	list_splice_init(&cct->cq_list, &list);
+	spin_unlock_irq(&cct->task_lock);
 
-		set_current_state(TASK_INTERRUPTIBLE);
+	cpu = find_next_online_cpu(pool);
+	target = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
+	thread = *per_cpu_ptr(pool->cpu_comp_threads, cpu);
+	spin_lock_irq(&target->task_lock);
+	list_for_each_entry_safe(cq, tmp, &list, entry) {
+		list_del(&cq->entry);
+		__queue_comp_task(cq, target, thread);
 	}
-	__set_current_state(TASK_RUNNING);
-
-	return 0;
-}
-
-static struct task_struct *create_comp_task(struct ehca_comp_pool *pool,
-					    int cpu)
-{
-	struct ehca_cpu_comp_task *cct;
-
-	cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
-	spin_lock_init(&cct->task_lock);
-	INIT_LIST_HEAD(&cct->cq_list);
-	init_waitqueue_head(&cct->wait_queue);
-	cct->task = kthread_create_on_node(comp_task, cct, cpu_to_node(cpu),
-					   "ehca_comp/%d", cpu);
-
-	return cct->task;
+	spin_unlock_irq(&target->task_lock);
 }
 
-static void destroy_comp_task(struct ehca_comp_pool *pool,
-			      int cpu)
+static void comp_task_stop(unsigned int cpu, bool online)
 {
-	struct ehca_cpu_comp_task *cct;
-	struct task_struct *task;
-	unsigned long flags_cct;
-
-	cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
-
-	spin_lock_irqsave(&cct->task_lock, flags_cct);
+	struct ehca_cpu_comp_task *cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
 
-	task = cct->task;
-	cct->task = NULL;
+	spin_lock_irq(&cct->task_lock);
 	cct->cq_jobs = 0;
-
-	spin_unlock_irqrestore(&cct->task_lock, flags_cct);
-
-	if (task)
-		kthread_stop(task);
+	cct->active = 0;
+	WARN_ON(!list_empty(&cct->cq_list));
+	spin_unlock_irq(&cct->task_lock);
 }
 
-static void __cpuinit take_over_work(struct ehca_comp_pool *pool, int cpu)
+static int comp_task_should_run(unsigned int cpu)
 {
 	struct ehca_cpu_comp_task *cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
-	LIST_HEAD(list);
-	struct ehca_cq *cq;
-	unsigned long flags_cct;
-
-	spin_lock_irqsave(&cct->task_lock, flags_cct);
-
-	list_splice_init(&cct->cq_list, &list);
-
-	while (!list_empty(&list)) {
-		cq = list_entry(cct->cq_list.next, struct ehca_cq, entry);
-
-		list_del(&cq->entry);
-		__queue_comp_task(cq, this_cpu_ptr(pool->cpu_comp_tasks));
-	}
-
-	spin_unlock_irqrestore(&cct->task_lock, flags_cct);
 
+	return cct->cq_jobs;
 }
 
-static int __cpuinit comp_pool_callback(struct notifier_block *nfb,
-					unsigned long action,
-					void *hcpu)
+static void comp_task(unsigned int cpu)
 {
-	unsigned int cpu = (unsigned long)hcpu;
-	struct ehca_cpu_comp_task *cct;
+	struct ehca_cpu_comp_task *cct = this_cpu_ptr(pool->cpu_comp_tasks);
+	int cql_empty;
 
-	switch (action) {
-	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
-		ehca_gen_dbg("CPU: %x (CPU_PREPARE)", cpu);
-		if (!create_comp_task(pool, cpu)) {
-			ehca_gen_err("Can't create comp_task for cpu: %x", cpu);
-			return notifier_from_errno(-ENOMEM);
-		}
-		break;
-	case CPU_UP_CANCELED:
-	case CPU_UP_CANCELED_FROZEN:
-		ehca_gen_dbg("CPU: %x (CPU_CANCELED)", cpu);
-		cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
-		kthread_bind(cct->task, cpumask_any(cpu_online_mask));
-		destroy_comp_task(pool, cpu);
-		break;
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		ehca_gen_dbg("CPU: %x (CPU_ONLINE)", cpu);
-		cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
-		kthread_bind(cct->task, cpu);
-		wake_up_process(cct->task);
-		break;
-	case CPU_DOWN_PREPARE:
-	case CPU_DOWN_PREPARE_FROZEN:
-		ehca_gen_dbg("CPU: %x (CPU_DOWN_PREPARE)", cpu);
-		break;
-	case CPU_DOWN_FAILED:
-	case CPU_DOWN_FAILED_FROZEN:
-		ehca_gen_dbg("CPU: %x (CPU_DOWN_FAILED)", cpu);
-		break;
-	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
-		ehca_gen_dbg("CPU: %x (CPU_DEAD)", cpu);
-		destroy_comp_task(pool, cpu);
-		take_over_work(pool, cpu);
-		break;
+	spin_lock_irq(&cct->task_lock);
+	cql_empty = list_empty(&cct->cq_list);
+	if (!cql_empty) {
+		__set_current_state(TASK_RUNNING);
+		run_comp_task(cct);
 	}
-
-	return NOTIFY_OK;
+	spin_unlock_irq(&cct->task_lock);
 }
 
-static struct notifier_block comp_pool_callback_nb __cpuinitdata = {
-	.notifier_call	= comp_pool_callback,
-	.priority	= 0,
+static struct smp_hotplug_thread comp_pool_threads = {
+	.thread_should_run	= comp_task_should_run,
+	.thread_fn		= comp_task,
+	.thread_comm		= "ehca_comp/%u",
+	.cleanup		= comp_task_stop,
+	.park			= comp_task_park,
 };
 
 int ehca_create_comp_pool(void)
 {
-	int cpu;
-	struct task_struct *task;
+	int cpu, ret = -ENOMEM;
 
 	if (!ehca_scaling_code)
 		return 0;
@@ -905,38 +825,46 @@ int ehca_create_comp_pool(void)
 	pool->last_cpu = cpumask_any(cpu_online_mask);
 
 	pool->cpu_comp_tasks = alloc_percpu(struct ehca_cpu_comp_task);
-	if (pool->cpu_comp_tasks == NULL) {
-		kfree(pool);
-		return -EINVAL;
-	}
+	if (!pool->cpu_comp_tasks)
+		goto out_pool;
 
-	for_each_online_cpu(cpu) {
-		task = create_comp_task(pool, cpu);
-		if (task) {
-			kthread_bind(task, cpu);
-			wake_up_process(task);
-		}
+	pool->cpu_comp_threads = alloc_percpu(struct task_struct *);
+	if (!pool->cpu_comp_threads)
+		goto out_tasks;
+
+	for_each_present_cpu(cpu) {
+		struct ehca_cpu_comp_task *cct;
+
+		cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
+		spin_lock_init(&cct->task_lock);
+		INIT_LIST_HEAD(&cct->cq_list);
 	}
 
-	register_hotcpu_notifier(&comp_pool_callback_nb);
+	comp_pool_threads.store = pool->cpu_comp_threads;
+	ret = smpboot_register_percpu_thread(&comp_pool_threads);
+	if (ret)
+		goto out_threads;
 
-	printk(KERN_INFO "eHCA scaling code enabled\n");
+	pr_info("eHCA scaling code enabled\n");
+	return ret;
 
-	return 0;
+out_threads:
+	free_percpu(pool->cpu_comp_threads);
+out_tasks:
+	free_percpu(pool->cpu_comp_tasks);
+out_pool:
+	kfree(pool);
+	return ret;
 }
 
 void ehca_destroy_comp_pool(void)
 {
-	int i;
-
 	if (!ehca_scaling_code)
 		return;
 
-	unregister_hotcpu_notifier(&comp_pool_callback_nb);
-
-	for_each_online_cpu(i)
-		destroy_comp_task(pool, i);
+	smpboot_unregister_percpu_thread(&comp_pool_threads);
 
+	free_percpu(pool->cpu_comp_threads);
 	free_percpu(pool->cpu_comp_tasks);
 	kfree(pool);
 }
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.h b/drivers/infiniband/hw/ehca/ehca_irq.h
index 3346cb06cea..5370199f08c 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.h
+++ b/drivers/infiniband/hw/ehca/ehca_irq.h
@@ -58,15 +58,15 @@ void ehca_tasklet_eq(unsigned long data);
 void ehca_process_eq(struct ehca_shca *shca, int is_irq);
 
 struct ehca_cpu_comp_task {
-	wait_queue_head_t wait_queue;
 	struct list_head cq_list;
-	struct task_struct *task;
 	spinlock_t task_lock;
 	int cq_jobs;
+	int active;
 };
 
 struct ehca_comp_pool {
-	struct ehca_cpu_comp_task *cpu_comp_tasks;
+	struct ehca_cpu_comp_task __percpu *cpu_comp_tasks;
+	struct task_struct * __percpu *cpu_comp_threads;
 	int last_cpu;
 	spinlock_t last_cpu_lock;
 };
diff --git a/drivers/infiniband/hw/mlx4/Makefile b/drivers/infiniband/hw/mlx4/Makefile
index 70f09c7826d..f4213b3a8fe 100644
--- a/drivers/infiniband/hw/mlx4/Makefile
+++ b/drivers/infiniband/hw/mlx4/Makefile
@@ -1,3 +1,3 @@
 obj-$(CONFIG_MLX4_INFINIBAND)	+= mlx4_ib.o
 
-mlx4_ib-y :=	ah.o cq.o doorbell.o mad.o main.o mr.o qp.o srq.o
+mlx4_ib-y :=	ah.o cq.o doorbell.o mad.o main.o mr.o qp.o srq.o mcg.o cm.o alias_GUID.o sysfs.o
diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c
new file mode 100644
index 00000000000..d2fb38d4357
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/alias_GUID.c
@@ -0,0 +1,688 @@
+/*
+ * Copyright (c) 2012 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+ /***********************************************************/
+/*This file support the handling of the Alias GUID feature. */
+/***********************************************************/
+#include <rdma/ib_mad.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_cache.h>
+#include <rdma/ib_sa.h>
+#include <rdma/ib_pack.h>
+#include <linux/mlx4/cmd.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <rdma/ib_user_verbs.h>
+#include <linux/delay.h>
+#include "mlx4_ib.h"
+
+/*
+The driver keeps the current state of all guids, as they are in the HW.
+Whenever we receive an smp mad GUIDInfo record, the data will be cached.
+*/
+
+struct mlx4_alias_guid_work_context {
+	u8 port;
+	struct mlx4_ib_dev     *dev ;
+	struct ib_sa_query     *sa_query;
+	struct completion	done;
+	int			query_id;
+	struct list_head	list;
+	int			block_num;
+};
+
+struct mlx4_next_alias_guid_work {
+	u8 port;
+	u8 block_num;
+	struct mlx4_sriov_alias_guid_info_rec_det rec_det;
+};
+
+
+void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev, int block_num,
+					 u8 port_num, u8 *p_data)
+{
+	int i;
+	u64 guid_indexes;
+	int slave_id;
+	int port_index = port_num - 1;
+
+	if (!mlx4_is_master(dev->dev))
+		return;
+
+	guid_indexes = be64_to_cpu((__force __be64) dev->sriov.alias_guid.
+				   ports_guid[port_num - 1].
+				   all_rec_per_port[block_num].guid_indexes);
+	pr_debug("port: %d, guid_indexes: 0x%llx\n", port_num, guid_indexes);
+
+	for (i = 0; i < NUM_ALIAS_GUID_IN_REC; i++) {
+		/* The location of the specific index starts from bit number 4
+		 * until bit num 11 */
+		if (test_bit(i + 4, (unsigned long *)&guid_indexes)) {
+			slave_id = (block_num * NUM_ALIAS_GUID_IN_REC) + i ;
+			if (slave_id >= dev->dev->num_slaves) {
+				pr_debug("The last slave: %d\n", slave_id);
+				return;
+			}
+
+			/* cache the guid: */
+			memcpy(&dev->sriov.demux[port_index].guid_cache[slave_id],
+			       &p_data[i * GUID_REC_SIZE],
+			       GUID_REC_SIZE);
+		} else
+			pr_debug("Guid number: %d in block: %d"
+				 " was not updated\n", i, block_num);
+	}
+}
+
+static __be64 get_cached_alias_guid(struct mlx4_ib_dev *dev, int port, int index)
+{
+	if (index >= NUM_ALIAS_GUID_PER_PORT) {
+		pr_err("%s: ERROR: asked for index:%d\n", __func__, index);
+		return  (__force __be64) ((u64) 0xFFFFFFFFFFFFFFFFUL);
+	}
+	return *(__be64 *)&dev->sriov.demux[port - 1].guid_cache[index];
+}
+
+
+ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index)
+{
+	return IB_SA_COMP_MASK(4 + index);
+}
+
+/*
+ * Whenever new GUID is set/unset (guid table change) create event and
+ * notify the relevant slave (master also should be notified).
+ * If the GUID value is not as we have in the cache the slave will not be
+ * updated; in this case it waits for the smp_snoop or the port management
+ * event to call the function and to update the slave.
+ * block_number - the index of the block (16 blocks available)
+ * port_number - 1 or 2
+ */
+void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
+					  int block_num, u8 port_num,
+					  u8 *p_data)
+{
+	int i;
+	u64 guid_indexes;
+	int slave_id;
+	enum slave_port_state new_state;
+	enum slave_port_state prev_state;
+	__be64 tmp_cur_ag, form_cache_ag;
+	enum slave_port_gen_event gen_event;
+
+	if (!mlx4_is_master(dev->dev))
+		return;
+
+	guid_indexes = be64_to_cpu((__force __be64) dev->sriov.alias_guid.
+				   ports_guid[port_num - 1].
+				   all_rec_per_port[block_num].guid_indexes);
+	pr_debug("port: %d, guid_indexes: 0x%llx\n", port_num, guid_indexes);
+
+	/*calculate the slaves and notify them*/
+	for (i = 0; i < NUM_ALIAS_GUID_IN_REC; i++) {
+		/* the location of the specific index runs from bits 4..11 */
+		if (!(test_bit(i + 4, (unsigned long *)&guid_indexes)))
+			continue;
+
+		slave_id = (block_num * NUM_ALIAS_GUID_IN_REC) + i ;
+		if (slave_id >= dev->dev->num_slaves)
+			return;
+		tmp_cur_ag = *(__be64 *)&p_data[i * GUID_REC_SIZE];
+		form_cache_ag = get_cached_alias_guid(dev, port_num,
+					(NUM_ALIAS_GUID_IN_REC * block_num) + i);
+		/*
+		 * Check if guid is not the same as in the cache,
+		 * If it is different, wait for the snoop_smp or the port mgmt
+		 * change event to update the slave on its port state change
+		 */
+		if (tmp_cur_ag != form_cache_ag)
+			continue;
+		mlx4_gen_guid_change_eqe(dev->dev, slave_id, port_num);
+
+		/*2 cases: Valid GUID, and Invalid Guid*/
+
+		if (tmp_cur_ag != MLX4_NOT_SET_GUID) { /*valid GUID*/
+			prev_state = mlx4_get_slave_port_state(dev->dev, slave_id, port_num);
+			new_state = set_and_calc_slave_port_state(dev->dev, slave_id, port_num,
+								  MLX4_PORT_STATE_IB_PORT_STATE_EVENT_GID_VALID,
+								  &gen_event);
+			pr_debug("slave: %d, port: %d prev_port_state: %d,"
+				 " new_port_state: %d, gen_event: %d\n",
+				 slave_id, port_num, prev_state, new_state, gen_event);
+			if (gen_event == SLAVE_PORT_GEN_EVENT_UP) {
+				pr_debug("sending PORT_UP event to slave: %d, port: %d\n",
+					 slave_id, port_num);
+				mlx4_gen_port_state_change_eqe(dev->dev, slave_id,
+							       port_num, MLX4_PORT_CHANGE_SUBTYPE_ACTIVE);
+			}
+		} else { /* request to invalidate GUID */
+			set_and_calc_slave_port_state(dev->dev, slave_id, port_num,
+						      MLX4_PORT_STATE_IB_EVENT_GID_INVALID,
+						      &gen_event);
+			pr_debug("sending PORT DOWN event to slave: %d, port: %d\n",
+				 slave_id, port_num);
+			mlx4_gen_port_state_change_eqe(dev->dev, slave_id, port_num,
+						       MLX4_PORT_CHANGE_SUBTYPE_DOWN);
+		}
+	}
+}
+
+static void aliasguid_query_handler(int status,
+				    struct ib_sa_guidinfo_rec *guid_rec,
+				    void *context)
+{
+	struct mlx4_ib_dev *dev;
+	struct mlx4_alias_guid_work_context *cb_ctx = context;
+	u8 port_index ;
+	int i;
+	struct mlx4_sriov_alias_guid_info_rec_det *rec;
+	unsigned long flags, flags1;
+
+	if (!context)
+		return;
+
+	dev = cb_ctx->dev;
+	port_index = cb_ctx->port - 1;
+	rec = &dev->sriov.alias_guid.ports_guid[port_index].
+		all_rec_per_port[cb_ctx->block_num];
+
+	if (status) {
+		rec->status = MLX4_GUID_INFO_STATUS_IDLE;
+		pr_debug("(port: %d) failed: status = %d\n",
+			 cb_ctx->port, status);
+		goto out;
+	}
+
+	if (guid_rec->block_num != cb_ctx->block_num) {
+		pr_err("block num mismatch: %d != %d\n",
+		       cb_ctx->block_num, guid_rec->block_num);
+		goto out;
+	}
+
+	pr_debug("lid/port: %d/%d, block_num: %d\n",
+		 be16_to_cpu(guid_rec->lid), cb_ctx->port,
+		 guid_rec->block_num);
+
+	rec = &dev->sriov.alias_guid.ports_guid[port_index].
+		all_rec_per_port[guid_rec->block_num];
+
+	rec->status = MLX4_GUID_INFO_STATUS_SET;
+	rec->method = MLX4_GUID_INFO_RECORD_SET;
+
+	for (i = 0 ; i < NUM_ALIAS_GUID_IN_REC; i++) {
+		__be64 tmp_cur_ag;
+		tmp_cur_ag = *(__be64 *)&guid_rec->guid_info_list[i * GUID_REC_SIZE];
+		/* check if the SM didn't assign one of the records.
+		 * if it didn't, if it was not sysadmin request:
+		 * ask the SM to give a new GUID, (instead of the driver request).
+		 */
+		if (tmp_cur_ag == MLX4_NOT_SET_GUID) {
+			mlx4_ib_warn(&dev->ib_dev, "%s:Record num %d in "
+				     "block_num: %d was declined by SM, "
+				     "ownership by %d (0 = driver, 1=sysAdmin,"
+				     " 2=None)\n", __func__, i,
+				     guid_rec->block_num, rec->ownership);
+			if (rec->ownership == MLX4_GUID_DRIVER_ASSIGN) {
+				/* if it is driver assign, asks for new GUID from SM*/
+				*(__be64 *)&rec->all_recs[i * GUID_REC_SIZE] =
+					MLX4_NOT_SET_GUID;
+
+				/* Mark the record as not assigned, and let it
+				 * be sent again in the next work sched.*/
+				rec->status = MLX4_GUID_INFO_STATUS_IDLE;
+				rec->guid_indexes |= mlx4_ib_get_aguid_comp_mask_from_ix(i);
+			}
+		} else {
+		       /* properly assigned record. */
+		       /* We save the GUID we just got from the SM in the
+			* admin_guid in order to be persistent, and in the
+			* request from the sm the process will ask for the same GUID */
+			if (rec->ownership == MLX4_GUID_SYSADMIN_ASSIGN &&
+			    tmp_cur_ag != *(__be64 *)&rec->all_recs[i * GUID_REC_SIZE]) {
+				/* the sysadmin assignment failed.*/
+				mlx4_ib_warn(&dev->ib_dev, "%s: Failed to set"
+					     " admin guid after SysAdmin "
+					     "configuration. "
+					     "Record num %d in block_num:%d "
+					     "was declined by SM, "
+					     "new val(0x%llx) was kept\n",
+					      __func__, i,
+					     guid_rec->block_num,
+					     be64_to_cpu(*(__be64 *) &
+							 rec->all_recs[i * GUID_REC_SIZE]));
+			} else {
+				memcpy(&rec->all_recs[i * GUID_REC_SIZE],
+				       &guid_rec->guid_info_list[i * GUID_REC_SIZE],
+				       GUID_REC_SIZE);
+			}
+		}
+	}
+	/*
+	The func is call here to close the cases when the
+	sm doesn't send smp, so in the sa response the driver
+	notifies the slave.
+	*/
+	mlx4_ib_notify_slaves_on_guid_change(dev, guid_rec->block_num,
+					     cb_ctx->port,
+					     guid_rec->guid_info_list);
+out:
+	spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+	spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	if (!dev->sriov.is_going_down)
+		queue_delayed_work(dev->sriov.alias_guid.ports_guid[port_index].wq,
+				   &dev->sriov.alias_guid.ports_guid[port_index].
+				   alias_guid_work, 0);
+	if (cb_ctx->sa_query) {
+		list_del(&cb_ctx->list);
+		kfree(cb_ctx);
+	} else
+		complete(&cb_ctx->done);
+	spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+}
+
+static void invalidate_guid_record(struct mlx4_ib_dev *dev, u8 port, int index)
+{
+	int i;
+	u64 cur_admin_val;
+	ib_sa_comp_mask comp_mask = 0;
+
+	dev->sriov.alias_guid.ports_guid[port - 1].all_rec_per_port[index].status
+		= MLX4_GUID_INFO_STATUS_IDLE;
+	dev->sriov.alias_guid.ports_guid[port - 1].all_rec_per_port[index].method
+		= MLX4_GUID_INFO_RECORD_SET;
+
+	/* calculate the comp_mask for that record.*/
+	for (i = 0; i < NUM_ALIAS_GUID_IN_REC; i++) {
+		cur_admin_val =
+			*(u64 *)&dev->sriov.alias_guid.ports_guid[port - 1].
+			all_rec_per_port[index].all_recs[GUID_REC_SIZE * i];
+		/*
+		check the admin value: if it's for delete (~00LL) or
+		it is the first guid of the first record (hw guid) or
+		the records is not in ownership of the sysadmin and the sm doesn't
+		need to assign GUIDs, then don't put it up for assignment.
+		*/
+		if (MLX4_GUID_FOR_DELETE_VAL == cur_admin_val ||
+		    (!index && !i) ||
+		    MLX4_GUID_NONE_ASSIGN == dev->sriov.alias_guid.
+		    ports_guid[port - 1].all_rec_per_port[index].ownership)
+			continue;
+		comp_mask |= mlx4_ib_get_aguid_comp_mask_from_ix(i);
+	}
+	dev->sriov.alias_guid.ports_guid[port - 1].
+		all_rec_per_port[index].guid_indexes = comp_mask;
+}
+
+static int set_guid_rec(struct ib_device *ibdev,
+			u8 port, int index,
+			struct mlx4_sriov_alias_guid_info_rec_det *rec_det)
+{
+	int err;
+	struct mlx4_ib_dev *dev = to_mdev(ibdev);
+	struct ib_sa_guidinfo_rec guid_info_rec;
+	ib_sa_comp_mask comp_mask;
+	struct ib_port_attr attr;
+	struct mlx4_alias_guid_work_context *callback_context;
+	unsigned long resched_delay, flags, flags1;
+	struct list_head *head =
+		&dev->sriov.alias_guid.ports_guid[port - 1].cb_list;
+
+	err = __mlx4_ib_query_port(ibdev, port, &attr, 1);
+	if (err) {
+		pr_debug("mlx4_ib_query_port failed (err: %d), port: %d\n",
+			 err, port);
+		return err;
+	}
+	/*check the port was configured by the sm, otherwise no need to send */
+	if (attr.state != IB_PORT_ACTIVE) {
+		pr_debug("port %d not active...rescheduling\n", port);
+		resched_delay = 5 * HZ;
+		err = -EAGAIN;
+		goto new_schedule;
+	}
+
+	callback_context = kmalloc(sizeof *callback_context, GFP_KERNEL);
+	if (!callback_context) {
+		err = -ENOMEM;
+		resched_delay = HZ * 5;
+		goto new_schedule;
+	}
+	callback_context->port = port;
+	callback_context->dev = dev;
+	callback_context->block_num = index;
+
+	memset(&guid_info_rec, 0, sizeof (struct ib_sa_guidinfo_rec));
+
+	guid_info_rec.lid = cpu_to_be16(attr.lid);
+	guid_info_rec.block_num = index;
+
+	memcpy(guid_info_rec.guid_info_list, rec_det->all_recs,
+	       GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC);
+	comp_mask = IB_SA_GUIDINFO_REC_LID | IB_SA_GUIDINFO_REC_BLOCK_NUM |
+		rec_det->guid_indexes;
+
+	init_completion(&callback_context->done);
+	spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	list_add_tail(&callback_context->list, head);
+	spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags1);
+
+	callback_context->query_id =
+		ib_sa_guid_info_rec_query(dev->sriov.alias_guid.sa_client,
+					  ibdev, port, &guid_info_rec,
+					  comp_mask, rec_det->method, 1000,
+					  GFP_KERNEL, aliasguid_query_handler,
+					  callback_context,
+					  &callback_context->sa_query);
+	if (callback_context->query_id < 0) {
+		pr_debug("ib_sa_guid_info_rec_query failed, query_id: "
+			 "%d. will reschedule to the next 1 sec.\n",
+			 callback_context->query_id);
+		spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
+		list_del(&callback_context->list);
+		kfree(callback_context);
+		spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags1);
+		resched_delay = 1 * HZ;
+		err = -EAGAIN;
+		goto new_schedule;
+	}
+	err = 0;
+	goto out;
+
+new_schedule:
+	spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+	spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	invalidate_guid_record(dev, port, index);
+	if (!dev->sriov.is_going_down) {
+		queue_delayed_work(dev->sriov.alias_guid.ports_guid[port - 1].wq,
+				   &dev->sriov.alias_guid.ports_guid[port - 1].alias_guid_work,
+				   resched_delay);
+	}
+	spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+
+out:
+	return err;
+}
+
+void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port)
+{
+	int i;
+	unsigned long flags, flags1;
+
+	pr_debug("port %d\n", port);
+
+	spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+	spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	for (i = 0; i < NUM_ALIAS_GUID_REC_IN_PORT; i++)
+		invalidate_guid_record(dev, port, i);
+
+	if (mlx4_is_master(dev->dev) && !dev->sriov.is_going_down) {
+		/*
+		make sure no work waits in the queue, if the work is already
+		queued(not on the timer) the cancel will fail. That is not a problem
+		because we just want the work started.
+		*/
+		cancel_delayed_work(&dev->sriov.alias_guid.
+				      ports_guid[port - 1].alias_guid_work);
+		queue_delayed_work(dev->sriov.alias_guid.ports_guid[port - 1].wq,
+				   &dev->sriov.alias_guid.ports_guid[port - 1].alias_guid_work,
+				   0);
+	}
+	spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+}
+
+/* The function returns the next record that was
+ * not configured (or failed to be configured) */
+static int get_next_record_to_update(struct mlx4_ib_dev *dev, u8 port,
+				     struct mlx4_next_alias_guid_work *rec)
+{
+	int j;
+	unsigned long flags;
+
+	for (j = 0; j < NUM_ALIAS_GUID_REC_IN_PORT; j++) {
+		spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags);
+		if (dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[j].status ==
+		    MLX4_GUID_INFO_STATUS_IDLE) {
+			memcpy(&rec->rec_det,
+			       &dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[j],
+			       sizeof (struct mlx4_sriov_alias_guid_info_rec_det));
+			rec->port = port;
+			rec->block_num = j;
+			dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[j].status =
+				MLX4_GUID_INFO_STATUS_PENDING;
+			spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
+			return 0;
+		}
+		spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
+	}
+	return -ENOENT;
+}
+
+static void set_administratively_guid_record(struct mlx4_ib_dev *dev, int port,
+					     int rec_index,
+					     struct mlx4_sriov_alias_guid_info_rec_det *rec_det)
+{
+	dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[rec_index].guid_indexes =
+		rec_det->guid_indexes;
+	memcpy(dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[rec_index].all_recs,
+	       rec_det->all_recs, NUM_ALIAS_GUID_IN_REC * GUID_REC_SIZE);
+	dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[rec_index].status =
+		rec_det->status;
+}
+
+static void set_all_slaves_guids(struct mlx4_ib_dev *dev, int port)
+{
+	int j;
+	struct mlx4_sriov_alias_guid_info_rec_det rec_det ;
+
+	for (j = 0 ; j < NUM_ALIAS_GUID_REC_IN_PORT ; j++) {
+		memset(rec_det.all_recs, 0, NUM_ALIAS_GUID_IN_REC * GUID_REC_SIZE);
+		rec_det.guid_indexes = (!j ? 0 : IB_SA_GUIDINFO_REC_GID0) |
+			IB_SA_GUIDINFO_REC_GID1 | IB_SA_GUIDINFO_REC_GID2 |
+			IB_SA_GUIDINFO_REC_GID3 | IB_SA_GUIDINFO_REC_GID4 |
+			IB_SA_GUIDINFO_REC_GID5 | IB_SA_GUIDINFO_REC_GID6 |
+			IB_SA_GUIDINFO_REC_GID7;
+		rec_det.status = MLX4_GUID_INFO_STATUS_IDLE;
+		set_administratively_guid_record(dev, port, j, &rec_det);
+	}
+}
+
+static void alias_guid_work(struct work_struct *work)
+{
+	struct delayed_work *delay = to_delayed_work(work);
+	int ret = 0;
+	struct mlx4_next_alias_guid_work *rec;
+	struct mlx4_sriov_alias_guid_port_rec_det *sriov_alias_port =
+		container_of(delay, struct mlx4_sriov_alias_guid_port_rec_det,
+			     alias_guid_work);
+	struct mlx4_sriov_alias_guid *sriov_alias_guid = sriov_alias_port->parent;
+	struct mlx4_ib_sriov *ib_sriov = container_of(sriov_alias_guid,
+						struct mlx4_ib_sriov,
+						alias_guid);
+	struct mlx4_ib_dev *dev = container_of(ib_sriov, struct mlx4_ib_dev, sriov);
+
+	rec = kzalloc(sizeof *rec, GFP_KERNEL);
+	if (!rec) {
+		pr_err("alias_guid_work: No Memory\n");
+		return;
+	}
+
+	pr_debug("starting [port: %d]...\n", sriov_alias_port->port + 1);
+	ret = get_next_record_to_update(dev, sriov_alias_port->port, rec);
+	if (ret) {
+		pr_debug("No more records to update.\n");
+		goto out;
+	}
+
+	set_guid_rec(&dev->ib_dev, rec->port + 1, rec->block_num,
+		     &rec->rec_det);
+
+out:
+	kfree(rec);
+}
+
+
+void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port)
+{
+	unsigned long flags, flags1;
+
+	if (!mlx4_is_master(dev->dev))
+		return;
+	spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+	spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	if (!dev->sriov.is_going_down) {
+		queue_delayed_work(dev->sriov.alias_guid.ports_guid[port].wq,
+			   &dev->sriov.alias_guid.ports_guid[port].alias_guid_work, 0);
+	}
+	spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags1);
+	spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+}
+
+void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev)
+{
+	int i;
+	struct mlx4_ib_sriov *sriov = &dev->sriov;
+	struct mlx4_alias_guid_work_context *cb_ctx;
+	struct mlx4_sriov_alias_guid_port_rec_det *det;
+	struct ib_sa_query *sa_query;
+	unsigned long flags;
+
+	for (i = 0 ; i < dev->num_ports; i++) {
+		cancel_delayed_work(&dev->sriov.alias_guid.ports_guid[i].alias_guid_work);
+		det = &sriov->alias_guid.ports_guid[i];
+		spin_lock_irqsave(&sriov->alias_guid.ag_work_lock, flags);
+		while (!list_empty(&det->cb_list)) {
+			cb_ctx = list_entry(det->cb_list.next,
+					    struct mlx4_alias_guid_work_context,
+					    list);
+			sa_query = cb_ctx->sa_query;
+			cb_ctx->sa_query = NULL;
+			list_del(&cb_ctx->list);
+			spin_unlock_irqrestore(&sriov->alias_guid.ag_work_lock, flags);
+			ib_sa_cancel_query(cb_ctx->query_id, sa_query);
+			wait_for_completion(&cb_ctx->done);
+			kfree(cb_ctx);
+			spin_lock_irqsave(&sriov->alias_guid.ag_work_lock, flags);
+		}
+		spin_unlock_irqrestore(&sriov->alias_guid.ag_work_lock, flags);
+	}
+	for (i = 0 ; i < dev->num_ports; i++) {
+		flush_workqueue(dev->sriov.alias_guid.ports_guid[i].wq);
+		destroy_workqueue(dev->sriov.alias_guid.ports_guid[i].wq);
+	}
+	ib_sa_unregister_client(dev->sriov.alias_guid.sa_client);
+	kfree(dev->sriov.alias_guid.sa_client);
+}
+
+int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev)
+{
+	char alias_wq_name[15];
+	int ret = 0;
+	int i, j, k;
+	union ib_gid gid;
+
+	if (!mlx4_is_master(dev->dev))
+		return 0;
+	dev->sriov.alias_guid.sa_client =
+		kzalloc(sizeof *dev->sriov.alias_guid.sa_client, GFP_KERNEL);
+	if (!dev->sriov.alias_guid.sa_client)
+		return -ENOMEM;
+
+	ib_sa_register_client(dev->sriov.alias_guid.sa_client);
+
+	spin_lock_init(&dev->sriov.alias_guid.ag_work_lock);
+
+	for (i = 1; i <= dev->num_ports; ++i) {
+		if (dev->ib_dev.query_gid(&dev->ib_dev , i, 0, &gid)) {
+			ret = -EFAULT;
+			goto err_unregister;
+		}
+	}
+
+	for (i = 0 ; i < dev->num_ports; i++) {
+		memset(&dev->sriov.alias_guid.ports_guid[i], 0,
+		       sizeof (struct mlx4_sriov_alias_guid_port_rec_det));
+		/*Check if the SM doesn't need to assign the GUIDs*/
+		for (j = 0; j < NUM_ALIAS_GUID_REC_IN_PORT; j++) {
+			if (mlx4_ib_sm_guid_assign) {
+				dev->sriov.alias_guid.ports_guid[i].
+					all_rec_per_port[j].
+					ownership = MLX4_GUID_DRIVER_ASSIGN;
+				continue;
+			}
+			dev->sriov.alias_guid.ports_guid[i].all_rec_per_port[j].
+					ownership = MLX4_GUID_NONE_ASSIGN;
+			/*mark each val as it was deleted,
+			  till the sysAdmin will give it valid val*/
+			for (k = 0; k < NUM_ALIAS_GUID_IN_REC; k++) {
+				*(__be64 *)&dev->sriov.alias_guid.ports_guid[i].
+					all_rec_per_port[j].all_recs[GUID_REC_SIZE * k] =
+						cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL);
+			}
+		}
+		INIT_LIST_HEAD(&dev->sriov.alias_guid.ports_guid[i].cb_list);
+		/*prepare the records, set them to be allocated by sm*/
+		for (j = 0 ; j < NUM_ALIAS_GUID_REC_IN_PORT; j++)
+			invalidate_guid_record(dev, i + 1, j);
+
+		dev->sriov.alias_guid.ports_guid[i].parent = &dev->sriov.alias_guid;
+		dev->sriov.alias_guid.ports_guid[i].port  = i;
+		if (mlx4_ib_sm_guid_assign)
+			set_all_slaves_guids(dev, i);
+
+		snprintf(alias_wq_name, sizeof alias_wq_name, "alias_guid%d", i);
+		dev->sriov.alias_guid.ports_guid[i].wq =
+			create_singlethread_workqueue(alias_wq_name);
+		if (!dev->sriov.alias_guid.ports_guid[i].wq) {
+			ret = -ENOMEM;
+			goto err_thread;
+		}
+		INIT_DELAYED_WORK(&dev->sriov.alias_guid.ports_guid[i].alias_guid_work,
+			  alias_guid_work);
+	}
+	return 0;
+
+err_thread:
+	for (--i; i >= 0; i--) {
+		destroy_workqueue(dev->sriov.alias_guid.ports_guid[i].wq);
+		dev->sriov.alias_guid.ports_guid[i].wq = NULL;
+	}
+
+err_unregister:
+	ib_sa_unregister_client(dev->sriov.alias_guid.sa_client);
+	kfree(dev->sriov.alias_guid.sa_client);
+	dev->sriov.alias_guid.sa_client = NULL;
+	pr_err("init_alias_guid_service: Failed. (ret:%d)\n", ret);
+	return ret;
+}
diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c
new file mode 100644
index 00000000000..e25e4dafb8a
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/cm.c
@@ -0,0 +1,437 @@
+/*
+ * Copyright (c) 2012 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/ib_mad.h>
+
+#include <linux/mlx4/cmd.h>
+#include <linux/rbtree.h>
+#include <linux/idr.h>
+#include <rdma/ib_cm.h>
+
+#include "mlx4_ib.h"
+
+#define CM_CLEANUP_CACHE_TIMEOUT  (5 * HZ)
+
+struct id_map_entry {
+	struct rb_node node;
+
+	u32 sl_cm_id;
+	u32 pv_cm_id;
+	int slave_id;
+	int scheduled_delete;
+	struct mlx4_ib_dev *dev;
+
+	struct list_head list;
+	struct delayed_work timeout;
+};
+
+struct cm_generic_msg {
+	struct ib_mad_hdr hdr;
+
+	__be32 local_comm_id;
+	__be32 remote_comm_id;
+};
+
+struct cm_req_msg {
+	unsigned char unused[0x60];
+	union ib_gid primary_path_sgid;
+};
+
+
+static void set_local_comm_id(struct ib_mad *mad, u32 cm_id)
+{
+	struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
+	msg->local_comm_id = cpu_to_be32(cm_id);
+}
+
+static u32 get_local_comm_id(struct ib_mad *mad)
+{
+	struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
+
+	return be32_to_cpu(msg->local_comm_id);
+}
+
+static void set_remote_comm_id(struct ib_mad *mad, u32 cm_id)
+{
+	struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
+	msg->remote_comm_id = cpu_to_be32(cm_id);
+}
+
+static u32 get_remote_comm_id(struct ib_mad *mad)
+{
+	struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
+
+	return be32_to_cpu(msg->remote_comm_id);
+}
+
+static union ib_gid gid_from_req_msg(struct ib_device *ibdev, struct ib_mad *mad)
+{
+	struct cm_req_msg *msg = (struct cm_req_msg *)mad;
+
+	return msg->primary_path_sgid;
+}
+
+/* Lock should be taken before called */
+static struct id_map_entry *
+id_map_find_by_sl_id(struct ib_device *ibdev, u32 slave_id, u32 sl_cm_id)
+{
+	struct rb_root *sl_id_map = &to_mdev(ibdev)->sriov.sl_id_map;
+	struct rb_node *node = sl_id_map->rb_node;
+
+	while (node) {
+		struct id_map_entry *id_map_entry =
+			rb_entry(node, struct id_map_entry, node);
+
+		if (id_map_entry->sl_cm_id > sl_cm_id)
+			node = node->rb_left;
+		else if (id_map_entry->sl_cm_id < sl_cm_id)
+			node = node->rb_right;
+		else if (id_map_entry->slave_id > slave_id)
+			node = node->rb_left;
+		else if (id_map_entry->slave_id < slave_id)
+			node = node->rb_right;
+		else
+			return id_map_entry;
+	}
+	return NULL;
+}
+
+static void id_map_ent_timeout(struct work_struct *work)
+{
+	struct delayed_work *delay = to_delayed_work(work);
+	struct id_map_entry *ent = container_of(delay, struct id_map_entry, timeout);
+	struct id_map_entry *db_ent, *found_ent;
+	struct mlx4_ib_dev *dev = ent->dev;
+	struct mlx4_ib_sriov *sriov = &dev->sriov;
+	struct rb_root *sl_id_map = &sriov->sl_id_map;
+	int pv_id = (int) ent->pv_cm_id;
+
+	spin_lock(&sriov->id_map_lock);
+	db_ent = (struct id_map_entry *)idr_find(&sriov->pv_id_table, pv_id);
+	if (!db_ent)
+		goto out;
+	found_ent = id_map_find_by_sl_id(&dev->ib_dev, ent->slave_id, ent->sl_cm_id);
+	if (found_ent && found_ent == ent)
+		rb_erase(&found_ent->node, sl_id_map);
+	idr_remove(&sriov->pv_id_table, pv_id);
+
+out:
+	list_del(&ent->list);
+	spin_unlock(&sriov->id_map_lock);
+	kfree(ent);
+}
+
+static void id_map_find_del(struct ib_device *ibdev, int pv_cm_id)
+{
+	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
+	struct rb_root *sl_id_map = &sriov->sl_id_map;
+	struct id_map_entry *ent, *found_ent;
+
+	spin_lock(&sriov->id_map_lock);
+	ent = (struct id_map_entry *)idr_find(&sriov->pv_id_table, pv_cm_id);
+	if (!ent)
+		goto out;
+	found_ent = id_map_find_by_sl_id(ibdev, ent->slave_id, ent->sl_cm_id);
+	if (found_ent && found_ent == ent)
+		rb_erase(&found_ent->node, sl_id_map);
+	idr_remove(&sriov->pv_id_table, pv_cm_id);
+out:
+	spin_unlock(&sriov->id_map_lock);
+}
+
+static void sl_id_map_add(struct ib_device *ibdev, struct id_map_entry *new)
+{
+	struct rb_root *sl_id_map = &to_mdev(ibdev)->sriov.sl_id_map;
+	struct rb_node **link = &sl_id_map->rb_node, *parent = NULL;
+	struct id_map_entry *ent;
+	int slave_id = new->slave_id;
+	int sl_cm_id = new->sl_cm_id;
+
+	ent = id_map_find_by_sl_id(ibdev, slave_id, sl_cm_id);
+	if (ent) {
+		pr_debug("overriding existing sl_id_map entry (cm_id = %x)\n",
+			 sl_cm_id);
+
+		rb_replace_node(&ent->node, &new->node, sl_id_map);
+		return;
+	}
+
+	/* Go to the bottom of the tree */
+	while (*link) {
+		parent = *link;
+		ent = rb_entry(parent, struct id_map_entry, node);
+
+		if (ent->sl_cm_id > sl_cm_id || (ent->sl_cm_id == sl_cm_id && ent->slave_id > slave_id))
+			link = &(*link)->rb_left;
+		else
+			link = &(*link)->rb_right;
+	}
+
+	rb_link_node(&new->node, parent, link);
+	rb_insert_color(&new->node, sl_id_map);
+}
+
+static struct id_map_entry *
+id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
+{
+	int ret, id;
+	static int next_id;
+	struct id_map_entry *ent;
+	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
+
+	ent = kmalloc(sizeof (struct id_map_entry), GFP_KERNEL);
+	if (!ent) {
+		mlx4_ib_warn(ibdev, "Couldn't allocate id cache entry - out of memory\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	ent->sl_cm_id = sl_cm_id;
+	ent->slave_id = slave_id;
+	ent->scheduled_delete = 0;
+	ent->dev = to_mdev(ibdev);
+	INIT_DELAYED_WORK(&ent->timeout, id_map_ent_timeout);
+
+	do {
+		spin_lock(&to_mdev(ibdev)->sriov.id_map_lock);
+		ret = idr_get_new_above(&sriov->pv_id_table, ent,
+					next_id, &id);
+		if (!ret) {
+			next_id = ((unsigned) id + 1) & MAX_ID_MASK;
+			ent->pv_cm_id = (u32)id;
+			sl_id_map_add(ibdev, ent);
+		}
+
+		spin_unlock(&sriov->id_map_lock);
+	} while (ret == -EAGAIN && idr_pre_get(&sriov->pv_id_table, GFP_KERNEL));
+	/*the function idr_get_new_above can return -ENOSPC, so don't insert in that case.*/
+	if (!ret) {
+		spin_lock(&sriov->id_map_lock);
+		list_add_tail(&ent->list, &sriov->cm_list);
+		spin_unlock(&sriov->id_map_lock);
+		return ent;
+	}
+	/*error flow*/
+	kfree(ent);
+	mlx4_ib_warn(ibdev, "No more space in the idr (err:0x%x)\n", ret);
+	return ERR_PTR(-ENOMEM);
+}
+
+static struct id_map_entry *
+id_map_get(struct ib_device *ibdev, int *pv_cm_id, int sl_cm_id, int slave_id)
+{
+	struct id_map_entry *ent;
+	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
+
+	spin_lock(&sriov->id_map_lock);
+	if (*pv_cm_id == -1) {
+		ent = id_map_find_by_sl_id(ibdev, sl_cm_id, slave_id);
+		if (ent)
+			*pv_cm_id = (int) ent->pv_cm_id;
+	} else
+		ent = (struct id_map_entry *)idr_find(&sriov->pv_id_table, *pv_cm_id);
+	spin_unlock(&sriov->id_map_lock);
+
+	return ent;
+}
+
+static void schedule_delayed(struct ib_device *ibdev, struct id_map_entry *id)
+{
+	struct mlx4_ib_sriov *sriov = &to_mdev(ibdev)->sriov;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sriov->going_down_lock, flags);
+	spin_lock(&sriov->id_map_lock);
+	/*make sure that there is no schedule inside the scheduled work.*/
+	if (!sriov->is_going_down) {
+		id->scheduled_delete = 1;
+		schedule_delayed_work(&id->timeout, CM_CLEANUP_CACHE_TIMEOUT);
+	}
+	spin_unlock(&sriov->id_map_lock);
+	spin_unlock_irqrestore(&sriov->going_down_lock, flags);
+}
+
+int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
+		struct ib_mad *mad)
+{
+	struct id_map_entry *id;
+	u32 sl_cm_id;
+	int pv_cm_id = -1;
+
+	sl_cm_id = get_local_comm_id(mad);
+
+	if (mad->mad_hdr.attr_id == CM_REQ_ATTR_ID ||
+			mad->mad_hdr.attr_id == CM_REP_ATTR_ID) {
+		id = id_map_alloc(ibdev, slave_id, sl_cm_id);
+		if (IS_ERR(id)) {
+			mlx4_ib_warn(ibdev, "%s: id{slave: %d, sl_cm_id: 0x%x} Failed to id_map_alloc\n",
+				__func__, slave_id, sl_cm_id);
+			return PTR_ERR(id);
+		}
+	} else if (mad->mad_hdr.attr_id == CM_REJ_ATTR_ID) {
+		return 0;
+	} else {
+		id = id_map_get(ibdev, &pv_cm_id, slave_id, sl_cm_id);
+	}
+
+	if (!id) {
+		pr_debug("id{slave: %d, sl_cm_id: 0x%x} is NULL!\n",
+			 slave_id, sl_cm_id);
+		return -EINVAL;
+	}
+
+	set_local_comm_id(mad, id->pv_cm_id);
+
+	if (mad->mad_hdr.attr_id == CM_DREQ_ATTR_ID)
+		schedule_delayed(ibdev, id);
+	else if (mad->mad_hdr.attr_id == CM_DREP_ATTR_ID)
+		id_map_find_del(ibdev, pv_cm_id);
+
+	return 0;
+}
+
+int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
+							     struct ib_mad *mad)
+{
+	u32 pv_cm_id;
+	struct id_map_entry *id;
+
+	if (mad->mad_hdr.attr_id == CM_REQ_ATTR_ID) {
+		union ib_gid gid;
+
+		gid = gid_from_req_msg(ibdev, mad);
+		*slave = mlx4_ib_find_real_gid(ibdev, port, gid.global.interface_id);
+		if (*slave < 0) {
+			mlx4_ib_warn(ibdev, "failed matching slave_id by gid (0x%llx)\n",
+					gid.global.interface_id);
+			return -ENOENT;
+		}
+		return 0;
+	}
+
+	pv_cm_id = get_remote_comm_id(mad);
+	id = id_map_get(ibdev, (int *)&pv_cm_id, -1, -1);
+
+	if (!id) {
+		pr_debug("Couldn't find an entry for pv_cm_id 0x%x\n", pv_cm_id);
+		return -ENOENT;
+	}
+
+	*slave = id->slave_id;
+	set_remote_comm_id(mad, id->sl_cm_id);
+
+	if (mad->mad_hdr.attr_id == CM_DREQ_ATTR_ID)
+		schedule_delayed(ibdev, id);
+	else if (mad->mad_hdr.attr_id == CM_REJ_ATTR_ID ||
+			mad->mad_hdr.attr_id == CM_DREP_ATTR_ID) {
+		id_map_find_del(ibdev, (int) pv_cm_id);
+	}
+
+	return 0;
+}
+
+void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev)
+{
+	spin_lock_init(&dev->sriov.id_map_lock);
+	INIT_LIST_HEAD(&dev->sriov.cm_list);
+	dev->sriov.sl_id_map = RB_ROOT;
+	idr_init(&dev->sriov.pv_id_table);
+	idr_pre_get(&dev->sriov.pv_id_table, GFP_KERNEL);
+}
+
+/* slave = -1 ==> all slaves */
+/* TBD -- call paravirt clean for single slave.  Need for slave RESET event */
+void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave)
+{
+	struct mlx4_ib_sriov *sriov = &dev->sriov;
+	struct rb_root *sl_id_map = &sriov->sl_id_map;
+	struct list_head lh;
+	struct rb_node *nd;
+	int need_flush = 1;
+	struct id_map_entry *map, *tmp_map;
+	/* cancel all delayed work queue entries */
+	INIT_LIST_HEAD(&lh);
+	spin_lock(&sriov->id_map_lock);
+	list_for_each_entry_safe(map, tmp_map, &dev->sriov.cm_list, list) {
+		if (slave < 0 || slave == map->slave_id) {
+			if (map->scheduled_delete)
+				need_flush &= !!cancel_delayed_work(&map->timeout);
+		}
+	}
+
+	spin_unlock(&sriov->id_map_lock);
+
+	if (!need_flush)
+		flush_scheduled_work(); /* make sure all timers were flushed */
+
+	/* now, remove all leftover entries from databases*/
+	spin_lock(&sriov->id_map_lock);
+	if (slave < 0) {
+		while (rb_first(sl_id_map)) {
+			struct id_map_entry *ent =
+				rb_entry(rb_first(sl_id_map),
+					 struct id_map_entry, node);
+
+			rb_erase(&ent->node, sl_id_map);
+			idr_remove(&sriov->pv_id_table, (int) ent->pv_cm_id);
+		}
+		list_splice_init(&dev->sriov.cm_list, &lh);
+	} else {
+		/* first, move nodes belonging to slave to db remove list */
+		nd = rb_first(sl_id_map);
+		while (nd) {
+			struct id_map_entry *ent =
+				rb_entry(nd, struct id_map_entry, node);
+			nd = rb_next(nd);
+			if (ent->slave_id == slave)
+				list_move_tail(&ent->list, &lh);
+		}
+		/* remove those nodes from databases */
+		list_for_each_entry_safe(map, tmp_map, &lh, list) {
+			rb_erase(&map->node, sl_id_map);
+			idr_remove(&sriov->pv_id_table, (int) map->pv_cm_id);
+		}
+
+		/* add remaining nodes from cm_list */
+		list_for_each_entry_safe(map, tmp_map, &dev->sriov.cm_list, list) {
+			if (slave == map->slave_id)
+				list_move_tail(&map->list, &lh);
+		}
+	}
+
+	spin_unlock(&sriov->id_map_lock);
+
+	/* free any map entries left behind due to cancel_delayed_work above */
+	list_for_each_entry_safe(map, tmp_map, &lh, list) {
+		list_del(&map->list);
+		kfree(map);
+	}
+}
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 6d4ef71cbcd..c9eb6a6815c 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -547,6 +547,26 @@ static int mlx4_ib_ipoib_csum_ok(__be16 status, __be16 checksum)
 		checksum == cpu_to_be16(0xffff);
 }
 
+static int use_tunnel_data(struct mlx4_ib_qp *qp, struct mlx4_ib_cq *cq, struct ib_wc *wc,
+			   unsigned tail, struct mlx4_cqe *cqe)
+{
+	struct mlx4_ib_proxy_sqp_hdr *hdr;
+
+	ib_dma_sync_single_for_cpu(qp->ibqp.device,
+				   qp->sqp_proxy_rcv[tail].map,
+				   sizeof (struct mlx4_ib_proxy_sqp_hdr),
+				   DMA_FROM_DEVICE);
+	hdr = (struct mlx4_ib_proxy_sqp_hdr *) (qp->sqp_proxy_rcv[tail].addr);
+	wc->pkey_index	= be16_to_cpu(hdr->tun.pkey_index);
+	wc->slid	= be16_to_cpu(hdr->tun.slid_mac_47_32);
+	wc->sl		= (u8) (be16_to_cpu(hdr->tun.sl_vid) >> 12);
+	wc->src_qp	= be32_to_cpu(hdr->tun.flags_src_qp) & 0xFFFFFF;
+	wc->wc_flags   |= (hdr->tun.g_ml_path & 0x80) ? (IB_WC_GRH) : 0;
+	wc->dlid_path_bits = 0;
+
+	return 0;
+}
+
 static int mlx4_ib_poll_one(struct mlx4_ib_cq *cq,
 			    struct mlx4_ib_qp **cur_qp,
 			    struct ib_wc *wc)
@@ -559,6 +579,7 @@ static int mlx4_ib_poll_one(struct mlx4_ib_cq *cq,
 	int is_error;
 	u32 g_mlpath_rqpn;
 	u16 wqe_ctr;
+	unsigned tail = 0;
 
 repoll:
 	cqe = next_cqe_sw(cq);
@@ -634,7 +655,8 @@ repoll:
 		mlx4_ib_free_srq_wqe(srq, wqe_ctr);
 	} else {
 		wq	  = &(*cur_qp)->rq;
-		wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)];
+		tail	  = wq->tail & (wq->wqe_cnt - 1);
+		wc->wr_id = wq->wrid[tail];
 		++wq->tail;
 	}
 
@@ -717,6 +739,13 @@ repoll:
 			break;
 		}
 
+		if (mlx4_is_mfunc(to_mdev(cq->ibcq.device)->dev)) {
+			if ((*cur_qp)->mlx4_ib_qp_type &
+			    (MLX4_IB_QPT_PROXY_SMI_OWNER |
+			     MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI))
+				return use_tunnel_data(*cur_qp, cq, wc, tail, cqe);
+		}
+
 		wc->slid	   = be16_to_cpu(cqe->rlid);
 		g_mlpath_rqpn	   = be32_to_cpu(cqe->g_mlpath_rqpn);
 		wc->src_qp	   = g_mlpath_rqpn & 0xffffff;
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index c27141fef1a..21a794152d1 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -32,7 +32,10 @@
 
 #include <rdma/ib_mad.h>
 #include <rdma/ib_smi.h>
+#include <rdma/ib_sa.h>
+#include <rdma/ib_cache.h>
 
+#include <linux/random.h>
 #include <linux/mlx4/cmd.h>
 #include <linux/gfp.h>
 #include <rdma/ib_pma.h>
@@ -44,7 +47,62 @@ enum {
 	MLX4_IB_VENDOR_CLASS2 = 0xa
 };
 
-int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
+#define MLX4_TUN_SEND_WRID_SHIFT 34
+#define MLX4_TUN_QPN_SHIFT 32
+#define MLX4_TUN_WRID_RECV (((u64) 1) << MLX4_TUN_SEND_WRID_SHIFT)
+#define MLX4_TUN_SET_WRID_QPN(a) (((u64) ((a) & 0x3)) << MLX4_TUN_QPN_SHIFT)
+
+#define MLX4_TUN_IS_RECV(a)  (((a) >>  MLX4_TUN_SEND_WRID_SHIFT) & 0x1)
+#define MLX4_TUN_WRID_QPN(a) (((a) >> MLX4_TUN_QPN_SHIFT) & 0x3)
+
+ /* Port mgmt change event handling */
+
+#define GET_BLK_PTR_FROM_EQE(eqe) be32_to_cpu(eqe->event.port_mgmt_change.params.tbl_change_info.block_ptr)
+#define GET_MASK_FROM_EQE(eqe) be32_to_cpu(eqe->event.port_mgmt_change.params.tbl_change_info.tbl_entries_mask)
+#define NUM_IDX_IN_PKEY_TBL_BLK 32
+#define GUID_TBL_ENTRY_SIZE 8	   /* size in bytes */
+#define GUID_TBL_BLK_NUM_ENTRIES 8
+#define GUID_TBL_BLK_SIZE (GUID_TBL_ENTRY_SIZE * GUID_TBL_BLK_NUM_ENTRIES)
+
+struct mlx4_mad_rcv_buf {
+	struct ib_grh grh;
+	u8 payload[256];
+} __packed;
+
+struct mlx4_mad_snd_buf {
+	u8 payload[256];
+} __packed;
+
+struct mlx4_tunnel_mad {
+	struct ib_grh grh;
+	struct mlx4_ib_tunnel_header hdr;
+	struct ib_mad mad;
+} __packed;
+
+struct mlx4_rcv_tunnel_mad {
+	struct mlx4_rcv_tunnel_hdr hdr;
+	struct ib_grh grh;
+	struct ib_mad mad;
+} __packed;
+
+static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u8 port_num);
+static void handle_lid_change_event(struct mlx4_ib_dev *dev, u8 port_num);
+static void __propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num,
+				int block, u32 change_bitmap);
+
+__be64 mlx4_ib_gen_node_guid(void)
+{
+#define NODE_GUID_HI	((u64) (((u64)IB_OPENIB_OUI) << 40))
+	return cpu_to_be64(NODE_GUID_HI | random32());
+}
+
+__be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
+{
+	return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
+		cpu_to_be64(0xff00000000000000LL);
+}
+
+int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
 		 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
 		 void *in_mad, void *response_mad)
 {
@@ -71,10 +129,13 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
 	 * Key check traps can't be generated unless we have in_wc to
 	 * tell us where to send the trap.
 	 */
-	if (ignore_mkey || !in_wc)
+	if ((mad_ifc_flags & MLX4_MAD_IFC_IGNORE_MKEY) || !in_wc)
 		op_modifier |= 0x1;
-	if (ignore_bkey || !in_wc)
+	if ((mad_ifc_flags & MLX4_MAD_IFC_IGNORE_BKEY) || !in_wc)
 		op_modifier |= 0x2;
+	if (mlx4_is_mfunc(dev->dev) &&
+	    (mad_ifc_flags & MLX4_MAD_IFC_NET_VIEW || in_wc))
+		op_modifier |= 0x8;
 
 	if (in_wc) {
 		struct {
@@ -107,10 +168,10 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
 		in_modifier |= in_wc->slid << 16;
 	}
 
-	err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma,
-			   in_modifier, op_modifier,
+	err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma, in_modifier,
+			   mlx4_is_master(dev->dev) ? (op_modifier & ~0x8) : op_modifier,
 			   MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
-			   MLX4_CMD_NATIVE);
+			   (op_modifier & 0x8) ? MLX4_CMD_NATIVE : MLX4_CMD_WRAPPED);
 
 	if (!err)
 		memcpy(response_mad, outmailbox->buf, 256);
@@ -125,6 +186,7 @@ static void update_sm_ah(struct mlx4_ib_dev *dev, u8 port_num, u16 lid, u8 sl)
 {
 	struct ib_ah *new_ah;
 	struct ib_ah_attr ah_attr;
+	unsigned long flags;
 
 	if (!dev->send_agent[port_num - 1][0])
 		return;
@@ -139,11 +201,11 @@ static void update_sm_ah(struct mlx4_ib_dev *dev, u8 port_num, u16 lid, u8 sl)
 	if (IS_ERR(new_ah))
 		return;
 
-	spin_lock(&dev->sm_lock);
+	spin_lock_irqsave(&dev->sm_lock, flags);
 	if (dev->sm_ah[port_num - 1])
 		ib_destroy_ah(dev->sm_ah[port_num - 1]);
 	dev->sm_ah[port_num - 1] = new_ah;
-	spin_unlock(&dev->sm_lock);
+	spin_unlock_irqrestore(&dev->sm_lock, flags);
 }
 
 /*
@@ -155,6 +217,10 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
 {
 	struct ib_port_info *pinfo;
 	u16 lid;
+	__be16 *base;
+	u32 bn, pkey_change_bitmap;
+	int i;
+
 
 	struct mlx4_ib_dev *dev = to_mdev(ibdev);
 	if ((mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
@@ -170,17 +236,46 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
 				     pinfo->neighbormtu_mastersmsl & 0xf);
 
 			if (pinfo->clientrereg_resv_subnetto & 0x80)
-				mlx4_ib_dispatch_event(dev, port_num,
-						       IB_EVENT_CLIENT_REREGISTER);
+				handle_client_rereg_event(dev, port_num);
 
 			if (prev_lid != lid)
-				mlx4_ib_dispatch_event(dev, port_num,
-						       IB_EVENT_LID_CHANGE);
+				handle_lid_change_event(dev, port_num);
 			break;
 
 		case IB_SMP_ATTR_PKEY_TABLE:
-			mlx4_ib_dispatch_event(dev, port_num,
-					       IB_EVENT_PKEY_CHANGE);
+			if (!mlx4_is_mfunc(dev->dev)) {
+				mlx4_ib_dispatch_event(dev, port_num,
+						       IB_EVENT_PKEY_CHANGE);
+				break;
+			}
+
+			/* at this point, we are running in the master.
+			 * Slaves do not receive SMPs.
+			 */
+			bn  = be32_to_cpu(((struct ib_smp *)mad)->attr_mod) & 0xFFFF;
+			base = (__be16 *) &(((struct ib_smp *)mad)->data[0]);
+			pkey_change_bitmap = 0;
+			for (i = 0; i < 32; i++) {
+				pr_debug("PKEY[%d] = x%x\n",
+					 i + bn*32, be16_to_cpu(base[i]));
+				if (be16_to_cpu(base[i]) !=
+				    dev->pkeys.phys_pkey_cache[port_num - 1][i + bn*32]) {
+					pkey_change_bitmap |= (1 << i);
+					dev->pkeys.phys_pkey_cache[port_num - 1][i + bn*32] =
+						be16_to_cpu(base[i]);
+				}
+			}
+			pr_debug("PKEY Change event: port=%d, "
+				 "block=0x%x, change_bitmap=0x%x\n",
+				 port_num, bn, pkey_change_bitmap);
+
+			if (pkey_change_bitmap) {
+				mlx4_ib_dispatch_event(dev, port_num,
+						       IB_EVENT_PKEY_CHANGE);
+				if (!dev->sriov.is_going_down)
+					__propagate_pkey_ev(dev, port_num, bn,
+							    pkey_change_bitmap);
+			}
 			break;
 
 		case IB_SMP_ATTR_GUID_INFO:
@@ -188,22 +283,68 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
 			if (!mlx4_is_master(dev->dev))
 				mlx4_ib_dispatch_event(dev, port_num,
 						       IB_EVENT_GID_CHANGE);
+			/*if master, notify relevant slaves*/
+			if (mlx4_is_master(dev->dev) &&
+			    !dev->sriov.is_going_down) {
+				bn = be32_to_cpu(((struct ib_smp *)mad)->attr_mod);
+				mlx4_ib_update_cache_on_guid_change(dev, bn, port_num,
+								    (u8 *)(&((struct ib_smp *)mad)->data));
+				mlx4_ib_notify_slaves_on_guid_change(dev, bn, port_num,
+								     (u8 *)(&((struct ib_smp *)mad)->data));
+			}
 			break;
+
 		default:
 			break;
 		}
 }
 
+static void __propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num,
+				int block, u32 change_bitmap)
+{
+	int i, ix, slave, err;
+	int have_event = 0;
+
+	for (slave = 0; slave < dev->dev->caps.sqp_demux; slave++) {
+		if (slave == mlx4_master_func_num(dev->dev))
+			continue;
+		if (!mlx4_is_slave_active(dev->dev, slave))
+			continue;
+
+		have_event = 0;
+		for (i = 0; i < 32; i++) {
+			if (!(change_bitmap & (1 << i)))
+				continue;
+			for (ix = 0;
+			     ix < dev->dev->caps.pkey_table_len[port_num]; ix++) {
+				if (dev->pkeys.virt2phys_pkey[slave][port_num - 1]
+				    [ix] == i + 32 * block) {
+					err = mlx4_gen_pkey_eqe(dev->dev, slave, port_num);
+					pr_debug("propagate_pkey_ev: slave %d,"
+						 " port %d, ix %d (%d)\n",
+						 slave, port_num, ix, err);
+					have_event = 1;
+					break;
+				}
+			}
+			if (have_event)
+				break;
+		}
+	}
+}
+
 static void node_desc_override(struct ib_device *dev,
 			       struct ib_mad *mad)
 {
+	unsigned long flags;
+
 	if ((mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
 	     mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) &&
 	    mad->mad_hdr.method == IB_MGMT_METHOD_GET_RESP &&
 	    mad->mad_hdr.attr_id == IB_SMP_ATTR_NODE_DESC) {
-		spin_lock(&to_mdev(dev)->sm_lock);
+		spin_lock_irqsave(&to_mdev(dev)->sm_lock, flags);
 		memcpy(((struct ib_smp *) mad)->data, dev->node_desc, 64);
-		spin_unlock(&to_mdev(dev)->sm_lock);
+		spin_unlock_irqrestore(&to_mdev(dev)->sm_lock, flags);
 	}
 }
 
@@ -213,6 +354,7 @@ static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *ma
 	struct ib_mad_send_buf *send_buf;
 	struct ib_mad_agent *agent = dev->send_agent[port_num - 1][qpn];
 	int ret;
+	unsigned long flags;
 
 	if (agent) {
 		send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR,
@@ -225,19 +367,281 @@ static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *ma
 		 * wrong following the IB spec strictly, but we know
 		 * it's OK for our devices).
 		 */
-		spin_lock(&dev->sm_lock);
+		spin_lock_irqsave(&dev->sm_lock, flags);
 		memcpy(send_buf->mad, mad, sizeof *mad);
 		if ((send_buf->ah = dev->sm_ah[port_num - 1]))
 			ret = ib_post_send_mad(send_buf, NULL);
 		else
 			ret = -EINVAL;
-		spin_unlock(&dev->sm_lock);
+		spin_unlock_irqrestore(&dev->sm_lock, flags);
 
 		if (ret)
 			ib_free_send_mad(send_buf);
 	}
 }
 
+static int mlx4_ib_demux_sa_handler(struct ib_device *ibdev, int port, int slave,
+							     struct ib_sa_mad *sa_mad)
+{
+	int ret = 0;
+
+	/* dispatch to different sa handlers */
+	switch (be16_to_cpu(sa_mad->mad_hdr.attr_id)) {
+	case IB_SA_ATTR_MC_MEMBER_REC:
+		ret = mlx4_ib_mcg_demux_handler(ibdev, port, slave, sa_mad);
+		break;
+	default:
+		break;
+	}
+	return ret;
+}
+
+int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid)
+{
+	struct mlx4_ib_dev *dev = to_mdev(ibdev);
+	int i;
+
+	for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
+		if (dev->sriov.demux[port - 1].guid_cache[i] == guid)
+			return i;
+	}
+	return -1;
+}
+
+
+static int get_pkey_phys_indices(struct mlx4_ib_dev *ibdev, u8 port, u8 ph_pkey_ix,
+				 u8 *full_pk_ix, u8 *partial_pk_ix,
+				 int *is_full_member)
+{
+	u16 search_pkey;
+	int fm;
+	int err = 0;
+	u16 pk;
+
+	err = ib_get_cached_pkey(&ibdev->ib_dev, port, ph_pkey_ix, &search_pkey);
+	if (err)
+		return err;
+
+	fm = (search_pkey & 0x8000) ? 1 : 0;
+	if (fm) {
+		*full_pk_ix = ph_pkey_ix;
+		search_pkey &= 0x7FFF;
+	} else {
+		*partial_pk_ix = ph_pkey_ix;
+		search_pkey |= 0x8000;
+	}
+
+	if (ib_find_exact_cached_pkey(&ibdev->ib_dev, port, search_pkey, &pk))
+		pk = 0xFFFF;
+
+	if (fm)
+		*partial_pk_ix = (pk & 0xFF);
+	else
+		*full_pk_ix = (pk & 0xFF);
+
+	*is_full_member = fm;
+	return err;
+}
+
+int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
+			  enum ib_qp_type dest_qpt, struct ib_wc *wc,
+			  struct ib_grh *grh, struct ib_mad *mad)
+{
+	struct ib_sge list;
+	struct ib_send_wr wr, *bad_wr;
+	struct mlx4_ib_demux_pv_ctx *tun_ctx;
+	struct mlx4_ib_demux_pv_qp *tun_qp;
+	struct mlx4_rcv_tunnel_mad *tun_mad;
+	struct ib_ah_attr attr;
+	struct ib_ah *ah;
+	struct ib_qp *src_qp = NULL;
+	unsigned tun_tx_ix = 0;
+	int dqpn;
+	int ret = 0;
+	int i;
+	int is_full_member = 0;
+	u16 tun_pkey_ix;
+	u8 ph_pkey_ix, full_pk_ix = 0, partial_pk_ix = 0;
+
+	if (dest_qpt > IB_QPT_GSI)
+		return -EINVAL;
+
+	tun_ctx = dev->sriov.demux[port-1].tun[slave];
+
+	/* check if proxy qp created */
+	if (!tun_ctx || tun_ctx->state != DEMUX_PV_STATE_ACTIVE)
+		return -EAGAIN;
+
+	/* QP0 forwarding only for Dom0 */
+	if (!dest_qpt && (mlx4_master_func_num(dev->dev) != slave))
+		return -EINVAL;
+
+	if (!dest_qpt)
+		tun_qp = &tun_ctx->qp[0];
+	else
+		tun_qp = &tun_ctx->qp[1];
+
+	/* compute pkey index for slave */
+	/* get physical pkey -- virtualized Dom0 pkey to phys*/
+	if (dest_qpt) {
+		ph_pkey_ix =
+			dev->pkeys.virt2phys_pkey[mlx4_master_func_num(dev->dev)][port - 1][wc->pkey_index];
+
+		/* now, translate this to the slave pkey index */
+		ret = get_pkey_phys_indices(dev, port, ph_pkey_ix, &full_pk_ix,
+					    &partial_pk_ix, &is_full_member);
+		if (ret)
+			return -EINVAL;
+
+		for (i = 0; i < dev->dev->caps.pkey_table_len[port]; i++) {
+			if ((dev->pkeys.virt2phys_pkey[slave][port - 1][i] == full_pk_ix) ||
+			    (is_full_member &&
+			     (dev->pkeys.virt2phys_pkey[slave][port - 1][i] == partial_pk_ix)))
+				break;
+		}
+		if (i == dev->dev->caps.pkey_table_len[port])
+			return -EINVAL;
+		tun_pkey_ix = i;
+	} else
+		tun_pkey_ix = dev->pkeys.virt2phys_pkey[slave][port - 1][0];
+
+	dqpn = dev->dev->phys_caps.base_proxy_sqpn + 8 * slave + port + (dest_qpt * 2) - 1;
+
+	/* get tunnel tx data buf for slave */
+	src_qp = tun_qp->qp;
+
+	/* create ah. Just need an empty one with the port num for the post send.
+	 * The driver will set the force loopback bit in post_send */
+	memset(&attr, 0, sizeof attr);
+	attr.port_num = port;
+	ah = ib_create_ah(tun_ctx->pd, &attr);
+	if (IS_ERR(ah))
+		return -ENOMEM;
+
+	/* allocate tunnel tx buf after pass failure returns */
+	spin_lock(&tun_qp->tx_lock);
+	if (tun_qp->tx_ix_head - tun_qp->tx_ix_tail >=
+	    (MLX4_NUM_TUNNEL_BUFS - 1))
+		ret = -EAGAIN;
+	else
+		tun_tx_ix = (++tun_qp->tx_ix_head) & (MLX4_NUM_TUNNEL_BUFS - 1);
+	spin_unlock(&tun_qp->tx_lock);
+	if (ret)
+		goto out;
+
+	tun_mad = (struct mlx4_rcv_tunnel_mad *) (tun_qp->tx_ring[tun_tx_ix].buf.addr);
+	if (tun_qp->tx_ring[tun_tx_ix].ah)
+		ib_destroy_ah(tun_qp->tx_ring[tun_tx_ix].ah);
+	tun_qp->tx_ring[tun_tx_ix].ah = ah;
+	ib_dma_sync_single_for_cpu(&dev->ib_dev,
+				   tun_qp->tx_ring[tun_tx_ix].buf.map,
+				   sizeof (struct mlx4_rcv_tunnel_mad),
+				   DMA_TO_DEVICE);
+
+	/* copy over to tunnel buffer */
+	if (grh)
+		memcpy(&tun_mad->grh, grh, sizeof *grh);
+	memcpy(&tun_mad->mad, mad, sizeof *mad);
+
+	/* adjust tunnel data */
+	tun_mad->hdr.pkey_index = cpu_to_be16(tun_pkey_ix);
+	tun_mad->hdr.sl_vid = cpu_to_be16(((u16)(wc->sl)) << 12);
+	tun_mad->hdr.slid_mac_47_32 = cpu_to_be16(wc->slid);
+	tun_mad->hdr.flags_src_qp = cpu_to_be32(wc->src_qp & 0xFFFFFF);
+	tun_mad->hdr.g_ml_path = (grh && (wc->wc_flags & IB_WC_GRH)) ? 0x80 : 0;
+
+	ib_dma_sync_single_for_device(&dev->ib_dev,
+				      tun_qp->tx_ring[tun_tx_ix].buf.map,
+				      sizeof (struct mlx4_rcv_tunnel_mad),
+				      DMA_TO_DEVICE);
+
+	list.addr = tun_qp->tx_ring[tun_tx_ix].buf.map;
+	list.length = sizeof (struct mlx4_rcv_tunnel_mad);
+	list.lkey = tun_ctx->mr->lkey;
+
+	wr.wr.ud.ah = ah;
+	wr.wr.ud.port_num = port;
+	wr.wr.ud.remote_qkey = IB_QP_SET_QKEY;
+	wr.wr.ud.remote_qpn = dqpn;
+	wr.next = NULL;
+	wr.wr_id = ((u64) tun_tx_ix) | MLX4_TUN_SET_WRID_QPN(dest_qpt);
+	wr.sg_list = &list;
+	wr.num_sge = 1;
+	wr.opcode = IB_WR_SEND;
+	wr.send_flags = IB_SEND_SIGNALED;
+
+	ret = ib_post_send(src_qp, &wr, &bad_wr);
+out:
+	if (ret)
+		ib_destroy_ah(ah);
+	return ret;
+}
+
+static int mlx4_ib_demux_mad(struct ib_device *ibdev, u8 port,
+			struct ib_wc *wc, struct ib_grh *grh,
+			struct ib_mad *mad)
+{
+	struct mlx4_ib_dev *dev = to_mdev(ibdev);
+	int err;
+	int slave;
+	u8 *slave_id;
+
+	/* Initially assume that this mad is for us */
+	slave = mlx4_master_func_num(dev->dev);
+
+	/* See if the slave id is encoded in a response mad */
+	if (mad->mad_hdr.method & 0x80) {
+		slave_id = (u8 *) &mad->mad_hdr.tid;
+		slave = *slave_id;
+		if (slave != 255) /*255 indicates the dom0*/
+			*slave_id = 0; /* remap tid */
+	}
+
+	/* If a grh is present, we demux according to it */
+	if (wc->wc_flags & IB_WC_GRH) {
+		slave = mlx4_ib_find_real_gid(ibdev, port, grh->dgid.global.interface_id);
+		if (slave < 0) {
+			mlx4_ib_warn(ibdev, "failed matching grh\n");
+			return -ENOENT;
+		}
+	}
+	/* Class-specific handling */
+	switch (mad->mad_hdr.mgmt_class) {
+	case IB_MGMT_CLASS_SUBN_ADM:
+		if (mlx4_ib_demux_sa_handler(ibdev, port, slave,
+					     (struct ib_sa_mad *) mad))
+			return 0;
+		break;
+	case IB_MGMT_CLASS_CM:
+		if (mlx4_ib_demux_cm_handler(ibdev, port, &slave, mad))
+			return 0;
+		break;
+	case IB_MGMT_CLASS_DEVICE_MGMT:
+		if (mad->mad_hdr.method != IB_MGMT_METHOD_GET_RESP)
+			return 0;
+		break;
+	default:
+		/* Drop unsupported classes for slaves in tunnel mode */
+		if (slave != mlx4_master_func_num(dev->dev)) {
+			pr_debug("dropping unsupported ingress mad from class:%d "
+				 "for slave:%d\n", mad->mad_hdr.mgmt_class, slave);
+			return 0;
+		}
+	}
+	/*make sure that no slave==255 was not handled yet.*/
+	if (slave >= dev->dev->caps.sqp_demux) {
+		mlx4_ib_warn(ibdev, "slave id: %d is bigger than allowed:%d\n",
+			     slave, dev->dev->caps.sqp_demux);
+		return -ENOENT;
+	}
+
+	err = mlx4_ib_send_to_slave(dev, slave, port, wc->qp->qp_type, wc, grh, mad);
+	if (err)
+		pr_debug("failed sending to slave %d via tunnel qp (%d)\n",
+			 slave, err);
+	return 0;
+}
+
 static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 			struct ib_wc *in_wc, struct ib_grh *in_grh,
 			struct ib_mad *in_mad, struct ib_mad *out_mad)
@@ -302,8 +706,9 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 		prev_lid = pattr.lid;
 
 	err = mlx4_MAD_IFC(to_mdev(ibdev),
-			   mad_flags & IB_MAD_IGNORE_MKEY,
-			   mad_flags & IB_MAD_IGNORE_BKEY,
+			   (mad_flags & IB_MAD_IGNORE_MKEY ? MLX4_MAD_IFC_IGNORE_MKEY : 0) |
+			   (mad_flags & IB_MAD_IGNORE_BKEY ? MLX4_MAD_IFC_IGNORE_BKEY : 0) |
+			   MLX4_MAD_IFC_NET_VIEW,
 			   port_num, in_wc, in_grh, in_mad, out_mad);
 	if (err)
 		return IB_MAD_RESULT_FAILURE;
@@ -311,7 +716,9 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 	if (!out_mad->mad_hdr.status) {
 		if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV))
 			smp_snoop(ibdev, port_num, in_mad, prev_lid);
-		node_desc_override(ibdev, out_mad);
+		/* slaves get node desc from FW */
+		if (!mlx4_is_slave(to_mdev(ibdev)->dev))
+			node_desc_override(ibdev, out_mad);
 	}
 
 	/* set return bit in status of directed route responses */
@@ -394,6 +801,8 @@ int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 static void send_handler(struct ib_mad_agent *agent,
 			 struct ib_mad_send_wc *mad_send_wc)
 {
+	if (mad_send_wc->send_buf->context[0])
+		ib_destroy_ah(mad_send_wc->send_buf->context[0]);
 	ib_free_send_mad(mad_send_wc->send_buf);
 }
 
@@ -452,6 +861,90 @@ void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev)
 	}
 }
 
+static void handle_lid_change_event(struct mlx4_ib_dev *dev, u8 port_num)
+{
+	mlx4_ib_dispatch_event(dev, port_num, IB_EVENT_LID_CHANGE);
+
+	if (mlx4_is_master(dev->dev) && !dev->sriov.is_going_down)
+		mlx4_gen_slaves_port_mgt_ev(dev->dev, port_num,
+					    MLX4_EQ_PORT_INFO_LID_CHANGE_MASK);
+}
+
+static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u8 port_num)
+{
+	/* re-configure the alias-guid and mcg's */
+	if (mlx4_is_master(dev->dev)) {
+		mlx4_ib_invalidate_all_guid_record(dev, port_num);
+
+		if (!dev->sriov.is_going_down) {
+			mlx4_ib_mcg_port_cleanup(&dev->sriov.demux[port_num - 1], 0);
+			mlx4_gen_slaves_port_mgt_ev(dev->dev, port_num,
+						    MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK);
+		}
+	}
+	mlx4_ib_dispatch_event(dev, port_num, IB_EVENT_CLIENT_REREGISTER);
+}
+
+static void propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num,
+			      struct mlx4_eqe *eqe)
+{
+	__propagate_pkey_ev(dev, port_num, GET_BLK_PTR_FROM_EQE(eqe),
+			    GET_MASK_FROM_EQE(eqe));
+}
+
+static void handle_slaves_guid_change(struct mlx4_ib_dev *dev, u8 port_num,
+				      u32 guid_tbl_blk_num, u32 change_bitmap)
+{
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad  = NULL;
+	u16 i;
+
+	if (!mlx4_is_mfunc(dev->dev) || !mlx4_is_master(dev->dev))
+		return;
+
+	in_mad  = kmalloc(sizeof *in_mad, GFP_KERNEL);
+	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+	if (!in_mad || !out_mad) {
+		mlx4_ib_warn(&dev->ib_dev, "failed to allocate memory for guid info mads\n");
+		goto out;
+	}
+
+	guid_tbl_blk_num  *= 4;
+
+	for (i = 0; i < 4; i++) {
+		if (change_bitmap && (!((change_bitmap >> (8 * i)) & 0xff)))
+			continue;
+		memset(in_mad, 0, sizeof *in_mad);
+		memset(out_mad, 0, sizeof *out_mad);
+
+		in_mad->base_version  = 1;
+		in_mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
+		in_mad->class_version = 1;
+		in_mad->method        = IB_MGMT_METHOD_GET;
+		in_mad->attr_id       = IB_SMP_ATTR_GUID_INFO;
+		in_mad->attr_mod      = cpu_to_be32(guid_tbl_blk_num + i);
+
+		if (mlx4_MAD_IFC(dev,
+				 MLX4_MAD_IFC_IGNORE_KEYS | MLX4_MAD_IFC_NET_VIEW,
+				 port_num, NULL, NULL, in_mad, out_mad)) {
+			mlx4_ib_warn(&dev->ib_dev, "Failed in get GUID INFO MAD_IFC\n");
+			goto out;
+		}
+
+		mlx4_ib_update_cache_on_guid_change(dev, guid_tbl_blk_num + i,
+						    port_num,
+						    (u8 *)(&((struct ib_smp *)out_mad)->data));
+		mlx4_ib_notify_slaves_on_guid_change(dev, guid_tbl_blk_num + i,
+						     port_num,
+						     (u8 *)(&((struct ib_smp *)out_mad)->data));
+	}
+
+out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return;
+}
+
 void handle_port_mgmt_change_event(struct work_struct *work)
 {
 	struct ib_event_work *ew = container_of(work, struct ib_event_work, work);
@@ -459,6 +952,8 @@ void handle_port_mgmt_change_event(struct work_struct *work)
 	struct mlx4_eqe *eqe = &(ew->ib_eqe);
 	u8 port = eqe->event.port_mgmt_change.port;
 	u32 changed_attr;
+	u32 tbl_block;
+	u32 change_bitmap;
 
 	switch (eqe->subtype) {
 	case MLX4_DEV_PMC_SUBTYPE_PORT_INFO:
@@ -474,24 +969,36 @@ void handle_port_mgmt_change_event(struct work_struct *work)
 
 		/* Check if it is a lid change event */
 		if (changed_attr & MLX4_EQ_PORT_INFO_LID_CHANGE_MASK)
-			mlx4_ib_dispatch_event(dev, port, IB_EVENT_LID_CHANGE);
+			handle_lid_change_event(dev, port);
 
 		/* Generate GUID changed event */
-		if (changed_attr & MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK)
+		if (changed_attr & MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK) {
 			mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE);
+			/*if master, notify all slaves*/
+			if (mlx4_is_master(dev->dev))
+				mlx4_gen_slaves_port_mgt_ev(dev->dev, port,
+							    MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK);
+		}
 
 		if (changed_attr & MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK)
-			mlx4_ib_dispatch_event(dev, port,
-					       IB_EVENT_CLIENT_REREGISTER);
+			handle_client_rereg_event(dev, port);
 		break;
 
 	case MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE:
 		mlx4_ib_dispatch_event(dev, port, IB_EVENT_PKEY_CHANGE);
+		if (mlx4_is_master(dev->dev) && !dev->sriov.is_going_down)
+			propagate_pkey_ev(dev, port, eqe);
 		break;
 	case MLX4_DEV_PMC_SUBTYPE_GUID_INFO:
 		/* paravirtualized master's guid is guid 0 -- does not change */
 		if (!mlx4_is_master(dev->dev))
 			mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE);
+		/*if master, notify relevant slaves*/
+		else if (!dev->sriov.is_going_down) {
+			tbl_block = GET_BLK_PTR_FROM_EQE(eqe);
+			change_bitmap = GET_MASK_FROM_EQE(eqe);
+			handle_slaves_guid_change(dev, port, tbl_block, change_bitmap);
+		}
 		break;
 	default:
 		pr_warn("Unsupported subtype 0x%x for "
@@ -512,3 +1019,1035 @@ void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
 
 	ib_dispatch_event(&event);
 }
+
+static void mlx4_ib_tunnel_comp_handler(struct ib_cq *cq, void *arg)
+{
+	unsigned long flags;
+	struct mlx4_ib_demux_pv_ctx *ctx = cq->cq_context;
+	struct mlx4_ib_dev *dev = to_mdev(ctx->ib_dev);
+	spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+	if (!dev->sriov.is_going_down && ctx->state == DEMUX_PV_STATE_ACTIVE)
+		queue_work(ctx->wq, &ctx->work);
+	spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+}
+
+static int mlx4_ib_post_pv_qp_buf(struct mlx4_ib_demux_pv_ctx *ctx,
+				  struct mlx4_ib_demux_pv_qp *tun_qp,
+				  int index)
+{
+	struct ib_sge sg_list;
+	struct ib_recv_wr recv_wr, *bad_recv_wr;
+	int size;
+
+	size = (tun_qp->qp->qp_type == IB_QPT_UD) ?
+		sizeof (struct mlx4_tunnel_mad) : sizeof (struct mlx4_mad_rcv_buf);
+
+	sg_list.addr = tun_qp->ring[index].map;
+	sg_list.length = size;
+	sg_list.lkey = ctx->mr->lkey;
+
+	recv_wr.next = NULL;
+	recv_wr.sg_list = &sg_list;
+	recv_wr.num_sge = 1;
+	recv_wr.wr_id = (u64) index | MLX4_TUN_WRID_RECV |
+		MLX4_TUN_SET_WRID_QPN(tun_qp->proxy_qpt);
+	ib_dma_sync_single_for_device(ctx->ib_dev, tun_qp->ring[index].map,
+				      size, DMA_FROM_DEVICE);
+	return ib_post_recv(tun_qp->qp, &recv_wr, &bad_recv_wr);
+}
+
+static int mlx4_ib_multiplex_sa_handler(struct ib_device *ibdev, int port,
+		int slave, struct ib_sa_mad *sa_mad)
+{
+	int ret = 0;
+
+	/* dispatch to different sa handlers */
+	switch (be16_to_cpu(sa_mad->mad_hdr.attr_id)) {
+	case IB_SA_ATTR_MC_MEMBER_REC:
+		ret = mlx4_ib_mcg_multiplex_handler(ibdev, port, slave, sa_mad);
+		break;
+	default:
+		break;
+	}
+	return ret;
+}
+
+static int is_proxy_qp0(struct mlx4_ib_dev *dev, int qpn, int slave)
+{
+	int proxy_start = dev->dev->phys_caps.base_proxy_sqpn + 8 * slave;
+
+	return (qpn >= proxy_start && qpn <= proxy_start + 1);
+}
+
+
+int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
+			 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
+			 u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad)
+{
+	struct ib_sge list;
+	struct ib_send_wr wr, *bad_wr;
+	struct mlx4_ib_demux_pv_ctx *sqp_ctx;
+	struct mlx4_ib_demux_pv_qp *sqp;
+	struct mlx4_mad_snd_buf *sqp_mad;
+	struct ib_ah *ah;
+	struct ib_qp *send_qp = NULL;
+	unsigned wire_tx_ix = 0;
+	int ret = 0;
+	u16 wire_pkey_ix;
+	int src_qpnum;
+	u8 sgid_index;
+
+
+	sqp_ctx = dev->sriov.sqps[port-1];
+
+	/* check if proxy qp created */
+	if (!sqp_ctx || sqp_ctx->state != DEMUX_PV_STATE_ACTIVE)
+		return -EAGAIN;
+
+	/* QP0 forwarding only for Dom0 */
+	if (dest_qpt == IB_QPT_SMI && (mlx4_master_func_num(dev->dev) != slave))
+		return -EINVAL;
+
+	if (dest_qpt == IB_QPT_SMI) {
+		src_qpnum = 0;
+		sqp = &sqp_ctx->qp[0];
+		wire_pkey_ix = dev->pkeys.virt2phys_pkey[slave][port - 1][0];
+	} else {
+		src_qpnum = 1;
+		sqp = &sqp_ctx->qp[1];
+		wire_pkey_ix = dev->pkeys.virt2phys_pkey[slave][port - 1][pkey_index];
+	}
+
+	send_qp = sqp->qp;
+
+	/* create ah */
+	sgid_index = attr->grh.sgid_index;
+	attr->grh.sgid_index = 0;
+	ah = ib_create_ah(sqp_ctx->pd, attr);
+	if (IS_ERR(ah))
+		return -ENOMEM;
+	attr->grh.sgid_index = sgid_index;
+	to_mah(ah)->av.ib.gid_index = sgid_index;
+	/* get rid of force-loopback bit */
+	to_mah(ah)->av.ib.port_pd &= cpu_to_be32(0x7FFFFFFF);
+	spin_lock(&sqp->tx_lock);
+	if (sqp->tx_ix_head - sqp->tx_ix_tail >=
+	    (MLX4_NUM_TUNNEL_BUFS - 1))
+		ret = -EAGAIN;
+	else
+		wire_tx_ix = (++sqp->tx_ix_head) & (MLX4_NUM_TUNNEL_BUFS - 1);
+	spin_unlock(&sqp->tx_lock);
+	if (ret)
+		goto out;
+
+	sqp_mad = (struct mlx4_mad_snd_buf *) (sqp->tx_ring[wire_tx_ix].buf.addr);
+	if (sqp->tx_ring[wire_tx_ix].ah)
+		ib_destroy_ah(sqp->tx_ring[wire_tx_ix].ah);
+	sqp->tx_ring[wire_tx_ix].ah = ah;
+	ib_dma_sync_single_for_cpu(&dev->ib_dev,
+				   sqp->tx_ring[wire_tx_ix].buf.map,
+				   sizeof (struct mlx4_mad_snd_buf),
+				   DMA_TO_DEVICE);
+
+	memcpy(&sqp_mad->payload, mad, sizeof *mad);
+
+	ib_dma_sync_single_for_device(&dev->ib_dev,
+				      sqp->tx_ring[wire_tx_ix].buf.map,
+				      sizeof (struct mlx4_mad_snd_buf),
+				      DMA_TO_DEVICE);
+
+	list.addr = sqp->tx_ring[wire_tx_ix].buf.map;
+	list.length = sizeof (struct mlx4_mad_snd_buf);
+	list.lkey = sqp_ctx->mr->lkey;
+
+	wr.wr.ud.ah = ah;
+	wr.wr.ud.port_num = port;
+	wr.wr.ud.pkey_index = wire_pkey_ix;
+	wr.wr.ud.remote_qkey = qkey;
+	wr.wr.ud.remote_qpn = remote_qpn;
+	wr.next = NULL;
+	wr.wr_id = ((u64) wire_tx_ix) | MLX4_TUN_SET_WRID_QPN(src_qpnum);
+	wr.sg_list = &list;
+	wr.num_sge = 1;
+	wr.opcode = IB_WR_SEND;
+	wr.send_flags = IB_SEND_SIGNALED;
+
+	ret = ib_post_send(send_qp, &wr, &bad_wr);
+out:
+	if (ret)
+		ib_destroy_ah(ah);
+	return ret;
+}
+
+static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc *wc)
+{
+	struct mlx4_ib_dev *dev = to_mdev(ctx->ib_dev);
+	struct mlx4_ib_demux_pv_qp *tun_qp = &ctx->qp[MLX4_TUN_WRID_QPN(wc->wr_id)];
+	int wr_ix = wc->wr_id & (MLX4_NUM_TUNNEL_BUFS - 1);
+	struct mlx4_tunnel_mad *tunnel = tun_qp->ring[wr_ix].addr;
+	struct mlx4_ib_ah ah;
+	struct ib_ah_attr ah_attr;
+	u8 *slave_id;
+	int slave;
+
+	/* Get slave that sent this packet */
+	if (wc->src_qp < dev->dev->phys_caps.base_proxy_sqpn ||
+	    wc->src_qp >= dev->dev->phys_caps.base_proxy_sqpn + 8 * MLX4_MFUNC_MAX ||
+	    (wc->src_qp & 0x1) != ctx->port - 1 ||
+	    wc->src_qp & 0x4) {
+		mlx4_ib_warn(ctx->ib_dev, "can't multiplex bad sqp:%d\n", wc->src_qp);
+		return;
+	}
+	slave = ((wc->src_qp & ~0x7) - dev->dev->phys_caps.base_proxy_sqpn) / 8;
+	if (slave != ctx->slave) {
+		mlx4_ib_warn(ctx->ib_dev, "can't multiplex bad sqp:%d: "
+			     "belongs to another slave\n", wc->src_qp);
+		return;
+	}
+	if (slave != mlx4_master_func_num(dev->dev) && !(wc->src_qp & 0x2)) {
+		mlx4_ib_warn(ctx->ib_dev, "can't multiplex bad sqp:%d: "
+			     "non-master trying to send QP0 packets\n", wc->src_qp);
+		return;
+	}
+
+	/* Map transaction ID */
+	ib_dma_sync_single_for_cpu(ctx->ib_dev, tun_qp->ring[wr_ix].map,
+				   sizeof (struct mlx4_tunnel_mad),
+				   DMA_FROM_DEVICE);
+	switch (tunnel->mad.mad_hdr.method) {
+	case IB_MGMT_METHOD_SET:
+	case IB_MGMT_METHOD_GET:
+	case IB_MGMT_METHOD_REPORT:
+	case IB_SA_METHOD_GET_TABLE:
+	case IB_SA_METHOD_DELETE:
+	case IB_SA_METHOD_GET_MULTI:
+	case IB_SA_METHOD_GET_TRACE_TBL:
+		slave_id = (u8 *) &tunnel->mad.mad_hdr.tid;
+		if (*slave_id) {
+			mlx4_ib_warn(ctx->ib_dev, "egress mad has non-null tid msb:%d "
+				     "class:%d slave:%d\n", *slave_id,
+				     tunnel->mad.mad_hdr.mgmt_class, slave);
+			return;
+		} else
+			*slave_id = slave;
+	default:
+		/* nothing */;
+	}
+
+	/* Class-specific handling */
+	switch (tunnel->mad.mad_hdr.mgmt_class) {
+	case IB_MGMT_CLASS_SUBN_ADM:
+		if (mlx4_ib_multiplex_sa_handler(ctx->ib_dev, ctx->port, slave,
+			      (struct ib_sa_mad *) &tunnel->mad))
+			return;
+		break;
+	case IB_MGMT_CLASS_CM:
+		if (mlx4_ib_multiplex_cm_handler(ctx->ib_dev, ctx->port, slave,
+			      (struct ib_mad *) &tunnel->mad))
+			return;
+		break;
+	case IB_MGMT_CLASS_DEVICE_MGMT:
+		if (tunnel->mad.mad_hdr.method != IB_MGMT_METHOD_GET &&
+		    tunnel->mad.mad_hdr.method != IB_MGMT_METHOD_SET)
+			return;
+		break;
+	default:
+		/* Drop unsupported classes for slaves in tunnel mode */
+		if (slave != mlx4_master_func_num(dev->dev)) {
+			mlx4_ib_warn(ctx->ib_dev, "dropping unsupported egress mad from class:%d "
+				     "for slave:%d\n", tunnel->mad.mad_hdr.mgmt_class, slave);
+			return;
+		}
+	}
+
+	/* We are using standard ib_core services to send the mad, so generate a
+	 * stadard address handle by decoding the tunnelled mlx4_ah fields */
+	memcpy(&ah.av, &tunnel->hdr.av, sizeof (struct mlx4_av));
+	ah.ibah.device = ctx->ib_dev;
+	mlx4_ib_query_ah(&ah.ibah, &ah_attr);
+	if ((ah_attr.ah_flags & IB_AH_GRH) &&
+	    (ah_attr.grh.sgid_index != slave)) {
+		mlx4_ib_warn(ctx->ib_dev, "slave:%d accessed invalid sgid_index:%d\n",
+			     slave, ah_attr.grh.sgid_index);
+		return;
+	}
+
+	mlx4_ib_send_to_wire(dev, slave, ctx->port,
+			     is_proxy_qp0(dev, wc->src_qp, slave) ?
+			     IB_QPT_SMI : IB_QPT_GSI,
+			     be16_to_cpu(tunnel->hdr.pkey_index),
+			     be32_to_cpu(tunnel->hdr.remote_qpn),
+			     be32_to_cpu(tunnel->hdr.qkey),
+			     &ah_attr, &tunnel->mad);
+}
+
+static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
+				 enum ib_qp_type qp_type, int is_tun)
+{
+	int i;
+	struct mlx4_ib_demux_pv_qp *tun_qp;
+	int rx_buf_size, tx_buf_size;
+
+	if (qp_type > IB_QPT_GSI)
+		return -EINVAL;
+
+	tun_qp = &ctx->qp[qp_type];
+
+	tun_qp->ring = kzalloc(sizeof (struct mlx4_ib_buf) * MLX4_NUM_TUNNEL_BUFS,
+			       GFP_KERNEL);
+	if (!tun_qp->ring)
+		return -ENOMEM;
+
+	tun_qp->tx_ring = kcalloc(MLX4_NUM_TUNNEL_BUFS,
+				  sizeof (struct mlx4_ib_tun_tx_buf),
+				  GFP_KERNEL);
+	if (!tun_qp->tx_ring) {
+		kfree(tun_qp->ring);
+		tun_qp->ring = NULL;
+		return -ENOMEM;
+	}
+
+	if (is_tun) {
+		rx_buf_size = sizeof (struct mlx4_tunnel_mad);
+		tx_buf_size = sizeof (struct mlx4_rcv_tunnel_mad);
+	} else {
+		rx_buf_size = sizeof (struct mlx4_mad_rcv_buf);
+		tx_buf_size = sizeof (struct mlx4_mad_snd_buf);
+	}
+
+	for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+		tun_qp->ring[i].addr = kmalloc(rx_buf_size, GFP_KERNEL);
+		if (!tun_qp->ring[i].addr)
+			goto err;
+		tun_qp->ring[i].map = ib_dma_map_single(ctx->ib_dev,
+							tun_qp->ring[i].addr,
+							rx_buf_size,
+							DMA_FROM_DEVICE);
+	}
+
+	for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+		tun_qp->tx_ring[i].buf.addr =
+			kmalloc(tx_buf_size, GFP_KERNEL);
+		if (!tun_qp->tx_ring[i].buf.addr)
+			goto tx_err;
+		tun_qp->tx_ring[i].buf.map =
+			ib_dma_map_single(ctx->ib_dev,
+					  tun_qp->tx_ring[i].buf.addr,
+					  tx_buf_size,
+					  DMA_TO_DEVICE);
+		tun_qp->tx_ring[i].ah = NULL;
+	}
+	spin_lock_init(&tun_qp->tx_lock);
+	tun_qp->tx_ix_head = 0;
+	tun_qp->tx_ix_tail = 0;
+	tun_qp->proxy_qpt = qp_type;
+
+	return 0;
+
+tx_err:
+	while (i > 0) {
+		--i;
+		ib_dma_unmap_single(ctx->ib_dev, tun_qp->tx_ring[i].buf.map,
+				    tx_buf_size, DMA_TO_DEVICE);
+		kfree(tun_qp->tx_ring[i].buf.addr);
+	}
+	kfree(tun_qp->tx_ring);
+	tun_qp->tx_ring = NULL;
+	i = MLX4_NUM_TUNNEL_BUFS;
+err:
+	while (i > 0) {
+		--i;
+		ib_dma_unmap_single(ctx->ib_dev, tun_qp->ring[i].map,
+				    rx_buf_size, DMA_FROM_DEVICE);
+		kfree(tun_qp->ring[i].addr);
+	}
+	kfree(tun_qp->ring);
+	tun_qp->ring = NULL;
+	return -ENOMEM;
+}
+
+static void mlx4_ib_free_pv_qp_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
+				     enum ib_qp_type qp_type, int is_tun)
+{
+	int i;
+	struct mlx4_ib_demux_pv_qp *tun_qp;
+	int rx_buf_size, tx_buf_size;
+
+	if (qp_type > IB_QPT_GSI)
+		return;
+
+	tun_qp = &ctx->qp[qp_type];
+	if (is_tun) {
+		rx_buf_size = sizeof (struct mlx4_tunnel_mad);
+		tx_buf_size = sizeof (struct mlx4_rcv_tunnel_mad);
+	} else {
+		rx_buf_size = sizeof (struct mlx4_mad_rcv_buf);
+		tx_buf_size = sizeof (struct mlx4_mad_snd_buf);
+	}
+
+
+	for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+		ib_dma_unmap_single(ctx->ib_dev, tun_qp->ring[i].map,
+				    rx_buf_size, DMA_FROM_DEVICE);
+		kfree(tun_qp->ring[i].addr);
+	}
+
+	for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+		ib_dma_unmap_single(ctx->ib_dev, tun_qp->tx_ring[i].buf.map,
+				    tx_buf_size, DMA_TO_DEVICE);
+		kfree(tun_qp->tx_ring[i].buf.addr);
+		if (tun_qp->tx_ring[i].ah)
+			ib_destroy_ah(tun_qp->tx_ring[i].ah);
+	}
+	kfree(tun_qp->tx_ring);
+	kfree(tun_qp->ring);
+}
+
+static void mlx4_ib_tunnel_comp_worker(struct work_struct *work)
+{
+	struct mlx4_ib_demux_pv_ctx *ctx;
+	struct mlx4_ib_demux_pv_qp *tun_qp;
+	struct ib_wc wc;
+	int ret;
+	ctx = container_of(work, struct mlx4_ib_demux_pv_ctx, work);
+	ib_req_notify_cq(ctx->cq, IB_CQ_NEXT_COMP);
+
+	while (ib_poll_cq(ctx->cq, 1, &wc) == 1) {
+		tun_qp = &ctx->qp[MLX4_TUN_WRID_QPN(wc.wr_id)];
+		if (wc.status == IB_WC_SUCCESS) {
+			switch (wc.opcode) {
+			case IB_WC_RECV:
+				mlx4_ib_multiplex_mad(ctx, &wc);
+				ret = mlx4_ib_post_pv_qp_buf(ctx, tun_qp,
+							     wc.wr_id &
+							     (MLX4_NUM_TUNNEL_BUFS - 1));
+				if (ret)
+					pr_err("Failed reposting tunnel "
+					       "buf:%lld\n", wc.wr_id);
+				break;
+			case IB_WC_SEND:
+				pr_debug("received tunnel send completion:"
+					 "wrid=0x%llx, status=0x%x\n",
+					 wc.wr_id, wc.status);
+				ib_destroy_ah(tun_qp->tx_ring[wc.wr_id &
+					      (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
+				tun_qp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
+					= NULL;
+				spin_lock(&tun_qp->tx_lock);
+				tun_qp->tx_ix_tail++;
+				spin_unlock(&tun_qp->tx_lock);
+
+				break;
+			default:
+				break;
+			}
+		} else  {
+			pr_debug("mlx4_ib: completion error in tunnel: %d."
+				 " status = %d, wrid = 0x%llx\n",
+				 ctx->slave, wc.status, wc.wr_id);
+			if (!MLX4_TUN_IS_RECV(wc.wr_id)) {
+				ib_destroy_ah(tun_qp->tx_ring[wc.wr_id &
+					      (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
+				tun_qp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
+					= NULL;
+				spin_lock(&tun_qp->tx_lock);
+				tun_qp->tx_ix_tail++;
+				spin_unlock(&tun_qp->tx_lock);
+			}
+		}
+	}
+}
+
+static void pv_qp_event_handler(struct ib_event *event, void *qp_context)
+{
+	struct mlx4_ib_demux_pv_ctx *sqp = qp_context;
+
+	/* It's worse than that! He's dead, Jim! */
+	pr_err("Fatal error (%d) on a MAD QP on port %d\n",
+	       event->event, sqp->port);
+}
+
+static int create_pv_sqp(struct mlx4_ib_demux_pv_ctx *ctx,
+			    enum ib_qp_type qp_type, int create_tun)
+{
+	int i, ret;
+	struct mlx4_ib_demux_pv_qp *tun_qp;
+	struct mlx4_ib_qp_tunnel_init_attr qp_init_attr;
+	struct ib_qp_attr attr;
+	int qp_attr_mask_INIT;
+
+	if (qp_type > IB_QPT_GSI)
+		return -EINVAL;
+
+	tun_qp = &ctx->qp[qp_type];
+
+	memset(&qp_init_attr, 0, sizeof qp_init_attr);
+	qp_init_attr.init_attr.send_cq = ctx->cq;
+	qp_init_attr.init_attr.recv_cq = ctx->cq;
+	qp_init_attr.init_attr.sq_sig_type = IB_SIGNAL_ALL_WR;
+	qp_init_attr.init_attr.cap.max_send_wr = MLX4_NUM_TUNNEL_BUFS;
+	qp_init_attr.init_attr.cap.max_recv_wr = MLX4_NUM_TUNNEL_BUFS;
+	qp_init_attr.init_attr.cap.max_send_sge = 1;
+	qp_init_attr.init_attr.cap.max_recv_sge = 1;
+	if (create_tun) {
+		qp_init_attr.init_attr.qp_type = IB_QPT_UD;
+		qp_init_attr.init_attr.create_flags = MLX4_IB_SRIOV_TUNNEL_QP;
+		qp_init_attr.port = ctx->port;
+		qp_init_attr.slave = ctx->slave;
+		qp_init_attr.proxy_qp_type = qp_type;
+		qp_attr_mask_INIT = IB_QP_STATE | IB_QP_PKEY_INDEX |
+			   IB_QP_QKEY | IB_QP_PORT;
+	} else {
+		qp_init_attr.init_attr.qp_type = qp_type;
+		qp_init_attr.init_attr.create_flags = MLX4_IB_SRIOV_SQP;
+		qp_attr_mask_INIT = IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_QKEY;
+	}
+	qp_init_attr.init_attr.port_num = ctx->port;
+	qp_init_attr.init_attr.qp_context = ctx;
+	qp_init_attr.init_attr.event_handler = pv_qp_event_handler;
+	tun_qp->qp = ib_create_qp(ctx->pd, &qp_init_attr.init_attr);
+	if (IS_ERR(tun_qp->qp)) {
+		ret = PTR_ERR(tun_qp->qp);
+		tun_qp->qp = NULL;
+		pr_err("Couldn't create %s QP (%d)\n",
+		       create_tun ? "tunnel" : "special", ret);
+		return ret;
+	}
+
+	memset(&attr, 0, sizeof attr);
+	attr.qp_state = IB_QPS_INIT;
+	attr.pkey_index =
+		to_mdev(ctx->ib_dev)->pkeys.virt2phys_pkey[ctx->slave][ctx->port - 1][0];
+	attr.qkey = IB_QP1_QKEY;
+	attr.port_num = ctx->port;
+	ret = ib_modify_qp(tun_qp->qp, &attr, qp_attr_mask_INIT);
+	if (ret) {
+		pr_err("Couldn't change %s qp state to INIT (%d)\n",
+		       create_tun ? "tunnel" : "special", ret);
+		goto err_qp;
+	}
+	attr.qp_state = IB_QPS_RTR;
+	ret = ib_modify_qp(tun_qp->qp, &attr, IB_QP_STATE);
+	if (ret) {
+		pr_err("Couldn't change %s qp state to RTR (%d)\n",
+		       create_tun ? "tunnel" : "special", ret);
+		goto err_qp;
+	}
+	attr.qp_state = IB_QPS_RTS;
+	attr.sq_psn = 0;
+	ret = ib_modify_qp(tun_qp->qp, &attr, IB_QP_STATE | IB_QP_SQ_PSN);
+	if (ret) {
+		pr_err("Couldn't change %s qp state to RTS (%d)\n",
+		       create_tun ? "tunnel" : "special", ret);
+		goto err_qp;
+	}
+
+	for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+		ret = mlx4_ib_post_pv_qp_buf(ctx, tun_qp, i);
+		if (ret) {
+			pr_err(" mlx4_ib_post_pv_buf error"
+			       " (err = %d, i = %d)\n", ret, i);
+			goto err_qp;
+		}
+	}
+	return 0;
+
+err_qp:
+	ib_destroy_qp(tun_qp->qp);
+	tun_qp->qp = NULL;
+	return ret;
+}
+
+/*
+ * IB MAD completion callback for real SQPs
+ */
+static void mlx4_ib_sqp_comp_worker(struct work_struct *work)
+{
+	struct mlx4_ib_demux_pv_ctx *ctx;
+	struct mlx4_ib_demux_pv_qp *sqp;
+	struct ib_wc wc;
+	struct ib_grh *grh;
+	struct ib_mad *mad;
+
+	ctx = container_of(work, struct mlx4_ib_demux_pv_ctx, work);
+	ib_req_notify_cq(ctx->cq, IB_CQ_NEXT_COMP);
+
+	while (mlx4_ib_poll_cq(ctx->cq, 1, &wc) == 1) {
+		sqp = &ctx->qp[MLX4_TUN_WRID_QPN(wc.wr_id)];
+		if (wc.status == IB_WC_SUCCESS) {
+			switch (wc.opcode) {
+			case IB_WC_SEND:
+				ib_destroy_ah(sqp->tx_ring[wc.wr_id &
+					      (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
+				sqp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
+					= NULL;
+				spin_lock(&sqp->tx_lock);
+				sqp->tx_ix_tail++;
+				spin_unlock(&sqp->tx_lock);
+				break;
+			case IB_WC_RECV:
+				mad = (struct ib_mad *) &(((struct mlx4_mad_rcv_buf *)
+						(sqp->ring[wc.wr_id &
+						(MLX4_NUM_TUNNEL_BUFS - 1)].addr))->payload);
+				grh = &(((struct mlx4_mad_rcv_buf *)
+						(sqp->ring[wc.wr_id &
+						(MLX4_NUM_TUNNEL_BUFS - 1)].addr))->grh);
+				mlx4_ib_demux_mad(ctx->ib_dev, ctx->port, &wc, grh, mad);
+				if (mlx4_ib_post_pv_qp_buf(ctx, sqp, wc.wr_id &
+							   (MLX4_NUM_TUNNEL_BUFS - 1)))
+					pr_err("Failed reposting SQP "
+					       "buf:%lld\n", wc.wr_id);
+				break;
+			default:
+				BUG_ON(1);
+				break;
+			}
+		} else  {
+			pr_debug("mlx4_ib: completion error in tunnel: %d."
+				 " status = %d, wrid = 0x%llx\n",
+				 ctx->slave, wc.status, wc.wr_id);
+			if (!MLX4_TUN_IS_RECV(wc.wr_id)) {
+				ib_destroy_ah(sqp->tx_ring[wc.wr_id &
+					      (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
+				sqp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
+					= NULL;
+				spin_lock(&sqp->tx_lock);
+				sqp->tx_ix_tail++;
+				spin_unlock(&sqp->tx_lock);
+			}
+		}
+	}
+}
+
+static int alloc_pv_object(struct mlx4_ib_dev *dev, int slave, int port,
+			       struct mlx4_ib_demux_pv_ctx **ret_ctx)
+{
+	struct mlx4_ib_demux_pv_ctx *ctx;
+
+	*ret_ctx = NULL;
+	ctx = kzalloc(sizeof (struct mlx4_ib_demux_pv_ctx), GFP_KERNEL);
+	if (!ctx) {
+		pr_err("failed allocating pv resource context "
+		       "for port %d, slave %d\n", port, slave);
+		return -ENOMEM;
+	}
+
+	ctx->ib_dev = &dev->ib_dev;
+	ctx->port = port;
+	ctx->slave = slave;
+	*ret_ctx = ctx;
+	return 0;
+}
+
+static void free_pv_object(struct mlx4_ib_dev *dev, int slave, int port)
+{
+	if (dev->sriov.demux[port - 1].tun[slave]) {
+		kfree(dev->sriov.demux[port - 1].tun[slave]);
+		dev->sriov.demux[port - 1].tun[slave] = NULL;
+	}
+}
+
+static int create_pv_resources(struct ib_device *ibdev, int slave, int port,
+			       int create_tun, struct mlx4_ib_demux_pv_ctx *ctx)
+{
+	int ret, cq_size;
+
+	if (ctx->state != DEMUX_PV_STATE_DOWN)
+		return -EEXIST;
+
+	ctx->state = DEMUX_PV_STATE_STARTING;
+	/* have QP0 only on port owner, and only if link layer is IB */
+	if (ctx->slave == mlx4_master_func_num(to_mdev(ctx->ib_dev)->dev) &&
+	    rdma_port_get_link_layer(ibdev, ctx->port) == IB_LINK_LAYER_INFINIBAND)
+		ctx->has_smi = 1;
+
+	if (ctx->has_smi) {
+		ret = mlx4_ib_alloc_pv_bufs(ctx, IB_QPT_SMI, create_tun);
+		if (ret) {
+			pr_err("Failed allocating qp0 tunnel bufs (%d)\n", ret);
+			goto err_out;
+		}
+	}
+
+	ret = mlx4_ib_alloc_pv_bufs(ctx, IB_QPT_GSI, create_tun);
+	if (ret) {
+		pr_err("Failed allocating qp1 tunnel bufs (%d)\n", ret);
+		goto err_out_qp0;
+	}
+
+	cq_size = 2 * MLX4_NUM_TUNNEL_BUFS;
+	if (ctx->has_smi)
+		cq_size *= 2;
+
+	ctx->cq = ib_create_cq(ctx->ib_dev, mlx4_ib_tunnel_comp_handler,
+			       NULL, ctx, cq_size, 0);
+	if (IS_ERR(ctx->cq)) {
+		ret = PTR_ERR(ctx->cq);
+		pr_err("Couldn't create tunnel CQ (%d)\n", ret);
+		goto err_buf;
+	}
+
+	ctx->pd = ib_alloc_pd(ctx->ib_dev);
+	if (IS_ERR(ctx->pd)) {
+		ret = PTR_ERR(ctx->pd);
+		pr_err("Couldn't create tunnel PD (%d)\n", ret);
+		goto err_cq;
+	}
+
+	ctx->mr = ib_get_dma_mr(ctx->pd, IB_ACCESS_LOCAL_WRITE);
+	if (IS_ERR(ctx->mr)) {
+		ret = PTR_ERR(ctx->mr);
+		pr_err("Couldn't get tunnel DMA MR (%d)\n", ret);
+		goto err_pd;
+	}
+
+	if (ctx->has_smi) {
+		ret = create_pv_sqp(ctx, IB_QPT_SMI, create_tun);
+		if (ret) {
+			pr_err("Couldn't create %s QP0 (%d)\n",
+			       create_tun ? "tunnel for" : "",  ret);
+			goto err_mr;
+		}
+	}
+
+	ret = create_pv_sqp(ctx, IB_QPT_GSI, create_tun);
+	if (ret) {
+		pr_err("Couldn't create %s QP1 (%d)\n",
+		       create_tun ? "tunnel for" : "",  ret);
+		goto err_qp0;
+	}
+
+	if (create_tun)
+		INIT_WORK(&ctx->work, mlx4_ib_tunnel_comp_worker);
+	else
+		INIT_WORK(&ctx->work, mlx4_ib_sqp_comp_worker);
+
+	ctx->wq = to_mdev(ibdev)->sriov.demux[port - 1].wq;
+
+	ret = ib_req_notify_cq(ctx->cq, IB_CQ_NEXT_COMP);
+	if (ret) {
+		pr_err("Couldn't arm tunnel cq (%d)\n", ret);
+		goto err_wq;
+	}
+	ctx->state = DEMUX_PV_STATE_ACTIVE;
+	return 0;
+
+err_wq:
+	ctx->wq = NULL;
+	ib_destroy_qp(ctx->qp[1].qp);
+	ctx->qp[1].qp = NULL;
+
+
+err_qp0:
+	if (ctx->has_smi)
+		ib_destroy_qp(ctx->qp[0].qp);
+	ctx->qp[0].qp = NULL;
+
+err_mr:
+	ib_dereg_mr(ctx->mr);
+	ctx->mr = NULL;
+
+err_pd:
+	ib_dealloc_pd(ctx->pd);
+	ctx->pd = NULL;
+
+err_cq:
+	ib_destroy_cq(ctx->cq);
+	ctx->cq = NULL;
+
+err_buf:
+	mlx4_ib_free_pv_qp_bufs(ctx, IB_QPT_GSI, create_tun);
+
+err_out_qp0:
+	if (ctx->has_smi)
+		mlx4_ib_free_pv_qp_bufs(ctx, IB_QPT_SMI, create_tun);
+err_out:
+	ctx->state = DEMUX_PV_STATE_DOWN;
+	return ret;
+}
+
+static void destroy_pv_resources(struct mlx4_ib_dev *dev, int slave, int port,
+				 struct mlx4_ib_demux_pv_ctx *ctx, int flush)
+{
+	if (!ctx)
+		return;
+	if (ctx->state > DEMUX_PV_STATE_DOWN) {
+		ctx->state = DEMUX_PV_STATE_DOWNING;
+		if (flush)
+			flush_workqueue(ctx->wq);
+		if (ctx->has_smi) {
+			ib_destroy_qp(ctx->qp[0].qp);
+			ctx->qp[0].qp = NULL;
+			mlx4_ib_free_pv_qp_bufs(ctx, IB_QPT_SMI, 1);
+		}
+		ib_destroy_qp(ctx->qp[1].qp);
+		ctx->qp[1].qp = NULL;
+		mlx4_ib_free_pv_qp_bufs(ctx, IB_QPT_GSI, 1);
+		ib_dereg_mr(ctx->mr);
+		ctx->mr = NULL;
+		ib_dealloc_pd(ctx->pd);
+		ctx->pd = NULL;
+		ib_destroy_cq(ctx->cq);
+		ctx->cq = NULL;
+		ctx->state = DEMUX_PV_STATE_DOWN;
+	}
+}
+
+static int mlx4_ib_tunnels_update(struct mlx4_ib_dev *dev, int slave,
+				  int port, int do_init)
+{
+	int ret = 0;
+
+	if (!do_init) {
+		clean_vf_mcast(&dev->sriov.demux[port - 1], slave);
+		/* for master, destroy real sqp resources */
+		if (slave == mlx4_master_func_num(dev->dev))
+			destroy_pv_resources(dev, slave, port,
+					     dev->sriov.sqps[port - 1], 1);
+		/* destroy the tunnel qp resources */
+		destroy_pv_resources(dev, slave, port,
+				     dev->sriov.demux[port - 1].tun[slave], 1);
+		return 0;
+	}
+
+	/* create the tunnel qp resources */
+	ret = create_pv_resources(&dev->ib_dev, slave, port, 1,
+				  dev->sriov.demux[port - 1].tun[slave]);
+
+	/* for master, create the real sqp resources */
+	if (!ret && slave == mlx4_master_func_num(dev->dev))
+		ret = create_pv_resources(&dev->ib_dev, slave, port, 0,
+					  dev->sriov.sqps[port - 1]);
+	return ret;
+}
+
+void mlx4_ib_tunnels_update_work(struct work_struct *work)
+{
+	struct mlx4_ib_demux_work *dmxw;
+
+	dmxw = container_of(work, struct mlx4_ib_demux_work, work);
+	mlx4_ib_tunnels_update(dmxw->dev, dmxw->slave, (int) dmxw->port,
+			       dmxw->do_init);
+	kfree(dmxw);
+	return;
+}
+
+static int mlx4_ib_alloc_demux_ctx(struct mlx4_ib_dev *dev,
+				       struct mlx4_ib_demux_ctx *ctx,
+				       int port)
+{
+	char name[12];
+	int ret = 0;
+	int i;
+
+	ctx->tun = kcalloc(dev->dev->caps.sqp_demux,
+			   sizeof (struct mlx4_ib_demux_pv_ctx *), GFP_KERNEL);
+	if (!ctx->tun)
+		return -ENOMEM;
+
+	ctx->dev = dev;
+	ctx->port = port;
+	ctx->ib_dev = &dev->ib_dev;
+
+	for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
+		ret = alloc_pv_object(dev, i, port, &ctx->tun[i]);
+		if (ret) {
+			ret = -ENOMEM;
+			goto err_mcg;
+		}
+	}
+
+	ret = mlx4_ib_mcg_port_init(ctx);
+	if (ret) {
+		pr_err("Failed initializing mcg para-virt (%d)\n", ret);
+		goto err_mcg;
+	}
+
+	snprintf(name, sizeof name, "mlx4_ibt%d", port);
+	ctx->wq = create_singlethread_workqueue(name);
+	if (!ctx->wq) {
+		pr_err("Failed to create tunnelling WQ for port %d\n", port);
+		ret = -ENOMEM;
+		goto err_wq;
+	}
+
+	snprintf(name, sizeof name, "mlx4_ibud%d", port);
+	ctx->ud_wq = create_singlethread_workqueue(name);
+	if (!ctx->ud_wq) {
+		pr_err("Failed to create up/down WQ for port %d\n", port);
+		ret = -ENOMEM;
+		goto err_udwq;
+	}
+
+	return 0;
+
+err_udwq:
+	destroy_workqueue(ctx->wq);
+	ctx->wq = NULL;
+
+err_wq:
+	mlx4_ib_mcg_port_cleanup(ctx, 1);
+err_mcg:
+	for (i = 0; i < dev->dev->caps.sqp_demux; i++)
+		free_pv_object(dev, i, port);
+	kfree(ctx->tun);
+	ctx->tun = NULL;
+	return ret;
+}
+
+static void mlx4_ib_free_sqp_ctx(struct mlx4_ib_demux_pv_ctx *sqp_ctx)
+{
+	if (sqp_ctx->state > DEMUX_PV_STATE_DOWN) {
+		sqp_ctx->state = DEMUX_PV_STATE_DOWNING;
+		flush_workqueue(sqp_ctx->wq);
+		if (sqp_ctx->has_smi) {
+			ib_destroy_qp(sqp_ctx->qp[0].qp);
+			sqp_ctx->qp[0].qp = NULL;
+			mlx4_ib_free_pv_qp_bufs(sqp_ctx, IB_QPT_SMI, 0);
+		}
+		ib_destroy_qp(sqp_ctx->qp[1].qp);
+		sqp_ctx->qp[1].qp = NULL;
+		mlx4_ib_free_pv_qp_bufs(sqp_ctx, IB_QPT_GSI, 0);
+		ib_dereg_mr(sqp_ctx->mr);
+		sqp_ctx->mr = NULL;
+		ib_dealloc_pd(sqp_ctx->pd);
+		sqp_ctx->pd = NULL;
+		ib_destroy_cq(sqp_ctx->cq);
+		sqp_ctx->cq = NULL;
+		sqp_ctx->state = DEMUX_PV_STATE_DOWN;
+	}
+}
+
+static void mlx4_ib_free_demux_ctx(struct mlx4_ib_demux_ctx *ctx)
+{
+	int i;
+	if (ctx) {
+		struct mlx4_ib_dev *dev = to_mdev(ctx->ib_dev);
+		mlx4_ib_mcg_port_cleanup(ctx, 1);
+		for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
+			if (!ctx->tun[i])
+				continue;
+			if (ctx->tun[i]->state > DEMUX_PV_STATE_DOWN)
+				ctx->tun[i]->state = DEMUX_PV_STATE_DOWNING;
+		}
+		flush_workqueue(ctx->wq);
+		for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
+			destroy_pv_resources(dev, i, ctx->port, ctx->tun[i], 0);
+			free_pv_object(dev, i, ctx->port);
+		}
+		kfree(ctx->tun);
+		destroy_workqueue(ctx->ud_wq);
+		destroy_workqueue(ctx->wq);
+	}
+}
+
+static void mlx4_ib_master_tunnels(struct mlx4_ib_dev *dev, int do_init)
+{
+	int i;
+
+	if (!mlx4_is_master(dev->dev))
+		return;
+	/* initialize or tear down tunnel QPs for the master */
+	for (i = 0; i < dev->dev->caps.num_ports; i++)
+		mlx4_ib_tunnels_update(dev, mlx4_master_func_num(dev->dev), i + 1, do_init);
+	return;
+}
+
+int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev)
+{
+	int i = 0;
+	int err;
+
+	if (!mlx4_is_mfunc(dev->dev))
+		return 0;
+
+	dev->sriov.is_going_down = 0;
+	spin_lock_init(&dev->sriov.going_down_lock);
+	mlx4_ib_cm_paravirt_init(dev);
+
+	mlx4_ib_warn(&dev->ib_dev, "multi-function enabled\n");
+
+	if (mlx4_is_slave(dev->dev)) {
+		mlx4_ib_warn(&dev->ib_dev, "operating in qp1 tunnel mode\n");
+		return 0;
+	}
+
+	for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
+		if (i == mlx4_master_func_num(dev->dev))
+			mlx4_put_slave_node_guid(dev->dev, i, dev->ib_dev.node_guid);
+		else
+			mlx4_put_slave_node_guid(dev->dev, i, mlx4_ib_gen_node_guid());
+	}
+
+	err = mlx4_ib_init_alias_guid_service(dev);
+	if (err) {
+		mlx4_ib_warn(&dev->ib_dev, "Failed init alias guid process.\n");
+		goto paravirt_err;
+	}
+	err = mlx4_ib_device_register_sysfs(dev);
+	if (err) {
+		mlx4_ib_warn(&dev->ib_dev, "Failed to register sysfs\n");
+		goto sysfs_err;
+	}
+
+	mlx4_ib_warn(&dev->ib_dev, "initializing demux service for %d qp1 clients\n",
+		     dev->dev->caps.sqp_demux);
+	for (i = 0; i < dev->num_ports; i++) {
+		union ib_gid gid;
+		err = __mlx4_ib_query_gid(&dev->ib_dev, i + 1, 0, &gid, 1);
+		if (err)
+			goto demux_err;
+		dev->sriov.demux[i].guid_cache[0] = gid.global.interface_id;
+		err = alloc_pv_object(dev, mlx4_master_func_num(dev->dev), i + 1,
+				      &dev->sriov.sqps[i]);
+		if (err)
+			goto demux_err;
+		err = mlx4_ib_alloc_demux_ctx(dev, &dev->sriov.demux[i], i + 1);
+		if (err)
+			goto demux_err;
+	}
+	mlx4_ib_master_tunnels(dev, 1);
+	return 0;
+
+demux_err:
+	while (i > 0) {
+		free_pv_object(dev, mlx4_master_func_num(dev->dev), i + 1);
+		mlx4_ib_free_demux_ctx(&dev->sriov.demux[i]);
+		--i;
+	}
+	mlx4_ib_device_unregister_sysfs(dev);
+
+sysfs_err:
+	mlx4_ib_destroy_alias_guid_service(dev);
+
+paravirt_err:
+	mlx4_ib_cm_paravirt_clean(dev, -1);
+
+	return err;
+}
+
+void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev)
+{
+	int i;
+	unsigned long flags;
+
+	if (!mlx4_is_mfunc(dev->dev))
+		return;
+
+	spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+	dev->sriov.is_going_down = 1;
+	spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+	if (mlx4_is_master(dev->dev)) {
+		for (i = 0; i < dev->num_ports; i++) {
+			flush_workqueue(dev->sriov.demux[i].ud_wq);
+			mlx4_ib_free_sqp_ctx(dev->sriov.sqps[i]);
+			kfree(dev->sriov.sqps[i]);
+			dev->sriov.sqps[i] = NULL;
+			mlx4_ib_free_demux_ctx(&dev->sriov.demux[i]);
+		}
+
+		mlx4_ib_cm_paravirt_clean(dev, -1);
+		mlx4_ib_destroy_alias_guid_service(dev);
+		mlx4_ib_device_unregister_sysfs(dev);
+	}
+}
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index fe2088cfa6e..718ec6b2bad 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -59,6 +59,10 @@ MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(DRV_VERSION);
 
+int mlx4_ib_sm_guid_assign = 1;
+module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
+MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)");
+
 static const char mlx4_ib_version[] =
 	DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
 	DRV_VERSION " (" DRV_RELDATE ")\n";
@@ -70,6 +74,8 @@ struct update_gid_work {
 	int			port;
 };
 
+static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
+
 static struct workqueue_struct *wq;
 
 static void init_query_mad(struct ib_smp *mad)
@@ -98,7 +104,8 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
 	init_query_mad(in_mad);
 	in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 
-	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad);
+	err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
+			   1, NULL, NULL, in_mad, out_mad);
 	if (err)
 		goto out;
 
@@ -133,7 +140,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
 
 	props->vendor_id	   = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
 		0xffffff;
-	props->vendor_part_id	   = be16_to_cpup((__be16 *) (out_mad->data + 30));
+	props->vendor_part_id	   = dev->dev->pdev->device;
 	props->hw_ver		   = be32_to_cpup((__be32 *) (out_mad->data + 32));
 	memcpy(&props->sys_image_guid, out_mad->data +	4, 8);
 
@@ -182,11 +189,12 @@ mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
 }
 
 static int ib_link_query_port(struct ib_device *ibdev, u8 port,
-			      struct ib_port_attr *props)
+			      struct ib_port_attr *props, int netw_view)
 {
 	struct ib_smp *in_mad  = NULL;
 	struct ib_smp *out_mad = NULL;
 	int ext_active_speed;
+	int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 	int err = -ENOMEM;
 
 	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
@@ -198,7 +206,10 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 	in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 	in_mad->attr_mod = cpu_to_be32(port);
 
-	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL,
+	if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
+		mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
+
+	err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 				in_mad, out_mad);
 	if (err)
 		goto out;
@@ -211,7 +222,10 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 	props->state		= out_mad->data[32] & 0xf;
 	props->phys_state	= out_mad->data[33] >> 4;
 	props->port_cap_flags	= be32_to_cpup((__be32 *) (out_mad->data + 20));
-	props->gid_tbl_len	= to_mdev(ibdev)->dev->caps.gid_table_len[port];
+	if (netw_view)
+		props->gid_tbl_len = out_mad->data[50];
+	else
+		props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
 	props->max_msg_sz	= to_mdev(ibdev)->dev->caps.max_msg_sz;
 	props->pkey_tbl_len	= to_mdev(ibdev)->dev->caps.pkey_table_len[port];
 	props->bad_pkey_cntr	= be16_to_cpup((__be16 *) (out_mad->data + 46));
@@ -244,7 +258,7 @@ static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 		in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
 		in_mad->attr_mod = cpu_to_be32(port);
 
-		err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port,
+		err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
 				   NULL, NULL, in_mad, out_mad);
 		if (err)
 			goto out;
@@ -270,7 +284,7 @@ static u8 state_to_phys_state(enum ib_port_state state)
 }
 
 static int eth_link_query_port(struct ib_device *ibdev, u8 port,
-			       struct ib_port_attr *props)
+			       struct ib_port_attr *props, int netw_view)
 {
 
 	struct mlx4_ib_dev *mdev = to_mdev(ibdev);
@@ -320,26 +334,36 @@ out:
 	return err;
 }
 
-static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
-			      struct ib_port_attr *props)
+int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
+			 struct ib_port_attr *props, int netw_view)
 {
 	int err;
 
 	memset(props, 0, sizeof *props);
 
 	err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
-		ib_link_query_port(ibdev, port, props) :
-				eth_link_query_port(ibdev, port, props);
+		ib_link_query_port(ibdev, port, props, netw_view) :
+				eth_link_query_port(ibdev, port, props, netw_view);
 
 	return err;
 }
 
-static int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
-			       union ib_gid *gid)
+static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
+			      struct ib_port_attr *props)
+{
+	/* returns host view */
+	return __mlx4_ib_query_port(ibdev, port, props, 0);
+}
+
+int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
+			union ib_gid *gid, int netw_view)
 {
 	struct ib_smp *in_mad  = NULL;
 	struct ib_smp *out_mad = NULL;
 	int err = -ENOMEM;
+	struct mlx4_ib_dev *dev = to_mdev(ibdev);
+	int clear = 0;
+	int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 
 	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
@@ -350,23 +374,38 @@ static int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 	in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 	in_mad->attr_mod = cpu_to_be32(port);
 
-	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+	if (mlx4_is_mfunc(dev->dev) && netw_view)
+		mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
+
+	err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
 	if (err)
 		goto out;
 
 	memcpy(gid->raw, out_mad->data + 8, 8);
 
+	if (mlx4_is_mfunc(dev->dev) && !netw_view) {
+		if (index) {
+			/* For any index > 0, return the null guid */
+			err = 0;
+			clear = 1;
+			goto out;
+		}
+	}
+
 	init_query_mad(in_mad);
 	in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
 	in_mad->attr_mod = cpu_to_be32(index / 8);
 
-	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+	err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
+			   NULL, NULL, in_mad, out_mad);
 	if (err)
 		goto out;
 
 	memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
 
 out:
+	if (clear)
+		memset(gid->raw + 8, 0, 8);
 	kfree(in_mad);
 	kfree(out_mad);
 	return err;
@@ -386,16 +425,17 @@ static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 			     union ib_gid *gid)
 {
 	if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
-		return __mlx4_ib_query_gid(ibdev, port, index, gid);
+		return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
 	else
 		return iboe_query_gid(ibdev, port, index, gid);
 }
 
-static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
-			      u16 *pkey)
+int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
+			 u16 *pkey, int netw_view)
 {
 	struct ib_smp *in_mad  = NULL;
 	struct ib_smp *out_mad = NULL;
+	int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 	int err = -ENOMEM;
 
 	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
@@ -407,7 +447,11 @@ static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 	in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
 	in_mad->attr_mod = cpu_to_be32(index / 32);
 
-	err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+	if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
+		mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
+
+	err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
+			   in_mad, out_mad);
 	if (err)
 		goto out;
 
@@ -419,10 +463,16 @@ out:
 	return err;
 }
 
+static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
+{
+	return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
+}
+
 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 				 struct ib_device_modify *props)
 {
 	struct mlx4_cmd_mailbox *mailbox;
+	unsigned long flags;
 
 	if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
 		return -EOPNOTSUPP;
@@ -430,9 +480,12 @@ static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 	if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
 		return 0;
 
-	spin_lock(&to_mdev(ibdev)->sm_lock);
+	if (mlx4_is_slave(to_mdev(ibdev)->dev))
+		return -EOPNOTSUPP;
+
+	spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
 	memcpy(ibdev->node_desc, props->node_desc, 64);
-	spin_unlock(&to_mdev(ibdev)->sm_lock);
+	spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
 
 	/*
 	 * If possible, pass node desc to FW, so it can generate
@@ -445,7 +498,7 @@ static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 	memset(mailbox->buf, 0, 256);
 	memcpy(mailbox->buf, props->node_desc, 64);
 	mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
-		 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+		 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
 
 	mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
 
@@ -848,6 +901,7 @@ static int init_node_data(struct mlx4_ib_dev *dev)
 {
 	struct ib_smp *in_mad  = NULL;
 	struct ib_smp *out_mad = NULL;
+	int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 	int err = -ENOMEM;
 
 	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
@@ -857,8 +911,10 @@ static int init_node_data(struct mlx4_ib_dev *dev)
 
 	init_query_mad(in_mad);
 	in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
+	if (mlx4_is_master(dev->dev))
+		mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 
-	err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
+	err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
 	if (err)
 		goto out;
 
@@ -866,10 +922,11 @@ static int init_node_data(struct mlx4_ib_dev *dev)
 
 	in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 
-	err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
+	err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
 	if (err)
 		goto out;
 
+	dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
 	memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
 
 out:
@@ -958,7 +1015,7 @@ static void update_gids_task(struct work_struct *work)
 
 	err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
 		       1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
-		       MLX4_CMD_NATIVE);
+		       MLX4_CMD_WRAPPED);
 	if (err)
 		pr_warn("set port command failed\n");
 	else {
@@ -1120,6 +1177,38 @@ static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event
 	return NOTIFY_DONE;
 }
 
+static void init_pkeys(struct mlx4_ib_dev *ibdev)
+{
+	int port;
+	int slave;
+	int i;
+
+	if (mlx4_is_master(ibdev->dev)) {
+		for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) {
+			for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
+				for (i = 0;
+				     i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
+				     ++i) {
+					ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
+					/* master has the identity virt2phys pkey mapping */
+						(slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
+							ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
+					mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
+							     ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
+				}
+			}
+		}
+		/* initialize pkey cache */
+		for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
+			for (i = 0;
+			     i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
+			     ++i)
+				ibdev->pkeys.phys_pkey_cache[port-1][i] =
+					(i) ? 0 : 0xFFFF;
+		}
+	}
+}
+
 static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
 {
 	char name[32];
@@ -1206,11 +1295,15 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 
 	pr_info_once("%s", mlx4_ib_version);
 
-	if (mlx4_is_mfunc(dev)) {
-		pr_warn("IB not yet supported in SRIOV\n");
+	mlx4_foreach_non_ib_transport_port(i, dev)
+		num_ports++;
+
+	if (mlx4_is_mfunc(dev) && num_ports) {
+		dev_err(&dev->pdev->dev, "RoCE is not supported over SRIOV as yet\n");
 		return NULL;
 	}
 
+	num_ports = 0;
 	mlx4_foreach_ib_transport_port(i, dev)
 		num_ports++;
 
@@ -1317,10 +1410,12 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 	ibdev->ib_dev.detach_mcast	= mlx4_ib_mcg_detach;
 	ibdev->ib_dev.process_mad	= mlx4_ib_process_mad;
 
-	ibdev->ib_dev.alloc_fmr		= mlx4_ib_fmr_alloc;
-	ibdev->ib_dev.map_phys_fmr	= mlx4_ib_map_phys_fmr;
-	ibdev->ib_dev.unmap_fmr		= mlx4_ib_unmap_fmr;
-	ibdev->ib_dev.dealloc_fmr	= mlx4_ib_fmr_dealloc;
+	if (!mlx4_is_slave(ibdev->dev)) {
+		ibdev->ib_dev.alloc_fmr		= mlx4_ib_fmr_alloc;
+		ibdev->ib_dev.map_phys_fmr	= mlx4_ib_map_phys_fmr;
+		ibdev->ib_dev.unmap_fmr		= mlx4_ib_unmap_fmr;
+		ibdev->ib_dev.dealloc_fmr	= mlx4_ib_fmr_dealloc;
+	}
 
 	if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
 		ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
@@ -1356,11 +1451,14 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 	if (mlx4_ib_mad_init(ibdev))
 		goto err_reg;
 
+	if (mlx4_ib_init_sriov(ibdev))
+		goto err_mad;
+
 	if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) {
 		iboe->nb.notifier_call = mlx4_ib_netdev_event;
 		err = register_netdevice_notifier(&iboe->nb);
 		if (err)
-			goto err_reg;
+			goto err_sriov;
 	}
 
 	for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
@@ -1371,6 +1469,18 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 
 	ibdev->ib_active = true;
 
+	if (mlx4_is_mfunc(ibdev->dev))
+		init_pkeys(ibdev);
+
+	/* create paravirt contexts for any VFs which are active */
+	if (mlx4_is_master(ibdev->dev)) {
+		for (j = 0; j < MLX4_MFUNC_MAX; j++) {
+			if (j == mlx4_master_func_num(ibdev->dev))
+				continue;
+			if (mlx4_is_slave_active(ibdev->dev, j))
+				do_slave_init(ibdev, j, 1);
+		}
+	}
 	return ibdev;
 
 err_notif:
@@ -1378,6 +1488,12 @@ err_notif:
 		pr_warn("failure unregistering notifier\n");
 	flush_workqueue(wq);
 
+err_sriov:
+	mlx4_ib_close_sriov(ibdev);
+
+err_mad:
+	mlx4_ib_mad_cleanup(ibdev);
+
 err_reg:
 	ib_unregister_device(&ibdev->ib_dev);
 
@@ -1406,6 +1522,7 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
 	struct mlx4_ib_dev *ibdev = ibdev_ptr;
 	int p;
 
+	mlx4_ib_close_sriov(ibdev);
 	mlx4_ib_mad_cleanup(ibdev);
 	ib_unregister_device(&ibdev->ib_dev);
 	if (ibdev->iboe.nb.notifier_call) {
@@ -1427,6 +1544,51 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
 	ib_dealloc_device(&ibdev->ib_dev);
 }
 
+static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
+{
+	struct mlx4_ib_demux_work **dm = NULL;
+	struct mlx4_dev *dev = ibdev->dev;
+	int i;
+	unsigned long flags;
+
+	if (!mlx4_is_master(dev))
+		return;
+
+	dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC);
+	if (!dm) {
+		pr_err("failed to allocate memory for tunneling qp update\n");
+		goto out;
+	}
+
+	for (i = 0; i < dev->caps.num_ports; i++) {
+		dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
+		if (!dm[i]) {
+			pr_err("failed to allocate memory for tunneling qp update work struct\n");
+			for (i = 0; i < dev->caps.num_ports; i++) {
+				if (dm[i])
+					kfree(dm[i]);
+			}
+			goto out;
+		}
+	}
+	/* initialize or tear down tunnel QPs for the slave */
+	for (i = 0; i < dev->caps.num_ports; i++) {
+		INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
+		dm[i]->port = i + 1;
+		dm[i]->slave = slave;
+		dm[i]->do_init = do_init;
+		dm[i]->dev = ibdev;
+		spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
+		if (!ibdev->sriov.is_going_down)
+			queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
+		spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
+	}
+out:
+	if (dm)
+		kfree(dm);
+	return;
+}
+
 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
 			  enum mlx4_dev_event event, unsigned long param)
 {
@@ -1434,22 +1596,28 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
 	struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
 	struct mlx4_eqe *eqe = NULL;
 	struct ib_event_work *ew;
-	int port = 0;
+	int p = 0;
 
 	if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
 		eqe = (struct mlx4_eqe *)param;
 	else
-		port = (u8)param;
-
-	if (port > ibdev->num_ports)
-		return;
+		p = (int) param;
 
 	switch (event) {
 	case MLX4_DEV_EVENT_PORT_UP:
+		if (p > ibdev->num_ports)
+			return;
+		if (mlx4_is_master(dev) &&
+		    rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
+			IB_LINK_LAYER_INFINIBAND) {
+			mlx4_ib_invalidate_all_guid_record(ibdev, p);
+		}
 		ibev.event = IB_EVENT_PORT_ACTIVE;
 		break;
 
 	case MLX4_DEV_EVENT_PORT_DOWN:
+		if (p > ibdev->num_ports)
+			return;
 		ibev.event = IB_EVENT_PORT_ERR;
 		break;
 
@@ -1468,7 +1636,21 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
 		INIT_WORK(&ew->work, handle_port_mgmt_change_event);
 		memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
 		ew->ib_dev = ibdev;
-		handle_port_mgmt_change_event(&ew->work);
+		/* need to queue only for port owner, which uses GEN_EQE */
+		if (mlx4_is_master(dev))
+			queue_work(wq, &ew->work);
+		else
+			handle_port_mgmt_change_event(&ew->work);
+		return;
+
+	case MLX4_DEV_EVENT_SLAVE_INIT:
+		/* here, p is the slave id */
+		do_slave_init(ibdev, p, 1);
+		return;
+
+	case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
+		/* here, p is the slave id */
+		do_slave_init(ibdev, p, 0);
 		return;
 
 	default:
@@ -1476,7 +1658,7 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
 	}
 
 	ibev.device	      = ibdev_ptr;
-	ibev.element.port_num = port;
+	ibev.element.port_num = (u8) p;
 
 	ib_dispatch_event(&ibev);
 }
@@ -1496,18 +1678,28 @@ static int __init mlx4_ib_init(void)
 	if (!wq)
 		return -ENOMEM;
 
+	err = mlx4_ib_mcg_init();
+	if (err)
+		goto clean_wq;
+
 	err = mlx4_register_interface(&mlx4_ib_interface);
-	if (err) {
-		destroy_workqueue(wq);
-		return err;
-	}
+	if (err)
+		goto clean_mcg;
 
 	return 0;
+
+clean_mcg:
+	mlx4_ib_mcg_destroy();
+
+clean_wq:
+	destroy_workqueue(wq);
+	return err;
 }
 
 static void __exit mlx4_ib_cleanup(void)
 {
 	mlx4_unregister_interface(&mlx4_ib_interface);
+	mlx4_ib_mcg_destroy();
 	destroy_workqueue(wq);
 }
 
diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
new file mode 100644
index 00000000000..3c3b54c3fdd
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/mcg.c
@@ -0,0 +1,1254 @@
+/*
+ * Copyright (c) 2012 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/ib_mad.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_cache.h>
+#include <rdma/ib_sa.h>
+
+#include <linux/mlx4/cmd.h>
+#include <linux/rbtree.h>
+#include <linux/delay.h>
+
+#include "mlx4_ib.h"
+
+#define MAX_VFS		80
+#define MAX_PEND_REQS_PER_FUNC 4
+#define MAD_TIMEOUT_MS	2000
+
+#define mcg_warn(fmt, arg...)	pr_warn("MCG WARNING: " fmt, ##arg)
+#define mcg_error(fmt, arg...)	pr_err(fmt, ##arg)
+#define mcg_warn_group(group, format, arg...) \
+	pr_warn("%s-%d: %16s (port %d): WARNING: " format, __func__, __LINE__,\
+	(group)->name, group->demux->port, ## arg)
+
+#define mcg_error_group(group, format, arg...) \
+	pr_err("  %16s: " format, (group)->name, ## arg)
+
+
+static union ib_gid mgid0;
+
+static struct workqueue_struct *clean_wq;
+
+enum mcast_state {
+	MCAST_NOT_MEMBER = 0,
+	MCAST_MEMBER,
+};
+
+enum mcast_group_state {
+	MCAST_IDLE,
+	MCAST_JOIN_SENT,
+	MCAST_LEAVE_SENT,
+	MCAST_RESP_READY
+};
+
+struct mcast_member {
+	enum mcast_state state;
+	uint8_t			join_state;
+	int			num_pend_reqs;
+	struct list_head	pending;
+};
+
+struct ib_sa_mcmember_data {
+	union ib_gid	mgid;
+	union ib_gid	port_gid;
+	__be32		qkey;
+	__be16		mlid;
+	u8		mtusel_mtu;
+	u8		tclass;
+	__be16		pkey;
+	u8		ratesel_rate;
+	u8		lifetmsel_lifetm;
+	__be32		sl_flowlabel_hoplimit;
+	u8		scope_join_state;
+	u8		proxy_join;
+	u8		reserved[2];
+};
+
+struct mcast_group {
+	struct ib_sa_mcmember_data rec;
+	struct rb_node		node;
+	struct list_head	mgid0_list;
+	struct mlx4_ib_demux_ctx *demux;
+	struct mcast_member	func[MAX_VFS];
+	struct mutex		lock;
+	struct work_struct	work;
+	struct list_head	pending_list;
+	int			members[3];
+	enum mcast_group_state	state;
+	enum mcast_group_state	prev_state;
+	struct ib_sa_mad	response_sa_mad;
+	__be64			last_req_tid;
+
+	char			name[33]; /* MGID string */
+	struct device_attribute	dentry;
+
+	/* refcount is the reference count for the following:
+	   1. Each queued request
+	   2. Each invocation of the worker thread
+	   3. Membership of the port at the SA
+	*/
+	atomic_t		refcount;
+
+	/* delayed work to clean pending SM request */
+	struct delayed_work	timeout_work;
+	struct list_head	cleanup_list;
+};
+
+struct mcast_req {
+	int			func;
+	struct ib_sa_mad	sa_mad;
+	struct list_head	group_list;
+	struct list_head	func_list;
+	struct mcast_group	*group;
+	int			clean;
+};
+
+
+#define safe_atomic_dec(ref) \
+	do {\
+		if (atomic_dec_and_test(ref)) \
+			mcg_warn_group(group, "did not expect to reach zero\n"); \
+	} while (0)
+
+static const char *get_state_string(enum mcast_group_state state)
+{
+	switch (state) {
+	case MCAST_IDLE:
+		return "MCAST_IDLE";
+	case MCAST_JOIN_SENT:
+		return "MCAST_JOIN_SENT";
+	case MCAST_LEAVE_SENT:
+		return "MCAST_LEAVE_SENT";
+	case MCAST_RESP_READY:
+		return "MCAST_RESP_READY";
+	}
+	return "Invalid State";
+}
+
+static struct mcast_group *mcast_find(struct mlx4_ib_demux_ctx *ctx,
+				      union ib_gid *mgid)
+{
+	struct rb_node *node = ctx->mcg_table.rb_node;
+	struct mcast_group *group;
+	int ret;
+
+	while (node) {
+		group = rb_entry(node, struct mcast_group, node);
+		ret = memcmp(mgid->raw, group->rec.mgid.raw, sizeof *mgid);
+		if (!ret)
+			return group;
+
+		if (ret < 0)
+			node = node->rb_left;
+		else
+			node = node->rb_right;
+	}
+	return NULL;
+}
+
+static struct mcast_group *mcast_insert(struct mlx4_ib_demux_ctx *ctx,
+					struct mcast_group *group)
+{
+	struct rb_node **link = &ctx->mcg_table.rb_node;
+	struct rb_node *parent = NULL;
+	struct mcast_group *cur_group;
+	int ret;
+
+	while (*link) {
+		parent = *link;
+		cur_group = rb_entry(parent, struct mcast_group, node);
+
+		ret = memcmp(group->rec.mgid.raw, cur_group->rec.mgid.raw,
+			     sizeof group->rec.mgid);
+		if (ret < 0)
+			link = &(*link)->rb_left;
+		else if (ret > 0)
+			link = &(*link)->rb_right;
+		else
+			return cur_group;
+	}
+	rb_link_node(&group->node, parent, link);
+	rb_insert_color(&group->node, &ctx->mcg_table);
+	return NULL;
+}
+
+static int send_mad_to_wire(struct mlx4_ib_demux_ctx *ctx, struct ib_mad *mad)
+{
+	struct mlx4_ib_dev *dev = ctx->dev;
+	struct ib_ah_attr	ah_attr;
+
+	spin_lock(&dev->sm_lock);
+	if (!dev->sm_ah[ctx->port - 1]) {
+		/* port is not yet Active, sm_ah not ready */
+		spin_unlock(&dev->sm_lock);
+		return -EAGAIN;
+	}
+	mlx4_ib_query_ah(dev->sm_ah[ctx->port - 1], &ah_attr);
+	spin_unlock(&dev->sm_lock);
+	return mlx4_ib_send_to_wire(dev, mlx4_master_func_num(dev->dev), ctx->port,
+				    IB_QPT_GSI, 0, 1, IB_QP1_QKEY, &ah_attr, mad);
+}
+
+static int send_mad_to_slave(int slave, struct mlx4_ib_demux_ctx *ctx,
+			     struct ib_mad *mad)
+{
+	struct mlx4_ib_dev *dev = ctx->dev;
+	struct ib_mad_agent *agent = dev->send_agent[ctx->port - 1][1];
+	struct ib_wc wc;
+	struct ib_ah_attr ah_attr;
+
+	/* Our agent might not yet be registered when mads start to arrive */
+	if (!agent)
+		return -EAGAIN;
+
+	ib_query_ah(dev->sm_ah[ctx->port - 1], &ah_attr);
+
+	wc.pkey_index = 0;
+	wc.sl = 0;
+	wc.dlid_path_bits = 0;
+	wc.port_num = ctx->port;
+	wc.slid = ah_attr.dlid;  /* opensm lid */
+	wc.src_qp = 1;
+	return mlx4_ib_send_to_slave(dev, slave, ctx->port, IB_QPT_GSI, &wc, NULL, mad);
+}
+
+static int send_join_to_wire(struct mcast_group *group, struct ib_sa_mad *sa_mad)
+{
+	struct ib_sa_mad mad;
+	struct ib_sa_mcmember_data *sa_mad_data = (struct ib_sa_mcmember_data *)&mad.data;
+	int ret;
+
+	/* we rely on a mad request as arrived from a VF */
+	memcpy(&mad, sa_mad, sizeof mad);
+
+	/* fix port GID to be the real one (slave 0) */
+	sa_mad_data->port_gid.global.interface_id = group->demux->guid_cache[0];
+
+	/* assign our own TID */
+	mad.mad_hdr.tid = mlx4_ib_get_new_demux_tid(group->demux);
+	group->last_req_tid = mad.mad_hdr.tid; /* keep it for later validation */
+
+	ret = send_mad_to_wire(group->demux, (struct ib_mad *)&mad);
+	/* set timeout handler */
+	if (!ret) {
+		/* calls mlx4_ib_mcg_timeout_handler */
+		queue_delayed_work(group->demux->mcg_wq, &group->timeout_work,
+				msecs_to_jiffies(MAD_TIMEOUT_MS));
+	}
+
+	return ret;
+}
+
+static int send_leave_to_wire(struct mcast_group *group, u8 join_state)
+{
+	struct ib_sa_mad mad;
+	struct ib_sa_mcmember_data *sa_data = (struct ib_sa_mcmember_data *)&mad.data;
+	int ret;
+
+	memset(&mad, 0, sizeof mad);
+	mad.mad_hdr.base_version = 1;
+	mad.mad_hdr.mgmt_class = IB_MGMT_CLASS_SUBN_ADM;
+	mad.mad_hdr.class_version = 2;
+	mad.mad_hdr.method = IB_SA_METHOD_DELETE;
+	mad.mad_hdr.status = cpu_to_be16(0);
+	mad.mad_hdr.class_specific = cpu_to_be16(0);
+	mad.mad_hdr.tid = mlx4_ib_get_new_demux_tid(group->demux);
+	group->last_req_tid = mad.mad_hdr.tid; /* keep it for later validation */
+	mad.mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_MC_MEMBER_REC);
+	mad.mad_hdr.attr_mod = cpu_to_be32(0);
+	mad.sa_hdr.sm_key = 0x0;
+	mad.sa_hdr.attr_offset = cpu_to_be16(7);
+	mad.sa_hdr.comp_mask = IB_SA_MCMEMBER_REC_MGID |
+		IB_SA_MCMEMBER_REC_PORT_GID | IB_SA_MCMEMBER_REC_JOIN_STATE;
+
+	*sa_data = group->rec;
+	sa_data->scope_join_state = join_state;
+
+	ret = send_mad_to_wire(group->demux, (struct ib_mad *)&mad);
+	if (ret)
+		group->state = MCAST_IDLE;
+
+	/* set timeout handler */
+	if (!ret) {
+		/* calls mlx4_ib_mcg_timeout_handler */
+		queue_delayed_work(group->demux->mcg_wq, &group->timeout_work,
+				msecs_to_jiffies(MAD_TIMEOUT_MS));
+	}
+
+	return ret;
+}
+
+static int send_reply_to_slave(int slave, struct mcast_group *group,
+		struct ib_sa_mad *req_sa_mad, u16 status)
+{
+	struct ib_sa_mad mad;
+	struct ib_sa_mcmember_data *sa_data = (struct ib_sa_mcmember_data *)&mad.data;
+	struct ib_sa_mcmember_data *req_sa_data = (struct ib_sa_mcmember_data *)&req_sa_mad->data;
+	int ret;
+
+	memset(&mad, 0, sizeof mad);
+	mad.mad_hdr.base_version = 1;
+	mad.mad_hdr.mgmt_class = IB_MGMT_CLASS_SUBN_ADM;
+	mad.mad_hdr.class_version = 2;
+	mad.mad_hdr.method = IB_MGMT_METHOD_GET_RESP;
+	mad.mad_hdr.status = cpu_to_be16(status);
+	mad.mad_hdr.class_specific = cpu_to_be16(0);
+	mad.mad_hdr.tid = req_sa_mad->mad_hdr.tid;
+	*(u8 *)&mad.mad_hdr.tid = 0; /* resetting tid to 0 */
+	mad.mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_MC_MEMBER_REC);
+	mad.mad_hdr.attr_mod = cpu_to_be32(0);
+	mad.sa_hdr.sm_key = req_sa_mad->sa_hdr.sm_key;
+	mad.sa_hdr.attr_offset = cpu_to_be16(7);
+	mad.sa_hdr.comp_mask = 0; /* ignored on responses, see IBTA spec */
+
+	*sa_data = group->rec;
+
+	/* reconstruct VF's requested join_state and port_gid */
+	sa_data->scope_join_state &= 0xf0;
+	sa_data->scope_join_state |= (group->func[slave].join_state & 0x0f);
+	memcpy(&sa_data->port_gid, &req_sa_data->port_gid, sizeof req_sa_data->port_gid);
+
+	ret = send_mad_to_slave(slave, group->demux, (struct ib_mad *)&mad);
+	return ret;
+}
+
+static int check_selector(ib_sa_comp_mask comp_mask,
+			  ib_sa_comp_mask selector_mask,
+			  ib_sa_comp_mask value_mask,
+			  u8 src_value, u8 dst_value)
+{
+	int err;
+	u8 selector = dst_value >> 6;
+	dst_value &= 0x3f;
+	src_value &= 0x3f;
+
+	if (!(comp_mask & selector_mask) || !(comp_mask & value_mask))
+		return 0;
+
+	switch (selector) {
+	case IB_SA_GT:
+		err = (src_value <= dst_value);
+		break;
+	case IB_SA_LT:
+		err = (src_value >= dst_value);
+		break;
+	case IB_SA_EQ:
+		err = (src_value != dst_value);
+		break;
+	default:
+		err = 0;
+		break;
+	}
+
+	return err;
+}
+
+static u16 cmp_rec(struct ib_sa_mcmember_data *src,
+		   struct ib_sa_mcmember_data *dst, ib_sa_comp_mask comp_mask)
+{
+	/* src is group record, dst is request record */
+	/* MGID must already match */
+	/* Port_GID we always replace to our Port_GID, so it is a match */
+
+#define MAD_STATUS_REQ_INVALID 0x0200
+	if (comp_mask & IB_SA_MCMEMBER_REC_QKEY && src->qkey != dst->qkey)
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_MLID && src->mlid != dst->mlid)
+		return MAD_STATUS_REQ_INVALID;
+	if (check_selector(comp_mask, IB_SA_MCMEMBER_REC_MTU_SELECTOR,
+				 IB_SA_MCMEMBER_REC_MTU,
+				 src->mtusel_mtu, dst->mtusel_mtu))
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_TRAFFIC_CLASS &&
+	    src->tclass != dst->tclass)
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_PKEY && src->pkey != dst->pkey)
+		return MAD_STATUS_REQ_INVALID;
+	if (check_selector(comp_mask, IB_SA_MCMEMBER_REC_RATE_SELECTOR,
+				 IB_SA_MCMEMBER_REC_RATE,
+				 src->ratesel_rate, dst->ratesel_rate))
+		return MAD_STATUS_REQ_INVALID;
+	if (check_selector(comp_mask,
+				 IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR,
+				 IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME,
+				 src->lifetmsel_lifetm, dst->lifetmsel_lifetm))
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_SL &&
+			(be32_to_cpu(src->sl_flowlabel_hoplimit) & 0xf0000000) !=
+			(be32_to_cpu(dst->sl_flowlabel_hoplimit) & 0xf0000000))
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_FLOW_LABEL &&
+			(be32_to_cpu(src->sl_flowlabel_hoplimit) & 0x0fffff00) !=
+			(be32_to_cpu(dst->sl_flowlabel_hoplimit) & 0x0fffff00))
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_HOP_LIMIT &&
+			(be32_to_cpu(src->sl_flowlabel_hoplimit) & 0x000000ff) !=
+			(be32_to_cpu(dst->sl_flowlabel_hoplimit) & 0x000000ff))
+		return MAD_STATUS_REQ_INVALID;
+	if (comp_mask & IB_SA_MCMEMBER_REC_SCOPE &&
+			(src->scope_join_state & 0xf0) !=
+			(dst->scope_join_state & 0xf0))
+		return MAD_STATUS_REQ_INVALID;
+
+	/* join_state checked separately, proxy_join ignored */
+
+	return 0;
+}
+
+/* release group, return 1 if this was last release and group is destroyed
+ * timout work is canceled sync */
+static int release_group(struct mcast_group *group, int from_timeout_handler)
+{
+	struct mlx4_ib_demux_ctx *ctx = group->demux;
+	int nzgroup;
+
+	mutex_lock(&ctx->mcg_table_lock);
+	mutex_lock(&group->lock);
+	if (atomic_dec_and_test(&group->refcount)) {
+		if (!from_timeout_handler) {
+			if (group->state != MCAST_IDLE &&
+			    !cancel_delayed_work(&group->timeout_work)) {
+				atomic_inc(&group->refcount);
+				mutex_unlock(&group->lock);
+				mutex_unlock(&ctx->mcg_table_lock);
+				return 0;
+			}
+		}
+
+		nzgroup = memcmp(&group->rec.mgid, &mgid0, sizeof mgid0);
+		if (nzgroup)
+			del_sysfs_port_mcg_attr(ctx->dev, ctx->port, &group->dentry.attr);
+		if (!list_empty(&group->pending_list))
+			mcg_warn_group(group, "releasing a group with non empty pending list\n");
+		if (nzgroup)
+			rb_erase(&group->node, &ctx->mcg_table);
+		list_del_init(&group->mgid0_list);
+		mutex_unlock(&group->lock);
+		mutex_unlock(&ctx->mcg_table_lock);
+		kfree(group);
+		return 1;
+	} else {
+		mutex_unlock(&group->lock);
+		mutex_unlock(&ctx->mcg_table_lock);
+	}
+	return 0;
+}
+
+static void adjust_membership(struct mcast_group *group, u8 join_state, int inc)
+{
+	int i;
+
+	for (i = 0; i < 3; i++, join_state >>= 1)
+		if (join_state & 0x1)
+			group->members[i] += inc;
+}
+
+static u8 get_leave_state(struct mcast_group *group)
+{
+	u8 leave_state = 0;
+	int i;
+
+	for (i = 0; i < 3; i++)
+		if (!group->members[i])
+			leave_state |= (1 << i);
+
+	return leave_state & (group->rec.scope_join_state & 7);
+}
+
+static int join_group(struct mcast_group *group, int slave, u8 join_mask)
+{
+	int ret = 0;
+	u8 join_state;
+
+	/* remove bits that slave is already member of, and adjust */
+	join_state = join_mask & (~group->func[slave].join_state);
+	adjust_membership(group, join_state, 1);
+	group->func[slave].join_state |= join_state;
+	if (group->func[slave].state != MCAST_MEMBER && join_state) {
+		group->func[slave].state = MCAST_MEMBER;
+		ret = 1;
+	}
+	return ret;
+}
+
+static int leave_group(struct mcast_group *group, int slave, u8 leave_state)
+{
+	int ret = 0;
+
+	adjust_membership(group, leave_state, -1);
+	group->func[slave].join_state &= ~leave_state;
+	if (!group->func[slave].join_state) {
+		group->func[slave].state = MCAST_NOT_MEMBER;
+		ret = 1;
+	}
+	return ret;
+}
+
+static int check_leave(struct mcast_group *group, int slave, u8 leave_mask)
+{
+	if (group->func[slave].state != MCAST_MEMBER)
+		return MAD_STATUS_REQ_INVALID;
+
+	/* make sure we're not deleting unset bits */
+	if (~group->func[slave].join_state & leave_mask)
+		return MAD_STATUS_REQ_INVALID;
+
+	if (!leave_mask)
+		return MAD_STATUS_REQ_INVALID;
+
+	return 0;
+}
+
+static void mlx4_ib_mcg_timeout_handler(struct work_struct *work)
+{
+	struct delayed_work *delay = to_delayed_work(work);
+	struct mcast_group *group;
+	struct mcast_req *req = NULL;
+
+	group = container_of(delay, typeof(*group), timeout_work);
+
+	mutex_lock(&group->lock);
+	if (group->state == MCAST_JOIN_SENT) {
+		if (!list_empty(&group->pending_list)) {
+			req = list_first_entry(&group->pending_list, struct mcast_req, group_list);
+			list_del(&req->group_list);
+			list_del(&req->func_list);
+			--group->func[req->func].num_pend_reqs;
+			mutex_unlock(&group->lock);
+			kfree(req);
+			if (memcmp(&group->rec.mgid, &mgid0, sizeof mgid0)) {
+				if (release_group(group, 1))
+					return;
+			} else {
+				kfree(group);
+				return;
+			}
+			mutex_lock(&group->lock);
+		} else
+			mcg_warn_group(group, "DRIVER BUG\n");
+	} else if (group->state == MCAST_LEAVE_SENT) {
+		if (group->rec.scope_join_state & 7)
+			group->rec.scope_join_state &= 0xf8;
+		group->state = MCAST_IDLE;
+		mutex_unlock(&group->lock);
+		if (release_group(group, 1))
+			return;
+		mutex_lock(&group->lock);
+	} else
+		mcg_warn_group(group, "invalid state %s\n", get_state_string(group->state));
+	group->state = MCAST_IDLE;
+	atomic_inc(&group->refcount);
+	if (!queue_work(group->demux->mcg_wq, &group->work))
+		safe_atomic_dec(&group->refcount);
+
+	mutex_unlock(&group->lock);
+}
+
+static int handle_leave_req(struct mcast_group *group, u8 leave_mask,
+			    struct mcast_req *req)
+{
+	u16 status;
+
+	if (req->clean)
+		leave_mask = group->func[req->func].join_state;
+
+	status = check_leave(group, req->func, leave_mask);
+	if (!status)
+		leave_group(group, req->func, leave_mask);
+
+	if (!req->clean)
+		send_reply_to_slave(req->func, group, &req->sa_mad, status);
+	--group->func[req->func].num_pend_reqs;
+	list_del(&req->group_list);
+	list_del(&req->func_list);
+	kfree(req);
+	return 1;
+}
+
+static int handle_join_req(struct mcast_group *group, u8 join_mask,
+			   struct mcast_req *req)
+{
+	u8 group_join_state = group->rec.scope_join_state & 7;
+	int ref = 0;
+	u16 status;
+	struct ib_sa_mcmember_data *sa_data = (struct ib_sa_mcmember_data *)req->sa_mad.data;
+
+	if (join_mask == (group_join_state & join_mask)) {
+		/* port's membership need not change */
+		status = cmp_rec(&group->rec, sa_data, req->sa_mad.sa_hdr.comp_mask);
+		if (!status)
+			join_group(group, req->func, join_mask);
+
+		--group->func[req->func].num_pend_reqs;
+		send_reply_to_slave(req->func, group, &req->sa_mad, status);
+		list_del(&req->group_list);
+		list_del(&req->func_list);
+		kfree(req);
+		++ref;
+	} else {
+		/* port's membership needs to be updated */
+		group->prev_state = group->state;
+		if (send_join_to_wire(group, &req->sa_mad)) {
+			--group->func[req->func].num_pend_reqs;
+			list_del(&req->group_list);
+			list_del(&req->func_list);
+			kfree(req);
+			ref = 1;
+			group->state = group->prev_state;
+		} else
+			group->state = MCAST_JOIN_SENT;
+	}
+
+	return ref;
+}
+
+static void mlx4_ib_mcg_work_handler(struct work_struct *work)
+{
+	struct mcast_group *group;
+	struct mcast_req *req = NULL;
+	struct ib_sa_mcmember_data *sa_data;
+	u8 req_join_state;
+	int rc = 1; /* release_count - this is for the scheduled work */
+	u16 status;
+	u8 method;
+
+	group = container_of(work, typeof(*group), work);
+
+	mutex_lock(&group->lock);
+
+	/* First, let's see if a response from SM is waiting regarding this group.
+	 * If so, we need to update the group's REC. If this is a bad response, we
+	 * may need to send a bad response to a VF waiting for it. If VF is waiting
+	 * and this is a good response, the VF will be answered later in this func. */
+	if (group->state == MCAST_RESP_READY) {
+		/* cancels mlx4_ib_mcg_timeout_handler */
+		cancel_delayed_work(&group->timeout_work);
+		status = be16_to_cpu(group->response_sa_mad.mad_hdr.status);
+		method = group->response_sa_mad.mad_hdr.method;
+		if (group->last_req_tid != group->response_sa_mad.mad_hdr.tid) {
+			mcg_warn_group(group, "Got MAD response to existing MGID but wrong TID, dropping. Resp TID=%llx, group TID=%llx\n",
+				be64_to_cpu(group->response_sa_mad.mad_hdr.tid),
+				be64_to_cpu(group->last_req_tid));
+			group->state = group->prev_state;
+			goto process_requests;
+		}
+		if (status) {
+			if (!list_empty(&group->pending_list))
+				req = list_first_entry(&group->pending_list,
+						struct mcast_req, group_list);
+			if ((method == IB_MGMT_METHOD_GET_RESP)) {
+					if (req) {
+						send_reply_to_slave(req->func, group, &req->sa_mad, status);
+						--group->func[req->func].num_pend_reqs;
+						list_del(&req->group_list);
+						list_del(&req->func_list);
+						kfree(req);
+						++rc;
+					} else
+						mcg_warn_group(group, "no request for failed join\n");
+			} else if (method == IB_SA_METHOD_DELETE_RESP && group->demux->flushing)
+				++rc;
+		} else {
+			u8 resp_join_state;
+			u8 cur_join_state;
+
+			resp_join_state = ((struct ib_sa_mcmember_data *)
+						group->response_sa_mad.data)->scope_join_state & 7;
+			cur_join_state = group->rec.scope_join_state & 7;
+
+			if (method == IB_MGMT_METHOD_GET_RESP) {
+				/* successfull join */
+				if (!cur_join_state && resp_join_state)
+					--rc;
+			} else if (!resp_join_state)
+					++rc;
+			memcpy(&group->rec, group->response_sa_mad.data, sizeof group->rec);
+		}
+		group->state = MCAST_IDLE;
+	}
+
+process_requests:
+	/* We should now go over pending join/leave requests, as long as we are idle. */
+	while (!list_empty(&group->pending_list) && group->state == MCAST_IDLE) {
+		req = list_first_entry(&group->pending_list, struct mcast_req,
+				       group_list);
+		sa_data = (struct ib_sa_mcmember_data *)req->sa_mad.data;
+		req_join_state = sa_data->scope_join_state & 0x7;
+
+		/* For a leave request, we will immediately answer the VF, and
+		 * update our internal counters. The actual leave will be sent
+		 * to SM later, if at all needed. We dequeue the request now. */
+		if (req->sa_mad.mad_hdr.method == IB_SA_METHOD_DELETE)
+			rc += handle_leave_req(group, req_join_state, req);
+		else
+			rc += handle_join_req(group, req_join_state, req);
+	}
+
+	/* Handle leaves */
+	if (group->state == MCAST_IDLE) {
+		req_join_state = get_leave_state(group);
+		if (req_join_state) {
+			group->rec.scope_join_state &= ~req_join_state;
+			group->prev_state = group->state;
+			if (send_leave_to_wire(group, req_join_state)) {
+				group->state = group->prev_state;
+				++rc;
+			} else
+				group->state = MCAST_LEAVE_SENT;
+		}
+	}
+
+	if (!list_empty(&group->pending_list) && group->state == MCAST_IDLE)
+		goto process_requests;
+	mutex_unlock(&group->lock);
+
+	while (rc--)
+		release_group(group, 0);
+}
+
+static struct mcast_group *search_relocate_mgid0_group(struct mlx4_ib_demux_ctx *ctx,
+						       __be64 tid,
+						       union ib_gid *new_mgid)
+{
+	struct mcast_group *group = NULL, *cur_group;
+	struct mcast_req *req;
+	struct list_head *pos;
+	struct list_head *n;
+
+	mutex_lock(&ctx->mcg_table_lock);
+	list_for_each_safe(pos, n, &ctx->mcg_mgid0_list) {
+		group = list_entry(pos, struct mcast_group, mgid0_list);
+		mutex_lock(&group->lock);
+		if (group->last_req_tid == tid) {
+			if (memcmp(new_mgid, &mgid0, sizeof mgid0)) {
+				group->rec.mgid = *new_mgid;
+				sprintf(group->name, "%016llx%016llx",
+						be64_to_cpu(group->rec.mgid.global.subnet_prefix),
+						be64_to_cpu(group->rec.mgid.global.interface_id));
+				list_del_init(&group->mgid0_list);
+				cur_group = mcast_insert(ctx, group);
+				if (cur_group) {
+					/* A race between our code and SM. Silently cleaning the new one */
+					req = list_first_entry(&group->pending_list,
+							       struct mcast_req, group_list);
+					--group->func[req->func].num_pend_reqs;
+					list_del(&req->group_list);
+					list_del(&req->func_list);
+					kfree(req);
+					mutex_unlock(&group->lock);
+					mutex_unlock(&ctx->mcg_table_lock);
+					release_group(group, 0);
+					return NULL;
+				}
+
+				atomic_inc(&group->refcount);
+				add_sysfs_port_mcg_attr(ctx->dev, ctx->port, &group->dentry.attr);
+				mutex_unlock(&group->lock);
+				mutex_unlock(&ctx->mcg_table_lock);
+				return group;
+			} else {
+				struct mcast_req *tmp1, *tmp2;
+
+				list_del(&group->mgid0_list);
+				if (!list_empty(&group->pending_list) && group->state != MCAST_IDLE)
+					cancel_delayed_work_sync(&group->timeout_work);
+
+				list_for_each_entry_safe(tmp1, tmp2, &group->pending_list, group_list) {
+					list_del(&tmp1->group_list);
+					kfree(tmp1);
+				}
+				mutex_unlock(&group->lock);
+				mutex_unlock(&ctx->mcg_table_lock);
+				kfree(group);
+				return NULL;
+			}
+		}
+		mutex_unlock(&group->lock);
+	}
+	mutex_unlock(&ctx->mcg_table_lock);
+
+	return NULL;
+}
+
+static ssize_t sysfs_show_group(struct device *dev,
+		struct device_attribute *attr, char *buf);
+
+static struct mcast_group *acquire_group(struct mlx4_ib_demux_ctx *ctx,
+					 union ib_gid *mgid, int create,
+					 gfp_t gfp_mask)
+{
+	struct mcast_group *group, *cur_group;
+	int is_mgid0;
+	int i;
+
+	is_mgid0 = !memcmp(&mgid0, mgid, sizeof mgid0);
+	if (!is_mgid0) {
+		group = mcast_find(ctx, mgid);
+		if (group)
+			goto found;
+	}
+
+	if (!create)
+		return ERR_PTR(-ENOENT);
+
+	group = kzalloc(sizeof *group, gfp_mask);
+	if (!group)
+		return ERR_PTR(-ENOMEM);
+
+	group->demux = ctx;
+	group->rec.mgid = *mgid;
+	INIT_LIST_HEAD(&group->pending_list);
+	INIT_LIST_HEAD(&group->mgid0_list);
+	for (i = 0; i < MAX_VFS; ++i)
+		INIT_LIST_HEAD(&group->func[i].pending);
+	INIT_WORK(&group->work, mlx4_ib_mcg_work_handler);
+	INIT_DELAYED_WORK(&group->timeout_work, mlx4_ib_mcg_timeout_handler);
+	mutex_init(&group->lock);
+	sprintf(group->name, "%016llx%016llx",
+			be64_to_cpu(group->rec.mgid.global.subnet_prefix),
+			be64_to_cpu(group->rec.mgid.global.interface_id));
+	sysfs_attr_init(&group->dentry.attr);
+	group->dentry.show = sysfs_show_group;
+	group->dentry.store = NULL;
+	group->dentry.attr.name = group->name;
+	group->dentry.attr.mode = 0400;
+	group->state = MCAST_IDLE;
+
+	if (is_mgid0) {
+		list_add(&group->mgid0_list, &ctx->mcg_mgid0_list);
+		goto found;
+	}
+
+	cur_group = mcast_insert(ctx, group);
+	if (cur_group) {
+		mcg_warn("group just showed up %s - confused\n", cur_group->name);
+		kfree(group);
+		return ERR_PTR(-EINVAL);
+	}
+
+	add_sysfs_port_mcg_attr(ctx->dev, ctx->port, &group->dentry.attr);
+
+found:
+	atomic_inc(&group->refcount);
+	return group;
+}
+
+static void queue_req(struct mcast_req *req)
+{
+	struct mcast_group *group = req->group;
+
+	atomic_inc(&group->refcount); /* for the request */
+	atomic_inc(&group->refcount); /* for scheduling the work */
+	list_add_tail(&req->group_list, &group->pending_list);
+	list_add_tail(&req->func_list, &group->func[req->func].pending);
+	/* calls mlx4_ib_mcg_work_handler */
+	if (!queue_work(group->demux->mcg_wq, &group->work))
+		safe_atomic_dec(&group->refcount);
+}
+
+int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
+			      struct ib_sa_mad *mad)
+{
+	struct mlx4_ib_dev *dev = to_mdev(ibdev);
+	struct ib_sa_mcmember_data *rec = (struct ib_sa_mcmember_data *)mad->data;
+	struct mlx4_ib_demux_ctx *ctx = &dev->sriov.demux[port - 1];
+	struct mcast_group *group;
+
+	switch (mad->mad_hdr.method) {
+	case IB_MGMT_METHOD_GET_RESP:
+	case IB_SA_METHOD_DELETE_RESP:
+		mutex_lock(&ctx->mcg_table_lock);
+		group = acquire_group(ctx, &rec->mgid, 0, GFP_KERNEL);
+		mutex_unlock(&ctx->mcg_table_lock);
+		if (IS_ERR(group)) {
+			if (mad->mad_hdr.method == IB_MGMT_METHOD_GET_RESP) {
+				__be64 tid = mad->mad_hdr.tid;
+				*(u8 *)(&tid) = (u8)slave; /* in group we kept the modified TID */
+				group = search_relocate_mgid0_group(ctx, tid, &rec->mgid);
+			} else
+				group = NULL;
+		}
+
+		if (!group)
+			return 1;
+
+		mutex_lock(&group->lock);
+		group->response_sa_mad = *mad;
+		group->prev_state = group->state;
+		group->state = MCAST_RESP_READY;
+		/* calls mlx4_ib_mcg_work_handler */
+		atomic_inc(&group->refcount);
+		if (!queue_work(ctx->mcg_wq, &group->work))
+			safe_atomic_dec(&group->refcount);
+		mutex_unlock(&group->lock);
+		release_group(group, 0);
+		return 1; /* consumed */
+	case IB_MGMT_METHOD_SET:
+	case IB_SA_METHOD_GET_TABLE:
+	case IB_SA_METHOD_GET_TABLE_RESP:
+	case IB_SA_METHOD_DELETE:
+		return 0; /* not consumed, pass-through to guest over tunnel */
+	default:
+		mcg_warn("In demux, port %d: unexpected MCMember method: 0x%x, dropping\n",
+			port, mad->mad_hdr.method);
+		return 1; /* consumed */
+	}
+}
+
+int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port,
+				  int slave, struct ib_sa_mad *sa_mad)
+{
+	struct mlx4_ib_dev *dev = to_mdev(ibdev);
+	struct ib_sa_mcmember_data *rec = (struct ib_sa_mcmember_data *)sa_mad->data;
+	struct mlx4_ib_demux_ctx *ctx = &dev->sriov.demux[port - 1];
+	struct mcast_group *group;
+	struct mcast_req *req;
+	int may_create = 0;
+
+	if (ctx->flushing)
+		return -EAGAIN;
+
+	switch (sa_mad->mad_hdr.method) {
+	case IB_MGMT_METHOD_SET:
+		may_create = 1;
+	case IB_SA_METHOD_DELETE:
+		req = kzalloc(sizeof *req, GFP_KERNEL);
+		if (!req)
+			return -ENOMEM;
+
+		req->func = slave;
+		req->sa_mad = *sa_mad;
+
+		mutex_lock(&ctx->mcg_table_lock);
+		group = acquire_group(ctx, &rec->mgid, may_create, GFP_KERNEL);
+		mutex_unlock(&ctx->mcg_table_lock);
+		if (IS_ERR(group)) {
+			kfree(req);
+			return PTR_ERR(group);
+		}
+		mutex_lock(&group->lock);
+		if (group->func[slave].num_pend_reqs > MAX_PEND_REQS_PER_FUNC) {
+			mutex_unlock(&group->lock);
+			mcg_warn_group(group, "Port %d, Func %d has too many pending requests (%d), dropping\n",
+				       port, slave, MAX_PEND_REQS_PER_FUNC);
+			release_group(group, 0);
+			kfree(req);
+			return -ENOMEM;
+		}
+		++group->func[slave].num_pend_reqs;
+		req->group = group;
+		queue_req(req);
+		mutex_unlock(&group->lock);
+		release_group(group, 0);
+		return 1; /* consumed */
+	case IB_SA_METHOD_GET_TABLE:
+	case IB_MGMT_METHOD_GET_RESP:
+	case IB_SA_METHOD_GET_TABLE_RESP:
+	case IB_SA_METHOD_DELETE_RESP:
+		return 0; /* not consumed, pass-through */
+	default:
+		mcg_warn("In multiplex, port %d, func %d: unexpected MCMember method: 0x%x, dropping\n",
+			port, slave, sa_mad->mad_hdr.method);
+		return 1; /* consumed */
+	}
+}
+
+static ssize_t sysfs_show_group(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct mcast_group *group =
+		container_of(attr, struct mcast_group, dentry);
+	struct mcast_req *req = NULL;
+	char pending_str[40];
+	char state_str[40];
+	ssize_t len = 0;
+	int f;
+
+	if (group->state == MCAST_IDLE)
+		sprintf(state_str, "%s", get_state_string(group->state));
+	else
+		sprintf(state_str, "%s(TID=0x%llx)",
+				get_state_string(group->state),
+				be64_to_cpu(group->last_req_tid));
+	if (list_empty(&group->pending_list)) {
+		sprintf(pending_str, "No");
+	} else {
+		req = list_first_entry(&group->pending_list, struct mcast_req, group_list);
+		sprintf(pending_str, "Yes(TID=0x%llx)",
+				be64_to_cpu(req->sa_mad.mad_hdr.tid));
+	}
+	len += sprintf(buf + len, "%1d [%02d,%02d,%02d] %4d %4s %5s     ",
+			group->rec.scope_join_state & 0xf,
+			group->members[2], group->members[1], group->members[0],
+			atomic_read(&group->refcount),
+			pending_str,
+			state_str);
+	for (f = 0; f < MAX_VFS; ++f)
+		if (group->func[f].state == MCAST_MEMBER)
+			len += sprintf(buf + len, "%d[%1x] ",
+					f, group->func[f].join_state);
+
+	len += sprintf(buf + len, "\t\t(%4hx %4x %2x %2x %2x %2x %2x "
+		"%4x %4x %2x %2x)\n",
+		be16_to_cpu(group->rec.pkey),
+		be32_to_cpu(group->rec.qkey),
+		(group->rec.mtusel_mtu & 0xc0) >> 6,
+		group->rec.mtusel_mtu & 0x3f,
+		group->rec.tclass,
+		(group->rec.ratesel_rate & 0xc0) >> 6,
+		group->rec.ratesel_rate & 0x3f,
+		(be32_to_cpu(group->rec.sl_flowlabel_hoplimit) & 0xf0000000) >> 28,
+		(be32_to_cpu(group->rec.sl_flowlabel_hoplimit) & 0x0fffff00) >> 8,
+		be32_to_cpu(group->rec.sl_flowlabel_hoplimit) & 0x000000ff,
+		group->rec.proxy_join);
+
+	return len;
+}
+
+int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
+{
+	char name[20];
+
+	atomic_set(&ctx->tid, 0);
+	sprintf(name, "mlx4_ib_mcg%d", ctx->port);
+	ctx->mcg_wq = create_singlethread_workqueue(name);
+	if (!ctx->mcg_wq)
+		return -ENOMEM;
+
+	mutex_init(&ctx->mcg_table_lock);
+	ctx->mcg_table = RB_ROOT;
+	INIT_LIST_HEAD(&ctx->mcg_mgid0_list);
+	ctx->flushing = 0;
+
+	return 0;
+}
+
+static void force_clean_group(struct mcast_group *group)
+{
+	struct mcast_req *req, *tmp
+		;
+	list_for_each_entry_safe(req, tmp, &group->pending_list, group_list) {
+		list_del(&req->group_list);
+		kfree(req);
+	}
+	del_sysfs_port_mcg_attr(group->demux->dev, group->demux->port, &group->dentry.attr);
+	rb_erase(&group->node, &group->demux->mcg_table);
+	kfree(group);
+}
+
+static void _mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq)
+{
+	int i;
+	struct rb_node *p;
+	struct mcast_group *group;
+	unsigned long end;
+	int count;
+
+	if (ctx->flushing)
+		return;
+
+	ctx->flushing = 1;
+	for (i = 0; i < MAX_VFS; ++i)
+		clean_vf_mcast(ctx, i);
+
+	end = jiffies + msecs_to_jiffies(MAD_TIMEOUT_MS + 3000);
+	do {
+		count = 0;
+		mutex_lock(&ctx->mcg_table_lock);
+		for (p = rb_first(&ctx->mcg_table); p; p = rb_next(p))
+			++count;
+		mutex_unlock(&ctx->mcg_table_lock);
+		if (!count)
+			break;
+
+		msleep(1);
+	} while (time_after(end, jiffies));
+
+	flush_workqueue(ctx->mcg_wq);
+	if (destroy_wq)
+		destroy_workqueue(ctx->mcg_wq);
+
+	mutex_lock(&ctx->mcg_table_lock);
+	while ((p = rb_first(&ctx->mcg_table)) != NULL) {
+		group = rb_entry(p, struct mcast_group, node);
+		if (atomic_read(&group->refcount))
+			mcg_warn_group(group, "group refcount %d!!! (pointer %p)\n", atomic_read(&group->refcount), group);
+
+		force_clean_group(group);
+	}
+	mutex_unlock(&ctx->mcg_table_lock);
+
+	if (!destroy_wq)
+		ctx->flushing = 0;
+}
+
+struct clean_work {
+	struct work_struct work;
+	struct mlx4_ib_demux_ctx *ctx;
+	int destroy_wq;
+};
+
+static void mcg_clean_task(struct work_struct *work)
+{
+	struct clean_work *cw = container_of(work, struct clean_work, work);
+
+	_mlx4_ib_mcg_port_cleanup(cw->ctx, cw->destroy_wq);
+	kfree(cw);
+}
+
+void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq)
+{
+	struct clean_work *work;
+
+	if (destroy_wq) {
+		_mlx4_ib_mcg_port_cleanup(ctx, destroy_wq);
+		return;
+	}
+
+	work = kmalloc(sizeof *work, GFP_KERNEL);
+	if (!work) {
+		mcg_warn("failed allocating work for cleanup\n");
+		return;
+	}
+
+	work->ctx = ctx;
+	work->destroy_wq = destroy_wq;
+	INIT_WORK(&work->work, mcg_clean_task);
+	queue_work(clean_wq, &work->work);
+}
+
+static void build_leave_mad(struct mcast_req *req)
+{
+	struct ib_sa_mad *mad = &req->sa_mad;
+
+	mad->mad_hdr.method = IB_SA_METHOD_DELETE;
+}
+
+
+static void clear_pending_reqs(struct mcast_group *group, int vf)
+{
+	struct mcast_req *req, *tmp, *group_first = NULL;
+	int clear;
+	int pend = 0;
+
+	if (!list_empty(&group->pending_list))
+		group_first = list_first_entry(&group->pending_list, struct mcast_req, group_list);
+
+	list_for_each_entry_safe(req, tmp, &group->func[vf].pending, func_list) {
+		clear = 1;
+		if (group_first == req &&
+		    (group->state == MCAST_JOIN_SENT ||
+		     group->state == MCAST_LEAVE_SENT)) {
+			clear = cancel_delayed_work(&group->timeout_work);
+			pend = !clear;
+			group->state = MCAST_IDLE;
+		}
+		if (clear) {
+			--group->func[vf].num_pend_reqs;
+			list_del(&req->group_list);
+			list_del(&req->func_list);
+			kfree(req);
+			atomic_dec(&group->refcount);
+		}
+	}
+
+	if (!pend && (!list_empty(&group->func[vf].pending) || group->func[vf].num_pend_reqs)) {
+		mcg_warn_group(group, "DRIVER BUG: list_empty %d, num_pend_reqs %d\n",
+			       list_empty(&group->func[vf].pending), group->func[vf].num_pend_reqs);
+	}
+}
+
+static int push_deleteing_req(struct mcast_group *group, int slave)
+{
+	struct mcast_req *req;
+	struct mcast_req *pend_req;
+
+	if (!group->func[slave].join_state)
+		return 0;
+
+	req = kzalloc(sizeof *req, GFP_KERNEL);
+	if (!req) {
+		mcg_warn_group(group, "failed allocation - may leave stall groups\n");
+		return -ENOMEM;
+	}
+
+	if (!list_empty(&group->func[slave].pending)) {
+		pend_req = list_entry(group->func[slave].pending.prev, struct mcast_req, group_list);
+		if (pend_req->clean) {
+			kfree(req);
+			return 0;
+		}
+	}
+
+	req->clean = 1;
+	req->func = slave;
+	req->group = group;
+	++group->func[slave].num_pend_reqs;
+	build_leave_mad(req);
+	queue_req(req);
+	return 0;
+}
+
+void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave)
+{
+	struct mcast_group *group;
+	struct rb_node *p;
+
+	mutex_lock(&ctx->mcg_table_lock);
+	for (p = rb_first(&ctx->mcg_table); p; p = rb_next(p)) {
+		group = rb_entry(p, struct mcast_group, node);
+		mutex_lock(&group->lock);
+		if (atomic_read(&group->refcount)) {
+			/* clear pending requests of this VF */
+			clear_pending_reqs(group, slave);
+			push_deleteing_req(group, slave);
+		}
+		mutex_unlock(&group->lock);
+	}
+	mutex_unlock(&ctx->mcg_table_lock);
+}
+
+
+int mlx4_ib_mcg_init(void)
+{
+	clean_wq = create_singlethread_workqueue("mlx4_ib_mcg");
+	if (!clean_wq)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void mlx4_ib_mcg_destroy(void)
+{
+	destroy_workqueue(clean_wq);
+}
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index c136bb618e2..e04cbc9a54a 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -37,9 +37,12 @@
 #include <linux/compiler.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
+#include <linux/idr.h>
 
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_umem.h>
+#include <rdma/ib_mad.h>
+#include <rdma/ib_sa.h>
 
 #include <linux/mlx4/device.h>
 #include <linux/mlx4/doorbell.h>
@@ -62,6 +65,9 @@ enum {
 #define MLX4_IB_SQ_HEADROOM(shift)	((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
 #define MLX4_IB_SQ_MAX_SPARE		(MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
 
+/*module param to indicate if SM assigns the alias_GUID*/
+extern int mlx4_ib_sm_guid_assign;
+
 struct mlx4_ib_ucontext {
 	struct ib_ucontext	ibucontext;
 	struct mlx4_uar		uar;
@@ -133,8 +139,10 @@ struct mlx4_ib_wq {
 };
 
 enum mlx4_ib_qp_flags {
-	MLX4_IB_QP_LSO				= 1 << 0,
-	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK	= 1 << 1,
+	MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
+	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
+	MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
+	MLX4_IB_SRIOV_SQP = 1 << 31,
 };
 
 struct mlx4_ib_gid_entry {
@@ -144,6 +152,80 @@ struct mlx4_ib_gid_entry {
 	u8			port;
 };
 
+enum mlx4_ib_qp_type {
+	/*
+	 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
+	 * here (and in that order) since the MAD layer uses them as
+	 * indices into a 2-entry table.
+	 */
+	MLX4_IB_QPT_SMI = IB_QPT_SMI,
+	MLX4_IB_QPT_GSI = IB_QPT_GSI,
+
+	MLX4_IB_QPT_RC = IB_QPT_RC,
+	MLX4_IB_QPT_UC = IB_QPT_UC,
+	MLX4_IB_QPT_UD = IB_QPT_UD,
+	MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
+	MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
+	MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
+	MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
+	MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
+
+	MLX4_IB_QPT_PROXY_SMI_OWNER	= 1 << 16,
+	MLX4_IB_QPT_PROXY_SMI		= 1 << 17,
+	MLX4_IB_QPT_PROXY_GSI		= 1 << 18,
+	MLX4_IB_QPT_TUN_SMI_OWNER	= 1 << 19,
+	MLX4_IB_QPT_TUN_SMI		= 1 << 20,
+	MLX4_IB_QPT_TUN_GSI		= 1 << 21,
+};
+
+#define MLX4_IB_QPT_ANY_SRIOV	(MLX4_IB_QPT_PROXY_SMI_OWNER | \
+	MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
+	MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
+
+enum mlx4_ib_mad_ifc_flags {
+	MLX4_MAD_IFC_IGNORE_MKEY	= 1,
+	MLX4_MAD_IFC_IGNORE_BKEY	= 2,
+	MLX4_MAD_IFC_IGNORE_KEYS	= (MLX4_MAD_IFC_IGNORE_MKEY |
+					   MLX4_MAD_IFC_IGNORE_BKEY),
+	MLX4_MAD_IFC_NET_VIEW		= 4,
+};
+
+enum {
+	MLX4_NUM_TUNNEL_BUFS		= 256,
+};
+
+struct mlx4_ib_tunnel_header {
+	struct mlx4_av av;
+	__be32 remote_qpn;
+	__be32 qkey;
+	__be16 vlan;
+	u8 mac[6];
+	__be16 pkey_index;
+	u8 reserved[6];
+};
+
+struct mlx4_ib_buf {
+	void *addr;
+	dma_addr_t map;
+};
+
+struct mlx4_rcv_tunnel_hdr {
+	__be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
+			      * 0x0 - no vlan was in the packet
+			      * 0x01 - C-VLAN was in the packet */
+	u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
+	u8 reserved;
+	__be16 pkey_index;
+	__be16 sl_vid;
+	__be16 slid_mac_47_32;
+	__be32 mac_31_0;
+};
+
+struct mlx4_ib_proxy_sqp_hdr {
+	struct ib_grh grh;
+	struct mlx4_rcv_tunnel_hdr tun;
+}  __packed;
+
 struct mlx4_ib_qp {
 	struct ib_qp		ibqp;
 	struct mlx4_qp		mqp;
@@ -159,6 +241,7 @@ struct mlx4_ib_qp {
 	int			sq_spare_wqes;
 	struct mlx4_ib_wq	sq;
 
+	enum mlx4_ib_qp_type	mlx4_ib_qp_type;
 	struct ib_umem	       *umem;
 	struct mlx4_mtt		mtt;
 	int			buf_size;
@@ -174,6 +257,8 @@ struct mlx4_ib_qp {
 	int			mlx_type;
 	struct list_head	gid_list;
 	struct list_head	steering_rules;
+	struct mlx4_ib_buf	*sqp_proxy_rcv;
+
 };
 
 struct mlx4_ib_srq {
@@ -196,6 +281,138 @@ struct mlx4_ib_ah {
 	union mlx4_ext_av       av;
 };
 
+/****************************************/
+/* alias guid support */
+/****************************************/
+#define NUM_PORT_ALIAS_GUID		2
+#define NUM_ALIAS_GUID_IN_REC		8
+#define NUM_ALIAS_GUID_REC_IN_PORT	16
+#define GUID_REC_SIZE			8
+#define NUM_ALIAS_GUID_PER_PORT		128
+#define MLX4_NOT_SET_GUID		(0x00LL)
+#define MLX4_GUID_FOR_DELETE_VAL	(~(0x00LL))
+
+enum mlx4_guid_alias_rec_status {
+	MLX4_GUID_INFO_STATUS_IDLE,
+	MLX4_GUID_INFO_STATUS_SET,
+	MLX4_GUID_INFO_STATUS_PENDING,
+};
+
+enum mlx4_guid_alias_rec_ownership {
+	MLX4_GUID_DRIVER_ASSIGN,
+	MLX4_GUID_SYSADMIN_ASSIGN,
+	MLX4_GUID_NONE_ASSIGN, /*init state of each record*/
+};
+
+enum mlx4_guid_alias_rec_method {
+	MLX4_GUID_INFO_RECORD_SET	= IB_MGMT_METHOD_SET,
+	MLX4_GUID_INFO_RECORD_DELETE	= IB_SA_METHOD_DELETE,
+};
+
+struct mlx4_sriov_alias_guid_info_rec_det {
+	u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
+	ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
+	enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
+	u8 method; /*set or delete*/
+	enum mlx4_guid_alias_rec_ownership ownership; /*indicates who assign that alias_guid record*/
+};
+
+struct mlx4_sriov_alias_guid_port_rec_det {
+	struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
+	struct workqueue_struct *wq;
+	struct delayed_work alias_guid_work;
+	u8 port;
+	struct mlx4_sriov_alias_guid *parent;
+	struct list_head cb_list;
+};
+
+struct mlx4_sriov_alias_guid {
+	struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
+	spinlock_t ag_work_lock;
+	struct ib_sa_client *sa_client;
+};
+
+struct mlx4_ib_demux_work {
+	struct work_struct	work;
+	struct mlx4_ib_dev     *dev;
+	int			slave;
+	int			do_init;
+	u8			port;
+
+};
+
+struct mlx4_ib_tun_tx_buf {
+	struct mlx4_ib_buf buf;
+	struct ib_ah *ah;
+};
+
+struct mlx4_ib_demux_pv_qp {
+	struct ib_qp *qp;
+	enum ib_qp_type proxy_qpt;
+	struct mlx4_ib_buf *ring;
+	struct mlx4_ib_tun_tx_buf *tx_ring;
+	spinlock_t tx_lock;
+	unsigned tx_ix_head;
+	unsigned tx_ix_tail;
+};
+
+enum mlx4_ib_demux_pv_state {
+	DEMUX_PV_STATE_DOWN,
+	DEMUX_PV_STATE_STARTING,
+	DEMUX_PV_STATE_ACTIVE,
+	DEMUX_PV_STATE_DOWNING,
+};
+
+struct mlx4_ib_demux_pv_ctx {
+	int port;
+	int slave;
+	enum mlx4_ib_demux_pv_state state;
+	int has_smi;
+	struct ib_device *ib_dev;
+	struct ib_cq *cq;
+	struct ib_pd *pd;
+	struct ib_mr *mr;
+	struct work_struct work;
+	struct workqueue_struct *wq;
+	struct mlx4_ib_demux_pv_qp qp[2];
+};
+
+struct mlx4_ib_demux_ctx {
+	struct ib_device *ib_dev;
+	int port;
+	struct workqueue_struct *wq;
+	struct workqueue_struct *ud_wq;
+	spinlock_t ud_lock;
+	__be64 subnet_prefix;
+	__be64 guid_cache[128];
+	struct mlx4_ib_dev *dev;
+	/* the following lock protects both mcg_table and mcg_mgid0_list */
+	struct mutex		mcg_table_lock;
+	struct rb_root		mcg_table;
+	struct list_head	mcg_mgid0_list;
+	struct workqueue_struct	*mcg_wq;
+	struct mlx4_ib_demux_pv_ctx **tun;
+	atomic_t tid;
+	int    flushing; /* flushing the work queue */
+};
+
+struct mlx4_ib_sriov {
+	struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
+	struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
+	/* when using this spinlock you should use "irq" because
+	 * it may be called from interrupt context.*/
+	spinlock_t going_down_lock;
+	int is_going_down;
+
+	struct mlx4_sriov_alias_guid alias_guid;
+
+	/* CM paravirtualization fields */
+	struct list_head cm_list;
+	spinlock_t id_map_lock;
+	struct rb_root sl_id_map;
+	struct idr pv_id_table;
+};
+
 struct mlx4_ib_iboe {
 	spinlock_t		lock;
 	struct net_device      *netdevs[MLX4_MAX_PORTS];
@@ -203,6 +420,42 @@ struct mlx4_ib_iboe {
 	union ib_gid		gid_table[MLX4_MAX_PORTS][128];
 };
 
+struct pkey_mgt {
+	u8			virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
+	u16			phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
+	struct list_head	pkey_port_list[MLX4_MFUNC_MAX];
+	struct kobject	       *device_parent[MLX4_MFUNC_MAX];
+};
+
+struct mlx4_ib_iov_sysfs_attr {
+	void *ctx;
+	struct kobject *kobj;
+	unsigned long data;
+	u32 entry_num;
+	char name[15];
+	struct device_attribute dentry;
+	struct device *dev;
+};
+
+struct mlx4_ib_iov_sysfs_attr_ar {
+	struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
+};
+
+struct mlx4_ib_iov_port {
+	char name[100];
+	u8 num;
+	struct mlx4_ib_dev *dev;
+	struct list_head list;
+	struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
+	struct ib_port_attr attr;
+	struct kobject	*cur_port;
+	struct kobject	*admin_alias_parent;
+	struct kobject	*gids_parent;
+	struct kobject	*pkeys_parent;
+	struct kobject	*mcgs_parent;
+	struct mlx4_ib_iov_sysfs_attr mcg_dentry;
+};
+
 struct mlx4_ib_dev {
 	struct ib_device	ib_dev;
 	struct mlx4_dev	       *dev;
@@ -216,6 +469,7 @@ struct mlx4_ib_dev {
 	struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
 	struct ib_ah	       *sm_ah[MLX4_MAX_PORTS];
 	spinlock_t		sm_lock;
+	struct mlx4_ib_sriov	sriov;
 
 	struct mutex		cap_mask_mutex;
 	bool			ib_active;
@@ -223,6 +477,11 @@ struct mlx4_ib_dev {
 	int			counters[MLX4_MAX_PORTS];
 	int		       *eq_table;
 	int			eq_added;
+	struct kobject	       *iov_parent;
+	struct kobject	       *ports_parent;
+	struct kobject	       *dev_ports_parent[MLX4_MFUNC_MAX];
+	struct mlx4_ib_iov_port	iov_ports[MLX4_MAX_PORTS];
+	struct pkey_mgt		pkeys;
 };
 
 struct ib_event_work {
@@ -231,6 +490,13 @@ struct ib_event_work {
 	struct mlx4_eqe		ib_eqe;
 };
 
+struct mlx4_ib_qp_tunnel_init_attr {
+	struct ib_qp_init_attr init_attr;
+	int slave;
+	enum ib_qp_type proxy_qp_type;
+	u8 port;
+};
+
 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
 {
 	return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
@@ -300,6 +566,9 @@ static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
 	return container_of(ibah, struct mlx4_ib_ah, ibah);
 }
 
+int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
+void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
+
 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
 			struct mlx4_db *db);
 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
@@ -356,7 +625,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 		      struct ib_recv_wr **bad_wr);
 
-int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
+int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
 		 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
 		 void *in_mad, void *response_mad);
 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
@@ -371,6 +640,13 @@ int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
 			 u64 iova);
 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
+int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
+			 struct ib_port_attr *props, int netw_view);
+int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
+			 u16 *pkey, int netw_view);
+
+int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
+			union ib_gid *gid, int netw_view);
 
 int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
 			u8 *mac, int *is_mcast, u8 port);
@@ -385,10 +661,69 @@ static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
 	return !!(ah->av.ib.g_slid & 0x80);
 }
 
+int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
+void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
+void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
+int mlx4_ib_mcg_init(void);
+void mlx4_ib_mcg_destroy(void);
+
+int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
+
+int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
+				  struct ib_sa_mad *sa_mad);
+int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
+			      struct ib_sa_mad *mad);
+
 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 		   union ib_gid *gid);
 
 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
 			    enum ib_event_type type);
 
+void mlx4_ib_tunnels_update_work(struct work_struct *work);
+
+int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
+			  enum ib_qp_type qpt, struct ib_wc *wc,
+			  struct ib_grh *grh, struct ib_mad *mad);
+int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
+			 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
+			 u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad);
+__be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
+
+int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
+		struct ib_mad *mad);
+
+int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
+		struct ib_mad *mad);
+
+void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
+void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
+
+/* alias guid support */
+void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
+int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
+void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
+void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
+
+void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
+					  int block_num,
+					  u8 port_num, u8 *p_data);
+
+void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
+					 int block_num, u8 port_num,
+					 u8 *p_data);
+
+int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
+			    struct attribute *attr);
+void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
+			     struct attribute *attr);
+ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
+
+int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
+
+void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
+
+__be64 mlx4_ib_gen_node_guid(void);
+
+
 #endif /* MLX4_IB_H */
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index a6d8ea060ea..19e0637220b 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -38,6 +38,7 @@
 #include <rdma/ib_cache.h>
 #include <rdma/ib_pack.h>
 #include <rdma/ib_addr.h>
+#include <rdma/ib_mad.h>
 
 #include <linux/mlx4/qp.h>
 
@@ -110,16 +111,62 @@ static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp)
 	return container_of(mqp, struct mlx4_ib_sqp, qp);
 }
 
+static int is_tunnel_qp(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
+{
+	if (!mlx4_is_master(dev->dev))
+		return 0;
+
+	return qp->mqp.qpn >= dev->dev->phys_caps.base_tunnel_sqpn &&
+	       qp->mqp.qpn < dev->dev->phys_caps.base_tunnel_sqpn +
+		8 * MLX4_MFUNC_MAX;
+}
+
 static int is_sqp(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
 {
-	return qp->mqp.qpn >= dev->dev->caps.sqp_start &&
-		qp->mqp.qpn <= dev->dev->caps.sqp_start + 3;
+	int proxy_sqp = 0;
+	int real_sqp = 0;
+	int i;
+	/* PPF or Native -- real SQP */
+	real_sqp = ((mlx4_is_master(dev->dev) || !mlx4_is_mfunc(dev->dev)) &&
+		    qp->mqp.qpn >= dev->dev->phys_caps.base_sqpn &&
+		    qp->mqp.qpn <= dev->dev->phys_caps.base_sqpn + 3);
+	if (real_sqp)
+		return 1;
+	/* VF or PF -- proxy SQP */
+	if (mlx4_is_mfunc(dev->dev)) {
+		for (i = 0; i < dev->dev->caps.num_ports; i++) {
+			if (qp->mqp.qpn == dev->dev->caps.qp0_proxy[i] ||
+			    qp->mqp.qpn == dev->dev->caps.qp1_proxy[i]) {
+				proxy_sqp = 1;
+				break;
+			}
+		}
+	}
+	return proxy_sqp;
 }
 
+/* used for INIT/CLOSE port logic */
 static int is_qp0(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
 {
-	return qp->mqp.qpn >= dev->dev->caps.sqp_start &&
-		qp->mqp.qpn <= dev->dev->caps.sqp_start + 1;
+	int proxy_qp0 = 0;
+	int real_qp0 = 0;
+	int i;
+	/* PPF or Native -- real QP0 */
+	real_qp0 = ((mlx4_is_master(dev->dev) || !mlx4_is_mfunc(dev->dev)) &&
+		    qp->mqp.qpn >= dev->dev->phys_caps.base_sqpn &&
+		    qp->mqp.qpn <= dev->dev->phys_caps.base_sqpn + 1);
+	if (real_qp0)
+		return 1;
+	/* VF or PF -- proxy QP0 */
+	if (mlx4_is_mfunc(dev->dev)) {
+		for (i = 0; i < dev->dev->caps.num_ports; i++) {
+			if (qp->mqp.qpn == dev->dev->caps.qp0_proxy[i]) {
+				proxy_qp0 = 1;
+				break;
+			}
+		}
+	}
+	return proxy_qp0;
 }
 
 static void *get_wqe(struct mlx4_ib_qp *qp, int offset)
@@ -270,7 +317,7 @@ static void mlx4_ib_qp_event(struct mlx4_qp *qp, enum mlx4_event type)
 	}
 }
 
-static int send_wqe_overhead(enum ib_qp_type type, u32 flags)
+static int send_wqe_overhead(enum mlx4_ib_qp_type type, u32 flags)
 {
 	/*
 	 * UD WQEs must have a datagram segment.
@@ -279,19 +326,29 @@ static int send_wqe_overhead(enum ib_qp_type type, u32 flags)
 	 * header and space for the ICRC).
 	 */
 	switch (type) {
-	case IB_QPT_UD:
+	case MLX4_IB_QPT_UD:
 		return sizeof (struct mlx4_wqe_ctrl_seg) +
 			sizeof (struct mlx4_wqe_datagram_seg) +
 			((flags & MLX4_IB_QP_LSO) ? MLX4_IB_LSO_HEADER_SPARE : 0);
-	case IB_QPT_UC:
+	case MLX4_IB_QPT_PROXY_SMI_OWNER:
+	case MLX4_IB_QPT_PROXY_SMI:
+	case MLX4_IB_QPT_PROXY_GSI:
+		return sizeof (struct mlx4_wqe_ctrl_seg) +
+			sizeof (struct mlx4_wqe_datagram_seg) + 64;
+	case MLX4_IB_QPT_TUN_SMI_OWNER:
+	case MLX4_IB_QPT_TUN_GSI:
+		return sizeof (struct mlx4_wqe_ctrl_seg) +
+			sizeof (struct mlx4_wqe_datagram_seg);
+
+	case MLX4_IB_QPT_UC:
 		return sizeof (struct mlx4_wqe_ctrl_seg) +
 			sizeof (struct mlx4_wqe_raddr_seg);
-	case IB_QPT_RC:
+	case MLX4_IB_QPT_RC:
 		return sizeof (struct mlx4_wqe_ctrl_seg) +
 			sizeof (struct mlx4_wqe_atomic_seg) +
 			sizeof (struct mlx4_wqe_raddr_seg);
-	case IB_QPT_SMI:
-	case IB_QPT_GSI:
+	case MLX4_IB_QPT_SMI:
+	case MLX4_IB_QPT_GSI:
 		return sizeof (struct mlx4_wqe_ctrl_seg) +
 			ALIGN(MLX4_IB_UD_HEADER_SIZE +
 			      DIV_ROUND_UP(MLX4_IB_UD_HEADER_SIZE,
@@ -345,7 +402,7 @@ static int set_rq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
 }
 
 static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
-			      enum ib_qp_type type, struct mlx4_ib_qp *qp)
+			      enum mlx4_ib_qp_type type, struct mlx4_ib_qp *qp)
 {
 	int s;
 
@@ -360,7 +417,8 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
 	 * For MLX transport we need 2 extra S/G entries:
 	 * one for the header and one for the checksum at the end
 	 */
-	if ((type == IB_QPT_SMI || type == IB_QPT_GSI) &&
+	if ((type == MLX4_IB_QPT_SMI || type == MLX4_IB_QPT_GSI ||
+	     type & (MLX4_IB_QPT_PROXY_SMI_OWNER | MLX4_IB_QPT_TUN_SMI_OWNER)) &&
 	    cap->max_send_sge + 2 > dev->dev->caps.max_sq_sg)
 		return -EINVAL;
 
@@ -404,7 +462,9 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
 	 */
 	if (dev->dev->caps.fw_ver >= MLX4_FW_VER_WQE_CTRL_NEC &&
 	    qp->sq_signal_bits && BITS_PER_LONG == 64 &&
-	    type != IB_QPT_SMI && type != IB_QPT_GSI)
+	    type != MLX4_IB_QPT_SMI && type != MLX4_IB_QPT_GSI &&
+	    !(type & (MLX4_IB_QPT_PROXY_SMI_OWNER | MLX4_IB_QPT_PROXY_SMI |
+		      MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER)))
 		qp->sq.wqe_shift = ilog2(64);
 	else
 		qp->sq.wqe_shift = ilog2(roundup_pow_of_two(s));
@@ -476,6 +536,54 @@ static int set_user_sq_size(struct mlx4_ib_dev *dev,
 	return 0;
 }
 
+static int alloc_proxy_bufs(struct ib_device *dev, struct mlx4_ib_qp *qp)
+{
+	int i;
+
+	qp->sqp_proxy_rcv =
+		kmalloc(sizeof (struct mlx4_ib_buf) * qp->rq.wqe_cnt,
+			GFP_KERNEL);
+	if (!qp->sqp_proxy_rcv)
+		return -ENOMEM;
+	for (i = 0; i < qp->rq.wqe_cnt; i++) {
+		qp->sqp_proxy_rcv[i].addr =
+			kmalloc(sizeof (struct mlx4_ib_proxy_sqp_hdr),
+				GFP_KERNEL);
+		if (!qp->sqp_proxy_rcv[i].addr)
+			goto err;
+		qp->sqp_proxy_rcv[i].map =
+			ib_dma_map_single(dev, qp->sqp_proxy_rcv[i].addr,
+					  sizeof (struct mlx4_ib_proxy_sqp_hdr),
+					  DMA_FROM_DEVICE);
+	}
+	return 0;
+
+err:
+	while (i > 0) {
+		--i;
+		ib_dma_unmap_single(dev, qp->sqp_proxy_rcv[i].map,
+				    sizeof (struct mlx4_ib_proxy_sqp_hdr),
+				    DMA_FROM_DEVICE);
+		kfree(qp->sqp_proxy_rcv[i].addr);
+	}
+	kfree(qp->sqp_proxy_rcv);
+	qp->sqp_proxy_rcv = NULL;
+	return -ENOMEM;
+}
+
+static void free_proxy_bufs(struct ib_device *dev, struct mlx4_ib_qp *qp)
+{
+	int i;
+
+	for (i = 0; i < qp->rq.wqe_cnt; i++) {
+		ib_dma_unmap_single(dev, qp->sqp_proxy_rcv[i].map,
+				    sizeof (struct mlx4_ib_proxy_sqp_hdr),
+				    DMA_FROM_DEVICE);
+		kfree(qp->sqp_proxy_rcv[i].addr);
+	}
+	kfree(qp->sqp_proxy_rcv);
+}
+
 static int qp_has_rq(struct ib_qp_init_attr *attr)
 {
 	if (attr->qp_type == IB_QPT_XRC_INI || attr->qp_type == IB_QPT_XRC_TGT)
@@ -486,10 +594,67 @@ static int qp_has_rq(struct ib_qp_init_attr *attr)
 
 static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 			    struct ib_qp_init_attr *init_attr,
-			    struct ib_udata *udata, int sqpn, struct mlx4_ib_qp *qp)
+			    struct ib_udata *udata, int sqpn, struct mlx4_ib_qp **caller_qp)
 {
 	int qpn;
 	int err;
+	struct mlx4_ib_sqp *sqp;
+	struct mlx4_ib_qp *qp;
+	enum mlx4_ib_qp_type qp_type = (enum mlx4_ib_qp_type) init_attr->qp_type;
+
+	/* When tunneling special qps, we use a plain UD qp */
+	if (sqpn) {
+		if (mlx4_is_mfunc(dev->dev) &&
+		    (!mlx4_is_master(dev->dev) ||
+		     !(init_attr->create_flags & MLX4_IB_SRIOV_SQP))) {
+			if (init_attr->qp_type == IB_QPT_GSI)
+				qp_type = MLX4_IB_QPT_PROXY_GSI;
+			else if (mlx4_is_master(dev->dev))
+				qp_type = MLX4_IB_QPT_PROXY_SMI_OWNER;
+			else
+				qp_type = MLX4_IB_QPT_PROXY_SMI;
+		}
+		qpn = sqpn;
+		/* add extra sg entry for tunneling */
+		init_attr->cap.max_recv_sge++;
+	} else if (init_attr->create_flags & MLX4_IB_SRIOV_TUNNEL_QP) {
+		struct mlx4_ib_qp_tunnel_init_attr *tnl_init =
+			container_of(init_attr,
+				     struct mlx4_ib_qp_tunnel_init_attr, init_attr);
+		if ((tnl_init->proxy_qp_type != IB_QPT_SMI &&
+		     tnl_init->proxy_qp_type != IB_QPT_GSI)   ||
+		    !mlx4_is_master(dev->dev))
+			return -EINVAL;
+		if (tnl_init->proxy_qp_type == IB_QPT_GSI)
+			qp_type = MLX4_IB_QPT_TUN_GSI;
+		else if (tnl_init->slave == mlx4_master_func_num(dev->dev))
+			qp_type = MLX4_IB_QPT_TUN_SMI_OWNER;
+		else
+			qp_type = MLX4_IB_QPT_TUN_SMI;
+		/* we are definitely in the PPF here, since we are creating
+		 * tunnel QPs. base_tunnel_sqpn is therefore valid. */
+		qpn = dev->dev->phys_caps.base_tunnel_sqpn + 8 * tnl_init->slave
+			+ tnl_init->proxy_qp_type * 2 + tnl_init->port - 1;
+		sqpn = qpn;
+	}
+
+	if (!*caller_qp) {
+		if (qp_type == MLX4_IB_QPT_SMI || qp_type == MLX4_IB_QPT_GSI ||
+		    (qp_type & (MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_SMI_OWNER |
+				MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER))) {
+			sqp = kzalloc(sizeof (struct mlx4_ib_sqp), GFP_KERNEL);
+			if (!sqp)
+				return -ENOMEM;
+			qp = &sqp->qp;
+		} else {
+			qp = kzalloc(sizeof (struct mlx4_ib_qp), GFP_KERNEL);
+			if (!qp)
+				return -ENOMEM;
+		}
+	} else
+		qp = *caller_qp;
+
+	qp->mlx4_ib_qp_type = qp_type;
 
 	mutex_init(&qp->mutex);
 	spin_lock_init(&qp->sq.lock);
@@ -550,7 +715,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 		if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO)
 			qp->flags |= MLX4_IB_QP_LSO;
 
-		err = set_kernel_sq_size(dev, &init_attr->cap, init_attr->qp_type, qp);
+		err = set_kernel_sq_size(dev, &init_attr->cap, qp_type, qp);
 		if (err)
 			goto err;
 
@@ -586,7 +751,13 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 	}
 
 	if (sqpn) {
-		qpn = sqpn;
+		if (qp->mlx4_ib_qp_type & (MLX4_IB_QPT_PROXY_SMI_OWNER |
+		    MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI)) {
+			if (alloc_proxy_bufs(pd->device, qp)) {
+				err = -ENOMEM;
+				goto err_wrid;
+			}
+		}
 	} else {
 		/* Raw packet QPNs must be aligned to 8 bits. If not, the WQE
 		 * BlueFlame setup flow wrongly causes VLAN insertion. */
@@ -595,7 +766,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 		else
 			err = mlx4_qp_reserve_range(dev->dev, 1, 1, &qpn);
 		if (err)
-			goto err_wrid;
+			goto err_proxy;
 	}
 
 	err = mlx4_qp_alloc(dev->dev, qpn, &qp->mqp);
@@ -613,13 +784,16 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 	qp->doorbell_qpn = swab32(qp->mqp.qpn << 8);
 
 	qp->mqp.event = mlx4_ib_qp_event;
-
+	if (!*caller_qp)
+		*caller_qp = qp;
 	return 0;
 
 err_qpn:
 	if (!sqpn)
 		mlx4_qp_release_range(dev->dev, qpn, 1);
-
+err_proxy:
+	if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_GSI)
+		free_proxy_bufs(pd->device, qp);
 err_wrid:
 	if (pd->uobject) {
 		if (qp_has_rq(init_attr))
@@ -643,6 +817,8 @@ err_db:
 		mlx4_db_free(dev->dev, &qp->db);
 
 err:
+	if (!*caller_qp)
+		kfree(qp);
 	return err;
 }
 
@@ -755,7 +931,7 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
 
 	mlx4_qp_free(dev->dev, &qp->mqp);
 
-	if (!is_sqp(dev, qp))
+	if (!is_sqp(dev, qp) && !is_tunnel_qp(dev, qp))
 		mlx4_qp_release_range(dev->dev, qp->mqp.qpn, 1);
 
 	mlx4_mtt_cleanup(dev->dev, &qp->mtt);
@@ -768,6 +944,9 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
 	} else {
 		kfree(qp->sq.wrid);
 		kfree(qp->rq.wrid);
+		if (qp->mlx4_ib_qp_type & (MLX4_IB_QPT_PROXY_SMI_OWNER |
+		    MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI))
+			free_proxy_bufs(&dev->ib_dev, qp);
 		mlx4_buf_free(dev->dev, qp->buf_size, &qp->buf);
 		if (qp->rq.wqe_cnt)
 			mlx4_db_free(dev->dev, &qp->db);
@@ -776,25 +955,46 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
 	del_gid_entries(qp);
 }
 
+static u32 get_sqp_num(struct mlx4_ib_dev *dev, struct ib_qp_init_attr *attr)
+{
+	/* Native or PPF */
+	if (!mlx4_is_mfunc(dev->dev) ||
+	    (mlx4_is_master(dev->dev) &&
+	     attr->create_flags & MLX4_IB_SRIOV_SQP)) {
+		return  dev->dev->phys_caps.base_sqpn +
+			(attr->qp_type == IB_QPT_SMI ? 0 : 2) +
+			attr->port_num - 1;
+	}
+	/* PF or VF -- creating proxies */
+	if (attr->qp_type == IB_QPT_SMI)
+		return dev->dev->caps.qp0_proxy[attr->port_num - 1];
+	else
+		return dev->dev->caps.qp1_proxy[attr->port_num - 1];
+}
+
 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 				struct ib_qp_init_attr *init_attr,
 				struct ib_udata *udata)
 {
-	struct mlx4_ib_sqp *sqp;
-	struct mlx4_ib_qp *qp;
+	struct mlx4_ib_qp *qp = NULL;
 	int err;
 	u16 xrcdn = 0;
 
 	/*
-	 * We only support LSO and multicast loopback blocking, and
-	 * only for kernel UD QPs.
+	 * We only support LSO, vendor flag1, and multicast loopback blocking,
+	 * and only for kernel UD QPs.
 	 */
-	if (init_attr->create_flags & ~(IB_QP_CREATE_IPOIB_UD_LSO |
-					IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK))
+	if (init_attr->create_flags & ~(MLX4_IB_QP_LSO |
+					MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK |
+					MLX4_IB_SRIOV_TUNNEL_QP | MLX4_IB_SRIOV_SQP))
 		return ERR_PTR(-EINVAL);
 
 	if (init_attr->create_flags &&
-	    (udata || init_attr->qp_type != IB_QPT_UD))
+	    (udata ||
+	     ((init_attr->create_flags & ~MLX4_IB_SRIOV_SQP) &&
+	      init_attr->qp_type != IB_QPT_UD) ||
+	     ((init_attr->create_flags & MLX4_IB_SRIOV_SQP) &&
+	      init_attr->qp_type > IB_QPT_GSI)))
 		return ERR_PTR(-EINVAL);
 
 	switch (init_attr->qp_type) {
@@ -810,18 +1010,17 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 		/* fall through */
 	case IB_QPT_RC:
 	case IB_QPT_UC:
-	case IB_QPT_UD:
 	case IB_QPT_RAW_PACKET:
-	{
 		qp = kzalloc(sizeof *qp, GFP_KERNEL);
 		if (!qp)
 			return ERR_PTR(-ENOMEM);
-
-		err = create_qp_common(to_mdev(pd->device), pd, init_attr, udata, 0, qp);
-		if (err) {
-			kfree(qp);
+		/* fall through */
+	case IB_QPT_UD:
+	{
+		err = create_qp_common(to_mdev(pd->device), pd, init_attr,
+				       udata, 0, &qp);
+		if (err)
 			return ERR_PTR(err);
-		}
 
 		qp->ibqp.qp_num = qp->mqp.qpn;
 		qp->xrcdn = xrcdn;
@@ -835,21 +1034,11 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 		if (udata)
 			return ERR_PTR(-EINVAL);
 
-		sqp = kzalloc(sizeof *sqp, GFP_KERNEL);
-		if (!sqp)
-			return ERR_PTR(-ENOMEM);
-
-		qp = &sqp->qp;
-
 		err = create_qp_common(to_mdev(pd->device), pd, init_attr, udata,
-				       to_mdev(pd->device)->dev->caps.sqp_start +
-				       (init_attr->qp_type == IB_QPT_SMI ? 0 : 2) +
-				       init_attr->port_num - 1,
-				       qp);
-		if (err) {
-			kfree(sqp);
+				       get_sqp_num(to_mdev(pd->device), init_attr),
+				       &qp);
+		if (err)
 			return ERR_PTR(err);
-		}
 
 		qp->port	= init_attr->port_num;
 		qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
@@ -884,18 +1073,27 @@ int mlx4_ib_destroy_qp(struct ib_qp *qp)
 	return 0;
 }
 
-static int to_mlx4_st(enum ib_qp_type type)
+static int to_mlx4_st(struct mlx4_ib_dev *dev, enum mlx4_ib_qp_type type)
 {
 	switch (type) {
-	case IB_QPT_RC:		return MLX4_QP_ST_RC;
-	case IB_QPT_UC:		return MLX4_QP_ST_UC;
-	case IB_QPT_UD:		return MLX4_QP_ST_UD;
-	case IB_QPT_XRC_INI:
-	case IB_QPT_XRC_TGT:	return MLX4_QP_ST_XRC;
-	case IB_QPT_SMI:
-	case IB_QPT_GSI:
-	case IB_QPT_RAW_PACKET:	return MLX4_QP_ST_MLX;
-	default:		return -1;
+	case MLX4_IB_QPT_RC:		return MLX4_QP_ST_RC;
+	case MLX4_IB_QPT_UC:		return MLX4_QP_ST_UC;
+	case MLX4_IB_QPT_UD:		return MLX4_QP_ST_UD;
+	case MLX4_IB_QPT_XRC_INI:
+	case MLX4_IB_QPT_XRC_TGT:	return MLX4_QP_ST_XRC;
+	case MLX4_IB_QPT_SMI:
+	case MLX4_IB_QPT_GSI:
+	case MLX4_IB_QPT_RAW_PACKET:	return MLX4_QP_ST_MLX;
+
+	case MLX4_IB_QPT_PROXY_SMI_OWNER:
+	case MLX4_IB_QPT_TUN_SMI_OWNER:	return (mlx4_is_mfunc(dev->dev) ?
+						MLX4_QP_ST_MLX : -1);
+	case MLX4_IB_QPT_PROXY_SMI:
+	case MLX4_IB_QPT_TUN_SMI:
+	case MLX4_IB_QPT_PROXY_GSI:
+	case MLX4_IB_QPT_TUN_GSI:	return (mlx4_is_mfunc(dev->dev) ?
+						MLX4_QP_ST_UD : -1);
+	default:			return -1;
 	}
 }
 
@@ -1043,7 +1241,7 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
 		return -ENOMEM;
 
 	context->flags = cpu_to_be32((to_mlx4_state(new_state) << 28) |
-				     (to_mlx4_st(ibqp->qp_type) << 16));
+				     (to_mlx4_st(dev, qp->mlx4_ib_qp_type) << 16));
 
 	if (!(attr_mask & IB_QP_PATH_MIG_STATE))
 		context->flags |= cpu_to_be32(MLX4_QP_PM_MIGRATED << 11);
@@ -1121,13 +1319,16 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
 	}
 
 	if (attr_mask & IB_QP_PKEY_INDEX) {
+		if (qp->mlx4_ib_qp_type & MLX4_IB_QPT_ANY_SRIOV)
+			context->pri_path.disable_pkey_check = 0x40;
 		context->pri_path.pkey_index = attr->pkey_index;
 		optpar |= MLX4_QP_OPTPAR_PKEY_INDEX;
 	}
 
 	if (attr_mask & IB_QP_AV) {
 		if (mlx4_set_path(dev, &attr->ah_attr, &context->pri_path,
-				  attr_mask & IB_QP_PORT ? attr->port_num : qp->port))
+				  attr_mask & IB_QP_PORT ?
+				  attr->port_num : qp->port))
 			goto out;
 
 		optpar |= (MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH |
@@ -1210,8 +1411,24 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
 	if (attr_mask & IB_QP_RQ_PSN)
 		context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn);
 
+	/* proxy and tunnel qp qkeys will be changed in modify-qp wrappers */
 	if (attr_mask & IB_QP_QKEY) {
-		context->qkey = cpu_to_be32(attr->qkey);
+		if (qp->mlx4_ib_qp_type &
+		    (MLX4_IB_QPT_PROXY_SMI_OWNER | MLX4_IB_QPT_TUN_SMI_OWNER))
+			context->qkey = cpu_to_be32(IB_QP_SET_QKEY);
+		else {
+			if (mlx4_is_mfunc(dev->dev) &&
+			    !(qp->mlx4_ib_qp_type & MLX4_IB_QPT_ANY_SRIOV) &&
+			    (attr->qkey & MLX4_RESERVED_QKEY_MASK) ==
+			    MLX4_RESERVED_QKEY_BASE) {
+				pr_err("Cannot use reserved QKEY"
+				       " 0x%x (range 0xffff0000..0xffffffff"
+				       " is reserved)\n", attr->qkey);
+				err = -EINVAL;
+				goto out;
+			}
+			context->qkey = cpu_to_be32(attr->qkey);
+		}
 		optpar |= MLX4_QP_OPTPAR_Q_KEY;
 	}
 
@@ -1227,10 +1444,17 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
 	     ibqp->qp_type == IB_QPT_UD ||
 	     ibqp->qp_type == IB_QPT_RAW_PACKET)) {
 		context->pri_path.sched_queue = (qp->port - 1) << 6;
-		if (is_qp0(dev, qp))
+		if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_SMI ||
+		    qp->mlx4_ib_qp_type &
+		    (MLX4_IB_QPT_PROXY_SMI_OWNER | MLX4_IB_QPT_TUN_SMI_OWNER)) {
 			context->pri_path.sched_queue |= MLX4_IB_DEFAULT_QP0_SCHED_QUEUE;
-		else
+			if (qp->mlx4_ib_qp_type != MLX4_IB_QPT_SMI)
+				context->pri_path.fl = 0x80;
+		} else {
+			if (qp->mlx4_ib_qp_type & MLX4_IB_QPT_ANY_SRIOV)
+				context->pri_path.fl = 0x80;
 			context->pri_path.sched_queue |= MLX4_IB_DEFAULT_SCHED_QUEUE;
+		}
 	}
 
 	if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD	&&
@@ -1346,7 +1570,7 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	}
 
 	if ((attr_mask & IB_QP_PORT) &&
-	    (attr->port_num == 0 || attr->port_num > dev->dev->caps.num_ports)) {
+	    (attr->port_num == 0 || attr->port_num > dev->num_ports)) {
 		pr_debug("qpn 0x%x: invalid port number (%d) specified "
 			 "for transition %d to %d. qp_type %d\n",
 			 ibqp->qp_num, attr->port_num, cur_state,
@@ -1400,6 +1624,114 @@ out:
 	return err;
 }
 
+static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp,
+				  struct ib_send_wr *wr,
+				  void *wqe, unsigned *mlx_seg_len)
+{
+	struct mlx4_ib_dev *mdev = to_mdev(sqp->qp.ibqp.device);
+	struct ib_device *ib_dev = &mdev->ib_dev;
+	struct mlx4_wqe_mlx_seg *mlx = wqe;
+	struct mlx4_wqe_inline_seg *inl = wqe + sizeof *mlx;
+	struct mlx4_ib_ah *ah = to_mah(wr->wr.ud.ah);
+	u16 pkey;
+	u32 qkey;
+	int send_size;
+	int header_size;
+	int spc;
+	int i;
+
+	if (wr->opcode != IB_WR_SEND)
+		return -EINVAL;
+
+	send_size = 0;
+
+	for (i = 0; i < wr->num_sge; ++i)
+		send_size += wr->sg_list[i].length;
+
+	/* for proxy-qp0 sends, need to add in size of tunnel header */
+	/* for tunnel-qp0 sends, tunnel header is already in s/g list */
+	if (sqp->qp.mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_SMI_OWNER)
+		send_size += sizeof (struct mlx4_ib_tunnel_header);
+
+	ib_ud_header_init(send_size, 1, 0, 0, 0, 0, &sqp->ud_header);
+
+	if (sqp->qp.mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_SMI_OWNER) {
+		sqp->ud_header.lrh.service_level =
+			be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
+		sqp->ud_header.lrh.destination_lid =
+			cpu_to_be16(ah->av.ib.g_slid & 0x7f);
+		sqp->ud_header.lrh.source_lid =
+			cpu_to_be16(ah->av.ib.g_slid & 0x7f);
+	}
+
+	mlx->flags &= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
+
+	/* force loopback */
+	mlx->flags |= cpu_to_be32(MLX4_WQE_MLX_VL15 | 0x1 | MLX4_WQE_MLX_SLR);
+	mlx->rlid = sqp->ud_header.lrh.destination_lid;
+
+	sqp->ud_header.lrh.virtual_lane    = 0;
+	sqp->ud_header.bth.solicited_event = !!(wr->send_flags & IB_SEND_SOLICITED);
+	ib_get_cached_pkey(ib_dev, sqp->qp.port, 0, &pkey);
+	sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
+	if (sqp->qp.mlx4_ib_qp_type == MLX4_IB_QPT_TUN_SMI_OWNER)
+		sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->wr.ud.remote_qpn);
+	else
+		sqp->ud_header.bth.destination_qpn =
+			cpu_to_be32(mdev->dev->caps.qp0_tunnel[sqp->qp.port - 1]);
+
+	sqp->ud_header.bth.psn = cpu_to_be32((sqp->send_psn++) & ((1 << 24) - 1));
+	if (mlx4_get_parav_qkey(mdev->dev, sqp->qp.mqp.qpn, &qkey))
+		return -EINVAL;
+	sqp->ud_header.deth.qkey = cpu_to_be32(qkey);
+	sqp->ud_header.deth.source_qpn = cpu_to_be32(sqp->qp.mqp.qpn);
+
+	sqp->ud_header.bth.opcode        = IB_OPCODE_UD_SEND_ONLY;
+	sqp->ud_header.immediate_present = 0;
+
+	header_size = ib_ud_header_pack(&sqp->ud_header, sqp->header_buf);
+
+	/*
+	 * Inline data segments may not cross a 64 byte boundary.  If
+	 * our UD header is bigger than the space available up to the
+	 * next 64 byte boundary in the WQE, use two inline data
+	 * segments to hold the UD header.
+	 */
+	spc = MLX4_INLINE_ALIGN -
+	      ((unsigned long) (inl + 1) & (MLX4_INLINE_ALIGN - 1));
+	if (header_size <= spc) {
+		inl->byte_count = cpu_to_be32(1 << 31 | header_size);
+		memcpy(inl + 1, sqp->header_buf, header_size);
+		i = 1;
+	} else {
+		inl->byte_count = cpu_to_be32(1 << 31 | spc);
+		memcpy(inl + 1, sqp->header_buf, spc);
+
+		inl = (void *) (inl + 1) + spc;
+		memcpy(inl + 1, sqp->header_buf + spc, header_size - spc);
+		/*
+		 * Need a barrier here to make sure all the data is
+		 * visible before the byte_count field is set.
+		 * Otherwise the HCA prefetcher could grab the 64-byte
+		 * chunk with this inline segment and get a valid (!=
+		 * 0xffffffff) byte count but stale data, and end up
+		 * generating a packet with bad headers.
+		 *
+		 * The first inline segment's byte_count field doesn't
+		 * need a barrier, because it comes after a
+		 * control/MLX segment and therefore is at an offset
+		 * of 16 mod 64.
+		 */
+		wmb();
+		inl->byte_count = cpu_to_be32(1 << 31 | (header_size - spc));
+		i = 2;
+	}
+
+	*mlx_seg_len =
+	ALIGN(i * sizeof (struct mlx4_wqe_inline_seg) + header_size, 16);
+	return 0;
+}
+
 static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 			    void *wqe, unsigned *mlx_seg_len)
 {
@@ -1407,6 +1739,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 	struct mlx4_wqe_mlx_seg *mlx = wqe;
 	struct mlx4_wqe_inline_seg *inl = wqe + sizeof *mlx;
 	struct mlx4_ib_ah *ah = to_mah(wr->wr.ud.ah);
+	struct net_device *ndev;
 	union ib_gid sgid;
 	u16 pkey;
 	int send_size;
@@ -1417,6 +1750,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 	int is_vlan = 0;
 	int is_grh;
 	u16 vlan;
+	int err = 0;
 
 	send_size = 0;
 	for (i = 0; i < wr->num_sge; ++i)
@@ -1425,8 +1759,24 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 	is_eth = rdma_port_get_link_layer(sqp->qp.ibqp.device, sqp->qp.port) == IB_LINK_LAYER_ETHERNET;
 	is_grh = mlx4_ib_ah_grh_present(ah);
 	if (is_eth) {
-		ib_get_cached_gid(ib_dev, be32_to_cpu(ah->av.ib.port_pd) >> 24,
-				  ah->av.ib.gid_index, &sgid);
+		if (mlx4_is_mfunc(to_mdev(ib_dev)->dev)) {
+			/* When multi-function is enabled, the ib_core gid
+			 * indexes don't necessarily match the hw ones, so
+			 * we must use our own cache */
+			sgid.global.subnet_prefix =
+				to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
+				subnet_prefix;
+			sgid.global.interface_id =
+				to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
+				guid_cache[ah->av.ib.gid_index];
+		} else  {
+			err = ib_get_cached_gid(ib_dev,
+						be32_to_cpu(ah->av.ib.port_pd) >> 24,
+						ah->av.ib.gid_index, &sgid);
+			if (err)
+				return err;
+		}
+
 		vlan = rdma_get_vlan_id(&sgid);
 		is_vlan = vlan < 0x1000;
 	}
@@ -1445,8 +1795,21 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 		sqp->ud_header.grh.flow_label    =
 			ah->av.ib.sl_tclass_flowlabel & cpu_to_be32(0xfffff);
 		sqp->ud_header.grh.hop_limit     = ah->av.ib.hop_limit;
-		ib_get_cached_gid(ib_dev, be32_to_cpu(ah->av.ib.port_pd) >> 24,
-				  ah->av.ib.gid_index, &sqp->ud_header.grh.source_gid);
+		if (mlx4_is_mfunc(to_mdev(ib_dev)->dev)) {
+			/* When multi-function is enabled, the ib_core gid
+			 * indexes don't necessarily match the hw ones, so
+			 * we must use our own cache */
+			sqp->ud_header.grh.source_gid.global.subnet_prefix =
+				to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
+						       subnet_prefix;
+			sqp->ud_header.grh.source_gid.global.interface_id =
+				to_mdev(ib_dev)->sriov.demux[sqp->qp.port - 1].
+					       guid_cache[ah->av.ib.gid_index];
+		} else
+			ib_get_cached_gid(ib_dev,
+					  be32_to_cpu(ah->av.ib.port_pd) >> 24,
+					  ah->av.ib.gid_index,
+					  &sqp->ud_header.grh.source_gid);
 		memcpy(sqp->ud_header.grh.destination_gid.raw,
 		       ah->av.ib.dgid, 16);
 	}
@@ -1458,6 +1821,8 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 					  (sqp->ud_header.lrh.destination_lid ==
 					   IB_LID_PERMISSIVE ? MLX4_WQE_MLX_SLR : 0) |
 					  (sqp->ud_header.lrh.service_level << 8));
+		if (ah->av.ib.port_pd & cpu_to_be32(0x80000000))
+			mlx->flags |= cpu_to_be32(0x1); /* force loopback */
 		mlx->rlid = sqp->ud_header.lrh.destination_lid;
 	}
 
@@ -1483,7 +1848,10 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
 
 		memcpy(sqp->ud_header.eth.dmac_h, ah->av.eth.mac, 6);
 		/* FIXME: cache smac value? */
-		smac = to_mdev(sqp->qp.ibqp.device)->iboe.netdevs[sqp->qp.port - 1]->dev_addr;
+		ndev = to_mdev(sqp->qp.ibqp.device)->iboe.netdevs[sqp->qp.port - 1];
+		if (!ndev)
+			return -ENODEV;
+		smac = ndev->dev_addr;
 		memcpy(sqp->ud_header.eth.smac_h, smac, 6);
 		if (!memcmp(sqp->ud_header.eth.smac_h, sqp->ud_header.eth.dmac_h, 6))
 			mlx->flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK);
@@ -1663,6 +2031,63 @@ static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg,
 	memcpy(dseg->mac, to_mah(wr->wr.ud.ah)->av.eth.mac, 6);
 }
 
+static void set_tunnel_datagram_seg(struct mlx4_ib_dev *dev,
+				    struct mlx4_wqe_datagram_seg *dseg,
+				    struct ib_send_wr *wr, enum ib_qp_type qpt)
+{
+	union mlx4_ext_av *av = &to_mah(wr->wr.ud.ah)->av;
+	struct mlx4_av sqp_av = {0};
+	int port = *((u8 *) &av->ib.port_pd) & 0x3;
+
+	/* force loopback */
+	sqp_av.port_pd = av->ib.port_pd | cpu_to_be32(0x80000000);
+	sqp_av.g_slid = av->ib.g_slid & 0x7f; /* no GRH */
+	sqp_av.sl_tclass_flowlabel = av->ib.sl_tclass_flowlabel &
+			cpu_to_be32(0xf0000000);
+
+	memcpy(dseg->av, &sqp_av, sizeof (struct mlx4_av));
+	/* This function used only for sending on QP1 proxies */
+	dseg->dqpn = cpu_to_be32(dev->dev->caps.qp1_tunnel[port - 1]);
+	/* Use QKEY from the QP context, which is set by master */
+	dseg->qkey = cpu_to_be32(IB_QP_SET_QKEY);
+}
+
+static void build_tunnel_header(struct ib_send_wr *wr, void *wqe, unsigned *mlx_seg_len)
+{
+	struct mlx4_wqe_inline_seg *inl = wqe;
+	struct mlx4_ib_tunnel_header hdr;
+	struct mlx4_ib_ah *ah = to_mah(wr->wr.ud.ah);
+	int spc;
+	int i;
+
+	memcpy(&hdr.av, &ah->av, sizeof hdr.av);
+	hdr.remote_qpn = cpu_to_be32(wr->wr.ud.remote_qpn);
+	hdr.pkey_index = cpu_to_be16(wr->wr.ud.pkey_index);
+	hdr.qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
+
+	spc = MLX4_INLINE_ALIGN -
+		((unsigned long) (inl + 1) & (MLX4_INLINE_ALIGN - 1));
+	if (sizeof (hdr) <= spc) {
+		memcpy(inl + 1, &hdr, sizeof (hdr));
+		wmb();
+		inl->byte_count = cpu_to_be32(1 << 31 | sizeof (hdr));
+		i = 1;
+	} else {
+		memcpy(inl + 1, &hdr, spc);
+		wmb();
+		inl->byte_count = cpu_to_be32(1 << 31 | spc);
+
+		inl = (void *) (inl + 1) + spc;
+		memcpy(inl + 1, (void *) &hdr + spc, sizeof (hdr) - spc);
+		wmb();
+		inl->byte_count = cpu_to_be32(1 << 31 | (sizeof (hdr) - spc));
+		i = 2;
+	}
+
+	*mlx_seg_len =
+		ALIGN(i * sizeof (struct mlx4_wqe_inline_seg) + sizeof (hdr), 16);
+}
+
 static void set_mlx_icrc_seg(void *dseg)
 {
 	u32 *t = dseg;
@@ -1744,6 +2169,13 @@ static __be32 send_ieth(struct ib_send_wr *wr)
 	}
 }
 
+static void add_zero_len_inline(void *wqe)
+{
+	struct mlx4_wqe_inline_seg *inl = wqe;
+	memset(wqe, 0, 16);
+	inl->byte_count = cpu_to_be32(1 << 31);
+}
+
 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 		      struct ib_send_wr **bad_wr)
 {
@@ -1802,9 +2234,9 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 		wqe += sizeof *ctrl;
 		size = sizeof *ctrl / 16;
 
-		switch (ibqp->qp_type) {
-		case IB_QPT_RC:
-		case IB_QPT_UC:
+		switch (qp->mlx4_ib_qp_type) {
+		case MLX4_IB_QPT_RC:
+		case MLX4_IB_QPT_UC:
 			switch (wr->opcode) {
 			case IB_WR_ATOMIC_CMP_AND_SWP:
 			case IB_WR_ATOMIC_FETCH_AND_ADD:
@@ -1865,7 +2297,25 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 			}
 			break;
 
-		case IB_QPT_UD:
+		case MLX4_IB_QPT_TUN_SMI_OWNER:
+			err =  build_sriov_qp0_header(to_msqp(qp), wr, ctrl, &seglen);
+			if (unlikely(err)) {
+				*bad_wr = wr;
+				goto out;
+			}
+			wqe  += seglen;
+			size += seglen / 16;
+			break;
+		case MLX4_IB_QPT_TUN_SMI:
+		case MLX4_IB_QPT_TUN_GSI:
+			/* this is a UD qp used in MAD responses to slaves. */
+			set_datagram_seg(wqe, wr);
+			/* set the forced-loopback bit in the data seg av */
+			*(__be32 *) wqe |= cpu_to_be32(0x80000000);
+			wqe  += sizeof (struct mlx4_wqe_datagram_seg);
+			size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
+			break;
+		case MLX4_IB_QPT_UD:
 			set_datagram_seg(wqe, wr);
 			wqe  += sizeof (struct mlx4_wqe_datagram_seg);
 			size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
@@ -1882,8 +2332,47 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 			}
 			break;
 
-		case IB_QPT_SMI:
-		case IB_QPT_GSI:
+		case MLX4_IB_QPT_PROXY_SMI_OWNER:
+			if (unlikely(!mlx4_is_master(to_mdev(ibqp->device)->dev))) {
+				err = -ENOSYS;
+				*bad_wr = wr;
+				goto out;
+			}
+			err = build_sriov_qp0_header(to_msqp(qp), wr, ctrl, &seglen);
+			if (unlikely(err)) {
+				*bad_wr = wr;
+				goto out;
+			}
+			wqe  += seglen;
+			size += seglen / 16;
+			/* to start tunnel header on a cache-line boundary */
+			add_zero_len_inline(wqe);
+			wqe += 16;
+			size++;
+			build_tunnel_header(wr, wqe, &seglen);
+			wqe  += seglen;
+			size += seglen / 16;
+			break;
+		case MLX4_IB_QPT_PROXY_SMI:
+			/* don't allow QP0 sends on guests */
+			err = -ENOSYS;
+			*bad_wr = wr;
+			goto out;
+		case MLX4_IB_QPT_PROXY_GSI:
+			/* If we are tunneling special qps, this is a UD qp.
+			 * In this case we first add a UD segment targeting
+			 * the tunnel qp, and then add a header with address
+			 * information */
+			set_tunnel_datagram_seg(to_mdev(ibqp->device), wqe, wr, ibqp->qp_type);
+			wqe  += sizeof (struct mlx4_wqe_datagram_seg);
+			size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
+			build_tunnel_header(wr, wqe, &seglen);
+			wqe  += seglen;
+			size += seglen / 16;
+			break;
+
+		case MLX4_IB_QPT_SMI:
+		case MLX4_IB_QPT_GSI:
 			err = build_mlx_header(to_msqp(qp), wr, ctrl, &seglen);
 			if (unlikely(err)) {
 				*bad_wr = wr;
@@ -1909,8 +2398,10 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 		size += wr->num_sge * (sizeof (struct mlx4_wqe_data_seg) / 16);
 
 		/* Add one more inline data segment for ICRC for MLX sends */
-		if (unlikely(qp->ibqp.qp_type == IB_QPT_SMI ||
-			     qp->ibqp.qp_type == IB_QPT_GSI)) {
+		if (unlikely(qp->mlx4_ib_qp_type == MLX4_IB_QPT_SMI ||
+			     qp->mlx4_ib_qp_type == MLX4_IB_QPT_GSI ||
+			     qp->mlx4_ib_qp_type &
+			     (MLX4_IB_QPT_PROXY_SMI_OWNER | MLX4_IB_QPT_TUN_SMI_OWNER))) {
 			set_mlx_icrc_seg(dseg + 1);
 			size += sizeof (struct mlx4_wqe_data_seg) / 16;
 		}
@@ -2002,8 +2493,10 @@ int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 	int err = 0;
 	int nreq;
 	int ind;
+	int max_gs;
 	int i;
 
+	max_gs = qp->rq.max_gs;
 	spin_lock_irqsave(&qp->rq.lock, flags);
 
 	ind = qp->rq.head & (qp->rq.wqe_cnt - 1);
@@ -2023,10 +2516,25 @@ int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 
 		scat = get_recv_wqe(qp, ind);
 
+		if (qp->mlx4_ib_qp_type & (MLX4_IB_QPT_PROXY_SMI_OWNER |
+		    MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI)) {
+			ib_dma_sync_single_for_device(ibqp->device,
+						      qp->sqp_proxy_rcv[ind].map,
+						      sizeof (struct mlx4_ib_proxy_sqp_hdr),
+						      DMA_FROM_DEVICE);
+			scat->byte_count =
+				cpu_to_be32(sizeof (struct mlx4_ib_proxy_sqp_hdr));
+			/* use dma lkey from upper layer entry */
+			scat->lkey = cpu_to_be32(wr->sg_list->lkey);
+			scat->addr = cpu_to_be64(qp->sqp_proxy_rcv[ind].map);
+			scat++;
+			max_gs--;
+		}
+
 		for (i = 0; i < wr->num_sge; ++i)
 			__set_data_seg(scat + i, wr->sg_list + i);
 
-		if (i < qp->rq.max_gs) {
+		if (i < max_gs) {
 			scat[i].byte_count = 0;
 			scat[i].lkey       = cpu_to_be32(MLX4_INVALID_LKEY);
 			scat[i].addr       = 0;
@@ -2221,6 +2729,10 @@ done:
 	if (qp->flags & MLX4_IB_QP_LSO)
 		qp_init_attr->create_flags |= IB_QP_CREATE_IPOIB_UD_LSO;
 
+	qp_init_attr->sq_sig_type =
+		qp->sq_signal_bits == cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE) ?
+		IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
+
 out:
 	mutex_unlock(&qp->mutex);
 	return err;
diff --git a/drivers/infiniband/hw/mlx4/sysfs.c b/drivers/infiniband/hw/mlx4/sysfs.c
new file mode 100644
index 00000000000..5b2a01dfb90
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/sysfs.c
@@ -0,0 +1,794 @@
+/*
+ * Copyright (c) 2012 Mellanox Technologies.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*#include "core_priv.h"*/
+#include "mlx4_ib.h"
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+
+#include <rdma/ib_mad.h>
+/*show_admin_alias_guid returns the administratively assigned value of that GUID.
+ * Values returned in buf parameter string:
+ *	0			- requests opensm to assign a value.
+ *	ffffffffffffffff	- delete this entry.
+ *	other			- value assigned by administrator.
+ */
+static ssize_t show_admin_alias_guid(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	int record_num;/*0-15*/
+	int guid_index_in_rec; /*0 - 7*/
+	struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
+		container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
+	struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
+	struct mlx4_ib_dev *mdev = port->dev;
+
+	record_num = mlx4_ib_iov_dentry->entry_num / 8 ;
+	guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8 ;
+
+	return sprintf(buf, "%llx\n",
+		       be64_to_cpu(*(__be64 *)&mdev->sriov.alias_guid.
+				   ports_guid[port->num - 1].
+				   all_rec_per_port[record_num].
+				   all_recs[8 * guid_index_in_rec]));
+}
+
+/* store_admin_alias_guid stores the (new) administratively assigned value of that GUID.
+ * Values in buf parameter string:
+ *	0			- requests opensm to assign a value.
+ *	0xffffffffffffffff	- delete this entry.
+ *	other			- guid value assigned by the administrator.
+ */
+static ssize_t store_admin_alias_guid(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
+{
+	int record_num;/*0-15*/
+	int guid_index_in_rec; /*0 - 7*/
+	struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
+		container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
+	struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
+	struct mlx4_ib_dev *mdev = port->dev;
+	u64 sysadmin_ag_val;
+
+	record_num = mlx4_ib_iov_dentry->entry_num / 8;
+	guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8;
+	if (0 == record_num && 0 == guid_index_in_rec) {
+		pr_err("GUID 0 block 0 is RO\n");
+		return count;
+	}
+	sscanf(buf, "%llx", &sysadmin_ag_val);
+	*(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1].
+		all_rec_per_port[record_num].
+		all_recs[GUID_REC_SIZE * guid_index_in_rec] =
+			cpu_to_be64(sysadmin_ag_val);
+
+	/* Change the state to be pending for update */
+	mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status
+		= MLX4_GUID_INFO_STATUS_IDLE ;
+
+	mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method
+		= MLX4_GUID_INFO_RECORD_SET;
+
+	switch (sysadmin_ag_val) {
+	case MLX4_GUID_FOR_DELETE_VAL:
+		mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method
+			= MLX4_GUID_INFO_RECORD_DELETE;
+		mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership
+			= MLX4_GUID_SYSADMIN_ASSIGN;
+		break;
+	/* The sysadmin requests the SM to re-assign */
+	case MLX4_NOT_SET_GUID:
+		mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership
+			= MLX4_GUID_DRIVER_ASSIGN;
+		break;
+	/* The sysadmin requests a specific value.*/
+	default:
+		mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership
+			= MLX4_GUID_SYSADMIN_ASSIGN;
+		break;
+	}
+
+	/* set the record index */
+	mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes
+		= mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec);
+
+	mlx4_ib_init_alias_guid_work(mdev, port->num - 1);
+
+	return count;
+}
+
+static ssize_t show_port_gid(struct device *dev,
+			     struct device_attribute *attr,
+			     char *buf)
+{
+	struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
+		container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
+	struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
+	struct mlx4_ib_dev *mdev = port->dev;
+	union ib_gid gid;
+	ssize_t ret;
+
+	ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num,
+				  mlx4_ib_iov_dentry->entry_num, &gid, 1);
+	if (ret)
+		return ret;
+	ret = sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
+		      be16_to_cpu(((__be16 *) gid.raw)[0]),
+		      be16_to_cpu(((__be16 *) gid.raw)[1]),
+		      be16_to_cpu(((__be16 *) gid.raw)[2]),
+		      be16_to_cpu(((__be16 *) gid.raw)[3]),
+		      be16_to_cpu(((__be16 *) gid.raw)[4]),
+		      be16_to_cpu(((__be16 *) gid.raw)[5]),
+		      be16_to_cpu(((__be16 *) gid.raw)[6]),
+		      be16_to_cpu(((__be16 *) gid.raw)[7]));
+	return ret;
+}
+
+static ssize_t show_phys_port_pkey(struct device *dev,
+				   struct device_attribute *attr,
+				   char *buf)
+{
+	struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
+		container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
+	struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
+	struct mlx4_ib_dev *mdev = port->dev;
+	u16 pkey;
+	ssize_t ret;
+
+	ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num,
+				   mlx4_ib_iov_dentry->entry_num, &pkey, 1);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "0x%04x\n", pkey);
+}
+
+#define DENTRY_REMOVE(_dentry)						\
+do {									\
+	sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr);	\
+} while (0);
+
+static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry,
+			      char *_name, struct kobject *_kobj,
+			      ssize_t (*show)(struct device *dev,
+					      struct device_attribute *attr,
+					      char *buf),
+			      ssize_t (*store)(struct device *dev,
+					       struct device_attribute *attr,
+					       const char *buf, size_t count)
+			      )
+{
+	int ret = 0;
+	struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry;
+
+	vdentry->ctx = _ctx;
+	vdentry->dentry.show = show;
+	vdentry->dentry.store = store;
+	sysfs_attr_init(&vdentry->dentry.attr);
+	vdentry->dentry.attr.name = vdentry->name;
+	vdentry->dentry.attr.mode = 0;
+	vdentry->kobj = _kobj;
+	snprintf(vdentry->name, 15, "%s", _name);
+
+	if (vdentry->dentry.store)
+		vdentry->dentry.attr.mode |= S_IWUSR;
+
+	if (vdentry->dentry.show)
+		vdentry->dentry.attr.mode |= S_IRUGO;
+
+	ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr);
+	if (ret) {
+		pr_err("failed to create %s\n", vdentry->dentry.attr.name);
+		vdentry->ctx = NULL;
+		return ret;
+	}
+
+	return ret;
+}
+
+int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
+		struct attribute *attr)
+{
+	struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1];
+	int ret;
+
+	ret = sysfs_create_file(port->mcgs_parent, attr);
+	if (ret)
+		pr_err("failed to create %s\n", attr->name);
+
+	return ret;
+}
+
+void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
+		struct attribute *attr)
+{
+	struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1];
+
+	sysfs_remove_file(port->mcgs_parent, attr);
+}
+
+static int add_port_entries(struct mlx4_ib_dev *device, int port_num)
+{
+	int i;
+	char buff[10];
+	struct mlx4_ib_iov_port *port = NULL;
+	int ret = 0 ;
+	struct ib_port_attr attr;
+
+	/* get the physical gid and pkey table sizes.*/
+	ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1);
+	if (ret)
+		goto err;
+
+	port = &device->iov_ports[port_num - 1];
+	port->dev = device;
+	port->num = port_num;
+	/* Directory structure:
+	 * iov -
+	 *   port num -
+	 *	admin_guids
+	 *	gids (operational)
+	 *	mcg_table
+	 */
+	port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar),
+				 GFP_KERNEL);
+	if (!port->dentr_ar) {
+		ret = -ENOMEM;
+		goto err;
+	}
+	sprintf(buff, "%d", port_num);
+	port->cur_port = kobject_create_and_add(buff,
+				 kobject_get(device->ports_parent));
+	if (!port->cur_port) {
+		ret = -ENOMEM;
+		goto kobj_create_err;
+	}
+	/* admin GUIDs */
+	port->admin_alias_parent = kobject_create_and_add("admin_guids",
+						  kobject_get(port->cur_port));
+	if (!port->admin_alias_parent) {
+		ret = -ENOMEM;
+		goto err_admin_guids;
+	}
+	for (i = 0 ; i < attr.gid_tbl_len; i++) {
+		sprintf(buff, "%d", i);
+		port->dentr_ar->dentries[i].entry_num = i;
+		ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i],
+					  buff, port->admin_alias_parent,
+					  show_admin_alias_guid, store_admin_alias_guid);
+		if (ret)
+			goto err_admin_alias_parent;
+	}
+
+	/* gids subdirectory (operational gids) */
+	port->gids_parent = kobject_create_and_add("gids",
+						  kobject_get(port->cur_port));
+	if (!port->gids_parent) {
+		ret = -ENOMEM;
+		goto err_gids;
+	}
+
+	for (i = 0 ; i < attr.gid_tbl_len; i++) {
+		sprintf(buff, "%d", i);
+		port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i;
+		ret = create_sysfs_entry(port,
+					 &port->dentr_ar->dentries[attr.gid_tbl_len + i],
+					 buff,
+					 port->gids_parent, show_port_gid, NULL);
+		if (ret)
+			goto err_gids_parent;
+	}
+
+	/* physical port pkey table */
+	port->pkeys_parent =
+		kobject_create_and_add("pkeys", kobject_get(port->cur_port));
+	if (!port->pkeys_parent) {
+		ret = -ENOMEM;
+		goto err_pkeys;
+	}
+
+	for (i = 0 ; i < attr.pkey_tbl_len; i++) {
+		sprintf(buff, "%d", i);
+		port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i;
+		ret = create_sysfs_entry(port,
+					 &port->dentr_ar->dentries[2 * attr.gid_tbl_len + i],
+					 buff, port->pkeys_parent,
+					 show_phys_port_pkey, NULL);
+		if (ret)
+			goto err_pkeys_parent;
+	}
+
+	/* MCGs table */
+	port->mcgs_parent =
+		kobject_create_and_add("mcgs", kobject_get(port->cur_port));
+	if (!port->mcgs_parent) {
+		ret = -ENOMEM;
+		goto err_mcgs;
+	}
+	return 0;
+
+err_mcgs:
+	kobject_put(port->cur_port);
+
+err_pkeys_parent:
+	kobject_put(port->pkeys_parent);
+
+err_pkeys:
+	kobject_put(port->cur_port);
+
+err_gids_parent:
+	kobject_put(port->gids_parent);
+
+err_gids:
+	kobject_put(port->cur_port);
+
+err_admin_alias_parent:
+	kobject_put(port->admin_alias_parent);
+
+err_admin_guids:
+	kobject_put(port->cur_port);
+	kobject_put(port->cur_port); /* once more for create_and_add buff */
+
+kobj_create_err:
+	kobject_put(device->ports_parent);
+	kfree(port->dentr_ar);
+
+err:
+	pr_err("add_port_entries FAILED: for port:%d, error: %d\n",
+	       port_num, ret);
+	return ret;
+}
+
+static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max)
+{
+	char base_name[9];
+
+	/* pci_name format is: bus:dev:func -> xxxx:yy:zz.n */
+	strlcpy(name, pci_name(dev->dev->pdev), max);
+	strncpy(base_name, name, 8); /*till xxxx:yy:*/
+	base_name[8] = '\0';
+	/* with no ARI only 3 last bits are used so when the fn is higher than 8
+	 * need to add it to the dev num, so count in the last number will be
+	 * modulo 8 */
+	sprintf(name, "%s%.2d.%d", base_name, (i/8), (i%8));
+}
+
+struct mlx4_port {
+	struct kobject         kobj;
+	struct mlx4_ib_dev    *dev;
+	struct attribute_group pkey_group;
+	struct attribute_group gid_group;
+	u8                     port_num;
+	int		       slave;
+};
+
+
+static void mlx4_port_release(struct kobject *kobj)
+{
+	struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
+	struct attribute *a;
+	int i;
+
+	for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
+		kfree(a);
+	kfree(p->pkey_group.attrs);
+	for (i = 0; (a = p->gid_group.attrs[i]); ++i)
+		kfree(a);
+	kfree(p->gid_group.attrs);
+	kfree(p);
+}
+
+struct port_attribute {
+	struct attribute attr;
+	ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf);
+	ssize_t (*store)(struct mlx4_port *, struct port_attribute *,
+			 const char *buf, size_t count);
+};
+
+static ssize_t port_attr_show(struct kobject *kobj,
+			      struct attribute *attr, char *buf)
+{
+	struct port_attribute *port_attr =
+		container_of(attr, struct port_attribute, attr);
+	struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
+
+	if (!port_attr->show)
+		return -EIO;
+	return port_attr->show(p, port_attr, buf);
+}
+
+static ssize_t port_attr_store(struct kobject *kobj,
+			       struct attribute *attr,
+			       const char *buf, size_t size)
+{
+	struct port_attribute *port_attr =
+		container_of(attr, struct port_attribute, attr);
+	struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
+
+	if (!port_attr->store)
+		return -EIO;
+	return port_attr->store(p, port_attr, buf, size);
+}
+
+static const struct sysfs_ops port_sysfs_ops = {
+	.show = port_attr_show,
+	.store = port_attr_store,
+};
+
+static struct kobj_type port_type = {
+	.release    = mlx4_port_release,
+	.sysfs_ops  = &port_sysfs_ops,
+};
+
+struct port_table_attribute {
+	struct port_attribute	attr;
+	char			name[8];
+	int			index;
+};
+
+static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr,
+			      char *buf)
+{
+	struct port_table_attribute *tab_attr =
+		container_of(attr, struct port_table_attribute, attr);
+	ssize_t ret = -ENODEV;
+
+	if (p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index] >=
+	    (p->dev->dev->caps.pkey_table_len[p->port_num]))
+		ret = sprintf(buf, "none\n");
+	else
+		ret = sprintf(buf, "%d\n",
+			      p->dev->pkeys.virt2phys_pkey[p->slave]
+			      [p->port_num - 1][tab_attr->index]);
+	return ret;
+}
+
+static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct port_table_attribute *tab_attr =
+		container_of(attr, struct port_table_attribute, attr);
+	int idx;
+	int err;
+
+	/* do not allow remapping Dom0 virtual pkey table */
+	if (p->slave == mlx4_master_func_num(p->dev->dev))
+		return -EINVAL;
+
+	if (!strncasecmp(buf, "no", 2))
+		idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1;
+	else if (sscanf(buf, "%i", &idx) != 1 ||
+		 idx >= p->dev->dev->caps.pkey_table_len[p->port_num] ||
+		 idx < 0)
+		return -EINVAL;
+
+	p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1]
+				    [tab_attr->index] = idx;
+	mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num,
+			     tab_attr->index, idx);
+	err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num);
+	if (err) {
+		pr_err("mlx4_gen_pkey_eqe failed for slave %d,"
+		       " port %d, index %d\n", p->slave, p->port_num, idx);
+		return err;
+	}
+	return count;
+}
+
+static ssize_t show_port_gid_idx(struct mlx4_port *p,
+				 struct port_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d\n", p->slave);
+}
+
+static struct attribute **
+alloc_group_attrs(ssize_t (*show)(struct mlx4_port *,
+				  struct port_attribute *, char *buf),
+		  ssize_t (*store)(struct mlx4_port *, struct port_attribute *,
+				   const char *buf, size_t count),
+		  int len)
+{
+	struct attribute **tab_attr;
+	struct port_table_attribute *element;
+	int i;
+
+	tab_attr = kcalloc(1 + len, sizeof (struct attribute *), GFP_KERNEL);
+	if (!tab_attr)
+		return NULL;
+
+	for (i = 0; i < len; i++) {
+		element = kzalloc(sizeof (struct port_table_attribute),
+				  GFP_KERNEL);
+		if (!element)
+			goto err;
+		if (snprintf(element->name, sizeof (element->name),
+			     "%d", i) >= sizeof (element->name)) {
+			kfree(element);
+			goto err;
+		}
+		sysfs_attr_init(&element->attr.attr);
+		element->attr.attr.name  = element->name;
+		if (store) {
+			element->attr.attr.mode  = S_IWUSR | S_IRUGO;
+			element->attr.store	 = store;
+		} else
+			element->attr.attr.mode  = S_IRUGO;
+
+		element->attr.show       = show;
+		element->index		 = i;
+		tab_attr[i] = &element->attr.attr;
+	}
+	return tab_attr;
+
+err:
+	while (--i >= 0)
+		kfree(tab_attr[i]);
+	kfree(tab_attr);
+	return NULL;
+}
+
+static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave)
+{
+	struct mlx4_port *p;
+	int i;
+	int ret;
+
+	p = kzalloc(sizeof *p, GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	p->dev = dev;
+	p->port_num = port_num;
+	p->slave = slave;
+
+	ret = kobject_init_and_add(&p->kobj, &port_type,
+				   kobject_get(dev->dev_ports_parent[slave]),
+				   "%d", port_num);
+	if (ret)
+		goto err_alloc;
+
+	p->pkey_group.name  = "pkey_idx";
+	p->pkey_group.attrs =
+		alloc_group_attrs(show_port_pkey, store_port_pkey,
+				  dev->dev->caps.pkey_table_len[port_num]);
+	if (!p->pkey_group.attrs)
+		goto err_alloc;
+
+	ret = sysfs_create_group(&p->kobj, &p->pkey_group);
+	if (ret)
+		goto err_free_pkey;
+
+	p->gid_group.name  = "gid_idx";
+	p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1);
+	if (!p->gid_group.attrs)
+		goto err_free_pkey;
+
+	ret = sysfs_create_group(&p->kobj, &p->gid_group);
+	if (ret)
+		goto err_free_gid;
+
+	list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]);
+	return 0;
+
+err_free_gid:
+	kfree(p->gid_group.attrs[0]);
+	kfree(p->gid_group.attrs);
+
+err_free_pkey:
+	for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i)
+		kfree(p->pkey_group.attrs[i]);
+	kfree(p->pkey_group.attrs);
+
+err_alloc:
+	kobject_put(dev->dev_ports_parent[slave]);
+	kfree(p);
+	return ret;
+}
+
+static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave)
+{
+	char name[32];
+	int err;
+	int port;
+	struct kobject *p, *t;
+	struct mlx4_port *mport;
+
+	get_name(dev, name, slave, sizeof name);
+
+	dev->pkeys.device_parent[slave] =
+		kobject_create_and_add(name, kobject_get(dev->iov_parent));
+
+	if (!dev->pkeys.device_parent[slave]) {
+		err = -ENOMEM;
+		goto fail_dev;
+	}
+
+	INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]);
+
+	dev->dev_ports_parent[slave] =
+		kobject_create_and_add("ports",
+				       kobject_get(dev->pkeys.device_parent[slave]));
+
+	if (!dev->dev_ports_parent[slave]) {
+		err = -ENOMEM;
+		goto err_ports;
+	}
+
+	for (port = 1; port <= dev->dev->caps.num_ports; ++port) {
+		err = add_port(dev, port, slave);
+		if (err)
+			goto err_add;
+	}
+	return 0;
+
+err_add:
+	list_for_each_entry_safe(p, t,
+				 &dev->pkeys.pkey_port_list[slave],
+				 entry) {
+		list_del(&p->entry);
+		mport = container_of(p, struct mlx4_port, kobj);
+		sysfs_remove_group(p, &mport->pkey_group);
+		sysfs_remove_group(p, &mport->gid_group);
+		kobject_put(p);
+	}
+	kobject_put(dev->dev_ports_parent[slave]);
+
+err_ports:
+	kobject_put(dev->pkeys.device_parent[slave]);
+	/* extra put for the device_parent create_and_add */
+	kobject_put(dev->pkeys.device_parent[slave]);
+
+fail_dev:
+	kobject_put(dev->iov_parent);
+	return err;
+}
+
+static int register_pkey_tree(struct mlx4_ib_dev *device)
+{
+	int i;
+
+	if (!mlx4_is_master(device->dev))
+		return 0;
+
+	for (i = 0; i <= device->dev->num_vfs; ++i)
+		register_one_pkey_tree(device, i);
+
+	return 0;
+}
+
+static void unregister_pkey_tree(struct mlx4_ib_dev *device)
+{
+	int slave;
+	struct kobject *p, *t;
+	struct mlx4_port *port;
+
+	if (!mlx4_is_master(device->dev))
+		return;
+
+	for (slave = device->dev->num_vfs; slave >= 0; --slave) {
+		list_for_each_entry_safe(p, t,
+					 &device->pkeys.pkey_port_list[slave],
+					 entry) {
+			list_del(&p->entry);
+			port = container_of(p, struct mlx4_port, kobj);
+			sysfs_remove_group(p, &port->pkey_group);
+			sysfs_remove_group(p, &port->gid_group);
+			kobject_put(p);
+			kobject_put(device->dev_ports_parent[slave]);
+		}
+		kobject_put(device->dev_ports_parent[slave]);
+		kobject_put(device->pkeys.device_parent[slave]);
+		kobject_put(device->pkeys.device_parent[slave]);
+		kobject_put(device->iov_parent);
+	}
+}
+
+int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev)
+{
+	int i;
+	int ret = 0;
+
+	if (!mlx4_is_master(dev->dev))
+		return 0;
+
+	dev->iov_parent =
+		kobject_create_and_add("iov",
+				       kobject_get(dev->ib_dev.ports_parent->parent));
+	if (!dev->iov_parent) {
+		ret = -ENOMEM;
+		goto err;
+	}
+	dev->ports_parent =
+		kobject_create_and_add("ports",
+				       kobject_get(dev->iov_parent));
+	if (!dev->iov_parent) {
+		ret = -ENOMEM;
+		goto err_ports;
+	}
+
+	for (i = 1; i <= dev->ib_dev.phys_port_cnt; ++i) {
+		ret = add_port_entries(dev, i);
+		if (ret)
+			goto err_add_entries;
+	}
+
+	ret = register_pkey_tree(dev);
+	if (ret)
+		goto err_add_entries;
+	return 0;
+
+err_add_entries:
+	kobject_put(dev->ports_parent);
+
+err_ports:
+	kobject_put(dev->iov_parent);
+err:
+	kobject_put(dev->ib_dev.ports_parent->parent);
+	pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret);
+	return ret;
+}
+
+static void unregister_alias_guid_tree(struct mlx4_ib_dev *device)
+{
+	struct mlx4_ib_iov_port *p;
+	int i;
+
+	if (!mlx4_is_master(device->dev))
+		return;
+
+	for (i = 0; i < device->dev->caps.num_ports; i++) {
+		p = &device->iov_ports[i];
+		kobject_put(p->admin_alias_parent);
+		kobject_put(p->gids_parent);
+		kobject_put(p->pkeys_parent);
+		kobject_put(p->mcgs_parent);
+		kobject_put(p->cur_port);
+		kobject_put(p->cur_port);
+		kobject_put(p->cur_port);
+		kobject_put(p->cur_port);
+		kobject_put(p->cur_port);
+		kobject_put(p->dev->ports_parent);
+		kfree(p->dentr_ar);
+	}
+}
+
+void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device)
+{
+	unregister_alias_guid_tree(device);
+	unregister_pkey_tree(device);
+	kobject_put(device->ports_parent);
+	kobject_put(device->iov_parent);
+	kobject_put(device->iov_parent);
+	kobject_put(device->ib_dev.ports_parent->parent);
+}
diff --git a/drivers/infiniband/hw/mthca/mthca_reset.c b/drivers/infiniband/hw/mthca/mthca_reset.c
index 4fa3534ec23..74c6a942604 100644
--- a/drivers/infiniband/hw/mthca/mthca_reset.c
+++ b/drivers/infiniband/hw/mthca/mthca_reset.c
@@ -241,16 +241,16 @@ good:
 
 	if (hca_pcie_cap) {
 		devctl = hca_header[(hca_pcie_cap + PCI_EXP_DEVCTL) / 4];
-		if (pci_write_config_word(mdev->pdev, hca_pcie_cap + PCI_EXP_DEVCTL,
-					   devctl)) {
+		if (pcie_capability_write_word(mdev->pdev, PCI_EXP_DEVCTL,
+					       devctl)) {
 			err = -ENODEV;
 			mthca_err(mdev, "Couldn't restore HCA PCI Express "
 				  "Device Control register, aborting.\n");
 			goto out;
 		}
 		linkctl = hca_header[(hca_pcie_cap + PCI_EXP_LNKCTL) / 4];
-		if (pci_write_config_word(mdev->pdev, hca_pcie_cap + PCI_EXP_LNKCTL,
-					   linkctl)) {
+		if (pcie_capability_write_word(mdev->pdev, PCI_EXP_LNKCTL,
+					       linkctl)) {
 			err = -ENODEV;
 			mthca_err(mdev, "Couldn't restore HCA PCI Express "
 				  "Link control register, aborting.\n");
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index c438e4691b3..0da62b904d0 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -399,11 +399,20 @@ static inline void nes_write8(void __iomem *addr, u8 val)
 	writeb(val, addr);
 }
 
-
+enum nes_resource {
+	NES_RESOURCE_MW = 1,
+	NES_RESOURCE_FAST_MR,
+	NES_RESOURCE_PHYS_MR,
+	NES_RESOURCE_USER_MR,
+	NES_RESOURCE_PD,
+	NES_RESOURCE_QP,
+	NES_RESOURCE_CQ,
+	NES_RESOURCE_ARP
+};
 
 static inline int nes_alloc_resource(struct nes_adapter *nesadapter,
 		unsigned long *resource_array, u32 max_resources,
-		u32 *req_resource_num, u32 *next)
+		u32 *req_resource_num, u32 *next, enum nes_resource resource_type)
 {
 	unsigned long flags;
 	u32 resource_num;
@@ -414,7 +423,7 @@ static inline int nes_alloc_resource(struct nes_adapter *nesadapter,
 	if (resource_num >= max_resources) {
 		resource_num = find_first_zero_bit(resource_array, max_resources);
 		if (resource_num >= max_resources) {
-			printk(KERN_ERR PFX "%s: No available resourcess.\n", __func__);
+			printk(KERN_ERR PFX "%s: No available resources [type=%u].\n", __func__, resource_type);
 			spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
 			return -EMFILE;
 		}
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 020e95c4c4b..cfaacaf6bf5 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -430,6 +430,8 @@ static void form_cm_frame(struct sk_buff *skb,
 	buf += sizeof(*tcph);
 
 	skb->ip_summed = CHECKSUM_PARTIAL;
+	if (!(cm_node->netdev->features & NETIF_F_IP_CSUM))
+		skb->ip_summed = CHECKSUM_NONE;
 	skb->protocol = htons(0x800);
 	skb->data_len = 0;
 	skb->mac_len = ETH_HLEN;
@@ -1356,7 +1358,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
 	else
 		netdev = nesvnic->netdev;
 
-	neigh = dst_neigh_lookup(&rt->dst, &dst_ip);
+	neigh = neigh_lookup(&arp_tbl, &rt->rt_gateway, netdev);
 
 	rcu_read_lock();
 	if (neigh) {
@@ -1465,12 +1467,8 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
 	cm_node->loopbackpartner = NULL;
 
 	/* get the mac addr for the remote node */
-	if (ipv4_is_loopback(htonl(cm_node->rem_addr))) {
-		arpindex = nes_arp_table(nesdev, ntohl(nesvnic->local_ipaddr), NULL, NES_ARP_RESOLVE);
-	} else {
-		oldarpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE);
-		arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr, oldarpindex);
-	}
+	oldarpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE);
+	arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr, oldarpindex);
 	if (arpindex < 0) {
 		kfree(cm_node);
 		return NULL;
@@ -3153,11 +3151,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 	nesqp->nesqp_context->tcpPorts[1] =
 		cpu_to_le16(ntohs(cm_id->remote_addr.sin_port));
 
-	if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr))
-		nesqp->nesqp_context->ip0 =
-			cpu_to_le32(ntohl(nesvnic->local_ipaddr));
-	else
-		nesqp->nesqp_context->ip0 =
+	nesqp->nesqp_context->ip0 =
 			cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr));
 
 	nesqp->nesqp_context->misc2 |= cpu_to_le32(
@@ -3182,10 +3176,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 	memset(&nes_quad, 0, sizeof(nes_quad));
 	nes_quad.DstIpAdrIndex =
 		cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
-	if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr))
-		nes_quad.SrcIpadr = nesvnic->local_ipaddr;
-	else
-		nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr;
+	nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr;
 	nes_quad.TcpPorts[0] = cm_id->remote_addr.sin_port;
 	nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port;
 
@@ -3538,11 +3529,7 @@ static void cm_event_connected(struct nes_cm_event *event)
 		cpu_to_le16(ntohs(cm_id->local_addr.sin_port));
 	nesqp->nesqp_context->tcpPorts[1] =
 		cpu_to_le16(ntohs(cm_id->remote_addr.sin_port));
-	if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr))
-		nesqp->nesqp_context->ip0 =
-			cpu_to_le32(ntohl(nesvnic->local_ipaddr));
-	else
-		nesqp->nesqp_context->ip0 =
+	nesqp->nesqp_context->ip0 =
 			cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr));
 
 	nesqp->nesqp_context->misc2 |= cpu_to_le32(
@@ -3571,10 +3558,7 @@ static void cm_event_connected(struct nes_cm_event *event)
 
 	nes_quad.DstIpAdrIndex =
 		cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
-	if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr))
-		nes_quad.SrcIpadr = nesvnic->local_ipaddr;
-	else
-		nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr;
+	nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr;
 	nes_quad.TcpPorts[0] = cm_id->remote_addr.sin_port;
 	nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port;
 
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index d42c9f435b1..fe7965ee409 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -2679,11 +2679,9 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
 			}
 		}
 		if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_SFP_D) {
-			if (nesdev->link_recheck)
-				cancel_delayed_work(&nesdev->work);
 			nesdev->link_recheck = 1;
-			schedule_delayed_work(&nesdev->work,
-					      NES_LINK_RECHECK_DELAY);
+			mod_delayed_work(system_wq, &nesdev->work,
+					 NES_LINK_RECHECK_DELAY);
 		}
 	}
 
@@ -3577,10 +3575,10 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
 	tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
 	iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
 	nes_debug(NES_DBG_AEQ, "aeid = 0x%04X, qp-cq id = %d, aeqe = %p,"
-			" Tcp state = %s, iWARP state = %s\n",
+			" Tcp state = %d, iWARP state = %d\n",
 			async_event_id,
 			le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), aeqe,
-			nes_tcp_state_str[tcp_state], nes_iwarp_state_str[iwarp_state]);
+			tcp_state, iwarp_state);
 
 	aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
 	if (aeq_info & NES_AEQE_QP) {
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index f3a3ecf8d09..0564be757d8 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -243,10 +243,9 @@ static int nes_netdev_open(struct net_device *netdev)
 
 	spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
 	if (nesdev->nesadapter->phy_type[nesdev->mac_index] == NES_PHY_TYPE_SFP_D) {
-		if (nesdev->link_recheck)
-			cancel_delayed_work(&nesdev->work);
 		nesdev->link_recheck = 1;
-		schedule_delayed_work(&nesdev->work, NES_LINK_RECHECK_DELAY);
+		mod_delayed_work(system_wq, &nesdev->work,
+				 NES_LINK_RECHECK_DELAY);
 	}
 	spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
 
@@ -385,24 +384,20 @@ static int nes_nic_send(struct sk_buff *skb, struct net_device *netdev)
 	/* bump past the vlan tag */
 	wqe_fragment_length++;
 	/*	wqe_fragment_address = (u64 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX]; */
+	wqe_misc |= NES_NIC_SQ_WQE_COMPLETION;
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		tcph = tcp_hdr(skb);
-		if (1) {
-			if (skb_is_gso(skb)) {
-				/* nes_debug(NES_DBG_NIC_TX, "%s: TSO request... seg size = %u\n",
-						netdev->name, skb_is_gso(skb)); */
-				wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE |
-						NES_NIC_SQ_WQE_COMPLETION | (u16)skb_is_gso(skb);
-				set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
-						((u32)tcph->doff) |
-						(((u32)(((unsigned char *)tcph) - skb->data)) << 4));
-			} else {
-				wqe_misc |= NES_NIC_SQ_WQE_COMPLETION;
-			}
+		if (skb_is_gso(skb)) {
+			tcph = tcp_hdr(skb);
+			/* nes_debug(NES_DBG_NIC_TX, "%s: TSO request... is_gso = %u seg size = %u\n",
+					netdev->name, skb_is_gso(skb), skb_shinfo(skb)->gso_size); */
+			wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE | (u16)skb_shinfo(skb)->gso_size;
+			set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_LSO_INFO_IDX,
+					((u32)tcph->doff) |
+					(((u32)(((unsigned char *)tcph) - skb->data)) << 4));
 		}
 	} else {	/* CHECKSUM_HW */
-		wqe_misc |= NES_NIC_SQ_WQE_DISABLE_CHKSUM | NES_NIC_SQ_WQE_COMPLETION;
+		wqe_misc |= NES_NIC_SQ_WQE_DISABLE_CHKSUM;
 	}
 
 	set_wqe_32bit_value(nic_sqe->wqe_words, NES_NIC_SQ_WQE_TOTAL_LENGTH_IDX,
@@ -597,10 +592,10 @@ tso_sq_no_longer_full:
 					nes_debug(NES_DBG_NIC_TX, "ERROR: SKB header too big, headlen=%u, FIRST_FRAG_SIZE=%u\n",
 							original_first_length, NES_FIRST_FRAG_SIZE);
 					nes_debug(NES_DBG_NIC_TX, "%s Request to tx NIC packet length %u, headlen %u,"
-							" (%u frags), tso_size=%u\n",
+							" (%u frags), is_gso = %u tso_size=%u\n",
 							netdev->name,
 							skb->len, skb_headlen(skb),
-							skb_shinfo(skb)->nr_frags, skb_is_gso(skb));
+							skb_shinfo(skb)->nr_frags, skb_is_gso(skb), skb_shinfo(skb)->gso_size);
 				}
 				memcpy(&nesnic->first_frag_vbase[nesnic->sq_head].buffer,
 						skb->data, min(((unsigned int)NES_FIRST_FRAG_SIZE),
@@ -652,8 +647,8 @@ tso_sq_no_longer_full:
 				} else {
 					nesnic->tx_skb[nesnic->sq_head] = NULL;
 				}
-				wqe_misc |= NES_NIC_SQ_WQE_COMPLETION | (u16)skb_is_gso(skb);
-				if ((tso_wqe_length + original_first_length) > skb_is_gso(skb)) {
+				wqe_misc |= NES_NIC_SQ_WQE_COMPLETION | (u16)skb_shinfo(skb)->gso_size;
+				if ((tso_wqe_length + original_first_length) > skb_shinfo(skb)->gso_size) {
 					wqe_misc |= NES_NIC_SQ_WQE_LSO_ENABLE;
 				} else {
 					iph->tot_len = htons(tso_wqe_length + original_first_length - nhoffset);
@@ -1679,12 +1674,10 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
 	netdev->hard_header_len = ETH_HLEN;
 	netdev->addr_len = ETH_ALEN;
 	netdev->type = ARPHRD_ETHER;
-	netdev->features = NETIF_F_HIGHDMA;
 	netdev->netdev_ops = &nes_netdev_ops;
 	netdev->ethtool_ops = &nes_ethtool_ops;
 	netif_napi_add(netdev, &nesvnic->napi, nes_netdev_poll, 128);
 	nes_debug(NES_DBG_INIT, "Enabling VLAN Insert/Delete.\n");
-	netdev->features |= NETIF_F_HW_VLAN_TX;
 
 	/* Fill in the port structure */
 	nesvnic->netdev = netdev;
@@ -1711,11 +1704,11 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
 	netdev->dev_addr[5] = (u8)u64temp;
 	memcpy(netdev->perm_addr, netdev->dev_addr, 6);
 
-	netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_IP_CSUM |
-			      NETIF_F_HW_VLAN_RX;
+	netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_RX;
 	if ((nesvnic->logical_port < 2) || (nesdev->nesadapter->hw_rev != NE020_REV))
 		netdev->hw_features |= NETIF_F_TSO;
-	netdev->features |= netdev->hw_features;
+
+	netdev->features = netdev->hw_features | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_TX;
 	netdev->hw_features |= NETIF_F_LRO;
 
 	nes_debug(NES_DBG_INIT, "nesvnic = %p, reported features = 0x%lX, QPid = %d,"
diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c
index e98f4fc0b76..2042c0f2975 100644
--- a/drivers/infiniband/hw/nes/nes_utils.c
+++ b/drivers/infiniband/hw/nes/nes_utils.c
@@ -699,7 +699,7 @@ int nes_arp_table(struct nes_device *nesdev, u32 ip_addr, u8 *mac_addr, u32 acti
 
 		arp_index = 0;
 		err = nes_alloc_resource(nesadapter, nesadapter->allocated_arps,
-				nesadapter->arp_table_size, (u32 *)&arp_index, &nesadapter->next_arp_index);
+				nesadapter->arp_table_size, (u32 *)&arp_index, &nesadapter->next_arp_index, NES_RESOURCE_ARP);
 		if (err) {
 			nes_debug(NES_DBG_NETDEV, "nes_alloc_resource returned error = %u\n", err);
 			return err;
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 8b8812de4b5..1dadcf388c0 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -80,7 +80,7 @@ static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) {
 	next_stag_index %= nesadapter->max_mr;
 
 	ret = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs,
-			nesadapter->max_mr, &stag_index, &next_stag_index);
+			nesadapter->max_mr, &stag_index, &next_stag_index, NES_RESOURCE_MW);
 	if (ret) {
 		return ERR_PTR(ret);
 	}
@@ -404,7 +404,7 @@ static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list
 
 	err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs,
 				 nesadapter->max_mr, &stag_index,
-				 &next_stag_index);
+				 &next_stag_index, NES_RESOURCE_FAST_MR);
 	if (err)
 		return ERR_PTR(err);
 
@@ -780,7 +780,7 @@ static struct ib_pd *nes_alloc_pd(struct ib_device *ibdev,
 			netdev_refcnt_read(nesvnic->netdev));
 
 	err = nes_alloc_resource(nesadapter, nesadapter->allocated_pds,
-			nesadapter->max_pd, &pd_num, &nesadapter->next_pd);
+			nesadapter->max_pd, &pd_num, &nesadapter->next_pd, NES_RESOURCE_PD);
 	if (err) {
 		return ERR_PTR(err);
 	}
@@ -1157,7 +1157,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
 			nes_debug(NES_DBG_QP, "RQ size=%u, SQ Size=%u\n", rq_size, sq_size);
 
 			ret = nes_alloc_resource(nesadapter, nesadapter->allocated_qps,
-					nesadapter->max_qp, &qp_num, &nesadapter->next_qp);
+					nesadapter->max_qp, &qp_num, &nesadapter->next_qp, NES_RESOURCE_QP);
 			if (ret) {
 				return ERR_PTR(ret);
 			}
@@ -1546,7 +1546,7 @@ static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries,
 		return ERR_PTR(-EINVAL);
 
 	err = nes_alloc_resource(nesadapter, nesadapter->allocated_cqs,
-			nesadapter->max_cq, &cq_num, &nesadapter->next_cq);
+			nesadapter->max_cq, &cq_num, &nesadapter->next_cq, NES_RESOURCE_CQ);
 	if (err) {
 		return ERR_PTR(err);
 	}
@@ -2129,7 +2129,7 @@ static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
 		return ERR_PTR(-EINVAL);
 
 	err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr,
-			&stag_index, &next_stag_index);
+			&stag_index, &next_stag_index, NES_RESOURCE_PHYS_MR);
 	if (err) {
 		return ERR_PTR(err);
 	}
@@ -2360,7 +2360,7 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 			next_stag_index %= nesadapter->max_mr;
 
 			err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs,
-					nesadapter->max_mr, &stag_index, &next_stag_index);
+					nesadapter->max_mr, &stag_index, &next_stag_index, NES_RESOURCE_USER_MR);
 			if (err) {
 				ib_umem_release(region);
 				return ERR_PTR(err);
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 5a044526e4f..c4e0131f1b5 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -161,7 +161,7 @@ static void ocrdma_add_default_sgid(struct ocrdma_dev *dev)
 	ocrdma_get_guid(dev, &sgid->raw[8]);
 }
 
-#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+#if IS_ENABLED(CONFIG_VLAN_8021Q)
 static void ocrdma_add_vlan_sgids(struct ocrdma_dev *dev)
 {
 	struct net_device *netdev, *tmp;
@@ -202,14 +202,13 @@ static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
 	return 0;
 }
 
-#if IS_ENABLED(CONFIG_IPV6) || IS_ENABLED(CONFIG_VLAN_8021Q)
+#if IS_ENABLED(CONFIG_IPV6)
 
 static int ocrdma_inet6addr_event(struct notifier_block *notifier,
 				  unsigned long event, void *ptr)
 {
 	struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
-	struct net_device *event_netdev = ifa->idev->dev;
-	struct net_device *netdev = NULL;
+	struct net_device *netdev = ifa->idev->dev;
 	struct ib_event gid_event;
 	struct ocrdma_dev *dev;
 	bool found = false;
@@ -217,11 +216,12 @@ static int ocrdma_inet6addr_event(struct notifier_block *notifier,
 	bool is_vlan = false;
 	u16 vid = 0;
 
-	netdev = vlan_dev_real_dev(event_netdev);
-	if (netdev != event_netdev) {
-		is_vlan = true;
-		vid = vlan_dev_vlan_id(event_netdev);
+	is_vlan = netdev->priv_flags & IFF_802_1Q_VLAN;
+	if (is_vlan) {
+		vid = vlan_dev_vlan_id(netdev);
+		netdev = vlan_dev_real_dev(netdev);
 	}
+
 	rcu_read_lock();
 	list_for_each_entry_rcu(dev, &ocrdma_dev_list, entry) {
 		if (dev->nic_info.netdev == netdev) {
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index cb5b7f7d4d3..b29a4246ef4 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -2219,7 +2219,6 @@ static bool ocrdma_poll_success_scqe(struct ocrdma_qp *qp,
 	u32 wqe_idx;
 
 	if (!qp->wqe_wr_id_tbl[tail].signaled) {
-		expand = true;	/* CQE cannot be consumed yet */
 		*polled = false;    /* WC cannot be consumed yet */
 	} else {
 		ibwc->status = IB_WC_SUCCESS;
@@ -2227,10 +2226,11 @@ static bool ocrdma_poll_success_scqe(struct ocrdma_qp *qp,
 		ibwc->qp = &qp->ibqp;
 		ocrdma_update_wc(qp, ibwc, tail);
 		*polled = true;
-		wqe_idx = le32_to_cpu(cqe->wq.wqeidx) &	OCRDMA_CQE_WQEIDX_MASK;
-		if (tail != wqe_idx)
-			expand = true; /* Coalesced CQE can't be consumed yet */
 	}
+	wqe_idx = le32_to_cpu(cqe->wq.wqeidx) &	OCRDMA_CQE_WQEIDX_MASK;
+	if (tail != wqe_idx)
+		expand = true; /* Coalesced CQE can't be consumed yet */
+
 	ocrdma_hwq_inc_tail(&qp->sq);
 	return expand;
 }
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
index 7b1b8669002..4d11575c201 100644
--- a/drivers/infiniband/hw/qib/qib.h
+++ b/drivers/infiniband/hw/qib/qib.h
@@ -87,7 +87,7 @@ struct qlogic_ib_stats {
 };
 
 extern struct qlogic_ib_stats qib_stats;
-extern struct pci_error_handlers qib_pci_err_handler;
+extern const struct pci_error_handlers qib_pci_err_handler;
 extern struct pci_driver qib_driver;
 
 #define QIB_CHIP_SWVERSION QIB_CHIP_VERS_MAJ
diff --git a/drivers/infiniband/hw/qib/qib_common.h b/drivers/infiniband/hw/qib/qib_common.h
index 145da404088..d39e0183ff8 100644
--- a/drivers/infiniband/hw/qib/qib_common.h
+++ b/drivers/infiniband/hw/qib/qib_common.h
@@ -285,7 +285,6 @@ struct qib_base_info {
 
 #ifndef QIB_KERN_TYPE
 #define QIB_KERN_TYPE 0
-#define QIB_IDSTR "QLogic kernel.org driver"
 #endif
 
 /*
@@ -302,6 +301,19 @@ struct qib_base_info {
 #define QIB_KERN_SWVERSION ((QIB_KERN_TYPE << 31) | QIB_USER_SWVERSION)
 
 /*
+ * Define the driver version number.  This is something that refers only
+ * to the driver itself, not the software interfaces it supports.
+ */
+#define QIB_DRIVER_VERSION_BASE "1.11"
+
+/* create the final driver version string */
+#ifdef QIB_IDSTR
+#define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE " " QIB_IDSTR
+#else
+#define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE
+#endif
+
+/*
  * If the unit is specified via open, HCA choice is fixed.  If port is
  * specified, it's also fixed.  Otherwise we try to spread contexts
  * across ports and HCAs, using different algorithims.  WITHIN is
diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c
index e41e7f7fc76..5423edcab51 100644
--- a/drivers/infiniband/hw/qib/qib_driver.c
+++ b/drivers/infiniband/hw/qib/qib_driver.c
@@ -46,7 +46,7 @@
  * The size has to be longer than this string, so we can append
  * board/chip information to it in the init code.
  */
-const char ib_qib_version[] = QIB_IDSTR "\n";
+const char ib_qib_version[] = QIB_DRIVER_VERSION "\n";
 
 DEFINE_SPINLOCK(qib_devs_lock);
 LIST_HEAD(qib_dev_list);
@@ -65,6 +65,7 @@ MODULE_PARM_DESC(compat_ddr_negotiate,
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_AUTHOR("QLogic <support@qlogic.com>");
 MODULE_DESCRIPTION("QLogic IB driver");
+MODULE_VERSION(QIB_DRIVER_VERSION);
 
 /*
  * QIB_PIO_MAXIBHDR is the max IB header size allowed for in our
diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index cff8a6c3216..65a2a23f6f8 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -61,8 +61,8 @@ static int qibfs_mknod(struct inode *dir, struct dentry *dentry,
 
 	inode->i_ino = get_next_ino();
 	inode->i_mode = mode;
-	inode->i_uid = 0;
-	inode->i_gid = 0;
+	inode->i_uid = GLOBAL_ROOT_UID;
+	inode->i_gid = GLOBAL_ROOT_GID;
 	inode->i_blocks = 0;
 	inode->i_atime = CURRENT_TIME;
 	inode->i_mtime = inode->i_atime;
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 0d7280af99b..3f6b21e9dc1 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -6346,8 +6346,10 @@ static int qib_init_7322_variables(struct qib_devdata *dd)
 			dd->piobcnt4k * dd->align4k;
 		dd->piovl15base	= ioremap_nocache(vl15off,
 						  NUM_VL15_BUFS * dd->align4k);
-		if (!dd->piovl15base)
+		if (!dd->piovl15base) {
+			ret = -ENOMEM;
 			goto bail;
+		}
 	}
 	qib_7322_set_baseaddrs(dd); /* set chip access pointers now */
 
diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c
index e9486c74c22..81c7b73695d 100644
--- a/drivers/infiniband/hw/qib/qib_keys.c
+++ b/drivers/infiniband/hw/qib/qib_keys.c
@@ -186,8 +186,9 @@ int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
 		goto bail;
 
 	off = sge->addr - mr->user_base;
-	if (unlikely(sge->addr < mr->iova || off + sge->length > mr->length ||
-		     (mr->access_flags & acc) == 0))
+	if (unlikely(sge->addr < mr->user_base ||
+		     off + sge->length > mr->length ||
+		     (mr->access_flags & acc) != acc))
 		goto bail;
 	if (unlikely(!atomic_inc_not_zero(&mr->refcount)))
 		goto bail;
diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c
index 19f1e6c45fb..ccb119143d2 100644
--- a/drivers/infiniband/hw/qib/qib_mad.c
+++ b/drivers/infiniband/hw/qib/qib_mad.c
@@ -471,9 +471,10 @@ static int subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev,
 		if (port_num != port) {
 			ibp = to_iport(ibdev, port_num);
 			ret = check_mkey(ibp, smp, 0);
-			if (ret)
+			if (ret) {
 				ret = IB_MAD_RESULT_FAILURE;
 				goto bail;
+			}
 		}
 	}
 
diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 062c301ebf5..c574ec7c85e 100644
--- a/drivers/infiniband/hw/qib/qib_pcie.c
+++ b/drivers/infiniband/hw/qib/qib_pcie.c
@@ -273,10 +273,9 @@ int qib_pcie_params(struct qib_devdata *dd, u32 minw, u32 *nent,
 		    struct qib_msix_entry *entry)
 {
 	u16 linkstat, speed;
-	int pos = 0, pose, ret = 1;
+	int pos = 0, ret = 1;
 
-	pose = pci_pcie_cap(dd->pcidev);
-	if (!pose) {
+	if (!pci_is_pcie(dd->pcidev)) {
 		qib_dev_err(dd, "Can't find PCI Express capability!\n");
 		/* set up something... */
 		dd->lbus_width = 1;
@@ -298,7 +297,7 @@ int qib_pcie_params(struct qib_devdata *dd, u32 minw, u32 *nent,
 	if (!pos)
 		qib_enable_intx(dd->pcidev);
 
-	pci_read_config_word(dd->pcidev, pose + PCI_EXP_LNKSTA, &linkstat);
+	pcie_capability_read_word(dd->pcidev, PCI_EXP_LNKSTA, &linkstat);
 	/*
 	 * speed is bits 0-3, linkwidth is bits 4-8
 	 * no defines for them in headers
@@ -516,7 +515,6 @@ static int qib_tune_pcie_coalesce(struct qib_devdata *dd)
 {
 	int r;
 	struct pci_dev *parent;
-	int ppos;
 	u16 devid;
 	u32 mask, bits, val;
 
@@ -529,8 +527,7 @@ static int qib_tune_pcie_coalesce(struct qib_devdata *dd)
 		qib_devinfo(dd->pcidev, "Parent not root\n");
 		return 1;
 	}
-	ppos = pci_pcie_cap(parent);
-	if (!ppos)
+	if (!pci_is_pcie(parent))
 		return 1;
 	if (parent->vendor != 0x8086)
 		return 1;
@@ -587,7 +584,6 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 {
 	int ret = 1; /* Assume the worst */
 	struct pci_dev *parent;
-	int ppos, epos;
 	u16 pcaps, pctl, ecaps, ectl;
 	int rc_sup, ep_sup;
 	int rc_cur, ep_cur;
@@ -598,19 +594,15 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 		qib_devinfo(dd->pcidev, "Parent not root\n");
 		goto bail;
 	}
-	ppos = pci_pcie_cap(parent);
-	if (ppos) {
-		pci_read_config_word(parent, ppos + PCI_EXP_DEVCAP, &pcaps);
-		pci_read_config_word(parent, ppos + PCI_EXP_DEVCTL, &pctl);
-	} else
+
+	if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev))
 		goto bail;
+	pcie_capability_read_word(parent, PCI_EXP_DEVCAP, &pcaps);
+	pcie_capability_read_word(parent, PCI_EXP_DEVCTL, &pctl);
 	/* Find out supported and configured values for endpoint (us) */
-	epos = pci_pcie_cap(dd->pcidev);
-	if (epos) {
-		pci_read_config_word(dd->pcidev, epos + PCI_EXP_DEVCAP, &ecaps);
-		pci_read_config_word(dd->pcidev, epos + PCI_EXP_DEVCTL, &ectl);
-	} else
-		goto bail;
+	pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCAP, &ecaps);
+	pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCTL, &ectl);
+
 	ret = 0;
 	/* Find max payload supported by root, endpoint */
 	rc_sup = fld2val(pcaps, PCI_EXP_DEVCAP_PAYLOAD);
@@ -629,14 +621,14 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 		rc_cur = rc_sup;
 		pctl = (pctl & ~PCI_EXP_DEVCTL_PAYLOAD) |
 			val2fld(rc_cur, PCI_EXP_DEVCTL_PAYLOAD);
-		pci_write_config_word(parent, ppos + PCI_EXP_DEVCTL, pctl);
+		pcie_capability_write_word(parent, PCI_EXP_DEVCTL, pctl);
 	}
 	/* If less than (allowed, supported), bump endpoint payload */
 	if (rc_sup > ep_cur) {
 		ep_cur = rc_sup;
 		ectl = (ectl & ~PCI_EXP_DEVCTL_PAYLOAD) |
 			val2fld(ep_cur, PCI_EXP_DEVCTL_PAYLOAD);
-		pci_write_config_word(dd->pcidev, epos + PCI_EXP_DEVCTL, ectl);
+		pcie_capability_write_word(dd->pcidev, PCI_EXP_DEVCTL, ectl);
 	}
 
 	/*
@@ -654,13 +646,13 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 		rc_cur = rc_sup;
 		pctl = (pctl & ~PCI_EXP_DEVCTL_READRQ) |
 			val2fld(rc_cur, PCI_EXP_DEVCTL_READRQ);
-		pci_write_config_word(parent, ppos + PCI_EXP_DEVCTL, pctl);
+		pcie_capability_write_word(parent, PCI_EXP_DEVCTL, pctl);
 	}
 	if (rc_sup > ep_cur) {
 		ep_cur = rc_sup;
 		ectl = (ectl & ~PCI_EXP_DEVCTL_READRQ) |
 			val2fld(ep_cur, PCI_EXP_DEVCTL_READRQ);
-		pci_write_config_word(dd->pcidev, epos + PCI_EXP_DEVCTL, ectl);
+		pcie_capability_write_word(dd->pcidev, PCI_EXP_DEVCTL, ectl);
 	}
 bail:
 	return ret;
@@ -753,7 +745,7 @@ qib_pci_resume(struct pci_dev *pdev)
 	qib_init(dd, 1); /* same as re-init after reset */
 }
 
-struct pci_error_handlers qib_pci_err_handler = {
+const struct pci_error_handlers qib_pci_err_handler = {
 	.error_detected = qib_pci_error_detected,
 	.mmio_enabled = qib_pci_mmio_enabled,
 	.link_reset = qib_pci_link_reset,
diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c
index a322d5171a2..50a8a0d4fe6 100644
--- a/drivers/infiniband/hw/qib/qib_sd7220.c
+++ b/drivers/infiniband/hw/qib/qib_sd7220.c
@@ -372,7 +372,7 @@ static void qib_sd_trimdone_monitor(struct qib_devdata *dd,
 		/* Read CTRL reg for each channel to check TRIMDONE */
 		if (baduns & (1 << chn)) {
 			qib_dev_err(dd,
-				"Reseting TRIMDONE on chn %d (%s)\n",
+				"Resetting TRIMDONE on chn %d (%s)\n",
 				chn, where);
 			ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES,
 				IB_CTRL2(chn), 0x10, 0x10);
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index fc9b205c241..ba51a4715a1 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -2224,7 +2224,7 @@ int qib_register_ib_device(struct qib_devdata *dd)
 	ibdev->dma_ops = &qib_dma_mapping_ops;
 
 	snprintf(ibdev->node_desc, sizeof(ibdev->node_desc),
-		 QIB_IDSTR " %s", init_utsname()->nodename);
+		 "QLogic Infiniband HCA %s", init_utsname()->nodename);
 
 	ret = ib_register_device(ibdev, qib_create_port_files);
 	if (ret)
diff --git a/drivers/infiniband/ulp/ipoib/Makefile b/drivers/infiniband/ulp/ipoib/Makefile
index 3090100f0de..e5430dd5076 100644
--- a/drivers/infiniband/ulp/ipoib/Makefile
+++ b/drivers/infiniband/ulp/ipoib/Makefile
@@ -5,7 +5,8 @@ ib_ipoib-y					:= ipoib_main.o \
 						   ipoib_multicast.o \
 						   ipoib_verbs.o \
 						   ipoib_vlan.o \
-						   ipoib_ethtool.o
+						   ipoib_ethtool.o \
+						   ipoib_netlink.o
 ib_ipoib-$(CONFIG_INFINIBAND_IPOIB_CM)		+= ipoib_cm.o
 ib_ipoib-$(CONFIG_INFINIBAND_IPOIB_DEBUG)	+= ipoib_fs.o
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index ca43901ed86..196eb52f003 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -104,6 +104,10 @@ enum {
 
 	MAX_SEND_CQE		  = 16,
 	IPOIB_CM_COPYBREAK	  = 256,
+
+	IPOIB_NON_CHILD		  = 0,
+	IPOIB_LEGACY_CHILD	  = 1,
+	IPOIB_RTNL_CHILD	  = 2,
 };
 
 #define	IPOIB_OP_RECV   (1ul << 31)
@@ -262,7 +266,10 @@ struct ipoib_ethtool_st {
 	u16     max_coalesced_frames;
 };
 
+struct ipoib_neigh_table;
+
 struct ipoib_neigh_hash {
+	struct ipoib_neigh_table       *ntbl;
 	struct ipoib_neigh __rcu      **buckets;
 	struct rcu_head			rcu;
 	u32				mask;
@@ -271,9 +278,9 @@ struct ipoib_neigh_hash {
 
 struct ipoib_neigh_table {
 	struct ipoib_neigh_hash __rcu  *htbl;
-	rwlock_t			rwlock;
 	atomic_t			entries;
 	struct completion		flushed;
+	struct completion		deleted;
 };
 
 /*
@@ -350,6 +357,7 @@ struct ipoib_dev_priv {
 	struct net_device *parent;
 	struct list_head child_intfs;
 	struct list_head list;
+	int    child_type;
 
 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 	struct ipoib_cm_dev_priv cm;
@@ -509,6 +517,17 @@ void ipoib_event(struct ib_event_handler *handler,
 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
 
+int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
+		     u16 pkey, int child_type);
+
+int  __init ipoib_netlink_init(void);
+void __exit ipoib_netlink_fini(void);
+
+void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
+int  ipoib_set_mode(struct net_device *dev, const char *buf);
+
+void ipoib_setup(struct net_device *dev);
+
 void ipoib_pkey_poll(struct work_struct *work);
 int ipoib_pkey_dev_delay_open(struct net_device *dev);
 void ipoib_drain_cq(struct net_device *dev);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 95ecf4eadf5..175581cf478 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -1271,12 +1271,15 @@ struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path
 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(tx->dev);
+	unsigned long flags;
 	if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &tx->flags)) {
+		spin_lock_irqsave(&priv->lock, flags);
 		list_move(&tx->list, &priv->cm.reap_list);
 		queue_work(ipoib_workqueue, &priv->cm.reap_task);
 		ipoib_dbg(priv, "Reap connection for gid %pI6\n",
 			  tx->neigh->daddr + 4);
 		tx->neigh = NULL;
+		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 }
 
@@ -1445,15 +1448,10 @@ static ssize_t show_mode(struct device *d, struct device_attribute *attr,
 		return sprintf(buf, "datagram\n");
 }
 
-static ssize_t set_mode(struct device *d, struct device_attribute *attr,
-			const char *buf, size_t count)
+int ipoib_set_mode(struct net_device *dev, const char *buf)
 {
-	struct net_device *dev = to_net_dev(d);
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
-	if (!rtnl_trylock())
-		return restart_syscall();
-
 	/* flush paths if we switch modes so that connections are restarted */
 	if (IPOIB_CM_SUPPORTED(dev->dev_addr) && !strcmp(buf, "connected\n")) {
 		set_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
@@ -1464,7 +1462,8 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
 		priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM;
 
 		ipoib_flush_paths(dev);
-		return count;
+		rtnl_lock();
+		return 0;
 	}
 
 	if (!strcmp(buf, "datagram\n")) {
@@ -1473,14 +1472,32 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
 		dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
 		rtnl_unlock();
 		ipoib_flush_paths(dev);
-
-		return count;
+		rtnl_lock();
+		return 0;
 	}
-	rtnl_unlock();
 
 	return -EINVAL;
 }
 
+static ssize_t set_mode(struct device *d, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct net_device *dev = to_net_dev(d);
+	int ret;
+
+	if (!rtnl_trylock())
+		return restart_syscall();
+
+	ret = ipoib_set_mode(dev, buf);
+
+	rtnl_unlock();
+
+	if (!ret)
+		return count;
+
+	return ret;
+}
+
 static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO, show_mode, set_mode);
 
 int ipoib_cm_add_mode_attr(struct net_device *dev)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 97920b77a5d..d576c7aad89 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -150,7 +150,7 @@ static int ipoib_stop(struct net_device *dev)
 
 	netif_stop_queue(dev);
 
-	ipoib_ib_dev_down(dev, 0);
+	ipoib_ib_dev_down(dev, 1);
 	ipoib_ib_dev_stop(dev, 0);
 
 	if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
@@ -173,6 +173,11 @@ static int ipoib_stop(struct net_device *dev)
 	return 0;
 }
 
+static void ipoib_uninit(struct net_device *dev)
+{
+	ipoib_dev_cleanup(dev);
+}
+
 static netdev_features_t ipoib_fix_features(struct net_device *dev, netdev_features_t features)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -546,15 +551,15 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr,
 	struct ipoib_neigh *neigh;
 	unsigned long flags;
 
+	spin_lock_irqsave(&priv->lock, flags);
 	neigh = ipoib_neigh_alloc(daddr, dev);
 	if (!neigh) {
+		spin_unlock_irqrestore(&priv->lock, flags);
 		++dev->stats.tx_dropped;
 		dev_kfree_skb_any(skb);
 		return;
 	}
 
-	spin_lock_irqsave(&priv->lock, flags);
-
 	path = __path_find(dev, daddr + 4);
 	if (!path) {
 		path = path_rec_create(dev, daddr + 4);
@@ -863,10 +868,10 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv)
 	if (test_bit(IPOIB_STOP_NEIGH_GC, &priv->flags))
 		return;
 
-	write_lock_bh(&ntbl->rwlock);
+	spin_lock_irqsave(&priv->lock, flags);
 
 	htbl = rcu_dereference_protected(ntbl->htbl,
-					 lockdep_is_held(&ntbl->rwlock));
+					 lockdep_is_held(&priv->lock));
 
 	if (!htbl)
 		goto out_unlock;
@@ -883,16 +888,14 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv)
 		struct ipoib_neigh __rcu **np = &htbl->buckets[i];
 
 		while ((neigh = rcu_dereference_protected(*np,
-							  lockdep_is_held(&ntbl->rwlock))) != NULL) {
+							  lockdep_is_held(&priv->lock))) != NULL) {
 			/* was the neigh idle for two GC periods */
 			if (time_after(neigh_obsolete, neigh->alive)) {
 				rcu_assign_pointer(*np,
 						   rcu_dereference_protected(neigh->hnext,
-									     lockdep_is_held(&ntbl->rwlock)));
+									     lockdep_is_held(&priv->lock)));
 				/* remove from path/mc list */
-				spin_lock_irqsave(&priv->lock, flags);
 				list_del(&neigh->list);
-				spin_unlock_irqrestore(&priv->lock, flags);
 				call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 			} else {
 				np = &neigh->hnext;
@@ -902,7 +905,7 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv)
 	}
 
 out_unlock:
-	write_unlock_bh(&ntbl->rwlock);
+	spin_unlock_irqrestore(&priv->lock, flags);
 }
 
 static void ipoib_reap_neigh(struct work_struct *work)
@@ -947,10 +950,8 @@ struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
 	struct ipoib_neigh *neigh;
 	u32 hash_val;
 
-	write_lock_bh(&ntbl->rwlock);
-
 	htbl = rcu_dereference_protected(ntbl->htbl,
-					 lockdep_is_held(&ntbl->rwlock));
+					 lockdep_is_held(&priv->lock));
 	if (!htbl) {
 		neigh = NULL;
 		goto out_unlock;
@@ -961,10 +962,10 @@ struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
 	 */
 	hash_val = ipoib_addr_hash(htbl, daddr);
 	for (neigh = rcu_dereference_protected(htbl->buckets[hash_val],
-					       lockdep_is_held(&ntbl->rwlock));
+					       lockdep_is_held(&priv->lock));
 	     neigh != NULL;
 	     neigh = rcu_dereference_protected(neigh->hnext,
-					       lockdep_is_held(&ntbl->rwlock))) {
+					       lockdep_is_held(&priv->lock))) {
 		if (memcmp(daddr, neigh->daddr, INFINIBAND_ALEN) == 0) {
 			/* found, take one ref on behalf of the caller */
 			if (!atomic_inc_not_zero(&neigh->refcnt)) {
@@ -987,12 +988,11 @@ struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
 	/* put in hash */
 	rcu_assign_pointer(neigh->hnext,
 			   rcu_dereference_protected(htbl->buckets[hash_val],
-						     lockdep_is_held(&ntbl->rwlock)));
+						     lockdep_is_held(&priv->lock)));
 	rcu_assign_pointer(htbl->buckets[hash_val], neigh);
 	atomic_inc(&ntbl->entries);
 
 out_unlock:
-	write_unlock_bh(&ntbl->rwlock);
 
 	return neigh;
 }
@@ -1040,35 +1040,29 @@ void ipoib_neigh_free(struct ipoib_neigh *neigh)
 	struct ipoib_neigh *n;
 	u32 hash_val;
 
-	write_lock_bh(&ntbl->rwlock);
-
 	htbl = rcu_dereference_protected(ntbl->htbl,
-					lockdep_is_held(&ntbl->rwlock));
+					lockdep_is_held(&priv->lock));
 	if (!htbl)
-		goto out_unlock;
+		return;
 
 	hash_val = ipoib_addr_hash(htbl, neigh->daddr);
 	np = &htbl->buckets[hash_val];
 	for (n = rcu_dereference_protected(*np,
-					    lockdep_is_held(&ntbl->rwlock));
+					    lockdep_is_held(&priv->lock));
 	     n != NULL;
-	     n = rcu_dereference_protected(neigh->hnext,
-					lockdep_is_held(&ntbl->rwlock))) {
+	     n = rcu_dereference_protected(*np,
+					lockdep_is_held(&priv->lock))) {
 		if (n == neigh) {
 			/* found */
 			rcu_assign_pointer(*np,
 					   rcu_dereference_protected(neigh->hnext,
-								     lockdep_is_held(&ntbl->rwlock)));
+								     lockdep_is_held(&priv->lock)));
 			call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
-			goto out_unlock;
+			return;
 		} else {
 			np = &n->hnext;
 		}
 	}
-
-out_unlock:
-	write_unlock_bh(&ntbl->rwlock);
-
 }
 
 static int ipoib_neigh_hash_init(struct ipoib_dev_priv *priv)
@@ -1080,7 +1074,6 @@ static int ipoib_neigh_hash_init(struct ipoib_dev_priv *priv)
 
 	clear_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags);
 	ntbl->htbl = NULL;
-	rwlock_init(&ntbl->rwlock);
 	htbl = kzalloc(sizeof(*htbl), GFP_KERNEL);
 	if (!htbl)
 		return -ENOMEM;
@@ -1095,6 +1088,7 @@ static int ipoib_neigh_hash_init(struct ipoib_dev_priv *priv)
 	htbl->mask = (size - 1);
 	htbl->buckets = buckets;
 	ntbl->htbl = htbl;
+	htbl->ntbl = ntbl;
 	atomic_set(&ntbl->entries, 0);
 
 	/* start garbage collection */
@@ -1111,9 +1105,11 @@ static void neigh_hash_free_rcu(struct rcu_head *head)
 						    struct ipoib_neigh_hash,
 						    rcu);
 	struct ipoib_neigh __rcu **buckets = htbl->buckets;
+	struct ipoib_neigh_table *ntbl = htbl->ntbl;
 
 	kfree(buckets);
 	kfree(htbl);
+	complete(&ntbl->deleted);
 }
 
 void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid)
@@ -1125,10 +1121,10 @@ void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid)
 	int i;
 
 	/* remove all neigh connected to a given path or mcast */
-	write_lock_bh(&ntbl->rwlock);
+	spin_lock_irqsave(&priv->lock, flags);
 
 	htbl = rcu_dereference_protected(ntbl->htbl,
-					 lockdep_is_held(&ntbl->rwlock));
+					 lockdep_is_held(&priv->lock));
 
 	if (!htbl)
 		goto out_unlock;
@@ -1138,16 +1134,14 @@ void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid)
 		struct ipoib_neigh __rcu **np = &htbl->buckets[i];
 
 		while ((neigh = rcu_dereference_protected(*np,
-							  lockdep_is_held(&ntbl->rwlock))) != NULL) {
+							  lockdep_is_held(&priv->lock))) != NULL) {
 			/* delete neighs belong to this parent */
 			if (!memcmp(gid, neigh->daddr + 4, sizeof (union ib_gid))) {
 				rcu_assign_pointer(*np,
 						   rcu_dereference_protected(neigh->hnext,
-									     lockdep_is_held(&ntbl->rwlock)));
+									     lockdep_is_held(&priv->lock)));
 				/* remove from parent list */
-				spin_lock_irqsave(&priv->lock, flags);
 				list_del(&neigh->list);
-				spin_unlock_irqrestore(&priv->lock, flags);
 				call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 			} else {
 				np = &neigh->hnext;
@@ -1156,7 +1150,7 @@ void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid)
 		}
 	}
 out_unlock:
-	write_unlock_bh(&ntbl->rwlock);
+	spin_unlock_irqrestore(&priv->lock, flags);
 }
 
 static void ipoib_flush_neighs(struct ipoib_dev_priv *priv)
@@ -1164,37 +1158,44 @@ static void ipoib_flush_neighs(struct ipoib_dev_priv *priv)
 	struct ipoib_neigh_table *ntbl = &priv->ntbl;
 	struct ipoib_neigh_hash *htbl;
 	unsigned long flags;
-	int i;
+	int i, wait_flushed = 0;
 
-	write_lock_bh(&ntbl->rwlock);
+	init_completion(&priv->ntbl.flushed);
+
+	spin_lock_irqsave(&priv->lock, flags);
 
 	htbl = rcu_dereference_protected(ntbl->htbl,
-					lockdep_is_held(&ntbl->rwlock));
+					lockdep_is_held(&priv->lock));
 	if (!htbl)
 		goto out_unlock;
 
+	wait_flushed = atomic_read(&priv->ntbl.entries);
+	if (!wait_flushed)
+		goto free_htbl;
+
 	for (i = 0; i < htbl->size; i++) {
 		struct ipoib_neigh *neigh;
 		struct ipoib_neigh __rcu **np = &htbl->buckets[i];
 
 		while ((neigh = rcu_dereference_protected(*np,
-							  lockdep_is_held(&ntbl->rwlock))) != NULL) {
+				       lockdep_is_held(&priv->lock))) != NULL) {
 			rcu_assign_pointer(*np,
 					   rcu_dereference_protected(neigh->hnext,
-								     lockdep_is_held(&ntbl->rwlock)));
+								     lockdep_is_held(&priv->lock)));
 			/* remove from path/mc list */
-			spin_lock_irqsave(&priv->lock, flags);
 			list_del(&neigh->list);
-			spin_unlock_irqrestore(&priv->lock, flags);
 			call_rcu(&neigh->rcu, ipoib_neigh_reclaim);
 		}
 	}
 
+free_htbl:
 	rcu_assign_pointer(ntbl->htbl, NULL);
 	call_rcu(&htbl->rcu, neigh_hash_free_rcu);
 
 out_unlock:
-	write_unlock_bh(&ntbl->rwlock);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	if (wait_flushed)
+		wait_for_completion(&priv->ntbl.flushed);
 }
 
 static void ipoib_neigh_hash_uninit(struct net_device *dev)
@@ -1203,7 +1204,7 @@ static void ipoib_neigh_hash_uninit(struct net_device *dev)
 	int stopped;
 
 	ipoib_dbg(priv, "ipoib_neigh_hash_uninit\n");
-	init_completion(&priv->ntbl.flushed);
+	init_completion(&priv->ntbl.deleted);
 	set_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags);
 
 	/* Stop GC if called at init fail need to cancel work */
@@ -1211,10 +1212,9 @@ static void ipoib_neigh_hash_uninit(struct net_device *dev)
 	if (!stopped)
 		cancel_delayed_work(&priv->neigh_reap_task);
 
-	if (atomic_read(&priv->ntbl.entries)) {
-		ipoib_flush_neighs(priv);
-		wait_for_completion(&priv->ntbl.flushed);
-	}
+	ipoib_flush_neighs(priv);
+
+	wait_for_completion(&priv->ntbl.deleted);
 }
 
 
@@ -1262,6 +1262,9 @@ out:
 void ipoib_dev_cleanup(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev), *cpriv, *tcpriv;
+	LIST_HEAD(head);
+
+	ASSERT_RTNL();
 
 	ipoib_delete_debug_files(dev);
 
@@ -1270,10 +1273,9 @@ void ipoib_dev_cleanup(struct net_device *dev)
 		/* Stop GC on child */
 		set_bit(IPOIB_STOP_NEIGH_GC, &cpriv->flags);
 		cancel_delayed_work(&cpriv->neigh_reap_task);
-		unregister_netdev(cpriv->dev);
-		ipoib_dev_cleanup(cpriv->dev);
-		free_netdev(cpriv->dev);
+		unregister_netdevice_queue(cpriv->dev, &head);
 	}
+	unregister_netdevice_many(&head);
 
 	ipoib_ib_dev_cleanup(dev);
 
@@ -1291,6 +1293,7 @@ static const struct header_ops ipoib_header_ops = {
 };
 
 static const struct net_device_ops ipoib_netdev_ops = {
+	.ndo_uninit		 = ipoib_uninit,
 	.ndo_open		 = ipoib_open,
 	.ndo_stop		 = ipoib_stop,
 	.ndo_change_mtu		 = ipoib_change_mtu,
@@ -1300,7 +1303,7 @@ static const struct net_device_ops ipoib_netdev_ops = {
 	.ndo_set_rx_mode	 = ipoib_set_mcast_list,
 };
 
-static void ipoib_setup(struct net_device *dev)
+void ipoib_setup(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
@@ -1378,12 +1381,9 @@ static ssize_t show_umcast(struct device *dev,
 	return sprintf(buf, "%d\n", test_bit(IPOIB_FLAG_UMCAST, &priv->flags));
 }
 
-static ssize_t set_umcast(struct device *dev,
-			  struct device_attribute *attr,
-			  const char *buf, size_t count)
+void ipoib_set_umcast(struct net_device *ndev, int umcast_val)
 {
-	struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(dev));
-	unsigned long umcast_val = simple_strtoul(buf, NULL, 0);
+	struct ipoib_dev_priv *priv = netdev_priv(ndev);
 
 	if (umcast_val > 0) {
 		set_bit(IPOIB_FLAG_UMCAST, &priv->flags);
@@ -1391,6 +1391,15 @@ static ssize_t set_umcast(struct device *dev,
 				"by userspace\n");
 	} else
 		clear_bit(IPOIB_FLAG_UMCAST, &priv->flags);
+}
+
+static ssize_t set_umcast(struct device *dev,
+			  struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	unsigned long umcast_val = simple_strtoul(buf, NULL, 0);
+
+	ipoib_set_umcast(to_net_dev(dev), umcast_val);
 
 	return count;
 }
@@ -1662,7 +1671,6 @@ static void ipoib_remove_one(struct ib_device *device)
 		flush_workqueue(ipoib_workqueue);
 
 		unregister_netdev(priv->dev);
-		ipoib_dev_cleanup(priv->dev);
 		free_netdev(priv->dev);
 	}
 
@@ -1714,8 +1722,15 @@ static int __init ipoib_init_module(void)
 	if (ret)
 		goto err_sa;
 
+	ret = ipoib_netlink_init();
+	if (ret)
+		goto err_client;
+
 	return 0;
 
+err_client:
+	ib_unregister_client(&ipoib_client);
+
 err_sa:
 	ib_sa_unregister_client(&ipoib_sa_client);
 	destroy_workqueue(ipoib_workqueue);
@@ -1728,6 +1743,7 @@ err_fs:
 
 static void __exit ipoib_cleanup_module(void)
 {
+	ipoib_netlink_fini();
 	ib_unregister_client(&ipoib_client);
 	ib_sa_unregister_client(&ipoib_sa_client);
 	ipoib_unregister_debugfs();
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 13f4aa7593c..cecb98a4c66 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -175,7 +175,9 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
 
 	mcast->mcmember = *mcmember;
 
-	/* Set the cached Q_Key before we attach if it's the broadcast group */
+	/* Set the multicast MTU and cached Q_Key before we attach if it's
+	 * the broadcast group.
+	 */
 	if (!memcmp(mcast->mcmember.mgid.raw, priv->dev->broadcast + 4,
 		    sizeof (union ib_gid))) {
 		spin_lock_irq(&priv->lock);
@@ -183,10 +185,17 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
 			spin_unlock_irq(&priv->lock);
 			return -EAGAIN;
 		}
+		priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
 		priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey);
 		spin_unlock_irq(&priv->lock);
 		priv->tx_wr.wr.ud.remote_qkey = priv->qkey;
 		set_qkey = 1;
+
+		if (!ipoib_cm_admin_enabled(dev)) {
+			rtnl_lock();
+			dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu));
+			rtnl_unlock();
+		}
 	}
 
 	if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
@@ -574,14 +583,6 @@ void ipoib_mcast_join_task(struct work_struct *work)
 		return;
 	}
 
-	priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
-
-	if (!ipoib_cm_admin_enabled(dev)) {
-		rtnl_lock();
-		dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu));
-		rtnl_unlock();
-	}
-
 	ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n");
 
 	clear_bit(IPOIB_MCAST_RUN, &priv->flags);
@@ -707,9 +708,7 @@ out:
 		neigh = ipoib_neigh_get(dev, daddr);
 		spin_lock_irqsave(&priv->lock, flags);
 		if (!neigh) {
-			spin_unlock_irqrestore(&priv->lock, flags);
 			neigh = ipoib_neigh_alloc(daddr, dev);
-			spin_lock_irqsave(&priv->lock, flags);
 			if (neigh) {
 				kref_get(&mcast->ah->ref);
 				neigh->ah	= mcast->ah;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
new file mode 100644
index 00000000000..74685936c94
--- /dev/null
+++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2012 Mellanox Technologies. -  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/module.h>
+#include <net/rtnetlink.h>
+#include "ipoib.h"
+
+static const struct nla_policy ipoib_policy[IFLA_IPOIB_MAX + 1] = {
+	[IFLA_IPOIB_PKEY]	= { .type = NLA_U16 },
+	[IFLA_IPOIB_MODE]	= { .type = NLA_U16 },
+	[IFLA_IPOIB_UMCAST]	= { .type = NLA_U16 },
+};
+
+static int ipoib_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct ipoib_dev_priv *priv = netdev_priv(dev);
+	u16 val;
+
+	if (nla_put_u16(skb, IFLA_IPOIB_PKEY, priv->pkey))
+		goto nla_put_failure;
+
+	val = test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
+	if (nla_put_u16(skb, IFLA_IPOIB_MODE, val))
+		goto nla_put_failure;
+
+	val = test_bit(IPOIB_FLAG_UMCAST, &priv->flags);
+	if (nla_put_u16(skb, IFLA_IPOIB_UMCAST, val))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static int ipoib_changelink(struct net_device *dev,
+			    struct nlattr *tb[], struct nlattr *data[])
+{
+	u16 mode, umcast;
+	int ret = 0;
+
+	if (data[IFLA_IPOIB_MODE]) {
+		mode  = nla_get_u16(data[IFLA_IPOIB_MODE]);
+		if (mode == IPOIB_MODE_DATAGRAM)
+			ret = ipoib_set_mode(dev, "datagram\n");
+		else if (mode == IPOIB_MODE_CONNECTED)
+			ret = ipoib_set_mode(dev, "connected\n");
+		else
+			ret = -EINVAL;
+
+		if (ret < 0)
+			goto out_err;
+	}
+
+	if (data[IFLA_IPOIB_UMCAST]) {
+		umcast = nla_get_u16(data[IFLA_IPOIB_UMCAST]);
+		ipoib_set_umcast(dev, umcast);
+	}
+
+out_err:
+	return ret;
+}
+
+static int ipoib_new_child_link(struct net *src_net, struct net_device *dev,
+			       struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net_device *pdev;
+	struct ipoib_dev_priv *ppriv;
+	u16 child_pkey;
+	int err;
+
+	if (!tb[IFLA_LINK])
+		return -EINVAL;
+
+	pdev = __dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
+	if (!pdev)
+		return -ENODEV;
+
+	ppriv = netdev_priv(pdev);
+
+	if (test_bit(IPOIB_FLAG_SUBINTERFACE, &ppriv->flags)) {
+		ipoib_warn(ppriv, "child creation disallowed for child devices\n");
+		return -EINVAL;
+	}
+
+	if (!data || !data[IFLA_IPOIB_PKEY]) {
+		ipoib_dbg(ppriv, "no pkey specified, using parent pkey\n");
+		child_pkey  = ppriv->pkey;
+	} else
+		child_pkey  = nla_get_u16(data[IFLA_IPOIB_PKEY]);
+
+	err = __ipoib_vlan_add(ppriv, netdev_priv(dev), child_pkey, IPOIB_RTNL_CHILD);
+
+	if (!err && data)
+		err = ipoib_changelink(dev, tb, data);
+	return err;
+}
+
+static void ipoib_unregister_child_dev(struct net_device *dev, struct list_head *head)
+{
+	struct ipoib_dev_priv *priv, *ppriv;
+
+	priv = netdev_priv(dev);
+	ppriv = netdev_priv(priv->parent);
+
+	mutex_lock(&ppriv->vlan_mutex);
+	unregister_netdevice_queue(dev, head);
+	list_del(&priv->list);
+	mutex_unlock(&ppriv->vlan_mutex);
+}
+
+static size_t ipoib_get_size(const struct net_device *dev)
+{
+	return nla_total_size(2) +	/* IFLA_IPOIB_PKEY   */
+		nla_total_size(2) +	/* IFLA_IPOIB_MODE   */
+		nla_total_size(2);	/* IFLA_IPOIB_UMCAST */
+}
+
+static struct rtnl_link_ops ipoib_link_ops __read_mostly = {
+	.kind		= "ipoib",
+	.maxtype	= IFLA_IPOIB_MAX,
+	.policy		= ipoib_policy,
+	.priv_size	= sizeof(struct ipoib_dev_priv),
+	.setup		= ipoib_setup,
+	.newlink	= ipoib_new_child_link,
+	.changelink	= ipoib_changelink,
+	.dellink	= ipoib_unregister_child_dev,
+	.get_size	= ipoib_get_size,
+	.fill_info	= ipoib_fill_info,
+};
+
+int __init ipoib_netlink_init(void)
+{
+	return rtnl_link_register(&ipoib_link_ops);
+}
+
+void __exit ipoib_netlink_fini(void)
+{
+	rtnl_link_unregister(&ipoib_link_ops);
+}
+
+MODULE_ALIAS_RTNL_LINK("ipoib");
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index d7e9740c724..8292554bccb 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -49,47 +49,11 @@ static ssize_t show_parent(struct device *d, struct device_attribute *attr,
 }
 static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL);
 
-int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
+int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
+		     u16 pkey, int type)
 {
-	struct ipoib_dev_priv *ppriv, *priv;
-	char intf_name[IFNAMSIZ];
 	int result;
 
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	ppriv = netdev_priv(pdev);
-
-	if (!rtnl_trylock())
-		return restart_syscall();
-	mutex_lock(&ppriv->vlan_mutex);
-
-	/*
-	 * First ensure this isn't a duplicate. We check the parent device and
-	 * then all of the child interfaces to make sure the Pkey doesn't match.
-	 */
-	if (ppriv->pkey == pkey) {
-		result = -ENOTUNIQ;
-		priv = NULL;
-		goto err;
-	}
-
-	list_for_each_entry(priv, &ppriv->child_intfs, list) {
-		if (priv->pkey == pkey) {
-			result = -ENOTUNIQ;
-			priv = NULL;
-			goto err;
-		}
-	}
-
-	snprintf(intf_name, sizeof intf_name, "%s.%04x",
-		 ppriv->dev->name, pkey);
-	priv = ipoib_intf_alloc(intf_name);
-	if (!priv) {
-		result = -ENOMEM;
-		goto err;
-	}
-
 	priv->max_ib_mtu = ppriv->max_ib_mtu;
 	/* MTU will be reset when mcast join happens */
 	priv->dev->mtu   = IPOIB_UD_MTU(priv->max_ib_mtu);
@@ -124,24 +88,27 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
 
 	ipoib_create_debug_files(priv->dev);
 
-	if (ipoib_cm_add_mode_attr(priv->dev))
-		goto sysfs_failed;
-	if (ipoib_add_pkey_attr(priv->dev))
-		goto sysfs_failed;
-	if (ipoib_add_umcast_attr(priv->dev))
-		goto sysfs_failed;
-
-	if (device_create_file(&priv->dev->dev, &dev_attr_parent))
-		goto sysfs_failed;
+	/* RTNL childs don't need proprietary sysfs entries */
+	if (type == IPOIB_LEGACY_CHILD) {
+		if (ipoib_cm_add_mode_attr(priv->dev))
+			goto sysfs_failed;
+		if (ipoib_add_pkey_attr(priv->dev))
+			goto sysfs_failed;
+		if (ipoib_add_umcast_attr(priv->dev))
+			goto sysfs_failed;
+
+		if (device_create_file(&priv->dev->dev, &dev_attr_parent))
+			goto sysfs_failed;
+	}
 
+	priv->child_type  = type;
+	priv->dev->iflink = ppriv->dev->ifindex;
 	list_add_tail(&priv->list, &ppriv->child_intfs);
 
-	mutex_unlock(&ppriv->vlan_mutex);
-	rtnl_unlock();
-
 	return 0;
 
 sysfs_failed:
+	result = -ENOMEM;
 	ipoib_delete_debug_files(priv->dev);
 	unregister_netdevice(priv->dev);
 
@@ -149,11 +116,60 @@ register_failed:
 	ipoib_dev_cleanup(priv->dev);
 
 err:
+	return result;
+}
+
+int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
+{
+	struct ipoib_dev_priv *ppriv, *priv;
+	char intf_name[IFNAMSIZ];
+	struct ipoib_dev_priv *tpriv;
+	int result;
+
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
+	ppriv = netdev_priv(pdev);
+
+	snprintf(intf_name, sizeof intf_name, "%s.%04x",
+		 ppriv->dev->name, pkey);
+	priv = ipoib_intf_alloc(intf_name);
+	if (!priv)
+		return -ENOMEM;
+
+	if (!rtnl_trylock())
+		return restart_syscall();
+
+	mutex_lock(&ppriv->vlan_mutex);
+
+	/*
+	 * First ensure this isn't a duplicate. We check the parent device and
+	 * then all of the legacy child interfaces to make sure the Pkey
+	 * doesn't match.
+	 */
+	if (ppriv->pkey == pkey) {
+		result = -ENOTUNIQ;
+		goto out;
+	}
+
+	list_for_each_entry(tpriv, &ppriv->child_intfs, list) {
+		if (tpriv->pkey == pkey &&
+		    tpriv->child_type == IPOIB_LEGACY_CHILD) {
+			result = -ENOTUNIQ;
+			goto out;
+		}
+	}
+
+	result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD);
+
+out:
 	mutex_unlock(&ppriv->vlan_mutex);
-	rtnl_unlock();
-	if (priv)
+
+	if (result)
 		free_netdev(priv->dev);
 
+	rtnl_unlock();
+
 	return result;
 }
 
@@ -171,9 +187,9 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
 		return restart_syscall();
 	mutex_lock(&ppriv->vlan_mutex);
 	list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
-		if (priv->pkey == pkey) {
+		if (priv->pkey == pkey &&
+		    priv->child_type == IPOIB_LEGACY_CHILD) {
 			unregister_netdevice(priv->dev);
-			ipoib_dev_cleanup(priv->dev);
 			list_del(&priv->list);
 			dev = priv->dev;
 			break;
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index bcbf22ee0aa..922d845f76b 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -586,24 +586,62 @@ static void srp_unmap_data(struct scsi_cmnd *scmnd,
 			scmnd->sc_data_direction);
 }
 
-static void srp_remove_req(struct srp_target_port *target,
-			   struct srp_request *req, s32 req_lim_delta)
+/**
+ * srp_claim_req - Take ownership of the scmnd associated with a request.
+ * @target: SRP target port.
+ * @req: SRP request.
+ * @scmnd: If NULL, take ownership of @req->scmnd. If not NULL, only take
+ *         ownership of @req->scmnd if it equals @scmnd.
+ *
+ * Return value:
+ * Either NULL or a pointer to the SCSI command the caller became owner of.
+ */
+static struct scsi_cmnd *srp_claim_req(struct srp_target_port *target,
+				       struct srp_request *req,
+				       struct scsi_cmnd *scmnd)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&target->lock, flags);
+	if (!scmnd) {
+		scmnd = req->scmnd;
+		req->scmnd = NULL;
+	} else if (req->scmnd == scmnd) {
+		req->scmnd = NULL;
+	} else {
+		scmnd = NULL;
+	}
+	spin_unlock_irqrestore(&target->lock, flags);
+
+	return scmnd;
+}
+
+/**
+ * srp_free_req() - Unmap data and add request to the free request list.
+ */
+static void srp_free_req(struct srp_target_port *target,
+			 struct srp_request *req, struct scsi_cmnd *scmnd,
+			 s32 req_lim_delta)
 {
 	unsigned long flags;
 
-	srp_unmap_data(req->scmnd, target, req);
+	srp_unmap_data(scmnd, target, req);
+
 	spin_lock_irqsave(&target->lock, flags);
 	target->req_lim += req_lim_delta;
-	req->scmnd = NULL;
 	list_add_tail(&req->list, &target->free_reqs);
 	spin_unlock_irqrestore(&target->lock, flags);
 }
 
 static void srp_reset_req(struct srp_target_port *target, struct srp_request *req)
 {
-	req->scmnd->result = DID_RESET << 16;
-	req->scmnd->scsi_done(req->scmnd);
-	srp_remove_req(target, req, 0);
+	struct scsi_cmnd *scmnd = srp_claim_req(target, req, NULL);
+
+	if (scmnd) {
+		srp_free_req(target, req, scmnd, 0);
+		scmnd->result = DID_RESET << 16;
+		scmnd->scsi_done(scmnd);
+	}
 }
 
 static int srp_reconnect_target(struct srp_target_port *target)
@@ -1073,11 +1111,18 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
 		complete(&target->tsk_mgmt_done);
 	} else {
 		req = &target->req_ring[rsp->tag];
-		scmnd = req->scmnd;
-		if (!scmnd)
+		scmnd = srp_claim_req(target, req, NULL);
+		if (!scmnd) {
 			shost_printk(KERN_ERR, target->scsi_host,
 				     "Null scmnd for RSP w/tag %016llx\n",
 				     (unsigned long long) rsp->tag);
+
+			spin_lock_irqsave(&target->lock, flags);
+			target->req_lim += be32_to_cpu(rsp->req_lim_delta);
+			spin_unlock_irqrestore(&target->lock, flags);
+
+			return;
+		}
 		scmnd->result = rsp->status;
 
 		if (rsp->flags & SRP_RSP_FLAG_SNSVALID) {
@@ -1092,7 +1137,9 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
 		else if (rsp->flags & (SRP_RSP_FLAG_DIOVER | SRP_RSP_FLAG_DIUNDER))
 			scsi_set_resid(scmnd, be32_to_cpu(rsp->data_in_res_cnt));
 
-		srp_remove_req(target, req, be32_to_cpu(rsp->req_lim_delta));
+		srp_free_req(target, req, scmnd,
+			     be32_to_cpu(rsp->req_lim_delta));
+
 		scmnd->host_scribble = NULL;
 		scmnd->scsi_done(scmnd);
 	}
@@ -1631,25 +1678,18 @@ static int srp_abort(struct scsi_cmnd *scmnd)
 {
 	struct srp_target_port *target = host_to_target(scmnd->device->host);
 	struct srp_request *req = (struct srp_request *) scmnd->host_scribble;
-	int ret = SUCCESS;
 
 	shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n");
 
-	if (!req || target->qp_in_error)
+	if (!req || target->qp_in_error || !srp_claim_req(target, req, scmnd))
 		return FAILED;
-	if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
-			      SRP_TSK_ABORT_TASK))
-		return FAILED;
-
-	if (req->scmnd) {
-		if (!target->tsk_mgmt_status) {
-			srp_remove_req(target, req, 0);
-			scmnd->result = DID_ABORT << 16;
-		} else
-			ret = FAILED;
-	}
+	srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
+			  SRP_TSK_ABORT_TASK);
+	srp_free_req(target, req, scmnd, 0);
+	scmnd->result = DID_ABORT << 16;
+	scmnd->scsi_done(scmnd);
 
-	return ret;
+	return SUCCESS;
 }
 
 static int srp_reset_device(struct scsi_cmnd *scmnd)
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 7a0ce8d4288..9e1449f8c6a 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1469,7 +1469,7 @@ static void srpt_handle_send_comp(struct srpt_rdma_ch *ch,
  *
  * XXX: what is now target_execute_cmd used to be asynchronous, and unmapping
  * the data that has been transferred via IB RDMA had to be postponed until the
- * check_stop_free() callback.  None of this is nessecary anymore and needs to
+ * check_stop_free() callback.  None of this is necessary anymore and needs to
  * be cleaned up.
  */
 static void srpt_handle_rdma_comp(struct srpt_rdma_ch *ch,
diff --git a/drivers/input/apm-power.c b/drivers/input/apm-power.c
index e90ee3d3061..650177a3c85 100644
--- a/drivers/input/apm-power.c
+++ b/drivers/input/apm-power.c
@@ -33,7 +33,7 @@ static void system_power_event(unsigned int keycode)
 }
 
 static void apmpower_event(struct input_handle *handle, unsigned int type,
-		        unsigned int code, int value)
+			   unsigned int code, int value)
 {
 	/* only react on key down events */
 	if (value != 1)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 6c58bfff01a..118d0300f1f 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -54,16 +54,9 @@ struct evdev_client {
 static struct evdev *evdev_table[EVDEV_MINORS];
 static DEFINE_MUTEX(evdev_table_mutex);
 
-static void evdev_pass_event(struct evdev_client *client,
-			     struct input_event *event,
-			     ktime_t mono, ktime_t real)
+static void __pass_event(struct evdev_client *client,
+			 const struct input_event *event)
 {
-	event->time = ktime_to_timeval(client->clkid == CLOCK_MONOTONIC ?
-					mono : real);
-
-	/* Interrupts are disabled, just acquire the lock. */
-	spin_lock(&client->buffer_lock);
-
 	client->buffer[client->head++] = *event;
 	client->head &= client->bufsize - 1;
 
@@ -86,42 +79,74 @@ static void evdev_pass_event(struct evdev_client *client,
 		client->packet_head = client->head;
 		kill_fasync(&client->fasync, SIGIO, POLL_IN);
 	}
+}
+
+static void evdev_pass_values(struct evdev_client *client,
+			const struct input_value *vals, unsigned int count,
+			ktime_t mono, ktime_t real)
+{
+	struct evdev *evdev = client->evdev;
+	const struct input_value *v;
+	struct input_event event;
+	bool wakeup = false;
+
+	event.time = ktime_to_timeval(client->clkid == CLOCK_MONOTONIC ?
+				      mono : real);
+
+	/* Interrupts are disabled, just acquire the lock. */
+	spin_lock(&client->buffer_lock);
+
+	for (v = vals; v != vals + count; v++) {
+		event.type = v->type;
+		event.code = v->code;
+		event.value = v->value;
+		__pass_event(client, &event);
+		if (v->type == EV_SYN && v->code == SYN_REPORT)
+			wakeup = true;
+	}
 
 	spin_unlock(&client->buffer_lock);
+
+	if (wakeup)
+		wake_up_interruptible(&evdev->wait);
 }
 
 /*
- * Pass incoming event to all connected clients.
+ * Pass incoming events to all connected clients.
  */
-static void evdev_event(struct input_handle *handle,
-			unsigned int type, unsigned int code, int value)
+static void evdev_events(struct input_handle *handle,
+			 const struct input_value *vals, unsigned int count)
 {
 	struct evdev *evdev = handle->private;
 	struct evdev_client *client;
-	struct input_event event;
 	ktime_t time_mono, time_real;
 
 	time_mono = ktime_get();
 	time_real = ktime_sub(time_mono, ktime_get_monotonic_offset());
 
-	event.type = type;
-	event.code = code;
-	event.value = value;
-
 	rcu_read_lock();
 
 	client = rcu_dereference(evdev->grab);
 
 	if (client)
-		evdev_pass_event(client, &event, time_mono, time_real);
+		evdev_pass_values(client, vals, count, time_mono, time_real);
 	else
 		list_for_each_entry_rcu(client, &evdev->client_list, node)
-			evdev_pass_event(client, &event, time_mono, time_real);
+			evdev_pass_values(client, vals, count,
+					  time_mono, time_real);
 
 	rcu_read_unlock();
+}
 
-	if (type == EV_SYN && code == SYN_REPORT)
-		wake_up_interruptible(&evdev->wait);
+/*
+ * Pass incoming event to all connected clients.
+ */
+static void evdev_event(struct input_handle *handle,
+			unsigned int type, unsigned int code, int value)
+{
+	struct input_value vals[] = { { type, code, value } };
+
+	evdev_events(handle, vals, 1);
 }
 
 static int evdev_fasync(int fd, struct file *file, int on)
@@ -653,20 +678,22 @@ static int evdev_handle_mt_request(struct input_dev *dev,
 				   unsigned int size,
 				   int __user *ip)
 {
-	const struct input_mt_slot *mt = dev->mt;
+	const struct input_mt *mt = dev->mt;
 	unsigned int code;
 	int max_slots;
 	int i;
 
 	if (get_user(code, &ip[0]))
 		return -EFAULT;
-	if (!input_is_mt_value(code))
+	if (!mt || !input_is_mt_value(code))
 		return -EINVAL;
 
 	max_slots = (size - sizeof(__u32)) / sizeof(__s32);
-	for (i = 0; i < dev->mtsize && i < max_slots; i++)
-		if (put_user(input_mt_get_value(&mt[i], code), &ip[1 + i]))
+	for (i = 0; i < mt->num_slots && i < max_slots; i++) {
+		int value = input_mt_get_value(&mt->slots[i], code);
+		if (put_user(value, &ip[1 + i]))
 			return -EFAULT;
+	}
 
 	return 0;
 }
@@ -1048,6 +1075,7 @@ MODULE_DEVICE_TABLE(input, evdev_ids);
 
 static struct input_handler evdev_handler = {
 	.event		= evdev_event,
+	.events		= evdev_events,
 	.connect	= evdev_connect,
 	.disconnect	= evdev_disconnect,
 	.fops		= &evdev_fops,
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index 480eb9d9876..f50f6dd9227 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -138,8 +138,8 @@ int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
 
 	if (effect->id == -1) {
 		for (id = 0; id < ff->max_effects; id++)
-		     if (!ff->effect_owners[id])
-			break;
+			if (!ff->effect_owners[id])
+				break;
 
 		if (id >= ff->max_effects) {
 			ret = -ENOSPC;
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index b107922514f..74c0d8c6002 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -72,12 +72,14 @@ static const struct ff_envelope *get_envelope(const struct ff_effect *effect)
 	static const struct ff_envelope empty_envelope;
 
 	switch (effect->type) {
-		case FF_PERIODIC:
-			return &effect->u.periodic.envelope;
-		case FF_CONSTANT:
-			return &effect->u.constant.envelope;
-		default:
-			return &empty_envelope;
+	case FF_PERIODIC:
+		return &effect->u.periodic.envelope;
+
+	case FF_CONSTANT:
+		return &effect->u.constant.envelope;
+
+	default:
+		return &empty_envelope;
 	}
 }
 
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index 70a16c7da8c..c0ec7d42c3b 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -14,6 +14,14 @@
 
 #define TRKID_SGN	((TRKID_MAX + 1) >> 1)
 
+static void copy_abs(struct input_dev *dev, unsigned int dst, unsigned int src)
+{
+	if (dev->absinfo && test_bit(src, dev->absbit)) {
+		dev->absinfo[dst] = dev->absinfo[src];
+		dev->absbit[BIT_WORD(dst)] |= BIT_MASK(dst);
+	}
+}
+
 /**
  * input_mt_init_slots() - initialize MT input slots
  * @dev: input device supporting MT events and finger tracking
@@ -25,29 +33,63 @@
  * May be called repeatedly. Returns -EINVAL if attempting to
  * reinitialize with a different number of slots.
  */
-int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots)
+int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
+			unsigned int flags)
 {
+	struct input_mt *mt = dev->mt;
 	int i;
 
 	if (!num_slots)
 		return 0;
-	if (dev->mt)
-		return dev->mtsize != num_slots ? -EINVAL : 0;
+	if (mt)
+		return mt->num_slots != num_slots ? -EINVAL : 0;
 
-	dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL);
-	if (!dev->mt)
-		return -ENOMEM;
+	mt = kzalloc(sizeof(*mt) + num_slots * sizeof(*mt->slots), GFP_KERNEL);
+	if (!mt)
+		goto err_mem;
 
-	dev->mtsize = num_slots;
+	mt->num_slots = num_slots;
+	mt->flags = flags;
 	input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0);
 	input_set_abs_params(dev, ABS_MT_TRACKING_ID, 0, TRKID_MAX, 0, 0);
-	input_set_events_per_packet(dev, 6 * num_slots);
+
+	if (flags & (INPUT_MT_POINTER | INPUT_MT_DIRECT)) {
+		__set_bit(EV_KEY, dev->evbit);
+		__set_bit(BTN_TOUCH, dev->keybit);
+
+		copy_abs(dev, ABS_X, ABS_MT_POSITION_X);
+		copy_abs(dev, ABS_Y, ABS_MT_POSITION_Y);
+		copy_abs(dev, ABS_PRESSURE, ABS_MT_PRESSURE);
+	}
+	if (flags & INPUT_MT_POINTER) {
+		__set_bit(BTN_TOOL_FINGER, dev->keybit);
+		__set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+		if (num_slots >= 3)
+			__set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
+		if (num_slots >= 4)
+			__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
+		if (num_slots >= 5)
+			__set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
+		__set_bit(INPUT_PROP_POINTER, dev->propbit);
+	}
+	if (flags & INPUT_MT_DIRECT)
+		__set_bit(INPUT_PROP_DIRECT, dev->propbit);
+	if (flags & INPUT_MT_TRACK) {
+		unsigned int n2 = num_slots * num_slots;
+		mt->red = kcalloc(n2, sizeof(*mt->red), GFP_KERNEL);
+		if (!mt->red)
+			goto err_mem;
+	}
 
 	/* Mark slots as 'unused' */
 	for (i = 0; i < num_slots; i++)
-		input_mt_set_value(&dev->mt[i], ABS_MT_TRACKING_ID, -1);
+		input_mt_set_value(&mt->slots[i], ABS_MT_TRACKING_ID, -1);
 
+	dev->mt = mt;
 	return 0;
+err_mem:
+	kfree(mt);
+	return -ENOMEM;
 }
 EXPORT_SYMBOL(input_mt_init_slots);
 
@@ -60,11 +102,11 @@ EXPORT_SYMBOL(input_mt_init_slots);
  */
 void input_mt_destroy_slots(struct input_dev *dev)
 {
-	kfree(dev->mt);
+	if (dev->mt) {
+		kfree(dev->mt->red);
+		kfree(dev->mt);
+	}
 	dev->mt = NULL;
-	dev->mtsize = 0;
-	dev->slot = 0;
-	dev->trkid = 0;
 }
 EXPORT_SYMBOL(input_mt_destroy_slots);
 
@@ -83,18 +125,24 @@ EXPORT_SYMBOL(input_mt_destroy_slots);
 void input_mt_report_slot_state(struct input_dev *dev,
 				unsigned int tool_type, bool active)
 {
-	struct input_mt_slot *mt;
+	struct input_mt *mt = dev->mt;
+	struct input_mt_slot *slot;
 	int id;
 
-	if (!dev->mt || !active) {
+	if (!mt)
+		return;
+
+	slot = &mt->slots[mt->slot];
+	slot->frame = mt->frame;
+
+	if (!active) {
 		input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
 		return;
 	}
 
-	mt = &dev->mt[dev->slot];
-	id = input_mt_get_value(mt, ABS_MT_TRACKING_ID);
-	if (id < 0 || input_mt_get_value(mt, ABS_MT_TOOL_TYPE) != tool_type)
-		id = input_mt_new_trkid(dev);
+	id = input_mt_get_value(slot, ABS_MT_TRACKING_ID);
+	if (id < 0 || input_mt_get_value(slot, ABS_MT_TOOL_TYPE) != tool_type)
+		id = input_mt_new_trkid(mt);
 
 	input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, id);
 	input_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, tool_type);
@@ -135,13 +183,19 @@ EXPORT_SYMBOL(input_mt_report_finger_count);
  */
 void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count)
 {
-	struct input_mt_slot *oldest = NULL;
-	int oldid = dev->trkid;
-	int count = 0;
-	int i;
+	struct input_mt *mt = dev->mt;
+	struct input_mt_slot *oldest;
+	int oldid, count, i;
+
+	if (!mt)
+		return;
+
+	oldest = 0;
+	oldid = mt->trkid;
+	count = 0;
 
-	for (i = 0; i < dev->mtsize; ++i) {
-		struct input_mt_slot *ps = &dev->mt[i];
+	for (i = 0; i < mt->num_slots; ++i) {
+		struct input_mt_slot *ps = &mt->slots[i];
 		int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
 
 		if (id < 0)
@@ -160,13 +214,208 @@ void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count)
 	if (oldest) {
 		int x = input_mt_get_value(oldest, ABS_MT_POSITION_X);
 		int y = input_mt_get_value(oldest, ABS_MT_POSITION_Y);
-		int p = input_mt_get_value(oldest, ABS_MT_PRESSURE);
 
 		input_event(dev, EV_ABS, ABS_X, x);
 		input_event(dev, EV_ABS, ABS_Y, y);
-		input_event(dev, EV_ABS, ABS_PRESSURE, p);
+
+		if (test_bit(ABS_MT_PRESSURE, dev->absbit)) {
+			int p = input_mt_get_value(oldest, ABS_MT_PRESSURE);
+			input_event(dev, EV_ABS, ABS_PRESSURE, p);
+		}
 	} else {
-		input_event(dev, EV_ABS, ABS_PRESSURE, 0);
+		if (test_bit(ABS_MT_PRESSURE, dev->absbit))
+			input_event(dev, EV_ABS, ABS_PRESSURE, 0);
 	}
 }
 EXPORT_SYMBOL(input_mt_report_pointer_emulation);
+
+/**
+ * input_mt_sync_frame() - synchronize mt frame
+ * @dev: input device with allocated MT slots
+ *
+ * Close the frame and prepare the internal state for a new one.
+ * Depending on the flags, marks unused slots as inactive and performs
+ * pointer emulation.
+ */
+void input_mt_sync_frame(struct input_dev *dev)
+{
+	struct input_mt *mt = dev->mt;
+	struct input_mt_slot *s;
+
+	if (!mt)
+		return;
+
+	if (mt->flags & INPUT_MT_DROP_UNUSED) {
+		for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+			if (s->frame == mt->frame)
+				continue;
+			input_mt_slot(dev, s - mt->slots);
+			input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
+		}
+	}
+
+	input_mt_report_pointer_emulation(dev, (mt->flags & INPUT_MT_POINTER));
+
+	mt->frame++;
+}
+EXPORT_SYMBOL(input_mt_sync_frame);
+
+static int adjust_dual(int *begin, int step, int *end, int eq)
+{
+	int f, *p, s, c;
+
+	if (begin == end)
+		return 0;
+
+	f = *begin;
+	p = begin + step;
+	s = p == end ? f + 1 : *p;
+
+	for (; p != end; p += step)
+		if (*p < f)
+			s = f, f = *p;
+		else if (*p < s)
+			s = *p;
+
+	c = (f + s + 1) / 2;
+	if (c == 0 || (c > 0 && !eq))
+		return 0;
+	if (s < 0)
+		c *= 2;
+
+	for (p = begin; p != end; p += step)
+		*p -= c;
+
+	return (c < s && s <= 0) || (f >= 0 && f < c);
+}
+
+static void find_reduced_matrix(int *w, int nr, int nc, int nrc)
+{
+	int i, k, sum;
+
+	for (k = 0; k < nrc; k++) {
+		for (i = 0; i < nr; i++)
+			adjust_dual(w + i, nr, w + i + nrc, nr <= nc);
+		sum = 0;
+		for (i = 0; i < nrc; i += nr)
+			sum += adjust_dual(w + i, 1, w + i + nr, nc <= nr);
+		if (!sum)
+			break;
+	}
+}
+
+static int input_mt_set_matrix(struct input_mt *mt,
+			       const struct input_mt_pos *pos, int num_pos)
+{
+	const struct input_mt_pos *p;
+	struct input_mt_slot *s;
+	int *w = mt->red;
+	int x, y;
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+		if (!input_mt_is_active(s))
+			continue;
+		x = input_mt_get_value(s, ABS_MT_POSITION_X);
+		y = input_mt_get_value(s, ABS_MT_POSITION_Y);
+		for (p = pos; p != pos + num_pos; p++) {
+			int dx = x - p->x, dy = y - p->y;
+			*w++ = dx * dx + dy * dy;
+		}
+	}
+
+	return w - mt->red;
+}
+
+static void input_mt_set_slots(struct input_mt *mt,
+			       int *slots, int num_pos)
+{
+	struct input_mt_slot *s;
+	int *w = mt->red, *p;
+
+	for (p = slots; p != slots + num_pos; p++)
+		*p = -1;
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+		if (!input_mt_is_active(s))
+			continue;
+		for (p = slots; p != slots + num_pos; p++)
+			if (*w++ < 0)
+				*p = s - mt->slots;
+	}
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+		if (input_mt_is_active(s))
+			continue;
+		for (p = slots; p != slots + num_pos; p++)
+			if (*p < 0) {
+				*p = s - mt->slots;
+				break;
+			}
+	}
+}
+
+/**
+ * input_mt_assign_slots() - perform a best-match assignment
+ * @dev: input device with allocated MT slots
+ * @slots: the slot assignment to be filled
+ * @pos: the position array to match
+ * @num_pos: number of positions
+ *
+ * Performs a best match against the current contacts and returns
+ * the slot assignment list. New contacts are assigned to unused
+ * slots.
+ *
+ * Returns zero on success, or negative error in case of failure.
+ */
+int input_mt_assign_slots(struct input_dev *dev, int *slots,
+			  const struct input_mt_pos *pos, int num_pos)
+{
+	struct input_mt *mt = dev->mt;
+	int nrc;
+
+	if (!mt || !mt->red)
+		return -ENXIO;
+	if (num_pos > mt->num_slots)
+		return -EINVAL;
+	if (num_pos < 1)
+		return 0;
+
+	nrc = input_mt_set_matrix(mt, pos, num_pos);
+	find_reduced_matrix(mt->red, num_pos, nrc / num_pos, nrc);
+	input_mt_set_slots(mt, slots, num_pos);
+
+	return 0;
+}
+EXPORT_SYMBOL(input_mt_assign_slots);
+
+/**
+ * input_mt_get_slot_by_key() - return slot matching key
+ * @dev: input device with allocated MT slots
+ * @key: the key of the sought slot
+ *
+ * Returns the slot of the given key, if it exists, otherwise
+ * set the key on the first unused slot and return.
+ *
+ * If no available slot can be found, -1 is returned.
+ */
+int input_mt_get_slot_by_key(struct input_dev *dev, int key)
+{
+	struct input_mt *mt = dev->mt;
+	struct input_mt_slot *s;
+
+	if (!mt)
+		return -1;
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++)
+		if (input_mt_is_active(s) && s->key == key)
+			return s - mt->slots;
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++)
+		if (!input_mt_is_active(s)) {
+			s->key = key;
+			return s - mt->slots;
+		}
+
+	return -1;
+}
+EXPORT_SYMBOL(input_mt_get_slot_by_key);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 8921c6180c5..ace3f7c4226 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -47,6 +47,8 @@ static DEFINE_MUTEX(input_mutex);
 
 static struct input_handler *input_table[8];
 
+static const struct input_value input_value_sync = { EV_SYN, SYN_REPORT, 1 };
+
 static inline int is_event_supported(unsigned int code,
 				     unsigned long *bm, unsigned int max)
 {
@@ -69,42 +71,102 @@ static int input_defuzz_abs_event(int value, int old_val, int fuzz)
 	return value;
 }
 
+static void input_start_autorepeat(struct input_dev *dev, int code)
+{
+	if (test_bit(EV_REP, dev->evbit) &&
+	    dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] &&
+	    dev->timer.data) {
+		dev->repeat_key = code;
+		mod_timer(&dev->timer,
+			  jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]));
+	}
+}
+
+static void input_stop_autorepeat(struct input_dev *dev)
+{
+	del_timer(&dev->timer);
+}
+
 /*
  * Pass event first through all filters and then, if event has not been
  * filtered out, through all open handles. This function is called with
  * dev->event_lock held and interrupts disabled.
  */
-static void input_pass_event(struct input_dev *dev,
-			     unsigned int type, unsigned int code, int value)
+static unsigned int input_to_handler(struct input_handle *handle,
+			struct input_value *vals, unsigned int count)
+{
+	struct input_handler *handler = handle->handler;
+	struct input_value *end = vals;
+	struct input_value *v;
+
+	for (v = vals; v != vals + count; v++) {
+		if (handler->filter &&
+		    handler->filter(handle, v->type, v->code, v->value))
+			continue;
+		if (end != v)
+			*end = *v;
+		end++;
+	}
+
+	count = end - vals;
+	if (!count)
+		return 0;
+
+	if (handler->events)
+		handler->events(handle, vals, count);
+	else if (handler->event)
+		for (v = vals; v != end; v++)
+			handler->event(handle, v->type, v->code, v->value);
+
+	return count;
+}
+
+/*
+ * Pass values first through all filters and then, if event has not been
+ * filtered out, through all open handles. This function is called with
+ * dev->event_lock held and interrupts disabled.
+ */
+static void input_pass_values(struct input_dev *dev,
+			      struct input_value *vals, unsigned int count)
 {
-	struct input_handler *handler;
 	struct input_handle *handle;
+	struct input_value *v;
+
+	if (!count)
+		return;
 
 	rcu_read_lock();
 
 	handle = rcu_dereference(dev->grab);
-	if (handle)
-		handle->handler->event(handle, type, code, value);
-	else {
-		bool filtered = false;
-
-		list_for_each_entry_rcu(handle, &dev->h_list, d_node) {
-			if (!handle->open)
-				continue;
+	if (handle) {
+		count = input_to_handler(handle, vals, count);
+	} else {
+		list_for_each_entry_rcu(handle, &dev->h_list, d_node)
+			if (handle->open)
+				count = input_to_handler(handle, vals, count);
+	}
 
-			handler = handle->handler;
-			if (!handler->filter) {
-				if (filtered)
-					break;
+	rcu_read_unlock();
 
-				handler->event(handle, type, code, value);
+	add_input_randomness(vals->type, vals->code, vals->value);
 
-			} else if (handler->filter(handle, type, code, value))
-				filtered = true;
+	/* trigger auto repeat for key events */
+	for (v = vals; v != vals + count; v++) {
+		if (v->type == EV_KEY && v->value != 2) {
+			if (v->value)
+				input_start_autorepeat(dev, v->code);
+			else
+				input_stop_autorepeat(dev);
 		}
 	}
+}
 
-	rcu_read_unlock();
+static void input_pass_event(struct input_dev *dev,
+			     unsigned int type, unsigned int code, int value)
+{
+	struct input_value vals[] = { { type, code, value } };
+
+	input_pass_values(dev, vals, ARRAY_SIZE(vals));
 }
 
 /*
@@ -121,18 +183,12 @@ static void input_repeat_key(unsigned long data)
 
 	if (test_bit(dev->repeat_key, dev->key) &&
 	    is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) {
+		struct input_value vals[] =  {
+			{ EV_KEY, dev->repeat_key, 2 },
+			input_value_sync
+		};
 
-		input_pass_event(dev, EV_KEY, dev->repeat_key, 2);
-
-		if (dev->sync) {
-			/*
-			 * Only send SYN_REPORT if we are not in a middle
-			 * of driver parsing a new hardware packet.
-			 * Otherwise assume that the driver will send
-			 * SYN_REPORT once it's done.
-			 */
-			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
-		}
+		input_pass_values(dev, vals, ARRAY_SIZE(vals));
 
 		if (dev->rep[REP_PERIOD])
 			mod_timer(&dev->timer, jiffies +
@@ -142,30 +198,17 @@ static void input_repeat_key(unsigned long data)
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
 
-static void input_start_autorepeat(struct input_dev *dev, int code)
-{
-	if (test_bit(EV_REP, dev->evbit) &&
-	    dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] &&
-	    dev->timer.data) {
-		dev->repeat_key = code;
-		mod_timer(&dev->timer,
-			  jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]));
-	}
-}
-
-static void input_stop_autorepeat(struct input_dev *dev)
-{
-	del_timer(&dev->timer);
-}
-
 #define INPUT_IGNORE_EVENT	0
 #define INPUT_PASS_TO_HANDLERS	1
 #define INPUT_PASS_TO_DEVICE	2
+#define INPUT_SLOT		4
+#define INPUT_FLUSH		8
 #define INPUT_PASS_TO_ALL	(INPUT_PASS_TO_HANDLERS | INPUT_PASS_TO_DEVICE)
 
 static int input_handle_abs_event(struct input_dev *dev,
 				  unsigned int code, int *pval)
 {
+	struct input_mt *mt = dev->mt;
 	bool is_mt_event;
 	int *pold;
 
@@ -174,8 +217,8 @@ static int input_handle_abs_event(struct input_dev *dev,
 		 * "Stage" the event; we'll flush it later, when we
 		 * get actual touch data.
 		 */
-		if (*pval >= 0 && *pval < dev->mtsize)
-			dev->slot = *pval;
+		if (mt && *pval >= 0 && *pval < mt->num_slots)
+			mt->slot = *pval;
 
 		return INPUT_IGNORE_EVENT;
 	}
@@ -184,9 +227,8 @@ static int input_handle_abs_event(struct input_dev *dev,
 
 	if (!is_mt_event) {
 		pold = &dev->absinfo[code].value;
-	} else if (dev->mt) {
-		struct input_mt_slot *mtslot = &dev->mt[dev->slot];
-		pold = &mtslot->abs[code - ABS_MT_FIRST];
+	} else if (mt) {
+		pold = &mt->slots[mt->slot].abs[code - ABS_MT_FIRST];
 	} else {
 		/*
 		 * Bypass filtering for multi-touch events when
@@ -205,16 +247,16 @@ static int input_handle_abs_event(struct input_dev *dev,
 	}
 
 	/* Flush pending "slot" event */
-	if (is_mt_event && dev->slot != input_abs_get_val(dev, ABS_MT_SLOT)) {
-		input_abs_set_val(dev, ABS_MT_SLOT, dev->slot);
-		input_pass_event(dev, EV_ABS, ABS_MT_SLOT, dev->slot);
+	if (is_mt_event && mt && mt->slot != input_abs_get_val(dev, ABS_MT_SLOT)) {
+		input_abs_set_val(dev, ABS_MT_SLOT, mt->slot);
+		return INPUT_PASS_TO_HANDLERS | INPUT_SLOT;
 	}
 
 	return INPUT_PASS_TO_HANDLERS;
 }
 
-static void input_handle_event(struct input_dev *dev,
-			       unsigned int type, unsigned int code, int value)
+static int input_get_disposition(struct input_dev *dev,
+			  unsigned int type, unsigned int code, int value)
 {
 	int disposition = INPUT_IGNORE_EVENT;
 
@@ -227,37 +269,34 @@ static void input_handle_event(struct input_dev *dev,
 			break;
 
 		case SYN_REPORT:
-			if (!dev->sync) {
-				dev->sync = true;
-				disposition = INPUT_PASS_TO_HANDLERS;
-			}
+			disposition = INPUT_PASS_TO_HANDLERS | INPUT_FLUSH;
 			break;
 		case SYN_MT_REPORT:
-			dev->sync = false;
 			disposition = INPUT_PASS_TO_HANDLERS;
 			break;
 		}
 		break;
 
 	case EV_KEY:
-		if (is_event_supported(code, dev->keybit, KEY_MAX) &&
-		    !!test_bit(code, dev->key) != value) {
+		if (is_event_supported(code, dev->keybit, KEY_MAX)) {
 
-			if (value != 2) {
-				__change_bit(code, dev->key);
-				if (value)
-					input_start_autorepeat(dev, code);
-				else
-					input_stop_autorepeat(dev);
+			/* auto-repeat bypasses state updates */
+			if (value == 2) {
+				disposition = INPUT_PASS_TO_HANDLERS;
+				break;
 			}
 
-			disposition = INPUT_PASS_TO_HANDLERS;
+			if (!!test_bit(code, dev->key) != !!value) {
+
+				__change_bit(code, dev->key);
+				disposition = INPUT_PASS_TO_HANDLERS;
+			}
 		}
 		break;
 
 	case EV_SW:
 		if (is_event_supported(code, dev->swbit, SW_MAX) &&
-		    !!test_bit(code, dev->sw) != value) {
+		    !!test_bit(code, dev->sw) != !!value) {
 
 			__change_bit(code, dev->sw);
 			disposition = INPUT_PASS_TO_HANDLERS;
@@ -284,7 +323,7 @@ static void input_handle_event(struct input_dev *dev,
 
 	case EV_LED:
 		if (is_event_supported(code, dev->ledbit, LED_MAX) &&
-		    !!test_bit(code, dev->led) != value) {
+		    !!test_bit(code, dev->led) != !!value) {
 
 			__change_bit(code, dev->led);
 			disposition = INPUT_PASS_TO_ALL;
@@ -317,14 +356,48 @@ static void input_handle_event(struct input_dev *dev,
 		break;
 	}
 
-	if (disposition != INPUT_IGNORE_EVENT && type != EV_SYN)
-		dev->sync = false;
+	return disposition;
+}
+
+static void input_handle_event(struct input_dev *dev,
+			       unsigned int type, unsigned int code, int value)
+{
+	int disposition;
+
+	disposition = input_get_disposition(dev, type, code, value);
 
 	if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event)
 		dev->event(dev, type, code, value);
 
-	if (disposition & INPUT_PASS_TO_HANDLERS)
-		input_pass_event(dev, type, code, value);
+	if (!dev->vals)
+		return;
+
+	if (disposition & INPUT_PASS_TO_HANDLERS) {
+		struct input_value *v;
+
+		if (disposition & INPUT_SLOT) {
+			v = &dev->vals[dev->num_vals++];
+			v->type = EV_ABS;
+			v->code = ABS_MT_SLOT;
+			v->value = dev->mt->slot;
+		}
+
+		v = &dev->vals[dev->num_vals++];
+		v->type = type;
+		v->code = code;
+		v->value = value;
+	}
+
+	if (disposition & INPUT_FLUSH) {
+		if (dev->num_vals >= 2)
+			input_pass_values(dev, dev->vals, dev->num_vals);
+		dev->num_vals = 0;
+	} else if (dev->num_vals >= dev->max_vals - 2) {
+		dev->vals[dev->num_vals++] = input_value_sync;
+		input_pass_values(dev, dev->vals, dev->num_vals);
+		dev->num_vals = 0;
+	}
+
 }
 
 /**
@@ -352,7 +425,6 @@ void input_event(struct input_dev *dev,
 	if (is_event_supported(type, dev->evbit, EV_MAX)) {
 
 		spin_lock_irqsave(&dev->event_lock, flags);
-		add_input_randomness(type, code, value);
 		input_handle_event(dev, type, code, value);
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 	}
@@ -831,10 +903,12 @@ int input_set_keycode(struct input_dev *dev,
 	if (test_bit(EV_KEY, dev->evbit) &&
 	    !is_event_supported(old_keycode, dev->keybit, KEY_MAX) &&
 	    __test_and_clear_bit(old_keycode, dev->key)) {
+		struct input_value vals[] =  {
+			{ EV_KEY, old_keycode, 0 },
+			input_value_sync
+		};
 
-		input_pass_event(dev, EV_KEY, old_keycode, 0);
-		if (dev->sync)
-			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+		input_pass_values(dev, vals, ARRAY_SIZE(vals));
 	}
 
  out:
@@ -844,18 +918,10 @@ int input_set_keycode(struct input_dev *dev,
 }
 EXPORT_SYMBOL(input_set_keycode);
 
-#define MATCH_BIT(bit, max) \
-		for (i = 0; i < BITS_TO_LONGS(max); i++) \
-			if ((id->bit[i] & dev->bit[i]) != id->bit[i]) \
-				break; \
-		if (i != BITS_TO_LONGS(max)) \
-			continue;
-
 static const struct input_device_id *input_match_device(struct input_handler *handler,
 							struct input_dev *dev)
 {
 	const struct input_device_id *id;
-	int i;
 
 	for (id = handler->id_table; id->flags || id->driver_info; id++) {
 
@@ -875,15 +941,32 @@ static const struct input_device_id *input_match_device(struct input_handler *ha
 			if (id->version != dev->id.version)
 				continue;
 
-		MATCH_BIT(evbit,  EV_MAX);
-		MATCH_BIT(keybit, KEY_MAX);
-		MATCH_BIT(relbit, REL_MAX);
-		MATCH_BIT(absbit, ABS_MAX);
-		MATCH_BIT(mscbit, MSC_MAX);
-		MATCH_BIT(ledbit, LED_MAX);
-		MATCH_BIT(sndbit, SND_MAX);
-		MATCH_BIT(ffbit,  FF_MAX);
-		MATCH_BIT(swbit,  SW_MAX);
+		if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX))
+			continue;
+
+		if (!bitmap_subset(id->keybit, dev->keybit, KEY_MAX))
+			continue;
+
+		if (!bitmap_subset(id->relbit, dev->relbit, REL_MAX))
+			continue;
+
+		if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX))
+			continue;
+
+		if (!bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX))
+			continue;
+
+		if (!bitmap_subset(id->ledbit, dev->ledbit, LED_MAX))
+			continue;
+
+		if (!bitmap_subset(id->sndbit, dev->sndbit, SND_MAX))
+			continue;
+
+		if (!bitmap_subset(id->ffbit, dev->ffbit, FF_MAX))
+			continue;
+
+		if (!bitmap_subset(id->swbit, dev->swbit, SW_MAX))
+			continue;
 
 		if (!handler->match || handler->match(handler, dev))
 			return id;
@@ -1416,6 +1499,7 @@ static void input_dev_release(struct device *device)
 	input_ff_destroy(dev);
 	input_mt_destroy_slots(dev);
 	kfree(dev->absinfo);
+	kfree(dev->vals);
 	kfree(dev);
 
 	module_put(THIS_MODULE);
@@ -1751,8 +1835,8 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
 	int i;
 	unsigned int events;
 
-	if (dev->mtsize) {
-		mt_slots = dev->mtsize;
+	if (dev->mt) {
+		mt_slots = dev->mt->num_slots;
 	} else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) {
 		mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum -
 			   dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1,
@@ -1778,6 +1862,9 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
 		if (test_bit(i, dev->relbit))
 			events++;
 
+	/* Make room for KEY and MSC events */
+	events += 7;
+
 	return events;
 }
 
@@ -1816,6 +1903,7 @@ int input_register_device(struct input_dev *dev)
 {
 	static atomic_t input_no = ATOMIC_INIT(0);
 	struct input_handler *handler;
+	unsigned int packet_size;
 	const char *path;
 	int error;
 
@@ -1828,9 +1916,14 @@ int input_register_device(struct input_dev *dev)
 	/* Make sure that bitmasks not mentioned in dev->evbit are clean. */
 	input_cleanse_bitmasks(dev);
 
-	if (!dev->hint_events_per_packet)
-		dev->hint_events_per_packet =
-				input_estimate_events_per_packet(dev);
+	packet_size = input_estimate_events_per_packet(dev);
+	if (dev->hint_events_per_packet < packet_size)
+		dev->hint_events_per_packet = packet_size;
+
+	dev->max_vals = max(dev->hint_events_per_packet, packet_size) + 2;
+	dev->vals = kcalloc(dev->max_vals, sizeof(*dev->vals), GFP_KERNEL);
+	if (!dev->vals)
+		return -ENOMEM;
 
 	/*
 	 * If delay and period are pre-set by the driver, then autorepeating
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 26043cc6a01..78f323ea1e4 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -711,7 +711,7 @@ static long joydev_ioctl(struct file *file,
 
 	case JS_SET_ALL:
 		retval = copy_from_user(&joydev->glue, argp,
-					sizeof(joydev->glue)) ? -EFAULT: 0;
+					sizeof(joydev->glue)) ? -EFAULT : 0;
 		break;
 
 	case JS_GET_ALL:
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index c50fa75416f..b4b65af8612 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -533,7 +533,7 @@ config KEYBOARD_DAVINCI
 
 config KEYBOARD_OMAP
 	tristate "TI OMAP keypad support"
-	depends on (ARCH_OMAP1 || ARCH_OMAP2)
+	depends on ARCH_OMAP1
 	select INPUT_MATRIXKMAP
 	help
 	  Say Y here if you want to use the OMAP keypad.
diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
index 9d82b3aeff5..d5bacbb479b 100644
--- a/drivers/input/keyboard/davinci_keyscan.c
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -36,7 +36,7 @@
 
 #include <mach/hardware.h>
 #include <mach/irqs.h>
-#include <mach/keyscan.h>
+#include <linux/platform_data/keyscan-davinci.h>
 
 /* Key scan registers */
 #define DAVINCI_KEYSCAN_KEYCTRL		0x0000
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index c46fc818546..7363402de8d 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -29,7 +29,7 @@
 #include <linux/slab.h>
 
 #include <mach/hardware.h>
-#include <mach/ep93xx_keypad.h>
+#include <linux/platform_data/keypad-ep93xx.h>
 
 /*
  * Keypad Interface Register offsets
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index cbb1add43d5..6a68041c261 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -43,11 +43,9 @@ struct gpio_button_data {
 };
 
 struct gpio_keys_drvdata {
+	const struct gpio_keys_platform_data *pdata;
 	struct input_dev *input;
 	struct mutex disable_lock;
-	unsigned int n_buttons;
-	int (*enable)(struct device *dev);
-	void (*disable)(struct device *dev);
 	struct gpio_button_data data[0];
 };
 
@@ -171,7 +169,7 @@ static ssize_t gpio_keys_attr_show_helper(struct gpio_keys_drvdata *ddata,
 	if (!bits)
 		return -ENOMEM;
 
-	for (i = 0; i < ddata->n_buttons; i++) {
+	for (i = 0; i < ddata->pdata->nbuttons; i++) {
 		struct gpio_button_data *bdata = &ddata->data[i];
 
 		if (bdata->button->type != type)
@@ -219,7 +217,7 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
 		goto out;
 
 	/* First validate */
-	for (i = 0; i < ddata->n_buttons; i++) {
+	for (i = 0; i < ddata->pdata->nbuttons; i++) {
 		struct gpio_button_data *bdata = &ddata->data[i];
 
 		if (bdata->button->type != type)
@@ -234,7 +232,7 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
 
 	mutex_lock(&ddata->disable_lock);
 
-	for (i = 0; i < ddata->n_buttons; i++) {
+	for (i = 0; i < ddata->pdata->nbuttons; i++) {
 		struct gpio_button_data *bdata = &ddata->data[i];
 
 		if (bdata->button->type != type)
@@ -346,6 +344,9 @@ static void gpio_keys_gpio_work_func(struct work_struct *work)
 		container_of(work, struct gpio_button_data, work);
 
 	gpio_keys_gpio_report_event(bdata);
+
+	if (bdata->button->wakeup)
+		pm_relax(bdata->input->dev.parent);
 }
 
 static void gpio_keys_gpio_timer(unsigned long _data)
@@ -361,6 +362,8 @@ static irqreturn_t gpio_keys_gpio_isr(int irq, void *dev_id)
 
 	BUG_ON(irq != bdata->irq);
 
+	if (bdata->button->wakeup)
+		pm_stay_awake(bdata->input->dev.parent);
 	if (bdata->timer_debounce)
 		mod_timer(&bdata->timer,
 			jiffies + msecs_to_jiffies(bdata->timer_debounce));
@@ -397,6 +400,9 @@ static irqreturn_t gpio_keys_irq_isr(int irq, void *dev_id)
 	spin_lock_irqsave(&bdata->lock, flags);
 
 	if (!bdata->key_pressed) {
+		if (bdata->button->wakeup)
+			pm_wakeup_event(bdata->input->dev.parent, 0);
+
 		input_event(input, EV_KEY, button->code, 1);
 		input_sync(input);
 
@@ -523,56 +529,64 @@ fail:
 static int gpio_keys_open(struct input_dev *input)
 {
 	struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
+	const struct gpio_keys_platform_data *pdata = ddata->pdata;
 
-	return ddata->enable ? ddata->enable(input->dev.parent) : 0;
+	return pdata->enable ? pdata->enable(input->dev.parent) : 0;
 }
 
 static void gpio_keys_close(struct input_dev *input)
 {
 	struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
+	const struct gpio_keys_platform_data *pdata = ddata->pdata;
 
-	if (ddata->disable)
-		ddata->disable(input->dev.parent);
+	if (pdata->disable)
+		pdata->disable(input->dev.parent);
 }
 
 /*
  * Handlers for alternative sources of platform_data
  */
+
 #ifdef CONFIG_OF
 /*
  * Translate OpenFirmware node properties into platform_data
  */
-static int gpio_keys_get_devtree_pdata(struct device *dev,
-			    struct gpio_keys_platform_data *pdata)
+static struct gpio_keys_platform_data * __devinit
+gpio_keys_get_devtree_pdata(struct device *dev)
 {
 	struct device_node *node, *pp;
+	struct gpio_keys_platform_data *pdata;
+	struct gpio_keys_button *button;
+	int error;
+	int nbuttons;
 	int i;
-	struct gpio_keys_button *buttons;
-	u32 reg;
 
 	node = dev->of_node;
-	if (node == NULL)
-		return -ENODEV;
-
-	memset(pdata, 0, sizeof *pdata);
+	if (!node) {
+		error = -ENODEV;
+		goto err_out;
+	}
 
-	pdata->rep = !!of_get_property(node, "autorepeat", NULL);
+	nbuttons = of_get_child_count(node);
+	if (nbuttons == 0) {
+		error = -ENODEV;
+		goto err_out;
+	}
 
-	/* First count the subnodes */
-	pp = NULL;
-	while ((pp = of_get_next_child(node, pp)))
-		pdata->nbuttons++;
+	pdata = kzalloc(sizeof(*pdata) + nbuttons * (sizeof *button),
+			GFP_KERNEL);
+	if (!pdata) {
+		error = -ENOMEM;
+		goto err_out;
+	}
 
-	if (pdata->nbuttons == 0)
-		return -ENODEV;
+	pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
+	pdata->nbuttons = nbuttons;
 
-	buttons = kzalloc(pdata->nbuttons * (sizeof *buttons), GFP_KERNEL);
-	if (!buttons)
-		return -ENOMEM;
+	pdata->rep = !!of_get_property(node, "autorepeat", NULL);
 
-	pp = NULL;
 	i = 0;
-	while ((pp = of_get_next_child(node, pp))) {
+	for_each_child_of_node(node, pp) {
 		enum of_gpio_flags flags;
 
 		if (!of_find_property(pp, "gpios", NULL)) {
@@ -580,39 +594,42 @@ static int gpio_keys_get_devtree_pdata(struct device *dev,
 			dev_warn(dev, "Found button without gpios\n");
 			continue;
 		}
-		buttons[i].gpio = of_get_gpio_flags(pp, 0, &flags);
-		buttons[i].active_low = flags & OF_GPIO_ACTIVE_LOW;
 
-		if (of_property_read_u32(pp, "linux,code", &reg)) {
-			dev_err(dev, "Button without keycode: 0x%x\n", buttons[i].gpio);
-			goto out_fail;
-		}
-		buttons[i].code = reg;
+		button = &pdata->buttons[i++];
 
-		buttons[i].desc = of_get_property(pp, "label", NULL);
+		button->gpio = of_get_gpio_flags(pp, 0, &flags);
+		button->active_low = flags & OF_GPIO_ACTIVE_LOW;
 
-		if (of_property_read_u32(pp, "linux,input-type", &reg) == 0)
-			buttons[i].type = reg;
-		else
-			buttons[i].type = EV_KEY;
+		if (of_property_read_u32(pp, "linux,code", &button->code)) {
+			dev_err(dev, "Button without keycode: 0x%x\n",
+				button->gpio);
+			error = -EINVAL;
+			goto err_free_pdata;
+		}
 
-		buttons[i].wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
+		button->desc = of_get_property(pp, "label", NULL);
 
-		if (of_property_read_u32(pp, "debounce-interval", &reg) == 0)
-			buttons[i].debounce_interval = reg;
-		else
-			buttons[i].debounce_interval = 5;
+		if (of_property_read_u32(pp, "linux,input-type", &button->type))
+			button->type = EV_KEY;
 
-		i++;
+		button->wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
+
+		if (of_property_read_u32(pp, "debounce-interval",
+					 &button->debounce_interval))
+			button->debounce_interval = 5;
 	}
 
-	pdata->buttons = buttons;
+	if (pdata->nbuttons == 0) {
+		error = -EINVAL;
+		goto err_free_pdata;
+	}
 
-	return 0;
+	return pdata;
 
-out_fail:
-	kfree(buttons);
-	return -ENODEV;
+err_free_pdata:
+	kfree(pdata);
+err_out:
+	return ERR_PTR(error);
 }
 
 static struct of_device_id gpio_keys_of_match[] = {
@@ -623,14 +640,12 @@ MODULE_DEVICE_TABLE(of, gpio_keys_of_match);
 
 #else
 
-static int gpio_keys_get_devtree_pdata(struct device *dev,
-			    struct gpio_keys_platform_data *altp)
+static inline struct gpio_keys_platform_data *
+gpio_keys_get_devtree_pdata(struct device *dev)
 {
-	return -ENODEV;
+	return ERR_PTR(-ENODEV);
 }
 
-#define gpio_keys_of_match NULL
-
 #endif
 
 static void gpio_remove_key(struct gpio_button_data *bdata)
@@ -645,19 +660,17 @@ static void gpio_remove_key(struct gpio_button_data *bdata)
 
 static int __devinit gpio_keys_probe(struct platform_device *pdev)
 {
-	const struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
-	struct gpio_keys_drvdata *ddata;
 	struct device *dev = &pdev->dev;
-	struct gpio_keys_platform_data alt_pdata;
+	const struct gpio_keys_platform_data *pdata = dev_get_platdata(dev);
+	struct gpio_keys_drvdata *ddata;
 	struct input_dev *input;
 	int i, error;
 	int wakeup = 0;
 
 	if (!pdata) {
-		error = gpio_keys_get_devtree_pdata(dev, &alt_pdata);
-		if (error)
-			return error;
-		pdata = &alt_pdata;
+		pdata = gpio_keys_get_devtree_pdata(dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
 	}
 
 	ddata = kzalloc(sizeof(struct gpio_keys_drvdata) +
@@ -670,10 +683,8 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 		goto fail1;
 	}
 
+	ddata->pdata = pdata;
 	ddata->input = input;
-	ddata->n_buttons = pdata->nbuttons;
-	ddata->enable = pdata->enable;
-	ddata->disable = pdata->disable;
 	mutex_init(&ddata->disable_lock);
 
 	platform_set_drvdata(pdev, ddata);
@@ -742,9 +753,9 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
  fail1:
 	input_free_device(input);
 	kfree(ddata);
-	/* If we have no platform_data, we allocated buttons dynamically. */
-	if (!pdev->dev.platform_data)
-		kfree(pdata->buttons);
+	/* If we have no platform data, we allocated pdata dynamically. */
+	if (!dev_get_platdata(&pdev->dev))
+		kfree(pdata);
 
 	return error;
 }
@@ -759,18 +770,14 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, 0);
 
-	for (i = 0; i < ddata->n_buttons; i++)
+	for (i = 0; i < ddata->pdata->nbuttons; i++)
 		gpio_remove_key(&ddata->data[i]);
 
 	input_unregister_device(input);
 
-	/*
-	 * If we had no platform_data, we allocated buttons dynamically, and
-	 * must free them here. ddata->data[0].button is the pointer to the
-	 * beginning of the allocated array.
-	 */
-	if (!pdev->dev.platform_data)
-		kfree(ddata->data[0].button);
+	/* If we have no platform data, we allocated pdata dynamically. */
+	if (!dev_get_platdata(&pdev->dev))
+		kfree(ddata->pdata);
 
 	kfree(ddata);
 
@@ -784,7 +791,7 @@ static int gpio_keys_suspend(struct device *dev)
 	int i;
 
 	if (device_may_wakeup(dev)) {
-		for (i = 0; i < ddata->n_buttons; i++) {
+		for (i = 0; i < ddata->pdata->nbuttons; i++) {
 			struct gpio_button_data *bdata = &ddata->data[i];
 			if (bdata->button->wakeup)
 				enable_irq_wake(bdata->irq);
@@ -799,7 +806,7 @@ static int gpio_keys_resume(struct device *dev)
 	struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev);
 	int i;
 
-	for (i = 0; i < ddata->n_buttons; i++) {
+	for (i = 0; i < ddata->pdata->nbuttons; i++) {
 		struct gpio_button_data *bdata = &ddata->data[i];
 		if (bdata->button->wakeup && device_may_wakeup(dev))
 			disable_irq_wake(bdata->irq);
@@ -822,7 +829,7 @@ static struct platform_driver gpio_keys_device_driver = {
 		.name	= "gpio-keys",
 		.owner	= THIS_MODULE,
 		.pm	= &gpio_keys_pm_ops,
-		.of_match_table = gpio_keys_of_match,
+		.of_match_table = of_match_ptr(gpio_keys_of_match),
 	}
 };
 
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 20c8ab17221..f2142de789e 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -25,6 +25,8 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 
 #define DRV_NAME	"gpio-keys-polled"
 
@@ -38,7 +40,7 @@ struct gpio_keys_button_data {
 struct gpio_keys_polled_dev {
 	struct input_polled_dev *poll_dev;
 	struct device *dev;
-	struct gpio_keys_platform_data *pdata;
+	const struct gpio_keys_platform_data *pdata;
 	struct gpio_keys_button_data data[0];
 };
 
@@ -67,11 +69,11 @@ static void gpio_keys_polled_check_state(struct input_dev *input,
 static void gpio_keys_polled_poll(struct input_polled_dev *dev)
 {
 	struct gpio_keys_polled_dev *bdev = dev->private;
-	struct gpio_keys_platform_data *pdata = bdev->pdata;
+	const struct gpio_keys_platform_data *pdata = bdev->pdata;
 	struct input_dev *input = dev->input;
 	int i;
 
-	for (i = 0; i < bdev->pdata->nbuttons; i++) {
+	for (i = 0; i < pdata->nbuttons; i++) {
 		struct gpio_keys_button_data *bdata = &bdev->data[i];
 
 		if (bdata->count < bdata->threshold)
@@ -85,7 +87,7 @@ static void gpio_keys_polled_poll(struct input_polled_dev *dev)
 static void gpio_keys_polled_open(struct input_polled_dev *dev)
 {
 	struct gpio_keys_polled_dev *bdev = dev->private;
-	struct gpio_keys_platform_data *pdata = bdev->pdata;
+	const struct gpio_keys_platform_data *pdata = bdev->pdata;
 
 	if (pdata->enable)
 		pdata->enable(bdev->dev);
@@ -94,31 +96,139 @@ static void gpio_keys_polled_open(struct input_polled_dev *dev)
 static void gpio_keys_polled_close(struct input_polled_dev *dev)
 {
 	struct gpio_keys_polled_dev *bdev = dev->private;
-	struct gpio_keys_platform_data *pdata = bdev->pdata;
+	const struct gpio_keys_platform_data *pdata = bdev->pdata;
 
 	if (pdata->disable)
 		pdata->disable(bdev->dev);
 }
 
+#ifdef CONFIG_OF
+static struct gpio_keys_platform_data * __devinit
+gpio_keys_polled_get_devtree_pdata(struct device *dev)
+{
+	struct device_node *node, *pp;
+	struct gpio_keys_platform_data *pdata;
+	struct gpio_keys_button *button;
+	int error;
+	int nbuttons;
+	int i;
+
+	node = dev->of_node;
+	if (!node)
+		return NULL;
+
+	nbuttons = of_get_child_count(node);
+	if (nbuttons == 0)
+		return NULL;
+
+	pdata = kzalloc(sizeof(*pdata) + nbuttons * (sizeof *button),
+			GFP_KERNEL);
+	if (!pdata) {
+		error = -ENOMEM;
+		goto err_out;
+	}
+
+	pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
+	pdata->nbuttons = nbuttons;
+
+	pdata->rep = !!of_get_property(node, "autorepeat", NULL);
+	of_property_read_u32(node, "poll-interval", &pdata->poll_interval);
+
+	i = 0;
+	for_each_child_of_node(node, pp) {
+		enum of_gpio_flags flags;
+
+		if (!of_find_property(pp, "gpios", NULL)) {
+			pdata->nbuttons--;
+			dev_warn(dev, "Found button without gpios\n");
+			continue;
+		}
+
+		button = &pdata->buttons[i++];
+
+		button->gpio = of_get_gpio_flags(pp, 0, &flags);
+		button->active_low = flags & OF_GPIO_ACTIVE_LOW;
+
+		if (of_property_read_u32(pp, "linux,code", &button->code)) {
+			dev_err(dev, "Button without keycode: 0x%x\n",
+				button->gpio);
+			error = -EINVAL;
+			goto err_free_pdata;
+		}
+
+		button->desc = of_get_property(pp, "label", NULL);
+
+		if (of_property_read_u32(pp, "linux,input-type", &button->type))
+			button->type = EV_KEY;
+
+		button->wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
+
+		if (of_property_read_u32(pp, "debounce-interval",
+					 &button->debounce_interval))
+			button->debounce_interval = 5;
+	}
+
+	if (pdata->nbuttons == 0) {
+		error = -EINVAL;
+		goto err_free_pdata;
+	}
+
+	return pdata;
+
+err_free_pdata:
+	kfree(pdata);
+err_out:
+	return ERR_PTR(error);
+}
+
+static struct of_device_id gpio_keys_polled_of_match[] = {
+	{ .compatible = "gpio-keys-polled", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, gpio_keys_polled_of_match);
+
+#else
+
+static inline struct gpio_keys_platform_data *
+gpio_keys_polled_get_devtree_pdata(struct device *dev)
+{
+	return NULL;
+}
+#endif
+
 static int __devinit gpio_keys_polled_probe(struct platform_device *pdev)
 {
-	struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
 	struct device *dev = &pdev->dev;
+	const struct gpio_keys_platform_data *pdata = dev_get_platdata(dev);
 	struct gpio_keys_polled_dev *bdev;
 	struct input_polled_dev *poll_dev;
 	struct input_dev *input;
 	int error;
 	int i;
 
-	if (!pdata || !pdata->poll_interval)
-		return -EINVAL;
+	if (!pdata) {
+		pdata = gpio_keys_polled_get_devtree_pdata(dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+		if (!pdata) {
+			dev_err(dev, "missing platform data\n");
+			return -EINVAL;
+		}
+	}
+
+	if (!pdata->poll_interval) {
+		dev_err(dev, "missing poll_interval value\n");
+		error = -EINVAL;
+		goto err_free_pdata;
+	}
 
 	bdev = kzalloc(sizeof(struct gpio_keys_polled_dev) +
 		       pdata->nbuttons * sizeof(struct gpio_keys_button_data),
 		       GFP_KERNEL);
 	if (!bdev) {
 		dev_err(dev, "no memory for private data\n");
-		return -ENOMEM;
+		error = -ENOMEM;
+		goto err_free_pdata;
 	}
 
 	poll_dev = input_allocate_polled_device();
@@ -197,7 +307,7 @@ static int __devinit gpio_keys_polled_probe(struct platform_device *pdev)
 	/* report initial state of the buttons */
 	for (i = 0; i < pdata->nbuttons; i++)
 		gpio_keys_polled_check_state(input, &pdata->buttons[i],
-					 &bdev->data[i]);
+					     &bdev->data[i]);
 
 	return 0;
 
@@ -209,15 +319,20 @@ err_free_gpio:
 
 err_free_bdev:
 	kfree(bdev);
-
 	platform_set_drvdata(pdev, NULL);
+
+err_free_pdata:
+	/* If we have no platform_data, we allocated pdata dynamically.  */
+	if (!dev_get_platdata(&pdev->dev))
+		kfree(pdata);
+
 	return error;
 }
 
 static int __devexit gpio_keys_polled_remove(struct platform_device *pdev)
 {
 	struct gpio_keys_polled_dev *bdev = platform_get_drvdata(pdev);
-	struct gpio_keys_platform_data *pdata = bdev->pdata;
+	const struct gpio_keys_platform_data *pdata = bdev->pdata;
 	int i;
 
 	input_unregister_polled_device(bdev->poll_dev);
@@ -227,6 +342,13 @@ static int __devexit gpio_keys_polled_remove(struct platform_device *pdev)
 
 	input_free_polled_device(bdev->poll_dev);
 
+	/*
+	 * If we had no platform_data, we allocated pdata dynamically and
+	 * must free it here.
+	 */
+	if (!dev_get_platdata(&pdev->dev))
+		kfree(pdata);
+
 	kfree(bdev);
 	platform_set_drvdata(pdev, NULL);
 
@@ -239,6 +361,7 @@ static struct platform_driver gpio_keys_polled_driver = {
 	.driver	= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(gpio_keys_polled_of_match),
 	},
 };
 module_platform_driver(gpio_keys_polled_driver);
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index ff4c0a87a25..cdc252612c0 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -358,6 +358,7 @@ static void imx_keypad_inhibit(struct imx_keypad *keypad)
 	/* Inhibit KDI and KRI interrupts. */
 	reg_val = readw(keypad->mmio_base + KPSR);
 	reg_val &= ~(KBD_STAT_KRIE | KBD_STAT_KDIE);
+	reg_val |= KBD_STAT_KPKR | KBD_STAT_KPKD;
 	writew(reg_val, keypad->mmio_base + KPSR);
 
 	/* Colums as open drain and disable all rows */
@@ -515,7 +516,9 @@ static int __devinit imx_keypad_probe(struct platform_device *pdev)
 	input_set_drvdata(input_dev, keypad);
 
 	/* Ensure that the keypad will stay dormant until opened */
+	clk_prepare_enable(keypad->clk);
 	imx_keypad_inhibit(keypad);
+	clk_disable_unprepare(keypad->clk);
 
 	error = request_irq(irq, imx_keypad_irq_handler, 0,
 			    pdev->name, keypad);
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
index a880e741420..49f5fa64e0b 100644
--- a/drivers/input/keyboard/nomadik-ske-keypad.c
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -20,7 +20,7 @@
 #include <linux/clk.h>
 #include <linux/module.h>
 
-#include <plat/ske.h>
+#include <linux/platform_data/keypad-nomadik-ske.h>
 
 /* SKE_CR bits */
 #define SKE_KPMLT	(0x1 << 6)
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index a0222db4dc8..4a5fcc8026f 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -35,13 +35,9 @@
 #include <linux/mutex.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-#include <asm/gpio.h>
-#include <plat/keypad.h>
-#include <plat/menelaus.h>
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <asm/io.h>
-#include <plat/mux.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/platform_data/keypad-omap.h>
 
 #undef NEW_BOARD_LEARNING_MODE
 
@@ -96,28 +92,8 @@ static u8 get_row_gpio_val(struct omap_kp *omap_kp)
 
 static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
 {
-	struct omap_kp *omap_kp = dev_id;
-
 	/* disable keyboard interrupt and schedule for handling */
-	if (cpu_is_omap24xx()) {
-		int i;
-
-		for (i = 0; i < omap_kp->rows; i++) {
-			int gpio_irq = gpio_to_irq(row_gpios[i]);
-			/*
-			 * The interrupt which we're currently handling should
-			 * be disabled _nosync() to avoid deadlocks waiting
-			 * for this handler to complete.  All others should
-			 * be disabled the regular way for SMP safety.
-			 */
-			if (gpio_irq == irq)
-				disable_irq_nosync(gpio_irq);
-			else
-				disable_irq(gpio_irq);
-		}
-	} else
-		/* disable keyboard interrupt and schedule for handling */
-		omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 
 	tasklet_schedule(&kp_tasklet);
 
@@ -133,33 +109,22 @@ static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
 {
 	int col = 0;
 
-	/* read the keypad status */
-	if (cpu_is_omap24xx()) {
-		/* read the keypad status */
-		for (col = 0; col < omap_kp->cols; col++) {
-			set_col_gpio_val(omap_kp, ~(1 << col));
-			state[col] = ~(get_row_gpio_val(omap_kp)) & 0xff;
-		}
-		set_col_gpio_val(omap_kp, 0);
-
-	} else {
-		/* disable keyboard interrupt and schedule for handling */
-		omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+	/* disable keyboard interrupt and schedule for handling */
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 
-		/* read the keypad status */
-		omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
-		for (col = 0; col < omap_kp->cols; col++) {
-			omap_writew(~(1 << col) & 0xff,
-				    OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+	/* read the keypad status */
+	omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+	for (col = 0; col < omap_kp->cols; col++) {
+		omap_writew(~(1 << col) & 0xff,
+			    OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
 
-			udelay(omap_kp->delay);
+		udelay(omap_kp->delay);
 
-			state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
-						 OMAP_MPUIO_KBR_LATCH) & 0xff;
-		}
-		omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
-		udelay(2);
+		state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
+					 OMAP_MPUIO_KBR_LATCH) & 0xff;
 	}
+	omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+	udelay(2);
 }
 
 static void omap_kp_tasklet(unsigned long data)
@@ -214,7 +179,7 @@ static void omap_kp_tasklet(unsigned long data)
 	memcpy(keypad_state, new_state, sizeof(keypad_state));
 
 	if (key_down) {
-                int delay = HZ / 20;
+		int delay = HZ / 20;
 		/* some key is pressed - keep irq disabled and use timer
 		 * to poll the keypad */
 		if (spurious)
@@ -222,14 +187,8 @@ static void omap_kp_tasklet(unsigned long data)
 		mod_timer(&omap_kp_data->timer, jiffies + delay);
 	} else {
 		/* enable interrupts */
-		if (cpu_is_omap24xx()) {
-			int i;
-			for (i = 0; i < omap_kp_data->rows; i++)
-				enable_irq(gpio_to_irq(row_gpios[i]));
-		} else {
-			omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-			kp_cur_group = -1;
-		}
+		omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+		kp_cur_group = -1;
 	}
 }
 
@@ -242,6 +201,7 @@ static ssize_t omap_kp_enable_show(struct device *dev,
 static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct omap_kp *omap_kp = dev_get_drvdata(dev);
 	int state;
 
 	if (sscanf(buf, "%u", &state) != 1)
@@ -253,9 +213,9 @@ static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute
 	mutex_lock(&kp_enable_mutex);
 	if (state != kp_enable) {
 		if (state)
-			enable_irq(INT_KEYBOARD);
+			enable_irq(omap_kp->irq);
 		else
-			disable_irq(INT_KEYBOARD);
+			disable_irq(omap_kp->irq);
 		kp_enable = state;
 	}
 	mutex_unlock(&kp_enable_mutex);
@@ -289,7 +249,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
 	struct omap_kp *omap_kp;
 	struct input_dev *input_dev;
 	struct omap_kp_platform_data *pdata =  pdev->dev.platform_data;
-	int i, col_idx, row_idx, irq_idx, ret;
+	int i, col_idx, row_idx, ret;
 	unsigned int row_shift, keycodemax;
 
 	if (!pdata->rows || !pdata->cols || !pdata->keymap_data) {
@@ -314,8 +274,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
 	omap_kp->input = input_dev;
 
 	/* Disable the interrupt for the MPUIO keyboard */
-	if (!cpu_is_omap24xx())
-		omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 
 	if (pdata->delay)
 		omap_kp->delay = pdata->delay;
@@ -328,31 +287,8 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
 	omap_kp->rows = pdata->rows;
 	omap_kp->cols = pdata->cols;
 
-	if (cpu_is_omap24xx()) {
-		/* Cols: outputs */
-		for (col_idx = 0; col_idx < omap_kp->cols; col_idx++) {
-			if (gpio_request(col_gpios[col_idx], "omap_kp_col") < 0) {
-				printk(KERN_ERR "Failed to request"
-				       "GPIO%d for keypad\n",
-				       col_gpios[col_idx]);
-				goto err1;
-			}
-			gpio_direction_output(col_gpios[col_idx], 0);
-		}
-		/* Rows: inputs */
-		for (row_idx = 0; row_idx < omap_kp->rows; row_idx++) {
-			if (gpio_request(row_gpios[row_idx], "omap_kp_row") < 0) {
-				printk(KERN_ERR "Failed to request"
-				       "GPIO%d for keypad\n",
-				       row_gpios[row_idx]);
-				goto err2;
-			}
-			gpio_direction_input(row_gpios[row_idx]);
-		}
-	} else {
-		col_idx = 0;
-		row_idx = 0;
-	}
+	col_idx = 0;
+	row_idx = 0;
 
 	setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
 
@@ -394,37 +330,25 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
 
 	/* scan current status and enable interrupt */
 	omap_kp_scan_keypad(omap_kp, keypad_state);
-	if (!cpu_is_omap24xx()) {
-		omap_kp->irq = platform_get_irq(pdev, 0);
-		if (omap_kp->irq >= 0) {
-			if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
-					"omap-keypad", omap_kp) < 0)
-				goto err4;
-		}
-		omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-	} else {
-		for (irq_idx = 0; irq_idx < omap_kp->rows; irq_idx++) {
-			if (request_irq(gpio_to_irq(row_gpios[irq_idx]),
-					omap_kp_interrupt,
-					IRQF_TRIGGER_FALLING,
-					"omap-keypad", omap_kp) < 0)
-				goto err5;
-		}
+	omap_kp->irq = platform_get_irq(pdev, 0);
+	if (omap_kp->irq >= 0) {
+		if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
+				"omap-keypad", omap_kp) < 0)
+			goto err4;
 	}
+	omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
 	return 0;
-err5:
-	for (i = irq_idx - 1; i >=0; i--)
-		free_irq(row_gpios[i], omap_kp);
+
 err4:
 	input_unregister_device(omap_kp->input);
 	input_dev = NULL;
 err3:
 	device_remove_file(&pdev->dev, &dev_attr_enable);
 err2:
-	for (i = row_idx - 1; i >=0; i--)
+	for (i = row_idx - 1; i >= 0; i--)
 		gpio_free(row_gpios[i]);
-err1:
-	for (i = col_idx - 1; i >=0; i--)
+	for (i = col_idx - 1; i >= 0; i--)
 		gpio_free(col_gpios[i]);
 
 	kfree(omap_kp);
@@ -439,18 +363,8 @@ static int __devexit omap_kp_remove(struct platform_device *pdev)
 
 	/* disable keypad interrupt handling */
 	tasklet_disable(&kp_tasklet);
-	if (cpu_is_omap24xx()) {
-		int i;
-		for (i = 0; i < omap_kp->cols; i++)
-			gpio_free(col_gpios[i]);
-		for (i = 0; i < omap_kp->rows; i++) {
-			gpio_free(row_gpios[i]);
-			free_irq(gpio_to_irq(row_gpios[i]), omap_kp);
-		}
-	} else {
-		omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-		free_irq(omap_kp->irq, omap_kp);
-	}
+	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+	free_irq(omap_kp->irq, omap_kp);
 
 	del_timer_sync(&omap_kp->timer);
 	tasklet_kill(&kp_tasklet);
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index 7f7b72464a3..803ff6fe021 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -32,7 +32,7 @@
 #include <asm/mach/map.h>
 
 #include <mach/hardware.h>
-#include <plat/pxa27x_keypad.h>
+#include <linux/platform_data/keypad-pxa27x.h>
 /*
  * Keypad Controller registers
  */
diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c
index d7f1134b789..41488f9add2 100644
--- a/drivers/input/keyboard/pxa930_rotary.c
+++ b/drivers/input/keyboard/pxa930_rotary.c
@@ -15,7 +15,7 @@
 #include <linux/io.h>
 #include <linux/slab.h>
 
-#include <mach/pxa930_rotary.h>
+#include <linux/platform_data/keyboard-pxa930_rotary.h>
 
 #define SBCR	(0x04)
 #define ERCR	(0x0c)
diff --git a/drivers/input/keyboard/qt2160.c b/drivers/input/keyboard/qt2160.c
index e7a5e36e120..76b7d430d03 100644
--- a/drivers/input/keyboard/qt2160.c
+++ b/drivers/input/keyboard/qt2160.c
@@ -156,8 +156,7 @@ static irqreturn_t qt2160_irq(int irq, void *_qt2160)
 
 	spin_lock_irqsave(&qt2160->lock, flags);
 
-	__cancel_delayed_work(&qt2160->dwork);
-	schedule_delayed_work(&qt2160->dwork, 0);
+	mod_delayed_work(system_wq, &qt2160->dwork, 0);
 
 	spin_unlock_irqrestore(&qt2160->lock, flags);
 
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index a061ba603a2..277e26dc910 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -256,7 +256,7 @@ static struct samsung_keypad_platdata *samsung_keypad_parse_dt(
 	struct matrix_keymap_data *keymap_data;
 	uint32_t *keymap, num_rows = 0, num_cols = 0;
 	struct device_node *np = dev->of_node, *key_np;
-	unsigned int key_count = 0;
+	unsigned int key_count;
 
 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata) {
@@ -280,9 +280,7 @@ static struct samsung_keypad_platdata *samsung_keypad_parse_dt(
 	}
 	pdata->keymap_data = keymap_data;
 
-	for_each_child_of_node(np, key_np)
-		key_count++;
-
+	key_count = of_get_child_count(np);
 	keymap_data->keymap_size = key_count;
 	keymap = devm_kzalloc(dev, sizeof(uint32_t) * key_count, GFP_KERNEL);
 	if (!keymap) {
@@ -662,8 +660,6 @@ static const struct of_device_id samsung_keypad_dt_match[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, samsung_keypad_dt_match);
-#else
-#define samsung_keypad_dt_match NULL
 #endif
 
 static struct platform_device_id samsung_keypad_driver_ids[] = {
@@ -684,7 +680,7 @@ static struct platform_driver samsung_keypad_driver = {
 	.driver		= {
 		.name	= "samsung-keypad",
 		.owner	= THIS_MODULE,
-		.of_match_table = samsung_keypad_dt_match,
+		.of_match_table = of_match_ptr(samsung_keypad_dt_match),
 		.pm	= &samsung_keypad_pm_ops,
 	},
 	.id_table	= samsung_keypad_driver_ids,
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index 72ef01be336..c7ca97f44bf 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -24,7 +24,7 @@
 #include <linux/pm_wakeup.h>
 #include <linux/slab.h>
 #include <linux/types.h>
-#include <plat/keyboard.h>
+#include <linux/platform_data/keyboard-spear.h>
 
 /* Keyboard Registers */
 #define MODE_CTL_REG	0x00
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 2c1c9ed1bd9..5faaf2553e3 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -29,8 +29,8 @@
 #include <linux/of.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
+#include <linux/input/tegra_kbc.h>
 #include <mach/clk.h>
-#include <mach/kbc.h>
 
 #define KBC_MAX_DEBOUNCE_CNT	0x3ffu
 
diff --git a/drivers/input/keyboard/w90p910_keypad.c b/drivers/input/keyboard/w90p910_keypad.c
index 085ede4d972..e0f6cd1ad0f 100644
--- a/drivers/input/keyboard/w90p910_keypad.c
+++ b/drivers/input/keyboard/w90p910_keypad.c
@@ -21,7 +21,7 @@
 #include <linux/io.h>
 #include <linux/slab.h>
 
-#include <mach/w90p910_keypad.h>
+#include <linux/platform_data/keypad-w90p910.h>
 
 /* Keypad Interface Control Registers */
 #define KPI_CONF		0x00
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c
index f06231b7cab..84ec691c05a 100644
--- a/drivers/input/misc/ab8500-ponkey.c
+++ b/drivers/input/misc/ab8500-ponkey.c
@@ -74,8 +74,8 @@ static int __devinit ab8500_ponkey_probe(struct platform_device *pdev)
 
 	ponkey->idev = input;
 	ponkey->ab8500 = ab8500;
-	ponkey->irq_dbf = ab8500_irq_get_virq(ab8500, irq_dbf);
-	ponkey->irq_dbr = ab8500_irq_get_virq(ab8500, irq_dbr);
+	ponkey->irq_dbf = irq_dbf;
+	ponkey->irq_dbr = irq_dbr;
 
 	input->name = "AB8500 POn(PowerOn) Key";
 	input->dev.parent = &pdev->dev;
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index f07f784198b..99a49e4968d 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -24,12 +24,14 @@
 #include <linux/gpio.h>
 #include <linux/rotary_encoder.h>
 #include <linux/slab.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 
 #define DRV_NAME "rotary-encoder"
 
 struct rotary_encoder {
 	struct input_dev *input;
-	struct rotary_encoder_platform_data *pdata;
+	const struct rotary_encoder_platform_data *pdata;
 
 	unsigned int axis;
 	unsigned int pos;
@@ -43,7 +45,7 @@ struct rotary_encoder {
 	char last_stable;
 };
 
-static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
+static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)
 {
 	int a = !!gpio_get_value(pdata->gpio_a);
 	int b = !!gpio_get_value(pdata->gpio_b);
@@ -56,7 +58,7 @@ static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
 
 static void rotary_encoder_report_event(struct rotary_encoder *encoder)
 {
-	struct rotary_encoder_platform_data *pdata = encoder->pdata;
+	const struct rotary_encoder_platform_data *pdata = encoder->pdata;
 
 	if (pdata->relative_axis) {
 		input_report_rel(encoder->input,
@@ -140,36 +142,89 @@ static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id rotary_encoder_of_match[] = {
+	{ .compatible = "rotary-encoder", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rotary_encoder_of_match);
+
+static struct rotary_encoder_platform_data * __devinit
+rotary_encoder_parse_dt(struct device *dev)
+{
+	const struct of_device_id *of_id =
+				of_match_device(rotary_encoder_of_match, dev);
+	struct device_node *np = dev->of_node;
+	struct rotary_encoder_platform_data *pdata;
+	enum of_gpio_flags flags;
+
+	if (!of_id || !np)
+		return NULL;
+
+	pdata = kzalloc(sizeof(struct rotary_encoder_platform_data),
+			GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	of_property_read_u32(np, "rotary-encoder,steps", &pdata->steps);
+	of_property_read_u32(np, "linux,axis", &pdata->axis);
+
+	pdata->gpio_a = of_get_gpio_flags(np, 0, &flags);
+	pdata->inverted_a = flags & OF_GPIO_ACTIVE_LOW;
+
+	pdata->gpio_b = of_get_gpio_flags(np, 1, &flags);
+	pdata->inverted_b = flags & OF_GPIO_ACTIVE_LOW;
+
+	pdata->relative_axis = !!of_get_property(np,
+					"rotary-encoder,relative-axis", NULL);
+	pdata->rollover = !!of_get_property(np,
+					"rotary-encoder,rollover", NULL);
+	pdata->half_period = !!of_get_property(np,
+					"rotary-encoder,half-period", NULL);
+
+	return pdata;
+}
+#else
+static inline struct rotary_encoder_platform_data *
+rotary_encoder_parse_dt(struct device *dev)
+{
+	return NULL;
+}
+#endif
+
 static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 {
-	struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+	struct device *dev = &pdev->dev;
+	const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);
 	struct rotary_encoder *encoder;
 	struct input_dev *input;
 	irq_handler_t handler;
 	int err;
 
 	if (!pdata) {
-		dev_err(&pdev->dev, "missing platform data\n");
-		return -ENOENT;
+		pdata = rotary_encoder_parse_dt(dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+
+		if (!pdata) {
+			dev_err(dev, "missing platform data\n");
+			return -EINVAL;
+		}
 	}
 
 	encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
 	input = input_allocate_device();
 	if (!encoder || !input) {
-		dev_err(&pdev->dev, "failed to allocate memory for device\n");
 		err = -ENOMEM;
 		goto exit_free_mem;
 	}
 
 	encoder->input = input;
 	encoder->pdata = pdata;
-	encoder->irq_a = gpio_to_irq(pdata->gpio_a);
-	encoder->irq_b = gpio_to_irq(pdata->gpio_b);
 
-	/* create and register the input driver */
 	input->name = pdev->name;
 	input->id.bustype = BUS_HOST;
-	input->dev.parent = &pdev->dev;
+	input->dev.parent = dev;
 
 	if (pdata->relative_axis) {
 		input->evbit[0] = BIT_MASK(EV_REL);
@@ -180,40 +235,21 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 				     pdata->axis, 0, pdata->steps, 0, 1);
 	}
 
-	err = input_register_device(input);
-	if (err) {
-		dev_err(&pdev->dev, "failed to register input device\n");
-		goto exit_free_mem;
-	}
-
 	/* request the GPIOs */
-	err = gpio_request(pdata->gpio_a, DRV_NAME);
-	if (err) {
-		dev_err(&pdev->dev, "unable to request GPIO %d\n",
-			pdata->gpio_a);
-		goto exit_unregister_input;
-	}
-
-	err = gpio_direction_input(pdata->gpio_a);
+	err = gpio_request_one(pdata->gpio_a, GPIOF_IN, dev_name(dev));
 	if (err) {
-		dev_err(&pdev->dev, "unable to set GPIO %d for input\n",
-			pdata->gpio_a);
-		goto exit_unregister_input;
+		dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_a);
+		goto exit_free_mem;
 	}
 
-	err = gpio_request(pdata->gpio_b, DRV_NAME);
+	err = gpio_request_one(pdata->gpio_b, GPIOF_IN, dev_name(dev));
 	if (err) {
-		dev_err(&pdev->dev, "unable to request GPIO %d\n",
-			pdata->gpio_b);
+		dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_b);
 		goto exit_free_gpio_a;
 	}
 
-	err = gpio_direction_input(pdata->gpio_b);
-	if (err) {
-		dev_err(&pdev->dev, "unable to set GPIO %d for input\n",
-			pdata->gpio_b);
-		goto exit_free_gpio_a;
-	}
+	encoder->irq_a = gpio_to_irq(pdata->gpio_a);
+	encoder->irq_b = gpio_to_irq(pdata->gpio_b);
 
 	/* request the IRQs */
 	if (pdata->half_period) {
@@ -227,8 +263,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  DRV_NAME, encoder);
 	if (err) {
-		dev_err(&pdev->dev, "unable to request IRQ %d\n",
-			encoder->irq_a);
+		dev_err(dev, "unable to request IRQ %d\n", encoder->irq_a);
 		goto exit_free_gpio_b;
 	}
 
@@ -236,43 +271,55 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  DRV_NAME, encoder);
 	if (err) {
-		dev_err(&pdev->dev, "unable to request IRQ %d\n",
-			encoder->irq_b);
+		dev_err(dev, "unable to request IRQ %d\n", encoder->irq_b);
 		goto exit_free_irq_a;
 	}
 
+	err = input_register_device(input);
+	if (err) {
+		dev_err(dev, "failed to register input device\n");
+		goto exit_free_irq_b;
+	}
+
 	platform_set_drvdata(pdev, encoder);
 
 	return 0;
 
+exit_free_irq_b:
+	free_irq(encoder->irq_b, encoder);
 exit_free_irq_a:
 	free_irq(encoder->irq_a, encoder);
 exit_free_gpio_b:
 	gpio_free(pdata->gpio_b);
 exit_free_gpio_a:
 	gpio_free(pdata->gpio_a);
-exit_unregister_input:
-	input_unregister_device(input);
-	input = NULL; /* so we don't try to free it */
 exit_free_mem:
 	input_free_device(input);
 	kfree(encoder);
+	if (!dev_get_platdata(&pdev->dev))
+		kfree(pdata);
+
 	return err;
 }
 
 static int __devexit rotary_encoder_remove(struct platform_device *pdev)
 {
 	struct rotary_encoder *encoder = platform_get_drvdata(pdev);
-	struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+	const struct rotary_encoder_platform_data *pdata = encoder->pdata;
 
 	free_irq(encoder->irq_a, encoder);
 	free_irq(encoder->irq_b, encoder);
 	gpio_free(pdata->gpio_a);
 	gpio_free(pdata->gpio_b);
+
 	input_unregister_device(encoder->input);
-	platform_set_drvdata(pdev, NULL);
 	kfree(encoder);
 
+	if (!dev_get_platdata(&pdev->dev))
+		kfree(pdata);
+
+	platform_set_drvdata(pdev, NULL);
+
 	return 0;
 }
 
@@ -282,6 +329,7 @@ static struct platform_driver rotary_encoder_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(rotary_encoder_of_match),
 	}
 };
 module_platform_driver(rotary_encoder_driver);
diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
index 38e4b507b94..b3dd96d6448 100644
--- a/drivers/input/misc/twl4030-pwrbutton.c
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -42,6 +42,7 @@ static irqreturn_t powerbutton_irq(int irq, void *_pwr)
 	err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &value,
 				STS_HW_CONDITIONS);
 	if (!err)  {
+		pm_wakeup_event(pwr->dev.parent, 0);
 		input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ);
 		input_sync(pwr);
 	} else {
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 736056897e5..a0a4bbaef02 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -40,7 +40,8 @@
 #include <linux/input/mt.h>
 #include "../input-compat.h"
 
-static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+static int uinput_dev_event(struct input_dev *dev,
+			    unsigned int type, unsigned int code, int value)
 {
 	struct uinput_device	*udev = input_get_drvdata(dev);
 
@@ -56,10 +57,11 @@ static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned i
 }
 
 /* Atomically allocate an ID for the given request. Returns 0 on success. */
-static int uinput_request_alloc_id(struct uinput_device *udev, struct uinput_request *request)
+static bool uinput_request_alloc_id(struct uinput_device *udev,
+				    struct uinput_request *request)
 {
-	int id;
-	int err = -1;
+	unsigned int id;
+	bool reserved = false;
 
 	spin_lock(&udev->requests_lock);
 
@@ -67,32 +69,35 @@ static int uinput_request_alloc_id(struct uinput_device *udev, struct uinput_req
 		if (!udev->requests[id]) {
 			request->id = id;
 			udev->requests[id] = request;
-			err = 0;
+			reserved = true;
 			break;
 		}
 	}
 
 	spin_unlock(&udev->requests_lock);
-	return err;
+	return reserved;
 }
 
-static struct uinput_request *uinput_request_find(struct uinput_device *udev, int id)
+static struct uinput_request *uinput_request_find(struct uinput_device *udev,
+						  unsigned int id)
 {
 	/* Find an input request, by ID. Returns NULL if the ID isn't valid. */
-	if (id >= UINPUT_NUM_REQUESTS || id < 0)
+	if (id >= UINPUT_NUM_REQUESTS)
 		return NULL;
 
 	return udev->requests[id];
 }
 
-static inline int uinput_request_reserve_slot(struct uinput_device *udev, struct uinput_request *request)
+static int uinput_request_reserve_slot(struct uinput_device *udev,
+				       struct uinput_request *request)
 {
 	/* Allocate slot. If none are available right away, wait. */
 	return wait_event_interruptible(udev->requests_waitq,
-					!uinput_request_alloc_id(udev, request));
+					uinput_request_alloc_id(udev, request));
 }
 
-static void uinput_request_done(struct uinput_device *udev, struct uinput_request *request)
+static void uinput_request_done(struct uinput_device *udev,
+				struct uinput_request *request)
 {
 	/* Mark slot as available */
 	udev->requests[request->id] = NULL;
@@ -101,14 +106,11 @@ static void uinput_request_done(struct uinput_device *udev, struct uinput_reques
 	complete(&request->done);
 }
 
-static int uinput_request_submit(struct uinput_device *udev, struct uinput_request *request)
+static int uinput_request_send(struct uinput_device *udev,
+			       struct uinput_request *request)
 {
 	int retval;
 
-	retval = uinput_request_reserve_slot(udev, request);
-	if (retval)
-		return retval;
-
 	retval = mutex_lock_interruptible(&udev->mutex);
 	if (retval)
 		return retval;
@@ -118,7 +120,12 @@ static int uinput_request_submit(struct uinput_device *udev, struct uinput_reque
 		goto out;
 	}
 
-	/* Tell our userspace app about this new request by queueing an input event */
+	init_completion(&request->done);
+
+	/*
+	 * Tell our userspace application about this new request
+	 * by queueing an input event.
+	 */
 	uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
 
  out:
@@ -126,8 +133,27 @@ static int uinput_request_submit(struct uinput_device *udev, struct uinput_reque
 	return retval;
 }
 
+static int uinput_request_submit(struct uinput_device *udev,
+				 struct uinput_request *request)
+{
+	int error;
+
+	error = uinput_request_reserve_slot(udev, request);
+	if (error)
+		return error;
+
+	error = uinput_request_send(udev, request);
+	if (error) {
+		uinput_request_done(udev, request);
+		return error;
+	}
+
+	wait_for_completion(&request->done);
+	return request->retval;
+}
+
 /*
- * Fail all ouitstanding requests so handlers don't wait for the userspace
+ * Fail all outstanding requests so handlers don't wait for the userspace
  * to finish processing them.
  */
 static void uinput_flush_requests(struct uinput_device *udev)
@@ -163,11 +189,12 @@ static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
 	return uinput_dev_event(dev, EV_FF, effect_id, value);
 }
 
-static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
+static int uinput_dev_upload_effect(struct input_dev *dev,
+				    struct ff_effect *effect,
+				    struct ff_effect *old)
 {
 	struct uinput_device *udev = input_get_drvdata(dev);
 	struct uinput_request request;
-	int retval;
 
 	/*
 	 * uinput driver does not currently support periodic effects with
@@ -180,42 +207,25 @@ static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *eff
 			effect->u.periodic.waveform == FF_CUSTOM)
 		return -EINVAL;
 
-	request.id = -1;
-	init_completion(&request.done);
 	request.code = UI_FF_UPLOAD;
 	request.u.upload.effect = effect;
 	request.u.upload.old = old;
 
-	retval = uinput_request_submit(udev, &request);
-	if (!retval) {
-		wait_for_completion(&request.done);
-		retval = request.retval;
-	}
-
-	return retval;
+	return uinput_request_submit(udev, &request);
 }
 
 static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
 {
 	struct uinput_device *udev = input_get_drvdata(dev);
 	struct uinput_request request;
-	int retval;
 
 	if (!test_bit(EV_FF, dev->evbit))
 		return -ENOSYS;
 
-	request.id = -1;
-	init_completion(&request.done);
 	request.code = UI_FF_ERASE;
 	request.u.effect_id = effect_id;
 
-	retval = uinput_request_submit(udev, &request);
-	if (!retval) {
-		wait_for_completion(&request.done);
-		retval = request.retval;
-	}
-
-	return retval;
+	return uinput_request_submit(udev, &request);
 }
 
 static void uinput_destroy_device(struct uinput_device *udev)
@@ -347,7 +357,8 @@ static int uinput_allocate_device(struct uinput_device *udev)
 	return 0;
 }
 
-static int uinput_setup_device(struct uinput_device *udev, const char __user *buffer, size_t count)
+static int uinput_setup_device(struct uinput_device *udev,
+			       const char __user *buffer, size_t count)
 {
 	struct uinput_user_dev	*user_dev;
 	struct input_dev	*dev;
@@ -405,7 +416,7 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
 			goto exit;
 		if (test_bit(ABS_MT_SLOT, dev->absbit)) {
 			int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
-			input_mt_init_slots(dev, nslot);
+			input_mt_init_slots(dev, nslot, 0);
 		} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
 			input_set_events_per_packet(dev, 60);
 		}
@@ -419,7 +430,8 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
 	return retval;
 }
 
-static inline ssize_t uinput_inject_event(struct uinput_device *udev, const char __user *buffer, size_t count)
+static ssize_t uinput_inject_event(struct uinput_device *udev,
+				   const char __user *buffer, size_t count)
 {
 	struct input_event ev;
 
@@ -434,11 +446,15 @@ static inline ssize_t uinput_inject_event(struct uinput_device *udev, const char
 	return input_event_size();
 }
 
-static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t uinput_write(struct file *file, const char __user *buffer,
+			    size_t count, loff_t *ppos)
 {
 	struct uinput_device *udev = file->private_data;
 	int retval;
 
+	if (count == 0)
+		return 0;
+
 	retval = mutex_lock_interruptible(&udev->mutex);
 	if (retval)
 		return retval;
@@ -452,42 +468,74 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t
 	return retval;
 }
 
-static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+static bool uinput_fetch_next_event(struct uinput_device *udev,
+				    struct input_event *event)
 {
-	struct uinput_device *udev = file->private_data;
-	int retval = 0;
+	bool have_event;
 
-	if (udev->state != UIST_CREATED)
-		return -ENODEV;
+	spin_lock_irq(&udev->dev->event_lock);
 
-	if (udev->head == udev->tail && (file->f_flags & O_NONBLOCK))
-		return -EAGAIN;
+	have_event = udev->head != udev->tail;
+	if (have_event) {
+		*event = udev->buff[udev->tail];
+		udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
+	}
 
-	retval = wait_event_interruptible(udev->waitq,
-			udev->head != udev->tail || udev->state != UIST_CREATED);
-	if (retval)
-		return retval;
+	spin_unlock_irq(&udev->dev->event_lock);
 
-	retval = mutex_lock_interruptible(&udev->mutex);
-	if (retval)
-		return retval;
+	return have_event;
+}
 
-	if (udev->state != UIST_CREATED) {
-		retval = -ENODEV;
-		goto out;
-	}
+static ssize_t uinput_events_to_user(struct uinput_device *udev,
+				     char __user *buffer, size_t count)
+{
+	struct input_event event;
+	size_t read = 0;
 
-	while (udev->head != udev->tail && retval + input_event_size() <= count) {
-		if (input_event_to_user(buffer + retval, &udev->buff[udev->tail])) {
-			retval = -EFAULT;
-			goto out;
-		}
-		udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
-		retval += input_event_size();
+	while (read + input_event_size() <= count &&
+	       uinput_fetch_next_event(udev, &event)) {
+
+		if (input_event_to_user(buffer + read, &event))
+			return -EFAULT;
+
+		read += input_event_size();
 	}
 
- out:
-	mutex_unlock(&udev->mutex);
+	return read;
+}
+
+static ssize_t uinput_read(struct file *file, char __user *buffer,
+			   size_t count, loff_t *ppos)
+{
+	struct uinput_device *udev = file->private_data;
+	ssize_t retval;
+
+	if (count != 0 && count < input_event_size())
+		return -EINVAL;
+
+	do {
+		retval = mutex_lock_interruptible(&udev->mutex);
+		if (retval)
+			return retval;
+
+		if (udev->state != UIST_CREATED)
+			retval = -ENODEV;
+		else if (udev->head == udev->tail &&
+			 (file->f_flags & O_NONBLOCK))
+			retval = -EAGAIN;
+		else
+			retval = uinput_events_to_user(udev, buffer, count);
+
+		mutex_unlock(&udev->mutex);
+
+		if (retval || count == 0)
+			break;
+
+		if (!(file->f_flags & O_NONBLOCK))
+			retval = wait_event_interruptible(udev->waitq,
+						  udev->head != udev->tail ||
+						  udev->state != UIST_CREATED);
+	} while (retval == 0);
 
 	return retval;
 }
@@ -516,8 +564,8 @@ static int uinput_release(struct inode *inode, struct file *file)
 
 #ifdef CONFIG_COMPAT
 struct uinput_ff_upload_compat {
-	int			request_id;
-	int			retval;
+	__u32			request_id;
+	__s32			retval;
 	struct ff_effect_compat	effect;
 	struct ff_effect_compat	old;
 };
@@ -703,7 +751,8 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 				break;
 
 			req = uinput_request_find(udev, ff_up.request_id);
-			if (!req || req->code != UI_FF_UPLOAD || !req->u.upload.effect) {
+			if (!req || req->code != UI_FF_UPLOAD ||
+			    !req->u.upload.effect) {
 				retval = -EINVAL;
 				break;
 			}
@@ -786,7 +835,8 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 }
 
 #ifdef CONFIG_COMPAT
-static long uinput_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long uinput_compat_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
 {
 	return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
 }
@@ -831,4 +881,3 @@ MODULE_VERSION("0.3");
 
 module_init(uinput_init);
 module_exit(uinput_exit);
-
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 4a1347e91bd..cf5af1f495e 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1620,7 +1620,7 @@ int alps_init(struct psmouse *psmouse)
 	case ALPS_PROTO_V3:
 	case ALPS_PROTO_V4:
 		set_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
-		input_mt_init_slots(dev1, 2);
+		input_mt_init_slots(dev1, 2, 0);
 		input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, ALPS_V3_X_MAX, 0, 0);
 		input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, ALPS_V3_Y_MAX, 0, 0);
 
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index d528c23e194..3a78f235fa3 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -40,6 +40,7 @@
 #include <linux/usb/input.h>
 #include <linux/hid.h>
 #include <linux/mutex.h>
+#include <linux/input/mt.h>
 
 #define USB_VENDOR_ID_APPLE		0x05ac
 
@@ -183,26 +184,26 @@ struct tp_finger {
 	__le16 abs_y;		/* absolute y coodinate */
 	__le16 rel_x;		/* relative x coodinate */
 	__le16 rel_y;		/* relative y coodinate */
-	__le16 size_major;	/* finger size, major axis? */
-	__le16 size_minor;	/* finger size, minor axis? */
+	__le16 tool_major;	/* tool area, major axis */
+	__le16 tool_minor;	/* tool area, minor axis */
 	__le16 orientation;	/* 16384 when point, else 15 bit angle */
-	__le16 force_major;	/* trackpad force, major axis? */
-	__le16 force_minor;	/* trackpad force, minor axis? */
+	__le16 touch_major;	/* touch area, major axis */
+	__le16 touch_minor;	/* touch area, minor axis */
 	__le16 unused[3];	/* zeros */
 	__le16 multi;		/* one finger: varies, more fingers: constant */
 } __attribute__((packed,aligned(2)));
 
 /* trackpad finger data size, empirically at least ten fingers */
+#define MAX_FINGERS		16
 #define SIZEOF_FINGER		sizeof(struct tp_finger)
-#define SIZEOF_ALL_FINGERS	(16 * SIZEOF_FINGER)
+#define SIZEOF_ALL_FINGERS	(MAX_FINGERS * SIZEOF_FINGER)
 #define MAX_FINGER_ORIENTATION	16384
 
 /* device-specific parameters */
 struct bcm5974_param {
-	int dim;		/* logical dimension */
-	int fuzz;		/* logical noise value */
-	int devmin;		/* device minimum reading */
-	int devmax;		/* device maximum reading */
+	int snratio;		/* signal-to-noise ratio */
+	int min;		/* device minimum reading */
+	int max;		/* device maximum reading */
 };
 
 /* device-specific configuration */
@@ -219,6 +220,7 @@ struct bcm5974_config {
 	struct bcm5974_param w;	/* finger width limits */
 	struct bcm5974_param x;	/* horizontal limits */
 	struct bcm5974_param y;	/* vertical limits */
+	struct bcm5974_param o;	/* orientation limits */
 };
 
 /* logical device structure */
@@ -234,23 +236,16 @@ struct bcm5974 {
 	struct bt_data *bt_data;	/* button transferred data */
 	struct urb *tp_urb;		/* trackpad usb request block */
 	u8 *tp_data;			/* trackpad transferred data */
-	int fingers;			/* number of fingers on trackpad */
+	const struct tp_finger *index[MAX_FINGERS];	/* finger index data */
+	struct input_mt_pos pos[MAX_FINGERS];		/* position array */
+	int slots[MAX_FINGERS];				/* slot assignments */
 };
 
-/* logical dimensions */
-#define DIM_PRESSURE	256		/* maximum finger pressure */
-#define DIM_WIDTH	16		/* maximum finger width */
-#define DIM_X		1280		/* maximum trackpad x value */
-#define DIM_Y		800		/* maximum trackpad y value */
-
 /* logical signal quality */
 #define SN_PRESSURE	45		/* pressure signal-to-noise ratio */
-#define SN_WIDTH	100		/* width signal-to-noise ratio */
+#define SN_WIDTH	25		/* width signal-to-noise ratio */
 #define SN_COORD	250		/* coordinate signal-to-noise ratio */
-
-/* pressure thresholds */
-#define PRESSURE_LOW	(2 * DIM_PRESSURE / SN_PRESSURE)
-#define PRESSURE_HIGH	(3 * PRESSURE_LOW)
+#define SN_ORIENT	10		/* orientation signal-to-noise ratio */
 
 /* device constants */
 static const struct bcm5974_config bcm5974_config_table[] = {
@@ -261,10 +256,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		0,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4824, 5342 },
-		{ DIM_Y, DIM_Y / SN_COORD, -172, 5820 }
+		{ SN_PRESSURE, 0, 256 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4824, 5342 },
+		{ SN_COORD, -172, 5820 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI,
@@ -273,10 +269,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		0,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4824, 4824 },
-		{ DIM_Y, DIM_Y / SN_COORD, -172, 4290 }
+		{ SN_PRESSURE, 0, 256 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4824, 4824 },
+		{ SN_COORD, -172, 4290 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI,
@@ -285,10 +282,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4460, 5166 },
-		{ DIM_Y, DIM_Y / SN_COORD, -75, 6700 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4460, 5166 },
+		{ SN_COORD, -75, 6700 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI,
@@ -297,10 +295,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4620, 5140 },
-		{ DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4620, 5140 },
+		{ SN_COORD, -150, 6600 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI,
@@ -309,10 +308,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4616, 5112 },
-		{ DIM_Y, DIM_Y / SN_COORD, -142, 5234 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4616, 5112 },
+		{ SN_COORD, -142, 5234 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI,
@@ -321,10 +321,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4415, 5050 },
-		{ DIM_Y, DIM_Y / SN_COORD, -55, 6680 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4415, 5050 },
+		{ SN_COORD, -55, 6680 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI,
@@ -333,10 +334,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4620, 5140 },
-		{ DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4620, 5140 },
+		{ SN_COORD, -150, 6600 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI,
@@ -345,10 +347,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4750, 5280 },
-		{ DIM_Y, DIM_Y / SN_COORD, -150, 6730 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4750, 5280 },
+		{ SN_COORD, -150, 6730 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI,
@@ -357,10 +360,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4620, 5140 },
-		{ DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4620, 5140 },
+		{ SN_COORD, -150, 6600 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{
 		USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI,
@@ -369,10 +373,11 @@ static const struct bcm5974_config bcm5974_config_table[] = {
 		HAS_INTEGRATED_BUTTON,
 		0x84, sizeof(struct bt_data),
 		0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
-		{ DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
-		{ DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
-		{ DIM_X, DIM_X / SN_COORD, -4750, 5280 },
-		{ DIM_Y, DIM_Y / SN_COORD, -150, 6730 }
+		{ SN_PRESSURE, 0, 300 },
+		{ SN_WIDTH, 0, 2048 },
+		{ SN_COORD, -4750, 5280 },
+		{ SN_COORD, -150, 6730 },
+		{ SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION }
 	},
 	{}
 };
@@ -396,18 +401,11 @@ static inline int raw2int(__le16 x)
 	return (signed short)le16_to_cpu(x);
 }
 
-/* scale device data to logical dimensions (asserts devmin < devmax) */
-static inline int int2scale(const struct bcm5974_param *p, int x)
-{
-	return x * p->dim / (p->devmax - p->devmin);
-}
-
-/* all logical value ranges are [0,dim). */
-static inline int int2bound(const struct bcm5974_param *p, int x)
+static void set_abs(struct input_dev *input, unsigned int code,
+		    const struct bcm5974_param *p)
 {
-	int s = int2scale(p, x);
-
-	return clamp_val(s, 0, p->dim - 1);
+	int fuzz = p->snratio ? (p->max - p->min) / p->snratio : 0;
+	input_set_abs_params(input, code, p->min, p->max, fuzz, 0);
 }
 
 /* setup which logical events to report */
@@ -416,48 +414,30 @@ static void setup_events_to_report(struct input_dev *input_dev,
 {
 	__set_bit(EV_ABS, input_dev->evbit);
 
-	input_set_abs_params(input_dev, ABS_PRESSURE,
-				0, cfg->p.dim, cfg->p.fuzz, 0);
-	input_set_abs_params(input_dev, ABS_TOOL_WIDTH,
-				0, cfg->w.dim, cfg->w.fuzz, 0);
-	input_set_abs_params(input_dev, ABS_X,
-				0, cfg->x.dim, cfg->x.fuzz, 0);
-	input_set_abs_params(input_dev, ABS_Y,
-				0, cfg->y.dim, cfg->y.fuzz, 0);
+	/* for synaptics only */
+	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 256, 5, 0);
+	input_set_abs_params(input_dev, ABS_TOOL_WIDTH, 0, 16, 0, 0);
 
 	/* finger touch area */
-	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
-			     cfg->w.devmin, cfg->w.devmax, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR,
-			     cfg->w.devmin, cfg->w.devmax, 0, 0);
+	set_abs(input_dev, ABS_MT_TOUCH_MAJOR, &cfg->w);
+	set_abs(input_dev, ABS_MT_TOUCH_MINOR, &cfg->w);
 	/* finger approach area */
-	input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR,
-			     cfg->w.devmin, cfg->w.devmax, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR,
-			     cfg->w.devmin, cfg->w.devmax, 0, 0);
+	set_abs(input_dev, ABS_MT_WIDTH_MAJOR, &cfg->w);
+	set_abs(input_dev, ABS_MT_WIDTH_MINOR, &cfg->w);
 	/* finger orientation */
-	input_set_abs_params(input_dev, ABS_MT_ORIENTATION,
-			     -MAX_FINGER_ORIENTATION,
-			     MAX_FINGER_ORIENTATION, 0, 0);
+	set_abs(input_dev, ABS_MT_ORIENTATION, &cfg->o);
 	/* finger position */
-	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
-			     cfg->x.devmin, cfg->x.devmax, 0, 0);
-	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
-			     cfg->y.devmin, cfg->y.devmax, 0, 0);
+	set_abs(input_dev, ABS_MT_POSITION_X, &cfg->x);
+	set_abs(input_dev, ABS_MT_POSITION_Y, &cfg->y);
 
 	__set_bit(EV_KEY, input_dev->evbit);
-	__set_bit(BTN_TOUCH, input_dev->keybit);
-	__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
-	__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
-	__set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
-	__set_bit(BTN_TOOL_QUADTAP, input_dev->keybit);
 	__set_bit(BTN_LEFT, input_dev->keybit);
 
-	__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
 	if (cfg->caps & HAS_INTEGRATED_BUTTON)
 		__set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
 
-	input_set_events_per_packet(input_dev, 60);
+	input_mt_init_slots(input_dev, MAX_FINGERS,
+		INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK);
 }
 
 /* report button data as logical button state */
@@ -477,24 +457,44 @@ static int report_bt_state(struct bcm5974 *dev, int size)
 	return 0;
 }
 
-static void report_finger_data(struct input_dev *input,
-			       const struct bcm5974_config *cfg,
+static void report_finger_data(struct input_dev *input, int slot,
+			       const struct input_mt_pos *pos,
 			       const struct tp_finger *f)
 {
+	input_mt_slot(input, slot);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
+
 	input_report_abs(input, ABS_MT_TOUCH_MAJOR,
-			 raw2int(f->force_major) << 1);
+			 raw2int(f->touch_major) << 1);
 	input_report_abs(input, ABS_MT_TOUCH_MINOR,
-			 raw2int(f->force_minor) << 1);
+			 raw2int(f->touch_minor) << 1);
 	input_report_abs(input, ABS_MT_WIDTH_MAJOR,
-			 raw2int(f->size_major) << 1);
+			 raw2int(f->tool_major) << 1);
 	input_report_abs(input, ABS_MT_WIDTH_MINOR,
-			 raw2int(f->size_minor) << 1);
+			 raw2int(f->tool_minor) << 1);
 	input_report_abs(input, ABS_MT_ORIENTATION,
 			 MAX_FINGER_ORIENTATION - raw2int(f->orientation));
-	input_report_abs(input, ABS_MT_POSITION_X, raw2int(f->abs_x));
-	input_report_abs(input, ABS_MT_POSITION_Y,
-			 cfg->y.devmin + cfg->y.devmax - raw2int(f->abs_y));
-	input_mt_sync(input);
+	input_report_abs(input, ABS_MT_POSITION_X, pos->x);
+	input_report_abs(input, ABS_MT_POSITION_Y, pos->y);
+}
+
+static void report_synaptics_data(struct input_dev *input,
+				  const struct bcm5974_config *cfg,
+				  const struct tp_finger *f, int raw_n)
+{
+	int abs_p = 0, abs_w = 0;
+
+	if (raw_n) {
+		int p = raw2int(f->touch_major);
+		int w = raw2int(f->tool_major);
+		if (p > 0 && raw2int(f->origin)) {
+			abs_p = clamp_val(256 * p / cfg->p.max, 0, 255);
+			abs_w = clamp_val(16 * w / cfg->w.max, 0, 15);
+		}
+	}
+
+	input_report_abs(input, ABS_PRESSURE, abs_p);
+	input_report_abs(input, ABS_TOOL_WIDTH, abs_w);
 }
 
 /* report trackpad data as logical trackpad state */
@@ -503,9 +503,7 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 	const struct bcm5974_config *c = &dev->cfg;
 	const struct tp_finger *f;
 	struct input_dev *input = dev->input;
-	int raw_p, raw_w, raw_x, raw_y, raw_n, i;
-	int ptest, origin, ibt = 0, nmin = 0, nmax = 0;
-	int abs_p = 0, abs_w = 0, abs_x = 0, abs_y = 0;
+	int raw_n, i, n = 0;
 
 	if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0)
 		return -EIO;
@@ -514,76 +512,29 @@ static int report_tp_state(struct bcm5974 *dev, int size)
 	f = (const struct tp_finger *)(dev->tp_data + c->tp_offset);
 	raw_n = (size - c->tp_offset) / SIZEOF_FINGER;
 
-	/* always track the first finger; when detached, start over */
-	if (raw_n) {
-
-		/* report raw trackpad data */
-		for (i = 0; i < raw_n; i++)
-			report_finger_data(input, c, &f[i]);
-
-		raw_p = raw2int(f->force_major);
-		raw_w = raw2int(f->size_major);
-		raw_x = raw2int(f->abs_x);
-		raw_y = raw2int(f->abs_y);
-
-		dprintk(9,
-			"bcm5974: "
-			"raw: p: %+05d w: %+05d x: %+05d y: %+05d n: %d\n",
-			raw_p, raw_w, raw_x, raw_y, raw_n);
-
-		ptest = int2bound(&c->p, raw_p);
-		origin = raw2int(f->origin);
-
-		/* while tracking finger still valid, count all fingers */
-		if (ptest > PRESSURE_LOW && origin) {
-			abs_p = ptest;
-			abs_w = int2bound(&c->w, raw_w);
-			abs_x = int2bound(&c->x, raw_x - c->x.devmin);
-			abs_y = int2bound(&c->y, c->y.devmax - raw_y);
-			while (raw_n--) {
-				ptest = int2bound(&c->p,
-						  raw2int(f->force_major));
-				if (ptest > PRESSURE_LOW)
-					nmax++;
-				if (ptest > PRESSURE_HIGH)
-					nmin++;
-				f++;
-			}
-		}
+	for (i = 0; i < raw_n; i++) {
+		if (raw2int(f[i].touch_major) == 0)
+			continue;
+		dev->pos[n].x = raw2int(f[i].abs_x);
+		dev->pos[n].y = c->y.min + c->y.max - raw2int(f[i].abs_y);
+		dev->index[n++] = &f[i];
 	}
 
-	/* set the integrated button if applicable */
-	if (c->tp_type == TYPE2)
-		ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
-
-	if (dev->fingers < nmin)
-		dev->fingers = nmin;
-	if (dev->fingers > nmax)
-		dev->fingers = nmax;
-
-	input_report_key(input, BTN_TOUCH, dev->fingers > 0);
-	input_report_key(input, BTN_TOOL_FINGER, dev->fingers == 1);
-	input_report_key(input, BTN_TOOL_DOUBLETAP, dev->fingers == 2);
-	input_report_key(input, BTN_TOOL_TRIPLETAP, dev->fingers == 3);
-	input_report_key(input, BTN_TOOL_QUADTAP, dev->fingers > 3);
-
-	input_report_abs(input, ABS_PRESSURE, abs_p);
-	input_report_abs(input, ABS_TOOL_WIDTH, abs_w);
+	input_mt_assign_slots(input, dev->slots, dev->pos, n);
 
-	if (abs_p) {
-		input_report_abs(input, ABS_X, abs_x);
-		input_report_abs(input, ABS_Y, abs_y);
+	for (i = 0; i < n; i++)
+		report_finger_data(input, dev->slots[i],
+				   &dev->pos[i], dev->index[i]);
 
-		dprintk(8,
-			"bcm5974: abs: p: %+05d w: %+05d x: %+05d y: %+05d "
-			"nmin: %d nmax: %d n: %d ibt: %d\n", abs_p, abs_w,
-			abs_x, abs_y, nmin, nmax, dev->fingers, ibt);
+	input_mt_sync_frame(input);
 
-	}
+	report_synaptics_data(input, c, f, raw_n);
 
 	/* type 2 reports button events via ibt only */
-	if (c->tp_type == TYPE2)
+	if (c->tp_type == TYPE2) {
+		int ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
 		input_report_key(input, BTN_LEFT, ibt);
+	}
 
 	input_sync(input);
 
@@ -742,9 +693,11 @@ static int bcm5974_start_traffic(struct bcm5974 *dev)
 		goto err_out;
 	}
 
-	error = usb_submit_urb(dev->bt_urb, GFP_KERNEL);
-	if (error)
-		goto err_reset_mode;
+	if (dev->bt_urb) {
+		error = usb_submit_urb(dev->bt_urb, GFP_KERNEL);
+		if (error)
+			goto err_reset_mode;
+	}
 
 	error = usb_submit_urb(dev->tp_urb, GFP_KERNEL);
 	if (error)
@@ -868,19 +821,23 @@ static int bcm5974_probe(struct usb_interface *iface,
 	mutex_init(&dev->pm_mutex);
 
 	/* setup urbs */
-	dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!dev->bt_urb)
-		goto err_free_devs;
+	if (cfg->tp_type == TYPE1) {
+		dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL);
+		if (!dev->bt_urb)
+			goto err_free_devs;
+	}
 
 	dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!dev->tp_urb)
 		goto err_free_bt_urb;
 
-	dev->bt_data = usb_alloc_coherent(dev->udev,
+	if (dev->bt_urb) {
+		dev->bt_data = usb_alloc_coherent(dev->udev,
 					  dev->cfg.bt_datalen, GFP_KERNEL,
 					  &dev->bt_urb->transfer_dma);
-	if (!dev->bt_data)
-		goto err_free_urb;
+		if (!dev->bt_data)
+			goto err_free_urb;
+	}
 
 	dev->tp_data = usb_alloc_coherent(dev->udev,
 					  dev->cfg.tp_datalen, GFP_KERNEL,
@@ -888,10 +845,11 @@ static int bcm5974_probe(struct usb_interface *iface,
 	if (!dev->tp_data)
 		goto err_free_bt_buffer;
 
-	usb_fill_int_urb(dev->bt_urb, udev,
-			 usb_rcvintpipe(udev, cfg->bt_ep),
-			 dev->bt_data, dev->cfg.bt_datalen,
-			 bcm5974_irq_button, dev, 1);
+	if (dev->bt_urb)
+		usb_fill_int_urb(dev->bt_urb, udev,
+				 usb_rcvintpipe(udev, cfg->bt_ep),
+				 dev->bt_data, dev->cfg.bt_datalen,
+				 bcm5974_irq_button, dev, 1);
 
 	usb_fill_int_urb(dev->tp_urb, udev,
 			 usb_rcvintpipe(udev, cfg->tp_ep),
@@ -929,8 +887,9 @@ err_free_buffer:
 	usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
 		dev->tp_data, dev->tp_urb->transfer_dma);
 err_free_bt_buffer:
-	usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
-		dev->bt_data, dev->bt_urb->transfer_dma);
+	if (dev->bt_urb)
+		usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
+				  dev->bt_data, dev->bt_urb->transfer_dma);
 err_free_urb:
 	usb_free_urb(dev->tp_urb);
 err_free_bt_urb:
@@ -951,8 +910,9 @@ static void bcm5974_disconnect(struct usb_interface *iface)
 	input_unregister_device(dev->input);
 	usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
 			  dev->tp_data, dev->tp_urb->transfer_dma);
-	usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
-			  dev->bt_data, dev->bt_urb->transfer_dma);
+	if (dev->bt_urb)
+		usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
+				  dev->bt_data, dev->bt_urb->transfer_dma);
 	usb_free_urb(dev->tp_urb);
 	usb_free_urb(dev->bt_urb);
 	kfree(dev);
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 479011004a1..1e8e42fb03a 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1004,7 +1004,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
 					     ETP_WMAX_V2, 0, 0);
 		}
-		input_mt_init_slots(dev, 2);
+		input_mt_init_slots(dev, 2, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
 		break;
@@ -1035,7 +1035,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 		input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
 				     ETP_WMAX_V2, 0, 0);
 		/* Multitouch capable pad, up to 5 fingers. */
-		input_mt_init_slots(dev, ETP_MAX_FINGERS);
+		input_mt_init_slots(dev, ETP_MAX_FINGERS, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
 		input_abs_set_res(dev, ABS_MT_POSITION_X, x_res);
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 575f880727f..62be888e83d 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -334,11 +334,8 @@ static bool hgpk_is_byte_valid(struct psmouse *psmouse, unsigned char *packet)
 
 	if (!valid)
 		psmouse_dbg(psmouse,
-			    "bad data, mode %d (%d) %02x %02x %02x %02x %02x %02x\n",
-			    priv->mode, pktcnt,
-			    psmouse->packet[0], psmouse->packet[1],
-			    psmouse->packet[2], psmouse->packet[3],
-			    psmouse->packet[4], psmouse->packet[5]);
+			    "bad data, mode %d (%d) %*ph\n",
+			    priv->mode, pktcnt, 6, psmouse->packet);
 
 	return valid;
 }
@@ -1030,7 +1027,7 @@ static enum hgpk_model_t hgpk_get_model(struct psmouse *psmouse)
 		return -EIO;
 	}
 
-	psmouse_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
+	psmouse_dbg(psmouse, "ID: %*ph\n", 3, param);
 
 	/* HGPK signature: 0x67, 0x00, 0x<model> */
 	if (param[0] != 0x67 || param[1] != 0x00)
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
index a9e4bfdf31f..4fe055f2c53 100644
--- a/drivers/input/mouse/pxa930_trkball.c
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -20,7 +20,7 @@
 #include <linux/slab.h>
 
 #include <mach/hardware.h>
-#include <mach/pxa930_trkball.h>
+#include <linux/platform_data/mouse-pxa930_trkball.h>
 
 /* Trackball Controller Register Definitions */
 #define TBCR		(0x000C)
diff --git a/drivers/input/mouse/rpcmouse.c b/drivers/input/mouse/rpcmouse.c
index 272deddc8db..21c60fea5d3 100644
--- a/drivers/input/mouse/rpcmouse.c
+++ b/drivers/input/mouse/rpcmouse.c
@@ -42,7 +42,7 @@ static irqreturn_t rpcmouse_irq(int irq, void *dev_id)
 
 	x = (short) iomd_readl(IOMD_MOUSEX);
 	y = (short) iomd_readl(IOMD_MOUSEY);
-	b = (short) (__raw_readl(0xe0310000) ^ 0x70);
+	b = (short) (__raw_readl(IOMEM(0xe0310000)) ^ 0x70);
 
 	dx = x - rpcmouse_lastx;
 	dy = y - rpcmouse_lasty;
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index 3f5649f1908..e582922bacf 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -721,6 +721,17 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
 
 	switch (psmouse->packet[0] >> FSP_PKT_TYPE_SHIFT) {
 	case FSP_PKT_TYPE_ABS:
+
+		if ((packet[0] == 0x48 || packet[0] == 0x49) &&
+		    packet[1] == 0 && packet[2] == 0) {
+			/*
+			 * Ignore coordinate noise when finger leaving the
+			 * surface, otherwise cursor may jump to upper-left
+			 * corner.
+			 */
+			packet[3] &= 0xf0;
+		}
+
 		abs_x = GET_ABS_X(packet);
 		abs_y = GET_ABS_Y(packet);
 
@@ -960,7 +971,7 @@ static int fsp_set_input_params(struct psmouse *psmouse)
 
 		input_set_abs_params(dev, ABS_X, 0, abs_x, 0, 0);
 		input_set_abs_params(dev, ABS_Y, 0, abs_y, 0, 0);
-		input_mt_init_slots(dev, 2);
+		input_mt_init_slots(dev, 2, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, 0, abs_x, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, 0, abs_y, 0, 0);
 	}
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 14eaecea2b7..12d12ca3fee 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -53,14 +53,19 @@
 #define ABS_POS_BITS 13
 
 /*
- * Any position values from the hardware above the following limits are
- * treated as "wrapped around negative" values that have been truncated to
- * the 13-bit reporting range of the hardware. These are just reasonable
- * guesses and can be adjusted if hardware is found that operates outside
- * of these parameters.
+ * These values should represent the absolute maximum value that will
+ * be reported for a positive position value. Some Synaptics firmware
+ * uses this value to indicate a finger near the edge of the touchpad
+ * whose precise position cannot be determined.
+ *
+ * At least one touchpad is known to report positions in excess of this
+ * value which are actually negative values truncated to the 13-bit
+ * reporting range. These values have never been observed to be lower
+ * than 8184 (i.e. -8), so we treat all values greater than 8176 as
+ * negative and any other value as positive.
  */
-#define X_MAX_POSITIVE (((1 << ABS_POS_BITS) + XMAX) / 2)
-#define Y_MAX_POSITIVE (((1 << ABS_POS_BITS) + YMAX) / 2)
+#define X_MAX_POSITIVE 8176
+#define Y_MAX_POSITIVE 8176
 
 /*****************************************************************************
  *	Stuff we need even when we do not want native Synaptics support
@@ -604,11 +609,21 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
 		hw->right = (buf[0] & 0x02) ? 1 : 0;
 	}
 
-	/* Convert wrap-around values to negative */
+	/*
+	 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
+	 * is used by some firmware to indicate a finger at the edge of
+	 * the touchpad whose precise position cannot be determined, so
+	 * convert these values to the maximum axis value.
+	 */
 	if (hw->x > X_MAX_POSITIVE)
 		hw->x -= 1 << ABS_POS_BITS;
+	else if (hw->x == X_MAX_POSITIVE)
+		hw->x = XMAX;
+
 	if (hw->y > Y_MAX_POSITIVE)
 		hw->y -= 1 << ABS_POS_BITS;
+	else if (hw->y == Y_MAX_POSITIVE)
+		hw->y = YMAX;
 
 	return 0;
 }
@@ -1232,7 +1247,7 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
 
 	if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
-		input_mt_init_slots(dev, 2);
+		input_mt_init_slots(dev, 2, 0);
 		set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
 					ABS_MT_POSITION_Y);
 		/* Image sensors can report per-contact pressure */
@@ -1244,7 +1259,7 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	} else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
 		/* Non-image sensors with AGM use semi-mt */
 		__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
-		input_mt_init_slots(dev, 2);
+		input_mt_init_slots(dev, 2, 0);
 		set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
 					ABS_MT_POSITION_Y);
 	}
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index f14675702c0..063a174d3a8 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -376,12 +376,7 @@ static void synaptics_i2c_reschedule_work(struct synaptics_i2c *touch,
 
 	spin_lock_irqsave(&touch->lock, flags);
 
-	/*
-	 * If work is already scheduled then subsequent schedules will not
-	 * change the scheduled time that's why we have to cancel it first.
-	 */
-	__cancel_delayed_work(&touch->dwork);
-	schedule_delayed_work(&touch->dwork, delay);
+	mod_delayed_work(system_wq, &touch->dwork, delay);
 
 	spin_unlock_irqrestore(&touch->lock, flags);
 }
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 0110b5a3a16..964e43d81e2 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -551,17 +551,16 @@ static int mousedev_open(struct inode *inode, struct file *file)
 		return -ENODEV;
 
 	error = mutex_lock_interruptible(&mousedev_table_mutex);
-	if (error) {
+	if (error)
 		return error;
-	}
+
 	mousedev = mousedev_table[i];
 	if (mousedev)
 		get_device(&mousedev->dev);
 	mutex_unlock(&mousedev_table_mutex);
 
-	if (!mousedev) {
+	if (!mousedev)
 		return -ENODEV;
-	}
 
 	client = kzalloc(sizeof(struct mousedev_client), GFP_KERNEL);
 	if (!client) {
@@ -1088,7 +1087,7 @@ static int __init mousedev_init(void)
 #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
 	error = misc_register(&psaux_mouse);
 	if (error)
-		pr_warning("could not register psaux device, error: %d\n",
+		pr_warn("could not register psaux device, error: %d\n",
 			   error);
 	else
 		psaux_registered = 1;
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 2ffd110bd5b..2e77246c2e5 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -72,7 +72,7 @@ static int amba_kmi_open(struct serio *io)
 	unsigned int divisor;
 	int ret;
 
-	ret = clk_enable(kmi->clk);
+	ret = clk_prepare_enable(kmi->clk);
 	if (ret)
 		goto out;
 
@@ -92,7 +92,7 @@ static int amba_kmi_open(struct serio *io)
 	return 0;
 
  clk_disable:
-	clk_disable(kmi->clk);
+	clk_disable_unprepare(kmi->clk);
  out:
 	return ret;
 }
@@ -104,7 +104,7 @@ static void amba_kmi_close(struct serio *io)
 	writeb(0, KMICR);
 
 	free_irq(kmi->irq, kmi);
-	clk_disable(kmi->clk);
+	clk_disable_unprepare(kmi->clk);
 }
 
 static int __devinit amba_kmi_probe(struct amba_device *dev,
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index f5fbdf94de3..45887e31242 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -27,7 +27,7 @@
 #include <linux/module.h>
 
 #include <asm/mach-types.h>
-#include <plat/board-ams-delta.h>
+#include <mach/board-ams-delta.h>
 
 #include <mach/ams-delta-fiq.h>
 
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 5ec774d6c82..d6cc77a53c7 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -177,6 +177,20 @@ static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
 		},
 	},
 	{
+		/* Gigabyte T1005 - defines wrong chassis type ("Other") */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
+		},
+	},
+	{
+		/* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
+		},
+	},
+	{
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
@@ -321,6 +335,12 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 	},
 	{
 		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
+		},
+	},
+	{
+		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 		},
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index 75fb040a343..a70aa555bbf 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -180,11 +180,11 @@ int sparse_keymap_setup(struct input_dev *dev,
 	for (e = keymap; e->type != KE_END; e++)
 		map_size++;
 
-	map = kcalloc(map_size, sizeof (struct key_entry), GFP_KERNEL);
+	map = kcalloc(map_size, sizeof(struct key_entry), GFP_KERNEL);
 	if (!map)
 		return -ENOMEM;
 
-	memcpy(map, keymap, map_size * sizeof (struct key_entry));
+	memcpy(map, keymap, map_size * sizeof(struct key_entry));
 
 	for (i = 0; i < map_size; i++) {
 		entry = &map[i];
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 002041975de..08b462b6c0d 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -606,7 +606,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 				input_report_abs(input, ABS_WHEEL, 0);
 			}
 
-			if (data[2] | (data[3] & 0x01) | data[4]) {
+			if (data[2] | (data[3] & 0x01) | data[4] | data[5]) {
 				input_report_key(input, wacom->tool[1], 1);
 				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
 			} else {
@@ -1530,7 +1530,7 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 			__set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
 			__set_bit(BTN_TOOL_QUADTAP, input_dev->keybit);
 
-			input_mt_init_slots(input_dev, features->touch_max);
+			input_mt_init_slots(input_dev, features->touch_max, 0);
 
 			input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
 			                     0, 255, 0, 0);
@@ -1575,7 +1575,7 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 
 	case TABLETPC2FG:
 		if (features->device_type == BTN_TOOL_FINGER) {
-			input_mt_init_slots(input_dev, features->touch_max);
+			input_mt_init_slots(input_dev, features->touch_max, 0);
 			input_set_abs_params(input_dev, ABS_MT_TOOL_TYPE,
 					0, MT_TOOL_MAX, 0, 0);
 			input_set_abs_params(input_dev, ABS_MT_POSITION_X,
@@ -1631,7 +1631,7 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 
 			__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
 			__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
-			input_mt_init_slots(input_dev, features->touch_max);
+			input_mt_init_slots(input_dev, features->touch_max, 0);
 
 			if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
 				__set_bit(BTN_TOOL_TRIPLETAP,
@@ -1848,7 +1848,10 @@ static const struct wacom_features wacom_features_0x2A =
 	{ "Wacom Intuos5 M", WACOM_PKGLEN_INTUOS,  44704, 27940, 2047,
 	  63, INTUOS5, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xF4 =
-	{ "Wacom Cintiq 24HD",    WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
+	{ "Wacom Cintiq 24HD",       WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
+	  63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xF8 =
+	{ "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
 	  63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0x3F =
 	{ "Wacom Cintiq 21UX",    WACOM_PKGLEN_INTUOS,    87200, 65600, 1023,
@@ -2091,6 +2094,7 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0xEF) },
 	{ USB_DEVICE_WACOM(0x47) },
 	{ USB_DEVICE_WACOM(0xF4) },
+	{ USB_DEVICE_WACOM(0xF8) },
 	{ USB_DEVICE_WACOM(0xFA) },
 	{ USB_DEVICE_LENOVO(0x6004) },
 	{ }
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 4623cc69fc6..e92615d0b1b 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1152,7 +1152,7 @@ static int __devinit mxt_probe(struct i2c_client *client,
 
 	/* For multi touch */
 	num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1;
-	error = input_mt_init_slots(input_dev, num_mt_slots);
+	error = input_mt_init_slots(input_dev, num_mt_slots, 0);
 	if (error)
 		goto err_free_object;
 	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index f030d9ec795..8e60437ac85 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c
@@ -571,7 +571,7 @@ struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops,
 	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
 			     0, CY_MAXZ, 0, 0);
 
-	input_mt_init_slots(input_dev, CY_MAX_ID);
+	input_mt_init_slots(input_dev, CY_MAX_ID, 0);
 
 	error = request_threaded_irq(ts->irq, NULL, cyttsp_irq,
 				     IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 9afc777a40a..099d144ab7c 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -566,9 +566,12 @@ static ssize_t edt_ft5x06_debugfs_raw_data_read(struct file *file,
 	}
 
 	read = min_t(size_t, count, tsdata->raw_bufsize - *off);
-	error = copy_to_user(buf, tsdata->raw_buffer + *off, read);
-	if (!error)
-		*off += read;
+	if (copy_to_user(buf, tsdata->raw_buffer + *off, read)) {
+		error = -EFAULT;
+		goto out;
+	}
+
+	*off += read;
 out:
 	mutex_unlock(&tsdata->mutex);
 	return error ?: read;
@@ -602,6 +605,7 @@ edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)
 {
 	if (tsdata->debug_dir)
 		debugfs_remove_recursive(tsdata->debug_dir);
+	kfree(tsdata->raw_buffer);
 }
 
 #else
@@ -778,7 +782,7 @@ static int __devinit edt_ft5x06_ts_probe(struct i2c_client *client,
 			     0, tsdata->num_x * 64 - 1, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_Y,
 			     0, tsdata->num_y * 64 - 1, 0, 0);
-	error = input_mt_init_slots(input, MAX_SUPPORT_POINTS);
+	error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, 0);
 	if (error) {
 		dev_err(&client->dev, "Unable to init MT slots.\n");
 		goto err_free_mem;
@@ -843,7 +847,6 @@ static int __devexit edt_ft5x06_ts_remove(struct i2c_client *client)
 	if (gpio_is_valid(pdata->reset_pin))
 		gpio_free(pdata->reset_pin);
 
-	kfree(tsdata->raw_buffer);
 	kfree(tsdata);
 
 	return 0;
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
index 503c7096ed3..908407efc67 100644
--- a/drivers/input/touchscreen/eeti_ts.c
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -48,7 +48,7 @@ struct eeti_ts_priv {
 	struct input_dev *input;
 	struct work_struct work;
 	struct mutex mutex;
-	int irq, irq_active_high;
+	int irq_gpio, irq, irq_active_high;
 };
 
 #define EETI_TS_BITDEPTH	(11)
@@ -62,7 +62,7 @@ struct eeti_ts_priv {
 
 static inline int eeti_ts_irq_active(struct eeti_ts_priv *priv)
 {
-	return gpio_get_value(irq_to_gpio(priv->irq)) == priv->irq_active_high;
+	return gpio_get_value(priv->irq_gpio) == priv->irq_active_high;
 }
 
 static void eeti_ts_read(struct work_struct *work)
@@ -157,7 +157,7 @@ static void eeti_ts_close(struct input_dev *dev)
 static int __devinit eeti_ts_probe(struct i2c_client *client,
 				   const struct i2c_device_id *idp)
 {
-	struct eeti_ts_platform_data *pdata;
+	struct eeti_ts_platform_data *pdata = client->dev.platform_data;
 	struct eeti_ts_priv *priv;
 	struct input_dev *input;
 	unsigned int irq_flags;
@@ -199,9 +199,12 @@ static int __devinit eeti_ts_probe(struct i2c_client *client,
 
 	priv->client = client;
 	priv->input = input;
-	priv->irq = client->irq;
+	priv->irq_gpio = pdata->irq_gpio;
+	priv->irq = gpio_to_irq(pdata->irq_gpio);
 
-	pdata = client->dev.platform_data;
+	err = gpio_request_one(pdata->irq_gpio, GPIOF_IN, client->name);
+	if (err < 0)
+		goto err1;
 
 	if (pdata)
 		priv->irq_active_high = pdata->irq_active_high;
@@ -215,13 +218,13 @@ static int __devinit eeti_ts_probe(struct i2c_client *client,
 
 	err = input_register_device(input);
 	if (err)
-		goto err1;
+		goto err2;
 
 	err = request_irq(priv->irq, eeti_ts_isr, irq_flags,
 			  client->name, priv);
 	if (err) {
 		dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
-		goto err2;
+		goto err3;
 	}
 
 	/*
@@ -233,9 +236,11 @@ static int __devinit eeti_ts_probe(struct i2c_client *client,
 	device_init_wakeup(&client->dev, 0);
 	return 0;
 
-err2:
+err3:
 	input_unregister_device(input);
 	input = NULL; /* so we dont try to free it below */
+err2:
+	gpio_free(pdata->irq_gpio);
 err1:
 	input_free_device(input);
 	kfree(priv);
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 70524dd34f4..c1e3460f119 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -204,7 +204,7 @@ static int __devinit egalax_ts_probe(struct i2c_client *client,
 			     ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0);
 	input_set_abs_params(input_dev,
 			     ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0);
-	input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS);
+	input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS, 0);
 
 	input_set_drvdata(input_dev, ts);
 
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index c0044175a92..4ac69760ec0 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -252,7 +252,7 @@ static int __devinit ili210x_i2c_probe(struct i2c_client *client,
 	input_set_abs_params(input, ABS_Y, 0, ymax, 0, 0);
 
 	/* Multi touch */
-	input_mt_init_slots(input, MAX_TOUCHES);
+	input_mt_init_slots(input, MAX_TOUCHES, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_X, 0, xmax, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, ymax, 0, 0);
 
diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index 49c44bbf548..560cf09d1c5 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -404,7 +404,7 @@ static int __devinit mms114_probe(struct i2c_client *client,
 	input_set_abs_params(input_dev, ABS_Y, 0, data->pdata->y_size, 0, 0);
 
 	/* For multi touch */
-	input_mt_init_slots(input_dev, MMS114_MAX_TOUCH);
+	input_mt_init_slots(input_dev, MMS114_MAX_TOUCH, 0);
 	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
 			     0, MMS114_MAX_AREA, 0, 0);
 	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
index 4ccde45b9da..b49f0b83692 100644
--- a/drivers/input/touchscreen/penmount.c
+++ b/drivers/input/touchscreen/penmount.c
@@ -264,7 +264,7 @@ static int pm_connect(struct serio *serio, struct serio_driver *drv)
 	input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);
 
 	if (pm->maxcontacts > 1) {
-		input_mt_init_slots(pm->dev, pm->maxcontacts);
+		input_mt_init_slots(pm->dev, pm->maxcontacts, 0);
 		input_set_abs_params(pm->dev,
 				     ABS_MT_POSITION_X, 0, max_x, 0, 0);
 		input_set_abs_params(pm->dev,
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index bf1a0640006..549fa29548f 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -37,7 +37,7 @@
 
 #include <plat/adc.h>
 #include <plat/regs-adc.h>
-#include <plat/ts.h>
+#include <linux/platform_data/touchscreen-s3c2410.h>
 
 #define TSC_SLEEP  (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0))
 
@@ -406,7 +406,7 @@ static int s3c2410ts_resume(struct device *dev)
 	return 0;
 }
 
-static struct dev_pm_ops s3c_ts_pmops = {
+static const struct dev_pm_ops s3c_ts_pmops = {
 	.suspend	= s3c2410ts_suspend,
 	.resume		= s3c2410ts_resume,
 };
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index e32709e0dd6..721fdb3597c 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -304,6 +304,45 @@ static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 #define EGALAX_PKT_TYPE_REPT		0x80
 #define EGALAX_PKT_TYPE_DIAG		0x0A
 
+static int egalax_init(struct usbtouch_usb *usbtouch)
+{
+	int ret, i;
+	unsigned char *buf;
+	struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
+
+	/*
+	 * An eGalax diagnostic packet kicks the device into using the right
+	 * protocol.  We send a "check active" packet.  The response will be
+	 * read later and ignored.
+	 */
+
+	buf = kmalloc(3, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	buf[0] = EGALAX_PKT_TYPE_DIAG;
+	buf[1] = 1;	/* length */
+	buf[2] = 'A';	/* command - check active */
+
+	for (i = 0; i < 3; i++) {
+		ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				      0,
+				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				      0, 0, buf, 3,
+				      USB_CTRL_SET_TIMEOUT);
+		if (ret >= 0) {
+			ret = 0;
+			break;
+		}
+		if (ret != -EPIPE)
+			break;
+	}
+
+	kfree(buf);
+
+	return ret;
+}
+
 static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 {
 	if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
@@ -1056,6 +1095,7 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
 		.process_pkt	= usbtouch_process_multi,
 		.get_pkt_len	= egalax_get_pkt_len,
 		.read_data	= egalax_read_data,
+		.init		= egalax_init,
 	},
 #endif
 
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 8f9ad2f893b..9a83be6b658 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -471,7 +471,7 @@ static int w8001_setup(struct w8001 *w8001)
 		case 5:
 			w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
 
-			input_mt_init_slots(dev, 2);
+			input_mt_init_slots(dev, 2, 0);
 			input_set_abs_params(dev, ABS_MT_POSITION_X,
 						0, touch.x, 0, 0);
 			input_set_abs_params(dev, ABS_MT_POSITION_Y,
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index e83410721e3..52abb98a8ae 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -221,7 +221,7 @@ static void wm831x_ts_input_close(struct input_dev *idev)
 	synchronize_irq(wm831x_ts->pd_irq);
 
 	/* Make sure the IRQ completion work is quiesced */
-	flush_work_sync(&wm831x_ts->pd_data_work);
+	flush_work(&wm831x_ts->pd_data_work);
 
 	/* If we ended up with the pen down then make sure we revert back
 	 * to pen detection state for the next time we start up.
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 6d1cbdfc9b2..e89daf1b21b 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -266,7 +266,7 @@ static void swap_pci_ref(struct pci_dev **from, struct pci_dev *to)
 
 static int iommu_init_device(struct device *dev)
 {
-	struct pci_dev *dma_pdev, *pdev = to_pci_dev(dev);
+	struct pci_dev *dma_pdev = NULL, *pdev = to_pci_dev(dev);
 	struct iommu_dev_data *dev_data;
 	struct iommu_group *group;
 	u16 alias;
@@ -293,11 +293,18 @@ static int iommu_init_device(struct device *dev)
 		dev_data->alias_data = alias_data;
 
 		dma_pdev = pci_get_bus_and_slot(alias >> 8, alias & 0xff);
-	} else
+	}
+
+	if (dma_pdev == NULL)
 		dma_pdev = pci_dev_get(pdev);
 
+	/* Account for quirked devices */
 	swap_pci_ref(&dma_pdev, pci_get_dma_source(dma_pdev));
 
+	/*
+	 * If it's a multifunction device that does not support our
+	 * required ACS flags, add to the same group as function 0.
+	 */
 	if (dma_pdev->multifunction &&
 	    !pci_acs_enabled(dma_pdev, REQ_ACS_FLAGS))
 		swap_pci_ref(&dma_pdev,
@@ -305,14 +312,28 @@ static int iommu_init_device(struct device *dev)
 					  PCI_DEVFN(PCI_SLOT(dma_pdev->devfn),
 					  0)));
 
+	/*
+	 * Devices on the root bus go through the iommu.  If that's not us,
+	 * find the next upstream device and test ACS up to the root bus.
+	 * Finding the next device may require skipping virtual buses.
+	 */
 	while (!pci_is_root_bus(dma_pdev->bus)) {
-		if (pci_acs_path_enabled(dma_pdev->bus->self,
-					 NULL, REQ_ACS_FLAGS))
+		struct pci_bus *bus = dma_pdev->bus;
+
+		while (!bus->self) {
+			if (!pci_is_root_bus(bus))
+				bus = bus->parent;
+			else
+				goto root_bus;
+		}
+
+		if (pci_acs_path_enabled(bus->self, NULL, REQ_ACS_FLAGS))
 			break;
 
-		swap_pci_ref(&dma_pdev, pci_dev_get(dma_pdev->bus->self));
+		swap_pci_ref(&dma_pdev, pci_dev_get(bus->self));
 	}
 
+root_bus:
 	group = iommu_group_get(&dma_pdev->dev);
 	pci_dev_put(dma_pdev);
 	if (!group) {
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 500e7f15f5c..18a89b760aa 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1111,7 +1111,7 @@ static void print_iommu_info(void)
 
 		if (iommu->cap & (1 << IOMMU_CAP_EFR)) {
 			pr_info("AMD-Vi:  Extended features: ");
-			for (i = 0; ARRAY_SIZE(feat_str); ++i) {
+			for (i = 0; i < ARRAY_SIZE(feat_str); ++i) {
 				if (iommu_feature(iommu, (1ULL << i)))
 					pr_cont(" %s", feat_str[i]);
 			}
@@ -1131,9 +1131,6 @@ static int __init amd_iommu_init_pci(void)
 			break;
 	}
 
-	/* Make sure ACS will be enabled */
-	pci_request_acs();
-
 	ret = amd_iommu_init_devices();
 
 	print_iommu_info();
@@ -1652,6 +1649,9 @@ static bool detect_ivrs(void)
 
 	early_acpi_os_unmap_memory((char __iomem *)ivrs_base, ivrs_size);
 
+	/* Make sure ACS will be enabled during PCI probe */
+	pci_request_acs();
+
 	return true;
 }
 
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 45350ff5e93..80bad32aa46 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -732,9 +732,9 @@ static int exynos_iommu_domain_init(struct iommu_domain *domain)
 	spin_lock_init(&priv->pgtablelock);
 	INIT_LIST_HEAD(&priv->clients);
 
-	dom->geometry.aperture_start = 0;
-	dom->geometry.aperture_end   = ~0UL;
-	dom->geometry.force_aperture = true;
+	domain->geometry.aperture_start = 0;
+	domain->geometry.aperture_end   = ~0UL;
+	domain->geometry.force_aperture = true;
 
 	domain->priv = priv;
 	return 0;
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 7469b534664..db820d7dd0b 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2008,6 +2008,7 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw)
 	if (!drhd) {
 		printk(KERN_ERR "IOMMU: can't find DMAR for device %s\n",
 			pci_name(pdev));
+		free_domain_mem(domain);
 		return NULL;
 	}
 	iommu = drhd->iommu;
@@ -2350,7 +2351,7 @@ static int iommu_should_identity_map(struct pci_dev *pdev, int startup)
 			return 0;
 		if (pdev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
 			return 0;
-	} else if (pdev->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE)
+	} else if (pci_pcie_type(pdev) == PCI_EXP_TYPE_PCI_BRIDGE)
 		return 0;
 
 	/* 
@@ -3545,10 +3546,10 @@ found:
 		struct pci_dev *bridge = bus->self;
 
 		if (!bridge || !pci_is_pcie(bridge) ||
-		    bridge->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE)
+		    pci_pcie_type(bridge) == PCI_EXP_TYPE_PCI_BRIDGE)
 			return 0;
 
-		if (bridge->pcie_type == PCI_EXP_TYPE_ROOT_PORT) {
+		if (pci_pcie_type(bridge) == PCI_EXP_TYPE_ROOT_PORT) {
 			for (i = 0; i < atsru->devices_cnt; i++)
 				if (atsru->devices[i] == bridge)
 					return 1;
@@ -4124,8 +4125,13 @@ static int intel_iommu_add_device(struct device *dev)
 	} else
 		dma_pdev = pci_dev_get(pdev);
 
+	/* Account for quirked devices */
 	swap_pci_ref(&dma_pdev, pci_get_dma_source(dma_pdev));
 
+	/*
+	 * If it's a multifunction device that does not support our
+	 * required ACS flags, add to the same group as function 0.
+	 */
 	if (dma_pdev->multifunction &&
 	    !pci_acs_enabled(dma_pdev, REQ_ACS_FLAGS))
 		swap_pci_ref(&dma_pdev,
@@ -4133,14 +4139,28 @@ static int intel_iommu_add_device(struct device *dev)
 					  PCI_DEVFN(PCI_SLOT(dma_pdev->devfn),
 					  0)));
 
+	/*
+	 * Devices on the root bus go through the iommu.  If that's not us,
+	 * find the next upstream device and test ACS up to the root bus.
+	 * Finding the next device may require skipping virtual buses.
+	 */
 	while (!pci_is_root_bus(dma_pdev->bus)) {
-		if (pci_acs_path_enabled(dma_pdev->bus->self,
-					 NULL, REQ_ACS_FLAGS))
+		struct pci_bus *bus = dma_pdev->bus;
+
+		while (!bus->self) {
+			if (!pci_is_root_bus(bus))
+				bus = bus->parent;
+			else
+				goto root_bus;
+		}
+
+		if (pci_acs_path_enabled(bus->self, NULL, REQ_ACS_FLAGS))
 			break;
 
-		swap_pci_ref(&dma_pdev, pci_dev_get(dma_pdev->bus->self));
+		swap_pci_ref(&dma_pdev, pci_dev_get(bus->self));
 	}
 
+root_bus:
 	group = iommu_group_get(&dma_pdev->dev);
 	pci_dev_put(dma_pdev);
 	if (!group) {
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index e0b18f3ae9a..af8904de1d4 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -736,6 +736,7 @@ int __init parse_ioapics_under_ir(void)
 {
 	struct dmar_drhd_unit *drhd;
 	int ir_supported = 0;
+	int ioapic_idx;
 
 	for_each_drhd_unit(drhd) {
 		struct intel_iommu *iommu = drhd->iommu;
@@ -748,13 +749,20 @@ int __init parse_ioapics_under_ir(void)
 		}
 	}
 
-	if (ir_supported && ir_ioapic_num != nr_ioapics) {
-		printk(KERN_WARNING
-		       "Not all IO-APIC's listed under remapping hardware\n");
-		return -1;
+	if (!ir_supported)
+		return 0;
+
+	for (ioapic_idx = 0; ioapic_idx < nr_ioapics; ioapic_idx++) {
+		int ioapic_id = mpc_ioapic_id(ioapic_idx);
+		if (!map_ioapic_to_ir(ioapic_id)) {
+			pr_err(FW_BUG "ioapic %d has no mapping iommu, "
+			       "interrupt remapping will be disabled\n",
+			       ioapic_id);
+			return -1;
+		}
 	}
 
-	return ir_supported;
+	return 1;
 }
 
 int __init ir_dev_scope_init(void)
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 4ba325ab626..2a4bb36bc68 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -799,14 +799,14 @@ static void smmu_iommu_detach_dev(struct iommu_domain *domain,
 			goto out;
 		}
 	}
-	dev_err(smmu->dev, "Couldn't find %s\n", dev_name(c->dev));
+	dev_err(smmu->dev, "Couldn't find %s\n", dev_name(dev));
 out:
 	spin_unlock(&as->client_lock);
 }
 
 static int smmu_iommu_domain_init(struct iommu_domain *domain)
 {
-	int i, err = -ENODEV;
+	int i, err = -EAGAIN;
 	unsigned long flags;
 	struct smmu_as *as;
 	struct smmu_device *smmu = smmu_handle;
@@ -814,11 +814,14 @@ static int smmu_iommu_domain_init(struct iommu_domain *domain)
 	/* Look for a free AS with lock held */
 	for  (i = 0; i < smmu->num_as; i++) {
 		as = &smmu->as[i];
-		if (!as->pdir_page) {
-			err = alloc_pdir(as);
-			if (!err)
-				goto found;
-		}
+
+		if (as->pdir_page)
+			continue;
+
+		err = alloc_pdir(as);
+		if (!err)
+			goto found;
+
 		if (err != -EAGAIN)
 			break;
 	}
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
new file mode 100644
index 00000000000..1bb8bf6d7fd
--- /dev/null
+++ b/drivers/irqchip/Kconfig
@@ -0,0 +1 @@
+# empty
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
new file mode 100644
index 00000000000..054321db435
--- /dev/null
+++ b/drivers/irqchip/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c
new file mode 100644
index 00000000000..dc670ccc697
--- /dev/null
+++ b/drivers/irqchip/irq-bcm2835.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright 2010 Broadcom
+ * Copyright 2012 Simon Arlott, Chris Boot, Stephen Warren
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Quirk 1: Shortcut interrupts don't set the bank 1/2 register pending bits
+ *
+ * If an interrupt fires on bank 1 that isn't in the shortcuts list, bit 8
+ * on bank 0 is set to signify that an interrupt in bank 1 has fired, and
+ * to look in the bank 1 status register for more information.
+ *
+ * If an interrupt fires on bank 1 that _is_ in the shortcuts list, its
+ * shortcut bit in bank 0 is set as well as its interrupt bit in the bank 1
+ * status register, but bank 0 bit 8 is _not_ set.
+ *
+ * Quirk 2: You can't mask the register 1/2 pending interrupts
+ *
+ * In a proper cascaded interrupt controller, the interrupt lines with
+ * cascaded interrupt controllers on them are just normal interrupt lines.
+ * You can mask the interrupts and get on with things. With this controller
+ * you can't do that.
+ *
+ * Quirk 3: The shortcut interrupts can't be (un)masked in bank 0
+ *
+ * Those interrupts that have shortcuts can only be masked/unmasked in
+ * their respective banks' enable/disable registers. Doing so in the bank 0
+ * enable/disable registers has no effect.
+ *
+ * The FIQ control register:
+ *  Bits 0-6: IRQ (index in order of interrupts from banks 1, 2, then 0)
+ *  Bit    7: Enable FIQ generation
+ *  Bits  8+: Unused
+ *
+ * An interrupt must be disabled before configuring it for FIQ generation
+ * otherwise both handlers will fire at the same time!
+ */
+
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip/bcm2835.h>
+
+#include <asm/exception.h>
+
+/* Put the bank and irq (32 bits) into the hwirq */
+#define MAKE_HWIRQ(b, n)	((b << 5) | (n))
+#define HWIRQ_BANK(i)		(i >> 5)
+#define HWIRQ_BIT(i)		BIT(i & 0x1f)
+
+#define NR_IRQS_BANK0		8
+#define BANK0_HWIRQ_MASK	0xff
+/* Shortcuts can't be disabled so any unknown new ones need to be masked */
+#define SHORTCUT1_MASK		0x00007c00
+#define SHORTCUT2_MASK		0x001f8000
+#define SHORTCUT_SHIFT		10
+#define BANK1_HWIRQ		BIT(8)
+#define BANK2_HWIRQ		BIT(9)
+#define BANK0_VALID_MASK	(BANK0_HWIRQ_MASK | BANK1_HWIRQ | BANK2_HWIRQ \
+					| SHORTCUT1_MASK | SHORTCUT2_MASK)
+
+#define REG_FIQ_CONTROL		0x0c
+
+#define NR_BANKS		3
+#define IRQS_PER_BANK		32
+
+static int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+static int reg_enable[] __initconst = { 0x18, 0x10, 0x14 };
+static int reg_disable[] __initconst = { 0x24, 0x1c, 0x20 };
+static int bank_irqs[] __initconst = { 8, 32, 32 };
+
+static const int shortcuts[] = {
+	7, 9, 10, 18, 19,		/* Bank 1 */
+	21, 22, 23, 24, 25, 30		/* Bank 2 */
+};
+
+struct armctrl_ic {
+	void __iomem *base;
+	void __iomem *pending[NR_BANKS];
+	void __iomem *enable[NR_BANKS];
+	void __iomem *disable[NR_BANKS];
+	struct irq_domain *domain;
+};
+
+static struct armctrl_ic intc __read_mostly;
+
+static void armctrl_mask_irq(struct irq_data *d)
+{
+	writel_relaxed(HWIRQ_BIT(d->hwirq), intc.disable[HWIRQ_BANK(d->hwirq)]);
+}
+
+static void armctrl_unmask_irq(struct irq_data *d)
+{
+	writel_relaxed(HWIRQ_BIT(d->hwirq), intc.enable[HWIRQ_BANK(d->hwirq)]);
+}
+
+static struct irq_chip armctrl_chip = {
+	.name = "ARMCTRL-level",
+	.irq_mask = armctrl_mask_irq,
+	.irq_unmask = armctrl_unmask_irq
+};
+
+static int armctrl_xlate(struct irq_domain *d, struct device_node *ctrlr,
+	const u32 *intspec, unsigned int intsize,
+	unsigned long *out_hwirq, unsigned int *out_type)
+{
+	if (WARN_ON(intsize != 2))
+		return -EINVAL;
+
+	if (WARN_ON(intspec[0] >= NR_BANKS))
+		return -EINVAL;
+
+	if (WARN_ON(intspec[1] >= IRQS_PER_BANK))
+		return -EINVAL;
+
+	if (WARN_ON(intspec[0] == 0 && intspec[1] >= NR_IRQS_BANK0))
+		return -EINVAL;
+
+	*out_hwirq = MAKE_HWIRQ(intspec[0], intspec[1]);
+	*out_type = IRQ_TYPE_NONE;
+	return 0;
+}
+
+static struct irq_domain_ops armctrl_ops = {
+	.xlate = armctrl_xlate
+};
+
+static int __init armctrl_of_init(struct device_node *node,
+	struct device_node *parent)
+{
+	void __iomem *base;
+	int irq, b, i;
+
+	base = of_iomap(node, 0);
+	if (!base)
+		panic("%s: unable to map IC registers\n",
+			node->full_name);
+
+	intc.domain = irq_domain_add_linear(node, MAKE_HWIRQ(NR_BANKS, 0),
+			&armctrl_ops, NULL);
+	if (!intc.domain)
+		panic("%s: unable to create IRQ domain\n", node->full_name);
+
+	for (b = 0; b < NR_BANKS; b++) {
+		intc.pending[b] = base + reg_pending[b];
+		intc.enable[b] = base + reg_enable[b];
+		intc.disable[b] = base + reg_disable[b];
+
+		for (i = 0; i < bank_irqs[b]; i++) {
+			irq = irq_create_mapping(intc.domain, MAKE_HWIRQ(b, i));
+			BUG_ON(irq <= 0);
+			irq_set_chip_and_handler(irq, &armctrl_chip,
+				handle_level_irq);
+			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+		}
+	}
+	return 0;
+}
+
+static struct of_device_id irq_of_match[] __initconst = {
+	{ .compatible = "brcm,bcm2835-armctrl-ic", .data = armctrl_of_init }
+};
+
+void __init bcm2835_init_irq(void)
+{
+	of_irq_init(irq_of_match);
+}
+
+/*
+ * Handle each interrupt across the entire interrupt controller.  This reads the
+ * status register before handling each interrupt, which is necessary given that
+ * handle_IRQ may briefly re-enable interrupts for soft IRQ handling.
+ */
+
+static void armctrl_handle_bank(int bank, struct pt_regs *regs)
+{
+	u32 stat, irq;
+
+	while ((stat = readl_relaxed(intc.pending[bank]))) {
+		irq = MAKE_HWIRQ(bank, ffs(stat) - 1);
+		handle_IRQ(irq_linear_revmap(intc.domain, irq), regs);
+	}
+}
+
+static void armctrl_handle_shortcut(int bank, struct pt_regs *regs,
+	u32 stat)
+{
+	u32 irq = MAKE_HWIRQ(bank, shortcuts[ffs(stat >> SHORTCUT_SHIFT) - 1]);
+	handle_IRQ(irq_linear_revmap(intc.domain, irq), regs);
+}
+
+asmlinkage void __exception_irq_entry bcm2835_handle_irq(
+	struct pt_regs *regs)
+{
+	u32 stat, irq;
+
+	while ((stat = readl_relaxed(intc.pending[0]) & BANK0_VALID_MASK)) {
+		if (stat & BANK0_HWIRQ_MASK) {
+			irq = MAKE_HWIRQ(0, ffs(stat & BANK0_HWIRQ_MASK) - 1);
+			handle_IRQ(irq_linear_revmap(intc.domain, irq), regs);
+		} else if (stat & SHORTCUT1_MASK) {
+			armctrl_handle_shortcut(1, regs, stat & SHORTCUT1_MASK);
+		} else if (stat & SHORTCUT2_MASK) {
+			armctrl_handle_shortcut(2, regs, stat & SHORTCUT2_MASK);
+		} else if (stat & BANK1_HWIRQ) {
+			armctrl_handle_bank(1, regs);
+		} else if (stat & BANK2_HWIRQ) {
+			armctrl_handle_bank(2, regs);
+		} else {
+			BUG();
+		}
+	}
+}
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 38c4bd87b2c..c679867c2cc 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -234,7 +234,8 @@ static struct capiminor *capiminor_alloc(struct capi20_appl *ap, u32 ncci)
 
 	mp->minor = minor;
 
-	dev = tty_register_device(capinc_tty_driver, minor, NULL);
+	dev = tty_port_register_device(&mp->port, capinc_tty_driver, minor,
+			NULL);
 	if (IS_ERR(dev))
 		goto err_out2;
 
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index aa41485bc59..30a6b174fbb 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -1123,7 +1123,6 @@ struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
 	return drv;
 
 error:
-	kfree(drv->cs);
 	kfree(drv);
 	return NULL;
 }
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index a6d9fd2858f..67abf3ff45e 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -446,8 +446,8 @@ static void if_set_termios(struct tty_struct *tty, struct ktermios *old)
 		goto out;
 	}
 
-	iflag = tty->termios->c_iflag;
-	cflag = tty->termios->c_cflag;
+	iflag = tty->termios.c_iflag;
+	cflag = tty->termios.c_cflag;
 	old_cflag = old ? old->c_cflag : cflag;
 	gig_dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x",
 		cs->minor_index, iflag, cflag, old_cflag);
@@ -524,7 +524,8 @@ void gigaset_if_init(struct cardstate *cs)
 	tasklet_init(&cs->if_wake_tasklet, if_wake, (unsigned long) cs);
 
 	mutex_lock(&cs->mutex);
-	cs->tty_dev = tty_register_device(drv->tty, cs->minor_index, NULL);
+	cs->tty_dev = tty_port_register_device(&cs->port, drv->tty,
+			cs->minor_index, NULL);
 
 	if (!IS_ERR(cs->tty_dev))
 		dev_set_drvdata(cs->tty_dev, cs);
diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c
index fa6ca473372..dceaec821b0 100644
--- a/drivers/isdn/hardware/mISDN/avmfritz.c
+++ b/drivers/isdn/hardware/mISDN/avmfritz.c
@@ -857,8 +857,9 @@ avm_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
 	switch (cmd) {
 	case CLOSE_CHANNEL:
 		test_and_clear_bit(FLG_OPEN, &bch->Flags);
+		cancel_work_sync(&bch->workq);
 		spin_lock_irqsave(&fc->lock, flags);
-		mISDN_freebchannel(bch);
+		mISDN_clear_bchannel(bch);
 		modehdlc(bch, ISDN_P_NONE);
 		spin_unlock_irqrestore(&fc->lock, flags);
 		ch->protocol = ISDN_P_NONE;
diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index 5e402cf2e79..f02794203bb 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -5059,6 +5059,7 @@ hfcmulti_init(struct hm_map *m, struct pci_dev *pdev,
 				printk(KERN_INFO
 				       "HFC-E1 #%d has overlapping B-channels on fragment #%d\n",
 				       E1_cnt + 1, pt);
+				kfree(hc);
 				return -EINVAL;
 			}
 			maskcheck |= hc->bmask[pt];
@@ -5086,6 +5087,7 @@ hfcmulti_init(struct hm_map *m, struct pci_dev *pdev,
 	if ((poll >> 1) > sizeof(hc->silence_data)) {
 		printk(KERN_ERR "HFCMULTI error: silence_data too small, "
 		       "please fix\n");
+		kfree(hc);
 		return -EINVAL;
 	}
 	for (i = 0; i < (poll >> 1); i++)
diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c
index 752e0825591..ccd7d851be2 100644
--- a/drivers/isdn/hardware/mISDN/mISDNipac.c
+++ b/drivers/isdn/hardware/mISDN/mISDNipac.c
@@ -1406,8 +1406,9 @@ hscx_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
 	switch (cmd) {
 	case CLOSE_CHANNEL:
 		test_and_clear_bit(FLG_OPEN, &bch->Flags);
+		cancel_work_sync(&bch->workq);
 		spin_lock_irqsave(hx->ip->hwlock, flags);
-		mISDN_freebchannel(bch);
+		mISDN_clear_bchannel(bch);
 		hscx_mode(hx, ISDN_P_NONE);
 		spin_unlock_irqrestore(hx->ip->hwlock, flags);
 		ch->protocol = ISDN_P_NONE;
diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c
index be5973ded6d..182ecf0626c 100644
--- a/drivers/isdn/hardware/mISDN/mISDNisar.c
+++ b/drivers/isdn/hardware/mISDN/mISDNisar.c
@@ -1588,8 +1588,9 @@ isar_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
 	switch (cmd) {
 	case CLOSE_CHANNEL:
 		test_and_clear_bit(FLG_OPEN, &bch->Flags);
+		cancel_work_sync(&bch->workq);
 		spin_lock_irqsave(ich->is->hwlock, flags);
-		mISDN_freebchannel(bch);
+		mISDN_clear_bchannel(bch);
 		modeisar(ich, ISDN_P_NONE);
 		spin_unlock_irqrestore(ich->is->hwlock, flags);
 		ch->protocol = ISDN_P_NONE;
diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c
index c3e3e768627..9bcade59eb7 100644
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@@ -812,8 +812,9 @@ nj_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
 	switch (cmd) {
 	case CLOSE_CHANNEL:
 		test_and_clear_bit(FLG_OPEN, &bch->Flags);
+		cancel_work_sync(&bch->workq);
 		spin_lock_irqsave(&card->lock, flags);
-		mISDN_freebchannel(bch);
+		mISDN_clear_bchannel(bch);
 		mode_tiger(bc, ISDN_P_NONE);
 		spin_unlock_irqrestore(&card->lock, flags);
 		ch->protocol = ISDN_P_NONE;
diff --git a/drivers/isdn/hardware/mISDN/w6692.c b/drivers/isdn/hardware/mISDN/w6692.c
index 26a86b84609..335fe645500 100644
--- a/drivers/isdn/hardware/mISDN/w6692.c
+++ b/drivers/isdn/hardware/mISDN/w6692.c
@@ -1054,8 +1054,9 @@ w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
 	switch (cmd) {
 	case CLOSE_CHANNEL:
 		test_and_clear_bit(FLG_OPEN, &bch->Flags);
+		cancel_work_sync(&bch->workq);
 		spin_lock_irqsave(&card->lock, flags);
-		mISDN_freebchannel(bch);
+		mISDN_clear_bchannel(bch);
 		w6692_mode(bc, ISDN_P_NONE);
 		spin_unlock_irqrestore(&card->lock, flags);
 		ch->protocol = ISDN_P_NONE;
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 7bc50670d7d..b817809f763 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1009,15 +1009,15 @@ isdn_tty_change_speed(modem_info *info)
 		quot;
 	int i;
 
-	if (!port->tty || !port->tty->termios)
+	if (!port->tty)
 		return;
-	cflag = port->tty->termios->c_cflag;
+	cflag = port->tty->termios.c_cflag;
 
 	quot = i = cflag & CBAUD;
 	if (i & CBAUDEX) {
 		i &= ~CBAUDEX;
 		if (i < 1 || i > 2)
-			port->tty->termios->c_cflag &= ~CBAUDEX;
+			port->tty->termios.c_cflag &= ~CBAUDEX;
 		else
 			i += 15;
 	}
@@ -1097,7 +1097,7 @@ isdn_tty_shutdown(modem_info *info)
 #endif
 	isdn_unlock_drivers();
 	info->msr &= ~UART_MSR_RI;
-	if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
+	if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) {
 		info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS);
 		if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) {
 			isdn_tty_modem_reset_regs(info, 0);
@@ -1469,13 +1469,13 @@ isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	if (!old_termios)
 		isdn_tty_change_speed(info);
 	else {
-		if (tty->termios->c_cflag == old_termios->c_cflag &&
-		    tty->termios->c_ispeed == old_termios->c_ispeed &&
-		    tty->termios->c_ospeed == old_termios->c_ospeed)
+		if (tty->termios.c_cflag == old_termios->c_cflag &&
+		    tty->termios.c_ispeed == old_termios->c_ispeed &&
+		    tty->termios.c_ospeed == old_termios->c_ospeed)
 			return;
 		isdn_tty_change_speed(info);
 		if ((old_termios->c_cflag & CRTSCTS) &&
-		    !(tty->termios->c_cflag & CRTSCTS))
+		    !(tty->termios.c_cflag & CRTSCTS))
 			tty->hw_stopped = 0;
 	}
 }
@@ -1486,6 +1486,18 @@ isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
  * ------------------------------------------------------------
  */
 
+static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	modem_info *info = &dev->mdm.info[tty->index];
+
+	if (isdn_tty_paranoia_check(info, tty->name, __func__))
+		return -ENODEV;
+
+	tty->driver_data = info;
+
+	return tty_port_install(&info->port, driver, tty);
+}
+
 /*
  * This routine is called whenever a serial port is opened.  It
  * enables interrupts for a serial port, linking in its async structure into
@@ -1495,22 +1507,16 @@ isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 static int
 isdn_tty_open(struct tty_struct *tty, struct file *filp)
 {
-	struct tty_port *port;
-	modem_info *info;
+	modem_info *info = tty->driver_data;
+	struct tty_port *port = &info->port;
 	int retval;
 
-	info = &dev->mdm.info[tty->index];
-	if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_open"))
-		return -ENODEV;
-	port = &info->port;
 #ifdef ISDN_DEBUG_MODEM_OPEN
 	printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
 	       port->count);
 #endif
 	port->count++;
-	tty->driver_data = info;
 	port->tty = tty;
-	tty->port = port;
 	/*
 	 * Start up serial port
 	 */
@@ -1738,6 +1744,7 @@ modem_write_profile(atemu *m)
 }
 
 static const struct tty_operations modem_ops = {
+	.install = isdn_tty_install,
 	.open = isdn_tty_open,
 	.close = isdn_tty_close,
 	.write = isdn_tty_write,
@@ -1782,7 +1789,7 @@ isdn_tty_modem_init(void)
 	m->tty_modem->subtype = SERIAL_TYPE_NORMAL;
 	m->tty_modem->init_termios = tty_std_termios;
 	m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+	m->tty_modem->flags = TTY_DRIVER_REAL_RAW;
 	m->tty_modem->driver_name = "isdn_tty";
 	tty_set_operations(m->tty_modem, &modem_ops);
 	retval = tty_register_driver(m->tty_modem);
diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c
index 5405ec644db..baf2686aa8e 100644
--- a/drivers/isdn/isdnloop/isdnloop.c
+++ b/drivers/isdn/isdnloop/isdnloop.c
@@ -16,7 +16,6 @@
 #include <linux/sched.h>
 #include "isdnloop.h"
 
-static char *revision = "$Revision: 1.11.6.7 $";
 static char *isdnloop_id = "loop0";
 
 MODULE_DESCRIPTION("ISDN4Linux: Pseudo Driver that simulates an ISDN card");
@@ -1494,17 +1493,6 @@ isdnloop_addcard(char *id1)
 static int __init
 isdnloop_init(void)
 {
-	char *p;
-	char rev[10];
-
-	if ((p = strchr(revision, ':'))) {
-		strcpy(rev, p + 1);
-		p = strchr(rev, '$');
-		*p = 0;
-	} else
-		strcpy(rev, " ??? ");
-	printk(KERN_NOTICE "isdnloop-ISDN-driver Rev%s\n", rev);
-
 	if (isdnloop_id)
 		return (isdnloop_addcard(isdnloop_id));
 
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c
index ef34fd40867..84b4b0f7eb9 100644
--- a/drivers/isdn/mISDN/hwchannel.c
+++ b/drivers/isdn/mISDN/hwchannel.c
@@ -116,7 +116,7 @@ mISDN_freedchannel(struct dchannel *ch)
 	}
 	skb_queue_purge(&ch->squeue);
 	skb_queue_purge(&ch->rqueue);
-	flush_work_sync(&ch->workq);
+	flush_work(&ch->workq);
 	return 0;
 }
 EXPORT_SYMBOL(mISDN_freedchannel);
@@ -148,17 +148,16 @@ mISDN_clear_bchannel(struct bchannel *ch)
 	ch->next_minlen = ch->init_minlen;
 	ch->maxlen = ch->init_maxlen;
 	ch->next_maxlen = ch->init_maxlen;
+	skb_queue_purge(&ch->rqueue);
+	ch->rcount = 0;
 }
 EXPORT_SYMBOL(mISDN_clear_bchannel);
 
-int
+void
 mISDN_freebchannel(struct bchannel *ch)
 {
+	cancel_work_sync(&ch->workq);
 	mISDN_clear_bchannel(ch);
-	skb_queue_purge(&ch->rqueue);
-	ch->rcount = 0;
-	flush_work_sync(&ch->workq);
-	return 0;
 }
 EXPORT_SYMBOL(mISDN_freebchannel);
 
diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c
index 0dc8abca140..949cabb88f1 100644
--- a/drivers/isdn/mISDN/layer2.c
+++ b/drivers/isdn/mISDN/layer2.c
@@ -2222,7 +2222,7 @@ create_l2(struct mISDNchannel *ch, u_int protocol, u_long options, int tei,
 	InitWin(l2);
 	l2->l2m.fsm = &l2fsm;
 	if (test_bit(FLG_LAPB, &l2->flag) ||
-	    test_bit(FLG_PTP, &l2->flag) ||
+	    test_bit(FLG_FIXED_TEI, &l2->flag) ||
 	    test_bit(FLG_LAPD_NET, &l2->flag))
 		l2->l2m.state = ST_L2_4;
 	else
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index c96bbaadeeb..16578d3b52b 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -506,6 +506,16 @@ config LEDS_TRIGGER_BACKLIGHT
 
 	  If unsure, say N.
 
+config LEDS_TRIGGER_CPU
+	bool "LED CPU Trigger"
+	depends on LEDS_TRIGGERS
+	help
+	  This allows LEDs to be controlled by active CPUs. This shows
+	  the active CPUs across an array of LEDs so you can see which
+	  CPUs are active on the system at any given moment.
+
+	  If unsure, say N.
+
 config LEDS_TRIGGER_GPIO
 	tristate "LED GPIO Trigger"
 	depends on LEDS_TRIGGERS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index a4429a9217b..a9b627c4f8b 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -61,5 +61,6 @@ obj-$(CONFIG_LEDS_TRIGGER_IDE_DISK)	+= ledtrig-ide-disk.o
 obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT)	+= ledtrig-heartbeat.o
 obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT)	+= ledtrig-backlight.o
 obj-$(CONFIG_LEDS_TRIGGER_GPIO)		+= ledtrig-gpio.o
+obj-$(CONFIG_LEDS_TRIGGER_CPU)		+= ledtrig-cpu.o
 obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON)	+= ledtrig-default-on.o
 obj-$(CONFIG_LEDS_TRIGGER_TRANSIENT)	+= ledtrig-transient.o
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 6157cbbf411..363975b3c92 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -224,7 +224,7 @@ void led_trigger_event(struct led_trigger *trig,
 		struct led_classdev *led_cdev;
 
 		led_cdev = list_entry(entry, struct led_classdev, trig_list);
-		led_set_brightness(led_cdev, brightness);
+		__led_set_brightness(led_cdev, brightness);
 	}
 	read_unlock(&trig->leddev_list_lock);
 }
diff --git a/drivers/leds/leds-lm3533.c b/drivers/leds/leds-lm3533.c
index f56b6e7ffda..f6837b99908 100644
--- a/drivers/leds/leds-lm3533.c
+++ b/drivers/leds/leds-lm3533.c
@@ -737,7 +737,7 @@ err_sysfs_remove:
 	sysfs_remove_group(&led->cdev.dev->kobj, &lm3533_led_attribute_group);
 err_unregister:
 	led_classdev_unregister(&led->cdev);
-	flush_work_sync(&led->work);
+	flush_work(&led->work);
 
 	return ret;
 }
@@ -751,7 +751,7 @@ static int __devexit lm3533_led_remove(struct platform_device *pdev)
 	lm3533_ctrlbank_disable(&led->cb);
 	sysfs_remove_group(&led->cdev.dev->kobj, &lm3533_led_attribute_group);
 	led_classdev_unregister(&led->cdev);
-	flush_work_sync(&led->work);
+	flush_work(&led->work);
 
 	return 0;
 }
@@ -765,7 +765,7 @@ static void lm3533_led_shutdown(struct platform_device *pdev)
 
 	lm3533_ctrlbank_disable(&led->cb);
 	lm3533_led_set(&led->cdev, LED_OFF);		/* disable blink */
-	flush_work_sync(&led->work);
+	flush_work(&led->work);
 }
 
 static struct platform_driver lm3533_led_driver = {
diff --git a/drivers/leds/leds-lp8788.c b/drivers/leds/leds-lp8788.c
index 53bd136f1ef..64009a17665 100644
--- a/drivers/leds/leds-lp8788.c
+++ b/drivers/leds/leds-lp8788.c
@@ -63,7 +63,7 @@ static int lp8788_led_init_device(struct lp8788_led *led,
 	/* scale configuration */
 	addr = LP8788_ISINK_CTRL;
 	mask = 1 << (cfg->num + LP8788_ISINK_SCALE_OFFSET);
-	val = cfg->scale << cfg->num;
+	val = cfg->scale << (cfg->num + LP8788_ISINK_SCALE_OFFSET);
 	ret = lp8788_update_bits(led->lp, addr, mask, val);
 	if (ret)
 		return ret;
@@ -172,7 +172,7 @@ static int __devexit lp8788_led_remove(struct platform_device *pdev)
 	struct lp8788_led *led = platform_get_drvdata(pdev);
 
 	led_classdev_unregister(&led->led_dev);
-	flush_work_sync(&led->work);
+	flush_work(&led->work);
 
 	return 0;
 }
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index e37618e363c..461bbf9b33f 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -28,7 +28,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
-#include <mach/leds-netxbig.h>
+#include <linux/platform_data/leds-kirkwood-netxbig.h>
 
 /*
  * GPIO extension bus.
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 10528dafb04..d176ec83f5d 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -29,7 +29,7 @@
 #include <linux/gpio.h>
 #include <linux/leds.h>
 #include <linux/module.h>
-#include <mach/leds-ns2.h>
+#include <linux/platform_data/leds-kirkwood-ns2.h>
 
 /*
  * The Network Space v2 dual-GPIO LED is wired to a CPLD and can blink in
diff --git a/drivers/leds/leds-renesas-tpu.c b/drivers/leds/leds-renesas-tpu.c
index 9ee12c28059..771ea067e68 100644
--- a/drivers/leds/leds-renesas-tpu.c
+++ b/drivers/leds/leds-renesas-tpu.c
@@ -247,7 +247,7 @@ static int __devinit r_tpu_probe(struct platform_device *pdev)
 
 	if (!cfg) {
 		dev_err(&pdev->dev, "missing platform data\n");
-		goto err0;
+		return -ENODEV;
 	}
 
 	p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
diff --git a/drivers/leds/leds-s3c24xx.c b/drivers/leds/leds-s3c24xx.c
index 942f0ea1817..e1a0df63a37 100644
--- a/drivers/leds/leds-s3c24xx.c
+++ b/drivers/leds/leds-s3c24xx.c
@@ -21,7 +21,7 @@
 
 #include <mach/hardware.h>
 #include <mach/regs-gpio.h>
-#include <mach/leds-gpio.h>
+#include <linux/platform_data/leds-s3c24xx.h>
 
 /* our context */
 
diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c
index 918d4baff1c..4c62113f7a7 100644
--- a/drivers/leds/leds-wm8350.c
+++ b/drivers/leds/leds-wm8350.c
@@ -275,7 +275,7 @@ static int wm8350_led_remove(struct platform_device *pdev)
 	struct wm8350_led *led = platform_get_drvdata(pdev);
 
 	led_classdev_unregister(&led->cdev);
-	flush_work_sync(&led->work);
+	flush_work(&led->work);
 	wm8350_led_disable(led);
 	regulator_put(led->dcdc);
 	regulator_put(led->isink);
diff --git a/drivers/leds/ledtrig-cpu.c b/drivers/leds/ledtrig-cpu.c
new file mode 100644
index 00000000000..b312056da14
--- /dev/null
+++ b/drivers/leds/ledtrig-cpu.c
@@ -0,0 +1,163 @@
+/*
+ * ledtrig-cpu.c - LED trigger based on CPU activity
+ *
+ * This LED trigger will be registered for each possible CPU and named as
+ * cpu0, cpu1, cpu2, cpu3, etc.
+ *
+ * It can be bound to any LED just like other triggers using either a
+ * board file or via sysfs interface.
+ *
+ * An API named ledtrig_cpu is exported for any user, who want to add CPU
+ * activity indication in their code
+ *
+ * Copyright 2011 Linus Walleij <linus.walleij@linaro.org>
+ * Copyright 2011 - 2012 Bryan Wu <bryan.wu@canonical.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/percpu.h>
+#include <linux/syscore_ops.h>
+#include <linux/rwsem.h>
+#include "leds.h"
+
+#define MAX_NAME_LEN	8
+
+struct led_trigger_cpu {
+	char name[MAX_NAME_LEN];
+	struct led_trigger *_trig;
+	struct mutex lock;
+	int lock_is_inited;
+};
+
+static DEFINE_PER_CPU(struct led_trigger_cpu, cpu_trig);
+
+/**
+ * ledtrig_cpu - emit a CPU event as a trigger
+ * @evt: CPU event to be emitted
+ *
+ * Emit a CPU event on a CPU core, which will trigger a
+ * binded LED to turn on or turn off.
+ */
+void ledtrig_cpu(enum cpu_led_event ledevt)
+{
+	struct led_trigger_cpu *trig = &__get_cpu_var(cpu_trig);
+
+	/* mutex lock should be initialized before calling mutex_call() */
+	if (!trig->lock_is_inited)
+		return;
+
+	mutex_lock(&trig->lock);
+
+	/* Locate the correct CPU LED */
+	switch (ledevt) {
+	case CPU_LED_IDLE_END:
+	case CPU_LED_START:
+		/* Will turn the LED on, max brightness */
+		led_trigger_event(trig->_trig, LED_FULL);
+		break;
+
+	case CPU_LED_IDLE_START:
+	case CPU_LED_STOP:
+	case CPU_LED_HALTED:
+		/* Will turn the LED off */
+		led_trigger_event(trig->_trig, LED_OFF);
+		break;
+
+	default:
+		/* Will leave the LED as it is */
+		break;
+	}
+
+	mutex_unlock(&trig->lock);
+}
+EXPORT_SYMBOL(ledtrig_cpu);
+
+static int ledtrig_cpu_syscore_suspend(void)
+{
+	ledtrig_cpu(CPU_LED_STOP);
+	return 0;
+}
+
+static void ledtrig_cpu_syscore_resume(void)
+{
+	ledtrig_cpu(CPU_LED_START);
+}
+
+static void ledtrig_cpu_syscore_shutdown(void)
+{
+	ledtrig_cpu(CPU_LED_HALTED);
+}
+
+static struct syscore_ops ledtrig_cpu_syscore_ops = {
+	.shutdown	= ledtrig_cpu_syscore_shutdown,
+	.suspend	= ledtrig_cpu_syscore_suspend,
+	.resume		= ledtrig_cpu_syscore_resume,
+};
+
+static int __init ledtrig_cpu_init(void)
+{
+	int cpu;
+
+	/* Supports up to 9999 cpu cores */
+	BUILD_BUG_ON(CONFIG_NR_CPUS > 9999);
+
+	/*
+	 * Registering CPU led trigger for each CPU core here
+	 * ignores CPU hotplug, but after this CPU hotplug works
+	 * fine with this trigger.
+	 */
+	for_each_possible_cpu(cpu) {
+		struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu);
+
+		mutex_init(&trig->lock);
+
+		snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu);
+
+		mutex_lock(&trig->lock);
+		led_trigger_register_simple(trig->name, &trig->_trig);
+		trig->lock_is_inited = 1;
+		mutex_unlock(&trig->lock);
+	}
+
+	register_syscore_ops(&ledtrig_cpu_syscore_ops);
+
+	pr_info("ledtrig-cpu: registered to indicate activity on CPUs\n");
+
+	return 0;
+}
+module_init(ledtrig_cpu_init);
+
+static void __exit ledtrig_cpu_exit(void)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu);
+
+		mutex_lock(&trig->lock);
+
+		led_trigger_unregister_simple(trig->_trig);
+		trig->_trig = NULL;
+		memset(trig->name, 0, MAX_NAME_LEN);
+		trig->lock_is_inited = 0;
+
+		mutex_unlock(&trig->lock);
+		mutex_destroy(&trig->lock);
+	}
+
+	unregister_syscore_ops(&ledtrig_cpu_syscore_ops);
+}
+module_exit(ledtrig_cpu_exit);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_AUTHOR("Bryan Wu <bryan.wu@canonical.com>");
+MODULE_DESCRIPTION("CPU LED trigger");
+MODULE_LICENSE("GPL");
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 39809035320..4af12e1844d 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -203,8 +203,8 @@ void lguest_arch_run_guest(struct lg_cpu *cpu)
 	 * we set it now, so we can trap and pass that trap to the Guest if it
 	 * uses the FPU.
 	 */
-	if (cpu->ts)
-		unlazy_fpu(current);
+	if (cpu->ts && user_has_fpu())
+		stts();
 
 	/*
 	 * SYSENTER is an optimized way of doing system calls.  We can't allow
@@ -234,6 +234,10 @@ void lguest_arch_run_guest(struct lg_cpu *cpu)
 	 if (boot_cpu_has(X86_FEATURE_SEP))
 		wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
 
+	/* Clear the host TS bit if it was set above. */
+	if (cpu->ts && user_has_fpu())
+		clts();
+
 	/*
 	 * If the Guest page faulted, then the cr2 register will tell us the
 	 * bad virtual address.  We have to grab this now, because once we
@@ -249,7 +253,7 @@ void lguest_arch_run_guest(struct lg_cpu *cpu)
 	 * a different CPU. So all the critical stuff should be done
 	 * before this.
 	 */
-	else if (cpu->regs->trapnum == 7)
+	else if (cpu->regs->trapnum == 7 && !user_has_fpu())
 		math_state_restore();
 }
 
diff --git a/drivers/macintosh/ams/ams-core.c b/drivers/macintosh/ams/ams-core.c
index 5c6a2d87656..36a4fdddd64 100644
--- a/drivers/macintosh/ams/ams-core.c
+++ b/drivers/macintosh/ams/ams-core.c
@@ -226,7 +226,7 @@ void ams_sensor_detach(void)
 	 * We do this after ams_info.exit(), because an interrupt might
 	 * have arrived before disabling them.
 	 */
-	flush_work_sync(&ams_info.worker);
+	flush_work(&ams_info.worker);
 
 	/* Remove device */
 	of_device_unregister(ams_info.of_dev);
diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index 831d7517c75..3f8d032f180 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -63,7 +63,7 @@ struct media_bay_info {
 	int				value_count;
 	int				timer;
 	struct macio_dev		*mdev;
-	struct mb_ops*			ops;
+	const struct mb_ops*		ops;
 	int				index;
 	int				cached_gpio;
 	int				sleeping;
@@ -669,7 +669,7 @@ static int media_bay_resume(struct macio_dev *mdev)
 
 /* Definitions of "ops" structures.
  */
-static struct mb_ops ohare_mb_ops = {
+static const struct mb_ops ohare_mb_ops = {
 	.name		= "Ohare",
 	.content	= ohare_mb_content,
 	.power		= ohare_mb_power,
@@ -678,7 +678,7 @@ static struct mb_ops ohare_mb_ops = {
 	.un_reset_ide	= ohare_mb_un_reset_ide,
 };
 
-static struct mb_ops heathrow_mb_ops = {
+static const struct mb_ops heathrow_mb_ops = {
 	.name		= "Heathrow",
 	.content	= heathrow_mb_content,
 	.power		= heathrow_mb_power,
@@ -687,7 +687,7 @@ static struct mb_ops heathrow_mb_ops = {
 	.un_reset_ide	= heathrow_mb_un_reset_ide,
 };
 
-static struct mb_ops keylargo_mb_ops = {
+static const struct mb_ops keylargo_mb_ops = {
 	.name		= "KeyLargo",
 	.init		= keylargo_mb_init,
 	.content	= keylargo_mb_content,
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index d8abb90a6c2..d778563a4ff 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -944,7 +944,7 @@ static void flush_multipath_work(struct multipath *m)
 	flush_workqueue(kmpath_handlerd);
 	multipath_wait_for_pg_init_completion(m);
 	flush_workqueue(kmultipathd);
-	flush_work_sync(&m->trigger_event);
+	flush_work(&m->trigger_event);
 }
 
 static void multipath_dtr(struct dm_target *ti)
@@ -1555,6 +1555,7 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
 			   unsigned long arg)
 {
 	struct multipath *m = ti->private;
+	struct pgpath *pgpath;
 	struct block_device *bdev;
 	fmode_t mode;
 	unsigned long flags;
@@ -1570,12 +1571,14 @@ again:
 	if (!m->current_pgpath)
 		__choose_pgpath(m, 0);
 
-	if (m->current_pgpath) {
-		bdev = m->current_pgpath->path.dev->bdev;
-		mode = m->current_pgpath->path.dev->mode;
+	pgpath = m->current_pgpath;
+
+	if (pgpath) {
+		bdev = pgpath->path.dev->bdev;
+		mode = pgpath->path.dev->mode;
 	}
 
-	if (m->queue_io)
+	if ((pgpath && m->queue_io) || (!pgpath && m->queue_if_no_path))
 		r = -EAGAIN;
 	else if (!bdev)
 		r = -EIO;
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index bc5ddba8045..fd61f98ee1f 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1146,7 +1146,7 @@ static void mirror_dtr(struct dm_target *ti)
 
 	del_timer_sync(&ms->timer);
 	flush_workqueue(ms->kmirrord_wq);
-	flush_work_sync(&ms->trigger_event);
+	flush_work(&ms->trigger_event);
 	dm_kcopyd_client_destroy(ms->kcopyd_client);
 	destroy_workqueue(ms->kmirrord_wq);
 	free_context(ms, ti, ms->nr_mirrors);
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index a087bf2a8d6..e2f87653974 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -199,7 +199,7 @@ static void stripe_dtr(struct dm_target *ti)
 	for (i = 0; i < sc->stripes; i++)
 		dm_put_device(ti, sc->stripe[i].dev);
 
-	flush_work_sync(&sc->trigger_event);
+	flush_work(&sc->trigger_event);
 	kfree(sc);
 }
 
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index f90069029aa..100368eb799 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1212,6 +1212,41 @@ struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector)
 	return &t->targets[(KEYS_PER_NODE * n) + k];
 }
 
+static int count_device(struct dm_target *ti, struct dm_dev *dev,
+			sector_t start, sector_t len, void *data)
+{
+	unsigned *num_devices = data;
+
+	(*num_devices)++;
+
+	return 0;
+}
+
+/*
+ * Check whether a table has no data devices attached using each
+ * target's iterate_devices method.
+ * Returns false if the result is unknown because a target doesn't
+ * support iterate_devices.
+ */
+bool dm_table_has_no_data_devices(struct dm_table *table)
+{
+	struct dm_target *uninitialized_var(ti);
+	unsigned i = 0, num_devices = 0;
+
+	while (i < dm_table_get_num_targets(table)) {
+		ti = dm_table_get_target(table, i++);
+
+		if (!ti->type->iterate_devices)
+			return false;
+
+		ti->type->iterate_devices(ti, count_device, &num_devices);
+		if (num_devices)
+			return false;
+	}
+
+	return true;
+}
+
 /*
  * Establish the new table's queue_limits and validate them.
  */
@@ -1354,17 +1389,25 @@ static int device_is_nonrot(struct dm_target *ti, struct dm_dev *dev,
 	return q && blk_queue_nonrot(q);
 }
 
-static bool dm_table_is_nonrot(struct dm_table *t)
+static int device_is_not_random(struct dm_target *ti, struct dm_dev *dev,
+			     sector_t start, sector_t len, void *data)
+{
+	struct request_queue *q = bdev_get_queue(dev->bdev);
+
+	return q && !blk_queue_add_random(q);
+}
+
+static bool dm_table_all_devices_attribute(struct dm_table *t,
+					   iterate_devices_callout_fn func)
 {
 	struct dm_target *ti;
 	unsigned i = 0;
 
-	/* Ensure that all underlying device are non-rotational. */
 	while (i < dm_table_get_num_targets(t)) {
 		ti = dm_table_get_target(t, i++);
 
 		if (!ti->type->iterate_devices ||
-		    !ti->type->iterate_devices(ti, device_is_nonrot, NULL))
+		    !ti->type->iterate_devices(ti, func, NULL))
 			return 0;
 	}
 
@@ -1396,7 +1439,8 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_discard_zeroes_data(t))
 		q->limits.discard_zeroes_data = 0;
 
-	if (dm_table_is_nonrot(t))
+	/* Ensure that all underlying devices are non-rotational. */
+	if (dm_table_all_devices_attribute(t, device_is_nonrot))
 		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
 	else
 		queue_flag_clear_unlocked(QUEUE_FLAG_NONROT, q);
@@ -1404,6 +1448,15 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	dm_table_set_integrity(t);
 
 	/*
+	 * Determine whether or not this queue's I/O timings contribute
+	 * to the entropy pool, Only request-based targets use this.
+	 * Clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not
+	 * have it set.
+	 */
+	if (blk_queue_add_random(q) && dm_table_all_devices_attribute(t, device_is_not_random))
+		queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q);
+
+	/*
 	 * QUEUE_FLAG_STACKABLE must be set after all queue settings are
 	 * visible to other CPUs because, once the flag is set, incoming bios
 	 * are processed by request-based dm, which refers to the queue
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index af1fc3b2c2a..c29410af1e2 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -509,9 +509,9 @@ enum pool_mode {
 struct pool_features {
 	enum pool_mode mode;
 
-	unsigned zero_new_blocks:1;
-	unsigned discard_enabled:1;
-	unsigned discard_passdown:1;
+	bool zero_new_blocks:1;
+	bool discard_enabled:1;
+	bool discard_passdown:1;
 };
 
 struct thin_c;
@@ -580,7 +580,8 @@ struct pool_c {
 	struct dm_target_callbacks callbacks;
 
 	dm_block_t low_water_blocks;
-	struct pool_features pf;
+	struct pool_features requested_pf; /* Features requested during table load */
+	struct pool_features adjusted_pf;  /* Features used after adjusting for constituent devices */
 };
 
 /*
@@ -1839,6 +1840,47 @@ static void __requeue_bios(struct pool *pool)
 /*----------------------------------------------------------------
  * Binding of control targets to a pool object
  *--------------------------------------------------------------*/
+static bool data_dev_supports_discard(struct pool_c *pt)
+{
+	struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);
+
+	return q && blk_queue_discard(q);
+}
+
+/*
+ * If discard_passdown was enabled verify that the data device
+ * supports discards.  Disable discard_passdown if not.
+ */
+static void disable_passdown_if_not_supported(struct pool_c *pt)
+{
+	struct pool *pool = pt->pool;
+	struct block_device *data_bdev = pt->data_dev->bdev;
+	struct queue_limits *data_limits = &bdev_get_queue(data_bdev)->limits;
+	sector_t block_size = pool->sectors_per_block << SECTOR_SHIFT;
+	const char *reason = NULL;
+	char buf[BDEVNAME_SIZE];
+
+	if (!pt->adjusted_pf.discard_passdown)
+		return;
+
+	if (!data_dev_supports_discard(pt))
+		reason = "discard unsupported";
+
+	else if (data_limits->max_discard_sectors < pool->sectors_per_block)
+		reason = "max discard sectors smaller than a block";
+
+	else if (data_limits->discard_granularity > block_size)
+		reason = "discard granularity larger than a block";
+
+	else if (block_size & (data_limits->discard_granularity - 1))
+		reason = "discard granularity not a factor of block size";
+
+	if (reason) {
+		DMWARN("Data device (%s) %s: Disabling discard passdown.", bdevname(data_bdev, buf), reason);
+		pt->adjusted_pf.discard_passdown = false;
+	}
+}
+
 static int bind_control_target(struct pool *pool, struct dm_target *ti)
 {
 	struct pool_c *pt = ti->private;
@@ -1847,31 +1889,16 @@ static int bind_control_target(struct pool *pool, struct dm_target *ti)
 	 * We want to make sure that degraded pools are never upgraded.
 	 */
 	enum pool_mode old_mode = pool->pf.mode;
-	enum pool_mode new_mode = pt->pf.mode;
+	enum pool_mode new_mode = pt->adjusted_pf.mode;
 
 	if (old_mode > new_mode)
 		new_mode = old_mode;
 
 	pool->ti = ti;
 	pool->low_water_blocks = pt->low_water_blocks;
-	pool->pf = pt->pf;
-	set_pool_mode(pool, new_mode);
+	pool->pf = pt->adjusted_pf;
 
-	/*
-	 * If discard_passdown was enabled verify that the data device
-	 * supports discards.  Disable discard_passdown if not; otherwise
-	 * -EOPNOTSUPP will be returned.
-	 */
-	/* FIXME: pull this out into a sep fn. */
-	if (pt->pf.discard_passdown) {
-		struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);
-		if (!q || !blk_queue_discard(q)) {
-			char buf[BDEVNAME_SIZE];
-			DMWARN("Discard unsupported by data device (%s): Disabling discard passdown.",
-			       bdevname(pt->data_dev->bdev, buf));
-			pool->pf.discard_passdown = 0;
-		}
-	}
+	set_pool_mode(pool, new_mode);
 
 	return 0;
 }
@@ -1889,9 +1916,9 @@ static void unbind_control_target(struct pool *pool, struct dm_target *ti)
 static void pool_features_init(struct pool_features *pf)
 {
 	pf->mode = PM_WRITE;
-	pf->zero_new_blocks = 1;
-	pf->discard_enabled = 1;
-	pf->discard_passdown = 1;
+	pf->zero_new_blocks = true;
+	pf->discard_enabled = true;
+	pf->discard_passdown = true;
 }
 
 static void __pool_destroy(struct pool *pool)
@@ -2119,13 +2146,13 @@ static int parse_pool_features(struct dm_arg_set *as, struct pool_features *pf,
 		argc--;
 
 		if (!strcasecmp(arg_name, "skip_block_zeroing"))
-			pf->zero_new_blocks = 0;
+			pf->zero_new_blocks = false;
 
 		else if (!strcasecmp(arg_name, "ignore_discard"))
-			pf->discard_enabled = 0;
+			pf->discard_enabled = false;
 
 		else if (!strcasecmp(arg_name, "no_discard_passdown"))
-			pf->discard_passdown = 0;
+			pf->discard_passdown = false;
 
 		else if (!strcasecmp(arg_name, "read_only"))
 			pf->mode = PM_READ_ONLY;
@@ -2259,8 +2286,9 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	pt->metadata_dev = metadata_dev;
 	pt->data_dev = data_dev;
 	pt->low_water_blocks = low_water_blocks;
-	pt->pf = pf;
+	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_requests = 1;
+
 	/*
 	 * Only need to enable discards if the pool should pass
 	 * them down to the data device.  The thin device's discard
@@ -2268,12 +2296,14 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	 */
 	if (pf.discard_enabled && pf.discard_passdown) {
 		ti->num_discard_requests = 1;
+
 		/*
 		 * Setting 'discards_supported' circumvents the normal
 		 * stacking of discard limits (this keeps the pool and
 		 * thin devices' discard limits consistent).
 		 */
 		ti->discards_supported = true;
+		ti->discard_zeroes_data_unsupported = true;
 	}
 	ti->private = pt;
 
@@ -2703,7 +2733,7 @@ static int pool_status(struct dm_target *ti, status_type_t type,
 		       format_dev_t(buf2, pt->data_dev->bdev->bd_dev),
 		       (unsigned long)pool->sectors_per_block,
 		       (unsigned long long)pt->low_water_blocks);
-		emit_flags(&pt->pf, result, sz, maxlen);
+		emit_flags(&pt->requested_pf, result, sz, maxlen);
 		break;
 	}
 
@@ -2732,20 +2762,21 @@ static int pool_merge(struct dm_target *ti, struct bvec_merge_data *bvm,
 	return min(max_size, q->merge_bvec_fn(q, bvm, biovec));
 }
 
-static void set_discard_limits(struct pool *pool, struct queue_limits *limits)
+static void set_discard_limits(struct pool_c *pt, struct queue_limits *limits)
 {
-	/*
-	 * FIXME: these limits may be incompatible with the pool's data device
-	 */
+	struct pool *pool = pt->pool;
+	struct queue_limits *data_limits;
+
 	limits->max_discard_sectors = pool->sectors_per_block;
 
 	/*
-	 * This is just a hint, and not enforced.  We have to cope with
-	 * bios that cover a block partially.  A discard that spans a block
-	 * boundary is not sent to this target.
+	 * discard_granularity is just a hint, and not enforced.
 	 */
-	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
-	limits->discard_zeroes_data = pool->pf.zero_new_blocks;
+	if (pt->adjusted_pf.discard_passdown) {
+		data_limits = &bdev_get_queue(pt->data_dev->bdev)->limits;
+		limits->discard_granularity = data_limits->discard_granularity;
+	} else
+		limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 }
 
 static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
@@ -2755,15 +2786,25 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	blk_limits_io_min(limits, 0);
 	blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
-	if (pool->pf.discard_enabled)
-		set_discard_limits(pool, limits);
+
+	/*
+	 * pt->adjusted_pf is a staging area for the actual features to use.
+	 * They get transferred to the live pool in bind_control_target()
+	 * called from pool_preresume().
+	 */
+	if (!pt->adjusted_pf.discard_enabled)
+		return;
+
+	disable_passdown_if_not_supported(pt);
+
+	set_discard_limits(pt, limits);
 }
 
 static struct target_type pool_target = {
 	.name = "thin-pool",
 	.features = DM_TARGET_SINGLETON | DM_TARGET_ALWAYS_WRITEABLE |
 		    DM_TARGET_IMMUTABLE,
-	.version = {1, 3, 0},
+	.version = {1, 4, 0},
 	.module = THIS_MODULE,
 	.ctr = pool_ctr,
 	.dtr = pool_dtr,
@@ -3042,19 +3083,19 @@ static int thin_iterate_devices(struct dm_target *ti,
 	return 0;
 }
 
+/*
+ * A thin device always inherits its queue limits from its pool.
+ */
 static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 {
 	struct thin_c *tc = ti->private;
-	struct pool *pool = tc->pool;
 
-	blk_limits_io_min(limits, 0);
-	blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
-	set_discard_limits(pool, limits);
+	*limits = bdev_get_queue(tc->pool_dev->bdev)->limits;
 }
 
 static struct target_type thin_target = {
 	.name = "thin",
-	.version = {1, 3, 0},
+	.version = {1, 4, 0},
 	.module	= THIS_MODULE,
 	.ctr = thin_ctr,
 	.dtr = thin_dtr,
diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c
index 254d19268ad..892ae2766aa 100644
--- a/drivers/md/dm-verity.c
+++ b/drivers/md/dm-verity.c
@@ -718,8 +718,8 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	v->hash_dev_block_bits = ffs(num) - 1;
 
 	if (sscanf(argv[5], "%llu%c", &num_ll, &dummy) != 1 ||
-	    num_ll << (v->data_dev_block_bits - SECTOR_SHIFT) !=
-	    (sector_t)num_ll << (v->data_dev_block_bits - SECTOR_SHIFT)) {
+	    (sector_t)(num_ll << (v->data_dev_block_bits - SECTOR_SHIFT))
+	    >> (v->data_dev_block_bits - SECTOR_SHIFT) != num_ll) {
 		ti->error = "Invalid data blocks";
 		r = -EINVAL;
 		goto bad;
@@ -733,8 +733,8 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	}
 
 	if (sscanf(argv[6], "%llu%c", &num_ll, &dummy) != 1 ||
-	    num_ll << (v->hash_dev_block_bits - SECTOR_SHIFT) !=
-	    (sector_t)num_ll << (v->hash_dev_block_bits - SECTOR_SHIFT)) {
+	    (sector_t)(num_ll << (v->hash_dev_block_bits - SECTOR_SHIFT))
+	    >> (v->hash_dev_block_bits - SECTOR_SHIFT) != num_ll) {
 		ti->error = "Invalid hash start";
 		r = -EINVAL;
 		goto bad;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4e09b6ff5b4..67ffa391edc 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -865,10 +865,14 @@ static void dm_done(struct request *clone, int error, bool mapped)
 {
 	int r = error;
 	struct dm_rq_target_io *tio = clone->end_io_data;
-	dm_request_endio_fn rq_end_io = tio->ti->type->rq_end_io;
+	dm_request_endio_fn rq_end_io = NULL;
 
-	if (mapped && rq_end_io)
-		r = rq_end_io(tio->ti, clone, error, &tio->info);
+	if (tio->ti) {
+		rq_end_io = tio->ti->type->rq_end_io;
+
+		if (mapped && rq_end_io)
+			r = rq_end_io(tio->ti, clone, error, &tio->info);
+	}
 
 	if (r <= 0)
 		/* The target wants to complete the I/O */
@@ -1588,15 +1592,6 @@ static int map_request(struct dm_target *ti, struct request *clone,
 	int r, requeued = 0;
 	struct dm_rq_target_io *tio = clone->end_io_data;
 
-	/*
-	 * Hold the md reference here for the in-flight I/O.
-	 * We can't rely on the reference count by device opener,
-	 * because the device may be closed during the request completion
-	 * when all bios are completed.
-	 * See the comment in rq_completed() too.
-	 */
-	dm_get(md);
-
 	tio->ti = ti;
 	r = ti->type->map_rq(ti, clone, &tio->info);
 	switch (r) {
@@ -1628,6 +1623,26 @@ static int map_request(struct dm_target *ti, struct request *clone,
 	return requeued;
 }
 
+static struct request *dm_start_request(struct mapped_device *md, struct request *orig)
+{
+	struct request *clone;
+
+	blk_start_request(orig);
+	clone = orig->special;
+	atomic_inc(&md->pending[rq_data_dir(clone)]);
+
+	/*
+	 * Hold the md reference here for the in-flight I/O.
+	 * We can't rely on the reference count by device opener,
+	 * because the device may be closed during the request completion
+	 * when all bios are completed.
+	 * See the comment in rq_completed() too.
+	 */
+	dm_get(md);
+
+	return clone;
+}
+
 /*
  * q->request_fn for request-based dm.
  * Called with the queue lock held.
@@ -1657,14 +1672,21 @@ static void dm_request_fn(struct request_queue *q)
 			pos = blk_rq_pos(rq);
 
 		ti = dm_table_find_target(map, pos);
-		BUG_ON(!dm_target_is_valid(ti));
+		if (!dm_target_is_valid(ti)) {
+			/*
+			 * Must perform setup, that dm_done() requires,
+			 * before calling dm_kill_unmapped_request
+			 */
+			DMERR_LIMIT("request attempted access beyond the end of device");
+			clone = dm_start_request(md, rq);
+			dm_kill_unmapped_request(clone, -EIO);
+			continue;
+		}
 
 		if (ti->type->busy && ti->type->busy(ti))
 			goto delay_and_out;
 
-		blk_start_request(rq);
-		clone = rq->special;
-		atomic_inc(&md->pending[rq_data_dir(clone)]);
+		clone = dm_start_request(md, rq);
 
 		spin_unlock(q->queue_lock);
 		if (map_request(ti, clone, md))
@@ -1684,8 +1706,6 @@ delay_and_out:
 	blk_delay_queue(q, HZ / 10);
 out:
 	dm_table_put(map);
-
-	return;
 }
 
 int dm_underlying_device_busy(struct request_queue *q)
@@ -2409,7 +2429,7 @@ static void dm_queue_flush(struct mapped_device *md)
  */
 struct dm_table *dm_swap_table(struct mapped_device *md, struct dm_table *table)
 {
-	struct dm_table *map = ERR_PTR(-EINVAL);
+	struct dm_table *live_map, *map = ERR_PTR(-EINVAL);
 	struct queue_limits limits;
 	int r;
 
@@ -2419,6 +2439,19 @@ struct dm_table *dm_swap_table(struct mapped_device *md, struct dm_table *table)
 	if (!dm_suspended_md(md))
 		goto out;
 
+	/*
+	 * If the new table has no data devices, retain the existing limits.
+	 * This helps multipath with queue_if_no_path if all paths disappear,
+	 * then new I/O is queued based on these limits, and then some paths
+	 * reappear.
+	 */
+	if (dm_table_has_no_data_devices(table)) {
+		live_map = dm_get_live_table(md);
+		if (live_map)
+			limits = md->queue->limits;
+		dm_table_put(live_map);
+	}
+
 	r = dm_calculate_queue_limits(table, &limits);
 	if (r) {
 		map = ERR_PTR(r);
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 52eef493d26..6a99fefaa74 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -54,6 +54,7 @@ void dm_table_event_callback(struct dm_table *t,
 			     void (*fn)(void *), void *context);
 struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index);
 struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector);
+bool dm_table_has_no_data_devices(struct dm_table *table);
 int dm_calculate_queue_limits(struct dm_table *table,
 			      struct queue_limits *limits);
 void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
diff --git a/drivers/md/md.c b/drivers/md/md.c
index fcd098794d3..308e87b417e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1108,8 +1108,11 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
 			ret = 0;
 	}
 	rdev->sectors = rdev->sb_start;
-	/* Limit to 4TB as metadata cannot record more than that */
-	if (rdev->sectors >= (2ULL << 32))
+	/* Limit to 4TB as metadata cannot record more than that.
+	 * (not needed for Linear and RAID0 as metadata doesn't
+	 * record this size)
+	 */
+	if (rdev->sectors >= (2ULL << 32) && sb->level >= 1)
 		rdev->sectors = (2ULL << 32) - 2;
 
 	if (rdev->sectors < ((sector_t)sb->size) * 2 && sb->level >= 1)
@@ -1400,7 +1403,7 @@ super_90_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors)
 	/* Limit to 4TB as metadata cannot record more than that.
 	 * 4TB == 2^32 KB, or 2*2^32 sectors.
 	 */
-	if (num_sectors >= (2ULL << 32))
+	if (num_sectors >= (2ULL << 32) && rdev->mddev->level >= 1)
 		num_sectors = (2ULL << 32) - 2;
 	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
 		       rdev->sb_page);
@@ -7616,6 +7619,8 @@ static int remove_and_add_spares(struct mddev *mddev)
 			}
 		}
 	}
+	if (removed)
+		set_bit(MD_CHANGE_DEVS, &mddev->flags);
 	return spares;
 }
 
@@ -7629,9 +7634,11 @@ static void reap_sync_thread(struct mddev *mddev)
 	    !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
 		/* success...*/
 		/* activate any spares */
-		if (mddev->pers->spare_active(mddev))
+		if (mddev->pers->spare_active(mddev)) {
 			sysfs_notify(&mddev->kobj, NULL,
 				     "degraded");
+			set_bit(MD_CHANGE_DEVS, &mddev->flags);
+		}
 	}
 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
 	    mddev->pers->finish_reshape)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index de5ed6fd880..0138a727c1f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -659,7 +659,11 @@ static int raid10_mergeable_bvec(struct request_queue *q,
 		max = biovec->bv_len;
 
 	if (mddev->merge_check_needed) {
-		struct r10bio r10_bio;
+		struct {
+			struct r10bio r10_bio;
+			struct r10dev devs[conf->copies];
+		} on_stack;
+		struct r10bio *r10_bio = &on_stack.r10_bio;
 		int s;
 		if (conf->reshape_progress != MaxSector) {
 			/* Cannot give any guidance during reshape */
@@ -667,18 +671,18 @@ static int raid10_mergeable_bvec(struct request_queue *q,
 				return biovec->bv_len;
 			return 0;
 		}
-		r10_bio.sector = sector;
-		raid10_find_phys(conf, &r10_bio);
+		r10_bio->sector = sector;
+		raid10_find_phys(conf, r10_bio);
 		rcu_read_lock();
 		for (s = 0; s < conf->copies; s++) {
-			int disk = r10_bio.devs[s].devnum;
+			int disk = r10_bio->devs[s].devnum;
 			struct md_rdev *rdev = rcu_dereference(
 				conf->mirrors[disk].rdev);
 			if (rdev && !test_bit(Faulty, &rdev->flags)) {
 				struct request_queue *q =
 					bdev_get_queue(rdev->bdev);
 				if (q->merge_bvec_fn) {
-					bvm->bi_sector = r10_bio.devs[s].addr
+					bvm->bi_sector = r10_bio->devs[s].addr
 						+ rdev->data_offset;
 					bvm->bi_bdev = rdev->bdev;
 					max = min(max, q->merge_bvec_fn(
@@ -690,7 +694,7 @@ static int raid10_mergeable_bvec(struct request_queue *q,
 				struct request_queue *q =
 					bdev_get_queue(rdev->bdev);
 				if (q->merge_bvec_fn) {
-					bvm->bi_sector = r10_bio.devs[s].addr
+					bvm->bi_sector = r10_bio->devs[s].addr
 						+ rdev->data_offset;
 					bvm->bi_bdev = rdev->bdev;
 					max = min(max, q->merge_bvec_fn(
@@ -1508,14 +1512,16 @@ static int _enough(struct r10conf *conf, struct geom *geo, int ignore)
 	do {
 		int n = conf->copies;
 		int cnt = 0;
+		int this = first;
 		while (n--) {
-			if (conf->mirrors[first].rdev &&
-			    first != ignore)
+			if (conf->mirrors[this].rdev &&
+			    this != ignore)
 				cnt++;
-			first = (first+1) % geo->raid_disks;
+			this = (this+1) % geo->raid_disks;
 		}
 		if (cnt == 0)
 			return 0;
+		first = (first + geo->near_copies) % geo->raid_disks;
 	} while (first != 0);
 	return 1;
 }
@@ -4414,14 +4420,18 @@ static int handle_reshape_read_error(struct mddev *mddev,
 {
 	/* Use sync reads to get the blocks from somewhere else */
 	int sectors = r10_bio->sectors;
-	struct r10bio r10b;
 	struct r10conf *conf = mddev->private;
+	struct {
+		struct r10bio r10_bio;
+		struct r10dev devs[conf->copies];
+	} on_stack;
+	struct r10bio *r10b = &on_stack.r10_bio;
 	int slot = 0;
 	int idx = 0;
 	struct bio_vec *bvec = r10_bio->master_bio->bi_io_vec;
 
-	r10b.sector = r10_bio->sector;
-	__raid10_find_phys(&conf->prev, &r10b);
+	r10b->sector = r10_bio->sector;
+	__raid10_find_phys(&conf->prev, r10b);
 
 	while (sectors) {
 		int s = sectors;
@@ -4432,7 +4442,7 @@ static int handle_reshape_read_error(struct mddev *mddev,
 			s = PAGE_SIZE >> 9;
 
 		while (!success) {
-			int d = r10b.devs[slot].devnum;
+			int d = r10b->devs[slot].devnum;
 			struct md_rdev *rdev = conf->mirrors[d].rdev;
 			sector_t addr;
 			if (rdev == NULL ||
@@ -4440,7 +4450,7 @@ static int handle_reshape_read_error(struct mddev *mddev,
 			    !test_bit(In_sync, &rdev->flags))
 				goto failed;
 
-			addr = r10b.devs[slot].addr + idx * PAGE_SIZE;
+			addr = r10b->devs[slot].addr + idx * PAGE_SIZE;
 			success = sync_page_io(rdev,
 					       addr,
 					       s << 9,
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 007c2c68dd8..1054cf60234 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -110,7 +110,7 @@ struct r10bio {
 	 * We choose the number when they are allocated.
 	 * We sometimes need an extra bio to write to the replacement.
 	 */
-	struct {
+	struct r10dev {
 		struct bio	*bio;
 		union {
 			struct bio	*repl_bio; /* used for resync and
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index adda94df5eb..0689173fd9f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -393,6 +393,8 @@ static int calc_degraded(struct r5conf *conf)
 	degraded = 0;
 	for (i = 0; i < conf->previous_raid_disks; i++) {
 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);
+		if (rdev && test_bit(Faulty, &rdev->flags))
+			rdev = rcu_dereference(conf->disks[i].replacement);
 		if (!rdev || test_bit(Faulty, &rdev->flags))
 			degraded++;
 		else if (test_bit(In_sync, &rdev->flags))
@@ -417,6 +419,8 @@ static int calc_degraded(struct r5conf *conf)
 	degraded2 = 0;
 	for (i = 0; i < conf->raid_disks; i++) {
 		struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev);
+		if (rdev && test_bit(Faulty, &rdev->flags))
+			rdev = rcu_dereference(conf->disks[i].replacement);
 		if (!rdev || test_bit(Faulty, &rdev->flags))
 			degraded2++;
 		else if (test_bit(In_sync, &rdev->flags))
@@ -1587,6 +1591,7 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 		#ifdef CONFIG_MULTICORE_RAID456
 		init_waitqueue_head(&nsh->ops.wait_for_ops);
 		#endif
+		spin_lock_init(&nsh->stripe_lock);
 
 		list_add(&nsh->lru, &newstripes);
 	}
@@ -4192,7 +4197,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
 			finish_wait(&conf->wait_for_overlap, &w);
 			set_bit(STRIPE_HANDLE, &sh->state);
 			clear_bit(STRIPE_DELAYED, &sh->state);
-			if ((bi->bi_rw & REQ_NOIDLE) &&
+			if ((bi->bi_rw & REQ_SYNC) &&
 			    !test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
 				atomic_inc(&conf->preread_active_stripes);
 			release_stripe_plug(mddev, sh);
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 8766ce8c354..c2117688aa2 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -1329,8 +1329,8 @@ static int dvb_net_remove_if(struct dvb_net *dvbnet, unsigned long num)
 		return -EBUSY;
 
 	dvb_net_stop(net);
-	flush_work_sync(&priv->set_multicast_list_wq);
-	flush_work_sync(&priv->restart_net_feed_wq);
+	flush_work(&priv->set_multicast_list_wq);
+	flush_work(&priv->restart_net_feed_wq);
 	printk("dvb_net: removed network interface %s\n", net->name);
 	unregister_netdev(net);
 	dvbnet->state[num]=0;
diff --git a/drivers/media/dvb/mantis/mantis_evm.c b/drivers/media/dvb/mantis/mantis_evm.c
index 71ce52875c3..909ff54868a 100644
--- a/drivers/media/dvb/mantis/mantis_evm.c
+++ b/drivers/media/dvb/mantis/mantis_evm.c
@@ -111,7 +111,7 @@ void mantis_evmgr_exit(struct mantis_ca *ca)
 	struct mantis_pci *mantis = ca->ca_priv;
 
 	dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
-	flush_work_sync(&ca->hif_evm_work);
+	flush_work(&ca->hif_evm_work);
 	mantis_hif_exit(ca);
 	mantis_pcmcia_exit(ca);
 }
diff --git a/drivers/media/dvb/mantis/mantis_uart.c b/drivers/media/dvb/mantis/mantis_uart.c
index 18340dafa42..85e977861b4 100644
--- a/drivers/media/dvb/mantis/mantis_uart.c
+++ b/drivers/media/dvb/mantis/mantis_uart.c
@@ -183,6 +183,6 @@ void mantis_uart_exit(struct mantis_pci *mantis)
 {
 	/* disable interrupt */
 	mmwrite(mmread(MANTIS_UART_CTL) & 0xffef, MANTIS_UART_CTL);
-	flush_work_sync(&mantis->uart_work);
+	flush_work(&mantis->uart_work);
 }
 EXPORT_SYMBOL_GPL(mantis_uart_exit);
diff --git a/drivers/media/dvb/ngene/ngene-cards.c b/drivers/media/dvb/ngene/ngene-cards.c
index 72ee8de0226..0a497be97af 100644
--- a/drivers/media/dvb/ngene/ngene-cards.c
+++ b/drivers/media/dvb/ngene/ngene-cards.c
@@ -524,7 +524,7 @@ static void ngene_resume(struct pci_dev *dev)
 	printk(KERN_INFO DEVICE_NAME ": resume\n");
 }
 
-static struct pci_error_handlers ngene_errors = {
+static const struct pci_error_handlers ngene_errors = {
 	.error_detected = ngene_error_detected,
 	.link_reset = ngene_link_reset,
 	.slot_reset = ngene_slot_reset,
diff --git a/drivers/media/dvb/siano/smsusb.c b/drivers/media/dvb/siano/smsusb.c
index 664e460f247..aac622200e9 100644
--- a/drivers/media/dvb/siano/smsusb.c
+++ b/drivers/media/dvb/siano/smsusb.c
@@ -481,7 +481,7 @@ static int smsusb_resume(struct usb_interface *intf)
 	return 0;
 }
 
-static const struct usb_device_id smsusb_id_table[] __devinitconst = {
+static const struct usb_device_id smsusb_id_table[] = {
 	{ USB_DEVICE(0x187f, 0x0010),
 		.driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
 	{ USB_DEVICE(0x187f, 0x0100),
diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
index d0b6bb50763..72ded29728b 100644
--- a/drivers/media/radio/radio-shark.c
+++ b/drivers/media/radio/radio-shark.c
@@ -35,6 +35,11 @@
 #include <media/v4l2-device.h>
 #include <sound/tea575x-tuner.h>
 
+#if defined(CONFIG_LEDS_CLASS) || \
+    (defined(CONFIG_LEDS_CLASS_MODULE) && defined(CONFIG_RADIO_SHARK_MODULE))
+#define SHARK_USE_LEDS 1
+#endif
+
 /*
  * Version Information
  */
@@ -56,44 +61,18 @@ MODULE_LICENSE("GPL");
 
 enum { BLUE_LED, BLUE_PULSE_LED, RED_LED, NO_LEDS };
 
-static void shark_led_set_blue(struct led_classdev *led_cdev,
-			       enum led_brightness value);
-static void shark_led_set_blue_pulse(struct led_classdev *led_cdev,
-				     enum led_brightness value);
-static void shark_led_set_red(struct led_classdev *led_cdev,
-			      enum led_brightness value);
-
-static const struct led_classdev shark_led_templates[NO_LEDS] = {
-	[BLUE_LED] = {
-		.name		= "%s:blue:",
-		.brightness	= LED_OFF,
-		.max_brightness = 127,
-		.brightness_set = shark_led_set_blue,
-	},
-	[BLUE_PULSE_LED] = {
-		.name		= "%s:blue-pulse:",
-		.brightness	= LED_OFF,
-		.max_brightness = 255,
-		.brightness_set = shark_led_set_blue_pulse,
-	},
-	[RED_LED] = {
-		.name		= "%s:red:",
-		.brightness	= LED_OFF,
-		.max_brightness = 1,
-		.brightness_set = shark_led_set_red,
-	},
-};
-
 struct shark_device {
 	struct usb_device *usbdev;
 	struct v4l2_device v4l2_dev;
 	struct snd_tea575x tea;
 
+#ifdef SHARK_USE_LEDS
 	struct work_struct led_work;
 	struct led_classdev leds[NO_LEDS];
 	char led_names[NO_LEDS][32];
 	atomic_t brightness[NO_LEDS];
 	unsigned long brightness_new;
+#endif
 
 	u8 *transfer_buffer;
 	u32 last_val;
@@ -175,20 +154,13 @@ static struct snd_tea575x_ops shark_tea_ops = {
 	.read_val  = shark_read_val,
 };
 
+#ifdef SHARK_USE_LEDS
 static void shark_led_work(struct work_struct *work)
 {
 	struct shark_device *shark =
 		container_of(work, struct shark_device, led_work);
 	int i, res, brightness, actual_len;
 
-	/*
-	 * We use the v4l2_dev lock and registered bit to ensure the device
-	 * does not get unplugged and unreffed while we're running.
-	 */
-	mutex_lock(&shark->tea.mutex);
-	if (!video_is_registered(&shark->tea.vd))
-		goto leave;
-
 	for (i = 0; i < 3; i++) {
 		if (!test_and_clear_bit(i, &shark->brightness_new))
 			continue;
@@ -208,8 +180,6 @@ static void shark_led_work(struct work_struct *work)
 			v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",
 				 shark->led_names[i], res);
 	}
-leave:
-	mutex_unlock(&shark->tea.mutex);
 }
 
 static void shark_led_set_blue(struct led_classdev *led_cdev,
@@ -245,19 +215,78 @@ static void shark_led_set_red(struct led_classdev *led_cdev,
 	schedule_work(&shark->led_work);
 }
 
+static const struct led_classdev shark_led_templates[NO_LEDS] = {
+	[BLUE_LED] = {
+		.name		= "%s:blue:",
+		.brightness	= LED_OFF,
+		.max_brightness = 127,
+		.brightness_set = shark_led_set_blue,
+	},
+	[BLUE_PULSE_LED] = {
+		.name		= "%s:blue-pulse:",
+		.brightness	= LED_OFF,
+		.max_brightness = 255,
+		.brightness_set = shark_led_set_blue_pulse,
+	},
+	[RED_LED] = {
+		.name		= "%s:red:",
+		.brightness	= LED_OFF,
+		.max_brightness = 1,
+		.brightness_set = shark_led_set_red,
+	},
+};
+
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	int i, retval;
+
+	INIT_WORK(&shark->led_work, shark_led_work);
+	for (i = 0; i < NO_LEDS; i++) {
+		shark->leds[i] = shark_led_templates[i];
+		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
+			 shark->leds[i].name, shark->v4l2_dev.name);
+		shark->leds[i].name = shark->led_names[i];
+		retval = led_classdev_register(dev, &shark->leds[i]);
+		if (retval) {
+			v4l2_err(&shark->v4l2_dev,
+				 "couldn't register led: %s\n",
+				 shark->led_names[i]);
+			return retval;
+		}
+	}
+	return 0;
+}
+
+static void shark_unregister_leds(struct shark_device *shark)
+{
+	int i;
+
+	for (i = 0; i < NO_LEDS; i++)
+		led_classdev_unregister(&shark->leds[i]);
+
+	cancel_work_sync(&shark->led_work);
+}
+#else
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	v4l2_warn(&shark->v4l2_dev,
+		  "CONFIG_LED_CLASS not enabled, LED support disabled\n");
+	return 0;
+}
+static inline void shark_unregister_leds(struct shark_device *shark) { }
+#endif
+
 static void usb_shark_disconnect(struct usb_interface *intf)
 {
 	struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
-	int i;
 
 	mutex_lock(&shark->tea.mutex);
 	v4l2_device_disconnect(&shark->v4l2_dev);
 	snd_tea575x_exit(&shark->tea);
 	mutex_unlock(&shark->tea.mutex);
 
-	for (i = 0; i < NO_LEDS; i++)
-		led_classdev_unregister(&shark->leds[i]);
+	shark_unregister_leds(shark);
 
 	v4l2_device_put(&shark->v4l2_dev);
 }
@@ -266,7 +295,6 @@ static void usb_shark_release(struct v4l2_device *v4l2_dev)
 {
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
 
-	cancel_work_sync(&shark->led_work);
 	v4l2_device_unregister(&shark->v4l2_dev);
 	kfree(shark->transfer_buffer);
 	kfree(shark);
@@ -276,7 +304,7 @@ static int usb_shark_probe(struct usb_interface *intf,
 			   const struct usb_device_id *id)
 {
 	struct shark_device *shark;
-	int i, retval = -ENOMEM;
+	int retval = -ENOMEM;
 
 	shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);
 	if (!shark)
@@ -286,17 +314,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 	if (!shark->transfer_buffer)
 		goto err_alloc_buffer;
 
-	/*
-	 * Work around a bug in usbhid/hid-core.c, where it leaves a dangling
-	 * pointer in intfdata causing v4l2-device.c to not set it. Which
-	 * results in usb_shark_disconnect() referencing the dangling pointer
-	 *
-	 * REMOVE (as soon as the above bug is fixed, patch submitted)
-	 */
-	usb_set_intfdata(intf, NULL);
+	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
+
+	retval = shark_register_leds(shark, &intf->dev);
+	if (retval)
+		goto err_reg_leds;
 
 	shark->v4l2_dev.release = usb_shark_release;
-	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
 	retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);
 	if (retval) {
 		v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");
@@ -320,32 +344,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 		goto err_init_tea;
 	}
 
-	INIT_WORK(&shark->led_work, shark_led_work);
-	for (i = 0; i < NO_LEDS; i++) {
-		shark->leds[i] = shark_led_templates[i];
-		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
-			 shark->leds[i].name, shark->v4l2_dev.name);
-		shark->leds[i].name = shark->led_names[i];
-		/*
-		 * We don't fail the probe if we fail to register the leds,
-		 * because once we've called snd_tea575x_init, the /dev/radio0
-		 * node may be opened from userspace holding a reference to us!
-		 *
-		 * Note we cannot register the leds first instead as
-		 * shark_led_work depends on the v4l2 mutex and registered bit.
-		 */
-		retval = led_classdev_register(&intf->dev, &shark->leds[i]);
-		if (retval)
-			v4l2_err(&shark->v4l2_dev,
-				 "couldn't register led: %s\n",
-				 shark->led_names[i]);
-	}
-
 	return 0;
 
 err_init_tea:
 	v4l2_device_unregister(&shark->v4l2_dev);
 err_reg_dev:
+	shark_unregister_leds(shark);
+err_reg_leds:
 	kfree(shark->transfer_buffer);
 err_alloc_buffer:
 	kfree(shark);
diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
index b9575de3e7e..7b4efdfaae2 100644
--- a/drivers/media/radio/radio-shark2.c
+++ b/drivers/media/radio/radio-shark2.c
@@ -35,6 +35,11 @@
 #include <media/v4l2-device.h>
 #include "radio-tea5777.h"
 
+#if defined(CONFIG_LEDS_CLASS) || \
+    (defined(CONFIG_LEDS_CLASS_MODULE) && defined(CONFIG_RADIO_SHARK2_MODULE))
+#define SHARK_USE_LEDS 1
+#endif
+
 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
 MODULE_DESCRIPTION("Griffin radioSHARK2, USB radio receiver driver");
 MODULE_LICENSE("GPL");
@@ -43,7 +48,6 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
-
 #define SHARK_IN_EP		0x83
 #define SHARK_OUT_EP		0x05
 
@@ -54,36 +58,18 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
 enum { BLUE_LED, RED_LED, NO_LEDS };
 
-static void shark_led_set_blue(struct led_classdev *led_cdev,
-			       enum led_brightness value);
-static void shark_led_set_red(struct led_classdev *led_cdev,
-			      enum led_brightness value);
-
-static const struct led_classdev shark_led_templates[NO_LEDS] = {
-	[BLUE_LED] = {
-		.name		= "%s:blue:",
-		.brightness	= LED_OFF,
-		.max_brightness = 127,
-		.brightness_set = shark_led_set_blue,
-	},
-	[RED_LED] = {
-		.name		= "%s:red:",
-		.brightness	= LED_OFF,
-		.max_brightness = 1,
-		.brightness_set = shark_led_set_red,
-	},
-};
-
 struct shark_device {
 	struct usb_device *usbdev;
 	struct v4l2_device v4l2_dev;
 	struct radio_tea5777 tea;
 
+#ifdef SHARK_USE_LEDS
 	struct work_struct led_work;
 	struct led_classdev leds[NO_LEDS];
 	char led_names[NO_LEDS][32];
 	atomic_t brightness[NO_LEDS];
 	unsigned long brightness_new;
+#endif
 
 	u8 *transfer_buffer;
 };
@@ -161,18 +147,12 @@ static struct radio_tea5777_ops shark_tea_ops = {
 	.read_reg  = shark_read_reg,
 };
 
+#ifdef SHARK_USE_LEDS
 static void shark_led_work(struct work_struct *work)
 {
 	struct shark_device *shark =
 		container_of(work, struct shark_device, led_work);
 	int i, res, brightness, actual_len;
-	/*
-	 * We use the v4l2_dev lock and registered bit to ensure the device
-	 * does not get unplugged and unreffed while we're running.
-	 */
-	mutex_lock(&shark->tea.mutex);
-	if (!video_is_registered(&shark->tea.vd))
-		goto leave;
 
 	for (i = 0; i < 2; i++) {
 		if (!test_and_clear_bit(i, &shark->brightness_new))
@@ -191,8 +171,6 @@ static void shark_led_work(struct work_struct *work)
 			v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",
 				 shark->led_names[i], res);
 	}
-leave:
-	mutex_unlock(&shark->tea.mutex);
 }
 
 static void shark_led_set_blue(struct led_classdev *led_cdev,
@@ -217,19 +195,72 @@ static void shark_led_set_red(struct led_classdev *led_cdev,
 	schedule_work(&shark->led_work);
 }
 
+static const struct led_classdev shark_led_templates[NO_LEDS] = {
+	[BLUE_LED] = {
+		.name		= "%s:blue:",
+		.brightness	= LED_OFF,
+		.max_brightness = 127,
+		.brightness_set = shark_led_set_blue,
+	},
+	[RED_LED] = {
+		.name		= "%s:red:",
+		.brightness	= LED_OFF,
+		.max_brightness = 1,
+		.brightness_set = shark_led_set_red,
+	},
+};
+
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	int i, retval;
+
+	INIT_WORK(&shark->led_work, shark_led_work);
+	for (i = 0; i < NO_LEDS; i++) {
+		shark->leds[i] = shark_led_templates[i];
+		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
+			 shark->leds[i].name, shark->v4l2_dev.name);
+		shark->leds[i].name = shark->led_names[i];
+		retval = led_classdev_register(dev, &shark->leds[i]);
+		if (retval) {
+			v4l2_err(&shark->v4l2_dev,
+				 "couldn't register led: %s\n",
+				 shark->led_names[i]);
+			return retval;
+		}
+	}
+	return 0;
+}
+
+static void shark_unregister_leds(struct shark_device *shark)
+{
+	int i;
+
+	for (i = 0; i < NO_LEDS; i++)
+		led_classdev_unregister(&shark->leds[i]);
+
+	cancel_work_sync(&shark->led_work);
+}
+#else
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	v4l2_warn(&shark->v4l2_dev,
+		  "CONFIG_LED_CLASS not enabled, LED support disabled\n");
+	return 0;
+}
+static inline void shark_unregister_leds(struct shark_device *shark) { }
+#endif
+
 static void usb_shark_disconnect(struct usb_interface *intf)
 {
 	struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
-	int i;
 
 	mutex_lock(&shark->tea.mutex);
 	v4l2_device_disconnect(&shark->v4l2_dev);
 	radio_tea5777_exit(&shark->tea);
 	mutex_unlock(&shark->tea.mutex);
 
-	for (i = 0; i < NO_LEDS; i++)
-		led_classdev_unregister(&shark->leds[i]);
+	shark_unregister_leds(shark);
 
 	v4l2_device_put(&shark->v4l2_dev);
 }
@@ -238,7 +269,6 @@ static void usb_shark_release(struct v4l2_device *v4l2_dev)
 {
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
 
-	cancel_work_sync(&shark->led_work);
 	v4l2_device_unregister(&shark->v4l2_dev);
 	kfree(shark->transfer_buffer);
 	kfree(shark);
@@ -248,7 +278,7 @@ static int usb_shark_probe(struct usb_interface *intf,
 			   const struct usb_device_id *id)
 {
 	struct shark_device *shark;
-	int i, retval = -ENOMEM;
+	int retval = -ENOMEM;
 
 	shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);
 	if (!shark)
@@ -258,17 +288,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 	if (!shark->transfer_buffer)
 		goto err_alloc_buffer;
 
-	/*
-	 * Work around a bug in usbhid/hid-core.c, where it leaves a dangling
-	 * pointer in intfdata causing v4l2-device.c to not set it. Which
-	 * results in usb_shark_disconnect() referencing the dangling pointer
-	 *
-	 * REMOVE (as soon as the above bug is fixed, patch submitted)
-	 */
-	usb_set_intfdata(intf, NULL);
+	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
+
+	retval = shark_register_leds(shark, &intf->dev);
+	if (retval)
+		goto err_reg_leds;
 
 	shark->v4l2_dev.release = usb_shark_release;
-	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
 	retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);
 	if (retval) {
 		v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");
@@ -292,32 +318,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 		goto err_init_tea;
 	}
 
-	INIT_WORK(&shark->led_work, shark_led_work);
-	for (i = 0; i < NO_LEDS; i++) {
-		shark->leds[i] = shark_led_templates[i];
-		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
-			 shark->leds[i].name, shark->v4l2_dev.name);
-		shark->leds[i].name = shark->led_names[i];
-		/*
-		 * We don't fail the probe if we fail to register the leds,
-		 * because once we've called radio_tea5777_init, the /dev/radio0
-		 * node may be opened from userspace holding a reference to us!
-		 *
-		 * Note we cannot register the leds first instead as
-		 * shark_led_work depends on the v4l2 mutex and registered bit.
-		 */
-		retval = led_classdev_register(&intf->dev, &shark->leds[i]);
-		if (retval)
-			v4l2_err(&shark->v4l2_dev,
-				 "couldn't register led: %s\n",
-				 shark->led_names[i]);
-	}
-
 	return 0;
 
 err_init_tea:
 	v4l2_device_unregister(&shark->v4l2_dev);
 err_reg_dev:
+	shark_unregister_leds(shark);
+err_reg_leds:
 	kfree(shark->transfer_buffer);
 err_alloc_buffer:
 	kfree(shark);
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c
index 9e38132afec..9bb65e170d9 100644
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -151,6 +151,7 @@ static const struct v4l2_frequency_band bands[] = {
 		.index = 0,
 		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
 			    V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO |
+			    V4L2_TUNER_CAP_FREQ_BANDS |
 			    V4L2_TUNER_CAP_HWSEEK_BOUNDED |
 			    V4L2_TUNER_CAP_HWSEEK_WRAP,
 		.rangelow   =  87500 * 16,
@@ -162,6 +163,7 @@ static const struct v4l2_frequency_band bands[] = {
 		.index = 1,
 		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
 			    V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO |
+			    V4L2_TUNER_CAP_FREQ_BANDS |
 			    V4L2_TUNER_CAP_HWSEEK_BOUNDED |
 			    V4L2_TUNER_CAP_HWSEEK_WRAP,
 		.rangelow   =  76000 * 16,
@@ -173,6 +175,7 @@ static const struct v4l2_frequency_band bands[] = {
 		.index = 2,
 		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
 			    V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO |
+			    V4L2_TUNER_CAP_FREQ_BANDS |
 			    V4L2_TUNER_CAP_HWSEEK_BOUNDED |
 			    V4L2_TUNER_CAP_HWSEEK_WRAP,
 		.rangelow   =  76000 * 16,
diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
index 643a6ff7c5d..f867f04cccc 100644
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c
+++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -225,8 +225,9 @@ int si470x_vidioc_querycap(struct file *file, void *priv,
 {
 	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
 	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
-	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
-		V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+	capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_READWRITE |
+		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
+	capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS;
 
 	return 0;
 }
diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c
index 146be4263ea..be076f7181e 100644
--- a/drivers/media/radio/si470x/radio-si470x-usb.c
+++ b/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -531,7 +531,7 @@ int si470x_vidioc_querycap(struct file *file, void *priv,
 	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
 	usb_make_path(radio->usbdev, capability->bus_info,
 			sizeof(capability->bus_info));
-	capability->device_caps = V4L2_CAP_HW_FREQ_SEEK |
+	capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_READWRITE |
 		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
 	capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS;
 	return 0;
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 5180390be7a..8be57634ba6 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -261,6 +261,7 @@ config IR_WINBOND_CIR
 
 config IR_IGUANA
 	tristate "IguanaWorks USB IR Transceiver"
+	depends on USB_ARCH_HAS_HCD
 	depends on RC_CORE
 	select USB
 	---help---
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index b58ff87db77..2ce7179a386 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -196,7 +196,7 @@ static void request_modules(struct bttv *dev)
 
 static void flush_request_modules(struct bttv *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 7e5ffd6f517..75c89090792 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -272,7 +272,7 @@ static void request_modules(struct cx18 *dev)
 
 static void flush_request_modules(struct cx18 *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/cx231xx/cx231xx-cards.c b/drivers/media/video/cx231xx/cx231xx-cards.c
index 02d4d36735d..b84ebc54d91 100644
--- a/drivers/media/video/cx231xx/cx231xx-cards.c
+++ b/drivers/media/video/cx231xx/cx231xx-cards.c
@@ -1002,7 +1002,7 @@ static void request_modules(struct cx231xx *dev)
 
 static void flush_request_modules(struct cx231xx *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/cx23885/cx23885-input.c b/drivers/media/video/cx23885/cx23885-input.c
index ce765e3f77b..bcbf7faf1ba 100644
--- a/drivers/media/video/cx23885/cx23885-input.c
+++ b/drivers/media/video/cx23885/cx23885-input.c
@@ -231,9 +231,9 @@ static void cx23885_input_ir_stop(struct cx23885_dev *dev)
 		v4l2_subdev_call(dev->sd_ir, ir, rx_s_parameters, &params);
 		v4l2_subdev_call(dev->sd_ir, ir, rx_g_parameters, &params);
 	}
-	flush_work_sync(&dev->cx25840_work);
-	flush_work_sync(&dev->ir_rx_work);
-	flush_work_sync(&dev->ir_tx_work);
+	flush_work(&dev->cx25840_work);
+	flush_work(&dev->ir_rx_work);
+	flush_work(&dev->ir_tx_work);
 }
 
 static void cx23885_input_ir_close(struct rc_dev *rc)
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c
index cd5386ee210..c04fb618e10 100644
--- a/drivers/media/video/cx88/cx88-mpeg.c
+++ b/drivers/media/video/cx88/cx88-mpeg.c
@@ -70,7 +70,7 @@ static void request_modules(struct cx8802_dev *dev)
 
 static void flush_request_modules(struct cx8802_dev *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/davinci/vpbe_venc.c b/drivers/media/video/davinci/vpbe_venc.c
index b21ecc8d134..0302669622d 100644
--- a/drivers/media/video/davinci/vpbe_venc.c
+++ b/drivers/media/video/davinci/vpbe_venc.c
@@ -27,7 +27,7 @@
 
 #include <mach/hardware.h>
 #include <mach/mux.h>
-#include <mach/i2c.h>
+#include <linux/platform_data/i2c-davinci.h>
 
 #include <linux/io.h>
 
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index ca62b998138..f7831e73f07 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -2900,7 +2900,7 @@ static void request_modules(struct em28xx *dev)
 
 static void flush_request_modules(struct em28xx *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/gspca/jl2005bcd.c b/drivers/media/video/gspca/jl2005bcd.c
index cf9d9fca5b8..234777116e5 100644
--- a/drivers/media/video/gspca/jl2005bcd.c
+++ b/drivers/media/video/gspca/jl2005bcd.c
@@ -512,7 +512,7 @@ static const struct sd_desc sd_desc = {
 };
 
 /* -- module initialisation -- */
-static const __devinitdata struct usb_device_id device_table[] = {
+static const struct usb_device_id device_table[] = {
 	{USB_DEVICE(0x0979, 0x0227)},
 	{}
 };
diff --git a/drivers/media/video/gspca/spca506.c b/drivers/media/video/gspca/spca506.c
index 969bb5a4cd9..bab01c86c31 100644
--- a/drivers/media/video/gspca/spca506.c
+++ b/drivers/media/video/gspca/spca506.c
@@ -579,7 +579,7 @@ static const struct sd_desc sd_desc = {
 };
 
 /* -- module initialisation -- */
-static const struct usb_device_id device_table[] __devinitconst = {
+static const struct usb_device_id device_table[] = {
 	{USB_DEVICE(0x06e1, 0xa190)},
 /*fixme: may be IntelPCCameraPro BRIDGE_SPCA505
 	{USB_DEVICE(0x0733, 0x0430)}, */
diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c
index 7efe9ad7acc..0b91a5cd38e 100644
--- a/drivers/media/video/mem2mem_testdev.c
+++ b/drivers/media/video/mem2mem_testdev.c
@@ -431,7 +431,7 @@ static int vidioc_querycap(struct file *file, void *priv,
 	strncpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver) - 1);
 	strncpy(cap->card, MEM2MEM_NAME, sizeof(cap->card) - 1);
 	strlcpy(cap->bus_info, MEM2MEM_NAME, sizeof(cap->bus_info));
-	cap->capabilities = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
+	cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
 	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 	return 0;
 }
diff --git a/drivers/media/video/mx1_camera.c b/drivers/media/video/mx1_camera.c
index d2e6f82ecfa..bbe70991d30 100644
--- a/drivers/media/video/mx1_camera.c
+++ b/drivers/media/video/mx1_camera.c
@@ -44,7 +44,7 @@
 #include <mach/dma-mx1-mx2.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
-#include <mach/mx1_camera.h>
+#include <linux/platform_data/camera-mx1.h>
 
 /*
  * CSI registers
@@ -403,7 +403,7 @@ static void mx1_camera_activate(struct mx1_camera_dev *pcdev)
 
 	dev_dbg(pcdev->icd->parent, "Activate device\n");
 
-	clk_enable(pcdev->clk);
+	clk_prepare_enable(pcdev->clk);
 
 	/* enable CSI before doing anything else */
 	__raw_writel(csicr1, pcdev->base + CSICR1);
@@ -422,7 +422,7 @@ static void mx1_camera_deactivate(struct mx1_camera_dev *pcdev)
 	/* Disable all CSI interface */
 	__raw_writel(0x00, pcdev->base + CSICR1);
 
-	clk_disable(pcdev->clk);
+	clk_disable_unprepare(pcdev->clk);
 }
 
 /*
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 637bde8aca2..965427f279a 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -40,7 +40,7 @@
 
 #include <linux/videodev2.h>
 
-#include <mach/mx2_cam.h>
+#include <linux/platform_data/camera-mx2.h>
 #include <mach/hardware.h>
 
 #include <asm/dma.h>
@@ -272,7 +272,7 @@ struct mx2_camera_dev {
 	struct device		*dev;
 	struct soc_camera_host	soc_host;
 	struct soc_camera_device *icd;
-	struct clk		*clk_csi, *clk_emma;
+	struct clk		*clk_csi, *clk_emma_ahb, *clk_emma_ipg;
 
 	unsigned int		irq_csi, irq_emma;
 	void __iomem		*base_csi, *base_emma;
@@ -407,7 +407,7 @@ static void mx2_camera_deactivate(struct mx2_camera_dev *pcdev)
 {
 	unsigned long flags;
 
-	clk_disable(pcdev->clk_csi);
+	clk_disable_unprepare(pcdev->clk_csi);
 	writel(0, pcdev->base_csi + CSICR1);
 	if (cpu_is_mx27()) {
 		writel(0, pcdev->base_emma + PRP_CNTL);
@@ -435,7 +435,7 @@ static int mx2_camera_add_device(struct soc_camera_device *icd)
 	if (pcdev->icd)
 		return -EBUSY;
 
-	ret = clk_enable(pcdev->clk_csi);
+	ret = clk_prepare_enable(pcdev->clk_csi);
 	if (ret < 0)
 		return ret;
 
@@ -1633,23 +1633,34 @@ static int __devinit mx27_camera_emma_init(struct mx2_camera_dev *pcdev)
 		goto exit_iounmap;
 	}
 
-	pcdev->clk_emma = clk_get(NULL, "emma");
-	if (IS_ERR(pcdev->clk_emma)) {
-		err = PTR_ERR(pcdev->clk_emma);
+	pcdev->clk_emma_ipg = clk_get(pcdev->dev, "emma-ipg");
+	if (IS_ERR(pcdev->clk_emma_ipg)) {
+		err = PTR_ERR(pcdev->clk_emma_ipg);
 		goto exit_free_irq;
 	}
 
-	clk_enable(pcdev->clk_emma);
+	clk_prepare_enable(pcdev->clk_emma_ipg);
+
+	pcdev->clk_emma_ahb = clk_get(pcdev->dev, "emma-ahb");
+	if (IS_ERR(pcdev->clk_emma_ahb)) {
+		err = PTR_ERR(pcdev->clk_emma_ahb);
+		goto exit_clk_emma_ipg_put;
+	}
+
+	clk_prepare_enable(pcdev->clk_emma_ahb);
 
 	err = mx27_camera_emma_prp_reset(pcdev);
 	if (err)
-		goto exit_clk_emma_put;
+		goto exit_clk_emma_ahb_put;
 
 	return err;
 
-exit_clk_emma_put:
-	clk_disable(pcdev->clk_emma);
-	clk_put(pcdev->clk_emma);
+exit_clk_emma_ahb_put:
+	clk_disable_unprepare(pcdev->clk_emma_ahb);
+	clk_put(pcdev->clk_emma_ahb);
+exit_clk_emma_ipg_put:
+	clk_disable_unprepare(pcdev->clk_emma_ipg);
+	clk_put(pcdev->clk_emma_ipg);
 exit_free_irq:
 	free_irq(pcdev->irq_emma, pcdev);
 exit_iounmap:
@@ -1685,7 +1696,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
 		goto exit;
 	}
 
-	pcdev->clk_csi = clk_get(&pdev->dev, NULL);
+	pcdev->clk_csi = clk_get(&pdev->dev, "ahb");
 	if (IS_ERR(pcdev->clk_csi)) {
 		dev_err(&pdev->dev, "Could not get csi clock\n");
 		err = PTR_ERR(pcdev->clk_csi);
@@ -1785,8 +1796,10 @@ exit_free_emma:
 eallocctx:
 	if (cpu_is_mx27()) {
 		free_irq(pcdev->irq_emma, pcdev);
-		clk_disable(pcdev->clk_emma);
-		clk_put(pcdev->clk_emma);
+		clk_disable_unprepare(pcdev->clk_emma_ipg);
+		clk_put(pcdev->clk_emma_ipg);
+		clk_disable_unprepare(pcdev->clk_emma_ahb);
+		clk_put(pcdev->clk_emma_ahb);
 		iounmap(pcdev->base_emma);
 		release_mem_region(pcdev->res_emma->start, resource_size(pcdev->res_emma));
 	}
@@ -1825,8 +1838,10 @@ static int __devexit mx2_camera_remove(struct platform_device *pdev)
 	iounmap(pcdev->base_csi);
 
 	if (cpu_is_mx27()) {
-		clk_disable(pcdev->clk_emma);
-		clk_put(pcdev->clk_emma);
+		clk_disable_unprepare(pcdev->clk_emma_ipg);
+		clk_put(pcdev->clk_emma_ipg);
+		clk_disable_unprepare(pcdev->clk_emma_ahb);
+		clk_put(pcdev->clk_emma_ahb);
 		iounmap(pcdev->base_emma);
 		res = pcdev->res_emma;
 		release_mem_region(res->start, resource_size(res));
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index f13643d3135..1481b0d419d 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -25,8 +25,8 @@
 #include <media/soc_mediabus.h>
 
 #include <mach/ipu.h>
-#include <mach/mx3_camera.h>
-#include <mach/dma.h>
+#include <linux/platform_data/camera-mx3.h>
+#include <linux/platform_data/dma-imx.h>
 
 #define MX3_CAM_DRV_NAME "mx3-camera"
 
@@ -61,15 +61,9 @@
 
 #define MAX_VIDEO_MEM 16
 
-enum csi_buffer_state {
-	CSI_BUF_NEEDS_INIT,
-	CSI_BUF_PREPARED,
-};
-
 struct mx3_camera_buffer {
 	/* common v4l buffer stuff -- must be first */
 	struct vb2_buffer			vb;
-	enum csi_buffer_state			state;
 	struct list_head			queue;
 
 	/* One descriptot per scatterlist (per frame) */
@@ -285,7 +279,7 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb)
 		goto error;
 	}
 
-	if (buf->state == CSI_BUF_NEEDS_INIT) {
+	if (!buf->txd) {
 		sg_dma_address(sg)	= vb2_dma_contig_plane_dma_addr(vb, 0);
 		sg_dma_len(sg)		= new_size;
 
@@ -298,7 +292,6 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb)
 		txd->callback_param	= txd;
 		txd->callback		= mx3_cam_dma_done;
 
-		buf->state		= CSI_BUF_PREPARED;
 		buf->txd		= txd;
 	} else {
 		txd = buf->txd;
@@ -385,7 +378,6 @@ static void mx3_videobuf_release(struct vb2_buffer *vb)
 
 	/* Doesn't hurt also if the list is empty */
 	list_del_init(&buf->queue);
-	buf->state = CSI_BUF_NEEDS_INIT;
 
 	if (txd) {
 		buf->txd = NULL;
@@ -405,13 +397,13 @@ static int mx3_videobuf_init(struct vb2_buffer *vb)
 	struct mx3_camera_dev *mx3_cam = ici->priv;
 	struct mx3_camera_buffer *buf = to_mx3_vb(vb);
 
-	/* This is for locking debugging only */
-	INIT_LIST_HEAD(&buf->queue);
-	sg_init_table(&buf->sg, 1);
+	if (!buf->txd) {
+		/* This is for locking debugging only */
+		INIT_LIST_HEAD(&buf->queue);
+		sg_init_table(&buf->sg, 1);
 
-	buf->state = CSI_BUF_NEEDS_INIT;
-
-	mx3_cam->buf_total += vb2_plane_size(vb, 0);
+		mx3_cam->buf_total += vb2_plane_size(vb, 0);
+	}
 
 	return 0;
 }
diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 88cf9d95263..409da0f8e5c 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -44,6 +44,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 
+#include <plat/cpu.h>
 #include <plat/dma.h>
 #include <plat/vrfb.h>
 #include <video/omapdss.h>
diff --git a/drivers/media/video/omap24xxcam.c b/drivers/media/video/omap24xxcam.c
index e5015b0d550..8d7283bbd43 100644
--- a/drivers/media/video/omap24xxcam.c
+++ b/drivers/media/video/omap24xxcam.c
@@ -1198,7 +1198,7 @@ static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
 
 	atomic_inc(&cam->reset_disable);
 
-	flush_work_sync(&cam->sensor_reset_work);
+	flush_work(&cam->sensor_reset_work);
 
 	rval = videobuf_streamoff(q);
 	if (!rval) {
@@ -1512,7 +1512,7 @@ static int omap24xxcam_release(struct file *file)
 
 	atomic_inc(&cam->reset_disable);
 
-	flush_work_sync(&cam->sensor_reset_work);
+	flush_work(&cam->sensor_reset_work);
 
 	/* stop streaming capture */
 	videobuf_streamoff(&fh->vbq);
@@ -1536,7 +1536,7 @@ static int omap24xxcam_release(struct file *file)
 	 * not be scheduled anymore since streaming is already
 	 * disabled.)
 	 */
-	flush_work_sync(&cam->sensor_reset_work);
+	flush_work(&cam->sensor_reset_work);
 
 	mutex_lock(&cam->mutex);
 	if (atomic_dec_return(&cam->users) == 0) {
diff --git a/drivers/media/video/omap3isp/isp.c b/drivers/media/video/omap3isp/isp.c
index 1c347633e66..43e61fe5df5 100644
--- a/drivers/media/video/omap3isp/isp.c
+++ b/drivers/media/video/omap3isp/isp.c
@@ -70,6 +70,8 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
 
+#include <plat/cpu.h>
+
 #include "isp.h"
 #include "ispreg.h"
 #include "ispccdc.h"
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index 9c21e01f2c2..1e3776d08da 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -37,7 +37,7 @@
 #include <linux/videodev2.h>
 
 #include <mach/dma.h>
-#include <mach/camera.h>
+#include <linux/platform_data/camera-pxa.h>
 
 #define PXA_CAM_VERSION "0.0.6"
 #define PXA_CAM_DRV_NAME "pxa27x-camera"
diff --git a/drivers/media/video/s5p-fimc/mipi-csis.c b/drivers/media/video/s5p-fimc/mipi-csis.c
index 2f73d9e3d0b..5e898432883 100644
--- a/drivers/media/video/s5p-fimc/mipi-csis.c
+++ b/drivers/media/video/s5p-fimc/mipi-csis.c
@@ -26,7 +26,7 @@
 #include <linux/spinlock.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-subdev.h>
-#include <plat/mipi_csis.h>
+#include <linux/platform_data/mipi-csis.h>
 #include "mipi-csis.h"
 
 static int debug;
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 5fbb4e49495..f2b37e05b96 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -170,7 +170,7 @@ static void request_submodules(struct saa7134_dev *dev)
 
 static void flush_request_submodules(struct saa7134_dev *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 
 #else
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index dde361a9194..4df79c65690 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -556,7 +556,7 @@ static int empress_fini(struct saa7134_dev *dev)
 
 	if (NULL == dev->empress_dev)
 		return 0;
-	flush_work_sync(&dev->empress_workqueue);
+	flush_work(&dev->empress_workqueue);
 	video_unregister_device(dev->empress_dev);
 	dev->empress_dev = NULL;
 	return 0;
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index b03ffecb743..1bde255e45d 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -171,7 +171,8 @@ static int soc_camera_try_fmt(struct soc_camera_device *icd,
 	dev_dbg(icd->pdev, "TRY_FMT(%c%c%c%c, %ux%u)\n",
 		pixfmtstr(pix->pixelformat), pix->width, pix->height);
 
-	if (!(ici->capabilities & SOCAM_HOST_CAP_STRIDE)) {
+	if (pix->pixelformat != V4L2_PIX_FMT_JPEG &&
+	    !(ici->capabilities & SOCAM_HOST_CAP_STRIDE)) {
 		pix->bytesperline = 0;
 		pix->sizeimage = 0;
 	}
diff --git a/drivers/media/video/soc_mediabus.c b/drivers/media/video/soc_mediabus.c
index 89dce097a82..a397812635d 100644
--- a/drivers/media/video/soc_mediabus.c
+++ b/drivers/media/video/soc_mediabus.c
@@ -378,6 +378,9 @@ EXPORT_SYMBOL(soc_mbus_samples_per_pixel);
 
 s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf)
 {
+	if (mf->fourcc == V4L2_PIX_FMT_JPEG)
+		return 0;
+
 	if (mf->layout != SOC_MBUS_LAYOUT_PACKED)
 		return width * mf->bits_per_sample / 8;
 
@@ -400,6 +403,9 @@ EXPORT_SYMBOL(soc_mbus_bytes_per_line);
 s32 soc_mbus_image_size(const struct soc_mbus_pixelfmt *mf,
 			u32 bytes_per_line, u32 height)
 {
+	if (mf->fourcc == V4L2_PIX_FMT_JPEG)
+		return 0;
+
 	if (mf->layout == SOC_MBUS_LAYOUT_PACKED)
 		return bytes_per_line * height;
 
diff --git a/drivers/media/video/tm6000/tm6000-cards.c b/drivers/media/video/tm6000/tm6000-cards.c
index 034659b1317..307d8c5fb7c 100644
--- a/drivers/media/video/tm6000/tm6000-cards.c
+++ b/drivers/media/video/tm6000/tm6000-cards.c
@@ -1074,7 +1074,7 @@ static void request_modules(struct tm6000_core *dev)
 
 static void flush_request_modules(struct tm6000_core *dev)
 {
-	flush_work_sync(&dev->request_module_wk);
+	flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c
index 9288fbd5001..5577381b5bf 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -338,6 +338,7 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
 	if ((queue->flags & UVC_QUEUE_DROP_CORRUPTED) && buf->error) {
 		buf->error = 0;
 		buf->state = UVC_BUF_STATE_QUEUED;
+		buf->bytesused = 0;
 		vb2_set_plane_payload(&buf->buf, 0, 0);
 		return buf;
 	}
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index c3b7b5f59b3..6bc47fc82fe 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -402,8 +402,10 @@ static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
 {
 	const struct v4l2_hw_freq_seek *p = arg;
 
-	pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n",
-		p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing);
+	pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, "
+		"rangelow=%u, rangehigh=%u\n",
+		p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
+		p->rangelow, p->rangehigh);
 }
 
 static void v4l_print_requestbuffers(const void *arg, bool write_only)
@@ -1853,6 +1855,8 @@ static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
 			.type = type,
 		};
 
+		if (p->index)
+			return -EINVAL;
 		err = ops->vidioc_g_tuner(file, fh, &t);
 		if (err)
 			return err;
@@ -1870,6 +1874,8 @@ static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
 
 		if (type != V4L2_TUNER_RADIO)
 			return -EINVAL;
+		if (p->index)
+			return -EINVAL;
 		err = ops->vidioc_g_modulator(file, fh, &m);
 		if (err)
 			return err;
diff --git a/drivers/memory/Makefile b/drivers/memory/Makefile
index 42b3ce9d80f..9cce5d70ed5 100644
--- a/drivers/memory/Makefile
+++ b/drivers/memory/Makefile
@@ -2,6 +2,9 @@
 # Makefile for memory devices
 #
 
+ifeq ($(CONFIG_DDR),y)
+obj-$(CONFIG_OF)		+= of_memory.o
+endif
 obj-$(CONFIG_TI_EMIF)		+= emif.o
 obj-$(CONFIG_TEGRA20_MC)	+= tegra20-mc.o
 obj-$(CONFIG_TEGRA30_MC)	+= tegra30-mc.o
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 33a4396b24c..06d31c99e6a 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/module.h>
@@ -25,6 +26,7 @@
 #include <linux/spinlock.h>
 #include <memory/jedec_ddr.h>
 #include "emif.h"
+#include "of_memory.h"
 
 /**
  * struct emif_data - Per device static data for driver's use
@@ -49,6 +51,7 @@
  *				frequency in effect at the moment)
  * @plat_data:			Pointer to saved platform data.
  * @debugfs_root:		dentry to the root folder for EMIF in debugfs
+ * @np_ddr:			Pointer to ddr device tree node
  */
 struct emif_data {
 	u8				duplicate;
@@ -63,6 +66,7 @@ struct emif_data {
 	struct emif_regs		*curr_regs;
 	struct emif_platform_data	*plat_data;
 	struct dentry			*debugfs_root;
+	struct device_node		*np_ddr;
 };
 
 static struct emif_data *emif1;
@@ -71,6 +75,7 @@ static unsigned long	irq_state;
 static u32		t_ck; /* DDR clock period in ps */
 static LIST_HEAD(device_list);
 
+#ifdef CONFIG_DEBUG_FS
 static void do_emif_regdump_show(struct seq_file *s, struct emif_data *emif,
 	struct emif_regs *regs)
 {
@@ -162,23 +167,23 @@ static int __init_or_module emif_debugfs_init(struct emif_data *emif)
 	int		ret;
 
 	dentry = debugfs_create_dir(dev_name(emif->dev), NULL);
-	if (IS_ERR(dentry)) {
-		ret = PTR_ERR(dentry);
+	if (!dentry) {
+		ret = -ENOMEM;
 		goto err0;
 	}
 	emif->debugfs_root = dentry;
 
 	dentry = debugfs_create_file("regcache_dump", S_IRUGO,
 			emif->debugfs_root, emif, &emif_regdump_fops);
-	if (IS_ERR(dentry)) {
-		ret = PTR_ERR(dentry);
+	if (!dentry) {
+		ret = -ENOMEM;
 		goto err1;
 	}
 
 	dentry = debugfs_create_file("mr4", S_IRUGO,
 			emif->debugfs_root, emif, &emif_mr4_fops);
-	if (IS_ERR(dentry)) {
-		ret = PTR_ERR(dentry);
+	if (!dentry) {
+		ret = -ENOMEM;
 		goto err1;
 	}
 
@@ -194,6 +199,16 @@ static void __exit emif_debugfs_exit(struct emif_data *emif)
 	debugfs_remove_recursive(emif->debugfs_root);
 	emif->debugfs_root = NULL;
 }
+#else
+static inline int __init_or_module emif_debugfs_init(struct emif_data *emif)
+{
+	return 0;
+}
+
+static inline void __exit emif_debugfs_exit(struct emif_data *emif)
+{
+}
+#endif
 
 /*
  * Calculate the period of DDR clock from frequency value
@@ -1148,6 +1163,168 @@ static int is_custom_config_valid(struct emif_custom_configs *cust_cfgs,
 	return valid;
 }
 
+#if defined(CONFIG_OF)
+static void __init_or_module of_get_custom_configs(struct device_node *np_emif,
+		struct emif_data *emif)
+{
+	struct emif_custom_configs	*cust_cfgs = NULL;
+	int				len;
+	const int			*lpmode, *poll_intvl;
+
+	lpmode = of_get_property(np_emif, "low-power-mode", &len);
+	poll_intvl = of_get_property(np_emif, "temp-alert-poll-interval", &len);
+
+	if (lpmode || poll_intvl)
+		cust_cfgs = devm_kzalloc(emif->dev, sizeof(*cust_cfgs),
+			GFP_KERNEL);
+
+	if (!cust_cfgs)
+		return;
+
+	if (lpmode) {
+		cust_cfgs->mask |= EMIF_CUSTOM_CONFIG_LPMODE;
+		cust_cfgs->lpmode = *lpmode;
+		of_property_read_u32(np_emif,
+				"low-power-mode-timeout-performance",
+				&cust_cfgs->lpmode_timeout_performance);
+		of_property_read_u32(np_emif,
+				"low-power-mode-timeout-power",
+				&cust_cfgs->lpmode_timeout_power);
+		of_property_read_u32(np_emif,
+				"low-power-mode-freq-threshold",
+				&cust_cfgs->lpmode_freq_threshold);
+	}
+
+	if (poll_intvl) {
+		cust_cfgs->mask |=
+				EMIF_CUSTOM_CONFIG_TEMP_ALERT_POLL_INTERVAL;
+		cust_cfgs->temp_alert_poll_interval_ms = *poll_intvl;
+	}
+
+	if (!is_custom_config_valid(cust_cfgs, emif->dev)) {
+		devm_kfree(emif->dev, cust_cfgs);
+		return;
+	}
+
+	emif->plat_data->custom_configs = cust_cfgs;
+}
+
+static void __init_or_module of_get_ddr_info(struct device_node *np_emif,
+		struct device_node *np_ddr,
+		struct ddr_device_info *dev_info)
+{
+	u32 density = 0, io_width = 0;
+	int len;
+
+	if (of_find_property(np_emif, "cs1-used", &len))
+		dev_info->cs1_used = true;
+
+	if (of_find_property(np_emif, "cal-resistor-per-cs", &len))
+		dev_info->cal_resistors_per_cs = true;
+
+	if (of_device_is_compatible(np_ddr , "jedec,lpddr2-s4"))
+		dev_info->type = DDR_TYPE_LPDDR2_S4;
+	else if (of_device_is_compatible(np_ddr , "jedec,lpddr2-s2"))
+		dev_info->type = DDR_TYPE_LPDDR2_S2;
+
+	of_property_read_u32(np_ddr, "density", &density);
+	of_property_read_u32(np_ddr, "io-width", &io_width);
+
+	/* Convert from density in Mb to the density encoding in jedc_ddr.h */
+	if (density & (density - 1))
+		dev_info->density = 0;
+	else
+		dev_info->density = __fls(density) - 5;
+
+	/* Convert from io_width in bits to io_width encoding in jedc_ddr.h */
+	if (io_width & (io_width - 1))
+		dev_info->io_width = 0;
+	else
+		dev_info->io_width = __fls(io_width) - 1;
+}
+
+static struct emif_data * __init_or_module of_get_memory_device_details(
+		struct device_node *np_emif, struct device *dev)
+{
+	struct emif_data		*emif = NULL;
+	struct ddr_device_info		*dev_info = NULL;
+	struct emif_platform_data	*pd = NULL;
+	struct device_node		*np_ddr;
+	int				len;
+
+	np_ddr = of_parse_phandle(np_emif, "device-handle", 0);
+	if (!np_ddr)
+		goto error;
+	emif	= devm_kzalloc(dev, sizeof(struct emif_data), GFP_KERNEL);
+	pd	= devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+	dev_info = devm_kzalloc(dev, sizeof(*dev_info), GFP_KERNEL);
+
+	if (!emif || !pd || !dev_info) {
+		dev_err(dev, "%s: Out of memory!!\n",
+			__func__);
+		goto error;
+	}
+
+	emif->plat_data		= pd;
+	pd->device_info		= dev_info;
+	emif->dev		= dev;
+	emif->np_ddr		= np_ddr;
+	emif->temperature_level	= SDRAM_TEMP_NOMINAL;
+
+	if (of_device_is_compatible(np_emif, "ti,emif-4d"))
+		emif->plat_data->ip_rev = EMIF_4D;
+	else if (of_device_is_compatible(np_emif, "ti,emif-4d5"))
+		emif->plat_data->ip_rev = EMIF_4D5;
+
+	of_property_read_u32(np_emif, "phy-type", &pd->phy_type);
+
+	if (of_find_property(np_emif, "hw-caps-ll-interface", &len))
+		pd->hw_caps |= EMIF_HW_CAPS_LL_INTERFACE;
+
+	of_get_ddr_info(np_emif, np_ddr, dev_info);
+	if (!is_dev_data_valid(pd->device_info->type, pd->device_info->density,
+			pd->device_info->io_width, pd->phy_type, pd->ip_rev,
+			emif->dev)) {
+		dev_err(dev, "%s: invalid device data!!\n", __func__);
+		goto error;
+	}
+	/*
+	 * For EMIF instances other than EMIF1 see if the devices connected
+	 * are exactly same as on EMIF1(which is typically the case). If so,
+	 * mark it as a duplicate of EMIF1. This will save some memory and
+	 * computation.
+	 */
+	if (emif1 && emif1->np_ddr == np_ddr) {
+		emif->duplicate = true;
+		goto out;
+	} else if (emif1) {
+		dev_warn(emif->dev, "%s: Non-symmetric DDR geometry\n",
+			__func__);
+	}
+
+	of_get_custom_configs(np_emif, emif);
+	emif->plat_data->timings = of_get_ddr_timings(np_ddr, emif->dev,
+					emif->plat_data->device_info->type,
+					&emif->plat_data->timings_arr_size);
+
+	emif->plat_data->min_tck = of_get_min_tck(np_ddr, emif->dev);
+	goto out;
+
+error:
+	return NULL;
+out:
+	return emif;
+}
+
+#else
+
+static struct emif_data * __init_or_module of_get_memory_device_details(
+		struct device_node *np_emif, struct device *dev)
+{
+	return NULL;
+}
+#endif
+
 static struct emif_data *__init_or_module get_device_details(
 		struct platform_device *pdev)
 {
@@ -1267,7 +1444,11 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 	struct resource		*res;
 	int			irq;
 
-	emif = get_device_details(pdev);
+	if (pdev->dev.of_node)
+		emif = of_get_memory_device_details(pdev->dev.of_node, &pdev->dev);
+	else
+		emif = get_device_details(pdev);
+
 	if (!emif) {
 		pr_err("%s: error getting device data\n", __func__);
 		goto error;
@@ -1644,11 +1825,21 @@ static void __attribute__((unused)) freq_post_notify_handling(void)
 	spin_unlock_irqrestore(&emif_lock, irq_state);
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id emif_of_match[] = {
+		{ .compatible = "ti,emif-4d" },
+		{ .compatible = "ti,emif-4d5" },
+		{},
+};
+MODULE_DEVICE_TABLE(of, emif_of_match);
+#endif
+
 static struct platform_driver emif_driver = {
 	.remove		= __exit_p(emif_remove),
 	.shutdown	= emif_shutdown,
 	.driver = {
 		.name = "emif",
+		.of_match_table = of_match_ptr(emif_of_match),
 	},
 };
 
diff --git a/drivers/memory/of_memory.c b/drivers/memory/of_memory.c
new file mode 100644
index 00000000000..60074351f17
--- /dev/null
+++ b/drivers/memory/of_memory.c
@@ -0,0 +1,153 @@
+/*
+ * OpenFirmware helpers for memory drivers
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/of.h>
+#include <linux/gfp.h>
+#include <memory/jedec_ddr.h>
+#include <linux/export.h>
+
+/**
+ * of_get_min_tck() - extract min timing values for ddr
+ * @np: pointer to ddr device tree node
+ * @device: device requesting for min timing values
+ *
+ * Populates the lpddr2_min_tck structure by extracting data
+ * from device tree node. Returns a pointer to the populated
+ * structure. If any error in populating the structure, returns
+ * default min timings provided by JEDEC.
+ */
+const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
+		struct device *dev)
+{
+	int			ret = 0;
+	struct lpddr2_min_tck	*min;
+
+	min = devm_kzalloc(dev, sizeof(*min), GFP_KERNEL);
+	if (!min)
+		goto default_min_tck;
+
+	ret |= of_property_read_u32(np, "tRPab-min-tck", &min->tRPab);
+	ret |= of_property_read_u32(np, "tRCD-min-tck", &min->tRCD);
+	ret |= of_property_read_u32(np, "tWR-min-tck", &min->tWR);
+	ret |= of_property_read_u32(np, "tRASmin-min-tck", &min->tRASmin);
+	ret |= of_property_read_u32(np, "tRRD-min-tck", &min->tRRD);
+	ret |= of_property_read_u32(np, "tWTR-min-tck", &min->tWTR);
+	ret |= of_property_read_u32(np, "tXP-min-tck", &min->tXP);
+	ret |= of_property_read_u32(np, "tRTP-min-tck", &min->tRTP);
+	ret |= of_property_read_u32(np, "tCKE-min-tck", &min->tCKE);
+	ret |= of_property_read_u32(np, "tCKESR-min-tck", &min->tCKESR);
+	ret |= of_property_read_u32(np, "tFAW-min-tck", &min->tFAW);
+
+	if (ret) {
+		devm_kfree(dev, min);
+		goto default_min_tck;
+	}
+
+	return min;
+
+default_min_tck:
+	dev_warn(dev, "%s: using default min-tck values\n", __func__);
+	return &lpddr2_jedec_min_tck;
+}
+EXPORT_SYMBOL(of_get_min_tck);
+
+static int of_do_get_timings(struct device_node *np,
+		struct lpddr2_timings *tim)
+{
+	int ret;
+
+	ret = of_property_read_u32(np, "max-freq", &tim->max_freq);
+	ret |= of_property_read_u32(np, "min-freq", &tim->min_freq);
+	ret |= of_property_read_u32(np, "tRPab", &tim->tRPab);
+	ret |= of_property_read_u32(np, "tRCD", &tim->tRCD);
+	ret |= of_property_read_u32(np, "tWR", &tim->tWR);
+	ret |= of_property_read_u32(np, "tRAS-min", &tim->tRAS_min);
+	ret |= of_property_read_u32(np, "tRRD", &tim->tRRD);
+	ret |= of_property_read_u32(np, "tWTR", &tim->tWTR);
+	ret |= of_property_read_u32(np, "tXP", &tim->tXP);
+	ret |= of_property_read_u32(np, "tRTP", &tim->tRTP);
+	ret |= of_property_read_u32(np, "tCKESR", &tim->tCKESR);
+	ret |= of_property_read_u32(np, "tDQSCK-max", &tim->tDQSCK_max);
+	ret |= of_property_read_u32(np, "tFAW", &tim->tFAW);
+	ret |= of_property_read_u32(np, "tZQCS", &tim->tZQCS);
+	ret |= of_property_read_u32(np, "tZQCL", &tim->tZQCL);
+	ret |= of_property_read_u32(np, "tZQinit", &tim->tZQinit);
+	ret |= of_property_read_u32(np, "tRAS-max-ns", &tim->tRAS_max_ns);
+	ret |= of_property_read_u32(np, "tDQSCK-max-derated",
+		&tim->tDQSCK_max_derated);
+
+	return ret;
+}
+
+/**
+ * of_get_ddr_timings() - extracts the ddr timings and updates no of
+ * frequencies available.
+ * @np_ddr: Pointer to ddr device tree node
+ * @dev: Device requesting for ddr timings
+ * @device_type: Type of ddr(LPDDR2 S2/S4)
+ * @nr_frequencies: No of frequencies available for ddr
+ * (updated by this function)
+ *
+ * Populates lpddr2_timings structure by extracting data from device
+ * tree node. Returns pointer to populated structure. If any error
+ * while populating, returns default timings provided by JEDEC.
+ */
+const struct lpddr2_timings *of_get_ddr_timings(struct device_node *np_ddr,
+		struct device *dev, u32 device_type, u32 *nr_frequencies)
+{
+	struct lpddr2_timings	*timings = NULL;
+	u32			arr_sz = 0, i = 0;
+	struct device_node	*np_tim;
+	char			*tim_compat;
+
+	switch (device_type) {
+	case DDR_TYPE_LPDDR2_S2:
+	case DDR_TYPE_LPDDR2_S4:
+		tim_compat = "jedec,lpddr2-timings";
+		break;
+	default:
+		dev_warn(dev, "%s: un-supported memory type\n", __func__);
+	}
+
+	for_each_child_of_node(np_ddr, np_tim)
+		if (of_device_is_compatible(np_tim, tim_compat))
+			arr_sz++;
+
+	if (arr_sz)
+		timings = devm_kzalloc(dev, sizeof(*timings) * arr_sz,
+			GFP_KERNEL);
+
+	if (!timings)
+		goto default_timings;
+
+	for_each_child_of_node(np_ddr, np_tim) {
+		if (of_device_is_compatible(np_tim, tim_compat)) {
+			if (of_do_get_timings(np_tim, &timings[i])) {
+				devm_kfree(dev, timings);
+				goto default_timings;
+			}
+			i++;
+		}
+	}
+
+	*nr_frequencies = arr_sz;
+
+	return timings;
+
+default_timings:
+	dev_warn(dev, "%s: using default timings\n", __func__);
+	*nr_frequencies = ARRAY_SIZE(lpddr2_jedec_timings);
+	return lpddr2_jedec_timings;
+}
+EXPORT_SYMBOL(of_get_ddr_timings);
diff --git a/drivers/memory/of_memory.h b/drivers/memory/of_memory.h
new file mode 100644
index 00000000000..ef2514f553d
--- /dev/null
+++ b/drivers/memory/of_memory.h
@@ -0,0 +1,36 @@
+/*
+ * OpenFirmware helpers for memory drivers
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_MEMORY_OF_REG_H
+#define __LINUX_MEMORY_OF_REG_H
+
+#if defined(CONFIG_OF) && defined(CONFIG_DDR)
+extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
+		struct device *dev);
+extern const struct lpddr2_timings
+	*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
+	u32 device_type, u32 *nr_frequencies);
+#else
+static inline const struct lpddr2_min_tck
+	*of_get_min_tck(struct device_node *np, struct device *dev)
+{
+	return NULL;
+}
+
+static inline const struct lpddr2_timings
+	*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
+	u32 device_type, u32 *nr_frequencies)
+{
+	return NULL;
+}
+#endif /* CONFIG_OF && CONFIG_DDR */
+
+#endif /* __LINUX_MEMORY_OF_REG_ */
diff --git a/drivers/memory/tegra20-mc.c b/drivers/memory/tegra20-mc.c
index 3ed49c1c2b9..e6764bb41cb 100644
--- a/drivers/memory/tegra20-mc.c
+++ b/drivers/memory/tegra20-mc.c
@@ -57,7 +57,7 @@ static inline u32 mc_readl(struct tegra20_mc *mc, u32 offs)
 
 	if (offs < 0x24)
 		val = readl(mc->regs[0] + offs);
-	if (offs < 0x400)
+	else if (offs < 0x400)
 		val = readl(mc->regs[1] + offs - 0x3c);
 
 	return val;
@@ -65,14 +65,10 @@ static inline u32 mc_readl(struct tegra20_mc *mc, u32 offs)
 
 static inline void mc_writel(struct tegra20_mc *mc, u32 val, u32 offs)
 {
-	if (offs < 0x24) {
+	if (offs < 0x24)
 		writel(val, mc->regs[0] + offs);
-		return;
-	}
-	if (offs < 0x400) {
+	else if (offs < 0x400)
 		writel(val, mc->regs[1] + offs - 0x3c);
-		return;
-	}
 }
 
 static const char * const tegra20_mc_client[] = {
diff --git a/drivers/memory/tegra30-mc.c b/drivers/memory/tegra30-mc.c
index e56ff04eb5c..802b9ea431f 100644
--- a/drivers/memory/tegra30-mc.c
+++ b/drivers/memory/tegra30-mc.c
@@ -95,11 +95,11 @@ static inline u32 mc_readl(struct tegra30_mc *mc, u32 offs)
 
 	if (offs < 0x10)
 		val = readl(mc->regs[0] + offs);
-	if (offs < 0x1f0)
+	else if (offs < 0x1f0)
 		val = readl(mc->regs[1] + offs - 0x3c);
-	if (offs < 0x228)
+	else if (offs < 0x228)
 		val = readl(mc->regs[2] + offs - 0x200);
-	if (offs < 0x400)
+	else if (offs < 0x400)
 		val = readl(mc->regs[3] + offs - 0x284);
 
 	return val;
@@ -107,22 +107,14 @@ static inline u32 mc_readl(struct tegra30_mc *mc, u32 offs)
 
 static inline void mc_writel(struct tegra30_mc *mc, u32 val, u32 offs)
 {
-	if (offs < 0x10) {
+	if (offs < 0x10)
 		writel(val, mc->regs[0] + offs);
-		return;
-	}
-	if (offs < 0x1f0) {
+	else if (offs < 0x1f0)
 		writel(val, mc->regs[1] + offs - 0x3c);
-		return;
-	}
-	if (offs < 0x228) {
+	else if (offs < 0x228)
 		writel(val, mc->regs[2] + offs - 0x200);
-		return;
-	}
-	if (offs < 0x400) {
+	else if (offs < 0x400)
 		writel(val, mc->regs[3] + offs - 0x284);
-		return;
-	}
 }
 
 static const char * const tegra30_mc_client[] = {
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index d99db5623ac..fb69baa06ca 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1666,7 +1666,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 	if (pci_request_selected_regions(pdev, ioc->bars, "mpt")) {
 		printk(MYIOC_s_ERR_FMT "pci_request_selected_regions() with "
 		    "MEM failed\n", ioc->name);
-		return r;
+		goto out_pci_disable_device;
 	}
 
 	if (sizeof(dma_addr_t) > 4) {
@@ -1690,8 +1690,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 		} else {
 			printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
 			    ioc->name, pci_name(pdev));
-			pci_release_selected_regions(pdev, ioc->bars);
-			return r;
+			goto out_pci_release_region;
 		}
 	} else {
 		if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
@@ -1704,8 +1703,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 		} else {
 			printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
 			    ioc->name, pci_name(pdev));
-			pci_release_selected_regions(pdev, ioc->bars);
-			return r;
+			goto out_pci_release_region;
 		}
 	}
 
@@ -1735,8 +1733,8 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 	if (mem == NULL) {
 		printk(MYIOC_s_ERR_FMT ": ERROR - Unable to map adapter"
 			" memory!\n", ioc->name);
-		pci_release_selected_regions(pdev, ioc->bars);
-		return -EINVAL;
+		r = -EINVAL;
+		goto out_pci_release_region;
 	}
 	ioc->memmap = mem;
 	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "mem = %p, mem_phys = %llx\n",
@@ -1750,6 +1748,12 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 	ioc->pio_chip = (SYSIF_REGS __iomem *)port;
 
 	return 0;
+
+out_pci_release_region:
+	pci_release_selected_regions(pdev, ioc->bars);
+out_pci_disable_device:
+	pci_disable_device(pdev);
+	return r;
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
index b67a3018b13..ce229ea933d 100644
--- a/drivers/mfd/88pm800.c
+++ b/drivers/mfd/88pm800.c
@@ -470,7 +470,8 @@ static int __devinit device_800_init(struct pm80x_chip *chip,
 
 	ret =
 	    mfd_add_devices(chip->dev, 0, &onkey_devs[0],
-			    ARRAY_SIZE(onkey_devs), &onkey_resources[0], 0);
+			    ARRAY_SIZE(onkey_devs), &onkey_resources[0], 0,
+			    NULL);
 	if (ret < 0) {
 		dev_err(chip->dev, "Failed to add onkey subdev\n");
 		goto out_dev;
@@ -481,7 +482,7 @@ static int __devinit device_800_init(struct pm80x_chip *chip,
 		rtc_devs[0].platform_data = pdata->rtc;
 		rtc_devs[0].pdata_size = sizeof(struct pm80x_rtc_pdata);
 		ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
-				      ARRAY_SIZE(rtc_devs), NULL, 0);
+				      ARRAY_SIZE(rtc_devs), NULL, 0, NULL);
 		if (ret < 0) {
 			dev_err(chip->dev, "Failed to add rtc subdev\n");
 			goto out_dev;
diff --git a/drivers/mfd/88pm805.c b/drivers/mfd/88pm805.c
index 6146583589f..c20a31136f0 100644
--- a/drivers/mfd/88pm805.c
+++ b/drivers/mfd/88pm805.c
@@ -216,7 +216,8 @@ static int __devinit device_805_init(struct pm80x_chip *chip)
 	}
 
 	ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
-			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
+			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
+			      NULL);
 	if (ret < 0) {
 		dev_err(chip->dev, "Failed to add codec subdev\n");
 		goto out_codec;
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index d09918cf1b1..b73f033b2c6 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -637,7 +637,7 @@ static void __devinit device_bk_init(struct pm860x_chip *chip,
 			bk_devs[i].resources = &bk_resources[j];
 			ret = mfd_add_devices(chip->dev, 0,
 					      &bk_devs[i], 1,
-					      &bk_resources[j], 0);
+					      &bk_resources[j], 0, NULL);
 			if (ret < 0) {
 				dev_err(chip->dev, "Failed to add "
 					"backlight subdev\n");
@@ -672,7 +672,7 @@ static void __devinit device_led_init(struct pm860x_chip *chip,
 			led_devs[i].resources = &led_resources[j],
 			ret = mfd_add_devices(chip->dev, 0,
 					      &led_devs[i], 1,
-					      &led_resources[j], 0);
+					      &led_resources[j], 0, NULL);
 			if (ret < 0) {
 				dev_err(chip->dev, "Failed to add "
 					"led subdev\n");
@@ -709,7 +709,7 @@ static void __devinit device_regulator_init(struct pm860x_chip *chip,
 		regulator_devs[i].resources = &regulator_resources[seq];
 
 		ret = mfd_add_devices(chip->dev, 0, &regulator_devs[i], 1,
-				      &regulator_resources[seq], 0);
+				      &regulator_resources[seq], 0, NULL);
 		if (ret < 0) {
 			dev_err(chip->dev, "Failed to add regulator subdev\n");
 			goto out;
@@ -733,7 +733,7 @@ static void __devinit device_rtc_init(struct pm860x_chip *chip,
 	rtc_devs[0].resources = &rtc_resources[0];
 	ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
 			      ARRAY_SIZE(rtc_devs), &rtc_resources[0],
-			      chip->irq_base);
+			      chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add rtc subdev\n");
 }
@@ -752,7 +752,7 @@ static void __devinit device_touch_init(struct pm860x_chip *chip,
 	touch_devs[0].resources = &touch_resources[0];
 	ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
 			      ARRAY_SIZE(touch_devs), &touch_resources[0],
-			      chip->irq_base);
+			      chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add touch subdev\n");
 }
@@ -770,7 +770,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
 	power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
 	power_devs[0].resources = &battery_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
-			      &battery_resources[0], chip->irq_base);
+			      &battery_resources[0], chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add battery subdev\n");
 
@@ -779,7 +779,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
 	power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
 	power_devs[1].resources = &charger_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
-			      &charger_resources[0], chip->irq_base);
+			      &charger_resources[0], chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add charger subdev\n");
 
@@ -788,7 +788,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
 	power_devs[2].num_resources = ARRAY_SIZE(preg_resources);
 	power_devs[2].resources = &preg_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
-			      &preg_resources[0], chip->irq_base);
+			      &preg_resources[0], chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add preg subdev\n");
 }
@@ -802,7 +802,7 @@ static void __devinit device_onkey_init(struct pm860x_chip *chip,
 	onkey_devs[0].resources = &onkey_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
 			      ARRAY_SIZE(onkey_devs), &onkey_resources[0],
-			      chip->irq_base);
+			      chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add onkey subdev\n");
 }
@@ -815,7 +815,8 @@ static void __devinit device_codec_init(struct pm860x_chip *chip,
 	codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
 	codec_devs[0].resources = &codec_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
-			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
+			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
+			      NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add codec subdev\n");
 }
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d1facef28a6..b1a146205c0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -395,7 +395,8 @@ config MFD_TC6387XB
 
 config MFD_TC6393XB
 	bool "Support Toshiba TC6393XB"
-	depends on GPIOLIB && ARM && HAVE_CLK
+	depends on ARM && HAVE_CLK
+	select GPIOLIB
 	select MFD_CORE
 	select MFD_TMIO
 	help
diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 44a3fdbadef..f1beb4971f8 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -424,7 +424,7 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 	}
 
 	ret = mfd_add_devices(aat2870->dev, 0, aat2870_devs,
-			      ARRAY_SIZE(aat2870_devs), NULL, 0);
+			      ARRAY_SIZE(aat2870_devs), NULL, 0, NULL);
 	if (ret != 0) {
 		dev_err(aat2870->dev, "Failed to add subdev: %d\n", ret);
 		goto out_disable;
diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index 78fca2902c8..01781ae5d0d 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -946,7 +946,7 @@ static int __devinit ab3100_probe(struct i2c_client *client,
 	}
 
 	err = mfd_add_devices(&client->dev, 0, ab3100_devs,
-		ARRAY_SIZE(ab3100_devs), NULL, 0);
+			      ARRAY_SIZE(ab3100_devs), NULL, 0, NULL);
 
 	ab3100_setup_debugfs(ab3100);
 
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 626b4ecaf64..47adf800024 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -1418,25 +1418,25 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
 
 	ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
 			ARRAY_SIZE(abx500_common_devs), NULL,
-			ab8500->irq_base);
+			ab8500->irq_base, ab8500->domain);
 	if (ret)
 		goto out_freeirq;
 
 	if (is_ab9540(ab8500))
 		ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
 				ARRAY_SIZE(ab9540_devs), NULL,
-				ab8500->irq_base);
+				ab8500->irq_base, ab8500->domain);
 	else
 		ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
 				ARRAY_SIZE(ab8500_devs), NULL,
-				ab8500->irq_base);
+				ab8500->irq_base, ab8500->domain);
 	if (ret)
 		goto out_freeirq;
 
 	if (is_ab9540(ab8500) || is_ab8505(ab8500))
 		ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,
 				ARRAY_SIZE(ab9540_ab8505_devs), NULL,
-				ab8500->irq_base);
+				ab8500->irq_base, ab8500->domain);
 	if (ret)
 		goto out_freeirq;
 
@@ -1444,7 +1444,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
 		/* Add battery management devices */
 		ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
 				      ARRAY_SIZE(ab8500_bm_devs), NULL,
-				      ab8500->irq_base);
+				      ab8500->irq_base, ab8500->domain);
 		if (ret)
 			dev_err(ab8500->dev, "error adding bm devices\n");
 	}
diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index 866f95960b4..29d72a259c8 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -342,7 +342,7 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel)
 
 		 /*
 		  * Delay might be needed for ABB8500 cut 3.0, if not, remove
-		  * when hardware will be availible
+		  * when hardware will be available
 		  */
 			msleep(1);
 			break;
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index c7983e86254..1b48f209480 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -316,7 +316,7 @@ int __devinit arizona_dev_init(struct arizona *arizona)
 	}
 
 	ret = mfd_add_devices(arizona->dev, -1, early_devs,
-			      ARRAY_SIZE(early_devs), NULL, 0);
+			      ARRAY_SIZE(early_devs), NULL, 0, NULL);
 	if (ret != 0) {
 		dev_err(dev, "Failed to add early children: %d\n", ret);
 		return ret;
@@ -516,11 +516,11 @@ int __devinit arizona_dev_init(struct arizona *arizona)
 	switch (arizona->type) {
 	case WM5102:
 		ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
-				      ARRAY_SIZE(wm5102_devs), NULL, 0);
+				      ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
 		break;
 	case WM5110:
 		ret = mfd_add_devices(arizona->dev, -1, wm5110_devs,
-				      ARRAY_SIZE(wm5102_devs), NULL, 0);
+				      ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
 		break;
 	}
 
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 383421bf576..62f0883a763 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -913,18 +913,19 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
 	if (pdata->clock_rate) {
 		ds1wm_pdata.clock_rate = pdata->clock_rate;
 		ret = mfd_add_devices(&pdev->dev, pdev->id,
-			&asic3_cell_ds1wm, 1, mem, asic->irq_base);
+			&asic3_cell_ds1wm, 1, mem, asic->irq_base, NULL);
 		if (ret < 0)
 			goto out;
 	}
 
 	if (mem_sdio && (irq >= 0)) {
 		ret = mfd_add_devices(&pdev->dev, pdev->id,
-			&asic3_cell_mmc, 1, mem_sdio, irq);
+			&asic3_cell_mmc, 1, mem_sdio, irq, NULL);
 		if (ret < 0)
 			goto out;
 	}
 
+	ret = 0;
 	if (pdata->leds) {
 		int i;
 
@@ -933,7 +934,7 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
 			asic3_cell_leds[i].pdata_size = sizeof(pdata->leds[i]);
 		}
 		ret = mfd_add_devices(&pdev->dev, 0,
-			asic3_cell_leds, ASIC3_NUM_LEDS, NULL, 0);
+			asic3_cell_leds, ASIC3_NUM_LEDS, NULL, 0, NULL);
 	}
 
  out:
diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
index 3419e726de4..2b282133c72 100644
--- a/drivers/mfd/cs5535-mfd.c
+++ b/drivers/mfd/cs5535-mfd.c
@@ -149,7 +149,7 @@ static int __devinit cs5535_mfd_probe(struct pci_dev *pdev,
 	}
 
 	err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
-			ARRAY_SIZE(cs5535_mfd_cells), NULL, 0);
+			      ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
 	if (err) {
 		dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
 		goto err_disable;
diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c
index 2544910e1fd..a0a62b24621 100644
--- a/drivers/mfd/da9052-core.c
+++ b/drivers/mfd/da9052-core.c
@@ -803,7 +803,7 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
 		dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret);
 
 	ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
-			      ARRAY_SIZE(da9052_subdev_info), NULL, 0);
+			      ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
 	if (ret)
 		goto err;
 
diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c
index 82c9d645028..352c58b5a90 100644
--- a/drivers/mfd/da9052-i2c.c
+++ b/drivers/mfd/da9052-i2c.c
@@ -46,7 +46,7 @@ static int da9052_i2c_enable_multiwrite(struct da9052 *da9052)
 	return 0;
 }
 
-static struct i2c_device_id da9052_i2c_id[] = {
+static const struct i2c_device_id da9052_i2c_id[] = {
 	{"da9052", DA9052},
 	{"da9053-aa", DA9053_AA},
 	{"da9053-ba", DA9053_BA},
@@ -104,7 +104,7 @@ static int __devinit da9052_i2c_probe(struct i2c_client *client,
 		const struct of_device_id *deviceid;
 
 		deviceid = of_match_node(dialog_dt_ids, np);
-		id = (const struct i2c_device_id *)deviceid->data;
+		id = deviceid->data;
 	}
 #endif
 
diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c
index 4e2af2cb2d2..45e83a68641 100644
--- a/drivers/mfd/davinci_voicecodec.c
+++ b/drivers/mfd/davinci_voicecodec.c
@@ -129,7 +129,7 @@ static int __init davinci_vc_probe(struct platform_device *pdev)
 	cell->pdata_size = sizeof(*davinci_vc);
 
 	ret = mfd_add_devices(&pdev->dev, pdev->id, davinci_vc->cells,
-			      DAVINCI_VC_CELLS, NULL, 0);
+			      DAVINCI_VC_CELLS, NULL, 0, NULL);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "fail to register client devices\n");
 		goto fail4;
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 7040a008113..6b67edbdbd0 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -418,6 +418,9 @@ static struct {
 
 static atomic_t ac_wake_req_state = ATOMIC_INIT(0);
 
+/* Functions definition */
+static void compute_armss_rate(void);
+
 /* Spinlocks */
 static DEFINE_SPINLOCK(prcmu_lock);
 static DEFINE_SPINLOCK(clkout_lock);
@@ -517,6 +520,7 @@ static struct dsiescclk dsiescclk[3] = {
 	}
 };
 
+
 /*
 * Used by MCDE to setup all necessary PRCMU registers
 */
@@ -1013,6 +1017,7 @@ int db8500_prcmu_set_arm_opp(u8 opp)
 		(mb1_transfer.ack.arm_opp != opp))
 		r = -EIO;
 
+	compute_armss_rate();
 	mutex_unlock(&mb1_transfer.lock);
 
 	return r;
@@ -1612,6 +1617,7 @@ static unsigned long pll_rate(void __iomem *reg, unsigned long src_rate,
 	if ((branch == PLL_FIX) || ((branch == PLL_DIV) &&
 		(val & PRCM_PLL_FREQ_DIV2EN) &&
 		((reg == PRCM_PLLSOC0_FREQ) ||
+		 (reg == PRCM_PLLARM_FREQ) ||
 		 (reg == PRCM_PLLDDR_FREQ))))
 		div *= 2;
 
@@ -1661,6 +1667,39 @@ static unsigned long clock_rate(u8 clock)
 	else
 		return 0;
 }
+static unsigned long latest_armss_rate;
+static unsigned long armss_rate(void)
+{
+	return latest_armss_rate;
+}
+
+static void compute_armss_rate(void)
+{
+	u32 r;
+	unsigned long rate;
+
+	r = readl(PRCM_ARM_CHGCLKREQ);
+
+	if (r & PRCM_ARM_CHGCLKREQ_PRCM_ARM_CHGCLKREQ) {
+		/* External ARMCLKFIX clock */
+
+		rate = pll_rate(PRCM_PLLDDR_FREQ, ROOT_CLOCK_RATE, PLL_FIX);
+
+		/* Check PRCM_ARM_CHGCLKREQ divider */
+		if (!(r & PRCM_ARM_CHGCLKREQ_PRCM_ARM_DIVSEL))
+			rate /= 2;
+
+		/* Check PRCM_ARMCLKFIX_MGT divider */
+		r = readl(PRCM_ARMCLKFIX_MGT);
+		r &= PRCM_CLK_MGT_CLKPLLDIV_MASK;
+		rate /= r;
+
+	} else {/* ARM PLL */
+		rate = pll_rate(PRCM_PLLARM_FREQ, ROOT_CLOCK_RATE, PLL_DIV);
+	}
+
+	latest_armss_rate = rate;
+}
 
 static unsigned long dsiclk_rate(u8 n)
 {
@@ -1707,6 +1746,8 @@ unsigned long prcmu_clock_rate(u8 clock)
 		return pll_rate(PRCM_PLLSOC0_FREQ, ROOT_CLOCK_RATE, PLL_RAW);
 	else if (clock == PRCMU_PLLSOC1)
 		return pll_rate(PRCM_PLLSOC1_FREQ, ROOT_CLOCK_RATE, PLL_RAW);
+	else if (clock == PRCMU_ARMSS)
+		return armss_rate();
 	else if (clock == PRCMU_PLLDDR)
 		return pll_rate(PRCM_PLLDDR_FREQ, ROOT_CLOCK_RATE, PLL_RAW);
 	else if (clock == PRCMU_PLLDSI)
@@ -2693,6 +2734,7 @@ void __init db8500_prcmu_early_init(void)
 					 handle_simple_irq);
 		set_irq_flags(irq, IRQF_VALID);
 	}
+	compute_armss_rate();
 }
 
 static void __init init_prcm_registers(void)
@@ -3010,7 +3052,7 @@ static int __devinit db8500_prcmu_probe(struct platform_device *pdev)
 		prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET);
 
 	err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs,
-			ARRAY_SIZE(db8500_prcmu_devs), NULL, 0);
+			      ARRAY_SIZE(db8500_prcmu_devs), NULL, 0, NULL);
 	if (err) {
 		pr_err("prcmu: Failed to add subdevices\n");
 		return err;
diff --git a/drivers/mfd/dbx500-prcmu-regs.h b/drivers/mfd/dbx500-prcmu-regs.h
index 23108a6e316..79c76ebdba5 100644
--- a/drivers/mfd/dbx500-prcmu-regs.h
+++ b/drivers/mfd/dbx500-prcmu-regs.h
@@ -61,7 +61,8 @@
 #define PRCM_PLLARM_LOCKP_PRCM_PLLARM_LOCKP3	0x2
 
 #define PRCM_ARM_CHGCLKREQ	(_PRCMU_BASE + 0x114)
-#define PRCM_ARM_CHGCLKREQ_PRCM_ARM_CHGCLKREQ	0x1
+#define PRCM_ARM_CHGCLKREQ_PRCM_ARM_CHGCLKREQ	BIT(0)
+#define PRCM_ARM_CHGCLKREQ_PRCM_ARM_DIVSEL	BIT(16)
 
 #define PRCM_PLLARM_ENABLE	(_PRCMU_BASE + 0x98)
 #define PRCM_PLLARM_ENABLE_PRCM_PLLARM_ENABLE	0x1
@@ -140,6 +141,7 @@
 /* PRCMU clock/PLL/reset registers */
 #define PRCM_PLLSOC0_FREQ	   (_PRCMU_BASE + 0x080)
 #define PRCM_PLLSOC1_FREQ	   (_PRCMU_BASE + 0x084)
+#define PRCM_PLLARM_FREQ	   (_PRCMU_BASE + 0x088)
 #define PRCM_PLLDDR_FREQ	   (_PRCMU_BASE + 0x08C)
 #define PRCM_PLL_FREQ_D_SHIFT	0
 #define PRCM_PLL_FREQ_D_MASK	BITS(0, 7)
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 43a76c41cfc..db662e2dcfa 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -202,7 +202,7 @@ static void pcap_isr_work(struct work_struct *work)
 		}
 		local_irq_enable();
 		ezx_pcap_write(pcap, PCAP_REG_MSR, pcap->msr);
-	} while (gpio_get_value(irq_to_gpio(pcap->spi->irq)));
+	} while (gpio_get_value(pdata->gpio));
 }
 
 static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc)
diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c
index 04c7093d649..9e5453d21a6 100644
--- a/drivers/mfd/htc-pasic3.c
+++ b/drivers/mfd/htc-pasic3.c
@@ -168,7 +168,7 @@ static int __init pasic3_probe(struct platform_device *pdev)
 		/* the first 5 PASIC3 registers control the DS1WM */
 		ds1wm_resources[0].end = (5 << asic->bus_shift) - 1;
 		ret = mfd_add_devices(&pdev->dev, pdev->id,
-				&ds1wm_cell, 1, r, irq);
+				      &ds1wm_cell, 1, r, irq, NULL);
 		if (ret < 0)
 			dev_warn(dev, "failed to register DS1WM\n");
 	}
@@ -176,7 +176,8 @@ static int __init pasic3_probe(struct platform_device *pdev)
 	if (pdata && pdata->led_pdata) {
 		led_cell.platform_data = pdata->led_pdata;
 		led_cell.pdata_size = sizeof(struct pasic3_leds_machinfo);
-		ret = mfd_add_devices(&pdev->dev, pdev->id, &led_cell, 1, r, 0);
+		ret = mfd_add_devices(&pdev->dev, pdev->id, &led_cell, 1, r,
+				      0, NULL);
 		if (ret < 0)
 			dev_warn(dev, "failed to register LED device\n");
 	}
diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c
index 59df5584cb5..266bdc5bd96 100644
--- a/drivers/mfd/intel_msic.c
+++ b/drivers/mfd/intel_msic.c
@@ -344,13 +344,13 @@ static int __devinit intel_msic_init_devices(struct intel_msic *msic)
 			continue;
 
 		ret = mfd_add_devices(&pdev->dev, -1, &msic_devs[i], 1, NULL,
-				      pdata->irq[i]);
+				      pdata->irq[i], NULL);
 		if (ret)
 			goto fail;
 	}
 
 	ret = mfd_add_devices(&pdev->dev, 0, msic_other_devs,
-			      ARRAY_SIZE(msic_other_devs), NULL, 0);
+			      ARRAY_SIZE(msic_other_devs), NULL, 0, NULL);
 	if (ret)
 		goto fail;
 
diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c
index 2ea99989551..965c4801df8 100644
--- a/drivers/mfd/janz-cmodio.c
+++ b/drivers/mfd/janz-cmodio.c
@@ -147,7 +147,7 @@ static int __devinit cmodio_probe_submodules(struct cmodio_device *priv)
 	}
 
 	return mfd_add_devices(&pdev->dev, 0, priv->cells,
-			       num_probed, NULL, pdev->irq);
+			       num_probed, NULL, pdev->irq, NULL);
 }
 
 /*
diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index 87662a17dec..c6b6d7dda51 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -287,7 +287,8 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev)
 	writeb(0xff, adc->base + JZ_REG_ADC_CTRL);
 
 	ret = mfd_add_devices(&pdev->dev, 0, jz4740_adc_cells,
-		ARRAY_SIZE(jz4740_adc_cells), mem_base, irq_base);
+			      ARRAY_SIZE(jz4740_adc_cells), mem_base,
+			      irq_base, NULL);
 	if (ret < 0)
 		goto err_clk_put;
 
diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c
index 0b2879b87fd..24212f45b20 100644
--- a/drivers/mfd/lm3533-core.c
+++ b/drivers/mfd/lm3533-core.c
@@ -393,7 +393,8 @@ static int __devinit lm3533_device_als_init(struct lm3533 *lm3533)
 	lm3533_als_devs[0].platform_data = pdata->als;
 	lm3533_als_devs[0].pdata_size = sizeof(*pdata->als);
 
-	ret = mfd_add_devices(lm3533->dev, 0, lm3533_als_devs, 1, NULL, 0);
+	ret = mfd_add_devices(lm3533->dev, 0, lm3533_als_devs, 1, NULL,
+			      0, NULL);
 	if (ret) {
 		dev_err(lm3533->dev, "failed to add ALS device\n");
 		return ret;
@@ -422,7 +423,7 @@ static int __devinit lm3533_device_bl_init(struct lm3533 *lm3533)
 	}
 
 	ret = mfd_add_devices(lm3533->dev, 0, lm3533_bl_devs,
-					pdata->num_backlights, NULL, 0);
+			      pdata->num_backlights, NULL, 0, NULL);
 	if (ret) {
 		dev_err(lm3533->dev, "failed to add backlight devices\n");
 		return ret;
@@ -451,7 +452,7 @@ static int __devinit lm3533_device_led_init(struct lm3533 *lm3533)
 	}
 
 	ret = mfd_add_devices(lm3533->dev, 0, lm3533_led_devs,
-						pdata->num_leds, NULL, 0);
+			      pdata->num_leds, NULL, 0, NULL);
 	if (ret) {
 		dev_err(lm3533->dev, "failed to add LED devices\n");
 		return ret;
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 027cc8f8613..092ad4b44b6 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -750,7 +750,7 @@ gpe0_done:
 
 	lpc_ich_finalize_cell(&lpc_ich_cells[LPC_GPIO], id);
 	ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_GPIO],
-				1, NULL, 0);
+			      1, NULL, 0, NULL);
 
 gpio_done:
 	if (acpi_conflict)
@@ -765,7 +765,6 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev,
 	u32 base_addr_cfg;
 	u32 base_addr;
 	int ret;
-	bool acpi_conflict = false;
 	struct resource *res;
 
 	/* Setup power management base register */
@@ -780,20 +779,11 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev,
 	res = wdt_io_res(ICH_RES_IO_TCO);
 	res->start = base_addr + ACPIBASE_TCO_OFF;
 	res->end = base_addr + ACPIBASE_TCO_END;
-	ret = acpi_check_resource_conflict(res);
-	if (ret) {
-		acpi_conflict = true;
-		goto wdt_done;
-	}
 
 	res = wdt_io_res(ICH_RES_IO_SMI);
 	res->start = base_addr + ACPIBASE_SMI_OFF;
 	res->end = base_addr + ACPIBASE_SMI_END;
-	ret = acpi_check_resource_conflict(res);
-	if (ret) {
-		acpi_conflict = true;
-		goto wdt_done;
-	}
+
 	lpc_ich_enable_acpi_space(dev);
 
 	/*
@@ -813,21 +803,13 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev,
 		res = wdt_mem_res(ICH_RES_MEM_GCS);
 		res->start = base_addr + ACPIBASE_GCS_OFF;
 		res->end = base_addr + ACPIBASE_GCS_END;
-		ret = acpi_check_resource_conflict(res);
-		if (ret) {
-			acpi_conflict = true;
-			goto wdt_done;
-		}
 	}
 
 	lpc_ich_finalize_cell(&lpc_ich_cells[LPC_WDT], id);
 	ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_WDT],
-				1, NULL, 0);
+			      1, NULL, 0, NULL);
 
 wdt_done:
-	if (acpi_conflict)
-		pr_warn("Resource conflict(s) found affecting %s\n",
-				lpc_ich_cells[LPC_WDT].name);
 	return ret;
 }
 
diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c
index 9f20abc5e39..f6b9c5c96b2 100644
--- a/drivers/mfd/lpc_sch.c
+++ b/drivers/mfd/lpc_sch.c
@@ -127,7 +127,8 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev,
 		lpc_sch_cells[i].id = id->device;
 
 	ret = mfd_add_devices(&dev->dev, 0,
-			lpc_sch_cells, ARRAY_SIZE(lpc_sch_cells), NULL, 0);
+			      lpc_sch_cells, ARRAY_SIZE(lpc_sch_cells), NULL,
+			      0, NULL);
 	if (ret)
 		goto out_dev;
 
@@ -153,7 +154,8 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev,
 			tunnelcreek_cells[i].id = id->device;
 
 		ret = mfd_add_devices(&dev->dev, 0, tunnelcreek_cells,
-			ARRAY_SIZE(tunnelcreek_cells), NULL, 0);
+				      ARRAY_SIZE(tunnelcreek_cells), NULL,
+				      0, NULL);
 	}
 
 	return ret;
diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index c03e12b5192..d9e24c849a0 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -126,7 +126,7 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
 	max77686_irq_init(max77686);
 
 	ret = mfd_add_devices(max77686->dev, -1, max77686_devs,
-			      ARRAY_SIZE(max77686_devs), NULL, 0);
+			      ARRAY_SIZE(max77686_devs), NULL, 0, NULL);
 
 	if (ret < 0)
 		goto err_mfd;
diff --git a/drivers/mfd/max77693-irq.c b/drivers/mfd/max77693-irq.c
index 2b403569e0a..1029d018c73 100644
--- a/drivers/mfd/max77693-irq.c
+++ b/drivers/mfd/max77693-irq.c
@@ -137,6 +137,9 @@ static void max77693_irq_mask(struct irq_data *data)
 	const struct max77693_irq_data *irq_data =
 				irq_to_max77693_irq(max77693, data->irq);
 
+	if (irq_data->group >= MAX77693_IRQ_GROUP_NR)
+		return;
+
 	if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3)
 		max77693->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
 	else
@@ -149,6 +152,9 @@ static void max77693_irq_unmask(struct irq_data *data)
 	const struct max77693_irq_data *irq_data =
 	    irq_to_max77693_irq(max77693, data->irq);
 
+	if (irq_data->group >= MAX77693_IRQ_GROUP_NR)
+		return;
+
 	if (irq_data->group >= MUIC_INT1 && irq_data->group <= MUIC_INT3)
 		max77693->irq_masks_cur[irq_data->group] |= irq_data->mask;
 	else
@@ -200,7 +206,7 @@ static irqreturn_t max77693_irq_thread(int irq, void *data)
 
 	if (irq_src & MAX77693_IRQSRC_MUIC)
 		/* MUIC INT1 ~ INT3 */
-		max77693_bulk_read(max77693->regmap, MAX77693_MUIC_REG_INT1,
+		max77693_bulk_read(max77693->regmap_muic, MAX77693_MUIC_REG_INT1,
 			MAX77693_NUM_IRQ_MUIC_REGS, &irq_reg[MUIC_INT1]);
 
 	/* Apply masking */
@@ -255,7 +261,8 @@ int max77693_irq_init(struct max77693_dev *max77693)
 {
 	struct irq_domain *domain;
 	int i;
-	int ret;
+	int ret = 0;
+	u8 intsrc_mask;
 
 	mutex_init(&max77693->irqlock);
 
@@ -287,19 +294,38 @@ int max77693_irq_init(struct max77693_dev *max77693)
 					&max77693_irq_domain_ops, max77693);
 	if (!domain) {
 		dev_err(max77693->dev, "could not create irq domain\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto err_irq;
 	}
 	max77693->irq_domain = domain;
 
+	/* Unmask max77693 interrupt */
+	ret = max77693_read_reg(max77693->regmap,
+			MAX77693_PMIC_REG_INTSRC_MASK, &intsrc_mask);
+	if (ret < 0) {
+		dev_err(max77693->dev, "fail to read PMIC register\n");
+		goto err_irq;
+	}
+
+	intsrc_mask &= ~(MAX77693_IRQSRC_CHG);
+	intsrc_mask &= ~(MAX77693_IRQSRC_FLASH);
+	intsrc_mask &= ~(MAX77693_IRQSRC_MUIC);
+	ret = max77693_write_reg(max77693->regmap,
+			MAX77693_PMIC_REG_INTSRC_MASK, intsrc_mask);
+	if (ret < 0) {
+		dev_err(max77693->dev, "fail to write PMIC register\n");
+		goto err_irq;
+	}
+
 	ret = request_threaded_irq(max77693->irq, NULL, max77693_irq_thread,
 				   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				   "max77693-irq", max77693);
-
 	if (ret)
 		dev_err(max77693->dev, "Failed to request IRQ %d: %d\n",
 			max77693->irq, ret);
 
-	return 0;
+err_irq:
+	return ret;
 }
 
 void max77693_irq_exit(struct max77693_dev *max77693)
diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index a1811cb50ec..cc5155e2049 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -152,6 +152,20 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 	max77693->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
 	i2c_set_clientdata(max77693->haptic, max77693);
 
+	/*
+	 * Initialize register map for MUIC device because use regmap-muic
+	 * instance of MUIC device when irq of max77693 is initialized
+	 * before call max77693-muic probe() function.
+	 */
+	max77693->regmap_muic = devm_regmap_init_i2c(max77693->muic,
+					 &max77693_regmap_config);
+	if (IS_ERR(max77693->regmap_muic)) {
+		ret = PTR_ERR(max77693->regmap_muic);
+		dev_err(max77693->dev,
+			"failed to allocate register map: %d\n", ret);
+		goto err_regmap;
+	}
+
 	ret = max77693_irq_init(max77693);
 	if (ret < 0)
 		goto err_irq;
@@ -159,7 +173,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 	pm_runtime_set_active(max77693->dev);
 
 	ret = mfd_add_devices(max77693->dev, -1, max77693_devs,
-			ARRAY_SIZE(max77693_devs), NULL, 0);
+			      ARRAY_SIZE(max77693_devs), NULL, 0, NULL);
 	if (ret < 0)
 		goto err_mfd;
 
diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c
index 825a7f06d9b..ee53757beca 100644
--- a/drivers/mfd/max8925-core.c
+++ b/drivers/mfd/max8925-core.c
@@ -598,7 +598,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip,
 
 	ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
 			      ARRAY_SIZE(rtc_devs),
-			      &rtc_resources[0], chip->irq_base);
+			      &rtc_resources[0], chip->irq_base, NULL);
 	if (ret < 0) {
 		dev_err(chip->dev, "Failed to add rtc subdev\n");
 		goto out;
@@ -606,7 +606,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip,
 
 	ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
 			      ARRAY_SIZE(onkey_devs),
-			      &onkey_resources[0], 0);
+			      &onkey_resources[0], 0, NULL);
 	if (ret < 0) {
 		dev_err(chip->dev, "Failed to add onkey subdev\n");
 		goto out_dev;
@@ -615,7 +615,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip,
 	if (pdata) {
 		ret = mfd_add_devices(chip->dev, 0, &regulator_devs[0],
 				      ARRAY_SIZE(regulator_devs),
-				      &regulator_resources[0], 0);
+				      &regulator_resources[0], 0, NULL);
 		if (ret < 0) {
 			dev_err(chip->dev, "Failed to add regulator subdev\n");
 			goto out_dev;
@@ -625,7 +625,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip,
 	if (pdata && pdata->backlight) {
 		ret = mfd_add_devices(chip->dev, 0, &backlight_devs[0],
 				      ARRAY_SIZE(backlight_devs),
-				      &backlight_resources[0], 0);
+				      &backlight_resources[0], 0, NULL);
 		if (ret < 0) {
 			dev_err(chip->dev, "Failed to add backlight subdev\n");
 			goto out_dev;
@@ -635,7 +635,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip,
 	if (pdata && pdata->power) {
 		ret = mfd_add_devices(chip->dev, 0, &power_devs[0],
 					ARRAY_SIZE(power_devs),
-					&power_supply_resources[0], 0);
+				      &power_supply_resources[0], 0, NULL);
 		if (ret < 0) {
 			dev_err(chip->dev, "Failed to add power supply "
 				"subdev\n");
@@ -646,7 +646,7 @@ int __devinit max8925_device_init(struct max8925_chip *chip,
 	if (pdata && pdata->touch) {
 		ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
 				      ARRAY_SIZE(touch_devs),
-				      &touch_resources[0], 0);
+				      &touch_resources[0], 0, NULL);
 		if (ret < 0) {
 			dev_err(chip->dev, "Failed to add touch subdev\n");
 			goto out_dev;
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index 10b629c245b..f123517065e 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -160,7 +160,7 @@ static int max8997_i2c_probe(struct i2c_client *i2c,
 
 	mfd_add_devices(max8997->dev, -1, max8997_devs,
 			ARRAY_SIZE(max8997_devs),
-			NULL, 0);
+			NULL, 0, NULL);
 
 	/*
 	 * TODO: enable others (flash, muic, rtc, battery, ...) and
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index 6ef56d28c05..d7218cc9094 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -161,13 +161,13 @@ static int max8998_i2c_probe(struct i2c_client *i2c,
 	switch (id->driver_data) {
 	case TYPE_LP3974:
 		ret = mfd_add_devices(max8998->dev, -1,
-				lp3974_devs, ARRAY_SIZE(lp3974_devs),
-				NULL, 0);
+				      lp3974_devs, ARRAY_SIZE(lp3974_devs),
+				      NULL, 0, NULL);
 		break;
 	case TYPE_MAX8998:
 		ret = mfd_add_devices(max8998->dev, -1,
-				max8998_devs, ARRAY_SIZE(max8998_devs),
-				NULL, 0);
+				      max8998_devs, ARRAY_SIZE(max8998_devs),
+				      NULL, 0, NULL);
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index b801dc72f04..1ec79b54bd2 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -612,7 +612,7 @@ static int mc13xxx_add_subdevice_pdata(struct mc13xxx *mc13xxx,
 	if (!cell.name)
 		return -ENOMEM;
 
-	return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0);
+	return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0, NULL);
 }
 
 static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format)
diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
index c54e244ca0c..f99d6299ec2 100644
--- a/drivers/mfd/mcp-sa11x0.c
+++ b/drivers/mfd/mcp-sa11x0.c
@@ -24,7 +24,7 @@
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
-#include <mach/mcp.h>
+#include <linux/platform_data/mfd-mcp-sa11x0.h>
 
 #define DRIVER_NAME "sa11x0-mcp"
 
diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c
index cb4910ac4d1..55d58998141 100644
--- a/drivers/mfd/menelaus.c
+++ b/drivers/mfd/menelaus.c
@@ -1259,7 +1259,7 @@ static int menelaus_probe(struct i2c_client *client,
 	return 0;
 fail2:
 	free_irq(client->irq, menelaus);
-	flush_work_sync(&menelaus->work);
+	flush_work(&menelaus->work);
 fail1:
 	kfree(menelaus);
 	return err;
@@ -1270,7 +1270,7 @@ static int __exit menelaus_remove(struct i2c_client *client)
 	struct menelaus_chip	*menelaus = i2c_get_clientdata(client);
 
 	free_irq(client->irq, menelaus);
-	flush_work_sync(&menelaus->work);
+	flush_work(&menelaus->work);
 	kfree(menelaus);
 	the_menelaus = NULL;
 	return 0;
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 0c3a01cde2f..f8b77711ad2 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -74,12 +74,11 @@ static int mfd_platform_add_cell(struct platform_device *pdev,
 static int mfd_add_device(struct device *parent, int id,
 			  const struct mfd_cell *cell,
 			  struct resource *mem_base,
-			  int irq_base)
+			  int irq_base, struct irq_domain *domain)
 {
 	struct resource *res;
 	struct platform_device *pdev;
 	struct device_node *np = NULL;
-	struct irq_domain *domain = NULL;
 	int ret = -ENOMEM;
 	int r;
 
@@ -97,7 +96,6 @@ static int mfd_add_device(struct device *parent, int id,
 		for_each_child_of_node(parent->of_node, np) {
 			if (of_device_is_compatible(np, cell->of_compatible)) {
 				pdev->dev.of_node = np;
-				domain = irq_find_host(parent->of_node);
 				break;
 			}
 		}
@@ -177,7 +175,7 @@ fail_alloc:
 int mfd_add_devices(struct device *parent, int id,
 		    struct mfd_cell *cells, int n_devs,
 		    struct resource *mem_base,
-		    int irq_base)
+		    int irq_base, struct irq_domain *domain)
 {
 	int i;
 	int ret = 0;
@@ -191,7 +189,8 @@ int mfd_add_devices(struct device *parent, int id,
 	for (i = 0; i < n_devs; i++) {
 		atomic_set(&cnts[i], 0);
 		cells[i].usage_count = &cnts[i];
-		ret = mfd_add_device(parent, id, cells + i, mem_base, irq_base);
+		ret = mfd_add_device(parent, id, cells + i, mem_base,
+				     irq_base, domain);
 		if (ret)
 			break;
 	}
@@ -247,7 +246,8 @@ int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
 	for (i = 0; i < n_clones; i++) {
 		cell_entry.name = clones[i];
 		/* don't give up if a single call fails; just report error */
-		if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0))
+		if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0,
+				   NULL))
 			dev_err(dev, "failed to create platform device '%s'\n",
 					clones[i]);
 	}
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index c4a69f193a1..a345f9bb7b4 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -453,7 +453,8 @@ static int __devinit palmas_i2c_probe(struct i2c_client *i2c,
 
 	ret = mfd_add_devices(palmas->dev, -1,
 			      children, ARRAY_SIZE(palmas_children),
-			      NULL, regmap_irq_chip_get_base(palmas->irq_data));
+			      NULL, regmap_irq_chip_get_base(palmas->irq_data),
+			      NULL);
 	kfree(children);
 
 	if (ret < 0)
diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c
index cdc1df7fa0e..ff61efc76ce 100644
--- a/drivers/mfd/rc5t583.c
+++ b/drivers/mfd/rc5t583.c
@@ -281,7 +281,7 @@ static int __devinit rc5t583_i2c_probe(struct i2c_client *i2c,
 
 	if (i2c->irq) {
 		ret = rc5t583_irq_init(rc5t583, i2c->irq, pdata->irq_base);
-		/* Still continue with waring if irq init fails */
+		/* Still continue with warning, if irq init fails */
 		if (ret)
 			dev_warn(&i2c->dev, "IRQ init failed: %d\n", ret);
 		else
@@ -289,7 +289,7 @@ static int __devinit rc5t583_i2c_probe(struct i2c_client *i2c,
 	}
 
 	ret = mfd_add_devices(rc5t583->dev, -1, rc5t583_subdevs,
-			ARRAY_SIZE(rc5t583_subdevs), NULL, 0);
+			      ARRAY_SIZE(rc5t583_subdevs), NULL, 0, NULL);
 	if (ret) {
 		dev_err(&i2c->dev, "add mfd devices failed: %d\n", ret);
 		goto err_add_devs;
diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c
index 685d61e431a..fbabc3cbe35 100644
--- a/drivers/mfd/rdc321x-southbridge.c
+++ b/drivers/mfd/rdc321x-southbridge.c
@@ -1,5 +1,5 @@
 /*
- * RDC321x MFD southbrige driver
+ * RDC321x MFD southbridge driver
  *
  * Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org>
  * Copyright (C) 2010 Bernhard Loos <bernhardloos@googlemail.com>
@@ -87,7 +87,8 @@ static int __devinit rdc321x_sb_probe(struct pci_dev *pdev,
 	rdc321x_wdt_pdata.sb_pdev = pdev;
 
 	return mfd_add_devices(&pdev->dev, -1,
-		rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), NULL, 0);
+			       rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells),
+			       NULL, 0, NULL);
 }
 
 static void __devexit rdc321x_sb_remove(struct pci_dev *pdev)
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 2988efde11e..49d361a618d 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -141,19 +141,19 @@ static int sec_pmic_probe(struct i2c_client *i2c,
 	switch (sec_pmic->device_type) {
 	case S5M8751X:
 		ret = mfd_add_devices(sec_pmic->dev, -1, s5m8751_devs,
-					ARRAY_SIZE(s5m8751_devs), NULL, 0);
+				      ARRAY_SIZE(s5m8751_devs), NULL, 0, NULL);
 		break;
 	case S5M8763X:
 		ret = mfd_add_devices(sec_pmic->dev, -1, s5m8763_devs,
-					ARRAY_SIZE(s5m8763_devs), NULL, 0);
+				      ARRAY_SIZE(s5m8763_devs), NULL, 0, NULL);
 		break;
 	case S5M8767X:
 		ret = mfd_add_devices(sec_pmic->dev, -1, s5m8767_devs,
-					ARRAY_SIZE(s5m8767_devs), NULL, 0);
+				      ARRAY_SIZE(s5m8767_devs), NULL, 0, NULL);
 		break;
 	case S2MPS11X:
 		ret = mfd_add_devices(sec_pmic->dev, -1, s2mps11_devs,
-					ARRAY_SIZE(s2mps11_devs), NULL, 0);
+				      ARRAY_SIZE(s2mps11_devs), NULL, 0, NULL);
 		break;
 	default:
 		/* If this happens the probe function is problem */
diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index d31fed07aef..d35da6820be 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -407,7 +407,7 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
 			      sta2x11_mfd_bar0,
 			      ARRAY_SIZE(sta2x11_mfd_bar0),
 			      &pdev->resource[0],
-			      0);
+			      0, NULL);
 	if (err) {
 		dev_err(&pdev->dev, "mfd_add_devices[0] failed: %d\n", err);
 		goto err_disable;
@@ -417,7 +417,7 @@ static int __devinit sta2x11_mfd_probe(struct pci_dev *pdev,
 			      sta2x11_mfd_bar1,
 			      ARRAY_SIZE(sta2x11_mfd_bar1),
 			      &pdev->resource[1],
-			      0);
+			      0, NULL);
 	if (err) {
 		dev_err(&pdev->dev, "mfd_add_devices[1] failed: %d\n", err);
 		goto err_disable;
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 2dd8d49cb30..c94f521f392 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -962,7 +962,7 @@ static int __devinit stmpe_add_device(struct stmpe *stmpe,
 				      struct mfd_cell *cell, int irq)
 {
 	return mfd_add_devices(stmpe->dev, stmpe->pdata->id, cell, 1,
-			       NULL, stmpe->irq_base + irq);
+			       NULL, stmpe->irq_base + irq, NULL);
 }
 
 static int __devinit stmpe_devices_init(struct stmpe *stmpe)
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index 2d9e8799e73..b32940ec903 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -388,7 +388,7 @@ static int t7l66xb_probe(struct platform_device *dev)
 
 	ret = mfd_add_devices(&dev->dev, dev->id,
 			      t7l66xb_cells, ARRAY_SIZE(t7l66xb_cells),
-			      iomem, t7l66xb->irq_base);
+			      iomem, t7l66xb->irq_base, NULL);
 
 	if (!ret)
 		return 0;
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 048bf0532a0..b56ba6b4329 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -262,8 +262,8 @@ static int __devinit tc3589x_device_init(struct tc3589x *tc3589x)
 
 	if (blocks & TC3589x_BLOCK_GPIO) {
 		ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_dev_gpio,
-				ARRAY_SIZE(tc3589x_dev_gpio), NULL,
-				tc3589x->irq_base);
+				      ARRAY_SIZE(tc3589x_dev_gpio), NULL,
+				      tc3589x->irq_base, NULL);
 		if (ret) {
 			dev_err(tc3589x->dev, "failed to add gpio child\n");
 			return ret;
@@ -273,8 +273,8 @@ static int __devinit tc3589x_device_init(struct tc3589x *tc3589x)
 
 	if (blocks & TC3589x_BLOCK_KEYPAD) {
 		ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_dev_keypad,
-				ARRAY_SIZE(tc3589x_dev_keypad), NULL,
-				tc3589x->irq_base);
+				      ARRAY_SIZE(tc3589x_dev_keypad), NULL,
+				      tc3589x->irq_base, NULL);
 		if (ret) {
 			dev_err(tc3589x->dev, "failed to keypad child\n");
 			return ret;
diff --git a/drivers/mfd/tc6387xb.c b/drivers/mfd/tc6387xb.c
index d20a284ad4b..413c891102f 100644
--- a/drivers/mfd/tc6387xb.c
+++ b/drivers/mfd/tc6387xb.c
@@ -192,7 +192,7 @@ static int __devinit tc6387xb_probe(struct platform_device *dev)
 	printk(KERN_INFO "Toshiba tc6387xb initialised\n");
 
 	ret = mfd_add_devices(&dev->dev, dev->id, tc6387xb_cells,
-			      ARRAY_SIZE(tc6387xb_cells), iomem, irq);
+			      ARRAY_SIZE(tc6387xb_cells), iomem, irq, NULL);
 
 	if (!ret)
 		return 0;
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 9612264f0e6..dcab026fcbb 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -700,8 +700,8 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
 	tc6393xb_cells[TC6393XB_CELL_FB].pdata_size = sizeof(*tcpd->fb_data);
 
 	ret = mfd_add_devices(&dev->dev, dev->id,
-			tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),
-			iomem, tcpd->irq_base);
+			      tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),
+			      iomem, tcpd->irq_base, NULL);
 
 	if (!ret)
 		return 0;
diff --git a/drivers/mfd/ti-ssp.c b/drivers/mfd/ti-ssp.c
index 4fb0e6c8e8f..7c3675a74f9 100644
--- a/drivers/mfd/ti-ssp.c
+++ b/drivers/mfd/ti-ssp.c
@@ -412,7 +412,7 @@ static int __devinit ti_ssp_probe(struct platform_device *pdev)
 		cells[id].data_size	= data->pdata_size;
 	}
 
-	error = mfd_add_devices(dev, 0, cells, 2, NULL, 0);
+	error = mfd_add_devices(dev, 0, cells, 2, NULL, 0, NULL);
 	if (error < 0) {
 		dev_err(dev, "cannot add mfd cells\n");
 		goto error_enable;
diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c
index a447f4ec11f..cccc626c83c 100644
--- a/drivers/mfd/timberdale.c
+++ b/drivers/mfd/timberdale.c
@@ -757,25 +757,25 @@ static int __devinit timb_probe(struct pci_dev *dev,
 		err = mfd_add_devices(&dev->dev, -1,
 			timberdale_cells_bar0_cfg0,
 			ARRAY_SIZE(timberdale_cells_bar0_cfg0),
-			&dev->resource[0], msix_entries[0].vector);
+			&dev->resource[0], msix_entries[0].vector, NULL);
 		break;
 	case TIMB_HW_VER1:
 		err = mfd_add_devices(&dev->dev, -1,
 			timberdale_cells_bar0_cfg1,
 			ARRAY_SIZE(timberdale_cells_bar0_cfg1),
-			&dev->resource[0], msix_entries[0].vector);
+			&dev->resource[0], msix_entries[0].vector, NULL);
 		break;
 	case TIMB_HW_VER2:
 		err = mfd_add_devices(&dev->dev, -1,
 			timberdale_cells_bar0_cfg2,
 			ARRAY_SIZE(timberdale_cells_bar0_cfg2),
-			&dev->resource[0], msix_entries[0].vector);
+			&dev->resource[0], msix_entries[0].vector, NULL);
 		break;
 	case TIMB_HW_VER3:
 		err = mfd_add_devices(&dev->dev, -1,
 			timberdale_cells_bar0_cfg3,
 			ARRAY_SIZE(timberdale_cells_bar0_cfg3),
-			&dev->resource[0], msix_entries[0].vector);
+			&dev->resource[0], msix_entries[0].vector, NULL);
 		break;
 	default:
 		dev_err(&dev->dev, "Uknown IP setup: %d.%d.%d\n",
@@ -792,7 +792,7 @@ static int __devinit timb_probe(struct pci_dev *dev,
 
 	err = mfd_add_devices(&dev->dev, 0,
 		timberdale_cells_bar1, ARRAY_SIZE(timberdale_cells_bar1),
-		&dev->resource[1], msix_entries[0].vector);
+		&dev->resource[1], msix_entries[0].vector, NULL);
 	if (err) {
 		dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
 		goto err_mfd2;
@@ -803,7 +803,7 @@ static int __devinit timb_probe(struct pci_dev *dev,
 		((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER3)) {
 		err = mfd_add_devices(&dev->dev, 1, timberdale_cells_bar2,
 			ARRAY_SIZE(timberdale_cells_bar2),
-			&dev->resource[2], msix_entries[0].vector);
+			&dev->resource[2], msix_entries[0].vector, NULL);
 		if (err) {
 			dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
 			goto err_mfd2;
diff --git a/drivers/mfd/tps6105x.c b/drivers/mfd/tps6105x.c
index a293b978e27..14051bdc714 100644
--- a/drivers/mfd/tps6105x.c
+++ b/drivers/mfd/tps6105x.c
@@ -188,7 +188,7 @@ static int __devinit tps6105x_probe(struct i2c_client *client,
 	}
 
 	ret = mfd_add_devices(&client->dev, 0, tps6105x_cells,
-		ARRAY_SIZE(tps6105x_cells), NULL, 0);
+			      ARRAY_SIZE(tps6105x_cells), NULL, 0, NULL);
 	if (ret)
 		goto fail;
 
diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c
index 33ba7723c96..1b203499c74 100644
--- a/drivers/mfd/tps6507x.c
+++ b/drivers/mfd/tps6507x.c
@@ -100,7 +100,7 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c,
 
 	ret = mfd_add_devices(tps6507x->dev, -1,
 			      tps6507x_devs, ARRAY_SIZE(tps6507x_devs),
-			      NULL, 0);
+			      NULL, 0, NULL);
 
 	if (ret < 0)
 		goto err;
diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c
index 80e24f4b47b..50fd87c87a1 100644
--- a/drivers/mfd/tps65090.c
+++ b/drivers/mfd/tps65090.c
@@ -292,7 +292,7 @@ static int __devinit tps65090_i2c_probe(struct i2c_client *client,
 	}
 
 	ret = mfd_add_devices(tps65090->dev, -1, tps65090s,
-		ARRAY_SIZE(tps65090s), NULL, 0);
+			      ARRAY_SIZE(tps65090s), NULL, 0, NULL);
 	if (ret) {
 		dev_err(&client->dev, "add mfd devices failed with err: %d\n",
 			ret);
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index 61c097a98f5..a95e9421b73 100644
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -24,11 +24,18 @@
 #include <linux/slab.h>
 #include <linux/regmap.h>
 #include <linux/err.h>
-#include <linux/regulator/of_regulator.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps65217.h>
 
+static struct mfd_cell tps65217s[] = {
+	{
+		.name = "tps65217-pmic",
+	},
+};
+
 /**
  * tps65217_reg_read: Read a single tps65217 register.
  *
@@ -133,83 +140,48 @@ int tps65217_clear_bits(struct tps65217 *tps, unsigned int reg,
 }
 EXPORT_SYMBOL_GPL(tps65217_clear_bits);
 
-#ifdef CONFIG_OF
-static struct of_regulator_match reg_matches[] = {
-	{ .name = "dcdc1", .driver_data = (void *)TPS65217_DCDC_1 },
-	{ .name = "dcdc2", .driver_data = (void *)TPS65217_DCDC_2 },
-	{ .name = "dcdc3", .driver_data = (void *)TPS65217_DCDC_3 },
-	{ .name = "ldo1", .driver_data = (void *)TPS65217_LDO_1 },
-	{ .name = "ldo2", .driver_data = (void *)TPS65217_LDO_2 },
-	{ .name = "ldo3", .driver_data = (void *)TPS65217_LDO_3 },
-	{ .name = "ldo4", .driver_data = (void *)TPS65217_LDO_4 },
-};
-
-static struct tps65217_board *tps65217_parse_dt(struct i2c_client *client)
-{
-	struct device_node *node = client->dev.of_node;
-	struct tps65217_board *pdata;
-	struct device_node *regs;
-	int count = ARRAY_SIZE(reg_matches);
-	int ret, i;
-
-	regs = of_find_node_by_name(node, "regulators");
-	if (!regs)
-		return NULL;
-
-	ret = of_regulator_match(&client->dev, regs, reg_matches, count);
-	of_node_put(regs);
-	if ((ret < 0) || (ret > count))
-		return NULL;
-
-	count = ret;
-	pdata = devm_kzalloc(&client->dev, count * sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return NULL;
-
-	for (i = 0; i < count; i++) {
-		if (!reg_matches[i].init_data || !reg_matches[i].of_node)
-			continue;
-
-		pdata->tps65217_init_data[i] = reg_matches[i].init_data;
-		pdata->of_node[i] = reg_matches[i].of_node;
-	}
-
-	return pdata;
-}
-
-static struct of_device_id tps65217_of_match[] = {
-	{ .compatible = "ti,tps65217", },
-	{ },
-};
-#else
-static struct tps65217_board *tps65217_parse_dt(struct i2c_client *client)
-{
-	return NULL;
-}
-#endif
-
 static struct regmap_config tps65217_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 };
 
+static const struct of_device_id tps65217_of_match[] = {
+	{ .compatible = "ti,tps65217", .data = (void *)TPS65217 },
+	{ /* sentinel */ },
+};
+
 static int __devinit tps65217_probe(struct i2c_client *client,
 				const struct i2c_device_id *ids)
 {
 	struct tps65217 *tps;
-	struct regulator_init_data *reg_data;
-	struct tps65217_board *pdata = client->dev.platform_data;
-	int i, ret;
 	unsigned int version;
+	unsigned int chip_id = ids->driver_data;
+	const struct of_device_id *match;
+	int ret;
 
-	if (!pdata && client->dev.of_node)
-		pdata = tps65217_parse_dt(client);
+	if (client->dev.of_node) {
+		match = of_match_device(tps65217_of_match, &client->dev);
+		if (!match) {
+			dev_err(&client->dev,
+				"Failed to find matching dt id\n");
+			return -EINVAL;
+		}
+		chip_id = (unsigned int)match->data;
+	}
+
+	if (!chip_id) {
+		dev_err(&client->dev, "id is null.\n");
+		return -ENODEV;
+	}
 
 	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
 	if (!tps)
 		return -ENOMEM;
 
-	tps->pdata = pdata;
+	i2c_set_clientdata(client, tps);
+	tps->dev = &client->dev;
+	tps->id = chip_id;
+
 	tps->regmap = devm_regmap_init_i2c(client, &tps65217_regmap_config);
 	if (IS_ERR(tps->regmap)) {
 		ret = PTR_ERR(tps->regmap);
@@ -218,8 +190,12 @@ static int __devinit tps65217_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	i2c_set_clientdata(client, tps);
-	tps->dev = &client->dev;
+	ret = mfd_add_devices(tps->dev, -1, tps65217s,
+			      ARRAY_SIZE(tps65217s), NULL, 0, NULL);
+	if (ret < 0) {
+		dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret);
+		return ret;
+	}
 
 	ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version);
 	if (ret < 0) {
@@ -232,41 +208,21 @@ static int __devinit tps65217_probe(struct i2c_client *client,
 			(version & TPS65217_CHIPID_CHIP_MASK) >> 4,
 			version & TPS65217_CHIPID_REV_MASK);
 
-	for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
-		struct platform_device *pdev;
-
-		pdev = platform_device_alloc("tps65217-pmic", i);
-		if (!pdev) {
-			dev_err(tps->dev, "Cannot create regulator %d\n", i);
-			continue;
-		}
-
-		pdev->dev.parent = tps->dev;
-		pdev->dev.of_node = pdata->of_node[i];
-		reg_data = pdata->tps65217_init_data[i];
-		platform_device_add_data(pdev, reg_data, sizeof(*reg_data));
-		tps->regulator_pdev[i] = pdev;
-
-		platform_device_add(pdev);
-	}
-
 	return 0;
 }
 
 static int __devexit tps65217_remove(struct i2c_client *client)
 {
 	struct tps65217 *tps = i2c_get_clientdata(client);
-	int i;
 
-	for (i = 0; i < TPS65217_NUM_REGULATOR; i++)
-		platform_device_unregister(tps->regulator_pdev[i]);
+	mfd_remove_devices(tps->dev);
 
 	return 0;
 }
 
 static const struct i2c_device_id tps65217_id_table[] = {
-	{"tps65217", 0xF0},
-	{/* end of list */}
+	{"tps65217", TPS65217},
+	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(i2c, tps65217_id_table);
 
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 353c3481212..345960ca2fd 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -25,6 +25,7 @@
 #include <linux/i2c.h>
 #include <linux/regmap.h>
 #include <linux/regulator/of_regulator.h>
+#include <linux/regulator/machine.h>
 
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6586x.h>
@@ -346,6 +347,7 @@ failed:
 
 #ifdef CONFIG_OF
 static struct of_regulator_match tps6586x_matches[] = {
+	{ .name = "sys",     .driver_data = (void *)TPS6586X_ID_SYS     },
 	{ .name = "sm0",     .driver_data = (void *)TPS6586X_ID_SM_0    },
 	{ .name = "sm1",     .driver_data = (void *)TPS6586X_ID_SM_1    },
 	{ .name = "sm2",     .driver_data = (void *)TPS6586X_ID_SM_2    },
@@ -369,6 +371,7 @@ static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *clien
 	struct tps6586x_platform_data *pdata;
 	struct tps6586x_subdev_info *devs;
 	struct device_node *regs;
+	const char *sys_rail_name = NULL;
 	unsigned int count;
 	unsigned int i, j;
 	int err;
@@ -391,12 +394,22 @@ static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *clien
 		return NULL;
 
 	for (i = 0, j = 0; i < num && j < count; i++) {
+		struct regulator_init_data *reg_idata;
+
 		if (!tps6586x_matches[i].init_data)
 			continue;
 
+		reg_idata  = tps6586x_matches[i].init_data;
 		devs[j].name = "tps6586x-regulator";
 		devs[j].platform_data = tps6586x_matches[i].init_data;
 		devs[j].id = (int)tps6586x_matches[i].driver_data;
+		if (devs[j].id == TPS6586X_ID_SYS)
+			sys_rail_name = reg_idata->constraints.name;
+
+		if ((devs[j].id == TPS6586X_ID_LDO_5) ||
+			(devs[j].id == TPS6586X_ID_LDO_RTC))
+			reg_idata->supply_regulator = sys_rail_name;
+
 		devs[j].of_node = tps6586x_matches[i].of_node;
 		j++;
 	}
@@ -493,7 +506,8 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client,
 	}
 
 	ret = mfd_add_devices(tps6586x->dev, -1,
-			tps6586x_cell, ARRAY_SIZE(tps6586x_cell), NULL, 0);
+			      tps6586x_cell, ARRAY_SIZE(tps6586x_cell),
+			      NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret);
 		goto err_mfd_add;
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index 1c563792c77..d3ce4d569de 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -254,7 +254,7 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c,
 
 	ret = mfd_add_devices(tps65910->dev, -1,
 			      tps65910s, ARRAY_SIZE(tps65910s),
-			      NULL, 0);
+			      NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
 		return ret;
diff --git a/drivers/mfd/tps65911-comparator.c b/drivers/mfd/tps65911-comparator.c
index 5a62e6bf89a..0b6e361432c 100644
--- a/drivers/mfd/tps65911-comparator.c
+++ b/drivers/mfd/tps65911-comparator.c
@@ -136,7 +136,7 @@ static __devinit int tps65911_comparator_probe(struct platform_device *pdev)
 
 	ret = comp_threshold_set(tps65910, COMP2, pdata->vmbch2_threshold);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "cannot set COMP2 theshold\n");
+		dev_err(&pdev->dev, "cannot set COMP2 threshold\n");
 		return ret;
 	}
 
diff --git a/drivers/mfd/tps65912-core.c b/drivers/mfd/tps65912-core.c
index 74fd8cb5f37..4658b5bdcd8 100644
--- a/drivers/mfd/tps65912-core.c
+++ b/drivers/mfd/tps65912-core.c
@@ -146,7 +146,7 @@ int tps65912_device_init(struct tps65912 *tps65912)
 
 	ret = mfd_add_devices(tps65912->dev, -1,
 			      tps65912s, ARRAY_SIZE(tps65912s),
-			      NULL, 0);
+			      NULL, 0, NULL);
 	if (ret < 0)
 		goto err;
 
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 1c32afed28a..9d3a0bc1a65 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1132,12 +1132,7 @@ static void clocks_init(struct device *dev,
 	u32 rate;
 	u8 ctrl = HFCLK_FREQ_26_MHZ;
 
-#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
-	if (cpu_is_omap2430())
-		osc = clk_get(dev, "osc_ck");
-	else
-		osc = clk_get(dev, "osc_sys_ck");
-
+	osc = clk_get(dev, "fck");
 	if (IS_ERR(osc)) {
 		printk(KERN_WARNING "Skipping twl internal clock init and "
 				"using bootloader value (unknown osc rate)\n");
@@ -1147,18 +1142,6 @@ static void clocks_init(struct device *dev,
 	rate = clk_get_rate(osc);
 	clk_put(osc);
 
-#else
-	/* REVISIT for non-OMAP systems, pass the clock rate from
-	 * board init code, using platform_data.
-	 */
-	osc = ERR_PTR(-EIO);
-
-	printk(KERN_WARNING "Skipping twl internal clock init and "
-	       "using bootloader value (unknown osc rate)\n");
-
-	return;
-#endif
-
 	switch (rate) {
 	case 19200000:
 		ctrl = HFCLK_FREQ_19p2_MHZ;
@@ -1220,10 +1203,23 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
 	struct twl4030_platform_data	*pdata = client->dev.platform_data;
 	struct device_node		*node = client->dev.of_node;
+	struct platform_device		*pdev;
 	int				irq_base = 0;
 	int				status;
 	unsigned			i, num_slaves;
 
+	pdev = platform_device_alloc(DRIVER_NAME, -1);
+	if (!pdev) {
+		dev_err(&client->dev, "can't alloc pdev\n");
+		return -ENOMEM;
+	}
+
+	status = platform_device_add(pdev);
+	if (status) {
+		platform_device_put(pdev);
+		return status;
+	}
+
 	if (node && !pdata) {
 		/*
 		 * XXX: Temporary pdata until the information is correctly
@@ -1232,23 +1228,30 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		pdata = devm_kzalloc(&client->dev,
 				     sizeof(struct twl4030_platform_data),
 				     GFP_KERNEL);
-		if (!pdata)
-			return -ENOMEM;
+		if (!pdata) {
+			status = -ENOMEM;
+			goto free;
+		}
 	}
 
 	if (!pdata) {
 		dev_dbg(&client->dev, "no platform data?\n");
-		return -EINVAL;
+		status = -EINVAL;
+		goto free;
 	}
 
+	platform_set_drvdata(pdev, pdata);
+
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
 		dev_dbg(&client->dev, "can't talk I2C?\n");
-		return -EIO;
+		status = -EIO;
+		goto free;
 	}
 
 	if (inuse) {
 		dev_dbg(&client->dev, "driver is already in use\n");
-		return -EBUSY;
+		status = -EBUSY;
+		goto free;
 	}
 
 	if ((id->driver_data) & TWL6030_CLASS) {
@@ -1283,7 +1286,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	inuse = true;
 
 	/* setup clock framework */
-	clocks_init(&client->dev, pdata->clock);
+	clocks_init(&pdev->dev, pdata->clock);
 
 	/* read TWL IDCODE Register */
 	if (twl_id == TWL4030_CLASS_ID) {
@@ -1333,6 +1336,9 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 fail:
 	if (status < 0)
 		twl_remove(client);
+free:
+	if (status < 0)
+		platform_device_unregister(pdev);
 
 	return status;
 }
diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c
index 838ce4eb444..77c9acb1458 100644
--- a/drivers/mfd/twl4030-audio.c
+++ b/drivers/mfd/twl4030-audio.c
@@ -223,7 +223,7 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev)
 
 	if (childs)
 		ret = mfd_add_devices(&pdev->dev, pdev->id, audio->cells,
-				      childs, NULL, 0);
+				      childs, NULL, 0, NULL);
 	else {
 		dev_err(&pdev->dev, "No platform data found for childs\n");
 		ret = -ENODEV;
diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c
index b0fad0ffca5..3dca5c195a2 100644
--- a/drivers/mfd/twl6040-core.c
+++ b/drivers/mfd/twl6040-core.c
@@ -632,7 +632,7 @@ static int __devinit twl6040_probe(struct i2c_client *client,
 	}
 
 	ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
-			      NULL, 0);
+			      NULL, 0, NULL);
 	if (ret)
 		goto mfd_err;
 
diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c
index 872aff21e4b..b9a636d44c7 100644
--- a/drivers/mfd/vx855.c
+++ b/drivers/mfd/vx855.c
@@ -102,7 +102,7 @@ static __devinit int vx855_probe(struct pci_dev *pdev,
 	vx855_gpio_resources[1].end = vx855_gpio_resources[1].start + 3;
 
 	ret = mfd_add_devices(&pdev->dev, -1, vx855_cells, ARRAY_SIZE(vx855_cells),
-			NULL, 0);
+			NULL, 0, NULL);
 
 	/* we always return -ENODEV here in order to enable other
 	 * drivers like old, not-yet-platform_device ported i2c-viapro */
diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c
index f39b756df56..86e0e4309fc 100644
--- a/drivers/mfd/wl1273-core.c
+++ b/drivers/mfd/wl1273-core.c
@@ -241,7 +241,7 @@ static int __devinit wl1273_core_probe(struct i2c_client *client,
 		__func__, children);
 
 	r = mfd_add_devices(&client->dev, -1, core->cells,
-			    children, NULL, 0);
+			    children, NULL, 0, NULL);
 	if (r)
 		goto err;
 
diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index 946698fd2dc..30173103594 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -1813,27 +1813,27 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
 	case WM8310:
 		ret = mfd_add_devices(wm831x->dev, wm831x_num,
 				      wm8310_devs, ARRAY_SIZE(wm8310_devs),
-				      NULL, 0);
+				      NULL, 0, NULL);
 		break;
 
 	case WM8311:
 		ret = mfd_add_devices(wm831x->dev, wm831x_num,
 				      wm8311_devs, ARRAY_SIZE(wm8311_devs),
-				      NULL, 0);
+				      NULL, 0, NULL);
 		if (!pdata || !pdata->disable_touch)
 			mfd_add_devices(wm831x->dev, wm831x_num,
 					touch_devs, ARRAY_SIZE(touch_devs),
-					NULL, 0);
+					NULL, 0, NULL);
 		break;
 
 	case WM8312:
 		ret = mfd_add_devices(wm831x->dev, wm831x_num,
 				      wm8312_devs, ARRAY_SIZE(wm8312_devs),
-				      NULL, 0);
+				      NULL, 0, NULL);
 		if (!pdata || !pdata->disable_touch)
 			mfd_add_devices(wm831x->dev, wm831x_num,
 					touch_devs, ARRAY_SIZE(touch_devs),
-					NULL, 0);
+					NULL, 0, NULL);
 		break;
 
 	case WM8320:
@@ -1842,7 +1842,7 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
 	case WM8326:
 		ret = mfd_add_devices(wm831x->dev, wm831x_num,
 				      wm8320_devs, ARRAY_SIZE(wm8320_devs),
-				      NULL, 0);
+				      NULL, 0, NULL);
 		break;
 
 	default:
@@ -1867,7 +1867,7 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
 	if (ret & WM831X_XTAL_ENA) {
 		ret = mfd_add_devices(wm831x->dev, wm831x_num,
 				      rtc_devs, ARRAY_SIZE(rtc_devs),
-				      NULL, 0);
+				      NULL, 0, NULL);
 		if (ret != 0) {
 			dev_err(wm831x->dev, "Failed to add RTC: %d\n", ret);
 			goto err_irq;
@@ -1880,7 +1880,7 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
 		/* Treat errors as non-critical */
 		ret = mfd_add_devices(wm831x->dev, wm831x_num, backlight_devs,
 				      ARRAY_SIZE(backlight_devs), NULL,
-				      0);
+				      0, NULL);
 		if (ret < 0)
 			dev_err(wm831x->dev, "Failed to add backlight: %d\n",
 				ret);
diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 4b7d378551d..639ca359242 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -70,7 +70,7 @@ static int wm8400_register_codec(struct wm8400 *wm8400)
 		.pdata_size = sizeof(*wm8400),
 	};
 
-	return mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0);
+	return mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0, NULL);
 }
 
 /*
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index eec74aa55fd..2febf88cfce 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -414,7 +414,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
 	ret = mfd_add_devices(wm8994->dev, -1,
 			      wm8994_regulator_devs,
 			      ARRAY_SIZE(wm8994_regulator_devs),
-			      NULL, 0);
+			      NULL, 0, NULL);
 	if (ret != 0) {
 		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
 		goto err;
@@ -648,7 +648,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
 
 	ret = mfd_add_devices(wm8994->dev, -1,
 			      wm8994_devs, ARRAY_SIZE(wm8994_devs),
-			      NULL, 0);
+			      NULL, 0, NULL);
 	if (ret != 0) {
 		dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
 		goto err_irq;
diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c
index 0aac4aff17a..a050e56a9bb 100644
--- a/drivers/mfd/wm8994-irq.c
+++ b/drivers/mfd/wm8994-irq.c
@@ -135,6 +135,7 @@ static struct regmap_irq_chip wm8994_irq_chip = {
 	.status_base = WM8994_INTERRUPT_STATUS_1,
 	.mask_base = WM8994_INTERRUPT_STATUS_1_MASK,
 	.ack_base = WM8994_INTERRUPT_STATUS_1,
+	.runtime_pm = true,
 };
 
 int wm8994_irq_init(struct wm8994 *wm8994)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 98a442da892..99c73352c43 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -105,7 +105,7 @@ config ATMEL_TCB_CLKSRC_BLOCK
 
 config IBM_ASM
 	tristate "Device driver for IBM RSA service processor"
-	depends on X86 && PCI && INPUT && EXPERIMENTAL
+	depends on X86 && PCI && INPUT
 	---help---
 	  This option enables device driver support for in-band access to the
 	  IBM RSA (Condor) service processor in eServer xSeries systems.
@@ -162,8 +162,8 @@ config SGI_IOC4
 	  Otherwise say N.
 
 config TIFM_CORE
-	tristate "TI Flash Media interface support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PCI
+	tristate "TI Flash Media interface support"
+	depends on PCI
 	help
 	  If you want support for Texas Instruments(R) Flash Media adapters
 	  you should select this option and then also choose an appropriate
@@ -178,8 +178,8 @@ config TIFM_CORE
 	  be called tifm_core.
 
 config TIFM_7XX1
-	tristate "TI Flash Media PCI74xx/PCI76xx host adapter support (EXPERIMENTAL)"
-	depends on PCI && TIFM_CORE && EXPERIMENTAL
+	tristate "TI Flash Media PCI74xx/PCI76xx host adapter support"
+	depends on PCI && TIFM_CORE
 	default TIFM_CORE
 	help
 	  This option enables support for Texas Instruments(R) PCI74xx and
@@ -192,7 +192,7 @@ config TIFM_7XX1
 
 config ICS932S401
 	tristate "Integrated Circuits ICS932S401"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for the Integrated Circuits
 	  ICS932S401 clock control chips.
@@ -398,7 +398,7 @@ config EP93XX_PWM
 
 config DS1682
 	tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get support for Dallas Semiconductor
 	  DS1682 Total Elapsed Time Recorder.
diff --git a/drivers/misc/bmp085-i2c.c b/drivers/misc/bmp085-i2c.c
index 9943971c13e..a4f33c995ea 100644
--- a/drivers/misc/bmp085-i2c.c
+++ b/drivers/misc/bmp085-i2c.c
@@ -57,12 +57,6 @@ static int bmp085_i2c_remove(struct i2c_client *client)
 	return bmp085_remove(&client->dev);
 }
 
-static const struct of_device_id bmp085_of_match[] = {
-	{ .compatible = "bosch,bmp085", },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, bmp085_of_match);
-
 static const struct i2c_device_id bmp085_id[] = {
 	{ BMP085_NAME, 0 },
 	{ "bmp180", 0 },
@@ -74,7 +68,6 @@ static struct i2c_driver bmp085_i2c_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
 		.name	= BMP085_NAME,
-		.of_match_table = bmp085_of_match
 	},
 	.id_table	= bmp085_id,
 	.probe		= bmp085_i2c_probe,
diff --git a/drivers/misc/bmp085-spi.c b/drivers/misc/bmp085-spi.c
index 78aaff9b523..5e982af9973 100644
--- a/drivers/misc/bmp085-spi.c
+++ b/drivers/misc/bmp085-spi.c
@@ -73,19 +73,8 @@ static struct spi_driver bmp085_spi_driver = {
 	.remove		= __devexit_p(bmp085_spi_remove)
 };
 
-static int __init bmp085_spi_init(void)
-{
-	return spi_register_driver(&bmp085_spi_driver);
-}
-
-static void __exit bmp085_spi_exit(void)
-{
-	spi_unregister_driver(&bmp085_spi_driver);
-}
+module_spi_driver(bmp085_spi_driver);
 
 MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>");
 MODULE_DESCRIPTION("BMP085 SPI bus driver");
 MODULE_LICENSE("GPL");
-
-module_init(bmp085_spi_init);
-module_exit(bmp085_spi_exit);
diff --git a/drivers/misc/c2port/Kconfig b/drivers/misc/c2port/Kconfig
index 33ee834e1b8..0dd690e61d3 100644
--- a/drivers/misc/c2port/Kconfig
+++ b/drivers/misc/c2port/Kconfig
@@ -3,8 +3,7 @@
 #
 
 menuconfig C2PORT
-	tristate "Silicon Labs C2 port support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Silicon Labs C2 port support"
 	default n
 	help
 	  This option enables support for Silicon Labs C2 port used to
@@ -22,7 +21,7 @@ menuconfig C2PORT
 if C2PORT
 
 config C2PORT_DURAMAR_2150
-	tristate "C2 port support for Eurotech's Duramar 2150 (EXPERIMENTAL)"
+	tristate "C2 port support for Eurotech's Duramar 2150"
 	depends on X86
 	default n
 	help
diff --git a/drivers/misc/carma/carma-fpga-program.c b/drivers/misc/carma/carma-fpga-program.c
index a2d25e4857e..eaddfe9db14 100644
--- a/drivers/misc/carma/carma-fpga-program.c
+++ b/drivers/misc/carma/carma-fpga-program.c
@@ -978,7 +978,6 @@ static int fpga_of_probe(struct platform_device *op)
 	dev_set_drvdata(priv->dev, priv);
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_MEMCPY, mask);
-	dma_cap_set(DMA_INTERRUPT, mask);
 	dma_cap_set(DMA_SLAVE, mask);
 	dma_cap_set(DMA_SG, mask);
 
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 8c279da0741..0c43297ed9a 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -666,7 +666,7 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf)
 	src = SYS_FPGA_BLOCK;
 	tx = chan->device->device_prep_dma_memcpy(chan, dst, src,
 						  REG_BLOCK_SIZE,
-						  DMA_PREP_INTERRUPT);
+						  0);
 	if (!tx) {
 		dev_err(priv->dev, "unable to prep SYS-FPGA DMA\n");
 		return -ENOMEM;
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index 701edf65897..c9e695ea7c9 100644
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -50,7 +50,7 @@ config EEPROM_LEGACY
 
 config EEPROM_MAX6875
 	tristate "Maxim MAX6874/5 power supply supervisor"
-	depends on I2C && EXPERIMENTAL
+	depends on I2C
 	help
 	  If you say yes here you get read-only support for the user EEPROM of
 	  the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 25003d6ceb5..4ed93dd5411 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -302,6 +302,61 @@ static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
 
 /*-------------------------------------------------------------------------*/
 
+static int at25_np_to_chip(struct device *dev,
+			   struct device_node *np,
+			   struct spi_eeprom *chip)
+{
+	u32 val;
+
+	memset(chip, 0, sizeof(*chip));
+	strncpy(chip->name, np->name, sizeof(chip->name));
+
+	if (of_property_read_u32(np, "size", &val) == 0 ||
+	    of_property_read_u32(np, "at25,byte-len", &val) == 0) {
+		chip->byte_len = val;
+	} else {
+		dev_err(dev, "Error: missing \"size\" property\n");
+		return -ENODEV;
+	}
+
+	if (of_property_read_u32(np, "pagesize", &val) == 0 ||
+	    of_property_read_u32(np, "at25,page-size", &val) == 0) {
+		chip->page_size = (u16)val;
+	} else {
+		dev_err(dev, "Error: missing \"pagesize\" property\n");
+		return -ENODEV;
+	}
+
+	if (of_property_read_u32(np, "at25,addr-mode", &val) == 0) {
+		chip->flags = (u16)val;
+	} else {
+		if (of_property_read_u32(np, "address-width", &val)) {
+			dev_err(dev,
+				"Error: missing \"address-width\" property\n");
+			return -ENODEV;
+		}
+		switch (val) {
+		case 8:
+			chip->flags |= EE_ADDR1;
+			break;
+		case 16:
+			chip->flags |= EE_ADDR2;
+			break;
+		case 24:
+			chip->flags |= EE_ADDR3;
+			break;
+		default:
+			dev_err(dev,
+				"Error: bad \"address-width\" property: %u\n",
+				val);
+			return -ENODEV;
+		}
+		if (of_find_property(np, "read-only", NULL))
+			chip->flags |= EE_READONLY;
+	}
+	return 0;
+}
+
 static int at25_probe(struct spi_device *spi)
 {
 	struct at25_data	*at25 = NULL;
@@ -314,33 +369,11 @@ static int at25_probe(struct spi_device *spi)
 	/* Chip description */
 	if (!spi->dev.platform_data) {
 		if (np) {
-			u32 val;
-
-			memset(&chip, 0, sizeof(chip));
-			strncpy(chip.name, np->name, 10);
-
-			err = of_property_read_u32(np, "at25,byte-len", &val);
-			if (err) {
-				dev_dbg(&spi->dev, "invalid chip dt description\n");
-				goto fail;
-			}
-			chip.byte_len = val;
-
-			err = of_property_read_u32(np, "at25,addr-mode", &val);
-			if (err) {
-				dev_dbg(&spi->dev, "invalid chip dt description\n");
-				goto fail;
-			}
-			chip.flags = (u16)val;
-
-			err = of_property_read_u32(np, "at25,page-size", &val);
-			if (err) {
-				dev_dbg(&spi->dev, "invalid chip dt description\n");
+			err = at25_np_to_chip(&spi->dev, np, &chip);
+			if (err)
 				goto fail;
-			}
-			chip.page_size = (u16)val;
 		} else {
-			dev_dbg(&spi->dev, "no chip description\n");
+			dev_err(&spi->dev, "Error: no chip description\n");
 			err = -ENODEV;
 			goto fail;
 		}
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index 6df0da4085e..12ccdf94e4f 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -736,7 +736,14 @@ static void ilo_remove(struct pci_dev *pdev)
 	free_irq(pdev->irq, ilo_hw);
 	ilo_unmap_device(pdev, ilo_hw);
 	pci_release_regions(pdev);
-	pci_disable_device(pdev);
+	/*
+	 * pci_disable_device(pdev) used to be here. But this PCI device has
+	 * two functions with interrupt lines connected to a single pin. The
+	 * other one is a USB host controller. So when we disable the PIN here
+	 * e.g. by rmmod hpilo, the controller stops working. It is because
+	 * the interrupt link is disabled in ACPI since it is not refcounted
+	 * yet. See acpi_pci_link_free_irq called from acpi_pci_irq_disable.
+	 */
 	kfree(ilo_hw);
 	ilo_hwdev[(minor / max_ccb)] = 0;
 }
@@ -826,7 +833,7 @@ unmap:
 free_regions:
 	pci_release_regions(pdev);
 disable:
-	pci_disable_device(pdev);
+/*	pci_disable_device(pdev);  see comment in ilo_remove */
 free:
 	kfree(ilo_hw);
 out:
diff --git a/drivers/misc/ibmasm/uart.c b/drivers/misc/ibmasm/uart.c
index 1dcb9ae1905..01e2b0d7e59 100644
--- a/drivers/misc/ibmasm/uart.c
+++ b/drivers/misc/ibmasm/uart.c
@@ -33,7 +33,7 @@
 
 void ibmasm_register_uart(struct service_processor *sp)
 {
-	struct uart_port uport;
+	struct uart_8250_port uart;
 	void __iomem *iomem_base;
 
 	iomem_base = sp->base_address + SCOUT_COM_B_BASE;
@@ -47,14 +47,14 @@ void ibmasm_register_uart(struct service_processor *sp)
 		return;
 	}
 
-	memset(&uport, 0, sizeof(struct uart_port));
-	uport.irq	= sp->irq;
-	uport.uartclk	= 3686400;
-	uport.flags	= UPF_SHARE_IRQ;
-	uport.iotype	= UPIO_MEM;
-	uport.membase	= iomem_base;
+	memset(&uart, 0, sizeof(uart));
+	uart.port.irq		= sp->irq;
+	uart.port.uartclk	= 3686400;
+	uart.port.flags		= UPF_SHARE_IRQ;
+	uart.port.iotype	= UPIO_MEM;
+	uart.port.membase	= iomem_base;
 
-	sp->serial_line = serial8250_register_port(&uport);
+	sp->serial_line = serial8250_register_8250_port(&uart);
 	if (sp->serial_line < 0) {
 		dev_err(sp->dev, "Failed to register serial port\n");
 		return;
diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c
index df03dd3bd0e..6a7710603a9 100644
--- a/drivers/misc/ioc4.c
+++ b/drivers/misc/ioc4.c
@@ -487,7 +487,7 @@ static void __exit
 ioc4_exit(void)
 {
 	/* Ensure ioc4_load_modules() has completed before exiting */
-	flush_work_sync(&ioc4_load_modules_work);
+	flush_work(&ioc4_load_modules_work);
 	pci_unregister_driver(&ioc4_driver);
 }
 
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index a981e2a42f9..4a87e5c0a32 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -39,6 +39,7 @@
 #include <linux/miscdevice.h>
 #include <linux/pm_runtime.h>
 #include <linux/atomic.h>
+#include <linux/of_device.h>
 #include "lis3lv02d.h"
 
 #define DRIVER_NAME     "lis3lv02d"
@@ -80,6 +81,15 @@
 #define LIS3_SENSITIVITY_12B		((LIS3_ACCURACY * 1000) / 1024)
 #define LIS3_SENSITIVITY_8B		(18 * LIS3_ACCURACY)
 
+/*
+ * LIS331DLH spec says 1LSBs corresponds 4G/4096 -> 1LSB is 1000/1024 mG.
+ * Below macros defines sensitivity values for +/-2G. Dataout bits for
+ * +/-2G range is 12 bits so 4 bits adjustment must be done to get 12bit
+ * data from 16bit value. Currently this driver supports only 2G range.
+ */
+#define LIS3DLH_SENSITIVITY_2G		((LIS3_ACCURACY * 1000) / 1024)
+#define SHIFT_ADJ_2G			4
+
 #define LIS3_DEFAULT_FUZZ_12B		3
 #define LIS3_DEFAULT_FLAT_12B		3
 #define LIS3_DEFAULT_FUZZ_8B		1
@@ -135,6 +145,19 @@ static s16 lis3lv02d_read_12(struct lis3lv02d *lis3, int reg)
 	return (s16)((hi << 8) | lo);
 }
 
+/* 12bits for 2G range, 13 bits for 4G range and 14 bits for 8G range */
+static s16 lis331dlh_read_data(struct lis3lv02d *lis3, int reg)
+{
+	u8 lo, hi;
+	int v;
+
+	lis3->read(lis3, reg - 1, &lo);
+	lis3->read(lis3, reg, &hi);
+	v = (int) ((hi << 8) | lo);
+
+	return (s16) v >> lis3->shift_adj;
+}
+
 /**
  * lis3lv02d_get_axis - For the given axis, give the value converted
  * @axis:      1,2,3 - can also be negative
@@ -195,6 +218,7 @@ static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z)
 static int lis3_12_rates[4] = {40, 160, 640, 2560};
 static int lis3_8_rates[2] = {100, 400};
 static int lis3_3dc_rates[16] = {0, 1, 10, 25, 50, 100, 200, 400, 1600, 5000};
+static int lis3_3dlh_rates[4] = {50, 100, 400, 1000};
 
 /* ODR is Output Data Rate */
 static int lis3lv02d_get_odr(struct lis3lv02d *lis3)
@@ -267,7 +291,7 @@ static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
 				(LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY));
 	}
 
-	if (lis3->whoami == WAI_3DC) {
+	if ((lis3->whoami == WAI_3DC) || (lis3->whoami == WAI_3DLH)) {
 		ctlreg = CTRL_REG4;
 		selftest = CTRL4_ST0;
 	} else {
@@ -398,9 +422,17 @@ int lis3lv02d_poweron(struct lis3lv02d *lis3)
 		lis3->read(lis3, CTRL_REG2, &reg);
 		if (lis3->whoami ==  WAI_12B)
 			reg |= CTRL2_BDU | CTRL2_BOOT;
+		else if (lis3->whoami ==  WAI_3DLH)
+			reg |= CTRL2_BOOT_3DLH;
 		else
 			reg |= CTRL2_BOOT_8B;
 		lis3->write(lis3, CTRL_REG2, reg);
+
+		if (lis3->whoami ==  WAI_3DLH) {
+			lis3->read(lis3, CTRL_REG4, &reg);
+			reg |= CTRL4_BDU;
+			lis3->write(lis3, CTRL_REG4, reg);
+		}
 	}
 
 	err = lis3lv02d_get_pwron_wait(lis3);
@@ -912,6 +944,154 @@ static void lis3lv02d_8b_configure(struct lis3lv02d *lis3,
 	}
 }
 
+#ifdef CONFIG_OF
+int lis3lv02d_init_dt(struct lis3lv02d *lis3)
+{
+	struct lis3lv02d_platform_data *pdata;
+	struct device_node *np = lis3->of_node;
+	u32 val;
+
+	if (!lis3->of_node)
+		return 0;
+
+	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	if (of_get_property(np, "st,click-single-x", NULL))
+		pdata->click_flags |= LIS3_CLICK_SINGLE_X;
+	if (of_get_property(np, "st,click-double-x", NULL))
+		pdata->click_flags |= LIS3_CLICK_DOUBLE_X;
+
+	if (of_get_property(np, "st,click-single-y", NULL))
+		pdata->click_flags |= LIS3_CLICK_SINGLE_Y;
+	if (of_get_property(np, "st,click-double-y", NULL))
+		pdata->click_flags |= LIS3_CLICK_DOUBLE_Y;
+
+	if (of_get_property(np, "st,click-single-z", NULL))
+		pdata->click_flags |= LIS3_CLICK_SINGLE_Z;
+	if (of_get_property(np, "st,click-double-z", NULL))
+		pdata->click_flags |= LIS3_CLICK_DOUBLE_Z;
+
+	if (!of_property_read_u32(np, "st,click-threshold-x", &val))
+		pdata->click_thresh_x = val;
+	if (!of_property_read_u32(np, "st,click-threshold-y", &val))
+		pdata->click_thresh_y = val;
+	if (!of_property_read_u32(np, "st,click-threshold-z", &val))
+		pdata->click_thresh_z = val;
+
+	if (!of_property_read_u32(np, "st,click-time-limit", &val))
+		pdata->click_time_limit = val;
+	if (!of_property_read_u32(np, "st,click-latency", &val))
+		pdata->click_latency = val;
+	if (!of_property_read_u32(np, "st,click-window", &val))
+		pdata->click_window = val;
+
+	if (of_get_property(np, "st,irq1-disable", NULL))
+		pdata->irq_cfg |= LIS3_IRQ1_DISABLE;
+	if (of_get_property(np, "st,irq1-ff-wu-1", NULL))
+		pdata->irq_cfg |= LIS3_IRQ1_FF_WU_1;
+	if (of_get_property(np, "st,irq1-ff-wu-2", NULL))
+		pdata->irq_cfg |= LIS3_IRQ1_FF_WU_2;
+	if (of_get_property(np, "st,irq1-data-ready", NULL))
+		pdata->irq_cfg |= LIS3_IRQ1_DATA_READY;
+	if (of_get_property(np, "st,irq1-click", NULL))
+		pdata->irq_cfg |= LIS3_IRQ1_CLICK;
+
+	if (of_get_property(np, "st,irq2-disable", NULL))
+		pdata->irq_cfg |= LIS3_IRQ2_DISABLE;
+	if (of_get_property(np, "st,irq2-ff-wu-1", NULL))
+		pdata->irq_cfg |= LIS3_IRQ2_FF_WU_1;
+	if (of_get_property(np, "st,irq2-ff-wu-2", NULL))
+		pdata->irq_cfg |= LIS3_IRQ2_FF_WU_2;
+	if (of_get_property(np, "st,irq2-data-ready", NULL))
+		pdata->irq_cfg |= LIS3_IRQ2_DATA_READY;
+	if (of_get_property(np, "st,irq2-click", NULL))
+		pdata->irq_cfg |= LIS3_IRQ2_CLICK;
+
+	if (of_get_property(np, "st,irq-open-drain", NULL))
+		pdata->irq_cfg |= LIS3_IRQ_OPEN_DRAIN;
+	if (of_get_property(np, "st,irq-active-low", NULL))
+		pdata->irq_cfg |= LIS3_IRQ_ACTIVE_LOW;
+
+	if (!of_property_read_u32(np, "st,wu-duration-1", &val))
+		pdata->duration1 = val;
+	if (!of_property_read_u32(np, "st,wu-duration-2", &val))
+		pdata->duration2 = val;
+
+	if (of_get_property(np, "st,wakeup-x-lo", NULL))
+		pdata->wakeup_flags |= LIS3_WAKEUP_X_LO;
+	if (of_get_property(np, "st,wakeup-x-hi", NULL))
+		pdata->wakeup_flags |= LIS3_WAKEUP_X_HI;
+	if (of_get_property(np, "st,wakeup-y-lo", NULL))
+		pdata->wakeup_flags |= LIS3_WAKEUP_Y_LO;
+	if (of_get_property(np, "st,wakeup-y-hi", NULL))
+		pdata->wakeup_flags |= LIS3_WAKEUP_Y_HI;
+	if (of_get_property(np, "st,wakeup-z-lo", NULL))
+		pdata->wakeup_flags |= LIS3_WAKEUP_Z_LO;
+	if (of_get_property(np, "st,wakeup-z-hi", NULL))
+		pdata->wakeup_flags |= LIS3_WAKEUP_Z_HI;
+
+	if (!of_property_read_u32(np, "st,highpass-cutoff-hz", &val)) {
+		switch (val) {
+		case 1:
+			pdata->hipass_ctrl = LIS3_HIPASS_CUTFF_1HZ;
+			break;
+		case 2:
+			pdata->hipass_ctrl = LIS3_HIPASS_CUTFF_2HZ;
+			break;
+		case 4:
+			pdata->hipass_ctrl = LIS3_HIPASS_CUTFF_4HZ;
+			break;
+		case 8:
+			pdata->hipass_ctrl = LIS3_HIPASS_CUTFF_8HZ;
+			break;
+		}
+	}
+
+	if (of_get_property(np, "st,hipass1-disable", NULL))
+		pdata->hipass_ctrl |= LIS3_HIPASS1_DISABLE;
+	if (of_get_property(np, "st,hipass2-disable", NULL))
+		pdata->hipass_ctrl |= LIS3_HIPASS2_DISABLE;
+
+	if (of_get_property(np, "st,axis-x", &val))
+		pdata->axis_x = val;
+	if (of_get_property(np, "st,axis-y", &val))
+		pdata->axis_y = val;
+	if (of_get_property(np, "st,axis-z", &val))
+		pdata->axis_z = val;
+
+	if (of_get_property(np, "st,default-rate", NULL))
+		pdata->default_rate = val;
+
+	if (of_get_property(np, "st,min-limit-x", &val))
+		pdata->st_min_limits[0] = val;
+	if (of_get_property(np, "st,min-limit-y", &val))
+		pdata->st_min_limits[1] = val;
+	if (of_get_property(np, "st,min-limit-z", &val))
+		pdata->st_min_limits[2] = val;
+
+	if (of_get_property(np, "st,max-limit-x", &val))
+		pdata->st_max_limits[0] = val;
+	if (of_get_property(np, "st,max-limit-y", &val))
+		pdata->st_max_limits[1] = val;
+	if (of_get_property(np, "st,max-limit-z", &val))
+		pdata->st_max_limits[2] = val;
+
+
+	lis3->pdata = pdata;
+
+	return 0;
+}
+
+#else
+int lis3lv02d_init_dt(struct lis3lv02d *lis3)
+{
+	return 0;
+}
+#endif
+EXPORT_SYMBOL_GPL(lis3lv02d_init_dt);
+
 /*
  * Initialise the accelerometer and the various subsystems.
  * Should be rather independent of the bus system.
@@ -956,6 +1136,16 @@ int lis3lv02d_init_device(struct lis3lv02d *lis3)
 		lis3->odr_mask = CTRL1_ODR0|CTRL1_ODR1|CTRL1_ODR2|CTRL1_ODR3;
 		lis3->scale = LIS3_SENSITIVITY_8B;
 		break;
+	case WAI_3DLH:
+		pr_info("16 bits lis331dlh sensor found\n");
+		lis3->read_data = lis331dlh_read_data;
+		lis3->mdps_max_val = 2048; /* 12 bits for 2G */
+		lis3->shift_adj = SHIFT_ADJ_2G;
+		lis3->pwron_delay = LIS3_PWRON_DELAY_WAI_8B;
+		lis3->odrs = lis3_3dlh_rates;
+		lis3->odr_mask = CTRL1_DR0 | CTRL1_DR1;
+		lis3->scale = LIS3DLH_SENSITIVITY_2G;
+		break;
 	default:
 		pr_err("unknown sensor type 0x%X\n", lis3->whoami);
 		return -EINVAL;
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
index 2b1482ad3f1..c439c827eea 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.h
+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
@@ -26,12 +26,12 @@
 /*
  * This driver tries to support the "digital" accelerometer chips from
  * STMicroelectronics such as LIS3LV02DL, LIS302DL, LIS3L02DQ, LIS331DL,
- * LIS35DE, or LIS202DL. They are very similar in terms of programming, with
- * almost the same registers. In addition to differing on physical properties,
- * they differ on the number of axes (2/3), precision (8/12 bits), and special
- * features (freefall detection, click...). Unfortunately, not all the
- * differences can be probed via a register.
- * They can be connected either via I²C or SPI.
+ * LIS331DLH, LIS35DE, or LIS202DL. They are very similar in terms of
+ * programming, with almost the same registers. In addition to differing
+ * on physical properties, they differ on the number of axes (2/3),
+ * precision (8/12 bits), and special features (freefall detection,
+ * click...). Unfortunately, not all the differences can be probed via
+ * a register. They can be connected either via I²C or SPI.
  */
 
 #include <linux/lis3lv02d.h>
@@ -96,12 +96,22 @@ enum lis3lv02d_reg {
 };
 
 enum lis3_who_am_i {
+	WAI_3DLH	= 0x32,	/* 16 bits: LIS331DLH */
 	WAI_3DC		= 0x33,	/* 8 bits: LIS3DC, HP3DC */
 	WAI_12B		= 0x3A, /* 12 bits: LIS3LV02D[LQ]... */
 	WAI_8B		= 0x3B, /* 8 bits: LIS[23]02D[LQ]... */
 	WAI_6B		= 0x52, /* 6 bits: LIS331DLF - not supported */
 };
 
+enum lis3_type {
+	LIS3LV02D,
+	LIS3DC,
+	HP3DC,
+	LIS2302D,
+	LIS331DLF,
+	LIS331DLH,
+};
+
 enum lis3lv02d_ctrl1_12b {
 	CTRL1_Xen	= 0x01,
 	CTRL1_Yen	= 0x02,
@@ -129,6 +139,27 @@ enum lis3lv02d_ctrl1_3dc {
 	CTRL1_ODR3	= 0x80,
 };
 
+enum lis331dlh_ctrl1 {
+	CTRL1_DR0	= 0x08,
+	CTRL1_DR1	= 0x10,
+	CTRL1_PM0	= 0x20,
+	CTRL1_PM1	= 0x40,
+	CTRL1_PM2	= 0x80,
+};
+
+enum lis331dlh_ctrl2 {
+	CTRL2_HPEN1	= 0x04,
+	CTRL2_HPEN2	= 0x08,
+	CTRL2_FDS_3DLH	= 0x10,
+	CTRL2_BOOT_3DLH	= 0x80,
+};
+
+enum lis331dlh_ctrl4 {
+	CTRL4_STSIGN	= 0x08,
+	CTRL4_BLE	= 0x40,
+	CTRL4_BDU	= 0x80,
+};
+
 enum lis3lv02d_ctrl2 {
 	CTRL2_DAS	= 0x01,
 	CTRL2_SIM	= 0x02,
@@ -279,9 +310,14 @@ struct lis3lv02d {
 	int                     data_ready_count[2];
 	atomic_t		wake_thread;
 	unsigned char           irq_cfg;
+	unsigned int		shift_adj;
 
 	struct lis3lv02d_platform_data *pdata;	/* for passing board config */
 	struct mutex		mutex;     /* Serialize poll and selftest */
+
+#ifdef CONFIG_OF
+	struct device_node	*of_node;
+#endif
 };
 
 int lis3lv02d_init_device(struct lis3lv02d *lis3);
@@ -290,5 +326,6 @@ void lis3lv02d_joystick_disable(struct lis3lv02d *lis3);
 void lis3lv02d_poweroff(struct lis3lv02d *lis3);
 int lis3lv02d_poweron(struct lis3lv02d *lis3);
 int lis3lv02d_remove_fs(struct lis3lv02d *lis3);
+int lis3lv02d_init_dt(struct lis3lv02d *lis3);
 
 extern struct lis3lv02d lis3_dev;
diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
index e8c0019da97..60ec8689d6e 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
@@ -31,6 +31,10 @@
 #include <linux/i2c.h>
 #include <linux/pm_runtime.h>
 #include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
+
 #include "lis3lv02d.h"
 
 #define DRV_NAME	"lis3lv02d_i2c"
@@ -90,7 +94,11 @@ static int lis3_i2c_init(struct lis3lv02d *lis3)
 	if (ret < 0)
 		return ret;
 
-	reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen;
+	if (lis3->whoami == WAI_3DLH)
+		reg |= CTRL1_PM0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen;
+	else
+		reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen;
+
 	return lis3->write(lis3, CTRL_REG1, reg);
 }
 
@@ -98,12 +106,30 @@ static int lis3_i2c_init(struct lis3lv02d *lis3)
 static union axis_conversion lis3lv02d_axis_map =
 	{ .as_array = { LIS3_DEV_X, LIS3_DEV_Y, LIS3_DEV_Z } };
 
+#ifdef CONFIG_OF
+static struct of_device_id lis3lv02d_i2c_dt_ids[] = {
+	{ .compatible = "st,lis3lv02d" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, lis3lv02d_i2c_dt_ids);
+#endif
+
 static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client,
 					const struct i2c_device_id *id)
 {
 	int ret = 0;
 	struct lis3lv02d_platform_data *pdata = client->dev.platform_data;
 
+#ifdef CONFIG_OF
+	if (of_match_device(lis3lv02d_i2c_dt_ids, &client->dev)) {
+		lis3_dev.of_node = client->dev.of_node;
+		ret = lis3lv02d_init_dt(&lis3_dev);
+		if (ret)
+			return ret;
+		pdata = lis3_dev.pdata;
+	}
+#endif
+
 	if (pdata) {
 		if ((pdata->driver_features & LIS3_USE_BLOCK_READ) &&
 			(i2c_check_functionality(client->adapter,
@@ -231,7 +257,8 @@ static int lis3_i2c_runtime_resume(struct device *dev)
 #endif /* CONFIG_PM_RUNTIME */
 
 static const struct i2c_device_id lis3lv02d_id[] = {
-	{"lis3lv02d", 0 },
+	{"lis3lv02d", LIS3LV02D},
+	{"lis331dlh", LIS331DLH},
 	{}
 };
 
@@ -250,6 +277,7 @@ static struct i2c_driver lis3lv02d_i2c_driver = {
 		.name   = DRV_NAME,
 		.owner  = THIS_MODULE,
 		.pm     = &lis3_pm_ops,
+		.of_match_table = of_match_ptr(lis3lv02d_i2c_dt_ids),
 	},
 	.probe	= lis3lv02d_i2c_probe,
 	.remove	= __devexit_p(lis3lv02d_i2c_remove),
diff --git a/drivers/misc/lis3lv02d/lis3lv02d_spi.c b/drivers/misc/lis3lv02d/lis3lv02d_spi.c
index 80880e984b4..ccb6475fa05 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d_spi.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d_spi.c
@@ -17,6 +17,9 @@
 #include <linux/workqueue.h>
 #include <linux/spi/spi.h>
 #include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
 
 #include "lis3lv02d.h"
 
@@ -58,6 +61,14 @@ static int lis3_spi_init(struct lis3lv02d *lis3)
 static union axis_conversion lis3lv02d_axis_normal =
 	{ .as_array = { 1, 2, 3 } };
 
+#ifdef CONFIG_OF
+static struct of_device_id lis302dl_spi_dt_ids[] = {
+	{ .compatible = "st,lis302dl-spi" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, lis302dl_spi_dt_ids);
+#endif
+
 static int __devinit lis302dl_spi_probe(struct spi_device *spi)
 {
 	int ret;
@@ -75,6 +86,15 @@ static int __devinit lis302dl_spi_probe(struct spi_device *spi)
 	lis3_dev.irq		= spi->irq;
 	lis3_dev.ac		= lis3lv02d_axis_normal;
 	lis3_dev.pdata		= spi->dev.platform_data;
+
+#ifdef CONFIG_OF
+	if (of_match_device(lis302dl_spi_dt_ids, &spi->dev)) {
+		lis3_dev.of_node = spi->dev.of_node;
+		ret = lis3lv02d_init_dt(&lis3_dev);
+		if (ret)
+			return ret;
+	}
+#endif
 	spi_set_drvdata(spi, &lis3_dev);
 
 	return lis3lv02d_init_device(&lis3_dev);
@@ -121,6 +141,7 @@ static struct spi_driver lis302dl_spi_driver = {
 		.name   = DRV_NAME,
 		.owner  = THIS_MODULE,
 		.pm	= &lis3lv02d_spi_pm,
+		.of_match_table = of_match_ptr(lis302dl_spi_dt_ids),
 	},
 	.probe	= lis302dl_spi_probe,
 	.remove	= __devexit_p(lis302dl_spi_remove),
diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig
index 47d78a72db2..5a79ccde2fd 100644
--- a/drivers/misc/mei/Kconfig
+++ b/drivers/misc/mei/Kconfig
@@ -1,6 +1,6 @@
 config INTEL_MEI
 	tristate "Intel Management Engine Interface (Intel MEI)"
-	depends on X86 && PCI && EXPERIMENTAL && WATCHDOG_CORE
+	depends on X86 && PCI && WATCHDOG_CORE
 	help
 	  The Intel Management Engine (Intel ME) provides Manageability,
 	  Security and Media services for system containing Intel chipsets.
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index 24c4c962819..9700532f02f 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -40,47 +40,48 @@
 /*
  * MEI device IDs
  */
-#define    MEI_DEV_ID_82946GZ	0x2974  /* 82946GZ/GL */
-#define    MEI_DEV_ID_82G35	0x2984  /* 82G35 Express */
-#define    MEI_DEV_ID_82Q965	0x2994  /* 82Q963/Q965 */
-#define    MEI_DEV_ID_82G965	0x29A4  /* 82P965/G965 */
-
-#define    MEI_DEV_ID_82GM965	0x2A04  /* Mobile PM965/GM965 */
-#define    MEI_DEV_ID_82GME965	0x2A14  /* Mobile GME965/GLE960 */
-
-#define    MEI_DEV_ID_ICH9_82Q35 0x29B4  /* 82Q35 Express */
-#define    MEI_DEV_ID_ICH9_82G33 0x29C4  /* 82G33/G31/P35/P31 Express */
-#define    MEI_DEV_ID_ICH9_82Q33 0x29D4  /* 82Q33 Express */
-#define    MEI_DEV_ID_ICH9_82X38 0x29E4  /* 82X38/X48 Express */
-#define    MEI_DEV_ID_ICH9_3200  0x29F4  /* 3200/3210 Server */
-
-#define    MEI_DEV_ID_ICH9_6	0x28B4  /* Bearlake */
-#define    MEI_DEV_ID_ICH9_7	0x28C4  /* Bearlake */
-#define    MEI_DEV_ID_ICH9_8	0x28D4  /* Bearlake */
-#define    MEI_DEV_ID_ICH9_9    0x28E4  /* Bearlake */
-#define    MEI_DEV_ID_ICH9_10	0x28F4  /* Bearlake */
-
-#define    MEI_DEV_ID_ICH9M_1	0x2A44  /* Cantiga */
-#define    MEI_DEV_ID_ICH9M_2	0x2A54  /* Cantiga */
-#define    MEI_DEV_ID_ICH9M_3	0x2A64  /* Cantiga */
-#define    MEI_DEV_ID_ICH9M_4	0x2A74  /* Cantiga */
-
-#define    MEI_DEV_ID_ICH10_1	0x2E04  /* Eaglelake */
-#define    MEI_DEV_ID_ICH10_2	0x2E14  /* Eaglelake */
-#define    MEI_DEV_ID_ICH10_3	0x2E24  /* Eaglelake */
-#define    MEI_DEV_ID_ICH10_4	0x2E34  /* Eaglelake */
-
-#define    MEI_DEV_ID_IBXPK_1	0x3B64  /* Calpella */
-#define    MEI_DEV_ID_IBXPK_2	0x3B65  /* Calpella */
-
-#define    MEI_DEV_ID_CPT_1	0x1C3A    /* Cougerpoint */
-#define    MEI_DEV_ID_PBG_1	0x1D3A    /* PBG */
-
-#define    MEI_DEV_ID_PPT_1	0x1E3A    /* Pantherpoint PPT */
-#define    MEI_DEV_ID_PPT_2	0x1CBA    /* Pantherpoint PPT */
-#define    MEI_DEV_ID_PPT_3	0x1DBA    /* Pantherpoint PPT */
-
-
+#define MEI_DEV_ID_82946GZ    0x2974  /* 82946GZ/GL */
+#define MEI_DEV_ID_82G35      0x2984  /* 82G35 Express */
+#define MEI_DEV_ID_82Q965     0x2994  /* 82Q963/Q965 */
+#define MEI_DEV_ID_82G965     0x29A4  /* 82P965/G965 */
+
+#define MEI_DEV_ID_82GM965    0x2A04  /* Mobile PM965/GM965 */
+#define MEI_DEV_ID_82GME965   0x2A14  /* Mobile GME965/GLE960 */
+
+#define MEI_DEV_ID_ICH9_82Q35 0x29B4  /* 82Q35 Express */
+#define MEI_DEV_ID_ICH9_82G33 0x29C4  /* 82G33/G31/P35/P31 Express */
+#define MEI_DEV_ID_ICH9_82Q33 0x29D4  /* 82Q33 Express */
+#define MEI_DEV_ID_ICH9_82X38 0x29E4  /* 82X38/X48 Express */
+#define MEI_DEV_ID_ICH9_3200  0x29F4  /* 3200/3210 Server */
+
+#define MEI_DEV_ID_ICH9_6     0x28B4  /* Bearlake */
+#define MEI_DEV_ID_ICH9_7     0x28C4  /* Bearlake */
+#define MEI_DEV_ID_ICH9_8     0x28D4  /* Bearlake */
+#define MEI_DEV_ID_ICH9_9     0x28E4  /* Bearlake */
+#define MEI_DEV_ID_ICH9_10    0x28F4  /* Bearlake */
+
+#define MEI_DEV_ID_ICH9M_1    0x2A44  /* Cantiga */
+#define MEI_DEV_ID_ICH9M_2    0x2A54  /* Cantiga */
+#define MEI_DEV_ID_ICH9M_3    0x2A64  /* Cantiga */
+#define MEI_DEV_ID_ICH9M_4    0x2A74  /* Cantiga */
+
+#define MEI_DEV_ID_ICH10_1    0x2E04  /* Eaglelake */
+#define MEI_DEV_ID_ICH10_2    0x2E14  /* Eaglelake */
+#define MEI_DEV_ID_ICH10_3    0x2E24  /* Eaglelake */
+#define MEI_DEV_ID_ICH10_4    0x2E34  /* Eaglelake */
+
+#define MEI_DEV_ID_IBXPK_1    0x3B64  /* Calpella */
+#define MEI_DEV_ID_IBXPK_2    0x3B65  /* Calpella */
+
+#define MEI_DEV_ID_CPT_1      0x1C3A  /* Couger Point */
+#define MEI_DEV_ID_PBG_1      0x1D3A  /* C600/X79 Patsburg */
+
+#define MEI_DEV_ID_PPT_1      0x1E3A  /* Panther Point */
+#define MEI_DEV_ID_PPT_2      0x1CBA  /* Panther Point */
+#define MEI_DEV_ID_PPT_3      0x1DBA  /* Panther Point */
+
+#define MEI_DEV_ID_LPT        0x8C3A  /* Lynx Point */
+#define MEI_DEV_ID_LPT_LP     0x9C3A  /* Lynx Point LP */
 /*
  * MEI HW Section
  */
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index e77f86e69fb..98f1430e3e1 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -24,6 +24,25 @@
 #include "interface.h"
 #include <linux/mei.h>
 
+const char *mei_dev_state_str(int state)
+{
+#define MEI_DEV_STATE(state) case MEI_DEV_##state: return #state
+	switch (state) {
+	MEI_DEV_STATE(INITIALIZING);
+	MEI_DEV_STATE(INIT_CLIENTS);
+	MEI_DEV_STATE(ENABLED);
+	MEI_DEV_STATE(RESETING);
+	MEI_DEV_STATE(DISABLED);
+	MEI_DEV_STATE(RECOVERING_FROM_RESET);
+	MEI_DEV_STATE(POWER_DOWN);
+	MEI_DEV_STATE(POWER_UP);
+	default:
+		return "unkown";
+	}
+#undef MEI_DEV_STATE
+}
+
+
 const uuid_le mei_amthi_guid  = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d, 0xac,
 						0xa8, 0x46, 0xe0, 0xff, 0x65,
 						0x81, 0x4c);
@@ -123,7 +142,7 @@ struct mei_device *mei_device_init(struct pci_dev *pdev)
 	mutex_init(&dev->device_lock);
 	init_waitqueue_head(&dev->wait_recvd_msg);
 	init_waitqueue_head(&dev->wait_stop_wd);
-	dev->mei_state = MEI_INITIALIZING;
+	dev->dev_state = MEI_DEV_INITIALIZING;
 	dev->iamthif_state = MEI_IAMTHIF_IDLE;
 	dev->wd_interface_reg = false;
 
@@ -182,7 +201,7 @@ int mei_hw_init(struct mei_device *dev)
 	}
 
 	if (err <= 0 && !dev->recvd_msg) {
-		dev->mei_state = MEI_DISABLED;
+		dev->dev_state = MEI_DEV_DISABLED;
 		dev_dbg(&dev->pdev->dev,
 			"wait_event_interruptible_timeout failed"
 			"on wait for ME to turn on ME_RDY.\n");
@@ -192,7 +211,7 @@ int mei_hw_init(struct mei_device *dev)
 
 	if (!(((dev->host_hw_state & H_RDY) == H_RDY) &&
 	      ((dev->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA))) {
-		dev->mei_state = MEI_DISABLED;
+		dev->dev_state = MEI_DEV_DISABLED;
 		dev_dbg(&dev->pdev->dev,
 			"host_hw_state = 0x%08x, me_hw_state = 0x%08x.\n",
 			dev->host_hw_state, dev->me_hw_state);
@@ -258,15 +277,15 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 	struct mei_cl_cb *cb_next = NULL;
 	bool unexpected;
 
-	if (dev->mei_state == MEI_RECOVERING_FROM_RESET) {
+	if (dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET) {
 		dev->need_reset = true;
 		return;
 	}
 
-	unexpected = (dev->mei_state != MEI_INITIALIZING &&
-			dev->mei_state != MEI_DISABLED &&
-			dev->mei_state != MEI_POWER_DOWN &&
-			dev->mei_state != MEI_POWER_UP);
+	unexpected = (dev->dev_state != MEI_DEV_INITIALIZING &&
+			dev->dev_state != MEI_DEV_DISABLED &&
+			dev->dev_state != MEI_DEV_POWER_DOWN &&
+			dev->dev_state != MEI_DEV_POWER_UP);
 
 	dev->host_hw_state = mei_hcsr_read(dev);
 
@@ -285,10 +304,10 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 
 	dev->need_reset = false;
 
-	if (dev->mei_state != MEI_INITIALIZING) {
-		if (dev->mei_state != MEI_DISABLED &&
-		    dev->mei_state != MEI_POWER_DOWN)
-			dev->mei_state = MEI_RESETING;
+	if (dev->dev_state != MEI_DEV_INITIALIZING) {
+		if (dev->dev_state != MEI_DEV_DISABLED &&
+		    dev->dev_state != MEI_DEV_POWER_DOWN)
+			dev->dev_state = MEI_DEV_RESETING;
 
 		list_for_each_entry_safe(cl_pos,
 				cl_next, &dev->file_list, link) {
@@ -311,7 +330,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 
 	dev->me_clients_num = 0;
 	dev->rd_msg_hdr = 0;
-	dev->stop = false;
 	dev->wd_pending = false;
 
 	/* update the state of the registers after reset */
@@ -322,7 +340,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 	    dev->host_hw_state, dev->me_hw_state);
 
 	if (unexpected)
-		dev_warn(&dev->pdev->dev, "unexpected reset.\n");
+		dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
+			 mei_dev_state_str(dev->dev_state));
 
 	/* Wake up all readings so they can be interrupted */
 	list_for_each_entry_safe(cl_pos, cl_next, &dev->file_list, link) {
@@ -371,7 +390,7 @@ void mei_host_start_message(struct mei_device *dev)
 	if (mei_write_message(dev, mei_hdr, (unsigned char *)host_start_req,
 				       mei_hdr->length)) {
 		dev_dbg(&dev->pdev->dev, "write send version message to FW fail.\n");
-		dev->mei_state = MEI_RESETING;
+		dev->dev_state = MEI_DEV_RESETING;
 		mei_reset(dev, 1);
 	}
 	dev->init_clients_state = MEI_START_MESSAGE;
@@ -403,7 +422,7 @@ void mei_host_enum_clients_message(struct mei_device *dev)
 	host_enum_req->hbm_cmd = HOST_ENUM_REQ_CMD;
 	if (mei_write_message(dev, mei_hdr, (unsigned char *)host_enum_req,
 				mei_hdr->length)) {
-		dev->mei_state = MEI_RESETING;
+		dev->dev_state = MEI_DEV_RESETING;
 		dev_dbg(&dev->pdev->dev, "write send enumeration request message to FW fail.\n");
 		mei_reset(dev, 1);
 	}
@@ -444,7 +463,7 @@ void mei_allocate_me_clients_storage(struct mei_device *dev)
 			sizeof(struct mei_me_client), GFP_KERNEL);
 	if (!clients) {
 		dev_dbg(&dev->pdev->dev, "memory allocation for ME clients failed.\n");
-		dev->mei_state = MEI_RESETING;
+		dev->dev_state = MEI_DEV_RESETING;
 		mei_reset(dev, 1);
 		return ;
 	}
@@ -490,7 +509,7 @@ int mei_host_client_properties(struct mei_device *dev)
 		if (mei_write_message(dev, mei_header,
 				(unsigned char *)host_cli_req,
 				mei_header->length)) {
-			dev->mei_state = MEI_RESETING;
+			dev->dev_state = MEI_DEV_RESETING;
 			dev_dbg(&dev->pdev->dev, "write send enumeration request message to FW fail.\n");
 			mei_reset(dev, 1);
 			return -EIO;
@@ -522,12 +541,12 @@ void mei_cl_init(struct mei_cl *priv, struct mei_device *dev)
 	priv->dev = dev;
 }
 
-int mei_find_me_client_index(const struct mei_device *dev, uuid_le cuuid)
+int mei_me_cl_by_uuid(const struct mei_device *dev, const uuid_le *cuuid)
 {
-	int i, res = -1;
+	int i, res = -ENOENT;
 
 	for (i = 0; i < dev->me_clients_num; ++i)
-		if (uuid_le_cmp(cuuid,
+		if (uuid_le_cmp(*cuuid,
 				dev->me_clients[i].props.protocol_name) == 0) {
 			res = i;
 			break;
@@ -538,35 +557,35 @@ int mei_find_me_client_index(const struct mei_device *dev, uuid_le cuuid)
 
 
 /**
- * mei_find_me_client_update_filext - searches for ME client guid
+ * mei_me_cl_update_filext - searches for ME client guid
  *                       sets client_id in mei_file_private if found
  * @dev: the device structure
- * @priv: private file structure to set client_id in
- * @cguid: searched guid of ME client
+ * @cl: private file structure to set client_id in
+ * @cuuid: searched uuid of ME client
  * @client_id: id of host client to be set in file private structure
  *
  * returns ME client index
  */
-u8 mei_find_me_client_update_filext(struct mei_device *dev, struct mei_cl *priv,
-				const uuid_le *cguid, u8 client_id)
+int mei_me_cl_update_filext(struct mei_device *dev, struct mei_cl *cl,
+				const uuid_le *cuuid, u8 host_cl_id)
 {
 	int i;
 
-	if (!dev || !priv || !cguid)
-		return 0;
+	if (!dev || !cl || !cuuid)
+		return -EINVAL;
 
 	/* check for valid client id */
-	i = mei_find_me_client_index(dev, *cguid);
+	i = mei_me_cl_by_uuid(dev, cuuid);
 	if (i >= 0) {
-		priv->me_client_id = dev->me_clients[i].client_id;
-		priv->state = MEI_FILE_CONNECTING;
-		priv->host_client_id = client_id;
+		cl->me_client_id = dev->me_clients[i].client_id;
+		cl->state = MEI_FILE_CONNECTING;
+		cl->host_client_id = host_cl_id;
 
-		list_add_tail(&priv->link, &dev->file_list);
+		list_add_tail(&cl->link, &dev->file_list);
 		return (u8)i;
 	}
 
-	return 0;
+	return -ENOENT;
 }
 
 /**
@@ -577,16 +596,16 @@ u8 mei_find_me_client_update_filext(struct mei_device *dev, struct mei_cl *priv,
  */
 void mei_host_init_iamthif(struct mei_device *dev)
 {
-	u8 i;
+	int i;
 	unsigned char *msg_buf;
 
 	mei_cl_init(&dev->iamthif_cl, dev);
 	dev->iamthif_cl.state = MEI_FILE_DISCONNECTED;
 
 	/* find ME amthi client */
-	i = mei_find_me_client_update_filext(dev, &dev->iamthif_cl,
+	i = mei_me_cl_update_filext(dev, &dev->iamthif_cl,
 			    &mei_amthi_guid, MEI_IAMTHIF_HOST_CLIENT_ID);
-	if (dev->iamthif_cl.state != MEI_FILE_CONNECTING) {
+	if (i < 0) {
 		dev_dbg(&dev->pdev->dev, "failed to find iamthif client.\n");
 		return;
 	}
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index fb5c7db4723..ec6c785a396 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -23,14 +23,6 @@
 #include "mei_dev.h"
 
 
-#define AMT_WD_DEFAULT_TIMEOUT 120	/* seconds */
-#define AMT_WD_MIN_TIMEOUT 120	/* seconds */
-#define AMT_WD_MAX_TIMEOUT 65535	/* seconds */
-
-#define MEI_WATCHDOG_DATA_SIZE         16
-#define MEI_START_WD_DATA_SIZE         20
-#define MEI_WD_PARAMS_SIZE             4
-
 
 void mei_read_slots(struct mei_device *dev,
 		     unsigned char *buffer,
@@ -64,7 +56,7 @@ int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl);
 
 
 int mei_wd_send(struct mei_device *dev);
-int mei_wd_stop(struct mei_device *dev, bool preserve);
+int mei_wd_stop(struct mei_device *dev);
 int mei_wd_host_init(struct mei_device *dev);
 /*
  * mei_watchdog_register  - Registering watchdog interface
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index c6ffbbe5a6c..3533edde04a 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -221,17 +221,10 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
 				cl->status = 0;
 				list_del(&cb_pos->cb_list);
 				dev_dbg(&dev->pdev->dev,
-					"completed read host client = %d,"
-					"ME client = %d, "
-					"data length = %lu\n",
+					"completed read H cl = %d, ME cl = %d, length = %lu\n",
 					cl->host_client_id,
 					cl->me_client_id,
 					cb_pos->information);
-
-				*(cb_pos->response_buffer.data +
-					cb_pos->information) = '\0';
-				dev_dbg(&dev->pdev->dev, "cb_pos->res_buffer - %s\n",
-					cb_pos->response_buffer.data);
 				list_add_tail(&cb_pos->cb_list,
 					&complete_list->mei_cb.cb_list);
 			}
@@ -633,7 +626,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 		if (version_res->host_version_supported) {
 			dev->version.major_version = HBM_MAJOR_VERSION;
 			dev->version.minor_version = HBM_MINOR_VERSION;
-			if (dev->mei_state == MEI_INIT_CLIENTS &&
+			if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
 			    dev->init_clients_state == MEI_START_MESSAGE) {
 				dev->init_clients_timer = 0;
 				mei_host_enum_clients_message(dev);
@@ -707,7 +700,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 			dev->me_clients[dev->me_client_presentation_num].props
 						= props_res->client_properties;
 
-			if (dev->mei_state == MEI_INIT_CLIENTS &&
+			if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
 			    dev->init_clients_state ==
 					MEI_CLIENT_PROPERTIES_MESSAGE) {
 				dev->me_client_index++;
@@ -734,7 +727,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 					 * Client ID 2 - Reserved for AMTHI
 					 */
 					bitmap_set(dev->host_clients_map, 0, 3);
-					dev->mei_state = MEI_ENABLED;
+					dev->dev_state = MEI_DEV_ENABLED;
 
 					/* if wd initialization fails, initialization the AMTHI client,
 					 * otherwise the AMTHI client will be initialized after the WD client connect response
@@ -759,7 +752,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 	case HOST_ENUM_RES_CMD:
 		enum_res = (struct hbm_host_enum_response *) mei_msg;
 		memcpy(dev->me_clients_map, enum_res->valid_addresses, 32);
-		if (dev->mei_state == MEI_INIT_CLIENTS &&
+		if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
 		    dev->init_clients_state == MEI_ENUM_CLIENTS_MESSAGE) {
 				dev->init_clients_timer = 0;
 				dev->me_client_presentation_num = 0;
@@ -776,7 +769,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 		break;
 
 	case HOST_STOP_RES_CMD:
-		dev->mei_state = MEI_DISABLED;
+		dev->dev_state = MEI_DEV_DISABLED;
 		dev_dbg(&dev->pdev->dev, "resetting because of FW stop response.\n");
 		mei_reset(dev, 1);
 		break;
@@ -1224,10 +1217,9 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 		}
 	}
 
-	if (dev->stop && !dev->wd_pending) {
-		dev->wd_stopped = true;
+	if (dev->wd_state == MEI_WD_STOPPING) {
+		dev->wd_state = MEI_WD_IDLE;
 		wake_up_interruptible(&dev->wait_stop_wd);
-		return 0;
 	}
 
 	if (dev->extra_write_index) {
@@ -1240,7 +1232,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 		*slots -= dev->extra_write_index;
 		dev->extra_write_index = 0;
 	}
-	if (dev->mei_state == MEI_ENABLED) {
+	if (dev->dev_state == MEI_DEV_ENABLED) {
 		if (dev->wd_pending &&
 		    mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) {
 			if (mei_wd_send(dev))
@@ -1250,14 +1242,12 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 
 			dev->wd_pending = false;
 
-			if (dev->wd_timeout)
-				*slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
+			if (dev->wd_state == MEI_WD_RUNNING)
+				*slots -= mei_data2slots(MEI_WD_START_MSG_SIZE);
 			else
-				*slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
+				*slots -= mei_data2slots(MEI_WD_STOP_MSG_SIZE);
 		}
 	}
-	if (dev->stop)
-		return -ENODEV;
 
 	/* complete control write list CB */
 	dev_dbg(&dev->pdev->dev, "complete control write list cb.\n");
@@ -1361,8 +1351,8 @@ void mei_timer(struct work_struct *work)
 
 
 	mutex_lock(&dev->device_lock);
-	if (dev->mei_state != MEI_ENABLED) {
-		if (dev->mei_state == MEI_INIT_CLIENTS) {
+	if (dev->dev_state != MEI_DEV_ENABLED) {
+		if (dev->dev_state == MEI_DEV_INIT_CLIENTS) {
 			if (dev->init_clients_timer) {
 				if (--dev->init_clients_timer == 0) {
 					dev_dbg(&dev->pdev->dev, "IMEI reset due to init clients timeout ,init clients state = %d.\n",
@@ -1484,8 +1474,8 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
 
 	/* check if ME wants a reset */
 	if ((dev->me_hw_state & ME_RDY_HRA) == 0 &&
-	    dev->mei_state != MEI_RESETING &&
-	    dev->mei_state != MEI_INITIALIZING) {
+	    dev->dev_state != MEI_DEV_RESETING &&
+	    dev->dev_state != MEI_DEV_INITIALIZING) {
 		dev_dbg(&dev->pdev->dev, "FW not ready.\n");
 		mei_reset(dev, 1);
 		mutex_unlock(&dev->device_lock);
@@ -1498,7 +1488,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
 			dev_dbg(&dev->pdev->dev, "we need to start the dev.\n");
 			dev->host_hw_state |= (H_IE | H_IG | H_RDY);
 			mei_hcsr_set(dev);
-			dev->mei_state = MEI_INIT_CLIENTS;
+			dev->dev_state = MEI_DEV_INIT_CLIENTS;
 			dev_dbg(&dev->pdev->dev, "link is established start sending messages.\n");
 			/* link is established
 			 * start sending messages.
diff --git a/drivers/misc/mei/iorw.c b/drivers/misc/mei/iorw.c
index 50f52e21f58..fcba98eb892 100644
--- a/drivers/misc/mei/iorw.c
+++ b/drivers/misc/mei/iorw.c
@@ -38,7 +38,31 @@
 #include <linux/mei.h>
 #include "interface.h"
 
+/**
+ * mei_me_cl_by_id return index to me_clients for client_id
+ *
+ * @dev: the device structure
+ * @client_id: me client id
+ *
+ * Locking: called under "dev->device_lock" lock
+ *
+ * returns index on success, -ENOENT on failure.
+ */
 
+int mei_me_cl_by_id(struct mei_device *dev, u8 client_id)
+{
+	int i;
+	for (i = 0; i < dev->me_clients_num; i++)
+		if (dev->me_clients[i].client_id == client_id)
+			break;
+	if (WARN_ON(dev->me_clients[i].client_id != client_id))
+		return -ENOENT;
+
+	if (i == dev->me_clients_num)
+		return -ENOENT;
+
+	return i;
+}
 
 /**
  * mei_ioctl_connect_client - the connect to fw client IOCTL function
@@ -84,7 +108,7 @@ int mei_ioctl_connect_client(struct file *file,
 
 	cb->major_file_operations = MEI_IOCTL;
 
-	if (dev->mei_state != MEI_ENABLED) {
+	if (dev->dev_state != MEI_DEV_ENABLED) {
 		rets = -ENODEV;
 		goto end;
 	}
@@ -95,7 +119,7 @@ int mei_ioctl_connect_client(struct file *file,
 	}
 
 	/* find ME client we're trying to connect to */
-	i = mei_find_me_client_index(dev, data->in_client_uuid);
+	i = mei_me_cl_by_uuid(dev, &data->in_client_uuid);
 	if (i >= 0 && !dev->me_clients[i].props.fixed_address) {
 		cl->me_client_id = dev->me_clients[i].client_id;
 		cl->state = MEI_FILE_CONNECTING;
@@ -273,19 +297,12 @@ int amthi_read(struct mei_device *dev, struct file *file,
 		return -ETIMEDOUT;
 	}
 
-	for (i = 0; i < dev->me_clients_num; i++) {
-		if (dev->me_clients[i].client_id ==
-		    dev->iamthif_cl.me_client_id)
-			break;
-	}
+	i = mei_me_cl_by_id(dev, dev->iamthif_cl.me_client_id);
 
-	if (i == dev->me_clients_num) {
+	if (i < 0) {
 		dev_dbg(&dev->pdev->dev, "amthi client not found.\n");
 		return -ENODEV;
 	}
-	if (WARN_ON(dev->me_clients[i].client_id != cl->me_client_id))
-		return -ENODEV;
-
 	dev_dbg(&dev->pdev->dev, "checking amthi data\n");
 	cb = find_amthi_read_list_entry(dev, file);
 
@@ -316,8 +333,7 @@ int amthi_read(struct mei_device *dev, struct file *file,
 	dev->iamthif_timer = 0;
 
 	if (cb) {
-		timeout = cb->read_time +
-					msecs_to_jiffies(IAMTHIF_READ_TIMER);
+		timeout = cb->read_time + msecs_to_jiffies(IAMTHIF_READ_TIMER);
 		dev_dbg(&dev->pdev->dev, "amthi timeout = %lud\n",
 				timeout);
 
@@ -386,7 +402,7 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl)
 	if (cl->state != MEI_FILE_CONNECTED)
 		return -ENODEV;
 
-	if (dev->mei_state != MEI_ENABLED)
+	if (dev->dev_state != MEI_DEV_ENABLED)
 		return -ENODEV;
 
 	dev_dbg(&dev->pdev->dev, "check if read is pending.\n");
@@ -401,19 +417,8 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl)
 
 	dev_dbg(&dev->pdev->dev, "allocation call back successful. host client = %d, ME client = %d\n",
 		cl->host_client_id, cl->me_client_id);
-
-	for (i = 0; i < dev->me_clients_num; i++) {
-		if (dev->me_clients[i].client_id == cl->me_client_id)
-			break;
-
-	}
-
-	if (WARN_ON(dev->me_clients[i].client_id != cl->me_client_id)) {
-		rets = -ENODEV;
-		goto unlock;
-	}
-
-	if (i == dev->me_clients_num) {
+	i = mei_me_cl_by_id(dev, cl->me_client_id);
+	if (i < 0) {
 		rets = -ENODEV;
 		goto unlock;
 	}
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 09233020886..e8b0858132c 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -41,11 +41,8 @@
 #include <linux/mei.h>
 #include "interface.h"
 
-static const char mei_driver_name[] = "mei";
-
-/* The device pointer */
-/* Currently this driver works as long as there is only a single AMT device. */
-struct pci_dev *mei_device;
+/* AMT device is a singleton on the platform */
+static struct pci_dev *mei_pdev;
 
 /* mei_pci_tbl - PCI Device ID Table */
 static DEFINE_PCI_DEVICE_TABLE(mei_pci_tbl) = {
@@ -80,6 +77,8 @@ static DEFINE_PCI_DEVICE_TABLE(mei_pci_tbl) = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_1)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)},
 
 	/* required last entry */
 	{0, }
@@ -220,10 +219,10 @@ static int mei_open(struct inode *inode, struct file *file)
 	int err;
 
 	err = -ENODEV;
-	if (!mei_device)
+	if (!mei_pdev)
 		goto out;
 
-	dev = pci_get_drvdata(mei_device);
+	dev = pci_get_drvdata(mei_pdev);
 	if (!dev)
 		goto out;
 
@@ -234,18 +233,24 @@ static int mei_open(struct inode *inode, struct file *file)
 		goto out_unlock;
 
 	err = -ENODEV;
-	if (dev->mei_state != MEI_ENABLED) {
-		dev_dbg(&dev->pdev->dev, "mei_state != MEI_ENABLED  mei_state= %d\n",
-		    dev->mei_state);
+	if (dev->dev_state != MEI_DEV_ENABLED) {
+		dev_dbg(&dev->pdev->dev, "dev_state != MEI_ENABLED  dev_state = %s\n",
+		    mei_dev_state_str(dev->dev_state));
 		goto out_unlock;
 	}
 	err = -EMFILE;
-	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT)
+	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
+		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
+			MEI_MAX_OPEN_HANDLE_COUNT);
 		goto out_unlock;
+	}
 
 	cl_id = find_first_zero_bit(dev->host_clients_map, MEI_CLIENTS_MAX);
-	if (cl_id >= MEI_CLIENTS_MAX)
+	if (cl_id >= MEI_CLIENTS_MAX) {
+		dev_err(&dev->pdev->dev, "client_id exceded %d",
+				MEI_CLIENTS_MAX) ;
 		goto out_unlock;
+	}
 
 	cl->host_client_id  = cl_id;
 
@@ -386,17 +391,16 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 	dev = cl->dev;
 
 	mutex_lock(&dev->device_lock);
-	if (dev->mei_state != MEI_ENABLED) {
+	if (dev->dev_state != MEI_DEV_ENABLED) {
 		rets = -ENODEV;
 		goto out;
 	}
 
 	if ((cl->sm_state & MEI_WD_STATE_INDEPENDENCE_MSG_SENT) == 0) {
 		/* Do not allow to read watchdog client */
-		i = mei_find_me_client_index(dev, mei_wd_guid);
+		i = mei_me_cl_by_uuid(dev, &mei_wd_guid);
 		if (i >= 0) {
 			struct mei_me_client *me_client = &dev->me_clients[i];
-
 			if (cl->me_client_id == me_client->client_id) {
 				rets = -EBADF;
 				goto out;
@@ -541,7 +545,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 
 	mutex_lock(&dev->device_lock);
 
-	if (dev->mei_state != MEI_ENABLED) {
+	if (dev->dev_state != MEI_DEV_ENABLED) {
 		mutex_unlock(&dev->device_lock);
 		return -ENODEV;
 	}
@@ -616,26 +620,16 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 			rets = -ENOMEM;
 			goto unlock_dev;
 		}
-		if (dev->mei_state != MEI_ENABLED) {
+		if (dev->dev_state != MEI_DEV_ENABLED) {
 			rets = -ENODEV;
 			goto unlock_dev;
 		}
-		for (i = 0; i < dev->me_clients_num; i++) {
-			if (dev->me_clients[i].client_id ==
-				dev->iamthif_cl.me_client_id)
-				break;
-		}
-
-		if (WARN_ON(dev->me_clients[i].client_id != cl->me_client_id)) {
+		i = mei_me_cl_by_id(dev, dev->iamthif_cl.me_client_id);
+		if (i < 0) {
 			rets = -ENODEV;
 			goto unlock_dev;
 		}
-		if (i == dev->me_clients_num ||
-		    (dev->me_clients[i].client_id !=
-		      dev->iamthif_cl.me_client_id)) {
-			rets = -ENODEV;
-			goto unlock_dev;
-		} else if (length > dev->me_clients[i].props.max_msg_length ||
+		if (length > dev->me_clients[i].props.max_msg_length ||
 			   length <= 0) {
 			rets = -EMSGSIZE;
 			goto unlock_dev;
@@ -688,16 +682,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		    cl->me_client_id);
 		goto unlock_dev;
 	}
-	for (i = 0; i < dev->me_clients_num; i++) {
-		if (dev->me_clients[i].client_id ==
-		    cl->me_client_id)
-			break;
-	}
-	if (WARN_ON(dev->me_clients[i].client_id != cl->me_client_id)) {
-		rets = -ENODEV;
-		goto unlock_dev;
-	}
-	if (i == dev->me_clients_num) {
+	i = mei_me_cl_by_id(dev, cl->me_client_id);
+	if (i < 0) {
 		rets = -ENODEV;
 		goto unlock_dev;
 	}
@@ -790,7 +776,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 	dev_dbg(&dev->pdev->dev, "IOCTL cmd = 0x%x", cmd);
 
 	mutex_lock(&dev->device_lock);
-	if (dev->mei_state != MEI_ENABLED) {
+	if (dev->dev_state != MEI_DEV_ENABLED) {
 		rets = -ENODEV;
 		goto out;
 	}
@@ -869,7 +855,7 @@ static unsigned int mei_poll(struct file *file, poll_table *wait)
 
 	mutex_lock(&dev->device_lock);
 
-	if (dev->mei_state != MEI_ENABLED)
+	if (dev->dev_state != MEI_DEV_ENABLED)
 		goto out;
 
 
@@ -925,6 +911,27 @@ static struct miscdevice  mei_misc_device = {
 };
 
 /**
+ * mei_quirk_probe - probe for devices that doesn't valid ME interface
+ * @pdev: PCI device structure
+ * @ent: entry into pci_device_table
+ *
+ * returns true if ME Interface is valid, false otherwise
+ */
+static bool __devinit mei_quirk_probe(struct pci_dev *pdev,
+				const struct pci_device_id *ent)
+{
+	u32 reg;
+	if (ent->device == MEI_DEV_ID_PBG_1) {
+		pci_read_config_dword(pdev, 0x48, &reg);
+		/* make sure that bit 9 is up and bit 10 is down */
+		if ((reg & 0x600) == 0x200) {
+			dev_info(&pdev->dev, "Device doesn't have valid ME Interface\n");
+			return false;
+		}
+	}
+	return true;
+}
+/**
  * mei_probe - Device Initialization Routine
  *
  * @pdev: PCI device structure
@@ -939,7 +946,13 @@ static int __devinit mei_probe(struct pci_dev *pdev,
 	int err;
 
 	mutex_lock(&mei_mutex);
-	if (mei_device) {
+
+	if (!mei_quirk_probe(pdev, ent)) {
+		err = -ENODEV;
+		goto end;
+	}
+
+	if (mei_pdev) {
 		err = -EEXIST;
 		goto end;
 	}
@@ -952,7 +965,7 @@ static int __devinit mei_probe(struct pci_dev *pdev,
 	/* set PCI host mastering  */
 	pci_set_master(pdev);
 	/* pci request regions for mei driver */
-	err = pci_request_regions(pdev, mei_driver_name);
+	err = pci_request_regions(pdev, KBUILD_MODNAME);
 	if (err) {
 		dev_err(&pdev->dev, "failed to get pci regions.\n");
 		goto disable_device;
@@ -977,12 +990,12 @@ static int __devinit mei_probe(struct pci_dev *pdev,
 		err = request_threaded_irq(pdev->irq,
 			NULL,
 			mei_interrupt_thread_handler,
-			IRQF_ONESHOT, mei_driver_name, dev);
+			IRQF_ONESHOT, KBUILD_MODNAME, dev);
 	else
 		err = request_threaded_irq(pdev->irq,
 			mei_interrupt_quick_handler,
 			mei_interrupt_thread_handler,
-			IRQF_SHARED, mei_driver_name, dev);
+			IRQF_SHARED, KBUILD_MODNAME, dev);
 
 	if (err) {
 		dev_err(&pdev->dev, "request_threaded_irq failure. irq = %d\n",
@@ -1000,7 +1013,7 @@ static int __devinit mei_probe(struct pci_dev *pdev,
 	if (err)
 		goto release_irq;
 
-	mei_device = pdev;
+	mei_pdev = pdev;
 	pci_set_drvdata(pdev, dev);
 
 
@@ -1045,7 +1058,7 @@ static void __devexit mei_remove(struct pci_dev *pdev)
 {
 	struct mei_device *dev;
 
-	if (mei_device != pdev)
+	if (mei_pdev != pdev)
 		return;
 
 	dev = pci_get_drvdata(pdev);
@@ -1054,9 +1067,11 @@ static void __devexit mei_remove(struct pci_dev *pdev)
 
 	mutex_lock(&dev->device_lock);
 
-	mei_wd_stop(dev, false);
+	cancel_delayed_work(&dev->timer_work);
 
-	mei_device = NULL;
+	mei_wd_stop(dev);
+
+	mei_pdev = NULL;
 
 	if (dev->iamthif_cl.state == MEI_FILE_CONNECTED) {
 		dev->iamthif_cl.state = MEI_FILE_DISCONNECTING;
@@ -1109,12 +1124,15 @@ static int mei_pci_suspend(struct device *device)
 	if (!dev)
 		return -ENODEV;
 	mutex_lock(&dev->device_lock);
+
+	cancel_delayed_work(&dev->timer_work);
+
 	/* Stop watchdog if exists */
-	err = mei_wd_stop(dev, true);
+	err = mei_wd_stop(dev);
 	/* Set new mei state */
-	if (dev->mei_state == MEI_ENABLED ||
-	    dev->mei_state == MEI_RECOVERING_FROM_RESET) {
-		dev->mei_state = MEI_POWER_DOWN;
+	if (dev->dev_state == MEI_DEV_ENABLED ||
+	    dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET) {
+		dev->dev_state = MEI_DEV_POWER_DOWN;
 		mei_reset(dev, 0);
 	}
 	mutex_unlock(&dev->device_lock);
@@ -1142,12 +1160,12 @@ static int mei_pci_resume(struct device *device)
 		err = request_threaded_irq(pdev->irq,
 			NULL,
 			mei_interrupt_thread_handler,
-			IRQF_ONESHOT, mei_driver_name, dev);
+			IRQF_ONESHOT, KBUILD_MODNAME, dev);
 	else
 		err = request_threaded_irq(pdev->irq,
 			mei_interrupt_quick_handler,
 			mei_interrupt_thread_handler,
-			IRQF_SHARED, mei_driver_name, dev);
+			IRQF_SHARED, KBUILD_MODNAME, dev);
 
 	if (err) {
 		dev_err(&pdev->dev, "request_threaded_irq failed: irq = %d.\n",
@@ -1156,7 +1174,7 @@ static int mei_pci_resume(struct device *device)
 	}
 
 	mutex_lock(&dev->device_lock);
-	dev->mei_state = MEI_POWER_UP;
+	dev->dev_state = MEI_DEV_POWER_UP;
 	mei_reset(dev, 1);
 	mutex_unlock(&dev->device_lock);
 
@@ -1174,7 +1192,7 @@ static SIMPLE_DEV_PM_OPS(mei_pm_ops, mei_pci_suspend, mei_pci_resume);
  *  PCI driver structure
  */
 static struct pci_driver mei_driver = {
-	.name = mei_driver_name,
+	.name = KBUILD_MODNAME,
 	.id_table = mei_pci_tbl,
 	.probe = mei_probe,
 	.remove = __devexit_p(mei_remove),
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index d61c4ddfc80..adb35fb9281 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -25,18 +25,20 @@
 /*
  * watch dog definition
  */
-#define MEI_WATCHDOG_DATA_SIZE         16
-#define MEI_START_WD_DATA_SIZE         20
-#define MEI_WD_PARAMS_SIZE             4
+#define MEI_WD_HDR_SIZE       4
+#define MEI_WD_STOP_MSG_SIZE  MEI_WD_HDR_SIZE
+#define MEI_WD_START_MSG_SIZE (MEI_WD_HDR_SIZE + 16)
+
+#define MEI_WD_DEFAULT_TIMEOUT   120  /* seconds */
+#define MEI_WD_MIN_TIMEOUT       120  /* seconds */
+#define MEI_WD_MAX_TIMEOUT     65535  /* seconds */
+
+#define MEI_WD_STOP_TIMEOUT      10 /* msecs */
+
 #define MEI_WD_STATE_INDEPENDENCE_MSG_SENT       (1 << 0)
 
 #define MEI_RD_MSG_BUF_SIZE           (128 * sizeof(u32))
 
-/*
- * MEI PCI Device object
- */
-extern struct pci_dev *mei_device;
-
 
 /*
  * AMTHI Client UUID
@@ -54,19 +56,21 @@ extern const uuid_le mei_wd_guid;
 extern const u8 mei_wd_state_independence_msg[3][4];
 
 /*
+ * Number of Maximum MEI Clients
+ */
+#define MEI_CLIENTS_MAX 256
+
+/*
  * Number of File descriptors/handles
  * that can be opened to the driver.
  *
- * Limit to 253: 255 Total Clients
+ * Limit to 253: 256 Total Clients
+ * minus internal client for MEI Bus Messags
  * minus internal client for AMTHI
  * minus internal client for Watchdog
  */
-#define  MEI_MAX_OPEN_HANDLE_COUNT	253
+#define  MEI_MAX_OPEN_HANDLE_COUNT (MEI_CLIENTS_MAX - 3)
 
-/*
- * Number of Maximum MEI Clients
- */
-#define MEI_CLIENTS_MAX 255
 
 /* File state */
 enum file_state {
@@ -78,17 +82,19 @@ enum file_state {
 };
 
 /* MEI device states */
-enum mei_states {
-	MEI_INITIALIZING = 0,
-	MEI_INIT_CLIENTS,
-	MEI_ENABLED,
-	MEI_RESETING,
-	MEI_DISABLED,
-	MEI_RECOVERING_FROM_RESET,
-	MEI_POWER_DOWN,
-	MEI_POWER_UP
+enum mei_dev_state {
+	MEI_DEV_INITIALIZING = 0,
+	MEI_DEV_INIT_CLIENTS,
+	MEI_DEV_ENABLED,
+	MEI_DEV_RESETING,
+	MEI_DEV_DISABLED,
+	MEI_DEV_RECOVERING_FROM_RESET,
+	MEI_DEV_POWER_DOWN,
+	MEI_DEV_POWER_UP
 };
 
+const char *mei_dev_state_str(int state);
+
 /* init clients states*/
 enum mei_init_clients_states {
 	MEI_START_MESSAGE = 0,
@@ -113,6 +119,12 @@ enum mei_file_transaction_states {
 	MEI_READ_COMPLETE
 };
 
+enum mei_wd_states {
+	MEI_WD_IDLE,
+	MEI_WD_RUNNING,
+	MEI_WD_STOPPING,
+};
+
 /* MEI CB */
 enum mei_cb_major_types {
 	MEI_READ = 0,
@@ -128,7 +140,7 @@ enum mei_cb_major_types {
 struct mei_message_data {
 	u32 size;
 	unsigned char *data;
-} __packed;
+};
 
 
 struct mei_cl_cb {
@@ -218,10 +230,9 @@ struct mei_device {
 	/*
 	 * mei device  states
 	 */
-	enum mei_states mei_state;
+	enum mei_dev_state dev_state;
 	enum mei_init_clients_states init_clients_state;
 	u16 init_clients_timer;
-	bool stop;
 	bool need_reset;
 
 	u32 extra_write_index;
@@ -241,12 +252,11 @@ struct mei_device {
 	bool mei_host_buffer_is_empty;
 
 	struct mei_cl wd_cl;
+	enum mei_wd_states wd_state;
 	bool wd_interface_reg;
 	bool wd_pending;
-	bool wd_stopped;
-	bool wd_bypass;	/* if false, don't refresh watchdog ME client */
-	u16 wd_timeout;	/* seconds ((wd_data[1] << 8) + wd_data[0]) */
-	unsigned char wd_data[MEI_START_WD_DATA_SIZE];
+	u16 wd_timeout;
+	unsigned char wd_data[MEI_WD_START_MSG_SIZE];
 
 
 	struct file *iamthif_file_object;
@@ -279,9 +289,10 @@ void mei_host_init_iamthif(struct mei_device *dev);
 void mei_allocate_me_clients_storage(struct mei_device *dev);
 
 
-u8 mei_find_me_client_update_filext(struct mei_device *dev,
-				struct mei_cl *priv,
-				const uuid_le *cguid, u8 client_id);
+int mei_me_cl_update_filext(struct mei_device *dev, struct mei_cl *cl,
+			const uuid_le *cguid, u8 host_client_id);
+int mei_me_cl_by_uuid(const struct mei_device *dev, const uuid_le *cuuid);
+int mei_me_cl_by_id(struct mei_device *dev, u8 client_id);
 
 /*
  * MEI IO List Functions
@@ -348,7 +359,6 @@ void mei_run_next_iamthif_cmd(struct mei_device *dev);
 
 void mei_free_cb_private(struct mei_cl_cb *priv_cb);
 
-int mei_find_me_client_index(const struct mei_device *dev, uuid_le cuuid);
 
 /*
  * Register Access Function
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index 5133fd77b91..d96c537f046 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -48,8 +48,8 @@ const uuid_le mei_wd_guid = UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, 0x89,
 static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
 {
 	dev_dbg(&dev->pdev->dev, "wd: set timeout=%d.\n", timeout);
-	memcpy(dev->wd_data, mei_start_wd_params, MEI_WD_PARAMS_SIZE);
-	memcpy(dev->wd_data + MEI_WD_PARAMS_SIZE, &timeout, sizeof(u16));
+	memcpy(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE);
+	memcpy(dev->wd_data + MEI_WD_HDR_SIZE, &timeout, sizeof(u16));
 }
 
 /**
@@ -66,10 +66,11 @@ int mei_wd_host_init(struct mei_device *dev)
 
 	/* look for WD client and connect to it */
 	dev->wd_cl.state = MEI_FILE_DISCONNECTED;
-	dev->wd_timeout = AMT_WD_DEFAULT_TIMEOUT;
+	dev->wd_timeout = MEI_WD_DEFAULT_TIMEOUT;
+	dev->wd_state = MEI_WD_IDLE;
 
 	/* find ME WD client */
-	mei_find_me_client_update_filext(dev, &dev->wd_cl,
+	mei_me_cl_update_filext(dev, &dev->wd_cl,
 				&mei_wd_guid, MEI_WD_HOST_CLIENT_ID);
 
 	dev_dbg(&dev->pdev->dev, "wd: check client\n");
@@ -108,10 +109,10 @@ int mei_wd_send(struct mei_device *dev)
 	mei_hdr->msg_complete = 1;
 	mei_hdr->reserved = 0;
 
-	if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_PARAMS_SIZE))
-		mei_hdr->length = MEI_START_WD_DATA_SIZE;
-	else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE))
-		mei_hdr->length = MEI_WD_PARAMS_SIZE;
+	if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE))
+		mei_hdr->length = MEI_WD_START_MSG_SIZE;
+	else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE))
+		mei_hdr->length = MEI_WD_STOP_MSG_SIZE;
 	else
 		return -EINVAL;
 
@@ -128,18 +129,17 @@ int mei_wd_send(struct mei_device *dev)
  *	-EIO when message send fails
  *	-EINVAL when invalid message is to be sent
  */
-int mei_wd_stop(struct mei_device *dev, bool preserve)
+int mei_wd_stop(struct mei_device *dev)
 {
 	int ret;
-	u16 wd_timeout = dev->wd_timeout;
 
-	cancel_delayed_work(&dev->timer_work);
-	if (dev->wd_cl.state != MEI_FILE_CONNECTED || !dev->wd_timeout)
+	if (dev->wd_cl.state != MEI_FILE_CONNECTED ||
+	    dev->wd_state != MEI_WD_RUNNING)
 		return 0;
 
-	dev->wd_timeout = 0;
-	memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE);
-	dev->stop = true;
+	memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_STOP_MSG_SIZE);
+
+	dev->wd_state = MEI_WD_STOPPING;
 
 	ret = mei_flow_ctrl_creds(dev, &dev->wd_cl);
 	if (ret < 0)
@@ -161,13 +161,14 @@ int mei_wd_stop(struct mei_device *dev, bool preserve)
 	} else {
 		dev->wd_pending = true;
 	}
-	dev->wd_stopped = false;
+
 	mutex_unlock(&dev->device_lock);
 
 	ret = wait_event_interruptible_timeout(dev->wait_stop_wd,
-					dev->wd_stopped, 10 * HZ);
+					dev->wd_state == MEI_WD_IDLE,
+					msecs_to_jiffies(MEI_WD_STOP_TIMEOUT));
 	mutex_lock(&dev->device_lock);
-	if (dev->wd_stopped) {
+	if (dev->wd_state == MEI_WD_IDLE) {
 		dev_dbg(&dev->pdev->dev, "wd: stop completed ret=%d.\n", ret);
 		ret = 0;
 	} else {
@@ -177,9 +178,6 @@ int mei_wd_stop(struct mei_device *dev, bool preserve)
 			"wd: stop failed to complete ret=%d.\n", ret);
 	}
 
-	if (preserve)
-		dev->wd_timeout = wd_timeout;
-
 out:
 	return ret;
 }
@@ -196,16 +194,16 @@ static int mei_wd_ops_start(struct watchdog_device *wd_dev)
 	int err = -ENODEV;
 	struct mei_device *dev;
 
-	dev = pci_get_drvdata(mei_device);
+	dev = watchdog_get_drvdata(wd_dev);
 	if (!dev)
 		return -ENODEV;
 
 	mutex_lock(&dev->device_lock);
 
-	if (dev->mei_state != MEI_ENABLED) {
+	if (dev->dev_state != MEI_DEV_ENABLED) {
 		dev_dbg(&dev->pdev->dev,
-			"wd: mei_state != MEI_ENABLED  mei_state = %d\n",
-			dev->mei_state);
+			"wd: dev_state != MEI_DEV_ENABLED  dev_state = %s\n",
+			mei_dev_state_str(dev->dev_state));
 		goto end_unlock;
 	}
 
@@ -233,13 +231,13 @@ end_unlock:
 static int mei_wd_ops_stop(struct watchdog_device *wd_dev)
 {
 	struct mei_device *dev;
-	dev = pci_get_drvdata(mei_device);
 
+	dev = watchdog_get_drvdata(wd_dev);
 	if (!dev)
 		return -ENODEV;
 
 	mutex_lock(&dev->device_lock);
-	mei_wd_stop(dev, false);
+	mei_wd_stop(dev);
 	mutex_unlock(&dev->device_lock);
 
 	return 0;
@@ -256,8 +254,8 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev)
 {
 	int ret = 0;
 	struct mei_device *dev;
-	dev = pci_get_drvdata(mei_device);
 
+	dev = watchdog_get_drvdata(wd_dev);
 	if (!dev)
 		return -ENODEV;
 
@@ -269,6 +267,8 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev)
 		goto end;
 	}
 
+	dev->wd_state = MEI_WD_RUNNING;
+
 	/* Check if we can send the ping to HW*/
 	if (dev->mei_host_buffer_is_empty &&
 		mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) {
@@ -309,13 +309,13 @@ end:
 static int mei_wd_ops_set_timeout(struct watchdog_device *wd_dev, unsigned int timeout)
 {
 	struct mei_device *dev;
-	dev = pci_get_drvdata(mei_device);
 
+	dev = watchdog_get_drvdata(wd_dev);
 	if (!dev)
 		return -ENODEV;
 
 	/* Check Timeout value */
-	if (timeout < AMT_WD_MIN_TIMEOUT || timeout > AMT_WD_MAX_TIMEOUT)
+	if (timeout < MEI_WD_MIN_TIMEOUT || timeout > MEI_WD_MAX_TIMEOUT)
 		return -EINVAL;
 
 	mutex_lock(&dev->device_lock);
@@ -341,37 +341,42 @@ static const struct watchdog_ops wd_ops = {
 };
 static const struct watchdog_info wd_info = {
 		.identity = INTEL_AMT_WATCHDOG_ID,
-		.options = WDIOF_KEEPALIVEPING | WDIOF_ALARMONLY,
+		.options = WDIOF_KEEPALIVEPING |
+			   WDIOF_SETTIMEOUT |
+			   WDIOF_ALARMONLY,
 };
 
 static struct watchdog_device amt_wd_dev = {
 		.info = &wd_info,
 		.ops = &wd_ops,
-		.timeout = AMT_WD_DEFAULT_TIMEOUT,
-		.min_timeout = AMT_WD_MIN_TIMEOUT,
-		.max_timeout = AMT_WD_MAX_TIMEOUT,
+		.timeout = MEI_WD_DEFAULT_TIMEOUT,
+		.min_timeout = MEI_WD_MIN_TIMEOUT,
+		.max_timeout = MEI_WD_MAX_TIMEOUT,
 };
 
 
-void  mei_watchdog_register(struct mei_device *dev)
+void mei_watchdog_register(struct mei_device *dev)
 {
-	dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout);
-
 	if (watchdog_register_device(&amt_wd_dev)) {
 		dev_err(&dev->pdev->dev,
 			"wd: unable to register watchdog device.\n");
 		dev->wd_interface_reg = false;
-	} else {
-		dev_dbg(&dev->pdev->dev,
-			"wd: successfully register watchdog interface.\n");
-		dev->wd_interface_reg = true;
+		return;
 	}
+
+	dev_dbg(&dev->pdev->dev,
+		"wd: successfully register watchdog interface.\n");
+	dev->wd_interface_reg = true;
+	watchdog_set_drvdata(&amt_wd_dev, dev);
 }
 
 void mei_watchdog_unregister(struct mei_device *dev)
 {
-	if (dev->wd_interface_reg)
-		watchdog_unregister_device(&amt_wd_dev);
+	if (!dev->wd_interface_reg)
+		return;
+
+	watchdog_set_drvdata(&amt_wd_dev, NULL);
+	watchdog_unregister_device(&amt_wd_dev);
 	dev->wd_interface_reg = false;
 }
 
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 9fbcacd703d..c9f20dae185 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -699,7 +699,7 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev,
 	chip->pch_phub_base_address = pci_iomap(pdev, 1, 0);
 
 
-	if (chip->pch_phub_base_address == 0) {
+	if (chip->pch_phub_base_address == NULL) {
 		dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__);
 		ret = -ENOMEM;
 		goto err_pci_iomap;
@@ -893,18 +893,7 @@ static struct pci_driver pch_phub_driver = {
 	.resume = pch_phub_resume
 };
 
-static int __init pch_phub_pci_init(void)
-{
-	return pci_register_driver(&pch_phub_driver);
-}
-
-static void __exit pch_phub_pci_exit(void)
-{
-	pci_unregister_driver(&pch_phub_driver);
-}
-
-module_init(pch_phub_pci_init);
-module_exit(pch_phub_pci_exit);
+module_pci_driver(pch_phub_driver);
 
 MODULE_DESCRIPTION("Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7223) PHUB");
 MODULE_LICENSE("GPL");
diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c
index b7eb545394b..4999b34b7a6 100644
--- a/drivers/misc/pti.c
+++ b/drivers/misc/pti.c
@@ -60,7 +60,7 @@ struct pti_tty {
 };
 
 struct pti_dev {
-	struct tty_port port;
+	struct tty_port port[PTITTY_MINOR_NUM];
 	unsigned long pti_addr;
 	unsigned long aperture_base;
 	void __iomem *pti_ioaddr;
@@ -76,7 +76,7 @@ struct pti_dev {
  */
 static DEFINE_MUTEX(alloclock);
 
-static struct pci_device_id pci_ids[] __devinitconst = {
+static const struct pci_device_id pci_ids[] __devinitconst = {
 		{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x82B)},
 		{0}
 };
@@ -393,25 +393,6 @@ void pti_writedata(struct pti_masterchannel *mc, u8 *buf, int count)
 }
 EXPORT_SYMBOL_GPL(pti_writedata);
 
-/**
- * pti_pci_remove()- Driver exit method to remove PTI from
- *		   PCI bus.
- * @pdev: variable containing pci info of PTI.
- */
-static void __devexit pti_pci_remove(struct pci_dev *pdev)
-{
-	struct pti_dev *drv_data;
-
-	drv_data = pci_get_drvdata(pdev);
-	if (drv_data != NULL) {
-		pci_iounmap(pdev, drv_data->pti_ioaddr);
-		pci_set_drvdata(pdev, NULL);
-		kfree(drv_data);
-		pci_release_region(pdev, 1);
-		pci_disable_device(pdev);
-	}
-}
-
 /*
  * for the tty_driver_*() basic function descriptions, see tty_driver.h.
  * Specific header comments made for PTI-related specifics.
@@ -446,7 +427,7 @@ static int pti_tty_driver_open(struct tty_struct *tty, struct file *filp)
 	 * also removes a locking requirement for the actual write
 	 * procedure.
 	 */
-	return tty_port_open(&drv_data->port, tty, filp);
+	return tty_port_open(tty->port, tty, filp);
 }
 
 /**
@@ -462,7 +443,7 @@ static int pti_tty_driver_open(struct tty_struct *tty, struct file *filp)
  */
 static void pti_tty_driver_close(struct tty_struct *tty, struct file *filp)
 {
-	tty_port_close(&drv_data->port, tty, filp);
+	tty_port_close(tty->port, tty, filp);
 }
 
 /**
@@ -818,6 +799,7 @@ static const struct tty_port_operations tty_port_ops = {
 static int __devinit pti_pci_probe(struct pci_dev *pdev,
 		const struct pci_device_id *ent)
 {
+	unsigned int a;
 	int retval = -EINVAL;
 	int pci_bar = 1;
 
@@ -830,7 +812,7 @@ static int __devinit pti_pci_probe(struct pci_dev *pdev,
 			__func__, __LINE__);
 		pr_err("%s(%d): Error value returned: %d\n",
 			__func__, __LINE__, retval);
-		return retval;
+		goto err;
 	}
 
 	retval = pci_enable_device(pdev);
@@ -838,17 +820,16 @@ static int __devinit pti_pci_probe(struct pci_dev *pdev,
 		dev_err(&pdev->dev,
 			"%s: pci_enable_device() returned error %d\n",
 			__func__, retval);
-		return retval;
+		goto err_unreg_misc;
 	}
 
 	drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL);
-
 	if (drv_data == NULL) {
 		retval = -ENOMEM;
 		dev_err(&pdev->dev,
 			"%s(%d): kmalloc() returned NULL memory.\n",
 			__func__, __LINE__);
-		return retval;
+		goto err_disable_pci;
 	}
 	drv_data->pti_addr = pci_resource_start(pdev, pci_bar);
 
@@ -857,33 +838,65 @@ static int __devinit pti_pci_probe(struct pci_dev *pdev,
 		dev_err(&pdev->dev,
 			"%s(%d): pci_request_region() returned error %d\n",
 			__func__, __LINE__, retval);
-		kfree(drv_data);
-		return retval;
+		goto err_free_dd;
 	}
 	drv_data->aperture_base = drv_data->pti_addr+APERTURE_14;
 	drv_data->pti_ioaddr =
 		ioremap_nocache((u32)drv_data->aperture_base,
 		APERTURE_LEN);
 	if (!drv_data->pti_ioaddr) {
-		pci_release_region(pdev, pci_bar);
 		retval = -ENOMEM;
-		kfree(drv_data);
-		return retval;
+		goto err_rel_reg;
 	}
 
 	pci_set_drvdata(pdev, drv_data);
 
-	tty_port_init(&drv_data->port);
-	drv_data->port.ops = &tty_port_ops;
+	for (a = 0; a < PTITTY_MINOR_NUM; a++) {
+		struct tty_port *port = &drv_data->port[a];
+		tty_port_init(port);
+		port->ops = &tty_port_ops;
 
-	tty_register_device(pti_tty_driver, 0, &pdev->dev);
-	tty_register_device(pti_tty_driver, 1, &pdev->dev);
+		tty_port_register_device(port, pti_tty_driver, a, &pdev->dev);
+	}
 
 	register_console(&pti_console);
 
+	return 0;
+err_rel_reg:
+	pci_release_region(pdev, pci_bar);
+err_free_dd:
+	kfree(drv_data);
+err_disable_pci:
+	pci_disable_device(pdev);
+err_unreg_misc:
+	misc_deregister(&pti_char_driver);
+err:
 	return retval;
 }
 
+/**
+ * pti_pci_remove()- Driver exit method to remove PTI from
+ *		   PCI bus.
+ * @pdev: variable containing pci info of PTI.
+ */
+static void __devexit pti_pci_remove(struct pci_dev *pdev)
+{
+	struct pti_dev *drv_data = pci_get_drvdata(pdev);
+
+	unregister_console(&pti_console);
+
+	tty_unregister_device(pti_tty_driver, 0);
+	tty_unregister_device(pti_tty_driver, 1);
+
+	iounmap(drv_data->pti_ioaddr);
+	pci_set_drvdata(pdev, NULL);
+	kfree(drv_data);
+	pci_release_region(pdev, 1);
+	pci_disable_device(pdev);
+
+	misc_deregister(&pti_char_driver);
+}
+
 static struct pci_driver pti_pci_driver = {
 	.name		= PCINAME,
 	.id_table	= pci_ids,
@@ -933,25 +946,24 @@ static int __init pti_init(void)
 		pr_err("%s(%d): Error value returned: %d\n",
 			__func__, __LINE__, retval);
 
-		pti_tty_driver = NULL;
-		return retval;
+		goto put_tty;
 	}
 
 	retval = pci_register_driver(&pti_pci_driver);
-
 	if (retval) {
 		pr_err("%s(%d): PCI registration failed of pti driver\n",
 			__func__, __LINE__);
 		pr_err("%s(%d): Error value returned: %d\n",
 			__func__, __LINE__, retval);
-
-		tty_unregister_driver(pti_tty_driver);
-		pr_err("%s(%d): Unregistering TTY part of pti driver\n",
-			__func__, __LINE__);
-		pti_tty_driver = NULL;
-		return retval;
+		goto unreg_tty;
 	}
 
+	return 0;
+unreg_tty:
+	tty_unregister_driver(pti_tty_driver);
+put_tty:
+	put_tty_driver(pti_tty_driver);
+	pti_tty_driver = NULL;
 	return retval;
 }
 
@@ -960,31 +972,9 @@ static int __init pti_init(void)
  */
 static void __exit pti_exit(void)
 {
-	int retval;
-
-	tty_unregister_device(pti_tty_driver, 0);
-	tty_unregister_device(pti_tty_driver, 1);
-
-	retval = tty_unregister_driver(pti_tty_driver);
-	if (retval) {
-		pr_err("%s(%d): TTY unregistration failed of pti driver\n",
-			__func__, __LINE__);
-		pr_err("%s(%d): Error value returned: %d\n",
-			__func__, __LINE__, retval);
-	}
-
+	tty_unregister_driver(pti_tty_driver);
 	pci_unregister_driver(&pti_pci_driver);
-
-	retval = misc_deregister(&pti_char_driver);
-	if (retval) {
-		pr_err("%s(%d): CHAR unregistration failed of pti driver\n",
-			__func__, __LINE__);
-		pr_err("%s(%d): Error value returned: %d\n",
-			__func__, __LINE__, retval);
-	}
-
-	unregister_console(&pti_console);
-	return;
+	put_tty_driver(pti_tty_driver);
 }
 
 module_init(pti_init);
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 87b251ab6ec..b9e2000969f 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -18,6 +18,8 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/cpu.h>
+#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <asm/uv/uv_hub.h>
@@ -59,6 +61,8 @@ static struct xpc_heartbeat_uv *xpc_heartbeat_uv;
 					 XPC_NOTIFY_MSG_SIZE_UV)
 #define XPC_NOTIFY_IRQ_NAME		"xpc_notify"
 
+static int xpc_mq_node = -1;
+
 static struct xpc_gru_mq_uv *xpc_activate_mq_uv;
 static struct xpc_gru_mq_uv *xpc_notify_mq_uv;
 
@@ -109,11 +113,8 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)
 #if defined CONFIG_X86_64
 	mq->irq = uv_setup_irq(irq_name, cpu, mq->mmr_blade, mq->mmr_offset,
 			UV_AFFINITY_CPU);
-	if (mq->irq < 0) {
-		dev_err(xpc_part, "uv_setup_irq() returned error=%d\n",
-			-mq->irq);
+	if (mq->irq < 0)
 		return mq->irq;
-	}
 
 	mq->mmr_value = uv_read_global_mmr64(mmr_pnode, mq->mmr_offset);
 
@@ -238,8 +239,9 @@ xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name,
 	mq->mmr_blade = uv_cpu_to_blade_id(cpu);
 
 	nid = cpu_to_node(cpu);
-	page = alloc_pages_exact_node(nid, GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
-				pg_order);
+	page = alloc_pages_exact_node(nid,
+				      GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
+				      pg_order);
 	if (page == NULL) {
 		dev_err(xpc_part, "xpc_create_gru_mq_uv() failed to alloc %d "
 			"bytes of memory on nid=%d for GRU mq\n", mq_size, nid);
@@ -1731,9 +1733,50 @@ static struct xpc_arch_operations xpc_arch_ops_uv = {
 	.notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv,
 };
 
+static int
+xpc_init_mq_node(int nid)
+{
+	int cpu;
+
+	get_online_cpus();
+
+	for_each_cpu(cpu, cpumask_of_node(nid)) {
+		xpc_activate_mq_uv =
+			xpc_create_gru_mq_uv(XPC_ACTIVATE_MQ_SIZE_UV, nid,
+					     XPC_ACTIVATE_IRQ_NAME,
+					     xpc_handle_activate_IRQ_uv);
+		if (!IS_ERR(xpc_activate_mq_uv))
+			break;
+	}
+	if (IS_ERR(xpc_activate_mq_uv)) {
+		put_online_cpus();
+		return PTR_ERR(xpc_activate_mq_uv);
+	}
+
+	for_each_cpu(cpu, cpumask_of_node(nid)) {
+		xpc_notify_mq_uv =
+			xpc_create_gru_mq_uv(XPC_NOTIFY_MQ_SIZE_UV, nid,
+					     XPC_NOTIFY_IRQ_NAME,
+					     xpc_handle_notify_IRQ_uv);
+		if (!IS_ERR(xpc_notify_mq_uv))
+			break;
+	}
+	if (IS_ERR(xpc_notify_mq_uv)) {
+		xpc_destroy_gru_mq_uv(xpc_activate_mq_uv);
+		put_online_cpus();
+		return PTR_ERR(xpc_notify_mq_uv);
+	}
+
+	put_online_cpus();
+	return 0;
+}
+
 int
 xpc_init_uv(void)
 {
+	int nid;
+	int ret = 0;
+
 	xpc_arch_ops = xpc_arch_ops_uv;
 
 	if (sizeof(struct xpc_notify_mq_msghdr_uv) > XPC_MSG_HDR_MAX_SIZE) {
@@ -1742,21 +1785,21 @@ xpc_init_uv(void)
 		return -E2BIG;
 	}
 
-	xpc_activate_mq_uv = xpc_create_gru_mq_uv(XPC_ACTIVATE_MQ_SIZE_UV, 0,
-						  XPC_ACTIVATE_IRQ_NAME,
-						  xpc_handle_activate_IRQ_uv);
-	if (IS_ERR(xpc_activate_mq_uv))
-		return PTR_ERR(xpc_activate_mq_uv);
+	if (xpc_mq_node < 0)
+		for_each_online_node(nid) {
+			ret = xpc_init_mq_node(nid);
 
-	xpc_notify_mq_uv = xpc_create_gru_mq_uv(XPC_NOTIFY_MQ_SIZE_UV, 0,
-						XPC_NOTIFY_IRQ_NAME,
-						xpc_handle_notify_IRQ_uv);
-	if (IS_ERR(xpc_notify_mq_uv)) {
-		xpc_destroy_gru_mq_uv(xpc_activate_mq_uv);
-		return PTR_ERR(xpc_notify_mq_uv);
-	}
+			if (!ret)
+				break;
+		}
+	else
+		ret = xpc_init_mq_node(xpc_mq_node);
 
-	return 0;
+	if (ret < 0)
+		dev_err(xpc_part, "xpc_init_mq_node() returned error=%d\n",
+			-ret);
+
+	return ret;
 }
 
 void
@@ -1765,3 +1808,6 @@ xpc_exit_uv(void)
 	xpc_destroy_gru_mq_uv(xpc_notify_mq_uv);
 	xpc_destroy_gru_mq_uv(xpc_activate_mq_uv);
 }
+
+module_param(xpc_mq_node, int, 0);
+MODULE_PARM_DESC(xpc_mq_node, "Node number on which to allocate message queues.");
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index acfaeeb9e01..46937b10726 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -30,11 +30,13 @@
 
 #include <linux/ti_wilink_st.h>
 
+extern void st_kim_recv(void *, const unsigned char *, long);
+void st_int_recv(void *, const unsigned char *, long);
 /* function pointer pointing to either,
  * st_kim_recv during registration to receive fw download responses
  * st_int_recv after registration to receive proto stack responses
  */
-void (*st_recv) (void*, const unsigned char*, long);
+static void (*st_recv) (void *, const unsigned char *, long);
 
 /********************************************************************/
 static void add_channel_to_table(struct st_data_s *st_gdata,
@@ -100,7 +102,7 @@ int st_int_write(struct st_data_s *st_gdata,
  * push the skb received to relevant
  * protocol stacks
  */
-void st_send_frame(unsigned char chnl_id, struct st_data_s *st_gdata)
+static void st_send_frame(unsigned char chnl_id, struct st_data_s *st_gdata)
 {
 	pr_debug(" %s(prot:%d) ", __func__, chnl_id);
 
@@ -140,7 +142,7 @@ void st_send_frame(unsigned char chnl_id, struct st_data_s *st_gdata)
  * This function is being called with spin lock held, protocol drivers are
  * only expected to complete their waits and do nothing more than that.
  */
-void st_reg_complete(struct st_data_s *st_gdata, char err)
+static void st_reg_complete(struct st_data_s *st_gdata, char err)
 {
 	unsigned char i = 0;
 	pr_info(" %s ", __func__);
@@ -379,7 +381,7 @@ done:
  *	completely, return that skb which has the pending data.
  *	In normal cases, return top of txq.
  */
-struct sk_buff *st_int_dequeue(struct st_data_s *st_gdata)
+static struct sk_buff *st_int_dequeue(struct st_data_s *st_gdata)
 {
 	struct sk_buff *returning_skb;
 
@@ -401,7 +403,7 @@ struct sk_buff *st_int_dequeue(struct st_data_s *st_gdata)
  *	txq and waitq needs protection since the other contexts
  *	may be sending data, waking up chip.
  */
-void st_int_enqueue(struct st_data_s *st_gdata, struct sk_buff *skb)
+static void st_int_enqueue(struct st_data_s *st_gdata, struct sk_buff *skb)
 {
 	unsigned long flags = 0;
 
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 7c14f8fd98d..04a819944f6 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -63,10 +63,27 @@ static struct platform_device *st_get_plat_device(int id)
  *	in case of error don't complete so that waiting for proper
  *	response times out
  */
-void validate_firmware_response(struct kim_data_s *kim_gdata)
+static void validate_firmware_response(struct kim_data_s *kim_gdata)
 {
 	struct sk_buff *skb = kim_gdata->rx_skb;
-	if (unlikely(skb->data[5] != 0)) {
+	if (!skb)
+		return;
+
+	/* these magic numbers are the position in the response buffer which
+	 * allows us to distinguish whether the response is for the read
+	 * version info. command
+	 */
+	if (skb->data[2] == 0x01 && skb->data[3] == 0x01 &&
+			skb->data[4] == 0x10 && skb->data[5] == 0x00) {
+		/* fw version response */
+		memcpy(kim_gdata->resp_buffer,
+				kim_gdata->rx_skb->data,
+				kim_gdata->rx_skb->len);
+		complete_all(&kim_gdata->kim_rcvd);
+		kim_gdata->rx_state = ST_W4_PACKET_TYPE;
+		kim_gdata->rx_skb = NULL;
+		kim_gdata->rx_count = 0;
+	} else if (unlikely(skb->data[5] != 0)) {
 		pr_err("no proper response during fw download");
 		pr_err("data6 %x", skb->data[5]);
 		kfree_skb(skb);
@@ -119,7 +136,7 @@ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len)
  *	have been observed to come in bursts of different
  *	tty_receive and hence the logic
  */
-void kim_int_recv(struct kim_data_s *kim_gdata,
+static void kim_int_recv(struct kim_data_s *kim_gdata,
 	const unsigned char *data, long count)
 {
 	const unsigned char *ptr;
@@ -207,16 +224,19 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 		return -EIO;
 	}
 
-	if (!wait_for_completion_timeout
-	    (&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) {
+	if (!wait_for_completion_interruptible_timeout(
+		&kim_gdata->kim_rcvd, msecs_to_jiffies(CMD_RESP_TIME))) {
 		pr_err(" waiting for ver info- timed out ");
 		return -ETIMEDOUT;
 	}
 	INIT_COMPLETION(kim_gdata->kim_rcvd);
+	/* the positions 12 & 13 in the response buffer provide with the
+	 * chip, major & minor numbers
+	 */
 
 	version =
-		MAKEWORD(kim_gdata->resp_buffer[13],
-				kim_gdata->resp_buffer[14]);
+		MAKEWORD(kim_gdata->resp_buffer[12],
+				kim_gdata->resp_buffer[13]);
 	chip = (version & 0x7C00) >> 10;
 	min_ver = (version & 0x007F);
 	maj_ver = (version & 0x0380) >> 7;
@@ -236,7 +256,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 	return 0;
 }
 
-void skip_change_remote_baud(unsigned char **ptr, long *len)
+static void skip_change_remote_baud(unsigned char **ptr, long *len)
 {
 	unsigned char *nxt_action, *cur_action;
 	cur_action = *ptr;
@@ -370,9 +390,9 @@ static long download_firmware(struct kim_data_s *kim_gdata)
 			break;
 		case ACTION_WAIT_EVENT:  /* wait */
 			pr_debug("W");
-			if (!wait_for_completion_timeout
-					(&kim_gdata->kim_rcvd,
-					 msecs_to_jiffies(CMD_RESP_TIME))) {
+			if (!wait_for_completion_interruptible_timeout(
+					&kim_gdata->kim_rcvd,
+					msecs_to_jiffies(CMD_RESP_TIME))) {
 				pr_err("response timeout during fw download ");
 				/* timed out */
 				release_firmware(kim_gdata->fw_entry);
@@ -410,16 +430,10 @@ void st_kim_recv(void *disc_data, const unsigned char *data, long count)
 	struct st_data_s	*st_gdata = (struct st_data_s *)disc_data;
 	struct kim_data_s	*kim_gdata = st_gdata->kim_data;
 
-	/* copy to local buffer */
-	if (unlikely(data[4] == 0x01 && data[5] == 0x10 && data[0] == 0x04)) {
-		/* must be the read_ver_cmd */
-		memcpy(kim_gdata->resp_buffer, data, count);
-		complete_all(&kim_gdata->kim_rcvd);
-		return;
-	} else {
-		kim_int_recv(kim_gdata, data, count);
-		/* either completes or times out */
-	}
+	/* proceed to gather all data and distinguish read fw version response
+	 * from other fw responses when data gathering is complete
+	 */
+	kim_int_recv(kim_gdata, data, count);
 	return;
 }
 
@@ -454,11 +468,6 @@ long st_kim_start(void *kim_data)
 		if (pdata->chip_enable)
 			pdata->chip_enable(kim_gdata);
 
-		/* Configure BT nShutdown to HIGH state */
-		gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
-		mdelay(5);	/* FIXME: a proper toggle */
-		gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
-		mdelay(100);
 		/* re-initialize the completion */
 		INIT_COMPLETION(kim_gdata->ldisc_installed);
 		/* send notification to UIM */
@@ -467,8 +476,8 @@ long st_kim_start(void *kim_data)
 		sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,
 				NULL, "install");
 		/* wait for ldisc to be installed */
-		err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
-				msecs_to_jiffies(LDISC_TIME));
+		err = wait_for_completion_interruptible_timeout(
+			&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));
 		if (!err) {
 			/* ldisc installation timeout,
 			 * flush uart, power cycle BT_EN */
@@ -500,8 +509,7 @@ long st_kim_start(void *kim_data)
  *	(b) upon failure to either install ldisc or download firmware.
  *	The function is responsible to (a) notify UIM about un-installation,
  *	(b) flush UART if the ldisc was installed.
- *	(c) reset BT_EN - pull down nshutdown at the end.
- *	(d) invoke platform's chip disabling routine.
+ *	(c) invoke platform's chip disabling routine.
  */
 long st_kim_stop(void *kim_data)
 {
@@ -526,20 +534,13 @@ long st_kim_stop(void *kim_data)
 	sysfs_notify(&kim_gdata->kim_pdev->dev.kobj, NULL, "install");
 
 	/* wait for ldisc to be un-installed */
-	err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
-			msecs_to_jiffies(LDISC_TIME));
+	err = wait_for_completion_interruptible_timeout(
+		&kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME));
 	if (!err) {		/* timeout */
 		pr_err(" timed out waiting for ldisc to be un-installed");
-		return -ETIMEDOUT;
+		err = -ETIMEDOUT;
 	}
 
-	/* By default configure BT nShutdown to LOW state */
-	gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
-	mdelay(1);
-	gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
-	mdelay(1);
-	gpio_set_value(kim_gdata->nshutdown, GPIO_LOW);
-
 	/* platform specific disable */
 	if (pdata->chip_disable)
 		pdata->chip_disable(kim_gdata);
@@ -701,7 +702,7 @@ static const struct file_operations list_debugfs_fops = {
  * board-*.c file
  */
 
-struct dentry *kim_debugfs_dir;
+static struct dentry *kim_debugfs_dir;
 static int kim_probe(struct platform_device *pdev)
 {
 	long status;
@@ -731,20 +732,6 @@ static int kim_probe(struct platform_device *pdev)
 	/* refer to itself */
 	kim_gdata->core_data->kim_data = kim_gdata;
 
-	/* Claim the chip enable nShutdown gpio from the system */
-	kim_gdata->nshutdown = pdata->nshutdown_gpio;
-	status = gpio_request(kim_gdata->nshutdown, "kim");
-	if (unlikely(status)) {
-		pr_err(" gpio %ld request failed ", kim_gdata->nshutdown);
-		return status;
-	}
-
-	/* Configure nShutdown GPIO as output=0 */
-	status = gpio_direction_output(kim_gdata->nshutdown, 0);
-	if (unlikely(status)) {
-		pr_err(" unable to configure gpio %ld", kim_gdata->nshutdown);
-		return status;
-	}
 	/* get reference of pdev for request_firmware
 	 */
 	kim_gdata->kim_pdev = pdev;
@@ -780,18 +767,10 @@ static int kim_probe(struct platform_device *pdev)
 
 static int kim_remove(struct platform_device *pdev)
 {
-	/* free the GPIOs requested */
-	struct ti_st_plat_data	*pdata = pdev->dev.platform_data;
 	struct kim_data_s	*kim_gdata;
 
 	kim_gdata = dev_get_drvdata(&pdev->dev);
 
-	/* Free the Bluetooth/FM/GPIO
-	 * nShutdown gpio from the system
-	 */
-	gpio_free(pdata->nshutdown_gpio);
-	pr_info("nshutdown GPIO Freed");
-
 	debugfs_remove_recursive(kim_debugfs_dir);
 	sysfs_remove_group(&pdev->dev.kobj, &uim_attr_grp);
 	pr_info("sysfs entries removed");
@@ -804,7 +783,7 @@ static int kim_remove(struct platform_device *pdev)
 	return 0;
 }
 
-int kim_suspend(struct platform_device *pdev, pm_message_t state)
+static int kim_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct ti_st_plat_data	*pdata = pdev->dev.platform_data;
 
@@ -814,7 +793,7 @@ int kim_suspend(struct platform_device *pdev, pm_message_t state)
 	return -EOPNOTSUPP;
 }
 
-int kim_resume(struct platform_device *pdev)
+static int kim_resume(struct platform_device *pdev)
 {
 	struct ti_st_plat_data	*pdata = pdev->dev.platform_data;
 
diff --git a/drivers/misc/ti-st/st_ll.c b/drivers/misc/ti-st/st_ll.c
index 1ff460a8e9c..93b4d67cc4a 100644
--- a/drivers/misc/ti-st/st_ll.c
+++ b/drivers/misc/ti-st/st_ll.c
@@ -87,7 +87,7 @@ static void ll_device_want_to_wakeup(struct st_data_s *st_data)
 	/* communicate to platform about chip wakeup */
 	kim_data = st_data->kim_data;
 	pdata = kim_data->kim_pdev->dev.platform_data;
-	if (pdata->chip_asleep)
+	if (pdata->chip_awake)
 		pdata->chip_awake(NULL);
 }
 
diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index ba247902267..f8d6654391e 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -434,21 +434,9 @@ static struct pci_driver tifm_7xx1_driver = {
 	.resume = tifm_7xx1_resume,
 };
 
-static int __init tifm_7xx1_init(void)
-{
-	return pci_register_driver(&tifm_7xx1_driver);
-}
-
-static void __exit tifm_7xx1_exit(void)
-{
-	pci_unregister_driver(&tifm_7xx1_driver);
-}
-
+module_pci_driver(tifm_7xx1_driver);
 MODULE_AUTHOR("Alex Dubov");
 MODULE_DESCRIPTION("TI FlashMedia host driver");
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl);
 MODULE_VERSION(DRIVER_VERSION);
-
-module_init(tifm_7xx1_init);
-module_exit(tifm_7xx1_exit);
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index f1c84decb19..172a768036d 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1411,7 +1411,8 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 		/* complete ongoing async transfer before issuing discard */
 		if (card->host->areq)
 			mmc_blk_issue_rw_rq(mq, NULL);
-		if (req->cmd_flags & REQ_SECURE)
+		if (req->cmd_flags & REQ_SECURE &&
+			!(card->quirks & MMC_QUIRK_SEC_ERASE_TRIM_BROKEN))
 			ret = mmc_blk_issue_secdiscard_rq(mq, req);
 		else
 			ret = mmc_blk_issue_discard_rq(mq, req);
@@ -1716,6 +1717,7 @@ force_ro_fail:
 #define CID_MANFID_SANDISK	0x2
 #define CID_MANFID_TOSHIBA	0x11
 #define CID_MANFID_MICRON	0x13
+#define CID_MANFID_SAMSUNG	0x15
 
 static const struct mmc_fixup blk_fixups[] =
 {
@@ -1752,6 +1754,28 @@ static const struct mmc_fixup blk_fixups[] =
 	MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc,
 		  MMC_QUIRK_LONG_READ_TIME),
 
+	/*
+	 * On these Samsung MoviNAND parts, performing secure erase or
+	 * secure trim can result in unrecoverable corruption due to a
+	 * firmware bug.
+	 */
+	MMC_FIXUP("M8G2FA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("MAG4FA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("MBG8FA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("MCGAFA", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("VAL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("VYL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("KYL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+	MMC_FIXUP("VZL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc,
+		  MMC_QUIRK_SEC_ERASE_TRIM_BROKEN),
+
 	END_FIXUP
 };
 
diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index 5a2cbfac66d..d2339ea3781 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -518,7 +518,7 @@ static void sdio_uart_check_modem_status(struct sdio_uart_port *port)
 	if (status & UART_MSR_DCTS) {
 		port->icount.cts++;
 		tty = tty_port_tty_get(&port->port);
-		if (tty && (tty->termios->c_cflag & CRTSCTS)) {
+		if (tty && (tty->termios.c_cflag & CRTSCTS)) {
 			int cts = (status & UART_MSR_CTS);
 			if (tty->hw_stopped) {
 				if (cts) {
@@ -671,12 +671,12 @@ static int sdio_uart_activate(struct tty_port *tport, struct tty_struct *tty)
 	port->ier = UART_IER_RLSI|UART_IER_RDI|UART_IER_RTOIE|UART_IER_UUE;
 	port->mctrl = TIOCM_OUT2;
 
-	sdio_uart_change_speed(port, tty->termios, NULL);
+	sdio_uart_change_speed(port, &tty->termios, NULL);
 
-	if (tty->termios->c_cflag & CBAUD)
+	if (tty->termios.c_cflag & CBAUD)
 		sdio_uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR);
 
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		if (!(sdio_uart_get_mctrl(port) & TIOCM_CTS))
 			tty->hw_stopped = 1;
 
@@ -850,7 +850,7 @@ static void sdio_uart_throttle(struct tty_struct *tty)
 {
 	struct sdio_uart_port *port = tty->driver_data;
 
-	if (!I_IXOFF(tty) && !(tty->termios->c_cflag & CRTSCTS))
+	if (!I_IXOFF(tty) && !(tty->termios.c_cflag & CRTSCTS))
 		return;
 
 	if (sdio_uart_claim_func(port) != 0)
@@ -861,7 +861,7 @@ static void sdio_uart_throttle(struct tty_struct *tty)
 		sdio_uart_start_tx(port);
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		sdio_uart_clear_mctrl(port, TIOCM_RTS);
 
 	sdio_uart_irq(port->func);
@@ -872,7 +872,7 @@ static void sdio_uart_unthrottle(struct tty_struct *tty)
 {
 	struct sdio_uart_port *port = tty->driver_data;
 
-	if (!I_IXOFF(tty) && !(tty->termios->c_cflag & CRTSCTS))
+	if (!I_IXOFF(tty) && !(tty->termios.c_cflag & CRTSCTS))
 		return;
 
 	if (sdio_uart_claim_func(port) != 0)
@@ -887,7 +887,7 @@ static void sdio_uart_unthrottle(struct tty_struct *tty)
 		}
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		sdio_uart_set_mctrl(port, TIOCM_RTS);
 
 	sdio_uart_irq(port->func);
@@ -898,12 +898,12 @@ static void sdio_uart_set_termios(struct tty_struct *tty,
 						struct ktermios *old_termios)
 {
 	struct sdio_uart_port *port = tty->driver_data;
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 
 	if (sdio_uart_claim_func(port) != 0)
 		return;
 
-	sdio_uart_change_speed(port, tty->termios, old_termios);
+	sdio_uart_change_speed(port, &tty->termios, old_termios);
 
 	/* Handle transition to B0 status */
 	if ((old_termios->c_cflag & CBAUD) && !(cflag & CBAUD))
@@ -1132,8 +1132,8 @@ static int sdio_uart_probe(struct sdio_func *func,
 		kfree(port);
 	} else {
 		struct device *dev;
-		dev = tty_register_device(sdio_uart_tty_driver,
-						port->index, &func->dev);
+		dev = tty_port_register_device(&port->port,
+				sdio_uart_tty_driver, port->index, &func->dev);
 		if (IS_ERR(dev)) {
 			sdio_uart_port_remove(port);
 			ret = PTR_ERR(dev);
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 597f189b442..ee2e16b1701 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -204,8 +204,8 @@ void mmc_host_clk_release(struct mmc_host *host)
 	host->clk_requests--;
 	if (mmc_host_may_gate_card(host->card) &&
 	    !host->clk_requests)
-		queue_delayed_work(system_nrt_wq, &host->clk_gate_work,
-				msecs_to_jiffies(host->clkgate_delay));
+		schedule_delayed_work(&host->clk_gate_work,
+				      msecs_to_jiffies(host->clkgate_delay));
 	spin_unlock_irqrestore(&host->clk_lock, flags);
 }
 
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index d4619e2ec03..2273ce6b6c1 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -641,7 +641,7 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
 	/*
 	 * If the host and card support UHS-I mode request the card
 	 * to switch to 1.8V signaling level.  No 1.8v signalling if
-	 * UHS mode is not enabled to maintain compatibilty and some
+	 * UHS mode is not enabled to maintain compatibility and some
 	 * systems that claim 1.8v signalling in fact do not support
 	 * it.
 	 */
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index efdb81d21c4..74bed0fc23e 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -356,7 +356,7 @@ static void at91_mci_handle_transmitted(struct at91mci_host *host)
 }
 
 /*
- * Update bytes tranfered count during a write operation
+ * Update bytes transfered count during a write operation
  */
 static void at91_mci_update_bytes_xfered(struct at91mci_host *host)
 {
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 322412cec4e..852d5fbda63 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -81,6 +81,7 @@ struct atmel_mci_caps {
 	bool	has_bad_data_ordering;
 	bool	need_reset_after_xfer;
 	bool	need_blksz_mul_4;
+	bool	need_notbusy_for_read_ops;
 };
 
 struct atmel_mci_dma {
@@ -1021,7 +1022,7 @@ static void atmci_stop_transfer(struct atmel_mci *host)
 }
 
 /*
- * Stop data transfer because error(s) occured.
+ * Stop data transfer because error(s) occurred.
  */
 static void atmci_stop_transfer_pdc(struct atmel_mci *host)
 {
@@ -1625,7 +1626,8 @@ static void atmci_tasklet_func(unsigned long priv)
 				__func__);
 			atmci_set_completed(host, EVENT_XFER_COMPLETE);
 
-			if (host->data->flags & MMC_DATA_WRITE) {
+			if (host->caps.need_notbusy_for_read_ops ||
+			   (host->data->flags & MMC_DATA_WRITE)) {
 				atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
 				state = STATE_WAITING_NOTBUSY;
 			} else if (host->mrq->stop) {
@@ -2218,6 +2220,7 @@ static void __init atmci_get_cap(struct atmel_mci *host)
 	host->caps.has_bad_data_ordering = 1;
 	host->caps.need_reset_after_xfer = 1;
 	host->caps.need_blksz_mul_4 = 1;
+	host->caps.need_notbusy_for_read_ops = 0;
 
 	/* keep only major version number */
 	switch (version & 0xf00) {
@@ -2238,6 +2241,7 @@ static void __init atmci_get_cap(struct atmel_mci *host)
 	case 0x200:
 		host->caps.has_rwproof = 1;
 		host->caps.need_blksz_mul_4 = 0;
+		host->caps.need_notbusy_for_read_ops = 1;
 	case 0x100:
 		host->caps.has_bad_data_ordering = 0;
 		host->caps.need_reset_after_xfer = 0;
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index 03666174ca4..a17dd7363ce 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -49,13 +49,6 @@
 #define bfin_write_SDH_CFG		bfin_write_RSI_CFG
 #endif
 
-struct dma_desc_array {
-	unsigned long	start_addr;
-	unsigned short	cfg;
-	unsigned short	x_count;
-	short		x_modify;
-} __packed;
-
 struct sdh_host {
 	struct mmc_host		*mmc;
 	spinlock_t		lock;
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 7cf6c624bf7..3dfd3473269 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -33,7 +33,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/mmc/mmc.h>
 
-#include <mach/mmc.h>
+#include <linux/platform_data/mmc-davinci.h>
 #include <mach/edma.h>
 
 /*
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 72dc3cde646..af40d227bec 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -627,6 +627,7 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
 {
 	struct dw_mci *host = slot->host;
 	u32 div;
+	u32 clk_en_a;
 
 	if (slot->clock != host->current_speed) {
 		div = host->bus_hz / slot->clock;
@@ -659,9 +660,11 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
 		mci_send_cmd(slot,
 			     SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
 
-		/* enable clock */
-		mci_writel(host, CLKENA, ((SDMMC_CLKEN_ENABLE |
-			   SDMMC_CLKEN_LOW_PWR) << slot->id));
+		/* enable clock; only low power if no SDIO */
+		clk_en_a = SDMMC_CLKEN_ENABLE << slot->id;
+		if (!(mci_readl(host, INTMASK) & SDMMC_INT_SDIO(slot->id)))
+			clk_en_a |= SDMMC_CLKEN_LOW_PWR << slot->id;
+		mci_writel(host, CLKENA, clk_en_a);
 
 		/* inform CIU */
 		mci_send_cmd(slot,
@@ -862,6 +865,30 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
 	return present;
 }
 
+/*
+ * Disable lower power mode.
+ *
+ * Low power mode will stop the card clock when idle.  According to the
+ * description of the CLKENA register we should disable low power mode
+ * for SDIO cards if we need SDIO interrupts to work.
+ *
+ * This function is fast if low power mode is already disabled.
+ */
+static void dw_mci_disable_low_power(struct dw_mci_slot *slot)
+{
+	struct dw_mci *host = slot->host;
+	u32 clk_en_a;
+	const u32 clken_low_pwr = SDMMC_CLKEN_LOW_PWR << slot->id;
+
+	clk_en_a = mci_readl(host, CLKENA);
+
+	if (clk_en_a & clken_low_pwr) {
+		mci_writel(host, CLKENA, clk_en_a & ~clken_low_pwr);
+		mci_send_cmd(slot, SDMMC_CMD_UPD_CLK |
+			     SDMMC_CMD_PRV_DAT_WAIT, 0);
+	}
+}
+
 static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
 {
 	struct dw_mci_slot *slot = mmc_priv(mmc);
@@ -871,6 +898,14 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
 	/* Enable/disable Slot Specific SDIO interrupt */
 	int_mask = mci_readl(host, INTMASK);
 	if (enb) {
+		/*
+		 * Turn off low power mode if it was enabled.  This is a bit of
+		 * a heavy operation and we disable / enable IRQs a lot, so
+		 * we'll leave low power mode disabled and it will get
+		 * re-enabled again in dw_mci_setup_bus().
+		 */
+		dw_mci_disable_low_power(slot);
+
 		mci_writel(host, INTMASK,
 			   (int_mask | SDMMC_INT_SDIO(slot->id)));
 	} else {
@@ -1429,22 +1464,10 @@ static void dw_mci_read_data_pio(struct dw_mci *host)
 			nbytes += len;
 			remain -= len;
 		} while (remain);
-		sg_miter->consumed = offset;
 
+		sg_miter->consumed = offset;
 		status = mci_readl(host, MINTSTS);
 		mci_writel(host, RINTSTS, SDMMC_INT_RXDR);
-		if (status & DW_MCI_DATA_ERROR_FLAGS) {
-			host->data_status = status;
-			data->bytes_xfered += nbytes;
-			sg_miter_stop(sg_miter);
-			host->sg = NULL;
-			smp_wmb();
-
-			set_bit(EVENT_DATA_ERROR, &host->pending_events);
-
-			tasklet_schedule(&host->tasklet);
-			return;
-		}
 	} while (status & SDMMC_INT_RXDR); /*if the RXDR is ready read again*/
 	data->bytes_xfered += nbytes;
 
@@ -1497,23 +1520,10 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
 			nbytes += len;
 			remain -= len;
 		} while (remain);
-		sg_miter->consumed = offset;
 
+		sg_miter->consumed = offset;
 		status = mci_readl(host, MINTSTS);
 		mci_writel(host, RINTSTS, SDMMC_INT_TXDR);
-		if (status & DW_MCI_DATA_ERROR_FLAGS) {
-			host->data_status = status;
-			data->bytes_xfered += nbytes;
-			sg_miter_stop(sg_miter);
-			host->sg = NULL;
-
-			smp_wmb();
-
-			set_bit(EVENT_DATA_ERROR, &host->pending_events);
-
-			tasklet_schedule(&host->tasklet);
-			return;
-		}
 	} while (status & SDMMC_INT_TXDR); /* if TXDR write again */
 	data->bytes_xfered += nbytes;
 
@@ -1547,12 +1557,11 @@ static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status)
 static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 {
 	struct dw_mci *host = dev_id;
-	u32 status, pending;
+	u32 pending;
 	unsigned int pass_count = 0;
 	int i;
 
 	do {
-		status = mci_readl(host, RINTSTS);
 		pending = mci_readl(host, MINTSTS); /* read-only mask reg */
 
 		/*
@@ -1570,7 +1579,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 
 		if (pending & DW_MCI_CMD_ERROR_FLAGS) {
 			mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS);
-			host->cmd_status = status;
+			host->cmd_status = pending;
 			smp_wmb();
 			set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
 		}
@@ -1578,18 +1587,16 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		if (pending & DW_MCI_DATA_ERROR_FLAGS) {
 			/* if there is an error report DATA_ERROR */
 			mci_writel(host, RINTSTS, DW_MCI_DATA_ERROR_FLAGS);
-			host->data_status = status;
+			host->data_status = pending;
 			smp_wmb();
 			set_bit(EVENT_DATA_ERROR, &host->pending_events);
-			if (!(pending & (SDMMC_INT_DTO | SDMMC_INT_DCRC |
-					 SDMMC_INT_SBE | SDMMC_INT_EBE)))
-				tasklet_schedule(&host->tasklet);
+			tasklet_schedule(&host->tasklet);
 		}
 
 		if (pending & SDMMC_INT_DATA_OVER) {
 			mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER);
 			if (!host->data_status)
-				host->data_status = status;
+				host->data_status = pending;
 			smp_wmb();
 			if (host->dir_status == DW_MCI_RECV_STATUS) {
 				if (host->sg != NULL)
@@ -1613,7 +1620,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 
 		if (pending & SDMMC_INT_CMD_DONE) {
 			mci_writel(host, RINTSTS, SDMMC_INT_CMD_DONE);
-			dw_mci_cmd_interrupt(host, status);
+			dw_mci_cmd_interrupt(host, pending);
 		}
 
 		if (pending & SDMMC_INT_CD) {
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 1d14cda95e5..7c0af0e8004 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -42,7 +42,7 @@
 #include <asm/div64.h>
 #include <asm/sizes.h>
 
-#include <mach/mmc.h>
+#include <linux/platform_data/mmc-msm_sdcc.h>
 #include <mach/msm_iomap.h>
 #include <mach/dma.h>
 #include <mach/clk.h>
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index a61cb5fca22..de4c20b3936 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -25,7 +25,7 @@
 
 #include <asm/sizes.h>
 #include <asm/unaligned.h>
-#include <plat/mvsdio.h>
+#include <linux/platform_data/mmc-mvsdio.h>
 
 #include "mvsdio.h"
 
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 28ed52d58f7..7b1161de01d 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -38,9 +38,9 @@
 #include <asm/dma.h>
 #include <asm/irq.h>
 #include <asm/sizes.h>
-#include <mach/mmc.h>
+#include <linux/platform_data/mmc-mxcmmc.h>
 
-#include <mach/dma.h>
+#include <linux/platform_data/dma-imx.h>
 #include <mach/hardware.h>
 
 #define DRIVER_NAME "mxc-mmc"
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index a51f9309ffb..bb4c2bf04d0 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -41,91 +41,13 @@
 #include <linux/gpio.h>
 #include <linux/regulator/consumer.h>
 #include <linux/module.h>
-#include <linux/fsl/mxs-dma.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/stmp_device.h>
 #include <linux/mmc/mxs-mmc.h>
+#include <linux/spi/mxs-spi.h>
 
 #define DRIVER_NAME	"mxs-mmc"
 
-/* card detect polling timeout */
-#define MXS_MMC_DETECT_TIMEOUT			(HZ/2)
-
-#define ssp_is_old(host)	((host)->devid == IMX23_MMC)
-
-/* SSP registers */
-#define HW_SSP_CTRL0				0x000
-#define  BM_SSP_CTRL0_RUN			(1 << 29)
-#define  BM_SSP_CTRL0_SDIO_IRQ_CHECK		(1 << 28)
-#define  BM_SSP_CTRL0_IGNORE_CRC		(1 << 26)
-#define  BM_SSP_CTRL0_READ			(1 << 25)
-#define  BM_SSP_CTRL0_DATA_XFER			(1 << 24)
-#define  BP_SSP_CTRL0_BUS_WIDTH			(22)
-#define  BM_SSP_CTRL0_BUS_WIDTH			(0x3 << 22)
-#define  BM_SSP_CTRL0_WAIT_FOR_IRQ		(1 << 21)
-#define  BM_SSP_CTRL0_LONG_RESP			(1 << 19)
-#define  BM_SSP_CTRL0_GET_RESP			(1 << 17)
-#define  BM_SSP_CTRL0_ENABLE			(1 << 16)
-#define  BP_SSP_CTRL0_XFER_COUNT		(0)
-#define  BM_SSP_CTRL0_XFER_COUNT		(0xffff)
-#define HW_SSP_CMD0				0x010
-#define  BM_SSP_CMD0_DBL_DATA_RATE_EN		(1 << 25)
-#define  BM_SSP_CMD0_SLOW_CLKING_EN		(1 << 22)
-#define  BM_SSP_CMD0_CONT_CLKING_EN		(1 << 21)
-#define  BM_SSP_CMD0_APPEND_8CYC		(1 << 20)
-#define  BP_SSP_CMD0_BLOCK_SIZE			(16)
-#define  BM_SSP_CMD0_BLOCK_SIZE			(0xf << 16)
-#define  BP_SSP_CMD0_BLOCK_COUNT		(8)
-#define  BM_SSP_CMD0_BLOCK_COUNT		(0xff << 8)
-#define  BP_SSP_CMD0_CMD			(0)
-#define  BM_SSP_CMD0_CMD			(0xff)
-#define HW_SSP_CMD1				0x020
-#define HW_SSP_XFER_SIZE			0x030
-#define HW_SSP_BLOCK_SIZE			0x040
-#define  BP_SSP_BLOCK_SIZE_BLOCK_COUNT		(4)
-#define  BM_SSP_BLOCK_SIZE_BLOCK_COUNT		(0xffffff << 4)
-#define  BP_SSP_BLOCK_SIZE_BLOCK_SIZE		(0)
-#define  BM_SSP_BLOCK_SIZE_BLOCK_SIZE		(0xf)
-#define HW_SSP_TIMING(h)			(ssp_is_old(h) ? 0x050 : 0x070)
-#define  BP_SSP_TIMING_TIMEOUT			(16)
-#define  BM_SSP_TIMING_TIMEOUT			(0xffff << 16)
-#define  BP_SSP_TIMING_CLOCK_DIVIDE		(8)
-#define  BM_SSP_TIMING_CLOCK_DIVIDE		(0xff << 8)
-#define  BP_SSP_TIMING_CLOCK_RATE		(0)
-#define  BM_SSP_TIMING_CLOCK_RATE		(0xff)
-#define HW_SSP_CTRL1(h)				(ssp_is_old(h) ? 0x060 : 0x080)
-#define  BM_SSP_CTRL1_SDIO_IRQ			(1 << 31)
-#define  BM_SSP_CTRL1_SDIO_IRQ_EN		(1 << 30)
-#define  BM_SSP_CTRL1_RESP_ERR_IRQ		(1 << 29)
-#define  BM_SSP_CTRL1_RESP_ERR_IRQ_EN		(1 << 28)
-#define  BM_SSP_CTRL1_RESP_TIMEOUT_IRQ		(1 << 27)
-#define  BM_SSP_CTRL1_RESP_TIMEOUT_IRQ_EN	(1 << 26)
-#define  BM_SSP_CTRL1_DATA_TIMEOUT_IRQ		(1 << 25)
-#define  BM_SSP_CTRL1_DATA_TIMEOUT_IRQ_EN	(1 << 24)
-#define  BM_SSP_CTRL1_DATA_CRC_IRQ		(1 << 23)
-#define  BM_SSP_CTRL1_DATA_CRC_IRQ_EN		(1 << 22)
-#define  BM_SSP_CTRL1_FIFO_UNDERRUN_IRQ		(1 << 21)
-#define  BM_SSP_CTRL1_FIFO_UNDERRUN_IRQ_EN	(1 << 20)
-#define  BM_SSP_CTRL1_RECV_TIMEOUT_IRQ		(1 << 17)
-#define  BM_SSP_CTRL1_RECV_TIMEOUT_IRQ_EN	(1 << 16)
-#define  BM_SSP_CTRL1_FIFO_OVERRUN_IRQ		(1 << 15)
-#define  BM_SSP_CTRL1_FIFO_OVERRUN_IRQ_EN	(1 << 14)
-#define  BM_SSP_CTRL1_DMA_ENABLE		(1 << 13)
-#define  BM_SSP_CTRL1_POLARITY			(1 << 9)
-#define  BP_SSP_CTRL1_WORD_LENGTH		(4)
-#define  BM_SSP_CTRL1_WORD_LENGTH		(0xf << 4)
-#define  BP_SSP_CTRL1_SSP_MODE			(0)
-#define  BM_SSP_CTRL1_SSP_MODE			(0xf)
-#define HW_SSP_SDRESP0(h)			(ssp_is_old(h) ? 0x080 : 0x0a0)
-#define HW_SSP_SDRESP1(h)			(ssp_is_old(h) ? 0x090 : 0x0b0)
-#define HW_SSP_SDRESP2(h)			(ssp_is_old(h) ? 0x0a0 : 0x0c0)
-#define HW_SSP_SDRESP3(h)			(ssp_is_old(h) ? 0x0b0 : 0x0d0)
-#define HW_SSP_STATUS(h)			(ssp_is_old(h) ? 0x0c0 : 0x100)
-#define  BM_SSP_STATUS_CARD_DETECT		(1 << 28)
-#define  BM_SSP_STATUS_SDIO_IRQ			(1 << 17)
-
-#define BF_SSP(value, field)	(((value) << BP_SSP_##field) & BM_SSP_##field)
-
 #define MXS_MMC_IRQ_BITS	(BM_SSP_CTRL1_SDIO_IRQ		| \
 				 BM_SSP_CTRL1_RESP_ERR_IRQ	| \
 				 BM_SSP_CTRL1_RESP_TIMEOUT_IRQ	| \
@@ -135,31 +57,17 @@
 				 BM_SSP_CTRL1_RECV_TIMEOUT_IRQ  | \
 				 BM_SSP_CTRL1_FIFO_OVERRUN_IRQ)
 
-#define SSP_PIO_NUM	3
-
-enum mxs_mmc_id {
-	IMX23_MMC,
-	IMX28_MMC,
-};
+/* card detect polling timeout */
+#define MXS_MMC_DETECT_TIMEOUT			(HZ/2)
 
 struct mxs_mmc_host {
+	struct mxs_ssp			ssp;
+
 	struct mmc_host			*mmc;
 	struct mmc_request		*mrq;
 	struct mmc_command		*cmd;
 	struct mmc_data			*data;
 
-	void __iomem			*base;
-	int				dma_channel;
-	struct clk			*clk;
-	unsigned int			clk_rate;
-
-	struct dma_chan         	*dmach;
-	struct mxs_dma_data		dma_data;
-	unsigned int			dma_dir;
-	enum dma_transfer_direction	slave_dirn;
-	u32				ssp_pio_words[SSP_PIO_NUM];
-
-	enum mxs_mmc_id			devid;
 	unsigned char			bus_width;
 	spinlock_t			lock;
 	int				sdio_irq_en;
@@ -186,16 +94,18 @@ static int mxs_mmc_get_ro(struct mmc_host *mmc)
 static int mxs_mmc_get_cd(struct mmc_host *mmc)
 {
 	struct mxs_mmc_host *host = mmc_priv(mmc);
+	struct mxs_ssp *ssp = &host->ssp;
 
-	return !(readl(host->base + HW_SSP_STATUS(host)) &
+	return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
 		 BM_SSP_STATUS_CARD_DETECT);
 }
 
 static void mxs_mmc_reset(struct mxs_mmc_host *host)
 {
+	struct mxs_ssp *ssp = &host->ssp;
 	u32 ctrl0, ctrl1;
 
-	stmp_reset_block(host->base);
+	stmp_reset_block(ssp->base);
 
 	ctrl0 = BM_SSP_CTRL0_IGNORE_CRC;
 	ctrl1 = BF_SSP(0x3, CTRL1_SSP_MODE) |
@@ -211,15 +121,15 @@ static void mxs_mmc_reset(struct mxs_mmc_host *host)
 	writel(BF_SSP(0xffff, TIMING_TIMEOUT) |
 	       BF_SSP(2, TIMING_CLOCK_DIVIDE) |
 	       BF_SSP(0, TIMING_CLOCK_RATE),
-	       host->base + HW_SSP_TIMING(host));
+	       ssp->base + HW_SSP_TIMING(ssp));
 
 	if (host->sdio_irq_en) {
 		ctrl0 |= BM_SSP_CTRL0_SDIO_IRQ_CHECK;
 		ctrl1 |= BM_SSP_CTRL1_SDIO_IRQ_EN;
 	}
 
-	writel(ctrl0, host->base + HW_SSP_CTRL0);
-	writel(ctrl1, host->base + HW_SSP_CTRL1(host));
+	writel(ctrl0, ssp->base + HW_SSP_CTRL0);
+	writel(ctrl1, ssp->base + HW_SSP_CTRL1(ssp));
 }
 
 static void mxs_mmc_start_cmd(struct mxs_mmc_host *host,
@@ -230,21 +140,22 @@ static void mxs_mmc_request_done(struct mxs_mmc_host *host)
 	struct mmc_command *cmd = host->cmd;
 	struct mmc_data *data = host->data;
 	struct mmc_request *mrq = host->mrq;
+	struct mxs_ssp *ssp = &host->ssp;
 
 	if (mmc_resp_type(cmd) & MMC_RSP_PRESENT) {
 		if (mmc_resp_type(cmd) & MMC_RSP_136) {
-			cmd->resp[3] = readl(host->base + HW_SSP_SDRESP0(host));
-			cmd->resp[2] = readl(host->base + HW_SSP_SDRESP1(host));
-			cmd->resp[1] = readl(host->base + HW_SSP_SDRESP2(host));
-			cmd->resp[0] = readl(host->base + HW_SSP_SDRESP3(host));
+			cmd->resp[3] = readl(ssp->base + HW_SSP_SDRESP0(ssp));
+			cmd->resp[2] = readl(ssp->base + HW_SSP_SDRESP1(ssp));
+			cmd->resp[1] = readl(ssp->base + HW_SSP_SDRESP2(ssp));
+			cmd->resp[0] = readl(ssp->base + HW_SSP_SDRESP3(ssp));
 		} else {
-			cmd->resp[0] = readl(host->base + HW_SSP_SDRESP0(host));
+			cmd->resp[0] = readl(ssp->base + HW_SSP_SDRESP0(ssp));
 		}
 	}
 
 	if (data) {
 		dma_unmap_sg(mmc_dev(host->mmc), data->sg,
-			     data->sg_len, host->dma_dir);
+			     data->sg_len, ssp->dma_dir);
 		/*
 		 * If there was an error on any block, we mark all
 		 * data blocks as being in error.
@@ -277,19 +188,20 @@ static irqreturn_t mxs_mmc_irq_handler(int irq, void *dev_id)
 	struct mxs_mmc_host *host = dev_id;
 	struct mmc_command *cmd = host->cmd;
 	struct mmc_data *data = host->data;
+	struct mxs_ssp *ssp = &host->ssp;
 	u32 stat;
 
 	spin_lock(&host->lock);
 
-	stat = readl(host->base + HW_SSP_CTRL1(host));
+	stat = readl(ssp->base + HW_SSP_CTRL1(ssp));
 	writel(stat & MXS_MMC_IRQ_BITS,
-	       host->base + HW_SSP_CTRL1(host) + STMP_OFFSET_REG_CLR);
+	       ssp->base + HW_SSP_CTRL1(ssp) + STMP_OFFSET_REG_CLR);
+
+	spin_unlock(&host->lock);
 
 	if ((stat & BM_SSP_CTRL1_SDIO_IRQ) && (stat & BM_SSP_CTRL1_SDIO_IRQ_EN))
 		mmc_signal_sdio_irq(host->mmc);
 
-	spin_unlock(&host->lock);
-
 	if (stat & BM_SSP_CTRL1_RESP_TIMEOUT_IRQ)
 		cmd->error = -ETIMEDOUT;
 	else if (stat & BM_SSP_CTRL1_RESP_ERR_IRQ)
@@ -312,6 +224,7 @@ static irqreturn_t mxs_mmc_irq_handler(int irq, void *dev_id)
 static struct dma_async_tx_descriptor *mxs_mmc_prep_dma(
 	struct mxs_mmc_host *host, unsigned long flags)
 {
+	struct mxs_ssp *ssp = &host->ssp;
 	struct dma_async_tx_descriptor *desc;
 	struct mmc_data *data = host->data;
 	struct scatterlist * sgl;
@@ -320,24 +233,24 @@ static struct dma_async_tx_descriptor *mxs_mmc_prep_dma(
 	if (data) {
 		/* data */
 		dma_map_sg(mmc_dev(host->mmc), data->sg,
-			   data->sg_len, host->dma_dir);
+			   data->sg_len, ssp->dma_dir);
 		sgl = data->sg;
 		sg_len = data->sg_len;
 	} else {
 		/* pio */
-		sgl = (struct scatterlist *) host->ssp_pio_words;
+		sgl = (struct scatterlist *) ssp->ssp_pio_words;
 		sg_len = SSP_PIO_NUM;
 	}
 
-	desc = dmaengine_prep_slave_sg(host->dmach,
-				sgl, sg_len, host->slave_dirn, flags);
+	desc = dmaengine_prep_slave_sg(ssp->dmach,
+				sgl, sg_len, ssp->slave_dirn, flags);
 	if (desc) {
 		desc->callback = mxs_mmc_dma_irq_callback;
 		desc->callback_param = host;
 	} else {
 		if (data)
 			dma_unmap_sg(mmc_dev(host->mmc), data->sg,
-				     data->sg_len, host->dma_dir);
+				     data->sg_len, ssp->dma_dir);
 	}
 
 	return desc;
@@ -345,6 +258,7 @@ static struct dma_async_tx_descriptor *mxs_mmc_prep_dma(
 
 static void mxs_mmc_bc(struct mxs_mmc_host *host)
 {
+	struct mxs_ssp *ssp = &host->ssp;
 	struct mmc_command *cmd = host->cmd;
 	struct dma_async_tx_descriptor *desc;
 	u32 ctrl0, cmd0, cmd1;
@@ -358,17 +272,17 @@ static void mxs_mmc_bc(struct mxs_mmc_host *host)
 		cmd0 |= BM_SSP_CMD0_CONT_CLKING_EN | BM_SSP_CMD0_SLOW_CLKING_EN;
 	}
 
-	host->ssp_pio_words[0] = ctrl0;
-	host->ssp_pio_words[1] = cmd0;
-	host->ssp_pio_words[2] = cmd1;
-	host->dma_dir = DMA_NONE;
-	host->slave_dirn = DMA_TRANS_NONE;
+	ssp->ssp_pio_words[0] = ctrl0;
+	ssp->ssp_pio_words[1] = cmd0;
+	ssp->ssp_pio_words[2] = cmd1;
+	ssp->dma_dir = DMA_NONE;
+	ssp->slave_dirn = DMA_TRANS_NONE;
 	desc = mxs_mmc_prep_dma(host, DMA_CTRL_ACK);
 	if (!desc)
 		goto out;
 
 	dmaengine_submit(desc);
-	dma_async_issue_pending(host->dmach);
+	dma_async_issue_pending(ssp->dmach);
 	return;
 
 out:
@@ -378,6 +292,7 @@ out:
 
 static void mxs_mmc_ac(struct mxs_mmc_host *host)
 {
+	struct mxs_ssp *ssp = &host->ssp;
 	struct mmc_command *cmd = host->cmd;
 	struct dma_async_tx_descriptor *desc;
 	u32 ignore_crc, get_resp, long_resp;
@@ -399,17 +314,17 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host)
 		cmd0 |= BM_SSP_CMD0_CONT_CLKING_EN | BM_SSP_CMD0_SLOW_CLKING_EN;
 	}
 
-	host->ssp_pio_words[0] = ctrl0;
-	host->ssp_pio_words[1] = cmd0;
-	host->ssp_pio_words[2] = cmd1;
-	host->dma_dir = DMA_NONE;
-	host->slave_dirn = DMA_TRANS_NONE;
+	ssp->ssp_pio_words[0] = ctrl0;
+	ssp->ssp_pio_words[1] = cmd0;
+	ssp->ssp_pio_words[2] = cmd1;
+	ssp->dma_dir = DMA_NONE;
+	ssp->slave_dirn = DMA_TRANS_NONE;
 	desc = mxs_mmc_prep_dma(host, DMA_CTRL_ACK);
 	if (!desc)
 		goto out;
 
 	dmaengine_submit(desc);
-	dma_async_issue_pending(host->dmach);
+	dma_async_issue_pending(ssp->dmach);
 	return;
 
 out:
@@ -447,6 +362,8 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
 	unsigned int data_size = 0, log2_blksz;
 	unsigned int blocks = data->blocks;
 
+	struct mxs_ssp *ssp = &host->ssp;
+
 	u32 ignore_crc, get_resp, long_resp, read;
 	u32 ctrl0, cmd0, cmd1, val;
 
@@ -489,15 +406,15 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
 		blocks = 1;
 
 	/* xfer count, block size and count need to be set differently */
-	if (ssp_is_old(host)) {
+	if (ssp_is_old(ssp)) {
 		ctrl0 |= BF_SSP(data_size, CTRL0_XFER_COUNT);
 		cmd0 |= BF_SSP(log2_blksz, CMD0_BLOCK_SIZE) |
 			BF_SSP(blocks - 1, CMD0_BLOCK_COUNT);
 	} else {
-		writel(data_size, host->base + HW_SSP_XFER_SIZE);
+		writel(data_size, ssp->base + HW_SSP_XFER_SIZE);
 		writel(BF_SSP(log2_blksz, BLOCK_SIZE_BLOCK_SIZE) |
 		       BF_SSP(blocks - 1, BLOCK_SIZE_BLOCK_COUNT),
-		       host->base + HW_SSP_BLOCK_SIZE);
+		       ssp->base + HW_SSP_BLOCK_SIZE);
 	}
 
 	if ((cmd->opcode == MMC_STOP_TRANSMISSION) ||
@@ -512,18 +429,18 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
 	}
 
 	/* set the timeout count */
-	timeout = mxs_ns_to_ssp_ticks(host->clk_rate, data->timeout_ns);
-	val = readl(host->base + HW_SSP_TIMING(host));
+	timeout = mxs_ns_to_ssp_ticks(ssp->clk_rate, data->timeout_ns);
+	val = readl(ssp->base + HW_SSP_TIMING(ssp));
 	val &= ~(BM_SSP_TIMING_TIMEOUT);
 	val |= BF_SSP(timeout, TIMING_TIMEOUT);
-	writel(val, host->base + HW_SSP_TIMING(host));
+	writel(val, ssp->base + HW_SSP_TIMING(ssp));
 
 	/* pio */
-	host->ssp_pio_words[0] = ctrl0;
-	host->ssp_pio_words[1] = cmd0;
-	host->ssp_pio_words[2] = cmd1;
-	host->dma_dir = DMA_NONE;
-	host->slave_dirn = DMA_TRANS_NONE;
+	ssp->ssp_pio_words[0] = ctrl0;
+	ssp->ssp_pio_words[1] = cmd0;
+	ssp->ssp_pio_words[2] = cmd1;
+	ssp->dma_dir = DMA_NONE;
+	ssp->slave_dirn = DMA_TRANS_NONE;
 	desc = mxs_mmc_prep_dma(host, 0);
 	if (!desc)
 		goto out;
@@ -531,14 +448,14 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
 	/* append data sg */
 	WARN_ON(host->data != NULL);
 	host->data = data;
-	host->dma_dir = dma_data_dir;
-	host->slave_dirn = slave_dirn;
+	ssp->dma_dir = dma_data_dir;
+	ssp->slave_dirn = slave_dirn;
 	desc = mxs_mmc_prep_dma(host, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc)
 		goto out;
 
 	dmaengine_submit(desc);
-	dma_async_issue_pending(host->dmach);
+	dma_async_issue_pending(ssp->dmach);
 	return;
 out:
 	dev_warn(mmc_dev(host->mmc),
@@ -579,42 +496,6 @@ static void mxs_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	mxs_mmc_start_cmd(host, mrq->cmd);
 }
 
-static void mxs_mmc_set_clk_rate(struct mxs_mmc_host *host, unsigned int rate)
-{
-	unsigned int ssp_clk, ssp_sck;
-	u32 clock_divide, clock_rate;
-	u32 val;
-
-	ssp_clk = clk_get_rate(host->clk);
-
-	for (clock_divide = 2; clock_divide <= 254; clock_divide += 2) {
-		clock_rate = DIV_ROUND_UP(ssp_clk, rate * clock_divide);
-		clock_rate = (clock_rate > 0) ? clock_rate - 1 : 0;
-		if (clock_rate <= 255)
-			break;
-	}
-
-	if (clock_divide > 254) {
-		dev_err(mmc_dev(host->mmc),
-			"%s: cannot set clock to %d\n", __func__, rate);
-		return;
-	}
-
-	ssp_sck = ssp_clk / clock_divide / (1 + clock_rate);
-
-	val = readl(host->base + HW_SSP_TIMING(host));
-	val &= ~(BM_SSP_TIMING_CLOCK_DIVIDE | BM_SSP_TIMING_CLOCK_RATE);
-	val |= BF_SSP(clock_divide, TIMING_CLOCK_DIVIDE);
-	val |= BF_SSP(clock_rate, TIMING_CLOCK_RATE);
-	writel(val, host->base + HW_SSP_TIMING(host));
-
-	host->clk_rate = ssp_sck;
-
-	dev_dbg(mmc_dev(host->mmc),
-		"%s: clock_divide %d, clock_rate %d, ssp_clk %d, rate_actual %d, rate_requested %d\n",
-		__func__, clock_divide, clock_rate, ssp_clk, ssp_sck, rate);
-}
-
 static void mxs_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
 	struct mxs_mmc_host *host = mmc_priv(mmc);
@@ -627,12 +508,13 @@ static void mxs_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		host->bus_width = 0;
 
 	if (ios->clock)
-		mxs_mmc_set_clk_rate(host, ios->clock);
+		mxs_ssp_set_clk_rate(&host->ssp, ios->clock);
 }
 
 static void mxs_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
 {
 	struct mxs_mmc_host *host = mmc_priv(mmc);
+	struct mxs_ssp *ssp = &host->ssp;
 	unsigned long flags;
 
 	spin_lock_irqsave(&host->lock, flags);
@@ -641,22 +523,22 @@ static void mxs_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
 
 	if (enable) {
 		writel(BM_SSP_CTRL0_SDIO_IRQ_CHECK,
-		       host->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+		       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 		writel(BM_SSP_CTRL1_SDIO_IRQ_EN,
 		       host->base + HW_SSP_CTRL1(host) + STMP_OFFSET_REG_SET);
-
-		if (readl(host->base + HW_SSP_STATUS(host)) &
-				BM_SSP_STATUS_SDIO_IRQ)
-			mmc_signal_sdio_irq(host->mmc);
-
 	} else {
 		writel(BM_SSP_CTRL0_SDIO_IRQ_CHECK,
-		       host->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+		       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 		writel(BM_SSP_CTRL1_SDIO_IRQ_EN,
-		       host->base + HW_SSP_CTRL1(host) + STMP_OFFSET_REG_CLR);
+		       ssp->base + HW_SSP_CTRL1(ssp) + STMP_OFFSET_REG_CLR);
 	}
 
 	spin_unlock_irqrestore(&host->lock, flags);
+
+	if (enable && readl(ssp->base + HW_SSP_STATUS(ssp)) &
+			BM_SSP_STATUS_SDIO_IRQ)
+		mmc_signal_sdio_irq(host->mmc);
+
 }
 
 static const struct mmc_host_ops mxs_mmc_ops = {
@@ -670,34 +552,35 @@ static const struct mmc_host_ops mxs_mmc_ops = {
 static bool mxs_mmc_dma_filter(struct dma_chan *chan, void *param)
 {
 	struct mxs_mmc_host *host = param;
+	struct mxs_ssp *ssp = &host->ssp;
 
 	if (!mxs_dma_is_apbh(chan))
 		return false;
 
-	if (chan->chan_id != host->dma_channel)
+	if (chan->chan_id != ssp->dma_channel)
 		return false;
 
-	chan->private = &host->dma_data;
+	chan->private = &ssp->dma_data;
 
 	return true;
 }
 
-static struct platform_device_id mxs_mmc_ids[] = {
+static struct platform_device_id mxs_ssp_ids[] = {
 	{
 		.name = "imx23-mmc",
-		.driver_data = IMX23_MMC,
+		.driver_data = IMX23_SSP,
 	}, {
 		.name = "imx28-mmc",
-		.driver_data = IMX28_MMC,
+		.driver_data = IMX28_SSP,
 	}, {
 		/* sentinel */
 	}
 };
-MODULE_DEVICE_TABLE(platform, mxs_mmc_ids);
+MODULE_DEVICE_TABLE(platform, mxs_ssp_ids);
 
 static const struct of_device_id mxs_mmc_dt_ids[] = {
-	{ .compatible = "fsl,imx23-mmc", .data = (void *) IMX23_MMC, },
-	{ .compatible = "fsl,imx28-mmc", .data = (void *) IMX28_MMC, },
+	{ .compatible = "fsl,imx23-mmc", .data = (void *) IMX23_SSP, },
+	{ .compatible = "fsl,imx28-mmc", .data = (void *) IMX28_SSP, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, mxs_mmc_dt_ids);
@@ -716,6 +599,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 	dma_cap_mask_t mask;
 	struct regulator *reg_vmmc;
 	enum of_gpio_flags flags;
+	struct mxs_ssp *ssp;
 
 	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
@@ -729,28 +613,30 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	host = mmc_priv(mmc);
-	host->base = devm_request_and_ioremap(&pdev->dev, iores);
-	if (!host->base) {
+	ssp = &host->ssp;
+	ssp->dev = &pdev->dev;
+	ssp->base = devm_request_and_ioremap(&pdev->dev, iores);
+	if (!ssp->base) {
 		ret = -EADDRNOTAVAIL;
 		goto out_mmc_free;
 	}
 
 	if (np) {
-		host->devid = (enum mxs_mmc_id) of_id->data;
+		ssp->devid = (enum mxs_ssp_id) of_id->data;
 		/*
 		 * TODO: This is a temporary solution and should be changed
 		 * to use generic DMA binding later when the helpers get in.
 		 */
 		ret = of_property_read_u32(np, "fsl,ssp-dma-channel",
-					   &host->dma_channel);
+					   &ssp->dma_channel);
 		if (ret) {
 			dev_err(mmc_dev(host->mmc),
 				"failed to get dma channel\n");
 			goto out_mmc_free;
 		}
 	} else {
-		host->devid = pdev->id_entry->driver_data;
-		host->dma_channel = dmares->start;
+		ssp->devid = pdev->id_entry->driver_data;
+		ssp->dma_channel = dmares->start;
 	}
 
 	host->mmc = mmc;
@@ -772,20 +658,20 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 		goto out_mmc_free;
 	}
 
-	host->clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(host->clk)) {
-		ret = PTR_ERR(host->clk);
+	ssp->clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(ssp->clk)) {
+		ret = PTR_ERR(ssp->clk);
 		goto out_mmc_free;
 	}
-	clk_prepare_enable(host->clk);
+	clk_prepare_enable(ssp->clk);
 
 	mxs_mmc_reset(host);
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
-	host->dma_data.chan_irq = irq_dma;
-	host->dmach = dma_request_channel(mask, mxs_mmc_dma_filter, host);
-	if (!host->dmach) {
+	ssp->dma_data.chan_irq = irq_dma;
+	ssp->dmach = dma_request_channel(mask, mxs_mmc_dma_filter, host);
+	if (!ssp->dmach) {
 		dev_err(mmc_dev(host->mmc),
 			"%s: failed to request dma\n", __func__);
 		goto out_clk_put;
@@ -822,9 +708,9 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 
 	mmc->max_segs = 52;
 	mmc->max_blk_size = 1 << 0xf;
-	mmc->max_blk_count = (ssp_is_old(host)) ? 0xff : 0xffffff;
-	mmc->max_req_size = (ssp_is_old(host)) ? 0xffff : 0xffffffff;
-	mmc->max_seg_size = dma_get_max_seg_size(host->dmach->device->dev);
+	mmc->max_blk_count = (ssp_is_old(ssp)) ? 0xff : 0xffffff;
+	mmc->max_req_size = (ssp_is_old(ssp)) ? 0xffff : 0xffffffff;
+	mmc->max_seg_size = dma_get_max_seg_size(ssp->dmach->device->dev);
 
 	platform_set_drvdata(pdev, mmc);
 
@@ -844,11 +730,11 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 	return 0;
 
 out_free_dma:
-	if (host->dmach)
-		dma_release_channel(host->dmach);
+	if (ssp->dmach)
+		dma_release_channel(ssp->dmach);
 out_clk_put:
-	clk_disable_unprepare(host->clk);
-	clk_put(host->clk);
+	clk_disable_unprepare(ssp->clk);
+	clk_put(ssp->clk);
 out_mmc_free:
 	mmc_free_host(mmc);
 	return ret;
@@ -858,16 +744,17 @@ static int mxs_mmc_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 	struct mxs_mmc_host *host = mmc_priv(mmc);
+	struct mxs_ssp *ssp = &host->ssp;
 
 	mmc_remove_host(mmc);
 
 	platform_set_drvdata(pdev, NULL);
 
-	if (host->dmach)
-		dma_release_channel(host->dmach);
+	if (ssp->dmach)
+		dma_release_channel(ssp->dmach);
 
-	clk_disable_unprepare(host->clk);
-	clk_put(host->clk);
+	clk_disable_unprepare(ssp->clk);
+	clk_put(ssp->clk);
 
 	mmc_free_host(mmc);
 
@@ -879,11 +766,12 @@ static int mxs_mmc_suspend(struct device *dev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct mxs_mmc_host *host = mmc_priv(mmc);
+	struct mxs_ssp *ssp = &host->ssp;
 	int ret = 0;
 
 	ret = mmc_suspend_host(mmc);
 
-	clk_disable_unprepare(host->clk);
+	clk_disable_unprepare(ssp->clk);
 
 	return ret;
 }
@@ -892,9 +780,10 @@ static int mxs_mmc_resume(struct device *dev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct mxs_mmc_host *host = mmc_priv(mmc);
+	struct mxs_ssp *ssp = &host->ssp;
 	int ret = 0;
 
-	clk_prepare_enable(host->clk);
+	clk_prepare_enable(ssp->clk);
 
 	ret = mmc_resume_host(mmc);
 
@@ -910,7 +799,7 @@ static const struct dev_pm_ops mxs_mmc_pm_ops = {
 static struct platform_driver mxs_mmc_driver = {
 	.probe		= mxs_mmc_probe,
 	.remove		= mxs_mmc_remove,
-	.id_table	= mxs_mmc_ids,
+	.id_table	= mxs_ssp_ids,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 50e08f03aa6..c6259a82954 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -33,11 +33,9 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
-#include <plat/board.h>
 #include <plat/mmc.h>
 #include <asm/gpio.h>
 #include <plat/dma.h>
-#include <plat/mux.h>
 #include <plat/fpga.h>
 
 #define	OMAP_MMC_REG_CMD	0x00
@@ -668,7 +666,7 @@ mmc_omap_clk_timer(unsigned long data)
 static void
 mmc_omap_xfer_data(struct mmc_omap_host *host, int write)
 {
-	int n;
+	int n, nwords;
 
 	if (host->buffer_bytes_left == 0) {
 		host->sg_idx++;
@@ -678,15 +676,23 @@ mmc_omap_xfer_data(struct mmc_omap_host *host, int write)
 	n = 64;
 	if (n > host->buffer_bytes_left)
 		n = host->buffer_bytes_left;
+
+	nwords = n / 2;
+	nwords += n & 1; /* handle odd number of bytes to transfer */
+
 	host->buffer_bytes_left -= n;
 	host->total_bytes_left -= n;
 	host->data->bytes_xfered += n;
 
 	if (write) {
-		__raw_writesw(host->virt_base + OMAP_MMC_REG(host, DATA), host->buffer, n);
+		__raw_writesw(host->virt_base + OMAP_MMC_REG(host, DATA),
+			      host->buffer, nwords);
 	} else {
-		__raw_readsw(host->virt_base + OMAP_MMC_REG(host, DATA), host->buffer, n);
+		__raw_readsw(host->virt_base + OMAP_MMC_REG(host, DATA),
+			     host->buffer, nwords);
 	}
+
+	host->buffer += nwords;
 }
 
 static inline void mmc_omap_report_irq(u16 status)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 3a09f93cc3b..38adc330c00 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -40,7 +40,6 @@
 #include <linux/regulator/consumer.h>
 #include <linux/pm_runtime.h>
 #include <mach/hardware.h>
-#include <plat/board.h>
 #include <plat/mmc.h>
 #include <plat/cpu.h>
 
@@ -447,7 +446,7 @@ static void omap_hsmmc_stop_clock(struct omap_hsmmc_host *host)
 	OMAP_HSMMC_WRITE(host->base, SYSCTL,
 		OMAP_HSMMC_READ(host->base, SYSCTL) & ~CEN);
 	if ((OMAP_HSMMC_READ(host->base, SYSCTL) & CEN) != 0x0)
-		dev_dbg(mmc_dev(host->mmc), "MMC Clock is not stoped\n");
+		dev_dbg(mmc_dev(host->mmc), "MMC Clock is not stopped\n");
 }
 
 static void omap_hsmmc_enable_irq(struct omap_hsmmc_host *host,
@@ -1782,7 +1781,7 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev)
 	if (match) {
 		pdata = of_get_hsmmc_pdata(&pdev->dev);
 		if (match->data) {
-			u16 *offsetp = match->data;
+			const u16 *offsetp = match->data;
 			pdata->reg_offset = *offsetp;
 		}
 	}
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index cb2dc0e75ba..ca3915dac03 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -35,7 +35,7 @@
 
 #include <mach/hardware.h>
 #include <mach/dma.h>
-#include <mach/mmc.h>
+#include <linux/platform_data/mmc-pxamci.h>
 
 #include "pxamci.h"
 
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index bd5a5cce122..4638ddab97b 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -27,7 +27,7 @@
 
 #include <mach/regs-sdi.h>
 
-#include <plat/mci.h>
+#include <linux/platform_data/mmc-s3cmci.h>
 
 #include "s3cmci.h"
 
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index e23f8134591..effc2acfe77 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -25,7 +25,7 @@
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <linux/pinctrl/consumer.h>
-#include <mach/esdhc.h>
+#include <linux/platform_data/mmc-esdhc-imx.h>
 #include "sdhci-pltfm.h"
 #include "sdhci-esdhc.h"
 
@@ -315,7 +315,7 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
 		new_val = val & (SDHCI_CTRL_LED | \
 				SDHCI_CTRL_4BITBUS | \
 				SDHCI_CTRL_D3CD);
-		/* ensure the endianess */
+		/* ensure the endianness */
 		new_val |= ESDHC_HOST_CONTROL_LE;
 		/* bits 8&9 are reserved on mx25 */
 		if (!is_imx25_esdhc(imx_data)) {
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index b97b2f5dafd..d25f9ab9a54 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -48,14 +48,14 @@ static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
 	int div = 1;
 	u32 temp;
 
+	if (clock == 0)
+		goto out;
+
 	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
 	temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
 		| ESDHC_CLOCK_MASK);
 	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
 
-	if (clock == 0)
-		goto out;
-
 	while (host->max_clk / pre_div / 16 > clock && pre_div < 256)
 		pre_div *= 2;
 
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 0810ccc23d7..d43e7462941 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -28,7 +28,7 @@
 #include <asm/gpio.h>
 
 #include <mach/gpio-tegra.h>
-#include <mach/sdhci.h>
+#include <linux/platform_data/mmc-sdhci-tegra.h>
 
 #include "sdhci-pltfm.h"
 
diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 3135a1a5d75..58eab9ac1d0 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -806,7 +806,7 @@ static void command_res_completed(struct urb *urb)
 		 * we suspect a buggy USB host controller
 		 */
 	} else if (!vub300->data) {
-		/* this means that the command (typically CMD52) suceeded */
+		/* this means that the command (typically CMD52) succeeded */
 	} else if (vub300->resp.common.header_type != 0x02) {
 		/*
 		 * this is an error response from the VUB300 chip
diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c
index cfff454f628..c3bb304eca0 100644
--- a/drivers/mtd/maps/uclinux.c
+++ b/drivers/mtd/maps/uclinux.c
@@ -19,14 +19,13 @@
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 #include <asm/io.h>
+#include <asm/sections.h>
 
 /****************************************************************************/
 
-extern char _ebss;
-
 struct map_info uclinux_ram_map = {
 	.name = "RAM",
-	.phys = (unsigned long)&_ebss,
+	.phys = (unsigned long)__bss_stop,
 	.size = 0,
 };
 
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index f2f482bec57..a6e74514e66 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1123,6 +1123,33 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file,
 }
 #endif
 
+static inline unsigned long get_vm_size(struct vm_area_struct *vma)
+{
+	return vma->vm_end - vma->vm_start;
+}
+
+static inline resource_size_t get_vm_offset(struct vm_area_struct *vma)
+{
+	return (resource_size_t) vma->vm_pgoff << PAGE_SHIFT;
+}
+
+/*
+ * Set a new vm offset.
+ *
+ * Verify that the incoming offset really works as a page offset,
+ * and that the offset and size fit in a resource_size_t.
+ */
+static inline int set_vm_offset(struct vm_area_struct *vma, resource_size_t off)
+{
+	pgoff_t pgoff = off >> PAGE_SHIFT;
+	if (off != (resource_size_t) pgoff << PAGE_SHIFT)
+		return -EINVAL;
+	if (off + get_vm_size(vma) - 1 < off)
+		return -EINVAL;
+	vma->vm_pgoff = pgoff;
+	return 0;
+}
+
 /*
  * set up a mapping for shared memory segments
  */
@@ -1132,20 +1159,29 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
 	struct map_info *map = mtd->priv;
-	unsigned long start;
-	unsigned long off;
-	u32 len;
+	resource_size_t start, off;
+	unsigned long len, vma_len;
 
 	if (mtd->type == MTD_RAM || mtd->type == MTD_ROM) {
-		off = vma->vm_pgoff << PAGE_SHIFT;
+		off = get_vm_offset(vma);
 		start = map->phys;
 		len = PAGE_ALIGN((start & ~PAGE_MASK) + map->size);
 		start &= PAGE_MASK;
-		if ((vma->vm_end - vma->vm_start + off) > len)
+		vma_len = get_vm_size(vma);
+
+		/* Overflow in off+len? */
+		if (vma_len + off < off)
+			return -EINVAL;
+		/* Does it fit in the mapping? */
+		if (vma_len + off > len)
 			return -EINVAL;
 
 		off += start;
-		vma->vm_pgoff = off >> PAGE_SHIFT;
+		/* Did that overflow? */
+		if (off < start)
+			return -EINVAL;
+		if (set_vm_offset(vma, off) < 0)
+			return -EINVAL;
 		vma->vm_flags |= VM_IO | VM_RESERVED;
 
 #ifdef pgprot_noncached
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 551e316e445..438737a1f59 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -387,8 +387,8 @@ static void mtdoops_notify_remove(struct mtd_info *mtd)
 		printk(KERN_WARNING "mtdoops: could not unregister kmsg_dumper\n");
 
 	cxt->mtd = NULL;
-	flush_work_sync(&cxt->work_erase);
-	flush_work_sync(&cxt->work_write);
+	flush_work(&cxt->work_erase);
+	flush_work(&cxt->work_write);
 }
 
 
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index d518e4db8a0..3a49e6de5e6 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -744,7 +744,7 @@ int parse_mtd_partitions(struct mtd_info *master, const char **types,
 	return ret;
 }
 
-int mtd_is_partition(struct mtd_info *mtd)
+int mtd_is_partition(const struct mtd_info *mtd)
 {
 	struct mtd_part *part;
 	int ispart = 0;
@@ -760,3 +760,13 @@ int mtd_is_partition(struct mtd_info *mtd)
 	return ispart;
 }
 EXPORT_SYMBOL_GPL(mtd_is_partition);
+
+/* Returns the size of the entire flash chip */
+uint64_t mtd_get_device_size(const struct mtd_info *mtd)
+{
+	if (!mtd_is_partition(mtd))
+		return mtd->size;
+
+	return PART(mtd)->master->size;
+}
+EXPORT_SYMBOL_GPL(mtd_get_device_size);
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 31bb7e5b504..598cd0a3ade 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -406,46 +406,6 @@ config MTD_NAND_ATMEL
 	help
 	  Enables support for NAND Flash / Smart Media Card interface
 	  on Atmel AT91 and AVR32 processors.
-choice
-	prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
-	depends on MTD_NAND_ATMEL
-
-config MTD_NAND_ATMEL_ECC_HW
-	bool "Hardware ECC"
-	depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
-	help
-	  Use hardware ECC instead of software ECC when the chip
-	  supports it.
-
-	  The hardware ECC controller is capable of single bit error
-	  correction and 2-bit random detection per page.
-
-	  NB : hardware and software ECC schemes are incompatible.
-	  If you switch from one to another, you'll have to erase your
-	  mtd partition.
-
-	  If unsure, say Y
-
-config MTD_NAND_ATMEL_ECC_SOFT
-	bool "Software ECC"
-	help
-	  Use software ECC.
-
-	  NB : hardware and software ECC schemes are incompatible.
-	  If you switch from one to another, you'll have to erase your
-	  mtd partition.
-
-config MTD_NAND_ATMEL_ECC_NONE
-	bool "No ECC (testing only, DANGEROUS)"
-	depends on DEBUG_KERNEL
-	help
-	  No ECC will be used.
-	  It's not a good idea and it should be reserved for testing
-	  purpose only.
-
-	  If unsure, say N
-
-endchoice
 
 config MTD_NAND_PXA3xx
 	tristate "Support for NAND flash devices on PXA3xx"
@@ -480,7 +440,7 @@ config MTD_NAND_NANDSIM
 
 config MTD_NAND_GPMI_NAND
         bool "GPMI NAND Flash Controller driver"
-        depends on MTD_NAND && (SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q)
+        depends on MTD_NAND && MXS_DMA
         help
 	 Enables NAND Flash support for IMX23 or IMX28.
 	 The GPMI controller is very powerful, with the help of BCH
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 861ca8f7e47..a7040af0853 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -23,11 +23,15 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
+
 #include <asm/io.h>
-#include <mach/hardware.h>
 #include <asm/sizes.h>
-#include <linux/gpio.h>
-#include <plat/board-ams-delta.h>
+
+#include <mach/board-ams-delta.h>
+
+#include <mach/hardware.h>
 
 /*
  * MTD structure for E3 (Delta)
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index c855e7cd337..d0d1bd4d0e7 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -249,20 +249,20 @@ static int nand_dev_ready(struct mtd_info *mtd)
 int bcm_umi_nand_inithw(void)
 {
 	/* Configure nand timing parameters */
-	REG_UMI_NAND_TCR &= ~0x7ffff;
-	REG_UMI_NAND_TCR |= HW_CFG_NAND_TCR;
+	writel(readl(&REG_UMI_NAND_TCR) & ~0x7ffff, &REG_UMI_NAND_TCR);
+	writel(readl(&REG_UMI_NAND_TCR) | HW_CFG_NAND_TCR, &REG_UMI_NAND_TCR);
 
 #if !defined(CONFIG_MTD_NAND_BCM_UMI_HWCS)
 	/* enable software control of CS */
-	REG_UMI_NAND_TCR |= REG_UMI_NAND_TCR_CS_SWCTRL;
+	writel(readl(&REG_UMI_NAND_TCR) | REG_UMI_NAND_TCR_CS_SWCTRL, &REG_UMI_NAND_TCR);
 #endif
 
 	/* keep NAND chip select asserted */
-	REG_UMI_NAND_RCSR |= REG_UMI_NAND_RCSR_CS_ASSERTED;
+	writel(readl(&REG_UMI_NAND_RCSR) | REG_UMI_NAND_RCSR_CS_ASSERTED, &REG_UMI_NAND_RCSR);
 
-	REG_UMI_NAND_TCR &= ~REG_UMI_NAND_TCR_WORD16;
+	writel(readl(&REG_UMI_NAND_TCR) & ~REG_UMI_NAND_TCR_WORD16, &REG_UMI_NAND_TCR);
 	/* enable writes to flash */
-	REG_UMI_MMD_ICR |= REG_UMI_MMD_ICR_FLASH_WP;
+	writel(readl(&REG_UMI_MMD_ICR) | REG_UMI_MMD_ICR_FLASH_WP, &REG_UMI_MMD_ICR);
 
 	writel(NAND_CMD_RESET, bcm_umi_io_base + REG_NAND_CMD_OFFSET);
 	nand_bcm_umi_wait_till_ready();
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index d94b03c207a..f1deb1ee2c9 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -34,8 +34,8 @@
 #include <linux/mtd/partitions.h>
 #include <linux/slab.h>
 
-#include <mach/nand.h>
-#include <mach/aemif.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mtd-davinci-aemif.h>
 
 /*
  * This is a device driver for the NAND flash controller found on the
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 6acc790c2fb..5683604967d 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -36,7 +36,7 @@
 #include <linux/of_mtd.h>
 
 #include <asm/mach/flash.h>
-#include <mach/mxc_nand.h>
+#include <linux/platform_data/mtd-mxc_nand.h>
 #include <mach/hardware.h>
 
 #define DRIVER_NAME "mxc_nand"
diff --git a/drivers/mtd/nand/nand_bcm_umi.h b/drivers/mtd/nand/nand_bcm_umi.h
index 198b304d6f7..d90186684db 100644
--- a/drivers/mtd/nand/nand_bcm_umi.h
+++ b/drivers/mtd/nand/nand_bcm_umi.h
@@ -17,7 +17,7 @@
 /* ---- Include Files ---------------------------------------------------- */
 #include <mach/reg_umi.h>
 #include <mach/reg_nand.h>
-#include <cfg_global.h>
+#include <mach/cfg_global.h>
 
 /* ---- Constants and Types ---------------------------------------------- */
 #if (CFG_GLOBAL_CHIP_FAMILY == CFG_GLOBAL_CHIP_FAMILY_BCMRING)
@@ -48,7 +48,7 @@ int nand_bcm_umi_bch_correct_page(uint8_t *datap, uint8_t *readEccData,
 /* Check in device is ready */
 static inline int nand_bcm_umi_dev_ready(void)
 {
-	return REG_UMI_NAND_RCSR & REG_UMI_NAND_RCSR_RDY;
+	return readl(&REG_UMI_NAND_RCSR) & REG_UMI_NAND_RCSR_RDY;
 }
 
 /* Wait until device is ready */
@@ -62,10 +62,11 @@ static inline void nand_bcm_umi_wait_till_ready(void)
 static inline void nand_bcm_umi_hamming_enable_hwecc(void)
 {
 	/* disable and reset ECC, 512 byte page */
-	REG_UMI_NAND_ECC_CSR &= ~(REG_UMI_NAND_ECC_CSR_ECC_ENABLE |
-		REG_UMI_NAND_ECC_CSR_256BYTE);
+	writel(readl(&REG_UMI_NAND_ECC_CSR) & ~(REG_UMI_NAND_ECC_CSR_ECC_ENABLE |
+		REG_UMI_NAND_ECC_CSR_256BYTE), &REG_UMI_NAND_ECC_CSR);
 	/* enable ECC */
-	REG_UMI_NAND_ECC_CSR |= REG_UMI_NAND_ECC_CSR_ECC_ENABLE;
+	writel(readl(&REG_UMI_NAND_ECC_CSR) | REG_UMI_NAND_ECC_CSR_ECC_ENABLE,
+		&REG_UMI_NAND_ECC_CSR);
 }
 
 #if NAND_ECC_BCH
@@ -76,18 +77,18 @@ static inline void nand_bcm_umi_hamming_enable_hwecc(void)
 static inline void nand_bcm_umi_bch_enable_read_hwecc(void)
 {
 	/* disable and reset ECC */
-	REG_UMI_BCH_CTRL_STATUS = REG_UMI_BCH_CTRL_STATUS_RD_ECC_VALID;
+	writel(REG_UMI_BCH_CTRL_STATUS_RD_ECC_VALID, &REG_UMI_BCH_CTRL_STATUS);
 	/* Turn on ECC */
-	REG_UMI_BCH_CTRL_STATUS = REG_UMI_BCH_CTRL_STATUS_ECC_RD_EN;
+	writel(REG_UMI_BCH_CTRL_STATUS_ECC_RD_EN, &REG_UMI_BCH_CTRL_STATUS);
 }
 
 /* Enable BCH Write ECC */
 static inline void nand_bcm_umi_bch_enable_write_hwecc(void)
 {
 	/* disable and reset ECC */
-	REG_UMI_BCH_CTRL_STATUS = REG_UMI_BCH_CTRL_STATUS_WR_ECC_VALID;
+	writel(REG_UMI_BCH_CTRL_STATUS_WR_ECC_VALID, &REG_UMI_BCH_CTRL_STATUS);
 	/* Turn on ECC */
-	REG_UMI_BCH_CTRL_STATUS = REG_UMI_BCH_CTRL_STATUS_ECC_WR_EN;
+	writel(REG_UMI_BCH_CTRL_STATUS_ECC_WR_EN, &REG_UMI_BCH_CTRL_STATUS);
 }
 
 /* Config number of BCH ECC bytes */
@@ -99,9 +100,9 @@ static inline void nand_bcm_umi_bch_config_ecc(uint8_t numEccBytes)
 	uint32_t numBits = numEccBytes * 8;
 
 	/* disable and reset ECC */
-	REG_UMI_BCH_CTRL_STATUS =
-	    REG_UMI_BCH_CTRL_STATUS_WR_ECC_VALID |
-	    REG_UMI_BCH_CTRL_STATUS_RD_ECC_VALID;
+	writel(REG_UMI_BCH_CTRL_STATUS_WR_ECC_VALID |
+	       REG_UMI_BCH_CTRL_STATUS_RD_ECC_VALID,
+	       &REG_UMI_BCH_CTRL_STATUS);
 
 	/* Every correctible bit requires 13 ECC bits */
 	tValue = (uint32_t) (numBits / ECC_BITS_PER_CORRECTABLE_BIT);
@@ -113,23 +114,21 @@ static inline void nand_bcm_umi_bch_config_ecc(uint8_t numEccBytes)
 	kValue = nValue - (tValue * ECC_BITS_PER_CORRECTABLE_BIT);
 
 	/* Write the settings */
-	REG_UMI_BCH_N = nValue;
-	REG_UMI_BCH_T = tValue;
-	REG_UMI_BCH_K = kValue;
+	writel(nValue, &REG_UMI_BCH_N);
+	writel(tValue, &REG_UMI_BCH_T);
+	writel(kValue, &REG_UMI_BCH_K);
 }
 
 /* Pause during ECC read calculation to skip bytes in OOB */
 static inline void nand_bcm_umi_bch_pause_read_ecc_calc(void)
 {
-	REG_UMI_BCH_CTRL_STATUS =
-	    REG_UMI_BCH_CTRL_STATUS_ECC_RD_EN |
-	    REG_UMI_BCH_CTRL_STATUS_PAUSE_ECC_DEC;
+	writel(REG_UMI_BCH_CTRL_STATUS_ECC_RD_EN | REG_UMI_BCH_CTRL_STATUS_PAUSE_ECC_DEC, &REG_UMI_BCH_CTRL_STATUS);
 }
 
 /* Resume during ECC read calculation after skipping bytes in OOB */
 static inline void nand_bcm_umi_bch_resume_read_ecc_calc(void)
 {
-	REG_UMI_BCH_CTRL_STATUS = REG_UMI_BCH_CTRL_STATUS_ECC_RD_EN;
+	writel(REG_UMI_BCH_CTRL_STATUS_ECC_RD_EN, &REG_UMI_BCH_CTRL_STATUS);
 }
 
 /* Poll read ECC calc to check when hardware completes */
@@ -139,7 +138,7 @@ static inline uint32_t nand_bcm_umi_bch_poll_read_ecc_calc(void)
 
 	do {
 		/* wait for ECC to be valid */
-		regVal = REG_UMI_BCH_CTRL_STATUS;
+		regVal = readl(&REG_UMI_BCH_CTRL_STATUS);
 	} while ((regVal & REG_UMI_BCH_CTRL_STATUS_RD_ECC_VALID) == 0);
 
 	return regVal;
@@ -149,7 +148,7 @@ static inline uint32_t nand_bcm_umi_bch_poll_read_ecc_calc(void)
 static inline void nand_bcm_umi_bch_poll_write_ecc_calc(void)
 {
 	/* wait for ECC to be valid */
-	while ((REG_UMI_BCH_CTRL_STATUS & REG_UMI_BCH_CTRL_STATUS_WR_ECC_VALID)
+	while ((readl(&REG_UMI_BCH_CTRL_STATUS) & REG_UMI_BCH_CTRL_STATUS_WR_ECC_VALID)
 	       == 0)
 		;
 }
@@ -170,9 +169,9 @@ static inline void nand_bcm_umi_bch_read_oobEcc(uint32_t pageSize,
 	if (pageSize != NAND_DATA_ACCESS_SIZE) {
 		/* skip BI */
 #if defined(__KERNEL__) && !defined(STANDALONE)
-		*oobp++ = REG_NAND_DATA8;
+		*oobp++ = readb(&REG_NAND_DATA8);
 #else
-		REG_NAND_DATA8;
+		readb(&REG_NAND_DATA8);
 #endif
 		numToRead--;
 	}
@@ -180,9 +179,9 @@ static inline void nand_bcm_umi_bch_read_oobEcc(uint32_t pageSize,
 	while (numToRead > numEccBytes) {
 		/* skip free oob region */
 #if defined(__KERNEL__) && !defined(STANDALONE)
-		*oobp++ = REG_NAND_DATA8;
+		*oobp++ = readb(&REG_NAND_DATA8);
 #else
-		REG_NAND_DATA8;
+		readb(&REG_NAND_DATA8);
 #endif
 		numToRead--;
 	}
@@ -193,11 +192,11 @@ static inline void nand_bcm_umi_bch_read_oobEcc(uint32_t pageSize,
 
 		while (numToRead > 11) {
 #if defined(__KERNEL__) && !defined(STANDALONE)
-			*oobp = REG_NAND_DATA8;
+			*oobp = readb(&REG_NAND_DATA8);
 			eccCalc[eccPos++] = *oobp;
 			oobp++;
 #else
-			eccCalc[eccPos++] = REG_NAND_DATA8;
+			eccCalc[eccPos++] = readb(&REG_NAND_DATA8);
 #endif
 			numToRead--;
 		}
@@ -207,9 +206,9 @@ static inline void nand_bcm_umi_bch_read_oobEcc(uint32_t pageSize,
 		if (numToRead == 11) {
 			/* read BI */
 #if defined(__KERNEL__) && !defined(STANDALONE)
-			*oobp++ = REG_NAND_DATA8;
+			*oobp++ = readb(&REG_NAND_DATA8);
 #else
-			REG_NAND_DATA8;
+			readb(&REG_NAND_DATA8);
 #endif
 			numToRead--;
 		}
@@ -219,11 +218,11 @@ static inline void nand_bcm_umi_bch_read_oobEcc(uint32_t pageSize,
 	nand_bcm_umi_bch_resume_read_ecc_calc();
 	while (numToRead) {
 #if defined(__KERNEL__) && !defined(STANDALONE)
-		*oobp = REG_NAND_DATA8;
+		*oobp = readb(&REG_NAND_DATA8);
 		eccCalc[eccPos++] = *oobp;
 		oobp++;
 #else
-		eccCalc[eccPos++] = REG_NAND_DATA8;
+		eccCalc[eccPos++] = readb(&REG_NAND_DATA8);
 #endif
 		numToRead--;
 	}
@@ -255,7 +254,7 @@ static inline void nand_bcm_umi_bch_write_oobEcc(uint32_t pageSize,
 	if (pageSize == NAND_DATA_ACCESS_SIZE) {
 		/* Now fill in the ECC bytes */
 		if (numEccBytes >= 13)
-			eccVal = REG_UMI_BCH_WR_ECC_3;
+			eccVal = readl(&REG_UMI_BCH_WR_ECC_3);
 
 		/* Usually we skip CM in oob[0,1] */
 		NAND_BCM_UMI_ECC_WRITE(numEccBytes, 15, &oobp[0],
@@ -268,7 +267,7 @@ static inline void nand_bcm_umi_bch_write_oobEcc(uint32_t pageSize,
 			eccVal & 0xff);	/* ECC 12 */
 
 		if (numEccBytes >= 9)
-			eccVal = REG_UMI_BCH_WR_ECC_2;
+			eccVal = readl(&REG_UMI_BCH_WR_ECC_2);
 
 		NAND_BCM_UMI_ECC_WRITE(numEccBytes, 12, &oobp[3],
 			(eccVal >> 24) & 0xff);	/* ECC11 */
@@ -281,7 +280,7 @@ static inline void nand_bcm_umi_bch_write_oobEcc(uint32_t pageSize,
 
 		/* Now fill in the ECC bytes */
 		if (numEccBytes >= 13)
-			eccVal = REG_UMI_BCH_WR_ECC_3;
+			eccVal = readl(&REG_UMI_BCH_WR_ECC_3);
 
 		/* Usually skip CM in oob[1,2] */
 		NAND_BCM_UMI_ECC_WRITE(numEccBytes, 15, &oobp[1],
@@ -294,7 +293,7 @@ static inline void nand_bcm_umi_bch_write_oobEcc(uint32_t pageSize,
 			eccVal & 0xff);	/* ECC12 */
 
 		if (numEccBytes >= 9)
-			eccVal = REG_UMI_BCH_WR_ECC_2;
+			eccVal = readl(&REG_UMI_BCH_WR_ECC_2);
 
 		NAND_BCM_UMI_ECC_WRITE(numEccBytes, 12, &oobp[4],
 			(eccVal >> 24) & 0xff);	/* ECC11 */
@@ -309,7 +308,7 @@ static inline void nand_bcm_umi_bch_write_oobEcc(uint32_t pageSize,
 		eccVal & 0xff);	/* ECC8 */
 
 	if (numEccBytes >= 5)
-		eccVal = REG_UMI_BCH_WR_ECC_1;
+		eccVal = readl(&REG_UMI_BCH_WR_ECC_1);
 
 	NAND_BCM_UMI_ECC_WRITE(numEccBytes, 8, &oobp[8],
 		(eccVal >> 24) & 0xff);	/* ECC7 */
@@ -321,7 +320,7 @@ static inline void nand_bcm_umi_bch_write_oobEcc(uint32_t pageSize,
 		eccVal & 0xff);	/* ECC4 */
 
 	if (numEccBytes >= 1)
-		eccVal = REG_UMI_BCH_WR_ECC_0;
+		eccVal = readl(&REG_UMI_BCH_WR_ECC_0);
 
 	NAND_BCM_UMI_ECC_WRITE(numEccBytes, 4, &oobp[12],
 		(eccVal >> 24) & 0xff);	/* ECC3 */
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index a86aa812ca1..9ee0c4edfac 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -31,7 +31,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
 #include <linux/slab.h>
-#include <mach/nand.h>
+#include <linux/platform_data/mtd-nomadik-nand.h>
 #include <mach/fsmc.h>
 
 #include <mtd/mtd-abi.h>
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index e9309b3659e..fc8111278d1 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -29,7 +29,7 @@
 
 #include <plat/dma.h>
 #include <plat/gpmc.h>
-#include <plat/nand.h>
+#include <linux/platform_data/mtd-nand-omap2.h>
 
 #define	DRIVER_NAME	"omap2-nand"
 #define	OMAP_NAND_TIMEOUT_MS	5000
@@ -101,6 +101,16 @@
 #define P4e_s(a)	(TF(a & NAND_Ecc_P4e)		<< 0)
 #define P4o_s(a)	(TF(a & NAND_Ecc_P4o)		<< 1)
 
+#define	PREFETCH_CONFIG1_CS_SHIFT	24
+#define	ECC_CONFIG_CS_SHIFT		1
+#define	CS_MASK				0x7
+#define	ENABLE_PREFETCH			(0x1 << 7)
+#define	DMA_MPU_MODE_SHIFT		2
+#define	ECCSIZE1_SHIFT			22
+#define	ECC1RESULTSIZE			0x1
+#define	ECCCLEAR			0x100
+#define	ECC1				0x1
+
 /* oob info generated runtime depending on ecc algorithm and layout selected */
 static struct nand_ecclayout omap_oobinfo;
 /* Define some generic bad / good block scan pattern which are used
@@ -124,15 +134,18 @@ struct omap_nand_info {
 
 	int				gpmc_cs;
 	unsigned long			phys_base;
+	unsigned long			mem_size;
 	struct completion		comp;
 	struct dma_chan			*dma;
-	int				gpmc_irq;
+	int				gpmc_irq_fifo;
+	int				gpmc_irq_count;
 	enum {
 		OMAP_NAND_IO_READ = 0,	/* read */
 		OMAP_NAND_IO_WRITE,	/* write */
 	} iomode;
 	u_char				*buf;
 	int					buf_len;
+	struct gpmc_nand_regs		reg;
 
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
 	struct bch_control             *bch;
@@ -141,6 +154,63 @@ struct omap_nand_info {
 };
 
 /**
+ * omap_prefetch_enable - configures and starts prefetch transfer
+ * @cs: cs (chip select) number
+ * @fifo_th: fifo threshold to be used for read/ write
+ * @dma_mode: dma mode enable (1) or disable (0)
+ * @u32_count: number of bytes to be transferred
+ * @is_write: prefetch read(0) or write post(1) mode
+ */
+static int omap_prefetch_enable(int cs, int fifo_th, int dma_mode,
+	unsigned int u32_count, int is_write, struct omap_nand_info *info)
+{
+	u32 val;
+
+	if (fifo_th > PREFETCH_FIFOTHRESHOLD_MAX)
+		return -1;
+
+	if (readl(info->reg.gpmc_prefetch_control))
+		return -EBUSY;
+
+	/* Set the amount of bytes to be prefetched */
+	writel(u32_count, info->reg.gpmc_prefetch_config2);
+
+	/* Set dma/mpu mode, the prefetch read / post write and
+	 * enable the engine. Set which cs is has requested for.
+	 */
+	val = ((cs << PREFETCH_CONFIG1_CS_SHIFT) |
+		PREFETCH_FIFOTHRESHOLD(fifo_th) | ENABLE_PREFETCH |
+		(dma_mode << DMA_MPU_MODE_SHIFT) | (0x1 & is_write));
+	writel(val, info->reg.gpmc_prefetch_config1);
+
+	/*  Start the prefetch engine */
+	writel(0x1, info->reg.gpmc_prefetch_control);
+
+	return 0;
+}
+
+/**
+ * omap_prefetch_reset - disables and stops the prefetch engine
+ */
+static int omap_prefetch_reset(int cs, struct omap_nand_info *info)
+{
+	u32 config1;
+
+	/* check if the same module/cs is trying to reset */
+	config1 = readl(info->reg.gpmc_prefetch_config1);
+	if (((config1 >> PREFETCH_CONFIG1_CS_SHIFT) & CS_MASK) != cs)
+		return -EINVAL;
+
+	/* Stop the PFPW engine */
+	writel(0x0, info->reg.gpmc_prefetch_control);
+
+	/* Reset/disable the PFPW engine */
+	writel(0x0, info->reg.gpmc_prefetch_config1);
+
+	return 0;
+}
+
+/**
  * omap_hwcontrol - hardware specific access to control-lines
  * @mtd: MTD device structure
  * @cmd: command to device
@@ -158,13 +228,13 @@ static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 	if (cmd != NAND_CMD_NONE) {
 		if (ctrl & NAND_CLE)
-			gpmc_nand_write(info->gpmc_cs, GPMC_NAND_COMMAND, cmd);
+			writeb(cmd, info->reg.gpmc_nand_command);
 
 		else if (ctrl & NAND_ALE)
-			gpmc_nand_write(info->gpmc_cs, GPMC_NAND_ADDRESS, cmd);
+			writeb(cmd, info->reg.gpmc_nand_address);
 
 		else /* NAND_NCE */
-			gpmc_nand_write(info->gpmc_cs, GPMC_NAND_DATA, cmd);
+			writeb(cmd, info->reg.gpmc_nand_data);
 	}
 }
 
@@ -198,7 +268,8 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
 		iowrite8(*p++, info->nand.IO_ADDR_W);
 		/* wait until buffer is available for write */
 		do {
-			status = gpmc_read_status(GPMC_STATUS_BUFFER);
+			status = readl(info->reg.gpmc_status) &
+					GPMC_STATUS_BUFF_EMPTY;
 		} while (!status);
 	}
 }
@@ -235,7 +306,8 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
 		iowrite16(*p++, info->nand.IO_ADDR_W);
 		/* wait until buffer is available for write */
 		do {
-			status = gpmc_read_status(GPMC_STATUS_BUFFER);
+			status = readl(info->reg.gpmc_status) &
+					GPMC_STATUS_BUFF_EMPTY;
 		} while (!status);
 	}
 }
@@ -265,8 +337,8 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len)
 	}
 
 	/* configure and start prefetch transfer */
-	ret = gpmc_prefetch_enable(info->gpmc_cs,
-			PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x0);
+	ret = omap_prefetch_enable(info->gpmc_cs,
+			PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x0, info);
 	if (ret) {
 		/* PFPW engine is busy, use cpu copy method */
 		if (info->nand.options & NAND_BUSWIDTH_16)
@@ -275,14 +347,15 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len)
 			omap_read_buf8(mtd, (u_char *)p, len);
 	} else {
 		do {
-			r_count = gpmc_read_status(GPMC_PREFETCH_FIFO_CNT);
+			r_count = readl(info->reg.gpmc_prefetch_status);
+			r_count = GPMC_PREFETCH_STATUS_FIFO_CNT(r_count);
 			r_count = r_count >> 2;
 			ioread32_rep(info->nand.IO_ADDR_R, p, r_count);
 			p += r_count;
 			len -= r_count << 2;
 		} while (len);
 		/* disable and stop the PFPW engine */
-		gpmc_prefetch_reset(info->gpmc_cs);
+		omap_prefetch_reset(info->gpmc_cs, info);
 	}
 }
 
@@ -301,6 +374,7 @@ static void omap_write_buf_pref(struct mtd_info *mtd,
 	int i = 0, ret = 0;
 	u16 *p = (u16 *)buf;
 	unsigned long tim, limit;
+	u32 val;
 
 	/* take care of subpage writes */
 	if (len % 2 != 0) {
@@ -310,8 +384,8 @@ static void omap_write_buf_pref(struct mtd_info *mtd,
 	}
 
 	/*  configure and start prefetch transfer */
-	ret = gpmc_prefetch_enable(info->gpmc_cs,
-			PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x1);
+	ret = omap_prefetch_enable(info->gpmc_cs,
+			PREFETCH_FIFOTHRESHOLD_MAX, 0x0, len, 0x1, info);
 	if (ret) {
 		/* PFPW engine is busy, use cpu copy method */
 		if (info->nand.options & NAND_BUSWIDTH_16)
@@ -320,7 +394,8 @@ static void omap_write_buf_pref(struct mtd_info *mtd,
 			omap_write_buf8(mtd, (u_char *)p, len);
 	} else {
 		while (len) {
-			w_count = gpmc_read_status(GPMC_PREFETCH_FIFO_CNT);
+			w_count = readl(info->reg.gpmc_prefetch_status);
+			w_count = GPMC_PREFETCH_STATUS_FIFO_CNT(w_count);
 			w_count = w_count >> 1;
 			for (i = 0; (i < w_count) && len; i++, len -= 2)
 				iowrite16(*p++, info->nand.IO_ADDR_W);
@@ -329,11 +404,14 @@ static void omap_write_buf_pref(struct mtd_info *mtd,
 		tim = 0;
 		limit = (loops_per_jiffy *
 					msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS));
-		while (gpmc_read_status(GPMC_PREFETCH_COUNT) && (tim++ < limit))
+		do {
 			cpu_relax();
+			val = readl(info->reg.gpmc_prefetch_status);
+			val = GPMC_PREFETCH_STATUS_COUNT(val);
+		} while (val && (tim++ < limit));
 
 		/* disable and stop the PFPW engine */
-		gpmc_prefetch_reset(info->gpmc_cs);
+		omap_prefetch_reset(info->gpmc_cs, info);
 	}
 }
 
@@ -365,6 +443,7 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr,
 	unsigned long tim, limit;
 	unsigned n;
 	int ret;
+	u32 val;
 
 	if (addr >= high_memory) {
 		struct page *p1;
@@ -396,9 +475,9 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr,
 	tx->callback_param = &info->comp;
 	dmaengine_submit(tx);
 
-	/* configure and start prefetch transfer */
-	ret = gpmc_prefetch_enable(info->gpmc_cs,
-		PREFETCH_FIFOTHRESHOLD_MAX, 0x1, len, is_write);
+	/*  configure and start prefetch transfer */
+	ret = omap_prefetch_enable(info->gpmc_cs,
+		PREFETCH_FIFOTHRESHOLD_MAX, 0x1, len, is_write, info);
 	if (ret)
 		/* PFPW engine is busy, use cpu copy method */
 		goto out_copy_unmap;
@@ -410,11 +489,15 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr,
 	wait_for_completion(&info->comp);
 	tim = 0;
 	limit = (loops_per_jiffy * msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS));
-	while (gpmc_read_status(GPMC_PREFETCH_COUNT) && (tim++ < limit))
+
+	do {
 		cpu_relax();
+		val = readl(info->reg.gpmc_prefetch_status);
+		val = GPMC_PREFETCH_STATUS_COUNT(val);
+	} while (val && (tim++ < limit));
 
 	/* disable and stop the PFPW engine */
-	gpmc_prefetch_reset(info->gpmc_cs);
+	omap_prefetch_reset(info->gpmc_cs, info);
 
 	dma_unmap_sg(info->dma->device->dev, &sg, 1, dir);
 	return 0;
@@ -471,13 +554,12 @@ static irqreturn_t omap_nand_irq(int this_irq, void *dev)
 {
 	struct omap_nand_info *info = (struct omap_nand_info *) dev;
 	u32 bytes;
-	u32 irq_stat;
 
-	irq_stat = gpmc_read_status(GPMC_GET_IRQ_STATUS);
-	bytes = gpmc_read_status(GPMC_PREFETCH_FIFO_CNT);
+	bytes = readl(info->reg.gpmc_prefetch_status);
+	bytes = GPMC_PREFETCH_STATUS_FIFO_CNT(bytes);
 	bytes = bytes  & 0xFFFC; /* io in multiple of 4 bytes */
 	if (info->iomode == OMAP_NAND_IO_WRITE) { /* checks for write io */
-		if (irq_stat & 0x2)
+		if (this_irq == info->gpmc_irq_count)
 			goto done;
 
 		if (info->buf_len && (info->buf_len < bytes))
@@ -494,20 +576,17 @@ static irqreturn_t omap_nand_irq(int this_irq, void *dev)
 						(u32 *)info->buf, bytes >> 2);
 		info->buf = info->buf + bytes;
 
-		if (irq_stat & 0x2)
+		if (this_irq == info->gpmc_irq_count)
 			goto done;
 	}
-	gpmc_cs_configure(info->gpmc_cs, GPMC_SET_IRQ_STATUS, irq_stat);
 
 	return IRQ_HANDLED;
 
 done:
 	complete(&info->comp);
-	/* disable irq */
-	gpmc_cs_configure(info->gpmc_cs, GPMC_ENABLE_IRQ, 0);
 
-	/* clear status */
-	gpmc_cs_configure(info->gpmc_cs, GPMC_SET_IRQ_STATUS, irq_stat);
+	disable_irq_nosync(info->gpmc_irq_fifo);
+	disable_irq_nosync(info->gpmc_irq_count);
 
 	return IRQ_HANDLED;
 }
@@ -534,22 +613,22 @@ static void omap_read_buf_irq_pref(struct mtd_info *mtd, u_char *buf, int len)
 	init_completion(&info->comp);
 
 	/*  configure and start prefetch transfer */
-	ret = gpmc_prefetch_enable(info->gpmc_cs,
-			PREFETCH_FIFOTHRESHOLD_MAX/2, 0x0, len, 0x0);
+	ret = omap_prefetch_enable(info->gpmc_cs,
+			PREFETCH_FIFOTHRESHOLD_MAX/2, 0x0, len, 0x0, info);
 	if (ret)
 		/* PFPW engine is busy, use cpu copy method */
 		goto out_copy;
 
 	info->buf_len = len;
-	/* enable irq */
-	gpmc_cs_configure(info->gpmc_cs, GPMC_ENABLE_IRQ,
-		(GPMC_IRQ_FIFOEVENTENABLE | GPMC_IRQ_COUNT_EVENT));
+
+	enable_irq(info->gpmc_irq_count);
+	enable_irq(info->gpmc_irq_fifo);
 
 	/* waiting for read to complete */
 	wait_for_completion(&info->comp);
 
 	/* disable and stop the PFPW engine */
-	gpmc_prefetch_reset(info->gpmc_cs);
+	omap_prefetch_reset(info->gpmc_cs, info);
 	return;
 
 out_copy:
@@ -572,6 +651,7 @@ static void omap_write_buf_irq_pref(struct mtd_info *mtd,
 						struct omap_nand_info, mtd);
 	int ret = 0;
 	unsigned long tim, limit;
+	u32 val;
 
 	if (len <= mtd->oobsize) {
 		omap_write_buf_pref(mtd, buf, len);
@@ -583,27 +663,31 @@ static void omap_write_buf_irq_pref(struct mtd_info *mtd,
 	init_completion(&info->comp);
 
 	/* configure and start prefetch transfer : size=24 */
-	ret = gpmc_prefetch_enable(info->gpmc_cs,
-			(PREFETCH_FIFOTHRESHOLD_MAX * 3) / 8, 0x0, len, 0x1);
+	ret = omap_prefetch_enable(info->gpmc_cs,
+		(PREFETCH_FIFOTHRESHOLD_MAX * 3) / 8, 0x0, len, 0x1, info);
 	if (ret)
 		/* PFPW engine is busy, use cpu copy method */
 		goto out_copy;
 
 	info->buf_len = len;
-	/* enable irq */
-	gpmc_cs_configure(info->gpmc_cs, GPMC_ENABLE_IRQ,
-			(GPMC_IRQ_FIFOEVENTENABLE | GPMC_IRQ_COUNT_EVENT));
+
+	enable_irq(info->gpmc_irq_count);
+	enable_irq(info->gpmc_irq_fifo);
 
 	/* waiting for write to complete */
 	wait_for_completion(&info->comp);
+
 	/* wait for data to flushed-out before reset the prefetch */
 	tim = 0;
 	limit = (loops_per_jiffy *  msecs_to_jiffies(OMAP_NAND_TIMEOUT_MS));
-	while (gpmc_read_status(GPMC_PREFETCH_COUNT) && (tim++ < limit))
+	do {
+		val = readl(info->reg.gpmc_prefetch_status);
+		val = GPMC_PREFETCH_STATUS_COUNT(val);
 		cpu_relax();
+	} while (val && (tim++ < limit));
 
 	/* disable and stop the PFPW engine */
-	gpmc_prefetch_reset(info->gpmc_cs);
+	omap_prefetch_reset(info->gpmc_cs, info);
 	return;
 
 out_copy:
@@ -843,7 +927,20 @@ static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 {
 	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
 							mtd);
-	return gpmc_calculate_ecc(info->gpmc_cs, dat, ecc_code);
+	u32 val;
+
+	val = readl(info->reg.gpmc_ecc_config);
+	if (((val >> ECC_CONFIG_CS_SHIFT)  & ~CS_MASK) != info->gpmc_cs)
+		return -EINVAL;
+
+	/* read ecc result */
+	val = readl(info->reg.gpmc_ecc1_result);
+	*ecc_code++ = val;          /* P128e, ..., P1e */
+	*ecc_code++ = val >> 16;    /* P128o, ..., P1o */
+	/* P2048o, P1024o, P512o, P256o, P2048e, P1024e, P512e, P256e */
+	*ecc_code++ = ((val >> 8) & 0x0f) | ((val >> 20) & 0xf0);
+
+	return 0;
 }
 
 /**
@@ -857,8 +954,34 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
 							mtd);
 	struct nand_chip *chip = mtd->priv;
 	unsigned int dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0;
+	u32 val;
+
+	/* clear ecc and enable bits */
+	val = ECCCLEAR | ECC1;
+	writel(val, info->reg.gpmc_ecc_control);
+
+	/* program ecc and result sizes */
+	val = ((((info->nand.ecc.size >> 1) - 1) << ECCSIZE1_SHIFT) |
+			 ECC1RESULTSIZE);
+	writel(val, info->reg.gpmc_ecc_size_config);
 
-	gpmc_enable_hwecc(info->gpmc_cs, mode, dev_width, info->nand.ecc.size);
+	switch (mode) {
+	case NAND_ECC_READ:
+	case NAND_ECC_WRITE:
+		writel(ECCCLEAR | ECC1, info->reg.gpmc_ecc_control);
+		break;
+	case NAND_ECC_READSYN:
+		writel(ECCCLEAR, info->reg.gpmc_ecc_control);
+		break;
+	default:
+		dev_info(&info->pdev->dev,
+			"error: unrecognized Mode[%d]!\n", mode);
+		break;
+	}
+
+	/* (ECC 16 or 8 bit col) | ( CS  )  | ECC Enable */
+	val = (dev_width << 7) | (info->gpmc_cs << 1) | (0x1);
+	writel(val, info->reg.gpmc_ecc_config);
 }
 
 /**
@@ -886,10 +1009,9 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
 	else
 		timeo += (HZ * 20) / 1000;
 
-	gpmc_nand_write(info->gpmc_cs,
-			GPMC_NAND_COMMAND, (NAND_CMD_STATUS & 0xFF));
+	writeb(NAND_CMD_STATUS & 0xFF, info->reg.gpmc_nand_command);
 	while (time_before(jiffies, timeo)) {
-		status = gpmc_nand_read(info->gpmc_cs, GPMC_NAND_DATA);
+		status = readb(info->reg.gpmc_nand_data);
 		if (status & NAND_STATUS_READY)
 			break;
 		cond_resched();
@@ -909,22 +1031,13 @@ static int omap_dev_ready(struct mtd_info *mtd)
 	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
 							mtd);
 
-	val = gpmc_read_status(GPMC_GET_IRQ_STATUS);
+	val = readl(info->reg.gpmc_status);
+
 	if ((val & 0x100) == 0x100) {
-		/* Clear IRQ Interrupt */
-		val |= 0x100;
-		val &= ~(0x0);
-		gpmc_cs_configure(info->gpmc_cs, GPMC_SET_IRQ_STATUS, val);
+		return 1;
 	} else {
-		unsigned int cnt = 0;
-		while (cnt++ < 0x1FF) {
-			if  ((val & 0x100) == 0x100)
-				return 0;
-			val = gpmc_read_status(GPMC_GET_IRQ_STATUS);
-		}
+		return 0;
 	}
-
-	return 1;
 }
 
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
@@ -1155,6 +1268,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 	int				i, offset;
 	dma_cap_mask_t mask;
 	unsigned sig;
+	struct resource			*res;
 
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL) {
@@ -1174,7 +1288,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 	info->pdev = pdev;
 
 	info->gpmc_cs		= pdata->cs;
-	info->phys_base		= pdata->phys_base;
+	info->reg		= pdata->reg;
 
 	info->mtd.priv		= &info->nand;
 	info->mtd.name		= dev_name(&pdev->dev);
@@ -1183,16 +1297,23 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 	info->nand.options	= pdata->devsize;
 	info->nand.options	|= NAND_SKIP_BBTSCAN;
 
-	/* NAND write protect off */
-	gpmc_cs_configure(info->gpmc_cs, GPMC_CONFIG_WP, 0);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		err = -EINVAL;
+		dev_err(&pdev->dev, "error getting memory resource\n");
+		goto out_free_info;
+	}
+
+	info->phys_base = res->start;
+	info->mem_size = resource_size(res);
 
-	if (!request_mem_region(info->phys_base, NAND_IO_SIZE,
+	if (!request_mem_region(info->phys_base, info->mem_size,
 				pdev->dev.driver->name)) {
 		err = -EBUSY;
 		goto out_free_info;
 	}
 
-	info->nand.IO_ADDR_R = ioremap(info->phys_base, NAND_IO_SIZE);
+	info->nand.IO_ADDR_R = ioremap(info->phys_base, info->mem_size);
 	if (!info->nand.IO_ADDR_R) {
 		err = -ENOMEM;
 		goto out_release_mem_region;
@@ -1245,7 +1366,6 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 			goto out_release_mem_region;
 		} else {
 			struct dma_slave_config cfg;
-			int rc;
 
 			memset(&cfg, 0, sizeof(cfg));
 			cfg.src_addr = info->phys_base;
@@ -1254,10 +1374,10 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 			cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 			cfg.src_maxburst = 16;
 			cfg.dst_maxburst = 16;
-			rc = dmaengine_slave_config(info->dma, &cfg);
-			if (rc) {
+			err = dmaengine_slave_config(info->dma, &cfg);
+			if (err) {
 				dev_err(&pdev->dev, "DMA engine slave config failed: %d\n",
-					rc);
+					err);
 				goto out_release_mem_region;
 			}
 			info->nand.read_buf   = omap_read_buf_dma_pref;
@@ -1266,17 +1386,39 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 		break;
 
 	case NAND_OMAP_PREFETCH_IRQ:
-		err = request_irq(pdata->gpmc_irq,
-				omap_nand_irq, IRQF_SHARED, "gpmc-nand", info);
+		info->gpmc_irq_fifo = platform_get_irq(pdev, 0);
+		if (info->gpmc_irq_fifo <= 0) {
+			dev_err(&pdev->dev, "error getting fifo irq\n");
+			err = -ENODEV;
+			goto out_release_mem_region;
+		}
+		err = request_irq(info->gpmc_irq_fifo,	omap_nand_irq,
+					IRQF_SHARED, "gpmc-nand-fifo", info);
 		if (err) {
 			dev_err(&pdev->dev, "requesting irq(%d) error:%d",
-							pdata->gpmc_irq, err);
+						info->gpmc_irq_fifo, err);
+			info->gpmc_irq_fifo = 0;
+			goto out_release_mem_region;
+		}
+
+		info->gpmc_irq_count = platform_get_irq(pdev, 1);
+		if (info->gpmc_irq_count <= 0) {
+			dev_err(&pdev->dev, "error getting count irq\n");
+			err = -ENODEV;
+			goto out_release_mem_region;
+		}
+		err = request_irq(info->gpmc_irq_count,	omap_nand_irq,
+					IRQF_SHARED, "gpmc-nand-count", info);
+		if (err) {
+			dev_err(&pdev->dev, "requesting irq(%d) error:%d",
+						info->gpmc_irq_count, err);
+			info->gpmc_irq_count = 0;
 			goto out_release_mem_region;
-		} else {
-			info->gpmc_irq	     = pdata->gpmc_irq;
-			info->nand.read_buf  = omap_read_buf_irq_pref;
-			info->nand.write_buf = omap_write_buf_irq_pref;
 		}
+
+		info->nand.read_buf  = omap_read_buf_irq_pref;
+		info->nand.write_buf = omap_write_buf_irq_pref;
+
 		break;
 
 	default:
@@ -1364,7 +1506,11 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
 out_release_mem_region:
 	if (info->dma)
 		dma_release_channel(info->dma);
-	release_mem_region(info->phys_base, NAND_IO_SIZE);
+	if (info->gpmc_irq_count > 0)
+		free_irq(info->gpmc_irq_count, info);
+	if (info->gpmc_irq_fifo > 0)
+		free_irq(info->gpmc_irq_fifo, info);
+	release_mem_region(info->phys_base, info->mem_size);
 out_free_info:
 	kfree(info);
 
@@ -1382,8 +1528,10 @@ static int omap_nand_remove(struct platform_device *pdev)
 	if (info->dma)
 		dma_release_channel(info->dma);
 
-	if (info->gpmc_irq)
-		free_irq(info->gpmc_irq, info);
+	if (info->gpmc_irq_count > 0)
+		free_irq(info->gpmc_irq_count, info);
+	if (info->gpmc_irq_fifo > 0)
+		free_irq(info->gpmc_irq_fifo, info);
 
 	/* Release NAND device, its internal structures and partitions */
 	nand_release(&info->mtd);
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index fc5a868c436..131b58a133f 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -22,7 +22,7 @@
 #include <asm/io.h>
 #include <asm/sizes.h>
 #include <mach/hardware.h>
-#include <plat/orion_nand.h>
+#include <linux/platform_data/mtd-orion_nand.h>
 
 static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 252aaefcacf..c45227173ef 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -22,9 +22,11 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <mach/dma.h>
-#include <plat/pxa3xx_nand.h>
+#include <linux/platform_data/mtd-nand-pxa3xx.h>
 
 #define	CHIP_DELAY_TIMEOUT	(2 * HZ/10)
 #define NAND_STOP_DELAY		(2 * HZ/50)
@@ -1032,7 +1034,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	struct pxa3xx_nand_platform_data *pdata;
 	struct pxa3xx_nand_info *info;
 	struct pxa3xx_nand_host *host;
-	struct nand_chip *chip;
+	struct nand_chip *chip = NULL;
 	struct mtd_info *mtd;
 	struct resource *r;
 	int ret, irq, cs;
@@ -1081,21 +1083,31 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	}
 	clk_enable(info->clk);
 
-	r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-	if (r == NULL) {
-		dev_err(&pdev->dev, "no resource defined for data DMA\n");
-		ret = -ENXIO;
-		goto fail_put_clk;
-	}
-	info->drcmr_dat = r->start;
+	/*
+	 * This is a dirty hack to make this driver work from devicetree
+	 * bindings. It can be removed once we have a prober DMA controller
+	 * framework for DT.
+	 */
+	if (pdev->dev.of_node && cpu_is_pxa3xx()) {
+		info->drcmr_dat = 97;
+		info->drcmr_cmd = 99;
+	} else {
+		r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+		if (r == NULL) {
+			dev_err(&pdev->dev, "no resource defined for data DMA\n");
+			ret = -ENXIO;
+			goto fail_put_clk;
+		}
+		info->drcmr_dat = r->start;
 
-	r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
-	if (r == NULL) {
-		dev_err(&pdev->dev, "no resource defined for command DMA\n");
-		ret = -ENXIO;
-		goto fail_put_clk;
+		r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+		if (r == NULL) {
+			dev_err(&pdev->dev, "no resource defined for command DMA\n");
+			ret = -ENXIO;
+			goto fail_put_clk;
+		}
+		info->drcmr_cmd = r->start;
 	}
-	info->drcmr_cmd = r->start;
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -1200,12 +1212,55 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id pxa3xx_nand_dt_ids[] = {
+	{ .compatible = "marvell,pxa3xx-nand" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, i2c_pxa_dt_ids);
+
+static int pxa3xx_nand_probe_dt(struct platform_device *pdev)
+{
+	struct pxa3xx_nand_platform_data *pdata;
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *of_id =
+			of_match_device(pxa3xx_nand_dt_ids, &pdev->dev);
+
+	if (!of_id)
+		return 0;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	if (of_get_property(np, "marvell,nand-enable-arbiter", NULL))
+		pdata->enable_arbiter = 1;
+	if (of_get_property(np, "marvell,nand-keep-config", NULL))
+		pdata->keep_config = 1;
+	of_property_read_u32(np, "num-cs", &pdata->num_cs);
+
+	pdev->dev.platform_data = pdata;
+
+	return 0;
+}
+#else
+static inline int pxa3xx_nand_probe_dt(struct platform_device *pdev)
+{
+	return 0;
+}
+#endif
+
 static int pxa3xx_nand_probe(struct platform_device *pdev)
 {
 	struct pxa3xx_nand_platform_data *pdata;
+	struct mtd_part_parser_data ppdata = {};
 	struct pxa3xx_nand_info *info;
 	int ret, cs, probe_success;
 
+	ret = pxa3xx_nand_probe_dt(pdev);
+	if (ret)
+		return ret;
+
 	pdata = pdev->dev.platform_data;
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data defined\n");
@@ -1229,8 +1284,9 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
 			continue;
 		}
 
+		ppdata.of_node = pdev->dev.of_node;
 		ret = mtd_device_parse_register(info->host[cs]->mtd, NULL,
-						NULL, pdata->parts[cs],
+						&ppdata, pdata->parts[cs],
 						pdata->nr_parts[cs]);
 		if (!ret)
 			probe_success = 1;
@@ -1306,6 +1362,7 @@ static int pxa3xx_nand_resume(struct platform_device *pdev)
 static struct platform_driver pxa3xx_nand_driver = {
 	.driver = {
 		.name	= "pxa3xx-nand",
+		.of_match_table = of_match_ptr(pxa3xx_nand_dt_ids),
 	},
 	.probe		= pxa3xx_nand_probe,
 	.remove		= pxa3xx_nand_remove,
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 91121f33f74..d8040619ad8 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -46,7 +46,7 @@
 #include <asm/io.h>
 
 #include <plat/regs-nand.h>
-#include <plat/nand.h>
+#include <linux/platform_data/mtd-nand-s3c2410.h>
 
 #ifdef CONFIG_MTD_NAND_S3C2410_HWECC
 static int hardware_ecc = 1;
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 398a8278384..1961be98517 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -39,22 +39,21 @@
 
 #include <asm/mach/flash.h>
 #include <plat/gpmc.h>
-#include <plat/onenand.h>
+#include <linux/platform_data/mtd-onenand-omap2.h>
 #include <asm/gpio.h>
 
 #include <plat/dma.h>
-
-#include <plat/board.h>
+#include <plat/cpu.h>
 
 #define DRIVER_NAME "omap2-onenand"
 
-#define ONENAND_IO_SIZE		SZ_128K
 #define ONENAND_BUFRAM_SIZE	(1024 * 5)
 
 struct omap2_onenand {
 	struct platform_device *pdev;
 	int gpmc_cs;
 	unsigned long phys_base;
+	unsigned int mem_size;
 	int gpio_irq;
 	struct mtd_info mtd;
 	struct onenand_chip onenand;
@@ -626,6 +625,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
 	struct omap2_onenand *c;
 	struct onenand_chip *this;
 	int r;
+	struct resource *res;
 
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL) {
@@ -647,20 +647,24 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
 		c->gpio_irq = 0;
 	}
 
-	r = gpmc_cs_request(c->gpmc_cs, ONENAND_IO_SIZE, &c->phys_base);
-	if (r < 0) {
-		dev_err(&pdev->dev, "Cannot request GPMC CS\n");
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		r = -EINVAL;
+		dev_err(&pdev->dev, "error getting memory resource\n");
 		goto err_kfree;
 	}
 
-	if (request_mem_region(c->phys_base, ONENAND_IO_SIZE,
+	c->phys_base = res->start;
+	c->mem_size = resource_size(res);
+
+	if (request_mem_region(c->phys_base, c->mem_size,
 			       pdev->dev.driver->name) == NULL) {
-		dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, "
-			"size: 0x%x\n",	c->phys_base, ONENAND_IO_SIZE);
+		dev_err(&pdev->dev, "Cannot reserve memory region at 0x%08lx, size: 0x%x\n",
+						c->phys_base, c->mem_size);
 		r = -EBUSY;
-		goto err_free_cs;
+		goto err_kfree;
 	}
-	c->onenand.base = ioremap(c->phys_base, ONENAND_IO_SIZE);
+	c->onenand.base = ioremap(c->phys_base, c->mem_size);
 	if (c->onenand.base == NULL) {
 		r = -ENOMEM;
 		goto err_release_mem_region;
@@ -776,9 +780,7 @@ err_release_gpio:
 err_iounmap:
 	iounmap(c->onenand.base);
 err_release_mem_region:
-	release_mem_region(c->phys_base, ONENAND_IO_SIZE);
-err_free_cs:
-	gpmc_cs_free(c->gpmc_cs);
+	release_mem_region(c->phys_base, c->mem_size);
 err_kfree:
 	kfree(c);
 
@@ -800,7 +802,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev)
 		gpio_free(c->gpio_irq);
 	}
 	iounmap(c->onenand.base);
-	release_mem_region(c->phys_base, ONENAND_IO_SIZE);
+	release_mem_region(c->phys_base, c->mem_size);
 	gpmc_cs_free(c->gpmc_cs);
 	kfree(c);
 
diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
index ea4b95b5451..271a842f8c3 100644
--- a/drivers/mtd/ubi/Kconfig
+++ b/drivers/mtd/ubi/Kconfig
@@ -27,20 +27,34 @@ config MTD_UBI_WL_THRESHOLD
 	  life-cycle less than 10000, the threshold should be lessened (e.g.,
 	  to 128 or 256, although it does not have to be power of 2).
 
-config MTD_UBI_BEB_RESERVE
-	int "Percentage of reserved eraseblocks for bad eraseblocks handling"
-	default 2
-	range 0 25
+config MTD_UBI_BEB_LIMIT
+	int "Maximum expected bad eraseblock count per 1024 eraseblocks"
+	default 20
+	range 0 768
 	help
-	  If the MTD device admits of bad eraseblocks (e.g. NAND flash), UBI
-	  reserves some amount of physical eraseblocks to handle new bad
-	  eraseblocks. For example, if a flash physical eraseblock becomes bad,
-	  UBI uses these reserved physical eraseblocks to relocate the bad one.
-	  This option specifies how many physical eraseblocks will be reserved
-	  for bad eraseblock handling (percents of total number of good flash
-	  eraseblocks). If the underlying flash does not admit of bad
-	  eraseblocks (e.g. NOR flash), this value is ignored and nothing is
-	  reserved. Leave the default value if unsure.
+	  This option specifies the maximum bad physical eraseblocks UBI
+	  expects on the MTD device (per 1024 eraseblocks). If the underlying
+	  flash does not admit of bad eraseblocks (e.g. NOR flash), this value
+	  is ignored.
+
+	  NAND datasheets often specify the minimum and maximum NVM (Number of
+	  Valid Blocks) for the flashes' endurance lifetime. The maximum
+	  expected bad eraseblocks per 1024 eraseblocks then can be calculated
+	  as "1024 * (1 - MinNVB / MaxNVB)", which gives 20 for most NANDs
+	  (MaxNVB is basically the total count of eraseblocks on the chip).
+
+	  To put it differently, if this value is 20, UBI will try to reserve
+	  about 1.9% of physical eraseblocks for bad blocks handling. And that
+	  will be 1.9% of eraseblocks on the entire NAND chip, not just the MTD
+	  partition UBI attaches. This means that if you have, say, a NAND
+	  flash chip admits maximum 40 bad eraseblocks, and it is split on two
+	  MTD partitions of the same size, UBI will reserve 40 eraseblocks when
+	  attaching a partition.
+
+	  This option can be overridden by the "mtd=" UBI module parameter or
+	  by the "attach" ioctl.
+
+	  Leave the default value if unsure.
 
 config MTD_UBI_GLUEBI
 	tristate "MTD devices emulation driver (gluebi)"
diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index bd27cbbb406..f7adf53e4f4 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -79,7 +79,7 @@
  *     NAND), it is probably a PEB which was being erased when power cut
  *     happened, so this is corruption type 1. However, this is just a guess,
  *     which might be wrong.
- *   o Otherwise this it corruption type 2.
+ *   o Otherwise this is corruption type 2.
  */
 
 #include <linux/err.h>
@@ -378,8 +378,8 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_ainf_peb *aeb,
 			if (err == UBI_IO_BITFLIPS)
 				bitflips = 1;
 			else {
-				ubi_err("VID of PEB %d header is bad, but it "
-					"was OK earlier, err %d", pnum, err);
+				ubi_err("VID of PEB %d header is bad, but it was OK earlier, err %d",
+					pnum, err);
 				if (err > 0)
 					err = -EIO;
 
@@ -790,12 +790,12 @@ static int check_corruption(struct ubi_device *ubi, struct ubi_vid_hdr *vid_hdr,
 	if (ubi_check_pattern(ubi->peb_buf, 0xFF, ubi->leb_size))
 		goto out_unlock;
 
-	ubi_err("PEB %d contains corrupted VID header, and the data does not "
-		"contain all 0xFF, this may be a non-UBI PEB or a severe VID "
-		"header corruption which requires manual inspection", pnum);
+	ubi_err("PEB %d contains corrupted VID header, and the data does not contain all 0xFF",
+		pnum);
+	ubi_err("this may be a non-UBI PEB or a severe VID header corruption which requires manual inspection");
 	ubi_dump_vid_hdr(vid_hdr);
-	dbg_msg("hexdump of PEB %d offset %d, length %d",
-		pnum, ubi->leb_start, ubi->leb_size);
+	pr_err("hexdump of PEB %d offset %d, length %d",
+	       pnum, ubi->leb_start, ubi->leb_size);
 	ubi_dbg_print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
 			       ubi->peb_buf, ubi->leb_size, 1);
 	err = 1;
@@ -907,8 +907,8 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
 			ubi->image_seq = image_seq;
 		if (ubi->image_seq && image_seq &&
 		    ubi->image_seq != image_seq) {
-			ubi_err("bad image sequence number %d in PEB %d, "
-				"expected %d", image_seq, pnum, ubi->image_seq);
+			ubi_err("bad image sequence number %d in PEB %d, expected %d",
+				image_seq, pnum, ubi->image_seq);
 			ubi_dump_ec_hdr(ech);
 			return -EINVAL;
 		}
@@ -975,7 +975,7 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
 			return err;
 		goto adjust_mean_ec;
 	case UBI_IO_FF:
-		if (ec_err)
+		if (ec_err || bitflips)
 			err = add_to_list(ai, pnum, UBI_UNKNOWN,
 					  UBI_UNKNOWN, ec, 1, &ai->erase);
 		else
@@ -997,8 +997,8 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
 		/* Unsupported internal volume */
 		switch (vidh->compat) {
 		case UBI_COMPAT_DELETE:
-			ubi_msg("\"delete\" compatible internal volume %d:%d"
-				" found, will remove it", vol_id, lnum);
+			ubi_msg("\"delete\" compatible internal volume %d:%d found, will remove it",
+				vol_id, lnum);
 			err = add_to_list(ai, pnum, vol_id, lnum,
 					  ec, 1, &ai->erase);
 			if (err)
@@ -1006,15 +1006,14 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
 			return 0;
 
 		case UBI_COMPAT_RO:
-			ubi_msg("read-only compatible internal volume %d:%d"
-				" found, switch to read-only mode",
+			ubi_msg("read-only compatible internal volume %d:%d found, switch to read-only mode",
 				vol_id, lnum);
 			ubi->ro_mode = 1;
 			break;
 
 		case UBI_COMPAT_PRESERVE:
-			ubi_msg("\"preserve\" compatible internal volume %d:%d"
-				" found", vol_id, lnum);
+			ubi_msg("\"preserve\" compatible internal volume %d:%d found",
+				vol_id, lnum);
 			err = add_to_list(ai, pnum, vol_id, lnum,
 					  ec, 0, &ai->alien);
 			if (err)
@@ -1075,10 +1074,10 @@ static int late_analysis(struct ubi_device *ubi, struct ubi_attach_info *ai)
 	if (ai->corr_peb_count) {
 		ubi_err("%d PEBs are corrupted and preserved",
 			ai->corr_peb_count);
-		printk(KERN_ERR "Corrupted PEBs are:");
+		pr_err("Corrupted PEBs are:");
 		list_for_each_entry(aeb, &ai->corr, u.list)
-			printk(KERN_CONT " %d", aeb->pnum);
-		printk(KERN_CONT "\n");
+			pr_cont(" %d", aeb->pnum);
+		pr_cont("\n");
 
 		/*
 		 * If too many PEBs are corrupted, we refuse attaching,
@@ -1112,8 +1111,7 @@ static int late_analysis(struct ubi_device *ubi, struct ubi_attach_info *ai)
 			get_random_bytes(&ubi->image_seq,
 					 sizeof(ubi->image_seq));
 		} else {
-			ubi_err("MTD device is not UBI-formatted and possibly "
-				"contains non-UBI data - refusing it");
+			ubi_err("MTD device is not UBI-formatted and possibly contains non-UBI data - refusing it");
 			return -EINVAL;
 		}
 
@@ -1172,7 +1170,7 @@ static struct ubi_attach_info *scan_all(struct ubi_device *ubi)
 			goto out_vidh;
 	}
 
-	dbg_msg("scanning is finished");
+	ubi_msg("scanning is finished");
 
 	/* Calculate mean erase counter */
 	if (ai->ec_count)
@@ -1244,7 +1242,7 @@ int ubi_attach(struct ubi_device *ubi)
 	ubi->corr_peb_count = ai->corr_peb_count;
 	ubi->max_ec = ai->max_ec;
 	ubi->mean_ec = ai->mean_ec;
-	ubi_msg("max. sequence number:       %llu", ai->max_sqnum);
+	dbg_gen("max. sequence number:       %llu", ai->max_sqnum);
 
 	err = ubi_read_volume_table(ubi, ai);
 	if (err)
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 2c5ed5ca9c3..34977039850 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -36,6 +36,7 @@
 #include <linux/namei.h>
 #include <linux/stat.h>
 #include <linux/miscdevice.h>
+#include <linux/mtd/partitions.h>
 #include <linux/log2.h>
 #include <linux/kthread.h>
 #include <linux/kernel.h>
@@ -45,6 +46,12 @@
 /* Maximum length of the 'mtd=' parameter */
 #define MTD_PARAM_LEN_MAX 64
 
+/* Maximum number of comma-separated items in the 'mtd=' parameter */
+#define MTD_PARAM_MAX_COUNT 3
+
+/* Maximum value for the number of bad PEBs per 1024 PEBs */
+#define MAX_MTD_UBI_BEB_LIMIT 768
+
 #ifdef CONFIG_MTD_UBI_MODULE
 #define ubi_is_module() 1
 #else
@@ -56,10 +63,12 @@
  * @name: MTD character device node path, MTD device name, or MTD device number
  *        string
  * @vid_hdr_offs: VID header offset
+ * @max_beb_per1024: maximum expected number of bad PEBs per 1024 PEBs
  */
 struct mtd_dev_param {
 	char name[MTD_PARAM_LEN_MAX];
 	int vid_hdr_offs;
+	int max_beb_per1024;
 };
 
 /* Numbers of elements set in the @mtd_dev_param array */
@@ -564,9 +573,38 @@ void ubi_free_internal_volumes(struct ubi_device *ubi)
 	}
 }
 
+static int get_bad_peb_limit(const struct ubi_device *ubi, int max_beb_per1024)
+{
+	int limit, device_pebs;
+	uint64_t device_size;
+
+	if (!max_beb_per1024)
+		return 0;
+
+	/*
+	 * Here we are using size of the entire flash chip and
+	 * not just the MTD partition size because the maximum
+	 * number of bad eraseblocks is a percentage of the
+	 * whole device and bad eraseblocks are not fairly
+	 * distributed over the flash chip. So the worst case
+	 * is that all the bad eraseblocks of the chip are in
+	 * the MTD partition we are attaching (ubi->mtd).
+	 */
+	device_size = mtd_get_device_size(ubi->mtd);
+	device_pebs = mtd_div_by_eb(device_size, ubi->mtd);
+	limit = mult_frac(device_pebs, max_beb_per1024, 1024);
+
+	/* Round it up */
+	if (mult_frac(limit, 1024, max_beb_per1024) < device_pebs)
+		limit += 1;
+
+	return limit;
+}
+
 /**
  * io_init - initialize I/O sub-system for a given UBI device.
  * @ubi: UBI device description object
+ * @max_beb_per1024: maximum expected number of bad PEB per 1024 PEBs
  *
  * If @ubi->vid_hdr_offset or @ubi->leb_start is zero, default offsets are
  * assumed:
@@ -579,8 +617,11 @@ void ubi_free_internal_volumes(struct ubi_device *ubi)
  * This function returns zero in case of success and a negative error code in
  * case of failure.
  */
-static int io_init(struct ubi_device *ubi)
+static int io_init(struct ubi_device *ubi, int max_beb_per1024)
 {
+	dbg_gen("sizeof(struct ubi_ainf_peb) %zu", sizeof(struct ubi_ainf_peb));
+	dbg_gen("sizeof(struct ubi_wl_entry) %zu", sizeof(struct ubi_wl_entry));
+
 	if (ubi->mtd->numeraseregions != 0) {
 		/*
 		 * Some flashes have several erase regions. Different regions
@@ -607,8 +648,10 @@ static int io_init(struct ubi_device *ubi)
 	ubi->peb_count  = mtd_div_by_eb(ubi->mtd->size, ubi->mtd);
 	ubi->flash_size = ubi->mtd->size;
 
-	if (mtd_can_have_bb(ubi->mtd))
+	if (mtd_can_have_bb(ubi->mtd)) {
 		ubi->bad_allowed = 1;
+		ubi->bad_peb_limit = get_bad_peb_limit(ubi, max_beb_per1024);
+	}
 
 	if (ubi->mtd->type == MTD_NORFLASH) {
 		ubi_assert(ubi->mtd->writesize == 1);
@@ -650,11 +693,11 @@ static int io_init(struct ubi_device *ubi)
 	ubi->ec_hdr_alsize = ALIGN(UBI_EC_HDR_SIZE, ubi->hdrs_min_io_size);
 	ubi->vid_hdr_alsize = ALIGN(UBI_VID_HDR_SIZE, ubi->hdrs_min_io_size);
 
-	dbg_msg("min_io_size      %d", ubi->min_io_size);
-	dbg_msg("max_write_size   %d", ubi->max_write_size);
-	dbg_msg("hdrs_min_io_size %d", ubi->hdrs_min_io_size);
-	dbg_msg("ec_hdr_alsize    %d", ubi->ec_hdr_alsize);
-	dbg_msg("vid_hdr_alsize   %d", ubi->vid_hdr_alsize);
+	dbg_gen("min_io_size      %d", ubi->min_io_size);
+	dbg_gen("max_write_size   %d", ubi->max_write_size);
+	dbg_gen("hdrs_min_io_size %d", ubi->hdrs_min_io_size);
+	dbg_gen("ec_hdr_alsize    %d", ubi->ec_hdr_alsize);
+	dbg_gen("vid_hdr_alsize   %d", ubi->vid_hdr_alsize);
 
 	if (ubi->vid_hdr_offset == 0)
 		/* Default offset */
@@ -671,10 +714,10 @@ static int io_init(struct ubi_device *ubi)
 	ubi->leb_start = ubi->vid_hdr_offset + UBI_VID_HDR_SIZE;
 	ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size);
 
-	dbg_msg("vid_hdr_offset   %d", ubi->vid_hdr_offset);
-	dbg_msg("vid_hdr_aloffset %d", ubi->vid_hdr_aloffset);
-	dbg_msg("vid_hdr_shift    %d", ubi->vid_hdr_shift);
-	dbg_msg("leb_start        %d", ubi->leb_start);
+	dbg_gen("vid_hdr_offset   %d", ubi->vid_hdr_offset);
+	dbg_gen("vid_hdr_aloffset %d", ubi->vid_hdr_aloffset);
+	dbg_gen("vid_hdr_shift    %d", ubi->vid_hdr_shift);
+	dbg_gen("leb_start        %d", ubi->leb_start);
 
 	/* The shift must be aligned to 32-bit boundary */
 	if (ubi->vid_hdr_shift % 4) {
@@ -700,7 +743,7 @@ static int io_init(struct ubi_device *ubi)
 	ubi->max_erroneous = ubi->peb_count / 10;
 	if (ubi->max_erroneous < 16)
 		ubi->max_erroneous = 16;
-	dbg_msg("max_erroneous    %d", ubi->max_erroneous);
+	dbg_gen("max_erroneous    %d", ubi->max_erroneous);
 
 	/*
 	 * It may happen that EC and VID headers are situated in one minimal
@@ -708,30 +751,18 @@ static int io_init(struct ubi_device *ubi)
 	 * read-only mode.
 	 */
 	if (ubi->vid_hdr_offset + UBI_VID_HDR_SIZE <= ubi->hdrs_min_io_size) {
-		ubi_warn("EC and VID headers are in the same minimal I/O unit, "
-			 "switch to read-only mode");
+		ubi_warn("EC and VID headers are in the same minimal I/O unit, switch to read-only mode");
 		ubi->ro_mode = 1;
 	}
 
 	ubi->leb_size = ubi->peb_size - ubi->leb_start;
 
 	if (!(ubi->mtd->flags & MTD_WRITEABLE)) {
-		ubi_msg("MTD device %d is write-protected, attach in "
-			"read-only mode", ubi->mtd->index);
+		ubi_msg("MTD device %d is write-protected, attach in read-only mode",
+			ubi->mtd->index);
 		ubi->ro_mode = 1;
 	}
 
-	ubi_msg("physical eraseblock size:   %d bytes (%d KiB)",
-		ubi->peb_size, ubi->peb_size >> 10);
-	ubi_msg("logical eraseblock size:    %d bytes", ubi->leb_size);
-	ubi_msg("smallest flash I/O unit:    %d", ubi->min_io_size);
-	if (ubi->hdrs_min_io_size != ubi->min_io_size)
-		ubi_msg("sub-page size:              %d",
-			ubi->hdrs_min_io_size);
-	ubi_msg("VID header offset:          %d (aligned %d)",
-		ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
-	ubi_msg("data offset:                %d", ubi->leb_start);
-
 	/*
 	 * Note, ideally, we have to initialize @ubi->bad_peb_count here. But
 	 * unfortunately, MTD does not provide this information. We should loop
@@ -759,6 +790,11 @@ static int autoresize(struct ubi_device *ubi, int vol_id)
 	struct ubi_volume *vol = ubi->volumes[vol_id];
 	int err, old_reserved_pebs = vol->reserved_pebs;
 
+	if (ubi->ro_mode) {
+		ubi_warn("skip auto-resize because of R/O mode");
+		return 0;
+	}
+
 	/*
 	 * Clear the auto-resize flag in the volume in-memory copy of the
 	 * volume table, and 'ubi_resize_volume()' will propagate this change
@@ -800,6 +836,7 @@ static int autoresize(struct ubi_device *ubi, int vol_id)
  * @mtd: MTD device description object
  * @ubi_num: number to assign to the new UBI device
  * @vid_hdr_offset: VID header offset
+ * @max_beb_per1024: maximum expected number of bad PEB per 1024 PEBs
  *
  * This function attaches MTD device @mtd_dev to UBI and assign @ubi_num number
  * to the newly created UBI device, unless @ubi_num is %UBI_DEV_NUM_AUTO, in
@@ -810,11 +847,18 @@ static int autoresize(struct ubi_device *ubi, int vol_id)
  * Note, the invocations of this function has to be serialized by the
  * @ubi_devices_mutex.
  */
-int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
+int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
+		       int vid_hdr_offset, int max_beb_per1024)
 {
 	struct ubi_device *ubi;
 	int i, err, ref = 0;
 
+	if (max_beb_per1024 < 0 || max_beb_per1024 > MAX_MTD_UBI_BEB_LIMIT)
+		return -EINVAL;
+
+	if (!max_beb_per1024)
+		max_beb_per1024 = CONFIG_MTD_UBI_BEB_LIMIT;
+
 	/*
 	 * Check if we already have the same MTD device attached.
 	 *
@@ -839,8 +883,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
 	 * no sense to attach emulated MTD devices, so we prohibit this.
 	 */
 	if (mtd->type == MTD_UBIVOLUME) {
-		ubi_err("refuse attaching mtd%d - it is already emulated on "
-			"top of UBI", mtd->index);
+		ubi_err("refuse attaching mtd%d - it is already emulated on top of UBI",
+			mtd->index);
 		return -EINVAL;
 	}
 
@@ -880,10 +924,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
 	spin_lock_init(&ubi->volumes_lock);
 
 	ubi_msg("attaching mtd%d to ubi%d", mtd->index, ubi_num);
-	dbg_msg("sizeof(struct ubi_ainf_peb) %zu", sizeof(struct ubi_ainf_peb));
-	dbg_msg("sizeof(struct ubi_wl_entry) %zu", sizeof(struct ubi_wl_entry));
 
-	err = io_init(ubi);
+	err = io_init(ubi, max_beb_per1024);
 	if (err)
 		goto out_free;
 
@@ -924,23 +966,24 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
 		goto out_debugfs;
 	}
 
-	ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num);
-	ubi_msg("MTD device name:            \"%s\"", mtd->name);
-	ubi_msg("MTD device size:            %llu MiB", ubi->flash_size >> 20);
-	ubi_msg("number of good PEBs:        %d", ubi->good_peb_count);
-	ubi_msg("number of bad PEBs:         %d", ubi->bad_peb_count);
-	ubi_msg("number of corrupted PEBs:   %d", ubi->corr_peb_count);
-	ubi_msg("max. allowed volumes:       %d", ubi->vtbl_slots);
-	ubi_msg("wear-leveling threshold:    %d", CONFIG_MTD_UBI_WL_THRESHOLD);
-	ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
-	ubi_msg("number of user volumes:     %d",
-		ubi->vol_count - UBI_INT_VOL_COUNT);
-	ubi_msg("available PEBs:             %d", ubi->avail_pebs);
-	ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
-	ubi_msg("number of PEBs reserved for bad PEB handling: %d",
-		ubi->beb_rsvd_pebs);
-	ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
-	ubi_msg("image sequence number:  %d", ubi->image_seq);
+	ubi_msg("attached mtd%d (name \"%s\", size %llu MiB) to ubi%d",
+		mtd->index, mtd->name, ubi->flash_size >> 20, ubi_num);
+	ubi_msg("PEB size: %d bytes (%d KiB), LEB size: %d bytes",
+		ubi->peb_size, ubi->peb_size >> 10, ubi->leb_size);
+	ubi_msg("min./max. I/O unit sizes: %d/%d, sub-page size %d",
+		ubi->min_io_size, ubi->max_write_size, ubi->hdrs_min_io_size);
+	ubi_msg("VID header offset: %d (aligned %d), data offset: %d",
+		ubi->vid_hdr_offset, ubi->vid_hdr_aloffset, ubi->leb_start);
+	ubi_msg("good PEBs: %d, bad PEBs: %d, corrupted PEBs: %d",
+		ubi->good_peb_count, ubi->bad_peb_count, ubi->corr_peb_count);
+	ubi_msg("user volume: %d, internal volumes: %d, max. volumes count: %d",
+		ubi->vol_count - UBI_INT_VOL_COUNT, UBI_INT_VOL_COUNT,
+		ubi->vtbl_slots);
+	ubi_msg("max/mean erase counter: %d/%d, WL threshold: %d, image sequence number: %u",
+		ubi->max_ec, ubi->mean_ec, CONFIG_MTD_UBI_WL_THRESHOLD,
+		ubi->image_seq);
+	ubi_msg("available PEBs: %d, total reserved PEBs: %d, PEBs reserved for bad PEB handling: %d",
+		ubi->avail_pebs, ubi->rsvd_pebs, ubi->beb_rsvd_pebs);
 
 	/*
 	 * The below lock makes sure we do not race with 'ubi_thread()' which
@@ -1017,7 +1060,7 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway)
 
 	ubi_assert(ubi_num == ubi->ubi_num);
 	ubi_notify_all(ubi, UBI_VOLUME_REMOVED, NULL);
-	dbg_msg("detaching mtd%d from ubi%d", ubi->mtd->index, ubi_num);
+	ubi_msg("detaching mtd%d from ubi%d", ubi->mtd->index, ubi_num);
 
 	/*
 	 * Before freeing anything, we have to stop the background thread to
@@ -1172,7 +1215,7 @@ static int __init ubi_init(void)
 
 		mutex_lock(&ubi_devices_mutex);
 		err = ubi_attach_mtd_dev(mtd, UBI_DEV_NUM_AUTO,
-					 p->vid_hdr_offs);
+					 p->vid_hdr_offs, p->max_beb_per1024);
 		mutex_unlock(&ubi_devices_mutex);
 		if (err < 0) {
 			ubi_err("cannot attach mtd%d", mtd->index);
@@ -1218,7 +1261,7 @@ out:
 	ubi_err("UBI error: cannot initialize UBI, error %d", err);
 	return err;
 }
-module_init(ubi_init);
+late_initcall(ubi_init);
 
 static void __exit ubi_exit(void)
 {
@@ -1252,8 +1295,7 @@ static int __init bytes_str_to_int(const char *str)
 
 	result = simple_strtoul(str, &endp, 0);
 	if (str == endp || result >= INT_MAX) {
-		printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n",
-		       str);
+		ubi_err("UBI error: incorrect bytes count: \"%s\"\n", str);
 		return -EINVAL;
 	}
 
@@ -1269,8 +1311,7 @@ static int __init bytes_str_to_int(const char *str)
 	case '\0':
 		break;
 	default:
-		printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n",
-		       str);
+		ubi_err("UBI error: incorrect bytes count: \"%s\"\n", str);
 		return -EINVAL;
 	}
 
@@ -1291,27 +1332,26 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 	struct mtd_dev_param *p;
 	char buf[MTD_PARAM_LEN_MAX];
 	char *pbuf = &buf[0];
-	char *tokens[2] = {NULL, NULL};
+	char *tokens[MTD_PARAM_MAX_COUNT];
 
 	if (!val)
 		return -EINVAL;
 
 	if (mtd_devs == UBI_MAX_DEVICES) {
-		printk(KERN_ERR "UBI error: too many parameters, max. is %d\n",
-		       UBI_MAX_DEVICES);
+		ubi_err("UBI error: too many parameters, max. is %d\n",
+			UBI_MAX_DEVICES);
 		return -EINVAL;
 	}
 
 	len = strnlen(val, MTD_PARAM_LEN_MAX);
 	if (len == MTD_PARAM_LEN_MAX) {
-		printk(KERN_ERR "UBI error: parameter \"%s\" is too long, "
-		       "max. is %d\n", val, MTD_PARAM_LEN_MAX);
+		ubi_err("UBI error: parameter \"%s\" is too long, max. is %d\n",
+			val, MTD_PARAM_LEN_MAX);
 		return -EINVAL;
 	}
 
 	if (len == 0) {
-		printk(KERN_WARNING "UBI warning: empty 'mtd=' parameter - "
-		       "ignored\n");
+		pr_warn("UBI warning: empty 'mtd=' parameter - ignored\n");
 		return 0;
 	}
 
@@ -1321,12 +1361,11 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 	if (buf[len - 1] == '\n')
 		buf[len - 1] = '\0';
 
-	for (i = 0; i < 2; i++)
+	for (i = 0; i < MTD_PARAM_MAX_COUNT; i++)
 		tokens[i] = strsep(&pbuf, ",");
 
 	if (pbuf) {
-		printk(KERN_ERR "UBI error: too many arguments at \"%s\"\n",
-		       val);
+		ubi_err("UBI error: too many arguments at \"%s\"\n", val);
 		return -EINVAL;
 	}
 
@@ -1339,23 +1378,32 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 	if (p->vid_hdr_offs < 0)
 		return p->vid_hdr_offs;
 
+	if (tokens[2]) {
+		int err = kstrtoint(tokens[2], 10, &p->max_beb_per1024);
+
+		if (err) {
+			ubi_err("UBI error: bad value for max_beb_per1024 parameter: %s",
+				tokens[2]);
+			return -EINVAL;
+		}
+	}
+
 	mtd_devs += 1;
 	return 0;
 }
 
 module_param_call(mtd, ubi_mtd_param_parse, NULL, NULL, 000);
-MODULE_PARM_DESC(mtd, "MTD devices to attach. Parameter format: "
-		      "mtd=<name|num|path>[,<vid_hdr_offs>].\n"
+MODULE_PARM_DESC(mtd, "MTD devices to attach. Parameter format: mtd=<name|num|path>[,<vid_hdr_offs>[,max_beb_per1024]].\n"
 		      "Multiple \"mtd\" parameters may be specified.\n"
-		      "MTD devices may be specified by their number, name, or "
-		      "path to the MTD character device node.\n"
-		      "Optional \"vid_hdr_offs\" parameter specifies UBI VID "
-		      "header position to be used by UBI.\n"
-		      "Example 1: mtd=/dev/mtd0 - attach MTD device "
-		      "/dev/mtd0.\n"
-		      "Example 2: mtd=content,1984 mtd=4 - attach MTD device "
-		      "with name \"content\" using VID header offset 1984, and "
-		      "MTD device number 4 with default VID header offset.");
+		      "MTD devices may be specified by their number, name, or path to the MTD character device node.\n"
+		      "Optional \"vid_hdr_offs\" parameter specifies UBI VID header position to be used by UBI. (default value if 0)\n"
+		      "Optional \"max_beb_per1024\" parameter specifies the maximum expected bad eraseblock per 1024 eraseblocks. (default value ("
+		      __stringify(CONFIG_MTD_UBI_BEB_LIMIT) ") if 0)\n"
+		      "\n"
+		      "Example 1: mtd=/dev/mtd0 - attach MTD device /dev/mtd0.\n"
+		      "Example 2: mtd=content,1984 mtd=4 - attach MTD device with name \"content\" using VID header offset 1984, and MTD device number 4 with default VID header offset.\n"
+		      "Example 3: mtd=/dev/mtd1,0,25 - attach MTD device /dev/mtd1 using default VID header offset and reserve 25*nand_size_in_blocks/1024 erase blocks for bad block handling.\n"
+		      "\t(e.g. if the NAND *chipset* has 4096 PEB, 100 will be reserved for this UBI device).");
 
 MODULE_VERSION(__stringify(UBI_VERSION));
 MODULE_DESCRIPTION("UBI - Unsorted Block Images");
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index fb556787818..dfcc65b33e9 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -140,9 +140,9 @@ static int vol_cdev_release(struct inode *inode, struct file *file)
 		vol->updating = 0;
 		vfree(vol->upd_buf);
 	} else if (vol->changing_leb) {
-		dbg_gen("only %lld of %lld bytes received for atomic LEB change"
-			" for volume %d:%d, cancel", vol->upd_received,
-			vol->upd_bytes, vol->ubi->ubi_num, vol->vol_id);
+		dbg_gen("only %lld of %lld bytes received for atomic LEB change for volume %d:%d, cancel",
+			vol->upd_received, vol->upd_bytes, vol->ubi->ubi_num,
+			vol->vol_id);
 		vol->changing_leb = 0;
 		vfree(vol->upd_buf);
 	}
@@ -189,7 +189,8 @@ static loff_t vol_cdev_llseek(struct file *file, loff_t offset, int origin)
 	return new_offset;
 }
 
-static int vol_cdev_fsync(struct file *file, loff_t start, loff_t end, int datasync)
+static int vol_cdev_fsync(struct file *file, loff_t start, loff_t end,
+			  int datasync)
 {
 	struct ubi_volume_desc *desc = file->private_data;
 	struct ubi_device *ubi = desc->vol->ubi;
@@ -753,7 +754,7 @@ static int rename_volumes(struct ubi_device *ubi,
 		re->new_name_len = name_len;
 		memcpy(re->new_name, name, name_len);
 		list_add_tail(&re->list, &rename_list);
-		dbg_msg("will rename volume %d from \"%s\" to \"%s\"",
+		dbg_gen("will rename volume %d from \"%s\" to \"%s\"",
 			vol_id, re->desc->vol->name, name);
 	}
 
@@ -811,7 +812,7 @@ static int rename_volumes(struct ubi_device *ubi,
 		re1->remove = 1;
 		re1->desc = desc;
 		list_add(&re1->list, &rename_list);
-		dbg_msg("will remove volume %d, name \"%s\"",
+		dbg_gen("will remove volume %d, name \"%s\"",
 			re1->desc->vol->vol_id, re1->desc->vol->name);
 	}
 
@@ -942,7 +943,7 @@ static long ubi_cdev_ioctl(struct file *file, unsigned int cmd,
 	{
 		struct ubi_rnvol_req *req;
 
-		dbg_msg("re-name volumes");
+		dbg_gen("re-name volumes");
 		req = kmalloc(sizeof(struct ubi_rnvol_req), GFP_KERNEL);
 		if (!req) {
 			err = -ENOMEM;
@@ -1010,7 +1011,8 @@ static long ctrl_cdev_ioctl(struct file *file, unsigned int cmd,
 		 * 'ubi_attach_mtd_dev()'.
 		 */
 		mutex_lock(&ubi_devices_mutex);
-		err = ubi_attach_mtd_dev(mtd, req.ubi_num, req.vid_hdr_offset);
+		err = ubi_attach_mtd_dev(mtd, req.ubi_num, req.vid_hdr_offset,
+					 req.max_beb_per1024);
 		mutex_unlock(&ubi_devices_mutex);
 		if (err < 0)
 			put_mtd_device(mtd);
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index 7c138030521..26908a59506 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -43,8 +43,8 @@ void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len)
 		return;
 	err = mtd_read(ubi->mtd, addr, len, &read, buf);
 	if (err && err != -EUCLEAN) {
-		ubi_err("error %d while reading %d bytes from PEB %d:%d, "
-			"read %zd bytes", err, len, pnum, offset, read);
+		ubi_err("error %d while reading %d bytes from PEB %d:%d, read %zd bytes",
+			err, len, pnum, offset, read);
 		goto out;
 	}
 
@@ -62,21 +62,15 @@ out:
  */
 void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
 {
-	printk(KERN_DEBUG "Erase counter header dump:\n");
-	printk(KERN_DEBUG "\tmagic          %#08x\n",
-	       be32_to_cpu(ec_hdr->magic));
-	printk(KERN_DEBUG "\tversion        %d\n", (int)ec_hdr->version);
-	printk(KERN_DEBUG "\tec             %llu\n",
-	       (long long)be64_to_cpu(ec_hdr->ec));
-	printk(KERN_DEBUG "\tvid_hdr_offset %d\n",
-	       be32_to_cpu(ec_hdr->vid_hdr_offset));
-	printk(KERN_DEBUG "\tdata_offset    %d\n",
-	       be32_to_cpu(ec_hdr->data_offset));
-	printk(KERN_DEBUG "\timage_seq      %d\n",
-	       be32_to_cpu(ec_hdr->image_seq));
-	printk(KERN_DEBUG "\thdr_crc        %#08x\n",
-	       be32_to_cpu(ec_hdr->hdr_crc));
-	printk(KERN_DEBUG "erase counter header hexdump:\n");
+	pr_err("Erase counter header dump:\n");
+	pr_err("\tmagic          %#08x\n", be32_to_cpu(ec_hdr->magic));
+	pr_err("\tversion        %d\n", (int)ec_hdr->version);
+	pr_err("\tec             %llu\n", (long long)be64_to_cpu(ec_hdr->ec));
+	pr_err("\tvid_hdr_offset %d\n", be32_to_cpu(ec_hdr->vid_hdr_offset));
+	pr_err("\tdata_offset    %d\n", be32_to_cpu(ec_hdr->data_offset));
+	pr_err("\timage_seq      %d\n", be32_to_cpu(ec_hdr->image_seq));
+	pr_err("\thdr_crc        %#08x\n", be32_to_cpu(ec_hdr->hdr_crc));
+	pr_err("erase counter header hexdump:\n");
 	print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
 		       ec_hdr, UBI_EC_HDR_SIZE, 1);
 }
@@ -87,21 +81,21 @@ void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
  */
 void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
 {
-	printk(KERN_DEBUG "Volume identifier header dump:\n");
-	printk(KERN_DEBUG "\tmagic     %08x\n", be32_to_cpu(vid_hdr->magic));
-	printk(KERN_DEBUG "\tversion   %d\n",  (int)vid_hdr->version);
-	printk(KERN_DEBUG "\tvol_type  %d\n",  (int)vid_hdr->vol_type);
-	printk(KERN_DEBUG "\tcopy_flag %d\n",  (int)vid_hdr->copy_flag);
-	printk(KERN_DEBUG "\tcompat    %d\n",  (int)vid_hdr->compat);
-	printk(KERN_DEBUG "\tvol_id    %d\n",  be32_to_cpu(vid_hdr->vol_id));
-	printk(KERN_DEBUG "\tlnum      %d\n",  be32_to_cpu(vid_hdr->lnum));
-	printk(KERN_DEBUG "\tdata_size %d\n",  be32_to_cpu(vid_hdr->data_size));
-	printk(KERN_DEBUG "\tused_ebs  %d\n",  be32_to_cpu(vid_hdr->used_ebs));
-	printk(KERN_DEBUG "\tdata_pad  %d\n",  be32_to_cpu(vid_hdr->data_pad));
-	printk(KERN_DEBUG "\tsqnum     %llu\n",
+	pr_err("Volume identifier header dump:\n");
+	pr_err("\tmagic     %08x\n", be32_to_cpu(vid_hdr->magic));
+	pr_err("\tversion   %d\n",  (int)vid_hdr->version);
+	pr_err("\tvol_type  %d\n",  (int)vid_hdr->vol_type);
+	pr_err("\tcopy_flag %d\n",  (int)vid_hdr->copy_flag);
+	pr_err("\tcompat    %d\n",  (int)vid_hdr->compat);
+	pr_err("\tvol_id    %d\n",  be32_to_cpu(vid_hdr->vol_id));
+	pr_err("\tlnum      %d\n",  be32_to_cpu(vid_hdr->lnum));
+	pr_err("\tdata_size %d\n",  be32_to_cpu(vid_hdr->data_size));
+	pr_err("\tused_ebs  %d\n",  be32_to_cpu(vid_hdr->used_ebs));
+	pr_err("\tdata_pad  %d\n",  be32_to_cpu(vid_hdr->data_pad));
+	pr_err("\tsqnum     %llu\n",
 		(unsigned long long)be64_to_cpu(vid_hdr->sqnum));
-	printk(KERN_DEBUG "\thdr_crc   %08x\n", be32_to_cpu(vid_hdr->hdr_crc));
-	printk(KERN_DEBUG "Volume identifier header hexdump:\n");
+	pr_err("\thdr_crc   %08x\n", be32_to_cpu(vid_hdr->hdr_crc));
+	pr_err("Volume identifier header hexdump:\n");
 	print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
 		       vid_hdr, UBI_VID_HDR_SIZE, 1);
 }
@@ -112,25 +106,25 @@ void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
  */
 void ubi_dump_vol_info(const struct ubi_volume *vol)
 {
-	printk(KERN_DEBUG "Volume information dump:\n");
-	printk(KERN_DEBUG "\tvol_id          %d\n", vol->vol_id);
-	printk(KERN_DEBUG "\treserved_pebs   %d\n", vol->reserved_pebs);
-	printk(KERN_DEBUG "\talignment       %d\n", vol->alignment);
-	printk(KERN_DEBUG "\tdata_pad        %d\n", vol->data_pad);
-	printk(KERN_DEBUG "\tvol_type        %d\n", vol->vol_type);
-	printk(KERN_DEBUG "\tname_len        %d\n", vol->name_len);
-	printk(KERN_DEBUG "\tusable_leb_size %d\n", vol->usable_leb_size);
-	printk(KERN_DEBUG "\tused_ebs        %d\n", vol->used_ebs);
-	printk(KERN_DEBUG "\tused_bytes      %lld\n", vol->used_bytes);
-	printk(KERN_DEBUG "\tlast_eb_bytes   %d\n", vol->last_eb_bytes);
-	printk(KERN_DEBUG "\tcorrupted       %d\n", vol->corrupted);
-	printk(KERN_DEBUG "\tupd_marker      %d\n", vol->upd_marker);
+	pr_err("Volume information dump:\n");
+	pr_err("\tvol_id          %d\n", vol->vol_id);
+	pr_err("\treserved_pebs   %d\n", vol->reserved_pebs);
+	pr_err("\talignment       %d\n", vol->alignment);
+	pr_err("\tdata_pad        %d\n", vol->data_pad);
+	pr_err("\tvol_type        %d\n", vol->vol_type);
+	pr_err("\tname_len        %d\n", vol->name_len);
+	pr_err("\tusable_leb_size %d\n", vol->usable_leb_size);
+	pr_err("\tused_ebs        %d\n", vol->used_ebs);
+	pr_err("\tused_bytes      %lld\n", vol->used_bytes);
+	pr_err("\tlast_eb_bytes   %d\n", vol->last_eb_bytes);
+	pr_err("\tcorrupted       %d\n", vol->corrupted);
+	pr_err("\tupd_marker      %d\n", vol->upd_marker);
 
 	if (vol->name_len <= UBI_VOL_NAME_MAX &&
 	    strnlen(vol->name, vol->name_len + 1) == vol->name_len) {
-		printk(KERN_DEBUG "\tname            %s\n", vol->name);
+		pr_err("\tname            %s\n", vol->name);
 	} else {
-		printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n",
+		pr_err("\t1st 5 characters of name: %c%c%c%c%c\n",
 		       vol->name[0], vol->name[1], vol->name[2],
 		       vol->name[3], vol->name[4]);
 	}
@@ -145,29 +139,28 @@ void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
 {
 	int name_len = be16_to_cpu(r->name_len);
 
-	printk(KERN_DEBUG "Volume table record %d dump:\n", idx);
-	printk(KERN_DEBUG "\treserved_pebs   %d\n",
-	       be32_to_cpu(r->reserved_pebs));
-	printk(KERN_DEBUG "\talignment       %d\n", be32_to_cpu(r->alignment));
-	printk(KERN_DEBUG "\tdata_pad        %d\n", be32_to_cpu(r->data_pad));
-	printk(KERN_DEBUG "\tvol_type        %d\n", (int)r->vol_type);
-	printk(KERN_DEBUG "\tupd_marker      %d\n", (int)r->upd_marker);
-	printk(KERN_DEBUG "\tname_len        %d\n", name_len);
+	pr_err("Volume table record %d dump:\n", idx);
+	pr_err("\treserved_pebs   %d\n", be32_to_cpu(r->reserved_pebs));
+	pr_err("\talignment       %d\n", be32_to_cpu(r->alignment));
+	pr_err("\tdata_pad        %d\n", be32_to_cpu(r->data_pad));
+	pr_err("\tvol_type        %d\n", (int)r->vol_type);
+	pr_err("\tupd_marker      %d\n", (int)r->upd_marker);
+	pr_err("\tname_len        %d\n", name_len);
 
 	if (r->name[0] == '\0') {
-		printk(KERN_DEBUG "\tname            NULL\n");
+		pr_err("\tname            NULL\n");
 		return;
 	}
 
 	if (name_len <= UBI_VOL_NAME_MAX &&
 	    strnlen(&r->name[0], name_len + 1) == name_len) {
-		printk(KERN_DEBUG "\tname            %s\n", &r->name[0]);
+		pr_err("\tname            %s\n", &r->name[0]);
 	} else {
-		printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n",
+		pr_err("\t1st 5 characters of name: %c%c%c%c%c\n",
 			r->name[0], r->name[1], r->name[2], r->name[3],
 			r->name[4]);
 	}
-	printk(KERN_DEBUG "\tcrc             %#08x\n", be32_to_cpu(r->crc));
+	pr_err("\tcrc             %#08x\n", be32_to_cpu(r->crc));
 }
 
 /**
@@ -176,15 +169,15 @@ void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
  */
 void ubi_dump_av(const struct ubi_ainf_volume *av)
 {
-	printk(KERN_DEBUG "Volume attaching information dump:\n");
-	printk(KERN_DEBUG "\tvol_id         %d\n", av->vol_id);
-	printk(KERN_DEBUG "\thighest_lnum   %d\n", av->highest_lnum);
-	printk(KERN_DEBUG "\tleb_count      %d\n", av->leb_count);
-	printk(KERN_DEBUG "\tcompat         %d\n", av->compat);
-	printk(KERN_DEBUG "\tvol_type       %d\n", av->vol_type);
-	printk(KERN_DEBUG "\tused_ebs       %d\n", av->used_ebs);
-	printk(KERN_DEBUG "\tlast_data_size %d\n", av->last_data_size);
-	printk(KERN_DEBUG "\tdata_pad       %d\n", av->data_pad);
+	pr_err("Volume attaching information dump:\n");
+	pr_err("\tvol_id         %d\n", av->vol_id);
+	pr_err("\thighest_lnum   %d\n", av->highest_lnum);
+	pr_err("\tleb_count      %d\n", av->leb_count);
+	pr_err("\tcompat         %d\n", av->compat);
+	pr_err("\tvol_type       %d\n", av->vol_type);
+	pr_err("\tused_ebs       %d\n", av->used_ebs);
+	pr_err("\tlast_data_size %d\n", av->last_data_size);
+	pr_err("\tdata_pad       %d\n", av->data_pad);
 }
 
 /**
@@ -194,13 +187,13 @@ void ubi_dump_av(const struct ubi_ainf_volume *av)
  */
 void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type)
 {
-	printk(KERN_DEBUG "eraseblock attaching information dump:\n");
-	printk(KERN_DEBUG "\tec       %d\n", aeb->ec);
-	printk(KERN_DEBUG "\tpnum     %d\n", aeb->pnum);
+	pr_err("eraseblock attaching information dump:\n");
+	pr_err("\tec       %d\n", aeb->ec);
+	pr_err("\tpnum     %d\n", aeb->pnum);
 	if (type == 0) {
-		printk(KERN_DEBUG "\tlnum     %d\n", aeb->lnum);
-		printk(KERN_DEBUG "\tscrub    %d\n", aeb->scrub);
-		printk(KERN_DEBUG "\tsqnum    %llu\n", aeb->sqnum);
+		pr_err("\tlnum     %d\n", aeb->lnum);
+		pr_err("\tscrub    %d\n", aeb->scrub);
+		pr_err("\tsqnum    %llu\n", aeb->sqnum);
 	}
 }
 
@@ -212,16 +205,16 @@ void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req)
 {
 	char nm[17];
 
-	printk(KERN_DEBUG "Volume creation request dump:\n");
-	printk(KERN_DEBUG "\tvol_id    %d\n",   req->vol_id);
-	printk(KERN_DEBUG "\talignment %d\n",   req->alignment);
-	printk(KERN_DEBUG "\tbytes     %lld\n", (long long)req->bytes);
-	printk(KERN_DEBUG "\tvol_type  %d\n",   req->vol_type);
-	printk(KERN_DEBUG "\tname_len  %d\n",   req->name_len);
+	pr_err("Volume creation request dump:\n");
+	pr_err("\tvol_id    %d\n",   req->vol_id);
+	pr_err("\talignment %d\n",   req->alignment);
+	pr_err("\tbytes     %lld\n", (long long)req->bytes);
+	pr_err("\tvol_type  %d\n",   req->vol_type);
+	pr_err("\tname_len  %d\n",   req->name_len);
 
 	memcpy(nm, req->name, 16);
 	nm[16] = 0;
-	printk(KERN_DEBUG "\t1st 16 characters of name: %s\n", nm);
+	pr_err("\t1st 16 characters of name: %s\n", nm);
 }
 
 /**
diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h
index d5d2645b51a..3dbc877d966 100644
--- a/drivers/mtd/ubi/debug.h
+++ b/drivers/mtd/ubi/debug.h
@@ -29,22 +29,18 @@ void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
 
 #define ubi_assert(expr)  do {                                               \
 	if (unlikely(!(expr))) {                                             \
-		printk(KERN_CRIT "UBI assert failed in %s at %u (pid %d)\n", \
+		pr_crit("UBI assert failed in %s at %u (pid %d)\n",          \
 		       __func__, __LINE__, current->pid);                    \
 		dump_stack();                                                \
 	}                                                                    \
 } while (0)
 
-#define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a)  \
+#define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a)                   \
 		print_hex_dump(l, ps, pt, r, g, b, len, a)
 
 #define ubi_dbg_msg(type, fmt, ...) \
-	pr_debug("UBI DBG " type ": " fmt "\n", ##__VA_ARGS__)
-
-/* Just a debugging messages not related to any specific UBI subsystem */
-#define dbg_msg(fmt, ...)                                    \
-	printk(KERN_DEBUG "UBI DBG (pid %d): %s: " fmt "\n", \
-	       current->pid, __func__, ##__VA_ARGS__)
+	pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid,       \
+		 ##__VA_ARGS__)
 
 /* General debugging messages */
 #define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index b703ac7729c..a26d7d25317 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -420,9 +420,8 @@ retry:
 				 */
 				if (err == UBI_IO_BAD_HDR_EBADMSG ||
 				    err == UBI_IO_BAD_HDR) {
-					ubi_warn("corrupted VID header at PEB "
-						 "%d, LEB %d:%d", pnum, vol_id,
-						 lnum);
+					ubi_warn("corrupted VID header at PEB %d, LEB %d:%d",
+						 pnum, vol_id, lnum);
 					err = -EBADMSG;
 				} else
 					ubi_ro_mode(ubi);
@@ -660,9 +659,8 @@ retry:
 	if (len) {
 		err = ubi_io_write_data(ubi, buf, pnum, offset, len);
 		if (err) {
-			ubi_warn("failed to write %d bytes at offset %d of "
-				 "LEB %d:%d, PEB %d", len, offset, vol_id,
-				 lnum, pnum);
+			ubi_warn("failed to write %d bytes at offset %d of LEB %d:%d, PEB %d",
+				 len, offset, vol_id, lnum, pnum);
 			goto write_error;
 		}
 	}
@@ -1040,9 +1038,8 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
 	 * cancel it.
 	 */
 	if (vol->eba_tbl[lnum] != from) {
-		dbg_wl("LEB %d:%d is no longer mapped to PEB %d, mapped to "
-		       "PEB %d, cancel", vol_id, lnum, from,
-		       vol->eba_tbl[lnum]);
+		dbg_wl("LEB %d:%d is no longer mapped to PEB %d, mapped to PEB %d, cancel",
+		       vol_id, lnum, from, vol->eba_tbl[lnum]);
 		err = MOVE_CANCEL_RACE;
 		goto out_unlock_leb;
 	}
@@ -1107,8 +1104,8 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
 	err = ubi_io_read_vid_hdr(ubi, to, vid_hdr, 1);
 	if (err) {
 		if (err != UBI_IO_BITFLIPS) {
-			ubi_warn("error %d while reading VID header back from "
-				  "PEB %d", err, to);
+			ubi_warn("error %d while reading VID header back from PEB %d",
+				 err, to);
 			if (is_error_sane(err))
 				err = MOVE_TARGET_RD_ERR;
 		} else
@@ -1134,8 +1131,8 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
 		err = ubi_io_read_data(ubi, ubi->peb_buf, to, 0, aldata_size);
 		if (err) {
 			if (err != UBI_IO_BITFLIPS) {
-				ubi_warn("error %d while reading data back "
-					 "from PEB %d", err, to);
+				ubi_warn("error %d while reading data back from PEB %d",
+					 err, to);
 				if (is_error_sane(err))
 					err = MOVE_TARGET_RD_ERR;
 			} else
@@ -1146,8 +1143,8 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
 		cond_resched();
 
 		if (crc != crc32(UBI_CRC32_INIT, ubi->peb_buf, data_size)) {
-			ubi_warn("read data back from PEB %d and it is "
-				 "different", to);
+			ubi_warn("read data back from PEB %d and it is different",
+				 to);
 			err = -EINVAL;
 			goto out_unlock_buf;
 		}
@@ -1197,11 +1194,11 @@ static void print_rsvd_warning(struct ubi_device *ubi,
 			return;
 	}
 
-	ubi_warn("cannot reserve enough PEBs for bad PEB handling, reserved %d,"
-		 " need %d", ubi->beb_rsvd_pebs, ubi->beb_rsvd_level);
+	ubi_warn("cannot reserve enough PEBs for bad PEB handling, reserved %d, need %d",
+		 ubi->beb_rsvd_pebs, ubi->beb_rsvd_level);
 	if (ubi->corr_peb_count)
 		ubi_warn("%d PEBs are corrupted and not used",
-			ubi->corr_peb_count);
+			 ubi->corr_peb_count);
 }
 
 /**
diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c
index 4e44bee4c56..4bd4db8c84c 100644
--- a/drivers/mtd/ubi/gluebi.c
+++ b/drivers/mtd/ubi/gluebi.c
@@ -41,7 +41,7 @@
 #include "ubi-media.h"
 
 #define err_msg(fmt, ...)                                   \
-	printk(KERN_DEBUG "gluebi (pid %d): %s: " fmt "\n", \
+	pr_err("gluebi (pid %d): %s: " fmt "\n",            \
 	       current->pid, __func__, ##__VA_ARGS__)
 
 /**
@@ -341,9 +341,8 @@ static int gluebi_create(struct ubi_device_info *di,
 	mutex_lock(&devices_mutex);
 	g = find_gluebi_nolock(vi->ubi_num, vi->vol_id);
 	if (g)
-		err_msg("gluebi MTD device %d form UBI device %d volume %d "
-			"already exists", g->mtd.index, vi->ubi_num,
-			vi->vol_id);
+		err_msg("gluebi MTD device %d form UBI device %d volume %d already exists",
+			g->mtd.index, vi->ubi_num, vi->vol_id);
 	mutex_unlock(&devices_mutex);
 
 	if (mtd_device_register(mtd, NULL, 0)) {
@@ -376,8 +375,8 @@ static int gluebi_remove(struct ubi_volume_info *vi)
 	mutex_lock(&devices_mutex);
 	gluebi = find_gluebi_nolock(vi->ubi_num, vi->vol_id);
 	if (!gluebi) {
-		err_msg("got remove notification for unknown UBI device %d "
-			"volume %d", vi->ubi_num, vi->vol_id);
+		err_msg("got remove notification for unknown UBI device %d volume %d",
+			vi->ubi_num, vi->vol_id);
 		err = -ENOENT;
 	} else if (gluebi->refcnt)
 		err = -EBUSY;
@@ -390,9 +389,8 @@ static int gluebi_remove(struct ubi_volume_info *vi)
 	mtd = &gluebi->mtd;
 	err = mtd_device_unregister(mtd);
 	if (err) {
-		err_msg("cannot remove fake MTD device %d, UBI device %d, "
-			"volume %d, error %d", mtd->index, gluebi->ubi_num,
-			gluebi->vol_id, err);
+		err_msg("cannot remove fake MTD device %d, UBI device %d, volume %d, error %d",
+			mtd->index, gluebi->ubi_num, gluebi->vol_id, err);
 		mutex_lock(&devices_mutex);
 		list_add_tail(&gluebi->list, &gluebi_devices);
 		mutex_unlock(&devices_mutex);
@@ -422,8 +420,8 @@ static int gluebi_updated(struct ubi_volume_info *vi)
 	gluebi = find_gluebi_nolock(vi->ubi_num, vi->vol_id);
 	if (!gluebi) {
 		mutex_unlock(&devices_mutex);
-		err_msg("got update notification for unknown UBI device %d "
-			"volume %d", vi->ubi_num, vi->vol_id);
+		err_msg("got update notification for unknown UBI device %d volume %d",
+			vi->ubi_num, vi->vol_id);
 		return -ENOENT;
 	}
 
@@ -449,8 +447,8 @@ static int gluebi_resized(struct ubi_volume_info *vi)
 	gluebi = find_gluebi_nolock(vi->ubi_num, vi->vol_id);
 	if (!gluebi) {
 		mutex_unlock(&devices_mutex);
-		err_msg("got update notification for unknown UBI device %d "
-			"volume %d", vi->ubi_num, vi->vol_id);
+		err_msg("got update notification for unknown UBI device %d volume %d",
+			vi->ubi_num, vi->vol_id);
 		return -ENOENT;
 	}
 	gluebi->mtd.size = vi->used_bytes;
@@ -507,9 +505,9 @@ static void __exit ubi_gluebi_exit(void)
 
 		err = mtd_device_unregister(mtd);
 		if (err)
-			err_msg("error %d while removing gluebi MTD device %d, "
-				"UBI device %d, volume %d - ignoring", err,
-				mtd->index, gluebi->ubi_num, gluebi->vol_id);
+			err_msg("error %d while removing gluebi MTD device %d, UBI device %d, volume %d - ignoring",
+				err, mtd->index, gluebi->ubi_num,
+				gluebi->vol_id);
 		kfree(mtd->name);
 		kfree(gluebi);
 	}
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index a8d523794b5..78a1dcbf210 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -177,21 +177,20 @@ retry:
 			 * enabled. A corresponding message will be printed
 			 * later, when it is has been scrubbed.
 			 */
-			dbg_msg("fixable bit-flip detected at PEB %d", pnum);
+			ubi_msg("fixable bit-flip detected at PEB %d", pnum);
 			ubi_assert(len == read);
 			return UBI_IO_BITFLIPS;
 		}
 
 		if (retries++ < UBI_IO_RETRIES) {
-			ubi_warn("error %d%s while reading %d bytes from PEB "
-				 "%d:%d, read only %zd bytes, retry",
+			ubi_warn("error %d%s while reading %d bytes from PEB %d:%d, read only %zd bytes, retry",
 				 err, errstr, len, pnum, offset, read);
 			yield();
 			goto retry;
 		}
 
-		ubi_err("error %d%s while reading %d bytes from PEB %d:%d, "
-			"read %zd bytes", err, errstr, len, pnum, offset, read);
+		ubi_err("error %d%s while reading %d bytes from PEB %d:%d, read %zd bytes",
+			err, errstr, len, pnum, offset, read);
 		dump_stack();
 
 		/*
@@ -274,8 +273,8 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
 	}
 
 	if (ubi_dbg_is_write_failure(ubi)) {
-		ubi_err("cannot write %d bytes to PEB %d:%d "
-			"(emulated)", len, pnum, offset);
+		ubi_err("cannot write %d bytes to PEB %d:%d (emulated)",
+			len, pnum, offset);
 		dump_stack();
 		return -EIO;
 	}
@@ -283,8 +282,8 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
 	addr = (loff_t)pnum * ubi->peb_size + offset;
 	err = mtd_write(ubi->mtd, addr, len, &written, buf);
 	if (err) {
-		ubi_err("error %d while writing %d bytes to PEB %d:%d, written "
-			"%zd bytes", err, len, pnum, offset, written);
+		ubi_err("error %d while writing %d bytes to PEB %d:%d, written %zd bytes",
+			err, len, pnum, offset, written);
 		dump_stack();
 		ubi_dump_flash(ubi, pnum, offset, len);
 	} else
@@ -685,8 +684,7 @@ static int validate_ec_hdr(const struct ubi_device *ubi,
 	leb_start = be32_to_cpu(ec_hdr->data_offset);
 
 	if (ec_hdr->version != UBI_VERSION) {
-		ubi_err("node with incompatible UBI version found: "
-			"this UBI version is %d, image version is %d",
+		ubi_err("node with incompatible UBI version found: this UBI version is %d, image version is %d",
 			UBI_VERSION, (int)ec_hdr->version);
 		goto bad;
 	}
@@ -777,10 +775,10 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
 		if (ubi_check_pattern(ec_hdr, 0xFF, UBI_EC_HDR_SIZE)) {
 			/* The physical eraseblock is supposedly empty */
 			if (verbose)
-				ubi_warn("no EC header found at PEB %d, "
-					 "only 0xFF bytes", pnum);
-			dbg_bld("no EC header found at PEB %d, "
-				"only 0xFF bytes", pnum);
+				ubi_warn("no EC header found at PEB %d, only 0xFF bytes",
+					 pnum);
+			dbg_bld("no EC header found at PEB %d, only 0xFF bytes",
+				pnum);
 			if (!read_err)
 				return UBI_IO_FF;
 			else
@@ -792,12 +790,12 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
 		 * 0xFF bytes. Report that the header is corrupted.
 		 */
 		if (verbose) {
-			ubi_warn("bad magic number at PEB %d: %08x instead of "
-				 "%08x", pnum, magic, UBI_EC_HDR_MAGIC);
+			ubi_warn("bad magic number at PEB %d: %08x instead of %08x",
+				 pnum, magic, UBI_EC_HDR_MAGIC);
 			ubi_dump_ec_hdr(ec_hdr);
 		}
-		dbg_bld("bad magic number at PEB %d: %08x instead of "
-			"%08x", pnum, magic, UBI_EC_HDR_MAGIC);
+		dbg_bld("bad magic number at PEB %d: %08x instead of %08x",
+			pnum, magic, UBI_EC_HDR_MAGIC);
 		return UBI_IO_BAD_HDR;
 	}
 
@@ -806,12 +804,12 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
 
 	if (hdr_crc != crc) {
 		if (verbose) {
-			ubi_warn("bad EC header CRC at PEB %d, calculated "
-				 "%#08x, read %#08x", pnum, crc, hdr_crc);
+			ubi_warn("bad EC header CRC at PEB %d, calculated %#08x, read %#08x",
+				 pnum, crc, hdr_crc);
 			ubi_dump_ec_hdr(ec_hdr);
 		}
-		dbg_bld("bad EC header CRC at PEB %d, calculated "
-			"%#08x, read %#08x", pnum, crc, hdr_crc);
+		dbg_bld("bad EC header CRC at PEB %d, calculated %#08x, read %#08x",
+			pnum, crc, hdr_crc);
 
 		if (!read_err)
 			return UBI_IO_BAD_HDR;
@@ -1032,10 +1030,10 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
 
 		if (ubi_check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) {
 			if (verbose)
-				ubi_warn("no VID header found at PEB %d, "
-					 "only 0xFF bytes", pnum);
-			dbg_bld("no VID header found at PEB %d, "
-				"only 0xFF bytes", pnum);
+				ubi_warn("no VID header found at PEB %d, only 0xFF bytes",
+					 pnum);
+			dbg_bld("no VID header found at PEB %d, only 0xFF bytes",
+				pnum);
 			if (!read_err)
 				return UBI_IO_FF;
 			else
@@ -1043,12 +1041,12 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
 		}
 
 		if (verbose) {
-			ubi_warn("bad magic number at PEB %d: %08x instead of "
-				 "%08x", pnum, magic, UBI_VID_HDR_MAGIC);
+			ubi_warn("bad magic number at PEB %d: %08x instead of %08x",
+				 pnum, magic, UBI_VID_HDR_MAGIC);
 			ubi_dump_vid_hdr(vid_hdr);
 		}
-		dbg_bld("bad magic number at PEB %d: %08x instead of "
-			"%08x", pnum, magic, UBI_VID_HDR_MAGIC);
+		dbg_bld("bad magic number at PEB %d: %08x instead of %08x",
+			pnum, magic, UBI_VID_HDR_MAGIC);
 		return UBI_IO_BAD_HDR;
 	}
 
@@ -1057,12 +1055,12 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
 
 	if (hdr_crc != crc) {
 		if (verbose) {
-			ubi_warn("bad CRC at PEB %d, calculated %#08x, "
-				 "read %#08x", pnum, crc, hdr_crc);
+			ubi_warn("bad CRC at PEB %d, calculated %#08x, read %#08x",
+				 pnum, crc, hdr_crc);
 			ubi_dump_vid_hdr(vid_hdr);
 		}
-		dbg_bld("bad CRC at PEB %d, calculated %#08x, "
-			"read %#08x", pnum, crc, hdr_crc);
+		dbg_bld("bad CRC at PEB %d, calculated %#08x, read %#08x",
+			pnum, crc, hdr_crc);
 		if (!read_err)
 			return UBI_IO_BAD_HDR;
 		else
@@ -1300,8 +1298,8 @@ static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum)
 	crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_EC_HDR_SIZE_CRC);
 	hdr_crc = be32_to_cpu(vid_hdr->hdr_crc);
 	if (hdr_crc != crc) {
-		ubi_err("bad VID header CRC at PEB %d, calculated %#08x, "
-			"read %#08x", pnum, crc, hdr_crc);
+		ubi_err("bad VID header CRC at PEB %d, calculated %#08x, read %#08x",
+			pnum, crc, hdr_crc);
 		ubi_err("self-check failed for PEB %d", pnum);
 		ubi_dump_vid_hdr(vid_hdr);
 		dump_stack();
@@ -1411,15 +1409,15 @@ int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
 
 	err = mtd_read(ubi->mtd, addr, len, &read, buf);
 	if (err && !mtd_is_bitflip(err)) {
-		ubi_err("error %d while reading %d bytes from PEB %d:%d, "
-			"read %zd bytes", err, len, pnum, offset, read);
+		ubi_err("error %d while reading %d bytes from PEB %d:%d, read %zd bytes",
+			err, len, pnum, offset, read);
 		goto error;
 	}
 
 	err = ubi_check_pattern(buf, 0xFF, len);
 	if (err == 0) {
-		ubi_err("flash region at PEB %d:%d, length %d does not "
-			"contain all 0xFF bytes", pnum, offset, len);
+		ubi_err("flash region at PEB %d:%d, length %d does not contain all 0xFF bytes",
+			pnum, offset, len);
 		goto fail;
 	}
 
diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c
index 8bbfb444b89..f913d701a5b 100644
--- a/drivers/mtd/ubi/misc.c
+++ b/drivers/mtd/ubi/misc.c
@@ -121,10 +121,16 @@ void ubi_update_reserved(struct ubi_device *ubi)
  */
 void ubi_calculate_reserved(struct ubi_device *ubi)
 {
-	ubi->beb_rsvd_level = ubi->good_peb_count/100;
-	ubi->beb_rsvd_level *= CONFIG_MTD_UBI_BEB_RESERVE;
-	if (ubi->beb_rsvd_level < MIN_RESEVED_PEBS)
-		ubi->beb_rsvd_level = MIN_RESEVED_PEBS;
+	/*
+	 * Calculate the actual number of PEBs currently needed to be reserved
+	 * for future bad eraseblock handling.
+	 */
+	ubi->beb_rsvd_level = ubi->bad_peb_limit - ubi->bad_peb_count;
+	if (ubi->beb_rsvd_level < 0) {
+		ubi->beb_rsvd_level = 0;
+		ubi_warn("number of bad PEBs (%d) is above the expected limit (%d), not reserving any PEBs for bad PEB handling, will use available PEBs (if any)",
+			 ubi->bad_peb_count, ubi->bad_peb_limit);
+	}
 }
 
 /**
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 84f66e3fa05..383ee43d242 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -51,17 +51,14 @@
 #define UBI_NAME_STR "ubi"
 
 /* Normal UBI messages */
-#define ubi_msg(fmt, ...) printk(KERN_NOTICE "UBI: " fmt "\n", ##__VA_ARGS__)
+#define ubi_msg(fmt, ...) pr_notice("UBI: " fmt "\n", ##__VA_ARGS__)
 /* UBI warning messages */
-#define ubi_warn(fmt, ...) printk(KERN_WARNING "UBI warning: %s: " fmt "\n", \
-				  __func__, ##__VA_ARGS__)
+#define ubi_warn(fmt, ...) pr_warn("UBI warning: %s: " fmt "\n",  \
+				   __func__, ##__VA_ARGS__)
 /* UBI error messages */
-#define ubi_err(fmt, ...) printk(KERN_ERR "UBI error: %s: " fmt "\n", \
+#define ubi_err(fmt, ...) pr_err("UBI error: %s: " fmt "\n",      \
 				 __func__, ##__VA_ARGS__)
 
-/* Lowest number PEBs reserved for bad PEB handling */
-#define MIN_RESEVED_PEBS 2
-
 /* Background thread name pattern */
 #define UBI_BGT_NAME_PATTERN "ubi_bgt%dd"
 
@@ -363,6 +360,7 @@ struct ubi_wl_entry;
  * @flash_size: underlying MTD device size (in bytes)
  * @peb_count: count of physical eraseblocks on the MTD device
  * @peb_size: physical eraseblock size
+ * @bad_peb_limit: top limit of expected bad physical eraseblocks
  * @bad_peb_count: count of bad physical eraseblocks
  * @good_peb_count: count of good physical eraseblocks
  * @corr_peb_count: count of corrupted physical eraseblocks (preserved and not
@@ -410,6 +408,7 @@ struct ubi_device {
 	int avail_pebs;
 	int beb_rsvd_pebs;
 	int beb_rsvd_level;
+	int bad_peb_limit;
 
 	int autoresize_vol_id;
 	int vtbl_slots;
@@ -694,7 +693,8 @@ int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,
 			 struct ubi_vid_hdr *vid_hdr);
 
 /* build.c */
-int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset);
+int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
+		       int vid_hdr_offset, int max_beb_per1024);
 int ubi_detach_mtd_dev(int ubi_num, int anyway);
 struct ubi_device *ubi_get_device(int ubi_num);
 void ubi_put_device(struct ubi_device *ubi);
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index 437bc193e17..926e3df14fb 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -270,8 +270,8 @@ static int vtbl_check(const struct ubi_device *ubi,
 
 			if (len1 > 0 && len1 == len2 &&
 			    !strncmp(vtbl[i].name, vtbl[n].name, len1)) {
-				ubi_err("volumes %d and %d have the same name"
-					" \"%s\"", i, n, vtbl[i].name);
+				ubi_err("volumes %d and %d have the same name \"%s\"",
+					i, n, vtbl[i].name);
 				ubi_dump_vtbl_record(&vtbl[i], i);
 				ubi_dump_vtbl_record(&vtbl[n], n);
 				return -EINVAL;
@@ -304,7 +304,7 @@ static int create_vtbl(struct ubi_device *ubi, struct ubi_attach_info *ai,
 	struct ubi_vid_hdr *vid_hdr;
 	struct ubi_ainf_peb *new_aeb;
 
-	ubi_msg("create volume table (copy #%d)", copy + 1);
+	dbg_gen("create volume table (copy #%d)", copy + 1);
 
 	vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_KERNEL);
 	if (!vid_hdr)
@@ -340,7 +340,7 @@ retry:
 	 * of this LEB as it will be deleted and freed in 'ubi_add_to_av()'.
 	 */
 	err = ubi_add_to_av(ubi, ai, new_aeb->pnum, new_aeb->ec, vid_hdr, 0);
-	kfree(new_aeb);
+	kmem_cache_free(ai->aeb_slab_cache, new_aeb);
 	ubi_free_vid_hdr(ubi, vid_hdr);
 	return err;
 
@@ -353,7 +353,7 @@ write_error:
 		list_add(&new_aeb->u.list, &ai->erase);
 		goto retry;
 	}
-	kfree(new_aeb);
+	kmem_cache_free(ai->aeb_slab_cache, new_aeb);
 out_free:
 	ubi_free_vid_hdr(ubi, vid_hdr);
 	return err;
@@ -562,8 +562,8 @@ static int init_volumes(struct ubi_device *ubi,
 		if (vtbl[i].flags & UBI_VTBL_AUTORESIZE_FLG) {
 			/* Auto re-size flag may be set only for one volume */
 			if (ubi->autoresize_vol_id != -1) {
-				ubi_err("more than one auto-resize volume (%d "
-					"and %d)", ubi->autoresize_vol_id, i);
+				ubi_err("more than one auto-resize volume (%d and %d)",
+					ubi->autoresize_vol_id, i);
 				kfree(vol);
 				return -EINVAL;
 			}
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index b6be644e7b8..032fc57f109 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -978,9 +978,10 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 			int cancel)
 {
 	struct ubi_wl_entry *e = wl_wrk->e;
-	int pnum = e->pnum, err, need;
+	int pnum = e->pnum;
 	int vol_id = wl_wrk->vol_id;
 	int lnum = wl_wrk->lnum;
+	int err, available_consumed = 0;
 
 	if (cancel) {
 		dbg_wl("cancel erasure of PEB %d EC %d", pnum, e->ec);
@@ -1045,20 +1046,14 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 	}
 
 	spin_lock(&ubi->volumes_lock);
-	need = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs + 1;
-	if (need > 0) {
-		need = ubi->avail_pebs >= need ? need : ubi->avail_pebs;
-		ubi->avail_pebs -= need;
-		ubi->rsvd_pebs += need;
-		ubi->beb_rsvd_pebs += need;
-		if (need > 0)
-			ubi_msg("reserve more %d PEBs", need);
-	}
-
 	if (ubi->beb_rsvd_pebs == 0) {
-		spin_unlock(&ubi->volumes_lock);
-		ubi_err("no reserved physical eraseblocks");
-		goto out_ro;
+		if (ubi->avail_pebs == 0) {
+			spin_unlock(&ubi->volumes_lock);
+			ubi_err("no reserved/available physical eraseblocks");
+			goto out_ro;
+		}
+		ubi->avail_pebs -= 1;
+		available_consumed = 1;
 	}
 	spin_unlock(&ubi->volumes_lock);
 
@@ -1068,19 +1063,36 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 		goto out_ro;
 
 	spin_lock(&ubi->volumes_lock);
-	ubi->beb_rsvd_pebs -= 1;
+	if (ubi->beb_rsvd_pebs > 0) {
+		if (available_consumed) {
+			/*
+			 * The amount of reserved PEBs increased since we last
+			 * checked.
+			 */
+			ubi->avail_pebs += 1;
+			available_consumed = 0;
+		}
+		ubi->beb_rsvd_pebs -= 1;
+	}
 	ubi->bad_peb_count += 1;
 	ubi->good_peb_count -= 1;
 	ubi_calculate_reserved(ubi);
-	if (ubi->beb_rsvd_pebs)
+	if (available_consumed)
+		ubi_warn("no PEBs in the reserved pool, used an available PEB");
+	else if (ubi->beb_rsvd_pebs)
 		ubi_msg("%d PEBs left in the reserve", ubi->beb_rsvd_pebs);
 	else
-		ubi_warn("last PEB from the reserved pool was used");
+		ubi_warn("last PEB from the reserve was used");
 	spin_unlock(&ubi->volumes_lock);
 
 	return err;
 
 out_ro:
+	if (available_consumed) {
+		spin_lock(&ubi->volumes_lock);
+		ubi->avail_pebs += 1;
+		spin_unlock(&ubi->volumes_lock);
+	}
 	ubi_ro_mode(ubi);
 	return err;
 }
@@ -1189,7 +1201,7 @@ int ubi_wl_scrub_peb(struct ubi_device *ubi, int pnum)
 {
 	struct ubi_wl_entry *e;
 
-	dbg_msg("schedule PEB %d for scrubbing", pnum);
+	ubi_msg("schedule PEB %d for scrubbing", pnum);
 
 retry:
 	spin_lock(&ubi->wl_lock);
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 0c2bd806950..6a70184c3f2 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -107,8 +107,6 @@ config MII
 	  or internal device.  It is safe to say Y or M here even if your
 	  ethernet card lacks MII.
 
-source "drivers/ieee802154/Kconfig"
-
 config IFB
 	tristate "Intermediate Functional Block support"
 	depends on NET_CLS_ACT
@@ -151,6 +149,19 @@ config MACVTAP
 	  To compile this driver as a module, choose M here: the module
 	  will be called macvtap.
 
+config VXLAN
+       tristate "Virtual eXtensible Local Area Network (VXLAN)"
+       depends on EXPERIMENTAL && INET
+       ---help---
+	  This allows one to create vxlan virtual interfaces that provide
+	  Layer 2 Networks over Layer 3 Networks. VXLAN is often used
+	  to tunnel virtual network infrastructure in virtualized environments.
+	  For more information see:
+	    http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-02
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called vxlan.
+
 config NETCONSOLE
 	tristate "Network console logging support"
 	---help---
@@ -290,6 +301,8 @@ source "drivers/net/wimax/Kconfig"
 
 source "drivers/net/wan/Kconfig"
 
+source "drivers/net/ieee802154/Kconfig"
+
 config XEN_NETDEV_FRONTEND
 	tristate "Xen network device frontend driver"
 	depends on XEN
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 3d375ca128a..335db78fd98 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_NET_TEAM) += team/
 obj-$(CONFIG_TUN) += tun.o
 obj-$(CONFIG_VETH) += veth.o
 obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
+obj-$(CONFIG_VXLAN) += vxlan.o
 
 #
 # Networking Drivers
@@ -53,6 +54,7 @@ obj-$(CONFIG_SUNGEM_PHY) += sungem_phy.o
 obj-$(CONFIG_WAN) += wan/
 obj-$(CONFIG_WLAN) += wireless/
 obj-$(CONFIG_WIMAX) += wimax/
+obj-$(CONFIG_IEEE802154) += ieee802154/
 
 obj-$(CONFIG_VMXNET3) += vmxnet3/
 obj-$(CONFIG_XEN_NETDEV_FRONTEND) += xen-netfront.o
diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c
index 545c09ed907..cff6f023c03 100644
--- a/drivers/net/appletalk/cops.c
+++ b/drivers/net/appletalk/cops.c
@@ -996,9 +996,7 @@ static int __init cops_module_init(void)
 		printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n",
 			cardname);
 	cops_dev = cops_probe(-1);
-	if (IS_ERR(cops_dev))
-		return PTR_ERR(cops_dev);
-        return 0;
+	return PTR_RET(cops_dev);
 }
 
 static void __exit cops_module_exit(void)
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index 0910dce3996..b5782cdf0bc 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -1243,9 +1243,7 @@ static int __init ltpc_module_init(void)
 		       "ltpc: Autoprobing is not recommended for modules\n");
 
 	dev_ltpc = ltpc_probe();
-	if (IS_ERR(dev_ltpc))
-		return PTR_ERR(dev_ltpc);
-	return 0;
+	return PTR_RET(dev_ltpc);
 }
 module_init(ltpc_module_init);
 #endif
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6fae5f3ec7f..7858c58df4a 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -398,7 +398,7 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
 		     sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping));
 	skb->queue_mapping = qdisc_skb_cb(skb)->slave_dev_queue_mapping;
 
-	if (unlikely(netpoll_tx_running(slave_dev)))
+	if (unlikely(netpoll_tx_running(bond->dev)))
 		bond_netpoll_send_skb(bond_get_slave_by_dev(bond, slave_dev), skb);
 	else
 		dev_queue_xmit(skb);
@@ -1120,10 +1120,10 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active)
 			write_unlock_bh(&bond->curr_slave_lock);
 			read_unlock(&bond->lock);
 
-			netdev_bonding_change(bond->dev, NETDEV_BONDING_FAILOVER);
+			call_netdevice_notifiers(NETDEV_BONDING_FAILOVER, bond->dev);
 			if (should_notify_peers)
-				netdev_bonding_change(bond->dev,
-						      NETDEV_NOTIFY_PEERS);
+				call_netdevice_notifiers(NETDEV_NOTIFY_PEERS,
+							 bond->dev);
 
 			read_lock(&bond->lock);
 			write_lock_bh(&bond->curr_slave_lock);
@@ -1235,12 +1235,12 @@ static inline int slave_enable_netpoll(struct slave *slave)
 	struct netpoll *np;
 	int err = 0;
 
-	np = kzalloc(sizeof(*np), GFP_KERNEL);
+	np = kzalloc(sizeof(*np), GFP_ATOMIC);
 	err = -ENOMEM;
 	if (!np)
 		goto out;
 
-	err = __netpoll_setup(np, slave->dev);
+	err = __netpoll_setup(np, slave->dev, GFP_ATOMIC);
 	if (err) {
 		kfree(np);
 		goto out;
@@ -1257,9 +1257,7 @@ static inline void slave_disable_netpoll(struct slave *slave)
 		return;
 
 	slave->np = NULL;
-	synchronize_rcu_bh();
-	__netpoll_cleanup(np);
-	kfree(np);
+	__netpoll_free_rcu(np);
 }
 static inline bool slave_dev_support_netpoll(struct net_device *slave_dev)
 {
@@ -1292,7 +1290,7 @@ static void bond_netpoll_cleanup(struct net_device *bond_dev)
 	read_unlock(&bond->lock);
 }
 
-static int bond_netpoll_setup(struct net_device *dev, struct netpoll_info *ni)
+static int bond_netpoll_setup(struct net_device *dev, struct netpoll_info *ni, gfp_t gfp)
 {
 	struct bonding *bond = netdev_priv(dev);
 	struct slave *slave;
@@ -1560,8 +1558,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 				 bond_dev->name,
 				 bond_dev->type, slave_dev->type);
 
-			res = netdev_bonding_change(bond_dev,
-						    NETDEV_PRE_TYPE_CHANGE);
+			res = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE,
+						       bond_dev);
 			res = notifier_to_errno(res);
 			if (res) {
 				pr_err("%s: refused to change device type\n",
@@ -1581,8 +1579,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 				bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 			}
 
-			netdev_bonding_change(bond_dev,
-					      NETDEV_POST_TYPE_CHANGE);
+			call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE,
+						 bond_dev);
 		}
 	} else if (bond_dev->type != slave_dev->type) {
 		pr_err("%s ether type (%d) is different from other slaves (%d), can not enslave it.\n",
@@ -1943,7 +1941,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
 	}
 
 	block_netpoll_tx();
-	netdev_bonding_change(bond_dev, NETDEV_RELEASE);
+	call_netdevice_notifiers(NETDEV_RELEASE, bond_dev);
 	write_lock_bh(&bond->lock);
 
 	slave = bond_get_slave_by_dev(bond, slave_dev);
@@ -2586,7 +2584,7 @@ re_arm:
 			read_unlock(&bond->lock);
 			return;
 		}
-		netdev_bonding_change(bond->dev, NETDEV_NOTIFY_PEERS);
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
 		rtnl_unlock();
 	}
 }
@@ -2813,12 +2811,13 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 					    arp_work.work);
 	struct slave *slave, *oldcurrent;
 	int do_failover = 0;
-	int delta_in_ticks;
+	int delta_in_ticks, extra_ticks;
 	int i;
 
 	read_lock(&bond->lock);
 
 	delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
+	extra_ticks = delta_in_ticks / 2;
 
 	if (bond->slave_cnt == 0)
 		goto re_arm;
@@ -2841,10 +2840,10 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 		if (slave->link != BOND_LINK_UP) {
 			if (time_in_range(jiffies,
 				trans_start - delta_in_ticks,
-				trans_start + delta_in_ticks) &&
+				trans_start + delta_in_ticks + extra_ticks) &&
 			    time_in_range(jiffies,
 				slave->dev->last_rx - delta_in_ticks,
-				slave->dev->last_rx + delta_in_ticks)) {
+				slave->dev->last_rx + delta_in_ticks + extra_ticks)) {
 
 				slave->link  = BOND_LINK_UP;
 				bond_set_active_slave(slave);
@@ -2874,10 +2873,10 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 			 */
 			if (!time_in_range(jiffies,
 				trans_start - delta_in_ticks,
-				trans_start + 2 * delta_in_ticks) ||
+				trans_start + 2 * delta_in_ticks + extra_ticks) ||
 			    !time_in_range(jiffies,
 				slave->dev->last_rx - delta_in_ticks,
-				slave->dev->last_rx + 2 * delta_in_ticks)) {
+				slave->dev->last_rx + 2 * delta_in_ticks + extra_ticks)) {
 
 				slave->link  = BOND_LINK_DOWN;
 				bond_set_backup_slave(slave);
@@ -2935,6 +2934,14 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
 	struct slave *slave;
 	int i, commit = 0;
 	unsigned long trans_start;
+	int extra_ticks;
+
+	/* All the time comparisons below need some extra time. Otherwise, on
+	 * fast networks the ARP probe/reply may arrive within the same jiffy
+	 * as it was sent.  Then, the next time the ARP monitor is run, one
+	 * arp_interval will already have passed in the comparisons.
+	 */
+	extra_ticks = delta_in_ticks / 2;
 
 	bond_for_each_slave(bond, slave, i) {
 		slave->new_link = BOND_LINK_NOCHANGE;
@@ -2942,7 +2949,7 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
 		if (slave->link != BOND_LINK_UP) {
 			if (time_in_range(jiffies,
 				slave_last_rx(bond, slave) - delta_in_ticks,
-				slave_last_rx(bond, slave) + delta_in_ticks)) {
+				slave_last_rx(bond, slave) + delta_in_ticks + extra_ticks)) {
 
 				slave->new_link = BOND_LINK_UP;
 				commit++;
@@ -2958,7 +2965,7 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
 		 */
 		if (time_in_range(jiffies,
 				  slave->jiffies - delta_in_ticks,
-				  slave->jiffies + 2 * delta_in_ticks))
+				  slave->jiffies + 2 * delta_in_ticks + extra_ticks))
 			continue;
 
 		/*
@@ -2978,7 +2985,7 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
 		    !bond->current_arp_slave &&
 		    !time_in_range(jiffies,
 			slave_last_rx(bond, slave) - delta_in_ticks,
-			slave_last_rx(bond, slave) + 3 * delta_in_ticks)) {
+			slave_last_rx(bond, slave) + 3 * delta_in_ticks + extra_ticks)) {
 
 			slave->new_link = BOND_LINK_DOWN;
 			commit++;
@@ -2994,10 +3001,10 @@ static int bond_ab_arp_inspect(struct bonding *bond, int delta_in_ticks)
 		if (bond_is_active_slave(slave) &&
 		    (!time_in_range(jiffies,
 			trans_start - delta_in_ticks,
-			trans_start + 2 * delta_in_ticks) ||
+			trans_start + 2 * delta_in_ticks + extra_ticks) ||
 		     !time_in_range(jiffies,
 			slave_last_rx(bond, slave) - delta_in_ticks,
-			slave_last_rx(bond, slave) + 2 * delta_in_ticks))) {
+			slave_last_rx(bond, slave) + 2 * delta_in_ticks + extra_ticks))) {
 
 			slave->new_link = BOND_LINK_DOWN;
 			commit++;
@@ -3029,7 +3036,7 @@ static void bond_ab_arp_commit(struct bonding *bond, int delta_in_ticks)
 			if ((!bond->curr_active_slave &&
 			     time_in_range(jiffies,
 					   trans_start - delta_in_ticks,
-					   trans_start + delta_in_ticks)) ||
+					   trans_start + delta_in_ticks + delta_in_ticks / 2)) ||
 			    bond->curr_active_slave != slave) {
 				slave->link = BOND_LINK_UP;
 				if (bond->current_arp_slave) {
@@ -3205,7 +3212,7 @@ re_arm:
 			read_unlock(&bond->lock);
 			return;
 		}
-		netdev_bonding_change(bond->dev, NETDEV_NOTIFY_PEERS);
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
 		rtnl_unlock();
 	}
 }
@@ -3354,56 +3361,93 @@ static struct notifier_block bond_netdev_notifier = {
 /*---------------------------- Hashing Policies -----------------------------*/
 
 /*
+ * Hash for the output device based upon layer 2 data
+ */
+static int bond_xmit_hash_policy_l2(struct sk_buff *skb, int count)
+{
+	struct ethhdr *data = (struct ethhdr *)skb->data;
+
+	if (skb_headlen(skb) >= offsetof(struct ethhdr, h_proto))
+		return (data->h_dest[5] ^ data->h_source[5]) % count;
+
+	return 0;
+}
+
+/*
  * Hash for the output device based upon layer 2 and layer 3 data. If
- * the packet is not IP mimic bond_xmit_hash_policy_l2()
+ * the packet is not IP, fall back on bond_xmit_hash_policy_l2()
  */
 static int bond_xmit_hash_policy_l23(struct sk_buff *skb, int count)
 {
 	struct ethhdr *data = (struct ethhdr *)skb->data;
-	struct iphdr *iph = ip_hdr(skb);
-
-	if (skb->protocol == htons(ETH_P_IP)) {
+	struct iphdr *iph;
+	struct ipv6hdr *ipv6h;
+	u32 v6hash;
+	__be32 *s, *d;
+
+	if (skb->protocol == htons(ETH_P_IP) &&
+	    skb_network_header_len(skb) >= sizeof(*iph)) {
+		iph = ip_hdr(skb);
 		return ((ntohl(iph->saddr ^ iph->daddr) & 0xffff) ^
 			(data->h_dest[5] ^ data->h_source[5])) % count;
+	} else if (skb->protocol == htons(ETH_P_IPV6) &&
+		   skb_network_header_len(skb) >= sizeof(*ipv6h)) {
+		ipv6h = ipv6_hdr(skb);
+		s = &ipv6h->saddr.s6_addr32[0];
+		d = &ipv6h->daddr.s6_addr32[0];
+		v6hash = (s[1] ^ d[1]) ^ (s[2] ^ d[2]) ^ (s[3] ^ d[3]);
+		v6hash ^= (v6hash >> 24) ^ (v6hash >> 16) ^ (v6hash >> 8);
+		return (v6hash ^ data->h_dest[5] ^ data->h_source[5]) % count;
 	}
 
-	return (data->h_dest[5] ^ data->h_source[5]) % count;
+	return bond_xmit_hash_policy_l2(skb, count);
 }
 
 /*
  * Hash for the output device based upon layer 3 and layer 4 data. If
  * the packet is a frag or not TCP or UDP, just use layer 3 data.  If it is
- * altogether not IP, mimic bond_xmit_hash_policy_l2()
+ * altogether not IP, fall back on bond_xmit_hash_policy_l2()
  */
 static int bond_xmit_hash_policy_l34(struct sk_buff *skb, int count)
 {
-	struct ethhdr *data = (struct ethhdr *)skb->data;
-	struct iphdr *iph = ip_hdr(skb);
-	__be16 *layer4hdr = (__be16 *)((u32 *)iph + iph->ihl);
-	int layer4_xor = 0;
-
-	if (skb->protocol == htons(ETH_P_IP)) {
+	u32 layer4_xor = 0;
+	struct iphdr *iph;
+	struct ipv6hdr *ipv6h;
+	__be32 *s, *d;
+	__be16 *layer4hdr;
+
+	if (skb->protocol == htons(ETH_P_IP) &&
+	    skb_network_header_len(skb) >= sizeof(*iph)) {
+		iph = ip_hdr(skb);
 		if (!ip_is_fragment(iph) &&
 		    (iph->protocol == IPPROTO_TCP ||
-		     iph->protocol == IPPROTO_UDP)) {
-			layer4_xor = ntohs((*layer4hdr ^ *(layer4hdr + 1)));
+		     iph->protocol == IPPROTO_UDP) &&
+		    (skb_headlen(skb) - skb_network_offset(skb) >=
+		     iph->ihl * sizeof(u32) + sizeof(*layer4hdr) * 2)) {
+			layer4hdr = (__be16 *)((u32 *)iph + iph->ihl);
+			layer4_xor = ntohs(*layer4hdr ^ *(layer4hdr + 1));
 		}
 		return (layer4_xor ^
 			((ntohl(iph->saddr ^ iph->daddr)) & 0xffff)) % count;
-
+	} else if (skb->protocol == htons(ETH_P_IPV6) &&
+		   skb_network_header_len(skb) >= sizeof(*ipv6h)) {
+		ipv6h = ipv6_hdr(skb);
+		if ((ipv6h->nexthdr == IPPROTO_TCP ||
+		     ipv6h->nexthdr == IPPROTO_UDP) &&
+		    (skb_headlen(skb) - skb_network_offset(skb) >=
+		     sizeof(*ipv6h) + sizeof(*layer4hdr) * 2)) {
+			layer4hdr = (__be16 *)(ipv6h + 1);
+			layer4_xor = ntohs(*layer4hdr ^ *(layer4hdr + 1));
+		}
+		s = &ipv6h->saddr.s6_addr32[0];
+		d = &ipv6h->daddr.s6_addr32[0];
+		layer4_xor ^= (s[1] ^ d[1]) ^ (s[2] ^ d[2]) ^ (s[3] ^ d[3]);
+		layer4_xor ^= (layer4_xor >> 24) ^ (layer4_xor >> 16) ^
+			       (layer4_xor >> 8);
+		return layer4_xor % count;
 	}
 
-	return (data->h_dest[5] ^ data->h_source[5]) % count;
-}
-
-/*
- * Hash for the output device based upon layer 2 data
- */
-static int bond_xmit_hash_policy_l2(struct sk_buff *skb, int count)
-{
-	struct ethhdr *data = (struct ethhdr *)skb->data;
-
-	return (data->h_dest[5] ^ data->h_source[5]) % count;
+	return bond_xmit_hash_policy_l2(skb, count);
 }
 
 /*-------------------------- Device entry points ----------------------------*/
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 4c538e38865..e5180dfddba 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -34,6 +34,7 @@
 #include <linux/if_ether.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/can.h>
 #include <linux/can/dev.h>
@@ -45,6 +46,9 @@
 #define IF_ENUM_REG_LEN		11
 #define C_CAN_IFACE(reg, iface)	(C_CAN_IF1_##reg + (iface) * IF_ENUM_REG_LEN)
 
+/* control extension register D_CAN specific */
+#define CONTROL_EX_PDR		BIT(8)
+
 /* control register */
 #define CONTROL_TEST		BIT(7)
 #define CONTROL_CCE		BIT(6)
@@ -64,6 +68,7 @@
 #define TEST_BASIC		BIT(2)
 
 /* status register */
+#define STATUS_PDA		BIT(10)
 #define STATUS_BOFF		BIT(7)
 #define STATUS_EWARN		BIT(6)
 #define STATUS_EPASS		BIT(5)
@@ -163,6 +168,9 @@
 /* minimum timeout for checking BUSY status */
 #define MIN_TIMEOUT_VALUE	6
 
+/* Wait for ~1 sec for INIT bit */
+#define INIT_WAIT_MS		1000
+
 /* napi related */
 #define C_CAN_NAPI_WEIGHT	C_CAN_MSG_OBJ_RX_NUM
 
@@ -201,6 +209,30 @@ static const struct can_bittiming_const c_can_bittiming_const = {
 	.brp_inc = 1,
 };
 
+static inline void c_can_pm_runtime_enable(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_enable(priv->device);
+}
+
+static inline void c_can_pm_runtime_disable(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_disable(priv->device);
+}
+
+static inline void c_can_pm_runtime_get_sync(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_get_sync(priv->device);
+}
+
+static inline void c_can_pm_runtime_put_sync(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_put_sync(priv->device);
+}
+
 static inline int get_tx_next_msg_obj(const struct c_can_priv *priv)
 {
 	return (priv->tx_next & C_CAN_NEXT_MSG_OBJ_MASK) +
@@ -673,11 +705,15 @@ static int c_can_get_berr_counter(const struct net_device *dev,
 	unsigned int reg_err_counter;
 	struct c_can_priv *priv = netdev_priv(dev);
 
+	c_can_pm_runtime_get_sync(priv);
+
 	reg_err_counter = priv->read_reg(priv, C_CAN_ERR_CNT_REG);
 	bec->rxerr = (reg_err_counter & ERR_CNT_REC_MASK) >>
 				ERR_CNT_REC_SHIFT;
 	bec->txerr = reg_err_counter & ERR_CNT_TEC_MASK;
 
+	c_can_pm_runtime_put_sync(priv);
+
 	return 0;
 }
 
@@ -1053,11 +1089,13 @@ static int c_can_open(struct net_device *dev)
 	int err;
 	struct c_can_priv *priv = netdev_priv(dev);
 
+	c_can_pm_runtime_get_sync(priv);
+
 	/* open the can device */
 	err = open_candev(dev);
 	if (err) {
 		netdev_err(dev, "failed to open can device\n");
-		return err;
+		goto exit_open_fail;
 	}
 
 	/* register interrupt handler */
@@ -1079,6 +1117,8 @@ static int c_can_open(struct net_device *dev)
 
 exit_irq_fail:
 	close_candev(dev);
+exit_open_fail:
+	c_can_pm_runtime_put_sync(priv);
 	return err;
 }
 
@@ -1091,6 +1131,7 @@ static int c_can_close(struct net_device *dev)
 	c_can_stop(dev);
 	free_irq(dev->irq, dev);
 	close_candev(dev);
+	c_can_pm_runtime_put_sync(priv);
 
 	return 0;
 }
@@ -1119,6 +1160,77 @@ struct net_device *alloc_c_can_dev(void)
 }
 EXPORT_SYMBOL_GPL(alloc_c_can_dev);
 
+#ifdef CONFIG_PM
+int c_can_power_down(struct net_device *dev)
+{
+	u32 val;
+	unsigned long time_out;
+	struct c_can_priv *priv = netdev_priv(dev);
+
+	if (!(dev->flags & IFF_UP))
+		return 0;
+
+	WARN_ON(priv->type != BOSCH_D_CAN);
+
+	/* set PDR value so the device goes to power down mode */
+	val = priv->read_reg(priv, C_CAN_CTRL_EX_REG);
+	val |= CONTROL_EX_PDR;
+	priv->write_reg(priv, C_CAN_CTRL_EX_REG, val);
+
+	/* Wait for the PDA bit to get set */
+	time_out = jiffies + msecs_to_jiffies(INIT_WAIT_MS);
+	while (!(priv->read_reg(priv, C_CAN_STS_REG) & STATUS_PDA) &&
+				time_after(time_out, jiffies))
+		cpu_relax();
+
+	if (time_after(jiffies, time_out))
+		return -ETIMEDOUT;
+
+	c_can_stop(dev);
+
+	c_can_pm_runtime_put_sync(priv);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(c_can_power_down);
+
+int c_can_power_up(struct net_device *dev)
+{
+	u32 val;
+	unsigned long time_out;
+	struct c_can_priv *priv = netdev_priv(dev);
+
+	if (!(dev->flags & IFF_UP))
+		return 0;
+
+	WARN_ON(priv->type != BOSCH_D_CAN);
+
+	c_can_pm_runtime_get_sync(priv);
+
+	/* Clear PDR and INIT bits */
+	val = priv->read_reg(priv, C_CAN_CTRL_EX_REG);
+	val &= ~CONTROL_EX_PDR;
+	priv->write_reg(priv, C_CAN_CTRL_EX_REG, val);
+	val = priv->read_reg(priv, C_CAN_CTRL_REG);
+	val &= ~CONTROL_INIT;
+	priv->write_reg(priv, C_CAN_CTRL_REG, val);
+
+	/* Wait for the PDA bit to get clear */
+	time_out = jiffies + msecs_to_jiffies(INIT_WAIT_MS);
+	while ((priv->read_reg(priv, C_CAN_STS_REG) & STATUS_PDA) &&
+				time_after(time_out, jiffies))
+		cpu_relax();
+
+	if (time_after(jiffies, time_out))
+		return -ETIMEDOUT;
+
+	c_can_start(dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(c_can_power_up);
+#endif
+
 void free_c_can_dev(struct net_device *dev)
 {
 	free_candev(dev);
@@ -1133,10 +1245,19 @@ static const struct net_device_ops c_can_netdev_ops = {
 
 int register_c_can_dev(struct net_device *dev)
 {
+	struct c_can_priv *priv = netdev_priv(dev);
+	int err;
+
+	c_can_pm_runtime_enable(priv);
+
 	dev->flags |= IFF_ECHO;	/* we support local echo */
 	dev->netdev_ops = &c_can_netdev_ops;
 
-	return register_candev(dev);
+	err = register_candev(dev);
+	if (err)
+		c_can_pm_runtime_disable(priv);
+
+	return err;
 }
 EXPORT_SYMBOL_GPL(register_c_can_dev);
 
@@ -1144,10 +1265,9 @@ void unregister_c_can_dev(struct net_device *dev)
 {
 	struct c_can_priv *priv = netdev_priv(dev);
 
-	/* disable all interrupts */
-	c_can_enable_all_interrupts(priv, DISABLE_ALL_INTERRUPTS);
-
 	unregister_candev(dev);
+
+	c_can_pm_runtime_disable(priv);
 }
 EXPORT_SYMBOL_GPL(unregister_c_can_dev);
 
diff --git a/drivers/net/can/c_can/c_can.h b/drivers/net/can/c_can/c_can.h
index 01a7049ab99..e5ed41dafa1 100644
--- a/drivers/net/can/c_can/c_can.h
+++ b/drivers/net/can/c_can/c_can.h
@@ -24,6 +24,7 @@
 
 enum reg {
 	C_CAN_CTRL_REG = 0,
+	C_CAN_CTRL_EX_REG,
 	C_CAN_STS_REG,
 	C_CAN_ERR_CNT_REG,
 	C_CAN_BTR_REG,
@@ -104,6 +105,7 @@ static const u16 reg_map_c_can[] = {
 
 static const u16 reg_map_d_can[] = {
 	[C_CAN_CTRL_REG]	= 0x00,
+	[C_CAN_CTRL_EX_REG]	= 0x02,
 	[C_CAN_STS_REG]		= 0x04,
 	[C_CAN_ERR_CNT_REG]	= 0x08,
 	[C_CAN_BTR_REG]		= 0x0C,
@@ -143,8 +145,9 @@ static const u16 reg_map_d_can[] = {
 };
 
 enum c_can_dev_id {
-	C_CAN_DEVTYPE,
-	D_CAN_DEVTYPE,
+	BOSCH_C_CAN_PLATFORM,
+	BOSCH_C_CAN,
+	BOSCH_D_CAN,
 };
 
 /* c_can private data structure */
@@ -152,6 +155,7 @@ struct c_can_priv {
 	struct can_priv can;	/* must be the first member */
 	struct napi_struct napi;
 	struct net_device *dev;
+	struct device *device;
 	int tx_object;
 	int current_status;
 	int last_status;
@@ -164,6 +168,7 @@ struct c_can_priv {
 	unsigned int tx_echo;
 	void *priv;		/* for board-specific data */
 	u16 irqstatus;
+	enum c_can_dev_id type;
 };
 
 struct net_device *alloc_c_can_dev(void);
@@ -171,4 +176,9 @@ void free_c_can_dev(struct net_device *dev);
 int register_c_can_dev(struct net_device *dev);
 void unregister_c_can_dev(struct net_device *dev);
 
+#ifdef CONFIG_PM
+int c_can_power_up(struct net_device *dev);
+int c_can_power_down(struct net_device *dev);
+#endif
+
 #endif /* C_CAN_H */
diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c
index 1011146ea51..3d7830bcd2b 100644
--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -120,10 +120,10 @@ static int __devinit c_can_pci_probe(struct pci_dev *pdev,
 
 	/* Configure CAN type */
 	switch (c_can_pci_data->type) {
-	case C_CAN_DEVTYPE:
+	case BOSCH_C_CAN:
 		priv->regs = reg_map_c_can;
 		break;
-	case D_CAN_DEVTYPE:
+	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
 		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		break;
@@ -192,7 +192,7 @@ static void __devexit c_can_pci_remove(struct pci_dev *pdev)
 }
 
 static struct c_can_pci_data c_can_sta2x11= {
-	.type = C_CAN_DEVTYPE,
+	.type = BOSCH_C_CAN,
 	.reg_align = C_CAN_REG_ALIGN_32,
 	.freq = 52000000, /* 52 Mhz */
 };
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 6ff7ad006c3..ee1416132ab 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -30,6 +30,9 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
 
 #include <linux/can/dev.h>
 
@@ -65,17 +68,58 @@ static void c_can_plat_write_reg_aligned_to_32bit(struct c_can_priv *priv,
 	writew(val, priv->base + 2 * priv->regs[index]);
 }
 
+static struct platform_device_id c_can_id_table[] = {
+	[BOSCH_C_CAN_PLATFORM] = {
+		.name = KBUILD_MODNAME,
+		.driver_data = BOSCH_C_CAN,
+	},
+	[BOSCH_C_CAN] = {
+		.name = "c_can",
+		.driver_data = BOSCH_C_CAN,
+	},
+	[BOSCH_D_CAN] = {
+		.name = "d_can",
+		.driver_data = BOSCH_D_CAN,
+	}, {
+	}
+};
+
+static const struct of_device_id c_can_of_table[] = {
+	{ .compatible = "bosch,c_can", .data = &c_can_id_table[BOSCH_C_CAN] },
+	{ .compatible = "bosch,d_can", .data = &c_can_id_table[BOSCH_D_CAN] },
+	{ /* sentinel */ },
+};
+
 static int __devinit c_can_plat_probe(struct platform_device *pdev)
 {
 	int ret;
 	void __iomem *addr;
 	struct net_device *dev;
 	struct c_can_priv *priv;
+	const struct of_device_id *match;
 	const struct platform_device_id *id;
+	struct pinctrl *pinctrl;
 	struct resource *mem;
 	int irq;
 	struct clk *clk;
 
+	if (pdev->dev.of_node) {
+		match = of_match_device(c_can_of_table, &pdev->dev);
+		if (!match) {
+			dev_err(&pdev->dev, "Failed to find matching dt id\n");
+			ret = -EINVAL;
+			goto exit;
+		}
+		id = match->data;
+	} else {
+		id = platform_get_device_id(pdev);
+	}
+
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(pinctrl))
+		dev_warn(&pdev->dev,
+			"failed to configure pins from driver\n");
+
 	/* get the appropriate clk */
 	clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(clk)) {
@@ -114,9 +158,8 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 	}
 
 	priv = netdev_priv(dev);
-	id = platform_get_device_id(pdev);
 	switch (id->driver_data) {
-	case C_CAN_DEVTYPE:
+	case BOSCH_C_CAN:
 		priv->regs = reg_map_c_can;
 		switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
 		case IORESOURCE_MEM_32BIT:
@@ -130,7 +173,7 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 			break;
 		}
 		break;
-	case D_CAN_DEVTYPE:
+	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
 		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		priv->read_reg = c_can_plat_read_reg_aligned_to_16bit;
@@ -143,8 +186,10 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 
 	dev->irq = irq;
 	priv->base = addr;
+	priv->device = &pdev->dev;
 	priv->can.clock.freq = clk_get_rate(clk);
 	priv->priv = clk;
+	priv->type = id->driver_data;
 
 	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
@@ -195,27 +240,75 @@ static int __devexit c_can_plat_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct platform_device_id c_can_id_table[] = {
-	{
-		.name = KBUILD_MODNAME,
-		.driver_data = C_CAN_DEVTYPE,
-	}, {
-		.name = "c_can",
-		.driver_data = C_CAN_DEVTYPE,
-	}, {
-		.name = "d_can",
-		.driver_data = D_CAN_DEVTYPE,
-	}, {
+#ifdef CONFIG_PM
+static int c_can_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	int ret;
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct c_can_priv *priv = netdev_priv(ndev);
+
+	if (priv->type != BOSCH_D_CAN) {
+		dev_warn(&pdev->dev, "Not supported\n");
+		return 0;
 	}
-};
+
+	if (netif_running(ndev)) {
+		netif_stop_queue(ndev);
+		netif_device_detach(ndev);
+	}
+
+	ret = c_can_power_down(ndev);
+	if (ret) {
+		netdev_err(ndev, "failed to enter power down mode\n");
+		return ret;
+	}
+
+	priv->can.state = CAN_STATE_SLEEPING;
+
+	return 0;
+}
+
+static int c_can_resume(struct platform_device *pdev)
+{
+	int ret;
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct c_can_priv *priv = netdev_priv(ndev);
+
+	if (priv->type != BOSCH_D_CAN) {
+		dev_warn(&pdev->dev, "Not supported\n");
+		return 0;
+	}
+
+	ret = c_can_power_up(ndev);
+	if (ret) {
+		netdev_err(ndev, "Still in power down mode\n");
+		return ret;
+	}
+
+	priv->can.state = CAN_STATE_ERROR_ACTIVE;
+
+	if (netif_running(ndev)) {
+		netif_device_attach(ndev);
+		netif_start_queue(ndev);
+	}
+
+	return 0;
+}
+#else
+#define c_can_suspend NULL
+#define c_can_resume NULL
+#endif
 
 static struct platform_driver c_can_plat_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(c_can_of_table),
 	},
 	.probe = c_can_plat_probe,
 	.remove = __devexit_p(c_can_plat_remove),
+	.suspend = c_can_suspend,
+	.resume = c_can_resume,
 	.id_table = c_can_id_table,
 };
 
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index c5f143165f8..c78ecfca1e4 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -144,6 +144,10 @@
 
 #define FLEXCAN_MB_CODE_MASK		(0xf0ffffff)
 
+/* FLEXCAN hardware feature flags */
+#define FLEXCAN_HAS_V10_FEATURES	BIT(1) /* For core version >= 10 */
+#define FLEXCAN_HAS_BROKEN_ERR_STATE	BIT(2) /* Broken error state handling */
+
 /* Structure of the message buffer */
 struct flexcan_mb {
 	u32 can_ctrl;
@@ -178,7 +182,7 @@ struct flexcan_regs {
 };
 
 struct flexcan_devtype_data {
-	u32 hw_ver;	/* hardware controller version */
+	u32 features;	/* hardware controller features */
 };
 
 struct flexcan_priv {
@@ -197,11 +201,11 @@ struct flexcan_priv {
 };
 
 static struct flexcan_devtype_data fsl_p1010_devtype_data = {
-	.hw_ver = 3,
+	.features = FLEXCAN_HAS_BROKEN_ERR_STATE,
 };
-
+static struct flexcan_devtype_data fsl_imx28_devtype_data;
 static struct flexcan_devtype_data fsl_imx6q_devtype_data = {
-	.hw_ver = 10,
+	.features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_BROKEN_ERR_STATE,
 };
 
 static const struct can_bittiming_const flexcan_bittiming_const = {
@@ -741,15 +745,19 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * enable tx and rx warning interrupt
 	 * enable bus off interrupt
 	 * (== FLEXCAN_CTRL_ERR_STATE)
-	 *
-	 * _note_: we enable the "error interrupt"
-	 * (FLEXCAN_CTRL_ERR_MSK), too. Otherwise we don't get any
-	 * warning or bus passive interrupts.
 	 */
 	reg_ctrl = flexcan_read(&regs->ctrl);
 	reg_ctrl &= ~FLEXCAN_CTRL_TSYN;
 	reg_ctrl |= FLEXCAN_CTRL_BOFF_REC | FLEXCAN_CTRL_LBUF |
-		FLEXCAN_CTRL_ERR_STATE | FLEXCAN_CTRL_ERR_MSK;
+		FLEXCAN_CTRL_ERR_STATE;
+	/*
+	 * enable the "error interrupt" (FLEXCAN_CTRL_ERR_MSK),
+	 * on most Flexcan cores, too. Otherwise we don't get
+	 * any error warning or passive interrupts.
+	 */
+	if (priv->devtype_data->features & FLEXCAN_HAS_BROKEN_ERR_STATE ||
+	    priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
+		reg_ctrl |= FLEXCAN_CTRL_ERR_MSK;
 
 	/* save for later use */
 	priv->reg_ctrl_default = reg_ctrl;
@@ -772,7 +780,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	flexcan_write(0x0, &regs->rx14mask);
 	flexcan_write(0x0, &regs->rx15mask);
 
-	if (priv->devtype_data->hw_ver >= 10)
+	if (priv->devtype_data->features & FLEXCAN_HAS_V10_FEATURES)
 		flexcan_write(0x0, &regs->rxfgmask);
 
 	flexcan_transceiver_switch(priv, 1);
@@ -954,6 +962,7 @@ static void __devexit unregister_flexcandev(struct net_device *dev)
 
 static const struct of_device_id flexcan_of_match[] = {
 	{ .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
+	{ .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
 	{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
 	{ /* sentinel */ },
 };
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
index 98ee4381991..7edadee487b 100644
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -1391,7 +1391,6 @@ static irqreturn_t ican3_irq(int irq, void *dev_id)
  */
 static int ican3_reset_module(struct ican3_dev *mod)
 {
-	u8 val = 1 << mod->num;
 	unsigned long start;
 	u8 runold, runnew;
 
@@ -1405,8 +1404,7 @@ static int ican3_reset_module(struct ican3_dev *mod)
 	runold = ioread8(mod->dpm + TARGET_RUNNING);
 
 	/* reset the module */
-	iowrite8(val, &mod->ctrl->reset_assert);
-	iowrite8(val, &mod->ctrl->reset_deassert);
+	iowrite8(0x00, &mod->dpmctrl->hwreset);
 
 	/* wait until the module has finished resetting and is running */
 	start = jiffies;
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c
index a580db29e50..26e7129332a 100644
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -83,6 +83,11 @@
 #define INSTRUCTION_LOAD_TXB(n)	(0x40 + 2 * (n))
 #define INSTRUCTION_READ_RXB(n)	(((n) == 0) ? 0x90 : 0x94)
 #define INSTRUCTION_RESET	0xC0
+#define RTS_TXB0		0x01
+#define RTS_TXB1		0x02
+#define RTS_TXB2		0x04
+#define INSTRUCTION_RTS(n)	(0x80 | ((n) & 0x07))
+
 
 /* MPC251x registers */
 #define CANSTAT	      0x0e
@@ -397,6 +402,7 @@ static void mcp251x_hw_tx_frame(struct spi_device *spi, u8 *buf,
 static void mcp251x_hw_tx(struct spi_device *spi, struct can_frame *frame,
 			  int tx_buf_idx)
 {
+	struct mcp251x_priv *priv = dev_get_drvdata(&spi->dev);
 	u32 sid, eid, exide, rtr;
 	u8 buf[SPI_TRANSFER_BUF_LEN];
 
@@ -418,7 +424,10 @@ static void mcp251x_hw_tx(struct spi_device *spi, struct can_frame *frame,
 	buf[TXBDLC_OFF] = (rtr << DLC_RTR_SHIFT) | frame->can_dlc;
 	memcpy(buf + TXBDAT_OFF, frame->data, frame->can_dlc);
 	mcp251x_hw_tx_frame(spi, buf, frame->can_dlc, tx_buf_idx);
-	mcp251x_write_reg(spi, TXBCTRL(tx_buf_idx), TXBCTRL_TXREQ);
+
+	/* use INSTRUCTION_RTS, to avoid "repeated frame problem" */
+	priv->spi_tx_buf[0] = INSTRUCTION_RTS(1 << tx_buf_idx);
+	mcp251x_spi_trans(priv->spi, 1);
 }
 
 static void mcp251x_hw_rx_frame(struct spi_device *spi, u8 *buf,
diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index 06adf881ea2..c975999bb05 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -181,7 +181,7 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev,
 
 		if (!clock_name || !strcmp(clock_name, "sys")) {
 			sys_clk = clk_get(&ofdev->dev, "sys_clk");
-			if (!sys_clk) {
+			if (IS_ERR(sys_clk)) {
 				dev_err(&ofdev->dev, "couldn't get sys_clk\n");
 				goto exit_unmap;
 			}
@@ -204,7 +204,7 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev,
 
 		if (clocksrc < 0) {
 			ref_clk = clk_get(&ofdev->dev, "ref_clk");
-			if (!ref_clk) {
+			if (IS_ERR(ref_clk)) {
 				dev_err(&ofdev->dev, "couldn't get ref_clk\n");
 				goto exit_unmap;
 			}
@@ -380,12 +380,12 @@ static int mpc5xxx_can_resume(struct platform_device *ofdev)
 }
 #endif
 
-static struct mpc5xxx_can_data __devinitdata mpc5200_can_data = {
+static const struct mpc5xxx_can_data __devinitdata mpc5200_can_data = {
 	.type = MSCAN_TYPE_MPC5200,
 	.get_clock = mpc52xx_can_get_clock,
 };
 
-static struct mpc5xxx_can_data __devinitdata mpc5121_can_data = {
+static const struct mpc5xxx_can_data __devinitdata mpc5121_can_data = {
 	.type = MSCAN_TYPE_MPC5121,
 	.get_clock = mpc512x_can_get_clock,
 };
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 4c4f33d482d..25011dbe1b9 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -156,8 +156,13 @@ static void set_normal_mode(struct net_device *dev)
 		}
 
 		/* set chip to normal mode */
-		priv->write_reg(priv, REG_MOD, 0x00);
+		if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
+			priv->write_reg(priv, REG_MOD, MOD_LOM);
+		else
+			priv->write_reg(priv, REG_MOD, 0x00);
+
 		udelay(10);
+
 		status = priv->read_reg(priv, REG_MOD);
 	}
 
@@ -310,7 +315,10 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb,
 
 	can_put_echo_skb(skb, dev, 0);
 
-	sja1000_write_cmdreg(priv, CMD_TR);
+	if (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT)
+		sja1000_write_cmdreg(priv, CMD_TR | CMD_AT);
+	else
+		sja1000_write_cmdreg(priv, CMD_TR);
 
 	return NETDEV_TX_OK;
 }
@@ -505,10 +513,18 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id)
 			netdev_warn(dev, "wakeup interrupt\n");
 
 		if (isrc & IRQ_TI) {
-			/* transmission complete interrupt */
-			stats->tx_bytes += priv->read_reg(priv, REG_FI) & 0xf;
-			stats->tx_packets++;
-			can_get_echo_skb(dev, 0);
+			/* transmission buffer released */
+			if (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT &&
+			    !(status & SR_TCS)) {
+				stats->tx_errors++;
+				can_free_echo_skb(dev, 0);
+			} else {
+				/* transmission complete */
+				stats->tx_bytes +=
+					priv->read_reg(priv, REG_FI) & 0xf;
+				stats->tx_packets++;
+				can_get_echo_skb(dev, 0);
+			}
 			netif_wake_queue(dev);
 		}
 		if (isrc & IRQ_RI) {
@@ -605,7 +621,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv)
 	priv->can.do_set_mode = sja1000_set_mode;
 	priv->can.do_get_berr_counter = sja1000_get_berr_counter;
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
-		CAN_CTRLMODE_BERR_REPORTING;
+		CAN_CTRLMODE_BERR_REPORTING | CAN_CTRLMODE_LISTENONLY |
+		CAN_CTRLMODE_ONE_SHOT;
 
 	spin_lock_init(&priv->cmdreg_lock);
 
diff --git a/drivers/net/can/sja1000/sja1000_platform.c b/drivers/net/can/sja1000/sja1000_platform.c
index 4f50145f648..662c5f7eb0c 100644
--- a/drivers/net/can/sja1000/sja1000_platform.c
+++ b/drivers/net/can/sja1000/sja1000_platform.c
@@ -109,7 +109,9 @@ static int sp_probe(struct platform_device *pdev)
 	priv = netdev_priv(dev);
 
 	dev->irq = res_irq->start;
-	priv->irq_flags = res_irq->flags & (IRQF_TRIGGER_MASK | IRQF_SHARED);
+	priv->irq_flags = res_irq->flags & IRQF_TRIGGER_MASK;
+	if (res_irq->flags & IORESOURCE_IRQ_SHAREABLE)
+		priv->irq_flags |= IRQF_SHARED;
 	priv->reg_base = addr;
 	/* The CAN clock frequency is half the oscillator clock frequency */
 	priv->can.clock.freq = pdata->osc_freq / 2;
diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c
index 31059617567..b595d3422b9 100644
--- a/drivers/net/can/softing/softing_fw.c
+++ b/drivers/net/can/softing/softing_fw.c
@@ -150,7 +150,7 @@ int softing_load_fw(const char *file, struct softing *card,
 	const uint8_t *mem, *end, *dat;
 	uint16_t type, len;
 	uint32_t addr;
-	uint8_t *buf = NULL;
+	uint8_t *buf = NULL, *new_buf;
 	int buflen = 0;
 	int8_t type_end = 0;
 
@@ -199,11 +199,12 @@ int softing_load_fw(const char *file, struct softing *card,
 		if (len > buflen) {
 			/* align buflen */
 			buflen = (len + (1024-1)) & ~(1024-1);
-			buf = krealloc(buf, buflen, GFP_KERNEL);
-			if (!buf) {
+			new_buf = krealloc(buf, buflen, GFP_KERNEL);
+			if (!new_buf) {
 				ret = -ENOMEM;
 				goto failed;
 			}
+			buf = new_buf;
 		}
 		/* verify record data */
 		memcpy_fromio(buf, &dpram[addr + offset], len);
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 527dbcf9533..9ded21e79db 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -984,12 +984,12 @@ static int __devexit ti_hecc_remove(struct platform_device *pdev)
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct ti_hecc_priv *priv = netdev_priv(ndev);
 
+	unregister_candev(ndev);
 	clk_disable(priv->clk);
 	clk_put(priv->clk);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	iounmap(priv->base);
 	release_mem_region(res->start, resource_size(res));
-	unregister_candev(ndev);
 	free_candev(ndev);
 	platform_set_drvdata(pdev, NULL);
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index d2f91f73787..c4643c400d4 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -53,7 +53,7 @@ static struct peak_usb_adapter *peak_usb_adapters_list[] = {
  * dump memory
  */
 #define DUMP_WIDTH	16
-void dump_mem(char *prompt, void *p, int l)
+void pcan_dump_mem(char *prompt, void *p, int l)
 {
 	pr_info("%s dumping %s (%d bytes):\n",
 		PCAN_USB_DRIVER_NAME, prompt ? prompt : "memory", l);
@@ -203,9 +203,9 @@ static void peak_usb_read_bulk_callback(struct urb *urb)
 		if (dev->state & PCAN_USB_STATE_STARTED) {
 			err = dev->adapter->dev_decode_buf(dev, urb);
 			if (err)
-				dump_mem("received usb message",
-					urb->transfer_buffer,
-					urb->transfer_buffer_length);
+				pcan_dump_mem("received usb message",
+					      urb->transfer_buffer,
+					      urb->transfer_buffer_length);
 		}
 	}
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.h b/drivers/net/can/usb/peak_usb/pcan_usb_core.h
index 4c775b620be..c8e5e91d7cb 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.h
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.h
@@ -131,7 +131,7 @@ struct peak_usb_device {
 	struct peak_usb_device *next_siblings;
 };
 
-void dump_mem(char *prompt, void *p, int l);
+void pcan_dump_mem(char *prompt, void *p, int l);
 
 /* common timestamp management */
 void peak_usb_init_time_ref(struct peak_time_ref *time_ref,
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index 629c4ba5d49..e1626d92511 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -292,8 +292,8 @@ static int pcan_usb_pro_wait_rsp(struct peak_usb_device *dev,
 			if (!rec_len) {
 				netdev_err(dev->netdev,
 					   "got unprocessed record in msg\n");
-				dump_mem("rcvd rsp msg", pum->u.rec_buffer,
-					 actual_length);
+				pcan_dump_mem("rcvd rsp msg", pum->u.rec_buffer,
+					      actual_length);
 				break;
 			}
 
@@ -756,8 +756,8 @@ static int pcan_usb_pro_decode_buf(struct peak_usb_device *dev, struct urb *urb)
 
 fail:
 	if (err)
-		dump_mem("received msg",
-			 urb->transfer_buffer, urb->actual_length);
+		pcan_dump_mem("received msg",
+			      urb->transfer_buffer, urb->actual_length);
 
 	return err;
 }
diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
index f0c8bd54ce2..021d69c5d9b 100644
--- a/drivers/net/cris/eth_v10.c
+++ b/drivers/net/cris/eth_v10.c
@@ -1712,7 +1712,7 @@ e100_set_network_leds(int active)
 static void
 e100_netpoll(struct net_device* netdev)
 {
-	e100rxtx_interrupt(NETWORK_DMA_TX_IRQ_NBR, netdev, NULL);
+	e100rxtx_interrupt(NETWORK_DMA_TX_IRQ_NBR, netdev);
 }
 #endif
 
diff --git a/drivers/net/ethernet/3com/typhoon.c b/drivers/net/ethernet/3com/typhoon.c
index b1536663514..bb9670f29b5 100644
--- a/drivers/net/ethernet/3com/typhoon.c
+++ b/drivers/net/ethernet/3com/typhoon.c
@@ -364,7 +364,7 @@ typhoon_inc_rxfree_index(u32 *index, const int count)
 static inline void
 typhoon_inc_tx_index(u32 *index, const int count)
 {
-	/* if we start using the Hi Tx ring, this needs updateing */
+	/* if we start using the Hi Tx ring, this needs updating */
 	typhoon_inc_index(index, count, TXLO_ENTRIES);
 }
 
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index a11af5cc484..e4ff3894911 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -89,15 +89,6 @@ source "drivers/net/ethernet/marvell/Kconfig"
 source "drivers/net/ethernet/mellanox/Kconfig"
 source "drivers/net/ethernet/micrel/Kconfig"
 source "drivers/net/ethernet/microchip/Kconfig"
-
-config MIPS_SIM_NET
-	tristate "MIPS simulator Network device"
-	depends on MIPS_SIM
-	---help---
-	  The MIPSNET device is a simple Ethernet network device which is
-	  emulated by the MIPS Simulator.
-	  If you are not using a MIPSsim or are unsure, say N.
-
 source "drivers/net/ethernet/myricom/Kconfig"
 
 config FEALNX
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 878ad32b93f..d4473072654 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -40,7 +40,6 @@ obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/
 obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
 obj-$(CONFIG_NET_VENDOR_MICREL) += micrel/
 obj-$(CONFIG_NET_VENDOR_MICROCHIP) += microchip/
-obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o
 obj-$(CONFIG_NET_VENDOR_MYRI) += myricom/
 obj-$(CONFIG_FEALNX) += fealnx.o
 obj-$(CONFIG_NET_VENDOR_NATSEMI) += natsemi/
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 1bf5bbfe778..55a2e379505 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -149,7 +149,7 @@ static void atl1c_reset_pcie(struct atl1c_hw *hw, u32 flag)
 	data &= ~(PCI_ERR_UNC_DLP | PCI_ERR_UNC_FCP);
 	pci_write_config_dword(pdev, pos + PCI_ERR_UNCOR_SEVER, data);
 	/* clear error status */
-	pci_write_config_word(pdev, pci_pcie_cap(pdev) + PCI_EXP_DEVSTA,
+	pcie_capability_write_word(pdev, PCI_EXP_DEVSTA,
 			PCI_EXP_DEVSTA_NFED |
 			PCI_EXP_DEVSTA_FED |
 			PCI_EXP_DEVSTA_CED |
@@ -2685,7 +2685,7 @@ static void atl1c_io_resume(struct pci_dev *pdev)
 	netif_device_attach(netdev);
 }
 
-static struct pci_error_handlers atl1c_err_handler = {
+static const struct pci_error_handlers atl1c_err_handler = {
 	.error_detected = atl1c_io_error_detected,
 	.slot_reset = atl1c_io_slot_reset,
 	.resume = atl1c_io_resume,
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index a98acc8a956..e213da29e73 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -2489,7 +2489,7 @@ static void atl1e_io_resume(struct pci_dev *pdev)
 	netif_device_attach(netdev);
 }
 
-static struct pci_error_handlers atl1e_err_handler = {
+static const struct pci_error_handlers atl1e_err_handler = {
 	.error_detected = atl1e_io_error_detected,
 	.slot_reset = atl1e_io_slot_reset,
 	.resume = atl1e_io_resume,
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index f15e72e81ac..4bd416b72e6 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -101,6 +101,7 @@ config TIGON3
 	tristate "Broadcom Tigon3 support"
 	depends on PCI
 	select PHYLIB
+	select HWMON
 	---help---
 	  This driver supports Broadcom Tigon3 based gigabit Ethernet cards.
 
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 79cebd8525c..d4310700c7a 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8564,7 +8564,7 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return 0;
 
 error:
-	iounmap(bp->regview);
+	pci_iounmap(pdev, bp->regview);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);
@@ -8742,7 +8742,7 @@ static void bnx2_io_resume(struct pci_dev *pdev)
 	rtnl_unlock();
 }
 
-static struct pci_error_handlers bnx2_err_handler = {
+static const struct pci_error_handlers bnx2_err_handler = {
 	.error_detected	= bnx2_io_error_detected,
 	.slot_reset	= bnx2_io_slot_reset,
 	.resume		= bnx2_io_resume,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 77bcd4cb4ff..72897c47b8c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -23,8 +23,8 @@
  * (you will need to reboot afterwards) */
 /* #define BNX2X_STOP_ON_ERROR */
 
-#define DRV_MODULE_VERSION      "1.72.51-0"
-#define DRV_MODULE_RELDATE      "2012/06/18"
+#define DRV_MODULE_VERSION      "1.78.00-0"
+#define DRV_MODULE_RELDATE      "2012/09/27"
 #define BNX2X_BC_VER            0x040200
 
 #if defined(CONFIG_DCB)
@@ -1278,7 +1278,7 @@ struct bnx2x {
 #define BNX2X_FW_RX_ALIGN_START	(1UL << BNX2X_RX_ALIGN_SHIFT)
 
 #define BNX2X_FW_RX_ALIGN_END					\
-	max(1UL << BNX2X_RX_ALIGN_SHIFT, 			\
+	max_t(u64, 1UL << BNX2X_RX_ALIGN_SHIFT,			\
 	    SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
 
 #define BNX2X_PXP_DRAM_ALIGN		(BNX2X_RX_ALIGN_SHIFT - 5)
@@ -1458,7 +1458,7 @@ struct bnx2x {
 	int				fw_stats_req_sz;
 
 	/*
-	 * FW statistics data shortcut (points at the begining of
+	 * FW statistics data shortcut (points at the beginning of
 	 * fw_stats buffer + fw_stats_req_sz).
 	 */
 	struct bnx2x_fw_stats_data	*fw_stats_data;
@@ -1708,9 +1708,6 @@ struct bnx2x_func_init_params {
 			continue;		\
 		else
 
-#define for_each_napi_rx_queue(bp, var) \
-	for ((var) = 0; (var) < bp->num_napi_queues; (var)++)
-
 /* Skip OOO FP */
 #define for_each_tx_queue(bp, var) \
 	for ((var) = 0; (var) < BNX2X_NUM_QUEUES(bp); (var)++) \
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index e879e19eb0d..30f04a38922 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -662,14 +662,16 @@ void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe,
 				 struct bnx2x_fastpath *fp,
 				 struct bnx2x_eth_q_stats *qstats)
 {
-	/* Do nothing if no IP/L4 csum validation was done */
-
+	/* Do nothing if no L4 csum validation was done.
+	 * We do not check whether IP csum was validated. For IPv4 we assume
+	 * that if the card got as far as validating the L4 csum, it also
+	 * validated the IP csum. IPv6 has no IP csum.
+	 */
 	if (cqe->fast_path_cqe.status_flags &
-	    (ETH_FAST_PATH_RX_CQE_IP_XSUM_NO_VALIDATION_FLG |
-	     ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG))
+	    ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG)
 		return;
 
-	/* If both IP/L4 validation were done, check if an error was found. */
+	/* If L4 validation was done, check if an error was found. */
 
 	if (cqe->fast_path_cqe.type_error_flags &
 	    (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG |
@@ -2046,6 +2048,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	 */
 	bnx2x_setup_tc(bp->dev, bp->max_cos);
 
+	/* Add all NAPI objects */
+	bnx2x_add_all_napi(bp);
 	bnx2x_napi_enable(bp);
 
 	/* set pf load just before approaching the MCP */
@@ -2281,7 +2285,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	/* Wait for all pending SP commands to complete */
 	if (!bnx2x_wait_sp_comp(bp, ~0x0UL)) {
 		BNX2X_ERR("Timeout waiting for SP elements to complete\n");
-		bnx2x_nic_unload(bp, UNLOAD_CLOSE);
+		bnx2x_nic_unload(bp, UNLOAD_CLOSE, false);
 		return -EBUSY;
 	}
 
@@ -2329,7 +2333,7 @@ load_error0:
 }
 
 /* must be called with rtnl_lock */
-int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
+int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 {
 	int i;
 	bool global = false;
@@ -2391,7 +2395,7 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
 	/* Cleanup the chip if needed */
 	if (unload_mode != UNLOAD_RECOVERY)
-		bnx2x_chip_cleanup(bp, unload_mode);
+		bnx2x_chip_cleanup(bp, unload_mode, keep_link);
 	else {
 		/* Send the UNLOAD_REQUEST to the MCP */
 		bnx2x_send_unload_req(bp, unload_mode);
@@ -2408,12 +2412,14 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
 		/* Disable HW interrupts, NAPI */
 		bnx2x_netif_stop(bp, 1);
+		/* Delete all NAPI objects */
+		bnx2x_del_all_napi(bp);
 
 		/* Release IRQs */
 		bnx2x_free_irq(bp);
 
 		/* Report UNLOAD_DONE to MCP */
-		bnx2x_send_unload_done(bp);
+		bnx2x_send_unload_done(bp, false);
 	}
 
 	/*
@@ -3020,8 +3026,9 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	first_bd = tx_start_bd;
 
 	tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
-	SET_FLAG(tx_start_bd->general_data, ETH_TX_START_BD_ETH_ADDR_TYPE,
-		 mac_type);
+	SET_FLAG(tx_start_bd->general_data,
+		 ETH_TX_START_BD_PARSE_NBDS,
+		 0);
 
 	/* header nbd */
 	SET_FLAG(tx_start_bd->general_data, ETH_TX_START_BD_HDR_NBDS, 1);
@@ -3071,13 +3078,20 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 					      &pbd_e2->dst_mac_addr_lo,
 					      eth->h_dest);
 		}
+
+		SET_FLAG(pbd_e2_parsing_data,
+			 ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type);
 	} else {
+		u16 global_data = 0;
 		pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x;
 		memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x));
 		/* Set PBD in checksum offload case */
 		if (xmit_type & XMIT_CSUM)
 			hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type);
 
+		SET_FLAG(global_data,
+			 ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type);
+		pbd_e1x->global_data |= cpu_to_le16(global_data);
 	}
 
 	/* Setup the data pointer of the first BD of the packet */
@@ -3764,7 +3778,7 @@ int bnx2x_reload_if_running(struct net_device *dev)
 	if (unlikely(!netif_running(dev)))
 		return 0;
 
-	bnx2x_nic_unload(bp, UNLOAD_NORMAL);
+	bnx2x_nic_unload(bp, UNLOAD_NORMAL, true);
 	return bnx2x_nic_load(bp, LOAD_NORMAL);
 }
 
@@ -3961,7 +3975,7 @@ int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	netif_device_detach(dev);
 
-	bnx2x_nic_unload(bp, UNLOAD_CLOSE);
+	bnx2x_nic_unload(bp, UNLOAD_CLOSE, false);
 
 	bnx2x_set_power_state(bp, pci_choose_state(pdev, state));
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index dfa757e7429..9c5ea6c5b4c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -83,8 +83,9 @@ u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode);
  * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
  *
  * @bp:		driver handle
+ * @keep_link:		true iff link should be kept up
  */
-void bnx2x_send_unload_done(struct bnx2x *bp);
+void bnx2x_send_unload_done(struct bnx2x *bp, bool keep_link);
 
 /**
  * bnx2x_config_rss_pf - configure RSS parameters in a PF.
@@ -153,6 +154,14 @@ u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
 void bnx2x_link_set(struct bnx2x *bp);
 
 /**
+ * bnx2x_force_link_reset - Forces link reset, and put the PHY
+ * in reset as well.
+ *
+ * @bp:		driver handle
+ */
+void bnx2x_force_link_reset(struct bnx2x *bp);
+
+/**
  * bnx2x_link_test - query link status.
  *
  * @bp:		driver handle
@@ -312,12 +321,13 @@ void bnx2x_set_num_queues(struct bnx2x *bp);
  *
  * @bp:			driver handle
  * @unload_mode:	COMMON, PORT, FUNCTION
+ * @keep_link:		true iff link should be kept up.
  *
  * - Cleanup MAC configuration.
  * - Closes clients.
  * - etc.
  */
-void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode);
+void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link);
 
 /**
  * bnx2x_acquire_hw_lock - acquire HW lock.
@@ -446,7 +456,7 @@ void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
 bool bnx2x_test_firmware_version(struct bnx2x *bp, bool is_err);
 
 /* dev_close main block */
-int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode);
+int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link);
 
 /* dev_open main block */
 int bnx2x_nic_load(struct bnx2x *bp, int load_mode);
@@ -710,17 +720,15 @@ static inline u16 bnx2x_tx_avail(struct bnx2x *bp,
 	prod = txdata->tx_bd_prod;
 	cons = txdata->tx_bd_cons;
 
-	/* NUM_TX_RINGS = number of "next-page" entries
-	   It will be used as a threshold */
-	used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS;
+	used = SUB_S16(prod, cons);
 
 #ifdef BNX2X_STOP_ON_ERROR
 	WARN_ON(used < 0);
-	WARN_ON(used > bp->tx_ring_size);
-	WARN_ON((bp->tx_ring_size - used) > MAX_TX_AVAIL);
+	WARN_ON(used > txdata->tx_ring_size);
+	WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL);
 #endif
 
-	return (s16)(bp->tx_ring_size) - used;
+	return (s16)(txdata->tx_ring_size) - used;
 }
 
 static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata)
@@ -792,7 +800,7 @@ static inline void bnx2x_add_all_napi(struct bnx2x *bp)
 	bp->num_napi_queues = bp->num_queues;
 
 	/* Add NAPI objects */
-	for_each_napi_rx_queue(bp, i)
+	for_each_rx_queue(bp, i)
 		netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
 			       bnx2x_poll, BNX2X_NAPI_WEIGHT);
 }
@@ -801,7 +809,7 @@ static inline void bnx2x_del_all_napi(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_napi_rx_queue(bp, i)
+	for_each_rx_queue(bp, i)
 		netif_napi_del(&bnx2x_fp(bp, i, napi));
 }
 
@@ -1088,6 +1096,7 @@ static inline void bnx2x_init_txdata(struct bnx2x *bp,
 	txdata->txq_index = txq_index;
 	txdata->tx_cons_sb = tx_cons_sb;
 	txdata->parent_fp = fp;
+	txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size;
 
 	DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n",
 	   txdata->cid, txdata->txq_index);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 8a73374e52a..2245c389540 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -91,25 +91,21 @@ static void bnx2x_pfc_set(struct bnx2x *bp)
 	/*
 	 * Rx COS configuration
 	 * Changing PFC RX configuration .
-	 * In RX COS0 will always be configured to lossy and COS1 to lossless
+	 * In RX COS0 will always be configured to lossless and COS1 to lossy
 	 */
 	for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
 		pri_bit = 1 << i;
 
-		if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
+		if (!(pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)))
 			val |= 1 << (i * 4);
 	}
 
 	pfc_params.pkt_priority_to_cos = val;
 
 	/* RX COS0 */
-	pfc_params.llfc_low_priority_classes = 0;
+	pfc_params.llfc_low_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
 	/* RX COS1 */
-	pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
-
-	/* BRB configuration */
-	pfc_params.cos0_pauseable = false;
-	pfc_params.cos1_pauseable = true;
+	pfc_params.llfc_high_priority_classes = 0;
 
 	bnx2x_acquire_phy_lock(bp);
 	bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
index 3e4cff9b1eb..b926f58e983 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
@@ -401,11 +401,11 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x70000, 8, RI_ALL_ONLINE },
 	{ 0x70020, 8184, RI_ALL_OFFLINE },
 	{ 0x78000, 8192, RI_E3E3B0_OFFLINE },
-	{ 0x85000, 3, RI_ALL_ONLINE },
-	{ 0x8501c, 7, RI_ALL_ONLINE },
-	{ 0x85048, 1, RI_ALL_ONLINE },
-	{ 0x85200, 32, RI_ALL_ONLINE },
-	{ 0xb0000, 16384, RI_E1H_ONLINE },
+	{ 0x85000, 3, RI_ALL_OFFLINE },
+	{ 0x8501c, 7, RI_ALL_OFFLINE },
+	{ 0x85048, 1, RI_ALL_OFFLINE },
+	{ 0x85200, 32, RI_ALL_OFFLINE },
+	{ 0xb0000, 16384, RI_E1H_OFFLINE },
 	{ 0xc1000, 7, RI_ALL_ONLINE },
 	{ 0xc103c, 2, RI_E2E3E3B0_ONLINE },
 	{ 0xc1800, 2, RI_ALL_ONLINE },
@@ -581,17 +581,12 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x140188, 3, RI_E1E1HE2E3_ONLINE },
 	{ 0x140194, 13, RI_ALL_ONLINE },
 	{ 0x140200, 6, RI_E1E1HE2E3_ONLINE },
-	{ 0x140220, 4, RI_E2E3_ONLINE },
-	{ 0x140240, 4, RI_E2E3_ONLINE },
 	{ 0x140260, 4, RI_E2E3_ONLINE },
 	{ 0x140280, 4, RI_E2E3_ONLINE },
-	{ 0x1402a0, 4, RI_E2E3_ONLINE },
-	{ 0x1402c0, 4, RI_E2E3_ONLINE },
 	{ 0x1402e0, 2, RI_E2E3_ONLINE },
 	{ 0x1402e8, 2, RI_E2E3E3B0_ONLINE },
 	{ 0x1402f0, 9, RI_E2E3_ONLINE },
 	{ 0x140314, 44, RI_E3B0_ONLINE },
-	{ 0x1403d0, 70, RI_E3B0_ONLINE },
 	{ 0x144000, 4, RI_E1E1H_ONLINE },
 	{ 0x148000, 4, RI_E1E1H_ONLINE },
 	{ 0x14c000, 4, RI_E1E1H_ONLINE },
@@ -704,7 +699,6 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x180398, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x1803a0, 5, RI_E2E3E3B0_ONLINE },
 	{ 0x1803b4, 2, RI_E3E3B0_ONLINE },
-	{ 0x180400, 1, RI_ALL_ONLINE },
 	{ 0x180404, 255, RI_E1E1H_OFFLINE },
 	{ 0x181000, 4, RI_ALL_ONLINE },
 	{ 0x181010, 1020, RI_ALL_OFFLINE },
@@ -800,9 +794,9 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x1b905c, 1, RI_E3E3B0_ONLINE },
 	{ 0x1b9064, 1, RI_E3B0_ONLINE },
 	{ 0x1b9080, 10, RI_E3B0_ONLINE },
-	{ 0x1b9400, 14, RI_E2E3E3B0_ONLINE },
-	{ 0x1b943c, 19, RI_E2E3E3B0_ONLINE },
-	{ 0x1b9490, 10, RI_E2E3E3B0_ONLINE },
+	{ 0x1b9400, 14, RI_E2E3E3B0_OFFLINE },
+	{ 0x1b943c, 19, RI_E2E3E3B0_OFFLINE },
+	{ 0x1b9490, 10, RI_E2E3E3B0_OFFLINE },
 	{ 0x1c0000, 2, RI_ALL_ONLINE },
 	{ 0x200000, 65, RI_ALL_ONLINE },
 	{ 0x20014c, 2, RI_E1HE2E3E3B0_ONLINE },
@@ -814,7 +808,6 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x200398, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x2003a0, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x2003a8, 2, RI_E2E3E3B0_ONLINE },
-	{ 0x200400, 1, RI_ALL_ONLINE },
 	{ 0x200404, 255, RI_E1E1H_OFFLINE },
 	{ 0x202000, 4, RI_ALL_ONLINE },
 	{ 0x202010, 2044, RI_ALL_OFFLINE },
@@ -921,7 +914,6 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x280398, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x2803a0, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x2803a8, 2, RI_E2E3E3B0_ONLINE },
-	{ 0x280400, 1, RI_ALL_ONLINE },
 	{ 0x280404, 255, RI_E1E1H_OFFLINE },
 	{ 0x282000, 4, RI_ALL_ONLINE },
 	{ 0x282010, 2044, RI_ALL_OFFLINE },
@@ -1031,7 +1023,6 @@ static const struct reg_addr reg_addrs[] = {
 	{ 0x300398, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x3003a0, 1, RI_E2E3E3B0_ONLINE },
 	{ 0x3003a8, 2, RI_E2E3E3B0_ONLINE },
-	{ 0x300400, 1, RI_ALL_ONLINE },
 	{ 0x300404, 255, RI_E1E1H_OFFLINE },
 	{ 0x302000, 4, RI_ALL_ONLINE },
 	{ 0x302010, 2044, RI_ALL_OFFLINE },
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index fc4e0e3885b..c65295dded3 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -775,7 +775,7 @@ static void bnx2x_get_regs(struct net_device *dev,
 	struct bnx2x *bp = netdev_priv(dev);
 	struct dump_hdr dump_hdr = {0};
 
-	regs->version = 0;
+	regs->version = 1;
 	memset(p, 0, regs->len);
 
 	if (!netif_running(bp->dev))
@@ -905,6 +905,7 @@ static int bnx2x_nway_reset(struct net_device *dev)
 
 	if (netif_running(dev)) {
 		bnx2x_stats_handle(bp, STATS_EVENT_STOP);
+		bnx2x_force_link_reset(bp);
 		bnx2x_link_set(bp);
 	}
 
@@ -1587,6 +1588,12 @@ static int bnx2x_set_pauseparam(struct net_device *dev,
 			bp->link_params.req_flow_ctrl[cfg_idx] =
 				BNX2X_FLOW_CTRL_AUTO;
 		}
+		bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_NONE;
+		if (epause->rx_pause)
+			bp->link_params.req_fc_auto_adv |= BNX2X_FLOW_CTRL_RX;
+
+		if (epause->tx_pause)
+			bp->link_params.req_fc_auto_adv |= BNX2X_FLOW_CTRL_TX;
 	}
 
 	DP(BNX2X_MSG_ETHTOOL,
@@ -1600,7 +1607,7 @@ static int bnx2x_set_pauseparam(struct net_device *dev,
 	return 0;
 }
 
-static char *bnx2x_tests_str_arr[BNX2X_NUM_TESTS_SF] = {
+static const char bnx2x_tests_str_arr[BNX2X_NUM_TESTS_SF][ETH_GSTRING_LEN] = {
 	"register_test (offline)    ",
 	"memory_test (offline)      ",
 	"int_loopback_test (offline)",
@@ -1647,7 +1654,7 @@ static int bnx2x_get_eee(struct net_device *dev, struct ethtool_eee *edata)
 		return -EOPNOTSUPP;
 	}
 
-	eee_cfg = SHMEM2_RD(bp, eee_status[BP_PORT(bp)]);
+	eee_cfg = bp->link_vars.eee_status;
 
 	edata->supported =
 		bnx2x_eee_to_adv((eee_cfg & SHMEM_EEE_SUPPORTED_MASK) >>
@@ -1684,7 +1691,7 @@ static int bnx2x_set_eee(struct net_device *dev, struct ethtool_eee *edata)
 		return -EOPNOTSUPP;
 	}
 
-	eee_cfg = SHMEM2_RD(bp, eee_status[BP_PORT(bp)]);
+	eee_cfg = bp->link_vars.eee_status;
 
 	if (!(eee_cfg & SHMEM_EEE_SUPPORTED_MASK)) {
 		DP(BNX2X_MSG_ETHTOOL, "Board does not support EEE!\n");
@@ -1733,6 +1740,7 @@ static int bnx2x_set_eee(struct net_device *dev, struct ethtool_eee *edata)
 	/* Restart link to propogate changes */
 	if (netif_running(dev)) {
 		bnx2x_stats_handle(bp, STATS_EVENT_STOP);
+		bnx2x_force_link_reset(bp);
 		bnx2x_link_set(bp);
 	}
 
@@ -2032,8 +2040,6 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode)
 	u16 pkt_prod, bd_prod;
 	struct sw_tx_bd *tx_buf;
 	struct eth_tx_start_bd *tx_start_bd;
-	struct eth_tx_parse_bd_e1x  *pbd_e1x = NULL;
-	struct eth_tx_parse_bd_e2  *pbd_e2 = NULL;
 	dma_addr_t mapping;
 	union eth_rx_cqe *cqe;
 	u8 cqe_fp_flags, cqe_fp_type;
@@ -2125,21 +2131,32 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode)
 	tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod);
 	tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
 	SET_FLAG(tx_start_bd->general_data,
-		 ETH_TX_START_BD_ETH_ADDR_TYPE,
-		 UNICAST_ADDRESS);
-	SET_FLAG(tx_start_bd->general_data,
 		 ETH_TX_START_BD_HDR_NBDS,
 		 1);
+	SET_FLAG(tx_start_bd->general_data,
+		 ETH_TX_START_BD_PARSE_NBDS,
+		 0);
 
 	/* turn on parsing and get a BD */
 	bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
 
-	pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x;
-	pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2;
-
-	memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2));
-	memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x));
-
+	if (CHIP_IS_E1x(bp)) {
+		u16 global_data = 0;
+		struct eth_tx_parse_bd_e1x  *pbd_e1x =
+			&txdata->tx_desc_ring[bd_prod].parse_bd_e1x;
+		memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x));
+		SET_FLAG(global_data,
+			 ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, UNICAST_ADDRESS);
+		pbd_e1x->global_data = cpu_to_le16(global_data);
+	} else {
+		u32 parsing_data = 0;
+		struct eth_tx_parse_bd_e2  *pbd_e2 =
+			&txdata->tx_desc_ring[bd_prod].parse_bd_e2;
+		memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2));
+		SET_FLAG(parsing_data,
+			 ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, UNICAST_ADDRESS);
+		pbd_e2->parsing_data = cpu_to_le32(parsing_data);
+	}
 	wmb();
 
 	txdata->tx_db.data.prod += 2;
@@ -2257,7 +2274,7 @@ static int bnx2x_test_ext_loopback(struct bnx2x *bp)
 	if (!netif_running(bp->dev))
 		return BNX2X_EXT_LOOPBACK_FAILED;
 
-	bnx2x_nic_unload(bp, UNLOAD_NORMAL);
+	bnx2x_nic_unload(bp, UNLOAD_NORMAL, false);
 	rc = bnx2x_nic_load(bp, LOAD_LOOPBACK_EXT);
 	if (rc) {
 		DP(BNX2X_MSG_ETHTOOL,
@@ -2408,7 +2425,7 @@ static void bnx2x_self_test(struct net_device *dev,
 
 		link_up = bp->link_vars.link_up;
 
-		bnx2x_nic_unload(bp, UNLOAD_NORMAL);
+		bnx2x_nic_unload(bp, UNLOAD_NORMAL, false);
 		rc = bnx2x_nic_load(bp, LOAD_DIAG);
 		if (rc) {
 			etest->flags |= ETH_TEST_FL_FAILED;
@@ -2440,7 +2457,7 @@ static void bnx2x_self_test(struct net_device *dev,
 			etest->flags |= ETH_TEST_FL_EXTERNAL_LB_DONE;
 		}
 
-		bnx2x_nic_unload(bp, UNLOAD_NORMAL);
+		bnx2x_nic_unload(bp, UNLOAD_NORMAL, false);
 
 		/* restore input for TX port IF */
 		REG_WR(bp, NIG_REG_EGRESS_UMP0_IN_EN + port*4, val);
@@ -2528,7 +2545,7 @@ static int bnx2x_get_sset_count(struct net_device *dev, int stringset)
 static void bnx2x_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 {
 	struct bnx2x *bp = netdev_priv(dev);
-	int i, j, k, offset, start;
+	int i, j, k, start;
 	char queue_name[MAX_QUEUE_NAME_LEN+1];
 
 	switch (stringset) {
@@ -2564,13 +2581,8 @@ static void bnx2x_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 			start = 0;
 		else
 			start = 4;
-		for (i = 0, j = start; j < (start + BNX2X_NUM_TESTS(bp));
-		     i++, j++) {
-			offset = sprintf(buf+32*i, "%s",
-					 bnx2x_tests_str_arr[j]);
-			*(buf+offset) = '\0';
-		}
-		break;
+		memcpy(buf, bnx2x_tests_str_arr + start,
+		       ETH_GSTRING_LEN * BNX2X_NUM_TESTS(bp));
 	}
 }
 
@@ -2888,11 +2900,9 @@ static void bnx2x_get_channels(struct net_device *dev,
  */
 static void bnx2x_change_num_queues(struct bnx2x *bp, int num_rss)
 {
-	bnx2x_del_all_napi(bp);
 	bnx2x_disable_msi(bp);
 	BNX2X_NUM_QUEUES(bp) = num_rss + NON_ETH_CONTEXT_USE;
 	bnx2x_set_int_mode(bp);
-	bnx2x_add_all_napi(bp);
 }
 
 /**
@@ -2936,7 +2946,7 @@ static int bnx2x_set_channels(struct net_device *dev,
 		bnx2x_change_num_queues(bp, channels->combined_count);
 		return 0;
 	}
-	bnx2x_nic_unload(bp, UNLOAD_NORMAL);
+	bnx2x_nic_unload(bp, UNLOAD_NORMAL, true);
 	bnx2x_change_num_queues(bp, channels->combined_count);
 	return bnx2x_nic_load(bp, LOAD_NORMAL);
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
index bbc66ced9c2..620fe939ecf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
@@ -88,9 +88,6 @@
 #define TSTORM_ASSERT_LIST_INDEX_OFFSET	(IRO[102].base)
 #define TSTORM_ASSERT_LIST_OFFSET(assertListEntry) \
 	(IRO[101].base + ((assertListEntry) * IRO[101].m1))
-#define TSTORM_COMMON_SAFC_WORKAROUND_ENABLE_OFFSET (IRO[107].base)
-#define TSTORM_COMMON_SAFC_WORKAROUND_TIMEOUT_10USEC_OFFSET \
-	(IRO[108].base)
 #define TSTORM_FUNCTION_COMMON_CONFIG_OFFSET(pfId) \
 	(IRO[201].base + ((pfId) * IRO[201].m1))
 #define TSTORM_FUNC_EN_OFFSET(funcId) \
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 76b6e65790f..18704929e64 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -1286,6 +1286,9 @@ struct drv_func_mb {
 	#define DRV_MSG_CODE_SET_MF_BW_MIN_MASK         0x00ff0000
 	#define DRV_MSG_CODE_SET_MF_BW_MAX_MASK         0xff000000
 
+	#define DRV_MSG_CODE_UNLOAD_SKIP_LINK_RESET     0x00000002
+
+	#define DRV_MSG_CODE_LOAD_REQ_WITH_LFA          0x0000100a
 	u32 fw_mb_header;
 	#define FW_MSG_CODE_MASK                        0xffff0000
 	#define FW_MSG_CODE_DRV_LOAD_COMMON             0x10100000
@@ -1909,6 +1912,54 @@ struct lldp_local_mib {
 };
 /***END OF DCBX STRUCTURES DECLARATIONS***/
 
+/***********************************************************/
+/*                         Elink section                   */
+/***********************************************************/
+#define SHMEM_LINK_CONFIG_SIZE 2
+struct shmem_lfa {
+	u32 req_duplex;
+	#define REQ_DUPLEX_PHY0_MASK        0x0000ffff
+	#define REQ_DUPLEX_PHY0_SHIFT       0
+	#define REQ_DUPLEX_PHY1_MASK        0xffff0000
+	#define REQ_DUPLEX_PHY1_SHIFT       16
+	u32 req_flow_ctrl;
+	#define REQ_FLOW_CTRL_PHY0_MASK     0x0000ffff
+	#define REQ_FLOW_CTRL_PHY0_SHIFT    0
+	#define REQ_FLOW_CTRL_PHY1_MASK     0xffff0000
+	#define REQ_FLOW_CTRL_PHY1_SHIFT    16
+	u32 req_line_speed; /* Also determine AutoNeg */
+	#define REQ_LINE_SPD_PHY0_MASK      0x0000ffff
+	#define REQ_LINE_SPD_PHY0_SHIFT     0
+	#define REQ_LINE_SPD_PHY1_MASK      0xffff0000
+	#define REQ_LINE_SPD_PHY1_SHIFT     16
+	u32 speed_cap_mask[SHMEM_LINK_CONFIG_SIZE];
+	u32 additional_config;
+	#define REQ_FC_AUTO_ADV_MASK        0x0000ffff
+	#define REQ_FC_AUTO_ADV0_SHIFT      0
+	#define NO_LFA_DUE_TO_DCC_MASK      0x00010000
+	u32 lfa_sts;
+	#define LFA_LINK_FLAP_REASON_OFFSET		0
+	#define LFA_LINK_FLAP_REASON_MASK		0x000000ff
+		#define LFA_LINK_DOWN			    0x1
+		#define LFA_LOOPBACK_ENABLED		0x2
+		#define LFA_DUPLEX_MISMATCH		    0x3
+		#define LFA_MFW_IS_TOO_OLD		    0x4
+		#define LFA_LINK_SPEED_MISMATCH		0x5
+		#define LFA_FLOW_CTRL_MISMATCH		0x6
+		#define LFA_SPEED_CAP_MISMATCH		0x7
+		#define LFA_DCC_LFA_DISABLED		0x8
+		#define LFA_EEE_MISMATCH		0x9
+
+	#define LINK_FLAP_AVOIDANCE_COUNT_OFFSET	8
+	#define LINK_FLAP_AVOIDANCE_COUNT_MASK		0x0000ff00
+
+	#define LINK_FLAP_COUNT_OFFSET			16
+	#define LINK_FLAP_COUNT_MASK			0x00ff0000
+
+	#define LFA_FLAGS_MASK				0xff000000
+	#define SHMEM_LFA_DONT_CLEAR_STAT		(1<<24)
+};
+
 struct ncsi_oem_fcoe_features {
 	u32 fcoe_features1;
 	#define FCOE_FEATURES1_IOS_PER_CONNECTION_MASK          0x0000FFFF
@@ -2738,8 +2789,8 @@ struct afex_stats {
 };
 
 #define BCM_5710_FW_MAJOR_VERSION			7
-#define BCM_5710_FW_MINOR_VERSION			2
-#define BCM_5710_FW_REVISION_VERSION			51
+#define BCM_5710_FW_MINOR_VERSION			8
+#define BCM_5710_FW_REVISION_VERSION		2
 #define BCM_5710_FW_ENGINEERING_VERSION			0
 #define BCM_5710_FW_COMPILE_FLAGS			1
 
@@ -3861,10 +3912,8 @@ struct eth_rss_update_ramrod_data {
 #define ETH_RSS_UPDATE_RAMROD_DATA_IPV6_TCP_CAPABILITY_SHIFT 4
 #define ETH_RSS_UPDATE_RAMROD_DATA_IPV6_UDP_CAPABILITY (0x1<<5)
 #define ETH_RSS_UPDATE_RAMROD_DATA_IPV6_UDP_CAPABILITY_SHIFT 5
-#define ETH_RSS_UPDATE_RAMROD_DATA_UPDATE_RSS_KEY (0x1<<6)
-#define ETH_RSS_UPDATE_RAMROD_DATA_UPDATE_RSS_KEY_SHIFT 6
-#define __ETH_RSS_UPDATE_RAMROD_DATA_RESERVED0 (0x1<<7)
-#define __ETH_RSS_UPDATE_RAMROD_DATA_RESERVED0_SHIFT 7
+#define ETH_RSS_UPDATE_RAMROD_DATA_UPDATE_RSS_KEY (0x1<<7)
+#define ETH_RSS_UPDATE_RAMROD_DATA_UPDATE_RSS_KEY_SHIFT 7
 	u8 rss_result_mask;
 	u8 rss_mode;
 	__le32 __reserved2;
@@ -4080,27 +4129,29 @@ struct eth_tx_start_bd {
 #define ETH_TX_START_BD_HDR_NBDS_SHIFT 0
 #define ETH_TX_START_BD_FORCE_VLAN_MODE (0x1<<4)
 #define ETH_TX_START_BD_FORCE_VLAN_MODE_SHIFT 4
-#define ETH_TX_START_BD_RESREVED (0x1<<5)
-#define ETH_TX_START_BD_RESREVED_SHIFT 5
-#define ETH_TX_START_BD_ETH_ADDR_TYPE (0x3<<6)
-#define ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT 6
+#define ETH_TX_START_BD_PARSE_NBDS (0x3<<5)
+#define ETH_TX_START_BD_PARSE_NBDS_SHIFT 5
+#define ETH_TX_START_BD_RESREVED (0x1<<7)
+#define ETH_TX_START_BD_RESREVED_SHIFT 7
 };
 
 /*
  * Tx parsing BD structure for ETH E1/E1h
  */
 struct eth_tx_parse_bd_e1x {
-	u8 global_data;
+	__le16 global_data;
 #define ETH_TX_PARSE_BD_E1X_IP_HDR_START_OFFSET_W (0xF<<0)
 #define ETH_TX_PARSE_BD_E1X_IP_HDR_START_OFFSET_W_SHIFT 0
-#define ETH_TX_PARSE_BD_E1X_RESERVED0 (0x1<<4)
-#define ETH_TX_PARSE_BD_E1X_RESERVED0_SHIFT 4
-#define ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN (0x1<<5)
-#define ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN_SHIFT 5
-#define ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN (0x1<<6)
-#define ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT 6
-#define ETH_TX_PARSE_BD_E1X_NS_FLG (0x1<<7)
-#define ETH_TX_PARSE_BD_E1X_NS_FLG_SHIFT 7
+#define ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE (0x3<<4)
+#define ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE_SHIFT 4
+#define ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN (0x1<<6)
+#define ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN_SHIFT 6
+#define ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN (0x1<<7)
+#define ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT 7
+#define ETH_TX_PARSE_BD_E1X_NS_FLG (0x1<<8)
+#define ETH_TX_PARSE_BD_E1X_NS_FLG_SHIFT 8
+#define ETH_TX_PARSE_BD_E1X_RESERVED0 (0x7F<<9)
+#define ETH_TX_PARSE_BD_E1X_RESERVED0_SHIFT 9
 	u8 tcp_flags;
 #define ETH_TX_PARSE_BD_E1X_FIN_FLG (0x1<<0)
 #define ETH_TX_PARSE_BD_E1X_FIN_FLG_SHIFT 0
@@ -4119,7 +4170,6 @@ struct eth_tx_parse_bd_e1x {
 #define ETH_TX_PARSE_BD_E1X_CWR_FLG (0x1<<7)
 #define ETH_TX_PARSE_BD_E1X_CWR_FLG_SHIFT 7
 	u8 ip_hlen_w;
-	s8 reserved;
 	__le16 total_hlen_w;
 	__le16 tcp_pseudo_csum;
 	__le16 lso_mss;
@@ -4138,14 +4188,16 @@ struct eth_tx_parse_bd_e2 {
 	__le16 src_mac_addr_mid;
 	__le16 src_mac_addr_hi;
 	__le32 parsing_data;
-#define ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W (0x1FFF<<0)
+#define ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W (0x7FF<<0)
 #define ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W_SHIFT 0
-#define ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW (0xF<<13)
-#define ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT 13
-#define ETH_TX_PARSE_BD_E2_LSO_MSS (0x3FFF<<17)
-#define ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT 17
-#define ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR (0x1<<31)
-#define ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR_SHIFT 31
+#define ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW (0xF<<11)
+#define ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT 11
+#define ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR (0x1<<15)
+#define ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR_SHIFT 15
+#define ETH_TX_PARSE_BD_E2_LSO_MSS (0x3FFF<<16)
+#define ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT 16
+#define ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE (0x3<<30)
+#define ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE_SHIFT 30
 };
 
 /*
@@ -4913,7 +4965,8 @@ struct flow_control_configuration {
  *
  */
 struct function_start_data {
-	__le16 function_mode;
+	u8 function_mode;
+	u8 reserved;
 	__le16 sd_vlan_tag;
 	__le16 vif_id;
 	u8 path_id;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h
index 559c396d45c..c8f10f0e8a0 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h
@@ -566,7 +566,7 @@ static const struct {
 		u32 e2;		/* 57712 */
 		u32 e3;		/* 578xx */
 	} reg_mask;		/* Register mask (all valid bits) */
-	char name[7];		/* Block's longest name is 6 characters long
+	char name[8];		/* Block's longest name is 7 characters long
 				 * (name + suffix)
 				 */
 } bnx2x_blocks_parity_data[] = {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index f4beb46c470..e2e45ee5df3 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -161,120 +161,6 @@
 #define EDC_MODE_LIMITING				0x0044
 #define EDC_MODE_PASSIVE_DAC			0x0055
 
-/* BRB default for class 0 E2 */
-#define DEFAULT0_E2_BRB_MAC_PAUSE_XOFF_THR	170
-#define DEFAULT0_E2_BRB_MAC_PAUSE_XON_THR		250
-#define DEFAULT0_E2_BRB_MAC_FULL_XOFF_THR		10
-#define DEFAULT0_E2_BRB_MAC_FULL_XON_THR		50
-
-/* BRB thresholds for E2*/
-#define PFC_E2_BRB_MAC_PAUSE_XOFF_THR_PAUSE		170
-#define PFC_E2_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE		0
-
-#define PFC_E2_BRB_MAC_PAUSE_XON_THR_PAUSE		250
-#define PFC_E2_BRB_MAC_PAUSE_XON_THR_NON_PAUSE		0
-
-#define PFC_E2_BRB_MAC_FULL_XOFF_THR_PAUSE		10
-#define PFC_E2_BRB_MAC_FULL_XOFF_THR_NON_PAUSE		90
-
-#define PFC_E2_BRB_MAC_FULL_XON_THR_PAUSE			50
-#define PFC_E2_BRB_MAC_FULL_XON_THR_NON_PAUSE		250
-
-/* BRB default for class 0 E3A0 */
-#define DEFAULT0_E3A0_BRB_MAC_PAUSE_XOFF_THR	290
-#define DEFAULT0_E3A0_BRB_MAC_PAUSE_XON_THR	410
-#define DEFAULT0_E3A0_BRB_MAC_FULL_XOFF_THR	10
-#define DEFAULT0_E3A0_BRB_MAC_FULL_XON_THR	50
-
-/* BRB thresholds for E3A0 */
-#define PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_PAUSE		290
-#define PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE		0
-
-#define PFC_E3A0_BRB_MAC_PAUSE_XON_THR_PAUSE		410
-#define PFC_E3A0_BRB_MAC_PAUSE_XON_THR_NON_PAUSE		0
-
-#define PFC_E3A0_BRB_MAC_FULL_XOFF_THR_PAUSE		10
-#define PFC_E3A0_BRB_MAC_FULL_XOFF_THR_NON_PAUSE		170
-
-#define PFC_E3A0_BRB_MAC_FULL_XON_THR_PAUSE		50
-#define PFC_E3A0_BRB_MAC_FULL_XON_THR_NON_PAUSE		410
-
-/* BRB default for E3B0 */
-#define DEFAULT0_E3B0_BRB_MAC_PAUSE_XOFF_THR	330
-#define DEFAULT0_E3B0_BRB_MAC_PAUSE_XON_THR	490
-#define DEFAULT0_E3B0_BRB_MAC_FULL_XOFF_THR	15
-#define DEFAULT0_E3B0_BRB_MAC_FULL_XON_THR	55
-
-/* BRB thresholds for E3B0 2 port mode*/
-#define PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_PAUSE		1025
-#define PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE	0
-
-#define PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_PAUSE		1025
-#define PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE	0
-
-#define PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_PAUSE		10
-#define PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE	1025
-
-#define PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_PAUSE		50
-#define PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_NON_PAUSE	1025
-
-/* only for E3B0*/
-#define PFC_E3B0_2P_BRB_FULL_LB_XOFF_THR			1025
-#define PFC_E3B0_2P_BRB_FULL_LB_XON_THR			1025
-
-/* Lossy +Lossless GUARANTIED == GUART */
-#define PFC_E3B0_2P_MIX_PAUSE_LB_GUART			284
-/* Lossless +Lossless*/
-#define PFC_E3B0_2P_PAUSE_LB_GUART			236
-/* Lossy +Lossy*/
-#define PFC_E3B0_2P_NON_PAUSE_LB_GUART			342
-
-/* Lossy +Lossless*/
-#define PFC_E3B0_2P_MIX_PAUSE_MAC_0_CLASS_T_GUART		284
-/* Lossless +Lossless*/
-#define PFC_E3B0_2P_PAUSE_MAC_0_CLASS_T_GUART		236
-/* Lossy +Lossy*/
-#define PFC_E3B0_2P_NON_PAUSE_MAC_0_CLASS_T_GUART		336
-#define PFC_E3B0_2P_BRB_MAC_0_CLASS_T_GUART_HYST		80
-
-#define PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART		0
-#define PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART_HYST		0
-
-/* BRB thresholds for E3B0 4 port mode */
-#define PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_PAUSE		304
-#define PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE	0
-
-#define PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_PAUSE		384
-#define PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE	0
-
-#define PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_PAUSE		10
-#define PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE	304
-
-#define PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_PAUSE		50
-#define PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_NON_PAUSE	384
-
-/* only for E3B0*/
-#define PFC_E3B0_4P_BRB_FULL_LB_XOFF_THR			304
-#define PFC_E3B0_4P_BRB_FULL_LB_XON_THR			384
-#define PFC_E3B0_4P_LB_GUART		120
-
-#define PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART		120
-#define PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART_HYST	80
-
-#define PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART		80
-#define PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART_HYST	120
-
-/* Pause defines*/
-#define DEFAULT_E3B0_BRB_FULL_LB_XOFF_THR			330
-#define DEFAULT_E3B0_BRB_FULL_LB_XON_THR			490
-#define DEFAULT_E3B0_LB_GUART		40
-
-#define DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART		40
-#define DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART_HYST	0
-
-#define DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART		40
-#define DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART_HYST	0
-
 /* ETS defines*/
 #define DCBX_INVALID_COS					(0xFF)
 
@@ -321,6 +207,127 @@ static u32 bnx2x_bits_dis(struct bnx2x *bp, u32 reg, u32 bits)
 	return val;
 }
 
+/*
+ * bnx2x_check_lfa - This function checks if link reinitialization is required,
+ *                   or link flap can be avoided.
+ *
+ * @params:	link parameters
+ * Returns 0 if Link Flap Avoidance conditions are met otherwise, the failed
+ *         condition code.
+ */
+static int bnx2x_check_lfa(struct link_params *params)
+{
+	u32 link_status, cfg_idx, lfa_mask, cfg_size;
+	u32 cur_speed_cap_mask, cur_req_fc_auto_adv, additional_config;
+	u32 saved_val, req_val, eee_status;
+	struct bnx2x *bp = params->bp;
+
+	additional_config =
+		REG_RD(bp, params->lfa_base +
+			   offsetof(struct shmem_lfa, additional_config));
+
+	/* NOTE: must be first condition checked -
+	* to verify DCC bit is cleared in any case!
+	*/
+	if (additional_config & NO_LFA_DUE_TO_DCC_MASK) {
+		DP(NETIF_MSG_LINK, "No LFA due to DCC flap after clp exit\n");
+		REG_WR(bp, params->lfa_base +
+			   offsetof(struct shmem_lfa, additional_config),
+		       additional_config & ~NO_LFA_DUE_TO_DCC_MASK);
+		return LFA_DCC_LFA_DISABLED;
+	}
+
+	/* Verify that link is up */
+	link_status = REG_RD(bp, params->shmem_base +
+			     offsetof(struct shmem_region,
+				      port_mb[params->port].link_status));
+	if (!(link_status & LINK_STATUS_LINK_UP))
+		return LFA_LINK_DOWN;
+
+	/* Verify that loopback mode is not set */
+	if (params->loopback_mode)
+		return LFA_LOOPBACK_ENABLED;
+
+	/* Verify that MFW supports LFA */
+	if (!params->lfa_base)
+		return LFA_MFW_IS_TOO_OLD;
+
+	if (params->num_phys == 3) {
+		cfg_size = 2;
+		lfa_mask = 0xffffffff;
+	} else {
+		cfg_size = 1;
+		lfa_mask = 0xffff;
+	}
+
+	/* Compare Duplex */
+	saved_val = REG_RD(bp, params->lfa_base +
+			   offsetof(struct shmem_lfa, req_duplex));
+	req_val = params->req_duplex[0] | (params->req_duplex[1] << 16);
+	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
+		DP(NETIF_MSG_LINK, "Duplex mismatch %x vs. %x\n",
+			       (saved_val & lfa_mask), (req_val & lfa_mask));
+		return LFA_DUPLEX_MISMATCH;
+	}
+	/* Compare Flow Control */
+	saved_val = REG_RD(bp, params->lfa_base +
+			   offsetof(struct shmem_lfa, req_flow_ctrl));
+	req_val = params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16);
+	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
+		DP(NETIF_MSG_LINK, "Flow control mismatch %x vs. %x\n",
+			       (saved_val & lfa_mask), (req_val & lfa_mask));
+		return LFA_FLOW_CTRL_MISMATCH;
+	}
+	/* Compare Link Speed */
+	saved_val = REG_RD(bp, params->lfa_base +
+			   offsetof(struct shmem_lfa, req_line_speed));
+	req_val = params->req_line_speed[0] | (params->req_line_speed[1] << 16);
+	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
+		DP(NETIF_MSG_LINK, "Link speed mismatch %x vs. %x\n",
+			       (saved_val & lfa_mask), (req_val & lfa_mask));
+		return LFA_LINK_SPEED_MISMATCH;
+	}
+
+	for (cfg_idx = 0; cfg_idx < cfg_size; cfg_idx++) {
+		cur_speed_cap_mask = REG_RD(bp, params->lfa_base +
+					    offsetof(struct shmem_lfa,
+						     speed_cap_mask[cfg_idx]));
+
+		if (cur_speed_cap_mask != params->speed_cap_mask[cfg_idx]) {
+			DP(NETIF_MSG_LINK, "Speed Cap mismatch %x vs. %x\n",
+				       cur_speed_cap_mask,
+				       params->speed_cap_mask[cfg_idx]);
+			return LFA_SPEED_CAP_MISMATCH;
+		}
+	}
+
+	cur_req_fc_auto_adv =
+		REG_RD(bp, params->lfa_base +
+		       offsetof(struct shmem_lfa, additional_config)) &
+		REQ_FC_AUTO_ADV_MASK;
+
+	if ((u16)cur_req_fc_auto_adv != params->req_fc_auto_adv) {
+		DP(NETIF_MSG_LINK, "Flow Ctrl AN mismatch %x vs. %x\n",
+			       cur_req_fc_auto_adv, params->req_fc_auto_adv);
+		return LFA_FLOW_CTRL_MISMATCH;
+	}
+
+	eee_status = REG_RD(bp, params->shmem2_base +
+			    offsetof(struct shmem2_region,
+				     eee_status[params->port]));
+
+	if (((eee_status & SHMEM_EEE_LPI_REQUESTED_BIT) ^
+	     (params->eee_mode & EEE_MODE_ENABLE_LPI)) ||
+	    ((eee_status & SHMEM_EEE_REQUESTED_BIT) ^
+	     (params->eee_mode & EEE_MODE_ADV_LPI))) {
+		DP(NETIF_MSG_LINK, "EEE mismatch %x vs. %x\n", params->eee_mode,
+			       eee_status);
+		return LFA_EEE_MISMATCH;
+	}
+
+	/* LFA conditions are met */
+	return 0;
+}
 /******************************************************************/
 /*			EPIO/GPIO section			  */
 /******************************************************************/
@@ -1307,93 +1314,6 @@ int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos)
 }
 
 /******************************************************************/
-/*			EEE section				   */
-/******************************************************************/
-static u8 bnx2x_eee_has_cap(struct link_params *params)
-{
-	struct bnx2x *bp = params->bp;
-
-	if (REG_RD(bp, params->shmem2_base) <=
-		   offsetof(struct shmem2_region, eee_status[params->port]))
-		return 0;
-
-	return 1;
-}
-
-static int bnx2x_eee_nvram_to_time(u32 nvram_mode, u32 *idle_timer)
-{
-	switch (nvram_mode) {
-	case PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED:
-		*idle_timer = EEE_MODE_NVRAM_BALANCED_TIME;
-		break;
-	case PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE:
-		*idle_timer = EEE_MODE_NVRAM_AGGRESSIVE_TIME;
-		break;
-	case PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY:
-		*idle_timer = EEE_MODE_NVRAM_LATENCY_TIME;
-		break;
-	default:
-		*idle_timer = 0;
-		break;
-	}
-
-	return 0;
-}
-
-static int bnx2x_eee_time_to_nvram(u32 idle_timer, u32 *nvram_mode)
-{
-	switch (idle_timer) {
-	case EEE_MODE_NVRAM_BALANCED_TIME:
-		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED;
-		break;
-	case EEE_MODE_NVRAM_AGGRESSIVE_TIME:
-		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE;
-		break;
-	case EEE_MODE_NVRAM_LATENCY_TIME:
-		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY;
-		break;
-	default:
-		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED;
-		break;
-	}
-
-	return 0;
-}
-
-static u32 bnx2x_eee_calc_timer(struct link_params *params)
-{
-	u32 eee_mode, eee_idle;
-	struct bnx2x *bp = params->bp;
-
-	if (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) {
-		if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
-			/* time value in eee_mode --> used directly*/
-			eee_idle = params->eee_mode & EEE_MODE_TIMER_MASK;
-		} else {
-			/* hsi value in eee_mode --> time */
-			if (bnx2x_eee_nvram_to_time(params->eee_mode &
-						    EEE_MODE_NVRAM_MASK,
-						    &eee_idle))
-				return 0;
-		}
-	} else {
-		/* hsi values in nvram --> time*/
-		eee_mode = ((REG_RD(bp, params->shmem_base +
-				    offsetof(struct shmem_region, dev_info.
-				    port_feature_config[params->port].
-				    eee_power_mode)) &
-			     PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
-			    PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
-
-		if (bnx2x_eee_nvram_to_time(eee_mode, &eee_idle))
-			return 0;
-	}
-
-	return eee_idle;
-}
-
-
-/******************************************************************/
 /*			PFC section				  */
 /******************************************************************/
 static void bnx2x_update_pfc_xmac(struct link_params *params,
@@ -1606,16 +1526,23 @@ static void bnx2x_set_xumac_nig(struct link_params *params,
 	       NIG_REG_P0_MAC_PAUSE_OUT_EN, tx_pause_en);
 }
 
-static void bnx2x_umac_disable(struct link_params *params)
+static void bnx2x_set_umac_rxtx(struct link_params *params, u8 en)
 {
 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
+	u32 val;
 	struct bnx2x *bp = params->bp;
 	if (!(REG_RD(bp, MISC_REG_RESET_REG_2) &
 		   (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port)))
 		return;
-
+	val = REG_RD(bp, umac_base + UMAC_REG_COMMAND_CONFIG);
+	if (en)
+		val |= (UMAC_COMMAND_CONFIG_REG_TX_ENA |
+			UMAC_COMMAND_CONFIG_REG_RX_ENA);
+	else
+		val &= ~(UMAC_COMMAND_CONFIG_REG_TX_ENA |
+			 UMAC_COMMAND_CONFIG_REG_RX_ENA);
 	/* Disable RX and TX */
-	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, 0);
+	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
 }
 
 static void bnx2x_umac_enable(struct link_params *params,
@@ -1671,6 +1598,16 @@ static void bnx2x_umac_enable(struct link_params *params,
 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
 	udelay(50);
 
+	/* Configure UMAC for EEE */
+	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
+		DP(NETIF_MSG_LINK, "configured UMAC for EEE\n");
+		REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL,
+		       UMAC_UMAC_EEE_CTRL_REG_EEE_EN);
+		REG_WR(bp, umac_base + UMAC_REG_EEE_WAKE_TIMER, 0x11);
+	} else {
+		REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL, 0x0);
+	}
+
 	/* Set MAC address for source TX Pause/PFC frames (under SW reset) */
 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0,
 	       ((params->mac_addr[2] << 24) |
@@ -1766,11 +1703,12 @@ static void bnx2x_xmac_init(struct link_params *params, u32 max_speed)
 
 }
 
-static void bnx2x_xmac_disable(struct link_params *params)
+static void bnx2x_set_xmac_rxtx(struct link_params *params, u8 en)
 {
 	u8 port = params->port;
 	struct bnx2x *bp = params->bp;
 	u32 pfc_ctrl, xmac_base = (port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
+	u32 val;
 
 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
 	    MISC_REGISTERS_RESET_REG_2_XMAC) {
@@ -1784,7 +1722,12 @@ static void bnx2x_xmac_disable(struct link_params *params)
 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
 		       (pfc_ctrl | (1<<1)));
 		DP(NETIF_MSG_LINK, "Disable XMAC on port %x\n", port);
-		REG_WR(bp, xmac_base + XMAC_REG_CTRL, 0);
+		val = REG_RD(bp, xmac_base + XMAC_REG_CTRL);
+		if (en)
+			val |= (XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
+		else
+			val &= ~(XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
+		REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
 	}
 }
 
@@ -2087,391 +2030,6 @@ static void bnx2x_update_pfc_bmac2(struct link_params *params,
 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
 }
 
-/* PFC BRB internal port configuration params */
-struct bnx2x_pfc_brb_threshold_val {
-	u32 pause_xoff;
-	u32 pause_xon;
-	u32 full_xoff;
-	u32 full_xon;
-};
-
-struct bnx2x_pfc_brb_e3b0_val {
-	u32 per_class_guaranty_mode;
-	u32 lb_guarantied_hyst;
-	u32 full_lb_xoff_th;
-	u32 full_lb_xon_threshold;
-	u32 lb_guarantied;
-	u32 mac_0_class_t_guarantied;
-	u32 mac_0_class_t_guarantied_hyst;
-	u32 mac_1_class_t_guarantied;
-	u32 mac_1_class_t_guarantied_hyst;
-};
-
-struct bnx2x_pfc_brb_th_val {
-	struct bnx2x_pfc_brb_threshold_val pauseable_th;
-	struct bnx2x_pfc_brb_threshold_val non_pauseable_th;
-	struct bnx2x_pfc_brb_threshold_val default_class0;
-	struct bnx2x_pfc_brb_threshold_val default_class1;
-
-};
-static int bnx2x_pfc_brb_get_config_params(
-				struct link_params *params,
-				struct bnx2x_pfc_brb_th_val *config_val)
-{
-	struct bnx2x *bp = params->bp;
-	DP(NETIF_MSG_LINK, "Setting PFC BRB configuration\n");
-
-	config_val->default_class1.pause_xoff = 0;
-	config_val->default_class1.pause_xon = 0;
-	config_val->default_class1.full_xoff = 0;
-	config_val->default_class1.full_xon = 0;
-
-	if (CHIP_IS_E2(bp)) {
-		/* Class0 defaults */
-		config_val->default_class0.pause_xoff =
-			DEFAULT0_E2_BRB_MAC_PAUSE_XOFF_THR;
-		config_val->default_class0.pause_xon =
-			DEFAULT0_E2_BRB_MAC_PAUSE_XON_THR;
-		config_val->default_class0.full_xoff =
-			DEFAULT0_E2_BRB_MAC_FULL_XOFF_THR;
-		config_val->default_class0.full_xon =
-			DEFAULT0_E2_BRB_MAC_FULL_XON_THR;
-		/* Pause able*/
-		config_val->pauseable_th.pause_xoff =
-			PFC_E2_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
-		config_val->pauseable_th.pause_xon =
-			PFC_E2_BRB_MAC_PAUSE_XON_THR_PAUSE;
-		config_val->pauseable_th.full_xoff =
-			PFC_E2_BRB_MAC_FULL_XOFF_THR_PAUSE;
-		config_val->pauseable_th.full_xon =
-			PFC_E2_BRB_MAC_FULL_XON_THR_PAUSE;
-		/* Non pause able*/
-		config_val->non_pauseable_th.pause_xoff =
-			PFC_E2_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
-		config_val->non_pauseable_th.pause_xon =
-			PFC_E2_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
-		config_val->non_pauseable_th.full_xoff =
-			PFC_E2_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
-		config_val->non_pauseable_th.full_xon =
-			PFC_E2_BRB_MAC_FULL_XON_THR_NON_PAUSE;
-	} else if (CHIP_IS_E3A0(bp)) {
-		/* Class0 defaults */
-		config_val->default_class0.pause_xoff =
-			DEFAULT0_E3A0_BRB_MAC_PAUSE_XOFF_THR;
-		config_val->default_class0.pause_xon =
-			DEFAULT0_E3A0_BRB_MAC_PAUSE_XON_THR;
-		config_val->default_class0.full_xoff =
-			DEFAULT0_E3A0_BRB_MAC_FULL_XOFF_THR;
-		config_val->default_class0.full_xon =
-			DEFAULT0_E3A0_BRB_MAC_FULL_XON_THR;
-		/* Pause able */
-		config_val->pauseable_th.pause_xoff =
-			PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
-		config_val->pauseable_th.pause_xon =
-			PFC_E3A0_BRB_MAC_PAUSE_XON_THR_PAUSE;
-		config_val->pauseable_th.full_xoff =
-			PFC_E3A0_BRB_MAC_FULL_XOFF_THR_PAUSE;
-		config_val->pauseable_th.full_xon =
-			PFC_E3A0_BRB_MAC_FULL_XON_THR_PAUSE;
-		/* Non pause able*/
-		config_val->non_pauseable_th.pause_xoff =
-			PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
-		config_val->non_pauseable_th.pause_xon =
-			PFC_E3A0_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
-		config_val->non_pauseable_th.full_xoff =
-			PFC_E3A0_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
-		config_val->non_pauseable_th.full_xon =
-			PFC_E3A0_BRB_MAC_FULL_XON_THR_NON_PAUSE;
-	} else if (CHIP_IS_E3B0(bp)) {
-		/* Class0 defaults */
-		config_val->default_class0.pause_xoff =
-			DEFAULT0_E3B0_BRB_MAC_PAUSE_XOFF_THR;
-		config_val->default_class0.pause_xon =
-		    DEFAULT0_E3B0_BRB_MAC_PAUSE_XON_THR;
-		config_val->default_class0.full_xoff =
-		    DEFAULT0_E3B0_BRB_MAC_FULL_XOFF_THR;
-		config_val->default_class0.full_xon =
-		    DEFAULT0_E3B0_BRB_MAC_FULL_XON_THR;
-
-		if (params->phy[INT_PHY].flags &
-		    FLAGS_4_PORT_MODE) {
-			config_val->pauseable_th.pause_xoff =
-				PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
-			config_val->pauseable_th.pause_xon =
-				PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_PAUSE;
-			config_val->pauseable_th.full_xoff =
-				PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_PAUSE;
-			config_val->pauseable_th.full_xon =
-				PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_PAUSE;
-			/* Non pause able*/
-			config_val->non_pauseable_th.pause_xoff =
-			PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
-			config_val->non_pauseable_th.pause_xon =
-			PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
-			config_val->non_pauseable_th.full_xoff =
-			PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
-			config_val->non_pauseable_th.full_xon =
-			PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_NON_PAUSE;
-		} else {
-			config_val->pauseable_th.pause_xoff =
-				PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
-			config_val->pauseable_th.pause_xon =
-				PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_PAUSE;
-			config_val->pauseable_th.full_xoff =
-				PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_PAUSE;
-			config_val->pauseable_th.full_xon =
-				PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_PAUSE;
-			/* Non pause able*/
-			config_val->non_pauseable_th.pause_xoff =
-				PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
-			config_val->non_pauseable_th.pause_xon =
-				PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
-			config_val->non_pauseable_th.full_xoff =
-				PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
-			config_val->non_pauseable_th.full_xon =
-				PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_NON_PAUSE;
-		}
-	} else
-	    return -EINVAL;
-
-	return 0;
-}
-
-static void bnx2x_pfc_brb_get_e3b0_config_params(
-		struct link_params *params,
-		struct bnx2x_pfc_brb_e3b0_val
-		*e3b0_val,
-		struct bnx2x_nig_brb_pfc_port_params *pfc_params,
-		const u8 pfc_enabled)
-{
-	if (pfc_enabled && pfc_params) {
-		e3b0_val->per_class_guaranty_mode = 1;
-		e3b0_val->lb_guarantied_hyst = 80;
-
-		if (params->phy[INT_PHY].flags &
-		    FLAGS_4_PORT_MODE) {
-			e3b0_val->full_lb_xoff_th =
-				PFC_E3B0_4P_BRB_FULL_LB_XOFF_THR;
-			e3b0_val->full_lb_xon_threshold =
-				PFC_E3B0_4P_BRB_FULL_LB_XON_THR;
-			e3b0_val->lb_guarantied =
-				PFC_E3B0_4P_LB_GUART;
-			e3b0_val->mac_0_class_t_guarantied =
-				PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART;
-			e3b0_val->mac_0_class_t_guarantied_hyst =
-				PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART_HYST;
-			e3b0_val->mac_1_class_t_guarantied =
-				PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART;
-			e3b0_val->mac_1_class_t_guarantied_hyst =
-				PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART_HYST;
-		} else {
-			e3b0_val->full_lb_xoff_th =
-				PFC_E3B0_2P_BRB_FULL_LB_XOFF_THR;
-			e3b0_val->full_lb_xon_threshold =
-				PFC_E3B0_2P_BRB_FULL_LB_XON_THR;
-			e3b0_val->mac_0_class_t_guarantied_hyst =
-				PFC_E3B0_2P_BRB_MAC_0_CLASS_T_GUART_HYST;
-			e3b0_val->mac_1_class_t_guarantied =
-				PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART;
-			e3b0_val->mac_1_class_t_guarantied_hyst =
-				PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART_HYST;
-
-			if (pfc_params->cos0_pauseable !=
-				pfc_params->cos1_pauseable) {
-				/* Nonpauseable= Lossy + pauseable = Lossless*/
-				e3b0_val->lb_guarantied =
-					PFC_E3B0_2P_MIX_PAUSE_LB_GUART;
-				e3b0_val->mac_0_class_t_guarantied =
-			       PFC_E3B0_2P_MIX_PAUSE_MAC_0_CLASS_T_GUART;
-			} else if (pfc_params->cos0_pauseable) {
-				/* Lossless +Lossless*/
-				e3b0_val->lb_guarantied =
-					PFC_E3B0_2P_PAUSE_LB_GUART;
-				e3b0_val->mac_0_class_t_guarantied =
-				   PFC_E3B0_2P_PAUSE_MAC_0_CLASS_T_GUART;
-			} else {
-				/* Lossy +Lossy*/
-				e3b0_val->lb_guarantied =
-					PFC_E3B0_2P_NON_PAUSE_LB_GUART;
-				e3b0_val->mac_0_class_t_guarantied =
-			       PFC_E3B0_2P_NON_PAUSE_MAC_0_CLASS_T_GUART;
-			}
-		}
-	} else {
-		e3b0_val->per_class_guaranty_mode = 0;
-		e3b0_val->lb_guarantied_hyst = 0;
-		e3b0_val->full_lb_xoff_th =
-			DEFAULT_E3B0_BRB_FULL_LB_XOFF_THR;
-		e3b0_val->full_lb_xon_threshold =
-			DEFAULT_E3B0_BRB_FULL_LB_XON_THR;
-		e3b0_val->lb_guarantied =
-			DEFAULT_E3B0_LB_GUART;
-		e3b0_val->mac_0_class_t_guarantied =
-			DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART;
-		e3b0_val->mac_0_class_t_guarantied_hyst =
-			DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART_HYST;
-		e3b0_val->mac_1_class_t_guarantied =
-			DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART;
-		e3b0_val->mac_1_class_t_guarantied_hyst =
-			DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART_HYST;
-	}
-}
-static int bnx2x_update_pfc_brb(struct link_params *params,
-				struct link_vars *vars,
-				struct bnx2x_nig_brb_pfc_port_params
-				*pfc_params)
-{
-	struct bnx2x *bp = params->bp;
-	struct bnx2x_pfc_brb_th_val config_val = { {0} };
-	struct bnx2x_pfc_brb_threshold_val *reg_th_config =
-		&config_val.pauseable_th;
-	struct bnx2x_pfc_brb_e3b0_val e3b0_val = {0};
-	const int set_pfc = params->feature_config_flags &
-		FEATURE_CONFIG_PFC_ENABLED;
-	const u8 pfc_enabled = (set_pfc && pfc_params);
-	int bnx2x_status = 0;
-	u8 port = params->port;
-
-	/* default - pause configuration */
-	reg_th_config = &config_val.pauseable_th;
-	bnx2x_status = bnx2x_pfc_brb_get_config_params(params, &config_val);
-	if (bnx2x_status)
-		return bnx2x_status;
-
-	if (pfc_enabled) {
-		/* First COS */
-		if (pfc_params->cos0_pauseable)
-			reg_th_config = &config_val.pauseable_th;
-		else
-			reg_th_config = &config_val.non_pauseable_th;
-	} else
-		reg_th_config = &config_val.default_class0;
-	/* The number of free blocks below which the pause signal to class 0
-	 * of MAC #n is asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_PAUSE_0_XOFF_THRESHOLD_1 :
-	       BRB1_REG_PAUSE_0_XOFF_THRESHOLD_0 ,
-	       reg_th_config->pause_xoff);
-	/* The number of free blocks above which the pause signal to class 0
-	 * of MAC #n is de-asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_PAUSE_0_XON_THRESHOLD_1 :
-	       BRB1_REG_PAUSE_0_XON_THRESHOLD_0 , reg_th_config->pause_xon);
-	/* The number of free blocks below which the full signal to class 0
-	 * of MAC #n is asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_FULL_0_XOFF_THRESHOLD_1 :
-	       BRB1_REG_FULL_0_XOFF_THRESHOLD_0 , reg_th_config->full_xoff);
-	/* The number of free blocks above which the full signal to class 0
-	 * of MAC #n is de-asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_FULL_0_XON_THRESHOLD_1 :
-	       BRB1_REG_FULL_0_XON_THRESHOLD_0 , reg_th_config->full_xon);
-
-	if (pfc_enabled) {
-		/* Second COS */
-		if (pfc_params->cos1_pauseable)
-			reg_th_config = &config_val.pauseable_th;
-		else
-			reg_th_config = &config_val.non_pauseable_th;
-	} else
-		reg_th_config = &config_val.default_class1;
-	/* The number of free blocks below which the pause signal to
-	 * class 1 of MAC #n is asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_PAUSE_1_XOFF_THRESHOLD_1 :
-	       BRB1_REG_PAUSE_1_XOFF_THRESHOLD_0,
-	       reg_th_config->pause_xoff);
-
-	/* The number of free blocks above which the pause signal to
-	 * class 1 of MAC #n is de-asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_PAUSE_1_XON_THRESHOLD_1 :
-	       BRB1_REG_PAUSE_1_XON_THRESHOLD_0,
-	       reg_th_config->pause_xon);
-	/* The number of free blocks below which the full signal to
-	 * class 1 of MAC #n is asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_FULL_1_XOFF_THRESHOLD_1 :
-	       BRB1_REG_FULL_1_XOFF_THRESHOLD_0,
-	       reg_th_config->full_xoff);
-	/* The number of free blocks above which the full signal to
-	 * class 1 of MAC #n is de-asserted. n=0,1
-	 */
-	REG_WR(bp, (port) ? BRB1_REG_FULL_1_XON_THRESHOLD_1 :
-	       BRB1_REG_FULL_1_XON_THRESHOLD_0,
-	       reg_th_config->full_xon);
-
-	if (CHIP_IS_E3B0(bp)) {
-		bnx2x_pfc_brb_get_e3b0_config_params(
-			params,
-			&e3b0_val,
-			pfc_params,
-			pfc_enabled);
-
-		REG_WR(bp, BRB1_REG_PER_CLASS_GUARANTY_MODE,
-			   e3b0_val.per_class_guaranty_mode);
-
-		/* The hysteresis on the guarantied buffer space for the Lb
-		 * port before signaling XON.
-		 */
-		REG_WR(bp, BRB1_REG_LB_GUARANTIED_HYST,
-			   e3b0_val.lb_guarantied_hyst);
-
-		/* The number of free blocks below which the full signal to the
-		 * LB port is asserted.
-		 */
-		REG_WR(bp, BRB1_REG_FULL_LB_XOFF_THRESHOLD,
-		       e3b0_val.full_lb_xoff_th);
-		/* The number of free blocks above which the full signal to the
-		 * LB port is de-asserted.
-		 */
-		REG_WR(bp, BRB1_REG_FULL_LB_XON_THRESHOLD,
-		       e3b0_val.full_lb_xon_threshold);
-		/* The number of blocks guarantied for the MAC #n port. n=0,1
-		 */
-
-		/* The number of blocks guarantied for the LB port. */
-		REG_WR(bp, BRB1_REG_LB_GUARANTIED,
-		       e3b0_val.lb_guarantied);
-
-		/* The number of blocks guarantied for the MAC #n port. */
-		REG_WR(bp, BRB1_REG_MAC_GUARANTIED_0,
-		       2 * e3b0_val.mac_0_class_t_guarantied);
-		REG_WR(bp, BRB1_REG_MAC_GUARANTIED_1,
-		       2 * e3b0_val.mac_1_class_t_guarantied);
-		/* The number of blocks guarantied for class #t in MAC0. t=0,1
-		 */
-		REG_WR(bp, BRB1_REG_MAC_0_CLASS_0_GUARANTIED,
-		       e3b0_val.mac_0_class_t_guarantied);
-		REG_WR(bp, BRB1_REG_MAC_0_CLASS_1_GUARANTIED,
-		       e3b0_val.mac_0_class_t_guarantied);
-		/* The hysteresis on the guarantied buffer space for class in
-		 * MAC0.  t=0,1
-		 */
-		REG_WR(bp, BRB1_REG_MAC_0_CLASS_0_GUARANTIED_HYST,
-		       e3b0_val.mac_0_class_t_guarantied_hyst);
-		REG_WR(bp, BRB1_REG_MAC_0_CLASS_1_GUARANTIED_HYST,
-		       e3b0_val.mac_0_class_t_guarantied_hyst);
-
-		/* The number of blocks guarantied for class #t in MAC1.t=0,1
-		 */
-		REG_WR(bp, BRB1_REG_MAC_1_CLASS_0_GUARANTIED,
-		       e3b0_val.mac_1_class_t_guarantied);
-		REG_WR(bp, BRB1_REG_MAC_1_CLASS_1_GUARANTIED,
-		       e3b0_val.mac_1_class_t_guarantied);
-		/* The hysteresis on the guarantied buffer space for class #t
-		 * in MAC1.  t=0,1
-		 */
-		REG_WR(bp, BRB1_REG_MAC_1_CLASS_0_GUARANTIED_HYST,
-		       e3b0_val.mac_1_class_t_guarantied_hyst);
-		REG_WR(bp, BRB1_REG_MAC_1_CLASS_1_GUARANTIED_HYST,
-		       e3b0_val.mac_1_class_t_guarantied_hyst);
-	}
-
-	return bnx2x_status;
-}
-
 /******************************************************************************
 * Description:
 *  This function is needed because NIG ARB_CREDIT_WEIGHT_X are
@@ -2529,16 +2087,6 @@ static void bnx2x_update_mng(struct link_params *params, u32 link_status)
 			port_mb[params->port].link_status), link_status);
 }
 
-static void bnx2x_update_mng_eee(struct link_params *params, u32 eee_status)
-{
-	struct bnx2x *bp = params->bp;
-
-	if (bnx2x_eee_has_cap(params))
-		REG_WR(bp, params->shmem2_base +
-		       offsetof(struct shmem2_region,
-				eee_status[params->port]), eee_status);
-}
-
 static void bnx2x_update_pfc_nig(struct link_params *params,
 		struct link_vars *vars,
 		struct bnx2x_nig_brb_pfc_port_params *nig_params)
@@ -2658,18 +2206,15 @@ int bnx2x_update_pfc(struct link_params *params,
 	/* Update NIG params */
 	bnx2x_update_pfc_nig(params, vars, pfc_params);
 
-	/* Update BRB params */
-	bnx2x_status = bnx2x_update_pfc_brb(params, vars, pfc_params);
-	if (bnx2x_status)
-		return bnx2x_status;
-
 	if (!vars->link_up)
 		return bnx2x_status;
 
 	DP(NETIF_MSG_LINK, "About to update PFC in BMAC\n");
-	if (CHIP_IS_E3(bp))
-		bnx2x_update_pfc_xmac(params, vars, 0);
-	else {
+
+	if (CHIP_IS_E3(bp)) {
+		if (vars->mac_type == MAC_TYPE_XMAC)
+			bnx2x_update_pfc_xmac(params, vars, 0);
+	} else {
 		val = REG_RD(bp, MISC_REG_RESET_REG_2);
 		if ((val &
 		     (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port))
@@ -2825,16 +2370,18 @@ static int bnx2x_bmac2_enable(struct link_params *params,
 
 static int bnx2x_bmac_enable(struct link_params *params,
 			     struct link_vars *vars,
-			     u8 is_lb)
+			     u8 is_lb, u8 reset_bmac)
 {
 	int rc = 0;
 	u8 port = params->port;
 	struct bnx2x *bp = params->bp;
 	u32 val;
 	/* Reset and unreset the BigMac */
-	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
-	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
-	usleep_range(1000, 2000);
+	if (reset_bmac) {
+		REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
+		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
+		usleep_range(1000, 2000);
+	}
 
 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
@@ -2866,37 +2413,28 @@ static int bnx2x_bmac_enable(struct link_params *params,
 	return rc;
 }
 
-static void bnx2x_bmac_rx_disable(struct bnx2x *bp, u8 port)
+static void bnx2x_set_bmac_rx(struct bnx2x *bp, u32 chip_id, u8 port, u8 en)
 {
 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
 			NIG_REG_INGRESS_BMAC0_MEM;
 	u32 wb_data[2];
 	u32 nig_bmac_enable = REG_RD(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4);
 
+	if (CHIP_IS_E2(bp))
+		bmac_addr += BIGMAC2_REGISTER_BMAC_CONTROL;
+	else
+		bmac_addr += BIGMAC_REGISTER_BMAC_CONTROL;
 	/* Only if the bmac is out of reset */
 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
 			(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port) &&
 	    nig_bmac_enable) {
-
-		if (CHIP_IS_E2(bp)) {
-			/* Clear Rx Enable bit in BMAC_CONTROL register */
-			REG_RD_DMAE(bp, bmac_addr +
-				    BIGMAC2_REGISTER_BMAC_CONTROL,
-				    wb_data, 2);
-			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
-			REG_WR_DMAE(bp, bmac_addr +
-				    BIGMAC2_REGISTER_BMAC_CONTROL,
-				    wb_data, 2);
-		} else {
-			/* Clear Rx Enable bit in BMAC_CONTROL register */
-			REG_RD_DMAE(bp, bmac_addr +
-					BIGMAC_REGISTER_BMAC_CONTROL,
-					wb_data, 2);
+		/* Clear Rx Enable bit in BMAC_CONTROL register */
+		REG_RD_DMAE(bp, bmac_addr, wb_data, 2);
+		if (en)
+			wb_data[0] |= BMAC_CONTROL_RX_ENABLE;
+		else
 			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
-			REG_WR_DMAE(bp, bmac_addr +
-					BIGMAC_REGISTER_BMAC_CONTROL,
-					wb_data, 2);
-		}
+		REG_WR_DMAE(bp, bmac_addr, wb_data, 2);
 		usleep_range(1000, 2000);
 	}
 }
@@ -3231,6 +2769,245 @@ static int bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
 			       EMAC_MDIO_STATUS_10MB);
 	return rc;
 }
+
+/******************************************************************/
+/*			EEE section				   */
+/******************************************************************/
+static u8 bnx2x_eee_has_cap(struct link_params *params)
+{
+	struct bnx2x *bp = params->bp;
+
+	if (REG_RD(bp, params->shmem2_base) <=
+		   offsetof(struct shmem2_region, eee_status[params->port]))
+		return 0;
+
+	return 1;
+}
+
+static int bnx2x_eee_nvram_to_time(u32 nvram_mode, u32 *idle_timer)
+{
+	switch (nvram_mode) {
+	case PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED:
+		*idle_timer = EEE_MODE_NVRAM_BALANCED_TIME;
+		break;
+	case PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE:
+		*idle_timer = EEE_MODE_NVRAM_AGGRESSIVE_TIME;
+		break;
+	case PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY:
+		*idle_timer = EEE_MODE_NVRAM_LATENCY_TIME;
+		break;
+	default:
+		*idle_timer = 0;
+		break;
+	}
+
+	return 0;
+}
+
+static int bnx2x_eee_time_to_nvram(u32 idle_timer, u32 *nvram_mode)
+{
+	switch (idle_timer) {
+	case EEE_MODE_NVRAM_BALANCED_TIME:
+		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED;
+		break;
+	case EEE_MODE_NVRAM_AGGRESSIVE_TIME:
+		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE;
+		break;
+	case EEE_MODE_NVRAM_LATENCY_TIME:
+		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY;
+		break;
+	default:
+		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED;
+		break;
+	}
+
+	return 0;
+}
+
+static u32 bnx2x_eee_calc_timer(struct link_params *params)
+{
+	u32 eee_mode, eee_idle;
+	struct bnx2x *bp = params->bp;
+
+	if (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) {
+		if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
+			/* time value in eee_mode --> used directly*/
+			eee_idle = params->eee_mode & EEE_MODE_TIMER_MASK;
+		} else {
+			/* hsi value in eee_mode --> time */
+			if (bnx2x_eee_nvram_to_time(params->eee_mode &
+						    EEE_MODE_NVRAM_MASK,
+						    &eee_idle))
+				return 0;
+		}
+	} else {
+		/* hsi values in nvram --> time*/
+		eee_mode = ((REG_RD(bp, params->shmem_base +
+				    offsetof(struct shmem_region, dev_info.
+				    port_feature_config[params->port].
+				    eee_power_mode)) &
+			     PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
+			    PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
+
+		if (bnx2x_eee_nvram_to_time(eee_mode, &eee_idle))
+			return 0;
+	}
+
+	return eee_idle;
+}
+
+static int bnx2x_eee_set_timers(struct link_params *params,
+				   struct link_vars *vars)
+{
+	u32 eee_idle = 0, eee_mode;
+	struct bnx2x *bp = params->bp;
+
+	eee_idle = bnx2x_eee_calc_timer(params);
+
+	if (eee_idle) {
+		REG_WR(bp, MISC_REG_CPMU_LP_IDLE_THR_P0 + (params->port << 2),
+		       eee_idle);
+	} else if ((params->eee_mode & EEE_MODE_ENABLE_LPI) &&
+		   (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) &&
+		   (params->eee_mode & EEE_MODE_OUTPUT_TIME)) {
+		DP(NETIF_MSG_LINK, "Error: Tx LPI is enabled with timer 0\n");
+		return -EINVAL;
+	}
+
+	vars->eee_status &= ~(SHMEM_EEE_TIMER_MASK | SHMEM_EEE_TIME_OUTPUT_BIT);
+	if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
+		/* eee_idle in 1u --> eee_status in 16u */
+		eee_idle >>= 4;
+		vars->eee_status |= (eee_idle & SHMEM_EEE_TIMER_MASK) |
+				    SHMEM_EEE_TIME_OUTPUT_BIT;
+	} else {
+		if (bnx2x_eee_time_to_nvram(eee_idle, &eee_mode))
+			return -EINVAL;
+		vars->eee_status |= eee_mode;
+	}
+
+	return 0;
+}
+
+static int bnx2x_eee_initial_config(struct link_params *params,
+				     struct link_vars *vars, u8 mode)
+{
+	vars->eee_status |= ((u32) mode) << SHMEM_EEE_SUPPORTED_SHIFT;
+
+	/* Propogate params' bits --> vars (for migration exposure) */
+	if (params->eee_mode & EEE_MODE_ENABLE_LPI)
+		vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
+	else
+		vars->eee_status &= ~SHMEM_EEE_LPI_REQUESTED_BIT;
+
+	if (params->eee_mode & EEE_MODE_ADV_LPI)
+		vars->eee_status |= SHMEM_EEE_REQUESTED_BIT;
+	else
+		vars->eee_status &= ~SHMEM_EEE_REQUESTED_BIT;
+
+	return bnx2x_eee_set_timers(params, vars);
+}
+
+static int bnx2x_eee_disable(struct bnx2x_phy *phy,
+				struct link_params *params,
+				struct link_vars *vars)
+{
+	struct bnx2x *bp = params->bp;
+
+	/* Make Certain LPI is disabled */
+	REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2), 0);
+
+	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0x0);
+
+	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
+
+	return 0;
+}
+
+static int bnx2x_eee_advertise(struct bnx2x_phy *phy,
+				  struct link_params *params,
+				  struct link_vars *vars, u8 modes)
+{
+	struct bnx2x *bp = params->bp;
+	u16 val = 0;
+
+	/* Mask events preventing LPI generation */
+	REG_WR(bp, MISC_REG_CPMU_LP_MASK_EXT_P0 + (params->port << 2), 0xfc20);
+
+	if (modes & SHMEM_EEE_10G_ADV) {
+		DP(NETIF_MSG_LINK, "Advertise 10GBase-T EEE\n");
+		val |= 0x8;
+	}
+	if (modes & SHMEM_EEE_1G_ADV) {
+		DP(NETIF_MSG_LINK, "Advertise 1GBase-T EEE\n");
+		val |= 0x4;
+	}
+
+	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, val);
+
+	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
+	vars->eee_status |= (modes << SHMEM_EEE_ADV_STATUS_SHIFT);
+
+	return 0;
+}
+
+static void bnx2x_update_mng_eee(struct link_params *params, u32 eee_status)
+{
+	struct bnx2x *bp = params->bp;
+
+	if (bnx2x_eee_has_cap(params))
+		REG_WR(bp, params->shmem2_base +
+		       offsetof(struct shmem2_region,
+				eee_status[params->port]), eee_status);
+}
+
+static void bnx2x_eee_an_resolve(struct bnx2x_phy *phy,
+				  struct link_params *params,
+				  struct link_vars *vars)
+{
+	struct bnx2x *bp = params->bp;
+	u16 adv = 0, lp = 0;
+	u32 lp_adv = 0;
+	u8 neg = 0;
+
+	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, &adv);
+	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_LP_EEE_ADV, &lp);
+
+	if (lp & 0x2) {
+		lp_adv |= SHMEM_EEE_100M_ADV;
+		if (adv & 0x2) {
+			if (vars->line_speed == SPEED_100)
+				neg = 1;
+			DP(NETIF_MSG_LINK, "EEE negotiated - 100M\n");
+		}
+	}
+	if (lp & 0x14) {
+		lp_adv |= SHMEM_EEE_1G_ADV;
+		if (adv & 0x14) {
+			if (vars->line_speed == SPEED_1000)
+				neg = 1;
+			DP(NETIF_MSG_LINK, "EEE negotiated - 1G\n");
+		}
+	}
+	if (lp & 0x68) {
+		lp_adv |= SHMEM_EEE_10G_ADV;
+		if (adv & 0x68) {
+			if (vars->line_speed == SPEED_10000)
+				neg = 1;
+			DP(NETIF_MSG_LINK, "EEE negotiated - 10G\n");
+		}
+	}
+
+	vars->eee_status &= ~SHMEM_EEE_LP_ADV_STATUS_MASK;
+	vars->eee_status |= (lp_adv << SHMEM_EEE_LP_ADV_STATUS_SHIFT);
+
+	if (neg) {
+		DP(NETIF_MSG_LINK, "EEE is active\n");
+		vars->eee_status |= SHMEM_EEE_ACTIVE_BIT;
+	}
+
+}
+
 /******************************************************************/
 /*			BSC access functions from E3	          */
 /******************************************************************/
@@ -3752,6 +3529,19 @@ static u8 bnx2x_ext_phy_resolve_fc(struct bnx2x_phy *phy,
  * init configuration, and set/clear SGMII flag. Internal
  * phy init is done purely in phy_init stage.
  */
+
+static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy,
+					       struct link_params *params)
+{
+	struct bnx2x *bp = params->bp;
+
+	DP(NETIF_MSG_LINK, "Configure WC for LPI pass through\n");
+	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
+			 MDIO_WC_REG_EEE_COMBO_CONTROL0, 0x7c);
+	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
+				 MDIO_WC_REG_DIGITAL4_MISC5, 0xc000);
+}
+
 static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
 					struct link_params *params,
 					struct link_vars *vars) {
@@ -4011,13 +3801,7 @@ static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy,
 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
 				 MDIO_WC_REG_DIGITAL4_MISC3, 0x8080);
 
-	/* Enable LPI pass through */
-	DP(NETIF_MSG_LINK, "Configure WC for LPI pass through\n");
-	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
-			 MDIO_WC_REG_EEE_COMBO_CONTROL0,
-			 0x7c);
-	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
-				 MDIO_WC_REG_DIGITAL4_MISC5, 0xc000);
+	bnx2x_warpcore_set_lpi_passthrough(phy, params);
 
 	/* 10G XFI Full Duplex */
 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
@@ -4114,6 +3898,8 @@ static void bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy *phy,
 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
 			 MDIO_WC_REG_RX66_CONTROL, val16 & ~(3<<13));
 
+	bnx2x_warpcore_set_lpi_passthrough(phy, params);
+
 	if (always_autoneg || phy->req_line_speed == SPEED_AUTO_NEG) {
 		/* SGMII Autoneg */
 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
@@ -4407,7 +4193,7 @@ static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy,
 			   "serdes_net_if = 0x%x\n",
 		       vars->line_speed, serdes_net_if);
 	bnx2x_set_aer_mmd(params, phy);
-
+	bnx2x_warpcore_reset_lane(bp, phy, 1);
 	vars->phy_flags |= PHY_XGXS_FLAG;
 	if ((serdes_net_if == PORT_HW_CFG_NET_SERDES_IF_SGMII) ||
 	    (phy->req_line_speed &&
@@ -4716,6 +4502,10 @@ void bnx2x_link_status_update(struct link_params *params,
 	vars->link_status = REG_RD(bp, params->shmem_base +
 				   offsetof(struct shmem_region,
 					    port_mb[port].link_status));
+	if (bnx2x_eee_has_cap(params))
+		vars->eee_status = REG_RD(bp, params->shmem2_base +
+					  offsetof(struct shmem2_region,
+						   eee_status[params->port]));
 
 	vars->phy_flags = PHY_XGXS_FLAG;
 	bnx2x_sync_link(params, vars);
@@ -5432,7 +5222,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
 		switch (speed_mask) {
 		case GP_STATUS_10M:
 			vars->line_speed = SPEED_10;
-			if (vars->duplex == DUPLEX_FULL)
+			if (is_duplex == DUPLEX_FULL)
 				vars->link_status |= LINK_10TFD;
 			else
 				vars->link_status |= LINK_10THD;
@@ -5440,7 +5230,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
 
 		case GP_STATUS_100M:
 			vars->line_speed = SPEED_100;
-			if (vars->duplex == DUPLEX_FULL)
+			if (is_duplex == DUPLEX_FULL)
 				vars->link_status |= LINK_100TXFD;
 			else
 				vars->link_status |= LINK_100TXHD;
@@ -5449,7 +5239,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
 		case GP_STATUS_1G:
 		case GP_STATUS_1G_KX:
 			vars->line_speed = SPEED_1000;
-			if (vars->duplex == DUPLEX_FULL)
+			if (is_duplex == DUPLEX_FULL)
 				vars->link_status |= LINK_1000TFD;
 			else
 				vars->link_status |= LINK_1000THD;
@@ -5457,7 +5247,7 @@ static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
 
 		case GP_STATUS_2_5G:
 			vars->line_speed = SPEED_2500;
-			if (vars->duplex == DUPLEX_FULL)
+			if (is_duplex == DUPLEX_FULL)
 				vars->link_status |= LINK_2500TFD;
 			else
 				vars->link_status |= LINK_2500THD;
@@ -5531,6 +5321,7 @@ static int bnx2x_link_settings_status(struct bnx2x_phy *phy,
 
 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS) {
 		if (SINGLE_MEDIA_DIRECT(params)) {
+			vars->duplex = duplex;
 			bnx2x_flow_ctrl_resolve(phy, params, vars, gp_status);
 			if (phy->req_line_speed == SPEED_AUTO_NEG)
 				bnx2x_xgxs_an_resolve(phy, params, vars,
@@ -5625,6 +5416,7 @@ static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
 					LINK_STATUS_PARALLEL_DETECTION_USED;
 			}
 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
+			vars->duplex = duplex;
 		}
 	}
 
@@ -6526,25 +6318,21 @@ static int bnx2x_update_link_down(struct link_params *params,
 	usleep_range(10000, 20000);
 	/* Reset BigMac/Xmac */
 	if (CHIP_IS_E1x(bp) ||
-	    CHIP_IS_E2(bp)) {
-		bnx2x_bmac_rx_disable(bp, params->port);
-		REG_WR(bp, GRCBASE_MISC +
-		       MISC_REGISTERS_RESET_REG_2_CLEAR,
-	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
-	}
+	    CHIP_IS_E2(bp))
+		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 0);
+
 	if (CHIP_IS_E3(bp)) {
 		/* Prevent LPI Generation by chip */
 		REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2),
 		       0);
-		REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 0);
 		REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 + (params->port << 2),
 		       0);
 		vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
 				      SHMEM_EEE_ACTIVE_BIT);
 
 		bnx2x_update_mng_eee(params, vars->eee_status);
-		bnx2x_xmac_disable(params);
-		bnx2x_umac_disable(params);
+		bnx2x_set_xmac_rxtx(params, 0);
+		bnx2x_set_umac_rxtx(params, 0);
 	}
 
 	return 0;
@@ -6596,7 +6384,7 @@ static int bnx2x_update_link_up(struct link_params *params,
 	if ((CHIP_IS_E1x(bp) ||
 	     CHIP_IS_E2(bp))) {
 		if (link_10g) {
-			if (bnx2x_bmac_enable(params, vars, 0) ==
+			if (bnx2x_bmac_enable(params, vars, 0, 1) ==
 			    -ESRCH) {
 				DP(NETIF_MSG_LINK, "Found errors on BMAC\n");
 				vars->link_up = 0;
@@ -7203,6 +6991,22 @@ static void bnx2x_8073_set_pause_cl37(struct link_params *params,
 	msleep(500);
 }
 
+static void bnx2x_8073_specific_func(struct bnx2x_phy *phy,
+				     struct link_params *params,
+				     u32 action)
+{
+	struct bnx2x *bp = params->bp;
+	switch (action) {
+	case PHY_INIT:
+		/* Enable LASI */
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, (1<<2));
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,  0x0004);
+		break;
+	}
+}
+
 static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
 				  struct link_params *params,
 				  struct link_vars *vars)
@@ -7223,12 +7027,7 @@ static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
 
-	/* Enable LASI */
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, (1<<2));
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,  0x0004);
-
+	bnx2x_8073_specific_func(phy, params, PHY_INIT);
 	bnx2x_8073_set_pause_cl37(params, phy, vars);
 
 	bnx2x_cl45_read(bp, phy,
@@ -8263,7 +8062,7 @@ static void bnx2x_8727_specific_func(struct bnx2x_phy *phy,
 				     u32 action)
 {
 	struct bnx2x *bp = params->bp;
-
+	u16 val;
 	switch (action) {
 	case DISABLE_TX:
 		bnx2x_sfp_set_transmitter(params, phy, 0);
@@ -8272,6 +8071,40 @@ static void bnx2x_8727_specific_func(struct bnx2x_phy *phy,
 		if (!(phy->flags & FLAGS_SFP_NOT_APPROVED))
 			bnx2x_sfp_set_transmitter(params, phy, 1);
 		break;
+	case PHY_INIT:
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
+				 (1<<2) | (1<<5));
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
+				 0);
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x0006);
+		/* Make MOD_ABS give interrupt on change */
+		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
+				MDIO_PMA_REG_8727_PCS_OPT_CTRL,
+				&val);
+		val |= (1<<12);
+		if (phy->flags & FLAGS_NOC)
+			val |= (3<<5);
+		/* Set 8727 GPIOs to input to allow reading from the 8727 GPIO0
+		 * status which reflect SFP+ module over-current
+		 */
+		if (!(phy->flags & FLAGS_NOC))
+			val &= 0xff8f; /* Reset bits 4-6 */
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL,
+				 val);
+
+		/* Set 2-wire transfer rate of SFP+ module EEPROM
+		 * to 100Khz since some DACs(direct attached cables) do
+		 * not work at 400Khz.
+		 */
+		bnx2x_cl45_write(bp, phy,
+				 MDIO_PMA_DEVAD,
+				 MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
+				 0xa001);
+		break;
 	default:
 		DP(NETIF_MSG_LINK, "Function 0x%x not supported by 8727\n",
 		   action);
@@ -9054,28 +8887,15 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
 				  struct link_vars *vars)
 {
 	u32 tx_en_mode;
-	u16 tmp1, val, mod_abs, tmp2;
-	u16 rx_alarm_ctrl_val;
-	u16 lasi_ctrl_val;
+	u16 tmp1, mod_abs, tmp2;
 	struct bnx2x *bp = params->bp;
 	/* Enable PMD link, MOD_ABS_FLT, and 1G link alarm */
 
 	bnx2x_wait_reset_complete(bp, phy, params);
-	rx_alarm_ctrl_val = (1<<2) | (1<<5) ;
-	/* Should be 0x6 to enable XS on Tx side. */
-	lasi_ctrl_val = 0x0006;
 
 	DP(NETIF_MSG_LINK, "Initializing BCM8727\n");
-	/* Enable LASI */
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
-			 rx_alarm_ctrl_val);
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
-			 0);
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, lasi_ctrl_val);
 
+	bnx2x_8727_specific_func(phy, params, PHY_INIT);
 	/* Initially configure MOD_ABS to interrupt when module is
 	 * presence( bit 8)
 	 */
@@ -9091,25 +8911,9 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
 	bnx2x_cl45_write(bp, phy,
 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
 
-
 	/* Enable/Disable PHY transmitter output */
 	bnx2x_set_disable_pmd_transmit(params, phy, 0);
 
-	/* Make MOD_ABS give interrupt on change */
-	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL,
-			&val);
-	val |= (1<<12);
-	if (phy->flags & FLAGS_NOC)
-		val |= (3<<5);
-
-	/* Set 8727 GPIOs to input to allow reading from the 8727 GPIO0
-	 * status which reflect SFP+ module over-current
-	 */
-	if (!(phy->flags & FLAGS_NOC))
-		val &= 0xff8f; /* Reset bits 4-6 */
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL, val);
-
 	bnx2x_8727_power_module(bp, phy, 1);
 
 	bnx2x_cl45_read(bp, phy,
@@ -9119,13 +8923,7 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
 
 	bnx2x_8727_config_speed(phy, params);
-	/* Set 2-wire transfer rate of SFP+ module EEPROM
-	 * to 100Khz since some DACs(direct attached cables) do
-	 * not work at 400Khz.
-	 */
-	bnx2x_cl45_write(bp, phy,
-			 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
-			 0xa001);
+
 
 	/* Set TX PreEmphasis if needed */
 	if ((params->feature_config_flags &
@@ -9554,6 +9352,29 @@ static void bnx2x_848xx_set_led(struct bnx2x *bp,
 			 0xFFFB, 0xFFFD);
 }
 
+static void bnx2x_848xx_specific_func(struct bnx2x_phy *phy,
+				      struct link_params *params,
+				      u32 action)
+{
+	struct bnx2x *bp = params->bp;
+	switch (action) {
+	case PHY_INIT:
+		if (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
+			/* Save spirom version */
+			bnx2x_save_848xx_spirom_version(phy, bp, params->port);
+		}
+		/* This phy uses the NIG latch mechanism since link indication
+		 * arrives through its LED4 and not via its LASI signal, so we
+		 * get steady signal instead of clear on read
+		 */
+		bnx2x_bits_en(bp, NIG_REG_LATCH_BC_0 + params->port*4,
+			      1 << NIG_LATCH_BC_ENABLE_MI_INT);
+
+		bnx2x_848xx_set_led(bp, phy);
+		break;
+	}
+}
+
 static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
 				       struct link_params *params,
 				       struct link_vars *vars)
@@ -9561,22 +9382,10 @@ static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
 	struct bnx2x *bp = params->bp;
 	u16 autoneg_val, an_1000_val, an_10_100_val, an_10g_val;
 
-	if (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
-		/* Save spirom version */
-		bnx2x_save_848xx_spirom_version(phy, bp, params->port);
-	}
-	/* This phy uses the NIG latch mechanism since link indication
-	 * arrives through its LED4 and not via its LASI signal, so we
-	 * get steady signal instead of clear on read
-	 */
-	bnx2x_bits_en(bp, NIG_REG_LATCH_BC_0 + params->port*4,
-		      1 << NIG_LATCH_BC_ENABLE_MI_INT);
-
+	bnx2x_848xx_specific_func(phy, params, PHY_INIT);
 	bnx2x_cl45_write(bp, phy,
 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0000);
 
-	bnx2x_848xx_set_led(bp, phy);
-
 	/* set 1000 speed advertisement */
 	bnx2x_cl45_read(bp, phy,
 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
@@ -9883,39 +9692,6 @@ static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
 	return 0;
 }
 
-static int bnx2x_8483x_eee_timers(struct link_params *params,
-				   struct link_vars *vars)
-{
-	u32 eee_idle = 0, eee_mode;
-	struct bnx2x *bp = params->bp;
-
-	eee_idle = bnx2x_eee_calc_timer(params);
-
-	if (eee_idle) {
-		REG_WR(bp, MISC_REG_CPMU_LP_IDLE_THR_P0 + (params->port << 2),
-		       eee_idle);
-	} else if ((params->eee_mode & EEE_MODE_ENABLE_LPI) &&
-		   (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) &&
-		   (params->eee_mode & EEE_MODE_OUTPUT_TIME)) {
-		DP(NETIF_MSG_LINK, "Error: Tx LPI is enabled with timer 0\n");
-		return -EINVAL;
-	}
-
-	vars->eee_status &= ~(SHMEM_EEE_TIMER_MASK | SHMEM_EEE_TIME_OUTPUT_BIT);
-	if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
-		/* eee_idle in 1u --> eee_status in 16u */
-		eee_idle >>= 4;
-		vars->eee_status |= (eee_idle & SHMEM_EEE_TIMER_MASK) |
-				    SHMEM_EEE_TIME_OUTPUT_BIT;
-	} else {
-		if (bnx2x_eee_time_to_nvram(eee_idle, &eee_mode))
-			return -EINVAL;
-		vars->eee_status |= eee_mode;
-	}
-
-	return 0;
-}
-
 static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
 				   struct link_params *params,
 				   struct link_vars *vars)
@@ -9926,10 +9702,6 @@ static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
 
 	DP(NETIF_MSG_LINK, "Don't Advertise 10GBase-T EEE\n");
 
-	/* Make Certain LPI is disabled */
-	REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2), 0);
-	REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 0);
-
 	/* Prevent Phy from working in EEE and advertising it */
 	rc = bnx2x_84833_cmd_hdlr(phy, params,
 		PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
@@ -9938,10 +9710,7 @@ static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
 		return rc;
 	}
 
-	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0);
-	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
-
-	return 0;
+	return bnx2x_eee_disable(phy, params, vars);
 }
 
 static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
@@ -9952,8 +9721,6 @@ static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
 	struct bnx2x *bp = params->bp;
 	u16 cmd_args = 1;
 
-	DP(NETIF_MSG_LINK, "Advertise 10GBase-T EEE\n");
-
 	rc = bnx2x_84833_cmd_hdlr(phy, params,
 		PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
 	if (rc) {
@@ -9961,15 +9728,7 @@ static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
 		return rc;
 	}
 
-	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0x8);
-
-	/* Mask events preventing LPI generation */
-	REG_WR(bp, MISC_REG_CPMU_LP_MASK_EXT_P0 + (params->port << 2), 0xfc20);
-
-	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
-	vars->eee_status |= (SHMEM_EEE_10G_ADV << SHMEM_EEE_ADV_STATUS_SHIFT);
-
-	return 0;
+	return bnx2x_eee_advertise(phy, params, vars, SHMEM_EEE_10G_ADV);
 }
 
 #define PHY84833_CONSTANT_LATENCY 1193
@@ -10101,22 +9860,10 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 			MDIO_84833_TOP_CFG_FW_REV, &val);
 
 	/* Configure EEE support */
-	if ((val >= MDIO_84833_TOP_CFG_FW_EEE) && bnx2x_eee_has_cap(params)) {
-		phy->flags |= FLAGS_EEE_10GBT;
-		vars->eee_status |= SHMEM_EEE_10G_ADV <<
-				    SHMEM_EEE_SUPPORTED_SHIFT;
-		/* Propogate params' bits --> vars (for migration exposure) */
-		if (params->eee_mode & EEE_MODE_ENABLE_LPI)
-			vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
-		else
-			vars->eee_status &= ~SHMEM_EEE_LPI_REQUESTED_BIT;
-
-		if (params->eee_mode & EEE_MODE_ADV_LPI)
-			vars->eee_status |= SHMEM_EEE_REQUESTED_BIT;
-		else
-			vars->eee_status &= ~SHMEM_EEE_REQUESTED_BIT;
-
-		rc = bnx2x_8483x_eee_timers(params, vars);
+	if ((val >= MDIO_84833_TOP_CFG_FW_EEE) &&
+	    (val != MDIO_84833_TOP_CFG_FW_NO_EEE) &&
+	    bnx2x_eee_has_cap(params)) {
+		rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_10G_ADV);
 		if (rc) {
 			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
 			bnx2x_8483x_disable_eee(phy, params, vars);
@@ -10135,7 +9882,6 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
 			return rc;
 		}
 	} else {
-		phy->flags &= ~FLAGS_EEE_10GBT;
 		vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
 	}
 
@@ -10274,29 +10020,8 @@ static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
 
 		/* Determine if EEE was negotiated */
-		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
-			u32 eee_shmem = 0;
-
-			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
-					MDIO_AN_REG_EEE_ADV, &val1);
-			bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
-					MDIO_AN_REG_LP_EEE_ADV, &val2);
-			if ((val1 & val2) & 0x8) {
-				DP(NETIF_MSG_LINK, "EEE negotiated\n");
-				vars->eee_status |= SHMEM_EEE_ACTIVE_BIT;
-			}
-
-			if (val2 & 0x12)
-				eee_shmem |= SHMEM_EEE_100M_ADV;
-			if (val2 & 0x4)
-				eee_shmem |= SHMEM_EEE_1G_ADV;
-			if (val2 & 0x68)
-				eee_shmem |= SHMEM_EEE_10G_ADV;
-
-			vars->eee_status &= ~SHMEM_EEE_LP_ADV_STATUS_MASK;
-			vars->eee_status |= (eee_shmem <<
-					     SHMEM_EEE_LP_ADV_STATUS_SHIFT);
-		}
+		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833)
+			bnx2x_eee_an_resolve(phy, params, vars);
 	}
 
 	return link_up;
@@ -10565,6 +10290,35 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
 /******************************************************************/
 /*			54618SE PHY SECTION			  */
 /******************************************************************/
+static void bnx2x_54618se_specific_func(struct bnx2x_phy *phy,
+					struct link_params *params,
+					u32 action)
+{
+	struct bnx2x *bp = params->bp;
+	u16 temp;
+	switch (action) {
+	case PHY_INIT:
+		/* Configure LED4: set to INTR (0x6). */
+		/* Accessing shadow register 0xe. */
+		bnx2x_cl22_write(bp, phy,
+				 MDIO_REG_GPHY_SHADOW,
+				 MDIO_REG_GPHY_SHADOW_LED_SEL2);
+		bnx2x_cl22_read(bp, phy,
+				MDIO_REG_GPHY_SHADOW,
+				&temp);
+		temp &= ~(0xf << 4);
+		temp |= (0x6 << 4);
+		bnx2x_cl22_write(bp, phy,
+				 MDIO_REG_GPHY_SHADOW,
+				 MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
+		/* Configure INTR based on link status change. */
+		bnx2x_cl22_write(bp, phy,
+				 MDIO_REG_INTR_MASK,
+				 ~MDIO_REG_INTR_MASK_LINK_STATUS);
+		break;
+	}
+}
+
 static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
 					       struct link_params *params,
 					       struct link_vars *vars)
@@ -10602,24 +10356,8 @@ static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
 	/* Wait for GPHY to reset */
 	msleep(50);
 
-	/* Configure LED4: set to INTR (0x6). */
-	/* Accessing shadow register 0xe. */
-	bnx2x_cl22_write(bp, phy,
-			MDIO_REG_GPHY_SHADOW,
-			MDIO_REG_GPHY_SHADOW_LED_SEL2);
-	bnx2x_cl22_read(bp, phy,
-			MDIO_REG_GPHY_SHADOW,
-			&temp);
-	temp &= ~(0xf << 4);
-	temp |= (0x6 << 4);
-	bnx2x_cl22_write(bp, phy,
-			MDIO_REG_GPHY_SHADOW,
-			MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
-	/* Configure INTR based on link status change. */
-	bnx2x_cl22_write(bp, phy,
-			MDIO_REG_INTR_MASK,
-			~MDIO_REG_INTR_MASK_LINK_STATUS);
 
+	bnx2x_54618se_specific_func(phy, params, PHY_INIT);
 	/* Flip the signal detect polarity (set 0x1c.0x1e[8]). */
 	bnx2x_cl22_write(bp, phy,
 			MDIO_REG_GPHY_SHADOW,
@@ -10724,28 +10462,52 @@ static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
 	}
 
-	/* Check if we should turn on Auto-GrEEEn */
-	bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_PHYID_LSB, &temp);
-	if (temp == MDIO_REG_GPHY_ID_54618SE) {
-		if (params->feature_config_flags &
-		    FEATURE_CONFIG_AUTOGREEEN_ENABLED) {
-			temp = 6;
-			DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n");
+	if ((phy->flags & FLAGS_EEE) && bnx2x_eee_has_cap(params)) {
+		int rc;
+
+		bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS,
+				 MDIO_REG_GPHY_EXP_ACCESS_TOP |
+				 MDIO_REG_GPHY_EXP_TOP_2K_BUF);
+		bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, &temp);
+		temp &= 0xfffe;
+		bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, temp);
+
+		rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_1G_ADV);
+		if (rc) {
+			DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
+			bnx2x_eee_disable(phy, params, vars);
+		} else if ((params->eee_mode & EEE_MODE_ADV_LPI) &&
+			   (phy->req_duplex == DUPLEX_FULL) &&
+			   (bnx2x_eee_calc_timer(params) ||
+			    !(params->eee_mode & EEE_MODE_ENABLE_LPI))) {
+			/* Need to advertise EEE only when requested,
+			 * and either no LPI assertion was requested,
+			 * or it was requested and a valid timer was set.
+			 * Also notice full duplex is required for EEE.
+			 */
+			bnx2x_eee_advertise(phy, params, vars,
+					    SHMEM_EEE_1G_ADV);
 		} else {
-			temp = 0;
-			DP(NETIF_MSG_LINK, "Disabling Auto-GrEEEn\n");
+			DP(NETIF_MSG_LINK, "Don't Advertise 1GBase-T EEE\n");
+			bnx2x_eee_disable(phy, params, vars);
+		}
+	} else {
+		vars->eee_status &= ~SHMEM_EEE_1G_ADV <<
+				    SHMEM_EEE_SUPPORTED_SHIFT;
+
+		if (phy->flags & FLAGS_EEE) {
+			/* Handle legacy auto-grEEEn */
+			if (params->feature_config_flags &
+			    FEATURE_CONFIG_AUTOGREEEN_ENABLED) {
+				temp = 6;
+				DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n");
+			} else {
+				temp = 0;
+				DP(NETIF_MSG_LINK, "Don't Adv. EEE\n");
+			}
+			bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
+					 MDIO_AN_REG_EEE_ADV, temp);
 		}
-		bnx2x_cl22_write(bp, phy,
-				 MDIO_REG_GPHY_CL45_ADDR_REG, MDIO_AN_DEVAD);
-		bnx2x_cl22_write(bp, phy,
-				 MDIO_REG_GPHY_CL45_DATA_REG,
-				 MDIO_REG_GPHY_EEE_ADV);
-		bnx2x_cl22_write(bp, phy,
-				 MDIO_REG_GPHY_CL45_ADDR_REG,
-				 (0x1 << 14) | MDIO_AN_DEVAD);
-		bnx2x_cl22_write(bp, phy,
-				 MDIO_REG_GPHY_CL45_DATA_REG,
-				 temp);
 	}
 
 	bnx2x_cl22_write(bp, phy,
@@ -10892,29 +10654,6 @@ static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy,
 		DP(NETIF_MSG_LINK, "BCM54618SE: link speed is %d\n",
 			   vars->line_speed);
 
-		/* Report whether EEE is resolved. */
-		bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_PHYID_LSB, &val);
-		if (val == MDIO_REG_GPHY_ID_54618SE) {
-			if (vars->link_status &
-			    LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)
-				val = 0;
-			else {
-				bnx2x_cl22_write(bp, phy,
-					MDIO_REG_GPHY_CL45_ADDR_REG,
-					MDIO_AN_DEVAD);
-				bnx2x_cl22_write(bp, phy,
-					MDIO_REG_GPHY_CL45_DATA_REG,
-					MDIO_REG_GPHY_EEE_RESOLVED);
-				bnx2x_cl22_write(bp, phy,
-					MDIO_REG_GPHY_CL45_ADDR_REG,
-					(0x1 << 14) | MDIO_AN_DEVAD);
-				bnx2x_cl22_read(bp, phy,
-					MDIO_REG_GPHY_CL45_DATA_REG,
-					&val);
-			}
-			DP(NETIF_MSG_LINK, "EEE resolution: 0x%x\n", val);
-		}
-
 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
 
 		if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
@@ -10944,6 +10683,10 @@ static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy,
 			if (val & (1<<11))
 				vars->link_status |=
 				  LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
+
+			if ((phy->flags & FLAGS_EEE) &&
+			    bnx2x_eee_has_cap(params))
+				bnx2x_eee_an_resolve(phy, params, vars);
 		}
 	}
 	return link_up;
@@ -11349,7 +11092,7 @@ static struct bnx2x_phy phy_8073 = {
 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)NULL,
-	.phy_specific_func = (phy_specific_func_t)NULL
+	.phy_specific_func = (phy_specific_func_t)bnx2x_8073_specific_func
 };
 static struct bnx2x_phy phy_8705 = {
 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705,
@@ -11542,7 +11285,7 @@ static struct bnx2x_phy phy_84823 = {
 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)NULL
+	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
 };
 
 static struct bnx2x_phy phy_84833 = {
@@ -11551,8 +11294,7 @@ static struct bnx2x_phy phy_84833 = {
 	.def_md_devad	= 0,
 	.flags		= (FLAGS_FAN_FAILURE_DET_REQ |
 			   FLAGS_REARM_LATCH_SIGNAL |
-			   FLAGS_TX_ERROR_CHECK |
-			   FLAGS_EEE_10GBT),
+			   FLAGS_TX_ERROR_CHECK),
 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
 	.mdio_ctrl	= 0,
@@ -11578,7 +11320,7 @@ static struct bnx2x_phy phy_84833 = {
 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
 	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)NULL
+	.phy_specific_func = (phy_specific_func_t)bnx2x_848xx_specific_func
 };
 
 static struct bnx2x_phy phy_54618se = {
@@ -11612,7 +11354,7 @@ static struct bnx2x_phy phy_54618se = {
 	.format_fw_ver	= (format_fw_ver_t)NULL,
 	.hw_reset	= (hw_reset_t)NULL,
 	.set_link_led	= (set_link_led_t)bnx2x_5461x_set_link_led,
-	.phy_specific_func = (phy_specific_func_t)NULL
+	.phy_specific_func = (phy_specific_func_t)bnx2x_54618se_specific_func
 };
 /*****************************************************************/
 /*                                                               */
@@ -11858,6 +11600,8 @@ static int bnx2x_populate_ext_phy(struct bnx2x *bp,
 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54616:
 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE:
 		*phy = phy_54618se;
+		if (phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
+			phy->flags |= FLAGS_EEE;
 		break;
 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
 		*phy = phy_7101;
@@ -12137,7 +11881,7 @@ void bnx2x_init_bmac_loopback(struct link_params *params,
 		bnx2x_xgxs_deassert(params);
 
 		/* set bmac loopback */
-		bnx2x_bmac_enable(params, vars, 1);
+		bnx2x_bmac_enable(params, vars, 1, 1);
 
 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
 }
@@ -12229,7 +11973,7 @@ void bnx2x_init_xgxs_loopback(struct link_params *params,
 		if (USES_WARPCORE(bp))
 			bnx2x_xmac_enable(params, vars, 0);
 		else
-			bnx2x_bmac_enable(params, vars, 0);
+			bnx2x_bmac_enable(params, vars, 0, 1);
 	}
 
 		if (params->loopback_mode == LOOPBACK_XGXS) {
@@ -12254,8 +11998,161 @@ void bnx2x_init_xgxs_loopback(struct link_params *params,
 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
 }
 
+static void bnx2x_set_rx_filter(struct link_params *params, u8 en)
+{
+	struct bnx2x *bp = params->bp;
+	u8 val = en * 0x1F;
+
+	/* Open the gate between the NIG to the BRB */
+	if (!CHIP_IS_E1x(bp))
+		val |= en * 0x20;
+	REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK + params->port*4, val);
+
+	if (!CHIP_IS_E1(bp)) {
+		REG_WR(bp, NIG_REG_LLH0_BRB1_DRV_MASK_MF + params->port*4,
+		       en*0x3);
+	}
+
+	REG_WR(bp, (params->port ? NIG_REG_LLH1_BRB1_NOT_MCP :
+		    NIG_REG_LLH0_BRB1_NOT_MCP), en);
+}
+static int bnx2x_avoid_link_flap(struct link_params *params,
+					    struct link_vars *vars)
+{
+	u32 phy_idx;
+	u32 dont_clear_stat, lfa_sts;
+	struct bnx2x *bp = params->bp;
+
+	/* Sync the link parameters */
+	bnx2x_link_status_update(params, vars);
+
+	/*
+	 * The module verification was already done by previous link owner,
+	 * so this call is meant only to get warning message
+	 */
+
+	for (phy_idx = INT_PHY; phy_idx < params->num_phys; phy_idx++) {
+		struct bnx2x_phy *phy = &params->phy[phy_idx];
+		if (phy->phy_specific_func) {
+			DP(NETIF_MSG_LINK, "Calling PHY specific func\n");
+			phy->phy_specific_func(phy, params, PHY_INIT);
+		}
+		if ((phy->media_type == ETH_PHY_SFPP_10G_FIBER) ||
+		    (phy->media_type == ETH_PHY_SFP_1G_FIBER) ||
+		    (phy->media_type == ETH_PHY_DA_TWINAX))
+			bnx2x_verify_sfp_module(phy, params);
+	}
+	lfa_sts = REG_RD(bp, params->lfa_base +
+			 offsetof(struct shmem_lfa,
+				  lfa_sts));
+
+	dont_clear_stat = lfa_sts & SHMEM_LFA_DONT_CLEAR_STAT;
+
+	/* Re-enable the NIG/MAC */
+	if (CHIP_IS_E3(bp)) {
+		if (!dont_clear_stat) {
+			REG_WR(bp, GRCBASE_MISC +
+			       MISC_REGISTERS_RESET_REG_2_CLEAR,
+			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
+				params->port));
+			REG_WR(bp, GRCBASE_MISC +
+			       MISC_REGISTERS_RESET_REG_2_SET,
+			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
+				params->port));
+		}
+		if (vars->line_speed < SPEED_10000)
+			bnx2x_umac_enable(params, vars, 0);
+		else
+			bnx2x_xmac_enable(params, vars, 0);
+	} else {
+		if (vars->line_speed < SPEED_10000)
+			bnx2x_emac_enable(params, vars, 0);
+		else
+			bnx2x_bmac_enable(params, vars, 0, !dont_clear_stat);
+	}
+
+	/* Increment LFA count */
+	lfa_sts = ((lfa_sts & ~LINK_FLAP_AVOIDANCE_COUNT_MASK) |
+		   (((((lfa_sts & LINK_FLAP_AVOIDANCE_COUNT_MASK) >>
+		       LINK_FLAP_AVOIDANCE_COUNT_OFFSET) + 1) & 0xff)
+		    << LINK_FLAP_AVOIDANCE_COUNT_OFFSET));
+	/* Clear link flap reason */
+	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
+
+	REG_WR(bp, params->lfa_base +
+	       offsetof(struct shmem_lfa, lfa_sts), lfa_sts);
+
+	/* Disable NIG DRAIN */
+	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
+
+	/* Enable interrupts */
+	bnx2x_link_int_enable(params);
+	return 0;
+}
+
+static void bnx2x_cannot_avoid_link_flap(struct link_params *params,
+					 struct link_vars *vars,
+					 int lfa_status)
+{
+	u32 lfa_sts, cfg_idx, tmp_val;
+	struct bnx2x *bp = params->bp;
+
+	bnx2x_link_reset(params, vars, 1);
+
+	if (!params->lfa_base)
+		return;
+	/* Store the new link parameters */
+	REG_WR(bp, params->lfa_base +
+	       offsetof(struct shmem_lfa, req_duplex),
+	       params->req_duplex[0] | (params->req_duplex[1] << 16));
+
+	REG_WR(bp, params->lfa_base +
+	       offsetof(struct shmem_lfa, req_flow_ctrl),
+	       params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16));
+
+	REG_WR(bp, params->lfa_base +
+	       offsetof(struct shmem_lfa, req_line_speed),
+	       params->req_line_speed[0] | (params->req_line_speed[1] << 16));
+
+	for (cfg_idx = 0; cfg_idx < SHMEM_LINK_CONFIG_SIZE; cfg_idx++) {
+		REG_WR(bp, params->lfa_base +
+		       offsetof(struct shmem_lfa,
+				speed_cap_mask[cfg_idx]),
+		       params->speed_cap_mask[cfg_idx]);
+	}
+
+	tmp_val = REG_RD(bp, params->lfa_base +
+			 offsetof(struct shmem_lfa, additional_config));
+	tmp_val &= ~REQ_FC_AUTO_ADV_MASK;
+	tmp_val |= params->req_fc_auto_adv;
+
+	REG_WR(bp, params->lfa_base +
+	       offsetof(struct shmem_lfa, additional_config), tmp_val);
+
+	lfa_sts = REG_RD(bp, params->lfa_base +
+			 offsetof(struct shmem_lfa, lfa_sts));
+
+	/* Clear the "Don't Clear Statistics" bit, and set reason */
+	lfa_sts &= ~SHMEM_LFA_DONT_CLEAR_STAT;
+
+	/* Set link flap reason */
+	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
+	lfa_sts |= ((lfa_status & LFA_LINK_FLAP_REASON_MASK) <<
+		    LFA_LINK_FLAP_REASON_OFFSET);
+
+	/* Increment link flap counter */
+	lfa_sts = ((lfa_sts & ~LINK_FLAP_COUNT_MASK) |
+		   (((((lfa_sts & LINK_FLAP_COUNT_MASK) >>
+		       LINK_FLAP_COUNT_OFFSET) + 1) & 0xff)
+		    << LINK_FLAP_COUNT_OFFSET));
+	REG_WR(bp, params->lfa_base +
+	       offsetof(struct shmem_lfa, lfa_sts), lfa_sts);
+	/* Proceed with regular link initialization */
+}
+
 int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
 {
+	int lfa_status;
 	struct bnx2x *bp = params->bp;
 	DP(NETIF_MSG_LINK, "Phy Initialization started\n");
 	DP(NETIF_MSG_LINK, "(1) req_speed %d, req_flowctrl %d\n",
@@ -12270,6 +12167,19 @@ int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
 	vars->mac_type = MAC_TYPE_NONE;
 	vars->phy_flags = 0;
+	/* Driver opens NIG-BRB filters */
+	bnx2x_set_rx_filter(params, 1);
+	/* Check if link flap can be avoided */
+	lfa_status = bnx2x_check_lfa(params);
+
+	if (lfa_status == 0) {
+		DP(NETIF_MSG_LINK, "Link Flap Avoidance in progress\n");
+		return bnx2x_avoid_link_flap(params, vars);
+	}
+
+	DP(NETIF_MSG_LINK, "Cannot avoid link flap lfa_sta=0x%x\n",
+		       lfa_status);
+	bnx2x_cannot_avoid_link_flap(params, vars, lfa_status);
 
 	/* Disable attentions */
 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
@@ -12352,13 +12262,12 @@ int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
 		REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0);
 	}
 
-	/* Stop BigMac rx */
-	if (!CHIP_IS_E3(bp))
-		bnx2x_bmac_rx_disable(bp, port);
-	else {
-		bnx2x_xmac_disable(params);
-		bnx2x_umac_disable(params);
-	}
+		if (!CHIP_IS_E3(bp)) {
+			bnx2x_set_bmac_rx(bp, params->chip_id, port, 0);
+		} else {
+			bnx2x_set_xmac_rxtx(params, 0);
+			bnx2x_set_umac_rxtx(params, 0);
+		}
 	/* Disable emac */
 	if (!CHIP_IS_E3(bp))
 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
@@ -12416,6 +12325,56 @@ int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
 	vars->phy_flags = 0;
 	return 0;
 }
+int bnx2x_lfa_reset(struct link_params *params,
+			       struct link_vars *vars)
+{
+	struct bnx2x *bp = params->bp;
+	vars->link_up = 0;
+	vars->phy_flags = 0;
+	if (!params->lfa_base)
+		return bnx2x_link_reset(params, vars, 1);
+	/*
+	 * Activate NIG drain so that during this time the device won't send
+	 * anything while it is unable to response.
+	 */
+	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
+
+	/*
+	 * Close gracefully the gate from BMAC to NIG such that no half packets
+	 * are passed.
+	 */
+	if (!CHIP_IS_E3(bp))
+		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 0);
+
+	if (CHIP_IS_E3(bp)) {
+		bnx2x_set_xmac_rxtx(params, 0);
+		bnx2x_set_umac_rxtx(params, 0);
+	}
+	/* Wait 10ms for the pipe to clean up*/
+	usleep_range(10000, 20000);
+
+	/* Clean the NIG-BRB using the network filters in a way that will
+	 * not cut a packet in the middle.
+	 */
+	bnx2x_set_rx_filter(params, 0);
+
+	/*
+	 * Re-open the gate between the BMAC and the NIG, after verifying the
+	 * gate to the BRB is closed, otherwise packets may arrive to the
+	 * firmware before driver had initialized it. The target is to achieve
+	 * minimum management protocol down time.
+	 */
+	if (!CHIP_IS_E3(bp))
+		bnx2x_set_bmac_rx(bp, params->chip_id, params->port, 1);
+
+	if (CHIP_IS_E3(bp)) {
+		bnx2x_set_xmac_rxtx(params, 1);
+		bnx2x_set_umac_rxtx(params, 1);
+	}
+	/* Disable NIG drain */
+	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
+	return 0;
+}
 
 /****************************************************************************/
 /*				Common function				    */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
index 51cac813005..9165b89a4b1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -155,7 +155,7 @@ struct bnx2x_phy {
 #define FLAGS_DUMMY_READ		(1<<9)
 #define FLAGS_MDC_MDIO_WA_B0		(1<<10)
 #define FLAGS_TX_ERROR_CHECK		(1<<12)
-#define FLAGS_EEE_10GBT			(1<<13)
+#define FLAGS_EEE			(1<<13)
 
 	/* preemphasis values for the rx side */
 	u16 rx_preemphasis[4];
@@ -216,6 +216,7 @@ struct bnx2x_phy {
 	phy_specific_func_t phy_specific_func;
 #define DISABLE_TX	1
 #define ENABLE_TX	2
+#define PHY_INIT	3
 };
 
 /* Inputs parameters to the CLC */
@@ -304,6 +305,8 @@ struct link_params {
 	struct bnx2x *bp;
 	u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
 				req_flow_ctrl is set to AUTO */
+	u16 rsrv1;
+	u32 lfa_base;
 };
 
 /* Output parameters */
@@ -356,7 +359,7 @@ int bnx2x_phy_init(struct link_params *params, struct link_vars *vars);
    to 0 */
 int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
 		     u8 reset_ext_phy);
-
+int bnx2x_lfa_reset(struct link_params *params, struct link_vars *vars);
 /* bnx2x_link_update should be called upon link interrupt */
 int bnx2x_link_update(struct link_params *params, struct link_vars *vars);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index dd451c3dd83..f7ed122f407 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -1162,14 +1162,9 @@ static int bnx2x_send_final_clnup(struct bnx2x *bp, u8 clnup_func,
 
 static u8 bnx2x_is_pcie_pending(struct pci_dev *dev)
 {
-	int pos;
 	u16 status;
 
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return false;
-
-	pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &status);
+	pcie_capability_read_word(dev, PCI_EXP_DEVSTA, &status);
 	return status & PCI_EXP_DEVSTA_TRPND;
 }
 
@@ -2171,7 +2166,6 @@ void bnx2x_link_set(struct bnx2x *bp)
 {
 	if (!BP_NOMCP(bp)) {
 		bnx2x_acquire_phy_lock(bp);
-		bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
 		bnx2x_phy_init(&bp->link_params, &bp->link_vars);
 		bnx2x_release_phy_lock(bp);
 
@@ -2184,12 +2178,19 @@ static void bnx2x__link_reset(struct bnx2x *bp)
 {
 	if (!BP_NOMCP(bp)) {
 		bnx2x_acquire_phy_lock(bp);
-		bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
+		bnx2x_lfa_reset(&bp->link_params, &bp->link_vars);
 		bnx2x_release_phy_lock(bp);
 	} else
 		BNX2X_ERR("Bootcode is missing - can not reset link\n");
 }
 
+void bnx2x_force_link_reset(struct bnx2x *bp)
+{
+	bnx2x_acquire_phy_lock(bp);
+	bnx2x_link_reset(&bp->link_params, &bp->link_vars, 1);
+	bnx2x_release_phy_lock(bp);
+}
+
 u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
 {
 	u8 rc = 0;
@@ -4041,20 +4042,6 @@ static bool bnx2x_get_load_status(struct bnx2x *bp, int engine)
 	return val != 0;
 }
 
-/*
- * Reset the load status for the current engine.
- */
-static void bnx2x_clear_load_status(struct bnx2x *bp)
-{
-	u32 val;
-	u32 mask = (BP_PATH(bp) ? BNX2X_PATH1_LOAD_CNT_MASK :
-		    BNX2X_PATH0_LOAD_CNT_MASK);
-	bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
-	val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
-	REG_WR(bp, BNX2X_RECOVERY_GLOB_REG, val & (~mask));
-	bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_RECOVERY_REG);
-}
-
 static void _print_next_block(int idx, const char *blk)
 {
 	pr_cont("%s%s", idx ? ", " : "", blk);
@@ -6149,8 +6136,7 @@ static void bnx2x_init_pxp(struct bnx2x *bp)
 	u16 devctl;
 	int r_order, w_order;
 
-	pci_read_config_word(bp->pdev,
-			     pci_pcie_cap(bp->pdev) + PCI_EXP_DEVCTL, &devctl);
+	pcie_capability_read_word(bp->pdev, PCI_EXP_DEVCTL, &devctl);
 	DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl);
 	w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
 	if (bp->mrrs == -1)
@@ -6771,7 +6757,6 @@ static int bnx2x_init_hw_port(struct bnx2x *bp)
 	u32 low, high;
 	u32 val;
 
-	bnx2x__link_reset(bp);
 
 	DP(NETIF_MSG_HW, "starting port init  port %d\n", port);
 
@@ -7575,8 +7560,14 @@ int bnx2x_set_mac_one(struct bnx2x *bp, u8 *mac,
 	}
 
 	rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
-	if (rc < 0)
+
+	if (rc == -EEXIST) {
+		DP(BNX2X_MSG_SP, "Failed to schedule ADD operations: %d\n", rc);
+		/* do not treat adding same MAC as error */
+		rc = 0;
+	} else if (rc < 0)
 		BNX2X_ERR("%s MAC failed\n", (set ? "Set" : "Del"));
+
 	return rc;
 }
 
@@ -8258,12 +8249,15 @@ u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode)
  * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
  *
  * @bp:		driver handle
+ * @keep_link:		true iff link should be kept up
  */
-void bnx2x_send_unload_done(struct bnx2x *bp)
+void bnx2x_send_unload_done(struct bnx2x *bp, bool keep_link)
 {
+	u32 reset_param = keep_link ? DRV_MSG_CODE_UNLOAD_SKIP_LINK_RESET : 0;
+
 	/* Report UNLOAD_DONE to MCP */
 	if (!BP_NOMCP(bp))
-		bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
+		bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, reset_param);
 }
 
 static int bnx2x_func_wait_started(struct bnx2x *bp)
@@ -8332,7 +8326,7 @@ static int bnx2x_func_wait_started(struct bnx2x *bp)
 	return 0;
 }
 
-void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode)
+void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link)
 {
 	int port = BP_PORT(bp);
 	int i, rc = 0;
@@ -8441,6 +8435,8 @@ unload_error:
 
 	/* Disable HW interrupts, NAPI */
 	bnx2x_netif_stop(bp, 1);
+	/* Delete all NAPI objects */
+	bnx2x_del_all_napi(bp);
 
 	/* Release IRQs */
 	bnx2x_free_irq(bp);
@@ -8452,7 +8448,7 @@ unload_error:
 
 
 	/* Report UNLOAD_DONE to MCP */
-	bnx2x_send_unload_done(bp);
+	bnx2x_send_unload_done(bp, keep_link);
 }
 
 void bnx2x_disable_close_the_gate(struct bnx2x *bp)
@@ -8864,7 +8860,8 @@ int bnx2x_leader_reset(struct bnx2x *bp)
 	 * driver is owner of the HW
 	 */
 	if (!global && !BP_NOMCP(bp)) {
-		load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, 0);
+		load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ,
+					     DRV_MSG_CODE_LOAD_REQ_WITH_LFA);
 		if (!load_code) {
 			BNX2X_ERR("MCP response failure, aborting\n");
 			rc = -EAGAIN;
@@ -8970,7 +8967,7 @@ static void bnx2x_parity_recover(struct bnx2x *bp)
 
 			/* Stop the driver */
 			/* If interface has been removed - break */
-			if (bnx2x_nic_unload(bp, UNLOAD_RECOVERY))
+			if (bnx2x_nic_unload(bp, UNLOAD_RECOVERY, false))
 				return;
 
 			bp->recovery_state = BNX2X_RECOVERY_WAIT;
@@ -9136,7 +9133,7 @@ static void bnx2x_sp_rtnl_task(struct work_struct *work)
 		bp->sp_rtnl_state = 0;
 		smp_mb();
 
-		bnx2x_nic_unload(bp, UNLOAD_NORMAL);
+		bnx2x_nic_unload(bp, UNLOAD_NORMAL, true);
 		bnx2x_nic_load(bp, LOAD_NORMAL);
 
 		goto sp_rtnl_exit;
@@ -9322,7 +9319,8 @@ static void __devinit bnx2x_prev_unload_undi_inc(struct bnx2x *bp, u8 port,
 
 static int __devinit bnx2x_prev_mcp_done(struct bnx2x *bp)
 {
-	u32 rc = bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0);
+	u32 rc = bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE,
+				  DRV_MSG_CODE_UNLOAD_SKIP_LINK_RESET);
 	if (!rc) {
 		BNX2X_ERR("MCP response failure, aborting\n");
 		return -EBUSY;
@@ -9384,43 +9382,31 @@ static int __devinit bnx2x_prev_mark_path(struct bnx2x *bp)
 	return rc;
 }
 
-static bool __devinit bnx2x_can_flr(struct bnx2x *bp)
-{
-	int pos;
-	u32 cap;
-	struct pci_dev *dev = bp->pdev;
-
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return false;
-
-	pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP, &cap);
-	if (!(cap & PCI_EXP_DEVCAP_FLR))
-		return false;
-
-	return true;
-}
-
 static int __devinit bnx2x_do_flr(struct bnx2x *bp)
 {
-	int i, pos;
+	int i;
 	u16 status;
 	struct pci_dev *dev = bp->pdev;
 
-	/* probe the capability first */
-	if (bnx2x_can_flr(bp))
-		return -ENOTTY;
 
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return -ENOTTY;
+	if (CHIP_IS_E1x(bp)) {
+		BNX2X_DEV_INFO("FLR not supported in E1/E1H\n");
+		return -EINVAL;
+	}
+
+	/* only bootcode REQ_BC_VER_4_INITIATE_FLR and onwards support flr */
+	if (bp->common.bc_ver < REQ_BC_VER_4_INITIATE_FLR) {
+		BNX2X_ERR("FLR not supported by BC_VER: 0x%x\n",
+			  bp->common.bc_ver);
+		return -EINVAL;
+	}
 
 	/* Wait for Transaction Pending bit clean */
 	for (i = 0; i < 4; i++) {
 		if (i)
 			msleep((1 << (i - 1)) * 100);
 
-		pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &status);
+		pcie_capability_read_word(dev, PCI_EXP_DEVSTA, &status);
 		if (!(status & PCI_EXP_DEVSTA_TRPND))
 			goto clear;
 	}
@@ -9429,12 +9415,8 @@ static int __devinit bnx2x_do_flr(struct bnx2x *bp)
 		"transaction is not cleared; proceeding with reset anyway\n");
 
 clear:
-	if (bp->common.bc_ver < REQ_BC_VER_4_INITIATE_FLR) {
-		BNX2X_ERR("FLR not supported by BC_VER: 0x%x\n",
-			  bp->common.bc_ver);
-		return -EINVAL;
-	}
 
+	BNX2X_DEV_INFO("Initiating FLR\n");
 	bnx2x_fw_command(bp, DRV_MSG_CODE_INITIATE_FLR, 0);
 
 	return 0;
@@ -9454,8 +9436,21 @@ static int __devinit bnx2x_prev_unload_uncommon(struct bnx2x *bp)
 	 * the one required, then FLR will be sufficient to clean any residue
 	 * left by previous driver
 	 */
-	if (bnx2x_test_firmware_version(bp, false) && bnx2x_can_flr(bp))
-		return bnx2x_do_flr(bp);
+	rc = bnx2x_test_firmware_version(bp, false);
+
+	if (!rc) {
+		/* fw version is good */
+		BNX2X_DEV_INFO("FW version matches our own. Attempting FLR\n");
+		rc = bnx2x_do_flr(bp);
+	}
+
+	if (!rc) {
+		/* FLR was performed */
+		BNX2X_DEV_INFO("FLR successful\n");
+		return 0;
+	}
+
+	BNX2X_DEV_INFO("Could not FLR\n");
 
 	/* Close the MCP request, return failure*/
 	rc = bnx2x_prev_mcp_done(bp);
@@ -9836,12 +9831,13 @@ static void __devinit bnx2x_get_igu_cam_info(struct bnx2x *bp)
 	}
 
 #ifdef CONFIG_PCI_MSI
-	/*
-	 * It's expected that number of CAM entries for this functions is equal
-	 * to the number evaluated based on the MSI-X table size. We want a
-	 * harsh warning if these values are different!
+	/* Due to new PF resource allocation by MFW T7.4 and above, it's
+	 * optional that number of CAM entries will not be equal to the value
+	 * advertised in PCI.
+	 * Driver should use the minimal value of both as the actual status
+	 * block count
 	 */
-	WARN_ON(bp->igu_sb_cnt != igu_sb_cnt);
+	bp->igu_sb_cnt = min_t(int, bp->igu_sb_cnt, igu_sb_cnt);
 #endif
 
 	if (igu_sb_cnt == 0)
@@ -10305,13 +10301,11 @@ static void __devinit bnx2x_get_fcoe_info(struct bnx2x *bp)
 				dev_info.port_hw_config[port].
 				 fcoe_wwn_node_name_lower);
 	} else if (!IS_MF_SD(bp)) {
-		u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
-
 		/*
 		 * Read the WWN info only if the FCoE feature is enabled for
 		 * this function.
 		 */
-		if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD)
+		if (BNX2X_MF_EXT_PROTOCOL_FCOE(bp) && !CHIP_IS_E1x(bp))
 			bnx2x_get_ext_wwn_info(bp, func);
 
 	} else if (IS_MF_FCOE_SD(bp))
@@ -11016,7 +11010,7 @@ static int bnx2x_close(struct net_device *dev)
 	struct bnx2x *bp = netdev_priv(dev);
 
 	/* Unload the driver, release IRQs */
-	bnx2x_nic_unload(bp, UNLOAD_CLOSE);
+	bnx2x_nic_unload(bp, UNLOAD_CLOSE, false);
 
 	/* Power off */
 	bnx2x_set_power_state(bp, PCI_D3hot);
@@ -11084,7 +11078,14 @@ static int bnx2x_set_uc_list(struct bnx2x *bp)
 	netdev_for_each_uc_addr(ha, dev) {
 		rc = bnx2x_set_mac_one(bp, bnx2x_uc_addr(ha), mac_obj, true,
 				       BNX2X_UC_LIST_MAC, &ramrod_flags);
-		if (rc < 0) {
+		if (rc == -EEXIST) {
+			DP(BNX2X_MSG_SP,
+			   "Failed to schedule ADD operations: %d\n", rc);
+			/* do not treat adding same MAC as error */
+			rc = 0;
+
+		} else if (rc < 0) {
+
 			BNX2X_ERR("Failed to schedule ADD operations: %d\n",
 				  rc);
 			return rc;
@@ -11242,10 +11243,12 @@ static int bnx2x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 static void poll_bnx2x(struct net_device *dev)
 {
 	struct bnx2x *bp = netdev_priv(dev);
+	int i;
 
-	disable_irq(bp->pdev->irq);
-	bnx2x_interrupt(bp->pdev->irq, dev);
-	enable_irq(bp->pdev->irq);
+	for_each_eth_queue(bp, i) {
+		struct bnx2x_fastpath *fp = &bp->fp[i];
+		napi_schedule(&bnx2x_fp(bp, fp->index, napi));
+	}
 }
 #endif
 
@@ -11427,9 +11430,6 @@ static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
 	if (!chip_is_e1x)
 		REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
 
-	/* Reset the load counter */
-	bnx2x_clear_load_status(bp);
-
 	dev->watchdog_timeo = TX_TIMEOUT;
 
 	dev->netdev_ops = &bnx2x_netdev_ops;
@@ -11915,9 +11915,6 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev,
 	 */
 	bnx2x_set_int_mode(bp);
 
-	/* Add all NAPI objects */
-	bnx2x_add_all_napi(bp);
-
 	rc = register_netdev(dev);
 	if (rc) {
 		dev_err(&pdev->dev, "Cannot register net device\n");
@@ -11992,9 +11989,6 @@ static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
 
 	unregister_netdev(dev);
 
-	/* Delete all NAPI objects */
-	bnx2x_del_all_napi(bp);
-
 	/* Power on: we can't let PCI layer write to us while we are in D3 */
 	bnx2x_set_power_state(bp, PCI_D0);
 
@@ -12041,6 +12035,8 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 	bnx2x_tx_disable(bp);
 
 	bnx2x_netif_stop(bp, 0);
+	/* Delete all NAPI objects */
+	bnx2x_del_all_napi(bp);
 
 	del_timer_sync(&bp->timer);
 
@@ -12171,7 +12167,7 @@ static void bnx2x_io_resume(struct pci_dev *pdev)
 	rtnl_unlock();
 }
 
-static struct pci_error_handlers bnx2x_err_handler = {
+static const struct pci_error_handlers bnx2x_err_handler = {
 	.error_detected = bnx2x_io_error_detected,
 	.slot_reset     = bnx2x_io_slot_reset,
 	.resume         = bnx2x_io_resume,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index 28a0bcfe61f..1b1999d34c7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -4949,6 +4949,10 @@
 #define UMAC_COMMAND_CONFIG_REG_SW_RESET			 (0x1<<13)
 #define UMAC_COMMAND_CONFIG_REG_TX_ENA				 (0x1<<0)
 #define UMAC_REG_COMMAND_CONFIG					 0x8
+/* [RW 16] This is the duration for which MAC must wait to go back to ACTIVE
+ * state from LPI state when it receives packet for transmission. The
+ * decrement unit is 1 micro-second. */
+#define UMAC_REG_EEE_WAKE_TIMER					 0x6c
 /* [RW 32] Register Bit 0 refers to Bit 16 of the MAC address; Bit 1 refers
  * to bit 17 of the MAC address etc. */
 #define UMAC_REG_MAC_ADDR0					 0xc
@@ -4958,6 +4962,8 @@
 /* [RW 14] Defines a 14-Bit maximum frame length used by the MAC receive
  * logic to check frames. */
 #define UMAC_REG_MAXFR						 0x14
+#define UMAC_REG_UMAC_EEE_CTRL					 0x64
+#define UMAC_UMAC_EEE_CTRL_REG_EEE_EN				 (0x1<<3)
 /* [RW 8] The event id for aggregated interrupt 0 */
 #define USDM_REG_AGG_INT_EVENT_0				 0xc4038
 #define USDM_REG_AGG_INT_EVENT_1				 0xc403c
@@ -6992,6 +6998,7 @@ Theotherbitsarereservedandshouldbezero*/
 /* BCM84833 only */
 #define MDIO_84833_TOP_CFG_FW_REV			0x400f
 #define MDIO_84833_TOP_CFG_FW_EEE		0x10b1
+#define MDIO_84833_TOP_CFG_FW_NO_EEE		0x1f81
 #define MDIO_84833_TOP_CFG_XGPHY_STRAP1			0x401a
 #define MDIO_84833_SUPER_ISOLATE		0x8000
 /* These are mailbox register set used by 84833. */
@@ -7160,10 +7167,11 @@ Theotherbitsarereservedandshouldbezero*/
 #define MDIO_REG_GPHY_ID_54618SE		0x5cd5
 #define MDIO_REG_GPHY_CL45_ADDR_REG			0xd
 #define MDIO_REG_GPHY_CL45_DATA_REG			0xe
-#define MDIO_REG_GPHY_EEE_ADV			0x3c
-#define MDIO_REG_GPHY_EEE_1G		(0x1 << 2)
-#define MDIO_REG_GPHY_EEE_100		(0x1 << 1)
 #define MDIO_REG_GPHY_EEE_RESOLVED		0x803e
+#define MDIO_REG_GPHY_EXP_ACCESS_GATE			0x15
+#define MDIO_REG_GPHY_EXP_ACCESS			0x17
+#define MDIO_REG_GPHY_EXP_ACCESS_TOP		0xd00
+#define MDIO_REG_GPHY_EXP_TOP_2K_BUF		0x40
 #define MDIO_REG_GPHY_AUX_STATUS			0x19
 #define MDIO_REG_INTR_STATUS				0x1a
 #define MDIO_REG_INTR_MASK				0x1b
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 734fd87cd99..71971a161bd 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -229,8 +229,7 @@ static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 			 */
 			list_add_tail(&spacer.link, &o->pending_comp);
 			mb();
-			list_del(&elem->link);
-			list_add_tail(&elem->link, &o->pending_comp);
+			list_move_tail(&elem->link, &o->pending_comp);
 			list_del(&spacer.link);
 		} else
 			break;
@@ -2485,6 +2484,7 @@ static int bnx2x_mcast_enqueue_cmd(struct bnx2x *bp,
 		break;
 
 	default:
+		kfree(new_cmd);
 		BNX2X_ERR("Unknown command: %d\n", cmd);
 		return -EINVAL;
 	}
@@ -5619,7 +5619,7 @@ static inline int bnx2x_func_send_start(struct bnx2x *bp,
 	memset(rdata, 0, sizeof(*rdata));
 
 	/* Fill the ramrod data with provided parameters */
-	rdata->function_mode = cpu_to_le16(start_params->mf_mode);
+	rdata->function_mode = (u8)start_params->mf_mode;
 	rdata->sd_vlan_tag   = cpu_to_le16(start_params->sd_vlan_tag);
 	rdata->path_id       = BP_PATH(bp);
 	rdata->network_cos_mode = start_params->network_cos_mode;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index f83e033da6d..acf2fe4ca60 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -1321,7 +1321,7 @@ void bnx2x_init_mcast_obj(struct bnx2x *bp,
  * the current command will be enqueued to the tail of the
  * pending commands list.
  *
- * Return: 0 is operation was sucessfull and there are no pending completions,
+ * Return: 0 is operation was successfull and there are no pending completions,
  *         negative if there were errors, positive if there are pending
  *         completions.
  */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 332db64dd5b..348ed02d3c6 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -39,14 +39,39 @@ static inline long bnx2x_hilo(u32 *hiref)
 #endif
 }
 
-static u16 bnx2x_get_port_stats_dma_len(struct bnx2x *bp)
+static inline u16 bnx2x_get_port_stats_dma_len(struct bnx2x *bp)
 {
-	u16 res = sizeof(struct host_port_stats) >> 2;
+	u16 res = 0;
 
-	/* if PFC stats are not supported by the MFW, don't DMA them */
-	if (!(bp->flags &  BC_SUPPORTS_PFC_STATS))
-		res -= (sizeof(u32)*4) >> 2;
+	/* 'newest' convention - shmem2 cotains the size of the port stats */
+	if (SHMEM2_HAS(bp, sizeof_port_stats)) {
+		u32 size = SHMEM2_RD(bp, sizeof_port_stats);
+		if (size)
+			res = size;
 
+		/* prevent newer BC from causing buffer overflow */
+		if (res > sizeof(struct host_port_stats))
+			res = sizeof(struct host_port_stats);
+	}
+
+	/* Older convention - all BCs support the port stats' fields up until
+	 * the 'not_used' field
+	 */
+	if (!res) {
+		res = offsetof(struct host_port_stats, not_used) + 4;
+
+		/* if PFC stats are supported by the MFW, DMA them as well */
+		if (bp->flags & BC_SUPPORTS_PFC_STATS) {
+			res += offsetof(struct host_port_stats,
+					pfc_frames_rx_lo) -
+			       offsetof(struct host_port_stats,
+					pfc_frames_tx_hi) + 4 ;
+		}
+	}
+
+	res >>= 2;
+
+	WARN_ON(res > 2 * DMAE_LEN32_RD_MAX);
 	return res;
 }
 
@@ -101,6 +126,11 @@ static void bnx2x_hw_stats_post(struct bnx2x *bp)
 	if (CHIP_REV_IS_SLOW(bp))
 		return;
 
+	/* Update MCP's statistics if possible */
+	if (bp->func_stx)
+		memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats,
+		       sizeof(bp->func_stats));
+
 	/* loader */
 	if (bp->executer_idx) {
 		int loader_idx = PMF_DMAE_C(bp);
@@ -128,8 +158,6 @@ static void bnx2x_hw_stats_post(struct bnx2x *bp)
 
 	} else if (bp->func_stx) {
 		*stats_comp = 0;
-		memcpy(bnx2x_sp(bp, func_stats), &bp->func_stats,
-		       sizeof(bp->func_stats));
 		bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp));
 	}
 }
@@ -1151,9 +1179,11 @@ static void bnx2x_stats_update(struct bnx2x *bp)
 	if (bp->port.pmf)
 		bnx2x_hw_stats_update(bp);
 
-	if (bnx2x_storm_stats_update(bp) && (bp->stats_pending++ == 3)) {
-		BNX2X_ERR("storm stats were not updated for 3 times\n");
-		bnx2x_panic();
+	if (bnx2x_storm_stats_update(bp)) {
+		if (bp->stats_pending++ == 3) {
+			BNX2X_ERR("storm stats were not updated for 3 times\n");
+			bnx2x_panic();
+		}
 		return;
 	}
 
diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index 3b4fc61f24c..cc8434fd606 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -823,10 +823,8 @@ static void cnic_free_context(struct cnic_dev *dev)
 	}
 }
 
-static void __cnic_free_uio(struct cnic_uio_dev *udev)
+static void __cnic_free_uio_rings(struct cnic_uio_dev *udev)
 {
-	uio_unregister_device(&udev->cnic_uinfo);
-
 	if (udev->l2_buf) {
 		dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 				  udev->l2_buf, udev->l2_buf_map);
@@ -839,6 +837,14 @@ static void __cnic_free_uio(struct cnic_uio_dev *udev)
 		udev->l2_ring = NULL;
 	}
 
+}
+
+static void __cnic_free_uio(struct cnic_uio_dev *udev)
+{
+	uio_unregister_device(&udev->cnic_uinfo);
+
+	__cnic_free_uio_rings(udev);
+
 	pci_dev_put(udev->pdev);
 	kfree(udev);
 }
@@ -862,6 +868,8 @@ static void cnic_free_resc(struct cnic_dev *dev)
 	if (udev) {
 		udev->dev = NULL;
 		cp->udev = NULL;
+		if (udev->uio_dev == -1)
+			__cnic_free_uio_rings(udev);
 	}
 
 	cnic_free_context(dev);
@@ -996,6 +1004,34 @@ static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
 	return 0;
 }
 
+static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages)
+{
+	struct cnic_local *cp = udev->dev->cnic_priv;
+
+	if (udev->l2_ring)
+		return 0;
+
+	udev->l2_ring_size = pages * BCM_PAGE_SIZE;
+	udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
+					   &udev->l2_ring_map,
+					   GFP_KERNEL | __GFP_COMP);
+	if (!udev->l2_ring)
+		return -ENOMEM;
+
+	udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
+	udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
+	udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
+					  &udev->l2_buf_map,
+					  GFP_KERNEL | __GFP_COMP);
+	if (!udev->l2_buf) {
+		__cnic_free_uio_rings(udev);
+		return -ENOMEM;
+	}
+
+	return 0;
+
+}
+
 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 {
 	struct cnic_local *cp = dev->cnic_priv;
@@ -1005,6 +1041,11 @@ static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 	list_for_each_entry(udev, &cnic_udev_list, list) {
 		if (udev->pdev == dev->pcidev) {
 			udev->dev = dev;
+			if (__cnic_alloc_uio_rings(udev, pages)) {
+				udev->dev = NULL;
+				read_unlock(&cnic_dev_lock);
+				return -ENOMEM;
+			}
 			cp->udev = udev;
 			read_unlock(&cnic_dev_lock);
 			return 0;
@@ -1020,20 +1061,9 @@ static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 
 	udev->dev = dev;
 	udev->pdev = dev->pcidev;
-	udev->l2_ring_size = pages * BCM_PAGE_SIZE;
-	udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
-					   &udev->l2_ring_map,
-					   GFP_KERNEL | __GFP_COMP);
-	if (!udev->l2_ring)
-		goto err_udev;
 
-	udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
-	udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
-	udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
-					  &udev->l2_buf_map,
-					  GFP_KERNEL | __GFP_COMP);
-	if (!udev->l2_buf)
-		goto err_dma;
+	if (__cnic_alloc_uio_rings(udev, pages))
+		goto err_udev;
 
 	write_lock(&cnic_dev_lock);
 	list_add(&udev->list, &cnic_udev_list);
@@ -1044,9 +1074,7 @@ static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 	cp->udev = udev;
 
 	return 0;
- err_dma:
-	dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
-			  udev->l2_ring, udev->l2_ring_map);
+
  err_udev:
 	kfree(udev);
 	return -ENOMEM;
@@ -1260,7 +1288,7 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
 	if (ret)
 		goto error;
 
-	if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
+	if (CNIC_SUPPORTS_FCOE(cp)) {
 		ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
 		if (ret)
 			goto error;
@@ -1275,6 +1303,9 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
 	if (ret)
 		goto error;
 
+	if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
+		return 0;
+
 	cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
 
 	cp->l2_rx_ring_size = 15;
@@ -3050,6 +3081,22 @@ static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
 			IGU_INT_DISABLE, 0);
 }
 
+static void cnic_arm_bnx2x_msix(struct cnic_dev *dev, u32 idx)
+{
+	struct cnic_local *cp = dev->cnic_priv;
+
+	cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, idx,
+			   IGU_INT_ENABLE, 1);
+}
+
+static void cnic_arm_bnx2x_e2_msix(struct cnic_dev *dev, u32 idx)
+{
+	struct cnic_local *cp = dev->cnic_priv;
+
+	cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, idx,
+			IGU_INT_ENABLE, 1);
+}
+
 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
 {
 	u32 last_status = *info->status_idx_ptr;
@@ -3086,9 +3133,8 @@ static void cnic_service_bnx2x_bh(unsigned long data)
 		CNIC_WR16(dev, cp->kcq1.io_addr,
 			  cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
 
-		if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
-			cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
-					   status_idx, IGU_INT_ENABLE, 1);
+		if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE) {
+			cp->arm_int(dev, status_idx);
 			break;
 		}
 
@@ -4845,6 +4891,9 @@ static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
 	buf_map = udev->l2_buf_map;
 	for (i = 0; i < MAX_TX_DESC_CNT; i += 3, txbd += 3) {
 		struct eth_tx_start_bd *start_bd = &txbd->start_bd;
+		struct eth_tx_parse_bd_e1x *pbd_e1x =
+			&((txbd + 1)->parse_bd_e1x);
+		struct eth_tx_parse_bd_e2 *pbd_e2 = &((txbd + 1)->parse_bd_e2);
 		struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
 
 		start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
@@ -4854,10 +4903,15 @@ static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
 		start_bd->nbytes = cpu_to_le16(0x10);
 		start_bd->nbd = cpu_to_le16(3);
 		start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
-		start_bd->general_data = (UNICAST_ADDRESS <<
-			ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT);
+		start_bd->general_data &= ~ETH_TX_START_BD_PARSE_NBDS;
 		start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
 
+		if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
+			pbd_e2->parsing_data = (UNICAST_ADDRESS <<
+				 ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE_SHIFT);
+		else
+			 pbd_e1x->global_data = (UNICAST_ADDRESS <<
+				ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE_SHIFT);
 	}
 
 	val = (u64) ring_map >> 32;
@@ -5308,7 +5362,7 @@ static void cnic_stop_hw(struct cnic_dev *dev)
 		/* Need to wait for the ring shutdown event to complete
 		 * before clearing the CNIC_UP flag.
 		 */
-		while (cp->udev->uio_dev != -1 && i < 15) {
+		while (cp->udev && cp->udev->uio_dev != -1 && i < 15) {
 			msleep(100);
 			i++;
 		}
@@ -5473,8 +5527,7 @@ static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
 
 	if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
 		cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
-	if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
-	    !(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
+	if (CNIC_SUPPORTS_FCOE(cp))
 		cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
 
 	if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS)
@@ -5492,10 +5545,13 @@ static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
 	cp->stop_cm = cnic_cm_stop_bnx2x_hw;
 	cp->enable_int = cnic_enable_bnx2x_int;
 	cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
-	if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
+	if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
 		cp->ack_int = cnic_ack_bnx2x_e2_msix;
-	else
+		cp->arm_int = cnic_arm_bnx2x_e2_msix;
+	} else {
 		cp->ack_int = cnic_ack_bnx2x_msix;
+		cp->arm_int = cnic_arm_bnx2x_msix;
+	}
 	cp->close_conn = cnic_close_bnx2x_conn;
 	return cdev;
 }
diff --git a/drivers/net/ethernet/broadcom/cnic.h b/drivers/net/ethernet/broadcom/cnic.h
index 30328097f51..148604c3fa0 100644
--- a/drivers/net/ethernet/broadcom/cnic.h
+++ b/drivers/net/ethernet/broadcom/cnic.h
@@ -334,6 +334,7 @@ struct cnic_local {
 	void			(*enable_int)(struct cnic_dev *);
 	void			(*disable_int_sync)(struct cnic_dev *);
 	void			(*ack_int)(struct cnic_dev *);
+	void			(*arm_int)(struct cnic_dev *, u32 index);
 	void			(*close_conn)(struct cnic_sock *, u32 opcode);
 };
 
@@ -474,6 +475,10 @@ struct bnx2x_bd_chain_next {
 	  MAX_STAT_COUNTER_ID_E1))
 #endif
 
+#define CNIC_SUPPORTS_FCOE(cp)					\
+	(BNX2X_CHIP_IS_E2_PLUS((cp)->chip_id) &&		\
+	 !((cp)->ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
+
 #define CNIC_RAMROD_TMO			(HZ / 4)
 
 #endif
diff --git a/drivers/net/ethernet/broadcom/cnic_defs.h b/drivers/net/ethernet/broadcom/cnic_defs.h
index 382c98b0cc0..ede3db35d75 100644
--- a/drivers/net/ethernet/broadcom/cnic_defs.h
+++ b/drivers/net/ethernet/broadcom/cnic_defs.h
@@ -896,7 +896,7 @@ struct tstorm_tcp_tcp_ag_context_section {
 	u32 snd_nxt;
 	u32 rtt_seq;
 	u32 rtt_time;
-	u32 __reserved66;
+	u32 wnd_right_edge_local;
 	u32 wnd_right_edge;
 	u32 tcp_agg_vars1;
 #define TSTORM_TCP_TCP_AG_CONTEXT_SECTION_FIN_SENT_FLAG (0x1<<0)
diff --git a/drivers/net/ethernet/broadcom/cnic_if.h b/drivers/net/ethernet/broadcom/cnic_if.h
index 5cb88881bba..865095aad1f 100644
--- a/drivers/net/ethernet/broadcom/cnic_if.h
+++ b/drivers/net/ethernet/broadcom/cnic_if.h
@@ -14,8 +14,8 @@
 
 #include "bnx2x/bnx2x_mfw_req.h"
 
-#define CNIC_MODULE_VERSION	"2.5.12"
-#define CNIC_MODULE_RELDATE	"June 29, 2012"
+#define CNIC_MODULE_VERSION	"2.5.14"
+#define CNIC_MODULE_RELDATE	"Sep 30, 2012"
 
 #define CNIC_ULP_RDMA		0
 #define CNIC_ULP_ISCSI		1
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index bf906c51d82..46280ba4c5d 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -44,10 +44,8 @@
 #include <linux/prefetch.h>
 #include <linux/dma-mapping.h>
 #include <linux/firmware.h>
-#if IS_ENABLED(CONFIG_HWMON)
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
-#endif
 
 #include <net/checksum.h>
 #include <net/ip.h>
@@ -92,10 +90,10 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
 
 #define DRV_MODULE_NAME		"tg3"
 #define TG3_MAJ_NUM			3
-#define TG3_MIN_NUM			124
+#define TG3_MIN_NUM			125
 #define DRV_MODULE_VERSION	\
 	__stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
-#define DRV_MODULE_RELDATE	"March 21, 2012"
+#define DRV_MODULE_RELDATE	"September 26, 2012"
 
 #define RESET_KIND_SHUTDOWN	0
 #define RESET_KIND_INIT		1
@@ -3653,17 +3651,9 @@ static int tg3_power_down_prepare(struct tg3 *tp)
 	tg3_enable_register_access(tp);
 
 	/* Restore the CLKREQ setting. */
-	if (tg3_flag(tp, CLKREQ_BUG)) {
-		u16 lnkctl;
-
-		pci_read_config_word(tp->pdev,
-				     pci_pcie_cap(tp->pdev) + PCI_EXP_LNKCTL,
-				     &lnkctl);
-		lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
-		pci_write_config_word(tp->pdev,
-				      pci_pcie_cap(tp->pdev) + PCI_EXP_LNKCTL,
-				      lnkctl);
-	}
+	if (tg3_flag(tp, CLKREQ_BUG))
+		pcie_capability_set_word(tp->pdev, PCI_EXP_LNKCTL,
+					 PCI_EXP_LNKCTL_CLKREQ_EN);
 
 	misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
 	tw32(TG3PCI_MISC_HOST_CTRL,
@@ -4434,20 +4424,13 @@ relink:
 
 	/* Prevent send BD corruption. */
 	if (tg3_flag(tp, CLKREQ_BUG)) {
-		u16 oldlnkctl, newlnkctl;
-
-		pci_read_config_word(tp->pdev,
-				     pci_pcie_cap(tp->pdev) + PCI_EXP_LNKCTL,
-				     &oldlnkctl);
 		if (tp->link_config.active_speed == SPEED_100 ||
 		    tp->link_config.active_speed == SPEED_10)
-			newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
+			pcie_capability_clear_word(tp->pdev, PCI_EXP_LNKCTL,
+						   PCI_EXP_LNKCTL_CLKREQ_EN);
 		else
-			newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
-		if (newlnkctl != oldlnkctl)
-			pci_write_config_word(tp->pdev,
-					      pci_pcie_cap(tp->pdev) +
-					      PCI_EXP_LNKCTL, newlnkctl);
+			pcie_capability_set_word(tp->pdev, PCI_EXP_LNKCTL,
+						 PCI_EXP_LNKCTL_CLKREQ_EN);
 	}
 
 	if (current_link_up != netif_carrier_ok(tp->dev)) {
@@ -6278,7 +6261,7 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
 		u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
 
 		tp->rx_refill = false;
-		for (i = 1; i < tp->irq_cnt; i++)
+		for (i = 1; i <= tp->rxq_cnt; i++)
 			err |= tg3_rx_prodring_xfer(tp, dpr,
 						    &tp->napi[i].prodring);
 
@@ -7607,15 +7590,11 @@ static int tg3_init_rings(struct tg3 *tp)
 	return 0;
 }
 
-/*
- * Must not be invoked with interrupt sources disabled and
- * the hardware shutdown down.
- */
-static void tg3_free_consistent(struct tg3 *tp)
+static void tg3_mem_tx_release(struct tg3 *tp)
 {
 	int i;
 
-	for (i = 0; i < tp->irq_cnt; i++) {
+	for (i = 0; i < tp->irq_max; i++) {
 		struct tg3_napi *tnapi = &tp->napi[i];
 
 		if (tnapi->tx_ring) {
@@ -7626,17 +7605,114 @@ static void tg3_free_consistent(struct tg3 *tp)
 
 		kfree(tnapi->tx_buffers);
 		tnapi->tx_buffers = NULL;
+	}
+}
 
-		if (tnapi->rx_rcb) {
-			dma_free_coherent(&tp->pdev->dev,
-					  TG3_RX_RCB_RING_BYTES(tp),
-					  tnapi->rx_rcb,
-					  tnapi->rx_rcb_mapping);
-			tnapi->rx_rcb = NULL;
-		}
+static int tg3_mem_tx_acquire(struct tg3 *tp)
+{
+	int i;
+	struct tg3_napi *tnapi = &tp->napi[0];
+
+	/* If multivector TSS is enabled, vector 0 does not handle
+	 * tx interrupts.  Don't allocate any resources for it.
+	 */
+	if (tg3_flag(tp, ENABLE_TSS))
+		tnapi++;
+
+	for (i = 0; i < tp->txq_cnt; i++, tnapi++) {
+		tnapi->tx_buffers = kzalloc(sizeof(struct tg3_tx_ring_info) *
+					    TG3_TX_RING_SIZE, GFP_KERNEL);
+		if (!tnapi->tx_buffers)
+			goto err_out;
+
+		tnapi->tx_ring = dma_alloc_coherent(&tp->pdev->dev,
+						    TG3_TX_RING_BYTES,
+						    &tnapi->tx_desc_mapping,
+						    GFP_KERNEL);
+		if (!tnapi->tx_ring)
+			goto err_out;
+	}
+
+	return 0;
+
+err_out:
+	tg3_mem_tx_release(tp);
+	return -ENOMEM;
+}
+
+static void tg3_mem_rx_release(struct tg3 *tp)
+{
+	int i;
+
+	for (i = 0; i < tp->irq_max; i++) {
+		struct tg3_napi *tnapi = &tp->napi[i];
 
 		tg3_rx_prodring_fini(tp, &tnapi->prodring);
 
+		if (!tnapi->rx_rcb)
+			continue;
+
+		dma_free_coherent(&tp->pdev->dev,
+				  TG3_RX_RCB_RING_BYTES(tp),
+				  tnapi->rx_rcb,
+				  tnapi->rx_rcb_mapping);
+		tnapi->rx_rcb = NULL;
+	}
+}
+
+static int tg3_mem_rx_acquire(struct tg3 *tp)
+{
+	unsigned int i, limit;
+
+	limit = tp->rxq_cnt;
+
+	/* If RSS is enabled, we need a (dummy) producer ring
+	 * set on vector zero.  This is the true hw prodring.
+	 */
+	if (tg3_flag(tp, ENABLE_RSS))
+		limit++;
+
+	for (i = 0; i < limit; i++) {
+		struct tg3_napi *tnapi = &tp->napi[i];
+
+		if (tg3_rx_prodring_init(tp, &tnapi->prodring))
+			goto err_out;
+
+		/* If multivector RSS is enabled, vector 0
+		 * does not handle rx or tx interrupts.
+		 * Don't allocate any resources for it.
+		 */
+		if (!i && tg3_flag(tp, ENABLE_RSS))
+			continue;
+
+		tnapi->rx_rcb = dma_alloc_coherent(&tp->pdev->dev,
+						   TG3_RX_RCB_RING_BYTES(tp),
+						   &tnapi->rx_rcb_mapping,
+						   GFP_KERNEL);
+		if (!tnapi->rx_rcb)
+			goto err_out;
+
+		memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
+	}
+
+	return 0;
+
+err_out:
+	tg3_mem_rx_release(tp);
+	return -ENOMEM;
+}
+
+/*
+ * Must not be invoked with interrupt sources disabled and
+ * the hardware shutdown down.
+ */
+static void tg3_free_consistent(struct tg3 *tp)
+{
+	int i;
+
+	for (i = 0; i < tp->irq_cnt; i++) {
+		struct tg3_napi *tnapi = &tp->napi[i];
+
 		if (tnapi->hw_status) {
 			dma_free_coherent(&tp->pdev->dev, TG3_HW_STATUS_SIZE,
 					  tnapi->hw_status,
@@ -7645,6 +7721,9 @@ static void tg3_free_consistent(struct tg3 *tp)
 		}
 	}
 
+	tg3_mem_rx_release(tp);
+	tg3_mem_tx_release(tp);
+
 	if (tp->hw_stats) {
 		dma_free_coherent(&tp->pdev->dev, sizeof(struct tg3_hw_stats),
 				  tp->hw_stats, tp->stats_mapping);
@@ -7683,72 +7762,38 @@ static int tg3_alloc_consistent(struct tg3 *tp)
 		memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
 		sblk = tnapi->hw_status;
 
-		if (tg3_rx_prodring_init(tp, &tnapi->prodring))
-			goto err_out;
+		if (tg3_flag(tp, ENABLE_RSS)) {
+			u16 *prodptr = 0;
 
-		/* If multivector TSS is enabled, vector 0 does not handle
-		 * tx interrupts.  Don't allocate any resources for it.
-		 */
-		if ((!i && !tg3_flag(tp, ENABLE_TSS)) ||
-		    (i && tg3_flag(tp, ENABLE_TSS))) {
-			tnapi->tx_buffers = kzalloc(
-					       sizeof(struct tg3_tx_ring_info) *
-					       TG3_TX_RING_SIZE, GFP_KERNEL);
-			if (!tnapi->tx_buffers)
-				goto err_out;
-
-			tnapi->tx_ring = dma_alloc_coherent(&tp->pdev->dev,
-							    TG3_TX_RING_BYTES,
-							&tnapi->tx_desc_mapping,
-							    GFP_KERNEL);
-			if (!tnapi->tx_ring)
-				goto err_out;
-		}
-
-		/*
-		 * When RSS is enabled, the status block format changes
-		 * slightly.  The "rx_jumbo_consumer", "reserved",
-		 * and "rx_mini_consumer" members get mapped to the
-		 * other three rx return ring producer indexes.
-		 */
-		switch (i) {
-		default:
-			if (tg3_flag(tp, ENABLE_RSS)) {
-				tnapi->rx_rcb_prod_idx = NULL;
+			/*
+			 * When RSS is enabled, the status block format changes
+			 * slightly.  The "rx_jumbo_consumer", "reserved",
+			 * and "rx_mini_consumer" members get mapped to the
+			 * other three rx return ring producer indexes.
+			 */
+			switch (i) {
+			case 1:
+				prodptr = &sblk->idx[0].rx_producer;
+				break;
+			case 2:
+				prodptr = &sblk->rx_jumbo_consumer;
+				break;
+			case 3:
+				prodptr = &sblk->reserved;
+				break;
+			case 4:
+				prodptr = &sblk->rx_mini_consumer;
 				break;
 			}
-			/* Fall through */
-		case 1:
+			tnapi->rx_rcb_prod_idx = prodptr;
+		} else {
 			tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
-			break;
-		case 2:
-			tnapi->rx_rcb_prod_idx = &sblk->rx_jumbo_consumer;
-			break;
-		case 3:
-			tnapi->rx_rcb_prod_idx = &sblk->reserved;
-			break;
-		case 4:
-			tnapi->rx_rcb_prod_idx = &sblk->rx_mini_consumer;
-			break;
 		}
-
-		/*
-		 * If multivector RSS is enabled, vector 0 does not handle
-		 * rx or tx interrupts.  Don't allocate any resources for it.
-		 */
-		if (!i && tg3_flag(tp, ENABLE_RSS))
-			continue;
-
-		tnapi->rx_rcb = dma_alloc_coherent(&tp->pdev->dev,
-						   TG3_RX_RCB_RING_BYTES(tp),
-						   &tnapi->rx_rcb_mapping,
-						   GFP_KERNEL);
-		if (!tnapi->rx_rcb)
-			goto err_out;
-
-		memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
 	}
 
+	if (tg3_mem_tx_acquire(tp) || tg3_mem_rx_acquire(tp))
+		goto err_out;
+
 	return 0;
 
 err_out:
@@ -8054,7 +8099,7 @@ static int tg3_chip_reset(struct tg3 *tp)
 
 	udelay(120);
 
-	if (tg3_flag(tp, PCI_EXPRESS) && pci_pcie_cap(tp->pdev)) {
+	if (tg3_flag(tp, PCI_EXPRESS) && pci_is_pcie(tp->pdev)) {
 		u16 val16;
 
 		if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
@@ -8071,24 +8116,17 @@ static int tg3_chip_reset(struct tg3 *tp)
 		}
 
 		/* Clear the "no snoop" and "relaxed ordering" bits. */
-		pci_read_config_word(tp->pdev,
-				     pci_pcie_cap(tp->pdev) + PCI_EXP_DEVCTL,
-				     &val16);
-		val16 &= ~(PCI_EXP_DEVCTL_RELAX_EN |
-			   PCI_EXP_DEVCTL_NOSNOOP_EN);
+		val16 = PCI_EXP_DEVCTL_RELAX_EN | PCI_EXP_DEVCTL_NOSNOOP_EN;
 		/*
 		 * Older PCIe devices only support the 128 byte
 		 * MPS setting.  Enforce the restriction.
 		 */
 		if (!tg3_flag(tp, CPMU_PRESENT))
-			val16 &= ~PCI_EXP_DEVCTL_PAYLOAD;
-		pci_write_config_word(tp->pdev,
-				      pci_pcie_cap(tp->pdev) + PCI_EXP_DEVCTL,
-				      val16);
+			val16 |= PCI_EXP_DEVCTL_PAYLOAD;
+		pcie_capability_clear_word(tp->pdev, PCI_EXP_DEVCTL, val16);
 
 		/* Clear error status */
-		pci_write_config_word(tp->pdev,
-				      pci_pcie_cap(tp->pdev) + PCI_EXP_DEVSTA,
+		pcie_capability_write_word(tp->pdev, PCI_EXP_DEVSTA,
 				      PCI_EXP_DEVSTA_CED |
 				      PCI_EXP_DEVSTA_NFED |
 				      PCI_EXP_DEVSTA_FED |
@@ -8269,9 +8307,10 @@ static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
 			      nic_addr);
 }
 
-static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
+
+static void tg3_coal_tx_init(struct tg3 *tp, struct ethtool_coalesce *ec)
 {
-	int i;
+	int i = 0;
 
 	if (!tg3_flag(tp, ENABLE_TSS)) {
 		tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
@@ -8281,31 +8320,43 @@ static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
 		tw32(HOSTCC_TXCOL_TICKS, 0);
 		tw32(HOSTCC_TXMAX_FRAMES, 0);
 		tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
+
+		for (; i < tp->txq_cnt; i++) {
+			u32 reg;
+
+			reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
+			tw32(reg, ec->tx_coalesce_usecs);
+			reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
+			tw32(reg, ec->tx_max_coalesced_frames);
+			reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
+			tw32(reg, ec->tx_max_coalesced_frames_irq);
+		}
 	}
 
+	for (; i < tp->irq_max - 1; i++) {
+		tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
+		tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
+		tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
+	}
+}
+
+static void tg3_coal_rx_init(struct tg3 *tp, struct ethtool_coalesce *ec)
+{
+	int i = 0;
+	u32 limit = tp->rxq_cnt;
+
 	if (!tg3_flag(tp, ENABLE_RSS)) {
 		tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
 		tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
 		tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
+		limit--;
 	} else {
 		tw32(HOSTCC_RXCOL_TICKS, 0);
 		tw32(HOSTCC_RXMAX_FRAMES, 0);
 		tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
 	}
 
-	if (!tg3_flag(tp, 5705_PLUS)) {
-		u32 val = ec->stats_block_coalesce_usecs;
-
-		tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
-		tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
-
-		if (!netif_carrier_ok(tp->dev))
-			val = 0;
-
-		tw32(HOSTCC_STAT_COAL_TICKS, val);
-	}
-
-	for (i = 0; i < tp->irq_cnt - 1; i++) {
+	for (; i < limit; i++) {
 		u32 reg;
 
 		reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
@@ -8314,27 +8365,30 @@ static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
 		tw32(reg, ec->rx_max_coalesced_frames);
 		reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
 		tw32(reg, ec->rx_max_coalesced_frames_irq);
-
-		if (tg3_flag(tp, ENABLE_TSS)) {
-			reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
-			tw32(reg, ec->tx_coalesce_usecs);
-			reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
-			tw32(reg, ec->tx_max_coalesced_frames);
-			reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
-			tw32(reg, ec->tx_max_coalesced_frames_irq);
-		}
 	}
 
 	for (; i < tp->irq_max - 1; i++) {
 		tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
 		tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
 		tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
+	}
+}
 
-		if (tg3_flag(tp, ENABLE_TSS)) {
-			tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
-			tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
-			tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
-		}
+static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
+{
+	tg3_coal_tx_init(tp, ec);
+	tg3_coal_rx_init(tp, ec);
+
+	if (!tg3_flag(tp, 5705_PLUS)) {
+		u32 val = ec->stats_block_coalesce_usecs;
+
+		tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
+		tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
+
+		if (!netif_carrier_ok(tp->dev))
+			val = 0;
+
+		tw32(HOSTCC_STAT_COAL_TICKS, val);
 	}
 }
 
@@ -8592,13 +8646,12 @@ static void __tg3_set_rx_mode(struct net_device *dev)
 	}
 }
 
-static void tg3_rss_init_dflt_indir_tbl(struct tg3 *tp)
+static void tg3_rss_init_dflt_indir_tbl(struct tg3 *tp, u32 qcnt)
 {
 	int i;
 
 	for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++)
-		tp->rss_ind_tbl[i] =
-			ethtool_rxfh_indir_default(i, tp->irq_cnt - 1);
+		tp->rss_ind_tbl[i] = ethtool_rxfh_indir_default(i, qcnt);
 }
 
 static void tg3_rss_check_indir_tbl(struct tg3 *tp)
@@ -8620,7 +8673,7 @@ static void tg3_rss_check_indir_tbl(struct tg3 *tp)
 	}
 
 	if (i != TG3_RSS_INDIR_TBL_SIZE)
-		tg3_rss_init_dflt_indir_tbl(tp);
+		tg3_rss_init_dflt_indir_tbl(tp, tp->rxq_cnt);
 }
 
 static void tg3_rss_write_indir_tbl(struct tg3 *tp)
@@ -9517,7 +9570,6 @@ static int tg3_init_hw(struct tg3 *tp, int reset_phy)
 	return tg3_reset_hw(tp, reset_phy);
 }
 
-#if IS_ENABLED(CONFIG_HWMON)
 static void tg3_sd_scan_scratchpad(struct tg3 *tp, struct tg3_ocir *ocir)
 {
 	int i;
@@ -9570,22 +9622,17 @@ static const struct attribute_group tg3_group = {
 	.attrs = tg3_attributes,
 };
 
-#endif
-
 static void tg3_hwmon_close(struct tg3 *tp)
 {
-#if IS_ENABLED(CONFIG_HWMON)
 	if (tp->hwmon_dev) {
 		hwmon_device_unregister(tp->hwmon_dev);
 		tp->hwmon_dev = NULL;
 		sysfs_remove_group(&tp->pdev->dev.kobj, &tg3_group);
 	}
-#endif
 }
 
 static void tg3_hwmon_open(struct tg3 *tp)
 {
-#if IS_ENABLED(CONFIG_HWMON)
 	int i, err;
 	u32 size = 0;
 	struct pci_dev *pdev = tp->pdev;
@@ -9617,7 +9664,6 @@ static void tg3_hwmon_open(struct tg3 *tp)
 		dev_err(&pdev->dev, "Cannot register hwmon device, aborting\n");
 		sysfs_remove_group(&pdev->dev.kobj, &tg3_group);
 	}
-#endif
 }
 
 
@@ -10141,21 +10187,43 @@ static int tg3_request_firmware(struct tg3 *tp)
 	return 0;
 }
 
-static bool tg3_enable_msix(struct tg3 *tp)
+static u32 tg3_irq_count(struct tg3 *tp)
 {
-	int i, rc;
-	struct msix_entry msix_ent[tp->irq_max];
+	u32 irq_cnt = max(tp->rxq_cnt, tp->txq_cnt);
 
-	tp->irq_cnt = netif_get_num_default_rss_queues();
-	if (tp->irq_cnt > 1) {
+	if (irq_cnt > 1) {
 		/* We want as many rx rings enabled as there are cpus.
 		 * In multiqueue MSI-X mode, the first MSI-X vector
 		 * only deals with link interrupts, etc, so we add
 		 * one to the number of vectors we are requesting.
 		 */
-		tp->irq_cnt = min_t(unsigned, tp->irq_cnt + 1, tp->irq_max);
+		irq_cnt = min_t(unsigned, irq_cnt + 1, tp->irq_max);
 	}
 
+	return irq_cnt;
+}
+
+static bool tg3_enable_msix(struct tg3 *tp)
+{
+	int i, rc;
+	struct msix_entry msix_ent[tp->irq_max];
+
+	tp->txq_cnt = tp->txq_req;
+	tp->rxq_cnt = tp->rxq_req;
+	if (!tp->rxq_cnt)
+		tp->rxq_cnt = netif_get_num_default_rss_queues();
+	if (tp->rxq_cnt > tp->rxq_max)
+		tp->rxq_cnt = tp->rxq_max;
+
+	/* Disable multiple TX rings by default.  Simple round-robin hardware
+	 * scheduling of the TX rings can cause starvation of rings with
+	 * small packets when other rings have TSO or jumbo packets.
+	 */
+	if (!tp->txq_req)
+		tp->txq_cnt = 1;
+
+	tp->irq_cnt = tg3_irq_count(tp);
+
 	for (i = 0; i < tp->irq_max; i++) {
 		msix_ent[i].entry  = i;
 		msix_ent[i].vector = 0;
@@ -10170,27 +10238,28 @@ static bool tg3_enable_msix(struct tg3 *tp)
 		netdev_notice(tp->dev, "Requested %d MSI-X vectors, received %d\n",
 			      tp->irq_cnt, rc);
 		tp->irq_cnt = rc;
+		tp->rxq_cnt = max(rc - 1, 1);
+		if (tp->txq_cnt)
+			tp->txq_cnt = min(tp->rxq_cnt, tp->txq_max);
 	}
 
 	for (i = 0; i < tp->irq_max; i++)
 		tp->napi[i].irq_vec = msix_ent[i].vector;
 
-	netif_set_real_num_tx_queues(tp->dev, 1);
-	rc = tp->irq_cnt > 1 ? tp->irq_cnt - 1 : 1;
-	if (netif_set_real_num_rx_queues(tp->dev, rc)) {
+	if (netif_set_real_num_rx_queues(tp->dev, tp->rxq_cnt)) {
 		pci_disable_msix(tp->pdev);
 		return false;
 	}
 
-	if (tp->irq_cnt > 1) {
-		tg3_flag_set(tp, ENABLE_RSS);
+	if (tp->irq_cnt == 1)
+		return true;
 
-		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
-		    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
-			tg3_flag_set(tp, ENABLE_TSS);
-			netif_set_real_num_tx_queues(tp->dev, tp->irq_cnt - 1);
-		}
-	}
+	tg3_flag_set(tp, ENABLE_RSS);
+
+	if (tp->txq_cnt > 1)
+		tg3_flag_set(tp, ENABLE_TSS);
+
+	netif_set_real_num_tx_queues(tp->dev, tp->txq_cnt);
 
 	return true;
 }
@@ -10224,6 +10293,11 @@ defcfg:
 	if (!tg3_flag(tp, USING_MSIX)) {
 		tp->irq_cnt = 1;
 		tp->napi[0].irq_vec = tp->pdev->irq;
+	}
+
+	if (tp->irq_cnt == 1) {
+		tp->txq_cnt = 1;
+		tp->rxq_cnt = 1;
 		netif_set_real_num_tx_queues(tp->dev, 1);
 		netif_set_real_num_rx_queues(tp->dev, 1);
 	}
@@ -10241,38 +10315,11 @@ static void tg3_ints_fini(struct tg3 *tp)
 	tg3_flag_clear(tp, ENABLE_TSS);
 }
 
-static int tg3_open(struct net_device *dev)
+static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq)
 {
-	struct tg3 *tp = netdev_priv(dev);
+	struct net_device *dev = tp->dev;
 	int i, err;
 
-	if (tp->fw_needed) {
-		err = tg3_request_firmware(tp);
-		if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
-			if (err)
-				return err;
-		} else if (err) {
-			netdev_warn(tp->dev, "TSO capability disabled\n");
-			tg3_flag_clear(tp, TSO_CAPABLE);
-		} else if (!tg3_flag(tp, TSO_CAPABLE)) {
-			netdev_notice(tp->dev, "TSO capability restored\n");
-			tg3_flag_set(tp, TSO_CAPABLE);
-		}
-	}
-
-	netif_carrier_off(tp->dev);
-
-	err = tg3_power_up(tp);
-	if (err)
-		return err;
-
-	tg3_full_lock(tp, 0);
-
-	tg3_disable_ints(tp);
-	tg3_flag_clear(tp, INIT_COMPLETE);
-
-	tg3_full_unlock(tp);
-
 	/*
 	 * Setup interrupts first so we know how
 	 * many NAPI resources to allocate
@@ -10306,7 +10353,7 @@ static int tg3_open(struct net_device *dev)
 
 	tg3_full_lock(tp, 0);
 
-	err = tg3_init_hw(tp, 1);
+	err = tg3_init_hw(tp, reset_phy);
 	if (err) {
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 		tg3_free_rings(tp);
@@ -10317,7 +10364,7 @@ static int tg3_open(struct net_device *dev)
 	if (err)
 		goto err_out3;
 
-	if (tg3_flag(tp, USING_MSI)) {
+	if (test_irq && tg3_flag(tp, USING_MSI)) {
 		err = tg3_test_msi(tp);
 
 		if (err) {
@@ -10373,20 +10420,18 @@ err_out2:
 
 err_out1:
 	tg3_ints_fini(tp);
-	tg3_frob_aux_power(tp, false);
-	pci_set_power_state(tp->pdev, PCI_D3hot);
+
 	return err;
 }
 
-static int tg3_close(struct net_device *dev)
+static void tg3_stop(struct tg3 *tp)
 {
 	int i;
-	struct tg3 *tp = netdev_priv(dev);
 
 	tg3_napi_disable(tp);
 	tg3_reset_task_cancel(tp);
 
-	netif_tx_stop_all_queues(dev);
+	netif_tx_disable(tp->dev);
 
 	tg3_timer_stop(tp);
 
@@ -10411,13 +10456,60 @@ static int tg3_close(struct net_device *dev)
 
 	tg3_ints_fini(tp);
 
-	/* Clear stats across close / open calls */
-	memset(&tp->net_stats_prev, 0, sizeof(tp->net_stats_prev));
-	memset(&tp->estats_prev, 0, sizeof(tp->estats_prev));
-
 	tg3_napi_fini(tp);
 
 	tg3_free_consistent(tp);
+}
+
+static int tg3_open(struct net_device *dev)
+{
+	struct tg3 *tp = netdev_priv(dev);
+	int err;
+
+	if (tp->fw_needed) {
+		err = tg3_request_firmware(tp);
+		if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
+			if (err)
+				return err;
+		} else if (err) {
+			netdev_warn(tp->dev, "TSO capability disabled\n");
+			tg3_flag_clear(tp, TSO_CAPABLE);
+		} else if (!tg3_flag(tp, TSO_CAPABLE)) {
+			netdev_notice(tp->dev, "TSO capability restored\n");
+			tg3_flag_set(tp, TSO_CAPABLE);
+		}
+	}
+
+	netif_carrier_off(tp->dev);
+
+	err = tg3_power_up(tp);
+	if (err)
+		return err;
+
+	tg3_full_lock(tp, 0);
+
+	tg3_disable_ints(tp);
+	tg3_flag_clear(tp, INIT_COMPLETE);
+
+	tg3_full_unlock(tp);
+
+	err = tg3_start(tp, true, true);
+	if (err) {
+		tg3_frob_aux_power(tp, false);
+		pci_set_power_state(tp->pdev, PCI_D3hot);
+	}
+	return err;
+}
+
+static int tg3_close(struct net_device *dev)
+{
+	struct tg3 *tp = netdev_priv(dev);
+
+	tg3_stop(tp);
+
+	/* Clear stats across close / open calls */
+	memset(&tp->net_stats_prev, 0, sizeof(tp->net_stats_prev));
+	memset(&tp->estats_prev, 0, sizeof(tp->estats_prev));
 
 	tg3_power_down(tp);
 
@@ -11207,11 +11299,11 @@ static int tg3_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
 	switch (info->cmd) {
 	case ETHTOOL_GRXRINGS:
 		if (netif_running(tp->dev))
-			info->data = tp->irq_cnt;
+			info->data = tp->rxq_cnt;
 		else {
 			info->data = num_online_cpus();
-			if (info->data > TG3_IRQ_MAX_VECS_RSS)
-				info->data = TG3_IRQ_MAX_VECS_RSS;
+			if (info->data > TG3_RSS_MAX_NUM_QS)
+				info->data = TG3_RSS_MAX_NUM_QS;
 		}
 
 		/* The first interrupt vector only
@@ -11268,6 +11360,58 @@ static int tg3_set_rxfh_indir(struct net_device *dev, const u32 *indir)
 	return 0;
 }
 
+static void tg3_get_channels(struct net_device *dev,
+			     struct ethtool_channels *channel)
+{
+	struct tg3 *tp = netdev_priv(dev);
+	u32 deflt_qs = netif_get_num_default_rss_queues();
+
+	channel->max_rx = tp->rxq_max;
+	channel->max_tx = tp->txq_max;
+
+	if (netif_running(dev)) {
+		channel->rx_count = tp->rxq_cnt;
+		channel->tx_count = tp->txq_cnt;
+	} else {
+		if (tp->rxq_req)
+			channel->rx_count = tp->rxq_req;
+		else
+			channel->rx_count = min(deflt_qs, tp->rxq_max);
+
+		if (tp->txq_req)
+			channel->tx_count = tp->txq_req;
+		else
+			channel->tx_count = min(deflt_qs, tp->txq_max);
+	}
+}
+
+static int tg3_set_channels(struct net_device *dev,
+			    struct ethtool_channels *channel)
+{
+	struct tg3 *tp = netdev_priv(dev);
+
+	if (!tg3_flag(tp, SUPPORT_MSIX))
+		return -EOPNOTSUPP;
+
+	if (channel->rx_count > tp->rxq_max ||
+	    channel->tx_count > tp->txq_max)
+		return -EINVAL;
+
+	tp->rxq_req = channel->rx_count;
+	tp->txq_req = channel->tx_count;
+
+	if (!netif_running(dev))
+		return 0;
+
+	tg3_stop(tp);
+
+	netif_carrier_off(dev);
+
+	tg3_start(tp, true, false);
+
+	return 0;
+}
+
 static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 {
 	switch (stringset) {
@@ -12516,6 +12660,8 @@ static const struct ethtool_ops tg3_ethtool_ops = {
 	.get_rxfh_indir_size    = tg3_get_rxfh_indir_size,
 	.get_rxfh_indir		= tg3_get_rxfh_indir,
 	.set_rxfh_indir		= tg3_set_rxfh_indir,
+	.get_channels		= tg3_get_channels,
+	.set_channels		= tg3_set_channels,
 	.get_ts_info		= ethtool_op_get_ts_info,
 };
 
@@ -14532,10 +14678,20 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 		if (tg3_flag(tp, 57765_PLUS)) {
 			tg3_flag_set(tp, SUPPORT_MSIX);
 			tp->irq_max = TG3_IRQ_MAX_VECS;
-			tg3_rss_init_dflt_indir_tbl(tp);
 		}
 	}
 
+	tp->txq_max = 1;
+	tp->rxq_max = 1;
+	if (tp->irq_max > 1) {
+		tp->rxq_max = TG3_RSS_MAX_NUM_QS;
+		tg3_rss_init_dflt_indir_tbl(tp, TG3_RSS_MAX_NUM_QS);
+
+		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
+		    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720)
+			tp->txq_max = tp->irq_max - 1;
+	}
+
 	if (tg3_flag(tp, 5755_PLUS) ||
 	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
 		tg3_flag_set(tp, SHORT_DMA_BUG);
@@ -14565,9 +14721,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 
 		tg3_flag_set(tp, PCI_EXPRESS);
 
-		pci_read_config_word(tp->pdev,
-				     pci_pcie_cap(tp->pdev) + PCI_EXP_LNKCTL,
-				     &lnkctl);
+		pcie_capability_read_word(tp->pdev, PCI_EXP_LNKCTL, &lnkctl);
 		if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
 			if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
 			    ASIC_REV_5906) {
@@ -16397,7 +16551,7 @@ done:
 	rtnl_unlock();
 }
 
-static struct pci_error_handlers tg3_err_handler = {
+static const struct pci_error_handlers tg3_err_handler = {
 	.error_detected	= tg3_io_error_detected,
 	.slot_reset	= tg3_io_slot_reset,
 	.resume		= tg3_io_resume
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 6d52cb28682..d9308c32102 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2860,7 +2860,8 @@ struct tg3_rx_prodring_set {
 	dma_addr_t			rx_jmb_mapping;
 };
 
-#define TG3_IRQ_MAX_VECS_RSS		5
+#define TG3_RSS_MAX_NUM_QS		4
+#define TG3_IRQ_MAX_VECS_RSS		(TG3_RSS_MAX_NUM_QS + 1)
 #define TG3_IRQ_MAX_VECS		TG3_IRQ_MAX_VECS_RSS
 
 struct tg3_napi {
@@ -3037,6 +3038,9 @@ struct tg3 {
 	void				(*write32_tx_mbox) (struct tg3 *, u32,
 							    u32);
 	u32				dma_limit;
+	u32				txq_req;
+	u32				txq_cnt;
+	u32				txq_max;
 
 	/* begin "rx thread" cacheline section */
 	struct tg3_napi			napi[TG3_IRQ_MAX_VECS];
@@ -3051,6 +3055,9 @@ struct tg3 {
 	u32				rx_std_max_post;
 	u32				rx_offset;
 	u32				rx_pkt_map_sz;
+	u32				rxq_req;
+	u32				rxq_cnt;
+	u32				rxq_max;
 	bool				rx_refill;
 
 
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index b441f33258e..ce1eac52947 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -3268,6 +3268,7 @@ bnad_pci_probe(struct pci_dev *pdev,
 	 *	Output : using_dac = 1 for 64 bit DMA
 	 *			   = 0 for 32 bit DMA
 	 */
+	using_dac = false;
 	err = bnad_pci_init(bnad, pdev, &using_dac);
 	if (err)
 		goto unlock_mutex;
diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
index 77884191a8c..4e980a7886f 100644
--- a/drivers/net/ethernet/cadence/at91_ether.c
+++ b/drivers/net/ethernet/cadence/at91_ether.c
@@ -1086,7 +1086,7 @@ static int __init at91ether_probe(struct platform_device *pdev)
 	/* Clock */
 	lp->ether_clk = clk_get(&pdev->dev, "ether_clk");
 	if (IS_ERR(lp->ether_clk)) {
-		res = -ENODEV;
+		res = PTR_ERR(lp->ether_clk);
 		goto err_ioumap;
 	}
 	clk_enable(lp->ether_clk);
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index 6505070abcf..9c9f3260344 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -1394,7 +1394,7 @@ static int offload_close(struct t3cdev *tdev)
 	sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group);
 
 	/* Flush work scheduled while releasing TIDs */
-	flush_work_sync(&td->tid_release_task);
+	flush_work(&td->tid_release_task);
 
 	tdev->lldev = NULL;
 	cxgb3_set_dummy_ops(tdev);
@@ -3036,7 +3036,7 @@ static void t3_io_resume(struct pci_dev *pdev)
 	t3_resume_ports(adapter);
 }
 
-static struct pci_error_handlers t3_err_handler = {
+static const struct pci_error_handlers t3_err_handler = {
 	.error_detected = t3_io_error_detected,
 	.slot_reset = t3_io_slot_reset,
 	.resume = t3_io_resume,
diff --git a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
index bff8a3cdd3d..aef45d3113b 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
@@ -3289,22 +3289,18 @@ static void config_pcie(struct adapter *adap)
 	unsigned int log2_width, pldsize;
 	unsigned int fst_trn_rx, fst_trn_tx, acklat, rpllmt;
 
-	pci_read_config_word(adap->pdev,
-			     adap->pdev->pcie_cap + PCI_EXP_DEVCTL,
-			     &val);
+	pcie_capability_read_word(adap->pdev, PCI_EXP_DEVCTL, &val);
 	pldsize = (val & PCI_EXP_DEVCTL_PAYLOAD) >> 5;
 
 	pci_read_config_word(adap->pdev, 0x2, &devid);
 	if (devid == 0x37) {
-		pci_write_config_word(adap->pdev,
-				      adap->pdev->pcie_cap + PCI_EXP_DEVCTL,
-				      val & ~PCI_EXP_DEVCTL_READRQ &
-				      ~PCI_EXP_DEVCTL_PAYLOAD);
+		pcie_capability_write_word(adap->pdev, PCI_EXP_DEVCTL,
+					   val & ~PCI_EXP_DEVCTL_READRQ &
+					   ~PCI_EXP_DEVCTL_PAYLOAD);
 		pldsize = 0;
 	}
 
-	pci_read_config_word(adap->pdev, adap->pdev->pcie_cap + PCI_EXP_LNKCTL,
-			     &val);
+	pcie_capability_read_word(adap->pdev, PCI_EXP_LNKCTL, &val);
 
 	fst_trn_tx = G_NUMFSTTRNSEQ(t3_read_reg(adap, A_PCIE_PEX_CTRL0));
 	fst_trn_rx = adap->params.rev == 0 ? fst_trn_tx :
@@ -3425,15 +3421,13 @@ out_err:
 static void get_pci_mode(struct adapter *adapter, struct pci_params *p)
 {
 	static unsigned short speed_map[] = { 33, 66, 100, 133 };
-	u32 pci_mode, pcie_cap;
+	u32 pci_mode;
 
-	pcie_cap = pci_pcie_cap(adapter->pdev);
-	if (pcie_cap) {
+	if (pci_is_pcie(adapter->pdev)) {
 		u16 val;
 
 		p->variant = PCI_VARIANT_PCIE;
-		pci_read_config_word(adapter->pdev, pcie_cap + PCI_EXP_LNKSTA,
-					&val);
+		pcie_capability_read_word(adapter->pdev, PCI_EXP_LNKSTA, &val);
 		p->width = (val >> 4) & 0x3f;
 		return;
 	}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index ec2dafe8ae5..745a1f53361 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -67,12 +67,12 @@ enum {
 };
 
 enum {
-	MEMWIN0_APERTURE = 65536,
-	MEMWIN0_BASE     = 0x30000,
+	MEMWIN0_APERTURE = 2048,
+	MEMWIN0_BASE     = 0x1b800,
 	MEMWIN1_APERTURE = 32768,
 	MEMWIN1_BASE     = 0x28000,
-	MEMWIN2_APERTURE = 2048,
-	MEMWIN2_BASE     = 0x1b800,
+	MEMWIN2_APERTURE = 65536,
+	MEMWIN2_BASE     = 0x30000,
 };
 
 enum dev_master {
@@ -211,6 +211,9 @@ struct tp_err_stats {
 struct tp_params {
 	unsigned int ntxchan;        /* # of Tx channels */
 	unsigned int tre;            /* log2 of core clocks per TP tick */
+
+	uint32_t dack_re;            /* DACK timer resolution */
+	unsigned short tx_modq[NCHAN];	/* channel to modulation queue map */
 };
 
 struct vpd_params {
@@ -315,6 +318,10 @@ enum {                                 /* adapter flags */
 	USING_MSI          = (1 << 1),
 	USING_MSIX         = (1 << 2),
 	FW_OK              = (1 << 4),
+	RSS_TNLALLLOOKUP   = (1 << 5),
+	USING_SOFT_PARAMS  = (1 << 6),
+	MASTER_PF          = (1 << 7),
+	FW_OFLD_CONN       = (1 << 9),
 };
 
 struct rx_sw_desc;
@@ -467,6 +474,11 @@ struct sge {
 	u16 rdma_rxq[NCHAN];
 	u16 timer_val[SGE_NTIMERS];
 	u8 counter_val[SGE_NCOUNTERS];
+	u32 fl_pg_order;            /* large page allocation size */
+	u32 stat_len;               /* length of status page at ring end */
+	u32 pktshift;               /* padding between CPL & packet data */
+	u32 fl_align;               /* response queue message alignment */
+	u32 fl_starve_thres;        /* Free List starvation threshold */
 	unsigned int starve_thres;
 	u8 idma_state[2];
 	unsigned int egr_start;
@@ -511,6 +523,8 @@ struct adapter {
 	struct net_device *port[MAX_NPORTS];
 	u8 chan_map[NCHAN];                   /* channel -> port map */
 
+	unsigned int l2t_start;
+	unsigned int l2t_end;
 	struct l2t_data *l2t;
 	void *uld_handle[CXGB4_ULD_MAX];
 	struct list_head list_node;
@@ -619,7 +633,7 @@ int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
 int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
 			  struct net_device *dev, unsigned int iqid);
 irqreturn_t t4_sge_intr_msix(int irq, void *cookie);
-void t4_sge_init(struct adapter *adap);
+int t4_sge_init(struct adapter *adap);
 void t4_sge_start(struct adapter *adap);
 void t4_sge_stop(struct adapter *adap);
 extern int dbfifo_int_thresh;
@@ -638,6 +652,14 @@ static inline unsigned int us_to_core_ticks(const struct adapter *adap,
 	return (us * adap->params.vpd.cclk) / 1000;
 }
 
+static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
+					    unsigned int ticks)
+{
+	/* add Core Clock / 2 to round ticks to nearest uS */
+	return ((ticks * 1000 + adapter->params.vpd.cclk/2) /
+		adapter->params.vpd.cclk);
+}
+
 void t4_set_reg_field(struct adapter *adap, unsigned int addr, u32 mask,
 		      u32 val);
 
@@ -656,6 +678,9 @@ static inline int t4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd,
 	return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false);
 }
 
+void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
+		       unsigned int data_reg, const u32 *vals,
+		       unsigned int nregs, unsigned int start_idx);
 void t4_intr_enable(struct adapter *adapter);
 void t4_intr_disable(struct adapter *adapter);
 int t4_slow_intr_handler(struct adapter *adapter);
@@ -664,8 +689,12 @@ int t4_wait_dev_ready(struct adapter *adap);
 int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
 		  struct link_config *lc);
 int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);
+int t4_memory_write(struct adapter *adap, int mtype, u32 addr, u32 len,
+		    __be32 *buf);
 int t4_seeprom_wp(struct adapter *adapter, bool enable);
+int get_vpd_params(struct adapter *adapter, struct vpd_params *p);
 int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size);
+unsigned int t4_flash_cfg_addr(struct adapter *adapter);
 int t4_check_fw_version(struct adapter *adapter);
 int t4_prep_adapter(struct adapter *adapter);
 int t4_port_init(struct adapter *adap, int mbox, int pf, int vf);
@@ -680,6 +709,8 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
 
 void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p);
 void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log);
+void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
+			    unsigned int mask, unsigned int val);
 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
 			 struct tp_tcp_stats *v6);
 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
@@ -695,6 +726,16 @@ int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
 int t4_fw_bye(struct adapter *adap, unsigned int mbox);
 int t4_early_init(struct adapter *adap, unsigned int mbox);
 int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset);
+int t4_fw_halt(struct adapter *adap, unsigned int mbox, int force);
+int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset);
+int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
+		  const u8 *fw_data, unsigned int size, int force);
+int t4_fw_config_file(struct adapter *adap, unsigned int mbox,
+		      unsigned int mtype, unsigned int maddr,
+		      u32 *finiver, u32 *finicsum, u32 *cfcsum);
+int t4_fixup_host_params(struct adapter *adap, unsigned int page_size,
+			  unsigned int cache_line_size);
+int t4_fw_initialize(struct adapter *adap, unsigned int mbox);
 int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
 		    unsigned int vf, unsigned int nparams, const u32 *params,
 		    u32 *val);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 5ed49af23d6..6b9f6bb2f7e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -78,28 +78,45 @@
  */
 #define MAX_SGE_TIMERVAL 200U
 
-#ifdef CONFIG_PCI_IOV
-/*
- * Virtual Function provisioning constants.  We need two extra Ingress Queues
- * with Interrupt capability to serve as the VF's Firmware Event Queue and
- * Forwarded Interrupt Queue (when using MSI mode) -- neither will have Free
- * Lists associated with them).  For each Ethernet/Control Egress Queue and
- * for each Free List, we need an Egress Context.
- */
 enum {
+	/*
+	 * Physical Function provisioning constants.
+	 */
+	PFRES_NVI = 4,			/* # of Virtual Interfaces */
+	PFRES_NETHCTRL = 128,		/* # of EQs used for ETH or CTRL Qs */
+	PFRES_NIQFLINT = 128,		/* # of ingress Qs/w Free List(s)/intr
+					 */
+	PFRES_NEQ = 256,		/* # of egress queues */
+	PFRES_NIQ = 0,			/* # of ingress queues */
+	PFRES_TC = 0,			/* PCI-E traffic class */
+	PFRES_NEXACTF = 128,		/* # of exact MPS filters */
+
+	PFRES_R_CAPS = FW_CMD_CAP_PF,
+	PFRES_WX_CAPS = FW_CMD_CAP_PF,
+
+#ifdef CONFIG_PCI_IOV
+	/*
+	 * Virtual Function provisioning constants.  We need two extra Ingress
+	 * Queues with Interrupt capability to serve as the VF's Firmware
+	 * Event Queue and Forwarded Interrupt Queue (when using MSI mode) --
+	 * neither will have Free Lists associated with them).  For each
+	 * Ethernet/Control Egress Queue and for each Free List, we need an
+	 * Egress Context.
+	 */
 	VFRES_NPORTS = 1,		/* # of "ports" per VF */
 	VFRES_NQSETS = 2,		/* # of "Queue Sets" per VF */
 
 	VFRES_NVI = VFRES_NPORTS,	/* # of Virtual Interfaces */
 	VFRES_NETHCTRL = VFRES_NQSETS,	/* # of EQs used for ETH or CTRL Qs */
 	VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */
-	VFRES_NIQ = 0,			/* # of non-fl/int ingress queues */
 	VFRES_NEQ = VFRES_NQSETS*2,	/* # of egress queues */
+	VFRES_NIQ = 0,			/* # of non-fl/int ingress queues */
 	VFRES_TC = 0,			/* PCI-E traffic class */
 	VFRES_NEXACTF = 16,		/* # of exact MPS filters */
 
 	VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT,
 	VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF,
+#endif
 };
 
 /*
@@ -146,7 +163,6 @@ static unsigned int pfvfres_pmask(struct adapter *adapter,
 	}
 	/*NOTREACHED*/
 }
-#endif
 
 enum {
 	MAX_TXQ_ENTRIES      = 16384,
@@ -193,6 +209,7 @@ static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = {
 };
 
 #define FW_FNAME "cxgb4/t4fw.bin"
+#define FW_CFNAME "cxgb4/t4-config.txt"
 
 MODULE_DESCRIPTION(DRV_DESC);
 MODULE_AUTHOR("Chelsio Communications");
@@ -201,6 +218,28 @@ MODULE_VERSION(DRV_VERSION);
 MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl);
 MODULE_FIRMWARE(FW_FNAME);
 
+/*
+ * Normally we're willing to become the firmware's Master PF but will be happy
+ * if another PF has already become the Master and initialized the adapter.
+ * Setting "force_init" will cause this driver to forcibly establish itself as
+ * the Master PF and initialize the adapter.
+ */
+static uint force_init;
+
+module_param(force_init, uint, 0644);
+MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter");
+
+/*
+ * Normally if the firmware we connect to has Configuration File support, we
+ * use that and only fall back to the old Driver-based initialization if the
+ * Configuration File fails for some reason.  If force_old_init is set, then
+ * we'll always use the old Driver-based initialization sequence.
+ */
+static uint force_old_init;
+
+module_param(force_old_init, uint, 0644);
+MODULE_PARM_DESC(force_old_init, "Force old initialization sequence");
+
 static int dflt_msg_enable = DFLT_MSG_ENABLE;
 
 module_param(dflt_msg_enable, int, 0644);
@@ -236,6 +275,20 @@ module_param_array(intr_cnt, uint, NULL, 0644);
 MODULE_PARM_DESC(intr_cnt,
 		 "thresholds 1..3 for queue interrupt packet counters");
 
+/*
+ * Normally we tell the chip to deliver Ingress Packets into our DMA buffers
+ * offset by 2 bytes in order to have the IP headers line up on 4-byte
+ * boundaries.  This is a requirement for many architectures which will throw
+ * a machine check fault if an attempt is made to access one of the 4-byte IP
+ * header fields on a non-4-byte boundary.  And it's a major performance issue
+ * even on some architectures which allow it like some implementations of the
+ * x86 ISA.  However, some architectures don't mind this and for some very
+ * edge-case performance sensitive applications (like forwarding large volumes
+ * of small packets), setting this DMA offset to 0 will decrease the number of
+ * PCI-E Bus transfers enough to measurably affect performance.
+ */
+static int rx_dma_offset = 2;
+
 static bool vf_acls;
 
 #ifdef CONFIG_PCI_IOV
@@ -248,6 +301,30 @@ module_param_array(num_vf, uint, NULL, 0644);
 MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3");
 #endif
 
+/*
+ * The filter TCAM has a fixed portion and a variable portion.  The fixed
+ * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP
+ * ports.  The variable portion is 36 bits which can include things like Exact
+ * Match MAC Index (9 bits), Ether Type (16 bits), IP Protocol (8 bits),
+ * [Inner] VLAN Tag (17 bits), etc. which, if all were somehow selected, would
+ * far exceed the 36-bit budget for this "compressed" header portion of the
+ * filter.  Thus, we have a scarce resource which must be carefully managed.
+ *
+ * By default we set this up to mostly match the set of filter matching
+ * capabilities of T3 but with accommodations for some of T4's more
+ * interesting features:
+ *
+ *   { IP Fragment (1), MPS Match Type (3), IP Protocol (8),
+ *     [Inner] VLAN (17), Port (3), FCoE (1) }
+ */
+enum {
+	TP_VLAN_PRI_MAP_DEFAULT = HW_TPL_FR_MT_PR_IV_P_FC,
+	TP_VLAN_PRI_MAP_FIRST = FCOE_SHIFT,
+	TP_VLAN_PRI_MAP_LAST = FRAGMENTATION_SHIFT,
+};
+
+static unsigned int tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT;
+
 static struct dentry *cxgb4_debugfs_root;
 
 static LIST_HEAD(adapter_list);
@@ -852,11 +929,25 @@ static int upgrade_fw(struct adapter *adap)
 	 */
 	if (FW_HDR_FW_VER_MAJOR_GET(adap->params.fw_vers) != FW_VERSION_MAJOR ||
 	    vers > adap->params.fw_vers) {
-		ret = -t4_load_fw(adap, fw->data, fw->size);
+		dev_info(dev, "upgrading firmware ...\n");
+		ret = t4_fw_upgrade(adap, adap->mbox, fw->data, fw->size,
+				    /*force=*/false);
 		if (!ret)
-			dev_info(dev, "firmware upgraded to version %pI4 from "
-				 FW_FNAME "\n", &hdr->fw_ver);
+			dev_info(dev, "firmware successfully upgraded to "
+				 FW_FNAME " (%d.%d.%d.%d)\n",
+				 FW_HDR_FW_VER_MAJOR_GET(vers),
+				 FW_HDR_FW_VER_MINOR_GET(vers),
+				 FW_HDR_FW_VER_MICRO_GET(vers),
+				 FW_HDR_FW_VER_BUILD_GET(vers));
+		else
+			dev_err(dev, "firmware upgrade failed! err=%d\n", -ret);
+	} else {
+		/*
+		 * Tell our caller that we didn't upgrade the firmware.
+		 */
+		ret = -EINVAL;
 	}
+
 out:	release_firmware(fw);
 	return ret;
 }
@@ -2470,8 +2561,8 @@ int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx,
 		else
 			delta = size - hw_pidx + pidx;
 		wmb();
-		t4_write_reg(adap, MYPF_REG(A_SGE_PF_KDOORBELL),
-			     V_QID(qid) | V_PIDX(delta));
+		t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
+			     QID(qid) | PIDX(delta));
 	}
 out:
 	return ret;
@@ -2579,8 +2670,8 @@ static void sync_txq_pidx(struct adapter *adap, struct sge_txq *q)
 		else
 			delta = q->size - hw_pidx + q->db_pidx;
 		wmb();
-		t4_write_reg(adap, MYPF_REG(A_SGE_PF_KDOORBELL),
-				V_QID(q->cntxt_id) | V_PIDX(delta));
+		t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
+			     QID(q->cntxt_id) | PIDX(delta));
 	}
 out:
 	q->db_disabled = 0;
@@ -2617,9 +2708,9 @@ static void process_db_full(struct work_struct *work)
 
 	notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL);
 	drain_db_fifo(adap, dbfifo_drain_delay);
-	t4_set_reg_field(adap, A_SGE_INT_ENABLE3,
-			F_DBFIFO_HP_INT | F_DBFIFO_LP_INT,
-			F_DBFIFO_HP_INT | F_DBFIFO_LP_INT);
+	t4_set_reg_field(adap, SGE_INT_ENABLE3,
+			 DBFIFO_HP_INT | DBFIFO_LP_INT,
+			 DBFIFO_HP_INT | DBFIFO_LP_INT);
 	notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY);
 }
 
@@ -2639,8 +2730,8 @@ static void process_db_drop(struct work_struct *work)
 
 void t4_db_full(struct adapter *adap)
 {
-	t4_set_reg_field(adap, A_SGE_INT_ENABLE3,
-			F_DBFIFO_HP_INT | F_DBFIFO_LP_INT, 0);
+	t4_set_reg_field(adap, SGE_INT_ENABLE3,
+			 DBFIFO_HP_INT | DBFIFO_LP_INT, 0);
 	queue_work(workq, &adap->db_full_task);
 }
 
@@ -3076,6 +3167,10 @@ static void setup_memwin(struct adapter *adap)
 	t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2),
 		     (bar0 + MEMWIN2_BASE) | BIR(0) |
 		     WINDOW(ilog2(MEMWIN2_APERTURE) - 10));
+}
+
+static void setup_memwin_rdma(struct adapter *adap)
+{
 	if (adap->vres.ocq.size) {
 		unsigned int start, sz_kb;
 
@@ -3155,6 +3250,488 @@ static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c)
 
 /*
  * Phase 0 of initialization: contact FW, obtain config, perform basic init.
+ *
+ * If the firmware we're dealing with has Configuration File support, then
+ * we use that to perform all configuration
+ */
+
+/*
+ * Tweak configuration based on module parameters, etc.  Most of these have
+ * defaults assigned to them by Firmware Configuration Files (if we're using
+ * them) but need to be explicitly set if we're using hard-coded
+ * initialization.  But even in the case of using Firmware Configuration
+ * Files, we'd like to expose the ability to change these via module
+ * parameters so these are essentially common tweaks/settings for
+ * Configuration Files and hard-coded initialization ...
+ */
+static int adap_init0_tweaks(struct adapter *adapter)
+{
+	/*
+	 * Fix up various Host-Dependent Parameters like Page Size, Cache
+	 * Line Size, etc.  The firmware default is for a 4KB Page Size and
+	 * 64B Cache Line Size ...
+	 */
+	t4_fixup_host_params(adapter, PAGE_SIZE, L1_CACHE_BYTES);
+
+	/*
+	 * Process module parameters which affect early initialization.
+	 */
+	if (rx_dma_offset != 2 && rx_dma_offset != 0) {
+		dev_err(&adapter->pdev->dev,
+			"Ignoring illegal rx_dma_offset=%d, using 2\n",
+			rx_dma_offset);
+		rx_dma_offset = 2;
+	}
+	t4_set_reg_field(adapter, SGE_CONTROL,
+			 PKTSHIFT_MASK,
+			 PKTSHIFT(rx_dma_offset));
+
+	/*
+	 * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux
+	 * adds the pseudo header itself.
+	 */
+	t4_tp_wr_bits_indirect(adapter, TP_INGRESS_CONFIG,
+			       CSUM_HAS_PSEUDO_HDR, 0);
+
+	return 0;
+}
+
+/*
+ * Attempt to initialize the adapter via a Firmware Configuration File.
+ */
+static int adap_init0_config(struct adapter *adapter, int reset)
+{
+	struct fw_caps_config_cmd caps_cmd;
+	const struct firmware *cf;
+	unsigned long mtype = 0, maddr = 0;
+	u32 finiver, finicsum, cfcsum;
+	int ret, using_flash;
+
+	/*
+	 * Reset device if necessary.
+	 */
+	if (reset) {
+		ret = t4_fw_reset(adapter, adapter->mbox,
+				  PIORSTMODE | PIORST);
+		if (ret < 0)
+			goto bye;
+	}
+
+	/*
+	 * If we have a T4 configuration file under /lib/firmware/cxgb4/,
+	 * then use that.  Otherwise, use the configuration file stored
+	 * in the adapter flash ...
+	 */
+	ret = request_firmware(&cf, FW_CFNAME, adapter->pdev_dev);
+	if (ret < 0) {
+		using_flash = 1;
+		mtype = FW_MEMTYPE_CF_FLASH;
+		maddr = t4_flash_cfg_addr(adapter);
+	} else {
+		u32 params[7], val[7];
+
+		using_flash = 0;
+		if (cf->size >= FLASH_CFG_MAX_SIZE)
+			ret = -ENOMEM;
+		else {
+			params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+			     FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF));
+			ret = t4_query_params(adapter, adapter->mbox,
+					      adapter->fn, 0, 1, params, val);
+			if (ret == 0) {
+				/*
+				 * For t4_memory_write() below addresses and
+				 * sizes have to be in terms of multiples of 4
+				 * bytes.  So, if the Configuration File isn't
+				 * a multiple of 4 bytes in length we'll have
+				 * to write that out separately since we can't
+				 * guarantee that the bytes following the
+				 * residual byte in the buffer returned by
+				 * request_firmware() are zeroed out ...
+				 */
+				size_t resid = cf->size & 0x3;
+				size_t size = cf->size & ~0x3;
+				__be32 *data = (__be32 *)cf->data;
+
+				mtype = FW_PARAMS_PARAM_Y_GET(val[0]);
+				maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16;
+
+				ret = t4_memory_write(adapter, mtype, maddr,
+						      size, data);
+				if (ret == 0 && resid != 0) {
+					union {
+						__be32 word;
+						char buf[4];
+					} last;
+					int i;
+
+					last.word = data[size >> 2];
+					for (i = resid; i < 4; i++)
+						last.buf[i] = 0;
+					ret = t4_memory_write(adapter, mtype,
+							      maddr + size,
+							      4, &last.word);
+				}
+			}
+		}
+
+		release_firmware(cf);
+		if (ret)
+			goto bye;
+	}
+
+	/*
+	 * Issue a Capability Configuration command to the firmware to get it
+	 * to parse the Configuration File.  We don't use t4_fw_config_file()
+	 * because we want the ability to modify various features after we've
+	 * processed the configuration file ...
+	 */
+	memset(&caps_cmd, 0, sizeof(caps_cmd));
+	caps_cmd.op_to_write =
+		htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+		      FW_CMD_REQUEST |
+		      FW_CMD_READ);
+	caps_cmd.retval_len16 =
+		htonl(FW_CAPS_CONFIG_CMD_CFVALID |
+		      FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
+		      FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) |
+		      FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+			 &caps_cmd);
+	if (ret < 0)
+		goto bye;
+
+	finiver = ntohl(caps_cmd.finiver);
+	finicsum = ntohl(caps_cmd.finicsum);
+	cfcsum = ntohl(caps_cmd.cfcsum);
+	if (finicsum != cfcsum)
+		dev_warn(adapter->pdev_dev, "Configuration File checksum "\
+			 "mismatch: [fini] csum=%#x, computed csum=%#x\n",
+			 finicsum, cfcsum);
+
+	/*
+	 * If we're a pure NIC driver then disable all offloading facilities.
+	 * This will allow the firmware to optimize aspects of the hardware
+	 * configuration which will result in improved performance.
+	 */
+	caps_cmd.ofldcaps = 0;
+	caps_cmd.iscsicaps = 0;
+	caps_cmd.rdmacaps = 0;
+	caps_cmd.fcoecaps = 0;
+
+	/*
+	 * And now tell the firmware to use the configuration we just loaded.
+	 */
+	caps_cmd.op_to_write =
+		htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+		      FW_CMD_REQUEST |
+		      FW_CMD_WRITE);
+	caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+			 NULL);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Tweak configuration based on system architecture, module
+	 * parameters, etc.
+	 */
+	ret = adap_init0_tweaks(adapter);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * And finally tell the firmware to initialize itself using the
+	 * parameters from the Configuration File.
+	 */
+	ret = t4_fw_initialize(adapter, adapter->mbox);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Return successfully and note that we're operating with parameters
+	 * not supplied by the driver, rather than from hard-wired
+	 * initialization constants burried in the driver.
+	 */
+	adapter->flags |= USING_SOFT_PARAMS;
+	dev_info(adapter->pdev_dev, "Successfully configured using Firmware "\
+		 "Configuration File %s, version %#x, computed checksum %#x\n",
+		 (using_flash
+		  ? "in device FLASH"
+		  : "/lib/firmware/" FW_CFNAME),
+		 finiver, cfcsum);
+	return 0;
+
+	/*
+	 * Something bad happened.  Return the error ...  (If the "error"
+	 * is that there's no Configuration File on the adapter we don't
+	 * want to issue a warning since this is fairly common.)
+	 */
+bye:
+	if (ret != -ENOENT)
+		dev_warn(adapter->pdev_dev, "Configuration file error %d\n",
+			 -ret);
+	return ret;
+}
+
+/*
+ * Attempt to initialize the adapter via hard-coded, driver supplied
+ * parameters ...
+ */
+static int adap_init0_no_config(struct adapter *adapter, int reset)
+{
+	struct sge *s = &adapter->sge;
+	struct fw_caps_config_cmd caps_cmd;
+	u32 v;
+	int i, ret;
+
+	/*
+	 * Reset device if necessary
+	 */
+	if (reset) {
+		ret = t4_fw_reset(adapter, adapter->mbox,
+				  PIORSTMODE | PIORST);
+		if (ret < 0)
+			goto bye;
+	}
+
+	/*
+	 * Get device capabilities and select which we'll be using.
+	 */
+	memset(&caps_cmd, 0, sizeof(caps_cmd));
+	caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+				     FW_CMD_REQUEST | FW_CMD_READ);
+	caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+			 &caps_cmd);
+	if (ret < 0)
+		goto bye;
+
+#ifndef CONFIG_CHELSIO_T4_OFFLOAD
+	/*
+	 * If we're a pure NIC driver then disable all offloading facilities.
+	 * This will allow the firmware to optimize aspects of the hardware
+	 * configuration which will result in improved performance.
+	 */
+	caps_cmd.ofldcaps = 0;
+	caps_cmd.iscsicaps = 0;
+	caps_cmd.rdmacaps = 0;
+	caps_cmd.fcoecaps = 0;
+#endif
+
+	if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) {
+		if (!vf_acls)
+			caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM);
+		else
+			caps_cmd.niccaps = htons(FW_CAPS_CONFIG_NIC_VM);
+	} else if (vf_acls) {
+		dev_err(adapter->pdev_dev, "virtualization ACLs not supported");
+		goto bye;
+	}
+	caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+			      FW_CMD_REQUEST | FW_CMD_WRITE);
+	ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+			 NULL);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Tweak configuration based on system architecture, module
+	 * parameters, etc.
+	 */
+	ret = adap_init0_tweaks(adapter);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Select RSS Global Mode we want to use.  We use "Basic Virtual"
+	 * mode which maps each Virtual Interface to its own section of
+	 * the RSS Table and we turn on all map and hash enables ...
+	 */
+	adapter->flags |= RSS_TNLALLLOOKUP;
+	ret = t4_config_glbl_rss(adapter, adapter->mbox,
+				 FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL,
+				 FW_RSS_GLB_CONFIG_CMD_TNLMAPEN |
+				 FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ |
+				 ((adapter->flags & RSS_TNLALLLOOKUP) ?
+					FW_RSS_GLB_CONFIG_CMD_TNLALLLKP : 0));
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Set up our own fundamental resource provisioning ...
+	 */
+	ret = t4_cfg_pfvf(adapter, adapter->mbox, adapter->fn, 0,
+			  PFRES_NEQ, PFRES_NETHCTRL,
+			  PFRES_NIQFLINT, PFRES_NIQ,
+			  PFRES_TC, PFRES_NVI,
+			  FW_PFVF_CMD_CMASK_MASK,
+			  pfvfres_pmask(adapter, adapter->fn, 0),
+			  PFRES_NEXACTF,
+			  PFRES_R_CAPS, PFRES_WX_CAPS);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Perform low level SGE initialization.  We need to do this before we
+	 * send the firmware the INITIALIZE command because that will cause
+	 * any other PF Drivers which are waiting for the Master
+	 * Initialization to proceed forward.
+	 */
+	for (i = 0; i < SGE_NTIMERS - 1; i++)
+		s->timer_val[i] = min(intr_holdoff[i], MAX_SGE_TIMERVAL);
+	s->timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL;
+	s->counter_val[0] = 1;
+	for (i = 1; i < SGE_NCOUNTERS; i++)
+		s->counter_val[i] = min(intr_cnt[i - 1],
+					THRESHOLD_0_GET(THRESHOLD_0_MASK));
+	t4_sge_init(adapter);
+
+#ifdef CONFIG_PCI_IOV
+	/*
+	 * Provision resource limits for Virtual Functions.  We currently
+	 * grant them all the same static resource limits except for the Port
+	 * Access Rights Mask which we're assigning based on the PF.  All of
+	 * the static provisioning stuff for both the PF and VF really needs
+	 * to be managed in a persistent manner for each device which the
+	 * firmware controls.
+	 */
+	{
+		int pf, vf;
+
+		for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) {
+			if (num_vf[pf] <= 0)
+				continue;
+
+			/* VF numbering starts at 1! */
+			for (vf = 1; vf <= num_vf[pf]; vf++) {
+				ret = t4_cfg_pfvf(adapter, adapter->mbox,
+						  pf, vf,
+						  VFRES_NEQ, VFRES_NETHCTRL,
+						  VFRES_NIQFLINT, VFRES_NIQ,
+						  VFRES_TC, VFRES_NVI,
+						  FW_PFVF_CMD_CMASK_GET(
+						  FW_PFVF_CMD_CMASK_MASK),
+						  pfvfres_pmask(
+						  adapter, pf, vf),
+						  VFRES_NEXACTF,
+						  VFRES_R_CAPS, VFRES_WX_CAPS);
+				if (ret < 0)
+					dev_warn(adapter->pdev_dev,
+						 "failed to "\
+						 "provision pf/vf=%d/%d; "
+						 "err=%d\n", pf, vf, ret);
+			}
+		}
+	}
+#endif
+
+	/*
+	 * Set up the default filter mode.  Later we'll want to implement this
+	 * via a firmware command, etc. ...  This needs to be done before the
+	 * firmare initialization command ...  If the selected set of fields
+	 * isn't equal to the default value, we'll need to make sure that the
+	 * field selections will fit in the 36-bit budget.
+	 */
+	if (tp_vlan_pri_map != TP_VLAN_PRI_MAP_DEFAULT) {
+		int i, bits = 0;
+
+		for (i = TP_VLAN_PRI_MAP_FIRST; i <= TP_VLAN_PRI_MAP_LAST; i++)
+			switch (tp_vlan_pri_map & (1 << i)) {
+			case 0:
+				/* compressed filter field not enabled */
+				break;
+			case FCOE_MASK:
+				bits +=  1;
+				break;
+			case PORT_MASK:
+				bits +=  3;
+				break;
+			case VNIC_ID_MASK:
+				bits += 17;
+				break;
+			case VLAN_MASK:
+				bits += 17;
+				break;
+			case TOS_MASK:
+				bits +=  8;
+				break;
+			case PROTOCOL_MASK:
+				bits +=  8;
+				break;
+			case ETHERTYPE_MASK:
+				bits += 16;
+				break;
+			case MACMATCH_MASK:
+				bits +=  9;
+				break;
+			case MPSHITTYPE_MASK:
+				bits +=  3;
+				break;
+			case FRAGMENTATION_MASK:
+				bits +=  1;
+				break;
+			}
+
+		if (bits > 36) {
+			dev_err(adapter->pdev_dev,
+				"tp_vlan_pri_map=%#x needs %d bits > 36;"\
+				" using %#x\n", tp_vlan_pri_map, bits,
+				TP_VLAN_PRI_MAP_DEFAULT);
+			tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT;
+		}
+	}
+	v = tp_vlan_pri_map;
+	t4_write_indirect(adapter, TP_PIO_ADDR, TP_PIO_DATA,
+			  &v, 1, TP_VLAN_PRI_MAP);
+
+	/*
+	 * We need Five Tuple Lookup mode to be set in TP_GLOBAL_CONFIG order
+	 * to support any of the compressed filter fields above.  Newer
+	 * versions of the firmware do this automatically but it doesn't hurt
+	 * to set it here.  Meanwhile, we do _not_ need to set Lookup Every
+	 * Packet in TP_INGRESS_CONFIG to support matching non-TCP packets
+	 * since the firmware automatically turns this on and off when we have
+	 * a non-zero number of filters active (since it does have a
+	 * performance impact).
+	 */
+	if (tp_vlan_pri_map)
+		t4_set_reg_field(adapter, TP_GLOBAL_CONFIG,
+				 FIVETUPLELOOKUP_MASK,
+				 FIVETUPLELOOKUP_MASK);
+
+	/*
+	 * Tweak some settings.
+	 */
+	t4_write_reg(adapter, TP_SHIFT_CNT, SYNSHIFTMAX(6) |
+		     RXTSHIFTMAXR1(4) | RXTSHIFTMAXR2(15) |
+		     PERSHIFTBACKOFFMAX(8) | PERSHIFTMAX(8) |
+		     KEEPALIVEMAXR1(4) | KEEPALIVEMAXR2(9));
+
+	/*
+	 * Get basic stuff going by issuing the Firmware Initialize command.
+	 * Note that this _must_ be after all PFVF commands ...
+	 */
+	ret = t4_fw_initialize(adapter, adapter->mbox);
+	if (ret < 0)
+		goto bye;
+
+	/*
+	 * Return successfully!
+	 */
+	dev_info(adapter->pdev_dev, "Successfully configured using built-in "\
+		 "driver parameters\n");
+	return 0;
+
+	/*
+	 * Something bad happened.  Return the error ...
+	 */
+bye:
+	return ret;
+}
+
+/*
+ * Phase 0 of initialization: contact FW, obtain config, perform basic init.
  */
 static int adap_init0(struct adapter *adap)
 {
@@ -3162,72 +3739,216 @@ static int adap_init0(struct adapter *adap)
 	u32 v, port_vec;
 	enum dev_state state;
 	u32 params[7], val[7];
-	struct fw_caps_config_cmd c;
-
-	ret = t4_check_fw_version(adap);
-	if (ret == -EINVAL || ret > 0) {
-		if (upgrade_fw(adap) >= 0)             /* recache FW version */
-			ret = t4_check_fw_version(adap);
-	}
-	if (ret < 0)
-		return ret;
+	int reset = 1, j;
 
-	/* contact FW, request master */
-	ret = t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, &state);
+	/*
+	 * Contact FW, advertising Master capability (and potentially forcing
+	 * ourselves as the Master PF if our module parameter force_init is
+	 * set).
+	 */
+	ret = t4_fw_hello(adap, adap->mbox, adap->fn,
+			  force_init ? MASTER_MUST : MASTER_MAY,
+			  &state);
 	if (ret < 0) {
 		dev_err(adap->pdev_dev, "could not connect to FW, error %d\n",
 			ret);
 		return ret;
 	}
+	if (ret == adap->mbox)
+		adap->flags |= MASTER_PF;
+	if (force_init && state == DEV_STATE_INIT)
+		state = DEV_STATE_UNINIT;
 
-	/* reset device */
-	ret = t4_fw_reset(adap, adap->fn, PIORSTMODE | PIORST);
-	if (ret < 0)
-		goto bye;
-
-	for (v = 0; v < SGE_NTIMERS - 1; v++)
-		adap->sge.timer_val[v] = min(intr_holdoff[v], MAX_SGE_TIMERVAL);
-	adap->sge.timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL;
-	adap->sge.counter_val[0] = 1;
-	for (v = 1; v < SGE_NCOUNTERS; v++)
-		adap->sge.counter_val[v] = min(intr_cnt[v - 1],
-					       THRESHOLD_3_MASK);
-#define FW_PARAM_DEV(param) \
-	(FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
-	 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
+	/*
+	 * If we're the Master PF Driver and the device is uninitialized,
+	 * then let's consider upgrading the firmware ...  (We always want
+	 * to check the firmware version number in order to A. get it for
+	 * later reporting and B. to warn if the currently loaded firmware
+	 * is excessively mismatched relative to the driver.)
+	 */
+	ret = t4_check_fw_version(adap);
+	if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) {
+		if (ret == -EINVAL || ret > 0) {
+			if (upgrade_fw(adap) >= 0) {
+				/*
+				 * Note that the chip was reset as part of the
+				 * firmware upgrade so we don't reset it again
+				 * below and grab the new firmware version.
+				 */
+				reset = 0;
+				ret = t4_check_fw_version(adap);
+			}
+		}
+		if (ret < 0)
+			return ret;
+	}
 
-	params[0] = FW_PARAM_DEV(CCLK);
-	ret = t4_query_params(adap, adap->fn, adap->fn, 0, 1, params, val);
+	/*
+	 * Grab VPD parameters.  This should be done after we establish a
+	 * connection to the firmware since some of the VPD parameters
+	 * (notably the Core Clock frequency) are retrieved via requests to
+	 * the firmware.  On the other hand, we need these fairly early on
+	 * so we do this right after getting ahold of the firmware.
+	 */
+	ret = get_vpd_params(adap, &adap->params.vpd);
 	if (ret < 0)
 		goto bye;
-	adap->params.vpd.cclk = val[0];
 
-	ret = adap_init1(adap, &c);
+	/*
+	 * Find out what ports are available to us.  Note that we need to do
+	 * this before calling adap_init0_no_config() since it needs nports
+	 * and portvec ...
+	 */
+	v =
+	    FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+	    FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC);
+	ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, &v, &port_vec);
 	if (ret < 0)
 		goto bye;
 
+	adap->params.nports = hweight32(port_vec);
+	adap->params.portvec = port_vec;
+
+	/*
+	 * If the firmware is initialized already (and we're not forcing a
+	 * master initialization), note that we're living with existing
+	 * adapter parameters.  Otherwise, it's time to try initializing the
+	 * adapter ...
+	 */
+	if (state == DEV_STATE_INIT) {
+		dev_info(adap->pdev_dev, "Coming up as %s: "\
+			 "Adapter already initialized\n",
+			 adap->flags & MASTER_PF ? "MASTER" : "SLAVE");
+		adap->flags |= USING_SOFT_PARAMS;
+	} else {
+		dev_info(adap->pdev_dev, "Coming up as MASTER: "\
+			 "Initializing adapter\n");
+
+		/*
+		 * If the firmware doesn't support Configuration
+		 * Files warn user and exit,
+		 */
+		if (ret < 0)
+			dev_warn(adap->pdev_dev, "Firmware doesn't support "
+				 "configuration file.\n");
+		if (force_old_init)
+			ret = adap_init0_no_config(adap, reset);
+		else {
+			/*
+			 * Find out whether we're dealing with a version of
+			 * the firmware which has configuration file support.
+			 */
+			params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+				     FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF));
+			ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1,
+					      params, val);
+
+			/*
+			 * If the firmware doesn't support Configuration
+			 * Files, use the old Driver-based, hard-wired
+			 * initialization.  Otherwise, try using the
+			 * Configuration File support and fall back to the
+			 * Driver-based initialization if there's no
+			 * Configuration File found.
+			 */
+			if (ret < 0)
+				ret = adap_init0_no_config(adap, reset);
+			else {
+				/*
+				 * The firmware provides us with a memory
+				 * buffer where we can load a Configuration
+				 * File from the host if we want to override
+				 * the Configuration File in flash.
+				 */
+
+				ret = adap_init0_config(adap, reset);
+				if (ret == -ENOENT) {
+					dev_info(adap->pdev_dev,
+					    "No Configuration File present "
+					    "on adapter.  Using hard-wired "
+					    "configuration parameters.\n");
+					ret = adap_init0_no_config(adap, reset);
+				}
+			}
+		}
+		if (ret < 0) {
+			dev_err(adap->pdev_dev,
+				"could not initialize adapter, error %d\n",
+				-ret);
+			goto bye;
+		}
+	}
+
+	/*
+	 * If we're living with non-hard-coded parameters (either from a
+	 * Firmware Configuration File or values programmed by a different PF
+	 * Driver), give the SGE code a chance to pull in anything that it
+	 * needs ...  Note that this must be called after we retrieve our VPD
+	 * parameters in order to know how to convert core ticks to seconds.
+	 */
+	if (adap->flags & USING_SOFT_PARAMS) {
+		ret = t4_sge_init(adap);
+		if (ret < 0)
+			goto bye;
+	}
+
+	/*
+	 * Grab some of our basic fundamental operating parameters.
+	 */
+#define FW_PARAM_DEV(param) \
+	(FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
+	FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
+
 #define FW_PARAM_PFVF(param) \
-	(FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
-	 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param) | \
-	 FW_PARAMS_PARAM_Y(adap->fn))
+	FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
+	FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)|  \
+	FW_PARAMS_PARAM_Y(0) | \
+	FW_PARAMS_PARAM_Z(0)
 
-	params[0] = FW_PARAM_DEV(PORTVEC);
+	params[0] = FW_PARAM_PFVF(EQ_START);
 	params[1] = FW_PARAM_PFVF(L2T_START);
 	params[2] = FW_PARAM_PFVF(L2T_END);
 	params[3] = FW_PARAM_PFVF(FILTER_START);
 	params[4] = FW_PARAM_PFVF(FILTER_END);
 	params[5] = FW_PARAM_PFVF(IQFLINT_START);
-	params[6] = FW_PARAM_PFVF(EQ_START);
-	ret = t4_query_params(adap, adap->fn, adap->fn, 0, 7, params, val);
+	ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, params, val);
 	if (ret < 0)
 		goto bye;
-	port_vec = val[0];
+	adap->sge.egr_start = val[0];
+	adap->l2t_start = val[1];
+	adap->l2t_end = val[2];
 	adap->tids.ftid_base = val[3];
 	adap->tids.nftids = val[4] - val[3] + 1;
 	adap->sge.ingr_start = val[5];
-	adap->sge.egr_start = val[6];
 
-	if (c.ofldcaps) {
+	/* query params related to active filter region */
+	params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START);
+	params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END);
+	ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val);
+	/* If Active filter size is set we enable establishing
+	 * offload connection through firmware work request
+	 */
+	if ((val[0] != val[1]) && (ret >= 0)) {
+		adap->flags |= FW_OFLD_CONN;
+		adap->tids.aftid_base = val[0];
+		adap->tids.aftid_end = val[1];
+	}
+
+#ifdef CONFIG_CHELSIO_T4_OFFLOAD
+	/*
+	 * Get device capabilities so we can determine what resources we need
+	 * to manage.
+	 */
+	memset(&caps_cmd, 0, sizeof(caps_cmd));
+	caps_cmd.op_to_write = htonl(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+				     FW_CMD_REQUEST | FW_CMD_READ);
+	caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd),
+			 &caps_cmd);
+	if (ret < 0)
+		goto bye;
+
+	if (caps_cmd.ofldcaps) {
 		/* query offload-related parameters */
 		params[0] = FW_PARAM_DEV(NTID);
 		params[1] = FW_PARAM_PFVF(SERVER_START);
@@ -3235,28 +3956,55 @@ static int adap_init0(struct adapter *adap)
 		params[3] = FW_PARAM_PFVF(TDDP_START);
 		params[4] = FW_PARAM_PFVF(TDDP_END);
 		params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ);
-		ret = t4_query_params(adap, adap->fn, adap->fn, 0, 6, params,
-				      val);
+		ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6,
+				      params, val);
 		if (ret < 0)
 			goto bye;
 		adap->tids.ntids = val[0];
 		adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS);
 		adap->tids.stid_base = val[1];
 		adap->tids.nstids = val[2] - val[1] + 1;
+		/*
+		 * Setup server filter region. Divide the availble filter
+		 * region into two parts. Regular filters get 1/3rd and server
+		 * filters get 2/3rd part. This is only enabled if workarond
+		 * path is enabled.
+		 * 1. For regular filters.
+		 * 2. Server filter: This are special filters which are used
+		 * to redirect SYN packets to offload queue.
+		 */
+		if (adap->flags & FW_OFLD_CONN && !is_bypass(adap)) {
+			adap->tids.sftid_base = adap->tids.ftid_base +
+					DIV_ROUND_UP(adap->tids.nftids, 3);
+			adap->tids.nsftids = adap->tids.nftids -
+					 DIV_ROUND_UP(adap->tids.nftids, 3);
+			adap->tids.nftids = adap->tids.sftid_base -
+						adap->tids.ftid_base;
+		}
 		adap->vres.ddp.start = val[3];
 		adap->vres.ddp.size = val[4] - val[3] + 1;
 		adap->params.ofldq_wr_cred = val[5];
+
+		params[0] = FW_PARAM_PFVF(ETHOFLD_START);
+		params[1] = FW_PARAM_PFVF(ETHOFLD_END);
+		ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2,
+				      params, val);
+		if ((val[0] != val[1]) && (ret >= 0)) {
+			adap->tids.uotid_base = val[0];
+			adap->tids.nuotids = val[1] - val[0] + 1;
+		}
+
 		adap->params.offload = 1;
 	}
-	if (c.rdmacaps) {
+	if (caps_cmd.rdmacaps) {
 		params[0] = FW_PARAM_PFVF(STAG_START);
 		params[1] = FW_PARAM_PFVF(STAG_END);
 		params[2] = FW_PARAM_PFVF(RQ_START);
 		params[3] = FW_PARAM_PFVF(RQ_END);
 		params[4] = FW_PARAM_PFVF(PBL_START);
 		params[5] = FW_PARAM_PFVF(PBL_END);
-		ret = t4_query_params(adap, adap->fn, adap->fn, 0, 6, params,
-				      val);
+		ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6,
+				      params, val);
 		if (ret < 0)
 			goto bye;
 		adap->vres.stag.start = val[0];
@@ -3272,8 +4020,7 @@ static int adap_init0(struct adapter *adap)
 		params[3] = FW_PARAM_PFVF(CQ_END);
 		params[4] = FW_PARAM_PFVF(OCQ_START);
 		params[5] = FW_PARAM_PFVF(OCQ_END);
-		ret = t4_query_params(adap, adap->fn, adap->fn, 0, 6, params,
-				      val);
+		ret = t4_query_params(adap, 0, 0, 0, 6, params, val);
 		if (ret < 0)
 			goto bye;
 		adap->vres.qp.start = val[0];
@@ -3283,11 +4030,11 @@ static int adap_init0(struct adapter *adap)
 		adap->vres.ocq.start = val[4];
 		adap->vres.ocq.size = val[5] - val[4] + 1;
 	}
-	if (c.iscsicaps) {
+	if (caps_cmd.iscsicaps) {
 		params[0] = FW_PARAM_PFVF(ISCSI_START);
 		params[1] = FW_PARAM_PFVF(ISCSI_END);
-		ret = t4_query_params(adap, adap->fn, adap->fn, 0, 2, params,
-				      val);
+		ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2,
+				      params, val);
 		if (ret < 0)
 			goto bye;
 		adap->vres.iscsi.start = val[0];
@@ -3295,63 +4042,33 @@ static int adap_init0(struct adapter *adap)
 	}
 #undef FW_PARAM_PFVF
 #undef FW_PARAM_DEV
+#endif /* CONFIG_CHELSIO_T4_OFFLOAD */
 
-	adap->params.nports = hweight32(port_vec);
-	adap->params.portvec = port_vec;
-	adap->flags |= FW_OK;
-
-	/* These are finalized by FW initialization, load their values now */
+	/*
+	 * These are finalized by FW initialization, load their values now.
+	 */
 	v = t4_read_reg(adap, TP_TIMER_RESOLUTION);
 	adap->params.tp.tre = TIMERRESOLUTION_GET(v);
+	adap->params.tp.dack_re = DELAYEDACKRESOLUTION_GET(v);
 	t4_read_mtu_tbl(adap, adap->params.mtus, NULL);
 	t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd,
 		     adap->params.b_wnd);
 
-#ifdef CONFIG_PCI_IOV
-	/*
-	 * Provision resource limits for Virtual Functions.  We currently
-	 * grant them all the same static resource limits except for the Port
-	 * Access Rights Mask which we're assigning based on the PF.  All of
-	 * the static provisioning stuff for both the PF and VF really needs
-	 * to be managed in a persistent manner for each device which the
-	 * firmware controls.
-	 */
-	{
-		int pf, vf;
-
-		for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) {
-			if (num_vf[pf] <= 0)
-				continue;
+	/* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */
+	for (j = 0; j < NCHAN; j++)
+		adap->params.tp.tx_modq[j] = j;
 
-			/* VF numbering starts at 1! */
-			for (vf = 1; vf <= num_vf[pf]; vf++) {
-				ret = t4_cfg_pfvf(adap, adap->fn, pf, vf,
-						  VFRES_NEQ, VFRES_NETHCTRL,
-						  VFRES_NIQFLINT, VFRES_NIQ,
-						  VFRES_TC, VFRES_NVI,
-						  FW_PFVF_CMD_CMASK_MASK,
-						  pfvfres_pmask(adap, pf, vf),
-						  VFRES_NEXACTF,
-						  VFRES_R_CAPS, VFRES_WX_CAPS);
-				if (ret < 0)
-					dev_warn(adap->pdev_dev, "failed to "
-						 "provision pf/vf=%d/%d; "
-						 "err=%d\n", pf, vf, ret);
-			}
-		}
-	}
-#endif
-
-	setup_memwin(adap);
+	adap->flags |= FW_OK;
 	return 0;
 
 	/*
-	 * If a command timed out or failed with EIO FW does not operate within
-	 * its spec or something catastrophic happened to HW/FW, stop issuing
-	 * commands.
+	 * Something bad happened.  If a command timed out or failed with EIO
+	 * FW does not operate within its spec or something catastrophic
+	 * happened to HW/FW, stop issuing commands.
 	 */
-bye:	if (ret != -ETIMEDOUT && ret != -EIO)
-		t4_fw_bye(adap, adap->fn);
+bye:
+	if (ret != -ETIMEDOUT && ret != -EIO)
+		t4_fw_bye(adap, adap->mbox);
 	return ret;
 }
 
@@ -3453,7 +4170,7 @@ static void eeh_resume(struct pci_dev *pdev)
 	rtnl_unlock();
 }
 
-static struct pci_error_handlers cxgb4_eeh = {
+static const struct pci_error_handlers cxgb4_eeh = {
 	.error_detected = eeh_err_detected,
 	.slot_reset     = eeh_slot_reset,
 	.resume         = eeh_resume,
@@ -3694,15 +4411,7 @@ static void __devinit print_port_info(const struct net_device *dev)
 
 static void __devinit enable_pcie_relaxed_ordering(struct pci_dev *dev)
 {
-	u16 v;
-	int pos;
-
-	pos = pci_pcie_cap(dev);
-	if (pos > 0) {
-		pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &v);
-		v |= PCI_EXP_DEVCTL_RELAX_EN;
-		pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, v);
-	}
+	pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN);
 }
 
 /*
@@ -3814,7 +4523,9 @@ static int __devinit init_one(struct pci_dev *pdev,
 	err = t4_prep_adapter(adapter);
 	if (err)
 		goto out_unmap_bar;
+	setup_memwin(adapter);
 	err = adap_init0(adapter);
+	setup_memwin_rdma(adapter);
 	if (err)
 		goto out_unmap_bar;
 
@@ -3956,8 +4667,11 @@ static void __devexit remove_one(struct pci_dev *pdev)
 {
 	struct adapter *adapter = pci_get_drvdata(pdev);
 
+#ifdef CONFIG_PCI_IOV
 	pci_disable_sriov(pdev);
 
+#endif
+
 	if (adapter) {
 		int i;
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index d79980c5fc6..1b899fea1a9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -100,6 +100,8 @@ struct tid_info {
 
 	unsigned int nftids;
 	unsigned int ftid_base;
+	unsigned int aftid_base;
+	unsigned int aftid_end;
 
 	spinlock_t atid_lock ____cacheline_aligned_in_smp;
 	union aopen_entry *afree;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index d49933ed551..3ecc087d732 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -68,9 +68,6 @@
  */
 #define RX_PKT_SKB_LEN   512
 
-/* Ethernet header padding prepended to RX_PKTs */
-#define RX_PKT_PAD 2
-
 /*
  * Max number of Tx descriptors we clean up at a time.  Should be modest as
  * freeing skbs isn't cheap and it happens while holding locks.  We just need
@@ -137,13 +134,6 @@
  */
 #define MAX_CTRL_WR_LEN SGE_MAX_WR_LEN
 
-enum {
-	/* packet alignment in FL buffers */
-	FL_ALIGN = L1_CACHE_BYTES < 32 ? 32 : L1_CACHE_BYTES,
-	/* egress status entry size */
-	STAT_LEN = L1_CACHE_BYTES > 64 ? 128 : 64
-};
-
 struct tx_sw_desc {                /* SW state per Tx descriptor */
 	struct sk_buff *skb;
 	struct ulptx_sgl *sgl;
@@ -155,16 +145,57 @@ struct rx_sw_desc {                /* SW state per Rx descriptor */
 };
 
 /*
- * The low bits of rx_sw_desc.dma_addr have special meaning.
+ * Rx buffer sizes for "useskbs" Free List buffers (one ingress packet pe skb
+ * buffer).  We currently only support two sizes for 1500- and 9000-byte MTUs.
+ * We could easily support more but there doesn't seem to be much need for
+ * that ...
+ */
+#define FL_MTU_SMALL 1500
+#define FL_MTU_LARGE 9000
+
+static inline unsigned int fl_mtu_bufsize(struct adapter *adapter,
+					  unsigned int mtu)
+{
+	struct sge *s = &adapter->sge;
+
+	return ALIGN(s->pktshift + ETH_HLEN + VLAN_HLEN + mtu, s->fl_align);
+}
+
+#define FL_MTU_SMALL_BUFSIZE(adapter) fl_mtu_bufsize(adapter, FL_MTU_SMALL)
+#define FL_MTU_LARGE_BUFSIZE(adapter) fl_mtu_bufsize(adapter, FL_MTU_LARGE)
+
+/*
+ * Bits 0..3 of rx_sw_desc.dma_addr have special meaning.  The hardware uses
+ * these to specify the buffer size as an index into the SGE Free List Buffer
+ * Size register array.  We also use bit 4, when the buffer has been unmapped
+ * for DMA, but this is of course never sent to the hardware and is only used
+ * to prevent double unmappings.  All of the above requires that the Free List
+ * Buffers which we allocate have the bottom 5 bits free (0) -- i.e. are
+ * 32-byte or or a power of 2 greater in alignment.  Since the SGE's minimal
+ * Free List Buffer alignment is 32 bytes, this works out for us ...
  */
 enum {
-	RX_LARGE_BUF    = 1 << 0, /* buffer is larger than PAGE_SIZE */
-	RX_UNMAPPED_BUF = 1 << 1, /* buffer is not mapped */
+	RX_BUF_FLAGS     = 0x1f,   /* bottom five bits are special */
+	RX_BUF_SIZE      = 0x0f,   /* bottom three bits are for buf sizes */
+	RX_UNMAPPED_BUF  = 0x10,   /* buffer is not mapped */
+
+	/*
+	 * XXX We shouldn't depend on being able to use these indices.
+	 * XXX Especially when some other Master PF has initialized the
+	 * XXX adapter or we use the Firmware Configuration File.  We
+	 * XXX should really search through the Host Buffer Size register
+	 * XXX array for the appropriately sized buffer indices.
+	 */
+	RX_SMALL_PG_BUF  = 0x0,   /* small (PAGE_SIZE) page buffer */
+	RX_LARGE_PG_BUF  = 0x1,   /* buffer large (FL_PG_ORDER) page buffer */
+
+	RX_SMALL_MTU_BUF = 0x2,   /* small MTU buffer */
+	RX_LARGE_MTU_BUF = 0x3,   /* large MTU buffer */
 };
 
 static inline dma_addr_t get_buf_addr(const struct rx_sw_desc *d)
 {
-	return d->dma_addr & ~(dma_addr_t)(RX_LARGE_BUF | RX_UNMAPPED_BUF);
+	return d->dma_addr & ~(dma_addr_t)RX_BUF_FLAGS;
 }
 
 static inline bool is_buf_mapped(const struct rx_sw_desc *d)
@@ -392,14 +423,35 @@ static inline void reclaim_completed_tx(struct adapter *adap, struct sge_txq *q,
 	}
 }
 
-static inline int get_buf_size(const struct rx_sw_desc *d)
+static inline int get_buf_size(struct adapter *adapter,
+			       const struct rx_sw_desc *d)
 {
-#if FL_PG_ORDER > 0
-	return (d->dma_addr & RX_LARGE_BUF) ? (PAGE_SIZE << FL_PG_ORDER) :
-					      PAGE_SIZE;
-#else
-	return PAGE_SIZE;
-#endif
+	struct sge *s = &adapter->sge;
+	unsigned int rx_buf_size_idx = d->dma_addr & RX_BUF_SIZE;
+	int buf_size;
+
+	switch (rx_buf_size_idx) {
+	case RX_SMALL_PG_BUF:
+		buf_size = PAGE_SIZE;
+		break;
+
+	case RX_LARGE_PG_BUF:
+		buf_size = PAGE_SIZE << s->fl_pg_order;
+		break;
+
+	case RX_SMALL_MTU_BUF:
+		buf_size = FL_MTU_SMALL_BUFSIZE(adapter);
+		break;
+
+	case RX_LARGE_MTU_BUF:
+		buf_size = FL_MTU_LARGE_BUFSIZE(adapter);
+		break;
+
+	default:
+		BUG_ON(1);
+	}
+
+	return buf_size;
 }
 
 /**
@@ -418,7 +470,8 @@ static void free_rx_bufs(struct adapter *adap, struct sge_fl *q, int n)
 
 		if (is_buf_mapped(d))
 			dma_unmap_page(adap->pdev_dev, get_buf_addr(d),
-				       get_buf_size(d), PCI_DMA_FROMDEVICE);
+				       get_buf_size(adap, d),
+				       PCI_DMA_FROMDEVICE);
 		put_page(d->page);
 		d->page = NULL;
 		if (++q->cidx == q->size)
@@ -444,7 +497,7 @@ static void unmap_rx_buf(struct adapter *adap, struct sge_fl *q)
 
 	if (is_buf_mapped(d))
 		dma_unmap_page(adap->pdev_dev, get_buf_addr(d),
-			       get_buf_size(d), PCI_DMA_FROMDEVICE);
+			       get_buf_size(adap, d), PCI_DMA_FROMDEVICE);
 	d->page = NULL;
 	if (++q->cidx == q->size)
 		q->cidx = 0;
@@ -485,6 +538,7 @@ static inline void set_rx_sw_desc(struct rx_sw_desc *sd, struct page *pg,
 static unsigned int refill_fl(struct adapter *adap, struct sge_fl *q, int n,
 			      gfp_t gfp)
 {
+	struct sge *s = &adap->sge;
 	struct page *pg;
 	dma_addr_t mapping;
 	unsigned int cred = q->avail;
@@ -493,25 +547,27 @@ static unsigned int refill_fl(struct adapter *adap, struct sge_fl *q, int n,
 
 	gfp |= __GFP_NOWARN | __GFP_COLD;
 
-#if FL_PG_ORDER > 0
+	if (s->fl_pg_order == 0)
+		goto alloc_small_pages;
+
 	/*
 	 * Prefer large buffers
 	 */
 	while (n) {
-		pg = alloc_pages(gfp | __GFP_COMP, FL_PG_ORDER);
+		pg = alloc_pages(gfp | __GFP_COMP, s->fl_pg_order);
 		if (unlikely(!pg)) {
 			q->large_alloc_failed++;
 			break;       /* fall back to single pages */
 		}
 
 		mapping = dma_map_page(adap->pdev_dev, pg, 0,
-				       PAGE_SIZE << FL_PG_ORDER,
+				       PAGE_SIZE << s->fl_pg_order,
 				       PCI_DMA_FROMDEVICE);
 		if (unlikely(dma_mapping_error(adap->pdev_dev, mapping))) {
-			__free_pages(pg, FL_PG_ORDER);
+			__free_pages(pg, s->fl_pg_order);
 			goto out;   /* do not try small pages for this error */
 		}
-		mapping |= RX_LARGE_BUF;
+		mapping |= RX_LARGE_PG_BUF;
 		*d++ = cpu_to_be64(mapping);
 
 		set_rx_sw_desc(sd, pg, mapping);
@@ -525,8 +581,8 @@ static unsigned int refill_fl(struct adapter *adap, struct sge_fl *q, int n,
 		}
 		n--;
 	}
-#endif
 
+alloc_small_pages:
 	while (n--) {
 		pg = __skb_alloc_page(gfp, NULL);
 		if (unlikely(!pg)) {
@@ -769,8 +825,8 @@ static inline void ring_tx_db(struct adapter *adap, struct sge_txq *q, int n)
 	wmb();            /* write descriptors before telling HW */
 	spin_lock(&q->db_lock);
 	if (!q->db_disabled) {
-		t4_write_reg(adap, MYPF_REG(A_SGE_PF_KDOORBELL),
-			     V_QID(q->cntxt_id) | V_PIDX(n));
+		t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
+			     QID(q->cntxt_id) | PIDX(n));
 	}
 	q->db_pidx = q->pidx;
 	spin_unlock(&q->db_lock);
@@ -1519,6 +1575,8 @@ static noinline int handle_trace_pkt(struct adapter *adap,
 static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl,
 		   const struct cpl_rx_pkt *pkt)
 {
+	struct adapter *adapter = rxq->rspq.adap;
+	struct sge *s = &adapter->sge;
 	int ret;
 	struct sk_buff *skb;
 
@@ -1529,8 +1587,8 @@ static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl,
 		return;
 	}
 
-	copy_frags(skb, gl, RX_PKT_PAD);
-	skb->len = gl->tot_len - RX_PKT_PAD;
+	copy_frags(skb, gl, s->pktshift);
+	skb->len = gl->tot_len - s->pktshift;
 	skb->data_len = skb->len;
 	skb->truesize += skb->data_len;
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -1566,6 +1624,7 @@ int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
 	struct sk_buff *skb;
 	const struct cpl_rx_pkt *pkt;
 	struct sge_eth_rxq *rxq = container_of(q, struct sge_eth_rxq, rspq);
+	struct sge *s = &q->adap->sge;
 
 	if (unlikely(*(u8 *)rsp == CPL_TRACE_PKT))
 		return handle_trace_pkt(q->adap, si);
@@ -1585,7 +1644,7 @@ int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
 		return 0;
 	}
 
-	__skb_pull(skb, RX_PKT_PAD);      /* remove ethernet header padding */
+	__skb_pull(skb, s->pktshift);      /* remove ethernet header padding */
 	skb->protocol = eth_type_trans(skb, q->netdev);
 	skb_record_rx_queue(skb, q->idx);
 	if (skb->dev->features & NETIF_F_RXHASH)
@@ -1696,6 +1755,8 @@ static int process_responses(struct sge_rspq *q, int budget)
 	int budget_left = budget;
 	const struct rsp_ctrl *rc;
 	struct sge_eth_rxq *rxq = container_of(q, struct sge_eth_rxq, rspq);
+	struct adapter *adapter = q->adap;
+	struct sge *s = &adapter->sge;
 
 	while (likely(budget_left)) {
 		rc = (void *)q->cur_desc + (q->iqe_len - sizeof(*rc));
@@ -1722,7 +1783,7 @@ static int process_responses(struct sge_rspq *q, int budget)
 			/* gather packet fragments */
 			for (frags = 0, fp = si.frags; ; frags++, fp++) {
 				rsd = &rxq->fl.sdesc[rxq->fl.cidx];
-				bufsz = get_buf_size(rsd);
+				bufsz = get_buf_size(adapter, rsd);
 				fp->page = rsd->page;
 				fp->offset = q->offset;
 				fp->size = min(bufsz, len);
@@ -1747,7 +1808,7 @@ static int process_responses(struct sge_rspq *q, int budget)
 			si.nfrags = frags + 1;
 			ret = q->handler(q, q->cur_desc, &si);
 			if (likely(ret == 0))
-				q->offset += ALIGN(fp->size, FL_ALIGN);
+				q->offset += ALIGN(fp->size, s->fl_align);
 			else
 				restore_rx_bufs(&si, &rxq->fl, frags);
 		} else if (likely(rsp_type == RSP_TYPE_CPL)) {
@@ -1983,6 +2044,7 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
 {
 	int ret, flsz = 0;
 	struct fw_iq_cmd c;
+	struct sge *s = &adap->sge;
 	struct port_info *pi = netdev_priv(dev);
 
 	/* Size needs to be multiple of 16, including status entry. */
@@ -2015,11 +2077,11 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
 		fl->size = roundup(fl->size, 8);
 		fl->desc = alloc_ring(adap->pdev_dev, fl->size, sizeof(__be64),
 				      sizeof(struct rx_sw_desc), &fl->addr,
-				      &fl->sdesc, STAT_LEN, NUMA_NO_NODE);
+				      &fl->sdesc, s->stat_len, NUMA_NO_NODE);
 		if (!fl->desc)
 			goto fl_nomem;
 
-		flsz = fl->size / 8 + STAT_LEN / sizeof(struct tx_desc);
+		flsz = fl->size / 8 + s->stat_len / sizeof(struct tx_desc);
 		c.iqns_to_fl0congen = htonl(FW_IQ_CMD_FL0PACKEN |
 					    FW_IQ_CMD_FL0FETCHRO(1) |
 					    FW_IQ_CMD_FL0DATARO(1) |
@@ -2096,14 +2158,15 @@ int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
 {
 	int ret, nentries;
 	struct fw_eq_eth_cmd c;
+	struct sge *s = &adap->sge;
 	struct port_info *pi = netdev_priv(dev);
 
 	/* Add status entries */
-	nentries = txq->q.size + STAT_LEN / sizeof(struct tx_desc);
+	nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc);
 
 	txq->q.desc = alloc_ring(adap->pdev_dev, txq->q.size,
 			sizeof(struct tx_desc), sizeof(struct tx_sw_desc),
-			&txq->q.phys_addr, &txq->q.sdesc, STAT_LEN,
+			&txq->q.phys_addr, &txq->q.sdesc, s->stat_len,
 			netdev_queue_numa_node_read(netdevq));
 	if (!txq->q.desc)
 		return -ENOMEM;
@@ -2149,10 +2212,11 @@ int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
 {
 	int ret, nentries;
 	struct fw_eq_ctrl_cmd c;
+	struct sge *s = &adap->sge;
 	struct port_info *pi = netdev_priv(dev);
 
 	/* Add status entries */
-	nentries = txq->q.size + STAT_LEN / sizeof(struct tx_desc);
+	nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc);
 
 	txq->q.desc = alloc_ring(adap->pdev_dev, nentries,
 				 sizeof(struct tx_desc), 0, &txq->q.phys_addr,
@@ -2200,14 +2264,15 @@ int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
 {
 	int ret, nentries;
 	struct fw_eq_ofld_cmd c;
+	struct sge *s = &adap->sge;
 	struct port_info *pi = netdev_priv(dev);
 
 	/* Add status entries */
-	nentries = txq->q.size + STAT_LEN / sizeof(struct tx_desc);
+	nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc);
 
 	txq->q.desc = alloc_ring(adap->pdev_dev, txq->q.size,
 			sizeof(struct tx_desc), sizeof(struct tx_sw_desc),
-			&txq->q.phys_addr, &txq->q.sdesc, STAT_LEN,
+			&txq->q.phys_addr, &txq->q.sdesc, s->stat_len,
 			NUMA_NO_NODE);
 	if (!txq->q.desc)
 		return -ENOMEM;
@@ -2251,8 +2316,10 @@ int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
 
 static void free_txq(struct adapter *adap, struct sge_txq *q)
 {
+	struct sge *s = &adap->sge;
+
 	dma_free_coherent(adap->pdev_dev,
-			  q->size * sizeof(struct tx_desc) + STAT_LEN,
+			  q->size * sizeof(struct tx_desc) + s->stat_len,
 			  q->desc, q->phys_addr);
 	q->cntxt_id = 0;
 	q->sdesc = NULL;
@@ -2262,6 +2329,7 @@ static void free_txq(struct adapter *adap, struct sge_txq *q)
 static void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq,
 			 struct sge_fl *fl)
 {
+	struct sge *s = &adap->sge;
 	unsigned int fl_id = fl ? fl->cntxt_id : 0xffff;
 
 	adap->sge.ingr_map[rq->cntxt_id - adap->sge.ingr_start] = NULL;
@@ -2276,7 +2344,7 @@ static void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq,
 
 	if (fl) {
 		free_rx_bufs(adap, fl, fl->avail);
-		dma_free_coherent(adap->pdev_dev, fl->size * 8 + STAT_LEN,
+		dma_free_coherent(adap->pdev_dev, fl->size * 8 + s->stat_len,
 				  fl->desc, fl->addr);
 		kfree(fl->sdesc);
 		fl->sdesc = NULL;
@@ -2408,18 +2476,112 @@ void t4_sge_stop(struct adapter *adap)
  *	Performs SGE initialization needed every time after a chip reset.
  *	We do not initialize any of the queues here, instead the driver
  *	top-level must request them individually.
+ *
+ *	Called in two different modes:
+ *
+ *	 1. Perform actual hardware initialization and record hard-coded
+ *	    parameters which were used.  This gets used when we're the
+ *	    Master PF and the Firmware Configuration File support didn't
+ *	    work for some reason.
+ *
+ *	 2. We're not the Master PF or initialization was performed with
+ *	    a Firmware Configuration File.  In this case we need to grab
+ *	    any of the SGE operating parameters that we need to have in
+ *	    order to do our job and make sure we can live with them ...
  */
-void t4_sge_init(struct adapter *adap)
+
+static int t4_sge_init_soft(struct adapter *adap)
 {
-	unsigned int i, v;
 	struct sge *s = &adap->sge;
-	unsigned int fl_align_log = ilog2(FL_ALIGN);
+	u32 fl_small_pg, fl_large_pg, fl_small_mtu, fl_large_mtu;
+	u32 timer_value_0_and_1, timer_value_2_and_3, timer_value_4_and_5;
+	u32 ingress_rx_threshold;
 
-	t4_set_reg_field(adap, SGE_CONTROL, PKTSHIFT_MASK |
-			 INGPADBOUNDARY_MASK | EGRSTATUSPAGESIZE,
-			 INGPADBOUNDARY(fl_align_log - 5) | PKTSHIFT(2) |
-			 RXPKTCPLMODE |
-			 (STAT_LEN == 128 ? EGRSTATUSPAGESIZE : 0));
+	/*
+	 * Verify that CPL messages are going to the Ingress Queue for
+	 * process_responses() and that only packet data is going to the
+	 * Free Lists.
+	 */
+	if ((t4_read_reg(adap, SGE_CONTROL) & RXPKTCPLMODE_MASK) !=
+	    RXPKTCPLMODE(X_RXPKTCPLMODE_SPLIT)) {
+		dev_err(adap->pdev_dev, "bad SGE CPL MODE\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Validate the Host Buffer Register Array indices that we want to
+	 * use ...
+	 *
+	 * XXX Note that we should really read through the Host Buffer Size
+	 * XXX register array and find the indices of the Buffer Sizes which
+	 * XXX meet our needs!
+	 */
+	#define READ_FL_BUF(x) \
+		t4_read_reg(adap, SGE_FL_BUFFER_SIZE0+(x)*sizeof(u32))
+
+	fl_small_pg = READ_FL_BUF(RX_SMALL_PG_BUF);
+	fl_large_pg = READ_FL_BUF(RX_LARGE_PG_BUF);
+	fl_small_mtu = READ_FL_BUF(RX_SMALL_MTU_BUF);
+	fl_large_mtu = READ_FL_BUF(RX_LARGE_MTU_BUF);
+
+	#undef READ_FL_BUF
+
+	if (fl_small_pg != PAGE_SIZE ||
+	    (fl_large_pg != 0 && (fl_large_pg <= fl_small_pg ||
+				  (fl_large_pg & (fl_large_pg-1)) != 0))) {
+		dev_err(adap->pdev_dev, "bad SGE FL page buffer sizes [%d, %d]\n",
+			fl_small_pg, fl_large_pg);
+		return -EINVAL;
+	}
+	if (fl_large_pg)
+		s->fl_pg_order = ilog2(fl_large_pg) - PAGE_SHIFT;
+
+	if (fl_small_mtu < FL_MTU_SMALL_BUFSIZE(adap) ||
+	    fl_large_mtu < FL_MTU_LARGE_BUFSIZE(adap)) {
+		dev_err(adap->pdev_dev, "bad SGE FL MTU sizes [%d, %d]\n",
+			fl_small_mtu, fl_large_mtu);
+		return -EINVAL;
+	}
+
+	/*
+	 * Retrieve our RX interrupt holdoff timer values and counter
+	 * threshold values from the SGE parameters.
+	 */
+	timer_value_0_and_1 = t4_read_reg(adap, SGE_TIMER_VALUE_0_AND_1);
+	timer_value_2_and_3 = t4_read_reg(adap, SGE_TIMER_VALUE_2_AND_3);
+	timer_value_4_and_5 = t4_read_reg(adap, SGE_TIMER_VALUE_4_AND_5);
+	s->timer_val[0] = core_ticks_to_us(adap,
+		TIMERVALUE0_GET(timer_value_0_and_1));
+	s->timer_val[1] = core_ticks_to_us(adap,
+		TIMERVALUE1_GET(timer_value_0_and_1));
+	s->timer_val[2] = core_ticks_to_us(adap,
+		TIMERVALUE2_GET(timer_value_2_and_3));
+	s->timer_val[3] = core_ticks_to_us(adap,
+		TIMERVALUE3_GET(timer_value_2_and_3));
+	s->timer_val[4] = core_ticks_to_us(adap,
+		TIMERVALUE4_GET(timer_value_4_and_5));
+	s->timer_val[5] = core_ticks_to_us(adap,
+		TIMERVALUE5_GET(timer_value_4_and_5));
+
+	ingress_rx_threshold = t4_read_reg(adap, SGE_INGRESS_RX_THRESHOLD);
+	s->counter_val[0] = THRESHOLD_0_GET(ingress_rx_threshold);
+	s->counter_val[1] = THRESHOLD_1_GET(ingress_rx_threshold);
+	s->counter_val[2] = THRESHOLD_2_GET(ingress_rx_threshold);
+	s->counter_val[3] = THRESHOLD_3_GET(ingress_rx_threshold);
+
+	return 0;
+}
+
+static int t4_sge_init_hard(struct adapter *adap)
+{
+	struct sge *s = &adap->sge;
+
+	/*
+	 * Set up our basic SGE mode to deliver CPL messages to our Ingress
+	 * Queue and Packet Date to the Free List.
+	 */
+	t4_set_reg_field(adap, SGE_CONTROL, RXPKTCPLMODE_MASK,
+			 RXPKTCPLMODE_MASK);
 
 	/*
 	 * Set up to drop DOORBELL writes when the DOORBELL FIFO overflows
@@ -2433,13 +2595,24 @@ void t4_sge_init(struct adapter *adap)
 	t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_ENABLE_DROP,
 			F_ENABLE_DROP);
 
-	for (i = v = 0; i < 32; i += 4)
-		v |= (PAGE_SHIFT - 10) << i;
-	t4_write_reg(adap, SGE_HOST_PAGE_SIZE, v);
-	t4_write_reg(adap, SGE_FL_BUFFER_SIZE0, PAGE_SIZE);
-#if FL_PG_ORDER > 0
-	t4_write_reg(adap, SGE_FL_BUFFER_SIZE1, PAGE_SIZE << FL_PG_ORDER);
-#endif
+	/*
+	 * SGE_FL_BUFFER_SIZE0 (RX_SMALL_PG_BUF) is set up by
+	 * t4_fixup_host_params().
+	 */
+	s->fl_pg_order = FL_PG_ORDER;
+	if (s->fl_pg_order)
+		t4_write_reg(adap,
+			     SGE_FL_BUFFER_SIZE0+RX_LARGE_PG_BUF*sizeof(u32),
+			     PAGE_SIZE << FL_PG_ORDER);
+	t4_write_reg(adap, SGE_FL_BUFFER_SIZE0+RX_SMALL_MTU_BUF*sizeof(u32),
+		     FL_MTU_SMALL_BUFSIZE(adap));
+	t4_write_reg(adap, SGE_FL_BUFFER_SIZE0+RX_LARGE_MTU_BUF*sizeof(u32),
+		     FL_MTU_LARGE_BUFSIZE(adap));
+
+	/*
+	 * Note that the SGE Ingress Packet Count Interrupt Threshold and
+	 * Timer Holdoff values must be supplied by our caller.
+	 */
 	t4_write_reg(adap, SGE_INGRESS_RX_THRESHOLD,
 		     THRESHOLD_0(s->counter_val[0]) |
 		     THRESHOLD_1(s->counter_val[1]) |
@@ -2449,14 +2622,54 @@ void t4_sge_init(struct adapter *adap)
 		     TIMERVALUE0(us_to_core_ticks(adap, s->timer_val[0])) |
 		     TIMERVALUE1(us_to_core_ticks(adap, s->timer_val[1])));
 	t4_write_reg(adap, SGE_TIMER_VALUE_2_AND_3,
-		     TIMERVALUE0(us_to_core_ticks(adap, s->timer_val[2])) |
-		     TIMERVALUE1(us_to_core_ticks(adap, s->timer_val[3])));
+		     TIMERVALUE2(us_to_core_ticks(adap, s->timer_val[2])) |
+		     TIMERVALUE3(us_to_core_ticks(adap, s->timer_val[3])));
 	t4_write_reg(adap, SGE_TIMER_VALUE_4_AND_5,
-		     TIMERVALUE0(us_to_core_ticks(adap, s->timer_val[4])) |
-		     TIMERVALUE1(us_to_core_ticks(adap, s->timer_val[5])));
+		     TIMERVALUE4(us_to_core_ticks(adap, s->timer_val[4])) |
+		     TIMERVALUE5(us_to_core_ticks(adap, s->timer_val[5])));
+
+	return 0;
+}
+
+int t4_sge_init(struct adapter *adap)
+{
+	struct sge *s = &adap->sge;
+	u32 sge_control;
+	int ret;
+
+	/*
+	 * Ingress Padding Boundary and Egress Status Page Size are set up by
+	 * t4_fixup_host_params().
+	 */
+	sge_control = t4_read_reg(adap, SGE_CONTROL);
+	s->pktshift = PKTSHIFT_GET(sge_control);
+	s->stat_len = (sge_control & EGRSTATUSPAGESIZE_MASK) ? 128 : 64;
+	s->fl_align = 1 << (INGPADBOUNDARY_GET(sge_control) +
+			    X_INGPADBOUNDARY_SHIFT);
+
+	if (adap->flags & USING_SOFT_PARAMS)
+		ret = t4_sge_init_soft(adap);
+	else
+		ret = t4_sge_init_hard(adap);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * A FL with <= fl_starve_thres buffers is starving and a periodic
+	 * timer will attempt to refill it.  This needs to be larger than the
+	 * SGE's Egress Congestion Threshold.  If it isn't, then we can get
+	 * stuck waiting for new packets while the SGE is waiting for us to
+	 * give it more Free List entries.  (Note that the SGE's Egress
+	 * Congestion Threshold is in units of 2 Free List pointers.)
+	 */
+	s->fl_starve_thres
+		= EGRTHRESHOLD_GET(t4_read_reg(adap, SGE_CONM_CTRL))*2 + 1;
+
 	setup_timer(&s->rx_timer, sge_rx_timer_cb, (unsigned long)adap);
 	setup_timer(&s->tx_timer, sge_tx_timer_cb, (unsigned long)adap);
 	s->starve_thres = core_ticks_per_usec(adap) * 1000000;  /* 1 s */
 	s->idma_state[0] = s->idma_state[1] = 0;
 	spin_lock_init(&s->intrq_lock);
+
+	return 0;
 }
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index fa947dfa4c3..35b81d8b59e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -120,6 +120,28 @@ static void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
 	}
 }
 
+/**
+ *	t4_write_indirect - write indirectly addressed registers
+ *	@adap: the adapter
+ *	@addr_reg: register holding the indirect addresses
+ *	@data_reg: register holding the value for the indirect registers
+ *	@vals: values to write
+ *	@nregs: how many indirect registers to write
+ *	@start_idx: address of first indirect register to write
+ *
+ *	Writes a sequential block of registers that are accessed indirectly
+ *	through an address/data register pair.
+ */
+void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
+		       unsigned int data_reg, const u32 *vals,
+		       unsigned int nregs, unsigned int start_idx)
+{
+	while (nregs--) {
+		t4_write_reg(adap, addr_reg, start_idx++);
+		t4_write_reg(adap, data_reg, *vals++);
+	}
+}
+
 /*
  * Get the reply to a mailbox command and store it in @rpl in big-endian order.
  */
@@ -330,6 +352,143 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
 	return 0;
 }
 
+/*
+ *	t4_mem_win_rw - read/write memory through PCIE memory window
+ *	@adap: the adapter
+ *	@addr: address of first byte requested
+ *	@data: MEMWIN0_APERTURE bytes of data containing the requested address
+ *	@dir: direction of transfer 1 => read, 0 => write
+ *
+ *	Read/write MEMWIN0_APERTURE bytes of data from MC starting at a
+ *	MEMWIN0_APERTURE-byte-aligned address that covers the requested
+ *	address @addr.
+ */
+static int t4_mem_win_rw(struct adapter *adap, u32 addr, __be32 *data, int dir)
+{
+	int i;
+
+	/*
+	 * Setup offset into PCIE memory window.  Address must be a
+	 * MEMWIN0_APERTURE-byte-aligned address.  (Read back MA register to
+	 * ensure that changes propagate before we attempt to use the new
+	 * values.)
+	 */
+	t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET,
+		     addr & ~(MEMWIN0_APERTURE - 1));
+	t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET);
+
+	/* Collecting data 4 bytes at a time upto MEMWIN0_APERTURE */
+	for (i = 0; i < MEMWIN0_APERTURE; i = i+0x4) {
+		if (dir)
+			*data++ = t4_read_reg(adap, (MEMWIN0_BASE + i));
+		else
+			t4_write_reg(adap, (MEMWIN0_BASE + i), *data++);
+	}
+
+	return 0;
+}
+
+/**
+ *	t4_memory_rw - read/write EDC 0, EDC 1 or MC via PCIE memory window
+ *	@adap: the adapter
+ *	@mtype: memory type: MEM_EDC0, MEM_EDC1 or MEM_MC
+ *	@addr: address within indicated memory type
+ *	@len: amount of memory to transfer
+ *	@buf: host memory buffer
+ *	@dir: direction of transfer 1 => read, 0 => write
+ *
+ *	Reads/writes an [almost] arbitrary memory region in the firmware: the
+ *	firmware memory address, length and host buffer must be aligned on
+ *	32-bit boudaries.  The memory is transferred as a raw byte sequence
+ *	from/to the firmware's memory.  If this memory contains data
+ *	structures which contain multi-byte integers, it's the callers
+ *	responsibility to perform appropriate byte order conversions.
+ */
+static int t4_memory_rw(struct adapter *adap, int mtype, u32 addr, u32 len,
+			__be32 *buf, int dir)
+{
+	u32 pos, start, end, offset, memoffset;
+	int ret;
+
+	/*
+	 * Argument sanity checks ...
+	 */
+	if ((addr & 0x3) || (len & 0x3))
+		return -EINVAL;
+
+	/*
+	 * Offset into the region of memory which is being accessed
+	 * MEM_EDC0 = 0
+	 * MEM_EDC1 = 1
+	 * MEM_MC   = 2
+	 */
+	memoffset = (mtype * (5 * 1024 * 1024));
+
+	/* Determine the PCIE_MEM_ACCESS_OFFSET */
+	addr = addr + memoffset;
+
+	/*
+	 * The underlaying EDC/MC read routines read MEMWIN0_APERTURE bytes
+	 * at a time so we need to round down the start and round up the end.
+	 * We'll start copying out of the first line at (addr - start) a word
+	 * at a time.
+	 */
+	start = addr & ~(MEMWIN0_APERTURE-1);
+	end = (addr + len + MEMWIN0_APERTURE-1) & ~(MEMWIN0_APERTURE-1);
+	offset = (addr - start)/sizeof(__be32);
+
+	for (pos = start; pos < end; pos += MEMWIN0_APERTURE, offset = 0) {
+		__be32 data[MEMWIN0_APERTURE/sizeof(__be32)];
+
+		/*
+		 * If we're writing, copy the data from the caller's memory
+		 * buffer
+		 */
+		if (!dir) {
+			/*
+			 * If we're doing a partial write, then we need to do
+			 * a read-modify-write ...
+			 */
+			if (offset || len < MEMWIN0_APERTURE) {
+				ret = t4_mem_win_rw(adap, pos, data, 1);
+				if (ret)
+					return ret;
+			}
+			while (offset < (MEMWIN0_APERTURE/sizeof(__be32)) &&
+			       len > 0) {
+				data[offset++] = *buf++;
+				len -= sizeof(__be32);
+			}
+		}
+
+		/*
+		 * Transfer a block of memory and bail if there's an error.
+		 */
+		ret = t4_mem_win_rw(adap, pos, data, dir);
+		if (ret)
+			return ret;
+
+		/*
+		 * If we're reading, copy the data into the caller's memory
+		 * buffer.
+		 */
+		if (dir)
+			while (offset < (MEMWIN0_APERTURE/sizeof(__be32)) &&
+			       len > 0) {
+				*buf++ = data[offset++];
+				len -= sizeof(__be32);
+			}
+	}
+
+	return 0;
+}
+
+int t4_memory_write(struct adapter *adap, int mtype, u32 addr, u32 len,
+		    __be32 *buf)
+{
+	return t4_memory_rw(adap, mtype, addr, len, buf, 0);
+}
+
 #define EEPROM_STAT_ADDR   0x7bfc
 #define VPD_BASE           0
 #define VPD_LEN            512
@@ -355,8 +514,9 @@ int t4_seeprom_wp(struct adapter *adapter, bool enable)
  *
  *	Reads card parameters stored in VPD EEPROM.
  */
-static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
+int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
 {
+	u32 cclk_param, cclk_val;
 	int i, ret;
 	int ec, sn;
 	u8 vpd[VPD_LEN], csum;
@@ -418,6 +578,19 @@ static int get_vpd_params(struct adapter *adapter, struct vpd_params *p)
 	i = pci_vpd_info_field_size(vpd + sn - PCI_VPD_INFO_FLD_HDR_SIZE);
 	memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN));
 	strim(p->sn);
+
+	/*
+	 * Ask firmware for the Core Clock since it knows how to translate the
+	 * Reference Clock ('V2') VPD field into a Core Clock value ...
+	 */
+	cclk_param = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+		      FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK));
+	ret = t4_query_params(adapter, adapter->mbox, 0, 0,
+			      1, &cclk_param, &cclk_val);
+	if (ret)
+		return ret;
+	p->cclk = cclk_val;
+
 	return 0;
 }
 
@@ -718,6 +891,77 @@ static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end)
 }
 
 /**
+ *	t4_flash_cfg_addr - return the address of the flash configuration file
+ *	@adapter: the adapter
+ *
+ *	Return the address within the flash where the Firmware Configuration
+ *	File is stored.
+ */
+unsigned int t4_flash_cfg_addr(struct adapter *adapter)
+{
+	if (adapter->params.sf_size == 0x100000)
+		return FLASH_FPGA_CFG_START;
+	else
+		return FLASH_CFG_START;
+}
+
+/**
+ *	t4_load_cfg - download config file
+ *	@adap: the adapter
+ *	@cfg_data: the cfg text file to write
+ *	@size: text file size
+ *
+ *	Write the supplied config text file to the card's serial flash.
+ */
+int t4_load_cfg(struct adapter *adap, const u8 *cfg_data, unsigned int size)
+{
+	int ret, i, n;
+	unsigned int addr;
+	unsigned int flash_cfg_start_sec;
+	unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
+
+	addr = t4_flash_cfg_addr(adap);
+	flash_cfg_start_sec = addr / SF_SEC_SIZE;
+
+	if (size > FLASH_CFG_MAX_SIZE) {
+		dev_err(adap->pdev_dev, "cfg file too large, max is %u bytes\n",
+			FLASH_CFG_MAX_SIZE);
+		return -EFBIG;
+	}
+
+	i = DIV_ROUND_UP(FLASH_CFG_MAX_SIZE,	/* # of sectors spanned */
+			 sf_sec_size);
+	ret = t4_flash_erase_sectors(adap, flash_cfg_start_sec,
+				     flash_cfg_start_sec + i - 1);
+	/*
+	 * If size == 0 then we're simply erasing the FLASH sectors associated
+	 * with the on-adapter Firmware Configuration File.
+	 */
+	if (ret || size == 0)
+		goto out;
+
+	/* this will write to the flash up to SF_PAGE_SIZE at a time */
+	for (i = 0; i < size; i += SF_PAGE_SIZE) {
+		if ((size - i) <  SF_PAGE_SIZE)
+			n = size - i;
+		else
+			n = SF_PAGE_SIZE;
+		ret = t4_write_flash(adap, addr, n, cfg_data);
+		if (ret)
+			goto out;
+
+		addr += SF_PAGE_SIZE;
+		cfg_data += SF_PAGE_SIZE;
+	}
+
+out:
+	if (ret)
+		dev_err(adap->pdev_dev, "config file %s failed %d\n",
+			(size == 0 ? "clear" : "download"), ret);
+	return ret;
+}
+
+/**
  *	t4_load_fw - download firmware
  *	@adap: the adapter
  *	@fw_data: the firmware image to write
@@ -1018,9 +1262,9 @@ static void sge_intr_handler(struct adapter *adapter)
 		{ ERR_INVALID_CIDX_INC,
 		  "SGE GTS CIDX increment too large", -1, 0 },
 		{ ERR_CPL_OPCODE_0, "SGE received 0-length CPL", -1, 0 },
-		{ F_DBFIFO_LP_INT, NULL, -1, 0, t4_db_full },
-		{ F_DBFIFO_HP_INT, NULL, -1, 0, t4_db_full },
-		{ F_ERR_DROPPED_DB, NULL, -1, 0, t4_db_dropped },
+		{ DBFIFO_LP_INT, NULL, -1, 0, t4_db_full },
+		{ DBFIFO_HP_INT, NULL, -1, 0, t4_db_full },
+		{ ERR_DROPPED_DB, NULL, -1, 0, t4_db_dropped },
 		{ ERR_DATA_CPL_ON_HIGH_QID1 | ERR_DATA_CPL_ON_HIGH_QID0,
 		  "SGE IQID > 1023 received CPL for FL", -1, 0 },
 		{ ERR_BAD_DB_PIDX3, "SGE DBP 3 pidx increment too large", -1,
@@ -1520,7 +1764,7 @@ void t4_intr_enable(struct adapter *adapter)
 		     ERR_BAD_DB_PIDX2 | ERR_BAD_DB_PIDX1 |
 		     ERR_BAD_DB_PIDX0 | ERR_ING_CTXT_PRIO |
 		     ERR_EGR_CTXT_PRIO | INGRESS_SIZE_ERR |
-		     F_DBFIFO_HP_INT | F_DBFIFO_LP_INT |
+		     DBFIFO_HP_INT | DBFIFO_LP_INT |
 		     EGRESS_SIZE_ERR);
 	t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), PF_INTR_MASK);
 	t4_set_reg_field(adapter, PL_INT_MAP0, 0, 1 << pf);
@@ -1717,6 +1961,23 @@ void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log)
 }
 
 /**
+ *	t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register
+ *	@adap: the adapter
+ *	@addr: the indirect TP register address
+ *	@mask: specifies the field within the register to modify
+ *	@val: new value for the field
+ *
+ *	Sets a field of an indirect TP register to the given value.
+ */
+void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
+			    unsigned int mask, unsigned int val)
+{
+	t4_write_reg(adap, TP_PIO_ADDR, addr);
+	val |= t4_read_reg(adap, TP_PIO_DATA) & ~mask;
+	t4_write_reg(adap, TP_PIO_DATA, val);
+}
+
+/**
  *	init_cong_ctrl - initialize congestion control parameters
  *	@a: the alpha values for congestion control
  *	@b: the beta values for congestion control
@@ -2000,9 +2261,9 @@ int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
 	struct fw_ldst_cmd c;
 
 	memset(&c, 0, sizeof(c));
-	c.op_to_addrspace = htonl(V_FW_CMD_OP(FW_LDST_CMD) | F_FW_CMD_REQUEST |
-			    F_FW_CMD_WRITE |
-			    V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FIRMWARE));
+	c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST |
+			    FW_CMD_WRITE |
+			    FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FIRMWARE));
 	c.cycles_to_len16 = htonl(FW_LEN16(c));
 	c.u.addrval.addr = htonl(addr);
 	c.u.addrval.val = htonl(val);
@@ -2033,8 +2294,8 @@ int t4_mem_win_read_len(struct adapter *adap, u32 addr, __be32 *data, int len)
 	if ((addr & 3) || (len + off) > MEMWIN0_APERTURE)
 		return -EINVAL;
 
-	t4_write_reg(adap, A_PCIE_MEM_ACCESS_OFFSET, addr & ~15);
-	t4_read_reg(adap, A_PCIE_MEM_ACCESS_OFFSET);
+	t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET, addr & ~15);
+	t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET);
 
 	for (i = 0; i < len; i += 4)
 		*data++ = t4_read_reg(adap, (MEMWIN0_BASE + off + i));
@@ -2102,39 +2363,129 @@ int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
 }
 
 /**
- *	t4_fw_hello - establish communication with FW
- *	@adap: the adapter
- *	@mbox: mailbox to use for the FW command
- *	@evt_mbox: mailbox to receive async FW events
- *	@master: specifies the caller's willingness to be the device master
- *	@state: returns the current device state
+ *      t4_fw_hello - establish communication with FW
+ *      @adap: the adapter
+ *      @mbox: mailbox to use for the FW command
+ *      @evt_mbox: mailbox to receive async FW events
+ *      @master: specifies the caller's willingness to be the device master
+ *	@state: returns the current device state (if non-NULL)
  *
- *	Issues a command to establish communication with FW.
+ *	Issues a command to establish communication with FW.  Returns either
+ *	an error (negative integer) or the mailbox of the Master PF.
  */
 int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
 		enum dev_master master, enum dev_state *state)
 {
 	int ret;
 	struct fw_hello_cmd c;
+	u32 v;
+	unsigned int master_mbox;
+	int retries = FW_CMD_HELLO_RETRIES;
 
+retry:
+	memset(&c, 0, sizeof(c));
 	INIT_CMD(c, HELLO, WRITE);
 	c.err_to_mbasyncnot = htonl(
 		FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) |
 		FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) |
-		FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox : 0xff) |
-		FW_HELLO_CMD_MBASYNCNOT(evt_mbox));
+		FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox :
+				      FW_HELLO_CMD_MBMASTER_MASK) |
+		FW_HELLO_CMD_MBASYNCNOT(evt_mbox) |
+		FW_HELLO_CMD_STAGE(fw_hello_cmd_stage_os) |
+		FW_HELLO_CMD_CLEARINIT);
 
+	/*
+	 * Issue the HELLO command to the firmware.  If it's not successful
+	 * but indicates that we got a "busy" or "timeout" condition, retry
+	 * the HELLO until we exhaust our retry limit.
+	 */
 	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
-	if (ret == 0 && state) {
-		u32 v = ntohl(c.err_to_mbasyncnot);
-		if (v & FW_HELLO_CMD_INIT)
-			*state = DEV_STATE_INIT;
-		else if (v & FW_HELLO_CMD_ERR)
+	if (ret < 0) {
+		if ((ret == -EBUSY || ret == -ETIMEDOUT) && retries-- > 0)
+			goto retry;
+		return ret;
+	}
+
+	v = ntohl(c.err_to_mbasyncnot);
+	master_mbox = FW_HELLO_CMD_MBMASTER_GET(v);
+	if (state) {
+		if (v & FW_HELLO_CMD_ERR)
 			*state = DEV_STATE_ERR;
+		else if (v & FW_HELLO_CMD_INIT)
+			*state = DEV_STATE_INIT;
 		else
 			*state = DEV_STATE_UNINIT;
 	}
-	return ret;
+
+	/*
+	 * If we're not the Master PF then we need to wait around for the
+	 * Master PF Driver to finish setting up the adapter.
+	 *
+	 * Note that we also do this wait if we're a non-Master-capable PF and
+	 * there is no current Master PF; a Master PF may show up momentarily
+	 * and we wouldn't want to fail pointlessly.  (This can happen when an
+	 * OS loads lots of different drivers rapidly at the same time).  In
+	 * this case, the Master PF returned by the firmware will be
+	 * FW_PCIE_FW_MASTER_MASK so the test below will work ...
+	 */
+	if ((v & (FW_HELLO_CMD_ERR|FW_HELLO_CMD_INIT)) == 0 &&
+	    master_mbox != mbox) {
+		int waiting = FW_CMD_HELLO_TIMEOUT;
+
+		/*
+		 * Wait for the firmware to either indicate an error or
+		 * initialized state.  If we see either of these we bail out
+		 * and report the issue to the caller.  If we exhaust the
+		 * "hello timeout" and we haven't exhausted our retries, try
+		 * again.  Otherwise bail with a timeout error.
+		 */
+		for (;;) {
+			u32 pcie_fw;
+
+			msleep(50);
+			waiting -= 50;
+
+			/*
+			 * If neither Error nor Initialialized are indicated
+			 * by the firmware keep waiting till we exaust our
+			 * timeout ... and then retry if we haven't exhausted
+			 * our retries ...
+			 */
+			pcie_fw = t4_read_reg(adap, MA_PCIE_FW);
+			if (!(pcie_fw & (FW_PCIE_FW_ERR|FW_PCIE_FW_INIT))) {
+				if (waiting <= 0) {
+					if (retries-- > 0)
+						goto retry;
+
+					return -ETIMEDOUT;
+				}
+				continue;
+			}
+
+			/*
+			 * We either have an Error or Initialized condition
+			 * report errors preferentially.
+			 */
+			if (state) {
+				if (pcie_fw & FW_PCIE_FW_ERR)
+					*state = DEV_STATE_ERR;
+				else if (pcie_fw & FW_PCIE_FW_INIT)
+					*state = DEV_STATE_INIT;
+			}
+
+			/*
+			 * If we arrived before a Master PF was selected and
+			 * there's not a valid Master PF, grab its identity
+			 * for our caller.
+			 */
+			if (master_mbox == FW_PCIE_FW_MASTER_MASK &&
+			    (pcie_fw & FW_PCIE_FW_MASTER_VLD))
+				master_mbox = FW_PCIE_FW_MASTER_GET(pcie_fw);
+			break;
+		}
+	}
+
+	return master_mbox;
 }
 
 /**
@@ -2186,6 +2537,334 @@ int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset)
 }
 
 /**
+ *	t4_fw_halt - issue a reset/halt to FW and put uP into RESET
+ *	@adap: the adapter
+ *	@mbox: mailbox to use for the FW RESET command (if desired)
+ *	@force: force uP into RESET even if FW RESET command fails
+ *
+ *	Issues a RESET command to firmware (if desired) with a HALT indication
+ *	and then puts the microprocessor into RESET state.  The RESET command
+ *	will only be issued if a legitimate mailbox is provided (mbox <=
+ *	FW_PCIE_FW_MASTER_MASK).
+ *
+ *	This is generally used in order for the host to safely manipulate the
+ *	adapter without fear of conflicting with whatever the firmware might
+ *	be doing.  The only way out of this state is to RESTART the firmware
+ *	...
+ */
+int t4_fw_halt(struct adapter *adap, unsigned int mbox, int force)
+{
+	int ret = 0;
+
+	/*
+	 * If a legitimate mailbox is provided, issue a RESET command
+	 * with a HALT indication.
+	 */
+	if (mbox <= FW_PCIE_FW_MASTER_MASK) {
+		struct fw_reset_cmd c;
+
+		memset(&c, 0, sizeof(c));
+		INIT_CMD(c, RESET, WRITE);
+		c.val = htonl(PIORST | PIORSTMODE);
+		c.halt_pkd = htonl(FW_RESET_CMD_HALT(1U));
+		ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
+	}
+
+	/*
+	 * Normally we won't complete the operation if the firmware RESET
+	 * command fails but if our caller insists we'll go ahead and put the
+	 * uP into RESET.  This can be useful if the firmware is hung or even
+	 * missing ...  We'll have to take the risk of putting the uP into
+	 * RESET without the cooperation of firmware in that case.
+	 *
+	 * We also force the firmware's HALT flag to be on in case we bypassed
+	 * the firmware RESET command above or we're dealing with old firmware
+	 * which doesn't have the HALT capability.  This will serve as a flag
+	 * for the incoming firmware to know that it's coming out of a HALT
+	 * rather than a RESET ... if it's new enough to understand that ...
+	 */
+	if (ret == 0 || force) {
+		t4_set_reg_field(adap, CIM_BOOT_CFG, UPCRST, UPCRST);
+		t4_set_reg_field(adap, PCIE_FW, FW_PCIE_FW_HALT,
+				 FW_PCIE_FW_HALT);
+	}
+
+	/*
+	 * And we always return the result of the firmware RESET command
+	 * even when we force the uP into RESET ...
+	 */
+	return ret;
+}
+
+/**
+ *	t4_fw_restart - restart the firmware by taking the uP out of RESET
+ *	@adap: the adapter
+ *	@reset: if we want to do a RESET to restart things
+ *
+ *	Restart firmware previously halted by t4_fw_halt().  On successful
+ *	return the previous PF Master remains as the new PF Master and there
+ *	is no need to issue a new HELLO command, etc.
+ *
+ *	We do this in two ways:
+ *
+ *	 1. If we're dealing with newer firmware we'll simply want to take
+ *	    the chip's microprocessor out of RESET.  This will cause the
+ *	    firmware to start up from its start vector.  And then we'll loop
+ *	    until the firmware indicates it's started again (PCIE_FW.HALT
+ *	    reset to 0) or we timeout.
+ *
+ *	 2. If we're dealing with older firmware then we'll need to RESET
+ *	    the chip since older firmware won't recognize the PCIE_FW.HALT
+ *	    flag and automatically RESET itself on startup.
+ */
+int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset)
+{
+	if (reset) {
+		/*
+		 * Since we're directing the RESET instead of the firmware
+		 * doing it automatically, we need to clear the PCIE_FW.HALT
+		 * bit.
+		 */
+		t4_set_reg_field(adap, PCIE_FW, FW_PCIE_FW_HALT, 0);
+
+		/*
+		 * If we've been given a valid mailbox, first try to get the
+		 * firmware to do the RESET.  If that works, great and we can
+		 * return success.  Otherwise, if we haven't been given a
+		 * valid mailbox or the RESET command failed, fall back to
+		 * hitting the chip with a hammer.
+		 */
+		if (mbox <= FW_PCIE_FW_MASTER_MASK) {
+			t4_set_reg_field(adap, CIM_BOOT_CFG, UPCRST, 0);
+			msleep(100);
+			if (t4_fw_reset(adap, mbox,
+					PIORST | PIORSTMODE) == 0)
+				return 0;
+		}
+
+		t4_write_reg(adap, PL_RST, PIORST | PIORSTMODE);
+		msleep(2000);
+	} else {
+		int ms;
+
+		t4_set_reg_field(adap, CIM_BOOT_CFG, UPCRST, 0);
+		for (ms = 0; ms < FW_CMD_MAX_TIMEOUT; ) {
+			if (!(t4_read_reg(adap, PCIE_FW) & FW_PCIE_FW_HALT))
+				return 0;
+			msleep(100);
+			ms += 100;
+		}
+		return -ETIMEDOUT;
+	}
+	return 0;
+}
+
+/**
+ *	t4_fw_upgrade - perform all of the steps necessary to upgrade FW
+ *	@adap: the adapter
+ *	@mbox: mailbox to use for the FW RESET command (if desired)
+ *	@fw_data: the firmware image to write
+ *	@size: image size
+ *	@force: force upgrade even if firmware doesn't cooperate
+ *
+ *	Perform all of the steps necessary for upgrading an adapter's
+ *	firmware image.  Normally this requires the cooperation of the
+ *	existing firmware in order to halt all existing activities
+ *	but if an invalid mailbox token is passed in we skip that step
+ *	(though we'll still put the adapter microprocessor into RESET in
+ *	that case).
+ *
+ *	On successful return the new firmware will have been loaded and
+ *	the adapter will have been fully RESET losing all previous setup
+ *	state.  On unsuccessful return the adapter may be completely hosed ...
+ *	positive errno indicates that the adapter is ~probably~ intact, a
+ *	negative errno indicates that things are looking bad ...
+ */
+int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
+		  const u8 *fw_data, unsigned int size, int force)
+{
+	const struct fw_hdr *fw_hdr = (const struct fw_hdr *)fw_data;
+	int reset, ret;
+
+	ret = t4_fw_halt(adap, mbox, force);
+	if (ret < 0 && !force)
+		return ret;
+
+	ret = t4_load_fw(adap, fw_data, size);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Older versions of the firmware don't understand the new
+	 * PCIE_FW.HALT flag and so won't know to perform a RESET when they
+	 * restart.  So for newly loaded older firmware we'll have to do the
+	 * RESET for it so it starts up on a clean slate.  We can tell if
+	 * the newly loaded firmware will handle this right by checking
+	 * its header flags to see if it advertises the capability.
+	 */
+	reset = ((ntohl(fw_hdr->flags) & FW_HDR_FLAGS_RESET_HALT) == 0);
+	return t4_fw_restart(adap, mbox, reset);
+}
+
+
+/**
+ *	t4_fw_config_file - setup an adapter via a Configuration File
+ *	@adap: the adapter
+ *	@mbox: mailbox to use for the FW command
+ *	@mtype: the memory type where the Configuration File is located
+ *	@maddr: the memory address where the Configuration File is located
+ *	@finiver: return value for CF [fini] version
+ *	@finicsum: return value for CF [fini] checksum
+ *	@cfcsum: return value for CF computed checksum
+ *
+ *	Issue a command to get the firmware to process the Configuration
+ *	File located at the specified mtype/maddress.  If the Configuration
+ *	File is processed successfully and return value pointers are
+ *	provided, the Configuration File "[fini] section version and
+ *	checksum values will be returned along with the computed checksum.
+ *	It's up to the caller to decide how it wants to respond to the
+ *	checksums not matching but it recommended that a prominant warning
+ *	be emitted in order to help people rapidly identify changed or
+ *	corrupted Configuration Files.
+ *
+ *	Also note that it's possible to modify things like "niccaps",
+ *	"toecaps",etc. between processing the Configuration File and telling
+ *	the firmware to use the new configuration.  Callers which want to
+ *	do this will need to "hand-roll" their own CAPS_CONFIGS commands for
+ *	Configuration Files if they want to do this.
+ */
+int t4_fw_config_file(struct adapter *adap, unsigned int mbox,
+		      unsigned int mtype, unsigned int maddr,
+		      u32 *finiver, u32 *finicsum, u32 *cfcsum)
+{
+	struct fw_caps_config_cmd caps_cmd;
+	int ret;
+
+	/*
+	 * Tell the firmware to process the indicated Configuration File.
+	 * If there are no errors and the caller has provided return value
+	 * pointers for the [fini] section version, checksum and computed
+	 * checksum, pass those back to the caller.
+	 */
+	memset(&caps_cmd, 0, sizeof(caps_cmd));
+	caps_cmd.op_to_write =
+		htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+		      FW_CMD_REQUEST |
+		      FW_CMD_READ);
+	caps_cmd.retval_len16 =
+		htonl(FW_CAPS_CONFIG_CMD_CFVALID |
+		      FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
+		      FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) |
+		      FW_LEN16(caps_cmd));
+	ret = t4_wr_mbox(adap, mbox, &caps_cmd, sizeof(caps_cmd), &caps_cmd);
+	if (ret < 0)
+		return ret;
+
+	if (finiver)
+		*finiver = ntohl(caps_cmd.finiver);
+	if (finicsum)
+		*finicsum = ntohl(caps_cmd.finicsum);
+	if (cfcsum)
+		*cfcsum = ntohl(caps_cmd.cfcsum);
+
+	/*
+	 * And now tell the firmware to use the configuration we just loaded.
+	 */
+	caps_cmd.op_to_write =
+		htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+		      FW_CMD_REQUEST |
+		      FW_CMD_WRITE);
+	caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+	return t4_wr_mbox(adap, mbox, &caps_cmd, sizeof(caps_cmd), NULL);
+}
+
+/**
+ *	t4_fixup_host_params - fix up host-dependent parameters
+ *	@adap: the adapter
+ *	@page_size: the host's Base Page Size
+ *	@cache_line_size: the host's Cache Line Size
+ *
+ *	Various registers in T4 contain values which are dependent on the
+ *	host's Base Page and Cache Line Sizes.  This function will fix all of
+ *	those registers with the appropriate values as passed in ...
+ */
+int t4_fixup_host_params(struct adapter *adap, unsigned int page_size,
+			 unsigned int cache_line_size)
+{
+	unsigned int page_shift = fls(page_size) - 1;
+	unsigned int sge_hps = page_shift - 10;
+	unsigned int stat_len = cache_line_size > 64 ? 128 : 64;
+	unsigned int fl_align = cache_line_size < 32 ? 32 : cache_line_size;
+	unsigned int fl_align_log = fls(fl_align) - 1;
+
+	t4_write_reg(adap, SGE_HOST_PAGE_SIZE,
+		     HOSTPAGESIZEPF0(sge_hps) |
+		     HOSTPAGESIZEPF1(sge_hps) |
+		     HOSTPAGESIZEPF2(sge_hps) |
+		     HOSTPAGESIZEPF3(sge_hps) |
+		     HOSTPAGESIZEPF4(sge_hps) |
+		     HOSTPAGESIZEPF5(sge_hps) |
+		     HOSTPAGESIZEPF6(sge_hps) |
+		     HOSTPAGESIZEPF7(sge_hps));
+
+	t4_set_reg_field(adap, SGE_CONTROL,
+			 INGPADBOUNDARY(INGPADBOUNDARY_MASK) |
+			 EGRSTATUSPAGESIZE_MASK,
+			 INGPADBOUNDARY(fl_align_log - 5) |
+			 EGRSTATUSPAGESIZE(stat_len != 64));
+
+	/*
+	 * Adjust various SGE Free List Host Buffer Sizes.
+	 *
+	 * This is something of a crock since we're using fixed indices into
+	 * the array which are also known by the sge.c code and the T4
+	 * Firmware Configuration File.  We need to come up with a much better
+	 * approach to managing this array.  For now, the first four entries
+	 * are:
+	 *
+	 *   0: Host Page Size
+	 *   1: 64KB
+	 *   2: Buffer size corresponding to 1500 byte MTU (unpacked mode)
+	 *   3: Buffer size corresponding to 9000 byte MTU (unpacked mode)
+	 *
+	 * For the single-MTU buffers in unpacked mode we need to include
+	 * space for the SGE Control Packet Shift, 14 byte Ethernet header,
+	 * possible 4 byte VLAN tag, all rounded up to the next Ingress Packet
+	 * Padding boundry.  All of these are accommodated in the Factory
+	 * Default Firmware Configuration File but we need to adjust it for
+	 * this host's cache line size.
+	 */
+	t4_write_reg(adap, SGE_FL_BUFFER_SIZE0, page_size);
+	t4_write_reg(adap, SGE_FL_BUFFER_SIZE2,
+		     (t4_read_reg(adap, SGE_FL_BUFFER_SIZE2) + fl_align-1)
+		     & ~(fl_align-1));
+	t4_write_reg(adap, SGE_FL_BUFFER_SIZE3,
+		     (t4_read_reg(adap, SGE_FL_BUFFER_SIZE3) + fl_align-1)
+		     & ~(fl_align-1));
+
+	t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(page_shift - 12));
+
+	return 0;
+}
+
+/**
+ *	t4_fw_initialize - ask FW to initialize the device
+ *	@adap: the adapter
+ *	@mbox: mailbox to use for the FW command
+ *
+ *	Issues a command to FW to partially initialize the device.  This
+ *	performs initialization that generally doesn't depend on user input.
+ */
+int t4_fw_initialize(struct adapter *adap, unsigned int mbox)
+{
+	struct fw_initialize_cmd c;
+
+	memset(&c, 0, sizeof(c));
+	INIT_CMD(c, INITIALIZE, WRITE);
+	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
+}
+
+/**
  *	t4_query_params - query FW or device parameters
  *	@adap: the adapter
  *	@mbox: mailbox to use for the FW command
@@ -2741,11 +3420,9 @@ static void __devinit get_pci_mode(struct adapter *adapter,
 				   struct pci_params *p)
 {
 	u16 val;
-	u32 pcie_cap = pci_pcie_cap(adapter->pdev);
 
-	if (pcie_cap) {
-		pci_read_config_word(adapter->pdev, pcie_cap + PCI_EXP_LNKSTA,
-				     &val);
+	if (pci_is_pcie(adapter->pdev)) {
+		pcie_capability_read_word(adapter->pdev, PCI_EXP_LNKSTA, &val);
 		p->speed = val & PCI_EXP_LNKSTA_CLS;
 		p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4;
 	}
@@ -2837,10 +3514,6 @@ int __devinit t4_prep_adapter(struct adapter *adapter)
 		return ret;
 	}
 
-	ret = get_vpd_params(adapter, &adapter->params.vpd);
-	if (ret < 0)
-		return ret;
-
 	init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
 
 	/*
@@ -2848,6 +3521,7 @@ int __devinit t4_prep_adapter(struct adapter *adapter)
 	 */
 	adapter->params.nports = 1;
 	adapter->params.portvec = 1;
+	adapter->params.vpd.cclk = 50000;
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
index c26b455f37d..f534ed7e10e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
@@ -58,6 +58,7 @@ enum {
 
 enum {
 	SF_PAGE_SIZE = 256,           /* serial flash page size */
+	SF_SEC_SIZE = 64 * 1024,      /* serial flash sector size */
 };
 
 enum { RSP_TYPE_FLBUF, RSP_TYPE_CPL, RSP_TYPE_INTR }; /* response entry types */
@@ -137,4 +138,83 @@ struct rsp_ctrl {
 #define QINTR_CNT_EN       0x1
 #define QINTR_TIMER_IDX(x) ((x) << 1)
 #define QINTR_TIMER_IDX_GET(x) (((x) >> 1) & 0x7)
+
+/*
+ * Flash layout.
+ */
+#define FLASH_START(start)	((start) * SF_SEC_SIZE)
+#define FLASH_MAX_SIZE(nsecs)	((nsecs) * SF_SEC_SIZE)
+
+enum {
+	/*
+	 * Various Expansion-ROM boot images, etc.
+	 */
+	FLASH_EXP_ROM_START_SEC = 0,
+	FLASH_EXP_ROM_NSECS = 6,
+	FLASH_EXP_ROM_START = FLASH_START(FLASH_EXP_ROM_START_SEC),
+	FLASH_EXP_ROM_MAX_SIZE = FLASH_MAX_SIZE(FLASH_EXP_ROM_NSECS),
+
+	/*
+	 * iSCSI Boot Firmware Table (iBFT) and other driver-related
+	 * parameters ...
+	 */
+	FLASH_IBFT_START_SEC = 6,
+	FLASH_IBFT_NSECS = 1,
+	FLASH_IBFT_START = FLASH_START(FLASH_IBFT_START_SEC),
+	FLASH_IBFT_MAX_SIZE = FLASH_MAX_SIZE(FLASH_IBFT_NSECS),
+
+	/*
+	 * Boot configuration data.
+	 */
+	FLASH_BOOTCFG_START_SEC = 7,
+	FLASH_BOOTCFG_NSECS = 1,
+	FLASH_BOOTCFG_START = FLASH_START(FLASH_BOOTCFG_START_SEC),
+	FLASH_BOOTCFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_BOOTCFG_NSECS),
+
+	/*
+	 * Location of firmware image in FLASH.
+	 */
+	FLASH_FW_START_SEC = 8,
+	FLASH_FW_NSECS = 8,
+	FLASH_FW_START = FLASH_START(FLASH_FW_START_SEC),
+	FLASH_FW_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FW_NSECS),
+
+	/*
+	 * iSCSI persistent/crash information.
+	 */
+	FLASH_ISCSI_CRASH_START_SEC = 29,
+	FLASH_ISCSI_CRASH_NSECS = 1,
+	FLASH_ISCSI_CRASH_START = FLASH_START(FLASH_ISCSI_CRASH_START_SEC),
+	FLASH_ISCSI_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_ISCSI_CRASH_NSECS),
+
+	/*
+	 * FCoE persistent/crash information.
+	 */
+	FLASH_FCOE_CRASH_START_SEC = 30,
+	FLASH_FCOE_CRASH_NSECS = 1,
+	FLASH_FCOE_CRASH_START = FLASH_START(FLASH_FCOE_CRASH_START_SEC),
+	FLASH_FCOE_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FCOE_CRASH_NSECS),
+
+	/*
+	 * Location of Firmware Configuration File in FLASH.  Since the FPGA
+	 * "FLASH" is smaller we need to store the Configuration File in a
+	 * different location -- which will overlap the end of the firmware
+	 * image if firmware ever gets that large ...
+	 */
+	FLASH_CFG_START_SEC = 31,
+	FLASH_CFG_NSECS = 1,
+	FLASH_CFG_START = FLASH_START(FLASH_CFG_START_SEC),
+	FLASH_CFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_CFG_NSECS),
+
+	FLASH_FPGA_CFG_START_SEC = 15,
+	FLASH_FPGA_CFG_START = FLASH_START(FLASH_FPGA_CFG_START_SEC),
+
+	/*
+	 * Sectors 32-63 are reserved for FLASH failover.
+	 */
+};
+
+#undef FLASH_START
+#undef FLASH_MAX_SIZE
+
 #endif /* __T4_HW_H */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 111fc323f15..a1a8b57200f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -86,10 +86,17 @@
 #define  CIDXINC_SHIFT     0
 #define  CIDXINC(x)        ((x) << CIDXINC_SHIFT)
 
+#define X_RXPKTCPLMODE_SPLIT     1
+#define X_INGPADBOUNDARY_SHIFT 5
+
 #define SGE_CONTROL 0x1008
 #define  DCASYSTYPE             0x00080000U
-#define  RXPKTCPLMODE           0x00040000U
-#define  EGRSTATUSPAGESIZE      0x00020000U
+#define  RXPKTCPLMODE_MASK      0x00040000U
+#define  RXPKTCPLMODE_SHIFT     18
+#define  RXPKTCPLMODE(x)        ((x) << RXPKTCPLMODE_SHIFT)
+#define  EGRSTATUSPAGESIZE_MASK  0x00020000U
+#define  EGRSTATUSPAGESIZE_SHIFT 17
+#define  EGRSTATUSPAGESIZE(x)    ((x) << EGRSTATUSPAGESIZE_SHIFT)
 #define  PKTSHIFT_MASK          0x00001c00U
 #define  PKTSHIFT_SHIFT         10
 #define  PKTSHIFT(x)            ((x) << PKTSHIFT_SHIFT)
@@ -108,6 +115,35 @@
 #define  GLOBALENABLE           0x00000001U
 
 #define SGE_HOST_PAGE_SIZE 0x100c
+
+#define  HOSTPAGESIZEPF7_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF7_SHIFT  28
+#define  HOSTPAGESIZEPF7(x)     ((x) << HOSTPAGESIZEPF7_SHIFT)
+
+#define  HOSTPAGESIZEPF6_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF6_SHIFT  24
+#define  HOSTPAGESIZEPF6(x)     ((x) << HOSTPAGESIZEPF6_SHIFT)
+
+#define  HOSTPAGESIZEPF5_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF5_SHIFT  20
+#define  HOSTPAGESIZEPF5(x)     ((x) << HOSTPAGESIZEPF5_SHIFT)
+
+#define  HOSTPAGESIZEPF4_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF4_SHIFT  16
+#define  HOSTPAGESIZEPF4(x)     ((x) << HOSTPAGESIZEPF4_SHIFT)
+
+#define  HOSTPAGESIZEPF3_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF3_SHIFT  12
+#define  HOSTPAGESIZEPF3(x)     ((x) << HOSTPAGESIZEPF3_SHIFT)
+
+#define  HOSTPAGESIZEPF2_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF2_SHIFT  8
+#define  HOSTPAGESIZEPF2(x)     ((x) << HOSTPAGESIZEPF2_SHIFT)
+
+#define  HOSTPAGESIZEPF1_MASK   0x0000000fU
+#define  HOSTPAGESIZEPF1_SHIFT  4
+#define  HOSTPAGESIZEPF1(x)     ((x) << HOSTPAGESIZEPF1_SHIFT)
+
 #define  HOSTPAGESIZEPF0_MASK   0x0000000fU
 #define  HOSTPAGESIZEPF0_SHIFT  0
 #define  HOSTPAGESIZEPF0(x)     ((x) << HOSTPAGESIZEPF0_SHIFT)
@@ -155,6 +191,8 @@
 #define SGE_INT_ENABLE3 0x1040
 #define SGE_FL_BUFFER_SIZE0 0x1044
 #define SGE_FL_BUFFER_SIZE1 0x1048
+#define SGE_FL_BUFFER_SIZE2 0x104c
+#define SGE_FL_BUFFER_SIZE3 0x1050
 #define SGE_INGRESS_RX_THRESHOLD 0x10a0
 #define  THRESHOLD_0_MASK   0x3f000000U
 #define  THRESHOLD_0_SHIFT  24
@@ -173,6 +211,12 @@
 #define  THRESHOLD_3(x)     ((x) << THRESHOLD_3_SHIFT)
 #define  THRESHOLD_3_GET(x) (((x) & THRESHOLD_3_MASK) >> THRESHOLD_3_SHIFT)
 
+#define SGE_CONM_CTRL 0x1094
+#define  EGRTHRESHOLD_MASK   0x00003f00U
+#define  EGRTHRESHOLDshift   8
+#define  EGRTHRESHOLD(x)     ((x) << EGRTHRESHOLDshift)
+#define  EGRTHRESHOLD_GET(x) (((x) & EGRTHRESHOLD_MASK) >> EGRTHRESHOLDshift)
+
 #define SGE_TIMER_VALUE_0_AND_1 0x10b8
 #define  TIMERVALUE0_MASK   0xffff0000U
 #define  TIMERVALUE0_SHIFT  16
@@ -184,64 +228,54 @@
 #define  TIMERVALUE1_GET(x) (((x) & TIMERVALUE1_MASK) >> TIMERVALUE1_SHIFT)
 
 #define SGE_TIMER_VALUE_2_AND_3 0x10bc
+#define  TIMERVALUE2_MASK   0xffff0000U
+#define  TIMERVALUE2_SHIFT  16
+#define  TIMERVALUE2(x)     ((x) << TIMERVALUE2_SHIFT)
+#define  TIMERVALUE2_GET(x) (((x) & TIMERVALUE2_MASK) >> TIMERVALUE2_SHIFT)
+#define  TIMERVALUE3_MASK   0x0000ffffU
+#define  TIMERVALUE3_SHIFT  0
+#define  TIMERVALUE3(x)     ((x) << TIMERVALUE3_SHIFT)
+#define  TIMERVALUE3_GET(x) (((x) & TIMERVALUE3_MASK) >> TIMERVALUE3_SHIFT)
+
 #define SGE_TIMER_VALUE_4_AND_5 0x10c0
+#define  TIMERVALUE4_MASK   0xffff0000U
+#define  TIMERVALUE4_SHIFT  16
+#define  TIMERVALUE4(x)     ((x) << TIMERVALUE4_SHIFT)
+#define  TIMERVALUE4_GET(x) (((x) & TIMERVALUE4_MASK) >> TIMERVALUE4_SHIFT)
+#define  TIMERVALUE5_MASK   0x0000ffffU
+#define  TIMERVALUE5_SHIFT  0
+#define  TIMERVALUE5(x)     ((x) << TIMERVALUE5_SHIFT)
+#define  TIMERVALUE5_GET(x) (((x) & TIMERVALUE5_MASK) >> TIMERVALUE5_SHIFT)
+
 #define SGE_DEBUG_INDEX 0x10cc
 #define SGE_DEBUG_DATA_HIGH 0x10d0
 #define SGE_DEBUG_DATA_LOW 0x10d4
 #define SGE_INGRESS_QUEUES_PER_PAGE_PF 0x10f4
 
-#define S_LP_INT_THRESH    12
-#define V_LP_INT_THRESH(x) ((x) << S_LP_INT_THRESH)
 #define S_HP_INT_THRESH    28
+#define M_HP_INT_THRESH 0xfU
 #define V_HP_INT_THRESH(x) ((x) << S_HP_INT_THRESH)
+#define M_HP_COUNT 0x7ffU
+#define S_HP_COUNT 16
+#define G_HP_COUNT(x) (((x) >> S_HP_COUNT) & M_HP_COUNT)
+#define S_LP_INT_THRESH    12
+#define M_LP_INT_THRESH 0xfU
+#define V_LP_INT_THRESH(x) ((x) << S_LP_INT_THRESH)
+#define M_LP_COUNT 0x7ffU
+#define S_LP_COUNT 0
+#define G_LP_COUNT(x) (((x) >> S_LP_COUNT) & M_LP_COUNT)
 #define A_SGE_DBFIFO_STATUS 0x10a4
 
 #define S_ENABLE_DROP    13
 #define V_ENABLE_DROP(x) ((x) << S_ENABLE_DROP)
 #define F_ENABLE_DROP    V_ENABLE_DROP(1U)
-#define A_SGE_DOORBELL_CONTROL 0x10a8
-
-#define A_SGE_CTXT_CMD 0x11fc
-#define A_SGE_DBQ_CTXT_BADDR 0x1084
-
-#define A_SGE_PF_KDOORBELL 0x0
-
-#define S_QID 15
-#define V_QID(x) ((x) << S_QID)
-
-#define S_PIDX 0
-#define V_PIDX(x) ((x) << S_PIDX)
-
-#define M_LP_COUNT 0x7ffU
-#define S_LP_COUNT 0
-#define G_LP_COUNT(x) (((x) >> S_LP_COUNT) & M_LP_COUNT)
-
-#define M_HP_COUNT 0x7ffU
-#define S_HP_COUNT 16
-#define G_HP_COUNT(x) (((x) >> S_HP_COUNT) & M_HP_COUNT)
-
-#define A_SGE_INT_ENABLE3 0x1040
-
-#define S_DBFIFO_HP_INT 8
-#define V_DBFIFO_HP_INT(x) ((x) << S_DBFIFO_HP_INT)
-#define F_DBFIFO_HP_INT V_DBFIFO_HP_INT(1U)
-
-#define S_DBFIFO_LP_INT 7
-#define V_DBFIFO_LP_INT(x) ((x) << S_DBFIFO_LP_INT)
-#define F_DBFIFO_LP_INT V_DBFIFO_LP_INT(1U)
-
 #define S_DROPPED_DB 0
 #define V_DROPPED_DB(x) ((x) << S_DROPPED_DB)
 #define F_DROPPED_DB V_DROPPED_DB(1U)
+#define A_SGE_DOORBELL_CONTROL 0x10a8
 
-#define S_ERR_DROPPED_DB 18
-#define V_ERR_DROPPED_DB(x) ((x) << S_ERR_DROPPED_DB)
-#define F_ERR_DROPPED_DB V_ERR_DROPPED_DB(1U)
-
-#define A_PCIE_MEM_ACCESS_OFFSET 0x306c
-
-#define M_HP_INT_THRESH 0xfU
-#define M_LP_INT_THRESH 0xfU
+#define A_SGE_CTXT_CMD 0x11fc
+#define A_SGE_DBQ_CTXT_BADDR 0x1084
 
 #define PCIE_PF_CLI 0x44
 #define PCIE_INT_CAUSE 0x3004
@@ -287,6 +321,8 @@
 #define  WINDOW(x)       ((x) << WINDOW_SHIFT)
 #define PCIE_MEM_ACCESS_OFFSET 0x306c
 
+#define PCIE_FW 0x30b8
+
 #define PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS 0x5908
 #define  RNPP 0x80000000U
 #define  RPCP 0x20000000U
@@ -364,7 +400,7 @@
 #define  MEM_WRAP_CLIENT_NUM_MASK   0x0000000fU
 #define  MEM_WRAP_CLIENT_NUM_SHIFT  0
 #define  MEM_WRAP_CLIENT_NUM_GET(x) (((x) & MEM_WRAP_CLIENT_NUM_MASK) >> MEM_WRAP_CLIENT_NUM_SHIFT)
-
+#define MA_PCIE_FW 0x30b8
 #define MA_PARITY_ERROR_STATUS 0x77f4
 
 #define EDC_0_BASE_ADDR 0x7900
@@ -385,6 +421,7 @@
 
 #define CIM_BOOT_CFG 0x7b00
 #define  BOOTADDR_MASK 0xffffff00U
+#define  UPCRST        0x1U
 
 #define CIM_PF_MAILBOX_DATA 0x240
 #define CIM_PF_MAILBOX_CTRL 0x280
@@ -457,6 +494,13 @@
 #define  VLANEXTENABLE_MASK  0x0000f000U
 #define  VLANEXTENABLE_SHIFT 12
 
+#define TP_GLOBAL_CONFIG 0x7d08
+#define  FIVETUPLELOOKUP_SHIFT  17
+#define  FIVETUPLELOOKUP_MASK   0x00060000U
+#define  FIVETUPLELOOKUP(x)     ((x) << FIVETUPLELOOKUP_SHIFT)
+#define  FIVETUPLELOOKUP_GET(x) (((x) & FIVETUPLELOOKUP_MASK) >> \
+				FIVETUPLELOOKUP_SHIFT)
+
 #define TP_PARA_REG2 0x7d68
 #define  MAXRXDATA_MASK    0xffff0000U
 #define  MAXRXDATA_SHIFT   16
@@ -466,8 +510,47 @@
 #define  TIMERRESOLUTION_MASK   0x00ff0000U
 #define  TIMERRESOLUTION_SHIFT  16
 #define  TIMERRESOLUTION_GET(x) (((x) & TIMERRESOLUTION_MASK) >> TIMERRESOLUTION_SHIFT)
+#define  DELAYEDACKRESOLUTION_MASK 0x000000ffU
+#define  DELAYEDACKRESOLUTION_SHIFT     0
+#define  DELAYEDACKRESOLUTION_GET(x) \
+	(((x) & DELAYEDACKRESOLUTION_MASK) >> DELAYEDACKRESOLUTION_SHIFT)
 
 #define TP_SHIFT_CNT 0x7dc0
+#define  SYNSHIFTMAX_SHIFT         24
+#define  SYNSHIFTMAX_MASK          0xff000000U
+#define  SYNSHIFTMAX(x)            ((x) << SYNSHIFTMAX_SHIFT)
+#define  SYNSHIFTMAX_GET(x)        (((x) & SYNSHIFTMAX_MASK) >> \
+				   SYNSHIFTMAX_SHIFT)
+#define  RXTSHIFTMAXR1_SHIFT       20
+#define  RXTSHIFTMAXR1_MASK        0x00f00000U
+#define  RXTSHIFTMAXR1(x)          ((x) << RXTSHIFTMAXR1_SHIFT)
+#define  RXTSHIFTMAXR1_GET(x)      (((x) & RXTSHIFTMAXR1_MASK) >> \
+				   RXTSHIFTMAXR1_SHIFT)
+#define  RXTSHIFTMAXR2_SHIFT       16
+#define  RXTSHIFTMAXR2_MASK        0x000f0000U
+#define  RXTSHIFTMAXR2(x)          ((x) << RXTSHIFTMAXR2_SHIFT)
+#define  RXTSHIFTMAXR2_GET(x)      (((x) & RXTSHIFTMAXR2_MASK) >> \
+				   RXTSHIFTMAXR2_SHIFT)
+#define  PERSHIFTBACKOFFMAX_SHIFT  12
+#define  PERSHIFTBACKOFFMAX_MASK   0x0000f000U
+#define  PERSHIFTBACKOFFMAX(x)     ((x) << PERSHIFTBACKOFFMAX_SHIFT)
+#define  PERSHIFTBACKOFFMAX_GET(x) (((x) & PERSHIFTBACKOFFMAX_MASK) >> \
+				   PERSHIFTBACKOFFMAX_SHIFT)
+#define  PERSHIFTMAX_SHIFT         8
+#define  PERSHIFTMAX_MASK          0x00000f00U
+#define  PERSHIFTMAX(x)            ((x) << PERSHIFTMAX_SHIFT)
+#define  PERSHIFTMAX_GET(x)        (((x) & PERSHIFTMAX_MASK) >> \
+				   PERSHIFTMAX_SHIFT)
+#define  KEEPALIVEMAXR1_SHIFT      4
+#define  KEEPALIVEMAXR1_MASK       0x000000f0U
+#define  KEEPALIVEMAXR1(x)         ((x) << KEEPALIVEMAXR1_SHIFT)
+#define  KEEPALIVEMAXR1_GET(x)     (((x) & KEEPALIVEMAXR1_MASK) >> \
+				   KEEPALIVEMAXR1_SHIFT)
+#define KEEPALIVEMAXR2_SHIFT       0
+#define KEEPALIVEMAXR2_MASK        0x0000000fU
+#define KEEPALIVEMAXR2(x)          ((x) << KEEPALIVEMAXR2_SHIFT)
+#define KEEPALIVEMAXR2_GET(x)      (((x) & KEEPALIVEMAXR2_MASK) >> \
+				   KEEPALIVEMAXR2_SHIFT)
 
 #define TP_CCTRL_TABLE 0x7ddc
 #define TP_MTU_TABLE 0x7de4
@@ -501,6 +584,20 @@
 #define TP_INT_CAUSE 0x7e74
 #define  FLMTXFLSTEMPTY 0x40000000U
 
+#define TP_VLAN_PRI_MAP 0x140
+#define  FRAGMENTATION_SHIFT 9
+#define  FRAGMENTATION_MASK  0x00000200U
+#define  MPSHITTYPE_MASK     0x00000100U
+#define  MACMATCH_MASK       0x00000080U
+#define  ETHERTYPE_MASK      0x00000040U
+#define  PROTOCOL_MASK       0x00000020U
+#define  TOS_MASK            0x00000010U
+#define  VLAN_MASK           0x00000008U
+#define  VNIC_ID_MASK        0x00000004U
+#define  PORT_MASK           0x00000002U
+#define  FCOE_SHIFT          0
+#define  FCOE_MASK           0x00000001U
+
 #define TP_INGRESS_CONFIG 0x141
 #define  VNIC                0x00000800U
 #define  CSUM_HAS_PSEUDO_HDR 0x00000400U
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index ad53f796b57..a6364632b49 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -79,6 +79,8 @@ struct fw_wr_hdr {
 #define FW_WR_FLOWID(x)	((x) << 8)
 #define FW_WR_LEN16(x)	((x) << 0)
 
+#define HW_TPL_FR_MT_PR_IV_P_FC         0X32B
+
 struct fw_ulptx_wr {
 	__be32 op_to_compl;
 	__be32 flowid_len16;
@@ -155,6 +157,17 @@ struct fw_eth_tx_pkt_vm_wr {
 
 #define FW_CMD_MAX_TIMEOUT 3000
 
+/*
+ * If a host driver does a HELLO and discovers that there's already a MASTER
+ * selected, we may have to wait for that MASTER to finish issuing RESET,
+ * configuration and INITIALIZE commands.  Also, there's a possibility that
+ * our own HELLO may get lost if it happens right as the MASTER is issuign a
+ * RESET command, so we need to be willing to make a few retries of our HELLO.
+ */
+#define FW_CMD_HELLO_TIMEOUT	(3 * FW_CMD_MAX_TIMEOUT)
+#define FW_CMD_HELLO_RETRIES	3
+
+
 enum fw_cmd_opcodes {
 	FW_LDST_CMD                    = 0x01,
 	FW_RESET_CMD                   = 0x03,
@@ -304,7 +317,17 @@ struct fw_reset_cmd {
 	__be32 op_to_write;
 	__be32 retval_len16;
 	__be32 val;
-	__be32 r3;
+	__be32 halt_pkd;
+};
+
+#define FW_RESET_CMD_HALT_SHIFT    31
+#define FW_RESET_CMD_HALT_MASK     0x1
+#define FW_RESET_CMD_HALT(x)       ((x) << FW_RESET_CMD_HALT_SHIFT)
+#define FW_RESET_CMD_HALT_GET(x)  \
+	(((x) >> FW_RESET_CMD_HALT_SHIFT) & FW_RESET_CMD_HALT_MASK)
+
+enum fw_hellow_cmd {
+	fw_hello_cmd_stage_os		= 0x0
 };
 
 struct fw_hello_cmd {
@@ -315,8 +338,14 @@ struct fw_hello_cmd {
 #define FW_HELLO_CMD_INIT	    (1U << 30)
 #define FW_HELLO_CMD_MASTERDIS(x)   ((x) << 29)
 #define FW_HELLO_CMD_MASTERFORCE(x) ((x) << 28)
-#define FW_HELLO_CMD_MBMASTER(x)    ((x) << 24)
+#define FW_HELLO_CMD_MBMASTER_MASK   0xfU
+#define FW_HELLO_CMD_MBMASTER_SHIFT  24
+#define FW_HELLO_CMD_MBMASTER(x)     ((x) << FW_HELLO_CMD_MBMASTER_SHIFT)
+#define FW_HELLO_CMD_MBMASTER_GET(x) \
+	(((x) >> FW_HELLO_CMD_MBMASTER_SHIFT) & FW_HELLO_CMD_MBMASTER_MASK)
 #define FW_HELLO_CMD_MBASYNCNOT(x)  ((x) << 20)
+#define FW_HELLO_CMD_STAGE(x)       ((x) << 17)
+#define FW_HELLO_CMD_CLEARINIT      (1U << 16)
 	__be32 fwrev;
 };
 
@@ -401,6 +430,14 @@ enum fw_caps_config_fcoe {
 	FW_CAPS_CONFIG_FCOE_TARGET	= 0x00000002,
 };
 
+enum fw_memtype_cf {
+	FW_MEMTYPE_CF_EDC0		= 0x0,
+	FW_MEMTYPE_CF_EDC1		= 0x1,
+	FW_MEMTYPE_CF_EXTMEM		= 0x2,
+	FW_MEMTYPE_CF_FLASH		= 0x4,
+	FW_MEMTYPE_CF_INTERNAL		= 0x5,
+};
+
 struct fw_caps_config_cmd {
 	__be32 op_to_write;
 	__be32 retval_len16;
@@ -416,10 +453,15 @@ struct fw_caps_config_cmd {
 	__be16 r4;
 	__be16 iscsicaps;
 	__be16 fcoecaps;
-	__be32 r5;
-	__be64 r6;
+	__be32 cfcsum;
+	__be32 finiver;
+	__be32 finicsum;
 };
 
+#define FW_CAPS_CONFIG_CMD_CFVALID          (1U << 27)
+#define FW_CAPS_CONFIG_CMD_MEMTYPE_CF(x)    ((x) << 24)
+#define FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(x) ((x) << 16)
+
 /*
  * params command mnemonics
  */
@@ -451,6 +493,7 @@ enum fw_params_param_dev {
 	FW_PARAMS_PARAM_DEV_INTVER_FCOE = 0x0A,
 	FW_PARAMS_PARAM_DEV_FWREV = 0x0B,
 	FW_PARAMS_PARAM_DEV_TPREV = 0x0C,
+	FW_PARAMS_PARAM_DEV_CF = 0x0D,
 };
 
 /*
@@ -492,6 +535,8 @@ enum fw_params_param_pfvf {
 	FW_PARAMS_PARAM_PFVF_IQFLINT_END = 0x2A,
 	FW_PARAMS_PARAM_PFVF_EQ_START	= 0x2B,
 	FW_PARAMS_PARAM_PFVF_EQ_END	= 0x2C,
+	FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_START = 0x2D,
+	FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_END = 0x2E
 };
 
 /*
@@ -507,8 +552,16 @@ enum fw_params_param_dmaq {
 
 #define FW_PARAMS_MNEM(x)      ((x) << 24)
 #define FW_PARAMS_PARAM_X(x)   ((x) << 16)
-#define FW_PARAMS_PARAM_Y(x)   ((x) << 8)
-#define FW_PARAMS_PARAM_Z(x)   ((x) << 0)
+#define FW_PARAMS_PARAM_Y_SHIFT  8
+#define FW_PARAMS_PARAM_Y_MASK   0xffU
+#define FW_PARAMS_PARAM_Y(x)     ((x) << FW_PARAMS_PARAM_Y_SHIFT)
+#define FW_PARAMS_PARAM_Y_GET(x) (((x) >> FW_PARAMS_PARAM_Y_SHIFT) &\
+		FW_PARAMS_PARAM_Y_MASK)
+#define FW_PARAMS_PARAM_Z_SHIFT  0
+#define FW_PARAMS_PARAM_Z_MASK   0xffu
+#define FW_PARAMS_PARAM_Z(x)     ((x) << FW_PARAMS_PARAM_Z_SHIFT)
+#define FW_PARAMS_PARAM_Z_GET(x) (((x) >> FW_PARAMS_PARAM_Z_SHIFT) &\
+		FW_PARAMS_PARAM_Z_MASK)
 #define FW_PARAMS_PARAM_XYZ(x) ((x) << 0)
 #define FW_PARAMS_PARAM_YZ(x)  ((x) << 0)
 
@@ -1599,6 +1652,16 @@ struct fw_debug_cmd {
 	} u;
 };
 
+#define FW_PCIE_FW_ERR           (1U << 31)
+#define FW_PCIE_FW_INIT          (1U << 30)
+#define FW_PCIE_FW_HALT          (1U << 29)
+#define FW_PCIE_FW_MASTER_VLD    (1U << 15)
+#define FW_PCIE_FW_MASTER_MASK   0x7
+#define FW_PCIE_FW_MASTER_SHIFT  12
+#define FW_PCIE_FW_MASTER(x)     ((x) << FW_PCIE_FW_MASTER_SHIFT)
+#define FW_PCIE_FW_MASTER_GET(x) (((x) >> FW_PCIE_FW_MASTER_SHIFT) & \
+				 FW_PCIE_FW_MASTER_MASK)
+
 struct fw_hdr {
 	u8 ver;
 	u8 reserved1;
@@ -1613,7 +1676,11 @@ struct fw_hdr {
 	u8 intfver_iscsi;
 	u8 intfver_fcoe;
 	u8 reserved2;
-	__be32  reserved3[27];
+	__u32   reserved3;
+	__u32   reserved4;
+	__u32   reserved5;
+	__be32  flags;
+	__be32  reserved6[23];
 };
 
 #define FW_HDR_FW_VER_MAJOR_GET(x) (((x) >> 24) & 0xff)
@@ -1621,18 +1688,8 @@ struct fw_hdr {
 #define FW_HDR_FW_VER_MICRO_GET(x) (((x) >> 8) & 0xff)
 #define FW_HDR_FW_VER_BUILD_GET(x) (((x) >> 0) & 0xff)
 
-#define S_FW_CMD_OP 24
-#define V_FW_CMD_OP(x) ((x) << S_FW_CMD_OP)
-
-#define S_FW_CMD_REQUEST 23
-#define V_FW_CMD_REQUEST(x) ((x) << S_FW_CMD_REQUEST)
-#define F_FW_CMD_REQUEST V_FW_CMD_REQUEST(1U)
-
-#define S_FW_CMD_WRITE 21
-#define V_FW_CMD_WRITE(x) ((x) << S_FW_CMD_WRITE)
-#define F_FW_CMD_WRITE V_FW_CMD_WRITE(1U)
-
-#define S_FW_LDST_CMD_ADDRSPACE 0
-#define V_FW_LDST_CMD_ADDRSPACE(x) ((x) << S_FW_LDST_CMD_ADDRSPACE)
+enum fw_hdr_flags {
+	FW_HDR_FLAGS_RESET_HALT = 0x00000001,
+};
 
 #endif /* _T4FW_INTERFACE_H_ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 8877fbfefb6..f16745f4b36 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -2421,7 +2421,7 @@ int t4vf_sge_init(struct adapter *adapter)
 			fl0, fl1);
 		return -EINVAL;
 	}
-	if ((sge_params->sge_control & RXPKTCPLMODE) == 0) {
+	if ((sge_params->sge_control & RXPKTCPLMODE_MASK) == 0) {
 		dev_err(adapter->pdev_dev, "bad SGE CPL MODE\n");
 		return -EINVAL;
 	}
@@ -2431,7 +2431,8 @@ int t4vf_sge_init(struct adapter *adapter)
 	 */
 	if (fl1)
 		FL_PG_ORDER = ilog2(fl1) - PAGE_SHIFT;
-	STAT_LEN = ((sge_params->sge_control & EGRSTATUSPAGESIZE) ? 128 : 64);
+	STAT_LEN = ((sge_params->sge_control & EGRSTATUSPAGESIZE_MASK)
+		    ? 128 : 64);
 	PKTSHIFT = PKTSHIFT_GET(sge_params->sge_control);
 	FL_ALIGN = 1 << (INGPADBOUNDARY_GET(sge_params->sge_control) +
 			 SGE_INGPADBOUNDARY_SHIFT);
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index 845b2020f29..13844695778 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -1243,6 +1243,7 @@ static void set_multicast_list(struct net_device *dev)
 {
 	struct net_local *lp = netdev_priv(dev);
 	unsigned long flags;
+	u16 cfg;
 
 	spin_lock_irqsave(&lp->lock, flags);
 	if (dev->flags & IFF_PROMISC)
@@ -1260,11 +1261,10 @@ static void set_multicast_list(struct net_device *dev)
 	/* in promiscuous mode, we accept errored packets,
 	 * so we have to enable interrupts on them also
 	 */
-	writereg(dev, PP_RxCFG,
-		 (lp->curr_rx_cfg |
-		  (lp->rx_mode == RX_ALL_ACCEPT)
-		  ? (RX_CRC_ERROR_ENBL | RX_RUNT_ENBL | RX_EXTRA_DATA_ENBL)
-		  : 0));
+	cfg = lp->curr_rx_cfg;
+	if (lp->rx_mode == RX_ALL_ACCEPT)
+		cfg |= RX_CRC_ERROR_ENBL | RX_RUNT_ENBL | RX_EXTRA_DATA_ENBL;
+	writereg(dev, PP_RxCFG, cfg);
 	spin_unlock_irqrestore(&lp->lock, flags);
 }
 
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index d266c86a53f..cf4c05bdf5f 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -110,6 +110,7 @@ static inline char *nic_name(struct pci_dev *pdev)
 #define MAX_RX_POST		BE_NAPI_WEIGHT /* Frags posted at a time */
 #define RX_FRAGS_REFILL_WM	(RX_Q_LEN - MAX_RX_POST)
 
+#define MAX_VFS			30 /* Max VFs supported by BE3 FW */
 #define FW_VER_LEN		32
 
 struct be_dma_mem {
@@ -336,7 +337,6 @@ struct phy_info {
 	u16 auto_speeds_supported;
 	u16 fixed_speeds_supported;
 	int link_speed;
-	int forced_port_speed;
 	u32 dac_cable_len;
 	u32 advertising;
 	u32 supported;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 7fac97b4bb5..af60bb26e33 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -120,7 +120,7 @@ static int be_mcc_compl_process(struct be_adapter *adapter,
 
 		if (compl_status == MCC_STATUS_UNAUTHORIZED_REQUEST) {
 			dev_warn(&adapter->pdev->dev,
-				 "opcode %d-%d is not permitted\n",
+				 "VF is not privileged to issue opcode %d-%d\n",
 				 opcode, subsystem);
 		} else {
 			extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
@@ -165,14 +165,13 @@ static void be_async_grp5_cos_priority_process(struct be_adapter *adapter,
 	}
 }
 
-/* Grp5 QOS Speed evt */
+/* Grp5 QOS Speed evt: qos_link_speed is in units of 10 Mbps */
 static void be_async_grp5_qos_speed_process(struct be_adapter *adapter,
 		struct be_async_event_grp5_qos_link_speed *evt)
 {
-	if (evt->physical_port == adapter->port_num) {
-		/* qos_link_speed is in units of 10 Mbps */
-		adapter->phy.link_speed = evt->qos_link_speed * 10;
-	}
+	if (adapter->phy.link_speed >= 0 &&
+	    evt->physical_port == adapter->port_num)
+		adapter->phy.link_speed = le16_to_cpu(evt->qos_link_speed) * 10;
 }
 
 /*Grp5 PVID evt*/
@@ -259,7 +258,7 @@ int be_process_mcc(struct be_adapter *adapter)
 	int num = 0, status = 0;
 	struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
 
-	spin_lock_bh(&adapter->mcc_cq_lock);
+	spin_lock(&adapter->mcc_cq_lock);
 	while ((compl = be_mcc_compl_get(adapter))) {
 		if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
 			/* Interpret flags as an async trailer */
@@ -280,7 +279,7 @@ int be_process_mcc(struct be_adapter *adapter)
 	if (num)
 		be_cq_notify(adapter, mcc_obj->cq.id, mcc_obj->rearm_cq, num);
 
-	spin_unlock_bh(&adapter->mcc_cq_lock);
+	spin_unlock(&adapter->mcc_cq_lock);
 	return status;
 }
 
@@ -295,7 +294,9 @@ static int be_mcc_wait_compl(struct be_adapter *adapter)
 		if (be_error(adapter))
 			return -EIO;
 
+		local_bh_disable();
 		status = be_process_mcc(adapter);
+		local_bh_enable();
 
 		if (atomic_read(&mcc_obj->q.used) == 0)
 			break;
@@ -715,7 +716,7 @@ int be_cmd_eq_create(struct be_adapter *adapter,
 
 /* Use MCC */
 int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
-			u8 type, bool permanent, u32 if_handle, u32 pmac_id)
+			  bool permanent, u32 if_handle, u32 pmac_id)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_mac_query *req;
@@ -732,7 +733,7 @@ int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
 
 	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 		OPCODE_COMMON_NTWK_MAC_QUERY, sizeof(*req), wrb, NULL);
-	req->type = type;
+	req->type = MAC_ADDRESS_TYPE_NETWORK;
 	if (permanent) {
 		req->permanent = 1;
 	} else {
@@ -1324,9 +1325,28 @@ err:
 	return status;
 }
 
-/* Uses synchronous mcc */
-int be_cmd_link_status_query(struct be_adapter *adapter, u8 *mac_speed,
-			     u16 *link_speed, u8 *link_status, u32 dom)
+static int be_mac_to_link_speed(int mac_speed)
+{
+	switch (mac_speed) {
+	case PHY_LINK_SPEED_ZERO:
+		return 0;
+	case PHY_LINK_SPEED_10MBPS:
+		return 10;
+	case PHY_LINK_SPEED_100MBPS:
+		return 100;
+	case PHY_LINK_SPEED_1GBPS:
+		return 1000;
+	case PHY_LINK_SPEED_10GBPS:
+		return 10000;
+	}
+	return 0;
+}
+
+/* Uses synchronous mcc
+ * Returns link_speed in Mbps
+ */
+int be_cmd_link_status_query(struct be_adapter *adapter, u16 *link_speed,
+			     u8 *link_status, u32 dom)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_link_status *req;
@@ -1355,11 +1375,13 @@ int be_cmd_link_status_query(struct be_adapter *adapter, u8 *mac_speed,
 	status = be_mcc_notify_wait(adapter);
 	if (!status) {
 		struct be_cmd_resp_link_status *resp = embedded_payload(wrb);
-		if (resp->mac_speed != PHY_LINK_SPEED_ZERO) {
-			if (link_speed)
-				*link_speed = le16_to_cpu(resp->link_speed);
-			if (mac_speed)
-				*mac_speed = resp->mac_speed;
+		if (link_speed) {
+			*link_speed = resp->link_speed ?
+				      le16_to_cpu(resp->link_speed) * 10 :
+				      be_mac_to_link_speed(resp->mac_speed);
+
+			if (!resp->logical_link_status)
+				*link_speed = 0;
 		}
 		if (link_status)
 			*link_status = resp->logical_link_status;
@@ -2403,6 +2425,9 @@ int be_cmd_req_native_mode(struct be_adapter *adapter)
 		struct be_cmd_resp_set_func_cap *resp = embedded_payload(wrb);
 		adapter->be3_native = le32_to_cpu(resp->cap_flags) &
 					CAPABILITY_BE3_NATIVE_ERX_API;
+		if (!adapter->be3_native)
+			dev_warn(&adapter->pdev->dev,
+				 "adapter not in advanced mode\n");
 	}
 err:
 	mutex_unlock(&adapter->mbox_lock);
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 250f19b5f7b..0936e21e3cf 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1687,7 +1687,7 @@ struct be_cmd_req_set_ext_fat_caps {
 extern int be_pci_fnum_get(struct be_adapter *adapter);
 extern int be_fw_wait_ready(struct be_adapter *adapter);
 extern int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
-			u8 type, bool permanent, u32 if_handle, u32 pmac_id);
+				 bool permanent, u32 if_handle, u32 pmac_id);
 extern int be_cmd_pmac_add(struct be_adapter *adapter, u8 *mac_addr,
 			u32 if_id, u32 *pmac_id, u32 domain);
 extern int be_cmd_pmac_del(struct be_adapter *adapter, u32 if_id,
@@ -1714,8 +1714,8 @@ extern int be_cmd_q_destroy(struct be_adapter *adapter, struct be_queue_info *q,
 			int type);
 extern int be_cmd_rxq_destroy(struct be_adapter *adapter,
 			struct be_queue_info *q);
-extern int be_cmd_link_status_query(struct be_adapter *adapter, u8 *mac_speed,
-				    u16 *link_speed, u8 *link_status, u32 dom);
+extern int be_cmd_link_status_query(struct be_adapter *adapter, u16 *link_speed,
+				    u8 *link_status, u32 dom);
 extern int be_cmd_reset(struct be_adapter *adapter);
 extern int be_cmd_get_stats(struct be_adapter *adapter,
 			struct be_dma_mem *nonemb_cmd);
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index c0e700653f9..8e6fb0ba6aa 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -512,28 +512,6 @@ static u32 convert_to_et_setting(u32 if_type, u32 if_speeds)
 	return val;
 }
 
-static int convert_to_et_speed(u32 be_speed)
-{
-	int et_speed = SPEED_10000;
-
-	switch (be_speed) {
-	case PHY_LINK_SPEED_10MBPS:
-		et_speed = SPEED_10;
-		break;
-	case PHY_LINK_SPEED_100MBPS:
-		et_speed = SPEED_100;
-		break;
-	case PHY_LINK_SPEED_1GBPS:
-		et_speed = SPEED_1000;
-		break;
-	case PHY_LINK_SPEED_10GBPS:
-		et_speed = SPEED_10000;
-		break;
-	}
-
-	return et_speed;
-}
-
 bool be_pause_supported(struct be_adapter *adapter)
 {
 	return (adapter->phy.interface_type == PHY_TYPE_SFP_PLUS_10GB ||
@@ -544,27 +522,16 @@ bool be_pause_supported(struct be_adapter *adapter)
 static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
-	u8 port_speed = 0;
-	u16 link_speed = 0;
 	u8 link_status;
-	u32 et_speed = 0;
+	u16 link_speed = 0;
 	int status;
 
-	if (adapter->phy.link_speed < 0 || !(netdev->flags & IFF_UP)) {
-		if (adapter->phy.forced_port_speed < 0) {
-			status = be_cmd_link_status_query(adapter, &port_speed,
-						&link_speed, &link_status, 0);
-			if (!status)
-				be_link_status_update(adapter, link_status);
-			if (link_speed)
-				et_speed = link_speed * 10;
-			else if (link_status)
-				et_speed = convert_to_et_speed(port_speed);
-		} else {
-			et_speed = adapter->phy.forced_port_speed;
-		}
-
-		ethtool_cmd_speed_set(ecmd, et_speed);
+	if (adapter->phy.link_speed < 0) {
+		status = be_cmd_link_status_query(adapter, &link_speed,
+						  &link_status, 0);
+		if (!status)
+			be_link_status_update(adapter, link_status);
+		ethtool_cmd_speed_set(ecmd, link_speed);
 
 		status = be_cmd_get_phy_info(adapter);
 		if (status)
@@ -773,8 +740,8 @@ static void
 be_self_test(struct net_device *netdev, struct ethtool_test *test, u64 *data)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
-	u8 mac_speed = 0;
-	u16 qos_link_speed = 0;
+	int status;
+	u8 link_status = 0;
 
 	memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
 
@@ -798,11 +765,11 @@ be_self_test(struct net_device *netdev, struct ethtool_test *test, u64 *data)
 		test->flags |= ETH_TEST_FL_FAILED;
 	}
 
-	if (be_cmd_link_status_query(adapter, &mac_speed,
-				     &qos_link_speed, NULL, 0) != 0) {
+	status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
+	if (status) {
 		test->flags |= ETH_TEST_FL_FAILED;
 		data[4] = -1;
-	} else if (!mac_speed) {
+	} else if (!link_status) {
 		test->flags |= ETH_TEST_FL_FAILED;
 		data[4] = 1;
 	}
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index c60de89b666..eb3f2cb3b93 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -20,6 +20,7 @@
 #include "be.h"
 #include "be_cmds.h"
 #include <asm/div64.h>
+#include <linux/aer.h>
 
 MODULE_VERSION(DRV_VER);
 MODULE_DEVICE_TABLE(pci, be_dev_ids);
@@ -240,9 +241,8 @@ static int be_mac_addr_set(struct net_device *netdev, void *p)
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 
-	status = be_cmd_mac_addr_query(adapter, current_mac,
-				MAC_ADDRESS_TYPE_NETWORK, false,
-				adapter->if_handle, 0);
+	status = be_cmd_mac_addr_query(adapter, current_mac, false,
+				       adapter->if_handle, 0);
 	if (status)
 		goto err;
 
@@ -1075,7 +1075,7 @@ static int be_set_vf_tx_rate(struct net_device *netdev,
 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
 {
 	struct pci_dev *dev, *pdev = adapter->pdev;
-	int vfs = 0, assigned_vfs = 0, pos, vf_fn;
+	int vfs = 0, assigned_vfs = 0, pos;
 	u16 offset, stride;
 
 	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
@@ -1086,9 +1086,7 @@ static int be_find_vfs(struct be_adapter *adapter, int vf_state)
 
 	dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
 	while (dev) {
-		vf_fn = (pdev->devfn + offset + stride * vfs) & 0xFFFF;
-		if (dev->is_virtfn && dev->devfn == vf_fn &&
-			dev->bus->number == pdev->bus->number) {
+		if (dev->is_virtfn && pci_physfn(dev) == pdev) {
 			vfs++;
 			if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
 				assigned_vfs++;
@@ -1896,6 +1894,8 @@ static int be_tx_qs_create(struct be_adapter *adapter)
 			return status;
 	}
 
+	dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
+		 adapter->num_tx_qs);
 	return 0;
 }
 
@@ -1946,10 +1946,9 @@ static int be_rx_cqs_create(struct be_adapter *adapter)
 			return rc;
 	}
 
-	if (adapter->num_rx_qs != MAX_RX_QS)
-		dev_info(&adapter->pdev->dev,
-			"Created only %d receive queues", adapter->num_rx_qs);
-
+	dev_info(&adapter->pdev->dev,
+		 "created %d RSS queue(s) and 1 default RX queue\n",
+		 adapter->num_rx_qs - 1);
 	return 0;
 }
 
@@ -2176,8 +2175,7 @@ static uint be_num_rss_want(struct be_adapter *adapter)
 {
 	u32 num = 0;
 	if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
-	     !sriov_want(adapter) && be_physfn(adapter) &&
-	     !be_is_mc(adapter)) {
+	     !sriov_want(adapter) && be_physfn(adapter)) {
 		num = (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
 		num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
 	}
@@ -2188,6 +2186,7 @@ static void be_msix_enable(struct be_adapter *adapter)
 {
 #define BE_MIN_MSIX_VECTORS		1
 	int i, status, num_vec, num_roce_vec = 0;
+	struct device *dev = &adapter->pdev->dev;
 
 	/* If RSS queues are not used, need a vec for default RX Q */
 	num_vec = min(be_num_rss_want(adapter), num_online_cpus());
@@ -2212,6 +2211,8 @@ static void be_msix_enable(struct be_adapter *adapter)
 				num_vec) == 0)
 			goto done;
 	}
+
+	dev_warn(dev, "MSIx enable failed\n");
 	return;
 done:
 	if (be_roce_supported(adapter)) {
@@ -2225,6 +2226,7 @@ done:
 		}
 	} else
 		adapter->num_msix_vec = num_vec;
+	dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
 	return;
 }
 
@@ -2441,8 +2443,7 @@ static int be_open(struct net_device *netdev)
 		be_eq_notify(adapter, eqo->q.id, true, false, 0);
 	}
 
-	status = be_cmd_link_status_query(adapter, NULL, NULL,
-					  &link_status, 0);
+	status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
 	if (!status)
 		be_link_status_update(adapter, link_status);
 
@@ -2646,8 +2647,8 @@ static int be_vf_setup(struct be_adapter *adapter)
 	}
 
 	for_all_vfs(adapter, vf_cfg, vf) {
-		status = be_cmd_link_status_query(adapter, NULL, &lnk_speed,
-						  NULL, vf + 1);
+		lnk_speed = 1000;
+		status = be_cmd_set_qos(adapter, lnk_speed, vf + 1);
 		if (status)
 			goto err;
 		vf_cfg->tx_rate = lnk_speed * 10;
@@ -2671,7 +2672,6 @@ static void be_setup_init(struct be_adapter *adapter)
 	adapter->be3_native = false;
 	adapter->promiscuous = false;
 	adapter->eq_next_idx = 0;
-	adapter->phy.forced_port_speed = -1;
 }
 
 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
@@ -2693,21 +2693,16 @@ static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
 		status = be_cmd_get_mac_from_list(adapter, mac,
 						  active_mac, pmac_id, 0);
 		if (*active_mac) {
-			status = be_cmd_mac_addr_query(adapter, mac,
-						       MAC_ADDRESS_TYPE_NETWORK,
-						       false, if_handle,
-						       *pmac_id);
+			status = be_cmd_mac_addr_query(adapter, mac, false,
+						       if_handle, *pmac_id);
 		}
 	} else if (be_physfn(adapter)) {
 		/* For BE3, for PF get permanent MAC */
-		status = be_cmd_mac_addr_query(adapter, mac,
-					       MAC_ADDRESS_TYPE_NETWORK, true,
-					       0, 0);
+		status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
 		*active_mac = false;
 	} else {
 		/* For BE3, for VF get soft MAC assigned by PF*/
-		status = be_cmd_mac_addr_query(adapter, mac,
-					       MAC_ADDRESS_TYPE_NETWORK, false,
+		status = be_cmd_mac_addr_query(adapter, mac, false,
 					       if_handle, 0);
 		*active_mac = true;
 	}
@@ -2724,6 +2719,8 @@ static int be_get_config(struct be_adapter *adapter)
 	if (pos) {
 		pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
 				     &dev_num_vfs);
+		if (!lancer_chip(adapter))
+			dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
 		adapter->dev_num_vfs = dev_num_vfs;
 	}
 	return 0;
@@ -3437,6 +3434,7 @@ static void be_ctrl_cleanup(struct be_adapter *adapter)
 	if (mem->va)
 		dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 				  mem->dma);
+	kfree(adapter->pmac_id);
 }
 
 static int be_ctrl_init(struct be_adapter *adapter)
@@ -3473,6 +3471,12 @@ static int be_ctrl_init(struct be_adapter *adapter)
 	}
 	memset(rx_filter->va, 0, rx_filter->size);
 
+	/* primary mac needs 1 pmac entry */
+	adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
+				   sizeof(*adapter->pmac_id), GFP_KERNEL);
+	if (!adapter->pmac_id)
+		return -ENOMEM;
+
 	mutex_init(&adapter->mbox_lock);
 	spin_lock_init(&adapter->mcc_lock);
 	spin_lock_init(&adapter->mcc_cq_lock);
@@ -3543,6 +3547,8 @@ static void __devexit be_remove(struct pci_dev *pdev)
 
 	be_ctrl_cleanup(adapter);
 
+	pci_disable_pcie_error_reporting(pdev);
+
 	pci_set_drvdata(pdev, NULL);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
@@ -3609,12 +3615,6 @@ static int be_get_initial_config(struct be_adapter *adapter)
 	else
 		adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
 
-	/* primary mac needs 1 pmac entry */
-	adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
-				  sizeof(u32), GFP_KERNEL);
-	if (!adapter->pmac_id)
-		return -ENOMEM;
-
 	status = be_cmd_get_cntl_attributes(adapter);
 	if (status)
 		return status;
@@ -3763,7 +3763,9 @@ static void be_worker(struct work_struct *work)
 	/* when interrupts are not yet enabled, just reap any pending
 	* mcc completions */
 	if (!netif_running(adapter->netdev)) {
+		local_bh_disable();
 		be_process_mcc(adapter);
+		local_bh_enable();
 		goto reschedule;
 	}
 
@@ -3798,6 +3800,23 @@ static bool be_reset_required(struct be_adapter *adapter)
 	return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
 }
 
+static char *mc_name(struct be_adapter *adapter)
+{
+	if (adapter->function_mode & FLEX10_MODE)
+		return "FLEX10";
+	else if (adapter->function_mode & VNIC_MODE)
+		return "vNIC";
+	else if (adapter->function_mode & UMC_ENABLED)
+		return "UMC";
+	else
+		return "";
+}
+
+static inline char *func_name(struct be_adapter *adapter)
+{
+	return be_physfn(adapter) ? "PF" : "VF";
+}
+
 static int __devinit be_probe(struct pci_dev *pdev,
 			const struct pci_device_id *pdev_id)
 {
@@ -3842,6 +3861,10 @@ static int __devinit be_probe(struct pci_dev *pdev,
 		}
 	}
 
+	status = pci_enable_pcie_error_reporting(pdev);
+	if (status)
+		dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
+
 	status = be_ctrl_init(adapter);
 	if (status)
 		goto free_netdev;
@@ -3884,7 +3907,7 @@ static int __devinit be_probe(struct pci_dev *pdev,
 
 	status = be_setup(adapter);
 	if (status)
-		goto msix_disable;
+		goto stats_clean;
 
 	be_netdev_init(netdev);
 	status = register_netdev(netdev);
@@ -3898,15 +3921,13 @@ static int __devinit be_probe(struct pci_dev *pdev,
 
 	be_cmd_query_port_name(adapter, &port_name);
 
-	dev_info(&pdev->dev, "%s: %s port %c\n", netdev->name, nic_name(pdev),
-		 port_name);
+	dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
+		 func_name(adapter), mc_name(adapter), port_name);
 
 	return 0;
 
 unsetup:
 	be_clear(adapter);
-msix_disable:
-	be_msix_disable(adapter);
 stats_clean:
 	be_stats_cleanup(adapter);
 ctrl_clean:
@@ -4064,6 +4085,7 @@ static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
 	if (status)
 		return PCI_ERS_RESULT_DISCONNECT;
 
+	pci_cleanup_aer_uncorrect_error_status(pdev);
 	return PCI_ERS_RESULT_RECOVERED;
 }
 
@@ -4104,7 +4126,7 @@ err:
 	dev_err(&adapter->pdev->dev, "EEH resume failed\n");
 }
 
-static struct pci_error_handlers be_eeh_handlers = {
+static const struct pci_error_handlers be_eeh_handlers = {
 	.error_detected = be_eeh_err_detected,
 	.slot_reset = be_eeh_reset,
 	.resume = be_eeh_resume,
diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig
index 3574e1499df..feff51664dc 100644
--- a/drivers/net/ethernet/freescale/Kconfig
+++ b/drivers/net/ethernet/freescale/Kconfig
@@ -62,6 +62,13 @@ config FSL_PQ_MDIO
 	---help---
 	  This driver supports the MDIO bus used by the gianfar and UCC drivers.
 
+config FSL_XGMAC_MDIO
+	tristate "Freescale XGMAC MDIO"
+	depends on FSL_SOC
+	select PHYLIB
+	---help---
+	  This driver supports the MDIO bus on the Fman 10G Ethernet MACs.
+
 config UCC_GETH
 	tristate "Freescale QE Gigabit Ethernet"
 	depends on QUICC_ENGINE
diff --git a/drivers/net/ethernet/freescale/Makefile b/drivers/net/ethernet/freescale/Makefile
index 1752488c9ee..3d1839afff6 100644
--- a/drivers/net/ethernet/freescale/Makefile
+++ b/drivers/net/ethernet/freescale/Makefile
@@ -9,6 +9,7 @@ ifeq ($(CONFIG_FEC_MPC52xx_MDIO),y)
 endif
 obj-$(CONFIG_FS_ENET) += fs_enet/
 obj-$(CONFIG_FSL_PQ_MDIO) += fsl_pq_mdio.o
+obj-$(CONFIG_FSL_XGMAC_MDIO) += xgmac_mdio.o
 obj-$(CONFIG_GIANFAR) += gianfar_driver.o
 obj-$(CONFIG_PTP_1588_CLOCK_GIANFAR) += gianfar_ptp.o
 gianfar_driver-objs := gianfar.o \
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
index 0f2d1a71090..15145330940 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
@@ -174,8 +174,10 @@ static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev)
 
 	new_bus->phy_mask = ~0;
 	new_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
-	if (!new_bus->irq)
+	if (!new_bus->irq) {
+		ret = -ENOMEM;
 		goto out_unmap_regs;
+	}
 
 	new_bus->parent = &ofdev->dev;
 	dev_set_drvdata(&ofdev->dev, new_bus);
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
index 55bb867258e..cdf702a5948 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
@@ -137,8 +137,10 @@ static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev)
 	snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", res.start);
 
 	fec->fecp = ioremap(res.start, resource_size(&res));
-	if (!fec->fecp)
+	if (!fec->fecp) {
+		ret = -ENOMEM;
 		goto out_fec;
+	}
 
 	if (get_bus_freq) {
 		clock = get_bus_freq(ofdev->dev.of_node);
@@ -172,8 +174,10 @@ static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev)
 
 	new_bus->phy_mask = ~0;
 	new_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
-	if (!new_bus->irq)
+	if (!new_bus->irq) {
+		ret = -ENOMEM;
 		goto out_unmap_regs;
+	}
 
 	new_bus->parent = &ofdev->dev;
 	dev_set_drvdata(&ofdev->dev, new_bus);
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
index 9527b28d70d..c93a05654b4 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -19,54 +19,90 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/errno.h>
-#include <linux/unistd.h>
 #include <linux/slab.h>
-#include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
 #include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/crc32.h>
 #include <linux/mii.h>
-#include <linux/phy.h>
-#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_mdio.h>
-#include <linux/of_platform.h>
+#include <linux/of_device.h>
 
 #include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/ucc.h>
+#include <asm/ucc.h>	/* for ucc_set_qe_mux_mii_mng() */
 
 #include "gianfar.h"
-#include "fsl_pq_mdio.h"
+
+#define MIIMIND_BUSY		0x00000001
+#define MIIMIND_NOTVALID	0x00000004
+#define MIIMCFG_INIT_VALUE	0x00000007
+#define MIIMCFG_RESET		0x80000000
+
+#define MII_READ_COMMAND	0x00000001
+
+struct fsl_pq_mii {
+	u32 miimcfg;	/* MII management configuration reg */
+	u32 miimcom;	/* MII management command reg */
+	u32 miimadd;	/* MII management address reg */
+	u32 miimcon;	/* MII management control reg */
+	u32 miimstat;	/* MII management status reg */
+	u32 miimind;	/* MII management indication reg */
+};
+
+struct fsl_pq_mdio {
+	u8 res1[16];
+	u32 ieventm;	/* MDIO Interrupt event register (for etsec2)*/
+	u32 imaskm;	/* MDIO Interrupt mask register (for etsec2)*/
+	u8 res2[4];
+	u32 emapm;	/* MDIO Event mapping register (for etsec2)*/
+	u8 res3[1280];
+	struct fsl_pq_mii mii;
+	u8 res4[28];
+	u32 utbipar;	/* TBI phy address reg (only on UCC) */
+	u8 res5[2728];
+} __packed;
 
 /* Number of microseconds to wait for an MII register to respond */
 #define MII_TIMEOUT	1000
 
 struct fsl_pq_mdio_priv {
 	void __iomem *map;
-	struct fsl_pq_mdio __iomem *regs;
+	struct fsl_pq_mii __iomem *regs;
+	int irqs[PHY_MAX_ADDR];
+};
+
+/*
+ * Per-device-type data.  Each type of device tree node that we support gets
+ * one of these.
+ *
+ * @mii_offset: the offset of the MII registers within the memory map of the
+ * node.  Some nodes define only the MII registers, and some define the whole
+ * MAC (which includes the MII registers).
+ *
+ * @get_tbipa: determines the address of the TBIPA register
+ *
+ * @ucc_configure: a special function for extra QE configuration
+ */
+struct fsl_pq_mdio_data {
+	unsigned int mii_offset;	/* offset of the MII registers */
+	uint32_t __iomem * (*get_tbipa)(void __iomem *p);
+	void (*ucc_configure)(phys_addr_t start, phys_addr_t end);
 };
 
 /*
- * Write value to the PHY at mii_id at register regnum,
- * on the bus attached to the local interface, which may be different from the
- * generic mdio bus (tied to a single interface), waiting until the write is
- * done before returning. This is helpful in programming interfaces like
- * the TBI which control interfaces like onchip SERDES and are always tied to
- * the local mdio pins, which may not be the same as system mdio bus, used for
+ * Write value to the PHY at mii_id at register regnum, on the bus attached
+ * to the local interface, which may be different from the generic mdio bus
+ * (tied to a single interface), waiting until the write is done before
+ * returning. This is helpful in programming interfaces like the TBI which
+ * control interfaces like onchip SERDES and are always tied to the local
+ * mdio pins, which may not be the same as system mdio bus, used for
  * controlling the external PHYs, for example.
  */
-int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
-		int regnum, u16 value)
+static int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
+		u16 value)
 {
+	struct fsl_pq_mdio_priv *priv = bus->priv;
+	struct fsl_pq_mii __iomem *regs = priv->regs;
 	u32 status;
 
 	/* Set the PHY address and the register address we want to write */
@@ -83,20 +119,21 @@ int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
 }
 
 /*
- * Read the bus for PHY at addr mii_id, register regnum, and
- * return the value.  Clears miimcom first.  All PHY operation
- * done on the bus attached to the local interface,
- * which may be different from the generic mdio bus
- * This is helpful in programming interfaces like
- * the TBI which, in turn, control interfaces like onchip SERDES
- * and are always tied to the local mdio pins, which may not be the
+ * Read the bus for PHY at addr mii_id, register regnum, and return the value.
+ * Clears miimcom first.
+ *
+ * All PHY operation done on the bus attached to the local interface, which
+ * may be different from the generic mdio bus.  This is helpful in programming
+ * interfaces like the TBI which, in turn, control interfaces like on-chip
+ * SERDES and are always tied to the local mdio pins, which may not be the
  * same as system mdio bus, used for controlling the external PHYs, for eg.
  */
-int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs,
-		int mii_id, int regnum)
+static int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
 {
-	u16 value;
+	struct fsl_pq_mdio_priv *priv = bus->priv;
+	struct fsl_pq_mii __iomem *regs = priv->regs;
 	u32 status;
+	u16 value;
 
 	/* Set the PHY address and the register address we want to read */
 	out_be32(&regs->miimadd, (mii_id << 8) | regnum);
@@ -115,44 +152,15 @@ int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs,
 	/* Grab the value of the register from miimstat */
 	value = in_be32(&regs->miimstat);
 
+	dev_dbg(&bus->dev, "read %04x from address %x/%x\n", value, mii_id, regnum);
 	return value;
 }
 
-static struct fsl_pq_mdio __iomem *fsl_pq_mdio_get_regs(struct mii_bus *bus)
-{
-	struct fsl_pq_mdio_priv *priv = bus->priv;
-
-	return priv->regs;
-}
-
-/*
- * Write value to the PHY at mii_id at register regnum,
- * on the bus, waiting until the write is done before returning.
- */
-int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
-{
-	struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus);
-
-	/* Write to the local MII regs */
-	return fsl_pq_local_mdio_write(regs, mii_id, regnum, value);
-}
-
-/*
- * Read the bus for PHY at addr mii_id, register regnum, and
- * return the value.  Clears miimcom first.
- */
-int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
-{
-	struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus);
-
-	/* Read the local MII regs */
-	return fsl_pq_local_mdio_read(regs, mii_id, regnum);
-}
-
 /* Reset the MIIM registers, and wait for the bus to free */
 static int fsl_pq_mdio_reset(struct mii_bus *bus)
 {
-	struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus);
+	struct fsl_pq_mdio_priv *priv = bus->priv;
+	struct fsl_pq_mii __iomem *regs = priv->regs;
 	u32 status;
 
 	mutex_lock(&bus->mdio_lock);
@@ -170,234 +178,291 @@ static int fsl_pq_mdio_reset(struct mii_bus *bus)
 	mutex_unlock(&bus->mdio_lock);
 
 	if (!status) {
-		printk(KERN_ERR "%s: The MII Bus is stuck!\n",
-				bus->name);
+		dev_err(&bus->dev, "timeout waiting for MII bus\n");
 		return -EBUSY;
 	}
 
 	return 0;
 }
 
-void fsl_pq_mdio_bus_name(char *name, struct device_node *np)
+#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
+/*
+ * This is mildly evil, but so is our hardware for doing this.
+ * Also, we have to cast back to struct gfar because of
+ * definition weirdness done in gianfar.h.
+ */
+static uint32_t __iomem *get_gfar_tbipa(void __iomem *p)
 {
-	const u32 *addr;
-	u64 taddr = OF_BAD_ADDR;
-
-	addr = of_get_address(np, 0, NULL, NULL);
-	if (addr)
-		taddr = of_translate_address(np, addr);
+	struct gfar __iomem *enet_regs = p;
 
-	snprintf(name, MII_BUS_ID_SIZE, "%s@%llx", np->name,
-		(unsigned long long)taddr);
+	return &enet_regs->tbipa;
 }
-EXPORT_SYMBOL_GPL(fsl_pq_mdio_bus_name);
 
+/*
+ * Return the TBIPAR address for an eTSEC2 node
+ */
+static uint32_t __iomem *get_etsec_tbipa(void __iomem *p)
+{
+	return p;
+}
+#endif
 
-static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct device_node *np)
+#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
+/*
+ * Return the TBIPAR address for a QE MDIO node
+ */
+static uint32_t __iomem *get_ucc_tbipa(void __iomem *p)
 {
-#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
-	struct gfar __iomem *enet_regs;
+	struct fsl_pq_mdio __iomem *mdio = p;
 
-	/*
-	 * This is mildly evil, but so is our hardware for doing this.
-	 * Also, we have to cast back to struct gfar because of
-	 * definition weirdness done in gianfar.h.
-	 */
-	if(of_device_is_compatible(np, "fsl,gianfar-mdio") ||
-		of_device_is_compatible(np, "fsl,gianfar-tbi") ||
-		of_device_is_compatible(np, "gianfar")) {
-		enet_regs = (struct gfar __iomem *)regs;
-		return &enet_regs->tbipa;
-	} else if (of_device_is_compatible(np, "fsl,etsec2-mdio") ||
-			of_device_is_compatible(np, "fsl,etsec2-tbi")) {
-		return of_iomap(np, 1);
-	}
-#endif
-	return NULL;
+	return &mdio->utbipar;
 }
 
-
-static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id)
+/*
+ * Find the UCC node that controls the given MDIO node
+ *
+ * For some reason, the QE MDIO nodes are not children of the UCC devices
+ * that control them.  Therefore, we need to scan all UCC nodes looking for
+ * the one that encompases the given MDIO node.  We do this by comparing
+ * physical addresses.  The 'start' and 'end' addresses of the MDIO node are
+ * passed, and the correct UCC node will cover the entire address range.
+ *
+ * This assumes that there is only one QE MDIO node in the entire device tree.
+ */
+static void ucc_configure(phys_addr_t start, phys_addr_t end)
 {
-#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
+	static bool found_mii_master;
 	struct device_node *np = NULL;
-	int err = 0;
 
-	for_each_compatible_node(np, NULL, "ucc_geth") {
-		struct resource tempres;
+	if (found_mii_master)
+		return;
 
-		err = of_address_to_resource(np, 0, &tempres);
-		if (err)
+	for_each_compatible_node(np, NULL, "ucc_geth") {
+		struct resource res;
+		const uint32_t *iprop;
+		uint32_t id;
+		int ret;
+
+		ret = of_address_to_resource(np, 0, &res);
+		if (ret < 0) {
+			pr_debug("fsl-pq-mdio: no address range in node %s\n",
+				 np->full_name);
 			continue;
+		}
 
 		/* if our mdio regs fall within this UCC regs range */
-		if ((start >= tempres.start) && (end <= tempres.end)) {
-			/* Find the id of the UCC */
-			const u32 *id;
-
-			id = of_get_property(np, "cell-index", NULL);
-			if (!id) {
-				id = of_get_property(np, "device-id", NULL);
-				if (!id)
-					continue;
+		if ((start < res.start) || (end > res.end))
+			continue;
+
+		iprop = of_get_property(np, "cell-index", NULL);
+		if (!iprop) {
+			iprop = of_get_property(np, "device-id", NULL);
+			if (!iprop) {
+				pr_debug("fsl-pq-mdio: no UCC ID in node %s\n",
+					 np->full_name);
+				continue;
 			}
+		}
 
-			*ucc_id = *id;
+		id = be32_to_cpup(iprop);
 
-			return 0;
+		/*
+		 * cell-index and device-id for QE nodes are
+		 * numbered from 1, not 0.
+		 */
+		if (ucc_set_qe_mux_mii_mng(id - 1) < 0) {
+			pr_debug("fsl-pq-mdio: invalid UCC ID in node %s\n",
+				 np->full_name);
+			continue;
 		}
+
+		pr_debug("fsl-pq-mdio: setting node UCC%u to MII master\n", id);
+		found_mii_master = true;
 	}
+}
 
-	if (err)
-		return err;
-	else
-		return -EINVAL;
-#else
-	return -ENODEV;
 #endif
-}
 
-static int fsl_pq_mdio_probe(struct platform_device *ofdev)
+static struct of_device_id fsl_pq_mdio_match[] = {
+#if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE)
+	{
+		.compatible = "fsl,gianfar-tbi",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = 0,
+			.get_tbipa = get_gfar_tbipa,
+		},
+	},
+	{
+		.compatible = "fsl,gianfar-mdio",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = 0,
+			.get_tbipa = get_gfar_tbipa,
+		},
+	},
+	{
+		.type = "mdio",
+		.compatible = "gianfar",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = offsetof(struct fsl_pq_mdio, mii),
+			.get_tbipa = get_gfar_tbipa,
+		},
+	},
+	{
+		.compatible = "fsl,etsec2-tbi",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = offsetof(struct fsl_pq_mdio, mii),
+			.get_tbipa = get_etsec_tbipa,
+		},
+	},
+	{
+		.compatible = "fsl,etsec2-mdio",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = offsetof(struct fsl_pq_mdio, mii),
+			.get_tbipa = get_etsec_tbipa,
+		},
+	},
+#endif
+#if defined(CONFIG_UCC_GETH) || defined(CONFIG_UCC_GETH_MODULE)
+	{
+		.compatible = "fsl,ucc-mdio",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = 0,
+			.get_tbipa = get_ucc_tbipa,
+			.ucc_configure = ucc_configure,
+		},
+	},
+	{
+		/* Legacy UCC MDIO node */
+		.type = "mdio",
+		.compatible = "ucc_geth_phy",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = 0,
+			.get_tbipa = get_ucc_tbipa,
+			.ucc_configure = ucc_configure,
+		},
+	},
+#endif
+	/* No Kconfig option for Fman support yet */
+	{
+		.compatible = "fsl,fman-mdio",
+		.data = &(struct fsl_pq_mdio_data) {
+			.mii_offset = 0,
+			/* Fman TBI operations are handled elsewhere */
+		},
+	},
+
+	{},
+};
+MODULE_DEVICE_TABLE(of, fsl_pq_mdio_match);
+
+static int fsl_pq_mdio_probe(struct platform_device *pdev)
 {
-	struct device_node *np = ofdev->dev.of_node;
+	const struct of_device_id *id =
+		of_match_device(fsl_pq_mdio_match, &pdev->dev);
+	const struct fsl_pq_mdio_data *data = id->data;
+	struct device_node *np = pdev->dev.of_node;
+	struct resource res;
 	struct device_node *tbi;
 	struct fsl_pq_mdio_priv *priv;
-	struct fsl_pq_mdio __iomem *regs = NULL;
-	void __iomem *map;
-	u32 __iomem *tbipa;
 	struct mii_bus *new_bus;
-	int tbiaddr = -1;
-	const u32 *addrp;
-	u64 addr = 0, size = 0;
 	int err;
 
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	dev_dbg(&pdev->dev, "found %s compatible node\n", id->compatible);
 
-	new_bus = mdiobus_alloc();
-	if (!new_bus) {
-		err = -ENOMEM;
-		goto err_free_priv;
-	}
+	new_bus = mdiobus_alloc_size(sizeof(*priv));
+	if (!new_bus)
+		return -ENOMEM;
 
+	priv = new_bus->priv;
 	new_bus->name = "Freescale PowerQUICC MII Bus",
-	new_bus->read = &fsl_pq_mdio_read,
-	new_bus->write = &fsl_pq_mdio_write,
-	new_bus->reset = &fsl_pq_mdio_reset,
-	new_bus->priv = priv;
-	fsl_pq_mdio_bus_name(new_bus->id, np);
-
-	addrp = of_get_address(np, 0, &size, NULL);
-	if (!addrp) {
-		err = -EINVAL;
-		goto err_free_bus;
+	new_bus->read = &fsl_pq_mdio_read;
+	new_bus->write = &fsl_pq_mdio_write;
+	new_bus->reset = &fsl_pq_mdio_reset;
+	new_bus->irq = priv->irqs;
+
+	err = of_address_to_resource(np, 0, &res);
+	if (err < 0) {
+		dev_err(&pdev->dev, "could not obtain address information\n");
+		goto error;
 	}
 
-	/* Set the PHY base address */
-	addr = of_translate_address(np, addrp);
-	if (addr == OF_BAD_ADDR) {
-		err = -EINVAL;
-		goto err_free_bus;
-	}
+	snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s@%llx", np->name,
+		(unsigned long long)res.start);
 
-	map = ioremap(addr, size);
-	if (!map) {
+	priv->map = of_iomap(np, 0);
+	if (!priv->map) {
 		err = -ENOMEM;
-		goto err_free_bus;
+		goto error;
 	}
-	priv->map = map;
-
-	if (of_device_is_compatible(np, "fsl,gianfar-mdio") ||
-			of_device_is_compatible(np, "fsl,gianfar-tbi") ||
-			of_device_is_compatible(np, "fsl,ucc-mdio") ||
-			of_device_is_compatible(np, "ucc_geth_phy"))
-		map -= offsetof(struct fsl_pq_mdio, miimcfg);
-	regs = map;
-	priv->regs = regs;
-
-	new_bus->irq = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
 
-	if (NULL == new_bus->irq) {
-		err = -ENOMEM;
-		goto err_unmap_regs;
+	/*
+	 * Some device tree nodes represent only the MII registers, and
+	 * others represent the MAC and MII registers.  The 'mii_offset' field
+	 * contains the offset of the MII registers inside the mapped register
+	 * space.
+	 */
+	if (data->mii_offset > resource_size(&res)) {
+		dev_err(&pdev->dev, "invalid register map\n");
+		err = -EINVAL;
+		goto error;
 	}
+	priv->regs = priv->map + data->mii_offset;
 
-	new_bus->parent = &ofdev->dev;
-	dev_set_drvdata(&ofdev->dev, new_bus);
-
-	if (of_device_is_compatible(np, "fsl,gianfar-mdio") ||
-			of_device_is_compatible(np, "fsl,gianfar-tbi") ||
-			of_device_is_compatible(np, "fsl,etsec2-mdio") ||
-			of_device_is_compatible(np, "fsl,etsec2-tbi") ||
-			of_device_is_compatible(np, "gianfar")) {
-		tbipa = get_gfar_tbipa(regs, np);
-		if (!tbipa) {
-			err = -EINVAL;
-			goto err_free_irqs;
-		}
-	} else if (of_device_is_compatible(np, "fsl,ucc-mdio") ||
-			of_device_is_compatible(np, "ucc_geth_phy")) {
-		u32 id;
-		static u32 mii_mng_master;
-
-		tbipa = &regs->utbipar;
-
-		if ((err = get_ucc_id_for_range(addr, addr + size, &id)))
-			goto err_free_irqs;
+	new_bus->parent = &pdev->dev;
+	dev_set_drvdata(&pdev->dev, new_bus);
 
-		if (!mii_mng_master) {
-			mii_mng_master = id;
-			ucc_set_qe_mux_mii_mng(id - 1);
+	if (data->get_tbipa) {
+		for_each_child_of_node(np, tbi) {
+			if (strcmp(tbi->type, "tbi-phy") == 0) {
+				dev_dbg(&pdev->dev, "found TBI PHY node %s\n",
+					strrchr(tbi->full_name, '/') + 1);
+				break;
+			}
 		}
-	} else {
-		err = -ENODEV;
-		goto err_free_irqs;
-	}
 
-	for_each_child_of_node(np, tbi) {
-		if (!strncmp(tbi->type, "tbi-phy", 8))
-			break;
-	}
+		if (tbi) {
+			const u32 *prop = of_get_property(tbi, "reg", NULL);
+			uint32_t __iomem *tbipa;
 
-	if (tbi) {
-		const u32 *prop = of_get_property(tbi, "reg", NULL);
+			if (!prop) {
+				dev_err(&pdev->dev,
+					"missing 'reg' property in node %s\n",
+					tbi->full_name);
+				err = -EBUSY;
+				goto error;
+			}
 
-		if (prop)
-			tbiaddr = *prop;
+			tbipa = data->get_tbipa(priv->map);
 
-		if (tbiaddr == -1) {
-			err = -EBUSY;
-			goto err_free_irqs;
-		} else {
-			out_be32(tbipa, tbiaddr);
+			out_be32(tbipa, be32_to_cpup(prop));
 		}
 	}
 
+	if (data->ucc_configure)
+		data->ucc_configure(res.start, res.end);
+
 	err = of_mdiobus_register(new_bus, np);
 	if (err) {
-		printk (KERN_ERR "%s: Cannot register as MDIO bus\n",
-				new_bus->name);
-		goto err_free_irqs;
+		dev_err(&pdev->dev, "cannot register %s as MDIO bus\n",
+			new_bus->name);
+		goto error;
 	}
 
 	return 0;
 
-err_free_irqs:
-	kfree(new_bus->irq);
-err_unmap_regs:
-	iounmap(priv->map);
-err_free_bus:
+error:
+	if (priv->map)
+		iounmap(priv->map);
+
 	kfree(new_bus);
-err_free_priv:
-	kfree(priv);
+
 	return err;
 }
 
 
-static int fsl_pq_mdio_remove(struct platform_device *ofdev)
+static int fsl_pq_mdio_remove(struct platform_device *pdev)
 {
-	struct device *device = &ofdev->dev;
+	struct device *device = &pdev->dev;
 	struct mii_bus *bus = dev_get_drvdata(device);
 	struct fsl_pq_mdio_priv *priv = bus->priv;
 
@@ -406,41 +471,11 @@ static int fsl_pq_mdio_remove(struct platform_device *ofdev)
 	dev_set_drvdata(device, NULL);
 
 	iounmap(priv->map);
-	bus->priv = NULL;
 	mdiobus_free(bus);
-	kfree(priv);
 
 	return 0;
 }
 
-static struct of_device_id fsl_pq_mdio_match[] = {
-	{
-		.type = "mdio",
-		.compatible = "ucc_geth_phy",
-	},
-	{
-		.type = "mdio",
-		.compatible = "gianfar",
-	},
-	{
-		.compatible = "fsl,ucc-mdio",
-	},
-	{
-		.compatible = "fsl,gianfar-tbi",
-	},
-	{
-		.compatible = "fsl,gianfar-mdio",
-	},
-	{
-		.compatible = "fsl,etsec2-tbi",
-	},
-	{
-		.compatible = "fsl,etsec2-mdio",
-	},
-	{},
-};
-MODULE_DEVICE_TABLE(of, fsl_pq_mdio_match);
-
 static struct platform_driver fsl_pq_mdio_driver = {
 	.driver = {
 		.name = "fsl-pq_mdio",
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.h b/drivers/net/ethernet/freescale/fsl_pq_mdio.h
deleted file mode 100644
index bd17a2a0139..00000000000
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Freescale PowerQUICC MDIO Driver -- MII Management Bus Implementation
- * Driver for the MDIO bus controller on Freescale PowerQUICC processors
- *
- * Author: Andy Fleming
- * Modifier: Sandeep Gopalpet
- *
- * Copyright 2002-2004, 2008-2009 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-#ifndef __FSL_PQ_MDIO_H
-#define __FSL_PQ_MDIO_H
-
-#define MIIMIND_BUSY            0x00000001
-#define MIIMIND_NOTVALID        0x00000004
-#define MIIMCFG_INIT_VALUE	0x00000007
-#define MIIMCFG_RESET           0x80000000
-
-#define MII_READ_COMMAND       0x00000001
-
-struct fsl_pq_mdio {
-	u8 res1[16];
-	u32 ieventm;	/* MDIO Interrupt event register (for etsec2)*/
-	u32 imaskm;	/* MDIO Interrupt mask register (for etsec2)*/
-	u8 res2[4];
-	u32 emapm;	/* MDIO Event mapping register (for etsec2)*/
-	u8 res3[1280];
-	u32 miimcfg;		/* MII management configuration reg */
-	u32 miimcom;		/* MII management command reg */
-	u32 miimadd;		/* MII management address reg */
-	u32 miimcon;		/* MII management control reg */
-	u32 miimstat;		/* MII management status reg */
-	u32 miimind;		/* MII management indication reg */
-	u8 reserved[28];	/* Space holder */
-	u32 utbipar;		/* TBI phy address reg (only on UCC) */
-	u8 res4[2728];
-} __packed;
-
-int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
-int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
-int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
-			  int regnum, u16 value);
-int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
-int __init fsl_pq_mdio_init(void);
-void fsl_pq_mdio_exit(void);
-void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
-#endif /* FSL_PQ_MDIO_H */
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 4605f724668..a1b52ec3b93 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -100,7 +100,6 @@
 #include <linux/of_net.h>
 
 #include "gianfar.h"
-#include "fsl_pq_mdio.h"
 
 #define TX_TIMEOUT      (1*HZ)
 
@@ -395,7 +394,13 @@ static void gfar_init_mac(struct net_device *ndev)
 	if (ndev->features & NETIF_F_IP_CSUM)
 		tctrl |= TCTRL_INIT_CSUM;
 
-	tctrl |= TCTRL_TXSCHED_PRIO;
+	if (priv->prio_sched_en)
+		tctrl |= TCTRL_TXSCHED_PRIO;
+	else {
+		tctrl |= TCTRL_TXSCHED_WRRS;
+		gfar_write(&regs->tr03wt, DEFAULT_WRRS_WEIGHT);
+		gfar_write(&regs->tr47wt, DEFAULT_WRRS_WEIGHT);
+	}
 
 	gfar_write(&regs->tctrl, tctrl);
 
@@ -1041,7 +1046,7 @@ static int gfar_probe(struct platform_device *ofdev)
 
 	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) {
 		dev->hw_features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-		dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+		dev->features |= NETIF_F_HW_VLAN_RX;
 	}
 
 	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_EXTENDED_HASH) {
@@ -1161,6 +1166,9 @@ static int gfar_probe(struct platform_device *ofdev)
 	priv->rx_filer_enable = 1;
 	/* Enable most messages by default */
 	priv->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1;
+	/* use pritority h/w tx queue scheduling for single queue devices */
+	if (priv->num_tx_queues == 1)
+		priv->prio_sched_en = 1;
 
 	/* Carrier starts down, phylib will bring it up */
 	netif_carrier_off(dev);
diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h
index 2136c7ff5e6..4141ef2ddaf 100644
--- a/drivers/net/ethernet/freescale/gianfar.h
+++ b/drivers/net/ethernet/freescale/gianfar.h
@@ -301,8 +301,16 @@ extern const char gfar_driver_version[];
 #define TCTRL_TFCPAUSE		0x00000008
 #define TCTRL_TXSCHED_MASK	0x00000006
 #define TCTRL_TXSCHED_INIT	0x00000000
+/* priority scheduling */
 #define TCTRL_TXSCHED_PRIO	0x00000002
+/* weighted round-robin scheduling (WRRS) */
 #define TCTRL_TXSCHED_WRRS	0x00000004
+/* default WRRS weight and policy setting,
+ * tailored to the tr03wt and tr47wt registers:
+ * equal weight for all Tx Qs, measured in 64byte units
+ */
+#define DEFAULT_WRRS_WEIGHT	0x18181818
+
 #define TCTRL_INIT_CSUM		(TCTRL_TUCSEN | TCTRL_IPCSEN)
 
 #define IEVENT_INIT_CLEAR	0xffffffff
@@ -1098,7 +1106,8 @@ struct gfar_private {
 		extended_hash:1,
 		bd_stash_en:1,
 		rx_filer_enable:1,
-		wol_en:1; /* Wake-on-LAN enabled */
+		wol_en:1, /* Wake-on-LAN enabled */
+		prio_sched_en:1; /* Enable priorty based Tx scheduling in Hw */
 	unsigned short padding;
 
 	/* PHY stuff */
diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c
index 8971921cc1c..ab6762caa95 100644
--- a/drivers/net/ethernet/freescale/gianfar_ethtool.c
+++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c
@@ -1773,6 +1773,7 @@ static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 }
 
 int gfar_phc_index = -1;
+EXPORT_SYMBOL(gfar_phc_index);
 
 static int gfar_get_ts_info(struct net_device *dev,
 			    struct ethtool_ts_info *info)
diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
index c08e5d40fec..b9db0e04056 100644
--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -510,12 +510,12 @@ static int gianfar_ptp_probe(struct platform_device *dev)
 
 	spin_unlock_irqrestore(&etsects->lock, flags);
 
-	etsects->clock = ptp_clock_register(&etsects->caps);
+	etsects->clock = ptp_clock_register(&etsects->caps, &dev->dev);
 	if (IS_ERR(etsects->clock)) {
 		err = PTR_ERR(etsects->clock);
 		goto no_clock;
 	}
-	gfar_phc_clock = ptp_clock_index(etsects->clock);
+	gfar_phc_index = ptp_clock_index(etsects->clock);
 
 	dev_set_drvdata(&dev->dev, etsects);
 
@@ -539,7 +539,7 @@ static int gianfar_ptp_remove(struct platform_device *dev)
 	gfar_write(&etsects->regs->tmr_temask, 0);
 	gfar_write(&etsects->regs->tmr_ctrl,   0);
 
-	gfar_phc_clock = -1;
+	gfar_phc_index = -1;
 	ptp_clock_unregister(etsects->clock);
 	iounmap(etsects->regs);
 	release_resource(etsects->rsrc);
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 21c6574c5f1..16428843922 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -42,7 +42,6 @@
 #include <asm/machdep.h>
 
 #include "ucc_geth.h"
-#include "fsl_pq_mdio.h"
 
 #undef DEBUG
 
diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
new file mode 100644
index 00000000000..1afb5ea2a98
--- /dev/null
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -0,0 +1,274 @@
+/*
+ * QorIQ 10G MDIO Controller
+ *
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * Authors: Andy Fleming <afleming@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/phy.h>
+#include <linux/mdio.h>
+#include <linux/of_platform.h>
+#include <linux/of_mdio.h>
+
+/* Number of microseconds to wait for a register to respond */
+#define TIMEOUT	1000
+
+struct tgec_mdio_controller {
+	__be32	reserved[12];
+	__be32	mdio_stat;	/* MDIO configuration and status */
+	__be32	mdio_ctl;	/* MDIO control */
+	__be32	mdio_data;	/* MDIO data */
+	__be32	mdio_addr;	/* MDIO address */
+} __packed;
+
+#define MDIO_STAT_CLKDIV(x)	(((x>>1) & 0xff) << 8)
+#define MDIO_STAT_BSY		(1 << 0)
+#define MDIO_STAT_RD_ER		(1 << 1)
+#define MDIO_CTL_DEV_ADDR(x) 	(x & 0x1f)
+#define MDIO_CTL_PORT_ADDR(x)	((x & 0x1f) << 5)
+#define MDIO_CTL_PRE_DIS	(1 << 10)
+#define MDIO_CTL_SCAN_EN	(1 << 11)
+#define MDIO_CTL_POST_INC	(1 << 14)
+#define MDIO_CTL_READ		(1 << 15)
+
+#define MDIO_DATA(x)		(x & 0xffff)
+#define MDIO_DATA_BSY		(1 << 31)
+
+/*
+ * Wait untill the MDIO bus is free
+ */
+static int xgmac_wait_until_free(struct device *dev,
+				 struct tgec_mdio_controller __iomem *regs)
+{
+	uint32_t status;
+
+	/* Wait till the bus is free */
+	status = spin_event_timeout(
+		!((in_be32(&regs->mdio_stat)) & MDIO_STAT_BSY), TIMEOUT, 0);
+	if (!status) {
+		dev_err(dev, "timeout waiting for bus to be free\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+/*
+ * Wait till the MDIO read or write operation is complete
+ */
+static int xgmac_wait_until_done(struct device *dev,
+				 struct tgec_mdio_controller __iomem *regs)
+{
+	uint32_t status;
+
+	/* Wait till the MDIO write is complete */
+	status = spin_event_timeout(
+		!((in_be32(&regs->mdio_data)) & MDIO_DATA_BSY), TIMEOUT, 0);
+	if (!status) {
+		dev_err(dev, "timeout waiting for operation to complete\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+/*
+ * Write value to the PHY for this device to the register at regnum,waiting
+ * until the write is done before it returns.  All PHY configuration has to be
+ * done through the TSEC1 MIIM regs.
+ */
+static int xgmac_mdio_write(struct mii_bus *bus, int phy_id, int regnum, u16 value)
+{
+	struct tgec_mdio_controller __iomem *regs = bus->priv;
+	uint16_t dev_addr = regnum >> 16;
+	int ret;
+
+	/* Setup the MII Mgmt clock speed */
+	out_be32(&regs->mdio_stat, MDIO_STAT_CLKDIV(100));
+
+	ret = xgmac_wait_until_free(&bus->dev, regs);
+	if (ret)
+		return ret;
+
+	/* Set the port and dev addr */
+	out_be32(&regs->mdio_ctl,
+		 MDIO_CTL_PORT_ADDR(phy_id) | MDIO_CTL_DEV_ADDR(dev_addr));
+
+	/* Set the register address */
+	out_be32(&regs->mdio_addr, regnum & 0xffff);
+
+	ret = xgmac_wait_until_free(&bus->dev, regs);
+	if (ret)
+		return ret;
+
+	/* Write the value to the register */
+	out_be32(&regs->mdio_data, MDIO_DATA(value));
+
+	ret = xgmac_wait_until_done(&bus->dev, regs);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/*
+ * Reads from register regnum in the PHY for device dev, returning the value.
+ * Clears miimcom first.  All PHY configuration has to be done through the
+ * TSEC1 MIIM regs.
+ */
+static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
+{
+	struct tgec_mdio_controller __iomem *regs = bus->priv;
+	uint16_t dev_addr = regnum >> 16;
+	uint32_t mdio_ctl;
+	uint16_t value;
+	int ret;
+
+	/* Setup the MII Mgmt clock speed */
+	out_be32(&regs->mdio_stat, MDIO_STAT_CLKDIV(100));
+
+	ret = xgmac_wait_until_free(&bus->dev, regs);
+	if (ret)
+		return ret;
+
+	/* Set the Port and Device Addrs */
+	mdio_ctl = MDIO_CTL_PORT_ADDR(phy_id) | MDIO_CTL_DEV_ADDR(dev_addr);
+	out_be32(&regs->mdio_ctl, mdio_ctl);
+
+	/* Set the register address */
+	out_be32(&regs->mdio_addr, regnum & 0xffff);
+
+	ret = xgmac_wait_until_free(&bus->dev, regs);
+	if (ret)
+		return ret;
+
+	/* Initiate the read */
+	out_be32(&regs->mdio_ctl, mdio_ctl | MDIO_CTL_READ);
+
+	ret = xgmac_wait_until_done(&bus->dev, regs);
+	if (ret)
+		return ret;
+
+	/* Return all Fs if nothing was there */
+	if (in_be32(&regs->mdio_stat) & MDIO_STAT_RD_ER) {
+		dev_err(&bus->dev, "MDIO read error\n");
+		return 0xffff;
+	}
+
+	value = in_be32(&regs->mdio_data) & 0xffff;
+	dev_dbg(&bus->dev, "read %04x\n", value);
+
+	return value;
+}
+
+/* Reset the MIIM registers, and wait for the bus to free */
+static int xgmac_mdio_reset(struct mii_bus *bus)
+{
+	struct tgec_mdio_controller __iomem *regs = bus->priv;
+	int ret;
+
+	mutex_lock(&bus->mdio_lock);
+
+	/* Setup the MII Mgmt clock speed */
+	out_be32(&regs->mdio_stat, MDIO_STAT_CLKDIV(100));
+
+	ret = xgmac_wait_until_free(&bus->dev, regs);
+
+	mutex_unlock(&bus->mdio_lock);
+
+	return ret;
+}
+
+static int __devinit xgmac_mdio_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct mii_bus *bus;
+	struct resource res;
+	int ret;
+
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret) {
+		dev_err(&pdev->dev, "could not obtain address\n");
+		return ret;
+	}
+
+	bus = mdiobus_alloc_size(PHY_MAX_ADDR * sizeof(int));
+	if (!bus)
+		return -ENOMEM;
+
+	bus->name = "Freescale XGMAC MDIO Bus";
+	bus->read = xgmac_mdio_read;
+	bus->write = xgmac_mdio_write;
+	bus->reset = xgmac_mdio_reset;
+	bus->irq = bus->priv;
+	bus->parent = &pdev->dev;
+	snprintf(bus->id, MII_BUS_ID_SIZE, "%llx", (unsigned long long)res.start);
+
+	/* Set the PHY base address */
+	bus->priv = of_iomap(np, 0);
+	if (!bus->priv) {
+		ret = -ENOMEM;
+		goto err_ioremap;
+	}
+
+	ret = of_mdiobus_register(bus, np);
+	if (ret) {
+		dev_err(&pdev->dev, "cannot register MDIO bus\n");
+		goto err_registration;
+	}
+
+	dev_set_drvdata(&pdev->dev, bus);
+
+	return 0;
+
+err_registration:
+	iounmap(bus->priv);
+
+err_ioremap:
+	mdiobus_free(bus);
+
+	return ret;
+}
+
+static int __devexit xgmac_mdio_remove(struct platform_device *pdev)
+{
+	struct mii_bus *bus = dev_get_drvdata(&pdev->dev);
+
+	mdiobus_unregister(bus);
+	iounmap(bus->priv);
+	mdiobus_free(bus);
+
+	return 0;
+}
+
+static struct of_device_id xgmac_mdio_match[] = {
+	{
+		.compatible = "fsl,fman-xmdio",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, xgmac_mdio_match);
+
+static struct platform_driver xgmac_mdio_driver = {
+	.driver = {
+		.name = "fsl-fman_xmdio",
+		.of_match_table = xgmac_mdio_match,
+	},
+	.probe = xgmac_mdio_probe,
+	.remove = xgmac_mdio_remove,
+};
+
+module_platform_driver(xgmac_mdio_driver);
+
+MODULE_DESCRIPTION("Freescale QorIQ 10G MDIO Controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/ethernet/i825xx/Kconfig b/drivers/net/ethernet/i825xx/Kconfig
index fed5080a6b6..959faf7388e 100644
--- a/drivers/net/ethernet/i825xx/Kconfig
+++ b/drivers/net/ethernet/i825xx/Kconfig
@@ -150,7 +150,7 @@ config SUN3_82586
 
 config ZNET
 	tristate "Zenith Z-Note support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && ISA_DMA_API
+	depends on EXPERIMENTAL && ISA_DMA_API && X86
 	---help---
 	  The Zenith Z-Note notebook computer has a built-in network
 	  (Ethernet) card, and this is the Linux driver for it. Note that the
diff --git a/drivers/net/ethernet/i825xx/znet.c b/drivers/net/ethernet/i825xx/znet.c
index bd1f1ef91e1..c9479e081b8 100644
--- a/drivers/net/ethernet/i825xx/znet.c
+++ b/drivers/net/ethernet/i825xx/znet.c
@@ -139,8 +139,11 @@ struct znet_private {
 /* Only one can be built-in;-> */
 static struct net_device *znet_dev;
 
+#define NETIDBLK_MAGIC		"NETIDBLK"
+#define NETIDBLK_MAGIC_SIZE	8
+
 struct netidblk {
-	char magic[8];		/* The magic number (string) "NETIDBLK" */
+	char magic[NETIDBLK_MAGIC_SIZE];	/* The magic number (string) "NETIDBLK" */
 	unsigned char netid[8]; /* The physical station address */
 	char nettype, globalopt;
 	char vendor[8];		/* The machine vendor and product name. */
@@ -373,14 +376,16 @@ static int __init znet_probe (void)
 	struct znet_private *znet;
 	struct net_device *dev;
 	char *p;
+	char *plast = phys_to_virt(0x100000 - NETIDBLK_MAGIC_SIZE);
 	int err = -ENOMEM;
 
 	/* This code scans the region 0xf0000 to 0xfffff for a "NETIDBLK". */
-	for(p = (char *)phys_to_virt(0xf0000); p < (char *)phys_to_virt(0x100000); p++)
-		if (*p == 'N'  &&  strncmp(p, "NETIDBLK", 8) == 0)
+	for(p = (char *)phys_to_virt(0xf0000); p <= plast; p++)
+		if (*p == 'N' &&
+		    strncmp(p, NETIDBLK_MAGIC, NETIDBLK_MAGIC_SIZE) == 0)
 			break;
 
-	if (p >= (char *)phys_to_virt(0x100000)) {
+	if (p > plast) {
 		if (znet_debug > 1)
 			printk(KERN_INFO "No Z-Note ethernet adaptor found.\n");
 		return -ENODEV;
@@ -860,14 +865,14 @@ static void hardware_init(struct net_device *dev)
 	disable_dma(znet->rx_dma); 		/* reset by an interrupting task. */
 	clear_dma_ff(znet->rx_dma);
 	set_dma_mode(znet->rx_dma, DMA_RX_MODE);
-	set_dma_addr(znet->rx_dma, (unsigned int) znet->rx_start);
+	set_dma_addr(znet->rx_dma, isa_virt_to_bus(znet->rx_start));
 	set_dma_count(znet->rx_dma, RX_BUF_SIZE);
 	enable_dma(znet->rx_dma);
 	/* Now set up the Tx channel. */
 	disable_dma(znet->tx_dma);
 	clear_dma_ff(znet->tx_dma);
 	set_dma_mode(znet->tx_dma, DMA_TX_MODE);
-	set_dma_addr(znet->tx_dma, (unsigned int) znet->tx_start);
+	set_dma_addr(znet->tx_dma, isa_virt_to_bus(znet->tx_start));
 	set_dma_count(znet->tx_dma, znet->tx_buf_len<<1);
 	enable_dma(znet->tx_dma);
 	release_dma_lock(flags);
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 9010cea68bc..b68d28a130e 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -472,14 +472,9 @@ static void ibmveth_cleanup(struct ibmveth_adapter *adapter)
 	}
 
 	if (adapter->rx_queue.queue_addr != NULL) {
-		if (!dma_mapping_error(dev, adapter->rx_queue.queue_dma)) {
-			dma_unmap_single(dev,
-					adapter->rx_queue.queue_dma,
-					adapter->rx_queue.queue_len,
-					DMA_BIDIRECTIONAL);
-			adapter->rx_queue.queue_dma = DMA_ERROR_CODE;
-		}
-		kfree(adapter->rx_queue.queue_addr);
+		dma_free_coherent(dev, adapter->rx_queue.queue_len,
+				  adapter->rx_queue.queue_addr,
+				  adapter->rx_queue.queue_dma);
 		adapter->rx_queue.queue_addr = NULL;
 	}
 
@@ -556,10 +551,13 @@ static int ibmveth_open(struct net_device *netdev)
 		goto err_out;
 	}
 
+	dev = &adapter->vdev->dev;
+
 	adapter->rx_queue.queue_len = sizeof(struct ibmveth_rx_q_entry) *
 						rxq_entries;
-	adapter->rx_queue.queue_addr = kmalloc(adapter->rx_queue.queue_len,
-						GFP_KERNEL);
+	adapter->rx_queue.queue_addr =
+	    dma_alloc_coherent(dev, adapter->rx_queue.queue_len,
+			       &adapter->rx_queue.queue_dma, GFP_KERNEL);
 
 	if (!adapter->rx_queue.queue_addr) {
 		netdev_err(netdev, "unable to allocate rx queue pages\n");
@@ -567,19 +565,13 @@ static int ibmveth_open(struct net_device *netdev)
 		goto err_out;
 	}
 
-	dev = &adapter->vdev->dev;
-
 	adapter->buffer_list_dma = dma_map_single(dev,
 			adapter->buffer_list_addr, 4096, DMA_BIDIRECTIONAL);
 	adapter->filter_list_dma = dma_map_single(dev,
 			adapter->filter_list_addr, 4096, DMA_BIDIRECTIONAL);
-	adapter->rx_queue.queue_dma = dma_map_single(dev,
-			adapter->rx_queue.queue_addr,
-			adapter->rx_queue.queue_len, DMA_BIDIRECTIONAL);
 
 	if ((dma_mapping_error(dev, adapter->buffer_list_dma)) ||
-	    (dma_mapping_error(dev, adapter->filter_list_dma)) ||
-	    (dma_mapping_error(dev, adapter->rx_queue.queue_dma))) {
+	    (dma_mapping_error(dev, adapter->filter_list_dma))) {
 		netdev_err(netdev, "unable to map filter or buffer list "
 			   "pages\n");
 		rc = -ENOMEM;
diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index 535f94fac4a..29ce9bd27f9 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -3157,7 +3157,7 @@ static void e100_io_resume(struct pci_dev *pdev)
 	}
 }
 
-static struct pci_error_handlers e100_err_handler = {
+static const struct pci_error_handlers e100_err_handler = {
 	.error_detected = e100_io_error_detected,
 	.slot_reset = e100_io_slot_reset,
 	.resume = e100_io_resume,
diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
index 736a7d987db..9089d00f142 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
@@ -174,6 +174,20 @@ static int e1000_get_settings(struct net_device *netdev,
 
 	ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 			 hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+	/* MDI-X => 1; MDI => 0 */
+	if ((hw->media_type == e1000_media_type_copper) &&
+	    netif_carrier_ok(netdev))
+		ecmd->eth_tp_mdix = (!!adapter->phy_info.mdix_mode ?
+							ETH_TP_MDI_X :
+							ETH_TP_MDI);
+	else
+		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+	if (hw->mdix == AUTO_ALL_MODES)
+		ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+	else
+		ecmd->eth_tp_mdix_ctrl = hw->mdix;
 	return 0;
 }
 
@@ -183,6 +197,22 @@ static int e1000_set_settings(struct net_device *netdev,
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
 
+	/*
+	 * MDI setting is only allowed when autoneg enabled because
+	 * some hardware doesn't allow MDI setting when speed or
+	 * duplex is forced.
+	 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		if (hw->media_type != e1000_media_type_copper)
+			return -EOPNOTSUPP;
+
+		if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
+		    (ecmd->autoneg != AUTONEG_ENABLE)) {
+			e_err(drv, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+			return -EINVAL;
+		}
+	}
+
 	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 		msleep(1);
 
@@ -199,12 +229,21 @@ static int e1000_set_settings(struct net_device *netdev,
 		ecmd->advertising = hw->autoneg_advertised;
 	} else {
 		u32 speed = ethtool_cmd_speed(ecmd);
+		/* calling this overrides forced MDI setting */
 		if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 			clear_bit(__E1000_RESETTING, &adapter->flags);
 			return -EINVAL;
 		}
 	}
 
+	/* MDI-X => 2; MDI => 1; Auto => 3 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+			hw->mdix = AUTO_ALL_MODES;
+		else
+			hw->mdix = ecmd->eth_tp_mdix_ctrl;
+	}
+
 	/* reset the link */
 
 	if (netif_running(adapter->netdev)) {
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 3bfbb8df898..222bfaff462 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -192,7 +192,7 @@ static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
 static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev);
 static void e1000_io_resume(struct pci_dev *pdev);
 
-static struct pci_error_handlers e1000_err_handler = {
+static const struct pci_error_handlers e1000_err_handler = {
 	.error_detected = e1000_io_error_detected,
 	.slot_reset = e1000_io_slot_reset,
 	.resume = e1000_io_resume,
@@ -2014,6 +2014,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
 		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
 	}
 
+	netdev_reset_queue(adapter->netdev);
 	size = sizeof(struct e1000_buffer) * tx_ring->count;
 	memset(tx_ring->buffer_info, 0, size);
 
@@ -3149,6 +3150,17 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 		return NETDEV_TX_OK;
 	}
 
+	/* On PCI/PCI-X HW, if packet size is less than ETH_ZLEN,
+	 * packets may get corrupted during padding by HW.
+	 * To WA this issue, pad all small packets manually.
+	 */
+	if (skb->len < ETH_ZLEN) {
+		if (skb_pad(skb, ETH_ZLEN - skb->len))
+			return NETDEV_TX_OK;
+		skb->len = ETH_ZLEN;
+		skb_set_tail_pointer(skb, ETH_ZLEN);
+	}
+
 	mss = skb_shinfo(skb)->gso_size;
 	/* The controller does a simple calculation to
 	 * make sure there is enough room in the FIFO before
@@ -3262,6 +3274,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 	                     nr_frags, mss);
 
 	if (count) {
+		netdev_sent_queue(netdev, skb->len);
 		skb_tx_timestamp(skb);
 
 		e1000_tx_queue(adapter, tx_ring, tx_flags, count);
@@ -3849,6 +3862,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 	unsigned int i, eop;
 	unsigned int count = 0;
 	unsigned int total_tx_bytes=0, total_tx_packets=0;
+	unsigned int bytes_compl = 0, pkts_compl = 0;
 
 	i = tx_ring->next_to_clean;
 	eop = tx_ring->buffer_info[i].next_to_watch;
@@ -3866,6 +3880,11 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 			if (cleaned) {
 				total_tx_packets += buffer_info->segs;
 				total_tx_bytes += buffer_info->bytecount;
+				if (buffer_info->skb) {
+					bytes_compl += buffer_info->skb->len;
+					pkts_compl++;
+				}
+
 			}
 			e1000_unmap_and_free_tx_resource(adapter, buffer_info);
 			tx_desc->upper.data = 0;
@@ -3879,6 +3898,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 
 	tx_ring->next_to_clean = i;
 
+	netdev_completed_queue(netdev, pkts_compl, bytes_compl);
+
 #define TX_WAKE_THRESHOLD 32
 	if (unlikely(count && netif_carrier_ok(netdev) &&
 		     E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
@@ -4939,6 +4960,10 @@ int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 	default:
 		goto err_inval;
 	}
+
+	/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
+	hw->mdix = AUTO_ALL_MODES;
+
 	return 0;
 
 err_inval:
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index 0b3bade957f..c9858640800 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -653,7 +653,7 @@ static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw)
  **/
 static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active)
 {
-	u16 data = er32(POEMB);
+	u32 data = er32(POEMB);
 
 	if (active)
 		data |= E1000_PHY_CTRL_D0A_LPLU;
@@ -677,7 +677,7 @@ static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active)
  **/
 static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active)
 {
-	u16 data = er32(POEMB);
+	u32 data = er32(POEMB);
 
 	if (!active) {
 		data &= ~E1000_PHY_CTRL_NOND0A_LPLU;
@@ -999,7 +999,7 @@ static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
  **/
 static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 {
-	u32 ctrl, ctrl_ext, eecd;
+	u32 ctrl, ctrl_ext, eecd, tctl;
 	s32 ret_val;
 
 	/*
@@ -1014,7 +1014,9 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 	ew32(IMC, 0xffffffff);
 
 	ew32(RCTL, 0);
-	ew32(TCTL, E1000_TCTL_PSP);
+	tctl = er32(TCTL);
+	tctl &= ~E1000_TCTL_EN;
+	ew32(TCTL, tctl);
 	e1e_flush();
 
 	usleep_range(10000, 20000);
@@ -1601,10 +1603,8 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw)
 			 * auto-negotiation in the TXCW register and disable
 			 * forced link in the Device Control register in an
 			 * attempt to auto-negotiate with our link partner.
-			 * If the partner code word is null, stop forcing
-			 * and restart auto negotiation.
 			 */
-			if ((rxcw & E1000_RXCW_C) || !(rxcw & E1000_RXCW_CW))  {
+			if (rxcw & E1000_RXCW_C) {
 				/* Enable autoneg, and unforce link up */
 				ew32(TXCW, mac->txcw);
 				ew32(CTRL, (ctrl & ~E1000_CTRL_SLU));
diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
index cd153326c3c..cb3356c9af8 100644
--- a/drivers/net/ethernet/intel/e1000e/e1000.h
+++ b/drivers/net/ethernet/intel/e1000e/e1000.h
@@ -310,6 +310,7 @@ struct e1000_adapter {
 	 */
 	struct e1000_ring *tx_ring /* One per active queue */
 						____cacheline_aligned_in_smp;
+	u32 tx_fifo_limit;
 
 	struct napi_struct napi;
 
diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
index 0349e2478df..c11ac275666 100644
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
@@ -199,6 +199,11 @@ static int e1000_get_settings(struct net_device *netdev,
 	else
 		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 
+	if (hw->phy.mdix == AUTO_ALL_MODES)
+		ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+	else
+		ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
+
 	return 0;
 }
 
@@ -241,6 +246,10 @@ static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 	default:
 		goto err_inval;
 	}
+
+	/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
+	adapter->hw.phy.mdix = AUTO_ALL_MODES;
+
 	return 0;
 
 err_inval:
@@ -264,6 +273,22 @@ static int e1000_set_settings(struct net_device *netdev,
 		return -EINVAL;
 	}
 
+	/*
+	 * MDI setting is only allowed when autoneg enabled because
+	 * some hardware doesn't allow MDI setting when speed or
+	 * duplex is forced.
+	 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		if (hw->phy.media_type != e1000_media_type_copper)
+			return -EOPNOTSUPP;
+
+		if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
+		    (ecmd->autoneg != AUTONEG_ENABLE)) {
+			e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+			return -EINVAL;
+		}
+	}
+
 	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 		usleep_range(1000, 2000);
 
@@ -282,20 +307,32 @@ static int e1000_set_settings(struct net_device *netdev,
 			hw->fc.requested_mode = e1000_fc_default;
 	} else {
 		u32 speed = ethtool_cmd_speed(ecmd);
+		/* calling this overrides forced MDI setting */
 		if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 			clear_bit(__E1000_RESETTING, &adapter->state);
 			return -EINVAL;
 		}
 	}
 
+	/* MDI-X => 2; MDI => 1; Auto => 3 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		/*
+		 * fix up the value for auto (3 => 0) as zero is mapped
+		 * internally to auto
+		 */
+		if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+			hw->phy.mdix = AUTO_ALL_MODES;
+		else
+			hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
+	}
+
 	/* reset the link */
 
 	if (netif_running(adapter->netdev)) {
 		e1000e_down(adapter);
 		e1000e_up(adapter);
-	} else {
+	} else
 		e1000e_reset(adapter);
-	}
 
 	clear_bit(__E1000_RESETTING, &adapter->state);
 	return 0;
@@ -1905,7 +1942,8 @@ static int e1000_set_coalesce(struct net_device *netdev,
 		return -EINVAL;
 
 	if (ec->rx_coalesce_usecs == 4) {
-		adapter->itr = adapter->itr_setting = 4;
+		adapter->itr_setting = 4;
+		adapter->itr = adapter->itr_setting;
 	} else if (ec->rx_coalesce_usecs <= 3) {
 		adapter->itr = 20000;
 		adapter->itr_setting = ec->rx_coalesce_usecs;
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 95b245310f1..fb659dd8db0 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -56,7 +56,7 @@
 
 #define DRV_EXTRAVERSION "-k"
 
-#define DRV_VERSION "2.0.0" DRV_EXTRAVERSION
+#define DRV_VERSION "2.1.4" DRV_EXTRAVERSION
 char e1000e_driver_name[] = "e1000e";
 const char e1000e_driver_version[] = DRV_VERSION;
 
@@ -178,6 +178,24 @@ static void e1000_regdump(struct e1000_hw *hw, struct e1000_reg_info *reginfo)
 	pr_info("%-15s %08x %08x\n", rname, regs[0], regs[1]);
 }
 
+static void e1000e_dump_ps_pages(struct e1000_adapter *adapter,
+				 struct e1000_buffer *bi)
+{
+	int i;
+	struct e1000_ps_page *ps_page;
+
+	for (i = 0; i < adapter->rx_ps_pages; i++) {
+		ps_page = &bi->ps_pages[i];
+
+		if (ps_page->page) {
+			pr_info("packet dump for ps_page %d:\n", i);
+			print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS,
+				       16, 1, page_address(ps_page->page),
+				       PAGE_SIZE, true);
+		}
+	}
+}
+
 /*
  * e1000e_dump - Print registers, Tx-ring and Rx-ring
  */
@@ -299,10 +317,10 @@ static void e1000e_dump(struct e1000_adapter *adapter)
 			(unsigned long long)buffer_info->time_stamp,
 			buffer_info->skb, next_desc);
 
-		if (netif_msg_pktdata(adapter) && buffer_info->dma != 0)
+		if (netif_msg_pktdata(adapter) && buffer_info->skb)
 			print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS,
-				       16, 1, phys_to_virt(buffer_info->dma),
-				       buffer_info->length, true);
+				       16, 1, buffer_info->skb->data,
+				       buffer_info->skb->len, true);
 	}
 
 	/* Print Rx Ring Summary */
@@ -381,10 +399,8 @@ rx_ring_summary:
 					buffer_info->skb, next_desc);
 
 				if (netif_msg_pktdata(adapter))
-					print_hex_dump(KERN_INFO, "",
-						DUMP_PREFIX_ADDRESS, 16, 1,
-						phys_to_virt(buffer_info->dma),
-						adapter->rx_ps_bsize0, true);
+					e1000e_dump_ps_pages(adapter,
+							     buffer_info);
 			}
 		}
 		break;
@@ -444,12 +460,12 @@ rx_ring_summary:
 					(unsigned long long)buffer_info->dma,
 					buffer_info->skb, next_desc);
 
-				if (netif_msg_pktdata(adapter))
+				if (netif_msg_pktdata(adapter) &&
+				    buffer_info->skb)
 					print_hex_dump(KERN_INFO, "",
 						       DUMP_PREFIX_ADDRESS, 16,
 						       1,
-						       phys_to_virt
-						       (buffer_info->dma),
+						       buffer_info->skb->data,
 						       adapter->rx_buffer_len,
 						       true);
 			}
@@ -3430,7 +3446,7 @@ void e1000e_reset(struct e1000_adapter *adapter)
 
 			/*
 			 * if short on Rx space, Rx wins and must trump Tx
-			 * adjustment or use Early Receive if available
+			 * adjustment
 			 */
 			if (pba < min_rx_space)
 				pba = min_rx_space;
@@ -3501,6 +3517,15 @@ void e1000e_reset(struct e1000_adapter *adapter)
 	}
 
 	/*
+	 * Alignment of Tx data is on an arbitrary byte boundary with the
+	 * maximum size per Tx descriptor limited only to the transmit
+	 * allocation of the packet buffer minus 96 bytes with an upper
+	 * limit of 24KB due to receive synchronization limitations.
+	 */
+	adapter->tx_fifo_limit = min_t(u32, ((er32(PBA) >> 16) << 10) - 96,
+				       24 << 10);
+
+	/*
 	 * Disable Adaptive Interrupt Moderation if 2 full packets cannot
 	 * fit in receive buffer.
 	 */
@@ -3730,6 +3755,10 @@ static irqreturn_t e1000_intr_msi_test(int irq, void *data)
 	e_dbg("icr is %08X\n", icr);
 	if (icr & E1000_ICR_RXSEQ) {
 		adapter->flags &= ~FLAG_MSI_TEST_FAILED;
+		/*
+		 * Force memory writes to complete before acknowledging the
+		 * interrupt is handled.
+		 */
 		wmb();
 	}
 
@@ -3771,6 +3800,10 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
 		goto msi_test_failed;
 	}
 
+	/*
+	 * Force memory writes to complete before enabling and firing an
+	 * interrupt.
+	 */
 	wmb();
 
 	e1000_irq_enable(adapter);
@@ -3782,7 +3815,7 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
 
 	e1000_irq_disable(adapter);
 
-	rmb();
+	rmb();			/* read flags after interrupt has been fired */
 
 	if (adapter->flags & FLAG_MSI_TEST_FAILED) {
 		adapter->int_mode = E1000E_INT_MODE_LEGACY;
@@ -4645,7 +4678,7 @@ static int e1000_tso(struct e1000_ring *tx_ring, struct sk_buff *skb)
 	struct e1000_buffer *buffer_info;
 	unsigned int i;
 	u32 cmd_length = 0;
-	u16 ipcse = 0, tucse, mss;
+	u16 ipcse = 0, mss;
 	u8 ipcss, ipcso, tucss, tucso, hdr_len;
 
 	if (!skb_is_gso(skb))
@@ -4679,7 +4712,6 @@ static int e1000_tso(struct e1000_ring *tx_ring, struct sk_buff *skb)
 	ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
 	tucss = skb_transport_offset(skb);
 	tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
-	tucse = 0;
 
 	cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
 	               E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
@@ -4693,7 +4725,7 @@ static int e1000_tso(struct e1000_ring *tx_ring, struct sk_buff *skb)
 	context_desc->lower_setup.ip_fields.ipcse  = cpu_to_le16(ipcse);
 	context_desc->upper_setup.tcp_fields.tucss = tucss;
 	context_desc->upper_setup.tcp_fields.tucso = tucso;
-	context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
+	context_desc->upper_setup.tcp_fields.tucse = 0;
 	context_desc->tcp_seg_setup.fields.mss     = cpu_to_le16(mss);
 	context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
 	context_desc->cmd_and_length = cpu_to_le32(cmd_length);
@@ -4769,12 +4801,9 @@ static bool e1000_tx_csum(struct e1000_ring *tx_ring, struct sk_buff *skb)
 	return 1;
 }
 
-#define E1000_MAX_PER_TXD	8192
-#define E1000_MAX_TXD_PWR	12
-
 static int e1000_tx_map(struct e1000_ring *tx_ring, struct sk_buff *skb,
 			unsigned int first, unsigned int max_per_txd,
-			unsigned int nr_frags, unsigned int mss)
+			unsigned int nr_frags)
 {
 	struct e1000_adapter *adapter = tx_ring->adapter;
 	struct pci_dev *pdev = adapter->pdev;
@@ -5007,20 +5036,19 @@ static int __e1000_maybe_stop_tx(struct e1000_ring *tx_ring, int size)
 
 static int e1000_maybe_stop_tx(struct e1000_ring *tx_ring, int size)
 {
+	BUG_ON(size > tx_ring->count);
+
 	if (e1000_desc_unused(tx_ring) >= size)
 		return 0;
 	return __e1000_maybe_stop_tx(tx_ring, size);
 }
 
-#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1)
 static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 				    struct net_device *netdev)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_ring *tx_ring = adapter->tx_ring;
 	unsigned int first;
-	unsigned int max_per_txd = E1000_MAX_PER_TXD;
-	unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
 	unsigned int tx_flags = 0;
 	unsigned int len = skb_headlen(skb);
 	unsigned int nr_frags;
@@ -5040,18 +5068,8 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 	}
 
 	mss = skb_shinfo(skb)->gso_size;
-	/*
-	 * The controller does a simple calculation to
-	 * make sure there is enough room in the FIFO before
-	 * initiating the DMA for each buffer.  The calc is:
-	 * 4 = ceil(buffer len/mss).  To make sure we don't
-	 * overrun the FIFO, adjust the max buffer len if mss
-	 * drops.
-	 */
 	if (mss) {
 		u8 hdr_len;
-		max_per_txd = min(mss << 2, max_per_txd);
-		max_txd_pwr = fls(max_per_txd) - 1;
 
 		/*
 		 * TSO Workaround for 82571/2/3 Controllers -- if skb->data
@@ -5081,12 +5099,12 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 		count++;
 	count++;
 
-	count += TXD_USE_COUNT(len, max_txd_pwr);
+	count += DIV_ROUND_UP(len, adapter->tx_fifo_limit);
 
 	nr_frags = skb_shinfo(skb)->nr_frags;
 	for (f = 0; f < nr_frags; f++)
-		count += TXD_USE_COUNT(skb_frag_size(&skb_shinfo(skb)->frags[f]),
-				       max_txd_pwr);
+		count += DIV_ROUND_UP(skb_frag_size(&skb_shinfo(skb)->frags[f]),
+				      adapter->tx_fifo_limit);
 
 	if (adapter->hw.mac.tx_pkt_filtering)
 		e1000_transfer_dhcp_info(adapter, skb);
@@ -5128,15 +5146,18 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 		tx_flags |= E1000_TX_FLAGS_NO_FCS;
 
 	/* if count is 0 then mapping error has occurred */
-	count = e1000_tx_map(tx_ring, skb, first, max_per_txd, nr_frags, mss);
+	count = e1000_tx_map(tx_ring, skb, first, adapter->tx_fifo_limit,
+			     nr_frags);
 	if (count) {
 		skb_tx_timestamp(skb);
 
 		netdev_sent_queue(netdev, skb->len);
 		e1000_tx_queue(tx_ring, tx_flags, count);
 		/* Make sure there is space in the ring for the next send. */
-		e1000_maybe_stop_tx(tx_ring, MAX_SKB_FRAGS + 2);
-
+		e1000_maybe_stop_tx(tx_ring,
+				    (MAX_SKB_FRAGS *
+				     DIV_ROUND_UP(PAGE_SIZE,
+						  adapter->tx_fifo_limit) + 2));
 	} else {
 		dev_kfree_skb_any(skb);
 		tx_ring->buffer_info[first].time_stamp = 0;
@@ -5570,16 +5591,15 @@ static void e1000_complete_shutdown(struct pci_dev *pdev, bool sleep,
 	 */
 	if (adapter->flags & FLAG_IS_QUAD_PORT) {
 		struct pci_dev *us_dev = pdev->bus->self;
-		int pos = pci_pcie_cap(us_dev);
 		u16 devctl;
 
-		pci_read_config_word(us_dev, pos + PCI_EXP_DEVCTL, &devctl);
-		pci_write_config_word(us_dev, pos + PCI_EXP_DEVCTL,
-		                      (devctl & ~PCI_EXP_DEVCTL_CERE));
+		pcie_capability_read_word(us_dev, PCI_EXP_DEVCTL, &devctl);
+		pcie_capability_write_word(us_dev, PCI_EXP_DEVCTL,
+					   (devctl & ~PCI_EXP_DEVCTL_CERE));
 
 		e1000_power_off(pdev, sleep, wake);
 
-		pci_write_config_word(us_dev, pos + PCI_EXP_DEVCTL, devctl);
+		pcie_capability_write_word(us_dev, PCI_EXP_DEVCTL, devctl);
 	} else {
 		e1000_power_off(pdev, sleep, wake);
 	}
@@ -5593,25 +5613,15 @@ static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
 #else
 static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
 {
-	int pos;
-	u16 reg16;
-
 	/*
 	 * Both device and parent should have the same ASPM setting.
 	 * Disable ASPM in downstream component first and then upstream.
 	 */
-	pos = pci_pcie_cap(pdev);
-	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
-	reg16 &= ~state;
-	pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
-
-	if (!pdev->bus->self)
-		return;
+	pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL, state);
 
-	pos = pci_pcie_cap(pdev->bus->self);
-	pci_read_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, &reg16);
-	reg16 &= ~state;
-	pci_write_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, reg16);
+	if (pdev->bus->self)
+		pcie_capability_clear_word(pdev->bus->self, PCI_EXP_LNKCTL,
+					   state);
 }
 #endif
 static void e1000e_disable_aspm(struct pci_dev *pdev, u16 state)
@@ -6311,8 +6321,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 	adapter->hw.phy.autoneg_advertised = 0x2f;
 
 	/* ring size defaults */
-	adapter->rx_ring->count = 256;
-	adapter->tx_ring->count = 256;
+	adapter->rx_ring->count = E1000_DEFAULT_RXD;
+	adapter->tx_ring->count = E1000_DEFAULT_TXD;
 
 	/*
 	 * Initial Wake on LAN setting - If APM wake is enabled in
@@ -6472,7 +6482,7 @@ static void __devexit e1000_remove(struct pci_dev *pdev)
 }
 
 /* PCI Error Recovery (ERS) */
-static struct pci_error_handlers e1000_err_handler = {
+static const struct pci_error_handlers e1000_err_handler = {
 	.error_detected = e1000_io_error_detected,
 	.slot_reset = e1000_io_slot_reset,
 	.resume = e1000_io_resume,
diff --git a/drivers/net/ethernet/intel/e1000e/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c
index b860d4f7ea2..fc62a3f3a5b 100644
--- a/drivers/net/ethernet/intel/e1000e/phy.c
+++ b/drivers/net/ethernet/intel/e1000e/phy.c
@@ -84,8 +84,9 @@ static const u16 e1000_igp_2_cable_length_table[] = {
 #define I82577_PHY_STATUS2_SPEED_1000MBPS 0x0200
 
 /* I82577 PHY Control 2 */
-#define I82577_PHY_CTRL2_AUTO_MDIX        0x0400
-#define I82577_PHY_CTRL2_FORCE_MDI_MDIX   0x0200
+#define I82577_PHY_CTRL2_MANUAL_MDIX      0x0200
+#define I82577_PHY_CTRL2_AUTO_MDI_MDIX    0x0400
+#define I82577_PHY_CTRL2_MDIX_CFG_MASK    0x0600
 
 /* I82577 PHY Diagnostics Status */
 #define I82577_DSTATUS_CABLE_LENGTH       0x03FC
@@ -702,6 +703,32 @@ s32 e1000_copper_link_setup_82577(struct e1000_hw *hw)
 	if (ret_val)
 		return ret_val;
 
+	/* Set MDI/MDIX mode */
+	ret_val = e1e_rphy(hw, I82577_PHY_CTRL_2, &phy_data);
+	if (ret_val)
+		return ret_val;
+	phy_data &= ~I82577_PHY_CTRL2_MDIX_CFG_MASK;
+	/*
+	 * Options:
+	 *   0 - Auto (default)
+	 *   1 - MDI mode
+	 *   2 - MDI-X mode
+	 */
+	switch (hw->phy.mdix) {
+	case 1:
+		break;
+	case 2:
+		phy_data |= I82577_PHY_CTRL2_MANUAL_MDIX;
+		break;
+	case 0:
+	default:
+		phy_data |= I82577_PHY_CTRL2_AUTO_MDI_MDIX;
+		break;
+	}
+	ret_val = e1e_wphy(hw, I82577_PHY_CTRL_2, phy_data);
+	if (ret_val)
+		return ret_val;
+
 	return e1000_set_master_slave_mode(hw);
 }
 
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index 5e84eaac48c..ca4641e2f74 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -254,6 +254,14 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 	 */
 	size += NVM_WORD_SIZE_BASE_SHIFT;
 
+	/*
+	 * Check for invalid size
+	 */
+	if ((hw->mac.type == e1000_82576) && (size > 15)) {
+		pr_notice("The NVM size is not valid, defaulting to 32K\n");
+		size = 15;
+	}
+
 	nvm->word_size = 1 << size;
 	if (hw->mac.type < e1000_i210) {
 		nvm->opcode_bits        = 8;
@@ -281,14 +289,6 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 	} else
 		nvm->type = e1000_nvm_flash_hw;
 
-	/*
-	 * Check for invalid size
-	 */
-	if ((hw->mac.type == e1000_82576) && (size > 15)) {
-		pr_notice("The NVM size is not valid, defaulting to 32K\n");
-		size = 15;
-	}
-
 	/* NVM Function Pointers */
 	switch (hw->mac.type) {
 	case e1000_82580:
@@ -2223,11 +2223,10 @@ out:
 s32 igb_set_eee_i350(struct e1000_hw *hw)
 {
 	s32 ret_val = 0;
-	u32 ipcnfg, eeer, ctrl_ext;
+	u32 ipcnfg, eeer;
 
-	ctrl_ext = rd32(E1000_CTRL_EXT);
-	if ((hw->mac.type != e1000_i350) ||
-	    (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK))
+	if ((hw->mac.type < e1000_i350) ||
+	    (hw->phy.media_type != e1000_media_type_copper))
 		goto out;
 	ipcnfg = rd32(E1000_IPCNFG);
 	eeer = rd32(E1000_EEER);
@@ -2240,6 +2239,14 @@ s32 igb_set_eee_i350(struct e1000_hw *hw)
 			E1000_EEER_RX_LPI_EN |
 			E1000_EEER_LPI_FC);
 
+		/* keep the LPI clock running before EEE is enabled */
+		if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
+			u32 eee_su;
+			eee_su = rd32(E1000_EEE_SU);
+			eee_su &= ~E1000_EEE_SU_LPI_CLK_STP;
+			wr32(E1000_EEE_SU, eee_su);
+		}
+
 	} else {
 		ipcnfg &= ~(E1000_IPCNFG_EEE_1G_AN |
 			E1000_IPCNFG_EEE_100M_AN);
@@ -2249,6 +2256,8 @@ s32 igb_set_eee_i350(struct e1000_hw *hw)
 	}
 	wr32(E1000_IPCNFG, ipcnfg);
 	wr32(E1000_EEER, eeer);
+	rd32(E1000_IPCNFG);
+	rd32(E1000_EEER);
 out:
 
 	return ret_val;
diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h
index ec7e4fe3e3e..de4b41ec3c4 100644
--- a/drivers/net/ethernet/intel/igb/e1000_defines.h
+++ b/drivers/net/ethernet/intel/igb/e1000_defines.h
@@ -322,6 +322,9 @@
 #define E1000_FCRTC_RTH_COAL_SHIFT      4
 #define E1000_PCIEMISC_LX_DECISION      0x00000080 /* Lx power decision */
 
+/* Timestamp in Rx buffer */
+#define E1000_RXPBS_CFG_TS_EN           0x80000000
+
 /* SerDes Control */
 #define E1000_SCTL_DISABLE_SERDES_LOOPBACK 0x0400
 
@@ -360,6 +363,7 @@
 #define E1000_ICR_RXDMT0        0x00000010 /* rx desc min. threshold (0) */
 #define E1000_ICR_RXT0          0x00000080 /* rx timer intr (ring 0) */
 #define E1000_ICR_VMMB          0x00000100 /* VM MB event */
+#define E1000_ICR_TS            0x00080000 /* Time Sync Interrupt */
 #define E1000_ICR_DRSTA         0x40000000 /* Device Reset Asserted */
 /* If this bit asserted, the driver should claim the interrupt */
 #define E1000_ICR_INT_ASSERTED  0x80000000
@@ -399,6 +403,7 @@
 #define E1000_IMS_TXDW      E1000_ICR_TXDW      /* Transmit desc written back */
 #define E1000_IMS_LSC       E1000_ICR_LSC       /* Link Status Change */
 #define E1000_IMS_VMMB      E1000_ICR_VMMB      /* Mail box activity */
+#define E1000_IMS_TS        E1000_ICR_TS        /* Time Sync Interrupt */
 #define E1000_IMS_RXSEQ     E1000_ICR_RXSEQ     /* rx sequence error */
 #define E1000_IMS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
 #define E1000_IMS_RXT0      E1000_ICR_RXT0      /* rx timer intr */
@@ -510,6 +515,9 @@
 
 #define E1000_TIMINCA_16NS_SHIFT 24
 
+#define E1000_TSICR_TXTS 0x00000002
+#define E1000_TSIM_TXTS 0x00000002
+
 #define E1000_MDICNFG_EXT_MDIO    0x80000000      /* MDI ext/int destination */
 #define E1000_MDICNFG_COM_MDIO    0x40000000      /* MDI shared w/ lan 0 */
 #define E1000_MDICNFG_PHY_MASK    0x03E00000
@@ -849,8 +857,9 @@
 #define E1000_IPCNFG_EEE_100M_AN     0x00000004  /* EEE Enable 100M AN */
 #define E1000_EEER_TX_LPI_EN         0x00010000  /* EEE Tx LPI Enable */
 #define E1000_EEER_RX_LPI_EN         0x00020000  /* EEE Rx LPI Enable */
-#define E1000_EEER_FRC_AN            0x10000000 /* Enable EEE in loopback */
+#define E1000_EEER_FRC_AN            0x10000000  /* Enable EEE in loopback */
 #define E1000_EEER_LPI_FC            0x00040000  /* EEE Enable on FC */
+#define E1000_EEE_SU_LPI_CLK_STP     0X00800000  /* EEE LPI Clock Stop */
 
 /* SerDes Control */
 #define E1000_GEN_CTL_READY             0x80000000
diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c
index 7be98b6f105..3404bc79f4c 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -464,6 +464,32 @@ s32 igb_copper_link_setup_82580(struct e1000_hw *hw)
 	phy_data |= I82580_CFG_ENABLE_DOWNSHIFT;
 
 	ret_val = phy->ops.write_reg(hw, I82580_CFG_REG, phy_data);
+	if (ret_val)
+		goto out;
+
+	/* Set MDI/MDIX mode */
+	ret_val = phy->ops.read_reg(hw, I82580_PHY_CTRL_2, &phy_data);
+	if (ret_val)
+		goto out;
+	phy_data &= ~I82580_PHY_CTRL2_MDIX_CFG_MASK;
+	/*
+	 * Options:
+	 *   0 - Auto (default)
+	 *   1 - MDI mode
+	 *   2 - MDI-X mode
+	 */
+	switch (hw->phy.mdix) {
+	case 1:
+		break;
+	case 2:
+		phy_data |= I82580_PHY_CTRL2_MANUAL_MDIX;
+		break;
+	case 0:
+	default:
+		phy_data |= I82580_PHY_CTRL2_AUTO_MDI_MDIX;
+		break;
+	}
+	ret_val = hw->phy.ops.write_reg(hw, I82580_PHY_CTRL_2, phy_data);
 
 out:
 	return ret_val;
@@ -2246,8 +2272,7 @@ s32 igb_phy_force_speed_duplex_82580(struct e1000_hw *hw)
 	if (ret_val)
 		goto out;
 
-	phy_data &= ~I82580_PHY_CTRL2_AUTO_MDIX;
-	phy_data &= ~I82580_PHY_CTRL2_FORCE_MDI_MDIX;
+	phy_data &= ~I82580_PHY_CTRL2_MDIX_CFG_MASK;
 
 	ret_val = phy->ops.write_reg(hw, I82580_PHY_CTRL_2, phy_data);
 	if (ret_val)
diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.h b/drivers/net/ethernet/intel/igb/e1000_phy.h
index 34e40619f16..6ac3299bfcb 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.h
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.h
@@ -111,8 +111,9 @@ s32  igb_check_polarity_m88(struct e1000_hw *hw);
 #define I82580_PHY_STATUS2_SPEED_100MBPS  0x0100
 
 /* I82580 PHY Control 2 */
-#define I82580_PHY_CTRL2_AUTO_MDIX        0x0400
-#define I82580_PHY_CTRL2_FORCE_MDI_MDIX   0x0200
+#define I82580_PHY_CTRL2_MANUAL_MDIX      0x0200
+#define I82580_PHY_CTRL2_AUTO_MDI_MDIX    0x0400
+#define I82580_PHY_CTRL2_MDIX_CFG_MASK    0x0600
 
 /* I82580 PHY Diagnostics Status */
 #define I82580_DSTATUS_CABLE_LENGTH       0x03FC
diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h
index 10efcd88dca..e5db48594e8 100644
--- a/drivers/net/ethernet/intel/igb/e1000_regs.h
+++ b/drivers/net/ethernet/intel/igb/e1000_regs.h
@@ -91,6 +91,8 @@
 #define E1000_TIMINCA    0x0B608 /* Increment attributes register - RW */
 #define E1000_TSAUXC     0x0B640 /* Timesync Auxiliary Control register */
 #define E1000_SYSTIMR    0x0B6F8 /* System time register Residue */
+#define E1000_TSICR      0x0B66C /* Interrupt Cause Register */
+#define E1000_TSIM       0x0B674 /* Interrupt Mask Register */
 
 /* Filtering Registers */
 #define E1000_SAQF(_n) (0x5980 + 4 * (_n))
@@ -156,8 +158,12 @@
 				    : (0x0E018 + ((_n) * 0x40)))
 #define E1000_TXDCTL(_n)  ((_n) < 4 ? (0x03828 + ((_n) * 0x100)) \
 				    : (0x0E028 + ((_n) * 0x40)))
-#define E1000_DCA_TXCTRL(_n) (0x03814 + (_n << 8))
-#define E1000_DCA_RXCTRL(_n) (0x02814 + (_n << 8))
+#define E1000_RXCTL(_n)	  ((_n) < 4 ? (0x02814 + ((_n) * 0x100)) : \
+				      (0x0C014 + ((_n) * 0x40)))
+#define E1000_DCA_RXCTRL(_n)	E1000_RXCTL(_n)
+#define E1000_TXCTL(_n)   ((_n) < 4 ? (0x03814 + ((_n) * 0x100)) : \
+				      (0x0E014 + ((_n) * 0x40)))
+#define E1000_DCA_TXCTRL(_n) E1000_TXCTL(_n)
 #define E1000_TDWBAL(_n)  ((_n) < 4 ? (0x03838 + ((_n) * 0x100)) \
 				    : (0x0E038 + ((_n) * 0x40)))
 #define E1000_TDWBAH(_n)  ((_n) < 4 ? (0x0383C + ((_n) * 0x100)) \
@@ -343,6 +349,7 @@
 /* Energy Efficient Ethernet "EEE" register */
 #define E1000_IPCNFG  0x0E38  /* Internal PHY Configuration */
 #define E1000_EEER    0x0E30  /* Energy Efficient Ethernet */
+#define E1000_EEE_SU  0X0E34  /* EEE Setup */
 
 /* Thermal Sensor Register */
 #define E1000_THSTAT    0x08110 /* Thermal Sensor Status */
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 9e572dd29ab..8aad230c059 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -34,9 +34,11 @@
 #include "e1000_mac.h"
 #include "e1000_82575.h"
 
+#ifdef CONFIG_IGB_PTP
 #include <linux/clocksource.h>
 #include <linux/net_tstamp.h>
 #include <linux/ptp_clock_kernel.h>
+#endif /* CONFIG_IGB_PTP */
 #include <linux/bitops.h>
 #include <linux/if_vlan.h>
 
@@ -99,7 +101,6 @@ struct vf_data_storage {
 	u16 pf_vlan; /* When set, guest VLAN config not allowed. */
 	u16 pf_qos;
 	u16 tx_rate;
-	struct pci_dev *vfdev;
 };
 
 #define IGB_VF_FLAG_CTS            0x00000001 /* VF is clear to send data */
@@ -131,9 +132,9 @@ struct vf_data_storage {
 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522
 
 /* Supported Rx Buffer Sizes */
-#define IGB_RXBUFFER_512   512
+#define IGB_RXBUFFER_256   256
 #define IGB_RXBUFFER_16384 16384
-#define IGB_RX_HDR_LEN     IGB_RXBUFFER_512
+#define IGB_RX_HDR_LEN     IGB_RXBUFFER_256
 
 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
 #define IGB_TX_QUEUE_WAKE	16
@@ -167,8 +168,8 @@ struct igb_tx_buffer {
 	unsigned int bytecount;
 	u16 gso_segs;
 	__be16 protocol;
-	dma_addr_t dma;
-	u32 length;
+	DEFINE_DMA_UNMAP_ADDR(dma);
+	DEFINE_DMA_UNMAP_LEN(len);
 	u32 tx_flags;
 };
 
@@ -212,7 +213,6 @@ struct igb_q_vector {
 	struct igb_ring_container rx, tx;
 
 	struct napi_struct napi;
-	int numa_node;
 
 	u16 itr_val;
 	u8 set_itr;
@@ -257,7 +257,6 @@ struct igb_ring {
 	};
 	/* Items past this point are only used during ring alloc / free */
 	dma_addr_t dma;                /* phys address of the ring */
-	int numa_node;                  /* node to alloc ring memory on */
 };
 
 enum e1000_ring_flags_t {
@@ -342,7 +341,6 @@ struct igb_adapter {
 
 	/* OS defined structs */
 	struct pci_dev *pdev;
-	struct hwtstamp_config hwtstamp_config;
 
 	spinlock_t stats64_lock;
 	struct rtnl_link_stats64 stats64;
@@ -373,15 +371,19 @@ struct igb_adapter {
 	int vf_rate_link_speed;
 	u32 rss_queues;
 	u32 wvbr;
-	int node;
 	u32 *shadow_vfta;
 
+#ifdef CONFIG_IGB_PTP
 	struct ptp_clock *ptp_clock;
-	struct ptp_clock_info caps;
-	struct delayed_work overflow_work;
+	struct ptp_clock_info ptp_caps;
+	struct delayed_work ptp_overflow_work;
+	struct work_struct ptp_tx_work;
+	struct sk_buff *ptp_tx_skb;
 	spinlock_t tmreg_lock;
 	struct cyclecounter cc;
 	struct timecounter tc;
+#endif /* CONFIG_IGB_PTP */
+
 	char fw_version[32];
 };
 
@@ -390,6 +392,7 @@ struct igb_adapter {
 #define IGB_FLAG_QUAD_PORT_A       (1 << 2)
 #define IGB_FLAG_QUEUE_PAIRS       (1 << 3)
 #define IGB_FLAG_DMAC              (1 << 4)
+#define IGB_FLAG_PTP               (1 << 5)
 
 /* DMA Coalescing defines */
 #define IGB_MIN_TXPBSIZE           20408
@@ -435,13 +438,17 @@ extern void igb_power_up_link(struct igb_adapter *);
 extern void igb_set_fw_version(struct igb_adapter *);
 #ifdef CONFIG_IGB_PTP
 extern void igb_ptp_init(struct igb_adapter *adapter);
-extern void igb_ptp_remove(struct igb_adapter *adapter);
-
-extern void igb_systim_to_hwtstamp(struct igb_adapter *adapter,
-				   struct skb_shared_hwtstamps *hwtstamps,
-				   u64 systim);
+extern void igb_ptp_stop(struct igb_adapter *adapter);
+extern void igb_ptp_reset(struct igb_adapter *adapter);
+extern void igb_ptp_tx_work(struct work_struct *work);
+extern void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter);
+extern void igb_ptp_rx_hwtstamp(struct igb_q_vector *q_vector,
+				union e1000_adv_rx_desc *rx_desc,
+				struct sk_buff *skb);
+extern int igb_ptp_hwtstamp_ioctl(struct net_device *netdev,
+				  struct ifreq *ifr, int cmd);
+#endif /* CONFIG_IGB_PTP */
 
-#endif
 static inline s32 igb_reset_phy(struct e1000_hw *hw)
 {
 	if (hw->phy.ops.reset)
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index a19c84cad0e..2ea01284982 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -148,9 +148,9 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 				   SUPPORTED_100baseT_Full |
 				   SUPPORTED_1000baseT_Full|
 				   SUPPORTED_Autoneg |
-				   SUPPORTED_TP);
-		ecmd->advertising = (ADVERTISED_TP |
-				     ADVERTISED_Pause);
+				   SUPPORTED_TP |
+				   SUPPORTED_Pause);
+		ecmd->advertising = ADVERTISED_TP;
 
 		if (hw->mac.autoneg == 1) {
 			ecmd->advertising |= ADVERTISED_Autoneg;
@@ -158,6 +158,21 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 			ecmd->advertising |= hw->phy.autoneg_advertised;
 		}
 
+		if (hw->mac.autoneg != 1)
+			ecmd->advertising &= ~(ADVERTISED_Pause |
+					       ADVERTISED_Asym_Pause);
+
+		if (hw->fc.requested_mode == e1000_fc_full)
+			ecmd->advertising |= ADVERTISED_Pause;
+		else if (hw->fc.requested_mode == e1000_fc_rx_pause)
+			ecmd->advertising |= (ADVERTISED_Pause |
+					      ADVERTISED_Asym_Pause);
+		else if (hw->fc.requested_mode == e1000_fc_tx_pause)
+			ecmd->advertising |=  ADVERTISED_Asym_Pause;
+		else
+			ecmd->advertising &= ~(ADVERTISED_Pause |
+					       ADVERTISED_Asym_Pause);
+
 		ecmd->port = PORT_TP;
 		ecmd->phy_address = hw->phy.addr;
 	} else {
@@ -198,6 +213,19 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	}
 
 	ecmd->autoneg = hw->mac.autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+	/* MDI-X => 2; MDI =>1; Invalid =>0 */
+	if (hw->phy.media_type == e1000_media_type_copper)
+		ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
+						      ETH_TP_MDI;
+	else
+		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+	if (hw->phy.mdix == AUTO_ALL_MODES)
+		ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+	else
+		ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
+
 	return 0;
 }
 
@@ -209,11 +237,27 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	/* When SoL/IDER sessions are active, autoneg/speed/duplex
 	 * cannot be changed */
 	if (igb_check_reset_block(hw)) {
-		dev_err(&adapter->pdev->dev, "Cannot change link "
-			"characteristics when SoL/IDER is active.\n");
+		dev_err(&adapter->pdev->dev,
+			"Cannot change link characteristics when SoL/IDER is active.\n");
 		return -EINVAL;
 	}
 
+	/*
+	 * MDI setting is only allowed when autoneg enabled because
+	 * some hardware doesn't allow MDI setting when speed or
+	 * duplex is forced.
+	 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		if (hw->phy.media_type != e1000_media_type_copper)
+			return -EOPNOTSUPP;
+
+		if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
+		    (ecmd->autoneg != AUTONEG_ENABLE)) {
+			dev_err(&adapter->pdev->dev, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+			return -EINVAL;
+		}
+	}
+
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 		msleep(1);
 
@@ -227,12 +271,25 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 			hw->fc.requested_mode = e1000_fc_default;
 	} else {
 		u32 speed = ethtool_cmd_speed(ecmd);
+		/* calling this overrides forced MDI setting */
 		if (igb_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 			clear_bit(__IGB_RESETTING, &adapter->state);
 			return -EINVAL;
 		}
 	}
 
+	/* MDI-X => 2; MDI => 1; Auto => 3 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		/*
+		 * fix up the value for auto (3 => 0) as zero is mapped
+		 * internally to auto
+		 */
+		if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+			hw->phy.mdix = AUTO_ALL_MODES;
+		else
+			hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
+	}
+
 	/* reset the link */
 	if (netif_running(adapter->netdev)) {
 		igb_down(adapter);
@@ -1089,8 +1146,8 @@ static bool reg_pattern_test(struct igb_adapter *adapter, u64 *data,
 		wr32(reg, (_test[pat] & write));
 		val = rd32(reg) & mask;
 		if (val != (_test[pat] & write & mask)) {
-			dev_err(&adapter->pdev->dev, "pattern test reg %04X "
-				"failed: got 0x%08X expected 0x%08X\n",
+			dev_err(&adapter->pdev->dev,
+				"pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
 				reg, val, (_test[pat] & write & mask));
 			*data = reg;
 			return 1;
@@ -1108,8 +1165,8 @@ static bool reg_set_and_check(struct igb_adapter *adapter, u64 *data,
 	wr32(reg, write & mask);
 	val = rd32(reg);
 	if ((write & mask) != (val & mask)) {
-		dev_err(&adapter->pdev->dev, "set/check reg %04X test failed:"
-			" got 0x%08X expected 0x%08X\n", reg,
+		dev_err(&adapter->pdev->dev,
+			"set/check reg %04X test failed: got 0x%08X expected 0x%08X\n", reg,
 			(val & mask), (write & mask));
 		*data = reg;
 		return 1;
@@ -1171,8 +1228,9 @@ static int igb_reg_test(struct igb_adapter *adapter, u64 *data)
 	wr32(E1000_STATUS, toggle);
 	after = rd32(E1000_STATUS) & toggle;
 	if (value != after) {
-		dev_err(&adapter->pdev->dev, "failed STATUS register test "
-			"got: 0x%08X expected: 0x%08X\n", after, value);
+		dev_err(&adapter->pdev->dev,
+			"failed STATUS register test got: 0x%08X expected: 0x%08X\n",
+			after, value);
 		*data = 1;
 		return 1;
 	}
@@ -1468,35 +1526,27 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	u32 ctrl_reg = 0;
-	u16 phy_reg = 0;
 
 	hw->mac.autoneg = false;
 
-	switch (hw->phy.type) {
-	case e1000_phy_m88:
-		/* Auto-MDI/MDIX Off */
-		igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
-		/* reset to update Auto-MDI/MDIX */
-		igb_write_phy_reg(hw, PHY_CONTROL, 0x9140);
-		/* autoneg off */
-		igb_write_phy_reg(hw, PHY_CONTROL, 0x8140);
-		break;
-	case e1000_phy_82580:
-		/* enable MII loopback */
-		igb_write_phy_reg(hw, I82580_PHY_LBK_CTRL, 0x8041);
-		break;
-	case e1000_phy_i210:
-		/* set loopback speed in PHY */
-		igb_read_phy_reg(hw, (GS40G_PAGE_SELECT & GS40G_PAGE_2),
-					&phy_reg);
-		phy_reg |= GS40G_MAC_SPEED_1G;
-		igb_write_phy_reg(hw, (GS40G_PAGE_SELECT & GS40G_PAGE_2),
-					phy_reg);
-		ctrl_reg = rd32(E1000_CTRL_EXT);
-	default:
-		break;
+	if (hw->phy.type == e1000_phy_m88) {
+		if (hw->phy.id != I210_I_PHY_ID) {
+			/* Auto-MDI/MDIX Off */
+			igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
+			/* reset to update Auto-MDI/MDIX */
+			igb_write_phy_reg(hw, PHY_CONTROL, 0x9140);
+			/* autoneg off */
+			igb_write_phy_reg(hw, PHY_CONTROL, 0x8140);
+		} else {
+			/* force 1000, set loopback  */
+			igb_write_phy_reg(hw, I347AT4_PAGE_SELECT, 0);
+			igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
+		}
 	}
 
+	/* add small delay to avoid loopback test failure */
+	msleep(50);
+
 	/* force 1000, set loopback */
 	igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
 
@@ -1509,7 +1559,7 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
 		     E1000_CTRL_FD |	 /* Force Duplex to FULL */
 		     E1000_CTRL_SLU);	 /* Set link up enable bit */
 
-	if ((hw->phy.type == e1000_phy_m88) || (hw->phy.type == e1000_phy_i210))
+	if (hw->phy.type == e1000_phy_m88)
 		ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
 
 	wr32(E1000_CTRL, ctrl_reg);
@@ -1517,11 +1567,10 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
 	/* Disable the receiver on the PHY so when a cable is plugged in, the
 	 * PHY does not begin to autoneg when a cable is reconnected to the NIC.
 	 */
-	if ((hw->phy.type == e1000_phy_m88) || (hw->phy.type == e1000_phy_i210))
+	if (hw->phy.type == e1000_phy_m88)
 		igb_phy_disable_receiver(adapter);
 
-	udelay(500);
-
+	mdelay(500);
 	return 0;
 }
 
@@ -1777,16 +1826,7 @@ static int igb_loopback_test(struct igb_adapter *adapter, u64 *data)
 	 * sessions are active */
 	if (igb_check_reset_block(&adapter->hw)) {
 		dev_err(&adapter->pdev->dev,
-			"Cannot do PHY loopback test "
-			"when SoL/IDER is active.\n");
-		*data = 0;
-		goto out;
-	}
-	if ((adapter->hw.mac.type == e1000_i210)
-		|| (adapter->hw.mac.type == e1000_i210)) {
-		dev_err(&adapter->pdev->dev,
-			"Loopback test not supported "
-			"on this part at this time.\n");
+			"Cannot do PHY loopback test when SoL/IDER is active.\n");
 		*data = 0;
 		goto out;
 	}
@@ -2255,6 +2295,54 @@ static void igb_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 	}
 }
 
+static int igb_get_ts_info(struct net_device *dev,
+			   struct ethtool_ts_info *info)
+{
+	struct igb_adapter *adapter = netdev_priv(dev);
+
+	switch (adapter->hw.mac.type) {
+#ifdef CONFIG_IGB_PTP
+	case e1000_82576:
+	case e1000_82580:
+	case e1000_i350:
+	case e1000_i210:
+	case e1000_i211:
+		info->so_timestamping =
+			SOF_TIMESTAMPING_TX_HARDWARE |
+			SOF_TIMESTAMPING_RX_HARDWARE |
+			SOF_TIMESTAMPING_RAW_HARDWARE;
+
+		if (adapter->ptp_clock)
+			info->phc_index = ptp_clock_index(adapter->ptp_clock);
+		else
+			info->phc_index = -1;
+
+		info->tx_types =
+			(1 << HWTSTAMP_TX_OFF) |
+			(1 << HWTSTAMP_TX_ON);
+
+		info->rx_filters = 1 << HWTSTAMP_FILTER_NONE;
+
+		/* 82576 does not support timestamping all packets. */
+		if (adapter->hw.mac.type >= e1000_82580)
+			info->rx_filters |= 1 << HWTSTAMP_FILTER_ALL;
+		else
+			info->rx_filters |=
+				(1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+				(1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+				(1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+				(1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
+				(1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
+				(1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
+				(1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
+
+		return 0;
+#endif /* CONFIG_IGB_PTP */
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
 static int igb_ethtool_begin(struct net_device *netdev)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
@@ -2268,38 +2356,6 @@ static void igb_ethtool_complete(struct net_device *netdev)
 	pm_runtime_put(&adapter->pdev->dev);
 }
 
-#ifdef CONFIG_IGB_PTP
-static int igb_ethtool_get_ts_info(struct net_device *dev,
-				   struct ethtool_ts_info *info)
-{
-	struct igb_adapter *adapter = netdev_priv(dev);
-
-	info->so_timestamping =
-		SOF_TIMESTAMPING_TX_HARDWARE |
-		SOF_TIMESTAMPING_RX_HARDWARE |
-		SOF_TIMESTAMPING_RAW_HARDWARE;
-
-	if (adapter->ptp_clock)
-		info->phc_index = ptp_clock_index(adapter->ptp_clock);
-	else
-		info->phc_index = -1;
-
-	info->tx_types =
-		(1 << HWTSTAMP_TX_OFF) |
-		(1 << HWTSTAMP_TX_ON);
-
-	info->rx_filters =
-		(1 << HWTSTAMP_FILTER_NONE) |
-		(1 << HWTSTAMP_FILTER_ALL) |
-		(1 << HWTSTAMP_FILTER_SOME) |
-		(1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
-		(1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
-		(1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
-
-	return 0;
-}
-
-#endif
 static const struct ethtool_ops igb_ethtool_ops = {
 	.get_settings           = igb_get_settings,
 	.set_settings           = igb_set_settings,
@@ -2326,11 +2382,9 @@ static const struct ethtool_ops igb_ethtool_ops = {
 	.get_ethtool_stats      = igb_get_ethtool_stats,
 	.get_coalesce           = igb_get_coalesce,
 	.set_coalesce           = igb_set_coalesce,
+	.get_ts_info            = igb_get_ts_info,
 	.begin			= igb_ethtool_begin,
 	.complete		= igb_ethtool_complete,
-#ifdef CONFIG_IGB_PTP
-	.get_ts_info		= igb_ethtool_get_ts_info,
-#endif
 };
 
 void igb_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b7c2d505057..e1ceb37ef12 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -172,8 +172,7 @@ static void igb_check_vf_rate_limit(struct igb_adapter *);
 
 #ifdef CONFIG_PCI_IOV
 static int igb_vf_configure(struct igb_adapter *adapter, int vf);
-static int igb_find_enabled_vfs(struct igb_adapter *adapter);
-static int igb_check_vf_assignment(struct igb_adapter *adapter);
+static bool igb_vfs_are_assigned(struct igb_adapter *adapter);
 #endif
 
 #ifdef CONFIG_PM
@@ -217,7 +216,7 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *,
 static pci_ers_result_t igb_io_slot_reset(struct pci_dev *);
 static void igb_io_resume(struct pci_dev *);
 
-static struct pci_error_handlers igb_err_handler = {
+static const struct pci_error_handlers igb_err_handler = {
 	.error_detected = igb_io_error_detected,
 	.slot_reset = igb_io_slot_reset,
 	.resume = igb_io_resume,
@@ -404,8 +403,8 @@ static void igb_dump(struct igb_adapter *adapter)
 		buffer_info = &tx_ring->tx_buffer_info[tx_ring->next_to_clean];
 		pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n",
 			n, tx_ring->next_to_use, tx_ring->next_to_clean,
-			(u64)buffer_info->dma,
-			buffer_info->length,
+			(u64)dma_unmap_addr(buffer_info, dma),
+			dma_unmap_len(buffer_info, len),
 			buffer_info->next_to_watch,
 			(u64)buffer_info->time_stamp);
 	}
@@ -456,17 +455,18 @@ static void igb_dump(struct igb_adapter *adapter)
 				" %04X  %p %016llX %p%s\n", i,
 				le64_to_cpu(u0->a),
 				le64_to_cpu(u0->b),
-				(u64)buffer_info->dma,
-				buffer_info->length,
+				(u64)dma_unmap_addr(buffer_info, dma),
+				dma_unmap_len(buffer_info, len),
 				buffer_info->next_to_watch,
 				(u64)buffer_info->time_stamp,
 				buffer_info->skb, next_desc);
 
-			if (netif_msg_pktdata(adapter) && buffer_info->dma != 0)
+			if (netif_msg_pktdata(adapter) && buffer_info->skb)
 				print_hex_dump(KERN_INFO, "",
 					DUMP_PREFIX_ADDRESS,
-					16, 1, phys_to_virt(buffer_info->dma),
-					buffer_info->length, true);
+					16, 1, buffer_info->skb->data,
+					dma_unmap_len(buffer_info, len),
+					true);
 		}
 	}
 
@@ -547,18 +547,17 @@ rx_ring_summary:
 					(u64)buffer_info->dma,
 					buffer_info->skb, next_desc);
 
-				if (netif_msg_pktdata(adapter)) {
+				if (netif_msg_pktdata(adapter) &&
+				    buffer_info->dma && buffer_info->skb) {
 					print_hex_dump(KERN_INFO, "",
-						DUMP_PREFIX_ADDRESS,
-						16, 1,
-						phys_to_virt(buffer_info->dma),
-						IGB_RX_HDR_LEN, true);
+						  DUMP_PREFIX_ADDRESS,
+						  16, 1, buffer_info->skb->data,
+						  IGB_RX_HDR_LEN, true);
 					print_hex_dump(KERN_INFO, "",
 					  DUMP_PREFIX_ADDRESS,
 					  16, 1,
-					  phys_to_virt(
-					    buffer_info->page_dma +
-					    buffer_info->page_offset),
+					  page_address(buffer_info->page) +
+						      buffer_info->page_offset,
 					  PAGE_SIZE/2, true);
 				}
 			}
@@ -684,52 +683,29 @@ static int igb_alloc_queues(struct igb_adapter *adapter)
 {
 	struct igb_ring *ring;
 	int i;
-	int orig_node = adapter->node;
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
-		if (orig_node == -1) {
-			int cur_node = next_online_node(adapter->node);
-			if (cur_node == MAX_NUMNODES)
-				cur_node = first_online_node;
-			adapter->node = cur_node;
-		}
-		ring = kzalloc_node(sizeof(struct igb_ring), GFP_KERNEL,
-				    adapter->node);
-		if (!ring)
-			ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
+		ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
 		if (!ring)
 			goto err;
 		ring->count = adapter->tx_ring_count;
 		ring->queue_index = i;
 		ring->dev = &adapter->pdev->dev;
 		ring->netdev = adapter->netdev;
-		ring->numa_node = adapter->node;
 		/* For 82575, context index must be unique per ring. */
 		if (adapter->hw.mac.type == e1000_82575)
 			set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags);
 		adapter->tx_ring[i] = ring;
 	}
-	/* Restore the adapter's original node */
-	adapter->node = orig_node;
 
 	for (i = 0; i < adapter->num_rx_queues; i++) {
-		if (orig_node == -1) {
-			int cur_node = next_online_node(adapter->node);
-			if (cur_node == MAX_NUMNODES)
-				cur_node = first_online_node;
-			adapter->node = cur_node;
-		}
-		ring = kzalloc_node(sizeof(struct igb_ring), GFP_KERNEL,
-				    adapter->node);
-		if (!ring)
-			ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
+		ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL);
 		if (!ring)
 			goto err;
 		ring->count = adapter->rx_ring_count;
 		ring->queue_index = i;
 		ring->dev = &adapter->pdev->dev;
 		ring->netdev = adapter->netdev;
-		ring->numa_node = adapter->node;
 		/* set flag indicating ring supports SCTP checksum offload */
 		if (adapter->hw.mac.type >= e1000_82576)
 			set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags);
@@ -743,16 +719,12 @@ static int igb_alloc_queues(struct igb_adapter *adapter)
 
 		adapter->rx_ring[i] = ring;
 	}
-	/* Restore the adapter's original node */
-	adapter->node = orig_node;
 
 	igb_cache_ring_register(adapter);
 
 	return 0;
 
 err:
-	/* Restore the adapter's original node */
-	adapter->node = orig_node;
 	igb_free_queues(adapter);
 
 	return -ENOMEM;
@@ -1118,24 +1090,10 @@ static int igb_alloc_q_vectors(struct igb_adapter *adapter)
 	struct igb_q_vector *q_vector;
 	struct e1000_hw *hw = &adapter->hw;
 	int v_idx;
-	int orig_node = adapter->node;
 
 	for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) {
-		if ((adapter->num_q_vectors == (adapter->num_rx_queues +
-						adapter->num_tx_queues)) &&
-		    (adapter->num_rx_queues == v_idx))
-			adapter->node = orig_node;
-		if (orig_node == -1) {
-			int cur_node = next_online_node(adapter->node);
-			if (cur_node == MAX_NUMNODES)
-				cur_node = first_online_node;
-			adapter->node = cur_node;
-		}
-		q_vector = kzalloc_node(sizeof(struct igb_q_vector), GFP_KERNEL,
-					adapter->node);
-		if (!q_vector)
-			q_vector = kzalloc(sizeof(struct igb_q_vector),
-					   GFP_KERNEL);
+		q_vector = kzalloc(sizeof(struct igb_q_vector),
+				   GFP_KERNEL);
 		if (!q_vector)
 			goto err_out;
 		q_vector->adapter = adapter;
@@ -1144,14 +1102,10 @@ static int igb_alloc_q_vectors(struct igb_adapter *adapter)
 		netif_napi_add(adapter->netdev, &q_vector->napi, igb_poll, 64);
 		adapter->q_vector[v_idx] = q_vector;
 	}
-	/* Restore the adapter's original node */
-	adapter->node = orig_node;
 
 	return 0;
 
 err_out:
-	/* Restore the adapter's original node */
-	adapter->node = orig_node;
 	igb_free_q_vectors(adapter);
 	return -ENOMEM;
 }
@@ -1752,6 +1706,11 @@ void igb_reset(struct igb_adapter *adapter)
 	/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
 	wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE);
 
+#ifdef CONFIG_IGB_PTP
+	/* Re-enable PTP, where applicable. */
+	igb_ptp_reset(adapter);
+#endif /* CONFIG_IGB_PTP */
+
 	igb_get_phy_info(hw);
 }
 
@@ -2181,11 +2140,12 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	}
 
 #endif
+
 #ifdef CONFIG_IGB_PTP
 	/* do hw tstamp init after resetting */
 	igb_ptp_init(adapter);
+#endif /* CONFIG_IGB_PTP */
 
-#endif
 	dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
 	/* print bus type/speed/width info */
 	dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
@@ -2260,9 +2220,9 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 
 	pm_runtime_get_noresume(&pdev->dev);
 #ifdef CONFIG_IGB_PTP
-	igb_ptp_remove(adapter);
+	igb_ptp_stop(adapter);
+#endif /* CONFIG_IGB_PTP */
 
-#endif
 	/*
 	 * The watchdog timer may be rescheduled, so explicitly
 	 * disable watchdog from being rescheduled.
@@ -2295,11 +2255,11 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 	/* reclaim resources allocated to VFs */
 	if (adapter->vf_data) {
 		/* disable iov and allow time for transactions to clear */
-		if (!igb_check_vf_assignment(adapter)) {
+		if (igb_vfs_are_assigned(adapter)) {
+			dev_info(&pdev->dev, "Unloading driver while VFs are assigned - VFs will not be deallocated\n");
+		} else {
 			pci_disable_sriov(pdev);
 			msleep(500);
-		} else {
-			dev_info(&pdev->dev, "VF(s) assigned to guests!\n");
 		}
 
 		kfree(adapter->vf_data);
@@ -2339,7 +2299,7 @@ static void __devinit igb_probe_vfs(struct igb_adapter * adapter)
 #ifdef CONFIG_PCI_IOV
 	struct pci_dev *pdev = adapter->pdev;
 	struct e1000_hw *hw = &adapter->hw;
-	int old_vfs = igb_find_enabled_vfs(adapter);
+	int old_vfs = pci_num_vf(adapter->pdev);
 	int i;
 
 	/* Virtualization features not supported on i210 family. */
@@ -2419,8 +2379,6 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
 				  VLAN_HLEN;
 	adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
 
-	adapter->node = -1;
-
 	spin_lock_init(&adapter->stats64_lock);
 #ifdef CONFIG_PCI_IOV
 	switch (hw->mac.type) {
@@ -2667,13 +2625,11 @@ static int igb_close(struct net_device *netdev)
 int igb_setup_tx_resources(struct igb_ring *tx_ring)
 {
 	struct device *dev = tx_ring->dev;
-	int orig_node = dev_to_node(dev);
 	int size;
 
 	size = sizeof(struct igb_tx_buffer) * tx_ring->count;
-	tx_ring->tx_buffer_info = vzalloc_node(size, tx_ring->numa_node);
-	if (!tx_ring->tx_buffer_info)
-		tx_ring->tx_buffer_info = vzalloc(size);
+
+	tx_ring->tx_buffer_info = vzalloc(size);
 	if (!tx_ring->tx_buffer_info)
 		goto err;
 
@@ -2681,18 +2637,10 @@ int igb_setup_tx_resources(struct igb_ring *tx_ring)
 	tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
 
-	set_dev_node(dev, tx_ring->numa_node);
 	tx_ring->desc = dma_alloc_coherent(dev,
 					   tx_ring->size,
 					   &tx_ring->dma,
 					   GFP_KERNEL);
-	set_dev_node(dev, orig_node);
-	if (!tx_ring->desc)
-		tx_ring->desc = dma_alloc_coherent(dev,
-						   tx_ring->size,
-						   &tx_ring->dma,
-						   GFP_KERNEL);
-
 	if (!tx_ring->desc)
 		goto err;
 
@@ -2703,8 +2651,8 @@ int igb_setup_tx_resources(struct igb_ring *tx_ring)
 
 err:
 	vfree(tx_ring->tx_buffer_info);
-	dev_err(dev,
-		"Unable to allocate memory for the transmit descriptor ring\n");
+	tx_ring->tx_buffer_info = NULL;
+	dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n");
 	return -ENOMEM;
 }
 
@@ -2821,34 +2769,23 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 int igb_setup_rx_resources(struct igb_ring *rx_ring)
 {
 	struct device *dev = rx_ring->dev;
-	int orig_node = dev_to_node(dev);
-	int size, desc_len;
+	int size;
 
 	size = sizeof(struct igb_rx_buffer) * rx_ring->count;
-	rx_ring->rx_buffer_info = vzalloc_node(size, rx_ring->numa_node);
-	if (!rx_ring->rx_buffer_info)
-		rx_ring->rx_buffer_info = vzalloc(size);
+
+	rx_ring->rx_buffer_info = vzalloc(size);
 	if (!rx_ring->rx_buffer_info)
 		goto err;
 
-	desc_len = sizeof(union e1000_adv_rx_desc);
 
 	/* Round up to nearest 4K */
-	rx_ring->size = rx_ring->count * desc_len;
+	rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc);
 	rx_ring->size = ALIGN(rx_ring->size, 4096);
 
-	set_dev_node(dev, rx_ring->numa_node);
 	rx_ring->desc = dma_alloc_coherent(dev,
 					   rx_ring->size,
 					   &rx_ring->dma,
 					   GFP_KERNEL);
-	set_dev_node(dev, orig_node);
-	if (!rx_ring->desc)
-		rx_ring->desc = dma_alloc_coherent(dev,
-						   rx_ring->size,
-						   &rx_ring->dma,
-						   GFP_KERNEL);
-
 	if (!rx_ring->desc)
 		goto err;
 
@@ -2860,8 +2797,7 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring)
 err:
 	vfree(rx_ring->rx_buffer_info);
 	rx_ring->rx_buffer_info = NULL;
-	dev_err(dev, "Unable to allocate memory for the receive descriptor"
-		" ring\n");
+	dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n");
 	return -ENOMEM;
 }
 
@@ -2899,57 +2835,48 @@ static void igb_setup_mrqc(struct igb_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	u32 mrqc, rxcsum;
-	u32 j, num_rx_queues, shift = 0, shift2 = 0;
-	union e1000_reta {
-		u32 dword;
-		u8  bytes[4];
-	} reta;
-	static const u8 rsshash[40] = {
-		0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, 0x41, 0x67,
-		0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, 0xd0, 0xca, 0x2b, 0xcb,
-		0xae, 0x7b, 0x30, 0xb4,	0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30,
-		0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa };
+	u32 j, num_rx_queues, shift = 0;
+	static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741,
+					0xB08FA343, 0xCB2BCAD0, 0xB4307BAE,
+					0xA32DCB77, 0x0CF23080, 0x3BB7426A,
+					0xFA01ACBE };
 
 	/* Fill out hash function seeds */
-	for (j = 0; j < 10; j++) {
-		u32 rsskey = rsshash[(j * 4)];
-		rsskey |= rsshash[(j * 4) + 1] << 8;
-		rsskey |= rsshash[(j * 4) + 2] << 16;
-		rsskey |= rsshash[(j * 4) + 3] << 24;
-		array_wr32(E1000_RSSRK(0), j, rsskey);
-	}
+	for (j = 0; j < 10; j++)
+		wr32(E1000_RSSRK(j), rsskey[j]);
 
 	num_rx_queues = adapter->rss_queues;
 
-	if (adapter->vfs_allocated_count) {
-		/* 82575 and 82576 supports 2 RSS queues for VMDq */
-		switch (hw->mac.type) {
-		case e1000_i350:
-		case e1000_82580:
-			num_rx_queues = 1;
-			shift = 0;
-			break;
-		case e1000_82576:
+	switch (hw->mac.type) {
+	case e1000_82575:
+		shift = 6;
+		break;
+	case e1000_82576:
+		/* 82576 supports 2 RSS queues for SR-IOV */
+		if (adapter->vfs_allocated_count) {
 			shift = 3;
 			num_rx_queues = 2;
-			break;
-		case e1000_82575:
-			shift = 2;
-			shift2 = 6;
-		default:
-			break;
 		}
-	} else {
-		if (hw->mac.type == e1000_82575)
-			shift = 6;
+		break;
+	default:
+		break;
 	}
 
-	for (j = 0; j < (32 * 4); j++) {
-		reta.bytes[j & 3] = (j % num_rx_queues) << shift;
-		if (shift2)
-			reta.bytes[j & 3] |= num_rx_queues << shift2;
-		if ((j & 3) == 3)
-			wr32(E1000_RETA(j >> 2), reta.dword);
+	/*
+	 * Populate the indirection table 4 entries at a time.  To do this
+	 * we are generating the results for n and n+2 and then interleaving
+	 * those with the results with n+1 and n+3.
+	 */
+	for (j = 0; j < 32; j++) {
+		/* first pass generates n and n+2 */
+		u32 base = ((j * 0x00040004) + 0x00020000) * num_rx_queues;
+		u32 reta = (base & 0x07800780) >> (7 - shift);
+
+		/* second pass generates n+1 and n+3 */
+		base += 0x00010001 * num_rx_queues;
+		reta |= (base & 0x07800780) << (1 + shift);
+
+		wr32(E1000_RETA(j), reta);
 	}
 
 	/*
@@ -3185,8 +3112,10 @@ void igb_configure_rx_ring(struct igb_adapter *adapter,
 	srrctl |= (PAGE_SIZE / 2) >> E1000_SRRCTL_BSIZEPKT_SHIFT;
 #endif
 	srrctl |= E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
+#ifdef CONFIG_IGB_PTP
 	if (hw->mac.type >= e1000_82580)
 		srrctl |= E1000_SRRCTL_TIMESTAMP;
+#endif /* CONFIG_IGB_PTP */
 	/* Only set Drop Enable if we are supporting multiple queues */
 	if (adapter->vfs_allocated_count || adapter->num_rx_queues > 1)
 		srrctl |= E1000_SRRCTL_DROP_EN;
@@ -3270,20 +3199,20 @@ void igb_unmap_and_free_tx_resource(struct igb_ring *ring,
 {
 	if (tx_buffer->skb) {
 		dev_kfree_skb_any(tx_buffer->skb);
-		if (tx_buffer->dma)
+		if (dma_unmap_len(tx_buffer, len))
 			dma_unmap_single(ring->dev,
-					 tx_buffer->dma,
-					 tx_buffer->length,
+					 dma_unmap_addr(tx_buffer, dma),
+					 dma_unmap_len(tx_buffer, len),
 					 DMA_TO_DEVICE);
-	} else if (tx_buffer->dma) {
+	} else if (dma_unmap_len(tx_buffer, len)) {
 		dma_unmap_page(ring->dev,
-			       tx_buffer->dma,
-			       tx_buffer->length,
+			       dma_unmap_addr(tx_buffer, dma),
+			       dma_unmap_len(tx_buffer, len),
 			       DMA_TO_DEVICE);
 	}
 	tx_buffer->next_to_watch = NULL;
 	tx_buffer->skb = NULL;
-	tx_buffer->dma = 0;
+	dma_unmap_len_set(tx_buffer, len, 0);
 	/* buffer_info must be completely set up in the transmit path */
 }
 
@@ -4230,9 +4159,11 @@ static __le32 igb_tx_cmd_type(u32 tx_flags)
 	if (tx_flags & IGB_TX_FLAGS_VLAN)
 		cmd_type |= cpu_to_le32(E1000_ADVTXD_DCMD_VLE);
 
+#ifdef CONFIG_IGB_PTP
 	/* set timestamp bit if present */
-	if (tx_flags & IGB_TX_FLAGS_TSTAMP)
+	if (unlikely(tx_flags & IGB_TX_FLAGS_TSTAMP))
 		cmd_type |= cpu_to_le32(E1000_ADVTXD_MAC_TSTAMP);
+#endif /* CONFIG_IGB_PTP */
 
 	/* set segmentation bits for TSO */
 	if (tx_flags & IGB_TX_FLAGS_TSO)
@@ -4276,7 +4207,7 @@ static void igb_tx_map(struct igb_ring *tx_ring,
 		       const u8 hdr_len)
 {
 	struct sk_buff *skb = first->skb;
-	struct igb_tx_buffer *tx_buffer_info;
+	struct igb_tx_buffer *tx_buffer;
 	union e1000_adv_tx_desc *tx_desc;
 	dma_addr_t dma;
 	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
@@ -4297,8 +4228,8 @@ static void igb_tx_map(struct igb_ring *tx_ring,
 		goto dma_error;
 
 	/* record length, and DMA address */
-	first->length = size;
-	first->dma = dma;
+	dma_unmap_len_set(first, len, size);
+	dma_unmap_addr_set(first, dma, dma);
 	tx_desc->read.buffer_addr = cpu_to_le64(dma);
 
 	for (;;) {
@@ -4340,9 +4271,9 @@ static void igb_tx_map(struct igb_ring *tx_ring,
 		if (dma_mapping_error(tx_ring->dev, dma))
 			goto dma_error;
 
-		tx_buffer_info = &tx_ring->tx_buffer_info[i];
-		tx_buffer_info->length = size;
-		tx_buffer_info->dma = dma;
+		tx_buffer = &tx_ring->tx_buffer_info[i];
+		dma_unmap_len_set(tx_buffer, len, size);
+		dma_unmap_addr_set(tx_buffer, dma, dma);
 
 		tx_desc->read.olinfo_status = 0;
 		tx_desc->read.buffer_addr = cpu_to_le64(dma);
@@ -4393,9 +4324,9 @@ dma_error:
 
 	/* clear dma mappings for failed tx_buffer_info map */
 	for (;;) {
-		tx_buffer_info = &tx_ring->tx_buffer_info[i];
-		igb_unmap_and_free_tx_resource(tx_ring, tx_buffer_info);
-		if (tx_buffer_info == first)
+		tx_buffer = &tx_ring->tx_buffer_info[i];
+		igb_unmap_and_free_tx_resource(tx_ring, tx_buffer);
+		if (tx_buffer == first)
 			break;
 		if (i == 0)
 			i = tx_ring->count;
@@ -4441,6 +4372,9 @@ static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size)
 netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
 				struct igb_ring *tx_ring)
 {
+#ifdef CONFIG_IGB_PTP
+	struct igb_adapter *adapter = netdev_priv(tx_ring->netdev);
+#endif /* CONFIG_IGB_PTP */
 	struct igb_tx_buffer *first;
 	int tso;
 	u32 tx_flags = 0;
@@ -4463,10 +4397,17 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb,
 	first->bytecount = skb->len;
 	first->gso_segs = 1;
 
-	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
+#ifdef CONFIG_IGB_PTP
+	if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+		     !(adapter->ptp_tx_skb))) {
 		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
 		tx_flags |= IGB_TX_FLAGS_TSTAMP;
+
+		adapter->ptp_tx_skb = skb_get(skb);
+		if (adapter->hw.mac.type == e1000_82576)
+			schedule_work(&adapter->ptp_tx_work);
 	}
+#endif /* CONFIG_IGB_PTP */
 
 	if (vlan_tx_tag_present(skb)) {
 		tx_flags |= IGB_TX_FLAGS_VLAN;
@@ -4662,11 +4603,13 @@ void igb_update_stats(struct igb_adapter *adapter,
 	bytes = 0;
 	packets = 0;
 	for (i = 0; i < adapter->num_rx_queues; i++) {
-		u32 rqdpc_tmp = rd32(E1000_RQDPC(i)) & 0x0FFF;
+		u32 rqdpc = rd32(E1000_RQDPC(i));
 		struct igb_ring *ring = adapter->rx_ring[i];
 
-		ring->rx_stats.drops += rqdpc_tmp;
-		net_stats->rx_fifo_errors += rqdpc_tmp;
+		if (rqdpc) {
+			ring->rx_stats.drops += rqdpc;
+			net_stats->rx_fifo_errors += rqdpc;
+		}
 
 		do {
 			start = u64_stats_fetch_begin_bh(&ring->rx_syncp);
@@ -4756,7 +4699,11 @@ void igb_update_stats(struct igb_adapter *adapter,
 	reg = rd32(E1000_CTRL_EXT);
 	if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) {
 		adapter->stats.rxerrc += rd32(E1000_RXERRC);
-		adapter->stats.tncrs += rd32(E1000_TNCRS);
+
+		/* this stat has invalid values on i210/i211 */
+		if ((hw->mac.type != e1000_i210) &&
+		    (hw->mac.type != e1000_i211))
+			adapter->stats.tncrs += rd32(E1000_TNCRS);
 	}
 
 	adapter->stats.tsctc += rd32(E1000_TSCTC);
@@ -4853,6 +4800,19 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+#ifdef CONFIG_IGB_PTP
+	if (icr & E1000_ICR_TS) {
+		u32 tsicr = rd32(E1000_TSICR);
+
+		if (tsicr & E1000_TSICR_TXTS) {
+			/* acknowledge the interrupt */
+			wr32(E1000_TSICR, E1000_TSICR_TXTS);
+			/* retrieve hardware timestamp */
+			schedule_work(&adapter->ptp_tx_work);
+		}
+	}
+#endif /* CONFIG_IGB_PTP */
+
 	wr32(E1000_EIMS, adapter->eims_other);
 
 	return IRQ_HANDLED;
@@ -5003,102 +4963,43 @@ static int igb_notify_dca(struct notifier_block *nb, unsigned long event,
 static int igb_vf_configure(struct igb_adapter *adapter, int vf)
 {
 	unsigned char mac_addr[ETH_ALEN];
-	struct pci_dev *pdev = adapter->pdev;
-	struct e1000_hw *hw = &adapter->hw;
-	struct pci_dev *pvfdev;
-	unsigned int device_id;
-	u16 thisvf_devfn;
 
 	eth_random_addr(mac_addr);
 	igb_set_vf_mac(adapter, vf, mac_addr);
 
-	switch (adapter->hw.mac.type) {
-	case e1000_82576:
-		device_id = IGB_82576_VF_DEV_ID;
-		/* VF Stride for 82576 is 2 */
-		thisvf_devfn = (pdev->devfn + 0x80 + (vf << 1)) |
-			(pdev->devfn & 1);
-		break;
-	case e1000_i350:
-		device_id = IGB_I350_VF_DEV_ID;
-		/* VF Stride for I350 is 4 */
-		thisvf_devfn = (pdev->devfn + 0x80 + (vf << 2)) |
-				(pdev->devfn & 3);
-		break;
-	default:
-		device_id = 0;
-		thisvf_devfn = 0;
-		break;
-	}
-
-	pvfdev = pci_get_device(hw->vendor_id, device_id, NULL);
-	while (pvfdev) {
-		if (pvfdev->devfn == thisvf_devfn)
-			break;
-		pvfdev = pci_get_device(hw->vendor_id,
-					device_id, pvfdev);
-	}
-
-	if (pvfdev)
-		adapter->vf_data[vf].vfdev = pvfdev;
-	else
-		dev_err(&pdev->dev,
-			"Couldn't find pci dev ptr for VF %4.4x\n",
-			thisvf_devfn);
-	return pvfdev != NULL;
+	return 0;
 }
 
-static int igb_find_enabled_vfs(struct igb_adapter *adapter)
+static bool igb_vfs_are_assigned(struct igb_adapter *adapter)
 {
-	struct e1000_hw *hw = &adapter->hw;
 	struct pci_dev *pdev = adapter->pdev;
-	struct pci_dev *pvfdev;
-	u16 vf_devfn = 0;
-	u16 vf_stride;
-	unsigned int device_id;
-	int vfs_found = 0;
+	struct pci_dev *vfdev;
+	int dev_id;
 
 	switch (adapter->hw.mac.type) {
 	case e1000_82576:
-		device_id = IGB_82576_VF_DEV_ID;
-		/* VF Stride for 82576 is 2 */
-		vf_stride = 2;
+		dev_id = IGB_82576_VF_DEV_ID;
 		break;
 	case e1000_i350:
-		device_id = IGB_I350_VF_DEV_ID;
-		/* VF Stride for I350 is 4 */
-		vf_stride = 4;
+		dev_id = IGB_I350_VF_DEV_ID;
 		break;
 	default:
-		device_id = 0;
-		vf_stride = 0;
-		break;
-	}
-
-	vf_devfn = pdev->devfn + 0x80;
-	pvfdev = pci_get_device(hw->vendor_id, device_id, NULL);
-	while (pvfdev) {
-		if (pvfdev->devfn == vf_devfn &&
-		    (pvfdev->bus->number >= pdev->bus->number))
-			vfs_found++;
-		vf_devfn += vf_stride;
-		pvfdev = pci_get_device(hw->vendor_id,
-					device_id, pvfdev);
+		return false;
 	}
 
-	return vfs_found;
-}
-
-static int igb_check_vf_assignment(struct igb_adapter *adapter)
-{
-	int i;
-	for (i = 0; i < adapter->vfs_allocated_count; i++) {
-		if (adapter->vf_data[i].vfdev) {
-			if (adapter->vf_data[i].vfdev->dev_flags &
-			    PCI_DEV_FLAGS_ASSIGNED)
+	/* loop through all the VFs to see if we own any that are assigned */
+	vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL);
+	while (vfdev) {
+		/* if we don't own it we don't care */
+		if (vfdev->is_virtfn && vfdev->physfn == pdev) {
+			/* if it is assigned we cannot release it */
+			if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
 				return true;
 		}
+
+		vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev);
 	}
+
 	return false;
 }
 
@@ -5644,6 +5545,19 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+#ifdef CONFIG_IGB_PTP
+	if (icr & E1000_ICR_TS) {
+		u32 tsicr = rd32(E1000_TSICR);
+
+		if (tsicr & E1000_TSICR_TXTS) {
+			/* acknowledge the interrupt */
+			wr32(E1000_TSICR, E1000_TSICR_TXTS);
+			/* retrieve hardware timestamp */
+			schedule_work(&adapter->ptp_tx_work);
+		}
+	}
+#endif /* CONFIG_IGB_PTP */
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
@@ -5685,6 +5599,19 @@ static irqreturn_t igb_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+#ifdef CONFIG_IGB_PTP
+	if (icr & E1000_ICR_TS) {
+		u32 tsicr = rd32(E1000_TSICR);
+
+		if (tsicr & E1000_TSICR_TXTS) {
+			/* acknowledge the interrupt */
+			wr32(E1000_TSICR, E1000_TSICR_TXTS);
+			/* retrieve hardware timestamp */
+			schedule_work(&adapter->ptp_tx_work);
+		}
+	}
+#endif /* CONFIG_IGB_PTP */
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
@@ -5744,37 +5671,6 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	return 0;
 }
 
-#ifdef CONFIG_IGB_PTP
-/**
- * igb_tx_hwtstamp - utility function which checks for TX time stamp
- * @q_vector: pointer to q_vector containing needed info
- * @buffer: pointer to igb_tx_buffer structure
- *
- * If we were asked to do hardware stamping and such a time stamp is
- * available, then it must have been for this skb here because we only
- * allow only one such packet into the queue.
- */
-static void igb_tx_hwtstamp(struct igb_q_vector *q_vector,
-			    struct igb_tx_buffer *buffer_info)
-{
-	struct igb_adapter *adapter = q_vector->adapter;
-	struct e1000_hw *hw = &adapter->hw;
-	struct skb_shared_hwtstamps shhwtstamps;
-	u64 regval;
-
-	/* if skb does not support hw timestamp or TX stamp not valid exit */
-	if (likely(!(buffer_info->tx_flags & IGB_TX_FLAGS_TSTAMP)) ||
-	    !(rd32(E1000_TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID))
-		return;
-
-	regval = rd32(E1000_TXSTMPL);
-	regval |= (u64)rd32(E1000_TXSTMPH) << 32;
-
-	igb_systim_to_hwtstamp(adapter, &shhwtstamps, regval);
-	skb_tstamp_tx(buffer_info->skb, &shhwtstamps);
-}
-
-#endif
 /**
  * igb_clean_tx_irq - Reclaim resources after transmit completes
  * @q_vector: pointer to q_vector containing needed info
@@ -5786,7 +5682,7 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 	struct igb_adapter *adapter = q_vector->adapter;
 	struct igb_ring *tx_ring = q_vector->tx.ring;
 	struct igb_tx_buffer *tx_buffer;
-	union e1000_adv_tx_desc *tx_desc, *eop_desc;
+	union e1000_adv_tx_desc *tx_desc;
 	unsigned int total_bytes = 0, total_packets = 0;
 	unsigned int budget = q_vector->tx.work_limit;
 	unsigned int i = tx_ring->next_to_clean;
@@ -5798,16 +5694,16 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 	tx_desc = IGB_TX_DESC(tx_ring, i);
 	i -= tx_ring->count;
 
-	for (; budget; budget--) {
-		eop_desc = tx_buffer->next_to_watch;
-
-		/* prevent any other reads prior to eop_desc */
-		rmb();
+	do {
+		union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
 
 		/* if next_to_watch is not set then there is no work pending */
 		if (!eop_desc)
 			break;
 
+		/* prevent any other reads prior to eop_desc */
+		rmb();
+
 		/* if DD is not set pending work has not been completed */
 		if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)))
 			break;
@@ -5819,25 +5715,21 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 		total_bytes += tx_buffer->bytecount;
 		total_packets += tx_buffer->gso_segs;
 
-#ifdef CONFIG_IGB_PTP
-		/* retrieve hardware timestamp */
-		igb_tx_hwtstamp(q_vector, tx_buffer);
-
-#endif
 		/* free the skb */
 		dev_kfree_skb_any(tx_buffer->skb);
-		tx_buffer->skb = NULL;
 
 		/* unmap skb header data */
 		dma_unmap_single(tx_ring->dev,
-				 tx_buffer->dma,
-				 tx_buffer->length,
+				 dma_unmap_addr(tx_buffer, dma),
+				 dma_unmap_len(tx_buffer, len),
 				 DMA_TO_DEVICE);
 
+		/* clear tx_buffer data */
+		tx_buffer->skb = NULL;
+		dma_unmap_len_set(tx_buffer, len, 0);
+
 		/* clear last DMA location and unmap remaining buffers */
 		while (tx_desc != eop_desc) {
-			tx_buffer->dma = 0;
-
 			tx_buffer++;
 			tx_desc++;
 			i++;
@@ -5848,17 +5740,15 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 			}
 
 			/* unmap any remaining paged data */
-			if (tx_buffer->dma) {
+			if (dma_unmap_len(tx_buffer, len)) {
 				dma_unmap_page(tx_ring->dev,
-					       tx_buffer->dma,
-					       tx_buffer->length,
+					       dma_unmap_addr(tx_buffer, dma),
+					       dma_unmap_len(tx_buffer, len),
 					       DMA_TO_DEVICE);
+				dma_unmap_len_set(tx_buffer, len, 0);
 			}
 		}
 
-		/* clear last DMA location */
-		tx_buffer->dma = 0;
-
 		/* move us one more past the eop_desc for start of next pkt */
 		tx_buffer++;
 		tx_desc++;
@@ -5868,7 +5758,13 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 			tx_buffer = tx_ring->tx_buffer_info;
 			tx_desc = IGB_TX_DESC(tx_ring, 0);
 		}
-	}
+
+		/* issue prefetch for next Tx descriptor */
+		prefetch(tx_desc);
+
+		/* update budget accounting */
+		budget--;
+	} while (likely(budget));
 
 	netdev_tx_completed_queue(txring_txq(tx_ring),
 				  total_packets, total_bytes);
@@ -5884,12 +5780,10 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 	if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) {
 		struct e1000_hw *hw = &adapter->hw;
 
-		eop_desc = tx_buffer->next_to_watch;
-
 		/* Detect a transmit hang in hardware, this serializes the
 		 * check with the clearing of time_stamp and movement of i */
 		clear_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags);
-		if (eop_desc &&
+		if (tx_buffer->next_to_watch &&
 		    time_after(jiffies, tx_buffer->time_stamp +
 			       (adapter->tx_timeout_factor * HZ)) &&
 		    !(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) {
@@ -5913,9 +5807,9 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
 				tx_ring->next_to_use,
 				tx_ring->next_to_clean,
 				tx_buffer->time_stamp,
-				eop_desc,
+				tx_buffer->next_to_watch,
 				jiffies,
-				eop_desc->wb.status);
+				tx_buffer->next_to_watch->wb.status);
 			netif_stop_subqueue(tx_ring->netdev,
 					    tx_ring->queue_index);
 
@@ -5995,47 +5889,6 @@ static inline void igb_rx_hash(struct igb_ring *ring,
 		skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);
 }
 
-#ifdef CONFIG_IGB_PTP
-static void igb_rx_hwtstamp(struct igb_q_vector *q_vector,
-			    union e1000_adv_rx_desc *rx_desc,
-			    struct sk_buff *skb)
-{
-	struct igb_adapter *adapter = q_vector->adapter;
-	struct e1000_hw *hw = &adapter->hw;
-	u64 regval;
-
-	if (!igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP |
-				       E1000_RXDADV_STAT_TS))
-		return;
-
-	/*
-	 * If this bit is set, then the RX registers contain the time stamp. No
-	 * other packet will be time stamped until we read these registers, so
-	 * read the registers to make them available again. Because only one
-	 * packet can be time stamped at a time, we know that the register
-	 * values must belong to this one here and therefore we don't need to
-	 * compare any of the additional attributes stored for it.
-	 *
-	 * If nothing went wrong, then it should have a shared tx_flags that we
-	 * can turn into a skb_shared_hwtstamps.
-	 */
-	if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
-		u32 *stamp = (u32 *)skb->data;
-		regval = le32_to_cpu(*(stamp + 2));
-		regval |= (u64)le32_to_cpu(*(stamp + 3)) << 32;
-		skb_pull(skb, IGB_TS_HDR_LEN);
-	} else {
-		if(!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID))
-			return;
-
-		regval = rd32(E1000_RXSTMPL);
-		regval |= (u64)rd32(E1000_RXSTMPH) << 32;
-	}
-
-	igb_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval);
-}
-
-#endif
 static void igb_rx_vlan(struct igb_ring *ring,
 			union e1000_adv_rx_desc *rx_desc,
 			struct sk_buff *skb)
@@ -6147,8 +6000,8 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget)
 		}
 
 #ifdef CONFIG_IGB_PTP
-		igb_rx_hwtstamp(q_vector, rx_desc, skb);
-#endif
+		igb_ptp_rx_hwtstamp(q_vector, rx_desc, skb);
+#endif /* CONFIG_IGB_PTP */
 		igb_rx_hash(rx_ring, rx_desc, skb);
 		igb_rx_checksum(rx_ring, rx_desc, skb);
 		igb_rx_vlan(rx_ring, rx_desc, skb);
@@ -6342,181 +6195,6 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 }
 
 /**
- * igb_hwtstamp_ioctl - control hardware time stamping
- * @netdev:
- * @ifreq:
- * @cmd:
- *
- * Outgoing time stamping can be enabled and disabled. Play nice and
- * disable it when requested, although it shouldn't case any overhead
- * when no packet needs it. At most one packet in the queue may be
- * marked for time stamping, otherwise it would be impossible to tell
- * for sure to which packet the hardware time stamp belongs.
- *
- * Incoming time stamping has to be configured via the hardware
- * filters. Not all combinations are supported, in particular event
- * type has to be specified. Matching the kind of event packet is
- * not supported, with the exception of "all V2 events regardless of
- * level 2 or 4".
- *
- **/
-static int igb_hwtstamp_ioctl(struct net_device *netdev,
-			      struct ifreq *ifr, int cmd)
-{
-	struct igb_adapter *adapter = netdev_priv(netdev);
-	struct e1000_hw *hw = &adapter->hw;
-	struct hwtstamp_config config;
-	u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED;
-	u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED;
-	u32 tsync_rx_cfg = 0;
-	bool is_l4 = false;
-	bool is_l2 = false;
-	u32 regval;
-
-	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
-		return -EFAULT;
-
-	/* reserved for future extensions */
-	if (config.flags)
-		return -EINVAL;
-
-	switch (config.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		tsync_tx_ctl = 0;
-	case HWTSTAMP_TX_ON:
-		break;
-	default:
-		return -ERANGE;
-	}
-
-	switch (config.rx_filter) {
-	case HWTSTAMP_FILTER_NONE:
-		tsync_rx_ctl = 0;
-		break;
-	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
-	case HWTSTAMP_FILTER_ALL:
-		/*
-		 * register TSYNCRXCFG must be set, therefore it is not
-		 * possible to time stamp both Sync and Delay_Req messages
-		 * => fall back to time stamping all packets
-		 */
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL;
-		config.rx_filter = HWTSTAMP_FILTER_ALL;
-		break;
-	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1;
-		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE;
-		is_l4 = true;
-		break;
-	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1;
-		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE;
-		is_l4 = true;
-		break;
-	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
-	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
-		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE;
-		is_l2 = true;
-		is_l4 = true;
-		config.rx_filter = HWTSTAMP_FILTER_SOME;
-		break;
-	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
-	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
-		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE;
-		is_l2 = true;
-		is_l4 = true;
-		config.rx_filter = HWTSTAMP_FILTER_SOME;
-		break;
-	case HWTSTAMP_FILTER_PTP_V2_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_SYNC:
-	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_EVENT_V2;
-		config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
-		is_l2 = true;
-		is_l4 = true;
-		break;
-	default:
-		return -ERANGE;
-	}
-
-	if (hw->mac.type == e1000_82575) {
-		if (tsync_rx_ctl | tsync_tx_ctl)
-			return -EINVAL;
-		return 0;
-	}
-
-	/*
-	 * Per-packet timestamping only works if all packets are
-	 * timestamped, so enable timestamping in all packets as
-	 * long as one rx filter was configured.
-	 */
-	if ((hw->mac.type >= e1000_82580) && tsync_rx_ctl) {
-		tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED;
-		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL;
-	}
-
-	/* enable/disable TX */
-	regval = rd32(E1000_TSYNCTXCTL);
-	regval &= ~E1000_TSYNCTXCTL_ENABLED;
-	regval |= tsync_tx_ctl;
-	wr32(E1000_TSYNCTXCTL, regval);
-
-	/* enable/disable RX */
-	regval = rd32(E1000_TSYNCRXCTL);
-	regval &= ~(E1000_TSYNCRXCTL_ENABLED | E1000_TSYNCRXCTL_TYPE_MASK);
-	regval |= tsync_rx_ctl;
-	wr32(E1000_TSYNCRXCTL, regval);
-
-	/* define which PTP packets are time stamped */
-	wr32(E1000_TSYNCRXCFG, tsync_rx_cfg);
-
-	/* define ethertype filter for timestamped packets */
-	if (is_l2)
-		wr32(E1000_ETQF(3),
-		                (E1000_ETQF_FILTER_ENABLE | /* enable filter */
-		                 E1000_ETQF_1588 | /* enable timestamping */
-		                 ETH_P_1588));     /* 1588 eth protocol type */
-	else
-		wr32(E1000_ETQF(3), 0);
-
-#define PTP_PORT 319
-	/* L4 Queue Filter[3]: filter by destination port and protocol */
-	if (is_l4) {
-		u32 ftqf = (IPPROTO_UDP /* UDP */
-			| E1000_FTQF_VF_BP /* VF not compared */
-			| E1000_FTQF_1588_TIME_STAMP /* Enable Timestamping */
-			| E1000_FTQF_MASK); /* mask all inputs */
-		ftqf &= ~E1000_FTQF_MASK_PROTO_BP; /* enable protocol check */
-
-		wr32(E1000_IMIR(3), htons(PTP_PORT));
-		wr32(E1000_IMIREXT(3),
-		     (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_BP));
-		if (hw->mac.type == e1000_82576) {
-			/* enable source port check */
-			wr32(E1000_SPQF(3), htons(PTP_PORT));
-			ftqf &= ~E1000_FTQF_MASK_SOURCE_PORT_BP;
-		}
-		wr32(E1000_FTQF(3), ftqf);
-	} else {
-		wr32(E1000_FTQF(3), E1000_FTQF_MASK);
-	}
-	wrfl();
-
-	adapter->hwtstamp_config = config;
-
-	/* clear TX/RX time stamp registers, just to be sure */
-	regval = rd32(E1000_TXSTMPH);
-	regval = rd32(E1000_RXSTMPH);
-
-	return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
-		-EFAULT : 0;
-}
-
-/**
  * igb_ioctl -
  * @netdev:
  * @ifreq:
@@ -6529,8 +6207,10 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	case SIOCGMIIREG:
 	case SIOCSMIIREG:
 		return igb_mii_ioctl(netdev, ifr, cmd);
+#ifdef CONFIG_IGB_PTP
 	case SIOCSHWTSTAMP:
-		return igb_hwtstamp_ioctl(netdev, ifr, cmd);
+		return igb_ptp_hwtstamp_ioctl(netdev, ifr, cmd);
+#endif /* CONFIG_IGB_PTP */
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -6539,28 +6219,20 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
 {
 	struct igb_adapter *adapter = hw->back;
-	u16 cap_offset;
 
-	cap_offset = adapter->pdev->pcie_cap;
-	if (!cap_offset)
+	if (pcie_capability_read_word(adapter->pdev, reg, value))
 		return -E1000_ERR_CONFIG;
 
-	pci_read_config_word(adapter->pdev, cap_offset + reg, value);
-
 	return 0;
 }
 
 s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
 {
 	struct igb_adapter *adapter = hw->back;
-	u16 cap_offset;
 
-	cap_offset = adapter->pdev->pcie_cap;
-	if (!cap_offset)
+	if (pcie_capability_write_word(adapter->pdev, reg, *value))
 		return -E1000_ERR_CONFIG;
 
-	pci_write_config_word(adapter->pdev, cap_offset + reg, *value);
-
 	return 0;
 }
 
@@ -6676,6 +6348,10 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx)
 	default:
 		goto err_inval;
 	}
+
+	/* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
+	adapter->hw.phy.mdix = AUTO_ALL_MODES;
+
 	return 0;
 
 err_inval:
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index c846ea9131a..ee21445157a 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -69,22 +69,22 @@
  *   2^40 * 10^-9 /  60  = 18.3 minutes.
  */
 
-#define IGB_OVERFLOW_PERIOD	(HZ * 60 * 9)
-#define INCPERIOD_82576		(1 << E1000_TIMINCA_16NS_SHIFT)
-#define INCVALUE_82576_MASK	((1 << E1000_TIMINCA_16NS_SHIFT) - 1)
-#define INCVALUE_82576		(16 << IGB_82576_TSYNC_SHIFT)
-#define IGB_NBITS_82580		40
+#define IGB_SYSTIM_OVERFLOW_PERIOD	(HZ * 60 * 9)
+#define INCPERIOD_82576			(1 << E1000_TIMINCA_16NS_SHIFT)
+#define INCVALUE_82576_MASK		((1 << E1000_TIMINCA_16NS_SHIFT) - 1)
+#define INCVALUE_82576			(16 << IGB_82576_TSYNC_SHIFT)
+#define IGB_NBITS_82580			40
 
 /*
  * SYSTIM read access for the 82576
  */
 
-static cycle_t igb_82576_systim_read(const struct cyclecounter *cc)
+static cycle_t igb_ptp_read_82576(const struct cyclecounter *cc)
 {
-	u64 val;
-	u32 lo, hi;
 	struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
 	struct e1000_hw *hw = &igb->hw;
+	u64 val;
+	u32 lo, hi;
 
 	lo = rd32(E1000_SYSTIML);
 	hi = rd32(E1000_SYSTIMH);
@@ -99,12 +99,12 @@ static cycle_t igb_82576_systim_read(const struct cyclecounter *cc)
  * SYSTIM read access for the 82580
  */
 
-static cycle_t igb_82580_systim_read(const struct cyclecounter *cc)
+static cycle_t igb_ptp_read_82580(const struct cyclecounter *cc)
 {
-	u64 val;
-	u32 lo, hi, jk;
 	struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
 	struct e1000_hw *hw = &igb->hw;
+	u64 val;
+	u32 lo, hi, jk;
 
 	/*
 	 * The timestamp latches on lowest register read. For the 82580
@@ -122,16 +122,101 @@ static cycle_t igb_82580_systim_read(const struct cyclecounter *cc)
 }
 
 /*
+ * SYSTIM read access for I210/I211
+ */
+
+static void igb_ptp_read_i210(struct igb_adapter *adapter, struct timespec *ts)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 sec, nsec, jk;
+
+	/*
+	 * The timestamp latches on lowest register read. For I210/I211, the
+	 * lowest register is SYSTIMR. Since we only need to provide nanosecond
+	 * resolution, we can ignore it.
+	 */
+	jk = rd32(E1000_SYSTIMR);
+	nsec = rd32(E1000_SYSTIML);
+	sec = rd32(E1000_SYSTIMH);
+
+	ts->tv_sec = sec;
+	ts->tv_nsec = nsec;
+}
+
+static void igb_ptp_write_i210(struct igb_adapter *adapter,
+			       const struct timespec *ts)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	/*
+	 * Writing the SYSTIMR register is not necessary as it only provides
+	 * sub-nanosecond resolution.
+	 */
+	wr32(E1000_SYSTIML, ts->tv_nsec);
+	wr32(E1000_SYSTIMH, ts->tv_sec);
+}
+
+/**
+ * igb_ptp_systim_to_hwtstamp - convert system time value to hw timestamp
+ * @adapter: board private structure
+ * @hwtstamps: timestamp structure to update
+ * @systim: unsigned 64bit system time value.
+ *
+ * We need to convert the system time value stored in the RX/TXSTMP registers
+ * into a hwtstamp which can be used by the upper level timestamping functions.
+ *
+ * The 'tmreg_lock' spinlock is used to protect the consistency of the
+ * system time value. This is needed because reading the 64 bit time
+ * value involves reading two (or three) 32 bit registers. The first
+ * read latches the value. Ditto for writing.
+ *
+ * In addition, here have extended the system time with an overflow
+ * counter in software.
+ **/
+static void igb_ptp_systim_to_hwtstamp(struct igb_adapter *adapter,
+				       struct skb_shared_hwtstamps *hwtstamps,
+				       u64 systim)
+{
+	unsigned long flags;
+	u64 ns;
+
+	switch (adapter->hw.mac.type) {
+	case e1000_82576:
+	case e1000_82580:
+	case e1000_i350:
+		spin_lock_irqsave(&adapter->tmreg_lock, flags);
+
+		ns = timecounter_cyc2time(&adapter->tc, systim);
+
+		spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
+
+		memset(hwtstamps, 0, sizeof(*hwtstamps));
+		hwtstamps->hwtstamp = ns_to_ktime(ns);
+		break;
+	case e1000_i210:
+	case e1000_i211:
+		memset(hwtstamps, 0, sizeof(*hwtstamps));
+		/* Upper 32 bits contain s, lower 32 bits contain ns. */
+		hwtstamps->hwtstamp = ktime_set(systim >> 32,
+						systim & 0xFFFFFFFF);
+		break;
+	default:
+		break;
+	}
+}
+
+/*
  * PTP clock operations
  */
 
-static int ptp_82576_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+static int igb_ptp_adjfreq_82576(struct ptp_clock_info *ptp, s32 ppb)
 {
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
+	struct e1000_hw *hw = &igb->hw;
+	int neg_adj = 0;
 	u64 rate;
 	u32 incvalue;
-	int neg_adj = 0;
-	struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
-	struct e1000_hw *hw = &igb->hw;
 
 	if (ppb < 0) {
 		neg_adj = 1;
@@ -153,13 +238,14 @@ static int ptp_82576_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
 	return 0;
 }
 
-static int ptp_82580_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+static int igb_ptp_adjfreq_82580(struct ptp_clock_info *ptp, s32 ppb)
 {
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
+	struct e1000_hw *hw = &igb->hw;
+	int neg_adj = 0;
 	u64 rate;
 	u32 inca;
-	int neg_adj = 0;
-	struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
-	struct e1000_hw *hw = &igb->hw;
 
 	if (ppb < 0) {
 		neg_adj = 1;
@@ -178,11 +264,12 @@ static int ptp_82580_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
 	return 0;
 }
 
-static int igb_adjtime(struct ptp_clock_info *ptp, s64 delta)
+static int igb_ptp_adjtime_82576(struct ptp_clock_info *ptp, s64 delta)
 {
-	s64 now;
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
 	unsigned long flags;
-	struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+	s64 now;
 
 	spin_lock_irqsave(&igb->tmreg_lock, flags);
 
@@ -195,12 +282,32 @@ static int igb_adjtime(struct ptp_clock_info *ptp, s64 delta)
 	return 0;
 }
 
-static int igb_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
+static int igb_ptp_adjtime_i210(struct ptp_clock_info *ptp, s64 delta)
 {
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
+	unsigned long flags;
+	struct timespec now, then = ns_to_timespec(delta);
+
+	spin_lock_irqsave(&igb->tmreg_lock, flags);
+
+	igb_ptp_read_i210(igb, &now);
+	now = timespec_add(now, then);
+	igb_ptp_write_i210(igb, (const struct timespec *)&now);
+
+	spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+
+	return 0;
+}
+
+static int igb_ptp_gettime_82576(struct ptp_clock_info *ptp,
+				 struct timespec *ts)
+{
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
+	unsigned long flags;
 	u64 ns;
 	u32 remainder;
-	unsigned long flags;
-	struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
 
 	spin_lock_irqsave(&igb->tmreg_lock, flags);
 
@@ -214,11 +321,29 @@ static int igb_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
 	return 0;
 }
 
-static int igb_settime(struct ptp_clock_info *ptp, const struct timespec *ts)
+static int igb_ptp_gettime_i210(struct ptp_clock_info *ptp,
+				struct timespec *ts)
 {
-	u64 ns;
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
 	unsigned long flags;
-	struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+
+	spin_lock_irqsave(&igb->tmreg_lock, flags);
+
+	igb_ptp_read_i210(igb, ts);
+
+	spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+
+	return 0;
+}
+
+static int igb_ptp_settime_82576(struct ptp_clock_info *ptp,
+				 const struct timespec *ts)
+{
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
+	unsigned long flags;
+	u64 ns;
 
 	ns = ts->tv_sec * 1000000000ULL;
 	ns += ts->tv_nsec;
@@ -232,77 +357,369 @@ static int igb_settime(struct ptp_clock_info *ptp, const struct timespec *ts)
 	return 0;
 }
 
-static int ptp_82576_enable(struct ptp_clock_info *ptp,
-			    struct ptp_clock_request *rq, int on)
+static int igb_ptp_settime_i210(struct ptp_clock_info *ptp,
+				const struct timespec *ts)
 {
-	return -EOPNOTSUPP;
+	struct igb_adapter *igb = container_of(ptp, struct igb_adapter,
+					       ptp_caps);
+	unsigned long flags;
+
+	spin_lock_irqsave(&igb->tmreg_lock, flags);
+
+	igb_ptp_write_i210(igb, ts);
+
+	spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+
+	return 0;
 }
 
-static int ptp_82580_enable(struct ptp_clock_info *ptp,
-			    struct ptp_clock_request *rq, int on)
+static int igb_ptp_enable(struct ptp_clock_info *ptp,
+			  struct ptp_clock_request *rq, int on)
 {
 	return -EOPNOTSUPP;
 }
 
-static void igb_overflow_check(struct work_struct *work)
+/**
+ * igb_ptp_tx_work
+ * @work: pointer to work struct
+ *
+ * This work function polls the TSYNCTXCTL valid bit to determine when a
+ * timestamp has been taken for the current stored skb.
+ */
+void igb_ptp_tx_work(struct work_struct *work)
+{
+	struct igb_adapter *adapter = container_of(work, struct igb_adapter,
+						   ptp_tx_work);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 tsynctxctl;
+
+	if (!adapter->ptp_tx_skb)
+		return;
+
+	tsynctxctl = rd32(E1000_TSYNCTXCTL);
+	if (tsynctxctl & E1000_TSYNCTXCTL_VALID)
+		igb_ptp_tx_hwtstamp(adapter);
+	else
+		/* reschedule to check later */
+		schedule_work(&adapter->ptp_tx_work);
+}
+
+static void igb_ptp_overflow_check(struct work_struct *work)
 {
-	struct timespec ts;
 	struct igb_adapter *igb =
-		container_of(work, struct igb_adapter, overflow_work.work);
+		container_of(work, struct igb_adapter, ptp_overflow_work.work);
+	struct timespec ts;
 
-	igb_gettime(&igb->caps, &ts);
+	igb->ptp_caps.gettime(&igb->ptp_caps, &ts);
 
 	pr_debug("igb overflow check at %ld.%09lu\n", ts.tv_sec, ts.tv_nsec);
 
-	schedule_delayed_work(&igb->overflow_work, IGB_OVERFLOW_PERIOD);
+	schedule_delayed_work(&igb->ptp_overflow_work,
+			      IGB_SYSTIM_OVERFLOW_PERIOD);
+}
+
+/**
+ * igb_ptp_tx_hwtstamp - utility function which checks for TX time stamp
+ * @adapter: Board private structure.
+ *
+ * If we were asked to do hardware stamping and such a time stamp is
+ * available, then it must have been for this skb here because we only
+ * allow only one such packet into the queue.
+ */
+void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct skb_shared_hwtstamps shhwtstamps;
+	u64 regval;
+
+	regval = rd32(E1000_TXSTMPL);
+	regval |= (u64)rd32(E1000_TXSTMPH) << 32;
+
+	igb_ptp_systim_to_hwtstamp(adapter, &shhwtstamps, regval);
+	skb_tstamp_tx(adapter->ptp_tx_skb, &shhwtstamps);
+	dev_kfree_skb_any(adapter->ptp_tx_skb);
+	adapter->ptp_tx_skb = NULL;
+}
+
+void igb_ptp_rx_hwtstamp(struct igb_q_vector *q_vector,
+			 union e1000_adv_rx_desc *rx_desc,
+			 struct sk_buff *skb)
+{
+	struct igb_adapter *adapter = q_vector->adapter;
+	struct e1000_hw *hw = &adapter->hw;
+	u64 regval;
+
+	if (!igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP |
+				       E1000_RXDADV_STAT_TS))
+		return;
+
+	/*
+	 * If this bit is set, then the RX registers contain the time stamp. No
+	 * other packet will be time stamped until we read these registers, so
+	 * read the registers to make them available again. Because only one
+	 * packet can be time stamped at a time, we know that the register
+	 * values must belong to this one here and therefore we don't need to
+	 * compare any of the additional attributes stored for it.
+	 *
+	 * If nothing went wrong, then it should have a shared tx_flags that we
+	 * can turn into a skb_shared_hwtstamps.
+	 */
+	if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
+		u32 *stamp = (u32 *)skb->data;
+		regval = le32_to_cpu(*(stamp + 2));
+		regval |= (u64)le32_to_cpu(*(stamp + 3)) << 32;
+		skb_pull(skb, IGB_TS_HDR_LEN);
+	} else {
+		if (!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID))
+			return;
+
+		regval = rd32(E1000_RXSTMPL);
+		regval |= (u64)rd32(E1000_RXSTMPH) << 32;
+	}
+
+	igb_ptp_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval);
+}
+
+/**
+ * igb_ptp_hwtstamp_ioctl - control hardware time stamping
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ *
+ * Outgoing time stamping can be enabled and disabled. Play nice and
+ * disable it when requested, although it shouldn't case any overhead
+ * when no packet needs it. At most one packet in the queue may be
+ * marked for time stamping, otherwise it would be impossible to tell
+ * for sure to which packet the hardware time stamp belongs.
+ *
+ * Incoming time stamping has to be configured via the hardware
+ * filters. Not all combinations are supported, in particular event
+ * type has to be specified. Matching the kind of event packet is
+ * not supported, with the exception of "all V2 events regardless of
+ * level 2 or 4".
+ *
+ **/
+int igb_ptp_hwtstamp_ioctl(struct net_device *netdev,
+			   struct ifreq *ifr, int cmd)
+{
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	struct hwtstamp_config config;
+	u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED;
+	u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED;
+	u32 tsync_rx_cfg = 0;
+	bool is_l4 = false;
+	bool is_l2 = false;
+	u32 regval;
+
+	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
+		return -EFAULT;
+
+	/* reserved for future extensions */
+	if (config.flags)
+		return -EINVAL;
+
+	switch (config.tx_type) {
+	case HWTSTAMP_TX_OFF:
+		tsync_tx_ctl = 0;
+	case HWTSTAMP_TX_ON:
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config.rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		tsync_rx_ctl = 0;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_ALL:
+		/*
+		 * register TSYNCRXCFG must be set, therefore it is not
+		 * possible to time stamp both Sync and Delay_Req messages
+		 * => fall back to time stamping all packets
+		 */
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL;
+		config.rx_filter = HWTSTAMP_FILTER_ALL;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE;
+		is_l4 = true;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE;
+		is_l4 = true;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE;
+		is_l2 = true;
+		is_l4 = true;
+		config.rx_filter = HWTSTAMP_FILTER_SOME;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE;
+		is_l2 = true;
+		is_l4 = true;
+		config.rx_filter = HWTSTAMP_FILTER_SOME;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_EVENT_V2;
+		config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+		is_l2 = true;
+		is_l4 = true;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	if (hw->mac.type == e1000_82575) {
+		if (tsync_rx_ctl | tsync_tx_ctl)
+			return -EINVAL;
+		return 0;
+	}
+
+	/*
+	 * Per-packet timestamping only works if all packets are
+	 * timestamped, so enable timestamping in all packets as
+	 * long as one rx filter was configured.
+	 */
+	if ((hw->mac.type >= e1000_82580) && tsync_rx_ctl) {
+		tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED;
+		tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL;
+
+		if ((hw->mac.type == e1000_i210) ||
+		    (hw->mac.type == e1000_i211)) {
+			regval = rd32(E1000_RXPBS);
+			regval |= E1000_RXPBS_CFG_TS_EN;
+			wr32(E1000_RXPBS, regval);
+		}
+	}
+
+	/* enable/disable TX */
+	regval = rd32(E1000_TSYNCTXCTL);
+	regval &= ~E1000_TSYNCTXCTL_ENABLED;
+	regval |= tsync_tx_ctl;
+	wr32(E1000_TSYNCTXCTL, regval);
+
+	/* enable/disable RX */
+	regval = rd32(E1000_TSYNCRXCTL);
+	regval &= ~(E1000_TSYNCRXCTL_ENABLED | E1000_TSYNCRXCTL_TYPE_MASK);
+	regval |= tsync_rx_ctl;
+	wr32(E1000_TSYNCRXCTL, regval);
+
+	/* define which PTP packets are time stamped */
+	wr32(E1000_TSYNCRXCFG, tsync_rx_cfg);
+
+	/* define ethertype filter for timestamped packets */
+	if (is_l2)
+		wr32(E1000_ETQF(3),
+		     (E1000_ETQF_FILTER_ENABLE | /* enable filter */
+		      E1000_ETQF_1588 | /* enable timestamping */
+		      ETH_P_1588));     /* 1588 eth protocol type */
+	else
+		wr32(E1000_ETQF(3), 0);
+
+#define PTP_PORT 319
+	/* L4 Queue Filter[3]: filter by destination port and protocol */
+	if (is_l4) {
+		u32 ftqf = (IPPROTO_UDP /* UDP */
+			| E1000_FTQF_VF_BP /* VF not compared */
+			| E1000_FTQF_1588_TIME_STAMP /* Enable Timestamping */
+			| E1000_FTQF_MASK); /* mask all inputs */
+		ftqf &= ~E1000_FTQF_MASK_PROTO_BP; /* enable protocol check */
+
+		wr32(E1000_IMIR(3), htons(PTP_PORT));
+		wr32(E1000_IMIREXT(3),
+		     (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_BP));
+		if (hw->mac.type == e1000_82576) {
+			/* enable source port check */
+			wr32(E1000_SPQF(3), htons(PTP_PORT));
+			ftqf &= ~E1000_FTQF_MASK_SOURCE_PORT_BP;
+		}
+		wr32(E1000_FTQF(3), ftqf);
+	} else {
+		wr32(E1000_FTQF(3), E1000_FTQF_MASK);
+	}
+	wrfl();
+
+	/* clear TX/RX time stamp registers, just to be sure */
+	regval = rd32(E1000_TXSTMPL);
+	regval = rd32(E1000_TXSTMPH);
+	regval = rd32(E1000_RXSTMPL);
+	regval = rd32(E1000_RXSTMPH);
+
+	return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
+		-EFAULT : 0;
 }
 
 void igb_ptp_init(struct igb_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
 
 	switch (hw->mac.type) {
-	case e1000_i210:
-	case e1000_i211:
-	case e1000_i350:
+	case e1000_82576:
+		snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
+		adapter->ptp_caps.owner = THIS_MODULE;
+		adapter->ptp_caps.max_adj = 1000000000;
+		adapter->ptp_caps.n_ext_ts = 0;
+		adapter->ptp_caps.pps = 0;
+		adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82576;
+		adapter->ptp_caps.adjtime = igb_ptp_adjtime_82576;
+		adapter->ptp_caps.gettime = igb_ptp_gettime_82576;
+		adapter->ptp_caps.settime = igb_ptp_settime_82576;
+		adapter->ptp_caps.enable = igb_ptp_enable;
+		adapter->cc.read = igb_ptp_read_82576;
+		adapter->cc.mask = CLOCKSOURCE_MASK(64);
+		adapter->cc.mult = 1;
+		adapter->cc.shift = IGB_82576_TSYNC_SHIFT;
+		/* Dial the nominal frequency. */
+		wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576);
+		break;
 	case e1000_82580:
-		adapter->caps.owner	= THIS_MODULE;
-		strcpy(adapter->caps.name, "igb-82580");
-		adapter->caps.max_adj	= 62499999;
-		adapter->caps.n_ext_ts	= 0;
-		adapter->caps.pps	= 0;
-		adapter->caps.adjfreq	= ptp_82580_adjfreq;
-		adapter->caps.adjtime	= igb_adjtime;
-		adapter->caps.gettime	= igb_gettime;
-		adapter->caps.settime	= igb_settime;
-		adapter->caps.enable	= ptp_82580_enable;
-		adapter->cc.read	= igb_82580_systim_read;
-		adapter->cc.mask	= CLOCKSOURCE_MASK(IGB_NBITS_82580);
-		adapter->cc.mult	= 1;
-		adapter->cc.shift	= 0;
+	case e1000_i350:
+		snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
+		adapter->ptp_caps.owner = THIS_MODULE;
+		adapter->ptp_caps.max_adj = 62499999;
+		adapter->ptp_caps.n_ext_ts = 0;
+		adapter->ptp_caps.pps = 0;
+		adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82580;
+		adapter->ptp_caps.adjtime = igb_ptp_adjtime_82576;
+		adapter->ptp_caps.gettime = igb_ptp_gettime_82576;
+		adapter->ptp_caps.settime = igb_ptp_settime_82576;
+		adapter->ptp_caps.enable = igb_ptp_enable;
+		adapter->cc.read = igb_ptp_read_82580;
+		adapter->cc.mask = CLOCKSOURCE_MASK(IGB_NBITS_82580);
+		adapter->cc.mult = 1;
+		adapter->cc.shift = 0;
 		/* Enable the timer functions by clearing bit 31. */
 		wr32(E1000_TSAUXC, 0x0);
 		break;
-
-	case e1000_82576:
-		adapter->caps.owner	= THIS_MODULE;
-		strcpy(adapter->caps.name, "igb-82576");
-		adapter->caps.max_adj	= 1000000000;
-		adapter->caps.n_ext_ts	= 0;
-		adapter->caps.pps	= 0;
-		adapter->caps.adjfreq	= ptp_82576_adjfreq;
-		adapter->caps.adjtime	= igb_adjtime;
-		adapter->caps.gettime	= igb_gettime;
-		adapter->caps.settime	= igb_settime;
-		adapter->caps.enable	= ptp_82576_enable;
-		adapter->cc.read	= igb_82576_systim_read;
-		adapter->cc.mask	= CLOCKSOURCE_MASK(64);
-		adapter->cc.mult	= 1;
-		adapter->cc.shift	= IGB_82576_TSYNC_SHIFT;
-		/* Dial the nominal frequency. */
-		wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576);
+	case e1000_i210:
+	case e1000_i211:
+		snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
+		adapter->ptp_caps.owner = THIS_MODULE;
+		adapter->ptp_caps.max_adj = 62499999;
+		adapter->ptp_caps.n_ext_ts = 0;
+		adapter->ptp_caps.pps = 0;
+		adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82580;
+		adapter->ptp_caps.adjtime = igb_ptp_adjtime_i210;
+		adapter->ptp_caps.gettime = igb_ptp_gettime_i210;
+		adapter->ptp_caps.settime = igb_ptp_settime_i210;
+		adapter->ptp_caps.enable = igb_ptp_enable;
+		/* Enable the timer functions by clearing bit 31. */
+		wr32(E1000_TSAUXC, 0x0);
 		break;
-
 	default:
 		adapter->ptp_clock = NULL;
 		return;
@@ -310,86 +727,114 @@ void igb_ptp_init(struct igb_adapter *adapter)
 
 	wrfl();
 
-	timecounter_init(&adapter->tc, &adapter->cc,
-			 ktime_to_ns(ktime_get_real()));
+	spin_lock_init(&adapter->tmreg_lock);
+	INIT_WORK(&adapter->ptp_tx_work, igb_ptp_tx_work);
+
+	/* Initialize the clock and overflow work for devices that need it. */
+	if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) {
+		struct timespec ts = ktime_to_timespec(ktime_get_real());
 
-	INIT_DELAYED_WORK(&adapter->overflow_work, igb_overflow_check);
+		igb_ptp_settime_i210(&adapter->ptp_caps, &ts);
+	} else {
+		timecounter_init(&adapter->tc, &adapter->cc,
+				 ktime_to_ns(ktime_get_real()));
 
-	spin_lock_init(&adapter->tmreg_lock);
+		INIT_DELAYED_WORK(&adapter->ptp_overflow_work,
+				  igb_ptp_overflow_check);
 
-	schedule_delayed_work(&adapter->overflow_work, IGB_OVERFLOW_PERIOD);
+		schedule_delayed_work(&adapter->ptp_overflow_work,
+				      IGB_SYSTIM_OVERFLOW_PERIOD);
+	}
+
+	/* Initialize the time sync interrupts for devices that support it. */
+	if (hw->mac.type >= e1000_82580) {
+		wr32(E1000_TSIM, E1000_TSIM_TXTS);
+		wr32(E1000_IMS, E1000_IMS_TS);
+	}
 
-	adapter->ptp_clock = ptp_clock_register(&adapter->caps);
+	adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps,
+						&adapter->pdev->dev);
 	if (IS_ERR(adapter->ptp_clock)) {
 		adapter->ptp_clock = NULL;
 		dev_err(&adapter->pdev->dev, "ptp_clock_register failed\n");
-	} else
+	} else {
 		dev_info(&adapter->pdev->dev, "added PHC on %s\n",
 			 adapter->netdev->name);
+		adapter->flags |= IGB_FLAG_PTP;
+	}
 }
 
-void igb_ptp_remove(struct igb_adapter *adapter)
+/**
+ * igb_ptp_stop - Disable PTP device and stop the overflow check.
+ * @adapter: Board private structure.
+ *
+ * This function stops the PTP support and cancels the delayed work.
+ **/
+void igb_ptp_stop(struct igb_adapter *adapter)
 {
 	switch (adapter->hw.mac.type) {
-	case e1000_i211:
-	case e1000_i210:
-	case e1000_i350:
-	case e1000_82580:
 	case e1000_82576:
-		cancel_delayed_work_sync(&adapter->overflow_work);
+	case e1000_82580:
+	case e1000_i350:
+		cancel_delayed_work_sync(&adapter->ptp_overflow_work);
+		break;
+	case e1000_i210:
+	case e1000_i211:
+		/* No delayed work to cancel. */
 		break;
 	default:
 		return;
 	}
 
+	cancel_work_sync(&adapter->ptp_tx_work);
+
 	if (adapter->ptp_clock) {
 		ptp_clock_unregister(adapter->ptp_clock);
 		dev_info(&adapter->pdev->dev, "removed PHC on %s\n",
 			 adapter->netdev->name);
+		adapter->flags &= ~IGB_FLAG_PTP;
 	}
 }
 
 /**
- * igb_systim_to_hwtstamp - convert system time value to hw timestamp
- * @adapter: board private structure
- * @hwtstamps: timestamp structure to update
- * @systim: unsigned 64bit system time value.
- *
- * We need to convert the system time value stored in the RX/TXSTMP registers
- * into a hwtstamp which can be used by the upper level timestamping functions.
+ * igb_ptp_reset - Re-enable the adapter for PTP following a reset.
+ * @adapter: Board private structure.
  *
- * The 'tmreg_lock' spinlock is used to protect the consistency of the
- * system time value. This is needed because reading the 64 bit time
- * value involves reading two (or three) 32 bit registers. The first
- * read latches the value. Ditto for writing.
- *
- * In addition, here have extended the system time with an overflow
- * counter in software.
+ * This function handles the reset work required to re-enable the PTP device.
  **/
-void igb_systim_to_hwtstamp(struct igb_adapter *adapter,
-			    struct skb_shared_hwtstamps *hwtstamps,
-			    u64 systim)
+void igb_ptp_reset(struct igb_adapter *adapter)
 {
-	u64 ns;
-	unsigned long flags;
+	struct e1000_hw *hw = &adapter->hw;
+
+	if (!(adapter->flags & IGB_FLAG_PTP))
+		return;
 
 	switch (adapter->hw.mac.type) {
+	case e1000_82576:
+		/* Dial the nominal frequency. */
+		wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576);
+		break;
+	case e1000_82580:
+	case e1000_i350:
 	case e1000_i210:
 	case e1000_i211:
-	case e1000_i350:
-	case e1000_82580:
-	case e1000_82576:
+		/* Enable the timer functions and interrupts. */
+		wr32(E1000_TSAUXC, 0x0);
+		wr32(E1000_TSIM, E1000_TSIM_TXTS);
+		wr32(E1000_IMS, E1000_IMS_TS);
 		break;
 	default:
+		/* No work to do. */
 		return;
 	}
 
-	spin_lock_irqsave(&adapter->tmreg_lock, flags);
+	/* Re-initialize the timer. */
+	if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) {
+		struct timespec ts = ktime_to_timespec(ktime_get_real());
 
-	ns = timecounter_cyc2time(&adapter->tc, systim);
-
-	spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
-
-	memset(hwtstamps, 0, sizeof(*hwtstamps));
-	hwtstamps->hwtstamp = ns_to_ktime(ns);
+		igb_ptp_settime_i210(&adapter->ptp_caps, &ts);
+	} else {
+		timecounter_init(&adapter->tc, &adapter->cc,
+				 ktime_to_ns(ktime_get_real()));
+	}
 }
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 0696abfe994..0ac11f527a8 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2833,7 +2833,7 @@ static void __devexit igbvf_remove(struct pci_dev *pdev)
 }
 
 /* PCI Error Recovery (ERS) */
-static struct pci_error_handlers igbvf_err_handler = {
+static const struct pci_error_handlers igbvf_err_handler = {
 	.error_detected = igbvf_io_error_detected,
 	.slot_reset = igbvf_io_slot_reset,
 	.resume = igbvf_io_resume,
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index d05fc95befc..d99a2d51b94 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -115,7 +115,7 @@ static pci_ers_result_t ixgb_io_error_detected (struct pci_dev *pdev,
 static pci_ers_result_t ixgb_io_slot_reset (struct pci_dev *pdev);
 static void ixgb_io_resume (struct pci_dev *pdev);
 
-static struct pci_error_handlers ixgb_err_handler = {
+static const struct pci_error_handlers ixgb_err_handler = {
 	.error_detected = ixgb_io_error_detected,
 	.slot_reset = ixgb_io_slot_reset,
 	.resume = ixgb_io_resume,
diff --git a/drivers/net/ethernet/intel/ixgbe/Makefile b/drivers/net/ethernet/intel/ixgbe/Makefile
index 5fd5d04c26c..89f40e51fc1 100644
--- a/drivers/net/ethernet/intel/ixgbe/Makefile
+++ b/drivers/net/ethernet/intel/ixgbe/Makefile
@@ -32,7 +32,7 @@
 
 obj-$(CONFIG_IXGBE) += ixgbe.o
 
-ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o \
+ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o ixgbe_debugfs.o\
               ixgbe_82599.o ixgbe_82598.o ixgbe_phy.o ixgbe_sriov.o \
               ixgbe_mbx.o ixgbe_x540.o ixgbe_lib.o
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index b9623e9ea89..5bd26763554 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -78,6 +78,9 @@
 
 /* Supported Rx Buffer Sizes */
 #define IXGBE_RXBUFFER_256    256  /* Used for skb receive header */
+#define IXGBE_RXBUFFER_2K    2048
+#define IXGBE_RXBUFFER_3K    3072
+#define IXGBE_RXBUFFER_4K    4096
 #define IXGBE_MAX_RXBUFFER  16384  /* largest size for a single descriptor */
 
 /*
@@ -104,6 +107,7 @@
 #define IXGBE_TX_FLAGS_FSO		(u32)(1 << 6)
 #define IXGBE_TX_FLAGS_TXSW		(u32)(1 << 7)
 #define IXGBE_TX_FLAGS_TSTAMP		(u32)(1 << 8)
+#define IXGBE_TX_FLAGS_NO_IFCS		(u32)(1 << 9)
 #define IXGBE_TX_FLAGS_VLAN_MASK	0xffff0000
 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK	0xe0000000
 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT  29
@@ -293,16 +297,25 @@ struct ixgbe_ring_feature {
  * this is twice the size of a half page we need to double the page order
  * for FCoE enabled Rx queues.
  */
-#if defined(IXGBE_FCOE) && (PAGE_SIZE < 8192)
-static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
+static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
 {
-	return test_bit(__IXGBE_RX_FCOE, &ring->state) ? 1 : 0;
+#ifdef IXGBE_FCOE
+	if (test_bit(__IXGBE_RX_FCOE, &ring->state))
+		return (PAGE_SIZE < 8192) ? IXGBE_RXBUFFER_4K :
+					    IXGBE_RXBUFFER_3K;
+#endif
+	return IXGBE_RXBUFFER_2K;
 }
-#else
-#define ixgbe_rx_pg_order(_ring) 0
+
+static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
+{
+#ifdef IXGBE_FCOE
+	if (test_bit(__IXGBE_RX_FCOE, &ring->state))
+		return (PAGE_SIZE < 8192) ? 1 : 0;
 #endif
+	return 0;
+}
 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
-#define ixgbe_rx_bufsz(_ring) ((PAGE_SIZE / 2) << ixgbe_rx_pg_order(_ring))
 
 struct ixgbe_ring_container {
 	struct ixgbe_ring *ring;	/* pointer to linked list of rings */
@@ -584,6 +597,9 @@ struct ixgbe_adapter {
 #ifdef CONFIG_IXGBE_HWMON
 	struct hwmon_buff ixgbe_hwmon_buff;
 #endif /* CONFIG_IXGBE_HWMON */
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *ixgbe_dbg_adapter;
+#endif /*CONFIG_DEBUG_FS*/
 };
 
 struct ixgbe_fdir_filter {
@@ -712,7 +728,12 @@ extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
 				  struct netdev_fcoe_hbainfo *info);
 extern u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
 #endif /* IXGBE_FCOE */
-
+#ifdef CONFIG_DEBUG_FS
+extern void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
+extern void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
+extern void ixgbe_dbg_init(void);
+extern void ixgbe_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
 {
 	return netdev_get_tx_queue(ring->netdev, ring->queue_index);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
index 50fc137501d..18bf08c9d7a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -804,12 +804,13 @@ static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
 	    link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
 		/* Set KX4/KX/KR support according to speed requested */
 		autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
-		if (speed & IXGBE_LINK_SPEED_10GB_FULL)
+		if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
 			if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
 				autoc |= IXGBE_AUTOC_KX4_SUPP;
 			if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
 			    (hw->phy.smart_speed_active == false))
 				autoc |= IXGBE_AUTOC_KR_SUPP;
+		}
 		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
 			autoc |= IXGBE_AUTOC_KX_SUPP;
 	} else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
new file mode 100644
index 00000000000..8d3a2188909
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
@@ -0,0 +1,300 @@
+/*******************************************************************************
+
+  Intel 10 Gigabit PCI Express Linux driver
+  Copyright(c) 1999 - 2012 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+#include "ixgbe.h"
+
+static struct dentry *ixgbe_dbg_root;
+
+static char ixgbe_dbg_reg_ops_buf[256] = "";
+
+/**
+ * ixgbe_dbg_reg_ops_open - prep the debugfs pokee data item when opened
+ * @inode: inode that was opened
+ * @filp:  file info
+ *
+ * Stash the adapter pointer hiding in the inode into the file pointer where
+ * we can find it later in the read and write calls
+ **/
+static int ixgbe_dbg_reg_ops_open(struct inode *inode, struct file *filp)
+{
+	filp->private_data = inode->i_private;
+	return 0;
+}
+
+/**
+ * ixgbe_dbg_reg_ops_read - read for reg_ops datum
+ * @filp: the opened file
+ * @buffer: where to write the data for the user to read
+ * @count: the size of the user's buffer
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_reg_ops_read(struct file *filp, char __user *buffer,
+				    size_t count, loff_t *ppos)
+{
+	struct ixgbe_adapter *adapter = filp->private_data;
+	char buf[256];
+	int bytes_not_copied;
+	int len;
+
+	/* don't allow partial reads */
+	if (*ppos != 0)
+		return 0;
+
+	len = snprintf(buf, sizeof(buf), "%s: %s\n",
+		       adapter->netdev->name, ixgbe_dbg_reg_ops_buf);
+	if (count < len)
+		return -ENOSPC;
+	bytes_not_copied = copy_to_user(buffer, buf, len);
+	if (bytes_not_copied < 0)
+		return bytes_not_copied;
+
+	*ppos = len;
+	return len;
+}
+
+/**
+ * ixgbe_dbg_reg_ops_write - write into reg_ops datum
+ * @filp: the opened file
+ * @buffer: where to find the user's data
+ * @count: the length of the user's data
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_reg_ops_write(struct file *filp,
+				     const char __user *buffer,
+				     size_t count, loff_t *ppos)
+{
+	struct ixgbe_adapter *adapter = filp->private_data;
+	int bytes_not_copied;
+
+	/* don't allow partial writes */
+	if (*ppos != 0)
+		return 0;
+	if (count >= sizeof(ixgbe_dbg_reg_ops_buf))
+		return -ENOSPC;
+
+	bytes_not_copied = copy_from_user(ixgbe_dbg_reg_ops_buf, buffer, count);
+	if (bytes_not_copied < 0)
+		return bytes_not_copied;
+	else if (bytes_not_copied < count)
+		count -= bytes_not_copied;
+	else
+		return -ENOSPC;
+	ixgbe_dbg_reg_ops_buf[count] = '\0';
+
+	if (strncmp(ixgbe_dbg_reg_ops_buf, "write", 5) == 0) {
+		u32 reg, value;
+		int cnt;
+		cnt = sscanf(&ixgbe_dbg_reg_ops_buf[5], "%x %x", &reg, &value);
+		if (cnt == 2) {
+			IXGBE_WRITE_REG(&adapter->hw, reg, value);
+			value = IXGBE_READ_REG(&adapter->hw, reg);
+			e_dev_info("write: 0x%08x = 0x%08x\n", reg, value);
+		} else {
+			e_dev_info("write <reg> <value>\n");
+		}
+	} else if (strncmp(ixgbe_dbg_reg_ops_buf, "read", 4) == 0) {
+		u32 reg, value;
+		int cnt;
+		cnt = sscanf(&ixgbe_dbg_reg_ops_buf[4], "%x", &reg);
+		if (cnt == 1) {
+			value = IXGBE_READ_REG(&adapter->hw, reg);
+			e_dev_info("read 0x%08x = 0x%08x\n", reg, value);
+		} else {
+			e_dev_info("read <reg>\n");
+		}
+	} else {
+		e_dev_info("Unknown command %s\n", ixgbe_dbg_reg_ops_buf);
+		e_dev_info("Available commands:\n");
+		e_dev_info("   read <reg>\n");
+		e_dev_info("   write <reg> <value>\n");
+	}
+	return count;
+}
+
+static const struct file_operations ixgbe_dbg_reg_ops_fops = {
+	.owner = THIS_MODULE,
+	.open =  ixgbe_dbg_reg_ops_open,
+	.read =  ixgbe_dbg_reg_ops_read,
+	.write = ixgbe_dbg_reg_ops_write,
+};
+
+static char ixgbe_dbg_netdev_ops_buf[256] = "";
+
+/**
+ * ixgbe_dbg_netdev_ops_open - prep the debugfs netdev_ops data item
+ * @inode: inode that was opened
+ * @filp: file info
+ *
+ * Stash the adapter pointer hiding in the inode into the file pointer
+ * where we can find it later in the read and write calls
+ **/
+static int ixgbe_dbg_netdev_ops_open(struct inode *inode, struct file *filp)
+{
+	filp->private_data = inode->i_private;
+	return 0;
+}
+
+/**
+ * ixgbe_dbg_netdev_ops_read - read for netdev_ops datum
+ * @filp: the opened file
+ * @buffer: where to write the data for the user to read
+ * @count: the size of the user's buffer
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_netdev_ops_read(struct file *filp,
+					 char __user *buffer,
+					 size_t count, loff_t *ppos)
+{
+	struct ixgbe_adapter *adapter = filp->private_data;
+	char buf[256];
+	int bytes_not_copied;
+	int len;
+
+	/* don't allow partial reads */
+	if (*ppos != 0)
+		return 0;
+
+	len = snprintf(buf, sizeof(buf), "%s: %s\n",
+		       adapter->netdev->name, ixgbe_dbg_netdev_ops_buf);
+	if (count < len)
+		return -ENOSPC;
+	bytes_not_copied = copy_to_user(buffer, buf, len);
+	if (bytes_not_copied < 0)
+		return bytes_not_copied;
+
+	*ppos = len;
+	return len;
+}
+
+/**
+ * ixgbe_dbg_netdev_ops_write - write into netdev_ops datum
+ * @filp: the opened file
+ * @buffer: where to find the user's data
+ * @count: the length of the user's data
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_netdev_ops_write(struct file *filp,
+					  const char __user *buffer,
+					  size_t count, loff_t *ppos)
+{
+	struct ixgbe_adapter *adapter = filp->private_data;
+	int bytes_not_copied;
+
+	/* don't allow partial writes */
+	if (*ppos != 0)
+		return 0;
+	if (count >= sizeof(ixgbe_dbg_netdev_ops_buf))
+		return -ENOSPC;
+
+	bytes_not_copied = copy_from_user(ixgbe_dbg_netdev_ops_buf,
+					  buffer, count);
+	if (bytes_not_copied < 0)
+		return bytes_not_copied;
+	else if (bytes_not_copied < count)
+		count -= bytes_not_copied;
+	else
+		return -ENOSPC;
+	ixgbe_dbg_netdev_ops_buf[count] = '\0';
+
+	if (strncmp(ixgbe_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
+		adapter->netdev->netdev_ops->ndo_tx_timeout(adapter->netdev);
+		e_dev_info("tx_timeout called\n");
+	} else {
+		e_dev_info("Unknown command: %s\n", ixgbe_dbg_netdev_ops_buf);
+		e_dev_info("Available commands:\n");
+		e_dev_info("    tx_timeout\n");
+	}
+	return count;
+}
+
+static const struct file_operations ixgbe_dbg_netdev_ops_fops = {
+	.owner = THIS_MODULE,
+	.open = ixgbe_dbg_netdev_ops_open,
+	.read = ixgbe_dbg_netdev_ops_read,
+	.write = ixgbe_dbg_netdev_ops_write,
+};
+
+/**
+ * ixgbe_dbg_adapter_init - setup the debugfs directory for the adapter
+ * @adapter: the adapter that is starting up
+ **/
+void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter)
+{
+	const char *name = pci_name(adapter->pdev);
+	struct dentry *pfile;
+	adapter->ixgbe_dbg_adapter = debugfs_create_dir(name, ixgbe_dbg_root);
+	if (adapter->ixgbe_dbg_adapter) {
+		pfile = debugfs_create_file("reg_ops", 0600,
+					    adapter->ixgbe_dbg_adapter, adapter,
+					    &ixgbe_dbg_reg_ops_fops);
+		if (!pfile)
+			e_dev_err("debugfs reg_ops for %s failed\n", name);
+		pfile = debugfs_create_file("netdev_ops", 0600,
+					    adapter->ixgbe_dbg_adapter, adapter,
+					    &ixgbe_dbg_netdev_ops_fops);
+		if (!pfile)
+			e_dev_err("debugfs netdev_ops for %s failed\n", name);
+	} else {
+		e_dev_err("debugfs entry for %s failed\n", name);
+	}
+}
+
+/**
+ * ixgbe_dbg_adapter_exit - clear out the adapter's debugfs entries
+ * @pf: the pf that is stopping
+ **/
+void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter)
+{
+	if (adapter->ixgbe_dbg_adapter)
+		debugfs_remove_recursive(adapter->ixgbe_dbg_adapter);
+	adapter->ixgbe_dbg_adapter = NULL;
+}
+
+/**
+ * ixgbe_dbg_init - start up debugfs for the driver
+ **/
+void ixgbe_dbg_init(void)
+{
+	ixgbe_dbg_root = debugfs_create_dir(ixgbe_driver_name, NULL);
+	if (ixgbe_dbg_root == NULL)
+		pr_err("init of debugfs failed\n");
+}
+
+/**
+ * ixgbe_dbg_exit - clean out the driver's debugfs entries
+ **/
+void ixgbe_dbg_exit(void)
+{
+	debugfs_remove_recursive(ixgbe_dbg_root);
+}
+
+#endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 4326f74f713..868af693821 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1167,7 +1167,7 @@ static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring,
 	}
 
 	bi->dma = dma;
-	bi->page_offset ^= ixgbe_rx_bufsz(rx_ring);
+	bi->page_offset = 0;
 
 	return true;
 }
@@ -1320,29 +1320,6 @@ static unsigned int ixgbe_get_headlen(unsigned char *data,
 		return max_len;
 }
 
-static void ixgbe_get_rsc_cnt(struct ixgbe_ring *rx_ring,
-			      union ixgbe_adv_rx_desc *rx_desc,
-			      struct sk_buff *skb)
-{
-	__le32 rsc_enabled;
-	u32 rsc_cnt;
-
-	if (!ring_is_rsc_enabled(rx_ring))
-		return;
-
-	rsc_enabled = rx_desc->wb.lower.lo_dword.data &
-		      cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK);
-
-	/* If this is an RSC frame rsc_cnt should be non-zero */
-	if (!rsc_enabled)
-		return;
-
-	rsc_cnt = le32_to_cpu(rsc_enabled);
-	rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT;
-
-	IXGBE_CB(skb)->append_cnt += rsc_cnt - 1;
-}
-
 static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring,
 				   struct sk_buff *skb)
 {
@@ -1440,16 +1417,28 @@ static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring,
 
 	prefetch(IXGBE_RX_DESC(rx_ring, ntc));
 
-	if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)))
-		return false;
+	/* update RSC append count if present */
+	if (ring_is_rsc_enabled(rx_ring)) {
+		__le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data &
+				     cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK);
+
+		if (unlikely(rsc_enabled)) {
+			u32 rsc_cnt = le32_to_cpu(rsc_enabled);
+
+			rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT;
+			IXGBE_CB(skb)->append_cnt += rsc_cnt - 1;
 
-	/* append_cnt indicates packet is RSC, if so fetch nextp */
-	if (IXGBE_CB(skb)->append_cnt) {
-		ntc = le32_to_cpu(rx_desc->wb.upper.status_error);
-		ntc &= IXGBE_RXDADV_NEXTP_MASK;
-		ntc >>= IXGBE_RXDADV_NEXTP_SHIFT;
+			/* update ntc based on RSC value */
+			ntc = le32_to_cpu(rx_desc->wb.upper.status_error);
+			ntc &= IXGBE_RXDADV_NEXTP_MASK;
+			ntc >>= IXGBE_RXDADV_NEXTP_SHIFT;
+		}
 	}
 
+	/* if we are the last buffer then there is nothing else to do */
+	if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)))
+		return false;
+
 	/* place skb in next buffer to be received */
 	rx_ring->rx_buffer_info[ntc].skb = skb;
 	rx_ring->rx_stats.non_eop_descs++;
@@ -1458,6 +1447,78 @@ static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring,
 }
 
 /**
+ * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail
+ * @rx_ring: rx descriptor ring packet is being transacted on
+ * @skb: pointer to current skb being adjusted
+ *
+ * This function is an ixgbe specific version of __pskb_pull_tail.  The
+ * main difference between this version and the original function is that
+ * this function can make several assumptions about the state of things
+ * that allow for significant optimizations versus the standard function.
+ * As a result we can do things like drop a frag and maintain an accurate
+ * truesize for the skb.
+ */
+static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring,
+			    struct sk_buff *skb)
+{
+	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
+	unsigned char *va;
+	unsigned int pull_len;
+
+	/*
+	 * it is valid to use page_address instead of kmap since we are
+	 * working with pages allocated out of the lomem pool per
+	 * alloc_page(GFP_ATOMIC)
+	 */
+	va = skb_frag_address(frag);
+
+	/*
+	 * we need the header to contain the greater of either ETH_HLEN or
+	 * 60 bytes if the skb->len is less than 60 for skb_pad.
+	 */
+	pull_len = ixgbe_get_headlen(va, IXGBE_RX_HDR_SIZE);
+
+	/* align pull length to size of long to optimize memcpy performance */
+	skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));
+
+	/* update all of the pointers */
+	skb_frag_size_sub(frag, pull_len);
+	frag->page_offset += pull_len;
+	skb->data_len -= pull_len;
+	skb->tail += pull_len;
+}
+
+/**
+ * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB
+ * @rx_ring: rx descriptor ring packet is being transacted on
+ * @skb: pointer to current skb being updated
+ *
+ * This function provides a basic DMA sync up for the first fragment of an
+ * skb.  The reason for doing this is that the first fragment cannot be
+ * unmapped until we have reached the end of packet descriptor for a buffer
+ * chain.
+ */
+static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring,
+				struct sk_buff *skb)
+{
+	/* if the page was released unmap it, else just sync our portion */
+	if (unlikely(IXGBE_CB(skb)->page_released)) {
+		dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma,
+			       ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE);
+		IXGBE_CB(skb)->page_released = false;
+	} else {
+		struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
+
+		dma_sync_single_range_for_cpu(rx_ring->dev,
+					      IXGBE_CB(skb)->dma,
+					      frag->page_offset,
+					      ixgbe_rx_bufsz(rx_ring),
+					      DMA_FROM_DEVICE);
+	}
+	IXGBE_CB(skb)->dma = 0;
+}
+
+/**
  * ixgbe_cleanup_headers - Correct corrupted or empty headers
  * @rx_ring: rx descriptor ring packet is being transacted on
  * @rx_desc: pointer to the EOP Rx descriptor
@@ -1479,24 +1540,7 @@ static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring,
 				  union ixgbe_adv_rx_desc *rx_desc,
 				  struct sk_buff *skb)
 {
-	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
 	struct net_device *netdev = rx_ring->netdev;
-	unsigned char *va;
-	unsigned int pull_len;
-
-	/* if the page was released unmap it, else just sync our portion */
-	if (unlikely(IXGBE_CB(skb)->page_released)) {
-		dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma,
-			       ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE);
-		IXGBE_CB(skb)->page_released = false;
-	} else {
-		dma_sync_single_range_for_cpu(rx_ring->dev,
-					      IXGBE_CB(skb)->dma,
-					      frag->page_offset,
-					      ixgbe_rx_bufsz(rx_ring),
-					      DMA_FROM_DEVICE);
-	}
-	IXGBE_CB(skb)->dma = 0;
 
 	/* verify that the packet does not have any known errors */
 	if (unlikely(ixgbe_test_staterr(rx_desc,
@@ -1506,40 +1550,9 @@ static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring,
 		return true;
 	}
 
-	/*
-	 * it is valid to use page_address instead of kmap since we are
-	 * working with pages allocated out of the lomem pool per
-	 * alloc_page(GFP_ATOMIC)
-	 */
-	va = skb_frag_address(frag);
-
-	/*
-	 * we need the header to contain the greater of either ETH_HLEN or
-	 * 60 bytes if the skb->len is less than 60 for skb_pad.
-	 */
-	pull_len = skb_frag_size(frag);
-	if (pull_len > IXGBE_RX_HDR_SIZE)
-		pull_len = ixgbe_get_headlen(va, IXGBE_RX_HDR_SIZE);
-
-	/* align pull length to size of long to optimize memcpy performance */
-	skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));
-
-	/* update all of the pointers */
-	skb_frag_size_sub(frag, pull_len);
-	frag->page_offset += pull_len;
-	skb->data_len -= pull_len;
-	skb->tail += pull_len;
-
-	/*
-	 * if we sucked the frag empty then we should free it,
-	 * if there are other frags here something is screwed up in hardware
-	 */
-	if (skb_frag_size(frag) == 0) {
-		BUG_ON(skb_shinfo(skb)->nr_frags != 1);
-		skb_shinfo(skb)->nr_frags = 0;
-		__skb_frag_unref(frag);
-		skb->truesize -= ixgbe_rx_bufsz(rx_ring);
-	}
+	/* place header in linear portion of buffer */
+	if (skb_is_nonlinear(skb))
+		ixgbe_pull_tail(rx_ring, skb);
 
 #ifdef IXGBE_FCOE
 	/* do not attempt to pad FCoE Frames as this will disrupt DDP */
@@ -1560,33 +1573,17 @@ static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring,
 }
 
 /**
- * ixgbe_can_reuse_page - determine if we can reuse a page
- * @rx_buffer: pointer to rx_buffer containing the page we want to reuse
- *
- * Returns true if page can be reused in another Rx buffer
- **/
-static inline bool ixgbe_can_reuse_page(struct ixgbe_rx_buffer *rx_buffer)
-{
-	struct page *page = rx_buffer->page;
-
-	/* if we are only owner of page and it is local we can reuse it */
-	return likely(page_count(page) == 1) &&
-	       likely(page_to_nid(page) == numa_node_id());
-}
-
-/**
  * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring
  * @rx_ring: rx descriptor ring to store buffers on
  * @old_buff: donor buffer to have page reused
  *
- * Syncronizes page for reuse by the adapter
+ * Synchronizes page for reuse by the adapter
  **/
 static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring,
 				struct ixgbe_rx_buffer *old_buff)
 {
 	struct ixgbe_rx_buffer *new_buff;
 	u16 nta = rx_ring->next_to_alloc;
-	u16 bufsz = ixgbe_rx_bufsz(rx_ring);
 
 	new_buff = &rx_ring->rx_buffer_info[nta];
 
@@ -1597,17 +1594,13 @@ static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring,
 	/* transfer page from old buffer to new buffer */
 	new_buff->page = old_buff->page;
 	new_buff->dma = old_buff->dma;
-
-	/* flip page offset to other buffer and store to new_buff */
-	new_buff->page_offset = old_buff->page_offset ^ bufsz;
+	new_buff->page_offset = old_buff->page_offset;
 
 	/* sync the buffer for use by the device */
 	dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma,
-					 new_buff->page_offset, bufsz,
+					 new_buff->page_offset,
+					 ixgbe_rx_bufsz(rx_ring),
 					 DMA_FROM_DEVICE);
-
-	/* bump ref count on page before it is given to the stack */
-	get_page(new_buff->page);
 }
 
 /**
@@ -1617,20 +1610,159 @@ static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring,
  * @rx_desc: descriptor containing length of buffer written by hardware
  * @skb: sk_buff to place the data into
  *
- * This function is based on skb_add_rx_frag.  I would have used that
- * function however it doesn't handle the truesize case correctly since we
- * are allocating more memory than might be used for a single receive.
+ * This function will add the data contained in rx_buffer->page to the skb.
+ * This is done either through a direct copy if the data in the buffer is
+ * less than the skb header size, otherwise it will just attach the page as
+ * a frag to the skb.
+ *
+ * The function will then update the page offset if necessary and return
+ * true if the buffer can be reused by the adapter.
  **/
-static void ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring,
+static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring,
 			      struct ixgbe_rx_buffer *rx_buffer,
-			      struct sk_buff *skb, int size)
+			      union ixgbe_adv_rx_desc *rx_desc,
+			      struct sk_buff *skb)
 {
-	skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
-			   rx_buffer->page, rx_buffer->page_offset,
-			   size);
-	skb->len += size;
-	skb->data_len += size;
-	skb->truesize += ixgbe_rx_bufsz(rx_ring);
+	struct page *page = rx_buffer->page;
+	unsigned int size = le16_to_cpu(rx_desc->wb.upper.length);
+#if (PAGE_SIZE < 8192)
+	unsigned int truesize = ixgbe_rx_bufsz(rx_ring);
+#else
+	unsigned int truesize = ALIGN(size, L1_CACHE_BYTES);
+	unsigned int last_offset = ixgbe_rx_pg_size(rx_ring) -
+				   ixgbe_rx_bufsz(rx_ring);
+#endif
+
+	if ((size <= IXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb)) {
+		unsigned char *va = page_address(page) + rx_buffer->page_offset;
+
+		memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long)));
+
+		/* we can reuse buffer as-is, just make sure it is local */
+		if (likely(page_to_nid(page) == numa_node_id()))
+			return true;
+
+		/* this page cannot be reused so discard it */
+		put_page(page);
+		return false;
+	}
+
+	skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
+			rx_buffer->page_offset, size, truesize);
+
+	/* avoid re-using remote pages */
+	if (unlikely(page_to_nid(page) != numa_node_id()))
+		return false;
+
+#if (PAGE_SIZE < 8192)
+	/* if we are only owner of page we can reuse it */
+	if (unlikely(page_count(page) != 1))
+		return false;
+
+	/* flip page offset to other buffer */
+	rx_buffer->page_offset ^= truesize;
+
+	/*
+	 * since we are the only owner of the page and we need to
+	 * increment it, just set the value to 2 in order to avoid
+	 * an unecessary locked operation
+	 */
+	atomic_set(&page->_count, 2);
+#else
+	/* move offset up to the next cache line */
+	rx_buffer->page_offset += truesize;
+
+	if (rx_buffer->page_offset > last_offset)
+		return false;
+
+	/* bump ref count on page before it is given to the stack */
+	get_page(page);
+#endif
+
+	return true;
+}
+
+static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring,
+					     union ixgbe_adv_rx_desc *rx_desc)
+{
+	struct ixgbe_rx_buffer *rx_buffer;
+	struct sk_buff *skb;
+	struct page *page;
+
+	rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean];
+	page = rx_buffer->page;
+	prefetchw(page);
+
+	skb = rx_buffer->skb;
+
+	if (likely(!skb)) {
+		void *page_addr = page_address(page) +
+				  rx_buffer->page_offset;
+
+		/* prefetch first cache line of first page */
+		prefetch(page_addr);
+#if L1_CACHE_BYTES < 128
+		prefetch(page_addr + L1_CACHE_BYTES);
+#endif
+
+		/* allocate a skb to store the frags */
+		skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
+						IXGBE_RX_HDR_SIZE);
+		if (unlikely(!skb)) {
+			rx_ring->rx_stats.alloc_rx_buff_failed++;
+			return NULL;
+		}
+
+		/*
+		 * we will be copying header into skb->data in
+		 * pskb_may_pull so it is in our interest to prefetch
+		 * it now to avoid a possible cache miss
+		 */
+		prefetchw(skb->data);
+
+		/*
+		 * Delay unmapping of the first packet. It carries the
+		 * header information, HW may still access the header
+		 * after the writeback.  Only unmap it when EOP is
+		 * reached
+		 */
+		if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)))
+			goto dma_sync;
+
+		IXGBE_CB(skb)->dma = rx_buffer->dma;
+	} else {
+		if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))
+			ixgbe_dma_sync_frag(rx_ring, skb);
+
+dma_sync:
+		/* we are reusing so sync this buffer for CPU use */
+		dma_sync_single_range_for_cpu(rx_ring->dev,
+					      rx_buffer->dma,
+					      rx_buffer->page_offset,
+					      ixgbe_rx_bufsz(rx_ring),
+					      DMA_FROM_DEVICE);
+	}
+
+	/* pull page into skb */
+	if (ixgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) {
+		/* hand second half of page back to the ring */
+		ixgbe_reuse_rx_page(rx_ring, rx_buffer);
+	} else if (IXGBE_CB(skb)->dma == rx_buffer->dma) {
+		/* the page has been released from the ring */
+		IXGBE_CB(skb)->page_released = true;
+	} else {
+		/* we are not reusing the buffer so unmap it */
+		dma_unmap_page(rx_ring->dev, rx_buffer->dma,
+			       ixgbe_rx_pg_size(rx_ring),
+			       DMA_FROM_DEVICE);
+	}
+
+	/* clear contents of buffer_info */
+	rx_buffer->skb = NULL;
+	rx_buffer->dma = 0;
+	rx_buffer->page = NULL;
+
+	return skb;
 }
 
 /**
@@ -1653,16 +1785,14 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
 #ifdef IXGBE_FCOE
 	struct ixgbe_adapter *adapter = q_vector->adapter;
-	int ddp_bytes = 0;
+	int ddp_bytes;
+	unsigned int mss = 0;
 #endif /* IXGBE_FCOE */
 	u16 cleaned_count = ixgbe_desc_unused(rx_ring);
 
 	do {
-		struct ixgbe_rx_buffer *rx_buffer;
 		union ixgbe_adv_rx_desc *rx_desc;
 		struct sk_buff *skb;
-		struct page *page;
-		u16 ntc;
 
 		/* return some buffers to hardware, one at a time is too slow */
 		if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) {
@@ -1670,9 +1800,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 			cleaned_count = 0;
 		}
 
-		ntc = rx_ring->next_to_clean;
-		rx_desc = IXGBE_RX_DESC(rx_ring, ntc);
-		rx_buffer = &rx_ring->rx_buffer_info[ntc];
+		rx_desc = IXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean);
 
 		if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_DD))
 			break;
@@ -1684,75 +1812,12 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 		 */
 		rmb();
 
-		page = rx_buffer->page;
-		prefetchw(page);
-
-		skb = rx_buffer->skb;
-
-		if (likely(!skb)) {
-			void *page_addr = page_address(page) +
-					  rx_buffer->page_offset;
-
-			/* prefetch first cache line of first page */
-			prefetch(page_addr);
-#if L1_CACHE_BYTES < 128
-			prefetch(page_addr + L1_CACHE_BYTES);
-#endif
+		/* retrieve a buffer from the ring */
+		skb = ixgbe_fetch_rx_buffer(rx_ring, rx_desc);
 
-			/* allocate a skb to store the frags */
-			skb = netdev_alloc_skb_ip_align(rx_ring->netdev,
-							IXGBE_RX_HDR_SIZE);
-			if (unlikely(!skb)) {
-				rx_ring->rx_stats.alloc_rx_buff_failed++;
-				break;
-			}
-
-			/*
-			 * we will be copying header into skb->data in
-			 * pskb_may_pull so it is in our interest to prefetch
-			 * it now to avoid a possible cache miss
-			 */
-			prefetchw(skb->data);
-
-			/*
-			 * Delay unmapping of the first packet. It carries the
-			 * header information, HW may still access the header
-			 * after the writeback.  Only unmap it when EOP is
-			 * reached
-			 */
-			IXGBE_CB(skb)->dma = rx_buffer->dma;
-		} else {
-			/* we are reusing so sync this buffer for CPU use */
-			dma_sync_single_range_for_cpu(rx_ring->dev,
-						      rx_buffer->dma,
-						      rx_buffer->page_offset,
-						      ixgbe_rx_bufsz(rx_ring),
-						      DMA_FROM_DEVICE);
-		}
-
-		/* pull page into skb */
-		ixgbe_add_rx_frag(rx_ring, rx_buffer, skb,
-				  le16_to_cpu(rx_desc->wb.upper.length));
-
-		if (ixgbe_can_reuse_page(rx_buffer)) {
-			/* hand second half of page back to the ring */
-			ixgbe_reuse_rx_page(rx_ring, rx_buffer);
-		} else if (IXGBE_CB(skb)->dma == rx_buffer->dma) {
-			/* the page has been released from the ring */
-			IXGBE_CB(skb)->page_released = true;
-		} else {
-			/* we are not reusing the buffer so unmap it */
-			dma_unmap_page(rx_ring->dev, rx_buffer->dma,
-				       ixgbe_rx_pg_size(rx_ring),
-				       DMA_FROM_DEVICE);
-		}
-
-		/* clear contents of buffer_info */
-		rx_buffer->skb = NULL;
-		rx_buffer->dma = 0;
-		rx_buffer->page = NULL;
-
-		ixgbe_get_rsc_cnt(rx_ring, rx_desc, skb);
+		/* exit if we failed to retrieve a buffer */
+		if (!skb)
+			break;
 
 		cleaned_count++;
 
@@ -1775,6 +1840,20 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 		/* if ddp, not passing to ULD unless for FCP_RSP or error */
 		if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) {
 			ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb);
+			/* include DDPed FCoE data */
+			if (ddp_bytes > 0) {
+				if (!mss) {
+					mss = rx_ring->netdev->mtu -
+						sizeof(struct fcoe_hdr) -
+						sizeof(struct fc_frame_header) -
+						sizeof(struct fcoe_crc_eof);
+					if (mss > 512)
+						mss &= ~511;
+				}
+				total_rx_bytes += ddp_bytes;
+				total_rx_packets += DIV_ROUND_UP(ddp_bytes,
+								 mss);
+			}
 			if (!ddp_bytes) {
 				dev_kfree_skb_any(skb);
 				continue;
@@ -1788,21 +1867,6 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 		budget--;
 	} while (likely(budget));
 
-#ifdef IXGBE_FCOE
-	/* include DDPed FCoE data */
-	if (ddp_bytes > 0) {
-		unsigned int mss;
-
-		mss = rx_ring->netdev->mtu - sizeof(struct fcoe_hdr) -
-			sizeof(struct fc_frame_header) -
-			sizeof(struct fcoe_crc_eof);
-		if (mss > 512)
-			mss &= ~511;
-		total_rx_bytes += ddp_bytes;
-		total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss);
-	}
-
-#endif /* IXGBE_FCOE */
 	u64_stats_update_begin(&rx_ring->syncp);
 	rx_ring->stats.packets += total_rx_packets;
 	rx_ring->stats.bytes += total_rx_bytes;
@@ -2868,11 +2932,7 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter,
 	srrctl = IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT;
 
 	/* configure the packet buffer length */
-#if PAGE_SIZE > IXGBE_MAX_RXBUFFER
-	srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
-#else
 	srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
-#endif
 
 	/* configure descriptor type */
 	srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
@@ -2980,13 +3040,7 @@ static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter,
 	 * total size of max desc * buf_len is not greater
 	 * than 65536
 	 */
-#if (PAGE_SIZE <= 8192)
 	rscctrl |= IXGBE_RSCCTL_MAXDESC_16;
-#elif (PAGE_SIZE <= 16384)
-	rscctrl |= IXGBE_RSCCTL_MAXDESC_8;
-#else
-	rscctrl |= IXGBE_RSCCTL_MAXDESC_4;
-#endif
 	IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl);
 }
 
@@ -3606,8 +3660,6 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
 	if (hw->mac.type == ixgbe_mac_82598EB)
 		netif_set_gso_max_size(adapter->netdev, 32768);
 
-	hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true);
-
 #ifdef IXGBE_FCOE
 	if (adapter->netdev->features & NETIF_F_FCOE_MTU)
 		max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
@@ -3807,6 +3859,11 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter)
 #ifdef CONFIG_IXGBE_DCB
 	ixgbe_configure_dcb(adapter);
 #endif
+	/*
+	 * We must restore virtualization before VLANs or else
+	 * the VLVF registers will not be populated
+	 */
+	ixgbe_configure_virtualization(adapter);
 
 	ixgbe_set_rx_mode(adapter->netdev);
 	ixgbe_restore_vlan(adapter);
@@ -3838,8 +3895,6 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter)
 		break;
 	}
 
-	ixgbe_configure_virtualization(adapter);
-
 #ifdef IXGBE_FCOE
 	/* configure FCoE L2 filters, redirection table, and Rx control */
 	ixgbe_configure_fcoe(adapter);
@@ -4130,27 +4185,6 @@ void ixgbe_reset(struct ixgbe_adapter *adapter)
 }
 
 /**
- * ixgbe_init_rx_page_offset - initialize page offset values for Rx buffers
- * @rx_ring: ring to setup
- *
- * On many IA platforms the L1 cache has a critical stride of 4K, this
- * results in each receive buffer starting in the same cache set.  To help
- * reduce the pressure on this cache set we can interleave the offsets so
- * that only every other buffer will be in the same cache set.
- **/
-static void ixgbe_init_rx_page_offset(struct ixgbe_ring *rx_ring)
-{
-	struct ixgbe_rx_buffer *rx_buffer = rx_ring->rx_buffer_info;
-	u16 i;
-
-	for (i = 0; i < rx_ring->count; i += 2) {
-		rx_buffer[0].page_offset = 0;
-		rx_buffer[1].page_offset = ixgbe_rx_bufsz(rx_ring);
-		rx_buffer = &rx_buffer[2];
-	}
-}
-
-/**
  * ixgbe_clean_rx_ring - Free Rx Buffers per Queue
  * @rx_ring: ring to free buffers from
  **/
@@ -4195,8 +4229,6 @@ static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring)
 	size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count;
 	memset(rx_ring->rx_buffer_info, 0, size);
 
-	ixgbe_init_rx_page_offset(rx_ring);
-
 	/* Zero out the descriptor ring */
 	memset(rx_ring->desc, 0, rx_ring->size);
 
@@ -4646,8 +4678,6 @@ int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring)
 	rx_ring->next_to_clean = 0;
 	rx_ring->next_to_use = 0;
 
-	ixgbe_init_rx_page_offset(rx_ring);
-
 	return 0;
 err:
 	vfree(rx_ring->rx_buffer_info);
@@ -5530,8 +5560,9 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
 {
 	u32 ssvpc;
 
-	/* Do not perform spoof check for 82598 */
-	if (adapter->hw.mac.type == ixgbe_mac_82598EB)
+	/* Do not perform spoof check for 82598 or if not in IOV mode */
+	if (adapter->hw.mac.type == ixgbe_mac_82598EB ||
+	    adapter->num_vfs == 0)
 		return;
 
 	ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC);
@@ -5543,7 +5574,7 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
 	if (!ssvpc)
 		return;
 
-	e_warn(drv, "%d Spoofed packets detected\n", ssvpc);
+	e_warn(drv, "%u Spoofed packets detected\n", ssvpc);
 }
 
 /**
@@ -5874,9 +5905,12 @@ static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
 	u32 type_tucmd = 0;
 
 	if (skb->ip_summed != CHECKSUM_PARTIAL) {
-		if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN) &&
-		    !(first->tx_flags & IXGBE_TX_FLAGS_TXSW))
-			return;
+		if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN)) {
+			if (unlikely(skb->no_fcs))
+				first->tx_flags |= IXGBE_TX_FLAGS_NO_IFCS;
+			if (!(first->tx_flags & IXGBE_TX_FLAGS_TXSW))
+				return;
+		}
 	} else {
 		u8 l4_hdr = 0;
 		switch (first->protocol) {
@@ -5938,7 +5972,6 @@ static __le32 ixgbe_tx_cmd_type(u32 tx_flags)
 {
 	/* set type for advanced descriptor with frame checksum insertion */
 	__le32 cmd_type = cpu_to_le32(IXGBE_ADVTXD_DTYP_DATA |
-				      IXGBE_ADVTXD_DCMD_IFCS |
 				      IXGBE_ADVTXD_DCMD_DEXT);
 
 	/* set HW vlan bit if vlan is present */
@@ -5958,6 +5991,10 @@ static __le32 ixgbe_tx_cmd_type(u32 tx_flags)
 #endif
 		cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_TSE);
 
+	/* insert frame checksum */
+	if (!(tx_flags & IXGBE_TX_FLAGS_NO_IFCS))
+		cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_IFCS);
+
 	return cmd_type;
 }
 
@@ -6063,8 +6100,6 @@ static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
 		if (likely(!data_len))
 			break;
 
-		if (unlikely(skb->no_fcs))
-			cmd_type &= ~(cpu_to_le32(IXGBE_ADVTXD_DCMD_IFCS));
 		tx_desc->read.cmd_type_len = cmd_type | cpu_to_le32(size);
 
 		i++;
@@ -6854,9 +6889,9 @@ static int ixgbe_set_features(struct net_device *netdev,
 	return 0;
 }
 
-static int ixgbe_ndo_fdb_add(struct ndmsg *ndm,
+static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 			     struct net_device *dev,
-			     unsigned char *addr,
+			     const unsigned char *addr,
 			     u16 flags)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
@@ -6893,7 +6928,7 @@ static int ixgbe_ndo_fdb_add(struct ndmsg *ndm,
 
 static int ixgbe_ndo_fdb_del(struct ndmsg *ndm,
 			     struct net_device *dev,
-			     unsigned char *addr)
+			     const unsigned char *addr)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
 	int err = -EOPNOTSUPP;
@@ -7136,11 +7171,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 		goto err_ioremap;
 	}
 
-	for (i = 1; i <= 5; i++) {
-		if (pci_resource_len(pdev, i) == 0)
-			continue;
-	}
-
 	netdev->netdev_ops = &ixgbe_netdev_ops;
 	ixgbe_set_ethtool_ops(netdev);
 	netdev->watchdog_timeo = 5 * HZ;
@@ -7419,6 +7449,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 		e_err(probe, "failed to allocate sysfs resources\n");
 #endif /* CONFIG_IXGBE_HWMON */
 
+#ifdef CONFIG_DEBUG_FS
+	ixgbe_dbg_adapter_init(adapter);
+#endif /* CONFIG_DEBUG_FS */
+
 	return 0;
 
 err_register:
@@ -7453,6 +7487,10 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev)
 	struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
 	struct net_device *netdev = adapter->netdev;
 
+#ifdef CONFIG_DEBUG_FS
+	ixgbe_dbg_adapter_exit(adapter);
+#endif /*CONFIG_DEBUG_FS */
+
 	set_bit(__IXGBE_DOWN, &adapter->state);
 	cancel_work_sync(&adapter->service_task);
 
@@ -7527,7 +7565,7 @@ static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev,
 		goto skip_bad_vf_detection;
 
 	bdev = pdev->bus->self;
-	while (bdev && (bdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT))
+	while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT))
 		bdev = bdev->bus->self;
 
 	if (!bdev)
@@ -7677,7 +7715,7 @@ static void ixgbe_io_resume(struct pci_dev *pdev)
 	netif_device_attach(netdev);
 }
 
-static struct pci_error_handlers ixgbe_err_handler = {
+static const struct pci_error_handlers ixgbe_err_handler = {
 	.error_detected = ixgbe_io_error_detected,
 	.slot_reset = ixgbe_io_slot_reset,
 	.resume = ixgbe_io_resume,
@@ -7708,6 +7746,10 @@ static int __init ixgbe_init_module(void)
 	pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version);
 	pr_info("%s\n", ixgbe_copyright);
 
+#ifdef CONFIG_DEBUG_FS
+	ixgbe_dbg_init();
+#endif /* CONFIG_DEBUG_FS */
+
 #ifdef CONFIG_IXGBE_DCA
 	dca_register_notify(&dca_notifier);
 #endif
@@ -7730,6 +7772,11 @@ static void __exit ixgbe_exit_module(void)
 	dca_unregister_notify(&dca_notifier);
 #endif
 	pci_unregister_driver(&ixgbe_driver);
+
+#ifdef CONFIG_DEBUG_FS
+	ixgbe_dbg_exit();
+#endif /* CONFIG_DEBUG_FS */
+
 	rcu_barrier(); /* Wait for completion of call_rcu()'s */
 }
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
index 3456d561714..39881cb17a4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
@@ -960,7 +960,8 @@ void ixgbe_ptp_init(struct ixgbe_adapter *adapter)
 	/* (Re)start the overflow check */
 	adapter->flags2 |= IXGBE_FLAG2_OVERFLOW_CHECK_ENABLED;
 
-	adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps);
+	adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps,
+						&adapter->pdev->dev);
 	if (IS_ERR(adapter->ptp_clock)) {
 		adapter->ptp_clock = NULL;
 		e_dev_err("ptp_clock_register failed\n");
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 4fea8716ab6..dce48bf64d9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -346,6 +346,10 @@ void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
 			     u32 vf)
 {
+	/* VLAN 0 is a special case, don't allow it to be removed */
+	if (!vid && !add)
+		return 0;
+
 	return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
 }
 
@@ -414,6 +418,7 @@ static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
 				  VLAN_PRIO_SHIFT)), vf);
 		ixgbe_set_vmolr(hw, vf, false);
 	} else {
+		ixgbe_set_vf_vlan(adapter, true, 0, vf);
 		ixgbe_set_vmvir(adapter, 0, vf);
 		ixgbe_set_vmolr(hw, vf, true);
 	}
@@ -810,9 +815,9 @@ out:
        return err;
 }
 
-static int ixgbe_link_mbps(int internal_link_speed)
+static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
 {
-	switch (internal_link_speed) {
+	switch (adapter->link_speed) {
 	case IXGBE_LINK_SPEED_100_FULL:
 		return 100;
 	case IXGBE_LINK_SPEED_1GB_FULL:
@@ -824,27 +829,30 @@ static int ixgbe_link_mbps(int internal_link_speed)
 	}
 }
 
-static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate,
-				    int link_speed)
+static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
 {
-	int rf_dec, rf_int;
-	u32 bcnrc_val;
+	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
+	struct ixgbe_hw *hw = &adapter->hw;
+	u32 bcnrc_val = 0;
+	u16 queue, queues_per_pool;
+	u16 tx_rate = adapter->vfinfo[vf].tx_rate;
+
+	if (tx_rate) {
+		/* start with base link speed value */
+		bcnrc_val = adapter->vf_rate_link_speed;
 
-	if (tx_rate != 0) {
 		/* Calculate the rate factor values to set */
-		rf_int = link_speed / tx_rate;
-		rf_dec = (link_speed - (rf_int * tx_rate));
-		rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate;
-
-		bcnrc_val = IXGBE_RTTBCNRC_RS_ENA;
-		bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) &
-		               IXGBE_RTTBCNRC_RF_INT_MASK);
-		bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK);
-	} else {
-		bcnrc_val = 0;
+		bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
+		bcnrc_val /= tx_rate;
+
+		/* clear everything but the rate factor */
+		bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
+			     IXGBE_RTTBCNRC_RF_DEC_MASK;
+
+		/* enable the rate scheduler */
+		bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
 	}
 
-	IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */
 	/*
 	 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
 	 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
@@ -861,53 +869,68 @@ static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate,
 		break;
 	}
 
-	IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
+	/* determine how many queues per pool based on VMDq mask */
+	queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
+
+	/* write value for all Tx queues belonging to VF */
+	for (queue = 0; queue < queues_per_pool; queue++) {
+		unsigned int reg_idx = (vf * queues_per_pool) + queue;
+
+		IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
+		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
+	}
 }
 
 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
 {
-	int actual_link_speed, i;
-	bool reset_rate = false;
+	int i;
 
 	/* VF Tx rate limit was not set */
-	if (adapter->vf_rate_link_speed == 0)
+	if (!adapter->vf_rate_link_speed)
 		return;
 
-	actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
-	if (actual_link_speed != adapter->vf_rate_link_speed) {
-		reset_rate = true;
+	if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
 		adapter->vf_rate_link_speed = 0;
 		dev_info(&adapter->pdev->dev,
-		         "Link speed has been changed. VF Transmit rate "
-		         "is disabled\n");
+			 "Link speed has been changed. VF Transmit rate is disabled\n");
 	}
 
 	for (i = 0; i < adapter->num_vfs; i++) {
-		if (reset_rate)
+		if (!adapter->vf_rate_link_speed)
 			adapter->vfinfo[i].tx_rate = 0;
 
-		ixgbe_set_vf_rate_limit(&adapter->hw, i,
-					adapter->vfinfo[i].tx_rate,
-					actual_link_speed);
+		ixgbe_set_vf_rate_limit(adapter, i);
 	}
 }
 
 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	struct ixgbe_hw *hw = &adapter->hw;
-	int actual_link_speed;
+	int link_speed;
+
+	/* verify VF is active */
+	if (vf >= adapter->num_vfs)
+		return -EINVAL;
 
-	actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
-	if ((vf >= adapter->num_vfs) || (!adapter->link_up) ||
-	    (tx_rate > actual_link_speed) || (actual_link_speed != 10000) ||
-	    ((tx_rate != 0) && (tx_rate <= 10)))
-	    /* rate limit cannot be set to 10Mb or less in 10Gb adapters */
+	/* verify link is up */
+	if (!adapter->link_up)
 		return -EINVAL;
 
-	adapter->vf_rate_link_speed = actual_link_speed;
-	adapter->vfinfo[vf].tx_rate = (u16)tx_rate;
-	ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed);
+	/* verify we are linked at 10Gbps */
+	link_speed = ixgbe_link_mbps(adapter);
+	if (link_speed != 10000)
+		return -EINVAL;
+
+	/* rate limit cannot be less than 10Mbs or greater than link speed */
+	if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed)))
+		return -EINVAL;
+
+	/* store values */
+	adapter->vf_rate_link_speed = link_speed;
+	adapter->vfinfo[vf].tx_rate = tx_rate;
+
+	/* update hardware configuration */
+	ixgbe_set_vf_rate_limit(adapter, vf);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/ixgbevf/defines.h b/drivers/net/ethernet/intel/ixgbevf/defines.h
index 418af827b23..da17ccf5c09 100644
--- a/drivers/net/ethernet/intel/ixgbevf/defines.h
+++ b/drivers/net/ethernet/intel/ixgbevf/defines.h
@@ -272,5 +272,6 @@ struct ixgbe_adv_tx_context_desc {
 /* Error Codes */
 #define IXGBE_ERR_INVALID_MAC_ADDR              -1
 #define IXGBE_ERR_RESET_FAILED                  -2
+#define IXGBE_ERR_INVALID_ARGUMENT              -3
 
 #endif /* _IXGBEVF_DEFINES_H_ */
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index 98cadb0c4da..383b4e1cd17 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -101,7 +101,9 @@ struct ixgbevf_ring {
 
 /* Supported Rx Buffer Sizes */
 #define IXGBEVF_RXBUFFER_256   256    /* Used for packet split */
-#define IXGBEVF_RXBUFFER_2048  2048
+#define IXGBEVF_RXBUFFER_3K    3072
+#define IXGBEVF_RXBUFFER_7K    7168
+#define IXGBEVF_RXBUFFER_15K   15360
 #define IXGBEVF_MAX_RXBUFFER   16384  /* largest size for single descriptor */
 
 #define IXGBEVF_RX_HDR_SIZE IXGBEVF_RXBUFFER_256
@@ -259,6 +261,11 @@ enum ixbgevf_state_t {
 	__IXGBEVF_DOWN
 };
 
+struct ixgbevf_cb {
+	struct sk_buff *prev;
+};
+#define IXGBE_CB(skb) ((struct ixgbevf_cb *)(skb)->cb)
+
 enum ixgbevf_boards {
 	board_82599_vf,
 	board_X540_vf,
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 60ef6458741..0ee9bd4819f 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -263,6 +263,8 @@ cont_loop:
 	tx_ring->total_bytes += total_bytes;
 	tx_ring->total_packets += total_packets;
 	u64_stats_update_end(&tx_ring->syncp);
+	q_vector->tx.total_bytes += total_bytes;
+	q_vector->tx.total_packets += total_packets;
 
 	return count < tx_ring->count;
 }
@@ -272,12 +274,10 @@ cont_loop:
  * @q_vector: structure containing interrupt and ring information
  * @skb: packet to send up
  * @status: hardware indication of status of receive
- * @rx_ring: rx descriptor ring (for a specific queue) to setup
  * @rx_desc: rx descriptor
  **/
 static void ixgbevf_receive_skb(struct ixgbevf_q_vector *q_vector,
 				struct sk_buff *skb, u8 status,
-				struct ixgbevf_ring *ring,
 				union ixgbe_adv_rx_desc *rx_desc)
 {
 	struct ixgbevf_adapter *adapter = q_vector->adapter;
@@ -433,11 +433,21 @@ static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
 
 		if (!(staterr & IXGBE_RXD_STAT_EOP)) {
 			skb->next = next_buffer->skb;
-			skb->next->prev = skb;
+			IXGBE_CB(skb->next)->prev = skb;
 			adapter->non_eop_descs++;
 			goto next_desc;
 		}
 
+		/* we should not be chaining buffers, if we did drop the skb */
+		if (IXGBE_CB(skb)->prev) {
+			do {
+				struct sk_buff *this = skb;
+				skb = IXGBE_CB(skb)->prev;
+				dev_kfree_skb(this);
+			} while (skb);
+			goto next_desc;
+		}
+
 		/* ERR_MASK will only have valid bits if EOP set */
 		if (unlikely(staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK)) {
 			dev_kfree_skb_irq(skb);
@@ -461,7 +471,7 @@ static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
 		}
 		skb->protocol = eth_type_trans(skb, rx_ring->netdev);
 
-		ixgbevf_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc);
+		ixgbevf_receive_skb(q_vector, skb, staterr, rx_desc);
 
 next_desc:
 		rx_desc->wb.upper.status_error = 0;
@@ -490,6 +500,8 @@ next_desc:
 	rx_ring->total_packets += total_rx_packets;
 	rx_ring->total_bytes += total_rx_bytes;
 	u64_stats_update_end(&rx_ring->syncp);
+	q_vector->rx.total_packets += total_rx_packets;
+	q_vector->rx.total_bytes += total_rx_bytes;
 
 	return !!budget;
 }
@@ -716,40 +728,15 @@ static void ixgbevf_set_itr(struct ixgbevf_q_vector *q_vector)
 	}
 }
 
-static irqreturn_t ixgbevf_msix_mbx(int irq, void *data)
+static irqreturn_t ixgbevf_msix_other(int irq, void *data)
 {
 	struct ixgbevf_adapter *adapter = data;
 	struct ixgbe_hw *hw = &adapter->hw;
-	u32 msg;
-	bool got_ack = false;
-
-	if (!hw->mbx.ops.check_for_ack(hw))
-		got_ack = true;
 
-	if (!hw->mbx.ops.check_for_msg(hw)) {
-		hw->mbx.ops.read(hw, &msg, 1);
+	hw->mac.get_link_status = 1;
 
-		if ((msg & IXGBE_MBVFICR_VFREQ_MASK) == IXGBE_PF_CONTROL_MSG)
-			mod_timer(&adapter->watchdog_timer,
-				  round_jiffies(jiffies + 1));
-
-		if (msg & IXGBE_VT_MSGTYPE_NACK)
-			pr_warn("Last Request of type %2.2x to PF Nacked\n",
-				msg & 0xFF);
-		/*
-		 * Restore the PFSTS bit in case someone is polling for a
-		 * return message from the PF
-		 */
-		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFSTS;
-	}
-
-	/*
-	 * checking for the ack clears the PFACK bit.  Place
-	 * it back in the v2p_mailbox cache so that anyone
-	 * polling for an ack will not miss it
-	 */
-	if (got_ack)
-		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFACK;
+	if (!test_bit(__IXGBEVF_DOWN, &adapter->state))
+		mod_timer(&adapter->watchdog_timer, jiffies);
 
 	IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, adapter->eims_other);
 
@@ -899,10 +886,10 @@ static int ixgbevf_request_msix_irqs(struct ixgbevf_adapter *adapter)
 	}
 
 	err = request_irq(adapter->msix_entries[vector].vector,
-			  &ixgbevf_msix_mbx, 0, netdev->name, adapter);
+			  &ixgbevf_msix_other, 0, netdev->name, adapter);
 	if (err) {
 		hw_dbg(&adapter->hw,
-		       "request_irq for msix_mbx failed: %d\n", err);
+		       "request_irq for msix_other failed: %d\n", err);
 		goto free_queue_irqs;
 	}
 
@@ -1057,15 +1044,46 @@ static void ixgbevf_configure_srrctl(struct ixgbevf_adapter *adapter, int index)
 
 	srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
 
-	if (rx_ring->rx_buf_len == MAXIMUM_ETHERNET_VLAN_SIZE)
-		srrctl |= IXGBEVF_RXBUFFER_2048 >>
-			IXGBE_SRRCTL_BSIZEPKT_SHIFT;
-	else
-		srrctl |= rx_ring->rx_buf_len >>
-			IXGBE_SRRCTL_BSIZEPKT_SHIFT;
+	srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >>
+		  IXGBE_SRRCTL_BSIZEPKT_SHIFT;
+
 	IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(index), srrctl);
 }
 
+static void ixgbevf_set_rx_buffer_len(struct ixgbevf_adapter *adapter)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+	int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+	int i;
+	u16 rx_buf_len;
+
+	/* notify the PF of our intent to use this size of frame */
+	ixgbevf_rlpml_set_vf(hw, max_frame);
+
+	/* PF will allow an extra 4 bytes past for vlan tagged frames */
+	max_frame += VLAN_HLEN;
+
+	/*
+	 * Make best use of allocation by using all but 1K of a
+	 * power of 2 allocation that will be used for skb->head.
+	 */
+	if ((hw->mac.type == ixgbe_mac_X540_vf) &&
+	    (max_frame <= MAXIMUM_ETHERNET_VLAN_SIZE))
+		rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE;
+	else if (max_frame <= IXGBEVF_RXBUFFER_3K)
+		rx_buf_len = IXGBEVF_RXBUFFER_3K;
+	else if (max_frame <= IXGBEVF_RXBUFFER_7K)
+		rx_buf_len = IXGBEVF_RXBUFFER_7K;
+	else if (max_frame <= IXGBEVF_RXBUFFER_15K)
+		rx_buf_len = IXGBEVF_RXBUFFER_15K;
+	else
+		rx_buf_len = IXGBEVF_MAX_RXBUFFER;
+
+	for (i = 0; i < adapter->num_rx_queues; i++)
+		adapter->rx_ring[i].rx_buf_len = rx_buf_len;
+}
+
 /**
  * ixgbevf_configure_rx - Configure 82599 VF Receive Unit after Reset
  * @adapter: board private structure
@@ -1076,18 +1094,14 @@ static void ixgbevf_configure_rx(struct ixgbevf_adapter *adapter)
 {
 	u64 rdba;
 	struct ixgbe_hw *hw = &adapter->hw;
-	struct net_device *netdev = adapter->netdev;
-	int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
 	int i, j;
 	u32 rdlen;
-	int rx_buf_len;
 
 	/* PSRTYPE must be initialized in 82599 */
 	IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, 0);
-	if (netdev->mtu <= ETH_DATA_LEN)
-		rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE;
-	else
-		rx_buf_len = ALIGN(max_frame, 1024);
+
+	/* set_rx_buffer_len must be called before ring initialization */
+	ixgbevf_set_rx_buffer_len(adapter);
 
 	rdlen = adapter->rx_ring[0].count * sizeof(union ixgbe_adv_rx_desc);
 	/* Setup the HW Rx Head and Tail Descriptor Pointers and
@@ -1103,7 +1117,6 @@ static void ixgbevf_configure_rx(struct ixgbevf_adapter *adapter)
 		IXGBE_WRITE_REG(hw, IXGBE_VFRDT(j), 0);
 		adapter->rx_ring[i].head = IXGBE_VFRDH(j);
 		adapter->rx_ring[i].tail = IXGBE_VFRDT(j);
-		adapter->rx_ring[i].rx_buf_len = rx_buf_len;
 
 		ixgbevf_configure_srrctl(adapter, j);
 	}
@@ -1113,36 +1126,47 @@ static int ixgbevf_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 	struct ixgbe_hw *hw = &adapter->hw;
+	int err;
+
+	if (!hw->mac.ops.set_vfta)
+		return -EOPNOTSUPP;
 
 	spin_lock(&adapter->mbx_lock);
 
 	/* add VID to filter table */
-	if (hw->mac.ops.set_vfta)
-		hw->mac.ops.set_vfta(hw, vid, 0, true);
+	err = hw->mac.ops.set_vfta(hw, vid, 0, true);
 
 	spin_unlock(&adapter->mbx_lock);
 
+	/* translate error return types so error makes sense */
+	if (err == IXGBE_ERR_MBX)
+		return -EIO;
+
+	if (err == IXGBE_ERR_INVALID_ARGUMENT)
+		return -EACCES;
+
 	set_bit(vid, adapter->active_vlans);
 
-	return 0;
+	return err;
 }
 
 static int ixgbevf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 	struct ixgbe_hw *hw = &adapter->hw;
+	int err = -EOPNOTSUPP;
 
 	spin_lock(&adapter->mbx_lock);
 
 	/* remove VID from filter table */
 	if (hw->mac.ops.set_vfta)
-		hw->mac.ops.set_vfta(hw, vid, 0, false);
+		err = hw->mac.ops.set_vfta(hw, vid, 0, false);
 
 	spin_unlock(&adapter->mbx_lock);
 
 	clear_bit(vid, adapter->active_vlans);
 
-	return 0;
+	return err;
 }
 
 static void ixgbevf_restore_vlan(struct ixgbevf_adapter *adapter)
@@ -1308,6 +1332,25 @@ static void ixgbevf_init_last_counter_stats(struct ixgbevf_adapter *adapter)
 	adapter->stats.base_vfmprc = adapter->stats.last_vfmprc;
 }
 
+static void ixgbevf_negotiate_api(struct ixgbevf_adapter *adapter)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	int api[] = { ixgbe_mbox_api_10,
+		      ixgbe_mbox_api_unknown };
+	int err = 0, idx = 0;
+
+	spin_lock(&adapter->mbx_lock);
+
+	while (api[idx] != ixgbe_mbox_api_unknown) {
+		err = ixgbevf_negotiate_api_version(hw, api[idx]);
+		if (!err)
+			break;
+		idx++;
+	}
+
+	spin_unlock(&adapter->mbx_lock);
+}
+
 static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
@@ -1315,7 +1358,6 @@ static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
 	int i, j = 0;
 	int num_rx_rings = adapter->num_rx_queues;
 	u32 txdctl, rxdctl;
-	u32 msg[2];
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
 		j = adapter->tx_ring[i].reg_idx;
@@ -1356,10 +1398,6 @@ static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
 			hw->mac.ops.set_rar(hw, 0, hw->mac.perm_addr, 0);
 	}
 
-	msg[0] = IXGBE_VF_SET_LPE;
-	msg[1] = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
-	hw->mbx.ops.write_posted(hw, msg, 2);
-
 	spin_unlock(&adapter->mbx_lock);
 
 	clear_bit(__IXGBEVF_DOWN, &adapter->state);
@@ -1371,6 +1409,7 @@ static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
 	ixgbevf_save_reset_stats(adapter);
 	ixgbevf_init_last_counter_stats(adapter);
 
+	hw->mac.get_link_status = 1;
 	mod_timer(&adapter->watchdog_timer, jiffies);
 }
 
@@ -1378,6 +1417,8 @@ void ixgbevf_up(struct ixgbevf_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
 
+	ixgbevf_negotiate_api(adapter);
+
 	ixgbevf_configure(adapter);
 
 	ixgbevf_up_complete(adapter);
@@ -1419,7 +1460,7 @@ static void ixgbevf_clean_rx_ring(struct ixgbevf_adapter *adapter,
 			rx_buffer_info->skb = NULL;
 			do {
 				struct sk_buff *this = skb;
-				skb = skb->prev;
+				skb = IXGBE_CB(skb)->prev;
 				dev_kfree_skb(this);
 			} while (skb);
 		}
@@ -1547,8 +1588,6 @@ void ixgbevf_down(struct ixgbevf_adapter *adapter)
 
 void ixgbevf_reinit_locked(struct ixgbevf_adapter *adapter)
 {
-	struct ixgbe_hw *hw = &adapter->hw;
-
 	WARN_ON(in_interrupt());
 
 	while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
@@ -1561,10 +1600,8 @@ void ixgbevf_reinit_locked(struct ixgbevf_adapter *adapter)
 	 * watchdog task will continue to schedule reset tasks until
 	 * the PF is up and running.
 	 */
-	if (!hw->mac.ops.reset_hw(hw)) {
-		ixgbevf_down(adapter);
-		ixgbevf_up(adapter);
-	}
+	ixgbevf_down(adapter);
+	ixgbevf_up(adapter);
 
 	clear_bit(__IXGBEVF_RESETTING, &adapter->state);
 }
@@ -1867,6 +1904,22 @@ err_set_interrupt:
 }
 
 /**
+ * ixgbevf_clear_interrupt_scheme - Clear the current interrupt scheme settings
+ * @adapter: board private structure to clear interrupt scheme on
+ *
+ * We go through and clear interrupt specific resources and reset the structure
+ * to pre-load conditions
+ **/
+static void ixgbevf_clear_interrupt_scheme(struct ixgbevf_adapter *adapter)
+{
+	adapter->num_tx_queues = 0;
+	adapter->num_rx_queues = 0;
+
+	ixgbevf_free_q_vectors(adapter);
+	ixgbevf_reset_interrupt_capability(adapter);
+}
+
+/**
  * ixgbevf_sw_init - Initialize general software structures
  * (struct ixgbevf_adapter)
  * @adapter: board private structure to initialize
@@ -2351,6 +2404,8 @@ static int ixgbevf_open(struct net_device *netdev)
 		}
 	}
 
+	ixgbevf_negotiate_api(adapter);
+
 	/* allocate transmit descriptors */
 	err = ixgbevf_setup_all_tx_resources(adapter);
 	if (err)
@@ -2860,10 +2915,8 @@ static int ixgbevf_set_mac(struct net_device *netdev, void *p)
 static int ixgbevf_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
-	struct ixgbe_hw *hw = &adapter->hw;
 	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
 	int max_possible_frame = MAXIMUM_ETHERNET_VLAN_SIZE;
-	u32 msg[2];
 
 	if (adapter->hw.mac.type == ixgbe_mac_X540_vf)
 		max_possible_frame = IXGBE_MAX_JUMBO_FRAME_SIZE;
@@ -2877,35 +2930,91 @@ static int ixgbevf_change_mtu(struct net_device *netdev, int new_mtu)
 	/* must set new MTU before calling down or up */
 	netdev->mtu = new_mtu;
 
-	if (!netif_running(netdev)) {
-		msg[0] = IXGBE_VF_SET_LPE;
-		msg[1] = max_frame;
-		hw->mbx.ops.write_posted(hw, msg, 2);
-	}
-
 	if (netif_running(netdev))
 		ixgbevf_reinit_locked(adapter);
 
 	return 0;
 }
 
-static void ixgbevf_shutdown(struct pci_dev *pdev)
+static int ixgbevf_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+#ifdef CONFIG_PM
+	int retval = 0;
+#endif
 
 	netif_device_detach(netdev);
 
 	if (netif_running(netdev)) {
+		rtnl_lock();
 		ixgbevf_down(adapter);
 		ixgbevf_free_irq(adapter);
 		ixgbevf_free_all_tx_resources(adapter);
 		ixgbevf_free_all_rx_resources(adapter);
+		rtnl_unlock();
 	}
 
-	pci_save_state(pdev);
+	ixgbevf_clear_interrupt_scheme(adapter);
 
+#ifdef CONFIG_PM
+	retval = pci_save_state(pdev);
+	if (retval)
+		return retval;
+
+#endif
 	pci_disable_device(pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int ixgbevf_resume(struct pci_dev *pdev)
+{
+	struct ixgbevf_adapter *adapter = pci_get_drvdata(pdev);
+	struct net_device *netdev = adapter->netdev;
+	u32 err;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	/*
+	 * pci_restore_state clears dev->state_saved so call
+	 * pci_save_state to restore it.
+	 */
+	pci_save_state(pdev);
+
+	err = pci_enable_device_mem(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Cannot enable PCI device from suspend\n");
+		return err;
+	}
+	pci_set_master(pdev);
+
+	rtnl_lock();
+	err = ixgbevf_init_interrupt_scheme(adapter);
+	rtnl_unlock();
+	if (err) {
+		dev_err(&pdev->dev, "Cannot initialize interrupts\n");
+		return err;
+	}
+
+	ixgbevf_reset(adapter);
+
+	if (netif_running(netdev)) {
+		err = ixgbevf_open(netdev);
+		if (err)
+			return err;
+	}
+
+	netif_device_attach(netdev);
+
+	return err;
+}
+
+#endif /* CONFIG_PM */
+static void ixgbevf_shutdown(struct pci_dev *pdev)
+{
+	ixgbevf_suspend(pdev, PMSG_SUSPEND);
 }
 
 static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev,
@@ -2946,7 +3055,7 @@ static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev,
 	return stats;
 }
 
-static const struct net_device_ops ixgbe_netdev_ops = {
+static const struct net_device_ops ixgbevf_netdev_ops = {
 	.ndo_open		= ixgbevf_open,
 	.ndo_stop		= ixgbevf_close,
 	.ndo_start_xmit		= ixgbevf_xmit_frame,
@@ -2962,7 +3071,7 @@ static const struct net_device_ops ixgbe_netdev_ops = {
 
 static void ixgbevf_assign_netdev_ops(struct net_device *dev)
 {
-	dev->netdev_ops = &ixgbe_netdev_ops;
+	dev->netdev_ops = &ixgbevf_netdev_ops;
 	ixgbevf_set_ethtool_ops(dev);
 	dev->watchdog_timeo = 5 * HZ;
 }
@@ -3131,6 +3240,7 @@ static int __devinit ixgbevf_probe(struct pci_dev *pdev,
 	return 0;
 
 err_register:
+	ixgbevf_clear_interrupt_scheme(adapter);
 err_sw_init:
 	ixgbevf_reset_interrupt_capability(adapter);
 	iounmap(hw->hw_addr);
@@ -3168,6 +3278,7 @@ static void __devexit ixgbevf_remove(struct pci_dev *pdev)
 	if (netdev->reg_state == NETREG_REGISTERED)
 		unregister_netdev(netdev);
 
+	ixgbevf_clear_interrupt_scheme(adapter);
 	ixgbevf_reset_interrupt_capability(adapter);
 
 	iounmap(adapter->hw.hw_addr);
@@ -3256,7 +3367,7 @@ static void ixgbevf_io_resume(struct pci_dev *pdev)
 }
 
 /* PCI Error Recovery (ERS) */
-static struct pci_error_handlers ixgbevf_err_handler = {
+static const struct pci_error_handlers ixgbevf_err_handler = {
 	.error_detected = ixgbevf_io_error_detected,
 	.slot_reset = ixgbevf_io_slot_reset,
 	.resume = ixgbevf_io_resume,
@@ -3267,6 +3378,11 @@ static struct pci_driver ixgbevf_driver = {
 	.id_table = ixgbevf_pci_tbl,
 	.probe    = ixgbevf_probe,
 	.remove   = __devexit_p(ixgbevf_remove),
+#ifdef CONFIG_PM
+	/* Power Management Hooks */
+	.suspend  = ixgbevf_suspend,
+	.resume   = ixgbevf_resume,
+#endif
 	.shutdown = ixgbevf_shutdown,
 	.err_handler = &ixgbevf_err_handler
 };
diff --git a/drivers/net/ethernet/intel/ixgbevf/mbx.c b/drivers/net/ethernet/intel/ixgbevf/mbx.c
index 9c955900fe6..d5028ddf4b3 100644
--- a/drivers/net/ethernet/intel/ixgbevf/mbx.c
+++ b/drivers/net/ethernet/intel/ixgbevf/mbx.c
@@ -86,14 +86,17 @@ static s32 ixgbevf_poll_for_ack(struct ixgbe_hw *hw)
 static s32 ixgbevf_read_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size)
 {
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
-	s32 ret_val = IXGBE_ERR_MBX;
+	s32 ret_val = -IXGBE_ERR_MBX;
+
+	if (!mbx->ops.read)
+		goto out;
 
 	ret_val = ixgbevf_poll_for_msg(hw);
 
 	/* if ack received read message, otherwise we timed out */
 	if (!ret_val)
 		ret_val = mbx->ops.read(hw, msg, size);
-
+out:
 	return ret_val;
 }
 
@@ -109,7 +112,11 @@ static s32 ixgbevf_read_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size)
 static s32 ixgbevf_write_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size)
 {
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
-	s32 ret_val;
+	s32 ret_val = -IXGBE_ERR_MBX;
+
+	/* exit if either we can't write or there isn't a defined timeout */
+	if (!mbx->ops.write || !mbx->timeout)
+		goto out;
 
 	/* send msg */
 	ret_val = mbx->ops.write(hw, msg, size);
@@ -117,7 +124,7 @@ static s32 ixgbevf_write_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size)
 	/* if msg sent wait until we receive an ack */
 	if (!ret_val)
 		ret_val = ixgbevf_poll_for_ack(hw);
-
+out:
 	return ret_val;
 }
 
diff --git a/drivers/net/ethernet/intel/ixgbevf/mbx.h b/drivers/net/ethernet/intel/ixgbevf/mbx.h
index cf9131c5c11..946ce86f337 100644
--- a/drivers/net/ethernet/intel/ixgbevf/mbx.h
+++ b/drivers/net/ethernet/intel/ixgbevf/mbx.h
@@ -76,12 +76,29 @@
 /* bits 23:16 are used for exra info for certain messages */
 #define IXGBE_VT_MSGINFO_MASK     (0xFF << IXGBE_VT_MSGINFO_SHIFT)
 
+/* definitions to support mailbox API version negotiation */
+
+/*
+ * each element denotes a version of the API; existing numbers may not
+ * change; any additions must go at the end
+ */
+enum ixgbe_pfvf_api_rev {
+	ixgbe_mbox_api_10,	/* API version 1.0, linux/freebsd VF driver */
+	ixgbe_mbox_api_20,	/* API version 2.0, solaris Phase1 VF driver */
+	/* This value should always be last */
+	ixgbe_mbox_api_unknown,	/* indicates that API version is not known */
+};
+
+/* mailbox API, legacy requests */
 #define IXGBE_VF_RESET            0x01 /* VF requests reset */
 #define IXGBE_VF_SET_MAC_ADDR     0x02 /* VF requests PF to set MAC addr */
 #define IXGBE_VF_SET_MULTICAST    0x03 /* VF requests PF to set MC addr */
 #define IXGBE_VF_SET_VLAN         0x04 /* VF requests PF to set VLAN */
-#define IXGBE_VF_SET_LPE          0x05 /* VF requests PF to set VMOLR.LPE */
-#define IXGBE_VF_SET_MACVLAN      0x06 /* VF requests PF for unicast filter */
+
+/* mailbox API, version 1.0 VF requests */
+#define IXGBE_VF_SET_LPE	0x05 /* VF requests PF to set VMOLR.LPE */
+#define IXGBE_VF_SET_MACVLAN	0x06 /* VF requests PF for unicast filter */
+#define IXGBE_VF_API_NEGOTIATE	0x08 /* negotiate API version */
 
 /* length of permanent address message returned from PF */
 #define IXGBE_VF_PERMADDR_MSG_LEN 4
diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c
index ec89b86f7ca..0c7447e6fcc 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.c
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.c
@@ -79,6 +79,9 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
 	/* Call adapter stop to disable tx/rx and clear interrupts */
 	hw->mac.ops.stop_adapter(hw);
 
+	/* reset the api version */
+	hw->api_version = ixgbe_mbox_api_10;
+
 	IXGBE_WRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
 	IXGBE_WRITE_FLUSH(hw);
 
@@ -97,7 +100,7 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
 	msgbuf[0] = IXGBE_VF_RESET;
 	mbx->ops.write_posted(hw, msgbuf, 1);
 
-	msleep(10);
+	mdelay(10);
 
 	/* set our "perm_addr" based on info provided by PF */
 	/* also set up the mc_filter_type which is piggy backed
@@ -346,16 +349,32 @@ static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
 static s32 ixgbevf_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 			       bool vlan_on)
 {
+	struct ixgbe_mbx_info *mbx = &hw->mbx;
 	u32 msgbuf[2];
+	s32 err;
 
 	msgbuf[0] = IXGBE_VF_SET_VLAN;
 	msgbuf[1] = vlan;
 	/* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
 	msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
 
-	ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
+	err = mbx->ops.write_posted(hw, msgbuf, 2);
+	if (err)
+		goto mbx_err;
 
-	return 0;
+	err = mbx->ops.read_posted(hw, msgbuf, 2);
+	if (err)
+		goto mbx_err;
+
+	/* remove extra bits from the message */
+	msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
+	msgbuf[0] &= ~(0xFF << IXGBE_VT_MSGINFO_SHIFT);
+
+	if (msgbuf[0] != (IXGBE_VF_SET_VLAN | IXGBE_VT_MSGTYPE_ACK))
+		err = IXGBE_ERR_INVALID_ARGUMENT;
+
+mbx_err:
+	return err;
 }
 
 /**
@@ -389,20 +408,23 @@ static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
 				     bool *link_up,
 				     bool autoneg_wait_to_complete)
 {
+	struct ixgbe_mbx_info *mbx = &hw->mbx;
+	struct ixgbe_mac_info *mac = &hw->mac;
+	s32 ret_val = 0;
 	u32 links_reg;
+	u32 in_msg = 0;
 
-	if (!(hw->mbx.ops.check_for_rst(hw))) {
-		*link_up = false;
-		*speed = 0;
-		return -1;
-	}
+	/* If we were hit with a reset drop the link */
+	if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
+		mac->get_link_status = true;
 
-	links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
+	if (!mac->get_link_status)
+		goto out;
 
-	if (links_reg & IXGBE_LINKS_UP)
-		*link_up = true;
-	else
-		*link_up = false;
+	/* if link status is down no point in checking to see if pf is up */
+	links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
+	if (!(links_reg & IXGBE_LINKS_UP))
+		goto out;
 
 	switch (links_reg & IXGBE_LINKS_SPEED_82599) {
 	case IXGBE_LINKS_SPEED_10G_82599:
@@ -416,7 +438,79 @@ static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
 		break;
 	}
 
-	return 0;
+	/* if the read failed it could just be a mailbox collision, best wait
+	 * until we are called again and don't report an error */
+	if (mbx->ops.read(hw, &in_msg, 1))
+		goto out;
+
+	if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
+		/* msg is not CTS and is NACK we must have lost CTS status */
+		if (in_msg & IXGBE_VT_MSGTYPE_NACK)
+			ret_val = -1;
+		goto out;
+	}
+
+	/* the pf is talking, if we timed out in the past we reinit */
+	if (!mbx->timeout) {
+		ret_val = -1;
+		goto out;
+	}
+
+	/* if we passed all the tests above then the link is up and we no
+	 * longer need to check for link */
+	mac->get_link_status = false;
+
+out:
+	*link_up = !mac->get_link_status;
+	return ret_val;
+}
+
+/**
+ *  ixgbevf_rlpml_set_vf - Set the maximum receive packet length
+ *  @hw: pointer to the HW structure
+ *  @max_size: value to assign to max frame size
+ **/
+void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size)
+{
+	u32 msgbuf[2];
+
+	msgbuf[0] = IXGBE_VF_SET_LPE;
+	msgbuf[1] = max_size;
+	ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
+}
+
+/**
+ *  ixgbevf_negotiate_api_version - Negotiate supported API version
+ *  @hw: pointer to the HW structure
+ *  @api: integer containing requested API version
+ **/
+int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api)
+{
+	int err;
+	u32 msg[3];
+
+	/* Negotiate the mailbox API version */
+	msg[0] = IXGBE_VF_API_NEGOTIATE;
+	msg[1] = api;
+	msg[2] = 0;
+	err = hw->mbx.ops.write_posted(hw, msg, 3);
+
+	if (!err)
+		err = hw->mbx.ops.read_posted(hw, msg, 3);
+
+	if (!err) {
+		msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
+
+		/* Store value and return 0 on success */
+		if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
+			hw->api_version = api;
+			return 0;
+		}
+
+		err = IXGBE_ERR_INVALID_ARGUMENT;
+	}
+
+	return err;
 }
 
 static const struct ixgbe_mac_operations ixgbevf_mac_ops = {
diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.h b/drivers/net/ethernet/intel/ixgbevf/vf.h
index 25c951daee5..47f11a584d8 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.h
@@ -137,6 +137,8 @@ struct ixgbe_hw {
 
 	u8  revision_id;
 	bool adapter_stopped;
+
+	int api_version;
 };
 
 struct ixgbevf_hw_stats {
@@ -170,5 +172,7 @@ struct ixgbevf_info {
 	const struct ixgbe_mac_operations *mac_ops;
 };
 
+void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size);
+int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api);
 #endif /* __IXGBE_VF_H__ */
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index c8fef435302..3d1899ff107 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -40,6 +40,7 @@
 
 #include <linux/mlx4/cmd.h>
 #include <linux/semaphore.h>
+#include <rdma/ib_smi.h>
 
 #include <asm/io.h>
 
@@ -394,7 +395,8 @@ static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 	struct mlx4_vhcr_cmd *vhcr = priv->mfunc.vhcr;
 	int ret;
 
-	down(&priv->cmd.slave_sem);
+	mutex_lock(&priv->cmd.slave_cmd_mutex);
+
 	vhcr->in_param = cpu_to_be64(in_param);
 	vhcr->out_param = out_param ? cpu_to_be64(*out_param) : 0;
 	vhcr->in_modifier = cpu_to_be32(in_modifier);
@@ -402,6 +404,7 @@ static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 	vhcr->token = cpu_to_be16(CMD_POLL_TOKEN);
 	vhcr->status = 0;
 	vhcr->flags = !!(priv->cmd.use_events) << 6;
+
 	if (mlx4_is_master(dev)) {
 		ret = mlx4_master_process_vhcr(dev, dev->caps.function, vhcr);
 		if (!ret) {
@@ -438,7 +441,8 @@ static int mlx4_slave_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 			mlx4_err(dev, "failed execution of VHCR_POST command"
 				 "opcode 0x%x\n", op);
 	}
-	up(&priv->cmd.slave_sem);
+
+	mutex_unlock(&priv->cmd.slave_cmd_mutex);
 	return ret;
 }
 
@@ -627,6 +631,162 @@ static int mlx4_ACCESS_MEM(struct mlx4_dev *dev, u64 master_addr,
 			    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
 }
 
+static int query_pkey_block(struct mlx4_dev *dev, u8 port, u16 index, u16 *pkey,
+			       struct mlx4_cmd_mailbox *inbox,
+			       struct mlx4_cmd_mailbox *outbox)
+{
+	struct ib_smp *in_mad = (struct ib_smp *)(inbox->buf);
+	struct ib_smp *out_mad = (struct ib_smp *)(outbox->buf);
+	int err;
+	int i;
+
+	if (index & 0x1f)
+		return -EINVAL;
+
+	in_mad->attr_mod = cpu_to_be32(index / 32);
+
+	err = mlx4_cmd_box(dev, inbox->dma, outbox->dma, port, 3,
+			   MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
+			   MLX4_CMD_NATIVE);
+	if (err)
+		return err;
+
+	for (i = 0; i < 32; ++i)
+		pkey[i] = be16_to_cpu(((__be16 *) out_mad->data)[i]);
+
+	return err;
+}
+
+static int get_full_pkey_table(struct mlx4_dev *dev, u8 port, u16 *table,
+			       struct mlx4_cmd_mailbox *inbox,
+			       struct mlx4_cmd_mailbox *outbox)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < dev->caps.pkey_table_len[port]; i += 32) {
+		err = query_pkey_block(dev, port, i, table + i, inbox, outbox);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+#define PORT_CAPABILITY_LOCATION_IN_SMP 20
+#define PORT_STATE_OFFSET 32
+
+static enum ib_port_state vf_port_state(struct mlx4_dev *dev, int port, int vf)
+{
+	if (mlx4_get_slave_port_state(dev, vf, port) == SLAVE_PORT_UP)
+		return IB_PORT_ACTIVE;
+	else
+		return IB_PORT_DOWN;
+}
+
+static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
+				struct mlx4_vhcr *vhcr,
+				struct mlx4_cmd_mailbox *inbox,
+				struct mlx4_cmd_mailbox *outbox,
+				struct mlx4_cmd_info *cmd)
+{
+	struct ib_smp *smp = inbox->buf;
+	u32 index;
+	u8 port;
+	u16 *table;
+	int err;
+	int vidx, pidx;
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct ib_smp *outsmp = outbox->buf;
+	__be16 *outtab = (__be16 *)(outsmp->data);
+	__be32 slave_cap_mask;
+	__be64 slave_node_guid;
+	port = vhcr->in_modifier;
+
+	if (smp->base_version == 1 &&
+	    smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED &&
+	    smp->class_version == 1) {
+		if (smp->method	== IB_MGMT_METHOD_GET) {
+			if (smp->attr_id == IB_SMP_ATTR_PKEY_TABLE) {
+				index = be32_to_cpu(smp->attr_mod);
+				if (port < 1 || port > dev->caps.num_ports)
+					return -EINVAL;
+				table = kcalloc(dev->caps.pkey_table_len[port], sizeof *table, GFP_KERNEL);
+				if (!table)
+					return -ENOMEM;
+				/* need to get the full pkey table because the paravirtualized
+				 * pkeys may be scattered among several pkey blocks.
+				 */
+				err = get_full_pkey_table(dev, port, table, inbox, outbox);
+				if (!err) {
+					for (vidx = index * 32; vidx < (index + 1) * 32; ++vidx) {
+						pidx = priv->virt2phys_pkey[slave][port - 1][vidx];
+						outtab[vidx % 32] = cpu_to_be16(table[pidx]);
+					}
+				}
+				kfree(table);
+				return err;
+			}
+			if (smp->attr_id == IB_SMP_ATTR_PORT_INFO) {
+				/*get the slave specific caps:*/
+				/*do the command */
+				err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
+					    vhcr->in_modifier, vhcr->op_modifier,
+					    vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
+				/* modify the response for slaves */
+				if (!err && slave != mlx4_master_func_num(dev)) {
+					u8 *state = outsmp->data + PORT_STATE_OFFSET;
+
+					*state = (*state & 0xf0) | vf_port_state(dev, port, slave);
+					slave_cap_mask = priv->mfunc.master.slave_state[slave].ib_cap_mask[port];
+					memcpy(outsmp->data + PORT_CAPABILITY_LOCATION_IN_SMP, &slave_cap_mask, 4);
+				}
+				return err;
+			}
+			if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) {
+				/* compute slave's gid block */
+				smp->attr_mod = cpu_to_be32(slave / 8);
+				/* execute cmd */
+				err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
+					     vhcr->in_modifier, vhcr->op_modifier,
+					     vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
+				if (!err) {
+					/* if needed, move slave gid to index 0 */
+					if (slave % 8)
+						memcpy(outsmp->data,
+						       outsmp->data + (slave % 8) * 8, 8);
+					/* delete all other gids */
+					memset(outsmp->data + 8, 0, 56);
+				}
+				return err;
+			}
+			if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) {
+				err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
+					     vhcr->in_modifier, vhcr->op_modifier,
+					     vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
+				if (!err) {
+					slave_node_guid =  mlx4_get_slave_node_guid(dev, slave);
+					memcpy(outsmp->data + 12, &slave_node_guid, 8);
+				}
+				return err;
+			}
+		}
+	}
+	if (slave != mlx4_master_func_num(dev) &&
+	    ((smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) ||
+	     (smp->mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED &&
+	      smp->method == IB_MGMT_METHOD_SET))) {
+		mlx4_err(dev, "slave %d is trying to execute a Subnet MGMT MAD, "
+			 "class 0x%x, method 0x%x for attr 0x%x. Rejecting\n",
+			 slave, smp->method, smp->mgmt_class,
+			 be16_to_cpu(smp->attr_id));
+		return -EPERM;
+	}
+	/*default:*/
+	return mlx4_cmd_box(dev, inbox->dma, outbox->dma,
+				    vhcr->in_modifier, vhcr->op_modifier,
+				    vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
+}
+
 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave,
 		     struct mlx4_vhcr *vhcr,
 		     struct mlx4_cmd_mailbox *inbox,
@@ -950,7 +1110,7 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.out_is_imm = false,
 		.encode_slave_id = false,
 		.verify = NULL,
-		.wrapper = mlx4_GEN_QP_wrapper
+		.wrapper = mlx4_INIT2INIT_QP_wrapper
 	},
 	{
 		.opcode = MLX4_CMD_INIT2RTR_QP,
@@ -968,7 +1128,7 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.out_is_imm = false,
 		.encode_slave_id = false,
 		.verify = NULL,
-		.wrapper = mlx4_GEN_QP_wrapper
+		.wrapper = mlx4_RTR2RTS_QP_wrapper
 	},
 	{
 		.opcode = MLX4_CMD_RTS2RTS_QP,
@@ -977,7 +1137,7 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.out_is_imm = false,
 		.encode_slave_id = false,
 		.verify = NULL,
-		.wrapper = mlx4_GEN_QP_wrapper
+		.wrapper = mlx4_RTS2RTS_QP_wrapper
 	},
 	{
 		.opcode = MLX4_CMD_SQERR2RTS_QP,
@@ -986,7 +1146,7 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.out_is_imm = false,
 		.encode_slave_id = false,
 		.verify = NULL,
-		.wrapper = mlx4_GEN_QP_wrapper
+		.wrapper = mlx4_SQERR2RTS_QP_wrapper
 	},
 	{
 		.opcode = MLX4_CMD_2ERR_QP,
@@ -1013,7 +1173,7 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.out_is_imm = false,
 		.encode_slave_id = false,
 		.verify = NULL,
-		.wrapper = mlx4_GEN_QP_wrapper
+		.wrapper = mlx4_SQD2SQD_QP_wrapper
 	},
 	{
 		.opcode = MLX4_CMD_SQD2RTS_QP,
@@ -1022,7 +1182,7 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.out_is_imm = false,
 		.encode_slave_id = false,
 		.verify = NULL,
-		.wrapper = mlx4_GEN_QP_wrapper
+		.wrapper = mlx4_SQD2RTS_QP_wrapper
 	},
 	{
 		.opcode = MLX4_CMD_2RST_QP,
@@ -1061,6 +1221,24 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.wrapper = mlx4_GEN_QP_wrapper
 	},
 	{
+		.opcode = MLX4_CMD_CONF_SPECIAL_QP,
+		.has_inbox = false,
+		.has_outbox = false,
+		.out_is_imm = false,
+		.encode_slave_id = false,
+		.verify = NULL, /* XXX verify: only demux can do this */
+		.wrapper = NULL
+	},
+	{
+		.opcode = MLX4_CMD_MAD_IFC,
+		.has_inbox = true,
+		.has_outbox = true,
+		.out_is_imm = false,
+		.encode_slave_id = false,
+		.verify = NULL,
+		.wrapper = mlx4_MAD_IFC_wrapper
+	},
+	{
 		.opcode = MLX4_CMD_QUERY_IF_STAT,
 		.has_inbox = false,
 		.has_outbox = true,
@@ -1340,6 +1518,8 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
 		if (MLX4_COMM_CMD_FLR == slave_state[slave].last_cmd)
 			goto inform_slave_state;
 
+		mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN, slave);
+
 		/* write the version in the event field */
 		reply |= mlx4_comm_get_version();
 
@@ -1376,19 +1556,21 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
 			goto reset_slave;
 		slave_state[slave].vhcr_dma |= param;
 		slave_state[slave].active = true;
+		mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_INIT, slave);
 		break;
 	case MLX4_COMM_CMD_VHCR_POST:
 		if ((slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_EN) &&
 		    (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR_POST))
 			goto reset_slave;
-		down(&priv->cmd.slave_sem);
+
+		mutex_lock(&priv->cmd.slave_cmd_mutex);
 		if (mlx4_master_process_vhcr(dev, slave, NULL)) {
 			mlx4_err(dev, "Failed processing vhcr for slave:%d,"
 				 " resetting slave.\n", slave);
-			up(&priv->cmd.slave_sem);
+			mutex_unlock(&priv->cmd.slave_cmd_mutex);
 			goto reset_slave;
 		}
-		up(&priv->cmd.slave_sem);
+		mutex_unlock(&priv->cmd.slave_cmd_mutex);
 		break;
 	default:
 		mlx4_warn(dev, "Bad comm cmd:%d from slave:%d\n", cmd, slave);
@@ -1529,14 +1711,6 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
 	struct mlx4_slave_state *s_state;
 	int i, j, err, port;
 
-	priv->mfunc.vhcr = dma_alloc_coherent(&(dev->pdev->dev), PAGE_SIZE,
-					    &priv->mfunc.vhcr_dma,
-					    GFP_KERNEL);
-	if (!priv->mfunc.vhcr) {
-		mlx4_err(dev, "Couldn't allocate vhcr.\n");
-		return -ENOMEM;
-	}
-
 	if (mlx4_is_master(dev))
 		priv->mfunc.comm =
 		ioremap(pci_resource_start(dev->pdev, priv->fw.comm_bar) +
@@ -1590,6 +1764,7 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
 		INIT_WORK(&priv->mfunc.master.slave_flr_event_work,
 			  mlx4_master_handle_slave_flr);
 		spin_lock_init(&priv->mfunc.master.slave_state_lock);
+		spin_lock_init(&priv->mfunc.master.slave_eq.event_lock);
 		priv->mfunc.master.comm_wq =
 			create_singlethread_workqueue("mlx4_comm");
 		if (!priv->mfunc.master.comm_wq)
@@ -1598,7 +1773,6 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
 		if (mlx4_init_resource_tracker(dev))
 			goto err_thread;
 
-		sema_init(&priv->cmd.slave_sem, 1);
 		err = mlx4_ARM_COMM_CHANNEL(dev);
 		if (err) {
 			mlx4_err(dev, " Failed to arm comm channel eq: %x\n",
@@ -1612,8 +1786,6 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
 			mlx4_err(dev, "Couldn't sync toggles\n");
 			goto err_comm;
 		}
-
-		sema_init(&priv->cmd.slave_sem, 1);
 	}
 	return 0;
 
@@ -1643,6 +1815,7 @@ int mlx4_cmd_init(struct mlx4_dev *dev)
 	struct mlx4_priv *priv = mlx4_priv(dev);
 
 	mutex_init(&priv->cmd.hcr_mutex);
+	mutex_init(&priv->cmd.slave_cmd_mutex);
 	sema_init(&priv->cmd.poll_sem, 1);
 	priv->cmd.use_events = 0;
 	priv->cmd.toggle     = 1;
@@ -1659,14 +1832,30 @@ int mlx4_cmd_init(struct mlx4_dev *dev)
 		}
 	}
 
+	if (mlx4_is_mfunc(dev)) {
+		priv->mfunc.vhcr = dma_alloc_coherent(&(dev->pdev->dev), PAGE_SIZE,
+						      &priv->mfunc.vhcr_dma,
+						      GFP_KERNEL);
+		if (!priv->mfunc.vhcr) {
+			mlx4_err(dev, "Couldn't allocate VHCR.\n");
+			goto err_hcr;
+		}
+	}
+
 	priv->cmd.pool = pci_pool_create("mlx4_cmd", dev->pdev,
 					 MLX4_MAILBOX_SIZE,
 					 MLX4_MAILBOX_SIZE, 0);
 	if (!priv->cmd.pool)
-		goto err_hcr;
+		goto err_vhcr;
 
 	return 0;
 
+err_vhcr:
+	if (mlx4_is_mfunc(dev))
+		dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
+				  priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
+	priv->mfunc.vhcr = NULL;
+
 err_hcr:
 	if (!mlx4_is_slave(dev))
 		iounmap(priv->cmd.hcr);
@@ -1689,9 +1878,6 @@ void mlx4_multi_func_cleanup(struct mlx4_dev *dev)
 	}
 
 	iounmap(priv->mfunc.comm);
-	dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
-		     priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
-	priv->mfunc.vhcr = NULL;
 }
 
 void mlx4_cmd_cleanup(struct mlx4_dev *dev)
@@ -1702,6 +1888,10 @@ void mlx4_cmd_cleanup(struct mlx4_dev *dev)
 
 	if (!mlx4_is_slave(dev))
 		iounmap(priv->cmd.hcr);
+	if (mlx4_is_mfunc(dev))
+		dma_free_coherent(&(dev->pdev->dev), PAGE_SIZE,
+				  priv->mfunc.vhcr, priv->mfunc.vhcr_dma);
+	priv->mfunc.vhcr = NULL;
 }
 
 /*
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index f32e7030077..5aba5ecdf1e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -614,8 +614,8 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
 		/* If source MAC is equal to our own MAC and not performing
 		 * the selftest or flb disabled - drop the packet */
 		if (s_mac == priv->mac &&
-			(!(dev->features & NETIF_F_LOOPBACK) ||
-			 !priv->validate_loopback))
+		    !((dev->features & NETIF_F_LOOPBACK) ||
+		      priv->validate_loopback))
 			goto next;
 
 		/*
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 019d856b133..c10e3a6de09 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -164,7 +164,6 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 	ring->cons = 0xffffffff;
 	ring->last_nr_txbb = 1;
 	ring->poll_cnt = 0;
-	ring->blocked = 0;
 	memset(ring->tx_info, 0, ring->size * sizeof(struct mlx4_en_tx_info));
 	memset(ring->buf, 0, ring->buf_size);
 
@@ -365,14 +364,13 @@ static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
 	ring->cons += txbbs_skipped;
 	netdev_tx_completed_queue(ring->tx_queue, packets, bytes);
 
-	/* Wakeup Tx queue if this ring stopped it */
-	if (unlikely(ring->blocked)) {
-		if ((u32) (ring->prod - ring->cons) <=
-		     ring->size - HEADROOM - MAX_DESC_TXBBS) {
-			ring->blocked = 0;
-			netif_tx_wake_queue(ring->tx_queue);
-			priv->port_stats.wake_queue++;
-		}
+	/*
+	 * Wakeup Tx queue if this stopped, and at least 1 packet
+	 * was completed
+	 */
+	if (netif_tx_queue_stopped(ring->tx_queue) && txbbs_skipped > 0) {
+		netif_tx_wake_queue(ring->tx_queue);
+		priv->port_stats.wake_queue++;
 	}
 }
 
@@ -592,7 +590,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 		     ring->size - HEADROOM - MAX_DESC_TXBBS)) {
 		/* every full Tx ring stops queue */
 		netif_tx_stop_queue(ring->tx_queue);
-		ring->blocked = 1;
 		priv->port_stats.queue_stopped++;
 
 		return NETDEV_TX_BUSY;
@@ -715,10 +712,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (bounce)
 		tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
 
-	/* Run destructor before passing skb to HW */
-	if (likely(!skb_shared(skb)))
-		skb_orphan(skb);
-
 	if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) {
 		*(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn);
 		op_own |= htonl((bf_index & 0xffff) << 8);
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 99a04648fab..51c764901ad 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -164,13 +164,16 @@ static void slave_event(struct mlx4_dev *dev, u8 slave, struct mlx4_eqe *eqe)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_slave_event_eq *slave_eq = &priv->mfunc.master.slave_eq;
-	struct mlx4_eqe *s_eqe =
-		&slave_eq->event_eqe[slave_eq->prod & (SLAVE_EVENT_EQ_SIZE - 1)];
+	struct mlx4_eqe *s_eqe;
+	unsigned long flags;
 
+	spin_lock_irqsave(&slave_eq->event_lock, flags);
+	s_eqe = &slave_eq->event_eqe[slave_eq->prod & (SLAVE_EVENT_EQ_SIZE - 1)];
 	if ((!!(s_eqe->owner & 0x80)) ^
 	    (!!(slave_eq->prod & SLAVE_EVENT_EQ_SIZE))) {
 		mlx4_warn(dev, "Master failed to generate an EQE for slave: %d. "
 			  "No free EQE on slave events queue\n", slave);
+		spin_unlock_irqrestore(&slave_eq->event_lock, flags);
 		return;
 	}
 
@@ -183,6 +186,7 @@ static void slave_event(struct mlx4_dev *dev, u8 slave, struct mlx4_eqe *eqe)
 
 	queue_work(priv->mfunc.master.comm_wq,
 		   &priv->mfunc.master.slave_event_work);
+	spin_unlock_irqrestore(&slave_eq->event_lock, flags);
 }
 
 static void mlx4_slave_event(struct mlx4_dev *dev, int slave,
@@ -200,6 +204,196 @@ static void mlx4_slave_event(struct mlx4_dev *dev, int slave,
 	slave_event(dev, slave, eqe);
 }
 
+int mlx4_gen_pkey_eqe(struct mlx4_dev *dev, int slave, u8 port)
+{
+	struct mlx4_eqe eqe;
+
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_slave_state *s_slave = &priv->mfunc.master.slave_state[slave];
+
+	if (!s_slave->active)
+		return 0;
+
+	memset(&eqe, 0, sizeof eqe);
+
+	eqe.type = MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT;
+	eqe.subtype = MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE;
+	eqe.event.port_mgmt_change.port = port;
+
+	return mlx4_GEN_EQE(dev, slave, &eqe);
+}
+EXPORT_SYMBOL(mlx4_gen_pkey_eqe);
+
+int mlx4_gen_guid_change_eqe(struct mlx4_dev *dev, int slave, u8 port)
+{
+	struct mlx4_eqe eqe;
+
+	/*don't send if we don't have the that slave */
+	if (dev->num_vfs < slave)
+		return 0;
+	memset(&eqe, 0, sizeof eqe);
+
+	eqe.type = MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT;
+	eqe.subtype = MLX4_DEV_PMC_SUBTYPE_GUID_INFO;
+	eqe.event.port_mgmt_change.port = port;
+
+	return mlx4_GEN_EQE(dev, slave, &eqe);
+}
+EXPORT_SYMBOL(mlx4_gen_guid_change_eqe);
+
+int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port,
+				   u8 port_subtype_change)
+{
+	struct mlx4_eqe eqe;
+
+	/*don't send if we don't have the that slave */
+	if (dev->num_vfs < slave)
+		return 0;
+	memset(&eqe, 0, sizeof eqe);
+
+	eqe.type = MLX4_EVENT_TYPE_PORT_CHANGE;
+	eqe.subtype = port_subtype_change;
+	eqe.event.port_change.port = cpu_to_be32(port << 28);
+
+	mlx4_dbg(dev, "%s: sending: %d to slave: %d on port: %d\n", __func__,
+		 port_subtype_change, slave, port);
+	return mlx4_GEN_EQE(dev, slave, &eqe);
+}
+EXPORT_SYMBOL(mlx4_gen_port_state_change_eqe);
+
+enum slave_port_state mlx4_get_slave_port_state(struct mlx4_dev *dev, int slave, u8 port)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_slave_state *s_state = priv->mfunc.master.slave_state;
+	if (slave >= dev->num_slaves || port > MLX4_MAX_PORTS) {
+		pr_err("%s: Error: asking for slave:%d, port:%d\n",
+		       __func__, slave, port);
+		return SLAVE_PORT_DOWN;
+	}
+	return s_state[slave].port_state[port];
+}
+EXPORT_SYMBOL(mlx4_get_slave_port_state);
+
+static int mlx4_set_slave_port_state(struct mlx4_dev *dev, int slave, u8 port,
+				     enum slave_port_state state)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_slave_state *s_state = priv->mfunc.master.slave_state;
+
+	if (slave >= dev->num_slaves || port > MLX4_MAX_PORTS || port == 0) {
+		pr_err("%s: Error: asking for slave:%d, port:%d\n",
+		       __func__, slave, port);
+		return -1;
+	}
+	s_state[slave].port_state[port] = state;
+
+	return 0;
+}
+
+static void set_all_slave_state(struct mlx4_dev *dev, u8 port, int event)
+{
+	int i;
+	enum slave_port_gen_event gen_event;
+
+	for (i = 0; i < dev->num_slaves; i++)
+		set_and_calc_slave_port_state(dev, i, port, event, &gen_event);
+}
+/**************************************************************************
+	The function get as input the new event to that port,
+	and according to the prev state change the slave's port state.
+	The events are:
+		MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
+		MLX4_PORT_STATE_DEV_EVENT_PORT_UP
+		MLX4_PORT_STATE_IB_EVENT_GID_VALID
+		MLX4_PORT_STATE_IB_EVENT_GID_INVALID
+***************************************************************************/
+int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave,
+				  u8 port, int event,
+				  enum slave_port_gen_event *gen_event)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_slave_state *ctx = NULL;
+	unsigned long flags;
+	int ret = -1;
+	enum slave_port_state cur_state =
+		mlx4_get_slave_port_state(dev, slave, port);
+
+	*gen_event = SLAVE_PORT_GEN_EVENT_NONE;
+
+	if (slave >= dev->num_slaves || port > MLX4_MAX_PORTS || port == 0) {
+		pr_err("%s: Error: asking for slave:%d, port:%d\n",
+		       __func__, slave, port);
+		return ret;
+	}
+
+	ctx = &priv->mfunc.master.slave_state[slave];
+	spin_lock_irqsave(&ctx->lock, flags);
+
+	mlx4_dbg(dev, "%s: slave: %d, current state: %d new event :%d\n",
+		 __func__, slave, cur_state, event);
+
+	switch (cur_state) {
+	case SLAVE_PORT_DOWN:
+		if (MLX4_PORT_STATE_DEV_EVENT_PORT_UP == event)
+			mlx4_set_slave_port_state(dev, slave, port,
+						  SLAVE_PENDING_UP);
+		break;
+	case SLAVE_PENDING_UP:
+		if (MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN == event)
+			mlx4_set_slave_port_state(dev, slave, port,
+						  SLAVE_PORT_DOWN);
+		else if (MLX4_PORT_STATE_IB_PORT_STATE_EVENT_GID_VALID == event) {
+			mlx4_set_slave_port_state(dev, slave, port,
+						  SLAVE_PORT_UP);
+			*gen_event = SLAVE_PORT_GEN_EVENT_UP;
+		}
+		break;
+	case SLAVE_PORT_UP:
+		if (MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN == event) {
+			mlx4_set_slave_port_state(dev, slave, port,
+						  SLAVE_PORT_DOWN);
+			*gen_event = SLAVE_PORT_GEN_EVENT_DOWN;
+		} else if (MLX4_PORT_STATE_IB_EVENT_GID_INVALID ==
+				event) {
+			mlx4_set_slave_port_state(dev, slave, port,
+						  SLAVE_PENDING_UP);
+			*gen_event = SLAVE_PORT_GEN_EVENT_DOWN;
+		}
+		break;
+	default:
+		pr_err("%s: BUG!!! UNKNOWN state: "
+		       "slave:%d, port:%d\n", __func__, slave, port);
+			goto out;
+	}
+	ret = mlx4_get_slave_port_state(dev, slave, port);
+	mlx4_dbg(dev, "%s: slave: %d, current state: %d new event"
+		 " :%d gen_event: %d\n",
+		 __func__, slave, cur_state, event, *gen_event);
+
+out:
+	spin_unlock_irqrestore(&ctx->lock, flags);
+	return ret;
+}
+
+EXPORT_SYMBOL(set_and_calc_slave_port_state);
+
+int mlx4_gen_slaves_port_mgt_ev(struct mlx4_dev *dev, u8 port, int attr)
+{
+	struct mlx4_eqe eqe;
+
+	memset(&eqe, 0, sizeof eqe);
+
+	eqe.type = MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT;
+	eqe.subtype = MLX4_DEV_PMC_SUBTYPE_PORT_INFO;
+	eqe.event.port_mgmt_change.port = port;
+	eqe.event.port_mgmt_change.params.port_info.changed_attr =
+		cpu_to_be32((u32) attr);
+
+	slave_event(dev, ALL_SLAVES, &eqe);
+	return 0;
+}
+EXPORT_SYMBOL(mlx4_gen_slaves_port_mgt_ev);
+
 void mlx4_master_handle_slave_flr(struct work_struct *work)
 {
 	struct mlx4_mfunc_master_ctx *master =
@@ -251,6 +445,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 	u32 flr_slave;
 	u8 update_slave_state;
 	int i;
+	enum slave_port_gen_event gen_event;
 
 	while ((eqe = next_eqe_sw(eq))) {
 		/*
@@ -347,35 +542,49 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 		case MLX4_EVENT_TYPE_PORT_CHANGE:
 			port = be32_to_cpu(eqe->event.port_change.port) >> 28;
 			if (eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_DOWN) {
-				mlx4_dispatch_event(dev,
-						    MLX4_DEV_EVENT_PORT_DOWN,
+				mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_DOWN,
 						    port);
 				mlx4_priv(dev)->sense.do_sense_port[port] = 1;
-				if (mlx4_is_master(dev))
-					/*change the state of all slave's port
-					* to down:*/
-					for (i = 0; i < dev->num_slaves; i++) {
-						mlx4_dbg(dev, "%s: Sending "
-							 "MLX4_PORT_CHANGE_SUBTYPE_DOWN"
+				if (!mlx4_is_master(dev))
+					break;
+				for (i = 0; i < dev->num_slaves; i++) {
+					if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH) {
+						if (i == mlx4_master_func_num(dev))
+							continue;
+						mlx4_dbg(dev, "%s: Sending MLX4_PORT_CHANGE_SUBTYPE_DOWN"
 							 " to slave: %d, port:%d\n",
 							 __func__, i, port);
-						if (i == dev->caps.function)
-							continue;
 						mlx4_slave_event(dev, i, eqe);
+					} else {  /* IB port */
+						set_and_calc_slave_port_state(dev, i, port,
+									      MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
+									      &gen_event);
+						/*we can be in pending state, then do not send port_down event*/
+						if (SLAVE_PORT_GEN_EVENT_DOWN ==  gen_event) {
+							if (i == mlx4_master_func_num(dev))
+								continue;
+							mlx4_slave_event(dev, i, eqe);
+						}
 					}
+				}
 			} else {
-				mlx4_dispatch_event(dev,
-						    MLX4_DEV_EVENT_PORT_UP,
-						    port);
+				mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_UP, port);
+
 				mlx4_priv(dev)->sense.do_sense_port[port] = 0;
 
-				if (mlx4_is_master(dev)) {
+				if (!mlx4_is_master(dev))
+					break;
+				if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
 					for (i = 0; i < dev->num_slaves; i++) {
-						if (i == dev->caps.function)
+						if (i == mlx4_master_func_num(dev))
 							continue;
 						mlx4_slave_event(dev, i, eqe);
 					}
-				}
+				else /* IB port */
+					/* port-up event will be sent to a slave when the
+					 * slave's alias-guid is set. This is done in alias_GUID.c
+					 */
+					set_all_slave_state(dev, port, MLX4_DEV_EVENT_PORT_UP);
 			}
 			break;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index c6964848732..4f30b99324c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -183,7 +183,7 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 #define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET		0x24
 #define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET		0x28
 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET		0x2c
-#define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET	0X30
+#define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET	0x30
 
 #define QUERY_FUNC_CAP_FMR_FLAG			0x80
 #define QUERY_FUNC_CAP_FLAG_RDMA		0x40
@@ -194,21 +194,39 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 #define QUERY_FUNC_CAP_RDMA_PROPS_OFFSET	0x8
 #define QUERY_FUNC_CAP_ETH_PROPS_OFFSET		0xc
 
+#define QUERY_FUNC_CAP_QP0_TUNNEL		0x10
+#define QUERY_FUNC_CAP_QP0_PROXY		0x14
+#define QUERY_FUNC_CAP_QP1_TUNNEL		0x18
+#define QUERY_FUNC_CAP_QP1_PROXY		0x1c
+
 #define QUERY_FUNC_CAP_ETH_PROPS_FORCE_MAC	0x40
 #define QUERY_FUNC_CAP_ETH_PROPS_FORCE_VLAN	0x80
 
 #define QUERY_FUNC_CAP_RDMA_PROPS_FORCE_PHY_WQE_GID 0x80
 
 	if (vhcr->op_modifier == 1) {
-		field = vhcr->in_modifier;
-		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
-
 		field = 0;
 		/* ensure force vlan and force mac bits are not set */
 		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_ETH_PROPS_OFFSET);
 		/* ensure that phy_wqe_gid bit is not set */
 		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_RDMA_PROPS_OFFSET);
 
+		field = vhcr->in_modifier; /* phys-port = logical-port */
+		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
+
+		/* size is now the QP number */
+		size = dev->phys_caps.base_tunnel_sqpn + 8 * slave + field - 1;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_TUNNEL);
+
+		size += 2;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_TUNNEL);
+
+		size = dev->phys_caps.base_proxy_sqpn + 8 * slave + field - 1;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP0_PROXY);
+
+		size += 2;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_PROXY);
+
 	} else if (vhcr->op_modifier == 0) {
 		/* enable rdma and ethernet interfaces */
 		field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA);
@@ -253,99 +271,118 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 	return err;
 }
 
-int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, struct mlx4_func_cap *func_cap)
+int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
+			struct mlx4_func_cap *func_cap)
 {
 	struct mlx4_cmd_mailbox *mailbox;
 	u32			*outbox;
-	u8			field;
+	u8			field, op_modifier;
 	u32			size;
-	int			i;
 	int			err = 0;
 
+	op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
 
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 
-	err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FUNC_CAP,
+	err = mlx4_cmd_box(dev, 0, mailbox->dma, gen_or_port, op_modifier,
+			   MLX4_CMD_QUERY_FUNC_CAP,
 			   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
 	if (err)
 		goto out;
 
 	outbox = mailbox->buf;
 
-	MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
-	if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
-		mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
-		err = -EPROTONOSUPPORT;
-		goto out;
-	}
-	func_cap->flags = field;
+	if (!op_modifier) {
+		MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS_OFFSET);
+		if (!(field & (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA))) {
+			mlx4_err(dev, "The host supports neither eth nor rdma interfaces\n");
+			err = -EPROTONOSUPPORT;
+			goto out;
+		}
+		func_cap->flags = field;
+
+		MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
+		func_cap->num_ports = field;
 
-	MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
-	func_cap->num_ports = field;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
+		func_cap->pf_context_behaviour = size;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
-	func_cap->pf_context_behaviour = size;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
+		func_cap->qp_quota = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
-	func_cap->qp_quota = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
+		func_cap->srq_quota = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
-	func_cap->srq_quota = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
+		func_cap->cq_quota = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
-	func_cap->cq_quota = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
+		func_cap->max_eq = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
-	func_cap->max_eq = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
+		func_cap->reserved_eq = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
-	func_cap->reserved_eq = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
+		func_cap->mpt_quota = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
-	func_cap->mpt_quota = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
+		func_cap->mtt_quota = size & 0xFFFFFF;
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
-	func_cap->mtt_quota = size & 0xFFFFFF;
+		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
+		func_cap->mcg_quota = size & 0xFFFFFF;
+		goto out;
+	}
 
-	MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
-	func_cap->mcg_quota = size & 0xFFFFFF;
+	/* logical port query */
+	if (gen_or_port > dev->caps.num_ports) {
+		err = -EINVAL;
+		goto out;
+	}
 
-	for (i = 1; i <= func_cap->num_ports; ++i) {
-		err = mlx4_cmd_box(dev, 0, mailbox->dma, i, 1,
-				   MLX4_CMD_QUERY_FUNC_CAP,
-				   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
-		if (err)
+	if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
+		MLX4_GET(field, outbox, QUERY_FUNC_CAP_ETH_PROPS_OFFSET);
+		if (field & QUERY_FUNC_CAP_ETH_PROPS_FORCE_VLAN) {
+			mlx4_err(dev, "VLAN is enforced on this port\n");
+			err = -EPROTONOSUPPORT;
 			goto out;
+		}
 
-		if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH) {
-			MLX4_GET(field, outbox, QUERY_FUNC_CAP_ETH_PROPS_OFFSET);
-			if (field & QUERY_FUNC_CAP_ETH_PROPS_FORCE_VLAN) {
-				mlx4_err(dev, "VLAN is enforced on this port\n");
-				err = -EPROTONOSUPPORT;
-				goto out;
-			}
-
-			if (field & QUERY_FUNC_CAP_ETH_PROPS_FORCE_MAC) {
-				mlx4_err(dev, "Force mac is enabled on this port\n");
-				err = -EPROTONOSUPPORT;
-				goto out;
-			}
-		} else if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB) {
-			MLX4_GET(field, outbox, QUERY_FUNC_CAP_RDMA_PROPS_OFFSET);
-			if (field & QUERY_FUNC_CAP_RDMA_PROPS_FORCE_PHY_WQE_GID) {
-				mlx4_err(dev, "phy_wqe_gid is "
-					 "enforced on this ib port\n");
-				err = -EPROTONOSUPPORT;
-				goto out;
-			}
+		if (field & QUERY_FUNC_CAP_ETH_PROPS_FORCE_MAC) {
+			mlx4_err(dev, "Force mac is enabled on this port\n");
+			err = -EPROTONOSUPPORT;
+			goto out;
 		}
+	} else if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_IB) {
+		MLX4_GET(field, outbox, QUERY_FUNC_CAP_RDMA_PROPS_OFFSET);
+		if (field & QUERY_FUNC_CAP_RDMA_PROPS_FORCE_PHY_WQE_GID) {
+			mlx4_err(dev, "phy_wqe_gid is "
+				 "enforced on this ib port\n");
+			err = -EPROTONOSUPPORT;
+			goto out;
+		}
+	}
 
-		MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
-		func_cap->physical_port[i] = field;
+	MLX4_GET(field, outbox, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
+	func_cap->physical_port = field;
+	if (func_cap->physical_port != gen_or_port) {
+		err = -ENOSYS;
+		goto out;
 	}
 
+	MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_TUNNEL);
+	func_cap->qp0_tunnel_qpn = size & 0xFFFFFF;
+
+	MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP0_PROXY);
+	func_cap->qp0_proxy_qpn = size & 0xFFFFFF;
+
+	MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_TUNNEL);
+	func_cap->qp1_tunnel_qpn = size & 0xFFFFFF;
+
+	MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP1_PROXY);
+	func_cap->qp1_proxy_qpn = size & 0xFFFFFF;
+
 	/* All other resources are allocated by the master, but we still report
 	 * 'num' and 'reserved' capabilities as follows:
 	 * - num remains the maximum resource index
@@ -559,7 +596,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev_cap->max_pds = 1 << (field & 0x3f);
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_XRC_OFFSET);
 	dev_cap->reserved_xrcds = field >> 4;
-	MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
+	MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_XRC_OFFSET);
 	dev_cap->max_xrcds = 1 << (field & 0x1f);
 
 	MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
@@ -715,6 +752,7 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
 			       struct mlx4_cmd_mailbox *outbox,
 			       struct mlx4_cmd_info *cmd)
 {
+	u64	flags;
 	int	err = 0;
 	u8	field;
 
@@ -723,6 +761,11 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
 	if (err)
 		return err;
 
+	/* add port mng change event capability unconditionally to slaves */
+	MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
+	flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
+	MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
+
 	/* For guests, report Blueflame disabled */
 	MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
 	field &= 0x7f;
@@ -1345,6 +1388,19 @@ out:
 	return err;
 }
 
+/* for IB-type ports only in SRIOV mode. Checks that both proxy QP0
+ * and real QP0 are active, so that the paravirtualized QP0 is ready
+ * to operate */
+static int check_qp0_state(struct mlx4_dev *dev, int function, int port)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	/* irrelevant if not infiniband */
+	if (priv->mfunc.master.qp0_state[port].proxy_qp0_active &&
+	    priv->mfunc.master.qp0_state[port].qp0_active)
+		return 1;
+	return 0;
+}
+
 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
 			   struct mlx4_vhcr *vhcr,
 			   struct mlx4_cmd_mailbox *inbox,
@@ -1358,17 +1414,29 @@ int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
 	if (priv->mfunc.master.slave_state[slave].init_port_mask & (1 << port))
 		return 0;
 
-	if (dev->caps.port_mask[port] == MLX4_PORT_TYPE_IB)
-		return -ENODEV;
-
-	/* Enable port only if it was previously disabled */
-	if (!priv->mfunc.master.init_port_ref[port]) {
-		err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
-			       MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
-		if (err)
-			return err;
+	if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
+		/* Enable port only if it was previously disabled */
+		if (!priv->mfunc.master.init_port_ref[port]) {
+			err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
+				       MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
+			if (err)
+				return err;
+		}
+		priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
+	} else {
+		if (slave == mlx4_master_func_num(dev)) {
+			if (check_qp0_state(dev, slave, port) &&
+			    !priv->mfunc.master.qp0_state[port].port_active) {
+				err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_INIT_PORT,
+					       MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
+				if (err)
+					return err;
+				priv->mfunc.master.qp0_state[port].port_active = 1;
+				priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
+			}
+		} else
+			priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
 	}
-	priv->mfunc.master.slave_state[slave].init_port_mask |= (1 << port);
 	++priv->mfunc.master.init_port_ref[port];
 	return 0;
 }
@@ -1441,15 +1509,29 @@ int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
 	    (1 << port)))
 		return 0;
 
-	if (dev->caps.port_mask[port] == MLX4_PORT_TYPE_IB)
-		return -ENODEV;
-	if (priv->mfunc.master.init_port_ref[port] == 1) {
-		err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000,
-			       MLX4_CMD_NATIVE);
-		if (err)
-			return err;
+	if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) {
+		if (priv->mfunc.master.init_port_ref[port] == 1) {
+			err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
+				       1000, MLX4_CMD_NATIVE);
+			if (err)
+				return err;
+		}
+		priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
+	} else {
+		/* infiniband port */
+		if (slave == mlx4_master_func_num(dev)) {
+			if (!priv->mfunc.master.qp0_state[port].qp0_active &&
+			    priv->mfunc.master.qp0_state[port].port_active) {
+				err = mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT,
+					       1000, MLX4_CMD_NATIVE);
+				if (err)
+					return err;
+				priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
+				priv->mfunc.master.qp0_state[port].port_active = 0;
+			}
+		} else
+			priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
 	}
-	priv->mfunc.master.slave_state[slave].init_port_mask &= ~(1 << port);
 	--priv->mfunc.master.init_port_ref[port];
 	return 0;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.h b/drivers/net/ethernet/mellanox/mlx4/fw.h
index 83fcbbf1b16..85abe9c11a2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.h
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.h
@@ -134,8 +134,12 @@ struct mlx4_func_cap {
 	int	max_eq;
 	int	reserved_eq;
 	int	mcg_quota;
-	u8	physical_port[MLX4_MAX_PORTS + 1];
-	u8	port_flags[MLX4_MAX_PORTS + 1];
+	u32	qp0_tunnel_qpn;
+	u32	qp0_proxy_qpn;
+	u32	qp1_tunnel_qpn;
+	u32	qp1_proxy_qpn;
+	u8	physical_port;
+	u8	port_flags;
 };
 
 struct mlx4_adapter {
@@ -192,7 +196,8 @@ struct mlx4_set_ib_param {
 };
 
 int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap);
-int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, struct mlx4_func_cap *func_cap);
+int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
+			struct mlx4_func_cap *func_cap);
 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 				struct mlx4_vhcr *vhcr,
 				struct mlx4_cmd_mailbox *inbox,
diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.c b/drivers/net/ethernet/mellanox/mlx4/icm.c
index 88b7b3e75ab..31d02649be4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/icm.c
+++ b/drivers/net/ethernet/mellanox/mlx4/icm.c
@@ -227,9 +227,10 @@ int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev)
 			MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
 }
 
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)
 {
-	int i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
+	u32 i = (obj & (table->num_obj - 1)) /
+			(MLX4_TABLE_CHUNK_SIZE / table->obj_size);
 	int ret = 0;
 
 	mutex_lock(&table->mutex);
@@ -262,16 +263,18 @@ out:
 	return ret;
 }
 
-void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)
 {
-	int i;
+	u32 i;
+	u64 offset;
 
 	i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
 
 	mutex_lock(&table->mutex);
 
 	if (--table->icm[i]->refcount == 0) {
-		mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
+		offset = (u64) i * MLX4_TABLE_CHUNK_SIZE;
+		mlx4_UNMAP_ICM(dev, table->virt + offset,
 			       MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
 		mlx4_free_icm(dev, table->icm[i], table->coherent);
 		table->icm[i] = NULL;
@@ -280,9 +283,11 @@ void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
 	mutex_unlock(&table->mutex);
 }
 
-void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle)
+void *mlx4_table_find(struct mlx4_icm_table *table, u32 obj,
+			dma_addr_t *dma_handle)
 {
-	int idx, offset, dma_offset, i;
+	int offset, dma_offset, i;
+	u64 idx;
 	struct mlx4_icm_chunk *chunk;
 	struct mlx4_icm *icm;
 	struct page *page = NULL;
@@ -292,7 +297,7 @@ void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_han
 
 	mutex_lock(&table->mutex);
 
-	idx = (obj & (table->num_obj - 1)) * table->obj_size;
+	idx = (u64) (obj & (table->num_obj - 1)) * table->obj_size;
 	icm = table->icm[idx / MLX4_TABLE_CHUNK_SIZE];
 	dma_offset = offset = idx % MLX4_TABLE_CHUNK_SIZE;
 
@@ -326,10 +331,11 @@ out:
 }
 
 int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
-			 int start, int end)
+			 u32 start, u32 end)
 {
 	int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;
-	int i, err;
+	int err;
+	u32 i;
 
 	for (i = start; i <= end; i += inc) {
 		err = mlx4_table_get(dev, table, i);
@@ -349,22 +355,23 @@ fail:
 }
 
 void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
-			  int start, int end)
+			  u32 start, u32 end)
 {
-	int i;
+	u32 i;
 
 	for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)
 		mlx4_table_put(dev, table, i);
 }
 
 int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
-			u64 virt, int obj_size,	int nobj, int reserved,
+			u64 virt, int obj_size,	u32 nobj, int reserved,
 			int use_lowmem, int use_coherent)
 {
 	int obj_per_chunk;
 	int num_icm;
 	unsigned chunk_size;
 	int i;
+	u64 size;
 
 	obj_per_chunk = MLX4_TABLE_CHUNK_SIZE / obj_size;
 	num_icm = (nobj + obj_per_chunk - 1) / obj_per_chunk;
@@ -380,10 +387,12 @@ int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
 	table->coherent = use_coherent;
 	mutex_init(&table->mutex);
 
+	size = (u64) nobj * obj_size;
 	for (i = 0; i * MLX4_TABLE_CHUNK_SIZE < reserved * obj_size; ++i) {
 		chunk_size = MLX4_TABLE_CHUNK_SIZE;
-		if ((i + 1) * MLX4_TABLE_CHUNK_SIZE > nobj * obj_size)
-			chunk_size = PAGE_ALIGN(nobj * obj_size - i * MLX4_TABLE_CHUNK_SIZE);
+		if ((i + 1) * MLX4_TABLE_CHUNK_SIZE > size)
+			chunk_size = PAGE_ALIGN(size -
+					i * MLX4_TABLE_CHUNK_SIZE);
 
 		table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,
 					       (use_lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.h b/drivers/net/ethernet/mellanox/mlx4/icm.h
index 19e4efc0b34..dee67fa3910 100644
--- a/drivers/net/ethernet/mellanox/mlx4/icm.h
+++ b/drivers/net/ethernet/mellanox/mlx4/icm.h
@@ -71,17 +71,17 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
 				gfp_t gfp_mask, int coherent);
 void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent);
 
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
-void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj);
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj);
 int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
-			 int start, int end);
+			 u32 start, u32 end);
 void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
-			  int start, int end);
+			  u32 start, u32 end);
 int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
-			u64 virt, int obj_size,	int nobj, int reserved,
+			u64 virt, int obj_size,	u32 nobj, int reserved,
 			int use_lowmem, int use_coherent);
 void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table);
-void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_handle);
+void *mlx4_table_find(struct mlx4_icm_table *table, u32 obj, dma_addr_t *dma_handle);
 
 static inline void mlx4_icm_first(struct mlx4_icm *icm,
 				  struct mlx4_icm_iter *iter)
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 48d0e90194c..80df2ab0177 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -95,8 +95,6 @@ MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
 					 " Not in use with device managed"
 					 " flow steering");
 
-#define MLX4_VF                                        (1 << 0)
-
 #define HCA_GLOBAL_CAP_MASK            0
 #define PF_CONTEXT_BEHAVIOUR_MASK      0
 
@@ -157,9 +155,6 @@ int mlx4_check_port_params(struct mlx4_dev *dev,
 					 "on this HCA, aborting.\n");
 				return -EINVAL;
 			}
-			if (port_type[i] == MLX4_PORT_TYPE_ETH &&
-			    port_type[i + 1] == MLX4_PORT_TYPE_IB)
-				return -EINVAL;
 		}
 	}
 
@@ -302,9 +297,12 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	mlx4_dbg(dev, "Steering mode is: %s\n",
 		 mlx4_steering_mode_str(dev->caps.steering_mode));
 
-	/* Sense port always allowed on supported devices for ConnectX1 and 2 */
-	if (dev->pdev->device != 0x1003)
+	/* Sense port always allowed on supported devices for ConnectX-1 and -2 */
+	if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
 		dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
+	/* Don't do sense port on multifunction devices (for now at least) */
+	if (mlx4_is_mfunc(dev))
+		dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 
 	dev->caps.log_num_macs  = log_num_mac;
 	dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
@@ -387,6 +385,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 		dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
 		dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
 
+	dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
 	return 0;
 }
 /*The function checks if there are live vf, return the num of them*/
@@ -412,20 +411,54 @@ static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
 {
 	u32 qk = MLX4_RESERVED_QKEY_BASE;
-	if (qpn >= dev->caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
-	    qpn < dev->caps.sqp_start)
+
+	if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
+	    qpn < dev->phys_caps.base_proxy_sqpn)
 		return -EINVAL;
 
-	if (qpn >= dev->caps.base_tunnel_sqpn)
+	if (qpn >= dev->phys_caps.base_tunnel_sqpn)
 		/* tunnel qp */
-		qk += qpn - dev->caps.base_tunnel_sqpn;
+		qk += qpn - dev->phys_caps.base_tunnel_sqpn;
 	else
-		qk += qpn - dev->caps.sqp_start;
+		qk += qpn - dev->phys_caps.base_proxy_sqpn;
 	*qkey = qk;
 	return 0;
 }
 EXPORT_SYMBOL(mlx4_get_parav_qkey);
 
+void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
+{
+	struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
+
+	if (!mlx4_is_master(dev))
+		return;
+
+	priv->virt2phys_pkey[slave][port - 1][i] = val;
+}
+EXPORT_SYMBOL(mlx4_sync_pkey_table);
+
+void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
+{
+	struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
+
+	if (!mlx4_is_master(dev))
+		return;
+
+	priv->slave_node_guids[slave] = guid;
+}
+EXPORT_SYMBOL(mlx4_put_slave_node_guid);
+
+__be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
+{
+	struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
+
+	if (!mlx4_is_master(dev))
+		return 0;
+
+	return priv->slave_node_guids[slave];
+}
+EXPORT_SYMBOL(mlx4_get_slave_node_guid);
+
 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
@@ -496,9 +529,10 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
 	}
 
 	memset(&func_cap, 0, sizeof(func_cap));
-	err = mlx4_QUERY_FUNC_CAP(dev, &func_cap);
+	err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
 	if (err) {
-		mlx4_err(dev, "QUERY_FUNC_CAP command failed, aborting.\n");
+		mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d).\n",
+			  err);
 		return err;
 	}
 
@@ -526,12 +560,33 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
 		return -ENODEV;
 	}
 
+	dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+	dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+	dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+	dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+
+	if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
+	    !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy) {
+		err = -ENOMEM;
+		goto err_mem;
+	}
+
 	for (i = 1; i <= dev->caps.num_ports; ++i) {
+		err = mlx4_QUERY_FUNC_CAP(dev, (u32) i, &func_cap);
+		if (err) {
+			mlx4_err(dev, "QUERY_FUNC_CAP port command failed for"
+				 " port %d, aborting (%d).\n", i, err);
+			goto err_mem;
+		}
+		dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
+		dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
+		dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
+		dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
 		dev->caps.port_mask[i] = dev->caps.port_type[i];
 		if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
 						    &dev->caps.gid_table_len[i],
 						    &dev->caps.pkey_table_len[i]))
-			return -ENODEV;
+			goto err_mem;
 	}
 
 	if (dev->caps.uar_page_size * (dev->caps.num_uars -
@@ -541,10 +596,20 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
 			 "PCI resource 2 size of 0x%llx, aborting.\n",
 			 dev->caps.uar_page_size * dev->caps.num_uars,
 			 (unsigned long long) pci_resource_len(dev->pdev, 2));
-		return -ENODEV;
+		goto err_mem;
 	}
 
 	return 0;
+
+err_mem:
+	kfree(dev->caps.qp0_tunnel);
+	kfree(dev->caps.qp0_proxy);
+	kfree(dev->caps.qp1_tunnel);
+	kfree(dev->caps.qp1_proxy);
+	dev->caps.qp0_tunnel = dev->caps.qp0_proxy =
+		dev->caps.qp1_tunnel = dev->caps.qp1_proxy = NULL;
+
+	return err;
 }
 
 /*
@@ -1095,10 +1160,10 @@ static void mlx4_slave_exit(struct mlx4_dev *dev)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 
-	down(&priv->cmd.slave_sem);
+	mutex_lock(&priv->cmd.slave_cmd_mutex);
 	if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
 		mlx4_warn(dev, "Failed to close slave function.\n");
-	up(&priv->cmd.slave_sem);
+	mutex_unlock(&priv->cmd.slave_cmd_mutex);
 }
 
 static int map_bf_area(struct mlx4_dev *dev)
@@ -1150,7 +1215,7 @@ static int mlx4_init_slave(struct mlx4_dev *dev)
 	u32 slave_read;
 	u32 cmd_channel_ver;
 
-	down(&priv->cmd.slave_sem);
+	mutex_lock(&priv->cmd.slave_cmd_mutex);
 	priv->cmd.max_cmds = 1;
 	mlx4_warn(dev, "Sending reset\n");
 	ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
@@ -1199,12 +1264,13 @@ static int mlx4_init_slave(struct mlx4_dev *dev)
 		goto err;
 	if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
 		goto err;
-	up(&priv->cmd.slave_sem);
+
+	mutex_unlock(&priv->cmd.slave_cmd_mutex);
 	return 0;
 
 err:
 	mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
-	up(&priv->cmd.slave_sem);
+	mutex_unlock(&priv->cmd.slave_cmd_mutex);
 	return -EIO;
 }
 
@@ -1237,13 +1303,13 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 				mlx4_info(dev, "non-primary physical function, skipping.\n");
 			else
 				mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
-			goto unmap_bf;
+			return err;
 		}
 
 		err = mlx4_load_fw(dev);
 		if (err) {
 			mlx4_err(dev, "Failed to start FW, aborting.\n");
-			goto unmap_bf;
+			return err;
 		}
 
 		mlx4_cfg.log_pg_sz_m = 1;
@@ -1307,7 +1373,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 		err = mlx4_init_slave(dev);
 		if (err) {
 			mlx4_err(dev, "Failed to initialize slave\n");
-			goto unmap_bf;
+			return err;
 		}
 
 		err = mlx4_slave_cap(dev);
@@ -1327,7 +1393,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 	err = mlx4_QUERY_ADAPTER(dev, &adapter);
 	if (err) {
 		mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
-		goto err_close;
+		goto unmap_bf;
 	}
 
 	priv->eq_table.inta_pin = adapter.inta_pin;
@@ -1335,6 +1401,9 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 
 	return 0;
 
+unmap_bf:
+	unmap_bf_area(dev);
+
 err_close:
 	mlx4_close_hca(dev);
 
@@ -1347,8 +1416,6 @@ err_stop_fw:
 		mlx4_UNMAP_FA(dev);
 		mlx4_free_icm(dev, priv->fw.fw_icm, 0);
 	}
-unmap_bf:
-	unmap_bf_area(dev);
 	return err;
 }
 
@@ -1850,7 +1917,7 @@ static void mlx4_free_ownership(struct mlx4_dev *dev)
 	iounmap(owner);
 }
 
-static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
+static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 {
 	struct mlx4_priv *priv;
 	struct mlx4_dev *dev;
@@ -1873,12 +1940,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	/*
 	 * Check for BARs.
 	 */
-	if (((id == NULL) || !(id->driver_data & MLX4_VF)) &&
+	if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
 	    !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
 		dev_err(&pdev->dev, "Missing DCS, aborting."
-			"(id == 0X%p, id->driver_data: 0x%lx,"
-			" pci_resource_flags(pdev, 0):0x%lx)\n", id,
-			id ? id->driver_data : 0, pci_resource_flags(pdev, 0));
+			"(driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
+			pci_dev_data, pci_resource_flags(pdev, 0));
 		err = -ENODEV;
 		goto err_disable_pdev;
 	}
@@ -1943,7 +2009,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	dev->rev_id = pdev->revision;
 	/* Detect if this device is a virtual function */
-	if (id && id->driver_data & MLX4_VF) {
+	if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
 		/* When acting as pf, we normally skip vfs unless explicitly
 		 * requested to probe them. */
 		if (num_vfs && extended_func_num(pdev) > probe_vf) {
@@ -1971,12 +2037,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		}
 
 		if (num_vfs) {
-			mlx4_warn(dev, "Enabling sriov with:%d vfs\n", num_vfs);
+			mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", num_vfs);
 			err = pci_enable_sriov(pdev, num_vfs);
 			if (err) {
-				mlx4_err(dev, "Failed to enable sriov,"
-					 "continuing without sriov enabled"
-					 " (err = %d).\n", err);
+				mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d).\n",
+					 err);
 				err = 0;
 			} else {
 				mlx4_warn(dev, "Running in master mode\n");
@@ -1999,7 +2064,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 slave_start:
-	if (mlx4_cmd_init(dev)) {
+	err = mlx4_cmd_init(dev);
+	if (err) {
 		mlx4_err(dev, "Failed to init command interface, aborting.\n");
 		goto err_sriov;
 	}
@@ -2090,6 +2156,7 @@ slave_start:
 	mlx4_sense_init(dev);
 	mlx4_start_sense(dev);
 
+	priv->pci_dev_data = pci_dev_data;
 	pci_set_drvdata(pdev, dev);
 
 	return 0;
@@ -2159,7 +2226,7 @@ static int __devinit mlx4_init_one(struct pci_dev *pdev,
 {
 	printk_once(KERN_INFO "%s", mlx4_version);
 
-	return __mlx4_init_one(pdev, id);
+	return __mlx4_init_one(pdev, id->driver_data);
 }
 
 static void mlx4_remove_one(struct pci_dev *pdev)
@@ -2218,12 +2285,18 @@ static void mlx4_remove_one(struct pci_dev *pdev)
 		if (dev->flags & MLX4_FLAG_MSI_X)
 			pci_disable_msix(pdev);
 		if (dev->flags & MLX4_FLAG_SRIOV) {
-			mlx4_warn(dev, "Disabling sriov\n");
+			mlx4_warn(dev, "Disabling SR-IOV\n");
 			pci_disable_sriov(pdev);
 		}
 
 		if (!mlx4_is_slave(dev))
 			mlx4_free_ownership(dev);
+
+		kfree(dev->caps.qp0_tunnel);
+		kfree(dev->caps.qp0_proxy);
+		kfree(dev->caps.qp1_tunnel);
+		kfree(dev->caps.qp1_proxy);
+
 		kfree(priv);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
@@ -2233,41 +2306,46 @@ static void mlx4_remove_one(struct pci_dev *pdev)
 
 int mlx4_restart_one(struct pci_dev *pdev)
 {
+	struct mlx4_dev	 *dev  = pci_get_drvdata(pdev);
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int		  pci_dev_data;
+
+	pci_dev_data = priv->pci_dev_data;
 	mlx4_remove_one(pdev);
-	return __mlx4_init_one(pdev, NULL);
+	return __mlx4_init_one(pdev, pci_dev_data);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
 	/* MT25408 "Hermon" SDR */
-	{ PCI_VDEVICE(MELLANOX, 0x6340), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25408 "Hermon" DDR */
-	{ PCI_VDEVICE(MELLANOX, 0x634a), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25408 "Hermon" QDR */
-	{ PCI_VDEVICE(MELLANOX, 0x6354), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25408 "Hermon" DDR PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x6732), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25408 "Hermon" QDR PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x673c), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25408 "Hermon" EN 10GigE */
-	{ PCI_VDEVICE(MELLANOX, 0x6368), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25408 "Hermon" EN 10GigE PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x6750), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25458 ConnectX EN 10GBASE-T 10GigE */
-	{ PCI_VDEVICE(MELLANOX, 0x6372), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
-	{ PCI_VDEVICE(MELLANOX, 0x675a), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT26468 ConnectX EN 10GigE PCIe gen2*/
-	{ PCI_VDEVICE(MELLANOX, 0x6764), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
-	{ PCI_VDEVICE(MELLANOX, 0x6746), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT26478 ConnectX2 40GigE PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x676e), 0 },
+	{ PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
 	/* MT25400 Family [ConnectX-2 Virtual Function] */
-	{ PCI_VDEVICE(MELLANOX, 0x1002), MLX4_VF },
+	{ PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
 	/* MT27500 Family [ConnectX-3] */
 	{ PCI_VDEVICE(MELLANOX, 0x1003), 0 },
 	/* MT27500 Family [ConnectX-3 Virtual Function] */
-	{ PCI_VDEVICE(MELLANOX, 0x1004), MLX4_VF },
+	{ PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
 	{ PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
 	{ PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
 	{ PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
@@ -2296,12 +2374,12 @@ static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
 
 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
 {
-	int ret = __mlx4_init_one(pdev, NULL);
+	int ret = __mlx4_init_one(pdev, 0);
 
 	return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
 }
 
-static struct pci_error_handlers mlx4_err_handler = {
+static const struct pci_error_handlers mlx4_err_handler = {
 	.error_detected = mlx4_pci_err_detected,
 	.slot_reset     = mlx4_pci_slot_reset,
 };
diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c
index 4ec3835e1bc..e151c21baf2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mcg.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c
@@ -137,11 +137,11 @@ static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
 	return err;
 }
 
-static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num,
+static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 port,
 					      enum mlx4_steer_type steer,
 					      u32 qpn)
 {
-	struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num];
+	struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[port - 1];
 	struct mlx4_promisc_qp *pqp;
 
 	list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
@@ -182,7 +182,7 @@ static int new_steering_entry(struct mlx4_dev *dev, u8 port,
 	/* If the given qpn is also a promisc qp,
 	 * it should be inserted to duplicates list
 	 */
-	pqp = get_promisc_qp(dev, 0, steer, qpn);
+	pqp = get_promisc_qp(dev, port, steer, qpn);
 	if (pqp) {
 		dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
 		if (!dqp) {
@@ -256,7 +256,7 @@ static int existing_steering_entry(struct mlx4_dev *dev, u8 port,
 
 	s_steer = &mlx4_priv(dev)->steer[port - 1];
 
-	pqp = get_promisc_qp(dev, 0, steer, qpn);
+	pqp = get_promisc_qp(dev, port, steer, qpn);
 	if (!pqp)
 		return 0; /* nothing to do */
 
@@ -302,7 +302,7 @@ static bool check_duplicate_entry(struct mlx4_dev *dev, u8 port,
 	s_steer = &mlx4_priv(dev)->steer[port - 1];
 
 	/* if qp is not promisc, it cannot be duplicated */
-	if (!get_promisc_qp(dev, 0, steer, qpn))
+	if (!get_promisc_qp(dev, port, steer, qpn))
 		return false;
 
 	/* The qp is promisc qp so it is a duplicate on this index
@@ -352,7 +352,7 @@ static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 port,
 	members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
 	for (i = 0;  i < members_count; i++) {
 		qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
-		if (!get_promisc_qp(dev, 0, steer, qpn) && qpn != tqpn) {
+		if (!get_promisc_qp(dev, port, steer, qpn) && qpn != tqpn) {
 			/* the qp is not promisc, the entry can't be removed */
 			goto out;
 		}
@@ -398,7 +398,7 @@ static int add_promisc_qp(struct mlx4_dev *dev, u8 port,
 
 	mutex_lock(&priv->mcg_table.mutex);
 
-	if (get_promisc_qp(dev, 0, steer, qpn)) {
+	if (get_promisc_qp(dev, port, steer, qpn)) {
 		err = 0;  /* Noting to do, already exists */
 		goto out_mutex;
 	}
@@ -432,8 +432,10 @@ static int add_promisc_qp(struct mlx4_dev *dev, u8 port,
 			if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) {
 				/* Entry already exists, add to duplicates */
 				dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
-				if (!dqp)
+				if (!dqp) {
+					err = -ENOMEM;
 					goto out_mailbox;
+				}
 				dqp->qpn = qpn;
 				list_add_tail(&dqp->list, &entry->duplicates);
 				found = true;
@@ -501,7 +503,7 @@ static int remove_promisc_qp(struct mlx4_dev *dev, u8 port,
 	s_steer = &mlx4_priv(dev)->steer[port - 1];
 	mutex_lock(&priv->mcg_table.mutex);
 
-	pqp = get_promisc_qp(dev, 0, steer, qpn);
+	pqp = get_promisc_qp(dev, port, steer, qpn);
 	if (unlikely(!pqp)) {
 		mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
 		/* nothing to do */
@@ -648,13 +650,6 @@ static int find_entry(struct mlx4_dev *dev, u8 port,
 	return err;
 }
 
-struct mlx4_net_trans_rule_hw_ctrl {
-	__be32 ctrl;
-	__be32 vf_vep_port;
-	__be32 qpn;
-	__be32 reserved;
-};
-
 static void trans_rule_ctrl_to_hw(struct mlx4_net_trans_rule *ctrl,
 				  struct mlx4_net_trans_rule_hw_ctrl *hw)
 {
@@ -678,87 +673,18 @@ static void trans_rule_ctrl_to_hw(struct mlx4_net_trans_rule *ctrl,
 	hw->qpn = cpu_to_be32(ctrl->qpn);
 }
 
-struct mlx4_net_trans_rule_hw_ib {
-	u8	size;
-	u8	rsvd1;
-	__be16	id;
-	u32	rsvd2;
-	__be32	qpn;
-	__be32	qpn_mask;
-	u8	dst_gid[16];
-	u8	dst_gid_msk[16];
-} __packed;
-
-struct mlx4_net_trans_rule_hw_eth {
-	u8	size;
-	u8	rsvd;
-	__be16	id;
-	u8	rsvd1[6];
-	u8	dst_mac[6];
-	u16	rsvd2;
-	u8	dst_mac_msk[6];
-	u16	rsvd3;
-	u8	src_mac[6];
-	u16	rsvd4;
-	u8	src_mac_msk[6];
-	u8      rsvd5;
-	u8      ether_type_enable;
-	__be16  ether_type;
-	__be16  vlan_id_msk;
-	__be16  vlan_id;
-} __packed;
-
-struct mlx4_net_trans_rule_hw_tcp_udp {
-	u8	size;
-	u8	rsvd;
-	__be16	id;
-	__be16	rsvd1[3];
-	__be16	dst_port;
-	__be16	rsvd2;
-	__be16	dst_port_msk;
-	__be16	rsvd3;
-	__be16	src_port;
-	__be16	rsvd4;
-	__be16	src_port_msk;
-} __packed;
-
-struct mlx4_net_trans_rule_hw_ipv4 {
-	u8	size;
-	u8	rsvd;
-	__be16	id;
-	__be32	rsvd1;
-	__be32	dst_ip;
-	__be32	dst_ip_msk;
-	__be32	src_ip;
-	__be32	src_ip_msk;
-} __packed;
-
-struct _rule_hw {
-	union {
-		struct {
-			u8 size;
-			u8 rsvd;
-			__be16 id;
-		};
-		struct mlx4_net_trans_rule_hw_eth eth;
-		struct mlx4_net_trans_rule_hw_ib ib;
-		struct mlx4_net_trans_rule_hw_ipv4 ipv4;
-		struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp;
-	};
+const u16 __sw_id_hw[] = {
+	[MLX4_NET_TRANS_RULE_ID_ETH]     = 0xE001,
+	[MLX4_NET_TRANS_RULE_ID_IB]      = 0xE005,
+	[MLX4_NET_TRANS_RULE_ID_IPV6]    = 0xE003,
+	[MLX4_NET_TRANS_RULE_ID_IPV4]    = 0xE002,
+	[MLX4_NET_TRANS_RULE_ID_TCP]     = 0xE004,
+	[MLX4_NET_TRANS_RULE_ID_UDP]     = 0xE006
 };
 
 static int parse_trans_rule(struct mlx4_dev *dev, struct mlx4_spec_list *spec,
 			    struct _rule_hw *rule_hw)
 {
-	static const u16 __sw_id_hw[] = {
-		[MLX4_NET_TRANS_RULE_ID_ETH]     = 0xE001,
-		[MLX4_NET_TRANS_RULE_ID_IB]      = 0xE005,
-		[MLX4_NET_TRANS_RULE_ID_IPV6]    = 0xE003,
-		[MLX4_NET_TRANS_RULE_ID_IPV4]    = 0xE002,
-		[MLX4_NET_TRANS_RULE_ID_TCP]     = 0xE004,
-		[MLX4_NET_TRANS_RULE_ID_UDP]     = 0xE006
-	};
-
 	static const size_t __rule_hw_sz[] = {
 		[MLX4_NET_TRANS_RULE_ID_ETH] =
 			sizeof(struct mlx4_net_trans_rule_hw_eth),
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 59ebc033963..1cf42036d7b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -249,7 +249,7 @@ struct mlx4_bitmap {
 struct mlx4_buddy {
 	unsigned long	      **bits;
 	unsigned int	       *num_free;
-	int			max_order;
+	u32			max_order;
 	spinlock_t		lock;
 };
 
@@ -258,7 +258,7 @@ struct mlx4_icm;
 struct mlx4_icm_table {
 	u64			virt;
 	int			num_icm;
-	int			num_obj;
+	u32			num_obj;
 	int			obj_size;
 	int			lowmem;
 	int			coherent;
@@ -452,6 +452,7 @@ struct mlx4_slave_state {
 	/*initialized via the kzalloc*/
 	u8 is_slave_going_down;
 	u32 cookie;
+	enum slave_port_state port_state[MLX4_MAX_PORTS + 1];
 };
 
 struct slave_list {
@@ -472,6 +473,7 @@ struct mlx4_slave_event_eq {
 	u32 eqn;
 	u32 cons;
 	u32 prod;
+	spinlock_t event_lock;
 	struct mlx4_eqe event_eqe[SLAVE_EVENT_EQ_SIZE];
 };
 
@@ -511,9 +513,9 @@ struct mlx4_cmd {
 	struct pci_pool	       *pool;
 	void __iomem	       *hcr;
 	struct mutex		hcr_mutex;
+	struct mutex		slave_cmd_mutex;
 	struct semaphore	poll_sem;
 	struct semaphore	event_sem;
-	struct semaphore	slave_sem;
 	int			max_cmds;
 	spinlock_t		context_lock;
 	int			free_head;
@@ -690,6 +692,87 @@ struct mlx4_steer {
 	struct list_head steer_entries[MLX4_NUM_STEERS];
 };
 
+struct mlx4_net_trans_rule_hw_ctrl {
+	__be32 ctrl;
+	__be32 vf_vep_port;
+	__be32 qpn;
+	__be32 reserved;
+};
+
+struct mlx4_net_trans_rule_hw_ib {
+	u8 size;
+	u8 rsvd1;
+	__be16 id;
+	u32 rsvd2;
+	__be32 qpn;
+	__be32 qpn_mask;
+	u8 dst_gid[16];
+	u8 dst_gid_msk[16];
+} __packed;
+
+struct mlx4_net_trans_rule_hw_eth {
+	u8	size;
+	u8	rsvd;
+	__be16	id;
+	u8	rsvd1[6];
+	u8	dst_mac[6];
+	u16	rsvd2;
+	u8	dst_mac_msk[6];
+	u16	rsvd3;
+	u8	src_mac[6];
+	u16	rsvd4;
+	u8	src_mac_msk[6];
+	u8      rsvd5;
+	u8      ether_type_enable;
+	__be16  ether_type;
+	__be16  vlan_id_msk;
+	__be16  vlan_id;
+} __packed;
+
+struct mlx4_net_trans_rule_hw_tcp_udp {
+	u8	size;
+	u8	rsvd;
+	__be16	id;
+	__be16	rsvd1[3];
+	__be16	dst_port;
+	__be16	rsvd2;
+	__be16	dst_port_msk;
+	__be16	rsvd3;
+	__be16	src_port;
+	__be16	rsvd4;
+	__be16	src_port_msk;
+} __packed;
+
+struct mlx4_net_trans_rule_hw_ipv4 {
+	u8	size;
+	u8	rsvd;
+	__be16	id;
+	__be32	rsvd1;
+	__be32	dst_ip;
+	__be32	dst_ip_msk;
+	__be32	src_ip;
+	__be32	src_ip_msk;
+} __packed;
+
+struct _rule_hw {
+	union {
+		struct {
+			u8 size;
+			u8 rsvd;
+			__be16 id;
+		};
+		struct mlx4_net_trans_rule_hw_eth eth;
+		struct mlx4_net_trans_rule_hw_ib ib;
+		struct mlx4_net_trans_rule_hw_ipv4 ipv4;
+		struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp;
+	};
+};
+
+enum {
+	MLX4_PCI_DEV_IS_VF		= 1 << 0,
+	MLX4_PCI_DEV_FORCE_SENSE_PORT	= 1 << 1,
+};
+
 struct mlx4_priv {
 	struct mlx4_dev		dev;
 
@@ -697,6 +780,8 @@ struct mlx4_priv {
 	struct list_head	ctx_list;
 	spinlock_t		ctx_lock;
 
+	int			pci_dev_data;
+
 	struct list_head        pgdir_list;
 	struct mutex            pgdir_mutex;
 
@@ -731,6 +816,9 @@ struct mlx4_priv {
 	struct io_mapping	*bf_mapping;
 	int			reserved_mtts;
 	int			fs_hash_mode;
+	u8 virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
+	__be64			slave_node_guids[MLX4_MFUNC_MAX];
+
 };
 
 static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
@@ -935,16 +1023,61 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
 			     struct mlx4_cmd_mailbox *inbox,
 			     struct mlx4_cmd_mailbox *outbox,
 			     struct mlx4_cmd_info *cmd);
+int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
+			      struct mlx4_vhcr *vhcr,
+			      struct mlx4_cmd_mailbox *inbox,
+			      struct mlx4_cmd_mailbox *outbox,
+			      struct mlx4_cmd_info *cmd);
 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
 			     struct mlx4_vhcr *vhcr,
 			     struct mlx4_cmd_mailbox *inbox,
 			     struct mlx4_cmd_mailbox *outbox,
 			     struct mlx4_cmd_info *cmd);
+int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd);
+int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd);
+int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			      struct mlx4_vhcr *vhcr,
+			      struct mlx4_cmd_mailbox *inbox,
+			      struct mlx4_cmd_mailbox *outbox,
+			      struct mlx4_cmd_info *cmd);
+int mlx4_2ERR_QP_wrapper(struct mlx4_dev *dev, int slave,
+			 struct mlx4_vhcr *vhcr,
+			 struct mlx4_cmd_mailbox *inbox,
+			 struct mlx4_cmd_mailbox *outbox,
+			 struct mlx4_cmd_info *cmd);
+int mlx4_RTS2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd);
+int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd);
+int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd);
 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave,
 			 struct mlx4_vhcr *vhcr,
 			 struct mlx4_cmd_mailbox *inbox,
 			 struct mlx4_cmd_mailbox *outbox,
 			 struct mlx4_cmd_info *cmd);
+int mlx4_QUERY_QP_wrapper(struct mlx4_dev *dev, int slave,
+			  struct mlx4_vhcr *vhcr,
+			  struct mlx4_cmd_mailbox *inbox,
+			  struct mlx4_cmd_mailbox *outbox,
+			  struct mlx4_cmd_info *cmd);
 
 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 5f1ab105deb..9d27e42264e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -248,7 +248,6 @@ struct mlx4_en_tx_ring {
 	u32 doorbell_qpn;
 	void *buf;
 	u16 poll_cnt;
-	int blocked;
 	struct mlx4_en_tx_info *tx_info;
 	u8 *bounce_buf;
 	u32 last_nr_txbb;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c
index af55b7ce534..c202d3ad2a0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -37,6 +37,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
+#include <linux/vmalloc.h>
 
 #include <linux/mlx4/cmd.h>
 
@@ -120,7 +121,7 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
 	buddy->max_order = max_order;
 	spin_lock_init(&buddy->lock);
 
-	buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
+	buddy->bits = kcalloc(buddy->max_order + 1, sizeof (long *),
 			      GFP_KERNEL);
 	buddy->num_free = kcalloc((buddy->max_order + 1), sizeof *buddy->num_free,
 				  GFP_KERNEL);
@@ -129,10 +130,12 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
 
 	for (i = 0; i <= buddy->max_order; ++i) {
 		s = BITS_TO_LONGS(1 << (buddy->max_order - i));
-		buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
-		if (!buddy->bits[i])
-			goto err_out_free;
-		bitmap_zero(buddy->bits[i], 1 << (buddy->max_order - i));
+		buddy->bits[i] = kcalloc(s, sizeof (long), GFP_KERNEL | __GFP_NOWARN);
+		if (!buddy->bits[i]) {
+			buddy->bits[i] = vzalloc(s * sizeof(long));
+			if (!buddy->bits[i])
+				goto err_out_free;
+		}
 	}
 
 	set_bit(0, buddy->bits[buddy->max_order]);
@@ -142,7 +145,10 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
 
 err_out_free:
 	for (i = 0; i <= buddy->max_order; ++i)
-		kfree(buddy->bits[i]);
+		if (buddy->bits[i] && is_vmalloc_addr(buddy->bits[i]))
+			vfree(buddy->bits[i]);
+		else
+			kfree(buddy->bits[i]);
 
 err_out:
 	kfree(buddy->bits);
@@ -156,7 +162,10 @@ static void mlx4_buddy_cleanup(struct mlx4_buddy *buddy)
 	int i;
 
 	for (i = 0; i <= buddy->max_order; ++i)
-		kfree(buddy->bits[i]);
+		if (is_vmalloc_addr(buddy->bits[i]))
+			vfree(buddy->bits[i]);
+		else
+			kfree(buddy->bits[i]);
 
 	kfree(buddy->bits);
 	kfree(buddy->num_free);
@@ -668,7 +677,7 @@ int mlx4_init_mr_table(struct mlx4_dev *dev)
 		return err;
 
 	err = mlx4_buddy_init(&mr_table->mtt_buddy,
-			      ilog2(dev->caps.num_mtts /
+			      ilog2((u32)dev->caps.num_mtts /
 			      (1 << log_mtts_per_seg)));
 	if (err)
 		goto err_buddy;
@@ -678,7 +687,7 @@ int mlx4_init_mr_table(struct mlx4_dev *dev)
 			mlx4_alloc_mtt_range(dev,
 					     fls(dev->caps.reserved_mtts - 1));
 		if (priv->reserved_mtts < 0) {
-			mlx4_warn(dev, "MTT table of order %d is too small.\n",
+			mlx4_warn(dev, "MTT table of order %u is too small.\n",
 				  mr_table->mtt_buddy.max_order);
 			err = -ENOMEM;
 			goto err_reserve_mtts;
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index e36dd0f2fa7..4c51b05efa2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -732,6 +732,16 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
 		new_cap_mask = ((__be32 *) inbox->buf)[1];
 	}
 
+	/* slave may not set the IS_SM capability for the port */
+	if (slave != mlx4_master_func_num(dev) &&
+	    (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_IS_SM))
+		return -EINVAL;
+
+	/* No DEV_MGMT in multifunc mode */
+	if (mlx4_is_mfunc(dev) &&
+	    (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_DEV_MGMT_SUP))
+		return -EINVAL;
+
 	agg_cap_mask = 0;
 	slave_cap_mask =
 		priv->mfunc.master.slave_state[slave].ib_cap_mask[port];
diff --git a/drivers/net/ethernet/mellanox/mlx4/profile.c b/drivers/net/ethernet/mellanox/mlx4/profile.c
index 9ee4725363d..8e0c3cc2a1e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/profile.c
+++ b/drivers/net/ethernet/mellanox/mlx4/profile.c
@@ -76,7 +76,7 @@ u64 mlx4_make_profile(struct mlx4_dev *dev,
 		u64 size;
 		u64 start;
 		int type;
-		int num;
+		u32 num;
 		int log_num;
 	};
 
@@ -105,7 +105,7 @@ u64 mlx4_make_profile(struct mlx4_dev *dev,
 	si_meminfo(&si);
 	request->num_mtt =
 		roundup_pow_of_two(max_t(unsigned, request->num_mtt,
-					 min(1UL << 31,
+					 min(1UL << (31 - log_mtts_per_seg),
 					     si.totalram >> (log_mtts_per_seg - 1))));
 
 	profile[MLX4_RES_QP].size     = dev_cap->qpc_entry_sz;
diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index fb2b36759cb..81e2abe07bb 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -67,10 +67,18 @@ void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type)
 		complete(&qp->free);
 }
 
-static int is_qp0(struct mlx4_dev *dev, struct mlx4_qp *qp)
+/* used for INIT/CLOSE port logic */
+static int is_master_qp0(struct mlx4_dev *dev, struct mlx4_qp *qp, int *real_qp0, int *proxy_qp0)
 {
-	return qp->qpn >= dev->caps.sqp_start &&
-		qp->qpn <= dev->caps.sqp_start + 1;
+	/* this procedure is called after we already know we are on the master */
+	/* qp0 is either the proxy qp0, or the real qp0 */
+	u32 pf_proxy_offset = dev->phys_caps.base_proxy_sqpn + 8 * mlx4_master_func_num(dev);
+	*proxy_qp0 = qp->qpn >= pf_proxy_offset && qp->qpn <= pf_proxy_offset + 1;
+
+	*real_qp0 = qp->qpn >= dev->phys_caps.base_sqpn &&
+		qp->qpn <= dev->phys_caps.base_sqpn + 1;
+
+	return *real_qp0 || *proxy_qp0;
 }
 
 static int __mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
@@ -122,6 +130,8 @@ static int __mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_cmd_mailbox *mailbox;
 	int ret = 0;
+	int real_qp0 = 0;
+	int proxy_qp0 = 0;
 	u8 port;
 
 	if (cur_state >= MLX4_QP_NUM_STATE || new_state >= MLX4_QP_NUM_STATE ||
@@ -133,9 +143,12 @@ static int __mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 			MLX4_CMD_2RST_QP, MLX4_CMD_TIME_CLASS_A, native);
 		if (mlx4_is_master(dev) && cur_state != MLX4_QP_STATE_ERR &&
 		    cur_state != MLX4_QP_STATE_RST &&
-		    is_qp0(dev, qp)) {
+		    is_master_qp0(dev, qp, &real_qp0, &proxy_qp0)) {
 			port = (qp->qpn & 1) + 1;
-			priv->mfunc.master.qp0_state[port].qp0_active = 0;
+			if (proxy_qp0)
+				priv->mfunc.master.qp0_state[port].proxy_qp0_active = 0;
+			else
+				priv->mfunc.master.qp0_state[port].qp0_active = 0;
 		}
 		return ret;
 	}
@@ -162,6 +175,23 @@ static int __mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 		       new_state == MLX4_QP_STATE_RST ? 2 : 0,
 		       op[cur_state][new_state], MLX4_CMD_TIME_CLASS_C, native);
 
+	if (mlx4_is_master(dev) && is_master_qp0(dev, qp, &real_qp0, &proxy_qp0)) {
+		port = (qp->qpn & 1) + 1;
+		if (cur_state != MLX4_QP_STATE_ERR &&
+		    cur_state != MLX4_QP_STATE_RST &&
+		    new_state == MLX4_QP_STATE_ERR) {
+			if (proxy_qp0)
+				priv->mfunc.master.qp0_state[port].proxy_qp0_active = 0;
+			else
+				priv->mfunc.master.qp0_state[port].qp0_active = 0;
+		} else if (new_state == MLX4_QP_STATE_RTR) {
+			if (proxy_qp0)
+				priv->mfunc.master.qp0_state[port].proxy_qp0_active = 1;
+			else
+				priv->mfunc.master.qp0_state[port].qp0_active = 1;
+		}
+	}
+
 	mlx4_free_cmd_mailbox(dev, mailbox);
 	return ret;
 }
@@ -392,6 +422,7 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
 	struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
 	int err;
 	int reserved_from_top = 0;
+	int k;
 
 	spin_lock_init(&qp_table->lock);
 	INIT_RADIX_TREE(&dev->qp_table_tree, GFP_ATOMIC);
@@ -406,7 +437,7 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
 	 * We also reserve the MSB of the 24-bit QP number to indicate
 	 * that a QP is an XRC QP.
 	 */
-	dev->caps.sqp_start =
+	dev->phys_caps.base_sqpn =
 		ALIGN(dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW], 8);
 
 	{
@@ -437,13 +468,66 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
 
 	}
 
+       /* Reserve 8 real SQPs in both native and SRIOV modes.
+	* In addition, in SRIOV mode, reserve 8 proxy SQPs per function
+	* (for all PFs and VFs), and 8 corresponding tunnel QPs.
+	* Each proxy SQP works opposite its own tunnel QP.
+	*
+	* The QPs are arranged as follows:
+	* a. 8 real SQPs
+	* b. All the proxy SQPs (8 per function)
+	* c. All the tunnel QPs (8 per function)
+	*/
+
 	err = mlx4_bitmap_init(&qp_table->bitmap, dev->caps.num_qps,
-			       (1 << 23) - 1, dev->caps.sqp_start + 8,
+			       (1 << 23) - 1, dev->phys_caps.base_sqpn + 8 +
+			       16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev),
 			       reserved_from_top);
 	if (err)
 		return err;
 
-	return mlx4_CONF_SPECIAL_QP(dev, dev->caps.sqp_start);
+	if (mlx4_is_mfunc(dev)) {
+		/* for PPF use */
+		dev->phys_caps.base_proxy_sqpn = dev->phys_caps.base_sqpn + 8;
+		dev->phys_caps.base_tunnel_sqpn = dev->phys_caps.base_sqpn + 8 + 8 * MLX4_MFUNC_MAX;
+
+		/* In mfunc, calculate proxy and tunnel qp offsets for the PF here,
+		 * since the PF does not call mlx4_slave_caps */
+		dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+		dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+		dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+		dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
+
+		if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
+		    !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy) {
+			err = -ENOMEM;
+			goto err_mem;
+		}
+
+		for (k = 0; k < dev->caps.num_ports; k++) {
+			dev->caps.qp0_proxy[k] = dev->phys_caps.base_proxy_sqpn +
+				8 * mlx4_master_func_num(dev) + k;
+			dev->caps.qp0_tunnel[k] = dev->caps.qp0_proxy[k] + 8 * MLX4_MFUNC_MAX;
+			dev->caps.qp1_proxy[k] = dev->phys_caps.base_proxy_sqpn +
+				8 * mlx4_master_func_num(dev) + MLX4_MAX_PORTS + k;
+			dev->caps.qp1_tunnel[k] = dev->caps.qp1_proxy[k] + 8 * MLX4_MFUNC_MAX;
+		}
+	}
+
+
+	err = mlx4_CONF_SPECIAL_QP(dev, dev->phys_caps.base_sqpn);
+	if (err)
+		goto err_mem;
+	return 0;
+
+err_mem:
+	kfree(dev->caps.qp0_tunnel);
+	kfree(dev->caps.qp0_proxy);
+	kfree(dev->caps.qp1_tunnel);
+	kfree(dev->caps.qp1_proxy);
+	dev->caps.qp0_tunnel = dev->caps.qp0_proxy =
+		dev->caps.qp1_tunnel = dev->caps.qp1_proxy = NULL;
+	return err;
 }
 
 void mlx4_cleanup_qp_table(struct mlx4_dev *dev)
diff --git a/drivers/net/ethernet/mellanox/mlx4/reset.c b/drivers/net/ethernet/mellanox/mlx4/reset.c
index 11e7c1cb99b..dd1b5093d8b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/reset.c
+++ b/drivers/net/ethernet/mellanox/mlx4/reset.c
@@ -141,16 +141,16 @@ int mlx4_reset(struct mlx4_dev *dev)
 	/* Now restore the PCI headers */
 	if (pcie_cap) {
 		devctl = hca_header[(pcie_cap + PCI_EXP_DEVCTL) / 4];
-		if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_DEVCTL,
-					   devctl)) {
+		if (pcie_capability_write_word(dev->pdev, PCI_EXP_DEVCTL,
+					       devctl)) {
 			err = -ENODEV;
 			mlx4_err(dev, "Couldn't restore HCA PCI Express "
 				 "Device Control register, aborting.\n");
 			goto out;
 		}
 		linkctl = hca_header[(pcie_cap + PCI_EXP_LNKCTL) / 4];
-		if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_LNKCTL,
-					   linkctl)) {
+		if (pcie_capability_write_word(dev->pdev, PCI_EXP_LNKCTL,
+					       linkctl)) {
 			err = -ENODEV;
 			mlx4_err(dev, "Couldn't restore HCA PCI Express "
 				 "Link control register, aborting.\n");
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 94ceddd17ab..ba6506ff4ab 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -42,6 +42,7 @@
 #include <linux/mlx4/cmd.h>
 #include <linux/mlx4/qp.h>
 #include <linux/if_ether.h>
+#include <linux/etherdevice.h>
 
 #include "mlx4.h"
 #include "fw.h"
@@ -241,6 +242,15 @@ static int res_tracker_insert(struct rb_root *root, struct res_common *res)
 	return 0;
 }
 
+enum qp_transition {
+	QP_TRANS_INIT2RTR,
+	QP_TRANS_RTR2RTS,
+	QP_TRANS_RTS2RTS,
+	QP_TRANS_SQERR2RTS,
+	QP_TRANS_SQD2SQD,
+	QP_TRANS_SQD2RTS
+};
+
 /* For Debug uses */
 static const char *ResourceType(enum mlx4_resource rt)
 {
@@ -307,14 +317,41 @@ void mlx4_free_resource_tracker(struct mlx4_dev *dev,
 	}
 }
 
-static void update_ud_gid(struct mlx4_dev *dev,
-			  struct mlx4_qp_context *qp_ctx, u8 slave)
+static void update_pkey_index(struct mlx4_dev *dev, int slave,
+			      struct mlx4_cmd_mailbox *inbox)
+{
+	u8 sched = *(u8 *)(inbox->buf + 64);
+	u8 orig_index = *(u8 *)(inbox->buf + 35);
+	u8 new_index;
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int port;
+
+	port = (sched >> 6 & 1) + 1;
+
+	new_index = priv->virt2phys_pkey[slave][port - 1][orig_index];
+	*(u8 *)(inbox->buf + 35) = new_index;
+
+	mlx4_dbg(dev, "port = %d, orig pkey index = %d, "
+		 "new pkey index = %d\n", port, orig_index, new_index);
+}
+
+static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox,
+		       u8 slave)
 {
-	u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
+	struct mlx4_qp_context	*qp_ctx = inbox->buf + 8;
+	enum mlx4_qp_optpar	optpar = be32_to_cpu(*(__be32 *) inbox->buf);
+	u32			ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
 
 	if (MLX4_QP_ST_UD == ts)
 		qp_ctx->pri_path.mgid_index = 0x80 | slave;
 
+	if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_UC == ts) {
+		if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH)
+			qp_ctx->pri_path.mgid_index = slave & 0x7F;
+		if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH)
+			qp_ctx->alt_path.mgid_index = slave & 0x7F;
+	}
+
 	mlx4_dbg(dev, "slave %d, new gid index: 0x%x ",
 		slave, qp_ctx->pri_path.mgid_index);
 }
@@ -359,8 +396,6 @@ static int get_res(struct mlx4_dev *dev, int slave, u64 res_id,
 
 	r->from_state = r->state;
 	r->state = RES_ANY_BUSY;
-	mlx4_dbg(dev, "res %s id 0x%llx to busy\n",
-		 ResourceType(type), r->res_id);
 
 	if (res)
 		*((struct res_common **)res) = r;
@@ -1104,7 +1139,13 @@ static void res_end_move(struct mlx4_dev *dev, int slave,
 
 static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn)
 {
-	return mlx4_is_qp_reserved(dev, qpn);
+	return mlx4_is_qp_reserved(dev, qpn) &&
+		(mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn));
+}
+
+static int fw_reserved(struct mlx4_dev *dev, int qpn)
+{
+	return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
 }
 
 static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
@@ -1144,7 +1185,7 @@ static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		if (err)
 			return err;
 
-		if (!valid_reserved(dev, slave, qpn)) {
+		if (!fw_reserved(dev, qpn)) {
 			err = __mlx4_qp_alloc_icm(dev, qpn);
 			if (err) {
 				res_abort_move(dev, slave, RES_QP, qpn);
@@ -1497,7 +1538,7 @@ static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		if (err)
 			return err;
 
-		if (!valid_reserved(dev, slave, qpn))
+		if (!fw_reserved(dev, qpn))
 			__mlx4_qp_free_icm(dev, qpn);
 
 		res_end_move(dev, slave, RES_QP, qpn);
@@ -1937,6 +1978,19 @@ static u32 qp_get_srqn(struct mlx4_qp_context *qpc)
 	return be32_to_cpu(qpc->srqn) & 0x1ffffff;
 }
 
+static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr,
+				  struct mlx4_qp_context *context)
+{
+	u32 qpn = vhcr->in_modifier & 0xffffff;
+	u32 qkey = 0;
+
+	if (mlx4_get_parav_qkey(dev, qpn, &qkey))
+		return;
+
+	/* adjust qkey in qp context */
+	context->qkey = cpu_to_be32(qkey);
+}
+
 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
 			     struct mlx4_vhcr *vhcr,
 			     struct mlx4_cmd_mailbox *inbox,
@@ -1989,6 +2043,8 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
 			goto ex_put_scq;
 	}
 
+	adjust_proxy_tun_qkey(dev, vhcr, qpc);
+	update_pkey_index(dev, slave, inbox);
 	err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
 	if (err)
 		goto ex_put_srq;
@@ -2134,6 +2190,48 @@ static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start,
 	return err;
 }
 
+static int verify_qp_parameters(struct mlx4_dev *dev,
+				struct mlx4_cmd_mailbox *inbox,
+				enum qp_transition transition, u8 slave)
+{
+	u32			qp_type;
+	struct mlx4_qp_context	*qp_ctx;
+	enum mlx4_qp_optpar	optpar;
+
+	qp_ctx  = inbox->buf + 8;
+	qp_type	= (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff;
+	optpar	= be32_to_cpu(*(__be32 *) inbox->buf);
+
+	switch (qp_type) {
+	case MLX4_QP_ST_RC:
+	case MLX4_QP_ST_UC:
+		switch (transition) {
+		case QP_TRANS_INIT2RTR:
+		case QP_TRANS_RTR2RTS:
+		case QP_TRANS_RTS2RTS:
+		case QP_TRANS_SQD2SQD:
+		case QP_TRANS_SQD2RTS:
+			if (slave != mlx4_master_func_num(dev))
+				/* slaves have only gid index 0 */
+				if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH)
+					if (qp_ctx->pri_path.mgid_index)
+						return -EINVAL;
+				if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH)
+					if (qp_ctx->alt_path.mgid_index)
+						return -EINVAL;
+			break;
+		default:
+			break;
+		}
+
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave,
 			   struct mlx4_vhcr *vhcr,
 			   struct mlx4_cmd_mailbox *inbox,
@@ -2621,16 +2719,123 @@ out:
 	return err;
 }
 
+int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
+			      struct mlx4_vhcr *vhcr,
+			      struct mlx4_cmd_mailbox *inbox,
+			      struct mlx4_cmd_mailbox *outbox,
+			      struct mlx4_cmd_info *cmd)
+{
+	struct mlx4_qp_context *context = inbox->buf + 8;
+	adjust_proxy_tun_qkey(dev, vhcr, context);
+	update_pkey_index(dev, slave, inbox);
+	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+}
+
 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
 			     struct mlx4_vhcr *vhcr,
 			     struct mlx4_cmd_mailbox *inbox,
 			     struct mlx4_cmd_mailbox *outbox,
 			     struct mlx4_cmd_info *cmd)
 {
+	int err;
 	struct mlx4_qp_context *qpc = inbox->buf + 8;
 
-	update_ud_gid(dev, qpc, (u8)slave);
+	err = verify_qp_parameters(dev, inbox, QP_TRANS_INIT2RTR, slave);
+	if (err)
+		return err;
+
+	update_pkey_index(dev, slave, inbox);
+	update_gid(dev, inbox, (u8)slave);
+	adjust_proxy_tun_qkey(dev, vhcr, qpc);
+
+	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+}
+
+int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd)
+{
+	int err;
+	struct mlx4_qp_context *context = inbox->buf + 8;
+
+	err = verify_qp_parameters(dev, inbox, QP_TRANS_RTR2RTS, slave);
+	if (err)
+		return err;
+
+	update_pkey_index(dev, slave, inbox);
+	update_gid(dev, inbox, (u8)slave);
+	adjust_proxy_tun_qkey(dev, vhcr, context);
+	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+}
+
+int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd)
+{
+	int err;
+	struct mlx4_qp_context *context = inbox->buf + 8;
+
+	err = verify_qp_parameters(dev, inbox, QP_TRANS_RTS2RTS, slave);
+	if (err)
+		return err;
+
+	update_pkey_index(dev, slave, inbox);
+	update_gid(dev, inbox, (u8)slave);
+	adjust_proxy_tun_qkey(dev, vhcr, context);
+	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+}
+
+
+int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			      struct mlx4_vhcr *vhcr,
+			      struct mlx4_cmd_mailbox *inbox,
+			      struct mlx4_cmd_mailbox *outbox,
+			      struct mlx4_cmd_info *cmd)
+{
+	struct mlx4_qp_context *context = inbox->buf + 8;
+	adjust_proxy_tun_qkey(dev, vhcr, context);
+	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+}
+
+int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd)
+{
+	int err;
+	struct mlx4_qp_context *context = inbox->buf + 8;
+
+	err = verify_qp_parameters(dev, inbox, QP_TRANS_SQD2SQD, slave);
+	if (err)
+		return err;
 
+	adjust_proxy_tun_qkey(dev, vhcr, context);
+	update_gid(dev, inbox, (u8)slave);
+	update_pkey_index(dev, slave, inbox);
+	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+}
+
+int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
+			    struct mlx4_vhcr *vhcr,
+			    struct mlx4_cmd_mailbox *inbox,
+			    struct mlx4_cmd_mailbox *outbox,
+			    struct mlx4_cmd_info *cmd)
+{
+	int err;
+	struct mlx4_qp_context *context = inbox->buf + 8;
+
+	err = verify_qp_parameters(dev, inbox, QP_TRANS_SQD2RTS, slave);
+	if (err)
+		return err;
+
+	adjust_proxy_tun_qkey(dev, vhcr, context);
+	update_gid(dev, inbox, (u8)slave);
+	update_pkey_index(dev, slave, inbox);
 	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
 }
 
@@ -2776,18 +2981,133 @@ ex_put:
 	return err;
 }
 
+/*
+ * MAC validation for Flow Steering rules.
+ * VF can attach rules only with a mac address which is assigned to it.
+ */
+static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header,
+				   struct list_head *rlist)
+{
+	struct mac_res *res, *tmp;
+	__be64 be_mac;
+
+	/* make sure it isn't multicast or broadcast mac*/
+	if (!is_multicast_ether_addr(eth_header->eth.dst_mac) &&
+	    !is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
+		list_for_each_entry_safe(res, tmp, rlist, list) {
+			be_mac = cpu_to_be64(res->mac << 16);
+			if (!memcmp(&be_mac, eth_header->eth.dst_mac, ETH_ALEN))
+				return 0;
+		}
+		pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n",
+		       eth_header->eth.dst_mac, slave);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/*
+ * In case of missing eth header, append eth header with a MAC address
+ * assigned to the VF.
+ */
+static int add_eth_header(struct mlx4_dev *dev, int slave,
+			  struct mlx4_cmd_mailbox *inbox,
+			  struct list_head *rlist, int header_id)
+{
+	struct mac_res *res, *tmp;
+	u8 port;
+	struct mlx4_net_trans_rule_hw_ctrl *ctrl;
+	struct mlx4_net_trans_rule_hw_eth *eth_header;
+	struct mlx4_net_trans_rule_hw_ipv4 *ip_header;
+	struct mlx4_net_trans_rule_hw_tcp_udp *l4_header;
+	__be64 be_mac = 0;
+	__be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
+
+	ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
+	port = be32_to_cpu(ctrl->vf_vep_port) & 0xff;
+	eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1);
+
+	/* Clear a space in the inbox for eth header */
+	switch (header_id) {
+	case MLX4_NET_TRANS_RULE_ID_IPV4:
+		ip_header =
+			(struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1);
+		memmove(ip_header, eth_header,
+			sizeof(*ip_header) + sizeof(*l4_header));
+		break;
+	case MLX4_NET_TRANS_RULE_ID_TCP:
+	case MLX4_NET_TRANS_RULE_ID_UDP:
+		l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *)
+			    (eth_header + 1);
+		memmove(l4_header, eth_header, sizeof(*l4_header));
+		break;
+	default:
+		return -EINVAL;
+	}
+	list_for_each_entry_safe(res, tmp, rlist, list) {
+		if (port == res->port) {
+			be_mac = cpu_to_be64(res->mac << 16);
+			break;
+		}
+	}
+	if (!be_mac) {
+		pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d .\n",
+		       port);
+		return -EINVAL;
+	}
+
+	memset(eth_header, 0, sizeof(*eth_header));
+	eth_header->size = sizeof(*eth_header) >> 2;
+	eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]);
+	memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN);
+	memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN);
+
+	return 0;
+
+}
+
 int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
 					 struct mlx4_vhcr *vhcr,
 					 struct mlx4_cmd_mailbox *inbox,
 					 struct mlx4_cmd_mailbox *outbox,
 					 struct mlx4_cmd_info *cmd)
 {
+
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
+	struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC];
 	int err;
+	struct mlx4_net_trans_rule_hw_ctrl *ctrl;
+	struct _rule_hw  *rule_header;
+	int header_id;
 
 	if (dev->caps.steering_mode !=
 	    MLX4_STEERING_MODE_DEVICE_MANAGED)
 		return -EOPNOTSUPP;
 
+	ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf;
+	rule_header = (struct _rule_hw *)(ctrl + 1);
+	header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id));
+
+	switch (header_id) {
+	case MLX4_NET_TRANS_RULE_ID_ETH:
+		if (validate_eth_header_mac(slave, rule_header, rlist))
+			return -EINVAL;
+		break;
+	case MLX4_NET_TRANS_RULE_ID_IPV4:
+	case MLX4_NET_TRANS_RULE_ID_TCP:
+	case MLX4_NET_TRANS_RULE_ID_UDP:
+		pr_warn("Can't attach FS rule without L2 headers, adding L2 header.\n");
+		if (add_eth_header(dev, slave, inbox, rlist, header_id))
+			return -EINVAL;
+		vhcr->in_modifier +=
+			sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2;
+		break;
+	default:
+		pr_err("Corrupted mailbox.\n");
+		return -EINVAL;
+	}
+
 	err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
 			   vhcr->in_modifier, 0,
 			   MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
diff --git a/drivers/net/ethernet/mellanox/mlx4/sense.c b/drivers/net/ethernet/mellanox/mlx4/sense.c
index 80249829352..094773d88f8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/sense.c
+++ b/drivers/net/ethernet/mellanox/mlx4/sense.c
@@ -81,20 +81,6 @@ void mlx4_do_sense_ports(struct mlx4_dev *dev,
 	}
 
 	/*
-	 * Adjust port configuration:
-	 * If port 1 sensed nothing and port 2 is IB, set both as IB
-	 * If port 2 sensed nothing and port 1 is Eth, set both as Eth
-	 */
-	if (stype[0] == MLX4_PORT_TYPE_ETH) {
-		for (i = 1; i < dev->caps.num_ports; i++)
-			stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_ETH;
-	}
-	if (stype[dev->caps.num_ports - 1] == MLX4_PORT_TYPE_IB) {
-		for (i = 0; i < dev->caps.num_ports - 1; i++)
-			stype[i] = stype[i] ? stype[i] : MLX4_PORT_TYPE_IB;
-	}
-
-	/*
 	 * If sensed nothing, remain in current configuration.
 	 */
 	for (i = 0; i < dev->caps.num_ports; i++)
@@ -153,5 +139,5 @@ void  mlx4_sense_init(struct mlx4_dev *dev)
 	for (port = 1; port <= dev->caps.num_ports; port++)
 		sense->do_sense_port[port] = 1;
 
-	INIT_DELAYED_WORK_DEFERRABLE(&sense->sense_poll, mlx4_sense_port);
+	INIT_DEFERRABLE_WORK(&sense->sense_poll, mlx4_sense_port);
 }
diff --git a/drivers/net/ethernet/mipsnet.c b/drivers/net/ethernet/mipsnet.c
deleted file mode 100644
index db5285befe2..00000000000
--- a/drivers/net/ethernet/mipsnet.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/platform_device.h>
-#include <asm/mips-boards/simint.h>
-
-#define MIPSNET_VERSION "2007-11-17"
-
-/*
- * Net status/control block as seen by sw in the core.
- */
-struct mipsnet_regs {
-	/*
-	 * Device info for probing, reads as MIPSNET%d where %d is some
-	 * form of version.
-	 */
-	u64 devId;		/*0x00 */
-
-	/*
-	 * read only busy flag.
-	 * Set and cleared by the Net Device to indicate that an rx or a tx
-	 * is in progress.
-	 */
-	u32 busy;		/*0x08 */
-
-	/*
-	 * Set by the Net Device.
-	 * The device will set it once data has been received.
-	 * The value is the number of bytes that should be read from
-	 * rxDataBuffer.  The value will decrease till 0 until all the data
-	 * from rxDataBuffer has been read.
-	 */
-	u32 rxDataCount;	/*0x0c */
-#define MIPSNET_MAX_RXTX_DATACOUNT (1 << 16)
-
-	/*
-	 * Settable from the MIPS core, cleared by the Net Device.
-	 * The core should set the number of bytes it wants to send,
-	 * then it should write those bytes of data to txDataBuffer.
-	 * The device will clear txDataCount has been processed (not
-	 * necessarily sent).
-	 */
-	u32 txDataCount;	/*0x10 */
-
-	/*
-	 * Interrupt control
-	 *
-	 * Used to clear the interrupted generated by this dev.
-	 * Write a 1 to clear the interrupt. (except bit31).
-	 *
-	 * Bit0 is set if it was a tx-done interrupt.
-	 * Bit1 is set when new rx-data is available.
-	 *    Until this bit is cleared there will be no other RXs.
-	 *
-	 * Bit31 is used for testing, it clears after a read.
-	 *    Writing 1 to this bit will cause an interrupt to be generated.
-	 *    To clear the test interrupt, write 0 to this register.
-	 */
-	u32 interruptControl;	/*0x14 */
-#define MIPSNET_INTCTL_TXDONE     (1u << 0)
-#define MIPSNET_INTCTL_RXDONE     (1u << 1)
-#define MIPSNET_INTCTL_TESTBIT    (1u << 31)
-
-	/*
-	 * Readonly core-specific interrupt info for the device to signal
-	 * the core. The meaning of the contents of this field might change.
-	 */
-	/* XXX: the whole memIntf interrupt scheme is messy: the device
-	 * should have no control what so ever of what VPE/register set is
-	 * being used.
-	 * The MemIntf should only expose interrupt lines, and something in
-	 * the config should be responsible for the line<->core/vpe bindings.
-	 */
-	u32 interruptInfo;	/*0x18 */
-
-	/*
-	 * This is where the received data is read out.
-	 * There is more data to read until rxDataReady is 0.
-	 * Only 1 byte at this regs offset is used.
-	 */
-	u32 rxDataBuffer;	/*0x1c */
-
-	/*
-	 * This is where the data to transmit is written.
-	 * Data should be written for the amount specified in the
-	 * txDataCount register.
-	 * Only 1 byte at this regs offset is used.
-	 */
-	u32 txDataBuffer;	/*0x20 */
-};
-
-#define regaddr(dev, field) \
-  (dev->base_addr + offsetof(struct mipsnet_regs, field))
-
-static char mipsnet_string[] = "mipsnet";
-
-/*
- * Copy data from the MIPSNET rx data port
- */
-static int ioiocpy_frommipsnet(struct net_device *dev, unsigned char *kdata,
-			int len)
-{
-	for (; len > 0; len--, kdata++)
-		*kdata = inb(regaddr(dev, rxDataBuffer));
-
-	return inl(regaddr(dev, rxDataCount));
-}
-
-static inline void mipsnet_put_todevice(struct net_device *dev,
-	struct sk_buff *skb)
-{
-	int count_to_go = skb->len;
-	char *buf_ptr = skb->data;
-
-	outl(skb->len, regaddr(dev, txDataCount));
-
-	for (; count_to_go; buf_ptr++, count_to_go--)
-		outb(*buf_ptr, regaddr(dev, txDataBuffer));
-
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-
-	dev_kfree_skb(skb);
-}
-
-static int mipsnet_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	/*
-	 * Only one packet at a time. Once TXDONE interrupt is serviced, the
-	 * queue will be restarted.
-	 */
-	netif_stop_queue(dev);
-	mipsnet_put_todevice(dev, skb);
-
-	return NETDEV_TX_OK;
-}
-
-static inline ssize_t mipsnet_get_fromdev(struct net_device *dev, size_t len)
-{
-	struct sk_buff *skb;
-
-	if (!len)
-		return len;
-
-	skb = netdev_alloc_skb(dev, len + NET_IP_ALIGN);
-	if (!skb) {
-		dev->stats.rx_dropped++;
-		return -ENOMEM;
-	}
-
-	skb_reserve(skb, NET_IP_ALIGN);
-	if (ioiocpy_frommipsnet(dev, skb_put(skb, len), len))
-		return -EFAULT;
-
-	skb->protocol = eth_type_trans(skb, dev);
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
-
-	netif_rx(skb);
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += len;
-
-	return len;
-}
-
-static irqreturn_t mipsnet_interrupt(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	u32 int_flags;
-	irqreturn_t ret = IRQ_NONE;
-
-	if (irq != dev->irq)
-		goto out_badirq;
-
-	/* TESTBIT is cleared on read. */
-	int_flags = inl(regaddr(dev, interruptControl));
-	if (int_flags & MIPSNET_INTCTL_TESTBIT) {
-		/* TESTBIT takes effect after a write with 0. */
-		outl(0, regaddr(dev, interruptControl));
-		ret = IRQ_HANDLED;
-	} else if (int_flags & MIPSNET_INTCTL_TXDONE) {
-		/* Only one packet at a time, we are done. */
-		dev->stats.tx_packets++;
-		netif_wake_queue(dev);
-		outl(MIPSNET_INTCTL_TXDONE,
-		     regaddr(dev, interruptControl));
-		ret = IRQ_HANDLED;
-	} else if (int_flags & MIPSNET_INTCTL_RXDONE) {
-		mipsnet_get_fromdev(dev, inl(regaddr(dev, rxDataCount)));
-		outl(MIPSNET_INTCTL_RXDONE, regaddr(dev, interruptControl));
-		ret = IRQ_HANDLED;
-	}
-	return ret;
-
-out_badirq:
-	printk(KERN_INFO "%s: %s(): irq %d for unknown device\n",
-	       dev->name, __func__, irq);
-	return ret;
-}
-
-static int mipsnet_open(struct net_device *dev)
-{
-	int err;
-
-	err = request_irq(dev->irq, mipsnet_interrupt,
-			  IRQF_SHARED, dev->name, (void *) dev);
-	if (err) {
-		release_region(dev->base_addr, sizeof(struct mipsnet_regs));
-		return err;
-	}
-
-	netif_start_queue(dev);
-
-	/* test interrupt handler */
-	outl(MIPSNET_INTCTL_TESTBIT, regaddr(dev, interruptControl));
-
-	return 0;
-}
-
-static int mipsnet_close(struct net_device *dev)
-{
-	netif_stop_queue(dev);
-	free_irq(dev->irq, dev);
-	return 0;
-}
-
-static void mipsnet_set_mclist(struct net_device *dev)
-{
-}
-
-static const struct net_device_ops mipsnet_netdev_ops = {
-	.ndo_open		= mipsnet_open,
-	.ndo_stop		= mipsnet_close,
-	.ndo_start_xmit		= mipsnet_xmit,
-	.ndo_set_rx_mode	= mipsnet_set_mclist,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
-};
-
-static int __devinit mipsnet_probe(struct platform_device *dev)
-{
-	struct net_device *netdev;
-	int err;
-
-	netdev = alloc_etherdev(0);
-	if (!netdev) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	platform_set_drvdata(dev, netdev);
-
-	netdev->netdev_ops = &mipsnet_netdev_ops;
-
-	/*
-	 * TODO: probe for these or load them from PARAM
-	 */
-	netdev->base_addr = 0x4200;
-	netdev->irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB0 +
-		      inl(regaddr(netdev, interruptInfo));
-
-	/* Get the io region now, get irq on open() */
-	if (!request_region(netdev->base_addr, sizeof(struct mipsnet_regs),
-			    "mipsnet")) {
-		err = -EBUSY;
-		goto out_free_netdev;
-	}
-
-	/*
-	 * Lacking any better mechanism to allocate a MAC address we use a
-	 * random one ...
-	 */
-	eth_hw_addr_random(netdev);
-
-	err = register_netdev(netdev);
-	if (err) {
-		printk(KERN_ERR "MIPSNet: failed to register netdev.\n");
-		goto out_free_region;
-	}
-
-	return 0;
-
-out_free_region:
-	release_region(netdev->base_addr, sizeof(struct mipsnet_regs));
-
-out_free_netdev:
-	free_netdev(netdev);
-
-out:
-	return err;
-}
-
-static int __devexit mipsnet_device_remove(struct platform_device *device)
-{
-	struct net_device *dev = platform_get_drvdata(device);
-
-	unregister_netdev(dev);
-	release_region(dev->base_addr, sizeof(struct mipsnet_regs));
-	free_netdev(dev);
-	platform_set_drvdata(device, NULL);
-
-	return 0;
-}
-
-static struct platform_driver mipsnet_driver = {
-	.driver = {
-		.name		= mipsnet_string,
-		.owner		= THIS_MODULE,
-	},
-	.probe		= mipsnet_probe,
-	.remove		= __devexit_p(mipsnet_device_remove),
-};
-
-static int __init mipsnet_init_module(void)
-{
-	int err;
-
-	printk(KERN_INFO "MIPSNet Ethernet driver. Version: %s. "
-	       "(c)2005 MIPS Technologies, Inc.\n", MIPSNET_VERSION);
-
-	err = platform_driver_register(&mipsnet_driver);
-	if (err)
-		printk(KERN_ERR "Driver registration failed\n");
-
-	return err;
-}
-
-static void __exit mipsnet_exit_module(void)
-{
-	platform_driver_unregister(&mipsnet_driver);
-}
-
-module_init(mipsnet_init_module);
-module_exit(mipsnet_exit_module);
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index fa85cf1353f..83516e3369c 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -1078,22 +1078,16 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
 #ifdef CONFIG_MYRI10GE_DCA
 static int myri10ge_toggle_relaxed(struct pci_dev *pdev, int on)
 {
-	int ret, cap, err;
+	int ret;
 	u16 ctl;
 
-	cap = pci_pcie_cap(pdev);
-	if (!cap)
-		return 0;
-
-	err = pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
-	if (err)
-		return 0;
+	pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &ctl);
 
 	ret = (ctl & PCI_EXP_DEVCTL_RELAX_EN) >> 4;
 	if (ret != on) {
 		ctl &= ~PCI_EXP_DEVCTL_RELAX_EN;
 		ctl |= (on << 4);
-		pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
+		pcie_capability_write_word(pdev, PCI_EXP_DEVCTL, ctl);
 	}
 	return ret;
 }
@@ -3192,18 +3186,13 @@ static void myri10ge_enable_ecrc(struct myri10ge_priv *mgp)
 	struct device *dev = &mgp->pdev->dev;
 	int cap;
 	unsigned err_cap;
-	u16 val;
-	u8 ext_type;
 	int ret;
 
 	if (!myri10ge_ecrc_enable || !bridge)
 		return;
 
 	/* check that the bridge is a root port */
-	cap = pci_pcie_cap(bridge);
-	pci_read_config_word(bridge, cap + PCI_CAP_FLAGS, &val);
-	ext_type = (val & PCI_EXP_FLAGS_TYPE) >> 4;
-	if (ext_type != PCI_EXP_TYPE_ROOT_PORT) {
+	if (pci_pcie_type(bridge) != PCI_EXP_TYPE_ROOT_PORT) {
 		if (myri10ge_ecrc_enable > 1) {
 			struct pci_dev *prev_bridge, *old_bridge = bridge;
 
@@ -3218,11 +3207,8 @@ static void myri10ge_enable_ecrc(struct myri10ge_priv *mgp)
 						" to force ECRC\n");
 					return;
 				}
-				cap = pci_pcie_cap(bridge);
-				pci_read_config_word(bridge,
-						     cap + PCI_CAP_FLAGS, &val);
-				ext_type = (val & PCI_EXP_FLAGS_TYPE) >> 4;
-			} while (ext_type != PCI_EXP_TYPE_ROOT_PORT);
+			} while (pci_pcie_type(bridge) !=
+				 PCI_EXP_TYPE_ROOT_PORT);
 
 			dev_info(dev,
 				 "Forcing ECRC on non-root port %s"
@@ -3335,11 +3321,10 @@ static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
 	int overridden = 0;
 
 	if (myri10ge_force_firmware == 0) {
-		int link_width, exp_cap;
+		int link_width;
 		u16 lnk;
 
-		exp_cap = pci_pcie_cap(mgp->pdev);
-		pci_read_config_word(mgp->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
+		pcie_capability_read_word(mgp->pdev, PCI_EXP_LNKSTA, &lnk);
 		link_width = (lnk >> 4) & 0x3f;
 
 		/* Check to see if Link is less than 8 or if the
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index d958c229937..de50547c187 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -484,7 +484,7 @@ static DEFINE_PCI_DEVICE_TABLE(s2io_tbl) = {
 
 MODULE_DEVICE_TABLE(pci, s2io_tbl);
 
-static struct pci_error_handlers s2io_err_handler = {
+static const struct pci_error_handlers s2io_err_handler = {
 	.error_detected = s2io_io_error_detected,
 	.slot_reset = s2io_io_slot_reset,
 	.resume = s2io_io_resume,
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index 32d06824fe3..c2e420a84d2 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -757,7 +757,7 @@ __vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev)
 	u16 lnk;
 
 	/* Get the negotiated link width and speed from PCI config space */
-	pci_read_config_word(dev, dev->pcie_cap + PCI_EXP_LNKSTA, &lnk);
+	pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnk);
 
 	if ((lnk & PCI_EXP_LNKSTA_CLS) != 1)
 		return VXGE_HW_ERR_INVALID_PCI_INFO;
@@ -1982,7 +1982,7 @@ u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev)
 	struct pci_dev *dev = hldev->pdev;
 	u16 lnk;
 
-	pci_read_config_word(dev, dev->pcie_cap + PCI_EXP_LNKSTA, &lnk);
+	pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnk);
 	return (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4;
 }
 
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index de219044351..3e5b7509502 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -3521,7 +3521,7 @@ static void vxge_device_unregister(struct __vxge_hw_device *hldev)
 
 	strncpy(buf, dev->name, IFNAMSIZ);
 
-	flush_work_sync(&vdev->reset_task);
+	flush_work(&vdev->reset_task);
 
 	/* in 2.6 will call stop() if device is up */
 	unregister_netdev(dev);
@@ -4799,7 +4799,7 @@ static void __devexit vxge_remove(struct pci_dev *pdev)
 			     __LINE__);
 }
 
-static struct pci_error_handlers vxge_err_handler = {
+static const struct pci_error_handlers vxge_err_handler = {
 	.error_detected = vxge_io_error_detected,
 	.slot_reset = vxge_io_slot_reset,
 	.resume = vxge_io_resume,
diff --git a/drivers/net/ethernet/netx-eth.c b/drivers/net/ethernet/netx-eth.c
index 9d11ab7521b..63e7af44366 100644
--- a/drivers/net/ethernet/netx-eth.c
+++ b/drivers/net/ethernet/netx-eth.c
@@ -34,7 +34,7 @@
 #include <mach/netx-regs.h>
 #include <mach/pfifo.h>
 #include <mach/xc.h>
-#include <mach/eth.h>
+#include <linux/platform_data/eth-netx.h>
 
 /* XC Fifo Offsets */
 #define EMPTY_PTR_FIFO(xcno)    (0 + ((xcno) << 3))	/* Index of the empty pointer FIFO */
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index f45def01a98..876beceaf2d 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -3409,7 +3409,7 @@ set_speed:
 
 	pause_flags = 0;
 	/* setup pause frame */
-	if (np->duplex != 0) {
+	if (netif_running(dev) && (np->duplex != 0)) {
 		if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) {
 			adv_pause = adv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
 			lpa_pause = lpa & (LPA_PAUSE_CAP | LPA_PAUSE_ASYM);
@@ -4435,7 +4435,7 @@ static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void
 
 	regs->version = FORCEDETH_REGS_VER;
 	spin_lock_irq(&np->lock);
-	for (i = 0; i <= np->register_size/sizeof(u32); i++)
+	for (i = 0; i < np->register_size/sizeof(u32); i++)
 		rbuf[i] = readl(base + i*sizeof(u32));
 	spin_unlock_irq(&np->lock);
 }
@@ -5455,6 +5455,7 @@ static int nv_close(struct net_device *dev)
 
 	netif_stop_queue(dev);
 	spin_lock_irq(&np->lock);
+	nv_update_pause(dev, 0); /* otherwise stop_tx bricks NIC */
 	nv_stop_rxtx(dev);
 	nv_txrx_reset(dev);
 
@@ -5904,11 +5905,19 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		goto out_error;
 	}
 
+	netif_carrier_off(dev);
+
+	/* Some NICs freeze when TX pause is enabled while NIC is
+	 * down, and this stays across warm reboots. The sequence
+	 * below should be enough to recover from that state.
+	 */
+	nv_update_pause(dev, 0);
+	nv_start_tx(dev);
+	nv_stop_tx(dev);
+
 	if (id->driver_data & DEV_HAS_VLAN)
 		nv_vlan_mode(dev, dev->features);
 
-	netif_carrier_off(dev);
-
 	dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n",
 		 dev->name, np->phy_oui, np->phyaddr, dev->dev_addr);
 
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index 4069edab229..53743f7a2ca 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -346,28 +346,15 @@ static phy_interface_t lpc_phy_interface_mode(struct device *dev)
 						   "phy-mode", NULL);
 		if (mode && !strcmp(mode, "mii"))
 			return PHY_INTERFACE_MODE_MII;
-		return PHY_INTERFACE_MODE_RMII;
 	}
-
-	/* non-DT */
-#ifdef CONFIG_ARCH_LPC32XX_MII_SUPPORT
-	return PHY_INTERFACE_MODE_MII;
-#else
 	return PHY_INTERFACE_MODE_RMII;
-#endif
 }
 
 static bool use_iram_for_net(struct device *dev)
 {
 	if (dev && dev->of_node)
 		return of_property_read_bool(dev->of_node, "use-iram");
-
-	/* non-DT */
-#ifdef CONFIG_ARCH_LPC32XX_IRAM_FOR_NET
-	return true;
-#else
 	return false;
-#endif
 }
 
 /* Receive Status information word */
diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index c42bbb16cda..a688a2ddcfd 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -722,10 +722,8 @@ static int octeon_mgmt_init_phy(struct net_device *netdev)
 				   octeon_mgmt_adjust_link, 0,
 				   PHY_INTERFACE_MODE_MII);
 
-	if (IS_ERR(p->phydev)) {
-		p->phydev = NULL;
+	if (!p->phydev)
 		return -1;
-	}
 
 	phy_start_aneg(p->phydev);
 
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index feb85d56c75..b2a94d02a52 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2795,7 +2795,7 @@ static const struct dev_pm_ops pch_gbe_pm_ops = {
 };
 #endif
 
-static struct pci_error_handlers pch_gbe_err_handler = {
+static const struct pci_error_handlers pch_gbe_err_handler = {
 	.error_detected = pch_gbe_io_error_detected,
 	.slot_reset = pch_gbe_io_slot_reset,
 	.resume = pch_gbe_io_resume
diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index e559dfa06d6..6fa74d530e4 100644
--- a/drivers/net/ethernet/pasemi/pasemi_mac.c
+++ b/drivers/net/ethernet/pasemi/pasemi_mac.c
@@ -1101,9 +1101,9 @@ static int pasemi_mac_phy_init(struct net_device *dev)
 	phydev = of_phy_connect(dev, phy_dn, &pasemi_adjust_link, 0,
 				PHY_INTERFACE_MODE_SGMII);
 
-	if (IS_ERR(phydev)) {
+	if (!phydev) {
 		printk(KERN_ERR "%s: Could not attach to phy\n", dev->name);
-		return PTR_ERR(phydev);
+		return -ENODEV;
 	}
 
 	mac->phydev = phydev;
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 342b3a79bd0..df450616ab3 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -1378,11 +1378,15 @@ static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
 	struct pci_dev *root = pdev->bus->self;
 	u32 aer_pos;
 
+	/* root bus? */
+	if (!root)
+		return;
+
 	if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
 		adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
 		return;
 
-	if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
+	if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
 		return;
 
 	aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
@@ -3336,7 +3340,7 @@ netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
 { }
 #endif
 
-static struct pci_error_handlers netxen_err_handler = {
+static const struct pci_error_handlers netxen_err_handler = {
 	.error_detected = netxen_io_error_detected,
 	.slot_reset = netxen_io_slot_reset,
 	.resume = netxen_io_resume,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index b8ead696141..2a179d08720 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -15,7 +15,7 @@ qlcnic_poll_rsp(struct qlcnic_adapter *adapter)
 
 	do {
 		/* give atleast 1ms for firmware to respond */
-		msleep(1);
+		mdelay(1);
 
 		if (++timeout > QLCNIC_OS_CRB_RETRY_COUNT)
 			return QLCNIC_CDRP_RSP_TIMEOUT;
@@ -601,7 +601,7 @@ void qlcnic_fw_destroy_ctx(struct qlcnic_adapter *adapter)
 		qlcnic_fw_cmd_destroy_tx_ctx(adapter);
 
 		/* Allow dma queues to drain after context reset */
-		msleep(20);
+		mdelay(20);
 	}
 }
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 212c1219327..473ce134ca6 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -4522,7 +4522,7 @@ static void
 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
 { }
 #endif
-static struct pci_error_handlers qlcnic_err_handler = {
+static const struct pci_error_handlers qlcnic_err_handler = {
 	.error_detected = qlcnic_io_error_detected,
 	.slot_reset = qlcnic_io_slot_reset,
 	.resume = qlcnic_io_resume,
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index b53a3b60b64..b262d615681 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -4847,7 +4847,7 @@ static void qlge_io_resume(struct pci_dev *pdev)
 	netif_device_attach(ndev);
 }
 
-static struct pci_error_handlers qlge_err_handler = {
+static const struct pci_error_handlers qlge_err_handler = {
 	.error_detected = qlge_io_error_detected,
 	.slot_reset = qlge_io_slot_reset,
 	.resume = qlge_io_resume,
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index b47d5b35024..e7ff886e804 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -77,7 +77,7 @@
 static const int multicast_filter_limit = 32;
 
 #define MAX_READ_REQUEST_SHIFT	12
-#define TX_DMA_BURST	6	/* Maximum PCI burst, '6' is 1024 */
+#define TX_DMA_BURST	7	/* Maximum PCI burst, '7' is unlimited */
 #define SafeMtu		0x1c20	/* ... actually life sucks beyond ~7k */
 #define InterFrameGap	0x03	/* 3 means InterFrameGap = the shortest one */
 
@@ -287,6 +287,8 @@ static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8167), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8168), 0, 0, RTL_CFG_1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8169), 0, 0, RTL_CFG_0 },
+	{ PCI_VENDOR_ID_DLINK,			0x4300,
+		PCI_VENDOR_ID_DLINK, 0x4b10,		 0, 0, RTL_CFG_1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_DLINK,	0x4300), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_DLINK,	0x4302), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AT,		0xc107), 0, 0, RTL_CFG_0 },
@@ -833,15 +835,8 @@ static void rtl_unlock_work(struct rtl8169_private *tp)
 
 static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
 {
-	int cap = pci_pcie_cap(pdev);
-
-	if (cap) {
-		u16 ctl;
-
-		pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
-		ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
-		pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
-	}
+	pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
+					   PCI_EXP_DEVCTL_READRQ, force);
 }
 
 struct rtl_cond {
@@ -4739,28 +4734,14 @@ static void rtl_ephy_init(struct rtl8169_private *tp, const struct ephy_info *e,
 
 static void rtl_disable_clock_request(struct pci_dev *pdev)
 {
-	int cap = pci_pcie_cap(pdev);
-
-	if (cap) {
-		u16 ctl;
-
-		pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
-		ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
-		pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
-	}
+	pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
+				   PCI_EXP_LNKCTL_CLKREQ_EN);
 }
 
 static void rtl_enable_clock_request(struct pci_dev *pdev)
 {
-	int cap = pci_pcie_cap(pdev);
-
-	if (cap) {
-		u16 ctl;
-
-		pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
-		ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
-		pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
-	}
+	pcie_capability_set_word(pdev, PCI_EXP_LNKCTL,
+				 PCI_EXP_LNKCTL_CLKREQ_EN);
 }
 
 #define R8168_CPCMD_QUIRK_MASK (\
@@ -5405,14 +5386,9 @@ static void rtl_hw_start_8101(struct net_device *dev)
 		tp->event_slow &= ~RxFIFOOver;
 
 	if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
-	    tp->mac_version == RTL_GIGA_MAC_VER_16) {
-		int cap = pci_pcie_cap(pdev);
-
-		if (cap) {
-			pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
-					      PCI_EXP_DEVCTL_NOSNOOP_EN);
-		}
-	}
+	    tp->mac_version == RTL_GIGA_MAC_VER_16)
+		pcie_capability_set_word(pdev, PCI_EXP_DEVCTL,
+					 PCI_EXP_DEVCTL_NOSNOOP_EN);
 
 	RTL_W8(Cfg9346, Cfg9346_Unlock);
 
diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
index 46df3a04030..24c2305d794 100644
--- a/drivers/net/ethernet/renesas/Kconfig
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -8,7 +8,7 @@ config SH_ETH
 		(CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || \
 		 CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7619 || \
 		 CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7734 || \
-		 CPU_SUBTYPE_SH7757 || ARCH_R8A7740)
+		 CPU_SUBTYPE_SH7757 || ARCH_R8A7740 || ARCH_R8A7779)
 	select CRC32
 	select NET_CORE
 	select MII
@@ -18,4 +18,4 @@ config SH_ETH
 	  Renesas SuperH Ethernet device driver.
 	  This driver supporting CPUs are:
 		- SH7619, SH7710, SH7712, SH7724, SH7734, SH7763, SH7757,
-		  and R8A7740.
+		  R8A7740 and R8A7779.
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index af0b867a6cf..bad8f2eec9b 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -78,7 +78,7 @@ static void sh_eth_select_mii(struct net_device *ndev)
 #endif
 
 /* There is CPU dependent code */
-#if defined(CONFIG_CPU_SUBTYPE_SH7724)
+#if defined(CONFIG_CPU_SUBTYPE_SH7724) || defined(CONFIG_ARCH_R8A7779)
 #define SH_ETH_RESET_DEFAULT	1
 static void sh_eth_set_duplex(struct net_device *ndev)
 {
@@ -93,13 +93,18 @@ static void sh_eth_set_duplex(struct net_device *ndev)
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
+	unsigned int bits = ECMR_RTM;
+
+#if defined(CONFIG_ARCH_R8A7779)
+	bits |= ECMR_ELB;
+#endif
 
 	switch (mdp->speed) {
 	case 10: /* 10BASE */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_RTM, ECMR);
+		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~bits, ECMR);
 		break;
 	case 100:/* 100BASE */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_RTM, ECMR);
+		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | bits, ECMR);
 		break;
 	default:
 		break;
diff --git a/drivers/net/ethernet/seeq/ether3.c b/drivers/net/ethernet/seeq/ether3.c
index df808ac8cb6..6a40dd03a32 100644
--- a/drivers/net/ethernet/seeq/ether3.c
+++ b/drivers/net/ethernet/seeq/ether3.c
@@ -99,13 +99,13 @@ typedef enum {
  * The SEEQ8005 doesn't like us writing to its registers
  * too quickly.
  */
-static inline void ether3_outb(int v, const void __iomem *r)
+static inline void ether3_outb(int v, void __iomem *r)
 {
 	writeb(v, r);
 	udelay(1);
 }
 
-static inline void ether3_outw(int v, const void __iomem *r)
+static inline void ether3_outw(int v, void __iomem *r)
 {
 	writew(v, r);
 	udelay(1);
diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c
index bb8c8222122..4d15bf413bd 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.c
+++ b/drivers/net/ethernet/seeq/sgiseeq.c
@@ -751,6 +751,7 @@ static int __devinit sgiseeq_probe(struct platform_device *pdev)
 	sp->srings = sr;
 	sp->rx_desc = sp->srings->rxvector;
 	sp->tx_desc = sp->srings->txvector;
+	spin_lock_init(&sp->tx_lock);
 
 	/* A couple calculations now, saves many cycles later. */
 	setup_rx_ring(dev, sp->rx_desc, SEEQ_RX_BUFFERS);
diff --git a/drivers/net/ethernet/sfc/Kconfig b/drivers/net/ethernet/sfc/Kconfig
index fb3cbc27063..25906c1d1b1 100644
--- a/drivers/net/ethernet/sfc/Kconfig
+++ b/drivers/net/ethernet/sfc/Kconfig
@@ -34,3 +34,10 @@ config SFC_SRIOV
 	  This enables support for the SFC9000 I/O Virtualization
 	  features, allowing accelerated network performance in
 	  virtualized environments.
+config SFC_PTP
+	bool "Solarflare SFC9000-family PTP support"
+	depends on SFC && PTP_1588_CLOCK && !(SFC=y && PTP_1588_CLOCK=m)
+	default y
+	---help---
+	  This enables support for the Precision Time Protocol (PTP)
+	  on SFC9000-family NICs
diff --git a/drivers/net/ethernet/sfc/Makefile b/drivers/net/ethernet/sfc/Makefile
index ea1f8db5731..e11f2ecf69d 100644
--- a/drivers/net/ethernet/sfc/Makefile
+++ b/drivers/net/ethernet/sfc/Makefile
@@ -5,5 +5,6 @@ sfc-y			+= efx.o nic.o falcon.o siena.o tx.o rx.o filter.o \
 			   mcdi.o mcdi_phy.o mcdi_mon.o
 sfc-$(CONFIG_SFC_MTD)	+= mtd.o
 sfc-$(CONFIG_SFC_SRIOV)	+= siena_sriov.o
+sfc-$(CONFIG_SFC_PTP)	+= ptp.o
 
 obj-$(CONFIG_SFC)	+= sfc.o
diff --git a/drivers/net/ethernet/sfc/bitfield.h b/drivers/net/ethernet/sfc/bitfield.h
index b26a954c27f..5400a33f254 100644
--- a/drivers/net/ethernet/sfc/bitfield.h
+++ b/drivers/net/ethernet/sfc/bitfield.h
@@ -120,10 +120,10 @@ typedef union efx_oword {
  * [0,high-low), with garbage in bits [high-low+1,...).
  */
 #define EFX_EXTRACT_NATIVE(native_element, min, max, low, high)		\
-	(((low > max) || (high < min)) ? 0 :				\
-	 ((low > min) ?							\
-	  ((native_element) >> (low - min)) :				\
-	  ((native_element) << (min - low))))
+	((low) > (max) || (high) < (min) ? 0 :				\
+	 (low) > (min) ?						\
+	 (native_element) >> ((low) - (min)) :				\
+	 (native_element) << ((min) - (low)))
 
 /*
  * Extract bit field portion [low,high) from the 64-bit little-endian
@@ -142,27 +142,27 @@ typedef union efx_oword {
 #define EFX_EXTRACT_OWORD64(oword, low, high)				\
 	((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) |		\
 	  EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) &		\
-	 EFX_MASK64(high + 1 - low))
+	 EFX_MASK64((high) + 1 - (low)))
 
 #define EFX_EXTRACT_QWORD64(qword, low, high)				\
 	(EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) &		\
-	 EFX_MASK64(high + 1 - low))
+	 EFX_MASK64((high) + 1 - (low)))
 
 #define EFX_EXTRACT_OWORD32(oword, low, high)				\
 	((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) |		\
 	  EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) |		\
 	  EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) |		\
 	  EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) &		\
-	 EFX_MASK32(high + 1 - low))
+	 EFX_MASK32((high) + 1 - (low)))
 
 #define EFX_EXTRACT_QWORD32(qword, low, high)				\
 	((EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) |		\
 	  EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) &		\
-	 EFX_MASK32(high + 1 - low))
+	 EFX_MASK32((high) + 1 - (low)))
 
 #define EFX_EXTRACT_DWORD(dword, low, high)			\
 	(EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) &	\
-	 EFX_MASK32(high + 1 - low))
+	 EFX_MASK32((high) + 1 - (low)))
 
 #define EFX_OWORD_FIELD64(oword, field)				\
 	EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field),		\
@@ -442,10 +442,10 @@ typedef union efx_oword {
 	cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value))
 
 #define EFX_INPLACE_MASK64(min, max, low, high)				\
-	EFX_INSERT64(min, max, low, high, EFX_MASK64(high + 1 - low))
+	EFX_INSERT64(min, max, low, high, EFX_MASK64((high) + 1 - (low)))
 
 #define EFX_INPLACE_MASK32(min, max, low, high)				\
-	EFX_INSERT32(min, max, low, high, EFX_MASK32(high + 1 - low))
+	EFX_INSERT32(min, max, low, high, EFX_MASK32((high) + 1 - (low)))
 
 #define EFX_SET_OWORD64(oword, low, high, value) do {			\
 	(oword).u64[0] = (((oword).u64[0]				\
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 70554a1b2b0..96bd980e828 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -202,11 +202,21 @@ static void efx_stop_all(struct efx_nic *efx);
 
 #define EFX_ASSERT_RESET_SERIALISED(efx)		\
 	do {						\
-		if ((efx->state == STATE_RUNNING) ||	\
+		if ((efx->state == STATE_READY) ||	\
 		    (efx->state == STATE_DISABLED))	\
 			ASSERT_RTNL();			\
 	} while (0)
 
+static int efx_check_disabled(struct efx_nic *efx)
+{
+	if (efx->state == STATE_DISABLED) {
+		netif_err(efx, drv, efx->net_dev,
+			  "device is disabled due to earlier errors\n");
+		return -EIO;
+	}
+	return 0;
+}
+
 /**************************************************************************
  *
  * Event queue processing
@@ -630,6 +640,16 @@ static void efx_start_datapath(struct efx_nic *efx)
 	efx->rx_buffer_order = get_order(efx->rx_buffer_len +
 					 sizeof(struct efx_rx_page_state));
 
+	/* We must keep at least one descriptor in a TX ring empty.
+	 * We could avoid this when the queue size does not exactly
+	 * match the hardware ring size, but it's not that important.
+	 * Therefore we stop the queue when one more skb might fill
+	 * the ring completely.  We wake it when half way back to
+	 * empty.
+	 */
+	efx->txq_stop_thresh = efx->txq_entries - efx_tx_max_skb_descs(efx);
+	efx->txq_wake_thresh = efx->txq_stop_thresh / 2;
+
 	/* Initialise the channels */
 	efx_for_each_channel(channel, efx) {
 		efx_for_each_channel_tx_queue(tx_queue, channel)
@@ -714,6 +734,7 @@ static void efx_remove_channel(struct efx_channel *channel)
 	efx_for_each_possible_channel_tx_queue(tx_queue, channel)
 		efx_remove_tx_queue(tx_queue);
 	efx_remove_eventq(channel);
+	channel->type->post_remove(channel);
 }
 
 static void efx_remove_channels(struct efx_nic *efx)
@@ -730,7 +751,11 @@ efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries)
 	struct efx_channel *other_channel[EFX_MAX_CHANNELS], *channel;
 	u32 old_rxq_entries, old_txq_entries;
 	unsigned i, next_buffer_table = 0;
-	int rc = 0;
+	int rc;
+
+	rc = efx_check_disabled(efx);
+	if (rc)
+		return rc;
 
 	/* Not all channels should be reallocated. We must avoid
 	 * reallocating their buffer table entries.
@@ -828,6 +853,7 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue)
 
 static const struct efx_channel_type efx_default_channel_type = {
 	.pre_probe		= efx_channel_dummy_op_int,
+	.post_remove		= efx_channel_dummy_op_void,
 	.get_name		= efx_get_channel_name,
 	.copy			= efx_copy_channel,
 	.keep_eventq		= false,
@@ -838,6 +864,10 @@ int efx_channel_dummy_op_int(struct efx_channel *channel)
 	return 0;
 }
 
+void efx_channel_dummy_op_void(struct efx_channel *channel)
+{
+}
+
 /**************************************************************************
  *
  * Port handling
@@ -1365,6 +1395,8 @@ static void efx_start_interrupts(struct efx_nic *efx, bool may_keep_eventq)
 {
 	struct efx_channel *channel;
 
+	BUG_ON(efx->state == STATE_DISABLED);
+
 	if (efx->legacy_irq)
 		efx->legacy_irq_enabled = true;
 	efx_nic_enable_interrupts(efx);
@@ -1382,6 +1414,9 @@ static void efx_stop_interrupts(struct efx_nic *efx, bool may_keep_eventq)
 {
 	struct efx_channel *channel;
 
+	if (efx->state == STATE_DISABLED)
+		return;
+
 	efx_mcdi_mode_poll(efx);
 
 	efx_nic_disable_interrupts(efx);
@@ -1422,10 +1457,16 @@ static void efx_set_channels(struct efx_nic *efx)
 	efx->tx_channel_offset =
 		separate_tx_channels ? efx->n_channels - efx->n_tx_channels : 0;
 
-	/* We need to adjust the TX queue numbers if we have separate
+	/* We need to mark which channels really have RX and TX
+	 * queues, and adjust the TX queue numbers if we have separate
 	 * RX-only and TX-only channels.
 	 */
 	efx_for_each_channel(channel, efx) {
+		if (channel->channel < efx->n_rx_channels)
+			channel->rx_queue.core_index = channel->channel;
+		else
+			channel->rx_queue.core_index = -1;
+
 		efx_for_each_channel_tx_queue(tx_queue, channel)
 			tx_queue->queue -= (efx->tx_channel_offset *
 					    EFX_TXQ_TYPES);
@@ -1503,6 +1544,11 @@ static int efx_probe_all(struct efx_nic *efx)
 		goto fail2;
 	}
 
+	BUILD_BUG_ON(EFX_DEFAULT_DMAQ_SIZE < EFX_RXQ_MIN_ENT);
+	if (WARN_ON(EFX_DEFAULT_DMAQ_SIZE < EFX_TXQ_MIN_ENT(efx))) {
+		rc = -EINVAL;
+		goto fail3;
+	}
 	efx->rxq_entries = efx->txq_entries = EFX_DEFAULT_DMAQ_SIZE;
 
 	rc = efx_probe_filters(efx);
@@ -1528,22 +1574,21 @@ static int efx_probe_all(struct efx_nic *efx)
 	return rc;
 }
 
-/* Called after previous invocation(s) of efx_stop_all, restarts the port,
- * kernel transmit queues and NAPI processing, and ensures that the port is
- * scheduled to be reconfigured. This function is safe to call multiple
- * times when the NIC is in any state.
+/* If the interface is supposed to be running but is not, start
+ * the hardware and software data path, regular activity for the port
+ * (MAC statistics, link polling, etc.) and schedule the port to be
+ * reconfigured.  Interrupts must already be enabled.  This function
+ * is safe to call multiple times, so long as the NIC is not disabled.
+ * Requires the RTNL lock.
  */
 static void efx_start_all(struct efx_nic *efx)
 {
 	EFX_ASSERT_RESET_SERIALISED(efx);
+	BUG_ON(efx->state == STATE_DISABLED);
 
 	/* Check that it is appropriate to restart the interface. All
 	 * of these flags are safe to read under just the rtnl lock */
-	if (efx->port_enabled)
-		return;
-	if ((efx->state != STATE_RUNNING) && (efx->state != STATE_INIT))
-		return;
-	if (!netif_running(efx->net_dev))
+	if (efx->port_enabled || !netif_running(efx->net_dev))
 		return;
 
 	efx_start_port(efx);
@@ -1577,11 +1622,11 @@ static void efx_flush_all(struct efx_nic *efx)
 	cancel_work_sync(&efx->mac_work);
 }
 
-/* Quiesce hardware and software without bringing the link down.
- * Safe to call multiple times, when the nic and interface is in any
- * state. The caller is guaranteed to subsequently be in a position
- * to modify any hardware and software state they see fit without
- * taking locks. */
+/* Quiesce the hardware and software data path, and regular activity
+ * for the port without bringing the link down.  Safe to call multiple
+ * times with the NIC in almost any state, but interrupts should be
+ * enabled.  Requires the RTNL lock.
+ */
 static void efx_stop_all(struct efx_nic *efx)
 {
 	EFX_ASSERT_RESET_SERIALISED(efx);
@@ -1734,7 +1779,8 @@ static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct mii_ioctl_data *data = if_mii(ifr);
 
-	EFX_ASSERT_RESET_SERIALISED(efx);
+	if (cmd == SIOCSHWTSTAMP)
+		return efx_ptp_ioctl(efx, ifr, cmd);
 
 	/* Convert phy_id from older PRTAD/DEVAD format */
 	if ((cmd == SIOCGMIIREG || cmd == SIOCSMIIREG) &&
@@ -1815,13 +1861,14 @@ static void efx_netpoll(struct net_device *net_dev)
 static int efx_net_open(struct net_device *net_dev)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
-	EFX_ASSERT_RESET_SERIALISED(efx);
+	int rc;
 
 	netif_dbg(efx, ifup, efx->net_dev, "opening device on CPU %d\n",
 		  raw_smp_processor_id());
 
-	if (efx->state == STATE_DISABLED)
-		return -EIO;
+	rc = efx_check_disabled(efx);
+	if (rc)
+		return rc;
 	if (efx->phy_mode & PHY_MODE_SPECIAL)
 		return -EBUSY;
 	if (efx_mcdi_poll_reboot(efx) && efx_reset(efx, RESET_TYPE_ALL))
@@ -1847,10 +1894,8 @@ static int efx_net_stop(struct net_device *net_dev)
 	netif_dbg(efx, ifdown, efx->net_dev, "closing on CPU %d\n",
 		  raw_smp_processor_id());
 
-	if (efx->state != STATE_DISABLED) {
-		/* Stop the device and flush all the channels */
-		efx_stop_all(efx);
-	}
+	/* Stop the device and flush all the channels */
+	efx_stop_all(efx);
 
 	return 0;
 }
@@ -1910,9 +1955,11 @@ static void efx_watchdog(struct net_device *net_dev)
 static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
+	int rc;
 
-	EFX_ASSERT_RESET_SERIALISED(efx);
-
+	rc = efx_check_disabled(efx);
+	if (rc)
+		return rc;
 	if (new_mtu > EFX_MAX_MTU)
 		return -EINVAL;
 
@@ -1921,8 +1968,6 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
 	netif_dbg(efx, drv, efx->net_dev, "changing MTU to %d\n", new_mtu);
 
 	mutex_lock(&efx->mac_lock);
-	/* Reconfigure the MAC before enabling the dma queues so that
-	 * the RX buffers don't overflow */
 	net_dev->mtu = new_mtu;
 	efx->type->reconfigure_mac(efx);
 	mutex_unlock(&efx->mac_lock);
@@ -1937,8 +1982,6 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data)
 	struct sockaddr *addr = data;
 	char *new_addr = addr->sa_data;
 
-	EFX_ASSERT_RESET_SERIALISED(efx);
-
 	if (!is_valid_ether_addr(new_addr)) {
 		netif_err(efx, drv, efx->net_dev,
 			  "invalid ethernet MAC address requested: %pM\n",
@@ -2070,14 +2113,31 @@ static int efx_register_netdev(struct efx_nic *efx)
 	net_dev->irq = efx->pci_dev->irq;
 	net_dev->netdev_ops = &efx_netdev_ops;
 	SET_ETHTOOL_OPS(net_dev, &efx_ethtool_ops);
+	net_dev->gso_max_segs = EFX_TSO_MAX_SEGS;
 
 	rtnl_lock();
 
+	/* Enable resets to be scheduled and check whether any were
+	 * already requested.  If so, the NIC is probably hosed so we
+	 * abort.
+	 */
+	efx->state = STATE_READY;
+	smp_mb(); /* ensure we change state before checking reset_pending */
+	if (efx->reset_pending) {
+		netif_err(efx, probe, efx->net_dev,
+			  "aborting probe due to scheduled reset\n");
+		rc = -EIO;
+		goto fail_locked;
+	}
+
 	rc = dev_alloc_name(net_dev, net_dev->name);
 	if (rc < 0)
 		goto fail_locked;
 	efx_update_name(efx);
 
+	/* Always start with carrier off; PHY events will detect the link */
+	netif_carrier_off(net_dev);
+
 	rc = register_netdevice(net_dev);
 	if (rc)
 		goto fail_locked;
@@ -2088,9 +2148,6 @@ static int efx_register_netdev(struct efx_nic *efx)
 			efx_init_tx_queue_core_txq(tx_queue);
 	}
 
-	/* Always start with carrier off; PHY events will detect the link */
-	netif_carrier_off(net_dev);
-
 	rtnl_unlock();
 
 	rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_type);
@@ -2102,14 +2159,14 @@ static int efx_register_netdev(struct efx_nic *efx)
 
 	return 0;
 
+fail_registered:
+	rtnl_lock();
+	unregister_netdevice(net_dev);
 fail_locked:
+	efx->state = STATE_UNINIT;
 	rtnl_unlock();
 	netif_err(efx, drv, efx->net_dev, "could not register net dev\n");
 	return rc;
-
-fail_registered:
-	unregister_netdev(net_dev);
-	return rc;
 }
 
 static void efx_unregister_netdev(struct efx_nic *efx)
@@ -2132,7 +2189,11 @@ static void efx_unregister_netdev(struct efx_nic *efx)
 
 	strlcpy(efx->name, pci_name(efx->pci_dev), sizeof(efx->name));
 	device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_type);
-	unregister_netdev(efx->net_dev);
+
+	rtnl_lock();
+	unregister_netdevice(efx->net_dev);
+	efx->state = STATE_UNINIT;
+	rtnl_unlock();
 }
 
 /**************************************************************************
@@ -2148,9 +2209,9 @@ void efx_reset_down(struct efx_nic *efx, enum reset_type method)
 	EFX_ASSERT_RESET_SERIALISED(efx);
 
 	efx_stop_all(efx);
-	mutex_lock(&efx->mac_lock);
-
 	efx_stop_interrupts(efx, false);
+
+	mutex_lock(&efx->mac_lock);
 	if (efx->port_initialized && method != RESET_TYPE_INVISIBLE)
 		efx->phy_op->fini(efx);
 	efx->type->fini(efx);
@@ -2270,16 +2331,15 @@ static void efx_reset_work(struct work_struct *data)
 	if (!pending)
 		return;
 
-	/* If we're not RUNNING then don't reset. Leave the reset_pending
-	 * flags set so that efx_pci_probe_main will be retried */
-	if (efx->state != STATE_RUNNING) {
-		netif_info(efx, drv, efx->net_dev,
-			   "scheduled reset quenched. NIC not RUNNING\n");
-		return;
-	}
-
 	rtnl_lock();
-	(void)efx_reset(efx, fls(pending) - 1);
+
+	/* We checked the state in efx_schedule_reset() but it may
+	 * have changed by now.  Now that we have the RTNL lock,
+	 * it cannot change again.
+	 */
+	if (efx->state == STATE_READY)
+		(void)efx_reset(efx, fls(pending) - 1);
+
 	rtnl_unlock();
 }
 
@@ -2305,6 +2365,13 @@ void efx_schedule_reset(struct efx_nic *efx, enum reset_type type)
 	}
 
 	set_bit(method, &efx->reset_pending);
+	smp_mb(); /* ensure we change reset_pending before checking state */
+
+	/* If we're not READY then just leave the flags set as the cue
+	 * to abort probing or reschedule the reset later.
+	 */
+	if (ACCESS_ONCE(efx->state) != STATE_READY)
+		return;
 
 	/* efx_process_channel() will no longer read events once a
 	 * reset is scheduled. So switch back to poll'd MCDI completions. */
@@ -2370,13 +2437,12 @@ static const struct efx_phy_operations efx_dummy_phy_operations = {
 /* This zeroes out and then fills in the invariants in a struct
  * efx_nic (including all sub-structures).
  */
-static int efx_init_struct(struct efx_nic *efx, const struct efx_nic_type *type,
+static int efx_init_struct(struct efx_nic *efx,
 			   struct pci_dev *pci_dev, struct net_device *net_dev)
 {
 	int i;
 
 	/* Initialise common structures */
-	memset(efx, 0, sizeof(*efx));
 	spin_lock_init(&efx->biu_lock);
 #ifdef CONFIG_SFC_MTD
 	INIT_LIST_HEAD(&efx->mtd_list);
@@ -2386,7 +2452,7 @@ static int efx_init_struct(struct efx_nic *efx, const struct efx_nic_type *type,
 	INIT_DELAYED_WORK(&efx->selftest_work, efx_selftest_async_work);
 	efx->pci_dev = pci_dev;
 	efx->msg_enable = debug;
-	efx->state = STATE_INIT;
+	efx->state = STATE_UNINIT;
 	strlcpy(efx->name, pci_name(pci_dev), sizeof(efx->name));
 
 	efx->net_dev = net_dev;
@@ -2403,8 +2469,6 @@ static int efx_init_struct(struct efx_nic *efx, const struct efx_nic_type *type,
 			goto fail;
 	}
 
-	efx->type = type;
-
 	EFX_BUG_ON_PARANOID(efx->type->phys_addr_channels > EFX_MAX_CHANNELS);
 
 	/* Higher numbered interrupt modes are less capable! */
@@ -2449,6 +2513,12 @@ static void efx_fini_struct(struct efx_nic *efx)
  */
 static void efx_pci_remove_main(struct efx_nic *efx)
 {
+	/* Flush reset_work. It can no longer be scheduled since we
+	 * are not READY.
+	 */
+	BUG_ON(efx->state == STATE_READY);
+	cancel_work_sync(&efx->reset_work);
+
 #ifdef CONFIG_RFS_ACCEL
 	free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
 	efx->net_dev->rx_cpu_rmap = NULL;
@@ -2474,24 +2544,15 @@ static void efx_pci_remove(struct pci_dev *pci_dev)
 
 	/* Mark the NIC as fini, then stop the interface */
 	rtnl_lock();
-	efx->state = STATE_FINI;
 	dev_close(efx->net_dev);
-
-	/* Allow any queued efx_resets() to complete */
+	efx_stop_interrupts(efx, false);
 	rtnl_unlock();
 
-	efx_stop_interrupts(efx, false);
 	efx_sriov_fini(efx);
 	efx_unregister_netdev(efx);
 
 	efx_mtd_remove(efx);
 
-	/* Wait for any scheduled resets to complete. No more will be
-	 * scheduled from this point because efx_stop_all() has been
-	 * called, we are no longer registered with driverlink, and
-	 * the net_device's have been removed. */
-	cancel_work_sync(&efx->reset_work);
-
 	efx_pci_remove_main(efx);
 
 	efx_fini_io(efx);
@@ -2611,7 +2672,6 @@ static int efx_pci_probe_main(struct efx_nic *efx)
 static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
 				   const struct pci_device_id *entry)
 {
-	const struct efx_nic_type *type = (const struct efx_nic_type *) entry->driver_data;
 	struct net_device *net_dev;
 	struct efx_nic *efx;
 	int rc;
@@ -2621,10 +2681,12 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
 				     EFX_MAX_RX_QUEUES);
 	if (!net_dev)
 		return -ENOMEM;
-	net_dev->features |= (type->offload_features | NETIF_F_SG |
+	efx = netdev_priv(net_dev);
+	efx->type = (const struct efx_nic_type *) entry->driver_data;
+	net_dev->features |= (efx->type->offload_features | NETIF_F_SG |
 			      NETIF_F_HIGHDMA | NETIF_F_TSO |
 			      NETIF_F_RXCSUM);
-	if (type->offload_features & NETIF_F_V6_CSUM)
+	if (efx->type->offload_features & NETIF_F_V6_CSUM)
 		net_dev->features |= NETIF_F_TSO6;
 	/* Mask for features that also apply to VLAN devices */
 	net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG |
@@ -2632,10 +2694,9 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
 				   NETIF_F_RXCSUM);
 	/* All offloads can be toggled */
 	net_dev->hw_features = net_dev->features & ~NETIF_F_HIGHDMA;
-	efx = netdev_priv(net_dev);
 	pci_set_drvdata(pci_dev, efx);
 	SET_NETDEV_DEV(net_dev, &pci_dev->dev);
-	rc = efx_init_struct(efx, type, pci_dev, net_dev);
+	rc = efx_init_struct(efx, pci_dev, net_dev);
 	if (rc)
 		goto fail1;
 
@@ -2650,28 +2711,9 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
 		goto fail2;
 
 	rc = efx_pci_probe_main(efx);
-
-	/* Serialise against efx_reset(). No more resets will be
-	 * scheduled since efx_stop_all() has been called, and we have
-	 * not and never have been registered.
-	 */
-	cancel_work_sync(&efx->reset_work);
-
 	if (rc)
 		goto fail3;
 
-	/* If there was a scheduled reset during probe, the NIC is
-	 * probably hosed anyway.
-	 */
-	if (efx->reset_pending) {
-		rc = -EIO;
-		goto fail4;
-	}
-
-	/* Switch to the running state before we expose the device to the OS,
-	 * so that dev_open()|efx_start_all() will actually start the device */
-	efx->state = STATE_RUNNING;
-
 	rc = efx_register_netdev(efx);
 	if (rc)
 		goto fail4;
@@ -2711,12 +2753,18 @@ static int efx_pm_freeze(struct device *dev)
 {
 	struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
 
-	efx->state = STATE_FINI;
+	rtnl_lock();
 
-	netif_device_detach(efx->net_dev);
+	if (efx->state != STATE_DISABLED) {
+		efx->state = STATE_UNINIT;
 
-	efx_stop_all(efx);
-	efx_stop_interrupts(efx, false);
+		netif_device_detach(efx->net_dev);
+
+		efx_stop_all(efx);
+		efx_stop_interrupts(efx, false);
+	}
+
+	rtnl_unlock();
 
 	return 0;
 }
@@ -2725,21 +2773,25 @@ static int efx_pm_thaw(struct device *dev)
 {
 	struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
 
-	efx->state = STATE_INIT;
+	rtnl_lock();
 
-	efx_start_interrupts(efx, false);
+	if (efx->state != STATE_DISABLED) {
+		efx_start_interrupts(efx, false);
 
-	mutex_lock(&efx->mac_lock);
-	efx->phy_op->reconfigure(efx);
-	mutex_unlock(&efx->mac_lock);
+		mutex_lock(&efx->mac_lock);
+		efx->phy_op->reconfigure(efx);
+		mutex_unlock(&efx->mac_lock);
 
-	efx_start_all(efx);
+		efx_start_all(efx);
 
-	netif_device_attach(efx->net_dev);
+		netif_device_attach(efx->net_dev);
 
-	efx->state = STATE_RUNNING;
+		efx->state = STATE_READY;
 
-	efx->type->resume_wol(efx);
+		efx->type->resume_wol(efx);
+	}
+
+	rtnl_unlock();
 
 	/* Reschedule any quenched resets scheduled during efx_pm_freeze() */
 	queue_work(reset_workqueue, &efx->reset_work);
diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index be8f9158a71..f11170bc48b 100644
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -30,6 +30,7 @@ extern netdev_tx_t
 efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
 extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
 extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
+extern unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
 
 /* RX */
 extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
@@ -52,10 +53,15 @@ extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
 #define EFX_MAX_EVQ_SIZE 16384UL
 #define EFX_MIN_EVQ_SIZE 512UL
 
-/* The smallest [rt]xq_entries that the driver supports. Callers of
- * efx_wake_queue() assume that they can subsequently send at least one
- * skb. Falcon/A1 may require up to three descriptors per skb_frag. */
-#define EFX_MIN_RING_SIZE (roundup_pow_of_two(2 * 3 * MAX_SKB_FRAGS))
+/* Maximum number of TCP segments we support for soft-TSO */
+#define EFX_TSO_MAX_SEGS	100
+
+/* The smallest [rt]xq_entries that the driver supports.  RX minimum
+ * is a bit arbitrary.  For TX, we must have space for at least 2
+ * TSO skbs.
+ */
+#define EFX_RXQ_MIN_ENT		128U
+#define EFX_TXQ_MIN_ENT(efx)	(2 * efx_tx_max_skb_descs(efx))
 
 /* Filters */
 extern int efx_probe_filters(struct efx_nic *efx);
@@ -96,6 +102,7 @@ static inline void efx_filter_rfs_expire(struct efx_channel *channel) {}
 
 /* Channels */
 extern int efx_channel_dummy_op_int(struct efx_channel *channel);
+extern void efx_channel_dummy_op_void(struct efx_channel *channel);
 extern void efx_process_channel_now(struct efx_channel *channel);
 extern int
 efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 10536f93b56..90f078eff8e 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -337,7 +337,8 @@ static int efx_fill_loopback_test(struct efx_nic *efx,
 				  unsigned int test_index,
 				  struct ethtool_string *strings, u64 *data)
 {
-	struct efx_channel *channel = efx_get_channel(efx, 0);
+	struct efx_channel *channel =
+		efx_get_channel(efx, efx->tx_channel_offset);
 	struct efx_tx_queue *tx_queue;
 
 	efx_for_each_channel_tx_queue(tx_queue, channel) {
@@ -529,9 +530,7 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
 	if (!efx_tests)
 		goto fail;
 
-
-	ASSERT_RTNL();
-	if (efx->state != STATE_RUNNING) {
+	if (efx->state != STATE_READY) {
 		rc = -EIO;
 		goto fail1;
 	}
@@ -680,21 +679,27 @@ static int efx_ethtool_set_ringparam(struct net_device *net_dev,
 				     struct ethtool_ringparam *ring)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
+	u32 txq_entries;
 
 	if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
 	    ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
 	    ring->tx_pending > EFX_MAX_DMAQ_SIZE)
 		return -EINVAL;
 
-	if (ring->rx_pending < EFX_MIN_RING_SIZE ||
-	    ring->tx_pending < EFX_MIN_RING_SIZE) {
+	if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
 		netif_err(efx, drv, efx->net_dev,
-			  "TX and RX queues cannot be smaller than %ld\n",
-			  EFX_MIN_RING_SIZE);
+			  "RX queues cannot be smaller than %u\n",
+			  EFX_RXQ_MIN_ENT);
 		return -EINVAL;
 	}
 
-	return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
+	txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
+	if (txq_entries != ring->tx_pending)
+		netif_warn(efx, drv, efx->net_dev,
+			   "increasing TX queue size to minimum of %u\n",
+			   txq_entries);
+
+	return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
 }
 
 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
@@ -857,8 +862,8 @@ static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 				       &ip_entry->ip4dst, &ip_entry->pdst);
 	if (rc != 0) {
 		rc = efx_filter_get_ipv4_full(
-			&spec, &proto, &ip_entry->ip4src, &ip_entry->psrc,
-			&ip_entry->ip4dst, &ip_entry->pdst);
+			&spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst,
+			&ip_entry->ip4src, &ip_entry->psrc);
 		EFX_WARN_ON_PARANOID(rc);
 		ip_mask->ip4src = ~0;
 		ip_mask->psrc = ~0;
@@ -956,9 +961,7 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx,
 	int rc;
 
 	/* Check that user wants us to choose the location */
-	if (rule->location != RX_CLS_LOC_ANY &&
-	    rule->location != RX_CLS_LOC_FIRST &&
-	    rule->location != RX_CLS_LOC_LAST)
+	if (rule->location != RX_CLS_LOC_ANY)
 		return -EINVAL;
 
 	/* Range-check ring_cookie */
@@ -972,9 +975,7 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx,
 	     rule->m_ext.data[1]))
 		return -EINVAL;
 
-	efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
-			   (rule->location == RX_CLS_LOC_FIRST) ?
-			   EFX_FILTER_FLAG_RX_OVERRIDE_IP : 0,
+	efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, 0,
 			   (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
 			   0xfff : rule->ring_cookie);
 
@@ -1170,6 +1171,7 @@ const struct ethtool_ops efx_ethtool_ops = {
 	.get_rxfh_indir_size	= efx_ethtool_get_rxfh_indir_size,
 	.get_rxfh_indir		= efx_ethtool_get_rxfh_indir,
 	.set_rxfh_indir		= efx_ethtool_set_rxfh_indir,
+	.get_ts_info		= efx_ptp_get_ts_info,
 	.get_module_info	= efx_ethtool_get_module_info,
 	.get_module_eeprom	= efx_ethtool_get_module_eeprom,
 };
diff --git a/drivers/net/ethernet/sfc/falcon_boards.c b/drivers/net/ethernet/sfc/falcon_boards.c
index 8687a6c3db0..ec1e99d0dca 100644
--- a/drivers/net/ethernet/sfc/falcon_boards.c
+++ b/drivers/net/ethernet/sfc/falcon_boards.c
@@ -380,7 +380,7 @@ static ssize_t set_phy_flash_cfg(struct device *dev,
 		new_mode = PHY_MODE_SPECIAL;
 	if (!((old_mode ^ new_mode) & PHY_MODE_SPECIAL)) {
 		err = 0;
-	} else if (efx->state != STATE_RUNNING || netif_running(efx->net_dev)) {
+	} else if (efx->state != STATE_READY || netif_running(efx->net_dev)) {
 		err = -EBUSY;
 	} else {
 		/* Reset the PHY, reconfigure the MAC and enable/disable
diff --git a/drivers/net/ethernet/sfc/filter.c b/drivers/net/ethernet/sfc/filter.c
index c3fd61f0a95..8af42cd1fed 100644
--- a/drivers/net/ethernet/sfc/filter.c
+++ b/drivers/net/ethernet/sfc/filter.c
@@ -162,20 +162,12 @@ static void efx_filter_push_rx_config(struct efx_nic *efx)
 			!!(table->spec[EFX_FILTER_INDEX_UC_DEF].flags &
 			   EFX_FILTER_FLAG_RX_RSS));
 		EFX_SET_OWORD_FIELD(
-			filter_ctl, FRF_CZ_UNICAST_NOMATCH_IP_OVERRIDE,
-			!!(table->spec[EFX_FILTER_INDEX_UC_DEF].flags &
-			   EFX_FILTER_FLAG_RX_OVERRIDE_IP));
-		EFX_SET_OWORD_FIELD(
 			filter_ctl, FRF_CZ_MULTICAST_NOMATCH_Q_ID,
 			table->spec[EFX_FILTER_INDEX_MC_DEF].dmaq_id);
 		EFX_SET_OWORD_FIELD(
 			filter_ctl, FRF_CZ_MULTICAST_NOMATCH_RSS_ENABLED,
 			!!(table->spec[EFX_FILTER_INDEX_MC_DEF].flags &
 			   EFX_FILTER_FLAG_RX_RSS));
-		EFX_SET_OWORD_FIELD(
-			filter_ctl, FRF_CZ_MULTICAST_NOMATCH_IP_OVERRIDE,
-			!!(table->spec[EFX_FILTER_INDEX_MC_DEF].flags &
-			   EFX_FILTER_FLAG_RX_OVERRIDE_IP));
 	}
 
 	efx_writeo(efx, &filter_ctl, FR_BZ_RX_FILTER_CTL);
@@ -480,14 +472,12 @@ static u32 efx_filter_build(efx_oword_t *filter, struct efx_filter_spec *spec)
 
 	case EFX_FILTER_TABLE_RX_MAC: {
 		bool is_wild = spec->type == EFX_FILTER_MAC_WILD;
-		EFX_POPULATE_OWORD_8(
+		EFX_POPULATE_OWORD_7(
 			*filter,
 			FRF_CZ_RMFT_RSS_EN,
 			!!(spec->flags & EFX_FILTER_FLAG_RX_RSS),
 			FRF_CZ_RMFT_SCATTER_EN,
 			!!(spec->flags & EFX_FILTER_FLAG_RX_SCATTER),
-			FRF_CZ_RMFT_IP_OVERRIDE,
-			!!(spec->flags & EFX_FILTER_FLAG_RX_OVERRIDE_IP),
 			FRF_CZ_RMFT_RXQ_ID, spec->dmaq_id,
 			FRF_CZ_RMFT_WILDCARD_MATCH, is_wild,
 			FRF_CZ_RMFT_DEST_MAC_HI, spec->data[2],
@@ -567,49 +557,62 @@ static int efx_filter_search(struct efx_filter_table *table,
 }
 
 /*
- * Construct/deconstruct external filter IDs.  These must be ordered
- * by matching priority, for RX NFC semantics.
+ * Construct/deconstruct external filter IDs.  At least the RX filter
+ * IDs must be ordered by matching priority, for RX NFC semantics.
  *
- * Each RX MAC filter entry has a flag for whether it can override an
- * RX IP filter that also matches.  So we assign locations for MAC
- * filters with overriding behaviour, then for IP filters, then for
- * MAC filters without overriding behaviour.
+ * Deconstruction needs to be robust against invalid IDs so that
+ * efx_filter_remove_id_safe() and efx_filter_get_filter_safe() can
+ * accept user-provided IDs.
  */
 
-#define EFX_FILTER_MATCH_PRI_RX_MAC_OVERRIDE_IP	0
-#define EFX_FILTER_MATCH_PRI_RX_DEF_OVERRIDE_IP	1
-#define EFX_FILTER_MATCH_PRI_NORMAL_BASE	2
+#define EFX_FILTER_MATCH_PRI_COUNT	5
+
+static const u8 efx_filter_type_match_pri[EFX_FILTER_TYPE_COUNT] = {
+	[EFX_FILTER_TCP_FULL]	= 0,
+	[EFX_FILTER_UDP_FULL]	= 0,
+	[EFX_FILTER_TCP_WILD]	= 1,
+	[EFX_FILTER_UDP_WILD]	= 1,
+	[EFX_FILTER_MAC_FULL]	= 2,
+	[EFX_FILTER_MAC_WILD]	= 3,
+	[EFX_FILTER_UC_DEF]	= 4,
+	[EFX_FILTER_MC_DEF]	= 4,
+};
+
+static const enum efx_filter_table_id efx_filter_range_table[] = {
+	EFX_FILTER_TABLE_RX_IP,		/* RX match pri 0 */
+	EFX_FILTER_TABLE_RX_IP,
+	EFX_FILTER_TABLE_RX_MAC,
+	EFX_FILTER_TABLE_RX_MAC,
+	EFX_FILTER_TABLE_RX_DEF,	/* RX match pri 4 */
+	EFX_FILTER_TABLE_COUNT,		/* TX match pri 0; invalid */
+	EFX_FILTER_TABLE_COUNT,		/* invalid */
+	EFX_FILTER_TABLE_TX_MAC,
+	EFX_FILTER_TABLE_TX_MAC,	/* TX match pri 3 */
+};
 
 #define EFX_FILTER_INDEX_WIDTH	13
 #define EFX_FILTER_INDEX_MASK	((1 << EFX_FILTER_INDEX_WIDTH) - 1)
 
-static inline u32 efx_filter_make_id(enum efx_filter_table_id table_id,
-				     unsigned int index, u8 flags)
+static inline u32
+efx_filter_make_id(const struct efx_filter_spec *spec, unsigned int index)
 {
-	unsigned int match_pri = EFX_FILTER_MATCH_PRI_NORMAL_BASE + table_id;
+	unsigned int range;
 
-	if (flags & EFX_FILTER_FLAG_RX_OVERRIDE_IP) {
-		if (table_id == EFX_FILTER_TABLE_RX_MAC)
-			match_pri = EFX_FILTER_MATCH_PRI_RX_MAC_OVERRIDE_IP;
-		else if (table_id == EFX_FILTER_TABLE_RX_DEF)
-			match_pri = EFX_FILTER_MATCH_PRI_RX_DEF_OVERRIDE_IP;
-	}
+	range = efx_filter_type_match_pri[spec->type];
+	if (!(spec->flags & EFX_FILTER_FLAG_RX))
+		range += EFX_FILTER_MATCH_PRI_COUNT;
 
-	return match_pri << EFX_FILTER_INDEX_WIDTH | index;
+	return range << EFX_FILTER_INDEX_WIDTH | index;
 }
 
 static inline enum efx_filter_table_id efx_filter_id_table_id(u32 id)
 {
-	unsigned int match_pri = id >> EFX_FILTER_INDEX_WIDTH;
+	unsigned int range = id >> EFX_FILTER_INDEX_WIDTH;
 
-	switch (match_pri) {
-	case EFX_FILTER_MATCH_PRI_RX_MAC_OVERRIDE_IP:
-		return EFX_FILTER_TABLE_RX_MAC;
-	case EFX_FILTER_MATCH_PRI_RX_DEF_OVERRIDE_IP:
-		return EFX_FILTER_TABLE_RX_DEF;
-	default:
-		return match_pri - EFX_FILTER_MATCH_PRI_NORMAL_BASE;
-	}
+	if (range < ARRAY_SIZE(efx_filter_range_table))
+		return efx_filter_range_table[range];
+	else
+		return EFX_FILTER_TABLE_COUNT; /* invalid */
 }
 
 static inline unsigned int efx_filter_id_index(u32 id)
@@ -619,12 +622,9 @@ static inline unsigned int efx_filter_id_index(u32 id)
 
 static inline u8 efx_filter_id_flags(u32 id)
 {
-	unsigned int match_pri = id >> EFX_FILTER_INDEX_WIDTH;
+	unsigned int range = id >> EFX_FILTER_INDEX_WIDTH;
 
-	if (match_pri < EFX_FILTER_MATCH_PRI_NORMAL_BASE)
-		return EFX_FILTER_FLAG_RX | EFX_FILTER_FLAG_RX_OVERRIDE_IP;
-	else if (match_pri <=
-		 EFX_FILTER_MATCH_PRI_NORMAL_BASE + EFX_FILTER_TABLE_RX_DEF)
+	if (range < EFX_FILTER_MATCH_PRI_COUNT)
 		return EFX_FILTER_FLAG_RX;
 	else
 		return EFX_FILTER_FLAG_TX;
@@ -633,14 +633,15 @@ static inline u8 efx_filter_id_flags(u32 id)
 u32 efx_filter_get_rx_id_limit(struct efx_nic *efx)
 {
 	struct efx_filter_state *state = efx->filter_state;
-	unsigned int table_id = EFX_FILTER_TABLE_RX_DEF;
+	unsigned int range = EFX_FILTER_MATCH_PRI_COUNT - 1;
+	enum efx_filter_table_id table_id;
 
 	do {
+		table_id = efx_filter_range_table[range];
 		if (state->table[table_id].size != 0)
-			return ((EFX_FILTER_MATCH_PRI_NORMAL_BASE + table_id)
-				<< EFX_FILTER_INDEX_WIDTH) +
+			return range << EFX_FILTER_INDEX_WIDTH |
 				state->table[table_id].size;
-	} while (table_id--);
+	} while (range--);
 
 	return 0;
 }
@@ -718,7 +719,7 @@ s32 efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
 	netif_vdbg(efx, hw, efx->net_dev,
 		   "%s: filter type %d index %d rxq %u set",
 		   __func__, spec->type, filter_idx, spec->dmaq_id);
-	rc = efx_filter_make_id(table->id, filter_idx, spec->flags);
+	rc = efx_filter_make_id(spec, filter_idx);
 
 out:
 	spin_unlock_bh(&state->lock);
@@ -781,8 +782,7 @@ int efx_filter_remove_id_safe(struct efx_nic *efx,
 	spin_lock_bh(&state->lock);
 
 	if (test_bit(filter_idx, table->used_bitmap) &&
-	    spec->priority == priority &&
-	    !((spec->flags ^ filter_flags) & EFX_FILTER_FLAG_RX_OVERRIDE_IP)) {
+	    spec->priority == priority) {
 		efx_filter_table_clear_entry(efx, table, filter_idx);
 		if (table->used == 0)
 			efx_filter_table_reset_search_depth(table);
@@ -833,8 +833,7 @@ int efx_filter_get_filter_safe(struct efx_nic *efx,
 	spin_lock_bh(&state->lock);
 
 	if (test_bit(filter_idx, table->used_bitmap) &&
-	    spec->priority == priority &&
-	    !((spec->flags ^ filter_flags) & EFX_FILTER_FLAG_RX_OVERRIDE_IP)) {
+	    spec->priority == priority) {
 		*spec_buf = *spec;
 		rc = 0;
 	} else {
@@ -927,8 +926,7 @@ s32 efx_filter_get_rx_ids(struct efx_nic *efx,
 					goto out;
 				}
 				buf[count++] = efx_filter_make_id(
-					table_id, filter_idx,
-					table->spec[filter_idx].flags);
+					&table->spec[filter_idx], filter_idx);
 			}
 		}
 	}
diff --git a/drivers/net/ethernet/sfc/filter.h b/drivers/net/ethernet/sfc/filter.h
index 3c77802aed6..5cb54723b82 100644
--- a/drivers/net/ethernet/sfc/filter.h
+++ b/drivers/net/ethernet/sfc/filter.h
@@ -61,16 +61,12 @@ enum efx_filter_priority {
  *	according to the indirection table.
  * @EFX_FILTER_FLAG_RX_SCATTER: Enable DMA scatter on the receiving
  *	queue.
- * @EFX_FILTER_FLAG_RX_OVERRIDE_IP: Enables a MAC filter to override
- *	any IP filter that matches the same packet.  By default, IP
- *	filters take precedence.
  * @EFX_FILTER_FLAG_RX: Filter is for RX
  * @EFX_FILTER_FLAG_TX: Filter is for TX
  */
 enum efx_filter_flags {
 	EFX_FILTER_FLAG_RX_RSS = 0x01,
 	EFX_FILTER_FLAG_RX_SCATTER = 0x02,
-	EFX_FILTER_FLAG_RX_OVERRIDE_IP = 0x04,
 	EFX_FILTER_FLAG_RX = 0x08,
 	EFX_FILTER_FLAG_TX = 0x10,
 };
@@ -88,8 +84,7 @@ enum efx_filter_flags {
  *
  * The @priority field is used by software to determine whether a new
  * filter may replace an old one.  The hardware priority of a filter
- * depends on the filter type and %EFX_FILTER_FLAG_RX_OVERRIDE_IP
- * flag.
+ * depends on the filter type.
  */
 struct efx_filter_spec {
 	u8	type:4;
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index fc5e7bbcbc9..aea43cbd052 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -320,14 +320,20 @@ static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno,
 		efx_mcdi_complete(mcdi);
 }
 
-/* Issue the given command by writing the data into the shared memory PDU,
- * ring the doorbell and wait for completion. Copyout the result. */
 int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
 		 const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen,
 		 size_t *outlen_actual)
 {
+	efx_mcdi_rpc_start(efx, cmd, inbuf, inlen);
+	return efx_mcdi_rpc_finish(efx, cmd, inlen,
+				   outbuf, outlen, outlen_actual);
+}
+
+void efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd, const u8 *inbuf,
+			size_t inlen)
+{
 	struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
-	int rc;
+
 	BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
 
 	efx_mcdi_acquire(mcdi);
@@ -338,6 +344,15 @@ int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
 	spin_unlock_bh(&mcdi->iface_lock);
 
 	efx_mcdi_copyin(efx, cmd, inbuf, inlen);
+}
+
+int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
+			u8 *outbuf, size_t outlen, size_t *outlen_actual)
+{
+	struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
+	int rc;
+
+	BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0);
 
 	if (mcdi->mode == MCDI_MODE_POLL)
 		rc = efx_mcdi_poll(efx);
@@ -563,6 +578,11 @@ void efx_mcdi_process_event(struct efx_channel *channel,
 	case MCDI_EVENT_CODE_FLR:
 		efx_sriov_flr(efx, MCDI_EVENT_FIELD(*event, FLR_VF));
 		break;
+	case MCDI_EVENT_CODE_PTP_RX:
+	case MCDI_EVENT_CODE_PTP_FAULT:
+	case MCDI_EVENT_CODE_PTP_PPS:
+		efx_ptp_event(efx, event);
+		break;
 
 	default:
 		netif_err(efx, hw, efx->net_dev, "Unknown MCDI event 0x%x\n",
@@ -641,9 +661,8 @@ int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
 			   u16 *fw_subtype_list, u32 *capabilities)
 {
 	uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LENMIN];
-	size_t outlen;
+	size_t outlen, offset, i;
 	int port_num = efx_port_num(efx);
-	int offset;
 	int rc;
 
 	BUILD_BUG_ON(MC_CMD_GET_BOARD_CFG_IN_LEN != 0);
@@ -663,11 +682,18 @@ int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
 		: MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST;
 	if (mac_address)
 		memcpy(mac_address, outbuf + offset, ETH_ALEN);
-	if (fw_subtype_list)
-		memcpy(fw_subtype_list,
-		       outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST,
-		       MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MINNUM *
-		       sizeof(fw_subtype_list[0]));
+	if (fw_subtype_list) {
+		/* Byte-swap and truncate or zero-pad as necessary */
+		offset = MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST;
+		for (i = 0;
+		     i < MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM;
+		     i++) {
+			fw_subtype_list[i] =
+				(offset + 2 <= outlen) ?
+				le16_to_cpup((__le16 *)(outbuf + offset)) : 0;
+			offset += 2;
+		}
+	}
 	if (capabilities) {
 		if (port_num)
 			*capabilities = MCDI_DWORD(outbuf,
@@ -1169,6 +1195,9 @@ int efx_mcdi_flush_rxqs(struct efx_nic *efx)
 	__le32 *qid;
 	int rc, count;
 
+	BUILD_BUG_ON(EFX_MAX_CHANNELS >
+		     MC_CMD_FLUSH_RX_QUEUES_IN_QID_OFST_MAXNUM);
+
 	qid = kmalloc(EFX_MAX_CHANNELS * sizeof(*qid), GFP_KERNEL);
 	if (qid == NULL)
 		return -ENOMEM;
diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h
index 0bdf3e33183..3ba2e5b5a9c 100644
--- a/drivers/net/ethernet/sfc/mcdi.h
+++ b/drivers/net/ethernet/sfc/mcdi.h
@@ -71,6 +71,12 @@ extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const u8 *inbuf,
 			size_t inlen, u8 *outbuf, size_t outlen,
 			size_t *outlen_actual);
 
+extern void efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
+			       const u8 *inbuf, size_t inlen);
+extern int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
+			       u8 *outbuf, size_t outlen,
+			       size_t *outlen_actual);
+
 extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
 extern void efx_mcdi_mode_poll(struct efx_nic *efx);
 extern void efx_mcdi_mode_event(struct efx_nic *efx);
@@ -107,11 +113,13 @@ extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
 #define MCDI_EVENT_FIELD(_ev, _field)			\
 	EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
 #define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2)		\
-	EFX_DWORD_FIELD(						\
+	EFX_EXTRACT_DWORD(						\
 		*((efx_dword_t *)					\
 		  (MCDI_ARRAY_PTR(_buf, _field1, _type, _index) +	\
 		   (MC_CMD_ ## _type ## _TYPEDEF_ ## _field2 ## _OFST & ~3))), \
-		MC_CMD_ ## _type ## _TYPEDEF_ ## _field2)
+		MC_CMD_ ## _type ## _TYPEDEF_ ## _field2 ## _LBN & 0x1f, \
+		(MC_CMD_ ## _type ## _TYPEDEF_ ## _field2 ## _LBN & 0x1f) + \
+		MC_CMD_ ## _type ## _TYPEDEF_ ## _field2 ## _WIDTH - 1)
 
 extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
 extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
diff --git a/drivers/net/ethernet/sfc/mcdi_pcol.h b/drivers/net/ethernet/sfc/mcdi_pcol.h
index db4beed9766..9d426d0457b 100644
--- a/drivers/net/ethernet/sfc/mcdi_pcol.h
+++ b/drivers/net/ethernet/sfc/mcdi_pcol.h
@@ -289,6 +289,7 @@
 #define          MCDI_EVENT_CODE_TX_FLUSH  0xc /* enum */
 #define          MCDI_EVENT_CODE_PTP_RX  0xd /* enum */
 #define          MCDI_EVENT_CODE_PTP_FAULT  0xe /* enum */
+#define          MCDI_EVENT_CODE_PTP_PPS  0xf /* enum */
 #define       MCDI_EVENT_CMDDONE_DATA_OFST 0
 #define       MCDI_EVENT_CMDDONE_DATA_LBN 0
 #define       MCDI_EVENT_CMDDONE_DATA_WIDTH 32
@@ -491,12 +492,12 @@
 
 /* MC_CMD_GET_FPGAREG_OUT msgresponse */
 #define    MC_CMD_GET_FPGAREG_OUT_LENMIN 1
-#define    MC_CMD_GET_FPGAREG_OUT_LENMAX 255
+#define    MC_CMD_GET_FPGAREG_OUT_LENMAX 252
 #define    MC_CMD_GET_FPGAREG_OUT_LEN(num) (0+1*(num))
 #define       MC_CMD_GET_FPGAREG_OUT_BUFFER_OFST 0
 #define       MC_CMD_GET_FPGAREG_OUT_BUFFER_LEN 1
 #define       MC_CMD_GET_FPGAREG_OUT_BUFFER_MINNUM 1
-#define       MC_CMD_GET_FPGAREG_OUT_BUFFER_MAXNUM 255
+#define       MC_CMD_GET_FPGAREG_OUT_BUFFER_MAXNUM 252
 
 
 /***********************************/
@@ -507,13 +508,13 @@
 
 /* MC_CMD_PUT_FPGAREG_IN msgrequest */
 #define    MC_CMD_PUT_FPGAREG_IN_LENMIN 5
-#define    MC_CMD_PUT_FPGAREG_IN_LENMAX 255
+#define    MC_CMD_PUT_FPGAREG_IN_LENMAX 252
 #define    MC_CMD_PUT_FPGAREG_IN_LEN(num) (4+1*(num))
 #define       MC_CMD_PUT_FPGAREG_IN_ADDR_OFST 0
 #define       MC_CMD_PUT_FPGAREG_IN_BUFFER_OFST 4
 #define       MC_CMD_PUT_FPGAREG_IN_BUFFER_LEN 1
 #define       MC_CMD_PUT_FPGAREG_IN_BUFFER_MINNUM 1
-#define       MC_CMD_PUT_FPGAREG_IN_BUFFER_MAXNUM 251
+#define       MC_CMD_PUT_FPGAREG_IN_BUFFER_MAXNUM 248
 
 /* MC_CMD_PUT_FPGAREG_OUT msgresponse */
 #define    MC_CMD_PUT_FPGAREG_OUT_LEN 0
@@ -560,7 +561,7 @@
 
 /* MC_CMD_PTP_IN_TRANSMIT msgrequest */
 #define    MC_CMD_PTP_IN_TRANSMIT_LENMIN 13
-#define    MC_CMD_PTP_IN_TRANSMIT_LENMAX 255
+#define    MC_CMD_PTP_IN_TRANSMIT_LENMAX 252
 #define    MC_CMD_PTP_IN_TRANSMIT_LEN(num) (12+1*(num))
 /*            MC_CMD_PTP_IN_CMD_OFST 0 */
 /*            MC_CMD_PTP_IN_PERIPH_ID_OFST 4 */
@@ -568,7 +569,7 @@
 #define       MC_CMD_PTP_IN_TRANSMIT_PACKET_OFST 12
 #define       MC_CMD_PTP_IN_TRANSMIT_PACKET_LEN 1
 #define       MC_CMD_PTP_IN_TRANSMIT_PACKET_MINNUM 1
-#define       MC_CMD_PTP_IN_TRANSMIT_PACKET_MAXNUM 243
+#define       MC_CMD_PTP_IN_TRANSMIT_PACKET_MAXNUM 240
 
 /* MC_CMD_PTP_IN_READ_NIC_TIME msgrequest */
 #define    MC_CMD_PTP_IN_READ_NIC_TIME_LEN 8
@@ -1145,7 +1146,7 @@
 
 /* MC_CMD_PUTS_IN msgrequest */
 #define    MC_CMD_PUTS_IN_LENMIN 13
-#define    MC_CMD_PUTS_IN_LENMAX 255
+#define    MC_CMD_PUTS_IN_LENMAX 252
 #define    MC_CMD_PUTS_IN_LEN(num) (12+1*(num))
 #define       MC_CMD_PUTS_IN_DEST_OFST 0
 #define        MC_CMD_PUTS_IN_UART_LBN 0
@@ -1157,7 +1158,7 @@
 #define       MC_CMD_PUTS_IN_STRING_OFST 12
 #define       MC_CMD_PUTS_IN_STRING_LEN 1
 #define       MC_CMD_PUTS_IN_STRING_MINNUM 1
-#define       MC_CMD_PUTS_IN_STRING_MAXNUM 243
+#define       MC_CMD_PUTS_IN_STRING_MAXNUM 240
 
 /* MC_CMD_PUTS_OUT msgresponse */
 #define    MC_CMD_PUTS_OUT_LEN 0
@@ -1947,12 +1948,12 @@
 
 /* MC_CMD_NVRAM_READ_OUT msgresponse */
 #define    MC_CMD_NVRAM_READ_OUT_LENMIN 1
-#define    MC_CMD_NVRAM_READ_OUT_LENMAX 255
+#define    MC_CMD_NVRAM_READ_OUT_LENMAX 252
 #define    MC_CMD_NVRAM_READ_OUT_LEN(num) (0+1*(num))
 #define       MC_CMD_NVRAM_READ_OUT_READ_BUFFER_OFST 0
 #define       MC_CMD_NVRAM_READ_OUT_READ_BUFFER_LEN 1
 #define       MC_CMD_NVRAM_READ_OUT_READ_BUFFER_MINNUM 1
-#define       MC_CMD_NVRAM_READ_OUT_READ_BUFFER_MAXNUM 255
+#define       MC_CMD_NVRAM_READ_OUT_READ_BUFFER_MAXNUM 252
 
 
 /***********************************/
@@ -1963,7 +1964,7 @@
 
 /* MC_CMD_NVRAM_WRITE_IN msgrequest */
 #define    MC_CMD_NVRAM_WRITE_IN_LENMIN 13
-#define    MC_CMD_NVRAM_WRITE_IN_LENMAX 255
+#define    MC_CMD_NVRAM_WRITE_IN_LENMAX 252
 #define    MC_CMD_NVRAM_WRITE_IN_LEN(num) (12+1*(num))
 #define       MC_CMD_NVRAM_WRITE_IN_TYPE_OFST 0
 /*            Enum values, see field(s): */
@@ -1973,7 +1974,7 @@
 #define       MC_CMD_NVRAM_WRITE_IN_WRITE_BUFFER_OFST 12
 #define       MC_CMD_NVRAM_WRITE_IN_WRITE_BUFFER_LEN 1
 #define       MC_CMD_NVRAM_WRITE_IN_WRITE_BUFFER_MINNUM 1
-#define       MC_CMD_NVRAM_WRITE_IN_WRITE_BUFFER_MAXNUM 243
+#define       MC_CMD_NVRAM_WRITE_IN_WRITE_BUFFER_MAXNUM 240
 
 /* MC_CMD_NVRAM_WRITE_OUT msgresponse */
 #define    MC_CMD_NVRAM_WRITE_OUT_LEN 0
@@ -2305,13 +2306,13 @@
 
 /* MC_CMD_GET_PHY_MEDIA_INFO_OUT msgresponse */
 #define    MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMIN 5
-#define    MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX 255
+#define    MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX 252
 #define    MC_CMD_GET_PHY_MEDIA_INFO_OUT_LEN(num) (4+1*(num))
 #define       MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATALEN_OFST 0
 #define       MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST 4
 #define       MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_LEN 1
 #define       MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_MINNUM 1
-#define       MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_MAXNUM 251
+#define       MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_MAXNUM 248
 
 
 /***********************************/
diff --git a/drivers/net/ethernet/sfc/mtd.c b/drivers/net/ethernet/sfc/mtd.c
index 758148379b0..08f825b71ac 100644
--- a/drivers/net/ethernet/sfc/mtd.c
+++ b/drivers/net/ethernet/sfc/mtd.c
@@ -585,6 +585,7 @@ static const struct siena_nvram_type_info siena_nvram_types[] = {
 	[MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT1]	= { 1, "sfc_exp_rom_cfg" },
 	[MC_CMD_NVRAM_TYPE_PHY_PORT0]		= { 0, "sfc_phy_fw" },
 	[MC_CMD_NVRAM_TYPE_PHY_PORT1]		= { 1, "sfc_phy_fw" },
+	[MC_CMD_NVRAM_TYPE_FPGA]		= { 0, "sfc_fpga" },
 };
 
 static int siena_mtd_probe_partition(struct efx_nic *efx,
@@ -598,7 +599,8 @@ static int siena_mtd_probe_partition(struct efx_nic *efx,
 	bool protected;
 	int rc;
 
-	if (type >= ARRAY_SIZE(siena_nvram_types))
+	if (type >= ARRAY_SIZE(siena_nvram_types) ||
+	    siena_nvram_types[type].name == NULL)
 		return -ENODEV;
 
 	info = &siena_nvram_types[type];
@@ -627,7 +629,8 @@ static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
 				     struct efx_mtd *efx_mtd)
 {
 	struct efx_mtd_partition *part;
-	uint16_t fw_subtype_list[MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MINNUM];
+	uint16_t fw_subtype_list[
+		MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM];
 	int rc;
 
 	rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list, NULL);
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index cd9c0a98969..c1a010cda89 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -37,7 +37,7 @@
  *
  **************************************************************************/
 
-#define EFX_DRIVER_VERSION	"3.1"
+#define EFX_DRIVER_VERSION	"3.2"
 
 #ifdef DEBUG
 #define EFX_BUG_ON_PARANOID(x) BUG_ON(x)
@@ -56,7 +56,8 @@
 #define EFX_MAX_CHANNELS 32U
 #define EFX_MAX_RX_QUEUES EFX_MAX_CHANNELS
 #define EFX_EXTRA_CHANNEL_IOV	0
-#define EFX_MAX_EXTRA_CHANNELS	1U
+#define EFX_EXTRA_CHANNEL_PTP	1
+#define EFX_MAX_EXTRA_CHANNELS	2U
 
 /* Checksum generation is a per-queue option in hardware, so each
  * queue visible to the networking core is backed by two hardware TX
@@ -68,6 +69,9 @@
 #define EFX_TXQ_TYPES		4
 #define EFX_MAX_TX_QUEUES	(EFX_TXQ_TYPES * EFX_MAX_CHANNELS)
 
+/* Forward declare Precision Time Protocol (PTP) support structure. */
+struct efx_ptp_data;
+
 struct efx_self_tests;
 
 /**
@@ -91,29 +95,31 @@ struct efx_special_buffer {
 };
 
 /**
- * struct efx_tx_buffer - An Efx TX buffer
- * @skb: The associated socket buffer.
- *	Set only on the final fragment of a packet; %NULL for all other
- *	fragments.  When this fragment completes, then we can free this
- *	skb.
- * @tsoh: The associated TSO header structure, or %NULL if this
- *	buffer is not a TSO header.
+ * struct efx_tx_buffer - buffer state for a TX descriptor
+ * @skb: When @flags & %EFX_TX_BUF_SKB, the associated socket buffer to be
+ *	freed when descriptor completes
+ * @heap_buf: When @flags & %EFX_TX_BUF_HEAP, the associated heap buffer to be
+ *	freed when descriptor completes.
  * @dma_addr: DMA address of the fragment.
+ * @flags: Flags for allocation and DMA mapping type
  * @len: Length of this fragment.
  *	This field is zero when the queue slot is empty.
- * @continuation: True if this fragment is not the end of a packet.
- * @unmap_single: True if dma_unmap_single should be used.
  * @unmap_len: Length of this fragment to unmap
  */
 struct efx_tx_buffer {
-	const struct sk_buff *skb;
-	struct efx_tso_header *tsoh;
+	union {
+		const struct sk_buff *skb;
+		void *heap_buf;
+	};
 	dma_addr_t dma_addr;
+	unsigned short flags;
 	unsigned short len;
-	bool continuation;
-	bool unmap_single;
 	unsigned short unmap_len;
 };
+#define EFX_TX_BUF_CONT		1	/* not last descriptor of packet */
+#define EFX_TX_BUF_SKB		2	/* buffer is last part of skb */
+#define EFX_TX_BUF_HEAP		4	/* buffer was allocated with kmalloc() */
+#define EFX_TX_BUF_MAP_SINGLE	8	/* buffer was mapped with dma_map_single() */
 
 /**
  * struct efx_tx_queue - An Efx TX queue
@@ -133,6 +139,7 @@ struct efx_tx_buffer {
  * @channel: The associated channel
  * @core_txq: The networking core TX queue structure
  * @buffer: The software buffer ring
+ * @tsoh_page: Array of pages of TSO header buffers
  * @txd: The hardware descriptor ring
  * @ptr_mask: The size of the ring minus 1.
  * @initialised: Has hardware queue been initialised?
@@ -156,9 +163,6 @@ struct efx_tx_buffer {
  *	variable indicates that the queue is full.  This is to
  *	avoid cache-line ping-pong between the xmit path and the
  *	completion path.
- * @tso_headers_free: A list of TSO headers allocated for this TX queue
- *	that are not in use, and so available for new TSO sends. The list
- *	is protected by the TX queue lock.
  * @tso_bursts: Number of times TSO xmit invoked by kernel
  * @tso_long_headers: Number of packets with headers too long for standard
  *	blocks
@@ -175,6 +179,7 @@ struct efx_tx_queue {
 	struct efx_channel *channel;
 	struct netdev_queue *core_txq;
 	struct efx_tx_buffer *buffer;
+	struct efx_buffer *tsoh_page;
 	struct efx_special_buffer txd;
 	unsigned int ptr_mask;
 	bool initialised;
@@ -187,7 +192,6 @@ struct efx_tx_queue {
 	unsigned int insert_count ____cacheline_aligned_in_smp;
 	unsigned int write_count;
 	unsigned int old_read_count;
-	struct efx_tso_header *tso_headers_free;
 	unsigned int tso_bursts;
 	unsigned int tso_long_headers;
 	unsigned int tso_packets;
@@ -242,6 +246,8 @@ struct efx_rx_page_state {
 /**
  * struct efx_rx_queue - An Efx RX queue
  * @efx: The associated Efx NIC
+ * @core_index:  Index of network core RX queue.  Will be >= 0 iff this
+ *	is associated with a real RX queue.
  * @buffer: The software buffer ring
  * @rxd: The hardware descriptor ring
  * @ptr_mask: The size of the ring minus 1.
@@ -263,6 +269,7 @@ struct efx_rx_page_state {
  */
 struct efx_rx_queue {
 	struct efx_nic *efx;
+	int core_index;
 	struct efx_rx_buffer *buffer;
 	struct efx_special_buffer rxd;
 	unsigned int ptr_mask;
@@ -390,14 +397,17 @@ struct efx_channel {
  * @get_name: Generate the channel's name (used for its IRQ handler)
  * @copy: Copy the channel state prior to reallocation.  May be %NULL if
  *	reallocation is not supported.
+ * @receive_skb: Handle an skb ready to be passed to netif_receive_skb()
  * @keep_eventq: Flag for whether event queue should be kept initialised
  *	while the device is stopped
  */
 struct efx_channel_type {
 	void (*handle_no_channel)(struct efx_nic *);
 	int (*pre_probe)(struct efx_channel *);
+	void (*post_remove)(struct efx_channel *);
 	void (*get_name)(struct efx_channel *, char *buf, size_t len);
 	struct efx_channel *(*copy)(const struct efx_channel *);
+	void (*receive_skb)(struct efx_channel *, struct sk_buff *);
 	bool keep_eventq;
 };
 
@@ -430,11 +440,9 @@ enum efx_int_mode {
 #define EFX_INT_MODE_USE_MSI(x) (((x)->interrupt_mode) <= EFX_INT_MODE_MSI)
 
 enum nic_state {
-	STATE_INIT = 0,
-	STATE_RUNNING = 1,
-	STATE_FINI = 2,
-	STATE_DISABLED = 3,
-	STATE_MAX,
+	STATE_UNINIT = 0,	/* device being probed/removed or is frozen */
+	STATE_READY = 1,	/* hardware ready and netdev registered */
+	STATE_DISABLED = 2,	/* device disabled due to hardware errors */
 };
 
 /*
@@ -654,7 +662,7 @@ struct vfdi_status;
  * @irq_rx_adaptive: Adaptive IRQ moderation enabled for RX event queues
  * @irq_rx_moderation: IRQ moderation time for RX event queues
  * @msg_enable: Log message enable flags
- * @state: Device state flag. Serialised by the rtnl_lock.
+ * @state: Device state number (%STATE_*). Serialised by the rtnl_lock.
  * @reset_pending: Bitmask for pending resets
  * @tx_queue: TX DMA queues
  * @rx_queue: RX DMA queues
@@ -664,6 +672,8 @@ struct vfdi_status;
  *	should be allocated for this NIC
  * @rxq_entries: Size of receive queues requested by user.
  * @txq_entries: Size of transmit queues requested by user.
+ * @txq_stop_thresh: TX queue fill level at or above which we stop it.
+ * @txq_wake_thresh: TX queue fill level at or below which we wake it.
  * @tx_dc_base: Base qword address in SRAM of TX queue descriptor caches
  * @rx_dc_base: Base qword address in SRAM of RX queue descriptor caches
  * @sram_lim_qw: Qword address limit of SRAM
@@ -730,6 +740,7 @@ struct vfdi_status;
  *	%local_addr_list. Protected by %local_lock.
  * @local_lock: Mutex protecting %local_addr_list and %local_page_list.
  * @peer_work: Work item to broadcast peer addresses to VMs.
+ * @ptp_data: PTP state data
  * @monitor_work: Hardware monitor workitem
  * @biu_lock: BIU (bus interface unit) lock
  * @last_irq_cpu: Last CPU to handle a possible test interrupt.  This
@@ -774,6 +785,9 @@ struct efx_nic {
 
 	unsigned rxq_entries;
 	unsigned txq_entries;
+	unsigned int txq_stop_thresh;
+	unsigned int txq_wake_thresh;
+
 	unsigned tx_dc_base;
 	unsigned rx_dc_base;
 	unsigned sram_lim_qw;
@@ -854,6 +868,10 @@ struct efx_nic {
 	struct work_struct peer_work;
 #endif
 
+#ifdef CONFIG_SFC_PTP
+	struct efx_ptp_data *ptp_data;
+#endif
+
 	/* The following fields may be written more often */
 
 	struct delayed_work monitor_work ____cacheline_aligned_in_smp;
@@ -1044,7 +1062,7 @@ static inline bool efx_tx_queue_used(struct efx_tx_queue *tx_queue)
 
 static inline bool efx_channel_has_rx_queue(struct efx_channel *channel)
 {
-	return channel->channel < channel->efx->n_rx_channels;
+	return channel->rx_queue.core_index >= 0;
 }
 
 static inline struct efx_rx_queue *
@@ -1116,5 +1134,13 @@ static inline void clear_bit_le(unsigned nr, unsigned char *addr)
 #define EFX_MAX_FRAME_LEN(mtu) \
 	((((mtu) + ETH_HLEN + VLAN_HLEN + 4/* FCS */ + 7) & ~7) + 16)
 
+static inline bool efx_xmit_with_hwtstamp(struct sk_buff *skb)
+{
+	return skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP;
+}
+static inline void efx_xmit_hwtstamp_pending(struct sk_buff *skb)
+{
+	skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+}
 
 #endif /* EFX_NET_DRIVER_H */
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index 326d799762d..cdff40b6572 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -298,7 +298,7 @@ efx_free_special_buffer(struct efx_nic *efx, struct efx_special_buffer *buffer)
 /**************************************************************************
  *
  * Generic buffer handling
- * These buffers are used for interrupt status and MAC stats
+ * These buffers are used for interrupt status, MAC stats, etc.
  *
  **************************************************************************/
 
@@ -401,8 +401,10 @@ void efx_nic_push_buffers(struct efx_tx_queue *tx_queue)
 		++tx_queue->write_count;
 
 		/* Create TX descriptor ring entry */
+		BUILD_BUG_ON(EFX_TX_BUF_CONT != 1);
 		EFX_POPULATE_QWORD_4(*txd,
-				     FSF_AZ_TX_KER_CONT, buffer->continuation,
+				     FSF_AZ_TX_KER_CONT,
+				     buffer->flags & EFX_TX_BUF_CONT,
 				     FSF_AZ_TX_KER_BYTE_COUNT, buffer->len,
 				     FSF_AZ_TX_KER_BUF_REGION, 0,
 				     FSF_AZ_TX_KER_BUF_ADDR, buffer->dma_addr);
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index bab5cd9f574..438cef11f72 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -11,6 +11,7 @@
 #ifndef EFX_NIC_H
 #define EFX_NIC_H
 
+#include <linux/net_tstamp.h>
 #include <linux/i2c-algo-bit.h>
 #include "net_driver.h"
 #include "efx.h"
@@ -250,6 +251,41 @@ extern int efx_sriov_get_vf_config(struct net_device *dev, int vf,
 extern int efx_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf,
 				     bool spoofchk);
 
+struct ethtool_ts_info;
+#ifdef CONFIG_SFC_PTP
+extern void efx_ptp_probe(struct efx_nic *efx);
+extern int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd);
+extern int efx_ptp_get_ts_info(struct net_device *net_dev,
+			       struct ethtool_ts_info *ts_info);
+extern bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
+extern int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
+extern void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
+#else
+static inline void efx_ptp_probe(struct efx_nic *efx) {}
+static inline int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd)
+{
+	return -EOPNOTSUPP;
+}
+static inline int efx_ptp_get_ts_info(struct net_device *net_dev,
+				      struct ethtool_ts_info *ts_info)
+{
+	ts_info->so_timestamping = (SOF_TIMESTAMPING_SOFTWARE |
+				    SOF_TIMESTAMPING_RX_SOFTWARE);
+	ts_info->phc_index = -1;
+
+	return 0;
+}
+static inline bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb)
+{
+	return false;
+}
+static inline int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb)
+{
+	return NETDEV_TX_OK;
+}
+static inline void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev) {}
+#endif
+
 extern const struct efx_nic_type falcon_a1_nic_type;
 extern const struct efx_nic_type falcon_b0_nic_type;
 extern const struct efx_nic_type siena_a0_nic_type;
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
new file mode 100644
index 00000000000..5b3dd028ce8
--- /dev/null
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -0,0 +1,1484 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2011 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+/* Theory of operation:
+ *
+ * PTP support is assisted by firmware running on the MC, which provides
+ * the hardware timestamping capabilities.  Both transmitted and received
+ * PTP event packets are queued onto internal queues for subsequent processing;
+ * this is because the MC operations are relatively long and would block
+ * block NAPI/interrupt operation.
+ *
+ * Receive event processing:
+ *	The event contains the packet's UUID and sequence number, together
+ *	with the hardware timestamp.  The PTP receive packet queue is searched
+ *	for this UUID/sequence number and, if found, put on a pending queue.
+ *	Packets not matching are delivered without timestamps (MCDI events will
+ *	always arrive after the actual packet).
+ *	It is important for the operation of the PTP protocol that the ordering
+ *	of packets between the event and general port is maintained.
+ *
+ * Work queue processing:
+ *	If work waiting, synchronise host/hardware time
+ *
+ *	Transmit: send packet through MC, which returns the transmission time
+ *	that is converted to an appropriate timestamp.
+ *
+ *	Receive: the packet's reception time is converted to an appropriate
+ *	timestamp.
+ */
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <linux/time.h>
+#include <linux/ktime.h>
+#include <linux/module.h>
+#include <linux/net_tstamp.h>
+#include <linux/pps_kernel.h>
+#include <linux/ptp_clock_kernel.h>
+#include "net_driver.h"
+#include "efx.h"
+#include "mcdi.h"
+#include "mcdi_pcol.h"
+#include "io.h"
+#include "regs.h"
+#include "nic.h"
+
+/* Maximum number of events expected to make up a PTP event */
+#define	MAX_EVENT_FRAGS			3
+
+/* Maximum delay, ms, to begin synchronisation */
+#define	MAX_SYNCHRONISE_WAIT_MS		2
+
+/* How long, at most, to spend synchronising */
+#define	SYNCHRONISE_PERIOD_NS		250000
+
+/* How often to update the shared memory time */
+#define	SYNCHRONISATION_GRANULARITY_NS	200
+
+/* Minimum permitted length of a (corrected) synchronisation time */
+#define	MIN_SYNCHRONISATION_NS		120
+
+/* Maximum permitted length of a (corrected) synchronisation time */
+#define	MAX_SYNCHRONISATION_NS		1000
+
+/* How many (MC) receive events that can be queued */
+#define	MAX_RECEIVE_EVENTS		8
+
+/* Length of (modified) moving average. */
+#define	AVERAGE_LENGTH			16
+
+/* How long an unmatched event or packet can be held */
+#define PKT_EVENT_LIFETIME_MS		10
+
+/* Offsets into PTP packet for identification.  These offsets are from the
+ * start of the IP header, not the MAC header.  Note that neither PTP V1 nor
+ * PTP V2 permit the use of IPV4 options.
+ */
+#define PTP_DPORT_OFFSET	22
+
+#define PTP_V1_VERSION_LENGTH	2
+#define PTP_V1_VERSION_OFFSET	28
+
+#define PTP_V1_UUID_LENGTH	6
+#define PTP_V1_UUID_OFFSET	50
+
+#define PTP_V1_SEQUENCE_LENGTH	2
+#define PTP_V1_SEQUENCE_OFFSET	58
+
+/* The minimum length of a PTP V1 packet for offsets, etc. to be valid:
+ * includes IP header.
+ */
+#define	PTP_V1_MIN_LENGTH	64
+
+#define PTP_V2_VERSION_LENGTH	1
+#define PTP_V2_VERSION_OFFSET	29
+
+/* Although PTP V2 UUIDs are comprised a ClockIdentity (8) and PortNumber (2),
+ * the MC only captures the last six bytes of the clock identity. These values
+ * reflect those, not the ones used in the standard.  The standard permits
+ * mapping of V1 UUIDs to V2 UUIDs with these same values.
+ */
+#define PTP_V2_MC_UUID_LENGTH	6
+#define PTP_V2_MC_UUID_OFFSET	50
+
+#define PTP_V2_SEQUENCE_LENGTH	2
+#define PTP_V2_SEQUENCE_OFFSET	58
+
+/* The minimum length of a PTP V2 packet for offsets, etc. to be valid:
+ * includes IP header.
+ */
+#define	PTP_V2_MIN_LENGTH	63
+
+#define	PTP_MIN_LENGTH		63
+
+#define PTP_ADDRESS		0xe0000181	/* 224.0.1.129 */
+#define PTP_EVENT_PORT		319
+#define PTP_GENERAL_PORT	320
+
+/* Annoyingly the format of the version numbers are different between
+ * versions 1 and 2 so it isn't possible to simply look for 1 or 2.
+ */
+#define	PTP_VERSION_V1		1
+
+#define	PTP_VERSION_V2		2
+#define	PTP_VERSION_V2_MASK	0x0f
+
+enum ptp_packet_state {
+	PTP_PACKET_STATE_UNMATCHED = 0,
+	PTP_PACKET_STATE_MATCHED,
+	PTP_PACKET_STATE_TIMED_OUT,
+	PTP_PACKET_STATE_MATCH_UNWANTED
+};
+
+/* NIC synchronised with single word of time only comprising
+ * partial seconds and full nanoseconds: 10^9 ~ 2^30 so 2 bits for seconds.
+ */
+#define	MC_NANOSECOND_BITS	30
+#define	MC_NANOSECOND_MASK	((1 << MC_NANOSECOND_BITS) - 1)
+#define	MC_SECOND_MASK		((1 << (32 - MC_NANOSECOND_BITS)) - 1)
+
+/* Maximum parts-per-billion adjustment that is acceptable */
+#define MAX_PPB			1000000
+
+/* Number of bits required to hold the above */
+#define	MAX_PPB_BITS		20
+
+/* Number of extra bits allowed when calculating fractional ns.
+ * EXTRA_BITS + MC_CMD_PTP_IN_ADJUST_BITS + MAX_PPB_BITS should
+ * be less than 63.
+ */
+#define	PPB_EXTRA_BITS		2
+
+/* Precalculate scale word to avoid long long division at runtime */
+#define	PPB_SCALE_WORD	((1LL << (PPB_EXTRA_BITS + MC_CMD_PTP_IN_ADJUST_BITS +\
+			MAX_PPB_BITS)) / 1000000000LL)
+
+#define PTP_SYNC_ATTEMPTS	4
+
+/**
+ * struct efx_ptp_match - Matching structure, stored in sk_buff's cb area.
+ * @words: UUID and (partial) sequence number
+ * @expiry: Time after which the packet should be delivered irrespective of
+ *            event arrival.
+ * @state: The state of the packet - whether it is ready for processing or
+ *         whether that is of no interest.
+ */
+struct efx_ptp_match {
+	u32 words[DIV_ROUND_UP(PTP_V1_UUID_LENGTH, 4)];
+	unsigned long expiry;
+	enum ptp_packet_state state;
+};
+
+/**
+ * struct efx_ptp_event_rx - A PTP receive event (from MC)
+ * @seq0: First part of (PTP) UUID
+ * @seq1: Second part of (PTP) UUID and sequence number
+ * @hwtimestamp: Event timestamp
+ */
+struct efx_ptp_event_rx {
+	struct list_head link;
+	u32 seq0;
+	u32 seq1;
+	ktime_t hwtimestamp;
+	unsigned long expiry;
+};
+
+/**
+ * struct efx_ptp_timeset - Synchronisation between host and MC
+ * @host_start: Host time immediately before hardware timestamp taken
+ * @seconds: Hardware timestamp, seconds
+ * @nanoseconds: Hardware timestamp, nanoseconds
+ * @host_end: Host time immediately after hardware timestamp taken
+ * @waitns: Number of nanoseconds between hardware timestamp being read and
+ *          host end time being seen
+ * @window: Difference of host_end and host_start
+ * @valid: Whether this timeset is valid
+ */
+struct efx_ptp_timeset {
+	u32 host_start;
+	u32 seconds;
+	u32 nanoseconds;
+	u32 host_end;
+	u32 waitns;
+	u32 window;	/* Derived: end - start, allowing for wrap */
+};
+
+/**
+ * struct efx_ptp_data - Precision Time Protocol (PTP) state
+ * @channel: The PTP channel
+ * @rxq: Receive queue (awaiting timestamps)
+ * @txq: Transmit queue
+ * @evt_list: List of MC receive events awaiting packets
+ * @evt_free_list: List of free events
+ * @evt_lock: Lock for manipulating evt_list and evt_free_list
+ * @rx_evts: Instantiated events (on evt_list and evt_free_list)
+ * @workwq: Work queue for processing pending PTP operations
+ * @work: Work task
+ * @reset_required: A serious error has occurred and the PTP task needs to be
+ *                  reset (disable, enable).
+ * @rxfilter_event: Receive filter when operating
+ * @rxfilter_general: Receive filter when operating
+ * @config: Current timestamp configuration
+ * @enabled: PTP operation enabled
+ * @mode: Mode in which PTP operating (PTP version)
+ * @evt_frags: Partly assembled PTP events
+ * @evt_frag_idx: Current fragment number
+ * @evt_code: Last event code
+ * @start: Address at which MC indicates ready for synchronisation
+ * @host_time_pps: Host time at last PPS
+ * @last_sync_ns: Last number of nanoseconds between readings when synchronising
+ * @base_sync_ns: Number of nanoseconds for last synchronisation.
+ * @base_sync_valid: Whether base_sync_time is valid.
+ * @current_adjfreq: Current ppb adjustment.
+ * @phc_clock: Pointer to registered phc device
+ * @phc_clock_info: Registration structure for phc device
+ * @pps_work: pps work task for handling pps events
+ * @pps_workwq: pps work queue
+ * @nic_ts_enabled: Flag indicating if NIC generated TS events are handled
+ * @txbuf: Buffer for use when transmitting (PTP) packets to MC (avoids
+ *         allocations in main data path).
+ * @debug_ptp_dir: PTP debugfs directory
+ * @missed_rx_sync: Number of packets received without syncrhonisation.
+ * @good_syncs: Number of successful synchronisations.
+ * @no_time_syncs: Number of synchronisations with no good times.
+ * @bad_sync_durations: Number of synchronisations with bad durations.
+ * @bad_syncs: Number of failed synchronisations.
+ * @last_sync_time: Number of nanoseconds for last synchronisation.
+ * @sync_timeouts: Number of synchronisation timeouts
+ * @fast_syncs: Number of synchronisations requiring short delay
+ * @min_sync_delta: Minimum time between event and synchronisation
+ * @max_sync_delta: Maximum time between event and synchronisation
+ * @average_sync_delta: Average time between event and synchronisation.
+ *                      Modified moving average.
+ * @last_sync_delta: Last time between event and synchronisation
+ * @mc_stats: Context value for MC statistics
+ * @timeset: Last set of synchronisation statistics.
+ */
+struct efx_ptp_data {
+	struct efx_channel *channel;
+	struct sk_buff_head rxq;
+	struct sk_buff_head txq;
+	struct list_head evt_list;
+	struct list_head evt_free_list;
+	spinlock_t evt_lock;
+	struct efx_ptp_event_rx rx_evts[MAX_RECEIVE_EVENTS];
+	struct workqueue_struct *workwq;
+	struct work_struct work;
+	bool reset_required;
+	u32 rxfilter_event;
+	u32 rxfilter_general;
+	bool rxfilter_installed;
+	struct hwtstamp_config config;
+	bool enabled;
+	unsigned int mode;
+	efx_qword_t evt_frags[MAX_EVENT_FRAGS];
+	int evt_frag_idx;
+	int evt_code;
+	struct efx_buffer start;
+	struct pps_event_time host_time_pps;
+	unsigned last_sync_ns;
+	unsigned base_sync_ns;
+	bool base_sync_valid;
+	s64 current_adjfreq;
+	struct ptp_clock *phc_clock;
+	struct ptp_clock_info phc_clock_info;
+	struct work_struct pps_work;
+	struct workqueue_struct *pps_workwq;
+	bool nic_ts_enabled;
+	u8 txbuf[ALIGN(MC_CMD_PTP_IN_TRANSMIT_LEN(
+			       MC_CMD_PTP_IN_TRANSMIT_PACKET_MAXNUM), 4)];
+	struct efx_ptp_timeset
+	timeset[MC_CMD_PTP_OUT_SYNCHRONIZE_TIMESET_MAXNUM];
+};
+
+static int efx_phc_adjfreq(struct ptp_clock_info *ptp, s32 delta);
+static int efx_phc_adjtime(struct ptp_clock_info *ptp, s64 delta);
+static int efx_phc_gettime(struct ptp_clock_info *ptp, struct timespec *ts);
+static int efx_phc_settime(struct ptp_clock_info *ptp,
+			   const struct timespec *e_ts);
+static int efx_phc_enable(struct ptp_clock_info *ptp,
+			  struct ptp_clock_request *request, int on);
+
+/* Enable MCDI PTP support. */
+static int efx_ptp_enable(struct efx_nic *efx)
+{
+	u8 inbuf[MC_CMD_PTP_IN_ENABLE_LEN];
+
+	MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_ENABLE);
+	MCDI_SET_DWORD(inbuf, PTP_IN_ENABLE_QUEUE,
+		       efx->ptp_data->channel->channel);
+	MCDI_SET_DWORD(inbuf, PTP_IN_ENABLE_MODE, efx->ptp_data->mode);
+
+	return efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
+			    NULL, 0, NULL);
+}
+
+/* Disable MCDI PTP support.
+ *
+ * Note that this function should never rely on the presence of ptp_data -
+ * may be called before that exists.
+ */
+static int efx_ptp_disable(struct efx_nic *efx)
+{
+	u8 inbuf[MC_CMD_PTP_IN_DISABLE_LEN];
+
+	MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_DISABLE);
+	return efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
+			    NULL, 0, NULL);
+}
+
+static void efx_ptp_deliver_rx_queue(struct sk_buff_head *q)
+{
+	struct sk_buff *skb;
+
+	while ((skb = skb_dequeue(q))) {
+		local_bh_disable();
+		netif_receive_skb(skb);
+		local_bh_enable();
+	}
+}
+
+static void efx_ptp_handle_no_channel(struct efx_nic *efx)
+{
+	netif_err(efx, drv, efx->net_dev,
+		  "ERROR: PTP requires MSI-X and 1 additional interrupt"
+		  "vector. PTP disabled\n");
+}
+
+/* Repeatedly send the host time to the MC which will capture the hardware
+ * time.
+ */
+static void efx_ptp_send_times(struct efx_nic *efx,
+			       struct pps_event_time *last_time)
+{
+	struct pps_event_time now;
+	struct timespec limit;
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	struct timespec start;
+	int *mc_running = ptp->start.addr;
+
+	pps_get_ts(&now);
+	start = now.ts_real;
+	limit = now.ts_real;
+	timespec_add_ns(&limit, SYNCHRONISE_PERIOD_NS);
+
+	/* Write host time for specified period or until MC is done */
+	while ((timespec_compare(&now.ts_real, &limit) < 0) &&
+	       ACCESS_ONCE(*mc_running)) {
+		struct timespec update_time;
+		unsigned int host_time;
+
+		/* Don't update continuously to avoid saturating the PCIe bus */
+		update_time = now.ts_real;
+		timespec_add_ns(&update_time, SYNCHRONISATION_GRANULARITY_NS);
+		do {
+			pps_get_ts(&now);
+		} while ((timespec_compare(&now.ts_real, &update_time) < 0) &&
+			 ACCESS_ONCE(*mc_running));
+
+		/* Synchronise NIC with single word of time only */
+		host_time = (now.ts_real.tv_sec << MC_NANOSECOND_BITS |
+			     now.ts_real.tv_nsec);
+		/* Update host time in NIC memory */
+		_efx_writed(efx, cpu_to_le32(host_time),
+			    FR_CZ_MC_TREG_SMEM + MC_SMEM_P0_PTP_TIME_OFST);
+	}
+	*last_time = now;
+}
+
+/* Read a timeset from the MC's results and partial process. */
+static void efx_ptp_read_timeset(u8 *data, struct efx_ptp_timeset *timeset)
+{
+	unsigned start_ns, end_ns;
+
+	timeset->host_start = MCDI_DWORD(data, PTP_OUT_SYNCHRONIZE_HOSTSTART);
+	timeset->seconds = MCDI_DWORD(data, PTP_OUT_SYNCHRONIZE_SECONDS);
+	timeset->nanoseconds = MCDI_DWORD(data,
+					 PTP_OUT_SYNCHRONIZE_NANOSECONDS);
+	timeset->host_end = MCDI_DWORD(data, PTP_OUT_SYNCHRONIZE_HOSTEND),
+	timeset->waitns = MCDI_DWORD(data, PTP_OUT_SYNCHRONIZE_WAITNS);
+
+	/* Ignore seconds */
+	start_ns = timeset->host_start & MC_NANOSECOND_MASK;
+	end_ns = timeset->host_end & MC_NANOSECOND_MASK;
+	/* Allow for rollover */
+	if (end_ns < start_ns)
+		end_ns += NSEC_PER_SEC;
+	/* Determine duration of operation */
+	timeset->window = end_ns - start_ns;
+}
+
+/* Process times received from MC.
+ *
+ * Extract times from returned results, and establish the minimum value
+ * seen.  The minimum value represents the "best" possible time and events
+ * too much greater than this are rejected - the machine is, perhaps, too
+ * busy. A number of readings are taken so that, hopefully, at least one good
+ * synchronisation will be seen in the results.
+ */
+static int efx_ptp_process_times(struct efx_nic *efx, u8 *synch_buf,
+				 size_t response_length,
+				 const struct pps_event_time *last_time)
+{
+	unsigned number_readings = (response_length /
+			       MC_CMD_PTP_OUT_SYNCHRONIZE_TIMESET_LEN);
+	unsigned i;
+	unsigned min;
+	unsigned min_set = 0;
+	unsigned total;
+	unsigned ngood = 0;
+	unsigned last_good = 0;
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	bool min_valid = false;
+	u32 last_sec;
+	u32 start_sec;
+	struct timespec delta;
+
+	if (number_readings == 0)
+		return -EAGAIN;
+
+	/* Find minimum value in this set of results, discarding clearly
+	 * erroneous results.
+	 */
+	for (i = 0; i < number_readings; i++) {
+		efx_ptp_read_timeset(synch_buf, &ptp->timeset[i]);
+		synch_buf += MC_CMD_PTP_OUT_SYNCHRONIZE_TIMESET_LEN;
+		if (ptp->timeset[i].window > SYNCHRONISATION_GRANULARITY_NS) {
+			if (min_valid) {
+				if (ptp->timeset[i].window < min_set)
+					min_set = ptp->timeset[i].window;
+			} else {
+				min_valid = true;
+				min_set = ptp->timeset[i].window;
+			}
+		}
+	}
+
+	if (min_valid) {
+		if (ptp->base_sync_valid && (min_set > ptp->base_sync_ns))
+			min = ptp->base_sync_ns;
+		else
+			min = min_set;
+	} else {
+		min = SYNCHRONISATION_GRANULARITY_NS;
+	}
+
+	/* Discard excessively long synchronise durations.  The MC times
+	 * when it finishes reading the host time so the corrected window
+	 * time should be fairly constant for a given platform.
+	 */
+	total = 0;
+	for (i = 0; i < number_readings; i++)
+		if (ptp->timeset[i].window > ptp->timeset[i].waitns) {
+			unsigned win;
+
+			win = ptp->timeset[i].window - ptp->timeset[i].waitns;
+			if (win >= MIN_SYNCHRONISATION_NS &&
+			    win < MAX_SYNCHRONISATION_NS) {
+				total += ptp->timeset[i].window;
+				ngood++;
+				last_good = i;
+			}
+		}
+
+	if (ngood == 0) {
+		netif_warn(efx, drv, efx->net_dev,
+			   "PTP no suitable synchronisations %dns %dns\n",
+			   ptp->base_sync_ns, min_set);
+		return -EAGAIN;
+	}
+
+	/* Average minimum this synchronisation */
+	ptp->last_sync_ns = DIV_ROUND_UP(total, ngood);
+	if (!ptp->base_sync_valid || (ptp->last_sync_ns < ptp->base_sync_ns)) {
+		ptp->base_sync_valid = true;
+		ptp->base_sync_ns = ptp->last_sync_ns;
+	}
+
+	/* Calculate delay from actual PPS to last_time */
+	delta.tv_nsec =
+		ptp->timeset[last_good].nanoseconds +
+		last_time->ts_real.tv_nsec -
+		(ptp->timeset[last_good].host_start & MC_NANOSECOND_MASK);
+
+	/* It is possible that the seconds rolled over between taking
+	 * the start reading and the last value written by the host.  The
+	 * timescales are such that a gap of more than one second is never
+	 * expected.
+	 */
+	start_sec = ptp->timeset[last_good].host_start >> MC_NANOSECOND_BITS;
+	last_sec = last_time->ts_real.tv_sec & MC_SECOND_MASK;
+	if (start_sec != last_sec) {
+		if (((start_sec + 1) & MC_SECOND_MASK) != last_sec) {
+			netif_warn(efx, hw, efx->net_dev,
+				   "PTP bad synchronisation seconds\n");
+			return -EAGAIN;
+		} else {
+			delta.tv_sec = 1;
+		}
+	} else {
+		delta.tv_sec = 0;
+	}
+
+	ptp->host_time_pps = *last_time;
+	pps_sub_ts(&ptp->host_time_pps, delta);
+
+	return 0;
+}
+
+/* Synchronize times between the host and the MC */
+static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	u8 synch_buf[MC_CMD_PTP_OUT_SYNCHRONIZE_LENMAX];
+	size_t response_length;
+	int rc;
+	unsigned long timeout;
+	struct pps_event_time last_time = {};
+	unsigned int loops = 0;
+	int *start = ptp->start.addr;
+
+	MCDI_SET_DWORD(synch_buf, PTP_IN_OP, MC_CMD_PTP_OP_SYNCHRONIZE);
+	MCDI_SET_DWORD(synch_buf, PTP_IN_SYNCHRONIZE_NUMTIMESETS,
+		       num_readings);
+	MCDI_SET_DWORD(synch_buf, PTP_IN_SYNCHRONIZE_START_ADDR_LO,
+		       (u32)ptp->start.dma_addr);
+	MCDI_SET_DWORD(synch_buf, PTP_IN_SYNCHRONIZE_START_ADDR_HI,
+		       (u32)((u64)ptp->start.dma_addr >> 32));
+
+	/* Clear flag that signals MC ready */
+	ACCESS_ONCE(*start) = 0;
+	efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
+			   MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
+
+	/* Wait for start from MCDI (or timeout) */
+	timeout = jiffies + msecs_to_jiffies(MAX_SYNCHRONISE_WAIT_MS);
+	while (!ACCESS_ONCE(*start) && (time_before(jiffies, timeout))) {
+		udelay(20);	/* Usually start MCDI execution quickly */
+		loops++;
+	}
+
+	if (ACCESS_ONCE(*start))
+		efx_ptp_send_times(efx, &last_time);
+
+	/* Collect results */
+	rc = efx_mcdi_rpc_finish(efx, MC_CMD_PTP,
+				 MC_CMD_PTP_IN_SYNCHRONIZE_LEN,
+				 synch_buf, sizeof(synch_buf),
+				 &response_length);
+	if (rc == 0)
+		rc = efx_ptp_process_times(efx, synch_buf, response_length,
+					   &last_time);
+
+	return rc;
+}
+
+/* Transmit a PTP packet, via the MCDI interface, to the wire. */
+static int efx_ptp_xmit_skb(struct efx_nic *efx, struct sk_buff *skb)
+{
+	u8 *txbuf = efx->ptp_data->txbuf;
+	struct skb_shared_hwtstamps timestamps;
+	int rc = -EIO;
+	/* MCDI driver requires word aligned lengths */
+	size_t len = ALIGN(MC_CMD_PTP_IN_TRANSMIT_LEN(skb->len), 4);
+	u8 txtime[MC_CMD_PTP_OUT_TRANSMIT_LEN];
+
+	MCDI_SET_DWORD(txbuf, PTP_IN_OP, MC_CMD_PTP_OP_TRANSMIT);
+	MCDI_SET_DWORD(txbuf, PTP_IN_TRANSMIT_LENGTH, skb->len);
+	if (skb_shinfo(skb)->nr_frags != 0) {
+		rc = skb_linearize(skb);
+		if (rc != 0)
+			goto fail;
+	}
+
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		rc = skb_checksum_help(skb);
+		if (rc != 0)
+			goto fail;
+	}
+	skb_copy_from_linear_data(skb,
+				  &txbuf[MC_CMD_PTP_IN_TRANSMIT_PACKET_OFST],
+				  len);
+	rc = efx_mcdi_rpc(efx, MC_CMD_PTP, txbuf, len, txtime,
+			  sizeof(txtime), &len);
+	if (rc != 0)
+		goto fail;
+
+	memset(&timestamps, 0, sizeof(timestamps));
+	timestamps.hwtstamp = ktime_set(
+		MCDI_DWORD(txtime, PTP_OUT_TRANSMIT_SECONDS),
+		MCDI_DWORD(txtime, PTP_OUT_TRANSMIT_NANOSECONDS));
+
+	skb_tstamp_tx(skb, &timestamps);
+
+	rc = 0;
+
+fail:
+	dev_kfree_skb(skb);
+
+	return rc;
+}
+
+static void efx_ptp_drop_time_expired_events(struct efx_nic *efx)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	struct list_head *cursor;
+	struct list_head *next;
+
+	/* Drop time-expired events */
+	spin_lock_bh(&ptp->evt_lock);
+	if (!list_empty(&ptp->evt_list)) {
+		list_for_each_safe(cursor, next, &ptp->evt_list) {
+			struct efx_ptp_event_rx *evt;
+
+			evt = list_entry(cursor, struct efx_ptp_event_rx,
+					 link);
+			if (time_after(jiffies, evt->expiry)) {
+				list_del(&evt->link);
+				list_add(&evt->link, &ptp->evt_free_list);
+				netif_warn(efx, hw, efx->net_dev,
+					   "PTP rx event dropped\n");
+			}
+		}
+	}
+	spin_unlock_bh(&ptp->evt_lock);
+}
+
+static enum ptp_packet_state efx_ptp_match_rx(struct efx_nic *efx,
+					      struct sk_buff *skb)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	bool evts_waiting;
+	struct list_head *cursor;
+	struct list_head *next;
+	struct efx_ptp_match *match;
+	enum ptp_packet_state rc = PTP_PACKET_STATE_UNMATCHED;
+
+	spin_lock_bh(&ptp->evt_lock);
+	evts_waiting = !list_empty(&ptp->evt_list);
+	spin_unlock_bh(&ptp->evt_lock);
+
+	if (!evts_waiting)
+		return PTP_PACKET_STATE_UNMATCHED;
+
+	match = (struct efx_ptp_match *)skb->cb;
+	/* Look for a matching timestamp in the event queue */
+	spin_lock_bh(&ptp->evt_lock);
+	list_for_each_safe(cursor, next, &ptp->evt_list) {
+		struct efx_ptp_event_rx *evt;
+
+		evt = list_entry(cursor, struct efx_ptp_event_rx, link);
+		if ((evt->seq0 == match->words[0]) &&
+		    (evt->seq1 == match->words[1])) {
+			struct skb_shared_hwtstamps *timestamps;
+
+			/* Match - add in hardware timestamp */
+			timestamps = skb_hwtstamps(skb);
+			timestamps->hwtstamp = evt->hwtimestamp;
+
+			match->state = PTP_PACKET_STATE_MATCHED;
+			rc = PTP_PACKET_STATE_MATCHED;
+			list_del(&evt->link);
+			list_add(&evt->link, &ptp->evt_free_list);
+			break;
+		}
+	}
+	spin_unlock_bh(&ptp->evt_lock);
+
+	return rc;
+}
+
+/* Process any queued receive events and corresponding packets
+ *
+ * q is returned with all the packets that are ready for delivery.
+ * true is returned if at least one of those packets requires
+ * synchronisation.
+ */
+static bool efx_ptp_process_events(struct efx_nic *efx, struct sk_buff_head *q)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	bool rc = false;
+	struct sk_buff *skb;
+
+	while ((skb = skb_dequeue(&ptp->rxq))) {
+		struct efx_ptp_match *match;
+
+		match = (struct efx_ptp_match *)skb->cb;
+		if (match->state == PTP_PACKET_STATE_MATCH_UNWANTED) {
+			__skb_queue_tail(q, skb);
+		} else if (efx_ptp_match_rx(efx, skb) ==
+			   PTP_PACKET_STATE_MATCHED) {
+			rc = true;
+			__skb_queue_tail(q, skb);
+		} else if (time_after(jiffies, match->expiry)) {
+			match->state = PTP_PACKET_STATE_TIMED_OUT;
+			netif_warn(efx, rx_err, efx->net_dev,
+				   "PTP packet - no timestamp seen\n");
+			__skb_queue_tail(q, skb);
+		} else {
+			/* Replace unprocessed entry and stop */
+			skb_queue_head(&ptp->rxq, skb);
+			break;
+		}
+	}
+
+	return rc;
+}
+
+/* Complete processing of a received packet */
+static inline void efx_ptp_process_rx(struct efx_nic *efx, struct sk_buff *skb)
+{
+	local_bh_disable();
+	netif_receive_skb(skb);
+	local_bh_enable();
+}
+
+static int efx_ptp_start(struct efx_nic *efx)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	struct efx_filter_spec rxfilter;
+	int rc;
+
+	ptp->reset_required = false;
+
+	/* Must filter on both event and general ports to ensure
+	 * that there is no packet re-ordering.
+	 */
+	efx_filter_init_rx(&rxfilter, EFX_FILTER_PRI_REQUIRED, 0,
+			   efx_rx_queue_index(
+				   efx_channel_get_rx_queue(ptp->channel)));
+	rc = efx_filter_set_ipv4_local(&rxfilter, IPPROTO_UDP,
+				       htonl(PTP_ADDRESS),
+				       htons(PTP_EVENT_PORT));
+	if (rc != 0)
+		return rc;
+
+	rc = efx_filter_insert_filter(efx, &rxfilter, true);
+	if (rc < 0)
+		return rc;
+	ptp->rxfilter_event = rc;
+
+	efx_filter_init_rx(&rxfilter, EFX_FILTER_PRI_REQUIRED, 0,
+			   efx_rx_queue_index(
+				   efx_channel_get_rx_queue(ptp->channel)));
+	rc = efx_filter_set_ipv4_local(&rxfilter, IPPROTO_UDP,
+				       htonl(PTP_ADDRESS),
+				       htons(PTP_GENERAL_PORT));
+	if (rc != 0)
+		goto fail;
+
+	rc = efx_filter_insert_filter(efx, &rxfilter, true);
+	if (rc < 0)
+		goto fail;
+	ptp->rxfilter_general = rc;
+
+	rc = efx_ptp_enable(efx);
+	if (rc != 0)
+		goto fail2;
+
+	ptp->evt_frag_idx = 0;
+	ptp->current_adjfreq = 0;
+	ptp->rxfilter_installed = true;
+
+	return 0;
+
+fail2:
+	efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_REQUIRED,
+				  ptp->rxfilter_general);
+fail:
+	efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_REQUIRED,
+				  ptp->rxfilter_event);
+
+	return rc;
+}
+
+static int efx_ptp_stop(struct efx_nic *efx)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	int rc = efx_ptp_disable(efx);
+	struct list_head *cursor;
+	struct list_head *next;
+
+	if (ptp->rxfilter_installed) {
+		efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_REQUIRED,
+					  ptp->rxfilter_general);
+		efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_REQUIRED,
+					  ptp->rxfilter_event);
+		ptp->rxfilter_installed = false;
+	}
+
+	/* Make sure RX packets are really delivered */
+	efx_ptp_deliver_rx_queue(&efx->ptp_data->rxq);
+	skb_queue_purge(&efx->ptp_data->txq);
+
+	/* Drop any pending receive events */
+	spin_lock_bh(&efx->ptp_data->evt_lock);
+	list_for_each_safe(cursor, next, &efx->ptp_data->evt_list) {
+		list_del(cursor);
+		list_add(cursor, &efx->ptp_data->evt_free_list);
+	}
+	spin_unlock_bh(&efx->ptp_data->evt_lock);
+
+	return rc;
+}
+
+static void efx_ptp_pps_worker(struct work_struct *work)
+{
+	struct efx_ptp_data *ptp =
+		container_of(work, struct efx_ptp_data, pps_work);
+	struct efx_nic *efx = ptp->channel->efx;
+	struct ptp_clock_event ptp_evt;
+
+	if (efx_ptp_synchronize(efx, PTP_SYNC_ATTEMPTS))
+		return;
+
+	ptp_evt.type = PTP_CLOCK_PPSUSR;
+	ptp_evt.pps_times = ptp->host_time_pps;
+	ptp_clock_event(ptp->phc_clock, &ptp_evt);
+}
+
+/* Process any pending transmissions and timestamp any received packets.
+ */
+static void efx_ptp_worker(struct work_struct *work)
+{
+	struct efx_ptp_data *ptp_data =
+		container_of(work, struct efx_ptp_data, work);
+	struct efx_nic *efx = ptp_data->channel->efx;
+	struct sk_buff *skb;
+	struct sk_buff_head tempq;
+
+	if (ptp_data->reset_required) {
+		efx_ptp_stop(efx);
+		efx_ptp_start(efx);
+		return;
+	}
+
+	efx_ptp_drop_time_expired_events(efx);
+
+	__skb_queue_head_init(&tempq);
+	if (efx_ptp_process_events(efx, &tempq) ||
+	    !skb_queue_empty(&ptp_data->txq)) {
+
+		while ((skb = skb_dequeue(&ptp_data->txq)))
+			efx_ptp_xmit_skb(efx, skb);
+	}
+
+	while ((skb = __skb_dequeue(&tempq)))
+		efx_ptp_process_rx(efx, skb);
+}
+
+/* Initialise PTP channel and state.
+ *
+ * Setting core_index to zero causes the queue to be initialised and doesn't
+ * overlap with 'rxq0' because ptp.c doesn't use skb_record_rx_queue.
+ */
+static int efx_ptp_probe_channel(struct efx_channel *channel)
+{
+	struct efx_nic *efx = channel->efx;
+	struct efx_ptp_data *ptp;
+	int rc = 0;
+	unsigned int pos;
+
+	channel->irq_moderation = 0;
+	channel->rx_queue.core_index = 0;
+
+	ptp = kzalloc(sizeof(struct efx_ptp_data), GFP_KERNEL);
+	efx->ptp_data = ptp;
+	if (!efx->ptp_data)
+		return -ENOMEM;
+
+	rc = efx_nic_alloc_buffer(efx, &ptp->start, sizeof(int));
+	if (rc != 0)
+		goto fail1;
+
+	ptp->channel = channel;
+	skb_queue_head_init(&ptp->rxq);
+	skb_queue_head_init(&ptp->txq);
+	ptp->workwq = create_singlethread_workqueue("sfc_ptp");
+	if (!ptp->workwq) {
+		rc = -ENOMEM;
+		goto fail2;
+	}
+
+	INIT_WORK(&ptp->work, efx_ptp_worker);
+	ptp->config.flags = 0;
+	ptp->config.tx_type = HWTSTAMP_TX_OFF;
+	ptp->config.rx_filter = HWTSTAMP_FILTER_NONE;
+	INIT_LIST_HEAD(&ptp->evt_list);
+	INIT_LIST_HEAD(&ptp->evt_free_list);
+	spin_lock_init(&ptp->evt_lock);
+	for (pos = 0; pos < MAX_RECEIVE_EVENTS; pos++)
+		list_add(&ptp->rx_evts[pos].link, &ptp->evt_free_list);
+
+	ptp->phc_clock_info.owner = THIS_MODULE;
+	snprintf(ptp->phc_clock_info.name,
+		 sizeof(ptp->phc_clock_info.name),
+		 "%pm", efx->net_dev->perm_addr);
+	ptp->phc_clock_info.max_adj = MAX_PPB;
+	ptp->phc_clock_info.n_alarm = 0;
+	ptp->phc_clock_info.n_ext_ts = 0;
+	ptp->phc_clock_info.n_per_out = 0;
+	ptp->phc_clock_info.pps = 1;
+	ptp->phc_clock_info.adjfreq = efx_phc_adjfreq;
+	ptp->phc_clock_info.adjtime = efx_phc_adjtime;
+	ptp->phc_clock_info.gettime = efx_phc_gettime;
+	ptp->phc_clock_info.settime = efx_phc_settime;
+	ptp->phc_clock_info.enable = efx_phc_enable;
+
+	ptp->phc_clock = ptp_clock_register(&ptp->phc_clock_info,
+					    &efx->pci_dev->dev);
+	if (!ptp->phc_clock)
+		goto fail3;
+
+	INIT_WORK(&ptp->pps_work, efx_ptp_pps_worker);
+	ptp->pps_workwq = create_singlethread_workqueue("sfc_pps");
+	if (!ptp->pps_workwq) {
+		rc = -ENOMEM;
+		goto fail4;
+	}
+	ptp->nic_ts_enabled = false;
+
+	return 0;
+fail4:
+	ptp_clock_unregister(efx->ptp_data->phc_clock);
+
+fail3:
+	destroy_workqueue(efx->ptp_data->workwq);
+
+fail2:
+	efx_nic_free_buffer(efx, &ptp->start);
+
+fail1:
+	kfree(efx->ptp_data);
+	efx->ptp_data = NULL;
+
+	return rc;
+}
+
+static void efx_ptp_remove_channel(struct efx_channel *channel)
+{
+	struct efx_nic *efx = channel->efx;
+
+	if (!efx->ptp_data)
+		return;
+
+	(void)efx_ptp_disable(channel->efx);
+
+	cancel_work_sync(&efx->ptp_data->work);
+	cancel_work_sync(&efx->ptp_data->pps_work);
+
+	skb_queue_purge(&efx->ptp_data->rxq);
+	skb_queue_purge(&efx->ptp_data->txq);
+
+	ptp_clock_unregister(efx->ptp_data->phc_clock);
+
+	destroy_workqueue(efx->ptp_data->workwq);
+	destroy_workqueue(efx->ptp_data->pps_workwq);
+
+	efx_nic_free_buffer(efx, &efx->ptp_data->start);
+	kfree(efx->ptp_data);
+}
+
+static void efx_ptp_get_channel_name(struct efx_channel *channel,
+				     char *buf, size_t len)
+{
+	snprintf(buf, len, "%s-ptp", channel->efx->name);
+}
+
+/* Determine whether this packet should be processed by the PTP module
+ * or transmitted conventionally.
+ */
+bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb)
+{
+	return efx->ptp_data &&
+		efx->ptp_data->enabled &&
+		skb->len >= PTP_MIN_LENGTH &&
+		skb->len <= MC_CMD_PTP_IN_TRANSMIT_PACKET_MAXNUM &&
+		likely(skb->protocol == htons(ETH_P_IP)) &&
+		ip_hdr(skb)->protocol == IPPROTO_UDP &&
+		udp_hdr(skb)->dest == htons(PTP_EVENT_PORT);
+}
+
+/* Receive a PTP packet.  Packets are queued until the arrival of
+ * the receive timestamp from the MC - this will probably occur after the
+ * packet arrival because of the processing in the MC.
+ */
+static void efx_ptp_rx(struct efx_channel *channel, struct sk_buff *skb)
+{
+	struct efx_nic *efx = channel->efx;
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	struct efx_ptp_match *match = (struct efx_ptp_match *)skb->cb;
+	u8 *data;
+	unsigned int version;
+
+	match->expiry = jiffies + msecs_to_jiffies(PKT_EVENT_LIFETIME_MS);
+
+	/* Correct version? */
+	if (ptp->mode == MC_CMD_PTP_MODE_V1) {
+		if (skb->len < PTP_V1_MIN_LENGTH) {
+			netif_receive_skb(skb);
+			return;
+		}
+		version = ntohs(*(__be16 *)&skb->data[PTP_V1_VERSION_OFFSET]);
+		if (version != PTP_VERSION_V1) {
+			netif_receive_skb(skb);
+			return;
+		}
+	} else {
+		if (skb->len < PTP_V2_MIN_LENGTH) {
+			netif_receive_skb(skb);
+			return;
+		}
+		version = skb->data[PTP_V2_VERSION_OFFSET];
+
+		BUG_ON(ptp->mode != MC_CMD_PTP_MODE_V2);
+		BUILD_BUG_ON(PTP_V1_UUID_OFFSET != PTP_V2_MC_UUID_OFFSET);
+		BUILD_BUG_ON(PTP_V1_UUID_LENGTH != PTP_V2_MC_UUID_LENGTH);
+		BUILD_BUG_ON(PTP_V1_SEQUENCE_OFFSET != PTP_V2_SEQUENCE_OFFSET);
+		BUILD_BUG_ON(PTP_V1_SEQUENCE_LENGTH != PTP_V2_SEQUENCE_LENGTH);
+
+		if ((version & PTP_VERSION_V2_MASK) != PTP_VERSION_V2) {
+			netif_receive_skb(skb);
+			return;
+		}
+	}
+
+	/* Does this packet require timestamping? */
+	if (ntohs(*(__be16 *)&skb->data[PTP_DPORT_OFFSET]) == PTP_EVENT_PORT) {
+		struct skb_shared_hwtstamps *timestamps;
+
+		match->state = PTP_PACKET_STATE_UNMATCHED;
+
+		/* Clear all timestamps held: filled in later */
+		timestamps = skb_hwtstamps(skb);
+		memset(timestamps, 0, sizeof(*timestamps));
+
+		/* Extract UUID/Sequence information */
+		data = skb->data + PTP_V1_UUID_OFFSET;
+		match->words[0] = (data[0]         |
+				   (data[1] << 8)  |
+				   (data[2] << 16) |
+				   (data[3] << 24));
+		match->words[1] = (data[4]         |
+				   (data[5] << 8)  |
+				   (skb->data[PTP_V1_SEQUENCE_OFFSET +
+					      PTP_V1_SEQUENCE_LENGTH - 1] <<
+				    16));
+	} else {
+		match->state = PTP_PACKET_STATE_MATCH_UNWANTED;
+	}
+
+	skb_queue_tail(&ptp->rxq, skb);
+	queue_work(ptp->workwq, &ptp->work);
+}
+
+/* Transmit a PTP packet.  This has to be transmitted by the MC
+ * itself, through an MCDI call.  MCDI calls aren't permitted
+ * in the transmit path so defer the actual transmission to a suitable worker.
+ */
+int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+
+	skb_queue_tail(&ptp->txq, skb);
+
+	if ((udp_hdr(skb)->dest == htons(PTP_EVENT_PORT)) &&
+	    (skb->len <= MC_CMD_PTP_IN_TRANSMIT_PACKET_MAXNUM))
+		efx_xmit_hwtstamp_pending(skb);
+	queue_work(ptp->workwq, &ptp->work);
+
+	return NETDEV_TX_OK;
+}
+
+static int efx_ptp_change_mode(struct efx_nic *efx, bool enable_wanted,
+			       unsigned int new_mode)
+{
+	if ((enable_wanted != efx->ptp_data->enabled) ||
+	    (enable_wanted && (efx->ptp_data->mode != new_mode))) {
+		int rc;
+
+		if (enable_wanted) {
+			/* Change of mode requires disable */
+			if (efx->ptp_data->enabled &&
+			    (efx->ptp_data->mode != new_mode)) {
+				efx->ptp_data->enabled = false;
+				rc = efx_ptp_stop(efx);
+				if (rc != 0)
+					return rc;
+			}
+
+			/* Set new operating mode and establish
+			 * baseline synchronisation, which must
+			 * succeed.
+			 */
+			efx->ptp_data->mode = new_mode;
+			rc = efx_ptp_start(efx);
+			if (rc == 0) {
+				rc = efx_ptp_synchronize(efx,
+							 PTP_SYNC_ATTEMPTS * 2);
+				if (rc != 0)
+					efx_ptp_stop(efx);
+			}
+		} else {
+			rc = efx_ptp_stop(efx);
+		}
+
+		if (rc != 0)
+			return rc;
+
+		efx->ptp_data->enabled = enable_wanted;
+	}
+
+	return 0;
+}
+
+static int efx_ptp_ts_init(struct efx_nic *efx, struct hwtstamp_config *init)
+{
+	bool enable_wanted = false;
+	unsigned int new_mode;
+	int rc;
+
+	if (init->flags)
+		return -EINVAL;
+
+	if ((init->tx_type != HWTSTAMP_TX_OFF) &&
+	    (init->tx_type != HWTSTAMP_TX_ON))
+		return -ERANGE;
+
+	new_mode = efx->ptp_data->mode;
+	/* Determine whether any PTP HW operations are required */
+	switch (init->rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+		init->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
+		new_mode = MC_CMD_PTP_MODE_V1;
+		enable_wanted = true;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+	/* Although these three are accepted only IPV4 packets will be
+	 * timestamped
+	 */
+		init->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
+		new_mode = MC_CMD_PTP_MODE_V2;
+		enable_wanted = true;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+		/* Non-IP + IPv6 timestamping not supported */
+		return -ERANGE;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	if (init->tx_type != HWTSTAMP_TX_OFF)
+		enable_wanted = true;
+
+	rc = efx_ptp_change_mode(efx, enable_wanted, new_mode);
+	if (rc != 0)
+		return rc;
+
+	efx->ptp_data->config = *init;
+
+	return 0;
+}
+
+int
+efx_ptp_get_ts_info(struct net_device *net_dev, struct ethtool_ts_info *ts_info)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_ptp_data *ptp = efx->ptp_data;
+
+	if (!ptp)
+		return -EOPNOTSUPP;
+
+	ts_info->so_timestamping = (SOF_TIMESTAMPING_TX_HARDWARE |
+				    SOF_TIMESTAMPING_RX_HARDWARE |
+				    SOF_TIMESTAMPING_RAW_HARDWARE);
+	ts_info->phc_index = ptp_clock_index(ptp->phc_clock);
+	ts_info->tx_types = 1 << HWTSTAMP_TX_OFF | 1 << HWTSTAMP_TX_ON;
+	ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE |
+			       1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT |
+			       1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC |
+			       1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ |
+			       1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT |
+			       1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC |
+			       1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
+	return 0;
+}
+
+int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd)
+{
+	struct hwtstamp_config config;
+	int rc;
+
+	/* Not a PTP enabled port */
+	if (!efx->ptp_data)
+		return -EOPNOTSUPP;
+
+	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
+		return -EFAULT;
+
+	rc = efx_ptp_ts_init(efx, &config);
+	if (rc != 0)
+		return rc;
+
+	return copy_to_user(ifr->ifr_data, &config, sizeof(config))
+		? -EFAULT : 0;
+}
+
+static void ptp_event_failure(struct efx_nic *efx, int expected_frag_len)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+
+	netif_err(efx, hw, efx->net_dev,
+		"PTP unexpected event length: got %d expected %d\n",
+		ptp->evt_frag_idx, expected_frag_len);
+	ptp->reset_required = true;
+	queue_work(ptp->workwq, &ptp->work);
+}
+
+/* Process a completed receive event.  Put it on the event queue and
+ * start worker thread.  This is required because event and their
+ * correspoding packets may come in either order.
+ */
+static void ptp_event_rx(struct efx_nic *efx, struct efx_ptp_data *ptp)
+{
+	struct efx_ptp_event_rx *evt = NULL;
+
+	if (ptp->evt_frag_idx != 3) {
+		ptp_event_failure(efx, 3);
+		return;
+	}
+
+	spin_lock_bh(&ptp->evt_lock);
+	if (!list_empty(&ptp->evt_free_list)) {
+		evt = list_first_entry(&ptp->evt_free_list,
+				       struct efx_ptp_event_rx, link);
+		list_del(&evt->link);
+
+		evt->seq0 = EFX_QWORD_FIELD(ptp->evt_frags[2], MCDI_EVENT_DATA);
+		evt->seq1 = (EFX_QWORD_FIELD(ptp->evt_frags[2],
+					     MCDI_EVENT_SRC)        |
+			     (EFX_QWORD_FIELD(ptp->evt_frags[1],
+					      MCDI_EVENT_SRC) << 8) |
+			     (EFX_QWORD_FIELD(ptp->evt_frags[0],
+					      MCDI_EVENT_SRC) << 16));
+		evt->hwtimestamp = ktime_set(
+			EFX_QWORD_FIELD(ptp->evt_frags[0], MCDI_EVENT_DATA),
+			EFX_QWORD_FIELD(ptp->evt_frags[1], MCDI_EVENT_DATA));
+		evt->expiry = jiffies + msecs_to_jiffies(PKT_EVENT_LIFETIME_MS);
+		list_add_tail(&evt->link, &ptp->evt_list);
+
+		queue_work(ptp->workwq, &ptp->work);
+	} else {
+		netif_err(efx, rx_err, efx->net_dev, "No free PTP event");
+	}
+	spin_unlock_bh(&ptp->evt_lock);
+}
+
+static void ptp_event_fault(struct efx_nic *efx, struct efx_ptp_data *ptp)
+{
+	int code = EFX_QWORD_FIELD(ptp->evt_frags[0], MCDI_EVENT_DATA);
+	if (ptp->evt_frag_idx != 1) {
+		ptp_event_failure(efx, 1);
+		return;
+	}
+
+	netif_err(efx, hw, efx->net_dev, "PTP error %d\n", code);
+}
+
+static void ptp_event_pps(struct efx_nic *efx, struct efx_ptp_data *ptp)
+{
+	if (ptp->nic_ts_enabled)
+		queue_work(ptp->pps_workwq, &ptp->pps_work);
+}
+
+void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev)
+{
+	struct efx_ptp_data *ptp = efx->ptp_data;
+	int code = EFX_QWORD_FIELD(*ev, MCDI_EVENT_CODE);
+
+	if (!ptp->enabled)
+		return;
+
+	if (ptp->evt_frag_idx == 0) {
+		ptp->evt_code = code;
+	} else if (ptp->evt_code != code) {
+		netif_err(efx, hw, efx->net_dev,
+			  "PTP out of sequence event %d\n", code);
+		ptp->evt_frag_idx = 0;
+	}
+
+	ptp->evt_frags[ptp->evt_frag_idx++] = *ev;
+	if (!MCDI_EVENT_FIELD(*ev, CONT)) {
+		/* Process resulting event */
+		switch (code) {
+		case MCDI_EVENT_CODE_PTP_RX:
+			ptp_event_rx(efx, ptp);
+			break;
+		case MCDI_EVENT_CODE_PTP_FAULT:
+			ptp_event_fault(efx, ptp);
+			break;
+		case MCDI_EVENT_CODE_PTP_PPS:
+			ptp_event_pps(efx, ptp);
+			break;
+		default:
+			netif_err(efx, hw, efx->net_dev,
+				  "PTP unknown event %d\n", code);
+			break;
+		}
+		ptp->evt_frag_idx = 0;
+	} else if (MAX_EVENT_FRAGS == ptp->evt_frag_idx) {
+		netif_err(efx, hw, efx->net_dev,
+			  "PTP too many event fragments\n");
+		ptp->evt_frag_idx = 0;
+	}
+}
+
+static int efx_phc_adjfreq(struct ptp_clock_info *ptp, s32 delta)
+{
+	struct efx_ptp_data *ptp_data = container_of(ptp,
+						     struct efx_ptp_data,
+						     phc_clock_info);
+	struct efx_nic *efx = ptp_data->channel->efx;
+	u8 inadj[MC_CMD_PTP_IN_ADJUST_LEN];
+	s64 adjustment_ns;
+	int rc;
+
+	if (delta > MAX_PPB)
+		delta = MAX_PPB;
+	else if (delta < -MAX_PPB)
+		delta = -MAX_PPB;
+
+	/* Convert ppb to fixed point ns. */
+	adjustment_ns = (((s64)delta * PPB_SCALE_WORD) >>
+			 (PPB_EXTRA_BITS + MAX_PPB_BITS));
+
+	MCDI_SET_DWORD(inadj, PTP_IN_OP, MC_CMD_PTP_OP_ADJUST);
+	MCDI_SET_DWORD(inadj, PTP_IN_ADJUST_FREQ_LO, (u32)adjustment_ns);
+	MCDI_SET_DWORD(inadj, PTP_IN_ADJUST_FREQ_HI,
+		       (u32)(adjustment_ns >> 32));
+	MCDI_SET_DWORD(inadj, PTP_IN_ADJUST_SECONDS, 0);
+	MCDI_SET_DWORD(inadj, PTP_IN_ADJUST_NANOSECONDS, 0);
+	rc = efx_mcdi_rpc(efx, MC_CMD_PTP, inadj, sizeof(inadj),
+			  NULL, 0, NULL);
+	if (rc != 0)
+		return rc;
+
+	ptp_data->current_adjfreq = delta;
+	return 0;
+}
+
+static int efx_phc_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+	struct efx_ptp_data *ptp_data = container_of(ptp,
+						     struct efx_ptp_data,
+						     phc_clock_info);
+	struct efx_nic *efx = ptp_data->channel->efx;
+	struct timespec delta_ts = ns_to_timespec(delta);
+	u8 inbuf[MC_CMD_PTP_IN_ADJUST_LEN];
+
+	MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_ADJUST);
+	MCDI_SET_DWORD(inbuf, PTP_IN_ADJUST_FREQ_LO, 0);
+	MCDI_SET_DWORD(inbuf, PTP_IN_ADJUST_FREQ_HI, 0);
+	MCDI_SET_DWORD(inbuf, PTP_IN_ADJUST_SECONDS, (u32)delta_ts.tv_sec);
+	MCDI_SET_DWORD(inbuf, PTP_IN_ADJUST_NANOSECONDS, (u32)delta_ts.tv_nsec);
+	return efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
+			    NULL, 0, NULL);
+}
+
+static int efx_phc_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
+{
+	struct efx_ptp_data *ptp_data = container_of(ptp,
+						     struct efx_ptp_data,
+						     phc_clock_info);
+	struct efx_nic *efx = ptp_data->channel->efx;
+	u8 inbuf[MC_CMD_PTP_IN_READ_NIC_TIME_LEN];
+	u8 outbuf[MC_CMD_PTP_OUT_READ_NIC_TIME_LEN];
+	int rc;
+
+	MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_READ_NIC_TIME);
+
+	rc = efx_mcdi_rpc(efx, MC_CMD_PTP, inbuf, sizeof(inbuf),
+			  outbuf, sizeof(outbuf), NULL);
+	if (rc != 0)
+		return rc;
+
+	ts->tv_sec = MCDI_DWORD(outbuf, PTP_OUT_READ_NIC_TIME_SECONDS);
+	ts->tv_nsec = MCDI_DWORD(outbuf, PTP_OUT_READ_NIC_TIME_NANOSECONDS);
+	return 0;
+}
+
+static int efx_phc_settime(struct ptp_clock_info *ptp,
+			   const struct timespec *e_ts)
+{
+	/* Get the current NIC time, efx_phc_gettime.
+	 * Subtract from the desired time to get the offset
+	 * call efx_phc_adjtime with the offset
+	 */
+	int rc;
+	struct timespec time_now;
+	struct timespec delta;
+
+	rc = efx_phc_gettime(ptp, &time_now);
+	if (rc != 0)
+		return rc;
+
+	delta = timespec_sub(*e_ts, time_now);
+
+	efx_phc_adjtime(ptp, timespec_to_ns(&delta));
+	if (rc != 0)
+		return rc;
+
+	return 0;
+}
+
+static int efx_phc_enable(struct ptp_clock_info *ptp,
+			  struct ptp_clock_request *request,
+			  int enable)
+{
+	struct efx_ptp_data *ptp_data = container_of(ptp,
+						     struct efx_ptp_data,
+						     phc_clock_info);
+	if (request->type != PTP_CLK_REQ_PPS)
+		return -EOPNOTSUPP;
+
+	ptp_data->nic_ts_enabled = !!enable;
+	return 0;
+}
+
+static const struct efx_channel_type efx_ptp_channel_type = {
+	.handle_no_channel	= efx_ptp_handle_no_channel,
+	.pre_probe		= efx_ptp_probe_channel,
+	.post_remove		= efx_ptp_remove_channel,
+	.get_name		= efx_ptp_get_channel_name,
+	/* no copy operation; there is no need to reallocate this channel */
+	.receive_skb		= efx_ptp_rx,
+	.keep_eventq		= false,
+};
+
+void efx_ptp_probe(struct efx_nic *efx)
+{
+	/* Check whether PTP is implemented on this NIC.  The DISABLE
+	 * operation will succeed if and only if it is implemented.
+	 */
+	if (efx_ptp_disable(efx) == 0)
+		efx->extra_channel_type[EFX_EXTRA_CHANNEL_PTP] =
+			&efx_ptp_channel_type;
+}
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 719319b89d7..9e0ad1b75c3 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -479,7 +479,7 @@ static void efx_rx_packet_gro(struct efx_channel *channel,
 		skb->ip_summed = ((rx_buf->flags & EFX_RX_PKT_CSUMMED) ?
 				  CHECKSUM_UNNECESSARY : CHECKSUM_NONE);
 
-		skb_record_rx_queue(skb, channel->channel);
+		skb_record_rx_queue(skb, channel->rx_queue.core_index);
 
 		gro_result = napi_gro_frags(napi);
 	} else {
@@ -571,8 +571,14 @@ static void efx_rx_deliver(struct efx_channel *channel,
 	/* Set the SKB flags */
 	skb_checksum_none_assert(skb);
 
+	/* Record the rx_queue */
+	skb_record_rx_queue(skb, channel->rx_queue.core_index);
+
 	/* Pass the packet up */
-	netif_receive_skb(skb);
+	if (channel->type->receive_skb)
+		channel->type->receive_skb(channel, skb);
+	else
+		netif_receive_skb(skb);
 
 	/* Update allocation strategy method */
 	channel->rx_alloc_level += RX_ALLOC_FACTOR_SKB;
@@ -608,13 +614,14 @@ void __efx_rx_packet(struct efx_channel *channel, struct efx_rx_buffer *rx_buf)
 		 * at the ethernet header */
 		skb->protocol = eth_type_trans(skb, efx->net_dev);
 
-		skb_record_rx_queue(skb, channel->channel);
+		skb_record_rx_queue(skb, channel->rx_queue.core_index);
 	}
 
 	if (unlikely(!(efx->net_dev->features & NETIF_F_RXCSUM)))
 		rx_buf->flags &= ~EFX_RX_PKT_CSUMMED;
 
-	if (likely(rx_buf->flags & (EFX_RX_BUF_PAGE | EFX_RX_PKT_CSUMMED)))
+	if (likely(rx_buf->flags & (EFX_RX_BUF_PAGE | EFX_RX_PKT_CSUMMED)) &&
+	    !channel->type->receive_skb)
 		efx_rx_packet_gro(channel, rx_buf, eh);
 	else
 		efx_rx_deliver(channel, rx_buf);
@@ -624,6 +631,11 @@ void efx_rx_strategy(struct efx_channel *channel)
 {
 	enum efx_rx_alloc_method method = rx_alloc_method;
 
+	if (channel->type->receive_skb) {
+		channel->rx_alloc_push_pages = false;
+		return;
+	}
+
 	/* Only makes sense to use page based allocation if GRO is enabled */
 	if (!(channel->efx->net_dev->features & NETIF_F_GRO)) {
 		method = RX_ALLOC_METHOD_SKB;
diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
index 96068d15b60..ce72ae4f399 100644
--- a/drivers/net/ethernet/sfc/selftest.c
+++ b/drivers/net/ethernet/sfc/selftest.c
@@ -614,7 +614,8 @@ static int efx_test_loopbacks(struct efx_nic *efx, struct efx_self_tests *tests,
 {
 	enum efx_loopback_mode mode;
 	struct efx_loopback_state *state;
-	struct efx_channel *channel = efx_get_channel(efx, 0);
+	struct efx_channel *channel =
+		efx_get_channel(efx, efx->tx_channel_offset);
 	struct efx_tx_queue *tx_queue;
 	int rc = 0;
 
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c
index 6bafd216e55..84b41bf08a3 100644
--- a/drivers/net/ethernet/sfc/siena.c
+++ b/drivers/net/ethernet/sfc/siena.c
@@ -335,6 +335,7 @@ static int siena_probe_nic(struct efx_nic *efx)
 		goto fail5;
 
 	efx_sriov_probe(efx);
+	efx_ptp_probe(efx);
 
 	return 0;
 
diff --git a/drivers/net/ethernet/sfc/siena_sriov.c b/drivers/net/ethernet/sfc/siena_sriov.c
index 9cb3b84ecae..d49b53dc2a5 100644
--- a/drivers/net/ethernet/sfc/siena_sriov.c
+++ b/drivers/net/ethernet/sfc/siena_sriov.c
@@ -21,6 +21,9 @@
 /* Number of longs required to track all the VIs in a VF */
 #define VI_MASK_LENGTH BITS_TO_LONGS(1 << EFX_VI_SCALE_MAX)
 
+/* Maximum number of RX queues supported */
+#define VF_MAX_RX_QUEUES 63
+
 /**
  * enum efx_vf_tx_filter_mode - TX MAC filtering behaviour
  * @VF_TX_FILTER_OFF: Disabled
@@ -578,6 +581,7 @@ static int efx_vfdi_init_rxq(struct efx_vf *vf)
 	efx_oword_t reg;
 
 	if (bad_vf_index(efx, vf_evq) || bad_vf_index(efx, vf_rxq) ||
+	    vf_rxq >= VF_MAX_RX_QUEUES ||
 	    bad_buf_count(buf_count, EFX_MAX_DMAQ_SIZE)) {
 		if (net_ratelimit())
 			netif_err(efx, hw, efx->net_dev,
@@ -683,6 +687,9 @@ static int efx_vfdi_fini_all_queues(struct efx_vf *vf)
 	__le32 *rxqs;
 	int rc;
 
+	BUILD_BUG_ON(VF_MAX_RX_QUEUES >
+		     MC_CMD_FLUSH_RX_QUEUES_IN_QID_OFST_MAXNUM);
+
 	rxqs = kmalloc(count * sizeof(*rxqs), GFP_KERNEL);
 	if (rxqs == NULL)
 		return VFDI_RC_ENOMEM;
@@ -1028,6 +1035,7 @@ efx_sriov_get_channel_name(struct efx_channel *channel, char *buf, size_t len)
 static const struct efx_channel_type efx_sriov_channel_type = {
 	.handle_no_channel	= efx_sriov_handle_no_channel,
 	.pre_probe		= efx_sriov_probe_channel,
+	.post_remove		= efx_channel_dummy_op_void,
 	.get_name		= efx_sriov_get_channel_name,
 	/* no copy operation; channel must not be reallocated */
 	.keep_eventq		= true,
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 9b225a7769f..5e090e54298 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -22,14 +22,6 @@
 #include "nic.h"
 #include "workarounds.h"
 
-/*
- * TX descriptor ring full threshold
- *
- * The tx_queue descriptor ring fill-level must fall below this value
- * before we restart the netif queue
- */
-#define EFX_TXQ_THRESHOLD(_efx) ((_efx)->txq_entries / 2u)
-
 static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
 			       struct efx_tx_buffer *buffer,
 			       unsigned int *pkts_compl,
@@ -39,67 +31,32 @@ static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
 		struct device *dma_dev = &tx_queue->efx->pci_dev->dev;
 		dma_addr_t unmap_addr = (buffer->dma_addr + buffer->len -
 					 buffer->unmap_len);
-		if (buffer->unmap_single)
+		if (buffer->flags & EFX_TX_BUF_MAP_SINGLE)
 			dma_unmap_single(dma_dev, unmap_addr, buffer->unmap_len,
 					 DMA_TO_DEVICE);
 		else
 			dma_unmap_page(dma_dev, unmap_addr, buffer->unmap_len,
 				       DMA_TO_DEVICE);
 		buffer->unmap_len = 0;
-		buffer->unmap_single = false;
 	}
 
-	if (buffer->skb) {
+	if (buffer->flags & EFX_TX_BUF_SKB) {
 		(*pkts_compl)++;
 		(*bytes_compl) += buffer->skb->len;
 		dev_kfree_skb_any((struct sk_buff *) buffer->skb);
-		buffer->skb = NULL;
 		netif_vdbg(tx_queue->efx, tx_done, tx_queue->efx->net_dev,
 			   "TX queue %d transmission id %x complete\n",
 			   tx_queue->queue, tx_queue->read_count);
+	} else if (buffer->flags & EFX_TX_BUF_HEAP) {
+		kfree(buffer->heap_buf);
 	}
-}
 
-/**
- * struct efx_tso_header - a DMA mapped buffer for packet headers
- * @next: Linked list of free ones.
- *	The list is protected by the TX queue lock.
- * @dma_unmap_len: Length to unmap for an oversize buffer, or 0.
- * @dma_addr: The DMA address of the header below.
- *
- * This controls the memory used for a TSO header.  Use TSOH_DATA()
- * to find the packet header data.  Use TSOH_SIZE() to calculate the
- * total size required for a given packet header length.  TSO headers
- * in the free list are exactly %TSOH_STD_SIZE bytes in size.
- */
-struct efx_tso_header {
-	union {
-		struct efx_tso_header *next;
-		size_t unmap_len;
-	};
-	dma_addr_t dma_addr;
-};
+	buffer->len = 0;
+	buffer->flags = 0;
+}
 
 static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 			       struct sk_buff *skb);
-static void efx_fini_tso(struct efx_tx_queue *tx_queue);
-static void efx_tsoh_heap_free(struct efx_tx_queue *tx_queue,
-			       struct efx_tso_header *tsoh);
-
-static void efx_tsoh_free(struct efx_tx_queue *tx_queue,
-			  struct efx_tx_buffer *buffer)
-{
-	if (buffer->tsoh) {
-		if (likely(!buffer->tsoh->unmap_len)) {
-			buffer->tsoh->next = tx_queue->tso_headers_free;
-			tx_queue->tso_headers_free = buffer->tsoh;
-		} else {
-			efx_tsoh_heap_free(tx_queue, buffer->tsoh);
-		}
-		buffer->tsoh = NULL;
-	}
-}
-
 
 static inline unsigned
 efx_max_tx_len(struct efx_nic *efx, dma_addr_t dma_addr)
@@ -119,6 +76,75 @@ efx_max_tx_len(struct efx_nic *efx, dma_addr_t dma_addr)
 	return len;
 }
 
+unsigned int efx_tx_max_skb_descs(struct efx_nic *efx)
+{
+	/* Header and payload descriptor for each output segment, plus
+	 * one for every input fragment boundary within a segment
+	 */
+	unsigned int max_descs = EFX_TSO_MAX_SEGS * 2 + MAX_SKB_FRAGS;
+
+	/* Possibly one more per segment for the alignment workaround */
+	if (EFX_WORKAROUND_5391(efx))
+		max_descs += EFX_TSO_MAX_SEGS;
+
+	/* Possibly more for PCIe page boundaries within input fragments */
+	if (PAGE_SIZE > EFX_PAGE_SIZE)
+		max_descs += max_t(unsigned int, MAX_SKB_FRAGS,
+				   DIV_ROUND_UP(GSO_MAX_SIZE, EFX_PAGE_SIZE));
+
+	return max_descs;
+}
+
+/* Get partner of a TX queue, seen as part of the same net core queue */
+static struct efx_tx_queue *efx_tx_queue_partner(struct efx_tx_queue *tx_queue)
+{
+	if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD)
+		return tx_queue - EFX_TXQ_TYPE_OFFLOAD;
+	else
+		return tx_queue + EFX_TXQ_TYPE_OFFLOAD;
+}
+
+static void efx_tx_maybe_stop_queue(struct efx_tx_queue *txq1)
+{
+	/* We need to consider both queues that the net core sees as one */
+	struct efx_tx_queue *txq2 = efx_tx_queue_partner(txq1);
+	struct efx_nic *efx = txq1->efx;
+	unsigned int fill_level;
+
+	fill_level = max(txq1->insert_count - txq1->old_read_count,
+			 txq2->insert_count - txq2->old_read_count);
+	if (likely(fill_level < efx->txq_stop_thresh))
+		return;
+
+	/* We used the stale old_read_count above, which gives us a
+	 * pessimistic estimate of the fill level (which may even
+	 * validly be >= efx->txq_entries).  Now try again using
+	 * read_count (more likely to be a cache miss).
+	 *
+	 * If we read read_count and then conditionally stop the
+	 * queue, it is possible for the completion path to race with
+	 * us and complete all outstanding descriptors in the middle,
+	 * after which there will be no more completions to wake it.
+	 * Therefore we stop the queue first, then read read_count
+	 * (with a memory barrier to ensure the ordering), then
+	 * restart the queue if the fill level turns out to be low
+	 * enough.
+	 */
+	netif_tx_stop_queue(txq1->core_txq);
+	smp_mb();
+	txq1->old_read_count = ACCESS_ONCE(txq1->read_count);
+	txq2->old_read_count = ACCESS_ONCE(txq2->read_count);
+
+	fill_level = max(txq1->insert_count - txq1->old_read_count,
+			 txq2->insert_count - txq2->old_read_count);
+	EFX_BUG_ON_PARANOID(fill_level >= efx->txq_entries);
+	if (likely(fill_level < efx->txq_stop_thresh)) {
+		smp_mb();
+		if (likely(!efx->loopback_selftest))
+			netif_tx_start_queue(txq1->core_txq);
+	}
+}
+
 /*
  * Add a socket buffer to a TX queue
  *
@@ -132,7 +158,7 @@ efx_max_tx_len(struct efx_nic *efx, dma_addr_t dma_addr)
  * This function is split out from efx_hard_start_xmit to allow the
  * loopback test to direct packets via specific TX queues.
  *
- * Returns NETDEV_TX_OK or NETDEV_TX_BUSY
+ * Returns NETDEV_TX_OK.
  * You must hold netif_tx_lock() to call this function.
  */
 netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
@@ -141,12 +167,11 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	struct device *dma_dev = &efx->pci_dev->dev;
 	struct efx_tx_buffer *buffer;
 	skb_frag_t *fragment;
-	unsigned int len, unmap_len = 0, fill_level, insert_ptr;
+	unsigned int len, unmap_len = 0, insert_ptr;
 	dma_addr_t dma_addr, unmap_addr = 0;
 	unsigned int dma_len;
-	bool unmap_single;
-	int q_space, i = 0;
-	netdev_tx_t rc = NETDEV_TX_OK;
+	unsigned short dma_flags;
+	int i = 0;
 
 	EFX_BUG_ON_PARANOID(tx_queue->write_count != tx_queue->insert_count);
 
@@ -164,14 +189,11 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 			return NETDEV_TX_OK;
 	}
 
-	fill_level = tx_queue->insert_count - tx_queue->old_read_count;
-	q_space = efx->txq_entries - 1 - fill_level;
-
 	/* Map for DMA.  Use dma_map_single rather than dma_map_page
 	 * since this is more efficient on machines with sparse
 	 * memory.
 	 */
-	unmap_single = true;
+	dma_flags = EFX_TX_BUF_MAP_SINGLE;
 	dma_addr = dma_map_single(dma_dev, skb->data, len, PCI_DMA_TODEVICE);
 
 	/* Process all fragments */
@@ -186,39 +208,10 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 
 		/* Add to TX queue, splitting across DMA boundaries */
 		do {
-			if (unlikely(q_space-- <= 0)) {
-				/* It might be that completions have
-				 * happened since the xmit path last
-				 * checked.  Update the xmit path's
-				 * copy of read_count.
-				 */
-				netif_tx_stop_queue(tx_queue->core_txq);
-				/* This memory barrier protects the
-				 * change of queue state from the access
-				 * of read_count. */
-				smp_mb();
-				tx_queue->old_read_count =
-					ACCESS_ONCE(tx_queue->read_count);
-				fill_level = (tx_queue->insert_count
-					      - tx_queue->old_read_count);
-				q_space = efx->txq_entries - 1 - fill_level;
-				if (unlikely(q_space-- <= 0)) {
-					rc = NETDEV_TX_BUSY;
-					goto unwind;
-				}
-				smp_mb();
-				if (likely(!efx->loopback_selftest))
-					netif_tx_start_queue(
-						tx_queue->core_txq);
-			}
-
 			insert_ptr = tx_queue->insert_count & tx_queue->ptr_mask;
 			buffer = &tx_queue->buffer[insert_ptr];
-			efx_tsoh_free(tx_queue, buffer);
-			EFX_BUG_ON_PARANOID(buffer->tsoh);
-			EFX_BUG_ON_PARANOID(buffer->skb);
+			EFX_BUG_ON_PARANOID(buffer->flags);
 			EFX_BUG_ON_PARANOID(buffer->len);
-			EFX_BUG_ON_PARANOID(!buffer->continuation);
 			EFX_BUG_ON_PARANOID(buffer->unmap_len);
 
 			dma_len = efx_max_tx_len(efx, dma_addr);
@@ -228,13 +221,14 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 			/* Fill out per descriptor fields */
 			buffer->len = dma_len;
 			buffer->dma_addr = dma_addr;
+			buffer->flags = EFX_TX_BUF_CONT;
 			len -= dma_len;
 			dma_addr += dma_len;
 			++tx_queue->insert_count;
 		} while (len);
 
 		/* Transfer ownership of the unmapping to the final buffer */
-		buffer->unmap_single = unmap_single;
+		buffer->flags = EFX_TX_BUF_CONT | dma_flags;
 		buffer->unmap_len = unmap_len;
 		unmap_len = 0;
 
@@ -245,20 +239,22 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 		len = skb_frag_size(fragment);
 		i++;
 		/* Map for DMA */
-		unmap_single = false;
+		dma_flags = 0;
 		dma_addr = skb_frag_dma_map(dma_dev, fragment, 0, len,
 					    DMA_TO_DEVICE);
 	}
 
 	/* Transfer ownership of the skb to the final buffer */
 	buffer->skb = skb;
-	buffer->continuation = false;
+	buffer->flags = EFX_TX_BUF_SKB | dma_flags;
 
 	netdev_tx_sent_queue(tx_queue->core_txq, skb->len);
 
 	/* Pass off to hardware */
 	efx_nic_push_buffers(tx_queue);
 
+	efx_tx_maybe_stop_queue(tx_queue);
+
 	return NETDEV_TX_OK;
 
  dma_err:
@@ -270,7 +266,6 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	/* Mark the packet as transmitted, and free the SKB ourselves */
 	dev_kfree_skb_any(skb);
 
- unwind:
 	/* Work backwards until we hit the original insert pointer value */
 	while (tx_queue->insert_count != tx_queue->write_count) {
 		unsigned int pkts_compl = 0, bytes_compl = 0;
@@ -278,12 +273,11 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 		insert_ptr = tx_queue->insert_count & tx_queue->ptr_mask;
 		buffer = &tx_queue->buffer[insert_ptr];
 		efx_dequeue_buffer(tx_queue, buffer, &pkts_compl, &bytes_compl);
-		buffer->len = 0;
 	}
 
 	/* Free the fragment we were mid-way through pushing */
 	if (unmap_len) {
-		if (unmap_single)
+		if (dma_flags & EFX_TX_BUF_MAP_SINGLE)
 			dma_unmap_single(dma_dev, unmap_addr, unmap_len,
 					 DMA_TO_DEVICE);
 		else
@@ -291,7 +285,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 				       DMA_TO_DEVICE);
 	}
 
-	return rc;
+	return NETDEV_TX_OK;
 }
 
 /* Remove packets from the TX queue
@@ -321,8 +315,6 @@ static void efx_dequeue_buffers(struct efx_tx_queue *tx_queue,
 		}
 
 		efx_dequeue_buffer(tx_queue, buffer, pkts_compl, bytes_compl);
-		buffer->continuation = true;
-		buffer->len = 0;
 
 		++tx_queue->read_count;
 		read_ptr = tx_queue->read_count & tx_queue->ptr_mask;
@@ -347,6 +339,12 @@ netdev_tx_t efx_hard_start_xmit(struct sk_buff *skb,
 
 	EFX_WARN_ON_PARANOID(!netif_device_present(net_dev));
 
+	/* PTP "event" packet */
+	if (unlikely(efx_xmit_with_hwtstamp(skb)) &&
+	    unlikely(efx_ptp_is_ptp_tx(efx, skb))) {
+		return efx_ptp_tx(efx, skb);
+	}
+
 	index = skb_get_queue_mapping(skb);
 	type = skb->ip_summed == CHECKSUM_PARTIAL ? EFX_TXQ_TYPE_OFFLOAD : 0;
 	if (index >= efx->n_tx_channels) {
@@ -431,6 +429,7 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 {
 	unsigned fill_level;
 	struct efx_nic *efx = tx_queue->efx;
+	struct efx_tx_queue *txq2;
 	unsigned int pkts_compl = 0, bytes_compl = 0;
 
 	EFX_BUG_ON_PARANOID(index > tx_queue->ptr_mask);
@@ -438,15 +437,18 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 	efx_dequeue_buffers(tx_queue, index, &pkts_compl, &bytes_compl);
 	netdev_tx_completed_queue(tx_queue->core_txq, pkts_compl, bytes_compl);
 
-	/* See if we need to restart the netif queue.  This barrier
-	 * separates the update of read_count from the test of the
-	 * queue state. */
+	/* See if we need to restart the netif queue.  This memory
+	 * barrier ensures that we write read_count (inside
+	 * efx_dequeue_buffers()) before reading the queue status.
+	 */
 	smp_mb();
 	if (unlikely(netif_tx_queue_stopped(tx_queue->core_txq)) &&
 	    likely(efx->port_enabled) &&
 	    likely(netif_device_present(efx->net_dev))) {
-		fill_level = tx_queue->insert_count - tx_queue->read_count;
-		if (fill_level < EFX_TXQ_THRESHOLD(efx))
+		txq2 = efx_tx_queue_partner(tx_queue);
+		fill_level = max(tx_queue->insert_count - tx_queue->read_count,
+				 txq2->insert_count - txq2->read_count);
+		if (fill_level <= efx->txq_wake_thresh)
 			netif_tx_wake_queue(tx_queue->core_txq);
 	}
 
@@ -461,11 +463,26 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 	}
 }
 
+/* Size of page-based TSO header buffers.  Larger blocks must be
+ * allocated from the heap.
+ */
+#define TSOH_STD_SIZE	128
+#define TSOH_PER_PAGE	(PAGE_SIZE / TSOH_STD_SIZE)
+
+/* At most half the descriptors in the queue at any time will refer to
+ * a TSO header buffer, since they must always be followed by a
+ * payload descriptor referring to an skb.
+ */
+static unsigned int efx_tsoh_page_count(struct efx_tx_queue *tx_queue)
+{
+	return DIV_ROUND_UP(tx_queue->ptr_mask + 1, 2 * TSOH_PER_PAGE);
+}
+
 int efx_probe_tx_queue(struct efx_tx_queue *tx_queue)
 {
 	struct efx_nic *efx = tx_queue->efx;
 	unsigned int entries;
-	int i, rc;
+	int rc;
 
 	/* Create the smallest power-of-two aligned ring */
 	entries = max(roundup_pow_of_two(efx->txq_entries), EFX_MIN_DMAQ_SIZE);
@@ -481,17 +498,28 @@ int efx_probe_tx_queue(struct efx_tx_queue *tx_queue)
 				   GFP_KERNEL);
 	if (!tx_queue->buffer)
 		return -ENOMEM;
-	for (i = 0; i <= tx_queue->ptr_mask; ++i)
-		tx_queue->buffer[i].continuation = true;
+
+	if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD) {
+		tx_queue->tsoh_page =
+			kcalloc(efx_tsoh_page_count(tx_queue),
+				sizeof(tx_queue->tsoh_page[0]), GFP_KERNEL);
+		if (!tx_queue->tsoh_page) {
+			rc = -ENOMEM;
+			goto fail1;
+		}
+	}
 
 	/* Allocate hardware ring */
 	rc = efx_nic_probe_tx(tx_queue);
 	if (rc)
-		goto fail;
+		goto fail2;
 
 	return 0;
 
- fail:
+fail2:
+	kfree(tx_queue->tsoh_page);
+	tx_queue->tsoh_page = NULL;
+fail1:
 	kfree(tx_queue->buffer);
 	tx_queue->buffer = NULL;
 	return rc;
@@ -527,8 +555,6 @@ void efx_release_tx_buffers(struct efx_tx_queue *tx_queue)
 		unsigned int pkts_compl = 0, bytes_compl = 0;
 		buffer = &tx_queue->buffer[tx_queue->read_count & tx_queue->ptr_mask];
 		efx_dequeue_buffer(tx_queue, buffer, &pkts_compl, &bytes_compl);
-		buffer->continuation = true;
-		buffer->len = 0;
 
 		++tx_queue->read_count;
 	}
@@ -549,13 +575,12 @@ void efx_fini_tx_queue(struct efx_tx_queue *tx_queue)
 	efx_nic_fini_tx(tx_queue);
 
 	efx_release_tx_buffers(tx_queue);
-
-	/* Free up TSO header cache */
-	efx_fini_tso(tx_queue);
 }
 
 void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
 {
+	int i;
+
 	if (!tx_queue->buffer)
 		return;
 
@@ -563,6 +588,14 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
 		  "destroying TX queue %d\n", tx_queue->queue);
 	efx_nic_remove_tx(tx_queue);
 
+	if (tx_queue->tsoh_page) {
+		for (i = 0; i < efx_tsoh_page_count(tx_queue); i++)
+			efx_nic_free_buffer(tx_queue->efx,
+					    &tx_queue->tsoh_page[i]);
+		kfree(tx_queue->tsoh_page);
+		tx_queue->tsoh_page = NULL;
+	}
+
 	kfree(tx_queue->buffer);
 	tx_queue->buffer = NULL;
 }
@@ -585,22 +618,7 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
 #define TSOH_OFFSET	NET_IP_ALIGN
 #endif
 
-#define TSOH_BUFFER(tsoh)	((u8 *)(tsoh + 1) + TSOH_OFFSET)
-
-/* Total size of struct efx_tso_header, buffer and padding */
-#define TSOH_SIZE(hdr_len)					\
-	(sizeof(struct efx_tso_header) + TSOH_OFFSET + hdr_len)
-
-/* Size of blocks on free list.  Larger blocks must be allocated from
- * the heap.
- */
-#define TSOH_STD_SIZE		128
-
 #define PTR_DIFF(p1, p2)  ((u8 *)(p1) - (u8 *)(p2))
-#define ETH_HDR_LEN(skb)  (skb_network_header(skb) - (skb)->data)
-#define SKB_TCP_OFF(skb)  PTR_DIFF(tcp_hdr(skb), (skb)->data)
-#define SKB_IPV4_OFF(skb) PTR_DIFF(ip_hdr(skb), (skb)->data)
-#define SKB_IPV6_OFF(skb) PTR_DIFF(ipv6_hdr(skb), (skb)->data)
 
 /**
  * struct tso_state - TSO state for an SKB
@@ -612,10 +630,12 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
  * @in_len: Remaining length in current SKB fragment
  * @unmap_len: Length of SKB fragment
  * @unmap_addr: DMA address of SKB fragment
- * @unmap_single: DMA single vs page mapping flag
+ * @dma_flags: TX buffer flags for DMA mapping - %EFX_TX_BUF_MAP_SINGLE or 0
  * @protocol: Network protocol (after any VLAN header)
+ * @ip_off: Offset of IP header
+ * @tcp_off: Offset of TCP header
  * @header_len: Number of bytes of header
- * @full_packet_size: Number of bytes to put in each outgoing segment
+ * @ip_base_len: IPv4 tot_len or IPv6 payload_len, before TCP payload
  *
  * The state used during segmentation.  It is put into this data structure
  * just to make it easy to pass into inline functions.
@@ -632,11 +652,13 @@ struct tso_state {
 	unsigned in_len;
 	unsigned unmap_len;
 	dma_addr_t unmap_addr;
-	bool unmap_single;
+	unsigned short dma_flags;
 
 	__be16 protocol;
+	unsigned int ip_off;
+	unsigned int tcp_off;
 	unsigned header_len;
-	int full_packet_size;
+	unsigned int ip_base_len;
 };
 
 
@@ -668,91 +690,43 @@ static __be16 efx_tso_check_protocol(struct sk_buff *skb)
 	return protocol;
 }
 
-
-/*
- * Allocate a page worth of efx_tso_header structures, and string them
- * into the tx_queue->tso_headers_free linked list. Return 0 or -ENOMEM.
- */
-static int efx_tsoh_block_alloc(struct efx_tx_queue *tx_queue)
-{
-	struct device *dma_dev = &tx_queue->efx->pci_dev->dev;
-	struct efx_tso_header *tsoh;
-	dma_addr_t dma_addr;
-	u8 *base_kva, *kva;
-
-	base_kva = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr, GFP_ATOMIC);
-	if (base_kva == NULL) {
-		netif_err(tx_queue->efx, tx_err, tx_queue->efx->net_dev,
-			  "Unable to allocate page for TSO headers\n");
-		return -ENOMEM;
-	}
-
-	/* dma_alloc_coherent() allocates pages. */
-	EFX_BUG_ON_PARANOID(dma_addr & (PAGE_SIZE - 1u));
-
-	for (kva = base_kva; kva < base_kva + PAGE_SIZE; kva += TSOH_STD_SIZE) {
-		tsoh = (struct efx_tso_header *)kva;
-		tsoh->dma_addr = dma_addr + (TSOH_BUFFER(tsoh) - base_kva);
-		tsoh->next = tx_queue->tso_headers_free;
-		tx_queue->tso_headers_free = tsoh;
-	}
-
-	return 0;
-}
-
-
-/* Free up a TSO header, and all others in the same page. */
-static void efx_tsoh_block_free(struct efx_tx_queue *tx_queue,
-				struct efx_tso_header *tsoh,
-				struct device *dma_dev)
+static u8 *efx_tsoh_get_buffer(struct efx_tx_queue *tx_queue,
+			       struct efx_tx_buffer *buffer, unsigned int len)
 {
-	struct efx_tso_header **p;
-	unsigned long base_kva;
-	dma_addr_t base_dma;
-
-	base_kva = (unsigned long)tsoh & PAGE_MASK;
-	base_dma = tsoh->dma_addr & PAGE_MASK;
+	u8 *result;
 
-	p = &tx_queue->tso_headers_free;
-	while (*p != NULL) {
-		if (((unsigned long)*p & PAGE_MASK) == base_kva)
-			*p = (*p)->next;
-		else
-			p = &(*p)->next;
-	}
+	EFX_BUG_ON_PARANOID(buffer->len);
+	EFX_BUG_ON_PARANOID(buffer->flags);
+	EFX_BUG_ON_PARANOID(buffer->unmap_len);
 
-	dma_free_coherent(dma_dev, PAGE_SIZE, (void *)base_kva, base_dma);
-}
+	if (likely(len <= TSOH_STD_SIZE - TSOH_OFFSET)) {
+		unsigned index =
+			(tx_queue->insert_count & tx_queue->ptr_mask) / 2;
+		struct efx_buffer *page_buf =
+			&tx_queue->tsoh_page[index / TSOH_PER_PAGE];
+		unsigned offset =
+			TSOH_STD_SIZE * (index % TSOH_PER_PAGE) + TSOH_OFFSET;
+
+		if (unlikely(!page_buf->addr) &&
+		    efx_nic_alloc_buffer(tx_queue->efx, page_buf, PAGE_SIZE))
+			return NULL;
+
+		result = (u8 *)page_buf->addr + offset;
+		buffer->dma_addr = page_buf->dma_addr + offset;
+		buffer->flags = EFX_TX_BUF_CONT;
+	} else {
+		tx_queue->tso_long_headers++;
 
-static struct efx_tso_header *
-efx_tsoh_heap_alloc(struct efx_tx_queue *tx_queue, size_t header_len)
-{
-	struct efx_tso_header *tsoh;
-
-	tsoh = kmalloc(TSOH_SIZE(header_len), GFP_ATOMIC | GFP_DMA);
-	if (unlikely(!tsoh))
-		return NULL;
-
-	tsoh->dma_addr = dma_map_single(&tx_queue->efx->pci_dev->dev,
-					TSOH_BUFFER(tsoh), header_len,
-					DMA_TO_DEVICE);
-	if (unlikely(dma_mapping_error(&tx_queue->efx->pci_dev->dev,
-				       tsoh->dma_addr))) {
-		kfree(tsoh);
-		return NULL;
+		buffer->heap_buf = kmalloc(TSOH_OFFSET + len, GFP_ATOMIC);
+		if (unlikely(!buffer->heap_buf))
+			return NULL;
+		result = (u8 *)buffer->heap_buf + TSOH_OFFSET;
+		buffer->flags = EFX_TX_BUF_CONT | EFX_TX_BUF_HEAP;
 	}
 
-	tsoh->unmap_len = header_len;
-	return tsoh;
-}
+	buffer->len = len;
 
-static void
-efx_tsoh_heap_free(struct efx_tx_queue *tx_queue, struct efx_tso_header *tsoh)
-{
-	dma_unmap_single(&tx_queue->efx->pci_dev->dev,
-			 tsoh->dma_addr, tsoh->unmap_len,
-			 DMA_TO_DEVICE);
-	kfree(tsoh);
+	return result;
 }
 
 /**
@@ -762,47 +736,19 @@ efx_tsoh_heap_free(struct efx_tx_queue *tx_queue, struct efx_tso_header *tsoh)
  * @len:		Length of fragment
  * @final_buffer:	The final buffer inserted into the queue
  *
- * Push descriptors onto the TX queue.  Return 0 on success or 1 if
- * @tx_queue full.
+ * Push descriptors onto the TX queue.
  */
-static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
-			       dma_addr_t dma_addr, unsigned len,
-			       struct efx_tx_buffer **final_buffer)
+static void efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
+				dma_addr_t dma_addr, unsigned len,
+				struct efx_tx_buffer **final_buffer)
 {
 	struct efx_tx_buffer *buffer;
 	struct efx_nic *efx = tx_queue->efx;
-	unsigned dma_len, fill_level, insert_ptr;
-	int q_space;
+	unsigned dma_len, insert_ptr;
 
 	EFX_BUG_ON_PARANOID(len <= 0);
 
-	fill_level = tx_queue->insert_count - tx_queue->old_read_count;
-	/* -1 as there is no way to represent all descriptors used */
-	q_space = efx->txq_entries - 1 - fill_level;
-
 	while (1) {
-		if (unlikely(q_space-- <= 0)) {
-			/* It might be that completions have happened
-			 * since the xmit path last checked.  Update
-			 * the xmit path's copy of read_count.
-			 */
-			netif_tx_stop_queue(tx_queue->core_txq);
-			/* This memory barrier protects the change of
-			 * queue state from the access of read_count. */
-			smp_mb();
-			tx_queue->old_read_count =
-				ACCESS_ONCE(tx_queue->read_count);
-			fill_level = (tx_queue->insert_count
-				      - tx_queue->old_read_count);
-			q_space = efx->txq_entries - 1 - fill_level;
-			if (unlikely(q_space-- <= 0)) {
-				*final_buffer = NULL;
-				return 1;
-			}
-			smp_mb();
-			netif_tx_start_queue(tx_queue->core_txq);
-		}
-
 		insert_ptr = tx_queue->insert_count & tx_queue->ptr_mask;
 		buffer = &tx_queue->buffer[insert_ptr];
 		++tx_queue->insert_count;
@@ -811,12 +757,9 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
 				    tx_queue->read_count >=
 				    efx->txq_entries);
 
-		efx_tsoh_free(tx_queue, buffer);
 		EFX_BUG_ON_PARANOID(buffer->len);
 		EFX_BUG_ON_PARANOID(buffer->unmap_len);
-		EFX_BUG_ON_PARANOID(buffer->skb);
-		EFX_BUG_ON_PARANOID(!buffer->continuation);
-		EFX_BUG_ON_PARANOID(buffer->tsoh);
+		EFX_BUG_ON_PARANOID(buffer->flags);
 
 		buffer->dma_addr = dma_addr;
 
@@ -826,7 +769,8 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
 		if (dma_len >= len)
 			break;
 
-		buffer->len = dma_len; /* Don't set the other members */
+		buffer->len = dma_len;
+		buffer->flags = EFX_TX_BUF_CONT;
 		dma_addr += dma_len;
 		len -= dma_len;
 	}
@@ -834,7 +778,6 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
 	EFX_BUG_ON_PARANOID(!len);
 	buffer->len = len;
 	*final_buffer = buffer;
-	return 0;
 }
 
 
@@ -845,54 +788,42 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
  * a single fragment, and we know it doesn't cross a page boundary.  It
  * also allows us to not worry about end-of-packet etc.
  */
-static void efx_tso_put_header(struct efx_tx_queue *tx_queue,
-			       struct efx_tso_header *tsoh, unsigned len)
+static int efx_tso_put_header(struct efx_tx_queue *tx_queue,
+			      struct efx_tx_buffer *buffer, u8 *header)
 {
-	struct efx_tx_buffer *buffer;
-
-	buffer = &tx_queue->buffer[tx_queue->insert_count & tx_queue->ptr_mask];
-	efx_tsoh_free(tx_queue, buffer);
-	EFX_BUG_ON_PARANOID(buffer->len);
-	EFX_BUG_ON_PARANOID(buffer->unmap_len);
-	EFX_BUG_ON_PARANOID(buffer->skb);
-	EFX_BUG_ON_PARANOID(!buffer->continuation);
-	EFX_BUG_ON_PARANOID(buffer->tsoh);
-	buffer->len = len;
-	buffer->dma_addr = tsoh->dma_addr;
-	buffer->tsoh = tsoh;
+	if (unlikely(buffer->flags & EFX_TX_BUF_HEAP)) {
+		buffer->dma_addr = dma_map_single(&tx_queue->efx->pci_dev->dev,
+						  header, buffer->len,
+						  DMA_TO_DEVICE);
+		if (unlikely(dma_mapping_error(&tx_queue->efx->pci_dev->dev,
+					       buffer->dma_addr))) {
+			kfree(buffer->heap_buf);
+			buffer->len = 0;
+			buffer->flags = 0;
+			return -ENOMEM;
+		}
+		buffer->unmap_len = buffer->len;
+		buffer->flags |= EFX_TX_BUF_MAP_SINGLE;
+	}
 
 	++tx_queue->insert_count;
+	return 0;
 }
 
 
-/* Remove descriptors put into a tx_queue. */
+/* Remove buffers put into a tx_queue.  None of the buffers must have
+ * an skb attached.
+ */
 static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
 {
 	struct efx_tx_buffer *buffer;
-	dma_addr_t unmap_addr;
 
 	/* Work backwards until we hit the original insert pointer value */
 	while (tx_queue->insert_count != tx_queue->write_count) {
 		--tx_queue->insert_count;
 		buffer = &tx_queue->buffer[tx_queue->insert_count &
 					   tx_queue->ptr_mask];
-		efx_tsoh_free(tx_queue, buffer);
-		EFX_BUG_ON_PARANOID(buffer->skb);
-		if (buffer->unmap_len) {
-			unmap_addr = (buffer->dma_addr + buffer->len -
-				      buffer->unmap_len);
-			if (buffer->unmap_single)
-				dma_unmap_single(&tx_queue->efx->pci_dev->dev,
-						 unmap_addr, buffer->unmap_len,
-						 DMA_TO_DEVICE);
-			else
-				dma_unmap_page(&tx_queue->efx->pci_dev->dev,
-					       unmap_addr, buffer->unmap_len,
-					       DMA_TO_DEVICE);
-			buffer->unmap_len = 0;
-		}
-		buffer->len = 0;
-		buffer->continuation = true;
+		efx_dequeue_buffer(tx_queue, buffer, NULL, NULL);
 	}
 }
 
@@ -900,17 +831,16 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
 /* Parse the SKB header and initialise state. */
 static void tso_start(struct tso_state *st, const struct sk_buff *skb)
 {
-	/* All ethernet/IP/TCP headers combined size is TCP header size
-	 * plus offset of TCP header relative to start of packet.
-	 */
-	st->header_len = ((tcp_hdr(skb)->doff << 2u)
-			  + PTR_DIFF(tcp_hdr(skb), skb->data));
-	st->full_packet_size = st->header_len + skb_shinfo(skb)->gso_size;
-
-	if (st->protocol == htons(ETH_P_IP))
+	st->ip_off = skb_network_header(skb) - skb->data;
+	st->tcp_off = skb_transport_header(skb) - skb->data;
+	st->header_len = st->tcp_off + (tcp_hdr(skb)->doff << 2u);
+	if (st->protocol == htons(ETH_P_IP)) {
+		st->ip_base_len = st->header_len - st->ip_off;
 		st->ipv4_id = ntohs(ip_hdr(skb)->id);
-	else
+	} else {
+		st->ip_base_len = st->header_len - st->tcp_off;
 		st->ipv4_id = 0;
+	}
 	st->seqnum = ntohl(tcp_hdr(skb)->seq);
 
 	EFX_BUG_ON_PARANOID(tcp_hdr(skb)->urg);
@@ -919,7 +849,7 @@ static void tso_start(struct tso_state *st, const struct sk_buff *skb)
 
 	st->out_len = skb->len - st->header_len;
 	st->unmap_len = 0;
-	st->unmap_single = false;
+	st->dma_flags = 0;
 }
 
 static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
@@ -928,7 +858,7 @@ static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
 	st->unmap_addr = skb_frag_dma_map(&efx->pci_dev->dev, frag, 0,
 					  skb_frag_size(frag), DMA_TO_DEVICE);
 	if (likely(!dma_mapping_error(&efx->pci_dev->dev, st->unmap_addr))) {
-		st->unmap_single = false;
+		st->dma_flags = 0;
 		st->unmap_len = skb_frag_size(frag);
 		st->in_len = skb_frag_size(frag);
 		st->dma_addr = st->unmap_addr;
@@ -946,7 +876,7 @@ static int tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
 	st->unmap_addr = dma_map_single(&efx->pci_dev->dev, skb->data + hl,
 					len, DMA_TO_DEVICE);
 	if (likely(!dma_mapping_error(&efx->pci_dev->dev, st->unmap_addr))) {
-		st->unmap_single = true;
+		st->dma_flags = EFX_TX_BUF_MAP_SINGLE;
 		st->unmap_len = len;
 		st->in_len = len;
 		st->dma_addr = st->unmap_addr;
@@ -963,20 +893,19 @@ static int tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
  * @st:			TSO state
  *
  * Form descriptors for the current fragment, until we reach the end
- * of fragment or end-of-packet.  Return 0 on success, 1 if not enough
- * space in @tx_queue.
+ * of fragment or end-of-packet.
  */
-static int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
-					 const struct sk_buff *skb,
-					 struct tso_state *st)
+static void tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
+					  const struct sk_buff *skb,
+					  struct tso_state *st)
 {
 	struct efx_tx_buffer *buffer;
-	int n, end_of_packet, rc;
+	int n;
 
 	if (st->in_len == 0)
-		return 0;
+		return;
 	if (st->packet_space == 0)
-		return 0;
+		return;
 
 	EFX_BUG_ON_PARANOID(st->in_len <= 0);
 	EFX_BUG_ON_PARANOID(st->packet_space <= 0);
@@ -987,25 +916,24 @@ static int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
 	st->out_len -= n;
 	st->in_len -= n;
 
-	rc = efx_tx_queue_insert(tx_queue, st->dma_addr, n, &buffer);
-	if (likely(rc == 0)) {
-		if (st->out_len == 0)
-			/* Transfer ownership of the skb */
-			buffer->skb = skb;
+	efx_tx_queue_insert(tx_queue, st->dma_addr, n, &buffer);
 
-		end_of_packet = st->out_len == 0 || st->packet_space == 0;
-		buffer->continuation = !end_of_packet;
+	if (st->out_len == 0) {
+		/* Transfer ownership of the skb */
+		buffer->skb = skb;
+		buffer->flags = EFX_TX_BUF_SKB;
+	} else if (st->packet_space != 0) {
+		buffer->flags = EFX_TX_BUF_CONT;
+	}
 
-		if (st->in_len == 0) {
-			/* Transfer ownership of the DMA mapping */
-			buffer->unmap_len = st->unmap_len;
-			buffer->unmap_single = st->unmap_single;
-			st->unmap_len = 0;
-		}
+	if (st->in_len == 0) {
+		/* Transfer ownership of the DMA mapping */
+		buffer->unmap_len = st->unmap_len;
+		buffer->flags |= st->dma_flags;
+		st->unmap_len = 0;
 	}
 
 	st->dma_addr += n;
-	return rc;
 }
 
 
@@ -1016,36 +944,25 @@ static int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
  * @st:			TSO state
  *
  * Generate a new header and prepare for the new packet.  Return 0 on
- * success, or -1 if failed to alloc header.
+ * success, or -%ENOMEM if failed to alloc header.
  */
 static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 				const struct sk_buff *skb,
 				struct tso_state *st)
 {
-	struct efx_tso_header *tsoh;
+	struct efx_tx_buffer *buffer =
+		&tx_queue->buffer[tx_queue->insert_count & tx_queue->ptr_mask];
 	struct tcphdr *tsoh_th;
 	unsigned ip_length;
 	u8 *header;
+	int rc;
 
-	/* Allocate a DMA-mapped header buffer. */
-	if (likely(TSOH_SIZE(st->header_len) <= TSOH_STD_SIZE)) {
-		if (tx_queue->tso_headers_free == NULL) {
-			if (efx_tsoh_block_alloc(tx_queue))
-				return -1;
-		}
-		EFX_BUG_ON_PARANOID(!tx_queue->tso_headers_free);
-		tsoh = tx_queue->tso_headers_free;
-		tx_queue->tso_headers_free = tsoh->next;
-		tsoh->unmap_len = 0;
-	} else {
-		tx_queue->tso_long_headers++;
-		tsoh = efx_tsoh_heap_alloc(tx_queue, st->header_len);
-		if (unlikely(!tsoh))
-			return -1;
-	}
+	/* Allocate and insert a DMA-mapped header buffer. */
+	header = efx_tsoh_get_buffer(tx_queue, buffer, st->header_len);
+	if (!header)
+		return -ENOMEM;
 
-	header = TSOH_BUFFER(tsoh);
-	tsoh_th = (struct tcphdr *)(header + SKB_TCP_OFF(skb));
+	tsoh_th = (struct tcphdr *)(header + st->tcp_off);
 
 	/* Copy and update the headers. */
 	memcpy(header, skb->data, st->header_len);
@@ -1054,19 +971,19 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 	st->seqnum += skb_shinfo(skb)->gso_size;
 	if (st->out_len > skb_shinfo(skb)->gso_size) {
 		/* This packet will not finish the TSO burst. */
-		ip_length = st->full_packet_size - ETH_HDR_LEN(skb);
+		st->packet_space = skb_shinfo(skb)->gso_size;
 		tsoh_th->fin = 0;
 		tsoh_th->psh = 0;
 	} else {
 		/* This packet will be the last in the TSO burst. */
-		ip_length = st->header_len - ETH_HDR_LEN(skb) + st->out_len;
+		st->packet_space = st->out_len;
 		tsoh_th->fin = tcp_hdr(skb)->fin;
 		tsoh_th->psh = tcp_hdr(skb)->psh;
 	}
+	ip_length = st->ip_base_len + st->packet_space;
 
 	if (st->protocol == htons(ETH_P_IP)) {
-		struct iphdr *tsoh_iph =
-			(struct iphdr *)(header + SKB_IPV4_OFF(skb));
+		struct iphdr *tsoh_iph = (struct iphdr *)(header + st->ip_off);
 
 		tsoh_iph->tot_len = htons(ip_length);
 
@@ -1075,16 +992,16 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 		st->ipv4_id++;
 	} else {
 		struct ipv6hdr *tsoh_iph =
-			(struct ipv6hdr *)(header + SKB_IPV6_OFF(skb));
+			(struct ipv6hdr *)(header + st->ip_off);
 
-		tsoh_iph->payload_len = htons(ip_length - sizeof(*tsoh_iph));
+		tsoh_iph->payload_len = htons(ip_length);
 	}
 
-	st->packet_space = skb_shinfo(skb)->gso_size;
-	++tx_queue->tso_packets;
+	rc = efx_tso_put_header(tx_queue, buffer, header);
+	if (unlikely(rc))
+		return rc;
 
-	/* Form a descriptor for this header. */
-	efx_tso_put_header(tx_queue, tsoh, st->header_len);
+	++tx_queue->tso_packets;
 
 	return 0;
 }
@@ -1099,13 +1016,13 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
  *
  * Add socket buffer @skb to @tx_queue, doing TSO or return != 0 if
  * @skb was not enqueued.  In all cases @skb is consumed.  Return
- * %NETDEV_TX_OK or %NETDEV_TX_BUSY.
+ * %NETDEV_TX_OK.
  */
 static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 			       struct sk_buff *skb)
 {
 	struct efx_nic *efx = tx_queue->efx;
-	int frag_i, rc, rc2 = NETDEV_TX_OK;
+	int frag_i, rc;
 	struct tso_state state;
 
 	/* Find the packet protocol and sanity-check it */
@@ -1137,11 +1054,7 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 		goto mem_err;
 
 	while (1) {
-		rc = tso_fill_packet_with_fragment(tx_queue, skb, &state);
-		if (unlikely(rc)) {
-			rc2 = NETDEV_TX_BUSY;
-			goto unwind;
-		}
+		tso_fill_packet_with_fragment(tx_queue, skb, &state);
 
 		/* Move onto the next fragment? */
 		if (state.in_len == 0) {
@@ -1165,6 +1078,8 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 	/* Pass off to hardware */
 	efx_nic_push_buffers(tx_queue);
 
+	efx_tx_maybe_stop_queue(tx_queue);
+
 	tx_queue->tso_bursts++;
 	return NETDEV_TX_OK;
 
@@ -1173,10 +1088,9 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 		  "Out of memory for TSO headers, or DMA mapping error\n");
 	dev_kfree_skb_any(skb);
 
- unwind:
 	/* Free the DMA mapping we were in the process of writing out */
 	if (state.unmap_len) {
-		if (state.unmap_single)
+		if (state.dma_flags & EFX_TX_BUF_MAP_SINGLE)
 			dma_unmap_single(&efx->pci_dev->dev, state.unmap_addr,
 					 state.unmap_len, DMA_TO_DEVICE);
 		else
@@ -1185,25 +1099,5 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 	}
 
 	efx_enqueue_unwind(tx_queue);
-	return rc2;
-}
-
-
-/*
- * Free up all TSO datastructures associated with tx_queue. This
- * routine should be called only once the tx_queue is both empty and
- * will no longer be used.
- */
-static void efx_fini_tso(struct efx_tx_queue *tx_queue)
-{
-	unsigned i;
-
-	if (tx_queue->buffer) {
-		for (i = 0; i <= tx_queue->ptr_mask; ++i)
-			efx_tsoh_free(tx_queue, &tx_queue->buffer[i]);
-	}
-
-	while (tx_queue->tso_headers_free != NULL)
-		efx_tsoh_block_free(tx_queue, tx_queue->tso_headers_free,
-				    &tx_queue->efx->pci_dev->dev);
+	return NETDEV_TX_OK;
 }
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index b5ba3084c7f..3e5519a0acc 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -1147,15 +1147,17 @@ static void __devinit ioc3_8250_register(struct ioc3_uartregs __iomem *uart)
 {
 #define COSMISC_CONSTANT 6
 
-	struct uart_port port = {
-		.irq		= 0,
-		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
-		.iotype		= UPIO_MEM,
-		.regshift	= 0,
-		.uartclk	= (22000000 << 1) / COSMISC_CONSTANT,
-
-		.membase	= (unsigned char __iomem *) uart,
-		.mapbase	= (unsigned long) uart,
+	struct uart_8250_port port = {
+	        .port = {
+			.irq		= 0,
+			.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+			.iotype		= UPIO_MEM,
+			.regshift	= 0,
+			.uartclk	= (22000000 << 1) / COSMISC_CONSTANT,
+
+			.membase	= (unsigned char __iomem *) uart,
+			.mapbase	= (unsigned long) uart,
+                }
 	};
 	unsigned char lcr;
 
@@ -1164,7 +1166,7 @@ static void __devinit ioc3_8250_register(struct ioc3_uartregs __iomem *uart)
 	uart->iu_scr = COSMISC_CONSTANT,
 	uart->iu_lcr = lcr;
 	uart->iu_lcr;
-	serial8250_register_port(&port);
+	serial8250_register_8250_port(&port);
 }
 
 static void __devinit ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index e2d083228f3..719be3912aa 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -22,6 +22,9 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
 
+#ifndef __COMMON_H__
+#define __COMMON_H__
+
 #include <linux/etherdevice.h>
 #include <linux/netdevice.h>
 #include <linux/phy.h>
@@ -366,3 +369,5 @@ extern void stmmac_set_mac(void __iomem *ioaddr, bool enable);
 
 extern void dwmac_dma_flush_tx_fifo(void __iomem *ioaddr);
 extern const struct stmmac_ring_mode_ops ring_mode_ops;
+
+#endif /* __COMMON_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/descs.h b/drivers/net/ethernet/stmicro/stmmac/descs.h
index 9820ec842cc..223adf95fd0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/descs.h
+++ b/drivers/net/ethernet/stmicro/stmmac/descs.h
@@ -20,6 +20,10 @@
 
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
+
+#ifndef __DESCS_H__
+#define __DESCS_H__
+
 struct dma_desc {
 	/* Receive descriptor */
 	union {
@@ -166,3 +170,5 @@ enum tdes_csum_insertion {
 					 * is not calculated */
 	cic_full = 3,		/* IP header and pseudoheader */
 };
+
+#endif /* __DESCS_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/descs_com.h b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
index dd8d6e19dff..7ee9499a6e3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/descs_com.h
+++ b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
@@ -27,6 +27,9 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
 
+#ifndef __DESC_COM_H__
+#define __DESC_COM_H__
+
 #if defined(CONFIG_STMMAC_RING)
 static inline void ehn_desc_rx_set_on_ring_chain(struct dma_desc *p, int end)
 {
@@ -124,3 +127,5 @@ static inline void norm_set_tx_desc_len(struct dma_desc *p, int len)
 	p->des01.tx.buffer1_size = len;
 }
 #endif
+
+#endif /* __DESC_COM_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100.h b/drivers/net/ethernet/stmicro/stmmac/dwmac100.h
index 7c6d857a9cc..2ec6aeae349 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100.h
@@ -22,6 +22,9 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
 
+#ifndef __DWMAC100_H__
+#define __DWMAC100_H__
+
 #include <linux/phy.h>
 #include "common.h"
 
@@ -119,3 +122,5 @@ enum ttc_control {
 #define DMA_MISSED_FRAME_M_CNTR	0x0000ffff	/* Missed Frame Couinter */
 
 extern const struct stmmac_dma_ops dwmac100_dma_ops;
+
+#endif /* __DWMAC100_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
index f90fcb5f957..0e4cacedc1f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
@@ -19,6 +19,8 @@
 
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
+#ifndef __DWMAC1000_H__
+#define __DWMAC1000_H__
 
 #include <linux/phy.h>
 #include "common.h"
@@ -229,6 +231,7 @@ enum rtc_control {
 #define GMAC_MMC_RX_CSUM_OFFLOAD   0x208
 
 /* Synopsys Core versions */
-#define	DWMAC_CORE_3_40	34
+#define	DWMAC_CORE_3_40	0x34
 
 extern const struct stmmac_dma_ops dwmac1000_dma_ops;
+#endif /* __DWMAC1000_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
index e678ce39d01..e49c9a0fd6f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
@@ -22,6 +22,9 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
 
+#ifndef __DWMAC_DMA_H__
+#define __DWMAC_DMA_H__
+
 /* DMA CRS Control and Status Register Mapping */
 #define DMA_BUS_MODE		0x00001000	/* Bus Mode */
 #define DMA_XMT_POLL_DEMAND	0x00001004	/* Transmit Poll Demand */
@@ -109,3 +112,5 @@ extern void dwmac_dma_start_rx(void __iomem *ioaddr);
 extern void dwmac_dma_stop_rx(void __iomem *ioaddr);
 extern int dwmac_dma_interrupt(void __iomem *ioaddr,
 				struct stmmac_extra_stats *x);
+
+#endif /* __DWMAC_DMA_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc.h b/drivers/net/ethernet/stmicro/stmmac/mmc.h
index a38352024cb..67995ef2525 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc.h
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc.h
@@ -22,6 +22,9 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
 
+#ifndef __MMC_H__
+#define __MMC_H__
+
 /* MMC control register */
 /* When set, all counter are reset */
 #define MMC_CNTRL_COUNTER_RESET		0x1
@@ -129,3 +132,5 @@ struct stmmac_counters {
 extern void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode);
 extern void dwmac_mmc_intr_all_mask(void __iomem *ioaddr);
 extern void dwmac_mmc_read(void __iomem *ioaddr, struct stmmac_counters *mmc);
+
+#endif /* __MMC_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index c07cfe989f6..0c74a702d46 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -33,7 +33,7 @@
 #define MMC_TX_INTR		0x00000108	/* MMC TX Interrupt */
 #define MMC_RX_INTR_MASK	0x0000010c	/* MMC Interrupt Mask */
 #define MMC_TX_INTR_MASK	0x00000110	/* MMC Interrupt Mask */
-#define MMC_DEFAUL_MASK		0xffffffff
+#define MMC_DEFAULT_MASK		0xffffffff
 
 /* MMC TX counter registers */
 
@@ -147,8 +147,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
 /* To mask all all interrupts.*/
 void dwmac_mmc_intr_all_mask(void __iomem *ioaddr)
 {
-	writel(MMC_DEFAUL_MASK, ioaddr + MMC_RX_INTR_MASK);
-	writel(MMC_DEFAUL_MASK, ioaddr + MMC_TX_INTR_MASK);
+	writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_INTR_MASK);
+	writel(MMC_DEFAULT_MASK, ioaddr + MMC_TX_INTR_MASK);
 }
 
 /* This reads the MAC core counters (if actaully supported).
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index f2d3665430a..e872e1da313 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -20,6 +20,9 @@
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
 
+#ifndef __STMMAC_H__
+#define __STMMAC_H__
+
 #define STMMAC_RESOURCE_NAME   "stmmaceth"
 #define DRV_MODULE_VERSION	"March_2012"
 
@@ -166,3 +169,5 @@ static inline void stmmac_unregister_pci(void)
 {
 }
 #endif /* CONFIG_STMMAC_PCI */
+
+#endif /* __STMMAC_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index fd8882f9602..3be88331d17 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1066,7 +1066,7 @@ static int stmmac_open(struct net_device *dev)
 	} else
 		priv->tm->enable = 1;
 #endif
-	clk_enable(priv->stmmac_clk);
+	clk_prepare_enable(priv->stmmac_clk);
 
 	stmmac_check_ether_addr(priv);
 
@@ -1188,7 +1188,7 @@ open_error:
 	if (priv->phydev)
 		phy_disconnect(priv->phydev);
 
-	clk_disable(priv->stmmac_clk);
+	clk_disable_unprepare(priv->stmmac_clk);
 
 	return ret;
 }
@@ -1246,7 +1246,7 @@ static int stmmac_release(struct net_device *dev)
 #ifdef CONFIG_STMMAC_DEBUG_FS
 	stmmac_exit_fs();
 #endif
-	clk_disable(priv->stmmac_clk);
+	clk_disable_unprepare(priv->stmmac_clk);
 
 	return 0;
 }
@@ -2077,7 +2077,7 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,
 		goto error_netdev_register;
 	}
 
-	priv->stmmac_clk = clk_get(priv->device, NULL);
+	priv->stmmac_clk = clk_get(priv->device, STMMAC_RESOURCE_NAME);
 	if (IS_ERR(priv->stmmac_clk)) {
 		pr_warning("%s: warning: cannot get CSR clock\n", __func__);
 		goto error_clk_get;
@@ -2178,7 +2178,7 @@ int stmmac_suspend(struct net_device *ndev)
 	else {
 		stmmac_set_mac(priv->ioaddr, false);
 		/* Disable clock in case of PWM is off */
-		clk_disable(priv->stmmac_clk);
+		clk_disable_unprepare(priv->stmmac_clk);
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
 	return 0;
@@ -2203,7 +2203,7 @@ int stmmac_resume(struct net_device *ndev)
 		priv->hw->mac->pmt(priv->ioaddr, 0);
 	else
 		/* enable the clk prevously disabled */
-		clk_enable(priv->stmmac_clk);
+		clk_prepare_enable(priv->stmmac_clk);
 
 	netif_device_attach(ndev);
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index ade10823204..0376a5e6b2b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -177,7 +177,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	new_bus->write = &stmmac_mdio_write;
 	new_bus->reset = &stmmac_mdio_reset;
 	snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s-%x",
-		new_bus->name, mdio_bus_data->bus_id);
+		new_bus->name, priv->plat->bus_id);
 	new_bus->priv = ndev;
 	new_bus->irq = irqlist;
 	new_bus->phy_mask = mdio_bus_data->phy_mask;
@@ -213,12 +213,10 @@ int stmmac_mdio_register(struct net_device *ndev)
 			 * and no PHY number was provided to the MAC,
 			 * use the one probed here.
 			 */
-			if ((priv->plat->bus_id == mdio_bus_data->bus_id) &&
-			    (priv->plat->phy_addr == -1))
+			if (priv->plat->phy_addr == -1)
 				priv->plat->phy_addr = addr;
 
-			act = (priv->plat->bus_id == mdio_bus_data->bus_id) &&
-				(priv->plat->phy_addr == addr);
+			act = (priv->plat->phy_addr == addr);
 			switch (phydev->irq) {
 			case PHY_POLL:
 				irq_str = "POLL";
@@ -258,6 +256,9 @@ int stmmac_mdio_unregister(struct net_device *ndev)
 {
 	struct stmmac_priv *priv = netdev_priv(ndev);
 
+	if (!priv->mii)
+		return 0;
+
 	mdiobus_unregister(priv->mii);
 	priv->mii->priv = NULL;
 	mdiobus_free(priv->mii);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
index 13afb8edfad..1f069b0f6af 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -40,7 +40,6 @@ static void stmmac_default_data(void)
 	plat_dat.has_gmac = 1;
 	plat_dat.force_sf_dma_mode = 1;
 
-	mdio_data.bus_id = 1;
 	mdio_data.phy_reset = NULL;
 	mdio_data.phy_mask = 0;
 	plat_dat.mdio_bus_data = &mdio_data;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index cd01ee7ecef..ed112b55ae7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -74,10 +74,11 @@ static int __devinit stmmac_probe_config_dt(struct platform_device *pdev,
  * the necessary resources and invokes the main to init
  * the net device, register the mdio bus etc.
  */
-static int stmmac_pltfr_probe(struct platform_device *pdev)
+static int __devinit stmmac_pltfr_probe(struct platform_device *pdev)
 {
 	int ret = 0;
 	struct resource *res;
+	struct device *dev = &pdev->dev;
 	void __iomem *addr = NULL;
 	struct stmmac_priv *priv = NULL;
 	struct plat_stmmacenet_data *plat_dat = NULL;
@@ -87,18 +88,10 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 	if (!res)
 		return -ENODEV;
 
-	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
-		pr_err("%s: ERROR: memory allocation failed"
-		       "cannot get the I/O addr 0x%x\n",
-		       __func__, (unsigned int)res->start);
-		return -EBUSY;
-	}
-
-	addr = ioremap(res->start, resource_size(res));
+	addr = devm_request_and_ioremap(dev, res);
 	if (!addr) {
 		pr_err("%s: ERROR: memory mapping failed", __func__);
-		ret = -ENOMEM;
-		goto out_release_region;
+		return -ENOMEM;
 	}
 
 	if (pdev->dev.of_node) {
@@ -107,14 +100,13 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 					GFP_KERNEL);
 		if (!plat_dat) {
 			pr_err("%s: ERROR: no memory", __func__);
-			ret = -ENOMEM;
-			goto out_unmap;
+			return  -ENOMEM;
 		}
 
 		ret = stmmac_probe_config_dt(pdev, plat_dat, &mac);
 		if (ret) {
 			pr_err("%s: main dt probe failed", __func__);
-			goto out_unmap;
+			return ret;
 		}
 	} else {
 		plat_dat = pdev->dev.platform_data;
@@ -124,13 +116,13 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 	if (plat_dat->init) {
 		ret = plat_dat->init(pdev);
 		if (unlikely(ret))
-			goto out_unmap;
+			return ret;
 	}
 
 	priv = stmmac_dvr_probe(&(pdev->dev), plat_dat, addr);
 	if (!priv) {
 		pr_err("%s: main driver probe failed", __func__);
-		goto out_unmap;
+		return -ENODEV;
 	}
 
 	/* Get MAC address if available (DT) */
@@ -142,8 +134,7 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 	if (priv->dev->irq == -ENXIO) {
 		pr_err("%s: ERROR: MAC IRQ configuration "
 		       "information not found\n", __func__);
-		ret = -ENXIO;
-		goto out_unmap;
+		return -ENXIO;
 	}
 
 	/*
@@ -165,15 +156,6 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 	pr_debug("STMMAC platform driver registration completed");
 
 	return 0;
-
-out_unmap:
-	iounmap(addr);
-	platform_set_drvdata(pdev, NULL);
-
-out_release_region:
-	release_mem_region(res->start, resource_size(res));
-
-	return ret;
 }
 
 /**
@@ -186,7 +168,6 @@ static int stmmac_pltfr_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
-	struct resource *res;
 	int ret = stmmac_dvr_remove(ndev);
 
 	if (priv->plat->exit)
@@ -194,10 +175,6 @@ static int stmmac_pltfr_remove(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, NULL);
 
-	iounmap((void __force __iomem *)priv->ioaddr);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(res->start, resource_size(res));
-
 	return ret;
 }
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.c
index 2a0e1abde7e..4ccd4e2977b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.c
@@ -97,19 +97,19 @@ static struct clk *timer_clock;
 static void stmmac_tmu_start(unsigned int new_freq)
 {
 	clk_set_rate(timer_clock, new_freq);
-	clk_enable(timer_clock);
+	clk_prepare_enable(timer_clock);
 }
 
 static void stmmac_tmu_stop(void)
 {
-	clk_disable(timer_clock);
+	clk_disable_unprepare(timer_clock);
 }
 
 int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
 {
 	timer_clock = clk_get(NULL, TMU_CHANNEL);
 
-	if (timer_clock == NULL)
+	if (IS_ERR(timer_clock))
 		return -1;
 
 	if (tmu2_register_user(stmmac_timer_handler, (void *)dev) < 0) {
@@ -126,7 +126,7 @@ int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
 
 int stmmac_close_ext_timer(void)
 {
-	clk_disable(timer_clock);
+	clk_disable_unprepare(timer_clock);
 	tmu2_unregister_user();
 	clk_put(timer_clock);
 	return 0;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.h
index 6863590d184..aea9b14cdfb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_timer.h
@@ -21,6 +21,8 @@
 
   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
 *******************************************************************************/
+#ifndef __STMMAC_TIMER_H__
+#define __STMMAC_TIMER_H__
 
 struct stmmac_timer {
 	void (*timer_start) (unsigned int new_freq);
@@ -40,3 +42,5 @@ void stmmac_schedule(struct net_device *dev);
 extern int tmu2_register_user(void *fnt, void *data);
 extern void tmu2_unregister_user(void);
 #endif
+
+#endif /* __STMMAC_TIMER_H__ */
diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index ce4df61b4b5..c8251be104d 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -3890,7 +3890,7 @@ static int cas_change_mtu(struct net_device *dev, int new_mtu)
 	schedule_work(&cp->reset_task);
 #endif
 
-	flush_work_sync(&cp->reset_task);
+	flush_work(&cp->reset_task);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index c2a0fe39326..8419bf385e0 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -9762,9 +9762,8 @@ static int __devinit niu_pci_init_one(struct pci_dev *pdev,
 	union niu_parent_id parent_id;
 	struct net_device *dev;
 	struct niu *np;
-	int err, pos;
+	int err;
 	u64 dma_mask;
-	u16 val16;
 
 	niu_driver_version();
 
@@ -9787,8 +9786,7 @@ static int __devinit niu_pci_init_one(struct pci_dev *pdev,
 		goto err_out_disable_pdev;
 	}
 
-	pos = pci_pcie_cap(pdev);
-	if (pos <= 0) {
+	if (!pci_is_pcie(pdev)) {
 		dev_err(&pdev->dev, "Cannot find PCI Express capability, aborting\n");
 		goto err_out_free_res;
 	}
@@ -9813,14 +9811,11 @@ static int __devinit niu_pci_init_one(struct pci_dev *pdev,
 		goto err_out_free_dev;
 	}
 
-	pci_read_config_word(pdev, pos + PCI_EXP_DEVCTL, &val16);
-	val16 &= ~PCI_EXP_DEVCTL_NOSNOOP_EN;
-	val16 |= (PCI_EXP_DEVCTL_CERE |
-		  PCI_EXP_DEVCTL_NFERE |
-		  PCI_EXP_DEVCTL_FERE |
-		  PCI_EXP_DEVCTL_URRE |
-		  PCI_EXP_DEVCTL_RELAX_EN);
-	pci_write_config_word(pdev, pos + PCI_EXP_DEVCTL, val16);
+	pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
+		PCI_EXP_DEVCTL_NOSNOOP_EN,
+		PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE |
+		PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE |
+		PCI_EXP_DEVCTL_RELAX_EN);
 
 	dma_mask = DMA_BIT_MASK(44);
 	err = pci_set_dma_mask(pdev, dma_mask);
@@ -9932,7 +9927,7 @@ static int niu_suspend(struct pci_dev *pdev, pm_message_t state)
 	if (!netif_running(dev))
 		return 0;
 
-	flush_work_sync(&np->reset_task);
+	flush_work(&np->reset_task);
 	niu_netif_stop(np);
 
 	del_timer_sync(&np->timer);
diff --git a/drivers/net/ethernet/sun/sunbmac.c b/drivers/net/ethernet/sun/sunbmac.c
index 967fe8cb476..c9c977bf02a 100644
--- a/drivers/net/ethernet/sun/sunbmac.c
+++ b/drivers/net/ethernet/sun/sunbmac.c
@@ -212,7 +212,6 @@ static void bigmac_clean_rings(struct bigmac *bp)
 static void bigmac_init_rings(struct bigmac *bp, int from_irq)
 {
 	struct bmac_init_block *bb = bp->bmac_block;
-	struct net_device *dev = bp->dev;
 	int i;
 	gfp_t gfp_flags = GFP_KERNEL;
 
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 1b173a6145d..b26cbda5efa 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -32,7 +32,7 @@ config TI_DAVINCI_EMAC
 
 config TI_DAVINCI_MDIO
 	tristate "TI DaVinci MDIO Support"
-	depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 )
+	depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 || SOC_AM33XX )
 	select PHYLIB
 	---help---
 	  This driver supports TI's DaVinci MDIO module.
@@ -42,7 +42,7 @@ config TI_DAVINCI_MDIO
 
 config TI_DAVINCI_CPDMA
 	tristate "TI DaVinci CPDMA Support"
-	depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 )
+	depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 || SOC_AM33XX )
 	---help---
 	  This driver supports TI's DaVinci CPDMA dma engine.
 
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 1e5d85b06e7..df55e240374 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -28,6 +28,9 @@
 #include <linux/workqueue.h>
 #include <linux/delay.h>
 #include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/of_device.h>
 
 #include <linux/platform_data/cpsw.h>
 
@@ -383,6 +386,11 @@ static void _cpsw_adjust_link(struct cpsw_slave *slave,
 			mac_control |= BIT(7);	/* GIGABITEN	*/
 		if (phy->duplex)
 			mac_control |= BIT(0);	/* FULLDUPLEXEN	*/
+
+		/* set speed_in input in case RMII mode is used in 100Mbps */
+		if (phy->speed == 100)
+			mac_control |= BIT(15);
+
 		*link = true;
 	} else {
 		mac_control = 0;
@@ -709,6 +717,158 @@ static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv)
 	slave->sliver	= regs + data->sliver_reg_ofs;
 }
 
+static int cpsw_probe_dt(struct cpsw_platform_data *data,
+			 struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	struct device_node *slave_node;
+	int i = 0, ret;
+	u32 prop;
+
+	if (!node)
+		return -EINVAL;
+
+	if (of_property_read_u32(node, "slaves", &prop)) {
+		pr_err("Missing slaves property in the DT.\n");
+		return -EINVAL;
+	}
+	data->slaves = prop;
+
+	data->slave_data = kzalloc(sizeof(struct cpsw_slave_data) *
+				   data->slaves, GFP_KERNEL);
+	if (!data->slave_data) {
+		pr_err("Could not allocate slave memory.\n");
+		return -EINVAL;
+	}
+
+	data->no_bd_ram = of_property_read_bool(node, "no_bd_ram");
+
+	if (of_property_read_u32(node, "cpdma_channels", &prop)) {
+		pr_err("Missing cpdma_channels property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->channels = prop;
+
+	if (of_property_read_u32(node, "host_port_no", &prop)) {
+		pr_err("Missing host_port_no property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->host_port_num = prop;
+
+	if (of_property_read_u32(node, "cpdma_reg_ofs", &prop)) {
+		pr_err("Missing cpdma_reg_ofs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->cpdma_reg_ofs = prop;
+
+	if (of_property_read_u32(node, "cpdma_sram_ofs", &prop)) {
+		pr_err("Missing cpdma_sram_ofs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->cpdma_sram_ofs = prop;
+
+	if (of_property_read_u32(node, "ale_reg_ofs", &prop)) {
+		pr_err("Missing ale_reg_ofs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->ale_reg_ofs = prop;
+
+	if (of_property_read_u32(node, "ale_entries", &prop)) {
+		pr_err("Missing ale_entries property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->ale_entries = prop;
+
+	if (of_property_read_u32(node, "host_port_reg_ofs", &prop)) {
+		pr_err("Missing host_port_reg_ofs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->host_port_reg_ofs = prop;
+
+	if (of_property_read_u32(node, "hw_stats_reg_ofs", &prop)) {
+		pr_err("Missing hw_stats_reg_ofs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->hw_stats_reg_ofs = prop;
+
+	if (of_property_read_u32(node, "bd_ram_ofs", &prop)) {
+		pr_err("Missing bd_ram_ofs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->bd_ram_ofs = prop;
+
+	if (of_property_read_u32(node, "bd_ram_size", &prop)) {
+		pr_err("Missing bd_ram_size property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->bd_ram_size = prop;
+
+	if (of_property_read_u32(node, "rx_descs", &prop)) {
+		pr_err("Missing rx_descs property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->rx_descs = prop;
+
+	if (of_property_read_u32(node, "mac_control", &prop)) {
+		pr_err("Missing mac_control property in the DT.\n");
+		ret = -EINVAL;
+		goto error_ret;
+	}
+	data->mac_control = prop;
+
+	for_each_child_of_node(node, slave_node) {
+		struct cpsw_slave_data *slave_data = data->slave_data + i;
+		const char *phy_id = NULL;
+		const void *mac_addr = NULL;
+
+		if (of_property_read_string(slave_node, "phy_id", &phy_id)) {
+			pr_err("Missing slave[%d] phy_id property\n", i);
+			ret = -EINVAL;
+			goto error_ret;
+		}
+		slave_data->phy_id = phy_id;
+
+		if (of_property_read_u32(slave_node, "slave_reg_ofs", &prop)) {
+			pr_err("Missing slave[%d] slave_reg_ofs property\n", i);
+			ret = -EINVAL;
+			goto error_ret;
+		}
+		slave_data->slave_reg_ofs = prop;
+
+		if (of_property_read_u32(slave_node, "sliver_reg_ofs",
+					 &prop)) {
+			pr_err("Missing slave[%d] sliver_reg_ofs property\n",
+				i);
+			ret = -EINVAL;
+			goto error_ret;
+		}
+		slave_data->sliver_reg_ofs = prop;
+
+		mac_addr = of_get_mac_address(slave_node);
+		if (mac_addr)
+			memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
+
+		i++;
+	}
+
+	return 0;
+
+error_ret:
+	kfree(data->slave_data);
+	return ret;
+}
+
 static int __devinit cpsw_probe(struct platform_device *pdev)
 {
 	struct cpsw_platform_data	*data = pdev->dev.platform_data;
@@ -720,11 +880,6 @@ static int __devinit cpsw_probe(struct platform_device *pdev)
 	struct resource			*res;
 	int ret = 0, i, k = 0;
 
-	if (!data) {
-		pr_err("platform data missing\n");
-		return -ENODEV;
-	}
-
 	ndev = alloc_etherdev(sizeof(struct cpsw_priv));
 	if (!ndev) {
 		pr_err("error allocating net_device\n");
@@ -734,13 +889,19 @@ static int __devinit cpsw_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ndev);
 	priv = netdev_priv(ndev);
 	spin_lock_init(&priv->lock);
-	priv->data = *data;
 	priv->pdev = pdev;
 	priv->ndev = ndev;
 	priv->dev  = &ndev->dev;
 	priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
 	priv->rx_packet_max = max(rx_packet_max, 128);
 
+	if (cpsw_probe_dt(&priv->data, pdev)) {
+		pr_err("cpsw: platform data missing\n");
+		ret = -ENODEV;
+		goto clean_ndev_ret;
+	}
+	data = &priv->data;
+
 	if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
 		memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
 		pr_info("Detected MACID = %pM", priv->mac_addr);
@@ -996,11 +1157,17 @@ static const struct dev_pm_ops cpsw_pm_ops = {
 	.resume		= cpsw_resume,
 };
 
+static const struct of_device_id cpsw_of_mtable[] = {
+	{ .compatible = "ti,cpsw", },
+	{ /* sentinel */ },
+};
+
 static struct platform_driver cpsw_driver = {
 	.driver = {
 		.name	 = "cpsw",
 		.owner	 = THIS_MODULE,
 		.pm	 = &cpsw_pm_ops,
+		.of_match_table = of_match_ptr(cpsw_of_mtable),
 	},
 	.probe = cpsw_probe,
 	.remove = __devexit_p(cpsw_remove),
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index 3b5c4571b55..d15c888e9df 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -538,11 +538,12 @@ EXPORT_SYMBOL_GPL(cpdma_chan_create);
 
 int cpdma_chan_destroy(struct cpdma_chan *chan)
 {
-	struct cpdma_ctlr *ctlr = chan->ctlr;
+	struct cpdma_ctlr *ctlr;
 	unsigned long flags;
 
 	if (!chan)
 		return -EINVAL;
+	ctlr = chan->ctlr;
 
 	spin_lock_irqsave(&ctlr->lock, flags);
 	if (chan->state != CPDMA_STATE_IDLE)
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index cd7ee204e94..51a96dbee9a 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -36,6 +36,8 @@
 #include <linux/io.h>
 #include <linux/pm_runtime.h>
 #include <linux/davinci_emac.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 /*
  * This timeout definition is a worst-case ultra defensive measure against
@@ -289,6 +291,25 @@ static int davinci_mdio_write(struct mii_bus *bus, int phy_id,
 	return 0;
 }
 
+static int davinci_mdio_probe_dt(struct mdio_platform_data *data,
+			 struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	u32 prop;
+
+	if (!node)
+		return -EINVAL;
+
+	if (of_property_read_u32(node, "bus_freq", &prop)) {
+		pr_err("Missing bus_freq property in the DT.\n");
+		return -EINVAL;
+	}
+	data->bus_freq = prop;
+
+	return 0;
+}
+
+
 static int __devinit davinci_mdio_probe(struct platform_device *pdev)
 {
 	struct mdio_platform_data *pdata = pdev->dev.platform_data;
@@ -304,8 +325,6 @@ static int __devinit davinci_mdio_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	data->pdata = pdata ? (*pdata) : default_pdata;
-
 	data->bus = mdiobus_alloc();
 	if (!data->bus) {
 		dev_err(dev, "failed to alloc mii bus\n");
@@ -313,14 +332,22 @@ static int __devinit davinci_mdio_probe(struct platform_device *pdev)
 		goto bail_out;
 	}
 
+	if (dev->of_node) {
+		if (davinci_mdio_probe_dt(&data->pdata, pdev))
+			data->pdata = default_pdata;
+		snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s", pdev->name);
+	} else {
+		data->pdata = pdata ? (*pdata) : default_pdata;
+		snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x",
+			 pdev->name, pdev->id);
+	}
+
 	data->bus->name		= dev_name(dev);
 	data->bus->read		= davinci_mdio_read,
 	data->bus->write	= davinci_mdio_write,
 	data->bus->reset	= davinci_mdio_reset,
 	data->bus->parent	= dev;
 	data->bus->priv		= data;
-	snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x",
-		pdev->name, pdev->id);
 
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
@@ -394,8 +421,10 @@ static int __devexit davinci_mdio_remove(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct davinci_mdio_data *data = dev_get_drvdata(dev);
 
-	if (data->bus)
+	if (data->bus) {
+		mdiobus_unregister(data->bus);
 		mdiobus_free(data->bus);
+	}
 
 	if (data->clk)
 		clk_put(data->clk);
@@ -454,11 +483,17 @@ static const struct dev_pm_ops davinci_mdio_pm_ops = {
 	.resume		= davinci_mdio_resume,
 };
 
+static const struct of_device_id davinci_mdio_of_mtable[] = {
+	{ .compatible = "ti,davinci_mdio", },
+	{ /* sentinel */ },
+};
+
 static struct platform_driver davinci_mdio_driver = {
 	.driver = {
 		.name	 = "davinci_mdio",
 		.owner	 = THIS_MODULE,
 		.pm	 = &davinci_mdio_pm_ops,
+		.of_match_table = of_match_ptr(davinci_mdio_of_mtable),
 	},
 	.probe = davinci_mdio_probe,
 	.remove = __devexit_p(davinci_mdio_remove),
diff --git a/drivers/net/ethernet/tundra/tsi108_eth.c b/drivers/net/ethernet/tundra/tsi108_eth.c
index 277c93e9ff4..8fa947a2d92 100644
--- a/drivers/net/ethernet/tundra/tsi108_eth.c
+++ b/drivers/net/ethernet/tundra/tsi108_eth.c
@@ -1359,7 +1359,6 @@ static int tsi108_open(struct net_device *dev)
 		}
 
 		data->rxskbs[i] = skb;
-		data->rxskbs[i] = skb;
 		data->rxring[i].buf0 = virt_to_phys(data->rxskbs[i]->data);
 		data->rxring[i].misc = TSI108_RX_OWN | TSI108_RX_INT;
 	}
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index a5826a3111a..2c08bf6e7bf 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -637,8 +637,7 @@ static int __devinit w5100_hw_probe(struct platform_device *pdev)
 	if (data && is_valid_ether_addr(data->mac_addr)) {
 		memcpy(ndev->dev_addr, data->mac_addr, ETH_ALEN);
 	} else {
-		eth_random_addr(ndev->dev_addr);
-		ndev->addr_assign_type |= NET_ADDR_RANDOM;
+		eth_hw_addr_random(ndev);
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index bdd8891c215..88943d90c76 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -557,8 +557,7 @@ static int __devinit w5300_hw_probe(struct platform_device *pdev)
 	if (data && is_valid_ether_addr(data->mac_addr)) {
 		memcpy(ndev->dev_addr, data->mac_addr, ETH_ALEN);
 	} else {
-		eth_random_addr(ndev->dev_addr);
-		ndev->addr_assign_type |= NET_ADDR_RANDOM;
+		eth_hw_addr_random(ndev);
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 482648fcf0b..98934bdf6ac 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1003,6 +1003,7 @@ static int ixp4xx_nway_reset(struct net_device *dev)
 }
 
 int ixp46x_phc_index = -1;
+EXPORT_SYMBOL_GPL(ixp46x_phc_index);
 
 static int ixp4xx_get_ts_info(struct net_device *dev,
 			      struct ethtool_ts_info *info)
diff --git a/drivers/net/fddi/skfp/pmf.c b/drivers/net/fddi/skfp/pmf.c
index 24d8566cfd8..441b4dc7945 100644
--- a/drivers/net/fddi/skfp/pmf.c
+++ b/drivers/net/fddi/skfp/pmf.c
@@ -673,7 +673,7 @@ void smt_add_para(struct s_smc *smc, struct s_pcon *pcon, u_short para,
 			sm_pm_get_ls(smc,port_to_mib(smc,port))) ;
 		break ;
 	case SMT_P_REASON :
-		* (u_long *) to = 0 ;
+		*(u32 *)to = 0 ;
 		sp_len = 4 ;
 		goto sp_done ;
 	case SMT_P1033 :			/* time stamp */
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 95ceb359304..5fd6f467432 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -35,6 +35,7 @@ struct hv_netvsc_packet;
 /* Represent the xfer page packet which contains 1 or more netvsc packet */
 struct xferpage_packet {
 	struct list_head list_ent;
+	u32 status;
 
 	/* # of netvsc packets this xfer packet contains */
 	u32 count;
@@ -47,6 +48,7 @@ struct xferpage_packet {
 struct hv_netvsc_packet {
 	/* Bookkeeping stuff */
 	struct list_head list_ent;
+	u32 status;
 
 	struct hv_device *device;
 	bool is_data_pkt;
@@ -465,8 +467,6 @@ struct nvsp_message {
 
 #define NETVSC_RECEIVE_BUFFER_ID		0xcafe
 
-#define NETVSC_RECEIVE_SG_COUNT			1
-
 /* Preallocated receive packets */
 #define NETVSC_RECEIVE_PACKETLIST_COUNT		256
 
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 6cee2917eb0..1cd77483da5 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -383,13 +383,6 @@ int netvsc_device_remove(struct hv_device *device)
 	unsigned long flags;
 
 	net_device = hv_get_drvdata(device);
-	spin_lock_irqsave(&device->channel->inbound_lock, flags);
-	net_device->destroy = true;
-	spin_unlock_irqrestore(&device->channel->inbound_lock, flags);
-
-	/* Wait for all send completions */
-	wait_event(net_device->wait_drain,
-		   atomic_read(&net_device->num_outstanding_sends) == 0);
 
 	netvsc_disconnect_vsp(net_device);
 
@@ -565,7 +558,7 @@ int netvsc_send(struct hv_device *device,
 }
 
 static void netvsc_send_recv_completion(struct hv_device *device,
-					u64 transaction_id)
+					u64 transaction_id, u32 status)
 {
 	struct nvsp_message recvcompMessage;
 	int retries = 0;
@@ -578,9 +571,7 @@ static void netvsc_send_recv_completion(struct hv_device *device,
 	recvcompMessage.hdr.msg_type =
 				NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE;
 
-	/* FIXME: Pass in the status */
-	recvcompMessage.msg.v1_msg.send_rndis_pkt_complete.status =
-		NVSP_STAT_SUCCESS;
+	recvcompMessage.msg.v1_msg.send_rndis_pkt_complete.status = status;
 
 retry_send_cmplt:
 	/* Send the completion */
@@ -620,6 +611,7 @@ static void netvsc_receive_completion(void *context)
 	bool fsend_receive_comp = false;
 	unsigned long flags;
 	struct net_device *ndev;
+	u32 status = NVSP_STAT_NONE;
 
 	/*
 	 * Even though it seems logical to do a GetOutboundNetDevice() here to
@@ -634,6 +626,9 @@ static void netvsc_receive_completion(void *context)
 	/* Overloading use of the lock. */
 	spin_lock_irqsave(&net_device->recv_pkt_list_lock, flags);
 
+	if (packet->status != NVSP_STAT_SUCCESS)
+		packet->xfer_page_pkt->status = NVSP_STAT_FAIL;
+
 	packet->xfer_page_pkt->count--;
 
 	/*
@@ -643,6 +638,7 @@ static void netvsc_receive_completion(void *context)
 	if (packet->xfer_page_pkt->count == 0) {
 		fsend_receive_comp = true;
 		transaction_id = packet->completion.recv.recv_completion_tid;
+		status = packet->xfer_page_pkt->status;
 		list_add_tail(&packet->xfer_page_pkt->list_ent,
 			      &net_device->recv_pkt_list);
 
@@ -654,7 +650,7 @@ static void netvsc_receive_completion(void *context)
 
 	/* Send a receive completion for the xfer page packet */
 	if (fsend_receive_comp)
-		netvsc_send_recv_completion(device, transaction_id);
+		netvsc_send_recv_completion(device, transaction_id, status);
 
 }
 
@@ -743,7 +739,8 @@ static void netvsc_receive(struct hv_device *device,
 				       flags);
 
 		netvsc_send_recv_completion(device,
-					    vmxferpage_packet->d.trans_id);
+					    vmxferpage_packet->d.trans_id,
+					    NVSP_STAT_FAIL);
 
 		return;
 	}
@@ -751,6 +748,7 @@ static void netvsc_receive(struct hv_device *device,
 	/* Remove the 1st packet to represent the xfer page packet itself */
 	xferpage_packet = (struct xferpage_packet *)listHead.next;
 	list_del(&xferpage_packet->list_ent);
+	xferpage_packet->status = NVSP_STAT_SUCCESS;
 
 	/* This is how much we can satisfy */
 	xferpage_packet->count = count - 1;
@@ -767,6 +765,7 @@ static void netvsc_receive(struct hv_device *device,
 		list_del(&netvsc_packet->list_ent);
 
 		/* Initialize the netvsc packet */
+		netvsc_packet->status = NVSP_STAT_SUCCESS;
 		netvsc_packet->xfer_page_pkt = xferpage_packet;
 		netvsc_packet->completion.recv.recv_completion =
 					netvsc_receive_completion;
@@ -911,9 +910,7 @@ int netvsc_device_add(struct hv_device *device, void *additional_info)
 	INIT_LIST_HEAD(&net_device->recv_pkt_list);
 
 	for (i = 0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++) {
-		packet = kzalloc(sizeof(struct hv_netvsc_packet) +
-				 (NETVSC_RECEIVE_SG_COUNT *
-				  sizeof(struct hv_page_buffer)), GFP_KERNEL);
+		packet = kzalloc(sizeof(struct hv_netvsc_packet), GFP_KERNEL);
 		if (!packet)
 			break;
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 8c5a1c43c81..f825a629a69 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -265,6 +265,7 @@ int netvsc_recv_callback(struct hv_device *device_obj,
 	if (!net) {
 		netdev_err(net, "got receive callback but net device"
 			" not initialized yet\n");
+		packet->status = NVSP_STAT_FAIL;
 		return 0;
 	}
 
@@ -272,6 +273,7 @@ int netvsc_recv_callback(struct hv_device *device_obj,
 	skb = netdev_alloc_skb_ip_align(net, packet->total_data_buflen);
 	if (unlikely(!skb)) {
 		++net->stats.rx_dropped;
+		packet->status = NVSP_STAT_FAIL;
 		return 0;
 	}
 
@@ -400,7 +402,7 @@ static void netvsc_send_garp(struct work_struct *w)
 	ndev_ctx = container_of(w, struct net_device_context, dwork.work);
 	net_device = hv_get_drvdata(ndev_ctx->device_ctx);
 	net = net_device->ndev;
-	netif_notify_peers(net);
+	netdev_notify_peers(net);
 }
 
 
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index e5d6146937f..928148cc322 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -32,23 +32,31 @@
 #include "hyperv_net.h"
 
 
+#define RNDIS_EXT_LEN 100
 struct rndis_request {
 	struct list_head list_ent;
 	struct completion  wait_event;
 
+	struct rndis_message response_msg;
 	/*
-	 * FIXME: We assumed a fixed size response here. If we do ever need to
-	 * handle a bigger response, we can either define a max response
-	 * message or add a response buffer variable above this field
+	 * The buffer for extended info after the RNDIS response message. It's
+	 * referenced based on the data offset in the RNDIS message. Its size
+	 * is enough for current needs, and should be sufficient for the near
+	 * future.
 	 */
-	struct rndis_message response_msg;
+	u8 response_ext[RNDIS_EXT_LEN];
 
 	/* Simplify allocation by having a netvsc packet inline */
 	struct hv_netvsc_packet	pkt;
-	struct hv_page_buffer buf;
-	/* FIXME: We assumed a fixed size request here. */
+	/* Set 2 pages for rndis requests crossing page boundary */
+	struct hv_page_buffer buf[2];
+
 	struct rndis_message request_msg;
-	u8 ext[100];
+	/*
+	 * The buffer for the extended info after the RNDIS request message.
+	 * It is referenced and sized in a similar way as response_ext.
+	 */
+	u8 request_ext[RNDIS_EXT_LEN];
 };
 
 static void rndis_filter_send_completion(void *ctx);
@@ -221,6 +229,18 @@ static int rndis_filter_send_request(struct rndis_device *dev,
 	packet->page_buf[0].offset =
 		(unsigned long)&req->request_msg & (PAGE_SIZE - 1);
 
+	/* Add one page_buf when request_msg crossing page boundary */
+	if (packet->page_buf[0].offset + packet->page_buf[0].len > PAGE_SIZE) {
+		packet->page_buf_cnt++;
+		packet->page_buf[0].len = PAGE_SIZE -
+			packet->page_buf[0].offset;
+		packet->page_buf[1].pfn = virt_to_phys((void *)&req->request_msg
+			+ packet->page_buf[0].len) >> PAGE_SHIFT;
+		packet->page_buf[1].offset = 0;
+		packet->page_buf[1].len = req->request_msg.msg_len -
+			packet->page_buf[0].len;
+	}
+
 	packet->completion.send.send_completion_ctx = req;/* packet; */
 	packet->completion.send.send_completion =
 		rndis_filter_send_request_completion;
@@ -255,7 +275,8 @@ static void rndis_filter_receive_response(struct rndis_device *dev,
 	spin_unlock_irqrestore(&dev->request_lock, flags);
 
 	if (found) {
-		if (resp->msg_len <= sizeof(struct rndis_message)) {
+		if (resp->msg_len <=
+		    sizeof(struct rndis_message) + RNDIS_EXT_LEN) {
 			memcpy(&request->response_msg, resp,
 			       resp->msg_len);
 		} else {
@@ -392,9 +413,12 @@ int rndis_filter_receive(struct hv_device *dev,
 	struct rndis_device *rndis_dev;
 	struct rndis_message *rndis_msg;
 	struct net_device *ndev;
+	int ret = 0;
 
-	if (!net_dev)
-		return -EINVAL;
+	if (!net_dev) {
+		ret = -EINVAL;
+		goto exit;
+	}
 
 	ndev = net_dev->ndev;
 
@@ -402,14 +426,16 @@ int rndis_filter_receive(struct hv_device *dev,
 	if (!net_dev->extension) {
 		netdev_err(ndev, "got rndis message but no rndis device - "
 			  "dropping this message!\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto exit;
 	}
 
 	rndis_dev = (struct rndis_device *)net_dev->extension;
 	if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) {
 		netdev_err(ndev, "got rndis message but rndis device "
 			   "uninitialized...dropping this message!\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto exit;
 	}
 
 	rndis_msg = pkt->data;
@@ -441,7 +467,11 @@ int rndis_filter_receive(struct hv_device *dev,
 		break;
 	}
 
-	return 0;
+exit:
+	if (ret != 0)
+		pkt->status = NVSP_STAT_FAIL;
+
+	return ret;
 }
 
 static int rndis_filter_query_device(struct rndis_device *dev, u32 oid,
@@ -641,6 +671,7 @@ int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter)
 	if (t == 0) {
 		netdev_err(ndev,
 			"timeout before we got a set response...\n");
+		ret = -ETIMEDOUT;
 		/*
 		 * We can't deallocate the request since we may still receive a
 		 * send completion for it.
@@ -678,8 +709,7 @@ static int rndis_filter_init_device(struct rndis_device *dev)
 	init = &request->request_msg.msg.init_req;
 	init->major_ver = RNDIS_MAJOR_VERSION;
 	init->minor_ver = RNDIS_MINOR_VERSION;
-	/* FIXME: Use 1536 - rounded ethernet frame size */
-	init->max_xfer_size = 2048;
+	init->max_xfer_size = 0x4000;
 
 	dev->state = RNDIS_DEV_INITIALIZING;
 
@@ -718,6 +748,9 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
 {
 	struct rndis_request *request;
 	struct rndis_halt_request *halt;
+	struct netvsc_device *nvdev = dev->net_dev;
+	struct hv_device *hdev = nvdev->dev;
+	ulong flags;
 
 	/* Attempt to do a rndis device halt */
 	request = get_rndis_request(dev, RNDIS_MSG_HALT,
@@ -735,6 +768,14 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
 	dev->state = RNDIS_DEV_UNINITIALIZED;
 
 cleanup:
+	spin_lock_irqsave(&hdev->channel->inbound_lock, flags);
+	nvdev->destroy = true;
+	spin_unlock_irqrestore(&hdev->channel->inbound_lock, flags);
+
+	/* Wait for all send completions */
+	wait_event(nvdev->wait_drain,
+		atomic_read(&nvdev->num_outstanding_sends) == 0);
+
 	if (request)
 		put_rndis_request(dev, request);
 	return;
diff --git a/drivers/ieee802154/Kconfig b/drivers/net/ieee802154/Kconfig
index 1fc4eefc20e..08ae4655423 100644
--- a/drivers/ieee802154/Kconfig
+++ b/drivers/net/ieee802154/Kconfig
@@ -34,3 +34,14 @@ config IEEE802154_AT86RF230
         depends on IEEE802154_DRIVERS && MAC802154
         tristate "AT86RF230/231 transceiver driver"
         depends on SPI
+
+config IEEE802154_MRF24J40
+       tristate "Microchip MRF24J40 transceiver driver"
+       depends on IEEE802154_DRIVERS && MAC802154
+       depends on SPI
+       ---help---
+         Say Y here to enable the MRF24J20 SPI 802.15.4 wireless
+         controller.
+
+         This driver can also be built as a module. To do so, say M here.
+         the module will be called 'mrf24j40'.
diff --git a/drivers/ieee802154/Makefile b/drivers/net/ieee802154/Makefile
index 4f4371d3aa7..abb0c08decb 100644
--- a/drivers/ieee802154/Makefile
+++ b/drivers/net/ieee802154/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_IEEE802154_FAKEHARD) += fakehard.o
 obj-$(CONFIG_IEEE802154_FAKELB) += fakelb.o
 obj-$(CONFIG_IEEE802154_AT86RF230) += at86rf230.o
+obj-$(CONFIG_IEEE802154_MRF24J40) += mrf24j40.o
diff --git a/drivers/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 5d309408395..ba753d87a32 100644
--- a/drivers/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -952,17 +952,7 @@ static struct spi_driver at86rf230_driver = {
 	.resume     = at86rf230_resume,
 };
 
-static int __init at86rf230_init(void)
-{
-	return spi_register_driver(&at86rf230_driver);
-}
-module_init(at86rf230_init);
-
-static void __exit at86rf230_exit(void)
-{
-	spi_unregister_driver(&at86rf230_driver);
-}
-module_exit(at86rf230_exit);
+module_spi_driver(at86rf230_driver);
 
 MODULE_DESCRIPTION("AT86RF230 Transceiver Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/ieee802154/fakehard.c b/drivers/net/ieee802154/fakehard.c
index 73d45315940..7d39add7d46 100644
--- a/drivers/ieee802154/fakehard.c
+++ b/drivers/net/ieee802154/fakehard.c
@@ -446,4 +446,3 @@ static __exit void fake_exit(void)
 module_init(fake_init);
 module_exit(fake_exit);
 MODULE_LICENSE("GPL");
-
diff --git a/drivers/ieee802154/fakelb.c b/drivers/net/ieee802154/fakelb.c
index e7456fcd091..e7456fcd091 100644
--- a/drivers/ieee802154/fakelb.c
+++ b/drivers/net/ieee802154/fakelb.c
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
new file mode 100644
index 00000000000..ed752169398
--- /dev/null
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -0,0 +1,767 @@
+/*
+ * Driver for Microchip MRF24J40 802.15.4 Wireless-PAN Networking controller
+ *
+ * Copyright (C) 2012 Alan Ott <alan@signal11.us>
+ *                    Signal 11 Software
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/spi/spi.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <net/wpan-phy.h>
+#include <net/mac802154.h>
+
+/* MRF24J40 Short Address Registers */
+#define REG_RXMCR    0x00  /* Receive MAC control */
+#define REG_PANIDL   0x01  /* PAN ID (low) */
+#define REG_PANIDH   0x02  /* PAN ID (high) */
+#define REG_SADRL    0x03  /* Short address (low) */
+#define REG_SADRH    0x04  /* Short address (high) */
+#define REG_EADR0    0x05  /* Long address (low) (high is EADR7) */
+#define REG_TXMCR    0x11  /* Transmit MAC control */
+#define REG_PACON0   0x16  /* Power Amplifier Control */
+#define REG_PACON1   0x17  /* Power Amplifier Control */
+#define REG_PACON2   0x18  /* Power Amplifier Control */
+#define REG_TXNCON   0x1B  /* Transmit Normal FIFO Control */
+#define REG_TXSTAT   0x24  /* TX MAC Status Register */
+#define REG_SOFTRST  0x2A  /* Soft Reset */
+#define REG_TXSTBL   0x2E  /* TX Stabilization */
+#define REG_INTSTAT  0x31  /* Interrupt Status */
+#define REG_INTCON   0x32  /* Interrupt Control */
+#define REG_RFCTL    0x36  /* RF Control Mode Register */
+#define REG_BBREG1   0x39  /* Baseband Registers */
+#define REG_BBREG2   0x3A  /* */
+#define REG_BBREG6   0x3E  /* */
+#define REG_CCAEDTH  0x3F  /* Energy Detection Threshold */
+
+/* MRF24J40 Long Address Registers */
+#define REG_RFCON0     0x200  /* RF Control Registers */
+#define REG_RFCON1     0x201
+#define REG_RFCON2     0x202
+#define REG_RFCON3     0x203
+#define REG_RFCON5     0x205
+#define REG_RFCON6     0x206
+#define REG_RFCON7     0x207
+#define REG_RFCON8     0x208
+#define REG_RSSI       0x210
+#define REG_SLPCON0    0x211  /* Sleep Clock Control Registers */
+#define REG_SLPCON1    0x220
+#define REG_WAKETIMEL  0x222  /* Wake-up Time Match Value Low */
+#define REG_WAKETIMEH  0x223  /* Wake-up Time Match Value High */
+#define REG_RX_FIFO    0x300  /* Receive FIFO */
+
+/* Device configuration: Only channels 11-26 on page 0 are supported. */
+#define MRF24J40_CHAN_MIN 11
+#define MRF24J40_CHAN_MAX 26
+#define CHANNEL_MASK (((u32)1 << (MRF24J40_CHAN_MAX + 1)) \
+		      - ((u32)1 << MRF24J40_CHAN_MIN))
+
+#define TX_FIFO_SIZE 128 /* From datasheet */
+#define RX_FIFO_SIZE 144 /* From datasheet */
+#define SET_CHANNEL_DELAY_US 192 /* From datasheet */
+
+/* Device Private Data */
+struct mrf24j40 {
+	struct spi_device *spi;
+	struct ieee802154_dev *dev;
+
+	struct mutex buffer_mutex; /* only used to protect buf */
+	struct completion tx_complete;
+	struct work_struct irqwork;
+	u8 *buf; /* 3 bytes. Used for SPI single-register transfers. */
+};
+
+/* Read/Write SPI Commands for Short and Long Address registers. */
+#define MRF24J40_READSHORT(reg) ((reg) << 1)
+#define MRF24J40_WRITESHORT(reg) ((reg) << 1 | 1)
+#define MRF24J40_READLONG(reg) (1 << 15 | (reg) << 5)
+#define MRF24J40_WRITELONG(reg) (1 << 15 | (reg) << 5 | 1 << 4)
+
+/* Maximum speed to run the device at. TODO: Get the real max value from
+ * someone at Microchip since it isn't in the datasheet. */
+#define MAX_SPI_SPEED_HZ 1000000
+
+#define printdev(X) (&X->spi->dev)
+
+static int write_short_reg(struct mrf24j40 *devrec, u8 reg, u8 value)
+{
+	int ret;
+	struct spi_message msg;
+	struct spi_transfer xfer = {
+		.len = 2,
+		.tx_buf = devrec->buf,
+		.rx_buf = devrec->buf,
+	};
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	mutex_lock(&devrec->buffer_mutex);
+	devrec->buf[0] = MRF24J40_WRITESHORT(reg);
+	devrec->buf[1] = value;
+
+	ret = spi_sync(devrec->spi, &msg);
+	if (ret)
+		dev_err(printdev(devrec),
+			"SPI write Failed for short register 0x%hhx\n", reg);
+
+	mutex_unlock(&devrec->buffer_mutex);
+	return ret;
+}
+
+static int read_short_reg(struct mrf24j40 *devrec, u8 reg, u8 *val)
+{
+	int ret = -1;
+	struct spi_message msg;
+	struct spi_transfer xfer = {
+		.len = 2,
+		.tx_buf = devrec->buf,
+		.rx_buf = devrec->buf,
+	};
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	mutex_lock(&devrec->buffer_mutex);
+	devrec->buf[0] = MRF24J40_READSHORT(reg);
+	devrec->buf[1] = 0;
+
+	ret = spi_sync(devrec->spi, &msg);
+	if (ret)
+		dev_err(printdev(devrec),
+			"SPI read Failed for short register 0x%hhx\n", reg);
+	else
+		*val = devrec->buf[1];
+
+	mutex_unlock(&devrec->buffer_mutex);
+	return ret;
+}
+
+static int read_long_reg(struct mrf24j40 *devrec, u16 reg, u8 *value)
+{
+	int ret;
+	u16 cmd;
+	struct spi_message msg;
+	struct spi_transfer xfer = {
+		.len = 3,
+		.tx_buf = devrec->buf,
+		.rx_buf = devrec->buf,
+	};
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	cmd = MRF24J40_READLONG(reg);
+	mutex_lock(&devrec->buffer_mutex);
+	devrec->buf[0] = cmd >> 8 & 0xff;
+	devrec->buf[1] = cmd & 0xff;
+	devrec->buf[2] = 0;
+
+	ret = spi_sync(devrec->spi, &msg);
+	if (ret)
+		dev_err(printdev(devrec),
+			"SPI read Failed for long register 0x%hx\n", reg);
+	else
+		*value = devrec->buf[2];
+
+	mutex_unlock(&devrec->buffer_mutex);
+	return ret;
+}
+
+static int write_long_reg(struct mrf24j40 *devrec, u16 reg, u8 val)
+{
+	int ret;
+	u16 cmd;
+	struct spi_message msg;
+	struct spi_transfer xfer = {
+		.len = 3,
+		.tx_buf = devrec->buf,
+		.rx_buf = devrec->buf,
+	};
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&xfer, &msg);
+
+	cmd = MRF24J40_WRITELONG(reg);
+	mutex_lock(&devrec->buffer_mutex);
+	devrec->buf[0] = cmd >> 8 & 0xff;
+	devrec->buf[1] = cmd & 0xff;
+	devrec->buf[2] = val;
+
+	ret = spi_sync(devrec->spi, &msg);
+	if (ret)
+		dev_err(printdev(devrec),
+			"SPI write Failed for long register 0x%hx\n", reg);
+
+	mutex_unlock(&devrec->buffer_mutex);
+	return ret;
+}
+
+/* This function relies on an undocumented write method. Once a write command
+   and address is set, as many bytes of data as desired can be clocked into
+   the device. The datasheet only shows setting one byte at a time. */
+static int write_tx_buf(struct mrf24j40 *devrec, u16 reg,
+			const u8 *data, size_t length)
+{
+	int ret;
+	u16 cmd;
+	u8 lengths[2];
+	struct spi_message msg;
+	struct spi_transfer addr_xfer = {
+		.len = 2,
+		.tx_buf = devrec->buf,
+	};
+	struct spi_transfer lengths_xfer = {
+		.len = 2,
+		.tx_buf = &lengths, /* TODO: Is DMA really required for SPI? */
+	};
+	struct spi_transfer data_xfer = {
+		.len = length,
+		.tx_buf = data,
+	};
+
+	/* Range check the length. 2 bytes are used for the length fields.*/
+	if (length > TX_FIFO_SIZE-2) {
+		dev_err(printdev(devrec), "write_tx_buf() was passed too large a buffer. Performing short write.\n");
+		length = TX_FIFO_SIZE-2;
+	}
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&addr_xfer, &msg);
+	spi_message_add_tail(&lengths_xfer, &msg);
+	spi_message_add_tail(&data_xfer, &msg);
+
+	cmd = MRF24J40_WRITELONG(reg);
+	mutex_lock(&devrec->buffer_mutex);
+	devrec->buf[0] = cmd >> 8 & 0xff;
+	devrec->buf[1] = cmd & 0xff;
+	lengths[0] = 0x0; /* Header Length. Set to 0 for now. TODO */
+	lengths[1] = length; /* Total length */
+
+	ret = spi_sync(devrec->spi, &msg);
+	if (ret)
+		dev_err(printdev(devrec), "SPI write Failed for TX buf\n");
+
+	mutex_unlock(&devrec->buffer_mutex);
+	return ret;
+}
+
+static int mrf24j40_read_rx_buf(struct mrf24j40 *devrec,
+				u8 *data, u8 *len, u8 *lqi)
+{
+	u8 rx_len;
+	u8 addr[2];
+	u8 lqi_rssi[2];
+	u16 cmd;
+	int ret;
+	struct spi_message msg;
+	struct spi_transfer addr_xfer = {
+		.len = 2,
+		.tx_buf = &addr,
+	};
+	struct spi_transfer data_xfer = {
+		.len = 0x0, /* set below */
+		.rx_buf = data,
+	};
+	struct spi_transfer status_xfer = {
+		.len = 2,
+		.rx_buf = &lqi_rssi,
+	};
+
+	/* Get the length of the data in the RX FIFO. The length in this
+	 * register exclues the 1-byte length field at the beginning. */
+	ret = read_long_reg(devrec, REG_RX_FIFO, &rx_len);
+	if (ret)
+		goto out;
+
+	/* Range check the RX FIFO length, accounting for the one-byte
+	 * length field at the begining. */
+	if (rx_len > RX_FIFO_SIZE-1) {
+		dev_err(printdev(devrec), "Invalid length read from device. Performing short read.\n");
+		rx_len = RX_FIFO_SIZE-1;
+	}
+
+	if (rx_len > *len) {
+		/* Passed in buffer wasn't big enough. Should never happen. */
+		dev_err(printdev(devrec), "Buffer not big enough. Performing short read\n");
+		rx_len = *len;
+	}
+
+	/* Set up the commands to read the data. */
+	cmd = MRF24J40_READLONG(REG_RX_FIFO+1);
+	addr[0] = cmd >> 8 & 0xff;
+	addr[1] = cmd & 0xff;
+	data_xfer.len = rx_len;
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&addr_xfer, &msg);
+	spi_message_add_tail(&data_xfer, &msg);
+	spi_message_add_tail(&status_xfer, &msg);
+
+	ret = spi_sync(devrec->spi, &msg);
+	if (ret) {
+		dev_err(printdev(devrec), "SPI RX Buffer Read Failed.\n");
+		goto out;
+	}
+
+	*lqi = lqi_rssi[0];
+	*len = rx_len;
+
+#ifdef DEBUG
+	print_hex_dump(KERN_DEBUG, "mrf24j40 rx: ",
+		DUMP_PREFIX_OFFSET, 16, 1, data, *len, 0);
+	printk(KERN_DEBUG "mrf24j40 rx: lqi: %02hhx rssi: %02hhx\n",
+		lqi_rssi[0], lqi_rssi[1]);
+#endif
+
+out:
+	return ret;
+}
+
+static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb)
+{
+	struct mrf24j40 *devrec = dev->priv;
+	u8 val;
+	int ret = 0;
+
+	dev_dbg(printdev(devrec), "tx packet of %d bytes\n", skb->len);
+
+	ret = write_tx_buf(devrec, 0x000, skb->data, skb->len);
+	if (ret)
+		goto err;
+
+	/* Set TXNTRIG bit of TXNCON to send packet */
+	ret = read_short_reg(devrec, REG_TXNCON, &val);
+	if (ret)
+		goto err;
+	val |= 0x1;
+	val &= ~0x4;
+	write_short_reg(devrec, REG_TXNCON, val);
+
+	INIT_COMPLETION(devrec->tx_complete);
+
+	/* Wait for the device to send the TX complete interrupt. */
+	ret = wait_for_completion_interruptible_timeout(
+						&devrec->tx_complete,
+						5 * HZ);
+	if (ret == -ERESTARTSYS)
+		goto err;
+	if (ret == 0) {
+		ret = -ETIMEDOUT;
+		goto err;
+	}
+
+	/* Check for send error from the device. */
+	ret = read_short_reg(devrec, REG_TXSTAT, &val);
+	if (ret)
+		goto err;
+	if (val & 0x1) {
+		dev_err(printdev(devrec), "Error Sending. Retry count exceeded\n");
+		ret = -ECOMM; /* TODO: Better error code ? */
+	} else
+		dev_dbg(printdev(devrec), "Packet Sent\n");
+
+err:
+
+	return ret;
+}
+
+static int mrf24j40_ed(struct ieee802154_dev *dev, u8 *level)
+{
+	/* TODO: */
+	printk(KERN_WARNING "mrf24j40: ed not implemented\n");
+	*level = 0;
+	return 0;
+}
+
+static int mrf24j40_start(struct ieee802154_dev *dev)
+{
+	struct mrf24j40 *devrec = dev->priv;
+	u8 val;
+	int ret;
+
+	dev_dbg(printdev(devrec), "start\n");
+
+	ret = read_short_reg(devrec, REG_INTCON, &val);
+	if (ret)
+		return ret;
+	val &= ~(0x1|0x8); /* Clear TXNIE and RXIE. Enable interrupts */
+	write_short_reg(devrec, REG_INTCON, val);
+
+	return 0;
+}
+
+static void mrf24j40_stop(struct ieee802154_dev *dev)
+{
+	struct mrf24j40 *devrec = dev->priv;
+	u8 val;
+	int ret;
+	dev_dbg(printdev(devrec), "stop\n");
+
+	ret = read_short_reg(devrec, REG_INTCON, &val);
+	if (ret)
+		return;
+	val |= 0x1|0x8; /* Set TXNIE and RXIE. Disable Interrupts */
+	write_short_reg(devrec, REG_INTCON, val);
+
+	return;
+}
+
+static int mrf24j40_set_channel(struct ieee802154_dev *dev,
+				int page, int channel)
+{
+	struct mrf24j40 *devrec = dev->priv;
+	u8 val;
+	int ret;
+
+	dev_dbg(printdev(devrec), "Set Channel %d\n", channel);
+
+	WARN_ON(page != 0);
+	WARN_ON(channel < MRF24J40_CHAN_MIN);
+	WARN_ON(channel > MRF24J40_CHAN_MAX);
+
+	/* Set Channel TODO */
+	val = (channel-11) << 4 | 0x03;
+	write_long_reg(devrec, REG_RFCON0, val);
+
+	/* RF Reset */
+	ret = read_short_reg(devrec, REG_RFCTL, &val);
+	if (ret)
+		return ret;
+	val |= 0x04;
+	write_short_reg(devrec, REG_RFCTL, val);
+	val &= ~0x04;
+	write_short_reg(devrec, REG_RFCTL, val);
+
+	udelay(SET_CHANNEL_DELAY_US); /* per datasheet */
+
+	return 0;
+}
+
+static int mrf24j40_filter(struct ieee802154_dev *dev,
+			   struct ieee802154_hw_addr_filt *filt,
+			   unsigned long changed)
+{
+	struct mrf24j40 *devrec = dev->priv;
+
+	dev_dbg(printdev(devrec), "filter\n");
+
+	if (changed & IEEE802515_AFILT_SADDR_CHANGED) {
+		/* Short Addr */
+		u8 addrh, addrl;
+		addrh = filt->short_addr >> 8 & 0xff;
+		addrl = filt->short_addr & 0xff;
+
+		write_short_reg(devrec, REG_SADRH, addrh);
+		write_short_reg(devrec, REG_SADRL, addrl);
+		dev_dbg(printdev(devrec),
+			"Set short addr to %04hx\n", filt->short_addr);
+	}
+
+	if (changed & IEEE802515_AFILT_IEEEADDR_CHANGED) {
+		/* Device Address */
+		int i;
+		for (i = 0; i < 8; i++)
+			write_short_reg(devrec, REG_EADR0+i,
+					filt->ieee_addr[i]);
+
+#ifdef DEBUG
+		printk(KERN_DEBUG "Set long addr to: ");
+		for (i = 0; i < 8; i++)
+			printk("%02hhx ", filt->ieee_addr[i]);
+		printk(KERN_DEBUG "\n");
+#endif
+	}
+
+	if (changed & IEEE802515_AFILT_PANID_CHANGED) {
+		/* PAN ID */
+		u8 panidl, panidh;
+		panidh = filt->pan_id >> 8 & 0xff;
+		panidl = filt->pan_id & 0xff;
+		write_short_reg(devrec, REG_PANIDH, panidh);
+		write_short_reg(devrec, REG_PANIDL, panidl);
+
+		dev_dbg(printdev(devrec), "Set PANID to %04hx\n", filt->pan_id);
+	}
+
+	if (changed & IEEE802515_AFILT_PANC_CHANGED) {
+		/* Pan Coordinator */
+		u8 val;
+		int ret;
+
+		ret = read_short_reg(devrec, REG_RXMCR, &val);
+		if (ret)
+			return ret;
+		if (filt->pan_coord)
+			val |= 0x8;
+		else
+			val &= ~0x8;
+		write_short_reg(devrec, REG_RXMCR, val);
+
+		/* REG_SLOTTED is maintained as default (unslotted/CSMA-CA).
+		 * REG_ORDER is maintained as default (no beacon/superframe).
+		 */
+
+		dev_dbg(printdev(devrec), "Set Pan Coord to %s\n",
+					filt->pan_coord ? "on" : "off");
+	}
+
+	return 0;
+}
+
+static int mrf24j40_handle_rx(struct mrf24j40 *devrec)
+{
+	u8 len = RX_FIFO_SIZE;
+	u8 lqi = 0;
+	u8 val;
+	int ret = 0;
+	struct sk_buff *skb;
+
+	/* Turn off reception of packets off the air. This prevents the
+	 * device from overwriting the buffer while we're reading it. */
+	ret = read_short_reg(devrec, REG_BBREG1, &val);
+	if (ret)
+		goto out;
+	val |= 4; /* SET RXDECINV */
+	write_short_reg(devrec, REG_BBREG1, val);
+
+	skb = alloc_skb(len, GFP_KERNEL);
+	if (!skb) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = mrf24j40_read_rx_buf(devrec, skb_put(skb, len), &len, &lqi);
+	if (ret < 0) {
+		dev_err(printdev(devrec), "Failure reading RX FIFO\n");
+		kfree_skb(skb);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	/* Cut off the checksum */
+	skb_trim(skb, len-2);
+
+	/* TODO: Other drivers call ieee20154_rx_irqsafe() here (eg: cc2040,
+	 * also from a workqueue).  I think irqsafe is not necessary here.
+	 * Can someone confirm? */
+	ieee802154_rx_irqsafe(devrec->dev, skb, lqi);
+
+	dev_dbg(printdev(devrec), "RX Handled\n");
+
+out:
+	/* Turn back on reception of packets off the air. */
+	ret = read_short_reg(devrec, REG_BBREG1, &val);
+	if (ret)
+		return ret;
+	val &= ~0x4; /* Clear RXDECINV */
+	write_short_reg(devrec, REG_BBREG1, val);
+
+	return ret;
+}
+
+static struct ieee802154_ops mrf24j40_ops = {
+	.owner = THIS_MODULE,
+	.xmit = mrf24j40_tx,
+	.ed = mrf24j40_ed,
+	.start = mrf24j40_start,
+	.stop = mrf24j40_stop,
+	.set_channel = mrf24j40_set_channel,
+	.set_hw_addr_filt = mrf24j40_filter,
+};
+
+static irqreturn_t mrf24j40_isr(int irq, void *data)
+{
+	struct mrf24j40 *devrec = data;
+
+	disable_irq_nosync(irq);
+
+	schedule_work(&devrec->irqwork);
+
+	return IRQ_HANDLED;
+}
+
+static void mrf24j40_isrwork(struct work_struct *work)
+{
+	struct mrf24j40 *devrec = container_of(work, struct mrf24j40, irqwork);
+	u8 intstat;
+	int ret;
+
+	/* Read the interrupt status */
+	ret = read_short_reg(devrec, REG_INTSTAT, &intstat);
+	if (ret)
+		goto out;
+
+	/* Check for TX complete */
+	if (intstat & 0x1)
+		complete(&devrec->tx_complete);
+
+	/* Check for Rx */
+	if (intstat & 0x8)
+		mrf24j40_handle_rx(devrec);
+
+out:
+	enable_irq(devrec->spi->irq);
+}
+
+static int __devinit mrf24j40_probe(struct spi_device *spi)
+{
+	int ret = -ENOMEM;
+	u8 val;
+	struct mrf24j40 *devrec;
+
+	printk(KERN_INFO "mrf24j40: probe(). IRQ: %d\n", spi->irq);
+
+	devrec = kzalloc(sizeof(struct mrf24j40), GFP_KERNEL);
+	if (!devrec)
+		goto err_devrec;
+	devrec->buf = kzalloc(3, GFP_KERNEL);
+	if (!devrec->buf)
+		goto err_buf;
+
+	spi->mode = SPI_MODE_0; /* TODO: Is this appropriate for right here? */
+	if (spi->max_speed_hz > MAX_SPI_SPEED_HZ)
+		spi->max_speed_hz = MAX_SPI_SPEED_HZ;
+
+	mutex_init(&devrec->buffer_mutex);
+	init_completion(&devrec->tx_complete);
+	INIT_WORK(&devrec->irqwork, mrf24j40_isrwork);
+	devrec->spi = spi;
+	dev_set_drvdata(&spi->dev, devrec);
+
+	/* Register with the 802154 subsystem */
+
+	devrec->dev = ieee802154_alloc_device(0, &mrf24j40_ops);
+	if (!devrec->dev)
+		goto err_alloc_dev;
+
+	devrec->dev->priv = devrec;
+	devrec->dev->parent = &devrec->spi->dev;
+	devrec->dev->phy->channels_supported[0] = CHANNEL_MASK;
+	devrec->dev->flags = IEEE802154_HW_OMIT_CKSUM|IEEE802154_HW_AACK;
+
+	dev_dbg(printdev(devrec), "registered mrf24j40\n");
+	ret = ieee802154_register_device(devrec->dev);
+	if (ret)
+		goto err_register_device;
+
+	/* Initialize the device.
+		From datasheet section 3.2: Initialization. */
+	write_short_reg(devrec, REG_SOFTRST, 0x07);
+	write_short_reg(devrec, REG_PACON2, 0x98);
+	write_short_reg(devrec, REG_TXSTBL, 0x95);
+	write_long_reg(devrec, REG_RFCON0, 0x03);
+	write_long_reg(devrec, REG_RFCON1, 0x01);
+	write_long_reg(devrec, REG_RFCON2, 0x80);
+	write_long_reg(devrec, REG_RFCON6, 0x90);
+	write_long_reg(devrec, REG_RFCON7, 0x80);
+	write_long_reg(devrec, REG_RFCON8, 0x10);
+	write_long_reg(devrec, REG_SLPCON1, 0x21);
+	write_short_reg(devrec, REG_BBREG2, 0x80);
+	write_short_reg(devrec, REG_CCAEDTH, 0x60);
+	write_short_reg(devrec, REG_BBREG6, 0x40);
+	write_short_reg(devrec, REG_RFCTL, 0x04);
+	write_short_reg(devrec, REG_RFCTL, 0x0);
+	udelay(192);
+
+	/* Set RX Mode. RXMCR<1:0>: 0x0 normal, 0x1 promisc, 0x2 error */
+	ret = read_short_reg(devrec, REG_RXMCR, &val);
+	if (ret)
+		goto err_read_reg;
+	val &= ~0x3; /* Clear RX mode (normal) */
+	write_short_reg(devrec, REG_RXMCR, val);
+
+	ret = request_irq(spi->irq,
+			  mrf24j40_isr,
+			  IRQF_TRIGGER_FALLING,
+			  dev_name(&spi->dev),
+			  devrec);
+
+	if (ret) {
+		dev_err(printdev(devrec), "Unable to get IRQ");
+		goto err_irq;
+	}
+
+	return 0;
+
+err_irq:
+err_read_reg:
+	ieee802154_unregister_device(devrec->dev);
+err_register_device:
+	ieee802154_free_device(devrec->dev);
+err_alloc_dev:
+	kfree(devrec->buf);
+err_buf:
+	kfree(devrec);
+err_devrec:
+	return ret;
+}
+
+static int __devexit mrf24j40_remove(struct spi_device *spi)
+{
+	struct mrf24j40 *devrec = dev_get_drvdata(&spi->dev);
+
+	dev_dbg(printdev(devrec), "remove\n");
+
+	free_irq(spi->irq, devrec);
+	flush_work(&devrec->irqwork); /* TODO: Is this the right call? */
+	ieee802154_unregister_device(devrec->dev);
+	ieee802154_free_device(devrec->dev);
+	/* TODO: Will ieee802154_free_device() wait until ->xmit() is
+	 * complete? */
+
+	/* Clean up the SPI stuff. */
+	dev_set_drvdata(&spi->dev, NULL);
+	kfree(devrec->buf);
+	kfree(devrec);
+	return 0;
+}
+
+static const struct spi_device_id mrf24j40_ids[] = {
+	{ "mrf24j40", 0 },
+	{ "mrf24j40ma", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(spi, mrf24j40_ids);
+
+static struct spi_driver mrf24j40_driver = {
+	.driver = {
+		.name = "mrf24j40",
+		.bus = &spi_bus_type,
+		.owner = THIS_MODULE,
+	},
+	.id_table = mrf24j40_ids,
+	.probe = mrf24j40_probe,
+	.remove = __devexit_p(mrf24j40_remove),
+};
+
+static int __init mrf24j40_init(void)
+{
+	return spi_register_driver(&mrf24j40_driver);
+}
+
+static void __exit mrf24j40_exit(void)
+{
+	spi_unregister_driver(&mrf24j40_driver);
+}
+
+module_init(mrf24j40_init);
+module_exit(mrf24j40_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alan Ott");
+MODULE_DESCRIPTION("MRF24J40 SPI 802.15.4 Controller Driver");
diff --git a/drivers/net/irda/bfin_sir.c b/drivers/net/irda/bfin_sir.c
index a561ae44a9a..c6a0299aa9f 100644
--- a/drivers/net/irda/bfin_sir.c
+++ b/drivers/net/irda/bfin_sir.c
@@ -158,7 +158,7 @@ static int bfin_sir_set_speed(struct bfin_sir_port *port, int speed)
 	/* If not add the 'RPOLC', we can't catch the receive interrupt.
 	 * It's related with the HW layout and the IR transiver.
 	 */
-	val |= IREN | RPOLC;
+	val |= UMOD_IRDA | RPOLC;
 	UART_PUT_GCTL(port, val);
 	return ret;
 }
@@ -432,7 +432,7 @@ static void bfin_sir_shutdown(struct bfin_sir_port *port, struct net_device *dev
 	bfin_sir_stop_rx(port);
 
 	val = UART_GET_GCTL(port);
-	val &= ~(UCEN | IREN | RPOLC);
+	val &= ~(UCEN | UMOD_MASK | RPOLC);
 	UART_PUT_GCTL(port, val);
 
 #ifdef CONFIG_SIR_BFIN_DMA
@@ -518,10 +518,10 @@ static void bfin_sir_send_work(struct work_struct *work)
 	 * reset all the UART.
 	 */
 	val = UART_GET_GCTL(port);
-	val &= ~(IREN | RPOLC);
+	val &= ~(UMOD_MASK | RPOLC);
 	UART_PUT_GCTL(port, val);
 	SSYNC();
-	val |= IREN | RPOLC;
+	val |= UMOD_IRDA | RPOLC;
 	UART_PUT_GCTL(port, val);
 	SSYNC();
 	/* bfin_sir_set_speed(port, self->speed); */
diff --git a/drivers/net/irda/irtty-sir.c b/drivers/net/irda/irtty-sir.c
index 3352b2443e5..30087ca23a0 100644
--- a/drivers/net/irda/irtty-sir.c
+++ b/drivers/net/irda/irtty-sir.c
@@ -124,8 +124,8 @@ static int irtty_change_speed(struct sir_dev *dev, unsigned speed)
 	tty = priv->tty;
 
 	mutex_lock(&tty->termios_mutex);
-	old_termios = *(tty->termios);
-	cflag = tty->termios->c_cflag;
+	old_termios = tty->termios;
+	cflag = tty->termios.c_cflag;
 	tty_encode_baud_rate(tty, speed, speed);
 	if (tty->ops->set_termios)
 		tty->ops->set_termios(tty, &old_termios);
@@ -281,15 +281,15 @@ static inline void irtty_stop_receiver(struct tty_struct *tty, int stop)
 	int cflag;
 
 	mutex_lock(&tty->termios_mutex);
-	old_termios = *(tty->termios);
-	cflag = tty->termios->c_cflag;
+	old_termios = tty->termios;
+	cflag = tty->termios.c_cflag;
 	
 	if (stop)
 		cflag &= ~CREAD;
 	else
 		cflag |= CREAD;
 
-	tty->termios->c_cflag = cflag;
+	tty->termios.c_cflag = cflag;
 	if (tty->ops->set_termios)
 		tty->ops->set_termios(tty, &old_termios);
 	mutex_unlock(&tty->termios_mutex);
diff --git a/drivers/net/irda/ks959-sir.c b/drivers/net/irda/ks959-sir.c
index 824e2a93fe8..5f3aeac3f86 100644
--- a/drivers/net/irda/ks959-sir.c
+++ b/drivers/net/irda/ks959-sir.c
@@ -542,6 +542,7 @@ static int ks959_net_open(struct net_device *netdev)
 	sprintf(hwname, "usb#%d", kingsun->usbdev->devnum);
 	kingsun->irlap = irlap_open(netdev, &kingsun->qos, hwname);
 	if (!kingsun->irlap) {
+		err = -ENOMEM;
 		dev_err(&kingsun->usbdev->dev, "irlap_open failed\n");
 		goto free_mem;
 	}
diff --git a/drivers/net/irda/ksdazzle-sir.c b/drivers/net/irda/ksdazzle-sir.c
index 5a278ab83c2..2d4b6a1ab20 100644
--- a/drivers/net/irda/ksdazzle-sir.c
+++ b/drivers/net/irda/ksdazzle-sir.c
@@ -436,6 +436,7 @@ static int ksdazzle_net_open(struct net_device *netdev)
 	sprintf(hwname, "usb#%d", kingsun->usbdev->devnum);
 	kingsun->irlap = irlap_open(netdev, &kingsun->qos, hwname);
 	if (!kingsun->irlap) {
+		err = -ENOMEM;
 		dev_err(&kingsun->usbdev->dev, "irlap_open failed\n");
 		goto free_mem;
 	}
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index 8d547670791..002a442bf73 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -28,9 +28,9 @@
 #include <net/irda/irda_device.h>
 
 #include <mach/dma.h>
-#include <mach/irda.h>
-#include <mach/regs-uart.h>
+#include <linux/platform_data/irda-pxaficp.h>
 #include <mach/regs-ost.h>
+#include <mach/regs-uart.h>
 
 #define FICP		__REG(0x40800000)  /* Start of FICP area */
 #define ICCR0		__REG(0x40800000)  /* ICP Control Register 0 */
@@ -112,6 +112,9 @@ struct pxa_irda {
 	int			txdma;
 	int			rxdma;
 
+	int			uart_irq;
+	int			icp_irq;
+
 	struct irlap_cb		*irlap;
 	struct qos_info		qos;
 
@@ -672,19 +675,19 @@ static int pxa_irda_start(struct net_device *dev)
 
 	si->speed = 9600;
 
-	err = request_irq(IRQ_STUART, pxa_irda_sir_irq, 0, dev->name, dev);
+	err = request_irq(si->uart_irq, pxa_irda_sir_irq, 0, dev->name, dev);
 	if (err)
 		goto err_irq1;
 
-	err = request_irq(IRQ_ICP, pxa_irda_fir_irq, 0, dev->name, dev);
+	err = request_irq(si->icp_irq, pxa_irda_fir_irq, 0, dev->name, dev);
 	if (err)
 		goto err_irq2;
 
 	/*
 	 * The interrupt must remain disabled for now.
 	 */
-	disable_irq(IRQ_STUART);
-	disable_irq(IRQ_ICP);
+	disable_irq(si->uart_irq);
+	disable_irq(si->icp_irq);
 
 	err = -EBUSY;
 	si->rxdma = pxa_request_dma("FICP_RX",DMA_PRIO_LOW, pxa_irda_fir_dma_rx_irq, dev);
@@ -720,8 +723,8 @@ static int pxa_irda_start(struct net_device *dev)
 	/*
 	 * Now enable the interrupt and start the queue
 	 */
-	enable_irq(IRQ_STUART);
-	enable_irq(IRQ_ICP);
+	enable_irq(si->uart_irq);
+	enable_irq(si->icp_irq);
 	netif_start_queue(dev);
 
 	printk(KERN_DEBUG "pxa_ir: irda driver opened\n");
@@ -738,9 +741,9 @@ err_dma_rx_buff:
 err_tx_dma:
 	pxa_free_dma(si->rxdma);
 err_rx_dma:
-	free_irq(IRQ_ICP, dev);
+	free_irq(si->icp_irq, dev);
 err_irq2:
-	free_irq(IRQ_STUART, dev);
+	free_irq(si->uart_irq, dev);
 err_irq1:
 
 	return err;
@@ -760,8 +763,8 @@ static int pxa_irda_stop(struct net_device *dev)
 		si->irlap = NULL;
 	}
 
-	free_irq(IRQ_STUART, dev);
-	free_irq(IRQ_ICP, dev);
+	free_irq(si->uart_irq, dev);
+	free_irq(si->icp_irq, dev);
 
 	pxa_free_dma(si->rxdma);
 	pxa_free_dma(si->txdma);
@@ -851,6 +854,9 @@ static int pxa_irda_probe(struct platform_device *pdev)
 	si->dev = &pdev->dev;
 	si->pdata = pdev->dev.platform_data;
 
+	si->uart_irq = platform_get_irq(pdev, 0);
+	si->icp_irq = platform_get_irq(pdev, 1);
+
 	si->sir_clk = clk_get(&pdev->dev, "UARTCLK");
 	si->fir_clk = clk_get(&pdev->dev, "FICPCLK");
 	if (IS_ERR(si->sir_clk) || IS_ERR(si->fir_clk)) {
diff --git a/drivers/net/irda/sh_sir.c b/drivers/net/irda/sh_sir.c
index 256eddf1f75..79510942556 100644
--- a/drivers/net/irda/sh_sir.c
+++ b/drivers/net/irda/sh_sir.c
@@ -280,7 +280,7 @@ static int sh_sir_set_baudrate(struct sh_sir_self *self, u32 baudrate)
 	}
 
 	clk = clk_get(NULL, "irda_clk");
-	if (!clk) {
+	if (IS_ERR(clk)) {
 		dev_err(dev, "can not get irda_clk\n");
 		return -EIO;
 	}
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index e2a06fd996d..81f8f9e31db 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -157,7 +157,7 @@ static const struct net_device_ops loopback_ops = {
  */
 static void loopback_setup(struct net_device *dev)
 {
-	dev->mtu		= (16 * 1024) + 20 + 20 + 12;
+	dev->mtu		= 64 * 1024;
 	dev->hard_header_len	= ETH_HLEN;	/* 14	*/
 	dev->addr_len		= ETH_ALEN;	/* 6	*/
 	dev->tx_queue_len	= 0;
@@ -197,6 +197,7 @@ static __net_init int loopback_net_init(struct net *net)
 	if (err)
 		goto out_free_netdev;
 
+	BUG_ON(dev->ifindex != LOOPBACK_IFINDEX);
 	net->loopback_dev = dev;
 	return 0;
 
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 66a9bfe7b1c..68a43fe602e 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -546,9 +546,9 @@ static int macvlan_vlan_rx_kill_vid(struct net_device *dev,
 	return 0;
 }
 
-static int macvlan_fdb_add(struct ndmsg *ndm,
+static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 			   struct net_device *dev,
-			   unsigned char *addr,
+			   const unsigned char *addr,
 			   u16 flags)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
@@ -567,7 +567,7 @@ static int macvlan_fdb_add(struct ndmsg *ndm,
 
 static int macvlan_fdb_del(struct ndmsg *ndm,
 			   struct net_device *dev,
-			   unsigned char *addr)
+			   const unsigned char *addr)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	int err = -EINVAL;
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 0737bd4d166..0f0f9ce3a77 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -94,7 +94,8 @@ static int get_slot(struct macvlan_dev *vlan, struct macvtap_queue *q)
 	int i;
 
 	for (i = 0; i < MAX_MACVTAP_QUEUES; i++) {
-		if (rcu_dereference(vlan->taps[i]) == q)
+		if (rcu_dereference_protected(vlan->taps[i],
+					      lockdep_is_held(&macvtap_lock)) == q)
 			return i;
 	}
 
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index f9347ea3d38..b3321129a83 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -640,15 +640,9 @@ static int netconsole_netdev_event(struct notifier_block *this,
 				 * rtnl_lock already held
 				 */
 				if (nt->np.dev) {
-					spin_unlock_irqrestore(
-							      &target_list_lock,
-							      flags);
 					__netpoll_cleanup(&nt->np);
-					spin_lock_irqsave(&target_list_lock,
-							  flags);
 					dev_put(nt->np.dev);
 					nt->np.dev = NULL;
-					netconsole_target_put(nt);
 				}
 				nt->enabled = 0;
 				stopped = true;
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 3090dc65a6f..983bbf4d5ef 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -159,6 +159,19 @@ config MDIO_BUS_MUX_GPIO
 	  several child MDIO busses to a parent bus.  Child bus
 	  selection is under the control of GPIO lines.
 
+config MDIO_BUS_MUX_MMIOREG
+	tristate "Support for MMIO device-controlled MDIO bus multiplexers"
+	depends on OF_MDIO
+	select MDIO_BUS_MUX
+	help
+	  This module provides a driver for MDIO bus multiplexers that
+	  are controlled via a simple memory-mapped device, like an FPGA.
+	  The multiplexer connects one of several child MDIO busses to a
+	  parent bus.  Child bus selection is under the control of one of
+	  the FPGA's registers.
+
+	  Currently, only 8-bit registers are supported.
+
 endif # PHYLIB
 
 config MICREL_KS8995MA
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 6d2dc6c94f2..426674debae 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -28,3 +28,4 @@ obj-$(CONFIG_MICREL_KS8995MA)	+= spi_ks8995.o
 obj-$(CONFIG_AMD_PHY)		+= amd.o
 obj-$(CONFIG_MDIO_BUS_MUX)	+= mdio-mux.o
 obj-$(CONFIG_MDIO_BUS_MUX_GPIO)	+= mdio-mux-gpio.o
+obj-$(CONFIG_MDIO_BUS_MUX_MMIOREG) += mdio-mux-mmioreg.o
diff --git a/drivers/net/phy/bcm87xx.c b/drivers/net/phy/bcm87xx.c
index 2346b38b983..799789518e8 100644
--- a/drivers/net/phy/bcm87xx.c
+++ b/drivers/net/phy/bcm87xx.c
@@ -229,3 +229,5 @@ static void __exit bcm87xx_exit(void)
 		ARRAY_SIZE(bcm87xx_driver));
 }
 module_exit(bcm87xx_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index b0da0226661..24e05c43bff 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -980,7 +980,7 @@ static int dp83640_probe(struct phy_device *phydev)
 
 	if (choose_this_phy(clock, phydev)) {
 		clock->chosen = dp83640;
-		clock->ptp_clock = ptp_clock_register(&clock->caps);
+		clock->ptp_clock = ptp_clock_register(&clock->caps, &phydev->dev);
 		if (IS_ERR(clock->ptp_clock)) {
 			err = PTR_ERR(clock->ptp_clock);
 			goto no_register;
diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c
index 6d1e3fcc43e..ec40ba882f6 100644
--- a/drivers/net/phy/lxt.c
+++ b/drivers/net/phy/lxt.c
@@ -122,6 +122,123 @@ static int lxt971_config_intr(struct phy_device *phydev)
 	return err;
 }
 
+/*
+ * A2 version of LXT973 chip has an ERRATA: it randomly return the contents
+ * of the previous even register when you read a odd register regularly
+ */
+
+static int lxt973a2_update_link(struct phy_device *phydev)
+{
+	int status;
+	int control;
+	int retry = 8; /* we try 8 times */
+
+	/* Do a fake read */
+	status = phy_read(phydev, MII_BMSR);
+
+	if (status < 0)
+		return status;
+
+	control = phy_read(phydev, MII_BMCR);
+	if (control < 0)
+		return control;
+
+	do {
+		/* Read link and autonegotiation status */
+		status = phy_read(phydev, MII_BMSR);
+	} while (status >= 0 && retry-- && status == control);
+
+	if (status < 0)
+		return status;
+
+	if ((status & BMSR_LSTATUS) == 0)
+		phydev->link = 0;
+	else
+		phydev->link = 1;
+
+	return 0;
+}
+
+int lxt973a2_read_status(struct phy_device *phydev)
+{
+	int adv;
+	int err;
+	int lpa;
+	int lpagb = 0;
+
+	/* Update the link, but return if there was an error */
+	err = lxt973a2_update_link(phydev);
+	if (err)
+		return err;
+
+	if (AUTONEG_ENABLE == phydev->autoneg) {
+		int retry = 1;
+
+		adv = phy_read(phydev, MII_ADVERTISE);
+
+		if (adv < 0)
+			return adv;
+
+		do {
+			lpa = phy_read(phydev, MII_LPA);
+
+			if (lpa < 0)
+				return lpa;
+
+			/* If both registers are equal, it is suspect but not
+			* impossible, hence a new try
+			*/
+		} while (lpa == adv && retry--);
+
+		lpa &= adv;
+
+		phydev->speed = SPEED_10;
+		phydev->duplex = DUPLEX_HALF;
+		phydev->pause = phydev->asym_pause = 0;
+
+		if (lpagb & (LPA_1000FULL | LPA_1000HALF)) {
+			phydev->speed = SPEED_1000;
+
+			if (lpagb & LPA_1000FULL)
+				phydev->duplex = DUPLEX_FULL;
+		} else if (lpa & (LPA_100FULL | LPA_100HALF)) {
+			phydev->speed = SPEED_100;
+
+			if (lpa & LPA_100FULL)
+				phydev->duplex = DUPLEX_FULL;
+		} else {
+			if (lpa & LPA_10FULL)
+				phydev->duplex = DUPLEX_FULL;
+		}
+
+		if (phydev->duplex == DUPLEX_FULL) {
+			phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
+			phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
+		}
+	} else {
+		int bmcr = phy_read(phydev, MII_BMCR);
+
+		if (bmcr < 0)
+			return bmcr;
+
+		if (bmcr & BMCR_FULLDPLX)
+			phydev->duplex = DUPLEX_FULL;
+		else
+			phydev->duplex = DUPLEX_HALF;
+
+		if (bmcr & BMCR_SPEED1000)
+			phydev->speed = SPEED_1000;
+		else if (bmcr & BMCR_SPEED100)
+			phydev->speed = SPEED_100;
+		else
+			phydev->speed = SPEED_10;
+
+		phydev->pause = phydev->asym_pause = 0;
+	}
+
+	return 0;
+}
+
 static int lxt973_probe(struct phy_device *phydev)
 {
 	int val = phy_read(phydev, MII_LXT973_PCR);
@@ -175,6 +292,16 @@ static struct phy_driver lxt97x_driver[] = {
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= 0x00137a10,
+	.name		= "LXT973-A2",
+	.phy_id_mask	= 0xffffffff,
+	.features	= PHY_BASIC_FEATURES,
+	.flags		= 0,
+	.probe		= lxt973_probe,
+	.config_aneg	= lxt973_config_aneg,
+	.read_status	= lxt973a2_read_status,
+	.driver		= { .owner = THIS_MODULE,},
+}, {
+	.phy_id		= 0x00137a10,
 	.name		= "LXT973",
 	.phy_id_mask	= 0xfffffff0,
 	.features	= PHY_BASIC_FEATURES,
diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
index 7189adf54bd..899274f2f9b 100644
--- a/drivers/net/phy/mdio-gpio.c
+++ b/drivers/net/phy/mdio-gpio.c
@@ -28,17 +28,38 @@
 #include <linux/gpio.h>
 #include <linux/mdio-gpio.h>
 
-#ifdef CONFIG_OF_GPIO
 #include <linux/of_gpio.h>
 #include <linux/of_mdio.h>
-#include <linux/of_platform.h>
-#endif
 
 struct mdio_gpio_info {
 	struct mdiobb_ctrl ctrl;
 	int mdc, mdio;
 };
 
+static void *mdio_gpio_of_get_data(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct mdio_gpio_platform_data *pdata;
+	int ret;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
+
+	ret = of_get_gpio(np, 0);
+	if (ret < 0)
+		return NULL;
+
+	pdata->mdc = ret;
+
+	ret = of_get_gpio(np, 1);
+	if (ret < 0)
+		return NULL;
+	pdata->mdio = ret;
+
+	return pdata;
+}
+
 static void mdio_dir(struct mdiobb_ctrl *ctrl, int dir)
 {
 	struct mdio_gpio_info *bitbang =
@@ -162,10 +183,15 @@ static void __devexit mdio_gpio_bus_destroy(struct device *dev)
 
 static int __devinit mdio_gpio_probe(struct platform_device *pdev)
 {
-	struct mdio_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct mdio_gpio_platform_data *pdata;
 	struct mii_bus *new_bus;
 	int ret;
 
+	if (pdev->dev.of_node)
+		pdata = mdio_gpio_of_get_data(pdev);
+	else
+		pdata = pdev->dev.platform_data;
+
 	if (!pdata)
 		return -ENODEV;
 
@@ -173,7 +199,11 @@ static int __devinit mdio_gpio_probe(struct platform_device *pdev)
 	if (!new_bus)
 		return -ENODEV;
 
-	ret = mdiobus_register(new_bus);
+	if (pdev->dev.of_node)
+		ret = of_mdiobus_register(new_bus, pdev->dev.of_node);
+	else
+		ret = mdiobus_register(new_bus);
+
 	if (ret)
 		mdio_gpio_bus_deinit(&pdev->dev);
 
@@ -187,112 +217,30 @@ static int __devexit mdio_gpio_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_OF_GPIO
-
-static int __devinit mdio_ofgpio_probe(struct platform_device *ofdev)
-{
-	struct mdio_gpio_platform_data *pdata;
-	struct mii_bus *new_bus;
-	int ret;
-
-	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return -ENOMEM;
-
-	ret = of_get_gpio(ofdev->dev.of_node, 0);
-	if (ret < 0)
-		goto out_free;
-	pdata->mdc = ret;
-
-	ret = of_get_gpio(ofdev->dev.of_node, 1);
-	if (ret < 0)
-		goto out_free;
-	pdata->mdio = ret;
-
-	new_bus = mdio_gpio_bus_init(&ofdev->dev, pdata, pdata->mdc);
-	if (!new_bus)
-		goto out_free;
-
-	ret = of_mdiobus_register(new_bus, ofdev->dev.of_node);
-	if (ret)
-		mdio_gpio_bus_deinit(&ofdev->dev);
-
-	return ret;
-
-out_free:
-	kfree(pdata);
-	return -ENODEV;
-}
-
-static int __devexit mdio_ofgpio_remove(struct platform_device *ofdev)
-{
-	mdio_gpio_bus_destroy(&ofdev->dev);
-	kfree(ofdev->dev.platform_data);
-
-	return 0;
-}
-
-static struct of_device_id mdio_ofgpio_match[] = {
-	{
-		.compatible = "virtual,mdio-gpio",
-	},
-	{},
-};
-MODULE_DEVICE_TABLE(of, mdio_ofgpio_match);
-
-static struct platform_driver mdio_ofgpio_driver = {
-	.driver = {
-		.name = "mdio-ofgpio",
-		.owner = THIS_MODULE,
-		.of_match_table = mdio_ofgpio_match,
-	},
-	.probe = mdio_ofgpio_probe,
-	.remove = __devexit_p(mdio_ofgpio_remove),
+static struct of_device_id mdio_gpio_of_match[] = {
+	{ .compatible = "virtual,mdio-gpio", },
+	{ /* sentinel */ }
 };
 
-static inline int __init mdio_ofgpio_init(void)
-{
-	return platform_driver_register(&mdio_ofgpio_driver);
-}
-
-static inline void mdio_ofgpio_exit(void)
-{
-	platform_driver_unregister(&mdio_ofgpio_driver);
-}
-#else
-static inline int __init mdio_ofgpio_init(void) { return 0; }
-static inline void mdio_ofgpio_exit(void) { }
-#endif /* CONFIG_OF_GPIO */
-
 static struct platform_driver mdio_gpio_driver = {
 	.probe = mdio_gpio_probe,
 	.remove = __devexit_p(mdio_gpio_remove),
 	.driver		= {
 		.name	= "mdio-gpio",
 		.owner	= THIS_MODULE,
+		.of_match_table = mdio_gpio_of_match,
 	},
 };
 
 static int __init mdio_gpio_init(void)
 {
-	int ret;
-
-	ret = mdio_ofgpio_init();
-	if (ret)
-		return ret;
-
-	ret = platform_driver_register(&mdio_gpio_driver);
-	if (ret)
-		mdio_ofgpio_exit();
-
-	return ret;
+	return platform_driver_register(&mdio_gpio_driver);
 }
 module_init(mdio_gpio_init);
 
 static void __exit mdio_gpio_exit(void)
 {
 	platform_driver_unregister(&mdio_gpio_driver);
-	mdio_ofgpio_exit();
 }
 module_exit(mdio_gpio_exit);
 
diff --git a/drivers/net/phy/mdio-mux-gpio.c b/drivers/net/phy/mdio-mux-gpio.c
index e0cc4ef33de..eefe49e8713 100644
--- a/drivers/net/phy/mdio-mux-gpio.c
+++ b/drivers/net/phy/mdio-mux-gpio.c
@@ -101,7 +101,6 @@ err:
 		n--;
 		gpio_free(s->gpio[n]);
 	}
-	devm_kfree(&pdev->dev, s);
 	return r;
 }
 
diff --git a/drivers/net/phy/mdio-mux-mmioreg.c b/drivers/net/phy/mdio-mux-mmioreg.c
new file mode 100644
index 00000000000..9061ba622ac
--- /dev/null
+++ b/drivers/net/phy/mdio-mux-mmioreg.c
@@ -0,0 +1,171 @@
+/*
+ * Simple memory-mapped device MDIO MUX driver
+ *
+ * Author: Timur Tabi <timur@freescale.com>
+ *
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/of_address.h>
+#include <linux/of_mdio.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/phy.h>
+#include <linux/mdio-mux.h>
+
+struct mdio_mux_mmioreg_state {
+	void *mux_handle;
+	phys_addr_t phys;
+	uint8_t mask;
+};
+
+/*
+ * MDIO multiplexing switch function
+ *
+ * This function is called by the mdio-mux layer when it thinks the mdio bus
+ * multiplexer needs to switch.
+ *
+ * 'current_child' is the current value of the mux register (masked via
+ * s->mask).
+ *
+ * 'desired_child' is the value of the 'reg' property of the target child MDIO
+ * node.
+ *
+ * The first time this function is called, current_child == -1.
+ *
+ * If current_child == desired_child, then the mux is already set to the
+ * correct bus.
+ */
+static int mdio_mux_mmioreg_switch_fn(int current_child, int desired_child,
+				      void *data)
+{
+	struct mdio_mux_mmioreg_state *s = data;
+
+	if (current_child ^ desired_child) {
+		void *p = ioremap(s->phys, 1);
+		uint8_t x, y;
+
+		if (!p)
+			return -ENOMEM;
+
+		x = ioread8(p);
+		y = (x & ~s->mask) | desired_child;
+		if (x != y) {
+			iowrite8((x & ~s->mask) | desired_child, p);
+			pr_debug("%s: %02x -> %02x\n", __func__, x, y);
+		}
+
+		iounmap(p);
+	}
+
+	return 0;
+}
+
+static int __devinit mdio_mux_mmioreg_probe(struct platform_device *pdev)
+{
+	struct device_node *np2, *np = pdev->dev.of_node;
+	struct mdio_mux_mmioreg_state *s;
+	struct resource res;
+	const __be32 *iprop;
+	int len, ret;
+
+	dev_dbg(&pdev->dev, "probing node %s\n", np->full_name);
+
+	s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL);
+	if (!s)
+		return -ENOMEM;
+
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret) {
+		dev_err(&pdev->dev, "could not obtain memory map for node %s\n",
+			np->full_name);
+		return ret;
+	}
+	s->phys = res.start;
+
+	if (resource_size(&res) != sizeof(uint8_t)) {
+		dev_err(&pdev->dev, "only 8-bit registers are supported\n");
+		return -EINVAL;
+	}
+
+	iprop = of_get_property(np, "mux-mask", &len);
+	if (!iprop || len != sizeof(uint32_t)) {
+		dev_err(&pdev->dev, "missing or invalid mux-mask property\n");
+		return -ENODEV;
+	}
+	if (be32_to_cpup(iprop) > 255) {
+		dev_err(&pdev->dev, "only 8-bit registers are supported\n");
+		return -EINVAL;
+	}
+	s->mask = be32_to_cpup(iprop);
+
+	/*
+	 * Verify that the 'reg' property of each child MDIO bus does not
+	 * set any bits outside of the 'mask'.
+	 */
+	for_each_available_child_of_node(np, np2) {
+		iprop = of_get_property(np2, "reg", &len);
+		if (!iprop || len != sizeof(uint32_t)) {
+			dev_err(&pdev->dev, "mdio-mux child node %s is "
+				"missing a 'reg' property\n", np2->full_name);
+			return -ENODEV;
+		}
+		if (be32_to_cpup(iprop) & ~s->mask) {
+			dev_err(&pdev->dev, "mdio-mux child node %s has "
+				"a 'reg' value with unmasked bits\n",
+				np2->full_name);
+			return -ENODEV;
+		}
+	}
+
+	ret = mdio_mux_init(&pdev->dev, mdio_mux_mmioreg_switch_fn,
+			    &s->mux_handle, s);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register mdio-mux bus %s\n",
+			np->full_name);
+		return ret;
+	}
+
+	pdev->dev.platform_data = s;
+
+	return 0;
+}
+
+static int __devexit mdio_mux_mmioreg_remove(struct platform_device *pdev)
+{
+	struct mdio_mux_mmioreg_state *s = dev_get_platdata(&pdev->dev);
+
+	mdio_mux_uninit(s->mux_handle);
+
+	return 0;
+}
+
+static struct of_device_id mdio_mux_mmioreg_match[] = {
+	{
+		.compatible = "mdio-mux-mmioreg",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mdio_mux_mmioreg_match);
+
+static struct platform_driver mdio_mux_mmioreg_driver = {
+	.driver = {
+		.name		= "mdio-mux-mmioreg",
+		.owner		= THIS_MODULE,
+		.of_match_table = mdio_mux_mmioreg_match,
+	},
+	.probe		= mdio_mux_mmioreg_probe,
+	.remove		= __devexit_p(mdio_mux_mmioreg_remove),
+};
+
+module_platform_driver(mdio_mux_mmioreg_driver);
+
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Memory-mapped device MDIO MUX driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/phy/mdio-mux.c b/drivers/net/phy/mdio-mux.c
index 5c120189ec8..4d4d25efc1e 100644
--- a/drivers/net/phy/mdio-mux.c
+++ b/drivers/net/phy/mdio-mux.c
@@ -132,7 +132,7 @@ int mdio_mux_init(struct device *dev,
 	pb->mii_bus = parent_bus;
 
 	ret_val = -ENODEV;
-	for_each_child_of_node(dev->of_node, child_bus_node) {
+	for_each_available_child_of_node(dev->of_node, child_bus_node) {
 		u32 v;
 
 		r = of_property_read_u32(child_bus_node, "reg", &v);
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index cf287e0eb40..2165d5fdb8c 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -21,6 +21,12 @@
 #include <linux/phy.h>
 #include <linux/micrel_phy.h>
 
+/* Operation Mode Strap Override */
+#define MII_KSZPHY_OMSO				0x16
+#define KSZPHY_OMSO_B_CAST_OFF			(1 << 9)
+#define KSZPHY_OMSO_RMII_OVERRIDE		(1 << 1)
+#define KSZPHY_OMSO_MII_OVERRIDE		(1 << 0)
+
 /* general Interrupt control/status reg in vendor specific block. */
 #define MII_KSZPHY_INTCS			0x1B
 #define	KSZPHY_INTCS_JABBER			(1 << 15)
@@ -101,6 +107,13 @@ static int kszphy_config_init(struct phy_device *phydev)
 	return 0;
 }
 
+static int ksz8021_config_init(struct phy_device *phydev)
+{
+	const u16 val = KSZPHY_OMSO_B_CAST_OFF | KSZPHY_OMSO_RMII_OVERRIDE;
+	phy_write(phydev, MII_KSZPHY_OMSO, val);
+	return 0;
+}
+
 static int ks8051_config_init(struct phy_device *phydev)
 {
 	int regval;
@@ -128,9 +141,22 @@ static struct phy_driver ksphy_driver[] = {
 	.config_intr	= ks8737_config_intr,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
-	.phy_id		= PHY_ID_KS8041,
+	.phy_id		= PHY_ID_KSZ8021,
+	.phy_id_mask	= 0x00ffffff,
+	.name		= "Micrel KSZ8021",
+	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
+			   SUPPORTED_Asym_Pause),
+	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+	.config_init	= ksz8021_config_init,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
+	.ack_interrupt	= kszphy_ack_interrupt,
+	.config_intr	= kszphy_config_intr,
+	.driver		= { .owner = THIS_MODULE,},
+}, {
+	.phy_id		= PHY_ID_KSZ8041,
 	.phy_id_mask	= 0x00fffff0,
-	.name		= "Micrel KS8041",
+	.name		= "Micrel KSZ8041",
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause
 				| SUPPORTED_Asym_Pause),
 	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
@@ -141,9 +167,9 @@ static struct phy_driver ksphy_driver[] = {
 	.config_intr	= kszphy_config_intr,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
-	.phy_id		= PHY_ID_KS8051,
+	.phy_id		= PHY_ID_KSZ8051,
 	.phy_id_mask	= 0x00fffff0,
-	.name		= "Micrel KS8051",
+	.name		= "Micrel KSZ8051",
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause
 				| SUPPORTED_Asym_Pause),
 	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
@@ -154,8 +180,8 @@ static struct phy_driver ksphy_driver[] = {
 	.config_intr	= kszphy_config_intr,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
-	.phy_id		= PHY_ID_KS8001,
-	.name		= "Micrel KS8001 or KS8721",
+	.phy_id		= PHY_ID_KSZ8001,
+	.name		= "Micrel KSZ8001 or KS8721",
 	.phy_id_mask	= 0x00ffffff,
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
 	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
@@ -201,10 +227,11 @@ MODULE_LICENSE("GPL");
 
 static struct mdio_device_id __maybe_unused micrel_tbl[] = {
 	{ PHY_ID_KSZ9021, 0x000ffffe },
-	{ PHY_ID_KS8001, 0x00ffffff },
+	{ PHY_ID_KSZ8001, 0x00ffffff },
 	{ PHY_ID_KS8737, 0x00fffff0 },
-	{ PHY_ID_KS8041, 0x00fffff0 },
-	{ PHY_ID_KS8051, 0x00fffff0 },
+	{ PHY_ID_KSZ8021, 0x00ffffff },
+	{ PHY_ID_KSZ8041, 0x00fffff0 },
+	{ PHY_ID_KSZ8051, 0x00fffff0 },
 	{ }
 };
 
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 7ca2ff97c36..ef9ea924822 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1035,66 +1035,6 @@ static void phy_write_mmd_indirect(struct mii_bus *bus, int prtad, int devad,
 	bus->write(bus, addr, MII_MMD_DATA, data);
 }
 
-static u32 phy_eee_to_adv(u16 eee_adv)
-{
-	u32 adv = 0;
-
-	if (eee_adv & MDIO_EEE_100TX)
-		adv |= ADVERTISED_100baseT_Full;
-	if (eee_adv & MDIO_EEE_1000T)
-		adv |= ADVERTISED_1000baseT_Full;
-	if (eee_adv & MDIO_EEE_10GT)
-		adv |= ADVERTISED_10000baseT_Full;
-	if (eee_adv & MDIO_EEE_1000KX)
-		adv |= ADVERTISED_1000baseKX_Full;
-	if (eee_adv & MDIO_EEE_10GKX4)
-		adv |= ADVERTISED_10000baseKX4_Full;
-	if (eee_adv & MDIO_EEE_10GKR)
-		adv |= ADVERTISED_10000baseKR_Full;
-
-	return adv;
-}
-
-static u32 phy_eee_to_supported(u16 eee_caported)
-{
-	u32 supported = 0;
-
-	if (eee_caported & MDIO_EEE_100TX)
-		supported |= SUPPORTED_100baseT_Full;
-	if (eee_caported & MDIO_EEE_1000T)
-		supported |= SUPPORTED_1000baseT_Full;
-	if (eee_caported & MDIO_EEE_10GT)
-		supported |= SUPPORTED_10000baseT_Full;
-	if (eee_caported & MDIO_EEE_1000KX)
-		supported |= SUPPORTED_1000baseKX_Full;
-	if (eee_caported & MDIO_EEE_10GKX4)
-		supported |= SUPPORTED_10000baseKX4_Full;
-	if (eee_caported & MDIO_EEE_10GKR)
-		supported |= SUPPORTED_10000baseKR_Full;
-
-	return supported;
-}
-
-static u16 phy_adv_to_eee(u32 adv)
-{
-	u16 reg = 0;
-
-	if (adv & ADVERTISED_100baseT_Full)
-		reg |= MDIO_EEE_100TX;
-	if (adv & ADVERTISED_1000baseT_Full)
-		reg |= MDIO_EEE_1000T;
-	if (adv & ADVERTISED_10000baseT_Full)
-		reg |= MDIO_EEE_10GT;
-	if (adv & ADVERTISED_1000baseKX_Full)
-		reg |= MDIO_EEE_1000KX;
-	if (adv & ADVERTISED_10000baseKX4_Full)
-		reg |= MDIO_EEE_10GKX4;
-	if (adv & ADVERTISED_10000baseKR_Full)
-		reg |= MDIO_EEE_10GKR;
-
-	return reg;
-}
-
 /**
  * phy_init_eee - init and check the EEE feature
  * @phydev: target phy_device struct
@@ -1132,7 +1072,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
 		if (eee_cap < 0)
 			return eee_cap;
 
-		cap = phy_eee_to_supported(eee_cap);
+		cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
 		if (!cap)
 			goto eee_exit;
 
@@ -1149,8 +1089,8 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
 		if (eee_adv < 0)
 			return eee_adv;
 
-		adv = phy_eee_to_adv(eee_adv);
-		lp = phy_eee_to_adv(eee_lp);
+		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
+		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
 		idx = phy_find_setting(phydev->speed, phydev->duplex);
 		if ((lp & adv & settings[idx].setting))
 			goto eee_exit;
@@ -1210,21 +1150,21 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data)
 				    MDIO_MMD_PCS, phydev->addr);
 	if (val < 0)
 		return val;
-	data->supported = phy_eee_to_supported(val);
+	data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
 
 	/* Get advertisement EEE */
 	val = phy_read_mmd_indirect(phydev->bus, MDIO_AN_EEE_ADV,
 				    MDIO_MMD_AN, phydev->addr);
 	if (val < 0)
 		return val;
-	data->advertised = phy_eee_to_adv(val);
+	data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
 
 	/* Get LP advertisement EEE */
 	val = phy_read_mmd_indirect(phydev->bus, MDIO_AN_EEE_LPABLE,
 				    MDIO_MMD_AN, phydev->addr);
 	if (val < 0)
 		return val;
-	data->lp_advertised = phy_eee_to_adv(val);
+	data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
 
 	return 0;
 }
@@ -1241,7 +1181,7 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
 {
 	int val;
 
-	val = phy_adv_to_eee(data->advertised);
+	val = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
 	phy_write_mmd_indirect(phydev->bus, MDIO_AN_EEE_ADV, MDIO_MMD_AN,
 			       phydev->addr, val);
 
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index 6d6192316b3..88e3991464e 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -56,6 +56,32 @@ static int smsc_phy_config_init(struct phy_device *phydev)
 	return smsc_phy_ack_interrupt (phydev);
 }
 
+static int lan87xx_config_init(struct phy_device *phydev)
+{
+	/*
+	 * Make sure the EDPWRDOWN bit is NOT set. Setting this bit on
+	 * LAN8710/LAN8720 PHY causes the PHY to misbehave, likely due
+	 * to a bug on the chip.
+	 *
+	 * When the system is powered on with the network cable being
+	 * disconnected all the way until after ifconfig ethX up is
+	 * issued for the LAN port with this PHY, connecting the cable
+	 * afterwards does not cause LINK change detection, while the
+	 * expected behavior is the Link UP being detected.
+	 */
+	int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
+	if (rc < 0)
+		return rc;
+
+	rc &= ~MII_LAN83C185_EDPWRDOWN;
+
+	rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS, rc);
+	if (rc < 0)
+		return rc;
+
+	return smsc_phy_ack_interrupt(phydev);
+}
+
 static int lan911x_config_init(struct phy_device *phydev)
 {
 	return smsc_phy_ack_interrupt(phydev);
@@ -162,7 +188,7 @@ static struct phy_driver smsc_phy_driver[] = {
 	/* basic functions */
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
-	.config_init	= smsc_phy_config_init,
+	.config_init	= lan87xx_config_init,
 
 	/* IRQ related */
 	.ack_interrupt	= smsc_phy_ack_interrupt,
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 5c0557222f2..eb3f5cefeba 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -94,6 +94,18 @@ struct ppp_file {
 #define PF_TO_CHANNEL(pf)	PF_TO_X(pf, struct channel)
 
 /*
+ * Data structure to hold primary network stats for which
+ * we want to use 64 bit storage.  Other network stats
+ * are stored in dev->stats of the ppp strucute.
+ */
+struct ppp_link_stats {
+	u64 rx_packets;
+	u64 tx_packets;
+	u64 rx_bytes;
+	u64 tx_bytes;
+};
+
+/*
  * Data structure describing one ppp unit.
  * A ppp unit corresponds to a ppp network interface device
  * and represents a multilink bundle.
@@ -136,6 +148,7 @@ struct ppp {
 	unsigned pass_len, active_len;
 #endif /* CONFIG_PPP_FILTER */
 	struct net	*ppp_net;	/* the net we belong to */
+	struct ppp_link_stats stats64;	/* 64 bit network stats */
 };
 
 /*
@@ -1021,9 +1034,34 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	return err;
 }
 
+struct rtnl_link_stats64*
+ppp_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats64)
+{
+	struct ppp *ppp = netdev_priv(dev);
+
+	ppp_recv_lock(ppp);
+	stats64->rx_packets = ppp->stats64.rx_packets;
+	stats64->rx_bytes   = ppp->stats64.rx_bytes;
+	ppp_recv_unlock(ppp);
+
+	ppp_xmit_lock(ppp);
+	stats64->tx_packets = ppp->stats64.tx_packets;
+	stats64->tx_bytes   = ppp->stats64.tx_bytes;
+	ppp_xmit_unlock(ppp);
+
+	stats64->rx_errors        = dev->stats.rx_errors;
+	stats64->tx_errors        = dev->stats.tx_errors;
+	stats64->rx_dropped       = dev->stats.rx_dropped;
+	stats64->tx_dropped       = dev->stats.tx_dropped;
+	stats64->rx_length_errors = dev->stats.rx_length_errors;
+
+	return stats64;
+}
+
 static const struct net_device_ops ppp_netdev_ops = {
-	.ndo_start_xmit = ppp_start_xmit,
-	.ndo_do_ioctl   = ppp_net_ioctl,
+	.ndo_start_xmit  = ppp_start_xmit,
+	.ndo_do_ioctl    = ppp_net_ioctl,
+	.ndo_get_stats64 = ppp_get_stats64,
 };
 
 static void ppp_setup(struct net_device *dev)
@@ -1157,8 +1195,8 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb)
 #endif /* CONFIG_PPP_FILTER */
 	}
 
-	++ppp->dev->stats.tx_packets;
-	ppp->dev->stats.tx_bytes += skb->len - 2;
+	++ppp->stats64.tx_packets;
+	ppp->stats64.tx_bytes += skb->len - 2;
 
 	switch (proto) {
 	case PPP_IP:
@@ -1745,8 +1783,8 @@ ppp_receive_nonmp_frame(struct ppp *ppp, struct sk_buff *skb)
 		break;
 	}
 
-	++ppp->dev->stats.rx_packets;
-	ppp->dev->stats.rx_bytes += skb->len - 2;
+	++ppp->stats64.rx_packets;
+	ppp->stats64.rx_bytes += skb->len - 2;
 
 	npi = proto_to_npindex(proto);
 	if (npi < 0) {
@@ -2570,12 +2608,12 @@ ppp_get_stats(struct ppp *ppp, struct ppp_stats *st)
 	struct slcompress *vj = ppp->vj;
 
 	memset(st, 0, sizeof(*st));
-	st->p.ppp_ipackets = ppp->dev->stats.rx_packets;
+	st->p.ppp_ipackets = ppp->stats64.rx_packets;
 	st->p.ppp_ierrors = ppp->dev->stats.rx_errors;
-	st->p.ppp_ibytes = ppp->dev->stats.rx_bytes;
-	st->p.ppp_opackets = ppp->dev->stats.tx_packets;
+	st->p.ppp_ibytes = ppp->stats64.rx_bytes;
+	st->p.ppp_opackets = ppp->stats64.tx_packets;
 	st->p.ppp_oerrors = ppp->dev->stats.tx_errors;
-	st->p.ppp_obytes = ppp->dev->stats.tx_bytes;
+	st->p.ppp_obytes = ppp->stats64.tx_bytes;
 	if (!vj)
 		return;
 	st->vj.vjs_packets = vj->sls_o_compressed + vj->sls_o_uncompressed;
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index cbf7047decc..20f31d0d153 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -570,7 +570,7 @@ static int pppoe_release(struct socket *sock)
 
 	po = pppox_sk(sk);
 
-	if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
+	if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
 		dev_put(po->pppoe_dev);
 		po->pppoe_dev = NULL;
 	}
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index 1c98321b56c..162464fe86b 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -189,7 +189,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb)
 	if (sk_pppox(po)->sk_state & PPPOX_DEAD)
 		goto tx_error;
 
-	rt = ip_route_output_ports(&init_net, &fl4, NULL,
+	rt = ip_route_output_ports(sock_net(sk), &fl4, NULL,
 				   opt->dst_addr.sin_addr.s_addr,
 				   opt->src_addr.sin_addr.s_addr,
 				   0, 0, IPPROTO_GRE,
@@ -468,7 +468,7 @@ static int pptp_connect(struct socket *sock, struct sockaddr *uservaddr,
 	po->chan.private = sk;
 	po->chan.ops = &pptp_chan_ops;
 
-	rt = ip_route_output_ports(&init_net, &fl4, sk,
+	rt = ip_route_output_ports(sock_net(sk), &fl4, sk,
 				   opt->dst_addr.sin_addr.s_addr,
 				   opt->src_addr.sin_addr.s_addr,
 				   0, 0,
diff --git a/drivers/net/team/Kconfig b/drivers/net/team/Kconfig
index 6a7260b03a1..6b08bd419fb 100644
--- a/drivers/net/team/Kconfig
+++ b/drivers/net/team/Kconfig
@@ -21,7 +21,7 @@ config NET_TEAM_MODE_BROADCAST
 	---help---
 	  Basic mode where packets are transmitted always by all suitable ports.
 
-	  All added ports are setup to have team's mac address.
+	  All added ports are setup to have team's device address.
 
 	  To compile this team mode as a module, choose M here: the module
 	  will be called team_mode_broadcast.
@@ -33,7 +33,7 @@ config NET_TEAM_MODE_ROUNDROBIN
 	  Basic mode where port used for transmitting packets is selected in
 	  round-robin fashion using packet counter.
 
-	  All added ports are setup to have team's mac address.
+	  All added ports are setup to have team's device address.
 
 	  To compile this team mode as a module, choose M here: the module
 	  will be called team_mode_roundrobin.
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 87707ab3943..5c7547c4f80 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -54,29 +54,29 @@ static struct team_port *team_port_get_rtnl(const struct net_device *dev)
 }
 
 /*
- * Since the ability to change mac address for open port device is tested in
+ * Since the ability to change device address for open port device is tested in
  * team_port_add, this function can be called without control of return value
  */
-static int __set_port_mac(struct net_device *port_dev,
-			  const unsigned char *dev_addr)
+static int __set_port_dev_addr(struct net_device *port_dev,
+			       const unsigned char *dev_addr)
 {
 	struct sockaddr addr;
 
-	memcpy(addr.sa_data, dev_addr, ETH_ALEN);
-	addr.sa_family = ARPHRD_ETHER;
+	memcpy(addr.sa_data, dev_addr, port_dev->addr_len);
+	addr.sa_family = port_dev->type;
 	return dev_set_mac_address(port_dev, &addr);
 }
 
-static int team_port_set_orig_mac(struct team_port *port)
+static int team_port_set_orig_dev_addr(struct team_port *port)
 {
-	return __set_port_mac(port->dev, port->orig.dev_addr);
+	return __set_port_dev_addr(port->dev, port->orig.dev_addr);
 }
 
-int team_port_set_team_mac(struct team_port *port)
+int team_port_set_team_dev_addr(struct team_port *port)
 {
-	return __set_port_mac(port->dev, port->team->dev->dev_addr);
+	return __set_port_dev_addr(port->dev, port->team->dev->dev_addr);
 }
-EXPORT_SYMBOL(team_port_set_team_mac);
+EXPORT_SYMBOL(team_port_set_team_dev_addr);
 
 static void team_refresh_port_linkup(struct team_port *port)
 {
@@ -658,6 +658,122 @@ static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
 }
 
 
+/*************************************
+ * Multiqueue Tx port select override
+ *************************************/
+
+static int team_queue_override_init(struct team *team)
+{
+	struct list_head *listarr;
+	unsigned int queue_cnt = team->dev->num_tx_queues - 1;
+	unsigned int i;
+
+	if (!queue_cnt)
+		return 0;
+	listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL);
+	if (!listarr)
+		return -ENOMEM;
+	team->qom_lists = listarr;
+	for (i = 0; i < queue_cnt; i++)
+		INIT_LIST_HEAD(listarr++);
+	return 0;
+}
+
+static void team_queue_override_fini(struct team *team)
+{
+	kfree(team->qom_lists);
+}
+
+static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
+{
+	return &team->qom_lists[queue_id - 1];
+}
+
+/*
+ * note: already called with rcu_read_lock
+ */
+static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
+{
+	struct list_head *qom_list;
+	struct team_port *port;
+
+	if (!team->queue_override_enabled || !skb->queue_mapping)
+		return false;
+	qom_list = __team_get_qom_list(team, skb->queue_mapping);
+	list_for_each_entry_rcu(port, qom_list, qom_list) {
+		if (!team_dev_queue_xmit(team, port, skb))
+			return true;
+	}
+	return false;
+}
+
+static void __team_queue_override_port_del(struct team *team,
+					   struct team_port *port)
+{
+	list_del_rcu(&port->qom_list);
+	synchronize_rcu();
+	INIT_LIST_HEAD(&port->qom_list);
+}
+
+static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
+						      struct team_port *cur)
+{
+	if (port->priority < cur->priority)
+		return true;
+	if (port->priority > cur->priority)
+		return false;
+	if (port->index < cur->index)
+		return true;
+	return false;
+}
+
+static void __team_queue_override_port_add(struct team *team,
+					   struct team_port *port)
+{
+	struct team_port *cur;
+	struct list_head *qom_list;
+	struct list_head *node;
+
+	if (!port->queue_id || !team_port_enabled(port))
+		return;
+
+	qom_list = __team_get_qom_list(team, port->queue_id);
+	node = qom_list;
+	list_for_each_entry(cur, qom_list, qom_list) {
+		if (team_queue_override_port_has_gt_prio_than(port, cur))
+			break;
+		node = &cur->qom_list;
+	}
+	list_add_tail_rcu(&port->qom_list, node);
+}
+
+static void __team_queue_override_enabled_check(struct team *team)
+{
+	struct team_port *port;
+	bool enabled = false;
+
+	list_for_each_entry(port, &team->port_list, list) {
+		if (!list_empty(&port->qom_list)) {
+			enabled = true;
+			break;
+		}
+	}
+	if (enabled == team->queue_override_enabled)
+		return;
+	netdev_dbg(team->dev, "%s queue override\n",
+		   enabled ? "Enabling" : "Disabling");
+	team->queue_override_enabled = enabled;
+}
+
+static void team_queue_override_port_refresh(struct team *team,
+					     struct team_port *port)
+{
+	__team_queue_override_port_del(team, port);
+	__team_queue_override_port_add(team, port);
+	__team_queue_override_enabled_check(team);
+}
+
+
 /****************
  * Port handling
  ****************/
@@ -688,6 +804,7 @@ static void team_port_enable(struct team *team,
 	hlist_add_head_rcu(&port->hlist,
 			   team_port_index_hash(team, port->index));
 	team_adjust_ops(team);
+	team_queue_override_port_refresh(team, port);
 	if (team->ops.port_enabled)
 		team->ops.port_enabled(team, port);
 }
@@ -716,6 +833,7 @@ static void team_port_disable(struct team *team,
 	hlist_del_rcu(&port->hlist);
 	__reconstruct_port_hlist(team, port->index);
 	port->index = -1;
+	team_queue_override_port_refresh(team, port);
 	__team_adjust_ops(team, team->en_port_count - 1);
 	/*
 	 * Wait until readers see adjusted ops. This ensures that
@@ -795,16 +913,17 @@ static void team_port_leave(struct team *team, struct team_port *port)
 }
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
-static int team_port_enable_netpoll(struct team *team, struct team_port *port)
+static int team_port_enable_netpoll(struct team *team, struct team_port *port,
+				    gfp_t gfp)
 {
 	struct netpoll *np;
 	int err;
 
-	np = kzalloc(sizeof(*np), GFP_KERNEL);
+	np = kzalloc(sizeof(*np), gfp);
 	if (!np)
 		return -ENOMEM;
 
-	err = __netpoll_setup(np, port->dev);
+	err = __netpoll_setup(np, port->dev, gfp);
 	if (err) {
 		kfree(np);
 		return err;
@@ -833,7 +952,8 @@ static struct netpoll_info *team_netpoll_info(struct team *team)
 }
 
 #else
-static int team_port_enable_netpoll(struct team *team, struct team_port *port)
+static int team_port_enable_netpoll(struct team *team, struct team_port *port,
+				    gfp_t gfp)
 {
 	return 0;
 }
@@ -846,7 +966,9 @@ static struct netpoll_info *team_netpoll_info(struct team *team)
 }
 #endif
 
-static void __team_port_change_check(struct team_port *port, bool linkup);
+static void __team_port_change_port_added(struct team_port *port, bool linkup);
+static int team_dev_type_check_change(struct net_device *dev,
+				      struct net_device *port_dev);
 
 static int team_port_add(struct team *team, struct net_device *port_dev)
 {
@@ -855,9 +977,8 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 	char *portname = port_dev->name;
 	int err;
 
-	if (port_dev->flags & IFF_LOOPBACK ||
-	    port_dev->type != ARPHRD_ETHER) {
-		netdev_err(dev, "Device %s is of an unsupported type\n",
+	if (port_dev->flags & IFF_LOOPBACK) {
+		netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
 			   portname);
 		return -EINVAL;
 	}
@@ -868,6 +989,17 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 		return -EBUSY;
 	}
 
+	if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
+	    vlan_uses_dev(dev)) {
+		netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
+			   portname);
+		return -EPERM;
+	}
+
+	err = team_dev_type_check_change(dev, port_dev);
+	if (err)
+		return err;
+
 	if (port_dev->flags & IFF_UP) {
 		netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
 			   portname);
@@ -881,6 +1013,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 
 	port->dev = port_dev;
 	port->team = team;
+	INIT_LIST_HEAD(&port->qom_list);
 
 	port->orig.mtu = port_dev->mtu;
 	err = dev_set_mtu(port_dev, dev->mtu);
@@ -889,7 +1022,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 		goto err_set_mtu;
 	}
 
-	memcpy(port->orig.dev_addr, port_dev->dev_addr, ETH_ALEN);
+	memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
 
 	err = team_port_enter(team, port);
 	if (err) {
@@ -913,7 +1046,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 	}
 
 	if (team_netpoll_info(team)) {
-		err = team_port_enable_netpoll(team, port);
+		err = team_port_enable_netpoll(team, port, GFP_KERNEL);
 		if (err) {
 			netdev_err(dev, "Failed to enable netpoll on device %s\n",
 				   portname);
@@ -946,7 +1079,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
 	team_port_enable(team, port);
 	list_add_tail_rcu(&port->list, &team->port_list);
 	__team_compute_features(team);
-	__team_port_change_check(port, !!netif_carrier_ok(port_dev));
+	__team_port_change_port_added(port, !!netif_carrier_ok(port_dev));
 	__team_options_change_check(team);
 
 	netdev_info(dev, "Port device %s added\n", portname);
@@ -970,7 +1103,7 @@ err_vids_add:
 
 err_dev_open:
 	team_port_leave(team, port);
-	team_port_set_orig_mac(port);
+	team_port_set_orig_dev_addr(port);
 
 err_port_enter:
 	dev_set_mtu(port_dev, port->orig.mtu);
@@ -981,6 +1114,8 @@ err_set_mtu:
 	return err;
 }
 
+static void __team_port_change_port_removed(struct team_port *port);
+
 static int team_port_del(struct team *team, struct net_device *port_dev)
 {
 	struct net_device *dev = team->dev;
@@ -997,8 +1132,7 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
 	__team_option_inst_mark_removed_port(team, port);
 	__team_options_change_check(team);
 	__team_option_inst_del_port(team, port);
-	port->removed = true;
-	__team_port_change_check(port, false);
+	__team_port_change_port_removed(port);
 	team_port_disable(team, port);
 	list_del_rcu(&port->list);
 	netdev_rx_handler_unregister(port_dev);
@@ -1007,7 +1141,7 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
 	vlan_vids_del_by_dev(port_dev, dev);
 	dev_close(port_dev);
 	team_port_leave(team, port);
-	team_port_set_orig_mac(port);
+	team_port_set_orig_dev_addr(port);
 	dev_set_mtu(port_dev, port->orig.mtu);
 	synchronize_rcu();
 	kfree(port);
@@ -1092,6 +1226,49 @@ static int team_user_linkup_en_option_set(struct team *team,
 	return 0;
 }
 
+static int team_priority_option_get(struct team *team,
+				    struct team_gsetter_ctx *ctx)
+{
+	struct team_port *port = ctx->info->port;
+
+	ctx->data.s32_val = port->priority;
+	return 0;
+}
+
+static int team_priority_option_set(struct team *team,
+				    struct team_gsetter_ctx *ctx)
+{
+	struct team_port *port = ctx->info->port;
+
+	port->priority = ctx->data.s32_val;
+	team_queue_override_port_refresh(team, port);
+	return 0;
+}
+
+static int team_queue_id_option_get(struct team *team,
+				    struct team_gsetter_ctx *ctx)
+{
+	struct team_port *port = ctx->info->port;
+
+	ctx->data.u32_val = port->queue_id;
+	return 0;
+}
+
+static int team_queue_id_option_set(struct team *team,
+				    struct team_gsetter_ctx *ctx)
+{
+	struct team_port *port = ctx->info->port;
+
+	if (port->queue_id == ctx->data.u32_val)
+		return 0;
+	if (ctx->data.u32_val >= team->dev->real_num_tx_queues)
+		return -EINVAL;
+	port->queue_id = ctx->data.u32_val;
+	team_queue_override_port_refresh(team, port);
+	return 0;
+}
+
+
 static const struct team_option team_options[] = {
 	{
 		.name = "mode",
@@ -1120,6 +1297,20 @@ static const struct team_option team_options[] = {
 		.getter = team_user_linkup_en_option_get,
 		.setter = team_user_linkup_en_option_set,
 	},
+	{
+		.name = "priority",
+		.type = TEAM_OPTION_TYPE_S32,
+		.per_port = true,
+		.getter = team_priority_option_get,
+		.setter = team_priority_option_set,
+	},
+	{
+		.name = "queue_id",
+		.type = TEAM_OPTION_TYPE_U32,
+		.per_port = true,
+		.getter = team_queue_id_option_get,
+		.setter = team_queue_id_option_set,
+	},
 };
 
 static struct lock_class_key team_netdev_xmit_lock_key;
@@ -1155,6 +1346,9 @@ static int team_init(struct net_device *dev)
 	for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
 		INIT_HLIST_HEAD(&team->en_port_hlist[i]);
 	INIT_LIST_HEAD(&team->port_list);
+	err = team_queue_override_init(team);
+	if (err)
+		goto err_team_queue_override_init;
 
 	team_adjust_ops(team);
 
@@ -1170,6 +1364,8 @@ static int team_init(struct net_device *dev)
 	return 0;
 
 err_options_register:
+	team_queue_override_fini(team);
+err_team_queue_override_init:
 	free_percpu(team->pcpu_stats);
 
 	return err;
@@ -1187,6 +1383,7 @@ static void team_uninit(struct net_device *dev)
 
 	__team_change_mode(team, NULL); /* cleanup */
 	__team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
+	team_queue_override_fini(team);
 	mutex_unlock(&team->lock);
 }
 
@@ -1216,10 +1413,12 @@ static int team_close(struct net_device *dev)
 static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct team *team = netdev_priv(dev);
-	bool tx_success = false;
+	bool tx_success;
 	unsigned int len = skb->len;
 
-	tx_success = team->ops.transmit(team, skb);
+	tx_success = team_queue_override_transmit(team, skb);
+	if (!tx_success)
+		tx_success = team->ops.transmit(team, skb);
 	if (tx_success) {
 		struct team_pcpu_stats *pcpu_stats;
 
@@ -1293,17 +1492,18 @@ static void team_set_rx_mode(struct net_device *dev)
 
 static int team_set_mac_address(struct net_device *dev, void *p)
 {
+	struct sockaddr *addr = p;
 	struct team *team = netdev_priv(dev);
 	struct team_port *port;
-	int err;
 
-	err = eth_mac_addr(dev, p);
-	if (err)
-		return err;
+	if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+	dev->addr_assign_type &= ~NET_ADDR_RANDOM;
 	rcu_read_lock();
 	list_for_each_entry_rcu(port, &team->port_list, list)
-		if (team->ops.port_change_mac)
-			team->ops.port_change_mac(team, port);
+		if (team->ops.port_change_dev_addr)
+			team->ops.port_change_dev_addr(team, port);
 	rcu_read_unlock();
 	return 0;
 }
@@ -1443,7 +1643,7 @@ static void team_netpoll_cleanup(struct net_device *dev)
 }
 
 static int team_netpoll_setup(struct net_device *dev,
-			      struct netpoll_info *npifo)
+			      struct netpoll_info *npifo, gfp_t gfp)
 {
 	struct team *team = netdev_priv(dev);
 	struct team_port *port;
@@ -1451,7 +1651,7 @@ static int team_netpoll_setup(struct net_device *dev,
 
 	mutex_lock(&team->lock);
 	list_for_each_entry(port, &team->port_list, list) {
-		err = team_port_enable_netpoll(team, port);
+		err = team_port_enable_netpoll(team, port, gfp);
 		if (err) {
 			__team_netpoll_cleanup(team);
 			break;
@@ -1534,6 +1734,45 @@ static const struct net_device_ops team_netdev_ops = {
  * rt netlink interface
  ***********************/
 
+static void team_setup_by_port(struct net_device *dev,
+			       struct net_device *port_dev)
+{
+	dev->header_ops	= port_dev->header_ops;
+	dev->type = port_dev->type;
+	dev->hard_header_len = port_dev->hard_header_len;
+	dev->addr_len = port_dev->addr_len;
+	dev->mtu = port_dev->mtu;
+	memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
+	memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len);
+	dev->addr_assign_type &= ~NET_ADDR_RANDOM;
+}
+
+static int team_dev_type_check_change(struct net_device *dev,
+				      struct net_device *port_dev)
+{
+	struct team *team = netdev_priv(dev);
+	char *portname = port_dev->name;
+	int err;
+
+	if (dev->type == port_dev->type)
+		return 0;
+	if (!list_empty(&team->port_list)) {
+		netdev_err(dev, "Device %s is of different type\n", portname);
+		return -EBUSY;
+	}
+	err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
+	err = notifier_to_errno(err);
+	if (err) {
+		netdev_err(dev, "Refused to change device type\n");
+		return err;
+	}
+	dev_uc_flush(dev);
+	dev_mc_flush(dev);
+	team_setup_by_port(dev, port_dev);
+	call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
+	return 0;
+}
+
 static void team_setup(struct net_device *dev)
 {
 	ether_setup(dev);
@@ -1648,16 +1887,16 @@ static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
+	hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
 			  &team_nl_family, 0, TEAM_CMD_NOOP);
-	if (IS_ERR(hdr)) {
-		err = PTR_ERR(hdr);
+	if (!hdr) {
+		err = -EMSGSIZE;
 		goto err_msg_put;
 	}
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid);
+	return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
 
 err_msg_put:
 	nlmsg_free(msg);
@@ -1714,7 +1953,7 @@ static int team_nl_send_generic(struct genl_info *info, struct team *team,
 	if (err < 0)
 		goto err_fill;
 
-	err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid);
+	err = genlmsg_unicast(genl_info_net(info), skb, info->snd_portid);
 	return err;
 
 err_fill:
@@ -1723,11 +1962,11 @@ err_fill:
 }
 
 typedef int team_nl_send_func_t(struct sk_buff *skb,
-				struct team *team, u32 pid);
+				struct team *team, u32 portid);
 
-static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 pid)
+static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
 {
-	return genlmsg_unicast(dev_net(team->dev), skb, pid);
+	return genlmsg_unicast(dev_net(team->dev), skb, portid);
 }
 
 static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
@@ -1787,6 +2026,12 @@ static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
 		    nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
 			goto nest_cancel;
 		break;
+	case TEAM_OPTION_TYPE_S32:
+		if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
+			goto nest_cancel;
+		if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
+			goto nest_cancel;
+		break;
 	default:
 		BUG();
 	}
@@ -1806,13 +2051,13 @@ nest_cancel:
 }
 
 static int __send_and_alloc_skb(struct sk_buff **pskb,
-				struct team *team, u32 pid,
+				struct team *team, u32 portid,
 				team_nl_send_func_t *send_func)
 {
 	int err;
 
 	if (*pskb) {
-		err = send_func(*pskb, team, pid);
+		err = send_func(*pskb, team, portid);
 		if (err)
 			return err;
 	}
@@ -1822,7 +2067,7 @@ static int __send_and_alloc_skb(struct sk_buff **pskb,
 	return 0;
 }
 
-static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq,
+static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
 				    int flags, team_nl_send_func_t *send_func,
 				    struct list_head *sel_opt_inst_list)
 {
@@ -1839,14 +2084,14 @@ static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq,
 				    struct team_option_inst, tmp_list);
 
 start_again:
-	err = __send_and_alloc_skb(&skb, team, pid, send_func);
+	err = __send_and_alloc_skb(&skb, team, portid, send_func);
 	if (err)
 		return err;
 
-	hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags | NLM_F_MULTI,
+	hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
 			  TEAM_CMD_OPTIONS_GET);
-	if (IS_ERR(hdr))
-		return PTR_ERR(hdr);
+	if (!hdr)
+		return -EMSGSIZE;
 
 	if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
 		goto nla_put_failure;
@@ -1876,15 +2121,15 @@ start_again:
 		goto start_again;
 
 send_done:
-	nlh = nlmsg_put(skb, pid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
+	nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
 	if (!nlh) {
-		err = __send_and_alloc_skb(&skb, team, pid, send_func);
+		err = __send_and_alloc_skb(&skb, team, portid, send_func);
 		if (err)
 			goto errout;
 		goto send_done;
 	}
 
-	return send_func(skb, team, pid);
+	return send_func(skb, team, portid);
 
 nla_put_failure:
 	err = -EMSGSIZE;
@@ -1907,7 +2152,7 @@ static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info)
 
 	list_for_each_entry(opt_inst, &team->option_inst_list, list)
 		list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
-	err = team_nl_send_options_get(team, info->snd_pid, info->snd_seq,
+	err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq,
 				       NLM_F_ACK, team_nl_send_unicast,
 				       &sel_opt_inst_list);
 
@@ -1975,6 +2220,9 @@ static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
 		case NLA_FLAG:
 			opt_type = TEAM_OPTION_TYPE_BOOL;
 			break;
+		case NLA_S32:
+			opt_type = TEAM_OPTION_TYPE_S32;
+			break;
 		default:
 			goto team_put;
 		}
@@ -2031,6 +2279,9 @@ static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
 			case TEAM_OPTION_TYPE_BOOL:
 				ctx.data.bool_val = attr_data ? true : false;
 				break;
+			case TEAM_OPTION_TYPE_S32:
+				ctx.data.s32_val = nla_get_s32(attr_data);
+				break;
 			default:
 				BUG();
 			}
@@ -2055,7 +2306,7 @@ team_put:
 }
 
 static int team_nl_fill_port_list_get(struct sk_buff *skb,
-				      u32 pid, u32 seq, int flags,
+				      u32 portid, u32 seq, int flags,
 				      struct team *team,
 				      bool fillall)
 {
@@ -2063,10 +2314,10 @@ static int team_nl_fill_port_list_get(struct sk_buff *skb,
 	void *hdr;
 	struct team_port *port;
 
-	hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags,
+	hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags,
 			  TEAM_CMD_PORT_LIST_GET);
-	if (IS_ERR(hdr))
-		return PTR_ERR(hdr);
+	if (!hdr)
+		return -EMSGSIZE;
 
 	if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
 		goto nla_put_failure;
@@ -2112,7 +2363,7 @@ static int team_nl_fill_port_list_get_all(struct sk_buff *skb,
 					  struct genl_info *info, int flags,
 					  struct team *team)
 {
-	return team_nl_fill_port_list_get(skb, info->snd_pid,
+	return team_nl_fill_port_list_get(skb, info->snd_portid,
 					  info->snd_seq, NLM_F_ACK,
 					  team, true);
 }
@@ -2165,7 +2416,7 @@ static struct genl_multicast_group team_change_event_mcgrp = {
 };
 
 static int team_nl_send_multicast(struct sk_buff *skb,
-				  struct team *team, u32 pid)
+				  struct team *team, u32 portid)
 {
 	return genlmsg_multicast_netns(dev_net(team->dev), skb, 0,
 				       team_change_event_mcgrp.id, GFP_KERNEL);
@@ -2243,19 +2494,17 @@ static void __team_options_change_check(struct team *team)
 			list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
 	}
 	err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
-	if (err)
+	if (err && err != -ESRCH)
 		netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
 			    err);
 }
 
 /* rtnl lock is held */
-static void __team_port_change_check(struct team_port *port, bool linkup)
+
+static void __team_port_change_send(struct team_port *port, bool linkup)
 {
 	int err;
 
-	if (!port->removed && port->state.linkup == linkup)
-		return;
-
 	port->changed = true;
 	port->state.linkup = linkup;
 	team_refresh_port_linkup(port);
@@ -2274,10 +2523,27 @@ static void __team_port_change_check(struct team_port *port, bool linkup)
 
 send_event:
 	err = team_nl_send_event_port_list_get(port->team);
-	if (err)
-		netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink\n",
-			    port->dev->name);
+	if (err && err != -ESRCH)
+		netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
+			    port->dev->name, err);
+
+}
 
+static void __team_port_change_check(struct team_port *port, bool linkup)
+{
+	if (port->state.linkup != linkup)
+		__team_port_change_send(port, linkup);
+}
+
+static void __team_port_change_port_added(struct team_port *port, bool linkup)
+{
+	__team_port_change_send(port, linkup);
+}
+
+static void __team_port_change_port_removed(struct team_port *port)
+{
+	port->removed = true;
+	__team_port_change_send(port, false);
 }
 
 static void team_port_change_check(struct team_port *port, bool linkup)
diff --git a/drivers/net/team/team_mode_broadcast.c b/drivers/net/team/team_mode_broadcast.c
index c96e4d2967f..9db0171e936 100644
--- a/drivers/net/team/team_mode_broadcast.c
+++ b/drivers/net/team/team_mode_broadcast.c
@@ -48,18 +48,18 @@ static bool bc_transmit(struct team *team, struct sk_buff *skb)
 
 static int bc_port_enter(struct team *team, struct team_port *port)
 {
-	return team_port_set_team_mac(port);
+	return team_port_set_team_dev_addr(port);
 }
 
-static void bc_port_change_mac(struct team *team, struct team_port *port)
+static void bc_port_change_dev_addr(struct team *team, struct team_port *port)
 {
-	team_port_set_team_mac(port);
+	team_port_set_team_dev_addr(port);
 }
 
 static const struct team_mode_ops bc_mode_ops = {
 	.transmit		= bc_transmit,
 	.port_enter		= bc_port_enter,
-	.port_change_mac	= bc_port_change_mac,
+	.port_change_dev_addr	= bc_port_change_dev_addr,
 };
 
 static const struct team_mode bc_mode = {
diff --git a/drivers/net/team/team_mode_roundrobin.c b/drivers/net/team/team_mode_roundrobin.c
index ad7ed0ec544..105135aa8f0 100644
--- a/drivers/net/team/team_mode_roundrobin.c
+++ b/drivers/net/team/team_mode_roundrobin.c
@@ -66,18 +66,18 @@ drop:
 
 static int rr_port_enter(struct team *team, struct team_port *port)
 {
-	return team_port_set_team_mac(port);
+	return team_port_set_team_dev_addr(port);
 }
 
-static void rr_port_change_mac(struct team *team, struct team_port *port)
+static void rr_port_change_dev_addr(struct team *team, struct team_port *port)
 {
-	team_port_set_team_mac(port);
+	team_port_set_team_dev_addr(port);
 }
 
 static const struct team_mode_ops rr_mode_ops = {
 	.transmit		= rr_transmit,
 	.port_enter		= rr_port_enter,
-	.port_change_mac	= rr_port_change_mac,
+	.port_change_dev_addr	= rr_port_change_dev_addr,
 };
 
 static const struct team_mode rr_mode = {
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 926d4db5cb3..0873cdcf39b 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -68,6 +68,7 @@
 #include <net/netns/generic.h>
 #include <net/rtnetlink.h>
 #include <net/sock.h>
+#include <net/cls_cgroup.h>
 
 #include <asm/uaccess.h>
 
@@ -120,8 +121,8 @@ struct tun_sock;
 struct tun_struct {
 	struct tun_file		*tfile;
 	unsigned int 		flags;
-	uid_t			owner;
-	gid_t			group;
+	kuid_t			owner;
+	kgid_t			group;
 
 	struct net_device	*dev;
 	netdev_features_t	set_features;
@@ -187,7 +188,6 @@ static void __tun_detach(struct tun_struct *tun)
 	netif_tx_lock_bh(tun->dev);
 	netif_carrier_off(tun->dev);
 	tun->tfile = NULL;
-	tun->socket.file = NULL;
 	netif_tx_unlock_bh(tun->dev);
 
 	/* Drop read queue */
@@ -1032,8 +1032,8 @@ static void tun_setup(struct net_device *dev)
 {
 	struct tun_struct *tun = netdev_priv(dev);
 
-	tun->owner = -1;
-	tun->group = -1;
+	tun->owner = INVALID_UID;
+	tun->group = INVALID_GID;
 
 	dev->ethtool_ops = &tun_ethtool_ops;
 	dev->destructor = tun_free_netdev;
@@ -1156,14 +1156,20 @@ static ssize_t tun_show_owner(struct device *dev, struct device_attribute *attr,
 			      char *buf)
 {
 	struct tun_struct *tun = netdev_priv(to_net_dev(dev));
-	return sprintf(buf, "%d\n", tun->owner);
+	return uid_valid(tun->owner)?
+		sprintf(buf, "%u\n",
+			from_kuid_munged(current_user_ns(), tun->owner)):
+		sprintf(buf, "-1\n");
 }
 
 static ssize_t tun_show_group(struct device *dev, struct device_attribute *attr,
 			      char *buf)
 {
 	struct tun_struct *tun = netdev_priv(to_net_dev(dev));
-	return sprintf(buf, "%d\n", tun->group);
+	return gid_valid(tun->group) ?
+		sprintf(buf, "%u\n",
+			from_kgid_munged(current_user_ns(), tun->group)):
+		sprintf(buf, "-1\n");
 }
 
 static DEVICE_ATTR(tun_flags, 0444, tun_show_flags, NULL);
@@ -1190,8 +1196,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 		else
 			return -EINVAL;
 
-		if (((tun->owner != -1 && cred->euid != tun->owner) ||
-		     (tun->group != -1 && !in_egroup_p(tun->group))) &&
+		if (((uid_valid(tun->owner) && !uid_eq(cred->euid, tun->owner)) ||
+		     (gid_valid(tun->group) && !in_egroup_p(tun->group))) &&
 		    !capable(CAP_NET_ADMIN))
 			return -EPERM;
 		err = security_tun_dev_attach(tun->socket.sk);
@@ -1375,6 +1381,8 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 	void __user* argp = (void __user*)arg;
 	struct sock_fprog fprog;
 	struct ifreq ifr;
+	kuid_t owner;
+	kgid_t group;
 	int sndbuf;
 	int vnet_hdr_sz;
 	int ret;
@@ -1448,16 +1456,26 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 
 	case TUNSETOWNER:
 		/* Set owner of the device */
-		tun->owner = (uid_t) arg;
-
-		tun_debug(KERN_INFO, tun, "owner set to %d\n", tun->owner);
+		owner = make_kuid(current_user_ns(), arg);
+		if (!uid_valid(owner)) {
+			ret = -EINVAL;
+			break;
+		}
+		tun->owner = owner;
+		tun_debug(KERN_INFO, tun, "owner set to %d\n",
+			  from_kuid(&init_user_ns, tun->owner));
 		break;
 
 	case TUNSETGROUP:
 		/* Set group of the device */
-		tun->group= (gid_t) arg;
-
-		tun_debug(KERN_INFO, tun, "group set to %d\n", tun->group);
+		group = make_kgid(current_user_ns(), arg);
+		if (!gid_valid(group)) {
+			ret = -EINVAL;
+			break;
+		}
+		tun->group = group;
+		tun_debug(KERN_INFO, tun, "group set to %d\n",
+			  from_kgid(&init_user_ns, tun->group));
 		break;
 
 	case TUNSETLINK:
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index 4fd48df6b98..33ab824773c 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -221,7 +221,8 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 	/* Get the MAC address */
 	ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
 	if (ret < 0) {
-		dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
+		netdev_dbg(dev->net, "read AX_CMD_READ_NODE_ID failed: %d\n",
+			   ret);
 		goto out;
 	}
 	memcpy(dev->net->dev_addr, buf, ETH_ALEN);
@@ -303,7 +304,7 @@ static int ax88772_reset(struct usbnet *dev)
 
 	ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
 	if (ret < 0) {
-		dbg("Select PHY #1 failed: %d", ret);
+		netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
 		goto out;
 	}
 
@@ -331,13 +332,13 @@ static int ax88772_reset(struct usbnet *dev)
 
 	msleep(150);
 	rx_ctl = asix_read_rx_ctl(dev);
-	dbg("RX_CTL is 0x%04x after software reset", rx_ctl);
+	netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl);
 	ret = asix_write_rx_ctl(dev, 0x0000);
 	if (ret < 0)
 		goto out;
 
 	rx_ctl = asix_read_rx_ctl(dev);
-	dbg("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);
+	netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl);
 
 	ret = asix_sw_reset(dev, AX_SWRESET_PRL);
 	if (ret < 0)
@@ -364,7 +365,7 @@ static int ax88772_reset(struct usbnet *dev)
 				AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
 				AX88772_IPG2_DEFAULT, 0, NULL);
 	if (ret < 0) {
-		dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
+		netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
 		goto out;
 	}
 
@@ -381,10 +382,13 @@ static int ax88772_reset(struct usbnet *dev)
 		goto out;
 
 	rx_ctl = asix_read_rx_ctl(dev);
-	dbg("RX_CTL is 0x%04x after all initializations", rx_ctl);
+	netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
+		   rx_ctl);
 
 	rx_ctl = asix_read_medium_status(dev);
-	dbg("Medium Status is 0x%04x after all initializations", rx_ctl);
+	netdev_dbg(dev->net,
+		   "Medium Status is 0x%04x after all initializations\n",
+		   rx_ctl);
 
 	return 0;
 
@@ -416,7 +420,7 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 	/* Get the MAC address */
 	ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
 	if (ret < 0) {
-		dbg("Failed to read MAC address: %d", ret);
+		netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
 		return ret;
 	}
 	memcpy(dev->net->dev_addr, buf, ETH_ALEN);
@@ -439,7 +443,7 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 	/* Reset the PHY to normal operation mode */
 	ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL);
 	if (ret < 0) {
-		dbg("Select PHY #1 failed: %d", ret);
+		netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
 		return ret;
 	}
 
@@ -459,7 +463,7 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	/* Read PHYID register *AFTER* the PHY was reset properly */
 	phyid = asix_get_phyid(dev);
-	dbg("PHYID=0x%08x", phyid);
+	netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
 
 	/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
 	if (dev->driver_info->flags & FLAG_FRAMING_AX) {
@@ -575,13 +579,13 @@ static int ax88178_reset(struct usbnet *dev)
 	u32 phyid;
 
 	asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
-	dbg("GPIO Status: 0x%04x", status);
+	netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status);
 
 	asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
 	asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
 	asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL);
 
-	dbg("EEPROM index 0x17 is 0x%04x", eeprom);
+	netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom);
 
 	if (eeprom == cpu_to_le16(0xffff)) {
 		data->phymode = PHY_MODE_MARVELL;
@@ -592,7 +596,7 @@ static int ax88178_reset(struct usbnet *dev)
 		data->ledmode = le16_to_cpu(eeprom) >> 8;
 		gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
 	}
-	dbg("GPIO0: %d, PhyMode: %d", gpio0, data->phymode);
+	netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode);
 
 	/* Power up external GigaPHY through AX88178 GPIO pin */
 	asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
@@ -601,14 +605,14 @@ static int ax88178_reset(struct usbnet *dev)
 		asix_write_gpio(dev, 0x001c, 300);
 		asix_write_gpio(dev, 0x003c, 30);
 	} else {
-		dbg("gpio phymode == 1 path");
+		netdev_dbg(dev->net, "gpio phymode == 1 path\n");
 		asix_write_gpio(dev, AX_GPIO_GPO1EN, 30);
 		asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
 	}
 
 	/* Read PHYID register *AFTER* powering up PHY */
 	phyid = asix_get_phyid(dev);
-	dbg("PHYID=0x%08x", phyid);
+	netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
 
 	/* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
 	asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL);
@@ -770,7 +774,7 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 	/* Get the MAC address */
 	ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf);
 	if (ret < 0) {
-		dbg("Failed to read MAC address: %d", ret);
+		netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
 		return ret;
 	}
 	memcpy(dev->net->dev_addr, buf, ETH_ALEN);
@@ -930,6 +934,10 @@ static const struct usb_device_id	products [] = {
 	USB_DEVICE (0x04f1, 0x3008),
 	.driver_info = (unsigned long) &ax8817x_info,
 }, {
+	// Lenovo U2L100P 10/100
+	USB_DEVICE (0x17ef, 0x7203),
+	.driver_info = (unsigned long) &ax88772_info,
+}, {
 	// ASIX AX88772B 10/100
 	USB_DEVICE (0x0b95, 0x772b),
 	.driver_info = (unsigned long) &ax88772_info,
@@ -962,6 +970,10 @@ static const struct usb_device_id	products [] = {
 	USB_DEVICE (0x2001, 0x3c05),
 	.driver_info = (unsigned long) &ax88772_info,
 }, {
+       // DLink DUB-E100 H/W Ver C1
+       USB_DEVICE (0x2001, 0x1a02),
+       .driver_info = (unsigned long) &ax88772_info,
+}, {
 	// Linksys USB1000
 	USB_DEVICE (0x1737, 0x0039),
 	.driver_info = (unsigned long) &ax88178_info,
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 26c5bebd9ec..18d9579123e 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -236,7 +236,8 @@ static void catc_rx_done(struct urb *urb)
 	}
 
 	if (status) {
-		dbg("rx_done, status %d, length %d", status, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "rx_done, status %d, length %d\n",
+			status, urb->actual_length);
 		return;
 	}
 
@@ -275,10 +276,11 @@ static void catc_rx_done(struct urb *urb)
 		if (atomic_read(&catc->recq_sz)) {
 			int state;
 			atomic_dec(&catc->recq_sz);
-			dbg("getting extra packet");
+			netdev_dbg(catc->netdev, "getting extra packet\n");
 			urb->dev = catc->usbdev;
 			if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
-				dbg("submit(rx_urb) status %d", state);
+				netdev_dbg(catc->netdev,
+					   "submit(rx_urb) status %d\n", state);
 			}
 		} else {
 			clear_bit(RX_RUNNING, &catc->flags);
@@ -317,18 +319,20 @@ static void catc_irq_done(struct urb *urb)
 		return;
 	/* -EPIPE:  should clear the halt */
 	default:		/* error */
-		dbg("irq_done, status %d, data %02x %02x.", status, data[0], data[1]);
+		dev_dbg(&urb->dev->dev,
+			"irq_done, status %d, data %02x %02x.\n",
+			status, data[0], data[1]);
 		goto resubmit;
 	}
 
 	if (linksts == LinkGood) {
 		netif_carrier_on(catc->netdev);
-		dbg("link ok");
+		netdev_dbg(catc->netdev, "link ok\n");
 	}
 
 	if (linksts == LinkBad) {
 		netif_carrier_off(catc->netdev);
-		dbg("link bad");
+		netdev_dbg(catc->netdev, "link bad\n");
 	}
 
 	if (hasdata) {
@@ -385,7 +389,7 @@ static void catc_tx_done(struct urb *urb)
 	int r, status = urb->status;
 
 	if (status == -ECONNRESET) {
-		dbg("Tx Reset.");
+		dev_dbg(&urb->dev->dev, "Tx Reset.\n");
 		urb->status = 0;
 		catc->netdev->trans_start = jiffies;
 		catc->netdev->stats.tx_errors++;
@@ -395,7 +399,8 @@ static void catc_tx_done(struct urb *urb)
 	}
 
 	if (status) {
-		dbg("tx_done, status %d, length %d", status, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "tx_done, status %d, length %d\n",
+			status, urb->actual_length);
 		return;
 	}
 
@@ -511,7 +516,8 @@ static void catc_ctrl_done(struct urb *urb)
 	int status = urb->status;
 
 	if (status)
-		dbg("ctrl_done, status %d, len %d.", status, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "ctrl_done, status %d, len %d.\n",
+			status, urb->actual_length);
 
 	spin_lock_irqsave(&catc->ctrl_lock, flags);
 
@@ -667,7 +673,9 @@ static void catc_set_multicast_list(struct net_device *netdev)
 		f5u011_mchash_async(catc, catc->multicast);
 		if (catc->rxmode[0] != rx) {
 			catc->rxmode[0] = rx;
-			dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]);
+			netdev_dbg(catc->netdev,
+				   "Setting RX mode to %2.2X %2.2X\n",
+				   catc->rxmode[0], catc->rxmode[1]);
 			f5u011_rxmode_async(catc, catc->rxmode);
 		}
 	}
@@ -766,6 +774,7 @@ static const struct net_device_ops catc_netdev_ops = {
 
 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
+	struct device *dev = &intf->dev;
 	struct usb_device *usbdev = interface_to_usbdev(intf);
 	struct net_device *netdev;
 	struct catc *catc;
@@ -774,7 +783,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 
 	if (usb_set_interface(usbdev,
 			intf->altsetting->desc.bInterfaceNumber, 1)) {
-                dev_err(&intf->dev, "Can't set altsetting 1.\n");
+		dev_err(dev, "Can't set altsetting 1.\n");
 		return -EIO;
 	}
 
@@ -817,7 +826,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && 
 	    le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
 	    le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
-		dbg("Testing for f5u011");
+		dev_dbg(dev, "Testing for f5u011\n");
 		catc->is_f5u011 = 1;		
 		atomic_set(&catc->recq_sz, 0);
 		pktsz = RX_PKT_SZ;
@@ -838,7 +847,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
                 catc->irq_buf, 2, catc_irq_done, catc, 1);
 
 	if (!catc->is_f5u011) {
-		dbg("Checking memory size\n");
+		dev_dbg(dev, "Checking memory size\n");
 
 		i = 0x12345678;
 		catc_write_mem(catc, 0x7a80, &i, 4);
@@ -850,7 +859,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 		case 0x12345678:
 			catc_set_reg(catc, TxBufCount, 8);
 			catc_set_reg(catc, RxBufCount, 32);
-			dbg("64k Memory\n");
+			dev_dbg(dev, "64k Memory\n");
 			break;
 		default:
 			dev_warn(&intf->dev,
@@ -858,49 +867,49 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 		case 0x87654321:
 			catc_set_reg(catc, TxBufCount, 4);
 			catc_set_reg(catc, RxBufCount, 16);
-			dbg("32k Memory\n");
+			dev_dbg(dev, "32k Memory\n");
 			break;
 		}
 	  
-		dbg("Getting MAC from SEEROM.");
+		dev_dbg(dev, "Getting MAC from SEEROM.\n");
 	  
 		catc_get_mac(catc, netdev->dev_addr);
 		
-		dbg("Setting MAC into registers.");
+		dev_dbg(dev, "Setting MAC into registers.\n");
 	  
 		for (i = 0; i < 6; i++)
 			catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
 		
-		dbg("Filling the multicast list.");
+		dev_dbg(dev, "Filling the multicast list.\n");
 	  
 		memset(broadcast, 0xff, 6);
 		catc_multicast(broadcast, catc->multicast);
 		catc_multicast(netdev->dev_addr, catc->multicast);
 		catc_write_mem(catc, 0xfa80, catc->multicast, 64);
 		
-		dbg("Clearing error counters.");
+		dev_dbg(dev, "Clearing error counters.\n");
 		
 		for (i = 0; i < 8; i++)
 			catc_set_reg(catc, EthStats + i, 0);
 		catc->last_stats = jiffies;
 		
-		dbg("Enabling.");
+		dev_dbg(dev, "Enabling.\n");
 		
 		catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
 		catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
 		catc_set_reg(catc, LEDCtrl, LEDLink);
 		catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
 	} else {
-		dbg("Performing reset\n");
+		dev_dbg(dev, "Performing reset\n");
 		catc_reset(catc);
 		catc_get_mac(catc, netdev->dev_addr);
 		
-		dbg("Setting RX Mode");
+		dev_dbg(dev, "Setting RX Mode\n");
 		catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
 		catc->rxmode[1] = 0;
 		f5u011_rxmode(catc, catc->rxmode);
 	}
-	dbg("Init done.");
+	dev_dbg(dev, "Init done.\n");
 	printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n",
 	       netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
 	       usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr);
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index 64610048ce8..7d78669000d 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -232,6 +232,7 @@ static int usbpn_open(struct net_device *dev)
 		struct urb *req = usb_alloc_urb(0, GFP_KERNEL);
 
 		if (!req || rx_submit(pnd, req, GFP_KERNEL | __GFP_COLD)) {
+			usb_free_urb(req);
 			usbpn_close(dev);
 			return -ENOMEM;
 		}
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index f4ce5957df3..4cd582a4f62 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1225,6 +1225,26 @@ static const struct usb_device_id cdc_devs[] = {
 	  .driver_info = (unsigned long) &wwan_info,
 	},
 
+	/* Dell branded MBM devices like DW5550 */
+	{ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+		| USB_DEVICE_ID_MATCH_VENDOR,
+	  .idVendor = 0x413c,
+	  .bInterfaceClass = USB_CLASS_COMM,
+	  .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM,
+	  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
+	  .driver_info = (unsigned long) &wwan_info,
+	},
+
+	/* Toshiba branded MBM devices */
+	{ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+		| USB_DEVICE_ID_MATCH_VENDOR,
+	  .idVendor = 0x0930,
+	  .bInterfaceClass = USB_CLASS_COMM,
+	  .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM,
+	  .bInterfaceProtocol = USB_CDC_PROTO_NONE,
+	  .driver_info = (unsigned long) &wwan_info,
+	},
+
 	/* Generic CDC-NCM devices */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM,
 		USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index 49ab45e17fe..1e207f086b7 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -302,18 +302,9 @@ static const struct driver_info	cx82310_info = {
 	.tx_fixup	= cx82310_tx_fixup,
 };
 
-#define USB_DEVICE_CLASS(vend, prod, cl, sc, pr) \
-	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
-		       USB_DEVICE_ID_MATCH_DEV_INFO, \
-	.idVendor = (vend), \
-	.idProduct = (prod), \
-	.bDeviceClass = (cl), \
-	.bDeviceSubClass = (sc), \
-	.bDeviceProtocol = (pr)
-
 static const struct usb_device_id products[] = {
 	{
-		USB_DEVICE_CLASS(0x0572, 0xcb01, 0xff, 0, 0),
+		USB_DEVICE_AND_INTERFACE_INFO(0x0572, 0xcb01, 0xff, 0, 0),
 		.driver_info = (unsigned long) &cx82310_info
 	},
 	{ },
diff --git a/drivers/net/usb/gl620a.c b/drivers/net/usb/gl620a.c
index db3c8021f2a..a7e3f4e55bf 100644
--- a/drivers/net/usb/gl620a.c
+++ b/drivers/net/usb/gl620a.c
@@ -91,7 +91,9 @@ static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 	// get the packet count of the received skb
 	count = le32_to_cpu(header->packet_count);
 	if (count > GL_MAX_TRANSMIT_PACKETS) {
-		dbg("genelink: invalid received packet count %u", count);
+		netdev_dbg(dev->net,
+			   "genelink: invalid received packet count %u\n",
+			   count);
 		return 0;
 	}
 
@@ -107,7 +109,8 @@ static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 
 		// this may be a broken packet
 		if (size > GL_MAX_PACKET_LEN) {
-			dbg("genelink: invalid rx length %d", size);
+			netdev_dbg(dev->net, "genelink: invalid rx length %d\n",
+				   size);
 			return 0;
 		}
 
@@ -133,7 +136,8 @@ static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 	skb_pull(skb, 4);
 
 	if (skb->len > GL_MAX_PACKET_LEN) {
-		dbg("genelink: invalid rx length %d", skb->len);
+		netdev_dbg(dev->net, "genelink: invalid rx length %d\n",
+			   skb->len);
 		return 0;
 	}
 	return 1;
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 62f30b46fa4..605a4baa9b7 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1107,7 +1107,6 @@ static void _hso_serial_set_termios(struct tty_struct *tty,
 				    struct ktermios *old)
 {
 	struct hso_serial *serial = tty->driver_data;
-	struct ktermios *termios;
 
 	if (!serial) {
 		printk(KERN_ERR "%s: no tty structures", __func__);
@@ -1119,16 +1118,15 @@ static void _hso_serial_set_termios(struct tty_struct *tty,
 	/*
 	 *	Fix up unsupported bits
 	 */
-	termios = tty->termios;
-	termios->c_iflag &= ~IXON; /* disable enable XON/XOFF flow control */
+	tty->termios.c_iflag &= ~IXON; /* disable enable XON/XOFF flow control */
 
-	termios->c_cflag &=
+	tty->termios.c_cflag &=
 		~(CSIZE		/* no size */
 		| PARENB	/* disable parity bit */
 		| CBAUD		/* clear current baud rate */
 		| CBAUDEX);	/* clear current buad rate */
 
-	termios->c_cflag |= CS8;	/* character size 8 bits */
+	tty->termios.c_cflag |= CS8;	/* character size 8 bits */
 
 	/* baud rate 115200 */
 	tty_encode_baud_rate(tty, 115200, 115200);
@@ -1425,14 +1423,14 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
 
 	if (old)
 		D5("Termios called with: cflags new[%d] - old[%d]",
-		   tty->termios->c_cflag, old->c_cflag);
+		   tty->termios.c_cflag, old->c_cflag);
 
 	/* the actual setup */
 	spin_lock_irqsave(&serial->serial_lock, flags);
 	if (serial->port.count)
 		_hso_serial_set_termios(tty, old);
 	else
-		tty->termios = old;
+		tty->termios = *old;
 	spin_unlock_irqrestore(&serial->serial_lock, flags);
 
 	/* done */
@@ -2289,9 +2287,11 @@ static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
 	if (minor < 0)
 		goto exit;
 
+	tty_port_init(&serial->port);
+
 	/* register our minor number */
-	serial->parent->dev = tty_register_device(tty_drv, minor,
-					&serial->parent->interface->dev);
+	serial->parent->dev = tty_port_register_device(&serial->port, tty_drv,
+			minor, &serial->parent->interface->dev);
 	dev = serial->parent->dev;
 	dev_set_drvdata(dev, serial->parent);
 	i = device_create_file(dev, &dev_attr_hsotype);
@@ -2300,7 +2300,6 @@ static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
 	serial->minor = minor;
 	serial->magic = HSO_SERIAL_MAGIC;
 	spin_lock_init(&serial->serial_lock);
-	tty_port_init(&serial->port);
 	serial->num_rx_urbs = num_urbs;
 
 	/* RX, allocate urb and initialize */
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index c3d03490c97..c75e11e1b38 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -267,19 +267,16 @@ static int kaweth_control(struct kaweth_device *kaweth,
 	struct usb_ctrlrequest *dr;
 	int retval;
 
-	dbg("kaweth_control()");
+	netdev_dbg(kaweth->net, "kaweth_control()\n");
 
 	if(in_interrupt()) {
-		dbg("in_interrupt()");
+		netdev_dbg(kaweth->net, "in_interrupt()\n");
 		return -EBUSY;
 	}
 
 	dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
-
-	if (!dr) {
-		dbg("kmalloc() failed");
+	if (!dr)
 		return -ENOMEM;
-	}
 
 	dr->bRequestType = requesttype;
 	dr->bRequest = request;
@@ -305,7 +302,7 @@ static int kaweth_read_configuration(struct kaweth_device *kaweth)
 {
 	int retval;
 
-	dbg("Reading kaweth configuration");
+	netdev_dbg(kaweth->net, "Reading kaweth configuration\n");
 
 	retval = kaweth_control(kaweth,
 				usb_rcvctrlpipe(kaweth->dev, 0),
@@ -327,7 +324,7 @@ static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size)
 {
 	int retval;
 
-	dbg("Setting URB size to %d", (unsigned)urb_size);
+	netdev_dbg(kaweth->net, "Setting URB size to %d\n", (unsigned)urb_size);
 
 	retval = kaweth_control(kaweth,
 				usb_sndctrlpipe(kaweth->dev, 0),
@@ -349,7 +346,7 @@ static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait)
 {
 	int retval;
 
-	dbg("Set SOFS wait to %d", (unsigned)sofs_wait);
+	netdev_dbg(kaweth->net, "Set SOFS wait to %d\n", (unsigned)sofs_wait);
 
 	retval = kaweth_control(kaweth,
 				usb_sndctrlpipe(kaweth->dev, 0),
@@ -372,7 +369,8 @@ static int kaweth_set_receive_filter(struct kaweth_device *kaweth,
 {
 	int retval;
 
-	dbg("Set receive filter to %d", (unsigned)receive_filter);
+	netdev_dbg(kaweth->net, "Set receive filter to %d\n",
+		   (unsigned)receive_filter);
 
 	retval = kaweth_control(kaweth,
 				usb_sndctrlpipe(kaweth->dev, 0),
@@ -421,12 +419,13 @@ static int kaweth_download_firmware(struct kaweth_device *kaweth,
 	kaweth->firmware_buf[4] = type;
 	kaweth->firmware_buf[5] = interrupt;
 
-	dbg("High: %i, Low:%i", kaweth->firmware_buf[3],
+	netdev_dbg(kaweth->net, "High: %i, Low:%i\n", kaweth->firmware_buf[3],
 		   kaweth->firmware_buf[2]);
 
-	dbg("Downloading firmware at %p to kaweth device at %p",
-	    fw->data, kaweth);
-	dbg("Firmware length: %d", data_len);
+	netdev_dbg(kaweth->net,
+		   "Downloading firmware at %p to kaweth device at %p\n",
+		   fw->data, kaweth);
+	netdev_dbg(kaweth->net, "Firmware length: %d\n", data_len);
 
 	return kaweth_control(kaweth,
 		              usb_sndctrlpipe(kaweth->dev, 0),
@@ -454,7 +453,7 @@ static int kaweth_trigger_firmware(struct kaweth_device *kaweth,
 	kaweth->firmware_buf[6] = 0x00;
 	kaweth->firmware_buf[7] = 0x00;
 
-	dbg("Triggering firmware");
+	netdev_dbg(kaweth->net, "Triggering firmware\n");
 
 	return kaweth_control(kaweth,
 			      usb_sndctrlpipe(kaweth->dev, 0),
@@ -474,11 +473,11 @@ static int kaweth_reset(struct kaweth_device *kaweth)
 {
 	int result;
 
-	dbg("kaweth_reset(%p)", kaweth);
+	netdev_dbg(kaweth->net, "kaweth_reset(%p)\n", kaweth);
 	result = usb_reset_configuration(kaweth->dev);
 	mdelay(10);
 
-	dbg("kaweth_reset() returns %d.",result);
+	netdev_dbg(kaweth->net, "kaweth_reset() returns %d.\n", result);
 
 	return result;
 }
@@ -595,6 +594,7 @@ static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth);
  ****************************************************************/
 static void kaweth_usb_receive(struct urb *urb)
 {
+	struct device *dev = &urb->dev->dev;
 	struct kaweth_device *kaweth = urb->context;
 	struct net_device *net = kaweth->net;
 	int status = urb->status;
@@ -610,25 +610,25 @@ static void kaweth_usb_receive(struct urb *urb)
 		kaweth->stats.rx_errors++;
 		kaweth->end = 1;
 		wake_up(&kaweth->term_wait);
-		dbg("Status was -EPIPE.");
+		dev_dbg(dev, "Status was -EPIPE.\n");
 		return;
 	}
 	if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) {
 		/* we are killed - set a flag and wake the disconnect handler */
 		kaweth->end = 1;
 		wake_up(&kaweth->term_wait);
-		dbg("Status was -ECONNRESET or -ESHUTDOWN.");
+		dev_dbg(dev, "Status was -ECONNRESET or -ESHUTDOWN.\n");
 		return;
 	}
 	if (unlikely(status == -EPROTO || status == -ETIME ||
 		     status == -EILSEQ)) {
 		kaweth->stats.rx_errors++;
-		dbg("Status was -EPROTO, -ETIME, or -EILSEQ.");
+		dev_dbg(dev, "Status was -EPROTO, -ETIME, or -EILSEQ.\n");
 		return;
 	}
 	if (unlikely(status == -EOVERFLOW)) {
 		kaweth->stats.rx_errors++;
-		dbg("Status was -EOVERFLOW.");
+		dev_dbg(dev, "Status was -EOVERFLOW.\n");
 	}
 	spin_lock(&kaweth->device_lock);
 	if (IS_BLOCKED(kaweth->status)) {
@@ -687,7 +687,7 @@ static int kaweth_open(struct net_device *net)
 	struct kaweth_device *kaweth = netdev_priv(net);
 	int res;
 
-	dbg("Opening network device.");
+	netdev_dbg(kaweth->net, "Opening network device.\n");
 
 	res = usb_autopm_get_interface(kaweth->intf);
 	if (res) {
@@ -787,7 +787,8 @@ static void kaweth_usb_transmit_complete(struct urb *urb)
 
 	if (unlikely(status != 0))
 		if (status != -ENOENT)
-			dbg("%s: TX status %d.", kaweth->net->name, status);
+			dev_dbg(&urb->dev->dev, "%s: TX status %d.\n",
+				kaweth->net->name, status);
 
 	netif_wake_queue(kaweth->net);
 	dev_kfree_skb_irq(skb);
@@ -871,7 +872,7 @@ static void kaweth_set_rx_mode(struct net_device *net)
                                      KAWETH_PACKET_FILTER_BROADCAST |
 		                     KAWETH_PACKET_FILTER_MULTICAST;
 
-	dbg("Setting Rx mode to %d", packet_filter_bitmap);
+	netdev_dbg(net, "Setting Rx mode to %d\n", packet_filter_bitmap);
 
 	netif_stop_queue(net);
 
@@ -916,7 +917,8 @@ static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth)
 			result);
 	}
 	else {
-		dbg("Set Rx mode to %d", packet_filter_bitmap);
+		netdev_dbg(kaweth->net, "Set Rx mode to %d\n",
+			   packet_filter_bitmap);
 	}
 }
 
@@ -951,7 +953,7 @@ static int kaweth_suspend(struct usb_interface *intf, pm_message_t message)
 	struct kaweth_device *kaweth = usb_get_intfdata(intf);
 	unsigned long flags;
 
-	dbg("Suspending device");
+	dev_dbg(&intf->dev, "Suspending device\n");
 	spin_lock_irqsave(&kaweth->device_lock, flags);
 	kaweth->status |= KAWETH_STATUS_SUSPENDING;
 	spin_unlock_irqrestore(&kaweth->device_lock, flags);
@@ -968,7 +970,7 @@ static int kaweth_resume(struct usb_interface *intf)
 	struct kaweth_device *kaweth = usb_get_intfdata(intf);
 	unsigned long flags;
 
-	dbg("Resuming device");
+	dev_dbg(&intf->dev, "Resuming device\n");
 	spin_lock_irqsave(&kaweth->device_lock, flags);
 	kaweth->status &= ~KAWETH_STATUS_SUSPENDING;
 	spin_unlock_irqrestore(&kaweth->device_lock, flags);
@@ -1003,36 +1005,37 @@ static int kaweth_probe(
 		const struct usb_device_id *id      /* from id_table */
 	)
 {
-	struct usb_device *dev = interface_to_usbdev(intf);
+	struct device *dev = &intf->dev;
+	struct usb_device *udev = interface_to_usbdev(intf);
 	struct kaweth_device *kaweth;
 	struct net_device *netdev;
 	const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 	int result = 0;
 
-	dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x",
-		 dev->devnum,
-		 le16_to_cpu(dev->descriptor.idVendor),
-		 le16_to_cpu(dev->descriptor.idProduct),
-		 le16_to_cpu(dev->descriptor.bcdDevice));
+	dev_dbg(dev,
+		"Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n",
+		udev->devnum, le16_to_cpu(udev->descriptor.idVendor),
+		le16_to_cpu(udev->descriptor.idProduct),
+		le16_to_cpu(udev->descriptor.bcdDevice));
 
-	dbg("Device at %p", dev);
+	dev_dbg(dev, "Device at %p\n", udev);
 
-	dbg("Descriptor length: %x type: %x",
-		 (int)dev->descriptor.bLength,
-		 (int)dev->descriptor.bDescriptorType);
+	dev_dbg(dev, "Descriptor length: %x type: %x\n",
+		(int)udev->descriptor.bLength,
+		(int)udev->descriptor.bDescriptorType);
 
 	netdev = alloc_etherdev(sizeof(*kaweth));
 	if (!netdev)
 		return -ENOMEM;
 
 	kaweth = netdev_priv(netdev);
-	kaweth->dev = dev;
+	kaweth->dev = udev;
 	kaweth->net = netdev;
 
 	spin_lock_init(&kaweth->device_lock);
 	init_waitqueue_head(&kaweth->term_wait);
 
-	dbg("Resetting.");
+	dev_dbg(dev, "Resetting.\n");
 
 	kaweth_reset(kaweth);
 
@@ -1041,17 +1044,17 @@ static int kaweth_probe(
 	 * downloaded. Don't try to do it again, or we'll hang the device.
 	 */
 
-	if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) {
-		dev_info(&intf->dev, "Firmware present in device.\n");
+	if (le16_to_cpu(udev->descriptor.bcdDevice) >> 8) {
+		dev_info(dev, "Firmware present in device.\n");
 	} else {
 		/* Download the firmware */
-		dev_info(&intf->dev, "Downloading firmware...\n");
+		dev_info(dev, "Downloading firmware...\n");
 		kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL);
 		if ((result = kaweth_download_firmware(kaweth,
 						      "kaweth/new_code.bin",
 						      100,
 						      2)) < 0) {
-			dev_err(&intf->dev, "Error downloading firmware (%d)\n",
+			dev_err(dev, "Error downloading firmware (%d)\n",
 				result);
 			goto err_fw;
 		}
@@ -1060,8 +1063,7 @@ static int kaweth_probe(
 						      "kaweth/new_code_fix.bin",
 						      100,
 						      3)) < 0) {
-			dev_err(&intf->dev,
-				"Error downloading firmware fix (%d)\n",
+			dev_err(dev, "Error downloading firmware fix (%d)\n",
 				result);
 			goto err_fw;
 		}
@@ -1070,8 +1072,7 @@ static int kaweth_probe(
 						      "kaweth/trigger_code.bin",
 						      126,
 						      2)) < 0) {
-			dev_err(&intf->dev,
-				"Error downloading trigger code (%d)\n",
+			dev_err(dev, "Error downloading trigger code (%d)\n",
 				result);
 			goto err_fw;
 
@@ -1081,19 +1082,18 @@ static int kaweth_probe(
 						      "kaweth/trigger_code_fix.bin",
 						      126,
 						      3)) < 0) {
-			dev_err(&intf->dev, "Error downloading trigger code fix (%d)\n", result);
+			dev_err(dev, "Error downloading trigger code fix (%d)\n", result);
 			goto err_fw;
 		}
 
 
 		if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) {
-			dev_err(&intf->dev, "Error triggering firmware (%d)\n",
-				result);
+			dev_err(dev, "Error triggering firmware (%d)\n", result);
 			goto err_fw;
 		}
 
 		/* Device will now disappear for a moment...  */
-		dev_info(&intf->dev, "Firmware loaded.  I'll be back...\n");
+		dev_info(dev, "Firmware loaded.  I'll be back...\n");
 err_fw:
 		free_page((unsigned long)kaweth->firmware_buf);
 		free_netdev(netdev);
@@ -1103,29 +1103,29 @@ err_fw:
 	result = kaweth_read_configuration(kaweth);
 
 	if(result < 0) {
-		dev_err(&intf->dev, "Error reading configuration (%d), no net device created\n", result);
+		dev_err(dev, "Error reading configuration (%d), no net device created\n", result);
 		goto err_free_netdev;
 	}
 
-	dev_info(&intf->dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask);
-	dev_info(&intf->dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1));
-	dev_info(&intf->dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size));
-	dev_info(&intf->dev, "Read MAC address %pM\n", kaweth->configuration.hw_addr);
+	dev_info(dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask);
+	dev_info(dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1));
+	dev_info(dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size));
+	dev_info(dev, "Read MAC address %pM\n", kaweth->configuration.hw_addr);
 
 	if(!memcmp(&kaweth->configuration.hw_addr,
                    &bcast_addr,
 		   sizeof(bcast_addr))) {
-		dev_err(&intf->dev, "Firmware not functioning properly, no net device created\n");
+		dev_err(dev, "Firmware not functioning properly, no net device created\n");
 		goto err_free_netdev;
 	}
 
 	if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) {
-		dbg("Error setting URB size");
+		dev_dbg(dev, "Error setting URB size\n");
 		goto err_free_netdev;
 	}
 
 	if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) {
-		dev_err(&intf->dev, "Error setting SOFS wait\n");
+		dev_err(dev, "Error setting SOFS wait\n");
 		goto err_free_netdev;
 	}
 
@@ -1135,11 +1135,11 @@ err_fw:
                                            KAWETH_PACKET_FILTER_MULTICAST);
 
 	if(result < 0) {
-		dev_err(&intf->dev, "Error setting receive filter\n");
+		dev_err(dev, "Error setting receive filter\n");
 		goto err_free_netdev;
 	}
 
-	dbg("Initializing net device.");
+	dev_dbg(dev, "Initializing net device.\n");
 
 	kaweth->intf = intf;
 
@@ -1181,20 +1181,20 @@ err_fw:
 
 #if 0
 // dma_supported() is deeply broken on almost all architectures
-	if (dma_supported (&intf->dev, 0xffffffffffffffffULL))
+	if (dma_supported (dev, 0xffffffffffffffffULL))
 		kaweth->net->features |= NETIF_F_HIGHDMA;
 #endif
 
-	SET_NETDEV_DEV(netdev, &intf->dev);
+	SET_NETDEV_DEV(netdev, dev);
 	if (register_netdev(netdev) != 0) {
-		dev_err(&intf->dev, "Error registering netdev.\n");
+		dev_err(dev, "Error registering netdev.\n");
 		goto err_intfdata;
 	}
 
-	dev_info(&intf->dev, "kaweth interface created at %s\n",
+	dev_info(dev, "kaweth interface created at %s\n",
 		 kaweth->net->name);
 
-	dbg("Kaweth probe returning.");
+	dev_dbg(dev, "Kaweth probe returning.\n");
 
 	return 0;
 
@@ -1232,7 +1232,7 @@ static void kaweth_disconnect(struct usb_interface *intf)
 	}
 	netdev = kaweth->net;
 
-	dbg("Unregistering net device");
+	netdev_dbg(kaweth->net, "Unregistering net device\n");
 	unregister_netdev(netdev);
 
 	usb_free_urb(kaweth->rx_urb);
diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c
index 28c4d513ba8..c062a3e8295 100644
--- a/drivers/net/usb/net1080.c
+++ b/drivers/net/usb/net1080.c
@@ -155,12 +155,10 @@ static void nc_dump_registers(struct usbnet *dev)
 	u8	reg;
 	u16	*vp = kmalloc(sizeof (u16));
 
-	if (!vp) {
-		dbg("no memory?");
+	if (!vp)
 		return;
-	}
 
-	dbg("%s registers:", dev->net->name);
+	netdev_dbg(dev->net, "registers:\n");
 	for (reg = 0; reg < 0x20; reg++) {
 		int retval;
 
@@ -172,11 +170,10 @@ static void nc_dump_registers(struct usbnet *dev)
 
 		retval = nc_register_read(dev, reg, vp);
 		if (retval < 0)
-			dbg("%s reg [0x%x] ==> error %d",
-				dev->net->name, reg, retval);
+			netdev_dbg(dev->net, "reg [0x%x] ==> error %d\n",
+				   reg, retval);
 		else
-			dbg("%s reg [0x%x] = 0x%x",
-				dev->net->name, reg, *vp);
+			netdev_dbg(dev->net, "reg [0x%x] = 0x%x\n", reg, *vp);
 	}
 	kfree(vp);
 }
@@ -300,15 +297,15 @@ static int net1080_reset(struct usbnet *dev)
 	// nc_dump_registers(dev);
 
 	if ((retval = nc_register_read(dev, REG_STATUS, vp)) < 0) {
-		dbg("can't read %s-%s status: %d",
-			dev->udev->bus->bus_name, dev->udev->devpath, retval);
+		netdev_dbg(dev->net, "can't read %s-%s status: %d\n",
+			   dev->udev->bus->bus_name, dev->udev->devpath, retval);
 		goto done;
 	}
 	status = *vp;
 	nc_dump_status(dev, status);
 
 	if ((retval = nc_register_read(dev, REG_USBCTL, vp)) < 0) {
-		dbg("can't read USBCTL, %d", retval);
+		netdev_dbg(dev->net, "can't read USBCTL, %d\n", retval);
 		goto done;
 	}
 	usbctl = *vp;
@@ -318,7 +315,7 @@ static int net1080_reset(struct usbnet *dev)
 			USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER);
 
 	if ((retval = nc_register_read(dev, REG_TTL, vp)) < 0) {
-		dbg("can't read TTL, %d", retval);
+		netdev_dbg(dev->net, "can't read TTL, %d\n", retval);
 		goto done;
 	}
 	ttl = *vp;
@@ -326,7 +323,7 @@ static int net1080_reset(struct usbnet *dev)
 
 	nc_register_write(dev, REG_TTL,
 			MK_TTL(NC_READ_TTL_MS, TTL_OTHER(ttl)) );
-	dbg("%s: assigned TTL, %d ms", dev->net->name, NC_READ_TTL_MS);
+	netdev_dbg(dev->net, "assigned TTL, %d ms\n", NC_READ_TTL_MS);
 
 	netif_info(dev, link, dev->net, "port %c, peer %sconnected\n",
 		   (status & STATUS_PORT_A) ? 'A' : 'B',
@@ -350,7 +347,7 @@ static int net1080_check_connect(struct usbnet *dev)
 	status = *vp;
 	kfree(vp);
 	if (retval != 0) {
-		dbg("%s net1080_check_conn read - %d", dev->net->name, retval);
+		netdev_dbg(dev->net, "net1080_check_conn read - %d\n", retval);
 		return retval;
 	}
 	if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER)
@@ -420,11 +417,9 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 	u16			hdr_len, packet_len;
 
 	if (!(skb->len & 0x01)) {
-#ifdef DEBUG
-		struct net_device	*net = dev->net;
-		dbg("rx framesize %d range %d..%d mtu %d", skb->len,
-			net->hard_header_len, dev->hard_mtu, net->mtu);
-#endif
+		netdev_dbg(dev->net, "rx framesize %d range %d..%d mtu %d\n",
+			   skb->len, dev->net->hard_header_len, dev->hard_mtu,
+			   dev->net->mtu);
 		dev->net->stats.rx_frame_errors++;
 		nc_ensure_sync(dev);
 		return 0;
@@ -435,17 +430,17 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 	packet_len = le16_to_cpup(&header->packet_len);
 	if (FRAMED_SIZE(packet_len) > NC_MAX_PACKET) {
 		dev->net->stats.rx_frame_errors++;
-		dbg("packet too big, %d", packet_len);
+		netdev_dbg(dev->net, "packet too big, %d\n", packet_len);
 		nc_ensure_sync(dev);
 		return 0;
 	} else if (hdr_len < MIN_HEADER) {
 		dev->net->stats.rx_frame_errors++;
-		dbg("header too short, %d", hdr_len);
+		netdev_dbg(dev->net, "header too short, %d\n", hdr_len);
 		nc_ensure_sync(dev);
 		return 0;
 	} else if (hdr_len > MIN_HEADER) {
 		// out of band data for us?
-		dbg("header OOB, %d bytes", hdr_len - MIN_HEADER);
+		netdev_dbg(dev->net, "header OOB, %d bytes\n", hdr_len - MIN_HEADER);
 		nc_ensure_sync(dev);
 		// switch (vendor/product ids) { ... }
 	}
@@ -458,23 +453,23 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 	if ((packet_len & 0x01) == 0) {
 		if (skb->data [packet_len] != PAD_BYTE) {
 			dev->net->stats.rx_frame_errors++;
-			dbg("bad pad");
+			netdev_dbg(dev->net, "bad pad\n");
 			return 0;
 		}
 		skb_trim(skb, skb->len - 1);
 	}
 	if (skb->len != packet_len) {
 		dev->net->stats.rx_frame_errors++;
-		dbg("bad packet len %d (expected %d)",
-			skb->len, packet_len);
+		netdev_dbg(dev->net, "bad packet len %d (expected %d)\n",
+			   skb->len, packet_len);
 		nc_ensure_sync(dev);
 		return 0;
 	}
 	if (header->packet_id != get_unaligned(&trailer->packet_id)) {
 		dev->net->stats.rx_fifo_errors++;
-		dbg("(2+ dropped) rx packet_id mismatch 0x%x 0x%x",
-			le16_to_cpu(header->packet_id),
-			le16_to_cpu(trailer->packet_id));
+		netdev_dbg(dev->net, "(2+ dropped) rx packet_id mismatch 0x%x 0x%x\n",
+			   le16_to_cpu(header->packet_id),
+			   le16_to_cpu(trailer->packet_id));
 		return 0;
 	}
 #if 0
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 2ea126a16d7..6883c371c59 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -108,7 +108,7 @@ static int qmi_wwan_register_subdriver(struct usbnet *dev)
 	atomic_set(&info->pmcount, 0);
 
 	/* register subdriver */
-	subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, 512, &qmi_wwan_cdc_wdm_manage_power);
+	subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, 4096, &qmi_wwan_cdc_wdm_manage_power);
 	if (IS_ERR(subdriver)) {
 		dev_err(&info->control->dev, "subdriver registration failed\n");
 		rv = PTR_ERR(subdriver);
@@ -139,10 +139,18 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state)));
 
-	/* require a single interrupt status endpoint for subdriver */
+	/* control and data is shared? */
+	if (intf->cur_altsetting->desc.bNumEndpoints == 3) {
+		info->control = intf;
+		info->data = intf;
+		goto shared;
+	}
+
+	/* else require a single interrupt status endpoint on control intf */
 	if (intf->cur_altsetting->desc.bNumEndpoints != 1)
 		goto err;
 
+	/* and a number of CDC descriptors */
 	while (len > 3) {
 		struct usb_descriptor_header *h = (void *)buf;
 
@@ -231,8 +239,9 @@ next_desc:
 	if (status < 0)
 		goto err;
 
+shared:
 	status = qmi_wwan_register_subdriver(dev);
-	if (status < 0) {
+	if (status < 0 && info->control != info->data) {
 		usb_set_intfdata(info->data, NULL);
 		usb_driver_release_interface(driver, info->data);
 	}
@@ -241,38 +250,6 @@ err:
 	return status;
 }
 
-/* Some devices combine the "control" and "data" functions into a
- * single interface with all three endpoints: interrupt + bulk in and
- * out
- */
-static int qmi_wwan_bind_shared(struct usbnet *dev, struct usb_interface *intf)
-{
-	int rv;
-	struct qmi_wwan_state *info = (void *)&dev->data;
-
-	/* ZTE makes devices where the interface descriptors and endpoint
-	 * configurations of two or more interfaces are identical, even
-	 * though the functions are completely different.  If set, then
-	 * driver_info->data is a bitmap of acceptable interface numbers
-	 * allowing us to bind to one such interface without binding to
-	 * all of them
-	 */
-	if (dev->driver_info->data &&
-	    !test_bit(intf->cur_altsetting->desc.bInterfaceNumber, &dev->driver_info->data)) {
-		dev_info(&intf->dev, "not on our whitelist - ignored");
-		rv = -ENODEV;
-		goto err;
-	}
-
-	/*  control and data is shared */
-	info->control = intf;
-	info->data = intf;
-	rv = qmi_wwan_register_subdriver(dev);
-
-err:
-	return rv;
-}
-
 static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
 {
 	struct qmi_wwan_state *info = (void *)&dev->data;
@@ -315,7 +292,7 @@ static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
 	if (ret < 0)
 		goto err;
 
-	if (info->subdriver && info->subdriver->suspend)
+	if (intf == info->control && info->subdriver && info->subdriver->suspend)
 		ret = info->subdriver->suspend(intf, message);
 	if (ret < 0)
 		usbnet_resume(intf);
@@ -328,13 +305,14 @@ static int qmi_wwan_resume(struct usb_interface *intf)
 	struct usbnet *dev = usb_get_intfdata(intf);
 	struct qmi_wwan_state *info = (void *)&dev->data;
 	int ret = 0;
+	bool callsub = (intf == info->control && info->subdriver && info->subdriver->resume);
 
-	if (info->subdriver && info->subdriver->resume)
+	if (callsub)
 		ret = info->subdriver->resume(intf);
 	if (ret < 0)
 		goto err;
 	ret = usbnet_resume(intf);
-	if (ret < 0 && info->subdriver && info->subdriver->resume && info->subdriver->suspend)
+	if (ret < 0 && callsub && info->subdriver->suspend)
 		info->subdriver->suspend(intf, PMSG_SUSPEND);
 err:
 	return ret;
@@ -348,225 +326,71 @@ static const struct driver_info	qmi_wwan_info = {
 	.manage_power	= qmi_wwan_manage_power,
 };
 
-static const struct driver_info	qmi_wwan_shared = {
-	.description	= "WWAN/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-};
-
-static const struct driver_info	qmi_wwan_force_int0 = {
-	.description	= "Qualcomm WWAN/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-	.data		= BIT(0), /* interface whitelist bitmap */
-};
-
-static const struct driver_info	qmi_wwan_force_int1 = {
-	.description	= "Qualcomm WWAN/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-	.data		= BIT(1), /* interface whitelist bitmap */
-};
-
-static const struct driver_info qmi_wwan_force_int2 = {
-	.description	= "Qualcomm WWAN/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-	.data		= BIT(2), /* interface whitelist bitmap */
-};
-
-static const struct driver_info	qmi_wwan_force_int3 = {
-	.description	= "Qualcomm WWAN/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-	.data		= BIT(3), /* interface whitelist bitmap */
-};
-
-static const struct driver_info	qmi_wwan_force_int4 = {
-	.description	= "Qualcomm WWAN/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-	.data		= BIT(4), /* interface whitelist bitmap */
-};
-
-/* Sierra Wireless provide equally useless interface descriptors
- * Devices in QMI mode can be switched between two different
- * configurations:
- *   a) USB interface #8 is QMI/wwan
- *   b) USB interfaces #8, #19 and #20 are QMI/wwan
- *
- * Both configurations provide a number of other interfaces (serial++),
- * some of which have the same endpoint configuration as we expect, so
- * a whitelist or blacklist is necessary.
- *
- * FIXME: The below whitelist should include BIT(20).  It does not
- * because I cannot get it to work...
- */
-static const struct driver_info	qmi_wwan_sierra = {
-	.description	= "Sierra Wireless wwan/QMI device",
-	.flags		= FLAG_WWAN,
-	.bind		= qmi_wwan_bind_shared,
-	.unbind		= qmi_wwan_unbind,
-	.manage_power	= qmi_wwan_manage_power,
-	.data		= BIT(8) | BIT(19), /* interface whitelist bitmap */
-};
-
 #define HUAWEI_VENDOR_ID	0x12D1
 
+/* map QMI/wwan function by a fixed interface number */
+#define QMI_FIXED_INTF(vend, prod, num) \
+	USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
+	.driver_info = (unsigned long)&qmi_wwan_info
+
 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
 #define QMI_GOBI1K_DEVICE(vend, prod) \
-	USB_DEVICE(vend, prod), \
-	.driver_info = (unsigned long)&qmi_wwan_force_int3
+	QMI_FIXED_INTF(vend, prod, 3)
 
-/* Gobi 2000 and Gobi 3000 QMI/wwan interface number is 0 according to qcserial */
+/* Gobi 2000/3000 QMI/wwan interface number is 0 according to qcserial */
 #define QMI_GOBI_DEVICE(vend, prod) \
-	USB_DEVICE(vend, prod), \
-	.driver_info = (unsigned long)&qmi_wwan_force_int0
+	QMI_FIXED_INTF(vend, prod, 0)
 
 static const struct usb_device_id products[] = {
+	/* 1. CDC ECM like devices match on the control interface */
 	{	/* Huawei E392, E398 and possibly others sharing both device id and more... */
-		.match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = HUAWEI_VENDOR_ID,
-		.bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
-		.bInterfaceSubClass = 1,
-		.bInterfaceProtocol = 9, /* CDC Ethernet *control* interface */
+		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 9),
 		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
 	{	/* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
-		.match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = HUAWEI_VENDOR_ID,
-		.bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
-		.bInterfaceSubClass = 1,
-		.bInterfaceProtocol = 57, /* CDC Ethernet *control* interface */
+		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 57),
 		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
-	{	/* Huawei E392, E398 and possibly others in "Windows mode"
-		 * using a combined control and data interface without any CDC
-		 * functional descriptors
-		 */
-		.match_flags        = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = HUAWEI_VENDOR_ID,
-		.bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
-		.bInterfaceSubClass = 1,
-		.bInterfaceProtocol = 17,
-		.driver_info        = (unsigned long)&qmi_wwan_shared,
-	},
-	{	/* Pantech UML290 */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x106c,
-		.idProduct          = 0x3718,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xf0,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_shared,
-	},
-	{	/* ZTE MF820D */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x0167,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
-	},
-	{	/* ZTE MF821D */
-		.match_flags        = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x0326,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
-	},
-	{	/* ZTE (Vodafone) K3520-Z */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x0055,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int1,
-	},
-	{	/* ZTE (Vodafone) K3565-Z */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x0063,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
-	},
-	{	/* ZTE (Vodafone) K3570-Z */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x1008,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
-	},
-	{	/* ZTE (Vodafone) K3571-Z */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x1010,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
-	},
-	{	/* ZTE (Vodafone) K3765-Z */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x2002,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
+
+	/* 2. Combined interface devices matching on class+protocol */
+	{	/* Huawei E367 and possibly others in "Windows mode" */
+		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 7),
+		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
-	{	/* ZTE (Vodafone) K4505-Z */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x0104,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int4,
+	{	/* Huawei E392, E398 and possibly others in "Windows mode" */
+		USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_VENDOR_SPEC, 1, 17),
+		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
-	{	/* ZTE MF60 */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x19d2,
-		.idProduct          = 0x1402,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_force_int2,
+	{	/* Pantech UML290, P4200 and more */
+		USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf0, 0xff),
+		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
-	{	/* Sierra Wireless MC77xx in QMI mode */
-		.match_flags	    = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO,
-		.idVendor           = 0x1199,
-		.idProduct          = 0x68a2,
-		.bInterfaceClass    = 0xff,
-		.bInterfaceSubClass = 0xff,
-		.bInterfaceProtocol = 0xff,
-		.driver_info        = (unsigned long)&qmi_wwan_sierra,
+	{	/* Pantech UML290 - newer firmware */
+		USB_VENDOR_AND_INTERFACE_INFO(0x106c, USB_CLASS_VENDOR_SPEC, 0xf1, 0xff),
+		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
 
-	/* Gobi 1000 devices */
+	/* 3. Combined interface devices matching on interface number */
+	{QMI_FIXED_INTF(0x19d2, 0x0055, 1)},	/* ZTE (Vodafone) K3520-Z */
+	{QMI_FIXED_INTF(0x19d2, 0x0063, 4)},	/* ZTE (Vodafone) K3565-Z */
+	{QMI_FIXED_INTF(0x19d2, 0x0104, 4)},	/* ZTE (Vodafone) K4505-Z */
+	{QMI_FIXED_INTF(0x19d2, 0x0157, 5)},	/* ZTE MF683 */
+	{QMI_FIXED_INTF(0x19d2, 0x0167, 4)},	/* ZTE MF820D */
+	{QMI_FIXED_INTF(0x19d2, 0x0326, 4)},	/* ZTE MF821D */
+	{QMI_FIXED_INTF(0x19d2, 0x1008, 4)},	/* ZTE (Vodafone) K3570-Z */
+	{QMI_FIXED_INTF(0x19d2, 0x1010, 4)},	/* ZTE (Vodafone) K3571-Z */
+	{QMI_FIXED_INTF(0x19d2, 0x1018, 3)},	/* ZTE (Vodafone) K5006-Z */
+	{QMI_FIXED_INTF(0x19d2, 0x1402, 2)},	/* ZTE MF60 */
+	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
+	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
+	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
+	{QMI_FIXED_INTF(0x1199, 0x68a2, 8)},	/* Sierra Wireless MC7710 in QMI mode */
+	{QMI_FIXED_INTF(0x1199, 0x68a2, 19)},	/* Sierra Wireless MC7710 in QMI mode */
+	{QMI_FIXED_INTF(0x1199, 0x901c, 8)},    /* Sierra Wireless EM7700 */
+
+	/* 4. Gobi 1000 devices */
 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
 	{QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)},	/* HP un2400 Gobi Modem Device */
-	{QMI_GOBI1K_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Mobile Broadband Module */
 	{QMI_GOBI1K_DEVICE(0x04da, 0x250d)},	/* Panasonic Gobi Modem device */
 	{QMI_GOBI1K_DEVICE(0x413c, 0x8172)},	/* Dell Gobi Modem device */
 	{QMI_GOBI1K_DEVICE(0x1410, 0xa001)},	/* Novatel Gobi Modem device */
@@ -579,9 +403,11 @@ static const struct usb_device_id products[] = {
 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9222)},	/* Generic Gobi Modem device */
 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9009)},	/* Generic Gobi Modem device */
 
-	/* Gobi 2000 and 3000 devices */
+	/* 5. Gobi 2000 and 3000 devices */
 	{QMI_GOBI_DEVICE(0x413c, 0x8186)},	/* Dell Gobi 2000 Modem device (N0218, VU936) */
+	{QMI_GOBI_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
 	{QMI_GOBI_DEVICE(0x05c6, 0x920b)},	/* Generic Gobi 2000 Modem device */
+	{QMI_GOBI_DEVICE(0x05c6, 0x920d)},	/* Gobi 3000 Composite */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9225)},	/* Sony Gobi 2000 Modem device (N0279, VU730) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
 	{QMI_GOBI_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
@@ -589,6 +415,8 @@ static const struct usb_device_id products[] = {
 	{QMI_GOBI_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
+	{QMI_GOBI_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
+	{QMI_GOBI_DEVICE(0x1199, 0x68a9)},	/* Sierra Wireless Modem */
 	{QMI_GOBI_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
 	{QMI_GOBI_DEVICE(0x1199, 0x9002)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
 	{QMI_GOBI_DEVICE(0x1199, 0x9003)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
@@ -600,11 +428,17 @@ static const struct usb_device_id products[] = {
 	{QMI_GOBI_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
 	{QMI_GOBI_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
 	{QMI_GOBI_DEVICE(0x1199, 0x9011)},	/* Sierra Wireless Gobi 2000 Modem device (MC8305) */
+	{QMI_FIXED_INTF(0x1199, 0x9011, 5)},	/* alternate interface number!? */
 	{QMI_GOBI_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */
 	{QMI_GOBI_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
+	{QMI_GOBI_DEVICE(0x03f0, 0x371d)},	/* HP un2430 Mobile Broadband Module */
 	{QMI_GOBI_DEVICE(0x1199, 0x9015)},	/* Sierra Wireless Gobi 3000 Modem device */
 	{QMI_GOBI_DEVICE(0x1199, 0x9019)},	/* Sierra Wireless Gobi 3000 Modem device */
+	{QMI_GOBI_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
+	{QMI_GOBI_DEVICE(0x12d1, 0x14f1)},	/* Sony Gobi 3000 Composite */
+	{QMI_GOBI_DEVICE(0x1410, 0xa021)},	/* Foxconn Gobi 3000 Modem device (Novatel E396) */
+
 	{ }					/* END */
 };
 MODULE_DEVICE_TABLE(usb, products);
@@ -620,7 +454,7 @@ static int qmi_wwan_probe(struct usb_interface *intf, const struct usb_device_id
 	 */
 	if (!id->driver_info) {
 		dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
-		id->driver_info = (unsigned long)&qmi_wwan_shared;
+		id->driver_info = (unsigned long)&qmi_wwan_info;
 	}
 
 	return usbnet_probe(intf, id);
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index 0e2c92e0e53..5f39a3b225e 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -275,7 +275,7 @@ static int rtl8150_set_mac_address(struct net_device *netdev, void *p)
 		return -EBUSY;
 
 	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
-	dbg("%s: Setting MAC address to %pM\n", netdev->name, netdev->dev_addr);
+	netdev_dbg(netdev, "Setting MAC address to %pM\n", netdev->dev_addr);
 	/* Set the IDR registers. */
 	set_registers(dev, IDR, netdev->addr_len, netdev->dev_addr);
 #ifdef EEPROM_WRITE
@@ -503,12 +503,12 @@ static void intr_callback(struct urb *urb)
 	if ((d[INT_MSR] & MSR_LINK) == 0) {
 		if (netif_carrier_ok(dev->netdev)) {
 			netif_carrier_off(dev->netdev);
-			dbg("%s: LINK LOST\n", __func__);
+			netdev_dbg(dev->netdev, "%s: LINK LOST\n", __func__);
 		}
 	} else {
 		if (!netif_carrier_ok(dev->netdev)) {
 			netif_carrier_on(dev->netdev);
-			dbg("%s: LINK CAME BACK\n", __func__);
+			netdev_dbg(dev->netdev, "%s: LINK CAME BACK\n", __func__);
 		}
 	}
 
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
index d75d1f56bec..c27d27701ae 100644
--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -68,16 +68,8 @@ static	atomic_t iface_counter = ATOMIC_INIT(0);
  */
 #define SIERRA_NET_USBCTL_BUF_LEN	1024
 
-/* list of interface numbers - used for constructing interface lists */
-struct sierra_net_iface_info {
-	const u32 infolen;	/* number of interface numbers on list */
-	const u8  *ifaceinfo;	/* pointer to the array holding the numbers */
-};
-
-struct sierra_net_info_data {
-	u16 rx_urb_size;
-	struct sierra_net_iface_info whitelist;
-};
+/* Overriding the default usbnet rx_urb_size */
+#define SIERRA_NET_RX_URB_SIZE		(8 * 1024)
 
 /* Private data structure */
 struct sierra_net_data {
@@ -567,7 +559,7 @@ static void sierra_net_defer_kevent(struct usbnet *dev, int work)
 /*
  * Sync Retransmit Timer Handler. On expiry, kick the work queue
  */
-void sierra_sync_timer(unsigned long syncdata)
+static void sierra_sync_timer(unsigned long syncdata)
 {
 	struct usbnet *dev = (struct usbnet *)syncdata;
 
@@ -637,21 +629,6 @@ static int sierra_net_change_mtu(struct net_device *net, int new_mtu)
 	return usbnet_change_mtu(net, new_mtu);
 }
 
-static int is_whitelisted(const u8 ifnum,
-			const struct sierra_net_iface_info *whitelist)
-{
-	if (whitelist) {
-		const u8 *list = whitelist->ifaceinfo;
-		int i;
-
-		for (i = 0; i < whitelist->infolen; i++) {
-			if (list[i] == ifnum)
-				return 1;
-		}
-	}
-	return 0;
-}
-
 static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
 {
 	int result = 0;
@@ -678,7 +655,7 @@ static int sierra_net_get_fw_attr(struct usbnet *dev, u16 *datap)
 		return -EIO;
 	}
 
-	*datap = *attrdata;
+	*datap = le16_to_cpu(*attrdata);
 
 	kfree(attrdata);
 	return result;
@@ -700,17 +677,9 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
 	static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
 		0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
 
-	struct sierra_net_info_data *data =
-			(struct sierra_net_info_data *)dev->driver_info->data;
-
 	dev_dbg(&dev->udev->dev, "%s", __func__);
 
 	ifacenum = intf->cur_altsetting->desc.bInterfaceNumber;
-	/* We only accept certain interfaces */
-	if (!is_whitelisted(ifacenum, &data->whitelist)) {
-		dev_dbg(&dev->udev->dev, "Ignoring interface: %d", ifacenum);
-		return -ENODEV;
-	}
 	numendpoints = intf->cur_altsetting->desc.bNumEndpoints;
 	/* We have three endpoints, bulk in and out, and a status */
 	if (numendpoints != 3) {
@@ -752,9 +721,9 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
 	sierra_net_set_ctx_index(priv, 0);
 
 	/* decrease the rx_urb_size and max_tx_size to 4k on USB 1.1 */
-	dev->rx_urb_size  = data->rx_urb_size;
+	dev->rx_urb_size  = SIERRA_NET_RX_URB_SIZE;
 	if (dev->udev->speed != USB_SPEED_HIGH)
-		dev->rx_urb_size  = min_t(size_t, 4096, data->rx_urb_size);
+		dev->rx_urb_size  = min_t(size_t, 4096, SIERRA_NET_RX_URB_SIZE);
 
 	dev->net->hard_header_len += SIERRA_NET_HIP_EXT_HDR_LEN;
 	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
@@ -869,7 +838,7 @@ static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 				netdev_err(dev->net, "HIP/ETH: Invalid pkt\n");
 
 			dev->net->stats.rx_frame_errors++;
-			/* dev->net->stats.rx_errors incremented by caller */;
+			/* dev->net->stats.rx_errors incremented by caller */
 			return 0;
 		}
 
@@ -893,8 +862,8 @@ static int sierra_net_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 }
 
 /* ---------------------------- Transmit data path ----------------------*/
-struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
-		gfp_t flags)
+static struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev,
+					   struct sk_buff *skb, gfp_t flags)
 {
 	struct sierra_net_data *priv = sierra_net_get_private(dev);
 	u16 len;
@@ -945,15 +914,6 @@ struct sk_buff *sierra_net_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 	return NULL;
 }
 
-static const u8 sierra_net_ifnum_list[] = { 7, 10, 11 };
-static const struct sierra_net_info_data sierra_net_info_data_direct_ip = {
-	.rx_urb_size = 8 * 1024,
-	.whitelist = {
-		.infolen = ARRAY_SIZE(sierra_net_ifnum_list),
-		.ifaceinfo = sierra_net_ifnum_list
-	}
-};
-
 static const struct driver_info sierra_net_info_direct_ip = {
 	.description = "Sierra Wireless USB-to-WWAN Modem",
 	.flags = FLAG_WWAN | FLAG_SEND_ZLP,
@@ -962,18 +922,21 @@ static const struct driver_info sierra_net_info_direct_ip = {
 	.status = sierra_net_status,
 	.rx_fixup = sierra_net_rx_fixup,
 	.tx_fixup = sierra_net_tx_fixup,
-	.data = (unsigned long)&sierra_net_info_data_direct_ip,
 };
 
+#define DIRECT_IP_DEVICE(vend, prod) \
+	{USB_DEVICE_INTERFACE_NUMBER(vend, prod, 7), \
+	.driver_info = (unsigned long)&sierra_net_info_direct_ip}, \
+	{USB_DEVICE_INTERFACE_NUMBER(vend, prod, 10), \
+	.driver_info = (unsigned long)&sierra_net_info_direct_ip}, \
+	{USB_DEVICE_INTERFACE_NUMBER(vend, prod, 11), \
+	.driver_info = (unsigned long)&sierra_net_info_direct_ip}
+
 static const struct usb_device_id products[] = {
-	{USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless USB-to-WWAN modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-	{USB_DEVICE(0x0F3D, 0x68A3), /* AT&T Direct IP modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-	{USB_DEVICE(0x1199, 0x68AA), /* Sierra Wireless Direct IP LTE modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
-	{USB_DEVICE(0x0F3D, 0x68AA), /* AT&T Direct IP LTE modem */
-	.driver_info = (unsigned long) &sierra_net_info_direct_ip},
+	DIRECT_IP_DEVICE(0x1199, 0x68A3), /* Sierra Wireless USB-to-WWAN modem */
+	DIRECT_IP_DEVICE(0x0F3D, 0x68A3), /* AT&T Direct IP modem */
+	DIRECT_IP_DEVICE(0x1199, 0x68AA), /* Sierra Wireless Direct IP LTE modem */
+	DIRECT_IP_DEVICE(0x0F3D, 0x68AA), /* AT&T Direct IP LTE modem */
 
 	{}, /* last item */
 };
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index f5ab6e613ec..b77ae76f4aa 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -52,6 +52,7 @@
 #define USB_PRODUCT_ID_LAN7500		(0x7500)
 #define USB_PRODUCT_ID_LAN7505		(0x7505)
 #define RXW_PADDING			2
+#define SUPPORTED_WAKE			(WAKE_MAGIC)
 
 #define check_warn(ret, fmt, args...) \
 	({ if (ret < 0) netdev_warn(dev->net, fmt, ##args); })
@@ -65,6 +66,7 @@
 struct smsc75xx_priv {
 	struct usbnet *dev;
 	u32 rfe_ctl;
+	u32 wolopts;
 	u32 multicast_hash_table[DP_SEL_VHF_HASH_LEN];
 	struct mutex dataport_mutex;
 	spinlock_t rfe_ctl_lock;
@@ -135,6 +137,30 @@ static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index,
 	return ret;
 }
 
+static int smsc75xx_set_feature(struct usbnet *dev, u32 feature)
+{
+	if (WARN_ON_ONCE(!dev))
+		return -EINVAL;
+
+	cpu_to_le32s(&feature);
+
+	return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+		USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0,
+		USB_CTRL_SET_TIMEOUT);
+}
+
+static int smsc75xx_clear_feature(struct usbnet *dev, u32 feature)
+{
+	if (WARN_ON_ONCE(!dev))
+		return -EINVAL;
+
+	cpu_to_le32s(&feature);
+
+	return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+		USB_REQ_CLEAR_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0,
+		USB_CTRL_SET_TIMEOUT);
+}
+
 /* Loop until the read is completed with timeout
  * called with phy_mutex held */
 static int smsc75xx_phy_wait_not_busy(struct usbnet *dev)
@@ -578,6 +604,26 @@ static int smsc75xx_ethtool_set_eeprom(struct net_device *netdev,
 	return smsc75xx_write_eeprom(dev, ee->offset, ee->len, data);
 }
 
+static void smsc75xx_ethtool_get_wol(struct net_device *net,
+				     struct ethtool_wolinfo *wolinfo)
+{
+	struct usbnet *dev = netdev_priv(net);
+	struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+
+	wolinfo->supported = SUPPORTED_WAKE;
+	wolinfo->wolopts = pdata->wolopts;
+}
+
+static int smsc75xx_ethtool_set_wol(struct net_device *net,
+				    struct ethtool_wolinfo *wolinfo)
+{
+	struct usbnet *dev = netdev_priv(net);
+	struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+
+	pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE;
+	return 0;
+}
+
 static const struct ethtool_ops smsc75xx_ethtool_ops = {
 	.get_link	= usbnet_get_link,
 	.nway_reset	= usbnet_nway_reset,
@@ -589,6 +635,8 @@ static const struct ethtool_ops smsc75xx_ethtool_ops = {
 	.get_eeprom_len	= smsc75xx_ethtool_get_eeprom_len,
 	.get_eeprom	= smsc75xx_ethtool_get_eeprom,
 	.set_eeprom	= smsc75xx_ethtool_set_eeprom,
+	.get_wol	= smsc75xx_ethtool_get_wol,
+	.set_wol	= smsc75xx_ethtool_set_wol,
 };
 
 static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@@ -756,6 +804,26 @@ static int smsc75xx_set_features(struct net_device *netdev,
 	return 0;
 }
 
+static int smsc75xx_wait_ready(struct usbnet *dev)
+{
+	int timeout = 0;
+
+	do {
+		u32 buf;
+		int ret = smsc75xx_read_reg(dev, PMT_CTL, &buf);
+		check_warn_return(ret, "Failed to read PMT_CTL: %d", ret);
+
+		if (buf & PMT_CTL_DEV_RDY)
+			return 0;
+
+		msleep(10);
+		timeout++;
+	} while (timeout < 100);
+
+	netdev_warn(dev->net, "timeout waiting for device ready");
+	return -EIO;
+}
+
 static int smsc75xx_reset(struct usbnet *dev)
 {
 	struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
@@ -764,6 +832,9 @@ static int smsc75xx_reset(struct usbnet *dev)
 
 	netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset");
 
+	ret = smsc75xx_wait_ready(dev);
+	check_warn_return(ret, "device not ready in smsc75xx_reset");
+
 	ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
 	check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
 
@@ -1083,6 +1154,169 @@ static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf)
 	}
 }
 
+static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct usbnet *dev = usb_get_intfdata(intf);
+	struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+	int ret;
+	u32 val;
+
+	ret = usbnet_suspend(intf, message);
+	check_warn_return(ret, "usbnet_suspend error");
+
+	/* if no wol options set, enter lowest power SUSPEND2 mode */
+	if (!(pdata->wolopts & SUPPORTED_WAKE)) {
+		netdev_info(dev->net, "entering SUSPEND2 mode");
+
+		/* disable energy detect (link up) & wake up events */
+		ret = smsc75xx_read_reg(dev, WUCSR, &val);
+		check_warn_return(ret, "Error reading WUCSR");
+
+		val &= ~(WUCSR_MPEN | WUCSR_WUEN);
+
+		ret = smsc75xx_write_reg(dev, WUCSR, val);
+		check_warn_return(ret, "Error writing WUCSR");
+
+		ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+		check_warn_return(ret, "Error reading PMT_CTL");
+
+		val &= ~(PMT_CTL_ED_EN | PMT_CTL_WOL_EN);
+
+		ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+		check_warn_return(ret, "Error writing PMT_CTL");
+
+		/* enter suspend2 mode */
+		ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+		check_warn_return(ret, "Error reading PMT_CTL");
+
+		val &= ~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST);
+		val |= PMT_CTL_SUS_MODE_2;
+
+		ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+		check_warn_return(ret, "Error writing PMT_CTL");
+
+		return 0;
+	}
+
+	if (pdata->wolopts & WAKE_MAGIC) {
+		/* clear any pending magic packet status */
+		ret = smsc75xx_read_reg(dev, WUCSR, &val);
+		check_warn_return(ret, "Error reading WUCSR");
+
+		val |= WUCSR_MPR;
+
+		ret = smsc75xx_write_reg(dev, WUCSR, val);
+		check_warn_return(ret, "Error writing WUCSR");
+	}
+
+	/* enable/disable magic packup wake */
+	ret = smsc75xx_read_reg(dev, WUCSR, &val);
+	check_warn_return(ret, "Error reading WUCSR");
+
+	if (pdata->wolopts & WAKE_MAGIC) {
+		netdev_info(dev->net, "enabling magic packet wakeup");
+		val |= WUCSR_MPEN;
+	} else {
+		netdev_info(dev->net, "disabling magic packet wakeup");
+		val &= ~WUCSR_MPEN;
+	}
+
+	ret = smsc75xx_write_reg(dev, WUCSR, val);
+	check_warn_return(ret, "Error writing WUCSR");
+
+	/* enable wol wakeup source */
+	ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+	check_warn_return(ret, "Error reading PMT_CTL");
+
+	val |= PMT_CTL_WOL_EN;
+
+	ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+	check_warn_return(ret, "Error writing PMT_CTL");
+
+	/* enable receiver */
+	ret = smsc75xx_read_reg(dev, MAC_RX, &val);
+	check_warn_return(ret, "Failed to read MAC_RX: %d", ret);
+
+	val |= MAC_RX_RXEN;
+
+	ret = smsc75xx_write_reg(dev, MAC_RX, val);
+	check_warn_return(ret, "Failed to write MAC_RX: %d", ret);
+
+	/* some wol options are enabled, so enter SUSPEND0 */
+	netdev_info(dev->net, "entering SUSPEND0 mode");
+
+	ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+	check_warn_return(ret, "Error reading PMT_CTL");
+
+	val &= (~(PMT_CTL_SUS_MODE | PMT_CTL_WUPS | PMT_CTL_PHY_RST));
+	val |= PMT_CTL_SUS_MODE_0;
+
+	ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+	check_warn_return(ret, "Error writing PMT_CTL");
+
+	/* clear wol status */
+	val &= ~PMT_CTL_WUPS;
+	val |= PMT_CTL_WUPS_WOL;
+	ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+	check_warn_return(ret, "Error writing PMT_CTL");
+
+	/* read back PMT_CTL */
+	ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+	check_warn_return(ret, "Error reading PMT_CTL");
+
+	smsc75xx_set_feature(dev, USB_DEVICE_REMOTE_WAKEUP);
+
+	return 0;
+}
+
+static int smsc75xx_resume(struct usb_interface *intf)
+{
+	struct usbnet *dev = usb_get_intfdata(intf);
+	struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
+	int ret;
+	u32 val;
+
+	if (pdata->wolopts & WAKE_MAGIC) {
+		netdev_info(dev->net, "resuming from SUSPEND0");
+
+		smsc75xx_clear_feature(dev, USB_DEVICE_REMOTE_WAKEUP);
+
+		/* Disable magic packup wake */
+		ret = smsc75xx_read_reg(dev, WUCSR, &val);
+		check_warn_return(ret, "Error reading WUCSR");
+
+		val &= ~WUCSR_MPEN;
+
+		ret = smsc75xx_write_reg(dev, WUCSR, val);
+		check_warn_return(ret, "Error writing WUCSR");
+
+		/* clear wake-up status */
+		ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+		check_warn_return(ret, "Error reading PMT_CTL");
+
+		val &= ~PMT_CTL_WOL_EN;
+		val |= PMT_CTL_WUPS;
+
+		ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+		check_warn_return(ret, "Error writing PMT_CTL");
+	} else {
+		netdev_info(dev->net, "resuming from SUSPEND2");
+
+		ret = smsc75xx_read_reg(dev, PMT_CTL, &val);
+		check_warn_return(ret, "Error reading PMT_CTL");
+
+		val |= PMT_CTL_PHY_PWRUP;
+
+		ret = smsc75xx_write_reg(dev, PMT_CTL, val);
+		check_warn_return(ret, "Error writing PMT_CTL");
+	}
+
+	ret = smsc75xx_wait_ready(dev);
+	check_warn_return(ret, "device not ready in smsc75xx_resume");
+
+	return usbnet_resume(intf);
+}
+
 static void smsc75xx_rx_csum_offload(struct usbnet *dev, struct sk_buff *skb,
 				     u32 rx_cmd_a, u32 rx_cmd_b)
 {
@@ -1251,8 +1485,9 @@ static struct usb_driver smsc75xx_driver = {
 	.name		= SMSC_CHIPNAME,
 	.id_table	= products,
 	.probe		= usbnet_probe,
-	.suspend	= usbnet_suspend,
-	.resume		= usbnet_resume,
+	.suspend	= smsc75xx_suspend,
+	.resume		= smsc75xx_resume,
+	.reset_resume	= smsc75xx_resume,
 	.disconnect	= usbnet_disconnect,
 	.disable_hub_initiated_lpm = 1,
 };
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index d45e539a84b..7479a5761d0 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -46,11 +46,22 @@
 #define SMSC95XX_INTERNAL_PHY_ID	(1)
 #define SMSC95XX_TX_OVERHEAD		(8)
 #define SMSC95XX_TX_OVERHEAD_CSUM	(12)
+#define SUPPORTED_WAKE			(WAKE_MAGIC)
+
+#define check_warn(ret, fmt, args...) \
+	({ if (ret < 0) netdev_warn(dev->net, fmt, ##args); })
+
+#define check_warn_return(ret, fmt, args...) \
+	({ if (ret < 0) { netdev_warn(dev->net, fmt, ##args); return ret; } })
+
+#define check_warn_goto_done(ret, fmt, args...) \
+	({ if (ret < 0) { netdev_warn(dev->net, fmt, ##args); goto done; } })
 
 struct smsc95xx_priv {
 	u32 mac_cr;
 	u32 hash_hi;
 	u32 hash_lo;
+	u32 wolopts;
 	spinlock_t mac_cr_lock;
 };
 
@@ -63,7 +74,8 @@ static bool turbo_mode = true;
 module_param(turbo_mode, bool, 0644);
 MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
 
-static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
+static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index,
+					  u32 *data)
 {
 	u32 *buf = kmalloc(4, GFP_KERNEL);
 	int ret;
@@ -88,7 +100,8 @@ static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
 	return ret;
 }
 
-static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data)
+static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index,
+					   u32 data)
 {
 	u32 *buf = kmalloc(4, GFP_KERNEL);
 	int ret;
@@ -114,15 +127,41 @@ static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data)
 	return ret;
 }
 
+static int smsc95xx_set_feature(struct usbnet *dev, u32 feature)
+{
+	if (WARN_ON_ONCE(!dev))
+		return -EINVAL;
+
+	cpu_to_le32s(&feature);
+
+	return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+		USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0,
+		USB_CTRL_SET_TIMEOUT);
+}
+
+static int smsc95xx_clear_feature(struct usbnet *dev, u32 feature)
+{
+	if (WARN_ON_ONCE(!dev))
+		return -EINVAL;
+
+	cpu_to_le32s(&feature);
+
+	return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+		USB_REQ_CLEAR_FEATURE, USB_RECIP_DEVICE, feature, 0, NULL, 0,
+		USB_CTRL_SET_TIMEOUT);
+}
+
 /* Loop until the read is completed with timeout
  * called with phy_mutex held */
-static int smsc95xx_phy_wait_not_busy(struct usbnet *dev)
+static int __must_check smsc95xx_phy_wait_not_busy(struct usbnet *dev)
 {
 	unsigned long start_time = jiffies;
 	u32 val;
+	int ret;
 
 	do {
-		smsc95xx_read_reg(dev, MII_ADDR, &val);
+		ret = smsc95xx_read_reg(dev, MII_ADDR, &val);
+		check_warn_return(ret, "Error reading MII_ACCESS");
 		if (!(val & MII_BUSY_))
 			return 0;
 	} while (!time_after(jiffies, start_time + HZ));
@@ -134,33 +173,32 @@ static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
 {
 	struct usbnet *dev = netdev_priv(netdev);
 	u32 val, addr;
+	int ret;
 
 	mutex_lock(&dev->phy_mutex);
 
 	/* confirm MII not busy */
-	if (smsc95xx_phy_wait_not_busy(dev)) {
-		netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_read\n");
-		mutex_unlock(&dev->phy_mutex);
-		return -EIO;
-	}
+	ret = smsc95xx_phy_wait_not_busy(dev);
+	check_warn_goto_done(ret, "MII is busy in smsc95xx_mdio_read");
 
 	/* set the address, index & direction (read from PHY) */
 	phy_id &= dev->mii.phy_id_mask;
 	idx &= dev->mii.reg_num_mask;
 	addr = (phy_id << 11) | (idx << 6) | MII_READ_;
-	smsc95xx_write_reg(dev, MII_ADDR, addr);
+	ret = smsc95xx_write_reg(dev, MII_ADDR, addr);
+	check_warn_goto_done(ret, "Error writing MII_ADDR");
 
-	if (smsc95xx_phy_wait_not_busy(dev)) {
-		netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx);
-		mutex_unlock(&dev->phy_mutex);
-		return -EIO;
-	}
+	ret = smsc95xx_phy_wait_not_busy(dev);
+	check_warn_goto_done(ret, "Timed out reading MII reg %02X", idx);
 
-	smsc95xx_read_reg(dev, MII_DATA, &val);
+	ret = smsc95xx_read_reg(dev, MII_DATA, &val);
+	check_warn_goto_done(ret, "Error reading MII_DATA");
 
-	mutex_unlock(&dev->phy_mutex);
+	ret = (u16)(val & 0xFFFF);
 
-	return (u16)(val & 0xFFFF);
+done:
+	mutex_unlock(&dev->phy_mutex);
+	return ret;
 }
 
 static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
@@ -168,38 +206,41 @@ static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
 {
 	struct usbnet *dev = netdev_priv(netdev);
 	u32 val, addr;
+	int ret;
 
 	mutex_lock(&dev->phy_mutex);
 
 	/* confirm MII not busy */
-	if (smsc95xx_phy_wait_not_busy(dev)) {
-		netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_write\n");
-		mutex_unlock(&dev->phy_mutex);
-		return;
-	}
+	ret = smsc95xx_phy_wait_not_busy(dev);
+	check_warn_goto_done(ret, "MII is busy in smsc95xx_mdio_write");
 
 	val = regval;
-	smsc95xx_write_reg(dev, MII_DATA, val);
+	ret = smsc95xx_write_reg(dev, MII_DATA, val);
+	check_warn_goto_done(ret, "Error writing MII_DATA");
 
 	/* set the address, index & direction (write to PHY) */
 	phy_id &= dev->mii.phy_id_mask;
 	idx &= dev->mii.reg_num_mask;
 	addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
-	smsc95xx_write_reg(dev, MII_ADDR, addr);
+	ret = smsc95xx_write_reg(dev, MII_ADDR, addr);
+	check_warn_goto_done(ret, "Error writing MII_ADDR");
 
-	if (smsc95xx_phy_wait_not_busy(dev))
-		netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx);
+	ret = smsc95xx_phy_wait_not_busy(dev);
+	check_warn_goto_done(ret, "Timed out writing MII reg %02X", idx);
 
+done:
 	mutex_unlock(&dev->phy_mutex);
 }
 
-static int smsc95xx_wait_eeprom(struct usbnet *dev)
+static int __must_check smsc95xx_wait_eeprom(struct usbnet *dev)
 {
 	unsigned long start_time = jiffies;
 	u32 val;
+	int ret;
 
 	do {
-		smsc95xx_read_reg(dev, E2P_CMD, &val);
+		ret = smsc95xx_read_reg(dev, E2P_CMD, &val);
+		check_warn_return(ret, "Error reading E2P_CMD");
 		if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
 			break;
 		udelay(40);
@@ -213,13 +254,15 @@ static int smsc95xx_wait_eeprom(struct usbnet *dev)
 	return 0;
 }
 
-static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
+static int __must_check smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
 {
 	unsigned long start_time = jiffies;
 	u32 val;
+	int ret;
 
 	do {
-		smsc95xx_read_reg(dev, E2P_CMD, &val);
+		ret = smsc95xx_read_reg(dev, E2P_CMD, &val);
+		check_warn_return(ret, "Error reading E2P_CMD");
 
 		if (!(val & E2P_CMD_BUSY_))
 			return 0;
@@ -246,13 +289,15 @@ static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
 
 	for (i = 0; i < length; i++) {
 		val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
-		smsc95xx_write_reg(dev, E2P_CMD, val);
+		ret = smsc95xx_write_reg(dev, E2P_CMD, val);
+		check_warn_return(ret, "Error writing E2P_CMD");
 
 		ret = smsc95xx_wait_eeprom(dev);
 		if (ret < 0)
 			return ret;
 
-		smsc95xx_read_reg(dev, E2P_DATA, &val);
+		ret = smsc95xx_read_reg(dev, E2P_DATA, &val);
+		check_warn_return(ret, "Error reading E2P_DATA");
 
 		data[i] = val & 0xFF;
 		offset++;
@@ -276,7 +321,8 @@ static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
 
 	/* Issue write/erase enable command */
 	val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
-	smsc95xx_write_reg(dev, E2P_CMD, val);
+	ret = smsc95xx_write_reg(dev, E2P_CMD, val);
+	check_warn_return(ret, "Error writing E2P_DATA");
 
 	ret = smsc95xx_wait_eeprom(dev);
 	if (ret < 0)
@@ -286,11 +332,13 @@ static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
 
 		/* Fill data register */
 		val = data[i];
-		smsc95xx_write_reg(dev, E2P_DATA, val);
+		ret = smsc95xx_write_reg(dev, E2P_DATA, val);
+		check_warn_return(ret, "Error writing E2P_DATA");
 
 		/* Send "write" command */
 		val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
-		smsc95xx_write_reg(dev, E2P_CMD, val);
+		ret = smsc95xx_write_reg(dev, E2P_CMD, val);
+		check_warn_return(ret, "Error writing E2P_CMD");
 
 		ret = smsc95xx_wait_eeprom(dev);
 		if (ret < 0)
@@ -308,14 +356,14 @@ static void smsc95xx_async_cmd_callback(struct urb *urb)
 	struct usbnet *dev = usb_context->dev;
 	int status = urb->status;
 
-	if (status < 0)
-		netdev_warn(dev->net, "async callback failed with %d\n", status);
+	check_warn(status, "async callback failed with %d\n", status);
 
 	kfree(usb_context);
 	usb_free_urb(urb);
 }
 
-static int smsc95xx_write_reg_async(struct usbnet *dev, u16 index, u32 *data)
+static int __must_check smsc95xx_write_reg_async(struct usbnet *dev, u16 index,
+						 u32 *data)
 {
 	struct usb_context *usb_context;
 	int status;
@@ -371,6 +419,7 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 	struct usbnet *dev = netdev_priv(netdev);
 	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
 	unsigned long flags;
+	int ret;
 
 	pdata->hash_hi = 0;
 	pdata->hash_lo = 0;
@@ -411,21 +460,23 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
 
 	/* Initiate async writes, as we can't wait for completion here */
-	smsc95xx_write_reg_async(dev, HASHH, &pdata->hash_hi);
-	smsc95xx_write_reg_async(dev, HASHL, &pdata->hash_lo);
-	smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
+	ret = smsc95xx_write_reg_async(dev, HASHH, &pdata->hash_hi);
+	check_warn(ret, "failed to initiate async write to HASHH");
+
+	ret = smsc95xx_write_reg_async(dev, HASHL, &pdata->hash_lo);
+	check_warn(ret, "failed to initiate async write to HASHL");
+
+	ret = smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
+	check_warn(ret, "failed to initiate async write to MAC_CR");
 }
 
-static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
-					    u16 lcladv, u16 rmtadv)
+static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
+					   u16 lcladv, u16 rmtadv)
 {
 	u32 flow, afc_cfg = 0;
 
 	int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
-	if (ret < 0) {
-		netdev_warn(dev->net, "error reading AFC_CFG\n");
-		return;
-	}
+	check_warn_return(ret, "Error reading AFC_CFG");
 
 	if (duplex == DUPLEX_FULL) {
 		u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
@@ -449,8 +500,13 @@ static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
 		afc_cfg |= 0xF;
 	}
 
-	smsc95xx_write_reg(dev, FLOW, flow);
-	smsc95xx_write_reg(dev,	AFC_CFG, afc_cfg);
+	ret = smsc95xx_write_reg(dev, FLOW, flow);
+	check_warn_return(ret, "Error writing FLOW");
+
+	ret = smsc95xx_write_reg(dev, AFC_CFG, afc_cfg);
+	check_warn_return(ret, "Error writing AFC_CFG");
+
+	return 0;
 }
 
 static int smsc95xx_link_reset(struct usbnet *dev)
@@ -460,12 +516,14 @@ static int smsc95xx_link_reset(struct usbnet *dev)
 	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
 	unsigned long flags;
 	u16 lcladv, rmtadv;
-	u32 intdata;
+	int ret;
 
 	/* clear interrupt status */
-	smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
-	intdata = 0xFFFFFFFF;
-	smsc95xx_write_reg(dev, INT_STS, intdata);
+	ret = smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
+	check_warn_return(ret, "Error reading PHY_INT_SRC");
+
+	ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
+	check_warn_return(ret, "Error writing INT_STS");
 
 	mii_check_media(mii, 1, 1);
 	mii_ethtool_gset(&dev->mii, &ecmd);
@@ -486,9 +544,11 @@ static int smsc95xx_link_reset(struct usbnet *dev)
 	}
 	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
 
-	smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+	ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+	check_warn_return(ret, "Error writing MAC_CR");
 
-	smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+	ret = smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+	check_warn_return(ret, "Error updating PHY flow control");
 
 	return 0;
 }
@@ -524,10 +584,7 @@ static int smsc95xx_set_features(struct net_device *netdev,
 	int ret;
 
 	ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read COE_CR: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read COE_CR: %d\n", ret);
 
 	if (features & NETIF_F_HW_CSUM)
 		read_buf |= Tx_COE_EN_;
@@ -540,10 +597,7 @@ static int smsc95xx_set_features(struct net_device *netdev,
 		read_buf &= ~Rx_COE_EN_;
 
 	ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write COE_CR: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write COE_CR: %d\n", ret);
 
 	netif_dbg(dev, hw, dev->net, "COE_CR = 0x%08x\n", read_buf);
 	return 0;
@@ -608,6 +662,26 @@ smsc95xx_ethtool_getregs(struct net_device *netdev, struct ethtool_regs *regs,
 	}
 }
 
+static void smsc95xx_ethtool_get_wol(struct net_device *net,
+				     struct ethtool_wolinfo *wolinfo)
+{
+	struct usbnet *dev = netdev_priv(net);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+	wolinfo->supported = SUPPORTED_WAKE;
+	wolinfo->wolopts = pdata->wolopts;
+}
+
+static int smsc95xx_ethtool_set_wol(struct net_device *net,
+				    struct ethtool_wolinfo *wolinfo)
+{
+	struct usbnet *dev = netdev_priv(net);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+	pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE;
+	return 0;
+}
+
 static const struct ethtool_ops smsc95xx_ethtool_ops = {
 	.get_link	= usbnet_get_link,
 	.nway_reset	= usbnet_nway_reset,
@@ -621,6 +695,8 @@ static const struct ethtool_ops smsc95xx_ethtool_ops = {
 	.set_eeprom	= smsc95xx_ethtool_set_eeprom,
 	.get_regs_len	= smsc95xx_ethtool_getregslen,
 	.get_regs	= smsc95xx_ethtool_getregs,
+	.get_wol	= smsc95xx_ethtool_get_wol,
+	.set_wol	= smsc95xx_ethtool_set_wol,
 };
 
 static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@@ -658,55 +734,56 @@ static int smsc95xx_set_mac_address(struct usbnet *dev)
 	int ret;
 
 	ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write ADDRL: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write ADDRL: %d\n", ret);
 
 	ret = smsc95xx_write_reg(dev, ADDRH, addr_hi);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write ADDRH: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write ADDRH: %d\n", ret);
 
 	return 0;
 }
 
 /* starts the TX path */
-static void smsc95xx_start_tx_path(struct usbnet *dev)
+static int smsc95xx_start_tx_path(struct usbnet *dev)
 {
 	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
 	unsigned long flags;
-	u32 reg_val;
+	int ret;
 
 	/* Enable Tx at MAC */
 	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
 	pdata->mac_cr |= MAC_CR_TXEN_;
 	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
 
-	smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+	ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+	check_warn_return(ret, "Failed to write MAC_CR: %d\n", ret);
 
 	/* Enable Tx at SCSRs */
-	reg_val = TX_CFG_ON_;
-	smsc95xx_write_reg(dev, TX_CFG, reg_val);
+	ret = smsc95xx_write_reg(dev, TX_CFG, TX_CFG_ON_);
+	check_warn_return(ret, "Failed to write TX_CFG: %d\n", ret);
+
+	return 0;
 }
 
 /* Starts the Receive path */
-static void smsc95xx_start_rx_path(struct usbnet *dev)
+static int smsc95xx_start_rx_path(struct usbnet *dev)
 {
 	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
 	unsigned long flags;
+	int ret;
 
 	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
 	pdata->mac_cr |= MAC_CR_RXEN_;
 	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
 
-	smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+	ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+	check_warn_return(ret, "Failed to write MAC_CR: %d\n", ret);
+
+	return 0;
 }
 
 static int smsc95xx_phy_initialize(struct usbnet *dev)
 {
-	int bmcr, timeout = 0;
+	int bmcr, ret, timeout = 0;
 
 	/* Initialize MII structure */
 	dev->mii.dev = dev->net;
@@ -735,7 +812,8 @@ static int smsc95xx_phy_initialize(struct usbnet *dev)
 		ADVERTISE_PAUSE_ASYM);
 
 	/* read to clear */
-	smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
+	ret = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
+	check_warn_return(ret, "Failed to read PHY_INT_SRC during init");
 
 	smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
 		PHY_INT_MASK_DEFAULT_);
@@ -753,22 +831,14 @@ static int smsc95xx_reset(struct usbnet *dev)
 
 	netif_dbg(dev, ifup, dev->net, "entering smsc95xx_reset\n");
 
-	write_buf = HW_CFG_LRST_;
-	ret = smsc95xx_write_reg(dev, HW_CFG, write_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write HW_CFG_LRST_ bit in HW_CFG register, ret = %d\n",
-			    ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, HW_CFG, HW_CFG_LRST_);
+	check_warn_return(ret, "Failed to write HW_CFG_LRST_ bit in HW_CFG\n");
 
 	timeout = 0;
 	do {
-		ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
-		if (ret < 0) {
-			netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
-			return ret;
-		}
 		msleep(10);
+		ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+		check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret);
 		timeout++;
 	} while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
 
@@ -777,21 +847,14 @@ static int smsc95xx_reset(struct usbnet *dev)
 		return ret;
 	}
 
-	write_buf = PM_CTL_PHY_RST_;
-	ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write PM_CTRL: %d\n", ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, PM_CTRL, PM_CTL_PHY_RST_);
+	check_warn_return(ret, "Failed to write PM_CTRL: %d\n", ret);
 
 	timeout = 0;
 	do {
-		ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
-		if (ret < 0) {
-			netdev_warn(dev->net, "Failed to read PM_CTRL: %d\n", ret);
-			return ret;
-		}
 		msleep(10);
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
+		check_warn_return(ret, "Failed to read PM_CTRL: %d\n", ret);
 		timeout++;
 	} while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
 
@@ -808,10 +871,7 @@ static int smsc95xx_reset(struct usbnet *dev)
 		  "MAC Address: %pM\n", dev->net->dev_addr);
 
 	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret);
 
 	netif_dbg(dev, ifup, dev->net,
 		  "Read Value from HW_CFG : 0x%08x\n", read_buf);
@@ -819,17 +879,10 @@ static int smsc95xx_reset(struct usbnet *dev)
 	read_buf |= HW_CFG_BIR_;
 
 	ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write HW_CFG_BIR_ bit in HW_CFG register, ret = %d\n",
-			    ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write HW_CFG_BIR_ bit in HW_CFG\n");
 
 	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret);
 	netif_dbg(dev, ifup, dev->net,
 		  "Read Value from HW_CFG after writing HW_CFG_BIR_: 0x%08x\n",
 		  read_buf);
@@ -849,41 +902,28 @@ static int smsc95xx_reset(struct usbnet *dev)
 		  "rx_urb_size=%ld\n", (ulong)dev->rx_urb_size);
 
 	ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write BURST_CAP: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write BURST_CAP: %d\n", ret);
 
 	ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read BURST_CAP: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read BURST_CAP: %d\n", ret);
+
 	netif_dbg(dev, ifup, dev->net,
 		  "Read Value from BURST_CAP after writing: 0x%08x\n",
 		  read_buf);
 
-	read_buf = DEFAULT_BULK_IN_DELAY;
-	ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "ret = %d\n", ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY);
+	check_warn_return(ret, "Failed to write BULK_IN_DLY: %d\n", ret);
 
 	ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read BULK_IN_DLY: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read BULK_IN_DLY: %d\n", ret);
+
 	netif_dbg(dev, ifup, dev->net,
 		  "Read Value from BULK_IN_DLY after writing: 0x%08x\n",
 		  read_buf);
 
 	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret);
+
 	netif_dbg(dev, ifup, dev->net,
 		  "Read Value from HW_CFG: 0x%08x\n", read_buf);
 
@@ -896,101 +936,66 @@ static int smsc95xx_reset(struct usbnet *dev)
 	read_buf |= NET_IP_ALIGN << 9;
 
 	ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write HW_CFG register, ret=%d\n",
-			    ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write HW_CFG: %d\n", ret);
 
 	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read HW_CFG: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read HW_CFG: %d\n", ret);
+
 	netif_dbg(dev, ifup, dev->net,
 		  "Read Value from HW_CFG after writing: 0x%08x\n", read_buf);
 
-	write_buf = 0xFFFFFFFF;
-	ret = smsc95xx_write_reg(dev, INT_STS, write_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write INT_STS register, ret=%d\n",
-			    ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
+	check_warn_return(ret, "Failed to write INT_STS: %d\n", ret);
 
 	ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read ID_REV: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read ID_REV: %d\n", ret);
 	netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", read_buf);
 
 	/* Configure GPIO pins as LED outputs */
 	write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
 		LED_GPIO_CFG_FDX_LED;
 	ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write LED_GPIO_CFG register, ret=%d\n",
-			    ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write LED_GPIO_CFG: %d\n", ret);
 
 	/* Init Tx */
-	write_buf = 0;
-	ret = smsc95xx_write_reg(dev, FLOW, write_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write FLOW: %d\n", ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, FLOW, 0);
+	check_warn_return(ret, "Failed to write FLOW: %d\n", ret);
 
-	read_buf = AFC_CFG_DEFAULT;
-	ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write AFC_CFG: %d\n", ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, AFC_CFG, AFC_CFG_DEFAULT);
+	check_warn_return(ret, "Failed to write AFC_CFG: %d\n", ret);
 
 	/* Don't need mac_cr_lock during initialisation */
 	ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read MAC_CR: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read MAC_CR: %d\n", ret);
 
 	/* Init Rx */
 	/* Set Vlan */
-	write_buf = (u32)ETH_P_8021Q;
-	ret = smsc95xx_write_reg(dev, VLAN1, write_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write VAN1: %d\n", ret);
-		return ret;
-	}
+	ret = smsc95xx_write_reg(dev, VLAN1, (u32)ETH_P_8021Q);
+	check_warn_return(ret, "Failed to write VLAN1: %d\n", ret);
 
 	/* Enable or disable checksum offload engines */
-	smsc95xx_set_features(dev->net, dev->net->features);
+	ret = smsc95xx_set_features(dev->net, dev->net->features);
+	check_warn_return(ret, "Failed to set checksum offload features");
 
 	smsc95xx_set_multicast(dev->net);
 
-	if (smsc95xx_phy_initialize(dev) < 0)
-		return -EIO;
+	ret = smsc95xx_phy_initialize(dev);
+	check_warn_return(ret, "Failed to init PHY");
 
 	ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to read INT_EP_CTL: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to read INT_EP_CTL: %d\n", ret);
 
 	/* enable PHY interrupts */
 	read_buf |= INT_EP_CTL_PHY_INT_;
 
 	ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "Failed to write INT_EP_CTL: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "Failed to write INT_EP_CTL: %d\n", ret);
 
-	smsc95xx_start_tx_path(dev);
-	smsc95xx_start_rx_path(dev);
+	ret = smsc95xx_start_tx_path(dev);
+	check_warn_return(ret, "Failed to start TX path");
+
+	ret = smsc95xx_start_rx_path(dev);
+	check_warn_return(ret, "Failed to start RX path");
 
 	netif_dbg(dev, ifup, dev->net, "smsc95xx_reset, return 0\n");
 	return 0;
@@ -1017,10 +1022,7 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
 	printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
 
 	ret = usbnet_get_endpoints(dev, intf);
-	if (ret < 0) {
-		netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret);
-		return ret;
-	}
+	check_warn_return(ret, "usbnet_get_endpoints failed: %d\n", ret);
 
 	dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc95xx_priv),
 		GFP_KERNEL);
@@ -1064,6 +1066,153 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
 	}
 }
 
+static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct usbnet *dev = usb_get_intfdata(intf);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	int ret;
+	u32 val;
+
+	ret = usbnet_suspend(intf, message);
+	check_warn_return(ret, "usbnet_suspend error");
+
+	/* if no wol options set, enter lowest power SUSPEND2 mode */
+	if (!(pdata->wolopts & SUPPORTED_WAKE)) {
+		netdev_info(dev->net, "entering SUSPEND2 mode");
+
+		/* disable energy detect (link up) & wake up events */
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
+		check_warn_return(ret, "Error reading WUCSR");
+
+		val &= ~(WUCSR_MPEN_ | WUCSR_WAKE_EN_);
+
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
+		check_warn_return(ret, "Error writing WUCSR");
+
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
+		check_warn_return(ret, "Error reading PM_CTRL");
+
+		val &= ~(PM_CTL_ED_EN_ | PM_CTL_WOL_EN_);
+
+		ret = smsc95xx_write_reg(dev, PM_CTRL, val);
+		check_warn_return(ret, "Error writing PM_CTRL");
+
+		/* enter suspend2 mode */
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
+		check_warn_return(ret, "Error reading PM_CTRL");
+
+		val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
+		val |= PM_CTL_SUS_MODE_2;
+
+		ret = smsc95xx_write_reg(dev, PM_CTRL, val);
+		check_warn_return(ret, "Error writing PM_CTRL");
+
+		return 0;
+	}
+
+	if (pdata->wolopts & WAKE_MAGIC) {
+		/* clear any pending magic packet status */
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
+		check_warn_return(ret, "Error reading WUCSR");
+
+		val |= WUCSR_MPR_;
+
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
+		check_warn_return(ret, "Error writing WUCSR");
+	}
+
+	/* enable/disable magic packup wake */
+	ret = smsc95xx_read_reg(dev, WUCSR, &val);
+	check_warn_return(ret, "Error reading WUCSR");
+
+	if (pdata->wolopts & WAKE_MAGIC) {
+		netdev_info(dev->net, "enabling magic packet wakeup");
+		val |= WUCSR_MPEN_;
+	} else {
+		netdev_info(dev->net, "disabling magic packet wakeup");
+		val &= ~WUCSR_MPEN_;
+	}
+
+	ret = smsc95xx_write_reg(dev, WUCSR, val);
+	check_warn_return(ret, "Error writing WUCSR");
+
+	/* enable wol wakeup source */
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
+	check_warn_return(ret, "Error reading PM_CTRL");
+
+	val |= PM_CTL_WOL_EN_;
+
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
+	check_warn_return(ret, "Error writing PM_CTRL");
+
+	/* enable receiver */
+	smsc95xx_start_rx_path(dev);
+
+	/* some wol options are enabled, so enter SUSPEND0 */
+	netdev_info(dev->net, "entering SUSPEND0 mode");
+
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
+	check_warn_return(ret, "Error reading PM_CTRL");
+
+	val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_));
+	val |= PM_CTL_SUS_MODE_0;
+
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
+	check_warn_return(ret, "Error writing PM_CTRL");
+
+	/* clear wol status */
+	val &= ~PM_CTL_WUPS_;
+	val |= PM_CTL_WUPS_WOL_;
+	ret = smsc95xx_write_reg(dev, PM_CTRL, val);
+	check_warn_return(ret, "Error writing PM_CTRL");
+
+	/* read back PM_CTRL */
+	ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
+	check_warn_return(ret, "Error reading PM_CTRL");
+
+	smsc95xx_set_feature(dev, USB_DEVICE_REMOTE_WAKEUP);
+
+	return 0;
+}
+
+static int smsc95xx_resume(struct usb_interface *intf)
+{
+	struct usbnet *dev = usb_get_intfdata(intf);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	int ret;
+	u32 val;
+
+	BUG_ON(!dev);
+
+	if (pdata->wolopts & WAKE_MAGIC) {
+		smsc95xx_clear_feature(dev, USB_DEVICE_REMOTE_WAKEUP);
+
+		/* Disable magic packup wake */
+		ret = smsc95xx_read_reg(dev, WUCSR, &val);
+		check_warn_return(ret, "Error reading WUCSR");
+
+		val &= ~WUCSR_MPEN_;
+
+		ret = smsc95xx_write_reg(dev, WUCSR, val);
+		check_warn_return(ret, "Error writing WUCSR");
+
+		/* clear wake-up status */
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &val);
+		check_warn_return(ret, "Error reading PM_CTRL");
+
+		val &= ~PM_CTL_WOL_EN_;
+		val |= PM_CTL_WUPS_;
+
+		ret = smsc95xx_write_reg(dev, PM_CTRL, val);
+		check_warn_return(ret, "Error writing PM_CTRL");
+	}
+
+	return usbnet_resume(intf);
+	check_warn_return(ret, "usbnet_resume error");
+
+	return 0;
+}
+
 static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
 {
 	skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
@@ -1326,8 +1475,9 @@ static struct usb_driver smsc95xx_driver = {
 	.name		= "smsc95xx",
 	.id_table	= products,
 	.probe		= usbnet_probe,
-	.suspend	= usbnet_suspend,
-	.resume		= usbnet_resume,
+	.suspend	= smsc95xx_suspend,
+	.resume		= smsc95xx_resume,
+	.reset_resume	= smsc95xx_resume,
 	.disconnect	= usbnet_disconnect,
 	.disable_hub_initiated_lpm = 1,
 };
diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h
index 86bc44977fb..2ff9815aa27 100644
--- a/drivers/net/usb/smsc95xx.h
+++ b/drivers/net/usb/smsc95xx.h
@@ -63,6 +63,7 @@
 #define INT_STS_TDFO_			(0x00001000)
 #define INT_STS_RXDF_			(0x00000800)
 #define INT_STS_GPIOS_			(0x000007FF)
+#define INT_STS_CLEAR_ALL_		(0xFFFFFFFF)
 
 #define RX_CFG				(0x0C)
 #define RX_FIFO_FLUSH_			(0x00000001)
@@ -83,12 +84,16 @@
 #define HW_CFG_BCE_			(0x00000002)
 #define HW_CFG_SRST_			(0x00000001)
 
+#define RX_FIFO_INF			(0x18)
+
 #define PM_CTRL				(0x20)
+#define PM_CTL_RES_CLR_WKP_STS		(0x00000200)
 #define PM_CTL_DEV_RDY_			(0x00000080)
 #define PM_CTL_SUS_MODE_		(0x00000060)
 #define PM_CTL_SUS_MODE_0		(0x00000000)
 #define PM_CTL_SUS_MODE_1		(0x00000020)
-#define PM_CTL_SUS_MODE_2		(0x00000060)
+#define PM_CTL_SUS_MODE_2		(0x00000040)
+#define PM_CTL_SUS_MODE_3		(0x00000060)
 #define PM_CTL_PHY_RST_			(0x00000010)
 #define PM_CTL_WOL_EN_			(0x00000008)
 #define PM_CTL_ED_EN_			(0x00000004)
@@ -200,6 +205,11 @@
 #define WUFF				(0x128)
 
 #define WUCSR				(0x12C)
+#define WUCSR_GUE_			(0x00000200)
+#define WUCSR_WUFR_			(0x00000040)
+#define WUCSR_MPR_			(0x00000020)
+#define WUCSR_WAKE_EN_			(0x00000004)
+#define WUCSR_MPEN_			(0x00000002)
 
 #define COE_CR				(0x130)
 #define Tx_COE_EN_			(0x00010000)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 8531c1caac2..fc9f578a1e2 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1201,19 +1201,26 @@ deferred:
 }
 EXPORT_SYMBOL_GPL(usbnet_start_xmit);
 
-static void rx_alloc_submit(struct usbnet *dev, gfp_t flags)
+static int rx_alloc_submit(struct usbnet *dev, gfp_t flags)
 {
 	struct urb	*urb;
 	int		i;
+	int		ret = 0;
 
 	/* don't refill the queue all at once */
 	for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) {
 		urb = usb_alloc_urb(0, flags);
 		if (urb != NULL) {
-			if (rx_submit(dev, urb, flags) == -ENOLINK)
-				return;
+			ret = rx_submit(dev, urb, flags);
+			if (ret)
+				goto err;
+		} else {
+			ret = -ENOMEM;
+			goto err;
 		}
 	}
+err:
+	return ret;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -1257,7 +1264,8 @@ static void usbnet_bh (unsigned long param)
 		int	temp = dev->rxq.qlen;
 
 		if (temp < RX_QLEN(dev)) {
-			rx_alloc_submit(dev, GFP_ATOMIC);
+			if (rx_alloc_submit(dev, GFP_ATOMIC) == -ENOLINK)
+				return;
 			if (temp != dev->rxq.qlen)
 				netif_dbg(dev, link, dev->net,
 					  "rxqlen %d --> %d\n",
@@ -1573,7 +1581,7 @@ int usbnet_resume (struct usb_interface *intf)
 				netif_device_present(dev->net) &&
 				!timer_pending(&dev->delay) &&
 				!test_bit(EVENT_RX_HALT, &dev->flags))
-					rx_alloc_submit(dev, GFP_KERNEL);
+					rx_alloc_submit(dev, GFP_NOIO);
 
 			if (!(dev->txq.qlen >= TX_QLEN(dev)))
 				netif_tx_wake_all_queues(dev->net);
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 5852361032c..e522ff70444 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -348,6 +348,9 @@ static int veth_newlink(struct net *src_net, struct net_device *dev,
 	if (tbp[IFLA_ADDRESS] == NULL)
 		eth_hw_addr_random(peer);
 
+	if (ifmp && (dev->ifindex != 0))
+		peer->ifindex = ifmp->ifi_index;
+
 	err = register_netdevice(peer);
 	put_net(net);
 	net = NULL;
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 83d2b0c34c5..cbf8b062535 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -521,7 +521,7 @@ static void refill_work(struct work_struct *work)
 	/* In theory, this can happen: if we don't get any buffers in
 	 * we will *never* try to fill again. */
 	if (still_empty)
-		queue_delayed_work(system_nrt_wq, &vi->refill, HZ/2);
+		schedule_delayed_work(&vi->refill, HZ/2);
 }
 
 static int virtnet_poll(struct napi_struct *napi, int budget)
@@ -540,7 +540,7 @@ again:
 
 	if (vi->num < vi->max / 2) {
 		if (!try_fill_recv(vi, GFP_ATOMIC))
-			queue_delayed_work(system_nrt_wq, &vi->refill, 0);
+			schedule_delayed_work(&vi->refill, 0);
 	}
 
 	/* Out of packets? */
@@ -745,7 +745,7 @@ static int virtnet_open(struct net_device *dev)
 
 	/* Make sure we have some buffers: if oom use wq. */
 	if (!try_fill_recv(vi, GFP_KERNEL))
-		queue_delayed_work(system_nrt_wq, &vi->refill, 0);
+		schedule_delayed_work(&vi->refill, 0);
 
 	virtnet_napi_enable(vi);
 	return 0;
@@ -993,7 +993,7 @@ static void virtnet_config_changed_work(struct work_struct *work)
 		goto done;
 
 	if (v & VIRTIO_NET_S_ANNOUNCE) {
-		netif_notify_peers(vi->dev);
+		netdev_notify_peers(vi->dev);
 		virtnet_ack_link_announce(vi);
 	}
 
@@ -1020,7 +1020,7 @@ static void virtnet_config_changed(struct virtio_device *vdev)
 {
 	struct virtnet_info *vi = vdev->priv;
 
-	queue_work(system_nrt_wq, &vi->config_work);
+	schedule_work(&vi->config_work);
 }
 
 static int init_vqs(struct virtnet_info *vi)
@@ -1152,7 +1152,7 @@ static int virtnet_probe(struct virtio_device *vdev)
 	   otherwise get link status from config. */
 	if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS)) {
 		netif_carrier_off(dev);
-		queue_work(system_nrt_wq, &vi->config_work);
+		schedule_work(&vi->config_work);
 	} else {
 		vi->status = VIRTIO_NET_S_LINK_UP;
 		netif_carrier_on(dev);
@@ -1264,7 +1264,7 @@ static int virtnet_restore(struct virtio_device *vdev)
 	netif_device_attach(vi->dev);
 
 	if (!try_fill_recv(vi, GFP_KERNEL))
-		queue_delayed_work(system_nrt_wq, &vi->refill, 0);
+		schedule_delayed_work(&vi->refill, 0);
 
 	mutex_lock(&vi->config_lock);
 	vi->config_enable = true;
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 93e0cfb739b..ce9d4f2c977 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3019,6 +3019,7 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	netdev->watchdog_timeo = 5 * HZ;
 
 	INIT_WORK(&adapter->work, vmxnet3_reset_work);
+	set_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state);
 
 	if (adapter->intr.type == VMXNET3_IT_MSIX) {
 		int i;
@@ -3043,7 +3044,6 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 		goto err_register;
 	}
 
-	set_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state);
 	vmxnet3_check_link(adapter, false);
 	atomic_inc(&devices_found);
 	return 0;
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
new file mode 100644
index 00000000000..51de9edb55f
--- /dev/null
+++ b/drivers/net/vxlan.c
@@ -0,0 +1,1219 @@
+/*
+ * VXLAN: Virtual eXtensiable Local Area Network
+ *
+ * Copyright (c) 2012 Vyatta Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * TODO
+ *  - use IANA UDP port number (when defined)
+ *  - IPv6 (not in RFC)
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/rculist.h>
+#include <linux/netdevice.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <linux/igmp.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/version.h>
+#include <linux/hash.h>
+#include <net/ip.h>
+#include <net/icmp.h>
+#include <net/udp.h>
+#include <net/rtnetlink.h>
+#include <net/route.h>
+#include <net/dsfield.h>
+#include <net/inet_ecn.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+
+#define VXLAN_VERSION	"0.1"
+
+#define VNI_HASH_BITS	10
+#define VNI_HASH_SIZE	(1<<VNI_HASH_BITS)
+#define FDB_HASH_BITS	8
+#define FDB_HASH_SIZE	(1<<FDB_HASH_BITS)
+#define FDB_AGE_DEFAULT 300 /* 5 min */
+#define FDB_AGE_INTERVAL (10 * HZ)	/* rescan interval */
+
+#define VXLAN_N_VID	(1u << 24)
+#define VXLAN_VID_MASK	(VXLAN_N_VID - 1)
+/* VLAN + IP header + UDP + VXLAN */
+#define VXLAN_HEADROOM (4 + 20 + 8 + 8)
+
+#define VXLAN_FLAGS 0x08000000	/* struct vxlanhdr.vx_flags required value. */
+
+/* VXLAN protocol header */
+struct vxlanhdr {
+	__be32 vx_flags;
+	__be32 vx_vni;
+};
+
+/* UDP port for VXLAN traffic. */
+static unsigned int vxlan_port __read_mostly = 8472;
+module_param_named(udp_port, vxlan_port, uint, 0444);
+MODULE_PARM_DESC(udp_port, "Destination UDP port");
+
+static bool log_ecn_error = true;
+module_param(log_ecn_error, bool, 0644);
+MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
+
+/* per-net private data for this module */
+static unsigned int vxlan_net_id;
+struct vxlan_net {
+	struct socket	  *sock;	/* UDP encap socket */
+	struct hlist_head vni_list[VNI_HASH_SIZE];
+};
+
+/* Forwarding table entry */
+struct vxlan_fdb {
+	struct hlist_node hlist;	/* linked list of entries */
+	struct rcu_head	  rcu;
+	unsigned long	  updated;	/* jiffies */
+	unsigned long	  used;
+	__be32		  remote_ip;
+	u16		  state;	/* see ndm_state */
+	u8		  eth_addr[ETH_ALEN];
+};
+
+/* Per-cpu network traffic stats */
+struct vxlan_stats {
+	u64			rx_packets;
+	u64			rx_bytes;
+	u64			tx_packets;
+	u64			tx_bytes;
+	struct u64_stats_sync	syncp;
+};
+
+/* Pseudo network device */
+struct vxlan_dev {
+	struct hlist_node hlist;
+	struct net_device *dev;
+	struct vxlan_stats __percpu *stats;
+	__u32		  vni;		/* virtual network id */
+	__be32	          gaddr;	/* multicast group */
+	__be32		  saddr;	/* source address */
+	unsigned int      link;		/* link to multicast over */
+	__u8		  tos;		/* TOS override */
+	__u8		  ttl;
+	bool		  learn;
+
+	unsigned long	  age_interval;
+	struct timer_list age_timer;
+	spinlock_t	  hash_lock;
+	unsigned int	  addrcnt;
+	unsigned int	  addrmax;
+	unsigned int	  addrexceeded;
+
+	struct hlist_head fdb_head[FDB_HASH_SIZE];
+};
+
+/* salt for hash table */
+static u32 vxlan_salt __read_mostly;
+
+static inline struct hlist_head *vni_head(struct net *net, u32 id)
+{
+	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
+
+	return &vn->vni_list[hash_32(id, VNI_HASH_BITS)];
+}
+
+/* Look up VNI in a per net namespace table */
+static struct vxlan_dev *vxlan_find_vni(struct net *net, u32 id)
+{
+	struct vxlan_dev *vxlan;
+	struct hlist_node *node;
+
+	hlist_for_each_entry_rcu(vxlan, node, vni_head(net, id), hlist) {
+		if (vxlan->vni == id)
+			return vxlan;
+	}
+
+	return NULL;
+}
+
+/* Fill in neighbour message in skbuff. */
+static int vxlan_fdb_info(struct sk_buff *skb, struct vxlan_dev *vxlan,
+			   const struct vxlan_fdb *fdb,
+			   u32 portid, u32 seq, int type, unsigned int flags)
+{
+	unsigned long now = jiffies;
+	struct nda_cacheinfo ci;
+	struct nlmsghdr *nlh;
+	struct ndmsg *ndm;
+
+	nlh = nlmsg_put(skb, portid, seq, type, sizeof(*ndm), flags);
+	if (nlh == NULL)
+		return -EMSGSIZE;
+
+	ndm = nlmsg_data(nlh);
+	memset(ndm, 0, sizeof(*ndm));
+	ndm->ndm_family	= AF_BRIDGE;
+	ndm->ndm_state = fdb->state;
+	ndm->ndm_ifindex = vxlan->dev->ifindex;
+	ndm->ndm_flags = NTF_SELF;
+	ndm->ndm_type = NDA_DST;
+
+	if (nla_put(skb, NDA_LLADDR, ETH_ALEN, &fdb->eth_addr))
+		goto nla_put_failure;
+
+	if (nla_put_be32(skb, NDA_DST, fdb->remote_ip))
+		goto nla_put_failure;
+
+	ci.ndm_used	 = jiffies_to_clock_t(now - fdb->used);
+	ci.ndm_confirmed = 0;
+	ci.ndm_updated	 = jiffies_to_clock_t(now - fdb->updated);
+	ci.ndm_refcnt	 = 0;
+
+	if (nla_put(skb, NDA_CACHEINFO, sizeof(ci), &ci))
+		goto nla_put_failure;
+
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
+}
+
+static inline size_t vxlan_nlmsg_size(void)
+{
+	return NLMSG_ALIGN(sizeof(struct ndmsg))
+		+ nla_total_size(ETH_ALEN) /* NDA_LLADDR */
+		+ nla_total_size(sizeof(__be32)) /* NDA_DST */
+		+ nla_total_size(sizeof(struct nda_cacheinfo));
+}
+
+static void vxlan_fdb_notify(struct vxlan_dev *vxlan,
+			     const struct vxlan_fdb *fdb, int type)
+{
+	struct net *net = dev_net(vxlan->dev);
+	struct sk_buff *skb;
+	int err = -ENOBUFS;
+
+	skb = nlmsg_new(vxlan_nlmsg_size(), GFP_ATOMIC);
+	if (skb == NULL)
+		goto errout;
+
+	err = vxlan_fdb_info(skb, vxlan, fdb, 0, 0, type, 0);
+	if (err < 0) {
+		/* -EMSGSIZE implies BUG in vxlan_nlmsg_size() */
+		WARN_ON(err == -EMSGSIZE);
+		kfree_skb(skb);
+		goto errout;
+	}
+
+	rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
+	return;
+errout:
+	if (err < 0)
+		rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
+}
+
+/* Hash Ethernet address */
+static u32 eth_hash(const unsigned char *addr)
+{
+	u64 value = get_unaligned((u64 *)addr);
+
+	/* only want 6 bytes */
+#ifdef __BIG_ENDIAN
+	value <<= 16;
+#else
+	value >>= 16;
+#endif
+	return hash_64(value, FDB_HASH_BITS);
+}
+
+/* Hash chain to use given mac address */
+static inline struct hlist_head *vxlan_fdb_head(struct vxlan_dev *vxlan,
+						const u8 *mac)
+{
+	return &vxlan->fdb_head[eth_hash(mac)];
+}
+
+/* Look up Ethernet address in forwarding table */
+static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
+					const u8 *mac)
+
+{
+	struct hlist_head *head = vxlan_fdb_head(vxlan, mac);
+	struct vxlan_fdb *f;
+	struct hlist_node *node;
+
+	hlist_for_each_entry_rcu(f, node, head, hlist) {
+		if (compare_ether_addr(mac, f->eth_addr) == 0)
+			return f;
+	}
+
+	return NULL;
+}
+
+/* Add new entry to forwarding table -- assumes lock held */
+static int vxlan_fdb_create(struct vxlan_dev *vxlan,
+			    const u8 *mac, __be32 ip,
+			    __u16 state, __u16 flags)
+{
+	struct vxlan_fdb *f;
+	int notify = 0;
+
+	f = vxlan_find_mac(vxlan, mac);
+	if (f) {
+		if (flags & NLM_F_EXCL) {
+			netdev_dbg(vxlan->dev,
+				   "lost race to create %pM\n", mac);
+			return -EEXIST;
+		}
+		if (f->state != state) {
+			f->state = state;
+			f->updated = jiffies;
+			notify = 1;
+		}
+	} else {
+		if (!(flags & NLM_F_CREATE))
+			return -ENOENT;
+
+		if (vxlan->addrmax && vxlan->addrcnt >= vxlan->addrmax)
+			return -ENOSPC;
+
+		netdev_dbg(vxlan->dev, "add %pM -> %pI4\n", mac, &ip);
+		f = kmalloc(sizeof(*f), GFP_ATOMIC);
+		if (!f)
+			return -ENOMEM;
+
+		notify = 1;
+		f->remote_ip = ip;
+		f->state = state;
+		f->updated = f->used = jiffies;
+		memcpy(f->eth_addr, mac, ETH_ALEN);
+
+		++vxlan->addrcnt;
+		hlist_add_head_rcu(&f->hlist,
+				   vxlan_fdb_head(vxlan, mac));
+	}
+
+	if (notify)
+		vxlan_fdb_notify(vxlan, f, RTM_NEWNEIGH);
+
+	return 0;
+}
+
+static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f)
+{
+	netdev_dbg(vxlan->dev,
+		    "delete %pM\n", f->eth_addr);
+
+	--vxlan->addrcnt;
+	vxlan_fdb_notify(vxlan, f, RTM_DELNEIGH);
+
+	hlist_del_rcu(&f->hlist);
+	kfree_rcu(f, rcu);
+}
+
+/* Add static entry (via netlink) */
+static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+			 struct net_device *dev,
+			 const unsigned char *addr, u16 flags)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	__be32 ip;
+	int err;
+
+	if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_REACHABLE))) {
+		pr_info("RTM_NEWNEIGH with invalid state %#x\n",
+			ndm->ndm_state);
+		return -EINVAL;
+	}
+
+	if (tb[NDA_DST] == NULL)
+		return -EINVAL;
+
+	if (nla_len(tb[NDA_DST]) != sizeof(__be32))
+		return -EAFNOSUPPORT;
+
+	ip = nla_get_be32(tb[NDA_DST]);
+
+	spin_lock_bh(&vxlan->hash_lock);
+	err = vxlan_fdb_create(vxlan, addr, ip, ndm->ndm_state, flags);
+	spin_unlock_bh(&vxlan->hash_lock);
+
+	return err;
+}
+
+/* Delete entry (via netlink) */
+static int vxlan_fdb_delete(struct ndmsg *ndm, struct net_device *dev,
+			    const unsigned char *addr)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_fdb *f;
+	int err = -ENOENT;
+
+	spin_lock_bh(&vxlan->hash_lock);
+	f = vxlan_find_mac(vxlan, addr);
+	if (f) {
+		vxlan_fdb_destroy(vxlan, f);
+		err = 0;
+	}
+	spin_unlock_bh(&vxlan->hash_lock);
+
+	return err;
+}
+
+/* Dump forwarding table */
+static int vxlan_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
+			  struct net_device *dev, int idx)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	unsigned int h;
+
+	for (h = 0; h < FDB_HASH_SIZE; ++h) {
+		struct vxlan_fdb *f;
+		struct hlist_node *n;
+		int err;
+
+		hlist_for_each_entry_rcu(f, n, &vxlan->fdb_head[h], hlist) {
+			if (idx < cb->args[0])
+				goto skip;
+
+			err = vxlan_fdb_info(skb, vxlan, f,
+					     NETLINK_CB(cb->skb).portid,
+					     cb->nlh->nlmsg_seq,
+					     RTM_NEWNEIGH,
+					     NLM_F_MULTI);
+			if (err < 0)
+				break;
+skip:
+			++idx;
+		}
+	}
+
+	return idx;
+}
+
+/* Watch incoming packets to learn mapping between Ethernet address
+ * and Tunnel endpoint.
+ */
+static void vxlan_snoop(struct net_device *dev,
+			__be32 src_ip, const u8 *src_mac)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_fdb *f;
+	int err;
+
+	f = vxlan_find_mac(vxlan, src_mac);
+	if (likely(f)) {
+		f->used = jiffies;
+		if (likely(f->remote_ip == src_ip))
+			return;
+
+		if (net_ratelimit())
+			netdev_info(dev,
+				    "%pM migrated from %pI4 to %pI4\n",
+				    src_mac, &f->remote_ip, &src_ip);
+
+		f->remote_ip = src_ip;
+		f->updated = jiffies;
+	} else {
+		/* learned new entry */
+		spin_lock(&vxlan->hash_lock);
+		err = vxlan_fdb_create(vxlan, src_mac, src_ip,
+				       NUD_REACHABLE,
+				       NLM_F_EXCL|NLM_F_CREATE);
+		spin_unlock(&vxlan->hash_lock);
+	}
+}
+
+
+/* See if multicast group is already in use by other ID */
+static bool vxlan_group_used(struct vxlan_net *vn,
+			     const struct vxlan_dev *this)
+{
+	const struct vxlan_dev *vxlan;
+	struct hlist_node *node;
+	unsigned h;
+
+	for (h = 0; h < VNI_HASH_SIZE; ++h)
+		hlist_for_each_entry(vxlan, node, &vn->vni_list[h], hlist) {
+			if (vxlan == this)
+				continue;
+
+			if (!netif_running(vxlan->dev))
+				continue;
+
+			if (vxlan->gaddr == this->gaddr)
+				return true;
+		}
+
+	return false;
+}
+
+/* kernel equivalent to IP_ADD_MEMBERSHIP */
+static int vxlan_join_group(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
+	struct sock *sk = vn->sock->sk;
+	struct ip_mreqn mreq = {
+		.imr_multiaddr.s_addr = vxlan->gaddr,
+	};
+	int err;
+
+	/* Already a member of group */
+	if (vxlan_group_used(vn, vxlan))
+		return 0;
+
+	/* Need to drop RTNL to call multicast join */
+	rtnl_unlock();
+	lock_sock(sk);
+	err = ip_mc_join_group(sk, &mreq);
+	release_sock(sk);
+	rtnl_lock();
+
+	return err;
+}
+
+
+/* kernel equivalent to IP_DROP_MEMBERSHIP */
+static int vxlan_leave_group(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
+	int err = 0;
+	struct sock *sk = vn->sock->sk;
+	struct ip_mreqn mreq = {
+		.imr_multiaddr.s_addr = vxlan->gaddr,
+	};
+
+	/* Only leave group when last vxlan is done. */
+	if (vxlan_group_used(vn, vxlan))
+		return 0;
+
+	/* Need to drop RTNL to call multicast leave */
+	rtnl_unlock();
+	lock_sock(sk);
+	err = ip_mc_leave_group(sk, &mreq);
+	release_sock(sk);
+	rtnl_lock();
+
+	return err;
+}
+
+/* Callback from net/ipv4/udp.c to receive packets */
+static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
+{
+	struct iphdr *oip;
+	struct vxlanhdr *vxh;
+	struct vxlan_dev *vxlan;
+	struct vxlan_stats *stats;
+	__u32 vni;
+	int err;
+
+	/* pop off outer UDP header */
+	__skb_pull(skb, sizeof(struct udphdr));
+
+	/* Need Vxlan and inner Ethernet header to be present */
+	if (!pskb_may_pull(skb, sizeof(struct vxlanhdr)))
+		goto error;
+
+	/* Drop packets with reserved bits set */
+	vxh = (struct vxlanhdr *) skb->data;
+	if (vxh->vx_flags != htonl(VXLAN_FLAGS) ||
+	    (vxh->vx_vni & htonl(0xff))) {
+		netdev_dbg(skb->dev, "invalid vxlan flags=%#x vni=%#x\n",
+			   ntohl(vxh->vx_flags), ntohl(vxh->vx_vni));
+		goto error;
+	}
+
+	__skb_pull(skb, sizeof(struct vxlanhdr));
+	skb_postpull_rcsum(skb, eth_hdr(skb), sizeof(struct vxlanhdr));
+
+	/* Is this VNI defined? */
+	vni = ntohl(vxh->vx_vni) >> 8;
+	vxlan = vxlan_find_vni(sock_net(sk), vni);
+	if (!vxlan) {
+		netdev_dbg(skb->dev, "unknown vni %d\n", vni);
+		goto drop;
+	}
+
+	if (!pskb_may_pull(skb, ETH_HLEN)) {
+		vxlan->dev->stats.rx_length_errors++;
+		vxlan->dev->stats.rx_errors++;
+		goto drop;
+	}
+
+	/* Re-examine inner Ethernet packet */
+	oip = ip_hdr(skb);
+	skb->protocol = eth_type_trans(skb, vxlan->dev);
+	skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
+
+	/* Ignore packet loops (and multicast echo) */
+	if (compare_ether_addr(eth_hdr(skb)->h_source,
+			       vxlan->dev->dev_addr) == 0)
+		goto drop;
+
+	if (vxlan->learn)
+		vxlan_snoop(skb->dev, oip->saddr, eth_hdr(skb)->h_source);
+
+	__skb_tunnel_rx(skb, vxlan->dev);
+	skb_reset_network_header(skb);
+
+	err = IP_ECN_decapsulate(oip, skb);
+	if (unlikely(err)) {
+		if (log_ecn_error)
+			net_info_ratelimited("non-ECT from %pI4 with TOS=%#x\n",
+					     &oip->saddr, oip->tos);
+		if (err > 1) {
+			++vxlan->dev->stats.rx_frame_errors;
+			++vxlan->dev->stats.rx_errors;
+			goto drop;
+		}
+	}
+
+	stats = this_cpu_ptr(vxlan->stats);
+	u64_stats_update_begin(&stats->syncp);
+	stats->rx_packets++;
+	stats->rx_bytes += skb->len;
+	u64_stats_update_end(&stats->syncp);
+
+	netif_rx(skb);
+
+	return 0;
+error:
+	/* Put UDP header back */
+	__skb_push(skb, sizeof(struct udphdr));
+
+	return 1;
+drop:
+	/* Consume bad packet */
+	kfree_skb(skb);
+	return 0;
+}
+
+/* Extract dsfield from inner protocol */
+static inline u8 vxlan_get_dsfield(const struct iphdr *iph,
+				   const struct sk_buff *skb)
+{
+	if (skb->protocol == htons(ETH_P_IP))
+		return iph->tos;
+	else if (skb->protocol == htons(ETH_P_IPV6))
+		return ipv6_get_dsfield((const struct ipv6hdr *)iph);
+	else
+		return 0;
+}
+
+/* Propogate ECN bits out */
+static inline u8 vxlan_ecn_encap(u8 tos,
+				 const struct iphdr *iph,
+				 const struct sk_buff *skb)
+{
+	u8 inner = vxlan_get_dsfield(iph, skb);
+
+	return INET_ECN_encapsulate(tos, inner);
+}
+
+/* Transmit local packets over Vxlan
+ *
+ * Outer IP header inherits ECN and DF from inner header.
+ * Outer UDP destination is the VXLAN assigned port.
+ *           source port is based on hash of flow if available
+ *                       otherwise use a random value
+ */
+static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct rtable *rt;
+	const struct ethhdr *eth;
+	const struct iphdr *old_iph;
+	struct iphdr *iph;
+	struct vxlanhdr *vxh;
+	struct udphdr *uh;
+	struct flowi4 fl4;
+	struct vxlan_fdb *f;
+	unsigned int pkt_len = skb->len;
+	u32 hash;
+	__be32 dst;
+	__be16 df = 0;
+	__u8 tos, ttl;
+	int err;
+
+	/* Need space for new headers (invalidates iph ptr) */
+	if (skb_cow_head(skb, VXLAN_HEADROOM))
+		goto drop;
+
+	eth = (void *)skb->data;
+	old_iph = ip_hdr(skb);
+
+	if (!is_multicast_ether_addr(eth->h_dest) &&
+	    (f = vxlan_find_mac(vxlan, eth->h_dest)))
+		dst = f->remote_ip;
+	else if (vxlan->gaddr) {
+		dst = vxlan->gaddr;
+	} else
+		goto drop;
+
+	ttl = vxlan->ttl;
+	if (!ttl && IN_MULTICAST(ntohl(dst)))
+		ttl = 1;
+
+	tos = vxlan->tos;
+	if (tos == 1)
+		tos = vxlan_get_dsfield(old_iph, skb);
+
+	hash = skb_get_rxhash(skb);
+
+	rt = ip_route_output_gre(dev_net(dev), &fl4, dst,
+				 vxlan->saddr, vxlan->vni,
+				 RT_TOS(tos), vxlan->link);
+	if (IS_ERR(rt)) {
+		netdev_dbg(dev, "no route to %pI4\n", &dst);
+		dev->stats.tx_carrier_errors++;
+		goto tx_error;
+	}
+
+	if (rt->dst.dev == dev) {
+		netdev_dbg(dev, "circular route to %pI4\n", &dst);
+		ip_rt_put(rt);
+		dev->stats.collisions++;
+		goto tx_error;
+	}
+
+	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
+	IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
+			      IPSKB_REROUTED);
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->dst);
+
+	vxh = (struct vxlanhdr *) __skb_push(skb, sizeof(*vxh));
+	vxh->vx_flags = htonl(VXLAN_FLAGS);
+	vxh->vx_vni = htonl(vxlan->vni << 8);
+
+	__skb_push(skb, sizeof(*uh));
+	skb_reset_transport_header(skb);
+	uh = udp_hdr(skb);
+
+	uh->dest = htons(vxlan_port);
+	uh->source = hash ? :random32();
+
+	uh->len = htons(skb->len);
+	uh->check = 0;
+
+	__skb_push(skb, sizeof(*iph));
+	skb_reset_network_header(skb);
+	iph		= ip_hdr(skb);
+	iph->version	= 4;
+	iph->ihl	= sizeof(struct iphdr) >> 2;
+	iph->frag_off	= df;
+	iph->protocol	= IPPROTO_UDP;
+	iph->tos	= vxlan_ecn_encap(tos, old_iph, skb);
+	iph->daddr	= fl4.daddr;
+	iph->saddr	= fl4.saddr;
+	iph->ttl	= ttl ? : ip4_dst_hoplimit(&rt->dst);
+
+	/* See __IPTUNNEL_XMIT */
+	skb->ip_summed = CHECKSUM_NONE;
+	ip_select_ident(iph, &rt->dst, NULL);
+
+	err = ip_local_out(skb);
+	if (likely(net_xmit_eval(err) == 0)) {
+		struct vxlan_stats *stats = this_cpu_ptr(vxlan->stats);
+
+		u64_stats_update_begin(&stats->syncp);
+		stats->tx_packets++;
+		stats->tx_bytes += pkt_len;
+		u64_stats_update_end(&stats->syncp);
+	} else {
+		dev->stats.tx_errors++;
+		dev->stats.tx_aborted_errors++;
+	}
+	return NETDEV_TX_OK;
+
+drop:
+	dev->stats.tx_dropped++;
+	goto tx_free;
+
+tx_error:
+	dev->stats.tx_errors++;
+tx_free:
+	dev_kfree_skb(skb);
+	return NETDEV_TX_OK;
+}
+
+/* Walk the forwarding table and purge stale entries */
+static void vxlan_cleanup(unsigned long arg)
+{
+	struct vxlan_dev *vxlan = (struct vxlan_dev *) arg;
+	unsigned long next_timer = jiffies + FDB_AGE_INTERVAL;
+	unsigned int h;
+
+	if (!netif_running(vxlan->dev))
+		return;
+
+	spin_lock_bh(&vxlan->hash_lock);
+	for (h = 0; h < FDB_HASH_SIZE; ++h) {
+		struct hlist_node *p, *n;
+		hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) {
+			struct vxlan_fdb *f
+				= container_of(p, struct vxlan_fdb, hlist);
+			unsigned long timeout;
+
+			if (f->state == NUD_PERMANENT)
+				continue;
+
+			timeout = f->used + vxlan->age_interval * HZ;
+			if (time_before_eq(timeout, jiffies)) {
+				netdev_dbg(vxlan->dev,
+					   "garbage collect %pM\n",
+					   f->eth_addr);
+				f->state = NUD_STALE;
+				vxlan_fdb_destroy(vxlan, f);
+			} else if (time_before(timeout, next_timer))
+				next_timer = timeout;
+		}
+	}
+	spin_unlock_bh(&vxlan->hash_lock);
+
+	mod_timer(&vxlan->age_timer, next_timer);
+}
+
+/* Setup stats when device is created */
+static int vxlan_init(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+
+	vxlan->stats = alloc_percpu(struct vxlan_stats);
+	if (!vxlan->stats)
+		return -ENOMEM;
+
+	return 0;
+}
+
+/* Start ageing timer and join group when device is brought up */
+static int vxlan_open(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	int err;
+
+	if (vxlan->gaddr) {
+		err = vxlan_join_group(dev);
+		if (err)
+			return err;
+	}
+
+	if (vxlan->age_interval)
+		mod_timer(&vxlan->age_timer, jiffies + FDB_AGE_INTERVAL);
+
+	return 0;
+}
+
+/* Purge the forwarding table */
+static void vxlan_flush(struct vxlan_dev *vxlan)
+{
+	unsigned h;
+
+	spin_lock_bh(&vxlan->hash_lock);
+	for (h = 0; h < FDB_HASH_SIZE; ++h) {
+		struct hlist_node *p, *n;
+		hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) {
+			struct vxlan_fdb *f
+				= container_of(p, struct vxlan_fdb, hlist);
+			vxlan_fdb_destroy(vxlan, f);
+		}
+	}
+	spin_unlock_bh(&vxlan->hash_lock);
+}
+
+/* Cleanup timer and forwarding table on shutdown */
+static int vxlan_stop(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+
+	if (vxlan->gaddr)
+		vxlan_leave_group(dev);
+
+	del_timer_sync(&vxlan->age_timer);
+
+	vxlan_flush(vxlan);
+
+	return 0;
+}
+
+/* Merge per-cpu statistics */
+static struct rtnl_link_stats64 *vxlan_stats64(struct net_device *dev,
+					       struct rtnl_link_stats64 *stats)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_stats tmp, sum = { 0 };
+	unsigned int cpu;
+
+	for_each_possible_cpu(cpu) {
+		unsigned int start;
+		const struct vxlan_stats *stats
+			= per_cpu_ptr(vxlan->stats, cpu);
+
+		do {
+			start = u64_stats_fetch_begin_bh(&stats->syncp);
+			memcpy(&tmp, stats, sizeof(tmp));
+		} while (u64_stats_fetch_retry_bh(&stats->syncp, start));
+
+		sum.tx_bytes   += tmp.tx_bytes;
+		sum.tx_packets += tmp.tx_packets;
+		sum.rx_bytes   += tmp.rx_bytes;
+		sum.rx_packets += tmp.rx_packets;
+	}
+
+	stats->tx_bytes   = sum.tx_bytes;
+	stats->tx_packets = sum.tx_packets;
+	stats->rx_bytes   = sum.rx_bytes;
+	stats->rx_packets = sum.rx_packets;
+
+	stats->multicast = dev->stats.multicast;
+	stats->rx_length_errors = dev->stats.rx_length_errors;
+	stats->rx_frame_errors = dev->stats.rx_frame_errors;
+	stats->rx_errors = dev->stats.rx_errors;
+
+	stats->tx_dropped = dev->stats.tx_dropped;
+	stats->tx_carrier_errors  = dev->stats.tx_carrier_errors;
+	stats->tx_aborted_errors  = dev->stats.tx_aborted_errors;
+	stats->collisions  = dev->stats.collisions;
+	stats->tx_errors = dev->stats.tx_errors;
+
+	return stats;
+}
+
+/* Stub, nothing needs to be done. */
+static void vxlan_set_multicast_list(struct net_device *dev)
+{
+}
+
+static const struct net_device_ops vxlan_netdev_ops = {
+	.ndo_init		= vxlan_init,
+	.ndo_open		= vxlan_open,
+	.ndo_stop		= vxlan_stop,
+	.ndo_start_xmit		= vxlan_xmit,
+	.ndo_get_stats64	= vxlan_stats64,
+	.ndo_set_rx_mode	= vxlan_set_multicast_list,
+	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_fdb_add		= vxlan_fdb_add,
+	.ndo_fdb_del		= vxlan_fdb_delete,
+	.ndo_fdb_dump		= vxlan_fdb_dump,
+};
+
+/* Info for udev, that this is a virtual tunnel endpoint */
+static struct device_type vxlan_type = {
+	.name = "vxlan",
+};
+
+static void vxlan_free(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+
+	free_percpu(vxlan->stats);
+	free_netdev(dev);
+}
+
+/* Initialize the device structure. */
+static void vxlan_setup(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	unsigned h;
+
+	eth_hw_addr_random(dev);
+	ether_setup(dev);
+
+	dev->netdev_ops = &vxlan_netdev_ops;
+	dev->destructor = vxlan_free;
+	SET_NETDEV_DEVTYPE(dev, &vxlan_type);
+
+	dev->tx_queue_len = 0;
+	dev->features	|= NETIF_F_LLTX;
+	dev->features	|= NETIF_F_NETNS_LOCAL;
+	dev->priv_flags	&= ~IFF_XMIT_DST_RELEASE;
+
+	spin_lock_init(&vxlan->hash_lock);
+
+	init_timer_deferrable(&vxlan->age_timer);
+	vxlan->age_timer.function = vxlan_cleanup;
+	vxlan->age_timer.data = (unsigned long) vxlan;
+
+	vxlan->dev = dev;
+
+	for (h = 0; h < FDB_HASH_SIZE; ++h)
+		INIT_HLIST_HEAD(&vxlan->fdb_head[h]);
+}
+
+static const struct nla_policy vxlan_policy[IFLA_VXLAN_MAX + 1] = {
+	[IFLA_VXLAN_ID]		= { .type = NLA_U32 },
+	[IFLA_VXLAN_GROUP]	= { .len = FIELD_SIZEOF(struct iphdr, daddr) },
+	[IFLA_VXLAN_LINK]	= { .type = NLA_U32 },
+	[IFLA_VXLAN_LOCAL]	= { .len = FIELD_SIZEOF(struct iphdr, saddr) },
+	[IFLA_VXLAN_TOS]	= { .type = NLA_U8 },
+	[IFLA_VXLAN_TTL]	= { .type = NLA_U8 },
+	[IFLA_VXLAN_LEARNING]	= { .type = NLA_U8 },
+	[IFLA_VXLAN_AGEING]	= { .type = NLA_U32 },
+	[IFLA_VXLAN_LIMIT]	= { .type = NLA_U32 },
+};
+
+static int vxlan_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+	if (tb[IFLA_ADDRESS]) {
+		if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) {
+			pr_debug("invalid link address (not ethernet)\n");
+			return -EINVAL;
+		}
+
+		if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) {
+			pr_debug("invalid all zero ethernet address\n");
+			return -EADDRNOTAVAIL;
+		}
+	}
+
+	if (!data)
+		return -EINVAL;
+
+	if (data[IFLA_VXLAN_ID]) {
+		__u32 id = nla_get_u32(data[IFLA_VXLAN_ID]);
+		if (id >= VXLAN_VID_MASK)
+			return -ERANGE;
+	}
+
+	if (data[IFLA_VXLAN_GROUP]) {
+		__be32 gaddr = nla_get_be32(data[IFLA_VXLAN_GROUP]);
+		if (!IN_MULTICAST(ntohl(gaddr))) {
+			pr_debug("group address is not IPv4 multicast\n");
+			return -EADDRNOTAVAIL;
+		}
+	}
+	return 0;
+}
+
+static int vxlan_newlink(struct net *net, struct net_device *dev,
+			 struct nlattr *tb[], struct nlattr *data[])
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	__u32 vni;
+	int err;
+
+	if (!data[IFLA_VXLAN_ID])
+		return -EINVAL;
+
+	vni = nla_get_u32(data[IFLA_VXLAN_ID]);
+	if (vxlan_find_vni(net, vni)) {
+		pr_info("duplicate VNI %u\n", vni);
+		return -EEXIST;
+	}
+	vxlan->vni = vni;
+
+	if (data[IFLA_VXLAN_GROUP])
+		vxlan->gaddr = nla_get_be32(data[IFLA_VXLAN_GROUP]);
+
+	if (data[IFLA_VXLAN_LOCAL])
+		vxlan->saddr = nla_get_be32(data[IFLA_VXLAN_LOCAL]);
+
+	if (data[IFLA_VXLAN_LINK]) {
+		vxlan->link = nla_get_u32(data[IFLA_VXLAN_LINK]);
+
+		if (!tb[IFLA_MTU]) {
+			struct net_device *lowerdev;
+			lowerdev = __dev_get_by_index(net, vxlan->link);
+			dev->mtu = lowerdev->mtu - VXLAN_HEADROOM;
+		}
+	}
+
+	if (data[IFLA_VXLAN_TOS])
+		vxlan->tos  = nla_get_u8(data[IFLA_VXLAN_TOS]);
+
+	if (!data[IFLA_VXLAN_LEARNING] || nla_get_u8(data[IFLA_VXLAN_LEARNING]))
+		vxlan->learn = true;
+
+	if (data[IFLA_VXLAN_AGEING])
+		vxlan->age_interval = nla_get_u32(data[IFLA_VXLAN_AGEING]);
+	else
+		vxlan->age_interval = FDB_AGE_DEFAULT;
+
+	if (data[IFLA_VXLAN_LIMIT])
+		vxlan->addrmax = nla_get_u32(data[IFLA_VXLAN_LIMIT]);
+
+	err = register_netdevice(dev);
+	if (!err)
+		hlist_add_head_rcu(&vxlan->hlist, vni_head(net, vxlan->vni));
+
+	return err;
+}
+
+static void vxlan_dellink(struct net_device *dev, struct list_head *head)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+
+	hlist_del_rcu(&vxlan->hlist);
+
+	unregister_netdevice_queue(dev, head);
+}
+
+static size_t vxlan_get_size(const struct net_device *dev)
+{
+
+	return nla_total_size(sizeof(__u32)) +	/* IFLA_VXLAN_ID */
+		nla_total_size(sizeof(__be32)) +/* IFLA_VXLAN_GROUP */
+		nla_total_size(sizeof(__u32)) +	/* IFLA_VXLAN_LINK */
+		nla_total_size(sizeof(__be32))+	/* IFLA_VXLAN_LOCAL */
+		nla_total_size(sizeof(__u8)) +	/* IFLA_VXLAN_TTL */
+		nla_total_size(sizeof(__u8)) +	/* IFLA_VXLAN_TOS */
+		nla_total_size(sizeof(__u8)) +	/* IFLA_VXLAN_LEARNING */
+		nla_total_size(sizeof(__u32)) +	/* IFLA_VXLAN_AGEING */
+		nla_total_size(sizeof(__u32)) +	/* IFLA_VXLAN_LIMIT */
+		0;
+}
+
+static int vxlan_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	const struct vxlan_dev *vxlan = netdev_priv(dev);
+
+	if (nla_put_u32(skb, IFLA_VXLAN_ID, vxlan->vni))
+		goto nla_put_failure;
+
+	if (vxlan->gaddr && nla_put_u32(skb, IFLA_VXLAN_GROUP, vxlan->gaddr))
+		goto nla_put_failure;
+
+	if (vxlan->link && nla_put_u32(skb, IFLA_VXLAN_LINK, vxlan->link))
+		goto nla_put_failure;
+
+	if (vxlan->saddr && nla_put_u32(skb, IFLA_VXLAN_LOCAL, vxlan->saddr))
+		goto nla_put_failure;
+
+	if (nla_put_u8(skb, IFLA_VXLAN_TTL, vxlan->ttl) ||
+	    nla_put_u8(skb, IFLA_VXLAN_TOS, vxlan->tos) ||
+	    nla_put_u8(skb, IFLA_VXLAN_LEARNING, vxlan->learn) ||
+	    nla_put_u32(skb, IFLA_VXLAN_AGEING, vxlan->age_interval) ||
+	    nla_put_u32(skb, IFLA_VXLAN_LIMIT, vxlan->addrmax))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
+	.kind		= "vxlan",
+	.maxtype	= IFLA_VXLAN_MAX,
+	.policy		= vxlan_policy,
+	.priv_size	= sizeof(struct vxlan_dev),
+	.setup		= vxlan_setup,
+	.validate	= vxlan_validate,
+	.newlink	= vxlan_newlink,
+	.dellink	= vxlan_dellink,
+	.get_size	= vxlan_get_size,
+	.fill_info	= vxlan_fill_info,
+};
+
+static __net_init int vxlan_init_net(struct net *net)
+{
+	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
+	struct sock *sk;
+	struct sockaddr_in vxlan_addr = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = htonl(INADDR_ANY),
+	};
+	int rc;
+	unsigned h;
+
+	/* Create UDP socket for encapsulation receive. */
+	rc = sock_create_kern(AF_INET, SOCK_DGRAM, IPPROTO_UDP, &vn->sock);
+	if (rc < 0) {
+		pr_debug("UDP socket create failed\n");
+		return rc;
+	}
+	/* Put in proper namespace */
+	sk = vn->sock->sk;
+	sk_change_net(sk, net);
+
+	vxlan_addr.sin_port = htons(vxlan_port);
+
+	rc = kernel_bind(vn->sock, (struct sockaddr *) &vxlan_addr,
+			 sizeof(vxlan_addr));
+	if (rc < 0) {
+		pr_debug("bind for UDP socket %pI4:%u (%d)\n",
+			 &vxlan_addr.sin_addr, ntohs(vxlan_addr.sin_port), rc);
+		sk_release_kernel(sk);
+		vn->sock = NULL;
+		return rc;
+	}
+
+	/* Disable multicast loopback */
+	inet_sk(sk)->mc_loop = 0;
+
+	/* Mark socket as an encapsulation socket. */
+	udp_sk(sk)->encap_type = 1;
+	udp_sk(sk)->encap_rcv = vxlan_udp_encap_recv;
+	udp_encap_enable();
+
+	for (h = 0; h < VNI_HASH_SIZE; ++h)
+		INIT_HLIST_HEAD(&vn->vni_list[h]);
+
+	return 0;
+}
+
+static __net_exit void vxlan_exit_net(struct net *net)
+{
+	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
+
+	if (vn->sock) {
+		sk_release_kernel(vn->sock->sk);
+		vn->sock = NULL;
+	}
+}
+
+static struct pernet_operations vxlan_net_ops = {
+	.init = vxlan_init_net,
+	.exit = vxlan_exit_net,
+	.id   = &vxlan_net_id,
+	.size = sizeof(struct vxlan_net),
+};
+
+static int __init vxlan_init_module(void)
+{
+	int rc;
+
+	get_random_bytes(&vxlan_salt, sizeof(vxlan_salt));
+
+	rc = register_pernet_device(&vxlan_net_ops);
+	if (rc)
+		goto out1;
+
+	rc = rtnl_link_register(&vxlan_link_ops);
+	if (rc)
+		goto out2;
+
+	return 0;
+
+out2:
+	unregister_pernet_device(&vxlan_net_ops);
+out1:
+	return rc;
+}
+module_init(vxlan_init_module);
+
+static void __exit vxlan_cleanup_module(void)
+{
+	rtnl_link_unregister(&vxlan_link_ops);
+	unregister_pernet_device(&vxlan_net_ops);
+}
+module_exit(vxlan_cleanup_module);
+
+MODULE_LICENSE("GPL");
+MODULE_VERSION(VXLAN_VERSION);
+MODULE_AUTHOR("Stephen Hemminger <shemminger@vyatta.com>");
+MODULE_ALIAS_RTNL_LINK("vxlan");
diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c
index 9eb6479306d..ef36cafd44b 100644
--- a/drivers/net/wan/dscc4.c
+++ b/drivers/net/wan/dscc4.c
@@ -774,14 +774,15 @@ static int __devinit dscc4_init_one(struct pci_dev *pdev,
 	}
 	/* Global interrupt queue */
 	writel((u32)(((IRQ_RING_SIZE >> 5) - 1) << 20), ioaddr + IQLENR1);
+
+	rc = -ENOMEM;
+
 	priv->iqcfg = (__le32 *) pci_alloc_consistent(pdev,
 		IRQ_RING_SIZE*sizeof(__le32), &priv->iqcfg_dma);
 	if (!priv->iqcfg)
 		goto err_free_irq_5;
 	writel(priv->iqcfg_dma, ioaddr + IQCFG);
 
-	rc = -ENOMEM;
-
 	/*
 	 * SCC 0-3 private rx/tx irq structures
 	 * IQRX/TXi needs to be set soon. Learned it the hard way...
diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index aaaca9aa229..3f575afd8cf 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -10,6 +10,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/module.h>
 #include <linux/bitops.h>
 #include <linux/cdev.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index 02542613275..9c34d2fccfa 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -222,7 +222,6 @@ int i2400m_check_mac_addr(struct i2400m *i2400m)
 	struct sk_buff *skb;
 	const struct i2400m_tlv_detailed_device_info *ddi;
 	struct net_device *net_dev = i2400m->wimax_dev.net_dev;
-	const unsigned char zeromac[ETH_ALEN] = { 0 };
 
 	d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
 	skb = i2400m_get_device_info(i2400m);
@@ -244,7 +243,7 @@ int i2400m_check_mac_addr(struct i2400m *i2400m)
 		 "to that of boot mode's\n");
 	dev_warn(dev, "device reports     %pM\n", ddi->mac_address);
 	dev_warn(dev, "boot mode reported %pM\n", net_dev->perm_addr);
-	if (!memcmp(zeromac, ddi->mac_address, sizeof(zeromac)))
+	if (is_zero_ether_addr(ddi->mac_address))
 		dev_err(dev, "device reports an invalid MAC address, "
 			"not updating\n");
 	else {
diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c
index 283237f6f07..def12b38cbf 100644
--- a/drivers/net/wimax/i2400m/fw.c
+++ b/drivers/net/wimax/i2400m/fw.c
@@ -326,8 +326,10 @@ int i2400m_barker_db_init(const char *_options)
 		unsigned barker;
 
 		options_orig = kstrdup(_options, GFP_KERNEL);
-		if (options_orig == NULL)
+		if (options_orig == NULL) {
+			result = -ENOMEM;
 			goto error_parse;
+		}
 		options = options_orig;
 
 		while ((token = strsep(&options, ",")) != NULL) {
diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c
index 689a71c1af7..154a4965be4 100644
--- a/drivers/net/wireless/adm8211.c
+++ b/drivers/net/wireless/adm8211.c
@@ -1661,7 +1661,9 @@ static void adm8211_tx_raw(struct ieee80211_hw *dev, struct sk_buff *skb,
 }
 
 /* Put adm8211_tx_hdr on skb and transmit */
-static void adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
+static void adm8211_tx(struct ieee80211_hw *dev,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
 {
 	struct adm8211_tx_hdr *txhdr;
 	size_t payload_len, hdrlen;
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index f9f15bb3f03..3cd05a7173f 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -87,7 +87,6 @@ static struct pci_driver airo_driver = {
 /* Include Wireless Extension definition and check version - Jean II */
 #include <linux/wireless.h>
 #define WIRELESS_SPY		/* enable iwspy support */
-#include <net/iw_handler.h>	/* New driver API */
 
 #define CISCO_EXT		/* enable Cisco extensions */
 #ifdef CISCO_EXT
@@ -232,8 +231,10 @@ static int adhoc;
 
 static int probe = 1;
 
+static kuid_t proc_kuid;
 static int proc_uid /* = 0 */;
 
+static kgid_t proc_kgid;
 static int proc_gid /* = 0 */;
 
 static int airo_perm = 0555;
@@ -4499,78 +4500,79 @@ struct proc_data {
 static int setup_proc_entry( struct net_device *dev,
 			     struct airo_info *apriv ) {
 	struct proc_dir_entry *entry;
+
 	/* First setup the device directory */
 	strcpy(apriv->proc_name,dev->name);
 	apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm,
 					    airo_entry);
 	if (!apriv->proc_entry)
 		goto fail;
-	apriv->proc_entry->uid = proc_uid;
-	apriv->proc_entry->gid = proc_gid;
+	apriv->proc_entry->uid = proc_kuid;
+	apriv->proc_entry->gid = proc_kgid;
 
 	/* Setup the StatsDelta */
 	entry = proc_create_data("StatsDelta", S_IRUGO & proc_perm,
 				 apriv->proc_entry, &proc_statsdelta_ops, dev);
 	if (!entry)
 		goto fail_stats_delta;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the Stats */
 	entry = proc_create_data("Stats", S_IRUGO & proc_perm,
 				 apriv->proc_entry, &proc_stats_ops, dev);
 	if (!entry)
 		goto fail_stats;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the Status */
 	entry = proc_create_data("Status", S_IRUGO & proc_perm,
 				 apriv->proc_entry, &proc_status_ops, dev);
 	if (!entry)
 		goto fail_status;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the Config */
 	entry = proc_create_data("Config", proc_perm,
 				 apriv->proc_entry, &proc_config_ops, dev);
 	if (!entry)
 		goto fail_config;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the SSID */
 	entry = proc_create_data("SSID", proc_perm,
 				 apriv->proc_entry, &proc_SSID_ops, dev);
 	if (!entry)
 		goto fail_ssid;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the APList */
 	entry = proc_create_data("APList", proc_perm,
 				 apriv->proc_entry, &proc_APList_ops, dev);
 	if (!entry)
 		goto fail_aplist;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the BSSList */
 	entry = proc_create_data("BSSList", proc_perm,
 				 apriv->proc_entry, &proc_BSSList_ops, dev);
 	if (!entry)
 		goto fail_bsslist;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	/* Setup the WepKey */
 	entry = proc_create_data("WepKey", proc_perm,
 				 apriv->proc_entry, &proc_wepkey_ops, dev);
 	if (!entry)
 		goto fail_wepkey;
-	entry->uid = proc_uid;
-	entry->gid = proc_gid;
+	entry->uid = proc_kuid;
+	entry->gid = proc_kgid;
 
 	return 0;
 
@@ -5697,11 +5699,16 @@ static int __init airo_init_module( void )
 {
 	int i;
 
+	proc_kuid = make_kuid(&init_user_ns, proc_uid);
+	proc_kgid = make_kgid(&init_user_ns, proc_gid);
+	if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid))
+		return -EINVAL;
+
 	airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL);
 
 	if (airo_entry) {
-		airo_entry->uid = proc_uid;
-		airo_entry->gid = proc_gid;
+		airo_entry->uid = proc_kuid;
+		airo_entry->gid = proc_kgid;
 	}
 
 	for (i = 0; i < 4 && io[i] && irq[i]; i++) {
@@ -5976,13 +5983,11 @@ static int airo_set_wap(struct net_device *dev,
 	Cmd cmd;
 	Resp rsp;
 	APListRid APList_rid;
-	static const u8 any[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-	static const u8 off[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 	if (awrq->sa_family != ARPHRD_ETHER)
 		return -EINVAL;
-	else if (!memcmp(any, awrq->sa_data, ETH_ALEN) ||
-	         !memcmp(off, awrq->sa_data, ETH_ALEN)) {
+	else if (is_broadcast_ether_addr(awrq->sa_data) ||
+		 is_zero_ether_addr(awrq->sa_data)) {
 		memset(&cmd, 0, sizeof(cmd));
 		cmd.cmd=CMD_LOSE_SYNC;
 		if (down_interruptible(&local->sem))
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
index efc162e0b51..99b9ddf2127 100644
--- a/drivers/net/wireless/at76c50x-usb.c
+++ b/drivers/net/wireless/at76c50x-usb.c
@@ -342,7 +342,7 @@ static int at76_dfu_get_status(struct usb_device *udev,
 	return ret;
 }
 
-static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state)
+static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
 {
 	int ret;
 
@@ -498,36 +498,6 @@ exit:
 	return ret;
 }
 
-#define HEX2STR_BUFFERS 4
-#define HEX2STR_MAX_LEN 64
-
-/* Convert binary data into hex string */
-static char *hex2str(void *buf, size_t len)
-{
-	static atomic_t a = ATOMIC_INIT(0);
-	static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1];
-	char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)];
-	char *obuf = ret;
-	u8 *ibuf = buf;
-
-	if (len > HEX2STR_MAX_LEN)
-		len = HEX2STR_MAX_LEN;
-
-	if (len == 0)
-		goto exit;
-
-	while (len--) {
-		obuf = hex_byte_pack(obuf, *ibuf++);
-		*obuf++ = '-';
-	}
-	obuf--;
-
-exit:
-	*obuf = '\0';
-
-	return ret;
-}
-
 /* LED trigger */
 static int tx_activity;
 static void at76_ledtrig_tx_timerfunc(unsigned long data);
@@ -1004,9 +974,9 @@ static void at76_dump_mib_mac_wep(struct at76_priv *priv)
 	    WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;
 
 	for (i = 0; i < WEP_KEYS; i++)
-		at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s",
+		at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %*phD",
 			 wiphy_name(priv->hw->wiphy), i,
-			 hex2str(m->wep_default_keyvalue[i], key_len));
+			 key_len, m->wep_default_keyvalue[i]);
 exit:
 	kfree(m);
 }
@@ -1031,7 +1001,7 @@ static void at76_dump_mib_mac_mgmt(struct at76_priv *priv)
 	at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration "
 		 "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d "
 		 "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d "
-		 "current_bssid %pM current_essid %s current_bss_type %d "
+		 "current_bssid %pM current_essid %*phD current_bss_type %d "
 		 "pm_mode %d ibss_change %d res %d "
 		 "multi_domain_capability_implemented %d "
 		 "international_roaming %d country_string %.3s",
@@ -1041,7 +1011,7 @@ static void at76_dump_mib_mac_mgmt(struct at76_priv *priv)
 		 le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window),
 		 m->CFP_mode, m->privacy_option_implemented, m->DTIM_period,
 		 m->CFP_period, m->current_bssid,
-		 hex2str(m->current_essid, IW_ESSID_MAX_SIZE),
+		 IW_ESSID_MAX_SIZE, m->current_essid,
 		 m->current_bss_type, m->power_mgmt_mode, m->ibss_change,
 		 m->res, m->multi_domain_capability_implemented,
 		 m->multi_domain_capability_enabled, m->country_string);
@@ -1069,7 +1039,7 @@ static void at76_dump_mib_mac(struct at76_priv *priv)
 		 "cwmin %d cwmax %d short_retry_time %d long_retry_time %d "
 		 "scan_type %d scan_channel %d probe_delay %u "
 		 "min_channel_time %d max_channel_time %d listen_int %d "
-		 "desired_ssid %s desired_bssid %pM desired_bsstype %d",
+		 "desired_ssid %*phD desired_bssid %pM desired_bsstype %d",
 		 wiphy_name(priv->hw->wiphy),
 		 le32_to_cpu(m->max_tx_msdu_lifetime),
 		 le32_to_cpu(m->max_rx_lifetime),
@@ -1080,7 +1050,7 @@ static void at76_dump_mib_mac(struct at76_priv *priv)
 		 le16_to_cpu(m->min_channel_time),
 		 le16_to_cpu(m->max_channel_time),
 		 le16_to_cpu(m->listen_interval),
-		 hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE),
+		 IW_ESSID_MAX_SIZE, m->desired_ssid,
 		 m->desired_bssid, m->desired_bsstype);
 exit:
 	kfree(m);
@@ -1160,13 +1130,13 @@ static void at76_dump_mib_mdomain(struct at76_priv *priv)
 		goto exit;
 	}
 
-	at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s",
+	at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %*phD",
 		 wiphy_name(priv->hw->wiphy),
-		 hex2str(m->channel_list, sizeof(m->channel_list)));
+		 (int)sizeof(m->channel_list), m->channel_list);
 
-	at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s",
+	at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %*phD",
 		 wiphy_name(priv->hw->wiphy),
-		 hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel)));
+		 (int)sizeof(m->tx_powerlevel), m->tx_powerlevel);
 exit:
 	kfree(m);
 }
@@ -1369,9 +1339,9 @@ static int at76_startup_device(struct at76_priv *priv)
 	int ret;
 
 	at76_dbg(DBG_PARAMS,
-		 "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d "
+		 "%s param: ssid %.*s (%*phD) mode %s ch %d wep %s key %d "
 		 "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size,
-		 priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE),
+		 priv->essid, IW_ESSID_MAX_SIZE, priv->essid,
 		 priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra",
 		 priv->channel, priv->wep_enabled ? "enabled" : "disabled",
 		 priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]);
@@ -1726,7 +1696,9 @@ static void at76_mac80211_tx_callback(struct urb *urb)
 	ieee80211_wake_queues(priv->hw);
 }
 
-static void at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void at76_mac80211_tx(struct ieee80211_hw *hw,
+			     struct ieee80211_tx_control *control,
+			     struct sk_buff *skb)
 {
 	struct at76_priv *priv = hw->priv;
 	struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer;
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 6169fbd23ed..4521342c62c 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -159,6 +159,7 @@ struct ath_common {
 
 	bool btcoex_enabled;
 	bool disable_ani;
+	bool antenna_diversity;
 };
 
 struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 64a453a6dfe..3150def1719 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1331,7 +1331,6 @@ struct ath5k_hw {
 	unsigned int		nexttbtt;	/* next beacon time in TU */
 	struct ath5k_txq	*cabq;		/* content after beacon */
 
-	int			power_level;	/* Requested tx power in dBm */
 	bool			assoc;		/* associate state */
 	bool			enable_beacon;	/* true if beacons are on */
 
@@ -1425,6 +1424,7 @@ struct ath5k_hw {
 		/* Value in dB units */
 		s16		txp_cck_ofdm_pwr_delta;
 		bool		txp_setup;
+		int		txp_requested;	/* Requested tx power in dBm */
 	} ah_txpower;
 
 	struct ath5k_nfcal_hist ah_nfcal_hist;
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 8c4c040a47b..9fd6d9a9942 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -723,7 +723,7 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
 	ret = ah->ah_setup_tx_desc(ah, ds, pktlen,
 		ieee80211_get_hdrlen_from_skb(skb), padsize,
 		get_hw_packet_type(skb),
-		(ah->power_level * 2),
+		(ah->ah_txpower.txp_requested * 2),
 		hw_rate,
 		info->control.rates[0].count, keyidx, ah->ah_tx_ant, flags,
 		cts_rate, duration);
@@ -1778,7 +1778,8 @@ ath5k_beacon_setup(struct ath5k_hw *ah, struct ath5k_buf *bf)
 	ds->ds_data = bf->skbaddr;
 	ret = ah->ah_setup_tx_desc(ah, ds, skb->len,
 			ieee80211_get_hdrlen_from_skb(skb), padsize,
-			AR5K_PKT_TYPE_BEACON, (ah->power_level * 2),
+			AR5K_PKT_TYPE_BEACON,
+			(ah->ah_txpower.txp_requested * 2),
 			ieee80211_get_tx_rate(ah->hw, info)->hw_value,
 			1, AR5K_TXKEYIX_INVALID,
 			antenna, flags, 0, 0);
@@ -2056,9 +2057,7 @@ ath5k_beacon_update_timers(struct ath5k_hw *ah, u64 bc_tsf)
 void
 ath5k_beacon_config(struct ath5k_hw *ah)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&ah->block, flags);
+	spin_lock_bh(&ah->block);
 	ah->bmisscount = 0;
 	ah->imask &= ~(AR5K_INT_BMISS | AR5K_INT_SWBA);
 
@@ -2085,7 +2084,7 @@ ath5k_beacon_config(struct ath5k_hw *ah)
 
 	ath5k_hw_set_imr(ah, ah->imask);
 	mmiowb();
-	spin_unlock_irqrestore(&ah->block, flags);
+	spin_unlock_bh(&ah->block);
 }
 
 static void ath5k_tasklet_beacon(unsigned long data)
@@ -2447,6 +2446,7 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
 	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
 			IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
 			IEEE80211_HW_SIGNAL_DBM |
+			IEEE80211_HW_MFP_CAPABLE |
 			IEEE80211_HW_REPORTS_TX_ACK_STATUS;
 
 	hw->wiphy->interface_modes =
diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c
index 4026c906cc7..b7e0258887e 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -1482,7 +1482,7 @@ ath5k_eeprom_read_target_rate_pwr_info(struct ath5k_hw *ah, unsigned int mode)
 	case AR5K_EEPROM_MODE_11A:
 		offset += AR5K_EEPROM_TARGET_PWR_OFF_11A(ee->ee_version);
 		rate_pcal_info = ee->ee_rate_tpwr_a;
-		ee->ee_rate_target_pwr_num[mode] = AR5K_EEPROM_N_5GHZ_CHAN;
+		ee->ee_rate_target_pwr_num[mode] = AR5K_EEPROM_N_5GHZ_RATE_CHAN;
 		break;
 	case AR5K_EEPROM_MODE_11B:
 		offset += AR5K_EEPROM_TARGET_PWR_OFF_11B(ee->ee_version);
diff --git a/drivers/net/wireless/ath/ath5k/eeprom.h b/drivers/net/wireless/ath/ath5k/eeprom.h
index dc2bcfeadeb..94a9bbea687 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.h
+++ b/drivers/net/wireless/ath/ath5k/eeprom.h
@@ -182,6 +182,7 @@
 #define AR5K_EEPROM_EEP_DELTA		10
 #define AR5K_EEPROM_N_MODES		3
 #define AR5K_EEPROM_N_5GHZ_CHAN		10
+#define AR5K_EEPROM_N_5GHZ_RATE_CHAN	8
 #define AR5K_EEPROM_N_2GHZ_CHAN		3
 #define AR5K_EEPROM_N_2GHZ_CHAN_2413	4
 #define	AR5K_EEPROM_N_2GHZ_CHAN_MAX	4
diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
index 260e7dc7f75..7a28538e6e0 100644
--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -55,7 +55,8 @@
 \********************/
 
 static void
-ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+ath5k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
+	 struct sk_buff *skb)
 {
 	struct ath5k_hw *ah = hw->priv;
 	u16 qnum = skb_get_queue_mapping(skb);
@@ -207,8 +208,8 @@ ath5k_config(struct ieee80211_hw *hw, u32 changed)
 	}
 
 	if ((changed & IEEE80211_CONF_CHANGE_POWER) &&
-	(ah->power_level != conf->power_level)) {
-		ah->power_level = conf->power_level;
+	(ah->ah_txpower.txp_requested != conf->power_level)) {
+		ah->ah_txpower.txp_requested = conf->power_level;
 
 		/* Half dB steps */
 		ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2));
@@ -254,7 +255,6 @@ ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	struct ath5k_vif *avf = (void *)vif->drv_priv;
 	struct ath5k_hw *ah = hw->priv;
 	struct ath_common *common = ath5k_hw_common(ah);
-	unsigned long flags;
 
 	mutex_lock(&ah->lock);
 
@@ -300,9 +300,9 @@ ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	}
 
 	if (changes & BSS_CHANGED_BEACON) {
-		spin_lock_irqsave(&ah->block, flags);
+		spin_lock_bh(&ah->block);
 		ath5k_beacon_update(hw, vif);
-		spin_unlock_irqrestore(&ah->block, flags);
+		spin_unlock_bh(&ah->block);
 	}
 
 	if (changes & BSS_CHANGED_BEACON_ENABLED)
@@ -489,6 +489,9 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	if (ath5k_modparam_nohwcrypt)
 		return -EOPNOTSUPP;
 
+	if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT)
+		return -EOPNOTSUPP;
+
 	if (vif->type == NL80211_IFTYPE_ADHOC &&
 	    (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
 	     key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
@@ -523,7 +526,7 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 			if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
 				key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 			if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
-				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
+				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
 			ret = 0;
 		}
 		break;
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 8b71a2d947e..ab363f34b4d 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1975,11 +1975,13 @@ ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
 			spur_delta_phase = (spur_offset << 18) / 25;
 			spur_freq_sigma_delta = (spur_delta_phase >> 10);
 			symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz / 2;
+			break;
 		case AR5K_BWMODE_5MHZ:
 			/* Both sample_freq and chip_freq are 10MHz (?) */
 			spur_delta_phase = (spur_offset << 19) / 25;
 			spur_freq_sigma_delta = (spur_delta_phase >> 10);
 			symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz / 4;
+			break;
 		default:
 			if (channel->band == IEEE80211_BAND_5GHZ) {
 				/* Both sample_freq and chip_freq are 40MHz */
@@ -3516,6 +3518,7 @@ ath5k_setup_rate_powertable(struct ath5k_hw *ah, u16 max_pwr,
 {
 	unsigned int i;
 	u16 *rates;
+	s16 rate_idx_scaled = 0;
 
 	/* max_pwr is power level we got from driver/user in 0.5dB
 	 * units, switch to 0.25dB units so we can compare */
@@ -3562,20 +3565,32 @@ ath5k_setup_rate_powertable(struct ath5k_hw *ah, u16 max_pwr,
 		for (i = 8; i <= 15; i++)
 			rates[i] -= ah->ah_txpower.txp_cck_ofdm_gainf_delta;
 
+	/* Save min/max and current tx power for this channel
+	 * in 0.25dB units.
+	 *
+	 * Note: We use rates[0] for current tx power because
+	 * it covers most of the rates, in most cases. It's our
+	 * tx power limit and what the user expects to see. */
+	ah->ah_txpower.txp_min_pwr = 2 * rates[7];
+	ah->ah_txpower.txp_cur_pwr = 2 * rates[0];
+
+	/* Set max txpower for correct OFDM operation on all rates
+	 * -that is the txpower for 54Mbit-, it's used for the PAPD
+	 * gain probe and it's in 0.5dB units */
+	ah->ah_txpower.txp_ofdm = rates[7];
+
 	/* Now that we have all rates setup use table offset to
 	 * match the power range set by user with the power indices
 	 * on PCDAC/PDADC table */
 	for (i = 0; i < 16; i++) {
-		rates[i] += ah->ah_txpower.txp_offset;
+		rate_idx_scaled = rates[i] + ah->ah_txpower.txp_offset;
 		/* Don't get out of bounds */
-		if (rates[i] > 63)
-			rates[i] = 63;
+		if (rate_idx_scaled > 63)
+			rate_idx_scaled = 63;
+		if (rate_idx_scaled < 0)
+			rate_idx_scaled = 0;
+		rates[i] = rate_idx_scaled;
 	}
-
-	/* Min/max in 0.25dB units */
-	ah->ah_txpower.txp_min_pwr = 2 * rates[7];
-	ah->ah_txpower.txp_cur_pwr = 2 * rates[0];
-	ah->ah_txpower.txp_ofdm = rates[7];
 }
 
 
@@ -3639,10 +3654,17 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel,
 	if (!ah->ah_txpower.txp_setup ||
 	    (channel->hw_value != curr_channel->hw_value) ||
 	    (channel->center_freq != curr_channel->center_freq)) {
-		/* Reset TX power values */
+		/* Reset TX power values but preserve requested
+		 * tx power from above */
+		int requested_txpower = ah->ah_txpower.txp_requested;
+
 		memset(&ah->ah_txpower, 0, sizeof(ah->ah_txpower));
+
+		/* Restore TPC setting and requested tx power */
 		ah->ah_txpower.txp_tpc = AR5K_TUNE_TPC_TXPOWER;
 
+		ah->ah_txpower.txp_requested = requested_txpower;
+
 		/* Calculate the powertable */
 		ret = ath5k_setup_channel_powertable(ah, channel,
 							ee_mode, type);
@@ -3789,8 +3811,9 @@ ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
 	 * RF buffer settings on 5211/5212+ so that we
 	 * properly set curve indices.
 	 */
-	ret = ath5k_hw_txpower(ah, channel, ah->ah_txpower.txp_cur_pwr ?
-			ah->ah_txpower.txp_cur_pwr / 2 : AR5K_TUNE_MAX_TXPOWER);
+	ret = ath5k_hw_txpower(ah, channel, ah->ah_txpower.txp_requested ?
+					ah->ah_txpower.txp_requested * 2 :
+					AR5K_TUNE_MAX_TXPOWER);
 	if (ret)
 		return ret;
 
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 86aeef4b9d7..7089f8160ad 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1488,7 +1488,7 @@ static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 }
 
 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
-						      char *name,
+						      const char *name,
 						      enum nl80211_iftype type,
 						      u32 *flags,
 						      struct vif_params *params)
@@ -3477,7 +3477,7 @@ void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
 	ar->num_vif--;
 }
 
-struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, char *name,
+struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
 					  enum nl80211_iftype type,
 					  u8 fw_vif_idx, u8 nw_type)
 {
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.h b/drivers/net/wireless/ath/ath6kl/cfg80211.h
index 56b1ebe7981..780f77775a9 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.h
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.h
@@ -25,7 +25,7 @@ enum ath6kl_cfg_suspend_mode {
 	ATH6KL_CFG_SUSPEND_SCHED_SCAN,
 };
 
-struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, char *name,
+struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
 					  enum nl80211_iftype type,
 					  u8 fw_vif_idx, u8 nw_type);
 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index ff007f500fe..e09ec40ce71 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -237,7 +237,7 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel,
 				     entry_cck->fir_step_level);
 
 	/* Skip MRC CCK for pre AR9003 families */
-	if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9485(ah))
+	if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah))
 		return;
 
 	if (aniState->mrcCCK != entry_cck->mrc_cck_on)
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index bbcfeb3b2a6..664844c5d3d 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -311,6 +311,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 					  struct ath_ant_comb *antcomb,
 					  int alt_ratio)
 {
+	ant_conf->main_gaintb = 0;
+	ant_conf->alt_gaintb = 0;
+
 	if (ant_conf->div_group == 0) {
 		/* Adjust the fast_div_bias based on main and alt lna conf */
 		switch ((ant_conf->main_lna_conf << 4) |
@@ -360,18 +363,12 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 			ant_conf->alt_lna_conf) {
 		case 0x01: /* A-B LNA2 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x02: /* A-B LNA1 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x03: /* A-B A+B */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x10: /* LNA2 A-B */
 			if (!(antcomb->scan) &&
@@ -379,13 +376,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x3f;
 			else
 				ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x12: /* LNA2 LNA1 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x13: /* LNA2 A+B */
 			if (!(antcomb->scan) &&
@@ -393,8 +386,6 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x3f;
 			else
 				ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x20: /* LNA1 A-B */
 			if (!(antcomb->scan) &&
@@ -402,13 +393,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x3f;
 			else
 				ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x21: /* LNA1 LNA2 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x23: /* LNA1 A+B */
 			if (!(antcomb->scan) &&
@@ -416,23 +403,15 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x3f;
 			else
 				ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x30: /* A+B A-B */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x31: /* A+B LNA2 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x32: /* A+B LNA1 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		default:
 			break;
@@ -443,18 +422,12 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->alt_lna_conf) {
 		case 0x01: /* A-B LNA2 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x02: /* A-B LNA1 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x03: /* A-B A+B */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x10: /* LNA2 A-B */
 			if (!(antcomb->scan) &&
@@ -462,13 +435,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x1;
 			else
 				ant_conf->fast_div_bias = 0x2;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x12: /* LNA2 LNA1 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x13: /* LNA2 A+B */
 			if (!(antcomb->scan) &&
@@ -476,8 +445,6 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x1;
 			else
 				ant_conf->fast_div_bias = 0x2;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x20: /* LNA1 A-B */
 			if (!(antcomb->scan) &&
@@ -485,13 +452,9 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x1;
 			else
 				ant_conf->fast_div_bias = 0x2;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x21: /* LNA1 LNA2 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x23: /* LNA1 A+B */
 			if (!(antcomb->scan) &&
@@ -499,23 +462,77 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 				ant_conf->fast_div_bias = 0x1;
 			else
 				ant_conf->fast_div_bias = 0x2;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x30: /* A+B A-B */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x31: /* A+B LNA2 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
 			break;
 		case 0x32: /* A+B LNA1 */
 			ant_conf->fast_div_bias = 0x1;
-			ant_conf->main_gaintb = 0;
-			ant_conf->alt_gaintb = 0;
+			break;
+		default:
+			break;
+		}
+	} else if (ant_conf->div_group == 3) {
+		switch ((ant_conf->main_lna_conf << 4) |
+			ant_conf->alt_lna_conf) {
+		case 0x01: /* A-B LNA2 */
+			ant_conf->fast_div_bias = 0x1;
+			break;
+		case 0x02: /* A-B LNA1 */
+			ant_conf->fast_div_bias = 0x39;
+			break;
+		case 0x03: /* A-B A+B */
+			ant_conf->fast_div_bias = 0x1;
+			break;
+		case 0x10: /* LNA2 A-B */
+			if ((antcomb->scan == 0) &&
+			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
+				ant_conf->fast_div_bias = 0x3f;
+			} else {
+				ant_conf->fast_div_bias = 0x1;
+			}
+			break;
+		case 0x12: /* LNA2 LNA1 */
+			ant_conf->fast_div_bias = 0x39;
+			break;
+		case 0x13: /* LNA2 A+B */
+			if ((antcomb->scan == 0) &&
+			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
+				ant_conf->fast_div_bias = 0x3f;
+			} else {
+				ant_conf->fast_div_bias = 0x1;
+			}
+			break;
+		case 0x20: /* LNA1 A-B */
+			if ((antcomb->scan == 0) &&
+			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
+				ant_conf->fast_div_bias = 0x3f;
+			} else {
+				ant_conf->fast_div_bias = 0x4;
+			}
+			break;
+		case 0x21: /* LNA1 LNA2 */
+			ant_conf->fast_div_bias = 0x6;
+			break;
+		case 0x23: /* LNA1 A+B */
+			if ((antcomb->scan == 0) &&
+			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
+				ant_conf->fast_div_bias = 0x3f;
+			} else {
+				ant_conf->fast_div_bias = 0x6;
+			}
+			break;
+		case 0x30: /* A+B A-B */
+			ant_conf->fast_div_bias = 0x1;
+			break;
+		case 0x31: /* A+B LNA2 */
+			ant_conf->fast_div_bias = 0x6;
+			break;
+		case 0x32: /* A+B LNA1 */
+			ant_conf->fast_div_bias = 0x1;
 			break;
 		default:
 			break;
@@ -759,6 +776,7 @@ div_comb_done:
 void ath_ant_comb_update(struct ath_softc *sc)
 {
 	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_hw_antcomb_conf div_ant_conf;
 	u8 lna_conf;
 
@@ -773,4 +791,7 @@ void ath_ant_comb_update(struct ath_softc *sc)
 	div_ant_conf.alt_lna_conf = lna_conf;
 
 	ath9k_hw_antdiv_comb_conf_set(ah, &div_ant_conf);
+
+	if (common->antenna_diversity)
+		ath9k_hw_antctrl_shared_chain_lnadiv(ah, true);
 }
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 2588848f4a8..5bbe5057ba1 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -138,7 +138,8 @@ static const struct ar9300_eeprom ar9300_default = {
 	 },
 	.base_ext1 = {
 		.ant_div_control = 0,
-		.future = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+		.future = {0, 0, 0},
+		.tempslopextension = {0, 0, 0, 0, 0, 0, 0, 0}
 	},
 	.calFreqPier2G = {
 		FREQ2FBIN(2412, 1),
@@ -713,7 +714,8 @@ static const struct ar9300_eeprom ar9300_x113 = {
 	 },
 	 .base_ext1 = {
 		.ant_div_control = 0,
-		.future = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+		.future = {0, 0, 0},
+		.tempslopextension = {0, 0, 0, 0, 0, 0, 0, 0}
 	 },
 	.calFreqPier2G = {
 		FREQ2FBIN(2412, 1),
@@ -1289,7 +1291,8 @@ static const struct ar9300_eeprom ar9300_h112 = {
 	},
 	.base_ext1 = {
 		.ant_div_control = 0,
-		.future = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+		.future = {0, 0, 0},
+		.tempslopextension = {0, 0, 0, 0, 0, 0, 0, 0}
 	},
 	.calFreqPier2G = {
 		FREQ2FBIN(2412, 1),
@@ -1865,7 +1868,8 @@ static const struct ar9300_eeprom ar9300_x112 = {
 	},
 	.base_ext1 = {
 		.ant_div_control = 0,
-		.future = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+		.future = {0, 0, 0},
+		.tempslopextension = {0, 0, 0, 0, 0, 0, 0, 0}
 	},
 	.calFreqPier2G = {
 		FREQ2FBIN(2412, 1),
@@ -2440,7 +2444,8 @@ static const struct ar9300_eeprom ar9300_h116 = {
 	 },
 	 .base_ext1 = {
 		.ant_div_control = 0,
-		.future = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+		.future = {0, 0, 0},
+		.tempslopextension = {0, 0, 0, 0, 0, 0, 0, 0}
 	 },
 	.calFreqPier2G = {
 		FREQ2FBIN(2412, 1),
@@ -2982,6 +2987,10 @@ static u32 ath9k_hw_ar9300_get_eeprom(struct ath_hw *ah,
 	case EEP_RX_MASK:
 		return pBase->txrxMask & 0xf;
 	case EEP_PAPRD:
+		if (AR_SREV_9462(ah))
+			return false;
+		if (!ah->config.enable_paprd);
+			return false;
 		return !!(pBase->featureEnable & BIT(5));
 	case EEP_CHAIN_MASK_REDUCE:
 		return (pBase->miscConfiguration >> 0x3) & 0x1;
@@ -3520,7 +3529,7 @@ static void ar9003_hw_xpa_bias_level_apply(struct ath_hw *ah, bool is2ghz)
 
 	if (AR_SREV_9485(ah) || AR_SREV_9330(ah) || AR_SREV_9340(ah))
 		REG_RMW_FIELD(ah, AR_CH0_TOP2, AR_CH0_TOP2_XPABIASLVL, bias);
-	else if (AR_SREV_9462(ah) || AR_SREV_9550(ah))
+	else if (AR_SREV_9462(ah) || AR_SREV_9550(ah) || AR_SREV_9565(ah))
 		REG_RMW_FIELD(ah, AR_CH0_TOP, AR_CH0_TOP_XPABIASLVL, bias);
 	else {
 		REG_RMW_FIELD(ah, AR_CH0_TOP, AR_CH0_TOP_XPABIASLVL, bias);
@@ -3557,9 +3566,9 @@ static u16 ar9003_hw_ant_ctrl_chain_get(struct ath_hw *ah, int chain,
 
 static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 {
+	struct ath9k_hw_capabilities *pCap = &ah->caps;
 	int chain;
 	u32 regval;
-	u32 ant_div_ctl1;
 	static const u32 switch_chain_reg[AR9300_MAX_CHAINS] = {
 			AR_PHY_SWITCH_CHAIN_0,
 			AR_PHY_SWITCH_CHAIN_1,
@@ -3568,7 +3577,7 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 
 	u32 value = ar9003_hw_ant_ctrl_common_get(ah, is2ghz);
 
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM,
 				AR_SWITCH_TABLE_COM_AR9462_ALL, value);
 	} else if (AR_SREV_9550(ah)) {
@@ -3612,7 +3621,7 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 		}
 	}
 
-	if (AR_SREV_9330(ah) || AR_SREV_9485(ah)) {
+	if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
 		value = ath9k_hw_ar9300_get_eeprom(ah, EEP_ANT_DIV_CTL1);
 		/*
 		 * main_lnaconf, alt_lnaconf, main_tb, alt_tb
@@ -3622,41 +3631,44 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 		regval &= (~AR_ANT_DIV_CTRL_ALL);
 		regval |= (value & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
 		/* enable_lnadiv */
-		regval &= (~AR_PHY_9485_ANT_DIV_LNADIV);
-		regval |= ((value >> 6) & 0x1) <<
-				AR_PHY_9485_ANT_DIV_LNADIV_S;
+		regval &= (~AR_PHY_ANT_DIV_LNADIV);
+		regval |= ((value >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
+
+		if (AR_SREV_9565(ah)) {
+			if (ah->shared_chain_lnadiv) {
+				regval |= (1 << AR_PHY_ANT_SW_RX_PROT_S);
+			} else {
+				regval &= ~(1 << AR_PHY_ANT_DIV_LNADIV_S);
+				regval &= ~(1 << AR_PHY_ANT_SW_RX_PROT_S);
+			}
+		}
+
 		REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
 
 		/*enable fast_div */
 		regval = REG_READ(ah, AR_PHY_CCK_DETECT);
 		regval &= (~AR_FAST_DIV_ENABLE);
-		regval |= ((value >> 7) & 0x1) <<
-				AR_FAST_DIV_ENABLE_S;
+		regval |= ((value >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
 		REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
-		ant_div_ctl1 =
-			ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
-		/* check whether antenna diversity is enabled */
-		if ((ant_div_ctl1 >> 0x6) == 0x3) {
+
+		if (pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) {
 			regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
 			/*
 			 * clear bits 25-30 main_lnaconf, alt_lnaconf,
 			 * main_tb, alt_tb
 			 */
-			regval &= (~(AR_PHY_9485_ANT_DIV_MAIN_LNACONF |
-					AR_PHY_9485_ANT_DIV_ALT_LNACONF |
-					AR_PHY_9485_ANT_DIV_ALT_GAINTB |
-					AR_PHY_9485_ANT_DIV_MAIN_GAINTB));
+			regval &= (~(AR_PHY_ANT_DIV_MAIN_LNACONF |
+				     AR_PHY_ANT_DIV_ALT_LNACONF |
+				     AR_PHY_ANT_DIV_ALT_GAINTB |
+				     AR_PHY_ANT_DIV_MAIN_GAINTB));
 			/* by default use LNA1 for the main antenna */
-			regval |= (AR_PHY_9485_ANT_DIV_LNA1 <<
-					AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S);
-			regval |= (AR_PHY_9485_ANT_DIV_LNA2 <<
-					AR_PHY_9485_ANT_DIV_ALT_LNACONF_S);
+			regval |= (AR_PHY_ANT_DIV_LNA1 <<
+				   AR_PHY_ANT_DIV_MAIN_LNACONF_S);
+			regval |= (AR_PHY_ANT_DIV_LNA2 <<
+				   AR_PHY_ANT_DIV_ALT_LNACONF_S);
 			REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
 		}
-
-
 	}
-
 }
 
 static void ar9003_hw_drive_strength_apply(struct ath_hw *ah)
@@ -3843,7 +3855,7 @@ void ar9003_hw_internal_regulator_apply(struct ath_hw *ah)
 			REG_WRITE(ah, AR_PHY_PMU2, reg_pmu_set);
 			if (!is_pmu_set(ah, AR_PHY_PMU2, reg_pmu_set))
 				return;
-		} else if (AR_SREV_9462(ah)) {
+		} else if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 			reg_val = le32_to_cpu(pBase->swreg);
 			REG_WRITE(ah, AR_PHY_PMU1, reg_val);
 		} else {
@@ -3874,7 +3886,7 @@ void ar9003_hw_internal_regulator_apply(struct ath_hw *ah)
 			while (!REG_READ_FIELD(ah, AR_PHY_PMU2,
 						AR_PHY_PMU2_PGM))
 				udelay(10);
-		} else if (AR_SREV_9462(ah))
+		} else if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 			REG_RMW_FIELD(ah, AR_PHY_PMU1, AR_PHY_PMU1_PWD, 0x1);
 		else {
 			reg_val = REG_READ(ah, AR_RTC_SLEEP_CLK) |
@@ -3977,6 +3989,62 @@ static void ar9003_hw_xlna_bias_strength_apply(struct ath_hw *ah, bool is2ghz)
 		      bias & 0x3);
 }
 
+static int ar9003_hw_get_thermometer(struct ath_hw *ah)
+{
+	struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
+	struct ar9300_base_eep_hdr *pBase = &eep->baseEepHeader;
+	int thermometer =  (pBase->miscConfiguration >> 1) & 0x3;
+
+	return --thermometer;
+}
+
+static void ar9003_hw_thermometer_apply(struct ath_hw *ah)
+{
+	int thermometer = ar9003_hw_get_thermometer(ah);
+	u8 therm_on = (thermometer < 0) ? 0 : 1;
+
+	REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_RXTX4,
+		      AR_PHY_65NM_CH0_RXTX4_THERM_ON_OVR, therm_on);
+	if (ah->caps.tx_chainmask & BIT(1))
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH1_RXTX4,
+			      AR_PHY_65NM_CH0_RXTX4_THERM_ON_OVR, therm_on);
+	if (ah->caps.tx_chainmask & BIT(2))
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH2_RXTX4,
+			      AR_PHY_65NM_CH0_RXTX4_THERM_ON_OVR, therm_on);
+
+	therm_on = (thermometer < 0) ? 0 : (thermometer == 0);
+	REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_RXTX4,
+		      AR_PHY_65NM_CH0_RXTX4_THERM_ON, therm_on);
+	if (ah->caps.tx_chainmask & BIT(1)) {
+		therm_on = (thermometer < 0) ? 0 : (thermometer == 1);
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH1_RXTX4,
+			      AR_PHY_65NM_CH0_RXTX4_THERM_ON, therm_on);
+	}
+	if (ah->caps.tx_chainmask & BIT(2)) {
+		therm_on = (thermometer < 0) ? 0 : (thermometer == 2);
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH2_RXTX4,
+			      AR_PHY_65NM_CH0_RXTX4_THERM_ON, therm_on);
+	}
+}
+
+static void ar9003_hw_thermo_cal_apply(struct ath_hw *ah)
+{
+	u32 data, ko, kg;
+
+	if (!AR_SREV_9462_20(ah))
+		return;
+	ar9300_otp_read_word(ah, 1, &data);
+	ko = data & 0xff;
+	kg = (data >> 8) & 0xff;
+	if (ko || kg) {
+		REG_RMW_FIELD(ah, AR_PHY_BB_THERM_ADC_3,
+			      AR_PHY_BB_THERM_ADC_3_THERM_ADC_OFFSET, ko);
+		REG_RMW_FIELD(ah, AR_PHY_BB_THERM_ADC_3,
+			      AR_PHY_BB_THERM_ADC_3_THERM_ADC_SCALE_GAIN,
+			      kg + 256);
+	}
+}
+
 static void ath9k_hw_ar9300_set_board_values(struct ath_hw *ah,
 					     struct ath9k_channel *chan)
 {
@@ -3992,6 +4060,8 @@ static void ath9k_hw_ar9300_set_board_values(struct ath_hw *ah,
 		ar9003_hw_internal_regulator_apply(ah);
 	ar9003_hw_apply_tuning_caps(ah);
 	ar9003_hw_txend_to_xpa_off_apply(ah, is2ghz);
+	ar9003_hw_thermometer_apply(ah);
+	ar9003_hw_thermo_cal_apply(ah);
 }
 
 static void ath9k_hw_ar9300_set_addac(struct ath_hw *ah,
@@ -4528,7 +4598,7 @@ static int ar9003_hw_power_control_override(struct ath_hw *ah,
 {
 	int tempSlope = 0;
 	struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
-	int f[3], t[3];
+	int f[8], t[8], i;
 
 	REG_RMW(ah, AR_PHY_TPC_11_B0,
 		(correction[0] << AR_PHY_TPC_OLPC_GAIN_DELTA_S),
@@ -4561,7 +4631,14 @@ static int ar9003_hw_power_control_override(struct ath_hw *ah,
 	 */
 	if (frequency < 4000)
 		tempSlope = eep->modalHeader2G.tempSlope;
-	else if (eep->base_ext2.tempSlopeLow != 0) {
+	else if ((eep->baseEepHeader.miscConfiguration & 0x20) != 0) {
+		for (i = 0; i < 8; i++) {
+			t[i] = eep->base_ext1.tempslopextension[i];
+			f[i] = FBIN2FREQ(eep->calFreqPier5G[i], 0);
+		}
+		tempSlope = ar9003_hw_power_interpolate((s32) frequency,
+							f, t, 8);
+	} else if (eep->base_ext2.tempSlopeLow != 0) {
 		t[0] = eep->base_ext2.tempSlopeLow;
 		f[0] = 5180;
 		t[1] = eep->modalHeader5G.tempSlope;
@@ -4901,90 +4978,79 @@ static void ar9003_hw_set_power_per_rate_table(struct ath_hw *ah,
 				i, cfgCtl, pCtlMode[ctlMode], ctlIndex[i],
 				chan->channel);
 
-				/*
-				 * compare test group from regulatory
-				 * channel list with test mode from pCtlMode
-				 * list
-				 */
-				if ((((cfgCtl & ~CTL_MODE_M) |
-				       (pCtlMode[ctlMode] & CTL_MODE_M)) ==
-					ctlIndex[i]) ||
-				    (((cfgCtl & ~CTL_MODE_M) |
-				       (pCtlMode[ctlMode] & CTL_MODE_M)) ==
-				     ((ctlIndex[i] & CTL_MODE_M) |
-				       SD_NO_CTL))) {
-					twiceMinEdgePower =
-					  ar9003_hw_get_max_edge_power(pEepData,
-								       freq, i,
-								       is2ghz);
-
-					if ((cfgCtl & ~CTL_MODE_M) == SD_NO_CTL)
-						/*
-						 * Find the minimum of all CTL
-						 * edge powers that apply to
-						 * this channel
-						 */
-						twiceMaxEdgePower =
-							min(twiceMaxEdgePower,
-							    twiceMinEdgePower);
-						else {
-							/* specific */
-							twiceMaxEdgePower =
-							  twiceMinEdgePower;
-							break;
-						}
+			/*
+			 * compare test group from regulatory
+			 * channel list with test mode from pCtlMode
+			 * list
+			 */
+			if ((((cfgCtl & ~CTL_MODE_M) |
+			       (pCtlMode[ctlMode] & CTL_MODE_M)) ==
+				ctlIndex[i]) ||
+			    (((cfgCtl & ~CTL_MODE_M) |
+			       (pCtlMode[ctlMode] & CTL_MODE_M)) ==
+			     ((ctlIndex[i] & CTL_MODE_M) |
+			       SD_NO_CTL))) {
+				twiceMinEdgePower =
+				  ar9003_hw_get_max_edge_power(pEepData,
+							       freq, i,
+							       is2ghz);
+
+				if ((cfgCtl & ~CTL_MODE_M) == SD_NO_CTL)
+					/*
+					 * Find the minimum of all CTL
+					 * edge powers that apply to
+					 * this channel
+					 */
+					twiceMaxEdgePower =
+						min(twiceMaxEdgePower,
+						    twiceMinEdgePower);
+				else {
+					/* specific */
+					twiceMaxEdgePower = twiceMinEdgePower;
+					break;
 				}
 			}
+		}
 
-			minCtlPower = (u8)min(twiceMaxEdgePower, scaledPower);
+		minCtlPower = (u8)min(twiceMaxEdgePower, scaledPower);
 
-			ath_dbg(common, REGULATORY,
-				"SEL-Min ctlMode %d pCtlMode %d 2xMaxEdge %d sP %d minCtlPwr %d\n",
-				ctlMode, pCtlMode[ctlMode], twiceMaxEdgePower,
-				scaledPower, minCtlPower);
-
-			/* Apply ctl mode to correct target power set */
-			switch (pCtlMode[ctlMode]) {
-			case CTL_11B:
-				for (i = ALL_TARGET_LEGACY_1L_5L;
-				     i <= ALL_TARGET_LEGACY_11S; i++)
-					pPwrArray[i] =
-					  (u8)min((u16)pPwrArray[i],
-						  minCtlPower);
-				break;
-			case CTL_11A:
-			case CTL_11G:
-				for (i = ALL_TARGET_LEGACY_6_24;
-				     i <= ALL_TARGET_LEGACY_54; i++)
-					pPwrArray[i] =
-					  (u8)min((u16)pPwrArray[i],
-						  minCtlPower);
-				break;
-			case CTL_5GHT20:
-			case CTL_2GHT20:
-				for (i = ALL_TARGET_HT20_0_8_16;
-				     i <= ALL_TARGET_HT20_21; i++)
-					pPwrArray[i] =
-					  (u8)min((u16)pPwrArray[i],
-						  minCtlPower);
-				pPwrArray[ALL_TARGET_HT20_22] =
-				  (u8)min((u16)pPwrArray[ALL_TARGET_HT20_22],
-					  minCtlPower);
-				pPwrArray[ALL_TARGET_HT20_23] =
-				  (u8)min((u16)pPwrArray[ALL_TARGET_HT20_23],
-					   minCtlPower);
-				break;
-			case CTL_5GHT40:
-			case CTL_2GHT40:
-				for (i = ALL_TARGET_HT40_0_8_16;
-				     i <= ALL_TARGET_HT40_23; i++)
-					pPwrArray[i] =
-					  (u8)min((u16)pPwrArray[i],
-						  minCtlPower);
-				break;
-			default:
-			    break;
-			}
+		ath_dbg(common, REGULATORY,
+			"SEL-Min ctlMode %d pCtlMode %d 2xMaxEdge %d sP %d minCtlPwr %d\n",
+			ctlMode, pCtlMode[ctlMode], twiceMaxEdgePower,
+			scaledPower, minCtlPower);
+
+		/* Apply ctl mode to correct target power set */
+		switch (pCtlMode[ctlMode]) {
+		case CTL_11B:
+			for (i = ALL_TARGET_LEGACY_1L_5L;
+			     i <= ALL_TARGET_LEGACY_11S; i++)
+				pPwrArray[i] = (u8)min((u16)pPwrArray[i],
+						       minCtlPower);
+			break;
+		case CTL_11A:
+		case CTL_11G:
+			for (i = ALL_TARGET_LEGACY_6_24;
+			     i <= ALL_TARGET_LEGACY_54; i++)
+				pPwrArray[i] = (u8)min((u16)pPwrArray[i],
+						       minCtlPower);
+			break;
+		case CTL_5GHT20:
+		case CTL_2GHT20:
+			for (i = ALL_TARGET_HT20_0_8_16;
+			     i <= ALL_TARGET_HT20_23; i++)
+				pPwrArray[i] = (u8)min((u16)pPwrArray[i],
+						       minCtlPower);
+			break;
+		case CTL_5GHT40:
+		case CTL_2GHT40:
+			for (i = ALL_TARGET_HT40_0_8_16;
+			     i <= ALL_TARGET_HT40_23; i++)
+				pPwrArray[i] = (u8)min((u16)pPwrArray[i],
+						       minCtlPower);
+			break;
+		default:
+			break;
+		}
 	} /* end ctl mode checking */
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index 3a1ff55bceb..41b1a75e6be 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -267,7 +267,8 @@ struct cal_ctl_data_5g {
 
 struct ar9300_BaseExtension_1 {
 	u8 ant_div_control;
-	u8 future[11];
+	u8 future[3];
+	u8 tempslopextension[8];
 	int8_t quick_drop_low;
 	int8_t quick_drop_high;
 } __packed;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index 1e8a4da5952..1a36fa26263 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -24,6 +24,7 @@
 #include "ar955x_1p0_initvals.h"
 #include "ar9580_1p0_initvals.h"
 #include "ar9462_2p0_initvals.h"
+#include "ar9565_1p0_initvals.h"
 
 /* General hardware code for the AR9003 hadware family */
 
@@ -34,14 +35,12 @@
  */
 static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 {
-#define PCIE_PLL_ON_CREQ_DIS_L1_2P0 \
-		ar9462_pciephy_pll_on_clkreq_disable_L1_2p0
-
 #define AR9462_BB_CTX_COEFJ(x)	\
 		ar9462_##x##_baseband_core_txfir_coeff_japan_2484
 
 #define AR9462_BBC_TXIFR_COEFFJ \
 		ar9462_2p0_baseband_core_txfir_coeff_japan_2484
+
 	if (AR_SREV_9330_11(ah)) {
 		/* mac */
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
@@ -220,10 +219,10 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 
 		/* Awake -> Sleep Setting */
 		INIT_INI_ARRAY(&ah->iniPcieSerdes,
-				PCIE_PLL_ON_CREQ_DIS_L1_2P0);
+			       ar9462_pciephy_pll_on_clkreq_disable_L1_2p0);
 		/* Sleep -> Awake Setting */
 		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
-				PCIE_PLL_ON_CREQ_DIS_L1_2P0);
+			       ar9462_pciephy_pll_on_clkreq_disable_L1_2p0);
 
 		/* Fast clock modal settings */
 		INIT_INI_ARRAY(&ah->iniModesFastClock,
@@ -302,6 +301,39 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 
 		INIT_INI_ARRAY(&ah->iniModesFastClock,
 				ar9580_1p0_modes_fast_clock);
+	} else if (AR_SREV_9565(ah)) {
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
+			       ar9565_1p0_mac_core);
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_POST],
+			       ar9565_1p0_mac_postamble);
+
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_CORE],
+			       ar9565_1p0_baseband_core);
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_POST],
+			       ar9565_1p0_baseband_postamble);
+
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_CORE],
+			       ar9565_1p0_radio_core);
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_POST],
+			       ar9565_1p0_radio_postamble);
+
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_PRE],
+			       ar9565_1p0_soc_preamble);
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_POST],
+			       ar9565_1p0_soc_postamble);
+
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9565_1p0_Common_rx_gain_table);
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			       ar9565_1p0_Modes_lowest_ob_db_tx_gain_table);
+
+		INIT_INI_ARRAY(&ah->iniPcieSerdes,
+			       ar9565_1p0_pciephy_pll_on_clkreq_disable_L1);
+		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
+			       ar9565_1p0_pciephy_pll_on_clkreq_disable_L1);
+
+		INIT_INI_ARRAY(&ah->iniModesFastClock,
+				ar9565_1p0_modes_fast_clock);
 	} else {
 		/* mac */
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
@@ -374,6 +406,9 @@ static void ar9003_tx_gain_table_mode0(struct ath_hw *ah)
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9462_modes_low_ob_db_tx_gain_table_2p0);
+	else if (AR_SREV_9565(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			       ar9565_1p0_modes_low_ob_db_tx_gain_table);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9300Modes_lowest_ob_db_tx_gain_table_2p2);
@@ -402,6 +437,9 @@ static void ar9003_tx_gain_table_mode1(struct ath_hw *ah)
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9462_modes_high_ob_db_tx_gain_table_2p0);
+	else if (AR_SREV_9565(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			       ar9565_1p0_modes_high_ob_db_tx_gain_table);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9300Modes_high_ob_db_tx_gain_table_2p2);
@@ -424,6 +462,9 @@ static void ar9003_tx_gain_table_mode2(struct ath_hw *ah)
 	else if (AR_SREV_9580(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9580_1p0_low_ob_db_tx_gain_table);
+	else if (AR_SREV_9565(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			       ar9565_1p0_modes_low_ob_db_tx_gain_table);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9300Modes_low_ob_db_tx_gain_table_2p2);
@@ -446,6 +487,9 @@ static void ar9003_tx_gain_table_mode3(struct ath_hw *ah)
 	else if (AR_SREV_9580(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9580_1p0_high_power_tx_gain_table);
+	else if (AR_SREV_9565(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			       ar9565_1p0_modes_high_power_tx_gain_table);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9300Modes_high_power_tx_gain_table_2p2);
@@ -538,6 +582,9 @@ static void ar9003_rx_gain_table_mode1(struct ath_hw *ah)
 	} else if (AR_SREV_9580(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			ar9580_1p0_wo_xlna_rx_gain_table);
+	else if (AR_SREV_9565(ah))
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9565_1p0_common_wo_xlna_rx_gain_table);
 	else
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			ar9300Common_wo_xlna_rx_gain_table_2p2);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 78816b8b217..301bf72c53b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -31,7 +31,7 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
 	u32 val, ctl12, ctl17;
 	u8 desc_len;
 
-	desc_len = (AR_SREV_9462(ah) ? 0x18 : 0x17);
+	desc_len = ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x18 : 0x17);
 
 	val = (ATHEROS_VENDOR_ID << AR_DescId_S) |
 	      (1 << AR_TxRxDesc_S) |
@@ -182,6 +182,7 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
 	struct ath9k_hw_capabilities *pCap = &ah->caps;
 	struct ath_common *common = ath9k_hw_common(ah);
 	u32 sync_cause = 0, async_cause, async_mask = AR_INTR_MAC_IRQ;
+	bool fatal_int;
 
 	if (ath9k_hw_mci_is_enabled(ah))
 		async_mask |= AR_INTR_ASYNC_MASK_MCI;
@@ -310,6 +311,22 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
 
 	if (sync_cause) {
 		ath9k_debug_sync_cause(common, sync_cause);
+		fatal_int =
+			(sync_cause &
+			 (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
+			? true : false;
+
+		if (fatal_int) {
+			if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) {
+				ath_dbg(common, ANY,
+					"received PCI FATAL interrupt\n");
+			}
+			if (sync_cause & AR_INTR_SYNC_HOST1_PERR) {
+				ath_dbg(common, ANY,
+					"received PCI PERR interrupt\n");
+			}
+			*masked |= ATH9K_INT_FATAL;
+		}
 
 		if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
 			REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
@@ -531,7 +548,7 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
 				rxs->rs_status |= ATH9K_RXERR_PHY;
 				rxs->rs_phyerr = phyerr;
 			}
-		};
+		}
 	}
 
 	if (rxsp->status11 & AR_KeyMiss)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 9a34fcaae3f..44c202ce6c6 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -714,6 +714,7 @@ bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
 
 	return true;
 }
+EXPORT_SYMBOL(ar9003_mci_start_reset);
 
 int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 			 struct ath9k_hw_cal_data *caldata)
@@ -812,8 +813,8 @@ static void ar9003_mci_osla_setup(struct ath_hw *ah, bool enable)
 		      AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN, 1);
 }
 
-void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
-		      bool is_full_sleep)
+int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
+		     bool is_full_sleep)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
@@ -823,14 +824,13 @@ void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
 		is_full_sleep, is_2g);
 
 	if (!mci->gpm_addr && !mci->sched_addr) {
-		ath_dbg(common, MCI,
-			"MCI GPM and schedule buffers are not allocated\n");
-		return;
+		ath_err(common, "MCI GPM and schedule buffers are not allocated\n");
+		return -ENOMEM;
 	}
 
 	if (REG_READ(ah, AR_BTCOEX_CTRL) == 0xdeadbeef) {
-		ath_dbg(common, MCI, "BTCOEX control register is dead\n");
-		return;
+		ath_err(common, "BTCOEX control register is dead\n");
+		return -EINVAL;
 	}
 
 	/* Program MCI DMA related registers */
@@ -912,6 +912,8 @@ void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
 
 	if (en_int)
 		ar9003_mci_enable_interrupt(ah);
+
+	return 0;
 }
 
 void ar9003_mci_stop_bt(struct ath_hw *ah, bool save_fullsleep)
@@ -1026,6 +1028,7 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force)
 
 		if (!(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA))
 			ar9003_mci_osla_setup(ah, true);
+		REG_WRITE(ah, AR_SELFGEN_MASK, 0x02);
 	} else {
 		ar9003_mci_send_lna_take(ah, true);
 		udelay(5);
@@ -1142,8 +1145,8 @@ void ar9003_mci_init_cal_done(struct ath_hw *ah)
 	ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false);
 }
 
-void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
-		      u16 len, u32 sched_addr)
+int ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
+		     u16 len, u32 sched_addr)
 {
 	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
 
@@ -1152,7 +1155,7 @@ void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
 	mci->gpm_len = len;
 	mci->sched_addr = sched_addr;
 
-	ar9003_mci_reset(ah, true, true, true);
+	return ar9003_mci_reset(ah, true, true, true);
 }
 EXPORT_SYMBOL(ar9003_mci_setup);
 
@@ -1201,12 +1204,6 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type)
 
 		ar9003_mci_2g5g_switch(ah, false);
 		break;
-	case MCI_STATE_SET_BT_CAL_START:
-		mci->bt_state = MCI_BT_CAL_START;
-		break;
-	case MCI_STATE_SET_BT_CAL:
-		mci->bt_state = MCI_BT_CAL;
-		break;
 	case MCI_STATE_RESET_REQ_WAKE:
 		ar9003_mci_reset_req_wakeup(ah);
 		mci->update_2g5g = true;
@@ -1240,6 +1237,10 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type)
 	case MCI_STATE_NEED_FTP_STOMP:
 		value = !(mci->config & ATH_MCI_CONFIG_DISABLE_FTP_STOMP);
 		break;
+	case MCI_STATE_NEED_FLUSH_BT_INFO:
+		value = (!mci->unhalt_bt_gpm && mci->need_flush_btinfo) ? 1 : 0;
+		mci->need_flush_btinfo = false;
+		break;
 	default:
 		break;
 	}
@@ -1289,7 +1290,7 @@ void ar9003_mci_set_power_awake(struct ath_hw *ah)
 	}
 	REG_WRITE(ah, AR_DIAG_SW, (diag_sw | BIT(27) | BIT(19) | BIT(18)));
 	lna_ctrl = REG_READ(ah, AR_OBS_BUS_CTRL) & 0x3;
-	bt_sleep = REG_READ(ah, AR_MCI_RX_STATUS) & AR_MCI_RX_REMOTE_SLEEP;
+	bt_sleep = MS(REG_READ(ah, AR_MCI_RX_STATUS), AR_MCI_RX_REMOTE_SLEEP);
 
 	REG_WRITE(ah, AR_BTCOEX_CTRL2, btcoex_ctrl2);
 	REG_WRITE(ah, AR_DIAG_SW, diag_sw);
@@ -1327,6 +1328,10 @@ u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, bool first, u32 *more)
 
 	if (first) {
 		gpm_ptr = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR);
+
+		if (gpm_ptr >= mci->gpm_len)
+			gpm_ptr = 0;
+
 		mci->gpm_idx = gpm_ptr;
 		return gpm_ptr;
 	}
@@ -1371,6 +1376,10 @@ u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, bool first, u32 *more)
 			more_gpm = MCI_GPM_NOMORE;
 
 		temp_index = mci->gpm_idx;
+
+		if (temp_index >= mci->gpm_len)
+			temp_index = 0;
+
 		mci->gpm_idx++;
 
 		if (mci->gpm_idx >= mci->gpm_len)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
index d33b8e12885..2a2d0188961 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
@@ -190,8 +190,6 @@ enum mci_bt_state {
 enum mci_state_type {
 	MCI_STATE_ENABLE,
 	MCI_STATE_SET_BT_AWAKE,
-	MCI_STATE_SET_BT_CAL_START,
-	MCI_STATE_SET_BT_CAL,
 	MCI_STATE_LAST_SCHD_MSG_OFFSET,
 	MCI_STATE_REMOTE_SLEEP,
 	MCI_STATE_RESET_REQ_WAKE,
@@ -202,6 +200,7 @@ enum mci_state_type {
 	MCI_STATE_RECOVER_RX,
 	MCI_STATE_NEED_FTP_STOMP,
 	MCI_STATE_DEBUG,
+	MCI_STATE_NEED_FLUSH_BT_INFO,
 	MCI_STATE_MAX
 };
 
@@ -213,7 +212,8 @@ enum mci_gpm_coex_opcode {
 	MCI_GPM_COEX_WLAN_CHANNELS,
 	MCI_GPM_COEX_BT_PROFILE_INFO,
 	MCI_GPM_COEX_BT_STATUS_UPDATE,
-	MCI_GPM_COEX_BT_UPDATE_FLAGS
+	MCI_GPM_COEX_BT_UPDATE_FLAGS,
+	MCI_GPM_COEX_NOOP,
 };
 
 #define MCI_GPM_NOMORE  0
@@ -249,8 +249,8 @@ bool ar9003_mci_send_message(struct ath_hw *ah, u8 header, u32 flag,
 			     u32 *payload, u8 len, bool wait_done,
 			     bool check_bt);
 u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type);
-void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
-		      u16 len, u32 sched_addr);
+int ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
+		     u16 len, u32 sched_addr);
 void ar9003_mci_cleanup(struct ath_hw *ah);
 void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,
 			      u32 *rx_msg_intr);
@@ -272,8 +272,8 @@ void ar9003_mci_check_bt(struct ath_hw *ah);
 bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan);
 int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 			 struct ath9k_hw_cal_data *caldata);
-void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
-		      bool is_full_sleep);
+int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
+		     bool is_full_sleep);
 void ar9003_mci_get_isr(struct ath_hw *ah, enum ath9k_int *masked);
 void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah);
 void ar9003_mci_set_power_awake(struct ath_hw *ah);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index 2c9f7d7ed4c..0ed3846f9cb 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -142,6 +142,7 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
 	};
 	int training_power;
 	int i, val;
+	u32 am2pm_mask = ah->paprd_ratemask;
 
 	if (IS_CHAN_2GHZ(ah->curchan))
 		training_power = ar9003_get_training_power_2g(ah);
@@ -158,10 +159,13 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
 	}
 	ah->paprd_training_power = training_power;
 
+	if (AR_SREV_9330(ah))
+		am2pm_mask = 0;
+
 	REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2AM, AR_PHY_PAPRD_AM2AM_MASK,
 		      ah->paprd_ratemask);
 	REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2PM, AR_PHY_PAPRD_AM2PM_MASK,
-		      ah->paprd_ratemask);
+		      am2pm_mask);
 	REG_RMW_FIELD(ah, AR_PHY_PAPRD_HT40, AR_PHY_PAPRD_HT40_MASK,
 		      ah->paprd_ratemask_ht40);
 
@@ -782,6 +786,102 @@ int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain)
 }
 EXPORT_SYMBOL(ar9003_paprd_setup_gain_table);
 
+static bool ar9003_paprd_retrain_pa_in(struct ath_hw *ah,
+				       struct ath9k_hw_cal_data *caldata,
+				       int chain)
+{
+	u32 *pa_in = caldata->pa_table[chain];
+	int capdiv_offset, quick_drop_offset;
+	int capdiv2g, quick_drop;
+	int count = 0;
+	int i;
+
+	if (!AR_SREV_9485(ah) && !AR_SREV_9330(ah))
+		return false;
+
+	capdiv2g = REG_READ_FIELD(ah, AR_PHY_65NM_CH0_TXRF3,
+				  AR_PHY_65NM_CH0_TXRF3_CAPDIV2G);
+
+	quick_drop = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
+				    AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP);
+
+	if (quick_drop)
+		quick_drop -= 0x40;
+
+	for (i = 0; i < NUM_BIN + 1; i++) {
+		if (pa_in[i] == 1400)
+			count++;
+	}
+
+	if (AR_SREV_9485(ah)) {
+		if (pa_in[23] < 800) {
+			capdiv_offset = (int)((1000 - pa_in[23] + 75) / 150);
+			capdiv2g += capdiv_offset;
+			if (capdiv2g > 7) {
+				capdiv2g = 7;
+				if (pa_in[23] < 600) {
+					quick_drop++;
+					if (quick_drop > 0)
+						quick_drop = 0;
+				}
+			}
+		} else if (pa_in[23] == 1400) {
+			quick_drop_offset = min_t(int, count / 3, 2);
+			quick_drop += quick_drop_offset;
+			capdiv2g += quick_drop_offset / 2;
+
+			if (capdiv2g > 7)
+				capdiv2g = 7;
+
+			if (quick_drop > 0) {
+				quick_drop = 0;
+				capdiv2g -= quick_drop_offset;
+				if (capdiv2g < 0)
+					capdiv2g = 0;
+			}
+		} else {
+			return false;
+		}
+	} else if (AR_SREV_9330(ah)) {
+		if (pa_in[23] < 1000) {
+			capdiv_offset = (1000 - pa_in[23]) / 100;
+			capdiv2g += capdiv_offset;
+			if (capdiv_offset > 3) {
+				capdiv_offset = 1;
+				quick_drop--;
+			}
+
+			capdiv2g += capdiv_offset;
+			if (capdiv2g > 6)
+				capdiv2g = 6;
+			if (quick_drop < -4)
+				quick_drop = -4;
+		} else if (pa_in[23] == 1400) {
+			if (count > 3) {
+				quick_drop++;
+				capdiv2g -= count / 4;
+				if (quick_drop > -2)
+					quick_drop = -2;
+			} else {
+				capdiv2g--;
+			}
+
+			if (capdiv2g < 0)
+				capdiv2g = 0;
+		} else {
+			return false;
+		}
+	}
+
+	REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_TXRF3,
+		      AR_PHY_65NM_CH0_TXRF3_CAPDIV2G, capdiv2g);
+	REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
+		      AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP,
+		      quick_drop);
+
+	return true;
+}
+
 int ar9003_paprd_create_curve(struct ath_hw *ah,
 			      struct ath9k_hw_cal_data *caldata, int chain)
 {
@@ -817,6 +917,9 @@ int ar9003_paprd_create_curve(struct ath_hw *ah,
 	if (!create_pa_curve(data_L, data_U, pa_table, small_signal_gain))
 		status = -2;
 
+	if (ar9003_paprd_retrain_pa_in(ah, caldata, chain))
+		status = -EINPROGRESS;
+
 	REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1,
 		    AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index e476f9f92ce..759f5f5a715 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -88,7 +88,7 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
 			channelSel = (freq * 4) / div;
 			chan_frac = (((freq * 4) % div) * 0x20000) / div;
 			channelSel = (channelSel << 17) | chan_frac;
-		} else if (AR_SREV_9485(ah)) {
+		} else if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
 			u32 chan_frac;
 
 			/*
@@ -206,6 +206,7 @@ static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
 	for (i = 0; i < max_spur_cnts; i++) {
 		if (AR_SREV_9462(ah) && (i == 0 || i == 3))
 			continue;
+
 		negative = 0;
 		if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
 		    AR_SREV_9550(ah))
@@ -301,7 +302,9 @@ static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 				int freq_offset,
 				int spur_freq_sd,
 				int spur_delta_phase,
-				int spur_subchannel_sd)
+				int spur_subchannel_sd,
+				int range,
+				int synth_freq)
 {
 	int mask_index = 0;
 
@@ -316,8 +319,11 @@ static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 		      AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
 	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 		      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
-	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
-		      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
+
+	if (!(AR_SREV_9565(ah) && range == 10 && synth_freq == 2437))
+		REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+			      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
+
 	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 		      AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
 	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
@@ -358,9 +364,44 @@ static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 		      AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
 }
 
+static void ar9003_hw_spur_ofdm_9565(struct ath_hw *ah,
+				     int freq_offset)
+{
+	int mask_index = 0;
+
+	mask_index = (freq_offset << 4) / 5;
+	if (mask_index < 0)
+		mask_index = mask_index - 1;
+
+	mask_index = mask_index & 0x7f;
+
+	REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
+		      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B,
+		      mask_index);
+
+	/* A == B */
+	REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
+		      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A,
+		      mask_index);
+
+	REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
+		      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B,
+		      mask_index);
+	REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
+		      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B, 0xe);
+	REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
+		      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B, 0xe);
+
+	/* A == B */
+	REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
+		      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
+}
+
 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
 				     struct ath9k_channel *chan,
-				     int freq_offset)
+				     int freq_offset,
+				     int range,
+				     int synth_freq)
 {
 	int spur_freq_sd = 0;
 	int spur_subchannel_sd = 0;
@@ -402,7 +443,8 @@ static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
 			    freq_offset,
 			    spur_freq_sd,
 			    spur_delta_phase,
-			    spur_subchannel_sd);
+			    spur_subchannel_sd,
+			    range, synth_freq);
 }
 
 /* Spur mitigation for OFDM */
@@ -447,7 +489,17 @@ static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
 		freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode);
 		freq_offset -= synth_freq;
 		if (abs(freq_offset) < range) {
-			ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
+			ar9003_hw_spur_ofdm_work(ah, chan, freq_offset,
+						 range, synth_freq);
+
+			if (AR_SREV_9565(ah) && (i < 4)) {
+				freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i + 1],
+								 mode);
+				freq_offset -= synth_freq;
+				if (abs(freq_offset) < range)
+					ar9003_hw_spur_ofdm_9565(ah, freq_offset);
+			}
+
 			break;
 		}
 	}
@@ -456,7 +508,8 @@ static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
 				    struct ath9k_channel *chan)
 {
-	ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
+	if (!AR_SREV_9565(ah))
+		ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
 	ar9003_hw_spur_mitigate_ofdm(ah, chan);
 }
 
@@ -552,9 +605,6 @@ static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 
 	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
 		REG_WRITE(ah, AR_SELFGEN_MASK, 0x3);
-	else if (AR_SREV_9462(ah))
-		/* xxx only when MCI support is enabled */
-		REG_WRITE(ah, AR_SELFGEN_MASK, 0x3);
 	else
 		REG_WRITE(ah, AR_SELFGEN_MASK, tx);
 
@@ -736,7 +786,7 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 	if (chan->channel == 2484)
 		ar9003_hw_prog_ini(ah, &ah->ini_japan2484, 1);
 
-	if (AR_SREV_9462(ah))
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 		REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE,
 			  AR_GLB_SWREG_DISCONT_EN_BT_WLAN);
 
@@ -746,9 +796,9 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 	ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
 	ath9k_hw_apply_txpower(ah, chan, false);
 
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
-				AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
+				   AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
 			ah->enabled_cals |= TX_IQ_CAL;
 		else
 			ah->enabled_cals &= ~TX_IQ_CAL;
@@ -1111,7 +1161,7 @@ static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
 	if (AR_SREV_9330(ah))
 		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
 
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ;
 		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ;
 		ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ;
@@ -1223,17 +1273,17 @@ static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
 }
 
 static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
-				   struct ath_hw_antcomb_conf *antconf)
+					   struct ath_hw_antcomb_conf *antconf)
 {
 	u32 regval;
 
 	regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
-	antconf->main_lna_conf = (regval & AR_PHY_9485_ANT_DIV_MAIN_LNACONF) >>
-				  AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S;
-	antconf->alt_lna_conf = (regval & AR_PHY_9485_ANT_DIV_ALT_LNACONF) >>
-				 AR_PHY_9485_ANT_DIV_ALT_LNACONF_S;
-	antconf->fast_div_bias = (regval & AR_PHY_9485_ANT_FAST_DIV_BIAS) >>
-				  AR_PHY_9485_ANT_FAST_DIV_BIAS_S;
+	antconf->main_lna_conf = (regval & AR_PHY_ANT_DIV_MAIN_LNACONF) >>
+				  AR_PHY_ANT_DIV_MAIN_LNACONF_S;
+	antconf->alt_lna_conf = (regval & AR_PHY_ANT_DIV_ALT_LNACONF) >>
+				 AR_PHY_ANT_DIV_ALT_LNACONF_S;
+	antconf->fast_div_bias = (regval & AR_PHY_ANT_FAST_DIV_BIAS) >>
+				  AR_PHY_ANT_FAST_DIV_BIAS_S;
 
 	if (AR_SREV_9330_11(ah)) {
 		antconf->lna1_lna2_delta = -9;
@@ -1241,6 +1291,9 @@ static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
 	} else if (AR_SREV_9485(ah)) {
 		antconf->lna1_lna2_delta = -9;
 		antconf->div_group = 2;
+	} else if (AR_SREV_9565(ah)) {
+		antconf->lna1_lna2_delta = -3;
+		antconf->div_group = 3;
 	} else {
 		antconf->lna1_lna2_delta = -3;
 		antconf->div_group = 0;
@@ -1253,26 +1306,84 @@ static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
 	u32 regval;
 
 	regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
-	regval &= ~(AR_PHY_9485_ANT_DIV_MAIN_LNACONF |
-		    AR_PHY_9485_ANT_DIV_ALT_LNACONF |
-		    AR_PHY_9485_ANT_FAST_DIV_BIAS |
-		    AR_PHY_9485_ANT_DIV_MAIN_GAINTB |
-		    AR_PHY_9485_ANT_DIV_ALT_GAINTB);
-	regval |= ((antconf->main_lna_conf <<
-					AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S)
-		   & AR_PHY_9485_ANT_DIV_MAIN_LNACONF);
-	regval |= ((antconf->alt_lna_conf << AR_PHY_9485_ANT_DIV_ALT_LNACONF_S)
-		   & AR_PHY_9485_ANT_DIV_ALT_LNACONF);
-	regval |= ((antconf->fast_div_bias << AR_PHY_9485_ANT_FAST_DIV_BIAS_S)
-		   & AR_PHY_9485_ANT_FAST_DIV_BIAS);
-	regval |= ((antconf->main_gaintb << AR_PHY_9485_ANT_DIV_MAIN_GAINTB_S)
-		   & AR_PHY_9485_ANT_DIV_MAIN_GAINTB);
-	regval |= ((antconf->alt_gaintb << AR_PHY_9485_ANT_DIV_ALT_GAINTB_S)
-		   & AR_PHY_9485_ANT_DIV_ALT_GAINTB);
+	regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
+		    AR_PHY_ANT_DIV_ALT_LNACONF |
+		    AR_PHY_ANT_FAST_DIV_BIAS |
+		    AR_PHY_ANT_DIV_MAIN_GAINTB |
+		    AR_PHY_ANT_DIV_ALT_GAINTB);
+	regval |= ((antconf->main_lna_conf << AR_PHY_ANT_DIV_MAIN_LNACONF_S)
+		   & AR_PHY_ANT_DIV_MAIN_LNACONF);
+	regval |= ((antconf->alt_lna_conf << AR_PHY_ANT_DIV_ALT_LNACONF_S)
+		   & AR_PHY_ANT_DIV_ALT_LNACONF);
+	regval |= ((antconf->fast_div_bias << AR_PHY_ANT_FAST_DIV_BIAS_S)
+		   & AR_PHY_ANT_FAST_DIV_BIAS);
+	regval |= ((antconf->main_gaintb << AR_PHY_ANT_DIV_MAIN_GAINTB_S)
+		   & AR_PHY_ANT_DIV_MAIN_GAINTB);
+	regval |= ((antconf->alt_gaintb << AR_PHY_ANT_DIV_ALT_GAINTB_S)
+		   & AR_PHY_ANT_DIV_ALT_GAINTB);
 
 	REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
 }
 
+static void ar9003_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
+						  bool enable)
+{
+	u8 ant_div_ctl1;
+	u32 regval;
+
+	if (!AR_SREV_9565(ah))
+		return;
+
+	ah->shared_chain_lnadiv = enable;
+	ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
+
+	regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
+	regval &= (~AR_ANT_DIV_CTRL_ALL);
+	regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
+	regval &= ~AR_PHY_ANT_DIV_LNADIV;
+	regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
+
+	if (enable)
+		regval |= AR_ANT_DIV_ENABLE;
+
+	REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
+
+	regval = REG_READ(ah, AR_PHY_CCK_DETECT);
+	regval &= ~AR_FAST_DIV_ENABLE;
+	regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
+
+	if (enable)
+		regval |= AR_FAST_DIV_ENABLE;
+
+	REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
+
+	if (enable) {
+		REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+			    (1 << AR_PHY_ANT_SW_RX_PROT_S));
+		if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
+			REG_SET_BIT(ah, AR_PHY_RESTART,
+				    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
+		REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
+			    AR_BTCOEX_WL_LNADIV_FORCE_ON);
+	} else {
+		REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, AR_ANT_DIV_ENABLE);
+		REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+			    (1 << AR_PHY_ANT_SW_RX_PROT_S));
+		REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, AR_FAST_DIV_ENABLE);
+		REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
+			    AR_BTCOEX_WL_LNADIV_FORCE_ON);
+
+		regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
+		regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
+			AR_PHY_ANT_DIV_ALT_LNACONF |
+			AR_PHY_ANT_DIV_MAIN_GAINTB |
+			AR_PHY_ANT_DIV_ALT_GAINTB);
+		regval |= (AR_PHY_ANT_DIV_LNA1 << AR_PHY_ANT_DIV_MAIN_LNACONF_S);
+		regval |= (AR_PHY_ANT_DIV_LNA2 << AR_PHY_ANT_DIV_ALT_LNACONF_S);
+		REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
+	}
+}
+
 static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
 				      struct ath9k_channel *chan,
 				      u8 *ini_reloaded)
@@ -1312,10 +1423,10 @@ static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
 	ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex);
 	ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
 	ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);
+
 	if (AR_SREV_9462_20(ah))
-		ar9003_hw_prog_ini(ah,
-				&ah->ini_radio_post_sys2ant,
-				modesIndex);
+		ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
+				   modesIndex);
 
 	REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 
@@ -1326,6 +1437,9 @@ static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
 	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 		REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites);
 
+	if (AR_SREV_9565(ah))
+		REG_WRITE_ARRAY(&ah->iniModesFastClock, 1, regWrites);
+
 	REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
 
 	ah->modes_index = modesIndex;
@@ -1368,6 +1482,7 @@ void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
 
 	ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
 	ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
+	ops->antctrl_shared_chain_lnadiv = ar9003_hw_antctrl_shared_chain_lnadiv;
 
 	ar9003_hw_set_nf_limits(ah);
 	ar9003_hw_set_radar_conf(ah);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index 7bfbaf065a4..9a48e3d2f23 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -223,15 +223,24 @@
 #define AR_PHY_ML_CNTL_2       (AR_MRC_BASE + 0x1c)
 #define AR_PHY_TST_ADC         (AR_MRC_BASE + 0x20)
 
-#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A              0x00000FE0
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A      0x00000FE0
 #define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A_S    5
-#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A                  0x1F
-#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A_S                0
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A          0x1F
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A_S        0
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B      0x00FE0000
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B_S    17
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B          0x0001F000
+#define AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B_S        12
 
 #define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A        0x00000FE0
 #define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A_S      5
 #define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A            0x1F
 #define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A_S		0
+#define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B	0x00FE0000
+#define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B_S	17
+#define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B		0x0001F000
+#define AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B_S		12
+
 
 /*
  * MRC Feild Definitions
@@ -271,23 +280,25 @@
 #define AR_ANT_DIV_ENABLE_S	24
 
 
-#define AR_PHY_9485_ANT_FAST_DIV_BIAS			0x00007e00
-#define AR_PHY_9485_ANT_FAST_DIV_BIAS_S                  9
-#define AR_PHY_9485_ANT_DIV_LNADIV			0x01000000
-#define AR_PHY_9485_ANT_DIV_LNADIV_S			24
-#define AR_PHY_9485_ANT_DIV_ALT_LNACONF			0x06000000
-#define AR_PHY_9485_ANT_DIV_ALT_LNACONF_S		25
-#define AR_PHY_9485_ANT_DIV_MAIN_LNACONF		0x18000000
-#define AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S		27
-#define AR_PHY_9485_ANT_DIV_ALT_GAINTB			0x20000000
-#define AR_PHY_9485_ANT_DIV_ALT_GAINTB_S		29
-#define AR_PHY_9485_ANT_DIV_MAIN_GAINTB			0x40000000
-#define AR_PHY_9485_ANT_DIV_MAIN_GAINTB_S		30
-
-#define AR_PHY_9485_ANT_DIV_LNA1_MINUS_LNA2		0x0
-#define AR_PHY_9485_ANT_DIV_LNA2			0x1
-#define AR_PHY_9485_ANT_DIV_LNA1			0x2
-#define AR_PHY_9485_ANT_DIV_LNA1_PLUS_LNA2		0x3
+#define AR_PHY_ANT_FAST_DIV_BIAS                0x00007e00
+#define AR_PHY_ANT_FAST_DIV_BIAS_S              9
+#define AR_PHY_ANT_SW_RX_PROT                   0x00800000
+#define AR_PHY_ANT_SW_RX_PROT_S                 23
+#define AR_PHY_ANT_DIV_LNADIV                   0x01000000
+#define AR_PHY_ANT_DIV_LNADIV_S                 24
+#define AR_PHY_ANT_DIV_ALT_LNACONF              0x06000000
+#define AR_PHY_ANT_DIV_ALT_LNACONF_S            25
+#define AR_PHY_ANT_DIV_MAIN_LNACONF             0x18000000
+#define AR_PHY_ANT_DIV_MAIN_LNACONF_S           27
+#define AR_PHY_ANT_DIV_ALT_GAINTB               0x20000000
+#define AR_PHY_ANT_DIV_ALT_GAINTB_S             29
+#define AR_PHY_ANT_DIV_MAIN_GAINTB              0x40000000
+#define AR_PHY_ANT_DIV_MAIN_GAINTB_S            30
+
+#define AR_PHY_ANT_DIV_LNA1_MINUS_LNA2          0x0
+#define AR_PHY_ANT_DIV_LNA2                     0x1
+#define AR_PHY_ANT_DIV_LNA1                     0x2
+#define AR_PHY_ANT_DIV_LNA1_PLUS_LNA2           0x3
 
 #define AR_PHY_EXTCHN_PWRTHR1   (AR_AGC_BASE + 0x2c)
 #define AR_PHY_EXT_CHN_WIN      (AR_AGC_BASE + 0x30)
@@ -413,6 +424,8 @@
 #define AR_PHY_FIND_SIG_RELSTEP        0x1f
 #define AR_PHY_FIND_SIG_RELSTEP_S         0
 #define AR_PHY_FIND_SIG_RELSTEP_SIGN_BIT  5
+#define AR_PHY_RESTART_ENABLE_DIV_M2FLAG 0x00200000
+#define AR_PHY_RESTART_ENABLE_DIV_M2FLAG_S 21
 #define AR_PHY_RESTART_DIV_GC   0x001C0000
 #define AR_PHY_RESTART_DIV_GC_S 18
 #define AR_PHY_RESTART_ENA      0x01
@@ -609,6 +622,12 @@
 #define AR_PHY_BB_THERM_ADC_1_INIT_THERM		0x000000ff
 #define AR_PHY_BB_THERM_ADC_1_INIT_THERM_S		0
 
+#define AR_PHY_BB_THERM_ADC_3				(AR_SM_BASE + 0x250)
+#define AR_PHY_BB_THERM_ADC_3_THERM_ADC_SCALE_GAIN	0x0001ff00
+#define AR_PHY_BB_THERM_ADC_3_THERM_ADC_SCALE_GAIN_S	8
+#define AR_PHY_BB_THERM_ADC_3_THERM_ADC_OFFSET		0x000000ff
+#define AR_PHY_BB_THERM_ADC_3_THERM_ADC_OFFSET_S	0
+
 #define AR_PHY_BB_THERM_ADC_4				(AR_SM_BASE + 0x254)
 #define AR_PHY_BB_THERM_ADC_4_LATEST_THERM_VALUE	0x000000ff
 #define AR_PHY_BB_THERM_ADC_4_LATEST_THERM_VALUE_S	0
@@ -625,9 +644,13 @@
 #define AR_PHY_AIC_CTRL_4_B0	(AR_SM_BASE + 0x4c0)
 #define AR_PHY_AIC_STAT_2_B0	(AR_SM_BASE + 0x4cc)
 
+#define AR_PHY_65NM_CH0_TXRF3       0x16048
+#define AR_PHY_65NM_CH0_TXRF3_CAPDIV2G		0x0000001e
+#define AR_PHY_65NM_CH0_TXRF3_CAPDIV2G_S	1
+
 #define AR_PHY_65NM_CH0_SYNTH4      0x1608c
-#define AR_PHY_SYNTH4_LONG_SHIFT_SELECT   (AR_SREV_9462(ah) ? 0x00000001 : 0x00000002)
-#define AR_PHY_SYNTH4_LONG_SHIFT_SELECT_S (AR_SREV_9462(ah) ? 0 : 1)
+#define AR_PHY_SYNTH4_LONG_SHIFT_SELECT   ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x00000001 : 0x00000002)
+#define AR_PHY_SYNTH4_LONG_SHIFT_SELECT_S ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0 : 1)
 #define AR_PHY_65NM_CH0_SYNTH7      0x16098
 #define AR_PHY_65NM_CH0_BIAS1       0x160c0
 #define AR_PHY_65NM_CH0_BIAS2       0x160c4
@@ -637,7 +660,7 @@
 #define AR_PHY_65NM_CH2_RXTX4       0x1690c
 
 #define AR_CH0_TOP	(AR_SREV_9300(ah) ? 0x16288 : \
-				((AR_SREV_9462(ah) ? 0x1628c : 0x16280)))
+			 (((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x1628c : 0x16280)))
 #define AR_CH0_TOP_XPABIASLVL (AR_SREV_9550(ah) ? 0x3c0 : 0x300)
 #define AR_CH0_TOP_XPABIASLVL_S (AR_SREV_9550(ah) ? 6 : 8)
 
@@ -665,7 +688,7 @@
 #define AR_SWITCH_TABLE_ALL_S (0)
 
 #define AR_PHY_65NM_CH0_THERM       (AR_SREV_9300(ah) ? 0x16290 :\
-					(AR_SREV_9462(ah) ? 0x16294 : 0x1628c))
+				     ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x16294 : 0x1628c))
 
 #define AR_PHY_65NM_CH0_THERM_LOCAL   0x80000000
 #define AR_PHY_65NM_CH0_THERM_LOCAL_S 31
@@ -687,17 +710,17 @@
 #define AR_CH0_TOP2_XPABIASLVL_S	12
 
 #define AR_CH0_XTAL		(AR_SREV_9300(ah) ? 0x16294 : \
-					(AR_SREV_9462(ah) ? 0x16298 : 0x16290))
+				 ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x16298 : 0x16290))
 #define AR_CH0_XTAL_CAPINDAC	0x7f000000
 #define AR_CH0_XTAL_CAPINDAC_S	24
 #define AR_CH0_XTAL_CAPOUTDAC	0x00fe0000
 #define AR_CH0_XTAL_CAPOUTDAC_S	17
 
-#define AR_PHY_PMU1		(AR_SREV_9462(ah) ? 0x16340 : 0x16c40)
+#define AR_PHY_PMU1		((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x16340 : 0x16c40)
 #define AR_PHY_PMU1_PWD		0x1
 #define AR_PHY_PMU1_PWD_S	0
 
-#define AR_PHY_PMU2		(AR_SREV_9462(ah) ? 0x16344 : 0x16c44)
+#define AR_PHY_PMU2		((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x16344 : 0x16c44)
 #define AR_PHY_PMU2_PGM		0x00200000
 #define AR_PHY_PMU2_PGM_S	21
 
@@ -877,6 +900,8 @@
 
 #define AR_PHY_65NM_CH0_RXTX4_THERM_ON          0x10000000
 #define AR_PHY_65NM_CH0_RXTX4_THERM_ON_S        28
+#define AR_PHY_65NM_CH0_RXTX4_THERM_ON_OVR      0x20000000
+#define AR_PHY_65NM_CH0_RXTX4_THERM_ON_OVR_S    29
 
 #define AR_PHY_65NM_RXTX4_XLNA_BIAS		0xC0000000
 #define AR_PHY_65NM_RXTX4_XLNA_BIAS_S		30
@@ -1240,4 +1265,24 @@
 #define AR_PHY_CL_TAB_CL_GAIN_MOD		0x1f
 #define AR_PHY_CL_TAB_CL_GAIN_MOD_S		0
 
+#define AR_BTCOEX_WL_LNADIV                                0x1a64
+#define AR_BTCOEX_WL_LNADIV_PREDICTED_PERIOD               0x00003FFF
+#define AR_BTCOEX_WL_LNADIV_PREDICTED_PERIOD_S             0
+#define AR_BTCOEX_WL_LNADIV_DPDT_IGNORE_PRIORITY           0x00004000
+#define AR_BTCOEX_WL_LNADIV_DPDT_IGNORE_PRIORITY_S         14
+#define AR_BTCOEX_WL_LNADIV_FORCE_ON                       0x00008000
+#define AR_BTCOEX_WL_LNADIV_FORCE_ON_S                     15
+#define AR_BTCOEX_WL_LNADIV_MODE_OPTION                    0x00030000
+#define AR_BTCOEX_WL_LNADIV_MODE_OPTION_S                  16
+#define AR_BTCOEX_WL_LNADIV_MODE                           0x007c0000
+#define AR_BTCOEX_WL_LNADIV_MODE_S                         18
+#define AR_BTCOEX_WL_LNADIV_ALLOWED_TX_ANTDIV_WL_TX_REQ    0x00800000
+#define AR_BTCOEX_WL_LNADIV_ALLOWED_TX_ANTDIV_WL_TX_REQ_S  23
+#define AR_BTCOEX_WL_LNADIV_DISABLE_TX_ANTDIV_ENABLE       0x01000000
+#define AR_BTCOEX_WL_LNADIV_DISABLE_TX_ANTDIV_ENABLE_S     24
+#define AR_BTCOEX_WL_LNADIV_CONTINUOUS_BT_ACTIVE_PROTECT   0x02000000
+#define AR_BTCOEX_WL_LNADIV_CONTINUOUS_BT_ACTIVE_PROTECT_S 25
+#define AR_BTCOEX_WL_LNADIV_BT_INACTIVE_THRESHOLD          0xFC000000
+#define AR_BTCOEX_WL_LNADIV_BT_INACTIVE_THRESHOLD_S        26
+
 #endif  /* AR9003_PHY_H */
diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index 4ef7dcccaa2..58f30f65c6b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -58,7 +58,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
 	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
 	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
 	{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
-	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
+	{0x00009e3c, 0xcf946222, 0xcf946222, 0xcfd5c782, 0xcfd5c282},
 	{0x00009e44, 0x62321e27, 0x62321e27, 0xfe291e27, 0xfe291e27},
 	{0x00009e48, 0x5030201a, 0x5030201a, 0x50302012, 0x50302012},
 	{0x00009fc8, 0x0003f000, 0x0003f000, 0x0001a000, 0x0001a000},
diff --git a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
new file mode 100644
index 00000000000..843e79f67ff
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
@@ -0,0 +1,1231 @@
+/*
+ * Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef INITVALS_9565_1P0_H
+#define INITVALS_9565_1P0_H
+
+/* AR9565 1.0 */
+
+static const u32 ar9565_1p0_mac_core[][2] = {
+	/* Addr      allmodes  */
+	{0x00000008, 0x00000000},
+	{0x00000030, 0x000a0085},
+	{0x00000034, 0x00000005},
+	{0x00000040, 0x00000000},
+	{0x00000044, 0x00000000},
+	{0x00000048, 0x00000008},
+	{0x0000004c, 0x00000010},
+	{0x00000050, 0x00000000},
+	{0x00001040, 0x002ffc0f},
+	{0x00001044, 0x002ffc0f},
+	{0x00001048, 0x002ffc0f},
+	{0x0000104c, 0x002ffc0f},
+	{0x00001050, 0x002ffc0f},
+	{0x00001054, 0x002ffc0f},
+	{0x00001058, 0x002ffc0f},
+	{0x0000105c, 0x002ffc0f},
+	{0x00001060, 0x002ffc0f},
+	{0x00001064, 0x002ffc0f},
+	{0x000010f0, 0x00000100},
+	{0x00001270, 0x00000000},
+	{0x000012b0, 0x00000000},
+	{0x000012f0, 0x00000000},
+	{0x0000143c, 0x00000000},
+	{0x0000147c, 0x00000000},
+	{0x00001810, 0x0f000003},
+	{0x00008000, 0x00000000},
+	{0x00008004, 0x00000000},
+	{0x00008008, 0x00000000},
+	{0x0000800c, 0x00000000},
+	{0x00008018, 0x00000000},
+	{0x00008020, 0x00000000},
+	{0x00008038, 0x00000000},
+	{0x0000803c, 0x00000000},
+	{0x00008040, 0x00000000},
+	{0x00008044, 0x00000000},
+	{0x00008048, 0x00000000},
+	{0x00008054, 0x00000000},
+	{0x00008058, 0x00000000},
+	{0x0000805c, 0x000fc78f},
+	{0x00008060, 0x0000000f},
+	{0x00008064, 0x00000000},
+	{0x00008070, 0x00000310},
+	{0x00008074, 0x00000020},
+	{0x00008078, 0x00000000},
+	{0x0000809c, 0x0000000f},
+	{0x000080a0, 0x00000000},
+	{0x000080a4, 0x02ff0000},
+	{0x000080a8, 0x0e070605},
+	{0x000080ac, 0x0000000d},
+	{0x000080b0, 0x00000000},
+	{0x000080b4, 0x00000000},
+	{0x000080b8, 0x00000000},
+	{0x000080bc, 0x00000000},
+	{0x000080c0, 0x2a800000},
+	{0x000080c4, 0x06900168},
+	{0x000080c8, 0x13881c20},
+	{0x000080cc, 0x01f40000},
+	{0x000080d0, 0x00252500},
+	{0x000080d4, 0x00b00005},
+	{0x000080d8, 0x00400002},
+	{0x000080dc, 0x00000000},
+	{0x000080e0, 0xffffffff},
+	{0x000080e4, 0x0000ffff},
+	{0x000080e8, 0x3f3f3f3f},
+	{0x000080ec, 0x00000000},
+	{0x000080f0, 0x00000000},
+	{0x000080f4, 0x00000000},
+	{0x000080fc, 0x00020000},
+	{0x00008100, 0x00000000},
+	{0x00008108, 0x00000052},
+	{0x0000810c, 0x00000000},
+	{0x00008110, 0x00000000},
+	{0x00008114, 0x000007ff},
+	{0x00008118, 0x000000aa},
+	{0x0000811c, 0x00003210},
+	{0x00008124, 0x00000000},
+	{0x00008128, 0x00000000},
+	{0x0000812c, 0x00000000},
+	{0x00008130, 0x00000000},
+	{0x00008134, 0x00000000},
+	{0x00008138, 0x00000000},
+	{0x0000813c, 0x0000ffff},
+	{0x00008144, 0xffffffff},
+	{0x00008168, 0x00000000},
+	{0x0000816c, 0x00000000},
+	{0x00008170, 0x18486200},
+	{0x00008174, 0x33332210},
+	{0x00008178, 0x00000000},
+	{0x0000817c, 0x00020000},
+	{0x000081c4, 0x33332210},
+	{0x000081c8, 0x00000000},
+	{0x000081cc, 0x00000000},
+	{0x000081d4, 0x00000000},
+	{0x000081ec, 0x00000000},
+	{0x000081f0, 0x00000000},
+	{0x000081f4, 0x00000000},
+	{0x000081f8, 0x00000000},
+	{0x000081fc, 0x00000000},
+	{0x00008240, 0x00100000},
+	{0x00008244, 0x0010f424},
+	{0x00008248, 0x00000800},
+	{0x0000824c, 0x0001e848},
+	{0x00008250, 0x00000000},
+	{0x00008254, 0x00000000},
+	{0x00008258, 0x00000000},
+	{0x0000825c, 0x40000000},
+	{0x00008260, 0x00080922},
+	{0x00008264, 0x9d400010},
+	{0x00008268, 0xffffffff},
+	{0x0000826c, 0x0000ffff},
+	{0x00008270, 0x00000000},
+	{0x00008274, 0x40000000},
+	{0x00008278, 0x003e4180},
+	{0x0000827c, 0x00000004},
+	{0x00008284, 0x0000002c},
+	{0x00008288, 0x0000002c},
+	{0x0000828c, 0x000000ff},
+	{0x00008294, 0x00000000},
+	{0x00008298, 0x00000000},
+	{0x0000829c, 0x00000000},
+	{0x00008300, 0x00000140},
+	{0x00008314, 0x00000000},
+	{0x0000831c, 0x0000010d},
+	{0x00008328, 0x00000000},
+	{0x0000832c, 0x0000001f},
+	{0x00008330, 0x00000302},
+	{0x00008334, 0x00000700},
+	{0x00008338, 0xffff0000},
+	{0x0000833c, 0x02400000},
+	{0x00008340, 0x000107ff},
+	{0x00008344, 0xaa48105b},
+	{0x00008348, 0x008f0000},
+	{0x0000835c, 0x00000000},
+	{0x00008360, 0xffffffff},
+	{0x00008364, 0xffffffff},
+	{0x00008368, 0x00000000},
+	{0x00008370, 0x00000000},
+	{0x00008374, 0x000000ff},
+	{0x00008378, 0x00000000},
+	{0x0000837c, 0x00000000},
+	{0x00008380, 0xffffffff},
+	{0x00008384, 0xffffffff},
+	{0x00008390, 0xffffffff},
+	{0x00008394, 0xffffffff},
+	{0x00008398, 0x00000000},
+	{0x0000839c, 0x00000000},
+	{0x000083a4, 0x0000fa14},
+	{0x000083a8, 0x000f0c00},
+	{0x000083ac, 0x33332210},
+	{0x000083b0, 0x33332210},
+	{0x000083b4, 0x33332210},
+	{0x000083b8, 0x33332210},
+	{0x000083bc, 0x00000000},
+	{0x000083c0, 0x00000000},
+	{0x000083c4, 0x00000000},
+	{0x000083c8, 0x00000000},
+	{0x000083cc, 0x00000200},
+	{0x000083d0, 0x800301ff},
+};
+
+static const u32 ar9565_1p0_mac_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00001030, 0x00000230, 0x00000460, 0x000002c0, 0x00000160},
+	{0x00001070, 0x00000168, 0x000002d0, 0x00000318, 0x0000018c},
+	{0x000010b0, 0x00000e60, 0x00001cc0, 0x00007c70, 0x00003e38},
+	{0x00008014, 0x03e803e8, 0x07d007d0, 0x10801600, 0x08400b00},
+	{0x0000801c, 0x128d8027, 0x128d804f, 0x12e00057, 0x12e0002b},
+	{0x00008120, 0x08f04800, 0x08f04800, 0x08f04810, 0x08f04810},
+	{0x000081d0, 0x00003210, 0x00003210, 0x0000320a, 0x0000320a},
+	{0x00008318, 0x00003e80, 0x00007d00, 0x00006880, 0x00003440},
+};
+
+static const u32 ar9565_1p0_baseband_core[][2] = {
+	/* Addr      allmodes  */
+	{0x00009800, 0xafe68e30},
+	{0x00009804, 0xfd14e000},
+	{0x00009808, 0x9c0a8f6b},
+	{0x0000980c, 0x04800000},
+	{0x00009814, 0x9280c00a},
+	{0x00009818, 0x00000000},
+	{0x0000981c, 0x00020028},
+	{0x00009834, 0x6400a290},
+	{0x00009838, 0x0108ecff},
+	{0x0000983c, 0x0d000600},
+	{0x00009880, 0x201fff00},
+	{0x00009884, 0x00001042},
+	{0x000098a4, 0x00200400},
+	{0x000098b0, 0x32840bbe},
+	{0x000098d0, 0x004b6a8e},
+	{0x000098d4, 0x00000820},
+	{0x000098dc, 0x00000000},
+	{0x000098e4, 0x01ffffff},
+	{0x000098e8, 0x01ffffff},
+	{0x000098ec, 0x01ffffff},
+	{0x000098f0, 0x00000000},
+	{0x000098f4, 0x00000000},
+	{0x00009bf0, 0x80000000},
+	{0x00009c04, 0xff55ff55},
+	{0x00009c08, 0x0320ff55},
+	{0x00009c0c, 0x00000000},
+	{0x00009c10, 0x00000000},
+	{0x00009c14, 0x00046384},
+	{0x00009c18, 0x05b6b440},
+	{0x00009c1c, 0x00b6b440},
+	{0x00009d00, 0xc080a333},
+	{0x00009d04, 0x40206c10},
+	{0x00009d08, 0x009c4060},
+	{0x00009d0c, 0x1883800a},
+	{0x00009d10, 0x01834061},
+	{0x00009d14, 0x00c00400},
+	{0x00009d18, 0x00000000},
+	{0x00009e08, 0x0078230c},
+	{0x00009e24, 0x990bb515},
+	{0x00009e28, 0x126f0000},
+	{0x00009e30, 0x06336f77},
+	{0x00009e34, 0x6af6532f},
+	{0x00009e38, 0x0cc80c00},
+	{0x00009e40, 0x0d261820},
+	{0x00009e4c, 0x00001004},
+	{0x00009e50, 0x00ff03f1},
+	{0x00009e54, 0xe4c355c7},
+	{0x00009e5c, 0xe9198724},
+	{0x00009fc0, 0x823e4fc8},
+	{0x00009fc4, 0x0001efb5},
+	{0x00009fcc, 0x40000014},
+	{0x0000a20c, 0x00000000},
+	{0x0000a220, 0x00000000},
+	{0x0000a224, 0x00000000},
+	{0x0000a228, 0x10002310},
+	{0x0000a23c, 0x00000000},
+	{0x0000a244, 0x0c000000},
+	{0x0000a2a0, 0x00000001},
+	{0x0000a2c0, 0x00000001},
+	{0x0000a2c8, 0x00000000},
+	{0x0000a2cc, 0x18c43433},
+	{0x0000a2d4, 0x00000000},
+	{0x0000a2ec, 0x00000000},
+	{0x0000a2f0, 0x00000000},
+	{0x0000a2f4, 0x00000000},
+	{0x0000a2f8, 0x00000000},
+	{0x0000a344, 0x00000000},
+	{0x0000a34c, 0x00000000},
+	{0x0000a350, 0x0000a000},
+	{0x0000a364, 0x00000000},
+	{0x0000a370, 0x00000000},
+	{0x0000a390, 0x00000001},
+	{0x0000a394, 0x00000444},
+	{0x0000a398, 0x001f0e0f},
+	{0x0000a39c, 0x0075393f},
+	{0x0000a3a0, 0xb79f6427},
+	{0x0000a3a4, 0x00000000},
+	{0x0000a3a8, 0xaaaaaaaa},
+	{0x0000a3ac, 0x3c466478},
+	{0x0000a3c0, 0x20202020},
+	{0x0000a3c4, 0x22222220},
+	{0x0000a3c8, 0x20200020},
+	{0x0000a3cc, 0x20202020},
+	{0x0000a3d0, 0x20202020},
+	{0x0000a3d4, 0x20202020},
+	{0x0000a3d8, 0x20202020},
+	{0x0000a3dc, 0x20202020},
+	{0x0000a3e0, 0x20202020},
+	{0x0000a3e4, 0x20202020},
+	{0x0000a3e8, 0x20202020},
+	{0x0000a3ec, 0x20202020},
+	{0x0000a3f0, 0x00000000},
+	{0x0000a3f4, 0x00000006},
+	{0x0000a3f8, 0x0c9bd380},
+	{0x0000a3fc, 0x000f0f01},
+	{0x0000a400, 0x8fa91f01},
+	{0x0000a404, 0x00000000},
+	{0x0000a408, 0x0e79e5c6},
+	{0x0000a40c, 0x00820820},
+	{0x0000a414, 0x1ce739ce},
+	{0x0000a418, 0x2d001dce},
+	{0x0000a41c, 0x1ce739ce},
+	{0x0000a420, 0x000001ce},
+	{0x0000a424, 0x1ce739ce},
+	{0x0000a428, 0x000001ce},
+	{0x0000a42c, 0x1ce739ce},
+	{0x0000a430, 0x1ce739ce},
+	{0x0000a434, 0x00000000},
+	{0x0000a438, 0x00001801},
+	{0x0000a43c, 0x00000000},
+	{0x0000a440, 0x00000000},
+	{0x0000a444, 0x00000000},
+	{0x0000a448, 0x05000096},
+	{0x0000a44c, 0x00000001},
+	{0x0000a450, 0x00010000},
+	{0x0000a454, 0x03000000},
+	{0x0000a458, 0x00000000},
+	{0x0000a644, 0xbfad9d74},
+	{0x0000a648, 0x0048060a},
+	{0x0000a64c, 0x00003c37},
+	{0x0000a670, 0x03020100},
+	{0x0000a674, 0x09080504},
+	{0x0000a678, 0x0d0c0b0a},
+	{0x0000a67c, 0x13121110},
+	{0x0000a680, 0x31301514},
+	{0x0000a684, 0x35343332},
+	{0x0000a688, 0x00000036},
+	{0x0000a690, 0x00000838},
+	{0x0000a6b4, 0x00512c01},
+	{0x0000a7c0, 0x00000000},
+	{0x0000a7c4, 0xfffffffc},
+	{0x0000a7c8, 0x00000000},
+	{0x0000a7cc, 0x00000000},
+	{0x0000a7d0, 0x00000000},
+	{0x0000a7d4, 0x00000004},
+	{0x0000a7dc, 0x00000001},
+	{0x0000a7f0, 0x80000000},
+};
+
+static const u32 ar9565_1p0_baseband_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00009810, 0xd00a8005, 0xd00a8005, 0xd00a8005, 0xd00a800d},
+	{0x00009820, 0x206a022e, 0x206a022e, 0x206a012e, 0x206a01ae},
+	{0x00009824, 0x5ac640d0, 0x5ac640d0, 0x5ac640d0, 0x63c640da},
+	{0x00009828, 0x06903081, 0x06903081, 0x06903881, 0x09143c81},
+	{0x0000982c, 0x05eea6d4, 0x05eea6d4, 0x05eea6d4, 0x05eea6d4},
+	{0x00009830, 0x0000059c, 0x0000059c, 0x0000059c, 0x0000059c},
+	{0x00009c00, 0x000000c4, 0x000000c4, 0x000000c4, 0x000000c4},
+	{0x00009e00, 0x0372111a, 0x0372111a, 0x037216a0, 0x037216a0},
+	{0x00009e04, 0x00802020, 0x00802020, 0x00802020, 0x00802020},
+	{0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000e2, 0x6c4000d8},
+	{0x00009e10, 0x7ec88d2e, 0x7ec88d2e, 0x7ec84d2e, 0x7ec86d2e},
+	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3379605e, 0x33795d5e},
+	{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
+	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+	{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
+	{0x00009e3c, 0xcf946222, 0xcf946222, 0xcf946222, 0xcf946222},
+	{0x00009e44, 0xfe321e27, 0xfe321e27, 0xfe291e27, 0xfe291e27},
+	{0x00009e48, 0x5030201a, 0x5030201a, 0x50302012, 0x50302012},
+	{0x00009fc8, 0x0003f000, 0x0003f000, 0x0001a000, 0x0001a000},
+	{0x0000a204, 0x07318fc0, 0x07318fc4, 0x07318fc4, 0x07318fc0},
+	{0x0000a208, 0x00000104, 0x00000104, 0x00000004, 0x00000004},
+	{0x0000a22c, 0x01026a2f, 0x01026a27, 0x01026a2f, 0x01026a2f},
+	{0x0000a230, 0x0000400a, 0x00004014, 0x00004016, 0x0000400b},
+	{0x0000a234, 0x00000fff, 0x10000fff, 0x10000fff, 0x00000fff},
+	{0x0000a238, 0xffb81018, 0xffb81018, 0xffb81018, 0xffb81018},
+	{0x0000a250, 0x00000000, 0x00000000, 0x00000210, 0x00000108},
+	{0x0000a254, 0x000007d0, 0x00000fa0, 0x00001130, 0x00000898},
+	{0x0000a258, 0x02020002, 0x02020002, 0x02020002, 0x02020002},
+	{0x0000a25c, 0x01000e0e, 0x01000e0e, 0x01000e0e, 0x01000e0e},
+	{0x0000a260, 0x0a021501, 0x0a021501, 0x3a021501, 0x3a021501},
+	{0x0000a264, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e},
+	{0x0000a280, 0x00000007, 0x00000007, 0x0000000b, 0x0000000b},
+	{0x0000a284, 0x00000000, 0x00000000, 0x00000150, 0x00000150},
+	{0x0000a288, 0x00100510, 0x00100510, 0x00100510, 0x00100510},
+	{0x0000a28c, 0x00021551, 0x00021551, 0x00021551, 0x00021551},
+	{0x0000a2c4, 0x00058d18, 0x00058d18, 0x00058d18, 0x00058d18},
+	{0x0000a2d0, 0x00071982, 0x00071982, 0x00071982, 0x00071982},
+	{0x0000a2d8, 0x7999a83b, 0x7999a83b, 0x7999a83b, 0x7999a83b},
+	{0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000ae04, 0x00800000, 0x00800000, 0x00800000, 0x00800000},
+	{0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+};
+
+static const u32 ar9565_1p0_radio_core[][2] = {
+	/* Addr      allmodes  */
+	{0x00016000, 0x36db6db6},
+	{0x00016004, 0x6db6db40},
+	{0x00016008, 0x73f00000},
+	{0x0001600c, 0x00000000},
+	{0x00016010, 0x6d823601},
+	{0x00016040, 0x7f80fff8},
+	{0x0001604c, 0x1c99e04f},
+	{0x00016050, 0x6db6db6c},
+	{0x00016058, 0x6c200000},
+	{0x00016080, 0x000c0000},
+	{0x00016084, 0x9a68048c},
+	{0x00016088, 0x54214514},
+	{0x0001608c, 0x1203040b},
+	{0x00016090, 0x24926490},
+	{0x00016098, 0xd28b3330},
+	{0x000160a0, 0x0a108ffe},
+	{0x000160a4, 0x812fc491},
+	{0x000160a8, 0x423c8000},
+	{0x000160b4, 0x92000000},
+	{0x000160b8, 0x0285dddc},
+	{0x000160bc, 0x02908888},
+	{0x000160c0, 0x006db6d0},
+	{0x000160c4, 0x6dd6db60},
+	{0x000160c8, 0x6db6db6c},
+	{0x000160cc, 0x6de6c1b0},
+	{0x00016100, 0x3fffbe04},
+	{0x00016104, 0xfff80000},
+	{0x00016108, 0x00200400},
+	{0x00016110, 0x00000000},
+	{0x00016144, 0x02084080},
+	{0x00016148, 0x000080c0},
+	{0x00016280, 0x050a0001},
+	{0x00016284, 0x3d841440},
+	{0x00016288, 0x00000000},
+	{0x0001628c, 0xe3000000},
+	{0x00016290, 0xa1004080},
+	{0x00016294, 0x40000028},
+	{0x00016298, 0x55aa2900},
+	{0x00016340, 0x131c827a},
+	{0x00016344, 0x00300000},
+};
+
+static const u32 ar9565_1p0_radio_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x0001609c, 0x0b8ee524, 0x0b8ee524, 0x0b8ee524, 0x0b8ee524},
+	{0x000160ac, 0xa4646c08, 0xa4646c08, 0xa4646c08, 0xa4646c08},
+	{0x000160b0, 0x01d67f70, 0x01d67f70, 0x01d67f70, 0x01d67f70},
+	{0x0001610c, 0x40000000, 0x40000000, 0x40000000, 0x40000000},
+	{0x00016140, 0x10804008, 0x10804008, 0x50804008, 0x50804008},
+};
+
+static const u32 ar9565_1p0_soc_preamble[][2] = {
+	/* Addr      allmodes  */
+	{0x00004078, 0x00000002},
+	{0x000040a4, 0x00a0c9c9},
+	{0x00007020, 0x00000000},
+	{0x00007034, 0x00000002},
+	{0x00007038, 0x000004c2},
+};
+
+static const u32 ar9565_1p0_soc_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00007010, 0x00002233, 0x00002233, 0x00002233, 0x00002233},
+};
+
+static const u32 ar9565_1p0_Common_rx_gain_table[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x01910190},
+	{0x0000a030, 0x01930192},
+	{0x0000a034, 0x01950194},
+	{0x0000a038, 0x038a0196},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x22222229},
+	{0x0000a084, 0x1d1d1d1d},
+	{0x0000a088, 0x1d1d1d1d},
+	{0x0000a08c, 0x1d1d1d1d},
+	{0x0000a090, 0x171d1d1d},
+	{0x0000a094, 0x11111717},
+	{0x0000a098, 0x00030311},
+	{0x0000a09c, 0x00000000},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x001f0000},
+	{0x0000a0c4, 0x01000101},
+	{0x0000a0c8, 0x011e011f},
+	{0x0000a0cc, 0x011c011d},
+	{0x0000a0d0, 0x02030204},
+	{0x0000a0d4, 0x02010202},
+	{0x0000a0d8, 0x021f0200},
+	{0x0000a0dc, 0x0302021e},
+	{0x0000a0e0, 0x03000301},
+	{0x0000a0e4, 0x031e031f},
+	{0x0000a0e8, 0x0402031d},
+	{0x0000a0ec, 0x04000401},
+	{0x0000a0f0, 0x041e041f},
+	{0x0000a0f4, 0x0502041d},
+	{0x0000a0f8, 0x05000501},
+	{0x0000a0fc, 0x051e051f},
+	{0x0000a100, 0x06010602},
+	{0x0000a104, 0x061f0600},
+	{0x0000a108, 0x061d061e},
+	{0x0000a10c, 0x07020703},
+	{0x0000a110, 0x07000701},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x001f0000},
+	{0x0000a144, 0x01000101},
+	{0x0000a148, 0x011e011f},
+	{0x0000a14c, 0x011c011d},
+	{0x0000a150, 0x02030204},
+	{0x0000a154, 0x02010202},
+	{0x0000a158, 0x021f0200},
+	{0x0000a15c, 0x0302021e},
+	{0x0000a160, 0x03000301},
+	{0x0000a164, 0x031e031f},
+	{0x0000a168, 0x0402031d},
+	{0x0000a16c, 0x04000401},
+	{0x0000a170, 0x041e041f},
+	{0x0000a174, 0x0502041d},
+	{0x0000a178, 0x05000501},
+	{0x0000a17c, 0x051e051f},
+	{0x0000a180, 0x06010602},
+	{0x0000a184, 0x061f0600},
+	{0x0000a188, 0x061d061e},
+	{0x0000a18c, 0x07020703},
+	{0x0000a190, 0x07000701},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x32323232},
+	{0x0000b084, 0x2f2f3232},
+	{0x0000b088, 0x23282a2d},
+	{0x0000b08c, 0x1c1e2123},
+	{0x0000b090, 0x14171919},
+	{0x0000b094, 0x0e0e1214},
+	{0x0000b098, 0x03050707},
+	{0x0000b09c, 0x00030303},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
+static const u32 ar9565_1p0_Modes_lowest_ob_db_tx_gain_table[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x0000a2dc, 0xfc0a9380, 0xfc0a9380, 0xfdab5b52, 0xfdab5b52},
+	{0x0000a2e0, 0xffecec00, 0xffecec00, 0xfd339c84, 0xfd339c84},
+	{0x0000a2e4, 0xfc0f0000, 0xfc0f0000, 0xfec3e000, 0xfec3e000},
+	{0x0000a2e8, 0xfc100000, 0xfc100000, 0xfffc0000, 0xfffc0000},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+	{0x0000a500, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06000003, 0x06000003, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a000020, 0x0a000020, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x10000023, 0x10000023, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x16000220, 0x16000220, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x1c000223, 0x1c000223, 0x12000400, 0x12000400},
+	{0x0000a518, 0x21020220, 0x21020220, 0x16000402, 0x16000402},
+	{0x0000a51c, 0x27020223, 0x27020223, 0x19000404, 0x19000404},
+	{0x0000a520, 0x2b022220, 0x2b022220, 0x1c000603, 0x1c000603},
+	{0x0000a524, 0x2f022222, 0x2f022222, 0x21000a02, 0x21000a02},
+	{0x0000a528, 0x34022225, 0x34022225, 0x25000a04, 0x25000a04},
+	{0x0000a52c, 0x3a02222a, 0x3a02222a, 0x28000a20, 0x28000a20},
+	{0x0000a530, 0x3e02222c, 0x3e02222c, 0x2c000e20, 0x2c000e20},
+	{0x0000a534, 0x4202242a, 0x4202242a, 0x30000e22, 0x30000e22},
+	{0x0000a538, 0x4702244a, 0x4702244a, 0x34000e24, 0x34000e24},
+	{0x0000a53c, 0x4b02244c, 0x4b02244c, 0x38001640, 0x38001640},
+	{0x0000a540, 0x4e02246c, 0x4e02246c, 0x3c001660, 0x3c001660},
+	{0x0000a544, 0x5302266c, 0x5302266c, 0x3f001861, 0x3f001861},
+	{0x0000a548, 0x5702286c, 0x5702286c, 0x43001a81, 0x43001a81},
+	{0x0000a54c, 0x5c04286b, 0x5c04286b, 0x47001a83, 0x47001a83},
+	{0x0000a550, 0x61042a6c, 0x61042a6c, 0x4a001c84, 0x4a001c84},
+	{0x0000a554, 0x66062a6c, 0x66062a6c, 0x4e001ce3, 0x4e001ce3},
+	{0x0000a558, 0x6b062e6c, 0x6b062e6c, 0x52001ce5, 0x52001ce5},
+	{0x0000a55c, 0x7006308c, 0x7006308c, 0x56001ce9, 0x56001ce9},
+	{0x0000a560, 0x730a308a, 0x730a308a, 0x5a001ceb, 0x5a001ceb},
+	{0x0000a564, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a568, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a56c, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a570, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a574, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a578, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a57c, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a618, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a61c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a620, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a624, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a628, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a62c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a630, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a634, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a638, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a63c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016044, 0x012482d4, 0x012482d4, 0x012482d4, 0x012482d4},
+	{0x00016048, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016054, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+};
+
+static const u32 ar9565_1p0_pciephy_pll_on_clkreq_disable_L1[][2] = {
+	/* Addr      allmodes  */
+	{0x00018c00, 0x18212ede},
+	{0x00018c04, 0x000801d8},
+	{0x00018c08, 0x0003780c},
+};
+
+static const u32 ar9565_1p0_modes_fast_clock[][3] = {
+	/* Addr      5G_HT20     5G_HT40   */
+	{0x00001030, 0x00000268, 0x000004d0},
+	{0x00001070, 0x0000018c, 0x00000318},
+	{0x000010b0, 0x00000fd0, 0x00001fa0},
+	{0x00008014, 0x044c044c, 0x08980898},
+	{0x0000801c, 0x148ec02b, 0x148ec057},
+	{0x00008318, 0x000044c0, 0x00008980},
+	{0x00009e00, 0x03721821, 0x03721821},
+	{0x0000a230, 0x0000400b, 0x00004016},
+	{0x0000a254, 0x00000898, 0x00001130},
+};
+
+static const u32 ar9565_1p0_common_wo_xlna_rx_gain_table[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x03820190},
+	{0x0000a030, 0x03840383},
+	{0x0000a034, 0x03880385},
+	{0x0000a038, 0x038a0389},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x29292929},
+	{0x0000a084, 0x29292929},
+	{0x0000a088, 0x29292929},
+	{0x0000a08c, 0x29292929},
+	{0x0000a090, 0x22292929},
+	{0x0000a094, 0x1d1d2222},
+	{0x0000a098, 0x0c111117},
+	{0x0000a09c, 0x00030303},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x00bf00a0},
+	{0x0000a0c4, 0x11a011a1},
+	{0x0000a0c8, 0x11be11bf},
+	{0x0000a0cc, 0x11bc11bd},
+	{0x0000a0d0, 0x22632264},
+	{0x0000a0d4, 0x22612262},
+	{0x0000a0d8, 0x227f2260},
+	{0x0000a0dc, 0x4322227e},
+	{0x0000a0e0, 0x43204321},
+	{0x0000a0e4, 0x433e433f},
+	{0x0000a0e8, 0x4462433d},
+	{0x0000a0ec, 0x44604461},
+	{0x0000a0f0, 0x447e447f},
+	{0x0000a0f4, 0x5582447d},
+	{0x0000a0f8, 0x55805581},
+	{0x0000a0fc, 0x559e559f},
+	{0x0000a100, 0x66816682},
+	{0x0000a104, 0x669f6680},
+	{0x0000a108, 0x669d669e},
+	{0x0000a10c, 0x77627763},
+	{0x0000a110, 0x77607761},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x00bf00a0},
+	{0x0000a144, 0x11a011a1},
+	{0x0000a148, 0x11be11bf},
+	{0x0000a14c, 0x11bc11bd},
+	{0x0000a150, 0x22632264},
+	{0x0000a154, 0x22612262},
+	{0x0000a158, 0x227f2260},
+	{0x0000a15c, 0x4322227e},
+	{0x0000a160, 0x43204321},
+	{0x0000a164, 0x433e433f},
+	{0x0000a168, 0x4462433d},
+	{0x0000a16c, 0x44604461},
+	{0x0000a170, 0x447e447f},
+	{0x0000a174, 0x5582447d},
+	{0x0000a178, 0x55805581},
+	{0x0000a17c, 0x559e559f},
+	{0x0000a180, 0x66816682},
+	{0x0000a184, 0x669f6680},
+	{0x0000a188, 0x669d669e},
+	{0x0000a18c, 0x77627763},
+	{0x0000a190, 0x77607761},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x32323232},
+	{0x0000b084, 0x2f2f3232},
+	{0x0000b088, 0x23282a2d},
+	{0x0000b08c, 0x1c1e2123},
+	{0x0000b090, 0x14171919},
+	{0x0000b094, 0x0e0e1214},
+	{0x0000b098, 0x03050707},
+	{0x0000b09c, 0x00030303},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
+static const u32 ar9565_1p0_modes_low_ob_db_tx_gain_table[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x0000a2dc, 0xfc0a9380, 0xfc0a9380, 0xfdab5b52, 0xfdab5b52},
+	{0x0000a2e0, 0xffecec00, 0xffecec00, 0xfd339c84, 0xfd339c84},
+	{0x0000a2e4, 0xfc0f0000, 0xfc0f0000, 0xfec3e000, 0xfec3e000},
+	{0x0000a2e8, 0xfc100000, 0xfc100000, 0xfffc0000, 0xfffc0000},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+	{0x0000a500, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06000003, 0x06000003, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a000020, 0x0a000020, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x10000023, 0x10000023, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x16000220, 0x16000220, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x1c000223, 0x1c000223, 0x12000400, 0x12000400},
+	{0x0000a518, 0x21020220, 0x21020220, 0x16000402, 0x16000402},
+	{0x0000a51c, 0x27020223, 0x27020223, 0x19000404, 0x19000404},
+	{0x0000a520, 0x2b022220, 0x2b022220, 0x1c000603, 0x1c000603},
+	{0x0000a524, 0x2f022222, 0x2f022222, 0x21000a02, 0x21000a02},
+	{0x0000a528, 0x34022225, 0x34022225, 0x25000a04, 0x25000a04},
+	{0x0000a52c, 0x3a02222a, 0x3a02222a, 0x28000a20, 0x28000a20},
+	{0x0000a530, 0x3e02222c, 0x3e02222c, 0x2c000e20, 0x2c000e20},
+	{0x0000a534, 0x4202242a, 0x4202242a, 0x30000e22, 0x30000e22},
+	{0x0000a538, 0x4702244a, 0x4702244a, 0x34000e24, 0x34000e24},
+	{0x0000a53c, 0x4b02244c, 0x4b02244c, 0x38001640, 0x38001640},
+	{0x0000a540, 0x4e02246c, 0x4e02246c, 0x3c001660, 0x3c001660},
+	{0x0000a544, 0x5302266c, 0x5302266c, 0x3f001861, 0x3f001861},
+	{0x0000a548, 0x5702286c, 0x5702286c, 0x43001a81, 0x43001a81},
+	{0x0000a54c, 0x5c04286b, 0x5c04286b, 0x47001a83, 0x47001a83},
+	{0x0000a550, 0x61042a6c, 0x61042a6c, 0x4a001c84, 0x4a001c84},
+	{0x0000a554, 0x66062a6c, 0x66062a6c, 0x4e001ce3, 0x4e001ce3},
+	{0x0000a558, 0x6b062e6c, 0x6b062e6c, 0x52001ce5, 0x52001ce5},
+	{0x0000a55c, 0x7006308c, 0x7006308c, 0x56001ce9, 0x56001ce9},
+	{0x0000a560, 0x730a308a, 0x730a308a, 0x5a001ceb, 0x5a001ceb},
+	{0x0000a564, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a568, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a56c, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a570, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a574, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a578, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a57c, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a618, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a61c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a620, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a624, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a628, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a62c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a630, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a634, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a638, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a63c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016044, 0x012482d4, 0x012482d4, 0x012482d4, 0x012482d4},
+	{0x00016048, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016054, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+};
+
+static const u32 ar9565_1p0_modes_high_ob_db_tx_gain_table[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x0000a2dc, 0xfc0a9380, 0xfc0a9380, 0xfdab5b52, 0xfdab5b52},
+	{0x0000a2e0, 0xffecec00, 0xffecec00, 0xfd339c84, 0xfd339c84},
+	{0x0000a2e4, 0xfc0f0000, 0xfc0f0000, 0xfec3e000, 0xfec3e000},
+	{0x0000a2e8, 0xfc100000, 0xfc100000, 0xfffc0000, 0xfffc0000},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+	{0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0b022220, 0x0b022220, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x10022223, 0x10022223, 0x0c000200, 0x0c000200},
+	{0x0000a510, 0x15022620, 0x15022620, 0x10000202, 0x10000202},
+	{0x0000a514, 0x19022622, 0x19022622, 0x13000400, 0x13000400},
+	{0x0000a518, 0x1c022822, 0x1c022822, 0x17000402, 0x17000402},
+	{0x0000a51c, 0x21022842, 0x21022842, 0x1b000404, 0x1b000404},
+	{0x0000a520, 0x24022c41, 0x24022c41, 0x1e000603, 0x1e000603},
+	{0x0000a524, 0x29023042, 0x29023042, 0x23000a02, 0x23000a02},
+	{0x0000a528, 0x2d023044, 0x2d023044, 0x27000a04, 0x27000a04},
+	{0x0000a52c, 0x31023644, 0x31023644, 0x2a000a20, 0x2a000a20},
+	{0x0000a530, 0x36025643, 0x36025643, 0x2e000e20, 0x2e000e20},
+	{0x0000a534, 0x3a025a44, 0x3a025a44, 0x32000e22, 0x32000e22},
+	{0x0000a538, 0x3d025e45, 0x3d025e45, 0x36000e24, 0x36000e24},
+	{0x0000a53c, 0x43025e4a, 0x43025e4a, 0x3a001640, 0x3a001640},
+	{0x0000a540, 0x4a025e6c, 0x4a025e6c, 0x3e001660, 0x3e001660},
+	{0x0000a544, 0x50025e8e, 0x50025e8e, 0x41001861, 0x41001861},
+	{0x0000a548, 0x56025eb2, 0x56025eb2, 0x45001a81, 0x45001a81},
+	{0x0000a54c, 0x5c025eb5, 0x5c025eb5, 0x49001a83, 0x49001a83},
+	{0x0000a550, 0x62025ef6, 0x62025ef6, 0x4c001c84, 0x4c001c84},
+	{0x0000a554, 0x65025f56, 0x65025f56, 0x4f001ce3, 0x4f001ce3},
+	{0x0000a558, 0x69027f56, 0x69027f56, 0x53001ce5, 0x53001ce5},
+	{0x0000a55c, 0x6d029f56, 0x6d029f56, 0x57001ce9, 0x57001ce9},
+	{0x0000a560, 0x73049f56, 0x73049f56, 0x5b001ceb, 0x5b001ceb},
+	{0x0000a564, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a568, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a56c, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a570, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a574, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a578, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a57c, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00804000, 0x00804000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00804201, 0x00804201, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00804201, 0x00804201, 0x01404000, 0x01404000},
+	{0x0000a618, 0x00804201, 0x00804201, 0x01404501, 0x01404501},
+	{0x0000a61c, 0x02008201, 0x02008201, 0x02008501, 0x02008501},
+	{0x0000a620, 0x02c10a03, 0x02c10a03, 0x0280ca03, 0x0280ca03},
+	{0x0000a624, 0x04815205, 0x04815205, 0x02c10b04, 0x02c10b04},
+	{0x0000a628, 0x0581d406, 0x0581d406, 0x03814b04, 0x03814b04},
+	{0x0000a62c, 0x0581d607, 0x0581d607, 0x05018e05, 0x05018e05},
+	{0x0000a630, 0x0581d607, 0x0581d607, 0x05019406, 0x05019406},
+	{0x0000a634, 0x0581d607, 0x0581d607, 0x05019406, 0x05019406},
+	{0x0000a638, 0x0581d607, 0x0581d607, 0x05019406, 0x05019406},
+	{0x0000a63c, 0x0581d607, 0x0581d607, 0x05019406, 0x05019406},
+	{0x00016044, 0x056d82e4, 0x056d82e4, 0x056d82e4, 0x056d82e4},
+	{0x00016048, 0x8db49060, 0x8db49060, 0x8db49060, 0x8db49060},
+	{0x00016054, 0x6db60000, 0x6db60000, 0x6db60000, 0x6db60000},
+};
+
+static const u32 ar9565_1p0_modes_high_power_tx_gain_table[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x0000a2dc, 0xfc0a9380, 0xfc0a9380, 0xfdab5b52, 0xfdab5b52},
+	{0x0000a2e0, 0xffecec00, 0xffecec00, 0xfd339c84, 0xfd339c84},
+	{0x0000a2e4, 0xfc0f0000, 0xfc0f0000, 0xfec3e000, 0xfec3e000},
+	{0x0000a2e8, 0xfc100000, 0xfc100000, 0xfffc0000, 0xfffc0000},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+	{0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a022220, 0x0a022220, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x0f022223, 0x0f022223, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x14022620, 0x14022620, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x18022622, 0x18022622, 0x11000400, 0x11000400},
+	{0x0000a518, 0x1b022822, 0x1b022822, 0x15000402, 0x15000402},
+	{0x0000a51c, 0x20022842, 0x20022842, 0x19000404, 0x19000404},
+	{0x0000a520, 0x22022c41, 0x22022c41, 0x1b000603, 0x1b000603},
+	{0x0000a524, 0x28023042, 0x28023042, 0x1f000a02, 0x1f000a02},
+	{0x0000a528, 0x2c023044, 0x2c023044, 0x23000a04, 0x23000a04},
+	{0x0000a52c, 0x2f023644, 0x2f023644, 0x26000a20, 0x26000a20},
+	{0x0000a530, 0x34025643, 0x34025643, 0x2a000e20, 0x2a000e20},
+	{0x0000a534, 0x38025a44, 0x38025a44, 0x2e000e22, 0x2e000e22},
+	{0x0000a538, 0x3b025e45, 0x3b025e45, 0x31000e24, 0x31000e24},
+	{0x0000a53c, 0x41025e4a, 0x41025e4a, 0x34001640, 0x34001640},
+	{0x0000a540, 0x48025e6c, 0x48025e6c, 0x38001660, 0x38001660},
+	{0x0000a544, 0x4e025e8e, 0x4e025e8e, 0x3b001861, 0x3b001861},
+	{0x0000a548, 0x53025eb2, 0x53025eb2, 0x3e001a81, 0x3e001a81},
+	{0x0000a54c, 0x59025eb5, 0x59025eb5, 0x42001a83, 0x42001a83},
+	{0x0000a550, 0x5f025ef6, 0x5f025ef6, 0x44001c84, 0x44001c84},
+	{0x0000a554, 0x62025f56, 0x62025f56, 0x48001ce3, 0x48001ce3},
+	{0x0000a558, 0x66027f56, 0x66027f56, 0x4c001ce5, 0x4c001ce5},
+	{0x0000a55c, 0x6a029f56, 0x6a029f56, 0x50001ce9, 0x50001ce9},
+	{0x0000a560, 0x70049f56, 0x70049f56, 0x54001ceb, 0x54001ceb},
+	{0x0000a564, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a568, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a56c, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a570, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a574, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a578, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a57c, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a618, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a61c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a620, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a624, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a628, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a62c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a630, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a634, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a638, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a63c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016044, 0x056d82e6, 0x056d82e6, 0x056d82e6, 0x056d82e6},
+	{0x00016048, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016054, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+};
+
+#endif /* INITVALS_9565_1P0_H */
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index b09285c36c4..dfe6a4707fd 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -173,6 +173,8 @@ void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd,
 
 #define ATH_AN_2_TID(_an, _tidno)  (&(_an)->tid[(_tidno)])
 
+#define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
+
 #define ATH_TX_COMPLETE_POLL_INT	1000
 
 enum ATH_AGGR_STATUS {
@@ -280,6 +282,7 @@ struct ath_tx_control {
 	struct ath_txq *txq;
 	struct ath_node *an;
 	u8 paprd;
+	struct ieee80211_sta *sta;
 };
 
 #define ATH_TX_ERROR        0x01
@@ -422,7 +425,6 @@ void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
 void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif);
 void ath9k_set_beacon(struct ath_softc *sc);
-void ath9k_set_beaconing_status(struct ath_softc *sc, bool status);
 
 /*******************/
 /* Link Monitoring */
@@ -472,7 +474,7 @@ struct ath_btcoex {
 	unsigned long op_flags;
 	int bt_stomp_type; /* Types of BT stomping */
 	u32 btcoex_no_stomp; /* in usec */
-	u32 btcoex_period; /* in usec */
+	u32 btcoex_period; /* in msec */
 	u32 btscan_no_stomp; /* in usec */
 	u32 duty_cycle;
 	u32 bt_wait_time;
@@ -537,6 +539,7 @@ struct ath9k_wow_pattern {
 #ifdef CONFIG_MAC80211_LEDS
 void ath_init_leds(struct ath_softc *sc);
 void ath_deinit_leds(struct ath_softc *sc);
+void ath_fill_led_pin(struct ath_softc *sc);
 #else
 static inline void ath_init_leds(struct ath_softc *sc)
 {
@@ -545,6 +548,9 @@ static inline void ath_init_leds(struct ath_softc *sc)
 static inline void ath_deinit_leds(struct ath_softc *sc)
 {
 }
+static inline void ath_fill_led_pin(struct ath_softc *sc)
+{
+}
 #endif
 
 /*******************************/
@@ -596,8 +602,6 @@ struct ath_ant_comb {
 	int main_conf;
 	enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
 	enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
-	int first_bias;
-	int second_bias;
 	bool first_ratio;
 	bool second_ratio;
 	unsigned long scan_start_time;
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index acd437384fe..419e9a3f2fe 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -43,8 +43,8 @@ static const u32 ar9003_wlan_weights[ATH_BTCOEX_STOMP_MAX]
 	{ 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* STOMP_NONE */
 };
 
-static const u32 ar9462_wlan_weights[ATH_BTCOEX_STOMP_MAX]
-				    [AR9300_NUM_WLAN_WEIGHTS] = {
+static const u32 mci_wlan_weights[ATH_BTCOEX_STOMP_MAX]
+				 [AR9300_NUM_WLAN_WEIGHTS] = {
 	{ 0x01017d01, 0x41414101, 0x41414101, 0x41414141 }, /* STOMP_ALL */
 	{ 0x01017d01, 0x3b3b3b01, 0x3b3b3b01, 0x3b3b3b3b }, /* STOMP_LOW */
 	{ 0x01017d01, 0x01010101, 0x01010101, 0x01010101 }, /* STOMP_NONE */
@@ -208,14 +208,37 @@ static void ath9k_hw_btcoex_enable_2wire(struct ath_hw *ah)
 			    AR_GPIO_OUTPUT_MUX_AS_TX_FRAME);
 }
 
+/*
+ * For AR9002, bt_weight/wlan_weight are used.
+ * For AR9003 and above, stomp_type is used.
+ */
 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 				u32 bt_weight,
-				u32 wlan_weight)
+				u32 wlan_weight,
+				enum ath_stomp_type stomp_type)
 {
 	struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
-	btcoex_hw->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
-				     SM(wlan_weight, AR_BTCOEX_WL_WGHT);
+	if (AR_SREV_9300_20_OR_LATER(ah)) {
+		const u32 *weight = ar9003_wlan_weights[stomp_type];
+		int i;
+
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+			if ((stomp_type == ATH_BTCOEX_STOMP_LOW) &&
+			    btcoex_hw->mci.stomp_ftp)
+				stomp_type = ATH_BTCOEX_STOMP_LOW_FTP;
+			weight = mci_wlan_weights[stomp_type];
+		}
+
+		for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) {
+			btcoex_hw->bt_weight[i] = AR9300_BT_WGHT;
+			btcoex_hw->wlan_weight[i] = weight[i];
+		}
+	} else {
+		btcoex_hw->bt_coex_weights =
+			SM(bt_weight, AR_BTCOEX_BT_WGHT) |
+			SM(wlan_weight, AR_BTCOEX_WL_WGHT);
+	}
 }
 EXPORT_SYMBOL(ath9k_hw_btcoex_set_weight);
 
@@ -282,7 +305,7 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah)
 		ath9k_hw_btcoex_enable_2wire(ah);
 		break;
 	case ATH_BTCOEX_CFG_3WIRE:
-		if (AR_SREV_9462(ah)) {
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 			ath9k_hw_btcoex_enable_mci(ah);
 			return;
 		}
@@ -304,7 +327,7 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
 	int i;
 
 	btcoex_hw->enabled = false;
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
 		for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
 			REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i),
@@ -332,26 +355,6 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
 }
 EXPORT_SYMBOL(ath9k_hw_btcoex_disable);
 
-static void ar9003_btcoex_bt_stomp(struct ath_hw *ah,
-			 enum ath_stomp_type stomp_type)
-{
-	struct ath_btcoex_hw *btcoex = &ah->btcoex_hw;
-	const u32 *weight = ar9003_wlan_weights[stomp_type];
-	int i;
-
-	if (AR_SREV_9462(ah)) {
-		if ((stomp_type == ATH_BTCOEX_STOMP_LOW) &&
-		    btcoex->mci.stomp_ftp)
-			stomp_type = ATH_BTCOEX_STOMP_LOW_FTP;
-		weight = ar9462_wlan_weights[stomp_type];
-	}
-
-	for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) {
-		btcoex->bt_weight[i] = AR9300_BT_WGHT;
-		btcoex->wlan_weight[i] = weight[i];
-	}
-}
-
 /*
  * Configures appropriate weight based on stomp type.
  */
@@ -359,22 +362,22 @@ void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 			      enum ath_stomp_type stomp_type)
 {
 	if (AR_SREV_9300_20_OR_LATER(ah)) {
-		ar9003_btcoex_bt_stomp(ah, stomp_type);
+		ath9k_hw_btcoex_set_weight(ah, 0, 0, stomp_type);
 		return;
 	}
 
 	switch (stomp_type) {
 	case ATH_BTCOEX_STOMP_ALL:
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-				AR_STOMP_ALL_WLAN_WGHT);
+					   AR_STOMP_ALL_WLAN_WGHT, 0);
 		break;
 	case ATH_BTCOEX_STOMP_LOW:
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-				AR_STOMP_LOW_WLAN_WGHT);
+					   AR_STOMP_LOW_WLAN_WGHT, 0);
 		break;
 	case ATH_BTCOEX_STOMP_NONE:
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-				AR_STOMP_NONE_WLAN_WGHT);
+					   AR_STOMP_NONE_WLAN_WGHT, 0);
 		break;
 	default:
 		ath_dbg(ath9k_hw_common(ah), BTCOEX, "Invalid Stomptype\n");
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h
index 20092f98658..385197ad79b 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.h
+++ b/drivers/net/wireless/ath/ath9k/btcoex.h
@@ -107,7 +107,8 @@ void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 				u32 bt_weight,
-				u32 wlan_weight);
+				u32 wlan_weight,
+				enum ath_stomp_type stomp_type);
 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 			      enum ath_stomp_type stomp_type);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 68b643c8943..6727b566d29 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -222,6 +222,57 @@ static const struct file_operations fops_disable_ani = {
 	.llseek = default_llseek,
 };
 
+static ssize_t read_file_ant_diversity(struct file *file, char __user *user_buf,
+				       size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	char buf[32];
+	unsigned int len;
+
+	len = sprintf(buf, "%d\n", common->antenna_diversity);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_ant_diversity(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	unsigned long antenna_diversity;
+	char buf[32];
+	ssize_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+
+	if (!AR_SREV_9565(sc->sc_ah))
+		goto exit;
+
+	buf[len] = '\0';
+	if (strict_strtoul(buf, 0, &antenna_diversity))
+		return -EINVAL;
+
+	common->antenna_diversity = !!antenna_diversity;
+	ath9k_ps_wakeup(sc);
+	ath_ant_comb_update(sc);
+	ath_dbg(common, CONFIG, "Antenna diversity: %d\n",
+		common->antenna_diversity);
+	ath9k_ps_restore(sc);
+exit:
+	return count;
+}
+
+static const struct file_operations fops_ant_diversity = {
+	.read = read_file_ant_diversity,
+	.write = write_file_ant_diversity,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
 {
@@ -373,6 +424,8 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 		sc->debug.stats.istats.tsfoor++;
 	if (status & ATH9K_INT_MCI)
 		sc->debug.stats.istats.mci++;
+	if (status & ATH9K_INT_GENTIMER)
+		sc->debug.stats.istats.gen_timer++;
 }
 
 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
@@ -418,6 +471,7 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 	PR_IS("DTIM", dtim);
 	PR_IS("TSFOOR", tsfoor);
 	PR_IS("MCI", mci);
+	PR_IS("GENTIMER", gen_timer);
 	PR_IS("TOTAL", total);
 
 	len += snprintf(buf + len, mxlen - len,
@@ -1577,6 +1631,8 @@ int ath9k_init_debug(struct ath_hw *ah)
 			    sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
 	debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
 			    sc->debug.debugfs_phy, sc, &fops_disable_ani);
+	debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+			    &sc->sc_ah->config.enable_paprd);
 	debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
 			    sc, &fops_regidx);
 	debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
@@ -1596,12 +1652,12 @@ int ath9k_init_debug(struct ath_hw *ah)
 	debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
 			    &fops_samps);
 #endif
-
 	debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
-
 	debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
+	debugfs_create_file("diversity", S_IRUSR | S_IWUSR,
+			    sc->debug.debugfs_phy, sc, &fops_ant_diversity);
 
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 8b9d080d89d..2ed9785a38f 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -41,7 +41,6 @@ enum ath_reset_type {
 	RESET_TYPE_PLL_HANG,
 	RESET_TYPE_MAC_HANG,
 	RESET_TYPE_BEACON_STUCK,
-	RESET_TYPE_MCI,
 	__RESET_TYPE_MAX
 };
 
@@ -74,6 +73,8 @@ enum ath_reset_type {
  * from a beacon differs from the PCU's internal TSF by more than a
  * (programmable) threshold
  * @local_timeout: Internal bus timeout.
+ * @mci: MCI interrupt, specific to MCI based BTCOEX chipsets
+ * @gen_timer: Generic hardware timer interrupt
  */
 struct ath_interrupt_stats {
 	u32 total;
@@ -100,6 +101,7 @@ struct ath_interrupt_stats {
 	u32 bb_watchdog;
 	u32 tsfoor;
 	u32 mci;
+	u32 gen_timer;
 
 	/* Sync-cause stats */
 	u32 sync_cause_all;
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
index 484b3130590..319c651fa6c 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -96,6 +96,7 @@
 
 #define ATH9K_POW_SM(_r, _s)	(((_r) & 0x3f) << (_s))
 #define FREQ2FBIN(x, y)		((y) ? ((x) - 2300) : (((x) - 4800) / 5))
+#define FBIN2FREQ(x, y)		((y) ? (2300 + x) : (4800 + 5 * x))
 #define ath9k_hw_use_flash(_ah)	(!(_ah->ah_flags & AH_USE_EEPROM))
 
 #define AR5416_VER_MASK (eep->baseEepHeader.version & AR5416_EEP_VER_MINOR_MASK)
@@ -108,7 +109,7 @@
 #define EEP_RFSILENT_ENABLED_S      0
 #define EEP_RFSILENT_POLARITY       0x0002
 #define EEP_RFSILENT_POLARITY_S     1
-#define EEP_RFSILENT_GPIO_SEL       (AR_SREV_9462(ah) ? 0x00fc : 0x001c)
+#define EEP_RFSILENT_GPIO_SEL       ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x00fc : 0x001c)
 #define EEP_RFSILENT_GPIO_SEL_S     2
 
 #define AR5416_OPFLAGS_11A           0x01
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index bacdb8fb4ef..d9ed141a053 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -44,25 +44,6 @@ void ath_init_leds(struct ath_softc *sc)
 	if (AR_SREV_9100(sc->sc_ah))
 		return;
 
-	if (sc->sc_ah->led_pin < 0) {
-		if (AR_SREV_9287(sc->sc_ah))
-			sc->sc_ah->led_pin = ATH_LED_PIN_9287;
-		else if (AR_SREV_9485(sc->sc_ah))
-			sc->sc_ah->led_pin = ATH_LED_PIN_9485;
-		else if (AR_SREV_9300(sc->sc_ah))
-			sc->sc_ah->led_pin = ATH_LED_PIN_9300;
-		else if (AR_SREV_9462(sc->sc_ah))
-			sc->sc_ah->led_pin = ATH_LED_PIN_9462;
-		else
-			sc->sc_ah->led_pin = ATH_LED_PIN_DEF;
-	}
-
-	/* Configure gpio 1 for output */
-	ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin,
-			    AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-	/* LED off, active low */
-	ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
-
 	if (!led_blink)
 		sc->led_cdev.default_trigger =
 			ieee80211_get_radio_led_name(sc->hw);
@@ -78,6 +59,31 @@ void ath_init_leds(struct ath_softc *sc)
 
 	sc->led_registered = true;
 }
+
+void ath_fill_led_pin(struct ath_softc *sc)
+{
+	struct ath_hw *ah = sc->sc_ah;
+
+	if (AR_SREV_9100(ah) || (ah->led_pin >= 0))
+		return;
+
+	if (AR_SREV_9287(ah))
+		ah->led_pin = ATH_LED_PIN_9287;
+	else if (AR_SREV_9485(sc->sc_ah))
+		ah->led_pin = ATH_LED_PIN_9485;
+	else if (AR_SREV_9300(sc->sc_ah))
+		ah->led_pin = ATH_LED_PIN_9300;
+	else if (AR_SREV_9462(sc->sc_ah) || AR_SREV_9565(sc->sc_ah))
+		ah->led_pin = ATH_LED_PIN_9462;
+	else
+		ah->led_pin = ATH_LED_PIN_DEF;
+
+	/* Configure gpio 1 for output */
+	ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+
+	/* LED off, active low */
+	ath9k_hw_set_gpio(ah, ah->led_pin, 1);
+}
 #endif
 
 /*******************/
@@ -228,7 +234,12 @@ static void ath_btcoex_period_timer(unsigned long data)
 	ath9k_hw_btcoex_enable(ah);
 	spin_unlock_bh(&btcoex->btcoex_lock);
 
-	if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) {
+	/*
+	 * btcoex_period is in msec while (btocex/btscan_)no_stomp are in usec,
+	 * ensure that we properly convert btcoex_period to usec
+	 * for any comparision with (btcoex/btscan_)no_stomp.
+	 */
+	if (btcoex->btcoex_period * 1000 != btcoex->btcoex_no_stomp) {
 		if (btcoex->hw_timer_enabled)
 			ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);
 
@@ -309,8 +320,10 @@ void ath9k_btcoex_timer_resume(struct ath_softc *sc)
 	ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n");
 
 	/* make sure duty cycle timer is also stopped when resuming */
-	if (btcoex->hw_timer_enabled)
+	if (btcoex->hw_timer_enabled) {
 		ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
+		btcoex->hw_timer_enabled = false;
+	}
 
 	btcoex->bt_priority_cnt = 0;
 	btcoex->bt_priority_time = jiffies;
@@ -331,17 +344,20 @@ void ath9k_btcoex_timer_pause(struct ath_softc *sc)
 
 	del_timer_sync(&btcoex->period_timer);
 
-	if (btcoex->hw_timer_enabled)
+	if (btcoex->hw_timer_enabled) {
 		ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer);
-
-	btcoex->hw_timer_enabled = false;
+		btcoex->hw_timer_enabled = false;
+	}
 }
 
 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
 {
 	struct ath_btcoex *btcoex = &sc->btcoex;
 
-	ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
+	if (btcoex->hw_timer_enabled) {
+		ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
+		btcoex->hw_timer_enabled = false;
+	}
 }
 
 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
@@ -379,7 +395,10 @@ void ath9k_start_btcoex(struct ath_softc *sc)
 	    !ah->btcoex_hw.enabled) {
 		if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
 			ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-						   AR_STOMP_LOW_WLAN_WGHT);
+						   AR_STOMP_LOW_WLAN_WGHT, 0);
+		else
+			ath9k_hw_btcoex_set_weight(ah, 0, 0,
+						   ATH_BTCOEX_STOMP_NONE);
 		ath9k_hw_btcoex_enable(ah);
 
 		if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
@@ -396,7 +415,7 @@ void ath9k_stop_btcoex(struct ath_softc *sc)
 		if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
 			ath9k_btcoex_timer_pause(sc);
 		ath9k_hw_btcoex_disable(ah);
-		if (AR_SREV_9462(ah))
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 			ath_mci_flush_profile(&sc->btcoex.mci);
 	}
 }
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index aa327adcc3d..924c4616c3d 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -973,8 +973,8 @@ static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev)
 static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
 {
 	int transfer, err;
-	const void *data = hif_dev->firmware->data;
-	size_t len = hif_dev->firmware->size;
+	const void *data = hif_dev->fw_data;
+	size_t len = hif_dev->fw_size;
 	u32 addr = AR9271_FIRMWARE;
 	u8 *buf = kzalloc(4096, GFP_KERNEL);
 	u32 firm_offset;
@@ -1017,7 +1017,7 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
 		return -EIO;
 
 	dev_info(&hif_dev->udev->dev, "ath9k_htc: Transferred FW: %s, size: %ld\n",
-		 hif_dev->fw_name, (unsigned long) hif_dev->firmware->size);
+		 hif_dev->fw_name, (unsigned long) hif_dev->fw_size);
 
 	return 0;
 }
@@ -1072,14 +1072,15 @@ static void ath9k_hif_usb_dev_deinit(struct hif_device_usb *hif_dev)
  */
 static void ath9k_hif_usb_firmware_fail(struct hif_device_usb *hif_dev)
 {
-	struct device *parent = hif_dev->udev->dev.parent;
+	struct device *dev = &hif_dev->udev->dev;
+	struct device *parent = dev->parent;
 
 	complete(&hif_dev->fw_done);
 
 	if (parent)
 		device_lock(parent);
 
-	device_release_driver(&hif_dev->udev->dev);
+	device_release_driver(dev);
 
 	if (parent)
 		device_unlock(parent);
@@ -1099,11 +1100,11 @@ static void ath9k_hif_usb_firmware_cb(const struct firmware *fw, void *context)
 
 	hif_dev->htc_handle = ath9k_htc_hw_alloc(hif_dev, &hif_usb,
 						 &hif_dev->udev->dev);
-	if (hif_dev->htc_handle == NULL) {
-		goto err_fw;
-	}
+	if (hif_dev->htc_handle == NULL)
+		goto err_dev_alloc;
 
-	hif_dev->firmware = fw;
+	hif_dev->fw_data = fw->data;
+	hif_dev->fw_size = fw->size;
 
 	/* Proceed with initialization */
 
@@ -1121,6 +1122,8 @@ static void ath9k_hif_usb_firmware_cb(const struct firmware *fw, void *context)
 		goto err_htc_hw_init;
 	}
 
+	release_firmware(fw);
+	hif_dev->flags |= HIF_USB_READY;
 	complete(&hif_dev->fw_done);
 
 	return;
@@ -1129,8 +1132,8 @@ err_htc_hw_init:
 	ath9k_hif_usb_dev_deinit(hif_dev);
 err_dev_init:
 	ath9k_htc_hw_free(hif_dev->htc_handle);
+err_dev_alloc:
 	release_firmware(fw);
-	hif_dev->firmware = NULL;
 err_fw:
 	ath9k_hif_usb_firmware_fail(hif_dev);
 }
@@ -1277,11 +1280,10 @@ static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
 
 	wait_for_completion(&hif_dev->fw_done);
 
-	if (hif_dev->firmware) {
+	if (hif_dev->flags & HIF_USB_READY) {
 		ath9k_htc_hw_deinit(hif_dev->htc_handle, unplugged);
 		ath9k_htc_hw_free(hif_dev->htc_handle);
 		ath9k_hif_usb_dev_deinit(hif_dev);
-		release_firmware(hif_dev->firmware);
 	}
 
 	usb_set_intfdata(interface, NULL);
@@ -1317,13 +1319,23 @@ static int ath9k_hif_usb_resume(struct usb_interface *interface)
 	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 	struct htc_target *htc_handle = hif_dev->htc_handle;
 	int ret;
+	const struct firmware *fw;
 
 	ret = ath9k_hif_usb_alloc_urbs(hif_dev);
 	if (ret)
 		return ret;
 
-	if (hif_dev->firmware) {
+	if (hif_dev->flags & HIF_USB_READY) {
+		/* request cached firmware during suspend/resume cycle */
+		ret = request_firmware(&fw, hif_dev->fw_name,
+				       &hif_dev->udev->dev);
+		if (ret)
+			goto fail_resume;
+
+		hif_dev->fw_data = fw->data;
+		hif_dev->fw_size = fw->size;
 		ret = ath9k_hif_usb_download_fw(hif_dev);
+		release_firmware(fw);
 		if (ret)
 			goto fail_resume;
 	} else {
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.h b/drivers/net/wireless/ath/ath9k/hif_usb.h
index 487ff658b4c..51496e74b83 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.h
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.h
@@ -85,12 +85,14 @@ struct cmd_buf {
 };
 
 #define HIF_USB_START BIT(0)
+#define HIF_USB_READY BIT(1)
 
 struct hif_device_usb {
 	struct usb_device *udev;
 	struct usb_interface *interface;
 	const struct usb_device_id *usb_device_id;
-	const struct firmware *firmware;
+	const void *fw_data;
+	size_t fw_size;
 	struct completion fw_done;
 	struct htc_target *htc_handle;
 	struct hif_usb_tx tx;
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 936e920fb88..b30596fcf73 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -542,6 +542,7 @@ void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
 
 int ath9k_tx_init(struct ath9k_htc_priv *priv);
 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
+		       struct ieee80211_sta *sta,
 		       struct sk_buff *skb, u8 slot, bool is_cab);
 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
index 77d541feb91..f42d2eb6af9 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -326,7 +326,7 @@ static void ath9k_htc_send_buffered(struct ath9k_htc_priv *priv,
 			goto next;
 		}
 
-		ret = ath9k_htc_tx_start(priv, skb, tx_slot, true);
+		ret = ath9k_htc_tx_start(priv, NULL, skb, tx_slot, true);
 		if (ret != 0) {
 			ath9k_htc_tx_clear_slot(priv, tx_slot);
 			dev_kfree_skb_any(skb);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
index 07df279c8d4..0eacfc13c91 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
@@ -161,7 +161,7 @@ void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
 
 	if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) {
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-					   AR_STOMP_LOW_WLAN_WGHT);
+					   AR_STOMP_LOW_WLAN_WGHT, 0);
 		ath9k_hw_btcoex_enable(ah);
 		ath_htc_resume_btcoex_work(priv);
 	}
@@ -173,17 +173,26 @@ void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
 
 	if (ah->btcoex_hw.enabled &&
 	    ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
-		ath9k_hw_btcoex_disable(ah);
 		if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
 			ath_htc_cancel_btcoex_work(priv);
+		ath9k_hw_btcoex_disable(ah);
 	}
 }
 
 void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
 {
 	struct ath_hw *ah = priv->ah;
+	struct ath_common *common = ath9k_hw_common(ah);
 	int qnum;
 
+	/*
+	 * Check if BTCOEX is globally disabled.
+	 */
+	if (!common->btcoex_enabled) {
+		ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_NONE;
+		return;
+	}
+
 	if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
 		ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
 	}
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index a035a380d66..d98255eb1b9 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -30,6 +30,10 @@ int htc_modparam_nohwcrypt;
 module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
 
+static int ath9k_htc_btcoex_enable;
+module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444);
+MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
+
 #define CHAN2G(_freq, _idx)  { \
 	.center_freq = (_freq), \
 	.hw_value = (_idx), \
@@ -635,6 +639,7 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv,
 	common->hw = priv->hw;
 	common->priv = priv;
 	common->debug_mask = ath9k_debug;
+	common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
 
 	spin_lock_init(&priv->beacon_lock);
 	spin_lock_init(&priv->tx.tx_lock);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index c785129692f..ca78e33ca23 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -489,24 +489,20 @@ static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
 		ista = (struct ath9k_htc_sta *) sta->drv_priv;
 		memcpy(&tsta.macaddr, sta->addr, ETH_ALEN);
 		memcpy(&tsta.bssid, common->curbssid, ETH_ALEN);
-		tsta.is_vif_sta = 0;
 		ista->index = sta_idx;
+		tsta.is_vif_sta = 0;
+		maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+				 sta->ht_cap.ampdu_factor);
+		tsta.maxampdu = cpu_to_be16(maxampdu);
 	} else {
 		memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
 		tsta.is_vif_sta = 1;
+		tsta.maxampdu = cpu_to_be16(0xffff);
 	}
 
 	tsta.sta_index = sta_idx;
 	tsta.vif_index = avp->index;
 
-	if (!sta) {
-		tsta.maxampdu = cpu_to_be16(0xffff);
-	} else {
-		maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
-				 sta->ht_cap.ampdu_factor);
-		tsta.maxampdu = cpu_to_be16(maxampdu);
-	}
-
 	WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
 	if (ret) {
 		if (sta)
@@ -856,7 +852,9 @@ set_timer:
 /* mac80211 Callbacks */
 /**********************/
 
-static void ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void ath9k_htc_tx(struct ieee80211_hw *hw,
+			 struct ieee80211_tx_control *control,
+			 struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr;
 	struct ath9k_htc_priv *priv = hw->priv;
@@ -883,7 +881,7 @@ static void ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 		goto fail_tx;
 	}
 
-	ret = ath9k_htc_tx_start(priv, skb, slot, false);
+	ret = ath9k_htc_tx_start(priv, control->sta, skb, slot, false);
 	if (ret != 0) {
 		ath_dbg(common, XMIT, "Tx failed\n");
 		goto clear_slot;
@@ -1331,6 +1329,34 @@ static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
 	return ret;
 }
 
+static void ath9k_htc_sta_rc_update(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    struct ieee80211_sta *sta, u32 changed)
+{
+	struct ath9k_htc_priv *priv = hw->priv;
+	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct ath9k_htc_target_rate trate;
+
+	mutex_lock(&priv->mutex);
+	ath9k_htc_ps_wakeup(priv);
+
+	if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
+		memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
+		ath9k_htc_setup_rate(priv, sta, &trate);
+		if (!ath9k_htc_send_rate_cmd(priv, &trate))
+			ath_dbg(common, CONFIG,
+				"Supported rates for sta: %pM updated, rate caps: 0x%X\n",
+				sta->addr, be32_to_cpu(trate.capflags));
+		else
+			ath_dbg(common, CONFIG,
+				"Unable to update supported rates for sta: %pM\n",
+				sta->addr);
+	}
+
+	ath9k_htc_ps_restore(priv);
+	mutex_unlock(&priv->mutex);
+}
+
 static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
 			     struct ieee80211_vif *vif, u16 queue,
 			     const struct ieee80211_tx_queue_params *params)
@@ -1419,7 +1445,7 @@ static int ath9k_htc_set_key(struct ieee80211_hw *hw,
 				key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 			if (priv->ah->sw_mgmt_crypto &&
 			    key->cipher == WLAN_CIPHER_SUITE_CCMP)
-				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
+				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
 			ret = 0;
 		}
 		break;
@@ -1758,6 +1784,7 @@ struct ieee80211_ops ath9k_htc_ops = {
 	.sta_add            = ath9k_htc_sta_add,
 	.sta_remove         = ath9k_htc_sta_remove,
 	.conf_tx            = ath9k_htc_conf_tx,
+	.sta_rc_update      = ath9k_htc_sta_rc_update,
 	.bss_info_changed   = ath9k_htc_bss_info_changed,
 	.set_key            = ath9k_htc_set_key,
 	.get_tsf            = ath9k_htc_get_tsf,
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 47e61d0da33..06cdcb772d7 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -333,12 +333,12 @@ static void ath9k_htc_tx_data(struct ath9k_htc_priv *priv,
 }
 
 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
+		       struct ieee80211_sta *sta,
 		       struct sk_buff *skb,
 		       u8 slot, bool is_cab)
 {
 	struct ieee80211_hdr *hdr;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_sta *sta = tx_info->control.sta;
 	struct ieee80211_vif *vif = tx_info->control.vif;
 	struct ath9k_htc_sta *ista;
 	struct ath9k_htc_vif *avp = NULL;
diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h
index 265bf77598a..0f2b97f6b73 100644
--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
@@ -78,6 +78,13 @@ static inline void ath9k_hw_antdiv_comb_conf_set(struct ath_hw *ah,
 	ath9k_hw_ops(ah)->antdiv_comb_conf_set(ah, antconf);
 }
 
+static inline void ath9k_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
+							bool enable)
+{
+	if (ath9k_hw_ops(ah)->antctrl_shared_chain_lnadiv)
+		ath9k_hw_ops(ah)->antctrl_shared_chain_lnadiv(ah, enable);
+}
+
 /* Private hardware call ops */
 
 /* PHY ops */
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index cfa91ab7acf..f9a6ec5cf47 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -24,6 +24,7 @@
 #include "rc.h"
 #include "ar9003_mac.h"
 #include "ar9003_mci.h"
+#include "ar9003_phy.h"
 #include "debug.h"
 #include "ath9k.h"
 
@@ -355,7 +356,7 @@ static void ath9k_hw_read_revisions(struct ath_hw *ah)
 			(val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
 		ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 
-		if (AR_SREV_9462(ah))
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 			ah->is_pciexpress = true;
 		else
 			ah->is_pciexpress = (val &
@@ -463,9 +464,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
 		ah->config.spurchans[i][1] = AR_NO_SPUR;
 	}
 
-	/* PAPRD needs some more work to be enabled */
-	ah->config.paprd_disable = 1;
-
 	ah->config.rx_intr_mitigation = true;
 	ah->config.pcieSerDesWrite = true;
 
@@ -605,6 +603,11 @@ static int __ath9k_hw_init(struct ath_hw *ah)
 	if (AR_SREV_9462(ah))
 		ah->WARegVal &= ~AR_WA_D3_L1_DISABLE;
 
+	if (AR_SREV_9565(ah)) {
+		ah->WARegVal |= AR_WA_BIT22;
+		REG_WRITE(ah, AR_WA, ah->WARegVal);
+	}
+
 	ath9k_hw_init_defaults(ah);
 	ath9k_hw_init_config(ah);
 
@@ -650,6 +653,7 @@ static int __ath9k_hw_init(struct ath_hw *ah)
 	case AR_SREV_VERSION_9340:
 	case AR_SREV_VERSION_9462:
 	case AR_SREV_VERSION_9550:
+	case AR_SREV_VERSION_9565:
 		break;
 	default:
 		ath_err(common,
@@ -711,7 +715,7 @@ int ath9k_hw_init(struct ath_hw *ah)
 	int ret;
 	struct ath_common *common = ath9k_hw_common(ah);
 
-	/* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
+	/* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
 	switch (ah->hw_version.devid) {
 	case AR5416_DEVID_PCI:
 	case AR5416_DEVID_PCIE:
@@ -730,6 +734,8 @@ int ath9k_hw_init(struct ath_hw *ah)
 	case AR9300_DEVID_QCA955X:
 	case AR9300_DEVID_AR9580:
 	case AR9300_DEVID_AR9462:
+	case AR9485_DEVID_AR1111:
+	case AR9300_DEVID_AR9565:
 		break;
 	default:
 		if (common->bus_ops->ath_bus_type == ATH_USB)
@@ -802,8 +808,7 @@ static void ath9k_hw_init_pll(struct ath_hw *ah,
 {
 	u32 pll;
 
-	if (AR_SREV_9485(ah)) {
-
+	if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
 		/* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
 		REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
 			      AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
@@ -914,7 +919,8 @@ static void ath9k_hw_init_pll(struct ath_hw *ah,
 	}
 
 	pll = ath9k_hw_compute_pll_control(ah, chan);
-
+	if (AR_SREV_9565(ah))
+		pll |= 0x40000;
 	REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
 
 	if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
@@ -977,9 +983,6 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
 	else
 		imr_reg |= AR_IMR_TXOK;
 
-	if (opmode == NL80211_IFTYPE_AP)
-		imr_reg |= AR_IMR_MIB;
-
 	ENABLE_REGWRITE_BUFFER(ah);
 
 	REG_WRITE(ah, AR_IMR, imr_reg);
@@ -1731,12 +1734,12 @@ static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
 	if (!ret)
 		goto fail;
 
-	ath9k_hw_loadnf(ah, ah->curchan);
-	ath9k_hw_start_nfcal(ah, true);
-
 	if (ath9k_hw_mci_is_enabled(ah))
 		ar9003_mci_2g5g_switch(ah, false);
 
+	ath9k_hw_loadnf(ah, ah->curchan);
+	ath9k_hw_start_nfcal(ah, true);
+
 	if (AR_SREV_9271(ah))
 		ar9002_hw_load_ani_reg(ah, chan);
 
@@ -1777,6 +1780,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		/* Operating channel changed, reset channel calibration data */
 		memset(caldata, 0, sizeof(*caldata));
 		ath9k_init_nfcal_hist_buffer(ah, chan);
+	} else if (caldata) {
+		caldata->paprd_packet_sent = false;
 	}
 	ah->noise = ath9k_hw_getchan_noise(ah, chan);
 
@@ -2021,6 +2026,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ath9k_hw_apply_gpio_override(ah);
 
+	if (AR_SREV_9565(ah) && ah->shared_chain_lnadiv)
+		REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
+
 	return 0;
 }
 EXPORT_SYMBOL(ath9k_hw_reset);
@@ -2037,7 +2045,7 @@ static void ath9k_set_power_sleep(struct ath_hw *ah)
 {
 	REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
 
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
 		REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
 		REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
@@ -2404,7 +2412,10 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 	if (eeval & AR5416_OPFLAGS_11G)
 		pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
 
-	if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah))
+	if (AR_SREV_9485(ah) ||
+	    AR_SREV_9285(ah) ||
+	    AR_SREV_9330(ah) ||
+	    AR_SREV_9565(ah))
 		chip_chainmask = 1;
 	else if (AR_SREV_9462(ah))
 		chip_chainmask = 3;
@@ -2492,7 +2503,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 
 	if (AR_SREV_9300_20_OR_LATER(ah)) {
 		pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
-		if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah))
+		if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) && !AR_SREV_9565(ah))
 			pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
 
 		pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
@@ -2500,9 +2511,6 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 		pCap->rx_status_len = sizeof(struct ar9003_rxs);
 		pCap->tx_desc_len = sizeof(struct ar9003_txc);
 		pCap->txs_len = sizeof(struct ar9003_txs);
-		if (!ah->config.paprd_disable &&
-		    ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
-			pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
 	} else {
 		pCap->tx_desc_len = sizeof(struct ath_desc);
 		if (AR_SREV_9280_20(ah))
@@ -2531,7 +2539,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 	}
 
 
-	if (AR_SREV_9330(ah) || AR_SREV_9485(ah)) {
+	if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
 		ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
 		/*
 		 * enable the diversity-combining algorithm only when
@@ -2574,14 +2582,12 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 			ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
 	}
 
-	if (AR_SREV_9462(ah)) {
-
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
 			pCap->hw_caps |= ATH9K_HW_CAP_MCI;
 
 		if (AR_SREV_9462_20(ah))
 			pCap->hw_caps |= ATH9K_HW_CAP_RTT;
-
 	}
 
 
@@ -2747,7 +2753,7 @@ void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
 
 	ENABLE_REGWRITE_BUFFER(ah);
 
-	if (AR_SREV_9462(ah))
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 		bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
 
 	REG_WRITE(ah, AR_RX_FILTER, bits);
@@ -3044,7 +3050,7 @@ void ath9k_hw_gen_timer_start(struct ath_hw *ah,
 	REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
 		    gen_tmr_configuration[timer->index].mode_mask);
 
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		/*
 		 * Starting from AR9462, each generic timer can select which tsf
 		 * to use. But we still follow the old rule, 0 - 7 use tsf and
@@ -3078,6 +3084,16 @@ void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
 	REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
 			gen_tmr_configuration[timer->index].mode_mask);
 
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+		/*
+		 * Need to switch back to TSF if it was using TSF2.
+		 */
+		if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
+			REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
+				    (1 << timer->index));
+		}
+	}
+
 	/* Disable both trigger and thresh interrupt masks */
 	REG_CLR_BIT(ah, AR_IMR_S5,
 		(SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
@@ -3159,6 +3175,7 @@ static struct {
 	{ AR_SREV_VERSION_9485,         "9485" },
 	{ AR_SREV_VERSION_9462,         "9462" },
 	{ AR_SREV_VERSION_9550,         "9550" },
+	{ AR_SREV_VERSION_9565,         "9565" },
 };
 
 /* For devices with external radios */
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index dd0c146d81d..566a4ce4f15 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -49,6 +49,8 @@
 #define AR9300_DEVID_AR9462	0x0034
 #define AR9300_DEVID_AR9330	0x0035
 #define AR9300_DEVID_QCA955X	0x0038
+#define AR9485_DEVID_AR1111	0x0037
+#define AR9300_DEVID_AR9565     0x0036
 
 #define AR5416_AR9100_DEVID	0x000b
 
@@ -235,7 +237,6 @@ enum ath9k_hw_caps {
 	ATH9K_HW_CAP_LDPC			= BIT(6),
 	ATH9K_HW_CAP_FASTCLOCK			= BIT(7),
 	ATH9K_HW_CAP_SGI_20			= BIT(8),
-	ATH9K_HW_CAP_PAPRD			= BIT(9),
 	ATH9K_HW_CAP_ANT_DIV_COMB		= BIT(10),
 	ATH9K_HW_CAP_2GHZ			= BIT(11),
 	ATH9K_HW_CAP_5GHZ			= BIT(12),
@@ -286,12 +287,12 @@ struct ath9k_ops_config {
 	u8 pcie_clock_req;
 	u32 pcie_waen;
 	u8 analog_shiftreg;
-	u8 paprd_disable;
 	u32 ofdm_trig_low;
 	u32 ofdm_trig_high;
 	u32 cck_trig_high;
 	u32 cck_trig_low;
 	u32 enable_ani;
+	u32 enable_paprd;
 	int serialize_regmode;
 	bool rx_intr_mitigation;
 	bool tx_intr_mitigation;
@@ -404,6 +405,7 @@ struct ath9k_hw_cal_data {
 	int8_t iCoff;
 	int8_t qCoff;
 	bool rtt_done;
+	bool paprd_packet_sent;
 	bool paprd_done;
 	bool nfcal_pending;
 	bool nfcal_interference;
@@ -684,7 +686,7 @@ struct ath_hw_ops {
 			struct ath_hw_antcomb_conf *antconf);
 	void (*antdiv_comb_conf_set)(struct ath_hw *ah,
 			struct ath_hw_antcomb_conf *antconf);
-
+	void (*antctrl_shared_chain_lnadiv)(struct ath_hw *hw, bool enable);
 };
 
 struct ath_nf_limits {
@@ -728,6 +730,7 @@ struct ath_hw {
 	bool aspm_enabled;
 	bool is_monitoring;
 	bool need_an_top2_fixup;
+	bool shared_chain_lnadiv;
 	u16 tx_trig_level;
 
 	u32 nf_regs[6];
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index f33712140fa..fad3ccd5cd9 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -46,6 +46,10 @@ static int ath9k_btcoex_enable;
 module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
 
+static int ath9k_enable_diversity;
+module_param_named(enable_diversity, ath9k_enable_diversity, int, 0444);
+MODULE_PARM_DESC(enable_diversity, "Enable Antenna diversity for AR9565");
+
 bool is_ath9k_unloaded;
 /* We use the hw_value as an index into our private channel structure */
 
@@ -258,7 +262,7 @@ static void setup_ht_cap(struct ath_softc *sc,
 	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
 	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
 
-	if (AR_SREV_9330(ah) || AR_SREV_9485(ah))
+	if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah))
 		max_streams = 1;
 	else if (AR_SREV_9462(ah))
 		max_streams = 2;
@@ -546,6 +550,14 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	common->debug_mask = ath9k_debug;
 	common->btcoex_enabled = ath9k_btcoex_enable == 1;
 	common->disable_ani = false;
+
+	/*
+	 * Enable Antenna diversity only when BTCOEX is disabled
+	 * and the user manually requests the feature.
+	 */
+	if (!common->btcoex_enabled && ath9k_enable_diversity)
+		common->antenna_diversity = 1;
+
 	spin_lock_init(&common->cc_lock);
 
 	spin_lock_init(&sc->sc_serial_rw);
@@ -597,6 +609,7 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 
 	ath9k_cmn_init_crypto(sc->sc_ah);
 	ath9k_init_misc(sc);
+	ath_fill_led_pin(sc);
 
 	if (common->bus_ops->aspm_init)
 		common->bus_ops->aspm_init(common);
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index d4549e9aac5..7b88b9c39cc 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -254,8 +254,9 @@ void ath_paprd_calibrate(struct work_struct *work)
 	int chain_ok = 0;
 	int chain;
 	int len = 1800;
+	int ret;
 
-	if (!caldata)
+	if (!caldata || !caldata->paprd_packet_sent || caldata->paprd_done)
 		return;
 
 	ath9k_ps_wakeup(sc);
@@ -282,13 +283,6 @@ void ath_paprd_calibrate(struct work_struct *work)
 			continue;
 
 		chain_ok = 0;
-
-		ath_dbg(common, CALIBRATE,
-			"Sending PAPRD frame for thermal measurement on chain %d\n",
-			chain);
-		if (!ath_paprd_send_frame(sc, skb, chain))
-			goto fail_paprd;
-
 		ar9003_paprd_setup_gain_table(ah, chain);
 
 		ath_dbg(common, CALIBRATE,
@@ -302,7 +296,13 @@ void ath_paprd_calibrate(struct work_struct *work)
 			break;
 		}
 
-		if (ar9003_paprd_create_curve(ah, caldata, chain)) {
+		ret = ar9003_paprd_create_curve(ah, caldata, chain);
+		if (ret == -EINPROGRESS) {
+			ath_dbg(common, CALIBRATE,
+				"PAPRD curve on chain %d needs to be re-trained\n",
+				chain);
+			break;
+		} else if (ret) {
 			ath_dbg(common, CALIBRATE,
 				"PAPRD create curve failed on chain %d\n",
 				chain);
@@ -423,7 +423,7 @@ set_timer:
 		cal_interval = min(cal_interval, (u32)short_cal_interval);
 
 	mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
-	if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) {
+	if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD) && ah->caldata) {
 		if (!ah->caldata->paprd_done)
 			ieee80211_queue_work(sc->hw, &sc->paprd_work);
 		else if (!ah->paprd_table_write_done)
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 7990cd55599..b42be910a83 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -773,15 +773,10 @@ bool ath9k_hw_intrpend(struct ath_hw *ah)
 }
 EXPORT_SYMBOL(ath9k_hw_intrpend);
 
-void ath9k_hw_disable_interrupts(struct ath_hw *ah)
+void ath9k_hw_kill_interrupts(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 
-	if (!(ah->imask & ATH9K_INT_GLOBAL))
-		atomic_set(&ah->intr_ref_cnt, -1);
-	else
-		atomic_dec(&ah->intr_ref_cnt);
-
 	ath_dbg(common, INTERRUPT, "disable IER\n");
 	REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
 	(void) REG_READ(ah, AR_IER);
@@ -793,6 +788,17 @@ void ath9k_hw_disable_interrupts(struct ath_hw *ah)
 		(void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
 	}
 }
+EXPORT_SYMBOL(ath9k_hw_kill_interrupts);
+
+void ath9k_hw_disable_interrupts(struct ath_hw *ah)
+{
+	if (!(ah->imask & ATH9K_INT_GLOBAL))
+		atomic_set(&ah->intr_ref_cnt, -1);
+	else
+		atomic_dec(&ah->intr_ref_cnt);
+
+	ath9k_hw_kill_interrupts(ah);
+}
 EXPORT_SYMBOL(ath9k_hw_disable_interrupts);
 
 void ath9k_hw_enable_interrupts(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 0eba36dca6f..4a745e68dd9 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -738,6 +738,7 @@ bool ath9k_hw_intrpend(struct ath_hw *ah);
 void ath9k_hw_set_interrupts(struct ath_hw *ah);
 void ath9k_hw_enable_interrupts(struct ath_hw *ah);
 void ath9k_hw_disable_interrupts(struct ath_hw *ah);
+void ath9k_hw_kill_interrupts(struct ath_hw *ah);
 
 void ar9002_hw_attach_mac_ops(struct ath_hw *ah);
 
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 6049d8b8285..31ab82e3ba8 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -462,8 +462,10 @@ irqreturn_t ath_isr(int irq, void *dev)
 	if (!ath9k_hw_intrpend(ah))
 		return IRQ_NONE;
 
-	if(test_bit(SC_OP_HW_RESET, &sc->sc_flags))
+	if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
+		ath9k_hw_kill_interrupts(ah);
 		return IRQ_HANDLED;
+	}
 
 	/*
 	 * Figure out the reason(s) for the interrupt.  Note
@@ -694,7 +696,9 @@ mutex_unlock:
 	return r;
 }
 
-static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void ath9k_tx(struct ieee80211_hw *hw,
+		     struct ieee80211_tx_control *control,
+		     struct sk_buff *skb)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
@@ -754,6 +758,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 	memset(&txctl, 0, sizeof(struct ath_tx_control));
 	txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
+	txctl.sta = control->sta;
 
 	ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
 
@@ -981,47 +986,21 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
 	struct ath_softc *sc = hw->priv;
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	int ret = 0;
 
-	ath9k_ps_wakeup(sc);
 	mutex_lock(&sc->mutex);
 
-	switch (vif->type) {
-	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_WDS:
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_AP:
-	case NL80211_IFTYPE_MESH_POINT:
-		break;
-	default:
-		ath_err(common, "Interface type %d not yet supported\n",
-			vif->type);
-		ret = -EOPNOTSUPP;
-		goto out;
-	}
-
-	if (ath9k_uses_beacons(vif->type)) {
-		if (sc->nbcnvifs >= ATH_BCBUF) {
-			ath_err(common, "Not enough beacon buffers when adding"
-				" new interface of type: %i\n",
-				vif->type);
-			ret = -ENOBUFS;
-			goto out;
-		}
-	}
-
 	ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
-
 	sc->nvifs++;
 
+	ath9k_ps_wakeup(sc);
 	ath9k_calculate_summary_state(hw, vif);
+	ath9k_ps_restore(sc);
+
 	if (ath9k_uses_beacons(vif->type))
 		ath9k_beacon_assign_slot(sc, vif);
 
-out:
 	mutex_unlock(&sc->mutex);
-	ath9k_ps_restore(sc);
-	return ret;
+	return 0;
 }
 
 static int ath9k_change_interface(struct ieee80211_hw *hw,
@@ -1031,21 +1010,9 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	int ret = 0;
 
 	ath_dbg(common, CONFIG, "Change Interface\n");
-
 	mutex_lock(&sc->mutex);
-	ath9k_ps_wakeup(sc);
-
-	if (ath9k_uses_beacons(new_type) &&
-	    !ath9k_uses_beacons(vif->type)) {
-		if (sc->nbcnvifs >= ATH_BCBUF) {
-			ath_err(common, "No beacon slot available\n");
-			ret = -ENOBUFS;
-			goto out;
-		}
-	}
 
 	if (ath9k_uses_beacons(vif->type))
 		ath9k_beacon_remove_slot(sc, vif);
@@ -1053,14 +1020,15 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
 	vif->type = new_type;
 	vif->p2p = p2p;
 
+	ath9k_ps_wakeup(sc);
 	ath9k_calculate_summary_state(hw, vif);
+	ath9k_ps_restore(sc);
+
 	if (ath9k_uses_beacons(vif->type))
 		ath9k_beacon_assign_slot(sc, vif);
 
-out:
-	ath9k_ps_restore(sc);
 	mutex_unlock(&sc->mutex);
-	return ret;
+	return 0;
 }
 
 static void ath9k_remove_interface(struct ieee80211_hw *hw,
@@ -1071,7 +1039,6 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
 
 	ath_dbg(common, CONFIG, "Detach Interface\n");
 
-	ath9k_ps_wakeup(sc);
 	mutex_lock(&sc->mutex);
 
 	sc->nvifs--;
@@ -1079,10 +1046,11 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
 	if (ath9k_uses_beacons(vif->type))
 		ath9k_beacon_remove_slot(sc, vif);
 
+	ath9k_ps_wakeup(sc);
 	ath9k_calculate_summary_state(hw, NULL);
+	ath9k_ps_restore(sc);
 
 	mutex_unlock(&sc->mutex);
-	ath9k_ps_restore(sc);
 }
 
 static void ath9k_enable_ps(struct ath_softc *sc)
@@ -1438,7 +1406,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
 				key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 			if (sc->sc_ah->sw_mgmt_crypto &&
 			    key->cipher == WLAN_CIPHER_SUITE_CCMP)
-				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
+				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
 			ret = 0;
 		}
 		break;
@@ -2255,7 +2223,7 @@ static int ath9k_suspend(struct ieee80211_hw *hw,
 	mutex_lock(&sc->mutex);
 
 	ath_cancel_work(sc);
-	del_timer_sync(&common->ani.timer);
+	ath_stop_ani(sc);
 	del_timer_sync(&sc->rx_poll_timer);
 
 	if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c
index fb536e7e661..ec2d7c80756 100644
--- a/drivers/net/wireless/ath/ath9k/mci.c
+++ b/drivers/net/wireless/ath/ath9k/mci.c
@@ -80,6 +80,7 @@ void ath_mci_flush_profile(struct ath_mci_profile *mci)
 	struct ath_mci_profile_info *info, *tinfo;
 
 	mci->aggr_limit = 0;
+	mci->num_mgmt = 0;
 
 	if (list_empty(&mci->info))
 		return;
@@ -120,7 +121,14 @@ static void ath_mci_update_scheme(struct ath_softc *sc)
 	if (mci_hw->config & ATH_MCI_CONFIG_DISABLE_TUNING)
 		goto skip_tuning;
 
+	mci->aggr_limit = 0;
 	btcoex->duty_cycle = ath_mci_duty_cycle[num_profile];
+	btcoex->btcoex_period = ATH_MCI_DEF_BT_PERIOD;
+	if (NUM_PROF(mci))
+		btcoex->bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
+	else
+		btcoex->bt_stomp_type = mci->num_mgmt ? ATH_BTCOEX_STOMP_ALL :
+							ATH_BTCOEX_STOMP_LOW;
 
 	if (num_profile == 1) {
 		info = list_first_entry(&mci->info,
@@ -132,7 +140,8 @@ static void ath_mci_update_scheme(struct ath_softc *sc)
 			else if (info->T == 6) {
 				mci->aggr_limit = 6;
 				btcoex->duty_cycle = 30;
-			}
+			} else
+				mci->aggr_limit = 6;
 			ath_dbg(common, MCI,
 				"Single SCO, aggregation limit %d 1/4 ms\n",
 				mci->aggr_limit);
@@ -191,6 +200,23 @@ skip_tuning:
 	ath9k_btcoex_timer_resume(sc);
 }
 
+static void ath_mci_wait_btcal_done(struct ath_softc *sc)
+{
+	struct ath_hw *ah = sc->sc_ah;
+
+	/* Stop tx & rx */
+	ieee80211_stop_queues(sc->hw);
+	ath_stoprecv(sc);
+	ath_drain_all_txq(sc, false);
+
+	/* Wait for cal done */
+	ar9003_mci_start_reset(ah, ah->curchan);
+
+	/* Resume tx & rx */
+	ath_startrecv(sc);
+	ieee80211_wake_queues(sc->hw);
+}
+
 static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
 {
 	struct ath_hw *ah = sc->sc_ah;
@@ -201,8 +227,8 @@ static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
 	switch (opcode) {
 	case MCI_GPM_BT_CAL_REQ:
 		if (mci_hw->bt_state == MCI_BT_AWAKE) {
-			ar9003_mci_state(ah, MCI_STATE_SET_BT_CAL_START);
-			ath9k_queue_reset(sc, RESET_TYPE_MCI);
+			mci_hw->bt_state = MCI_BT_CAL_START;
+			ath_mci_wait_btcal_done(sc);
 		}
 		ath_dbg(common, MCI, "MCI State : %d\n", mci_hw->bt_state);
 		break;
@@ -224,8 +250,8 @@ static void ath9k_mci_work(struct work_struct *work)
 	ath_mci_update_scheme(sc);
 }
 
-static void ath_mci_process_profile(struct ath_softc *sc,
-				    struct ath_mci_profile_info *info)
+static u8 ath_mci_process_profile(struct ath_softc *sc,
+				  struct ath_mci_profile_info *info)
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath_btcoex *btcoex = &sc->btcoex;
@@ -251,25 +277,15 @@ static void ath_mci_process_profile(struct ath_softc *sc,
 
 	if (info->start) {
 		if (!entry && !ath_mci_add_profile(common, mci, info))
-			return;
+			return 0;
 	} else
 		ath_mci_del_profile(common, mci, entry);
 
-	btcoex->btcoex_period = ATH_MCI_DEF_BT_PERIOD;
-	mci->aggr_limit = mci->num_sco ? 6 : 0;
-
-	btcoex->duty_cycle = ath_mci_duty_cycle[NUM_PROF(mci)];
-	if (NUM_PROF(mci))
-		btcoex->bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
-	else
-		btcoex->bt_stomp_type = mci->num_mgmt ? ATH_BTCOEX_STOMP_ALL :
-							ATH_BTCOEX_STOMP_LOW;
-
-	ieee80211_queue_work(sc->hw, &sc->mci_work);
+	return 1;
 }
 
-static void ath_mci_process_status(struct ath_softc *sc,
-				   struct ath_mci_profile_status *status)
+static u8 ath_mci_process_status(struct ath_softc *sc,
+				 struct ath_mci_profile_status *status)
 {
 	struct ath_btcoex *btcoex = &sc->btcoex;
 	struct ath_mci_profile *mci = &btcoex->mci;
@@ -278,14 +294,14 @@ static void ath_mci_process_status(struct ath_softc *sc,
 
 	/* Link status type are not handled */
 	if (status->is_link)
-		return;
+		return 0;
 
 	info.conn_handle = status->conn_handle;
 	if (ath_mci_find_profile(mci, &info))
-		return;
+		return 0;
 
 	if (status->conn_handle >= ATH_MCI_MAX_PROFILE)
-		return;
+		return 0;
 
 	if (status->is_critical)
 		__set_bit(status->conn_handle, mci->status);
@@ -299,7 +315,9 @@ static void ath_mci_process_status(struct ath_softc *sc,
 	} while (++i < ATH_MCI_MAX_PROFILE);
 
 	if (old_num_mgmt != mci->num_mgmt)
-		ieee80211_queue_work(sc->hw, &sc->mci_work);
+		return 1;
+
+	return 0;
 }
 
 static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
@@ -308,9 +326,16 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
 	struct ath_mci_profile_info profile_info;
 	struct ath_mci_profile_status profile_status;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	u8 major, minor;
+	u8 major, minor, update_scheme = 0;
 	u32 seq_num;
 
+	if (ar9003_mci_state(ah, MCI_STATE_NEED_FLUSH_BT_INFO) &&
+	    ar9003_mci_state(ah, MCI_STATE_ENABLE)) {
+		ath_dbg(common, MCI, "(MCI) Need to flush BT profiles\n");
+		ath_mci_flush_profile(&sc->btcoex.mci);
+		ar9003_mci_state(ah, MCI_STATE_SEND_STATUS_QUERY);
+	}
+
 	switch (opcode) {
 	case MCI_GPM_COEX_VERSION_QUERY:
 		ar9003_mci_state(ah, MCI_STATE_SEND_WLAN_COEX_VERSION);
@@ -336,7 +361,7 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
 			break;
 		}
 
-		ath_mci_process_profile(sc, &profile_info);
+		update_scheme += ath_mci_process_profile(sc, &profile_info);
 		break;
 	case MCI_GPM_COEX_BT_STATUS_UPDATE:
 		profile_status.is_link = *(rx_payload +
@@ -352,12 +377,14 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
 			profile_status.is_link, profile_status.conn_handle,
 			profile_status.is_critical, seq_num);
 
-		ath_mci_process_status(sc, &profile_status);
+		update_scheme += ath_mci_process_status(sc, &profile_status);
 		break;
 	default:
 		ath_dbg(common, MCI, "Unknown GPM COEX message = 0x%02x\n", opcode);
 		break;
 	}
+	if (update_scheme)
+		ieee80211_queue_work(sc->hw, &sc->mci_work);
 }
 
 int ath_mci_setup(struct ath_softc *sc)
@@ -365,6 +392,7 @@ int ath_mci_setup(struct ath_softc *sc)
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath_mci_coex *mci = &sc->mci_coex;
 	struct ath_mci_buf *buf = &mci->sched_buf;
+	int ret;
 
 	buf->bf_addr = dma_alloc_coherent(sc->dev,
 				  ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE,
@@ -384,9 +412,13 @@ int ath_mci_setup(struct ath_softc *sc)
 	mci->gpm_buf.bf_addr = (u8 *)mci->sched_buf.bf_addr + mci->sched_buf.bf_len;
 	mci->gpm_buf.bf_paddr = mci->sched_buf.bf_paddr + mci->sched_buf.bf_len;
 
-	ar9003_mci_setup(sc->sc_ah, mci->gpm_buf.bf_paddr,
-			 mci->gpm_buf.bf_addr, (mci->gpm_buf.bf_len >> 4),
-			 mci->sched_buf.bf_paddr);
+	ret = ar9003_mci_setup(sc->sc_ah, mci->gpm_buf.bf_paddr,
+			       mci->gpm_buf.bf_addr, (mci->gpm_buf.bf_len >> 4),
+			       mci->sched_buf.bf_paddr);
+	if (ret) {
+		ath_err(common, "Failed to initialize MCI\n");
+		return ret;
+	}
 
 	INIT_WORK(&sc->mci_work, ath9k_mci_work);
 	ath_dbg(common, MCI, "MCI Initialized\n");
@@ -551,9 +583,11 @@ void ath_mci_intr(struct ath_softc *sc)
 	}
 
 	if ((mci_int & AR_MCI_INTERRUPT_RX_INVALID_HDR) ||
-	    (mci_int & AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT))
+	    (mci_int & AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT)) {
 		mci_int &= ~(AR_MCI_INTERRUPT_RX_INVALID_HDR |
 			     AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT);
+		ath_mci_msg(sc, MCI_GPM_COEX_NOOP, NULL);
+	}
 }
 
 void ath_mci_enable(struct ath_softc *sc)
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 87b89d55e63..0e630a99b68 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -37,6 +37,8 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 	{ PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
+	{ PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
+	{ PCI_VDEVICE(ATHEROS, 0x0036) }, /* PCI-E  AR9565 */
 	{ 0 }
 };
 
@@ -112,41 +114,33 @@ static void ath_pci_aspm_init(struct ath_common *common)
 	struct ath_hw *ah = sc->sc_ah;
 	struct pci_dev *pdev = to_pci_dev(sc->dev);
 	struct pci_dev *parent;
-	int pos;
-	u8 aspm;
+	u16 aspm;
 
 	if (!ah->is_pciexpress)
 		return;
 
-	pos = pci_pcie_cap(pdev);
-	if (!pos)
-		return;
-
 	parent = pdev->bus->self;
 	if (!parent)
 		return;
 
-	if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
+	if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
+	    (AR_SREV_9285(ah))) {
 		/* Bluetooth coexistance requires disabling ASPM. */
-		pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &aspm);
-		aspm &= ~(PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
-		pci_write_config_byte(pdev, pos + PCI_EXP_LNKCTL, aspm);
+		pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
+			PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
 
 		/*
 		 * Both upstream and downstream PCIe components should
 		 * have the same ASPM settings.
 		 */
-		pos = pci_pcie_cap(parent);
-		pci_read_config_byte(parent, pos + PCI_EXP_LNKCTL, &aspm);
-		aspm &= ~(PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
-		pci_write_config_byte(parent, pos + PCI_EXP_LNKCTL, aspm);
+		pcie_capability_clear_word(parent, PCI_EXP_LNKCTL,
+			PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
 
 		ath_info(common, "Disabling ASPM since BTCOEX is enabled\n");
 		return;
 	}
 
-	pos = pci_pcie_cap(parent);
-	pci_read_config_byte(parent, pos +  PCI_EXP_LNKCTL, &aspm);
+	pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &aspm);
 	if (aspm & (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1)) {
 		ah->aspm_enabled = true;
 		/* Initialize PCIe PM and SERDES registers. */
@@ -320,6 +314,7 @@ static int ath_pci_suspend(struct device *device)
 	 * Otherwise the chip never moved to full sleep,
 	 * when no interface is up.
 	 */
+	ath9k_stop_btcoex(sc);
 	ath9k_hw_disable(sc->sc_ah);
 	ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
 
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index e034add9cd5..27ed80b5488 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -25,141 +25,141 @@ static const struct ath_rate_table ar5416_11na_ratetable = {
 	8, /* MCS start */
 	{
 		[0] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 6000,
-			5400, 0, 12, 0, 0, 0, 0 }, /* 6 Mb */
+			5400, 0, 12 }, /* 6 Mb */
 		[1] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 9000,
-			7800,  1, 18, 0, 1, 1, 1 }, /* 9 Mb */
+			7800,  1, 18 }, /* 9 Mb */
 		[2] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 12000,
-			10000, 2, 24, 2, 2, 2, 2 }, /* 12 Mb */
+			10000, 2, 24 }, /* 12 Mb */
 		[3] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 18000,
-			13900, 3, 36, 2, 3, 3, 3 }, /* 18 Mb */
+			13900, 3, 36 }, /* 18 Mb */
 		[4] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 24000,
-			17300, 4, 48, 4, 4, 4, 4 }, /* 24 Mb */
+			17300, 4, 48 }, /* 24 Mb */
 		[5] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 36000,
-			23000, 5, 72, 4, 5, 5, 5 }, /* 36 Mb */
+			23000, 5, 72 }, /* 36 Mb */
 		[6] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 48000,
-			27400, 6, 96, 4, 6, 6, 6 }, /* 48 Mb */
+			27400, 6, 96 }, /* 48 Mb */
 		[7] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 54000,
-			29300, 7, 108, 4, 7, 7, 7 }, /* 54 Mb */
+			29300, 7, 108 }, /* 54 Mb */
 		[8] = { RC_HT_SDT_2040, WLAN_RC_PHY_HT_20_SS, 6500,
-			6400, 0, 0, 0, 38, 8, 38 }, /* 6.5 Mb */
+			6400, 0, 0 }, /* 6.5 Mb */
 		[9] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 13000,
-			12700, 1, 1, 2, 39, 9, 39 }, /* 13 Mb */
+			12700, 1, 1 }, /* 13 Mb */
 		[10] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 19500,
-			18800, 2, 2, 2, 40, 10, 40 }, /* 19.5 Mb */
+			18800, 2, 2 }, /* 19.5 Mb */
 		[11] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 26000,
-			25000, 3, 3, 4, 41, 11, 41 }, /* 26 Mb */
+			25000, 3, 3 }, /* 26 Mb */
 		[12] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 39000,
-			36700, 4, 4, 4, 42, 12, 42 }, /* 39 Mb */
+			36700, 4, 4 }, /* 39 Mb */
 		[13] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 52000,
-			48100, 5, 5, 4, 43, 13, 43 }, /* 52 Mb */
+			48100, 5, 5 }, /* 52 Mb */
 		[14] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 58500,
-			53500, 6, 6, 4, 44, 14, 44 }, /* 58.5 Mb */
+			53500, 6, 6 }, /* 58.5 Mb */
 		[15] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 65000,
-			59000, 7, 7, 4, 45, 16, 46 }, /* 65 Mb */
+			59000, 7, 7 }, /* 65 Mb */
 		[16] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS_HGI, 72200,
-			65400, 7, 7, 4, 45, 16, 46 }, /* 75 Mb */
+			65400, 7, 7 }, /* 75 Mb */
 		[17] = { RC_INVALID, WLAN_RC_PHY_HT_20_DS, 13000,
-			12700, 8, 8, 0, 47, 17, 47 }, /* 13 Mb */
+			12700, 8, 8 }, /* 13 Mb */
 		[18] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 26000,
-			24800, 9, 9, 2, 48, 18, 48 }, /* 26 Mb */
+			24800, 9, 9 }, /* 26 Mb */
 		[19] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 39000,
-			36600, 10, 10, 2, 49, 19, 49 }, /* 39 Mb */
+			36600, 10, 10 }, /* 39 Mb */
 		[20] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 52000,
-			48100, 11, 11, 4, 50, 20, 50 }, /* 52 Mb */
+			48100, 11, 11 }, /* 52 Mb */
 		[21] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 78000,
-			69500, 12, 12, 4, 51, 21, 51 }, /* 78 Mb */
+			69500, 12, 12 }, /* 78 Mb */
 		[22] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 104000,
-			89500, 13, 13, 4, 52, 22, 52 }, /* 104 Mb */
+			89500, 13, 13 }, /* 104 Mb */
 		[23] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 117000,
-			98900, 14, 14, 4, 53, 23, 53 }, /* 117 Mb */
+			98900, 14, 14 }, /* 117 Mb */
 		[24] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 130000,
-			108300, 15, 15, 4, 54, 25, 55 }, /* 130 Mb */
+			108300, 15, 15 }, /* 130 Mb */
 		[25] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS_HGI, 144400,
-			120000, 15, 15, 4, 54, 25, 55 }, /* 144.4 Mb */
+			120000, 15, 15 }, /* 144.4 Mb */
 		[26] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 19500,
-			17400, 16, 16, 0, 56, 26, 56 }, /* 19.5 Mb */
+			17400, 16, 16 }, /* 19.5 Mb */
 		[27] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 39000,
-			35100, 17, 17, 2, 57, 27, 57 }, /* 39 Mb */
+			35100, 17, 17 }, /* 39 Mb */
 		[28] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 58500,
-			52600, 18, 18, 2, 58, 28, 58 }, /* 58.5 Mb */
+			52600, 18, 18 }, /* 58.5 Mb */
 		[29] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 78000,
-			70400, 19, 19, 4, 59, 29, 59 }, /* 78 Mb */
+			70400, 19, 19 }, /* 78 Mb */
 		[30] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 117000,
-			104900, 20, 20, 4, 60, 31, 61 }, /* 117 Mb */
+			104900, 20, 20 }, /* 117 Mb */
 		[31] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS_HGI, 130000,
-			115800, 20, 20, 4, 60, 31, 61 }, /* 130 Mb*/
+			115800, 20, 20 }, /* 130 Mb*/
 		[32] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 156000,
-			137200, 21, 21, 4, 62, 33, 63 }, /* 156 Mb */
+			137200, 21, 21 }, /* 156 Mb */
 		[33] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 173300,
-			151100, 21, 21, 4, 62, 33, 63 }, /* 173.3 Mb */
+			151100, 21, 21 }, /* 173.3 Mb */
 		[34] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 175500,
-			152800, 22, 22, 4, 64, 35, 65 }, /* 175.5 Mb */
+			152800, 22, 22 }, /* 175.5 Mb */
 		[35] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 195000,
-			168400, 22, 22, 4, 64, 35, 65 }, /* 195 Mb*/
+			168400, 22, 22 }, /* 195 Mb*/
 		[36] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 195000,
-			168400, 23, 23, 4, 66, 37, 67 }, /* 195 Mb */
+			168400, 23, 23 }, /* 195 Mb */
 		[37] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 216700,
-			185000, 23, 23, 4, 66, 37, 67 }, /* 216.7 Mb */
+			185000, 23, 23 }, /* 216.7 Mb */
 		[38] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 13500,
-			13200, 0, 0, 0, 38, 38, 38 }, /* 13.5 Mb*/
+			13200, 0, 0 }, /* 13.5 Mb*/
 		[39] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 27500,
-			25900, 1, 1, 2, 39, 39, 39 }, /* 27.0 Mb*/
+			25900, 1, 1 }, /* 27.0 Mb*/
 		[40] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 40500,
-			38600, 2, 2, 2, 40, 40, 40 }, /* 40.5 Mb*/
+			38600, 2, 2 }, /* 40.5 Mb*/
 		[41] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 54000,
-			49800, 3, 3, 4, 41, 41, 41 }, /* 54 Mb */
+			49800, 3, 3 }, /* 54 Mb */
 		[42] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 81500,
-			72200, 4, 4, 4, 42, 42, 42 }, /* 81 Mb */
+			72200, 4, 4 }, /* 81 Mb */
 		[43] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 108000,
-			92900, 5, 5, 4, 43, 43, 43 }, /* 108 Mb */
+			92900, 5, 5 }, /* 108 Mb */
 		[44] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 121500,
-			102700, 6, 6, 4, 44, 44, 44 }, /* 121.5 Mb*/
+			102700, 6, 6 }, /* 121.5 Mb*/
 		[45] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 135000,
-			112000, 7, 7, 4, 45, 46, 46 }, /* 135 Mb */
+			112000, 7, 7 }, /* 135 Mb */
 		[46] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000,
-			122000, 7, 7, 4, 45, 46, 46 }, /* 150 Mb */
+			122000, 7, 7 }, /* 150 Mb */
 		[47] = { RC_INVALID, WLAN_RC_PHY_HT_40_DS, 27000,
-			25800, 8, 8, 0, 47, 47, 47 }, /* 27 Mb */
+			25800, 8, 8 }, /* 27 Mb */
 		[48] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 54000,
-			49800, 9, 9, 2, 48, 48, 48 }, /* 54 Mb */
+			49800, 9, 9 }, /* 54 Mb */
 		[49] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 81000,
-			71900, 10, 10, 2, 49, 49, 49 }, /* 81 Mb */
+			71900, 10, 10 }, /* 81 Mb */
 		[50] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 108000,
-			92500, 11, 11, 4, 50, 50, 50 }, /* 108 Mb */
+			92500, 11, 11 }, /* 108 Mb */
 		[51] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 162000,
-			130300, 12, 12, 4, 51, 51, 51 }, /* 162 Mb */
+			130300, 12, 12 }, /* 162 Mb */
 		[52] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 216000,
-			162800, 13, 13, 4, 52, 52, 52 }, /* 216 Mb */
+			162800, 13, 13 }, /* 216 Mb */
 		[53] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 243000,
-			178200, 14, 14, 4, 53, 53, 53 }, /* 243 Mb */
+			178200, 14, 14 }, /* 243 Mb */
 		[54] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 270000,
-			192100, 15, 15, 4, 54, 55, 55 }, /* 270 Mb */
+			192100, 15, 15 }, /* 270 Mb */
 		[55] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS_HGI, 300000,
-			207000, 15, 15, 4, 54, 55, 55 }, /* 300 Mb */
+			207000, 15, 15 }, /* 300 Mb */
 		[56] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 40500,
-			36100, 16, 16, 0, 56, 56, 56 }, /* 40.5 Mb */
+			36100, 16, 16 }, /* 40.5 Mb */
 		[57] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 81000,
-			72900, 17, 17, 2, 57, 57, 57 }, /* 81 Mb */
+			72900, 17, 17 }, /* 81 Mb */
 		[58] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 121500,
-			108300, 18, 18, 2, 58, 58, 58 }, /* 121.5 Mb */
+			108300, 18, 18 }, /* 121.5 Mb */
 		[59] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 162000,
-			142000, 19, 19, 4, 59, 59, 59 }, /*  162 Mb */
+			142000, 19, 19 }, /*  162 Mb */
 		[60] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 243000,
-			205100, 20, 20, 4, 60, 61, 61 }, /*  243 Mb */
+			205100, 20, 20 }, /*  243 Mb */
 		[61] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS_HGI, 270000,
-			224700, 20, 20, 4, 60, 61, 61 }, /*  270 Mb */
+			224700, 20, 20 }, /*  270 Mb */
 		[62] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 324000,
-			263100, 21, 21, 4, 62, 63, 63 }, /*  324 Mb */
+			263100, 21, 21 }, /*  324 Mb */
 		[63] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 360000,
-			288000, 21, 21, 4, 62, 63, 63 }, /*  360 Mb */
+			288000, 21, 21 }, /*  360 Mb */
 		[64] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 364500,
-			290700, 22, 22, 4, 64, 65, 65 }, /* 364.5 Mb */
+			290700, 22, 22 }, /* 364.5 Mb */
 		[65] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 405000,
-			317200, 22, 22, 4, 64, 65, 65 }, /* 405 Mb */
+			317200, 22, 22 }, /* 405 Mb */
 		[66] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 405000,
-			317200, 23, 23, 4, 66, 67, 67 }, /* 405 Mb */
+			317200, 23, 23 }, /* 405 Mb */
 		[67] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 450000,
-			346400, 23, 23, 4, 66, 67, 67 }, /* 450 Mb */
+			346400, 23, 23 }, /* 450 Mb */
 	},
 	50,  /* probe interval */
 	WLAN_RC_HT_FLAG,  /* Phy rates allowed initially */
@@ -173,149 +173,149 @@ static const struct ath_rate_table ar5416_11ng_ratetable = {
 	12, /* MCS start */
 	{
 		[0] = { RC_ALL, WLAN_RC_PHY_CCK, 1000,
-			900, 0, 2, 0, 0, 0, 0 }, /* 1 Mb */
+			900, 0, 2 }, /* 1 Mb */
 		[1] = { RC_ALL, WLAN_RC_PHY_CCK, 2000,
-			1900, 1, 4, 1, 1, 1, 1 }, /* 2 Mb */
+			1900, 1, 4 }, /* 2 Mb */
 		[2] = { RC_ALL, WLAN_RC_PHY_CCK, 5500,
-			4900, 2, 11, 2, 2, 2, 2 }, /* 5.5 Mb */
+			4900, 2, 11 }, /* 5.5 Mb */
 		[3] = { RC_ALL, WLAN_RC_PHY_CCK, 11000,
-			8100, 3, 22, 3, 3, 3, 3 }, /* 11 Mb */
+			8100, 3, 22 }, /* 11 Mb */
 		[4] = { RC_INVALID, WLAN_RC_PHY_OFDM, 6000,
-			5400, 4, 12, 4, 4, 4, 4 }, /* 6 Mb */
+			5400, 4, 12 }, /* 6 Mb */
 		[5] = { RC_INVALID, WLAN_RC_PHY_OFDM, 9000,
-			7800, 5, 18, 4, 5, 5, 5 }, /* 9 Mb */
+			7800, 5, 18 }, /* 9 Mb */
 		[6] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 12000,
-			10100, 6, 24, 6, 6, 6, 6 }, /* 12 Mb */
+			10100, 6, 24 }, /* 12 Mb */
 		[7] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 18000,
-			14100, 7, 36, 6, 7, 7, 7 }, /* 18 Mb */
+			14100, 7, 36 }, /* 18 Mb */
 		[8] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 24000,
-			17700, 8, 48, 8, 8, 8, 8 }, /* 24 Mb */
+			17700, 8, 48 }, /* 24 Mb */
 		[9] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 36000,
-			23700, 9, 72, 8, 9, 9, 9 }, /* 36 Mb */
+			23700, 9, 72 }, /* 36 Mb */
 		[10] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 48000,
-			27400, 10, 96, 8, 10, 10, 10 }, /* 48 Mb */
+			27400, 10, 96 }, /* 48 Mb */
 		[11] = { RC_L_SDT, WLAN_RC_PHY_OFDM, 54000,
-			30900, 11, 108, 8, 11, 11, 11 }, /* 54 Mb */
+			30900, 11, 108 }, /* 54 Mb */
 		[12] = { RC_INVALID, WLAN_RC_PHY_HT_20_SS, 6500,
-			6400, 0, 0, 4, 42, 12, 42 }, /* 6.5 Mb */
+			6400, 0, 0 }, /* 6.5 Mb */
 		[13] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 13000,
-			12700, 1, 1, 6, 43, 13, 43 }, /* 13 Mb */
+			12700, 1, 1 }, /* 13 Mb */
 		[14] = { RC_HT_SDT_20, WLAN_RC_PHY_HT_20_SS, 19500,
-			18800, 2, 2, 6, 44, 14, 44 }, /* 19.5 Mb*/
+			18800, 2, 2 }, /* 19.5 Mb*/
 		[15] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 26000,
-			25000, 3, 3, 8, 45, 15, 45 }, /* 26 Mb */
+			25000, 3, 3 }, /* 26 Mb */
 		[16] = { RC_HT_SD_20, WLAN_RC_PHY_HT_20_SS, 39000,
-			36700, 4, 4, 8, 46, 16, 46 }, /* 39 Mb */
+			36700, 4, 4 }, /* 39 Mb */
 		[17] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 52000,
-			48100, 5, 5, 8, 47, 17, 47 }, /* 52 Mb */
+			48100, 5, 5 }, /* 52 Mb */
 		[18] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 58500,
-			53500, 6, 6, 8, 48, 18, 48 }, /* 58.5 Mb */
+			53500, 6, 6 }, /* 58.5 Mb */
 		[19] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS, 65000,
-			59000, 7, 7, 8, 49, 20, 50 }, /* 65 Mb */
+			59000, 7, 7 }, /* 65 Mb */
 		[20] = { RC_HT_S_20, WLAN_RC_PHY_HT_20_SS_HGI, 72200,
-			65400, 7, 7, 8, 49, 20, 50 }, /* 65 Mb*/
+			65400, 7, 7 }, /* 65 Mb*/
 		[21] = { RC_INVALID, WLAN_RC_PHY_HT_20_DS, 13000,
-			12700, 8, 8, 4, 51, 21, 51 }, /* 13 Mb */
+			12700, 8, 8 }, /* 13 Mb */
 		[22] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 26000,
-			24800, 9, 9, 6, 52, 22, 52 }, /* 26 Mb */
+			24800, 9, 9 }, /* 26 Mb */
 		[23] = { RC_HT_T_20, WLAN_RC_PHY_HT_20_DS, 39000,
-			36600, 10, 10, 6, 53, 23, 53 }, /* 39 Mb */
+			36600, 10, 10 }, /* 39 Mb */
 		[24] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 52000,
-			48100, 11, 11, 8, 54, 24, 54 }, /* 52 Mb */
+			48100, 11, 11 }, /* 52 Mb */
 		[25] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 78000,
-			69500, 12, 12, 8, 55, 25, 55 }, /* 78 Mb */
+			69500, 12, 12 }, /* 78 Mb */
 		[26] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 104000,
-			89500, 13, 13, 8, 56, 26, 56 }, /* 104 Mb */
+			89500, 13, 13 }, /* 104 Mb */
 		[27] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 117000,
-			98900, 14, 14, 8, 57, 27, 57 }, /* 117 Mb */
+			98900, 14, 14 }, /* 117 Mb */
 		[28] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS, 130000,
-			108300, 15, 15, 8, 58, 29, 59 }, /* 130 Mb */
+			108300, 15, 15 }, /* 130 Mb */
 		[29] = { RC_HT_DT_20, WLAN_RC_PHY_HT_20_DS_HGI, 144400,
-			120000, 15, 15, 8, 58, 29, 59 }, /* 144.4 Mb */
+			120000, 15, 15 }, /* 144.4 Mb */
 		[30] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 19500,
-			17400, 16, 16, 4, 60, 30, 60 }, /* 19.5 Mb */
+			17400, 16, 16 }, /* 19.5 Mb */
 		[31] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 39000,
-			35100, 17, 17, 6, 61, 31, 61 }, /* 39 Mb */
+			35100, 17, 17 }, /* 39 Mb */
 		[32] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 58500,
-			52600, 18, 18, 6, 62, 32, 62 }, /* 58.5 Mb */
+			52600, 18, 18 }, /* 58.5 Mb */
 		[33] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 78000,
-			70400, 19, 19, 8, 63, 33, 63 }, /* 78 Mb */
+			70400, 19, 19 }, /* 78 Mb */
 		[34] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS, 117000,
-			104900, 20, 20, 8, 64, 35, 65 }, /* 117 Mb */
+			104900, 20, 20 }, /* 117 Mb */
 		[35] = {  RC_INVALID, WLAN_RC_PHY_HT_20_TS_HGI, 130000,
-			115800, 20, 20, 8, 64, 35, 65 }, /* 130 Mb */
+			115800, 20, 20 }, /* 130 Mb */
 		[36] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 156000,
-			137200, 21, 21, 8, 66, 37, 67 }, /* 156 Mb */
+			137200, 21, 21 }, /* 156 Mb */
 		[37] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 173300,
-			151100, 21, 21, 8, 66, 37, 67 }, /* 173.3 Mb */
+			151100, 21, 21 }, /* 173.3 Mb */
 		[38] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 175500,
-			152800, 22, 22, 8, 68, 39, 69 }, /* 175.5 Mb */
+			152800, 22, 22 }, /* 175.5 Mb */
 		[39] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 195000,
-			168400, 22, 22, 8, 68, 39, 69 }, /* 195 Mb */
+			168400, 22, 22 }, /* 195 Mb */
 		[40] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS, 195000,
-			168400, 23, 23, 8, 70, 41, 71 }, /* 195 Mb */
+			168400, 23, 23 }, /* 195 Mb */
 		[41] = {  RC_HT_T_20, WLAN_RC_PHY_HT_20_TS_HGI, 216700,
-			185000, 23, 23, 8, 70, 41, 71 }, /* 216.7 Mb */
+			185000, 23, 23 }, /* 216.7 Mb */
 		[42] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 13500,
-			13200, 0, 0, 8, 42, 42, 42 }, /* 13.5 Mb */
+			13200, 0, 0 }, /* 13.5 Mb */
 		[43] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 27500,
-			25900, 1, 1, 8, 43, 43, 43 }, /* 27.0 Mb */
+			25900, 1, 1 }, /* 27.0 Mb */
 		[44] = { RC_HT_SDT_40, WLAN_RC_PHY_HT_40_SS, 40500,
-			38600, 2, 2, 8, 44, 44, 44 }, /* 40.5 Mb */
+			38600, 2, 2 }, /* 40.5 Mb */
 		[45] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 54000,
-			49800, 3, 3, 8, 45, 45, 45 }, /* 54 Mb */
+			49800, 3, 3 }, /* 54 Mb */
 		[46] = { RC_HT_SD_40, WLAN_RC_PHY_HT_40_SS, 81500,
-			72200, 4, 4, 8, 46, 46, 46 }, /* 81 Mb */
+			72200, 4, 4 }, /* 81 Mb */
 		[47] = { RC_HT_S_40 , WLAN_RC_PHY_HT_40_SS, 108000,
-			92900, 5, 5, 8, 47, 47, 47 }, /* 108 Mb */
+			92900, 5, 5 }, /* 108 Mb */
 		[48] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 121500,
-			102700, 6, 6, 8, 48, 48, 48 }, /* 121.5 Mb */
+			102700, 6, 6 }, /* 121.5 Mb */
 		[49] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS, 135000,
-			112000, 7, 7, 8, 49, 50, 50 }, /* 135 Mb */
+			112000, 7, 7 }, /* 135 Mb */
 		[50] = { RC_HT_S_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000,
-			122000, 7, 7, 8, 49, 50, 50 }, /* 150 Mb */
+			122000, 7, 7 }, /* 150 Mb */
 		[51] = { RC_INVALID, WLAN_RC_PHY_HT_40_DS, 27000,
-			25800, 8, 8, 8, 51, 51, 51 }, /* 27 Mb */
+			25800, 8, 8 }, /* 27 Mb */
 		[52] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 54000,
-			49800, 9, 9, 8, 52, 52, 52 }, /* 54 Mb */
+			49800, 9, 9 }, /* 54 Mb */
 		[53] = { RC_HT_T_40, WLAN_RC_PHY_HT_40_DS, 81000,
-			71900, 10, 10, 8, 53, 53, 53 }, /* 81 Mb */
+			71900, 10, 10 }, /* 81 Mb */
 		[54] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 108000,
-			92500, 11, 11, 8, 54, 54, 54 }, /* 108 Mb */
+			92500, 11, 11 }, /* 108 Mb */
 		[55] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 162000,
-			130300, 12, 12, 8, 55, 55, 55 }, /* 162 Mb */
+			130300, 12, 12 }, /* 162 Mb */
 		[56] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 216000,
-			162800, 13, 13, 8, 56, 56, 56 }, /* 216 Mb */
+			162800, 13, 13 }, /* 216 Mb */
 		[57] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 243000,
-			178200, 14, 14, 8, 57, 57, 57 }, /* 243 Mb */
+			178200, 14, 14 }, /* 243 Mb */
 		[58] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS, 270000,
-			192100, 15, 15, 8, 58, 59, 59 }, /* 270 Mb */
+			192100, 15, 15 }, /* 270 Mb */
 		[59] = { RC_HT_DT_40, WLAN_RC_PHY_HT_40_DS_HGI, 300000,
-			207000, 15, 15, 8, 58, 59, 59 }, /* 300 Mb */
+			207000, 15, 15 }, /* 300 Mb */
 		[60] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 40500,
-			36100, 16, 16, 8, 60, 60, 60 }, /* 40.5 Mb */
+			36100, 16, 16 }, /* 40.5 Mb */
 		[61] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 81000,
-			72900, 17, 17, 8, 61, 61, 61 }, /* 81 Mb */
+			72900, 17, 17 }, /* 81 Mb */
 		[62] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 121500,
-			108300, 18, 18, 8, 62, 62, 62 }, /* 121.5 Mb */
+			108300, 18, 18 }, /* 121.5 Mb */
 		[63] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 162000,
-			142000, 19, 19, 8, 63, 63, 63 }, /* 162 Mb */
+			142000, 19, 19 }, /* 162 Mb */
 		[64] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS, 243000,
-			205100, 20, 20, 8, 64, 65, 65 }, /* 243 Mb */
+			205100, 20, 20 }, /* 243 Mb */
 		[65] = {  RC_INVALID, WLAN_RC_PHY_HT_40_TS_HGI, 270000,
-			224700, 20, 20, 8, 64, 65, 65 }, /* 270 Mb */
+			224700, 20, 20 }, /* 270 Mb */
 		[66] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 324000,
-			263100, 21, 21, 8, 66, 67, 67 }, /* 324 Mb */
+			263100, 21, 21 }, /* 324 Mb */
 		[67] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 360000,
-			288000, 21, 21, 8, 66, 67, 67 }, /* 360 Mb */
+			288000, 21, 21 }, /* 360 Mb */
 		[68] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 364500,
-			290700, 22, 22, 8, 68, 69, 69 }, /* 364.5 Mb */
+			290700, 22, 22 }, /* 364.5 Mb */
 		[69] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 405000,
-			317200, 22, 22, 8, 68, 69, 69 }, /* 405 Mb */
+			317200, 22, 22 }, /* 405 Mb */
 		[70] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS, 405000,
-			317200, 23, 23, 8, 70, 71, 71 }, /* 405 Mb */
+			317200, 23, 23 }, /* 405 Mb */
 		[71] = {  RC_HT_T_40, WLAN_RC_PHY_HT_40_TS_HGI, 450000,
-			346400, 23, 23, 8, 70, 71, 71 }, /* 450 Mb */
+			346400, 23, 23 }, /* 450 Mb */
 	},
 	50,  /* probe interval */
 	WLAN_RC_HT_FLAG,  /* Phy rates allowed initially */
@@ -326,21 +326,21 @@ static const struct ath_rate_table ar5416_11a_ratetable = {
 	0,
 	{
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */
-			5400, 0, 12, 0},
+			5400, 0, 12},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */
-			7800,  1, 18, 0},
+			7800,  1, 18},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */
-			10000, 2, 24, 2},
+			10000, 2, 24},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */
-			13900, 3, 36, 2},
+			13900, 3, 36},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */
-			17300, 4, 48, 4},
+			17300, 4, 48},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */
-			23000, 5, 72, 4},
+			23000, 5, 72},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */
-			27400, 6, 96, 4},
+			27400, 6, 96},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
-			29300, 7, 108, 4},
+			29300, 7, 108},
 	},
 	50,  /* probe interval */
 	0,   /* Phy rates allowed initially */
@@ -351,63 +351,62 @@ static const struct ath_rate_table ar5416_11g_ratetable = {
 	0,
 	{
 		{ RC_L_SDT, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */
-			900, 0, 2, 0},
+			900, 0, 2},
 		{ RC_L_SDT, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */
-			1900, 1, 4, 1},
+			1900, 1, 4},
 		{ RC_L_SDT, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */
-			4900, 2, 11, 2},
+			4900, 2, 11},
 		{ RC_L_SDT, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */
-			8100, 3, 22, 3},
+			8100, 3, 22},
 		{ RC_INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */
-			5400, 4, 12, 4},
+			5400, 4, 12},
 		{ RC_INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */
-			7800, 5, 18, 4},
+			7800, 5, 18},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */
-			10000, 6, 24, 6},
+			10000, 6, 24},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */
-			13900, 7, 36, 6},
+			13900, 7, 36},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */
-			17300, 8, 48, 8},
+			17300, 8, 48},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */
-			23000, 9, 72, 8},
+			23000, 9, 72},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */
-			27400, 10, 96, 8},
+			27400, 10, 96},
 		{ RC_L_SDT, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
-			29300, 11, 108, 8},
+			29300, 11, 108},
 	},
 	50,  /* probe interval */
 	0,   /* Phy rates allowed initially */
 };
 
-static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table,
+static int ath_rc_get_rateindex(struct ath_rate_priv *ath_rc_priv,
 				struct ieee80211_tx_rate *rate)
 {
-	int rix = 0, i = 0;
-	static const int mcs_rix_off[] = { 7, 15, 20, 21, 22, 23 };
+	const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
+	int rix, i, idx = 0;
 
 	if (!(rate->flags & IEEE80211_TX_RC_MCS))
 		return rate->idx;
 
-	while (i < ARRAY_SIZE(mcs_rix_off) && rate->idx > mcs_rix_off[i]) {
-		rix++; i++;
+	for (i = 0; i < ath_rc_priv->max_valid_rate; i++) {
+		idx = ath_rc_priv->valid_rate_index[i];
+
+		if (WLAN_RC_PHY_HT(rate_table->info[idx].phy) &&
+		    rate_table->info[idx].ratecode == rate->idx)
+			break;
 	}
 
-	rix += rate->idx + rate_table->mcs_start;
+	rix = idx;
 
-	if ((rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) &&
-	    (rate->flags & IEEE80211_TX_RC_SHORT_GI))
-		rix = rate_table->info[rix].ht_index;
-	else if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
-		rix = rate_table->info[rix].sgi_index;
-	else if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
-		rix = rate_table->info[rix].cw40index;
+	if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
+		rix++;
 
 	return rix;
 }
 
-static void ath_rc_sort_validrates(const struct ath_rate_table *rate_table,
-				   struct ath_rate_priv *ath_rc_priv)
+static void ath_rc_sort_validrates(struct ath_rate_priv *ath_rc_priv)
 {
+	const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
 	u8 i, j, idx, idx_next;
 
 	for (i = ath_rc_priv->max_valid_rate - 1; i > 0; i--) {
@@ -424,21 +423,6 @@ static void ath_rc_sort_validrates(const struct ath_rate_table *rate_table,
 	}
 }
 
-static void ath_rc_init_valid_rate_idx(struct ath_rate_priv *ath_rc_priv)
-{
-	u8 i;
-
-	for (i = 0; i < ath_rc_priv->rate_table_size; i++)
-		ath_rc_priv->valid_rate_index[i] = 0;
-}
-
-static inline void ath_rc_set_valid_rate_idx(struct ath_rate_priv *ath_rc_priv,
-					   u8 index, int valid_tx_rate)
-{
-	BUG_ON(index > ath_rc_priv->rate_table_size);
-	ath_rc_priv->valid_rate_index[index] = !!valid_tx_rate;
-}
-
 static inline
 int ath_rc_get_nextvalid_txrate(const struct ath_rate_table *rate_table,
 				struct ath_rate_priv *ath_rc_priv,
@@ -479,8 +463,7 @@ static int ath_rc_valid_phyrate(u32 phy, u32 capflag, int ignore_cw)
 }
 
 static inline int
-ath_rc_get_lower_rix(const struct ath_rate_table *rate_table,
-		     struct ath_rate_priv *ath_rc_priv,
+ath_rc_get_lower_rix(struct ath_rate_priv *ath_rc_priv,
 		     u8 cur_valid_txrate, u8 *next_idx)
 {
 	int8_t i;
@@ -495,10 +478,9 @@ ath_rc_get_lower_rix(const struct ath_rate_table *rate_table,
 	return 0;
 }
 
-static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv,
-				 const struct ath_rate_table *rate_table,
-				 u32 capflag)
+static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv)
 {
+	const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
 	u8 i, hi = 0;
 
 	for (i = 0; i < rate_table->rate_cnt; i++) {
@@ -506,14 +488,14 @@ static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv,
 			u32 phy = rate_table->info[i].phy;
 			u8 valid_rate_count = 0;
 
-			if (!ath_rc_valid_phyrate(phy, capflag, 0))
+			if (!ath_rc_valid_phyrate(phy, ath_rc_priv->ht_cap, 0))
 				continue;
 
 			valid_rate_count = ath_rc_priv->valid_phy_ratecnt[phy];
 
 			ath_rc_priv->valid_phy_rateidx[phy][valid_rate_count] = i;
 			ath_rc_priv->valid_phy_ratecnt[phy] += 1;
-			ath_rc_set_valid_rate_idx(ath_rc_priv, i, 1);
+			ath_rc_priv->valid_rate_index[i] = true;
 			hi = i;
 		}
 	}
@@ -521,76 +503,73 @@ static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv,
 	return hi;
 }
 
-static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv,
-				const struct ath_rate_table *rate_table,
-				struct ath_rateset *rateset,
-				u32 capflag)
+static inline bool ath_rc_check_legacy(u8 rate, u8 dot11rate, u16 rate_flags,
+				       u32 phy, u32 capflag)
 {
-	u8 i, j, hi = 0;
+	if (rate != dot11rate || WLAN_RC_PHY_HT(phy))
+		return false;
 
-	/* Use intersection of working rates and valid rates */
-	for (i = 0; i < rateset->rs_nrates; i++) {
-		for (j = 0; j < rate_table->rate_cnt; j++) {
-			u32 phy = rate_table->info[j].phy;
-			u16 rate_flags = rate_table->info[j].rate_flags;
-			u8 rate = rateset->rs_rates[i];
-			u8 dot11rate = rate_table->info[j].dot11rate;
-
-			/* We allow a rate only if its valid and the
-			 * capflag matches one of the validity
-			 * (VALID/VALID_20/VALID_40) flags */
-
-			if ((rate == dot11rate) &&
-			    (rate_flags & WLAN_RC_CAP_MODE(capflag)) ==
-			    WLAN_RC_CAP_MODE(capflag) &&
-			    (rate_flags & WLAN_RC_CAP_STREAM(capflag)) &&
-			    !WLAN_RC_PHY_HT(phy)) {
-				u8 valid_rate_count = 0;
-
-				if (!ath_rc_valid_phyrate(phy, capflag, 0))
-					continue;
-
-				valid_rate_count =
-					ath_rc_priv->valid_phy_ratecnt[phy];
-
-				ath_rc_priv->valid_phy_rateidx[phy]
-					[valid_rate_count] = j;
-				ath_rc_priv->valid_phy_ratecnt[phy] += 1;
-				ath_rc_set_valid_rate_idx(ath_rc_priv, j, 1);
-				hi = max(hi, j);
-			}
-		}
-	}
+	if ((rate_flags & WLAN_RC_CAP_MODE(capflag)) != WLAN_RC_CAP_MODE(capflag))
+		return false;
 
-	return hi;
+	if (!(rate_flags & WLAN_RC_CAP_STREAM(capflag)))
+		return false;
+
+	return true;
 }
 
-static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv,
-				  const struct ath_rate_table *rate_table,
-				  struct ath_rateset *rateset, u32 capflag)
+static inline bool ath_rc_check_ht(u8 rate, u8 dot11rate, u16 rate_flags,
+				   u32 phy, u32 capflag)
 {
-	u8 i, j, hi = 0;
+	if (rate != dot11rate || !WLAN_RC_PHY_HT(phy))
+		return false;
+
+	if (!WLAN_RC_PHY_HT_VALID(rate_flags, capflag))
+		return false;
+
+	if (!(rate_flags & WLAN_RC_CAP_STREAM(capflag)))
+		return false;
+
+	return true;
+}
+
+static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv, bool legacy)
+{
+	const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
+	struct ath_rateset *rateset;
+	u32 phy, capflag = ath_rc_priv->ht_cap;
+	u16 rate_flags;
+	u8 i, j, hi = 0, rate, dot11rate, valid_rate_count;
+
+	if (legacy)
+		rateset = &ath_rc_priv->neg_rates;
+	else
+		rateset = &ath_rc_priv->neg_ht_rates;
 
-	/* Use intersection of working rates and valid rates */
 	for (i = 0; i < rateset->rs_nrates; i++) {
 		for (j = 0; j < rate_table->rate_cnt; j++) {
-			u32 phy = rate_table->info[j].phy;
-			u16 rate_flags = rate_table->info[j].rate_flags;
-			u8 rate = rateset->rs_rates[i];
-			u8 dot11rate = rate_table->info[j].dot11rate;
-
-			if ((rate != dot11rate) || !WLAN_RC_PHY_HT(phy) ||
-			    !(rate_flags & WLAN_RC_CAP_STREAM(capflag)) ||
-			    !WLAN_RC_PHY_HT_VALID(rate_flags, capflag))
+			phy = rate_table->info[j].phy;
+			rate_flags = rate_table->info[j].rate_flags;
+			rate = rateset->rs_rates[i];
+			dot11rate = rate_table->info[j].dot11rate;
+
+			if (legacy &&
+			    !ath_rc_check_legacy(rate, dot11rate,
+						 rate_flags, phy, capflag))
+				continue;
+
+			if (!legacy &&
+			    !ath_rc_check_ht(rate, dot11rate,
+					     rate_flags, phy, capflag))
 				continue;
 
 			if (!ath_rc_valid_phyrate(phy, capflag, 0))
 				continue;
 
-			ath_rc_priv->valid_phy_rateidx[phy]
-				[ath_rc_priv->valid_phy_ratecnt[phy]] = j;
+			valid_rate_count = ath_rc_priv->valid_phy_ratecnt[phy];
+			ath_rc_priv->valid_phy_rateidx[phy][valid_rate_count] = j;
 			ath_rc_priv->valid_phy_ratecnt[phy] += 1;
-			ath_rc_set_valid_rate_idx(ath_rc_priv, j, 1);
+			ath_rc_priv->valid_rate_index[j] = true;
 			hi = max(hi, j);
 		}
 	}
@@ -598,13 +577,10 @@ static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv,
 	return hi;
 }
 
-/* Finds the highest rate index we can use */
-static u8 ath_rc_get_highest_rix(struct ath_softc *sc,
-			         struct ath_rate_priv *ath_rc_priv,
-				 const struct ath_rate_table *rate_table,
-				 int *is_probing,
-				 bool legacy)
+static u8 ath_rc_get_highest_rix(struct ath_rate_priv *ath_rc_priv,
+				 int *is_probing)
 {
+	const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
 	u32 best_thruput, this_thruput, now_msec;
 	u8 rate, next_rate, best_rate, maxindex, minindex;
 	int8_t index = 0;
@@ -624,8 +600,6 @@ static u8 ath_rc_get_highest_rix(struct ath_softc *sc,
 		u8 per_thres;
 
 		rate = ath_rc_priv->valid_rate_index[index];
-		if (legacy && !(rate_table->info[rate].rate_flags & RC_LEGACY))
-			continue;
 		if (rate > ath_rc_priv->rate_max_phy)
 			continue;
 
@@ -707,8 +681,6 @@ static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table,
 	rate->count = tries;
 	rate->idx = rate_table->info[rix].ratecode;
 
-	if (txrc->short_preamble)
-		rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
 	if (txrc->rts || rtsctsenable)
 		rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;
 
@@ -726,37 +698,25 @@ static void ath_rc_rate_set_rtscts(struct ath_softc *sc,
 				   const struct ath_rate_table *rate_table,
 				   struct ieee80211_tx_info *tx_info)
 {
-	struct ieee80211_tx_rate *rates = tx_info->control.rates;
-	int i = 0, rix = 0, cix, enable_g_protection = 0;
+	struct ieee80211_bss_conf *bss_conf;
 
-	/* get the cix for the lowest valid rix */
-	for (i = 3; i >= 0; i--) {
-		if (rates[i].count && (rates[i].idx >= 0)) {
-			rix = ath_rc_get_rateindex(rate_table, &rates[i]);
-			break;
-		}
-	}
-	cix = rate_table->info[rix].ctrl_rate;
+	if (!tx_info->control.vif)
+		return;
+	/*
+	 * For legacy frames, mac80211 takes care of CTS protection.
+	 */
+	if (!(tx_info->control.rates[0].flags & IEEE80211_TX_RC_MCS))
+		return;
 
-	/* All protection frames are transmited at 2Mb/s for 802.11g,
-	 * otherwise we transmit them at 1Mb/s */
-	if (sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ &&
-	    !conf_is_ht(&sc->hw->conf))
-		enable_g_protection = 1;
+	bss_conf = &tx_info->control.vif->bss_conf;
+
+	if (!bss_conf->basic_rates)
+		return;
 
 	/*
-	 * If 802.11g protection is enabled, determine whether to use RTS/CTS or
-	 * just CTS.  Note that this is only done for OFDM/HT unicast frames.
+	 * For now, use the lowest allowed basic rate for HT frames.
 	 */
-	if ((tx_info->control.vif &&
-	     tx_info->control.vif->bss_conf.use_cts_prot) &&
-	    (rate_table->info[rix].phy == WLAN_RC_PHY_OFDM ||
-	     WLAN_RC_PHY_HT(rate_table->info[rix].phy))) {
-		rates[0].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT;
-		cix = rate_table->info[enable_g_protection].ctrl_rate;
-	}
-
-	tx_info->control.rts_cts_rate_idx = cix;
+	tx_info->control.rts_cts_rate_idx = __ffs(bss_conf->basic_rates);
 }
 
 static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
@@ -789,14 +749,8 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 	try_per_rate = 4;
 
 	rate_table = ath_rc_priv->rate_table;
-	rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table,
-				     &is_probe, false);
+	rix = ath_rc_get_highest_rix(ath_rc_priv, &is_probe);
 
-	/*
-	 * If we're in HT mode and both us and our peer supports LDPC.
-	 * We don't need to check our own device's capabilities as our own
-	 * ht capabilities would have already been intersected with our peer's.
-	 */
 	if (conf_is_ht(&sc->hw->conf) &&
 	    (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING))
 		tx_info->flags |= IEEE80211_TX_CTL_LDPC;
@@ -806,52 +760,45 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 		tx_info->flags |= (1 << IEEE80211_TX_CTL_STBC_SHIFT);
 
 	if (is_probe) {
-		/* set one try for probe rates. For the
-		 * probes don't enable rts */
+		/*
+		 * Set one try for probe rates. For the
+		 * probes don't enable RTS.
+		 */
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
 				       1, rix, 0);
-
-		/* Get the next tried/allowed rate. No RTS for the next series
-		 * after the probe rate
+		/*
+		 * Get the next tried/allowed rate.
+		 * No RTS for the next series after the probe rate.
 		 */
-		ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
+		ath_rc_get_lower_rix(ath_rc_priv, rix, &rix);
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
 				       try_per_rate, rix, 0);
 
 		tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 	} else {
-		/* Set the chosen rate. No RTS for first series entry. */
+		/*
+		 * Set the chosen rate. No RTS for first series entry.
+		 */
 		ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
 				       try_per_rate, rix, 0);
 	}
 
-	/* Fill in the other rates for multirate retry */
-	for ( ; i < 3; i++) {
+	for ( ; i < 4; i++) {
+		/*
+		 * Use twice the number of tries for the last MRR segment.
+		 */
+		if (i + 1 == 4)
+			try_per_rate = 8;
+
+		ath_rc_get_lower_rix(ath_rc_priv, rix, &rix);
 
-		ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
-		/* All other rates in the series have RTS enabled */
+		/*
+		 * All other rates in the series have RTS enabled.
+		 */
 		ath_rc_rate_set_series(rate_table, &rates[i], txrc,
 				       try_per_rate, rix, 1);
 	}
 
-	/* Use twice the number of tries for the last MRR segment. */
-	try_per_rate = 8;
-
-	/*
-	 * If the last rate in the rate series is MCS and has
-	 * more than 80% of per thresh, then use a legacy rate
-	 * as last retry to ensure that the frame is tried in both
-	 * MCS and legacy rate.
-	 */
-	ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
-	if (WLAN_RC_PHY_HT(rate_table->info[rix].phy) &&
-	    (ath_rc_priv->per[rix] > 45))
-		rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table,
-				&is_probe, true);
-
-	/* All other rates in the series have RTS enabled */
-	ath_rc_rate_set_series(rate_table, &rates[i], txrc,
-			       try_per_rate, rix, 1);
 	/*
 	 * NB:Change rate series to enable aggregation when operating
 	 * at lower MCS rates. When first rate in series is MCS2
@@ -893,7 +840,6 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 		rates[0].count = ATH_TXMAXTRY;
 	}
 
-	/* Setup RTS/CTS */
 	ath_rc_rate_set_rtscts(sc, rate_table, tx_info);
 }
 
@@ -1046,9 +992,6 @@ static void ath_debug_stat_retries(struct ath_rate_priv *rc, int rix,
 	stats->per = per;
 }
 
-/* Update PER, RSSI and whatever else that the code thinks it is doing.
-   If you can make sense of all this, you really need to go out more. */
-
 static void ath_rc_update_ht(struct ath_softc *sc,
 			     struct ath_rate_priv *ath_rc_priv,
 			     struct ieee80211_tx_info *tx_info,
@@ -1077,8 +1020,8 @@ static void ath_rc_update_ht(struct ath_softc *sc,
 	if (ath_rc_priv->per[tx_rate] >= 55 && tx_rate > 0 &&
 	    rate_table->info[tx_rate].ratekbps <=
 	    rate_table->info[ath_rc_priv->rate_max_phy].ratekbps) {
-		ath_rc_get_lower_rix(rate_table, ath_rc_priv,
-				     (u8)tx_rate, &ath_rc_priv->rate_max_phy);
+		ath_rc_get_lower_rix(ath_rc_priv, (u8)tx_rate,
+				     &ath_rc_priv->rate_max_phy);
 
 		/* Don't probe for a little while. */
 		ath_rc_priv->probe_time = now_msec;
@@ -1122,25 +1065,42 @@ static void ath_rc_update_ht(struct ath_softc *sc,
 
 }
 
+static void ath_debug_stat_rc(struct ath_rate_priv *rc, int final_rate)
+{
+	struct ath_rc_stats *stats;
+
+	stats = &rc->rcstats[final_rate];
+	stats->success++;
+}
 
 static void ath_rc_tx_status(struct ath_softc *sc,
 			     struct ath_rate_priv *ath_rc_priv,
-			     struct ieee80211_tx_info *tx_info,
-			     int final_ts_idx, int xretries, int long_retry)
+			     struct sk_buff *skb)
 {
-	const struct ath_rate_table *rate_table;
+	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_tx_rate *rates = tx_info->status.rates;
+	struct ieee80211_tx_rate *rate;
+	int final_ts_idx = 0, xretries = 0, long_retry = 0;
 	u8 flags;
 	u32 i = 0, rix;
 
-	rate_table = ath_rc_priv->rate_table;
+	for (i = 0; i < sc->hw->max_rates; i++) {
+		rate = &tx_info->status.rates[i];
+		if (rate->idx < 0 || !rate->count)
+			break;
+
+		final_ts_idx = i;
+		long_retry = rate->count - 1;
+	}
+
+	if (!(tx_info->flags & IEEE80211_TX_STAT_ACK))
+		xretries = 1;
 
 	/*
 	 * If the first rate is not the final index, there
 	 * are intermediate rate failures to be processed.
 	 */
 	if (final_ts_idx != 0) {
-		/* Process intermediate rates that failed.*/
 		for (i = 0; i < final_ts_idx ; i++) {
 			if (rates[i].count != 0 && (rates[i].idx >= 0)) {
 				flags = rates[i].flags;
@@ -1152,32 +1112,24 @@ static void ath_rc_tx_status(struct ath_softc *sc,
 				    !(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG))
 					return;
 
-				rix = ath_rc_get_rateindex(rate_table, &rates[i]);
+				rix = ath_rc_get_rateindex(ath_rc_priv, &rates[i]);
 				ath_rc_update_ht(sc, ath_rc_priv, tx_info,
-						rix, xretries ? 1 : 2,
-						rates[i].count);
+						 rix, xretries ? 1 : 2,
+						 rates[i].count);
 			}
 		}
-	} else {
-		/*
-		 * Handle the special case of MIMO PS burst, where the second
-		 * aggregate is sent out with only one rate and one try.
-		 * Treating it as an excessive retry penalizes the rate
-		 * inordinately.
-		 */
-		if (rates[0].count == 1 && xretries == 1)
-			xretries = 2;
 	}
 
-	flags = rates[i].flags;
+	flags = rates[final_ts_idx].flags;
 
 	/* If HT40 and we have switched mode from 40 to 20 => don't update */
 	if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) &&
 	    !(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG))
 		return;
 
-	rix = ath_rc_get_rateindex(rate_table, &rates[i]);
+	rix = ath_rc_get_rateindex(ath_rc_priv, &rates[final_ts_idx]);
 	ath_rc_update_ht(sc, ath_rc_priv, tx_info, rix, xretries, long_retry);
+	ath_debug_stat_rc(ath_rc_priv, rix);
 }
 
 static const
@@ -1185,8 +1137,6 @@ struct ath_rate_table *ath_choose_rate_table(struct ath_softc *sc,
 					     enum ieee80211_band band,
 					     bool is_ht)
 {
-	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-
 	switch(band) {
 	case IEEE80211_BAND_2GHZ:
 		if (is_ht)
@@ -1197,34 +1147,25 @@ struct ath_rate_table *ath_choose_rate_table(struct ath_softc *sc,
 			return &ar5416_11na_ratetable;
 		return &ar5416_11a_ratetable;
 	default:
-		ath_dbg(common, CONFIG, "Invalid band\n");
 		return NULL;
 	}
 }
 
 static void ath_rc_init(struct ath_softc *sc,
-			struct ath_rate_priv *ath_rc_priv,
-			struct ieee80211_supported_band *sband,
-			struct ieee80211_sta *sta,
-			const struct ath_rate_table *rate_table)
+			struct ath_rate_priv *ath_rc_priv)
 {
+	const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
 	struct ath_rateset *rateset = &ath_rc_priv->neg_rates;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	struct ath_rateset *ht_mcs = &ath_rc_priv->neg_ht_rates;
 	u8 i, j, k, hi = 0, hthi = 0;
 
-	/* Initial rate table size. Will change depending
-	 * on the working rate set */
 	ath_rc_priv->rate_table_size = RATE_TABLE_SIZE;
 
-	/* Initialize thresholds according to the global rate table */
 	for (i = 0 ; i < ath_rc_priv->rate_table_size; i++) {
 		ath_rc_priv->per[i] = 0;
+		ath_rc_priv->valid_rate_index[i] = 0;
 	}
 
-	/* Determine the valid rates */
-	ath_rc_init_valid_rate_idx(ath_rc_priv);
-
 	for (i = 0; i < WLAN_RC_PHY_MAX; i++) {
 		for (j = 0; j < RATE_TABLE_SIZE; j++)
 			ath_rc_priv->valid_phy_rateidx[i][j] = 0;
@@ -1232,25 +1173,19 @@ static void ath_rc_init(struct ath_softc *sc,
 	}
 
 	if (!rateset->rs_nrates) {
-		/* No working rate, just initialize valid rates */
-		hi = ath_rc_init_validrates(ath_rc_priv, rate_table,
-					    ath_rc_priv->ht_cap);
+		hi = ath_rc_init_validrates(ath_rc_priv);
 	} else {
-		/* Use intersection of working rates and valid rates */
-		hi = ath_rc_setvalid_rates(ath_rc_priv, rate_table,
-					   rateset, ath_rc_priv->ht_cap);
-		if (ath_rc_priv->ht_cap & WLAN_RC_HT_FLAG) {
-			hthi = ath_rc_setvalid_htrates(ath_rc_priv,
-						       rate_table,
-						       ht_mcs,
-						       ath_rc_priv->ht_cap);
-		}
+		hi = ath_rc_setvalid_rates(ath_rc_priv, true);
+
+		if (ath_rc_priv->ht_cap & WLAN_RC_HT_FLAG)
+			hthi = ath_rc_setvalid_rates(ath_rc_priv, false);
+
 		hi = max(hi, hthi);
 	}
 
 	ath_rc_priv->rate_table_size = hi + 1;
 	ath_rc_priv->rate_max_phy = 0;
-	BUG_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
+	WARN_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
 
 	for (i = 0, k = 0; i < WLAN_RC_PHY_MAX; i++) {
 		for (j = 0; j < ath_rc_priv->valid_phy_ratecnt[i]; j++) {
@@ -1258,28 +1193,26 @@ static void ath_rc_init(struct ath_softc *sc,
 				ath_rc_priv->valid_phy_rateidx[i][j];
 		}
 
-		if (!ath_rc_valid_phyrate(i, rate_table->initial_ratemax, 1)
-		    || !ath_rc_priv->valid_phy_ratecnt[i])
+		if (!ath_rc_valid_phyrate(i, rate_table->initial_ratemax, 1) ||
+		    !ath_rc_priv->valid_phy_ratecnt[i])
 			continue;
 
 		ath_rc_priv->rate_max_phy = ath_rc_priv->valid_phy_rateidx[i][j-1];
 	}
-	BUG_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
-	BUG_ON(k > RATE_TABLE_SIZE);
+	WARN_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
+	WARN_ON(k > RATE_TABLE_SIZE);
 
 	ath_rc_priv->max_valid_rate = k;
-	ath_rc_sort_validrates(rate_table, ath_rc_priv);
+	ath_rc_sort_validrates(ath_rc_priv);
 	ath_rc_priv->rate_max_phy = (k > 4) ?
-					ath_rc_priv->valid_rate_index[k-4] :
-					ath_rc_priv->valid_rate_index[k-1];
-	ath_rc_priv->rate_table = rate_table;
+		ath_rc_priv->valid_rate_index[k-4] :
+		ath_rc_priv->valid_rate_index[k-1];
 
 	ath_dbg(common, CONFIG, "RC Initialized with capabilities: 0x%x\n",
 		ath_rc_priv->ht_cap);
 }
 
-static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta,
-			       bool is_cw40, bool is_sgi)
+static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta)
 {
 	u8 caps = 0;
 
@@ -1289,10 +1222,14 @@ static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta,
 			caps |= WLAN_RC_TS_FLAG | WLAN_RC_DS_FLAG;
 		else if (sta->ht_cap.mcs.rx_mask[1])
 			caps |= WLAN_RC_DS_FLAG;
-		if (is_cw40)
+		if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
 			caps |= WLAN_RC_40_FLAG;
-		if (is_sgi)
-			caps |= WLAN_RC_SGI_FLAG;
+			if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)
+				caps |= WLAN_RC_SGI_FLAG;
+		} else {
+			if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20)
+				caps |= WLAN_RC_SGI_FLAG;
+		}
 	}
 
 	return caps;
@@ -1319,15 +1256,6 @@ static bool ath_tx_aggr_check(struct ath_softc *sc, struct ieee80211_sta *sta,
 /* mac80211 Rate Control callbacks */
 /***********************************/
 
-static void ath_debug_stat_rc(struct ath_rate_priv *rc, int final_rate)
-{
-	struct ath_rc_stats *stats;
-
-	stats = &rc->rcstats[final_rate];
-	stats->success++;
-}
-
-
 static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
 			  struct ieee80211_sta *sta, void *priv_sta,
 			  struct sk_buff *skb)
@@ -1335,22 +1263,8 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
 	struct ath_softc *sc = priv;
 	struct ath_rate_priv *ath_rc_priv = priv_sta;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_hdr *hdr;
-	int final_ts_idx = 0, tx_status = 0;
-	int long_retry = 0;
-	__le16 fc;
-	int i;
-
-	hdr = (struct ieee80211_hdr *)skb->data;
-	fc = hdr->frame_control;
-	for (i = 0; i < sc->hw->max_rates; i++) {
-		struct ieee80211_tx_rate *rate = &tx_info->status.rates[i];
-		if (rate->idx < 0 || !rate->count)
-			break;
-
-		final_ts_idx = i;
-		long_retry = rate->count - 1;
-	}
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	__le16 fc = hdr->frame_control;
 
 	if (!priv_sta || !ieee80211_is_data(fc))
 		return;
@@ -1363,11 +1277,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
 	if (tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED)
 		return;
 
-	if (!(tx_info->flags & IEEE80211_TX_STAT_ACK))
-		tx_status = 1;
-
-	ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status,
-			 long_retry);
+	ath_rc_tx_status(sc, ath_rc_priv, skb);
 
 	/* Check if aggregation has to be enabled for this tid */
 	if (conf_is_ht(&sc->hw->conf) &&
@@ -1383,19 +1293,14 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
 				ieee80211_start_tx_ba_session(sta, tid, 0);
 		}
 	}
-
-	ath_debug_stat_rc(ath_rc_priv,
-		ath_rc_get_rateindex(ath_rc_priv->rate_table,
-			&tx_info->status.rates[final_ts_idx]));
 }
 
 static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
                           struct ieee80211_sta *sta, void *priv_sta)
 {
 	struct ath_softc *sc = priv;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath_rate_priv *ath_rc_priv = priv_sta;
-	const struct ath_rate_table *rate_table;
-	bool is_cw40, is_sgi = false;
 	int i, j = 0;
 
 	for (i = 0; i < sband->n_bitrates; i++) {
@@ -1417,20 +1322,15 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
 		ath_rc_priv->neg_ht_rates.rs_nrates = j;
 	}
 
-	is_cw40 = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
-
-	if (is_cw40)
-		is_sgi = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40);
-	else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
-		is_sgi = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20);
-
-	/* Choose rate table first */
-
-	rate_table = ath_choose_rate_table(sc, sband->band,
-	                      sta->ht_cap.ht_supported);
+	ath_rc_priv->rate_table = ath_choose_rate_table(sc, sband->band,
+							sta->ht_cap.ht_supported);
+	if (!ath_rc_priv->rate_table) {
+		ath_err(common, "No rate table chosen\n");
+		return;
+	}
 
-	ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi);
-	ath_rc_init(sc, priv_sta, sband, sta, rate_table);
+	ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta);
+	ath_rc_init(sc, priv_sta);
 }
 
 static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
@@ -1439,40 +1339,14 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 {
 	struct ath_softc *sc = priv;
 	struct ath_rate_priv *ath_rc_priv = priv_sta;
-	const struct ath_rate_table *rate_table = NULL;
-	bool oper_cw40 = false, oper_sgi;
-	bool local_cw40 = !!(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG);
-	bool local_sgi = !!(ath_rc_priv->ht_cap & WLAN_RC_SGI_FLAG);
-
-	/* FIXME: Handle AP mode later when we support CWM */
 
 	if (changed & IEEE80211_RC_BW_CHANGED) {
-		if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
-			return;
-
-		if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
-			oper_cw40 = true;
-
-		if (oper_cw40)
-			oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?
-				   true : false;
-		else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
-			oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ?
-				   true : false;
-		else
-			oper_sgi = false;
-
-		if ((local_cw40 != oper_cw40) || (local_sgi != oper_sgi)) {
-			rate_table = ath_choose_rate_table(sc, sband->band,
-						   sta->ht_cap.ht_supported);
-			ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta,
-						   oper_cw40, oper_sgi);
-			ath_rc_init(sc, priv_sta, sband, sta, rate_table);
-
-			ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG,
-				"Operating HT Bandwidth changed to: %d\n",
-				sc->hw->conf.channel_type);
-		}
+		ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta);
+		ath_rc_init(sc, priv_sta);
+
+		ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG,
+			"Operating HT Bandwidth changed to: %d\n",
+			sc->hw->conf.channel_type);
 	}
 }
 
@@ -1484,7 +1358,7 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
 	struct ath_rate_priv *rc = file->private_data;
 	char *buf;
 	unsigned int len = 0, max;
-	int i = 0;
+	int rix;
 	ssize_t retval;
 
 	if (rc->rate_table == NULL)
@@ -1500,7 +1374,8 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
 		       "HT", "MCS", "Rate",
 		       "Success", "Retries", "XRetries", "PER");
 
-	for (i = 0; i < rc->rate_table_size; i++) {
+	for (rix = 0; rix < rc->max_valid_rate; rix++) {
+		u8 i = rc->valid_rate_index[rix];
 		u32 ratekbps = rc->rate_table->info[i].ratekbps;
 		struct ath_rc_stats *stats = &rc->rcstats[i];
 		char mcs[5];
diff --git a/drivers/net/wireless/ath/ath9k/rc.h b/drivers/net/wireless/ath/ath9k/rc.h
index 75f8e9b06b2..268e67dc5fb 100644
--- a/drivers/net/wireless/ath/ath9k/rc.h
+++ b/drivers/net/wireless/ath/ath9k/rc.h
@@ -160,10 +160,6 @@ struct ath_rate_table {
 		u32 user_ratekbps;
 		u8 ratecode;
 		u8 dot11rate;
-		u8 ctrl_rate;
-		u8 cw40index;
-		u8 sgi_index;
-		u8 ht_index;
 	} info[RATE_TABLE_SIZE];
 	u32 probe_interval;
 	u8 initial_ratemax;
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 12aca02228c..83d16e7ed27 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -424,8 +424,8 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
 		rfilt |= ATH9K_RX_FILTER_COMP_BAR;
 
 	if (sc->nvifs > 1 || (sc->rx.rxfilter & FIF_OTHER_BSS)) {
-		/* The following may also be needed for other older chips */
-		if (sc->sc_ah->hw_version.macVersion == AR_SREV_VERSION_9160)
+		/* This is needed for older chips */
+		if (sc->sc_ah->hw_version.macVersion <= AR_SREV_VERSION_9160)
 			rfilt |= ATH9K_RX_FILTER_PROM;
 		rfilt |= ATH9K_RX_FILTER_MCAST_BCAST_ALL;
 	}
@@ -1044,7 +1044,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
 	struct ieee80211_hw *hw = sc->hw;
 	struct ieee80211_hdr *hdr;
 	int retval;
-	bool decrypt_error = false;
 	struct ath_rx_status rs;
 	enum ath9k_rx_qtype qtype;
 	bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
@@ -1066,6 +1065,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
 	tsf_lower = tsf & 0xffffffff;
 
 	do {
+		bool decrypt_error = false;
 		/* If handling rx interrupt and flush is in progress => exit */
 		if (test_bit(SC_OP_RXFLUSH, &sc->sc_flags) && (flush == 0))
 			break;
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 87cac8eb783..4e6760f8596 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -801,6 +801,8 @@
 #define AR_SREV_REVISION_9580_10	4 /* AR9580 1.0 */
 #define AR_SREV_VERSION_9462		0x280
 #define AR_SREV_REVISION_9462_20	2
+#define AR_SREV_VERSION_9565            0x2C0
+#define AR_SREV_REVISION_9565_10        0
 #define AR_SREV_VERSION_9550		0x400
 
 #define AR_SREV_5416(_ah) \
@@ -909,6 +911,13 @@
 	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \
 	((_ah)->hw_version.macRev >= AR_SREV_REVISION_9462_20))
 
+#define AR_SREV_9565(_ah) \
+	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9565))
+
+#define AR_SREV_9565_10(_ah) \
+	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9565) && \
+	 ((_ah)->hw_version.macRev == AR_SREV_REVISION_9565_10))
+
 #define AR_SREV_9550(_ah) \
 	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9550))
 
diff --git a/drivers/net/wireless/ath/ath9k/wow.c b/drivers/net/wireless/ath/ath9k/wow.c
index 44a08eb53c6..a483d518758 100644
--- a/drivers/net/wireless/ath/ath9k/wow.c
+++ b/drivers/net/wireless/ath/ath9k/wow.c
@@ -497,7 +497,7 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 
 	REG_RMW(ah, AR_PCIE_PM_CTRL, set, clr);
 
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		/*
 		 * this is needed to prevent the chip waking up
 		 * the host within 3-4 seconds with certain
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 2c9da6b2ecb..36618e3a5e6 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -568,7 +568,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
 		if (!an->sleeping) {
 			ath_tx_queue_tid(txq, tid);
 
-			if (ts->ts_status & ATH9K_TXERR_FILT)
+			if (ts->ts_status & (ATH9K_TXERR_FILT | ATH9K_TXERR_XRETRY))
 				tid->ac->clear_ps_filter = true;
 		}
 	}
@@ -1773,11 +1773,12 @@ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
 	TX_STAT_INC(txq->axq_qnum, queued);
 }
 
-static void setup_frame_info(struct ieee80211_hw *hw, struct sk_buff *skb,
+static void setup_frame_info(struct ieee80211_hw *hw,
+			     struct ieee80211_sta *sta,
+			     struct sk_buff *skb,
 			     int framelen)
 {
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_sta *sta = tx_info->control.sta;
 	struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	const struct ieee80211_rate *rate;
@@ -1819,10 +1820,14 @@ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath9k_channel *curchan = ah->curchan;
+
 	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) &&
 	    (curchan->channelFlags & CHANNEL_5GHZ) &&
 	    (chainmask == 0x7) && (rate < 0x90))
 		return 0x3;
+	else if (AR_SREV_9462(ah) && ath9k_hw_btcoex_is_enabled(ah) &&
+		 IS_CCK_RATE(rate))
+		return 0x2;
 	else
 		return chainmask;
 }
@@ -1935,7 +1940,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_sta *sta = info->control.sta;
+	struct ieee80211_sta *sta = txctl->sta;
 	struct ieee80211_vif *vif = info->control.vif;
 	struct ath_softc *sc = hw->priv;
 	struct ath_txq *txq = txctl->txq;
@@ -1979,7 +1984,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 	    !ieee80211_is_data(hdr->frame_control))
 		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
 
-	setup_frame_info(hw, skb, frmlen);
+	setup_frame_info(hw, sta, skb, frmlen);
 
 	/*
 	 * At this point, the vif, hw_key and sta pointers in the tx control
@@ -2018,6 +2023,9 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 
 	ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb);
 
+	if (sc->sc_ah->caldata)
+		sc->sc_ah->caldata->paprd_packet_sent = true;
+
 	if (!(tx_flags & ATH_TX_ERROR))
 		/* Frame was ACKed */
 		tx_info->flags |= IEEE80211_TX_STAT_ACK;
diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index 376be11161c..2aa4a59c72c 100644
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -425,6 +425,7 @@ struct ar9170 {
 	bool rx_has_plcp;
 	struct sk_buff *rx_failover;
 	int rx_failover_missing;
+	u32 ampdu_ref;
 
 	/* FIFO for collecting outstanding BlockAckRequest */
 	struct list_head bar_list[__AR9170_NUM_TXQ];
@@ -577,7 +578,9 @@ void carl9170_rx(struct ar9170 *ar, void *buf, unsigned int len);
 void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len);
 
 /* TX */
-void carl9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
+void carl9170_op_tx(struct ieee80211_hw *hw,
+		    struct ieee80211_tx_control *control,
+		    struct sk_buff *skb);
 void carl9170_tx_janitor(struct work_struct *work);
 void carl9170_tx_process_status(struct ar9170 *ar,
 				const struct carl9170_rsp *cmd);
diff --git a/drivers/net/wireless/ath/carl9170/fw.c b/drivers/net/wireless/ath/carl9170/fw.c
index c5ca6f1f583..24ac2876a73 100644
--- a/drivers/net/wireless/ath/carl9170/fw.c
+++ b/drivers/net/wireless/ath/carl9170/fw.c
@@ -341,6 +341,7 @@ static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len)
 		if (SUPP(CARL9170FW_WLANTX_CAB)) {
 			if_comb_types |=
 				BIT(NL80211_IFTYPE_AP) |
+				BIT(NL80211_IFTYPE_MESH_POINT) |
 				BIT(NL80211_IFTYPE_P2P_GO);
 		}
 	}
diff --git a/drivers/net/wireless/ath/carl9170/mac.c b/drivers/net/wireless/ath/carl9170/mac.c
index 53415bfd8be..e3b1b6e8776 100644
--- a/drivers/net/wireless/ath/carl9170/mac.c
+++ b/drivers/net/wireless/ath/carl9170/mac.c
@@ -304,7 +304,8 @@ int carl9170_set_operating_mode(struct ar9170 *ar)
 	struct ath_common *common = &ar->common;
 	u8 *mac_addr, *bssid;
 	u32 cam_mode = AR9170_MAC_CAM_DEFAULTS;
-	u32 enc_mode = AR9170_MAC_ENCRYPTION_DEFAULTS;
+	u32 enc_mode = AR9170_MAC_ENCRYPTION_DEFAULTS |
+		AR9170_MAC_ENCRYPTION_MGMT_RX_SOFTWARE;
 	u32 rx_ctrl = AR9170_MAC_RX_CTRL_DEAGG |
 		      AR9170_MAC_RX_CTRL_SHORT_FILTER;
 	u32 sniffer = AR9170_MAC_SNIFFER_DEFAULTS;
@@ -318,10 +319,10 @@ int carl9170_set_operating_mode(struct ar9170 *ar)
 		bssid = common->curbssid;
 
 		switch (vif->type) {
-		case NL80211_IFTYPE_MESH_POINT:
 		case NL80211_IFTYPE_ADHOC:
 			cam_mode |= AR9170_MAC_CAM_IBSS;
 			break;
+		case NL80211_IFTYPE_MESH_POINT:
 		case NL80211_IFTYPE_AP:
 			cam_mode |= AR9170_MAC_CAM_AP;
 
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index 858e58dfc4d..67997b39aba 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -616,10 +616,12 @@ static int carl9170_op_add_interface(struct ieee80211_hw *hw,
 
 			goto unlock;
 
+		case NL80211_IFTYPE_MESH_POINT:
 		case NL80211_IFTYPE_AP:
 			if ((vif->type == NL80211_IFTYPE_STATION) ||
 			    (vif->type == NL80211_IFTYPE_WDS) ||
-			    (vif->type == NL80211_IFTYPE_AP))
+			    (vif->type == NL80211_IFTYPE_AP) ||
+			    (vif->type == NL80211_IFTYPE_MESH_POINT))
 				break;
 
 			err = -EBUSY;
@@ -1147,6 +1149,7 @@ static int carl9170_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		ktype = AR9170_ENC_ALG_AESCCMP;
+		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -1778,6 +1781,7 @@ void *carl9170_alloc(size_t priv_size)
 	hw->wiphy->interface_modes = 0;
 
 	hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS |
+		     IEEE80211_HW_MFP_CAPABLE |
 		     IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 		     IEEE80211_HW_SUPPORTS_PS |
 		     IEEE80211_HW_PS_NULLFUNC_STACK |
diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c
index 6f6a3415566..a0b72307854 100644
--- a/drivers/net/wireless/ath/carl9170/rx.c
+++ b/drivers/net/wireless/ath/carl9170/rx.c
@@ -206,6 +206,7 @@ void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
 
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_ADHOC:
+		case NL80211_IFTYPE_MESH_POINT:
 			carl9170_update_beacon(ar, true);
 			break;
 
@@ -623,7 +624,8 @@ static void carl9170_ba_check(struct ar9170 *ar, void *data, unsigned int len)
 #undef TID_CHECK
 }
 
-static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms)
+static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms,
+				 struct ieee80211_rx_status *rx_status)
 {
 	__le16 fc;
 
@@ -636,6 +638,9 @@ static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms)
 		return true;
 	}
 
+	rx_status->flag |= RX_FLAG_AMPDU_DETAILS | RX_FLAG_AMPDU_LAST_KNOWN;
+	rx_status->ampdu_reference = ar->ampdu_ref;
+
 	/*
 	 * "802.11n - 7.4a.3 A-MPDU contents" describes in which contexts
 	 * certain frame types can be part of an aMPDU.
@@ -684,12 +689,15 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
 	if (unlikely(len < sizeof(*mac)))
 		goto drop;
 
+	memset(&status, 0, sizeof(status));
+
 	mpdu_len = len - sizeof(*mac);
 
 	mac = (void *)(buf + mpdu_len);
 	mac_status = mac->status;
 	switch (mac_status & AR9170_RX_STATUS_MPDU) {
 	case AR9170_RX_STATUS_MPDU_FIRST:
+		ar->ampdu_ref++;
 		/* Aggregated MPDUs start with an PLCP header */
 		if (likely(mpdu_len >= sizeof(struct ar9170_rx_head))) {
 			head = (void *) buf;
@@ -720,12 +728,13 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
 		break;
 
 	case AR9170_RX_STATUS_MPDU_LAST:
+		status.flag |= RX_FLAG_AMPDU_IS_LAST;
+
 		/*
 		 * The last frame of an A-MPDU has an extra tail
 		 * which does contain the phy status of the whole
 		 * aggregate.
 		 */
-
 		if (likely(mpdu_len >= sizeof(struct ar9170_rx_phystatus))) {
 			mpdu_len -= sizeof(struct ar9170_rx_phystatus);
 			phy = (void *)(buf + mpdu_len);
@@ -773,11 +782,10 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
 	if (unlikely(mpdu_len < (2 + 2 + ETH_ALEN + FCS_LEN)))
 		goto drop;
 
-	memset(&status, 0, sizeof(status));
 	if (unlikely(carl9170_rx_mac_status(ar, head, mac, &status)))
 		goto drop;
 
-	if (!carl9170_ampdu_check(ar, buf, mac_status))
+	if (!carl9170_ampdu_check(ar, buf, mac_status, &status))
 		goto drop;
 
 	if (phy)
diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index 6a8681407a1..84377cf580e 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -867,14 +867,15 @@ static bool carl9170_tx_cts_check(struct ar9170 *ar,
 	return false;
 }
 
-static int carl9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
+static int carl9170_tx_prepare(struct ar9170 *ar,
+			       struct ieee80211_sta *sta,
+			       struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr;
 	struct _carl9170_tx_superframe *txc;
 	struct carl9170_vif_info *cvif;
 	struct ieee80211_tx_info *info;
 	struct ieee80211_tx_rate *txrate;
-	struct ieee80211_sta *sta;
 	struct carl9170_tx_info *arinfo;
 	unsigned int hw_queue;
 	int i;
@@ -910,8 +911,6 @@ static int carl9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
 	else
 		cvif = NULL;
 
-	sta = info->control.sta;
-
 	txc = (void *)skb_push(skb, sizeof(*txc));
 	memset(txc, 0, sizeof(*txc));
 
@@ -1457,20 +1456,21 @@ err_unlock_rcu:
 	return false;
 }
 
-void carl9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+void carl9170_op_tx(struct ieee80211_hw *hw,
+		    struct ieee80211_tx_control *control,
+		    struct sk_buff *skb)
 {
 	struct ar9170 *ar = hw->priv;
 	struct ieee80211_tx_info *info;
-	struct ieee80211_sta *sta;
+	struct ieee80211_sta *sta = control->sta;
 	bool run;
 
 	if (unlikely(!IS_STARTED(ar)))
 		goto err_free;
 
 	info = IEEE80211_SKB_CB(skb);
-	sta = info->control.sta;
 
-	if (unlikely(carl9170_tx_prepare(ar, skb)))
+	if (unlikely(carl9170_tx_prepare(ar, sta, skb)))
 		goto err_free;
 
 	carl9170_tx_accounting(ar, skb);
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 3876c7ea54f..7a28d21ac38 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -34,8 +34,8 @@ config B43_BCMA
 config B43_BCMA_EXTRA
 	bool "Hardware support that overlaps with the brcmsmac driver"
 	depends on B43_BCMA
-	default n if BRCMSMAC || BRCMSMAC_MODULE
-	default	y
+	default n if BRCMSMAC
+	default y
 
 config B43_SSB
 	bool
diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile
index 4648bbf76ab..098fe9ee709 100644
--- a/drivers/net/wireless/b43/Makefile
+++ b/drivers/net/wireless/b43/Makefile
@@ -4,6 +4,7 @@ b43-y				+= tables.o
 b43-$(CONFIG_B43_PHY_N)		+= tables_nphy.o
 b43-$(CONFIG_B43_PHY_N)		+= radio_2055.o
 b43-$(CONFIG_B43_PHY_N)		+= radio_2056.o
+b43-$(CONFIG_B43_PHY_N)		+= radio_2057.o
 b43-y				+= phy_common.o
 b43-y				+= phy_g.o
 b43-y				+= phy_a.o
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 7c899fc7ddd..b298e5d68be 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -241,16 +241,18 @@ enum {
 #define B43_SHM_SH_PHYVER		0x0050	/* PHY version */
 #define B43_SHM_SH_PHYTYPE		0x0052	/* PHY type */
 #define B43_SHM_SH_ANTSWAP		0x005C	/* Antenna swap threshold */
-#define B43_SHM_SH_HOSTFLO		0x005E	/* Hostflags for ucode options (low) */
-#define B43_SHM_SH_HOSTFMI		0x0060	/* Hostflags for ucode options (middle) */
-#define B43_SHM_SH_HOSTFHI		0x0062	/* Hostflags for ucode options (high) */
+#define B43_SHM_SH_HOSTF1		0x005E	/* Hostflags 1 for ucode options */
+#define B43_SHM_SH_HOSTF2		0x0060	/* Hostflags 2 for ucode options */
+#define B43_SHM_SH_HOSTF3		0x0062	/* Hostflags 3 for ucode options */
 #define B43_SHM_SH_RFATT		0x0064	/* Current radio attenuation value */
 #define B43_SHM_SH_RADAR		0x0066	/* Radar register */
 #define B43_SHM_SH_PHYTXNOI		0x006E	/* PHY noise directly after TX (lower 8bit only) */
 #define B43_SHM_SH_RFRXSP1		0x0072	/* RF RX SP Register 1 */
+#define B43_SHM_SH_HOSTF4		0x0078	/* Hostflags 4 for ucode options */
 #define B43_SHM_SH_CHAN			0x00A0	/* Current channel (low 8bit only) */
 #define  B43_SHM_SH_CHAN_5GHZ		0x0100	/* Bit set, if 5 Ghz channel */
 #define  B43_SHM_SH_CHAN_40MHZ		0x0200	/* Bit set, if 40 Mhz channel width */
+#define B43_SHM_SH_HOSTF5		0x00D4	/* Hostflags 5 for ucode options */
 #define B43_SHM_SH_BCMCFIFOID		0x0108	/* Last posted cookie to the bcast/mcast FIFO */
 /* TSSI information */
 #define B43_SHM_SH_TSSI_CCK		0x0058	/* TSSI for last 4 CCK frames (32bit) */
@@ -415,6 +417,8 @@ enum {
 #define B43_PHYTYPE_HT			0x07
 #define B43_PHYTYPE_LCN			0x08
 #define B43_PHYTYPE_LCNXN		0x09
+#define B43_PHYTYPE_LCN40		0x0a
+#define B43_PHYTYPE_AC			0x0b
 
 /* PHYRegisters */
 #define B43_PHY_ILT_A_CTRL		0x0072
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index b80352b308d..73730e94e0a 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -533,11 +533,11 @@ u64 b43_hf_read(struct b43_wldev *dev)
 {
 	u64 ret;
 
-	ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
+	ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF3);
 	ret <<= 16;
-	ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
+	ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF2);
 	ret <<= 16;
-	ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
+	ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1);
 
 	return ret;
 }
@@ -550,9 +550,9 @@ void b43_hf_write(struct b43_wldev *dev, u64 value)
 	lo = (value & 0x00000000FFFFULL);
 	mi = (value & 0x0000FFFF0000ULL) >> 16;
 	hi = (value & 0xFFFF00000000ULL) >> 32;
-	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
-	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
-	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
+	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1, lo);
+	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF2, mi);
+	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF3, hi);
 }
 
 /* Read the firmware capabilities bitmask (Opensource firmware only) */
@@ -2719,32 +2719,37 @@ static int b43_gpio_init(struct b43_wldev *dev)
 	if (dev->dev->chip_id == 0x4301) {
 		mask |= 0x0060;
 		set |= 0x0060;
+	} else if (dev->dev->chip_id == 0x5354) {
+		/* Don't allow overtaking buttons GPIOs */
+		set &= 0x2; /* 0x2 is LED GPIO on BCM5354 */
 	}
-	if (dev->dev->chip_id == 0x5354)
-		set &= 0xff02;
+
 	if (0 /* FIXME: conditional unknown */ ) {
 		b43_write16(dev, B43_MMIO_GPIO_MASK,
 			    b43_read16(dev, B43_MMIO_GPIO_MASK)
 			    | 0x0100);
-		mask |= 0x0180;
-		set |= 0x0180;
+		/* BT Coexistance Input */
+		mask |= 0x0080;
+		set |= 0x0080;
+		/* BT Coexistance Out */
+		mask |= 0x0100;
+		set |= 0x0100;
 	}
 	if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) {
+		/* PA is controlled by gpio 9, let ucode handle it */
 		b43_write16(dev, B43_MMIO_GPIO_MASK,
 			    b43_read16(dev, B43_MMIO_GPIO_MASK)
 			    | 0x0200);
 		mask |= 0x0200;
 		set |= 0x0200;
 	}
-	if (dev->dev->core_rev >= 2)
-		mask |= 0x0010;	/* FIXME: This is redundant. */
 
 	switch (dev->dev->bus_type) {
 #ifdef CONFIG_B43_BCMA
 	case B43_BUS_BCMA:
 		bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
 				(bcma_cc_read32(&dev->dev->bdev->bus->drv_cc,
-					BCMA_CC_GPIOCTL) & mask) | set);
+					BCMA_CC_GPIOCTL) & ~mask) | set);
 		break;
 #endif
 #ifdef CONFIG_B43_SSB
@@ -2753,7 +2758,7 @@ static int b43_gpio_init(struct b43_wldev *dev)
 		if (gpiodev)
 			ssb_write32(gpiodev, B43_GPIO_CONTROL,
 				    (ssb_read32(gpiodev, B43_GPIO_CONTROL)
-				    & mask) | set);
+				    & ~mask) | set);
 		break;
 #endif
 	}
@@ -3407,7 +3412,8 @@ static void b43_tx_work(struct work_struct *work)
 }
 
 static void b43_op_tx(struct ieee80211_hw *hw,
-		     struct sk_buff *skb)
+		      struct ieee80211_tx_control *control,
+		      struct sk_buff *skb)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
 
@@ -4277,6 +4283,35 @@ out:
 	return err;
 }
 
+static char *b43_phy_name(struct b43_wldev *dev, u8 phy_type)
+{
+	switch (phy_type) {
+	case B43_PHYTYPE_A:
+		return "A";
+	case B43_PHYTYPE_B:
+		return "B";
+	case B43_PHYTYPE_G:
+		return "G";
+	case B43_PHYTYPE_N:
+		return "N";
+	case B43_PHYTYPE_LP:
+		return "LP";
+	case B43_PHYTYPE_SSLPN:
+		return "SSLPN";
+	case B43_PHYTYPE_HT:
+		return "HT";
+	case B43_PHYTYPE_LCN:
+		return "LCN";
+	case B43_PHYTYPE_LCNXN:
+		return "LCNXN";
+	case B43_PHYTYPE_LCN40:
+		return "LCN40";
+	case B43_PHYTYPE_AC:
+		return "AC";
+	}
+	return "UNKNOWN";
+}
+
 /* Get PHY and RADIO versioning numbers */
 static int b43_phy_versioning(struct b43_wldev *dev)
 {
@@ -4337,13 +4372,13 @@ static int b43_phy_versioning(struct b43_wldev *dev)
 		unsupported = 1;
 	}
 	if (unsupported) {
-		b43err(dev->wl, "FOUND UNSUPPORTED PHY "
-		       "(Analog %u, Type %u, Revision %u)\n",
-		       analog_type, phy_type, phy_rev);
+		b43err(dev->wl, "FOUND UNSUPPORTED PHY (Analog %u, Type %d (%s), Revision %u)\n",
+		       analog_type, phy_type, b43_phy_name(dev, phy_type),
+		       phy_rev);
 		return -EOPNOTSUPP;
 	}
-	b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
-	       analog_type, phy_type, phy_rev);
+	b43info(dev->wl, "Found PHY: Analog %u, Type %d (%s), Revision %u\n",
+		analog_type, phy_type, b43_phy_name(dev, phy_type), phy_rev);
 
 	/* Get RADIO versioning */
 	if (dev->dev->core_rev >= 24) {
diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c
index 3f8883b14d9..f01676ac481 100644
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -240,6 +240,21 @@ void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set)
 			  (b43_radio_read16(dev, offset) & mask) | set);
 }
 
+bool b43_radio_wait_value(struct b43_wldev *dev, u16 offset, u16 mask,
+			  u16 value, int delay, int timeout)
+{
+	u16 val;
+	int i;
+
+	for (i = 0; i < timeout; i += delay) {
+		val = b43_radio_read(dev, offset);
+		if ((val & mask) == value)
+			return true;
+		udelay(delay);
+	}
+	return false;
+}
+
 u16 b43_phy_read(struct b43_wldev *dev, u16 reg)
 {
 	assert_mac_suspended(dev);
@@ -428,7 +443,7 @@ int b43_phy_shm_tssi_read(struct b43_wldev *dev, u16 shm_offset)
 	average = (a + b + c + d + 2) / 4;
 	if (is_ofdm) {
 		/* Adjust for CCK-boost */
-		if (b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO)
+		if (b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1)
 		    & B43_HF_CCKBOOST)
 			average = (average >= 13) ? (average - 13) : 0;
 	}
diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h
index 9233b13fc16..f1b99934987 100644
--- a/drivers/net/wireless/b43/phy_common.h
+++ b/drivers/net/wireless/b43/phy_common.h
@@ -365,6 +365,12 @@ void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set);
 void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set);
 
 /**
+ * b43_radio_wait_value - Waits for a given value in masked register read
+ */
+bool b43_radio_wait_value(struct b43_wldev *dev, u16 offset, u16 mask,
+			  u16 value, int delay, int timeout);
+
+/**
  * b43_radio_lock - Lock firmware radio register access
  */
 void b43_radio_lock(struct b43_wldev *dev);
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index b92bb9c92ad..3c35382ee6c 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -32,6 +32,7 @@
 #include "tables_nphy.h"
 #include "radio_2055.h"
 #include "radio_2056.h"
+#include "radio_2057.h"
 #include "main.h"
 
 struct nphy_txgains {
@@ -126,6 +127,46 @@ ok:
 	b43_phy_write(dev, B43_NPHY_RFSEQMODE, seq_mode);
 }
 
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RFCtrlOverrideRev7 */
+static void b43_nphy_rf_control_override_rev7(struct b43_wldev *dev, u16 field,
+					      u16 value, u8 core, bool off,
+					      u8 override)
+{
+	const struct nphy_rf_control_override_rev7 *e;
+	u16 en_addrs[3][2] = {
+		{ 0x0E7, 0x0EC }, { 0x342, 0x343 }, { 0x346, 0x347 }
+	};
+	u16 en_addr;
+	u16 en_mask = field;
+	u16 val_addr;
+	u8 i;
+
+	/* Remember: we can get NULL! */
+	e = b43_nphy_get_rf_ctl_over_rev7(dev, field, override);
+
+	for (i = 0; i < 2; i++) {
+		if (override >= ARRAY_SIZE(en_addrs)) {
+			b43err(dev->wl, "Invalid override value %d\n", override);
+			return;
+		}
+		en_addr = en_addrs[override][i];
+
+		val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1;
+
+		if (off) {
+			b43_phy_mask(dev, en_addr, ~en_mask);
+			if (e) /* Do it safer, better than wl */
+				b43_phy_mask(dev, val_addr, ~e->val_mask);
+		} else {
+			if (!core || (core & (1 << i))) {
+				b43_phy_set(dev, en_addr, en_mask);
+				if (e)
+					b43_phy_maskset(dev, val_addr, ~e->val_mask, (value << e->val_shift));
+			}
+		}
+	}
+}
+
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RFCtrlOverride */
 static void b43_nphy_rf_control_override(struct b43_wldev *dev, u16 field,
 						u16 value, u8 core, bool off)
@@ -459,6 +500,137 @@ static void b43_nphy_set_rf_sequence(struct b43_wldev *dev, u8 cmd,
 }
 
 /**************************************************
+ * Radio 0x2057
+ **************************************************/
+
+/* http://bcm-v4.sipsolutions.net/PHY/radio2057_rcal */
+static u8 b43_radio_2057_rcal(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	u16 tmp;
+
+	if (phy->radio_rev == 5) {
+		b43_phy_mask(dev, 0x342, ~0x2);
+		udelay(10);
+		b43_radio_set(dev, R2057_IQTEST_SEL_PU, 0x1);
+		b43_radio_maskset(dev, 0x1ca, ~0x2, 0x1);
+	}
+
+	b43_radio_set(dev, R2057_RCAL_CONFIG, 0x1);
+	udelay(10);
+	b43_radio_set(dev, R2057_RCAL_CONFIG, 0x3);
+	if (!b43_radio_wait_value(dev, R2057_RCCAL_N1_1, 1, 1, 100, 1000000)) {
+		b43err(dev->wl, "Radio 0x2057 rcal timeout\n");
+		return 0;
+	}
+	b43_radio_mask(dev, R2057_RCAL_CONFIG, ~0x2);
+	tmp = b43_radio_read(dev, R2057_RCAL_STATUS) & 0x3E;
+	b43_radio_mask(dev, R2057_RCAL_CONFIG, ~0x1);
+
+	if (phy->radio_rev == 5) {
+		b43_radio_mask(dev, R2057_IPA2G_CASCONV_CORE0, ~0x1);
+		b43_radio_mask(dev, 0x1ca, ~0x2);
+	}
+	if (phy->radio_rev <= 4 || phy->radio_rev == 6) {
+		b43_radio_maskset(dev, R2057_TEMPSENSE_CONFIG, ~0x3C, tmp);
+		b43_radio_maskset(dev, R2057_BANDGAP_RCAL_TRIM, ~0xF0,
+				  tmp << 2);
+	}
+
+	return tmp & 0x3e;
+}
+
+/* http://bcm-v4.sipsolutions.net/PHY/radio2057_rccal */
+static u16 b43_radio_2057_rccal(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	bool special = (phy->radio_rev == 3 || phy->radio_rev == 4 ||
+			phy->radio_rev == 6);
+	u16 tmp;
+
+	if (special) {
+		b43_radio_write(dev, R2057_RCCAL_MASTER, 0x61);
+		b43_radio_write(dev, R2057_RCCAL_TRC0, 0xC0);
+	} else {
+		b43_radio_write(dev, 0x1AE, 0x61);
+		b43_radio_write(dev, R2057_RCCAL_TRC0, 0xE1);
+	}
+	b43_radio_write(dev, R2057_RCCAL_X1, 0x6E);
+	b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x55);
+	if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 1, 1, 500,
+				  5000000))
+		b43dbg(dev->wl, "Radio 0x2057 rccal timeout\n");
+	b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x15);
+	if (special) {
+		b43_radio_write(dev, R2057_RCCAL_MASTER, 0x69);
+		b43_radio_write(dev, R2057_RCCAL_TRC0, 0xB0);
+	} else {
+		b43_radio_write(dev, 0x1AE, 0x69);
+		b43_radio_write(dev, R2057_RCCAL_TRC0, 0xD5);
+	}
+	b43_radio_write(dev, R2057_RCCAL_X1, 0x6E);
+	b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x55);
+	if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 1, 1, 500,
+				  5000000))
+		b43dbg(dev->wl, "Radio 0x2057 rccal timeout\n");
+	b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x15);
+	if (special) {
+		b43_radio_write(dev, R2057_RCCAL_MASTER, 0x73);
+		b43_radio_write(dev, R2057_RCCAL_X1, 0x28);
+		b43_radio_write(dev, R2057_RCCAL_TRC0, 0xB0);
+	} else {
+		b43_radio_write(dev, 0x1AE, 0x73);
+		b43_radio_write(dev, R2057_RCCAL_X1, 0x6E);
+		b43_radio_write(dev, R2057_RCCAL_TRC0, 0x99);
+	}
+	b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x55);
+	if (!b43_radio_wait_value(dev, R2057_RCCAL_DONE_OSCCAP, 1, 1, 500,
+				  5000000)) {
+		b43err(dev->wl, "Radio 0x2057 rcal timeout\n");
+		return 0;
+	}
+	tmp = b43_radio_read(dev, R2057_RCCAL_DONE_OSCCAP);
+	b43_radio_write(dev, R2057_RCCAL_START_R1_Q1_P1, 0x15);
+	return tmp;
+}
+
+static void b43_radio_2057_init_pre(struct b43_wldev *dev)
+{
+	b43_phy_mask(dev, B43_NPHY_RFCTL_CMD, ~B43_NPHY_RFCTL_CMD_CHIP0PU);
+	/* Maybe wl meant to reset and set (order?) RFCTL_CMD_OEPORFORCE? */
+	b43_phy_mask(dev, B43_NPHY_RFCTL_CMD, B43_NPHY_RFCTL_CMD_OEPORFORCE);
+	b43_phy_set(dev, B43_NPHY_RFCTL_CMD, ~B43_NPHY_RFCTL_CMD_OEPORFORCE);
+	b43_phy_set(dev, B43_NPHY_RFCTL_CMD, B43_NPHY_RFCTL_CMD_CHIP0PU);
+}
+
+static void b43_radio_2057_init_post(struct b43_wldev *dev)
+{
+	b43_radio_set(dev, R2057_XTALPUOVR_PINCTRL, 0x1);
+
+	b43_radio_set(dev, R2057_RFPLL_MISC_CAL_RESETN, 0x78);
+	b43_radio_set(dev, R2057_XTAL_CONFIG2, 0x80);
+	mdelay(2);
+	b43_radio_mask(dev, R2057_RFPLL_MISC_CAL_RESETN, ~0x78);
+	b43_radio_mask(dev, R2057_XTAL_CONFIG2, ~0x80);
+
+	if (dev->phy.n->init_por) {
+		b43_radio_2057_rcal(dev);
+		b43_radio_2057_rccal(dev);
+	}
+	b43_radio_mask(dev, R2057_RFPLL_MASTER, ~0x8);
+
+	dev->phy.n->init_por = false;
+}
+
+/* http://bcm-v4.sipsolutions.net/802.11/Radio/2057/Init */
+static void b43_radio_2057_init(struct b43_wldev *dev)
+{
+	b43_radio_2057_init_pre(dev);
+	r2057_upload_inittabs(dev);
+	b43_radio_2057_init_post(dev);
+}
+
+/**************************************************
  * Radio 0x2056
  **************************************************/
 
@@ -545,7 +717,9 @@ static void b43_radio_2056_setup(struct b43_wldev *dev,
 	enum ieee80211_band band = b43_current_band(dev->wl);
 	u16 offset;
 	u8 i;
-	u16 bias, cbias, pag_boost, pgag_boost, mixg_boost, padg_boost;
+	u16 bias, cbias;
+	u16 pag_boost, padg_boost, pgag_boost, mixg_boost;
+	u16 paa_boost, pada_boost, pgaa_boost, mixa_boost;
 
 	B43_WARN_ON(dev->phy.rev < 3);
 
@@ -630,7 +804,56 @@ static void b43_radio_2056_setup(struct b43_wldev *dev,
 			b43_radio_write(dev, offset | B2056_TX_PA_SPARE1, 0xee);
 		}
 	} else if (dev->phy.n->ipa5g_on && band == IEEE80211_BAND_5GHZ) {
-		/* TODO */
+		u16 freq = dev->phy.channel_freq;
+		if (freq < 5100) {
+			paa_boost = 0xA;
+			pada_boost = 0x77;
+			pgaa_boost = 0xF;
+			mixa_boost = 0xF;
+		} else if (freq < 5340) {
+			paa_boost = 0x8;
+			pada_boost = 0x77;
+			pgaa_boost = 0xFB;
+			mixa_boost = 0xF;
+		} else if (freq < 5650) {
+			paa_boost = 0x0;
+			pada_boost = 0x77;
+			pgaa_boost = 0xB;
+			mixa_boost = 0xF;
+		} else {
+			paa_boost = 0x0;
+			pada_boost = 0x77;
+			if (freq != 5825)
+				pgaa_boost = -(freq - 18) / 36 + 168;
+			else
+				pgaa_boost = 6;
+			mixa_boost = 0xF;
+		}
+
+		for (i = 0; i < 2; i++) {
+			offset = i ? B2056_TX1 : B2056_TX0;
+
+			b43_radio_write(dev,
+				offset | B2056_TX_INTPAA_BOOST_TUNE, paa_boost);
+			b43_radio_write(dev,
+				offset | B2056_TX_PADA_BOOST_TUNE, pada_boost);
+			b43_radio_write(dev,
+				offset | B2056_TX_PGAA_BOOST_TUNE, pgaa_boost);
+			b43_radio_write(dev,
+				offset | B2056_TX_MIXA_BOOST_TUNE, mixa_boost);
+			b43_radio_write(dev,
+				offset | B2056_TX_TXSPARE1, 0x30);
+			b43_radio_write(dev,
+				offset | B2056_TX_PA_SPARE2, 0xee);
+			b43_radio_write(dev,
+				offset | B2056_TX_PADA_CASCBIAS, 0x03);
+			b43_radio_write(dev,
+				offset | B2056_TX_INTPAA_IAUX_STAT, 0x50);
+			b43_radio_write(dev,
+				offset | B2056_TX_INTPAA_IMAIN_STAT, 0x50);
+			b43_radio_write(dev,
+				offset | B2056_TX_INTPAA_CASCBIAS, 0x30);
+		}
 	}
 
 	udelay(50);
@@ -643,6 +866,37 @@ static void b43_radio_2056_setup(struct b43_wldev *dev,
 	udelay(300);
 }
 
+static u8 b43_radio_2056_rcal(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	u16 mast2, tmp;
+
+	if (phy->rev != 3)
+		return 0;
+
+	mast2 = b43_radio_read(dev, B2056_SYN_PLL_MAST2);
+	b43_radio_write(dev, B2056_SYN_PLL_MAST2, mast2 | 0x7);
+
+	udelay(10);
+	b43_radio_write(dev, B2056_SYN_RCAL_MASTER, 0x01);
+	udelay(10);
+	b43_radio_write(dev, B2056_SYN_RCAL_MASTER, 0x09);
+
+	if (!b43_radio_wait_value(dev, B2056_SYN_RCAL_CODE_OUT, 0x80, 0x80, 100,
+				  1000000)) {
+		b43err(dev->wl, "Radio recalibration timeout\n");
+		return 0;
+	}
+
+	b43_radio_write(dev, B2056_SYN_RCAL_MASTER, 0x01);
+	tmp = b43_radio_read(dev, B2056_SYN_RCAL_CODE_OUT);
+	b43_radio_write(dev, B2056_SYN_RCAL_MASTER, 0x00);
+
+	b43_radio_write(dev, B2056_SYN_PLL_MAST2, mast2);
+
+	return tmp & 0x1f;
+}
+
 static void b43_radio_init2056_pre(struct b43_wldev *dev)
 {
 	b43_phy_mask(dev, B43_NPHY_RFCTL_CMD,
@@ -665,10 +919,8 @@ static void b43_radio_init2056_post(struct b43_wldev *dev)
 	b43_radio_mask(dev, B2056_SYN_COM_RESET, ~0x2);
 	b43_radio_mask(dev, B2056_SYN_PLL_MAST2, ~0xFC);
 	b43_radio_mask(dev, B2056_SYN_RCCAL_CTRL0, ~0x1);
-	/*
-	if (nphy->init_por)
-		Call Radio 2056 Recalibrate
-	*/
+	if (dev->phy.n->init_por)
+		b43_radio_2056_rcal(dev);
 }
 
 /*
@@ -680,6 +932,8 @@ static void b43_radio_init2056(struct b43_wldev *dev)
 	b43_radio_init2056_pre(dev);
 	b2056_upload_inittabs(dev, 0, 0);
 	b43_radio_init2056_post(dev);
+
+	dev->phy.n->init_por = false;
 }
 
 /**************************************************
@@ -753,8 +1007,6 @@ static void b43_radio_init2055_post(struct b43_wldev *dev)
 {
 	struct b43_phy_n *nphy = dev->phy.n;
 	struct ssb_sprom *sprom = dev->dev->bus_sprom;
-	int i;
-	u16 val;
 	bool workaround = false;
 
 	if (sprom->revision < 4)
@@ -777,15 +1029,7 @@ static void b43_radio_init2055_post(struct b43_wldev *dev)
 	b43_radio_set(dev, B2055_CAL_MISC, 0x1);
 	msleep(1);
 	b43_radio_set(dev, B2055_CAL_MISC, 0x40);
-	for (i = 0; i < 200; i++) {
-		val = b43_radio_read(dev, B2055_CAL_COUT2);
-		if (val & 0x80) {
-			i = 0;
-			break;
-		}
-		udelay(10);
-	}
-	if (i)
+	if (!b43_radio_wait_value(dev, B2055_CAL_COUT2, 0x80, 0x80, 10, 2000))
 		b43err(dev->wl, "radio post init timeout\n");
 	b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F);
 	b43_switch_channel(dev, dev->phy.channel);
@@ -1860,12 +2104,334 @@ static void b43_nphy_gain_ctl_workarounds_rev1_2(struct b43_wldev *dev)
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/WorkaroundsGainCtrl */
 static void b43_nphy_gain_ctl_workarounds(struct b43_wldev *dev)
 {
-	if (dev->phy.rev >= 3)
+	if (dev->phy.rev >= 7)
+		; /* TODO */
+	else if (dev->phy.rev >= 3)
 		b43_nphy_gain_ctl_workarounds_rev3plus(dev);
 	else
 		b43_nphy_gain_ctl_workarounds_rev1_2(dev);
 }
 
+/* http://bcm-v4.sipsolutions.net/PHY/N/Read_Lpf_Bw_Ctl */
+static u16 b43_nphy_read_lpf_ctl(struct b43_wldev *dev, u16 offset)
+{
+	if (!offset)
+		offset = (dev->phy.is_40mhz) ? 0x159 : 0x154;
+	return b43_ntab_read(dev, B43_NTAB16(7, offset)) & 0x7;
+}
+
+static void b43_nphy_workarounds_rev7plus(struct b43_wldev *dev)
+{
+	struct ssb_sprom *sprom = dev->dev->bus_sprom;
+	struct b43_phy *phy = &dev->phy;
+
+	u8 rx2tx_events_ipa[9] = { 0x0, 0x1, 0x2, 0x8, 0x5, 0x6, 0xF, 0x3,
+					0x1F };
+	u8 rx2tx_delays_ipa[9] = { 8, 6, 6, 4, 4, 16, 43, 1, 1 };
+
+	u16 ntab7_15e_16e[] = { 0x10f, 0x10f };
+	u8 ntab7_138_146[] = { 0x11, 0x11 };
+	u8 ntab7_133[] = { 0x77, 0x11, 0x11 };
+
+	u16 lpf_20, lpf_40, lpf_11b;
+	u16 bcap_val, bcap_val_11b, bcap_val_11n_20, bcap_val_11n_40;
+	u16 scap_val, scap_val_11b, scap_val_11n_20, scap_val_11n_40;
+	bool rccal_ovrd = false;
+
+	u16 rx2tx_lut_20_11b, rx2tx_lut_20_11n, rx2tx_lut_40_11n;
+	u16 bias, conv, filt;
+
+	u32 tmp32;
+	u8 core;
+
+	if (phy->rev == 7) {
+		b43_phy_set(dev, B43_NPHY_FINERX2_CGC, 0x10);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN0, 0xFF80, 0x0020);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN0, 0x80FF, 0x2700);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN1, 0xFF80, 0x002E);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN1, 0x80FF, 0x3300);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN2, 0xFF80, 0x0037);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN2, 0x80FF, 0x3A00);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN3, 0xFF80, 0x003C);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN3, 0x80FF, 0x3E00);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN4, 0xFF80, 0x003E);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN4, 0x80FF, 0x3F00);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN5, 0xFF80, 0x0040);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN5, 0x80FF, 0x4000);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN6, 0xFF80, 0x0040);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN6, 0x80FF, 0x4000);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN7, 0xFF80, 0x0040);
+		b43_phy_maskset(dev, B43_NPHY_FREQGAIN7, 0x80FF, 0x4000);
+	}
+	if (phy->rev <= 8) {
+		b43_phy_write(dev, 0x23F, 0x1B0);
+		b43_phy_write(dev, 0x240, 0x1B0);
+	}
+	if (phy->rev >= 8)
+		b43_phy_maskset(dev, B43_NPHY_TXTAILCNT, ~0xFF, 0x72);
+
+	b43_ntab_write(dev, B43_NTAB16(8, 0x00), 2);
+	b43_ntab_write(dev, B43_NTAB16(8, 0x10), 2);
+	tmp32 = b43_ntab_read(dev, B43_NTAB32(30, 0));
+	tmp32 &= 0xffffff;
+	b43_ntab_write(dev, B43_NTAB32(30, 0), tmp32);
+	b43_ntab_write_bulk(dev, B43_NTAB16(7, 0x15e), 2, ntab7_15e_16e);
+	b43_ntab_write_bulk(dev, B43_NTAB16(7, 0x16e), 2, ntab7_15e_16e);
+
+	if (b43_nphy_ipa(dev))
+		b43_nphy_set_rf_sequence(dev, 0, rx2tx_events_ipa,
+				rx2tx_delays_ipa, ARRAY_SIZE(rx2tx_events_ipa));
+
+	b43_phy_maskset(dev, 0x299, 0x3FFF, 0x4000);
+	b43_phy_maskset(dev, 0x29D, 0x3FFF, 0x4000);
+
+	lpf_20 = b43_nphy_read_lpf_ctl(dev, 0x154);
+	lpf_40 = b43_nphy_read_lpf_ctl(dev, 0x159);
+	lpf_11b = b43_nphy_read_lpf_ctl(dev, 0x152);
+	if (b43_nphy_ipa(dev)) {
+		if ((phy->radio_rev == 5 && phy->is_40mhz) ||
+		    phy->radio_rev == 7 || phy->radio_rev == 8) {
+			bcap_val = b43_radio_read(dev, 0x16b);
+			scap_val = b43_radio_read(dev, 0x16a);
+			scap_val_11b = scap_val;
+			bcap_val_11b = bcap_val;
+			if (phy->radio_rev == 5 && phy->is_40mhz) {
+				scap_val_11n_20 = scap_val;
+				bcap_val_11n_20 = bcap_val;
+				scap_val_11n_40 = bcap_val_11n_40 = 0xc;
+				rccal_ovrd = true;
+			} else { /* Rev 7/8 */
+				lpf_20 = 4;
+				lpf_11b = 1;
+				if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+					scap_val_11n_20 = 0xc;
+					bcap_val_11n_20 = 0xc;
+					scap_val_11n_40 = 0xa;
+					bcap_val_11n_40 = 0xa;
+				} else {
+					scap_val_11n_20 = 0x14;
+					bcap_val_11n_20 = 0x14;
+					scap_val_11n_40 = 0xf;
+					bcap_val_11n_40 = 0xf;
+				}
+				rccal_ovrd = true;
+			}
+		}
+	} else {
+		if (phy->radio_rev == 5) {
+			lpf_20 = 1;
+			lpf_40 = 3;
+			bcap_val = b43_radio_read(dev, 0x16b);
+			scap_val = b43_radio_read(dev, 0x16a);
+			scap_val_11b = scap_val;
+			bcap_val_11b = bcap_val;
+			scap_val_11n_20 = 0x11;
+			scap_val_11n_40 = 0x11;
+			bcap_val_11n_20 = 0x13;
+			bcap_val_11n_40 = 0x13;
+			rccal_ovrd = true;
+		}
+	}
+	if (rccal_ovrd) {
+		rx2tx_lut_20_11b = (bcap_val_11b << 8) |
+				   (scap_val_11b << 3) |
+				   lpf_11b;
+		rx2tx_lut_20_11n = (bcap_val_11n_20 << 8) |
+				   (scap_val_11n_20 << 3) |
+				   lpf_20;
+		rx2tx_lut_40_11n = (bcap_val_11n_40 << 8) |
+				   (scap_val_11n_40 << 3) |
+				   lpf_40;
+		for (core = 0; core < 2; core++) {
+			b43_ntab_write(dev, B43_NTAB16(7, 0x152 + core * 16),
+				       rx2tx_lut_20_11b);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x153 + core * 16),
+				       rx2tx_lut_20_11n);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x154 + core * 16),
+				       rx2tx_lut_20_11n);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x155 + core * 16),
+				       rx2tx_lut_40_11n);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x156 + core * 16),
+				       rx2tx_lut_40_11n);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x157 + core * 16),
+				       rx2tx_lut_40_11n);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x158 + core * 16),
+				       rx2tx_lut_40_11n);
+			b43_ntab_write(dev, B43_NTAB16(7, 0x159 + core * 16),
+				       rx2tx_lut_40_11n);
+		}
+		b43_nphy_rf_control_override_rev7(dev, 16, 1, 3, false, 2);
+	}
+	b43_phy_write(dev, 0x32F, 0x3);
+	if (phy->radio_rev == 4 || phy->radio_rev == 6)
+		b43_nphy_rf_control_override_rev7(dev, 4, 1, 3, false, 0);
+
+	if (phy->radio_rev == 3 || phy->radio_rev == 4 || phy->radio_rev == 6) {
+		if (sprom->revision &&
+		    sprom->boardflags2_hi & B43_BFH2_IPALVLSHIFT_3P3) {
+			b43_radio_write(dev, 0x5, 0x05);
+			b43_radio_write(dev, 0x6, 0x30);
+			b43_radio_write(dev, 0x7, 0x00);
+			b43_radio_set(dev, 0x4f, 0x1);
+			b43_radio_set(dev, 0xd4, 0x1);
+			bias = 0x1f;
+			conv = 0x6f;
+			filt = 0xaa;
+		} else {
+			bias = 0x2b;
+			conv = 0x7f;
+			filt = 0xee;
+		}
+		if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+			for (core = 0; core < 2; core++) {
+				if (core == 0) {
+					b43_radio_write(dev, 0x5F, bias);
+					b43_radio_write(dev, 0x64, conv);
+					b43_radio_write(dev, 0x66, filt);
+				} else {
+					b43_radio_write(dev, 0xE8, bias);
+					b43_radio_write(dev, 0xE9, conv);
+					b43_radio_write(dev, 0xEB, filt);
+				}
+			}
+		}
+	}
+
+	if (b43_nphy_ipa(dev)) {
+		if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+			if (phy->radio_rev == 3 || phy->radio_rev == 4 ||
+			    phy->radio_rev == 6) {
+				for (core = 0; core < 2; core++) {
+					if (core == 0)
+						b43_radio_write(dev, 0x51,
+								0x7f);
+					else
+						b43_radio_write(dev, 0xd6,
+								0x7f);
+				}
+			}
+			if (phy->radio_rev == 3) {
+				for (core = 0; core < 2; core++) {
+					if (core == 0) {
+						b43_radio_write(dev, 0x64,
+								0x13);
+						b43_radio_write(dev, 0x5F,
+								0x1F);
+						b43_radio_write(dev, 0x66,
+								0xEE);
+						b43_radio_write(dev, 0x59,
+								0x8A);
+						b43_radio_write(dev, 0x80,
+								0x3E);
+					} else {
+						b43_radio_write(dev, 0x69,
+								0x13);
+						b43_radio_write(dev, 0xE8,
+								0x1F);
+						b43_radio_write(dev, 0xEB,
+								0xEE);
+						b43_radio_write(dev, 0xDE,
+								0x8A);
+						b43_radio_write(dev, 0x105,
+								0x3E);
+					}
+				}
+			} else if (phy->radio_rev == 7 || phy->radio_rev == 8) {
+				if (!phy->is_40mhz) {
+					b43_radio_write(dev, 0x5F, 0x14);
+					b43_radio_write(dev, 0xE8, 0x12);
+				} else {
+					b43_radio_write(dev, 0x5F, 0x16);
+					b43_radio_write(dev, 0xE8, 0x16);
+				}
+			}
+		} else {
+			u16 freq = phy->channel_freq;
+			if ((freq >= 5180 && freq <= 5230) ||
+			    (freq >= 5745 && freq <= 5805)) {
+				b43_radio_write(dev, 0x7D, 0xFF);
+				b43_radio_write(dev, 0xFE, 0xFF);
+			}
+		}
+	} else {
+		if (phy->radio_rev != 5) {
+			for (core = 0; core < 2; core++) {
+				if (core == 0) {
+					b43_radio_write(dev, 0x5c, 0x61);
+					b43_radio_write(dev, 0x51, 0x70);
+				} else {
+					b43_radio_write(dev, 0xe1, 0x61);
+					b43_radio_write(dev, 0xd6, 0x70);
+				}
+			}
+		}
+	}
+
+	if (phy->radio_rev == 4) {
+		b43_ntab_write(dev, B43_NTAB16(8, 0x05), 0x20);
+		b43_ntab_write(dev, B43_NTAB16(8, 0x15), 0x20);
+		for (core = 0; core < 2; core++) {
+			if (core == 0) {
+				b43_radio_write(dev, 0x1a1, 0x00);
+				b43_radio_write(dev, 0x1a2, 0x3f);
+				b43_radio_write(dev, 0x1a6, 0x3f);
+			} else {
+				b43_radio_write(dev, 0x1a7, 0x00);
+				b43_radio_write(dev, 0x1ab, 0x3f);
+				b43_radio_write(dev, 0x1ac, 0x3f);
+			}
+		}
+	} else {
+		b43_phy_set(dev, B43_NPHY_AFECTL_C1, 0x4);
+		b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x4);
+		b43_phy_set(dev, B43_NPHY_AFECTL_C2, 0x4);
+		b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x4);
+
+		b43_phy_mask(dev, B43_NPHY_AFECTL_C1, ~0x1);
+		b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x1);
+		b43_phy_mask(dev, B43_NPHY_AFECTL_C2, ~0x1);
+		b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x1);
+		b43_ntab_write(dev, B43_NTAB16(8, 0x05), 0x20);
+		b43_ntab_write(dev, B43_NTAB16(8, 0x15), 0x20);
+
+		b43_phy_mask(dev, B43_NPHY_AFECTL_C1, ~0x4);
+		b43_phy_mask(dev, B43_NPHY_AFECTL_OVER1, ~0x4);
+		b43_phy_mask(dev, B43_NPHY_AFECTL_C2, ~0x4);
+		b43_phy_mask(dev, B43_NPHY_AFECTL_OVER, ~0x4);
+	}
+
+	b43_phy_write(dev, B43_NPHY_ENDROP_TLEN, 0x2);
+
+	b43_ntab_write(dev, B43_NTAB32(16, 0x100), 20);
+	b43_ntab_write_bulk(dev, B43_NTAB16(7, 0x138), 2, ntab7_138_146);
+	b43_ntab_write(dev, B43_NTAB16(7, 0x141), 0x77);
+	b43_ntab_write_bulk(dev, B43_NTAB16(7, 0x133), 3, ntab7_133);
+	b43_ntab_write_bulk(dev, B43_NTAB16(7, 0x146), 2, ntab7_138_146);
+	b43_ntab_write(dev, B43_NTAB16(7, 0x123), 0x77);
+	b43_ntab_write(dev, B43_NTAB16(7, 0x12A), 0x77);
+
+	if (!phy->is_40mhz) {
+		b43_ntab_write(dev, B43_NTAB32(16, 0x03), 0x18D);
+		b43_ntab_write(dev, B43_NTAB32(16, 0x7F), 0x18D);
+	} else {
+		b43_ntab_write(dev, B43_NTAB32(16, 0x03), 0x14D);
+		b43_ntab_write(dev, B43_NTAB32(16, 0x7F), 0x14D);
+	}
+
+	b43_nphy_gain_ctl_workarounds(dev);
+
+	/* TODO
+	b43_ntab_write_bulk(dev, B43_NTAB16(8, 0x08), 4,
+			    aux_adc_vmid_rev7_core0);
+	b43_ntab_write_bulk(dev, B43_NTAB16(8, 0x18), 4,
+			    aux_adc_vmid_rev7_core1);
+	b43_ntab_write_bulk(dev, B43_NTAB16(8, 0x0C), 4,
+			    aux_adc_gain_rev7);
+	b43_ntab_write_bulk(dev, B43_NTAB16(8, 0x1C), 4,
+			    aux_adc_gain_rev7);
+	*/
+}
+
 static void b43_nphy_workarounds_rev3plus(struct b43_wldev *dev)
 {
 	struct b43_phy_n *nphy = dev->phy.n;
@@ -1916,7 +2482,7 @@ static void b43_nphy_workarounds_rev3plus(struct b43_wldev *dev)
 			rx2tx_delays[6] = 1;
 			rx2tx_events[7] = 0x1F;
 		}
-		b43_nphy_set_rf_sequence(dev, 1, rx2tx_events, rx2tx_delays,
+		b43_nphy_set_rf_sequence(dev, 0, rx2tx_events, rx2tx_delays,
 					 ARRAY_SIZE(rx2tx_events));
 	}
 
@@ -1926,8 +2492,13 @@ static void b43_nphy_workarounds_rev3plus(struct b43_wldev *dev)
 
 	b43_phy_maskset(dev, 0x294, 0xF0FF, 0x0700);
 
-	b43_ntab_write(dev, B43_NTAB32(16, 3), 0x18D);
-	b43_ntab_write(dev, B43_NTAB32(16, 127), 0x18D);
+	if (!dev->phy.is_40mhz) {
+		b43_ntab_write(dev, B43_NTAB32(16, 3), 0x18D);
+		b43_ntab_write(dev, B43_NTAB32(16, 127), 0x18D);
+	} else {
+		b43_ntab_write(dev, B43_NTAB32(16, 3), 0x14D);
+		b43_ntab_write(dev, B43_NTAB32(16, 127), 0x14D);
+	}
 
 	b43_nphy_gain_ctl_workarounds(dev);
 
@@ -1963,13 +2534,14 @@ static void b43_nphy_workarounds_rev3plus(struct b43_wldev *dev)
 	b43_ntab_write(dev, B43_NTAB32(30, 3), tmp32);
 
 	if (dev->phy.rev == 4 &&
-		b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) {
+	    b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) {
 		b43_radio_write(dev, B2056_TX0 | B2056_TX_GMBB_IDAC,
 				0x70);
 		b43_radio_write(dev, B2056_TX1 | B2056_TX_GMBB_IDAC,
 				0x70);
 	}
 
+	/* Dropped probably-always-true condition */
 	b43_phy_write(dev, 0x224, 0x03eb);
 	b43_phy_write(dev, 0x225, 0x03eb);
 	b43_phy_write(dev, 0x226, 0x0341);
@@ -1982,6 +2554,9 @@ static void b43_nphy_workarounds_rev3plus(struct b43_wldev *dev)
 	b43_phy_write(dev, 0x22d, 0x042b);
 	b43_phy_write(dev, 0x22e, 0x0381);
 	b43_phy_write(dev, 0x22f, 0x0381);
+
+	if (dev->phy.rev >= 6 && sprom->boardflags2_lo & B43_BFL2_SINGLEANT_CCK)
+		; /* TODO: 0x0080000000000000 HF */
 }
 
 static void b43_nphy_workarounds_rev1_2(struct b43_wldev *dev)
@@ -1996,6 +2571,12 @@ static void b43_nphy_workarounds_rev1_2(struct b43_wldev *dev)
 	u8 events2[7] = { 0x0, 0x3, 0x5, 0x4, 0x2, 0x1, 0x8 };
 	u8 delays2[7] = { 0x8, 0x6, 0x2, 0x4, 0x4, 0x6, 0x1 };
 
+	if (sprom->boardflags2_lo & B43_BFL2_SKWRKFEM_BRD ||
+	    dev->dev->board_type == 0x8B) {
+		delays1[0] = 0x1;
+		delays1[5] = 0x14;
+	}
+
 	if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ &&
 	    nphy->band5g_pwrgain) {
 		b43_radio_mask(dev, B2055_C1_TX_RF_SPARE, ~0x8);
@@ -2007,8 +2588,10 @@ static void b43_nphy_workarounds_rev1_2(struct b43_wldev *dev)
 
 	b43_ntab_write(dev, B43_NTAB16(8, 0x00), 0x000A);
 	b43_ntab_write(dev, B43_NTAB16(8, 0x10), 0x000A);
-	b43_ntab_write(dev, B43_NTAB16(8, 0x02), 0xCDAA);
-	b43_ntab_write(dev, B43_NTAB16(8, 0x12), 0xCDAA);
+	if (dev->phy.rev < 3) {
+		b43_ntab_write(dev, B43_NTAB16(8, 0x02), 0xCDAA);
+		b43_ntab_write(dev, B43_NTAB16(8, 0x12), 0xCDAA);
+	}
 
 	if (dev->phy.rev < 2) {
 		b43_ntab_write(dev, B43_NTAB16(8, 0x08), 0x0000);
@@ -2024,11 +2607,6 @@ static void b43_nphy_workarounds_rev1_2(struct b43_wldev *dev)
 	b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_LO2, 0x2D8);
 	b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_UP2, 0x301);
 
-	if (sprom->boardflags2_lo & B43_BFL2_SKWRKFEM_BRD &&
-	    dev->dev->board_type == 0x8B) {
-		delays1[0] = 0x1;
-		delays1[5] = 0x14;
-	}
 	b43_nphy_set_rf_sequence(dev, 0, events1, delays1, 7);
 	b43_nphy_set_rf_sequence(dev, 1, events2, delays2, 7);
 
@@ -2055,11 +2633,13 @@ static void b43_nphy_workarounds_rev1_2(struct b43_wldev *dev)
 	b43_phy_write(dev, B43_NPHY_PHASETR_B1, 0xCD);
 	b43_phy_write(dev, B43_NPHY_PHASETR_B2, 0x20);
 
-	b43_phy_mask(dev, B43_NPHY_PIL_DW1,
-			~B43_NPHY_PIL_DW_64QAM & 0xFFFF);
-	b43_phy_write(dev, B43_NPHY_TXF_20CO_S2B1, 0xB5);
-	b43_phy_write(dev, B43_NPHY_TXF_20CO_S2B2, 0xA4);
-	b43_phy_write(dev, B43_NPHY_TXF_20CO_S2B3, 0x00);
+	if (dev->phy.rev < 3) {
+		b43_phy_mask(dev, B43_NPHY_PIL_DW1,
+			     ~B43_NPHY_PIL_DW_64QAM & 0xFFFF);
+		b43_phy_write(dev, B43_NPHY_TXF_20CO_S2B1, 0xB5);
+		b43_phy_write(dev, B43_NPHY_TXF_20CO_S2B2, 0xA4);
+		b43_phy_write(dev, B43_NPHY_TXF_20CO_S2B3, 0x00);
+	}
 
 	if (dev->phy.rev == 2)
 		b43_phy_set(dev, B43_NPHY_FINERX2_CGC,
@@ -2083,7 +2663,9 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
 	b43_phy_set(dev, B43_NPHY_IQFLIP,
 		    B43_NPHY_IQFLIP_ADC1 | B43_NPHY_IQFLIP_ADC2);
 
-	if (dev->phy.rev >= 3)
+	if (dev->phy.rev >= 7)
+		b43_nphy_workarounds_rev7plus(dev);
+	else if (dev->phy.rev >= 3)
 		b43_nphy_workarounds_rev3plus(dev);
 	else
 		b43_nphy_workarounds_rev1_2(dev);
@@ -2542,7 +3124,7 @@ static void b43_nphy_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
 		b43_nphy_ipa_internal_tssi_setup(dev);
 
 	if (phy->rev >= 7)
-		; /* TODO: Override Rev7 with 0x2000, 0, 3, 0, 0 as arguments */
+		b43_nphy_rf_control_override_rev7(dev, 0x2000, 0, 3, false, 0);
 	else if (phy->rev >= 3)
 		b43_nphy_rf_control_override(dev, 0x2000, 0, 3, false);
 
@@ -2554,7 +3136,7 @@ static void b43_nphy_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
 	b43_nphy_rssi_select(dev, 0, 0);
 
 	if (phy->rev >= 7)
-		; /* TODO: Override Rev7 with 0x2000, 0, 3, 1, 0 as arguments */
+		b43_nphy_rf_control_override_rev7(dev, 0x2000, 0, 3, true, 0);
 	else if (phy->rev >= 3)
 		b43_nphy_rf_control_override(dev, 0x2000, 0, 3, true);
 
@@ -4761,6 +5343,7 @@ static void b43_nphy_op_prepare_structs(struct b43_wldev *dev)
 	nphy->hang_avoid = (phy->rev == 3 || phy->rev == 4);
 	nphy->spur_avoid = (phy->rev >= 3) ?
 				B43_SPUR_AVOID_AUTO : B43_SPUR_AVOID_DISABLE;
+	nphy->init_por = true;
 	nphy->gain_boost = true; /* this way we follow wl, assume it is true */
 	nphy->txrx_chain = 2; /* sth different than 0 and 1 for now */
 	nphy->phyrxchain = 3; /* to avoid b43_nphy_set_rx_core_state like wl */
@@ -4801,6 +5384,8 @@ static void b43_nphy_op_prepare_structs(struct b43_wldev *dev)
 		nphy->ipa2g_on = sprom->fem.ghz2.extpa_gain == 2;
 		nphy->ipa5g_on = sprom->fem.ghz5.extpa_gain == 2;
 	}
+
+	nphy->init_por = true;
 }
 
 static void b43_nphy_op_free(struct b43_wldev *dev)
@@ -4887,7 +5472,9 @@ static void b43_nphy_op_software_rfkill(struct b43_wldev *dev,
 	if (blocked) {
 		b43_phy_mask(dev, B43_NPHY_RFCTL_CMD,
 				~B43_NPHY_RFCTL_CMD_CHIP0PU);
-		if (dev->phy.rev >= 3) {
+		if (dev->phy.rev >= 7) {
+			/* TODO */
+		} else if (dev->phy.rev >= 3) {
 			b43_radio_mask(dev, 0x09, ~0x2);
 
 			b43_radio_write(dev, 0x204D, 0);
@@ -4905,7 +5492,10 @@ static void b43_nphy_op_software_rfkill(struct b43_wldev *dev,
 			b43_radio_write(dev, 0x3064, 0);
 		}
 	} else {
-		if (dev->phy.rev >= 3) {
+		if (dev->phy.rev >= 7) {
+			b43_radio_2057_init(dev);
+			b43_switch_channel(dev, dev->phy.channel);
+		} else if (dev->phy.rev >= 3) {
 			b43_radio_init2056(dev);
 			b43_switch_channel(dev, dev->phy.channel);
 		} else {
diff --git a/drivers/net/wireless/b43/phy_n.h b/drivers/net/wireless/b43/phy_n.h
index fd12b386fea..092c0140c24 100644
--- a/drivers/net/wireless/b43/phy_n.h
+++ b/drivers/net/wireless/b43/phy_n.h
@@ -785,6 +785,7 @@ struct b43_phy_n {
 	u16 papd_epsilon_offset[2];
 	s32 preamble_override;
 	u32 bb_mult_save;
+	bool init_por;
 
 	bool gain_boost;
 	bool elna_gain_config;
diff --git a/drivers/net/wireless/b43/radio_2057.c b/drivers/net/wireless/b43/radio_2057.c
new file mode 100644
index 00000000000..d61d6830c5c
--- /dev/null
+++ b/drivers/net/wireless/b43/radio_2057.c
@@ -0,0 +1,141 @@
+/*
+
+  Broadcom B43 wireless driver
+  IEEE 802.11n 2057 radio device data tables
+
+  Copyright (c) 2010 Rafał Miłecki <zajec5@gmail.com>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43.h"
+#include "radio_2057.h"
+#include "phy_common.h"
+
+static u16 r2057_rev4_init[42][2] = {
+	{ 0x0E, 0x20 }, { 0x31, 0x00 }, { 0x32, 0x00 }, { 0x33, 0x00 },
+	{ 0x35, 0x26 }, { 0x3C, 0xff }, { 0x3D, 0xff }, { 0x3E, 0xff },
+	{ 0x3F, 0xff }, { 0x62, 0x33 }, { 0x8A, 0xf0 }, { 0x8B, 0x10 },
+	{ 0x8C, 0xf0 }, { 0x91, 0x3f }, { 0x92, 0x36 }, { 0xA4, 0x8c },
+	{ 0xA8, 0x55 }, { 0xAF, 0x01 }, { 0x10F, 0xf0 }, { 0x110, 0x10 },
+	{ 0x111, 0xf0 }, { 0x116, 0x3f }, { 0x117, 0x36 }, { 0x129, 0x8c },
+	{ 0x12D, 0x55 }, { 0x134, 0x01 }, { 0x15E, 0x00 }, { 0x15F, 0x00 },
+	{ 0x160, 0x00 }, { 0x161, 0x00 }, { 0x162, 0x00 }, { 0x163, 0x00 },
+	{ 0x169, 0x02 }, { 0x16A, 0x00 }, { 0x16B, 0x00 }, { 0x16C, 0x00 },
+	{ 0x1A4, 0x00 }, { 0x1A5, 0x00 }, { 0x1A6, 0x00 }, { 0x1AA, 0x00 },
+	{ 0x1AB, 0x00 }, { 0x1AC, 0x00 },
+};
+
+static u16 r2057_rev5_init[44][2] = {
+	{ 0x00, 0x00 }, { 0x01, 0x57 }, { 0x02, 0x20 }, { 0x23, 0x6 },
+	{ 0x31, 0x00 }, { 0x32, 0x00 }, { 0x33, 0x00 }, { 0x51, 0x70 },
+	{ 0x59, 0x88 }, { 0x5C, 0x20 }, { 0x62, 0x33 }, { 0x63, 0x0f },
+	{ 0x64, 0x0f }, { 0x81, 0x01 }, { 0x91, 0x3f }, { 0x92, 0x36 },
+	{ 0xA1, 0x20 }, { 0xD6, 0x70 }, { 0xDE, 0x88 }, { 0xE1, 0x20 },
+	{ 0xE8, 0x0f }, { 0xE9, 0x0f }, { 0x106, 0x01 }, { 0x116, 0x3f },
+	{ 0x117, 0x36 }, { 0x126, 0x20 }, { 0x15E, 0x00 }, { 0x15F, 0x00 },
+	{ 0x160, 0x00 }, { 0x161, 0x00 }, { 0x162, 0x00 }, { 0x163, 0x00 },
+	{ 0x16A, 0x00 }, { 0x16B, 0x00 }, { 0x16C, 0x00 }, { 0x1A4, 0x00 },
+	{ 0x1A5, 0x00 }, { 0x1A6, 0x00 }, { 0x1AA, 0x00 }, { 0x1AB, 0x00 },
+	{ 0x1AC, 0x00 }, { 0x1B7, 0x0c }, { 0x1C1, 0x01 }, { 0x1C2, 0x80 },
+};
+
+static u16 r2057_rev5a_init[45][2] = {
+	{ 0x00, 0x15 }, { 0x01, 0x57 }, { 0x02, 0x20 }, { 0x23, 0x6 },
+	{ 0x31, 0x00 }, { 0x32, 0x00 }, { 0x33, 0x00 }, { 0x51, 0x70 },
+	{ 0x59, 0x88 }, { 0x5C, 0x20 }, { 0x62, 0x33 }, { 0x63, 0x0f },
+	{ 0x64, 0x0f }, { 0x81, 0x01 }, { 0x91, 0x3f }, { 0x92, 0x36 },
+	{ 0xC9, 0x01 }, { 0xD6, 0x70 }, { 0xDE, 0x88 }, { 0xE1, 0x20 },
+	{ 0xE8, 0x0f }, { 0xE9, 0x0f }, { 0x106, 0x01 }, { 0x116, 0x3f },
+	{ 0x117, 0x36 }, { 0x126, 0x20 }, { 0x14E, 0x01 }, { 0x15E, 0x00 },
+	{ 0x15F, 0x00 }, { 0x160, 0x00 }, { 0x161, 0x00 }, { 0x162, 0x00 },
+	{ 0x163, 0x00 }, { 0x16A, 0x00 }, { 0x16B, 0x00 }, { 0x16C, 0x00 },
+	{ 0x1A4, 0x00 }, { 0x1A5, 0x00 }, { 0x1A6, 0x00 }, { 0x1AA, 0x00 },
+	{ 0x1AB, 0x00 }, { 0x1AC, 0x00 }, { 0x1B7, 0x0c }, { 0x1C1, 0x01 },
+	{ 0x1C2, 0x80 },
+};
+
+static u16 r2057_rev7_init[54][2] = {
+	{ 0x00, 0x00 }, { 0x01, 0x57 }, { 0x02, 0x20 }, { 0x31, 0x00 },
+	{ 0x32, 0x00 }, { 0x33, 0x00 }, { 0x51, 0x70 }, { 0x59, 0x88 },
+	{ 0x5C, 0x20 }, { 0x62, 0x33 }, { 0x63, 0x0f }, { 0x64, 0x13 },
+	{ 0x66, 0xee }, { 0x6E, 0x58 }, { 0x75, 0x13 }, { 0x7B, 0x13 },
+	{ 0x7C, 0x14 }, { 0x7D, 0xee }, { 0x81, 0x01 }, { 0x91, 0x3f },
+	{ 0x92, 0x36 }, { 0xA1, 0x20 }, { 0xD6, 0x70 }, { 0xDE, 0x88 },
+	{ 0xE1, 0x20 }, { 0xE8, 0x0f }, { 0xE9, 0x13 }, { 0xEB, 0xee },
+	{ 0xF3, 0x58 }, { 0xFA, 0x13 }, { 0x100, 0x13 }, { 0x101, 0x14 },
+	{ 0x102, 0xee }, { 0x106, 0x01 }, { 0x116, 0x3f }, { 0x117, 0x36 },
+	{ 0x126, 0x20 }, { 0x15E, 0x00 }, { 0x15F, 0x00 }, { 0x160, 0x00 },
+	{ 0x161, 0x00 }, { 0x162, 0x00 }, { 0x163, 0x00 }, { 0x16A, 0x00 },
+	{ 0x16B, 0x00 }, { 0x16C, 0x00 }, { 0x1A4, 0x00 }, { 0x1A5, 0x00 },
+	{ 0x1A6, 0x00 }, { 0x1AA, 0x00 }, { 0x1AB, 0x00 }, { 0x1AC, 0x00 },
+	{ 0x1B7, 0x05 }, { 0x1C2, 0xa0 },
+};
+
+static u16 r2057_rev8_init[54][2] = {
+	{ 0x00, 0x08 }, { 0x01, 0x57 }, { 0x02, 0x20 }, { 0x31, 0x00 },
+	{ 0x32, 0x00 }, { 0x33, 0x00 }, { 0x51, 0x70 }, { 0x59, 0x88 },
+	{ 0x5C, 0x20 }, { 0x62, 0x33 }, { 0x63, 0x0f }, { 0x64, 0x0f },
+	{ 0x6E, 0x58 }, { 0x75, 0x13 }, { 0x7B, 0x13 }, { 0x7C, 0x0f },
+	{ 0x7D, 0xee }, { 0x81, 0x01 }, { 0x91, 0x3f }, { 0x92, 0x36 },
+	{ 0xA1, 0x20 }, { 0xC9, 0x01 }, { 0xD6, 0x70 }, { 0xDE, 0x88 },
+	{ 0xE1, 0x20 }, { 0xE8, 0x0f }, { 0xE9, 0x0f }, { 0xF3, 0x58 },
+	{ 0xFA, 0x13 }, { 0x100, 0x13 }, { 0x101, 0x0f }, { 0x102, 0xee },
+	{ 0x106, 0x01 }, { 0x116, 0x3f }, { 0x117, 0x36 }, { 0x126, 0x20 },
+	{ 0x14E, 0x01 }, { 0x15E, 0x00 }, { 0x15F, 0x00 }, { 0x160, 0x00 },
+	{ 0x161, 0x00 }, { 0x162, 0x00 }, { 0x163, 0x00 }, { 0x16A, 0x00 },
+	{ 0x16B, 0x00 }, { 0x16C, 0x00 }, { 0x1A4, 0x00 }, { 0x1A5, 0x00 },
+	{ 0x1A6, 0x00 }, { 0x1AA, 0x00 }, { 0x1AB, 0x00 }, { 0x1AC, 0x00 },
+	{ 0x1B7, 0x05 }, { 0x1C2, 0xa0 },
+};
+
+void r2057_upload_inittabs(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	u16 *table = NULL;
+	u16 size, i;
+
+	if (phy->rev == 7) {
+		table = r2057_rev4_init[0];
+		size = ARRAY_SIZE(r2057_rev4_init);
+	} else if (phy->rev == 8 || phy->rev == 9) {
+		if (phy->radio_rev == 5) {
+			if (phy->radio_rev == 8) {
+				table = r2057_rev5_init[0];
+				size = ARRAY_SIZE(r2057_rev5_init);
+			} else {
+				table = r2057_rev5a_init[0];
+				size = ARRAY_SIZE(r2057_rev5a_init);
+			}
+		} else if (phy->radio_rev == 7) {
+			table = r2057_rev7_init[0];
+			size = ARRAY_SIZE(r2057_rev7_init);
+		} else if (phy->radio_rev == 9) {
+			table = r2057_rev8_init[0];
+			size = ARRAY_SIZE(r2057_rev8_init);
+		}
+	}
+
+	if (table) {
+		for (i = 0; i < 10; i++) {
+			pr_info("radio_write 0x%X ", *table);
+			table++;
+			pr_info("0x%X\n", *table);
+			table++;
+		}
+	}
+}
diff --git a/drivers/net/wireless/b43/radio_2057.h b/drivers/net/wireless/b43/radio_2057.h
new file mode 100644
index 00000000000..eeebd8fbeb0
--- /dev/null
+++ b/drivers/net/wireless/b43/radio_2057.h
@@ -0,0 +1,430 @@
+#ifndef B43_RADIO_2057_H_
+#define B43_RADIO_2057_H_
+
+#include <linux/types.h>
+
+#include "tables_nphy.h"
+
+#define R2057_DACBUF_VINCM_CORE0		0x000
+#define R2057_IDCODE				0x001
+#define R2057_RCCAL_MASTER			0x002
+#define R2057_RCCAL_CAP_SIZE			0x003
+#define R2057_RCAL_CONFIG			0x004
+#define R2057_GPAIO_CONFIG			0x005
+#define R2057_GPAIO_SEL1			0x006
+#define R2057_GPAIO_SEL0			0x007
+#define R2057_CLPO_CONFIG			0x008
+#define R2057_BANDGAP_CONFIG			0x009
+#define R2057_BANDGAP_RCAL_TRIM			0x00a
+#define R2057_AFEREG_CONFIG			0x00b
+#define R2057_TEMPSENSE_CONFIG			0x00c
+#define R2057_XTAL_CONFIG1			0x00d
+#define R2057_XTAL_ICORE_SIZE			0x00e
+#define R2057_XTAL_BUF_SIZE			0x00f
+#define R2057_XTAL_PULLCAP_SIZE			0x010
+#define R2057_RFPLL_MASTER			0x011
+#define R2057_VCOMONITOR_VTH_L			0x012
+#define R2057_VCOMONITOR_VTH_H			0x013
+#define R2057_VCOCAL_BIASRESET_RFPLLREG_VOUT	0x014
+#define R2057_VCO_VARCSIZE_IDAC			0x015
+#define R2057_VCOCAL_COUNTVAL0			0x016
+#define R2057_VCOCAL_COUNTVAL1			0x017
+#define R2057_VCOCAL_INTCLK_COUNT		0x018
+#define R2057_VCOCAL_MASTER			0x019
+#define R2057_VCOCAL_NUMCAPCHANGE		0x01a
+#define R2057_VCOCAL_WINSIZE			0x01b
+#define R2057_VCOCAL_DELAY_AFTER_REFRESH	0x01c
+#define R2057_VCOCAL_DELAY_AFTER_CLOSELOOP	0x01d
+#define R2057_VCOCAL_DELAY_AFTER_OPENLOOP	0x01e
+#define R2057_VCOCAL_DELAY_BEFORE_OPENLOOP	0x01f
+#define R2057_VCO_FORCECAPEN_FORCECAP1		0x020
+#define R2057_VCO_FORCECAP0			0x021
+#define R2057_RFPLL_REFMASTER_SPAREXTALSIZE	0x022
+#define R2057_RFPLL_PFD_RESET_PW		0x023
+#define R2057_RFPLL_LOOPFILTER_R2		0x024
+#define R2057_RFPLL_LOOPFILTER_R1		0x025
+#define R2057_RFPLL_LOOPFILTER_C3		0x026
+#define R2057_RFPLL_LOOPFILTER_C2		0x027
+#define R2057_RFPLL_LOOPFILTER_C1		0x028
+#define R2057_CP_KPD_IDAC			0x029
+#define R2057_RFPLL_IDACS			0x02a
+#define R2057_RFPLL_MISC_EN			0x02b
+#define R2057_RFPLL_MMD0			0x02c
+#define R2057_RFPLL_MMD1			0x02d
+#define R2057_RFPLL_MISC_CAL_RESETN		0x02e
+#define R2057_JTAGXTAL_SIZE_CPBIAS_FILTRES	0x02f
+#define R2057_VCO_ALCREF_BBPLLXTAL_SIZE		0x030
+#define R2057_VCOCAL_READCAP0			0x031
+#define R2057_VCOCAL_READCAP1			0x032
+#define R2057_VCOCAL_STATUS			0x033
+#define R2057_LOGEN_PUS				0x034
+#define R2057_LOGEN_PTAT_RESETS			0x035
+#define R2057_VCOBUF_IDACS			0x036
+#define R2057_VCOBUF_TUNE			0x037
+#define R2057_CMOSBUF_TX2GQ_IDACS		0x038
+#define R2057_CMOSBUF_TX2GI_IDACS		0x039
+#define R2057_CMOSBUF_TX5GQ_IDACS		0x03a
+#define R2057_CMOSBUF_TX5GI_IDACS		0x03b
+#define R2057_CMOSBUF_RX2GQ_IDACS		0x03c
+#define R2057_CMOSBUF_RX2GI_IDACS		0x03d
+#define R2057_CMOSBUF_RX5GQ_IDACS		0x03e
+#define R2057_CMOSBUF_RX5GI_IDACS		0x03f
+#define R2057_LOGEN_MX2G_IDACS			0x040
+#define R2057_LOGEN_MX2G_TUNE			0x041
+#define R2057_LOGEN_MX5G_IDACS			0x042
+#define R2057_LOGEN_MX5G_TUNE			0x043
+#define R2057_LOGEN_MX5G_RCCR			0x044
+#define R2057_LOGEN_INDBUF2G_IDAC		0x045
+#define R2057_LOGEN_INDBUF2G_IBOOST		0x046
+#define R2057_LOGEN_INDBUF2G_TUNE		0x047
+#define R2057_LOGEN_INDBUF5G_IDAC		0x048
+#define R2057_LOGEN_INDBUF5G_IBOOST		0x049
+#define R2057_LOGEN_INDBUF5G_TUNE		0x04a
+#define R2057_CMOSBUF_TX_RCCR			0x04b
+#define R2057_CMOSBUF_RX_RCCR			0x04c
+#define R2057_LOGEN_SEL_PKDET			0x04d
+#define R2057_CMOSBUF_SHAREIQ_PTAT		0x04e
+#define R2057_RXTXBIAS_CONFIG_CORE0		0x04f
+#define R2057_TXGM_TXRF_PUS_CORE0		0x050
+#define R2057_TXGM_IDAC_BLEED_CORE0		0x051
+#define R2057_TXGM_GAIN_CORE0			0x056
+#define R2057_TXGM2G_PKDET_PUS_CORE0		0x057
+#define R2057_PAD2G_PTATS_CORE0			0x058
+#define R2057_PAD2G_IDACS_CORE0			0x059
+#define R2057_PAD2G_BOOST_PU_CORE0		0x05a
+#define R2057_PAD2G_CASCV_GAIN_CORE0		0x05b
+#define R2057_TXMIX2G_TUNE_BOOST_PU_CORE0	0x05c
+#define R2057_TXMIX2G_LODC_CORE0		0x05d
+#define R2057_PAD2G_TUNE_PUS_CORE0		0x05e
+#define R2057_IPA2G_GAIN_CORE0			0x05f
+#define R2057_TSSI2G_SPARE1_CORE0		0x060
+#define R2057_TSSI2G_SPARE2_CORE0		0x061
+#define R2057_IPA2G_TUNEV_CASCV_PTAT_CORE0	0x062
+#define R2057_IPA2G_IMAIN_CORE0			0x063
+#define R2057_IPA2G_CASCONV_CORE0		0x064
+#define R2057_IPA2G_CASCOFFV_CORE0		0x065
+#define R2057_IPA2G_BIAS_FILTER_CORE0		0x066
+#define R2057_TX5G_PKDET_CORE0			0x069
+#define R2057_PGA_PTAT_TXGM5G_PU_CORE0		0x06a
+#define R2057_PAD5G_PTATS1_CORE0		0x06b
+#define R2057_PAD5G_CLASS_PTATS2_CORE0		0x06c
+#define R2057_PGA_BOOSTPTAT_IMAIN_CORE0		0x06d
+#define R2057_PAD5G_CASCV_IMAIN_CORE0		0x06e
+#define R2057_TXMIX5G_IBOOST_PAD_IAUX_CORE0	0x06f
+#define R2057_PGA_BOOST_TUNE_CORE0		0x070
+#define R2057_PGA_GAIN_CORE0			0x071
+#define R2057_PAD5G_CASCOFFV_GAIN_PUS_CORE0	0x072
+#define R2057_TXMIX5G_BOOST_TUNE_CORE0		0x073
+#define R2057_PAD5G_TUNE_MISC_PUS_CORE0		0x074
+#define R2057_IPA5G_IAUX_CORE0			0x075
+#define R2057_IPA5G_GAIN_CORE0			0x076
+#define R2057_TSSI5G_SPARE1_CORE0		0x077
+#define R2057_TSSI5G_SPARE2_CORE0		0x078
+#define R2057_IPA5G_CASCOFFV_PU_CORE0		0x079
+#define R2057_IPA5G_PTAT_CORE0			0x07a
+#define R2057_IPA5G_IMAIN_CORE0			0x07b
+#define R2057_IPA5G_CASCONV_CORE0		0x07c
+#define R2057_IPA5G_BIAS_FILTER_CORE0		0x07d
+#define R2057_PAD_BIAS_FILTER_BWS_CORE0		0x080
+#define R2057_TR2G_CONFIG1_CORE0_NU		0x081
+#define R2057_TR2G_CONFIG2_CORE0_NU		0x082
+#define R2057_LNA5G_RFEN_CORE0			0x083
+#define R2057_TR5G_CONFIG2_CORE0_NU		0x084
+#define R2057_RXRFBIAS_IBOOST_PU_CORE0		0x085
+#define R2057_RXRF_IABAND_RXGM_IMAIN_PTAT_CORE0	0x086
+#define R2057_RXGM_CMFBITAIL_AUXPTAT_CORE0	0x087
+#define R2057_RXMIX_ICORE_RXGM_IAUX_CORE0	0x088
+#define R2057_RXMIX_CMFBITAIL_PU_CORE0		0x089
+#define R2057_LNA2_IMAIN_PTAT_PU_CORE0		0x08a
+#define R2057_LNA2_IAUX_PTAT_CORE0		0x08b
+#define R2057_LNA1_IMAIN_PTAT_PU_CORE0		0x08c
+#define R2057_LNA15G_INPUT_MATCH_TUNE_CORE0	0x08d
+#define R2057_RXRFBIAS_BANDSEL_CORE0		0x08e
+#define R2057_TIA_CONFIG_CORE0			0x08f
+#define R2057_TIA_IQGAIN_CORE0			0x090
+#define R2057_TIA_IBIAS2_CORE0			0x091
+#define R2057_TIA_IBIAS1_CORE0			0x092
+#define R2057_TIA_SPARE_Q_CORE0			0x093
+#define R2057_TIA_SPARE_I_CORE0			0x094
+#define R2057_RXMIX2G_PUS_CORE0			0x095
+#define R2057_RXMIX2G_VCMREFS_CORE0		0x096
+#define R2057_RXMIX2G_LODC_QI_CORE0		0x097
+#define R2057_W12G_BW_LNA2G_PUS_CORE0		0x098
+#define R2057_LNA2G_GAIN_CORE0			0x099
+#define R2057_LNA2G_TUNE_CORE0			0x09a
+#define R2057_RXMIX5G_PUS_CORE0			0x09b
+#define R2057_RXMIX5G_VCMREFS_CORE0		0x09c
+#define R2057_RXMIX5G_LODC_QI_CORE0		0x09d
+#define R2057_W15G_BW_LNA5G_PUS_CORE0		0x09e
+#define R2057_LNA5G_GAIN_CORE0			0x09f
+#define R2057_LNA5G_TUNE_CORE0			0x0a0
+#define R2057_LPFSEL_TXRX_RXBB_PUS_CORE0	0x0a1
+#define R2057_RXBB_BIAS_MASTER_CORE0		0x0a2
+#define R2057_RXBB_VGABUF_IDACS_CORE0		0x0a3
+#define R2057_LPF_VCMREF_TXBUF_VCMREF_CORE0	0x0a4
+#define R2057_TXBUF_VINCM_CORE0			0x0a5
+#define R2057_TXBUF_IDACS_CORE0			0x0a6
+#define R2057_LPF_RESP_RXBUF_BW_CORE0		0x0a7
+#define R2057_RXBB_CC_CORE0			0x0a8
+#define R2057_RXBB_SPARE3_CORE0			0x0a9
+#define R2057_RXBB_RCCAL_HPC_CORE0		0x0aa
+#define R2057_LPF_IDACS_CORE0			0x0ab
+#define R2057_LPFBYP_DCLOOP_BYP_IDAC_CORE0	0x0ac
+#define R2057_TXBUF_GAIN_CORE0			0x0ad
+#define R2057_AFELOOPBACK_AACI_RESP_CORE0	0x0ae
+#define R2057_RXBUF_DEGEN_CORE0			0x0af
+#define R2057_RXBB_SPARE2_CORE0			0x0b0
+#define R2057_RXBB_SPARE1_CORE0			0x0b1
+#define R2057_RSSI_MASTER_CORE0			0x0b2
+#define R2057_W2_MASTER_CORE0			0x0b3
+#define R2057_NB_MASTER_CORE0			0x0b4
+#define R2057_W2_IDACS0_Q_CORE0			0x0b5
+#define R2057_W2_IDACS1_Q_CORE0			0x0b6
+#define R2057_W2_IDACS0_I_CORE0			0x0b7
+#define R2057_W2_IDACS1_I_CORE0			0x0b8
+#define R2057_RSSI_GPAIOSEL_W1_IDACS_CORE0	0x0b9
+#define R2057_NB_IDACS_Q_CORE0			0x0ba
+#define R2057_NB_IDACS_I_CORE0			0x0bb
+#define R2057_BACKUP4_CORE0			0x0c1
+#define R2057_BACKUP3_CORE0			0x0c2
+#define R2057_BACKUP2_CORE0			0x0c3
+#define R2057_BACKUP1_CORE0			0x0c4
+#define R2057_SPARE16_CORE0			0x0c5
+#define R2057_SPARE15_CORE0			0x0c6
+#define R2057_SPARE14_CORE0			0x0c7
+#define R2057_SPARE13_CORE0			0x0c8
+#define R2057_SPARE12_CORE0			0x0c9
+#define R2057_SPARE11_CORE0			0x0ca
+#define R2057_TX2G_BIAS_RESETS_CORE0		0x0cb
+#define R2057_TX5G_BIAS_RESETS_CORE0		0x0cc
+#define R2057_IQTEST_SEL_PU			0x0cd
+#define R2057_XTAL_CONFIG2			0x0ce
+#define R2057_BUFS_MISC_LPFBW_CORE0		0x0cf
+#define R2057_TXLPF_RCCAL_CORE0			0x0d0
+#define R2057_RXBB_GPAIOSEL_RXLPF_RCCAL_CORE0	0x0d1
+#define R2057_LPF_GAIN_CORE0			0x0d2
+#define R2057_DACBUF_IDACS_BW_CORE0		0x0d3
+#define R2057_RXTXBIAS_CONFIG_CORE1		0x0d4
+#define R2057_TXGM_TXRF_PUS_CORE1		0x0d5
+#define R2057_TXGM_IDAC_BLEED_CORE1		0x0d6
+#define R2057_TXGM_GAIN_CORE1			0x0db
+#define R2057_TXGM2G_PKDET_PUS_CORE1		0x0dc
+#define R2057_PAD2G_PTATS_CORE1			0x0dd
+#define R2057_PAD2G_IDACS_CORE1			0x0de
+#define R2057_PAD2G_BOOST_PU_CORE1		0x0df
+#define R2057_PAD2G_CASCV_GAIN_CORE1		0x0e0
+#define R2057_TXMIX2G_TUNE_BOOST_PU_CORE1	0x0e1
+#define R2057_TXMIX2G_LODC_CORE1		0x0e2
+#define R2057_PAD2G_TUNE_PUS_CORE1		0x0e3
+#define R2057_IPA2G_GAIN_CORE1			0x0e4
+#define R2057_TSSI2G_SPARE1_CORE1		0x0e5
+#define R2057_TSSI2G_SPARE2_CORE1		0x0e6
+#define R2057_IPA2G_TUNEV_CASCV_PTAT_CORE1	0x0e7
+#define R2057_IPA2G_IMAIN_CORE1			0x0e8
+#define R2057_IPA2G_CASCONV_CORE1		0x0e9
+#define R2057_IPA2G_CASCOFFV_CORE1		0x0ea
+#define R2057_IPA2G_BIAS_FILTER_CORE1		0x0eb
+#define R2057_TX5G_PKDET_CORE1			0x0ee
+#define R2057_PGA_PTAT_TXGM5G_PU_CORE1		0x0ef
+#define R2057_PAD5G_PTATS1_CORE1		0x0f0
+#define R2057_PAD5G_CLASS_PTATS2_CORE1		0x0f1
+#define R2057_PGA_BOOSTPTAT_IMAIN_CORE1		0x0f2
+#define R2057_PAD5G_CASCV_IMAIN_CORE1		0x0f3
+#define R2057_TXMIX5G_IBOOST_PAD_IAUX_CORE1	0x0f4
+#define R2057_PGA_BOOST_TUNE_CORE1		0x0f5
+#define R2057_PGA_GAIN_CORE1			0x0f6
+#define R2057_PAD5G_CASCOFFV_GAIN_PUS_CORE1	0x0f7
+#define R2057_TXMIX5G_BOOST_TUNE_CORE1		0x0f8
+#define R2057_PAD5G_TUNE_MISC_PUS_CORE1		0x0f9
+#define R2057_IPA5G_IAUX_CORE1			0x0fa
+#define R2057_IPA5G_GAIN_CORE1			0x0fb
+#define R2057_TSSI5G_SPARE1_CORE1		0x0fc
+#define R2057_TSSI5G_SPARE2_CORE1		0x0fd
+#define R2057_IPA5G_CASCOFFV_PU_CORE1		0x0fe
+#define R2057_IPA5G_PTAT_CORE1			0x0ff
+#define R2057_IPA5G_IMAIN_CORE1			0x100
+#define R2057_IPA5G_CASCONV_CORE1		0x101
+#define R2057_IPA5G_BIAS_FILTER_CORE1		0x102
+#define R2057_PAD_BIAS_FILTER_BWS_CORE1		0x105
+#define R2057_TR2G_CONFIG1_CORE1_NU		0x106
+#define R2057_TR2G_CONFIG2_CORE1_NU		0x107
+#define R2057_LNA5G_RFEN_CORE1			0x108
+#define R2057_TR5G_CONFIG2_CORE1_NU		0x109
+#define R2057_RXRFBIAS_IBOOST_PU_CORE1		0x10a
+#define R2057_RXRF_IABAND_RXGM_IMAIN_PTAT_CORE1	0x10b
+#define R2057_RXGM_CMFBITAIL_AUXPTAT_CORE1	0x10c
+#define R2057_RXMIX_ICORE_RXGM_IAUX_CORE1	0x10d
+#define R2057_RXMIX_CMFBITAIL_PU_CORE1		0x10e
+#define R2057_LNA2_IMAIN_PTAT_PU_CORE1		0x10f
+#define R2057_LNA2_IAUX_PTAT_CORE1		0x110
+#define R2057_LNA1_IMAIN_PTAT_PU_CORE1		0x111
+#define R2057_LNA15G_INPUT_MATCH_TUNE_CORE1	0x112
+#define R2057_RXRFBIAS_BANDSEL_CORE1		0x113
+#define R2057_TIA_CONFIG_CORE1			0x114
+#define R2057_TIA_IQGAIN_CORE1			0x115
+#define R2057_TIA_IBIAS2_CORE1			0x116
+#define R2057_TIA_IBIAS1_CORE1			0x117
+#define R2057_TIA_SPARE_Q_CORE1			0x118
+#define R2057_TIA_SPARE_I_CORE1			0x119
+#define R2057_RXMIX2G_PUS_CORE1			0x11a
+#define R2057_RXMIX2G_VCMREFS_CORE1		0x11b
+#define R2057_RXMIX2G_LODC_QI_CORE1		0x11c
+#define R2057_W12G_BW_LNA2G_PUS_CORE1		0x11d
+#define R2057_LNA2G_GAIN_CORE1			0x11e
+#define R2057_LNA2G_TUNE_CORE1			0x11f
+#define R2057_RXMIX5G_PUS_CORE1			0x120
+#define R2057_RXMIX5G_VCMREFS_CORE1		0x121
+#define R2057_RXMIX5G_LODC_QI_CORE1		0x122
+#define R2057_W15G_BW_LNA5G_PUS_CORE1		0x123
+#define R2057_LNA5G_GAIN_CORE1			0x124
+#define R2057_LNA5G_TUNE_CORE1			0x125
+#define R2057_LPFSEL_TXRX_RXBB_PUS_CORE1	0x126
+#define R2057_RXBB_BIAS_MASTER_CORE1		0x127
+#define R2057_RXBB_VGABUF_IDACS_CORE1		0x128
+#define R2057_LPF_VCMREF_TXBUF_VCMREF_CORE1	0x129
+#define R2057_TXBUF_VINCM_CORE1			0x12a
+#define R2057_TXBUF_IDACS_CORE1			0x12b
+#define R2057_LPF_RESP_RXBUF_BW_CORE1		0x12c
+#define R2057_RXBB_CC_CORE1			0x12d
+#define R2057_RXBB_SPARE3_CORE1			0x12e
+#define R2057_RXBB_RCCAL_HPC_CORE1		0x12f
+#define R2057_LPF_IDACS_CORE1			0x130
+#define R2057_LPFBYP_DCLOOP_BYP_IDAC_CORE1	0x131
+#define R2057_TXBUF_GAIN_CORE1			0x132
+#define R2057_AFELOOPBACK_AACI_RESP_CORE1	0x133
+#define R2057_RXBUF_DEGEN_CORE1			0x134
+#define R2057_RXBB_SPARE2_CORE1			0x135
+#define R2057_RXBB_SPARE1_CORE1			0x136
+#define R2057_RSSI_MASTER_CORE1			0x137
+#define R2057_W2_MASTER_CORE1			0x138
+#define R2057_NB_MASTER_CORE1			0x139
+#define R2057_W2_IDACS0_Q_CORE1			0x13a
+#define R2057_W2_IDACS1_Q_CORE1			0x13b
+#define R2057_W2_IDACS0_I_CORE1			0x13c
+#define R2057_W2_IDACS1_I_CORE1			0x13d
+#define R2057_RSSI_GPAIOSEL_W1_IDACS_CORE1	0x13e
+#define R2057_NB_IDACS_Q_CORE1			0x13f
+#define R2057_NB_IDACS_I_CORE1			0x140
+#define R2057_BACKUP4_CORE1			0x146
+#define R2057_BACKUP3_CORE1			0x147
+#define R2057_BACKUP2_CORE1			0x148
+#define R2057_BACKUP1_CORE1			0x149
+#define R2057_SPARE16_CORE1			0x14a
+#define R2057_SPARE15_CORE1			0x14b
+#define R2057_SPARE14_CORE1			0x14c
+#define R2057_SPARE13_CORE1			0x14d
+#define R2057_SPARE12_CORE1			0x14e
+#define R2057_SPARE11_CORE1			0x14f
+#define R2057_TX2G_BIAS_RESETS_CORE1		0x150
+#define R2057_TX5G_BIAS_RESETS_CORE1		0x151
+#define R2057_SPARE8_CORE1			0x152
+#define R2057_SPARE7_CORE1			0x153
+#define R2057_BUFS_MISC_LPFBW_CORE1		0x154
+#define R2057_TXLPF_RCCAL_CORE1			0x155
+#define R2057_RXBB_GPAIOSEL_RXLPF_RCCAL_CORE1	0x156
+#define R2057_LPF_GAIN_CORE1			0x157
+#define R2057_DACBUF_IDACS_BW_CORE1		0x158
+#define R2057_DACBUF_VINCM_CORE1		0x159
+#define R2057_RCCAL_START_R1_Q1_P1		0x15a
+#define R2057_RCCAL_X1				0x15b
+#define R2057_RCCAL_TRC0			0x15c
+#define R2057_RCCAL_TRC1			0x15d
+#define R2057_RCCAL_DONE_OSCCAP			0x15e
+#define R2057_RCCAL_N0_0			0x15f
+#define R2057_RCCAL_N0_1			0x160
+#define R2057_RCCAL_N1_0			0x161
+#define R2057_RCCAL_N1_1			0x162
+#define R2057_RCAL_STATUS			0x163
+#define R2057_XTALPUOVR_PINCTRL			0x164
+#define R2057_OVR_REG0				0x165
+#define R2057_OVR_REG1				0x166
+#define R2057_OVR_REG2				0x167
+#define R2057_OVR_REG3				0x168
+#define R2057_OVR_REG4				0x169
+#define R2057_RCCAL_SCAP_VAL			0x16a
+#define R2057_RCCAL_BCAP_VAL			0x16b
+#define R2057_RCCAL_HPC_VAL			0x16c
+#define R2057_RCCAL_OVERRIDES			0x16d
+#define R2057_TX0_IQCAL_GAIN_BW			0x170
+#define R2057_TX0_LOFT_FINE_I			0x171
+#define R2057_TX0_LOFT_FINE_Q			0x172
+#define R2057_TX0_LOFT_COARSE_I			0x173
+#define R2057_TX0_LOFT_COARSE_Q			0x174
+#define R2057_TX0_TX_SSI_MASTER			0x175
+#define R2057_TX0_IQCAL_VCM_HG			0x176
+#define R2057_TX0_IQCAL_IDAC			0x177
+#define R2057_TX0_TSSI_VCM			0x178
+#define R2057_TX0_TX_SSI_MUX			0x179
+#define R2057_TX0_TSSIA				0x17a
+#define R2057_TX0_TSSIG				0x17b
+#define R2057_TX0_TSSI_MISC1			0x17c
+#define R2057_TX0_TXRXCOUPLE_2G_ATTEN		0x17d
+#define R2057_TX0_TXRXCOUPLE_2G_PWRUP		0x17e
+#define R2057_TX0_TXRXCOUPLE_5G_ATTEN		0x17f
+#define R2057_TX0_TXRXCOUPLE_5G_PWRUP		0x180
+#define R2057_TX1_IQCAL_GAIN_BW			0x190
+#define R2057_TX1_LOFT_FINE_I			0x191
+#define R2057_TX1_LOFT_FINE_Q			0x192
+#define R2057_TX1_LOFT_COARSE_I			0x193
+#define R2057_TX1_LOFT_COARSE_Q			0x194
+#define R2057_TX1_TX_SSI_MASTER			0x195
+#define R2057_TX1_IQCAL_VCM_HG			0x196
+#define R2057_TX1_IQCAL_IDAC			0x197
+#define R2057_TX1_TSSI_VCM			0x198
+#define R2057_TX1_TX_SSI_MUX			0x199
+#define R2057_TX1_TSSIA				0x19a
+#define R2057_TX1_TSSIG				0x19b
+#define R2057_TX1_TSSI_MISC1			0x19c
+#define R2057_TX1_TXRXCOUPLE_2G_ATTEN		0x19d
+#define R2057_TX1_TXRXCOUPLE_2G_PWRUP		0x19e
+#define R2057_TX1_TXRXCOUPLE_5G_ATTEN		0x19f
+#define R2057_TX1_TXRXCOUPLE_5G_PWRUP		0x1a0
+#define R2057_AFE_VCM_CAL_MASTER_CORE0		0x1a1
+#define R2057_AFE_SET_VCM_I_CORE0		0x1a2
+#define R2057_AFE_SET_VCM_Q_CORE0		0x1a3
+#define R2057_AFE_STATUS_VCM_IQADC_CORE0	0x1a4
+#define R2057_AFE_STATUS_VCM_I_CORE0		0x1a5
+#define R2057_AFE_STATUS_VCM_Q_CORE0		0x1a6
+#define R2057_AFE_VCM_CAL_MASTER_CORE1		0x1a7
+#define R2057_AFE_SET_VCM_I_CORE1		0x1a8
+#define R2057_AFE_SET_VCM_Q_CORE1		0x1a9
+#define R2057_AFE_STATUS_VCM_IQADC_CORE1	0x1aa
+#define R2057_AFE_STATUS_VCM_I_CORE1		0x1ab
+#define R2057_AFE_STATUS_VCM_Q_CORE1		0x1ac
+
+#define R2057v7_DACBUF_VINCM_CORE0		0x1ad
+#define R2057v7_RCCAL_MASTER			0x1ae
+#define R2057v7_TR2G_CONFIG3_CORE0_NU		0x1af
+#define R2057v7_TR2G_CONFIG3_CORE1_NU		0x1b0
+#define R2057v7_LOGEN_PUS1			0x1b1
+#define R2057v7_OVR_REG5			0x1b2
+#define R2057v7_OVR_REG6			0x1b3
+#define R2057v7_OVR_REG7			0x1b4
+#define R2057v7_OVR_REG8			0x1b5
+#define R2057v7_OVR_REG9			0x1b6
+#define R2057v7_OVR_REG10			0x1b7
+#define R2057v7_OVR_REG11			0x1b8
+#define R2057v7_OVR_REG12			0x1b9
+#define R2057v7_OVR_REG13			0x1ba
+#define R2057v7_OVR_REG14			0x1bb
+#define R2057v7_OVR_REG15			0x1bc
+#define R2057v7_OVR_REG16			0x1bd
+#define R2057v7_OVR_REG1			0x1be
+#define R2057v7_OVR_REG18			0x1bf
+#define R2057v7_OVR_REG19			0x1c0
+#define R2057v7_OVR_REG20			0x1c1
+#define R2057v7_OVR_REG21			0x1c2
+#define R2057v7_OVR_REG2			0x1c3
+#define R2057v7_OVR_REG23			0x1c4
+#define R2057v7_OVR_REG24			0x1c5
+#define R2057v7_OVR_REG25			0x1c6
+#define R2057v7_OVR_REG26			0x1c7
+#define R2057v7_OVR_REG27			0x1c8
+#define R2057v7_OVR_REG28			0x1c9
+#define R2057v7_IQTEST_SEL_PU2			0x1ca
+
+#define R2057_VCM_MASK				0x7
+
+void r2057_upload_inittabs(struct b43_wldev *dev);
+
+#endif /* B43_RADIO_2057_H_ */
diff --git a/drivers/net/wireless/b43/tables_nphy.c b/drivers/net/wireless/b43/tables_nphy.c
index f0d8377429c..97d4e27bf36 100644
--- a/drivers/net/wireless/b43/tables_nphy.c
+++ b/drivers/net/wireless/b43/tables_nphy.c
@@ -2757,6 +2757,49 @@ const struct nphy_rf_control_override_rev3 tbl_rf_control_override_rev3[] = {
 	{ 0x00C0,  6, 0xE7, 0xF9, 0xEC, 0xFB }  /* field == 0x4000 (fls 15) */
 };
 
+/* field, val_addr_core0, val_addr_core1, val_mask, val_shift */
+static const struct nphy_rf_control_override_rev7
+			tbl_rf_control_override_rev7_over0[] = {
+	{ 0x0004, 0x07A, 0x07D, 0x0002, 1 },
+	{ 0x0008, 0x07A, 0x07D, 0x0004, 2 },
+	{ 0x0010, 0x07A, 0x07D, 0x0010, 4 },
+	{ 0x0020, 0x07A, 0x07D, 0x0020, 5 },
+	{ 0x0040, 0x07A, 0x07D, 0x0040, 6 },
+	{ 0x0080, 0x0F8, 0x0FA, 0x0080, 7 },
+	{ 0x0400, 0x0F8, 0x0FA, 0x0070, 4 },
+	{ 0x0800, 0x07B, 0x07E, 0xFFFF, 0 },
+	{ 0x1000, 0x07C, 0x07F, 0xFFFF, 0 },
+	{ 0x6000, 0x348, 0x349, 0xFFFF, 0 },
+	{ 0x2000, 0x348, 0x349, 0x000F, 0 },
+};
+
+/* field, val_addr_core0, val_addr_core1, val_mask, val_shift */
+static const struct nphy_rf_control_override_rev7
+			tbl_rf_control_override_rev7_over1[] = {
+	{ 0x0002, 0x340, 0x341, 0x0002, 1 },
+	{ 0x0008, 0x340, 0x341, 0x0008, 3 },
+	{ 0x0020, 0x340, 0x341, 0x0020, 5 },
+	{ 0x0010, 0x340, 0x341, 0x0010, 4 },
+	{ 0x0004, 0x340, 0x341, 0x0004, 2 },
+	{ 0x0080, 0x340, 0x341, 0x0700, 8 },
+	{ 0x0800, 0x340, 0x341, 0x4000, 14 },
+	{ 0x0400, 0x340, 0x341, 0x2000, 13 },
+	{ 0x0200, 0x340, 0x341, 0x0800, 12 },
+	{ 0x0100, 0x340, 0x341, 0x0100, 11 },
+	{ 0x0040, 0x340, 0x341, 0x0040, 6 },
+	{ 0x0001, 0x340, 0x341, 0x0001, 0 },
+};
+
+/* field, val_addr_core0, val_addr_core1, val_mask, val_shift */
+static const struct nphy_rf_control_override_rev7
+			tbl_rf_control_override_rev7_over2[] = {
+	{ 0x0008, 0x344, 0x345, 0x0008, 3 },
+	{ 0x0002, 0x344, 0x345, 0x0002, 1 },
+	{ 0x0001, 0x344, 0x345, 0x0001, 0 },
+	{ 0x0004, 0x344, 0x345, 0x0004, 2 },
+	{ 0x0010, 0x344, 0x345, 0x0010, 4 },
+};
+
 struct nphy_gain_ctl_workaround_entry nphy_gain_ctl_wa_phy6_radio11_ghz2 = {
 	{ 10, 14, 19, 27 },
 	{ -5, 6, 10, 15 },
@@ -3248,3 +3291,35 @@ struct nphy_gain_ctl_workaround_entry *b43_nphy_get_gain_ctl_workaround_ent(
 
 	return e;
 }
+
+const struct nphy_rf_control_override_rev7 *b43_nphy_get_rf_ctl_over_rev7(
+	struct b43_wldev *dev, u16 field, u8 override)
+{
+	const struct nphy_rf_control_override_rev7 *e;
+	u8 size, i;
+
+	switch (override) {
+	case 0:
+		e = tbl_rf_control_override_rev7_over0;
+		size = ARRAY_SIZE(tbl_rf_control_override_rev7_over0);
+		break;
+	case 1:
+		e = tbl_rf_control_override_rev7_over1;
+		size = ARRAY_SIZE(tbl_rf_control_override_rev7_over1);
+		break;
+	case 2:
+		e = tbl_rf_control_override_rev7_over2;
+		size = ARRAY_SIZE(tbl_rf_control_override_rev7_over2);
+		break;
+	default:
+		b43err(dev->wl, "Invalid override value %d\n", override);
+		return NULL;
+	}
+
+	for (i = 0; i < size; i++) {
+		if (e[i].field == field)
+			return &e[i];
+	}
+
+	return NULL;
+}
diff --git a/drivers/net/wireless/b43/tables_nphy.h b/drivers/net/wireless/b43/tables_nphy.h
index f348953c023..c600700ceed 100644
--- a/drivers/net/wireless/b43/tables_nphy.h
+++ b/drivers/net/wireless/b43/tables_nphy.h
@@ -35,6 +35,14 @@ struct nphy_rf_control_override_rev3 {
 	u8 val_addr1;
 };
 
+struct nphy_rf_control_override_rev7 {
+	u16 field;
+	u16 val_addr_core0;
+	u16 val_addr_core1;
+	u16 val_mask;
+	u8 val_shift;
+};
+
 struct nphy_gain_ctl_workaround_entry {
 	s8 lna1_gain[4];
 	s8 lna2_gain[4];
@@ -202,5 +210,7 @@ extern const struct nphy_rf_control_override_rev2
 	tbl_rf_control_override_rev2[];
 extern const struct nphy_rf_control_override_rev3
 	tbl_rf_control_override_rev3[];
+const struct nphy_rf_control_override_rev7 *b43_nphy_get_rf_ctl_over_rev7(
+	struct b43_wldev *dev, u16 field, u8 override);
 
 #endif /* B43_TABLES_NPHY_H_ */
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 8156135a059..18e208e3eca 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -1920,7 +1920,7 @@ static int b43legacy_gpio_init(struct b43legacy_wldev *dev)
 		return 0;
 	ssb_write32(gpiodev, B43legacy_GPIO_CONTROL,
 		    (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL)
-		     & mask) | set);
+		     & ~mask) | set);
 
 	return 0;
 }
@@ -2492,6 +2492,7 @@ static void b43legacy_tx_work(struct work_struct *work)
 }
 
 static void b43legacy_op_tx(struct ieee80211_hw *hw,
+			    struct ieee80211_tx_control *control,
 			    struct sk_buff *skb)
 {
 	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
@@ -3894,6 +3895,8 @@ static void b43legacy_remove(struct ssb_device *dev)
 	cancel_work_sync(&wl->firmware_load);
 
 	B43legacy_WARN_ON(!wl);
+	if (!wldev->fw.ucode)
+		return;			/* NULL if fw never loaded */
 	if (wl->current_dev == wldev)
 		ieee80211_unregister_hw(wl->hw);
 
diff --git a/drivers/net/wireless/brcm80211/Kconfig b/drivers/net/wireless/brcm80211/Kconfig
index b480088b3db..c9d811eb655 100644
--- a/drivers/net/wireless/brcm80211/Kconfig
+++ b/drivers/net/wireless/brcm80211/Kconfig
@@ -55,6 +55,14 @@ config BRCMFMAC_USB
 	  IEEE802.11n embedded FullMAC WLAN driver. Say Y if you want to
 	  use the driver for an USB wireless card.
 
+config BRCMISCAN
+	bool "Broadcom I-Scan (OBSOLETE)"
+	depends on BRCMFMAC
+	---help---
+	  This option enables the I-Scan method. By default fullmac uses the
+	  new E-Scan method which uses less memory in firmware and gives no
+	  limitation on the number of scan results.
+
 config BRCMDBG
 	bool "Broadcom driver debug functions"
 	depends on BRCMSMAC || BRCMFMAC
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 8e7e6928c93..3b2c4c20e7f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -185,7 +185,7 @@ brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
 	return err;
 }
 
-static int
+int
 brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
 			void *data, bool write)
 {
@@ -249,7 +249,9 @@ u8 brcmf_sdio_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
 	int retval;
 
 	brcmf_dbg(INFO, "addr:0x%08x\n", addr);
+	sdio_claim_host(sdiodev->func[1]);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false);
+	sdio_release_host(sdiodev->func[1]);
 	brcmf_dbg(INFO, "data:0x%02x\n", data);
 
 	if (ret)
@@ -264,7 +266,9 @@ u32 brcmf_sdio_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
 	int retval;
 
 	brcmf_dbg(INFO, "addr:0x%08x\n", addr);
+	sdio_claim_host(sdiodev->func[1]);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false);
+	sdio_release_host(sdiodev->func[1]);
 	brcmf_dbg(INFO, "data:0x%08x\n", data);
 
 	if (ret)
@@ -279,7 +283,9 @@ void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr,
 	int retval;
 
 	brcmf_dbg(INFO, "addr:0x%08x, data:0x%02x\n", addr, data);
+	sdio_claim_host(sdiodev->func[1]);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true);
+	sdio_release_host(sdiodev->func[1]);
 
 	if (ret)
 		*ret = retval;
@@ -291,7 +297,9 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
 	int retval;
 
 	brcmf_dbg(INFO, "addr:0x%08x, data:0x%08x\n", addr, data);
+	sdio_claim_host(sdiodev->func[1]);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true);
+	sdio_release_host(sdiodev->func[1]);
 
 	if (ret)
 		*ret = retval;
@@ -356,15 +364,20 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
 
+	sdio_claim_host(sdiodev->func[1]);
+
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr);
 	if (err)
-		return err;
+		goto done;
 
 	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
 	err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_READ,
 					 fn, addr, pkt);
 
+done:
+	sdio_release_host(sdiodev->func[1]);
+
 	return err;
 }
 
@@ -378,15 +391,20 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pktq->qlen);
 
+	sdio_claim_host(sdiodev->func[1]);
+
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr);
 	if (err)
-		return err;
+		goto done;
 
 	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
 	err = brcmf_sdioh_request_chain(sdiodev, incr_fix, SDIOH_READ, fn, addr,
 					pktq);
 
+done:
+	sdio_release_host(sdiodev->func[1]);
+
 	return err;
 }
 
@@ -428,10 +446,12 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (flags & SDIO_REQ_ASYNC)
 		return -ENOTSUPP;
 
+	sdio_claim_host(sdiodev->func[1]);
+
 	if (bar0 != sdiodev->sbwad) {
 		err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
 		if (err)
-			return err;
+			goto done;
 
 		sdiodev->sbwad = bar0;
 	}
@@ -443,8 +463,13 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (width == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
 
-	return brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn,
-					  addr, pkt);
+	err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn,
+					 addr, pkt);
+
+done:
+	sdio_release_host(sdiodev->func[1]);
+
+	return err;
 }
 
 int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, u32 addr,
@@ -485,8 +510,10 @@ int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn)
 	brcmf_dbg(TRACE, "Enter\n");
 
 	/* issue abort cmd52 command through F0 */
+	sdio_claim_host(sdiodev->func[1]);
 	brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, SDIO_FUNC_0,
 				 SDIO_CCCR_ABORT, &t_func);
+	sdio_release_host(sdiodev->func[1]);
 
 	brcmf_dbg(TRACE, "Exit\n");
 	return 0;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 49765d34b4e..c3247d5b3c2 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -42,6 +42,7 @@
 
 #define DMA_ALIGN_MASK	0x03
 
+#define SDIO_DEVICE_ID_BROADCOM_43241	0x4324
 #define SDIO_DEVICE_ID_BROADCOM_4329	0x4329
 #define SDIO_DEVICE_ID_BROADCOM_4330	0x4330
 #define SDIO_DEVICE_ID_BROADCOM_4334	0x4334
@@ -51,6 +52,7 @@
 
 /* devices we support, null terminated */
 static const struct sdio_device_id brcmf_sdmmc_ids[] = {
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43241)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
@@ -101,7 +103,6 @@ static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
 	if (regaddr == SDIO_CCCR_IOEx) {
 		sdfunc = sdiodev->func[2];
 		if (sdfunc) {
-			sdio_claim_host(sdfunc);
 			if (*byte & SDIO_FUNC_ENABLE_2) {
 				/* Enable Function 2 */
 				err_ret = sdio_enable_func(sdfunc);
@@ -117,7 +118,6 @@ static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
 						  "Disable F2 failed:%d\n",
 						  err_ret);
 			}
-			sdio_release_host(sdfunc);
 		}
 	} else if ((regaddr == SDIO_CCCR_ABORT) ||
 		   (regaddr == SDIO_CCCR_IENx)) {
@@ -126,17 +126,13 @@ static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
 		if (!sdfunc)
 			return -ENOMEM;
 		sdfunc->num = 0;
-		sdio_claim_host(sdfunc);
 		sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
-		sdio_release_host(sdfunc);
 		kfree(sdfunc);
 	} else if (regaddr < 0xF0) {
 		brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
 		err_ret = -EPERM;
 	} else {
-		sdio_claim_host(sdfunc);
 		sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
-		sdio_release_host(sdfunc);
 	}
 
 	return err_ret;
@@ -157,7 +153,6 @@ int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
 		/* handle F0 separately */
 		err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
 	} else {
-		sdio_claim_host(sdiodev->func[func]);
 		if (rw) /* CMD52 Write */
 			sdio_writeb(sdiodev->func[func], *byte, regaddr,
 				    &err_ret);
@@ -168,7 +163,6 @@ int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
 			*byte = sdio_readb(sdiodev->func[func], regaddr,
 					   &err_ret);
 		}
-		sdio_release_host(sdiodev->func[func]);
 	}
 
 	if (err_ret)
@@ -195,8 +189,6 @@ int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
 	if (brcmf_pm_resume_error(sdiodev))
 		return -EIO;
-	/* Claim host controller */
-	sdio_claim_host(sdiodev->func[func]);
 
 	if (rw) {		/* CMD52 Write */
 		if (nbytes == 4)
@@ -217,9 +209,6 @@ int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 			brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
 	}
 
-	/* Release host controller */
-	sdio_release_host(sdiodev->func[func]);
-
 	if (err_ret)
 		brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
 			  rw ? "write" : "read", err_ret);
@@ -273,9 +262,6 @@ brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 	if (brcmf_pm_resume_error(sdiodev))
 		return -EIO;
 
-	/* Claim host controller */
-	sdio_claim_host(sdiodev->func[func]);
-
 	skb_queue_walk(pktq, pkt) {
 		uint pkt_len = pkt->len;
 		pkt_len += 3;
@@ -298,9 +284,6 @@ brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 		SGCount++;
 	}
 
-	/* Release host controller */
-	sdio_release_host(sdiodev->func[func]);
-
 	brcmf_dbg(TRACE, "Exit\n");
 	return err_ret;
 }
@@ -326,9 +309,6 @@ int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 	if (brcmf_pm_resume_error(sdiodev))
 		return -EIO;
 
-	/* Claim host controller */
-	sdio_claim_host(sdiodev->func[func]);
-
 	pkt_len += 3;
 	pkt_len &= (uint)~3;
 
@@ -342,9 +322,6 @@ int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 			  write ? "TX" : "RX", pkt, addr, pkt_len);
 	}
 
-	/* Release host controller */
-	sdio_release_host(sdiodev->func[func]);
-
 	return status;
 }
 
@@ -638,6 +615,8 @@ static int brcmf_sdio_pd_probe(struct platform_device *pdev)
 
 		oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
 				       GFP_KERNEL);
+		if (!oobirq_entry)
+			return -ENOMEM;
 		oobirq_entry->irq = res->start;
 		oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
 		list_add_tail(&oobirq_entry->list, &oobirq_lh);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
index a11fe54f595..17e7ae73e00 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
@@ -27,6 +27,7 @@
  * IO codes that are interpreted by dongle firmware
  ******************************************************************************/
 #define BRCMF_C_UP				2
+#define BRCMF_C_DOWN				3
 #define BRCMF_C_SET_PROMISC			10
 #define BRCMF_C_GET_RATE			12
 #define BRCMF_C_GET_INFRA			19
@@ -50,7 +51,10 @@
 #define BRCMF_C_REASSOC				53
 #define BRCMF_C_SET_ROAM_TRIGGER		55
 #define BRCMF_C_SET_ROAM_DELTA			57
+#define BRCMF_C_GET_BCNPRD			75
+#define BRCMF_C_SET_BCNPRD			76
 #define BRCMF_C_GET_DTIMPRD			77
+#define BRCMF_C_SET_DTIMPRD			78
 #define BRCMF_C_SET_COUNTRY			84
 #define BRCMF_C_GET_PM				85
 #define BRCMF_C_SET_PM				86
@@ -130,6 +134,13 @@
 #define BRCMF_EVENT_MSG_FLUSHTXQ	0x02
 #define BRCMF_EVENT_MSG_GROUP		0x04
 
+#define BRCMF_ESCAN_REQ_VERSION 1
+
+#define WLC_BSS_RSSI_ON_CHANNEL		0x0002
+
+#define BRCMF_MAXRATES_IN_SET		16	/* max # of rates in rateset */
+#define BRCMF_STA_ASSOC			0x10		/* Associated */
+
 struct brcmf_event_msg {
 	__be16 version;
 	__be16 flags;
@@ -140,6 +151,8 @@ struct brcmf_event_msg {
 	__be32 datalen;
 	u8 addr[ETH_ALEN];
 	char ifname[IFNAMSIZ];
+	u8 ifidx;
+	u8 bsscfgidx;
 } __packed;
 
 struct brcm_ethhdr {
@@ -454,6 +467,24 @@ struct brcmf_scan_results_le {
 	__le32 count;
 };
 
+struct brcmf_escan_params_le {
+	__le32 version;
+	__le16 action;
+	__le16 sync_id;
+	struct brcmf_scan_params_le params_le;
+};
+
+struct brcmf_escan_result_le {
+	__le32 buflen;
+	__le32 version;
+	__le16 sync_id;
+	__le16 bss_count;
+	struct brcmf_bss_info_le bss_info_le;
+};
+
+#define WL_ESCAN_RESULTS_FIXED_SIZE (sizeof(struct brcmf_escan_result_le) - \
+	sizeof(struct brcmf_bss_info_le))
+
 /* used for association with a specific BSSID and chanspec list */
 struct brcmf_assoc_params_le {
 	/* 00:00:00:00:00:00: broadcast scan */
@@ -542,6 +573,28 @@ struct brcmf_channel_info_le {
 	__le32 scan_channel;
 };
 
+struct brcmf_sta_info_le {
+	__le16	ver;		/* version of this struct */
+	__le16	len;		/* length in bytes of this structure */
+	__le16	cap;		/* sta's advertised capabilities */
+	__le32	flags;		/* flags defined below */
+	__le32	idle;		/* time since data pkt rx'd from sta */
+	u8	ea[ETH_ALEN];		/* Station address */
+	__le32	count;			/* # rates in this set */
+	u8	rates[BRCMF_MAXRATES_IN_SET];	/* rates in 500kbps units */
+						/* w/hi bit set if basic */
+	__le32	in;		/* seconds elapsed since associated */
+	__le32	listen_interval_inms; /* Min Listen interval in ms for STA */
+	__le32	tx_pkts;	/* # of packets transmitted */
+	__le32	tx_failures;	/* # of packets failed */
+	__le32	rx_ucast_pkts;	/* # of unicast packets received */
+	__le32	rx_mcast_pkts;	/* # of multicast packets received */
+	__le32	tx_rate;	/* Rate of last successful tx frame */
+	__le32	rx_rate;	/* Rate of last successful rx frame */
+	__le32	rx_decrypt_succeeds;	/* # of packet decrypted successfully */
+	__le32	rx_decrypt_failures;	/* # of packet decrypted failed */
+};
+
 /* Bus independent dongle command */
 struct brcmf_dcmd {
 	uint cmd;		/* common dongle cmd definition */
@@ -561,7 +614,7 @@ struct brcmf_pub {
 	/* Linkage ponters */
 	struct brcmf_bus *bus_if;
 	struct brcmf_proto *prot;
-	struct brcmf_cfg80211_dev *config;
+	struct brcmf_cfg80211_info *config;
 	struct device *dev;		/* fullmac dongle device pointer */
 
 	/* Internal brcmf items */
@@ -634,10 +687,13 @@ extern const struct bcmevent_name bcmevent_names[];
 
 extern uint brcmf_c_mkiovar(char *name, char *data, uint datalen,
 			  char *buf, uint len);
+extern uint brcmf_c_mkiovar_bsscfg(char *name, char *data, uint datalen,
+				   char *buf, uint buflen, s32 bssidx);
 
 extern int brcmf_netdev_wait_pend8021x(struct net_device *ndev);
 
 extern s32 brcmf_exec_dcmd(struct net_device *dev, u32 cmd, void *arg, u32 len);
+extern int brcmf_netlink_dcmd(struct net_device *ndev, struct brcmf_dcmd *dcmd);
 
 /* Return pointer to interface name */
 extern char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
@@ -657,10 +713,6 @@ extern int brcmf_c_host_event(struct brcmf_pub *drvr, int *idx,
 
 extern void brcmf_del_if(struct brcmf_pub *drvr, int ifidx);
 
-/* Send packet to dongle via data channel */
-extern int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx,\
-			 struct sk_buff *pkt);
-
 extern void brcmf_c_pktfilter_offload_set(struct brcmf_pub *drvr, char *arg);
 extern void brcmf_c_pktfilter_offload_enable(struct brcmf_pub *drvr, char *arg,
 					     int enable, int master_mode);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
index 537f499cc5d..9b8ee19ea55 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
@@ -103,7 +103,7 @@ extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
 extern void brcmf_detach(struct device *dev);
 
 /* Indication from bus module to change flow-control state */
-extern void brcmf_txflowcontrol(struct device *dev, int ifidx, bool on);
+extern void brcmf_txflowblock(struct device *dev, bool state);
 
 /* Notify tx completion */
 extern void brcmf_txcomplete(struct device *dev, struct sk_buff *txp,
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
index 2621dd3d7dc..15c5db5752d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
@@ -80,12 +80,60 @@ brcmf_c_mkiovar(char *name, char *data, uint datalen, char *buf, uint buflen)
 	strncpy(buf, name, buflen);
 
 	/* append data onto the end of the name string */
-	memcpy(&buf[len], data, datalen);
-	len += datalen;
+	if (data && datalen) {
+		memcpy(&buf[len], data, datalen);
+		len += datalen;
+	}
 
 	return len;
 }
 
+uint
+brcmf_c_mkiovar_bsscfg(char *name, char *data, uint datalen,
+		       char *buf, uint buflen, s32 bssidx)
+{
+	const s8 *prefix = "bsscfg:";
+	s8 *p;
+	u32 prefixlen;
+	u32 namelen;
+	u32 iolen;
+	__le32 bssidx_le;
+
+	if (bssidx == 0)
+		return brcmf_c_mkiovar(name, data, datalen, buf, buflen);
+
+	prefixlen = (u32) strlen(prefix); /* lengh of bsscfg prefix */
+	namelen = (u32) strlen(name) + 1; /* lengh of iovar  name + null */
+	iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
+
+	if (buflen < 0 || iolen > (u32)buflen) {
+		brcmf_dbg(ERROR, "buffer is too short\n");
+		return 0;
+	}
+
+	p = buf;
+
+	/* copy prefix, no null */
+	memcpy(p, prefix, prefixlen);
+	p += prefixlen;
+
+	/* copy iovar name including null */
+	memcpy(p, name, namelen);
+	p += namelen;
+
+	/* bss config index as first data */
+	bssidx_le = cpu_to_le32(bssidx);
+	memcpy(p, &bssidx_le, sizeof(bssidx_le));
+	p += sizeof(bssidx_le);
+
+	/* parameter buffer follows */
+	if (datalen)
+		memcpy(p, data, datalen);
+
+	return iolen;
+
+}
+
 bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
 		      struct sk_buff *pkt, int prec)
 {
@@ -205,7 +253,8 @@ brcmf_c_show_host_event(struct brcmf_event_msg *event, void *event_data)
 		BRCMF_E_ACTION_FRAME_COMPLETE, "ACTION FRAME TX COMPLETE"}, {
 		BRCMF_E_IF, "IF"}, {
 		BRCMF_E_RSSI, "RSSI"}, {
-		BRCMF_E_PFN_SCAN_COMPLETE, "SCAN_COMPLETE"}
+		BRCMF_E_PFN_SCAN_COMPLETE, "SCAN_COMPLETE"}, {
+		BRCMF_E_ESCAN_RESULT, "ESCAN_RESULT"}
 	};
 	uint event_type, flags, auth_type, datalen;
 	static u32 seqnum_prev;
@@ -350,6 +399,11 @@ brcmf_c_show_host_event(struct brcmf_event_msg *event, void *event_data)
 		brcmf_dbg(EVENT, "MACEVENT: %s\n", event_name);
 		break;
 
+	case BRCMF_E_ESCAN_RESULT:
+		brcmf_dbg(EVENT, "MACEVENT: %s\n", event_name);
+		datalen = 0;
+		break;
+
 	case BRCMF_E_PFN_NET_FOUND:
 	case BRCMF_E_PFN_NET_LOST:
 	case BRCMF_E_PFN_SCAN_COMPLETE:
@@ -425,13 +479,7 @@ brcmf_c_show_host_event(struct brcmf_event_msg *event, void *event_data)
 	}
 
 	/* show any appended data */
-	if (datalen) {
-		buf = (unsigned char *) event_data;
-		brcmf_dbg(EVENT, " data (%d) : ", datalen);
-		for (i = 0; i < datalen; i++)
-			brcmf_dbg(EVENT, " 0x%02x ", *buf++);
-		brcmf_dbg(EVENT, "\n");
-	}
+	brcmf_dbg_hex_dump(datalen, event_data, datalen, "Received data");
 }
 #endif				/* DEBUG */
 
@@ -522,8 +570,9 @@ brcmf_c_host_event(struct brcmf_pub *drvr, int *ifidx, void *pktdata,
 	}
 
 #ifdef DEBUG
-	brcmf_c_show_host_event(event, event_data);
-#endif				/* DEBUG */
+	if (BRCMF_EVENT_ON())
+		brcmf_c_show_host_event(event, event_data);
+#endif /* DEBUG */
 
 	return 0;
 }
@@ -764,8 +813,11 @@ static void brcmf_c_arp_offload_set(struct brcmf_pub *drvr, int arp_mode)
 {
 	char iovbuf[32];
 	int retcode;
+	__le32 arp_mode_le;
 
-	brcmf_c_mkiovar("arp_ol", (char *)&arp_mode, 4, iovbuf, sizeof(iovbuf));
+	arp_mode_le = cpu_to_le32(arp_mode);
+	brcmf_c_mkiovar("arp_ol", (char *)&arp_mode_le, 4, iovbuf,
+			sizeof(iovbuf));
 	retcode = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR,
 				   iovbuf, sizeof(iovbuf));
 	retcode = retcode >= 0 ? 0 : retcode;
@@ -781,8 +833,11 @@ static void brcmf_c_arp_offload_enable(struct brcmf_pub *drvr, int arp_enable)
 {
 	char iovbuf[32];
 	int retcode;
+	__le32 arp_enable_le;
+
+	arp_enable_le = cpu_to_le32(arp_enable);
 
-	brcmf_c_mkiovar("arpoe", (char *)&arp_enable, 4,
+	brcmf_c_mkiovar("arpoe", (char *)&arp_enable_le, 4,
 			iovbuf, sizeof(iovbuf));
 	retcode = brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR,
 				   iovbuf, sizeof(iovbuf));
@@ -800,10 +855,10 @@ int brcmf_c_preinit_dcmds(struct brcmf_pub *drvr)
 	char iovbuf[BRCMF_EVENTING_MASK_LEN + 12];	/*  Room for
 				 "event_msgs" + '\0' + bitvec  */
 	char buf[128], *ptr;
-	u32 roaming = 1;
-	uint bcn_timeout = 3;
-	int scan_assoc_time = 40;
-	int scan_unassoc_time = 40;
+	__le32 roaming_le = cpu_to_le32(1);
+	__le32 bcn_timeout_le = cpu_to_le32(3);
+	__le32 scan_assoc_time_le = cpu_to_le32(40);
+	__le32 scan_unassoc_time_le = cpu_to_le32(40);
 	int i;
 	struct brcmf_bus_dcmd *cmdlst;
 	struct list_head *cur, *q;
@@ -829,14 +884,14 @@ int brcmf_c_preinit_dcmds(struct brcmf_pub *drvr)
 
 	/* Setup timeout if Beacons are lost and roam is off to report
 		 link down */
-	brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf,
+	brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_timeout_le, 4, iovbuf,
 		    sizeof(iovbuf));
 	brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 				  sizeof(iovbuf));
 
 	/* Enable/Disable build-in roaming to allowed ext supplicant to take
 		 of romaing */
-	brcmf_c_mkiovar("roam_off", (char *)&roaming, 4,
+	brcmf_c_mkiovar("roam_off", (char *)&roaming_le, 4,
 		      iovbuf, sizeof(iovbuf));
 	brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_VAR, iovbuf,
 				  sizeof(iovbuf));
@@ -848,9 +903,9 @@ int brcmf_c_preinit_dcmds(struct brcmf_pub *drvr)
 				  sizeof(iovbuf));
 
 	brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_SCAN_CHANNEL_TIME,
-			 (char *)&scan_assoc_time, sizeof(scan_assoc_time));
+		 (char *)&scan_assoc_time_le, sizeof(scan_assoc_time_le));
 	brcmf_proto_cdc_set_dcmd(drvr, 0, BRCMF_C_SET_SCAN_UNASSOC_TIME,
-			 (char *)&scan_unassoc_time, sizeof(scan_unassoc_time));
+		 (char *)&scan_unassoc_time_le, sizeof(scan_unassoc_time_le));
 
 	/* Set and enable ARP offload feature */
 	brcmf_c_arp_offload_set(drvr, BRCMF_ARPOL_MODE);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
index b784920532d..fb508c2256d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
@@ -55,6 +55,7 @@ do {									\
 #define BRCMF_HDRS_ON()		(brcmf_msg_level & BRCMF_HDRS_VAL)
 #define BRCMF_BYTES_ON()	(brcmf_msg_level & BRCMF_BYTES_VAL)
 #define BRCMF_GLOM_ON()		(brcmf_msg_level & BRCMF_GLOM_VAL)
+#define BRCMF_EVENT_ON()	(brcmf_msg_level & BRCMF_EVENT_VAL)
 
 #else	/* (defined DEBUG) || (defined DEBUG) */
 
@@ -65,6 +66,7 @@ do {									\
 #define BRCMF_HDRS_ON()		0
 #define BRCMF_BYTES_ON()	0
 #define BRCMF_GLOM_ON()		0
+#define BRCMF_EVENT_ON()	0
 
 #endif				/* defined(DEBUG) */
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 9ab24528f9b..d7c76ce9d8c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -272,30 +272,6 @@ static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
 	schedule_work(&drvr->multicast_work);
 }
 
-int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx, struct sk_buff *pktbuf)
-{
-	/* Reject if down */
-	if (!drvr->bus_if->drvr_up || (drvr->bus_if->state == BRCMF_BUS_DOWN))
-		return -ENODEV;
-
-	/* Update multicast statistic */
-	if (pktbuf->len >= ETH_ALEN) {
-		u8 *pktdata = (u8 *) (pktbuf->data);
-		struct ethhdr *eh = (struct ethhdr *)pktdata;
-
-		if (is_multicast_ether_addr(eh->h_dest))
-			drvr->tx_multicast++;
-		if (ntohs(eh->h_proto) == ETH_P_PAE)
-			atomic_inc(&drvr->pend_8021x_cnt);
-	}
-
-	/* If the protocol uses a data header, apply it */
-	brcmf_proto_hdrpush(drvr, ifidx, pktbuf);
-
-	/* Use bus module to send data frame */
-	return drvr->bus_if->brcmf_bus_txdata(drvr->dev, pktbuf);
-}
-
 static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	int ret;
@@ -338,7 +314,22 @@ static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		}
 	}
 
-	ret = brcmf_sendpkt(drvr, ifp->idx, skb);
+	/* Update multicast statistic */
+	if (skb->len >= ETH_ALEN) {
+		u8 *pktdata = (u8 *)(skb->data);
+		struct ethhdr *eh = (struct ethhdr *)pktdata;
+
+		if (is_multicast_ether_addr(eh->h_dest))
+			drvr->tx_multicast++;
+		if (ntohs(eh->h_proto) == ETH_P_PAE)
+			atomic_inc(&drvr->pend_8021x_cnt);
+	}
+
+	/* If the protocol uses a data header, apply it */
+	brcmf_proto_hdrpush(drvr, ifp->idx, skb);
+
+	/* Use bus module to send data frame */
+	ret =  drvr->bus_if->brcmf_bus_txdata(drvr->dev, skb);
 
 done:
 	if (ret)
@@ -350,19 +341,23 @@ done:
 	return 0;
 }
 
-void brcmf_txflowcontrol(struct device *dev, int ifidx, bool state)
+void brcmf_txflowblock(struct device *dev, bool state)
 {
 	struct net_device *ndev;
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_pub *drvr = bus_if->drvr;
+	int i;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
-	ndev = drvr->iflist[ifidx]->ndev;
-	if (state == ON)
-		netif_stop_queue(ndev);
-	else
-		netif_wake_queue(ndev);
+	for (i = 0; i < BRCMF_MAX_IFS; i++)
+		if (drvr->iflist[i]) {
+			ndev = drvr->iflist[i]->ndev;
+			if (state)
+				netif_stop_queue(ndev);
+			else
+				netif_wake_queue(ndev);
+		}
 }
 
 static int brcmf_host_event(struct brcmf_pub *drvr, int *ifidx,
@@ -775,6 +770,14 @@ done:
 	return err;
 }
 
+int brcmf_netlink_dcmd(struct net_device *ndev, struct brcmf_dcmd *dcmd)
+{
+	brcmf_dbg(TRACE, "enter: cmd %x buf %p len %d\n",
+		  dcmd->cmd, dcmd->buf, dcmd->len);
+
+	return brcmf_exec_dcmd(ndev, dcmd->cmd, dcmd->buf, dcmd->len);
+}
+
 static int brcmf_netdev_stop(struct net_device *ndev)
 {
 	struct brcmf_if *ifp = netdev_priv(ndev);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 472f2ef5c65..3564686add9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -482,6 +482,15 @@ struct sdpcm_shared_le {
 	__le32 brpt_addr;
 };
 
+/* SDIO read frame info */
+struct brcmf_sdio_read {
+	u8 seq_num;
+	u8 channel;
+	u16 len;
+	u16 len_left;
+	u16 len_nxtfrm;
+	u8 dat_offset;
+};
 
 /* misc chip info needed by some of the routines */
 /* Private data for SDIO bus interaction */
@@ -494,9 +503,8 @@ struct brcmf_sdio {
 	u32 ramsize;		/* Size of RAM in SOCRAM (bytes) */
 
 	u32 hostintmask;	/* Copy of Host Interrupt Mask */
-	u32 intstatus;	/* Intstatus bits (events) pending */
-	bool dpc_sched;		/* Indicates DPC schedule (intrpt rcvd) */
-	bool fcstate;		/* State of dongle flow-control */
+	atomic_t intstatus;	/* Intstatus bits (events) pending */
+	atomic_t fcstate;	/* State of dongle flow-control */
 
 	uint blocksize;		/* Block size of SDIO transfers */
 	uint roundup;		/* Max roundup limit */
@@ -508,9 +516,11 @@ struct brcmf_sdio {
 
 	u8 hdrbuf[MAX_HDR_READ + BRCMF_SDALIGN];
 	u8 *rxhdr;		/* Header of current rx frame (in hdrbuf) */
-	u16 nextlen;		/* Next Read Len from last header */
 	u8 rx_seq;		/* Receive sequence number (expected) */
+	struct brcmf_sdio_read cur_read;
+				/* info of current read frame */
 	bool rxskip;		/* Skip receive (awaiting NAK ACK) */
+	bool rxpending;		/* Data frame pending in dongle */
 
 	uint rxbound;		/* Rx frames to read before resched */
 	uint txbound;		/* Tx frames to send before resched */
@@ -531,7 +541,7 @@ struct brcmf_sdio {
 
 	bool intr;		/* Use interrupts */
 	bool poll;		/* Use polling */
-	bool ipend;		/* Device interrupt is pending */
+	atomic_t ipend;		/* Device interrupt is pending */
 	uint spurious;		/* Count of spurious interrupts */
 	uint pollrate;		/* Ticks between device polls */
 	uint polltick;		/* Tick counter */
@@ -549,12 +559,9 @@ struct brcmf_sdio {
 	s32 idleclock;	/* How to set bus driver when idle */
 	s32 sd_rxchain;
 	bool use_rxchain;	/* If brcmf should use PKT chains */
-	bool sleeping;		/* Is SDIO bus sleeping? */
 	bool rxflow_mode;	/* Rx flow control mode */
 	bool rxflow;		/* Is rx flow control on */
 	bool alp_only;		/* Don't use HT clock (ALP only) */
-/* Field to decide if rx of control frames happen in rxbuf or lb-pool */
-	bool usebufpool;
 
 	u8 *ctrl_frame_buf;
 	u32 ctrl_frame_len;
@@ -570,8 +577,8 @@ struct brcmf_sdio {
 	bool wd_timer_valid;
 	uint save_ms;
 
-	struct task_struct *dpc_tsk;
-	struct completion dpc_wait;
+	struct workqueue_struct *brcmf_wq;
+	struct work_struct datawork;
 	struct list_head dpc_tsklst;
 	spinlock_t dpc_tl_lock;
 
@@ -657,15 +664,6 @@ w_sdreg32(struct brcmf_sdio *bus, u32 regval, u32 reg_offset)
 
 #define HOSTINTMASK		(I_HMB_SW_MASK | I_CHIPACTIVE)
 
-/* Packet free applicable unconditionally for sdio and sdspi.
- * Conditional if bufpool was present for gspi bus.
- */
-static void brcmf_sdbrcm_pktfree2(struct brcmf_sdio *bus, struct sk_buff *pkt)
-{
-	if (bus->usebufpool)
-		brcmu_pkt_buf_free_skb(pkt);
-}
-
 /* Turn backplane clock on or off */
 static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
 {
@@ -853,81 +851,6 @@ static int brcmf_sdbrcm_clkctl(struct brcmf_sdio *bus, uint target, bool pendok)
 	return 0;
 }
 
-static int brcmf_sdbrcm_bussleep(struct brcmf_sdio *bus, bool sleep)
-{
-	int ret;
-
-	brcmf_dbg(INFO, "request %s (currently %s)\n",
-		  sleep ? "SLEEP" : "WAKE",
-		  bus->sleeping ? "SLEEP" : "WAKE");
-
-	/* Done if we're already in the requested state */
-	if (sleep == bus->sleeping)
-		return 0;
-
-	/* Going to sleep: set the alarm and turn off the lights... */
-	if (sleep) {
-		/* Don't sleep if something is pending */
-		if (bus->dpc_sched || bus->rxskip || pktq_len(&bus->txq))
-			return -EBUSY;
-
-		/* Make sure the controller has the bus up */
-		brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
-
-		/* Tell device to start using OOB wakeup */
-		ret = w_sdreg32(bus, SMB_USE_OOB,
-				offsetof(struct sdpcmd_regs, tosbmailbox));
-		if (ret != 0)
-			brcmf_dbg(ERROR, "CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n");
-
-		/* Turn off our contribution to the HT clock request */
-		brcmf_sdbrcm_clkctl(bus, CLK_SDONLY, false);
-
-		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
-				 SBSDIO_FORCE_HW_CLKREQ_OFF, NULL);
-
-		/* Isolate the bus */
-		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_DEVICE_CTL,
-				 SBSDIO_DEVCTL_PADS_ISO, NULL);
-
-		/* Change state */
-		bus->sleeping = true;
-
-	} else {
-		/* Waking up: bus power up is ok, set local state */
-
-		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
-				 0, NULL);
-
-		/* Make sure the controller has the bus up */
-		brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
-
-		/* Send misc interrupt to indicate OOB not needed */
-		ret = w_sdreg32(bus, 0,
-				offsetof(struct sdpcmd_regs, tosbmailboxdata));
-		if (ret == 0)
-			ret = w_sdreg32(bus, SMB_DEV_INT,
-				offsetof(struct sdpcmd_regs, tosbmailbox));
-
-		if (ret != 0)
-			brcmf_dbg(ERROR, "CANNOT SIGNAL CHIP TO CLEAR OOB!!\n");
-
-		/* Make sure we have SD bus access */
-		brcmf_sdbrcm_clkctl(bus, CLK_SDONLY, false);
-
-		/* Change state */
-		bus->sleeping = false;
-	}
-
-	return 0;
-}
-
-static void bus_wake(struct brcmf_sdio *bus)
-{
-	if (bus->sleeping)
-		brcmf_sdbrcm_bussleep(bus, false);
-}
-
 static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
 {
 	u32 intstatus = 0;
@@ -1056,7 +979,7 @@ static void brcmf_sdbrcm_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
 	}
 
 	/* Clear partial in any case */
-	bus->nextlen = 0;
+	bus->cur_read.len = 0;
 
 	/* If we can't reach the device, signal failure */
 	if (err)
@@ -1108,6 +1031,96 @@ static void brcmf_sdbrcm_free_glom(struct brcmf_sdio *bus)
 	}
 }
 
+static bool brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header,
+				struct brcmf_sdio_read *rd)
+{
+	u16 len, checksum;
+	u8 rx_seq, fc, tx_seq_max;
+
+	/*
+	 * 4 bytes hardware header (frame tag)
+	 * Byte 0~1: Frame length
+	 * Byte 2~3: Checksum, bit-wise inverse of frame length
+	 */
+	len = get_unaligned_le16(header);
+	checksum = get_unaligned_le16(header + sizeof(u16));
+	/* All zero means no more to read */
+	if (!(len | checksum)) {
+		bus->rxpending = false;
+		return false;
+	}
+	if ((u16)(~(len ^ checksum))) {
+		brcmf_dbg(ERROR, "HW header checksum error\n");
+		bus->sdcnt.rx_badhdr++;
+		brcmf_sdbrcm_rxfail(bus, false, false);
+		return false;
+	}
+	if (len < SDPCM_HDRLEN) {
+		brcmf_dbg(ERROR, "HW header length error\n");
+		return false;
+	}
+	rd->len = len;
+
+	/*
+	 * 8 bytes hardware header
+	 * Byte 0: Rx sequence number
+	 * Byte 1: 4 MSB Channel number, 4 LSB arbitrary flag
+	 * Byte 2: Length of next data frame
+	 * Byte 3: Data offset
+	 * Byte 4: Flow control bits
+	 * Byte 5: Maximum Sequence number allow for Tx
+	 * Byte 6~7: Reserved
+	 */
+	rx_seq = SDPCM_PACKET_SEQUENCE(&header[SDPCM_FRAMETAG_LEN]);
+	rd->channel = SDPCM_PACKET_CHANNEL(&header[SDPCM_FRAMETAG_LEN]);
+	if (len > MAX_RX_DATASZ && rd->channel != SDPCM_CONTROL_CHANNEL) {
+		brcmf_dbg(ERROR, "HW header length too long\n");
+		bus->sdiodev->bus_if->dstats.rx_errors++;
+		bus->sdcnt.rx_toolong++;
+		brcmf_sdbrcm_rxfail(bus, false, false);
+		rd->len = 0;
+		return false;
+	}
+	rd->dat_offset = SDPCM_DOFFSET_VALUE(&header[SDPCM_FRAMETAG_LEN]);
+	if (rd->dat_offset < SDPCM_HDRLEN || rd->dat_offset > rd->len) {
+		brcmf_dbg(ERROR, "seq %d: bad data offset\n", rx_seq);
+		bus->sdcnt.rx_badhdr++;
+		brcmf_sdbrcm_rxfail(bus, false, false);
+		rd->len = 0;
+		return false;
+	}
+	if (rd->seq_num != rx_seq) {
+		brcmf_dbg(ERROR, "seq %d: sequence number error, expect %d\n",
+			  rx_seq, rd->seq_num);
+		bus->sdcnt.rx_badseq++;
+		rd->seq_num = rx_seq;
+	}
+	rd->len_nxtfrm = header[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
+	if (rd->len_nxtfrm << 4 > MAX_RX_DATASZ) {
+		/* only warm for NON glom packet */
+		if (rd->channel != SDPCM_GLOM_CHANNEL)
+			brcmf_dbg(ERROR, "seq %d: next length error\n", rx_seq);
+		rd->len_nxtfrm = 0;
+	}
+	fc = SDPCM_FCMASK_VALUE(&header[SDPCM_FRAMETAG_LEN]);
+	if (bus->flowcontrol != fc) {
+		if (~bus->flowcontrol & fc)
+			bus->sdcnt.fc_xoff++;
+		if (bus->flowcontrol & ~fc)
+			bus->sdcnt.fc_xon++;
+		bus->sdcnt.fc_rcvd++;
+		bus->flowcontrol = fc;
+	}
+	tx_seq_max = SDPCM_WINDOW_VALUE(&header[SDPCM_FRAMETAG_LEN]);
+	if ((u8)(tx_seq_max - bus->tx_seq) > 0x40) {
+		brcmf_dbg(ERROR, "seq %d: max tx seq number error\n", rx_seq);
+		tx_seq_max = bus->tx_seq + 2;
+	}
+	bus->tx_max = tx_seq_max;
+
+	return true;
+}
+
 static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 {
 	u16 dlen, totlen;
@@ -1122,6 +1135,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 
 	int ifidx = 0;
 	bool usechain = bus->use_rxchain;
+	u16 next_len;
 
 	/* If packets, issue read(s) and send up packet chain */
 	/* Return sequence numbers consumed? */
@@ -1185,10 +1199,10 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 		if (pnext) {
 			brcmf_dbg(GLOM, "allocated %d-byte packet chain for %d subframes\n",
 				  totlen, num);
-			if (BRCMF_GLOM_ON() && bus->nextlen &&
-			    totlen != bus->nextlen) {
+			if (BRCMF_GLOM_ON() && bus->cur_read.len &&
+			    totlen != bus->cur_read.len) {
 				brcmf_dbg(GLOM, "glomdesc mismatch: nextlen %d glomdesc %d rxseq %d\n",
-					  bus->nextlen, totlen, rxseq);
+					  bus->cur_read.len, totlen, rxseq);
 			}
 			pfirst = pnext = NULL;
 		} else {
@@ -1199,7 +1213,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 		/* Done with descriptor packet */
 		brcmu_pkt_buf_free_skb(bus->glomd);
 		bus->glomd = NULL;
-		bus->nextlen = 0;
+		bus->cur_read.len = 0;
 	}
 
 	/* Ok -- either we just generated a packet chain,
@@ -1272,12 +1286,13 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 
 		chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
 		seq = SDPCM_PACKET_SEQUENCE(&dptr[SDPCM_FRAMETAG_LEN]);
-		bus->nextlen = dptr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
-		if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
+		next_len = dptr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
+		if ((next_len << 4) > MAX_RX_DATASZ) {
 			brcmf_dbg(INFO, "nextlen too large (%d) seq %d\n",
-				  bus->nextlen, seq);
-			bus->nextlen = 0;
+				  next_len, seq);
+			next_len = 0;
 		}
+		bus->cur_read.len = next_len << 4;
 		doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
 		txmax = SDPCM_WINDOW_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
 
@@ -1378,7 +1393,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 				bus->sdcnt.rxglomfail++;
 				brcmf_sdbrcm_free_glom(bus);
 			}
-			bus->nextlen = 0;
+			bus->cur_read.len = 0;
 			return 0;
 		}
 
@@ -1573,422 +1588,166 @@ static void brcmf_pad(struct brcmf_sdio *bus, u16 *pad, u16 *rdlen)
 	}
 }
 
-static void
-brcmf_alloc_pkt_and_read(struct brcmf_sdio *bus, u16 rdlen,
-			 struct sk_buff **pkt, u8 **rxbuf)
+static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 {
-	int sdret;		/* Return code from calls */
-
-	*pkt = brcmu_pkt_buf_get_skb(rdlen + BRCMF_SDALIGN);
-	if (*pkt == NULL)
-		return;
-
-	pkt_align(*pkt, rdlen, BRCMF_SDALIGN);
-	*rxbuf = (u8 *) ((*pkt)->data);
-	/* Read the entire frame */
-	sdret = brcmf_sdcard_recv_pkt(bus->sdiodev, bus->sdiodev->sbwad,
-				      SDIO_FUNC_2, F2SYNC, *pkt);
-	bus->sdcnt.f2rxdata++;
-
-	if (sdret < 0) {
-		brcmf_dbg(ERROR, "(nextlen): read %d bytes failed: %d\n",
-			  rdlen, sdret);
-		brcmu_pkt_buf_free_skb(*pkt);
-		bus->sdiodev->bus_if->dstats.rx_errors++;
-		/* Force retry w/normal header read.
-		 * Don't attempt NAK for
-		 * gSPI
-		 */
-		brcmf_sdbrcm_rxfail(bus, true, true);
-		*pkt = NULL;
-	}
-}
-
-/* Checks the header */
-static int
-brcmf_check_rxbuf(struct brcmf_sdio *bus, struct sk_buff *pkt, u8 *rxbuf,
-		  u8 rxseq, u16 nextlen, u16 *len)
-{
-	u16 check;
-	bool len_consistent;	/* Result of comparing readahead len and
-				   len from hw-hdr */
-
-	memcpy(bus->rxhdr, rxbuf, SDPCM_HDRLEN);
-
-	/* Extract hardware header fields */
-	*len = get_unaligned_le16(bus->rxhdr);
-	check = get_unaligned_le16(bus->rxhdr + sizeof(u16));
-
-	/* All zeros means readahead info was bad */
-	if (!(*len | check)) {
-		brcmf_dbg(INFO, "(nextlen): read zeros in HW header???\n");
-		goto fail;
-	}
-
-	/* Validate check bytes */
-	if ((u16)~(*len ^ check)) {
-		brcmf_dbg(ERROR, "(nextlen): HW hdr error: nextlen/len/check 0x%04x/0x%04x/0x%04x\n",
-			  nextlen, *len, check);
-		bus->sdcnt.rx_badhdr++;
-		brcmf_sdbrcm_rxfail(bus, false, false);
-		goto fail;
-	}
-
-	/* Validate frame length */
-	if (*len < SDPCM_HDRLEN) {
-		brcmf_dbg(ERROR, "(nextlen): HW hdr length invalid: %d\n",
-			  *len);
-		goto fail;
-	}
-
-	/* Check for consistency with readahead info */
-	len_consistent = (nextlen != (roundup(*len, 16) >> 4));
-	if (len_consistent) {
-		/* Mismatch, force retry w/normal
-			header (may be >4K) */
-		brcmf_dbg(ERROR, "(nextlen): mismatch, nextlen %d len %d rnd %d; expected rxseq %d\n",
-			  nextlen, *len, roundup(*len, 16),
-			  rxseq);
-		brcmf_sdbrcm_rxfail(bus, true, true);
-		goto fail;
-	}
-
-	return 0;
-
-fail:
-	brcmf_sdbrcm_pktfree2(bus, pkt);
-	return -EINVAL;
-}
-
-/* Return true if there may be more frames to read */
-static uint
-brcmf_sdbrcm_readframes(struct brcmf_sdio *bus, uint maxframes, bool *finished)
-{
-	u16 len, check;	/* Extracted hardware header fields */
-	u8 chan, seq, doff;	/* Extracted software header fields */
-	u8 fcbits;		/* Extracted fcbits from software header */
-
 	struct sk_buff *pkt;		/* Packet for event or data frames */
 	u16 pad;		/* Number of pad bytes to read */
-	u16 rdlen;		/* Total number of bytes to read */
-	u8 rxseq;		/* Next sequence number to expect */
 	uint rxleft = 0;	/* Remaining number of frames allowed */
 	int sdret;		/* Return code from calls */
-	u8 txmax;		/* Maximum tx sequence offered */
-	u8 *rxbuf;
 	int ifidx = 0;
 	uint rxcount = 0;	/* Total frames read */
+	struct brcmf_sdio_read *rd = &bus->cur_read, rd_new;
+	u8 head_read = 0;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
 	/* Not finished unless we encounter no more frames indication */
-	*finished = false;
+	bus->rxpending = true;
 
-	for (rxseq = bus->rx_seq, rxleft = maxframes;
+	for (rd->seq_num = bus->rx_seq, rxleft = maxframes;
 	     !bus->rxskip && rxleft &&
 	     bus->sdiodev->bus_if->state != BRCMF_BUS_DOWN;
-	     rxseq++, rxleft--) {
+	     rd->seq_num++, rxleft--) {
 
 		/* Handle glomming separately */
 		if (bus->glomd || !skb_queue_empty(&bus->glom)) {
 			u8 cnt;
 			brcmf_dbg(GLOM, "calling rxglom: glomd %p, glom %p\n",
 				  bus->glomd, skb_peek(&bus->glom));
-			cnt = brcmf_sdbrcm_rxglom(bus, rxseq);
+			cnt = brcmf_sdbrcm_rxglom(bus, rd->seq_num);
 			brcmf_dbg(GLOM, "rxglom returned %d\n", cnt);
-			rxseq += cnt - 1;
+			rd->seq_num += cnt - 1;
 			rxleft = (rxleft > cnt) ? (rxleft - cnt) : 1;
 			continue;
 		}
 
-		/* Try doing single read if we can */
-		if (bus->nextlen) {
-			u16 nextlen = bus->nextlen;
-			bus->nextlen = 0;
-
-			rdlen = len = nextlen << 4;
-			brcmf_pad(bus, &pad, &rdlen);
-
-			/*
-			 * After the frame is received we have to
-			 * distinguish whether it is data
-			 * or non-data frame.
-			 */
-			brcmf_alloc_pkt_and_read(bus, rdlen, &pkt, &rxbuf);
-			if (pkt == NULL) {
-				/* Give up on data, request rtx of events */
-				brcmf_dbg(ERROR, "(nextlen): brcmf_alloc_pkt_and_read failed: len %d rdlen %d expected rxseq %d\n",
-					  len, rdlen, rxseq);
-				continue;
-			}
-
-			if (brcmf_check_rxbuf(bus, pkt, rxbuf, rxseq, nextlen,
-					      &len) < 0)
+		rd->len_left = rd->len;
+		/* read header first for unknow frame length */
+		if (!rd->len) {
+			sdret = brcmf_sdcard_recv_buf(bus->sdiodev,
+						      bus->sdiodev->sbwad,
+						      SDIO_FUNC_2, F2SYNC,
+						      bus->rxhdr,
+						      BRCMF_FIRSTREAD);
+			bus->sdcnt.f2rxhdrs++;
+			if (sdret < 0) {
+				brcmf_dbg(ERROR, "RXHEADER FAILED: %d\n",
+					  sdret);
+				bus->sdcnt.rx_hdrfail++;
+				brcmf_sdbrcm_rxfail(bus, true, true);
 				continue;
-
-			/* Extract software header fields */
-			chan = SDPCM_PACKET_CHANNEL(
-					&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-			seq = SDPCM_PACKET_SEQUENCE(
-					&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-			doff = SDPCM_DOFFSET_VALUE(
-					&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-			txmax = SDPCM_WINDOW_VALUE(
-					&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-
-			bus->nextlen =
-			    bus->rxhdr[SDPCM_FRAMETAG_LEN +
-				       SDPCM_NEXTLEN_OFFSET];
-			if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
-				brcmf_dbg(INFO, "(nextlen): got frame w/nextlen too large (%d), seq %d\n",
-					  bus->nextlen, seq);
-				bus->nextlen = 0;
 			}
 
-			bus->sdcnt.rx_readahead_cnt++;
-
-			/* Handle Flow Control */
-			fcbits = SDPCM_FCMASK_VALUE(
-					&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-
-			if (bus->flowcontrol != fcbits) {
-				if (~bus->flowcontrol & fcbits)
-					bus->sdcnt.fc_xoff++;
-
-				if (bus->flowcontrol & ~fcbits)
-					bus->sdcnt.fc_xon++;
-
-				bus->sdcnt.fc_rcvd++;
-				bus->flowcontrol = fcbits;
-			}
-
-			/* Check and update sequence number */
-			if (rxseq != seq) {
-				brcmf_dbg(INFO, "(nextlen): rx_seq %d, expected %d\n",
-					  seq, rxseq);
-				bus->sdcnt.rx_badseq++;
-				rxseq = seq;
-			}
-
-			/* Check window for sanity */
-			if ((u8) (txmax - bus->tx_seq) > 0x40) {
-				brcmf_dbg(ERROR, "got unlikely tx max %d with tx_seq %d\n",
-					  txmax, bus->tx_seq);
-				txmax = bus->tx_seq + 2;
-			}
-			bus->tx_max = txmax;
-
-			brcmf_dbg_hex_dump(BRCMF_BYTES_ON() && BRCMF_DATA_ON(),
-					   rxbuf, len, "Rx Data:\n");
-			brcmf_dbg_hex_dump(!(BRCMF_BYTES_ON() &&
-					     BRCMF_DATA_ON()) &&
-					   BRCMF_HDRS_ON(),
+			brcmf_dbg_hex_dump(BRCMF_BYTES_ON() || BRCMF_HDRS_ON(),
 					   bus->rxhdr, SDPCM_HDRLEN,
 					   "RxHdr:\n");
 
-			if (chan == SDPCM_CONTROL_CHANNEL) {
-				brcmf_dbg(ERROR, "(nextlen): readahead on control packet %d?\n",
-					  seq);
-				/* Force retry w/normal header read */
-				bus->nextlen = 0;
-				brcmf_sdbrcm_rxfail(bus, false, true);
-				brcmf_sdbrcm_pktfree2(bus, pkt);
-				continue;
+			if (!brcmf_sdio_hdparser(bus, bus->rxhdr, rd)) {
+				if (!bus->rxpending)
+					break;
+				else
+					continue;
 			}
 
-			/* Validate data offset */
-			if ((doff < SDPCM_HDRLEN) || (doff > len)) {
-				brcmf_dbg(ERROR, "(nextlen): bad data offset %d: HW len %d min %d\n",
-					  doff, len, SDPCM_HDRLEN);
-				brcmf_sdbrcm_rxfail(bus, false, false);
-				brcmf_sdbrcm_pktfree2(bus, pkt);
+			if (rd->channel == SDPCM_CONTROL_CHANNEL) {
+				brcmf_sdbrcm_read_control(bus, bus->rxhdr,
+							  rd->len,
+							  rd->dat_offset);
+				/* prepare the descriptor for the next read */
+				rd->len = rd->len_nxtfrm << 4;
+				rd->len_nxtfrm = 0;
+				/* treat all packet as event if we don't know */
+				rd->channel = SDPCM_EVENT_CHANNEL;
 				continue;
 			}
-
-			/* All done with this one -- now deliver the packet */
-			goto deliver;
-		}
-
-		/* Read frame header (hardware and software) */
-		sdret = brcmf_sdcard_recv_buf(bus->sdiodev, bus->sdiodev->sbwad,
-					      SDIO_FUNC_2, F2SYNC, bus->rxhdr,
-					      BRCMF_FIRSTREAD);
-		bus->sdcnt.f2rxhdrs++;
-
-		if (sdret < 0) {
-			brcmf_dbg(ERROR, "RXHEADER FAILED: %d\n", sdret);
-			bus->sdcnt.rx_hdrfail++;
-			brcmf_sdbrcm_rxfail(bus, true, true);
-			continue;
-		}
-		brcmf_dbg_hex_dump(BRCMF_BYTES_ON() || BRCMF_HDRS_ON(),
-				   bus->rxhdr, SDPCM_HDRLEN, "RxHdr:\n");
-
-
-		/* Extract hardware header fields */
-		len = get_unaligned_le16(bus->rxhdr);
-		check = get_unaligned_le16(bus->rxhdr + sizeof(u16));
-
-		/* All zeros means no more frames */
-		if (!(len | check)) {
-			*finished = true;
-			break;
-		}
-
-		/* Validate check bytes */
-		if ((u16) ~(len ^ check)) {
-			brcmf_dbg(ERROR, "HW hdr err: len/check 0x%04x/0x%04x\n",
-				  len, check);
-			bus->sdcnt.rx_badhdr++;
-			brcmf_sdbrcm_rxfail(bus, false, false);
-			continue;
-		}
-
-		/* Validate frame length */
-		if (len < SDPCM_HDRLEN) {
-			brcmf_dbg(ERROR, "HW hdr length invalid: %d\n", len);
-			continue;
-		}
-
-		/* Extract software header fields */
-		chan = SDPCM_PACKET_CHANNEL(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-		seq = SDPCM_PACKET_SEQUENCE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-		doff = SDPCM_DOFFSET_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-		txmax = SDPCM_WINDOW_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-
-		/* Validate data offset */
-		if ((doff < SDPCM_HDRLEN) || (doff > len)) {
-			brcmf_dbg(ERROR, "Bad data offset %d: HW len %d, min %d seq %d\n",
-				  doff, len, SDPCM_HDRLEN, seq);
-			bus->sdcnt.rx_badhdr++;
-			brcmf_sdbrcm_rxfail(bus, false, false);
-			continue;
-		}
-
-		/* Save the readahead length if there is one */
-		bus->nextlen =
-		    bus->rxhdr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
-		if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
-			brcmf_dbg(INFO, "(nextlen): got frame w/nextlen too large (%d), seq %d\n",
-				  bus->nextlen, seq);
-			bus->nextlen = 0;
-		}
-
-		/* Handle Flow Control */
-		fcbits = SDPCM_FCMASK_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
-
-		if (bus->flowcontrol != fcbits) {
-			if (~bus->flowcontrol & fcbits)
-				bus->sdcnt.fc_xoff++;
-
-			if (bus->flowcontrol & ~fcbits)
-				bus->sdcnt.fc_xon++;
-
-			bus->sdcnt.fc_rcvd++;
-			bus->flowcontrol = fcbits;
-		}
-
-		/* Check and update sequence number */
-		if (rxseq != seq) {
-			brcmf_dbg(INFO, "rx_seq %d, expected %d\n", seq, rxseq);
-			bus->sdcnt.rx_badseq++;
-			rxseq = seq;
-		}
-
-		/* Check window for sanity */
-		if ((u8) (txmax - bus->tx_seq) > 0x40) {
-			brcmf_dbg(ERROR, "unlikely tx max %d with tx_seq %d\n",
-				  txmax, bus->tx_seq);
-			txmax = bus->tx_seq + 2;
-		}
-		bus->tx_max = txmax;
-
-		/* Call a separate function for control frames */
-		if (chan == SDPCM_CONTROL_CHANNEL) {
-			brcmf_sdbrcm_read_control(bus, bus->rxhdr, len, doff);
-			continue;
-		}
-
-		/* precondition: chan is either SDPCM_DATA_CHANNEL,
-		   SDPCM_EVENT_CHANNEL, SDPCM_TEST_CHANNEL or
-		   SDPCM_GLOM_CHANNEL */
-
-		/* Length to read */
-		rdlen = (len > BRCMF_FIRSTREAD) ? (len - BRCMF_FIRSTREAD) : 0;
-
-		/* May pad read to blocksize for efficiency */
-		if (bus->roundup && bus->blocksize &&
-			(rdlen > bus->blocksize)) {
-			pad = bus->blocksize - (rdlen % bus->blocksize);
-			if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
-			    ((rdlen + pad + BRCMF_FIRSTREAD) < MAX_RX_DATASZ))
-				rdlen += pad;
-		} else if (rdlen % BRCMF_SDALIGN) {
-			rdlen += BRCMF_SDALIGN - (rdlen % BRCMF_SDALIGN);
+			rd->len_left = rd->len > BRCMF_FIRSTREAD ?
+				       rd->len - BRCMF_FIRSTREAD : 0;
+			head_read = BRCMF_FIRSTREAD;
 		}
 
-		/* Satisfy length-alignment requirements */
-		if (rdlen & (ALIGNMENT - 1))
-			rdlen = roundup(rdlen, ALIGNMENT);
-
-		if ((rdlen + BRCMF_FIRSTREAD) > MAX_RX_DATASZ) {
-			/* Too long -- skip this frame */
-			brcmf_dbg(ERROR, "too long: len %d rdlen %d\n",
-				  len, rdlen);
-			bus->sdiodev->bus_if->dstats.rx_errors++;
-			bus->sdcnt.rx_toolong++;
-			brcmf_sdbrcm_rxfail(bus, false, false);
-			continue;
-		}
+		brcmf_pad(bus, &pad, &rd->len_left);
 
-		pkt = brcmu_pkt_buf_get_skb(rdlen +
-					    BRCMF_FIRSTREAD + BRCMF_SDALIGN);
+		pkt = brcmu_pkt_buf_get_skb(rd->len_left + head_read +
+					    BRCMF_SDALIGN);
 		if (!pkt) {
 			/* Give up on data, request rtx of events */
-			brcmf_dbg(ERROR, "brcmu_pkt_buf_get_skb failed: rdlen %d chan %d\n",
-				  rdlen, chan);
+			brcmf_dbg(ERROR, "brcmu_pkt_buf_get_skb failed\n");
 			bus->sdiodev->bus_if->dstats.rx_dropped++;
-			brcmf_sdbrcm_rxfail(bus, false, RETRYCHAN(chan));
+			brcmf_sdbrcm_rxfail(bus, false,
+					    RETRYCHAN(rd->channel));
 			continue;
 		}
+		skb_pull(pkt, head_read);
+		pkt_align(pkt, rd->len_left, BRCMF_SDALIGN);
 
-		/* Leave room for what we already read, and align remainder */
-		skb_pull(pkt, BRCMF_FIRSTREAD);
-		pkt_align(pkt, rdlen, BRCMF_SDALIGN);
-
-		/* Read the remaining frame data */
 		sdret = brcmf_sdcard_recv_pkt(bus->sdiodev, bus->sdiodev->sbwad,
 					      SDIO_FUNC_2, F2SYNC, pkt);
 		bus->sdcnt.f2rxdata++;
 
 		if (sdret < 0) {
-			brcmf_dbg(ERROR, "read %d %s bytes failed: %d\n", rdlen,
-				  ((chan == SDPCM_EVENT_CHANNEL) ? "event"
-				   : ((chan == SDPCM_DATA_CHANNEL) ? "data"
-				      : "test")), sdret);
+			brcmf_dbg(ERROR, "read %d bytes from channel %d failed: %d\n",
+				  rd->len, rd->channel, sdret);
 			brcmu_pkt_buf_free_skb(pkt);
 			bus->sdiodev->bus_if->dstats.rx_errors++;
-			brcmf_sdbrcm_rxfail(bus, true, RETRYCHAN(chan));
+			brcmf_sdbrcm_rxfail(bus, true,
+					    RETRYCHAN(rd->channel));
 			continue;
 		}
 
-		/* Copy the already-read portion */
-		skb_push(pkt, BRCMF_FIRSTREAD);
-		memcpy(pkt->data, bus->rxhdr, BRCMF_FIRSTREAD);
+		if (head_read) {
+			skb_push(pkt, head_read);
+			memcpy(pkt->data, bus->rxhdr, head_read);
+			head_read = 0;
+		} else {
+			memcpy(bus->rxhdr, pkt->data, SDPCM_HDRLEN);
+			rd_new.seq_num = rd->seq_num;
+			if (!brcmf_sdio_hdparser(bus, bus->rxhdr, &rd_new)) {
+				rd->len = 0;
+				brcmu_pkt_buf_free_skb(pkt);
+			}
+			bus->sdcnt.rx_readahead_cnt++;
+			if (rd->len != roundup(rd_new.len, 16)) {
+				brcmf_dbg(ERROR, "frame length mismatch:read %d, should be %d\n",
+					  rd->len,
+					  roundup(rd_new.len, 16) >> 4);
+				rd->len = 0;
+				brcmf_sdbrcm_rxfail(bus, true, true);
+				brcmu_pkt_buf_free_skb(pkt);
+				continue;
+			}
+			rd->len_nxtfrm = rd_new.len_nxtfrm;
+			rd->channel = rd_new.channel;
+			rd->dat_offset = rd_new.dat_offset;
+
+			brcmf_dbg_hex_dump(!(BRCMF_BYTES_ON() &&
+					     BRCMF_DATA_ON()) &&
+					   BRCMF_HDRS_ON(),
+					   bus->rxhdr, SDPCM_HDRLEN,
+					   "RxHdr:\n");
+
+			if (rd_new.channel == SDPCM_CONTROL_CHANNEL) {
+				brcmf_dbg(ERROR, "readahead on control packet %d?\n",
+					  rd_new.seq_num);
+				/* Force retry w/normal header read */
+				rd->len = 0;
+				brcmf_sdbrcm_rxfail(bus, false, true);
+				brcmu_pkt_buf_free_skb(pkt);
+				continue;
+			}
+		}
 
 		brcmf_dbg_hex_dump(BRCMF_BYTES_ON() && BRCMF_DATA_ON(),
-				   pkt->data, len, "Rx Data:\n");
+				   pkt->data, rd->len, "Rx Data:\n");
 
-deliver:
 		/* Save superframe descriptor and allocate packet frame */
-		if (chan == SDPCM_GLOM_CHANNEL) {
+		if (rd->channel == SDPCM_GLOM_CHANNEL) {
 			if (SDPCM_GLOMDESC(&bus->rxhdr[SDPCM_FRAMETAG_LEN])) {
 				brcmf_dbg(GLOM, "glom descriptor, %d bytes:\n",
-					  len);
+					  rd->len);
 				brcmf_dbg_hex_dump(BRCMF_GLOM_ON(),
-						   pkt->data, len,
+						   pkt->data, rd->len,
 						   "Glom Data:\n");
-				__skb_trim(pkt, len);
+				__skb_trim(pkt, rd->len);
 				skb_pull(pkt, SDPCM_HDRLEN);
 				bus->glomd = pkt;
 			} else {
@@ -1996,12 +1755,23 @@ deliver:
 					  "descriptor!\n", __func__);
 				brcmf_sdbrcm_rxfail(bus, false, false);
 			}
+			/* prepare the descriptor for the next read */
+			rd->len = rd->len_nxtfrm << 4;
+			rd->len_nxtfrm = 0;
+			/* treat all packet as event if we don't know */
+			rd->channel = SDPCM_EVENT_CHANNEL;
 			continue;
 		}
 
 		/* Fill in packet len and prio, deliver upward */
-		__skb_trim(pkt, len);
-		skb_pull(pkt, doff);
+		__skb_trim(pkt, rd->len);
+		skb_pull(pkt, rd->dat_offset);
+
+		/* prepare the descriptor for the next read */
+		rd->len = rd->len_nxtfrm << 4;
+		rd->len_nxtfrm = 0;
+		/* treat all packet as event if we don't know */
+		rd->channel = SDPCM_EVENT_CHANNEL;
 
 		if (pkt->len == 0) {
 			brcmu_pkt_buf_free_skb(pkt);
@@ -2019,17 +1789,17 @@ deliver:
 		brcmf_rx_packet(bus->sdiodev->dev, ifidx, pkt);
 		down(&bus->sdsem);
 	}
+
 	rxcount = maxframes - rxleft;
 	/* Message if we hit the limit */
 	if (!rxleft)
-		brcmf_dbg(DATA, "hit rx limit of %d frames\n",
-			  maxframes);
+		brcmf_dbg(DATA, "hit rx limit of %d frames\n", maxframes);
 	else
 		brcmf_dbg(DATA, "processed %d frames\n", rxcount);
 	/* Back off rxseq if awaiting rtx, update rx_seq */
 	if (bus->rxskip)
-		rxseq--;
-	bus->rx_seq = rxseq;
+		rd->seq_num--;
+	bus->rx_seq = rd->seq_num;
 
 	return rxcount;
 }
@@ -2227,7 +1997,7 @@ static uint brcmf_sdbrcm_sendfromq(struct brcmf_sdio *bus, uint maxframes)
 			if (ret != 0)
 				break;
 			if (intstatus & bus->hostintmask)
-				bus->ipend = true;
+				atomic_set(&bus->ipend, 1);
 		}
 	}
 
@@ -2235,8 +2005,8 @@ static uint brcmf_sdbrcm_sendfromq(struct brcmf_sdio *bus, uint maxframes)
 	if (bus->sdiodev->bus_if->drvr_up &&
 	    (bus->sdiodev->bus_if->state == BRCMF_BUS_DATA) &&
 	    bus->txoff && (pktq_len(&bus->txq) < TXLOW)) {
-		bus->txoff = OFF;
-		brcmf_txflowcontrol(bus->sdiodev->dev, 0, OFF);
+		bus->txoff = false;
+		brcmf_txflowblock(bus->sdiodev->dev, false);
 	}
 
 	return cnt;
@@ -2259,16 +2029,8 @@ static void brcmf_sdbrcm_bus_stop(struct device *dev)
 		bus->watchdog_tsk = NULL;
 	}
 
-	if (bus->dpc_tsk && bus->dpc_tsk != current) {
-		send_sig(SIGTERM, bus->dpc_tsk, 1);
-		kthread_stop(bus->dpc_tsk);
-		bus->dpc_tsk = NULL;
-	}
-
 	down(&bus->sdsem);
 
-	bus_wake(bus);
-
 	/* Enable clock for device interrupts */
 	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
 
@@ -2327,7 +2089,7 @@ static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
 	unsigned long flags;
 
 	spin_lock_irqsave(&bus->sdiodev->irq_en_lock, flags);
-	if (!bus->sdiodev->irq_en && !bus->ipend) {
+	if (!bus->sdiodev->irq_en && !atomic_read(&bus->ipend)) {
 		enable_irq(bus->sdiodev->irq);
 		bus->sdiodev->irq_en = true;
 	}
@@ -2339,21 +2101,69 @@ static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
 }
 #endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
 
-static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
+static inline void brcmf_sdbrcm_adddpctsk(struct brcmf_sdio *bus)
 {
-	u32 intstatus, newstatus = 0;
+	struct list_head *new_hd;
+	unsigned long flags;
+
+	if (in_interrupt())
+		new_hd = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
+	else
+		new_hd = kzalloc(sizeof(struct list_head), GFP_KERNEL);
+	if (new_hd == NULL)
+		return;
+
+	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
+	list_add_tail(new_hd, &bus->dpc_tsklst);
+	spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
+}
+
+static int brcmf_sdio_intr_rstatus(struct brcmf_sdio *bus)
+{
+	u8 idx;
+	u32 addr;
+	unsigned long val;
+	int n, ret;
+
+	idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_SDIO_DEV);
+	addr = bus->ci->c_inf[idx].base +
+	       offsetof(struct sdpcmd_regs, intstatus);
+
+	ret = brcmf_sdio_regrw_helper(bus->sdiodev, addr, &val, false);
+	bus->sdcnt.f1regdata++;
+	if (ret != 0)
+		val = 0;
+
+	val &= bus->hostintmask;
+	atomic_set(&bus->fcstate, !!(val & I_HMB_FC_STATE));
+
+	/* Clear interrupts */
+	if (val) {
+		ret = brcmf_sdio_regrw_helper(bus->sdiodev, addr, &val, true);
+		bus->sdcnt.f1regdata++;
+	}
+
+	if (ret) {
+		atomic_set(&bus->intstatus, 0);
+	} else if (val) {
+		for_each_set_bit(n, &val, 32)
+			set_bit(n, (unsigned long *)&bus->intstatus.counter);
+	}
+
+	return ret;
+}
+
+static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
+{
+	u32 newstatus = 0;
+	unsigned long intstatus;
 	uint rxlimit = bus->rxbound;	/* Rx frames to read before resched */
 	uint txlimit = bus->txbound;	/* Tx frames to send before resched */
 	uint framecnt = 0;	/* Temporary counter of tx/rx frames */
-	bool rxdone = true;	/* Flag for no more read data */
-	bool resched = false;	/* Flag indicating resched wanted */
-	int err;
+	int err = 0, n;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
-	/* Start with leftover status bits */
-	intstatus = bus->intstatus;
-
 	down(&bus->sdsem);
 
 	/* If waiting for HTAVAIL, check status */
@@ -2399,39 +2209,22 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 				bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
 			}
 			bus->clkstate = CLK_AVAIL;
-		} else {
-			goto clkwait;
 		}
 	}
 
-	bus_wake(bus);
-
 	/* Make sure backplane clock is on */
 	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, true);
-	if (bus->clkstate == CLK_PENDING)
-		goto clkwait;
 
 	/* Pending interrupt indicates new device status */
-	if (bus->ipend) {
-		bus->ipend = false;
-		err = r_sdreg32(bus, &newstatus,
-				offsetof(struct sdpcmd_regs, intstatus));
-		bus->sdcnt.f1regdata++;
-		if (err != 0)
-			newstatus = 0;
-		newstatus &= bus->hostintmask;
-		bus->fcstate = !!(newstatus & I_HMB_FC_STATE);
-		if (newstatus) {
-			err = w_sdreg32(bus, newstatus,
-					offsetof(struct sdpcmd_regs,
-						 intstatus));
-			bus->sdcnt.f1regdata++;
-		}
+	if (atomic_read(&bus->ipend) > 0) {
+		atomic_set(&bus->ipend, 0);
+		sdio_claim_host(bus->sdiodev->func[1]);
+		err = brcmf_sdio_intr_rstatus(bus);
+		sdio_release_host(bus->sdiodev->func[1]);
 	}
 
-	/* Merge new bits with previous */
-	intstatus |= newstatus;
-	bus->intstatus = 0;
+	/* Start with leftover status bits */
+	intstatus = atomic_xchg(&bus->intstatus, 0);
 
 	/* Handle flow-control change: read new state in case our ack
 	 * crossed another change interrupt.  If change still set, assume
@@ -2445,8 +2238,8 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 		err = r_sdreg32(bus, &newstatus,
 				offsetof(struct sdpcmd_regs, intstatus));
 		bus->sdcnt.f1regdata += 2;
-		bus->fcstate =
-		    !!(newstatus & (I_HMB_FC_STATE | I_HMB_FC_CHANGE));
+		atomic_set(&bus->fcstate,
+			   !!(newstatus & (I_HMB_FC_STATE | I_HMB_FC_CHANGE)));
 		intstatus |= (newstatus & bus->hostintmask);
 	}
 
@@ -2483,32 +2276,34 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 		intstatus &= ~I_HMB_FRAME_IND;
 
 	/* On frame indication, read available frames */
-	if (PKT_AVAILABLE()) {
-		framecnt = brcmf_sdbrcm_readframes(bus, rxlimit, &rxdone);
-		if (rxdone || bus->rxskip)
+	if (PKT_AVAILABLE() && bus->clkstate == CLK_AVAIL) {
+		framecnt = brcmf_sdio_readframes(bus, rxlimit);
+		if (!bus->rxpending)
 			intstatus &= ~I_HMB_FRAME_IND;
 		rxlimit -= min(framecnt, rxlimit);
 	}
 
 	/* Keep still-pending events for next scheduling */
-	bus->intstatus = intstatus;
+	if (intstatus) {
+		for_each_set_bit(n, &intstatus, 32)
+			set_bit(n, (unsigned long *)&bus->intstatus.counter);
+	}
 
-clkwait:
 	brcmf_sdbrcm_clrintr(bus);
 
 	if (data_ok(bus) && bus->ctrl_frame_stat &&
 		(bus->clkstate == CLK_AVAIL)) {
-		int ret, i;
+		int i;
 
-		ret = brcmf_sdcard_send_buf(bus->sdiodev, bus->sdiodev->sbwad,
+		err = brcmf_sdcard_send_buf(bus->sdiodev, bus->sdiodev->sbwad,
 			SDIO_FUNC_2, F2SYNC, bus->ctrl_frame_buf,
 			(u32) bus->ctrl_frame_len);
 
-		if (ret < 0) {
+		if (err < 0) {
 			/* On failure, abort the command and
 				terminate the frame */
 			brcmf_dbg(INFO, "sdio error %d, abort command and terminate frame\n",
-				  ret);
+				  err);
 			bus->sdcnt.tx_sderrs++;
 
 			brcmf_sdcard_abort(bus->sdiodev, SDIO_FUNC_2);
@@ -2530,42 +2325,34 @@ clkwait:
 					break;
 			}
 
-		}
-		if (ret == 0)
+		} else {
 			bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
-
-		brcmf_dbg(INFO, "Return_dpc value is : %d\n", ret);
+		}
 		bus->ctrl_frame_stat = false;
 		brcmf_sdbrcm_wait_event_wakeup(bus);
 	}
 	/* Send queued frames (limit 1 if rx may still be pending) */
-	else if ((bus->clkstate == CLK_AVAIL) && !bus->fcstate &&
+	else if ((bus->clkstate == CLK_AVAIL) && !atomic_read(&bus->fcstate) &&
 		 brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol) && txlimit
 		 && data_ok(bus)) {
-		framecnt = rxdone ? txlimit : min(txlimit, bus->txminmax);
+		framecnt = bus->rxpending ? min(txlimit, bus->txminmax) :
+					    txlimit;
 		framecnt = brcmf_sdbrcm_sendfromq(bus, framecnt);
 		txlimit -= framecnt;
 	}
 
-	/* Resched if events or tx frames are pending,
-		 else await next interrupt */
-	/* On failed register access, all bets are off:
-		 no resched or interrupts */
 	if ((bus->sdiodev->bus_if->state == BRCMF_BUS_DOWN) || (err != 0)) {
 		brcmf_dbg(ERROR, "failed backplane access over SDIO, halting operation\n");
 		bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
-		bus->intstatus = 0;
-	} else if (bus->clkstate == CLK_PENDING) {
-		brcmf_dbg(INFO, "rescheduled due to CLK_PENDING awaiting I_CHIPACTIVE interrupt\n");
-		resched = true;
-	} else if (bus->intstatus || bus->ipend ||
-		(!bus->fcstate && brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol)
-		 && data_ok(bus)) || PKT_AVAILABLE()) {
-		resched = true;
+		atomic_set(&bus->intstatus, 0);
+	} else if (atomic_read(&bus->intstatus) ||
+		   atomic_read(&bus->ipend) > 0 ||
+		   (!atomic_read(&bus->fcstate) &&
+		    brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol) &&
+		    data_ok(bus)) || PKT_AVAILABLE()) {
+		brcmf_sdbrcm_adddpctsk(bus);
 	}
 
-	bus->dpc_sched = resched;
-
 	/* If we're done for now, turn off clock request. */
 	if ((bus->clkstate != CLK_PENDING)
 	    && bus->idletime == BRCMF_IDLE_IMMEDIATE) {
@@ -2574,65 +2361,6 @@ clkwait:
 	}
 
 	up(&bus->sdsem);
-
-	return resched;
-}
-
-static inline void brcmf_sdbrcm_adddpctsk(struct brcmf_sdio *bus)
-{
-	struct list_head *new_hd;
-	unsigned long flags;
-
-	if (in_interrupt())
-		new_hd = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
-	else
-		new_hd = kzalloc(sizeof(struct list_head), GFP_KERNEL);
-	if (new_hd == NULL)
-		return;
-
-	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-	list_add_tail(new_hd, &bus->dpc_tsklst);
-	spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
-}
-
-static int brcmf_sdbrcm_dpc_thread(void *data)
-{
-	struct brcmf_sdio *bus = (struct brcmf_sdio *) data;
-	struct list_head *cur_hd, *tmp_hd;
-	unsigned long flags;
-
-	allow_signal(SIGTERM);
-	/* Run until signal received */
-	while (1) {
-		if (kthread_should_stop())
-			break;
-
-		if (list_empty(&bus->dpc_tsklst))
-			if (wait_for_completion_interruptible(&bus->dpc_wait))
-				break;
-
-		spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-		list_for_each_safe(cur_hd, tmp_hd, &bus->dpc_tsklst) {
-			spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
-
-			if (bus->sdiodev->bus_if->state == BRCMF_BUS_DOWN) {
-				/* after stopping the bus, exit thread */
-				brcmf_sdbrcm_bus_stop(bus->sdiodev->dev);
-				bus->dpc_tsk = NULL;
-				spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-				break;
-			}
-
-			if (brcmf_sdbrcm_dpc(bus))
-				brcmf_sdbrcm_adddpctsk(bus);
-
-			spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-			list_del(cur_hd);
-			kfree(cur_hd);
-		}
-		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
-	}
-	return 0;
 }
 
 static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
@@ -2642,6 +2370,7 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 	struct brcmf_sdio *bus = sdiodev->bus;
+	unsigned long flags;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
@@ -2672,21 +2401,23 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 	spin_unlock_bh(&bus->txqlock);
 
 	if (pktq_len(&bus->txq) >= TXHI) {
-		bus->txoff = ON;
-		brcmf_txflowcontrol(bus->sdiodev->dev, 0, ON);
+		bus->txoff = true;
+		brcmf_txflowblock(bus->sdiodev->dev, true);
 	}
 
 #ifdef DEBUG
 	if (pktq_plen(&bus->txq, prec) > qcount[prec])
 		qcount[prec] = pktq_plen(&bus->txq, prec);
 #endif
-	/* Schedule DPC if needed to send queued packet(s) */
-	if (!bus->dpc_sched) {
-		bus->dpc_sched = true;
-		if (bus->dpc_tsk) {
-			brcmf_sdbrcm_adddpctsk(bus);
-			complete(&bus->dpc_wait);
-		}
+
+	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
+	if (list_empty(&bus->dpc_tsklst)) {
+		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
+
+		brcmf_sdbrcm_adddpctsk(bus);
+		queue_work(bus->brcmf_wq, &bus->datawork);
+	} else {
+		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
 	}
 
 	return ret;
@@ -2707,6 +2438,8 @@ brcmf_sdbrcm_membytes(struct brcmf_sdio *bus, bool write, u32 address, u8 *data,
 	else
 		dsize = size;
 
+	sdio_claim_host(bus->sdiodev->func[1]);
+
 	/* Set the backplane window to include the start address */
 	bcmerror = brcmf_sdcard_set_sbaddr_window(bus->sdiodev, address);
 	if (bcmerror) {
@@ -2748,6 +2481,8 @@ xfer_done:
 		brcmf_dbg(ERROR, "FAILED to set window back to 0x%x\n",
 			  bus->sdiodev->sbwad);
 
+	sdio_release_host(bus->sdiodev->func[1]);
+
 	return bcmerror;
 }
 
@@ -2882,6 +2617,7 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 	struct brcmf_sdio *bus = sdiodev->bus;
+	unsigned long flags;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
@@ -2918,8 +2654,6 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 	/* Need to lock here to protect txseq and SDIO tx calls */
 	down(&bus->sdsem);
 
-	bus_wake(bus);
-
 	/* Make sure backplane clock is on */
 	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
 
@@ -2967,9 +2701,15 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 		} while (ret < 0 && retries++ < TXRETRIES);
 	}
 
-	if ((bus->idletime == BRCMF_IDLE_IMMEDIATE) && !bus->dpc_sched) {
+	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
+	if ((bus->idletime == BRCMF_IDLE_IMMEDIATE) &&
+	    list_empty(&bus->dpc_tsklst)) {
+		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
+
 		bus->activity = false;
 		brcmf_sdbrcm_clkctl(bus, CLK_NONE, true);
+	} else {
+		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
 	}
 
 	up(&bus->sdsem);
@@ -3774,23 +3514,20 @@ void brcmf_sdbrcm_isr(void *arg)
 	}
 	/* Count the interrupt call */
 	bus->sdcnt.intrcount++;
-	bus->ipend = true;
-
-	/* Shouldn't get this interrupt if we're sleeping? */
-	if (bus->sleeping) {
-		brcmf_dbg(ERROR, "INTERRUPT WHILE SLEEPING??\n");
-		return;
-	}
+	if (in_interrupt())
+		atomic_set(&bus->ipend, 1);
+	else
+		if (brcmf_sdio_intr_rstatus(bus)) {
+			brcmf_dbg(ERROR, "failed backplane access\n");
+			bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
+		}
 
 	/* Disable additional interrupts (is this needed now)? */
 	if (!bus->intr)
 		brcmf_dbg(ERROR, "isr w/o interrupt configured!\n");
 
-	bus->dpc_sched = true;
-	if (bus->dpc_tsk) {
-		brcmf_sdbrcm_adddpctsk(bus);
-		complete(&bus->dpc_wait);
-	}
+	brcmf_sdbrcm_adddpctsk(bus);
+	queue_work(bus->brcmf_wq, &bus->datawork);
 }
 
 static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
@@ -3798,13 +3535,10 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 #ifdef DEBUG
 	struct brcmf_bus *bus_if = dev_get_drvdata(bus->sdiodev->dev);
 #endif	/* DEBUG */
+	unsigned long flags;
 
 	brcmf_dbg(TIMER, "Enter\n");
 
-	/* Ignore the timer if simulating bus down */
-	if (bus->sleeping)
-		return false;
-
 	down(&bus->sdsem);
 
 	/* Poll period: check device if appropriate. */
@@ -3818,27 +3552,30 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 		if (!bus->intr ||
 		    (bus->sdcnt.intrcount == bus->sdcnt.lastintrs)) {
 
-			if (!bus->dpc_sched) {
+			spin_lock_irqsave(&bus->dpc_tl_lock, flags);
+			if (list_empty(&bus->dpc_tsklst)) {
 				u8 devpend;
+				spin_unlock_irqrestore(&bus->dpc_tl_lock,
+						       flags);
 				devpend = brcmf_sdio_regrb(bus->sdiodev,
 							   SDIO_CCCR_INTx,
 							   NULL);
 				intstatus =
 				    devpend & (INTR_STATUS_FUNC1 |
 					       INTR_STATUS_FUNC2);
+			} else {
+				spin_unlock_irqrestore(&bus->dpc_tl_lock,
+						       flags);
 			}
 
 			/* If there is something, make like the ISR and
 				 schedule the DPC */
 			if (intstatus) {
 				bus->sdcnt.pollcnt++;
-				bus->ipend = true;
+				atomic_set(&bus->ipend, 1);
 
-				bus->dpc_sched = true;
-				if (bus->dpc_tsk) {
-					brcmf_sdbrcm_adddpctsk(bus);
-					complete(&bus->dpc_wait);
-				}
+				brcmf_sdbrcm_adddpctsk(bus);
+				queue_work(bus->brcmf_wq, &bus->datawork);
 			}
 		}
 
@@ -3876,11 +3613,13 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 
 	up(&bus->sdsem);
 
-	return bus->ipend;
+	return (atomic_read(&bus->ipend) > 0);
 }
 
 static bool brcmf_sdbrcm_chipmatch(u16 chipid)
 {
+	if (chipid == BCM43241_CHIP_ID)
+		return true;
 	if (chipid == BCM4329_CHIP_ID)
 		return true;
 	if (chipid == BCM4330_CHIP_ID)
@@ -3890,6 +3629,26 @@ static bool brcmf_sdbrcm_chipmatch(u16 chipid)
 	return false;
 }
 
+static void brcmf_sdio_dataworker(struct work_struct *work)
+{
+	struct brcmf_sdio *bus = container_of(work, struct brcmf_sdio,
+					      datawork);
+	struct list_head *cur_hd, *tmp_hd;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
+	list_for_each_safe(cur_hd, tmp_hd, &bus->dpc_tsklst) {
+		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
+
+		brcmf_sdbrcm_dpc(bus);
+
+		spin_lock_irqsave(&bus->dpc_tl_lock, flags);
+		list_del(cur_hd);
+		kfree(cur_hd);
+	}
+	spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
+}
+
 static void brcmf_sdbrcm_release_malloc(struct brcmf_sdio *bus)
 {
 	brcmf_dbg(TRACE, "Enter\n");
@@ -4022,7 +3781,6 @@ static bool brcmf_sdbrcm_probe_init(struct brcmf_sdio *bus)
 			 SDIO_FUNC_ENABLE_1, NULL);
 
 	bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
-	bus->sleeping = false;
 	bus->rxflow = false;
 
 	/* Done with backplane-dependent accesses, can drop clock... */
@@ -4103,6 +3861,9 @@ static void brcmf_sdbrcm_release(struct brcmf_sdio *bus)
 		/* De-register interrupt handler */
 		brcmf_sdio_intr_unregister(bus->sdiodev);
 
+		cancel_work_sync(&bus->datawork);
+		destroy_workqueue(bus->brcmf_wq);
+
 		if (bus->sdiodev->bus_if->drvr) {
 			brcmf_detach(bus->sdiodev->dev);
 			brcmf_sdbrcm_release_dongle(bus);
@@ -4142,8 +3903,6 @@ void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev)
 	bus->rxbound = BRCMF_RXBOUND;
 	bus->txminmax = BRCMF_TXMINMAX;
 	bus->tx_seq = SDPCM_SEQUENCE_WRAP - 1;
-	bus->usebufpool = false;	/* Use bufpool if allocated,
-					 else use locally malloced rxbuf */
 
 	/* attempt to attach to the dongle */
 	if (!(brcmf_sdbrcm_probe_attach(bus, regsva))) {
@@ -4155,6 +3914,13 @@ void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev)
 	init_waitqueue_head(&bus->ctrl_wait);
 	init_waitqueue_head(&bus->dcmd_resp_wait);
 
+	bus->brcmf_wq = create_singlethread_workqueue("brcmf_wq");
+	if (bus->brcmf_wq == NULL) {
+		brcmf_dbg(ERROR, "insufficient memory to create txworkqueue\n");
+		goto fail;
+	}
+	INIT_WORK(&bus->datawork, brcmf_sdio_dataworker);
+
 	/* Set up the watchdog timer */
 	init_timer(&bus->timer);
 	bus->timer.data = (unsigned long)bus;
@@ -4172,15 +3938,8 @@ void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev)
 		bus->watchdog_tsk = NULL;
 	}
 	/* Initialize DPC thread */
-	init_completion(&bus->dpc_wait);
 	INIT_LIST_HEAD(&bus->dpc_tsklst);
 	spin_lock_init(&bus->dpc_tl_lock);
-	bus->dpc_tsk = kthread_run(brcmf_sdbrcm_dpc_thread,
-				   bus, "brcmf_dpc");
-	if (IS_ERR(bus->dpc_tsk)) {
-		pr_warn("brcmf_dpc thread failed to start\n");
-		bus->dpc_tsk = NULL;
-	}
 
 	/* Assign bus interface call back */
 	bus->sdiodev->bus_if->brcmf_bus_stop = brcmf_sdbrcm_bus_stop;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
index 58155e23d22..9434440bbc6 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
@@ -377,6 +377,23 @@ static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
 
 	/* Address of cores for new chips should be added here */
 	switch (ci->chip) {
+	case BCM43241_CHIP_ID:
+		ci->c_inf[0].wrapbase = 0x18100000;
+		ci->c_inf[0].cib = 0x2a084411;
+		ci->c_inf[1].id = BCMA_CORE_SDIO_DEV;
+		ci->c_inf[1].base = 0x18002000;
+		ci->c_inf[1].wrapbase = 0x18102000;
+		ci->c_inf[1].cib = 0x0e004211;
+		ci->c_inf[2].id = BCMA_CORE_INTERNAL_MEM;
+		ci->c_inf[2].base = 0x18004000;
+		ci->c_inf[2].wrapbase = 0x18104000;
+		ci->c_inf[2].cib = 0x14080401;
+		ci->c_inf[3].id = BCMA_CORE_ARM_CM3;
+		ci->c_inf[3].base = 0x18003000;
+		ci->c_inf[3].wrapbase = 0x18103000;
+		ci->c_inf[3].cib = 0x07004211;
+		ci->ramsize = 0x90000;
+		break;
 	case BCM4329_CHIP_ID:
 		ci->c_inf[1].id = BCMA_CORE_SDIO_DEV;
 		ci->c_inf[1].base = BCM4329_CORE_BUS_BASE;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 29bf78d264e..0d30afd8c67 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -174,6 +174,8 @@ extern void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr,
 			     u8 data, int *ret);
 extern void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
 			     u32 data, int *ret);
+extern int brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
+				   void *data, bool write);
 
 /* Buffer transfer to/from device (client) core via cmd53.
  *   fn:       function number
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index a299d42da8e..a2b4b1e7101 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -66,7 +66,9 @@
 #define BRCMF_USB_CBCTL_READ	1
 #define BRCMF_USB_MAX_PKT_SIZE	1600
 
+#define BRCMF_USB_43143_FW_NAME	"brcm/brcmfmac43143.bin"
 #define BRCMF_USB_43236_FW_NAME	"brcm/brcmfmac43236b.bin"
+#define BRCMF_USB_43242_FW_NAME	"brcm/brcmfmac43242a.bin"
 
 enum usbdev_suspend_state {
 	USBOS_SUSPEND_STATE_DEVICE_ACTIVE = 0, /* Device is busy, won't allow
@@ -78,25 +80,13 @@ enum usbdev_suspend_state {
 	USBOS_SUSPEND_STATE_SUSPENDED	/* Device suspended */
 };
 
-struct brcmf_usb_probe_info {
-	void *usbdev_info;
-	struct usb_device *usb; /* USB device pointer from OS */
-	uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
-	int intr_size; /* Size of interrupt message */
-	int interval;  /* Interrupt polling interval */
-	int vid;
-	int pid;
-	enum usb_device_speed device_speed;
-	enum usbdev_suspend_state suspend_state;
-	struct usb_interface *intf;
-};
-static struct brcmf_usb_probe_info usbdev_probe_info;
-
 struct brcmf_usb_image {
-	void *data;
-	u32 len;
+	struct list_head list;
+	s8 *fwname;
+	u8 *image;
+	int image_len;
 };
-static struct brcmf_usb_image g_image = { NULL, 0 };
+static struct list_head fw_image_list;
 
 struct intr_transfer_buf {
 	u32 notification;
@@ -117,9 +107,8 @@ struct brcmf_usbdev_info {
 	int rx_low_watermark;
 	int tx_low_watermark;
 	int tx_high_watermark;
-	bool txoff;
-	bool rxoff;
-	bool txoverride;
+	int tx_freecount;
+	bool tx_flowblock;
 
 	struct brcmf_usbreq *tx_reqs;
 	struct brcmf_usbreq *rx_reqs;
@@ -133,7 +122,6 @@ struct brcmf_usbdev_info {
 
 	struct usb_device *usbdev;
 	struct device *dev;
-	enum usb_device_speed  device_speed;
 
 	int ctl_in_pipe, ctl_out_pipe;
 	struct urb *ctl_urb; /* URB for control endpoint */
@@ -146,16 +134,11 @@ struct brcmf_usbdev_info {
 	wait_queue_head_t ctrl_wait;
 	ulong ctl_op;
 
-	bool rxctl_deferrespok;
-
 	struct urb *bulk_urb; /* used for FW download */
 	struct urb *intr_urb; /* URB for interrupt endpoint */
 	int intr_size;          /* Size of interrupt message */
 	int interval;           /* Interrupt polling interval */
 	struct intr_transfer_buf intr; /* Data buffer for interrupt endpoint */
-
-	struct brcmf_usb_probe_info probe_info;
-
 };
 
 static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
@@ -177,48 +160,17 @@ static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
 	return brcmf_usb_get_buspub(dev)->devinfo;
 }
 
-#if 0
-static void
-brcmf_usb_txflowcontrol(struct brcmf_usbdev_info *devinfo, bool onoff)
-{
-	dhd_txflowcontrol(devinfo->bus_pub.netdev, 0, onoff);
-}
-#endif
-
-static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo,
-	 uint *condition, bool *pending)
+static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
 {
-	DECLARE_WAITQUEUE(wait, current);
-	int timeout = IOCTL_RESP_TIMEOUT;
-
-	/* Convert timeout in millsecond to jiffies */
-	timeout = msecs_to_jiffies(timeout);
-	/* Wait until control frame is available */
-	add_wait_queue(&devinfo->ioctl_resp_wait, &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
-
-	smp_mb();
-	while (!(*condition) && (!signal_pending(current) && timeout)) {
-		timeout = schedule_timeout(timeout);
-		/* Wait until control frame is available */
-		smp_mb();
-	}
-
-	if (signal_pending(current))
-		*pending = true;
-
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&devinfo->ioctl_resp_wait, &wait);
-
-	return timeout;
+	return wait_event_timeout(devinfo->ioctl_resp_wait,
+				  devinfo->ctl_completed,
+				  msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
 }
 
-static int brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
+static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
 {
 	if (waitqueue_active(&devinfo->ioctl_resp_wait))
-		wake_up_interruptible(&devinfo->ioctl_resp_wait);
-
-	return 0;
+		wake_up(&devinfo->ioctl_resp_wait);
 }
 
 static void
@@ -324,17 +276,9 @@ brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
 	devinfo->ctl_read.wLength = cpu_to_le16p(&size);
 	devinfo->ctl_urb->transfer_buffer_length = size;
 
-	if (devinfo->rxctl_deferrespok) {
-		/* BMAC model */
-		devinfo->ctl_read.bRequestType = USB_DIR_IN
-			| USB_TYPE_VENDOR | USB_RECIP_INTERFACE;
-		devinfo->ctl_read.bRequest = DL_DEFER_RESP_OK;
-	} else {
-		/* full dongle model */
-		devinfo->ctl_read.bRequestType = USB_DIR_IN
-			| USB_TYPE_CLASS | USB_RECIP_INTERFACE;
-		devinfo->ctl_read.bRequest = 1;
-	}
+	devinfo->ctl_read.bRequestType = USB_DIR_IN
+		| USB_TYPE_CLASS | USB_RECIP_INTERFACE;
+	devinfo->ctl_read.bRequest = 1;
 
 	usb_fill_control_urb(devinfo->ctl_urb,
 		devinfo->usbdev,
@@ -355,7 +299,6 @@ static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
 {
 	int err = 0;
 	int timeout = 0;
-	bool pending;
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
 
 	if (devinfo->bus_pub.state != BCMFMAC_USB_STATE_UP) {
@@ -366,15 +309,14 @@ static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
 	if (test_and_set_bit(0, &devinfo->ctl_op))
 		return -EIO;
 
+	devinfo->ctl_completed = false;
 	err = brcmf_usb_send_ctl(devinfo, buf, len);
 	if (err) {
 		brcmf_dbg(ERROR, "fail %d bytes: %d\n", err, len);
+		clear_bit(0, &devinfo->ctl_op);
 		return err;
 	}
-
-	devinfo->ctl_completed = false;
-	timeout = brcmf_usb_ioctl_resp_wait(devinfo, &devinfo->ctl_completed,
-					    &pending);
+	timeout = brcmf_usb_ioctl_resp_wait(devinfo);
 	clear_bit(0, &devinfo->ctl_op);
 	if (!timeout) {
 		brcmf_dbg(ERROR, "Txctl wait timed out\n");
@@ -387,7 +329,6 @@ static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
 {
 	int err = 0;
 	int timeout = 0;
-	bool pending;
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
 
 	if (devinfo->bus_pub.state != BCMFMAC_USB_STATE_UP) {
@@ -397,14 +338,14 @@ static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
 	if (test_and_set_bit(0, &devinfo->ctl_op))
 		return -EIO;
 
+	devinfo->ctl_completed = false;
 	err = brcmf_usb_recv_ctl(devinfo, buf, len);
 	if (err) {
 		brcmf_dbg(ERROR, "fail %d bytes: %d\n", err, len);
+		clear_bit(0, &devinfo->ctl_op);
 		return err;
 	}
-	devinfo->ctl_completed = false;
-	timeout = brcmf_usb_ioctl_resp_wait(devinfo, &devinfo->ctl_completed,
-					    &pending);
+	timeout = brcmf_usb_ioctl_resp_wait(devinfo);
 	err = devinfo->ctl_urb_status;
 	clear_bit(0, &devinfo->ctl_op);
 	if (!timeout) {
@@ -418,7 +359,7 @@ static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
 }
 
 static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
-					  struct list_head *q)
+					  struct list_head *q, int *counter)
 {
 	unsigned long flags;
 	struct brcmf_usbreq  *req;
@@ -429,17 +370,22 @@ static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
 	}
 	req = list_entry(q->next, struct brcmf_usbreq, list);
 	list_del_init(q->next);
+	if (counter)
+		(*counter)--;
 	spin_unlock_irqrestore(&devinfo->qlock, flags);
 	return req;
 
 }
 
 static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
-			  struct list_head *q, struct brcmf_usbreq *req)
+			  struct list_head *q, struct brcmf_usbreq *req,
+			  int *counter)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&devinfo->qlock, flags);
 	list_add_tail(&req->list, q);
+	if (counter)
+		(*counter)++;
 	spin_unlock_irqrestore(&devinfo->qlock, flags);
 }
 
@@ -519,10 +465,16 @@ static void brcmf_usb_tx_complete(struct urb *urb)
 	else
 		devinfo->bus_pub.bus->dstats.tx_errors++;
 
-	dev_kfree_skb(req->skb);
-	req->skb = NULL;
-	brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req);
+	brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
 
+	brcmu_pkt_buf_free_skb(req->skb);
+	req->skb = NULL;
+	brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
+	if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
+		devinfo->tx_flowblock) {
+		brcmf_txflowblock(devinfo->dev, false);
+		devinfo->tx_flowblock = false;
+	}
 }
 
 static void brcmf_usb_rx_complete(struct urb *urb)
@@ -540,8 +492,8 @@ static void brcmf_usb_rx_complete(struct urb *urb)
 		devinfo->bus_pub.bus->dstats.rx_packets++;
 	} else {
 		devinfo->bus_pub.bus->dstats.rx_errors++;
-		dev_kfree_skb(skb);
-		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req);
+		brcmu_pkt_buf_free_skb(skb);
+		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
 		return;
 	}
 
@@ -551,12 +503,12 @@ static void brcmf_usb_rx_complete(struct urb *urb)
 			brcmf_dbg(ERROR, "rx protocol error\n");
 			brcmu_pkt_buf_free_skb(skb);
 			devinfo->bus_pub.bus->dstats.rx_errors++;
-		} else {
+		} else
 			brcmf_rx_packet(devinfo->dev, ifidx, skb);
-			brcmf_usb_rx_refill(devinfo, req);
-		}
+		brcmf_usb_rx_refill(devinfo, req);
 	} else {
-		dev_kfree_skb(skb);
+		brcmu_pkt_buf_free_skb(skb);
+		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
 	}
 	return;
 
@@ -573,7 +525,7 @@ static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
 
 	skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
 	if (!skb) {
-		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req);
+		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
 		return;
 	}
 	req->skb = skb;
@@ -581,16 +533,15 @@ static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
 	usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
 			  skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
 			  req);
-	req->urb->transfer_flags |= URB_ZERO_PACKET;
 	req->devinfo = devinfo;
+	brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
 
 	ret = usb_submit_urb(req->urb, GFP_ATOMIC);
-	if (ret == 0) {
-		brcmf_usb_enq(devinfo, &devinfo->rx_postq, req);
-	} else {
-		dev_kfree_skb(req->skb);
+	if (ret) {
+		brcmf_usb_del_fromq(devinfo, req);
+		brcmu_pkt_buf_free_skb(req->skb);
 		req->skb = NULL;
-		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req);
+		brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
 	}
 	return;
 }
@@ -603,7 +554,7 @@ static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
 		brcmf_dbg(ERROR, "bus is not up\n");
 		return;
 	}
-	while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq)) != NULL)
+	while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
 		brcmf_usb_rx_refill(devinfo, req);
 }
 
@@ -681,27 +632,34 @@ static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
 		return -EIO;
 	}
 
-	req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq);
+	req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
+					&devinfo->tx_freecount);
 	if (!req) {
+		brcmu_pkt_buf_free_skb(skb);
 		brcmf_dbg(ERROR, "no req to send\n");
 		return -ENOMEM;
 	}
-	if (!req->urb) {
-		brcmf_dbg(ERROR, "no urb for req %p\n", req);
-		return -ENOBUFS;
-	}
 
 	req->skb = skb;
 	req->devinfo = devinfo;
 	usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
 			  skb->data, skb->len, brcmf_usb_tx_complete, req);
 	req->urb->transfer_flags |= URB_ZERO_PACKET;
+	brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
 	ret = usb_submit_urb(req->urb, GFP_ATOMIC);
-	if (!ret) {
-		brcmf_usb_enq(devinfo, &devinfo->tx_postq, req);
-	} else {
+	if (ret) {
+		brcmf_dbg(ERROR, "brcmf_usb_tx usb_submit_urb FAILED\n");
+		brcmf_usb_del_fromq(devinfo, req);
+		brcmu_pkt_buf_free_skb(req->skb);
 		req->skb = NULL;
-		brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req);
+		brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
+						&devinfo->tx_freecount);
+	} else {
+		if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
+			!devinfo->tx_flowblock) {
+			brcmf_txflowblock(dev, true);
+			devinfo->tx_flowblock = true;
+		}
 	}
 
 	return ret;
@@ -1112,10 +1070,14 @@ static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
 static bool brcmf_usb_chip_support(int chipid, int chiprev)
 {
 	switch(chipid) {
+	case 43143:
+		return true;
 	case 43235:
 	case 43236:
 	case 43238:
 		return (chiprev == 3);
+	case 43242:
+		return true;
 	default:
 		break;
 	}
@@ -1154,17 +1116,10 @@ brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
 }
 
 
-static void brcmf_usb_detach(const struct brcmf_usbdev *bus_pub)
+static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
 {
-	struct brcmf_usbdev_info *devinfo =
-		(struct brcmf_usbdev_info *)bus_pub;
-
 	brcmf_dbg(TRACE, "devinfo %p\n", devinfo);
 
-	/* store the image globally */
-	g_image.data = devinfo->image;
-	g_image.len = devinfo->image_len;
-
 	/* free the URBS */
 	brcmf_usb_free_q(&devinfo->rx_freeq, false);
 	brcmf_usb_free_q(&devinfo->tx_freeq, false);
@@ -1175,7 +1130,6 @@ static void brcmf_usb_detach(const struct brcmf_usbdev *bus_pub)
 
 	kfree(devinfo->tx_reqs);
 	kfree(devinfo->rx_reqs);
-	kfree(devinfo);
 }
 
 #define TRX_MAGIC       0x30524448      /* "HDR0" */
@@ -1217,19 +1171,34 @@ static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
 {
 	s8 *fwname;
 	const struct firmware *fw;
+	struct brcmf_usb_image *fw_image;
 	int err;
 
-	devinfo->image = g_image.data;
-	devinfo->image_len = g_image.len;
-
-	/*
-	 * if we have an image we can leave here.
-	 */
-	if (devinfo->image)
-		return 0;
-
-	fwname = BRCMF_USB_43236_FW_NAME;
+	switch (devinfo->bus_pub.devid) {
+	case 43143:
+		fwname = BRCMF_USB_43143_FW_NAME;
+		break;
+	case 43235:
+	case 43236:
+	case 43238:
+		fwname = BRCMF_USB_43236_FW_NAME;
+		break;
+	case 43242:
+		fwname = BRCMF_USB_43242_FW_NAME;
+		break;
+	default:
+		return -EINVAL;
+		break;
+	}
 
+	list_for_each_entry(fw_image, &fw_image_list, list) {
+		if (fw_image->fwname == fwname) {
+			devinfo->image = fw_image->image;
+			devinfo->image_len = fw_image->image_len;
+			return 0;
+		}
+	}
+	/* fw image not yet loaded. Load it now and add to list */
 	err = request_firmware(&fw, fwname, devinfo->dev);
 	if (!fw) {
 		brcmf_dbg(ERROR, "fail to request firmware %s\n", fwname);
@@ -1240,27 +1209,32 @@ static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
 		return -EINVAL;
 	}
 
-	devinfo->image = vmalloc(fw->size); /* plus nvram */
-	if (!devinfo->image)
+	fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
+	if (!fw_image)
+		return -ENOMEM;
+	INIT_LIST_HEAD(&fw_image->list);
+	list_add_tail(&fw_image->list, &fw_image_list);
+	fw_image->fwname = fwname;
+	fw_image->image = vmalloc(fw->size);
+	if (!fw_image->image)
 		return -ENOMEM;
 
-	memcpy(devinfo->image, fw->data, fw->size);
-	devinfo->image_len = fw->size;
+	memcpy(fw_image->image, fw->data, fw->size);
+	fw_image->image_len = fw->size;
 
 	release_firmware(fw);
+
+	devinfo->image = fw_image->image;
+	devinfo->image_len = fw_image->image_len;
+
 	return 0;
 }
 
 
 static
-struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
+struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
+				      int nrxq, int ntxq)
 {
-	struct brcmf_usbdev_info *devinfo;
-
-	devinfo = kzalloc(sizeof(struct brcmf_usbdev_info), GFP_ATOMIC);
-	if (devinfo == NULL)
-		return NULL;
-
 	devinfo->bus_pub.nrxq = nrxq;
 	devinfo->rx_low_watermark = nrxq / 2;
 	devinfo->bus_pub.devinfo = devinfo;
@@ -1269,18 +1243,6 @@ struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
 	/* flow control when too many tx urbs posted */
 	devinfo->tx_low_watermark = ntxq / 4;
 	devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
-	devinfo->dev = dev;
-	devinfo->usbdev = usbdev_probe_info.usb;
-	devinfo->tx_pipe = usbdev_probe_info.tx_pipe;
-	devinfo->rx_pipe = usbdev_probe_info.rx_pipe;
-	devinfo->rx_pipe2 = usbdev_probe_info.rx_pipe2;
-	devinfo->intr_pipe = usbdev_probe_info.intr_pipe;
-
-	devinfo->interval = usbdev_probe_info.interval;
-	devinfo->intr_size = usbdev_probe_info.intr_size;
-
-	memcpy(&devinfo->probe_info, &usbdev_probe_info,
-		sizeof(struct brcmf_usb_probe_info));
 	devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
 
 	/* Initialize other structure content */
@@ -1295,6 +1257,8 @@ struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
 	INIT_LIST_HEAD(&devinfo->tx_freeq);
 	INIT_LIST_HEAD(&devinfo->tx_postq);
 
+	devinfo->tx_flowblock = false;
+
 	devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
 	if (!devinfo->rx_reqs)
 		goto error;
@@ -1302,6 +1266,7 @@ struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
 	devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
 	if (!devinfo->tx_reqs)
 		goto error;
+	devinfo->tx_freecount = ntxq;
 
 	devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!devinfo->intr_urb) {
@@ -1313,8 +1278,6 @@ struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
 		brcmf_dbg(ERROR, "usb_alloc_urb (ctl) failed\n");
 		goto error;
 	}
-	devinfo->rxctl_deferrespok = 0;
-
 	devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!devinfo->bulk_urb) {
 		brcmf_dbg(ERROR, "usb_alloc_urb (bulk) failed\n");
@@ -1336,23 +1299,21 @@ struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
 
 error:
 	brcmf_dbg(ERROR, "failed!\n");
-	brcmf_usb_detach(&devinfo->bus_pub);
+	brcmf_usb_detach(devinfo);
 	return NULL;
 }
 
-static int brcmf_usb_probe_cb(struct device *dev, const char *desc,
-				u32 bustype, u32 hdrlen)
+static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo,
+			      const char *desc,	u32 bustype, u32 hdrlen)
 {
 	struct brcmf_bus *bus = NULL;
 	struct brcmf_usbdev *bus_pub = NULL;
 	int ret;
+	struct device *dev = devinfo->dev;
 
-
-	bus_pub = brcmf_usb_attach(BRCMF_USB_NRXQ, BRCMF_USB_NTXQ, dev);
-	if (!bus_pub) {
-		ret = -ENODEV;
-		goto fail;
-	}
+	bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
+	if (!bus_pub)
+		return -ENODEV;
 
 	bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
 	if (!bus) {
@@ -1387,23 +1348,21 @@ static int brcmf_usb_probe_cb(struct device *dev, const char *desc,
 	return 0;
 fail:
 	/* Release resources in reverse order */
-	if (bus_pub)
-		brcmf_usb_detach(bus_pub);
 	kfree(bus);
+	brcmf_usb_detach(devinfo);
 	return ret;
 }
 
 static void
-brcmf_usb_disconnect_cb(struct brcmf_usbdev *bus_pub)
+brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
 {
-	if (!bus_pub)
+	if (!devinfo)
 		return;
-	brcmf_dbg(TRACE, "enter: bus_pub %p\n", bus_pub);
-
-	brcmf_detach(bus_pub->devinfo->dev);
-	kfree(bus_pub->bus);
-	brcmf_usb_detach(bus_pub);
+	brcmf_dbg(TRACE, "enter: bus_pub %p\n", devinfo);
 
+	brcmf_detach(devinfo->dev);
+	kfree(devinfo->bus_pub.bus);
+	brcmf_usb_detach(devinfo);
 }
 
 static int
@@ -1415,18 +1374,18 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	struct usb_device *usb = interface_to_usbdev(intf);
 	int num_of_eps;
 	u8 endpoint_num;
+	struct brcmf_usbdev_info *devinfo;
 
 	brcmf_dbg(TRACE, "enter\n");
 
-	usbdev_probe_info.usb = usb;
-	usbdev_probe_info.intf = intf;
+	devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
+	if (devinfo == NULL)
+		return -ENOMEM;
 
-	if (id != NULL) {
-		usbdev_probe_info.vid = id->idVendor;
-		usbdev_probe_info.pid = id->idProduct;
-	}
+	devinfo->usbdev = usb;
+	devinfo->dev = &usb->dev;
 
-	usb_set_intfdata(intf, &usbdev_probe_info);
+	usb_set_intfdata(intf, devinfo);
 
 	/* Check that the device supports only one configuration */
 	if (usb->descriptor.bNumConfigurations != 1) {
@@ -1475,11 +1434,11 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	}
 
 	endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-	usbdev_probe_info.intr_pipe = usb_rcvintpipe(usb, endpoint_num);
+	devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
 
-	usbdev_probe_info.rx_pipe = 0;
-	usbdev_probe_info.rx_pipe2 = 0;
-	usbdev_probe_info.tx_pipe = 0;
+	devinfo->rx_pipe = 0;
+	devinfo->rx_pipe2 = 0;
+	devinfo->tx_pipe = 0;
 	num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1;
 
 	/* Check data endpoints and get pipes */
@@ -1496,35 +1455,33 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 			       USB_ENDPOINT_NUMBER_MASK;
 		if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
 			== USB_DIR_IN) {
-			if (!usbdev_probe_info.rx_pipe) {
-				usbdev_probe_info.rx_pipe =
+			if (!devinfo->rx_pipe) {
+				devinfo->rx_pipe =
 					usb_rcvbulkpipe(usb, endpoint_num);
 			} else {
-				usbdev_probe_info.rx_pipe2 =
+				devinfo->rx_pipe2 =
 					usb_rcvbulkpipe(usb, endpoint_num);
 			}
 		} else {
-			usbdev_probe_info.tx_pipe =
-					usb_sndbulkpipe(usb, endpoint_num);
+			devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num);
 		}
 	}
 
 	/* Allocate interrupt URB and data buffer */
 	/* RNDIS says 8-byte intr, our old drivers used 4-byte */
 	if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
-		usbdev_probe_info.intr_size = 8;
+		devinfo->intr_size = 8;
 	else
-		usbdev_probe_info.intr_size = 4;
+		devinfo->intr_size = 4;
 
-	usbdev_probe_info.interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
+	devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
 
-	usbdev_probe_info.device_speed = usb->speed;
 	if (usb->speed == USB_SPEED_HIGH)
 		brcmf_dbg(INFO, "Broadcom high speed USB wireless device detected\n");
 	else
 		brcmf_dbg(INFO, "Broadcom full speed USB wireless device detected\n");
 
-	ret = brcmf_usb_probe_cb(&usb->dev, "", USB_BUS, 0);
+	ret = brcmf_usb_probe_cb(devinfo, "", USB_BUS, 0);
 	if (ret)
 		goto fail;
 
@@ -1533,6 +1490,7 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 
 fail:
 	brcmf_dbg(ERROR, "failed with errno %d\n", ret);
+	kfree(devinfo);
 	usb_set_intfdata(intf, NULL);
 	return ret;
 
@@ -1541,11 +1499,12 @@ fail:
 static void
 brcmf_usb_disconnect(struct usb_interface *intf)
 {
-	struct usb_device *usb = interface_to_usbdev(intf);
+	struct brcmf_usbdev_info *devinfo;
 
 	brcmf_dbg(TRACE, "enter\n");
-	brcmf_usb_disconnect_cb(brcmf_usb_get_buspub(&usb->dev));
-	usb_set_intfdata(intf, NULL);
+	devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
+	brcmf_usb_disconnect_cb(devinfo);
+	kfree(devinfo);
 }
 
 /*
@@ -1577,17 +1536,23 @@ static int brcmf_usb_resume(struct usb_interface *intf)
 }
 
 #define BRCMF_USB_VENDOR_ID_BROADCOM	0x0a5c
+#define BRCMF_USB_DEVICE_ID_43143	0xbd1e
 #define BRCMF_USB_DEVICE_ID_43236	0xbd17
+#define BRCMF_USB_DEVICE_ID_43242	0xbd1f
 #define BRCMF_USB_DEVICE_ID_BCMFW	0x0bdc
 
 static struct usb_device_id brcmf_usb_devid_table[] = {
+	{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) },
 	{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) },
+	{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) },
 	/* special entry for device with firmware loaded and running */
 	{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
+MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
 MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
+MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME);
 
 /* TODO: suspend and resume entries */
 static struct usb_driver brcmf_usbdrvr = {
@@ -1601,15 +1566,25 @@ static struct usb_driver brcmf_usbdrvr = {
 	.disable_hub_initiated_lpm = 1,
 };
 
+static void brcmf_release_fw(struct list_head *q)
+{
+	struct brcmf_usb_image *fw_image, *next;
+
+	list_for_each_entry_safe(fw_image, next, q, list) {
+		vfree(fw_image->image);
+		list_del_init(&fw_image->list);
+	}
+}
+
+
 void brcmf_usb_exit(void)
 {
 	usb_deregister(&brcmf_usbdrvr);
-	vfree(g_image.data);
-	g_image.data = NULL;
-	g_image.len = 0;
+	brcmf_release_fw(&fw_image_list);
 }
 
 void brcmf_usb_init(void)
 {
+	INIT_LIST_HEAD(&fw_image_list);
 	usb_register(&brcmf_usbdrvr);
 }
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 28c5fbb4af2..c1abaa6db59 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -28,6 +28,7 @@
 #include <linux/ieee80211.h>
 #include <linux/uaccess.h>
 #include <net/cfg80211.h>
+#include <net/netlink.h>
 
 #include <brcmu_utils.h>
 #include <defs.h>
@@ -35,6 +36,58 @@
 #include "dhd.h"
 #include "wl_cfg80211.h"
 
+#define BRCMF_SCAN_IE_LEN_MAX		2048
+#define BRCMF_PNO_VERSION		2
+#define BRCMF_PNO_TIME			30
+#define BRCMF_PNO_REPEAT		4
+#define BRCMF_PNO_FREQ_EXPO_MAX		3
+#define BRCMF_PNO_MAX_PFN_COUNT		16
+#define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT	6
+#define BRCMF_PNO_HIDDEN_BIT		2
+#define BRCMF_PNO_WPA_AUTH_ANY		0xFFFFFFFF
+#define BRCMF_PNO_SCAN_COMPLETE		1
+#define BRCMF_PNO_SCAN_INCOMPLETE	0
+
+#define TLV_LEN_OFF			1	/* length offset */
+#define TLV_HDR_LEN			2	/* header length */
+#define TLV_BODY_OFF			2	/* body offset */
+#define TLV_OUI_LEN			3	/* oui id length */
+#define WPA_OUI				"\x00\x50\xF2"	/* WPA OUI */
+#define WPA_OUI_TYPE			1
+#define RSN_OUI				"\x00\x0F\xAC"	/* RSN OUI */
+#define	WME_OUI_TYPE			2
+
+#define VS_IE_FIXED_HDR_LEN		6
+#define WPA_IE_VERSION_LEN		2
+#define WPA_IE_MIN_OUI_LEN		4
+#define WPA_IE_SUITE_COUNT_LEN		2
+
+#define WPA_CIPHER_NONE			0	/* None */
+#define WPA_CIPHER_WEP_40		1	/* WEP (40-bit) */
+#define WPA_CIPHER_TKIP			2	/* TKIP: default for WPA */
+#define WPA_CIPHER_AES_CCM		4	/* AES (CCM) */
+#define WPA_CIPHER_WEP_104		5	/* WEP (104-bit) */
+
+#define RSN_AKM_NONE			0	/* None (IBSS) */
+#define RSN_AKM_UNSPECIFIED		1	/* Over 802.1x */
+#define RSN_AKM_PSK			2	/* Pre-shared Key */
+#define RSN_CAP_LEN			2	/* Length of RSN capabilities */
+#define RSN_CAP_PTK_REPLAY_CNTR_MASK	0x000C
+
+#define VNDR_IE_CMD_LEN			4	/* length of the set command
+						 * string :"add", "del" (+ NUL)
+						 */
+#define VNDR_IE_COUNT_OFFSET		4
+#define VNDR_IE_PKTFLAG_OFFSET		8
+#define VNDR_IE_VSIE_OFFSET		12
+#define VNDR_IE_HDR_SIZE		12
+#define VNDR_IE_BEACON_FLAG		0x1
+#define VNDR_IE_PRBRSP_FLAG		0x2
+#define MAX_VNDR_IE_NUMBER		5
+
+#define	DOT11_MGMT_HDR_LEN		24	/* d11 management header len */
+#define	DOT11_BCN_PRB_FIXED_LEN		12	/* beacon/probe fixed length */
+
 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
 	(sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
 
@@ -42,33 +95,12 @@ static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255};
 
 static u32 brcmf_dbg_level = WL_DBG_ERR;
 
-static void brcmf_set_drvdata(struct brcmf_cfg80211_dev *dev, void *data)
-{
-	dev->driver_data = data;
-}
-
-static void *brcmf_get_drvdata(struct brcmf_cfg80211_dev *dev)
-{
-	void *data = NULL;
-
-	if (dev)
-		data = dev->driver_data;
-	return data;
-}
-
-static
-struct brcmf_cfg80211_priv *brcmf_priv_get(struct brcmf_cfg80211_dev *cfg_dev)
-{
-	struct brcmf_cfg80211_iface *ci = brcmf_get_drvdata(cfg_dev);
-	return ci->cfg_priv;
-}
-
 static bool check_sys_up(struct wiphy *wiphy)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	if (!test_bit(WL_STATUS_READY, &cfg->status)) {
 		WL_INFO("device is not ready : status (%d)\n",
-			(int)cfg_priv->status);
+			(int)cfg->status);
 		return false;
 	}
 	return true;
@@ -256,6 +288,25 @@ struct brcmf_tlv {
 	u8 data[1];
 };
 
+/* Vendor specific ie. id = 221, oui and type defines exact ie */
+struct brcmf_vs_tlv {
+	u8 id;
+	u8 len;
+	u8 oui[3];
+	u8 oui_type;
+};
+
+struct parsed_vndr_ie_info {
+	u8 *ie_ptr;
+	u32 ie_len;	/* total length including id & length field */
+	struct brcmf_vs_tlv vndrie;
+};
+
+struct parsed_vndr_ies {
+	u32 count;
+	struct parsed_vndr_ie_info ie_info[MAX_VNDR_IE_NUMBER];
+};
+
 /* Quarter dBm units to mW
  * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
  * Table is offset so the last entry is largest mW value that fits in
@@ -353,6 +404,44 @@ brcmf_exec_dcmd_u32(struct net_device *ndev, u32 cmd, u32 *par)
 	return err;
 }
 
+static s32
+brcmf_dev_iovar_setbuf_bsscfg(struct net_device *ndev, s8 *name,
+			      void *param, s32 paramlen,
+			      void *buf, s32 buflen, s32 bssidx)
+{
+	s32 err = -ENOMEM;
+	u32 len;
+
+	len = brcmf_c_mkiovar_bsscfg(name, param, paramlen,
+				     buf, buflen, bssidx);
+	BUG_ON(!len);
+	if (len > 0)
+		err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, buf, len);
+	if (err)
+		WL_ERR("error (%d)\n", err);
+
+	return err;
+}
+
+static s32
+brcmf_dev_iovar_getbuf_bsscfg(struct net_device *ndev, s8 *name,
+			      void *param, s32 paramlen,
+			      void *buf, s32 buflen, s32 bssidx)
+{
+	s32 err = -ENOMEM;
+	u32 len;
+
+	len = brcmf_c_mkiovar_bsscfg(name, param, paramlen,
+				     buf, buflen, bssidx);
+	BUG_ON(!len);
+	if (len > 0)
+		err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, buf, len);
+	if (err)
+		WL_ERR("error (%d)\n", err);
+
+	return err;
+}
+
 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
 				 struct brcmf_wsec_key_le *key_le)
 {
@@ -367,16 +456,22 @@ static void convert_key_from_CPU(struct brcmf_wsec_key *key,
 	memcpy(key_le->ea, key->ea, sizeof(key->ea));
 }
 
-static int send_key_to_dongle(struct net_device *ndev,
-			      struct brcmf_wsec_key *key)
+static int
+send_key_to_dongle(struct brcmf_cfg80211_info *cfg, s32 bssidx,
+		   struct net_device *ndev, struct brcmf_wsec_key *key)
 {
 	int err;
 	struct brcmf_wsec_key_le key_le;
 
 	convert_key_from_CPU(key, &key_le);
-	err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le, sizeof(key_le));
+
+	err  = brcmf_dev_iovar_setbuf_bsscfg(ndev, "wsec_key", &key_le,
+					     sizeof(key_le),
+					     cfg->extra_buf,
+					     WL_EXTRA_BUF_MAX, bssidx);
+
 	if (err)
-		WL_ERR("WLC_SET_KEY error (%d)\n", err);
+		WL_ERR("wsec_key error (%d)\n", err);
 	return err;
 }
 
@@ -385,14 +480,12 @@ brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
 			 enum nl80211_iftype type, u32 *flags,
 			 struct vif_params *params)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	struct wireless_dev *wdev;
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	s32 infra = 0;
+	s32 ap = 0;
 	s32 err = 0;
 
-	WL_TRACE("Enter\n");
-	if (!check_sys_up(wiphy))
-		return -EIO;
+	WL_TRACE("Enter, ndev=%p, type=%d\n", ndev, type);
 
 	switch (type) {
 	case NL80211_IFTYPE_MONITOR:
@@ -401,29 +494,44 @@ brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
 		       type);
 		return -EOPNOTSUPP;
 	case NL80211_IFTYPE_ADHOC:
-		cfg_priv->conf->mode = WL_MODE_IBSS;
+		cfg->conf->mode = WL_MODE_IBSS;
 		infra = 0;
 		break;
 	case NL80211_IFTYPE_STATION:
-		cfg_priv->conf->mode = WL_MODE_BSS;
+		cfg->conf->mode = WL_MODE_BSS;
 		infra = 1;
 		break;
+	case NL80211_IFTYPE_AP:
+		cfg->conf->mode = WL_MODE_AP;
+		ap = 1;
+		break;
 	default:
 		err = -EINVAL;
 		goto done;
 	}
 
-	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra);
-	if (err) {
-		WL_ERR("WLC_SET_INFRA error (%d)\n", err);
-		err = -EAGAIN;
+	if (ap) {
+		set_bit(WL_STATUS_AP_CREATING, &cfg->status);
+		if (!cfg->ap_info)
+			cfg->ap_info = kzalloc(sizeof(*cfg->ap_info),
+					       GFP_KERNEL);
+		if (!cfg->ap_info) {
+			err = -ENOMEM;
+			goto done;
+		}
+		WL_INFO("IF Type = AP\n");
 	} else {
-		wdev = ndev->ieee80211_ptr;
-		wdev->iftype = type;
+		err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra);
+		if (err) {
+			WL_ERR("WLC_SET_INFRA error (%d)\n", err);
+			err = -EAGAIN;
+			goto done;
+		}
+		WL_INFO("IF Type = %s\n",
+			(cfg->conf->mode == WL_MODE_IBSS) ?
+			"Adhoc" : "Infra");
 	}
-
-	WL_INFO("IF Type = %s\n",
-		(cfg_priv->conf->mode == WL_MODE_IBSS) ? "Adhoc" : "Infra");
+	ndev->ieee80211_ptr->iftype = type;
 
 done:
 	WL_TRACE("Exit\n");
@@ -474,12 +582,55 @@ brcmf_dev_intvar_get(struct net_device *ndev, s8 *name, s32 *retval)
 	return err;
 }
 
+static s32
+brcmf_dev_intvar_set_bsscfg(struct net_device *ndev, s8 *name, u32 val,
+			    s32 bssidx)
+{
+	s8 buf[BRCMF_DCMD_SMLEN];
+	__le32 val_le;
+
+	val_le = cpu_to_le32(val);
+
+	return brcmf_dev_iovar_setbuf_bsscfg(ndev, name, &val_le,
+					     sizeof(val_le), buf, sizeof(buf),
+					     bssidx);
+}
+
+static s32
+brcmf_dev_intvar_get_bsscfg(struct net_device *ndev, s8 *name, s32 *val,
+			    s32 bssidx)
+{
+	s8 buf[BRCMF_DCMD_SMLEN];
+	s32 err;
+	__le32 val_le;
+
+	memset(buf, 0, sizeof(buf));
+	err = brcmf_dev_iovar_getbuf_bsscfg(ndev, name, val, sizeof(*val), buf,
+					    sizeof(buf), bssidx);
+	if (err == 0) {
+		memcpy(&val_le, buf, sizeof(val_le));
+		*val = le32_to_cpu(val_le);
+	}
+	return err;
+}
+
+
+/*
+ * For now brcmf_find_bssidx will return 0. Once p2p gets implemented this
+ * should return the ndev matching bssidx.
+ */
+static s32
+brcmf_find_bssidx(struct brcmf_cfg80211_info *cfg, struct net_device *ndev)
+{
+	return 0;
+}
+
 static void brcmf_set_mpc(struct net_device *ndev, int mpc)
 {
 	s32 err = 0;
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
 
-	if (test_bit(WL_STATUS_READY, &cfg_priv->status)) {
+	if (test_bit(WL_STATUS_READY, &cfg->status)) {
 		err = brcmf_dev_intvar_set(ndev, "mpc", mpc);
 		if (err) {
 			WL_ERR("fail to set mpc\n");
@@ -489,8 +640,8 @@ static void brcmf_set_mpc(struct net_device *ndev, int mpc)
 	}
 }
 
-static void wl_iscan_prep(struct brcmf_scan_params_le *params_le,
-			  struct brcmf_ssid *ssid)
+static void brcmf_iscan_prep(struct brcmf_scan_params_le *params_le,
+			     struct brcmf_ssid *ssid)
 {
 	memcpy(params_le->bssid, ether_bcast, ETH_ALEN);
 	params_le->bss_type = DOT11_BSSTYPE_ANY;
@@ -500,8 +651,10 @@ static void wl_iscan_prep(struct brcmf_scan_params_le *params_le,
 	params_le->active_time = cpu_to_le32(-1);
 	params_le->passive_time = cpu_to_le32(-1);
 	params_le->home_time = cpu_to_le32(-1);
-	if (ssid && ssid->SSID_len)
-		memcpy(&params_le->ssid_le, ssid, sizeof(struct brcmf_ssid));
+	if (ssid && ssid->SSID_len) {
+		params_le->ssid_le.SSID_len = cpu_to_le32(ssid->SSID_len);
+		memcpy(&params_le->ssid_le.SSID, ssid->SSID, ssid->SSID_len);
+	}
 }
 
 static s32
@@ -544,7 +697,7 @@ brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan,
 		return -ENOMEM;
 	BUG_ON(params_size >= BRCMF_DCMD_SMLEN);
 
-	wl_iscan_prep(&params->params_le, ssid);
+	brcmf_iscan_prep(&params->params_le, ssid);
 
 	params->version = cpu_to_le32(BRCMF_ISCAN_REQ_VERSION);
 	params->action = cpu_to_le16(action);
@@ -563,10 +716,10 @@ brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan,
 	return err;
 }
 
-static s32 brcmf_do_iscan(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_do_iscan(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 	struct brcmf_ssid ssid;
 	__le32 passive_scan;
 	s32 err = 0;
@@ -576,19 +729,19 @@ static s32 brcmf_do_iscan(struct brcmf_cfg80211_priv *cfg_priv)
 
 	iscan->state = WL_ISCAN_STATE_SCANING;
 
-	passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1);
-	err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_SET_PASSIVE_SCAN,
+	passive_scan = cfg->active_scan ? 0 : cpu_to_le32(1);
+	err = brcmf_exec_dcmd(cfg_to_ndev(cfg), BRCMF_C_SET_PASSIVE_SCAN,
 			&passive_scan, sizeof(passive_scan));
 	if (err) {
 		WL_ERR("error (%d)\n", err);
 		return err;
 	}
 	brcmf_set_mpc(ndev, 0);
-	cfg_priv->iscan_kickstart = true;
+	cfg->iscan_kickstart = true;
 	err = brcmf_run_iscan(iscan, &ssid, BRCMF_SCAN_ACTION_START);
 	if (err) {
 		brcmf_set_mpc(ndev, 1);
-		cfg_priv->iscan_kickstart = false;
+		cfg->iscan_kickstart = false;
 		return err;
 	}
 	mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
@@ -597,31 +750,31 @@ static s32 brcmf_do_iscan(struct brcmf_cfg80211_priv *cfg_priv)
 }
 
 static s32
-__brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
-		   struct cfg80211_scan_request *request,
-		   struct cfg80211_ssid *this_ssid)
+brcmf_cfg80211_iscan(struct wiphy *wiphy, struct net_device *ndev,
+		     struct cfg80211_scan_request *request,
+		     struct cfg80211_ssid *this_ssid)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
 	struct cfg80211_ssid *ssids;
-	struct brcmf_cfg80211_scan_req *sr = cfg_priv->scan_req_int;
+	struct brcmf_cfg80211_scan_req *sr = cfg->scan_req_int;
 	__le32 passive_scan;
 	bool iscan_req;
 	bool spec_scan;
 	s32 err = 0;
 	u32 SSID_len;
 
-	if (test_bit(WL_STATUS_SCANNING, &cfg_priv->status)) {
-		WL_ERR("Scanning already : status (%lu)\n", cfg_priv->status);
+	if (test_bit(WL_STATUS_SCANNING, &cfg->status)) {
+		WL_ERR("Scanning already : status (%lu)\n", cfg->status);
 		return -EAGAIN;
 	}
-	if (test_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status)) {
+	if (test_bit(WL_STATUS_SCAN_ABORTING, &cfg->status)) {
 		WL_ERR("Scanning being aborted : status (%lu)\n",
-		       cfg_priv->status);
+		       cfg->status);
 		return -EAGAIN;
 	}
-	if (test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) {
+	if (test_bit(WL_STATUS_CONNECTING, &cfg->status)) {
 		WL_ERR("Connecting : status (%lu)\n",
-		       cfg_priv->status);
+		       cfg->status);
 		return -EAGAIN;
 	}
 
@@ -630,7 +783,7 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 	if (request) {
 		/* scan bss */
 		ssids = request->ssids;
-		if (cfg_priv->iscan_on && (!ssids || !ssids->ssid_len))
+		if (cfg->iscan_on && (!ssids || !ssids->ssid_len))
 			iscan_req = true;
 	} else {
 		/* scan in ibss */
@@ -638,10 +791,10 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 		ssids = this_ssid;
 	}
 
-	cfg_priv->scan_request = request;
-	set_bit(WL_STATUS_SCANNING, &cfg_priv->status);
+	cfg->scan_request = request;
+	set_bit(WL_STATUS_SCANNING, &cfg->status);
 	if (iscan_req) {
-		err = brcmf_do_iscan(cfg_priv);
+		err = brcmf_do_iscan(cfg);
 		if (!err)
 			return err;
 		else
@@ -660,7 +813,7 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 			WL_SCAN("Broadcast scan\n");
 		}
 
-		passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1);
+		passive_scan = cfg->active_scan ? 0 : cpu_to_le32(1);
 		err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_PASSIVE_SCAN,
 				&passive_scan, sizeof(passive_scan));
 		if (err) {
@@ -685,8 +838,346 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 	return 0;
 
 scan_out:
-	clear_bit(WL_STATUS_SCANNING, &cfg_priv->status);
-	cfg_priv->scan_request = NULL;
+	clear_bit(WL_STATUS_SCANNING, &cfg->status);
+	cfg->scan_request = NULL;
+	return err;
+}
+
+static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
+			     struct cfg80211_scan_request *request)
+{
+	u32 n_ssids;
+	u32 n_channels;
+	s32 i;
+	s32 offset;
+	u16 chanspec;
+	u16 channel;
+	struct ieee80211_channel *req_channel;
+	char *ptr;
+	struct brcmf_ssid_le ssid_le;
+
+	memcpy(params_le->bssid, ether_bcast, ETH_ALEN);
+	params_le->bss_type = DOT11_BSSTYPE_ANY;
+	params_le->scan_type = 0;
+	params_le->channel_num = 0;
+	params_le->nprobes = cpu_to_le32(-1);
+	params_le->active_time = cpu_to_le32(-1);
+	params_le->passive_time = cpu_to_le32(-1);
+	params_le->home_time = cpu_to_le32(-1);
+	memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
+
+	/* if request is null exit so it will be all channel broadcast scan */
+	if (!request)
+		return;
+
+	n_ssids = request->n_ssids;
+	n_channels = request->n_channels;
+	/* Copy channel array if applicable */
+	WL_SCAN("### List of channelspecs to scan ### %d\n", n_channels);
+	if (n_channels > 0) {
+		for (i = 0; i < n_channels; i++) {
+			chanspec = 0;
+			req_channel = request->channels[i];
+			channel = ieee80211_frequency_to_channel(
+					req_channel->center_freq);
+			if (req_channel->band == IEEE80211_BAND_2GHZ)
+				chanspec |= WL_CHANSPEC_BAND_2G;
+			else
+				chanspec |= WL_CHANSPEC_BAND_5G;
+
+			if (req_channel->flags & IEEE80211_CHAN_NO_HT40) {
+				chanspec |= WL_CHANSPEC_BW_20;
+				chanspec |= WL_CHANSPEC_CTL_SB_NONE;
+			} else {
+				chanspec |= WL_CHANSPEC_BW_40;
+				if (req_channel->flags &
+						IEEE80211_CHAN_NO_HT40PLUS)
+					chanspec |= WL_CHANSPEC_CTL_SB_LOWER;
+				else
+					chanspec |= WL_CHANSPEC_CTL_SB_UPPER;
+			}
+
+			chanspec |= (channel & WL_CHANSPEC_CHAN_MASK);
+			WL_SCAN("Chan : %d, Channel spec: %x\n",
+				channel, chanspec);
+			params_le->channel_list[i] = cpu_to_le16(chanspec);
+		}
+	} else {
+		WL_SCAN("Scanning all channels\n");
+	}
+	/* Copy ssid array if applicable */
+	WL_SCAN("### List of SSIDs to scan ### %d\n", n_ssids);
+	if (n_ssids > 0) {
+		offset = offsetof(struct brcmf_scan_params_le, channel_list) +
+				n_channels * sizeof(u16);
+		offset = roundup(offset, sizeof(u32));
+		ptr = (char *)params_le + offset;
+		for (i = 0; i < n_ssids; i++) {
+			memset(&ssid_le, 0, sizeof(ssid_le));
+			ssid_le.SSID_len =
+					cpu_to_le32(request->ssids[i].ssid_len);
+			memcpy(ssid_le.SSID, request->ssids[i].ssid,
+			       request->ssids[i].ssid_len);
+			if (!ssid_le.SSID_len)
+				WL_SCAN("%d: Broadcast scan\n", i);
+			else
+				WL_SCAN("%d: scan for  %s size =%d\n", i,
+					ssid_le.SSID, ssid_le.SSID_len);
+			memcpy(ptr, &ssid_le, sizeof(ssid_le));
+			ptr += sizeof(ssid_le);
+		}
+	} else {
+		WL_SCAN("Broadcast scan %p\n", request->ssids);
+		if ((request->ssids) && request->ssids->ssid_len) {
+			WL_SCAN("SSID %s len=%d\n", params_le->ssid_le.SSID,
+				request->ssids->ssid_len);
+			params_le->ssid_le.SSID_len =
+				cpu_to_le32(request->ssids->ssid_len);
+			memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
+				request->ssids->ssid_len);
+		}
+	}
+	/* Adding mask to channel numbers */
+	params_le->channel_num =
+		cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
+			(n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
+}
+
+static s32
+brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
+			    struct net_device *ndev,
+			    bool aborted, bool fw_abort)
+{
+	struct brcmf_scan_params_le params_le;
+	struct cfg80211_scan_request *scan_request;
+	s32 err = 0;
+
+	WL_SCAN("Enter\n");
+
+	/* clear scan request, because the FW abort can cause a second call */
+	/* to this functon and might cause a double cfg80211_scan_done      */
+	scan_request = cfg->scan_request;
+	cfg->scan_request = NULL;
+
+	if (timer_pending(&cfg->escan_timeout))
+		del_timer_sync(&cfg->escan_timeout);
+
+	if (fw_abort) {
+		/* Do a scan abort to stop the driver's scan engine */
+		WL_SCAN("ABORT scan in firmware\n");
+		memset(&params_le, 0, sizeof(params_le));
+		memcpy(params_le.bssid, ether_bcast, ETH_ALEN);
+		params_le.bss_type = DOT11_BSSTYPE_ANY;
+		params_le.scan_type = 0;
+		params_le.channel_num = cpu_to_le32(1);
+		params_le.nprobes = cpu_to_le32(1);
+		params_le.active_time = cpu_to_le32(-1);
+		params_le.passive_time = cpu_to_le32(-1);
+		params_le.home_time = cpu_to_le32(-1);
+		/* Scan is aborted by setting channel_list[0] to -1 */
+		params_le.channel_list[0] = cpu_to_le16(-1);
+		/* E-Scan (or anyother type) can be aborted by SCAN */
+		err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN, &params_le,
+			sizeof(params_le));
+		if (err)
+			WL_ERR("Scan abort  failed\n");
+	}
+	/*
+	 * e-scan can be initiated by scheduled scan
+	 * which takes precedence.
+	 */
+	if (cfg->sched_escan) {
+		WL_SCAN("scheduled scan completed\n");
+		cfg->sched_escan = false;
+		if (!aborted)
+			cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
+		brcmf_set_mpc(ndev, 1);
+	} else if (scan_request) {
+		WL_SCAN("ESCAN Completed scan: %s\n",
+				aborted ? "Aborted" : "Done");
+		cfg80211_scan_done(scan_request, aborted);
+		brcmf_set_mpc(ndev, 1);
+	}
+	if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg->status)) {
+		WL_ERR("Scan complete while device not scanning\n");
+		return -EPERM;
+	}
+
+	return err;
+}
+
+static s32
+brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct net_device *ndev,
+		struct cfg80211_scan_request *request, u16 action)
+{
+	s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
+			  offsetof(struct brcmf_escan_params_le, params_le);
+	struct brcmf_escan_params_le *params;
+	s32 err = 0;
+
+	WL_SCAN("E-SCAN START\n");
+
+	if (request != NULL) {
+		/* Allocate space for populating ssids in struct */
+		params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
+
+		/* Allocate space for populating ssids in struct */
+		params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
+	}
+
+	params = kzalloc(params_size, GFP_KERNEL);
+	if (!params) {
+		err = -ENOMEM;
+		goto exit;
+	}
+	BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
+	brcmf_escan_prep(&params->params_le, request);
+	params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
+	params->action = cpu_to_le16(action);
+	params->sync_id = cpu_to_le16(0x1234);
+
+	err = brcmf_dev_iovar_setbuf(ndev, "escan", params, params_size,
+			cfg->escan_ioctl_buf, BRCMF_DCMD_MEDLEN);
+	if (err) {
+		if (err == -EBUSY)
+			WL_INFO("system busy : escan canceled\n");
+		else
+			WL_ERR("error (%d)\n", err);
+	}
+
+	kfree(params);
+exit:
+	return err;
+}
+
+static s32
+brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
+	       struct net_device *ndev, struct cfg80211_scan_request *request)
+{
+	s32 err;
+	__le32 passive_scan;
+	struct brcmf_scan_results *results;
+
+	WL_SCAN("Enter\n");
+	cfg->escan_info.ndev = ndev;
+	cfg->escan_info.wiphy = wiphy;
+	cfg->escan_info.escan_state = WL_ESCAN_STATE_SCANNING;
+	passive_scan = cfg->active_scan ? 0 : cpu_to_le32(1);
+	err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_PASSIVE_SCAN,
+			&passive_scan, sizeof(passive_scan));
+	if (err) {
+		WL_ERR("error (%d)\n", err);
+		return err;
+	}
+	brcmf_set_mpc(ndev, 0);
+	results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
+	results->version = 0;
+	results->count = 0;
+	results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
+
+	err = brcmf_run_escan(cfg, ndev, request, WL_ESCAN_ACTION_START);
+	if (err)
+		brcmf_set_mpc(ndev, 1);
+	return err;
+}
+
+static s32
+brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
+		     struct cfg80211_scan_request *request,
+		     struct cfg80211_ssid *this_ssid)
+{
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct cfg80211_ssid *ssids;
+	struct brcmf_cfg80211_scan_req *sr = cfg->scan_req_int;
+	__le32 passive_scan;
+	bool escan_req;
+	bool spec_scan;
+	s32 err;
+	u32 SSID_len;
+
+	WL_SCAN("START ESCAN\n");
+
+	if (test_bit(WL_STATUS_SCANNING, &cfg->status)) {
+		WL_ERR("Scanning already : status (%lu)\n", cfg->status);
+		return -EAGAIN;
+	}
+	if (test_bit(WL_STATUS_SCAN_ABORTING, &cfg->status)) {
+		WL_ERR("Scanning being aborted : status (%lu)\n",
+		       cfg->status);
+		return -EAGAIN;
+	}
+	if (test_bit(WL_STATUS_CONNECTING, &cfg->status)) {
+		WL_ERR("Connecting : status (%lu)\n",
+		       cfg->status);
+		return -EAGAIN;
+	}
+
+	/* Arm scan timeout timer */
+	mod_timer(&cfg->escan_timeout, jiffies +
+			WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
+
+	escan_req = false;
+	if (request) {
+		/* scan bss */
+		ssids = request->ssids;
+		escan_req = true;
+	} else {
+		/* scan in ibss */
+		/* we don't do escan in ibss */
+		ssids = this_ssid;
+	}
+
+	cfg->scan_request = request;
+	set_bit(WL_STATUS_SCANNING, &cfg->status);
+	if (escan_req) {
+		err = brcmf_do_escan(cfg, wiphy, ndev, request);
+		if (!err)
+			return err;
+		else
+			goto scan_out;
+	} else {
+		WL_SCAN("ssid \"%s\", ssid_len (%d)\n",
+		       ssids->ssid, ssids->ssid_len);
+		memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
+		SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
+		sr->ssid_le.SSID_len = cpu_to_le32(0);
+		spec_scan = false;
+		if (SSID_len) {
+			memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
+			sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
+			spec_scan = true;
+		} else
+			WL_SCAN("Broadcast scan\n");
+
+		passive_scan = cfg->active_scan ? 0 : cpu_to_le32(1);
+		err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_PASSIVE_SCAN,
+				&passive_scan, sizeof(passive_scan));
+		if (err) {
+			WL_ERR("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
+			goto scan_out;
+		}
+		brcmf_set_mpc(ndev, 0);
+		err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN, &sr->ssid_le,
+				      sizeof(sr->ssid_le));
+		if (err) {
+			if (err == -EBUSY)
+				WL_INFO("BUSY: scan for \"%s\" canceled\n",
+					sr->ssid_le.SSID);
+			else
+				WL_ERR("WLC_SCAN error (%d)\n", err);
+
+			brcmf_set_mpc(ndev, 1);
+			goto scan_out;
+		}
+	}
+
+	return 0;
+
+scan_out:
+	clear_bit(WL_STATUS_SCANNING, &cfg->status);
+	if (timer_pending(&cfg->escan_timeout))
+		del_timer_sync(&cfg->escan_timeout);
+	cfg->scan_request = NULL;
 	return err;
 }
 
@@ -695,6 +1186,7 @@ brcmf_cfg80211_scan(struct wiphy *wiphy,
 		 struct cfg80211_scan_request *request)
 {
 	struct net_device *ndev = request->wdev->netdev;
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
@@ -702,7 +1194,11 @@ brcmf_cfg80211_scan(struct wiphy *wiphy,
 	if (!check_sys_up(wiphy))
 		return -EIO;
 
-	err = __brcmf_cfg80211_scan(wiphy, ndev, request, NULL);
+	if (cfg->iscan_on)
+		err = brcmf_cfg80211_iscan(wiphy, ndev, request, NULL);
+	else if (cfg->escan_on)
+		err = brcmf_cfg80211_escan(wiphy, ndev, request, NULL);
+
 	if (err)
 		WL_ERR("scan error (%d)\n", err);
 
@@ -747,8 +1243,8 @@ static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
 
 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
@@ -756,30 +1252,30 @@ static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 		return -EIO;
 
 	if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
-	    (cfg_priv->conf->rts_threshold != wiphy->rts_threshold)) {
-		cfg_priv->conf->rts_threshold = wiphy->rts_threshold;
-		err = brcmf_set_rts(ndev, cfg_priv->conf->rts_threshold);
+	    (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
+		cfg->conf->rts_threshold = wiphy->rts_threshold;
+		err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
 		if (!err)
 			goto done;
 	}
 	if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
-	    (cfg_priv->conf->frag_threshold != wiphy->frag_threshold)) {
-		cfg_priv->conf->frag_threshold = wiphy->frag_threshold;
-		err = brcmf_set_frag(ndev, cfg_priv->conf->frag_threshold);
+	    (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
+		cfg->conf->frag_threshold = wiphy->frag_threshold;
+		err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
 		if (!err)
 			goto done;
 	}
 	if (changed & WIPHY_PARAM_RETRY_LONG
-	    && (cfg_priv->conf->retry_long != wiphy->retry_long)) {
-		cfg_priv->conf->retry_long = wiphy->retry_long;
-		err = brcmf_set_retry(ndev, cfg_priv->conf->retry_long, true);
+	    && (cfg->conf->retry_long != wiphy->retry_long)) {
+		cfg->conf->retry_long = wiphy->retry_long;
+		err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
 		if (!err)
 			goto done;
 	}
 	if (changed & WIPHY_PARAM_RETRY_SHORT
-	    && (cfg_priv->conf->retry_short != wiphy->retry_short)) {
-		cfg_priv->conf->retry_short = wiphy->retry_short;
-		err = brcmf_set_retry(ndev, cfg_priv->conf->retry_short, false);
+	    && (cfg->conf->retry_short != wiphy->retry_short)) {
+		cfg->conf->retry_short = wiphy->retry_short;
+		err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
 		if (!err)
 			goto done;
 	}
@@ -789,61 +1285,6 @@ done:
 	return err;
 }
 
-static void *brcmf_read_prof(struct brcmf_cfg80211_priv *cfg_priv, s32 item)
-{
-	switch (item) {
-	case WL_PROF_SEC:
-		return &cfg_priv->profile->sec;
-	case WL_PROF_BSSID:
-		return &cfg_priv->profile->bssid;
-	case WL_PROF_SSID:
-		return &cfg_priv->profile->ssid;
-	}
-	WL_ERR("invalid item (%d)\n", item);
-	return NULL;
-}
-
-static s32
-brcmf_update_prof(struct brcmf_cfg80211_priv *cfg_priv,
-		  const struct brcmf_event_msg *e, void *data, s32 item)
-{
-	s32 err = 0;
-	struct brcmf_ssid *ssid;
-
-	switch (item) {
-	case WL_PROF_SSID:
-		ssid = (struct brcmf_ssid *) data;
-		memset(cfg_priv->profile->ssid.SSID, 0,
-		       sizeof(cfg_priv->profile->ssid.SSID));
-		memcpy(cfg_priv->profile->ssid.SSID,
-		       ssid->SSID, ssid->SSID_len);
-		cfg_priv->profile->ssid.SSID_len = ssid->SSID_len;
-		break;
-	case WL_PROF_BSSID:
-		if (data)
-			memcpy(cfg_priv->profile->bssid, data, ETH_ALEN);
-		else
-			memset(cfg_priv->profile->bssid, 0, ETH_ALEN);
-		break;
-	case WL_PROF_SEC:
-		memcpy(&cfg_priv->profile->sec, data,
-		       sizeof(cfg_priv->profile->sec));
-		break;
-	case WL_PROF_BEACONINT:
-		cfg_priv->profile->beacon_interval = *(u16 *)data;
-		break;
-	case WL_PROF_DTIMPERIOD:
-		cfg_priv->profile->dtim_period = *(u8 *)data;
-		break;
-	default:
-		WL_ERR("unsupported item (%d)\n", item);
-		err = -EOPNOTSUPP;
-		break;
-	}
-
-	return err;
-}
-
 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
 {
 	memset(prof, 0, sizeof(*prof));
@@ -876,20 +1317,20 @@ static void brcmf_ch_to_chanspec(int ch, struct brcmf_join_params *join_params,
 	}
 }
 
-static void brcmf_link_down(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_link_down(struct brcmf_cfg80211_info *cfg)
 {
 	struct net_device *ndev = NULL;
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
 
-	if (cfg_priv->link_up) {
-		ndev = cfg_to_ndev(cfg_priv);
+	if (cfg->link_up) {
+		ndev = cfg_to_ndev(cfg);
 		WL_INFO("Call WLC_DISASSOC to stop excess roaming\n ");
 		err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, NULL, 0);
 		if (err)
 			WL_ERR("WLC_DISASSOC failed (%d)\n", err);
-		cfg_priv->link_up = false;
+		cfg->link_up = false;
 	}
 	WL_TRACE("Exit\n");
 }
@@ -898,13 +1339,13 @@ static s32
 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
 		      struct cfg80211_ibss_params *params)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_join_params join_params;
 	size_t join_params_size = 0;
 	s32 err = 0;
 	s32 wsec = 0;
 	s32 bcnprd;
-	struct brcmf_ssid ssid;
 
 	WL_TRACE("Enter\n");
 	if (!check_sys_up(wiphy))
@@ -917,7 +1358,7 @@ brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
 		return -EOPNOTSUPP;
 	}
 
-	set_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
+	set_bit(WL_STATUS_CONNECTING, &cfg->status);
 
 	if (params->bssid)
 		WL_CONN("BSSID: %pM\n", params->bssid);
@@ -980,40 +1421,38 @@ brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
 	memset(&join_params, 0, sizeof(struct brcmf_join_params));
 
 	/* SSID */
-	ssid.SSID_len = min_t(u32, params->ssid_len, 32);
-	memcpy(ssid.SSID, params->ssid, ssid.SSID_len);
-	memcpy(join_params.ssid_le.SSID, params->ssid, ssid.SSID_len);
-	join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len);
+	profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
+	memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
+	memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
+	join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
 	join_params_size = sizeof(join_params.ssid_le);
-	brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID);
 
 	/* BSSID */
 	if (params->bssid) {
 		memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
 		join_params_size = sizeof(join_params.ssid_le) +
 				   BRCMF_ASSOC_PARAMS_FIXED_SIZE;
+		memcpy(profile->bssid, params->bssid, ETH_ALEN);
 	} else {
 		memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN);
+		memset(profile->bssid, 0, ETH_ALEN);
 	}
 
-	brcmf_update_prof(cfg_priv, NULL,
-			  &join_params.params_le.bssid, WL_PROF_BSSID);
-
 	/* Channel */
 	if (params->channel) {
 		u32 target_channel;
 
-		cfg_priv->channel =
+		cfg->channel =
 			ieee80211_frequency_to_channel(
 				params->channel->center_freq);
 		if (params->channel_fixed) {
 			/* adding chanspec */
-			brcmf_ch_to_chanspec(cfg_priv->channel,
+			brcmf_ch_to_chanspec(cfg->channel,
 				&join_params, &join_params_size);
 		}
 
 		/* set channel for starter */
-		target_channel = cfg_priv->channel;
+		target_channel = cfg->channel;
 		err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_CHANNEL,
 					  &target_channel);
 		if (err) {
@@ -1021,9 +1460,9 @@ brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
 			goto done;
 		}
 	} else
-		cfg_priv->channel = 0;
+		cfg->channel = 0;
 
-	cfg_priv->ibss_starter = false;
+	cfg->ibss_starter = false;
 
 
 	err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID,
@@ -1035,7 +1474,7 @@ brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
 
 done:
 	if (err)
-		clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
+		clear_bit(WL_STATUS_CONNECTING, &cfg->status);
 	WL_TRACE("Exit\n");
 	return err;
 }
@@ -1043,14 +1482,14 @@ done:
 static s32
 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
 	if (!check_sys_up(wiphy))
 		return -EIO;
 
-	brcmf_link_down(cfg_priv);
+	brcmf_link_down(cfg);
 
 	WL_TRACE("Exit\n");
 
@@ -1060,7 +1499,8 @@ brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
 static s32 brcmf_set_wpa_version(struct net_device *ndev,
 				 struct cfg80211_connect_params *sme)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_cfg80211_security *sec;
 	s32 val = 0;
 	s32 err = 0;
@@ -1077,7 +1517,7 @@ static s32 brcmf_set_wpa_version(struct net_device *ndev,
 		WL_ERR("set wpa_auth failed (%d)\n", err);
 		return err;
 	}
-	sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
+	sec = &profile->sec;
 	sec->wpa_versions = sme->crypto.wpa_versions;
 	return err;
 }
@@ -1085,7 +1525,8 @@ static s32 brcmf_set_wpa_version(struct net_device *ndev,
 static s32 brcmf_set_auth_type(struct net_device *ndev,
 			       struct cfg80211_connect_params *sme)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_cfg80211_security *sec;
 	s32 val = 0;
 	s32 err = 0;
@@ -1116,7 +1557,7 @@ static s32 brcmf_set_auth_type(struct net_device *ndev,
 		WL_ERR("set auth failed (%d)\n", err);
 		return err;
 	}
-	sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
+	sec = &profile->sec;
 	sec->auth_type = sme->auth_type;
 	return err;
 }
@@ -1125,7 +1566,8 @@ static s32
 brcmf_set_set_cipher(struct net_device *ndev,
 		     struct cfg80211_connect_params *sme)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_cfg80211_security *sec;
 	s32 pval = 0;
 	s32 gval = 0;
@@ -1181,7 +1623,7 @@ brcmf_set_set_cipher(struct net_device *ndev,
 		return err;
 	}
 
-	sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
+	sec = &profile->sec;
 	sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
 	sec->cipher_group = sme->crypto.cipher_group;
 
@@ -1191,7 +1633,8 @@ brcmf_set_set_cipher(struct net_device *ndev,
 static s32
 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_cfg80211_security *sec;
 	s32 val = 0;
 	s32 err = 0;
@@ -1237,74 +1680,76 @@ brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 			return err;
 		}
 	}
-	sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
+	sec = &profile->sec;
 	sec->wpa_auth = sme->crypto.akm_suites[0];
 
 	return err;
 }
 
 static s32
-brcmf_set_wep_sharedkey(struct net_device *ndev,
-		     struct cfg80211_connect_params *sme)
+brcmf_set_sharedkey(struct net_device *ndev,
+		    struct cfg80211_connect_params *sme)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_cfg80211_security *sec;
 	struct brcmf_wsec_key key;
 	s32 val;
 	s32 err = 0;
+	s32 bssidx;
 
 	WL_CONN("key len (%d)\n", sme->key_len);
 
 	if (sme->key_len == 0)
 		return 0;
 
-	sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
+	sec = &profile->sec;
 	WL_CONN("wpa_versions 0x%x cipher_pairwise 0x%x\n",
 		sec->wpa_versions, sec->cipher_pairwise);
 
 	if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
 		return 0;
 
-	if (sec->cipher_pairwise &
-	    (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)) {
-		memset(&key, 0, sizeof(key));
-		key.len = (u32) sme->key_len;
-		key.index = (u32) sme->key_idx;
-		if (key.len > sizeof(key.data)) {
-			WL_ERR("Too long key length (%u)\n", key.len);
-			return -EINVAL;
-		}
-		memcpy(key.data, sme->key, key.len);
-		key.flags = BRCMF_PRIMARY_KEY;
-		switch (sec->cipher_pairwise) {
-		case WLAN_CIPHER_SUITE_WEP40:
-			key.algo = CRYPTO_ALGO_WEP1;
-			break;
-		case WLAN_CIPHER_SUITE_WEP104:
-			key.algo = CRYPTO_ALGO_WEP128;
-			break;
-		default:
-			WL_ERR("Invalid algorithm (%d)\n",
-			       sme->crypto.ciphers_pairwise[0]);
-			return -EINVAL;
-		}
-		/* Set the new key/index */
-		WL_CONN("key length (%d) key index (%d) algo (%d)\n",
-			key.len, key.index, key.algo);
-		WL_CONN("key \"%s\"\n", key.data);
-		err = send_key_to_dongle(ndev, &key);
-		if (err)
-			return err;
+	if (!(sec->cipher_pairwise &
+	    (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
+		return 0;
 
-		if (sec->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) {
-			WL_CONN("set auth_type to shared key\n");
-			val = 1;	/* shared key */
-			err = brcmf_dev_intvar_set(ndev, "auth", val);
-			if (err) {
-				WL_ERR("set auth failed (%d)\n", err);
-				return err;
-			}
-		}
+	memset(&key, 0, sizeof(key));
+	key.len = (u32) sme->key_len;
+	key.index = (u32) sme->key_idx;
+	if (key.len > sizeof(key.data)) {
+		WL_ERR("Too long key length (%u)\n", key.len);
+		return -EINVAL;
+	}
+	memcpy(key.data, sme->key, key.len);
+	key.flags = BRCMF_PRIMARY_KEY;
+	switch (sec->cipher_pairwise) {
+	case WLAN_CIPHER_SUITE_WEP40:
+		key.algo = CRYPTO_ALGO_WEP1;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		key.algo = CRYPTO_ALGO_WEP128;
+		break;
+	default:
+		WL_ERR("Invalid algorithm (%d)\n",
+		       sme->crypto.ciphers_pairwise[0]);
+		return -EINVAL;
+	}
+	/* Set the new key/index */
+	WL_CONN("key length (%d) key index (%d) algo (%d)\n",
+		key.len, key.index, key.algo);
+	WL_CONN("key \"%s\"\n", key.data);
+	bssidx = brcmf_find_bssidx(cfg, ndev);
+	err = send_key_to_dongle(cfg, bssidx, ndev, &key);
+	if (err)
+		return err;
+
+	if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
+		WL_CONN("set auth_type to shared key\n");
+		val = WL_AUTH_SHARED_KEY;	/* shared key */
+		err = brcmf_dev_intvar_set_bsscfg(ndev, "auth", val, bssidx);
+		if (err)
+			WL_ERR("set auth failed (%d)\n", err);
 	}
 	return err;
 }
@@ -1313,7 +1758,8 @@ static s32
 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 		    struct cfg80211_connect_params *sme)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct ieee80211_channel *chan = sme->channel;
 	struct brcmf_join_params join_params;
 	size_t join_params_size;
@@ -1330,15 +1776,15 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 		return -EOPNOTSUPP;
 	}
 
-	set_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
+	set_bit(WL_STATUS_CONNECTING, &cfg->status);
 
 	if (chan) {
-		cfg_priv->channel =
+		cfg->channel =
 			ieee80211_frequency_to_channel(chan->center_freq);
 		WL_CONN("channel (%d), center_req (%d)\n",
-				cfg_priv->channel, chan->center_freq);
+				cfg->channel, chan->center_freq);
 	} else
-		cfg_priv->channel = 0;
+		cfg->channel = 0;
 
 	WL_INFO("ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
 
@@ -1366,20 +1812,20 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 		goto done;
 	}
 
-	err = brcmf_set_wep_sharedkey(ndev, sme);
+	err = brcmf_set_sharedkey(ndev, sme);
 	if (err) {
-		WL_ERR("brcmf_set_wep_sharedkey failed (%d)\n", err);
+		WL_ERR("brcmf_set_sharedkey failed (%d)\n", err);
 		goto done;
 	}
 
 	memset(&join_params, 0, sizeof(join_params));
 	join_params_size = sizeof(join_params.ssid_le);
 
-	ssid.SSID_len = min_t(u32, sizeof(ssid.SSID), (u32)sme->ssid_len);
-	memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid.SSID_len);
-	memcpy(&ssid.SSID, sme->ssid, ssid.SSID_len);
-	join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len);
-	brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID);
+	profile->ssid.SSID_len = min_t(u32,
+				       sizeof(ssid.SSID), (u32)sme->ssid_len);
+	memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
+	memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
+	join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
 
 	memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN);
 
@@ -1387,7 +1833,7 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 		WL_CONN("ssid \"%s\", len (%d)\n",
 		       ssid.SSID, ssid.SSID_len);
 
-	brcmf_ch_to_chanspec(cfg_priv->channel,
+	brcmf_ch_to_chanspec(cfg->channel,
 			     &join_params, &join_params_size);
 	err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID,
 			   &join_params, join_params_size);
@@ -1396,7 +1842,7 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 
 done:
 	if (err)
-		clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
+		clear_bit(WL_STATUS_CONNECTING, &cfg->status);
 	WL_TRACE("Exit\n");
 	return err;
 }
@@ -1405,7 +1851,8 @@ static s32
 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
 		       u16 reason_code)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_scb_val_le scbval;
 	s32 err = 0;
 
@@ -1413,16 +1860,16 @@ brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
 	if (!check_sys_up(wiphy))
 		return -EIO;
 
-	clear_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
+	clear_bit(WL_STATUS_CONNECTED, &cfg->status);
 
-	memcpy(&scbval.ea, brcmf_read_prof(cfg_priv, WL_PROF_BSSID), ETH_ALEN);
+	memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
 	scbval.val = cpu_to_le32(reason_code);
 	err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, &scbval,
 			      sizeof(struct brcmf_scb_val_le));
 	if (err)
 		WL_ERR("error (%d)\n", err);
 
-	cfg_priv->link_up = false;
+	cfg->link_up = false;
 
 	WL_TRACE("Exit\n");
 	return err;
@@ -1433,8 +1880,8 @@ brcmf_cfg80211_set_tx_power(struct wiphy *wiphy,
 			    enum nl80211_tx_power_setting type, s32 mbm)
 {
 
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 	u16 txpwrmw;
 	s32 err = 0;
 	s32 disable = 0;
@@ -1470,7 +1917,7 @@ brcmf_cfg80211_set_tx_power(struct wiphy *wiphy,
 			(s32) (brcmf_mw_to_qdbm(txpwrmw)));
 	if (err)
 		WL_ERR("qtxpower error (%d)\n", err);
-	cfg_priv->conf->tx_power = dbm;
+	cfg->conf->tx_power = dbm;
 
 done:
 	WL_TRACE("Exit\n");
@@ -1479,8 +1926,8 @@ done:
 
 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, s32 *dbm)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 	s32 txpwrdbm;
 	u8 result;
 	s32 err = 0;
@@ -1507,16 +1954,19 @@ static s32
 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
 			       u8 key_idx, bool unicast, bool multicast)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	u32 index;
 	u32 wsec;
 	s32 err = 0;
+	s32 bssidx;
 
 	WL_TRACE("Enter\n");
 	WL_CONN("key index (%d)\n", key_idx);
 	if (!check_sys_up(wiphy))
 		return -EIO;
 
-	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec);
+	bssidx = brcmf_find_bssidx(cfg, ndev);
+	err = brcmf_dev_intvar_get_bsscfg(ndev, "wsec", &wsec, bssidx);
 	if (err) {
 		WL_ERR("WLC_GET_WSEC error (%d)\n", err);
 		goto done;
@@ -1539,9 +1989,11 @@ static s32
 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
 	      u8 key_idx, const u8 *mac_addr, struct key_params *params)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct brcmf_wsec_key key;
 	struct brcmf_wsec_key_le key_le;
 	s32 err = 0;
+	s32 bssidx;
 
 	memset(&key, 0, sizeof(key));
 	key.index = (u32) key_idx;
@@ -1550,12 +2002,13 @@ brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
 	if (!is_multicast_ether_addr(mac_addr))
 		memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
 	key.len = (u32) params->key_len;
+	bssidx = brcmf_find_bssidx(cfg, ndev);
 	/* check for key index change */
 	if (key.len == 0) {
 		/* key delete */
-		err = send_key_to_dongle(ndev, &key);
+		err = send_key_to_dongle(cfg, bssidx, ndev, &key);
 		if (err)
-			return err;
+			WL_ERR("key delete error (%d)\n", err);
 	} else {
 		if (key.len > sizeof(key.data)) {
 			WL_ERR("Invalid key length (%d)\n", key.len);
@@ -1611,12 +2064,12 @@ brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
 		convert_key_from_CPU(&key, &key_le);
 
 		brcmf_netdev_wait_pend8021x(ndev);
-		err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le,
-				      sizeof(key_le));
-		if (err) {
-			WL_ERR("WLC_SET_KEY error (%d)\n", err);
-			return err;
-		}
+		err  = brcmf_dev_iovar_setbuf_bsscfg(ndev, "wsec_key", &key_le,
+						     sizeof(key_le),
+						     cfg->extra_buf,
+						     WL_EXTRA_BUF_MAX, bssidx);
+		if (err)
+			WL_ERR("wsec_key error (%d)\n", err);
 	}
 	return err;
 }
@@ -1626,11 +2079,13 @@ brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
 		    u8 key_idx, bool pairwise, const u8 *mac_addr,
 		    struct key_params *params)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct brcmf_wsec_key key;
 	s32 val;
 	s32 wsec;
 	s32 err = 0;
 	u8 keybuf[8];
+	s32 bssidx;
 
 	WL_TRACE("Enter\n");
 	WL_CONN("key index (%d)\n", key_idx);
@@ -1657,25 +2112,33 @@ brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
 	switch (params->cipher) {
 	case WLAN_CIPHER_SUITE_WEP40:
 		key.algo = CRYPTO_ALGO_WEP1;
+		val = WEP_ENABLED;
 		WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
 		break;
 	case WLAN_CIPHER_SUITE_WEP104:
 		key.algo = CRYPTO_ALGO_WEP128;
+		val = WEP_ENABLED;
 		WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		memcpy(keybuf, &key.data[24], sizeof(keybuf));
-		memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
-		memcpy(&key.data[16], keybuf, sizeof(keybuf));
+		if (cfg->conf->mode != WL_MODE_AP) {
+			WL_CONN("Swapping key\n");
+			memcpy(keybuf, &key.data[24], sizeof(keybuf));
+			memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
+			memcpy(&key.data[16], keybuf, sizeof(keybuf));
+		}
 		key.algo = CRYPTO_ALGO_TKIP;
+		val = TKIP_ENABLED;
 		WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
 		break;
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		key.algo = CRYPTO_ALGO_AES_CCM;
+		val = AES_ENABLED;
 		WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		key.algo = CRYPTO_ALGO_AES_CCM;
+		val = AES_ENABLED;
 		WL_CONN("WLAN_CIPHER_SUITE_CCMP\n");
 		break;
 	default:
@@ -1684,28 +2147,23 @@ brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
 		goto done;
 	}
 
-	err = send_key_to_dongle(ndev, &key); /* Set the new key/index */
+	bssidx = brcmf_find_bssidx(cfg, ndev);
+	err = send_key_to_dongle(cfg, bssidx, ndev, &key);
 	if (err)
 		goto done;
 
-	val = WEP_ENABLED;
-	err = brcmf_dev_intvar_get(ndev, "wsec", &wsec);
+	err = brcmf_dev_intvar_get_bsscfg(ndev, "wsec", &wsec, bssidx);
 	if (err) {
 		WL_ERR("get wsec error (%d)\n", err);
 		goto done;
 	}
-	wsec &= ~(WEP_ENABLED);
 	wsec |= val;
-	err = brcmf_dev_intvar_set(ndev, "wsec", wsec);
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "wsec", wsec, bssidx);
 	if (err) {
 		WL_ERR("set wsec error (%d)\n", err);
 		goto done;
 	}
 
-	val = 1;		/* assume shared key. otherwise 0 */
-	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val);
-	if (err)
-		WL_ERR("WLC_SET_AUTH error (%d)\n", err);
 done:
 	WL_TRACE("Exit\n");
 	return err;
@@ -1715,10 +2173,10 @@ static s32
 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
 		    u8 key_idx, bool pairwise, const u8 *mac_addr)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct brcmf_wsec_key key;
 	s32 err = 0;
-	s32 val;
-	s32 wsec;
+	s32 bssidx;
 
 	WL_TRACE("Enter\n");
 	if (!check_sys_up(wiphy))
@@ -1733,7 +2191,8 @@ brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
 	WL_CONN("key index (%d)\n", key_idx);
 
 	/* Set the new key/index */
-	err = send_key_to_dongle(ndev, &key);
+	bssidx = brcmf_find_bssidx(cfg, ndev);
+	err = send_key_to_dongle(cfg, bssidx, ndev, &key);
 	if (err) {
 		if (err == -EINVAL) {
 			if (key.index >= DOT11_MAX_DEFAULT_KEYS)
@@ -1742,35 +2201,8 @@ brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
 		}
 		/* Ignore this error, may happen during DISASSOC */
 		err = -EAGAIN;
-		goto done;
-	}
-
-	val = 0;
-	err = brcmf_dev_intvar_get(ndev, "wsec", &wsec);
-	if (err) {
-		WL_ERR("get wsec error (%d)\n", err);
-		/* Ignore this error, may happen during DISASSOC */
-		err = -EAGAIN;
-		goto done;
-	}
-	wsec &= ~(WEP_ENABLED);
-	wsec |= val;
-	err = brcmf_dev_intvar_set(ndev, "wsec", wsec);
-	if (err) {
-		WL_ERR("set wsec error (%d)\n", err);
-		/* Ignore this error, may happen during DISASSOC */
-		err = -EAGAIN;
-		goto done;
 	}
 
-	val = 0;		/* assume open key. otherwise 1 */
-	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val);
-	if (err) {
-		WL_ERR("WLC_SET_AUTH error (%d)\n", err);
-		/* Ignore this error, may happen during DISASSOC */
-		err = -EAGAIN;
-	}
-done:
 	WL_TRACE("Exit\n");
 	return err;
 }
@@ -1781,10 +2213,12 @@ brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
 		    void (*callback) (void *cookie, struct key_params * params))
 {
 	struct key_params params;
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_cfg80211_security *sec;
 	s32 wsec;
 	s32 err = 0;
+	s32 bssidx;
 
 	WL_TRACE("Enter\n");
 	WL_CONN("key index (%d)\n", key_idx);
@@ -1793,16 +2227,17 @@ brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
 
 	memset(&params, 0, sizeof(params));
 
-	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec);
+	bssidx = brcmf_find_bssidx(cfg, ndev);
+	err = brcmf_dev_intvar_get_bsscfg(ndev, "wsec", &wsec, bssidx);
 	if (err) {
 		WL_ERR("WLC_GET_WSEC error (%d)\n", err);
 		/* Ignore this error, may happen during DISASSOC */
 		err = -EAGAIN;
 		goto done;
 	}
-	switch (wsec) {
+	switch (wsec & ~SES_OW_ENABLED) {
 	case WEP_ENABLED:
-		sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
+		sec = &profile->sec;
 		if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
 			params.cipher = WLAN_CIPHER_SUITE_WEP40;
 			WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
@@ -1842,52 +2277,73 @@ brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
 
 static s32
 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
-			u8 *mac, struct station_info *sinfo)
+			   u8 *mac, struct station_info *sinfo)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_scb_val_le scb_val;
 	int rssi;
 	s32 rate;
 	s32 err = 0;
-	u8 *bssid = brcmf_read_prof(cfg_priv, WL_PROF_BSSID);
+	u8 *bssid = profile->bssid;
+	struct brcmf_sta_info_le *sta_info_le;
 
-	WL_TRACE("Enter\n");
+	WL_TRACE("Enter, MAC %pM\n", mac);
 	if (!check_sys_up(wiphy))
 		return -EIO;
 
-	if (memcmp(mac, bssid, ETH_ALEN)) {
-		WL_ERR("Wrong Mac address cfg_mac-%X:%X:%X:%X:%X:%X"
-			"wl_bssid-%X:%X:%X:%X:%X:%X\n",
-			mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
-			bssid[0], bssid[1], bssid[2], bssid[3],
-			bssid[4], bssid[5]);
-		err = -ENOENT;
-		goto done;
-	}
-
-	/* Report the current tx rate */
-	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_RATE, &rate);
-	if (err) {
-		WL_ERR("Could not get rate (%d)\n", err);
-	} else {
-		sinfo->filled |= STATION_INFO_TX_BITRATE;
-		sinfo->txrate.legacy = rate * 5;
-		WL_CONN("Rate %d Mbps\n", rate / 2);
-	}
-
-	if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) {
-		scb_val.val = cpu_to_le32(0);
-		err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_RSSI, &scb_val,
-				      sizeof(struct brcmf_scb_val_le));
-		if (err)
-			WL_ERR("Could not get rssi (%d)\n", err);
+	if (cfg->conf->mode == WL_MODE_AP) {
+		err = brcmf_dev_iovar_getbuf(ndev, "sta_info", mac, ETH_ALEN,
+					     cfg->dcmd_buf,
+					     WL_DCMD_LEN_MAX);
+		if (err < 0) {
+			WL_ERR("GET STA INFO failed, %d\n", err);
+			goto done;
+		}
+		sta_info_le = (struct brcmf_sta_info_le *)cfg->dcmd_buf;
 
-		rssi = le32_to_cpu(scb_val.val);
-		sinfo->filled |= STATION_INFO_SIGNAL;
-		sinfo->signal = rssi;
-		WL_CONN("RSSI %d dBm\n", rssi);
-	}
+		sinfo->filled = STATION_INFO_INACTIVE_TIME;
+		sinfo->inactive_time = le32_to_cpu(sta_info_le->idle) * 1000;
+		if (le32_to_cpu(sta_info_le->flags) & BRCMF_STA_ASSOC) {
+			sinfo->filled |= STATION_INFO_CONNECTED_TIME;
+			sinfo->connected_time = le32_to_cpu(sta_info_le->in);
+		}
+		WL_TRACE("STA idle time : %d ms, connected time :%d sec\n",
+			 sinfo->inactive_time, sinfo->connected_time);
+	} else if (cfg->conf->mode == WL_MODE_BSS) {
+		if (memcmp(mac, bssid, ETH_ALEN)) {
+			WL_ERR("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
+			       mac, bssid);
+			err = -ENOENT;
+			goto done;
+		}
+		/* Report the current tx rate */
+		err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_RATE, &rate);
+		if (err) {
+			WL_ERR("Could not get rate (%d)\n", err);
+			goto done;
+		} else {
+			sinfo->filled |= STATION_INFO_TX_BITRATE;
+			sinfo->txrate.legacy = rate * 5;
+			WL_CONN("Rate %d Mbps\n", rate / 2);
+		}
 
+		if (test_bit(WL_STATUS_CONNECTED, &cfg->status)) {
+			memset(&scb_val, 0, sizeof(scb_val));
+			err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_RSSI, &scb_val,
+					      sizeof(scb_val));
+			if (err) {
+				WL_ERR("Could not get rssi (%d)\n", err);
+				goto done;
+			} else {
+				rssi = le32_to_cpu(scb_val.val);
+				sinfo->filled |= STATION_INFO_SIGNAL;
+				sinfo->signal = rssi;
+				WL_CONN("RSSI %d dBm\n", rssi);
+			}
+		}
+	} else
+		err = -EPERM;
 done:
 	WL_TRACE("Exit\n");
 	return err;
@@ -1899,7 +2355,7 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
 {
 	s32 pm;
 	s32 err = 0;
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 
 	WL_TRACE("Enter\n");
 
@@ -1907,14 +2363,13 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
 	 * Powersave enable/disable request is coming from the
 	 * cfg80211 even before the interface is up. In that
 	 * scenario, driver will be storing the power save
-	 * preference in cfg_priv struct to apply this to
+	 * preference in cfg struct to apply this to
 	 * FW later while initializing the dongle
 	 */
-	cfg_priv->pwr_save = enabled;
-	if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) {
+	cfg->pwr_save = enabled;
+	if (!test_bit(WL_STATUS_READY, &cfg->status)) {
 
-		WL_INFO("Device is not ready,"
-			"storing the value in cfg_priv struct\n");
+		WL_INFO("Device is not ready, storing the value in cfg_info struct\n");
 		goto done;
 	}
 
@@ -1992,10 +2447,10 @@ done:
 	return err;
 }
 
-static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_priv *cfg_priv,
+static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
 				   struct brcmf_bss_info_le *bi)
 {
-	struct wiphy *wiphy = cfg_to_wiphy(cfg_priv);
+	struct wiphy *wiphy = cfg_to_wiphy(cfg);
 	struct ieee80211_channel *notify_channel;
 	struct cfg80211_bss *bss;
 	struct ieee80211_supported_band *band;
@@ -2059,14 +2514,14 @@ next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
 					    le32_to_cpu(bss->length));
 }
 
-static s32 brcmf_inform_bss(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
 {
 	struct brcmf_scan_results *bss_list;
 	struct brcmf_bss_info_le *bi = NULL;	/* must be initialized */
 	s32 err = 0;
 	int i;
 
-	bss_list = cfg_priv->bss_list;
+	bss_list = cfg->bss_list;
 	if (bss_list->version != BRCMF_BSS_INFO_VERSION) {
 		WL_ERR("Version %d != WL_BSS_INFO_VERSION\n",
 		       bss_list->version);
@@ -2075,17 +2530,17 @@ static s32 brcmf_inform_bss(struct brcmf_cfg80211_priv *cfg_priv)
 	WL_SCAN("scanned AP count (%d)\n", bss_list->count);
 	for (i = 0; i < bss_list->count && i < WL_AP_MAX; i++) {
 		bi = next_bss_le(bss_list, bi);
-		err = brcmf_inform_single_bss(cfg_priv, bi);
+		err = brcmf_inform_single_bss(cfg, bi);
 		if (err)
 			break;
 	}
 	return err;
 }
 
-static s32 wl_inform_ibss(struct brcmf_cfg80211_priv *cfg_priv,
+static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
 			  struct net_device *ndev, const u8 *bssid)
 {
-	struct wiphy *wiphy = cfg_to_wiphy(cfg_priv);
+	struct wiphy *wiphy = cfg_to_wiphy(cfg);
 	struct ieee80211_channel *notify_channel;
 	struct brcmf_bss_info_le *bi = NULL;
 	struct ieee80211_supported_band *band;
@@ -2160,9 +2615,9 @@ CleanUp:
 	return err;
 }
 
-static bool brcmf_is_ibssmode(struct brcmf_cfg80211_priv *cfg_priv)
+static bool brcmf_is_ibssmode(struct brcmf_cfg80211_info *cfg)
 {
-	return cfg_priv->conf->mode == WL_MODE_IBSS;
+	return cfg->conf->mode == WL_MODE_IBSS;
 }
 
 /*
@@ -2179,22 +2634,62 @@ static struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key)
 	totlen = buflen;
 
 	/* find tagged parameter */
-	while (totlen >= 2) {
+	while (totlen >= TLV_HDR_LEN) {
 		int len = elt->len;
 
 		/* validate remaining totlen */
-		if ((elt->id == key) && (totlen >= (len + 2)))
+		if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
 			return elt;
 
-		elt = (struct brcmf_tlv *) ((u8 *) elt + (len + 2));
-		totlen -= (len + 2);
+		elt = (struct brcmf_tlv *) ((u8 *) elt + (len + TLV_HDR_LEN));
+		totlen -= (len + TLV_HDR_LEN);
 	}
 
 	return NULL;
 }
 
-static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv)
+/* Is any of the tlvs the expected entry? If
+ * not update the tlvs buffer pointer/length.
+ */
+static bool
+brcmf_tlv_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len,
+		 u8 *oui, u32 oui_len, u8 type)
 {
+	/* If the contents match the OUI and the type */
+	if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
+	    !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
+	    type == ie[TLV_BODY_OFF + oui_len]) {
+		return true;
+	}
+
+	if (tlvs == NULL)
+		return false;
+	/* point to the next ie */
+	ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
+	/* calculate the length of the rest of the buffer */
+	*tlvs_len -= (int)(ie - *tlvs);
+	/* update the pointer to the start of the buffer */
+	*tlvs = ie;
+
+	return false;
+}
+
+struct brcmf_vs_tlv *
+brcmf_find_wpaie(u8 *parse, u32 len)
+{
+	struct brcmf_tlv *ie;
+
+	while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_WPA))) {
+		if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
+				     WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
+			return (struct brcmf_vs_tlv *)ie;
+	}
+	return NULL;
+}
+
+static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg)
+{
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	struct brcmf_bss_info_le *bi;
 	struct brcmf_ssid *ssid;
 	struct brcmf_tlv *tim;
@@ -2205,21 +2700,21 @@ static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv)
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
-	if (brcmf_is_ibssmode(cfg_priv))
+	if (brcmf_is_ibssmode(cfg))
 		return err;
 
-	ssid = (struct brcmf_ssid *)brcmf_read_prof(cfg_priv, WL_PROF_SSID);
+	ssid = &profile->ssid;
 
-	*(__le32 *)cfg_priv->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
-	err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_GET_BSS_INFO,
-			cfg_priv->extra_buf, WL_EXTRA_BUF_MAX);
+	*(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
+	err = brcmf_exec_dcmd(cfg_to_ndev(cfg), BRCMF_C_GET_BSS_INFO,
+			cfg->extra_buf, WL_EXTRA_BUF_MAX);
 	if (err) {
 		WL_ERR("Could not get bss info %d\n", err);
 		goto update_bss_info_out;
 	}
 
-	bi = (struct brcmf_bss_info_le *)(cfg_priv->extra_buf + 4);
-	err = brcmf_inform_single_bss(cfg_priv, bi);
+	bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
+	err = brcmf_inform_single_bss(cfg, bi);
 	if (err)
 		goto update_bss_info_out;
 
@@ -2237,7 +2732,7 @@ static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv)
 		* so we speficially query dtim information to dongle.
 		*/
 		u32 var;
-		err = brcmf_dev_intvar_get(cfg_to_ndev(cfg_priv),
+		err = brcmf_dev_intvar_get(cfg_to_ndev(cfg),
 					   "dtim_assoc", &var);
 		if (err) {
 			WL_ERR("wl dtim_assoc failed (%d)\n", err);
@@ -2246,20 +2741,22 @@ static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv)
 		dtim_period = (u8)var;
 	}
 
-	brcmf_update_prof(cfg_priv, NULL, &beacon_interval, WL_PROF_BEACONINT);
-	brcmf_update_prof(cfg_priv, NULL, &dtim_period, WL_PROF_DTIMPERIOD);
+	profile->beacon_interval = beacon_interval;
+	profile->dtim_period = dtim_period;
 
 update_bss_info_out:
 	WL_TRACE("Exit");
 	return err;
 }
 
-static void brcmf_term_iscan(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
+	struct escan_info *escan = &cfg->escan_info;
 	struct brcmf_ssid ssid;
 
-	if (cfg_priv->iscan_on) {
+	set_bit(WL_STATUS_SCAN_ABORTING, &cfg->status);
+	if (cfg->iscan_on) {
 		iscan->state = WL_ISCAN_STATE_IDLE;
 
 		if (iscan->timer_on) {
@@ -2272,27 +2769,40 @@ static void brcmf_term_iscan(struct brcmf_cfg80211_priv *cfg_priv)
 		/* Abort iscan running in FW */
 		memset(&ssid, 0, sizeof(ssid));
 		brcmf_run_iscan(iscan, &ssid, WL_SCAN_ACTION_ABORT);
+
+		if (cfg->scan_request) {
+			/* Indidate scan abort to cfg80211 layer */
+			WL_INFO("Terminating scan in progress\n");
+			cfg80211_scan_done(cfg->scan_request, true);
+			cfg->scan_request = NULL;
+		}
+	}
+	if (cfg->escan_on && cfg->scan_request) {
+		escan->escan_state = WL_ESCAN_STATE_IDLE;
+		brcmf_notify_escan_complete(cfg, escan->ndev, true, true);
 	}
+	clear_bit(WL_STATUS_SCANNING, &cfg->status);
+	clear_bit(WL_STATUS_SCAN_ABORTING, &cfg->status);
 }
 
 static void brcmf_notify_iscan_complete(struct brcmf_cfg80211_iscan_ctrl *iscan,
 					bool aborted)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan);
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct brcmf_cfg80211_info *cfg = iscan_to_cfg(iscan);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 
-	if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) {
+	if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg->status)) {
 		WL_ERR("Scan complete while device not scanning\n");
 		return;
 	}
-	if (cfg_priv->scan_request) {
+	if (cfg->scan_request) {
 		WL_SCAN("ISCAN Completed scan: %s\n",
 				aborted ? "Aborted" : "Done");
-		cfg80211_scan_done(cfg_priv->scan_request, aborted);
+		cfg80211_scan_done(cfg->scan_request, aborted);
 		brcmf_set_mpc(ndev, 1);
-		cfg_priv->scan_request = NULL;
+		cfg->scan_request = NULL;
 	}
-	cfg_priv->iscan_kickstart = false;
+	cfg->iscan_kickstart = false;
 }
 
 static s32 brcmf_wakeup_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan)
@@ -2345,21 +2855,21 @@ brcmf_get_iscan_results(struct brcmf_cfg80211_iscan_ctrl *iscan, u32 *status,
 	return err;
 }
 
-static s32 brcmf_iscan_done(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_iscan_done(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
 	s32 err = 0;
 
 	iscan->state = WL_ISCAN_STATE_IDLE;
-	brcmf_inform_bss(cfg_priv);
+	brcmf_inform_bss(cfg);
 	brcmf_notify_iscan_complete(iscan, false);
 
 	return err;
 }
 
-static s32 brcmf_iscan_pending(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_iscan_pending(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
 	s32 err = 0;
 
 	/* Reschedule the timer */
@@ -2369,12 +2879,12 @@ static s32 brcmf_iscan_pending(struct brcmf_cfg80211_priv *cfg_priv)
 	return err;
 }
 
-static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
 	s32 err = 0;
 
-	brcmf_inform_bss(cfg_priv);
+	brcmf_inform_bss(cfg);
 	brcmf_run_iscan(iscan, NULL, BRCMF_SCAN_ACTION_CONTINUE);
 	/* Reschedule the timer */
 	mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
@@ -2383,9 +2893,9 @@ static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_priv *cfg_priv)
 	return err;
 }
 
-static s32 brcmf_iscan_aborted(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_iscan_aborted(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
 	s32 err = 0;
 
 	iscan->state = WL_ISCAN_STATE_IDLE;
@@ -2399,7 +2909,7 @@ static void brcmf_cfg80211_iscan_handler(struct work_struct *work)
 	struct brcmf_cfg80211_iscan_ctrl *iscan =
 			container_of(work, struct brcmf_cfg80211_iscan_ctrl,
 				     work);
-	struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan);
+	struct brcmf_cfg80211_info *cfg = iscan_to_cfg(iscan);
 	struct brcmf_cfg80211_iscan_eloop *el = &iscan->el;
 	u32 status = BRCMF_SCAN_RESULTS_PARTIAL;
 
@@ -2408,12 +2918,12 @@ static void brcmf_cfg80211_iscan_handler(struct work_struct *work)
 		iscan->timer_on = 0;
 	}
 
-	if (brcmf_get_iscan_results(iscan, &status, &cfg_priv->bss_list)) {
+	if (brcmf_get_iscan_results(iscan, &status, &cfg->bss_list)) {
 		status = BRCMF_SCAN_RESULTS_ABORTED;
 		WL_ERR("Abort iscan\n");
 	}
 
-	el->handler[status](cfg_priv);
+	el->handler[status](cfg);
 }
 
 static void brcmf_iscan_timer(unsigned long data)
@@ -2428,11 +2938,11 @@ static void brcmf_iscan_timer(unsigned long data)
 	}
 }
 
-static s32 brcmf_invoke_iscan(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_invoke_iscan(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
 
-	if (cfg_priv->iscan_on) {
+	if (cfg->iscan_on) {
 		iscan->state = WL_ISCAN_STATE_IDLE;
 		INIT_WORK(&iscan->work, brcmf_cfg80211_iscan_handler);
 	}
@@ -2450,26 +2960,192 @@ static void brcmf_init_iscan_eloop(struct brcmf_cfg80211_iscan_eloop *el)
 	el->handler[BRCMF_SCAN_RESULTS_NO_MEM] = brcmf_iscan_aborted;
 }
 
-static s32 brcmf_init_iscan(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_init_iscan(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
+	struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
 	int err = 0;
 
-	if (cfg_priv->iscan_on) {
-		iscan->ndev = cfg_to_ndev(cfg_priv);
+	if (cfg->iscan_on) {
+		iscan->ndev = cfg_to_ndev(cfg);
 		brcmf_init_iscan_eloop(&iscan->el);
 		iscan->timer_ms = WL_ISCAN_TIMER_INTERVAL_MS;
 		init_timer(&iscan->timer);
 		iscan->timer.data = (unsigned long) iscan;
 		iscan->timer.function = brcmf_iscan_timer;
-		err = brcmf_invoke_iscan(cfg_priv);
+		err = brcmf_invoke_iscan(cfg);
 		if (!err)
-			iscan->data = cfg_priv;
+			iscan->data = cfg;
 	}
 
 	return err;
 }
 
+static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
+{
+	struct brcmf_cfg80211_info *cfg =
+			container_of(work, struct brcmf_cfg80211_info,
+				     escan_timeout_work);
+
+	brcmf_notify_escan_complete(cfg,
+		cfg->escan_info.ndev, true, true);
+}
+
+static void brcmf_escan_timeout(unsigned long data)
+{
+	struct brcmf_cfg80211_info *cfg =
+			(struct brcmf_cfg80211_info *)data;
+
+	if (cfg->scan_request) {
+		WL_ERR("timer expired\n");
+		if (cfg->escan_on)
+			schedule_work(&cfg->escan_timeout_work);
+	}
+}
+
+static s32
+brcmf_compare_update_same_bss(struct brcmf_bss_info_le *bss,
+			      struct brcmf_bss_info_le *bss_info_le)
+{
+	if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
+		(CHSPEC_BAND(le16_to_cpu(bss_info_le->chanspec)) ==
+		CHSPEC_BAND(le16_to_cpu(bss->chanspec))) &&
+		bss_info_le->SSID_len == bss->SSID_len &&
+		!memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
+		if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
+			(bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL)) {
+			s16 bss_rssi = le16_to_cpu(bss->RSSI);
+			s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
+
+			/* preserve max RSSI if the measurements are
+			* both on-channel or both off-channel
+			*/
+			if (bss_info_rssi > bss_rssi)
+				bss->RSSI = bss_info_le->RSSI;
+		} else if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) &&
+			(bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL) == 0) {
+			/* preserve the on-channel rssi measurement
+			* if the new measurement is off channel
+			*/
+			bss->RSSI = bss_info_le->RSSI;
+			bss->flags |= WLC_BSS_RSSI_ON_CHANNEL;
+		}
+		return 1;
+	}
+	return 0;
+}
+
+static s32
+brcmf_cfg80211_escan_handler(struct brcmf_cfg80211_info *cfg,
+			     struct net_device *ndev,
+			     const struct brcmf_event_msg *e, void *data)
+{
+	s32 status;
+	s32 err = 0;
+	struct brcmf_escan_result_le *escan_result_le;
+	struct brcmf_bss_info_le *bss_info_le;
+	struct brcmf_bss_info_le *bss = NULL;
+	u32 bi_length;
+	struct brcmf_scan_results *list;
+	u32 i;
+	bool aborted;
+
+	status = be32_to_cpu(e->status);
+
+	if (!ndev || !cfg->escan_on ||
+			!test_bit(WL_STATUS_SCANNING, &cfg->status)) {
+		WL_ERR("scan not ready ndev %p wl->escan_on %d drv_status %x\n",
+			ndev, cfg->escan_on,
+			!test_bit(WL_STATUS_SCANNING, &cfg->status));
+		return -EPERM;
+	}
+
+	if (status == BRCMF_E_STATUS_PARTIAL) {
+		WL_SCAN("ESCAN Partial result\n");
+		escan_result_le = (struct brcmf_escan_result_le *) data;
+		if (!escan_result_le) {
+			WL_ERR("Invalid escan result (NULL pointer)\n");
+			goto exit;
+		}
+		if (!cfg->scan_request) {
+			WL_SCAN("result without cfg80211 request\n");
+			goto exit;
+		}
+
+		if (le16_to_cpu(escan_result_le->bss_count) != 1) {
+			WL_ERR("Invalid bss_count %d: ignoring\n",
+				escan_result_le->bss_count);
+			goto exit;
+		}
+		bss_info_le = &escan_result_le->bss_info_le;
+
+		bi_length = le32_to_cpu(bss_info_le->length);
+		if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
+					WL_ESCAN_RESULTS_FIXED_SIZE)) {
+			WL_ERR("Invalid bss_info length %d: ignoring\n",
+				bi_length);
+			goto exit;
+		}
+
+		if (!(cfg_to_wiphy(cfg)->interface_modes &
+					BIT(NL80211_IFTYPE_ADHOC))) {
+			if (le16_to_cpu(bss_info_le->capability) &
+						WLAN_CAPABILITY_IBSS) {
+				WL_ERR("Ignoring IBSS result\n");
+				goto exit;
+			}
+		}
+
+		list = (struct brcmf_scan_results *)
+				cfg->escan_info.escan_buf;
+		if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
+			WL_ERR("Buffer is too small: ignoring\n");
+			goto exit;
+		}
+
+		for (i = 0; i < list->count; i++) {
+			bss = bss ? (struct brcmf_bss_info_le *)
+				((unsigned char *)bss +
+				le32_to_cpu(bss->length)) : list->bss_info_le;
+			if (brcmf_compare_update_same_bss(bss, bss_info_le))
+				goto exit;
+		}
+		memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
+			bss_info_le, bi_length);
+		list->version = le32_to_cpu(bss_info_le->version);
+		list->buflen += bi_length;
+		list->count++;
+	} else {
+		cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
+		if (cfg->scan_request) {
+			cfg->bss_list = (struct brcmf_scan_results *)
+				cfg->escan_info.escan_buf;
+			brcmf_inform_bss(cfg);
+			aborted = status != BRCMF_E_STATUS_SUCCESS;
+			brcmf_notify_escan_complete(cfg, ndev, aborted,
+						    false);
+		} else
+			WL_ERR("Unexpected scan result 0x%x\n", status);
+	}
+exit:
+	return err;
+}
+
+static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
+{
+
+	if (cfg->escan_on) {
+		cfg->el.handler[BRCMF_E_ESCAN_RESULT] =
+			brcmf_cfg80211_escan_handler;
+		cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
+		/* Init scan_timeout timer */
+		init_timer(&cfg->escan_timeout);
+		cfg->escan_timeout.data = (unsigned long) cfg;
+		cfg->escan_timeout.function = brcmf_escan_timeout;
+		INIT_WORK(&cfg->escan_timeout_work,
+			brcmf_cfg80211_escan_timeout_worker);
+	}
+}
+
 static __always_inline void brcmf_delay(u32 ms)
 {
 	if (ms < 1000 / HZ) {
@@ -2482,7 +3158,7 @@ static __always_inline void brcmf_delay(u32 ms)
 
 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 
 	/*
 	 * Check for WL_STATUS_READY before any function call which
@@ -2491,7 +3167,7 @@ static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
 	 */
 	WL_TRACE("Enter\n");
 
-	if (test_bit(WL_STATUS_READY, &cfg_priv->status))
+	if (test_bit(WL_STATUS_READY, &cfg->status))
 		brcmf_invoke_iscan(wiphy_to_cfg(wiphy));
 
 	WL_TRACE("Exit\n");
@@ -2501,8 +3177,8 @@ static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
 				  struct cfg80211_wowlan *wow)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 
 	WL_TRACE("Enter\n");
 
@@ -2516,12 +3192,12 @@ static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
 	 * While going to suspend if associated with AP disassociate
 	 * from AP to save power while system is in suspended state
 	 */
-	if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) ||
-	     test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) &&
-	     test_bit(WL_STATUS_READY, &cfg_priv->status)) {
+	if ((test_bit(WL_STATUS_CONNECTED, &cfg->status) ||
+	     test_bit(WL_STATUS_CONNECTING, &cfg->status)) &&
+	     test_bit(WL_STATUS_READY, &cfg->status)) {
 		WL_INFO("Disassociating from AP"
 			" while entering suspend state\n");
-		brcmf_link_down(cfg_priv);
+		brcmf_link_down(cfg);
 
 		/*
 		 * Make sure WPA_Supplicant receives all the event
@@ -2531,24 +3207,14 @@ static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
 		brcmf_delay(500);
 	}
 
-	set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
-	if (test_bit(WL_STATUS_READY, &cfg_priv->status))
-		brcmf_term_iscan(cfg_priv);
-
-	if (cfg_priv->scan_request) {
-		/* Indidate scan abort to cfg80211 layer */
-		WL_INFO("Terminating scan in progress\n");
-		cfg80211_scan_done(cfg_priv->scan_request, true);
-		cfg_priv->scan_request = NULL;
-	}
-	clear_bit(WL_STATUS_SCANNING, &cfg_priv->status);
-	clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
+	if (test_bit(WL_STATUS_READY, &cfg->status))
+		brcmf_abort_scanning(cfg);
+	else
+		clear_bit(WL_STATUS_SCANNING, &cfg->status);
 
 	/* Turn off watchdog timer */
-	if (test_bit(WL_STATUS_READY, &cfg_priv->status)) {
-		WL_INFO("Enable MPC\n");
+	if (test_bit(WL_STATUS_READY, &cfg->status))
 		brcmf_set_mpc(ndev, 1);
-	}
 
 	WL_TRACE("Exit\n");
 
@@ -2558,14 +3224,14 @@ static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
 static __used s32
 brcmf_dev_bufvar_set(struct net_device *ndev, s8 *name, s8 *buf, s32 len)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
 	u32 buflen;
 
-	buflen = brcmf_c_mkiovar(name, buf, len, cfg_priv->dcmd_buf,
+	buflen = brcmf_c_mkiovar(name, buf, len, cfg->dcmd_buf,
 			       WL_DCMD_LEN_MAX);
 	BUG_ON(!buflen);
 
-	return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, cfg_priv->dcmd_buf,
+	return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, cfg->dcmd_buf,
 			       buflen);
 }
 
@@ -2573,20 +3239,20 @@ static s32
 brcmf_dev_bufvar_get(struct net_device *ndev, s8 *name, s8 *buf,
 		  s32 buf_len)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
 	u32 len;
 	s32 err = 0;
 
-	len = brcmf_c_mkiovar(name, NULL, 0, cfg_priv->dcmd_buf,
+	len = brcmf_c_mkiovar(name, NULL, 0, cfg->dcmd_buf,
 			    WL_DCMD_LEN_MAX);
 	BUG_ON(!len);
-	err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, cfg_priv->dcmd_buf,
+	err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, cfg->dcmd_buf,
 			      WL_DCMD_LEN_MAX);
 	if (err) {
 		WL_ERR("error (%d)\n", err);
 		return err;
 	}
-	memcpy(buf, cfg_priv->dcmd_buf, buf_len);
+	memcpy(buf, cfg->dcmd_buf, buf_len);
 
 	return err;
 }
@@ -2619,8 +3285,8 @@ static s32
 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
 			 struct cfg80211_pmksa *pmksa)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
-	struct pmkid_list *pmkids = &cfg_priv->pmk_list->pmkids;
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
 	s32 err = 0;
 	int i;
 	int pmkid_len;
@@ -2648,7 +3314,7 @@ brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
 	for (i = 0; i < WLAN_PMKID_LEN; i++)
 		WL_CONN("%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
 
-	err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err);
+	err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
 
 	WL_TRACE("Exit\n");
 	return err;
@@ -2658,7 +3324,7 @@ static s32
 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
 		      struct cfg80211_pmksa *pmksa)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct pmkid_list pmkid;
 	s32 err = 0;
 	int i, pmkid_len;
@@ -2675,30 +3341,30 @@ brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
 	for (i = 0; i < WLAN_PMKID_LEN; i++)
 		WL_CONN("%02x\n", pmkid.pmkid[0].PMKID[i]);
 
-	pmkid_len = le32_to_cpu(cfg_priv->pmk_list->pmkids.npmkid);
+	pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
 	for (i = 0; i < pmkid_len; i++)
 		if (!memcmp
-		    (pmksa->bssid, &cfg_priv->pmk_list->pmkids.pmkid[i].BSSID,
+		    (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
 		     ETH_ALEN))
 			break;
 
 	if ((pmkid_len > 0)
 	    && (i < pmkid_len)) {
-		memset(&cfg_priv->pmk_list->pmkids.pmkid[i], 0,
+		memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
 		       sizeof(struct pmkid));
 		for (; i < (pmkid_len - 1); i++) {
-			memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].BSSID,
-			       &cfg_priv->pmk_list->pmkids.pmkid[i + 1].BSSID,
+			memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
+			       &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
 			       ETH_ALEN);
-			memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].PMKID,
-			       &cfg_priv->pmk_list->pmkids.pmkid[i + 1].PMKID,
+			memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
+			       &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
 			       WLAN_PMKID_LEN);
 		}
-		cfg_priv->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
+		cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
 	} else
 		err = -EINVAL;
 
-	err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err);
+	err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
 
 	WL_TRACE("Exit\n");
 	return err;
@@ -2708,21 +3374,979 @@ brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
 static s32
 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
 {
-	struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
 	if (!check_sys_up(wiphy))
 		return -EIO;
 
-	memset(cfg_priv->pmk_list, 0, sizeof(*cfg_priv->pmk_list));
-	err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err);
+	memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
+	err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
 
 	WL_TRACE("Exit\n");
 	return err;
 
 }
 
+/*
+ * PFN result doesn't have all the info which are
+ * required by the supplicant
+ * (For e.g IEs) Do a target Escan so that sched scan results are reported
+ * via wl_inform_single_bss in the required format. Escan does require the
+ * scan request in the form of cfg80211_scan_request. For timebeing, create
+ * cfg80211_scan_request one out of the received PNO event.
+ */
+static s32
+brcmf_notify_sched_scan_results(struct brcmf_cfg80211_info *cfg,
+				struct net_device *ndev,
+				const struct brcmf_event_msg *e, void *data)
+{
+	struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
+	struct cfg80211_scan_request *request = NULL;
+	struct cfg80211_ssid *ssid = NULL;
+	struct ieee80211_channel *channel = NULL;
+	struct wiphy *wiphy = cfg_to_wiphy(cfg);
+	int err = 0;
+	int channel_req = 0;
+	int band = 0;
+	struct brcmf_pno_scanresults_le *pfn_result;
+	u32 result_count;
+	u32 status;
+
+	WL_SCAN("Enter\n");
+
+	if (e->event_type == cpu_to_be32(BRCMF_E_PFN_NET_LOST)) {
+		WL_SCAN("PFN NET LOST event. Do Nothing\n");
+		return 0;
+	}
+
+	pfn_result = (struct brcmf_pno_scanresults_le *)data;
+	result_count = le32_to_cpu(pfn_result->count);
+	status = le32_to_cpu(pfn_result->status);
+
+	/*
+	 * PFN event is limited to fit 512 bytes so we may get
+	 * multiple NET_FOUND events. For now place a warning here.
+	 */
+	WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
+	WL_SCAN("PFN NET FOUND event. count: %d\n", result_count);
+	if (result_count > 0) {
+		int i;
+
+		request = kzalloc(sizeof(*request), GFP_KERNEL);
+		ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
+		channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
+		if (!request || !ssid || !channel) {
+			err = -ENOMEM;
+			goto out_err;
+		}
+
+		request->wiphy = wiphy;
+		data += sizeof(struct brcmf_pno_scanresults_le);
+		netinfo_start = (struct brcmf_pno_net_info_le *)data;
+
+		for (i = 0; i < result_count; i++) {
+			netinfo = &netinfo_start[i];
+			if (!netinfo) {
+				WL_ERR("Invalid netinfo ptr. index: %d\n", i);
+				err = -EINVAL;
+				goto out_err;
+			}
+
+			WL_SCAN("SSID:%s Channel:%d\n",
+			netinfo->SSID, netinfo->channel);
+			memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
+			ssid[i].ssid_len = netinfo->SSID_len;
+			request->n_ssids++;
+
+			channel_req = netinfo->channel;
+			if (channel_req <= CH_MAX_2G_CHANNEL)
+				band = NL80211_BAND_2GHZ;
+			else
+				band = NL80211_BAND_5GHZ;
+			channel[i].center_freq =
+				ieee80211_channel_to_frequency(channel_req,
+							       band);
+			channel[i].band = band;
+			channel[i].flags |= IEEE80211_CHAN_NO_HT40;
+			request->channels[i] = &channel[i];
+			request->n_channels++;
+		}
+
+		/* assign parsed ssid array */
+		if (request->n_ssids)
+			request->ssids = &ssid[0];
+
+		if (test_bit(WL_STATUS_SCANNING, &cfg->status)) {
+			/* Abort any on-going scan */
+			brcmf_abort_scanning(cfg);
+		}
+
+		set_bit(WL_STATUS_SCANNING, &cfg->status);
+		err = brcmf_do_escan(cfg, wiphy, ndev, request);
+		if (err) {
+			clear_bit(WL_STATUS_SCANNING, &cfg->status);
+			goto out_err;
+		}
+		cfg->sched_escan = true;
+		cfg->scan_request = request;
+	} else {
+		WL_ERR("FALSE PNO Event. (pfn_count == 0)\n");
+		goto out_err;
+	}
+
+	kfree(ssid);
+	kfree(channel);
+	kfree(request);
+	return 0;
+
+out_err:
+	kfree(ssid);
+	kfree(channel);
+	kfree(request);
+	cfg80211_sched_scan_stopped(wiphy);
+	return err;
+}
+
+#ifndef CONFIG_BRCMISCAN
+static int brcmf_dev_pno_clean(struct net_device *ndev)
+{
+	char iovbuf[128];
+	int ret;
+
+	/* Disable pfn */
+	ret = brcmf_dev_intvar_set(ndev, "pfn", 0);
+	if (ret == 0) {
+		/* clear pfn */
+		ret = brcmf_dev_iovar_setbuf(ndev, "pfnclear", NULL, 0,
+					     iovbuf, sizeof(iovbuf));
+	}
+	if (ret < 0)
+		WL_ERR("failed code %d\n", ret);
+
+	return ret;
+}
+
+static int brcmf_dev_pno_config(struct net_device *ndev)
+{
+	struct brcmf_pno_param_le pfn_param;
+	char iovbuf[128];
+
+	memset(&pfn_param, 0, sizeof(pfn_param));
+	pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
+
+	/* set extra pno params */
+	pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
+	pfn_param.repeat = BRCMF_PNO_REPEAT;
+	pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
+
+	/* set up pno scan fr */
+	pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
+
+	return brcmf_dev_iovar_setbuf(ndev, "pfn_set",
+				      &pfn_param, sizeof(pfn_param),
+				      iovbuf, sizeof(iovbuf));
+}
+
+static int
+brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
+				struct net_device *ndev,
+				struct cfg80211_sched_scan_request *request)
+{
+	char iovbuf[128];
+	struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
+	struct brcmf_pno_net_param_le pfn;
+	int i;
+	int ret = 0;
+
+	WL_SCAN("Enter n_match_sets:%d   n_ssids:%d\n",
+		request->n_match_sets, request->n_ssids);
+	if (test_bit(WL_STATUS_SCANNING, &cfg->status)) {
+		WL_ERR("Scanning already : status (%lu)\n", cfg->status);
+		return -EAGAIN;
+	}
+
+	if (!request || !request->n_ssids || !request->n_match_sets) {
+		WL_ERR("Invalid sched scan req!! n_ssids:%d\n",
+		       request->n_ssids);
+		return -EINVAL;
+	}
+
+	if (request->n_ssids > 0) {
+		for (i = 0; i < request->n_ssids; i++) {
+			/* Active scan req for ssids */
+			WL_SCAN(">>> Active scan req for ssid (%s)\n",
+				request->ssids[i].ssid);
+
+			/*
+			 * match_set ssids is a supert set of n_ssid list,
+			 * so we need not add these set seperately.
+			 */
+		}
+	}
+
+	if (request->n_match_sets > 0) {
+		/* clean up everything */
+		ret = brcmf_dev_pno_clean(ndev);
+		if  (ret < 0) {
+			WL_ERR("failed error=%d\n", ret);
+			return ret;
+		}
+
+		/* configure pno */
+		ret = brcmf_dev_pno_config(ndev);
+		if (ret < 0) {
+			WL_ERR("PNO setup failed!! ret=%d\n", ret);
+			return -EINVAL;
+		}
+
+		/* configure each match set */
+		for (i = 0; i < request->n_match_sets; i++) {
+			struct cfg80211_ssid *ssid;
+			u32 ssid_len;
+
+			ssid = &request->match_sets[i].ssid;
+			ssid_len = ssid->ssid_len;
+
+			if (!ssid_len) {
+				WL_ERR("skip broadcast ssid\n");
+				continue;
+			}
+			pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
+			pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
+			pfn.wsec = cpu_to_le32(0);
+			pfn.infra = cpu_to_le32(1);
+			pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
+			pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
+			memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
+			ret = brcmf_dev_iovar_setbuf(ndev, "pfn_add",
+						     &pfn, sizeof(pfn),
+						     iovbuf, sizeof(iovbuf));
+			WL_SCAN(">>> PNO filter %s for ssid (%s)\n",
+				ret == 0 ? "set" : "failed",
+				ssid->ssid);
+		}
+		/* Enable the PNO */
+		if (brcmf_dev_intvar_set(ndev, "pfn", 1) < 0) {
+			WL_ERR("PNO enable failed!! ret=%d\n", ret);
+			return -EINVAL;
+		}
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
+					  struct net_device *ndev)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+
+	WL_SCAN("enter\n");
+	brcmf_dev_pno_clean(ndev);
+	if (cfg->sched_escan)
+		brcmf_notify_escan_complete(cfg, ndev, true, true);
+	return 0;
+}
+#endif /* CONFIG_BRCMISCAN */
+
+#ifdef CONFIG_NL80211_TESTMODE
+static int brcmf_cfg80211_testmode(struct wiphy *wiphy, void *data, int len)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct net_device *ndev = cfg->wdev->netdev;
+	struct brcmf_dcmd *dcmd = data;
+	struct sk_buff *reply;
+	int ret;
+
+	ret = brcmf_netlink_dcmd(ndev, dcmd);
+	if (ret == 0) {
+		reply = cfg80211_testmode_alloc_reply_skb(wiphy, sizeof(*dcmd));
+		nla_put(reply, NL80211_ATTR_TESTDATA, sizeof(*dcmd), dcmd);
+		ret = cfg80211_testmode_reply(reply);
+	}
+	return ret;
+}
+#endif
+
+static s32 brcmf_configure_opensecurity(struct net_device *ndev, s32 bssidx)
+{
+	s32 err;
+
+	/* set auth */
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "auth", 0, bssidx);
+	if (err < 0) {
+		WL_ERR("auth error %d\n", err);
+		return err;
+	}
+	/* set wsec */
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "wsec", 0, bssidx);
+	if (err < 0) {
+		WL_ERR("wsec error %d\n", err);
+		return err;
+	}
+	/* set upper-layer auth */
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "wpa_auth",
+					  WPA_AUTH_NONE, bssidx);
+	if (err < 0) {
+		WL_ERR("wpa_auth error %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
+{
+	if (is_rsn_ie)
+		return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
+
+	return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
+}
+
+static s32
+brcmf_configure_wpaie(struct net_device *ndev, struct brcmf_vs_tlv *wpa_ie,
+		     bool is_rsn_ie, s32 bssidx)
+{
+	u32 auth = 0; /* d11 open authentication */
+	u16 count;
+	s32 err = 0;
+	s32 len = 0;
+	u32 i;
+	u32 wsec;
+	u32 pval = 0;
+	u32 gval = 0;
+	u32 wpa_auth = 0;
+	u32 offset;
+	u8 *data;
+	u16 rsn_cap;
+	u32 wme_bss_disable;
+
+	WL_TRACE("Enter\n");
+	if (wpa_ie == NULL)
+		goto exit;
+
+	len = wpa_ie->len + TLV_HDR_LEN;
+	data = (u8 *)wpa_ie;
+	offset = 0;
+	if (!is_rsn_ie)
+		offset += VS_IE_FIXED_HDR_LEN;
+	offset += WPA_IE_VERSION_LEN;
+
+	/* check for multicast cipher suite */
+	if (offset + WPA_IE_MIN_OUI_LEN > len) {
+		err = -EINVAL;
+		WL_ERR("no multicast cipher suite\n");
+		goto exit;
+	}
+
+	if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
+		err = -EINVAL;
+		WL_ERR("ivalid OUI\n");
+		goto exit;
+	}
+	offset += TLV_OUI_LEN;
+
+	/* pick up multicast cipher */
+	switch (data[offset]) {
+	case WPA_CIPHER_NONE:
+		gval = 0;
+		break;
+	case WPA_CIPHER_WEP_40:
+	case WPA_CIPHER_WEP_104:
+		gval = WEP_ENABLED;
+		break;
+	case WPA_CIPHER_TKIP:
+		gval = TKIP_ENABLED;
+		break;
+	case WPA_CIPHER_AES_CCM:
+		gval = AES_ENABLED;
+		break;
+	default:
+		err = -EINVAL;
+		WL_ERR("Invalid multi cast cipher info\n");
+		goto exit;
+	}
+
+	offset++;
+	/* walk thru unicast cipher list and pick up what we recognize */
+	count = data[offset] + (data[offset + 1] << 8);
+	offset += WPA_IE_SUITE_COUNT_LEN;
+	/* Check for unicast suite(s) */
+	if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
+		err = -EINVAL;
+		WL_ERR("no unicast cipher suite\n");
+		goto exit;
+	}
+	for (i = 0; i < count; i++) {
+		if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
+			err = -EINVAL;
+			WL_ERR("ivalid OUI\n");
+			goto exit;
+		}
+		offset += TLV_OUI_LEN;
+		switch (data[offset]) {
+		case WPA_CIPHER_NONE:
+			break;
+		case WPA_CIPHER_WEP_40:
+		case WPA_CIPHER_WEP_104:
+			pval |= WEP_ENABLED;
+			break;
+		case WPA_CIPHER_TKIP:
+			pval |= TKIP_ENABLED;
+			break;
+		case WPA_CIPHER_AES_CCM:
+			pval |= AES_ENABLED;
+			break;
+		default:
+			WL_ERR("Ivalid unicast security info\n");
+		}
+		offset++;
+	}
+	/* walk thru auth management suite list and pick up what we recognize */
+	count = data[offset] + (data[offset + 1] << 8);
+	offset += WPA_IE_SUITE_COUNT_LEN;
+	/* Check for auth key management suite(s) */
+	if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
+		err = -EINVAL;
+		WL_ERR("no auth key mgmt suite\n");
+		goto exit;
+	}
+	for (i = 0; i < count; i++) {
+		if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
+			err = -EINVAL;
+			WL_ERR("ivalid OUI\n");
+			goto exit;
+		}
+		offset += TLV_OUI_LEN;
+		switch (data[offset]) {
+		case RSN_AKM_NONE:
+			WL_TRACE("RSN_AKM_NONE\n");
+			wpa_auth |= WPA_AUTH_NONE;
+			break;
+		case RSN_AKM_UNSPECIFIED:
+			WL_TRACE("RSN_AKM_UNSPECIFIED\n");
+			is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
+				    (wpa_auth |= WPA_AUTH_UNSPECIFIED);
+			break;
+		case RSN_AKM_PSK:
+			WL_TRACE("RSN_AKM_PSK\n");
+			is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
+				    (wpa_auth |= WPA_AUTH_PSK);
+			break;
+		default:
+			WL_ERR("Ivalid key mgmt info\n");
+		}
+		offset++;
+	}
+
+	if (is_rsn_ie) {
+		wme_bss_disable = 1;
+		if ((offset + RSN_CAP_LEN) <= len) {
+			rsn_cap = data[offset] + (data[offset + 1] << 8);
+			if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
+				wme_bss_disable = 0;
+		}
+		/* set wme_bss_disable to sync RSN Capabilities */
+		err = brcmf_dev_intvar_set_bsscfg(ndev, "wme_bss_disable",
+						  wme_bss_disable, bssidx);
+		if (err < 0) {
+			WL_ERR("wme_bss_disable error %d\n", err);
+			goto exit;
+		}
+	}
+	/* FOR WPS , set SES_OW_ENABLED */
+	wsec = (pval | gval | SES_OW_ENABLED);
+
+	/* set auth */
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "auth", auth, bssidx);
+	if (err < 0) {
+		WL_ERR("auth error %d\n", err);
+		goto exit;
+	}
+	/* set wsec */
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "wsec", wsec, bssidx);
+	if (err < 0) {
+		WL_ERR("wsec error %d\n", err);
+		goto exit;
+	}
+	/* set upper-layer auth */
+	err = brcmf_dev_intvar_set_bsscfg(ndev, "wpa_auth", wpa_auth, bssidx);
+	if (err < 0) {
+		WL_ERR("wpa_auth error %d\n", err);
+		goto exit;
+	}
+
+exit:
+	return err;
+}
+
+static s32
+brcmf_parse_vndr_ies(u8 *vndr_ie_buf, u32 vndr_ie_len,
+		     struct parsed_vndr_ies *vndr_ies)
+{
+	s32 err = 0;
+	struct brcmf_vs_tlv *vndrie;
+	struct brcmf_tlv *ie;
+	struct parsed_vndr_ie_info *parsed_info;
+	s32 remaining_len;
+
+	remaining_len = (s32)vndr_ie_len;
+	memset(vndr_ies, 0, sizeof(*vndr_ies));
+
+	ie = (struct brcmf_tlv *)vndr_ie_buf;
+	while (ie) {
+		if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
+			goto next;
+		vndrie = (struct brcmf_vs_tlv *)ie;
+		/* len should be bigger than OUI length + one */
+		if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
+			WL_ERR("invalid vndr ie. length is too small %d\n",
+				vndrie->len);
+			goto next;
+		}
+		/* if wpa or wme ie, do not add ie */
+		if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
+		    ((vndrie->oui_type == WPA_OUI_TYPE) ||
+		    (vndrie->oui_type == WME_OUI_TYPE))) {
+			WL_TRACE("Found WPA/WME oui. Do not add it\n");
+			goto next;
+		}
+
+		parsed_info = &vndr_ies->ie_info[vndr_ies->count];
+
+		/* save vndr ie information */
+		parsed_info->ie_ptr = (char *)vndrie;
+		parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
+		memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
+
+		vndr_ies->count++;
+
+		WL_TRACE("** OUI %02x %02x %02x, type 0x%02x\n",
+			 parsed_info->vndrie.oui[0],
+			 parsed_info->vndrie.oui[1],
+			 parsed_info->vndrie.oui[2],
+			 parsed_info->vndrie.oui_type);
+
+		if (vndr_ies->count >= MAX_VNDR_IE_NUMBER)
+			break;
+next:
+		remaining_len -= ie->len;
+		if (remaining_len <= 2)
+			ie = NULL;
+		else
+			ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len);
+	}
+	return err;
+}
+
+static u32
+brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
+{
+
+	__le32 iecount_le;
+	__le32 pktflag_le;
+
+	strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
+	iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
+
+	iecount_le = cpu_to_le32(1);
+	memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
+
+	pktflag_le = cpu_to_le32(pktflag);
+	memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
+
+	memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
+
+	return ie_len + VNDR_IE_HDR_SIZE;
+}
+
+s32
+brcmf_set_management_ie(struct brcmf_cfg80211_info *cfg,
+			struct net_device *ndev, s32 bssidx, s32 pktflag,
+			u8 *vndr_ie_buf, u32 vndr_ie_len)
+{
+	s32 err = 0;
+	u8  *iovar_ie_buf;
+	u8  *curr_ie_buf;
+	u8  *mgmt_ie_buf = NULL;
+	u32 mgmt_ie_buf_len = 0;
+	u32 *mgmt_ie_len = 0;
+	u32 del_add_ie_buf_len = 0;
+	u32 total_ie_buf_len = 0;
+	u32 parsed_ie_buf_len = 0;
+	struct parsed_vndr_ies old_vndr_ies;
+	struct parsed_vndr_ies new_vndr_ies;
+	struct parsed_vndr_ie_info *vndrie_info;
+	s32 i;
+	u8 *ptr;
+	u32 remained_buf_len;
+
+	WL_TRACE("bssidx %d, pktflag : 0x%02X\n", bssidx, pktflag);
+	iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
+	if (!iovar_ie_buf)
+		return -ENOMEM;
+	curr_ie_buf = iovar_ie_buf;
+	if (test_bit(WL_STATUS_AP_CREATING, &cfg->status) ||
+	    test_bit(WL_STATUS_AP_CREATED, &cfg->status)) {
+		switch (pktflag) {
+		case VNDR_IE_PRBRSP_FLAG:
+			mgmt_ie_buf = cfg->ap_info->probe_res_ie;
+			mgmt_ie_len = &cfg->ap_info->probe_res_ie_len;
+			mgmt_ie_buf_len =
+				sizeof(cfg->ap_info->probe_res_ie);
+			break;
+		case VNDR_IE_BEACON_FLAG:
+			mgmt_ie_buf = cfg->ap_info->beacon_ie;
+			mgmt_ie_len = &cfg->ap_info->beacon_ie_len;
+			mgmt_ie_buf_len = sizeof(cfg->ap_info->beacon_ie);
+			break;
+		default:
+			err = -EPERM;
+			WL_ERR("not suitable type\n");
+			goto exit;
+		}
+		bssidx = 0;
+	} else {
+		err = -EPERM;
+		WL_ERR("not suitable type\n");
+		goto exit;
+	}
+
+	if (vndr_ie_len > mgmt_ie_buf_len) {
+		err = -ENOMEM;
+		WL_ERR("extra IE size too big\n");
+		goto exit;
+	}
+
+	/* parse and save new vndr_ie in curr_ie_buff before comparing it */
+	if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
+		ptr = curr_ie_buf;
+		brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
+		for (i = 0; i < new_vndr_ies.count; i++) {
+			vndrie_info = &new_vndr_ies.ie_info[i];
+			memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
+			       vndrie_info->ie_len);
+			parsed_ie_buf_len += vndrie_info->ie_len;
+		}
+	}
+
+	if (mgmt_ie_buf != NULL) {
+		if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
+		    (memcmp(mgmt_ie_buf, curr_ie_buf,
+			    parsed_ie_buf_len) == 0)) {
+			WL_TRACE("Previous mgmt IE is equals to current IE");
+			goto exit;
+		}
+
+		/* parse old vndr_ie */
+		brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
+
+		/* make a command to delete old ie */
+		for (i = 0; i < old_vndr_ies.count; i++) {
+			vndrie_info = &old_vndr_ies.ie_info[i];
+
+			WL_TRACE("DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
+				 vndrie_info->vndrie.id,
+				 vndrie_info->vndrie.len,
+				 vndrie_info->vndrie.oui[0],
+				 vndrie_info->vndrie.oui[1],
+				 vndrie_info->vndrie.oui[2]);
+
+			del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
+							   vndrie_info->ie_ptr,
+							   vndrie_info->ie_len,
+							   "del");
+			curr_ie_buf += del_add_ie_buf_len;
+			total_ie_buf_len += del_add_ie_buf_len;
+		}
+	}
+
+	*mgmt_ie_len = 0;
+	/* Add if there is any extra IE */
+	if (mgmt_ie_buf && parsed_ie_buf_len) {
+		ptr = mgmt_ie_buf;
+
+		remained_buf_len = mgmt_ie_buf_len;
+
+		/* make a command to add new ie */
+		for (i = 0; i < new_vndr_ies.count; i++) {
+			vndrie_info = &new_vndr_ies.ie_info[i];
+
+			WL_TRACE("ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
+				 vndrie_info->vndrie.id,
+				 vndrie_info->vndrie.len,
+				 vndrie_info->vndrie.oui[0],
+				 vndrie_info->vndrie.oui[1],
+				 vndrie_info->vndrie.oui[2]);
+
+			del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
+							   vndrie_info->ie_ptr,
+							   vndrie_info->ie_len,
+							   "add");
+			/* verify remained buf size before copy data */
+			remained_buf_len -= vndrie_info->ie_len;
+			if (remained_buf_len < 0) {
+				WL_ERR("no space in mgmt_ie_buf: len left %d",
+					remained_buf_len);
+				break;
+			}
+
+			/* save the parsed IE in wl struct */
+			memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
+			       vndrie_info->ie_len);
+			*mgmt_ie_len += vndrie_info->ie_len;
+
+			curr_ie_buf += del_add_ie_buf_len;
+			total_ie_buf_len += del_add_ie_buf_len;
+		}
+	}
+	if (total_ie_buf_len) {
+		err  = brcmf_dev_iovar_setbuf_bsscfg(ndev, "vndr_ie",
+						     iovar_ie_buf,
+						     total_ie_buf_len,
+						     cfg->extra_buf,
+						     WL_EXTRA_BUF_MAX, bssidx);
+		if (err)
+			WL_ERR("vndr ie set error : %d\n", err);
+	}
+
+exit:
+	kfree(iovar_ie_buf);
+	return err;
+}
+
+static s32
+brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
+			struct cfg80211_ap_settings *settings)
+{
+	s32 ie_offset;
+	struct brcmf_tlv *ssid_ie;
+	struct brcmf_ssid_le ssid_le;
+	s32 ioctl_value;
+	s32 err = -EPERM;
+	struct brcmf_tlv *rsn_ie;
+	struct brcmf_vs_tlv *wpa_ie;
+	struct brcmf_join_params join_params;
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	s32 bssidx = 0;
+
+	WL_TRACE("channel_type=%d, beacon_interval=%d, dtim_period=%d,\n",
+		 settings->channel_type, settings->beacon_interval,
+		 settings->dtim_period);
+	WL_TRACE("ssid=%s(%d), auth_type=%d, inactivity_timeout=%d\n",
+		 settings->ssid, settings->ssid_len, settings->auth_type,
+		 settings->inactivity_timeout);
+
+	if (!test_bit(WL_STATUS_AP_CREATING, &cfg->status)) {
+		WL_ERR("Not in AP creation mode\n");
+		return -EPERM;
+	}
+
+	memset(&ssid_le, 0, sizeof(ssid_le));
+	if (settings->ssid == NULL || settings->ssid_len == 0) {
+		ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
+		ssid_ie = brcmf_parse_tlvs(
+				(u8 *)&settings->beacon.head[ie_offset],
+				settings->beacon.head_len - ie_offset,
+				WLAN_EID_SSID);
+		if (!ssid_ie)
+			return -EINVAL;
+
+		memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
+		ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
+		WL_TRACE("SSID is (%s) in Head\n", ssid_le.SSID);
+	} else {
+		memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
+		ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
+	}
+
+	brcmf_set_mpc(ndev, 0);
+	ioctl_value = 1;
+	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_DOWN, &ioctl_value);
+	if (err < 0) {
+		WL_ERR("BRCMF_C_DOWN error %d\n", err);
+		goto exit;
+	}
+	ioctl_value = 1;
+	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &ioctl_value);
+	if (err < 0) {
+		WL_ERR("SET INFRA error %d\n", err);
+		goto exit;
+	}
+	ioctl_value = 1;
+	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AP, &ioctl_value);
+	if (err < 0) {
+		WL_ERR("setting AP mode failed %d\n", err);
+		goto exit;
+	}
+
+	/* find the RSN_IE */
+	rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
+				  settings->beacon.tail_len, WLAN_EID_RSN);
+
+	/* find the WPA_IE */
+	wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
+				  settings->beacon.tail_len);
+
+	kfree(cfg->ap_info->rsn_ie);
+	cfg->ap_info->rsn_ie = NULL;
+	kfree(cfg->ap_info->wpa_ie);
+	cfg->ap_info->wpa_ie = NULL;
+
+	if ((wpa_ie != NULL || rsn_ie != NULL)) {
+		WL_TRACE("WPA(2) IE is found\n");
+		if (wpa_ie != NULL) {
+			/* WPA IE */
+			err = brcmf_configure_wpaie(ndev, wpa_ie, false,
+						    bssidx);
+			if (err < 0)
+				goto exit;
+			cfg->ap_info->wpa_ie = kmemdup(wpa_ie,
+							    wpa_ie->len +
+							    TLV_HDR_LEN,
+							    GFP_KERNEL);
+		} else {
+			/* RSN IE */
+			err = brcmf_configure_wpaie(ndev,
+				(struct brcmf_vs_tlv *)rsn_ie, true, bssidx);
+			if (err < 0)
+				goto exit;
+			cfg->ap_info->rsn_ie = kmemdup(rsn_ie,
+							    rsn_ie->len +
+							    TLV_HDR_LEN,
+							    GFP_KERNEL);
+		}
+		cfg->ap_info->security_mode = true;
+	} else {
+		WL_TRACE("No WPA(2) IEs found\n");
+		brcmf_configure_opensecurity(ndev, bssidx);
+		cfg->ap_info->security_mode = false;
+	}
+	/* Set Beacon IEs to FW */
+	err = brcmf_set_management_ie(cfg, ndev, bssidx,
+				      VNDR_IE_BEACON_FLAG,
+				      (u8 *)settings->beacon.tail,
+				      settings->beacon.tail_len);
+	if (err)
+		WL_ERR("Set Beacon IE Failed\n");
+	else
+		WL_TRACE("Applied Vndr IEs for Beacon\n");
+
+	/* Set Probe Response IEs to FW */
+	err = brcmf_set_management_ie(cfg, ndev, bssidx,
+				      VNDR_IE_PRBRSP_FLAG,
+				      (u8 *)settings->beacon.proberesp_ies,
+				      settings->beacon.proberesp_ies_len);
+	if (err)
+		WL_ERR("Set Probe Resp IE Failed\n");
+	else
+		WL_TRACE("Applied Vndr IEs for Probe Resp\n");
+
+	if (settings->beacon_interval) {
+		ioctl_value = settings->beacon_interval;
+		err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_BCNPRD,
+					  &ioctl_value);
+		if (err < 0) {
+			WL_ERR("Beacon Interval Set Error, %d\n", err);
+			goto exit;
+		}
+	}
+	if (settings->dtim_period) {
+		ioctl_value = settings->dtim_period;
+		err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_DTIMPRD,
+					  &ioctl_value);
+		if (err < 0) {
+			WL_ERR("DTIM Interval Set Error, %d\n", err);
+			goto exit;
+		}
+	}
+	ioctl_value = 1;
+	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_UP, &ioctl_value);
+	if (err < 0) {
+		WL_ERR("BRCMF_C_UP error (%d)\n", err);
+		goto exit;
+	}
+
+	memset(&join_params, 0, sizeof(join_params));
+	/* join parameters starts with ssid */
+	memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
+	/* create softap */
+	err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID, &join_params,
+			      sizeof(join_params));
+	if (err < 0) {
+		WL_ERR("SET SSID error (%d)\n", err);
+		goto exit;
+	}
+	clear_bit(WL_STATUS_AP_CREATING, &cfg->status);
+	set_bit(WL_STATUS_AP_CREATED, &cfg->status);
+
+exit:
+	if (err)
+		brcmf_set_mpc(ndev, 1);
+	return err;
+}
+
+static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	s32 ioctl_value;
+	s32 err = -EPERM;
+
+	WL_TRACE("Enter\n");
+
+	if (cfg->conf->mode == WL_MODE_AP) {
+		/* Due to most likely deauths outstanding we sleep */
+		/* first to make sure they get processed by fw. */
+		msleep(400);
+		ioctl_value = 0;
+		err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AP, &ioctl_value);
+		if (err < 0) {
+			WL_ERR("setting AP mode failed %d\n", err);
+			goto exit;
+		}
+		ioctl_value = 0;
+		err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_UP, &ioctl_value);
+		if (err < 0) {
+			WL_ERR("BRCMF_C_UP error %d\n", err);
+			goto exit;
+		}
+		brcmf_set_mpc(ndev, 1);
+		clear_bit(WL_STATUS_AP_CREATING, &cfg->status);
+		clear_bit(WL_STATUS_AP_CREATED, &cfg->status);
+	}
+exit:
+	return err;
+}
+
+static int
+brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
+			   u8 *mac)
+{
+	struct brcmf_scb_val_le scbval;
+	s32 err;
+
+	if (!mac)
+		return -EFAULT;
+
+	WL_TRACE("Enter %pM\n", mac);
+
+	if (!check_sys_up(wiphy))
+		return -EIO;
+
+	memcpy(&scbval.ea, mac, ETH_ALEN);
+	scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
+	err = brcmf_exec_dcmd(ndev, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
+			      &scbval, sizeof(scbval));
+	if (err)
+		WL_ERR("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
+
+	WL_TRACE("Exit\n");
+	return err;
+}
+
 static struct cfg80211_ops wl_cfg80211_ops = {
 	.change_virtual_intf = brcmf_cfg80211_change_iface,
 	.scan = brcmf_cfg80211_scan,
@@ -2745,7 +4369,18 @@ static struct cfg80211_ops wl_cfg80211_ops = {
 	.resume = brcmf_cfg80211_resume,
 	.set_pmksa = brcmf_cfg80211_set_pmksa,
 	.del_pmksa = brcmf_cfg80211_del_pmksa,
-	.flush_pmksa = brcmf_cfg80211_flush_pmksa
+	.flush_pmksa = brcmf_cfg80211_flush_pmksa,
+	.start_ap = brcmf_cfg80211_start_ap,
+	.stop_ap = brcmf_cfg80211_stop_ap,
+	.del_station = brcmf_cfg80211_del_station,
+#ifndef CONFIG_BRCMISCAN
+	/* scheduled scan need e-scan, which is mutual exclusive with i-scan */
+	.sched_scan_start = brcmf_cfg80211_sched_scan_start,
+	.sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
+#endif
+#ifdef CONFIG_NL80211_TESTMODE
+	.testmode_cmd = brcmf_cfg80211_testmode
+#endif
 };
 
 static s32 brcmf_mode_to_nl80211_iftype(s32 mode)
@@ -2764,8 +4399,18 @@ static s32 brcmf_mode_to_nl80211_iftype(s32 mode)
 	return err;
 }
 
-static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface,
-					  struct device *ndev)
+static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
+{
+#ifndef CONFIG_BRCMFISCAN
+	/* scheduled scan settings */
+	wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
+	wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
+	wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
+	wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
+#endif
+}
+
+static struct wireless_dev *brcmf_alloc_wdev(struct device *ndev)
 {
 	struct wireless_dev *wdev;
 	s32 err = 0;
@@ -2774,9 +4419,8 @@ static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface,
 	if (!wdev)
 		return ERR_PTR(-ENOMEM);
 
-	wdev->wiphy =
-	    wiphy_new(&wl_cfg80211_ops,
-		      sizeof(struct brcmf_cfg80211_priv) + sizeof_iface);
+	wdev->wiphy = wiphy_new(&wl_cfg80211_ops,
+				sizeof(struct brcmf_cfg80211_info));
 	if (!wdev->wiphy) {
 		WL_ERR("Could not allocate wiphy device\n");
 		err = -ENOMEM;
@@ -2785,8 +4429,9 @@ static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface,
 	set_wiphy_dev(wdev->wiphy, ndev);
 	wdev->wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
 	wdev->wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
-	wdev->wiphy->interface_modes =
-	    BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
+	wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+				       BIT(NL80211_IFTYPE_ADHOC) |
+				       BIT(NL80211_IFTYPE_AP);
 	wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
 	wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a;	/* Set
 						* it as 11a by default.
@@ -2802,6 +4447,7 @@ static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface,
 								 * save mode
 								 * by default
 								 */
+	brcmf_wiphy_pno_params(wdev->wiphy);
 	err = wiphy_register(wdev->wiphy);
 	if (err < 0) {
 		WL_ERR("Could not register wiphy device (%d)\n", err);
@@ -2818,9 +4464,9 @@ wiphy_new_out:
 	return ERR_PTR(err);
 }
 
-static void brcmf_free_wdev(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_free_wdev(struct brcmf_cfg80211_info *cfg)
 {
-	struct wireless_dev *wdev = cfg_priv->wdev;
+	struct wireless_dev *wdev = cfg->wdev;
 
 	if (!wdev) {
 		WL_ERR("wdev is invalid\n");
@@ -2829,10 +4475,10 @@ static void brcmf_free_wdev(struct brcmf_cfg80211_priv *cfg_priv)
 	wiphy_unregister(wdev->wiphy);
 	wiphy_free(wdev->wiphy);
 	kfree(wdev);
-	cfg_priv->wdev = NULL;
+	cfg->wdev = NULL;
 }
 
-static bool brcmf_is_linkup(struct brcmf_cfg80211_priv *cfg_priv,
+static bool brcmf_is_linkup(struct brcmf_cfg80211_info *cfg,
 			    const struct brcmf_event_msg *e)
 {
 	u32 event = be32_to_cpu(e->event_type);
@@ -2840,14 +4486,14 @@ static bool brcmf_is_linkup(struct brcmf_cfg80211_priv *cfg_priv,
 
 	if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
 		WL_CONN("Processing set ssid\n");
-		cfg_priv->link_up = true;
+		cfg->link_up = true;
 		return true;
 	}
 
 	return false;
 }
 
-static bool brcmf_is_linkdown(struct brcmf_cfg80211_priv *cfg_priv,
+static bool brcmf_is_linkdown(struct brcmf_cfg80211_info *cfg,
 			      const struct brcmf_event_msg *e)
 {
 	u32 event = be32_to_cpu(e->event_type);
@@ -2860,7 +4506,7 @@ static bool brcmf_is_linkdown(struct brcmf_cfg80211_priv *cfg_priv,
 	return false;
 }
 
-static bool brcmf_is_nonetwork(struct brcmf_cfg80211_priv *cfg_priv,
+static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
 			       const struct brcmf_event_msg *e)
 {
 	u32 event = be32_to_cpu(e->event_type);
@@ -2881,9 +4527,9 @@ static bool brcmf_is_nonetwork(struct brcmf_cfg80211_priv *cfg_priv,
 	return false;
 }
 
-static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
+	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
 
 	kfree(conn_info->req_ie);
 	conn_info->req_ie = NULL;
@@ -2893,30 +4539,30 @@ static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
 	conn_info->resp_ie_len = 0;
 }
 
-static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg)
 {
-	struct net_device *ndev = cfg_to_ndev(cfg_priv);
+	struct net_device *ndev = cfg_to_ndev(cfg);
 	struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
-	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
+	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
 	u32 req_len;
 	u32 resp_len;
 	s32 err = 0;
 
-	brcmf_clear_assoc_ies(cfg_priv);
+	brcmf_clear_assoc_ies(cfg);
 
-	err = brcmf_dev_bufvar_get(ndev, "assoc_info", cfg_priv->extra_buf,
+	err = brcmf_dev_bufvar_get(ndev, "assoc_info", cfg->extra_buf,
 				WL_ASSOC_INFO_MAX);
 	if (err) {
 		WL_ERR("could not get assoc info (%d)\n", err);
 		return err;
 	}
 	assoc_info =
-		(struct brcmf_cfg80211_assoc_ielen_le *)cfg_priv->extra_buf;
+		(struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
 	req_len = le32_to_cpu(assoc_info->req_len);
 	resp_len = le32_to_cpu(assoc_info->resp_len);
 	if (req_len) {
 		err = brcmf_dev_bufvar_get(ndev, "assoc_req_ies",
-					   cfg_priv->extra_buf,
+					   cfg->extra_buf,
 					   WL_ASSOC_INFO_MAX);
 		if (err) {
 			WL_ERR("could not get assoc req (%d)\n", err);
@@ -2924,7 +4570,7 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
 		}
 		conn_info->req_ie_len = req_len;
 		conn_info->req_ie =
-		    kmemdup(cfg_priv->extra_buf, conn_info->req_ie_len,
+		    kmemdup(cfg->extra_buf, conn_info->req_ie_len,
 			    GFP_KERNEL);
 	} else {
 		conn_info->req_ie_len = 0;
@@ -2932,7 +4578,7 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
 	}
 	if (resp_len) {
 		err = brcmf_dev_bufvar_get(ndev, "assoc_resp_ies",
-					   cfg_priv->extra_buf,
+					   cfg->extra_buf,
 					   WL_ASSOC_INFO_MAX);
 		if (err) {
 			WL_ERR("could not get assoc resp (%d)\n", err);
@@ -2940,7 +4586,7 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
 		}
 		conn_info->resp_ie_len = resp_len;
 		conn_info->resp_ie =
-		    kmemdup(cfg_priv->extra_buf, conn_info->resp_ie_len,
+		    kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
 			    GFP_KERNEL);
 	} else {
 		conn_info->resp_ie_len = 0;
@@ -2953,12 +4599,13 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
 }
 
 static s32
-brcmf_bss_roaming_done(struct brcmf_cfg80211_priv *cfg_priv,
+brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
 		       struct net_device *ndev,
 		       const struct brcmf_event_msg *e)
 {
-	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
-	struct wiphy *wiphy = cfg_to_wiphy(cfg_priv);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
+	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
+	struct wiphy *wiphy = cfg_to_wiphy(cfg);
 	struct brcmf_channel_info_le channel_le;
 	struct ieee80211_channel *notify_channel;
 	struct ieee80211_supported_band *band;
@@ -2968,9 +4615,9 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_priv *cfg_priv,
 
 	WL_TRACE("Enter\n");
 
-	brcmf_get_assoc_ies(cfg_priv);
-	brcmf_update_prof(cfg_priv, NULL, &e->addr, WL_PROF_BSSID);
-	brcmf_update_bss_info(cfg_priv);
+	brcmf_get_assoc_ies(cfg);
+	memcpy(profile->bssid, e->addr, ETH_ALEN);
+	brcmf_update_bss_info(cfg);
 
 	brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_le,
 			sizeof(channel_le));
@@ -2986,37 +4633,35 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_priv *cfg_priv,
 	freq = ieee80211_channel_to_frequency(target_channel, band->band);
 	notify_channel = ieee80211_get_channel(wiphy, freq);
 
-	cfg80211_roamed(ndev, notify_channel,
-			(u8 *)brcmf_read_prof(cfg_priv, WL_PROF_BSSID),
+	cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
 			conn_info->req_ie, conn_info->req_ie_len,
 			conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
 	WL_CONN("Report roaming result\n");
 
-	set_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
+	set_bit(WL_STATUS_CONNECTED, &cfg->status);
 	WL_TRACE("Exit\n");
 	return err;
 }
 
 static s32
-brcmf_bss_connect_done(struct brcmf_cfg80211_priv *cfg_priv,
+brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
 		       struct net_device *ndev, const struct brcmf_event_msg *e,
 		       bool completed)
 {
-	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
+	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
 	s32 err = 0;
 
 	WL_TRACE("Enter\n");
 
-	if (test_and_clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) {
+	if (test_and_clear_bit(WL_STATUS_CONNECTING, &cfg->status)) {
 		if (completed) {
-			brcmf_get_assoc_ies(cfg_priv);
-			brcmf_update_prof(cfg_priv, NULL, &e->addr,
-					  WL_PROF_BSSID);
-			brcmf_update_bss_info(cfg_priv);
+			brcmf_get_assoc_ies(cfg);
+			memcpy(profile->bssid, e->addr, ETH_ALEN);
+			brcmf_update_bss_info(cfg);
 		}
 		cfg80211_connect_result(ndev,
-					(u8 *)brcmf_read_prof(cfg_priv,
-							      WL_PROF_BSSID),
+					(u8 *)profile->bssid,
 					conn_info->req_ie,
 					conn_info->req_ie_len,
 					conn_info->resp_ie,
@@ -3025,7 +4670,7 @@ brcmf_bss_connect_done(struct brcmf_cfg80211_priv *cfg_priv,
 						    WLAN_STATUS_AUTH_TIMEOUT,
 					GFP_KERNEL);
 		if (completed)
-			set_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
+			set_bit(WL_STATUS_CONNECTED, &cfg->status);
 		WL_CONN("Report connect result - connection %s\n",
 				completed ? "succeeded" : "failed");
 	}
@@ -3034,52 +4679,93 @@ brcmf_bss_connect_done(struct brcmf_cfg80211_priv *cfg_priv,
 }
 
 static s32
-brcmf_notify_connect_status(struct brcmf_cfg80211_priv *cfg_priv,
+brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
+			       struct net_device *ndev,
+			       const struct brcmf_event_msg *e, void *data)
+{
+	s32 err = 0;
+	u32 event = be32_to_cpu(e->event_type);
+	u32 reason = be32_to_cpu(e->reason);
+	u32 len = be32_to_cpu(e->datalen);
+	static int generation;
+
+	struct station_info sinfo;
+
+	WL_CONN("event %d, reason %d\n", event, reason);
+	memset(&sinfo, 0, sizeof(sinfo));
+
+	sinfo.filled = 0;
+	if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
+	    reason == BRCMF_E_STATUS_SUCCESS) {
+		sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
+		if (!data) {
+			WL_ERR("No IEs present in ASSOC/REASSOC_IND");
+			return -EINVAL;
+		}
+		sinfo.assoc_req_ies = data;
+		sinfo.assoc_req_ies_len = len;
+		generation++;
+		sinfo.generation = generation;
+		cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_ATOMIC);
+	} else if ((event == BRCMF_E_DISASSOC_IND) ||
+		   (event == BRCMF_E_DEAUTH_IND) ||
+		   (event == BRCMF_E_DEAUTH)) {
+		generation++;
+		sinfo.generation = generation;
+		cfg80211_del_sta(ndev, e->addr, GFP_ATOMIC);
+	}
+	return err;
+}
+
+static s32
+brcmf_notify_connect_status(struct brcmf_cfg80211_info *cfg,
 			    struct net_device *ndev,
 			    const struct brcmf_event_msg *e, void *data)
 {
+	struct brcmf_cfg80211_profile *profile = cfg->profile;
 	s32 err = 0;
 
-	if (brcmf_is_linkup(cfg_priv, e)) {
+	if (cfg->conf->mode == WL_MODE_AP) {
+		err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
+	} else if (brcmf_is_linkup(cfg, e)) {
 		WL_CONN("Linkup\n");
-		if (brcmf_is_ibssmode(cfg_priv)) {
-			brcmf_update_prof(cfg_priv, NULL, (void *)e->addr,
-				WL_PROF_BSSID);
-			wl_inform_ibss(cfg_priv, ndev, e->addr);
+		if (brcmf_is_ibssmode(cfg)) {
+			memcpy(profile->bssid, e->addr, ETH_ALEN);
+			wl_inform_ibss(cfg, ndev, e->addr);
 			cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
-			clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
-			set_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
+			clear_bit(WL_STATUS_CONNECTING, &cfg->status);
+			set_bit(WL_STATUS_CONNECTED, &cfg->status);
 		} else
-			brcmf_bss_connect_done(cfg_priv, ndev, e, true);
-	} else if (brcmf_is_linkdown(cfg_priv, e)) {
+			brcmf_bss_connect_done(cfg, ndev, e, true);
+	} else if (brcmf_is_linkdown(cfg, e)) {
 		WL_CONN("Linkdown\n");
-		if (brcmf_is_ibssmode(cfg_priv)) {
-			clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
+		if (brcmf_is_ibssmode(cfg)) {
+			clear_bit(WL_STATUS_CONNECTING, &cfg->status);
 			if (test_and_clear_bit(WL_STATUS_CONNECTED,
-				&cfg_priv->status))
-				brcmf_link_down(cfg_priv);
+				&cfg->status))
+				brcmf_link_down(cfg);
 		} else {
-			brcmf_bss_connect_done(cfg_priv, ndev, e, false);
+			brcmf_bss_connect_done(cfg, ndev, e, false);
 			if (test_and_clear_bit(WL_STATUS_CONNECTED,
-				&cfg_priv->status)) {
+				&cfg->status)) {
 				cfg80211_disconnected(ndev, 0, NULL, 0,
 					GFP_KERNEL);
-				brcmf_link_down(cfg_priv);
+				brcmf_link_down(cfg);
 			}
 		}
-		brcmf_init_prof(cfg_priv->profile);
-	} else if (brcmf_is_nonetwork(cfg_priv, e)) {
-		if (brcmf_is_ibssmode(cfg_priv))
-			clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
+		brcmf_init_prof(cfg->profile);
+	} else if (brcmf_is_nonetwork(cfg, e)) {
+		if (brcmf_is_ibssmode(cfg))
+			clear_bit(WL_STATUS_CONNECTING, &cfg->status);
 		else
-			brcmf_bss_connect_done(cfg_priv, ndev, e, false);
+			brcmf_bss_connect_done(cfg, ndev, e, false);
 	}
 
 	return err;
 }
 
 static s32
-brcmf_notify_roaming_status(struct brcmf_cfg80211_priv *cfg_priv,
+brcmf_notify_roaming_status(struct brcmf_cfg80211_info *cfg,
 			    struct net_device *ndev,
 			    const struct brcmf_event_msg *e, void *data)
 {
@@ -3088,17 +4774,17 @@ brcmf_notify_roaming_status(struct brcmf_cfg80211_priv *cfg_priv,
 	u32 status = be32_to_cpu(e->status);
 
 	if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
-		if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status))
-			brcmf_bss_roaming_done(cfg_priv, ndev, e);
+		if (test_bit(WL_STATUS_CONNECTED, &cfg->status))
+			brcmf_bss_roaming_done(cfg, ndev, e);
 		else
-			brcmf_bss_connect_done(cfg_priv, ndev, e, true);
+			brcmf_bss_connect_done(cfg, ndev, e, true);
 	}
 
 	return err;
 }
 
 static s32
-brcmf_notify_mic_status(struct brcmf_cfg80211_priv *cfg_priv,
+brcmf_notify_mic_status(struct brcmf_cfg80211_info *cfg,
 			struct net_device *ndev,
 			const struct brcmf_event_msg *e, void *data)
 {
@@ -3117,7 +4803,7 @@ brcmf_notify_mic_status(struct brcmf_cfg80211_priv *cfg_priv,
 }
 
 static s32
-brcmf_notify_scan_status(struct brcmf_cfg80211_priv *cfg_priv,
+brcmf_notify_scan_status(struct brcmf_cfg80211_info *cfg,
 			 struct net_device *ndev,
 			 const struct brcmf_event_msg *e, void *data)
 {
@@ -3130,12 +4816,12 @@ brcmf_notify_scan_status(struct brcmf_cfg80211_priv *cfg_priv,
 
 	WL_TRACE("Enter\n");
 
-	if (cfg_priv->iscan_on && cfg_priv->iscan_kickstart) {
+	if (cfg->iscan_on && cfg->iscan_kickstart) {
 		WL_TRACE("Exit\n");
-		return brcmf_wakeup_iscan(cfg_to_iscan(cfg_priv));
+		return brcmf_wakeup_iscan(cfg_to_iscan(cfg));
 	}
 
-	if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) {
+	if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg->status)) {
 		WL_ERR("Scan complete while device not scanning\n");
 		scan_abort = true;
 		err = -EINVAL;
@@ -3152,35 +4838,33 @@ brcmf_notify_scan_status(struct brcmf_cfg80211_priv *cfg_priv,
 	scan_channel = le32_to_cpu(channel_inform_le.scan_channel);
 	if (scan_channel)
 		WL_CONN("channel_inform.scan_channel (%d)\n", scan_channel);
-	cfg_priv->bss_list = cfg_priv->scan_results;
-	bss_list_le = (struct brcmf_scan_results_le *) cfg_priv->bss_list;
+	cfg->bss_list = cfg->scan_results;
+	bss_list_le = (struct brcmf_scan_results_le *) cfg->bss_list;
 
-	memset(cfg_priv->scan_results, 0, len);
+	memset(cfg->scan_results, 0, len);
 	bss_list_le->buflen = cpu_to_le32(len);
 	err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN_RESULTS,
-			      cfg_priv->scan_results, len);
+			      cfg->scan_results, len);
 	if (err) {
 		WL_ERR("%s Scan_results error (%d)\n", ndev->name, err);
 		err = -EINVAL;
 		scan_abort = true;
 		goto scan_done_out;
 	}
-	cfg_priv->scan_results->buflen = le32_to_cpu(bss_list_le->buflen);
-	cfg_priv->scan_results->version = le32_to_cpu(bss_list_le->version);
-	cfg_priv->scan_results->count = le32_to_cpu(bss_list_le->count);
+	cfg->scan_results->buflen = le32_to_cpu(bss_list_le->buflen);
+	cfg->scan_results->version = le32_to_cpu(bss_list_le->version);
+	cfg->scan_results->count = le32_to_cpu(bss_list_le->count);
 
-	err = brcmf_inform_bss(cfg_priv);
-	if (err) {
+	err = brcmf_inform_bss(cfg);
+	if (err)
 		scan_abort = true;
-		goto scan_done_out;
-	}
 
 scan_done_out:
-	if (cfg_priv->scan_request) {
+	if (cfg->scan_request) {
 		WL_SCAN("calling cfg80211_scan_done\n");
-		cfg80211_scan_done(cfg_priv->scan_request, scan_abort);
+		cfg80211_scan_done(cfg->scan_request, scan_abort);
 		brcmf_set_mpc(ndev, 1);
-		cfg_priv->scan_request = NULL;
+		cfg->scan_request = NULL;
 	}
 
 	WL_TRACE("Exit\n");
@@ -3203,68 +4887,85 @@ static void brcmf_init_eloop_handler(struct brcmf_cfg80211_event_loop *el)
 	memset(el, 0, sizeof(*el));
 	el->handler[BRCMF_E_SCAN_COMPLETE] = brcmf_notify_scan_status;
 	el->handler[BRCMF_E_LINK] = brcmf_notify_connect_status;
+	el->handler[BRCMF_E_DEAUTH_IND] = brcmf_notify_connect_status;
+	el->handler[BRCMF_E_DEAUTH] = brcmf_notify_connect_status;
+	el->handler[BRCMF_E_DISASSOC_IND] = brcmf_notify_connect_status;
+	el->handler[BRCMF_E_ASSOC_IND] = brcmf_notify_connect_status;
+	el->handler[BRCMF_E_REASSOC_IND] = brcmf_notify_connect_status;
 	el->handler[BRCMF_E_ROAM] = brcmf_notify_roaming_status;
 	el->handler[BRCMF_E_MIC_ERROR] = brcmf_notify_mic_status;
 	el->handler[BRCMF_E_SET_SSID] = brcmf_notify_connect_status;
+	el->handler[BRCMF_E_PFN_NET_FOUND] = brcmf_notify_sched_scan_results;
+}
+
+static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
+{
+	kfree(cfg->scan_results);
+	cfg->scan_results = NULL;
+	kfree(cfg->bss_info);
+	cfg->bss_info = NULL;
+	kfree(cfg->conf);
+	cfg->conf = NULL;
+	kfree(cfg->profile);
+	cfg->profile = NULL;
+	kfree(cfg->scan_req_int);
+	cfg->scan_req_int = NULL;
+	kfree(cfg->escan_ioctl_buf);
+	cfg->escan_ioctl_buf = NULL;
+	kfree(cfg->dcmd_buf);
+	cfg->dcmd_buf = NULL;
+	kfree(cfg->extra_buf);
+	cfg->extra_buf = NULL;
+	kfree(cfg->iscan);
+	cfg->iscan = NULL;
+	kfree(cfg->pmk_list);
+	cfg->pmk_list = NULL;
+	if (cfg->ap_info) {
+		kfree(cfg->ap_info->wpa_ie);
+		kfree(cfg->ap_info->rsn_ie);
+		kfree(cfg->ap_info);
+		cfg->ap_info = NULL;
+	}
 }
 
-static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_priv *cfg_priv)
-{
-	kfree(cfg_priv->scan_results);
-	cfg_priv->scan_results = NULL;
-	kfree(cfg_priv->bss_info);
-	cfg_priv->bss_info = NULL;
-	kfree(cfg_priv->conf);
-	cfg_priv->conf = NULL;
-	kfree(cfg_priv->profile);
-	cfg_priv->profile = NULL;
-	kfree(cfg_priv->scan_req_int);
-	cfg_priv->scan_req_int = NULL;
-	kfree(cfg_priv->dcmd_buf);
-	cfg_priv->dcmd_buf = NULL;
-	kfree(cfg_priv->extra_buf);
-	cfg_priv->extra_buf = NULL;
-	kfree(cfg_priv->iscan);
-	cfg_priv->iscan = NULL;
-	kfree(cfg_priv->pmk_list);
-	cfg_priv->pmk_list = NULL;
-}
-
-static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_priv *cfg_priv)
-{
-	cfg_priv->scan_results = kzalloc(WL_SCAN_BUF_MAX, GFP_KERNEL);
-	if (!cfg_priv->scan_results)
+static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
+{
+	cfg->scan_results = kzalloc(WL_SCAN_BUF_MAX, GFP_KERNEL);
+	if (!cfg->scan_results)
 		goto init_priv_mem_out;
-	cfg_priv->conf = kzalloc(sizeof(*cfg_priv->conf), GFP_KERNEL);
-	if (!cfg_priv->conf)
+	cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
+	if (!cfg->conf)
 		goto init_priv_mem_out;
-	cfg_priv->profile = kzalloc(sizeof(*cfg_priv->profile), GFP_KERNEL);
-	if (!cfg_priv->profile)
+	cfg->profile = kzalloc(sizeof(*cfg->profile), GFP_KERNEL);
+	if (!cfg->profile)
 		goto init_priv_mem_out;
-	cfg_priv->bss_info = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
-	if (!cfg_priv->bss_info)
+	cfg->bss_info = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
+	if (!cfg->bss_info)
 		goto init_priv_mem_out;
-	cfg_priv->scan_req_int = kzalloc(sizeof(*cfg_priv->scan_req_int),
+	cfg->scan_req_int = kzalloc(sizeof(*cfg->scan_req_int),
 					 GFP_KERNEL);
-	if (!cfg_priv->scan_req_int)
+	if (!cfg->scan_req_int)
+		goto init_priv_mem_out;
+	cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
+	if (!cfg->escan_ioctl_buf)
 		goto init_priv_mem_out;
-	cfg_priv->dcmd_buf = kzalloc(WL_DCMD_LEN_MAX, GFP_KERNEL);
-	if (!cfg_priv->dcmd_buf)
+	cfg->dcmd_buf = kzalloc(WL_DCMD_LEN_MAX, GFP_KERNEL);
+	if (!cfg->dcmd_buf)
 		goto init_priv_mem_out;
-	cfg_priv->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
-	if (!cfg_priv->extra_buf)
+	cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
+	if (!cfg->extra_buf)
 		goto init_priv_mem_out;
-	cfg_priv->iscan = kzalloc(sizeof(*cfg_priv->iscan), GFP_KERNEL);
-	if (!cfg_priv->iscan)
+	cfg->iscan = kzalloc(sizeof(*cfg->iscan), GFP_KERNEL);
+	if (!cfg->iscan)
 		goto init_priv_mem_out;
-	cfg_priv->pmk_list = kzalloc(sizeof(*cfg_priv->pmk_list), GFP_KERNEL);
-	if (!cfg_priv->pmk_list)
+	cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
+	if (!cfg->pmk_list)
 		goto init_priv_mem_out;
 
 	return 0;
 
 init_priv_mem_out:
-	brcmf_deinit_priv_mem(cfg_priv);
+	brcmf_deinit_priv_mem(cfg);
 
 	return -ENOMEM;
 }
@@ -3274,17 +4975,17 @@ init_priv_mem_out:
 */
 
 static struct brcmf_cfg80211_event_q *brcmf_deq_event(
-	struct brcmf_cfg80211_priv *cfg_priv)
+	struct brcmf_cfg80211_info *cfg)
 {
 	struct brcmf_cfg80211_event_q *e = NULL;
 
-	spin_lock_irq(&cfg_priv->evt_q_lock);
-	if (!list_empty(&cfg_priv->evt_q_list)) {
-		e = list_first_entry(&cfg_priv->evt_q_list,
+	spin_lock_irq(&cfg->evt_q_lock);
+	if (!list_empty(&cfg->evt_q_list)) {
+		e = list_first_entry(&cfg->evt_q_list,
 				     struct brcmf_cfg80211_event_q, evt_q_list);
 		list_del(&e->evt_q_list);
 	}
-	spin_unlock_irq(&cfg_priv->evt_q_lock);
+	spin_unlock_irq(&cfg->evt_q_lock);
 
 	return e;
 }
@@ -3296,23 +4997,33 @@ static struct brcmf_cfg80211_event_q *brcmf_deq_event(
 */
 
 static s32
-brcmf_enq_event(struct brcmf_cfg80211_priv *cfg_priv, u32 event,
-		const struct brcmf_event_msg *msg)
+brcmf_enq_event(struct brcmf_cfg80211_info *cfg, u32 event,
+		const struct brcmf_event_msg *msg, void *data)
 {
 	struct brcmf_cfg80211_event_q *e;
 	s32 err = 0;
 	ulong flags;
+	u32 data_len;
+	u32 total_len;
 
-	e = kzalloc(sizeof(struct brcmf_cfg80211_event_q), GFP_ATOMIC);
+	total_len = sizeof(struct brcmf_cfg80211_event_q);
+	if (data)
+		data_len = be32_to_cpu(msg->datalen);
+	else
+		data_len = 0;
+	total_len += data_len;
+	e = kzalloc(total_len, GFP_ATOMIC);
 	if (!e)
 		return -ENOMEM;
 
 	e->etype = event;
 	memcpy(&e->emsg, msg, sizeof(struct brcmf_event_msg));
+	if (data)
+		memcpy(&e->edata, data, data_len);
 
-	spin_lock_irqsave(&cfg_priv->evt_q_lock, flags);
-	list_add_tail(&e->evt_q_list, &cfg_priv->evt_q_list);
-	spin_unlock_irqrestore(&cfg_priv->evt_q_lock, flags);
+	spin_lock_irqsave(&cfg->evt_q_lock, flags);
+	list_add_tail(&e->evt_q_list, &cfg->evt_q_list);
+	spin_unlock_irqrestore(&cfg->evt_q_lock, flags);
 
 	return err;
 }
@@ -3324,12 +5035,12 @@ static void brcmf_put_event(struct brcmf_cfg80211_event_q *e)
 
 static void brcmf_cfg80211_event_handler(struct work_struct *work)
 {
-	struct brcmf_cfg80211_priv *cfg_priv =
-			container_of(work, struct brcmf_cfg80211_priv,
+	struct brcmf_cfg80211_info *cfg =
+			container_of(work, struct brcmf_cfg80211_info,
 				     event_work);
 	struct brcmf_cfg80211_event_q *e;
 
-	e = brcmf_deq_event(cfg_priv);
+	e = brcmf_deq_event(cfg);
 	if (unlikely(!e)) {
 		WL_ERR("event queue empty...\n");
 		return;
@@ -3337,137 +5048,131 @@ static void brcmf_cfg80211_event_handler(struct work_struct *work)
 
 	do {
 		WL_INFO("event type (%d)\n", e->etype);
-		if (cfg_priv->el.handler[e->etype])
-			cfg_priv->el.handler[e->etype](cfg_priv,
-						       cfg_to_ndev(cfg_priv),
+		if (cfg->el.handler[e->etype])
+			cfg->el.handler[e->etype](cfg,
+						       cfg_to_ndev(cfg),
 						       &e->emsg, e->edata);
 		else
 			WL_INFO("Unknown Event (%d): ignoring\n", e->etype);
 		brcmf_put_event(e);
-	} while ((e = brcmf_deq_event(cfg_priv)));
+	} while ((e = brcmf_deq_event(cfg)));
 
 }
 
-static void brcmf_init_eq(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_init_eq(struct brcmf_cfg80211_info *cfg)
 {
-	spin_lock_init(&cfg_priv->evt_q_lock);
-	INIT_LIST_HEAD(&cfg_priv->evt_q_list);
+	spin_lock_init(&cfg->evt_q_lock);
+	INIT_LIST_HEAD(&cfg->evt_q_list);
 }
 
-static void brcmf_flush_eq(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_flush_eq(struct brcmf_cfg80211_info *cfg)
 {
 	struct brcmf_cfg80211_event_q *e;
 
-	spin_lock_irq(&cfg_priv->evt_q_lock);
-	while (!list_empty(&cfg_priv->evt_q_list)) {
-		e = list_first_entry(&cfg_priv->evt_q_list,
+	spin_lock_irq(&cfg->evt_q_lock);
+	while (!list_empty(&cfg->evt_q_list)) {
+		e = list_first_entry(&cfg->evt_q_list,
 				     struct brcmf_cfg80211_event_q, evt_q_list);
 		list_del(&e->evt_q_list);
 		kfree(e);
 	}
-	spin_unlock_irq(&cfg_priv->evt_q_lock);
+	spin_unlock_irq(&cfg->evt_q_lock);
 }
 
-static s32 wl_init_priv(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
 {
 	s32 err = 0;
 
-	cfg_priv->scan_request = NULL;
-	cfg_priv->pwr_save = true;
-	cfg_priv->iscan_on = true;	/* iscan on & off switch.
+	cfg->scan_request = NULL;
+	cfg->pwr_save = true;
+#ifdef CONFIG_BRCMISCAN
+	cfg->iscan_on = true;	/* iscan on & off switch.
 				 we enable iscan per default */
-	cfg_priv->roam_on = true;	/* roam on & off switch.
+	cfg->escan_on = false;	/* escan on & off switch.
+				 we disable escan per default */
+#else
+	cfg->iscan_on = false;	/* iscan on & off switch.
+				 we disable iscan per default */
+	cfg->escan_on = true;	/* escan on & off switch.
+				 we enable escan per default */
+#endif
+	cfg->roam_on = true;	/* roam on & off switch.
 				 we enable roam per default */
 
-	cfg_priv->iscan_kickstart = false;
-	cfg_priv->active_scan = true;	/* we do active scan for
+	cfg->iscan_kickstart = false;
+	cfg->active_scan = true;	/* we do active scan for
 				 specific scan per default */
-	cfg_priv->dongle_up = false;	/* dongle is not up yet */
-	brcmf_init_eq(cfg_priv);
-	err = brcmf_init_priv_mem(cfg_priv);
+	cfg->dongle_up = false;	/* dongle is not up yet */
+	brcmf_init_eq(cfg);
+	err = brcmf_init_priv_mem(cfg);
 	if (err)
 		return err;
-	INIT_WORK(&cfg_priv->event_work, brcmf_cfg80211_event_handler);
-	brcmf_init_eloop_handler(&cfg_priv->el);
-	mutex_init(&cfg_priv->usr_sync);
-	err = brcmf_init_iscan(cfg_priv);
+	INIT_WORK(&cfg->event_work, brcmf_cfg80211_event_handler);
+	brcmf_init_eloop_handler(&cfg->el);
+	mutex_init(&cfg->usr_sync);
+	err = brcmf_init_iscan(cfg);
 	if (err)
 		return err;
-	brcmf_init_conf(cfg_priv->conf);
-	brcmf_init_prof(cfg_priv->profile);
-	brcmf_link_down(cfg_priv);
+	brcmf_init_escan(cfg);
+	brcmf_init_conf(cfg->conf);
+	brcmf_init_prof(cfg->profile);
+	brcmf_link_down(cfg);
 
 	return err;
 }
 
-static void wl_deinit_priv(struct brcmf_cfg80211_priv *cfg_priv)
+static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
 {
-	cancel_work_sync(&cfg_priv->event_work);
-	cfg_priv->dongle_up = false;	/* dongle down */
-	brcmf_flush_eq(cfg_priv);
-	brcmf_link_down(cfg_priv);
-	brcmf_term_iscan(cfg_priv);
-	brcmf_deinit_priv_mem(cfg_priv);
+	cancel_work_sync(&cfg->event_work);
+	cfg->dongle_up = false;	/* dongle down */
+	brcmf_flush_eq(cfg);
+	brcmf_link_down(cfg);
+	brcmf_abort_scanning(cfg);
+	brcmf_deinit_priv_mem(cfg);
 }
 
-struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev,
-						 struct device *busdev,
-						 void *data)
+struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct net_device *ndev,
+						  struct device *busdev,
+						  struct brcmf_pub *drvr)
 {
 	struct wireless_dev *wdev;
-	struct brcmf_cfg80211_priv *cfg_priv;
-	struct brcmf_cfg80211_iface *ci;
-	struct brcmf_cfg80211_dev *cfg_dev;
+	struct brcmf_cfg80211_info *cfg;
 	s32 err = 0;
 
 	if (!ndev) {
 		WL_ERR("ndev is invalid\n");
 		return NULL;
 	}
-	cfg_dev = kzalloc(sizeof(struct brcmf_cfg80211_dev), GFP_KERNEL);
-	if (!cfg_dev)
-		return NULL;
 
-	wdev = brcmf_alloc_wdev(sizeof(struct brcmf_cfg80211_iface), busdev);
+	wdev = brcmf_alloc_wdev(busdev);
 	if (IS_ERR(wdev)) {
-		kfree(cfg_dev);
 		return NULL;
 	}
 
 	wdev->iftype = brcmf_mode_to_nl80211_iftype(WL_MODE_BSS);
-	cfg_priv = wdev_to_cfg(wdev);
-	cfg_priv->wdev = wdev;
-	cfg_priv->pub = data;
-	ci = (struct brcmf_cfg80211_iface *)&cfg_priv->ci;
-	ci->cfg_priv = cfg_priv;
+	cfg = wdev_to_cfg(wdev);
+	cfg->wdev = wdev;
+	cfg->pub = drvr;
 	ndev->ieee80211_ptr = wdev;
 	SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
 	wdev->netdev = ndev;
-	err = wl_init_priv(cfg_priv);
+	err = wl_init_priv(cfg);
 	if (err) {
 		WL_ERR("Failed to init iwm_priv (%d)\n", err);
 		goto cfg80211_attach_out;
 	}
-	brcmf_set_drvdata(cfg_dev, ci);
 
-	return cfg_dev;
+	return cfg;
 
 cfg80211_attach_out:
-	brcmf_free_wdev(cfg_priv);
-	kfree(cfg_dev);
+	brcmf_free_wdev(cfg);
 	return NULL;
 }
 
-void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg_dev)
+void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_priv *cfg_priv;
-
-	cfg_priv = brcmf_priv_get(cfg_dev);
-
-	wl_deinit_priv(cfg_priv);
-	brcmf_free_wdev(cfg_priv);
-	brcmf_set_drvdata(cfg_dev, NULL);
-	kfree(cfg_dev);
+	wl_deinit_priv(cfg);
+	brcmf_free_wdev(cfg);
 }
 
 void
@@ -3475,10 +5180,10 @@ brcmf_cfg80211_event(struct net_device *ndev,
 		  const struct brcmf_event_msg *e, void *data)
 {
 	u32 event_type = be32_to_cpu(e->event_type);
-	struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
+	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
 
-	if (!brcmf_enq_event(cfg_priv, event_type, e))
-		schedule_work(&cfg_priv->event_work);
+	if (!brcmf_enq_event(cfg, event_type, e, data))
+		schedule_work(&cfg->event_work);
 }
 
 static s32 brcmf_dongle_mode(struct net_device *ndev, s32 iftype)
@@ -3499,6 +5204,9 @@ static s32 brcmf_dongle_mode(struct net_device *ndev, s32 iftype)
 	case NL80211_IFTYPE_STATION:
 		infra = 1;
 		break;
+	case NL80211_IFTYPE_AP:
+		infra = 1;
+		break;
 	default:
 		err = -EINVAL;
 		WL_ERR("invalid type (%d)\n", iftype);
@@ -3551,6 +5259,8 @@ static s32 brcmf_dongle_eventmsg(struct net_device *ndev)
 	setbit(eventmask, BRCMF_E_TXFAIL);
 	setbit(eventmask, BRCMF_E_JOIN_START);
 	setbit(eventmask, BRCMF_E_SCAN_COMPLETE);
+	setbit(eventmask, BRCMF_E_ESCAN_RESULT);
+	setbit(eventmask, BRCMF_E_PFN_NET_FOUND);
 
 	brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN,
 			iovbuf, sizeof(iovbuf));
@@ -3669,46 +5379,46 @@ dongle_scantime_out:
 	return err;
 }
 
-static s32 wl_update_wiphybands(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 wl_update_wiphybands(struct brcmf_cfg80211_info *cfg)
 {
 	struct wiphy *wiphy;
 	s32 phy_list;
 	s8 phy;
 	s32 err = 0;
 
-	err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCM_GET_PHYLIST,
+	err = brcmf_exec_dcmd(cfg_to_ndev(cfg), BRCM_GET_PHYLIST,
 			      &phy_list, sizeof(phy_list));
 	if (err) {
 		WL_ERR("error (%d)\n", err);
 		return err;
 	}
 
-	phy = ((char *)&phy_list)[1];
+	phy = ((char *)&phy_list)[0];
 	WL_INFO("%c phy\n", phy);
 	if (phy == 'n' || phy == 'a') {
-		wiphy = cfg_to_wiphy(cfg_priv);
+		wiphy = cfg_to_wiphy(cfg);
 		wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n;
 	}
 
 	return err;
 }
 
-static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_info *cfg)
 {
-	return wl_update_wiphybands(cfg_priv);
+	return wl_update_wiphybands(cfg);
 }
 
-static s32 brcmf_config_dongle(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
 {
 	struct net_device *ndev;
 	struct wireless_dev *wdev;
 	s32 power_mode;
 	s32 err = 0;
 
-	if (cfg_priv->dongle_up)
+	if (cfg->dongle_up)
 		return err;
 
-	ndev = cfg_to_ndev(cfg_priv);
+	ndev = cfg_to_ndev(cfg);
 	wdev = ndev->ieee80211_ptr;
 
 	brcmf_dongle_scantime(ndev, WL_SCAN_CHANNEL_TIME,
@@ -3718,21 +5428,21 @@ static s32 brcmf_config_dongle(struct brcmf_cfg80211_priv *cfg_priv)
 	if (err)
 		goto default_conf_out;
 
-	power_mode = cfg_priv->pwr_save ? PM_FAST : PM_OFF;
+	power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
 	err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &power_mode);
 	if (err)
 		goto default_conf_out;
 	WL_INFO("power save set to %s\n",
 		(power_mode ? "enabled" : "disabled"));
 
-	err = brcmf_dongle_roam(ndev, (cfg_priv->roam_on ? 0 : 1),
+	err = brcmf_dongle_roam(ndev, (cfg->roam_on ? 0 : 1),
 				WL_BEACON_TIMEOUT);
 	if (err)
 		goto default_conf_out;
 	err = brcmf_dongle_mode(ndev, wdev->iftype);
 	if (err && err != -EINPROGRESS)
 		goto default_conf_out;
-	err = brcmf_dongle_probecap(cfg_priv);
+	err = brcmf_dongle_probecap(cfg);
 	if (err)
 		goto default_conf_out;
 
@@ -3740,31 +5450,31 @@ static s32 brcmf_config_dongle(struct brcmf_cfg80211_priv *cfg_priv)
 
 default_conf_out:
 
-	cfg_priv->dongle_up = true;
+	cfg->dongle_up = true;
 
 	return err;
 
 }
 
-static int brcmf_debugfs_add_netdev_params(struct brcmf_cfg80211_priv *cfg_priv)
+static int brcmf_debugfs_add_netdev_params(struct brcmf_cfg80211_info *cfg)
 {
 	char buf[10+IFNAMSIZ];
 	struct dentry *fd;
 	s32 err = 0;
 
-	sprintf(buf, "netdev:%s", cfg_to_ndev(cfg_priv)->name);
-	cfg_priv->debugfsdir = debugfs_create_dir(buf,
-					cfg_to_wiphy(cfg_priv)->debugfsdir);
+	sprintf(buf, "netdev:%s", cfg_to_ndev(cfg)->name);
+	cfg->debugfsdir = debugfs_create_dir(buf,
+					cfg_to_wiphy(cfg)->debugfsdir);
 
-	fd = debugfs_create_u16("beacon_int", S_IRUGO, cfg_priv->debugfsdir,
-		(u16 *)&cfg_priv->profile->beacon_interval);
+	fd = debugfs_create_u16("beacon_int", S_IRUGO, cfg->debugfsdir,
+		(u16 *)&cfg->profile->beacon_interval);
 	if (!fd) {
 		err = -ENOMEM;
 		goto err_out;
 	}
 
-	fd = debugfs_create_u8("dtim_period", S_IRUGO, cfg_priv->debugfsdir,
-		(u8 *)&cfg_priv->profile->dtim_period);
+	fd = debugfs_create_u8("dtim_period", S_IRUGO, cfg->debugfsdir,
+		(u8 *)&cfg->profile->dtim_period);
 	if (!fd) {
 		err = -ENOMEM;
 		goto err_out;
@@ -3774,40 +5484,40 @@ err_out:
 	return err;
 }
 
-static void brcmf_debugfs_remove_netdev(struct brcmf_cfg80211_priv *cfg_priv)
+static void brcmf_debugfs_remove_netdev(struct brcmf_cfg80211_info *cfg)
 {
-	debugfs_remove_recursive(cfg_priv->debugfsdir);
-	cfg_priv->debugfsdir = NULL;
+	debugfs_remove_recursive(cfg->debugfsdir);
+	cfg->debugfsdir = NULL;
 }
 
-static s32 __brcmf_cfg80211_up(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 __brcmf_cfg80211_up(struct brcmf_cfg80211_info *cfg)
 {
 	s32 err = 0;
 
-	set_bit(WL_STATUS_READY, &cfg_priv->status);
+	set_bit(WL_STATUS_READY, &cfg->status);
 
-	brcmf_debugfs_add_netdev_params(cfg_priv);
+	brcmf_debugfs_add_netdev_params(cfg);
 
-	err = brcmf_config_dongle(cfg_priv);
+	err = brcmf_config_dongle(cfg);
 	if (err)
 		return err;
 
-	brcmf_invoke_iscan(cfg_priv);
+	brcmf_invoke_iscan(cfg);
 
 	return err;
 }
 
-static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_priv *cfg_priv)
+static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_info *cfg)
 {
 	/*
 	 * While going down, if associated with AP disassociate
 	 * from AP to save power
 	 */
-	if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) ||
-	     test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) &&
-	     test_bit(WL_STATUS_READY, &cfg_priv->status)) {
+	if ((test_bit(WL_STATUS_CONNECTED, &cfg->status) ||
+	     test_bit(WL_STATUS_CONNECTING, &cfg->status)) &&
+	     test_bit(WL_STATUS_READY, &cfg->status)) {
 		WL_INFO("Disassociating from AP");
-		brcmf_link_down(cfg_priv);
+		brcmf_link_down(cfg);
 
 		/* Make sure WPA_Supplicant receives all the event
 		   generated due to DISASSOC call to the fw to keep
@@ -3816,63 +5526,33 @@ static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_priv *cfg_priv)
 		brcmf_delay(500);
 	}
 
-	set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
-	brcmf_term_iscan(cfg_priv);
-	if (cfg_priv->scan_request) {
-		cfg80211_scan_done(cfg_priv->scan_request, true);
-		/* May need to perform this to cover rmmod */
-		/* wl_set_mpc(cfg_to_ndev(wl), 1); */
-		cfg_priv->scan_request = NULL;
-	}
-	clear_bit(WL_STATUS_READY, &cfg_priv->status);
-	clear_bit(WL_STATUS_SCANNING, &cfg_priv->status);
-	clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
+	brcmf_abort_scanning(cfg);
+	clear_bit(WL_STATUS_READY, &cfg->status);
 
-	brcmf_debugfs_remove_netdev(cfg_priv);
+	brcmf_debugfs_remove_netdev(cfg);
 
 	return 0;
 }
 
-s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev)
+s32 brcmf_cfg80211_up(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_priv *cfg_priv;
 	s32 err = 0;
 
-	cfg_priv = brcmf_priv_get(cfg_dev);
-	mutex_lock(&cfg_priv->usr_sync);
-	err = __brcmf_cfg80211_up(cfg_priv);
-	mutex_unlock(&cfg_priv->usr_sync);
+	mutex_lock(&cfg->usr_sync);
+	err = __brcmf_cfg80211_up(cfg);
+	mutex_unlock(&cfg->usr_sync);
 
 	return err;
 }
 
-s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev)
+s32 brcmf_cfg80211_down(struct brcmf_cfg80211_info *cfg)
 {
-	struct brcmf_cfg80211_priv *cfg_priv;
 	s32 err = 0;
 
-	cfg_priv = brcmf_priv_get(cfg_dev);
-	mutex_lock(&cfg_priv->usr_sync);
-	err = __brcmf_cfg80211_down(cfg_priv);
-	mutex_unlock(&cfg_priv->usr_sync);
+	mutex_lock(&cfg->usr_sync);
+	err = __brcmf_cfg80211_down(cfg);
+	mutex_unlock(&cfg->usr_sync);
 
 	return err;
 }
 
-static __used s32 brcmf_add_ie(struct brcmf_cfg80211_priv *cfg_priv,
-			       u8 t, u8 l, u8 *v)
-{
-	struct brcmf_cfg80211_ie *ie = &cfg_priv->ie;
-	s32 err = 0;
-
-	if (ie->offset + l + 2 > WL_TLV_INFO_MAX) {
-		WL_ERR("ei crosses buffer boundary\n");
-		return -ENOSPC;
-	}
-	ie->buf[ie->offset] = t;
-	ie->buf[ie->offset + 1] = l;
-	memcpy(&ie->buf[ie->offset + 2], v, l);
-	ie->offset += l + 2;
-
-	return err;
-}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
index b5d9b36df3d..71ced174748 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
@@ -17,12 +17,6 @@
 #ifndef _wl_cfg80211_h_
 #define _wl_cfg80211_h_
 
-struct brcmf_cfg80211_conf;
-struct brcmf_cfg80211_iface;
-struct brcmf_cfg80211_priv;
-struct brcmf_cfg80211_security;
-struct brcmf_cfg80211_ibss;
-
 #define WL_DBG_NONE		0
 #define WL_DBG_CONN		(1 << 5)
 #define WL_DBG_SCAN		(1 << 4)
@@ -123,13 +117,25 @@ do {								\
 #define WL_SCAN_UNASSOC_TIME		40
 #define WL_SCAN_PASSIVE_TIME		120
 
+#define WL_ESCAN_BUF_SIZE		(1024 * 64)
+#define WL_ESCAN_TIMER_INTERVAL_MS	8000 /* E-Scan timeout */
+
+#define WL_ESCAN_ACTION_START		1
+#define WL_ESCAN_ACTION_CONTINUE	2
+#define WL_ESCAN_ACTION_ABORT		3
+
+#define WL_AUTH_SHARED_KEY		1	/* d11 shared authentication */
+#define IE_MAX_LEN			512
+
 /* dongle status */
 enum wl_status {
 	WL_STATUS_READY,
 	WL_STATUS_SCANNING,
 	WL_STATUS_SCAN_ABORTING,
 	WL_STATUS_CONNECTING,
-	WL_STATUS_CONNECTED
+	WL_STATUS_CONNECTED,
+	WL_STATUS_AP_CREATING,
+	WL_STATUS_AP_CREATED
 };
 
 /* wi-fi mode */
@@ -169,23 +175,17 @@ struct brcmf_cfg80211_conf {
 	struct ieee80211_channel channel;
 };
 
+/* forward declaration */
+struct brcmf_cfg80211_info;
+
 /* cfg80211 main event loop */
 struct brcmf_cfg80211_event_loop {
-	s32(*handler[BRCMF_E_LAST]) (struct brcmf_cfg80211_priv *cfg_priv,
+	s32(*handler[BRCMF_E_LAST]) (struct brcmf_cfg80211_info *cfg,
 				     struct net_device *ndev,
 				     const struct brcmf_event_msg *e,
 				     void *data);
 };
 
-/* representing interface of cfg80211 plane */
-struct brcmf_cfg80211_iface {
-	struct brcmf_cfg80211_priv *cfg_priv;
-};
-
-struct brcmf_cfg80211_dev {
-	void *driver_data;	/* to store cfg80211 object information */
-};
-
 /* basic structure of scan request */
 struct brcmf_cfg80211_scan_req {
 	struct brcmf_ssid_le ssid_le;
@@ -238,7 +238,7 @@ struct brcmf_cfg80211_profile {
 /* dongle iscan event loop */
 struct brcmf_cfg80211_iscan_eloop {
 	s32 (*handler[WL_SCAN_ERSULTS_LAST])
-		(struct brcmf_cfg80211_priv *cfg_priv);
+		(struct brcmf_cfg80211_info *cfg);
 };
 
 /* dongle iscan controller */
@@ -275,92 +275,240 @@ struct brcmf_cfg80211_pmk_list {
 	struct pmkid foo[MAXPMKID - 1];
 };
 
-/* dongle private data of cfg80211 interface */
-struct brcmf_cfg80211_priv {
-	struct wireless_dev *wdev;	/* representing wl cfg80211 device */
-	struct brcmf_cfg80211_conf *conf;	/* dongle configuration */
-	struct cfg80211_scan_request *scan_request;	/* scan request
-							 object */
-	struct brcmf_cfg80211_event_loop el;	/* main event loop */
-	struct list_head evt_q_list;	/* used for event queue */
-	spinlock_t	 evt_q_lock;	/* for event queue synchronization */
-	struct mutex usr_sync;	/* maily for dongle up/down synchronization */
-	struct brcmf_scan_results *bss_list;	/* bss_list holding scanned
-						 ap information */
+/* dongle escan state */
+enum wl_escan_state {
+	WL_ESCAN_STATE_IDLE,
+	WL_ESCAN_STATE_SCANNING
+};
+
+struct escan_info {
+	u32 escan_state;
+	u8 escan_buf[WL_ESCAN_BUF_SIZE];
+	struct wiphy *wiphy;
+	struct net_device *ndev;
+};
+
+/* Structure to hold WPS, WPA IEs for a AP */
+struct ap_info {
+	u8 probe_res_ie[IE_MAX_LEN];
+	u8 beacon_ie[IE_MAX_LEN];
+	u32 probe_res_ie_len;
+	u32 beacon_ie_len;
+	u8 *wpa_ie;
+	u8 *rsn_ie;
+	bool security_mode;
+};
+
+/**
+ * struct brcmf_pno_param_le - PNO scan configuration parameters
+ *
+ * @version: PNO parameters version.
+ * @scan_freq: scan frequency.
+ * @lost_network_timeout: #sec. to declare discovered network as lost.
+ * @flags: Bit field to control features of PFN such as sort criteria auto
+ *	enable switch and background scan.
+ * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
+ *	criteria.
+ * @bestn: number of best networks in each scan.
+ * @mscan: number of scans recorded.
+ * @repeat: minimum number of scan intervals before scan frequency changes
+ *	in adaptive scan.
+ * @exp: exponent of 2 for maximum scan interval.
+ * @slow_freq: slow scan period.
+ */
+struct brcmf_pno_param_le {
+	__le32 version;
+	__le32 scan_freq;
+	__le32 lost_network_timeout;
+	__le16 flags;
+	__le16 rssi_margin;
+	u8 bestn;
+	u8 mscan;
+	u8 repeat;
+	u8 exp;
+	__le32 slow_freq;
+};
+
+/**
+ * struct brcmf_pno_net_param_le - scan parameters per preferred network.
+ *
+ * @ssid: ssid name and its length.
+ * @flags: bit2: hidden.
+ * @infra: BSS vs IBSS.
+ * @auth: Open vs Closed.
+ * @wpa_auth: WPA type.
+ * @wsec: wsec value.
+ */
+struct brcmf_pno_net_param_le {
+	struct brcmf_ssid_le ssid;
+	__le32 flags;
+	__le32 infra;
+	__le32 auth;
+	__le32 wpa_auth;
+	__le32 wsec;
+};
+
+/**
+ * struct brcmf_pno_net_info_le - information per found network.
+ *
+ * @bssid: BSS network identifier.
+ * @channel: channel number only.
+ * @SSID_len: length of ssid.
+ * @SSID: ssid characters.
+ * @RSSI: receive signal strength (in dBm).
+ * @timestamp: age in seconds.
+ */
+struct brcmf_pno_net_info_le {
+	u8 bssid[ETH_ALEN];
+	u8 channel;
+	u8 SSID_len;
+	u8 SSID[32];
+	__le16	RSSI;
+	__le16	timestamp;
+};
+
+/**
+ * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
+ *
+ * @version: PNO version identifier.
+ * @status: indicates completion status of PNO scan.
+ * @count: amount of brcmf_pno_net_info_le entries appended.
+ */
+struct brcmf_pno_scanresults_le {
+	__le32 version;
+	__le32 status;
+	__le32 count;
+};
+
+/**
+ * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
+ *
+ * @wdev: representing wl cfg80211 device.
+ * @conf: dongle configuration.
+ * @scan_request: cfg80211 scan request object.
+ * @el: main event loop.
+ * @evt_q_list: used for event queue.
+ * @evt_q_lock: for event queue synchronization.
+ * @usr_sync: mainly for dongle up/down synchronization.
+ * @bss_list: bss_list holding scanned ap information.
+ * @scan_results: results of the last scan.
+ * @scan_req_int: internal scan request object.
+ * @bss_info: bss information for cfg80211 layer.
+ * @ie: information element object for internal purpose.
+ * @profile: holding dongle profile.
+ * @iscan: iscan controller information.
+ * @conn_info: association info.
+ * @pmk_list: wpa2 pmk list.
+ * @event_work: event handler work struct.
+ * @status: current dongle status.
+ * @pub: common driver information.
+ * @channel: current channel.
+ * @iscan_on: iscan on/off switch.
+ * @iscan_kickstart: indicate iscan already started.
+ * @active_scan: current scan mode.
+ * @sched_escan: e-scan for scheduled scan support running.
+ * @ibss_starter: indicates this sta is ibss starter.
+ * @link_up: link/connection up flag.
+ * @pwr_save: indicate whether dongle to support power save mode.
+ * @dongle_up: indicate whether dongle up or not.
+ * @roam_on: on/off switch for dongle self-roaming.
+ * @scan_tried: indicates if first scan attempted.
+ * @dcmd_buf: dcmd buffer.
+ * @extra_buf: mainly to grab assoc information.
+ * @debugfsdir: debugfs folder for this device.
+ * @escan_on: escan on/off switch.
+ * @escan_info: escan information.
+ * @escan_timeout: Timer for catch scan timeout.
+ * @escan_timeout_work: scan timeout worker.
+ * @escan_ioctl_buf: dongle command buffer for escan commands.
+ * @ap_info: host ap information.
+ * @ci: used to link this structure to netdev private data.
+ */
+struct brcmf_cfg80211_info {
+	struct wireless_dev *wdev;
+	struct brcmf_cfg80211_conf *conf;
+	struct cfg80211_scan_request *scan_request;
+	struct brcmf_cfg80211_event_loop el;
+	struct list_head evt_q_list;
+	spinlock_t	 evt_q_lock;
+	struct mutex usr_sync;
+	struct brcmf_scan_results *bss_list;
 	struct brcmf_scan_results *scan_results;
-	struct brcmf_cfg80211_scan_req *scan_req_int;	/* scan request object
-						 for internal purpose */
-	struct wl_cfg80211_bss_info *bss_info;	/* bss information for
-						 cfg80211 layer */
-	struct brcmf_cfg80211_ie ie;	/* information element object for
-					 internal purpose */
-	struct brcmf_cfg80211_profile *profile;	/* holding dongle profile */
-	struct brcmf_cfg80211_iscan_ctrl *iscan;	/* iscan controller */
-	struct brcmf_cfg80211_connect_info conn_info; /* association info */
-	struct brcmf_cfg80211_pmk_list *pmk_list;	/* wpa2 pmk list */
-	struct work_struct event_work;	/* event handler work struct */
-	unsigned long status;		/* current dongle status */
-	void *pub;
-	u32 channel;		/* current channel */
-	bool iscan_on;		/* iscan on/off switch */
-	bool iscan_kickstart;	/* indicate iscan already started */
-	bool active_scan;	/* current scan mode */
-	bool ibss_starter;	/* indicates this sta is ibss starter */
-	bool link_up;		/* link/connection up flag */
-	bool pwr_save;		/* indicate whether dongle to support
-					 power save mode */
-	bool dongle_up;		/* indicate whether dongle up or not */
-	bool roam_on;		/* on/off switch for dongle self-roaming */
-	bool scan_tried;	/* indicates if first scan attempted */
-	u8 *dcmd_buf;		/* dcmd buffer */
-	u8 *extra_buf;		/* maily to grab assoc information */
+	struct brcmf_cfg80211_scan_req *scan_req_int;
+	struct wl_cfg80211_bss_info *bss_info;
+	struct brcmf_cfg80211_ie ie;
+	struct brcmf_cfg80211_profile *profile;
+	struct brcmf_cfg80211_iscan_ctrl *iscan;
+	struct brcmf_cfg80211_connect_info conn_info;
+	struct brcmf_cfg80211_pmk_list *pmk_list;
+	struct work_struct event_work;
+	unsigned long status;
+	struct brcmf_pub *pub;
+	u32 channel;
+	bool iscan_on;
+	bool iscan_kickstart;
+	bool active_scan;
+	bool sched_escan;
+	bool ibss_starter;
+	bool link_up;
+	bool pwr_save;
+	bool dongle_up;
+	bool roam_on;
+	bool scan_tried;
+	u8 *dcmd_buf;
+	u8 *extra_buf;
 	struct dentry *debugfsdir;
-	u8 ci[0] __aligned(NETDEV_ALIGN);
+	bool escan_on;
+	struct escan_info escan_info;
+	struct timer_list escan_timeout;
+	struct work_struct escan_timeout_work;
+	u8 *escan_ioctl_buf;
+	struct ap_info *ap_info;
 };
 
-static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_priv *w)
+static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *w)
 {
 	return w->wdev->wiphy;
 }
 
-static inline struct brcmf_cfg80211_priv *wiphy_to_cfg(struct wiphy *w)
+static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
 {
-	return (struct brcmf_cfg80211_priv *)(wiphy_priv(w));
+	return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
 }
 
-static inline struct brcmf_cfg80211_priv *wdev_to_cfg(struct wireless_dev *wd)
+static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
 {
-	return (struct brcmf_cfg80211_priv *)(wdev_priv(wd));
+	return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
 }
 
-static inline struct net_device *cfg_to_ndev(struct brcmf_cfg80211_priv *cfg)
+static inline struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
 {
 	return cfg->wdev->netdev;
 }
 
-static inline struct brcmf_cfg80211_priv *ndev_to_cfg(struct net_device *ndev)
+static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
 {
 	return wdev_to_cfg(ndev->ieee80211_ptr);
 }
 
-#define iscan_to_cfg(i) ((struct brcmf_cfg80211_priv *)(i->data))
+#define iscan_to_cfg(i) ((struct brcmf_cfg80211_info *)(i->data))
 #define cfg_to_iscan(w) (w->iscan)
 
 static inline struct
-brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_priv *cfg)
+brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
 {
 	return &cfg->conn_info;
 }
 
-extern struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev,
-							struct device *busdev,
-							void *data);
-extern void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg);
+struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct net_device *ndev,
+						  struct device *busdev,
+						  struct brcmf_pub *drvr);
+void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
 
 /* event handler from dongle */
-extern void brcmf_cfg80211_event(struct net_device *ndev,
-				 const struct brcmf_event_msg *e, void *data);
-extern s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev);
-extern s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev);
+void brcmf_cfg80211_event(struct net_device *ndev,
+			  const struct brcmf_event_msg *e, void *data);
+s32 brcmf_cfg80211_up(struct brcmf_cfg80211_info *cfg);
+s32 brcmf_cfg80211_down(struct brcmf_cfg80211_info *cfg);
 
 #endif				/* _wl_cfg80211_h_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
index 8c9345dd37d..b89f1272b93 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
@@ -535,9 +535,6 @@ void ai_detach(struct si_pub *sih)
 {
 	struct si_info *sii;
 
-	struct si_pub *si_local = NULL;
-	memcpy(&si_local, &sih, sizeof(struct si_pub **));
-
 	sii = container_of(sih, struct si_info, pub);
 
 	if (sii == NULL)
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/channel.c b/drivers/net/wireless/brcm80211/brcmsmac/channel.c
index 9a4c63f927c..64a48f06d68 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/channel.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/channel.c
@@ -77,7 +77,7 @@
 					 NL80211_RRF_NO_IBSS)
 
 static const struct ieee80211_regdomain brcms_regdom_x2 = {
-	.n_reg_rules = 7,
+	.n_reg_rules = 6,
 	.alpha2 = "X2",
 	.reg_rules = {
 		BRCM_2GHZ_2412_2462,
@@ -382,9 +382,7 @@ brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm, u16 chanspec,
 {
 	struct brcms_c_info *wlc = wlc_cm->wlc;
 	struct ieee80211_channel *ch = wlc->pub->ieee_hw->conf.channel;
-	const struct ieee80211_reg_rule *reg_rule;
 	struct txpwr_limits txpwr;
-	int ret;
 
 	brcms_c_channel_reg_limits(wlc_cm, chanspec, &txpwr);
 
@@ -393,8 +391,7 @@ brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm, u16 chanspec,
 	);
 
 	/* set or restore gmode as required by regulatory */
-	ret = freq_reg_info(wlc->wiphy, ch->center_freq, 0, &reg_rule);
-	if (!ret && (reg_rule->flags & NL80211_RRF_NO_OFDM))
+	if (ch->flags & IEEE80211_CHAN_NO_OFDM)
 		brcms_c_set_gmode(wlc, GMODE_LEGACY_B, false);
 	else
 		brcms_c_set_gmode(wlc, wlc->protection->gmode_user, false);
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
index 9e79d47e077..a744ea5a955 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
@@ -86,7 +86,9 @@ MODULE_AUTHOR("Broadcom Corporation");
 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
 MODULE_LICENSE("Dual BSD/GPL");
-
+/* This needs to be adjusted when brcms_firmwares changes */
+MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
+MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
 
 /* recognized BCMA Core IDs */
 static struct bcma_device_id brcms_coreid_table[] = {
@@ -121,7 +123,8 @@ static struct ieee80211_channel brcms_2ghz_chantable[] = {
 		 IEEE80211_CHAN_NO_HT40PLUS),
 	CHAN2GHZ(14, 2484,
 		 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
-		 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
+		 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
+		 IEEE80211_CHAN_NO_OFDM)
 };
 
 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
@@ -264,7 +267,9 @@ static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
 	}
 }
 
-static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void brcms_ops_tx(struct ieee80211_hw *hw,
+			 struct ieee80211_tx_control *control,
+			 struct sk_buff *skb)
 {
 	struct brcms_info *wl = hw->priv;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@@ -276,7 +281,7 @@ static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 		goto done;
 	}
 	brcms_c_sendpkt_mac80211(wl->wlc, skb, hw);
-	tx_info->rate_driver_data[0] = tx_info->control.sta;
+	tx_info->rate_driver_data[0] = control->sta;
  done:
 	spin_unlock_bh(&wl->lock);
 }
@@ -299,7 +304,10 @@ static int brcms_ops_start(struct ieee80211_hw *hw)
 	wl->mute_tx = true;
 
 	if (!wl->pub->up)
-		err = brcms_up(wl);
+		if (!blocked)
+			err = brcms_up(wl);
+		else
+			err = -ERFKILL;
 	else
 		err = -ENODEV;
 	spin_unlock_bh(&wl->lock);
@@ -1232,6 +1240,9 @@ uint brcms_reset(struct brcms_info *wl)
 	/* dpc will not be rescheduled */
 	wl->resched = false;
 
+	/* inform publicly that interface is down */
+	wl->pub->up = false;
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index 03ca6532484..75086b37c81 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -7512,15 +7512,10 @@ prep_mac80211_status(struct brcms_c_info *wlc, struct d11rxhdr *rxh,
 
 	channel = BRCMS_CHAN_CHANNEL(rxh->RxChan);
 
-	if (channel > 14) {
-		rx_status->band = IEEE80211_BAND_5GHZ;
-		rx_status->freq = ieee80211_ofdm_chan_to_freq(
-					WF_CHAN_FACTOR_5_G/2, channel);
-
-	} else {
-		rx_status->band = IEEE80211_BAND_2GHZ;
-		rx_status->freq = ieee80211_dsss_chan_to_freq(channel);
-	}
+	rx_status->band =
+		channel > 14 ? IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
+	rx_status->freq =
+		ieee80211_channel_to_frequency(channel, rx_status->band);
 
 	rx_status->signal = wlc_phy_rssi_compute(wlc->hw->band->pi, rxh);
 
diff --git a/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h b/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h
index bcc79b4e326..e8682855b73 100644
--- a/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h
+++ b/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h
@@ -34,6 +34,7 @@
 #define BCM43235_CHIP_ID	43235
 #define BCM43236_CHIP_ID	43236
 #define BCM43238_CHIP_ID	43238
+#define BCM43241_CHIP_ID	0x4324
 #define BCM4329_CHIP_ID		0x4329
 #define BCM4330_CHIP_ID		0x4330
 #define BCM4331_CHIP_ID		0x4331
diff --git a/drivers/net/wireless/brcm80211/include/brcmu_wifi.h b/drivers/net/wireless/brcm80211/include/brcmu_wifi.h
index f10d30274c2..c11a290a1ed 100644
--- a/drivers/net/wireless/brcm80211/include/brcmu_wifi.h
+++ b/drivers/net/wireless/brcm80211/include/brcmu_wifi.h
@@ -67,11 +67,6 @@
 #define WL_CHANSPEC_BAND_2G		0x2000
 #define INVCHANSPEC			255
 
-/* used to calculate the chan_freq = chan_factor * 500Mhz + 5 * chan_number */
-#define WF_CHAN_FACTOR_2_4_G		4814	/* 2.4 GHz band, 2407 MHz */
-#define WF_CHAN_FACTOR_5_G		10000	/* 5   GHz band, 5000 MHz */
-#define WF_CHAN_FACTOR_4_G		8000	/* 4.9 GHz band for Japan */
-
 #define CHSPEC_CHANNEL(chspec)	((u8)((chspec) & WL_CHANSPEC_CHAN_MASK))
 #define CHSPEC_BAND(chspec)	((chspec) & WL_CHANSPEC_BAND_MASK)
 
diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index e1f41027724..c6ea995750d 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -860,10 +860,10 @@ void hostap_free_data(struct ap_data *ap)
 		return;
 	}
 
-	flush_work_sync(&ap->add_sta_proc_queue);
+	flush_work(&ap->add_sta_proc_queue);
 
 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
-	flush_work_sync(&ap->wds_oper_queue);
+	flush_work(&ap->wds_oper_queue);
 	if (ap->crypt)
 		ap->crypt->deinit(ap->crypt_priv);
 	ap->crypt = ap->crypt_priv = NULL;
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index 50f87b60b0b..8e7000fd441 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -3311,13 +3311,13 @@ static void prism2_free_local_data(struct net_device *dev)
 
 	unregister_netdev(local->dev);
 
-	flush_work_sync(&local->reset_queue);
-	flush_work_sync(&local->set_multicast_list_queue);
-	flush_work_sync(&local->set_tim_queue);
+	flush_work(&local->reset_queue);
+	flush_work(&local->set_multicast_list_queue);
+	flush_work(&local->set_tim_queue);
 #ifndef PRISM2_NO_STATION_MODES
-	flush_work_sync(&local->info_queue);
+	flush_work(&local->info_queue);
 #endif
-	flush_work_sync(&local->comms_qual_update);
+	flush_work(&local->comms_qual_update);
 
 	lib80211_crypt_info_free(&local->crypt_info);
 
diff --git a/drivers/net/wireless/hostap/hostap_info.c b/drivers/net/wireless/hostap/hostap_info.c
index 47932b28aac..970a48baaf8 100644
--- a/drivers/net/wireless/hostap/hostap_info.c
+++ b/drivers/net/wireless/hostap/hostap_info.c
@@ -4,6 +4,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/export.h>
+#include <linux/etherdevice.h>
 #include "hostap_wlan.h"
 #include "hostap.h"
 #include "hostap_ap.h"
@@ -463,8 +464,7 @@ static void handle_info_queue_scanresults(local_info_t *local)
 		prism2_host_roaming(local);
 
 	if (local->host_roaming == 2 && local->iw_mode == IW_MODE_INFRA &&
-	    memcmp(local->preferred_ap, "\x00\x00\x00\x00\x00\x00",
-		   ETH_ALEN) != 0) {
+	    !is_zero_ether_addr(local->preferred_ap)) {
 		/*
 		 * Firmware seems to be getting into odd state in host_roaming
 		 * mode 2 when hostscan is used without join command, so try
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 18054d9c668..ac074731335 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -6,6 +6,7 @@
 #include <linux/ethtool.h>
 #include <linux/if_arp.h>
 #include <linux/module.h>
+#include <linux/etherdevice.h>
 #include <net/lib80211.h>
 
 #include "hostap_wlan.h"
@@ -3221,8 +3222,7 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev,
 		return -EINVAL;
 
 	addr = ext->addr.sa_data;
-	if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
-	    addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(addr)) {
 		sta_ptr = NULL;
 		crypt = &local->crypt_info.crypt[i];
 	} else {
@@ -3394,8 +3394,7 @@ static int prism2_ioctl_giwencodeext(struct net_device *dev,
 		i--;
 
 	addr = ext->addr.sa_data;
-	if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
-	    addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(addr)) {
 		sta_ptr = NULL;
 		crypt = &local->crypt_info.crypt[i];
 	} else {
@@ -3458,9 +3457,7 @@ static int prism2_ioctl_set_encryption(local_info_t *local,
 	    param->u.crypt.key_len)
 		return -EINVAL;
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= WEP_KEYS)
 			return -EINVAL;
 		sta_ptr = NULL;
@@ -3593,9 +3590,7 @@ static int prism2_ioctl_get_encryption(local_info_t *local,
 	if (max_key_len < 0)
 		return -EINVAL;
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		sta_ptr = NULL;
 		if (param->u.crypt.idx >= WEP_KEYS)
 			param->u.crypt.idx = local->crypt_info.tx_keyidx;
diff --git a/drivers/net/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c
index 627bc12074c..15f0fad39ad 100644
--- a/drivers/net/wireless/hostap/hostap_main.c
+++ b/drivers/net/wireless/hostap/hostap_main.c
@@ -1084,7 +1084,7 @@ int prism2_sta_deauth(local_info_t *local, u16 reason)
 	__le16 val = cpu_to_le16(reason);
 
 	if (local->iw_mode != IW_MODE_INFRA ||
-	    memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 ||
+	    is_zero_ether_addr(local->bssid) ||
 	    memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0)
 		return 0;
 
diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 95aa8e1683e..29b8fa1adef 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -2042,7 +2042,8 @@ static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
 		return;
 	}
 	len = ETH_ALEN;
-	ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
+	ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
+				  &len);
 	if (ret) {
 		IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
 			       __LINE__);
@@ -2180,8 +2181,7 @@ static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
 
 	/* Make sure the RF Kill check timer is running */
 	priv->stop_rf_kill = 0;
-	cancel_delayed_work(&priv->rf_kill);
-	schedule_delayed_work(&priv->rf_kill, round_jiffies_relative(HZ));
+	mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
 }
 
 static void send_scan_event(void *data)
@@ -4321,9 +4321,8 @@ static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
 					  "disabled by HW switch\n");
 			/* Make sure the RF_KILL check timer is running */
 			priv->stop_rf_kill = 0;
-			cancel_delayed_work(&priv->rf_kill);
-			schedule_delayed_work(&priv->rf_kill,
-					      round_jiffies_relative(HZ));
+			mod_delayed_work(system_wq, &priv->rf_kill,
+					 round_jiffies_relative(HZ));
 		} else
 			schedule_reset(priv);
 	}
@@ -6963,13 +6962,6 @@ static int ipw2100_wx_set_wap(struct net_device *dev,
 	struct ipw2100_priv *priv = libipw_priv(dev);
 	int err = 0;
 
-	static const unsigned char any[] = {
-		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-	};
-	static const unsigned char off[] = {
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	};
-
 	// sanity checks
 	if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 		return -EINVAL;
@@ -6980,8 +6972,8 @@ static int ipw2100_wx_set_wap(struct net_device *dev,
 		goto done;
 	}
 
-	if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
-	    !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
+	if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
+	    is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
 		/* we disable mandatory BSSID association */
 		IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
 		priv->config &= ~CFG_STATIC_BSSID;
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 0df45914739..935120fc8c9 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -9037,18 +9037,11 @@ static int ipw_wx_set_wap(struct net_device *dev,
 {
 	struct ipw_priv *priv = libipw_priv(dev);
 
-	static const unsigned char any[] = {
-		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-	};
-	static const unsigned char off[] = {
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-	};
-
 	if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 		return -EINVAL;
 	mutex_lock(&priv->mutex);
-	if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
-	    !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
+	if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
+	    is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
 		/* we disable mandatory BSSID association */
 		IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
 		priv->config &= ~CFG_STATIC_BSSID;
diff --git a/drivers/net/wireless/ipw2x00/libipw_wx.c b/drivers/net/wireless/ipw2x00/libipw_wx.c
index 1571505b1a3..54aba474443 100644
--- a/drivers/net/wireless/ipw2x00/libipw_wx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_wx.c
@@ -675,7 +675,7 @@ int libipw_wx_set_encodeext(struct libipw_device *ieee,
 	}
       done:
 	if (ieee->set_security)
-		ieee->set_security(ieee->dev, &sec);
+		ieee->set_security(dev, &sec);
 
 	return ret;
 }
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index faec4046720..e252acb9c86 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -460,7 +460,9 @@ il3945_build_tx_cmd_basic(struct il_priv *il, struct il_device_cmd *cmd,
  * start C_TX command process
  */
 static int
-il3945_tx_skb(struct il_priv *il, struct sk_buff *skb)
+il3945_tx_skb(struct il_priv *il,
+	      struct ieee80211_sta *sta,
+	      struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -512,7 +514,7 @@ il3945_tx_skb(struct il_priv *il, struct sk_buff *skb)
 	hdr_len = ieee80211_hdrlen(fc);
 
 	/* Find idx into station table for destination station */
-	sta_id = il_sta_id_or_broadcast(il, info->control.sta);
+	sta_id = il_sta_id_or_broadcast(il, sta);
 	if (sta_id == IL_INVALID_STATION) {
 		D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1);
 		goto drop;
@@ -2859,7 +2861,9 @@ il3945_mac_stop(struct ieee80211_hw *hw)
 }
 
 static void
-il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+il3945_mac_tx(struct ieee80211_hw *hw,
+	       struct ieee80211_tx_control *control,
+	       struct sk_buff *skb)
 {
 	struct il_priv *il = hw->priv;
 
@@ -2868,7 +2872,7 @@ il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
 	     ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
 
-	if (il3945_tx_skb(il, skb))
+	if (il3945_tx_skb(il, control->sta, skb))
 		dev_kfree_skb_any(skb);
 
 	D_MAC80211("leave\n");
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 34f61a0581a..eac4dc8bc87 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -1526,8 +1526,11 @@ il4965_tx_cmd_build_basic(struct il_priv *il, struct sk_buff *skb,
 }
 
 static void
-il4965_tx_cmd_build_rate(struct il_priv *il, struct il_tx_cmd *tx_cmd,
-			 struct ieee80211_tx_info *info, __le16 fc)
+il4965_tx_cmd_build_rate(struct il_priv *il,
+			 struct il_tx_cmd *tx_cmd,
+			 struct ieee80211_tx_info *info,
+			 struct ieee80211_sta *sta,
+			 __le16 fc)
 {
 	const u8 rts_retry_limit = 60;
 	u32 rate_flags;
@@ -1561,9 +1564,7 @@ il4965_tx_cmd_build_rate(struct il_priv *il, struct il_tx_cmd *tx_cmd,
 	rate_idx = info->control.rates[0].idx;
 	if ((info->control.rates[0].flags & IEEE80211_TX_RC_MCS) || rate_idx < 0
 	    || rate_idx > RATE_COUNT_LEGACY)
-		rate_idx =
-		    rate_lowest_index(&il->bands[info->band],
-				      info->control.sta);
+		rate_idx = rate_lowest_index(&il->bands[info->band], sta);
 	/* For 5 GHZ band, remap mac80211 rate indices into driver indices */
 	if (info->band == IEEE80211_BAND_5GHZ)
 		rate_idx += IL_FIRST_OFDM_RATE;
@@ -1630,11 +1631,12 @@ il4965_tx_cmd_build_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info,
  * start C_TX command process
  */
 int
-il4965_tx_skb(struct il_priv *il, struct sk_buff *skb)
+il4965_tx_skb(struct il_priv *il,
+	      struct ieee80211_sta *sta,
+	      struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_sta *sta = info->control.sta;
 	struct il_station_priv *sta_priv = NULL;
 	struct il_tx_queue *txq;
 	struct il_queue *q;
@@ -1680,7 +1682,7 @@ il4965_tx_skb(struct il_priv *il, struct sk_buff *skb)
 		sta_id = il->hw_params.bcast_id;
 	else {
 		/* Find idx into station table for destination station */
-		sta_id = il_sta_id_or_broadcast(il, info->control.sta);
+		sta_id = il_sta_id_or_broadcast(il, sta);
 
 		if (sta_id == IL_INVALID_STATION) {
 			D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1);
@@ -1786,7 +1788,7 @@ il4965_tx_skb(struct il_priv *il, struct sk_buff *skb)
 	/* TODO need this for burst mode later on */
 	il4965_tx_cmd_build_basic(il, skb, tx_cmd, info, hdr, sta_id);
 
-	il4965_tx_cmd_build_rate(il, tx_cmd, info, fc);
+	il4965_tx_cmd_build_rate(il, tx_cmd, info, sta, fc);
 
 	il_update_stats(il, true, fc, len);
 	/*
@@ -5828,7 +5830,9 @@ il4965_mac_stop(struct ieee80211_hw *hw)
 }
 
 void
-il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+il4965_mac_tx(struct ieee80211_hw *hw,
+	      struct ieee80211_tx_control *control,
+	      struct sk_buff *skb)
 {
 	struct il_priv *il = hw->priv;
 
@@ -5837,7 +5841,7 @@ il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
 	     ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
 
-	if (il4965_tx_skb(il, skb))
+	if (il4965_tx_skb(il, control->sta, skb))
 		dev_kfree_skb_any(skb);
 
 	D_MACDUMP("leave\n");
diff --git a/drivers/net/wireless/iwlegacy/4965.h b/drivers/net/wireless/iwlegacy/4965.h
index 1db677689cf..2d092f32854 100644
--- a/drivers/net/wireless/iwlegacy/4965.h
+++ b/drivers/net/wireless/iwlegacy/4965.h
@@ -78,7 +78,9 @@ int il4965_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq,
 int il4965_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
 void il4965_hwrate_to_tx_control(struct il_priv *il, u32 rate_n_flags,
 				 struct ieee80211_tx_info *info);
-int il4965_tx_skb(struct il_priv *il, struct sk_buff *skb);
+int il4965_tx_skb(struct il_priv *il,
+		  struct ieee80211_sta *sta,
+		  struct sk_buff *skb);
 int il4965_tx_agg_start(struct il_priv *il, struct ieee80211_vif *vif,
 			struct ieee80211_sta *sta, u16 tid, u16 * ssn);
 int il4965_tx_agg_stop(struct il_priv *il, struct ieee80211_vif *vif,
@@ -163,7 +165,9 @@ void il4965_eeprom_release_semaphore(struct il_priv *il);
 int il4965_eeprom_check_version(struct il_priv *il);
 
 /* mac80211 handlers (for 4965) */
-void il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
+void il4965_mac_tx(struct ieee80211_hw *hw,
+		   struct ieee80211_tx_control *control,
+		   struct sk_buff *skb);
 int il4965_mac_start(struct ieee80211_hw *hw);
 void il4965_mac_stop(struct ieee80211_hw *hw);
 void il4965_configure_filter(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index 0370403fd0b..318ed3c9fe7 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -1586,9 +1586,9 @@ il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame,
 		return 0;
 
 	frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
-	memcpy(frame->da, il_bcast_addr, ETH_ALEN);
+	eth_broadcast_addr(frame->da);
 	memcpy(frame->sa, ta, ETH_ALEN);
-	memcpy(frame->bssid, il_bcast_addr, ETH_ALEN);
+	eth_broadcast_addr(frame->bssid);
 	frame->seq_ctrl = 0;
 
 	len += 24;
@@ -4860,7 +4860,7 @@ EXPORT_SYMBOL(il_add_beacon_time);
 
 #ifdef CONFIG_PM
 
-int
+static int
 il_pci_suspend(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
@@ -4877,9 +4877,8 @@ il_pci_suspend(struct device *device)
 
 	return 0;
 }
-EXPORT_SYMBOL(il_pci_suspend);
 
-int
+static int
 il_pci_resume(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
@@ -4906,16 +4905,8 @@ il_pci_resume(struct device *device)
 
 	return 0;
 }
-EXPORT_SYMBOL(il_pci_resume);
 
-const struct dev_pm_ops il_pm_ops = {
-	.suspend = il_pci_suspend,
-	.resume = il_pci_resume,
-	.freeze = il_pci_suspend,
-	.thaw = il_pci_resume,
-	.poweroff = il_pci_suspend,
-	.restore = il_pci_resume,
-};
+SIMPLE_DEV_PM_OPS(il_pm_ops, il_pci_suspend, il_pci_resume);
 EXPORT_SYMBOL(il_pm_ops);
 
 #endif /* CONFIG_PM */
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index 5f5017767b9..b4bb813362b 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -1832,10 +1832,8 @@ int il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd);
 static inline u16
 il_pcie_link_ctl(struct il_priv *il)
 {
-	int pos;
 	u16 pci_lnk_ctl;
-	pos = pci_pcie_cap(il->pci_dev);
-	pci_read_config_word(il->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
+	pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &pci_lnk_ctl);
 	return pci_lnk_ctl;
 }
 
@@ -1845,8 +1843,6 @@ __le32 il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,
 			  u32 beacon_interval);
 
 #ifdef CONFIG_PM
-int il_pci_suspend(struct device *device);
-int il_pci_resume(struct device *device);
 extern const struct dev_pm_ops il_pm_ops;
 
 #define IL_LEGACY_PM_OPS	(&il_pm_ops)
diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h
index 9bb16bdf6d2..75e12f29d9e 100644
--- a/drivers/net/wireless/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/iwlwifi/dvm/agn.h
@@ -201,7 +201,9 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 
 
 /* tx */
-int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
+int iwlagn_tx_skb(struct iwl_priv *priv,
+		  struct ieee80211_sta *sta,
+		  struct sk_buff *skb);
 int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 			struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 int iwlagn_tx_agg_oper(struct iwl_priv *priv, struct ieee80211_vif *vif,
@@ -485,16 +487,13 @@ static inline void iwl_dvm_set_pmi(struct iwl_priv *priv, bool state)
 }
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-int iwl_dbgfs_register(struct iwl_priv *priv, const char *name);
-void iwl_dbgfs_unregister(struct iwl_priv *priv);
+int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir);
 #else
-static inline int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
+static inline int iwl_dbgfs_register(struct iwl_priv *priv,
+				     struct dentry *dbgfs_dir)
 {
 	return 0;
 }
-static inline void iwl_dbgfs_unregister(struct iwl_priv *priv)
-{
-}
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 
 #ifdef CONFIG_IWLWIFI_DEBUG
diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h
index 4a361c55c54..01128c96b5d 100644
--- a/drivers/net/wireless/iwlwifi/dvm/commands.h
+++ b/drivers/net/wireless/iwlwifi/dvm/commands.h
@@ -1055,8 +1055,9 @@ struct iwl_wep_cmd {
 #define RX_RES_PHY_FLAGS_MOD_CCK_MSK		cpu_to_le16(1 << 1)
 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK	cpu_to_le16(1 << 2)
 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK	cpu_to_le16(1 << 3)
-#define RX_RES_PHY_FLAGS_ANTENNA_MSK		0xf0
+#define RX_RES_PHY_FLAGS_ANTENNA_MSK		0x70
 #define RX_RES_PHY_FLAGS_ANTENNA_POS		4
+#define RX_RES_PHY_FLAGS_AGG_MSK		cpu_to_le16(1 << 7)
 
 #define RX_RES_STATUS_SEC_TYPE_MSK	(0x7 << 8)
 #define RX_RES_STATUS_SEC_TYPE_NONE	(0x0 << 8)
diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
index 46782f1102a..1a98fa3ab06 100644
--- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
@@ -124,6 +124,9 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
 	const struct fw_img *img;
 	size_t bufsz;
 
+	if (!iwl_is_ready_rf(priv))
+		return -EAGAIN;
+
 	/* default is to dump the entire data segment */
 	if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 		priv->dbgfs_sram_offset = 0x800000;
@@ -2349,24 +2352,19 @@ DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
  * Create the debugfs files and directories
  *
  */
-int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
+int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
 {
-	struct dentry *phyd = priv->hw->wiphy->debugfsdir;
-	struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
-
-	dir_drv = debugfs_create_dir(name, phyd);
-	if (!dir_drv)
-		return -ENOMEM;
+	struct dentry *dir_data, *dir_rf, *dir_debug;
 
-	priv->debugfs_dir = dir_drv;
+	priv->debugfs_dir = dbgfs_dir;
 
-	dir_data = debugfs_create_dir("data", dir_drv);
+	dir_data = debugfs_create_dir("data", dbgfs_dir);
 	if (!dir_data)
 		goto err;
-	dir_rf = debugfs_create_dir("rf", dir_drv);
+	dir_rf = debugfs_create_dir("rf", dbgfs_dir);
 	if (!dir_rf)
 		goto err;
-	dir_debug = debugfs_create_dir("debug", dir_drv);
+	dir_debug = debugfs_create_dir("debug", dbgfs_dir);
 	if (!dir_debug)
 		goto err;
 
@@ -2412,25 +2410,30 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	/* Calibrations disabled/enabled status*/
 	DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
 
-	if (iwl_trans_dbgfs_register(priv->trans, dir_debug))
-		goto err;
+	/*
+	 * Create a symlink with mac80211. This is not very robust, as it does
+	 * not remove the symlink created. The implicit assumption is that
+	 * when the opmode exits, mac80211 will also exit, and will remove
+	 * this symlink as part of its cleanup.
+	 */
+	if (priv->mac80211_registered) {
+		char buf[100];
+		struct dentry *mac80211_dir, *dev_dir, *root_dir;
+
+		dev_dir = dbgfs_dir->d_parent;
+		root_dir = dev_dir->d_parent;
+		mac80211_dir = priv->hw->wiphy->debugfsdir;
+
+		snprintf(buf, 100, "../../%s/%s", root_dir->d_name.name,
+			 dev_dir->d_name.name);
+
+		if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
+			goto err;
+	}
+
 	return 0;
 
 err:
-	IWL_ERR(priv, "Can't create the debugfs directory\n");
-	iwl_dbgfs_unregister(priv);
+	IWL_ERR(priv, "failed to create the dvm debugfs entries\n");
 	return -ENOMEM;
 }
-
-/**
- * Remove the debugfs files and directories
- *
- */
-void iwl_dbgfs_unregister(struct iwl_priv *priv)
-{
-	if (!priv->debugfs_dir)
-		return;
-
-	debugfs_remove_recursive(priv->debugfs_dir);
-	priv->debugfs_dir = NULL;
-}
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index 054f728f626..8141f91c372 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -771,6 +771,7 @@ struct iwl_priv {
 	u8 agg_tids_count;
 
 	struct iwl_rx_phy_res last_phy_res;
+	u32 ampdu_ref;
 	bool last_phy_res_valid;
 
 	/*
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index a5f7bce9632..ff8162d4c45 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -195,7 +195,7 @@ int iwlagn_mac_setup_register(struct iwl_priv *priv,
 			ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
 	}
 
-	hw->wiphy->max_remain_on_channel_duration = 1000;
+	hw->wiphy->max_remain_on_channel_duration = 500;
 
 	hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
 			    WIPHY_FLAG_DISABLE_BEACON_HINTS |
@@ -511,14 +511,16 @@ static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 }
 #endif
 
-static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void iwlagn_mac_tx(struct ieee80211_hw *hw,
+			  struct ieee80211_tx_control *control,
+			  struct sk_buff *skb)
 {
 	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 
 	IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
 		     ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
 
-	if (iwlagn_tx_skb(priv, skb))
+	if (iwlagn_tx_skb(priv, control->sta, skb))
 		dev_kfree_skb_any(skb);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 84d3db5aa50..7ff3f143067 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -862,7 +862,8 @@ void iwl_down(struct iwl_priv *priv)
 	 * No race since we hold the mutex here and a new one
 	 * can't come in at this time.
 	 */
-	ieee80211_remain_on_channel_expired(priv->hw);
+	if (priv->ucode_loaded && priv->cur_ucode != IWL_UCODE_INIT)
+		ieee80211_remain_on_channel_expired(priv->hw);
 
 	exit_pending =
 		test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
@@ -994,7 +995,11 @@ static void iwl_bg_restart(struct work_struct *data)
 		iwlagn_prepare_restart(priv);
 		mutex_unlock(&priv->mutex);
 		iwl_cancel_deferred_work(priv);
-		ieee80211_restart_hw(priv->hw);
+		if (priv->mac80211_registered)
+			ieee80211_restart_hw(priv->hw);
+		else
+			IWL_ERR(priv,
+				"Cannot request restart before registrating with mac80211");
 	} else {
 		WARN_ON(1);
 	}
@@ -1222,7 +1227,8 @@ static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
 
 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 						 const struct iwl_cfg *cfg,
-						 const struct iwl_fw *fw)
+						 const struct iwl_fw *fw,
+						 struct dentry *dbgfs_dir)
 {
 	struct iwl_priv *priv;
 	struct ieee80211_hw *hw;
@@ -1466,13 +1472,17 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 	if (iwlagn_mac_setup_register(priv, &fw->ucode_capa))
 		goto out_destroy_workqueue;
 
-	if (iwl_dbgfs_register(priv, DRV_NAME))
-		IWL_ERR(priv,
-			"failed to create debugfs files. Ignoring error\n");
+	if (iwl_dbgfs_register(priv, dbgfs_dir))
+		goto out_mac80211_unregister;
 
 	return op_mode;
 
+out_mac80211_unregister:
+	iwlagn_mac_unregister(priv);
 out_destroy_workqueue:
+	iwl_tt_exit(priv);
+	iwl_testmode_free(priv);
+	iwl_cancel_deferred_work(priv);
 	destroy_workqueue(priv->workqueue);
 	priv->workqueue = NULL;
 	iwl_uninit_drv(priv);
@@ -1493,8 +1503,6 @@ static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
 
 	IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
 
-	iwl_dbgfs_unregister(priv);
-
 	iwl_testmode_free(priv);
 	iwlagn_mac_unregister(priv);
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.c b/drivers/net/wireless/iwlwifi/dvm/rs.c
index 6fddd2785e6..a82f46c10f5 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rs.c
@@ -707,11 +707,14 @@ static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
  */
 static bool rs_use_green(struct ieee80211_sta *sta)
 {
-	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
-	struct iwl_rxon_context *ctx = sta_priv->ctx;
-
-	return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
-		!(ctx->ht.non_gf_sta_present);
+	/*
+	 * There's a bug somewhere in this code that causes the
+	 * scaling to get stuck because GF+SGI can't be combined
+	 * in SISO rates. Until we find that bug, disable GF, it
+	 * has only limited benefit and we still interoperate with
+	 * GF APs since we can always receive GF transmissions.
+	 */
+	return false;
 }
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c
index fee5cffa166..5a9c325804f 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rx.c
@@ -667,6 +667,7 @@ static int iwlagn_rx_reply_rx_phy(struct iwl_priv *priv,
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 
 	priv->last_phy_res_valid = true;
+	priv->ampdu_ref++;
 	memcpy(&priv->last_phy_res, pkt->data,
 	       sizeof(struct iwl_rx_phy_res));
 	return 0;
@@ -981,6 +982,16 @@ static int iwlagn_rx_reply_rx(struct iwl_priv *priv,
 	if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
 		rx_status.flag |= RX_FLAG_SHORTPRE;
 
+	if (phy_res->phy_flags & RX_RES_PHY_FLAGS_AGG_MSK) {
+		/*
+		 * We know which subframes of an A-MPDU belong
+		 * together since we get a single PHY response
+		 * from the firmware for all of them
+		 */
+		rx_status.flag |= RX_FLAG_AMPDU_DETAILS;
+		rx_status.ampdu_reference = priv->ampdu_ref;
+	}
+
 	/* Set up the HT phy flags */
 	if (rate_n_flags & RATE_MCS_HT_MSK)
 		rx_status.flag |= RX_FLAG_HT;
diff --git a/drivers/net/wireless/iwlwifi/dvm/scan.c b/drivers/net/wireless/iwlwifi/dvm/scan.c
index e3467fa8689..bb9f6252d28 100644
--- a/drivers/net/wireless/iwlwifi/dvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/dvm/scan.c
@@ -612,9 +612,9 @@ static u16 iwl_fill_probe_req(struct ieee80211_mgmt *frame, const u8 *ta,
 		return 0;
 
 	frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
-	memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
+	eth_broadcast_addr(frame->da);
 	memcpy(frame->sa, ta, ETH_ALEN);
-	memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
+	eth_broadcast_addr(frame->bssid);
 	frame->seq_ctrl = 0;
 
 	len += 24;
diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c
index b29b798f755..cd9b6de4273 100644
--- a/drivers/net/wireless/iwlwifi/dvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/dvm/sta.c
@@ -128,10 +128,11 @@ int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
 			       struct iwl_device_cmd *cmd)
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_addsta_cmd *addsta =
-		(struct iwl_addsta_cmd *) cmd->payload;
 
-	return iwl_process_add_sta_resp(priv, addsta, pkt);
+	if (!cmd)
+		return 0;
+
+	return iwl_process_add_sta_resp(priv, (void *)cmd->payload, pkt);
 }
 
 int iwl_send_add_sta(struct iwl_priv *priv,
@@ -150,7 +151,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
 		       sta_id, sta->sta.addr, flags & CMD_ASYNC ?  "a" : "");
 
 	if (!(flags & CMD_ASYNC)) {
-		cmd.flags |= CMD_WANT_SKB;
+		cmd.flags |= CMD_WANT_SKB | CMD_WANT_HCMD;
 		might_sleep();
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index 5971a23aa47..f5ca73a8987 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -127,6 +127,7 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
 static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
 				     struct iwl_tx_cmd *tx_cmd,
 				     struct ieee80211_tx_info *info,
+				     struct ieee80211_sta *sta,
 				     __le16 fc)
 {
 	u32 rate_flags;
@@ -187,8 +188,7 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
 	if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS ||
 			(rate_idx < 0) || (rate_idx > IWL_RATE_COUNT_LEGACY))
 		rate_idx = rate_lowest_index(
-				&priv->eeprom_data->bands[info->band],
-				info->control.sta);
+				&priv->eeprom_data->bands[info->band], sta);
 	/* For 5 GHZ band, remap mac80211 rate indices into driver indices */
 	if (info->band == IEEE80211_BAND_5GHZ)
 		rate_idx += IWL_FIRST_OFDM_RATE;
@@ -291,7 +291,9 @@ static int iwl_sta_id_or_broadcast(struct iwl_rxon_context *context,
 /*
  * start REPLY_TX command process
  */
-int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
+int iwlagn_tx_skb(struct iwl_priv *priv,
+		  struct ieee80211_sta *sta,
+		  struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -345,7 +347,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		sta_id = ctx->bcast_sta_id;
 	else {
 		/* Find index into station table for destination station */
-		sta_id = iwl_sta_id_or_broadcast(ctx, info->control.sta);
+		sta_id = iwl_sta_id_or_broadcast(ctx, sta);
 		if (sta_id == IWL_INVALID_STATION) {
 			IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
 				       hdr->addr1);
@@ -355,8 +357,8 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 	IWL_DEBUG_TX(priv, "station Id %d\n", sta_id);
 
-	if (info->control.sta)
-		sta_priv = (void *)info->control.sta->drv_priv;
+	if (sta)
+		sta_priv = (void *)sta->drv_priv;
 
 	if (sta_priv && sta_priv->asleep &&
 	    (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)) {
@@ -397,7 +399,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	/* TODO need this for burst mode later on */
 	iwlagn_tx_cmd_build_basic(priv, skb, tx_cmd, info, hdr, sta_id);
 
-	iwlagn_tx_cmd_build_rate(priv, tx_cmd, info, fc);
+	iwlagn_tx_cmd_build_rate(priv, tx_cmd, info, sta, fc);
 
 	memset(&info->status, 0, sizeof(info->status));
 
@@ -431,7 +433,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		 * only. Check this here.
 		 */
 		if (WARN_ONCE(tid_data->agg.state != IWL_AGG_ON &&
-		    tid_data->agg.state != IWL_AGG_OFF,
+			      tid_data->agg.state != IWL_AGG_OFF,
 		    "Tx while agg.state = %d", tid_data->agg.state))
 			goto drop_unlock_sta;
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
index 6d8d6dd7943..2cb1efbc5ed 100644
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -295,7 +295,7 @@ static int iwl_alive_notify(struct iwl_priv *priv)
 static int iwl_verify_sec_sparse(struct iwl_priv *priv,
 				  const struct fw_desc *fw_desc)
 {
-	__le32 *image = (__le32 *)fw_desc->v_addr;
+	__le32 *image = (__le32 *)fw_desc->data;
 	u32 len = fw_desc->len;
 	u32 val;
 	u32 i;
@@ -319,7 +319,7 @@ static int iwl_verify_sec_sparse(struct iwl_priv *priv,
 static void iwl_print_mismatch_sec(struct iwl_priv *priv,
 				    const struct fw_desc *fw_desc)
 {
-	__le32 *image = (__le32 *)fw_desc->v_addr;
+	__le32 *image = (__le32 *)fw_desc->data;
 	u32 len = fw_desc->len;
 	u32 val;
 	u32 offs;
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
index 06ca505bb2c..59a5f78402f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
@@ -29,6 +29,7 @@
 
 #include <linux/tracepoint.h>
 #include <linux/device.h>
+#include "iwl-trans.h"
 
 
 #if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
@@ -237,27 +238,34 @@ TRACE_EVENT(iwlwifi_dbg,
 #define TRACE_SYSTEM iwlwifi
 
 TRACE_EVENT(iwlwifi_dev_hcmd,
-	TP_PROTO(const struct device *dev, u32 flags,
-		 const void *hcmd0, size_t len0,
-		 const void *hcmd1, size_t len1,
-		 const void *hcmd2, size_t len2),
-	TP_ARGS(dev, flags, hcmd0, len0, hcmd1, len1, hcmd2, len2),
+	TP_PROTO(const struct device *dev,
+		 struct iwl_host_cmd *cmd, u16 total_size,
+		 const void *hdr, size_t hdr_len),
+	TP_ARGS(dev, cmd, total_size, hdr, hdr_len),
 	TP_STRUCT__entry(
 		DEV_ENTRY
-		__dynamic_array(u8, hcmd0, len0)
-		__dynamic_array(u8, hcmd1, len1)
-		__dynamic_array(u8, hcmd2, len2)
+		__dynamic_array(u8, hcmd, total_size)
 		__field(u32, flags)
 	),
 	TP_fast_assign(
+		int i, offset = hdr_len;
+
 		DEV_ASSIGN;
-		memcpy(__get_dynamic_array(hcmd0), hcmd0, len0);
-		memcpy(__get_dynamic_array(hcmd1), hcmd1, len1);
-		memcpy(__get_dynamic_array(hcmd2), hcmd2, len2);
-		__entry->flags = flags;
+		__entry->flags = cmd->flags;
+		memcpy(__get_dynamic_array(hcmd), hdr, hdr_len);
+
+		for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
+			if (!cmd->len[i])
+				continue;
+			if (!(cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY))
+				continue;
+			memcpy((u8 *)__get_dynamic_array(hcmd) + offset,
+			       cmd->data[i], cmd->len[i]);
+			offset += cmd->len[i];
+		}
 	),
 	TP_printk("[%s] hcmd %#.2x (%ssync)",
-		  __get_str(dev), ((u8 *)__get_dynamic_array(hcmd0))[0],
+		  __get_str(dev), ((u8 *)__get_dynamic_array(hcmd))[0],
 		  __entry->flags & CMD_ASYNC ? "a" : "")
 );
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index cc41cfaedfb..198634b75ed 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -64,6 +64,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/firmware.h>
 #include <linux/module.h>
+#include <linux/vmalloc.h>
 
 #include "iwl-drv.h"
 #include "iwl-debug.h"
@@ -101,6 +102,10 @@ MODULE_VERSION(DRV_VERSION);
 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+static struct dentry *iwl_dbgfs_root;
+#endif
+
 /**
  * struct iwl_drv - drv common data
  * @list: list of drv structures using this opmode
@@ -126,6 +131,12 @@ struct iwl_drv {
 	char firmware_name[25];         /* name of firmware file to load */
 
 	struct completion request_firmware_complete;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	struct dentry *dbgfs_drv;
+	struct dentry *dbgfs_trans;
+	struct dentry *dbgfs_op_mode;
+#endif
 };
 
 #define DVM_OP_MODE	0
@@ -154,10 +165,8 @@ struct fw_sec {
 
 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 {
-	if (desc->v_addr)
-		dma_free_coherent(drv->trans->dev, desc->len,
-				  desc->v_addr, desc->p_addr);
-	desc->v_addr = NULL;
+	vfree(desc->data);
+	desc->data = NULL;
 	desc->len = 0;
 }
 
@@ -176,25 +185,29 @@ static void iwl_dealloc_ucode(struct iwl_drv *drv)
 }
 
 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
-		      struct fw_sec *sec)
+			     struct fw_sec *sec)
 {
-	if (!sec || !sec->size) {
-		desc->v_addr = NULL;
+	void *data;
+
+	desc->data = NULL;
+
+	if (!sec || !sec->size)
 		return -EINVAL;
-	}
 
-	desc->v_addr = dma_alloc_coherent(drv->trans->dev, sec->size,
-					  &desc->p_addr, GFP_KERNEL);
-	if (!desc->v_addr)
+	data = vmalloc(sec->size);
+	if (!data)
 		return -ENOMEM;
 
 	desc->len = sec->size;
 	desc->offset = sec->offset;
-	memcpy(desc->v_addr, sec->data, sec->size);
+	memcpy(data, sec->data, desc->len);
+	desc->data = data;
+
 	return 0;
 }
 
-static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
+static void iwl_req_fw_callback(const struct firmware *ucode_raw,
+				void *context);
 
 #define UCODE_EXPERIMENTAL_INDEX	100
 #define UCODE_EXPERIMENTAL_TAG		"exp"
@@ -231,7 +244,7 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 
 	return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 				       drv->trans->dev,
-				       GFP_KERNEL, drv, iwl_ucode_callback);
+				       GFP_KERNEL, drv, iwl_req_fw_callback);
 }
 
 struct fw_img_parsing {
@@ -759,13 +772,57 @@ static int validate_sec_sizes(struct iwl_drv *drv,
 	return 0;
 }
 
+static struct iwl_op_mode *
+_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
+{
+	const struct iwl_op_mode_ops *ops = op->ops;
+	struct dentry *dbgfs_dir = NULL;
+	struct iwl_op_mode *op_mode = NULL;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	drv->dbgfs_op_mode = debugfs_create_dir(op->name,
+						drv->dbgfs_drv);
+	if (!drv->dbgfs_op_mode) {
+		IWL_ERR(drv,
+			"failed to create opmode debugfs directory\n");
+		return op_mode;
+	}
+	dbgfs_dir = drv->dbgfs_op_mode;
+#endif
+
+	op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (!op_mode) {
+		debugfs_remove_recursive(drv->dbgfs_op_mode);
+		drv->dbgfs_op_mode = NULL;
+	}
+#endif
+
+	return op_mode;
+}
+
+static void _iwl_op_mode_stop(struct iwl_drv *drv)
+{
+	/* op_mode can be NULL if its start failed */
+	if (drv->op_mode) {
+		iwl_op_mode_stop(drv->op_mode);
+		drv->op_mode = NULL;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+		debugfs_remove_recursive(drv->dbgfs_op_mode);
+		drv->dbgfs_op_mode = NULL;
+#endif
+	}
+}
+
 /**
- * iwl_ucode_callback - callback when firmware was loaded
+ * iwl_req_fw_callback - callback when firmware was loaded
  *
  * If loaded successfully, copies the firmware into buffers
  * for the card to fetch (via DMA).
  */
-static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
+static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 {
 	struct iwl_drv *drv = context;
 	struct iwl_fw *fw = &drv->fw;
@@ -908,8 +965,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
 	list_add_tail(&drv->list, &op->drv);
 
 	if (op->ops) {
-		const struct iwl_op_mode_ops *ops = op->ops;
-		drv->op_mode = ops->start(drv->trans, drv->cfg, &drv->fw);
+		drv->op_mode = _iwl_op_mode_start(drv, op);
 
 		if (!drv->op_mode) {
 			mutex_unlock(&iwlwifi_opmode_table_mtx);
@@ -969,24 +1025,51 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
 	init_completion(&drv->request_firmware_complete);
 	INIT_LIST_HEAD(&drv->list);
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	/* Create the device debugfs entries. */
+	drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
+					    iwl_dbgfs_root);
+
+	if (!drv->dbgfs_drv) {
+		IWL_ERR(drv, "failed to create debugfs directory\n");
+		goto err_free_drv;
+	}
+
+	/* Create transport layer debugfs dir */
+	drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
+
+	if (!drv->trans->dbgfs_dir) {
+		IWL_ERR(drv, "failed to create transport debugfs directory\n");
+		goto err_free_dbgfs;
+	}
+#endif
+
 	ret = iwl_request_firmware(drv, true);
 
 	if (ret) {
 		IWL_ERR(trans, "Couldn't request the fw\n");
-		kfree(drv);
-		drv = NULL;
+		goto err_fw;
 	}
 
 	return drv;
+
+err_fw:
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+err_free_dbgfs:
+	debugfs_remove_recursive(drv->dbgfs_drv);
+err_free_drv:
+#endif
+	kfree(drv);
+	drv = NULL;
+
+	return drv;
 }
 
 void iwl_drv_stop(struct iwl_drv *drv)
 {
 	wait_for_completion(&drv->request_firmware_complete);
 
-	/* op_mode can be NULL if its start failed */
-	if (drv->op_mode)
-		iwl_op_mode_stop(drv->op_mode);
+	_iwl_op_mode_stop(drv);
 
 	iwl_dealloc_ucode(drv);
 
@@ -1000,6 +1083,10 @@ void iwl_drv_stop(struct iwl_drv *drv)
 		list_del(&drv->list);
 	mutex_unlock(&iwlwifi_opmode_table_mtx);
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	debugfs_remove_recursive(drv->dbgfs_drv);
+#endif
+
 	kfree(drv);
 }
 
@@ -1022,15 +1109,18 @@ int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
 {
 	int i;
 	struct iwl_drv *drv;
+	struct iwlwifi_opmode_table *op;
 
 	mutex_lock(&iwlwifi_opmode_table_mtx);
 	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
-		if (strcmp(iwlwifi_opmode_table[i].name, name))
+		op = &iwlwifi_opmode_table[i];
+		if (strcmp(op->name, name))
 			continue;
-		iwlwifi_opmode_table[i].ops = ops;
-		list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
-			drv->op_mode = ops->start(drv->trans, drv->cfg,
-						  &drv->fw);
+		op->ops = ops;
+		/* TODO: need to handle exceptional case */
+		list_for_each_entry(drv, &op->drv, list)
+			drv->op_mode = _iwl_op_mode_start(drv, op);
+
 		mutex_unlock(&iwlwifi_opmode_table_mtx);
 		return 0;
 	}
@@ -1051,12 +1141,9 @@ void iwl_opmode_deregister(const char *name)
 		iwlwifi_opmode_table[i].ops = NULL;
 
 		/* call the stop routine for all devices */
-		list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) {
-			if (drv->op_mode) {
-				iwl_op_mode_stop(drv->op_mode);
-				drv->op_mode = NULL;
-			}
-		}
+		list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
+			_iwl_op_mode_stop(drv);
+
 		mutex_unlock(&iwlwifi_opmode_table_mtx);
 		return;
 	}
@@ -1076,6 +1163,14 @@ static int __init iwl_drv_init(void)
 	pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
 	pr_info(DRV_COPYRIGHT "\n");
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	/* Create the root of iwlwifi debugfs subsystem. */
+	iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
+
+	if (!iwl_dbgfs_root)
+		return -EFAULT;
+#endif
+
 	return iwl_pci_register_driver();
 }
 module_init(iwl_drv_init);
@@ -1083,6 +1178,10 @@ module_init(iwl_drv_init);
 static void __exit iwl_drv_exit(void)
 {
 	iwl_pci_unregister_driver();
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	debugfs_remove_recursive(iwl_dbgfs_root);
+#endif
 }
 module_exit(iwl_drv_exit);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h
index 2cbf137b25b..285de5f68c0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.h
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.h
@@ -90,9 +90,9 @@
  * 4) The bus specific component configures the bus
  * 5) The bus specific component calls to the drv bus agnostic part
  *    (iwl_drv_start)
- * 6) iwl_drv_start fetches the fw ASYNC, iwl_ucode_callback
- * 7) iwl_ucode_callback parses the fw file
- * 8) iwl_ucode_callback starts the wifi implementation to matches the fw
+ * 6) iwl_drv_start fetches the fw ASYNC, iwl_req_fw_callback
+ * 7) iwl_req_fw_callback parses the fw file
+ * 8) iwl_req_fw_callback starts the wifi implementation to matches the fw
  */
 
 struct iwl_drv;
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h
index 9c07c670a1c..a5e425718f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h
@@ -85,8 +85,6 @@ struct iwl_eeprom_data {
 	int n_hw_addrs;
 	u8 hw_addr[ETH_ALEN];
 
-	u16 radio_config;
-
 	u8 calib_version;
 	__le16 calib_voltage;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 2153e4cc557..d1a86b66bc5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -124,8 +124,7 @@ struct iwl_ucode_capabilities {
 
 /* one for each uCode image (inst/data, init/runtime/wowlan) */
 struct fw_desc {
-	dma_addr_t p_addr;	/* hardware address */
-	void *v_addr;		/* software address */
+	const void *data;	/* vmalloc'ed data */
 	u32 len;		/* size in bytes */
 	u32 offset;		/* offset in the device */
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/iwlwifi/iwl-op-mode.h
index 64886f95664..c8d9b951746 100644
--- a/drivers/net/wireless/iwlwifi/iwl-op-mode.h
+++ b/drivers/net/wireless/iwlwifi/iwl-op-mode.h
@@ -134,7 +134,8 @@ struct iwl_cfg;
 struct iwl_op_mode_ops {
 	struct iwl_op_mode *(*start)(struct iwl_trans *trans,
 				     const struct iwl_cfg *cfg,
-				     const struct iwl_fw *fw);
+				     const struct iwl_fw *fw,
+				     struct dentry *dbgfs_dir);
 	void (*stop)(struct iwl_op_mode *op_mode);
 	int (*rx)(struct iwl_op_mode *op_mode, struct iwl_rx_cmd_buffer *rxb,
 		  struct iwl_device_cmd *cmd);
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 92576a3e84e..ff115423288 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -184,14 +184,20 @@ struct iwl_rx_packet {
  * @CMD_SYNC: The caller will be stalled until the fw responds to the command
  * @CMD_ASYNC: Return right away and don't want for the response
  * @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the
- *	response.
+ *	response. The caller needs to call iwl_free_resp when done.
+ * @CMD_WANT_HCMD: The caller needs to get the HCMD that was sent in the
+ *	response handler. Chunks flagged by %IWL_HCMD_DFL_NOCOPY won't be
+ *	copied. The pointer passed to the response handler is in the transport
+ *	ownership and don't need to be freed by the op_mode. This also means
+ *	that the pointer is invalidated after the op_mode's handler returns.
  * @CMD_ON_DEMAND: This command is sent by the test mode pipe.
  */
 enum CMD_MODE {
 	CMD_SYNC = 0,
 	CMD_ASYNC = BIT(0),
 	CMD_WANT_SKB = BIT(1),
-	CMD_ON_DEMAND = BIT(2),
+	CMD_WANT_HCMD = BIT(2),
+	CMD_ON_DEMAND = BIT(3),
 };
 
 #define DEF_CMD_PAYLOAD_SIZE 320
@@ -460,6 +466,8 @@ struct iwl_trans {
 	size_t dev_cmd_headroom;
 	char dev_cmd_pool_name[50];
 
+	struct dentry *dbgfs_dir;
+
 	/* pointer to trans specific struct */
 	/*Ensure that this pointer will always be aligned to sizeof pointer */
 	char trans_specific[0] __aligned(sizeof(void *));
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index f4c3500b68c..2a467539670 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -263,8 +263,6 @@ MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
 /* PCI registers */
 #define PCI_CFG_RETRY_TIMEOUT	0x041
 
-#ifndef CONFIG_IWLWIFI_IDI
-
 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	const struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
@@ -282,8 +280,14 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!trans_pcie->drv)
 		goto out_free_trans;
 
+	/* register transport layer debugfs here */
+	if (iwl_trans_dbgfs_register(iwl_trans, iwl_trans->dbgfs_dir))
+		goto out_free_drv;
+
 	return 0;
 
+out_free_drv:
+	iwl_drv_stop(trans_pcie->drv);
 out_free_trans:
 	iwl_trans_pcie_free(iwl_trans);
 	pci_set_drvdata(pdev, NULL);
@@ -301,8 +305,6 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 	pci_set_drvdata(pdev, NULL);
 }
 
-#endif /* CONFIG_IWLWIFI_IDI */
-
 #ifdef CONFIG_PM_SLEEP
 
 static int iwl_pci_suspend(struct device *device)
@@ -347,15 +349,6 @@ static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);
 
 #endif
 
-#ifdef CONFIG_IWLWIFI_IDI
-/*
- * Defined externally in iwl-idi.c
- */
-int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
-void __devexit iwl_pci_remove(struct pci_dev *pdev);
-
-#endif /* CONFIG_IWLWIFI_IDI */
-
 static struct pci_driver iwl_pci_driver = {
 	.name = DRV_NAME,
 	.id_table = iwl_hw_card_ids,
diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h
index d9694c58208..401178f44a3 100644
--- a/drivers/net/wireless/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/iwlwifi/pcie/internal.h
@@ -184,6 +184,7 @@ struct iwl_queue {
 
 struct iwl_pcie_tx_queue_entry {
 	struct iwl_device_cmd *cmd;
+	struct iwl_device_cmd *copy_cmd;
 	struct sk_buff *skb;
 	struct iwl_cmd_meta meta;
 };
@@ -310,7 +311,7 @@ void iwl_trans_pcie_free(struct iwl_trans *trans);
 ******************************************************/
 void iwl_bg_rx_replenish(struct work_struct *data);
 void iwl_irq_tasklet(struct iwl_trans *trans);
-void iwlagn_rx_replenish(struct iwl_trans *trans);
+void iwl_rx_replenish(struct iwl_trans *trans);
 void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans,
 				   struct iwl_rx_queue *q);
 
@@ -350,7 +351,7 @@ int iwl_queue_space(const struct iwl_queue *q);
 /*****************************************************
 * Error handling
 ******************************************************/
-int iwl_dump_fh(struct iwl_trans *trans, char **buf, bool display);
+int iwl_dump_fh(struct iwl_trans *trans, char **buf);
 void iwl_dump_csr(struct iwl_trans *trans);
 
 /*****************************************************
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 39a6ca1f009..17c8e5d8268 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -35,10 +35,6 @@
 #include "internal.h"
 #include "iwl-op-mode.h"
 
-#ifdef CONFIG_IWLWIFI_IDI
-#include "iwl-amfh.h"
-#endif
-
 /******************************************************************************
  *
  * RX path functions
@@ -181,15 +177,15 @@ void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans,
 }
 
 /**
- * iwlagn_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
+ * iwl_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
  */
-static inline __le32 iwlagn_dma_addr2rbd_ptr(dma_addr_t dma_addr)
+static inline __le32 iwl_dma_addr2rbd_ptr(dma_addr_t dma_addr)
 {
 	return cpu_to_le32((u32)(dma_addr >> 8));
 }
 
 /**
- * iwlagn_rx_queue_restock - refill RX queue from pre-allocated pool
+ * iwl_rx_queue_restock - refill RX queue from pre-allocated pool
  *
  * If there are slots in the RX queue that need to be restocked,
  * and we have free pre-allocated buffers, fill the ranks as much
@@ -199,7 +195,7 @@ static inline __le32 iwlagn_dma_addr2rbd_ptr(dma_addr_t dma_addr)
  * also updates the memory address in the firmware to reference the new
  * target buffer.
  */
-static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
+static void iwl_rx_queue_restock(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_rx_queue *rxq = &trans_pcie->rxq;
@@ -207,6 +203,17 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
 	struct iwl_rx_mem_buffer *rxb;
 	unsigned long flags;
 
+	/*
+	 * If the device isn't enabled - not need to try to add buffers...
+	 * This can happen when we stop the device and still have an interrupt
+	 * pending. We stop the APM before we sync the interrupts / tasklets
+	 * because we have to (see comment there). On the other hand, since
+	 * the APM is stopped, we cannot access the HW (in particular not prph).
+	 * So don't try to restock if the APM has been already stopped.
+	 */
+	if (!test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status))
+		return;
+
 	spin_lock_irqsave(&rxq->lock, flags);
 	while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
 		/* The overwritten rxb must be a used one */
@@ -219,7 +226,7 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
 		list_del(element);
 
 		/* Point to Rx buffer via next RBD in circular buffer */
-		rxq->bd[rxq->write] = iwlagn_dma_addr2rbd_ptr(rxb->page_dma);
+		rxq->bd[rxq->write] = iwl_dma_addr2rbd_ptr(rxb->page_dma);
 		rxq->queue[rxq->write] = rxb;
 		rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
 		rxq->free_count--;
@@ -230,7 +237,6 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
 	if (rxq->free_count <= RX_LOW_WATERMARK)
 		schedule_work(&trans_pcie->rx_replenish);
 
-
 	/* If we've added more space for the firmware to place data, tell it.
 	 * Increment device's write pointer in multiples of 8. */
 	if (rxq->write_actual != (rxq->write & ~0x7)) {
@@ -241,15 +247,16 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
 	}
 }
 
-/**
- * iwlagn_rx_replenish - Move all used packet from rx_used to rx_free
- *
- * When moving to rx_free an SKB is allocated for the slot.
+/*
+ * iwl_rx_allocate - allocate a page for each used RBD
  *
- * Also restock the Rx queue via iwl_rx_queue_restock.
- * This is called as a scheduled work item (except for during initialization)
+ * A used RBD is an Rx buffer that has been given to the stack. To use it again
+ * a page must be allocated and the RBD must point to the page. This function
+ * doesn't change the HW pointer but handles the list of pages that is used by
+ * iwl_rx_queue_restock. The latter function will update the HW to use the newly
+ * allocated buffers.
  */
-static void iwlagn_rx_allocate(struct iwl_trans *trans, gfp_t priority)
+static void iwl_rx_allocate(struct iwl_trans *trans, gfp_t priority)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_rx_queue *rxq = &trans_pcie->rxq;
@@ -328,23 +335,31 @@ static void iwlagn_rx_allocate(struct iwl_trans *trans, gfp_t priority)
 	}
 }
 
-void iwlagn_rx_replenish(struct iwl_trans *trans)
+/*
+ * iwl_rx_replenish - Move all used buffers from rx_used to rx_free
+ *
+ * When moving to rx_free an page is allocated for the slot.
+ *
+ * Also restock the Rx queue via iwl_rx_queue_restock.
+ * This is called as a scheduled work item (except for during initialization)
+ */
+void iwl_rx_replenish(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	unsigned long flags;
 
-	iwlagn_rx_allocate(trans, GFP_KERNEL);
+	iwl_rx_allocate(trans, GFP_KERNEL);
 
 	spin_lock_irqsave(&trans_pcie->irq_lock, flags);
-	iwlagn_rx_queue_restock(trans);
+	iwl_rx_queue_restock(trans);
 	spin_unlock_irqrestore(&trans_pcie->irq_lock, flags);
 }
 
-static void iwlagn_rx_replenish_now(struct iwl_trans *trans)
+static void iwl_rx_replenish_now(struct iwl_trans *trans)
 {
-	iwlagn_rx_allocate(trans, GFP_ATOMIC);
+	iwl_rx_allocate(trans, GFP_ATOMIC);
 
-	iwlagn_rx_queue_restock(trans);
+	iwl_rx_queue_restock(trans);
 }
 
 void iwl_bg_rx_replenish(struct work_struct *data)
@@ -352,7 +367,7 @@ void iwl_bg_rx_replenish(struct work_struct *data)
 	struct iwl_trans_pcie *trans_pcie =
 	    container_of(data, struct iwl_trans_pcie, rx_replenish);
 
-	iwlagn_rx_replenish(trans_pcie->trans);
+	iwl_rx_replenish(trans_pcie->trans);
 }
 
 static void iwl_rx_handle_rxbuf(struct iwl_trans *trans,
@@ -421,13 +436,23 @@ static void iwl_rx_handle_rxbuf(struct iwl_trans *trans,
 		index = SEQ_TO_INDEX(sequence);
 		cmd_index = get_cmd_index(&txq->q, index);
 
-		if (reclaim)
-			cmd = txq->entries[cmd_index].cmd;
-		else
+		if (reclaim) {
+			struct iwl_pcie_tx_queue_entry *ent;
+			ent = &txq->entries[cmd_index];
+			cmd = ent->copy_cmd;
+			WARN_ON_ONCE(!cmd && ent->meta.flags & CMD_WANT_HCMD);
+		} else {
 			cmd = NULL;
+		}
 
 		err = iwl_op_mode_rx(trans->op_mode, &rxcb, cmd);
 
+		if (reclaim) {
+			/* The original command isn't needed any more */
+			kfree(txq->entries[cmd_index].copy_cmd);
+			txq->entries[cmd_index].copy_cmd = NULL;
+		}
+
 		/*
 		 * After here, we should always check rxcb._page_stolen,
 		 * if it is true then one of the handlers took the page.
@@ -520,7 +545,7 @@ static void iwl_rx_handle(struct iwl_trans *trans)
 			count++;
 			if (count >= 8) {
 				rxq->read = i;
-				iwlagn_rx_replenish_now(trans);
+				iwl_rx_replenish_now(trans);
 				count = 0;
 			}
 		}
@@ -529,9 +554,9 @@ static void iwl_rx_handle(struct iwl_trans *trans)
 	/* Backtrack one entry */
 	rxq->read = i;
 	if (fill_rx)
-		iwlagn_rx_replenish_now(trans);
+		iwl_rx_replenish_now(trans);
 	else
-		iwlagn_rx_queue_restock(trans);
+		iwl_rx_queue_restock(trans);
 }
 
 /**
@@ -555,7 +580,7 @@ static void iwl_irq_handle_error(struct iwl_trans *trans)
 	}
 
 	iwl_dump_csr(trans);
-	iwl_dump_fh(trans, NULL, false);
+	iwl_dump_fh(trans, NULL);
 
 	iwl_op_mode_nic_error(trans->op_mode);
 }
@@ -713,11 +738,9 @@ void iwl_irq_tasklet(struct iwl_trans *trans)
 		/* Disable periodic interrupt; we use it as just a one-shot. */
 		iwl_write8(trans, CSR_INT_PERIODIC_REG,
 			    CSR_INT_PERIODIC_DIS);
-#ifdef CONFIG_IWLWIFI_IDI
-		iwl_amfh_rx_handler();
-#else
+
 		iwl_rx_handle(trans);
-#endif
+
 		/*
 		 * Enable periodic interrupt in 8 msec only if we received
 		 * real RX interrupt (instead of just periodic int), to catch
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 939c2f78df5..fe0fffd0430 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -216,7 +216,7 @@ static int iwl_rx_init(struct iwl_trans *trans)
 	rxq->free_count = 0;
 	spin_unlock_irqrestore(&rxq->lock, flags);
 
-	iwlagn_rx_replenish(trans);
+	iwl_rx_replenish(trans);
 
 	iwl_trans_rx_hw_init(trans, rxq);
 
@@ -492,10 +492,11 @@ static void iwl_tx_queue_free(struct iwl_trans *trans, int txq_id)
 	iwl_tx_queue_unmap(trans, txq_id);
 
 	/* De-alloc array of command/tx buffers */
-
 	if (txq_id == trans_pcie->cmd_queue)
-		for (i = 0; i < txq->q.n_window; i++)
+		for (i = 0; i < txq->q.n_window; i++) {
 			kfree(txq->entries[i].cmd);
+			kfree(txq->entries[i].copy_cmd);
+		}
 
 	/* De-alloc circular buffer of TFDs */
 	if (txq->q.n_bd) {
@@ -675,13 +676,10 @@ static void iwl_set_pwr_vmain(struct iwl_trans *trans)
 static u16 iwl_pciexp_link_ctrl(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	int pos;
 	u16 pci_lnk_ctl;
 
-	struct pci_dev *pci_dev = trans_pcie->pci_dev;
-
-	pos = pci_pcie_cap(pci_dev);
-	pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
+	pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_LNKCTL,
+				  &pci_lnk_ctl);
 	return pci_lnk_ctl;
 }
 
@@ -854,10 +852,8 @@ static int iwl_nic_init(struct iwl_trans *trans)
 
 	iwl_op_mode_nic_config(trans->op_mode);
 
-#ifndef CONFIG_IWLWIFI_IDI
 	/* Allocate the RX queue, or reset if it is already allocated */
 	iwl_rx_init(trans);
-#endif
 
 	/* Allocate or reset and init all Tx and Command queues */
 	if (iwl_tx_init(trans))
@@ -896,6 +892,7 @@ static int iwl_set_hw_ready(struct iwl_trans *trans)
 static int iwl_prepare_card_hw(struct iwl_trans *trans)
 {
 	int ret;
+	int t = 0;
 
 	IWL_DEBUG_INFO(trans, "iwl_trans_prepare_card_hw enter\n");
 
@@ -908,30 +905,25 @@ static int iwl_prepare_card_hw(struct iwl_trans *trans)
 	iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
 		    CSR_HW_IF_CONFIG_REG_PREPARE);
 
-	ret = iwl_poll_bit(trans, CSR_HW_IF_CONFIG_REG,
-			   ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
-			   CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
+	do {
+		ret = iwl_set_hw_ready(trans);
+		if (ret >= 0)
+			return 0;
 
-	if (ret < 0)
-		return ret;
+		usleep_range(200, 1000);
+		t += 200;
+	} while (t < 150000);
 
-	/* HW should be ready by now, check again. */
-	ret = iwl_set_hw_ready(trans);
-	if (ret >= 0)
-		return 0;
 	return ret;
 }
 
 /*
  * ucode
  */
-static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
-			    const struct fw_desc *section)
+static int iwl_load_firmware_chunk(struct iwl_trans *trans, u32 dst_addr,
+				   dma_addr_t phy_addr, u32 byte_cnt)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	dma_addr_t phy_addr = section->p_addr;
-	u32 byte_cnt = section->len;
-	u32 dst_addr = section->offset;
 	int ret;
 
 	trans_pcie->ucode_write_complete = false;
@@ -945,8 +937,8 @@ static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
 			   dst_addr);
 
 	iwl_write_direct32(trans,
-		FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
-		phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
+			   FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
+			   phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
 
 	iwl_write_direct32(trans,
 			   FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
@@ -965,33 +957,64 @@ static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
 			   FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE	|
 			   FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 
-	IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n",
-		     section_num);
 	ret = wait_event_timeout(trans_pcie->ucode_write_waitq,
 				 trans_pcie->ucode_write_complete, 5 * HZ);
 	if (!ret) {
-		IWL_ERR(trans, "Could not load the [%d] uCode section\n",
-			section_num);
+		IWL_ERR(trans, "Failed to load firmware chunk!\n");
 		return -ETIMEDOUT;
 	}
 
 	return 0;
 }
 
-static int iwl_load_given_ucode(struct iwl_trans *trans,
-				const struct fw_img *image)
+static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
+			    const struct fw_desc *section)
 {
+	u8 *v_addr;
+	dma_addr_t p_addr;
+	u32 offset;
 	int ret = 0;
-		int i;
 
-		for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) {
-			if (!image->sec[i].p_addr)
-				break;
+	IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n",
+		     section_num);
+
+	v_addr = dma_alloc_coherent(trans->dev, PAGE_SIZE, &p_addr, GFP_KERNEL);
+	if (!v_addr)
+		return -ENOMEM;
+
+	for (offset = 0; offset < section->len; offset += PAGE_SIZE) {
+		u32 copy_size;
 
-			ret = iwl_load_section(trans, i, &image->sec[i]);
-			if (ret)
-				return ret;
+		copy_size = min_t(u32, PAGE_SIZE, section->len - offset);
+
+		memcpy(v_addr, (u8 *)section->data + offset, copy_size);
+		ret = iwl_load_firmware_chunk(trans, section->offset + offset,
+					      p_addr, copy_size);
+		if (ret) {
+			IWL_ERR(trans,
+				"Could not load the [%d] uCode section\n",
+				section_num);
+			break;
 		}
+	}
+
+	dma_free_coherent(trans->dev, PAGE_SIZE, v_addr, p_addr);
+	return ret;
+}
+
+static int iwl_load_given_ucode(struct iwl_trans *trans,
+				const struct fw_img *image)
+{
+	int i, ret = 0;
+
+	for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) {
+		if (!image->sec[i].data)
+			break;
+
+		ret = iwl_load_section(trans, i, &image->sec[i]);
+		if (ret)
+			return ret;
+	}
 
 	/* Remove all resets to allow NIC to operate */
 	iwl_write32(trans, CSR_RESET, 0);
@@ -1184,9 +1207,8 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
 	 */
 	if (test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) {
 		iwl_trans_tx_stop(trans);
-#ifndef CONFIG_IWLWIFI_IDI
 		iwl_trans_rx_stop(trans);
-#endif
+
 		/* Power-down device's busmaster DMA clocks */
 		iwl_write_prph(trans, APMG_CLK_DIS_REG,
 			       APMG_CLK_VAL_DMA_CLK_RQT);
@@ -1442,6 +1464,7 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans)
 	return err;
 
 err_free_irq:
+	trans_pcie->irq_requested = false;
 	free_irq(trans_pcie->irq, trans);
 error:
 	iwl_free_isr_ict(trans);
@@ -1456,14 +1479,16 @@ static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans,
 	bool hw_rfkill;
 	unsigned long flags;
 
+	spin_lock_irqsave(&trans_pcie->irq_lock, flags);
+	iwl_disable_interrupts(trans);
+	spin_unlock_irqrestore(&trans_pcie->irq_lock, flags);
+
 	iwl_apm_stop(trans);
 
 	spin_lock_irqsave(&trans_pcie->irq_lock, flags);
 	iwl_disable_interrupts(trans);
 	spin_unlock_irqrestore(&trans_pcie->irq_lock, flags);
 
-	iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
-
 	if (!op_mode_leaving) {
 		/*
 		 * Even if we stop the HW, we still want the RF kill
@@ -1551,9 +1576,8 @@ void iwl_trans_pcie_free(struct iwl_trans *trans)
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 
 	iwl_trans_pcie_tx_free(trans);
-#ifndef CONFIG_IWLWIFI_IDI
 	iwl_trans_pcie_rx_free(trans);
-#endif
+
 	if (trans_pcie->irq_requested == true) {
 		free_irq(trans_pcie->irq, trans);
 		iwl_free_isr_ict(trans);
@@ -1649,13 +1673,9 @@ static const char *get_fh_string(int cmd)
 #undef IWL_CMD
 }
 
-int iwl_dump_fh(struct iwl_trans *trans, char **buf, bool display)
+int iwl_dump_fh(struct iwl_trans *trans, char **buf)
 {
 	int i;
-#ifdef CONFIG_IWLWIFI_DEBUG
-	int pos = 0;
-	size_t bufsz = 0;
-#endif
 	static const u32 fh_tbl[] = {
 		FH_RSCSR_CHNL0_STTS_WPTR_REG,
 		FH_RSCSR_CHNL0_RBDCB_BASE_REG,
@@ -1667,29 +1687,35 @@ int iwl_dump_fh(struct iwl_trans *trans, char **buf, bool display)
 		FH_TSSR_TX_STATUS_REG,
 		FH_TSSR_TX_ERROR_REG
 	};
-#ifdef CONFIG_IWLWIFI_DEBUG
-	if (display) {
-		bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (buf) {
+		int pos = 0;
+		size_t bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+
 		*buf = kmalloc(bufsz, GFP_KERNEL);
 		if (!*buf)
 			return -ENOMEM;
+
 		pos += scnprintf(*buf + pos, bufsz - pos,
 				"FH register values:\n");
-		for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+
+		for (i = 0; i < ARRAY_SIZE(fh_tbl); i++)
 			pos += scnprintf(*buf + pos, bufsz - pos,
 				"  %34s: 0X%08x\n",
 				get_fh_string(fh_tbl[i]),
 				iwl_read_direct32(trans, fh_tbl[i]));
-		}
+
 		return pos;
 	}
 #endif
+
 	IWL_ERR(trans, "FH register values:\n");
-	for (i = 0; i <  ARRAY_SIZE(fh_tbl); i++) {
+	for (i = 0; i <  ARRAY_SIZE(fh_tbl); i++)
 		IWL_ERR(trans, "  %34s: 0X%08x\n",
 			get_fh_string(fh_tbl[i]),
 			iwl_read_direct32(trans, fh_tbl[i]));
-	}
+
 	return 0;
 }
 
@@ -1769,7 +1795,7 @@ void iwl_dump_csr(struct iwl_trans *trans)
 #define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
 	if (!debugfs_create_file(#name, mode, parent, trans,		\
 				 &iwl_dbgfs_##name##_ops))		\
-		return -ENOMEM;						\
+		goto err;						\
 } while (0)
 
 /* file operation */
@@ -1982,11 +2008,11 @@ static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
 				     size_t count, loff_t *ppos)
 {
 	struct iwl_trans *trans = file->private_data;
-	char *buf;
+	char *buf = NULL;
 	int pos = 0;
 	ssize_t ret = -EFAULT;
 
-	ret = pos = iwl_dump_fh(trans, &buf, true);
+	ret = pos = iwl_dump_fh(trans, &buf);
 	if (buf) {
 		ret = simple_read_from_buffer(user_buf,
 					      count, ppos, buf, pos);
@@ -2033,6 +2059,10 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
 	DEBUGFS_ADD_FILE(fh_reg, dir, S_IRUSR);
 	DEBUGFS_ADD_FILE(fw_restart, dir, S_IWUSR);
 	return 0;
+
+err:
+	IWL_ERR(trans, "failed to create the trans debugfs entry\n");
+	return -ENOMEM;
 }
 #else
 static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 6baf8deef51..105e3af3c62 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -521,12 +521,7 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd)
 	u16 copy_size, cmd_size;
 	bool had_nocopy = false;
 	int i;
-	u8 *cmd_dest;
-#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
-	const void *trace_bufs[IWL_MAX_CMD_TFDS + 1] = {};
-	int trace_lens[IWL_MAX_CMD_TFDS + 1] = {};
-	int trace_idx;
-#endif
+	u32 cmd_pos;
 
 	copy_size = sizeof(out_cmd->hdr);
 	cmd_size = sizeof(out_cmd->hdr);
@@ -584,15 +579,31 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd)
 					 INDEX_TO_SEQ(q->write_ptr));
 
 	/* and copy the data that needs to be copied */
-
-	cmd_dest = out_cmd->payload;
+	cmd_pos = offsetof(struct iwl_device_cmd, payload);
 	for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
 		if (!cmd->len[i])
 			continue;
 		if (cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY)
 			break;
-		memcpy(cmd_dest, cmd->data[i], cmd->len[i]);
-		cmd_dest += cmd->len[i];
+		memcpy((u8 *)out_cmd + cmd_pos, cmd->data[i], cmd->len[i]);
+		cmd_pos += cmd->len[i];
+	}
+
+	WARN_ON_ONCE(txq->entries[idx].copy_cmd);
+
+	/*
+	 * since out_cmd will be the source address of the FH, it will write
+	 * the retry count there. So when the user needs to receivce the HCMD
+	 * that corresponds to the response in the response handler, it needs
+	 * to set CMD_WANT_HCMD.
+	 */
+	if (cmd->flags & CMD_WANT_HCMD) {
+		txq->entries[idx].copy_cmd =
+			kmemdup(out_cmd, cmd_pos, GFP_ATOMIC);
+		if (unlikely(!txq->entries[idx].copy_cmd)) {
+			idx = -ENOMEM;
+			goto out;
+		}
 	}
 
 	IWL_DEBUG_HC(trans,
@@ -612,11 +623,6 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd)
 	dma_unmap_len_set(out_meta, len, copy_size);
 
 	iwlagn_txq_attach_buf_to_tfd(trans, txq, phys_addr, copy_size, 1);
-#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
-	trace_bufs[0] = &out_cmd->hdr;
-	trace_lens[0] = copy_size;
-	trace_idx = 1;
-#endif
 
 	for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
 		if (!cmd->len[i])
@@ -635,25 +641,14 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd)
 
 		iwlagn_txq_attach_buf_to_tfd(trans, txq, phys_addr,
 					     cmd->len[i], 0);
-#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
-		trace_bufs[trace_idx] = cmd->data[i];
-		trace_lens[trace_idx] = cmd->len[i];
-		trace_idx++;
-#endif
 	}
 
 	out_meta->flags = cmd->flags;
 
 	txq->need_update = 1;
 
-	/* check that tracing gets all possible blocks */
-	BUILD_BUG_ON(IWL_MAX_CMD_TFDS + 1 != 3);
-#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
-	trace_iwlwifi_dev_hcmd(trans->dev, cmd->flags,
-			       trace_bufs[0], trace_lens[0],
-			       trace_bufs[1], trace_lens[1],
-			       trace_bufs[2], trace_lens[2]);
-#endif
+	trace_iwlwifi_dev_hcmd(trans->dev, cmd, cmd_size,
+			       &out_cmd->hdr, copy_size);
 
 	/* start timer if queue currently empty */
 	if (q->read_ptr == q->write_ptr && trans_pcie->wd_timeout)
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index eb5de800ed9..1c10b542ab2 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -1254,6 +1254,7 @@ static int lbs_associate(struct lbs_private *priv,
 			netif_tx_wake_all_queues(priv->dev);
 	}
 
+	kfree(cmd);
 done:
 	lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
 	return ret;
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 26e68326710..aaa297315c4 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1159,6 +1159,22 @@ void lbs_set_mac_control(struct lbs_private *priv)
 	lbs_deb_leave(LBS_DEB_CMD);
 }
 
+int lbs_set_mac_control_sync(struct lbs_private *priv)
+{
+	struct cmd_ds_mac_control cmd;
+	int ret = 0;
+
+	lbs_deb_enter(LBS_DEB_CMD);
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(priv->mac_control);
+	cmd.reserved = 0;
+	ret = lbs_cmd_with_response(priv, CMD_MAC_CONTROL, &cmd);
+
+	lbs_deb_leave(LBS_DEB_CMD);
+	return ret;
+}
+
 /**
  *  lbs_allocate_cmd_buffer - allocates the command buffer and links
  *  it to command free queue
diff --git a/drivers/net/wireless/libertas/cmd.h b/drivers/net/wireless/libertas/cmd.h
index ab07608e13d..4279e8ab95f 100644
--- a/drivers/net/wireless/libertas/cmd.h
+++ b/drivers/net/wireless/libertas/cmd.h
@@ -96,6 +96,7 @@ void lbs_ps_confirm_sleep(struct lbs_private *priv);
 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on);
 
 void lbs_set_mac_control(struct lbs_private *priv);
+int lbs_set_mac_control_sync(struct lbs_private *priv);
 
 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
 		     s16 *maxlevel);
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 76caebaa439..4cb234349fb 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -1314,6 +1314,7 @@ static void if_sdio_remove(struct sdio_func *func)
 		kfree(packet);
 	}
 
+	kfree(card);
 	lbs_deb_leave(LBS_DEB_SDIO);
 }
 
@@ -1325,6 +1326,11 @@ static int if_sdio_suspend(struct device *dev)
 
 	mmc_pm_flag_t flags = sdio_get_host_pm_caps(func);
 
+	/* If we're powered off anyway, just let the mmc layer remove the
+	 * card. */
+	if (!lbs_iface_active(card->priv))
+		return -ENOSYS;
+
 	dev_info(dev, "%s: suspend: PM flags = 0x%x\n",
 		 sdio_func_id(func), flags);
 
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 58048189bd2..0c02f0483d1 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -571,7 +571,10 @@ static int lbs_thread(void *data)
 			netdev_info(dev, "Timeout submitting command 0x%04x\n",
 				    le16_to_cpu(cmdnode->cmdbuf->command));
 			lbs_complete_command(priv, cmdnode, -ETIMEDOUT);
-			if (priv->reset_card)
+
+			/* Reset card, but only when it isn't in the process
+			 * of being shutdown anyway. */
+			if (!dev->dismantle && priv->reset_card)
 				priv->reset_card(priv);
 		}
 		priv->cmd_timed_out = 0;
@@ -679,8 +682,10 @@ static int lbs_setup_firmware(struct lbs_private *priv)
 
 	/* Send cmd to FW to enable 11D function */
 	ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_11D_ENABLE, 1);
+	if (ret)
+		goto done;
 
-	lbs_set_mac_control(priv);
+	ret = lbs_set_mac_control_sync(priv);
 done:
 	lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
 	return ret;
diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index a03457292c8..7001856241e 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -227,7 +227,9 @@ static void lbtf_free_adapter(struct lbtf_private *priv)
 	lbtf_deb_leave(LBTF_DEB_MAIN);
 }
 
-static void lbtf_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void lbtf_op_tx(struct ieee80211_hw *hw,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
 {
 	struct lbtf_private *priv = hw->priv;
 
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 00838395778..429ca3215fd 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -38,7 +38,7 @@ MODULE_AUTHOR("Jouni Malinen");
 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
 MODULE_LICENSE("GPL");
 
-static u32 wmediumd_pid;
+static u32 wmediumd_portid;
 
 static int radios = 2;
 module_param(radios, int, 0444);
@@ -545,7 +545,7 @@ static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
 
 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
 				       struct sk_buff *my_skb,
-				       int dst_pid)
+				       int dst_portid)
 {
 	struct sk_buff *skb;
 	struct mac80211_hwsim_data *data = hw->priv;
@@ -619,7 +619,7 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_unicast(&init_net, skb, dst_pid);
+	genlmsg_unicast(&init_net, skb, dst_portid);
 
 	/* Enqueue the packet */
 	skb_queue_tail(&data->pending, my_skb);
@@ -709,11 +709,13 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
 	return ack;
 }
 
-static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
+			      struct ieee80211_tx_control *control,
+			      struct sk_buff *skb)
 {
 	bool ack;
 	struct ieee80211_tx_info *txi;
-	u32 _pid;
+	u32 _portid;
 
 	mac80211_hwsim_monitor_rx(hw, skb);
 
@@ -724,10 +726,10 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	}
 
 	/* wmediumd mode check */
-	_pid = ACCESS_ONCE(wmediumd_pid);
+	_portid = ACCESS_ONCE(wmediumd_portid);
 
-	if (_pid)
-		return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
+	if (_portid)
+		return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
 
 	/* NO wmediumd detected, perfect medium simulation */
 	ack = mac80211_hwsim_tx_frame_no_nl(hw, skb);
@@ -812,7 +814,7 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
 	struct ieee80211_hw *hw = arg;
 	struct sk_buff *skb;
 	struct ieee80211_tx_info *info;
-	u32 _pid;
+	u32 _portid;
 
 	hwsim_check_magic(vif);
 
@@ -829,10 +831,10 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
 	mac80211_hwsim_monitor_rx(hw, skb);
 
 	/* wmediumd mode check */
-	_pid = ACCESS_ONCE(wmediumd_pid);
+	_portid = ACCESS_ONCE(wmediumd_portid);
 
-	if (_pid)
-		return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
+	if (_portid)
+		return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
 
 	mac80211_hwsim_tx_frame_no_nl(hw, skb);
 	dev_kfree_skb(skb);
@@ -1313,7 +1315,7 @@ static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 	struct sk_buff *skb;
 	struct ieee80211_pspoll *pspoll;
-	u32 _pid;
+	u32 _portid;
 
 	if (!vp->assoc)
 		return;
@@ -1334,10 +1336,10 @@ static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 	memcpy(pspoll->ta, mac, ETH_ALEN);
 
 	/* wmediumd mode check */
-	_pid = ACCESS_ONCE(wmediumd_pid);
+	_portid = ACCESS_ONCE(wmediumd_portid);
 
-	if (_pid)
-		return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
+	if (_portid)
+		return mac80211_hwsim_tx_frame_nl(data->hw, skb, _portid);
 
 	if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
 		printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__);
@@ -1351,7 +1353,7 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 	struct sk_buff *skb;
 	struct ieee80211_hdr *hdr;
-	u32 _pid;
+	u32 _portid;
 
 	if (!vp->assoc)
 		return;
@@ -1373,10 +1375,10 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
 	memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
 
 	/* wmediumd mode check */
-	_pid = ACCESS_ONCE(wmediumd_pid);
+	_portid = ACCESS_ONCE(wmediumd_portid);
 
-	if (_pid)
-		return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
+	if (_portid)
+		return mac80211_hwsim_tx_frame_nl(data->hw, skb, _portid);
 
 	if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
 		printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
@@ -1630,10 +1632,10 @@ static int hwsim_register_received_nl(struct sk_buff *skb_2,
 	if (info == NULL)
 		goto out;
 
-	wmediumd_pid = info->snd_pid;
+	wmediumd_portid = info->snd_portid;
 
 	printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
-	       "switching to wmediumd mode with pid %d\n", info->snd_pid);
+	       "switching to wmediumd mode with pid %d\n", info->snd_portid);
 
 	return 0;
 out:
@@ -1670,10 +1672,10 @@ static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
 	if (state != NETLINK_URELEASE)
 		return NOTIFY_DONE;
 
-	if (notify->pid == wmediumd_pid) {
+	if (notify->portid == wmediumd_portid) {
 		printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
 		       " socket, switching to perfect channel medium\n");
-		wmediumd_pid = 0;
+		wmediumd_portid = 0;
 	}
 	return NOTIFY_DONE;
 
@@ -1727,6 +1729,7 @@ static const struct ieee80211_iface_limit hwsim_if_limits[] = {
 #endif
 				 BIT(NL80211_IFTYPE_AP) |
 				 BIT(NL80211_IFTYPE_P2P_GO) },
+	{ .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
 };
 
 static const struct ieee80211_iface_combination hwsim_if_comb = {
@@ -1813,7 +1816,8 @@ static int __init init_mac80211_hwsim(void)
 			BIT(NL80211_IFTYPE_P2P_CLIENT) |
 			BIT(NL80211_IFTYPE_P2P_GO) |
 			BIT(NL80211_IFTYPE_ADHOC) |
-			BIT(NL80211_IFTYPE_MESH_POINT);
+			BIT(NL80211_IFTYPE_MESH_POINT) |
+			BIT(NL80211_IFTYPE_P2P_DEVICE);
 
 		hw->flags = IEEE80211_HW_MFP_CAPABLE |
 			    IEEE80211_HW_SIGNAL_DBM |
@@ -2052,7 +2056,7 @@ failed:
 	mac80211_hwsim_free();
 	return err;
 }
-
+module_init(init_mac80211_hwsim);
 
 static void __exit exit_mac80211_hwsim(void)
 {
@@ -2063,7 +2067,4 @@ static void __exit exit_mac80211_hwsim(void)
 	mac80211_hwsim_free();
 	unregister_netdev(hwsim_mon);
 }
-
-
-module_init(init_mac80211_hwsim);
 module_exit(exit_mac80211_hwsim);
diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c
index e535c937628..245a371f1a4 100644
--- a/drivers/net/wireless/mwifiex/11n.c
+++ b/drivers/net/wireless/mwifiex/11n.c
@@ -176,23 +176,6 @@ int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
 }
 
 /*
- * This function handles the command response of 11n configuration request.
- *
- * Handling includes changing the header fields into CPU format.
- */
-int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp,
-			struct mwifiex_ds_11n_tx_cfg *tx_cfg)
-{
-	struct host_cmd_ds_11n_cfg *htcfg = &resp->params.htcfg;
-
-	if (tx_cfg) {
-		tx_cfg->tx_htcap = le16_to_cpu(htcfg->ht_tx_cap);
-		tx_cfg->tx_htinfo = le16_to_cpu(htcfg->ht_tx_info);
-	}
-	return 0;
-}
-
-/*
  * This function prepares command of reconfigure Tx buffer.
  *
  * Preparation includes -
@@ -258,27 +241,6 @@ int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
 }
 
 /*
- * This function handles the command response of AMSDU aggregation
- * control request.
- *
- * Handling includes changing the header fields into CPU format.
- */
-int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp,
-				struct mwifiex_ds_11n_amsdu_aggr_ctrl
-				*amsdu_aggr_ctrl)
-{
-	struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl =
-		&resp->params.amsdu_aggr_ctrl;
-
-	if (amsdu_aggr_ctrl) {
-		amsdu_aggr_ctrl->enable = le16_to_cpu(amsdu_ctrl->enable);
-		amsdu_aggr_ctrl->curr_buf_size =
-			le16_to_cpu(amsdu_ctrl->curr_buf_size);
-	}
-	return 0;
-}
-
-/*
  * This function prepares 11n configuration command.
  *
  * Preparation includes -
@@ -726,3 +688,29 @@ int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
 
 	return count;
 }
+
+/*
+ * This function retrieves the entry for specific tx BA stream table by RA and
+ * deletes it.
+ */
+void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra)
+{
+	struct mwifiex_tx_ba_stream_tbl *tbl, *tmp;
+	unsigned long flags;
+
+	if (!ra)
+		return;
+
+	spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
+	list_for_each_entry_safe(tbl, tmp, &priv->tx_ba_stream_tbl_ptr, list) {
+		if (!memcmp(tbl->ra, ra, ETH_ALEN)) {
+			spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock,
+					       flags);
+			mwifiex_11n_delete_tx_ba_stream_tbl_entry(priv, tbl);
+			spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
+		}
+	}
+	spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
+
+	return;
+}
diff --git a/drivers/net/wireless/mwifiex/11n.h b/drivers/net/wireless/mwifiex/11n.h
index 28366e9211f..46006a54a65 100644
--- a/drivers/net/wireless/mwifiex/11n.h
+++ b/drivers/net/wireless/mwifiex/11n.h
@@ -28,8 +28,6 @@ int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
 			  struct host_cmd_ds_command *resp);
 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
 			      struct host_cmd_ds_command *resp);
-int mwifiex_ret_11n_cfg(struct host_cmd_ds_command *resp,
-			struct mwifiex_ds_11n_tx_cfg *tx_cfg);
 int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action,
 			struct mwifiex_ds_11n_tx_cfg *txcfg);
 
@@ -60,15 +58,13 @@ int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
 			      struct mwifiex_ds_rx_reorder_tbl *buf);
 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
 			       struct mwifiex_ds_tx_ba_stream_tbl *buf);
-int mwifiex_ret_amsdu_aggr_ctrl(struct host_cmd_ds_command *resp,
-				struct mwifiex_ds_11n_amsdu_aggr_ctrl
-				*amsdu_aggr_ctrl);
 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
 			     struct host_cmd_ds_command *cmd,
 			     int cmd_action, u16 *buf_size);
 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
 				int cmd_action,
 				struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
+void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra);
 
 /*
  * This function checks whether AMPDU is allowed or not for a particular TID.
@@ -157,4 +153,18 @@ mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
 
 	return false;
 }
+
+/*
+ * This function checks whether associated station is 11n enabled
+ */
+static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
+					     struct mwifiex_sta_node *node)
+{
+
+	if (!node || (priv->bss_role != MWIFIEX_BSS_ROLE_UAP) ||
+	    !priv->ap_11n_enabled)
+		return 0;
+
+	return node->is_11n_enabled;
+}
 #endif /* !_MWIFIEX_11N_H_ */
diff --git a/drivers/net/wireless/mwifiex/11n_aggr.c b/drivers/net/wireless/mwifiex/11n_aggr.c
index ab84eb94374..395f1bfd410 100644
--- a/drivers/net/wireless/mwifiex/11n_aggr.c
+++ b/drivers/net/wireless/mwifiex/11n_aggr.c
@@ -62,9 +62,7 @@ mwifiex_11n_form_amsdu_pkt(struct sk_buff *skb_aggr,
 	};
 	struct tx_packet_hdr *tx_header;
 
-	skb_put(skb_aggr, sizeof(*tx_header));
-
-	tx_header = (struct tx_packet_hdr *) skb_aggr->data;
+	tx_header = (void *)skb_put(skb_aggr, sizeof(*tx_header));
 
 	/* Copy DA and SA */
 	dt_offset = 2 * ETH_ALEN;
@@ -82,12 +80,10 @@ mwifiex_11n_form_amsdu_pkt(struct sk_buff *skb_aggr,
 	tx_header->eth803_hdr.h_proto = htons(skb_src->len + LLC_SNAP_LEN);
 
 	/* Add payload */
-	skb_put(skb_aggr, skb_src->len);
-	memcpy(skb_aggr->data + sizeof(*tx_header), skb_src->data,
-	       skb_src->len);
-	*pad = (((skb_src->len + LLC_SNAP_LEN) & 3)) ? (4 - (((skb_src->len +
-						      LLC_SNAP_LEN)) & 3)) : 0;
-	skb_put(skb_aggr, *pad);
+	memcpy(skb_put(skb_aggr, skb_src->len), skb_src->data, skb_src->len);
+
+	/* Add padding for new MSDU to start from 4 byte boundary */
+	*pad = (4 - ((unsigned long)skb_aggr->tail & 0x3)) % 4;
 
 	return skb_aggr->len + *pad;
 }
diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.c b/drivers/net/wireless/mwifiex/11n_rxreorder.c
index 591ccd33f83..9402b93b9a3 100644
--- a/drivers/net/wireless/mwifiex/11n_rxreorder.c
+++ b/drivers/net/wireless/mwifiex/11n_rxreorder.c
@@ -54,8 +54,13 @@ mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv,
 			tbl->rx_reorder_ptr[i] = NULL;
 		}
 		spin_unlock_irqrestore(&priv->rx_pkt_lock, flags);
-		if (rx_tmp_ptr)
-			mwifiex_process_rx_packet(priv->adapter, rx_tmp_ptr);
+		if (rx_tmp_ptr) {
+			if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+				mwifiex_handle_uap_rx_forward(priv, rx_tmp_ptr);
+			else
+				mwifiex_process_rx_packet(priv->adapter,
+							  rx_tmp_ptr);
+		}
 	}
 
 	spin_lock_irqsave(&priv->rx_pkt_lock, flags);
@@ -97,7 +102,11 @@ mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv,
 		rx_tmp_ptr = tbl->rx_reorder_ptr[i];
 		tbl->rx_reorder_ptr[i] = NULL;
 		spin_unlock_irqrestore(&priv->rx_pkt_lock, flags);
-		mwifiex_process_rx_packet(priv->adapter, rx_tmp_ptr);
+
+		if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+			mwifiex_handle_uap_rx_forward(priv, rx_tmp_ptr);
+		else
+			mwifiex_process_rx_packet(priv->adapter, rx_tmp_ptr);
 	}
 
 	spin_lock_irqsave(&priv->rx_pkt_lock, flags);
@@ -148,7 +157,7 @@ mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv,
  * This function returns the pointer to an entry in Rx reordering
  * table which matches the given TA/TID pair.
  */
-static struct mwifiex_rx_reorder_tbl *
+struct mwifiex_rx_reorder_tbl *
 mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta)
 {
 	struct mwifiex_rx_reorder_tbl *tbl;
@@ -167,6 +176,31 @@ mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta)
 	return NULL;
 }
 
+/* This function retrieves the pointer to an entry in Rx reordering
+ * table which matches the given TA and deletes it.
+ */
+void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta)
+{
+	struct mwifiex_rx_reorder_tbl *tbl, *tmp;
+	unsigned long flags;
+
+	if (!ta)
+		return;
+
+	spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
+	list_for_each_entry_safe(tbl, tmp, &priv->rx_reorder_tbl_ptr, list) {
+		if (!memcmp(tbl->ta, ta, ETH_ALEN)) {
+			spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock,
+					       flags);
+			mwifiex_del_rx_reorder_entry(priv, tbl);
+			spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags);
+		}
+	}
+	spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);
+
+	return;
+}
+
 /*
  * This function finds the last sequence number used in the packets
  * buffered in Rx reordering table.
@@ -226,6 +260,7 @@ mwifiex_11n_create_rx_reorder_tbl(struct mwifiex_private *priv, u8 *ta,
 	struct mwifiex_rx_reorder_tbl *tbl, *new_node;
 	u16 last_seq = 0;
 	unsigned long flags;
+	struct mwifiex_sta_node *node;
 
 	/*
 	 * If we get a TID, ta pair which is already present dispatch all the
@@ -248,19 +283,26 @@ mwifiex_11n_create_rx_reorder_tbl(struct mwifiex_private *priv, u8 *ta,
 	new_node->tid = tid;
 	memcpy(new_node->ta, ta, ETH_ALEN);
 	new_node->start_win = seq_num;
-	if (mwifiex_queuing_ra_based(priv))
-		/* TODO for adhoc */
+
+	if (mwifiex_queuing_ra_based(priv)) {
 		dev_dbg(priv->adapter->dev,
-			"info: ADHOC:last_seq=%d start_win=%d\n",
+			"info: AP/ADHOC:last_seq=%d start_win=%d\n",
 			last_seq, new_node->start_win);
-	else
+		if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) {
+			node = mwifiex_get_sta_entry(priv, ta);
+			if (node)
+				last_seq = node->rx_seq[tid];
+		}
+	} else {
 		last_seq = priv->rx_seq[tid];
+	}
 
 	if (last_seq != MWIFIEX_DEF_11N_RX_SEQ_NUM &&
 	    last_seq >= new_node->start_win)
 		new_node->start_win = last_seq + 1;
 
 	new_node->win_size = win_size;
+	new_node->flags = 0;
 
 	new_node->rx_reorder_ptr = kzalloc(sizeof(void *) * win_size,
 					GFP_KERNEL);
@@ -396,8 +438,13 @@ int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv,
 
 	tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, ta);
 	if (!tbl) {
-		if (pkt_type != PKT_TYPE_BAR)
-			mwifiex_process_rx_packet(priv->adapter, payload);
+		if (pkt_type != PKT_TYPE_BAR) {
+			if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+				mwifiex_handle_uap_rx_forward(priv, payload);
+			else
+				mwifiex_process_rx_packet(priv->adapter,
+							  payload);
+		}
 		return 0;
 	}
 	start_win = tbl->start_win;
@@ -411,13 +458,20 @@ int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv,
 	 * If seq_num is less then starting win then ignore and drop the
 	 * packet
 	 */
-	if ((start_win + TWOPOW11) > (MAX_TID_VALUE - 1)) {/* Wrap */
-		if (seq_num >= ((start_win + TWOPOW11) &
-				(MAX_TID_VALUE - 1)) && (seq_num < start_win))
+	if (tbl->flags & RXREOR_FORCE_NO_DROP) {
+		dev_dbg(priv->adapter->dev,
+			"RXREOR_FORCE_NO_DROP when HS is activated\n");
+		tbl->flags &= ~RXREOR_FORCE_NO_DROP;
+	} else {
+		if ((start_win + TWOPOW11) > (MAX_TID_VALUE - 1)) {
+			if (seq_num >= ((start_win + TWOPOW11) &
+					(MAX_TID_VALUE - 1)) &&
+			    seq_num < start_win)
+				return -1;
+		} else if ((seq_num < start_win) ||
+			   (seq_num > (start_win + TWOPOW11))) {
 			return -1;
-	} else if ((seq_num < start_win) ||
-		   (seq_num > (start_win + TWOPOW11))) {
-		return -1;
+		}
 	}
 
 	/*
@@ -428,8 +482,7 @@ int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv,
 		seq_num = ((seq_num + win_size) - 1) & (MAX_TID_VALUE - 1);
 
 	if (((end_win < start_win) &&
-	     (seq_num < (TWOPOW11 - (MAX_TID_VALUE - start_win))) &&
-	     (seq_num > end_win)) ||
+	     (seq_num < start_win) && (seq_num > end_win)) ||
 	    ((end_win > start_win) && ((seq_num > end_win) ||
 				       (seq_num < start_win)))) {
 		end_win = seq_num;
@@ -591,3 +644,29 @@ void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv)
 	INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr);
 	mwifiex_reset_11n_rx_seq_num(priv);
 }
+
+/*
+ * This function updates all rx_reorder_tbl's flags.
+ */
+void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags)
+{
+	struct mwifiex_private *priv;
+	struct mwifiex_rx_reorder_tbl *tbl;
+	unsigned long lock_flags;
+	int i;
+
+	for (i = 0; i < adapter->priv_num; i++) {
+		priv = adapter->priv[i];
+		if (!priv)
+			continue;
+		if (list_empty(&priv->rx_reorder_tbl_ptr))
+			continue;
+
+		spin_lock_irqsave(&priv->rx_reorder_tbl_lock, lock_flags);
+		list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list)
+			tbl->flags = flags;
+		spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, lock_flags);
+	}
+
+	return;
+}
diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.h b/drivers/net/wireless/mwifiex/11n_rxreorder.h
index 6c9815a0f5d..4064041ac85 100644
--- a/drivers/net/wireless/mwifiex/11n_rxreorder.h
+++ b/drivers/net/wireless/mwifiex/11n_rxreorder.h
@@ -38,6 +38,12 @@
 #define ADDBA_RSP_STATUS_ACCEPT 0
 
 #define MWIFIEX_DEF_11N_RX_SEQ_NUM	0xffff
+#define BA_SETUP_MAX_PACKET_THRESHOLD	16
+#define BA_SETUP_PACKET_OFFSET		16
+
+enum mwifiex_rxreor_flags {
+	RXREOR_FORCE_NO_DROP	= 1<<0,
+};
 
 static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv)
 {
@@ -68,5 +74,9 @@ struct mwifiex_rx_reorder_tbl *mwifiex_11n_get_rxreorder_tbl(struct
 							   mwifiex_private
 							   *priv, int tid,
 							   u8 *ta);
+struct mwifiex_rx_reorder_tbl *
+mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta);
+void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta);
+void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags);
 
 #endif /* _MWIFIEX_11N_RXREORDER_H_ */
diff --git a/drivers/net/wireless/mwifiex/Makefile b/drivers/net/wireless/mwifiex/Makefile
index 3f66ebb0a63..dd0410d2d46 100644
--- a/drivers/net/wireless/mwifiex/Makefile
+++ b/drivers/net/wireless/mwifiex/Makefile
@@ -33,8 +33,10 @@ mwifiex-y += uap_cmd.o
 mwifiex-y += ie.o
 mwifiex-y += sta_cmdresp.o
 mwifiex-y += sta_event.o
+mwifiex-y += uap_event.o
 mwifiex-y += sta_tx.o
 mwifiex-y += sta_rx.o
+mwifiex-y += uap_txrx.o
 mwifiex-y += cfg80211.o
 mwifiex-$(CONFIG_DEBUG_FS) += debugfs.o
 obj-$(CONFIG_MWIFIEX) += mwifiex.o
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index fe42137384d..2691620393e 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -22,7 +22,7 @@
 
 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
 	{
-		.max = 1, .types = BIT(NL80211_IFTYPE_STATION),
+		.max = 2, .types = BIT(NL80211_IFTYPE_STATION),
 	},
 	{
 		.max = 1, .types = BIT(NL80211_IFTYPE_AP),
@@ -37,6 +37,36 @@ static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
 	.beacon_int_infra_match = true,
 };
 
+static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
+	.n_reg_rules = 7,
+	.alpha2 =  "99",
+	.reg_rules = {
+		/* Channel 1 - 11 */
+		REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
+		/* Channel 12 - 13 */
+		REG_RULE(2467-10, 2472+10, 20, 3, 20,
+			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
+		/* Channel 14 */
+		REG_RULE(2484-10, 2484+10, 20, 3, 20,
+			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
+			 NL80211_RRF_NO_OFDM),
+		/* Channel 36 - 48 */
+		REG_RULE(5180-10, 5240+10, 40, 3, 20,
+			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
+		/* Channel 149 - 165 */
+		REG_RULE(5745-10, 5825+10, 40, 3, 20,
+			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
+		/* Channel 52 - 64 */
+		REG_RULE(5260-10, 5320+10, 40, 3, 30,
+			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
+			 NL80211_RRF_DFS),
+		/* Channel 100 - 140 */
+		REG_RULE(5500-10, 5700+10, 40, 3, 30,
+			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
+			 NL80211_RRF_DFS),
+	}
+};
+
 /*
  * This function maps the nl802.11 channel type into driver channel type.
  *
@@ -47,8 +77,7 @@ static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  */
-static u8
-mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
+u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
 {
 	switch (chan_type) {
 	case NL80211_CHAN_NO_HT:
@@ -99,7 +128,7 @@ mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 	const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 
-	if (mwifiex_set_encode(priv, NULL, 0, key_index, peer_mac, 1)) {
+	if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 		wiphy_err(wiphy, "deleting the crypto keys\n");
 		return -EFAULT;
 	}
@@ -109,6 +138,188 @@ mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 }
 
 /*
+ * This function forms an skb for management frame.
+ */
+static int
+mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
+{
+	u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+	u16 pkt_len;
+	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
+	struct timeval tv;
+
+	pkt_len = len + ETH_ALEN;
+
+	skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
+		    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
+	memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
+
+	memcpy(skb_push(skb, sizeof(tx_control)),
+	       &tx_control, sizeof(tx_control));
+
+	memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
+
+	/* Add packet data and address4 */
+	memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
+	       sizeof(struct ieee80211_hdr_3addr));
+	memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
+	memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
+	       buf + sizeof(struct ieee80211_hdr_3addr),
+	       len - sizeof(struct ieee80211_hdr_3addr));
+
+	skb->priority = LOW_PRIO_TID;
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
+
+	return 0;
+}
+
+/*
+ * CFG802.11 operation handler to transmit a management frame.
+ */
+static int
+mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
+			 struct ieee80211_channel *chan, bool offchan,
+			 enum nl80211_channel_type channel_type,
+			 bool channel_type_valid, unsigned int wait,
+			 const u8 *buf, size_t len, bool no_cck,
+			 bool dont_wait_for_ack, u64 *cookie)
+{
+	struct sk_buff *skb;
+	u16 pkt_len;
+	const struct ieee80211_mgmt *mgmt;
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
+
+	if (!buf || !len) {
+		wiphy_err(wiphy, "invalid buffer and length\n");
+		return -EFAULT;
+	}
+
+	mgmt = (const struct ieee80211_mgmt *)buf;
+	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
+	    ieee80211_is_probe_resp(mgmt->frame_control)) {
+		/* Since we support offload probe resp, we need to skip probe
+		 * resp in AP or GO mode */
+		wiphy_dbg(wiphy,
+			  "info: skip to send probe resp in AP or GO mode\n");
+		return 0;
+	}
+
+	pkt_len = len + ETH_ALEN;
+	skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
+			    MWIFIEX_MGMT_FRAME_HEADER_SIZE +
+			    pkt_len + sizeof(pkt_len));
+
+	if (!skb) {
+		wiphy_err(wiphy, "allocate skb failed for management frame\n");
+		return -ENOMEM;
+	}
+
+	mwifiex_form_mgmt_frame(skb, buf, len);
+	mwifiex_queue_tx_pkt(priv, skb);
+
+	*cookie = random32() | 1;
+	cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
+
+	wiphy_dbg(wiphy, "info: management frame transmitted\n");
+	return 0;
+}
+
+/*
+ * CFG802.11 operation handler to register a mgmt frame.
+ */
+static void
+mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
+				     struct wireless_dev *wdev,
+				     u16 frame_type, bool reg)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
+
+	if (reg)
+		priv->mgmt_frame_mask |= BIT(frame_type >> 4);
+	else
+		priv->mgmt_frame_mask &= ~BIT(frame_type >> 4);
+
+	mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
+			       HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask);
+
+	wiphy_dbg(wiphy, "info: mgmt frame registered\n");
+}
+
+/*
+ * CFG802.11 operation handler to remain on channel.
+ */
+static int
+mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
+				   struct wireless_dev *wdev,
+				   struct ieee80211_channel *chan,
+				   enum nl80211_channel_type channel_type,
+				   unsigned int duration, u64 *cookie)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
+	int ret;
+
+	if (!chan || !cookie) {
+		wiphy_err(wiphy, "Invalid parameter for ROC\n");
+		return -EINVAL;
+	}
+
+	if (priv->roc_cfg.cookie) {
+		wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
+			  priv->roc_cfg.cookie);
+		return -EBUSY;
+	}
+
+	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
+					 &channel_type, duration);
+
+	if (!ret) {
+		*cookie = random32() | 1;
+		priv->roc_cfg.cookie = *cookie;
+		priv->roc_cfg.chan = *chan;
+		priv->roc_cfg.chan_type = channel_type;
+
+		cfg80211_ready_on_channel(wdev, *cookie, chan, channel_type,
+					  duration, GFP_ATOMIC);
+
+		wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
+	}
+
+	return ret;
+}
+
+/*
+ * CFG802.11 operation handler to cancel remain on channel.
+ */
+static int
+mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
+					  struct wireless_dev *wdev, u64 cookie)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
+	int ret;
+
+	if (cookie != priv->roc_cfg.cookie)
+		return -ENOENT;
+
+	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
+					 &priv->roc_cfg.chan,
+					 &priv->roc_cfg.chan_type, 0);
+
+	if (!ret) {
+		cfg80211_remain_on_channel_expired(wdev, cookie,
+						   &priv->roc_cfg.chan,
+						   priv->roc_cfg.chan_type,
+						   GFP_ATOMIC);
+
+		memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
+
+		wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
+	}
+
+	return ret;
+}
+
+/*
  * CFG802.11 operation handler to set Tx power.
  */
 static int
@@ -171,7 +382,8 @@ mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 
 	if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 		priv->wep_key_curr_index = key_index;
-	} else if (mwifiex_set_encode(priv, NULL, 0, key_index, NULL, 0)) {
+	} else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
+				      NULL, 0)) {
 		wiphy_err(wiphy, "set default Tx key index\n");
 		return -EFAULT;
 	}
@@ -207,7 +419,7 @@ mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 		return 0;
 	}
 
-	if (mwifiex_set_encode(priv, params->key, params->key_len,
+	if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 			       key_index, peer_mac, 0)) {
 		wiphy_err(wiphy, "crypto keys added\n");
 		return -EFAULT;
@@ -462,6 +674,76 @@ mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 	return 0;
 }
 
+static int
+mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
+{
+	u16 mode = P2P_MODE_DISABLE;
+
+	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
+		mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
+
+	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
+				  HostCmd_ACT_GEN_SET, 0, &mode))
+		return -1;
+
+	return 0;
+}
+
+/*
+ * This function initializes the functionalities for P2P client.
+ * The P2P client initialization sequence is:
+ * disable -> device -> client
+ */
+static int
+mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
+{
+	u16 mode;
+
+	if (mwifiex_cfg80211_deinit_p2p(priv))
+		return -1;
+
+	mode = P2P_MODE_DEVICE;
+	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
+				  HostCmd_ACT_GEN_SET, 0, &mode))
+		return -1;
+
+	mode = P2P_MODE_CLIENT;
+	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
+				  HostCmd_ACT_GEN_SET, 0, &mode))
+		return -1;
+
+	return 0;
+}
+
+/*
+ * This function initializes the functionalities for P2P GO.
+ * The P2P GO initialization sequence is:
+ * disable -> device -> GO
+ */
+static int
+mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
+{
+	u16 mode;
+
+	if (mwifiex_cfg80211_deinit_p2p(priv))
+		return -1;
+
+	mode = P2P_MODE_DEVICE;
+	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
+				  HostCmd_ACT_GEN_SET, 0, &mode))
+		return -1;
+
+	mode = P2P_MODE_GO;
+	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
+				  HostCmd_ACT_GEN_SET, 0, &mode))
+		return -1;
+
+	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
+		mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
+
+	return 0;
+}
+
 /*
  * CFG802.11 operation handler to change interface type.
  */
@@ -494,6 +776,16 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 		switch (type) {
 		case NL80211_IFTYPE_ADHOC:
 			break;
+		case NL80211_IFTYPE_P2P_CLIENT:
+			if (mwifiex_cfg80211_init_p2p_client(priv))
+				return -EFAULT;
+			dev->ieee80211_ptr->iftype = type;
+			return 0;
+		case NL80211_IFTYPE_P2P_GO:
+			if (mwifiex_cfg80211_init_p2p_go(priv))
+				return -EFAULT;
+			dev->ieee80211_ptr->iftype = type;
+			return 0;
 		case NL80211_IFTYPE_UNSPECIFIED:
 			wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 		case NL80211_IFTYPE_STATION:	/* This shouldn't happen */
@@ -519,6 +811,18 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 			return -EOPNOTSUPP;
 		}
 		break;
+	case NL80211_IFTYPE_P2P_CLIENT:
+	case NL80211_IFTYPE_P2P_GO:
+		switch (type) {
+		case NL80211_IFTYPE_STATION:
+			if (mwifiex_cfg80211_deinit_p2p(priv))
+				return -EFAULT;
+			dev->ieee80211_ptr->iftype = type;
+			return 0;
+		default:
+			return -EOPNOTSUPP;
+		}
+		break;
 	default:
 		wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 			  dev->name, dev->ieee80211_ptr->iftype);
@@ -657,7 +961,6 @@ mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 }
 
 /* Supported rates to be advertised to the cfg80211 */
-
 static struct ieee80211_rate mwifiex_rates[] = {
 	{.bitrate = 10, .hw_value = 2, },
 	{.bitrate = 20, .hw_value = 4, },
@@ -674,7 +977,6 @@ static struct ieee80211_rate mwifiex_rates[] = {
 };
 
 /* Channel definitions to be advertised to cfg80211 */
-
 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
 	{.center_freq = 2412, .hw_value = 1, },
 	{.center_freq = 2417, .hw_value = 2, },
@@ -742,12 +1044,41 @@ static struct ieee80211_supported_band mwifiex_band_5ghz = {
 
 
 /* Supported crypto cipher suits to be advertised to cfg80211 */
-
 static const u32 mwifiex_cipher_suites[] = {
 	WLAN_CIPHER_SUITE_WEP40,
 	WLAN_CIPHER_SUITE_WEP104,
 	WLAN_CIPHER_SUITE_TKIP,
 	WLAN_CIPHER_SUITE_CCMP,
+	WLAN_CIPHER_SUITE_AES_CMAC,
+};
+
+/* Supported mgmt frame types to be advertised to cfg80211 */
+static const struct ieee80211_txrx_stypes
+mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
+	[NL80211_IFTYPE_STATION] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+	},
+	[NL80211_IFTYPE_AP] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+	},
+	[NL80211_IFTYPE_P2P_CLIENT] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+	},
+	[NL80211_IFTYPE_P2P_GO] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+	},
 };
 
 /*
@@ -842,7 +1173,7 @@ static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
 {
 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 
-	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
+	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
 		wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
 		return -EINVAL;
 	}
@@ -906,6 +1237,8 @@ static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	if (mwifiex_del_mgmt_ies(priv))
 		wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
 
+	priv->ap_11n_enabled = 0;
+
 	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
 				  HostCmd_ACT_GEN_SET, 0, NULL)) {
 		wiphy_err(wiphy, "Failed to stop the BSS\n");
@@ -928,7 +1261,7 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 	u8 config_bands = 0;
 
-	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP)
+	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 		return -1;
 	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
 		return -1;
@@ -965,15 +1298,18 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 
 	bss_cfg->channel =
 	    (u8)ieee80211_frequency_to_channel(params->channel->center_freq);
-	bss_cfg->band_cfg = BAND_CONFIG_MANUAL;
 
 	/* Set appropriate bands */
 	if (params->channel->band == IEEE80211_BAND_2GHZ) {
+		bss_cfg->band_cfg = BAND_CONFIG_BG;
+
 		if (params->channel_type == NL80211_CHAN_NO_HT)
 			config_bands = BAND_B | BAND_G;
 		else
 			config_bands = BAND_B | BAND_G | BAND_GN;
 	} else {
+		bss_cfg->band_cfg = BAND_CONFIG_A;
+
 		if (params->channel_type == NL80211_CHAN_NO_HT)
 			config_bands = BAND_A;
 		else
@@ -984,6 +1320,7 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 	      ~priv->adapter->fw_bands))
 		priv->adapter->config_bands = config_bands;
 
+	mwifiex_set_uap_rates(bss_cfg, params);
 	mwifiex_send_domain_info_cmd_fw(wiphy);
 
 	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
@@ -994,6 +1331,12 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 
 	mwifiex_set_ht_params(priv, bss_cfg, params);
 
+	if (params->inactivity_timeout > 0) {
+		/* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
+		bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
+		bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
+	}
+
 	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
 				  HostCmd_ACT_GEN_SET, 0, NULL)) {
 		wiphy_err(wiphy, "Failed to stop the BSS\n");
@@ -1149,7 +1492,6 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 			      ~priv->adapter->fw_bands))
 				priv->adapter->config_bands = config_bands;
 		}
-		mwifiex_send_domain_info_cmd_fw(priv->wdev->wiphy);
 	}
 
 	/* As this is new association, clear locally stored
@@ -1159,7 +1501,7 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 	priv->wep_key_curr_index = 0;
 	priv->sec_info.encryption_mode = 0;
 	priv->sec_info.is_authtype_auto = 0;
-	ret = mwifiex_set_encode(priv, NULL, 0, 0, NULL, 1);
+	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
 
 	if (mode == NL80211_IFTYPE_ADHOC) {
 		/* "privacy" is set only for ad-hoc mode */
@@ -1206,8 +1548,9 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 				"info: setting wep encryption"
 				" with key len %d\n", sme->key_len);
 			priv->wep_key_curr_index = sme->key_idx;
-			ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
-						 sme->key_idx, NULL, 0);
+			ret = mwifiex_set_encode(priv, NULL, sme->key,
+						 sme->key_len, sme->key_idx,
+						 NULL, 0);
 		}
 	}
 done:
@@ -1459,11 +1802,18 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 {
 	struct net_device *dev = request->wdev->netdev;
 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
-	int i;
+	int i, offset;
 	struct ieee80211_channel *chan;
+	struct ieee_types_header *ie;
 
 	wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
 
+	if (atomic_read(&priv->wmm.tx_pkts_queued) >=
+	    MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
+		dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
+		return -EBUSY;
+	}
+
 	priv->scan_request = request;
 
 	priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
@@ -1477,13 +1827,17 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 	priv->user_scan_cfg->ssid_list = request->ssids;
 
 	if (request->ie && request->ie_len) {
+		offset = 0;
 		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
 			if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
 				continue;
 			priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
-			memcpy(&priv->vs_ie[i].ie, request->ie,
-			       request->ie_len);
-			break;
+			ie = (struct ieee_types_header *)(request->ie + offset);
+			memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
+			offset += sizeof(*ie) + ie->len;
+
+			if (offset >= request->ie_len)
+				break;
 		}
 	}
 
@@ -1592,7 +1946,7 @@ mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
  *  create a new virtual interface with the given name
  */
 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
-					      char *name,
+					      const char *name,
 					      enum nl80211_iftype type,
 					      u32 *flags,
 					      struct vif_params *params)
@@ -1632,7 +1986,7 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
 
 		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
-		priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
+		priv->bss_priority = 0;
 		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 		priv->bss_num = 0;
 
@@ -1655,13 +2009,48 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
 
 		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
-		priv->bss_priority = MWIFIEX_BSS_ROLE_UAP;
+		priv->bss_priority = 0;
 		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 		priv->bss_started = 0;
 		priv->bss_num = 0;
 		priv->bss_mode = type;
 
 		break;
+	case NL80211_IFTYPE_P2P_CLIENT:
+		priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
+
+		if (priv->bss_mode) {
+			wiphy_err(wiphy, "Can't create multiple P2P ifaces");
+			return ERR_PTR(-EINVAL);
+		}
+
+		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
+		if (!wdev)
+			return ERR_PTR(-ENOMEM);
+
+		priv->wdev = wdev;
+		wdev->wiphy = wiphy;
+
+		/* At start-up, wpa_supplicant tries to change the interface
+		 * to NL80211_IFTYPE_STATION if it is not managed mode.
+		 * So, we initialize it to STA mode.
+		 */
+		wdev->iftype = NL80211_IFTYPE_STATION;
+		priv->bss_mode = NL80211_IFTYPE_STATION;
+
+		/* Setting bss_type to P2P tells firmware that this interface
+		 * is receiving P2P peers found during find phase and doing
+		 * action frame handshake.
+		 */
+		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
+
+		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
+		priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
+		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
+		priv->bss_started = 0;
+		priv->bss_num = 0;
+
+		break;
 	default:
 		wiphy_err(wiphy, "type not supported\n");
 		return ERR_PTR(-EINVAL);
@@ -1769,6 +2158,10 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
 	.leave_ibss = mwifiex_cfg80211_leave_ibss,
 	.add_key = mwifiex_cfg80211_add_key,
 	.del_key = mwifiex_cfg80211_del_key,
+	.mgmt_tx = mwifiex_cfg80211_mgmt_tx,
+	.mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
+	.remain_on_channel = mwifiex_cfg80211_remain_on_channel,
+	.cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
 	.set_default_key = mwifiex_cfg80211_set_default_key,
 	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
 	.set_tx_power = mwifiex_cfg80211_set_tx_power,
@@ -1805,8 +2198,12 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 	}
 	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
 	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
+	wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
+	wiphy->max_remain_on_channel_duration = 5000;
 	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 				 BIT(NL80211_IFTYPE_ADHOC) |
+				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
+				 BIT(NL80211_IFTYPE_P2P_GO) |
 				 BIT(NL80211_IFTYPE_AP);
 
 	wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
@@ -1825,15 +2222,21 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 	memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
 	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
 	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
-			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
+			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
+			WIPHY_FLAG_CUSTOM_REGULATORY |
+			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+
+	wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
 
 	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
-				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
+				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
+				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
 
 	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
 	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
 
-	wiphy->features = NL80211_FEATURE_HT_IBSS;
+	wiphy->features = NL80211_FEATURE_HT_IBSS |
+			  NL80211_FEATURE_INACTIVITY_TIMER;
 
 	/* Reserve space for mwifiex specific private data for BSS */
 	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
@@ -1854,8 +2257,9 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 		return ret;
 	}
 	country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
-	if (country_code && regulatory_hint(wiphy, country_code))
-		dev_err(adapter->dev, "regulatory_hint() failed\n");
+	if (country_code)
+		dev_info(adapter->dev,
+			 "ignoring F/W country code %2.2s\n", country_code);
 
 	adapter->wiphy = wiphy;
 	return ret;
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index c68adec3cc8..8d465107f52 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -170,7 +170,20 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
 	cmd_code = le16_to_cpu(host_cmd->command);
 	cmd_size = le16_to_cpu(host_cmd->size);
 
-	skb_trim(cmd_node->cmd_skb, cmd_size);
+	/* Adjust skb length */
+	if (cmd_node->cmd_skb->len > cmd_size)
+		/*
+		 * cmd_size is less than sizeof(struct host_cmd_ds_command).
+		 * Trim off the unused portion.
+		 */
+		skb_trim(cmd_node->cmd_skb, cmd_size);
+	else if (cmd_node->cmd_skb->len < cmd_size)
+		/*
+		 * cmd_size is larger than sizeof(struct host_cmd_ds_command)
+		 * because we have appended custom IE TLV. Increase skb length
+		 * accordingly.
+		 */
+		skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len);
 
 	do_gettimeofday(&tstamp);
 	dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
@@ -447,7 +460,10 @@ int mwifiex_process_event(struct mwifiex_adapter *adapter)
 			priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 	}
 
-	ret = mwifiex_process_sta_event(priv);
+	if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+		ret = mwifiex_process_uap_event(priv);
+	else
+		ret = mwifiex_process_sta_event(priv);
 
 	adapter->event_cause = 0;
 	adapter->event_skb = NULL;
@@ -1072,6 +1088,8 @@ mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated)
 	if (activated) {
 		if (priv->adapter->is_hs_configured) {
 			priv->adapter->hs_activated = true;
+			mwifiex_update_rxreor_flags(priv->adapter,
+						    RXREOR_FORCE_NO_DROP);
 			dev_dbg(priv->adapter->dev, "event: hs_activated\n");
 			priv->adapter->hs_activate_wait_q_woken = true;
 			wake_up_interruptible(
diff --git a/drivers/net/wireless/mwifiex/decl.h b/drivers/net/wireless/mwifiex/decl.h
index 070ef25f518..e9357d87d32 100644
--- a/drivers/net/wireless/mwifiex/decl.h
+++ b/drivers/net/wireless/mwifiex/decl.h
@@ -28,11 +28,14 @@
 #include <linux/ieee80211.h>
 
 
-#define MWIFIEX_MAX_BSS_NUM         (2)
+#define MWIFIEX_MAX_BSS_NUM         (3)
 
 #define MWIFIEX_MIN_DATA_HEADER_LEN 36	/* sizeof(mwifiex_txpd)
 					 *   + 4 byte alignment
 					 */
+#define MWIFIEX_MGMT_FRAME_HEADER_SIZE	8	/* sizeof(pkt_type)
+						 *   + sizeof(tx_control)
+						 */
 
 #define MWIFIEX_MAX_TX_BASTREAM_SUPPORTED	2
 #define MWIFIEX_MAX_RX_BASTREAM_SUPPORTED	16
@@ -60,10 +63,14 @@
 #define MWIFIEX_SDIO_BLOCK_SIZE            256
 
 #define MWIFIEX_BUF_FLAG_REQUEUED_PKT      BIT(0)
+#define MWIFIEX_BUF_FLAG_BRIDGED_PKT	   BIT(1)
+
+#define MWIFIEX_BRIDGED_PKTS_THRESHOLD     1024
 
 enum mwifiex_bss_type {
 	MWIFIEX_BSS_TYPE_STA = 0,
 	MWIFIEX_BSS_TYPE_UAP = 1,
+	MWIFIEX_BSS_TYPE_P2P = 2,
 	MWIFIEX_BSS_TYPE_ANY = 0xff,
 };
 
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index e831b440a24..dda588b3557 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -65,10 +65,12 @@ enum KEY_TYPE_ID {
 	KEY_TYPE_ID_TKIP,
 	KEY_TYPE_ID_AES,
 	KEY_TYPE_ID_WAPI,
+	KEY_TYPE_ID_AES_CMAC,
 };
 #define KEY_MCAST	BIT(0)
 #define KEY_UNICAST	BIT(1)
 #define KEY_ENABLED	BIT(2)
+#define KEY_IGTK	BIT(10)
 
 #define WAPI_KEY_LEN			50
 
@@ -92,6 +94,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 };
 
 #define CAL_SNR(RSSI, NF)		((s16)((s16)(RSSI)-(s16)(NF)))
+#define CAL_RSSI(SNR, NF)		((s16)((s16)(SNR)+(s16)(NF)))
 
 #define UAP_BSS_PARAMS_I			0
 #define UAP_CUSTOM_IE_I				1
@@ -106,6 +109,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define MGMT_MASK_BEACON			0x100
 
 #define TLV_TYPE_UAP_SSID			0x0000
+#define TLV_TYPE_UAP_RATES			0x0001
 
 #define PROPRIETARY_TLV_BASE_ID                 0x0100
 #define TLV_TYPE_KEY_MATERIAL       (PROPRIETARY_TLV_BASE_ID + 0)
@@ -124,6 +128,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define TLV_TYPE_UAP_DTIM_PERIOD    (PROPRIETARY_TLV_BASE_ID + 45)
 #define TLV_TYPE_UAP_BCAST_SSID     (PROPRIETARY_TLV_BASE_ID + 48)
 #define TLV_TYPE_UAP_RTS_THRESHOLD  (PROPRIETARY_TLV_BASE_ID + 51)
+#define TLV_TYPE_UAP_AO_TIMER       (PROPRIETARY_TLV_BASE_ID + 57)
 #define TLV_TYPE_UAP_WEP_KEY        (PROPRIETARY_TLV_BASE_ID + 59)
 #define TLV_TYPE_UAP_WPA_PASSPHRASE (PROPRIETARY_TLV_BASE_ID + 60)
 #define TLV_TYPE_UAP_ENCRY_PROTOCOL (PROPRIETARY_TLV_BASE_ID + 64)
@@ -138,6 +143,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define TLV_TYPE_MGMT_IE            (PROPRIETARY_TLV_BASE_ID + 105)
 #define TLV_TYPE_AUTO_DS_PARAM      (PROPRIETARY_TLV_BASE_ID + 113)
 #define TLV_TYPE_PS_PARAM           (PROPRIETARY_TLV_BASE_ID + 114)
+#define TLV_TYPE_UAP_PS_AO_TIMER    (PROPRIETARY_TLV_BASE_ID + 123)
 #define TLV_TYPE_PWK_CIPHER         (PROPRIETARY_TLV_BASE_ID + 145)
 #define TLV_TYPE_GWK_CIPHER         (PROPRIETARY_TLV_BASE_ID + 146)
 
@@ -257,9 +263,12 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define HostCmd_CMD_TX_RATE_CFG                       0x00d6
 #define HostCmd_CMD_802_11_PS_MODE_ENH                0x00e4
 #define HostCmd_CMD_802_11_HS_CFG_ENH                 0x00e5
+#define HostCmd_CMD_P2P_MODE_CFG                      0x00eb
 #define HostCmd_CMD_CAU_REG_ACCESS                    0x00ed
 #define HostCmd_CMD_SET_BSS_MODE                      0x00f7
 #define HostCmd_CMD_PCIE_DESC_DETAILS                 0x00fa
+#define HostCmd_CMD_MGMT_FRAME_REG                    0x010c
+#define HostCmd_CMD_REMAIN_ON_CHAN                    0x010d
 
 #define PROTOCOL_NO_SECURITY        0x01
 #define PROTOCOL_STATIC_WEP         0x02
@@ -285,9 +294,17 @@ enum ENH_PS_MODES {
 	DIS_AUTO_PS = 0xfe,
 };
 
+enum P2P_MODES {
+	P2P_MODE_DISABLE = 0,
+	P2P_MODE_DEVICE = 1,
+	P2P_MODE_GO = 2,
+	P2P_MODE_CLIENT = 3,
+};
+
 #define HostCmd_RET_BIT                       0x8000
 #define HostCmd_ACT_GEN_GET                   0x0000
 #define HostCmd_ACT_GEN_SET                   0x0001
+#define HostCmd_ACT_GEN_REMOVE                0x0004
 #define HostCmd_ACT_BITWISE_SET               0x0002
 #define HostCmd_ACT_BITWISE_CLR               0x0003
 #define HostCmd_RESULT_OK                     0x0000
@@ -307,7 +324,7 @@ enum ENH_PS_MODES {
 #define HostCmd_SCAN_RADIO_TYPE_A           1
 
 #define HOST_SLEEP_CFG_CANCEL		0xffffffff
-#define HOST_SLEEP_CFG_COND_DEF		0x0000000f
+#define HOST_SLEEP_CFG_COND_DEF		0x00000000
 #define HOST_SLEEP_CFG_GPIO_DEF		0xff
 #define HOST_SLEEP_CFG_GAP_DEF		0
 
@@ -385,6 +402,7 @@ enum ENH_PS_MODES {
 #define EVENT_BW_CHANGE                 0x00000048
 #define EVENT_UAP_MIC_COUNTERMEASURES   0x0000004c
 #define EVENT_HOSTWAKE_STAIE		0x0000004d
+#define EVENT_REMAIN_ON_CHAN_EXPIRED    0x0000005f
 
 #define EVENT_ID_MASK                   0xffff
 #define BSS_NUM_MASK                    0xf
@@ -424,10 +442,10 @@ struct txpd {
 struct rxpd {
 	u8 bss_type;
 	u8 bss_num;
-	u16 rx_pkt_length;
-	u16 rx_pkt_offset;
-	u16 rx_pkt_type;
-	u16 seq_num;
+	__le16 rx_pkt_length;
+	__le16 rx_pkt_offset;
+	__le16 rx_pkt_type;
+	__le16 seq_num;
 	u8 priority;
 	u8 rx_rate;
 	s8 snr;
@@ -439,6 +457,31 @@ struct rxpd {
 	u8 reserved;
 } __packed;
 
+struct uap_txpd {
+	u8 bss_type;
+	u8 bss_num;
+	__le16 tx_pkt_length;
+	__le16 tx_pkt_offset;
+	__le16 tx_pkt_type;
+	__le32 tx_control;
+	u8 priority;
+	u8 flags;
+	u8 pkt_delay_2ms;
+	u8 reserved1;
+	__le32 reserved2;
+};
+
+struct uap_rxpd {
+	u8 bss_type;
+	u8 bss_num;
+	__le16 rx_pkt_length;
+	__le16 rx_pkt_offset;
+	__le16 rx_pkt_type;
+	__le16 seq_num;
+	u8 priority;
+	u8 reserved1;
+};
+
 enum mwifiex_chan_scan_mode_bitmasks {
 	MWIFIEX_PASSIVE_SCAN = BIT(0),
 	MWIFIEX_DISABLE_CHAN_FILT = BIT(1),
@@ -558,6 +601,13 @@ struct mwifiex_ie_type_key_param_set {
 	u8 key[50];
 } __packed;
 
+#define IGTK_PN_LEN		8
+
+struct mwifiex_cmac_param {
+	u8 ipn[IGTK_PN_LEN];
+	u8 key[WLAN_KEY_LEN_AES_CMAC];
+} __packed;
+
 struct host_cmd_ds_802_11_key_material {
 	__le16 action;
 	struct mwifiex_ie_type_key_param_set key_param_set;
@@ -1250,6 +1300,11 @@ struct host_cmd_tlv_ssid {
 	u8 ssid[0];
 } __packed;
 
+struct host_cmd_tlv_rates {
+	struct host_cmd_tlv tlv;
+	u8 rates[0];
+} __packed;
+
 struct host_cmd_tlv_bcast_ssid {
 	struct host_cmd_tlv tlv;
 	u8 bcast_ctl;
@@ -1291,11 +1346,35 @@ struct host_cmd_tlv_channel_band {
 	u8 channel;
 } __packed;
 
+struct host_cmd_tlv_ageout_timer {
+	struct host_cmd_tlv tlv;
+	__le32 sta_ao_timer;
+} __packed;
+
 struct host_cmd_ds_version_ext {
 	u8 version_str_sel;
 	char version_str[128];
 } __packed;
 
+struct host_cmd_ds_mgmt_frame_reg {
+	__le16 action;
+	__le32 mask;
+} __packed;
+
+struct host_cmd_ds_p2p_mode_cfg {
+	__le16 action;
+	__le16 mode;
+} __packed;
+
+struct host_cmd_ds_remain_on_chan {
+	__le16 action;
+	u8 status;
+	u8 reserved;
+	u8 band_cfg;
+	u8 channel;
+	__le32 duration;
+} __packed;
+
 struct host_cmd_ds_802_11_ibss_status {
 	__le16 action;
 	__le16 enable;
@@ -1307,6 +1386,7 @@ struct host_cmd_ds_802_11_ibss_status {
 
 #define CONNECTION_TYPE_INFRA   0
 #define CONNECTION_TYPE_ADHOC   1
+#define CONNECTION_TYPE_AP      2
 
 struct host_cmd_ds_set_bss_mode {
 	u8 con_type;
@@ -1404,6 +1484,9 @@ struct host_cmd_ds_command {
 		struct host_cmd_ds_wmm_get_status get_wmm_status;
 		struct host_cmd_ds_802_11_key_material key_material;
 		struct host_cmd_ds_version_ext verext;
+		struct host_cmd_ds_mgmt_frame_reg reg_mask;
+		struct host_cmd_ds_remain_on_chan roc_cfg;
+		struct host_cmd_ds_p2p_mode_cfg mode_cfg;
 		struct host_cmd_ds_802_11_ibss_status ibss_coalescing;
 		struct host_cmd_ds_mac_reg_access mac_reg;
 		struct host_cmd_ds_bbp_reg_access bbp_reg;
diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c
index 1d8dd003e39..e38342f86c5 100644
--- a/drivers/net/wireless/mwifiex/ie.c
+++ b/drivers/net/wireless/mwifiex/ie.c
@@ -114,9 +114,6 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
 							cpu_to_le16(mask);
 
 			ie->ie_index = cpu_to_le16(index);
-			ie->ie_length = priv->mgmt_ie[index].ie_length;
-			memcpy(&ie->ie_buffer, &priv->mgmt_ie[index].ie_buffer,
-			       le16_to_cpu(priv->mgmt_ie[index].ie_length));
 		} else {
 			if (mask != MWIFIEX_DELETE_MASK)
 				return -1;
@@ -160,7 +157,7 @@ mwifiex_update_uap_custom_ie(struct mwifiex_private *priv,
 	u16 len;
 	int ret;
 
-	ap_custom_ie = kzalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
+	ap_custom_ie = kzalloc(sizeof(*ap_custom_ie), GFP_KERNEL);
 	if (!ap_custom_ie)
 		return -ENOMEM;
 
@@ -214,30 +211,35 @@ mwifiex_update_uap_custom_ie(struct mwifiex_private *priv,
 	return ret;
 }
 
-/* This function checks if WPS IE is present in passed buffer and copies it to
- * mwifiex_ie structure.
+/* This function checks if the vendor specified IE is present in passed buffer
+ * and copies it to mwifiex_ie structure.
  * Function takes pointer to struct mwifiex_ie pointer as argument.
- * If WPS IE is present memory is allocated for mwifiex_ie pointer and filled
- * in with WPS IE. Caller should take care of freeing this memory.
+ * If the vendor specified IE is present then memory is allocated for
+ * mwifiex_ie pointer and filled in with IE. Caller should take care of freeing
+ * this memory.
  */
-static int mwifiex_update_wps_ie(const u8 *ies, int ies_len,
-				 struct mwifiex_ie **ie_ptr, u16 mask)
+static int mwifiex_update_vs_ie(const u8 *ies, int ies_len,
+				struct mwifiex_ie **ie_ptr, u16 mask,
+				unsigned int oui, u8 oui_type)
 {
-	struct ieee_types_header *wps_ie;
-	struct mwifiex_ie *ie = NULL;
+	struct ieee_types_header *vs_ie;
+	struct mwifiex_ie *ie = *ie_ptr;
 	const u8 *vendor_ie;
 
-	vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
-					    WLAN_OUI_TYPE_MICROSOFT_WPS,
-					    ies, ies_len);
+	vendor_ie = cfg80211_find_vendor_ie(oui, oui_type, ies, ies_len);
 	if (vendor_ie) {
-		ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
-		if (!ie)
-			return -ENOMEM;
+		if (!*ie_ptr) {
+			*ie_ptr = kzalloc(sizeof(struct mwifiex_ie),
+					  GFP_KERNEL);
+			if (!*ie_ptr)
+				return -ENOMEM;
+			ie = *ie_ptr;
+		}
 
-		wps_ie = (struct ieee_types_header *)vendor_ie;
-		memcpy(ie->ie_buffer, wps_ie, wps_ie->len + 2);
-		ie->ie_length = cpu_to_le16(wps_ie->len + 2);
+		vs_ie = (struct ieee_types_header *)vendor_ie;
+		memcpy(ie->ie_buffer + le16_to_cpu(ie->ie_length),
+		       vs_ie, vs_ie->len + 2);
+		le16_add_cpu(&ie->ie_length, vs_ie->len + 2);
 		ie->mgmt_subtype_mask = cpu_to_le16(mask);
 		ie->ie_index = cpu_to_le16(MWIFIEX_AUTO_IDX_MASK);
 	}
@@ -257,20 +259,40 @@ static int mwifiex_set_mgmt_beacon_data_ies(struct mwifiex_private *priv,
 	u16 ar_idx = MWIFIEX_AUTO_IDX_MASK;
 	int ret = 0;
 
-	if (data->beacon_ies && data->beacon_ies_len)
-		mwifiex_update_wps_ie(data->beacon_ies, data->beacon_ies_len,
-				      &beacon_ie, MGMT_MASK_BEACON);
+	if (data->beacon_ies && data->beacon_ies_len) {
+		mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len,
+				     &beacon_ie, MGMT_MASK_BEACON,
+				     WLAN_OUI_MICROSOFT,
+				     WLAN_OUI_TYPE_MICROSOFT_WPS);
+		mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len,
+				     &beacon_ie, MGMT_MASK_BEACON,
+				     WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P);
+	}
 
-	if (data->proberesp_ies && data->proberesp_ies_len)
-		mwifiex_update_wps_ie(data->proberesp_ies,
-				      data->proberesp_ies_len, &pr_ie,
-				      MGMT_MASK_PROBE_RESP);
+	if (data->proberesp_ies && data->proberesp_ies_len) {
+		mwifiex_update_vs_ie(data->proberesp_ies,
+				     data->proberesp_ies_len, &pr_ie,
+				     MGMT_MASK_PROBE_RESP, WLAN_OUI_MICROSOFT,
+				     WLAN_OUI_TYPE_MICROSOFT_WPS);
+		mwifiex_update_vs_ie(data->proberesp_ies,
+				     data->proberesp_ies_len, &pr_ie,
+				     MGMT_MASK_PROBE_RESP,
+				     WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P);
+	}
 
-	if (data->assocresp_ies && data->assocresp_ies_len)
-		mwifiex_update_wps_ie(data->assocresp_ies,
-				      data->assocresp_ies_len, &ar_ie,
-				      MGMT_MASK_ASSOC_RESP |
-				      MGMT_MASK_REASSOC_RESP);
+	if (data->assocresp_ies && data->assocresp_ies_len) {
+		mwifiex_update_vs_ie(data->assocresp_ies,
+				     data->assocresp_ies_len, &ar_ie,
+				     MGMT_MASK_ASSOC_RESP |
+				     MGMT_MASK_REASSOC_RESP,
+				     WLAN_OUI_MICROSOFT,
+				     WLAN_OUI_TYPE_MICROSOFT_WPS);
+		mwifiex_update_vs_ie(data->assocresp_ies,
+				     data->assocresp_ies_len, &ar_ie,
+				     MGMT_MASK_ASSOC_RESP |
+				     MGMT_MASK_REASSOC_RESP, WLAN_OUI_WFA,
+				     WLAN_OUI_TYPE_WFA_P2P);
+	}
 
 	if (beacon_ie || pr_ie || ar_ie) {
 		ret = mwifiex_update_uap_custom_ie(priv, beacon_ie,
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 21fdc6c0277..b5d37a8caa0 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -64,60 +64,77 @@ static void scan_delay_timer_fn(unsigned long data)
 	struct cmd_ctrl_node *cmd_node, *tmp_node;
 	unsigned long flags;
 
-	if (!mwifiex_wmm_lists_empty(adapter)) {
-		if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) {
+	if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) {
+		/*
+		 * Abort scan operation by cancelling all pending scan
+		 * commands
+		 */
+		spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
+		list_for_each_entry_safe(cmd_node, tmp_node,
+					 &adapter->scan_pending_q, list) {
+			list_del(&cmd_node->list);
+			mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+		}
+		spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
+
+		spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+		adapter->scan_processing = false;
+		adapter->scan_delay_cnt = 0;
+		adapter->empty_tx_q_cnt = 0;
+		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
+		if (priv->user_scan_cfg) {
+			dev_dbg(priv->adapter->dev,
+				"info: %s: scan aborted\n", __func__);
+			cfg80211_scan_done(priv->scan_request, 1);
+			priv->scan_request = NULL;
+			kfree(priv->user_scan_cfg);
+			priv->user_scan_cfg = NULL;
+		}
+
+		if (priv->scan_pending_on_block) {
+			priv->scan_pending_on_block = false;
+			up(&priv->async_sem);
+		}
+		goto done;
+	}
+
+	if (!atomic_read(&priv->adapter->is_tx_received)) {
+		adapter->empty_tx_q_cnt++;
+		if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) {
 			/*
-			 * Abort scan operation by cancelling all pending scan
-			 * command
+			 * No Tx traffic for 200msec. Get scan command from
+			 * scan pending queue and put to cmd pending queue to
+			 * resume scan operation
 			 */
+			adapter->scan_delay_cnt = 0;
+			adapter->empty_tx_q_cnt = 0;
 			spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
-			list_for_each_entry_safe(cmd_node, tmp_node,
-						 &adapter->scan_pending_q,
-						 list) {
-				list_del(&cmd_node->list);
-				cmd_node->wait_q_enabled = false;
-				mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
-			}
+			cmd_node = list_first_entry(&adapter->scan_pending_q,
+						    struct cmd_ctrl_node, list);
+			list_del(&cmd_node->list);
 			spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
 					       flags);
 
-			spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
-			adapter->scan_processing = false;
-			spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock,
-					       flags);
-
-			if (priv->user_scan_cfg) {
-				dev_dbg(priv->adapter->dev,
-					"info: %s: scan aborted\n", __func__);
-				cfg80211_scan_done(priv->scan_request, 1);
-				priv->scan_request = NULL;
-				kfree(priv->user_scan_cfg);
-				priv->user_scan_cfg = NULL;
-			}
-		} else {
-			/*
-			 * Tx data queue is still not empty, delay scan
-			 * operation further by 20msec.
-			 */
-			mod_timer(&priv->scan_delay_timer, jiffies +
-				  msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC));
-			adapter->scan_delay_cnt++;
+			mwifiex_insert_cmd_to_pending_q(adapter, cmd_node,
+							true);
+			queue_work(adapter->workqueue, &adapter->main_work);
+			goto done;
 		}
-		queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
 	} else {
-		/*
-		 * Tx data queue is empty. Get scan command from scan_pending_q
-		 * and put to cmd_pending_q to resume scan operation
-		 */
-		adapter->scan_delay_cnt = 0;
-		spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
-		cmd_node = list_first_entry(&adapter->scan_pending_q,
-					    struct cmd_ctrl_node, list);
-		list_del(&cmd_node->list);
-		spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
-
-		mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
+		adapter->empty_tx_q_cnt = 0;
 	}
+
+	/* Delay scan operation further by 20msec */
+	mod_timer(&priv->scan_delay_timer, jiffies +
+		  msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC));
+	adapter->scan_delay_cnt++;
+
+done:
+	if (atomic_read(&priv->adapter->is_tx_received))
+		atomic_set(&priv->adapter->is_tx_received, false);
+
+	return;
 }
 
 /*
@@ -127,7 +144,7 @@ static void scan_delay_timer_fn(unsigned long data)
  * Additionally, it also initializes all the locks and sets up all the
  * lists.
  */
-static int mwifiex_init_priv(struct mwifiex_private *priv)
+int mwifiex_init_priv(struct mwifiex_private *priv)
 {
 	u32 i;
 
@@ -196,6 +213,8 @@ static int mwifiex_init_priv(struct mwifiex_private *priv)
 	priv->curr_bcn_size = 0;
 	priv->wps_ie = NULL;
 	priv->wps_ie_len = 0;
+	priv->ap_11n_enabled = 0;
+	memset(&priv->roc_cfg, 0, sizeof(priv->roc_cfg));
 
 	priv->scan_block = false;
 
@@ -345,6 +364,7 @@ static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
 	memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter));
 	adapter->arp_filter_size = 0;
 	adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX;
+	adapter->empty_tx_q_cnt = 0;
 }
 
 /*
@@ -410,6 +430,7 @@ static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter)
 				list_del(&priv->wmm.tid_tbl_ptr[j].ra_list);
 			list_del(&priv->tx_ba_stream_tbl_ptr);
 			list_del(&priv->rx_reorder_tbl_ptr);
+			list_del(&priv->sta_list);
 		}
 	}
 }
@@ -472,6 +493,7 @@ int mwifiex_init_lock_list(struct mwifiex_adapter *adapter)
 			spin_lock_init(&priv->rx_pkt_lock);
 			spin_lock_init(&priv->wmm.ra_list_spinlock);
 			spin_lock_init(&priv->curr_bcn_buf_lock);
+			spin_lock_init(&priv->sta_list_spinlock);
 		}
 	}
 
@@ -504,6 +526,7 @@ int mwifiex_init_lock_list(struct mwifiex_adapter *adapter)
 		}
 		INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr);
 		INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr);
+		INIT_LIST_HEAD(&priv->sta_list);
 
 		spin_lock_init(&priv->tx_ba_stream_tbl_lock);
 		spin_lock_init(&priv->rx_reorder_tbl_lock);
@@ -626,6 +649,17 @@ static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv)
 }
 
 /*
+ * This function frees the private structure, including cleans
+ * up the TX and RX queues and frees the BSS priority tables.
+ */
+void mwifiex_free_priv(struct mwifiex_private *priv)
+{
+	mwifiex_clean_txrx(priv);
+	mwifiex_delete_bss_prio_tbl(priv);
+	mwifiex_free_curr_bcn(priv);
+}
+
+/*
  * This function is used to shutdown the driver.
  *
  * The following operations are performed sequentially -
diff --git a/drivers/net/wireless/mwifiex/ioctl.h b/drivers/net/wireless/mwifiex/ioctl.h
index 50191539bb3..4e31c6013eb 100644
--- a/drivers/net/wireless/mwifiex/ioctl.h
+++ b/drivers/net/wireless/mwifiex/ioctl.h
@@ -81,7 +81,11 @@ struct wep_key {
 
 #define KEY_MGMT_ON_HOST        0x03
 #define MWIFIEX_AUTH_MODE_AUTO  0xFF
-#define BAND_CONFIG_MANUAL      0x00
+#define BAND_CONFIG_BG          0x00
+#define BAND_CONFIG_A           0x01
+#define MWIFIEX_SUPPORTED_RATES                 14
+#define MWIFIEX_SUPPORTED_RATES_EXT             32
+
 struct mwifiex_uap_bss_param {
 	u8 channel;
 	u8 band_cfg;
@@ -100,6 +104,9 @@ struct mwifiex_uap_bss_param {
 	struct wpa_param wpa_cfg;
 	struct wep_key wep_cfg[NUM_WEP_KEYS];
 	struct ieee80211_ht_cap ht_cap;
+	u8 rates[MWIFIEX_SUPPORTED_RATES];
+	u32 sta_ao_timer;
+	u32 ps_sta_ao_timer;
 };
 
 enum {
@@ -213,7 +220,7 @@ struct mwifiex_debug_info {
 };
 
 #define MWIFIEX_KEY_INDEX_UNICAST	0x40000000
-#define WAPI_RXPN_LEN			16
+#define PN_LEN				16
 
 struct mwifiex_ds_encrypt_key {
 	u32 key_disable;
@@ -222,7 +229,8 @@ struct mwifiex_ds_encrypt_key {
 	u8 key_material[WLAN_MAX_KEY_LEN];
 	u8 mac_addr[ETH_ALEN];
 	u32 is_wapi_key;
-	u8 wapi_rxpn[WAPI_RXPN_LEN];
+	u8 pn[PN_LEN];		/* packet number */
+	u8 is_igtk_key;
 };
 
 struct mwifiex_power_cfg {
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 46803621d01..eb22dd248d5 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -72,7 +72,6 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
 			goto error;
 
 		adapter->priv[i]->adapter = adapter;
-		adapter->priv[i]->bss_priority = i;
 		adapter->priv_num++;
 	}
 	mwifiex_init_lock_list(adapter);
@@ -370,6 +369,13 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 		dev_err(adapter->dev, "cannot create default AP interface\n");
 		goto err_add_intf;
 	}
+
+	/* Create P2P interface by default */
+	if (!mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d",
+				      NL80211_IFTYPE_P2P_CLIENT, NULL, NULL)) {
+		dev_err(adapter->dev, "cannot create default P2P interface\n");
+		goto err_add_intf;
+	}
 	rtnl_unlock();
 
 	mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
@@ -470,6 +476,27 @@ mwifiex_close(struct net_device *dev)
 }
 
 /*
+ * Add buffer into wmm tx queue and queue work to transmit it.
+ */
+int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
+{
+	mwifiex_wmm_add_buf_txqueue(priv, skb);
+	atomic_inc(&priv->adapter->tx_pending);
+
+	if (priv->adapter->scan_delay_cnt)
+		atomic_set(&priv->adapter->is_tx_received, true);
+
+	if (atomic_read(&priv->adapter->tx_pending) >= MAX_TX_PENDING) {
+		mwifiex_set_trans_start(priv->netdev);
+		mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
+	}
+
+	queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
+
+	return 0;
+}
+
+/*
  * CFG802.11 network device handler for data transmission.
  */
 static int
@@ -517,15 +544,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	tx_info->bss_type = priv->bss_type;
 	mwifiex_fill_buffer(skb);
 
-	mwifiex_wmm_add_buf_txqueue(priv, skb);
-	atomic_inc(&priv->adapter->tx_pending);
-
-	if (atomic_read(&priv->adapter->tx_pending) >= MAX_TX_PENDING) {
-		mwifiex_set_trans_start(dev);
-		mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
-	}
-
-	queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
+	mwifiex_queue_tx_pkt(priv, skb);
 
 	return 0;
 }
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index e7c2a82fd61..bfb3fa69805 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -88,13 +88,18 @@ enum {
 #define MWIFIEX_MAX_TOTAL_SCAN_TIME	(MWIFIEX_TIMER_10S - MWIFIEX_TIMER_1S)
 
 #define MWIFIEX_MAX_SCAN_DELAY_CNT			50
+#define MWIFIEX_MAX_EMPTY_TX_Q_CNT			10
 #define MWIFIEX_SCAN_DELAY_MSEC				20
 
+#define MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN		2
+
 #define RSN_GTK_OUI_OFFSET				2
 
 #define MWIFIEX_OUI_NOT_PRESENT			0
 #define MWIFIEX_OUI_PRESENT				1
 
+#define PKT_TYPE_MGMT	0xE5
+
 /*
  * Do not check for data_received for USB, as data_received
  * is handled in mwifiex_usb_recv for USB
@@ -115,6 +120,7 @@ enum {
 #define MAX_BITMAP_RATES_SIZE			10
 
 #define MAX_CHANNEL_BAND_BG     14
+#define MAX_CHANNEL_BAND_A      165
 
 #define MAX_FREQUENCY_BAND_BG   2484
 
@@ -199,6 +205,9 @@ struct mwifiex_ra_list_tbl {
 	u8 ra[ETH_ALEN];
 	u32 total_pkts_size;
 	u32 is_11n_enabled;
+	u16 max_amsdu;
+	u16 pkt_count;
+	u8 ba_packet_thr;
 };
 
 struct mwifiex_tid_tbl {
@@ -245,10 +254,6 @@ struct ieee_types_header {
 	u8 len;
 } __packed;
 
-#define MWIFIEX_SUPPORTED_RATES                 14
-
-#define MWIFIEX_SUPPORTED_RATES_EXT             32
-
 struct ieee_types_vendor_specific {
 	struct ieee_types_vendor_header vend_hdr;
 	u8 data[IEEE_MAX_IE_SIZE - sizeof(struct ieee_types_vendor_header)];
@@ -365,6 +370,12 @@ struct wps {
 	u8 session_enable;
 };
 
+struct mwifiex_roc_cfg {
+	u64 cookie;
+	struct ieee80211_channel chan;
+	enum nl80211_channel_type chan_type;
+};
+
 struct mwifiex_adapter;
 struct mwifiex_private;
 
@@ -431,6 +442,9 @@ struct mwifiex_private {
 	u8 wmm_enabled;
 	u8 wmm_qosinfo;
 	struct mwifiex_wmm_desc wmm;
+	struct list_head sta_list;
+	/* spin lock for associated station list */
+	spinlock_t sta_list_spinlock;
 	struct list_head tx_ba_stream_tbl_ptr;
 	/* spin lock for tx_ba_stream_tbl_ptr queue */
 	spinlock_t tx_ba_stream_tbl_lock;
@@ -480,12 +494,16 @@ struct mwifiex_private {
 	s32 cqm_rssi_thold;
 	u32 cqm_rssi_hyst;
 	u8 subsc_evt_rssi_state;
+	struct mwifiex_ds_misc_subsc_evt async_subsc_evt_storage;
 	struct mwifiex_ie mgmt_ie[MAX_MGMT_IE_INDEX];
 	u16 beacon_idx;
 	u16 proberesp_idx;
 	u16 assocresp_idx;
 	u16 rsn_idx;
 	struct timer_list scan_delay_timer;
+	u8 ap_11n_enabled;
+	u32 mgmt_frame_mask;
+	struct mwifiex_roc_cfg roc_cfg;
 };
 
 enum mwifiex_ba_status {
@@ -517,6 +535,7 @@ struct mwifiex_rx_reorder_tbl {
 	int win_size;
 	void **rx_reorder_ptr;
 	struct reorder_tmr_cnxt timer_context;
+	u8 flags;
 };
 
 struct mwifiex_bss_prio_node {
@@ -550,6 +569,19 @@ struct mwifiex_bss_priv {
 	u64 fw_tsf;
 };
 
+/* This is AP specific structure which stores information
+ * about associated STA
+ */
+struct mwifiex_sta_node {
+	struct list_head list;
+	u8 mac_addr[ETH_ALEN];
+	u8 is_wmm_enabled;
+	u8 is_11n_enabled;
+	u8 ampdu_sta[MAX_NUM_TID];
+	u16 rx_seq[MAX_NUM_TID];
+	u16 max_amsdu;
+};
+
 struct mwifiex_if_ops {
 	int (*init_if) (struct mwifiex_adapter *);
 	void (*cleanup_if) (struct mwifiex_adapter *);
@@ -690,6 +722,9 @@ struct mwifiex_adapter {
 	u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
 	u16 max_mgmt_ie_index;
 	u8 scan_delay_cnt;
+	u8 empty_tx_q_cnt;
+	atomic_t is_tx_received;
+	atomic_t pending_bridged_pkts;
 };
 
 int mwifiex_init_lock_list(struct mwifiex_adapter *adapter);
@@ -702,6 +737,9 @@ void mwifiex_stop_net_dev_queue(struct net_device *netdev,
 void mwifiex_wake_up_net_dev_queue(struct net_device *netdev,
 		struct mwifiex_adapter *adapter);
 
+int mwifiex_init_priv(struct mwifiex_private *priv);
+void mwifiex_free_priv(struct mwifiex_private *priv);
+
 int mwifiex_init_fw(struct mwifiex_adapter *adapter);
 
 int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter);
@@ -714,6 +752,9 @@ int mwifiex_dnld_fw(struct mwifiex_adapter *, struct mwifiex_fw_image *);
 
 int mwifiex_recv_packet(struct mwifiex_adapter *, struct sk_buff *skb);
 
+int mwifiex_process_mgmt_packet(struct mwifiex_adapter *adapter,
+				struct sk_buff *skb);
+
 int mwifiex_process_event(struct mwifiex_adapter *adapter);
 
 int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
@@ -780,8 +821,17 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *, u16 cmdresp_no,
 				struct host_cmd_ds_command *resp);
 int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *,
 				  struct sk_buff *skb);
+int mwifiex_process_uap_rx_packet(struct mwifiex_adapter *adapter,
+				  struct sk_buff *skb);
+int mwifiex_handle_uap_rx_forward(struct mwifiex_private *priv,
+				  struct sk_buff *skb);
 int mwifiex_process_sta_event(struct mwifiex_private *);
+int mwifiex_process_uap_event(struct mwifiex_private *);
+struct mwifiex_sta_node *
+mwifiex_get_sta_entry(struct mwifiex_private *priv, u8 *mac);
+void mwifiex_delete_all_station_list(struct mwifiex_private *priv);
 void *mwifiex_process_sta_txpd(struct mwifiex_private *, struct sk_buff *skb);
+void *mwifiex_process_uap_txpd(struct mwifiex_private *, struct sk_buff *skb);
 int mwifiex_sta_init_cmd(struct mwifiex_private *, u8 first_sta);
 int mwifiex_cmd_802_11_scan(struct host_cmd_ds_command *cmd,
 			    struct mwifiex_scan_cmd_config *scan_cfg);
@@ -840,6 +890,8 @@ int mwifiex_set_secure_params(struct mwifiex_private *priv,
 void mwifiex_set_ht_params(struct mwifiex_private *priv,
 			   struct mwifiex_uap_bss_param *bss_cfg,
 			   struct cfg80211_ap_settings *params);
+void mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
+			   struct cfg80211_ap_settings *params);
 
 /*
  * This function checks if the queuing is RA based or not.
@@ -925,6 +977,14 @@ mwifiex_netdev_get_priv(struct net_device *dev)
 	return (struct mwifiex_private *) (*(unsigned long *) netdev_priv(dev));
 }
 
+/*
+ * This function checks if a skb holds a management frame.
+ */
+static inline bool mwifiex_is_skb_mgmt_frame(struct sk_buff *skb)
+{
+	return (*(u32 *)skb->data == PKT_TYPE_MGMT);
+}
+
 int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
 			     u32 func_init_shutdown);
 int mwifiex_add_card(void *, struct semaphore *, struct mwifiex_if_ops *, u8);
@@ -949,14 +1009,21 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
 			  const struct mwifiex_user_scan_cfg *user_scan_in);
 int mwifiex_set_radio(struct mwifiex_private *priv, u8 option);
 
-int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key,
-		       int key_len, u8 key_index, const u8 *mac_addr,
-		       int disable);
+int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
+		       const u8 *key, int key_len, u8 key_index,
+		       const u8 *mac_addr, int disable);
 
 int mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len);
 
 int mwifiex_get_ver_ext(struct mwifiex_private *priv);
 
+int mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
+			       struct ieee80211_channel *chan,
+			       enum nl80211_channel_type *channel_type,
+			       unsigned int duration);
+
+int mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role);
+
 int mwifiex_get_stats_info(struct mwifiex_private *priv,
 			   struct mwifiex_ds_get_stats *log);
 
@@ -987,6 +1054,8 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
 
 int mwifiex_main_process(struct mwifiex_adapter *);
 
+int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb);
+
 int mwifiex_get_bss_info(struct mwifiex_private *,
 			 struct mwifiex_bss_info *);
 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
@@ -997,8 +1066,10 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 int mwifiex_check_network_compatibility(struct mwifiex_private *priv,
 					struct mwifiex_bssdescriptor *bss_desc);
 
+u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type);
+
 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
-					      char *name,
+					      const char *name,
 					      enum nl80211_iftype type,
 					      u32 *flags,
 					      struct vif_params *params);
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 04dc7ca4ac2..e36a75988f8 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -614,9 +614,8 @@ mwifiex_scan_channel_list(struct mwifiex_private *priv,
 
 			/* Increment the TLV header length by the size
 			   appended */
-			chan_tlv_out->header.len =
-			cpu_to_le16(le16_to_cpu(chan_tlv_out->header.len) +
-			(sizeof(chan_tlv_out->chan_scan_param)));
+			le16_add_cpu(&chan_tlv_out->header.len,
+				     sizeof(chan_tlv_out->chan_scan_param));
 
 			/*
 			 * The tlv buffer length is set to the number of bytes
@@ -726,7 +725,6 @@ mwifiex_config_scan(struct mwifiex_private *priv,
 	struct mwifiex_ie_types_num_probes *num_probes_tlv;
 	struct mwifiex_ie_types_wildcard_ssid_params *wildcard_ssid_tlv;
 	struct mwifiex_ie_types_rates_param_set *rates_tlv;
-	const u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
 	u8 *tlv_pos;
 	u32 num_probes;
 	u32 ssid_len;
@@ -840,8 +838,7 @@ mwifiex_config_scan(struct mwifiex_private *priv,
 		 *  or BSSID filter applied to the scan results in the firmware.
 		 */
 		if ((i && ssid_filter) ||
-		    memcmp(scan_cfg_out->specific_bssid, &zero_mac,
-			   sizeof(zero_mac)))
+		    !is_zero_ether_addr(scan_cfg_out->specific_bssid))
 			*filtered_scan = true;
 	} else {
 		scan_cfg_out->bss_mode = (u8) adapter->scan_mode;
@@ -989,6 +986,8 @@ mwifiex_config_scan(struct mwifiex_private *priv,
 			*max_chan_per_scan = 2;
 		else if (chan_num < MWIFIEX_LIMIT_3_CHANNELS_PER_SCAN_CMD)
 			*max_chan_per_scan = 3;
+		else
+			*max_chan_per_scan = 4;
 	}
 }
 
@@ -1433,9 +1432,9 @@ int mwifiex_check_network_compatibility(struct mwifiex_private *priv,
 			if (ret)
 				dev_err(priv->adapter->dev, "cannot find ssid "
 					"%s\n", bss_desc->ssid.ssid);
-				break;
+			break;
 		default:
-				ret = 0;
+			ret = 0;
 		}
 	}
 
diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index df3a33c530c..5d87195390f 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -551,7 +551,6 @@ mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
 	struct host_cmd_tlv_mac_addr *tlv_mac;
 	u16 key_param_len = 0, cmd_size;
 	int ret = 0;
-	const u8 bc_mac[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
 	cmd->command = cpu_to_le16(HostCmd_CMD_802_11_KEY_MATERIAL);
 	key_material->action = cpu_to_le16(cmd_action);
@@ -593,7 +592,7 @@ mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
 			/* set 0 when re-key */
 			key_material->key_param_set.key[1] = 0;
 
-		if (0 != memcmp(enc_key->mac_addr, bc_mac, sizeof(bc_mac))) {
+		if (!is_broadcast_ether_addr(enc_key->mac_addr)) {
 			/* WAPI pairwise key: unicast */
 			key_material->key_param_set.key_info |=
 				cpu_to_le16(KEY_UNICAST);
@@ -610,7 +609,7 @@ mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
 		memcpy(&key_material->key_param_set.key[2],
 		       enc_key->key_material, enc_key->key_len);
 		memcpy(&key_material->key_param_set.key[2 + enc_key->key_len],
-		       enc_key->wapi_rxpn, WAPI_RXPN_LEN);
+		       enc_key->pn, PN_LEN);
 		key_material->key_param_set.length =
 			cpu_to_le16(WAPI_KEY_LEN + KEYPARAMSET_FIXED_LEN);
 
@@ -621,23 +620,38 @@ mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
 		return ret;
 	}
 	if (enc_key->key_len == WLAN_KEY_LEN_CCMP) {
-		dev_dbg(priv->adapter->dev, "cmd: WPA_AES\n");
-		key_material->key_param_set.key_type_id =
+		if (enc_key->is_igtk_key) {
+			dev_dbg(priv->adapter->dev, "cmd: CMAC_AES\n");
+			key_material->key_param_set.key_type_id =
+					cpu_to_le16(KEY_TYPE_ID_AES_CMAC);
+			if (cmd_oid == KEY_INFO_ENABLED)
+				key_material->key_param_set.key_info =
+						cpu_to_le16(KEY_ENABLED);
+			else
+				key_material->key_param_set.key_info =
+						cpu_to_le16(!KEY_ENABLED);
+
+			key_material->key_param_set.key_info |=
+							cpu_to_le16(KEY_IGTK);
+		} else {
+			dev_dbg(priv->adapter->dev, "cmd: WPA_AES\n");
+			key_material->key_param_set.key_type_id =
 						cpu_to_le16(KEY_TYPE_ID_AES);
-		if (cmd_oid == KEY_INFO_ENABLED)
-			key_material->key_param_set.key_info =
+			if (cmd_oid == KEY_INFO_ENABLED)
+				key_material->key_param_set.key_info =
 						cpu_to_le16(KEY_ENABLED);
-		else
-			key_material->key_param_set.key_info =
+			else
+				key_material->key_param_set.key_info =
 						cpu_to_le16(!KEY_ENABLED);
 
-		if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
+			if (enc_key->key_index & MWIFIEX_KEY_INDEX_UNICAST)
 				/* AES pairwise key: unicast */
-			key_material->key_param_set.key_info |=
+				key_material->key_param_set.key_info |=
 						cpu_to_le16(KEY_UNICAST);
-		else		/* AES group key: multicast */
-			key_material->key_param_set.key_info |=
+			else	/* AES group key: multicast */
+				key_material->key_param_set.key_info |=
 							cpu_to_le16(KEY_MCAST);
+		}
 	} else if (enc_key->key_len == WLAN_KEY_LEN_TKIP) {
 		dev_dbg(priv->adapter->dev, "cmd: WPA_TKIP\n");
 		key_material->key_param_set.key_type_id =
@@ -668,6 +682,24 @@ mwifiex_cmd_802_11_key_material(struct mwifiex_private *priv,
 		key_param_len = (u16)(enc_key->key_len + KEYPARAMSET_FIXED_LEN)
 				+ sizeof(struct mwifiex_ie_types_header);
 
+		if (le16_to_cpu(key_material->key_param_set.key_type_id) ==
+							KEY_TYPE_ID_AES_CMAC) {
+			struct mwifiex_cmac_param *param =
+					(void *)key_material->key_param_set.key;
+
+			memcpy(param->ipn, enc_key->pn, IGTK_PN_LEN);
+			memcpy(param->key, enc_key->key_material,
+			       WLAN_KEY_LEN_AES_CMAC);
+
+			key_param_len = sizeof(struct mwifiex_cmac_param);
+			key_material->key_param_set.key_len =
+						cpu_to_le16(key_param_len);
+			key_param_len += KEYPARAMSET_FIXED_LEN;
+			key_material->key_param_set.length =
+						cpu_to_le16(key_param_len);
+			key_param_len += sizeof(struct mwifiex_ie_types_header);
+		}
+
 		cmd->size = cpu_to_le16(sizeof(key_material->action) + S_DS_GEN
 					+ key_param_len);
 
@@ -1135,6 +1167,31 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
 				    S_DS_GEN);
 		ret = 0;
 		break;
+	case HostCmd_CMD_MGMT_FRAME_REG:
+		cmd_ptr->command = cpu_to_le16(cmd_no);
+		cmd_ptr->params.reg_mask.action = cpu_to_le16(cmd_action);
+		cmd_ptr->params.reg_mask.mask = cpu_to_le32(*(u32 *)data_buf);
+		cmd_ptr->size =
+			cpu_to_le16(sizeof(struct host_cmd_ds_mgmt_frame_reg) +
+				    S_DS_GEN);
+		ret = 0;
+		break;
+	case HostCmd_CMD_REMAIN_ON_CHAN:
+		cmd_ptr->command = cpu_to_le16(cmd_no);
+		memcpy(&cmd_ptr->params, data_buf,
+		       sizeof(struct host_cmd_ds_remain_on_chan));
+		cmd_ptr->size =
+		      cpu_to_le16(sizeof(struct host_cmd_ds_remain_on_chan) +
+				  S_DS_GEN);
+		break;
+	case HostCmd_CMD_P2P_MODE_CFG:
+		cmd_ptr->command = cpu_to_le16(cmd_no);
+		cmd_ptr->params.mode_cfg.action = cpu_to_le16(cmd_action);
+		cmd_ptr->params.mode_cfg.mode = cpu_to_le16(*(u16 *)data_buf);
+		cmd_ptr->size =
+			cpu_to_le16(sizeof(struct host_cmd_ds_p2p_mode_cfg) +
+				    S_DS_GEN);
+		break;
 	case HostCmd_CMD_FUNC_INIT:
 		if (priv->adapter->hw_status == MWIFIEX_HW_STATUS_RESET)
 			priv->adapter->hw_status = MWIFIEX_HW_STATUS_READY;
@@ -1204,6 +1261,8 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
 		else if (priv->bss_mode == NL80211_IFTYPE_STATION)
 			cmd_ptr->params.bss_mode.con_type =
 				CONNECTION_TYPE_INFRA;
+		else if (priv->bss_mode == NL80211_IFTYPE_AP)
+			cmd_ptr->params.bss_mode.con_type = CONNECTION_TYPE_AP;
 		cmd_ptr->size = cpu_to_le16(sizeof(struct
 				host_cmd_ds_set_bss_mode) + S_DS_GEN);
 		ret = 0;
@@ -1253,35 +1312,35 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 
 	if (first_sta) {
 		if (priv->adapter->iface_type == MWIFIEX_PCIE) {
-			ret = mwifiex_send_cmd_async(priv,
+			ret = mwifiex_send_cmd_sync(priv,
 						HostCmd_CMD_PCIE_DESC_DETAILS,
 						HostCmd_ACT_GEN_SET, 0, NULL);
 			if (ret)
 				return -1;
 		}
 
-		ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_FUNC_INIT,
-					     HostCmd_ACT_GEN_SET, 0, NULL);
+		ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_FUNC_INIT,
+					    HostCmd_ACT_GEN_SET, 0, NULL);
 		if (ret)
 			return -1;
 		/* Read MAC address from HW */
-		ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_GET_HW_SPEC,
-					     HostCmd_ACT_GEN_GET, 0, NULL);
+		ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_GET_HW_SPEC,
+					    HostCmd_ACT_GEN_GET, 0, NULL);
 		if (ret)
 			return -1;
 
 		/* Reconfigure tx buf size */
-		ret = mwifiex_send_cmd_async(priv,
-					     HostCmd_CMD_RECONFIGURE_TX_BUFF,
-					     HostCmd_ACT_GEN_SET, 0,
-					     &priv->adapter->tx_buf_size);
+		ret = mwifiex_send_cmd_sync(priv,
+					    HostCmd_CMD_RECONFIGURE_TX_BUFF,
+					    HostCmd_ACT_GEN_SET, 0,
+					    &priv->adapter->tx_buf_size);
 		if (ret)
 			return -1;
 
 		if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
 			/* Enable IEEE PS by default */
 			priv->adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
-			ret = mwifiex_send_cmd_async(
+			ret = mwifiex_send_cmd_sync(
 					priv, HostCmd_CMD_802_11_PS_MODE_ENH,
 					EN_AUTO_PS, BITMAP_STA_PS, NULL);
 			if (ret)
@@ -1290,21 +1349,21 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 	}
 
 	/* get tx rate */
-	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_TX_RATE_CFG,
-				     HostCmd_ACT_GEN_GET, 0, NULL);
+	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
+				    HostCmd_ACT_GEN_GET, 0, NULL);
 	if (ret)
 		return -1;
 	priv->data_rate = 0;
 
 	/* get tx power */
-	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_RF_TX_PWR,
-				     HostCmd_ACT_GEN_GET, 0, NULL);
+	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_TX_PWR,
+				    HostCmd_ACT_GEN_GET, 0, NULL);
 	if (ret)
 		return -1;
 
 	if (priv->bss_type == MWIFIEX_BSS_TYPE_STA) {
 		/* set ibss coalescing_status */
-		ret = mwifiex_send_cmd_async(
+		ret = mwifiex_send_cmd_sync(
 				priv, HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
 				HostCmd_ACT_GEN_SET, 0, &enable);
 		if (ret)
@@ -1314,16 +1373,16 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 	memset(&amsdu_aggr_ctrl, 0, sizeof(amsdu_aggr_ctrl));
 	amsdu_aggr_ctrl.enable = true;
 	/* Send request to firmware */
-	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_AMSDU_AGGR_CTRL,
-				     HostCmd_ACT_GEN_SET, 0,
-				     &amsdu_aggr_ctrl);
+	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_AMSDU_AGGR_CTRL,
+				    HostCmd_ACT_GEN_SET, 0,
+				    &amsdu_aggr_ctrl);
 	if (ret)
 		return -1;
 	/* MAC Control must be the last command in init_fw */
 	/* set MAC Control */
-	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
-				     HostCmd_ACT_GEN_SET, 0,
-				     &priv->curr_pkt_filter);
+	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
+				    HostCmd_ACT_GEN_SET, 0,
+				    &priv->curr_pkt_filter);
 	if (ret)
 		return -1;
 
@@ -1332,10 +1391,10 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 		/* Enable auto deep sleep */
 		auto_ds.auto_ds = DEEP_SLEEP_ON;
 		auto_ds.idle_time = DEEP_SLEEP_IDLE_TIME;
-		ret = mwifiex_send_cmd_async(priv,
-					     HostCmd_CMD_802_11_PS_MODE_ENH,
-					     EN_AUTO_PS, BITMAP_AUTO_DS,
-					     &auto_ds);
+		ret = mwifiex_send_cmd_sync(priv,
+					    HostCmd_CMD_802_11_PS_MODE_ENH,
+					    EN_AUTO_PS, BITMAP_AUTO_DS,
+					    &auto_ds);
 		if (ret)
 			return -1;
 	}
@@ -1343,23 +1402,24 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
 		/* Send cmd to FW to enable/disable 11D function */
 		state_11d = ENABLE_11D;
-		ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11_SNMP_MIB,
-					     HostCmd_ACT_GEN_SET, DOT11D_I,
-					     &state_11d);
+		ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
+					    HostCmd_ACT_GEN_SET, DOT11D_I,
+					    &state_11d);
 		if (ret)
 			dev_err(priv->adapter->dev,
 				"11D: failed to enable 11D\n");
 	}
 
+	/* set last_init_cmd before sending the command */
+	priv->adapter->last_init_cmd = HostCmd_CMD_11N_CFG;
+
 	/* Send cmd to FW to configure 11n specific configuration
 	 * (Short GI, Channel BW, Green field support etc.) for transmit
 	 */
 	tx_cfg.tx_htcap = MWIFIEX_FW_DEF_HTTXCFG;
-	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_CFG,
-				     HostCmd_ACT_GEN_SET, 0, &tx_cfg);
+	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_11N_CFG,
+				    HostCmd_ACT_GEN_SET, 0, &tx_cfg);
 
-	/* set last_init_cmd */
-	priv->adapter->last_init_cmd = HostCmd_CMD_11N_CFG;
 	ret = -EINPROGRESS;
 
 	return ret;
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 0b09004ebb2..e380171c4c5 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -123,7 +123,8 @@ static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv,
 {
 	struct host_cmd_ds_802_11_rssi_info_rsp *rssi_info_rsp =
 						&resp->params.rssi_info_rsp;
-	struct mwifiex_ds_misc_subsc_evt subsc_evt;
+	struct mwifiex_ds_misc_subsc_evt *subsc_evt =
+						&priv->async_subsc_evt_storage;
 
 	priv->data_rssi_last = le16_to_cpu(rssi_info_rsp->data_rssi_last);
 	priv->data_nf_last = le16_to_cpu(rssi_info_rsp->data_nf_last);
@@ -140,26 +141,27 @@ static int mwifiex_ret_802_11_rssi_info(struct mwifiex_private *priv,
 	if (priv->subsc_evt_rssi_state == EVENT_HANDLED)
 		return 0;
 
+	memset(subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
+
 	/* Resubscribe low and high rssi events with new thresholds */
-	memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
-	subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
-	subsc_evt.action = HostCmd_ACT_BITWISE_SET;
+	subsc_evt->events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
+	subsc_evt->action = HostCmd_ACT_BITWISE_SET;
 	if (priv->subsc_evt_rssi_state == RSSI_LOW_RECVD) {
-		subsc_evt.bcn_l_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg -
+		subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg -
 				priv->cqm_rssi_hyst);
-		subsc_evt.bcn_h_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
+		subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
 	} else if (priv->subsc_evt_rssi_state == RSSI_HIGH_RECVD) {
-		subsc_evt.bcn_l_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
-		subsc_evt.bcn_h_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg +
+		subsc_evt->bcn_l_rssi_cfg.abs_value = abs(priv->cqm_rssi_thold);
+		subsc_evt->bcn_h_rssi_cfg.abs_value = abs(priv->bcn_rssi_avg +
 				priv->cqm_rssi_hyst);
 	}
-	subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
-	subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
+	subsc_evt->bcn_l_rssi_cfg.evt_freq = 1;
+	subsc_evt->bcn_h_rssi_cfg.evt_freq = 1;
 
 	priv->subsc_evt_rssi_state = EVENT_HANDLED;
 
 	mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
-			       0, 0, &subsc_evt);
+			       0, 0, subsc_evt);
 
 	return 0;
 }
@@ -652,6 +654,38 @@ static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
 }
 
 /*
+ * This function handles the command response of remain on channel.
+ */
+static int
+mwifiex_ret_remain_on_chan(struct mwifiex_private *priv,
+			   struct host_cmd_ds_command *resp,
+			   struct host_cmd_ds_remain_on_chan *roc_cfg)
+{
+	struct host_cmd_ds_remain_on_chan *resp_cfg = &resp->params.roc_cfg;
+
+	if (roc_cfg)
+		memcpy(roc_cfg, resp_cfg, sizeof(*roc_cfg));
+
+	return 0;
+}
+
+/*
+ * This function handles the command response of P2P mode cfg.
+ */
+static int
+mwifiex_ret_p2p_mode_cfg(struct mwifiex_private *priv,
+			 struct host_cmd_ds_command *resp,
+			 void *data_buf)
+{
+	struct host_cmd_ds_p2p_mode_cfg *mode_cfg = &resp->params.mode_cfg;
+
+	if (data_buf)
+		*((u16 *)data_buf) = le16_to_cpu(mode_cfg->mode);
+
+	return 0;
+}
+
+/*
  * This function handles the command response of register access.
  *
  * The register value and offset are returned to the user. For EEPROM
@@ -736,7 +770,6 @@ static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
 {
 	struct host_cmd_ds_802_11_ibss_status *ibss_coal_resp =
 					&(resp->params.ibss_coalescing);
-	u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
 
 	if (le16_to_cpu(ibss_coal_resp->action) == HostCmd_ACT_GEN_SET)
 		return 0;
@@ -745,7 +778,7 @@ static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
 		"info: new BSSID %pM\n", ibss_coal_resp->bssid);
 
 	/* If rsp has NULL BSSID, Just return..... No Action */
-	if (!memcmp(ibss_coal_resp->bssid, zero_mac, ETH_ALEN)) {
+	if (is_zero_ether_addr(ibss_coal_resp->bssid)) {
 		dev_warn(priv->adapter->dev, "new BSSID is NULL\n");
 		return 0;
 	}
@@ -775,8 +808,7 @@ static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
  * This function handles the command response for subscribe event command.
  */
 static int mwifiex_ret_subsc_evt(struct mwifiex_private *priv,
-				 struct host_cmd_ds_command *resp,
-				 struct mwifiex_ds_misc_subsc_evt *sub_event)
+				 struct host_cmd_ds_command *resp)
 {
 	struct host_cmd_ds_802_11_subsc_evt *cmd_sub_event =
 		&resp->params.subsc_evt;
@@ -786,10 +818,6 @@ static int mwifiex_ret_subsc_evt(struct mwifiex_private *priv,
 	dev_dbg(priv->adapter->dev, "Bitmap of currently subscribed events: %16x\n",
 		le16_to_cpu(cmd_sub_event->events));
 
-	/*Return the subscribed event info for a Get request*/
-	if (sub_event)
-		sub_event->events = le16_to_cpu(cmd_sub_event->events);
-
 	return 0;
 }
 
@@ -879,6 +907,13 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 	case HostCmd_CMD_VERSION_EXT:
 		ret = mwifiex_ret_ver_ext(priv, resp, data_buf);
 		break;
+	case HostCmd_CMD_REMAIN_ON_CHAN:
+		ret = mwifiex_ret_remain_on_chan(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_P2P_MODE_CFG:
+		ret = mwifiex_ret_p2p_mode_cfg(priv, resp, data_buf);
+		break;
+	case HostCmd_CMD_MGMT_FRAME_REG:
 	case HostCmd_CMD_FUNC_INIT:
 	case HostCmd_CMD_FUNC_SHUTDOWN:
 		break;
@@ -913,7 +948,6 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 				le16_to_cpu(resp->params.tx_buf.mp_end_port));
 		break;
 	case HostCmd_CMD_AMSDU_AGGR_CTRL:
-		ret = mwifiex_ret_amsdu_aggr_ctrl(resp, data_buf);
 		break;
 	case HostCmd_CMD_WMM_GET_STATUS:
 		ret = mwifiex_ret_wmm_get_status(priv, resp);
@@ -932,12 +966,11 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 	case HostCmd_CMD_SET_BSS_MODE:
 		break;
 	case HostCmd_CMD_11N_CFG:
-		ret = mwifiex_ret_11n_cfg(resp, data_buf);
 		break;
 	case HostCmd_CMD_PCIE_DESC_DETAILS:
 		break;
 	case HostCmd_CMD_802_11_SUBSCRIBE_EVENT:
-		ret = mwifiex_ret_subsc_evt(priv, resp, data_buf);
+		ret = mwifiex_ret_subsc_evt(priv, resp);
 		break;
 	case HostCmd_CMD_UAP_SYS_CONFIG:
 		break;
diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c
index b8614a82546..aafde30e714 100644
--- a/drivers/net/wireless/mwifiex/sta_event.c
+++ b/drivers/net/wireless/mwifiex/sta_event.c
@@ -184,10 +184,9 @@ mwifiex_reset_connect_state(struct mwifiex_private *priv)
 int mwifiex_process_sta_event(struct mwifiex_private *priv)
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
-	int len, ret = 0;
+	int ret = 0;
 	u32 eventcause = adapter->event_cause;
-	struct station_info sinfo;
-	struct mwifiex_assoc_event *event;
+	u16 ctrl;
 
 	switch (eventcause) {
 	case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
@@ -279,10 +278,16 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 
 	case EVENT_MIC_ERR_UNICAST:
 		dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
+		cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
+					     NL80211_KEYTYPE_PAIRWISE,
+					     -1, NULL, GFP_KERNEL);
 		break;
 
 	case EVENT_MIC_ERR_MULTICAST:
 		dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
+		cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
+					     NL80211_KEYTYPE_GROUP,
+					     -1, NULL, GFP_KERNEL);
 		break;
 	case EVENT_MIB_CHANGED:
 	case EVENT_INIT_DONE:
@@ -384,11 +389,11 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 					      adapter->event_body);
 		break;
 	case EVENT_AMSDU_AGGR_CTRL:
-		dev_dbg(adapter->dev, "event:  AMSDU_AGGR_CTRL %d\n",
-			*(u16 *) adapter->event_body);
+		ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
+		dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
+
 		adapter->tx_buf_size =
-			min(adapter->curr_tx_buf_size,
-			    le16_to_cpu(*(__le16 *) adapter->event_body));
+				min_t(u16, adapter->curr_tx_buf_size, ctrl);
 		dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
 			adapter->tx_buf_size);
 		break;
@@ -405,51 +410,18 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 		dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
 		break;
 
-	case EVENT_UAP_STA_ASSOC:
-		memset(&sinfo, 0, sizeof(sinfo));
-		event = (struct mwifiex_assoc_event *)
-			(adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
-		if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
-			len = -1;
-
-			if (ieee80211_is_assoc_req(event->frame_control))
-				len = 0;
-			else if (ieee80211_is_reassoc_req(event->frame_control))
-				/* There will be ETH_ALEN bytes of
-				 * current_ap_addr before the re-assoc ies.
-				 */
-				len = ETH_ALEN;
-
-			if (len != -1) {
-				sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
-				sinfo.assoc_req_ies = &event->data[len];
-				len = (u8 *)sinfo.assoc_req_ies -
-				      (u8 *)&event->frame_control;
-				sinfo.assoc_req_ies_len =
-					le16_to_cpu(event->len) - (u16)len;
-			}
-		}
-		cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
-				 GFP_KERNEL);
-		break;
-	case EVENT_UAP_STA_DEAUTH:
-		cfg80211_del_sta(priv->netdev, adapter->event_body +
-				 MWIFIEX_UAP_EVENT_EXTRA_HEADER, GFP_KERNEL);
-		break;
-	case EVENT_UAP_BSS_IDLE:
-		priv->media_connected = false;
-		break;
-	case EVENT_UAP_BSS_ACTIVE:
-		priv->media_connected = true;
-		break;
-	case EVENT_UAP_BSS_START:
-		dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
-		memcpy(priv->netdev->dev_addr, adapter->event_body+2, ETH_ALEN);
-		break;
-	case EVENT_UAP_MIC_COUNTERMEASURES:
-		/* For future development */
-		dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+	case EVENT_REMAIN_ON_CHAN_EXPIRED:
+		dev_dbg(adapter->dev, "event: Remain on channel expired\n");
+		cfg80211_remain_on_channel_expired(priv->wdev,
+						   priv->roc_cfg.cookie,
+						   &priv->roc_cfg.chan,
+						   priv->roc_cfg.chan_type,
+						   GFP_ATOMIC);
+
+		memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
+
 		break;
+
 	default:
 		dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
 			eventcause);
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index fb2136089a2..0c9f70b2cbe 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -26,6 +26,9 @@
 #include "11n.h"
 #include "cfg80211.h"
 
+static int disconnect_on_suspend = 1;
+module_param(disconnect_on_suspend, int, 0644);
+
 /*
  * Copies the multicast address list from device to driver.
  *
@@ -192,6 +195,44 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 	return ret;
 }
 
+static int mwifiex_process_country_ie(struct mwifiex_private *priv,
+				      struct cfg80211_bss *bss)
+{
+	u8 *country_ie, country_ie_len;
+	struct mwifiex_802_11d_domain_reg *domain_info =
+					&priv->adapter->domain_reg;
+
+	country_ie = (u8 *)ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
+
+	if (!country_ie)
+		return 0;
+
+	country_ie_len = country_ie[1];
+	if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
+		return 0;
+
+	domain_info->country_code[0] = country_ie[2];
+	domain_info->country_code[1] = country_ie[3];
+	domain_info->country_code[2] = ' ';
+
+	country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
+
+	domain_info->no_of_triplet =
+		country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
+
+	memcpy((u8 *)domain_info->triplet,
+	       &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
+
+	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
+				   HostCmd_ACT_GEN_SET, 0, NULL)) {
+		wiphy_err(priv->adapter->wiphy,
+			  "11D: setting domain info in FW\n");
+		return -1;
+	}
+
+	return 0;
+}
+
 /*
  * In Ad-Hoc mode, the IBSS is created if not found in scan list.
  * In both Ad-Hoc and infra mode, an deauthentication is performed
@@ -207,6 +248,8 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 	priv->scan_block = false;
 
 	if (bss) {
+		mwifiex_process_country_ie(priv, bss);
+
 		/* Allocate and fill new bss descriptor */
 		bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
 				GFP_KERNEL);
@@ -408,6 +451,16 @@ EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 {
 	struct mwifiex_ds_hs_cfg hscfg;
+	struct mwifiex_private *priv;
+	int i;
+
+	if (disconnect_on_suspend) {
+		for (i = 0; i < adapter->priv_num; i++) {
+			priv = adapter->priv[i];
+			if (priv)
+				mwifiex_deauthenticate(priv, NULL);
+		}
+	}
 
 	if (adapter->hs_activated) {
 		dev_dbg(adapter->dev, "cmd: HS Already actived\n");
@@ -942,20 +995,26 @@ mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
  * This function allocates the IOCTL request buffer, fills it
  * with requisite parameters and calls the IOCTL handler.
  */
-int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key,
-			int key_len, u8 key_index,
-			const u8 *mac_addr, int disable)
+int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
+		       const u8 *key, int key_len, u8 key_index,
+		       const u8 *mac_addr, int disable)
 {
 	struct mwifiex_ds_encrypt_key encrypt_key;
 
 	memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 	encrypt_key.key_len = key_len;
+
+	if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
+		encrypt_key.is_igtk_key = true;
+
 	if (!disable) {
 		encrypt_key.key_index = key_index;
 		if (key_len)
 			memcpy(encrypt_key.key_material, key, key_len);
 		if (mac_addr)
 			memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
+		if (kp && kp->seq && kp->seq_len)
+			memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
 	} else {
 		encrypt_key.key_disable = true;
 		if (mac_addr)
@@ -984,6 +1043,65 @@ mwifiex_get_ver_ext(struct mwifiex_private *priv)
 	return 0;
 }
 
+int
+mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
+			   struct ieee80211_channel *chan,
+			   enum nl80211_channel_type *ct,
+			   unsigned int duration)
+{
+	struct host_cmd_ds_remain_on_chan roc_cfg;
+	u8 sc;
+
+	memset(&roc_cfg, 0, sizeof(roc_cfg));
+	roc_cfg.action = cpu_to_le16(action);
+	if (action == HostCmd_ACT_GEN_SET) {
+		roc_cfg.band_cfg = chan->band;
+		sc = mwifiex_chan_type_to_sec_chan_offset(*ct);
+		roc_cfg.band_cfg |= (sc << 2);
+
+		roc_cfg.channel =
+			ieee80211_frequency_to_channel(chan->center_freq);
+		roc_cfg.duration = cpu_to_le32(duration);
+	}
+	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_REMAIN_ON_CHAN,
+				  action, 0, &roc_cfg)) {
+		dev_err(priv->adapter->dev, "failed to remain on channel\n");
+		return -1;
+	}
+
+	return roc_cfg.status;
+}
+
+int
+mwifiex_set_bss_role(struct mwifiex_private *priv, u8 bss_role)
+{
+	if (GET_BSS_ROLE(priv) == bss_role) {
+		dev_dbg(priv->adapter->dev,
+			"info: already in the desired role.\n");
+		return 0;
+	}
+
+	mwifiex_free_priv(priv);
+	mwifiex_init_priv(priv);
+
+	priv->bss_role = bss_role;
+	switch (bss_role) {
+	case MWIFIEX_BSS_ROLE_UAP:
+		priv->bss_mode = NL80211_IFTYPE_AP;
+		break;
+	case MWIFIEX_BSS_ROLE_STA:
+	case MWIFIEX_BSS_ROLE_ANY:
+	default:
+		priv->bss_mode = NL80211_IFTYPE_STATION;
+		break;
+	}
+
+	mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
+			      HostCmd_ACT_GEN_SET, 0, NULL);
+
+	return mwifiex_sta_init_cmd(priv, false);
+}
+
 /*
  * Sends IOCTL request to get statistics information.
  *
diff --git a/drivers/net/wireless/mwifiex/sta_rx.c b/drivers/net/wireless/mwifiex/sta_rx.c
index 02ce3b77d3e..07d32b73783 100644
--- a/drivers/net/wireless/mwifiex/sta_rx.c
+++ b/drivers/net/wireless/mwifiex/sta_rx.c
@@ -54,8 +54,8 @@ int mwifiex_process_rx_packet(struct mwifiex_adapter *adapter,
 
 	local_rx_pd = (struct rxpd *) (skb->data);
 
-	rx_pkt_hdr = (struct rx_packet_hdr *) ((u8 *) local_rx_pd +
-				local_rx_pd->rx_pkt_offset);
+	rx_pkt_hdr = (void *)local_rx_pd +
+		     le16_to_cpu(local_rx_pd->rx_pkt_offset);
 
 	if (!memcmp(&rx_pkt_hdr->rfc1042_hdr,
 		    rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr))) {
@@ -125,7 +125,7 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
 	struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb);
 	struct rx_packet_hdr *rx_pkt_hdr;
 	u8 ta[ETH_ALEN];
-	u16 rx_pkt_type;
+	u16 rx_pkt_type, rx_pkt_offset, rx_pkt_length, seq_num;
 	struct mwifiex_private *priv =
 			mwifiex_get_priv_by_id(adapter, rx_info->bss_num,
 					       rx_info->bss_type);
@@ -134,16 +134,17 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
 		return -1;
 
 	local_rx_pd = (struct rxpd *) (skb->data);
-	rx_pkt_type = local_rx_pd->rx_pkt_type;
+	rx_pkt_type = le16_to_cpu(local_rx_pd->rx_pkt_type);
+	rx_pkt_offset = le16_to_cpu(local_rx_pd->rx_pkt_offset);
+	rx_pkt_length = le16_to_cpu(local_rx_pd->rx_pkt_length);
+	seq_num = le16_to_cpu(local_rx_pd->seq_num);
 
-	rx_pkt_hdr = (struct rx_packet_hdr *) ((u8 *) local_rx_pd +
-					local_rx_pd->rx_pkt_offset);
+	rx_pkt_hdr = (void *)local_rx_pd + rx_pkt_offset;
 
-	if ((local_rx_pd->rx_pkt_offset + local_rx_pd->rx_pkt_length) >
-	    (u16) skb->len) {
-		dev_err(adapter->dev, "wrong rx packet: len=%d,"
-			" rx_pkt_offset=%d, rx_pkt_length=%d\n", skb->len,
-		       local_rx_pd->rx_pkt_offset, local_rx_pd->rx_pkt_length);
+	if ((rx_pkt_offset + rx_pkt_length) > (u16) skb->len) {
+		dev_err(adapter->dev,
+			"wrong rx packet: len=%d, rx_pkt_offset=%d, rx_pkt_length=%d\n",
+			skb->len, rx_pkt_offset, rx_pkt_length);
 		priv->stats.rx_dropped++;
 
 		if (adapter->if_ops.data_complete)
@@ -154,14 +155,14 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
 		return ret;
 	}
 
-	if (local_rx_pd->rx_pkt_type == PKT_TYPE_AMSDU) {
+	if (rx_pkt_type == PKT_TYPE_AMSDU) {
 		struct sk_buff_head list;
 		struct sk_buff *rx_skb;
 
 		__skb_queue_head_init(&list);
 
-		skb_pull(skb, local_rx_pd->rx_pkt_offset);
-		skb_trim(skb, local_rx_pd->rx_pkt_length);
+		skb_pull(skb, rx_pkt_offset);
+		skb_trim(skb, rx_pkt_length);
 
 		ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr,
 					 priv->wdev->iftype, 0, false);
@@ -173,6 +174,12 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
 				dev_err(adapter->dev, "Rx of A-MSDU failed");
 		}
 		return 0;
+	} else if (rx_pkt_type == PKT_TYPE_MGMT) {
+		ret = mwifiex_process_mgmt_packet(adapter, skb);
+		if (ret)
+			dev_err(adapter->dev, "Rx of mgmt packet failed");
+		dev_kfree_skb_any(skb);
+		return ret;
 	}
 
 	/*
@@ -189,17 +196,14 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
 		memcpy(ta, rx_pkt_hdr->eth803_hdr.h_source, ETH_ALEN);
 	} else {
 		if (rx_pkt_type != PKT_TYPE_BAR)
-			priv->rx_seq[local_rx_pd->priority] =
-						local_rx_pd->seq_num;
+			priv->rx_seq[local_rx_pd->priority] = seq_num;
 		memcpy(ta, priv->curr_bss_params.bss_descriptor.mac_address,
 		       ETH_ALEN);
 	}
 
 	/* Reorder and send to OS */
-	ret = mwifiex_11n_rx_reorder_pkt(priv, local_rx_pd->seq_num,
-					     local_rx_pd->priority, ta,
-					     (u8) local_rx_pd->rx_pkt_type,
-					     skb);
+	ret = mwifiex_11n_rx_reorder_pkt(priv, seq_num, local_rx_pd->priority,
+					 ta, (u8) rx_pkt_type, skb);
 
 	if (ret || (rx_pkt_type == PKT_TYPE_BAR)) {
 		if (adapter->if_ops.data_complete)
diff --git a/drivers/net/wireless/mwifiex/sta_tx.c b/drivers/net/wireless/mwifiex/sta_tx.c
index 0a046d3a0c1..7b581af24f5 100644
--- a/drivers/net/wireless/mwifiex/sta_tx.c
+++ b/drivers/net/wireless/mwifiex/sta_tx.c
@@ -48,6 +48,7 @@ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv,
 	struct txpd *local_tx_pd;
 	struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb);
 	u8 pad;
+	u16 pkt_type, pkt_offset;
 
 	if (!skb->len) {
 		dev_err(adapter->dev, "Tx: bad packet length: %d\n", skb->len);
@@ -55,6 +56,8 @@ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv,
 		return skb->data;
 	}
 
+	pkt_type = mwifiex_is_skb_mgmt_frame(skb) ? PKT_TYPE_MGMT : 0;
+
 	/* If skb->data is not aligned; add padding */
 	pad = (4 - (((void *)skb->data - NULL) & 0x3)) % 4;
 
@@ -93,7 +96,14 @@ void *mwifiex_process_sta_txpd(struct mwifiex_private *priv,
 	}
 
 	/* Offset of actual data */
-	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd) + pad);
+	pkt_offset = sizeof(struct txpd) + pad;
+	if (pkt_type == PKT_TYPE_MGMT) {
+		/* Set the packet type and add header for management frame */
+		local_tx_pd->tx_pkt_type = cpu_to_le16(pkt_type);
+		pkt_offset += MWIFIEX_MGMT_FRAME_HEADER_SIZE;
+	}
+
+	local_tx_pd->tx_pkt_offset = cpu_to_le16(pkt_offset);
 
 	/* make space for INTF_HEADER_LEN */
 	skb_push(skb, INTF_HEADER_LEN);
diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c
index cecb2728319..2af263992e8 100644
--- a/drivers/net/wireless/mwifiex/txrx.c
+++ b/drivers/net/wireless/mwifiex/txrx.c
@@ -51,6 +51,9 @@ int mwifiex_handle_rx_packet(struct mwifiex_adapter *adapter,
 	rx_info->bss_num = priv->bss_num;
 	rx_info->bss_type = priv->bss_type;
 
+	if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+		return mwifiex_process_uap_rx_packet(adapter, skb);
+
 	return mwifiex_process_sta_rx_packet(adapter, skb);
 }
 EXPORT_SYMBOL_GPL(mwifiex_handle_rx_packet);
@@ -72,7 +75,11 @@ int mwifiex_process_tx(struct mwifiex_private *priv, struct sk_buff *skb,
 	u8 *head_ptr;
 	struct txpd *local_tx_pd = NULL;
 
-	head_ptr = mwifiex_process_sta_txpd(priv, skb);
+	if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
+		head_ptr = mwifiex_process_uap_txpd(priv, skb);
+	else
+		head_ptr = mwifiex_process_sta_txpd(priv, skb);
+
 	if (head_ptr) {
 		if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
 			local_tx_pd =
@@ -157,6 +164,8 @@ int mwifiex_write_data_complete(struct mwifiex_adapter *adapter,
 		priv->stats.tx_errors++;
 	}
 
+	if (tx_info->flags & MWIFIEX_BUF_FLAG_BRIDGED_PKT)
+		atomic_dec_return(&adapter->pending_bridged_pkts);
 	if (atomic_dec_return(&adapter->tx_pending) >= LOW_TX_PENDING)
 		goto done;
 
diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index f40e93fe894..d95a2d558fc 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -167,6 +167,7 @@ mwifiex_set_ht_params(struct mwifiex_private *priv,
 	if (ht_ie) {
 		memcpy(&bss_cfg->ht_cap, ht_ie + 2,
 		       sizeof(struct ieee80211_ht_cap));
+		priv->ap_11n_enabled = 1;
 	} else {
 		memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
 		bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
@@ -176,6 +177,25 @@ mwifiex_set_ht_params(struct mwifiex_private *priv,
 	return;
 }
 
+/* This function finds supported rates IE from beacon parameter and sets
+ * these rates into bss_config structure.
+ */
+void
+mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
+		      struct cfg80211_ap_settings *params)
+{
+	struct ieee_types_header *rate_ie;
+	int var_offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
+	const u8 *var_pos = params->beacon.head + var_offset;
+	int len = params->beacon.head_len - var_offset;
+
+	rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
+	if (rate_ie)
+		memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
+
+	return;
+}
+
 /* This function initializes some of mwifiex_uap_bss_param variables.
  * This helps FW in ignoring invalid values. These values may or may not
  * be get updated to valid ones at later stage.
@@ -322,8 +342,11 @@ mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 	struct host_cmd_tlv_retry_limit *retry_limit;
 	struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
 	struct host_cmd_tlv_auth_type *auth_type;
+	struct host_cmd_tlv_rates *tlv_rates;
+	struct host_cmd_tlv_ageout_timer *ao_timer, *ps_ao_timer;
 	struct mwifiex_ie_types_htcap *htcap;
 	struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
+	int i;
 	u16 cmd_size = *param_size;
 
 	if (bss_cfg->ssid.ssid_len) {
@@ -343,7 +366,23 @@ mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 		cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
 		tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
 	}
-	if (bss_cfg->channel && bss_cfg->channel <= MAX_CHANNEL_BAND_BG) {
+	if (bss_cfg->rates[0]) {
+		tlv_rates = (struct host_cmd_tlv_rates *)tlv;
+		tlv_rates->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RATES);
+
+		for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_cfg->rates[i];
+		     i++)
+			tlv_rates->rates[i] = bss_cfg->rates[i];
+
+		tlv_rates->tlv.len = cpu_to_le16(i);
+		cmd_size += sizeof(struct host_cmd_tlv_rates) + i;
+		tlv += sizeof(struct host_cmd_tlv_rates) + i;
+	}
+	if (bss_cfg->channel &&
+	    ((bss_cfg->band_cfg == BAND_CONFIG_BG &&
+	      bss_cfg->channel <= MAX_CHANNEL_BAND_BG) ||
+	    (bss_cfg->band_cfg == BAND_CONFIG_A &&
+	     bss_cfg->channel <= MAX_CHANNEL_BAND_A))) {
 		chan_band = (struct host_cmd_tlv_channel_band *)tlv;
 		chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
 		chan_band->tlv.len =
@@ -459,6 +498,27 @@ mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 		tlv += sizeof(struct mwifiex_ie_types_htcap);
 	}
 
+	if (bss_cfg->sta_ao_timer) {
+		ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
+		ao_timer->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AO_TIMER);
+		ao_timer->tlv.len = cpu_to_le16(sizeof(*ao_timer) -
+						sizeof(struct host_cmd_tlv));
+		ao_timer->sta_ao_timer = cpu_to_le32(bss_cfg->sta_ao_timer);
+		cmd_size += sizeof(*ao_timer);
+		tlv += sizeof(*ao_timer);
+	}
+
+	if (bss_cfg->ps_sta_ao_timer) {
+		ps_ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
+		ps_ao_timer->tlv.type = cpu_to_le16(TLV_TYPE_UAP_PS_AO_TIMER);
+		ps_ao_timer->tlv.len = cpu_to_le16(sizeof(*ps_ao_timer) -
+						   sizeof(struct host_cmd_tlv));
+		ps_ao_timer->sta_ao_timer =
+					cpu_to_le32(bss_cfg->ps_sta_ao_timer);
+		cmd_size += sizeof(*ps_ao_timer);
+		tlv += sizeof(*ps_ao_timer);
+	}
+
 	*param_size = cmd_size;
 
 	return 0;
diff --git a/drivers/net/wireless/mwifiex/uap_event.c b/drivers/net/wireless/mwifiex/uap_event.c
new file mode 100644
index 00000000000..a33fa394e34
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/uap_event.c
@@ -0,0 +1,290 @@
+/*
+ * Marvell Wireless LAN device driver: AP event handling
+ *
+ * Copyright (C) 2012, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "main.h"
+#include "11n.h"
+
+/*
+ * This function will return the pointer to station entry in station list
+ * table which matches specified mac address.
+ * This function should be called after acquiring RA list spinlock.
+ * NULL is returned if station entry is not found in associated STA list.
+ */
+struct mwifiex_sta_node *
+mwifiex_get_sta_entry(struct mwifiex_private *priv, u8 *mac)
+{
+	struct mwifiex_sta_node *node;
+
+	if (!mac)
+		return NULL;
+
+	list_for_each_entry(node, &priv->sta_list, list) {
+		if (!memcmp(node->mac_addr, mac, ETH_ALEN))
+			return node;
+	}
+
+	return NULL;
+}
+
+/*
+ * This function will add a sta_node entry to associated station list
+ * table with the given mac address.
+ * If entry exist already, existing entry is returned.
+ * If received mac address is NULL, NULL is returned.
+ */
+static struct mwifiex_sta_node *
+mwifiex_add_sta_entry(struct mwifiex_private *priv, u8 *mac)
+{
+	struct mwifiex_sta_node *node;
+	unsigned long flags;
+
+	if (!mac)
+		return NULL;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+	node = mwifiex_get_sta_entry(priv, mac);
+	if (node)
+		goto done;
+
+	node = kzalloc(sizeof(struct mwifiex_sta_node), GFP_ATOMIC);
+	if (!node)
+		goto done;
+
+	memcpy(node->mac_addr, mac, ETH_ALEN);
+	list_add_tail(&node->list, &priv->sta_list);
+
+done:
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+	return node;
+}
+
+/*
+ * This function will search for HT IE in association request IEs
+ * and set station HT parameters accordingly.
+ */
+static void
+mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies,
+		       int ies_len, struct mwifiex_sta_node *node)
+{
+	const struct ieee80211_ht_cap *ht_cap;
+
+	if (!ies)
+		return;
+
+	ht_cap = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
+	if (ht_cap) {
+		node->is_11n_enabled = 1;
+		node->max_amsdu = le16_to_cpu(ht_cap->cap_info) &
+				  IEEE80211_HT_CAP_MAX_AMSDU ?
+				  MWIFIEX_TX_DATA_BUF_SIZE_8K :
+				  MWIFIEX_TX_DATA_BUF_SIZE_4K;
+	} else {
+		node->is_11n_enabled = 0;
+	}
+
+	return;
+}
+
+/*
+ * This function will delete a station entry from station list
+ */
+static void mwifiex_del_sta_entry(struct mwifiex_private *priv, u8 *mac)
+{
+	struct mwifiex_sta_node *node, *tmp;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+
+	node = mwifiex_get_sta_entry(priv, mac);
+	if (node) {
+		list_for_each_entry_safe(node, tmp, &priv->sta_list,
+					 list) {
+			list_del(&node->list);
+			kfree(node);
+		}
+	}
+
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+	return;
+}
+
+/*
+ * This function will delete all stations from associated station list.
+ */
+static void mwifiex_del_all_sta_list(struct mwifiex_private *priv)
+{
+	struct mwifiex_sta_node *node, *tmp;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+
+	list_for_each_entry_safe(node, tmp, &priv->sta_list, list) {
+		list_del(&node->list);
+		kfree(node);
+	}
+
+	INIT_LIST_HEAD(&priv->sta_list);
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+	return;
+}
+
+/*
+ * This function handles AP interface specific events generated by firmware.
+ *
+ * Event specific routines are called by this function based
+ * upon the generated event cause.
+ *
+ *
+ * Events supported for AP -
+ *      - EVENT_UAP_STA_ASSOC
+ *      - EVENT_UAP_STA_DEAUTH
+ *      - EVENT_UAP_BSS_ACTIVE
+ *      - EVENT_UAP_BSS_START
+ *      - EVENT_UAP_BSS_IDLE
+ *      - EVENT_UAP_MIC_COUNTERMEASURES:
+ */
+int mwifiex_process_uap_event(struct mwifiex_private *priv)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	int len, i;
+	u32 eventcause = adapter->event_cause;
+	struct station_info sinfo;
+	struct mwifiex_assoc_event *event;
+	struct mwifiex_sta_node *node;
+	u8 *deauth_mac;
+	struct host_cmd_ds_11n_batimeout *ba_timeout;
+	u16 ctrl;
+
+	switch (eventcause) {
+	case EVENT_UAP_STA_ASSOC:
+		memset(&sinfo, 0, sizeof(sinfo));
+		event = (struct mwifiex_assoc_event *)
+			(adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
+		if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
+			len = -1;
+
+			if (ieee80211_is_assoc_req(event->frame_control))
+				len = 0;
+			else if (ieee80211_is_reassoc_req(event->frame_control))
+				/* There will be ETH_ALEN bytes of
+				 * current_ap_addr before the re-assoc ies.
+				 */
+				len = ETH_ALEN;
+
+			if (len != -1) {
+				sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
+				sinfo.assoc_req_ies = &event->data[len];
+				len = (u8 *)sinfo.assoc_req_ies -
+				      (u8 *)&event->frame_control;
+				sinfo.assoc_req_ies_len =
+					le16_to_cpu(event->len) - (u16)len;
+			}
+		}
+		cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
+				 GFP_KERNEL);
+
+		node = mwifiex_add_sta_entry(priv, event->sta_addr);
+		if (!node) {
+			dev_warn(adapter->dev,
+				 "could not create station entry!\n");
+			return -1;
+		}
+
+		if (!priv->ap_11n_enabled)
+			break;
+
+		mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies,
+				       sinfo.assoc_req_ies_len, node);
+
+		for (i = 0; i < MAX_NUM_TID; i++) {
+			if (node->is_11n_enabled)
+				node->ampdu_sta[i] =
+					      priv->aggr_prio_tbl[i].ampdu_user;
+			else
+				node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
+		}
+		memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
+		break;
+	case EVENT_UAP_STA_DEAUTH:
+		deauth_mac = adapter->event_body +
+			     MWIFIEX_UAP_EVENT_EXTRA_HEADER;
+		cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);
+
+		if (priv->ap_11n_enabled) {
+			mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
+			mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
+		}
+		mwifiex_del_sta_entry(priv, deauth_mac);
+		break;
+	case EVENT_UAP_BSS_IDLE:
+		priv->media_connected = false;
+		mwifiex_clean_txrx(priv);
+		mwifiex_del_all_sta_list(priv);
+		break;
+	case EVENT_UAP_BSS_ACTIVE:
+		priv->media_connected = true;
+		break;
+	case EVENT_UAP_BSS_START:
+		dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+		memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
+		       ETH_ALEN);
+		break;
+	case EVENT_UAP_MIC_COUNTERMEASURES:
+		/* For future development */
+		dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+		break;
+	case EVENT_AMSDU_AGGR_CTRL:
+		ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
+		dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
+
+		if (priv->media_connected) {
+			adapter->tx_buf_size =
+				min_t(u16, adapter->curr_tx_buf_size, ctrl);
+			dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
+				adapter->tx_buf_size);
+		}
+		break;
+	case EVENT_ADDBA:
+		dev_dbg(adapter->dev, "event: ADDBA Request\n");
+		if (priv->media_connected)
+			mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_RSP,
+					       HostCmd_ACT_GEN_SET, 0,
+					       adapter->event_body);
+		break;
+	case EVENT_DELBA:
+		dev_dbg(adapter->dev, "event: DELBA Request\n");
+		if (priv->media_connected)
+			mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
+		break;
+	case EVENT_BA_STREAM_TIEMOUT:
+		dev_dbg(adapter->dev, "event:  BA Stream timeout\n");
+		if (priv->media_connected) {
+			ba_timeout = (void *)adapter->event_body;
+			mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
+		}
+		break;
+	default:
+		dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
+			eventcause);
+		break;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c
new file mode 100644
index 00000000000..0966ac24b3b
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/uap_txrx.c
@@ -0,0 +1,340 @@
+/*
+ * Marvell Wireless LAN device driver: AP TX and RX data handling
+ *
+ * Copyright (C) 2012, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n_aggr.h"
+#include "11n_rxreorder.h"
+
+static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
+					 struct sk_buff *skb)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct uap_rxpd *uap_rx_pd;
+	struct rx_packet_hdr *rx_pkt_hdr;
+	struct sk_buff *new_skb;
+	struct mwifiex_txinfo *tx_info;
+	int hdr_chop;
+	struct timeval tv;
+	u8 rfc1042_eth_hdr[ETH_ALEN] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+	uap_rx_pd = (struct uap_rxpd *)(skb->data);
+	rx_pkt_hdr = (void *)uap_rx_pd + le16_to_cpu(uap_rx_pd->rx_pkt_offset);
+
+	if ((atomic_read(&adapter->pending_bridged_pkts) >=
+					     MWIFIEX_BRIDGED_PKTS_THRESHOLD)) {
+		dev_err(priv->adapter->dev,
+			"Tx: Bridge packet limit reached. Drop packet!\n");
+		kfree_skb(skb);
+		return;
+	}
+
+	if (!memcmp(&rx_pkt_hdr->rfc1042_hdr,
+		    rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)))
+		/* Chop off the rxpd + the excess memory from
+		 * 802.2/llc/snap header that was removed.
+		 */
+		hdr_chop = (u8 *)eth_hdr - (u8 *)uap_rx_pd;
+	else
+		/* Chop off the rxpd */
+		hdr_chop = (u8 *)&rx_pkt_hdr->eth803_hdr - (u8 *)uap_rx_pd;
+
+	/* Chop off the leading header bytes so the it points
+	 * to the start of either the reconstructed EthII frame
+	 * or the 802.2/llc/snap frame.
+	 */
+	skb_pull(skb, hdr_chop);
+
+	if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) {
+		dev_dbg(priv->adapter->dev,
+			"data: Tx: insufficient skb headroom %d\n",
+			skb_headroom(skb));
+		/* Insufficient skb headroom - allocate a new skb */
+		new_skb =
+			skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
+		if (unlikely(!new_skb)) {
+			dev_err(priv->adapter->dev,
+				"Tx: cannot allocate new_skb\n");
+			kfree_skb(skb);
+			priv->stats.tx_dropped++;
+			return;
+		}
+
+		kfree_skb(skb);
+		skb = new_skb;
+		dev_dbg(priv->adapter->dev, "info: new skb headroom %d\n",
+			skb_headroom(skb));
+	}
+
+	tx_info = MWIFIEX_SKB_TXCB(skb);
+	tx_info->bss_num = priv->bss_num;
+	tx_info->bss_type = priv->bss_type;
+	tx_info->flags |= MWIFIEX_BUF_FLAG_BRIDGED_PKT;
+
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
+	mwifiex_wmm_add_buf_txqueue(priv, skb);
+	atomic_inc(&adapter->tx_pending);
+	atomic_inc(&adapter->pending_bridged_pkts);
+
+	if ((atomic_read(&adapter->tx_pending) >= MAX_TX_PENDING)) {
+		mwifiex_set_trans_start(priv->netdev);
+		mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
+	}
+	return;
+}
+
+/*
+ * This function contains logic for AP packet forwarding.
+ *
+ * If a packet is multicast/broadcast, it is sent to kernel/upper layer
+ * as well as queued back to AP TX queue so that it can be sent to other
+ * associated stations.
+ * If a packet is unicast and RA is present in associated station list,
+ * it is again requeued into AP TX queue.
+ * If a packet is unicast and RA is not in associated station list,
+ * packet is forwarded to kernel to handle routing logic.
+ */
+int mwifiex_handle_uap_rx_forward(struct mwifiex_private *priv,
+				  struct sk_buff *skb)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct uap_rxpd *uap_rx_pd;
+	struct rx_packet_hdr *rx_pkt_hdr;
+	u8 ra[ETH_ALEN];
+	struct sk_buff *skb_uap;
+
+	uap_rx_pd = (struct uap_rxpd *)(skb->data);
+	rx_pkt_hdr = (void *)uap_rx_pd + le16_to_cpu(uap_rx_pd->rx_pkt_offset);
+
+	/* don't do packet forwarding in disconnected state */
+	if (!priv->media_connected) {
+		dev_err(adapter->dev, "drop packet in disconnected state.\n");
+		dev_kfree_skb_any(skb);
+		return 0;
+	}
+
+	memcpy(ra, rx_pkt_hdr->eth803_hdr.h_dest, ETH_ALEN);
+
+	if (is_multicast_ether_addr(ra)) {
+		skb_uap = skb_copy(skb, GFP_ATOMIC);
+		mwifiex_uap_queue_bridged_pkt(priv, skb_uap);
+	} else {
+		if (mwifiex_get_sta_entry(priv, ra)) {
+			/* Requeue Intra-BSS packet */
+			mwifiex_uap_queue_bridged_pkt(priv, skb);
+			return 0;
+		}
+	}
+
+	/* Forward unicat/Inter-BSS packets to kernel. */
+	return mwifiex_process_rx_packet(adapter, skb);
+}
+
+/*
+ * This function processes the packet received on AP interface.
+ *
+ * The function looks into the RxPD and performs sanity tests on the
+ * received buffer to ensure its a valid packet before processing it
+ * further. If the packet is determined to be aggregated, it is
+ * de-aggregated accordingly. Then skb is passed to AP packet forwarding logic.
+ *
+ * The completion callback is called after processing is complete.
+ */
+int mwifiex_process_uap_rx_packet(struct mwifiex_adapter *adapter,
+				  struct sk_buff *skb)
+{
+	int ret;
+	struct uap_rxpd *uap_rx_pd;
+	struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb);
+	struct rx_packet_hdr *rx_pkt_hdr;
+	u16 rx_pkt_type;
+	u8 ta[ETH_ALEN], pkt_type;
+	struct mwifiex_sta_node *node;
+
+	struct mwifiex_private *priv =
+			mwifiex_get_priv_by_id(adapter, rx_info->bss_num,
+					       rx_info->bss_type);
+
+	if (!priv)
+		return -1;
+
+	uap_rx_pd = (struct uap_rxpd *)(skb->data);
+	rx_pkt_type = le16_to_cpu(uap_rx_pd->rx_pkt_type);
+	rx_pkt_hdr = (void *)uap_rx_pd + le16_to_cpu(uap_rx_pd->rx_pkt_offset);
+
+	if ((le16_to_cpu(uap_rx_pd->rx_pkt_offset) +
+	     le16_to_cpu(uap_rx_pd->rx_pkt_length)) > (u16) skb->len) {
+		dev_err(adapter->dev,
+			"wrong rx packet: len=%d, offset=%d, length=%d\n",
+			skb->len, le16_to_cpu(uap_rx_pd->rx_pkt_offset),
+			le16_to_cpu(uap_rx_pd->rx_pkt_length));
+		priv->stats.rx_dropped++;
+
+		if (adapter->if_ops.data_complete)
+			adapter->if_ops.data_complete(adapter, skb);
+		else
+			dev_kfree_skb_any(skb);
+
+		return 0;
+	}
+
+	if (le16_to_cpu(uap_rx_pd->rx_pkt_type) == PKT_TYPE_AMSDU) {
+		struct sk_buff_head list;
+		struct sk_buff *rx_skb;
+
+		__skb_queue_head_init(&list);
+		skb_pull(skb, le16_to_cpu(uap_rx_pd->rx_pkt_offset));
+		skb_trim(skb, le16_to_cpu(uap_rx_pd->rx_pkt_length));
+
+		ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr,
+					 priv->wdev->iftype, 0, false);
+
+		while (!skb_queue_empty(&list)) {
+			rx_skb = __skb_dequeue(&list);
+			ret = mwifiex_recv_packet(adapter, rx_skb);
+			if (ret)
+				dev_err(adapter->dev,
+					"AP:Rx A-MSDU failed");
+		}
+
+		return 0;
+	} else if (rx_pkt_type == PKT_TYPE_MGMT) {
+		ret = mwifiex_process_mgmt_packet(adapter, skb);
+		if (ret)
+			dev_err(adapter->dev, "Rx of mgmt packet failed");
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	memcpy(ta, rx_pkt_hdr->eth803_hdr.h_source, ETH_ALEN);
+
+	if (rx_pkt_type != PKT_TYPE_BAR && uap_rx_pd->priority < MAX_NUM_TID) {
+		node = mwifiex_get_sta_entry(priv, ta);
+		if (node)
+			node->rx_seq[uap_rx_pd->priority] =
+						le16_to_cpu(uap_rx_pd->seq_num);
+	}
+
+	if (!priv->ap_11n_enabled ||
+	    (!mwifiex_11n_get_rx_reorder_tbl(priv, uap_rx_pd->priority, ta) &&
+	    (le16_to_cpu(uap_rx_pd->rx_pkt_type) != PKT_TYPE_AMSDU))) {
+		ret = mwifiex_handle_uap_rx_forward(priv, skb);
+		return ret;
+	}
+
+	/* Reorder and send to kernel */
+	pkt_type = (u8)le16_to_cpu(uap_rx_pd->rx_pkt_type);
+	ret = mwifiex_11n_rx_reorder_pkt(priv, le16_to_cpu(uap_rx_pd->seq_num),
+					 uap_rx_pd->priority, ta, pkt_type,
+					 skb);
+
+	if (ret || (rx_pkt_type == PKT_TYPE_BAR)) {
+		if (adapter->if_ops.data_complete)
+			adapter->if_ops.data_complete(adapter, skb);
+		else
+			dev_kfree_skb_any(skb);
+	}
+
+	if (ret)
+		priv->stats.rx_dropped++;
+
+	return ret;
+}
+
+/*
+ * This function fills the TxPD for AP tx packets.
+ *
+ * The Tx buffer received by this function should already have the
+ * header space allocated for TxPD.
+ *
+ * This function inserts the TxPD in between interface header and actual
+ * data and adjusts the buffer pointers accordingly.
+ *
+ * The following TxPD fields are set by this function, as required -
+ *      - BSS number
+ *      - Tx packet length and offset
+ *      - Priority
+ *      - Packet delay
+ *      - Priority specific Tx control
+ *      - Flags
+ */
+void *mwifiex_process_uap_txpd(struct mwifiex_private *priv,
+			       struct sk_buff *skb)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct uap_txpd *txpd;
+	struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb);
+	int pad, len;
+	u16 pkt_type;
+
+	if (!skb->len) {
+		dev_err(adapter->dev, "Tx: bad packet length: %d\n", skb->len);
+		tx_info->status_code = -1;
+		return skb->data;
+	}
+
+	pkt_type = mwifiex_is_skb_mgmt_frame(skb) ? PKT_TYPE_MGMT : 0;
+
+	/* If skb->data is not aligned, add padding */
+	pad = (4 - (((void *)skb->data - NULL) & 0x3)) % 4;
+
+	len = sizeof(*txpd) + pad;
+
+	BUG_ON(skb_headroom(skb) < len + INTF_HEADER_LEN);
+
+	skb_push(skb, len);
+
+	txpd = (struct uap_txpd *)skb->data;
+	memset(txpd, 0, sizeof(*txpd));
+	txpd->bss_num = priv->bss_num;
+	txpd->bss_type = priv->bss_type;
+	txpd->tx_pkt_length = cpu_to_le16((u16)(skb->len - len));
+
+	txpd->priority = (u8)skb->priority;
+	txpd->pkt_delay_2ms = mwifiex_wmm_compute_drv_pkt_delay(priv, skb);
+
+	if (txpd->priority < ARRAY_SIZE(priv->wmm.user_pri_pkt_tx_ctrl))
+		/*
+		 * Set the priority specific tx_control field, setting of 0 will
+		 * cause the default value to be used later in this function.
+		 */
+		txpd->tx_control =
+		    cpu_to_le32(priv->wmm.user_pri_pkt_tx_ctrl[txpd->priority]);
+
+	/* Offset of actual data */
+	if (pkt_type == PKT_TYPE_MGMT) {
+		/* Set the packet type and add header for management frame */
+		txpd->tx_pkt_type = cpu_to_le16(pkt_type);
+		len += MWIFIEX_MGMT_FRAME_HEADER_SIZE;
+	}
+
+	txpd->tx_pkt_offset = cpu_to_le16(len);
+
+	/* make space for INTF_HEADER_LEN */
+	skb_push(skb, INTF_HEADER_LEN);
+
+	if (!txpd->tx_control)
+		/* TxCtrl set by user or default */
+		txpd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl);
+
+	return skb->data;
+}
diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c
index 2864c74bdb6..ae88f80cf86 100644
--- a/drivers/net/wireless/mwifiex/util.c
+++ b/drivers/net/wireless/mwifiex/util.c
@@ -142,6 +142,46 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
 }
 
 /*
+ * This function processes the received management packet and send it
+ * to the kernel.
+ */
+int
+mwifiex_process_mgmt_packet(struct mwifiex_adapter *adapter,
+			    struct sk_buff *skb)
+{
+	struct rxpd *rx_pd;
+	struct mwifiex_private *priv;
+	u16 pkt_len;
+
+	if (!skb)
+		return -1;
+
+	rx_pd = (struct rxpd *)skb->data;
+	priv = mwifiex_get_priv_by_id(adapter, rx_pd->bss_num, rx_pd->bss_type);
+	if (!priv)
+		return -1;
+
+	skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset));
+	skb_pull(skb, sizeof(pkt_len));
+
+	pkt_len = le16_to_cpu(rx_pd->rx_pkt_length);
+
+	/* Remove address4 */
+	memmove(skb->data + sizeof(struct ieee80211_hdr_3addr),
+		skb->data + sizeof(struct ieee80211_hdr),
+		pkt_len - sizeof(struct ieee80211_hdr));
+
+	pkt_len -= ETH_ALEN + sizeof(pkt_len);
+	rx_pd->rx_pkt_length = cpu_to_le16(pkt_len);
+
+	cfg80211_rx_mgmt(priv->wdev, priv->roc_cfg.chan.center_freq,
+			 CAL_RSSI(rx_pd->snr, rx_pd->nf),
+			 skb->data, pkt_len, GFP_ATOMIC);
+
+	return 0;
+}
+
+/*
  * This function processes the received packet before sending it to the
  * kernel.
  *
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index 3fa4d417699..600d8194610 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -127,6 +127,29 @@ mwifiex_wmm_allocate_ralist_node(struct mwifiex_adapter *adapter, u8 *ra)
 	return ra_list;
 }
 
+/* This function returns random no between 16 and 32 to be used as threshold
+ * for no of packets after which BA setup is initiated.
+ */
+static u8 mwifiex_get_random_ba_threshold(void)
+{
+	u32 sec, usec;
+	struct timeval ba_tstamp;
+	u8 ba_threshold;
+
+	/* setup ba_packet_threshold here random number between
+	 * [BA_SETUP_PACKET_OFFSET,
+	 * BA_SETUP_PACKET_OFFSET+BA_SETUP_MAX_PACKET_THRESHOLD-1]
+	 */
+
+	do_gettimeofday(&ba_tstamp);
+	sec = (ba_tstamp.tv_sec & 0xFFFF) + (ba_tstamp.tv_sec >> 16);
+	usec = (ba_tstamp.tv_usec & 0xFFFF) + (ba_tstamp.tv_usec >> 16);
+	ba_threshold = (((sec << 16) + usec) % BA_SETUP_MAX_PACKET_THRESHOLD)
+						      + BA_SETUP_PACKET_OFFSET;
+
+	return ba_threshold;
+}
+
 /*
  * This function allocates and adds a RA list for all TIDs
  * with the given RA.
@@ -137,6 +160,12 @@ mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra)
 	int i;
 	struct mwifiex_ra_list_tbl *ra_list;
 	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_sta_node *node;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+	node = mwifiex_get_sta_entry(priv, ra);
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
 
 	for (i = 0; i < MAX_NUM_TID; ++i) {
 		ra_list = mwifiex_wmm_allocate_ralist_node(adapter, ra);
@@ -145,14 +174,24 @@ mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra)
 		if (!ra_list)
 			break;
 
-		if (!mwifiex_queuing_ra_based(priv))
+		ra_list->is_11n_enabled = 0;
+		if (!mwifiex_queuing_ra_based(priv)) {
 			ra_list->is_11n_enabled = IS_11N_ENABLED(priv);
-		else
-			ra_list->is_11n_enabled = false;
+		} else {
+			ra_list->is_11n_enabled =
+				      mwifiex_is_sta_11n_enabled(priv, node);
+			if (ra_list->is_11n_enabled)
+				ra_list->max_amsdu = node->max_amsdu;
+		}
 
 		dev_dbg(adapter->dev, "data: ralist %p: is_11n_enabled=%d\n",
 			ra_list, ra_list->is_11n_enabled);
 
+		if (ra_list->is_11n_enabled) {
+			ra_list->pkt_count = 0;
+			ra_list->ba_packet_thr =
+					      mwifiex_get_random_ba_threshold();
+		}
 		list_add_tail(&ra_list->list,
 			      &priv->wmm.tid_tbl_ptr[i].ra_list);
 
@@ -423,7 +462,7 @@ mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter)
 	for (i = 0; i < adapter->priv_num; ++i) {
 		priv = adapter->priv[i];
 		if (priv && atomic_read(&priv->wmm.tx_pkts_queued))
-				return false;
+			return false;
 	}
 
 	return true;
@@ -609,7 +648,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 	u8 ra[ETH_ALEN], tid_down;
 	unsigned long flags;
 
-	if (!priv->media_connected) {
+	if (!priv->media_connected && !mwifiex_is_skb_mgmt_frame(skb)) {
 		dev_dbg(adapter->dev, "data: drop packet in disconnect\n");
 		mwifiex_write_data_complete(adapter, skb, -1);
 		return;
@@ -624,7 +663,8 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 	/* In case of infra as we have already created the list during
 	   association we just don't have to call get_queue_raptr, we will
 	   have only 1 raptr for a tid in case of infra */
-	if (!mwifiex_queuing_ra_based(priv)) {
+	if (!mwifiex_queuing_ra_based(priv) &&
+	    !mwifiex_is_skb_mgmt_frame(skb)) {
 		if (!list_empty(&priv->wmm.tid_tbl_ptr[tid_down].ra_list))
 			ra_list = list_first_entry(
 				&priv->wmm.tid_tbl_ptr[tid_down].ra_list,
@@ -633,7 +673,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 			ra_list = NULL;
 	} else {
 		memcpy(ra, skb->data, ETH_ALEN);
-		if (ra[0] & 0x01)
+		if (ra[0] & 0x01 || mwifiex_is_skb_mgmt_frame(skb))
 			memset(ra, 0xff, ETH_ALEN);
 		ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, ra);
 	}
@@ -647,6 +687,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
 	skb_queue_tail(&ra_list->skb_head, skb);
 
 	ra_list->total_pkts_size += skb->len;
+	ra_list->pkt_count++;
 
 	atomic_inc(&priv->wmm.tx_pkts_queued);
 
@@ -867,17 +908,16 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
 		if (adapter->bss_prio_tbl[j].bss_prio_cur ==
 		    (struct mwifiex_bss_prio_node *)
 		    &adapter->bss_prio_tbl[j].bss_prio_head) {
-			bssprio_node =
+			adapter->bss_prio_tbl[j].bss_prio_cur =
 				list_first_entry(&adapter->bss_prio_tbl[j]
 						 .bss_prio_head,
 						 struct mwifiex_bss_prio_node,
 						 list);
-			bssprio_head = bssprio_node;
-		} else {
-			bssprio_node = adapter->bss_prio_tbl[j].bss_prio_cur;
-			bssprio_head = bssprio_node;
 		}
 
+		bssprio_node = adapter->bss_prio_tbl[j].bss_prio_cur;
+		bssprio_head = bssprio_node;
+
 		do {
 			priv_tmp = bssprio_node->priv;
 			hqp = &priv_tmp->wmm.highest_queued_prio;
@@ -986,10 +1026,17 @@ mwifiex_is_11n_aggragation_possible(struct mwifiex_private *priv,
 {
 	int count = 0, total_size = 0;
 	struct sk_buff *skb, *tmp;
+	int max_amsdu_size;
+
+	if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP && priv->ap_11n_enabled &&
+	    ptr->is_11n_enabled)
+		max_amsdu_size = min_t(int, ptr->max_amsdu, max_buf_size);
+	else
+		max_amsdu_size = max_buf_size;
 
 	skb_queue_walk_safe(&ptr->skb_head, skb, tmp) {
 		total_size += skb->len;
-		if (total_size >= max_buf_size)
+		if (total_size >= max_amsdu_size)
 			break;
 		if (++count >= MIN_NUM_AMSDU)
 			return true;
@@ -1050,6 +1097,7 @@ mwifiex_send_single_packet(struct mwifiex_private *priv,
 		skb_queue_tail(&ptr->skb_head, skb);
 
 		ptr->total_pkts_size += skb->len;
+		ptr->pkt_count++;
 		tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT;
 		spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
 				       ra_list_flags);
@@ -1231,7 +1279,8 @@ mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter)
 		/* ra_list_spinlock has been freed in
 		   mwifiex_send_single_packet() */
 	} else {
-		if (mwifiex_is_ampdu_allowed(priv, tid)) {
+		if (mwifiex_is_ampdu_allowed(priv, tid) &&
+		    ptr->pkt_count > ptr->ba_packet_thr) {
 			if (mwifiex_space_avail_for_new_ba_stream(adapter)) {
 				mwifiex_create_ba_tbl(priv, ptr->ra, tid,
 						      BA_SETUP_INPROGRESS);
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 224e03ade14..5099e5375cb 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -1830,12 +1830,14 @@ static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
 }
 
 static void
-mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
+mwl8k_txq_xmit(struct ieee80211_hw *hw,
+	       int index,
+	       struct ieee80211_sta *sta,
+	       struct sk_buff *skb)
 {
 	struct mwl8k_priv *priv = hw->priv;
 	struct ieee80211_tx_info *tx_info;
 	struct mwl8k_vif *mwl8k_vif;
-	struct ieee80211_sta *sta;
 	struct ieee80211_hdr *wh;
 	struct mwl8k_tx_queue *txq;
 	struct mwl8k_tx_desc *tx;
@@ -1867,7 +1869,6 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
 	wh = &((struct mwl8k_dma_data *)skb->data)->wh;
 
 	tx_info = IEEE80211_SKB_CB(skb);
-	sta = tx_info->control.sta;
 	mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
 
 	if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
@@ -2019,8 +2020,8 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
 	tx->pkt_phys_addr = cpu_to_le32(dma);
 	tx->pkt_len = cpu_to_le16(skb->len);
 	tx->rate_info = 0;
-	if (!priv->ap_fw && tx_info->control.sta != NULL)
-		tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id;
+	if (!priv->ap_fw && sta != NULL)
+		tx->peer_id = MWL8K_STA(sta)->peer_id;
 	else
 		tx->peer_id = 0;
 
@@ -4364,7 +4365,9 @@ static void mwl8k_rx_poll(unsigned long data)
 /*
  * Core driver operations.
  */
-static void mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void mwl8k_tx(struct ieee80211_hw *hw,
+		     struct ieee80211_tx_control *control,
+		     struct sk_buff *skb)
 {
 	struct mwl8k_priv *priv = hw->priv;
 	int index = skb_get_queue_mapping(skb);
@@ -4376,7 +4379,7 @@ static void mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 		return;
 	}
 
-	mwl8k_txq_xmit(hw, index, skb);
+	mwl8k_txq_xmit(hw, index, control->sta, skb);
 }
 
 static int mwl8k_start(struct ieee80211_hw *hw)
diff --git a/drivers/net/wireless/orinoco/wext.c b/drivers/net/wireless/orinoco/wext.c
index 33747e131a9..3b5508f982e 100644
--- a/drivers/net/wireless/orinoco/wext.c
+++ b/drivers/net/wireless/orinoco/wext.c
@@ -7,6 +7,7 @@
 #include <linux/if_arp.h>
 #include <linux/wireless.h>
 #include <linux/ieee80211.h>
+#include <linux/etherdevice.h>
 #include <net/iw_handler.h>
 #include <net/cfg80211.h>
 #include <net/cfg80211-wext.h>
@@ -159,15 +160,13 @@ static int orinoco_ioctl_setwap(struct net_device *dev,
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = -EINPROGRESS;		/* Call commit handler */
 	unsigned long flags;
-	static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-	static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
 	if (orinoco_lock(priv, &flags) != 0)
 		return -EBUSY;
 
 	/* Enable automatic roaming - no sanity checks are needed */
-	if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
-	    memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
+	if (is_zero_ether_addr(ap_addr->sa_data) ||
+	    is_broadcast_ether_addr(ap_addr->sa_data)) {
 		priv->bssid_fixed = 0;
 		memset(priv->desired_bssid, 0, ETH_ALEN);
 
diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c
index 14037092ba8..1ef1bfe6a9d 100644
--- a/drivers/net/wireless/p54/eeprom.c
+++ b/drivers/net/wireless/p54/eeprom.c
@@ -76,6 +76,7 @@ struct p54_channel_entry {
 	u16 freq;
 	u16 data;
 	int index;
+	int max_power;
 	enum ieee80211_band band;
 };
 
@@ -173,6 +174,7 @@ static int p54_generate_band(struct ieee80211_hw *dev,
 	for (i = 0, j = 0; (j < list->band_channel_num[band]) &&
 			   (i < list->entries); i++) {
 		struct p54_channel_entry *chan = &list->channels[i];
+		struct ieee80211_channel *dest = &tmp->channels[j];
 
 		if (chan->band != band)
 			continue;
@@ -190,14 +192,15 @@ static int p54_generate_band(struct ieee80211_hw *dev,
 			continue;
 		}
 
-		tmp->channels[j].band = chan->band;
-		tmp->channels[j].center_freq = chan->freq;
+		dest->band = chan->band;
+		dest->center_freq = chan->freq;
+		dest->max_power = chan->max_power;
 		priv->survey[*chan_num].channel = &tmp->channels[j];
 		priv->survey[*chan_num].filled = SURVEY_INFO_NOISE_DBM |
 			SURVEY_INFO_CHANNEL_TIME |
 			SURVEY_INFO_CHANNEL_TIME_BUSY |
 			SURVEY_INFO_CHANNEL_TIME_TX;
-		tmp->channels[j].hw_value = (*chan_num);
+		dest->hw_value = (*chan_num);
 		j++;
 		(*chan_num)++;
 	}
@@ -229,10 +232,11 @@ err_out:
 	return ret;
 }
 
-static void p54_update_channel_param(struct p54_channel_list *list,
-				     u16 freq, u16 data)
+static struct p54_channel_entry *p54_update_channel_param(struct p54_channel_list *list,
+							  u16 freq, u16 data)
 {
-	int band, i;
+	int i;
+	struct p54_channel_entry *entry = NULL;
 
 	/*
 	 * usually all lists in the eeprom are mostly sorted.
@@ -241,30 +245,78 @@ static void p54_update_channel_param(struct p54_channel_list *list,
 	 */
 	for (i = list->entries; i >= 0; i--) {
 		if (freq == list->channels[i].freq) {
-			list->channels[i].data |= data;
+			entry = &list->channels[i];
 			break;
 		}
 	}
 
 	if ((i < 0) && (list->entries < list->max_entries)) {
 		/* entry does not exist yet. Initialize a new one. */
-		band = p54_get_band_from_freq(freq);
+		int band = p54_get_band_from_freq(freq);
 
 		/*
 		 * filter out frequencies which don't belong into
 		 * any supported band.
 		 */
-		if (band < 0)
-			return ;
+		if (band >= 0) {
+			i = list->entries++;
+			list->band_channel_num[band]++;
+
+			entry = &list->channels[i];
+			entry->freq = freq;
+			entry->band = band;
+			entry->index = ieee80211_frequency_to_channel(freq);
+			entry->max_power = 0;
+			entry->data = 0;
+		}
+	}
 
-		i = list->entries++;
-		list->band_channel_num[band]++;
+	if (entry)
+		entry->data |= data;
 
-		list->channels[i].freq = freq;
-		list->channels[i].data = data;
-		list->channels[i].band = band;
-		list->channels[i].index = ieee80211_frequency_to_channel(freq);
-		/* TODO: parse output_limit and fill max_power */
+	return entry;
+}
+
+static int p54_get_maxpower(struct p54_common *priv, void *data)
+{
+	switch (priv->rxhw & PDR_SYNTH_FRONTEND_MASK) {
+	case PDR_SYNTH_FRONTEND_LONGBOW: {
+		struct pda_channel_output_limit_longbow *pda = data;
+		int j;
+		u16 rawpower = 0;
+		pda = data;
+		for (j = 0; j < ARRAY_SIZE(pda->point); j++) {
+			struct pda_channel_output_limit_point_longbow *point =
+				&pda->point[j];
+			rawpower = max_t(u16,
+				rawpower, le16_to_cpu(point->val_qpsk));
+			rawpower = max_t(u16,
+				rawpower, le16_to_cpu(point->val_bpsk));
+			rawpower = max_t(u16,
+				rawpower, le16_to_cpu(point->val_16qam));
+			rawpower = max_t(u16,
+				rawpower, le16_to_cpu(point->val_64qam));
+		}
+		/* longbow seems to use 1/16 dBm units */
+		return rawpower / 16;
+		}
+
+	case PDR_SYNTH_FRONTEND_DUETTE3:
+	case PDR_SYNTH_FRONTEND_DUETTE2:
+	case PDR_SYNTH_FRONTEND_FRISBEE:
+	case PDR_SYNTH_FRONTEND_XBOW: {
+		struct pda_channel_output_limit *pda = data;
+		u8 rawpower = 0;
+		rawpower = max(rawpower, pda->val_qpsk);
+		rawpower = max(rawpower, pda->val_bpsk);
+		rawpower = max(rawpower, pda->val_16qam);
+		rawpower = max(rawpower, pda->val_64qam);
+		/* raw values are in 1/4 dBm units */
+		return rawpower / 4;
+		}
+
+	default:
+		return 20;
 	}
 }
 
@@ -315,12 +367,19 @@ static int p54_generate_channel_lists(struct ieee80211_hw *dev)
 		}
 
 		if (i < priv->output_limit->entries) {
-			freq = le16_to_cpup((__le16 *) (i *
-					    priv->output_limit->entry_size +
-					    priv->output_limit->offset +
-					    priv->output_limit->data));
-
-			p54_update_channel_param(list, freq, CHAN_HAS_LIMIT);
+			struct p54_channel_entry *tmp;
+
+			void *data = (void *) ((unsigned long) i *
+				priv->output_limit->entry_size +
+				priv->output_limit->offset +
+				priv->output_limit->data);
+
+			freq = le16_to_cpup((__le16 *) data);
+			tmp = p54_update_channel_param(list, freq,
+						       CHAN_HAS_LIMIT);
+			if (tmp) {
+				tmp->max_power = p54_get_maxpower(priv, data);
+			}
 		}
 
 		if (i < priv->curve_data->entries) {
@@ -834,11 +893,12 @@ good_eeprom:
 		goto err;
 	}
 
+	priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
+
 	err = p54_generate_channel_lists(dev);
 	if (err)
 		goto err;
 
-	priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
 	if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW)
 		p54_init_xbow_synth(priv);
 	if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
diff --git a/drivers/net/wireless/p54/eeprom.h b/drivers/net/wireless/p54/eeprom.h
index afde72b8460..20ebe39a3f4 100644
--- a/drivers/net/wireless/p54/eeprom.h
+++ b/drivers/net/wireless/p54/eeprom.h
@@ -57,6 +57,18 @@ struct pda_channel_output_limit {
 	u8 rate_set_size;
 } __packed;
 
+struct pda_channel_output_limit_point_longbow {
+	__le16 val_bpsk;
+	__le16 val_qpsk;
+	__le16 val_16qam;
+	__le16 val_64qam;
+} __packed;
+
+struct pda_channel_output_limit_longbow {
+	__le16 freq;
+	struct pda_channel_output_limit_point_longbow point[3];
+} __packed;
+
 struct pda_pa_curve_data_sample_rev0 {
 	u8 rf_power;
 	u8 pa_detector;
diff --git a/drivers/net/wireless/p54/lmac.h b/drivers/net/wireless/p54/lmac.h
index 3d8d622bec5..de1d46bf97d 100644
--- a/drivers/net/wireless/p54/lmac.h
+++ b/drivers/net/wireless/p54/lmac.h
@@ -526,7 +526,9 @@ int p54_init_leds(struct p54_common *priv);
 void p54_unregister_leds(struct p54_common *priv);
 
 /* xmit functions */
-void p54_tx_80211(struct ieee80211_hw *dev, struct sk_buff *skb);
+void p54_tx_80211(struct ieee80211_hw *dev,
+		  struct ieee80211_tx_control *control,
+		  struct sk_buff *skb);
 int p54_tx_cancel(struct p54_common *priv, __le32 req_id);
 void p54_tx(struct p54_common *priv, struct sk_buff *skb);
 
diff --git a/drivers/net/wireless/p54/main.c b/drivers/net/wireless/p54/main.c
index 7cffea795ad..aadda99989c 100644
--- a/drivers/net/wireless/p54/main.c
+++ b/drivers/net/wireless/p54/main.c
@@ -139,6 +139,7 @@ static int p54_beacon_format_ie_tim(struct sk_buff *skb)
 static int p54_beacon_update(struct p54_common *priv,
 			struct ieee80211_vif *vif)
 {
+	struct ieee80211_tx_control control = { };
 	struct sk_buff *beacon;
 	int ret;
 
@@ -158,7 +159,7 @@ static int p54_beacon_update(struct p54_common *priv,
 	 * to cancel the old beacon template by hand, instead the firmware
 	 * will release the previous one through the feedback mechanism.
 	 */
-	p54_tx_80211(priv->hw, beacon);
+	p54_tx_80211(priv->hw, &control, beacon);
 	priv->tsf_high32 = 0;
 	priv->tsf_low32 = 0;
 
@@ -514,6 +515,17 @@ static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
 	if (modparam_nohwcrypt)
 		return -EOPNOTSUPP;
 
+	if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
+		/*
+		 * Unfortunately most/all firmwares are trying to decrypt
+		 * incoming management frames if a suitable key can be found.
+		 * However, in doing so the data in these frames gets
+		 * corrupted. So, we can't have firmware supported crypto
+		 * offload in this case.
+		 */
+		return -EOPNOTSUPP;
+	}
+
 	mutex_lock(&priv->conf_mutex);
 	if (cmd == SET_KEY) {
 		switch (key->cipher) {
@@ -737,6 +749,7 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 		     IEEE80211_HW_SIGNAL_DBM |
 		     IEEE80211_HW_SUPPORTS_PS |
 		     IEEE80211_HW_PS_NULLFUNC_STACK |
+		     IEEE80211_HW_MFP_CAPABLE |
 		     IEEE80211_HW_REPORTS_TX_ACK_STATUS;
 
 	dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index 89318adc8c7..b4390797d78 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -488,6 +488,58 @@ static int p54p_open(struct ieee80211_hw *dev)
 	return 0;
 }
 
+static void p54p_firmware_step2(const struct firmware *fw,
+				void *context)
+{
+	struct p54p_priv *priv = context;
+	struct ieee80211_hw *dev = priv->common.hw;
+	struct pci_dev *pdev = priv->pdev;
+	int err;
+
+	if (!fw) {
+		dev_err(&pdev->dev, "Cannot find firmware (isl3886pci)\n");
+		err = -ENOENT;
+		goto out;
+	}
+
+	priv->firmware = fw;
+
+	err = p54p_open(dev);
+	if (err)
+		goto out;
+	err = p54_read_eeprom(dev);
+	p54p_stop(dev);
+	if (err)
+		goto out;
+
+	err = p54_register_common(dev, &pdev->dev);
+	if (err)
+		goto out;
+
+out:
+
+	complete(&priv->fw_loaded);
+
+	if (err) {
+		struct device *parent = pdev->dev.parent;
+
+		if (parent)
+			device_lock(parent);
+
+		/*
+		 * This will indirectly result in a call to p54p_remove.
+		 * Hence, we don't need to bother with freeing any
+		 * allocated ressources at all.
+		 */
+		device_release_driver(&pdev->dev);
+
+		if (parent)
+			device_unlock(parent);
+	}
+
+	pci_dev_put(pdev);
+}
+
 static int __devinit p54p_probe(struct pci_dev *pdev,
 				const struct pci_device_id *id)
 {
@@ -496,6 +548,7 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
 	unsigned long mem_addr, mem_len;
 	int err;
 
+	pci_dev_get(pdev);
 	err = pci_enable_device(pdev);
 	if (err) {
 		dev_err(&pdev->dev, "Cannot enable new PCI device\n");
@@ -537,6 +590,7 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
 	priv = dev->priv;
 	priv->pdev = pdev;
 
+	init_completion(&priv->fw_loaded);
 	SET_IEEE80211_DEV(dev, &pdev->dev);
 	pci_set_drvdata(pdev, dev);
 
@@ -561,32 +615,12 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
 	spin_lock_init(&priv->lock);
 	tasklet_init(&priv->tasklet, p54p_tasklet, (unsigned long)dev);
 
-	err = request_firmware(&priv->firmware, "isl3886pci",
-			       &priv->pdev->dev);
-	if (err) {
-		dev_err(&pdev->dev, "Cannot find firmware (isl3886pci)\n");
-		err = request_firmware(&priv->firmware, "isl3886",
-				       &priv->pdev->dev);
-		if (err)
-			goto err_free_common;
-	}
-
-	err = p54p_open(dev);
-	if (err)
-		goto err_free_common;
-	err = p54_read_eeprom(dev);
-	p54p_stop(dev);
-	if (err)
-		goto err_free_common;
-
-	err = p54_register_common(dev, &pdev->dev);
-	if (err)
-		goto err_free_common;
-
-	return 0;
+	err = request_firmware_nowait(THIS_MODULE, 1, "isl3886pci",
+				      &priv->pdev->dev, GFP_KERNEL,
+				      priv, p54p_firmware_step2);
+	if (!err)
+		return 0;
 
- err_free_common:
-	release_firmware(priv->firmware);
 	pci_free_consistent(pdev, sizeof(*priv->ring_control),
 			    priv->ring_control, priv->ring_control_dma);
 
@@ -601,6 +635,7 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
 	pci_release_regions(pdev);
  err_disable_dev:
 	pci_disable_device(pdev);
+	pci_dev_put(pdev);
 	return err;
 }
 
@@ -612,8 +647,9 @@ static void __devexit p54p_remove(struct pci_dev *pdev)
 	if (!dev)
 		return;
 
-	p54_unregister_common(dev);
 	priv = dev->priv;
+	wait_for_completion(&priv->fw_loaded);
+	p54_unregister_common(dev);
 	release_firmware(priv->firmware);
 	pci_free_consistent(pdev, sizeof(*priv->ring_control),
 			    priv->ring_control, priv->ring_control_dma);
diff --git a/drivers/net/wireless/p54/p54pci.h b/drivers/net/wireless/p54/p54pci.h
index 7aa509f7e38..68405c142f9 100644
--- a/drivers/net/wireless/p54/p54pci.h
+++ b/drivers/net/wireless/p54/p54pci.h
@@ -105,6 +105,7 @@ struct p54p_priv {
 	struct sk_buff *tx_buf_data[32];
 	struct sk_buff *tx_buf_mgmt[4];
 	struct completion boot_comp;
+	struct completion fw_loaded;
 };
 
 #endif /* P54USB_H */
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
index 7f207b6e955..effb044a8a9 100644
--- a/drivers/net/wireless/p54/p54usb.c
+++ b/drivers/net/wireless/p54/p54usb.c
@@ -42,7 +42,7 @@ MODULE_FIRMWARE("isl3887usb");
  * whenever you add a new device.
  */
 
-static struct usb_device_id p54u_table[] __devinitdata = {
+static struct usb_device_id p54u_table[] = {
 	/* Version 1 devices (pci chip + net2280) */
 	{USB_DEVICE(0x0411, 0x0050)},	/* Buffalo WLI2-USB2-G54 */
 	{USB_DEVICE(0x045e, 0x00c2)},	/* Microsoft MN-710 */
diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c
index f38786e0262..5861e13a6fd 100644
--- a/drivers/net/wireless/p54/txrx.c
+++ b/drivers/net/wireless/p54/txrx.c
@@ -676,8 +676,9 @@ int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb)
 EXPORT_SYMBOL_GPL(p54_rx);
 
 static void p54_tx_80211_header(struct p54_common *priv, struct sk_buff *skb,
-				struct ieee80211_tx_info *info, u8 *queue,
-				u32 *extra_len, u16 *flags, u16 *aid,
+				struct ieee80211_tx_info *info,
+				struct ieee80211_sta *sta,
+				u8 *queue, u32 *extra_len, u16 *flags, u16 *aid,
 				bool *burst_possible)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
@@ -746,8 +747,8 @@ static void p54_tx_80211_header(struct p54_common *priv, struct sk_buff *skb,
 			}
 		}
 
-		if (info->control.sta)
-			*aid = info->control.sta->aid;
+		if (sta)
+			*aid = sta->aid;
 		break;
 	}
 }
@@ -767,7 +768,9 @@ static u8 p54_convert_algo(u32 cipher)
 	}
 }
 
-void p54_tx_80211(struct ieee80211_hw *dev, struct sk_buff *skb)
+void p54_tx_80211(struct ieee80211_hw *dev,
+		  struct ieee80211_tx_control *control,
+		  struct sk_buff *skb)
 {
 	struct p54_common *priv = dev->priv;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -784,7 +787,7 @@ void p54_tx_80211(struct ieee80211_hw *dev, struct sk_buff *skb)
 	u8 nrates = 0, nremaining = 8;
 	bool burst_allowed = false;
 
-	p54_tx_80211_header(priv, skb, info, &queue, &extra_len,
+	p54_tx_80211_header(priv, skb, info, control->sta, &queue, &extra_len,
 			    &hdr_flags, &aid, &burst_allowed);
 
 	if (p54_tx_qos_accounting_alloc(priv, skb, queue)) {
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 241162e8111..bd1f0cb5608 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -1803,6 +1803,7 @@ static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
 						struct cfg80211_pmksa *pmksa,
 						int max_pmkids)
 {
+	struct ndis_80211_pmkid *new_pmkids;
 	int i, err, newlen;
 	unsigned int count;
 
@@ -1833,11 +1834,12 @@ static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
 	/* add new pmkid */
 	newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
 
-	pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
-	if (!pmkids) {
+	new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
+	if (!new_pmkids) {
 		err = -ENOMEM;
 		goto error;
 	}
+	pmkids = new_pmkids;
 
 	pmkids->length = cpu_to_le32(newlen);
 	pmkids->bssid_info_count = cpu_to_le32(count + 1);
@@ -1957,9 +1959,6 @@ static int rndis_scan(struct wiphy *wiphy,
 	 */
 	rndis_check_bssid_list(usbdev, NULL, NULL);
 
-	if (!request)
-		return -EINVAL;
-
 	if (priv->scan_request && priv->scan_request != request)
 		return -EBUSY;
 
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 8b9dbd76a25..e3a2d9070cf 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -205,7 +205,7 @@ static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 	u32 reg;
 
 	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
-	return rt2x00_get_field32(reg, GPIOCSR_BIT0);
+	return rt2x00_get_field32(reg, GPIOCSR_VAL0);
 }
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
@@ -1611,6 +1611,7 @@ static int rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
+	u32 reg;
 
 	/*
 	 * Allocate eeprom data.
@@ -1624,6 +1625,14 @@ static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev)
 		return retval;
 
 	/*
+	 * Enable rfkill polling by setting GPIO direction of the
+	 * rfkill switch GPIO pin correctly.
+	 */
+	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
+	rt2x00_set_field32(&reg, GPIOCSR_DIR0, 1);
+	rt2x00pci_register_write(rt2x00dev, GPIOCSR, reg);
+
+	/*
 	 * Initialize hw specifications.
 	 */
 	retval = rt2400pci_probe_hw_mode(rt2x00dev);
@@ -1780,7 +1789,6 @@ static const struct data_queue_desc rt2400pci_queue_atim = {
 
 static const struct rt2x00_ops rt2400pci_ops = {
 	.name			= KBUILD_MODNAME,
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 1,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.h b/drivers/net/wireless/rt2x00/rt2400pci.h
index d3a4a68cc43..e4b07f0aa3c 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.h
+++ b/drivers/net/wireless/rt2x00/rt2400pci.h
@@ -660,16 +660,26 @@
 
 /*
  * GPIOCSR: GPIO control register.
+ *	GPIOCSR_VALx: Actual GPIO pin x value
+ *	GPIOCSR_DIRx: GPIO direction: 0 = output; 1 = input
  */
 #define GPIOCSR				0x0120
-#define GPIOCSR_BIT0			FIELD32(0x00000001)
-#define GPIOCSR_BIT1			FIELD32(0x00000002)
-#define GPIOCSR_BIT2			FIELD32(0x00000004)
-#define GPIOCSR_BIT3			FIELD32(0x00000008)
-#define GPIOCSR_BIT4			FIELD32(0x00000010)
-#define GPIOCSR_BIT5			FIELD32(0x00000020)
-#define GPIOCSR_BIT6			FIELD32(0x00000040)
-#define GPIOCSR_BIT7			FIELD32(0x00000080)
+#define GPIOCSR_VAL0			FIELD32(0x00000001)
+#define GPIOCSR_VAL1			FIELD32(0x00000002)
+#define GPIOCSR_VAL2			FIELD32(0x00000004)
+#define GPIOCSR_VAL3			FIELD32(0x00000008)
+#define GPIOCSR_VAL4			FIELD32(0x00000010)
+#define GPIOCSR_VAL5			FIELD32(0x00000020)
+#define GPIOCSR_VAL6			FIELD32(0x00000040)
+#define GPIOCSR_VAL7			FIELD32(0x00000080)
+#define GPIOCSR_DIR0			FIELD32(0x00000100)
+#define GPIOCSR_DIR1			FIELD32(0x00000200)
+#define GPIOCSR_DIR2			FIELD32(0x00000400)
+#define GPIOCSR_DIR3			FIELD32(0x00000800)
+#define GPIOCSR_DIR4			FIELD32(0x00001000)
+#define GPIOCSR_DIR5			FIELD32(0x00002000)
+#define GPIOCSR_DIR6			FIELD32(0x00004000)
+#define GPIOCSR_DIR7			FIELD32(0x00008000)
 
 /*
  * BBPPCSR: BBP Pin control register.
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index d2cf8a4bc8b..479d756e275 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -205,7 +205,7 @@ static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 	u32 reg;
 
 	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
-	return rt2x00_get_field32(reg, GPIOCSR_BIT0);
+	return rt2x00_get_field32(reg, GPIOCSR_VAL0);
 }
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
@@ -1929,6 +1929,7 @@ static int rt2500pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
+	u32 reg;
 
 	/*
 	 * Allocate eeprom data.
@@ -1942,6 +1943,14 @@ static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev)
 		return retval;
 
 	/*
+	 * Enable rfkill polling by setting GPIO direction of the
+	 * rfkill switch GPIO pin correctly.
+	 */
+	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
+	rt2x00_set_field32(&reg, GPIOCSR_DIR0, 1);
+	rt2x00pci_register_write(rt2x00dev, GPIOCSR, reg);
+
+	/*
 	 * Initialize hw specifications.
 	 */
 	retval = rt2500pci_probe_hw_mode(rt2x00dev);
@@ -2072,7 +2081,6 @@ static const struct data_queue_desc rt2500pci_queue_atim = {
 
 static const struct rt2x00_ops rt2500pci_ops = {
 	.name			= KBUILD_MODNAME,
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 1,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.h b/drivers/net/wireless/rt2x00/rt2500pci.h
index 2aad7ba8a10..9c10068e498 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.h
+++ b/drivers/net/wireless/rt2x00/rt2500pci.h
@@ -789,16 +789,18 @@
 
 /*
  * GPIOCSR: GPIO control register.
+ *	GPIOCSR_VALx: GPIO value
+ *	GPIOCSR_DIRx: GPIO direction: 0 = output; 1 = input
  */
 #define GPIOCSR				0x0120
-#define GPIOCSR_BIT0			FIELD32(0x00000001)
-#define GPIOCSR_BIT1			FIELD32(0x00000002)
-#define GPIOCSR_BIT2			FIELD32(0x00000004)
-#define GPIOCSR_BIT3			FIELD32(0x00000008)
-#define GPIOCSR_BIT4			FIELD32(0x00000010)
-#define GPIOCSR_BIT5			FIELD32(0x00000020)
-#define GPIOCSR_BIT6			FIELD32(0x00000040)
-#define GPIOCSR_BIT7			FIELD32(0x00000080)
+#define GPIOCSR_VAL0			FIELD32(0x00000001)
+#define GPIOCSR_VAL1			FIELD32(0x00000002)
+#define GPIOCSR_VAL2			FIELD32(0x00000004)
+#define GPIOCSR_VAL3			FIELD32(0x00000008)
+#define GPIOCSR_VAL4			FIELD32(0x00000010)
+#define GPIOCSR_VAL5			FIELD32(0x00000020)
+#define GPIOCSR_VAL6			FIELD32(0x00000040)
+#define GPIOCSR_VAL7			FIELD32(0x00000080)
 #define GPIOCSR_DIR0			FIELD32(0x00000100)
 #define GPIOCSR_DIR1			FIELD32(0x00000200)
 #define GPIOCSR_DIR2			FIELD32(0x00000400)
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 3aae36bb0a9..a12e84f892b 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -283,7 +283,7 @@ static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 	u16 reg;
 
 	rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
-	return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
+	return rt2x00_get_field16(reg, MAC_CSR19_VAL7);
 }
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
@@ -1768,6 +1768,7 @@ static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
+	u16 reg;
 
 	/*
 	 * Allocate eeprom data.
@@ -1781,6 +1782,14 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
 		return retval;
 
 	/*
+	 * Enable rfkill polling by setting GPIO direction of the
+	 * rfkill switch GPIO pin correctly.
+	 */
+	rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
+	rt2x00_set_field16(&reg, MAC_CSR19_DIR0, 0);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR19, reg);
+
+	/*
 	 * Initialize hw specifications.
 	 */
 	retval = rt2500usb_probe_hw_mode(rt2x00dev);
@@ -1887,7 +1896,6 @@ static const struct data_queue_desc rt2500usb_queue_atim = {
 
 static const struct rt2x00_ops rt2500usb_ops = {
 	.name			= KBUILD_MODNAME,
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 1,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.h b/drivers/net/wireless/rt2x00/rt2500usb.h
index b493306a7ee..1b91a4cef96 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.h
+++ b/drivers/net/wireless/rt2x00/rt2500usb.h
@@ -187,16 +187,26 @@
 
 /*
  * MAC_CSR19: GPIO control register.
+ *	MAC_CSR19_VALx: GPIO value
+ *	MAC_CSR19_DIRx: GPIO direction: 0 = input; 1 = output
  */
 #define MAC_CSR19			0x0426
-#define MAC_CSR19_BIT0			FIELD32(0x0001)
-#define MAC_CSR19_BIT1			FIELD32(0x0002)
-#define MAC_CSR19_BIT2			FIELD32(0x0004)
-#define MAC_CSR19_BIT3			FIELD32(0x0008)
-#define MAC_CSR19_BIT4			FIELD32(0x0010)
-#define MAC_CSR19_BIT5			FIELD32(0x0020)
-#define MAC_CSR19_BIT6			FIELD32(0x0040)
-#define MAC_CSR19_BIT7			FIELD32(0x0080)
+#define MAC_CSR19_VAL0			FIELD16(0x0001)
+#define MAC_CSR19_VAL1			FIELD16(0x0002)
+#define MAC_CSR19_VAL2			FIELD16(0x0004)
+#define MAC_CSR19_VAL3			FIELD16(0x0008)
+#define MAC_CSR19_VAL4			FIELD16(0x0010)
+#define MAC_CSR19_VAL5			FIELD16(0x0020)
+#define MAC_CSR19_VAL6			FIELD16(0x0040)
+#define MAC_CSR19_VAL7			FIELD16(0x0080)
+#define MAC_CSR19_DIR0			FIELD16(0x0100)
+#define MAC_CSR19_DIR1			FIELD16(0x0200)
+#define MAC_CSR19_DIR2			FIELD16(0x0400)
+#define MAC_CSR19_DIR3			FIELD16(0x0800)
+#define MAC_CSR19_DIR4			FIELD16(0x1000)
+#define MAC_CSR19_DIR5			FIELD16(0x2000)
+#define MAC_CSR19_DIR6			FIELD16(0x4000)
+#define MAC_CSR19_DIR7			FIELD16(0x8000)
 
 /*
  * MAC_CSR20: LED control register.
diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index e252e9bafd0..6d67c3ede65 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -439,26 +439,33 @@
 #define WMM_TXOP1_CFG_AC3TXOP		FIELD32(0xffff0000)
 
 /*
- * GPIO_CTRL_CFG:
- * GPIOD: GPIO direction, 0: Output, 1: Input
- */
-#define GPIO_CTRL_CFG			0x0228
-#define GPIO_CTRL_CFG_BIT0		FIELD32(0x00000001)
-#define GPIO_CTRL_CFG_BIT1		FIELD32(0x00000002)
-#define GPIO_CTRL_CFG_BIT2		FIELD32(0x00000004)
-#define GPIO_CTRL_CFG_BIT3		FIELD32(0x00000008)
-#define GPIO_CTRL_CFG_BIT4		FIELD32(0x00000010)
-#define GPIO_CTRL_CFG_BIT5		FIELD32(0x00000020)
-#define GPIO_CTRL_CFG_BIT6		FIELD32(0x00000040)
-#define GPIO_CTRL_CFG_BIT7		FIELD32(0x00000080)
-#define GPIO_CTRL_CFG_GPIOD_BIT0	FIELD32(0x00000100)
-#define GPIO_CTRL_CFG_GPIOD_BIT1	FIELD32(0x00000200)
-#define GPIO_CTRL_CFG_GPIOD_BIT2	FIELD32(0x00000400)
-#define GPIO_CTRL_CFG_GPIOD_BIT3	FIELD32(0x00000800)
-#define GPIO_CTRL_CFG_GPIOD_BIT4	FIELD32(0x00001000)
-#define GPIO_CTRL_CFG_GPIOD_BIT5	FIELD32(0x00002000)
-#define GPIO_CTRL_CFG_GPIOD_BIT6	FIELD32(0x00004000)
-#define GPIO_CTRL_CFG_GPIOD_BIT7	FIELD32(0x00008000)
+ * GPIO_CTRL:
+ *	GPIO_CTRL_VALx: GPIO value
+ *	GPIO_CTRL_DIRx: GPIO direction: 0 = output; 1 = input
+ */
+#define GPIO_CTRL			0x0228
+#define GPIO_CTRL_VAL0			FIELD32(0x00000001)
+#define GPIO_CTRL_VAL1			FIELD32(0x00000002)
+#define GPIO_CTRL_VAL2			FIELD32(0x00000004)
+#define GPIO_CTRL_VAL3			FIELD32(0x00000008)
+#define GPIO_CTRL_VAL4			FIELD32(0x00000010)
+#define GPIO_CTRL_VAL5			FIELD32(0x00000020)
+#define GPIO_CTRL_VAL6			FIELD32(0x00000040)
+#define GPIO_CTRL_VAL7			FIELD32(0x00000080)
+#define GPIO_CTRL_DIR0			FIELD32(0x00000100)
+#define GPIO_CTRL_DIR1			FIELD32(0x00000200)
+#define GPIO_CTRL_DIR2			FIELD32(0x00000400)
+#define GPIO_CTRL_DIR3			FIELD32(0x00000800)
+#define GPIO_CTRL_DIR4			FIELD32(0x00001000)
+#define GPIO_CTRL_DIR5			FIELD32(0x00002000)
+#define GPIO_CTRL_DIR6			FIELD32(0x00004000)
+#define GPIO_CTRL_DIR7			FIELD32(0x00008000)
+#define GPIO_CTRL_VAL8			FIELD32(0x00010000)
+#define GPIO_CTRL_VAL9			FIELD32(0x00020000)
+#define GPIO_CTRL_VAL10			FIELD32(0x00040000)
+#define GPIO_CTRL_DIR8			FIELD32(0x01000000)
+#define GPIO_CTRL_DIR9			FIELD32(0x02000000)
+#define GPIO_CTRL_DIR10			FIELD32(0x04000000)
 
 /*
  * MCU_CMD_CFG
@@ -1936,6 +1943,11 @@ struct mac_iveiv_entry {
 #define BBP47_TSSI_ADC6			FIELD8(0x80)
 
 /*
+ * BBP 49
+ */
+#define BBP49_UPDATE_FLAG		FIELD8(0x01)
+
+/*
  * BBP 109
  */
 #define BBP109_TX0_POWER		FIELD8(0x0f)
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 88455b1b9fe..540c94f8505 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -221,6 +221,67 @@ static void rt2800_rf_write(struct rt2x00_dev *rt2x00dev,
 	mutex_unlock(&rt2x00dev->csr_mutex);
 }
 
+static int rt2800_enable_wlan_rt3290(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	int i, count;
+
+	rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
+	if (rt2x00_get_field32(reg, WLAN_EN))
+		return 0;
+
+	rt2x00_set_field32(&reg, WLAN_GPIO_OUT_OE_BIT_ALL, 0xff);
+	rt2x00_set_field32(&reg, FRC_WL_ANT_SET, 1);
+	rt2x00_set_field32(&reg, WLAN_CLK_EN, 0);
+	rt2x00_set_field32(&reg, WLAN_EN, 1);
+	rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
+
+	udelay(REGISTER_BUSY_DELAY);
+
+	count = 0;
+	do {
+		/*
+		 * Check PLL_LD & XTAL_RDY.
+		 */
+		for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+			rt2800_register_read(rt2x00dev, CMB_CTRL, &reg);
+			if (rt2x00_get_field32(reg, PLL_LD) &&
+			    rt2x00_get_field32(reg, XTAL_RDY))
+				break;
+			udelay(REGISTER_BUSY_DELAY);
+		}
+
+		if (i >= REGISTER_BUSY_COUNT) {
+
+			if (count >= 10)
+				return -EIO;
+
+			rt2800_register_write(rt2x00dev, 0x58, 0x018);
+			udelay(REGISTER_BUSY_DELAY);
+			rt2800_register_write(rt2x00dev, 0x58, 0x418);
+			udelay(REGISTER_BUSY_DELAY);
+			rt2800_register_write(rt2x00dev, 0x58, 0x618);
+			udelay(REGISTER_BUSY_DELAY);
+			count++;
+		} else {
+			count = 0;
+		}
+
+		rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
+		rt2x00_set_field32(&reg, PCIE_APP0_CLK_REQ, 0);
+		rt2x00_set_field32(&reg, WLAN_CLK_EN, 1);
+		rt2x00_set_field32(&reg, WLAN_RESET, 1);
+		rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
+		udelay(10);
+		rt2x00_set_field32(&reg, WLAN_RESET, 0);
+		rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
+		udelay(10);
+		rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, 0x7fffffff);
+	} while (count != 0);
+
+	return 0;
+}
+
 void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev,
 			const u8 command, const u8 token,
 			const u8 arg0, const u8 arg1)
@@ -400,6 +461,13 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
 {
 	unsigned int i;
 	u32 reg;
+	int retval;
+
+	if (rt2x00_rt(rt2x00dev, RT3290)) {
+		retval = rt2800_enable_wlan_rt3290(rt2x00dev);
+		if (retval)
+			return -EBUSY;
+	}
 
 	/*
 	 * If driver doesn't wake up firmware here,
@@ -855,8 +923,8 @@ int rt2800_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 		rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
 		return rt2x00_get_field32(reg, WLAN_GPIO_IN_BIT0);
 	} else {
-		rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, &reg);
-		return rt2x00_get_field32(reg, GPIO_CTRL_CFG_BIT2);
+		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+		return rt2x00_get_field32(reg, GPIO_CTRL_VAL2);
 	}
 }
 EXPORT_SYMBOL_GPL(rt2800_rfkill_poll);
@@ -1502,10 +1570,10 @@ static void rt2800_set_ant_diversity(struct rt2x00_dev *rt2x00dev,
 		rt2800_mcu_request(rt2x00dev, MCU_ANT_SELECT, 0xff,
 				   eesk_pin, 0);
 
-	rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, &reg);
-	rt2x00_set_field32(&reg, GPIO_CTRL_CFG_GPIOD_BIT3, 0);
-	rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT3, gpio_bit3);
-	rt2800_register_write(rt2x00dev, GPIO_CTRL_CFG, reg);
+	rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+	rt2x00_set_field32(&reg, GPIO_CTRL_DIR3, 0);
+	rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, gpio_bit3);
+	rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
 }
 
 void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant)
@@ -1547,6 +1615,7 @@ void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant)
 	case 1:
 		if (rt2x00_rt(rt2x00dev, RT3070) ||
 		    rt2x00_rt(rt2x00dev, RT3090) ||
+		    rt2x00_rt(rt2x00dev, RT3352) ||
 		    rt2x00_rt(rt2x00dev, RT3390)) {
 			rt2x00_eeprom_read(rt2x00dev,
 					   EEPROM_NIC_CONF1, &eeprom);
@@ -1694,36 +1763,15 @@ static void rt2800_config_channel_rf3xxx(struct rt2x00_dev *rt2x00dev,
 
 	rt2800_rfcsr_read(rt2x00dev, 1, &rfcsr);
 	rt2x00_set_field8(&rfcsr, RFCSR1_RX0_PD, 0);
+	rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD,
+			  rt2x00dev->default_ant.rx_chain_num <= 1);
+	rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD,
+			  rt2x00dev->default_ant.rx_chain_num <= 2);
 	rt2x00_set_field8(&rfcsr, RFCSR1_TX0_PD, 0);
-	if (rt2x00_rt(rt2x00dev, RT3390)) {
-		rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD,
-				  rt2x00dev->default_ant.rx_chain_num == 1);
-		rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD,
-				  rt2x00dev->default_ant.tx_chain_num == 1);
-	} else {
-		rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD, 0);
-		rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 0);
-		rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD, 0);
-		rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD, 0);
-
-		switch (rt2x00dev->default_ant.tx_chain_num) {
-		case 1:
-			rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 1);
-			/* fall through */
-		case 2:
-			rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD, 1);
-			break;
-		}
-
-		switch (rt2x00dev->default_ant.rx_chain_num) {
-		case 1:
-			rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD, 1);
-			/* fall through */
-		case 2:
-			rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD, 1);
-			break;
-		}
-	}
+	rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD,
+			  rt2x00dev->default_ant.tx_chain_num <= 1);
+	rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD,
+			  rt2x00dev->default_ant.tx_chain_num <= 2);
 	rt2800_rfcsr_write(rt2x00dev, 1, rfcsr);
 
 	rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
@@ -1927,13 +1975,13 @@ static void rt2800_config_channel_rf3052(struct rt2x00_dev *rt2x00dev,
 		rt2800_rfcsr_write(rt2x00dev, 29, 0x9f);
 	}
 
-	rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, &reg);
-	rt2x00_set_field32(&reg, GPIO_CTRL_CFG_GPIOD_BIT7, 0);
+	rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+	rt2x00_set_field32(&reg, GPIO_CTRL_DIR7, 0);
 	if (rf->channel <= 14)
-		rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT7, 1);
+		rt2x00_set_field32(&reg, GPIO_CTRL_VAL7, 1);
 	else
-		rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT7, 0);
-	rt2800_register_write(rt2x00dev, GPIO_CTRL_CFG, reg);
+		rt2x00_set_field32(&reg, GPIO_CTRL_VAL7, 0);
+	rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
 
 	rt2800_rfcsr_read(rt2x00dev, 7, &rfcsr);
 	rt2x00_set_field8(&rfcsr, RFCSR7_RF_TUNING, 1);
@@ -1985,6 +2033,60 @@ static void rt2800_config_channel_rf3290(struct rt2x00_dev *rt2x00dev,
 	}
 }
 
+static void rt2800_config_channel_rf3322(struct rt2x00_dev *rt2x00dev,
+					 struct ieee80211_conf *conf,
+					 struct rf_channel *rf,
+					 struct channel_info *info)
+{
+	u8 rfcsr;
+
+	rt2800_rfcsr_write(rt2x00dev, 8, rf->rf1);
+	rt2800_rfcsr_write(rt2x00dev, 9, rf->rf3);
+
+	rt2800_rfcsr_write(rt2x00dev, 11, 0x42);
+	rt2800_rfcsr_write(rt2x00dev, 12, 0x1c);
+	rt2800_rfcsr_write(rt2x00dev, 13, 0x00);
+
+	if (info->default_power1 > POWER_BOUND)
+		rt2800_rfcsr_write(rt2x00dev, 47, POWER_BOUND);
+	else
+		rt2800_rfcsr_write(rt2x00dev, 47, info->default_power1);
+
+	if (info->default_power2 > POWER_BOUND)
+		rt2800_rfcsr_write(rt2x00dev, 48, POWER_BOUND);
+	else
+		rt2800_rfcsr_write(rt2x00dev, 48, info->default_power2);
+
+	rt2800_rfcsr_read(rt2x00dev, 17, &rfcsr);
+	if (rt2x00dev->freq_offset > FREQ_OFFSET_BOUND)
+		rt2x00_set_field8(&rfcsr, RFCSR17_CODE, FREQ_OFFSET_BOUND);
+	else
+		rt2x00_set_field8(&rfcsr, RFCSR17_CODE, rt2x00dev->freq_offset);
+
+	rt2800_rfcsr_write(rt2x00dev, 17, rfcsr);
+
+	rt2800_rfcsr_read(rt2x00dev, 1, &rfcsr);
+	rt2x00_set_field8(&rfcsr, RFCSR1_RX0_PD, 1);
+	rt2x00_set_field8(&rfcsr, RFCSR1_TX0_PD, 1);
+
+	if ( rt2x00dev->default_ant.tx_chain_num == 2 )
+		rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 1);
+	else
+		rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 0);
+
+	if ( rt2x00dev->default_ant.rx_chain_num == 2 )
+		rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD, 1);
+	else
+		rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD, 0);
+
+	rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD, 0);
+	rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD, 0);
+
+	rt2800_rfcsr_write(rt2x00dev, 1, rfcsr);
+
+	rt2800_rfcsr_write(rt2x00dev, 31, 80);
+}
+
 static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev,
 					 struct ieee80211_conf *conf,
 					 struct rf_channel *rf,
@@ -2114,6 +2216,9 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 	case RF3290:
 		rt2800_config_channel_rf3290(rt2x00dev, conf, rf, info);
 		break;
+	case RF3322:
+		rt2800_config_channel_rf3322(rt2x00dev, conf, rf, info);
+		break;
 	case RF5360:
 	case RF5370:
 	case RF5372:
@@ -2126,6 +2231,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 	}
 
 	if (rt2x00_rf(rt2x00dev, RF3290) ||
+	    rt2x00_rf(rt2x00dev, RF3322) ||
 	    rt2x00_rf(rt2x00dev, RF5360) ||
 	    rt2x00_rf(rt2x00dev, RF5370) ||
 	    rt2x00_rf(rt2x00dev, RF5372) ||
@@ -2144,10 +2250,17 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 	/*
 	 * Change BBP settings
 	 */
-	rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain);
-	rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
-	rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain);
-	rt2800_bbp_write(rt2x00dev, 86, 0);
+	if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_bbp_write(rt2x00dev, 27, 0x0);
+		rt2800_bbp_write(rt2x00dev, 62, 0x26 + rt2x00dev->lna_gain);
+		rt2800_bbp_write(rt2x00dev, 27, 0x20);
+		rt2800_bbp_write(rt2x00dev, 62, 0x26 + rt2x00dev->lna_gain);
+	} else {
+		rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain);
+		rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
+		rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain);
+		rt2800_bbp_write(rt2x00dev, 86, 0);
+	}
 
 	if (rf->channel <= 14) {
 		if (!rt2x00_rt(rt2x00dev, RT5390) &&
@@ -2242,6 +2355,15 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 	rt2800_register_read(rt2x00dev, CH_IDLE_STA, &reg);
 	rt2800_register_read(rt2x00dev, CH_BUSY_STA, &reg);
 	rt2800_register_read(rt2x00dev, CH_BUSY_STA_SEC, &reg);
+
+	/*
+	 * Clear update flag
+	 */
+	if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_bbp_read(rt2x00dev, 49, &bbp);
+		rt2x00_set_field8(&bbp, BBP49_UPDATE_FLAG, 0);
+		rt2800_bbp_write(rt2x00dev, 49, bbp);
+	}
 }
 
 static int rt2800_get_gain_calibration_delta(struct rt2x00_dev *rt2x00dev)
@@ -2753,23 +2875,32 @@ EXPORT_SYMBOL_GPL(rt2800_link_stats);
 
 static u8 rt2800_get_default_vgc(struct rt2x00_dev *rt2x00dev)
 {
+	u8 vgc;
+
 	if (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ) {
 		if (rt2x00_rt(rt2x00dev, RT3070) ||
 		    rt2x00_rt(rt2x00dev, RT3071) ||
 		    rt2x00_rt(rt2x00dev, RT3090) ||
 		    rt2x00_rt(rt2x00dev, RT3290) ||
 		    rt2x00_rt(rt2x00dev, RT3390) ||
+		    rt2x00_rt(rt2x00dev, RT3572) ||
 		    rt2x00_rt(rt2x00dev, RT5390) ||
 		    rt2x00_rt(rt2x00dev, RT5392))
-			return 0x1c + (2 * rt2x00dev->lna_gain);
+			vgc = 0x1c + (2 * rt2x00dev->lna_gain);
 		else
-			return 0x2e + rt2x00dev->lna_gain;
+			vgc = 0x2e + rt2x00dev->lna_gain;
+	} else { /* 5GHZ band */
+		if (rt2x00_rt(rt2x00dev, RT3572))
+			vgc = 0x22 + (rt2x00dev->lna_gain * 5) / 3;
+		else {
+			if (!test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags))
+				vgc = 0x32 + (rt2x00dev->lna_gain * 5) / 3;
+			else
+				vgc = 0x3a + (rt2x00dev->lna_gain * 5) / 3;
+		}
 	}
 
-	if (!test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags))
-		return 0x32 + (rt2x00dev->lna_gain * 5) / 3;
-	else
-		return 0x3a + (rt2x00dev->lna_gain * 5) / 3;
+	return vgc;
 }
 
 static inline void rt2800_set_vgc(struct rt2x00_dev *rt2x00dev,
@@ -2930,11 +3061,15 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
 		rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000400);
 		rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00000000);
 		rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000030);
+	} else if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000402);
+		rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606);
+		rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
 	} else if (rt2x00_rt(rt2x00dev, RT3572)) {
 		rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000400);
 		rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606);
 	} else if (rt2x00_rt(rt2x00dev, RT5390) ||
-			   rt2x00_rt(rt2x00dev, RT5392)) {
+		   rt2x00_rt(rt2x00dev, RT5392)) {
 		rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000404);
 		rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606);
 		rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000);
@@ -3310,6 +3445,11 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		     rt2800_wait_bbp_ready(rt2x00dev)))
 		return -EACCES;
 
+	if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_bbp_write(rt2x00dev, 3, 0x00);
+		rt2800_bbp_write(rt2x00dev, 4, 0x50);
+	}
+
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392)) {
@@ -3320,15 +3460,20 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 
 	if (rt2800_is_305x_soc(rt2x00dev) ||
 	    rt2x00_rt(rt2x00dev, RT3290) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT3572) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 31, 0x08);
 
+	if (rt2x00_rt(rt2x00dev, RT3352))
+		rt2800_bbp_write(rt2x00dev, 47, 0x48);
+
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 68, 0x0b);
@@ -3337,6 +3482,7 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 69, 0x16);
 		rt2800_bbp_write(rt2x00dev, 73, 0x12);
 	} else if (rt2x00_rt(rt2x00dev, RT3290) ||
+		   rt2x00_rt(rt2x00dev, RT3352) ||
 		   rt2x00_rt(rt2x00dev, RT5390) ||
 		   rt2x00_rt(rt2x00dev, RT5392)) {
 		rt2800_bbp_write(rt2x00dev, 69, 0x12);
@@ -3368,15 +3514,17 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 	} else if (rt2800_is_305x_soc(rt2x00dev)) {
 		rt2800_bbp_write(rt2x00dev, 78, 0x0e);
 		rt2800_bbp_write(rt2x00dev, 80, 0x08);
-	} else {
-		rt2800_bbp_write(rt2x00dev, 81, 0x37);
-	}
-
-	if (rt2x00_rt(rt2x00dev, RT3290)) {
+	} else if (rt2x00_rt(rt2x00dev, RT3290)) {
 		rt2800_bbp_write(rt2x00dev, 74, 0x0b);
 		rt2800_bbp_write(rt2x00dev, 79, 0x18);
 		rt2800_bbp_write(rt2x00dev, 80, 0x09);
 		rt2800_bbp_write(rt2x00dev, 81, 0x33);
+	} else if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_bbp_write(rt2x00dev, 78, 0x0e);
+		rt2800_bbp_write(rt2x00dev, 80, 0x08);
+		rt2800_bbp_write(rt2x00dev, 81, 0x37);
+	} else {
+		rt2800_bbp_write(rt2x00dev, 81, 0x37);
 	}
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
@@ -3397,18 +3545,21 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 86, 0x38);
 	else
 		rt2800_bbp_write(rt2x00dev, 86, 0x00);
 
-	if (rt2x00_rt(rt2x00dev, RT5392))
+	if (rt2x00_rt(rt2x00dev, RT3352) ||
+	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 88, 0x90);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 92, 0x02);
@@ -3425,6 +3576,7 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 	    rt2x00_rt_rev_gte(rt2x00dev, RT3090, REV_RT3090E) ||
 	    rt2x00_rt_rev_gte(rt2x00dev, RT3390, REV_RT3390E) ||
 	    rt2x00_rt(rt2x00dev, RT3290) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT3572) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392) ||
@@ -3434,6 +3586,7 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 103, 0x00);
 
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 104, 0x92);
@@ -3442,6 +3595,8 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 105, 0x01);
 	else if (rt2x00_rt(rt2x00dev, RT3290))
 		rt2800_bbp_write(rt2x00dev, 105, 0x1c);
+	else if (rt2x00_rt(rt2x00dev, RT3352))
+		rt2800_bbp_write(rt2x00dev, 105, 0x34);
 	else if (rt2x00_rt(rt2x00dev, RT5390) ||
 			 rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 105, 0x3c);
@@ -3451,11 +3606,16 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390))
 		rt2800_bbp_write(rt2x00dev, 106, 0x03);
+	else if (rt2x00_rt(rt2x00dev, RT3352))
+		rt2800_bbp_write(rt2x00dev, 106, 0x05);
 	else if (rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 106, 0x12);
 	else
 		rt2800_bbp_write(rt2x00dev, 106, 0x35);
 
+	if (rt2x00_rt(rt2x00dev, RT3352))
+		rt2800_bbp_write(rt2x00dev, 120, 0x50);
+
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
@@ -3466,6 +3626,9 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 135, 0xf6);
 	}
 
+	if (rt2x00_rt(rt2x00dev, RT3352))
+		rt2800_bbp_write(rt2x00dev, 137, 0x0f);
+
 	if (rt2x00_rt(rt2x00dev, RT3071) ||
 	    rt2x00_rt(rt2x00dev, RT3090) ||
 	    rt2x00_rt(rt2x00dev, RT3390) ||
@@ -3506,6 +3669,28 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 3, value);
 	}
 
+	if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_bbp_write(rt2x00dev, 163, 0xbd);
+		/* Set ITxBF timeout to 0x9c40=1000msec */
+		rt2800_bbp_write(rt2x00dev, 179, 0x02);
+		rt2800_bbp_write(rt2x00dev, 180, 0x00);
+		rt2800_bbp_write(rt2x00dev, 182, 0x40);
+		rt2800_bbp_write(rt2x00dev, 180, 0x01);
+		rt2800_bbp_write(rt2x00dev, 182, 0x9c);
+		rt2800_bbp_write(rt2x00dev, 179, 0x00);
+		/* Reprogram the inband interface to put right values in RXWI */
+		rt2800_bbp_write(rt2x00dev, 142, 0x04);
+		rt2800_bbp_write(rt2x00dev, 143, 0x3b);
+		rt2800_bbp_write(rt2x00dev, 142, 0x06);
+		rt2800_bbp_write(rt2x00dev, 143, 0xa0);
+		rt2800_bbp_write(rt2x00dev, 142, 0x07);
+		rt2800_bbp_write(rt2x00dev, 143, 0xa1);
+		rt2800_bbp_write(rt2x00dev, 142, 0x08);
+		rt2800_bbp_write(rt2x00dev, 143, 0xa2);
+
+		rt2800_bbp_write(rt2x00dev, 148, 0xc8);
+	}
+
 	if (rt2x00_rt(rt2x00dev, RT5390) ||
 		rt2x00_rt(rt2x00dev, RT5392)) {
 		int ant, div_mode;
@@ -3519,16 +3704,16 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
 			u32 reg;
 
-			rt2800_register_read(rt2x00dev, GPIO_CTRL_CFG, &reg);
-			rt2x00_set_field32(&reg, GPIO_CTRL_CFG_GPIOD_BIT3, 0);
-			rt2x00_set_field32(&reg, GPIO_CTRL_CFG_GPIOD_BIT6, 0);
-			rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT3, 0);
-			rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT6, 0);
+			rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+			rt2x00_set_field32(&reg, GPIO_CTRL_DIR3, 0);
+			rt2x00_set_field32(&reg, GPIO_CTRL_DIR6, 0);
+			rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, 0);
+			rt2x00_set_field32(&reg, GPIO_CTRL_VAL6, 0);
 			if (ant == 0)
-				rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT3, 1);
+				rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, 1);
 			else if (ant == 1)
-				rt2x00_set_field32(&reg, GPIO_CTRL_CFG_BIT6, 1);
-			rt2800_register_write(rt2x00dev, GPIO_CTRL_CFG, reg);
+				rt2x00_set_field32(&reg, GPIO_CTRL_VAL6, 1);
+			rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
 		}
 
 		/* This chip has hardware antenna diversity*/
@@ -3639,6 +3824,7 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
 	    !rt2x00_rt(rt2x00dev, RT3071) &&
 	    !rt2x00_rt(rt2x00dev, RT3090) &&
 	    !rt2x00_rt(rt2x00dev, RT3290) &&
+	    !rt2x00_rt(rt2x00dev, RT3352) &&
 	    !rt2x00_rt(rt2x00dev, RT3390) &&
 	    !rt2x00_rt(rt2x00dev, RT3572) &&
 	    !rt2x00_rt(rt2x00dev, RT5390) &&
@@ -3835,6 +4021,70 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
 		rt2800_rfcsr_write(rt2x00dev, 30, 0x00);
 		rt2800_rfcsr_write(rt2x00dev, 31, 0x00);
 		return 0;
+	} else if (rt2x00_rt(rt2x00dev, RT3352)) {
+		rt2800_rfcsr_write(rt2x00dev, 0, 0xf0);
+		rt2800_rfcsr_write(rt2x00dev, 1, 0x23);
+		rt2800_rfcsr_write(rt2x00dev, 2, 0x50);
+		rt2800_rfcsr_write(rt2x00dev, 3, 0x18);
+		rt2800_rfcsr_write(rt2x00dev, 4, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 5, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 6, 0x33);
+		rt2800_rfcsr_write(rt2x00dev, 7, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 8, 0xf1);
+		rt2800_rfcsr_write(rt2x00dev, 9, 0x02);
+		rt2800_rfcsr_write(rt2x00dev, 10, 0xd2);
+		rt2800_rfcsr_write(rt2x00dev, 11, 0x42);
+		rt2800_rfcsr_write(rt2x00dev, 12, 0x1c);
+		rt2800_rfcsr_write(rt2x00dev, 13, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 14, 0x5a);
+		rt2800_rfcsr_write(rt2x00dev, 15, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 16, 0x01);
+		rt2800_rfcsr_write(rt2x00dev, 18, 0x45);
+		rt2800_rfcsr_write(rt2x00dev, 19, 0x02);
+		rt2800_rfcsr_write(rt2x00dev, 20, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 21, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 22, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 23, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 24, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 25, 0x80);
+		rt2800_rfcsr_write(rt2x00dev, 26, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 27, 0x03);
+		rt2800_rfcsr_write(rt2x00dev, 28, 0x03);
+		rt2800_rfcsr_write(rt2x00dev, 29, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 30, 0x10);
+		rt2800_rfcsr_write(rt2x00dev, 31, 0x80);
+		rt2800_rfcsr_write(rt2x00dev, 32, 0x80);
+		rt2800_rfcsr_write(rt2x00dev, 33, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 34, 0x01);
+		rt2800_rfcsr_write(rt2x00dev, 35, 0x03);
+		rt2800_rfcsr_write(rt2x00dev, 36, 0xbd);
+		rt2800_rfcsr_write(rt2x00dev, 37, 0x3c);
+		rt2800_rfcsr_write(rt2x00dev, 38, 0x5f);
+		rt2800_rfcsr_write(rt2x00dev, 39, 0xc5);
+		rt2800_rfcsr_write(rt2x00dev, 40, 0x33);
+		rt2800_rfcsr_write(rt2x00dev, 41, 0x5b);
+		rt2800_rfcsr_write(rt2x00dev, 42, 0x5b);
+		rt2800_rfcsr_write(rt2x00dev, 43, 0xdb);
+		rt2800_rfcsr_write(rt2x00dev, 44, 0xdb);
+		rt2800_rfcsr_write(rt2x00dev, 45, 0xdb);
+		rt2800_rfcsr_write(rt2x00dev, 46, 0xdd);
+		rt2800_rfcsr_write(rt2x00dev, 47, 0x0d);
+		rt2800_rfcsr_write(rt2x00dev, 48, 0x14);
+		rt2800_rfcsr_write(rt2x00dev, 49, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 50, 0x2d);
+		rt2800_rfcsr_write(rt2x00dev, 51, 0x7f);
+		rt2800_rfcsr_write(rt2x00dev, 52, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 53, 0x52);
+		rt2800_rfcsr_write(rt2x00dev, 54, 0x1b);
+		rt2800_rfcsr_write(rt2x00dev, 55, 0x7f);
+		rt2800_rfcsr_write(rt2x00dev, 56, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 57, 0x52);
+		rt2800_rfcsr_write(rt2x00dev, 58, 0x1b);
+		rt2800_rfcsr_write(rt2x00dev, 59, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 60, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 61, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 62, 0x00);
+		rt2800_rfcsr_write(rt2x00dev, 63, 0x00);
 	} else if (rt2x00_rt(rt2x00dev, RT5390)) {
 		rt2800_rfcsr_write(rt2x00dev, 1, 0x0f);
 		rt2800_rfcsr_write(rt2x00dev, 2, 0x80);
@@ -4021,6 +4271,7 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
 		rt2800_register_write(rt2x00dev, LDO_CFG0, reg);
 		msleep(1);
 		rt2800_register_read(rt2x00dev, LDO_CFG0, &reg);
+		rt2x00_set_field32(&reg, LDO_CFG0_LDO_CORE_VLEVEL, 0);
 		rt2x00_set_field32(&reg, LDO_CFG0_BGSEL, 1);
 		rt2800_register_write(rt2x00dev, LDO_CFG0, reg);
 	}
@@ -4035,6 +4286,7 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
 			rt2800_init_rx_filter(rt2x00dev, true, 0x27, 0x19);
 	} else if (rt2x00_rt(rt2x00dev, RT3071) ||
 		   rt2x00_rt(rt2x00dev, RT3090) ||
+		   rt2x00_rt(rt2x00dev, RT3352) ||
 		   rt2x00_rt(rt2x00dev, RT3390) ||
 		   rt2x00_rt(rt2x00dev, RT3572)) {
 		drv_data->calibration_bw20 =
@@ -4323,7 +4575,7 @@ void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
 }
 EXPORT_SYMBOL_GPL(rt2800_read_eeprom_efuse);
 
-int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev)
+static int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev)
 {
 	struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
 	u16 word;
@@ -4331,6 +4583,11 @@ int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev)
 	u8 default_lna_gain;
 
 	/*
+	 * Read the EEPROM.
+	 */
+	rt2800_read_eeprom(rt2x00dev);
+
+	/*
 	 * Start validation of the data that has been read.
 	 */
 	mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
@@ -4452,9 +4709,8 @@ int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(rt2800_validate_eeprom);
 
-int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
+static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
 	u16 value;
@@ -4493,6 +4749,7 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	case RT3071:
 	case RT3090:
 	case RT3290:
+	case RT3352:
 	case RT3390:
 	case RT3572:
 	case RT5390:
@@ -4515,6 +4772,7 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	case RF3052:
 	case RF3290:
 	case RF3320:
+	case RF3322:
 	case RF5360:
 	case RF5370:
 	case RF5372:
@@ -4539,6 +4797,7 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
 
 	if (rt2x00_rt(rt2x00dev, RT3070) ||
 	    rt2x00_rt(rt2x00dev, RT3090) ||
+	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT3390)) {
 		value = rt2x00_get_field16(eeprom,
 				EEPROM_NIC_CONF1_ANT_DIVERSITY);
@@ -4612,7 +4871,6 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(rt2800_init_eeprom);
 
 /*
  * RF value list for rt28xx
@@ -4755,7 +5013,7 @@ static const struct rf_channel rf_vals_3x[] = {
 	{173, 0x61, 0, 9},
 };
 
-int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
+static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 {
 	struct hw_mode_spec *spec = &rt2x00dev->spec;
 	struct channel_info *info;
@@ -4832,6 +5090,7 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 		   rt2x00_rf(rt2x00dev, RF3022) ||
 		   rt2x00_rf(rt2x00dev, RF3290) ||
 		   rt2x00_rf(rt2x00dev, RF3320) ||
+		   rt2x00_rf(rt2x00dev, RF3322) ||
 		   rt2x00_rf(rt2x00dev, RF5360) ||
 		   rt2x00_rf(rt2x00dev, RF5370) ||
 		   rt2x00_rf(rt2x00dev, RF5372) ||
@@ -4931,7 +5190,72 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(rt2800_probe_hw_mode);
+
+int rt2800_probe_hw(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+	u32 reg;
+
+	/*
+	 * Allocate eeprom data.
+	 */
+	retval = rt2800_validate_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	retval = rt2800_init_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Enable rfkill polling by setting GPIO direction of the
+	 * rfkill switch GPIO pin correctly.
+	 */
+	rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+	rt2x00_set_field32(&reg, GPIO_CTRL_DIR2, 1);
+	rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
+
+	/*
+	 * Initialize hw specifications.
+	 */
+	retval = rt2800_probe_hw_mode(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Set device capabilities.
+	 */
+	__set_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags);
+	__set_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags);
+	if (!rt2x00_is_usb(rt2x00dev))
+		__set_bit(CAPABILITY_PRE_TBTT_INTERRUPT, &rt2x00dev->cap_flags);
+
+	/*
+	 * Set device requirements.
+	 */
+	if (!rt2x00_is_soc(rt2x00dev))
+		__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
+	__set_bit(REQUIRE_L2PAD, &rt2x00dev->cap_flags);
+	__set_bit(REQUIRE_TXSTATUS_FIFO, &rt2x00dev->cap_flags);
+	if (!rt2800_hwcrypt_disabled(rt2x00dev))
+		__set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
+	__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
+	__set_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags);
+	if (rt2x00_is_usb(rt2x00dev))
+		__set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags);
+	else {
+		__set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
+		__set_bit(REQUIRE_TASKLET_CONTEXT, &rt2x00dev->cap_flags);
+	}
+
+	/*
+	 * Set the rssi offset.
+	 */
+	rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2800_probe_hw);
 
 /*
  * IEEE80211 stack callback functions.
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.h b/drivers/net/wireless/rt2x00/rt2800lib.h
index 18a0b67b4c6..a128ceadcb3 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.h
+++ b/drivers/net/wireless/rt2x00/rt2800lib.h
@@ -43,6 +43,9 @@ struct rt2800_ops {
 			    const unsigned int offset,
 			    const struct rt2x00_field32 field, u32 *reg);
 
+	void (*read_eeprom)(struct rt2x00_dev *rt2x00dev);
+	bool (*hwcrypt_disabled)(struct rt2x00_dev *rt2x00dev);
+
 	int (*drv_write_firmware)(struct rt2x00_dev *rt2x00dev,
 				  const u8 *data, const size_t len);
 	int (*drv_init_registers)(struct rt2x00_dev *rt2x00dev);
@@ -114,6 +117,20 @@ static inline int rt2800_regbusy_read(struct rt2x00_dev *rt2x00dev,
 	return rt2800ops->regbusy_read(rt2x00dev, offset, field, reg);
 }
 
+static inline void rt2800_read_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
+
+	rt2800ops->read_eeprom(rt2x00dev);
+}
+
+static inline bool rt2800_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
+{
+	const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
+
+	return rt2800ops->hwcrypt_disabled(rt2x00dev);
+}
+
 static inline int rt2800_drv_write_firmware(struct rt2x00_dev *rt2x00dev,
 					    const u8 *data, const size_t len)
 {
@@ -191,9 +208,8 @@ void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev);
 
 int rt2800_efuse_detect(struct rt2x00_dev *rt2x00dev);
 void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev);
-int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev);
-int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev);
-int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev);
+
+int rt2800_probe_hw(struct rt2x00_dev *rt2x00dev);
 
 void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx, u32 *iv32,
 			 u16 *iv16);
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 235376e9cb0..27829e1e2e3 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -54,6 +54,11 @@ static bool modparam_nohwcrypt = false;
 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 
+static bool rt2800pci_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
+{
+	return modparam_nohwcrypt;
+}
+
 static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
 {
 	unsigned int i;
@@ -965,147 +970,14 @@ static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
 /*
  * Device probe functions.
  */
-static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
+static void rt2800pci_read_eeprom(struct rt2x00_dev *rt2x00dev)
 {
-	/*
-	 * Read EEPROM into buffer
-	 */
 	if (rt2x00_is_soc(rt2x00dev))
 		rt2800pci_read_eeprom_soc(rt2x00dev);
 	else if (rt2800pci_efuse_detect(rt2x00dev))
 		rt2800pci_read_eeprom_efuse(rt2x00dev);
 	else
 		rt2800pci_read_eeprom_pci(rt2x00dev);
-
-	return rt2800_validate_eeprom(rt2x00dev);
-}
-
-static int rt2800_enable_wlan_rt3290(struct rt2x00_dev *rt2x00dev)
-{
-	u32 reg;
-	int i, count;
-
-	rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
-	if (rt2x00_get_field32(reg, WLAN_EN))
-		return 0;
-
-	rt2x00_set_field32(&reg, WLAN_GPIO_OUT_OE_BIT_ALL, 0xff);
-	rt2x00_set_field32(&reg, FRC_WL_ANT_SET, 1);
-	rt2x00_set_field32(&reg, WLAN_CLK_EN, 0);
-	rt2x00_set_field32(&reg, WLAN_EN, 1);
-	rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
-
-	udelay(REGISTER_BUSY_DELAY);
-
-	count = 0;
-	do {
-		/*
-		 * Check PLL_LD & XTAL_RDY.
-		 */
-		for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
-			rt2800_register_read(rt2x00dev, CMB_CTRL, &reg);
-			if (rt2x00_get_field32(reg, PLL_LD) &&
-			    rt2x00_get_field32(reg, XTAL_RDY))
-				break;
-			udelay(REGISTER_BUSY_DELAY);
-		}
-
-		if (i >= REGISTER_BUSY_COUNT) {
-
-			if (count >= 10)
-				return -EIO;
-
-			rt2800_register_write(rt2x00dev, 0x58, 0x018);
-			udelay(REGISTER_BUSY_DELAY);
-			rt2800_register_write(rt2x00dev, 0x58, 0x418);
-			udelay(REGISTER_BUSY_DELAY);
-			rt2800_register_write(rt2x00dev, 0x58, 0x618);
-			udelay(REGISTER_BUSY_DELAY);
-			count++;
-		} else {
-			count = 0;
-		}
-
-		rt2800_register_read(rt2x00dev, WLAN_FUN_CTRL, &reg);
-		rt2x00_set_field32(&reg, PCIE_APP0_CLK_REQ, 0);
-		rt2x00_set_field32(&reg, WLAN_CLK_EN, 1);
-		rt2x00_set_field32(&reg, WLAN_RESET, 1);
-		rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
-		udelay(10);
-		rt2x00_set_field32(&reg, WLAN_RESET, 0);
-		rt2800_register_write(rt2x00dev, WLAN_FUN_CTRL, reg);
-		udelay(10);
-		rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, 0x7fffffff);
-	} while (count != 0);
-
-	return 0;
-}
-static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
-{
-	int retval;
-
-	/*
-	 * Allocate eeprom data.
-	 */
-	retval = rt2800pci_validate_eeprom(rt2x00dev);
-	if (retval)
-		return retval;
-
-	retval = rt2800_init_eeprom(rt2x00dev);
-	if (retval)
-		return retval;
-
-	/*
-	 * Initialize hw specifications.
-	 */
-	retval = rt2800_probe_hw_mode(rt2x00dev);
-	if (retval)
-		return retval;
-
-	/*
-	 * In probe phase call rt2800_enable_wlan_rt3290 to enable wlan
-	 * clk for rt3290. That avoid the MCU fail in start phase.
-	 */
-	if (rt2x00_rt(rt2x00dev, RT3290)) {
-		retval = rt2800_enable_wlan_rt3290(rt2x00dev);
-
-		if (retval)
-			return retval;
-	}
-
-	/*
-	 * This device has multiple filters for control frames
-	 * and has a separate filter for PS Poll frames.
-	 */
-	__set_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags);
-	__set_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags);
-
-	/*
-	 * This device has a pre tbtt interrupt and thus fetches
-	 * a new beacon directly prior to transmission.
-	 */
-	__set_bit(CAPABILITY_PRE_TBTT_INTERRUPT, &rt2x00dev->cap_flags);
-
-	/*
-	 * This device requires firmware.
-	 */
-	if (!rt2x00_is_soc(rt2x00dev))
-		__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_L2PAD, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_TXSTATUS_FIFO, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_TASKLET_CONTEXT, &rt2x00dev->cap_flags);
-	if (!modparam_nohwcrypt)
-		__set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
-	__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags);
-
-	/*
-	 * Set the rssi offset.
-	 */
-	rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
-
-	return 0;
 }
 
 static const struct ieee80211_ops rt2800pci_mac80211_ops = {
@@ -1143,6 +1015,8 @@ static const struct rt2800_ops rt2800pci_rt2800_ops = {
 	.register_multiread	= rt2x00pci_register_multiread,
 	.register_multiwrite	= rt2x00pci_register_multiwrite,
 	.regbusy_read		= rt2x00pci_regbusy_read,
+	.read_eeprom		= rt2800pci_read_eeprom,
+	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800pci_write_firmware,
 	.drv_init_registers	= rt2800pci_init_registers,
 	.drv_get_txwi		= rt2800pci_get_txwi,
@@ -1155,7 +1029,7 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.tbtt_tasklet		= rt2800pci_tbtt_tasklet,
 	.rxdone_tasklet		= rt2800pci_rxdone_tasklet,
 	.autowake_tasklet	= rt2800pci_autowake_tasklet,
-	.probe_hw		= rt2800pci_probe_hw,
+	.probe_hw		= rt2800_probe_hw,
 	.get_firmware_name	= rt2800pci_get_firmware_name,
 	.check_firmware		= rt2800_check_firmware,
 	.load_firmware		= rt2800_load_firmware,
@@ -1214,7 +1088,6 @@ static const struct data_queue_desc rt2800pci_queue_bcn = {
 static const struct rt2x00_ops rt2800pci_ops = {
 	.name			= KBUILD_MODNAME,
 	.drv_data_size		= sizeof(struct rt2800_drv_data),
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 8,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 6cf336595e2..c9e9370eb78 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -49,6 +49,11 @@ static bool modparam_nohwcrypt;
 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 
+static bool rt2800usb_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
+{
+	return modparam_nohwcrypt;
+}
+
 /*
  * Queue handlers.
  */
@@ -667,8 +672,16 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 	skb_pull(entry->skb, RXINFO_DESC_SIZE);
 
 	/*
-	 * FIXME: we need to check for rx_pkt_len validity
+	 * Check for rx_pkt_len validity. Return if invalid, leaving
+	 * rxdesc->size zeroed out by the upper level.
 	 */
+	if (unlikely(rx_pkt_len == 0 ||
+			rx_pkt_len > entry->queue->data_size)) {
+		ERROR(entry->queue->rt2x00dev,
+			"Bad frame size %d, forcing to 0\n", rx_pkt_len);
+		return;
+	}
+
 	rxd = (__le32 *)(entry->skb->data + rx_pkt_len);
 
 	/*
@@ -722,64 +735,27 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 /*
  * Device probe functions.
  */
-static int rt2800usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
+static void rt2800usb_read_eeprom(struct rt2x00_dev *rt2x00dev)
 {
 	if (rt2800_efuse_detect(rt2x00dev))
 		rt2800_read_eeprom_efuse(rt2x00dev);
 	else
 		rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom,
 				      EEPROM_SIZE);
-
-	return rt2800_validate_eeprom(rt2x00dev);
 }
 
 static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
 
-	/*
-	 * Allocate eeprom data.
-	 */
-	retval = rt2800usb_validate_eeprom(rt2x00dev);
-	if (retval)
-		return retval;
-
-	retval = rt2800_init_eeprom(rt2x00dev);
+	retval = rt2800_probe_hw(rt2x00dev);
 	if (retval)
 		return retval;
 
 	/*
-	 * Initialize hw specifications.
+	 * Set txstatus timer function.
 	 */
-	retval = rt2800_probe_hw_mode(rt2x00dev);
-	if (retval)
-		return retval;
-
-	/*
-	 * This device has multiple filters for control frames
-	 * and has a separate filter for PS Poll frames.
-	 */
-	__set_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags);
-	__set_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags);
-
-	/*
-	 * This device requires firmware.
-	 */
-	__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_L2PAD, &rt2x00dev->cap_flags);
-	if (!modparam_nohwcrypt)
-		__set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
-	__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_TXSTATUS_FIFO, &rt2x00dev->cap_flags);
-	__set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags);
-
-	rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout,
-
-	/*
-	 * Set the rssi offset.
-	 */
-	rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
+	rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout;
 
 	/*
 	 * Overwrite TX done handler
@@ -825,6 +801,8 @@ static const struct rt2800_ops rt2800usb_rt2800_ops = {
 	.register_multiread	= rt2x00usb_register_multiread,
 	.register_multiwrite	= rt2x00usb_register_multiwrite,
 	.regbusy_read		= rt2x00usb_regbusy_read,
+	.read_eeprom		= rt2800usb_read_eeprom,
+	.hwcrypt_disabled	= rt2800usb_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800usb_write_firmware,
 	.drv_init_registers	= rt2800usb_init_registers,
 	.drv_get_txwi		= rt2800usb_get_txwi,
@@ -892,7 +870,6 @@ static const struct data_queue_desc rt2800usb_queue_bcn = {
 static const struct rt2x00_ops rt2800usb_ops = {
 	.name			= KBUILD_MODNAME,
 	.drv_data_size		= sizeof(struct rt2800_drv_data),
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 8,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
@@ -1157,6 +1134,8 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x1690, 0x0744) },
 	{ USB_DEVICE(0x1690, 0x0761) },
 	{ USB_DEVICE(0x1690, 0x0764) },
+	/* ASUS */
+	{ USB_DEVICE(0x0b05, 0x179d) },
 	/* Cisco */
 	{ USB_DEVICE(0x167b, 0x4001) },
 	/* EnGenius */
@@ -1222,7 +1201,6 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x0b05, 0x1760) },
 	{ USB_DEVICE(0x0b05, 0x1761) },
 	{ USB_DEVICE(0x0b05, 0x1790) },
-	{ USB_DEVICE(0x0b05, 0x179d) },
 	/* AzureWave */
 	{ USB_DEVICE(0x13d3, 0x3262) },
 	{ USB_DEVICE(0x13d3, 0x3284) },
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 8afb546c2b2..0751b35ef6d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -188,6 +188,7 @@ struct rt2x00_chip {
 #define RT3071		0x3071
 #define RT3090		0x3090	/* 2.4GHz PCIe */
 #define RT3290		0x3290
+#define RT3352		0x3352  /* WSOC */
 #define RT3390		0x3390
 #define RT3572		0x3572
 #define RT3593		0x3593
@@ -655,7 +656,6 @@ struct rt2x00lib_ops {
 struct rt2x00_ops {
 	const char *name;
 	const unsigned int drv_data_size;
-	const unsigned int max_sta_intf;
 	const unsigned int max_ap_intf;
 	const unsigned int eeprom_size;
 	const unsigned int rf_size;
@@ -741,6 +741,14 @@ enum rt2x00_capability_flags {
 };
 
 /*
+ * Interface combinations
+ */
+enum {
+	IF_COMB_AP = 0,
+	NUM_IF_COMB,
+};
+
+/*
  * rt2x00 device structure.
  */
 struct rt2x00_dev {
@@ -867,6 +875,12 @@ struct rt2x00_dev {
 	unsigned int intf_beaconing;
 
 	/*
+	 * Interface combinations
+	 */
+	struct ieee80211_iface_limit if_limits_ap;
+	struct ieee80211_iface_combination if_combinations[NUM_IF_COMB];
+
+	/*
 	 * Link quality
 	 */
 	struct link link;
@@ -1287,7 +1301,9 @@ void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp);
 /*
  * mac80211 handlers.
  */
-void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
+void rt2x00mac_tx(struct ieee80211_hw *hw,
+		  struct ieee80211_tx_control *control,
+		  struct sk_buff *skb);
 int rt2x00mac_start(struct ieee80211_hw *hw);
 void rt2x00mac_stop(struct ieee80211_hw *hw);
 int rt2x00mac_add_interface(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index a6b88bd4a1a..69097d1faeb 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -194,7 +194,7 @@ static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac,
 	 */
 	skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
 	while (skb) {
-		rt2x00mac_tx(rt2x00dev->hw, skb);
+		rt2x00mac_tx(rt2x00dev->hw, NULL, skb);
 		skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
 	}
 }
@@ -629,7 +629,7 @@ void rt2x00lib_rxdone(struct queue_entry *entry, gfp_t gfp)
 	 */
 	if (unlikely(rxdesc.size == 0 ||
 		     rxdesc.size > entry->queue->data_size)) {
-		WARNING(rt2x00dev, "Wrong frame size %d max %d.\n",
+		ERROR(rt2x00dev, "Wrong frame size %d max %d.\n",
 			rxdesc.size, entry->queue->data_size);
 		dev_kfree_skb(entry->skb);
 		goto renew_skb;
@@ -1118,6 +1118,34 @@ void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev)
 	rt2x00dev->intf_associated = 0;
 }
 
+static inline void rt2x00lib_set_if_combinations(struct rt2x00_dev *rt2x00dev)
+{
+	struct ieee80211_iface_limit *if_limit;
+	struct ieee80211_iface_combination *if_combination;
+
+	/*
+	 * Build up AP interface limits structure.
+	 */
+	if_limit = &rt2x00dev->if_limits_ap;
+	if_limit->max = rt2x00dev->ops->max_ap_intf;
+	if_limit->types = BIT(NL80211_IFTYPE_AP);
+
+	/*
+	 * Build up AP interface combinations structure.
+	 */
+	if_combination = &rt2x00dev->if_combinations[IF_COMB_AP];
+	if_combination->limits = if_limit;
+	if_combination->n_limits = 1;
+	if_combination->max_interfaces = if_limit->max;
+	if_combination->num_different_channels = 1;
+
+	/*
+	 * Finally, specify the possible combinations to mac80211.
+	 */
+	rt2x00dev->hw->wiphy->iface_combinations = rt2x00dev->if_combinations;
+	rt2x00dev->hw->wiphy->n_iface_combinations = 1;
+}
+
 /*
  * driver allocation handlers.
  */
@@ -1126,6 +1154,11 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
 	int retval = -ENOMEM;
 
 	/*
+	 * Set possible interface combinations.
+	 */
+	rt2x00lib_set_if_combinations(rt2x00dev);
+
+	/*
 	 * Allocate the driver data memory, if necessary.
 	 */
 	if (rt2x00dev->ops->drv_data_size > 0) {
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 4ff26c2159b..98a9e48f8e4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -99,7 +99,9 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 	return retval;
 }
 
-void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+void rt2x00mac_tx(struct ieee80211_hw *hw,
+		  struct ieee80211_tx_control *control,
+		  struct sk_buff *skb)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@@ -212,46 +214,6 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
 	    !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		return -ENODEV;
 
-	switch (vif->type) {
-	case NL80211_IFTYPE_AP:
-		/*
-		 * We don't support mixed combinations of
-		 * sta and ap interfaces.
-		 */
-		if (rt2x00dev->intf_sta_count)
-			return -ENOBUFS;
-
-		/*
-		 * Check if we exceeded the maximum amount
-		 * of supported interfaces.
-		 */
-		if (rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf)
-			return -ENOBUFS;
-
-		break;
-	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
-	case NL80211_IFTYPE_WDS:
-		/*
-		 * We don't support mixed combinations of
-		 * sta and ap interfaces.
-		 */
-		if (rt2x00dev->intf_ap_count)
-			return -ENOBUFS;
-
-		/*
-		 * Check if we exceeded the maximum amount
-		 * of supported interfaces.
-		 */
-		if (rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf)
-			return -ENOBUFS;
-
-		break;
-	default:
-		return -EINVAL;
-	}
-
 	/*
 	 * Loop through all beacon queues to find a free
 	 * entry. Since there are as much beacon entries
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index f7e74a0a775..e488b944a03 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -315,6 +315,7 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct rt2x00_dev *rt2x00dev,
 static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
 						struct sk_buff *skb,
 						struct txentry_desc *txdesc,
+						struct ieee80211_sta *sta,
 						const struct rt2x00_rate *hwrate)
 {
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@@ -322,11 +323,11 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct rt2x00_sta *sta_priv = NULL;
 
-	if (tx_info->control.sta) {
+	if (sta) {
 		txdesc->u.ht.mpdu_density =
-		    tx_info->control.sta->ht_cap.ampdu_density;
+		    sta->ht_cap.ampdu_density;
 
-		sta_priv = sta_to_rt2x00_sta(tx_info->control.sta);
+		sta_priv = sta_to_rt2x00_sta(sta);
 		txdesc->u.ht.wcid = sta_priv->wcid;
 	}
 
@@ -341,8 +342,8 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
 		 * MIMO PS should be set to 1 for STA's using dynamic SM PS
 		 * when using more then one tx stream (>MCS7).
 		 */
-		if (tx_info->control.sta && txdesc->u.ht.mcs > 7 &&
-		    ((tx_info->control.sta->ht_cap.cap &
+		if (sta && txdesc->u.ht.mcs > 7 &&
+		    ((sta->ht_cap.cap &
 		      IEEE80211_HT_CAP_SM_PS) >>
 		     IEEE80211_HT_CAP_SM_PS_SHIFT) ==
 		    WLAN_HT_CAP_SM_PS_DYNAMIC)
@@ -409,7 +410,8 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
 
 static void rt2x00queue_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
 					     struct sk_buff *skb,
-					     struct txentry_desc *txdesc)
+					     struct txentry_desc *txdesc,
+					     struct ieee80211_sta *sta)
 {
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
@@ -503,7 +505,7 @@ static void rt2x00queue_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
 
 	if (test_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags))
 		rt2x00queue_create_tx_descriptor_ht(rt2x00dev, skb, txdesc,
-						    hwrate);
+						   sta, hwrate);
 	else
 		rt2x00queue_create_tx_descriptor_plcp(rt2x00dev, skb, txdesc,
 						      hwrate);
@@ -595,7 +597,7 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
 	 * after that we are free to use the skb->cb array
 	 * for our information.
 	 */
-	rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc);
+	rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, NULL);
 
 	/*
 	 * All information is retrieved from the skb->cb array,
@@ -740,7 +742,7 @@ int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev,
 	 * after that we are free to use the skb->cb array
 	 * for our information.
 	 */
-	rt2x00queue_create_tx_descriptor(rt2x00dev, intf->beacon->skb, &txdesc);
+	rt2x00queue_create_tx_descriptor(rt2x00dev, intf->beacon->skb, &txdesc, NULL);
 
 	/*
 	 * Fill in skb descriptor
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index f32259686b4..d6582a2fa35 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -243,7 +243,7 @@ static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 	u32 reg;
 
 	rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
-	return rt2x00_get_field32(reg, MAC_CSR13_BIT5);
+	return rt2x00_get_field32(reg, MAC_CSR13_VAL5);
 }
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
@@ -715,11 +715,11 @@ static void rt61pci_config_antenna_2529_rx(struct rt2x00_dev *rt2x00dev,
 
 	rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
 
-	rt2x00_set_field32(&reg, MAC_CSR13_BIT4, p1);
-	rt2x00_set_field32(&reg, MAC_CSR13_BIT12, 0);
+	rt2x00_set_field32(&reg, MAC_CSR13_DIR4, 0);
+	rt2x00_set_field32(&reg, MAC_CSR13_VAL4, p1);
 
-	rt2x00_set_field32(&reg, MAC_CSR13_BIT3, !p2);
-	rt2x00_set_field32(&reg, MAC_CSR13_BIT11, 0);
+	rt2x00_set_field32(&reg, MAC_CSR13_DIR3, 0);
+	rt2x00_set_field32(&reg, MAC_CSR13_VAL3, !p2);
 
 	rt2x00pci_register_write(rt2x00dev, MAC_CSR13, reg);
 }
@@ -2243,8 +2243,7 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
 
 static void rt61pci_wakeup(struct rt2x00_dev *rt2x00dev)
 {
-	struct ieee80211_conf conf = { .flags = 0 };
-	struct rt2x00lib_conf libconf = { .conf = &conf };
+	struct rt2x00lib_conf libconf = { .conf = &rt2x00dev->hw->conf };
 
 	rt61pci_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
 }
@@ -2833,6 +2832,7 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
+	u32 reg;
 
 	/*
 	 * Disable power saving.
@@ -2851,6 +2851,14 @@ static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
 		return retval;
 
 	/*
+	 * Enable rfkill polling by setting GPIO direction of the
+	 * rfkill switch GPIO pin correctly.
+	 */
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR13_DIR5, 1);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR13, reg);
+
+	/*
 	 * Initialize hw specifications.
 	 */
 	retval = rt61pci_probe_hw_mode(rt2x00dev);
@@ -3037,7 +3045,6 @@ static const struct data_queue_desc rt61pci_queue_bcn = {
 
 static const struct rt2x00_ops rt61pci_ops = {
 	.name			= KBUILD_MODNAME,
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 4,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
diff --git a/drivers/net/wireless/rt2x00/rt61pci.h b/drivers/net/wireless/rt2x00/rt61pci.h
index e3cd6db76b0..9bc6b6044e3 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.h
+++ b/drivers/net/wireless/rt2x00/rt61pci.h
@@ -357,21 +357,22 @@ struct hw_pairwise_ta_entry {
 
 /*
  * MAC_CSR13: GPIO.
+ *	MAC_CSR13_VALx: GPIO value
+ *	MAC_CSR13_DIRx: GPIO direction: 0 = output; 1 = input
  */
 #define MAC_CSR13			0x3034
-#define MAC_CSR13_BIT0			FIELD32(0x00000001)
-#define MAC_CSR13_BIT1			FIELD32(0x00000002)
-#define MAC_CSR13_BIT2			FIELD32(0x00000004)
-#define MAC_CSR13_BIT3			FIELD32(0x00000008)
-#define MAC_CSR13_BIT4			FIELD32(0x00000010)
-#define MAC_CSR13_BIT5			FIELD32(0x00000020)
-#define MAC_CSR13_BIT6			FIELD32(0x00000040)
-#define MAC_CSR13_BIT7			FIELD32(0x00000080)
-#define MAC_CSR13_BIT8			FIELD32(0x00000100)
-#define MAC_CSR13_BIT9			FIELD32(0x00000200)
-#define MAC_CSR13_BIT10			FIELD32(0x00000400)
-#define MAC_CSR13_BIT11			FIELD32(0x00000800)
-#define MAC_CSR13_BIT12			FIELD32(0x00001000)
+#define MAC_CSR13_VAL0			FIELD32(0x00000001)
+#define MAC_CSR13_VAL1			FIELD32(0x00000002)
+#define MAC_CSR13_VAL2			FIELD32(0x00000004)
+#define MAC_CSR13_VAL3			FIELD32(0x00000008)
+#define MAC_CSR13_VAL4			FIELD32(0x00000010)
+#define MAC_CSR13_VAL5			FIELD32(0x00000020)
+#define MAC_CSR13_DIR0			FIELD32(0x00000100)
+#define MAC_CSR13_DIR1			FIELD32(0x00000200)
+#define MAC_CSR13_DIR2			FIELD32(0x00000400)
+#define MAC_CSR13_DIR3			FIELD32(0x00000800)
+#define MAC_CSR13_DIR4			FIELD32(0x00001000)
+#define MAC_CSR13_DIR5			FIELD32(0x00002000)
 
 /*
  * MAC_CSR14: LED control register.
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index ba6e434b859..e5eb43b3eee 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -189,7 +189,7 @@ static int rt73usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 	u32 reg;
 
 	rt2x00usb_register_read(rt2x00dev, MAC_CSR13, &reg);
-	return rt2x00_get_field32(reg, MAC_CSR13_BIT7);
+	return rt2x00_get_field32(reg, MAC_CSR13_VAL7);
 }
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
@@ -2177,6 +2177,7 @@ static int rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
+	u32 reg;
 
 	/*
 	 * Allocate eeprom data.
@@ -2190,6 +2191,14 @@ static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
 		return retval;
 
 	/*
+	 * Enable rfkill polling by setting GPIO direction of the
+	 * rfkill switch GPIO pin correctly.
+	 */
+	rt2x00usb_register_read(rt2x00dev, MAC_CSR13, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR13_DIR7, 0);
+	rt2x00usb_register_write(rt2x00dev, MAC_CSR13, reg);
+
+	/*
 	 * Initialize hw specifications.
 	 */
 	retval = rt73usb_probe_hw_mode(rt2x00dev);
@@ -2373,7 +2382,6 @@ static const struct data_queue_desc rt73usb_queue_bcn = {
 
 static const struct rt2x00_ops rt73usb_ops = {
 	.name			= KBUILD_MODNAME,
-	.max_sta_intf		= 1,
 	.max_ap_intf		= 4,
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
diff --git a/drivers/net/wireless/rt2x00/rt73usb.h b/drivers/net/wireless/rt2x00/rt73usb.h
index 9f6b470414d..7577e0ba387 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.h
+++ b/drivers/net/wireless/rt2x00/rt73usb.h
@@ -267,21 +267,26 @@ struct hw_pairwise_ta_entry {
 
 /*
  * MAC_CSR13: GPIO.
+ *	MAC_CSR13_VALx: GPIO value
+ *	MAC_CSR13_DIRx: GPIO direction: 0 = input; 1 = output
  */
 #define MAC_CSR13			0x3034
-#define MAC_CSR13_BIT0			FIELD32(0x00000001)
-#define MAC_CSR13_BIT1			FIELD32(0x00000002)
-#define MAC_CSR13_BIT2			FIELD32(0x00000004)
-#define MAC_CSR13_BIT3			FIELD32(0x00000008)
-#define MAC_CSR13_BIT4			FIELD32(0x00000010)
-#define MAC_CSR13_BIT5			FIELD32(0x00000020)
-#define MAC_CSR13_BIT6			FIELD32(0x00000040)
-#define MAC_CSR13_BIT7			FIELD32(0x00000080)
-#define MAC_CSR13_BIT8			FIELD32(0x00000100)
-#define MAC_CSR13_BIT9			FIELD32(0x00000200)
-#define MAC_CSR13_BIT10			FIELD32(0x00000400)
-#define MAC_CSR13_BIT11			FIELD32(0x00000800)
-#define MAC_CSR13_BIT12			FIELD32(0x00001000)
+#define MAC_CSR13_VAL0			FIELD32(0x00000001)
+#define MAC_CSR13_VAL1			FIELD32(0x00000002)
+#define MAC_CSR13_VAL2			FIELD32(0x00000004)
+#define MAC_CSR13_VAL3			FIELD32(0x00000008)
+#define MAC_CSR13_VAL4			FIELD32(0x00000010)
+#define MAC_CSR13_VAL5			FIELD32(0x00000020)
+#define MAC_CSR13_VAL6			FIELD32(0x00000040)
+#define MAC_CSR13_VAL7			FIELD32(0x00000080)
+#define MAC_CSR13_DIR0			FIELD32(0x00000100)
+#define MAC_CSR13_DIR1			FIELD32(0x00000200)
+#define MAC_CSR13_DIR2			FIELD32(0x00000400)
+#define MAC_CSR13_DIR3			FIELD32(0x00000800)
+#define MAC_CSR13_DIR4			FIELD32(0x00001000)
+#define MAC_CSR13_DIR5			FIELD32(0x00002000)
+#define MAC_CSR13_DIR6			FIELD32(0x00004000)
+#define MAC_CSR13_DIR7			FIELD32(0x00008000)
 
 /*
  * MAC_CSR14: LED control register.
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c
index aceaf689f73..021d83e1b1d 100644
--- a/drivers/net/wireless/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c
@@ -244,7 +244,9 @@ static irqreturn_t rtl8180_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
+static void rtl8180_tx(struct ieee80211_hw *dev,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
@@ -710,7 +712,7 @@ static void rtl8180_beacon_work(struct work_struct *work)
 	/* TODO: use actual beacon queue */
 	skb_set_queue_mapping(skb, 0);
 
-	rtl8180_tx(dev, skb);
+	rtl8180_tx(dev, NULL, skb);
 
 resched:
 	/*
diff --git a/drivers/net/wireless/rtl818x/rtl8187/dev.c b/drivers/net/wireless/rtl818x/rtl8187/dev.c
index 71a30b02608..7811b631597 100644
--- a/drivers/net/wireless/rtl818x/rtl8187/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187/dev.c
@@ -44,7 +44,7 @@ MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver");
 MODULE_LICENSE("GPL");
 
-static struct usb_device_id rtl8187_table[] __devinitdata = {
+static struct usb_device_id rtl8187_table[] = {
 	/* Asus */
 	{USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187},
 	/* Belkin */
@@ -228,7 +228,9 @@ static void rtl8187_tx_cb(struct urb *urb)
 	}
 }
 
-static void rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
+static void rtl8187_tx(struct ieee80211_hw *dev,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
 {
 	struct rtl8187_priv *priv = dev->priv;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1076,7 +1078,7 @@ static void rtl8187_beacon_work(struct work_struct *work)
 	/* TODO: use actual beacon queue */
 	skb_set_queue_mapping(skb, 0);
 
-	rtl8187_tx(dev, skb);
+	rtl8187_tx(dev, NULL, skb);
 
 resched:
 	/*
diff --git a/drivers/net/wireless/rtlwifi/Kconfig b/drivers/net/wireless/rtlwifi/Kconfig
index cefac6a4360..6b28e92d1d2 100644
--- a/drivers/net/wireless/rtlwifi/Kconfig
+++ b/drivers/net/wireless/rtlwifi/Kconfig
@@ -1,6 +1,6 @@
 config RTL8192CE
 	tristate "Realtek RTL8192CE/RTL8188CE Wireless Network Adapter"
-	depends on MAC80211 && PCI && EXPERIMENTAL
+	depends on MAC80211 && PCI
 	select FW_LOADER
 	select RTLWIFI
 	select RTL8192C_COMMON
@@ -12,7 +12,7 @@ config RTL8192CE
 
 config RTL8192SE
 	tristate "Realtek RTL8192SE/RTL8191SE PCIe Wireless Network Adapter"
-	depends on MAC80211 && EXPERIMENTAL && PCI
+	depends on MAC80211 && PCI
 	select FW_LOADER
 	select RTLWIFI
 	---help---
@@ -23,7 +23,7 @@ config RTL8192SE
 
 config RTL8192DE
 	tristate "Realtek RTL8192DE/RTL8188DE PCIe Wireless Network Adapter"
-	depends on MAC80211 && EXPERIMENTAL && PCI
+	depends on MAC80211 && PCI
 	select FW_LOADER
 	select RTLWIFI
 	---help---
@@ -34,7 +34,7 @@ config RTL8192DE
 
 config RTL8192CU
 	tristate "Realtek RTL8192CU/RTL8188CU USB Wireless Network Adapter"
-	depends on MAC80211 && USB && EXPERIMENTAL
+	depends on MAC80211 && USB
 	select FW_LOADER
 	select RTLWIFI
 	select RTL8192C_COMMON
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index 942e56b77b6..59381fe8ed0 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -1341,9 +1341,8 @@ int rtl_send_smps_action(struct ieee80211_hw *hw,
 		rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
 
 		info->control.rates[0].idx = 0;
-		info->control.sta = sta;
 		info->band = hw->conf.channel->band;
-		rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
+		rtlpriv->intf_ops->adapter_tx(hw, sta, skb, &tcb_desc);
 	}
 err_free:
 	return 0;
diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c
index a18ad2a9893..a7c0e52869b 100644
--- a/drivers/net/wireless/rtlwifi/core.c
+++ b/drivers/net/wireless/rtlwifi/core.c
@@ -124,7 +124,9 @@ static void rtl_op_stop(struct ieee80211_hw *hw)
 	mutex_unlock(&rtlpriv->locks.conf_mutex);
 }
 
-static void rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void rtl_op_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_tx_control *control,
+		      struct sk_buff *skb)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
@@ -138,8 +140,8 @@ static void rtl_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
 		goto err_free;
 
-	if (!rtlpriv->intf_ops->waitq_insert(hw, skb))
-		rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
+	if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
+		rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
 
 	return;
 
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 80f75d3ba84..abc306b502a 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -372,13 +372,11 @@ static void rtl_pci_parse_configuration(struct pci_dev *pdev,
 	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 
 	u8 tmp;
-	int pos;
-	u8 linkctrl_reg;
+	u16 linkctrl_reg;
 
 	/*Link Control Register */
-	pos = pci_pcie_cap(pdev);
-	pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg);
-	pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg;
+	pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &linkctrl_reg);
+	pcipriv->ndis_adapter.linkctrl_reg = (u8)linkctrl_reg;
 
 	RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "Link Control Register =%x\n",
 		 pcipriv->ndis_adapter.linkctrl_reg);
@@ -504,7 +502,7 @@ static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw)
 				_rtl_update_earlymode_info(hw, skb,
 							   &tcb_desc, tid);
 
-			rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
+			rtlpriv->intf_ops->adapter_tx(hw, NULL, skb, &tcb_desc);
 		}
 	}
 }
@@ -929,7 +927,7 @@ static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
 	info = IEEE80211_SKB_CB(pskb);
 	pdesc = &ring->desc[0];
 	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
-		info, pskb, BEACON_QUEUE, &tcb_desc);
+		info, NULL, pskb, BEACON_QUEUE, &tcb_desc);
 
 	__skb_queue_tail(&ring->queue, pskb);
 
@@ -1305,11 +1303,10 @@ int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
 }
 
 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
+					struct ieee80211_sta *sta,
 					struct sk_buff *skb)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_sta *sta = info->control.sta;
 	struct rtl_sta_info *sta_entry = NULL;
 	u8 tid = rtl_get_tid(skb);
 
@@ -1337,13 +1334,14 @@ static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
 	return true;
 }
 
-static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
-		struct rtl_tcb_desc *ptcb_desc)
+static int rtl_pci_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_sta *sta,
+		      struct sk_buff *skb,
+		      struct rtl_tcb_desc *ptcb_desc)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_sta_info *sta_entry = NULL;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_sta *sta = info->control.sta;
 	struct rtl8192_tx_ring *ring;
 	struct rtl_tx_desc *pdesc;
 	u8 idx;
@@ -1418,7 +1416,7 @@ static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
 		rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
 
 	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc,
-			info, skb, hw_queue, ptcb_desc);
+			info, sta, skb, hw_queue, ptcb_desc);
 
 	__skb_queue_tail(&ring->queue, skb);
 
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
index a45afda8259..1ca4e25c143 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
@@ -167,7 +167,7 @@ static void rtl92c_dm_diginit(struct ieee80211_hw *hw)
 	dm_digtable->dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
 	dm_digtable->cur_igvalue = 0x20;
 	dm_digtable->pre_igvalue = 0x0;
-	dm_digtable->cursta_connectctate = DIG_STA_DISCONNECT;
+	dm_digtable->cursta_connectstate = DIG_STA_DISCONNECT;
 	dm_digtable->presta_connectstate = DIG_STA_DISCONNECT;
 	dm_digtable->curmultista_connectstate = DIG_MULTISTA_DISCONNECT;
 	dm_digtable->rssi_lowthresh = DM_DIG_THRESH_LOW;
@@ -190,7 +190,7 @@ static u8 rtl92c_dm_initial_gain_min_pwdb(struct ieee80211_hw *hw)
 	long rssi_val_min = 0;
 
 	if ((dm_digtable->curmultista_connectstate == DIG_MULTISTA_CONNECT) &&
-	    (dm_digtable->cursta_connectctate == DIG_STA_CONNECT)) {
+	    (dm_digtable->cursta_connectstate == DIG_STA_CONNECT)) {
 		if (rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb != 0)
 			rssi_val_min =
 			    (rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb >
@@ -199,8 +199,8 @@ static u8 rtl92c_dm_initial_gain_min_pwdb(struct ieee80211_hw *hw)
 			    rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb;
 		else
 			rssi_val_min = rtlpriv->dm.undecorated_smoothed_pwdb;
-	} else if (dm_digtable->cursta_connectctate == DIG_STA_CONNECT ||
-		   dm_digtable->cursta_connectctate == DIG_STA_BEFORE_CONNECT) {
+	} else if (dm_digtable->cursta_connectstate == DIG_STA_CONNECT ||
+		   dm_digtable->cursta_connectstate == DIG_STA_BEFORE_CONNECT) {
 		rssi_val_min = rtlpriv->dm.undecorated_smoothed_pwdb;
 	} else if (dm_digtable->curmultista_connectstate ==
 		   DIG_MULTISTA_CONNECT) {
@@ -334,7 +334,7 @@ static void rtl92c_dm_initial_gain_multi_sta(struct ieee80211_hw *hw)
 		multi_sta = true;
 
 	if (!multi_sta ||
-	    dm_digtable->cursta_connectctate != DIG_STA_DISCONNECT) {
+	    dm_digtable->cursta_connectstate != DIG_STA_DISCONNECT) {
 		initialized = false;
 		dm_digtable->dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
 		return;
@@ -378,15 +378,15 @@ static void rtl92c_dm_initial_gain_sta(struct ieee80211_hw *hw)
 	struct dig_t *dm_digtable = &rtlpriv->dm_digtable;
 
 	RT_TRACE(rtlpriv, COMP_DIG, DBG_TRACE,
-		 "presta_connectstate = %x, cursta_connectctate = %x\n",
+		 "presta_connectstate = %x, cursta_connectstate = %x\n",
 		 dm_digtable->presta_connectstate,
-		 dm_digtable->cursta_connectctate);
+		 dm_digtable->cursta_connectstate);
 
-	if (dm_digtable->presta_connectstate == dm_digtable->cursta_connectctate
-	    || dm_digtable->cursta_connectctate == DIG_STA_BEFORE_CONNECT
-	    || dm_digtable->cursta_connectctate == DIG_STA_CONNECT) {
+	if (dm_digtable->presta_connectstate == dm_digtable->cursta_connectstate
+	    || dm_digtable->cursta_connectstate == DIG_STA_BEFORE_CONNECT
+	    || dm_digtable->cursta_connectstate == DIG_STA_CONNECT) {
 
-		if (dm_digtable->cursta_connectctate != DIG_STA_DISCONNECT) {
+		if (dm_digtable->cursta_connectstate != DIG_STA_DISCONNECT) {
 			dm_digtable->rssi_val_min =
 			    rtl92c_dm_initial_gain_min_pwdb(hw);
 			rtl92c_dm_ctrl_initgain_by_rssi(hw);
@@ -407,7 +407,7 @@ static void rtl92c_dm_cck_packet_detection_thresh(struct ieee80211_hw *hw)
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 	struct dig_t *dm_digtable = &rtlpriv->dm_digtable;
 
-	if (dm_digtable->cursta_connectctate == DIG_STA_CONNECT) {
+	if (dm_digtable->cursta_connectstate == DIG_STA_CONNECT) {
 		dm_digtable->rssi_val_min = rtl92c_dm_initial_gain_min_pwdb(hw);
 
 		if (dm_digtable->pre_cck_pd_state == CCK_PD_STAGE_LowRssi) {
@@ -484,15 +484,15 @@ static void rtl92c_dm_ctrl_initgain_by_twoport(struct ieee80211_hw *hw)
 		return;
 
 	if (mac->link_state >= MAC80211_LINKED)
-		dm_digtable->cursta_connectctate = DIG_STA_CONNECT;
+		dm_digtable->cursta_connectstate = DIG_STA_CONNECT;
 	else
-		dm_digtable->cursta_connectctate = DIG_STA_DISCONNECT;
+		dm_digtable->cursta_connectstate = DIG_STA_DISCONNECT;
 
 	rtl92c_dm_initial_gain_sta(hw);
 	rtl92c_dm_initial_gain_multi_sta(hw);
 	rtl92c_dm_cck_packet_detection_thresh(hw);
 
-	dm_digtable->presta_connectstate = dm_digtable->cursta_connectctate;
+	dm_digtable->presta_connectstate = dm_digtable->cursta_connectstate;
 
 }
 
@@ -1214,18 +1214,13 @@ static void rtl92c_dm_refresh_rate_adaptive_mask(struct ieee80211_hw *hw)
 				 "PreState = %d, CurState = %d\n",
 				 p_ra->pre_ratr_state, p_ra->ratr_state);
 
-			/* Only the PCI card uses sta in the update rate table
-			 * callback routine */
-			if (rtlhal->interface == INTF_PCI) {
-				rcu_read_lock();
-				sta = ieee80211_find_sta(mac->vif, mac->bssid);
-			}
+			rcu_read_lock();
+			sta = ieee80211_find_sta(mac->vif, mac->bssid);
 			rtlpriv->cfg->ops->update_rate_tbl(hw, sta,
 					p_ra->ratr_state);
 
 			p_ra->pre_ratr_state = p_ra->ratr_state;
-			if (rtlhal->interface == INTF_PCI)
-				rcu_read_unlock();
+			rcu_read_unlock();
 		}
 	}
 }
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
index 44febfde949..883f23ae951 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
@@ -315,7 +315,7 @@ static void _rtl92c_fill_h2c_command(struct ieee80211_hw *hw,
 	u16 box_reg = 0, box_extreg = 0;
 	u8 u1b_tmp;
 	bool isfw_read = false;
-	bool bwrite_sucess = false;
+	bool bwrite_success = false;
 	u8 wait_h2c_limmit = 100;
 	u8 wait_writeh2c_limmit = 100;
 	u8 boxcontent[4], boxextcontent[2];
@@ -354,7 +354,7 @@ static void _rtl92c_fill_h2c_command(struct ieee80211_hw *hw,
 		}
 	}
 
-	while (!bwrite_sucess) {
+	while (!bwrite_success) {
 		wait_writeh2c_limmit--;
 		if (wait_writeh2c_limmit == 0) {
 			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
@@ -491,7 +491,7 @@ static void _rtl92c_fill_h2c_command(struct ieee80211_hw *hw,
 			break;
 		}
 
-		bwrite_sucess = true;
+		bwrite_success = true;
 
 		rtlhal->last_hmeboxnum = boxnum + 1;
 		if (rtlhal->last_hmeboxnum == 4)
@@ -577,8 +577,7 @@ static bool _rtl92c_cmd_send_packet(struct ieee80211_hw *hw,
 	ring = &rtlpci->tx_ring[BEACON_QUEUE];
 
 	pskb = __skb_dequeue(&ring->queue);
-	if (pskb)
-		kfree_skb(pskb);
+	kfree_skb(pskb);
 
 	spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
 
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/def.h b/drivers/net/wireless/rtlwifi/rtl8192ce/def.h
index 04c3aef8a4f..2925094b2d9 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/def.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/def.h
@@ -117,6 +117,7 @@
 
 #define CHIP_VER_B			BIT(4)
 #define CHIP_92C_BITMASK		BIT(0)
+#define CHIP_UNKNOWN			BIT(7)
 #define CHIP_92C_1T2R			0x03
 #define CHIP_92C			0x01
 #define CHIP_88C			0x00
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
index bd0da7ef290..86d73b32d99 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
@@ -994,8 +994,16 @@ static enum version_8192c _rtl92ce_read_chip_version(struct ieee80211_hw *hw)
 		version = (value32 & TYPE_ID) ? VERSION_A_CHIP_92C :
 			   VERSION_A_CHIP_88C;
 	} else {
-		version = (value32 & TYPE_ID) ? VERSION_B_CHIP_92C :
-			   VERSION_B_CHIP_88C;
+		version = (enum version_8192c) (CHIP_VER_B |
+				((value32 & TYPE_ID) ? CHIP_92C_BITMASK : 0) |
+				((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0));
+		if ((!IS_CHIP_VENDOR_UMC(version)) && (value32 &
+		     CHIP_VER_RTL_MASK)) {
+			version = (enum version_8192c)(version |
+				   ((((value32 & CHIP_VER_RTL_MASK) == BIT(12))
+				   ? CHIP_VENDOR_UMC_B_CUT : CHIP_UNKNOWN) |
+				   CHIP_VENDOR_UMC));
+		}
 	}
 
 	switch (version) {
@@ -1906,8 +1914,8 @@ static void rtl92ce_update_hal_rate_mask(struct ieee80211_hw *hw,
 	}
 	RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG,
 		 "ratr_bitmap :%x\n", ratr_bitmap);
-	*(u32 *)&rate_mask = EF4BYTE((ratr_bitmap & 0x0fffffff) |
-				     (ratr_index << 28));
+	*(u32 *)&rate_mask = (ratr_bitmap & 0x0fffffff) |
+				     (ratr_index << 28);
 	rate_mask[4] = macid | (shortgi ? 0x20 : 0x00) | 0x80;
 	RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG,
 		 "Rate_index:%x, ratr_val:%x, %x:%x:%x:%x:%x\n",
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
index 3aa927f8b9b..ea2e1bd847c 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
@@ -162,10 +162,12 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
 
 	/* request fw */
 	if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
-	    !IS_92C_SERIAL(rtlhal->version))
+	    !IS_92C_SERIAL(rtlhal->version)) {
 		rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU.bin";
-	else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version))
+	} else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version)) {
 		rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU_B.bin";
+		pr_info("****** This B_CUT device may not work with kernels 3.6 and earlier\n");
+	}
 
 	rtlpriv->max_fw_size = 0x4000;
 	pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
@@ -342,7 +344,7 @@ static struct rtl_hal_cfg rtl92ce_hal_cfg = {
 	.maps[RTL_RC_HT_RATEMCS15] = DESC92_RATEMCS15,
 };
 
-DEFINE_PCI_DEVICE_TABLE(rtl92ce_pci_ids) = {
+static DEFINE_PCI_DEVICE_TABLE(rtl92ce_pci_ids) = {
 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8191, rtl92ce_hal_cfg)},
 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8178, rtl92ce_hal_cfg)},
 	{RTL_PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8177, rtl92ce_hal_cfg)},
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
index 52166640f16..390d6d4fcaa 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
@@ -596,7 +596,9 @@ bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 
 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
-			  struct ieee80211_tx_info *info, struct sk_buff *skb,
+			  struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
+			  struct sk_buff *skb,
 			  u8 hw_queue, struct rtl_tcb_desc *tcb_desc)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
@@ -604,7 +606,6 @@ void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 	bool defaultadapter = true;
-	struct ieee80211_sta *sta;
 	u8 *pdesc = pdesc_tx;
 	u16 seq_number;
 	__le16 fc = hdr->frame_control;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.h b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.h
index c4adb977736..a7cdd514cb2 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.h
@@ -713,6 +713,7 @@ struct rx_desc_92c {
 void rtl92ce_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct ieee80211_hdr *hdr,
 			  u8 *pdesc, struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
 			  struct sk_buff *skb, u8 hw_queue,
 			  struct rtl_tcb_desc *ptcb_desc);
 bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
index 2e6eb356a93..6e66f04c363 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -491,12 +491,14 @@ static void _rtl_tx_desc_checksum(u8 *txdesc)
 	SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, 0);
 	for (index = 0; index < 16; index++)
 		checksum = checksum ^ (*(ptr + index));
-	SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, cpu_to_le16(checksum));
+	SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, checksum);
 }
 
 void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
-			  struct ieee80211_tx_info *info, struct sk_buff *skb,
+			  struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
+			  struct sk_buff *skb,
 			  u8 queue_index,
 			  struct rtl_tcb_desc *tcb_desc)
 {
@@ -504,7 +506,6 @@ void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 	bool defaultadapter = true;
-	struct ieee80211_sta *sta = info->control.sta = info->control.sta;
 	u8 *qc = ieee80211_get_qos_ctl(hdr);
 	u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
 	u16 seq_number;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h
index 332b06e78b0..725c53accc5 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.h
@@ -420,7 +420,9 @@ struct sk_buff *rtl8192c_tx_aggregate_hdl(struct ieee80211_hw *,
 					   struct sk_buff_head *);
 void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
-			  struct ieee80211_tx_info *info, struct sk_buff *skb,
+			  struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
+			  struct sk_buff *skb,
 			  u8 queue_index,
 			  struct rtl_tcb_desc *tcb_desc);
 void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 * pDesc,
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/dm.c b/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
index c0201ed69dd..ed868c396c2 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
@@ -164,7 +164,7 @@ static void rtl92d_dm_diginit(struct ieee80211_hw *hw)
 	de_digtable->dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
 	de_digtable->cur_igvalue = 0x20;
 	de_digtable->pre_igvalue = 0x0;
-	de_digtable->cursta_connectctate = DIG_STA_DISCONNECT;
+	de_digtable->cursta_connectstate = DIG_STA_DISCONNECT;
 	de_digtable->presta_connectstate = DIG_STA_DISCONNECT;
 	de_digtable->curmultista_connectstate = DIG_MULTISTA_DISCONNECT;
 	de_digtable->rssi_lowthresh = DM_DIG_THRESH_LOW;
@@ -310,7 +310,7 @@ static void rtl92d_dm_cck_packet_detection_thresh(struct ieee80211_hw *hw)
 	struct dig_t *de_digtable = &rtlpriv->dm_digtable;
 	unsigned long flag = 0;
 
-	if (de_digtable->cursta_connectctate == DIG_STA_CONNECT) {
+	if (de_digtable->cursta_connectstate == DIG_STA_CONNECT) {
 		if (de_digtable->pre_cck_pd_state == CCK_PD_STAGE_LOWRSSI) {
 			if (de_digtable->min_undecorated_pwdb_for_dm <= 25)
 				de_digtable->cur_cck_pd_state =
@@ -342,7 +342,7 @@ static void rtl92d_dm_cck_packet_detection_thresh(struct ieee80211_hw *hw)
 		de_digtable->pre_cck_pd_state = de_digtable->cur_cck_pd_state;
 	}
 	RT_TRACE(rtlpriv, COMP_DIG, DBG_LOUD, "CurSTAConnectState=%s\n",
-		 de_digtable->cursta_connectctate == DIG_STA_CONNECT ?
+		 de_digtable->cursta_connectstate == DIG_STA_CONNECT ?
 		 "DIG_STA_CONNECT " : "DIG_STA_DISCONNECT");
 	RT_TRACE(rtlpriv, COMP_DIG, DBG_LOUD, "CCKPDStage=%s\n",
 		 de_digtable->cur_cck_pd_state == CCK_PD_STAGE_LOWRSSI ?
@@ -428,9 +428,9 @@ static void rtl92d_dm_dig(struct ieee80211_hw *hw)
 	RT_TRACE(rtlpriv, COMP_DIG, DBG_LOUD, "progress\n");
 	/* Decide the current status and if modify initial gain or not */
 	if (rtlpriv->mac80211.link_state >= MAC80211_LINKED)
-		de_digtable->cursta_connectctate = DIG_STA_CONNECT;
+		de_digtable->cursta_connectstate = DIG_STA_CONNECT;
 	else
-		de_digtable->cursta_connectctate = DIG_STA_DISCONNECT;
+		de_digtable->cursta_connectstate = DIG_STA_DISCONNECT;
 
 	/* adjust initial gain according to false alarm counter */
 	if (falsealm_cnt->cnt_all < DM_DIG_FA_TH0)
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c
index 895ae6c1f35..23177076b97 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c
@@ -365,7 +365,7 @@ static void _rtl92d_fill_h2c_command(struct ieee80211_hw *hw,
 	u8 u1b_tmp;
 	bool isfw_read = false;
 	u8 buf_index = 0;
-	bool bwrite_sucess = false;
+	bool bwrite_success = false;
 	u8 wait_h2c_limmit = 100;
 	u8 wait_writeh2c_limmit = 100;
 	u8 boxcontent[4], boxextcontent[2];
@@ -408,7 +408,7 @@ static void _rtl92d_fill_h2c_command(struct ieee80211_hw *hw,
 			break;
 		}
 	}
-	while (!bwrite_sucess) {
+	while (!bwrite_success) {
 		wait_writeh2c_limmit--;
 		if (wait_writeh2c_limmit == 0) {
 			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
@@ -515,7 +515,7 @@ static void _rtl92d_fill_h2c_command(struct ieee80211_hw *hw,
 				 "switch case not processed\n");
 			break;
 		}
-		bwrite_sucess = true;
+		bwrite_success = true;
 		rtlhal->last_hmeboxnum = boxnum + 1;
 		if (rtlhal->last_hmeboxnum == 4)
 			rtlhal->last_hmeboxnum = 0;
@@ -570,8 +570,7 @@ static bool _rtl92d_cmd_send_packet(struct ieee80211_hw *hw,
 
 	ring = &rtlpci->tx_ring[BEACON_QUEUE];
 	pskb = __skb_dequeue(&ring->queue);
-	if (pskb)
-		kfree_skb(pskb);
+	kfree_skb(pskb);
 	spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
 	pdesc = &ring->desc[idx];
 	/* discard output from call below */
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
index 442031256bc..db0086062d0 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
@@ -1314,7 +1314,7 @@ static void _rtl92d_phy_restore_rf_env(struct ieee80211_hw *hw, u8 rfpath,
 	struct bb_reg_def *pphyreg = &rtlphy->phyreg_def[rfpath];
 
 	RT_TRACE(rtlpriv, COMP_RF, DBG_LOUD, "=====>\n");
-	/*----Restore RFENV control type----*/ ;
+	/*----Restore RFENV control type----*/
 	switch (rfpath) {
 	case RF90_PATH_A:
 	case RF90_PATH_C:
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
index f80690d82c1..4686f340b9d 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
@@ -551,7 +551,9 @@ static void _rtl92de_insert_emcontent(struct rtl_tcb_desc *ptcb_desc,
 
 void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
-			  struct ieee80211_tx_info *info, struct sk_buff *skb,
+			  struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
+			  struct sk_buff *skb,
 			  u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
@@ -559,7 +561,6 @@ void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
-	struct ieee80211_sta *sta = info->control.sta;
 	u8 *pdesc = pdesc_tx;
 	u16 seq_number;
 	__le16 fc = hdr->frame_control;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/trx.h b/drivers/net/wireless/rtlwifi/rtl8192de/trx.h
index 057a52431b0..c1b5dfb79d5 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/trx.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/trx.h
@@ -730,6 +730,7 @@ struct rx_desc_92d {
 void rtl92de_tx_fill_desc(struct ieee80211_hw *hw,
 			  struct ieee80211_hdr *hdr,
 			  u8 *pdesc, struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
 			  struct sk_buff *skb, u8 hw_queue,
 			  struct rtl_tcb_desc *ptcb_desc);
 bool rtl92de_rx_query_desc(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
index 36d1cb3aef8..e3cf4c02122 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
@@ -591,14 +591,15 @@ bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 
 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
 		struct ieee80211_hdr *hdr, u8 *pdesc_tx,
-		struct ieee80211_tx_info *info, struct sk_buff *skb,
+		struct ieee80211_tx_info *info,
+		struct ieee80211_sta *sta,
+		struct sk_buff *skb,
 		u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	struct ieee80211_sta *sta = info->control.sta;
 	u8 *pdesc = pdesc_tx;
 	u16 seq_number;
 	__le16 fc = hdr->frame_control;
@@ -755,7 +756,7 @@ void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
 	SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
 
 	/* DOWRD 8 */
-	SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
+	SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 
 	RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
 }
@@ -785,7 +786,7 @@ void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 		/* 92SE need not to set TX packet size when firmware download */
 		SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
 		SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
-		SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
+		SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 
 		wmb();
 		SET_TX_DESC_OWN(pdesc, 1);
@@ -804,7 +805,7 @@ void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 		SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
 
 		SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
-		SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, cpu_to_le32(mapping));
+		SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
 
 		wmb();
 		SET_TX_DESC_OWN(pdesc, 1);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/trx.h b/drivers/net/wireless/rtlwifi/rtl8192se/trx.h
index 011e7b0695f..64dd66f287c 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/trx.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/trx.h
@@ -31,6 +31,7 @@
 
 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
 			  u8 *pdesc, struct ieee80211_tx_info *info,
+			  struct ieee80211_sta *sta,
 			  struct sk_buff *skb, u8 hw_queue,
 			  struct rtl_tcb_desc *ptcb_desc);
 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc, bool firstseg,
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index aa970fc18a2..030beb45d8b 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -120,7 +120,7 @@ static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
 
 	if (status < 0 && count++ < 4)
 		pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
-		       value, status, le32_to_cpu(*(u32 *)pdata));
+		       value, status, *(u32 *)pdata);
 	return status;
 }
 
@@ -848,8 +848,10 @@ static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
 	_rtl_submit_tx_urb(hw, _urb);
 }
 
-static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, struct sk_buff *skb,
-			    u16 hw_queue)
+static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw,
+				   struct ieee80211_sta *sta,
+				   struct sk_buff *skb,
+				   u16 hw_queue)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
@@ -891,7 +893,7 @@ static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, struct sk_buff *skb,
 		seq_number += 1;
 		seq_number <<= 4;
 	}
-	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, info, skb,
+	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, info, sta, skb,
 					hw_queue, &tcb_desc);
 	if (!ieee80211_has_morefrags(hdr->frame_control)) {
 		if (qc)
@@ -901,7 +903,9 @@ static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, struct sk_buff *skb,
 		rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
 }
 
-static int rtl_usb_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+static int rtl_usb_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_sta *sta,
+		      struct sk_buff *skb,
 		      struct rtl_tcb_desc *dummy)
 {
 	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
@@ -913,7 +917,7 @@ static int rtl_usb_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
 	if (unlikely(is_hal_stop(rtlhal)))
 		goto err_free;
 	hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
-	_rtl_usb_tx_preprocess(hw, skb, hw_queue);
+	_rtl_usb_tx_preprocess(hw, sta, skb, hw_queue);
 	_rtl_usb_transmit(hw, skb, hw_queue);
 	return NETDEV_TX_OK;
 
@@ -923,6 +927,7 @@ err_free:
 }
 
 static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
+					struct ieee80211_sta *sta,
 					struct sk_buff *skb)
 {
 	return false;
diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
index cdaa21f2971..f1b6bc693b0 100644
--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -122,7 +122,7 @@ enum rt_eeprom_type {
 	EEPROM_BOOT_EFUSE,
 };
 
-enum rtl_status {
+enum ttl_status {
 	RTL_STATUS_INTERFACE_START = 0,
 };
 
@@ -135,7 +135,7 @@ enum hardware_type {
 	HARDWARE_TYPE_RTL8192CU,
 	HARDWARE_TYPE_RTL8192DE,
 	HARDWARE_TYPE_RTL8192DU,
-	HARDWARE_TYPE_RTL8723E,
+	HARDWARE_TYPE_RTL8723AE,
 	HARDWARE_TYPE_RTL8723U,
 
 	/* keep it last */
@@ -389,6 +389,7 @@ enum rt_enc_alg {
 	RSERVED_ENCRYPTION = 3,
 	AESCCMP_ENCRYPTION = 4,
 	WEP104_ENCRYPTION = 5,
+	AESCMAC_ENCRYPTION = 6,	/*IEEE802.11w */
 };
 
 enum rtl_hal_state {
@@ -873,6 +874,7 @@ struct rtl_phy {
 	u32 adda_backup[16];
 	u32 iqk_mac_backup[IQK_MAC_REG_NUM];
 	u32 iqk_bb_backup[10];
+	bool iqk_initialized;
 
 	/* Dual mac */
 	bool need_iqk;
@@ -910,6 +912,8 @@ struct rtl_phy {
 #define RTL_AGG_OPERATIONAL			3
 #define RTL_AGG_OFF				0
 #define RTL_AGG_ON				1
+#define RTL_RX_AGG_START			1
+#define RTL_RX_AGG_STOP				0
 #define RTL_AGG_EMPTYING_HW_QUEUE_ADDBA		2
 #define RTL_AGG_EMPTYING_HW_QUEUE_DELBA		3
 
@@ -920,6 +924,7 @@ struct rtl_ht_agg {
 	u64 bitmap;
 	u32 rate_n_flags;
 	u8 agg_state;
+	u8 rx_agg_state;
 };
 
 struct rtl_tid_data {
@@ -927,11 +932,19 @@ struct rtl_tid_data {
 	struct rtl_ht_agg agg;
 };
 
+struct rssi_sta {
+	long undecorated_smoothed_pwdb;
+};
+
 struct rtl_sta_info {
+	struct list_head list;
 	u8 ratr_index;
 	u8 wireless_mode;
 	u8 mimo_ps;
 	struct rtl_tid_data tids[MAX_TID_COUNT];
+
+	/* just used for ap adhoc or mesh*/
+	struct rssi_sta rssi_stat;
 } __packed;
 
 struct rtl_priv;
@@ -1034,6 +1047,11 @@ struct rtl_mac {
 struct rtl_hal {
 	struct ieee80211_hw *hw;
 
+	bool up_first_time;
+	bool first_init;
+	bool being_init_adapter;
+	bool bbrf_ready;
+
 	enum intf_type interface;
 	u16 hw_type;		/*92c or 92d or 92s and so on */
 	u8 ic_class;
@@ -1048,6 +1066,7 @@ struct rtl_hal {
 	u16 fw_subversion;
 	bool h2c_setinprogress;
 	u8 last_hmeboxnum;
+	bool fw_ready;
 	/*Reserve page start offset except beacon in TxQ. */
 	u8 fw_rsvdpage_startoffset;
 	u8 h2c_txcmd_seq;
@@ -1083,6 +1102,8 @@ struct rtl_hal {
 	bool load_imrandiqk_setting_for2g;
 
 	bool disable_amsdu_8k;
+	bool master_of_dmsp;
+	bool slave_of_dmsp;
 };
 
 struct rtl_security {
@@ -1144,6 +1165,9 @@ struct rtl_dm {
 	bool disable_tx_int;
 	char ofdm_index[2];
 	char cck_index;
+
+	/* DMSP */
+	bool supp_phymode_switch;
 };
 
 #define	EFUSE_MAX_LOGICAL_SIZE			256
@@ -1337,6 +1361,10 @@ struct rtl_stats {
 };
 
 struct rt_link_detect {
+	/* count for roaming */
+	u32 bcn_rx_inperiod;
+	u32 roam_times;
+
 	u32 num_tx_in4period[4];
 	u32 num_rx_in4period[4];
 
@@ -1344,6 +1372,8 @@ struct rt_link_detect {
 	u32 num_rx_inperiod;
 
 	bool busytraffic;
+	bool tx_busy_traffic;
+	bool rx_busy_traffic;
 	bool higher_busytraffic;
 	bool higher_busyrxtraffic;
 
@@ -1418,6 +1448,7 @@ struct rtl_hal_ops {
 	void (*fill_tx_desc) (struct ieee80211_hw *hw,
 			      struct ieee80211_hdr *hdr, u8 *pdesc_tx,
 			      struct ieee80211_tx_info *info,
+			      struct ieee80211_sta *sta,
 			      struct sk_buff *skb, u8 hw_queue,
 			      struct rtl_tcb_desc *ptcb_desc);
 	void (*fill_fake_txdesc) (struct ieee80211_hw *hw, u8 *pDesc,
@@ -1454,7 +1485,12 @@ struct rtl_hal_ops {
 			  u32 regaddr, u32 bitmask);
 	void (*set_rfreg) (struct ieee80211_hw *hw, enum radio_path rfpath,
 			   u32 regaddr, u32 bitmask, u32 data);
+	void (*allow_all_destaddr)(struct ieee80211_hw *hw,
+		bool allow_all_da, bool write_into_reg);
 	void (*linked_set_reg) (struct ieee80211_hw *hw);
+	void (*check_switch_to_dmdp) (struct ieee80211_hw *hw);
+	void (*dualmac_easy_concurrent) (struct ieee80211_hw *hw);
+	void (*dualmac_switch_to_dmdp) (struct ieee80211_hw *hw);
 	bool (*phy_rf6052_config) (struct ieee80211_hw *hw);
 	void (*phy_rf6052_set_cck_txpower) (struct ieee80211_hw *hw,
 					    u8 *powerlevel);
@@ -1474,12 +1510,18 @@ struct rtl_intf_ops {
 	void (*read_efuse_byte)(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf);
 	int (*adapter_start) (struct ieee80211_hw *hw);
 	void (*adapter_stop) (struct ieee80211_hw *hw);
+	bool (*check_buddy_priv)(struct ieee80211_hw *hw,
+				 struct rtl_priv **buddy_priv);
 
-	int (*adapter_tx) (struct ieee80211_hw *hw, struct sk_buff *skb,
-			struct rtl_tcb_desc *ptcb_desc);
+	int (*adapter_tx) (struct ieee80211_hw *hw,
+			   struct ieee80211_sta *sta,
+			   struct sk_buff *skb,
+			   struct rtl_tcb_desc *ptcb_desc);
 	void (*flush)(struct ieee80211_hw *hw, bool drop);
 	int (*reset_trx_ring) (struct ieee80211_hw *hw);
-	bool (*waitq_insert) (struct ieee80211_hw *hw, struct sk_buff *skb);
+	bool (*waitq_insert) (struct ieee80211_hw *hw,
+			      struct ieee80211_sta *sta,
+			      struct sk_buff *skb);
 
 	/*pci */
 	void (*disable_aspm) (struct ieee80211_hw *hw);
@@ -1554,11 +1596,16 @@ struct rtl_locks {
 	spinlock_t h2c_lock;
 	spinlock_t rf_ps_lock;
 	spinlock_t rf_lock;
+	spinlock_t lps_lock;
 	spinlock_t waitq_lock;
+	spinlock_t entry_list_lock;
 	spinlock_t usb_lock;
 
 	/*Dual mac*/
 	spinlock_t cck_and_rw_pagea_lock;
+
+	/*Easy concurrent*/
+	spinlock_t check_sendpkt_lock;
 };
 
 struct rtl_works {
@@ -1566,6 +1613,7 @@ struct rtl_works {
 
 	/*timer */
 	struct timer_list watchdog_timer;
+	struct timer_list dualmac_easyconcurrent_retrytimer;
 
 	/*task */
 	struct tasklet_struct irq_tasklet;
@@ -1593,6 +1641,31 @@ struct rtl_debug {
 	char proc_name[20];
 };
 
+#define MIMO_PS_STATIC			0
+#define MIMO_PS_DYNAMIC			1
+#define MIMO_PS_NOLIMIT			3
+
+struct rtl_dualmac_easy_concurrent_ctl {
+	enum band_type currentbandtype_backfordmdp;
+	bool close_bbandrf_for_dmsp;
+	bool change_to_dmdp;
+	bool change_to_dmsp;
+	bool switch_in_process;
+};
+
+struct rtl_dmsp_ctl {
+	bool activescan_for_slaveofdmsp;
+	bool scan_for_anothermac_fordmsp;
+	bool scan_for_itself_fordmsp;
+	bool writedig_for_anothermacofdmsp;
+	u32 curdigvalue_for_anothermacofdmsp;
+	bool changecckpdstate_for_anothermacofdmsp;
+	u8 curcckpdstate_for_anothermacofdmsp;
+	bool changetxhighpowerlvl_for_anothermacofdmsp;
+	u8 curtxhighlvl_for_anothermacofdmsp;
+	long rssivalmin_for_anothermacofdmsp;
+};
+
 struct ps_t {
 	u8 pre_ccastate;
 	u8 cur_ccasate;
@@ -1619,7 +1692,7 @@ struct dig_t {
 	u8 dig_twoport_algorithm;
 	u8 dig_dbgmode;
 	u8 dig_slgorithm_switch;
-	u8 cursta_connectctate;
+	u8 cursta_connectstate;
 	u8 presta_connectstate;
 	u8 curmultista_connectstate;
 	char backoff_val;
@@ -1652,8 +1725,20 @@ struct dig_t {
 	char backoffval_range_min;
 };
 
+struct rtl_global_var {
+	/* from this list we can get
+	 * other adapter's rtl_priv */
+	struct list_head glb_priv_list;
+	spinlock_t glb_list_lock;
+};
+
 struct rtl_priv {
 	struct completion firmware_loading_complete;
+	struct list_head list;
+	struct rtl_priv *buddy_priv;
+	struct rtl_global_var *glb_var;
+	struct rtl_dualmac_easy_concurrent_ctl easy_concurrent_ctl;
+	struct rtl_dmsp_ctl dmsp_ctl;
 	struct rtl_locks locks;
 	struct rtl_works works;
 	struct rtl_mac mac80211;
@@ -1674,6 +1759,9 @@ struct rtl_priv {
 
 	struct rtl_rate_priv *rate_priv;
 
+	/* sta entry list for ap adhoc or mesh */
+	struct list_head entry_list;
+
 	struct rtl_debug dbg;
 	int max_fw_size;
 
@@ -1815,9 +1903,9 @@ struct bt_coexist_info {
 	EF1BYTE(*((u8 *)(_ptr)))
 /* Read le16 data from memory and convert to host ordering */
 #define READEF2BYTE(_ptr)	\
-	EF2BYTE(*((u16 *)(_ptr)))
+	EF2BYTE(*(_ptr))
 #define READEF4BYTE(_ptr)	\
-	EF4BYTE(*((u32 *)(_ptr)))
+	EF4BYTE(*(_ptr))
 
 /* Write data to memory */
 #define WRITEEF1BYTE(_ptr, _val)	\
@@ -1826,7 +1914,7 @@ struct bt_coexist_info {
 #define WRITEEF2BYTE(_ptr, _val)	\
 	(*((u16 *)(_ptr))) = EF2BYTE(_val)
 #define WRITEEF4BYTE(_ptr, _val)	\
-	(*((u16 *)(_ptr))) = EF2BYTE(_val)
+	(*((u32 *)(_ptr))) = EF2BYTE(_val)
 
 /* Create a bit mask
  * Examples:
@@ -1859,9 +1947,9 @@ struct bt_coexist_info {
  * 4-byte pointer in little-endian system.
  */
 #define LE_P4BYTE_TO_HOST_4BYTE(__pstart) \
-	(EF4BYTE(*((u32 *)(__pstart))))
+	(EF4BYTE(*((__le32 *)(__pstart))))
 #define LE_P2BYTE_TO_HOST_2BYTE(__pstart) \
-	(EF2BYTE(*((u16 *)(__pstart))))
+	(EF2BYTE(*((__le16 *)(__pstart))))
 #define LE_P1BYTE_TO_HOST_1BYTE(__pstart) \
 	(EF1BYTE(*((u8 *)(__pstart))))
 
@@ -1908,13 +1996,13 @@ value to host byte ordering.*/
  * Set subfield of little-endian 4-byte value to specified value.
  */
 #define SET_BITS_TO_LE_4BYTE(__pstart, __bitoffset, __bitlen, __val) \
-	*((u32 *)(__pstart)) = EF4BYTE \
+	*((u32 *)(__pstart)) = \
 	( \
 		LE_BITS_CLEARED_TO_4BYTE(__pstart, __bitoffset, __bitlen) | \
 		((((u32)__val) & BIT_LEN_MASK_32(__bitlen)) << (__bitoffset)) \
 	);
 #define SET_BITS_TO_LE_2BYTE(__pstart, __bitoffset, __bitlen, __val) \
-	*((u16 *)(__pstart)) = EF2BYTE \
+	*((u16 *)(__pstart)) = \
 	( \
 		LE_BITS_CLEARED_TO_2BYTE(__pstart, __bitoffset, __bitlen) | \
 		((((u16)__val) & BIT_LEN_MASK_16(__bitlen)) << (__bitoffset)) \
@@ -2100,4 +2188,11 @@ static inline struct ieee80211_sta *get_sta(struct ieee80211_hw *hw,
 	return ieee80211_find_sta(vif, bssid);
 }
 
+static inline struct ieee80211_sta *rtl_find_sta(struct ieee80211_hw *hw,
+		u8 *mac_addr)
+{
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	return ieee80211_find_sta(mac->vif, mac_addr);
+}
+
 #endif
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 3118c425bcf..441cbccbd38 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -354,7 +354,9 @@ out:
 	return ret;
 }
 
-static void wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void wl1251_op_tx(struct ieee80211_hw *hw,
+			 struct ieee80211_tx_control *control,
+			 struct sk_buff *skb)
 {
 	struct wl1251 *wl = hw->priv;
 	unsigned long flags;
diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index f429fc110cb..dadf1dbb002 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -32,7 +32,6 @@
 #include "../wlcore/acx.h"
 #include "../wlcore/tx.h"
 #include "../wlcore/rx.h"
-#include "../wlcore/io.h"
 #include "../wlcore/boot.h"
 
 #include "wl12xx.h"
@@ -1185,9 +1184,16 @@ static int wl12xx_enable_interrupts(struct wl1271 *wl)
 	ret = wlcore_write_reg(wl, REG_INTERRUPT_MASK,
 			       WL1271_ACX_INTR_ALL & ~(WL12XX_INTR_MASK));
 	if (ret < 0)
-		goto out;
+		goto disable_interrupts;
 
 	ret = wlcore_write32(wl, WL12XX_HI_CFG, HI_CFG_DEF_VAL);
+	if (ret < 0)
+		goto disable_interrupts;
+
+	return ret;
+
+disable_interrupts:
+	wlcore_disable_interrupts(wl);
 
 out:
 	return ret;
@@ -1583,7 +1589,10 @@ static int wl12xx_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 	return wlcore_set_key(wl, cmd, vif, sta, key_conf);
 }
 
+static int wl12xx_setup(struct wl1271 *wl);
+
 static struct wlcore_ops wl12xx_ops = {
+	.setup			= wl12xx_setup,
 	.identify_chip		= wl12xx_identify_chip,
 	.identify_fw		= wl12xx_identify_fw,
 	.boot			= wl12xx_boot,
@@ -1624,26 +1633,15 @@ static struct ieee80211_sta_ht_cap wl12xx_ht_cap = {
 		},
 };
 
-static int __devinit wl12xx_probe(struct platform_device *pdev)
+static int wl12xx_setup(struct wl1271 *wl)
 {
-	struct wl12xx_platform_data *pdata = pdev->dev.platform_data;
-	struct wl1271 *wl;
-	struct ieee80211_hw *hw;
-	struct wl12xx_priv *priv;
-
-	hw = wlcore_alloc_hw(sizeof(*priv));
-	if (IS_ERR(hw)) {
-		wl1271_error("can't allocate hw");
-		return PTR_ERR(hw);
-	}
+	struct wl12xx_priv *priv = wl->priv;
+	struct wl12xx_platform_data *pdata = wl->pdev->dev.platform_data;
 
-	wl = hw->priv;
-	priv = wl->priv;
-	wl->ops = &wl12xx_ops;
-	wl->ptable = wl12xx_ptable;
 	wl->rtable = wl12xx_rtable;
-	wl->num_tx_desc = 16;
-	wl->num_rx_desc = 8;
+	wl->num_tx_desc = WL12XX_NUM_TX_DESCRIPTORS;
+	wl->num_rx_desc = WL12XX_NUM_RX_DESCRIPTORS;
+	wl->num_mac_addr = WL12XX_NUM_MAC_ADDRESSES;
 	wl->band_rate_to_idx = wl12xx_band_rate_to_idx;
 	wl->hw_tx_rate_tbl_size = WL12XX_CONF_HW_RXTX_RATE_MAX;
 	wl->hw_min_ht_rate = WL12XX_CONF_HW_RXTX_RATE_MCS0;
@@ -1695,7 +1693,36 @@ static int __devinit wl12xx_probe(struct platform_device *pdev)
 			wl1271_error("Invalid tcxo parameter %s", tcxo_param);
 	}
 
-	return wlcore_probe(wl, pdev);
+	return 0;
+}
+
+static int __devinit wl12xx_probe(struct platform_device *pdev)
+{
+	struct wl1271 *wl;
+	struct ieee80211_hw *hw;
+	int ret;
+
+	hw = wlcore_alloc_hw(sizeof(struct wl12xx_priv),
+			     WL12XX_AGGR_BUFFER_SIZE);
+	if (IS_ERR(hw)) {
+		wl1271_error("can't allocate hw");
+		ret = PTR_ERR(hw);
+		goto out;
+	}
+
+	wl = hw->priv;
+	wl->ops = &wl12xx_ops;
+	wl->ptable = wl12xx_ptable;
+	ret = wlcore_probe(wl, pdev);
+	if (ret)
+		goto out_free;
+
+	return ret;
+
+out_free:
+	wlcore_free_hw(wl);
+out:
+	return ret;
 }
 
 static const struct platform_device_id wl12xx_id_table[] __devinitconst = {
@@ -1714,17 +1741,7 @@ static struct platform_driver wl12xx_driver = {
 	}
 };
 
-static int __init wl12xx_init(void)
-{
-	return platform_driver_register(&wl12xx_driver);
-}
-module_init(wl12xx_init);
-
-static void __exit wl12xx_exit(void)
-{
-	platform_driver_unregister(&wl12xx_driver);
-}
-module_exit(wl12xx_exit);
+module_platform_driver(wl12xx_driver);
 
 module_param_named(fref, fref_param, charp, 0);
 MODULE_PARM_DESC(fref, "FREF clock: 19.2, 26, 26x, 38.4, 38.4x, 52");
diff --git a/drivers/net/wireless/ti/wl12xx/wl12xx.h b/drivers/net/wireless/ti/wl12xx/wl12xx.h
index 26990fb4ede..7182bbf6625 100644
--- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
@@ -38,6 +38,13 @@
 #define WL128X_SUBTYPE_VER	2
 #define WL128X_MINOR_VER	115
 
+#define WL12XX_AGGR_BUFFER_SIZE	(4 * PAGE_SIZE)
+
+#define WL12XX_NUM_TX_DESCRIPTORS 16
+#define WL12XX_NUM_RX_DESCRIPTORS 8
+
+#define WL12XX_NUM_MAC_ADDRESSES 2
+
 struct wl127x_rx_mem_pool_addr {
 	u32 addr;
 	u32 addr_extra;
diff --git a/drivers/net/wireless/ti/wl18xx/debugfs.c b/drivers/net/wireless/ti/wl18xx/debugfs.c
index 3ce6f1039af..7f1669cdea0 100644
--- a/drivers/net/wireless/ti/wl18xx/debugfs.c
+++ b/drivers/net/wireless/ti/wl18xx/debugfs.c
@@ -220,7 +220,7 @@ static ssize_t clear_fw_stats_write(struct file *file,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl18xx_acx_clear_statistics(wl);
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 69042bb9a09..a39682a7c25 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -30,7 +30,6 @@
 #include "../wlcore/acx.h"
 #include "../wlcore/tx.h"
 #include "../wlcore/rx.h"
-#include "../wlcore/io.h"
 #include "../wlcore/boot.h"
 
 #include "reg.h"
@@ -46,7 +45,6 @@
 static char *ht_mode_param = NULL;
 static char *board_type_param = NULL;
 static bool checksum_param = false;
-static bool enable_11a_param = true;
 static int num_rx_desc_param = -1;
 
 /* phy paramters */
@@ -416,7 +414,7 @@ static struct wlcore_conf wl18xx_conf = {
 		.snr_threshold			= 0,
 	},
 	.ht = {
-		.rx_ba_win_size = 10,
+		.rx_ba_win_size = 32,
 		.tx_ba_win_size = 64,
 		.inactivity_timeout = 10000,
 		.tx_ba_tid_bitmap = CONF_TX_BA_ENABLED_TID_BITMAP,
@@ -506,8 +504,8 @@ static struct wl18xx_priv_conf wl18xx_default_priv_conf = {
 		.rdl				= 0x01,
 		.auto_detect			= 0x00,
 		.dedicated_fem			= FEM_NONE,
-		.low_band_component		= COMPONENT_2_WAY_SWITCH,
-		.low_band_component_type	= 0x06,
+		.low_band_component		= COMPONENT_3_WAY_SWITCH,
+		.low_band_component_type	= 0x04,
 		.high_band_component		= COMPONENT_2_WAY_SWITCH,
 		.high_band_component_type	= 0x09,
 		.tcxo_ldo_voltage		= 0x00,
@@ -813,6 +811,13 @@ static int wl18xx_enable_interrupts(struct wl1271 *wl)
 
 	ret = wlcore_write_reg(wl, REG_INTERRUPT_MASK,
 			       WL1271_ACX_INTR_ALL & ~intr_mask);
+	if (ret < 0)
+		goto disable_interrupts;
+
+	return ret;
+
+disable_interrupts:
+	wlcore_disable_interrupts(wl);
 
 out:
 	return ret;
@@ -1203,6 +1208,12 @@ static int wl18xx_handle_static_data(struct wl1271 *wl,
 	struct wl18xx_static_data_priv *static_data_priv =
 		(struct wl18xx_static_data_priv *) static_data->priv;
 
+	strncpy(wl->chip.phy_fw_ver_str, static_data_priv->phy_version,
+		sizeof(wl->chip.phy_fw_ver_str));
+
+	/* make sure the string is NULL-terminated */
+	wl->chip.phy_fw_ver_str[sizeof(wl->chip.phy_fw_ver_str) - 1] = '\0';
+
 	wl1271_info("PHY firmware version: %s", static_data_priv->phy_version);
 
 	return 0;
@@ -1241,13 +1252,6 @@ static int wl18xx_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 	if (!change_spare)
 		return wlcore_set_key(wl, cmd, vif, sta, key_conf);
 
-	/*
-	 * stop the queues and flush to ensure the next packets are
-	 * in sync with FW spare block accounting
-	 */
-	wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
-	wl1271_tx_flush(wl);
-
 	ret = wlcore_set_key(wl, cmd, vif, sta, key_conf);
 	if (ret < 0)
 		goto out;
@@ -1270,7 +1274,6 @@ static int wl18xx_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 	}
 
 out:
-	wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
 	return ret;
 }
 
@@ -1293,7 +1296,10 @@ static u32 wl18xx_pre_pkt_send(struct wl1271 *wl,
 	return buf_offset;
 }
 
+static int wl18xx_setup(struct wl1271 *wl);
+
 static struct wlcore_ops wl18xx_ops = {
+	.setup		= wl18xx_setup,
 	.identify_chip	= wl18xx_identify_chip,
 	.boot		= wl18xx_boot,
 	.plt_init	= wl18xx_plt_init,
@@ -1374,27 +1380,15 @@ static struct ieee80211_sta_ht_cap wl18xx_mimo_ht_cap_2ghz = {
 		},
 };
 
-static int __devinit wl18xx_probe(struct platform_device *pdev)
+static int wl18xx_setup(struct wl1271 *wl)
 {
-	struct wl1271 *wl;
-	struct ieee80211_hw *hw;
-	struct wl18xx_priv *priv;
+	struct wl18xx_priv *priv = wl->priv;
 	int ret;
 
-	hw = wlcore_alloc_hw(sizeof(*priv));
-	if (IS_ERR(hw)) {
-		wl1271_error("can't allocate hw");
-		ret = PTR_ERR(hw);
-		goto out;
-	}
-
-	wl = hw->priv;
-	priv = wl->priv;
-	wl->ops = &wl18xx_ops;
-	wl->ptable = wl18xx_ptable;
 	wl->rtable = wl18xx_rtable;
-	wl->num_tx_desc = 32;
-	wl->num_rx_desc = 32;
+	wl->num_tx_desc = WL18XX_NUM_TX_DESCRIPTORS;
+	wl->num_rx_desc = WL18XX_NUM_TX_DESCRIPTORS;
+	wl->num_mac_addr = WL18XX_NUM_MAC_ADDRESSES;
 	wl->band_rate_to_idx = wl18xx_band_rate_to_idx;
 	wl->hw_tx_rate_tbl_size = WL18XX_CONF_HW_RXTX_RATE_MAX;
 	wl->hw_min_ht_rate = WL18XX_CONF_HW_RXTX_RATE_MCS0;
@@ -1405,9 +1399,9 @@ static int __devinit wl18xx_probe(struct platform_device *pdev)
 	if (num_rx_desc_param != -1)
 		wl->num_rx_desc = num_rx_desc_param;
 
-	ret = wl18xx_conf_init(wl, &pdev->dev);
+	ret = wl18xx_conf_init(wl, wl->dev);
 	if (ret < 0)
-		goto out_free;
+		return ret;
 
 	/* If the module param is set, update it in conf */
 	if (board_type_param) {
@@ -1424,27 +1418,14 @@ static int __devinit wl18xx_probe(struct platform_device *pdev)
 		} else {
 			wl1271_error("invalid board type '%s'",
 				board_type_param);
-			ret = -EINVAL;
-			goto out_free;
+			return -EINVAL;
 		}
 	}
 
-	/* HACK! Just for now we hardcode COM8 and HDK to 0x06 */
-	switch (priv->conf.phy.board_type) {
-	case BOARD_TYPE_HDK_18XX:
-	case BOARD_TYPE_COM8_18XX:
-		priv->conf.phy.low_band_component_type = 0x06;
-		break;
-	case BOARD_TYPE_FPGA_18XX:
-	case BOARD_TYPE_DVP_18XX:
-	case BOARD_TYPE_EVB_18XX:
-		priv->conf.phy.low_band_component_type = 0x05;
-		break;
-	default:
+	if (priv->conf.phy.board_type >= NUM_BOARD_TYPES) {
 		wl1271_error("invalid board type '%d'",
 			priv->conf.phy.board_type);
-		ret = -EINVAL;
-		goto out_free;
+		return -EINVAL;
 	}
 
 	if (low_band_component_param != -1)
@@ -1476,22 +1457,21 @@ static int __devinit wl18xx_probe(struct platform_device *pdev)
 			priv->conf.ht.mode = HT_MODE_SISO20;
 		else {
 			wl1271_error("invalid ht_mode '%s'", ht_mode_param);
-			ret = -EINVAL;
-			goto out_free;
+			return -EINVAL;
 		}
 	}
 
 	if (priv->conf.ht.mode == HT_MODE_DEFAULT) {
 		/*
 		 * Only support mimo with multiple antennas. Fall back to
-		 * siso20.
+		 * siso40.
 		 */
 		if (wl18xx_is_mimo_supported(wl))
 			wlcore_set_ht_cap(wl, IEEE80211_BAND_2GHZ,
 					  &wl18xx_mimo_ht_cap_2ghz);
 		else
 			wlcore_set_ht_cap(wl, IEEE80211_BAND_2GHZ,
-					  &wl18xx_siso20_ht_cap);
+					  &wl18xx_siso40_ht_cap_2ghz);
 
 		/* 5Ghz is always wide */
 		wlcore_set_ht_cap(wl, IEEE80211_BAND_5GHZ,
@@ -1513,9 +1493,34 @@ static int __devinit wl18xx_probe(struct platform_device *pdev)
 		wl18xx_ops.init_vif = NULL;
 	}
 
-	wl->enable_11a = enable_11a_param;
+	/* Enable 11a Band only if we have 5G antennas */
+	wl->enable_11a = (priv->conf.phy.number_of_assembled_ant5 != 0);
+
+	return 0;
+}
+
+static int __devinit wl18xx_probe(struct platform_device *pdev)
+{
+	struct wl1271 *wl;
+	struct ieee80211_hw *hw;
+	int ret;
+
+	hw = wlcore_alloc_hw(sizeof(struct wl18xx_priv),
+			     WL18XX_AGGR_BUFFER_SIZE);
+	if (IS_ERR(hw)) {
+		wl1271_error("can't allocate hw");
+		ret = PTR_ERR(hw);
+		goto out;
+	}
+
+	wl = hw->priv;
+	wl->ops = &wl18xx_ops;
+	wl->ptable = wl18xx_ptable;
+	ret = wlcore_probe(wl, pdev);
+	if (ret)
+		goto out_free;
 
-	return wlcore_probe(wl, pdev);
+	return ret;
 
 out_free:
 	wlcore_free_hw(wl);
@@ -1539,18 +1544,7 @@ static struct platform_driver wl18xx_driver = {
 	}
 };
 
-static int __init wl18xx_init(void)
-{
-	return platform_driver_register(&wl18xx_driver);
-}
-module_init(wl18xx_init);
-
-static void __exit wl18xx_exit(void)
-{
-	platform_driver_unregister(&wl18xx_driver);
-}
-module_exit(wl18xx_exit);
-
+module_platform_driver(wl18xx_driver);
 module_param_named(ht_mode, ht_mode_param, charp, S_IRUSR);
 MODULE_PARM_DESC(ht_mode, "Force HT mode: wide or siso20");
 
@@ -1561,9 +1555,6 @@ MODULE_PARM_DESC(board_type, "Board type: fpga, hdk (default), evb, com8 or "
 module_param_named(checksum, checksum_param, bool, S_IRUSR);
 MODULE_PARM_DESC(checksum, "Enable TCP checksum: boolean (defaults to false)");
 
-module_param_named(enable_11a, enable_11a_param, bool, S_IRUSR);
-MODULE_PARM_DESC(enable_11a, "Enable 11a (5GHz): boolean (defaults to true)");
-
 module_param_named(dc2dc, dc2dc_param, int, S_IRUSR);
 MODULE_PARM_DESC(dc2dc, "External DC2DC: u8 (defaults to 0)");
 
diff --git a/drivers/net/wireless/ti/wl18xx/wl18xx.h b/drivers/net/wireless/ti/wl18xx/wl18xx.h
index 6452396fa1d..96a1e438d67 100644
--- a/drivers/net/wireless/ti/wl18xx/wl18xx.h
+++ b/drivers/net/wireless/ti/wl18xx/wl18xx.h
@@ -33,6 +33,13 @@
 
 #define WL18XX_CMD_MAX_SIZE          740
 
+#define WL18XX_AGGR_BUFFER_SIZE		(13 * PAGE_SIZE)
+
+#define WL18XX_NUM_TX_DESCRIPTORS 32
+#define WL18XX_NUM_RX_DESCRIPTORS 32
+
+#define WL18XX_NUM_MAC_ADDRESSES 3
+
 struct wl18xx_priv {
 	/* buffer for sending commands to FW */
 	u8 cmd_buf[WL18XX_CMD_MAX_SIZE];
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index 20e1bd92383..eaef3f41b25 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -59,6 +59,9 @@ int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
 	u16 status;
 	u16 poll_count = 0;
 
+	if (WARN_ON(unlikely(wl->state == WLCORE_STATE_RESTARTING)))
+		return -EIO;
+
 	cmd = buf;
 	cmd->id = cpu_to_le16(id);
 	cmd->status = 0;
@@ -990,7 +993,7 @@ int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
 
 	ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
 				      skb->data, skb->len,
-				      CMD_TEMPL_KLV_IDX_NULL_DATA,
+				      wlvif->sta.klv_template_id,
 				      wlvif->basic_rate);
 
 out:
@@ -1785,10 +1788,17 @@ int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 		      wlvif->bss_type == BSS_TYPE_IBSS)))
 		return -EINVAL;
 
-	ret = wl12xx_cmd_role_start_dev(wl, wlvif);
+	ret = wl12xx_cmd_role_enable(wl,
+				     wl12xx_wlvif_to_vif(wlvif)->addr,
+				     WL1271_ROLE_DEVICE,
+				     &wlvif->dev_role_id);
 	if (ret < 0)
 		goto out;
 
+	ret = wl12xx_cmd_role_start_dev(wl, wlvif);
+	if (ret < 0)
+		goto out_disable;
+
 	ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
 	if (ret < 0)
 		goto out_stop;
@@ -1797,6 +1807,8 @@ int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 
 out_stop:
 	wl12xx_cmd_role_stop_dev(wl, wlvif);
+out_disable:
+	wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
 out:
 	return ret;
 }
@@ -1824,6 +1836,11 @@ int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 	ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
 	if (ret < 0)
 		goto out;
+
+	ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
+	if (ret < 0)
+		goto out;
+
 out:
 	return ret;
 }
diff --git a/drivers/net/wireless/ti/wlcore/cmd.h b/drivers/net/wireless/ti/wlcore/cmd.h
index 4ef0b095f0d..2409f3d71f6 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.h
+++ b/drivers/net/wireless/ti/wlcore/cmd.h
@@ -157,11 +157,6 @@ enum wl1271_commands {
 
 #define MAX_CMD_PARAMS 572
 
-enum {
-	CMD_TEMPL_KLV_IDX_NULL_DATA = 0,
-	CMD_TEMPL_KLV_IDX_MAX = 4
-};
-
 enum cmd_templ {
 	CMD_TEMPL_NULL_DATA = 0,
 	CMD_TEMPL_BEACON,
diff --git a/drivers/net/wireless/ti/wlcore/conf.h b/drivers/net/wireless/ti/wlcore/conf.h
index d77224f2ac6..9e40760bafe 100644
--- a/drivers/net/wireless/ti/wlcore/conf.h
+++ b/drivers/net/wireless/ti/wlcore/conf.h
@@ -412,8 +412,7 @@ struct conf_rx_settings {
 #define CONF_TX_RATE_RETRY_LIMIT       10
 
 /* basic rates for p2p operations (probe req/resp, etc.) */
-#define CONF_TX_RATE_MASK_BASIC_P2P    (CONF_HW_BIT_RATE_6MBPS | \
-	CONF_HW_BIT_RATE_12MBPS | CONF_HW_BIT_RATE_24MBPS)
+#define CONF_TX_RATE_MASK_BASIC_P2P    CONF_HW_BIT_RATE_6MBPS
 
 /*
  * Rates supported for data packets when operating as AP. Note the absence
diff --git a/drivers/net/wireless/ti/wlcore/debug.h b/drivers/net/wireless/ti/wlcore/debug.h
index 6b800b3cbea..db4bf5a68ce 100644
--- a/drivers/net/wireless/ti/wlcore/debug.h
+++ b/drivers/net/wireless/ti/wlcore/debug.h
@@ -28,7 +28,7 @@
 #include <linux/bitops.h>
 #include <linux/printk.h>
 
-#define DRIVER_NAME "wl12xx"
+#define DRIVER_NAME "wlcore"
 #define DRIVER_PREFIX DRIVER_NAME ": "
 
 enum {
@@ -73,11 +73,21 @@ extern u32 wl12xx_debug_level;
 #define wl1271_info(fmt, arg...) \
 	pr_info(DRIVER_PREFIX fmt "\n", ##arg)
 
+/* define the debug macro differently if dynamic debug is supported */
+#if defined(CONFIG_DYNAMIC_DEBUG)
 #define wl1271_debug(level, fmt, arg...) \
 	do { \
-		if (level & wl12xx_debug_level) \
-			pr_debug(DRIVER_PREFIX fmt "\n", ##arg); \
+		if (unlikely(level & wl12xx_debug_level)) \
+			dynamic_pr_debug(DRIVER_PREFIX fmt "\n", ##arg); \
+	} while (0)
+#else
+#define wl1271_debug(level, fmt, arg...) \
+	do { \
+		if (unlikely(level & wl12xx_debug_level)) \
+			printk(KERN_DEBUG pr_fmt(DRIVER_PREFIX fmt "\n"), \
+			       ##arg); \
 	} while (0)
+#endif
 
 /* TODO: use pr_debug_hex_dump when it becomes available */
 #define wl1271_dump(level, prefix, buf, len)	\
diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c
index 80dbc5304fa..c86bb00c248 100644
--- a/drivers/net/wireless/ti/wlcore/debugfs.c
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
@@ -62,11 +62,14 @@ void wl1271_debugfs_update_stats(struct wl1271 *wl)
 
 	mutex_lock(&wl->mutex);
 
+	if (unlikely(wl->state != WLCORE_STATE_ON))
+		goto out;
+
 	ret = wl1271_ps_elp_wakeup(wl);
 	if (ret < 0)
 		goto out;
 
-	if (wl->state == WL1271_STATE_ON && !wl->plt &&
+	if (!wl->plt &&
 	    time_after(jiffies, wl->stats.fw_stats_update +
 		       msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
 		wl1271_acx_statistics(wl, wl->stats.fw_stats);
@@ -286,7 +289,7 @@ static ssize_t dynamic_ps_timeout_write(struct file *file,
 
 	wl->conf.conn.dynamic_ps_timeout = value;
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -353,7 +356,7 @@ static ssize_t forced_ps_write(struct file *file,
 
 	wl->conf.conn.forced_ps = value;
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -486,6 +489,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 	DRIVER_STATE_PRINT_HEX(platform_quirks);
 	DRIVER_STATE_PRINT_HEX(chip.id);
 	DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
+	DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
 	DRIVER_STATE_PRINT_INT(sched_scanning);
 
 #undef DRIVER_STATE_PRINT_INT
@@ -999,7 +1003,7 @@ static ssize_t sleep_auth_write(struct file *file,
 
 	wl->conf.conn.sta_sleep_auth = value;
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		/* this will show up on "read" in case we are off */
 		wl->sleep_auth = value;
 		goto out;
@@ -1060,14 +1064,16 @@ static ssize_t dev_mem_read(struct file *file,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state == WLCORE_STATE_OFF)) {
 		ret = -EFAULT;
 		goto skip_read;
 	}
 
-	ret = wl1271_ps_elp_wakeup(wl);
-	if (ret < 0)
-		goto skip_read;
+	/*
+	 * Don't fail if elp_wakeup returns an error, so the device's memory
+	 * could be read even if the FW crashed
+	 */
+	wl1271_ps_elp_wakeup(wl);
 
 	/* store current partition and switch partition */
 	memcpy(&old_part, &wl->curr_part, sizeof(old_part));
@@ -1145,14 +1151,16 @@ static ssize_t dev_mem_write(struct file *file, const char __user *user_buf,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state == WLCORE_STATE_OFF)) {
 		ret = -EFAULT;
 		goto skip_write;
 	}
 
-	ret = wl1271_ps_elp_wakeup(wl);
-	if (ret < 0)
-		goto skip_write;
+	/*
+	 * Don't fail if elp_wakeup returns an error, so the device's memory
+	 * could be read even if the FW crashed
+	 */
+	wl1271_ps_elp_wakeup(wl);
 
 	/* store current partition and switch partition */
 	memcpy(&old_part, &wl->curr_part, sizeof(old_part));
diff --git a/drivers/net/wireless/ti/wlcore/init.c b/drivers/net/wireless/ti/wlcore/init.c
index a3c867786df..32d157f62f3 100644
--- a/drivers/net/wireless/ti/wlcore/init.c
+++ b/drivers/net/wireless/ti/wlcore/init.c
@@ -141,7 +141,7 @@ int wl1271_init_templates_config(struct wl1271 *wl)
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) {
+	for (i = 0; i < WLCORE_MAX_KLV_TEMPLATES; i++) {
 		ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID,
 					      CMD_TEMPL_KLV, NULL,
 					      sizeof(struct ieee80211_qos_hdr),
@@ -371,15 +371,7 @@ static int wl1271_sta_hw_init_post_mem(struct wl1271 *wl,
 				       struct ieee80211_vif *vif)
 {
 	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
-	int ret, i;
-
-	/* disable all keep-alive templates */
-	for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) {
-		ret = wl1271_acx_keep_alive_config(wl, wlvif, i,
-						   ACX_KEEP_ALIVE_TPL_INVALID);
-		if (ret < 0)
-			return ret;
-	}
+	int ret;
 
 	/* disable the keep-alive feature */
 	ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
diff --git a/drivers/net/wireless/ti/wlcore/io.h b/drivers/net/wireless/ti/wlcore/io.h
index 259149f36fa..f48530fec14 100644
--- a/drivers/net/wireless/ti/wlcore/io.h
+++ b/drivers/net/wireless/ti/wlcore/io.h
@@ -64,7 +64,7 @@ static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
 		return -EIO;
 
 	ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
-	if (ret && wl->state != WL1271_STATE_OFF)
+	if (ret && wl->state != WLCORE_STATE_OFF)
 		set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
 
 	return ret;
@@ -80,7 +80,7 @@ static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
 		return -EIO;
 
 	ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
-	if (ret && wl->state != WL1271_STATE_OFF)
+	if (ret && wl->state != WLCORE_STATE_OFF)
 		set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
 
 	return ret;
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 72548609f71..25530c8760c 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -248,7 +248,7 @@ static void wl12xx_tx_watchdog_work(struct work_struct *work)
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	/* Tx went out in the meantime - everything is ok */
@@ -512,7 +512,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
 
 	wl1271_debug(DEBUG_IRQ, "IRQ work");
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -696,7 +696,7 @@ static int wl12xx_fetch_firmware(struct wl1271 *wl, bool plt)
 		 * we can't call wl12xx_get_vif_count() here because
 		 * wl->mutex is taken, so use the cached last_vif_count value
 		 */
-		if (wl->last_vif_count > 1) {
+		if (wl->last_vif_count > 1 && wl->mr_fw_name) {
 			fw_type = WL12XX_FW_TYPE_MULTI;
 			fw_name = wl->mr_fw_name;
 		} else {
@@ -744,38 +744,14 @@ out:
 	return ret;
 }
 
-static void wl1271_fetch_nvs(struct wl1271 *wl)
-{
-	const struct firmware *fw;
-	int ret;
-
-	ret = request_firmware(&fw, WL12XX_NVS_NAME, wl->dev);
-
-	if (ret < 0) {
-		wl1271_debug(DEBUG_BOOT, "could not get nvs file %s: %d",
-			     WL12XX_NVS_NAME, ret);
-		return;
-	}
-
-	wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
-
-	if (!wl->nvs) {
-		wl1271_error("could not allocate memory for the nvs file");
-		goto out;
-	}
-
-	wl->nvs_len = fw->size;
-
-out:
-	release_firmware(fw);
-}
-
 void wl12xx_queue_recovery_work(struct wl1271 *wl)
 {
 	WARN_ON(!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
 
 	/* Avoid a recursive recovery */
-	if (!test_and_set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
+	if (wl->state == WLCORE_STATE_ON) {
+		wl->state = WLCORE_STATE_RESTARTING;
+		set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
 		wlcore_disable_interrupts_nosync(wl);
 		ieee80211_queue_work(wl->hw, &wl->recovery_work);
 	}
@@ -913,7 +889,7 @@ static void wl1271_recovery_work(struct work_struct *work)
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state != WL1271_STATE_ON || wl->plt)
+	if (wl->state == WLCORE_STATE_OFF || wl->plt)
 		goto out_unlock;
 
 	if (!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags)) {
@@ -1081,7 +1057,7 @@ int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode)
 
 	wl1271_notice("power up");
 
-	if (wl->state != WL1271_STATE_OFF) {
+	if (wl->state != WLCORE_STATE_OFF) {
 		wl1271_error("cannot go into PLT state because not "
 			     "in off state: %d", wl->state);
 		ret = -EBUSY;
@@ -1102,7 +1078,7 @@ int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode)
 		if (ret < 0)
 			goto power_off;
 
-		wl->state = WL1271_STATE_ON;
+		wl->state = WLCORE_STATE_ON;
 		wl1271_notice("firmware booted in PLT mode %s (%s)",
 			      PLT_MODE[plt_mode],
 			      wl->chip.fw_ver_str);
@@ -1171,7 +1147,7 @@ int wl1271_plt_stop(struct wl1271 *wl)
 	wl1271_power_off(wl);
 	wl->flags = 0;
 	wl->sleep_auth = WL1271_PSM_ILLEGAL;
-	wl->state = WL1271_STATE_OFF;
+	wl->state = WLCORE_STATE_OFF;
 	wl->plt = false;
 	wl->plt_mode = PLT_OFF;
 	wl->rx_counter = 0;
@@ -1181,7 +1157,9 @@ out:
 	return ret;
 }
 
-static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void wl1271_op_tx(struct ieee80211_hw *hw,
+			 struct ieee80211_tx_control *control,
+			 struct sk_buff *skb)
 {
 	struct wl1271 *wl = hw->priv;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1197,7 +1175,7 @@ static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	mapping = skb_get_queue_mapping(skb);
 	q = wl1271_tx_get_queue(mapping);
 
-	hlid = wl12xx_tx_get_hlid(wl, wlvif, skb);
+	hlid = wl12xx_tx_get_hlid(wl, wlvif, skb, control->sta);
 
 	spin_lock_irqsave(&wl->wl_lock, flags);
 
@@ -1600,12 +1578,6 @@ static int wl1271_configure_suspend_sta(struct wl1271 *wl,
 	if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
 		goto out;
 
-	if ((wl->conf.conn.suspend_wake_up_event ==
-	     wl->conf.conn.wake_up_event) &&
-	    (wl->conf.conn.suspend_listen_interval ==
-	     wl->conf.conn.listen_interval))
-		goto out;
-
 	ret = wl1271_ps_elp_wakeup(wl);
 	if (ret < 0)
 		goto out;
@@ -1614,6 +1586,12 @@ static int wl1271_configure_suspend_sta(struct wl1271 *wl,
 	if (ret < 0)
 		goto out_sleep;
 
+	if ((wl->conf.conn.suspend_wake_up_event ==
+	     wl->conf.conn.wake_up_event) &&
+	    (wl->conf.conn.suspend_listen_interval ==
+	     wl->conf.conn.listen_interval))
+		goto out_sleep;
+
 	ret = wl1271_acx_wake_up_conditions(wl, wlvif,
 				    wl->conf.conn.suspend_wake_up_event,
 				    wl->conf.conn.suspend_listen_interval);
@@ -1669,11 +1647,7 @@ static void wl1271_configure_resume(struct wl1271 *wl,
 	if ((!is_ap) && (!is_sta))
 		return;
 
-	if (is_sta &&
-	    ((wl->conf.conn.suspend_wake_up_event ==
-	      wl->conf.conn.wake_up_event) &&
-	     (wl->conf.conn.suspend_listen_interval ==
-	      wl->conf.conn.listen_interval)))
+	if (is_sta && !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
 		return;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -1683,6 +1657,12 @@ static void wl1271_configure_resume(struct wl1271 *wl,
 	if (is_sta) {
 		wl1271_configure_wowlan(wl, NULL);
 
+		if ((wl->conf.conn.suspend_wake_up_event ==
+		     wl->conf.conn.wake_up_event) &&
+		    (wl->conf.conn.suspend_listen_interval ==
+		     wl->conf.conn.listen_interval))
+			goto out_sleep;
+
 		ret = wl1271_acx_wake_up_conditions(wl, wlvif,
 				    wl->conf.conn.wake_up_event,
 				    wl->conf.conn.listen_interval);
@@ -1695,6 +1675,7 @@ static void wl1271_configure_resume(struct wl1271 *wl,
 		ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false);
 	}
 
+out_sleep:
 	wl1271_ps_elp_sleep(wl);
 }
 
@@ -1831,7 +1812,7 @@ static void wlcore_op_stop_locked(struct wl1271 *wl)
 {
 	int i;
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (wl->state == WLCORE_STATE_OFF) {
 		if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
 					&wl->flags))
 			wlcore_enable_interrupts(wl);
@@ -1843,7 +1824,7 @@ static void wlcore_op_stop_locked(struct wl1271 *wl)
 	 * this must be before the cancel_work calls below, so that the work
 	 * functions don't perform further work.
 	 */
-	wl->state = WL1271_STATE_OFF;
+	wl->state = WLCORE_STATE_OFF;
 
 	/*
 	 * Use the nosync variant to disable interrupts, so the mutex could be
@@ -1854,6 +1835,8 @@ static void wlcore_op_stop_locked(struct wl1271 *wl)
 	mutex_unlock(&wl->mutex);
 
 	wlcore_synchronize_interrupts(wl);
+	if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
+		cancel_work_sync(&wl->recovery_work);
 	wl1271_flush_deferred_work(wl);
 	cancel_delayed_work_sync(&wl->scan_complete_work);
 	cancel_work_sync(&wl->netstack_work);
@@ -1956,6 +1939,27 @@ static void wl12xx_free_rate_policy(struct wl1271 *wl, u8 *idx)
 	*idx = WL12XX_MAX_RATE_POLICIES;
 }
 
+static int wlcore_allocate_klv_template(struct wl1271 *wl, u8 *idx)
+{
+	u8 policy = find_first_zero_bit(wl->klv_templates_map,
+					WLCORE_MAX_KLV_TEMPLATES);
+	if (policy >= WLCORE_MAX_KLV_TEMPLATES)
+		return -EBUSY;
+
+	__set_bit(policy, wl->klv_templates_map);
+	*idx = policy;
+	return 0;
+}
+
+static void wlcore_free_klv_template(struct wl1271 *wl, u8 *idx)
+{
+	if (WARN_ON(*idx >= WLCORE_MAX_KLV_TEMPLATES))
+		return;
+
+	__clear_bit(*idx, wl->klv_templates_map);
+	*idx = WLCORE_MAX_KLV_TEMPLATES;
+}
+
 static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 {
 	switch (wlvif->bss_type) {
@@ -2020,6 +2024,7 @@ static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif)
 		wl12xx_allocate_rate_policy(wl, &wlvif->sta.basic_rate_idx);
 		wl12xx_allocate_rate_policy(wl, &wlvif->sta.ap_rate_idx);
 		wl12xx_allocate_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
+		wlcore_allocate_klv_template(wl, &wlvif->sta.klv_template_id);
 		wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
 		wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
 		wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
@@ -2096,7 +2101,7 @@ irq_disable:
 		/* Unlocking the mutex in the middle of handling is
 		   inherently unsafe. In this case we deem it safe to do,
 		   because we need to let any possibly pending IRQ out of
-		   the system (and while we are WL1271_STATE_OFF the IRQ
+		   the system (and while we are WLCORE_STATE_OFF the IRQ
 		   work function will not do anything.) Also, any other
 		   possible concurrent operations will fail due to the
 		   current state, hence the wl1271 struct should be safe. */
@@ -2131,7 +2136,7 @@ power_off:
 	wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
 		     wl->enable_11a ? "" : "not ");
 
-	wl->state = WL1271_STATE_ON;
+	wl->state = WLCORE_STATE_ON;
 out:
 	return booted;
 }
@@ -2165,7 +2170,11 @@ static bool wl12xx_need_fw_change(struct wl1271 *wl,
 	wl->last_vif_count = vif_count;
 
 	/* no need for fw change if the device is OFF */
-	if (wl->state == WL1271_STATE_OFF)
+	if (wl->state == WLCORE_STATE_OFF)
+		return false;
+
+	/* no need for fw change if a single fw is used */
+	if (!wl->mr_fw_name)
 		return false;
 
 	if (vif_count > 1 && current_fw == WL12XX_FW_TYPE_NORMAL)
@@ -2247,7 +2256,7 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
 	 * TODO: after the nvs issue will be solved, move this block
 	 * to start(), and make sure here the driver is ON.
 	 */
-	if (wl->state == WL1271_STATE_OFF) {
+	if (wl->state == WLCORE_STATE_OFF) {
 		/*
 		 * we still need this in order to configure the fw
 		 * while uploading the nvs
@@ -2261,21 +2270,6 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
 		}
 	}
 
-	if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
-	    wlvif->bss_type == BSS_TYPE_IBSS) {
-		/*
-		 * The device role is a special role used for
-		 * rx and tx frames prior to association (as
-		 * the STA role can get packets only from
-		 * its associated bssid)
-		 */
-		ret = wl12xx_cmd_role_enable(wl, vif->addr,
-						 WL1271_ROLE_DEVICE,
-						 &wlvif->dev_role_id);
-		if (ret < 0)
-			goto out;
-	}
-
 	ret = wl12xx_cmd_role_enable(wl, vif->addr,
 				     role_type, &wlvif->role_id);
 	if (ret < 0)
@@ -2314,7 +2308,7 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
 		return;
 
 	/* because of hardware recovery, we may get here twice */
-	if (wl->state != WL1271_STATE_ON)
+	if (wl->state == WLCORE_STATE_OFF)
 		return;
 
 	wl1271_info("down");
@@ -2344,10 +2338,6 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
 		    wlvif->bss_type == BSS_TYPE_IBSS) {
 			if (wl12xx_dev_role_started(wlvif))
 				wl12xx_stop_dev(wl, wlvif);
-
-			ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
-			if (ret < 0)
-				goto deinit;
 		}
 
 		ret = wl12xx_cmd_role_disable(wl, &wlvif->role_id);
@@ -2366,6 +2356,7 @@ deinit:
 		wl12xx_free_rate_policy(wl, &wlvif->sta.basic_rate_idx);
 		wl12xx_free_rate_policy(wl, &wlvif->sta.ap_rate_idx);
 		wl12xx_free_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
+		wlcore_free_klv_template(wl, &wlvif->sta.klv_template_id);
 	} else {
 		wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
 		wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
@@ -2430,12 +2421,11 @@ static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
 	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
 	struct wl12xx_vif *iter;
 	struct vif_counter_data vif_count;
-	bool cancel_recovery = true;
 
 	wl12xx_get_vif_count(hw, vif, &vif_count);
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF ||
+	if (wl->state == WLCORE_STATE_OFF ||
 	    !test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
 		goto out;
 
@@ -2455,12 +2445,9 @@ static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
 		wl12xx_force_active_psm(wl);
 		set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
 		wl12xx_queue_recovery_work(wl);
-		cancel_recovery = false;
 	}
 out:
 	mutex_unlock(&wl->mutex);
-	if (cancel_recovery)
-		cancel_work_sync(&wl->recovery_work);
 }
 
 static int wl12xx_op_change_interface(struct ieee80211_hw *hw,
@@ -2534,7 +2521,7 @@ static int wl1271_join(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		goto out;
 
 	ret = wl1271_acx_keep_alive_config(wl, wlvif,
-					   CMD_TEMPL_KLV_IDX_NULL_DATA,
+					   wlvif->sta.klv_template_id,
 					   ACX_KEEP_ALIVE_TPL_VALID);
 	if (ret < 0)
 		goto out;
@@ -2554,6 +2541,11 @@ static int wl1271_unjoin(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 		ieee80211_chswitch_done(vif, false);
 	}
 
+	/* invalidate keep-alive template */
+	wl1271_acx_keep_alive_config(wl, wlvif,
+				     wlvif->sta.klv_template_id,
+				     ACX_KEEP_ALIVE_TPL_INVALID);
+
 	/* to stop listening to a channel, we disconnect */
 	ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
 	if (ret < 0)
@@ -2594,11 +2586,6 @@ static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		ret = wl1271_acx_sta_rate_policies(wl, wlvif);
 		if (ret < 0)
 			goto out;
-		ret = wl1271_acx_keep_alive_config(
-			wl, wlvif, CMD_TEMPL_KLV_IDX_NULL_DATA,
-			ACX_KEEP_ALIVE_TPL_INVALID);
-		if (ret < 0)
-			goto out;
 		clear_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
 	} else {
 		/* The current firmware only supports sched_scan in idle */
@@ -2770,7 +2757,7 @@ static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
 	if (changed & IEEE80211_CONF_CHANGE_POWER)
 		wl->power_level = conf->power_level;
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -2804,10 +2791,6 @@ static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
 {
 	struct wl1271_filter_params *fp;
 	struct netdev_hw_addr *ha;
-	struct wl1271 *wl = hw->priv;
-
-	if (unlikely(wl->state == WL1271_STATE_OFF))
-		return 0;
 
 	fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
 	if (!fp) {
@@ -2856,7 +2839,7 @@ static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
 	*total &= WL1271_SUPPORTED_FILTERS;
 	changed &= WL1271_SUPPORTED_FILTERS;
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -3080,8 +3063,45 @@ static int wlcore_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 			     struct ieee80211_key_conf *key_conf)
 {
 	struct wl1271 *wl = hw->priv;
+	int ret;
+	bool might_change_spare =
+		key_conf->cipher == WL1271_CIPHER_SUITE_GEM ||
+		key_conf->cipher == WLAN_CIPHER_SUITE_TKIP;
 
-	return wlcore_hw_set_key(wl, cmd, vif, sta, key_conf);
+	if (might_change_spare) {
+		/*
+		 * stop the queues and flush to ensure the next packets are
+		 * in sync with FW spare block accounting
+		 */
+		mutex_lock(&wl->mutex);
+		wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
+		mutex_unlock(&wl->mutex);
+
+		wl1271_tx_flush(wl);
+	}
+
+	mutex_lock(&wl->mutex);
+
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
+		ret = -EAGAIN;
+		goto out_wake_queues;
+	}
+
+	ret = wl1271_ps_elp_wakeup(wl);
+	if (ret < 0)
+		goto out_wake_queues;
+
+	ret = wlcore_hw_set_key(wl, cmd, vif, sta, key_conf);
+
+	wl1271_ps_elp_sleep(wl);
+
+out_wake_queues:
+	if (might_change_spare)
+		wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
+
+	mutex_unlock(&wl->mutex);
+
+	return ret;
 }
 
 int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
@@ -3103,17 +3123,6 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 		     key_conf->keylen, key_conf->flags);
 	wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
 
-	mutex_lock(&wl->mutex);
-
-	if (unlikely(wl->state == WL1271_STATE_OFF)) {
-		ret = -EAGAIN;
-		goto out_unlock;
-	}
-
-	ret = wl1271_ps_elp_wakeup(wl);
-	if (ret < 0)
-		goto out_unlock;
-
 	switch (key_conf->cipher) {
 	case WLAN_CIPHER_SUITE_WEP40:
 	case WLAN_CIPHER_SUITE_WEP104:
@@ -3143,8 +3152,7 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 	default:
 		wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
 
-		ret = -EOPNOTSUPP;
-		goto out_sleep;
+		return -EOPNOTSUPP;
 	}
 
 	switch (cmd) {
@@ -3155,7 +3163,7 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 				 tx_seq_32, tx_seq_16, sta);
 		if (ret < 0) {
 			wl1271_error("Could not add or replace key");
-			goto out_sleep;
+			return ret;
 		}
 
 		/*
@@ -3169,7 +3177,7 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 			ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
 			if (ret < 0) {
 				wl1271_warning("build arp rsp failed: %d", ret);
-				goto out_sleep;
+				return ret;
 			}
 		}
 		break;
@@ -3181,22 +3189,15 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 				     0, 0, sta);
 		if (ret < 0) {
 			wl1271_error("Could not remove key");
-			goto out_sleep;
+			return ret;
 		}
 		break;
 
 	default:
 		wl1271_error("Unsupported key cmd 0x%x", cmd);
-		ret = -EOPNOTSUPP;
-		break;
+		return -EOPNOTSUPP;
 	}
 
-out_sleep:
-	wl1271_ps_elp_sleep(wl);
-
-out_unlock:
-	mutex_unlock(&wl->mutex);
-
 	return ret;
 }
 EXPORT_SYMBOL_GPL(wlcore_set_key);
@@ -3219,7 +3220,7 @@ static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		/*
 		 * We cannot return -EBUSY here because cfg80211 will expect
 		 * a call to ieee80211_scan_completed if we do - in this case
@@ -3259,7 +3260,7 @@ static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
@@ -3308,7 +3309,7 @@ static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EAGAIN;
 		goto out;
 	}
@@ -3345,7 +3346,7 @@ static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -3366,7 +3367,7 @@ static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF)) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EAGAIN;
 		goto out;
 	}
@@ -3395,7 +3396,7 @@ static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF)) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EAGAIN;
 		goto out;
 	}
@@ -4171,7 +4172,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	if (unlikely(!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)))
@@ -4255,7 +4256,7 @@ static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -4454,7 +4455,7 @@ static int wl12xx_op_sta_state(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF)) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EBUSY;
 		goto out;
 	}
@@ -4493,7 +4494,7 @@ static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF)) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EAGAIN;
 		goto out;
 	}
@@ -4611,7 +4612,7 @@ static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
 						    mask->control[i].legacy,
 						    i);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
@@ -4647,12 +4648,14 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF)) {
+	if (unlikely(wl->state == WLCORE_STATE_OFF)) {
 		wl12xx_for_each_wlvif_sta(wl, wlvif) {
 			struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
 			ieee80211_chswitch_done(vif, false);
 		}
 		goto out;
+	} else if (unlikely(wl->state != WLCORE_STATE_ON)) {
+		goto out;
 	}
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -4687,7 +4690,7 @@ static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	/* packets are considered pending if in the TX queue or the FW */
@@ -4936,7 +4939,7 @@ static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
 
 	wl->sg_enabled = res;
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	ret = wl1271_ps_elp_wakeup(wl);
@@ -5054,7 +5057,7 @@ static void wl1271_connection_loss_work(struct work_struct *work)
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	/* Call mac80211 connection loss */
@@ -5068,18 +5071,17 @@ out:
 	mutex_unlock(&wl->mutex);
 }
 
-static void wl12xx_derive_mac_addresses(struct wl1271 *wl,
-					u32 oui, u32 nic, int n)
+static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
 {
 	int i;
 
-	wl1271_debug(DEBUG_PROBE, "base address: oui %06x nic %06x, n %d",
-		     oui, nic, n);
+	wl1271_debug(DEBUG_PROBE, "base address: oui %06x nic %06x",
+		     oui, nic);
 
-	if (nic + n - 1 > 0xffffff)
+	if (nic + WLCORE_NUM_MAC_ADDRESSES - wl->num_mac_addr > 0xffffff)
 		wl1271_warning("NIC part of the MAC address wraps around!");
 
-	for (i = 0; i < n; i++) {
+	for (i = 0; i < wl->num_mac_addr; i++) {
 		wl->addresses[i].addr[0] = (u8)(oui >> 16);
 		wl->addresses[i].addr[1] = (u8)(oui >> 8);
 		wl->addresses[i].addr[2] = (u8) oui;
@@ -5089,7 +5091,22 @@ static void wl12xx_derive_mac_addresses(struct wl1271 *wl,
 		nic++;
 	}
 
-	wl->hw->wiphy->n_addresses = n;
+	/* we may be one address short at the most */
+	WARN_ON(wl->num_mac_addr + 1 < WLCORE_NUM_MAC_ADDRESSES);
+
+	/*
+	 * turn on the LAA bit in the first address and use it as
+	 * the last address.
+	 */
+	if (wl->num_mac_addr < WLCORE_NUM_MAC_ADDRESSES) {
+		int idx = WLCORE_NUM_MAC_ADDRESSES - 1;
+		memcpy(&wl->addresses[idx], &wl->addresses[0],
+		       sizeof(wl->addresses[0]));
+		/* LAA bit */
+		wl->addresses[idx].addr[2] |= BIT(1);
+	}
+
+	wl->hw->wiphy->n_addresses = WLCORE_NUM_MAC_ADDRESSES;
 	wl->hw->wiphy->addresses = wl->addresses;
 }
 
@@ -5128,8 +5145,7 @@ static int wl1271_register_hw(struct wl1271 *wl)
 	if (wl->mac80211_registered)
 		return 0;
 
-	wl1271_fetch_nvs(wl);
-	if (wl->nvs != NULL) {
+	if (wl->nvs_len >= 12) {
 		/* NOTE: The wl->nvs->nvs element must be first, in
 		 * order to simplify the casting, we assume it is at
 		 * the beginning of the wl->nvs structure.
@@ -5149,7 +5165,7 @@ static int wl1271_register_hw(struct wl1271 *wl)
 		nic_addr = wl->fuse_nic_addr + 1;
 	}
 
-	wl12xx_derive_mac_addresses(wl, oui_addr, nic_addr, 2);
+	wl12xx_derive_mac_addresses(wl, oui_addr, nic_addr);
 
 	ret = ieee80211_register_hw(wl->hw);
 	if (ret < 0) {
@@ -5179,7 +5195,7 @@ static void wl1271_unregister_hw(struct wl1271 *wl)
 
 static const struct ieee80211_iface_limit wlcore_iface_limits[] = {
 	{
-		.max = 2,
+		.max = 3,
 		.types = BIT(NL80211_IFTYPE_STATION),
 	},
 	{
@@ -5194,7 +5210,7 @@ static const struct ieee80211_iface_combination
 wlcore_iface_combinations[] = {
 	{
 	  .num_different_channels = 1,
-	  .max_interfaces = 2,
+	  .max_interfaces = 3,
 	  .limits = wlcore_iface_limits,
 	  .n_limits = ARRAY_SIZE(wlcore_iface_limits),
 	},
@@ -5310,7 +5326,7 @@ static int wl1271_init_ieee80211(struct wl1271 *wl)
 
 #define WL1271_DEFAULT_CHANNEL 0
 
-struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size)
+struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size)
 {
 	struct ieee80211_hw *hw;
 	struct wl1271 *wl;
@@ -5390,17 +5406,19 @@ struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size)
 
 	spin_lock_init(&wl->wl_lock);
 
-	wl->state = WL1271_STATE_OFF;
+	wl->state = WLCORE_STATE_OFF;
 	wl->fw_type = WL12XX_FW_TYPE_NONE;
 	mutex_init(&wl->mutex);
 	mutex_init(&wl->flush_mutex);
+	init_completion(&wl->nvs_loading_complete);
 
-	order = get_order(WL1271_AGGR_BUFFER_SIZE);
+	order = get_order(aggr_buf_size);
 	wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
 	if (!wl->aggr_buf) {
 		ret = -ENOMEM;
 		goto err_wq;
 	}
+	wl->aggr_buf_size = aggr_buf_size;
 
 	wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
 	if (!wl->dummy_packet) {
@@ -5463,8 +5481,7 @@ int wlcore_free_hw(struct wl1271 *wl)
 	device_remove_file(wl->dev, &dev_attr_bt_coex_state);
 	free_page((unsigned long)wl->fwlog);
 	dev_kfree_skb(wl->dummy_packet);
-	free_pages((unsigned long)wl->aggr_buf,
-			get_order(WL1271_AGGR_BUFFER_SIZE));
+	free_pages((unsigned long)wl->aggr_buf, get_order(wl->aggr_buf_size));
 
 	wl1271_debugfs_exit(wl);
 
@@ -5514,17 +5531,32 @@ static irqreturn_t wl12xx_hardirq(int irq, void *cookie)
 	return IRQ_WAKE_THREAD;
 }
 
-int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
+static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 {
+	struct wl1271 *wl = context;
+	struct platform_device *pdev = wl->pdev;
 	struct wl12xx_platform_data *pdata = pdev->dev.platform_data;
 	unsigned long irqflags;
 	int ret;
 
-	if (!wl->ops || !wl->ptable) {
-		ret = -EINVAL;
-		goto out_free_hw;
+	if (fw) {
+		wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
+		if (!wl->nvs) {
+			wl1271_error("Could not allocate nvs data");
+			goto out;
+		}
+		wl->nvs_len = fw->size;
+	} else {
+		wl1271_debug(DEBUG_BOOT, "Could not get nvs file %s",
+			     WL12XX_NVS_NAME);
+		wl->nvs = NULL;
+		wl->nvs_len = 0;
 	}
 
+	ret = wl->ops->setup(wl);
+	if (ret < 0)
+		goto out_free_nvs;
+
 	BUG_ON(wl->num_tx_desc > WLCORE_MAX_TX_DESCRIPTORS);
 
 	/* adjust some runtime configuration parameters */
@@ -5533,11 +5565,8 @@ int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
 	wl->irq = platform_get_irq(pdev, 0);
 	wl->platform_quirks = pdata->platform_quirks;
 	wl->set_power = pdata->set_power;
-	wl->dev = &pdev->dev;
 	wl->if_ops = pdata->ops;
 
-	platform_set_drvdata(pdev, wl);
-
 	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
 		irqflags = IRQF_TRIGGER_RISING;
 	else
@@ -5548,7 +5577,7 @@ int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
 				   pdev->name, wl);
 	if (ret < 0) {
 		wl1271_error("request_irq() failed: %d", ret);
-		goto out_free_hw;
+		goto out_free_nvs;
 	}
 
 #ifdef CONFIG_PM
@@ -5607,6 +5636,7 @@ int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
 		goto out_hw_pg_ver;
 	}
 
+	wl->initialized = true;
 	goto out;
 
 out_hw_pg_ver:
@@ -5621,10 +5651,33 @@ out_unreg:
 out_irq:
 	free_irq(wl->irq, wl);
 
-out_free_hw:
-	wlcore_free_hw(wl);
+out_free_nvs:
+	kfree(wl->nvs);
 
 out:
+	release_firmware(fw);
+	complete_all(&wl->nvs_loading_complete);
+}
+
+int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
+{
+	int ret;
+
+	if (!wl->ops || !wl->ptable)
+		return -EINVAL;
+
+	wl->dev = &pdev->dev;
+	wl->pdev = pdev;
+	platform_set_drvdata(pdev, wl);
+
+	ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
+				      WL12XX_NVS_NAME, &pdev->dev, GFP_KERNEL,
+				      wl, wlcore_nvs_cb);
+	if (ret < 0) {
+		wl1271_error("request_firmware_nowait failed: %d", ret);
+		complete_all(&wl->nvs_loading_complete);
+	}
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(wlcore_probe);
@@ -5633,6 +5686,10 @@ int __devexit wlcore_remove(struct platform_device *pdev)
 {
 	struct wl1271 *wl = platform_get_drvdata(pdev);
 
+	wait_for_completion(&wl->nvs_loading_complete);
+	if (!wl->initialized)
+		return 0;
+
 	if (wl->irq_wake_enabled) {
 		device_init_wakeup(wl->dev, 0);
 		disable_irq_wake(wl->irq);
@@ -5663,3 +5720,4 @@ MODULE_PARM_DESC(no_recovery, "Prevent HW recovery. FW will remain stuck.");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
 MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
+MODULE_FIRMWARE(WL12XX_NVS_NAME);
diff --git a/drivers/net/wireless/ti/wlcore/ps.c b/drivers/net/wireless/ti/wlcore/ps.c
index 46d36fd30eb..4d1414a673f 100644
--- a/drivers/net/wireless/ti/wlcore/ps.c
+++ b/drivers/net/wireless/ti/wlcore/ps.c
@@ -28,7 +28,7 @@
 
 #define WL1271_WAKEUP_TIMEOUT 500
 
-#define ELP_ENTRY_DELAY  5
+#define ELP_ENTRY_DELAY  30
 
 void wl1271_elp_work(struct work_struct *work)
 {
@@ -44,7 +44,7 @@ void wl1271_elp_work(struct work_struct *work)
 
 	mutex_lock(&wl->mutex);
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	/* our work might have been already cancelled */
@@ -98,11 +98,7 @@ void wl1271_ps_elp_sleep(struct wl1271 *wl)
 			return;
 	}
 
-	if (wl->conf.conn.forced_ps)
-		timeout = ELP_ENTRY_DELAY;
-	else
-		timeout = wl->conf.conn.dynamic_ps_timeout;
-
+	timeout = ELP_ENTRY_DELAY;
 	ieee80211_queue_delayed_work(wl->hw, &wl->elp_work,
 				     msecs_to_jiffies(timeout));
 }
diff --git a/drivers/net/wireless/ti/wlcore/rx.c b/drivers/net/wireless/ti/wlcore/rx.c
index f55e2f9e7ac..9ee0ec6fd1d 100644
--- a/drivers/net/wireless/ti/wlcore/rx.c
+++ b/drivers/net/wireless/ti/wlcore/rx.c
@@ -221,7 +221,7 @@ int wlcore_rx(struct wl1271 *wl, struct wl_fw_status_1 *status)
 			pkt_len = wlcore_rx_get_buf_size(wl, des);
 			align_pkt_len = wlcore_rx_get_align_buf_size(wl,
 								     pkt_len);
-			if (buf_size + align_pkt_len > WL1271_AGGR_BUFFER_SIZE)
+			if (buf_size + align_pkt_len > wl->aggr_buf_size)
 				break;
 			buf_size += align_pkt_len;
 			rx_counter++;
diff --git a/drivers/net/wireless/ti/wlcore/scan.c b/drivers/net/wireless/ti/wlcore/scan.c
index dbeca1bfbb2..d00501493df 100644
--- a/drivers/net/wireless/ti/wlcore/scan.c
+++ b/drivers/net/wireless/ti/wlcore/scan.c
@@ -46,7 +46,7 @@ void wl1271_scan_complete_work(struct work_struct *work)
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF)
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		goto out;
 
 	if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
@@ -184,11 +184,7 @@ static int wl1271_scan_send(struct wl1271 *wl, struct ieee80211_vif *vif,
 	if (passive)
 		scan_options |= WL1271_SCAN_OPT_PASSIVE;
 
-	if (wlvif->bss_type == BSS_TYPE_AP_BSS ||
-	    test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
-		cmd->params.role_id = wlvif->role_id;
-	else
-		cmd->params.role_id = wlvif->dev_role_id;
+	cmd->params.role_id = wlvif->role_id;
 
 	if (WARN_ON(cmd->params.role_id == WL12XX_INVALID_ROLE_ID)) {
 		ret = -EINVAL;
@@ -593,7 +589,7 @@ wl12xx_scan_sched_scan_ssid_list(struct wl1271 *wl,
 		goto out;
 	}
 
-	cmd->role_id = wlvif->dev_role_id;
+	cmd->role_id = wlvif->role_id;
 	if (!n_match_ssids) {
 		/* No filter, with ssids */
 		type = SCAN_SSID_FILTER_DISABLED;
@@ -683,7 +679,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
 	if (!cfg)
 		return -ENOMEM;
 
-	cfg->role_id = wlvif->dev_role_id;
+	cfg->role_id = wlvif->role_id;
 	cfg->rssi_threshold = c->rssi_threshold;
 	cfg->snr_threshold  = c->snr_threshold;
 	cfg->n_probe_reqs = c->num_probe_reqs;
@@ -718,7 +714,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
 	if (!force_passive && cfg->active[0]) {
 		u8 band = IEEE80211_BAND_2GHZ;
 		ret = wl12xx_cmd_build_probe_req(wl, wlvif,
-						 wlvif->dev_role_id, band,
+						 wlvif->role_id, band,
 						 req->ssids[0].ssid,
 						 req->ssids[0].ssid_len,
 						 ies->ie[band],
@@ -732,7 +728,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
 	if (!force_passive && cfg->active[1]) {
 		u8 band = IEEE80211_BAND_5GHZ;
 		ret = wl12xx_cmd_build_probe_req(wl, wlvif,
-						 wlvif->dev_role_id, band,
+						 wlvif->role_id, band,
 						 req->ssids[0].ssid,
 						 req->ssids[0].ssid_len,
 						 ies->ie[band],
@@ -774,7 +770,7 @@ int wl1271_scan_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 	if (!start)
 		return -ENOMEM;
 
-	start->role_id = wlvif->dev_role_id;
+	start->role_id = wlvif->role_id;
 	start->tag = WL1271_SCAN_DEFAULT_TAG;
 
 	ret = wl1271_cmd_send(wl, CMD_START_PERIODIC_SCAN, start,
@@ -810,7 +806,7 @@ void wl1271_scan_sched_scan_stop(struct wl1271 *wl,  struct wl12xx_vif *wlvif)
 		return;
 	}
 
-	stop->role_id = wlvif->dev_role_id;
+	stop->role_id = wlvif->role_id;
 	stop->tag = WL1271_SCAN_DEFAULT_TAG;
 
 	ret = wl1271_cmd_send(wl, CMD_STOP_PERIODIC_SCAN, stop,
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index 8da4ed243eb..a519bc3adec 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -66,7 +66,13 @@
 /* HW limitation: maximum possible chunk size is 4095 bytes */
 #define WSPI_MAX_CHUNK_SIZE    4092
 
-#define WSPI_MAX_NUM_OF_CHUNKS (WL1271_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
+/*
+ * only support SPI for 12xx - this code should be reworked when 18xx
+ * support is introduced
+ */
+#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+
+#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
 
 struct wl12xx_spi_glue {
 	struct device *dev;
@@ -271,7 +277,7 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
 	u32 chunk_len;
 	int i;
 
-	WARN_ON(len > WL1271_AGGR_BUFFER_SIZE);
+	WARN_ON(len > SPI_AGGR_BUFFER_SIZE);
 
 	spi_message_init(&m);
 	memset(t, 0, sizeof(t));
diff --git a/drivers/net/wireless/ti/wlcore/testmode.c b/drivers/net/wireless/ti/wlcore/testmode.c
index 49e5ee1525c..f3442762d88 100644
--- a/drivers/net/wireless/ti/wlcore/testmode.c
+++ b/drivers/net/wireless/ti/wlcore/testmode.c
@@ -92,7 +92,7 @@ static int wl1271_tm_cmd_test(struct wl1271 *wl, struct nlattr *tb[])
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -164,7 +164,7 @@ static int wl1271_tm_cmd_interrogate(struct wl1271 *wl, struct nlattr *tb[])
 
 	mutex_lock(&wl->mutex);
 
-	if (wl->state == WL1271_STATE_OFF) {
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
 		ret = -EINVAL;
 		goto out;
 	}
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index f0081f74648..a90d3cd0940 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -130,16 +130,13 @@ bool wl12xx_is_dummy_packet(struct wl1271 *wl, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(wl12xx_is_dummy_packet);
 
-u8 wl12xx_tx_get_hlid_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-			 struct sk_buff *skb)
+static u8 wl12xx_tx_get_hlid_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+				struct sk_buff *skb, struct ieee80211_sta *sta)
 {
-	struct ieee80211_tx_info *control = IEEE80211_SKB_CB(skb);
-
-	if (control->control.sta) {
+	if (sta) {
 		struct wl1271_station *wl_sta;
 
-		wl_sta = (struct wl1271_station *)
-				control->control.sta->drv_priv;
+		wl_sta = (struct wl1271_station *)sta->drv_priv;
 		return wl_sta->hlid;
 	} else {
 		struct ieee80211_hdr *hdr;
@@ -156,7 +153,7 @@ u8 wl12xx_tx_get_hlid_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 }
 
 u8 wl12xx_tx_get_hlid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-		      struct sk_buff *skb)
+		      struct sk_buff *skb, struct ieee80211_sta *sta)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
@@ -164,7 +161,7 @@ u8 wl12xx_tx_get_hlid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		return wl->system_hlid;
 
 	if (wlvif->bss_type == BSS_TYPE_AP_BSS)
-		return wl12xx_tx_get_hlid_ap(wl, wlvif, skb);
+		return wl12xx_tx_get_hlid_ap(wl, wlvif, skb, sta);
 
 	if ((test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
 	     test_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags)) &&
@@ -196,7 +193,7 @@ static int wl1271_tx_allocate(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 	int id, ret = -EBUSY, ac;
 	u32 spare_blocks;
 
-	if (buf_offset + total_len > WL1271_AGGR_BUFFER_SIZE)
+	if (buf_offset + total_len > wl->aggr_buf_size)
 		return -EAGAIN;
 
 	spare_blocks = wlcore_hw_get_spare_blocks(wl, is_gem);
@@ -322,8 +319,12 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		if (hlid == wlvif->ap.global_hlid)
 			rate_idx = wlvif->ap.mgmt_rate_idx;
 		else if (hlid == wlvif->ap.bcast_hlid ||
-			 skb->protocol == cpu_to_be16(ETH_P_PAE))
-			/* send AP bcast and EAPOLs using the min basic rate */
+			 skb->protocol == cpu_to_be16(ETH_P_PAE) ||
+			 !ieee80211_is_data(frame_control))
+			/*
+			 * send non-data, bcast and EAPOLs using the
+			 * min basic rate
+			 */
 			rate_idx = wlvif->ap.bcast_rate_idx;
 		else
 			rate_idx = wlvif->ap.ucast_rate_idx[ac];
@@ -344,13 +345,12 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 
 /* caller must hold wl->mutex */
 static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-				   struct sk_buff *skb, u32 buf_offset)
+				   struct sk_buff *skb, u32 buf_offset, u8 hlid)
 {
 	struct ieee80211_tx_info *info;
 	u32 extra = 0;
 	int ret = 0;
 	u32 total_len;
-	u8 hlid;
 	bool is_dummy;
 	bool is_gem = false;
 
@@ -359,9 +359,13 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		return -EINVAL;
 	}
 
+	if (hlid == WL12XX_INVALID_LINK_ID) {
+		wl1271_error("invalid hlid. dropping skb 0x%p", skb);
+		return -EINVAL;
+	}
+
 	info = IEEE80211_SKB_CB(skb);
 
-	/* TODO: handle dummy packets on multi-vifs */
 	is_dummy = wl12xx_is_dummy_packet(wl, skb);
 
 	if ((wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) &&
@@ -386,11 +390,6 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 
 		is_gem = (cipher == WL1271_CIPHER_SUITE_GEM);
 	}
-	hlid = wl12xx_tx_get_hlid(wl, wlvif, skb);
-	if (hlid == WL12XX_INVALID_LINK_ID) {
-		wl1271_error("invalid hlid. dropping skb 0x%p", skb);
-		return -EINVAL;
-	}
 
 	ret = wl1271_tx_allocate(wl, wlvif, skb, extra, buf_offset, hlid,
 				 is_gem);
@@ -517,7 +516,8 @@ static struct sk_buff *wl12xx_lnk_skb_dequeue(struct wl1271 *wl,
 }
 
 static struct sk_buff *wl12xx_vif_skb_dequeue(struct wl1271 *wl,
-					      struct wl12xx_vif *wlvif)
+					      struct wl12xx_vif *wlvif,
+					      u8 *hlid)
 {
 	struct sk_buff *skb = NULL;
 	int i, h, start_hlid;
@@ -544,10 +544,11 @@ static struct sk_buff *wl12xx_vif_skb_dequeue(struct wl1271 *wl,
 	if (!skb)
 		wlvif->last_tx_hlid = 0;
 
+	*hlid = wlvif->last_tx_hlid;
 	return skb;
 }
 
-static struct sk_buff *wl1271_skb_dequeue(struct wl1271 *wl)
+static struct sk_buff *wl1271_skb_dequeue(struct wl1271 *wl, u8 *hlid)
 {
 	unsigned long flags;
 	struct wl12xx_vif *wlvif = wl->last_wlvif;
@@ -556,7 +557,7 @@ static struct sk_buff *wl1271_skb_dequeue(struct wl1271 *wl)
 	/* continue from last wlvif (round robin) */
 	if (wlvif) {
 		wl12xx_for_each_wlvif_continue(wl, wlvif) {
-			skb = wl12xx_vif_skb_dequeue(wl, wlvif);
+			skb = wl12xx_vif_skb_dequeue(wl, wlvif, hlid);
 			if (skb) {
 				wl->last_wlvif = wlvif;
 				break;
@@ -565,13 +566,15 @@ static struct sk_buff *wl1271_skb_dequeue(struct wl1271 *wl)
 	}
 
 	/* dequeue from the system HLID before the restarting wlvif list */
-	if (!skb)
+	if (!skb) {
 		skb = wl12xx_lnk_skb_dequeue(wl, &wl->links[wl->system_hlid]);
+		*hlid = wl->system_hlid;
+	}
 
 	/* do a new pass over the wlvif list */
 	if (!skb) {
 		wl12xx_for_each_wlvif(wl, wlvif) {
-			skb = wl12xx_vif_skb_dequeue(wl, wlvif);
+			skb = wl12xx_vif_skb_dequeue(wl, wlvif, hlid);
 			if (skb) {
 				wl->last_wlvif = wlvif;
 				break;
@@ -591,6 +594,7 @@ static struct sk_buff *wl1271_skb_dequeue(struct wl1271 *wl)
 		int q;
 
 		skb = wl->dummy_packet;
+		*hlid = wl->system_hlid;
 		q = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
 		spin_lock_irqsave(&wl->wl_lock, flags);
 		WARN_ON_ONCE(wl->tx_queue_count[q] <= 0);
@@ -602,7 +606,7 @@ static struct sk_buff *wl1271_skb_dequeue(struct wl1271 *wl)
 }
 
 static void wl1271_skb_queue_head(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-				  struct sk_buff *skb)
+				  struct sk_buff *skb, u8 hlid)
 {
 	unsigned long flags;
 	int q = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
@@ -610,7 +614,6 @@ static void wl1271_skb_queue_head(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 	if (wl12xx_is_dummy_packet(wl, skb)) {
 		set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
 	} else {
-		u8 hlid = wl12xx_tx_get_hlid(wl, wlvif, skb);
 		skb_queue_head(&wl->links[hlid].tx_queue[q], skb);
 
 		/* make sure we dequeue the same packet next time */
@@ -686,26 +689,30 @@ int wlcore_tx_work_locked(struct wl1271 *wl)
 	unsigned long active_hlids[BITS_TO_LONGS(WL12XX_MAX_LINKS)] = {0};
 	int ret = 0;
 	int bus_ret = 0;
+	u8 hlid;
 
-	if (unlikely(wl->state == WL1271_STATE_OFF))
+	if (unlikely(wl->state != WLCORE_STATE_ON))
 		return 0;
 
-	while ((skb = wl1271_skb_dequeue(wl))) {
+	while ((skb = wl1271_skb_dequeue(wl, &hlid))) {
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 		bool has_data = false;
 
 		wlvif = NULL;
 		if (!wl12xx_is_dummy_packet(wl, skb) && info->control.vif)
 			wlvif = wl12xx_vif_to_data(info->control.vif);
+		else
+			hlid = wl->system_hlid;
 
 		has_data = wlvif && wl1271_tx_is_data_present(skb);
-		ret = wl1271_prepare_tx_frame(wl, wlvif, skb, buf_offset);
+		ret = wl1271_prepare_tx_frame(wl, wlvif, skb, buf_offset,
+					      hlid);
 		if (ret == -EAGAIN) {
 			/*
 			 * Aggregation buffer is full.
 			 * Flush buffer and try again.
 			 */
-			wl1271_skb_queue_head(wl, wlvif, skb);
+			wl1271_skb_queue_head(wl, wlvif, skb, hlid);
 
 			buf_offset = wlcore_hw_pre_pkt_send(wl, buf_offset,
 							    last_len);
@@ -722,7 +729,7 @@ int wlcore_tx_work_locked(struct wl1271 *wl)
 			 * Firmware buffer is full.
 			 * Queue back last skb, and stop aggregating.
 			 */
-			wl1271_skb_queue_head(wl, wlvif, skb);
+			wl1271_skb_queue_head(wl, wlvif, skb, hlid);
 			/* No work left, avoid scheduling redundant tx work */
 			set_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
 			goto out_ack;
@@ -732,7 +739,7 @@ int wlcore_tx_work_locked(struct wl1271 *wl)
 				 * fw still expects dummy packet,
 				 * so re-enqueue it
 				 */
-				wl1271_skb_queue_head(wl, wlvif, skb);
+				wl1271_skb_queue_head(wl, wlvif, skb, hlid);
 			else
 				ieee80211_free_txskb(wl->hw, skb);
 			goto out_ack;
@@ -1069,39 +1076,54 @@ void wl12xx_tx_reset(struct wl1271 *wl)
 /* caller must *NOT* hold wl->mutex */
 void wl1271_tx_flush(struct wl1271 *wl)
 {
-	unsigned long timeout;
+	unsigned long timeout, start_time;
 	int i;
-	timeout = jiffies + usecs_to_jiffies(WL1271_TX_FLUSH_TIMEOUT);
+	start_time = jiffies;
+	timeout = start_time + usecs_to_jiffies(WL1271_TX_FLUSH_TIMEOUT);
 
 	/* only one flush should be in progress, for consistent queue state */
 	mutex_lock(&wl->flush_mutex);
 
+	mutex_lock(&wl->mutex);
+	if (wl->tx_frames_cnt == 0 && wl1271_tx_total_queue_count(wl) == 0) {
+		mutex_unlock(&wl->mutex);
+		goto out;
+	}
+
 	wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_FLUSH);
 
 	while (!time_after(jiffies, timeout)) {
-		mutex_lock(&wl->mutex);
-		wl1271_debug(DEBUG_TX, "flushing tx buffer: %d %d",
+		wl1271_debug(DEBUG_MAC80211, "flushing tx buffer: %d %d",
 			     wl->tx_frames_cnt,
 			     wl1271_tx_total_queue_count(wl));
+
+		/* force Tx and give the driver some time to flush data */
+		mutex_unlock(&wl->mutex);
+		if (wl1271_tx_total_queue_count(wl))
+			wl1271_tx_work(&wl->tx_work);
+		msleep(20);
+		mutex_lock(&wl->mutex);
+
 		if ((wl->tx_frames_cnt == 0) &&
 		    (wl1271_tx_total_queue_count(wl) == 0)) {
-			mutex_unlock(&wl->mutex);
-			goto out;
+			wl1271_debug(DEBUG_MAC80211, "tx flush took %d ms",
+				     jiffies_to_msecs(jiffies - start_time));
+			goto out_wake;
 		}
-		mutex_unlock(&wl->mutex);
-		msleep(1);
 	}
 
-	wl1271_warning("Unable to flush all TX buffers, timed out.");
+	wl1271_warning("Unable to flush all TX buffers, "
+		       "timed out (timeout %d ms",
+		       WL1271_TX_FLUSH_TIMEOUT / 1000);
 
 	/* forcibly flush all Tx buffers on our queues */
-	mutex_lock(&wl->mutex);
 	for (i = 0; i < WL12XX_MAX_LINKS; i++)
 		wl1271_tx_reset_link_queues(wl, i);
-	mutex_unlock(&wl->mutex);
 
-out:
+out_wake:
 	wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_FLUSH);
+	mutex_unlock(&wl->mutex);
+out:
 	mutex_unlock(&wl->flush_mutex);
 }
 EXPORT_SYMBOL_GPL(wl1271_tx_flush);
diff --git a/drivers/net/wireless/ti/wlcore/tx.h b/drivers/net/wireless/ti/wlcore/tx.h
index 1e939b01615..349520d8b72 100644
--- a/drivers/net/wireless/ti/wlcore/tx.h
+++ b/drivers/net/wireless/ti/wlcore/tx.h
@@ -243,10 +243,8 @@ u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band);
 u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set,
 				enum ieee80211_band rate_band);
 u32 wl1271_tx_min_rate_get(struct wl1271 *wl, u32 rate_set);
-u8 wl12xx_tx_get_hlid_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-			 struct sk_buff *skb);
 u8 wl12xx_tx_get_hlid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
-		      struct sk_buff *skb);
+		      struct sk_buff *skb, struct ieee80211_sta *sta);
 void wl1271_tx_reset_link_queues(struct wl1271 *wl, u8 hlid);
 void wl1271_handle_tx_low_watermark(struct wl1271 *wl);
 bool wl12xx_is_dummy_packet(struct wl1271 *wl, struct sk_buff *skb);
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index 0ce7a8ebbd4..68584aa0f2b 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -31,12 +31,19 @@
 /* The maximum number of Tx descriptors in all chip families */
 #define WLCORE_MAX_TX_DESCRIPTORS 32
 
+/*
+ * We always allocate this number of mac addresses. If we don't
+ * have enough allocated addresses, the LAA bit is used
+ */
+#define WLCORE_NUM_MAC_ADDRESSES 3
+
 /* forward declaration */
 struct wl1271_tx_hw_descr;
 enum wl_rx_buf_align;
 struct wl1271_rx_descriptor;
 
 struct wlcore_ops {
+	int (*setup)(struct wl1271 *wl);
 	int (*identify_chip)(struct wl1271 *wl);
 	int (*identify_fw)(struct wl1271 *wl);
 	int (*boot)(struct wl1271 *wl);
@@ -139,10 +146,12 @@ struct wl1271_stats {
 };
 
 struct wl1271 {
+	bool initialized;
 	struct ieee80211_hw *hw;
 	bool mac80211_registered;
 
 	struct device *dev;
+	struct platform_device *pdev;
 
 	void *if_priv;
 
@@ -153,7 +162,7 @@ struct wl1271 {
 
 	spinlock_t wl_lock;
 
-	enum wl1271_state state;
+	enum wlcore_state state;
 	enum wl12xx_fw_type fw_type;
 	bool plt;
 	enum plt_mode plt_mode;
@@ -181,7 +190,7 @@ struct wl1271 {
 	u32 fuse_nic_addr;
 
 	/* we have up to 2 MAC addresses */
-	struct mac_address addresses[2];
+	struct mac_address addresses[WLCORE_NUM_MAC_ADDRESSES];
 	int channel;
 	u8 system_hlid;
 
@@ -190,6 +199,8 @@ struct wl1271 {
 	unsigned long roc_map[BITS_TO_LONGS(WL12XX_MAX_ROLES)];
 	unsigned long rate_policies_map[
 			BITS_TO_LONGS(WL12XX_MAX_RATE_POLICIES)];
+	unsigned long klv_templates_map[
+			BITS_TO_LONGS(WLCORE_MAX_KLV_TEMPLATES)];
 
 	struct list_head wlvif_list;
 
@@ -237,6 +248,7 @@ struct wl1271 {
 
 	/* Intermediate buffer, used for packet aggregation */
 	u8 *aggr_buf;
+	u32 aggr_buf_size;
 
 	/* Reusable dummy packet template */
 	struct sk_buff *dummy_packet;
@@ -393,13 +405,18 @@ struct wl1271 {
 	/* sleep auth value currently configured to FW */
 	int sleep_auth;
 
+	/* the number of allocated MAC addresses in this chip */
+	int num_mac_addr;
+
 	/* the minimum FW version required for the driver to work */
 	unsigned int min_fw_ver[NUM_FW_VER];
+
+	struct completion nvs_loading_complete;
 };
 
 int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev);
 int __devexit wlcore_remove(struct platform_device *pdev);
-struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size);
+struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size);
 int wlcore_free_hw(struct wl1271 *wl);
 int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 		   struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index c0505635bb0..6678d4b1861 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -66,6 +66,7 @@
 #define WLCORE_NUM_BANDS           2
 
 #define WL12XX_MAX_RATE_POLICIES 16
+#define WLCORE_MAX_KLV_TEMPLATES 4
 
 /* Defined by FW as 0. Will not be freed or allocated. */
 #define WL12XX_SYSTEM_HLID         0
@@ -83,11 +84,10 @@
 #define WL1271_AP_BSS_INDEX        0
 #define WL1271_AP_DEF_BEACON_EXP   20
 
-#define WL1271_AGGR_BUFFER_SIZE (5 * PAGE_SIZE)
-
-enum wl1271_state {
-	WL1271_STATE_OFF,
-	WL1271_STATE_ON,
+enum wlcore_state {
+	WLCORE_STATE_OFF,
+	WLCORE_STATE_RESTARTING,
+	WLCORE_STATE_ON,
 };
 
 enum wl12xx_fw_type {
@@ -124,6 +124,7 @@ struct wl1271_chip {
 	u32 id;
 	char fw_ver_str[ETHTOOL_BUSINFO_LEN];
 	unsigned int fw_ver[NUM_FW_VER];
+	char phy_fw_ver_str[ETHTOOL_BUSINFO_LEN];
 };
 
 #define NUM_TX_QUEUES              4
@@ -337,6 +338,8 @@ struct wl12xx_vif {
 			u8 ap_rate_idx;
 			u8 p2p_rate_idx;
 
+			u8 klv_template_id;
+
 			bool qos;
 		} sta;
 		struct {
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 00f6e69c1dc..730186d0449 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1520,13 +1520,12 @@ static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
 			  union iwreq_data *wrqu, char *extra)
 {
 	struct wl3501_card *this = netdev_priv(dev);
-	static const u8 bcast[ETH_ALEN] = { 255, 255, 255, 255, 255, 255 };
 	int rc = -EINVAL;
 
 	/* FIXME: we support other ARPHRDs...*/
 	if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 		goto out;
-	if (!memcmp(bcast, wrqu->ap_addr.sa_data, ETH_ALEN)) {
+	if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) {
 		/* FIXME: rescan? */
 	} else
 		memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index c9e2660e126..114364b5d46 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -937,7 +937,9 @@ static int fill_ctrlset(struct zd_mac *mac,
  * control block of the skbuff will be initialized. If necessary the incoming
  * mac80211 queues will be stopped.
  */
-static void zd_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+static void zd_op_tx(struct ieee80211_hw *hw,
+		     struct ieee80211_tx_control *control,
+		     struct sk_buff *skb)
 {
 	struct zd_mac *mac = zd_hw_mac(hw);
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1176,7 +1178,7 @@ static void zd_beacon_done(struct zd_mac *mac)
 		skb = ieee80211_get_buffered_bc(mac->hw, mac->vif);
 		if (!skb)
 			break;
-		zd_op_tx(mac->hw, skb);
+		zd_op_tx(mac->hw, NULL, skb);
 	}
 
 	/*
@@ -1399,7 +1401,8 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
 
 	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
 		    IEEE80211_HW_SIGNAL_UNSPEC |
-		    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
+		    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		    IEEE80211_HW_MFP_CAPABLE;
 
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_MESH_POINT) |
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index af83c43bcdb..ef2b171e351 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -1164,8 +1164,7 @@ void zd_usb_reset_rx_idle_timer(struct zd_usb *usb)
 {
 	struct zd_usb_rx *rx = &usb->rx;
 
-	cancel_delayed_work(&rx->idle_work);
-	queue_delayed_work(zd_workqueue, &rx->idle_work, ZD_RX_IDLE_INTERVAL);
+	mod_delayed_work(zd_workqueue, &rx->idle_work, ZD_RX_IDLE_INTERVAL);
 }
 
 static inline void init_usb_interrupt(struct zd_usb *usb)
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 682633bfe00..05593d88202 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -635,9 +635,7 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
 		return;
 
 	BUG_ON(npo.copy_prod > ARRAY_SIZE(netbk->grant_copy_op));
-	ret = HYPERVISOR_grant_table_op(GNTTABOP_copy, &netbk->grant_copy_op,
-					npo.copy_prod);
-	BUG_ON(ret != 0);
+	gnttab_batch_copy(netbk->grant_copy_op, npo.copy_prod);
 
 	while ((skb = __skb_dequeue(&rxq)) != NULL) {
 		sco = (struct skb_cb_overlay *)skb->cb;
@@ -1460,18 +1458,15 @@ static void xen_netbk_tx_submit(struct xen_netbk *netbk)
 static void xen_netbk_tx_action(struct xen_netbk *netbk)
 {
 	unsigned nr_gops;
-	int ret;
 
 	nr_gops = xen_netbk_tx_build_gops(netbk);
 
 	if (nr_gops == 0)
 		return;
-	ret = HYPERVISOR_grant_table_op(GNTTABOP_copy,
-					netbk->tx_copy_ops, nr_gops);
-	BUG_ON(ret);
 
-	xen_netbk_tx_submit(netbk);
+	gnttab_batch_copy(netbk->tx_copy_ops, nr_gops);
 
+	xen_netbk_tx_submit(netbk);
 }
 
 static void xen_netbk_idx_release(struct xen_netbk *netbk, u16 pending_idx)
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 30899901aef..c934fe8583f 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -57,8 +57,7 @@
 static const struct ethtool_ops xennet_ethtool_ops;
 
 struct netfront_cb {
-	struct page *page;
-	unsigned offset;
+	int pull_to;
 };
 
 #define NETFRONT_SKB_CB(skb)	((struct netfront_cb *)((skb)->cb))
@@ -867,15 +866,9 @@ static int handle_incoming_queue(struct net_device *dev,
 	struct sk_buff *skb;
 
 	while ((skb = __skb_dequeue(rxq)) != NULL) {
-		struct page *page = NETFRONT_SKB_CB(skb)->page;
-		void *vaddr = page_address(page);
-		unsigned offset = NETFRONT_SKB_CB(skb)->offset;
-
-		memcpy(skb->data, vaddr + offset,
-		       skb_headlen(skb));
+		int pull_to = NETFRONT_SKB_CB(skb)->pull_to;
 
-		if (page != skb_frag_page(&skb_shinfo(skb)->frags[0]))
-			__free_page(page);
+		__pskb_pull_tail(skb, pull_to - skb_headlen(skb));
 
 		/* Ethernet work: Delayed to here as it peeks the header. */
 		skb->protocol = eth_type_trans(skb, dev);
@@ -913,7 +906,6 @@ static int xennet_poll(struct napi_struct *napi, int budget)
 	struct sk_buff_head errq;
 	struct sk_buff_head tmpq;
 	unsigned long flags;
-	unsigned int len;
 	int err;
 
 	spin_lock(&np->rx_lock);
@@ -955,24 +947,13 @@ err:
 			}
 		}
 
-		NETFRONT_SKB_CB(skb)->page =
-			skb_frag_page(&skb_shinfo(skb)->frags[0]);
-		NETFRONT_SKB_CB(skb)->offset = rx->offset;
-
-		len = rx->status;
-		if (len > RX_COPY_THRESHOLD)
-			len = RX_COPY_THRESHOLD;
-		skb_put(skb, len);
+		NETFRONT_SKB_CB(skb)->pull_to = rx->status;
+		if (NETFRONT_SKB_CB(skb)->pull_to > RX_COPY_THRESHOLD)
+			NETFRONT_SKB_CB(skb)->pull_to = RX_COPY_THRESHOLD;
 
-		if (rx->status > len) {
-			skb_shinfo(skb)->frags[0].page_offset =
-				rx->offset + len;
-			skb_frag_size_set(&skb_shinfo(skb)->frags[0], rx->status - len);
-			skb->data_len = rx->status - len;
-		} else {
-			__skb_fill_page_desc(skb, 0, NULL, 0, 0);
-			skb_shinfo(skb)->nr_frags = 0;
-		}
+		skb_shinfo(skb)->frags[0].page_offset = rx->offset;
+		skb_frag_size_set(&skb_shinfo(skb)->frags[0], rx->status);
+		skb->data_len = rx->status;
 
 		i = xennet_fill_frags(np, skb, &tmpq);
 
@@ -999,7 +980,7 @@ err:
 		 * receive throughout using the standard receive
 		 * buffer size was cut by 25%(!!!).
 		 */
-		skb->truesize += skb->data_len - (RX_COPY_THRESHOLD - len);
+		skb->truesize += skb->data_len - RX_COPY_THRESHOLD;
 		skb->len += skb->data_len;
 
 		if (rx->flags & XEN_NETRXF_csum_blank)
@@ -1731,7 +1712,7 @@ static void netback_changed(struct xenbus_device *dev,
 		break;
 
 	case XenbusStateConnected:
-		netif_notify_peers(netdev);
+		netdev_notify_peers(netdev);
 		break;
 
 	case XenbusStateClosing:
diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index 3b20b73ee64..ec857676c39 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -5,21 +5,9 @@
 menu "Near Field Communication (NFC) devices"
 	depends on NFC
 
-config PN544_NFC
-	tristate "PN544 NFC driver"
-	depends on I2C
-	select CRC_CCITT
-	default n
-	---help---
-	  Say yes if you want PN544 Near Field Communication driver.
-	  This is for i2c connected version. If unsure, say N here.
-
-	  To compile this driver as a module, choose m here. The module will
-	  be called pn544.
-
 config PN544_HCI_NFC
 	tristate "HCI PN544 NFC driver"
-	depends on I2C && NFC_SHDLC
+	depends on I2C && NFC_HCI && NFC_SHDLC
 	select CRC_CCITT
 	default n
 	---help---
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index 473e44cef61..bf05831fdf0 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -2,7 +2,6 @@
 # Makefile for nfc devices
 #
 
-obj-$(CONFIG_PN544_NFC)		+= pn544.o
 obj-$(CONFIG_PN544_HCI_NFC)	+= pn544_hci.o
 obj-$(CONFIG_NFC_PN533)		+= pn533.o
 obj-$(CONFIG_NFC_WILINK)	+= nfcwilink.o
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index e7fd4938f9b..50b1ee41afc 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -352,8 +352,6 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
 	struct nfcwilink *drv = priv_data;
 	int rc;
 
-	nfc_dev_dbg(&drv->pdev->dev, "receive entry, len %d", skb->len);
-
 	if (!skb)
 		return -EFAULT;
 
@@ -362,6 +360,8 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
 		return -EFAULT;
 	}
 
+	nfc_dev_dbg(&drv->pdev->dev, "receive entry, len %d", skb->len);
+
 	/* strip the ST header
 	(apart for the chnl byte, which is not received in the hdr) */
 	skb_pull(skb, (NFCWILINK_HDR_LEN-1));
@@ -604,21 +604,7 @@ static struct platform_driver nfcwilink_driver = {
 	},
 };
 
-/* ------- Module Init/Exit interfaces ------ */
-static int __init nfcwilink_init(void)
-{
-	printk(KERN_INFO "NFC Driver for TI WiLink");
-
-	return platform_driver_register(&nfcwilink_driver);
-}
-
-static void __exit nfcwilink_exit(void)
-{
-	platform_driver_unregister(&nfcwilink_driver);
-}
-
-module_init(nfcwilink_init);
-module_exit(nfcwilink_exit);
+module_platform_driver(nfcwilink_driver);
 
 /* ------ Module Info ------ */
 
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index d606f52fec8..97c440a8cd6 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -356,6 +356,7 @@ struct pn533 {
 
 	struct workqueue_struct	*wq;
 	struct work_struct cmd_work;
+	struct work_struct cmd_complete_work;
 	struct work_struct poll_work;
 	struct work_struct mi_work;
 	struct work_struct tg_work;
@@ -383,6 +384,19 @@ struct pn533 {
 	u8 tgt_mode;
 
 	u32 device_type;
+
+	struct list_head cmd_queue;
+	u8 cmd_pending;
+};
+
+struct pn533_cmd {
+	struct list_head queue;
+	struct pn533_frame *out_frame;
+	struct pn533_frame *in_frame;
+	int in_frame_len;
+	pn533_cmd_complete_t cmd_complete;
+	void *arg;
+	gfp_t flags;
 };
 
 struct pn533_frame {
@@ -487,7 +501,7 @@ static bool pn533_rx_frame_is_cmd_response(struct pn533_frame *frame, u8 cmd)
 
 static void pn533_wq_cmd_complete(struct work_struct *work)
 {
-	struct pn533 *dev = container_of(work, struct pn533, cmd_work);
+	struct pn533 *dev = container_of(work, struct pn533, cmd_complete_work);
 	struct pn533_frame *in_frame;
 	int rc;
 
@@ -502,7 +516,7 @@ static void pn533_wq_cmd_complete(struct work_struct *work)
 					PN533_FRAME_CMD_PARAMS_LEN(in_frame));
 
 	if (rc != -EINPROGRESS)
-		mutex_unlock(&dev->cmd_lock);
+		queue_work(dev->wq, &dev->cmd_work);
 }
 
 static void pn533_recv_response(struct urb *urb)
@@ -550,7 +564,7 @@ static void pn533_recv_response(struct urb *urb)
 	dev->wq_in_frame = in_frame;
 
 sched_wq:
-	queue_work(dev->wq, &dev->cmd_work);
+	queue_work(dev->wq, &dev->cmd_complete_work);
 }
 
 static int pn533_submit_urb_for_response(struct pn533 *dev, gfp_t flags)
@@ -606,7 +620,7 @@ static void pn533_recv_ack(struct urb *urb)
 
 sched_wq:
 	dev->wq_in_frame = NULL;
-	queue_work(dev->wq, &dev->cmd_work);
+	queue_work(dev->wq, &dev->cmd_complete_work);
 }
 
 static int pn533_submit_urb_for_ack(struct pn533 *dev, gfp_t flags)
@@ -669,6 +683,31 @@ error:
 	return rc;
 }
 
+static void pn533_wq_cmd(struct work_struct *work)
+{
+	struct pn533 *dev = container_of(work, struct pn533, cmd_work);
+	struct pn533_cmd *cmd;
+
+	mutex_lock(&dev->cmd_lock);
+
+	if (list_empty(&dev->cmd_queue)) {
+		dev->cmd_pending = 0;
+		mutex_unlock(&dev->cmd_lock);
+		return;
+	}
+
+	cmd = list_first_entry(&dev->cmd_queue, struct pn533_cmd, queue);
+
+	mutex_unlock(&dev->cmd_lock);
+
+	__pn533_send_cmd_frame_async(dev, cmd->out_frame, cmd->in_frame,
+				     cmd->in_frame_len, cmd->cmd_complete,
+				     cmd->arg, cmd->flags);
+
+	list_del(&cmd->queue);
+	kfree(cmd);
+}
+
 static int pn533_send_cmd_frame_async(struct pn533 *dev,
 					struct pn533_frame *out_frame,
 					struct pn533_frame *in_frame,
@@ -676,21 +715,44 @@ static int pn533_send_cmd_frame_async(struct pn533 *dev,
 					pn533_cmd_complete_t cmd_complete,
 					void *arg, gfp_t flags)
 {
-	int rc;
+	struct pn533_cmd *cmd;
+	int rc = 0;
 
 	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
 
-	if (!mutex_trylock(&dev->cmd_lock))
-		return -EBUSY;
+	mutex_lock(&dev->cmd_lock);
 
-	rc = __pn533_send_cmd_frame_async(dev, out_frame, in_frame,
-					in_frame_len, cmd_complete, arg, flags);
-	if (rc)
-		goto error;
+	if (!dev->cmd_pending) {
+		rc = __pn533_send_cmd_frame_async(dev, out_frame, in_frame,
+						  in_frame_len, cmd_complete,
+						  arg, flags);
+		if (!rc)
+			dev->cmd_pending = 1;
 
-	return 0;
-error:
+		goto unlock;
+	}
+
+	nfc_dev_dbg(&dev->interface->dev, "%s Queueing command", __func__);
+
+	cmd = kzalloc(sizeof(struct pn533_cmd), flags);
+	if (!cmd) {
+		rc = -ENOMEM;
+		goto unlock;
+	}
+
+	INIT_LIST_HEAD(&cmd->queue);
+	cmd->out_frame = out_frame;
+	cmd->in_frame = in_frame;
+	cmd->in_frame_len = in_frame_len;
+	cmd->cmd_complete = cmd_complete;
+	cmd->arg = arg;
+	cmd->flags = flags;
+
+	list_add_tail(&cmd->queue, &dev->cmd_queue);
+
+unlock:
 	mutex_unlock(&dev->cmd_lock);
+
 	return rc;
 }
 
@@ -1305,8 +1367,6 @@ static void pn533_listen_mode_timer(unsigned long data)
 
 	dev->cancel_listen = 1;
 
-	mutex_unlock(&dev->cmd_lock);
-
 	pn533_poll_next_mod(dev);
 
 	queue_work(dev->wq, &dev->poll_work);
@@ -2131,7 +2191,7 @@ error_cmd:
 
 	kfree(arg);
 
-	mutex_unlock(&dev->cmd_lock);
+	queue_work(dev->wq, &dev->cmd_work);
 }
 
 static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata,
@@ -2330,13 +2390,12 @@ static int pn533_probe(struct usb_interface *interface,
 			NULL, 0,
 			pn533_send_complete, dev);
 
-	INIT_WORK(&dev->cmd_work, pn533_wq_cmd_complete);
+	INIT_WORK(&dev->cmd_work, pn533_wq_cmd);
+	INIT_WORK(&dev->cmd_complete_work, pn533_wq_cmd_complete);
 	INIT_WORK(&dev->mi_work, pn533_wq_mi_recv);
 	INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data);
 	INIT_WORK(&dev->poll_work, pn533_wq_poll);
-	dev->wq = alloc_workqueue("pn533",
-				  WQ_NON_REENTRANT | WQ_UNBOUND | WQ_MEM_RECLAIM,
-				  1);
+	dev->wq = alloc_ordered_workqueue("pn533", 0);
 	if (dev->wq == NULL)
 		goto error;
 
@@ -2346,6 +2405,8 @@ static int pn533_probe(struct usb_interface *interface,
 
 	skb_queue_head_init(&dev->resp_q);
 
+	INIT_LIST_HEAD(&dev->cmd_queue);
+
 	usb_set_intfdata(interface, dev);
 
 	pn533_tx_frame_init(dev->out_frame, PN533_CMD_GET_FIRMWARE_VERSION);
@@ -2417,6 +2478,7 @@ error:
 static void pn533_disconnect(struct usb_interface *interface)
 {
 	struct pn533 *dev;
+	struct pn533_cmd *cmd, *n;
 
 	dev = usb_get_intfdata(interface);
 	usb_set_intfdata(interface, NULL);
@@ -2433,6 +2495,11 @@ static void pn533_disconnect(struct usb_interface *interface)
 
 	del_timer(&dev->listen_timer);
 
+	list_for_each_entry_safe(cmd, n, &dev->cmd_queue, queue) {
+		list_del(&cmd->queue);
+		kfree(cmd);
+	}
+
 	kfree(dev->in_frame);
 	usb_free_urb(dev->in_urb);
 	kfree(dev->out_frame);
diff --git a/drivers/nfc/pn544.c b/drivers/nfc/pn544.c
deleted file mode 100644
index 724f65d8f9e..00000000000
--- a/drivers/nfc/pn544.c
+++ /dev/null
@@ -1,893 +0,0 @@
-/*
- * Driver for the PN544 NFC chip.
- *
- * Copyright (C) Nokia Corporation
- *
- * Author: Jari Vanhala <ext-jari.vanhala@nokia.com>
- * Contact: Matti Aaltonen <matti.j.aaltonen@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/completion.h>
-#include <linux/crc-ccitt.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/miscdevice.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/nfc/pn544.h>
-#include <linux/poll.h>
-#include <linux/regulator/consumer.h>
-#include <linux/serial_core.h> /* for TCGETS */
-#include <linux/slab.h>
-
-#define DRIVER_CARD	"PN544 NFC"
-#define DRIVER_DESC	"NFC driver for PN544"
-
-static struct i2c_device_id pn544_id_table[] = {
-	{ PN544_DRIVER_NAME, 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, pn544_id_table);
-
-#define HCI_MODE	0
-#define FW_MODE		1
-
-enum pn544_state {
-	PN544_ST_COLD,
-	PN544_ST_FW_READY,
-	PN544_ST_READY,
-};
-
-enum pn544_irq {
-	PN544_NONE,
-	PN544_INT,
-};
-
-struct pn544_info {
-	struct miscdevice miscdev;
-	struct i2c_client *i2c_dev;
-	struct regulator_bulk_data regs[3];
-
-	enum pn544_state state;
-	wait_queue_head_t read_wait;
-	loff_t read_offset;
-	enum pn544_irq read_irq;
-	struct mutex read_mutex; /* Serialize read_irq access */
-	struct mutex mutex; /* Serialize info struct access */
-	u8 *buf;
-	size_t buflen;
-};
-
-static const char reg_vdd_io[]	= "Vdd_IO";
-static const char reg_vbat[]	= "VBat";
-static const char reg_vsim[]	= "VSim";
-
-/* sysfs interface */
-static ssize_t pn544_test(struct device *dev,
-			  struct device_attribute *attr, char *buf)
-{
-	struct pn544_info *info = dev_get_drvdata(dev);
-	struct i2c_client *client = info->i2c_dev;
-	struct pn544_nfc_platform_data *pdata = client->dev.platform_data;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", pdata->test());
-}
-
-static int pn544_enable(struct pn544_info *info, int mode)
-{
-	struct pn544_nfc_platform_data *pdata;
-	struct i2c_client *client = info->i2c_dev;
-
-	int r;
-
-	r = regulator_bulk_enable(ARRAY_SIZE(info->regs), info->regs);
-	if (r < 0)
-		return r;
-
-	pdata = client->dev.platform_data;
-	info->read_irq = PN544_NONE;
-	if (pdata->enable)
-		pdata->enable(mode);
-
-	if (mode) {
-		info->state = PN544_ST_FW_READY;
-		dev_dbg(&client->dev, "now in FW-mode\n");
-	} else {
-		info->state = PN544_ST_READY;
-		dev_dbg(&client->dev, "now in HCI-mode\n");
-	}
-
-	usleep_range(10000, 15000);
-
-	return 0;
-}
-
-static void pn544_disable(struct pn544_info *info)
-{
-	struct pn544_nfc_platform_data *pdata;
-	struct i2c_client *client = info->i2c_dev;
-
-	pdata = client->dev.platform_data;
-	if (pdata->disable)
-		pdata->disable();
-
-	info->state = PN544_ST_COLD;
-
-	dev_dbg(&client->dev, "Now in OFF-mode\n");
-
-	msleep(PN544_RESETVEN_TIME);
-
-	info->read_irq = PN544_NONE;
-	regulator_bulk_disable(ARRAY_SIZE(info->regs), info->regs);
-}
-
-static int check_crc(u8 *buf, int buflen)
-{
-	u8 len;
-	u16 crc;
-
-	len = buf[0] + 1;
-	if (len < 4 || len != buflen || len > PN544_MSG_MAX_SIZE) {
-		pr_err(PN544_DRIVER_NAME
-		       ": CRC; corrupt packet len %u (%d)\n", len, buflen);
-		print_hex_dump(KERN_DEBUG, "crc: ", DUMP_PREFIX_NONE,
-			       16, 2, buf, buflen, false);
-		return -EPERM;
-	}
-	crc = crc_ccitt(0xffff, buf, len - 2);
-	crc = ~crc;
-
-	if (buf[len-2] != (crc & 0xff) || buf[len-1] != (crc >> 8)) {
-		pr_err(PN544_DRIVER_NAME ": CRC error 0x%x != 0x%x 0x%x\n",
-		       crc, buf[len-1], buf[len-2]);
-
-		print_hex_dump(KERN_DEBUG, "crc: ", DUMP_PREFIX_NONE,
-			       16, 2, buf, buflen, false);
-		return -EPERM;
-	}
-	return 0;
-}
-
-static int pn544_i2c_write(struct i2c_client *client, u8 *buf, int len)
-{
-	int r;
-
-	if (len < 4 || len != (buf[0] + 1)) {
-		dev_err(&client->dev, "%s: Illegal message length: %d\n",
-			__func__, len);
-		return -EINVAL;
-	}
-
-	if (check_crc(buf, len))
-		return -EINVAL;
-
-	usleep_range(3000, 6000);
-
-	r = i2c_master_send(client, buf, len);
-	dev_dbg(&client->dev, "send: %d\n", r);
-
-	if (r == -EREMOTEIO) { /* Retry, chip was in standby */
-		usleep_range(6000, 10000);
-		r = i2c_master_send(client, buf, len);
-		dev_dbg(&client->dev, "send2: %d\n", r);
-	}
-
-	if (r != len)
-		return -EREMOTEIO;
-
-	return r;
-}
-
-static int pn544_i2c_read(struct i2c_client *client, u8 *buf, int buflen)
-{
-	int r;
-	u8 len;
-
-	/*
-	 * You could read a packet in one go, but then you'd need to read
-	 * max size and rest would be 0xff fill, so we do split reads.
-	 */
-	r = i2c_master_recv(client, &len, 1);
-	dev_dbg(&client->dev, "recv1: %d\n", r);
-
-	if (r != 1)
-		return -EREMOTEIO;
-
-	if (len < PN544_LLC_HCI_OVERHEAD)
-		len = PN544_LLC_HCI_OVERHEAD;
-	else if (len > (PN544_MSG_MAX_SIZE - 1))
-		len = PN544_MSG_MAX_SIZE - 1;
-
-	if (1 + len > buflen) /* len+(data+crc16) */
-		return -EMSGSIZE;
-
-	buf[0] = len;
-
-	r = i2c_master_recv(client, buf + 1, len);
-	dev_dbg(&client->dev, "recv2: %d\n", r);
-
-	if (r != len)
-		return -EREMOTEIO;
-
-	usleep_range(3000, 6000);
-
-	return r + 1;
-}
-
-static int pn544_fw_write(struct i2c_client *client, u8 *buf, int len)
-{
-	int r;
-
-	dev_dbg(&client->dev, "%s\n", __func__);
-
-	if (len < PN544_FW_HEADER_SIZE ||
-	    (PN544_FW_HEADER_SIZE + (buf[1] << 8) + buf[2]) != len)
-		return -EINVAL;
-
-	r = i2c_master_send(client, buf, len);
-	dev_dbg(&client->dev, "fw send: %d\n", r);
-
-	if (r == -EREMOTEIO) { /* Retry, chip was in standby */
-		usleep_range(6000, 10000);
-		r = i2c_master_send(client, buf, len);
-		dev_dbg(&client->dev, "fw send2: %d\n", r);
-	}
-
-	if (r != len)
-		return -EREMOTEIO;
-
-	return r;
-}
-
-static int pn544_fw_read(struct i2c_client *client, u8 *buf, int buflen)
-{
-	int r, len;
-
-	if (buflen < PN544_FW_HEADER_SIZE)
-		return -EINVAL;
-
-	r = i2c_master_recv(client, buf, PN544_FW_HEADER_SIZE);
-	dev_dbg(&client->dev, "FW recv1: %d\n", r);
-
-	if (r < 0)
-		return r;
-
-	if (r < PN544_FW_HEADER_SIZE)
-		return -EINVAL;
-
-	len = (buf[1] << 8) + buf[2];
-	if (len == 0) /* just header, no additional data */
-		return r;
-
-	if (len > buflen - PN544_FW_HEADER_SIZE)
-		return -EMSGSIZE;
-
-	r = i2c_master_recv(client, buf + PN544_FW_HEADER_SIZE, len);
-	dev_dbg(&client->dev, "fw recv2: %d\n", r);
-
-	if (r != len)
-		return -EINVAL;
-
-	return r + PN544_FW_HEADER_SIZE;
-}
-
-static irqreturn_t pn544_irq_thread_fn(int irq, void *dev_id)
-{
-	struct pn544_info *info = dev_id;
-	struct i2c_client *client = info->i2c_dev;
-
-	BUG_ON(!info);
-	BUG_ON(irq != info->i2c_dev->irq);
-
-	dev_dbg(&client->dev, "IRQ\n");
-
-	mutex_lock(&info->read_mutex);
-	info->read_irq = PN544_INT;
-	mutex_unlock(&info->read_mutex);
-
-	wake_up_interruptible(&info->read_wait);
-
-	return IRQ_HANDLED;
-}
-
-static enum pn544_irq pn544_irq_state(struct pn544_info *info)
-{
-	enum pn544_irq irq;
-
-	mutex_lock(&info->read_mutex);
-	irq = info->read_irq;
-	mutex_unlock(&info->read_mutex);
-	/*
-	 * XXX: should we check GPIO-line status directly?
-	 * return pdata->irq_status() ? PN544_INT : PN544_NONE;
-	 */
-
-	return irq;
-}
-
-static ssize_t pn544_read(struct file *file, char __user *buf,
-			  size_t count, loff_t *offset)
-{
-	struct pn544_info *info = container_of(file->private_data,
-					       struct pn544_info, miscdev);
-	struct i2c_client *client = info->i2c_dev;
-	enum pn544_irq irq;
-	size_t len;
-	int r = 0;
-
-	dev_dbg(&client->dev, "%s: info: %p, count: %zu\n", __func__,
-		info, count);
-
-	mutex_lock(&info->mutex);
-
-	if (info->state == PN544_ST_COLD) {
-		r = -ENODEV;
-		goto out;
-	}
-
-	irq = pn544_irq_state(info);
-	if (irq == PN544_NONE) {
-		if (file->f_flags & O_NONBLOCK) {
-			r = -EAGAIN;
-			goto out;
-		}
-
-		if (wait_event_interruptible(info->read_wait,
-					     (info->read_irq == PN544_INT))) {
-			r = -ERESTARTSYS;
-			goto out;
-		}
-	}
-
-	if (info->state == PN544_ST_FW_READY) {
-		len = min(count, info->buflen);
-
-		mutex_lock(&info->read_mutex);
-		r = pn544_fw_read(info->i2c_dev, info->buf, len);
-		info->read_irq = PN544_NONE;
-		mutex_unlock(&info->read_mutex);
-
-		if (r < 0) {
-			dev_err(&info->i2c_dev->dev, "FW read failed: %d\n", r);
-			goto out;
-		}
-
-		print_hex_dump(KERN_DEBUG, "FW read: ", DUMP_PREFIX_NONE,
-			       16, 2, info->buf, r, false);
-
-		*offset += r;
-		if (copy_to_user(buf, info->buf, r)) {
-			r = -EFAULT;
-			goto out;
-		}
-	} else {
-		len = min(count, info->buflen);
-
-		mutex_lock(&info->read_mutex);
-		r = pn544_i2c_read(info->i2c_dev, info->buf, len);
-		info->read_irq = PN544_NONE;
-		mutex_unlock(&info->read_mutex);
-
-		if (r < 0) {
-			dev_err(&info->i2c_dev->dev, "read failed (%d)\n", r);
-			goto out;
-		}
-		print_hex_dump(KERN_DEBUG, "read: ", DUMP_PREFIX_NONE,
-			       16, 2, info->buf, r, false);
-
-		*offset += r;
-		if (copy_to_user(buf, info->buf, r)) {
-			r = -EFAULT;
-			goto out;
-		}
-	}
-
-out:
-	mutex_unlock(&info->mutex);
-
-	return r;
-}
-
-static unsigned int pn544_poll(struct file *file, poll_table *wait)
-{
-	struct pn544_info *info = container_of(file->private_data,
-					       struct pn544_info, miscdev);
-	struct i2c_client *client = info->i2c_dev;
-	int r = 0;
-
-	dev_dbg(&client->dev, "%s: info: %p\n", __func__, info);
-
-	mutex_lock(&info->mutex);
-
-	if (info->state == PN544_ST_COLD) {
-		r = -ENODEV;
-		goto out;
-	}
-
-	poll_wait(file, &info->read_wait, wait);
-
-	if (pn544_irq_state(info) == PN544_INT) {
-		r = POLLIN | POLLRDNORM;
-		goto out;
-	}
-out:
-	mutex_unlock(&info->mutex);
-
-	return r;
-}
-
-static ssize_t pn544_write(struct file *file, const char __user *buf,
-			   size_t count, loff_t *ppos)
-{
-	struct pn544_info *info = container_of(file->private_data,
-					       struct pn544_info, miscdev);
-	struct i2c_client *client = info->i2c_dev;
-	ssize_t	len;
-	int r;
-
-	dev_dbg(&client->dev, "%s: info: %p, count %zu\n", __func__,
-		info, count);
-
-	mutex_lock(&info->mutex);
-
-	if (info->state == PN544_ST_COLD) {
-		r = -ENODEV;
-		goto out;
-	}
-
-	/*
-	 * XXX: should we detect rset-writes and clean possible
-	 * read_irq state
-	 */
-	if (info->state == PN544_ST_FW_READY) {
-		size_t fw_len;
-
-		if (count < PN544_FW_HEADER_SIZE) {
-			r = -EINVAL;
-			goto out;
-		}
-
-		len = min(count, info->buflen);
-		if (copy_from_user(info->buf, buf, len)) {
-			r = -EFAULT;
-			goto out;
-		}
-
-		print_hex_dump(KERN_DEBUG, "FW write: ", DUMP_PREFIX_NONE,
-			       16, 2, info->buf, len, false);
-
-		fw_len = PN544_FW_HEADER_SIZE + (info->buf[1] << 8) +
-			info->buf[2];
-
-		if (len > fw_len) /* 1 msg at a time */
-			len = fw_len;
-
-		r = pn544_fw_write(info->i2c_dev, info->buf, len);
-	} else {
-		if (count < PN544_LLC_MIN_SIZE) {
-			r = -EINVAL;
-			goto out;
-		}
-
-		len = min(count, info->buflen);
-		if (copy_from_user(info->buf, buf, len)) {
-			r = -EFAULT;
-			goto out;
-		}
-
-		print_hex_dump(KERN_DEBUG, "write: ", DUMP_PREFIX_NONE,
-			       16, 2, info->buf, len, false);
-
-		if (len > (info->buf[0] + 1)) /* 1 msg at a time */
-			len  = info->buf[0] + 1;
-
-		r = pn544_i2c_write(info->i2c_dev, info->buf, len);
-	}
-out:
-	mutex_unlock(&info->mutex);
-
-	return r;
-
-}
-
-static long pn544_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct pn544_info *info = container_of(file->private_data,
-					       struct pn544_info, miscdev);
-	struct i2c_client *client = info->i2c_dev;
-	struct pn544_nfc_platform_data *pdata;
-	unsigned int val;
-	int r = 0;
-
-	dev_dbg(&client->dev, "%s: info: %p, cmd: 0x%x\n", __func__, info, cmd);
-
-	mutex_lock(&info->mutex);
-
-	if (info->state == PN544_ST_COLD) {
-		r = -ENODEV;
-		goto out;
-	}
-
-	pdata = info->i2c_dev->dev.platform_data;
-	switch (cmd) {
-	case PN544_GET_FW_MODE:
-		dev_dbg(&client->dev, "%s:  PN544_GET_FW_MODE\n", __func__);
-
-		val = (info->state == PN544_ST_FW_READY);
-		if (copy_to_user((void __user *)arg, &val, sizeof(val))) {
-			r = -EFAULT;
-			goto out;
-		}
-
-		break;
-
-	case PN544_SET_FW_MODE:
-		dev_dbg(&client->dev, "%s:  PN544_SET_FW_MODE\n", __func__);
-
-		if (copy_from_user(&val, (void __user *)arg, sizeof(val))) {
-			r = -EFAULT;
-			goto out;
-		}
-
-		if (val) {
-			if (info->state == PN544_ST_FW_READY)
-				break;
-
-			pn544_disable(info);
-			r = pn544_enable(info, FW_MODE);
-			if (r < 0)
-				goto out;
-		} else {
-			if (info->state == PN544_ST_READY)
-				break;
-			pn544_disable(info);
-			r = pn544_enable(info, HCI_MODE);
-			if (r < 0)
-				goto out;
-		}
-		file->f_pos = info->read_offset;
-		break;
-
-	case TCGETS:
-		dev_dbg(&client->dev, "%s:  TCGETS\n", __func__);
-
-		r = -ENOIOCTLCMD;
-		break;
-
-	default:
-		dev_err(&client->dev, "Unknown ioctl 0x%x\n", cmd);
-		r = -ENOIOCTLCMD;
-		break;
-	}
-
-out:
-	mutex_unlock(&info->mutex);
-
-	return r;
-}
-
-static int pn544_open(struct inode *inode, struct file *file)
-{
-	struct pn544_info *info = container_of(file->private_data,
-					       struct pn544_info, miscdev);
-	struct i2c_client *client = info->i2c_dev;
-	int r = 0;
-
-	dev_dbg(&client->dev, "%s: info: %p, client %p\n", __func__,
-		info, info->i2c_dev);
-
-	mutex_lock(&info->mutex);
-
-	/*
-	 * Only 1 at a time.
-	 * XXX: maybe user (counter) would work better
-	 */
-	if (info->state != PN544_ST_COLD) {
-		r = -EBUSY;
-		goto out;
-	}
-
-	file->f_pos = info->read_offset;
-	r = pn544_enable(info, HCI_MODE);
-
-out:
-	mutex_unlock(&info->mutex);
-	return r;
-}
-
-static int pn544_close(struct inode *inode, struct file *file)
-{
-	struct pn544_info *info = container_of(file->private_data,
-					       struct pn544_info, miscdev);
-	struct i2c_client *client = info->i2c_dev;
-
-	dev_dbg(&client->dev, "%s: info: %p, client %p\n",
-		__func__, info, info->i2c_dev);
-
-	mutex_lock(&info->mutex);
-	pn544_disable(info);
-	mutex_unlock(&info->mutex);
-
-	return 0;
-}
-
-static const struct file_operations pn544_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
-	.read		= pn544_read,
-	.write		= pn544_write,
-	.poll		= pn544_poll,
-	.open		= pn544_open,
-	.release	= pn544_close,
-	.unlocked_ioctl	= pn544_ioctl,
-};
-
-#ifdef CONFIG_PM
-static int pn544_suspend(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct pn544_info *info;
-	int r = 0;
-
-	dev_info(&client->dev, "***\n%s: client %p\n***\n", __func__, client);
-
-	info = i2c_get_clientdata(client);
-	dev_info(&client->dev, "%s: info: %p, client %p\n", __func__,
-		 info, client);
-
-	mutex_lock(&info->mutex);
-
-	switch (info->state) {
-	case PN544_ST_FW_READY:
-		/* Do not suspend while upgrading FW, please! */
-		r = -EPERM;
-		break;
-
-	case PN544_ST_READY:
-		/*
-		 * CHECK: Device should be in standby-mode. No way to check?
-		 * Allowing low power mode for the regulator is potentially
-		 * dangerous if pn544 does not go to suspension.
-		 */
-		break;
-
-	case PN544_ST_COLD:
-		break;
-	};
-
-	mutex_unlock(&info->mutex);
-	return r;
-}
-
-static int pn544_resume(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct pn544_info *info = i2c_get_clientdata(client);
-	int r = 0;
-
-	dev_dbg(&client->dev, "%s: info: %p, client %p\n", __func__,
-		info, client);
-
-	mutex_lock(&info->mutex);
-
-	switch (info->state) {
-	case PN544_ST_READY:
-		/*
-		 * CHECK: If regulator low power mode is allowed in
-		 * pn544_suspend, we should go back to normal mode
-		 * here.
-		 */
-		break;
-
-	case PN544_ST_COLD:
-		break;
-
-	case PN544_ST_FW_READY:
-		break;
-	};
-
-	mutex_unlock(&info->mutex);
-
-	return r;
-}
-
-static SIMPLE_DEV_PM_OPS(pn544_pm_ops, pn544_suspend, pn544_resume);
-#endif
-
-static struct device_attribute pn544_attr =
-	__ATTR(nfc_test, S_IRUGO, pn544_test, NULL);
-
-static int __devinit pn544_probe(struct i2c_client *client,
-				 const struct i2c_device_id *id)
-{
-	struct pn544_info *info;
-	struct pn544_nfc_platform_data *pdata;
-	int r = 0;
-
-	dev_dbg(&client->dev, "%s\n", __func__);
-	dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
-
-	/* private data allocation */
-	info = kzalloc(sizeof(struct pn544_info), GFP_KERNEL);
-	if (!info) {
-		dev_err(&client->dev,
-			"Cannot allocate memory for pn544_info.\n");
-		r = -ENOMEM;
-		goto err_info_alloc;
-	}
-
-	info->buflen = max(PN544_MSG_MAX_SIZE, PN544_MAX_I2C_TRANSFER);
-	info->buf = kzalloc(info->buflen, GFP_KERNEL);
-	if (!info->buf) {
-		dev_err(&client->dev,
-			"Cannot allocate memory for pn544_info->buf.\n");
-		r = -ENOMEM;
-		goto err_buf_alloc;
-	}
-
-	info->regs[0].supply = reg_vdd_io;
-	info->regs[1].supply = reg_vbat;
-	info->regs[2].supply = reg_vsim;
-	r = regulator_bulk_get(&client->dev, ARRAY_SIZE(info->regs),
-				 info->regs);
-	if (r < 0)
-		goto err_kmalloc;
-
-	info->i2c_dev = client;
-	info->state = PN544_ST_COLD;
-	info->read_irq = PN544_NONE;
-	mutex_init(&info->read_mutex);
-	mutex_init(&info->mutex);
-	init_waitqueue_head(&info->read_wait);
-	i2c_set_clientdata(client, info);
-	pdata = client->dev.platform_data;
-	if (!pdata) {
-		dev_err(&client->dev, "No platform data\n");
-		r = -EINVAL;
-		goto err_reg;
-	}
-
-	if (!pdata->request_resources) {
-		dev_err(&client->dev, "request_resources() missing\n");
-		r = -EINVAL;
-		goto err_reg;
-	}
-
-	r = pdata->request_resources(client);
-	if (r) {
-		dev_err(&client->dev, "Cannot get platform resources\n");
-		goto err_reg;
-	}
-
-	r = request_threaded_irq(client->irq, NULL, pn544_irq_thread_fn,
-				 IRQF_TRIGGER_RISING, PN544_DRIVER_NAME,
-				 info);
-	if (r < 0) {
-		dev_err(&client->dev, "Unable to register IRQ handler\n");
-		goto err_res;
-	}
-
-	/* If we don't have the test we don't need the sysfs file */
-	if (pdata->test) {
-		r = device_create_file(&client->dev, &pn544_attr);
-		if (r) {
-			dev_err(&client->dev,
-				"sysfs registration failed, error %d\n", r);
-			goto err_irq;
-		}
-	}
-
-	info->miscdev.minor = MISC_DYNAMIC_MINOR;
-	info->miscdev.name = PN544_DRIVER_NAME;
-	info->miscdev.fops = &pn544_fops;
-	info->miscdev.parent = &client->dev;
-	r = misc_register(&info->miscdev);
-	if (r < 0) {
-		dev_err(&client->dev, "Device registration failed\n");
-		goto err_sysfs;
-	}
-
-	dev_dbg(&client->dev, "%s: info: %p, pdata %p, client %p\n",
-		__func__, info, pdata, client);
-
-	return 0;
-
-err_sysfs:
-	if (pdata->test)
-		device_remove_file(&client->dev, &pn544_attr);
-err_irq:
-	free_irq(client->irq, info);
-err_res:
-	if (pdata->free_resources)
-		pdata->free_resources();
-err_reg:
-	regulator_bulk_free(ARRAY_SIZE(info->regs), info->regs);
-err_kmalloc:
-	kfree(info->buf);
-err_buf_alloc:
-	kfree(info);
-err_info_alloc:
-	return r;
-}
-
-static __devexit int pn544_remove(struct i2c_client *client)
-{
-	struct pn544_info *info = i2c_get_clientdata(client);
-	struct pn544_nfc_platform_data *pdata = client->dev.platform_data;
-
-	dev_dbg(&client->dev, "%s\n", __func__);
-
-	misc_deregister(&info->miscdev);
-	if (pdata->test)
-		device_remove_file(&client->dev, &pn544_attr);
-
-	if (info->state != PN544_ST_COLD) {
-		if (pdata->disable)
-			pdata->disable();
-
-		info->read_irq = PN544_NONE;
-	}
-
-	free_irq(client->irq, info);
-	if (pdata->free_resources)
-		pdata->free_resources();
-
-	regulator_bulk_free(ARRAY_SIZE(info->regs), info->regs);
-	kfree(info->buf);
-	kfree(info);
-
-	return 0;
-}
-
-static struct i2c_driver pn544_driver = {
-	.driver = {
-		.name = PN544_DRIVER_NAME,
-#ifdef CONFIG_PM
-		.pm = &pn544_pm_ops,
-#endif
-	},
-	.probe = pn544_probe,
-	.id_table = pn544_id_table,
-	.remove = __devexit_p(pn544_remove),
-};
-
-static int __init pn544_init(void)
-{
-	int r;
-
-	pr_debug(DRIVER_DESC ": %s\n", __func__);
-
-	r = i2c_add_driver(&pn544_driver);
-	if (r) {
-		pr_err(PN544_DRIVER_NAME ": driver registration failed\n");
-		return r;
-	}
-
-	return 0;
-}
-
-static void __exit pn544_exit(void)
-{
-	i2c_del_driver(&pn544_driver);
-	pr_info(DRIVER_DESC ", Exiting.\n");
-}
-
-module_init(pn544_init);
-module_exit(pn544_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/nfc/pn544_hci.c b/drivers/nfc/pn544_hci.c
index aa71807189b..c9c8570273a 100644
--- a/drivers/nfc/pn544_hci.c
+++ b/drivers/nfc/pn544_hci.c
@@ -29,7 +29,7 @@
 
 #include <linux/nfc.h>
 #include <net/nfc/hci.h>
-#include <net/nfc/shdlc.h>
+#include <net/nfc/llc.h>
 
 #include <linux/nfc/pn544.h>
 
@@ -128,10 +128,12 @@ static struct nfc_hci_gate pn544_gates[] = {
 
 /* Largest headroom needed for outgoing custom commands */
 #define PN544_CMDS_HEADROOM	2
+#define PN544_FRAME_HEADROOM 1
+#define PN544_FRAME_TAILROOM 2
 
 struct pn544_hci_info {
 	struct i2c_client *i2c_dev;
-	struct nfc_shdlc *shdlc;
+	struct nfc_hci_dev *hdev;
 
 	enum pn544_state state;
 
@@ -146,6 +148,9 @@ struct pn544_hci_info {
 				 * < 0 if hardware error occured (e.g. i2c err)
 				 * and prevents normal operation.
 				 */
+	int async_cb_type;
+	data_exchange_cb_t async_cb;
+	void *async_cb_context;
 };
 
 static void pn544_hci_platform_init(struct pn544_hci_info *info)
@@ -230,8 +235,12 @@ static int pn544_hci_i2c_write(struct i2c_client *client, u8 *buf, int len)
 		r = i2c_master_send(client, buf, len);
 	}
 
-	if (r >= 0 && r != len)
-		r = -EREMOTEIO;
+	if (r >= 0) {
+		if (r != len)
+			return -EREMOTEIO;
+		else
+			return 0;
+	}
 
 	return r;
 }
@@ -341,13 +350,16 @@ flush:
 static irqreturn_t pn544_hci_irq_thread_fn(int irq, void *dev_id)
 {
 	struct pn544_hci_info *info = dev_id;
-	struct i2c_client *client = info->i2c_dev;
+	struct i2c_client *client;
 	struct sk_buff *skb = NULL;
 	int r;
 
-	BUG_ON(!info);
-	BUG_ON(irq != info->i2c_dev->irq);
+	if (!info || irq != info->i2c_dev->irq) {
+		WARN_ON_ONCE(1);
+		return IRQ_NONE;
+	}
 
+	client = info->i2c_dev;
 	dev_dbg(&client->dev, "IRQ\n");
 
 	if (info->hard_fault != 0)
@@ -357,21 +369,21 @@ static irqreturn_t pn544_hci_irq_thread_fn(int irq, void *dev_id)
 	if (r == -EREMOTEIO) {
 		info->hard_fault = r;
 
-		nfc_shdlc_recv_frame(info->shdlc, NULL);
+		nfc_hci_recv_frame(info->hdev, NULL);
 
 		return IRQ_HANDLED;
 	} else if ((r == -ENOMEM) || (r == -EBADMSG)) {
 		return IRQ_HANDLED;
 	}
 
-	nfc_shdlc_recv_frame(info->shdlc, skb);
+	nfc_hci_recv_frame(info->hdev, skb);
 
 	return IRQ_HANDLED;
 }
 
-static int pn544_hci_open(struct nfc_shdlc *shdlc)
+static int pn544_hci_open(struct nfc_hci_dev *hdev)
 {
-	struct pn544_hci_info *info = nfc_shdlc_get_clientdata(shdlc);
+	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
 	int r = 0;
 
 	mutex_lock(&info->info_lock);
@@ -391,9 +403,9 @@ out:
 	return r;
 }
 
-static void pn544_hci_close(struct nfc_shdlc *shdlc)
+static void pn544_hci_close(struct nfc_hci_dev *hdev)
 {
-	struct pn544_hci_info *info = nfc_shdlc_get_clientdata(shdlc);
+	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
 
 	mutex_lock(&info->info_lock);
 
@@ -408,9 +420,8 @@ out:
 	mutex_unlock(&info->info_lock);
 }
 
-static int pn544_hci_ready(struct nfc_shdlc *shdlc)
+static int pn544_hci_ready(struct nfc_hci_dev *hdev)
 {
-	struct nfc_hci_dev *hdev = nfc_shdlc_get_hci_dev(shdlc);
 	struct sk_buff *skb;
 	static struct hw_config {
 		u8 adr[2];
@@ -576,21 +587,45 @@ static int pn544_hci_ready(struct nfc_shdlc *shdlc)
 	return 0;
 }
 
-static int pn544_hci_xmit(struct nfc_shdlc *shdlc, struct sk_buff *skb)
+static void pn544_hci_add_len_crc(struct sk_buff *skb)
 {
-	struct pn544_hci_info *info = nfc_shdlc_get_clientdata(shdlc);
+	u16 crc;
+	int len;
+
+	len = skb->len + 2;
+	*skb_push(skb, 1) = len;
+
+	crc = crc_ccitt(0xffff, skb->data, skb->len);
+	crc = ~crc;
+	*skb_put(skb, 1) = crc & 0xff;
+	*skb_put(skb, 1) = crc >> 8;
+}
+
+static void pn544_hci_remove_len_crc(struct sk_buff *skb)
+{
+	skb_pull(skb, PN544_FRAME_HEADROOM);
+	skb_trim(skb, PN544_FRAME_TAILROOM);
+}
+
+static int pn544_hci_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb)
+{
+	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
 	struct i2c_client *client = info->i2c_dev;
+	int r;
 
 	if (info->hard_fault != 0)
 		return info->hard_fault;
 
-	return pn544_hci_i2c_write(client, skb->data, skb->len);
+	pn544_hci_add_len_crc(skb);
+	r = pn544_hci_i2c_write(client, skb->data, skb->len);
+	pn544_hci_remove_len_crc(skb);
+
+	return r;
 }
 
-static int pn544_hci_start_poll(struct nfc_shdlc *shdlc,
+static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
 				u32 im_protocols, u32 tm_protocols)
 {
-	struct nfc_hci_dev *hdev = nfc_shdlc_get_hci_dev(shdlc);
 	u8 phases = 0;
 	int r;
 	u8 duration[2];
@@ -641,7 +676,7 @@ static int pn544_hci_start_poll(struct nfc_shdlc *shdlc,
 	return r;
 }
 
-static int pn544_hci_target_from_gate(struct nfc_shdlc *shdlc, u8 gate,
+static int pn544_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
 				      struct nfc_target *target)
 {
 	switch (gate) {
@@ -659,11 +694,10 @@ static int pn544_hci_target_from_gate(struct nfc_shdlc *shdlc, u8 gate,
 	return 0;
 }
 
-static int pn544_hci_complete_target_discovered(struct nfc_shdlc *shdlc,
+static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
 						u8 gate,
 						struct nfc_target *target)
 {
-	struct nfc_hci_dev *hdev = nfc_shdlc_get_hci_dev(shdlc);
 	struct sk_buff *uid_skb;
 	int r = 0;
 
@@ -704,6 +738,26 @@ static int pn544_hci_complete_target_discovered(struct nfc_shdlc *shdlc,
 	return r;
 }
 
+#define PN544_CB_TYPE_READER_F 1
+
+static void pn544_hci_data_exchange_cb(void *context, struct sk_buff *skb,
+				       int err)
+{
+	struct pn544_hci_info *info = context;
+
+	switch (info->async_cb_type) {
+	case PN544_CB_TYPE_READER_F:
+		if (err == 0)
+			skb_pull(skb, 1);
+		info->async_cb(info->async_cb_context, skb, err);
+		break;
+	default:
+		if (err == 0)
+			kfree_skb(skb);
+		break;
+	}
+}
+
 #define MIFARE_CMD_AUTH_KEY_A	0x60
 #define MIFARE_CMD_AUTH_KEY_B	0x61
 #define MIFARE_CMD_HEADER	2
@@ -715,13 +769,12 @@ static int pn544_hci_complete_target_discovered(struct nfc_shdlc *shdlc,
  * <= 0: driver handled the data exchange
  *    1: driver doesn't especially handle, please do standard processing
  */
-static int pn544_hci_data_exchange(struct nfc_shdlc *shdlc,
+static int pn544_hci_data_exchange(struct nfc_hci_dev *hdev,
 				   struct nfc_target *target,
-				   struct sk_buff *skb,
-				   struct sk_buff **res_skb)
+				   struct sk_buff *skb, data_exchange_cb_t cb,
+				   void *cb_context)
 {
-	struct nfc_hci_dev *hdev = nfc_shdlc_get_hci_dev(shdlc);
-	int r;
+	struct pn544_hci_info *info = nfc_hci_get_clientdata(hdev);
 
 	pr_info(DRIVER_DESC ": %s for gate=%d\n", __func__,
 		target->hci_reader_gate);
@@ -746,41 +799,43 @@ static int pn544_hci_data_exchange(struct nfc_shdlc *shdlc,
 				memcpy(data, uid, MIFARE_UID_LEN);
 			}
 
-			return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
-						PN544_MIFARE_CMD,
-						skb->data, skb->len, res_skb);
+			return nfc_hci_send_cmd_async(hdev,
+						      target->hci_reader_gate,
+						      PN544_MIFARE_CMD,
+						      skb->data, skb->len,
+						      cb, cb_context);
 		} else
 			return 1;
 	case PN544_RF_READER_F_GATE:
 		*skb_push(skb, 1) = 0;
 		*skb_push(skb, 1) = 0;
 
-		r = nfc_hci_send_cmd(hdev, target->hci_reader_gate,
-				     PN544_FELICA_RAW,
-				     skb->data, skb->len, res_skb);
-		if (r == 0)
-			skb_pull(*res_skb, 1);
-		return r;
+		info->async_cb_type = PN544_CB_TYPE_READER_F;
+		info->async_cb = cb;
+		info->async_cb_context = cb_context;
+
+		return nfc_hci_send_cmd_async(hdev, target->hci_reader_gate,
+					      PN544_FELICA_RAW, skb->data,
+					      skb->len,
+					      pn544_hci_data_exchange_cb, info);
 	case PN544_RF_READER_JEWEL_GATE:
-		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
-					PN544_JEWEL_RAW_CMD,
-					skb->data, skb->len, res_skb);
+		return nfc_hci_send_cmd_async(hdev, target->hci_reader_gate,
+					      PN544_JEWEL_RAW_CMD, skb->data,
+					      skb->len, cb, cb_context);
 	default:
 		return 1;
 	}
 }
 
-static int pn544_hci_check_presence(struct nfc_shdlc *shdlc,
+static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
 				   struct nfc_target *target)
 {
-	struct nfc_hci_dev *hdev = nfc_shdlc_get_hci_dev(shdlc);
-
 	return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
 				PN544_RF_READER_CMD_PRESENCE_CHECK,
 				NULL, 0, NULL);
 }
 
-static struct nfc_shdlc_ops pn544_shdlc_ops = {
+static struct nfc_hci_ops pn544_hci_ops = {
 	.open = pn544_hci_open,
 	.close = pn544_hci_close,
 	.hci_ready = pn544_hci_ready,
@@ -848,8 +903,8 @@ static int __devinit pn544_hci_probe(struct i2c_client *client,
 	pn544_hci_platform_init(info);
 
 	r = request_threaded_irq(client->irq, NULL, pn544_hci_irq_thread_fn,
-				 IRQF_TRIGGER_RISING, PN544_HCI_DRIVER_NAME,
-				 info);
+				 IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				 PN544_HCI_DRIVER_NAME, info);
 	if (r < 0) {
 		dev_err(&client->dev, "Unable to register IRQ handler\n");
 		goto err_rti;
@@ -872,22 +927,30 @@ static int __devinit pn544_hci_probe(struct i2c_client *client,
 		    NFC_PROTO_ISO14443_B_MASK |
 		    NFC_PROTO_NFC_DEP_MASK;
 
-	info->shdlc = nfc_shdlc_allocate(&pn544_shdlc_ops,
-					 &init_data, protocols,
-					 PN544_CMDS_HEADROOM, 0,
-					 PN544_HCI_LLC_MAX_PAYLOAD,
-					 dev_name(&client->dev));
-	if (!info->shdlc) {
-		dev_err(&client->dev, "Cannot allocate nfc shdlc.\n");
+	info->hdev = nfc_hci_allocate_device(&pn544_hci_ops, &init_data,
+					     protocols, LLC_SHDLC_NAME,
+					     PN544_FRAME_HEADROOM +
+					     PN544_CMDS_HEADROOM,
+					     PN544_FRAME_TAILROOM,
+					     PN544_HCI_LLC_MAX_PAYLOAD);
+	if (!info->hdev) {
+		dev_err(&client->dev, "Cannot allocate nfc hdev.\n");
 		r = -ENOMEM;
-		goto err_allocshdlc;
+		goto err_alloc_hdev;
 	}
 
-	nfc_shdlc_set_clientdata(info->shdlc, info);
+	nfc_hci_set_clientdata(info->hdev, info);
+
+	r = nfc_hci_register_device(info->hdev);
+	if (r)
+		goto err_regdev;
 
 	return 0;
 
-err_allocshdlc:
+err_regdev:
+	nfc_hci_free_device(info->hdev);
+
+err_alloc_hdev:
 	free_irq(client->irq, info);
 
 err_rti:
@@ -908,7 +971,7 @@ static __devexit int pn544_hci_remove(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "%s\n", __func__);
 
-	nfc_shdlc_free(info->shdlc);
+	nfc_hci_free_device(info->hdev);
 
 	if (info->state != PN544_ST_COLD) {
 		if (pdata->disable)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index e2e813624df..af3b22ac762 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -364,6 +364,33 @@ struct device_node *of_get_next_child(const struct device_node *node,
 EXPORT_SYMBOL(of_get_next_child);
 
 /**
+ *	of_get_next_available_child - Find the next available child node
+ *	@node:	parent node
+ *	@prev:	previous child of the parent node, or NULL to get first
+ *
+ *      This function is like of_get_next_child(), except that it
+ *      automatically skips any disabled nodes (i.e. status = "disabled").
+ */
+struct device_node *of_get_next_available_child(const struct device_node *node,
+	struct device_node *prev)
+{
+	struct device_node *next;
+
+	read_lock(&devtree_lock);
+	next = prev ? prev->sibling : node->child;
+	for (; next; next = next->sibling) {
+		if (!of_device_is_available(next))
+			continue;
+		if (of_node_get(next))
+			break;
+	}
+	of_node_put(prev);
+	read_unlock(&devtree_lock);
+	return next;
+}
+EXPORT_SYMBOL(of_get_next_available_child);
+
+/**
  *	of_get_child_by_name - Find the child node by name for a given parent
  *	@node:	parent node
  *	@name:	child name to look for.
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index b8ef8ddcc29..8aa73fac6ad 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -451,14 +451,9 @@ static void wq_sync_buffer(struct work_struct *work)
 {
 	struct oprofile_cpu_buffer *b =
 		container_of(work, struct oprofile_cpu_buffer, work.work);
-	if (b->cpu != smp_processor_id()) {
-		printk(KERN_DEBUG "WQ on CPU%d, prefer CPU%d\n",
-		       smp_processor_id(), b->cpu);
-
-		if (!cpu_online(b->cpu)) {
-			cancel_delayed_work(&b->work);
-			return;
-		}
+	if (b->cpu != smp_processor_id() && !cpu_online(b->cpu)) {
+		cancel_delayed_work(&b->work);
+		return;
 	}
 	sync_buffer(b->cpu);
 
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index ffddc4f6426..fb6a1fe21b9 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -477,14 +477,12 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				F_EXTEND(0xf0000000UL) | _8MB,
 				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB) < 0) {
-		struct list_head *ln, *tmp_ln;
+		struct pci_dev *dev, *tmp;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
 		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
-		list_for_each_safe(ln, tmp_ln, &bus->devices) {
-			struct pci_dev *dev = pci_dev_b(ln);
-
+		list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 			list_del(&dev->bus_list);
 		}
 			
@@ -549,7 +547,6 @@ dino_card_fixup(struct pci_dev *dev)
 static void __init
 dino_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
 
@@ -596,8 +593,7 @@ dino_fixup_bus(struct pci_bus *bus)
 	}
 
 
-	list_for_each(ln, &bus->devices) {
-		dev = pci_dev_b(ln);
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		if (is_card_dino(&dino_dev->hba.dev->id))
 			dino_card_fixup(dev);
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 4f9cf2456f4..fdd63a6a62d 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -629,7 +629,7 @@ truncate_pat_collision(struct resource *root, struct resource *new)
 static void
 lba_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
+	struct pci_dev *dev;
 #ifdef FBB_SUPPORT
 	u16 status;
 #endif
@@ -710,9 +710,8 @@ lba_fixup_bus(struct pci_bus *bus)
 
 	}
 
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		int i;
-		struct pci_dev *dev = pci_dev_b(ln);
 
 		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
@@ -770,7 +769,7 @@ lba_fixup_bus(struct pci_bus *bus)
 	}
 
 	/* Lastly enable FBB/PERR/SERR on all devices too */
-	list_for_each(ln, &bus->devices) {
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		(void) pci_read_config_word(dev, PCI_COMMAND, &status);
 		status |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR | fbb_enable;
 		(void) pci_write_config_word(dev, PCI_COMMAND, status);
diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 5d6de380e42..352f96180bc 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -271,6 +271,7 @@ struct parport *__devinit parport_gsc_probe_port (unsigned long base,
 	if (!parport_SPP_supported (p)) {
 		/* No port. */
 		kfree (priv);
+		kfree(ops);
 		return NULL;
 	}
 	parport_PS2_supported (p);
diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index e9c32274df3..1631eeaf440 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -62,6 +62,7 @@ enum parport_pc_pci_cards {
 	timedia_9079a,
 	timedia_9079b,
 	timedia_9079c,
+	wch_ch353_2s1p,
 };
 
 /* each element directly indexed from enum list, above */
@@ -145,6 +146,7 @@ static struct parport_pc_pci cards[] __devinitdata = {
 	/* timedia_9079a */             { 1, { { 2, 3 }, } },
 	/* timedia_9079b */             { 1, { { 2, 3 }, } },
 	/* timedia_9079c */             { 1, { { 2, 3 }, } },
+	/* wch_ch353_2s1p*/             { 1, { { 2, -1}, } },
 };
 
 static struct pci_device_id parport_serial_pci_tbl[] = {
@@ -243,7 +245,8 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
 	{ 0x1409, 0x7168, 0x1409, 0xb079, 0, 0, timedia_9079a },
 	{ 0x1409, 0x7168, 0x1409, 0xc079, 0, 0, timedia_9079b },
 	{ 0x1409, 0x7168, 0x1409, 0xd079, 0, 0, timedia_9079c },
-
+	/* WCH CARDS */
+	{ 0x4348, 0x7053, 0x4348, 0x3253, 0, 0, wch_ch353_2s1p},
 	{ 0, } /* terminate list */
 };
 MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
@@ -460,6 +463,12 @@ static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
 		.base_baud	= 921600,
 		.uart_offset	= 8,
 	},
+	[wch_ch353_2s1p] = {
+		.flags          = FL_BASE0|FL_BASE_BARS,
+		.num_ports      = 2,
+		.base_baud      = 115200,
+		.uart_offset    = 8,
+	},
 };
 
 struct parport_serial_private {
diff --git a/drivers/pci/.gitignore b/drivers/pci/.gitignore
deleted file mode 100644
index f297ca8d313..00000000000
--- a/drivers/pci/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-classlist.h
-devlist.h
-gen-devlist
-
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 848bfb84c04..6d51aa68ec7 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -3,7 +3,6 @@
 #
 config ARCH_SUPPORTS_MSI
 	bool
-	default n
 
 config PCI_MSI
 	bool "Message Signaled Interrupts (MSI and MSI-X)"
diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index ba91a7e1751..3af0478c057 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -469,3 +469,205 @@ void pci_cfg_access_unlock(struct pci_dev *dev)
 	raw_spin_unlock_irqrestore(&pci_lock, flags);
 }
 EXPORT_SYMBOL_GPL(pci_cfg_access_unlock);
+
+static inline int pcie_cap_version(const struct pci_dev *dev)
+{
+	return dev->pcie_flags_reg & PCI_EXP_FLAGS_VERS;
+}
+
+static inline bool pcie_cap_has_devctl(const struct pci_dev *dev)
+{
+	return true;
+}
+
+static inline bool pcie_cap_has_lnkctl(const struct pci_dev *dev)
+{
+	int type = pci_pcie_type(dev);
+
+	return pcie_cap_version(dev) > 1 ||
+	       type == PCI_EXP_TYPE_ROOT_PORT ||
+	       type == PCI_EXP_TYPE_ENDPOINT ||
+	       type == PCI_EXP_TYPE_LEG_END;
+}
+
+static inline bool pcie_cap_has_sltctl(const struct pci_dev *dev)
+{
+	int type = pci_pcie_type(dev);
+
+	return pcie_cap_version(dev) > 1 ||
+	       type == PCI_EXP_TYPE_ROOT_PORT ||
+	       (type == PCI_EXP_TYPE_DOWNSTREAM &&
+		dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT);
+}
+
+static inline bool pcie_cap_has_rtctl(const struct pci_dev *dev)
+{
+	int type = pci_pcie_type(dev);
+
+	return pcie_cap_version(dev) > 1 ||
+	       type == PCI_EXP_TYPE_ROOT_PORT ||
+	       type == PCI_EXP_TYPE_RC_EC;
+}
+
+static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos)
+{
+	if (!pci_is_pcie(dev))
+		return false;
+
+	switch (pos) {
+	case PCI_EXP_FLAGS_TYPE:
+		return true;
+	case PCI_EXP_DEVCAP:
+	case PCI_EXP_DEVCTL:
+	case PCI_EXP_DEVSTA:
+		return pcie_cap_has_devctl(dev);
+	case PCI_EXP_LNKCAP:
+	case PCI_EXP_LNKCTL:
+	case PCI_EXP_LNKSTA:
+		return pcie_cap_has_lnkctl(dev);
+	case PCI_EXP_SLTCAP:
+	case PCI_EXP_SLTCTL:
+	case PCI_EXP_SLTSTA:
+		return pcie_cap_has_sltctl(dev);
+	case PCI_EXP_RTCTL:
+	case PCI_EXP_RTCAP:
+	case PCI_EXP_RTSTA:
+		return pcie_cap_has_rtctl(dev);
+	case PCI_EXP_DEVCAP2:
+	case PCI_EXP_DEVCTL2:
+	case PCI_EXP_LNKCAP2:
+	case PCI_EXP_LNKCTL2:
+	case PCI_EXP_LNKSTA2:
+		return pcie_cap_version(dev) > 1;
+	default:
+		return false;
+	}
+}
+
+/*
+ * Note that these accessor functions are only for the "PCI Express
+ * Capability" (see PCIe spec r3.0, sec 7.8).  They do not apply to the
+ * other "PCI Express Extended Capabilities" (AER, VC, ACS, MFVC, etc.)
+ */
+int pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *val)
+{
+	int ret;
+
+	*val = 0;
+	if (pos & 1)
+		return -EINVAL;
+
+	if (pcie_capability_reg_implemented(dev, pos)) {
+		ret = pci_read_config_word(dev, pci_pcie_cap(dev) + pos, val);
+		/*
+		 * Reset *val to 0 if pci_read_config_word() fails, it may
+		 * have been written as 0xFFFF if hardware error happens
+		 * during pci_read_config_word().
+		 */
+		if (ret)
+			*val = 0;
+		return ret;
+	}
+
+	/*
+	 * For Functions that do not implement the Slot Capabilities,
+	 * Slot Status, and Slot Control registers, these spaces must
+	 * be hardwired to 0b, with the exception of the Presence Detect
+	 * State bit in the Slot Status register of Downstream Ports,
+	 * which must be hardwired to 1b.  (PCIe Base Spec 3.0, sec 7.8)
+	 */
+	if (pci_is_pcie(dev) && pos == PCI_EXP_SLTSTA &&
+		 pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM) {
+		*val = PCI_EXP_SLTSTA_PDS;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(pcie_capability_read_word);
+
+int pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *val)
+{
+	int ret;
+
+	*val = 0;
+	if (pos & 3)
+		return -EINVAL;
+
+	if (pcie_capability_reg_implemented(dev, pos)) {
+		ret = pci_read_config_dword(dev, pci_pcie_cap(dev) + pos, val);
+		/*
+		 * Reset *val to 0 if pci_read_config_dword() fails, it may
+		 * have been written as 0xFFFFFFFF if hardware error happens
+		 * during pci_read_config_dword().
+		 */
+		if (ret)
+			*val = 0;
+		return ret;
+	}
+
+	if (pci_is_pcie(dev) && pos == PCI_EXP_SLTCTL &&
+		 pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM) {
+		*val = PCI_EXP_SLTSTA_PDS;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(pcie_capability_read_dword);
+
+int pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val)
+{
+	if (pos & 1)
+		return -EINVAL;
+
+	if (!pcie_capability_reg_implemented(dev, pos))
+		return 0;
+
+	return pci_write_config_word(dev, pci_pcie_cap(dev) + pos, val);
+}
+EXPORT_SYMBOL(pcie_capability_write_word);
+
+int pcie_capability_write_dword(struct pci_dev *dev, int pos, u32 val)
+{
+	if (pos & 3)
+		return -EINVAL;
+
+	if (!pcie_capability_reg_implemented(dev, pos))
+		return 0;
+
+	return pci_write_config_dword(dev, pci_pcie_cap(dev) + pos, val);
+}
+EXPORT_SYMBOL(pcie_capability_write_dword);
+
+int pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos,
+				       u16 clear, u16 set)
+{
+	int ret;
+	u16 val;
+
+	ret = pcie_capability_read_word(dev, pos, &val);
+	if (!ret) {
+		val &= ~clear;
+		val |= set;
+		ret = pcie_capability_write_word(dev, pos, val);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(pcie_capability_clear_and_set_word);
+
+int pcie_capability_clear_and_set_dword(struct pci_dev *dev, int pos,
+					u32 clear, u32 set)
+{
+	int ret;
+	u32 val;
+
+	ret = pcie_capability_read_dword(dev, pos, &val);
+	if (!ret) {
+		val &= ~clear;
+		val |= set;
+		ret = pcie_capability_write_dword(dev, pos, val);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(pcie_capability_clear_and_set_dword);
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 4b0970b46e0..6241fd05bd4 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -87,11 +87,15 @@ EXPORT_SYMBOL_GPL(pci_bus_resource_n);
 void pci_bus_remove_resources(struct pci_bus *bus)
 {
 	int i;
+	struct pci_bus_resource *bus_res, *tmp;
 
 	for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++)
 		bus->resource[i] = NULL;
 
-	pci_free_resource_list(&bus->resources);
+	list_for_each_entry_safe(bus_res, tmp, &bus->resources, list) {
+		list_del(&bus_res->list);
+		kfree(bus_res);
+	}
 }
 
 /**
diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig
index 66f29bc00be..b0e46dede1a 100644
--- a/drivers/pci/hotplug/Kconfig
+++ b/drivers/pci/hotplug/Kconfig
@@ -17,28 +17,6 @@ menuconfig HOTPLUG_PCI
 
 if HOTPLUG_PCI
 
-config HOTPLUG_PCI_FAKE
-	tristate "Fake PCI Hotplug driver"
-	help
-	  Say Y here if you want to use the fake PCI hotplug driver. It can
-	  be used to simulate PCI hotplug events if even if your system is
-	  not PCI hotplug capable.
-
-	  This driver will "emulate" removing PCI devices from the system.
-	  If the "power" file is written to with "0" then the specified PCI
-	  device will be completely removed from the kernel.
-
-	  WARNING, this does NOT turn off the power to the PCI device.
-	  This is a "logical" removal, not a physical or electrical
-	  removal.
-
-	  Use this module at your own risk.  You have been warned!
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called fakephp.
-
-	  When in doubt, say N.
-
 config HOTPLUG_PCI_COMPAQ
 	tristate "Compaq PCI Hotplug driver"
 	depends on X86 && PCI_BIOS
@@ -143,7 +121,7 @@ config HOTPLUG_PCI_SHPC
 
 config HOTPLUG_PCI_RPA
 	tristate "RPA PCI Hotplug driver"
-	depends on PPC_PSERIES && EEH && !HOTPLUG_PCI_FAKE
+	depends on PPC_PSERIES && EEH
 	help
 	  Say Y here if you have a RPA system that supports PCI Hotplug.
 
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 6cd9f3c9887..c459cd4e39c 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -23,9 +23,6 @@ obj-$(CONFIG_HOTPLUG_PCI_ACPI)		+= acpiphp.o
 
 obj-$(CONFIG_HOTPLUG_PCI_ACPI_IBM)	+= acpiphp_ibm.o
 
-# Link this last so it doesn't claim devices that have a real hotplug driver
-obj-$(CONFIG_HOTPLUG_PCI_FAKE)		+= fakephp.o
-
 pci_hotplug-objs	:=	pci_hotplug_core.o pcihp_slot.o
 
 ifdef CONFIG_HOTPLUG_PCI_CPCI
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index ad6fd669549..3d6d4fd1e3c 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -115,6 +115,35 @@ static const struct acpi_dock_ops acpiphp_dock_ops = {
 	.handler = handle_hotplug_event_func,
 };
 
+/* Check whether the PCI device is managed by native PCIe hotplug driver */
+static bool device_is_managed_by_native_pciehp(struct pci_dev *pdev)
+{
+	u32 reg32;
+	acpi_handle tmp;
+	struct acpi_pci_root *root;
+
+	/* Check whether the PCIe port supports native PCIe hotplug */
+	if (pcie_capability_read_dword(pdev, PCI_EXP_SLTCAP, &reg32))
+		return false;
+	if (!(reg32 & PCI_EXP_SLTCAP_HPC))
+		return false;
+
+	/*
+	 * Check whether native PCIe hotplug has been enabled for
+	 * this PCIe hierarchy.
+	 */
+	tmp = acpi_find_root_bridge_handle(pdev);
+	if (!tmp)
+		return false;
+	root = acpi_pci_find_root(tmp);
+	if (!root)
+		return false;
+	if (!(root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL))
+		return false;
+
+	return true;
+}
+
 /* callback routine to register each ACPI PCI slot object */
 static acpi_status
 register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
@@ -142,16 +171,8 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
 	function = adr & 0xffff;
 
 	pdev = pbus->self;
-	if (pdev && pci_is_pcie(pdev)) {
-		tmp = acpi_find_root_bridge_handle(pdev);
-		if (tmp) {
-			struct acpi_pci_root *root = acpi_pci_find_root(tmp);
-
-			if (root && (root->osc_control_set &
-					OSC_PCI_EXPRESS_NATIVE_HP_CONTROL))
-				return AE_OK;
-		}
-	}
+	if (pdev && device_is_managed_by_native_pciehp(pdev))
+		return AE_OK;
 
 	newfunc = kzalloc(sizeof(struct acpiphp_func), GFP_KERNEL);
 	if (!newfunc)
@@ -382,10 +403,10 @@ static inline void config_p2p_bridge_flags(struct acpiphp_bridge *bridge)
 
 
 /* allocate and initialize host bridge data structure */
-static void add_host_bridge(acpi_handle *handle)
+static void add_host_bridge(struct acpi_pci_root *root)
 {
 	struct acpiphp_bridge *bridge;
-	struct acpi_pci_root *root = acpi_pci_find_root(handle);
+	acpi_handle handle = root->device->handle;
 
 	bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
 	if (bridge == NULL)
@@ -468,11 +489,12 @@ find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
 
 
 /* find hot-pluggable slots, and then find P2P bridge */
-static int add_bridge(acpi_handle handle)
+static int add_bridge(struct acpi_pci_root *root)
 {
 	acpi_status status;
 	unsigned long long tmp;
 	acpi_handle dummy_handle;
+	acpi_handle handle = root->device->handle;
 
 	/* if the bridge doesn't have _STA, we assume it is always there */
 	status = acpi_get_handle(handle, "_STA", &dummy_handle);
@@ -490,7 +512,7 @@ static int add_bridge(acpi_handle handle)
 	/* check if this bridge has ejectable slots */
 	if (detect_ejectable_slots(handle) > 0) {
 		dbg("found PCI host-bus bridge with hot-pluggable slots\n");
-		add_host_bridge(handle);
+		add_host_bridge(root);
 	}
 
 	/* search P2P bridges under this host bridge */
@@ -588,9 +610,10 @@ cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
 	return AE_OK;
 }
 
-static void remove_bridge(acpi_handle handle)
+static void remove_bridge(struct acpi_pci_root *root)
 {
 	struct acpiphp_bridge *bridge;
+	acpi_handle handle = root->device->handle;
 
 	/* cleanup p2p bridges under this host bridge
 	   in a depth-first manner */
@@ -869,17 +892,6 @@ static int __ref enable_device(struct acpiphp_slot *slot)
 	return retval;
 }
 
-static void disable_bridges(struct pci_bus *bus)
-{
-	struct pci_dev *dev;
-	list_for_each_entry(dev, &bus->devices, bus_list) {
-		if (dev->subordinate) {
-			disable_bridges(dev->subordinate);
-			pci_disable_device(dev);
-		}
-	}
-}
-
 /* return first device in slot, acquiring a reference on it */
 static struct pci_dev *dev_in_slot(struct acpiphp_slot *slot)
 {
@@ -931,12 +943,7 @@ static int disable_device(struct acpiphp_slot *slot)
 	 * here.
 	 */
 	while ((pdev = dev_in_slot(slot))) {
-		pci_stop_bus_device(pdev);
-		if (pdev->subordinate) {
-			disable_bridges(pdev->subordinate);
-			pci_disable_device(pdev);
-		}
-		__pci_remove_bus_device(pdev);
+		pci_stop_and_remove_bus_device(pdev);
 		pci_dev_put(pdev);
 	}
 
@@ -1477,34 +1484,6 @@ int __init acpiphp_get_num_slots(void)
 }
 
 
-#if 0
-/**
- * acpiphp_for_each_slot - call function for each slot
- * @fn: callback function
- * @data: context to be passed to callback function
- */
-static int acpiphp_for_each_slot(acpiphp_callback fn, void *data)
-{
-	struct list_head *node;
-	struct acpiphp_bridge *bridge;
-	struct acpiphp_slot *slot;
-	int retval = 0;
-
-	list_for_each (node, &bridge_list) {
-		bridge = (struct acpiphp_bridge *)node;
-		for (slot = bridge->slots; slot; slot = slot->next) {
-			retval = fn(slot, data);
-			if (!retval)
-				goto err_exit;
-		}
-	}
-
- err_exit:
-	return retval;
-}
-#endif
-
-
 /**
  * acpiphp_enable_slot - power on slot
  * @slot: ACPI PHP slot
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index 81af764c629..a6a71c41cdf 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -154,12 +154,8 @@ static int __init cpcihp_generic_init(void)
 	if(!r)
 		return -EBUSY;
 
-	bus = pci_find_bus(0, bridge_busnr);
-	if (!bus) {
-		err("Invalid bus number %d", bridge_busnr);
-		return -EINVAL;
-	}
-	dev = pci_get_slot(bus, PCI_DEVFN(bridge_slot, 0));
+	dev = pci_get_domain_bus_and_slot(0, bridge_busnr,
+					  PCI_DEVFN(bridge_slot, 0));
 	if(!dev || dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
 		err("Invalid bridge device %s", bridge);
 		pci_dev_put(dev);
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index e43908d9b5d..36112fe212d 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -2890,27 +2890,8 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
 						func->mem_head = mem_node;
 					} else
 						return -ENOMEM;
-				} else if ((temp_register & 0x0BL) == 0x04) {
-					/* Map memory */
-					base = temp_register & 0xFFFFFFF0;
-					base = ~base + 1;
-
-					dbg("CND:      length = 0x%x\n", base);
-					mem_node = get_resource(&(resources->mem_head), base);
-
-					/* allocate the resource to the board */
-					if (mem_node) {
-						base = mem_node->base;
-
-						mem_node->next = func->mem_head;
-						func->mem_head = mem_node;
-					} else
-						return -ENOMEM;
-				} else if ((temp_register & 0x0BL) == 0x06) {
-					/* Those bits are reserved, we can't handle this */
-					return 1;
 				} else {
-					/* Requesting space below 1M */
+					/* Reserved bits or requesting space below 1M */
 					return NOT_ENOUGH_RESOURCES;
 				}
 
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
deleted file mode 100644
index a019c9a712b..00000000000
--- a/drivers/pci/hotplug/fakephp.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/* Works like the fakephp driver used to, except a little better.
- *
- * - It's possible to remove devices with subordinate busses.
- * - New PCI devices that appear via any method, not just a fakephp triggered
- *   rescan, will be noticed.
- * - Devices that are removed via any method, not just a fakephp triggered
- *   removal, will also be noticed.
- *
- * Uses nothing from the pci-hotplug subsystem.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-#include "../pci.h"
-
-struct legacy_slot {
-	struct kobject		kobj;
-	struct pci_dev		*dev;
-	struct list_head	list;
-};
-
-static LIST_HEAD(legacy_list);
-
-static ssize_t legacy_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	struct legacy_slot *slot = container_of(kobj, typeof(*slot), kobj);
-	strcpy(buf, "1\n");
-	return 2;
-}
-
-static void remove_callback(void *data)
-{
-	pci_stop_and_remove_bus_device((struct pci_dev *)data);
-}
-
-static ssize_t legacy_store(struct kobject *kobj, struct attribute *attr,
-			    const char *buf, size_t len)
-{
-	struct legacy_slot *slot = container_of(kobj, typeof(*slot), kobj);
-	unsigned long val;
-
-	if (strict_strtoul(buf, 0, &val) < 0)
-		return -EINVAL;
-
-	if (val)
-		pci_rescan_bus(slot->dev->bus);
-	else
-		sysfs_schedule_callback(&slot->dev->dev.kobj, remove_callback,
-					slot->dev, THIS_MODULE);
-	return len;
-}
-
-static struct attribute *legacy_attrs[] = {
-	&(struct attribute){ .name = "power", .mode = 0644 },
-	NULL,
-};
-
-static void legacy_release(struct kobject *kobj)
-{
-	struct legacy_slot *slot = container_of(kobj, typeof(*slot), kobj);
-
-	pci_dev_put(slot->dev);
-	kfree(slot);
-}
-
-static struct kobj_type legacy_ktype = {
-	.sysfs_ops = &(const struct sysfs_ops){
-		.store = legacy_store, .show = legacy_show
-	},
-	.release = &legacy_release,
-	.default_attrs = legacy_attrs,
-};
-
-static int legacy_add_slot(struct pci_dev *pdev)
-{
-	struct legacy_slot *slot = kzalloc(sizeof(*slot), GFP_KERNEL);
-
-	if (!slot)
-		return -ENOMEM;
-
-	if (kobject_init_and_add(&slot->kobj, &legacy_ktype,
-				 &pci_slots_kset->kobj, "%s",
-				 dev_name(&pdev->dev))) {
-		dev_warn(&pdev->dev, "Failed to created legacy fake slot\n");
-		return -EINVAL;
-	}
-	slot->dev = pci_dev_get(pdev);
-
-	list_add(&slot->list, &legacy_list);
-
-	return 0;
-}
-
-static int legacy_notify(struct notifier_block *nb,
-			 unsigned long action, void *data)
-{
-	struct pci_dev *pdev = to_pci_dev(data);
-
-	if (action == BUS_NOTIFY_ADD_DEVICE) {
-		legacy_add_slot(pdev);
-	} else if (action == BUS_NOTIFY_DEL_DEVICE) {
-		struct legacy_slot *slot;
-
-		list_for_each_entry(slot, &legacy_list, list)
-			if (slot->dev == pdev)
-				goto found;
-
-		dev_warn(&pdev->dev, "Missing legacy fake slot?");
-		return -ENODEV;
-found:
-		kobject_del(&slot->kobj);
-		list_del(&slot->list);
-		kobject_put(&slot->kobj);
-	}
-
-	return 0;
-}
-
-static struct notifier_block legacy_notifier = {
-	.notifier_call = legacy_notify
-};
-
-static int __init init_legacy(void)
-{
-	struct pci_dev *pdev = NULL;
-
-	/* Add existing devices */
-	for_each_pci_dev(pdev)
-		legacy_add_slot(pdev);
-
-	/* Be alerted of any new ones */
-	bus_register_notifier(&pci_bus_type, &legacy_notifier);
-	return 0;
-}
-module_init(init_legacy);
-
-static void __exit remove_legacy(void)
-{
-	struct legacy_slot *slot, *tmp;
-
-	bus_unregister_notifier(&pci_bus_type, &legacy_notifier);
-
-	list_for_each_entry_safe(slot, tmp, &legacy_list, list) {
-		list_del(&slot->list);
-		kobject_del(&slot->kobj);
-		kobject_put(&slot->kobj);
-	}
-}
-module_exit(remove_legacy);
-
-
-MODULE_AUTHOR("Trent Piepho <xyzzy@speakeasy.org>");
-MODULE_DESCRIPTION("Legacy version of the fakephp interface");
-MODULE_LICENSE("GPL");
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index 376d70d1717..24d709b7388 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -81,16 +81,12 @@ static struct list_head __initdata dummy_slots = LIST_HEAD_INIT(dummy_slots);
 /* Dummy driver for dumplicate name detection */
 static int __init dummy_probe(struct pcie_device *dev)
 {
-	int pos;
 	u32 slot_cap;
 	acpi_handle handle;
 	struct dummy_slot *slot, *tmp;
 	struct pci_dev *pdev = dev->port;
 
-	pos = pci_pcie_cap(pdev);
-	if (!pos)
-		return -ENODEV;
-	pci_read_config_dword(pdev, pos + PCI_EXP_SLTCAP, &slot_cap);
+	pcie_capability_read_dword(pdev, PCI_EXP_SLTCAP, &slot_cap);
 	slot = kzalloc(sizeof(*slot), GFP_KERNEL);
 	if (!slot)
 		return -ENOMEM;
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 365c6b96c64..916bf4f53ab 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -300,24 +300,24 @@ static int pciehp_suspend (struct pcie_device *dev)
 
 static int pciehp_resume (struct pcie_device *dev)
 {
+	struct controller *ctrl;
+	struct slot *slot;
+	u8 status;
+
 	dev_info(&dev->device, "%s ENTRY\n", __func__);
-	if (pciehp_force) {
-		struct controller *ctrl = get_service_data(dev);
-		struct slot *slot;
-		u8 status;
+	ctrl = get_service_data(dev);
 
-		/* reinitialize the chipset's event detection logic */
-		pcie_enable_notification(ctrl);
+	/* reinitialize the chipset's event detection logic */
+	pcie_enable_notification(ctrl);
 
-		slot = ctrl->slot;
+	slot = ctrl->slot;
 
-		/* Check if slot is occupied */
-		pciehp_get_adapter_status(slot, &status);
-		if (status)
-			pciehp_enable_slot(slot);
-		else
-			pciehp_disable_slot(slot);
-	}
+	/* Check if slot is occupied */
+	pciehp_get_adapter_status(slot, &status);
+	if (status)
+		pciehp_enable_slot(slot);
+	else
+		pciehp_disable_slot(slot);
 	return 0;
 }
 #endif /* PM */
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 302451e8289..13b2eaf7ba4 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -44,25 +44,25 @@
 static inline int pciehp_readw(struct controller *ctrl, int reg, u16 *value)
 {
 	struct pci_dev *dev = ctrl->pcie->port;
-	return pci_read_config_word(dev, pci_pcie_cap(dev) + reg, value);
+	return pcie_capability_read_word(dev, reg, value);
 }
 
 static inline int pciehp_readl(struct controller *ctrl, int reg, u32 *value)
 {
 	struct pci_dev *dev = ctrl->pcie->port;
-	return pci_read_config_dword(dev, pci_pcie_cap(dev) + reg, value);
+	return pcie_capability_read_dword(dev, reg, value);
 }
 
 static inline int pciehp_writew(struct controller *ctrl, int reg, u16 value)
 {
 	struct pci_dev *dev = ctrl->pcie->port;
-	return pci_write_config_word(dev, pci_pcie_cap(dev) + reg, value);
+	return pcie_capability_write_word(dev, reg, value);
 }
 
 static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value)
 {
 	struct pci_dev *dev = ctrl->pcie->port;
-	return pci_write_config_dword(dev, pci_pcie_cap(dev) + reg, value);
+	return pcie_capability_write_dword(dev, reg, value);
 }
 
 /* Power Control Command */
@@ -855,10 +855,6 @@ struct controller *pcie_init(struct pcie_device *dev)
 		goto abort;
 	}
 	ctrl->pcie = dev;
-	if (!pci_pcie_cap(pdev)) {
-		ctrl_err(ctrl, "Cannot find PCI Express capability\n");
-		goto abort_ctrl;
-	}
 	if (pciehp_readl(ctrl, PCI_EXP_SLTCAP, &slot_cap)) {
 		ctrl_err(ctrl, "Cannot read SLOTCAP register\n");
 		goto abort_ctrl;
diff --git a/drivers/pci/hotplug/pcihp_slot.c b/drivers/pci/hotplug/pcihp_slot.c
index 8c05a18c977..fec2d5b7544 100644
--- a/drivers/pci/hotplug/pcihp_slot.c
+++ b/drivers/pci/hotplug/pcihp_slot.c
@@ -96,17 +96,11 @@ static void program_hpp_type1(struct pci_dev *dev, struct hpp_type1 *hpp)
 static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp)
 {
 	int pos;
-	u16 reg16;
 	u32 reg32;
 
 	if (!hpp)
 		return;
 
-	/* Find PCI Express capability */
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return;
-
 	if (hpp->revision > 1) {
 		dev_warn(&dev->dev, "PCIe settings rev %d not supported\n",
 			 hpp->revision);
@@ -114,17 +108,13 @@ static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp)
 	}
 
 	/* Initialize Device Control Register */
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &reg16);
-	reg16 = (reg16 & hpp->pci_exp_devctl_and) | hpp->pci_exp_devctl_or;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, reg16);
+	pcie_capability_clear_and_set_word(dev, PCI_EXP_DEVCTL,
+			~hpp->pci_exp_devctl_and, hpp->pci_exp_devctl_or);
 
 	/* Initialize Link Control Register */
-	if (dev->subordinate) {
-		pci_read_config_word(dev, pos + PCI_EXP_LNKCTL, &reg16);
-		reg16 = (reg16 & hpp->pci_exp_lnkctl_and)
-			| hpp->pci_exp_lnkctl_or;
-		pci_write_config_word(dev, pos + PCI_EXP_LNKCTL, reg16);
-	}
+	if (dev->subordinate)
+		pcie_capability_clear_and_set_word(dev, PCI_EXP_LNKCTL,
+			~hpp->pci_exp_lnkctl_and, hpp->pci_exp_lnkctl_or);
 
 	/* Find Advanced Error Reporting Enhanced Capability */
 	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 74bbaf82638..aeccc911abb 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -433,8 +433,8 @@ static int sriov_init(struct pci_dev *dev, int pos)
 	struct resource *res;
 	struct pci_dev *pdev;
 
-	if (dev->pcie_type != PCI_EXP_TYPE_RC_END &&
-	    dev->pcie_type != PCI_EXP_TYPE_ENDPOINT)
+	if (pci_pcie_type(dev) != PCI_EXP_TYPE_RC_END &&
+	    pci_pcie_type(dev) != PCI_EXP_TYPE_ENDPOINT)
 		return -ENODEV;
 
 	pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &ctrl);
@@ -503,7 +503,7 @@ found:
 	iov->self = dev;
 	pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap);
 	pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
-	if (dev->pcie_type == PCI_EXP_TYPE_RC_END)
+	if (pci_pcie_type(dev) == PCI_EXP_TYPE_RC_END)
 		iov->link = PCI_DEVFN(PCI_SLOT(dev->devfn), iov->link);
 
 	if (pdev)
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index fbf7b26c7c8..c5792d622dc 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -266,8 +266,8 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 	}
 
 	if (!error)
-		dev_printk(KERN_INFO, &dev->dev,
-				"power state changed by ACPI to D%d\n", state);
+		dev_info(&dev->dev, "power state changed by ACPI to %s\n",
+			 pci_power_name(state));
 
 	return error;
 }
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 185be370334..94c6e2aa03d 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -139,7 +139,6 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
 		return retval;
 	return count;
 }
-static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
 
 /**
  * store_remove_id - remove a PCI device ID from this driver
@@ -185,38 +184,16 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
 		return retval;
 	return count;
 }
-static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
 
-static int
-pci_create_newid_files(struct pci_driver *drv)
-{
-	int error = 0;
-
-	if (drv->probe != NULL) {
-		error = driver_create_file(&drv->driver, &driver_attr_new_id);
-		if (error == 0) {
-			error = driver_create_file(&drv->driver,
-					&driver_attr_remove_id);
-			if (error)
-				driver_remove_file(&drv->driver,
-						&driver_attr_new_id);
-		}
-	}
-	return error;
-}
+static struct driver_attribute pci_drv_attrs[] = {
+	__ATTR(new_id, S_IWUSR, NULL, store_new_id),
+	__ATTR(remove_id, S_IWUSR, NULL, store_remove_id),
+	__ATTR_NULL,
+};
 
-static void pci_remove_newid_files(struct pci_driver *drv)
-{
-	driver_remove_file(&drv->driver, &driver_attr_remove_id);
-	driver_remove_file(&drv->driver, &driver_attr_new_id);
-}
-#else /* !CONFIG_HOTPLUG */
-static inline int pci_create_newid_files(struct pci_driver *drv)
-{
-	return 0;
-}
-static inline void pci_remove_newid_files(struct pci_driver *drv) {}
-#endif
+#else
+#define pci_drv_attrs	NULL
+#endif /* CONFIG_HOTPLUG */
 
 /**
  * pci_match_id - See if a pci device matches a given pci_id table
@@ -280,8 +257,12 @@ static long local_pci_probe(void *_ddi)
 {
 	struct drv_dev_and_id *ddi = _ddi;
 	struct device *dev = &ddi->dev->dev;
+	struct device *parent = dev->parent;
 	int rc;
 
+	/* The parent bridge must be in active state when probing */
+	if (parent)
+		pm_runtime_get_sync(parent);
 	/* Unbound PCI devices are always set to disabled and suspended.
 	 * During probe, the device is set to enabled and active and the
 	 * usage count is incremented.  If the driver supports runtime PM,
@@ -298,6 +279,8 @@ static long local_pci_probe(void *_ddi)
 		pm_runtime_set_suspended(dev);
 		pm_runtime_put_noidle(dev);
 	}
+	if (parent)
+		pm_runtime_put(parent);
 	return rc;
 }
 
@@ -624,21 +607,6 @@ static int pci_pm_prepare(struct device *dev)
 	int error = 0;
 
 	/*
-	 * If a PCI device configured to wake up the system from sleep states
-	 * has been suspended at run time and there's a resume request pending
-	 * for it, this is equivalent to the device signaling wakeup, so the
-	 * system suspend operation should be aborted.
-	 */
-	pm_runtime_get_noresume(dev);
-	if (pm_runtime_barrier(dev) && device_may_wakeup(dev))
-		pm_wakeup_event(dev, 0);
-
-	if (pm_wakeup_pending()) {
-		pm_runtime_put_sync(dev);
-		return -EBUSY;
-	}
-
-	/*
 	 * PCI devices suspended at run time need to be resumed at this
 	 * point, because in general it is necessary to reconfigure them for
 	 * system suspend.  Namely, if the device is supposed to wake up the
@@ -661,8 +629,6 @@ static void pci_pm_complete(struct device *dev)
 
 	if (drv && drv->pm && drv->pm->complete)
 		drv->pm->complete(dev);
-
-	pm_runtime_put_sync(dev);
 }
 
 #else /* !CONFIG_PM_SLEEP */
@@ -959,6 +925,13 @@ static int pci_pm_poweroff_noirq(struct device *dev)
 	if (!pci_dev->state_saved && !pci_is_bridge(pci_dev))
 		pci_prepare_to_sleep(pci_dev);
 
+	/*
+	 * The reason for doing this here is the same as for the analogous code
+	 * in pci_pm_suspend_noirq().
+	 */
+	if (pci_dev->class == PCI_CLASS_SERIAL_USB_EHCI)
+		pci_write_config_word(pci_dev, PCI_COMMAND, 0);
+
 	return 0;
 }
 
@@ -1149,8 +1122,6 @@ const struct dev_pm_ops pci_dev_pm_ops = {
 int __pci_register_driver(struct pci_driver *drv, struct module *owner,
 			  const char *mod_name)
 {
-	int error;
-
 	/* initialize common driver fields */
 	drv->driver.name = drv->name;
 	drv->driver.bus = &pci_bus_type;
@@ -1161,19 +1132,7 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner,
 	INIT_LIST_HEAD(&drv->dynids.list);
 
 	/* register with core */
-	error = driver_register(&drv->driver);
-	if (error)
-		goto out;
-
-	error = pci_create_newid_files(drv);
-	if (error)
-		goto out_newid;
-out:
-	return error;
-
-out_newid:
-	driver_unregister(&drv->driver);
-	goto out;
+	return driver_register(&drv->driver);
 }
 
 /**
@@ -1189,7 +1148,6 @@ out_newid:
 void
 pci_unregister_driver(struct pci_driver *drv)
 {
-	pci_remove_newid_files(drv);
 	driver_unregister(&drv->driver);
 	pci_free_dynids(drv);
 }
@@ -1289,6 +1247,7 @@ struct bus_type pci_bus_type = {
 	.shutdown	= pci_device_shutdown,
 	.dev_attrs	= pci_dev_attrs,
 	.bus_attrs	= pci_bus_attrs,
+	.drv_attrs	= pci_drv_attrs,
 	.pm		= PCI_PM_OPS_PTR,
 };
 
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 6869009c739..02d107b1528 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -458,6 +458,40 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf)
 }
 struct device_attribute vga_attr = __ATTR_RO(boot_vga);
 
+static void
+pci_config_pm_runtime_get(struct pci_dev *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device *parent = dev->parent;
+
+	if (parent)
+		pm_runtime_get_sync(parent);
+	pm_runtime_get_noresume(dev);
+	/*
+	 * pdev->current_state is set to PCI_D3cold during suspending,
+	 * so wait until suspending completes
+	 */
+	pm_runtime_barrier(dev);
+	/*
+	 * Only need to resume devices in D3cold, because config
+	 * registers are still accessible for devices suspended but
+	 * not in D3cold.
+	 */
+	if (pdev->current_state == PCI_D3cold)
+		pm_runtime_resume(dev);
+}
+
+static void
+pci_config_pm_runtime_put(struct pci_dev *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device *parent = dev->parent;
+
+	pm_runtime_put(dev);
+	if (parent)
+		pm_runtime_put_sync(parent);
+}
+
 static ssize_t
 pci_read_config(struct file *filp, struct kobject *kobj,
 		struct bin_attribute *bin_attr,
@@ -484,6 +518,8 @@ pci_read_config(struct file *filp, struct kobject *kobj,
 		size = count;
 	}
 
+	pci_config_pm_runtime_get(dev);
+
 	if ((off & 1) && size) {
 		u8 val;
 		pci_user_read_config_byte(dev, off, &val);
@@ -529,6 +565,8 @@ pci_read_config(struct file *filp, struct kobject *kobj,
 		--size;
 	}
 
+	pci_config_pm_runtime_put(dev);
+
 	return count;
 }
 
@@ -549,6 +587,8 @@ pci_write_config(struct file* filp, struct kobject *kobj,
 		count = size;
 	}
 	
+	pci_config_pm_runtime_get(dev);
+
 	if ((off & 1) && size) {
 		pci_user_write_config_byte(dev, off, data[off - init_off]);
 		off++;
@@ -587,6 +627,8 @@ pci_write_config(struct file* filp, struct kobject *kobj,
 		--size;
 	}
 
+	pci_config_pm_runtime_put(dev);
+
 	return count;
 }
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index f3ea977a5b1..54858838f09 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -254,52 +254,17 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap)
 }
 
 /**
- * pci_pcie_cap2 - query for devices' PCI_CAP_ID_EXP v2 capability structure
- * @dev: PCI device to check
- *
- * Like pci_pcie_cap() but also checks that the PCIe capability version is
- * >= 2.  Note that v1 capability structures could be sparse in that not
- * all register fields were required.  v2 requires the entire structure to
- * be present size wise, while still allowing for non-implemented registers
- * to exist but they must be hardwired to 0.
- *
- * Due to the differences in the versions of capability structures, one
- * must be careful not to try and access non-existant registers that may
- * exist in early versions - v1 - of Express devices.
- *
- * Returns the offset of the PCIe capability structure as long as the
- * capability version is >= 2; otherwise 0 is returned.
- */
-static int pci_pcie_cap2(struct pci_dev *dev)
-{
-	u16 flags;
-	int pos;
-
-	pos = pci_pcie_cap(dev);
-	if (pos) {
-		pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &flags);
-		if ((flags & PCI_EXP_FLAGS_VERS) < 2)
-			pos = 0;
-	}
-
-	return pos;
-}
-
-/**
- * pci_find_ext_capability - Find an extended capability
+ * pci_find_next_ext_capability - Find an extended capability
  * @dev: PCI device to query
+ * @start: address at which to start looking (0 to start at beginning of list)
  * @cap: capability code
  *
- * Returns the address of the requested extended capability structure
+ * Returns the address of the next matching extended capability structure
  * within the device's PCI configuration space or 0 if the device does
- * not support it.  Possible values for @cap:
- *
- *  %PCI_EXT_CAP_ID_ERR		Advanced Error Reporting
- *  %PCI_EXT_CAP_ID_VC		Virtual Channel
- *  %PCI_EXT_CAP_ID_DSN		Device Serial Number
- *  %PCI_EXT_CAP_ID_PWR		Power Budgeting
+ * not support it.  Some capabilities can occur several times, e.g., the
+ * vendor-specific capability, and this provides a way to find them all.
  */
-int pci_find_ext_capability(struct pci_dev *dev, int cap)
+int pci_find_next_ext_capability(struct pci_dev *dev, int start, int cap)
 {
 	u32 header;
 	int ttl;
@@ -311,6 +276,9 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
 	if (dev->cfg_size <= PCI_CFG_SPACE_SIZE)
 		return 0;
 
+	if (start)
+		pos = start;
+
 	if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL)
 		return 0;
 
@@ -322,7 +290,7 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
 		return 0;
 
 	while (ttl-- > 0) {
-		if (PCI_EXT_CAP_ID(header) == cap)
+		if (PCI_EXT_CAP_ID(header) == cap && pos != start)
 			return pos;
 
 		pos = PCI_EXT_CAP_NEXT(header);
@@ -335,6 +303,26 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(pci_find_next_ext_capability);
+
+/**
+ * pci_find_ext_capability - Find an extended capability
+ * @dev: PCI device to query
+ * @cap: capability code
+ *
+ * Returns the address of the requested extended capability structure
+ * within the device's PCI configuration space or 0 if the device does
+ * not support it.  Possible values for @cap:
+ *
+ *  %PCI_EXT_CAP_ID_ERR		Advanced Error Reporting
+ *  %PCI_EXT_CAP_ID_VC		Virtual Channel
+ *  %PCI_EXT_CAP_ID_DSN		Device Serial Number
+ *  %PCI_EXT_CAP_ID_PWR		Power Budgeting
+ */
+int pci_find_ext_capability(struct pci_dev *dev, int cap)
+{
+	return pci_find_next_ext_capability(dev, 0, cap);
+}
 EXPORT_SYMBOL_GPL(pci_find_ext_capability);
 
 static int __pci_find_next_ht_cap(struct pci_dev *dev, int pos, int ht_cap)
@@ -854,21 +842,6 @@ EXPORT_SYMBOL(pci_choose_state);
 
 #define PCI_EXP_SAVE_REGS	7
 
-#define pcie_cap_has_devctl(type, flags)	1
-#define pcie_cap_has_lnkctl(type, flags)		\
-		((flags & PCI_EXP_FLAGS_VERS) > 1 ||	\
-		 (type == PCI_EXP_TYPE_ROOT_PORT ||	\
-		  type == PCI_EXP_TYPE_ENDPOINT ||	\
-		  type == PCI_EXP_TYPE_LEG_END))
-#define pcie_cap_has_sltctl(type, flags)		\
-		((flags & PCI_EXP_FLAGS_VERS) > 1 ||	\
-		 ((type == PCI_EXP_TYPE_ROOT_PORT) ||	\
-		  (type == PCI_EXP_TYPE_DOWNSTREAM &&	\
-		   (flags & PCI_EXP_FLAGS_SLOT))))
-#define pcie_cap_has_rtctl(type, flags)			\
-		((flags & PCI_EXP_FLAGS_VERS) > 1 ||	\
-		 (type == PCI_EXP_TYPE_ROOT_PORT ||	\
-		  type == PCI_EXP_TYPE_RC_EC))
 
 static struct pci_cap_saved_state *pci_find_saved_cap(
 	struct pci_dev *pci_dev, char cap)
@@ -885,13 +858,11 @@ static struct pci_cap_saved_state *pci_find_saved_cap(
 
 static int pci_save_pcie_state(struct pci_dev *dev)
 {
-	int pos, i = 0;
+	int i = 0;
 	struct pci_cap_saved_state *save_state;
 	u16 *cap;
-	u16 flags;
 
-	pos = pci_pcie_cap(dev);
-	if (!pos)
+	if (!pci_is_pcie(dev))
 		return 0;
 
 	save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP);
@@ -899,60 +870,37 @@ static int pci_save_pcie_state(struct pci_dev *dev)
 		dev_err(&dev->dev, "buffer not found in %s\n", __func__);
 		return -ENOMEM;
 	}
-	cap = (u16 *)&save_state->cap.data[0];
-
-	pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &flags);
 
-	if (pcie_cap_has_devctl(dev->pcie_type, flags))
-		pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &cap[i++]);
-	if (pcie_cap_has_lnkctl(dev->pcie_type, flags))
-		pci_read_config_word(dev, pos + PCI_EXP_LNKCTL, &cap[i++]);
-	if (pcie_cap_has_sltctl(dev->pcie_type, flags))
-		pci_read_config_word(dev, pos + PCI_EXP_SLTCTL, &cap[i++]);
-	if (pcie_cap_has_rtctl(dev->pcie_type, flags))
-		pci_read_config_word(dev, pos + PCI_EXP_RTCTL, &cap[i++]);
-
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return 0;
+	cap = (u16 *)&save_state->cap.data[0];
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &cap[i++]);
+	pcie_capability_read_word(dev, PCI_EXP_LNKCTL, &cap[i++]);
+	pcie_capability_read_word(dev, PCI_EXP_SLTCTL, &cap[i++]);
+	pcie_capability_read_word(dev, PCI_EXP_RTCTL,  &cap[i++]);
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL2, &cap[i++]);
+	pcie_capability_read_word(dev, PCI_EXP_LNKCTL2, &cap[i++]);
+	pcie_capability_read_word(dev, PCI_EXP_SLTCTL2, &cap[i++]);
 
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &cap[i++]);
-	pci_read_config_word(dev, pos + PCI_EXP_LNKCTL2, &cap[i++]);
-	pci_read_config_word(dev, pos + PCI_EXP_SLTCTL2, &cap[i++]);
 	return 0;
 }
 
 static void pci_restore_pcie_state(struct pci_dev *dev)
 {
-	int i = 0, pos;
+	int i = 0;
 	struct pci_cap_saved_state *save_state;
 	u16 *cap;
-	u16 flags;
 
 	save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP);
-	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
-	if (!save_state || pos <= 0)
-		return;
-	cap = (u16 *)&save_state->cap.data[0];
-
-	pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &flags);
-
-	if (pcie_cap_has_devctl(dev->pcie_type, flags))
-		pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, cap[i++]);
-	if (pcie_cap_has_lnkctl(dev->pcie_type, flags))
-		pci_write_config_word(dev, pos + PCI_EXP_LNKCTL, cap[i++]);
-	if (pcie_cap_has_sltctl(dev->pcie_type, flags))
-		pci_write_config_word(dev, pos + PCI_EXP_SLTCTL, cap[i++]);
-	if (pcie_cap_has_rtctl(dev->pcie_type, flags))
-		pci_write_config_word(dev, pos + PCI_EXP_RTCTL, cap[i++]);
-
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
+	if (!save_state)
 		return;
 
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, cap[i++]);
-	pci_write_config_word(dev, pos + PCI_EXP_LNKCTL2, cap[i++]);
-	pci_write_config_word(dev, pos + PCI_EXP_SLTCTL2, cap[i++]);
+	cap = (u16 *)&save_state->cap.data[0];
+	pcie_capability_write_word(dev, PCI_EXP_DEVCTL, cap[i++]);
+	pcie_capability_write_word(dev, PCI_EXP_LNKCTL, cap[i++]);
+	pcie_capability_write_word(dev, PCI_EXP_SLTCTL, cap[i++]);
+	pcie_capability_write_word(dev, PCI_EXP_RTCTL, cap[i++]);
+	pcie_capability_write_word(dev, PCI_EXP_DEVCTL2, cap[i++]);
+	pcie_capability_write_word(dev, PCI_EXP_LNKCTL2, cap[i++]);
+	pcie_capability_write_word(dev, PCI_EXP_SLTCTL2, cap[i++]);
 }
 
 
@@ -1543,7 +1491,7 @@ void pci_pme_wakeup_bus(struct pci_bus *bus)
 
 /**
  * pci_wakeup - Wake up a PCI device
- * @dev: Device to handle.
+ * @pci_dev: Device to handle.
  * @ign: ignored parameter
  */
 static int pci_wakeup(struct pci_dev *pci_dev, void *ign)
@@ -1941,6 +1889,7 @@ void pci_pm_init(struct pci_dev *dev)
 	dev->pm_cap = pm;
 	dev->d3_delay = PCI_PM_D3_WAIT;
 	dev->d3cold_delay = PCI_PM_D3COLD_WAIT;
+	dev->d3cold_allowed = true;
 
 	dev->d1_support = false;
 	dev->d2_support = false;
@@ -2066,35 +2015,24 @@ void pci_free_cap_save_buffers(struct pci_dev *dev)
  */
 void pci_enable_ari(struct pci_dev *dev)
 {
-	int pos;
 	u32 cap;
-	u16 ctrl;
 	struct pci_dev *bridge;
 
 	if (pcie_ari_disabled || !pci_is_pcie(dev) || dev->devfn)
 		return;
 
-	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ARI);
-	if (!pos)
+	if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ARI))
 		return;
 
 	bridge = dev->bus->self;
 	if (!bridge)
 		return;
 
-	/* ARI is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(bridge);
-	if (!pos)
-		return;
-
-	pci_read_config_dword(bridge, pos + PCI_EXP_DEVCAP2, &cap);
+	pcie_capability_read_dword(bridge, PCI_EXP_DEVCAP2, &cap);
 	if (!(cap & PCI_EXP_DEVCAP2_ARI))
 		return;
 
-	pci_read_config_word(bridge, pos + PCI_EXP_DEVCTL2, &ctrl);
-	ctrl |= PCI_EXP_DEVCTL2_ARI;
-	pci_write_config_word(bridge, pos + PCI_EXP_DEVCTL2, ctrl);
-
+	pcie_capability_set_word(bridge, PCI_EXP_DEVCTL2, PCI_EXP_DEVCTL2_ARI);
 	bridge->ari_enabled = 1;
 }
 
@@ -2109,20 +2047,14 @@ void pci_enable_ari(struct pci_dev *dev)
  */
 void pci_enable_ido(struct pci_dev *dev, unsigned long type)
 {
-	int pos;
-	u16 ctrl;
+	u16 ctrl = 0;
 
-	/* ID-based Ordering is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return;
-
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
 	if (type & PCI_EXP_IDO_REQUEST)
 		ctrl |= PCI_EXP_IDO_REQ_EN;
 	if (type & PCI_EXP_IDO_COMPLETION)
 		ctrl |= PCI_EXP_IDO_CMP_EN;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
+	if (ctrl)
+		pcie_capability_set_word(dev, PCI_EXP_DEVCTL2, ctrl);
 }
 EXPORT_SYMBOL(pci_enable_ido);
 
@@ -2133,20 +2065,14 @@ EXPORT_SYMBOL(pci_enable_ido);
  */
 void pci_disable_ido(struct pci_dev *dev, unsigned long type)
 {
-	int pos;
-	u16 ctrl;
+	u16 ctrl = 0;
 
-	/* ID-based Ordering is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return;
-
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
 	if (type & PCI_EXP_IDO_REQUEST)
-		ctrl &= ~PCI_EXP_IDO_REQ_EN;
+		ctrl |= PCI_EXP_IDO_REQ_EN;
 	if (type & PCI_EXP_IDO_COMPLETION)
-		ctrl &= ~PCI_EXP_IDO_CMP_EN;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
+		ctrl |= PCI_EXP_IDO_CMP_EN;
+	if (ctrl)
+		pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2, ctrl);
 }
 EXPORT_SYMBOL(pci_disable_ido);
 
@@ -2171,17 +2097,11 @@ EXPORT_SYMBOL(pci_disable_ido);
  */
 int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type type)
 {
-	int pos;
 	u32 cap;
 	u16 ctrl;
 	int ret;
 
-	/* OBFF is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return -ENOTSUPP;
-
-	pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP2, &cap);
+	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP2, &cap);
 	if (!(cap & PCI_EXP_OBFF_MASK))
 		return -ENOTSUPP; /* no OBFF support at all */
 
@@ -2192,7 +2112,7 @@ int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type type)
 			return ret;
 	}
 
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL2, &ctrl);
 	if (cap & PCI_EXP_OBFF_WAKE)
 		ctrl |= PCI_EXP_OBFF_WAKE_EN;
 	else {
@@ -2210,7 +2130,7 @@ int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type type)
 			return -ENOTSUPP;
 		}
 	}
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
+	pcie_capability_write_word(dev, PCI_EXP_DEVCTL2, ctrl);
 
 	return 0;
 }
@@ -2224,17 +2144,7 @@ EXPORT_SYMBOL(pci_enable_obff);
  */
 void pci_disable_obff(struct pci_dev *dev)
 {
-	int pos;
-	u16 ctrl;
-
-	/* OBFF is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return;
-
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
-	ctrl &= ~PCI_EXP_OBFF_WAKE_EN;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
+	pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2, PCI_EXP_OBFF_WAKE_EN);
 }
 EXPORT_SYMBOL(pci_disable_obff);
 
@@ -2247,15 +2157,9 @@ EXPORT_SYMBOL(pci_disable_obff);
  */
 static bool pci_ltr_supported(struct pci_dev *dev)
 {
-	int pos;
 	u32 cap;
 
-	/* LTR is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return false;
-
-	pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP2, &cap);
+	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP2, &cap);
 
 	return cap & PCI_EXP_DEVCAP2_LTR;
 }
@@ -2272,22 +2176,15 @@ static bool pci_ltr_supported(struct pci_dev *dev)
  */
 int pci_enable_ltr(struct pci_dev *dev)
 {
-	int pos;
-	u16 ctrl;
 	int ret;
 
-	if (!pci_ltr_supported(dev))
-		return -ENOTSUPP;
-
-	/* LTR is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return -ENOTSUPP;
-
 	/* Only primary function can enable/disable LTR */
 	if (PCI_FUNC(dev->devfn) != 0)
 		return -EINVAL;
 
+	if (!pci_ltr_supported(dev))
+		return -ENOTSUPP;
+
 	/* Enable upstream ports first */
 	if (dev->bus->self) {
 		ret = pci_enable_ltr(dev->bus->self);
@@ -2295,11 +2192,7 @@ int pci_enable_ltr(struct pci_dev *dev)
 			return ret;
 	}
 
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
-	ctrl |= PCI_EXP_LTR_EN;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
-
-	return 0;
+	return pcie_capability_set_word(dev, PCI_EXP_DEVCTL2, PCI_EXP_LTR_EN);
 }
 EXPORT_SYMBOL(pci_enable_ltr);
 
@@ -2309,24 +2202,14 @@ EXPORT_SYMBOL(pci_enable_ltr);
  */
 void pci_disable_ltr(struct pci_dev *dev)
 {
-	int pos;
-	u16 ctrl;
-
-	if (!pci_ltr_supported(dev))
-		return;
-
-	/* LTR is a PCIe cap v2 feature */
-	pos = pci_pcie_cap2(dev);
-	if (!pos)
-		return;
-
 	/* Only primary function can enable/disable LTR */
 	if (PCI_FUNC(dev->devfn) != 0)
 		return;
 
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
-	ctrl &= ~PCI_EXP_LTR_EN;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
+	if (!pci_ltr_supported(dev))
+		return;
+
+	pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2, PCI_EXP_LTR_EN);
 }
 EXPORT_SYMBOL(pci_disable_ltr);
 
@@ -2409,9 +2292,6 @@ void pci_enable_acs(struct pci_dev *dev)
 	if (!pci_acs_enable)
 		return;
 
-	if (!pci_is_pcie(dev))
-		return;
-
 	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ACS);
 	if (!pos)
 		return;
@@ -2459,8 +2339,8 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
 		acs_flags &= (PCI_ACS_RR | PCI_ACS_CR |
 			      PCI_ACS_EC | PCI_ACS_DT);
 
-	if (pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM ||
-	    pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_DOWNSTREAM ||
+	    pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT ||
 	    pdev->multifunction) {
 		pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ACS);
 		if (!pos)
@@ -3176,15 +3056,10 @@ EXPORT_SYMBOL(pci_set_dma_seg_boundary);
 static int pcie_flr(struct pci_dev *dev, int probe)
 {
 	int i;
-	int pos;
 	u32 cap;
-	u16 status, control;
-
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return -ENOTTY;
+	u16 status;
 
-	pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP, &cap);
+	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap);
 	if (!(cap & PCI_EXP_DEVCAP_FLR))
 		return -ENOTTY;
 
@@ -3196,7 +3071,7 @@ static int pcie_flr(struct pci_dev *dev, int probe)
 		if (i)
 			msleep((1 << (i - 1)) * 100);
 
-		pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &status);
+		pcie_capability_read_word(dev, PCI_EXP_DEVSTA, &status);
 		if (!(status & PCI_EXP_DEVSTA_TRPND))
 			goto clear;
 	}
@@ -3205,9 +3080,7 @@ static int pcie_flr(struct pci_dev *dev, int probe)
 			"proceeding with reset anyway\n");
 
 clear:
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &control);
-	control |= PCI_EXP_DEVCTL_BCR_FLR;
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, control);
+	pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR);
 
 	msleep(100);
 
@@ -3575,18 +3448,11 @@ EXPORT_SYMBOL(pcix_set_mmrbc);
  */
 int pcie_get_readrq(struct pci_dev *dev)
 {
-	int ret, cap;
 	u16 ctl;
 
-	cap = pci_pcie_cap(dev);
-	if (!cap)
-		return -EINVAL;
-
-	ret = pci_read_config_word(dev, cap + PCI_EXP_DEVCTL, &ctl);
-	if (!ret)
-		ret = 128 << ((ctl & PCI_EXP_DEVCTL_READRQ) >> 12);
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &ctl);
 
-	return ret;
+	return 128 << ((ctl & PCI_EXP_DEVCTL_READRQ) >> 12);
 }
 EXPORT_SYMBOL(pcie_get_readrq);
 
@@ -3600,19 +3466,11 @@ EXPORT_SYMBOL(pcie_get_readrq);
  */
 int pcie_set_readrq(struct pci_dev *dev, int rq)
 {
-	int cap, err = -EINVAL;
-	u16 ctl, v;
+	u16 v;
 
 	if (rq < 128 || rq > 4096 || !is_power_of_2(rq))
-		goto out;
-
-	cap = pci_pcie_cap(dev);
-	if (!cap)
-		goto out;
+		return -EINVAL;
 
-	err = pci_read_config_word(dev, cap + PCI_EXP_DEVCTL, &ctl);
-	if (err)
-		goto out;
 	/*
 	 * If using the "performance" PCIe config, we clamp the
 	 * read rq size to the max packet size to prevent the
@@ -3630,14 +3488,8 @@ int pcie_set_readrq(struct pci_dev *dev, int rq)
 
 	v = (ffs(rq) - 8) << 12;
 
-	if ((ctl & PCI_EXP_DEVCTL_READRQ) != v) {
-		ctl &= ~PCI_EXP_DEVCTL_READRQ;
-		ctl |= v;
-		err = pci_write_config_word(dev, cap + PCI_EXP_DEVCTL, ctl);
-	}
-
-out:
-	return err;
+	return pcie_capability_clear_and_set_word(dev, PCI_EXP_DEVCTL,
+						  PCI_EXP_DEVCTL_READRQ, v);
 }
 EXPORT_SYMBOL(pcie_set_readrq);
 
@@ -3650,18 +3502,11 @@ EXPORT_SYMBOL(pcie_set_readrq);
  */
 int pcie_get_mps(struct pci_dev *dev)
 {
-	int ret, cap;
 	u16 ctl;
 
-	cap = pci_pcie_cap(dev);
-	if (!cap)
-		return -EINVAL;
-
-	ret = pci_read_config_word(dev, cap + PCI_EXP_DEVCTL, &ctl);
-	if (!ret)
-		ret = 128 << ((ctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &ctl);
 
-	return ret;
+	return 128 << ((ctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
 }
 
 /**
@@ -3674,32 +3519,18 @@ int pcie_get_mps(struct pci_dev *dev)
  */
 int pcie_set_mps(struct pci_dev *dev, int mps)
 {
-	int cap, err = -EINVAL;
-	u16 ctl, v;
+	u16 v;
 
 	if (mps < 128 || mps > 4096 || !is_power_of_2(mps))
-		goto out;
+		return -EINVAL;
 
 	v = ffs(mps) - 8;
 	if (v > dev->pcie_mpss) 
-		goto out;
+		return -EINVAL;
 	v <<= 5;
 
-	cap = pci_pcie_cap(dev);
-	if (!cap)
-		goto out;
-
-	err = pci_read_config_word(dev, cap + PCI_EXP_DEVCTL, &ctl);
-	if (err)
-		goto out;
-
-	if ((ctl & PCI_EXP_DEVCTL_PAYLOAD) != v) {
-		ctl &= ~PCI_EXP_DEVCTL_PAYLOAD;
-		ctl |= v;
-		err = pci_write_config_word(dev, cap + PCI_EXP_DEVCTL, ctl);
-	}
-out:
-	return err;
+	return pcie_capability_clear_and_set_word(dev, PCI_EXP_DEVCTL,
+						  PCI_EXP_DEVCTL_PAYLOAD, v);
 }
 
 /**
diff --git a/drivers/pci/pcie/aer/aer_inject.c b/drivers/pci/pcie/aer/aer_inject.c
index 52229863e9f..4e24cb8a94a 100644
--- a/drivers/pci/pcie/aer/aer_inject.c
+++ b/drivers/pci/pcie/aer/aer_inject.c
@@ -288,7 +288,7 @@ static struct pci_dev *pcie_find_root_port(struct pci_dev *dev)
 	while (1) {
 		if (!pci_is_pcie(dev))
 			break;
-		if (dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
+		if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT)
 			return dev;
 		if (!dev->bus->self)
 			break;
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 58ad7917553..030cf12d546 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -48,7 +48,7 @@ static pci_ers_result_t aer_error_detected(struct pci_dev *dev,
 static void aer_error_resume(struct pci_dev *dev);
 static pci_ers_result_t aer_root_reset(struct pci_dev *dev);
 
-static struct pci_error_handlers aer_error_handlers = {
+static const struct pci_error_handlers aer_error_handlers = {
 	.error_detected = aer_error_detected,
 	.resume		= aer_error_resume,
 };
@@ -81,10 +81,11 @@ bool pci_aer_available(void)
 static int set_device_error_reporting(struct pci_dev *dev, void *data)
 {
 	bool enable = *((bool *)data);
+	int type = pci_pcie_type(dev);
 
-	if ((dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) ||
-	    (dev->pcie_type == PCI_EXP_TYPE_UPSTREAM) ||
-	    (dev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)) {
+	if ((type == PCI_EXP_TYPE_ROOT_PORT) ||
+	    (type == PCI_EXP_TYPE_UPSTREAM) ||
+	    (type == PCI_EXP_TYPE_DOWNSTREAM)) {
 		if (enable)
 			pci_enable_pcie_error_reporting(dev);
 		else
@@ -121,19 +122,17 @@ static void set_downstream_devices_error_reporting(struct pci_dev *dev,
 static void aer_enable_rootport(struct aer_rpc *rpc)
 {
 	struct pci_dev *pdev = rpc->rpd->port;
-	int pos, aer_pos;
+	int aer_pos;
 	u16 reg16;
 	u32 reg32;
 
-	pos = pci_pcie_cap(pdev);
 	/* Clear PCIe Capability's Device Status */
-	pci_read_config_word(pdev, pos+PCI_EXP_DEVSTA, &reg16);
-	pci_write_config_word(pdev, pos+PCI_EXP_DEVSTA, reg16);
+	pcie_capability_read_word(pdev, PCI_EXP_DEVSTA, &reg16);
+	pcie_capability_write_word(pdev, PCI_EXP_DEVSTA, reg16);
 
 	/* Disable system error generation in response to error messages */
-	pci_read_config_word(pdev, pos + PCI_EXP_RTCTL, &reg16);
-	reg16 &= ~(SYSTEM_ERROR_INTR_ON_MESG_MASK);
-	pci_write_config_word(pdev, pos + PCI_EXP_RTCTL, reg16);
+	pcie_capability_clear_word(pdev, PCI_EXP_RTCTL,
+				   SYSTEM_ERROR_INTR_ON_MESG_MASK);
 
 	aer_pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
 	/* Clear error status */
@@ -395,9 +394,8 @@ static void aer_error_resume(struct pci_dev *dev)
 	u16 reg16;
 
 	/* Clean up Root device status */
-	pos = pci_pcie_cap(dev);
-	pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &reg16);
-	pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16);
+	pcie_capability_read_word(dev, PCI_EXP_DEVSTA, &reg16);
+	pcie_capability_write_word(dev, PCI_EXP_DEVSTA, reg16);
 
 	/* Clean AER Root Error Status */
 	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index 124f20ff11b..5194a7d4173 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -60,7 +60,7 @@ static int aer_hest_parse(struct acpi_hest_header *hest_hdr, void *data)
 	p = (struct acpi_hest_aer_common *)(hest_hdr + 1);
 	if (p->flags & ACPI_HEST_GLOBAL) {
 		if ((pci_is_pcie(info->pci_dev) &&
-		     info->pci_dev->pcie_type == pcie_type) || bridge)
+		     pci_pcie_type(info->pci_dev) == pcie_type) || bridge)
 			ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
 	} else
 		if (hest_match_pci(p, info->pci_dev))
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 0ca05353814..06bad96af41 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -32,53 +32,28 @@ static bool nosourceid;
 module_param(forceload, bool, 0);
 module_param(nosourceid, bool, 0);
 
+#define	PCI_EXP_AER_FLAGS	(PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE | \
+				 PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE)
+
 int pci_enable_pcie_error_reporting(struct pci_dev *dev)
 {
-	u16 reg16 = 0;
-	int pos;
-
 	if (pcie_aer_get_firmware_first(dev))
 		return -EIO;
 
-	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
-	if (!pos)
+	if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))
 		return -EIO;
 
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return -EIO;
-
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &reg16);
-	reg16 |= (PCI_EXP_DEVCTL_CERE |
-		PCI_EXP_DEVCTL_NFERE |
-		PCI_EXP_DEVCTL_FERE |
-		PCI_EXP_DEVCTL_URRE);
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, reg16);
-
-	return 0;
+	return pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_AER_FLAGS);
 }
 EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
 
 int pci_disable_pcie_error_reporting(struct pci_dev *dev)
 {
-	u16 reg16 = 0;
-	int pos;
-
 	if (pcie_aer_get_firmware_first(dev))
 		return -EIO;
 
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return -EIO;
-
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &reg16);
-	reg16 &= ~(PCI_EXP_DEVCTL_CERE |
-		PCI_EXP_DEVCTL_NFERE |
-		PCI_EXP_DEVCTL_FERE |
-		PCI_EXP_DEVCTL_URRE);
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, reg16);
-
-	return 0;
+	return pcie_capability_clear_word(dev, PCI_EXP_DEVCTL,
+					  PCI_EXP_AER_FLAGS);
 }
 EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
 
@@ -151,18 +126,12 @@ static bool is_error_source(struct pci_dev *dev, struct aer_err_info *e_info)
 	 */
 	if (atomic_read(&dev->enable_cnt) == 0)
 		return false;
-	pos = pci_pcie_cap(dev);
-	if (!pos)
-		return false;
 
 	/* Check if AER is enabled */
-	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &reg16);
-	if (!(reg16 & (
-		PCI_EXP_DEVCTL_CERE |
-		PCI_EXP_DEVCTL_NFERE |
-		PCI_EXP_DEVCTL_FERE |
-		PCI_EXP_DEVCTL_URRE)))
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &reg16);
+	if (!(reg16 & PCI_EXP_AER_FLAGS))
 		return false;
+
 	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 	if (!pos)
 		return false;
@@ -240,7 +209,7 @@ static bool find_source_device(struct pci_dev *parent,
 static int report_error_detected(struct pci_dev *dev, void *data)
 {
 	pci_ers_result_t vote;
-	struct pci_error_handlers *err_handler;
+	const struct pci_error_handlers *err_handler;
 	struct aer_broadcast_data *result_data;
 	result_data = (struct aer_broadcast_data *) data;
 
@@ -274,7 +243,7 @@ static int report_error_detected(struct pci_dev *dev, void *data)
 static int report_mmio_enabled(struct pci_dev *dev, void *data)
 {
 	pci_ers_result_t vote;
-	struct pci_error_handlers *err_handler;
+	const struct pci_error_handlers *err_handler;
 	struct aer_broadcast_data *result_data;
 	result_data = (struct aer_broadcast_data *) data;
 
@@ -292,7 +261,7 @@ static int report_mmio_enabled(struct pci_dev *dev, void *data)
 static int report_slot_reset(struct pci_dev *dev, void *data)
 {
 	pci_ers_result_t vote;
-	struct pci_error_handlers *err_handler;
+	const struct pci_error_handlers *err_handler;
 	struct aer_broadcast_data *result_data;
 	result_data = (struct aer_broadcast_data *) data;
 
@@ -309,7 +278,7 @@ static int report_slot_reset(struct pci_dev *dev, void *data)
 
 static int report_resume(struct pci_dev *dev, void *data)
 {
-	struct pci_error_handlers *err_handler;
+	const struct pci_error_handlers *err_handler;
 
 	dev->error_state = pci_channel_io_normal;
 
@@ -465,7 +434,7 @@ static pci_ers_result_t reset_link(struct pci_dev *dev)
 
 	if (driver && driver->reset_link) {
 		status = driver->reset_link(udev);
-	} else if (udev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM) {
+	} else if (pci_pcie_type(udev) == PCI_EXP_TYPE_DOWNSTREAM) {
 		status = default_downstream_reset_link(udev);
 	} else {
 		dev_printk(KERN_DEBUG, &dev->dev,
@@ -540,14 +509,12 @@ static void do_recovery(struct pci_dev *dev, int severity)
 				"resume",
 				report_resume);
 
-	dev_printk(KERN_DEBUG, &dev->dev,
-		"AER driver successfully recovered\n");
+	dev_info(&dev->dev, "AER: Device recovery successful\n");
 	return;
 
 failed:
 	/* TODO: Should kernel panic here? */
-	dev_printk(KERN_DEBUG, &dev->dev,
-		"AER driver didn't recover\n");
+	dev_info(&dev->dev, "AER: Device recovery failed\n");
 }
 
 /**
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index b500840a143..213753b283a 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -125,21 +125,16 @@ static int policy_to_clkpm_state(struct pcie_link_state *link)
 
 static void pcie_set_clkpm_nocheck(struct pcie_link_state *link, int enable)
 {
-	int pos;
-	u16 reg16;
 	struct pci_dev *child;
 	struct pci_bus *linkbus = link->pdev->subordinate;
 
 	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		pos = pci_pcie_cap(child);
-		if (!pos)
-			return;
-		pci_read_config_word(child, pos + PCI_EXP_LNKCTL, &reg16);
 		if (enable)
-			reg16 |= PCI_EXP_LNKCTL_CLKREQ_EN;
+			pcie_capability_set_word(child, PCI_EXP_LNKCTL,
+						 PCI_EXP_LNKCTL_CLKREQ_EN);
 		else
-			reg16 &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
-		pci_write_config_word(child, pos + PCI_EXP_LNKCTL, reg16);
+			pcie_capability_clear_word(child, PCI_EXP_LNKCTL,
+						   PCI_EXP_LNKCTL_CLKREQ_EN);
 	}
 	link->clkpm_enabled = !!enable;
 }
@@ -157,7 +152,7 @@ static void pcie_set_clkpm(struct pcie_link_state *link, int enable)
 
 static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
 {
-	int pos, capable = 1, enabled = 1;
+	int capable = 1, enabled = 1;
 	u32 reg32;
 	u16 reg16;
 	struct pci_dev *child;
@@ -165,16 +160,13 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
 
 	/* All functions should have the same cap and state, take the worst */
 	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		pos = pci_pcie_cap(child);
-		if (!pos)
-			return;
-		pci_read_config_dword(child, pos + PCI_EXP_LNKCAP, &reg32);
+		pcie_capability_read_dword(child, PCI_EXP_LNKCAP, &reg32);
 		if (!(reg32 & PCI_EXP_LNKCAP_CLKPM)) {
 			capable = 0;
 			enabled = 0;
 			break;
 		}
-		pci_read_config_word(child, pos + PCI_EXP_LNKCTL, &reg16);
+		pcie_capability_read_word(child, PCI_EXP_LNKCTL, &reg16);
 		if (!(reg16 & PCI_EXP_LNKCTL_CLKREQ_EN))
 			enabled = 0;
 	}
@@ -190,7 +182,7 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
  */
 static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
 {
-	int ppos, cpos, same_clock = 1;
+	int same_clock = 1;
 	u16 reg16, parent_reg, child_reg[8];
 	unsigned long start_jiffies;
 	struct pci_dev *child, *parent = link->pdev;
@@ -203,46 +195,43 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
 	BUG_ON(!pci_is_pcie(child));
 
 	/* Check downstream component if bit Slot Clock Configuration is 1 */
-	cpos = pci_pcie_cap(child);
-	pci_read_config_word(child, cpos + PCI_EXP_LNKSTA, &reg16);
+	pcie_capability_read_word(child, PCI_EXP_LNKSTA, &reg16);
 	if (!(reg16 & PCI_EXP_LNKSTA_SLC))
 		same_clock = 0;
 
 	/* Check upstream component if bit Slot Clock Configuration is 1 */
-	ppos = pci_pcie_cap(parent);
-	pci_read_config_word(parent, ppos + PCI_EXP_LNKSTA, &reg16);
+	pcie_capability_read_word(parent, PCI_EXP_LNKSTA, &reg16);
 	if (!(reg16 & PCI_EXP_LNKSTA_SLC))
 		same_clock = 0;
 
 	/* Configure downstream component, all functions */
 	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		cpos = pci_pcie_cap(child);
-		pci_read_config_word(child, cpos + PCI_EXP_LNKCTL, &reg16);
+		pcie_capability_read_word(child, PCI_EXP_LNKCTL, &reg16);
 		child_reg[PCI_FUNC(child->devfn)] = reg16;
 		if (same_clock)
 			reg16 |= PCI_EXP_LNKCTL_CCC;
 		else
 			reg16 &= ~PCI_EXP_LNKCTL_CCC;
-		pci_write_config_word(child, cpos + PCI_EXP_LNKCTL, reg16);
+		pcie_capability_write_word(child, PCI_EXP_LNKCTL, reg16);
 	}
 
 	/* Configure upstream component */
-	pci_read_config_word(parent, ppos + PCI_EXP_LNKCTL, &reg16);
+	pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &reg16);
 	parent_reg = reg16;
 	if (same_clock)
 		reg16 |= PCI_EXP_LNKCTL_CCC;
 	else
 		reg16 &= ~PCI_EXP_LNKCTL_CCC;
-	pci_write_config_word(parent, ppos + PCI_EXP_LNKCTL, reg16);
+	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
 
 	/* Retrain link */
 	reg16 |= PCI_EXP_LNKCTL_RL;
-	pci_write_config_word(parent, ppos + PCI_EXP_LNKCTL, reg16);
+	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
 
 	/* Wait for link training end. Break out after waiting for timeout */
 	start_jiffies = jiffies;
 	for (;;) {
-		pci_read_config_word(parent, ppos + PCI_EXP_LNKSTA, &reg16);
+		pcie_capability_read_word(parent, PCI_EXP_LNKSTA, &reg16);
 		if (!(reg16 & PCI_EXP_LNKSTA_LT))
 			break;
 		if (time_after(jiffies, start_jiffies + LINK_RETRAIN_TIMEOUT))
@@ -255,12 +244,10 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
 	/* Training failed. Restore common clock configurations */
 	dev_printk(KERN_ERR, &parent->dev,
 		   "ASPM: Could not configure common clock\n");
-	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		cpos = pci_pcie_cap(child);
-		pci_write_config_word(child, cpos + PCI_EXP_LNKCTL,
-				      child_reg[PCI_FUNC(child->devfn)]);
-	}
-	pci_write_config_word(parent, ppos + PCI_EXP_LNKCTL, parent_reg);
+	list_for_each_entry(child, &linkbus->devices, bus_list)
+		pcie_capability_write_word(child, PCI_EXP_LNKCTL,
+					   child_reg[PCI_FUNC(child->devfn)]);
+	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, parent_reg);
 }
 
 /* Convert L0s latency encoding to ns */
@@ -305,16 +292,14 @@ struct aspm_register_info {
 static void pcie_get_aspm_reg(struct pci_dev *pdev,
 			      struct aspm_register_info *info)
 {
-	int pos;
 	u16 reg16;
 	u32 reg32;
 
-	pos = pci_pcie_cap(pdev);
-	pci_read_config_dword(pdev, pos + PCI_EXP_LNKCAP, &reg32);
+	pcie_capability_read_dword(pdev, PCI_EXP_LNKCAP, &reg32);
 	info->support = (reg32 & PCI_EXP_LNKCAP_ASPMS) >> 10;
 	info->latency_encoding_l0s = (reg32 & PCI_EXP_LNKCAP_L0SEL) >> 12;
 	info->latency_encoding_l1  = (reg32 & PCI_EXP_LNKCAP_L1EL) >> 15;
-	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
+	pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &reg16);
 	info->enabled = reg16 & PCI_EXP_LNKCTL_ASPMC;
 }
 
@@ -412,7 +397,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
 	 * do ASPM for now.
 	 */
 	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		if (child->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE) {
+		if (pci_pcie_type(child) == PCI_EXP_TYPE_PCI_BRIDGE) {
 			link->aspm_disable = ASPM_STATE_ALL;
 			break;
 		}
@@ -420,17 +405,15 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
 
 	/* Get and check endpoint acceptable latencies */
 	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		int pos;
 		u32 reg32, encoding;
 		struct aspm_latency *acceptable =
 			&link->acceptable[PCI_FUNC(child->devfn)];
 
-		if (child->pcie_type != PCI_EXP_TYPE_ENDPOINT &&
-		    child->pcie_type != PCI_EXP_TYPE_LEG_END)
+		if (pci_pcie_type(child) != PCI_EXP_TYPE_ENDPOINT &&
+		    pci_pcie_type(child) != PCI_EXP_TYPE_LEG_END)
 			continue;
 
-		pos = pci_pcie_cap(child);
-		pci_read_config_dword(child, pos + PCI_EXP_DEVCAP, &reg32);
+		pcie_capability_read_dword(child, PCI_EXP_DEVCAP, &reg32);
 		/* Calculate endpoint L0s acceptable latency */
 		encoding = (reg32 & PCI_EXP_DEVCAP_L0S) >> 6;
 		acceptable->l0s = calc_l0s_acceptable(encoding);
@@ -444,13 +427,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
 
 static void pcie_config_aspm_dev(struct pci_dev *pdev, u32 val)
 {
-	u16 reg16;
-	int pos = pci_pcie_cap(pdev);
-
-	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
-	reg16 &= ~0x3;
-	reg16 |= val;
-	pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
+	pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL, 0x3, val);
 }
 
 static void pcie_config_aspm_link(struct pcie_link_state *link, u32 state)
@@ -505,7 +482,6 @@ static void free_link_state(struct pcie_link_state *link)
 static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 {
 	struct pci_dev *child;
-	int pos;
 	u32 reg32;
 
 	/*
@@ -513,8 +489,7 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 	 * very strange. Disable ASPM for the whole slot
 	 */
 	list_for_each_entry(child, &pdev->subordinate->devices, bus_list) {
-		pos = pci_pcie_cap(child);
-		if (!pos)
+		if (!pci_is_pcie(child))
 			return -EINVAL;
 
 		/*
@@ -530,7 +505,7 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 		 * Disable ASPM for pre-1.1 PCIe device, we follow MS to use
 		 * RBER bit to determine if a function is 1.1 version device
 		 */
-		pci_read_config_dword(child, pos + PCI_EXP_DEVCAP, &reg32);
+		pcie_capability_read_dword(child, PCI_EXP_DEVCAP, &reg32);
 		if (!(reg32 & PCI_EXP_DEVCAP_RBER) && !aspm_force) {
 			dev_printk(KERN_INFO, &child->dev, "disabling ASPM"
 				" on pre-1.1 PCIe device.  You can enable it"
@@ -552,7 +527,7 @@ static struct pcie_link_state *alloc_pcie_link_state(struct pci_dev *pdev)
 	INIT_LIST_HEAD(&link->children);
 	INIT_LIST_HEAD(&link->link);
 	link->pdev = pdev;
-	if (pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM) {
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_DOWNSTREAM) {
 		struct pcie_link_state *parent;
 		parent = pdev->bus->parent->self->link_state;
 		if (!parent) {
@@ -585,12 +560,12 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
 
 	if (!pci_is_pcie(pdev) || pdev->link_state)
 		return;
-	if (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
-	    pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
+	if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT &&
+	    pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM)
 		return;
 
 	/* VIA has a strange chipset, root port is under a bridge */
-	if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT &&
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT &&
 	    pdev->bus->self)
 		return;
 
@@ -647,8 +622,8 @@ static void pcie_update_aspm_capable(struct pcie_link_state *root)
 		if (link->root != root)
 			continue;
 		list_for_each_entry(child, &linkbus->devices, bus_list) {
-			if ((child->pcie_type != PCI_EXP_TYPE_ENDPOINT) &&
-			    (child->pcie_type != PCI_EXP_TYPE_LEG_END))
+			if ((pci_pcie_type(child) != PCI_EXP_TYPE_ENDPOINT) &&
+			    (pci_pcie_type(child) != PCI_EXP_TYPE_LEG_END))
 				continue;
 			pcie_aspm_check_latency(child);
 		}
@@ -663,8 +638,8 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev)
 
 	if (!pci_is_pcie(pdev) || !parent || !parent->link_state)
 		return;
-	if ((parent->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
-	    (parent->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
+	if ((pci_pcie_type(parent) != PCI_EXP_TYPE_ROOT_PORT) &&
+	    (pci_pcie_type(parent) != PCI_EXP_TYPE_DOWNSTREAM))
 		return;
 
 	down_read(&pci_bus_sem);
@@ -704,8 +679,8 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev)
 
 	if (aspm_disabled || !pci_is_pcie(pdev) || !link)
 		return;
-	if ((pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
-	    (pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
+	if ((pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) &&
+	    (pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM))
 		return;
 	/*
 	 * Devices changed PM state, we should recheck if latency
@@ -729,8 +704,8 @@ void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
 	if (aspm_policy != POLICY_POWERSAVE)
 		return;
 
-	if ((pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
-	    (pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
+	if ((pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) &&
+	    (pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM))
 		return;
 
 	down_read(&pci_bus_sem);
@@ -757,8 +732,8 @@ static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem,
 	if (!pci_is_pcie(pdev))
 		return;
 
-	if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
-	    pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT ||
+	    pci_pcie_type(pdev) == PCI_EXP_TYPE_DOWNSTREAM)
 		parent = pdev;
 	if (!parent || !parent->link_state)
 		return;
@@ -933,8 +908,8 @@ void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev)
 	struct pcie_link_state *link_state = pdev->link_state;
 
 	if (!pci_is_pcie(pdev) ||
-	    (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
-	     pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
+	    (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT &&
+	     pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
 		return;
 
 	if (link_state->aspm_support)
@@ -950,8 +925,8 @@ void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev)
 	struct pcie_link_state *link_state = pdev->link_state;
 
 	if (!pci_is_pcie(pdev) ||
-	    (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
-	     pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
+	    (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT &&
+	     pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
 		return;
 
 	if (link_state->aspm_support)
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index 001f1b78f39..9ca0dc9ffd8 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -57,17 +57,12 @@ struct pcie_pme_service_data {
  */
 void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable)
 {
-	int rtctl_pos;
-	u16 rtctl;
-
-	rtctl_pos = pci_pcie_cap(dev) + PCI_EXP_RTCTL;
-
-	pci_read_config_word(dev, rtctl_pos, &rtctl);
 	if (enable)
-		rtctl |= PCI_EXP_RTCTL_PMEIE;
+		pcie_capability_set_word(dev, PCI_EXP_RTCTL,
+					 PCI_EXP_RTCTL_PMEIE);
 	else
-		rtctl &= ~PCI_EXP_RTCTL_PMEIE;
-	pci_write_config_word(dev, rtctl_pos, rtctl);
+		pcie_capability_clear_word(dev, PCI_EXP_RTCTL,
+					   PCI_EXP_RTCTL_PMEIE);
 }
 
 /**
@@ -120,7 +115,7 @@ static bool pcie_pme_from_pci_bridge(struct pci_bus *bus, u8 devfn)
 	if (!dev)
 		return false;
 
-	if (pci_is_pcie(dev) && dev->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE) {
+	if (pci_is_pcie(dev) && pci_pcie_type(dev) == PCI_EXP_TYPE_PCI_BRIDGE) {
 		down_read(&pci_bus_sem);
 		if (pcie_pme_walk_bus(bus))
 			found = true;
@@ -226,18 +221,15 @@ static void pcie_pme_work_fn(struct work_struct *work)
 	struct pcie_pme_service_data *data =
 			container_of(work, struct pcie_pme_service_data, work);
 	struct pci_dev *port = data->srv->port;
-	int rtsta_pos;
 	u32 rtsta;
 
-	rtsta_pos = pci_pcie_cap(port) + PCI_EXP_RTSTA;
-
 	spin_lock_irq(&data->lock);
 
 	for (;;) {
 		if (data->noirq)
 			break;
 
-		pci_read_config_dword(port, rtsta_pos, &rtsta);
+		pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta);
 		if (rtsta & PCI_EXP_RTSTA_PME) {
 			/*
 			 * Clear PME status of the port.  If there are other
@@ -276,17 +268,14 @@ static irqreturn_t pcie_pme_irq(int irq, void *context)
 {
 	struct pci_dev *port;
 	struct pcie_pme_service_data *data;
-	int rtsta_pos;
 	u32 rtsta;
 	unsigned long flags;
 
 	port = ((struct pcie_device *)context)->port;
 	data = get_service_data((struct pcie_device *)context);
 
-	rtsta_pos = pci_pcie_cap(port) + PCI_EXP_RTSTA;
-
 	spin_lock_irqsave(&data->lock, flags);
-	pci_read_config_dword(port, rtsta_pos, &rtsta);
+	pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta);
 
 	if (!(rtsta & PCI_EXP_RTSTA_PME)) {
 		spin_unlock_irqrestore(&data->lock, flags);
@@ -335,13 +324,13 @@ static void pcie_pme_mark_devices(struct pci_dev *port)
 		struct pci_dev *dev;
 
 		/* Check if this is a root port event collector. */
-		if (port->pcie_type != PCI_EXP_TYPE_RC_EC || !bus)
+		if (pci_pcie_type(port) != PCI_EXP_TYPE_RC_EC || !bus)
 			return;
 
 		down_read(&pci_bus_sem);
 		list_for_each_entry(dev, &bus->devices, bus_list)
 			if (pci_is_pcie(dev)
-			    && dev->pcie_type == PCI_EXP_TYPE_RC_END)
+			    && pci_pcie_type(dev) == PCI_EXP_TYPE_RC_END)
 				pcie_pme_set_native(dev, NULL);
 		up_read(&pci_bus_sem);
 	}
diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c
index 18bf90f748f..67be55a7f26 100644
--- a/drivers/pci/pcie/portdrv_bus.c
+++ b/drivers/pci/pcie/portdrv_bus.c
@@ -38,7 +38,7 @@ static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
 		return 0;
 
 	if ((driver->port_type != PCIE_ANY_PORT) &&
-	    (driver->port_type != pciedev->port->pcie_type))
+	    (driver->port_type != pci_pcie_type(pciedev->port)))
 		return 0;
 
 	return 1;
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 75915b30ad1..d03a7a39b2d 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -200,10 +200,13 @@ static int init_service_irqs(struct pci_dev *dev, int *irqs, int mask)
 {
 	int i, irq = -1;
 
-	/* We have to use INTx if MSI cannot be used for PCIe PME or pciehp. */
+	/*
+	 * If MSI cannot be used for PCIe PME or hotplug, we have to use
+	 * INTx or other interrupts, e.g. system shared interrupt.
+	 */
 	if (((mask & PCIE_PORT_SERVICE_PME) && pcie_pme_no_msi()) ||
 	    ((mask & PCIE_PORT_SERVICE_HP) && pciehp_no_msi())) {
-		if (dev->pin)
+		if (dev->irq)
 			irq = dev->irq;
 		goto no_msi;
 	}
@@ -212,8 +215,12 @@ static int init_service_irqs(struct pci_dev *dev, int *irqs, int mask)
 	if (!pcie_port_enable_msix(dev, irqs, mask))
 		return 0;
 
-	/* We're not going to use MSI-X, so try MSI and fall back to INTx */
-	if (!pci_enable_msi(dev) || dev->pin)
+	/*
+	 * We're not going to use MSI-X, so try MSI and fall back to INTx.
+	 * If neither MSI/MSI-X nor INTx available, try other interrupt.  On
+	 * some platforms, root port doesn't support MSI/MSI-X/INTx in RC mode.
+	 */
+	if (!pci_enable_msi(dev) || dev->irq)
 		irq = dev->irq;
 
  no_msi:
@@ -246,8 +253,7 @@ static void cleanup_service_irqs(struct pci_dev *dev)
  */
 static int get_port_device_capability(struct pci_dev *dev)
 {
-	int services = 0, pos;
-	u16 reg16;
+	int services = 0;
 	u32 reg32;
 	int cap_mask = 0;
 	int err;
@@ -265,11 +271,9 @@ static int get_port_device_capability(struct pci_dev *dev)
 			return 0;
 	}
 
-	pos = pci_pcie_cap(dev);
-	pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &reg16);
 	/* Hot-Plug Capable */
-	if ((cap_mask & PCIE_PORT_SERVICE_HP) && (reg16 & PCI_EXP_FLAGS_SLOT)) {
-		pci_read_config_dword(dev, pos + PCI_EXP_SLTCAP, &reg32);
+	if (cap_mask & PCIE_PORT_SERVICE_HP) {
+		pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, &reg32);
 		if (reg32 & PCI_EXP_SLTCAP_HPC) {
 			services |= PCIE_PORT_SERVICE_HP;
 			/*
@@ -277,10 +281,8 @@ static int get_port_device_capability(struct pci_dev *dev)
 			 * enabled by the BIOS and the hot-plug service driver
 			 * is not loaded.
 			 */
-			pos += PCI_EXP_SLTCTL;
-			pci_read_config_word(dev, pos, &reg16);
-			reg16 &= ~(PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE);
-			pci_write_config_word(dev, pos, reg16);
+			pcie_capability_clear_word(dev, PCI_EXP_SLTCTL,
+				PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE);
 		}
 	}
 	/* AER capable */
@@ -298,7 +300,7 @@ static int get_port_device_capability(struct pci_dev *dev)
 		services |= PCIE_PORT_SERVICE_VC;
 	/* Root ports are capable of generating PME too */
 	if ((cap_mask & PCIE_PORT_SERVICE_PME)
-	    && dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) {
+	    && pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) {
 		services |= PCIE_PORT_SERVICE_PME;
 		/*
 		 * Disable PME interrupt on this port in case it's been enabled
@@ -336,7 +338,7 @@ static int pcie_device_init(struct pci_dev *pdev, int service, int irq)
 	device->release = release_pcie_device;	/* callback to free pcie dev */
 	dev_set_name(device, "%s:pcie%02x",
 		     pci_name(pdev),
-		     get_descriptor_id(pdev->pcie_type, service));
+		     get_descriptor_id(pci_pcie_type(pdev), service));
 	device->parent = &pdev->dev;
 	device_enable_async_suspend(device);
 
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 3a7eefcb270..0761d90ca27 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -64,14 +64,7 @@ __setup("pcie_ports=", pcie_port_setup);
  */
 void pcie_clear_root_pme_status(struct pci_dev *dev)
 {
-	int rtsta_pos;
-	u32 rtsta;
-
-	rtsta_pos = pci_pcie_cap(dev) + PCI_EXP_RTSTA;
-
-	pci_read_config_dword(dev, rtsta_pos, &rtsta);
-	rtsta |= PCI_EXP_RTSTA_PME;
-	pci_write_config_dword(dev, rtsta_pos, rtsta);
+	pcie_capability_set_dword(dev, PCI_EXP_RTSTA, PCI_EXP_RTSTA_PME);
 }
 
 static int pcie_portdrv_restore_config(struct pci_dev *dev)
@@ -95,7 +88,7 @@ static int pcie_port_resume_noirq(struct device *dev)
 	 * which breaks ACPI-based runtime wakeup on PCI Express, so clear those
 	 * bits now just in case (shouldn't hurt).
 	 */
-	if(pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT)
 		pcie_clear_root_pme_status(pdev);
 	return 0;
 }
@@ -140,9 +133,17 @@ static int pcie_port_runtime_resume(struct device *dev)
 {
 	return 0;
 }
+
+static int pcie_port_runtime_idle(struct device *dev)
+{
+	/* Delay for a short while to prevent too frequent suspend/resume */
+	pm_schedule_suspend(dev, 10);
+	return -EBUSY;
+}
 #else
 #define pcie_port_runtime_suspend	NULL
 #define pcie_port_runtime_resume	NULL
+#define pcie_port_runtime_idle		NULL
 #endif
 
 static const struct dev_pm_ops pcie_portdrv_pm_ops = {
@@ -155,6 +156,7 @@ static const struct dev_pm_ops pcie_portdrv_pm_ops = {
 	.resume_noirq	= pcie_port_resume_noirq,
 	.runtime_suspend = pcie_port_runtime_suspend,
 	.runtime_resume = pcie_port_runtime_resume,
+	.runtime_idle	= pcie_port_runtime_idle,
 };
 
 #define PCIE_PORTDRV_PM_OPS	(&pcie_portdrv_pm_ops)
@@ -186,9 +188,9 @@ static int __devinit pcie_portdrv_probe(struct pci_dev *dev,
 	int status;
 
 	if (!pci_is_pcie(dev) ||
-	    ((dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
-	     (dev->pcie_type != PCI_EXP_TYPE_UPSTREAM) &&
-	     (dev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)))
+	    ((pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT) &&
+	     (pci_pcie_type(dev) != PCI_EXP_TYPE_UPSTREAM) &&
+	     (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM)))
 		return -ENODEV;
 
 	if (!dev->irq && dev->pin) {
@@ -200,6 +202,11 @@ static int __devinit pcie_portdrv_probe(struct pci_dev *dev,
 		return status;
 
 	pci_save_state(dev);
+	/*
+	 * D3cold may not work properly on some PCIe port, so disable
+	 * it by default.
+	 */
+	dev->d3cold_allowed = false;
 	if (!pci_match_id(port_runtime_pm_black_list, dev))
 		pm_runtime_put_noidle(&dev->dev);
 
@@ -371,11 +378,11 @@ static const struct pci_device_id port_pci_ids[] = { {
 };
 MODULE_DEVICE_TABLE(pci, port_pci_ids);
 
-static struct pci_error_handlers pcie_portdrv_err_handler = {
-		.error_detected = pcie_portdrv_error_detected,
-		.mmio_enabled = pcie_portdrv_mmio_enabled,
-		.slot_reset = pcie_portdrv_slot_reset,
-		.resume = pcie_portdrv_err_resume,
+static const struct pci_error_handlers pcie_portdrv_err_handler = {
+	.error_detected = pcie_portdrv_error_detected,
+	.mmio_enabled = pcie_portdrv_mmio_enabled,
+	.slot_reset = pcie_portdrv_slot_reset,
+	.resume = pcie_portdrv_err_resume,
 };
 
 static struct pci_driver pcie_portdriver = {
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 6c143b4497c..ec909afa90b 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -144,15 +144,13 @@ static inline unsigned long decode_bar(struct pci_dev *dev, u32 bar)
 	case PCI_BASE_ADDRESS_MEM_TYPE_32:
 		break;
 	case PCI_BASE_ADDRESS_MEM_TYPE_1M:
-		dev_info(&dev->dev, "1M mem BAR treated as 32-bit BAR\n");
+		/* 1M mem BAR treated as 32-bit BAR */
 		break;
 	case PCI_BASE_ADDRESS_MEM_TYPE_64:
 		flags |= IORESOURCE_MEM_64;
 		break;
 	default:
-		dev_warn(&dev->dev,
-			 "mem unknown type %x treated as 32-bit BAR\n",
-			 mem_type);
+		/* mem unknown type treated as 32-bit BAR */
 		break;
 	}
 	return flags;
@@ -173,9 +171,11 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 	u32 l, sz, mask;
 	u16 orig_cmd;
 	struct pci_bus_region region;
+	bool bar_too_big = false, bar_disabled = false;
 
 	mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
 
+	/* No printks while decoding is disabled! */
 	if (!dev->mmio_always_on) {
 		pci_read_config_word(dev, PCI_COMMAND, &orig_cmd);
 		pci_write_config_word(dev, PCI_COMMAND,
@@ -240,8 +240,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 			goto fail;
 
 		if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) {
-			dev_err(&dev->dev, "reg %x: can't handle 64-bit BAR\n",
-				pos);
+			bar_too_big = true;
 			goto fail;
 		}
 
@@ -252,12 +251,11 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 			region.start = 0;
 			region.end = sz64;
 			pcibios_bus_to_resource(dev, res, &region);
+			bar_disabled = true;
 		} else {
 			region.start = l64;
 			region.end = l64 + sz64;
 			pcibios_bus_to_resource(dev, res, &region);
-			dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n",
-				   pos, res);
 		}
 	} else {
 		sz = pci_size(l, sz, mask);
@@ -268,18 +266,23 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		region.start = l;
 		region.end = l + sz;
 		pcibios_bus_to_resource(dev, res, &region);
-
-		dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res);
 	}
 
- out:
+	goto out;
+
+
+fail:
+	res->flags = 0;
+out:
 	if (!dev->mmio_always_on)
 		pci_write_config_word(dev, PCI_COMMAND, orig_cmd);
 
+	if (bar_too_big)
+		dev_err(&dev->dev, "reg %x: can't handle 64-bit BAR\n", pos);
+	if (res->flags && !bar_disabled)
+		dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res);
+
 	return (res->flags & IORESOURCE_MEM_64) ? 1 : 0;
- fail:
-	res->flags = 0;
-	goto out;
 }
 
 static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
@@ -603,10 +606,10 @@ static void pci_set_bus_speed(struct pci_bus *bus)
 		u32 linkcap;
 		u16 linksta;
 
-		pci_read_config_dword(bridge, pos + PCI_EXP_LNKCAP, &linkcap);
+		pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap);
 		bus->max_bus_speed = pcie_link_speed[linkcap & 0xf];
 
-		pci_read_config_word(bridge, pos + PCI_EXP_LNKSTA, &linksta);
+		pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta);
 		pcie_update_link_speed(bus, linksta);
 	}
 }
@@ -726,8 +729,10 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
 
 	/* Check if setup is sensible at all */
 	if (!pass &&
-	    (primary != bus->number || secondary <= bus->number)) {
-		dev_dbg(&dev->dev, "bus configuration invalid, reconfiguring\n");
+	    (primary != bus->number || secondary <= bus->number ||
+	     secondary > subordinate)) {
+		dev_info(&dev->dev, "bridge configuration invalid ([bus %02x-%02x]), reconfiguring\n",
+			 secondary, subordinate);
 		broken = 1;
 	}
 
@@ -929,24 +934,16 @@ void set_pcie_port_type(struct pci_dev *pdev)
 	pdev->is_pcie = 1;
 	pdev->pcie_cap = pos;
 	pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
-	pdev->pcie_type = (reg16 & PCI_EXP_FLAGS_TYPE) >> 4;
+	pdev->pcie_flags_reg = reg16;
 	pci_read_config_word(pdev, pos + PCI_EXP_DEVCAP, &reg16);
 	pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD;
 }
 
 void set_pcie_hotplug_bridge(struct pci_dev *pdev)
 {
-	int pos;
-	u16 reg16;
 	u32 reg32;
 
-	pos = pci_pcie_cap(pdev);
-	if (!pos)
-		return;
-	pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
-	if (!(reg16 & PCI_EXP_FLAGS_SLOT))
-		return;
-	pci_read_config_dword(pdev, pos + PCI_EXP_SLTCAP, &reg32);
+	pcie_capability_read_dword(pdev, PCI_EXP_SLTCAP, &reg32);
 	if (reg32 & PCI_EXP_SLTCAP_HPC)
 		pdev->is_hotplug_bridge = 1;
 }
@@ -1160,8 +1157,7 @@ int pci_cfg_space_size(struct pci_dev *dev)
 	if (class == PCI_CLASS_BRIDGE_HOST)
 		return pci_cfg_space_size_ext(dev);
 
-	pos = pci_pcie_cap(dev);
-	if (!pos) {
+	if (!pci_is_pcie(dev)) {
 		pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
 		if (!pos)
 			goto fail;
@@ -1383,9 +1379,9 @@ static int only_one_child(struct pci_bus *bus)
 
 	if (!parent || !pci_is_pcie(parent))
 		return 0;
-	if (parent->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
+	if (pci_pcie_type(parent) == PCI_EXP_TYPE_ROOT_PORT)
 		return 1;
-	if (parent->pcie_type == PCI_EXP_TYPE_DOWNSTREAM &&
+	if (pci_pcie_type(parent) == PCI_EXP_TYPE_DOWNSTREAM &&
 	    !pci_has_flag(PCI_SCAN_ALL_PCIE_DEVS))
 		return 1;
 	return 0;
@@ -1462,7 +1458,7 @@ static int pcie_find_smpss(struct pci_dev *dev, void *data)
 	 */
 	if (dev->is_hotplug_bridge && (!list_is_singular(&dev->bus->devices) ||
 	     (dev->bus->self &&
-	      dev->bus->self->pcie_type != PCI_EXP_TYPE_ROOT_PORT)))
+	      pci_pcie_type(dev->bus->self) != PCI_EXP_TYPE_ROOT_PORT)))
 		*smpss = 0;
 
 	if (*smpss > dev->pcie_mpss)
@@ -1478,7 +1474,8 @@ static void pcie_write_mps(struct pci_dev *dev, int mps)
 	if (pcie_bus_config == PCIE_BUS_PERFORMANCE) {
 		mps = 128 << dev->pcie_mpss;
 
-		if (dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT && dev->bus->self)
+		if (pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT &&
+		    dev->bus->self)
 			/* For "Performance", the assumption is made that
 			 * downstream communication will never be larger than
 			 * the MRRS.  So, the MPS only needs to be configured
@@ -1753,11 +1750,6 @@ int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max)
 			   "busn_res: can not insert %pR under %s%pR (conflicts with %s %pR)\n",
 			    res, pci_is_root_bus(b) ? "domain " : "",
 			    parent_res, conflict->name, conflict);
-	else
-		dev_printk(KERN_DEBUG, &b->dev,
-			   "busn_res: %pR is inserted under %s%pR\n",
-			   res, pci_is_root_bus(b) ? "domain " : "",
-			   parent_res);
 
 	return conflict == NULL;
 }
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 27911b55c2a..eb907a8faf2 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -434,25 +434,6 @@ int pci_proc_detach_device(struct pci_dev *dev)
 	return 0;
 }
 
-#if 0
-int pci_proc_attach_bus(struct pci_bus* bus)
-{
-	struct proc_dir_entry *de = bus->procdir;
-
-	if (!proc_initialized)
-		return -EACCES;
-
-	if (!de) {
-		char name[16];
-		sprintf(name, "%02x", bus->number);
-		de = bus->procdir = proc_mkdir(name, proc_bus_pci_dir);
-		if (!de)
-			return -ENOMEM;
-	}
-	return 0;
-}
-#endif  /*  0  */
-
 int pci_proc_detach_bus(struct pci_bus* bus)
 {
 	struct proc_dir_entry *de = bus->procdir;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 51553179e96..7a451ff56ec 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3081,17 +3081,36 @@ static int reset_intel_generic_dev(struct pci_dev *dev, int probe)
 
 static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe)
 {
-	int pos;
+	int i;
+	u16 status;
 
-	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
-	if (!pos)
-		return -ENOTTY;
+	/*
+	 * http://www.intel.com/content/dam/doc/datasheet/82599-10-gbe-controller-datasheet.pdf
+	 *
+	 * The 82599 supports FLR on VFs, but FLR support is reported only
+	 * in the PF DEVCAP (sec 9.3.10.4), not in the VF DEVCAP (sec 9.5).
+	 * Therefore, we can't use pcie_flr(), which checks the VF DEVCAP.
+	 */
 
 	if (probe)
 		return 0;
 
-	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL,
-				PCI_EXP_DEVCTL_BCR_FLR);
+	/* Wait for Transaction Pending bit clean */
+	for (i = 0; i < 4; i++) {
+		if (i)
+			msleep((1 << (i - 1)) * 100);
+
+		pcie_capability_read_word(dev, PCI_EXP_DEVSTA, &status);
+		if (!(status & PCI_EXP_DEVSTA_TRPND))
+			goto clear;
+	}
+
+	dev_err(&dev->dev, "transaction is not cleared; "
+			"proceeding with reset anyway\n");
+
+clear:
+	pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR);
+
 	msleep(100);
 
 	return 0;
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 04a4861b474..513972f3ed1 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -32,152 +32,82 @@ static void pci_stop_dev(struct pci_dev *dev)
 
 static void pci_destroy_dev(struct pci_dev *dev)
 {
-	/* Remove the device from the device lists, and prevent any further
-	 * list accesses from this device */
 	down_write(&pci_bus_sem);
 	list_del(&dev->bus_list);
-	dev->bus_list.next = dev->bus_list.prev = NULL;
 	up_write(&pci_bus_sem);
 
 	pci_free_resources(dev);
 	pci_dev_put(dev);
 }
 
-/**
- * pci_remove_device_safe - remove an unused hotplug device
- * @dev: the device to remove
- *
- * Delete the device structure from the device lists and 
- * notify userspace (/sbin/hotplug), but only if the device
- * in question is not being used by a driver.
- * Returns 0 on success.
- */
-#if 0
-int pci_remove_device_safe(struct pci_dev *dev)
-{
-	if (pci_dev_driver(dev))
-		return -EBUSY;
-	pci_destroy_dev(dev);
-	return 0;
-}
-#endif  /*  0  */
-
-void pci_remove_bus(struct pci_bus *pci_bus)
+void pci_remove_bus(struct pci_bus *bus)
 {
-	pci_proc_detach_bus(pci_bus);
+	pci_proc_detach_bus(bus);
 
 	down_write(&pci_bus_sem);
-	list_del(&pci_bus->node);
-	pci_bus_release_busn_res(pci_bus);
+	list_del(&bus->node);
+	pci_bus_release_busn_res(bus);
 	up_write(&pci_bus_sem);
-	if (!pci_bus->is_added)
+	if (!bus->is_added)
 		return;
 
-	pci_remove_legacy_files(pci_bus);
-	device_unregister(&pci_bus->dev);
+	pci_remove_legacy_files(bus);
+	device_unregister(&bus->dev);
 }
 EXPORT_SYMBOL(pci_remove_bus);
 
-static void __pci_remove_behind_bridge(struct pci_dev *dev);
-/**
- * pci_stop_and_remove_bus_device - remove a PCI device and any children
- * @dev: the device to remove
- *
- * Remove a PCI device from the device lists, informing the drivers
- * that the device has been removed.  We also remove any subordinate
- * buses and children in a depth-first manner.
- *
- * For each device we remove, delete the device structure from the
- * device lists, remove the /proc entry, and notify userspace
- * (/sbin/hotplug).
- */
-void __pci_remove_bus_device(struct pci_dev *dev)
+static void pci_stop_bus_device(struct pci_dev *dev)
 {
-	if (dev->subordinate) {
-		struct pci_bus *b = dev->subordinate;
+	struct pci_bus *bus = dev->subordinate;
+	struct pci_dev *child, *tmp;
 
-		__pci_remove_behind_bridge(dev);
-		pci_remove_bus(b);
-		dev->subordinate = NULL;
+	/*
+	 * Stopping an SR-IOV PF device removes all the associated VFs,
+	 * which will update the bus->devices list and confuse the
+	 * iterator.  Therefore, iterate in reverse so we remove the VFs
+	 * first, then the PF.
+	 */
+	if (bus) {
+		list_for_each_entry_safe_reverse(child, tmp,
+						 &bus->devices, bus_list)
+			pci_stop_bus_device(child);
 	}
 
-	pci_destroy_dev(dev);
-}
-EXPORT_SYMBOL(__pci_remove_bus_device);
-
-void pci_stop_and_remove_bus_device(struct pci_dev *dev)
-{
-	pci_stop_bus_device(dev);
-	__pci_remove_bus_device(dev);
+	pci_stop_dev(dev);
 }
 
-static void __pci_remove_behind_bridge(struct pci_dev *dev)
+static void pci_remove_bus_device(struct pci_dev *dev)
 {
-	struct list_head *l, *n;
+	struct pci_bus *bus = dev->subordinate;
+	struct pci_dev *child, *tmp;
 
-	if (dev->subordinate)
-		list_for_each_safe(l, n, &dev->subordinate->devices)
-			__pci_remove_bus_device(pci_dev_b(l));
-}
+	if (bus) {
+		list_for_each_entry_safe(child, tmp,
+					 &bus->devices, bus_list)
+			pci_remove_bus_device(child);
 
-static void pci_stop_behind_bridge(struct pci_dev *dev)
-{
-	struct list_head *l, *n;
+		pci_remove_bus(bus);
+		dev->subordinate = NULL;
+	}
 
-	if (dev->subordinate)
-		list_for_each_safe(l, n, &dev->subordinate->devices)
-			pci_stop_bus_device(pci_dev_b(l));
+	pci_destroy_dev(dev);
 }
 
 /**
- * pci_stop_and_remove_behind_bridge - stop and remove all devices behind
- *					 a PCI bridge
- * @dev: PCI bridge device
+ * pci_stop_and_remove_bus_device - remove a PCI device and any children
+ * @dev: the device to remove
  *
- * Remove all devices on the bus, except for the parent bridge.
- * This also removes any child buses, and any devices they may
- * contain in a depth-first manner.
- */
-void pci_stop_and_remove_behind_bridge(struct pci_dev *dev)
-{
-	pci_stop_behind_bridge(dev);
-	__pci_remove_behind_bridge(dev);
-}
-
-static void pci_stop_bus_devices(struct pci_bus *bus)
-{
-	struct list_head *l, *n;
-
-	/*
-	 * VFs could be removed by pci_stop_and_remove_bus_device() in the
-	 *  pci_stop_bus_devices() code path for PF.
-	 *  aka, bus->devices get updated in the process.
-	 * but VFs are inserted after PFs when SRIOV is enabled for PF,
-	 * We can iterate the list backwards to get prev valid PF instead
-	 *  of removed VF.
-	 */
-	list_for_each_prev_safe(l, n, &bus->devices) {
-		struct pci_dev *dev = pci_dev_b(l);
-		pci_stop_bus_device(dev);
-	}
-}
-
-/**
- * pci_stop_bus_device - stop a PCI device and any children
- * @dev: the device to stop
+ * Remove a PCI device from the device lists, informing the drivers
+ * that the device has been removed.  We also remove any subordinate
+ * buses and children in a depth-first manner.
  *
- * Stop a PCI device (detach the driver, remove from the global list
- * and so on). This also stop any subordinate buses and children in a
- * depth-first manner.
+ * For each device we remove, delete the device structure from the
+ * device lists, remove the /proc entry, and notify userspace
+ * (/sbin/hotplug).
  */
-void pci_stop_bus_device(struct pci_dev *dev)
+void pci_stop_and_remove_bus_device(struct pci_dev *dev)
 {
-	if (dev->subordinate)
-		pci_stop_bus_devices(dev->subordinate);
-
-	pci_stop_dev(dev);
+	pci_stop_bus_device(dev);
+	pci_remove_bus_device(dev);
 }
-
 EXPORT_SYMBOL(pci_stop_and_remove_bus_device);
-EXPORT_SYMBOL(pci_stop_and_remove_behind_bridge);
-EXPORT_SYMBOL_GPL(pci_stop_bus_device);
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 48ebdb237f3..0b3037ab8b9 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -167,44 +167,6 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
 	return rom;
 }
 
-#if 0
-/**
- * pci_map_rom_copy - map a PCI ROM to kernel space, create a copy
- * @pdev: pointer to pci device struct
- * @size: pointer to receive size of pci window over ROM
- *
- * Return: kernel virtual pointer to image of ROM
- *
- * Map a PCI ROM into kernel space. If ROM is boot video ROM,
- * the shadow BIOS copy will be returned instead of the
- * actual ROM.
- */
-void __iomem *pci_map_rom_copy(struct pci_dev *pdev, size_t *size)
-{
-	struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];
-	void __iomem *rom;
-
-	rom = pci_map_rom(pdev, size);
-	if (!rom)
-		return NULL;
-
-	if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_SHADOW |
-			  IORESOURCE_ROM_BIOS_COPY))
-		return rom;
-
-	res->start = (unsigned long)kmalloc(*size, GFP_KERNEL);
-	if (!res->start)
-		return rom;
-
-	res->end = res->start + *size;
-	memcpy_fromio((void*)(unsigned long)res->start, rom, *size);
-	pci_unmap_rom(pdev, rom);
-	res->flags |= IORESOURCE_ROM_COPY;
-
-	return (void __iomem *)(unsigned long)res->start;
-}
-#endif  /*  0  */
-
 /**
  * pci_unmap_rom - unmap the ROM from kernel space
  * @pdev: pointer to pci device struct
@@ -226,27 +188,6 @@ void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom)
 		pci_disable_rom(pdev);
 }
 
-#if 0
-/**
- * pci_remove_rom - disable the ROM and remove its sysfs attribute
- * @pdev: pointer to pci device struct
- *
- * Remove the rom file in sysfs and disable ROM decoding.
- */
-void pci_remove_rom(struct pci_dev *pdev)
-{
-	struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];
-
-	if (pci_resource_len(pdev, PCI_ROM_RESOURCE))
-		sysfs_remove_bin_file(&pdev->dev.kobj, pdev->rom_attr);
-	if (!(res->flags & (IORESOURCE_ROM_ENABLE |
-			    IORESOURCE_ROM_SHADOW |
-			    IORESOURCE_ROM_BIOS_COPY |
-			    IORESOURCE_ROM_COPY)))
-		pci_disable_rom(pdev);
-}
-#endif  /*  0  */
-
 /**
  * pci_cleanup_rom - free the ROM copy created by pci_map_rom_copy
  * @pdev: pointer to pci device struct
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 993d4a0a246..bf969ba58e5 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -41,7 +41,7 @@ pci_find_upstream_pcie_bridge(struct pci_dev *pdev)
 			continue;
 		}
 		/* PCI device should connect to a PCIe bridge */
-		if (pdev->pcie_type != PCI_EXP_TYPE_PCI_BRIDGE) {
+		if (pci_pcie_type(pdev) != PCI_EXP_TYPE_PCI_BRIDGE) {
 			/* Busted hardware? */
 			WARN_ON_ONCE(1);
 			return NULL;
@@ -130,16 +130,14 @@ pci_find_next_bus(const struct pci_bus *from)
  * decrement the reference count by calling pci_dev_put().
  * If no device is found, %NULL is returned.
  */
-struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
+struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn)
 {
-	struct list_head *tmp;
 	struct pci_dev *dev;
 
 	WARN_ON(in_interrupt());
 	down_read(&pci_bus_sem);
 
-	list_for_each(tmp, &bus->devices) {
-		dev = pci_dev_b(tmp);
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		if (dev->devfn == devfn)
 			goto out;
 	}
@@ -245,30 +243,14 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
 			       unsigned int ss_vendor, unsigned int ss_device,
 			       struct pci_dev *from)
 {
-	struct pci_dev *pdev;
-	struct pci_device_id *id;
-
-	/*
-	 * pci_find_subsys() can be called on the ide_setup() path,
-	 * super-early in boot.  But the down_read() will enable local
-	 * interrupts, which can cause some machines to crash.  So here we
-	 * detect and flag that situation and bail out early.
-	 */
-	if (unlikely(no_pci_devices()))
-		return NULL;
-
-	id = kzalloc(sizeof(*id), GFP_KERNEL);
-	if (!id)
-		return NULL;
-	id->vendor = vendor;
-	id->device = device;
-	id->subvendor = ss_vendor;
-	id->subdevice = ss_device;
-
-	pdev = pci_get_dev_by_id(id, from);
-	kfree(id);
-
-	return pdev;
+	struct pci_device_id id = {
+		.vendor = vendor,
+		.device = device,
+		.subvendor = ss_vendor,
+		.subdevice = ss_device,
+	};
+
+	return pci_get_dev_by_id(&id, from);
 }
 
 /**
@@ -307,19 +289,16 @@ pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from)
  */
 struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
 {
-	struct pci_dev *dev;
-	struct pci_device_id *id;
-
-	id = kzalloc(sizeof(*id), GFP_KERNEL);
-	if (!id)
-		return NULL;
-	id->vendor = id->device = id->subvendor = id->subdevice = PCI_ANY_ID;
-	id->class_mask = PCI_ANY_ID;
-	id->class = class;
-
-	dev = pci_get_dev_by_id(id, from);
-	kfree(id);
-	return dev;
+	struct pci_device_id id = {
+		.vendor = PCI_ANY_ID,
+		.device = PCI_ANY_ID,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.class_mask = PCI_ANY_ID,
+		.class = class,
+	};
+
+	return pci_get_dev_by_id(&id, from);
 }
 
 /**
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index fb506137aae..1e808ca338f 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -697,6 +697,38 @@ static resource_size_t calculate_memsize(resource_size_t size,
 	return size;
 }
 
+resource_size_t __weak pcibios_window_alignment(struct pci_bus *bus,
+						unsigned long type)
+{
+	return 1;
+}
+
+#define PCI_P2P_DEFAULT_MEM_ALIGN	0x100000	/* 1MiB */
+#define PCI_P2P_DEFAULT_IO_ALIGN	0x1000		/* 4KiB */
+#define PCI_P2P_DEFAULT_IO_ALIGN_1K	0x400		/* 1KiB */
+
+static resource_size_t window_alignment(struct pci_bus *bus,
+					unsigned long type)
+{
+	resource_size_t align = 1, arch_align;
+
+	if (type & IORESOURCE_MEM)
+		align = PCI_P2P_DEFAULT_MEM_ALIGN;
+	else if (type & IORESOURCE_IO) {
+		/*
+		 * Per spec, I/O windows are 4K-aligned, but some
+		 * bridges have an extension to support 1K alignment.
+		 */
+		if (bus->self->io_window_1k)
+			align = PCI_P2P_DEFAULT_IO_ALIGN_1K;
+		else
+			align = PCI_P2P_DEFAULT_IO_ALIGN;
+	}
+
+	arch_align = pcibios_window_alignment(bus, type);
+	return max(align, arch_align);
+}
+
 /**
  * pbus_size_io() - size the io window of a given bus
  *
@@ -717,17 +749,12 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
 	struct resource *b_res = find_free_bus_resource(bus, IORESOURCE_IO);
 	unsigned long size = 0, size0 = 0, size1 = 0;
 	resource_size_t children_add_size = 0;
-	resource_size_t min_align = 4096, align;
+	resource_size_t min_align, io_align, align;
 
 	if (!b_res)
  		return;
 
-	/*
-	 * Per spec, I/O windows are 4K-aligned, but some bridges have an
-	 * extension to support 1K alignment.
-	 */
-	if (bus->self->io_window_1k)
-		min_align = 1024;
+	io_align = min_align = window_alignment(bus, IORESOURCE_IO);
 	list_for_each_entry(dev, &bus->devices, bus_list) {
 		int i;
 
@@ -754,8 +781,8 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
 		}
 	}
 
-	if (min_align > 4096)
-		min_align = 4096;
+	if (min_align > io_align)
+		min_align = io_align;
 
 	size0 = calculate_iosize(size, min_size, size1,
 			resource_size(b_res), min_align);
@@ -785,6 +812,28 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
 	}
 }
 
+static inline resource_size_t calculate_mem_align(resource_size_t *aligns,
+						  int max_order)
+{
+	resource_size_t align = 0;
+	resource_size_t min_align = 0;
+	int order;
+
+	for (order = 0; order <= max_order; order++) {
+		resource_size_t align1 = 1;
+
+		align1 <<= (order + 20);
+
+		if (!align)
+			min_align = align1;
+		else if (ALIGN(align + min_align, min_align) < align1)
+			min_align = align1 >> 1;
+		align += aligns[order];
+	}
+
+	return min_align;
+}
+
 /**
  * pbus_size_mem() - size the memory window of a given bus
  *
@@ -864,19 +913,9 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
 				children_add_size += get_res_add_size(realloc_head, r);
 		}
 	}
-	align = 0;
-	min_align = 0;
-	for (order = 0; order <= max_order; order++) {
-		resource_size_t align1 = 1;
 
-		align1 <<= (order + 20);
-
-		if (!align)
-			min_align = align1;
-		else if (ALIGN(align + min_align, min_align) < align1)
-			min_align = align1 >> 1;
-		align += aligns[order];
-	}
+	min_align = calculate_mem_align(aligns, max_order);
+	min_align = max(min_align, window_alignment(bus, b_res->flags & mask));
 	size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align);
 	if (children_add_size > add_size)
 		add_size = children_add_size;
diff --git a/drivers/pci/setup-irq.c b/drivers/pci/setup-irq.c
index eb219a1d16f..9bd6864ec5d 100644
--- a/drivers/pci/setup-irq.c
+++ b/drivers/pci/setup-irq.c
@@ -17,8 +17,13 @@
 #include <linux/ioport.h>
 #include <linux/cache.h>
 
+void __weak pcibios_update_irq(struct pci_dev *dev, int irq)
+{
+	dev_dbg(&dev->dev, "assigning IRQ %02d\n", irq);
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
+}
 
-static void __init
+static void
 pdev_fixup_irq(struct pci_dev *dev,
 	       u8 (*swizzle)(struct pci_dev *, u8 *),
 	       int (*map_irq)(const struct pci_dev *, u8, u8))
@@ -54,7 +59,7 @@ pdev_fixup_irq(struct pci_dev *dev,
 	pcibios_update_irq(dev, irq);
 }
 
-void __init
+void
 pci_fixup_irqs(u8 (*swizzle)(struct pci_dev *, u8 *),
 	       int (*map_irq)(const struct pci_dev *, u8, u8))
 {
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index d6cc62cb4cf..0aab85a5155 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -21,6 +21,7 @@
 #include <linux/bitops.h>
 #include <linux/time.h>
 
+#include <asm/xen/swiotlb-xen.h>
 #define INVALID_GRANT_REF (0)
 #define INVALID_EVTCHN    (-1)
 
@@ -236,7 +237,7 @@ static int pcifront_bus_write(struct pci_bus *bus, unsigned int devfn,
 	return errno_to_pcibios_err(do_pci_op(pdev, &op));
 }
 
-struct pci_ops pcifront_bus_ops = {
+static struct pci_ops pcifront_bus_ops = {
 	.read = pcifront_bus_read,
 	.write = pcifront_bus_write,
 };
@@ -668,7 +669,7 @@ static irqreturn_t pcifront_handler_aer(int irq, void *dev)
 	schedule_pcifront_aer_op(pdev);
 	return IRQ_HANDLED;
 }
-static int pcifront_connect(struct pcifront_device *pdev)
+static int pcifront_connect_and_init_dma(struct pcifront_device *pdev)
 {
 	int err = 0;
 
@@ -681,9 +682,13 @@ static int pcifront_connect(struct pcifront_device *pdev)
 		dev_err(&pdev->xdev->dev, "PCI frontend already installed!\n");
 		err = -EEXIST;
 	}
-
 	spin_unlock(&pcifront_dev_lock);
 
+	if (!err && !swiotlb_nr_tbl()) {
+		err = pci_xen_swiotlb_init_late();
+		if (err)
+			dev_err(&pdev->xdev->dev, "Could not setup SWIOTLB!\n");
+	}
 	return err;
 }
 
@@ -842,10 +847,10 @@ static int __devinit pcifront_try_connect(struct pcifront_device *pdev)
 	    XenbusStateInitialised)
 		goto out;
 
-	err = pcifront_connect(pdev);
+	err = pcifront_connect_and_init_dma(pdev);
 	if (err) {
 		xenbus_dev_fatal(pdev->xdev, err,
-				 "Error connecting PCI Frontend");
+				 "Error setting up PCI Frontend");
 		goto out;
 	}
 
@@ -982,7 +987,6 @@ static int pcifront_detach_devices(struct pcifront_device *pdev)
 	int err = 0;
 	int i, num_devs;
 	unsigned int domain, bus, slot, func;
-	struct pci_bus *pci_bus;
 	struct pci_dev *pci_dev;
 	char str[64];
 
@@ -1032,13 +1036,8 @@ static int pcifront_detach_devices(struct pcifront_device *pdev)
 			goto out;
 		}
 
-		pci_bus = pci_find_bus(domain, bus);
-		if (!pci_bus) {
-			dev_dbg(&pdev->xdev->dev, "Cannot get bus %04x:%02x\n",
-				domain, bus);
-			continue;
-		}
-		pci_dev = pci_get_slot(pci_bus, PCI_DEVFN(slot, func));
+		pci_dev = pci_get_domain_bus_and_slot(domain, bus,
+				PCI_DEVFN(slot, func));
 		if (!pci_dev) {
 			dev_dbg(&pdev->xdev->dev,
 				"Cannot get PCI device %04x:%02x:%02x.%d\n",
diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index 24caeaf5052..9d3ac998fc1 100644
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -105,8 +105,17 @@ int __ref cb_alloc(struct pcmcia_socket *s)
  */
 void cb_free(struct pcmcia_socket *s)
 {
-	struct pci_dev *bridge = s->cb_dev;
+	struct pci_dev *bridge, *dev, *tmp;
+	struct pci_bus *bus;
 
-	if (bridge)
-		pci_stop_and_remove_behind_bridge(bridge);
+	bridge = s->cb_dev;
+	if (!bridge)
+		return;
+
+	bus = bridge->subordinate;
+	if (!bus)
+		return;
+
+	list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list)
+		pci_stop_and_remove_bus_device(dev);
 }
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index 0ad06a3bd56..fa74efe8220 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -24,7 +24,7 @@
 #include <asm/io.h>
 #include <asm/sizes.h>
 
-#include <plat/mux.h>
+#include <mach/mux.h>
 #include <plat/tc.h>
 
 
diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c
index 490bb82b5bd..cfec9dd18ff 100644
--- a/drivers/pcmcia/pxa2xx_base.c
+++ b/drivers/pcmcia/pxa2xx_base.c
@@ -297,7 +297,7 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
 	}
 
 	clk = clk_get(&dev->dev, NULL);
-	if (!clk)
+	if (IS_ERR(clk))
 		return -ENODEV;
 
 	pxa2xx_drv_pcmcia_ops(ops);
diff --git a/drivers/pcmcia/pxa2xx_viper.c b/drivers/pcmcia/pxa2xx_viper.c
index cb0c37ec7f2..a76f495953a 100644
--- a/drivers/pcmcia/pxa2xx_viper.c
+++ b/drivers/pcmcia/pxa2xx_viper.c
@@ -25,7 +25,7 @@
 
 #include <asm/irq.h>
 
-#include <mach/arcom-pcmcia.h>
+#include <linux/platform_data/pcmcia-pxa2xx_viper.h>
 
 #include "soc_common.h"
 #include "pxa2xx_base.h"
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 54e3588bef6..1ef6e1e8c6c 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -26,11 +26,24 @@ config DEBUG_PINCTRL
 	help
 	  Say Y here to add some extra checks and diagnostics to PINCTRL calls.
 
+config PINCTRL_BCM2835
+	bool
+	select PINMUX
+	select PINCONF
+
 config PINCTRL_IMX
 	bool
 	select PINMUX
 	select PINCONF
 
+config PINCTRL_IMX35
+	bool "IMX35 pinctrl driver"
+	depends on OF
+	depends on SOC_IMX35
+	select PINCTRL_IMX
+	help
+	  Say Y here to enable the imx35 pinctrl driver
+
 config PINCTRL_IMX51
 	bool "IMX51 pinctrl driver"
 	depends on OF
@@ -86,10 +99,18 @@ config PINCTRL_NOMADIK
 	select PINMUX
 	select PINCONF
 
+config PINCTRL_STN8815
+	bool "STN8815 pin controller driver"
+	depends on PINCTRL_NOMADIK && ARCH_NOMADIK
+
 config PINCTRL_DB8500
 	bool "DB8500 pin controller driver"
 	depends on PINCTRL_NOMADIK && ARCH_U8500
 
+config PINCTRL_DB8540
+	bool "DB8540 pin controller driver"
+	depends on PINCTRL_NOMADIK && ARCH_U8500
+
 config PINCTRL_PXA168
 	bool "PXA168 pin controller driver"
 	depends on ARCH_MMP
@@ -145,6 +166,15 @@ config PINCTRL_COH901
 	  COH 901 335 and COH 901 571/3. They contain 3, 5 or 7
 	  ports of 8 GPIO pins each.
 
+config PINCTRL_SAMSUNG
+	bool "Samsung pinctrl driver"
+	select PINMUX
+	select PINCONF
+
+config PINCTRL_EXYNOS4
+	bool "Pinctrl driver data for Exynos4 SoC"
+	select PINCTRL_SAMSUNG
+
 source "drivers/pinctrl/spear/Kconfig"
 
 endmenu
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index f40b1f81ff2..698527dce29 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -9,7 +9,9 @@ ifeq ($(CONFIG_OF),y)
 obj-$(CONFIG_PINCTRL)		+= devicetree.o
 endif
 obj-$(CONFIG_GENERIC_PINCONF)	+= pinconf-generic.o
+obj-$(CONFIG_PINCTRL_BCM2835)	+= pinctrl-bcm2835.o
 obj-$(CONFIG_PINCTRL_IMX)	+= pinctrl-imx.o
+obj-$(CONFIG_PINCTRL_IMX35)	+= pinctrl-imx35.o
 obj-$(CONFIG_PINCTRL_IMX51)	+= pinctrl-imx51.o
 obj-$(CONFIG_PINCTRL_IMX53)	+= pinctrl-imx53.o
 obj-$(CONFIG_PINCTRL_IMX6Q)	+= pinctrl-imx6q.o
@@ -19,7 +21,9 @@ obj-$(CONFIG_PINCTRL_MXS)	+= pinctrl-mxs.o
 obj-$(CONFIG_PINCTRL_IMX23)	+= pinctrl-imx23.o
 obj-$(CONFIG_PINCTRL_IMX28)	+= pinctrl-imx28.o
 obj-$(CONFIG_PINCTRL_NOMADIK)	+= pinctrl-nomadik.o
+obj-$(CONFIG_PINCTRL_STN8815)	+= pinctrl-nomadik-stn8815.o
 obj-$(CONFIG_PINCTRL_DB8500)	+= pinctrl-nomadik-db8500.o
+obj-$(CONFIG_PINCTRL_DB8540)	+= pinctrl-nomadik-db8540.o
 obj-$(CONFIG_PINCTRL_PXA168)	+= pinctrl-pxa168.o
 obj-$(CONFIG_PINCTRL_PXA910)	+= pinctrl-pxa910.o
 obj-$(CONFIG_PINCTRL_SINGLE)	+= pinctrl-single.o
@@ -29,5 +33,7 @@ obj-$(CONFIG_PINCTRL_TEGRA20)	+= pinctrl-tegra20.o
 obj-$(CONFIG_PINCTRL_TEGRA30)	+= pinctrl-tegra30.o
 obj-$(CONFIG_PINCTRL_U300)	+= pinctrl-u300.o
 obj-$(CONFIG_PINCTRL_COH901)	+= pinctrl-coh901.o
+obj-$(CONFIG_PINCTRL_SAMSUNG)	+= pinctrl-samsung.o
+obj-$(CONFIG_PINCTRL_EXYNOS4)	+= pinctrl-exynos.o
 
 obj-$(CONFIG_PLAT_SPEAR)	+= spear/
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index fb7f3bebdc6..0f1ec9e8ff1 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -230,8 +230,10 @@ static int pinctrl_register_one_pin(struct pinctrl_dev *pctldev,
 		pindesc->name = name;
 	} else {
 		pindesc->name = kasprintf(GFP_KERNEL, "PIN%u", number);
-		if (pindesc->name == NULL)
+		if (pindesc->name == NULL) {
+			kfree(pindesc);
 			return -ENOMEM;
+		}
 		pindesc->dynamic_name = true;
 	}
 
@@ -657,11 +659,7 @@ static struct pinctrl *pinctrl_get_locked(struct device *dev)
 	if (p != NULL)
 		return ERR_PTR(-EBUSY);
 
-	p = create_pinctrl(dev);
-	if (IS_ERR(p))
-		return p;
-
-	return p;
+	return create_pinctrl(dev);
 }
 
 /**
@@ -738,11 +736,8 @@ static struct pinctrl_state *pinctrl_lookup_state_locked(struct pinctrl *p,
 			dev_dbg(p->dev, "using pinctrl dummy state (%s)\n",
 				name);
 			state = create_state(p, name);
-			if (IS_ERR(state))
-				return state;
-		} else {
-			return ERR_PTR(-ENODEV);
-		}
+		} else
+			state = ERR_PTR(-ENODEV);
 	}
 
 	return state;
diff --git a/drivers/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
new file mode 100644
index 00000000000..a4adee633fa
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -0,0 +1,1075 @@
+/*
+ * Driver for Broadcom BCM2835 GPIO unit (pinctrl + GPIO)
+ *
+ * Copyright (C) 2012 Chris Boot, Simon Arlott, Stephen Warren
+ *
+ * This driver is inspired by:
+ * pinctrl-nomadik.c, please see original file for copyright information
+ * pinctrl-tegra.c, please see original file for copyright information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/bitmap.h>
+#include <linux/bug.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdesc.h>
+#include <linux/irqdomain.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+#define MODULE_NAME "pinctrl-bcm2835"
+#define BCM2835_NUM_GPIOS 54
+#define BCM2835_NUM_BANKS 2
+
+#define BCM2835_PIN_BITMAP_SZ \
+	DIV_ROUND_UP(BCM2835_NUM_GPIOS, sizeof(unsigned long) * 8)
+
+/* GPIO register offsets */
+#define GPFSEL0		0x0	/* Function Select */
+#define GPSET0		0x1c	/* Pin Output Set */
+#define GPCLR0		0x28	/* Pin Output Clear */
+#define GPLEV0		0x34	/* Pin Level */
+#define GPEDS0		0x40	/* Pin Event Detect Status */
+#define GPREN0		0x4c	/* Pin Rising Edge Detect Enable */
+#define GPFEN0		0x58	/* Pin Falling Edge Detect Enable */
+#define GPHEN0		0x64	/* Pin High Detect Enable */
+#define GPLEN0		0x70	/* Pin Low Detect Enable */
+#define GPAREN0		0x7c	/* Pin Async Rising Edge Detect */
+#define GPAFEN0		0x88	/* Pin Async Falling Edge Detect */
+#define GPPUD		0x94	/* Pin Pull-up/down Enable */
+#define GPPUDCLK0	0x98	/* Pin Pull-up/down Enable Clock */
+
+#define FSEL_REG(p)		(GPFSEL0 + (((p) / 10) * 4))
+#define FSEL_SHIFT(p)		(((p) % 10) * 3)
+#define GPIO_REG_OFFSET(p)	((p) / 32)
+#define GPIO_REG_SHIFT(p)	((p) % 32)
+
+enum bcm2835_pinconf_param {
+	/* argument: bcm2835_pinconf_pull */
+	BCM2835_PINCONF_PARAM_PULL,
+};
+
+enum bcm2835_pinconf_pull {
+	BCM2835_PINCONFIG_PULL_NONE,
+	BCM2835_PINCONFIG_PULL_DOWN,
+	BCM2835_PINCONFIG_PULL_UP,
+};
+
+#define BCM2835_PINCONF_PACK(_param_, _arg_) ((_param_) << 16 | (_arg_))
+#define BCM2835_PINCONF_UNPACK_PARAM(_conf_) ((_conf_) >> 16)
+#define BCM2835_PINCONF_UNPACK_ARG(_conf_) ((_conf_) & 0xffff)
+
+struct bcm2835_gpio_irqdata {
+	struct bcm2835_pinctrl *pc;
+	int bank;
+};
+
+struct bcm2835_pinctrl {
+	struct device *dev;
+	void __iomem *base;
+	int irq[BCM2835_NUM_BANKS];
+
+	/* note: locking assumes each bank will have its own unsigned long */
+	unsigned long enabled_irq_map[BCM2835_NUM_BANKS];
+	unsigned int irq_type[BCM2835_NUM_GPIOS];
+
+	struct pinctrl_dev *pctl_dev;
+	struct irq_domain *irq_domain;
+	struct gpio_chip gpio_chip;
+	struct pinctrl_gpio_range gpio_range;
+
+	struct bcm2835_gpio_irqdata irq_data[BCM2835_NUM_BANKS];
+	spinlock_t irq_lock[BCM2835_NUM_BANKS];
+};
+
+static struct lock_class_key gpio_lock_class;
+
+/* pins are just named GPIO0..GPIO53 */
+#define BCM2835_GPIO_PIN(a) PINCTRL_PIN(a, "gpio" #a)
+struct pinctrl_pin_desc bcm2835_gpio_pins[] = {
+	BCM2835_GPIO_PIN(0),
+	BCM2835_GPIO_PIN(1),
+	BCM2835_GPIO_PIN(2),
+	BCM2835_GPIO_PIN(3),
+	BCM2835_GPIO_PIN(4),
+	BCM2835_GPIO_PIN(5),
+	BCM2835_GPIO_PIN(6),
+	BCM2835_GPIO_PIN(7),
+	BCM2835_GPIO_PIN(8),
+	BCM2835_GPIO_PIN(9),
+	BCM2835_GPIO_PIN(10),
+	BCM2835_GPIO_PIN(11),
+	BCM2835_GPIO_PIN(12),
+	BCM2835_GPIO_PIN(13),
+	BCM2835_GPIO_PIN(14),
+	BCM2835_GPIO_PIN(15),
+	BCM2835_GPIO_PIN(16),
+	BCM2835_GPIO_PIN(17),
+	BCM2835_GPIO_PIN(18),
+	BCM2835_GPIO_PIN(19),
+	BCM2835_GPIO_PIN(20),
+	BCM2835_GPIO_PIN(21),
+	BCM2835_GPIO_PIN(22),
+	BCM2835_GPIO_PIN(23),
+	BCM2835_GPIO_PIN(24),
+	BCM2835_GPIO_PIN(25),
+	BCM2835_GPIO_PIN(26),
+	BCM2835_GPIO_PIN(27),
+	BCM2835_GPIO_PIN(28),
+	BCM2835_GPIO_PIN(29),
+	BCM2835_GPIO_PIN(30),
+	BCM2835_GPIO_PIN(31),
+	BCM2835_GPIO_PIN(32),
+	BCM2835_GPIO_PIN(33),
+	BCM2835_GPIO_PIN(34),
+	BCM2835_GPIO_PIN(35),
+	BCM2835_GPIO_PIN(36),
+	BCM2835_GPIO_PIN(37),
+	BCM2835_GPIO_PIN(38),
+	BCM2835_GPIO_PIN(39),
+	BCM2835_GPIO_PIN(40),
+	BCM2835_GPIO_PIN(41),
+	BCM2835_GPIO_PIN(42),
+	BCM2835_GPIO_PIN(43),
+	BCM2835_GPIO_PIN(44),
+	BCM2835_GPIO_PIN(45),
+	BCM2835_GPIO_PIN(46),
+	BCM2835_GPIO_PIN(47),
+	BCM2835_GPIO_PIN(48),
+	BCM2835_GPIO_PIN(49),
+	BCM2835_GPIO_PIN(50),
+	BCM2835_GPIO_PIN(51),
+	BCM2835_GPIO_PIN(52),
+	BCM2835_GPIO_PIN(53),
+};
+
+/* one pin per group */
+static const char * const bcm2835_gpio_groups[] = {
+	"gpio0",
+	"gpio1",
+	"gpio2",
+	"gpio3",
+	"gpio4",
+	"gpio5",
+	"gpio6",
+	"gpio7",
+	"gpio8",
+	"gpio9",
+	"gpio10",
+	"gpio11",
+	"gpio12",
+	"gpio13",
+	"gpio14",
+	"gpio15",
+	"gpio16",
+	"gpio17",
+	"gpio18",
+	"gpio19",
+	"gpio20",
+	"gpio21",
+	"gpio22",
+	"gpio23",
+	"gpio24",
+	"gpio25",
+	"gpio26",
+	"gpio27",
+	"gpio28",
+	"gpio29",
+	"gpio30",
+	"gpio31",
+	"gpio32",
+	"gpio33",
+	"gpio34",
+	"gpio35",
+	"gpio36",
+	"gpio37",
+	"gpio38",
+	"gpio39",
+	"gpio40",
+	"gpio41",
+	"gpio42",
+	"gpio43",
+	"gpio44",
+	"gpio45",
+	"gpio46",
+	"gpio47",
+	"gpio48",
+	"gpio49",
+	"gpio50",
+	"gpio51",
+	"gpio52",
+	"gpio53",
+};
+
+enum bcm2835_fsel {
+	BCM2835_FSEL_GPIO_IN = 0,
+	BCM2835_FSEL_GPIO_OUT = 1,
+	BCM2835_FSEL_ALT0 = 4,
+	BCM2835_FSEL_ALT1 = 5,
+	BCM2835_FSEL_ALT2 = 6,
+	BCM2835_FSEL_ALT3 = 7,
+	BCM2835_FSEL_ALT4 = 3,
+	BCM2835_FSEL_ALT5 = 2,
+	BCM2835_FSEL_COUNT = 8,
+	BCM2835_FSEL_MASK = 0x7,
+};
+
+static const char * const bcm2835_functions[BCM2835_FSEL_COUNT] = {
+	[BCM2835_FSEL_GPIO_IN] = "gpio_in",
+	[BCM2835_FSEL_GPIO_OUT] = "gpio_out",
+	[BCM2835_FSEL_ALT0] = "alt0",
+	[BCM2835_FSEL_ALT1] = "alt1",
+	[BCM2835_FSEL_ALT2] = "alt2",
+	[BCM2835_FSEL_ALT3] = "alt3",
+	[BCM2835_FSEL_ALT4] = "alt4",
+	[BCM2835_FSEL_ALT5] = "alt5",
+};
+
+static const char * const irq_type_names[] = {
+	[IRQ_TYPE_NONE] = "none",
+	[IRQ_TYPE_EDGE_RISING] = "edge-rising",
+	[IRQ_TYPE_EDGE_FALLING] = "edge-falling",
+	[IRQ_TYPE_EDGE_BOTH] = "edge-both",
+	[IRQ_TYPE_LEVEL_HIGH] = "level-high",
+	[IRQ_TYPE_LEVEL_LOW] = "level-low",
+};
+
+static inline u32 bcm2835_gpio_rd(struct bcm2835_pinctrl *pc, unsigned reg)
+{
+	return readl(pc->base + reg);
+}
+
+static inline void bcm2835_gpio_wr(struct bcm2835_pinctrl *pc, unsigned reg,
+		u32 val)
+{
+	writel(val, pc->base + reg);
+}
+
+static inline int bcm2835_gpio_get_bit(struct bcm2835_pinctrl *pc, unsigned reg,
+		unsigned bit)
+{
+	reg += GPIO_REG_OFFSET(bit) * 4;
+	return (bcm2835_gpio_rd(pc, reg) >> GPIO_REG_SHIFT(bit)) & 1;
+}
+
+/* note NOT a read/modify/write cycle */
+static inline void bcm2835_gpio_set_bit(struct bcm2835_pinctrl *pc,
+		unsigned reg, unsigned bit)
+{
+	reg += GPIO_REG_OFFSET(bit) * 4;
+	bcm2835_gpio_wr(pc, reg, BIT(GPIO_REG_SHIFT(bit)));
+}
+
+static inline enum bcm2835_fsel bcm2835_pinctrl_fsel_get(
+		struct bcm2835_pinctrl *pc, unsigned pin)
+{
+	u32 val = bcm2835_gpio_rd(pc, FSEL_REG(pin));
+	enum bcm2835_fsel status = (val >> FSEL_SHIFT(pin)) & BCM2835_FSEL_MASK;
+
+	dev_dbg(pc->dev, "get %08x (%u => %s)\n", val, pin,
+			bcm2835_functions[status]);
+
+	return status;
+}
+
+static inline void bcm2835_pinctrl_fsel_set(
+		struct bcm2835_pinctrl *pc, unsigned pin,
+		enum bcm2835_fsel fsel)
+{
+	u32 val = bcm2835_gpio_rd(pc, FSEL_REG(pin));
+	enum bcm2835_fsel cur = (val >> FSEL_SHIFT(pin)) & BCM2835_FSEL_MASK;
+
+	dev_dbg(pc->dev, "read %08x (%u => %s)\n", val, pin,
+			bcm2835_functions[cur]);
+
+	if (cur == fsel)
+		return;
+
+	if (cur != BCM2835_FSEL_GPIO_IN && fsel != BCM2835_FSEL_GPIO_IN) {
+		/* always transition through GPIO_IN */
+		val &= ~(BCM2835_FSEL_MASK << FSEL_SHIFT(pin));
+		val |= BCM2835_FSEL_GPIO_IN << FSEL_SHIFT(pin);
+
+		dev_dbg(pc->dev, "trans %08x (%u <= %s)\n", val, pin,
+				bcm2835_functions[BCM2835_FSEL_GPIO_IN]);
+		bcm2835_gpio_wr(pc, FSEL_REG(pin), val);
+	}
+
+	val &= ~(BCM2835_FSEL_MASK << FSEL_SHIFT(pin));
+	val |= fsel << FSEL_SHIFT(pin);
+
+	dev_dbg(pc->dev, "write %08x (%u <= %s)\n", val, pin,
+			bcm2835_functions[fsel]);
+	bcm2835_gpio_wr(pc, FSEL_REG(pin), val);
+}
+
+static int bcm2835_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	return pinctrl_request_gpio(chip->base + offset);
+}
+
+static void bcm2835_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	pinctrl_free_gpio(chip->base + offset);
+}
+
+static int bcm2835_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return pinctrl_gpio_direction_input(chip->base + offset);
+}
+
+static int bcm2835_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+
+	return bcm2835_gpio_get_bit(pc, GPLEV0, offset);
+}
+
+static int bcm2835_gpio_direction_output(struct gpio_chip *chip,
+		unsigned offset, int value)
+{
+	return pinctrl_gpio_direction_output(chip->base + offset);
+}
+
+static void bcm2835_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+
+	bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset);
+}
+
+static int bcm2835_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+
+	return irq_linear_revmap(pc->irq_domain, offset);
+}
+
+static struct gpio_chip bcm2835_gpio_chip __devinitconst = {
+	.label = MODULE_NAME,
+	.owner = THIS_MODULE,
+	.request = bcm2835_gpio_request,
+	.free = bcm2835_gpio_free,
+	.direction_input = bcm2835_gpio_direction_input,
+	.direction_output = bcm2835_gpio_direction_output,
+	.get = bcm2835_gpio_get,
+	.set = bcm2835_gpio_set,
+	.to_irq = bcm2835_gpio_to_irq,
+	.base = -1,
+	.ngpio = BCM2835_NUM_GPIOS,
+	.can_sleep = 0,
+};
+
+static irqreturn_t bcm2835_gpio_irq_handler(int irq, void *dev_id)
+{
+	struct bcm2835_gpio_irqdata *irqdata = dev_id;
+	struct bcm2835_pinctrl *pc = irqdata->pc;
+	int bank = irqdata->bank;
+	unsigned long events;
+	unsigned offset;
+	unsigned gpio;
+	unsigned int type;
+
+	events = bcm2835_gpio_rd(pc, GPEDS0 + bank * 4);
+	events &= pc->enabled_irq_map[bank];
+	for_each_set_bit(offset, &events, 32) {
+		gpio = (32 * bank) + offset;
+		type = pc->irq_type[gpio];
+
+		/* ack edge triggered IRQs immediately */
+		if (!(type & IRQ_TYPE_LEVEL_MASK))
+			bcm2835_gpio_set_bit(pc, GPEDS0, gpio);
+
+		generic_handle_irq(irq_linear_revmap(pc->irq_domain, gpio));
+
+		/* ack level triggered IRQ after handling them */
+		if (type & IRQ_TYPE_LEVEL_MASK)
+			bcm2835_gpio_set_bit(pc, GPEDS0, gpio);
+	}
+	return events ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static inline void __bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc,
+	unsigned reg, unsigned offset, bool enable)
+{
+	u32 value;
+	reg += GPIO_REG_OFFSET(offset) * 4;
+	value = bcm2835_gpio_rd(pc, reg);
+	if (enable)
+		value |= BIT(GPIO_REG_SHIFT(offset));
+	else
+		value &= ~(BIT(GPIO_REG_SHIFT(offset)));
+	bcm2835_gpio_wr(pc, reg, value);
+}
+
+/* fast path for IRQ handler */
+static void bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc,
+	unsigned offset, bool enable)
+{
+	switch (pc->irq_type[offset]) {
+	case IRQ_TYPE_EDGE_RISING:
+		__bcm2835_gpio_irq_config(pc, GPREN0, offset, enable);
+		break;
+
+	case IRQ_TYPE_EDGE_FALLING:
+		__bcm2835_gpio_irq_config(pc, GPFEN0, offset, enable);
+		break;
+
+	case IRQ_TYPE_EDGE_BOTH:
+		__bcm2835_gpio_irq_config(pc, GPREN0, offset, enable);
+		__bcm2835_gpio_irq_config(pc, GPFEN0, offset, enable);
+		break;
+
+	case IRQ_TYPE_LEVEL_HIGH:
+		__bcm2835_gpio_irq_config(pc, GPHEN0, offset, enable);
+		break;
+
+	case IRQ_TYPE_LEVEL_LOW:
+		__bcm2835_gpio_irq_config(pc, GPLEN0, offset, enable);
+		break;
+	}
+}
+
+static void bcm2835_gpio_irq_enable(struct irq_data *data)
+{
+	struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data);
+	unsigned gpio = irqd_to_hwirq(data);
+	unsigned offset = GPIO_REG_SHIFT(gpio);
+	unsigned bank = GPIO_REG_OFFSET(gpio);
+	unsigned long flags;
+
+	spin_lock_irqsave(&pc->irq_lock[bank], flags);
+	set_bit(offset, &pc->enabled_irq_map[bank]);
+	bcm2835_gpio_irq_config(pc, gpio, true);
+	spin_unlock_irqrestore(&pc->irq_lock[bank], flags);
+}
+
+static void bcm2835_gpio_irq_disable(struct irq_data *data)
+{
+	struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data);
+	unsigned gpio = irqd_to_hwirq(data);
+	unsigned offset = GPIO_REG_SHIFT(gpio);
+	unsigned bank = GPIO_REG_OFFSET(gpio);
+	unsigned long flags;
+
+	spin_lock_irqsave(&pc->irq_lock[bank], flags);
+	bcm2835_gpio_irq_config(pc, gpio, false);
+	clear_bit(offset, &pc->enabled_irq_map[bank]);
+	spin_unlock_irqrestore(&pc->irq_lock[bank], flags);
+}
+
+static int __bcm2835_gpio_irq_set_type_disabled(struct bcm2835_pinctrl *pc,
+	unsigned offset, unsigned int type)
+{
+	switch (type) {
+	case IRQ_TYPE_NONE:
+	case IRQ_TYPE_EDGE_RISING:
+	case IRQ_TYPE_EDGE_FALLING:
+	case IRQ_TYPE_EDGE_BOTH:
+	case IRQ_TYPE_LEVEL_HIGH:
+	case IRQ_TYPE_LEVEL_LOW:
+		pc->irq_type[offset] = type;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* slower path for reconfiguring IRQ type */
+static int __bcm2835_gpio_irq_set_type_enabled(struct bcm2835_pinctrl *pc,
+	unsigned offset, unsigned int type)
+{
+	switch (type) {
+	case IRQ_TYPE_NONE:
+		if (pc->irq_type[offset] != type) {
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+		}
+		break;
+
+	case IRQ_TYPE_EDGE_RISING:
+		if (pc->irq_type[offset] == IRQ_TYPE_EDGE_BOTH) {
+			/* RISING already enabled, disable FALLING */
+			pc->irq_type[offset] = IRQ_TYPE_EDGE_FALLING;
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+		} else if (pc->irq_type[offset] != type) {
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+			bcm2835_gpio_irq_config(pc, offset, true);
+		}
+		break;
+
+	case IRQ_TYPE_EDGE_FALLING:
+		if (pc->irq_type[offset] == IRQ_TYPE_EDGE_BOTH) {
+			/* FALLING already enabled, disable RISING */
+			pc->irq_type[offset] = IRQ_TYPE_EDGE_RISING;
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+		} else if (pc->irq_type[offset] != type) {
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+			bcm2835_gpio_irq_config(pc, offset, true);
+		}
+		break;
+
+	case IRQ_TYPE_EDGE_BOTH:
+		if (pc->irq_type[offset] == IRQ_TYPE_EDGE_RISING) {
+			/* RISING already enabled, enable FALLING too */
+			pc->irq_type[offset] = IRQ_TYPE_EDGE_FALLING;
+			bcm2835_gpio_irq_config(pc, offset, true);
+			pc->irq_type[offset] = type;
+		} else if (pc->irq_type[offset] == IRQ_TYPE_EDGE_FALLING) {
+			/* FALLING already enabled, enable RISING too */
+			pc->irq_type[offset] = IRQ_TYPE_EDGE_RISING;
+			bcm2835_gpio_irq_config(pc, offset, true);
+			pc->irq_type[offset] = type;
+		} else if (pc->irq_type[offset] != type) {
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+			bcm2835_gpio_irq_config(pc, offset, true);
+		}
+		break;
+
+	case IRQ_TYPE_LEVEL_HIGH:
+	case IRQ_TYPE_LEVEL_LOW:
+		if (pc->irq_type[offset] != type) {
+			bcm2835_gpio_irq_config(pc, offset, false);
+			pc->irq_type[offset] = type;
+			bcm2835_gpio_irq_config(pc, offset, true);
+		}
+		break;
+
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int bcm2835_gpio_irq_set_type(struct irq_data *data, unsigned int type)
+{
+	struct bcm2835_pinctrl *pc = irq_data_get_irq_chip_data(data);
+	unsigned gpio = irqd_to_hwirq(data);
+	unsigned offset = GPIO_REG_SHIFT(gpio);
+	unsigned bank = GPIO_REG_OFFSET(gpio);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&pc->irq_lock[bank], flags);
+
+	if (test_bit(offset, &pc->enabled_irq_map[bank]))
+		ret = __bcm2835_gpio_irq_set_type_enabled(pc, gpio, type);
+	else
+		ret = __bcm2835_gpio_irq_set_type_disabled(pc, gpio, type);
+
+	spin_unlock_irqrestore(&pc->irq_lock[bank], flags);
+
+	return ret;
+}
+
+static struct irq_chip bcm2835_gpio_irq_chip = {
+	.name = MODULE_NAME,
+	.irq_enable = bcm2835_gpio_irq_enable,
+	.irq_disable = bcm2835_gpio_irq_disable,
+	.irq_set_type = bcm2835_gpio_irq_set_type,
+};
+
+static int bcm2835_pctl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+	return ARRAY_SIZE(bcm2835_gpio_groups);
+}
+
+static const char *bcm2835_pctl_get_group_name(struct pinctrl_dev *pctldev,
+		unsigned selector)
+{
+	return bcm2835_gpio_groups[selector];
+}
+
+static int bcm2835_pctl_get_group_pins(struct pinctrl_dev *pctldev,
+		unsigned selector,
+		const unsigned **pins,
+		unsigned *num_pins)
+{
+	*pins = &bcm2835_gpio_pins[selector].number;
+	*num_pins = 1;
+
+	return 0;
+}
+
+static void bcm2835_pctl_pin_dbg_show(struct pinctrl_dev *pctldev,
+		struct seq_file *s,
+		unsigned offset)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+	enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset);
+	const char *fname = bcm2835_functions[fsel];
+	int value = bcm2835_gpio_get_bit(pc, GPLEV0, offset);
+	int irq = irq_find_mapping(pc->irq_domain, offset);
+
+	seq_printf(s, "function %s in %s; irq %d (%s)",
+		fname, value ? "hi" : "lo",
+		irq, irq_type_names[pc->irq_type[offset]]);
+}
+
+static void bcm2835_pctl_dt_free_map(struct pinctrl_dev *pctldev,
+		struct pinctrl_map *maps, unsigned num_maps)
+{
+	int i;
+
+	for (i = 0; i < num_maps; i++)
+		if (maps[i].type == PIN_MAP_TYPE_CONFIGS_PIN)
+			kfree(maps[i].data.configs.configs);
+
+	kfree(maps);
+}
+
+static int bcm2835_pctl_dt_node_to_map_func(struct bcm2835_pinctrl *pc,
+		struct device_node *np, u32 pin, u32 fnum,
+		struct pinctrl_map **maps)
+{
+	struct pinctrl_map *map = *maps;
+
+	if (fnum >= ARRAY_SIZE(bcm2835_functions)) {
+		dev_err(pc->dev, "%s: invalid brcm,function %d\n",
+			of_node_full_name(np), fnum);
+		return -EINVAL;
+	}
+
+	map->type = PIN_MAP_TYPE_MUX_GROUP;
+	map->data.mux.group = bcm2835_gpio_groups[pin];
+	map->data.mux.function = bcm2835_functions[fnum];
+	(*maps)++;
+
+	return 0;
+}
+
+static int bcm2835_pctl_dt_node_to_map_pull(struct bcm2835_pinctrl *pc,
+		struct device_node *np, u32 pin, u32 pull,
+		struct pinctrl_map **maps)
+{
+	struct pinctrl_map *map = *maps;
+	unsigned long *configs;
+
+	if (pull > 2) {
+		dev_err(pc->dev, "%s: invalid brcm,pull %d\n",
+			of_node_full_name(np), pull);
+		return -EINVAL;
+	}
+
+	configs = kzalloc(sizeof(*configs), GFP_KERNEL);
+	if (!configs)
+		return -ENOMEM;
+	configs[0] = BCM2835_PINCONF_PACK(BCM2835_PINCONF_PARAM_PULL, pull);
+
+	map->type = PIN_MAP_TYPE_CONFIGS_PIN;
+	map->data.configs.group_or_pin = bcm2835_gpio_pins[pin].name;
+	map->data.configs.configs = configs;
+	map->data.configs.num_configs = 1;
+	(*maps)++;
+
+	return 0;
+}
+
+static inline u32 prop_u32(struct property *p, int i)
+{
+	return be32_to_cpup(((__be32 *)p->value) + i);
+}
+
+static int bcm2835_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
+		struct device_node *np,
+		struct pinctrl_map **map, unsigned *num_maps)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+	struct property *pins, *funcs, *pulls;
+	int num_pins, num_funcs, num_pulls, maps_per_pin;
+	struct pinctrl_map *maps, *cur_map;
+	int i, err;
+	u32 pin, func, pull;
+
+	pins = of_find_property(np, "brcm,pins", NULL);
+	if (!pins) {
+		dev_err(pc->dev, "%s: missing brcm,pins property\n",
+				of_node_full_name(np));
+		return -EINVAL;
+	}
+
+	funcs = of_find_property(np, "brcm,function", NULL);
+	pulls = of_find_property(np, "brcm,pull", NULL);
+
+	if (!funcs && !pulls) {
+		dev_err(pc->dev,
+			"%s: neither brcm,function nor brcm,pull specified\n",
+			of_node_full_name(np));
+		return -EINVAL;
+	}
+
+	num_pins = pins->length / 4;
+	num_funcs = funcs ? (funcs->length / 4) : 0;
+	num_pulls = pulls ? (pulls->length / 4) : 0;
+
+	if (num_funcs > 1 && num_funcs != num_pins) {
+		dev_err(pc->dev,
+			"%s: brcm,function must have 1 or %d entries\n",
+			of_node_full_name(np), num_pins);
+		return -EINVAL;
+	}
+
+	if (num_pulls > 1 && num_pulls != num_pins) {
+		dev_err(pc->dev,
+			"%s: brcm,pull must have 1 or %d entries\n",
+			of_node_full_name(np), num_pins);
+		return -EINVAL;
+	}
+
+	maps_per_pin = 0;
+	if (num_funcs)
+		maps_per_pin++;
+	if (num_pulls)
+		maps_per_pin++;
+	cur_map = maps = kzalloc(num_pins * maps_per_pin * sizeof(*maps),
+				GFP_KERNEL);
+	if (!maps)
+		return -ENOMEM;
+
+	for (i = 0; i < num_pins; i++) {
+		pin = prop_u32(pins, i);
+		if (pin >= ARRAY_SIZE(bcm2835_gpio_pins)) {
+			dev_err(pc->dev, "%s: invalid brcm,pins value %d\n",
+				of_node_full_name(np), pin);
+			err = -EINVAL;
+			goto out;
+		}
+
+		if (num_funcs) {
+			func = prop_u32(funcs, (num_funcs > 1) ? i : 0);
+			err = bcm2835_pctl_dt_node_to_map_func(pc, np, pin,
+							func, &cur_map);
+			if (err)
+				goto out;
+		}
+		if (num_pulls) {
+			pull = prop_u32(pulls, (num_pulls > 1) ? i : 0);
+			err = bcm2835_pctl_dt_node_to_map_pull(pc, np, pin,
+							pull, &cur_map);
+			if (err)
+				goto out;
+		}
+	}
+
+	*map = maps;
+	*num_maps = num_pins * maps_per_pin;
+
+	return 0;
+
+out:
+	kfree(maps);
+	return err;
+}
+
+static struct pinctrl_ops bcm2835_pctl_ops = {
+	.get_groups_count = bcm2835_pctl_get_groups_count,
+	.get_group_name = bcm2835_pctl_get_group_name,
+	.get_group_pins = bcm2835_pctl_get_group_pins,
+	.pin_dbg_show = bcm2835_pctl_pin_dbg_show,
+	.dt_node_to_map = bcm2835_pctl_dt_node_to_map,
+	.dt_free_map = bcm2835_pctl_dt_free_map,
+};
+
+static int bcm2835_pmx_get_functions_count(struct pinctrl_dev *pctldev)
+{
+	return BCM2835_FSEL_COUNT;
+}
+
+static const char *bcm2835_pmx_get_function_name(struct pinctrl_dev *pctldev,
+		unsigned selector)
+{
+	return bcm2835_functions[selector];
+}
+
+static int bcm2835_pmx_get_function_groups(struct pinctrl_dev *pctldev,
+		unsigned selector,
+		const char * const **groups,
+		unsigned * const num_groups)
+{
+	/* every pin can do every function */
+	*groups = bcm2835_gpio_groups;
+	*num_groups = ARRAY_SIZE(bcm2835_gpio_groups);
+
+	return 0;
+}
+
+static int bcm2835_pmx_enable(struct pinctrl_dev *pctldev,
+		unsigned func_selector,
+		unsigned group_selector)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+	bcm2835_pinctrl_fsel_set(pc, group_selector, func_selector);
+
+	return 0;
+}
+
+static void bcm2835_pmx_disable(struct pinctrl_dev *pctldev,
+		unsigned func_selector,
+		unsigned group_selector)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+	/* disable by setting to GPIO_IN */
+	bcm2835_pinctrl_fsel_set(pc, group_selector, BCM2835_FSEL_GPIO_IN);
+}
+
+static void bcm2835_pmx_gpio_disable_free(struct pinctrl_dev *pctldev,
+		struct pinctrl_gpio_range *range,
+		unsigned offset)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+
+	/* disable by setting to GPIO_IN */
+	bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN);
+}
+
+static int bcm2835_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
+		struct pinctrl_gpio_range *range,
+		unsigned offset,
+		bool input)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+	enum bcm2835_fsel fsel = input ?
+		BCM2835_FSEL_GPIO_IN : BCM2835_FSEL_GPIO_OUT;
+
+	bcm2835_pinctrl_fsel_set(pc, offset, fsel);
+
+	return 0;
+}
+
+static struct pinmux_ops bcm2835_pmx_ops = {
+	.get_functions_count = bcm2835_pmx_get_functions_count,
+	.get_function_name = bcm2835_pmx_get_function_name,
+	.get_function_groups = bcm2835_pmx_get_function_groups,
+	.enable = bcm2835_pmx_enable,
+	.disable = bcm2835_pmx_disable,
+	.gpio_disable_free = bcm2835_pmx_gpio_disable_free,
+	.gpio_set_direction = bcm2835_pmx_gpio_set_direction,
+};
+
+static int bcm2835_pinconf_get(struct pinctrl_dev *pctldev,
+			unsigned pin, unsigned long *config)
+{
+	/* No way to read back config in HW */
+	return -ENOTSUPP;
+}
+
+static int bcm2835_pinconf_set(struct pinctrl_dev *pctldev,
+			unsigned pin, unsigned long config)
+{
+	struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
+	enum bcm2835_pinconf_param param = BCM2835_PINCONF_UNPACK_PARAM(config);
+	u16 arg = BCM2835_PINCONF_UNPACK_ARG(config);
+	u32 off, bit;
+
+	if (param != BCM2835_PINCONF_PARAM_PULL)
+		return -EINVAL;
+
+	off = GPIO_REG_OFFSET(pin);
+	bit = GPIO_REG_SHIFT(pin);
+
+	bcm2835_gpio_wr(pc, GPPUD, arg & 3);
+	/*
+	 * Docs say to wait 150 cycles, but not of what. We assume a
+	 * 1 MHz clock here, which is pretty slow...
+	 */
+	udelay(150);
+	bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), BIT(bit));
+	udelay(150);
+	bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), 0);
+
+	return 0;
+}
+
+struct pinconf_ops bcm2835_pinconf_ops = {
+	.pin_config_get = bcm2835_pinconf_get,
+	.pin_config_set = bcm2835_pinconf_set,
+};
+
+static struct pinctrl_desc bcm2835_pinctrl_desc = {
+	.name = MODULE_NAME,
+	.pins = bcm2835_gpio_pins,
+	.npins = ARRAY_SIZE(bcm2835_gpio_pins),
+	.pctlops = &bcm2835_pctl_ops,
+	.pmxops = &bcm2835_pmx_ops,
+	.confops = &bcm2835_pinconf_ops,
+	.owner = THIS_MODULE,
+};
+
+static struct pinctrl_gpio_range bcm2835_pinctrl_gpio_range __devinitconst = {
+	.name = MODULE_NAME,
+	.npins = BCM2835_NUM_GPIOS,
+};
+
+static int __devinit bcm2835_pinctrl_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct bcm2835_pinctrl *pc;
+	struct resource iomem;
+	int err, i;
+	BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_pins) != BCM2835_NUM_GPIOS);
+	BUILD_BUG_ON(ARRAY_SIZE(bcm2835_gpio_groups) != BCM2835_NUM_GPIOS);
+
+	pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL);
+	if (!pc)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, pc);
+	pc->dev = dev;
+
+	err = of_address_to_resource(np, 0, &iomem);
+	if (err) {
+		dev_err(dev, "could not get IO memory\n");
+		return err;
+	}
+
+	pc->base = devm_request_and_ioremap(&pdev->dev, &iomem);
+	if (!pc->base)
+		return -EADDRNOTAVAIL;
+
+	pc->gpio_chip = bcm2835_gpio_chip;
+	pc->gpio_chip.dev = dev;
+	pc->gpio_chip.of_node = np;
+
+	pc->irq_domain = irq_domain_add_linear(np, BCM2835_NUM_GPIOS,
+			&irq_domain_simple_ops, NULL);
+	if (!pc->irq_domain) {
+		dev_err(dev, "could not create IRQ domain\n");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < BCM2835_NUM_GPIOS; i++) {
+		int irq = irq_create_mapping(pc->irq_domain, i);
+		irq_set_lockdep_class(irq, &gpio_lock_class);
+		irq_set_chip_and_handler(irq, &bcm2835_gpio_irq_chip,
+				handle_simple_irq);
+		irq_set_chip_data(irq, pc);
+		set_irq_flags(irq, IRQF_VALID);
+	}
+
+	for (i = 0; i < BCM2835_NUM_BANKS; i++) {
+		unsigned long events;
+		unsigned offset;
+		int len;
+		char *name;
+
+		/* clear event detection flags */
+		bcm2835_gpio_wr(pc, GPREN0 + i * 4, 0);
+		bcm2835_gpio_wr(pc, GPFEN0 + i * 4, 0);
+		bcm2835_gpio_wr(pc, GPHEN0 + i * 4, 0);
+		bcm2835_gpio_wr(pc, GPLEN0 + i * 4, 0);
+		bcm2835_gpio_wr(pc, GPAREN0 + i * 4, 0);
+		bcm2835_gpio_wr(pc, GPAFEN0 + i * 4, 0);
+
+		/* clear all the events */
+		events = bcm2835_gpio_rd(pc, GPEDS0 + i * 4);
+		for_each_set_bit(offset, &events, 32)
+			bcm2835_gpio_wr(pc, GPEDS0 + i * 4, BIT(offset));
+
+		pc->irq[i] = irq_of_parse_and_map(np, i);
+		pc->irq_data[i].pc = pc;
+		pc->irq_data[i].bank = i;
+		spin_lock_init(&pc->irq_lock[i]);
+
+		len = strlen(dev_name(pc->dev)) + 16;
+		name = devm_kzalloc(pc->dev, len, GFP_KERNEL);
+		if (!name)
+			return -ENOMEM;
+		snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i);
+
+		err = devm_request_irq(dev, pc->irq[i],
+			bcm2835_gpio_irq_handler, IRQF_SHARED,
+			name, &pc->irq_data[i]);
+		if (err) {
+			dev_err(dev, "unable to request IRQ %d\n", pc->irq[i]);
+			return err;
+		}
+	}
+
+	err = gpiochip_add(&pc->gpio_chip);
+	if (err) {
+		dev_err(dev, "could not add GPIO chip\n");
+		return err;
+	}
+
+	pc->pctl_dev = pinctrl_register(&bcm2835_pinctrl_desc, dev, pc);
+	if (!pc->pctl_dev) {
+		gpiochip_remove(&pc->gpio_chip);
+		return PTR_ERR(pc->pctl_dev);
+	}
+
+	pc->gpio_range = bcm2835_pinctrl_gpio_range;
+	pc->gpio_range.base = pc->gpio_chip.base;
+	pc->gpio_range.gc = &pc->gpio_chip;
+	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
+
+	return 0;
+}
+
+static int __devexit bcm2835_pinctrl_remove(struct platform_device *pdev)
+{
+	struct bcm2835_pinctrl *pc = platform_get_drvdata(pdev);
+
+	pinctrl_unregister(pc->pctl_dev);
+	gpiochip_remove(&pc->gpio_chip);
+
+	return 0;
+}
+
+static struct of_device_id bcm2835_pinctrl_match[] __devinitconst = {
+	{ .compatible = "brcm,bcm2835-gpio" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, bcm2835_pinctrl_match);
+
+static struct platform_driver bcm2835_pinctrl_driver = {
+	.probe = bcm2835_pinctrl_probe,
+	.remove = bcm2835_pinctrl_remove,
+	.driver = {
+		.name = MODULE_NAME,
+		.owner = THIS_MODULE,
+		.of_match_table = bcm2835_pinctrl_match,
+	},
+};
+module_platform_driver(bcm2835_pinctrl_driver);
+
+MODULE_AUTHOR("Chris Boot, Simon Arlott, Stephen Warren");
+MODULE_DESCRIPTION("BCM2835 Pin control driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index cc0f00d73d1..b446c964121 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -1,11 +1,8 @@
 /*
  * U300 GPIO module.
  *
- * Copyright (C) 2007-2011 ST-Ericsson AB
+ * Copyright (C) 2007-2012 ST-Ericsson AB
  * License terms: GNU General Public License (GPL) version 2
- * This can driver either of the two basic GPIO cores
- * available in the U300 platforms:
- * COH 901 335   - Used in DB3150 (U300 1.0) and DB3200 (U330 1.0)
  * COH 901 571/3 - Used in DB3210 (U365 2.0) and DB3350 (U335 1.0)
  * Author: Linus Walleij <linus.walleij@linaro.org>
  * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
@@ -24,19 +21,22 @@
 #include <linux/slab.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/pinctrl/pinconf-generic.h>
-#include <mach/gpio-u300.h>
+#include <linux/platform_data/pinctrl-coh901.h>
 #include "pinctrl-coh901.h"
 
+#define U300_GPIO_PORT_STRIDE				(0x30)
 /*
- * Register definitions for COH 901 335 variant
+ * Control Register 32bit (R/W)
+ * bit 15-9 (mask 0x0000FE00) contains the number of cores. 8*cores
+ * gives the number of GPIO pins.
+ * bit 8-2  (mask 0x000001FC) contains the core version ID.
  */
-#define U300_335_PORT_STRIDE				(0x1C)
-/* Port X Pin Data Register 32bit, this is both input and output (R/W) */
-#define U300_335_PXPDIR					(0x00)
-#define U300_335_PXPDOR					(0x00)
-/* Port X Pin Config Register 32bit (R/W) */
-#define U300_335_PXPCR					(0x04)
-/* This register layout is the same in both blocks */
+#define U300_GPIO_CR					(0x00)
+#define U300_GPIO_CR_SYNC_SEL_ENABLE			(0x00000002UL)
+#define U300_GPIO_CR_BLOCK_CLKRQ_ENABLE			(0x00000001UL)
+#define U300_GPIO_PXPDIR				(0x04)
+#define U300_GPIO_PXPDOR				(0x08)
+#define U300_GPIO_PXPCR					(0x0C)
 #define U300_GPIO_PXPCR_ALL_PINS_MODE_MASK		(0x0000FFFFUL)
 #define U300_GPIO_PXPCR_PIN_MODE_MASK			(0x00000003UL)
 #define U300_GPIO_PXPCR_PIN_MODE_SHIFT			(0x00000002UL)
@@ -44,53 +44,17 @@
 #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL	(0x00000001UL)
 #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_DRAIN	(0x00000002UL)
 #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_SOURCE	(0x00000003UL)
-/* Port X Interrupt Event Register 32bit (R/W) */
-#define U300_335_PXIEV					(0x08)
-/* Port X Interrupt Enable Register 32bit (R/W) */
-#define U300_335_PXIEN					(0x0C)
-/* Port X Interrupt Force Register 32bit (R/W) */
-#define U300_335_PXIFR					(0x10)
-/* Port X Interrupt Config Register 32bit (R/W) */
-#define U300_335_PXICR					(0x14)
-/* This register layout is the same in both blocks */
+#define U300_GPIO_PXPER					(0x10)
+#define U300_GPIO_PXPER_ALL_PULL_UP_DISABLE_MASK	(0x000000FFUL)
+#define U300_GPIO_PXPER_PULL_UP_DISABLE			(0x00000001UL)
+#define U300_GPIO_PXIEV					(0x14)
+#define U300_GPIO_PXIEN					(0x18)
+#define U300_GPIO_PXIFR					(0x1C)
+#define U300_GPIO_PXICR					(0x20)
 #define U300_GPIO_PXICR_ALL_IRQ_CONFIG_MASK		(0x000000FFUL)
 #define U300_GPIO_PXICR_IRQ_CONFIG_MASK			(0x00000001UL)
 #define U300_GPIO_PXICR_IRQ_CONFIG_FALLING_EDGE		(0x00000000UL)
 #define U300_GPIO_PXICR_IRQ_CONFIG_RISING_EDGE		(0x00000001UL)
-/* Port X Pull-up Enable Register 32bit (R/W) */
-#define U300_335_PXPER					(0x18)
-/* This register layout is the same in both blocks */
-#define U300_GPIO_PXPER_ALL_PULL_UP_DISABLE_MASK	(0x000000FFUL)
-#define U300_GPIO_PXPER_PULL_UP_DISABLE			(0x00000001UL)
-/* Control Register 32bit (R/W) */
-#define U300_335_CR					(0x54)
-#define U300_335_CR_BLOCK_CLOCK_ENABLE			(0x00000001UL)
-
-/*
- * Register definitions for COH 901 571 / 3 variant
- */
-#define U300_571_PORT_STRIDE				(0x30)
-/*
- * Control Register 32bit (R/W)
- * bit 15-9 (mask 0x0000FE00) contains the number of cores. 8*cores
- * gives the number of GPIO pins.
- * bit 8-2  (mask 0x000001FC) contains the core version ID.
- */
-#define U300_571_CR					(0x00)
-#define U300_571_CR_SYNC_SEL_ENABLE			(0x00000002UL)
-#define U300_571_CR_BLOCK_CLKRQ_ENABLE			(0x00000001UL)
-/*
- * These registers have the same layout and function as the corresponding
- * COH 901 335 registers, just at different offset.
- */
-#define U300_571_PXPDIR					(0x04)
-#define U300_571_PXPDOR					(0x08)
-#define U300_571_PXPCR					(0x0C)
-#define U300_571_PXPER					(0x10)
-#define U300_571_PXIEV					(0x14)
-#define U300_571_PXIEN					(0x18)
-#define U300_571_PXIFR					(0x1C)
-#define U300_571_PXICR					(0x20)
 
 /* 8 bits per port, no version has more than 7 ports */
 #define U300_GPIO_PINS_PER_PORT 8
@@ -149,8 +113,6 @@ struct u300_gpio_confdata {
 
 /* BS335 has seven ports of 8 bits each = GPIO pins 0..55 */
 #define BS335_GPIO_NUM_PORTS 7
-/* BS365 has five ports of 8 bits each = GPIO pins 0..39 */
-#define BS365_GPIO_NUM_PORTS 5
 
 #define U300_FLOATING_INPUT { \
 	.bias_mode = PIN_CONFIG_BIAS_HIGH_IMPEDANCE, \
@@ -172,7 +134,6 @@ struct u300_gpio_confdata {
 	.outval = 1, \
 }
 
-
 /* Initial configuration */
 static const struct __initconst u300_gpio_confdata
 bs335_gpio_config[BS335_GPIO_NUM_PORTS][U300_GPIO_PINS_PER_PORT] = {
@@ -255,66 +216,6 @@ bs335_gpio_config[BS335_GPIO_NUM_PORTS][U300_GPIO_PINS_PER_PORT] = {
 	}
 };
 
-static const struct __initconst u300_gpio_confdata
-bs365_gpio_config[BS365_GPIO_NUM_PORTS][U300_GPIO_PINS_PER_PORT] = {
-	/* Port 0, pins 0-7 */
-	{
-		U300_FLOATING_INPUT,
-		U300_OUTPUT_LOW,
-		U300_FLOATING_INPUT,
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-		U300_PULL_UP_INPUT,
-		U300_FLOATING_INPUT,
-	},
-	/* Port 1, pins 0-7 */
-	{
-		U300_OUTPUT_LOW,
-		U300_FLOATING_INPUT,
-		U300_OUTPUT_LOW,
-		U300_FLOATING_INPUT,
-		U300_FLOATING_INPUT,
-		U300_OUTPUT_HIGH,
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-	},
-	/* Port 2, pins 0-7 */
-	{
-		U300_FLOATING_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-	},
-	/* Port 3, pins 0-7 */
-	{
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-	},
-	/* Port 4, pins 0-7 */
-	{
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		U300_PULL_UP_INPUT,
-		/* These 4 pins doesn't exist on DB3210 */
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-		U300_OUTPUT_LOW,
-	}
-};
-
 /**
  * to_u300_gpio() - get the pointer to u300_gpio
  * @chip: the gpio chip member of the structure u300_gpio
@@ -716,13 +617,7 @@ static void __init u300_gpio_init_coh901571(struct u300_gpio *gpio,
 			const struct u300_gpio_confdata *conf;
 			int offset = (i*8) + j;
 
-			if (plat->variant == U300_GPIO_COH901571_3_BS335)
-				conf = &bs335_gpio_config[i][j];
-			else if (plat->variant == U300_GPIO_COH901571_3_BS365)
-				conf = &bs365_gpio_config[i][j];
-			else
-				break;
-
+			conf = &bs335_gpio_config[i][j];
 			u300_gpio_init_pin(gpio, offset, conf);
 		}
 	}
@@ -796,50 +691,27 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
 		goto err_no_ioremap;
 	}
 
-	if (plat->variant == U300_GPIO_COH901335) {
-		dev_info(gpio->dev,
-			 "initializing GPIO Controller COH 901 335\n");
-		gpio->stride = U300_335_PORT_STRIDE;
-		gpio->pcr = U300_335_PXPCR;
-		gpio->dor = U300_335_PXPDOR;
-		gpio->dir = U300_335_PXPDIR;
-		gpio->per = U300_335_PXPER;
-		gpio->icr = U300_335_PXICR;
-		gpio->ien = U300_335_PXIEN;
-		gpio->iev = U300_335_PXIEV;
-		ifr = U300_335_PXIFR;
-
-		/* Turn on the GPIO block */
-		writel(U300_335_CR_BLOCK_CLOCK_ENABLE,
-		       gpio->base + U300_335_CR);
-	} else if (plat->variant == U300_GPIO_COH901571_3_BS335 ||
-		   plat->variant == U300_GPIO_COH901571_3_BS365) {
-		dev_info(gpio->dev,
-			 "initializing GPIO Controller COH 901 571/3\n");
-		gpio->stride = U300_571_PORT_STRIDE;
-		gpio->pcr = U300_571_PXPCR;
-		gpio->dor = U300_571_PXPDOR;
-		gpio->dir = U300_571_PXPDIR;
-		gpio->per = U300_571_PXPER;
-		gpio->icr = U300_571_PXICR;
-		gpio->ien = U300_571_PXIEN;
-		gpio->iev = U300_571_PXIEV;
-		ifr = U300_571_PXIFR;
-
-		val = readl(gpio->base + U300_571_CR);
-		dev_info(gpio->dev, "COH901571/3 block version: %d, " \
-			 "number of cores: %d totalling %d pins\n",
-			 ((val & 0x000001FC) >> 2),
-			 ((val & 0x0000FE00) >> 9),
-			 ((val & 0x0000FE00) >> 9) * 8);
-		writel(U300_571_CR_BLOCK_CLKRQ_ENABLE,
-		       gpio->base + U300_571_CR);
-		u300_gpio_init_coh901571(gpio, plat);
-	} else {
-		dev_err(gpio->dev, "unknown block variant\n");
-		err = -ENODEV;
-		goto err_unknown_variant;
-	}
+	dev_info(gpio->dev,
+		 "initializing GPIO Controller COH 901 571/3\n");
+	gpio->stride = U300_GPIO_PORT_STRIDE;
+	gpio->pcr = U300_GPIO_PXPCR;
+	gpio->dor = U300_GPIO_PXPDOR;
+	gpio->dir = U300_GPIO_PXPDIR;
+	gpio->per = U300_GPIO_PXPER;
+	gpio->icr = U300_GPIO_PXICR;
+	gpio->ien = U300_GPIO_PXIEN;
+	gpio->iev = U300_GPIO_PXIEV;
+	ifr = U300_GPIO_PXIFR;
+
+	val = readl(gpio->base + U300_GPIO_CR);
+	dev_info(gpio->dev, "COH901571/3 block version: %d, " \
+		 "number of cores: %d totalling %d pins\n",
+		 ((val & 0x000001FC) >> 2),
+		 ((val & 0x0000FE00) >> 9),
+		 ((val & 0x0000FE00) >> 9) * 8);
+	writel(U300_GPIO_CR_BLOCK_CLKRQ_ENABLE,
+	       gpio->base + U300_GPIO_CR);
+	u300_gpio_init_coh901571(gpio, plat);
 
 	/* Add each port with its IRQ separately */
 	INIT_LIST_HEAD(&gpio->port_list);
@@ -906,7 +778,6 @@ err_no_pinctrl:
 err_no_chip:
 err_no_port:
 	u300_gpio_free_ports(gpio);
-err_unknown_variant:
 	iounmap(gpio->base);
 err_no_ioremap:
 	release_mem_region(gpio->memres->start, resource_size(gpio->memres));
@@ -923,16 +794,11 @@ err_no_clk:
 
 static int __exit u300_gpio_remove(struct platform_device *pdev)
 {
-	struct u300_gpio_platform *plat = dev_get_platdata(&pdev->dev);
 	struct u300_gpio *gpio = platform_get_drvdata(pdev);
 	int err;
 
 	/* Turn off the GPIO block */
-	if (plat->variant == U300_GPIO_COH901335)
-		writel(0x00000000U, gpio->base + U300_335_CR);
-	if (plat->variant == U300_GPIO_COH901571_3_BS335 ||
-	    plat->variant == U300_GPIO_COH901571_3_BS365)
-		writel(0x00000000U, gpio->base + U300_571_CR);
+	writel(0x00000000U, gpio->base + U300_GPIO_CR);
 
 	err = gpiochip_remove(&gpio->chip);
 	if (err < 0) {
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
new file mode 100644
index 00000000000..21362f48d37
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -0,0 +1,579 @@
+/*
+ * Exynos specific support for Samsung pinctrl/gpiolib driver with eint support.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ *		http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file contains the Samsung Exynos specific information required by the
+ * the Samsung pinctrl/gpiolib driver. It also includes the implementation of
+ * external gpio and wakeup interrupt support.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+
+#include <asm/mach/irq.h>
+
+#include "pinctrl-samsung.h"
+#include "pinctrl-exynos.h"
+
+/* list of external wakeup controllers supported */
+static const struct of_device_id exynos_wkup_irq_ids[] = {
+	{ .compatible = "samsung,exynos4210-wakeup-eint", },
+};
+
+static void exynos_gpio_irq_unmask(struct irq_data *irqd)
+{
+	struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
+	struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
+	unsigned long reg_mask = d->ctrl->geint_mask + edata->eint_offset;
+	unsigned long mask;
+
+	mask = readl(d->virt_base + reg_mask);
+	mask &= ~(1 << edata->pin);
+	writel(mask, d->virt_base + reg_mask);
+}
+
+static void exynos_gpio_irq_mask(struct irq_data *irqd)
+{
+	struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
+	struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
+	unsigned long reg_mask = d->ctrl->geint_mask + edata->eint_offset;
+	unsigned long mask;
+
+	mask = readl(d->virt_base + reg_mask);
+	mask |= 1 << edata->pin;
+	writel(mask, d->virt_base + reg_mask);
+}
+
+static void exynos_gpio_irq_ack(struct irq_data *irqd)
+{
+	struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
+	struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
+	unsigned long reg_pend = d->ctrl->geint_pend + edata->eint_offset;
+
+	writel(1 << edata->pin, d->virt_base + reg_pend);
+}
+
+static int exynos_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
+{
+	struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
+	struct samsung_pin_ctrl *ctrl = d->ctrl;
+	struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
+	struct samsung_pin_bank *bank = edata->bank;
+	unsigned int shift = EXYNOS_EINT_CON_LEN * edata->pin;
+	unsigned int con, trig_type;
+	unsigned long reg_con = ctrl->geint_con + edata->eint_offset;
+	unsigned int mask;
+
+	switch (type) {
+	case IRQ_TYPE_EDGE_RISING:
+		trig_type = EXYNOS_EINT_EDGE_RISING;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		trig_type = EXYNOS_EINT_EDGE_FALLING;
+		break;
+	case IRQ_TYPE_EDGE_BOTH:
+		trig_type = EXYNOS_EINT_EDGE_BOTH;
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		trig_type = EXYNOS_EINT_LEVEL_HIGH;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		trig_type = EXYNOS_EINT_LEVEL_LOW;
+		break;
+	default:
+		pr_err("unsupported external interrupt type\n");
+		return -EINVAL;
+	}
+
+	if (type & IRQ_TYPE_EDGE_BOTH)
+		__irq_set_handler_locked(irqd->irq, handle_edge_irq);
+	else
+		__irq_set_handler_locked(irqd->irq, handle_level_irq);
+
+	con = readl(d->virt_base + reg_con);
+	con &= ~(EXYNOS_EINT_CON_MASK << shift);
+	con |= trig_type << shift;
+	writel(con, d->virt_base + reg_con);
+
+	reg_con = bank->pctl_offset;
+	shift = edata->pin * bank->func_width;
+	mask = (1 << bank->func_width) - 1;
+
+	con = readl(d->virt_base + reg_con);
+	con &= ~(mask << shift);
+	con |= EXYNOS_EINT_FUNC << shift;
+	writel(con, d->virt_base + reg_con);
+
+	return 0;
+}
+
+/*
+ * irq_chip for gpio interrupts.
+ */
+static struct irq_chip exynos_gpio_irq_chip = {
+	.name		= "exynos_gpio_irq_chip",
+	.irq_unmask	= exynos_gpio_irq_unmask,
+	.irq_mask	= exynos_gpio_irq_mask,
+	.irq_ack		= exynos_gpio_irq_ack,
+	.irq_set_type	= exynos_gpio_irq_set_type,
+};
+
+/*
+ * given a controller-local external gpio interrupt number, prepare the handler
+ * data for it.
+ */
+static struct exynos_geint_data *exynos_get_eint_data(irq_hw_number_t hw,
+				struct samsung_pinctrl_drv_data *d)
+{
+	struct samsung_pin_bank *bank = d->ctrl->pin_banks;
+	struct exynos_geint_data *eint_data;
+	unsigned int nr_banks = d->ctrl->nr_banks, idx;
+	unsigned int irq_base = 0, eint_offset = 0;
+
+	if (hw >= d->ctrl->nr_gint) {
+		dev_err(d->dev, "unsupported ext-gpio interrupt\n");
+		return NULL;
+	}
+
+	for (idx = 0; idx < nr_banks; idx++, bank++) {
+		if (bank->eint_type != EINT_TYPE_GPIO)
+			continue;
+		if ((hw >= irq_base) && (hw < (irq_base + bank->nr_pins)))
+			break;
+		irq_base += bank->nr_pins;
+		eint_offset += 4;
+	}
+
+	if (idx == nr_banks) {
+		dev_err(d->dev, "pin bank not found for ext-gpio interrupt\n");
+		return NULL;
+	}
+
+	eint_data = devm_kzalloc(d->dev, sizeof(*eint_data), GFP_KERNEL);
+	if (!eint_data) {
+		dev_err(d->dev, "no memory for eint-gpio data\n");
+		return NULL;
+	}
+
+	eint_data->bank	= bank;
+	eint_data->pin = hw - irq_base;
+	eint_data->eint_offset = eint_offset;
+	return eint_data;
+}
+
+static int exynos_gpio_irq_map(struct irq_domain *h, unsigned int virq,
+					irq_hw_number_t hw)
+{
+	struct samsung_pinctrl_drv_data *d = h->host_data;
+	struct exynos_geint_data *eint_data;
+
+	eint_data = exynos_get_eint_data(hw, d);
+	if (!eint_data)
+		return -EINVAL;
+
+	irq_set_handler_data(virq, eint_data);
+	irq_set_chip_data(virq, h->host_data);
+	irq_set_chip_and_handler(virq, &exynos_gpio_irq_chip,
+					handle_level_irq);
+	set_irq_flags(virq, IRQF_VALID);
+	return 0;
+}
+
+static void exynos_gpio_irq_unmap(struct irq_domain *h, unsigned int virq)
+{
+	struct samsung_pinctrl_drv_data *d = h->host_data;
+	struct exynos_geint_data *eint_data;
+
+	eint_data = irq_get_handler_data(virq);
+	devm_kfree(d->dev, eint_data);
+}
+
+/*
+ * irq domain callbacks for external gpio interrupt controller.
+ */
+static const struct irq_domain_ops exynos_gpio_irqd_ops = {
+	.map	= exynos_gpio_irq_map,
+	.unmap	= exynos_gpio_irq_unmap,
+	.xlate	= irq_domain_xlate_twocell,
+};
+
+static irqreturn_t exynos_eint_gpio_irq(int irq, void *data)
+{
+	struct samsung_pinctrl_drv_data *d = data;
+	struct samsung_pin_ctrl *ctrl = d->ctrl;
+	struct samsung_pin_bank *bank = ctrl->pin_banks;
+	unsigned int svc, group, pin, virq;
+
+	svc = readl(d->virt_base + ctrl->svc);
+	group = EXYNOS_SVC_GROUP(svc);
+	pin = svc & EXYNOS_SVC_NUM_MASK;
+
+	if (!group)
+		return IRQ_HANDLED;
+	bank += (group - 1);
+
+	virq = irq_linear_revmap(d->gpio_irqd, bank->irq_base + pin);
+	if (!virq)
+		return IRQ_NONE;
+	generic_handle_irq(virq);
+	return IRQ_HANDLED;
+}
+
+/*
+ * exynos_eint_gpio_init() - setup handling of external gpio interrupts.
+ * @d: driver data of samsung pinctrl driver.
+ */
+static int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
+{
+	struct device *dev = d->dev;
+	unsigned int ret;
+
+	if (!d->irq) {
+		dev_err(dev, "irq number not available\n");
+		return -EINVAL;
+	}
+
+	ret = devm_request_irq(dev, d->irq, exynos_eint_gpio_irq,
+					0, dev_name(dev), d);
+	if (ret) {
+		dev_err(dev, "irq request failed\n");
+		return -ENXIO;
+	}
+
+	d->gpio_irqd = irq_domain_add_linear(dev->of_node, d->ctrl->nr_gint,
+				&exynos_gpio_irqd_ops, d);
+	if (!d->gpio_irqd) {
+		dev_err(dev, "gpio irq domain allocation failed\n");
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static void exynos_wkup_irq_unmask(struct irq_data *irqd)
+{
+	struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
+	unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
+	unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
+	unsigned long reg_mask = d->ctrl->weint_mask + (bank << 2);
+	unsigned long mask;
+
+	mask = readl(d->virt_base + reg_mask);
+	mask &= ~(1 << pin);
+	writel(mask, d->virt_base + reg_mask);
+}
+
+static void exynos_wkup_irq_mask(struct irq_data *irqd)
+{
+	struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
+	unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
+	unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
+	unsigned long reg_mask = d->ctrl->weint_mask + (bank << 2);
+	unsigned long mask;
+
+	mask = readl(d->virt_base + reg_mask);
+	mask |= 1 << pin;
+	writel(mask, d->virt_base + reg_mask);
+}
+
+static void exynos_wkup_irq_ack(struct irq_data *irqd)
+{
+	struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
+	unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
+	unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
+	unsigned long pend = d->ctrl->weint_pend + (bank << 2);
+
+	writel(1 << pin, d->virt_base + pend);
+}
+
+static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type)
+{
+	struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
+	unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
+	unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
+	unsigned long reg_con = d->ctrl->weint_con + (bank << 2);
+	unsigned long shift = EXYNOS_EINT_CON_LEN * pin;
+	unsigned long con, trig_type;
+
+	switch (type) {
+	case IRQ_TYPE_EDGE_RISING:
+		trig_type = EXYNOS_EINT_EDGE_RISING;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		trig_type = EXYNOS_EINT_EDGE_FALLING;
+		break;
+	case IRQ_TYPE_EDGE_BOTH:
+		trig_type = EXYNOS_EINT_EDGE_BOTH;
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		trig_type = EXYNOS_EINT_LEVEL_HIGH;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		trig_type = EXYNOS_EINT_LEVEL_LOW;
+		break;
+	default:
+		pr_err("unsupported external interrupt type\n");
+		return -EINVAL;
+	}
+
+	if (type & IRQ_TYPE_EDGE_BOTH)
+		__irq_set_handler_locked(irqd->irq, handle_edge_irq);
+	else
+		__irq_set_handler_locked(irqd->irq, handle_level_irq);
+
+	con = readl(d->virt_base + reg_con);
+	con &= ~(EXYNOS_EINT_CON_MASK << shift);
+	con |= trig_type << shift;
+	writel(con, d->virt_base + reg_con);
+	return 0;
+}
+
+/*
+ * irq_chip for wakeup interrupts
+ */
+static struct irq_chip exynos_wkup_irq_chip = {
+	.name	= "exynos_wkup_irq_chip",
+	.irq_unmask	= exynos_wkup_irq_unmask,
+	.irq_mask	= exynos_wkup_irq_mask,
+	.irq_ack	= exynos_wkup_irq_ack,
+	.irq_set_type	= exynos_wkup_irq_set_type,
+};
+
+/* interrupt handler for wakeup interrupts 0..15 */
+static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
+{
+	struct exynos_weint_data *eintd = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_get_chip(irq);
+	int eint_irq;
+
+	chained_irq_enter(chip, desc);
+	chip->irq_mask(&desc->irq_data);
+
+	if (chip->irq_ack)
+		chip->irq_ack(&desc->irq_data);
+
+	eint_irq = irq_linear_revmap(eintd->domain, eintd->irq);
+	generic_handle_irq(eint_irq);
+	chip->irq_unmask(&desc->irq_data);
+	chained_irq_exit(chip, desc);
+}
+
+static inline void exynos_irq_demux_eint(int irq_base, unsigned long pend,
+					struct irq_domain *domain)
+{
+	unsigned int irq;
+
+	while (pend) {
+		irq = fls(pend) - 1;
+		generic_handle_irq(irq_find_mapping(domain, irq_base + irq));
+		pend &= ~(1 << irq);
+	}
+}
+
+/* interrupt handler for wakeup interrupt 16 */
+static void exynos_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
+{
+	struct irq_chip *chip = irq_get_chip(irq);
+	struct exynos_weint_data *eintd = irq_get_handler_data(irq);
+	struct samsung_pinctrl_drv_data *d = eintd->domain->host_data;
+	unsigned long pend;
+	unsigned long mask;
+
+	chained_irq_enter(chip, desc);
+	pend = readl(d->virt_base + d->ctrl->weint_pend + 0x8);
+	mask = readl(d->virt_base + d->ctrl->weint_mask + 0x8);
+	exynos_irq_demux_eint(16, pend & ~mask, eintd->domain);
+	pend = readl(d->virt_base + d->ctrl->weint_pend + 0xC);
+	mask = readl(d->virt_base + d->ctrl->weint_mask + 0xC);
+	exynos_irq_demux_eint(24, pend & ~mask, eintd->domain);
+	chained_irq_exit(chip, desc);
+}
+
+static int exynos_wkup_irq_map(struct irq_domain *h, unsigned int virq,
+					irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(virq, &exynos_wkup_irq_chip, handle_level_irq);
+	irq_set_chip_data(virq, h->host_data);
+	set_irq_flags(virq, IRQF_VALID);
+	return 0;
+}
+
+/*
+ * irq domain callbacks for external wakeup interrupt controller.
+ */
+static const struct irq_domain_ops exynos_wkup_irqd_ops = {
+	.map	= exynos_wkup_irq_map,
+	.xlate	= irq_domain_xlate_twocell,
+};
+
+/*
+ * exynos_eint_wkup_init() - setup handling of external wakeup interrupts.
+ * @d: driver data of samsung pinctrl driver.
+ */
+static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
+{
+	struct device *dev = d->dev;
+	struct device_node *wkup_np = NULL;
+	struct device_node *np;
+	struct exynos_weint_data *weint_data;
+	int idx, irq;
+
+	for_each_child_of_node(dev->of_node, np) {
+		if (of_match_node(exynos_wkup_irq_ids, np)) {
+			wkup_np = np;
+			break;
+		}
+	}
+	if (!wkup_np)
+		return -ENODEV;
+
+	d->wkup_irqd = irq_domain_add_linear(wkup_np, d->ctrl->nr_wint,
+				&exynos_wkup_irqd_ops, d);
+	if (!d->wkup_irqd) {
+		dev_err(dev, "wakeup irq domain allocation failed\n");
+		return -ENXIO;
+	}
+
+	weint_data = devm_kzalloc(dev, sizeof(*weint_data) * 17, GFP_KERNEL);
+	if (!weint_data) {
+		dev_err(dev, "could not allocate memory for weint_data\n");
+		return -ENOMEM;
+	}
+
+	irq = irq_of_parse_and_map(wkup_np, 16);
+	if (irq) {
+		weint_data[16].domain = d->wkup_irqd;
+		irq_set_chained_handler(irq, exynos_irq_demux_eint16_31);
+		irq_set_handler_data(irq, &weint_data[16]);
+	} else {
+		dev_err(dev, "irq number for EINT16-32 not found\n");
+	}
+
+	for (idx = 0; idx < 16; idx++) {
+		weint_data[idx].domain = d->wkup_irqd;
+		weint_data[idx].irq = idx;
+
+		irq = irq_of_parse_and_map(wkup_np, idx);
+		if (irq) {
+			irq_set_handler_data(irq, &weint_data[idx]);
+			irq_set_chained_handler(irq, exynos_irq_eint0_15);
+		} else {
+			dev_err(dev, "irq number for eint-%x not found\n", idx);
+		}
+	}
+	return 0;
+}
+
+/* pin banks of exynos4210 pin-controller 0 */
+static struct samsung_pin_bank exynos4210_pin_banks0[] = {
+	EXYNOS_PIN_BANK_EINTG(0x000, EXYNOS4210_GPIO_A0, "gpa0"),
+	EXYNOS_PIN_BANK_EINTG(0x020, EXYNOS4210_GPIO_A1, "gpa1"),
+	EXYNOS_PIN_BANK_EINTG(0x040, EXYNOS4210_GPIO_B, "gpb"),
+	EXYNOS_PIN_BANK_EINTG(0x060, EXYNOS4210_GPIO_C0, "gpc0"),
+	EXYNOS_PIN_BANK_EINTG(0x080, EXYNOS4210_GPIO_C1, "gpc1"),
+	EXYNOS_PIN_BANK_EINTG(0x0A0, EXYNOS4210_GPIO_D0, "gpd0"),
+	EXYNOS_PIN_BANK_EINTG(0x0C0, EXYNOS4210_GPIO_D1, "gpd1"),
+	EXYNOS_PIN_BANK_EINTG(0x0E0, EXYNOS4210_GPIO_E0, "gpe0"),
+	EXYNOS_PIN_BANK_EINTG(0x100, EXYNOS4210_GPIO_E1, "gpe1"),
+	EXYNOS_PIN_BANK_EINTG(0x120, EXYNOS4210_GPIO_E2, "gpe2"),
+	EXYNOS_PIN_BANK_EINTG(0x140, EXYNOS4210_GPIO_E3, "gpe3"),
+	EXYNOS_PIN_BANK_EINTG(0x160, EXYNOS4210_GPIO_E4, "gpe4"),
+	EXYNOS_PIN_BANK_EINTG(0x180, EXYNOS4210_GPIO_F0, "gpf0"),
+	EXYNOS_PIN_BANK_EINTG(0x1A0, EXYNOS4210_GPIO_F1, "gpf1"),
+	EXYNOS_PIN_BANK_EINTG(0x1C0, EXYNOS4210_GPIO_F2, "gpf2"),
+	EXYNOS_PIN_BANK_EINTG(0x1E0, EXYNOS4210_GPIO_F3, "gpf3"),
+};
+
+/* pin banks of exynos4210 pin-controller 1 */
+static struct samsung_pin_bank exynos4210_pin_banks1[] = {
+	EXYNOS_PIN_BANK_EINTG(0x000, EXYNOS4210_GPIO_J0, "gpj0"),
+	EXYNOS_PIN_BANK_EINTG(0x020, EXYNOS4210_GPIO_J1, "gpj1"),
+	EXYNOS_PIN_BANK_EINTG(0x040, EXYNOS4210_GPIO_K0, "gpk0"),
+	EXYNOS_PIN_BANK_EINTG(0x060, EXYNOS4210_GPIO_K1, "gpk1"),
+	EXYNOS_PIN_BANK_EINTG(0x080, EXYNOS4210_GPIO_K2, "gpk2"),
+	EXYNOS_PIN_BANK_EINTG(0x0A0, EXYNOS4210_GPIO_K3, "gpk3"),
+	EXYNOS_PIN_BANK_EINTG(0x0C0, EXYNOS4210_GPIO_L0, "gpl0"),
+	EXYNOS_PIN_BANK_EINTG(0x0E0, EXYNOS4210_GPIO_L1, "gpl1"),
+	EXYNOS_PIN_BANK_EINTG(0x100, EXYNOS4210_GPIO_L2, "gpl2"),
+	EXYNOS_PIN_BANK_EINTN(0x120, EXYNOS4210_GPIO_Y0, "gpy0"),
+	EXYNOS_PIN_BANK_EINTN(0x140, EXYNOS4210_GPIO_Y1, "gpy1"),
+	EXYNOS_PIN_BANK_EINTN(0x160, EXYNOS4210_GPIO_Y2, "gpy2"),
+	EXYNOS_PIN_BANK_EINTN(0x180, EXYNOS4210_GPIO_Y3, "gpy3"),
+	EXYNOS_PIN_BANK_EINTN(0x1A0, EXYNOS4210_GPIO_Y4, "gpy4"),
+	EXYNOS_PIN_BANK_EINTN(0x1C0, EXYNOS4210_GPIO_Y5, "gpy5"),
+	EXYNOS_PIN_BANK_EINTN(0x1E0, EXYNOS4210_GPIO_Y6, "gpy6"),
+	EXYNOS_PIN_BANK_EINTN(0xC00, EXYNOS4210_GPIO_X0, "gpx0"),
+	EXYNOS_PIN_BANK_EINTN(0xC20, EXYNOS4210_GPIO_X1, "gpx1"),
+	EXYNOS_PIN_BANK_EINTN(0xC40, EXYNOS4210_GPIO_X2, "gpx2"),
+	EXYNOS_PIN_BANK_EINTN(0xC60, EXYNOS4210_GPIO_X3, "gpx3"),
+};
+
+/* pin banks of exynos4210 pin-controller 2 */
+static struct samsung_pin_bank exynos4210_pin_banks2[] = {
+	EXYNOS_PIN_BANK_EINTN(0x000, EXYNOS4210_GPIO_Z, "gpz"),
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos4210 SoC. Exynos4210 SoC includes
+ * three gpio/pin-mux/pinconfig controllers.
+ */
+struct samsung_pin_ctrl exynos4210_pin_ctrl[] = {
+	{
+		/* pin-controller instance 0 data */
+		.pin_banks	= exynos4210_pin_banks0,
+		.nr_banks	= ARRAY_SIZE(exynos4210_pin_banks0),
+		.base		= EXYNOS4210_GPIO_A0_START,
+		.nr_pins	= EXYNOS4210_GPIOA_NR_PINS,
+		.nr_gint	= EXYNOS4210_GPIOA_NR_GINT,
+		.geint_con	= EXYNOS_GPIO_ECON_OFFSET,
+		.geint_mask	= EXYNOS_GPIO_EMASK_OFFSET,
+		.geint_pend	= EXYNOS_GPIO_EPEND_OFFSET,
+		.svc		= EXYNOS_SVC_OFFSET,
+		.eint_gpio_init = exynos_eint_gpio_init,
+		.label		= "exynos4210-gpio-ctrl0",
+	}, {
+		/* pin-controller instance 1 data */
+		.pin_banks	= exynos4210_pin_banks1,
+		.nr_banks	= ARRAY_SIZE(exynos4210_pin_banks1),
+		.base		= EXYNOS4210_GPIOA_NR_PINS,
+		.nr_pins	= EXYNOS4210_GPIOB_NR_PINS,
+		.nr_gint	= EXYNOS4210_GPIOB_NR_GINT,
+		.nr_wint	= 32,
+		.geint_con	= EXYNOS_GPIO_ECON_OFFSET,
+		.geint_mask	= EXYNOS_GPIO_EMASK_OFFSET,
+		.geint_pend	= EXYNOS_GPIO_EPEND_OFFSET,
+		.weint_con	= EXYNOS_WKUP_ECON_OFFSET,
+		.weint_mask	= EXYNOS_WKUP_EMASK_OFFSET,
+		.weint_pend	= EXYNOS_WKUP_EPEND_OFFSET,
+		.svc		= EXYNOS_SVC_OFFSET,
+		.eint_gpio_init = exynos_eint_gpio_init,
+		.eint_wkup_init = exynos_eint_wkup_init,
+		.label		= "exynos4210-gpio-ctrl1",
+	}, {
+		/* pin-controller instance 2 data */
+		.pin_banks	= exynos4210_pin_banks2,
+		.nr_banks	= ARRAY_SIZE(exynos4210_pin_banks2),
+		.base		= EXYNOS4210_GPIOA_NR_PINS +
+					EXYNOS4210_GPIOB_NR_PINS,
+		.nr_pins	= EXYNOS4210_GPIOC_NR_PINS,
+		.label		= "exynos4210-gpio-ctrl2",
+	},
+};
diff --git a/drivers/pinctrl/pinctrl-exynos.h b/drivers/pinctrl/pinctrl-exynos.h
new file mode 100644
index 00000000000..31d0a06174e
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-exynos.h
@@ -0,0 +1,218 @@
+/*
+ * Exynos specific definitions for Samsung pinctrl and gpiolib driver.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ *		http://www.linaro.org
+ *
+ * This file contains the Exynos specific definitions for the Samsung
+ * pinctrl/gpiolib interface drivers.
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define EXYNOS_GPIO_START(__gpio)	((__gpio##_START) + (__gpio##_NR))
+
+#define EXYNOS4210_GPIO_A0_NR	(8)
+#define EXYNOS4210_GPIO_A1_NR	(6)
+#define EXYNOS4210_GPIO_B_NR	(8)
+#define EXYNOS4210_GPIO_C0_NR	(5)
+#define EXYNOS4210_GPIO_C1_NR	(5)
+#define EXYNOS4210_GPIO_D0_NR	(4)
+#define EXYNOS4210_GPIO_D1_NR	(4)
+#define EXYNOS4210_GPIO_E0_NR	(5)
+#define EXYNOS4210_GPIO_E1_NR	(8)
+#define EXYNOS4210_GPIO_E2_NR	(6)
+#define EXYNOS4210_GPIO_E3_NR	(8)
+#define EXYNOS4210_GPIO_E4_NR	(8)
+#define EXYNOS4210_GPIO_F0_NR	(8)
+#define EXYNOS4210_GPIO_F1_NR	(8)
+#define EXYNOS4210_GPIO_F2_NR	(8)
+#define EXYNOS4210_GPIO_F3_NR	(6)
+#define EXYNOS4210_GPIO_J0_NR	(8)
+#define EXYNOS4210_GPIO_J1_NR	(5)
+#define EXYNOS4210_GPIO_K0_NR	(7)
+#define EXYNOS4210_GPIO_K1_NR	(7)
+#define EXYNOS4210_GPIO_K2_NR	(7)
+#define EXYNOS4210_GPIO_K3_NR	(7)
+#define EXYNOS4210_GPIO_L0_NR	(8)
+#define EXYNOS4210_GPIO_L1_NR	(3)
+#define EXYNOS4210_GPIO_L2_NR	(8)
+#define EXYNOS4210_GPIO_Y0_NR	(6)
+#define EXYNOS4210_GPIO_Y1_NR	(4)
+#define EXYNOS4210_GPIO_Y2_NR	(6)
+#define EXYNOS4210_GPIO_Y3_NR	(8)
+#define EXYNOS4210_GPIO_Y4_NR	(8)
+#define EXYNOS4210_GPIO_Y5_NR	(8)
+#define EXYNOS4210_GPIO_Y6_NR	(8)
+#define EXYNOS4210_GPIO_X0_NR	(8)
+#define EXYNOS4210_GPIO_X1_NR	(8)
+#define EXYNOS4210_GPIO_X2_NR	(8)
+#define EXYNOS4210_GPIO_X3_NR	(8)
+#define EXYNOS4210_GPIO_Z_NR	(7)
+
+enum exynos4210_gpio_xa_start {
+	EXYNOS4210_GPIO_A0_START	= 0,
+	EXYNOS4210_GPIO_A1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_A0),
+	EXYNOS4210_GPIO_B_START		= EXYNOS_GPIO_START(EXYNOS4210_GPIO_A1),
+	EXYNOS4210_GPIO_C0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_B),
+	EXYNOS4210_GPIO_C1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_C0),
+	EXYNOS4210_GPIO_D0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_C1),
+	EXYNOS4210_GPIO_D1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_D0),
+	EXYNOS4210_GPIO_E0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_D1),
+	EXYNOS4210_GPIO_E1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_E0),
+	EXYNOS4210_GPIO_E2_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_E1),
+	EXYNOS4210_GPIO_E3_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_E2),
+	EXYNOS4210_GPIO_E4_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_E3),
+	EXYNOS4210_GPIO_F0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_E4),
+	EXYNOS4210_GPIO_F1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_F0),
+	EXYNOS4210_GPIO_F2_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_F1),
+	EXYNOS4210_GPIO_F3_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_F2),
+};
+
+enum exynos4210_gpio_xb_start {
+	EXYNOS4210_GPIO_J0_START	= 0,
+	EXYNOS4210_GPIO_J1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_J0),
+	EXYNOS4210_GPIO_K0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_J1),
+	EXYNOS4210_GPIO_K1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_K0),
+	EXYNOS4210_GPIO_K2_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_K1),
+	EXYNOS4210_GPIO_K3_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_K2),
+	EXYNOS4210_GPIO_L0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_K3),
+	EXYNOS4210_GPIO_L1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_L0),
+	EXYNOS4210_GPIO_L2_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_L1),
+	EXYNOS4210_GPIO_Y0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_L2),
+	EXYNOS4210_GPIO_Y1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y0),
+	EXYNOS4210_GPIO_Y2_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y1),
+	EXYNOS4210_GPIO_Y3_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y2),
+	EXYNOS4210_GPIO_Y4_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y3),
+	EXYNOS4210_GPIO_Y5_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y4),
+	EXYNOS4210_GPIO_Y6_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y5),
+	EXYNOS4210_GPIO_X0_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y6),
+	EXYNOS4210_GPIO_X1_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_X0),
+	EXYNOS4210_GPIO_X2_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_X1),
+	EXYNOS4210_GPIO_X3_START	= EXYNOS_GPIO_START(EXYNOS4210_GPIO_X2),
+};
+
+enum exynos4210_gpio_xc_start {
+	EXYNOS4210_GPIO_Z_START		= 0,
+};
+
+#define	EXYNOS4210_GPIO_A0_IRQ		EXYNOS4210_GPIO_A0_START
+#define	EXYNOS4210_GPIO_A1_IRQ		EXYNOS4210_GPIO_A1_START
+#define	EXYNOS4210_GPIO_B_IRQ		EXYNOS4210_GPIO_B_START
+#define	EXYNOS4210_GPIO_C0_IRQ		EXYNOS4210_GPIO_C0_START
+#define	EXYNOS4210_GPIO_C1_IRQ		EXYNOS4210_GPIO_C1_START
+#define	EXYNOS4210_GPIO_D0_IRQ		EXYNOS4210_GPIO_D0_START
+#define	EXYNOS4210_GPIO_D1_IRQ		EXYNOS4210_GPIO_D1_START
+#define	EXYNOS4210_GPIO_E0_IRQ		EXYNOS4210_GPIO_E0_START
+#define	EXYNOS4210_GPIO_E1_IRQ		EXYNOS4210_GPIO_E1_START
+#define	EXYNOS4210_GPIO_E2_IRQ		EXYNOS4210_GPIO_E2_START
+#define	EXYNOS4210_GPIO_E3_IRQ		EXYNOS4210_GPIO_E3_START
+#define	EXYNOS4210_GPIO_E4_IRQ		EXYNOS4210_GPIO_E4_START
+#define	EXYNOS4210_GPIO_F0_IRQ		EXYNOS4210_GPIO_F0_START
+#define	EXYNOS4210_GPIO_F1_IRQ		EXYNOS4210_GPIO_F1_START
+#define	EXYNOS4210_GPIO_F2_IRQ		EXYNOS4210_GPIO_F2_START
+#define	EXYNOS4210_GPIO_F3_IRQ		EXYNOS4210_GPIO_F3_START
+#define	EXYNOS4210_GPIO_J0_IRQ		EXYNOS4210_GPIO_J0_START
+#define	EXYNOS4210_GPIO_J1_IRQ		EXYNOS4210_GPIO_J1_START
+#define	EXYNOS4210_GPIO_K0_IRQ		EXYNOS4210_GPIO_K0_START
+#define	EXYNOS4210_GPIO_K1_IRQ		EXYNOS4210_GPIO_K1_START
+#define	EXYNOS4210_GPIO_K2_IRQ		EXYNOS4210_GPIO_K2_START
+#define	EXYNOS4210_GPIO_K3_IRQ		EXYNOS4210_GPIO_K3_START
+#define	EXYNOS4210_GPIO_L0_IRQ		EXYNOS4210_GPIO_L0_START
+#define	EXYNOS4210_GPIO_L1_IRQ		EXYNOS4210_GPIO_L1_START
+#define	EXYNOS4210_GPIO_L2_IRQ		EXYNOS4210_GPIO_L2_START
+#define	EXYNOS4210_GPIO_Z_IRQ		EXYNOS4210_GPIO_Z_START
+
+#define EXYNOS4210_GPIOA_NR_PINS	EXYNOS_GPIO_START(EXYNOS4210_GPIO_F3)
+#define EXYNOS4210_GPIOA_NR_GINT	EXYNOS_GPIO_START(EXYNOS4210_GPIO_F3)
+#define EXYNOS4210_GPIOB_NR_PINS	EXYNOS_GPIO_START(EXYNOS4210_GPIO_X3)
+#define EXYNOS4210_GPIOB_NR_GINT	EXYNOS_GPIO_START(EXYNOS4210_GPIO_L2)
+#define EXYNOS4210_GPIOC_NR_PINS	EXYNOS_GPIO_START(EXYNOS4210_GPIO_Z)
+
+/* External GPIO and wakeup interrupt related definitions */
+#define EXYNOS_GPIO_ECON_OFFSET		0x700
+#define EXYNOS_GPIO_EMASK_OFFSET	0x900
+#define EXYNOS_GPIO_EPEND_OFFSET	0xA00
+#define EXYNOS_WKUP_ECON_OFFSET		0xE00
+#define EXYNOS_WKUP_EMASK_OFFSET	0xF00
+#define EXYNOS_WKUP_EPEND_OFFSET	0xF40
+#define EXYNOS_SVC_OFFSET		0xB08
+#define EXYNOS_EINT_FUNC		0xF
+
+/* helpers to access interrupt service register */
+#define EXYNOS_SVC_GROUP_SHIFT		3
+#define EXYNOS_SVC_GROUP_MASK		0x1f
+#define EXYNOS_SVC_NUM_MASK		7
+#define EXYNOS_SVC_GROUP(x)		((x >> EXYNOS_SVC_GROUP_SHIFT) & \
+						EXYNOS_SVC_GROUP_MASK)
+
+/* Exynos specific external interrupt trigger types */
+#define EXYNOS_EINT_LEVEL_LOW		0
+#define EXYNOS_EINT_LEVEL_HIGH		1
+#define EXYNOS_EINT_EDGE_FALLING	2
+#define EXYNOS_EINT_EDGE_RISING		3
+#define EXYNOS_EINT_EDGE_BOTH		4
+#define EXYNOS_EINT_CON_MASK		0xF
+#define EXYNOS_EINT_CON_LEN		4
+
+#define EXYNOS_EINT_MAX_PER_BANK	8
+#define EXYNOS_EINT_NR_WKUP_EINT
+
+#define EXYNOS_PIN_BANK_EINTN(reg, __gpio, id)		\
+	{						\
+		.pctl_offset	= reg,			\
+		.pin_base	= (__gpio##_START),	\
+		.nr_pins	= (__gpio##_NR),	\
+		.func_width	= 4,			\
+		.pud_width	= 2,			\
+		.drv_width	= 2,			\
+		.conpdn_width	= 2,			\
+		.pudpdn_width	= 2,			\
+		.eint_type	= EINT_TYPE_NONE,	\
+		.name		= id			\
+	}
+
+#define EXYNOS_PIN_BANK_EINTG(reg, __gpio, id)		\
+	{						\
+		.pctl_offset	= reg,			\
+		.pin_base	= (__gpio##_START),	\
+		.nr_pins	= (__gpio##_NR),	\
+		.func_width	= 4,			\
+		.pud_width	= 2,			\
+		.drv_width	= 2,			\
+		.conpdn_width	= 2,			\
+		.pudpdn_width	= 2,			\
+		.eint_type	= EINT_TYPE_GPIO,	\
+		.irq_base	= (__gpio##_IRQ),	\
+		.name		= id			\
+	}
+
+/**
+ * struct exynos_geint_data: gpio eint specific data for irq_chip callbacks.
+ * @bank: pin bank from which this gpio interrupt originates.
+ * @pin: pin number within the bank.
+ * @eint_offset: offset to be added to the con/pend/mask register bank base.
+ */
+struct exynos_geint_data {
+	struct samsung_pin_bank	*bank;
+	u32			pin;
+	u32			eint_offset;
+};
+
+/**
+ * struct exynos_weint_data: irq specific data for all the wakeup interrupts
+ * generated by the external wakeup interrupt controller.
+ * @domain: irq domain representing the external wakeup interrupts
+ * @irq: interrupt number within the domain.
+ */
+struct exynos_weint_data {
+	struct irq_domain	*domain;
+	u32			irq;
+};
diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index 44e97265cd7..63866d95357 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -432,7 +432,7 @@ static int __devinit imx_pinctrl_parse_groups(struct device_node *np,
 {
 	unsigned int pin_func_id;
 	int ret, size;
-	const const __be32 *list;
+	const __be32 *list;
 	int i, j;
 	u32 config;
 
diff --git a/drivers/pinctrl/pinctrl-imx23.c b/drivers/pinctrl/pinctrl-imx23.c
index 75d3eff9429..3674d877ed7 100644
--- a/drivers/pinctrl/pinctrl-imx23.c
+++ b/drivers/pinctrl/pinctrl-imx23.c
@@ -292,7 +292,7 @@ static int __init imx23_pinctrl_init(void)
 {
 	return platform_driver_register(&imx23_pinctrl_driver);
 }
-arch_initcall(imx23_pinctrl_init);
+postcore_initcall(imx23_pinctrl_init);
 
 static void __exit imx23_pinctrl_exit(void)
 {
diff --git a/drivers/pinctrl/pinctrl-imx28.c b/drivers/pinctrl/pinctrl-imx28.c
index b973026811a..0f5b2122b1b 100644
--- a/drivers/pinctrl/pinctrl-imx28.c
+++ b/drivers/pinctrl/pinctrl-imx28.c
@@ -408,7 +408,7 @@ static int __init imx28_pinctrl_init(void)
 {
 	return platform_driver_register(&imx28_pinctrl_driver);
 }
-arch_initcall(imx28_pinctrl_init);
+postcore_initcall(imx28_pinctrl_init);
 
 static void __exit imx28_pinctrl_exit(void)
 {
diff --git a/drivers/pinctrl/pinctrl-imx35.c b/drivers/pinctrl/pinctrl-imx35.c
new file mode 100644
index 00000000000..82f109e26f2
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-imx35.c
@@ -0,0 +1,1595 @@
+/*
+ * imx35 pinctrl driver.
+ *
+ * This driver was mostly copied from the imx51 pinctrl driver which has:
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro, Inc.
+ *
+ * Author: Dong Aisheng <dong.aisheng@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-imx.h"
+
+enum imx35_pads {
+	MX35_PAD_CAPTURE = 0,
+	MX35_PAD_COMPARE = 1,
+	MX35_PAD_WDOG_RST = 2,
+	MX35_PAD_GPIO1_0 = 3,
+	MX35_PAD_GPIO1_1 = 4,
+	MX35_PAD_GPIO2_0 = 5,
+	MX35_PAD_GPIO3_0 = 6,
+	MX35_PAD_RESET_IN_B = 7,
+	MX35_PAD_POR_B = 8,
+	MX35_PAD_CLKO = 9,
+	MX35_PAD_BOOT_MODE0 = 10,
+	MX35_PAD_BOOT_MODE1 = 11,
+	MX35_PAD_CLK_MODE0 = 12,
+	MX35_PAD_CLK_MODE1 = 13,
+	MX35_PAD_POWER_FAIL = 14,
+	MX35_PAD_VSTBY = 15,
+	MX35_PAD_A0 = 16,
+	MX35_PAD_A1 = 17,
+	MX35_PAD_A2 = 18,
+	MX35_PAD_A3 = 19,
+	MX35_PAD_A4 = 20,
+	MX35_PAD_A5 = 21,
+	MX35_PAD_A6 = 22,
+	MX35_PAD_A7 = 23,
+	MX35_PAD_A8 = 24,
+	MX35_PAD_A9 = 25,
+	MX35_PAD_A10 = 26,
+	MX35_PAD_MA10 = 27,
+	MX35_PAD_A11 = 28,
+	MX35_PAD_A12 = 29,
+	MX35_PAD_A13 = 30,
+	MX35_PAD_A14 = 31,
+	MX35_PAD_A15 = 32,
+	MX35_PAD_A16 = 33,
+	MX35_PAD_A17 = 34,
+	MX35_PAD_A18 = 35,
+	MX35_PAD_A19 = 36,
+	MX35_PAD_A20 = 37,
+	MX35_PAD_A21 = 38,
+	MX35_PAD_A22 = 39,
+	MX35_PAD_A23 = 40,
+	MX35_PAD_A24 = 41,
+	MX35_PAD_A25 = 42,
+	MX35_PAD_SDBA1 = 43,
+	MX35_PAD_SDBA0 = 44,
+	MX35_PAD_SD0 = 45,
+	MX35_PAD_SD1 = 46,
+	MX35_PAD_SD2 = 47,
+	MX35_PAD_SD3 = 48,
+	MX35_PAD_SD4 = 49,
+	MX35_PAD_SD5 = 50,
+	MX35_PAD_SD6 = 51,
+	MX35_PAD_SD7 = 52,
+	MX35_PAD_SD8 = 53,
+	MX35_PAD_SD9 = 54,
+	MX35_PAD_SD10 = 55,
+	MX35_PAD_SD11 = 56,
+	MX35_PAD_SD12 = 57,
+	MX35_PAD_SD13 = 58,
+	MX35_PAD_SD14 = 59,
+	MX35_PAD_SD15 = 60,
+	MX35_PAD_SD16 = 61,
+	MX35_PAD_SD17 = 62,
+	MX35_PAD_SD18 = 63,
+	MX35_PAD_SD19 = 64,
+	MX35_PAD_SD20 = 65,
+	MX35_PAD_SD21 = 66,
+	MX35_PAD_SD22 = 67,
+	MX35_PAD_SD23 = 68,
+	MX35_PAD_SD24 = 69,
+	MX35_PAD_SD25 = 70,
+	MX35_PAD_SD26 = 71,
+	MX35_PAD_SD27 = 72,
+	MX35_PAD_SD28 = 73,
+	MX35_PAD_SD29 = 74,
+	MX35_PAD_SD30 = 75,
+	MX35_PAD_SD31 = 76,
+	MX35_PAD_DQM0 = 77,
+	MX35_PAD_DQM1 = 78,
+	MX35_PAD_DQM2 = 79,
+	MX35_PAD_DQM3 = 80,
+	MX35_PAD_EB0 = 81,
+	MX35_PAD_EB1 = 82,
+	MX35_PAD_OE = 83,
+	MX35_PAD_CS0 = 84,
+	MX35_PAD_CS1 = 85,
+	MX35_PAD_CS2 = 86,
+	MX35_PAD_CS3 = 87,
+	MX35_PAD_CS4 = 88,
+	MX35_PAD_CS5 = 89,
+	MX35_PAD_NF_CE0 = 90,
+	MX35_PAD_ECB = 91,
+	MX35_PAD_LBA = 92,
+	MX35_PAD_BCLK = 93,
+	MX35_PAD_RW = 94,
+	MX35_PAD_RAS = 95,
+	MX35_PAD_CAS = 96,
+	MX35_PAD_SDWE = 97,
+	MX35_PAD_SDCKE0 = 98,
+	MX35_PAD_SDCKE1 = 99,
+	MX35_PAD_SDCLK = 100,
+	MX35_PAD_SDQS0 = 101,
+	MX35_PAD_SDQS1 = 102,
+	MX35_PAD_SDQS2 = 103,
+	MX35_PAD_SDQS3 = 104,
+	MX35_PAD_NFWE_B = 105,
+	MX35_PAD_NFRE_B = 106,
+	MX35_PAD_NFALE = 107,
+	MX35_PAD_NFCLE = 108,
+	MX35_PAD_NFWP_B = 109,
+	MX35_PAD_NFRB = 110,
+	MX35_PAD_D15 = 111,
+	MX35_PAD_D14 = 112,
+	MX35_PAD_D13 = 113,
+	MX35_PAD_D12 = 114,
+	MX35_PAD_D11 = 115,
+	MX35_PAD_D10 = 116,
+	MX35_PAD_D9 = 117,
+	MX35_PAD_D8 = 118,
+	MX35_PAD_D7 = 119,
+	MX35_PAD_D6 = 120,
+	MX35_PAD_D5 = 121,
+	MX35_PAD_D4 = 122,
+	MX35_PAD_D3 = 123,
+	MX35_PAD_D2 = 124,
+	MX35_PAD_D1 = 125,
+	MX35_PAD_D0 = 126,
+	MX35_PAD_CSI_D8 = 127,
+	MX35_PAD_CSI_D9 = 128,
+	MX35_PAD_CSI_D10 = 129,
+	MX35_PAD_CSI_D11 = 130,
+	MX35_PAD_CSI_D12 = 131,
+	MX35_PAD_CSI_D13 = 132,
+	MX35_PAD_CSI_D14 = 133,
+	MX35_PAD_CSI_D15 = 134,
+	MX35_PAD_CSI_MCLK = 135,
+	MX35_PAD_CSI_VSYNC = 136,
+	MX35_PAD_CSI_HSYNC = 137,
+	MX35_PAD_CSI_PIXCLK = 138,
+	MX35_PAD_I2C1_CLK = 139,
+	MX35_PAD_I2C1_DAT = 140,
+	MX35_PAD_I2C2_CLK = 141,
+	MX35_PAD_I2C2_DAT = 142,
+	MX35_PAD_STXD4 = 143,
+	MX35_PAD_SRXD4 = 144,
+	MX35_PAD_SCK4 = 145,
+	MX35_PAD_STXFS4 = 146,
+	MX35_PAD_STXD5 = 147,
+	MX35_PAD_SRXD5 = 148,
+	MX35_PAD_SCK5 = 149,
+	MX35_PAD_STXFS5 = 150,
+	MX35_PAD_SCKR = 151,
+	MX35_PAD_FSR = 152,
+	MX35_PAD_HCKR = 153,
+	MX35_PAD_SCKT = 154,
+	MX35_PAD_FST = 155,
+	MX35_PAD_HCKT = 156,
+	MX35_PAD_TX5_RX0 = 157,
+	MX35_PAD_TX4_RX1 = 158,
+	MX35_PAD_TX3_RX2 = 159,
+	MX35_PAD_TX2_RX3 = 160,
+	MX35_PAD_TX1 = 161,
+	MX35_PAD_TX0 = 162,
+	MX35_PAD_CSPI1_MOSI = 163,
+	MX35_PAD_CSPI1_MISO = 164,
+	MX35_PAD_CSPI1_SS0 = 165,
+	MX35_PAD_CSPI1_SS1 = 166,
+	MX35_PAD_CSPI1_SCLK = 167,
+	MX35_PAD_CSPI1_SPI_RDY = 168,
+	MX35_PAD_RXD1 = 169,
+	MX35_PAD_TXD1 = 170,
+	MX35_PAD_RTS1 = 171,
+	MX35_PAD_CTS1 = 172,
+	MX35_PAD_RXD2 = 173,
+	MX35_PAD_TXD2 = 174,
+	MX35_PAD_RTS2 = 175,
+	MX35_PAD_CTS2 = 176,
+	MX35_PAD_RTCK = 177,
+	MX35_PAD_TCK = 178,
+	MX35_PAD_TMS = 179,
+	MX35_PAD_TDI = 180,
+	MX35_PAD_TDO = 181,
+	MX35_PAD_TRSTB = 182,
+	MX35_PAD_DE_B = 183,
+	MX35_PAD_SJC_MOD = 184,
+	MX35_PAD_USBOTG_PWR = 185,
+	MX35_PAD_USBOTG_OC = 186,
+	MX35_PAD_LD0 = 187,
+	MX35_PAD_LD1 = 188,
+	MX35_PAD_LD2 = 189,
+	MX35_PAD_LD3 = 190,
+	MX35_PAD_LD4 = 191,
+	MX35_PAD_LD5 = 192,
+	MX35_PAD_LD6 = 193,
+	MX35_PAD_LD7 = 194,
+	MX35_PAD_LD8 = 195,
+	MX35_PAD_LD9 = 196,
+	MX35_PAD_LD10 = 197,
+	MX35_PAD_LD11 = 198,
+	MX35_PAD_LD12 = 199,
+	MX35_PAD_LD13 = 200,
+	MX35_PAD_LD14 = 201,
+	MX35_PAD_LD15 = 202,
+	MX35_PAD_LD16 = 203,
+	MX35_PAD_LD17 = 204,
+	MX35_PAD_LD18 = 205,
+	MX35_PAD_LD19 = 206,
+	MX35_PAD_LD20 = 207,
+	MX35_PAD_LD21 = 208,
+	MX35_PAD_LD22 = 209,
+	MX35_PAD_LD23 = 210,
+	MX35_PAD_D3_HSYNC = 211,
+	MX35_PAD_D3_FPSHIFT = 212,
+	MX35_PAD_D3_DRDY = 213,
+	MX35_PAD_CONTRAST = 214,
+	MX35_PAD_D3_VSYNC = 215,
+	MX35_PAD_D3_REV = 216,
+	MX35_PAD_D3_CLS = 217,
+	MX35_PAD_D3_SPL = 218,
+	MX35_PAD_SD1_CMD = 219,
+	MX35_PAD_SD1_CLK = 220,
+	MX35_PAD_SD1_DATA0 = 221,
+	MX35_PAD_SD1_DATA1 = 222,
+	MX35_PAD_SD1_DATA2 = 223,
+	MX35_PAD_SD1_DATA3 = 224,
+	MX35_PAD_SD2_CMD = 225,
+	MX35_PAD_SD2_CLK = 226,
+	MX35_PAD_SD2_DATA0 = 227,
+	MX35_PAD_SD2_DATA1 = 228,
+	MX35_PAD_SD2_DATA2 = 229,
+	MX35_PAD_SD2_DATA3 = 230,
+	MX35_PAD_ATA_CS0 = 231,
+	MX35_PAD_ATA_CS1 = 232,
+	MX35_PAD_ATA_DIOR = 233,
+	MX35_PAD_ATA_DIOW = 234,
+	MX35_PAD_ATA_DMACK = 235,
+	MX35_PAD_ATA_RESET_B = 236,
+	MX35_PAD_ATA_IORDY = 237,
+	MX35_PAD_ATA_DATA0 = 238,
+	MX35_PAD_ATA_DATA1 = 239,
+	MX35_PAD_ATA_DATA2 = 240,
+	MX35_PAD_ATA_DATA3 = 241,
+	MX35_PAD_ATA_DATA4 = 242,
+	MX35_PAD_ATA_DATA5 = 243,
+	MX35_PAD_ATA_DATA6 = 244,
+	MX35_PAD_ATA_DATA7 = 245,
+	MX35_PAD_ATA_DATA8 = 246,
+	MX35_PAD_ATA_DATA9 = 247,
+	MX35_PAD_ATA_DATA10 = 248,
+	MX35_PAD_ATA_DATA11 = 249,
+	MX35_PAD_ATA_DATA12 = 250,
+	MX35_PAD_ATA_DATA13 = 251,
+	MX35_PAD_ATA_DATA14 = 252,
+	MX35_PAD_ATA_DATA15 = 253,
+	MX35_PAD_ATA_INTRQ = 254,
+	MX35_PAD_ATA_BUFF_EN = 255,
+	MX35_PAD_ATA_DMARQ = 256,
+	MX35_PAD_ATA_DA0 = 257,
+	MX35_PAD_ATA_DA1 = 258,
+	MX35_PAD_ATA_DA2 = 259,
+	MX35_PAD_MLB_CLK = 260,
+	MX35_PAD_MLB_DAT = 261,
+	MX35_PAD_MLB_SIG = 262,
+	MX35_PAD_FEC_TX_CLK = 263,
+	MX35_PAD_FEC_RX_CLK = 264,
+	MX35_PAD_FEC_RX_DV = 265,
+	MX35_PAD_FEC_COL = 266,
+	MX35_PAD_FEC_RDATA0 = 267,
+	MX35_PAD_FEC_TDATA0 = 268,
+	MX35_PAD_FEC_TX_EN = 269,
+	MX35_PAD_FEC_MDC = 270,
+	MX35_PAD_FEC_MDIO = 271,
+	MX35_PAD_FEC_TX_ERR = 272,
+	MX35_PAD_FEC_RX_ERR = 273,
+	MX35_PAD_FEC_CRS = 274,
+	MX35_PAD_FEC_RDATA1 = 275,
+	MX35_PAD_FEC_TDATA1 = 276,
+	MX35_PAD_FEC_RDATA2 = 277,
+	MX35_PAD_FEC_TDATA2 = 278,
+	MX35_PAD_FEC_RDATA3 = 279,
+	MX35_PAD_FEC_TDATA3 = 280,
+	MX35_PAD_EXT_ARMCLK = 281,
+	MX35_PAD_TEST_MODE = 282,
+};
+
+/* imx35 register maps */
+static struct imx_pin_reg imx35_pin_regs[] = {
+	[0] = IMX_PIN_REG(MX35_PAD_CAPTURE, 0x328, 0x004, 0, 0x0, 0), /* MX35_PAD_CAPTURE__GPT_CAPIN1 */
+	[1] = IMX_PIN_REG(MX35_PAD_CAPTURE, 0x328, 0x004, 1, 0x0, 0), /* MX35_PAD_CAPTURE__GPT_CMPOUT2 */
+	[2] = IMX_PIN_REG(MX35_PAD_CAPTURE, 0x328, 0x004, 2, 0x7f4, 0), /* MX35_PAD_CAPTURE__CSPI2_SS1 */
+	[3] = IMX_PIN_REG(MX35_PAD_CAPTURE, 0x328, 0x004, 3, 0x0, 0), /* MX35_PAD_CAPTURE__EPIT1_EPITO */
+	[4] = IMX_PIN_REG(MX35_PAD_CAPTURE, 0x328, 0x004, 4, 0x7d0, 0), /* MX35_PAD_CAPTURE__CCM_CLK32K */
+	[5] = IMX_PIN_REG(MX35_PAD_CAPTURE, 0x328, 0x004, 5, 0x850, 0), /* MX35_PAD_CAPTURE__GPIO1_4 */
+	[6] = IMX_PIN_REG(MX35_PAD_COMPARE, 0x32c, 0x008, 0, 0x0, 0), /* MX35_PAD_COMPARE__GPT_CMPOUT1 */
+	[7] = IMX_PIN_REG(MX35_PAD_COMPARE, 0x32c, 0x008, 1, 0x0, 0), /* MX35_PAD_COMPARE__GPT_CAPIN2 */
+	[8] = IMX_PIN_REG(MX35_PAD_COMPARE, 0x32c, 0x008, 2, 0x0, 0), /* MX35_PAD_COMPARE__GPT_CMPOUT3 */
+	[9] = IMX_PIN_REG(MX35_PAD_COMPARE, 0x32c, 0x008, 3, 0x0, 0), /* MX35_PAD_COMPARE__EPIT2_EPITO */
+	[10] = IMX_PIN_REG(MX35_PAD_COMPARE, 0x32c, 0x008, 5, 0x854, 0), /* MX35_PAD_COMPARE__GPIO1_5 */
+	[11] = IMX_PIN_REG(MX35_PAD_COMPARE, 0x32c, 0x008, 7, 0x0, 0), /* MX35_PAD_COMPARE__SDMA_EXTDMA_2 */
+	[12] = IMX_PIN_REG(MX35_PAD_WDOG_RST, 0x330, 0x00c, 0, 0x0, 0), /* MX35_PAD_WDOG_RST__WDOG_WDOG_B */
+	[13] = IMX_PIN_REG(MX35_PAD_WDOG_RST, 0x330, 0x00c, 3, 0x0, 0), /* MX35_PAD_WDOG_RST__IPU_FLASH_STROBE */
+	[14] = IMX_PIN_REG(MX35_PAD_WDOG_RST, 0x330, 0x00c, 5, 0x858, 0), /* MX35_PAD_WDOG_RST__GPIO1_6 */
+	[15] = IMX_PIN_REG(MX35_PAD_GPIO1_0, 0x334, 0x010, 0, 0x82c, 0), /* MX35_PAD_GPIO1_0__GPIO1_0 */
+	[16] = IMX_PIN_REG(MX35_PAD_GPIO1_0, 0x334, 0x010, 1, 0x7d4, 0), /* MX35_PAD_GPIO1_0__CCM_PMIC_RDY */
+	[17] = IMX_PIN_REG(MX35_PAD_GPIO1_0, 0x334, 0x010, 2, 0x990, 0), /* MX35_PAD_GPIO1_0__OWIRE_LINE */
+	[18] = IMX_PIN_REG(MX35_PAD_GPIO1_0, 0x334, 0x010, 7, 0x0, 0), /* MX35_PAD_GPIO1_0__SDMA_EXTDMA_0 */
+	[19] = IMX_PIN_REG(MX35_PAD_GPIO1_1, 0x338, 0x014, 0, 0x838, 0), /* MX35_PAD_GPIO1_1__GPIO1_1 */
+	[20] = IMX_PIN_REG(MX35_PAD_GPIO1_1, 0x338, 0x014, 2, 0x0, 0), /* MX35_PAD_GPIO1_1__PWM_PWMO */
+	[21] = IMX_PIN_REG(MX35_PAD_GPIO1_1, 0x338, 0x014, 3, 0x7d8, 0), /* MX35_PAD_GPIO1_1__CSPI1_SS2 */
+	[22] = IMX_PIN_REG(MX35_PAD_GPIO1_1, 0x338, 0x014, 6, 0x0, 0), /* MX35_PAD_GPIO1_1__SCC_TAMPER_DETECT */
+	[23] = IMX_PIN_REG(MX35_PAD_GPIO1_1, 0x338, 0x014, 7, 0x0, 0), /* MX35_PAD_GPIO1_1__SDMA_EXTDMA_1 */
+	[24] = IMX_PIN_REG(MX35_PAD_GPIO2_0, 0x33c, 0x018, 0, 0x868, 0), /* MX35_PAD_GPIO2_0__GPIO2_0 */
+	[25] = IMX_PIN_REG(MX35_PAD_GPIO2_0, 0x33c, 0x018, 1, 0x0, 0), /* MX35_PAD_GPIO2_0__USB_TOP_USBOTG_CLK */
+	[26] = IMX_PIN_REG(MX35_PAD_GPIO3_0, 0x340, 0x01c, 0, 0x8e8, 0), /* MX35_PAD_GPIO3_0__GPIO3_0 */
+	[27] = IMX_PIN_REG(MX35_PAD_GPIO3_0, 0x340, 0x01c, 1, 0x0, 0), /* MX35_PAD_GPIO3_0__USB_TOP_USBH2_CLK */
+	[28] = IMX_PIN_REG(MX35_PAD_RESET_IN_B, 0x344, 0x0, 0, 0x0, 0), /* MX35_PAD_RESET_IN_B__CCM_RESET_IN_B */
+	[29] = IMX_PIN_REG(MX35_PAD_POR_B, 0x348, 0x0, 0, 0x0, 0), /* MX35_PAD_POR_B__CCM_POR_B */
+	[30] = IMX_PIN_REG(MX35_PAD_CLKO, 0x34c, 0x020, 0, 0x0, 0), /* MX35_PAD_CLKO__CCM_CLKO */
+	[31] = IMX_PIN_REG(MX35_PAD_CLKO, 0x34c, 0x020, 5, 0x860, 0), /* MX35_PAD_CLKO__GPIO1_8 */
+	[32] = IMX_PIN_REG(MX35_PAD_BOOT_MODE0, 0x350, 0x0, 0, 0x0, 0), /* MX35_PAD_BOOT_MODE0__CCM_BOOT_MODE_0 */
+	[33] = IMX_PIN_REG(MX35_PAD_BOOT_MODE1, 0x354, 0x0, 0, 0x0, 0), /* MX35_PAD_BOOT_MODE1__CCM_BOOT_MODE_1 */
+	[34] = IMX_PIN_REG(MX35_PAD_CLK_MODE0, 0x358, 0x0, 0, 0x0, 0), /* MX35_PAD_CLK_MODE0__CCM_CLK_MODE_0 */
+	[35] = IMX_PIN_REG(MX35_PAD_CLK_MODE1, 0x35c, 0x0, 0, 0x0, 0), /* MX35_PAD_CLK_MODE1__CCM_CLK_MODE_1 */
+	[36] = IMX_PIN_REG(MX35_PAD_POWER_FAIL, 0x360, 0x0, 0, 0x0, 0), /* MX35_PAD_POWER_FAIL__CCM_DSM_WAKEUP_INT_26 */
+	[37] = IMX_PIN_REG(MX35_PAD_VSTBY, 0x364, 0x024, 0, 0x0, 0), /* MX35_PAD_VSTBY__CCM_VSTBY */
+	[38] = IMX_PIN_REG(MX35_PAD_VSTBY, 0x364, 0x024, 5, 0x85c, 0), /* MX35_PAD_VSTBY__GPIO1_7 */
+	[39] = IMX_PIN_REG(MX35_PAD_A0, 0x368, 0x028, 0, 0x0, 0), /* MX35_PAD_A0__EMI_EIM_DA_L_0 */
+	[40] = IMX_PIN_REG(MX35_PAD_A1, 0x36c, 0x02c, 0, 0x0, 0), /* MX35_PAD_A1__EMI_EIM_DA_L_1 */
+	[41] = IMX_PIN_REG(MX35_PAD_A2, 0x370, 0x030, 0, 0x0, 0), /* MX35_PAD_A2__EMI_EIM_DA_L_2 */
+	[42] = IMX_PIN_REG(MX35_PAD_A3, 0x374, 0x034, 0, 0x0, 0), /* MX35_PAD_A3__EMI_EIM_DA_L_3 */
+	[43] = IMX_PIN_REG(MX35_PAD_A4, 0x378, 0x038, 0, 0x0, 0), /* MX35_PAD_A4__EMI_EIM_DA_L_4 */
+	[44] = IMX_PIN_REG(MX35_PAD_A5, 0x37c, 0x03c, 0, 0x0, 0), /* MX35_PAD_A5__EMI_EIM_DA_L_5 */
+	[45] = IMX_PIN_REG(MX35_PAD_A6, 0x380, 0x040, 0, 0x0, 0), /* MX35_PAD_A6__EMI_EIM_DA_L_6 */
+	[46] = IMX_PIN_REG(MX35_PAD_A7, 0x384, 0x044, 0, 0x0, 0), /* MX35_PAD_A7__EMI_EIM_DA_L_7 */
+	[47] = IMX_PIN_REG(MX35_PAD_A8, 0x388, 0x048, 0, 0x0, 0), /* MX35_PAD_A8__EMI_EIM_DA_H_8 */
+	[48] = IMX_PIN_REG(MX35_PAD_A9, 0x38c, 0x04c, 0, 0x0, 0), /* MX35_PAD_A9__EMI_EIM_DA_H_9 */
+	[49] = IMX_PIN_REG(MX35_PAD_A10, 0x390, 0x050, 0, 0x0, 0), /* MX35_PAD_A10__EMI_EIM_DA_H_10 */
+	[50] = IMX_PIN_REG(MX35_PAD_MA10, 0x394, 0x054, 0, 0x0, 0), /* MX35_PAD_MA10__EMI_MA10 */
+	[51] = IMX_PIN_REG(MX35_PAD_A11, 0x398, 0x058, 0, 0x0, 0), /* MX35_PAD_A11__EMI_EIM_DA_H_11 */
+	[52] = IMX_PIN_REG(MX35_PAD_A12, 0x39c, 0x05c, 0, 0x0, 0), /* MX35_PAD_A12__EMI_EIM_DA_H_12 */
+	[53] = IMX_PIN_REG(MX35_PAD_A13, 0x3a0, 0x060, 0, 0x0, 0), /* MX35_PAD_A13__EMI_EIM_DA_H_13 */
+	[54] = IMX_PIN_REG(MX35_PAD_A14, 0x3a4, 0x064, 0, 0x0, 0), /* MX35_PAD_A14__EMI_EIM_DA_H2_14 */
+	[55] = IMX_PIN_REG(MX35_PAD_A15, 0x3a8, 0x068, 0, 0x0, 0), /* MX35_PAD_A15__EMI_EIM_DA_H2_15 */
+	[56] = IMX_PIN_REG(MX35_PAD_A16, 0x3ac, 0x06c, 0, 0x0, 0), /* MX35_PAD_A16__EMI_EIM_A_16 */
+	[57] = IMX_PIN_REG(MX35_PAD_A17, 0x3b0, 0x070, 0, 0x0, 0), /* MX35_PAD_A17__EMI_EIM_A_17 */
+	[58] = IMX_PIN_REG(MX35_PAD_A18, 0x3b4, 0x074, 0, 0x0, 0), /* MX35_PAD_A18__EMI_EIM_A_18 */
+	[59] = IMX_PIN_REG(MX35_PAD_A19, 0x3b8, 0x078, 0, 0x0, 0), /* MX35_PAD_A19__EMI_EIM_A_19 */
+	[60] = IMX_PIN_REG(MX35_PAD_A20, 0x3bc, 0x07c, 0, 0x0, 0), /* MX35_PAD_A20__EMI_EIM_A_20 */
+	[61] = IMX_PIN_REG(MX35_PAD_A21, 0x3c0, 0x080, 0, 0x0, 0), /* MX35_PAD_A21__EMI_EIM_A_21 */
+	[62] = IMX_PIN_REG(MX35_PAD_A22, 0x3c4, 0x084, 0, 0x0, 0), /* MX35_PAD_A22__EMI_EIM_A_22 */
+	[63] = IMX_PIN_REG(MX35_PAD_A23, 0x3c8, 0x088, 0, 0x0, 0), /* MX35_PAD_A23__EMI_EIM_A_23 */
+	[64] = IMX_PIN_REG(MX35_PAD_A24, 0x3cc, 0x08c, 0, 0x0, 0), /* MX35_PAD_A24__EMI_EIM_A_24 */
+	[65] = IMX_PIN_REG(MX35_PAD_A25, 0x3d0, 0x090, 0, 0x0, 0), /* MX35_PAD_A25__EMI_EIM_A_25 */
+	[66] = IMX_PIN_REG(MX35_PAD_SDBA1, 0x3d4, 0x0, 0, 0x0, 0), /* MX35_PAD_SDBA1__EMI_EIM_SDBA1 */
+	[67] = IMX_PIN_REG(MX35_PAD_SDBA0, 0x3d8, 0x0, 0, 0x0, 0), /* MX35_PAD_SDBA0__EMI_EIM_SDBA0 */
+	[68] = IMX_PIN_REG(MX35_PAD_SD0, 0x3dc, 0x0, 0, 0x0, 0), /* MX35_PAD_SD0__EMI_DRAM_D_0 */
+	[69] = IMX_PIN_REG(MX35_PAD_SD1, 0x3e0, 0x0, 0, 0x0, 0), /* MX35_PAD_SD1__EMI_DRAM_D_1 */
+	[70] = IMX_PIN_REG(MX35_PAD_SD2, 0x3e4, 0x0, 0, 0x0, 0), /* MX35_PAD_SD2__EMI_DRAM_D_2 */
+	[71] = IMX_PIN_REG(MX35_PAD_SD3, 0x3e8, 0x0, 0, 0x0, 0), /* MX35_PAD_SD3__EMI_DRAM_D_3 */
+	[72] = IMX_PIN_REG(MX35_PAD_SD4, 0x3ec, 0x0, 0, 0x0, 0), /* MX35_PAD_SD4__EMI_DRAM_D_4 */
+	[73] = IMX_PIN_REG(MX35_PAD_SD5, 0x3f0, 0x0, 0, 0x0, 0), /* MX35_PAD_SD5__EMI_DRAM_D_5 */
+	[74] = IMX_PIN_REG(MX35_PAD_SD6, 0x3f4, 0x0, 0, 0x0, 0), /* MX35_PAD_SD6__EMI_DRAM_D_6 */
+	[75] = IMX_PIN_REG(MX35_PAD_SD7, 0x3f8, 0x0, 0, 0x0, 0), /* MX35_PAD_SD7__EMI_DRAM_D_7 */
+	[76] = IMX_PIN_REG(MX35_PAD_SD8, 0x3fc, 0x0, 0, 0x0, 0), /* MX35_PAD_SD8__EMI_DRAM_D_8 */
+	[77] = IMX_PIN_REG(MX35_PAD_SD9, 0x400, 0x0, 0, 0x0, 0), /* MX35_PAD_SD9__EMI_DRAM_D_9 */
+	[78] = IMX_PIN_REG(MX35_PAD_SD10, 0x404, 0x0, 0, 0x0, 0), /* MX35_PAD_SD10__EMI_DRAM_D_10 */
+	[79] = IMX_PIN_REG(MX35_PAD_SD11, 0x408, 0x0, 0, 0x0, 0), /* MX35_PAD_SD11__EMI_DRAM_D_11 */
+	[80] = IMX_PIN_REG(MX35_PAD_SD12, 0x40c, 0x0, 0, 0x0, 0), /* MX35_PAD_SD12__EMI_DRAM_D_12 */
+	[81] = IMX_PIN_REG(MX35_PAD_SD13, 0x410, 0x0, 0, 0x0, 0), /* MX35_PAD_SD13__EMI_DRAM_D_13 */
+	[82] = IMX_PIN_REG(MX35_PAD_SD14, 0x414, 0x0, 0, 0x0, 0), /* MX35_PAD_SD14__EMI_DRAM_D_14 */
+	[83] = IMX_PIN_REG(MX35_PAD_SD15, 0x418, 0x0, 0, 0x0, 0), /* MX35_PAD_SD15__EMI_DRAM_D_15 */
+	[84] = IMX_PIN_REG(MX35_PAD_SD16, 0x41c, 0x0, 0, 0x0, 0), /* MX35_PAD_SD16__EMI_DRAM_D_16 */
+	[85] = IMX_PIN_REG(MX35_PAD_SD17, 0x420, 0x0, 0, 0x0, 0), /* MX35_PAD_SD17__EMI_DRAM_D_17 */
+	[86] = IMX_PIN_REG(MX35_PAD_SD18, 0x424, 0x0, 0, 0x0, 0), /* MX35_PAD_SD18__EMI_DRAM_D_18 */
+	[87] = IMX_PIN_REG(MX35_PAD_SD19, 0x428, 0x0, 0, 0x0, 0), /* MX35_PAD_SD19__EMI_DRAM_D_19 */
+	[88] = IMX_PIN_REG(MX35_PAD_SD20, 0x42c, 0x0, 0, 0x0, 0), /* MX35_PAD_SD20__EMI_DRAM_D_20 */
+	[89] = IMX_PIN_REG(MX35_PAD_SD21, 0x430, 0x0, 0, 0x0, 0), /* MX35_PAD_SD21__EMI_DRAM_D_21 */
+	[90] = IMX_PIN_REG(MX35_PAD_SD22, 0x434, 0x0, 0, 0x0, 0), /* MX35_PAD_SD22__EMI_DRAM_D_22 */
+	[91] = IMX_PIN_REG(MX35_PAD_SD23, 0x438, 0x0, 0, 0x0, 0), /* MX35_PAD_SD23__EMI_DRAM_D_23 */
+	[92] = IMX_PIN_REG(MX35_PAD_SD24, 0x43c, 0x0, 0, 0x0, 0), /* MX35_PAD_SD24__EMI_DRAM_D_24 */
+	[93] = IMX_PIN_REG(MX35_PAD_SD25, 0x440, 0x0, 0, 0x0, 0), /* MX35_PAD_SD25__EMI_DRAM_D_25 */
+	[94] = IMX_PIN_REG(MX35_PAD_SD26, 0x444, 0x0, 0, 0x0, 0), /* MX35_PAD_SD26__EMI_DRAM_D_26 */
+	[95] = IMX_PIN_REG(MX35_PAD_SD27, 0x448, 0x0, 0, 0x0, 0), /* MX35_PAD_SD27__EMI_DRAM_D_27 */
+	[96] = IMX_PIN_REG(MX35_PAD_SD28, 0x44c, 0x0, 0, 0x0, 0), /* MX35_PAD_SD28__EMI_DRAM_D_28 */
+	[97] = IMX_PIN_REG(MX35_PAD_SD29, 0x450, 0x0, 0, 0x0, 0), /* MX35_PAD_SD29__EMI_DRAM_D_29 */
+	[98] = IMX_PIN_REG(MX35_PAD_SD30, 0x454, 0x0, 0, 0x0, 0), /* MX35_PAD_SD30__EMI_DRAM_D_30 */
+	[99] = IMX_PIN_REG(MX35_PAD_SD31, 0x458, 0x0, 0, 0x0, 0), /* MX35_PAD_SD31__EMI_DRAM_D_31 */
+	[100] = IMX_PIN_REG(MX35_PAD_DQM0, 0x45c, 0x0, 0, 0x0, 0), /* MX35_PAD_DQM0__EMI_DRAM_DQM_0 */
+	[101] = IMX_PIN_REG(MX35_PAD_DQM1, 0x460, 0x0, 0, 0x0, 0), /* MX35_PAD_DQM1__EMI_DRAM_DQM_1 */
+	[102] = IMX_PIN_REG(MX35_PAD_DQM2, 0x464, 0x0, 0, 0x0, 0), /* MX35_PAD_DQM2__EMI_DRAM_DQM_2 */
+	[103] = IMX_PIN_REG(MX35_PAD_DQM3, 0x468, 0x0, 0, 0x0, 0), /* MX35_PAD_DQM3__EMI_DRAM_DQM_3 */
+	[104] = IMX_PIN_REG(MX35_PAD_EB0, 0x46c, 0x094, 0, 0x0, 0), /* MX35_PAD_EB0__EMI_EIM_EB0_B */
+	[105] = IMX_PIN_REG(MX35_PAD_EB1, 0x470, 0x098, 0, 0x0, 0), /* MX35_PAD_EB1__EMI_EIM_EB1_B */
+	[106] = IMX_PIN_REG(MX35_PAD_OE, 0x474, 0x09c, 0, 0x0, 0), /* MX35_PAD_OE__EMI_EIM_OE */
+	[107] = IMX_PIN_REG(MX35_PAD_CS0, 0x478, 0x0a0, 0, 0x0, 0), /* MX35_PAD_CS0__EMI_EIM_CS0 */
+	[108] = IMX_PIN_REG(MX35_PAD_CS1, 0x47c, 0x0a4, 0, 0x0, 0), /* MX35_PAD_CS1__EMI_EIM_CS1 */
+	[109] = IMX_PIN_REG(MX35_PAD_CS1, 0x47c, 0x0a4, 3, 0x0, 0), /* MX35_PAD_CS1__EMI_NANDF_CE3 */
+	[110] = IMX_PIN_REG(MX35_PAD_CS2, 0x480, 0x0a8, 0, 0x0, 0), /* MX35_PAD_CS2__EMI_EIM_CS2 */
+	[111] = IMX_PIN_REG(MX35_PAD_CS3, 0x484, 0x0ac, 0, 0x0, 0), /* MX35_PAD_CS3__EMI_EIM_CS3 */
+	[112] = IMX_PIN_REG(MX35_PAD_CS4, 0x488, 0x0b0, 0, 0x0, 0), /* MX35_PAD_CS4__EMI_EIM_CS4 */
+	[113] = IMX_PIN_REG(MX35_PAD_CS4, 0x488, 0x0b0, 1, 0x800, 0), /* MX35_PAD_CS4__EMI_DTACK_B */
+	[114] = IMX_PIN_REG(MX35_PAD_CS4, 0x488, 0x0b0, 3, 0x0, 0), /* MX35_PAD_CS4__EMI_NANDF_CE1 */
+	[115] = IMX_PIN_REG(MX35_PAD_CS4, 0x488, 0x0b0, 5, 0x83c, 0), /* MX35_PAD_CS4__GPIO1_20 */
+	[116] = IMX_PIN_REG(MX35_PAD_CS5, 0x48c, 0x0b4, 0, 0x0, 0), /* MX35_PAD_CS5__EMI_EIM_CS5 */
+	[117] = IMX_PIN_REG(MX35_PAD_CS5, 0x48c, 0x0b4, 1, 0x7f8, 0), /* MX35_PAD_CS5__CSPI2_SS2 */
+	[118] = IMX_PIN_REG(MX35_PAD_CS5, 0x48c, 0x0b4, 2, 0x7d8, 1), /* MX35_PAD_CS5__CSPI1_SS2 */
+	[119] = IMX_PIN_REG(MX35_PAD_CS5, 0x48c, 0x0b4, 3, 0x0, 0), /* MX35_PAD_CS5__EMI_NANDF_CE2 */
+	[120] = IMX_PIN_REG(MX35_PAD_CS5, 0x48c, 0x0b4, 5, 0x840, 0), /* MX35_PAD_CS5__GPIO1_21 */
+	[121] = IMX_PIN_REG(MX35_PAD_NF_CE0, 0x490, 0x0b8, 0, 0x0, 0), /* MX35_PAD_NF_CE0__EMI_NANDF_CE0 */
+	[122] = IMX_PIN_REG(MX35_PAD_NF_CE0, 0x490, 0x0b8, 5, 0x844, 0), /* MX35_PAD_NF_CE0__GPIO1_22 */
+	[123] = IMX_PIN_REG(MX35_PAD_ECB, 0x494, 0x0, 0, 0x0, 0), /* MX35_PAD_ECB__EMI_EIM_ECB */
+	[124] = IMX_PIN_REG(MX35_PAD_LBA, 0x498, 0x0bc, 0, 0x0, 0), /* MX35_PAD_LBA__EMI_EIM_LBA */
+	[125] = IMX_PIN_REG(MX35_PAD_BCLK, 0x49c, 0x0c0, 0, 0x0, 0), /* MX35_PAD_BCLK__EMI_EIM_BCLK */
+	[126] = IMX_PIN_REG(MX35_PAD_RW, 0x4a0, 0x0c4, 0, 0x0, 0), /* MX35_PAD_RW__EMI_EIM_RW */
+	[127] = IMX_PIN_REG(MX35_PAD_RAS, 0x4a4, 0x0, 0, 0x0, 0), /* MX35_PAD_RAS__EMI_DRAM_RAS */
+	[128] = IMX_PIN_REG(MX35_PAD_CAS, 0x4a8, 0x0, 0, 0x0, 0), /* MX35_PAD_CAS__EMI_DRAM_CAS */
+	[129] = IMX_PIN_REG(MX35_PAD_SDWE, 0x4ac, 0x0, 0, 0x0, 0), /* MX35_PAD_SDWE__EMI_DRAM_SDWE */
+	[130] = IMX_PIN_REG(MX35_PAD_SDCKE0, 0x4b0, 0x0, 0, 0x0, 0), /* MX35_PAD_SDCKE0__EMI_DRAM_SDCKE_0 */
+	[131] = IMX_PIN_REG(MX35_PAD_SDCKE1, 0x4b4, 0x0, 0, 0x0, 0), /* MX35_PAD_SDCKE1__EMI_DRAM_SDCKE_1 */
+	[132] = IMX_PIN_REG(MX35_PAD_SDCLK, 0x4b8, 0x0, 0, 0x0, 0), /* MX35_PAD_SDCLK__EMI_DRAM_SDCLK */
+	[133] = IMX_PIN_REG(MX35_PAD_SDQS0, 0x4bc, 0x0, 0, 0x0, 0), /* MX35_PAD_SDQS0__EMI_DRAM_SDQS_0 */
+	[134] = IMX_PIN_REG(MX35_PAD_SDQS1, 0x4c0, 0x0, 0, 0x0, 0), /* MX35_PAD_SDQS1__EMI_DRAM_SDQS_1 */
+	[135] = IMX_PIN_REG(MX35_PAD_SDQS2, 0x4c4, 0x0, 0, 0x0, 0), /* MX35_PAD_SDQS2__EMI_DRAM_SDQS_2 */
+	[136] = IMX_PIN_REG(MX35_PAD_SDQS3, 0x4c8, 0x0, 0, 0x0, 0), /* MX35_PAD_SDQS3__EMI_DRAM_SDQS_3 */
+	[137] = IMX_PIN_REG(MX35_PAD_NFWE_B, 0x4cc, 0x0c8, 0, 0x0, 0), /* MX35_PAD_NFWE_B__EMI_NANDF_WE_B */
+	[138] = IMX_PIN_REG(MX35_PAD_NFWE_B, 0x4cc, 0x0c8, 1, 0x9d8, 0), /* MX35_PAD_NFWE_B__USB_TOP_USBH2_DATA_3 */
+	[139] = IMX_PIN_REG(MX35_PAD_NFWE_B, 0x4cc, 0x0c8, 2, 0x924, 0), /* MX35_PAD_NFWE_B__IPU_DISPB_D0_VSYNC */
+	[140] = IMX_PIN_REG(MX35_PAD_NFWE_B, 0x4cc, 0x0c8, 5, 0x88c, 0), /* MX35_PAD_NFWE_B__GPIO2_18 */
+	[141] = IMX_PIN_REG(MX35_PAD_NFWE_B, 0x4cc, 0x0c8, 7, 0x0, 0), /* MX35_PAD_NFWE_B__ARM11P_TOP_TRACE_0 */
+	[142] = IMX_PIN_REG(MX35_PAD_NFRE_B, 0x4d0, 0x0cc, 0, 0x0, 0), /* MX35_PAD_NFRE_B__EMI_NANDF_RE_B */
+	[143] = IMX_PIN_REG(MX35_PAD_NFRE_B, 0x4d0, 0x0cc, 1, 0x9ec, 0), /* MX35_PAD_NFRE_B__USB_TOP_USBH2_DIR */
+	[144] = IMX_PIN_REG(MX35_PAD_NFRE_B, 0x4d0, 0x0cc, 2, 0x0, 0), /* MX35_PAD_NFRE_B__IPU_DISPB_BCLK */
+	[145] = IMX_PIN_REG(MX35_PAD_NFRE_B, 0x4d0, 0x0cc, 5, 0x890, 0), /* MX35_PAD_NFRE_B__GPIO2_19 */
+	[146] = IMX_PIN_REG(MX35_PAD_NFRE_B, 0x4d0, 0x0cc, 7, 0x0, 0), /* MX35_PAD_NFRE_B__ARM11P_TOP_TRACE_1 */
+	[147] = IMX_PIN_REG(MX35_PAD_NFALE, 0x4d4, 0x0d0, 0, 0x0, 0), /* MX35_PAD_NFALE__EMI_NANDF_ALE */
+	[148] = IMX_PIN_REG(MX35_PAD_NFALE, 0x4d4, 0x0d0, 1, 0x0, 0), /* MX35_PAD_NFALE__USB_TOP_USBH2_STP */
+	[149] = IMX_PIN_REG(MX35_PAD_NFALE, 0x4d4, 0x0d0, 2, 0x0, 0), /* MX35_PAD_NFALE__IPU_DISPB_CS0 */
+	[150] = IMX_PIN_REG(MX35_PAD_NFALE, 0x4d4, 0x0d0, 5, 0x898, 0), /* MX35_PAD_NFALE__GPIO2_20 */
+	[151] = IMX_PIN_REG(MX35_PAD_NFALE, 0x4d4, 0x0d0, 7, 0x0, 0), /* MX35_PAD_NFALE__ARM11P_TOP_TRACE_2 */
+	[152] = IMX_PIN_REG(MX35_PAD_NFCLE, 0x4d8, 0x0d4, 0, 0x0, 0), /* MX35_PAD_NFCLE__EMI_NANDF_CLE */
+	[153] = IMX_PIN_REG(MX35_PAD_NFCLE, 0x4d8, 0x0d4, 1, 0x9f0, 0), /* MX35_PAD_NFCLE__USB_TOP_USBH2_NXT */
+	[154] = IMX_PIN_REG(MX35_PAD_NFCLE, 0x4d8, 0x0d4, 2, 0x0, 0), /* MX35_PAD_NFCLE__IPU_DISPB_PAR_RS */
+	[155] = IMX_PIN_REG(MX35_PAD_NFCLE, 0x4d8, 0x0d4, 5, 0x89c, 0), /* MX35_PAD_NFCLE__GPIO2_21 */
+	[156] = IMX_PIN_REG(MX35_PAD_NFCLE, 0x4d8, 0x0d4, 7, 0x0, 0), /* MX35_PAD_NFCLE__ARM11P_TOP_TRACE_3 */
+	[157] = IMX_PIN_REG(MX35_PAD_NFWP_B, 0x4dc, 0x0d8, 0, 0x0, 0), /* MX35_PAD_NFWP_B__EMI_NANDF_WP_B */
+	[158] = IMX_PIN_REG(MX35_PAD_NFWP_B, 0x4dc, 0x0d8, 1, 0x9e8, 0), /* MX35_PAD_NFWP_B__USB_TOP_USBH2_DATA_7 */
+	[159] = IMX_PIN_REG(MX35_PAD_NFWP_B, 0x4dc, 0x0d8, 2, 0x0, 0), /* MX35_PAD_NFWP_B__IPU_DISPB_WR */
+	[160] = IMX_PIN_REG(MX35_PAD_NFWP_B, 0x4dc, 0x0d8, 5, 0x8a0, 0), /* MX35_PAD_NFWP_B__GPIO2_22 */
+	[161] = IMX_PIN_REG(MX35_PAD_NFWP_B, 0x4dc, 0x0d8, 7, 0x0, 0), /* MX35_PAD_NFWP_B__ARM11P_TOP_TRCTL */
+	[162] = IMX_PIN_REG(MX35_PAD_NFRB, 0x4e0, 0x0dc, 0, 0x0, 0), /* MX35_PAD_NFRB__EMI_NANDF_RB */
+	[163] = IMX_PIN_REG(MX35_PAD_NFRB, 0x4e0, 0x0dc, 2, 0x0, 0), /* MX35_PAD_NFRB__IPU_DISPB_RD */
+	[164] = IMX_PIN_REG(MX35_PAD_NFRB, 0x4e0, 0x0dc, 5, 0x8a4, 0), /* MX35_PAD_NFRB__GPIO2_23 */
+	[165] = IMX_PIN_REG(MX35_PAD_NFRB, 0x4e0, 0x0dc, 7, 0x0, 0), /* MX35_PAD_NFRB__ARM11P_TOP_TRCLK */
+	[166] = IMX_PIN_REG(MX35_PAD_D15, 0x4e4, 0x0, 0, 0x0, 0), /* MX35_PAD_D15__EMI_EIM_D_15 */
+	[167] = IMX_PIN_REG(MX35_PAD_D14, 0x4e8, 0x0, 0, 0x0, 0), /* MX35_PAD_D14__EMI_EIM_D_14 */
+	[168] = IMX_PIN_REG(MX35_PAD_D13, 0x4ec, 0x0, 0, 0x0, 0), /* MX35_PAD_D13__EMI_EIM_D_13 */
+	[169] = IMX_PIN_REG(MX35_PAD_D12, 0x4f0, 0x0, 0, 0x0, 0), /* MX35_PAD_D12__EMI_EIM_D_12 */
+	[170] = IMX_PIN_REG(MX35_PAD_D11, 0x4f4, 0x0, 0, 0x0, 0), /* MX35_PAD_D11__EMI_EIM_D_11 */
+	[171] = IMX_PIN_REG(MX35_PAD_D10, 0x4f8, 0x0, 0, 0x0, 0), /* MX35_PAD_D10__EMI_EIM_D_10 */
+	[172] = IMX_PIN_REG(MX35_PAD_D9, 0x4fc, 0x0, 0, 0x0, 0), /* MX35_PAD_D9__EMI_EIM_D_9 */
+	[173] = IMX_PIN_REG(MX35_PAD_D8, 0x500, 0x0, 0, 0x0, 0), /* MX35_PAD_D8__EMI_EIM_D_8 */
+	[174] = IMX_PIN_REG(MX35_PAD_D7, 0x504, 0x0, 0, 0x0, 0), /* MX35_PAD_D7__EMI_EIM_D_7 */
+	[175] = IMX_PIN_REG(MX35_PAD_D6, 0x508, 0x0, 0, 0x0, 0), /* MX35_PAD_D6__EMI_EIM_D_6 */
+	[176] = IMX_PIN_REG(MX35_PAD_D5, 0x50c, 0x0, 0, 0x0, 0), /* MX35_PAD_D5__EMI_EIM_D_5 */
+	[177] = IMX_PIN_REG(MX35_PAD_D4, 0x510, 0x0, 0, 0x0, 0), /* MX35_PAD_D4__EMI_EIM_D_4 */
+	[178] = IMX_PIN_REG(MX35_PAD_D3, 0x514, 0x0, 0, 0x0, 0), /* MX35_PAD_D3__EMI_EIM_D_3 */
+	[179] = IMX_PIN_REG(MX35_PAD_D2, 0x518, 0x0, 0, 0x0, 0), /* MX35_PAD_D2__EMI_EIM_D_2 */
+	[180] = IMX_PIN_REG(MX35_PAD_D1, 0x51c, 0x0, 0, 0x0, 0), /* MX35_PAD_D1__EMI_EIM_D_1 */
+	[181] = IMX_PIN_REG(MX35_PAD_D0, 0x520, 0x0, 0, 0x0, 0), /* MX35_PAD_D0__EMI_EIM_D_0 */
+	[182] = IMX_PIN_REG(MX35_PAD_CSI_D8, 0x524, 0x0e0, 0, 0x0, 0), /* MX35_PAD_CSI_D8__IPU_CSI_D_8 */
+	[183] = IMX_PIN_REG(MX35_PAD_CSI_D8, 0x524, 0x0e0, 1, 0x950, 0), /* MX35_PAD_CSI_D8__KPP_COL_0 */
+	[184] = IMX_PIN_REG(MX35_PAD_CSI_D8, 0x524, 0x0e0, 5, 0x83c, 1), /* MX35_PAD_CSI_D8__GPIO1_20 */
+	[185] = IMX_PIN_REG(MX35_PAD_CSI_D8, 0x524, 0x0e0, 7, 0x0, 0), /* MX35_PAD_CSI_D8__ARM11P_TOP_EVNTBUS_13 */
+	[186] = IMX_PIN_REG(MX35_PAD_CSI_D9, 0x528, 0x0e4, 0, 0x0, 0), /* MX35_PAD_CSI_D9__IPU_CSI_D_9 */
+	[187] = IMX_PIN_REG(MX35_PAD_CSI_D9, 0x528, 0x0e4, 1, 0x954, 0), /* MX35_PAD_CSI_D9__KPP_COL_1 */
+	[188] = IMX_PIN_REG(MX35_PAD_CSI_D9, 0x528, 0x0e4, 5, 0x840, 1), /* MX35_PAD_CSI_D9__GPIO1_21 */
+	[189] = IMX_PIN_REG(MX35_PAD_CSI_D9, 0x528, 0x0e4, 7, 0x0, 0), /* MX35_PAD_CSI_D9__ARM11P_TOP_EVNTBUS_14 */
+	[190] = IMX_PIN_REG(MX35_PAD_CSI_D10, 0x52c, 0x0e8, 0, 0x0, 0), /* MX35_PAD_CSI_D10__IPU_CSI_D_10 */
+	[191] = IMX_PIN_REG(MX35_PAD_CSI_D10, 0x52c, 0x0e8, 1, 0x958, 0), /* MX35_PAD_CSI_D10__KPP_COL_2 */
+	[192] = IMX_PIN_REG(MX35_PAD_CSI_D10, 0x52c, 0x0e8, 5, 0x844, 1), /* MX35_PAD_CSI_D10__GPIO1_22 */
+	[193] = IMX_PIN_REG(MX35_PAD_CSI_D10, 0x52c, 0x0e8, 7, 0x0, 0), /* MX35_PAD_CSI_D10__ARM11P_TOP_EVNTBUS_15 */
+	[194] = IMX_PIN_REG(MX35_PAD_CSI_D11, 0x530, 0x0ec, 0, 0x0, 0), /* MX35_PAD_CSI_D11__IPU_CSI_D_11 */
+	[195] = IMX_PIN_REG(MX35_PAD_CSI_D11, 0x530, 0x0ec, 1, 0x95c, 0), /* MX35_PAD_CSI_D11__KPP_COL_3 */
+	[196] = IMX_PIN_REG(MX35_PAD_CSI_D11, 0x530, 0x0ec, 5, 0x0, 0), /* MX35_PAD_CSI_D11__GPIO1_23 */
+	[197] = IMX_PIN_REG(MX35_PAD_CSI_D12, 0x534, 0x0f0, 0, 0x0, 0), /* MX35_PAD_CSI_D12__IPU_CSI_D_12 */
+	[198] = IMX_PIN_REG(MX35_PAD_CSI_D12, 0x534, 0x0f0, 1, 0x970, 0), /* MX35_PAD_CSI_D12__KPP_ROW_0 */
+	[199] = IMX_PIN_REG(MX35_PAD_CSI_D12, 0x534, 0x0f0, 5, 0x0, 0), /* MX35_PAD_CSI_D12__GPIO1_24 */
+	[200] = IMX_PIN_REG(MX35_PAD_CSI_D13, 0x538, 0x0f4, 0, 0x0, 0), /* MX35_PAD_CSI_D13__IPU_CSI_D_13 */
+	[201] = IMX_PIN_REG(MX35_PAD_CSI_D13, 0x538, 0x0f4, 1, 0x974, 0), /* MX35_PAD_CSI_D13__KPP_ROW_1 */
+	[202] = IMX_PIN_REG(MX35_PAD_CSI_D13, 0x538, 0x0f4, 5, 0x0, 0), /* MX35_PAD_CSI_D13__GPIO1_25 */
+	[203] = IMX_PIN_REG(MX35_PAD_CSI_D14, 0x53c, 0x0f8, 0, 0x0, 0), /* MX35_PAD_CSI_D14__IPU_CSI_D_14 */
+	[204] = IMX_PIN_REG(MX35_PAD_CSI_D14, 0x53c, 0x0f8, 1, 0x978, 0), /* MX35_PAD_CSI_D14__KPP_ROW_2 */
+	[205] = IMX_PIN_REG(MX35_PAD_CSI_D14, 0x53c, 0x0f8, 5, 0x0, 0), /* MX35_PAD_CSI_D14__GPIO1_26 */
+	[206] = IMX_PIN_REG(MX35_PAD_CSI_D15, 0x540, 0x0fc, 0, 0x97c, 0), /* MX35_PAD_CSI_D15__IPU_CSI_D_15 */
+	[207] = IMX_PIN_REG(MX35_PAD_CSI_D15, 0x540, 0x0fc, 1, 0x0, 0), /* MX35_PAD_CSI_D15__KPP_ROW_3 */
+	[208] = IMX_PIN_REG(MX35_PAD_CSI_D15, 0x540, 0x0fc, 5, 0x0, 0), /* MX35_PAD_CSI_D15__GPIO1_27 */
+	[209] = IMX_PIN_REG(MX35_PAD_CSI_MCLK, 0x544, 0x100, 0, 0x0, 0), /* MX35_PAD_CSI_MCLK__IPU_CSI_MCLK */
+	[210] = IMX_PIN_REG(MX35_PAD_CSI_MCLK, 0x544, 0x100, 5, 0x0, 0), /* MX35_PAD_CSI_MCLK__GPIO1_28 */
+	[211] = IMX_PIN_REG(MX35_PAD_CSI_VSYNC, 0x548, 0x104, 0, 0x0, 0), /* MX35_PAD_CSI_VSYNC__IPU_CSI_VSYNC */
+	[212] = IMX_PIN_REG(MX35_PAD_CSI_VSYNC, 0x548, 0x104, 5, 0x0, 0), /* MX35_PAD_CSI_VSYNC__GPIO1_29 */
+	[213] = IMX_PIN_REG(MX35_PAD_CSI_HSYNC, 0x54c, 0x108, 0, 0x0, 0), /* MX35_PAD_CSI_HSYNC__IPU_CSI_HSYNC */
+	[214] = IMX_PIN_REG(MX35_PAD_CSI_HSYNC, 0x54c, 0x108, 5, 0x0, 0), /* MX35_PAD_CSI_HSYNC__GPIO1_30 */
+	[215] = IMX_PIN_REG(MX35_PAD_CSI_PIXCLK, 0x550, 0x10c, 0, 0x0, 0), /* MX35_PAD_CSI_PIXCLK__IPU_CSI_PIXCLK */
+	[216] = IMX_PIN_REG(MX35_PAD_CSI_PIXCLK, 0x550, 0x10c, 5, 0x0, 0), /* MX35_PAD_CSI_PIXCLK__GPIO1_31 */
+	[217] = IMX_PIN_REG(MX35_PAD_I2C1_CLK, 0x554, 0x110, 0, 0x0, 0), /* MX35_PAD_I2C1_CLK__I2C1_SCL */
+	[218] = IMX_PIN_REG(MX35_PAD_I2C1_CLK, 0x554, 0x110, 5, 0x8a8, 0), /* MX35_PAD_I2C1_CLK__GPIO2_24 */
+	[219] = IMX_PIN_REG(MX35_PAD_I2C1_CLK, 0x554, 0x110, 6, 0x0, 0), /* MX35_PAD_I2C1_CLK__CCM_USB_BYP_CLK */
+	[220] = IMX_PIN_REG(MX35_PAD_I2C1_DAT, 0x558, 0x114, 0, 0x0, 0), /* MX35_PAD_I2C1_DAT__I2C1_SDA */
+	[221] = IMX_PIN_REG(MX35_PAD_I2C1_DAT, 0x558, 0x114, 5, 0x8ac, 0), /* MX35_PAD_I2C1_DAT__GPIO2_25 */
+	[222] = IMX_PIN_REG(MX35_PAD_I2C2_CLK, 0x55c, 0x118, 0, 0x0, 0), /* MX35_PAD_I2C2_CLK__I2C2_SCL */
+	[223] = IMX_PIN_REG(MX35_PAD_I2C2_CLK, 0x55c, 0x118, 1, 0x0, 0), /* MX35_PAD_I2C2_CLK__CAN1_TXCAN */
+	[224] = IMX_PIN_REG(MX35_PAD_I2C2_CLK, 0x55c, 0x118, 2, 0x0, 0), /* MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR */
+	[225] = IMX_PIN_REG(MX35_PAD_I2C2_CLK, 0x55c, 0x118, 5, 0x8b0, 0), /* MX35_PAD_I2C2_CLK__GPIO2_26 */
+	[226] = IMX_PIN_REG(MX35_PAD_I2C2_CLK, 0x55c, 0x118, 6, 0x0, 0), /* MX35_PAD_I2C2_CLK__SDMA_DEBUG_BUS_DEVICE_2 */
+	[227] = IMX_PIN_REG(MX35_PAD_I2C2_DAT, 0x560, 0x11c, 0, 0x0, 0), /* MX35_PAD_I2C2_DAT__I2C2_SDA */
+	[228] = IMX_PIN_REG(MX35_PAD_I2C2_DAT, 0x560, 0x11c, 1, 0x7c8, 0), /* MX35_PAD_I2C2_DAT__CAN1_RXCAN */
+	[229] = IMX_PIN_REG(MX35_PAD_I2C2_DAT, 0x560, 0x11c, 2, 0x9f4, 0), /* MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC */
+	[230] = IMX_PIN_REG(MX35_PAD_I2C2_DAT, 0x560, 0x11c, 5, 0x8b4, 0), /* MX35_PAD_I2C2_DAT__GPIO2_27 */
+	[231] = IMX_PIN_REG(MX35_PAD_I2C2_DAT, 0x560, 0x11c, 6, 0x0, 0), /* MX35_PAD_I2C2_DAT__SDMA_DEBUG_BUS_DEVICE_3 */
+	[232] = IMX_PIN_REG(MX35_PAD_STXD4, 0x564, 0x120, 0, 0x0, 0), /* MX35_PAD_STXD4__AUDMUX_AUD4_TXD */
+	[233] = IMX_PIN_REG(MX35_PAD_STXD4, 0x564, 0x120, 5, 0x8b8, 0), /* MX35_PAD_STXD4__GPIO2_28 */
+	[234] = IMX_PIN_REG(MX35_PAD_STXD4, 0x564, 0x120, 7, 0x0, 0), /* MX35_PAD_STXD4__ARM11P_TOP_ARM_COREASID0 */
+	[235] = IMX_PIN_REG(MX35_PAD_SRXD4, 0x568, 0x124, 0, 0x0, 0), /* MX35_PAD_SRXD4__AUDMUX_AUD4_RXD */
+	[236] = IMX_PIN_REG(MX35_PAD_SRXD4, 0x568, 0x124, 5, 0x8bc, 0), /* MX35_PAD_SRXD4__GPIO2_29 */
+	[237] = IMX_PIN_REG(MX35_PAD_SRXD4, 0x568, 0x124, 7, 0x0, 0), /* MX35_PAD_SRXD4__ARM11P_TOP_ARM_COREASID1 */
+	[238] = IMX_PIN_REG(MX35_PAD_SCK4, 0x56c, 0x128, 0, 0x0, 0), /* MX35_PAD_SCK4__AUDMUX_AUD4_TXC */
+	[239] = IMX_PIN_REG(MX35_PAD_SCK4, 0x56c, 0x128, 5, 0x8c4, 0), /* MX35_PAD_SCK4__GPIO2_30 */
+	[240] = IMX_PIN_REG(MX35_PAD_SCK4, 0x56c, 0x128, 7, 0x0, 0), /* MX35_PAD_SCK4__ARM11P_TOP_ARM_COREASID2 */
+	[241] = IMX_PIN_REG(MX35_PAD_STXFS4, 0x570, 0x12c, 0, 0x0, 0), /* MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS */
+	[242] = IMX_PIN_REG(MX35_PAD_STXFS4, 0x570, 0x12c, 5, 0x8c8, 0), /* MX35_PAD_STXFS4__GPIO2_31 */
+	[243] = IMX_PIN_REG(MX35_PAD_STXFS4, 0x570, 0x12c, 7, 0x0, 0), /* MX35_PAD_STXFS4__ARM11P_TOP_ARM_COREASID3 */
+	[244] = IMX_PIN_REG(MX35_PAD_STXD5, 0x574, 0x130, 0, 0x0, 0), /* MX35_PAD_STXD5__AUDMUX_AUD5_TXD */
+	[245] = IMX_PIN_REG(MX35_PAD_STXD5, 0x574, 0x130, 1, 0x0, 0), /* MX35_PAD_STXD5__SPDIF_SPDIF_OUT1 */
+	[246] = IMX_PIN_REG(MX35_PAD_STXD5, 0x574, 0x130, 2, 0x7ec, 0), /* MX35_PAD_STXD5__CSPI2_MOSI */
+	[247] = IMX_PIN_REG(MX35_PAD_STXD5, 0x574, 0x130, 5, 0x82c, 1), /* MX35_PAD_STXD5__GPIO1_0 */
+	[248] = IMX_PIN_REG(MX35_PAD_STXD5, 0x574, 0x130, 7, 0x0, 0), /* MX35_PAD_STXD5__ARM11P_TOP_ARM_COREASID4 */
+	[249] = IMX_PIN_REG(MX35_PAD_SRXD5, 0x578, 0x134, 0, 0x0, 0), /* MX35_PAD_SRXD5__AUDMUX_AUD5_RXD */
+	[250] = IMX_PIN_REG(MX35_PAD_SRXD5, 0x578, 0x134, 1, 0x998, 0), /* MX35_PAD_SRXD5__SPDIF_SPDIF_IN1 */
+	[251] = IMX_PIN_REG(MX35_PAD_SRXD5, 0x578, 0x134, 2, 0x7e8, 0), /* MX35_PAD_SRXD5__CSPI2_MISO */
+	[252] = IMX_PIN_REG(MX35_PAD_SRXD5, 0x578, 0x134, 5, 0x838, 1), /* MX35_PAD_SRXD5__GPIO1_1 */
+	[253] = IMX_PIN_REG(MX35_PAD_SRXD5, 0x578, 0x134, 7, 0x0, 0), /* MX35_PAD_SRXD5__ARM11P_TOP_ARM_COREASID5 */
+	[254] = IMX_PIN_REG(MX35_PAD_SCK5, 0x57c, 0x138, 0, 0x0, 0), /* MX35_PAD_SCK5__AUDMUX_AUD5_TXC */
+	[255] = IMX_PIN_REG(MX35_PAD_SCK5, 0x57c, 0x138, 1, 0x994, 0), /* MX35_PAD_SCK5__SPDIF_SPDIF_EXTCLK */
+	[256] = IMX_PIN_REG(MX35_PAD_SCK5, 0x57c, 0x138, 2, 0x7e0, 0), /* MX35_PAD_SCK5__CSPI2_SCLK */
+	[257] = IMX_PIN_REG(MX35_PAD_SCK5, 0x57c, 0x138, 5, 0x848, 0), /* MX35_PAD_SCK5__GPIO1_2 */
+	[258] = IMX_PIN_REG(MX35_PAD_SCK5, 0x57c, 0x138, 7, 0x0, 0), /* MX35_PAD_SCK5__ARM11P_TOP_ARM_COREASID6 */
+	[259] = IMX_PIN_REG(MX35_PAD_STXFS5, 0x580, 0x13c, 0, 0x0, 0), /* MX35_PAD_STXFS5__AUDMUX_AUD5_TXFS */
+	[260] = IMX_PIN_REG(MX35_PAD_STXFS5, 0x580, 0x13c, 2, 0x7e4, 0), /* MX35_PAD_STXFS5__CSPI2_RDY */
+	[261] = IMX_PIN_REG(MX35_PAD_STXFS5, 0x580, 0x13c, 5, 0x84c, 0), /* MX35_PAD_STXFS5__GPIO1_3 */
+	[262] = IMX_PIN_REG(MX35_PAD_STXFS5, 0x580, 0x13c, 7, 0x0, 0), /* MX35_PAD_STXFS5__ARM11P_TOP_ARM_COREASID7 */
+	[263] = IMX_PIN_REG(MX35_PAD_SCKR, 0x584, 0x140, 0, 0x0, 0), /* MX35_PAD_SCKR__ESAI_SCKR */
+	[264] = IMX_PIN_REG(MX35_PAD_SCKR, 0x584, 0x140, 5, 0x850, 1), /* MX35_PAD_SCKR__GPIO1_4 */
+	[265] = IMX_PIN_REG(MX35_PAD_SCKR, 0x584, 0x140, 7, 0x0, 0), /* MX35_PAD_SCKR__ARM11P_TOP_EVNTBUS_10 */
+	[266] = IMX_PIN_REG(MX35_PAD_FSR, 0x588, 0x144, 0, 0x0, 0), /* MX35_PAD_FSR__ESAI_FSR */
+	[267] = IMX_PIN_REG(MX35_PAD_FSR, 0x588, 0x144, 5, 0x854, 1), /* MX35_PAD_FSR__GPIO1_5 */
+	[268] = IMX_PIN_REG(MX35_PAD_FSR, 0x588, 0x144, 7, 0x0, 0), /* MX35_PAD_FSR__ARM11P_TOP_EVNTBUS_11 */
+	[269] = IMX_PIN_REG(MX35_PAD_HCKR, 0x58c, 0x148, 0, 0x0, 0), /* MX35_PAD_HCKR__ESAI_HCKR */
+	[270] = IMX_PIN_REG(MX35_PAD_HCKR, 0x58c, 0x148, 1, 0x0, 0), /* MX35_PAD_HCKR__AUDMUX_AUD5_RXFS */
+	[271] = IMX_PIN_REG(MX35_PAD_HCKR, 0x58c, 0x148, 2, 0x7f0, 0), /* MX35_PAD_HCKR__CSPI2_SS0 */
+	[272] = IMX_PIN_REG(MX35_PAD_HCKR, 0x58c, 0x148, 3, 0x0, 0), /* MX35_PAD_HCKR__IPU_FLASH_STROBE */
+	[273] = IMX_PIN_REG(MX35_PAD_HCKR, 0x58c, 0x148, 5, 0x858, 1), /* MX35_PAD_HCKR__GPIO1_6 */
+	[274] = IMX_PIN_REG(MX35_PAD_HCKR, 0x58c, 0x148, 7, 0x0, 0), /* MX35_PAD_HCKR__ARM11P_TOP_EVNTBUS_12 */
+	[275] = IMX_PIN_REG(MX35_PAD_SCKT, 0x590, 0x14c, 0, 0x0, 0), /* MX35_PAD_SCKT__ESAI_SCKT */
+	[276] = IMX_PIN_REG(MX35_PAD_SCKT, 0x590, 0x14c, 5, 0x85c, 1), /* MX35_PAD_SCKT__GPIO1_7 */
+	[277] = IMX_PIN_REG(MX35_PAD_SCKT, 0x590, 0x14c, 6, 0x930, 0), /* MX35_PAD_SCKT__IPU_CSI_D_0 */
+	[278] = IMX_PIN_REG(MX35_PAD_SCKT, 0x590, 0x14c, 7, 0x978, 1), /* MX35_PAD_SCKT__KPP_ROW_2 */
+	[279] = IMX_PIN_REG(MX35_PAD_FST, 0x594, 0x150, 0, 0x0, 0), /* MX35_PAD_FST__ESAI_FST */
+	[280] = IMX_PIN_REG(MX35_PAD_FST, 0x594, 0x150, 5, 0x860, 1), /* MX35_PAD_FST__GPIO1_8 */
+	[281] = IMX_PIN_REG(MX35_PAD_FST, 0x594, 0x150, 6, 0x934, 0), /* MX35_PAD_FST__IPU_CSI_D_1 */
+	[282] = IMX_PIN_REG(MX35_PAD_FST, 0x594, 0x150, 7, 0x97c, 1), /* MX35_PAD_FST__KPP_ROW_3 */
+	[283] = IMX_PIN_REG(MX35_PAD_HCKT, 0x598, 0x154, 0, 0x0, 0), /* MX35_PAD_HCKT__ESAI_HCKT */
+	[284] = IMX_PIN_REG(MX35_PAD_HCKT, 0x598, 0x154, 1, 0x7a8, 0), /* MX35_PAD_HCKT__AUDMUX_AUD5_RXC */
+	[285] = IMX_PIN_REG(MX35_PAD_HCKT, 0x598, 0x154, 5, 0x864, 0), /* MX35_PAD_HCKT__GPIO1_9 */
+	[286] = IMX_PIN_REG(MX35_PAD_HCKT, 0x598, 0x154, 6, 0x938, 0), /* MX35_PAD_HCKT__IPU_CSI_D_2 */
+	[287] = IMX_PIN_REG(MX35_PAD_HCKT, 0x598, 0x154, 7, 0x95c, 1), /* MX35_PAD_HCKT__KPP_COL_3 */
+	[288] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 0, 0x0, 0), /* MX35_PAD_TX5_RX0__ESAI_TX5_RX0 */
+	[289] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 1, 0x0, 0), /* MX35_PAD_TX5_RX0__AUDMUX_AUD4_RXC */
+	[290] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 2, 0x7f8, 1), /* MX35_PAD_TX5_RX0__CSPI2_SS2 */
+	[291] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 3, 0x0, 0), /* MX35_PAD_TX5_RX0__CAN2_TXCAN */
+	[292] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 4, 0x0, 0), /* MX35_PAD_TX5_RX0__UART2_DTR */
+	[293] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 5, 0x830, 0), /* MX35_PAD_TX5_RX0__GPIO1_10 */
+	[294] = IMX_PIN_REG(MX35_PAD_TX5_RX0, 0x59c, 0x158, 7, 0x0, 0), /* MX35_PAD_TX5_RX0__EMI_M3IF_CHOSEN_MASTER_0 */
+	[295] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 0, 0x0, 0), /* MX35_PAD_TX4_RX1__ESAI_TX4_RX1 */
+	[296] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 1, 0x0, 0), /* MX35_PAD_TX4_RX1__AUDMUX_AUD4_RXFS */
+	[297] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 2, 0x7fc, 0), /* MX35_PAD_TX4_RX1__CSPI2_SS3 */
+	[298] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 3, 0x7cc, 0), /* MX35_PAD_TX4_RX1__CAN2_RXCAN */
+	[299] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 4, 0x0, 0), /* MX35_PAD_TX4_RX1__UART2_DSR */
+	[300] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 5, 0x834, 0), /* MX35_PAD_TX4_RX1__GPIO1_11 */
+	[301] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 6, 0x93c, 0), /* MX35_PAD_TX4_RX1__IPU_CSI_D_3 */
+	[302] = IMX_PIN_REG(MX35_PAD_TX4_RX1, 0x5a0, 0x15c, 7, 0x970, 1), /* MX35_PAD_TX4_RX1__KPP_ROW_0 */
+	[303] = IMX_PIN_REG(MX35_PAD_TX3_RX2, 0x5a4, 0x160, 0, 0x0, 0), /* MX35_PAD_TX3_RX2__ESAI_TX3_RX2 */
+	[304] = IMX_PIN_REG(MX35_PAD_TX3_RX2, 0x5a4, 0x160, 1, 0x91c, 0), /* MX35_PAD_TX3_RX2__I2C3_SCL */
+	[305] = IMX_PIN_REG(MX35_PAD_TX3_RX2, 0x5a4, 0x160, 3, 0x0, 0), /* MX35_PAD_TX3_RX2__EMI_NANDF_CE1 */
+	[306] = IMX_PIN_REG(MX35_PAD_TX3_RX2, 0x5a4, 0x160, 5, 0x0, 0), /* MX35_PAD_TX3_RX2__GPIO1_12 */
+	[307] = IMX_PIN_REG(MX35_PAD_TX3_RX2, 0x5a4, 0x160, 6, 0x940, 0), /* MX35_PAD_TX3_RX2__IPU_CSI_D_4 */
+	[308] = IMX_PIN_REG(MX35_PAD_TX3_RX2, 0x5a4, 0x160, 7, 0x974, 1), /* MX35_PAD_TX3_RX2__KPP_ROW_1 */
+	[309] = IMX_PIN_REG(MX35_PAD_TX2_RX3, 0x5a8, 0x164, 0, 0x0, 0), /* MX35_PAD_TX2_RX3__ESAI_TX2_RX3 */
+	[310] = IMX_PIN_REG(MX35_PAD_TX2_RX3, 0x5a8, 0x164, 1, 0x920, 0), /* MX35_PAD_TX2_RX3__I2C3_SDA */
+	[311] = IMX_PIN_REG(MX35_PAD_TX2_RX3, 0x5a8, 0x164, 3, 0x0, 0), /* MX35_PAD_TX2_RX3__EMI_NANDF_CE2 */
+	[312] = IMX_PIN_REG(MX35_PAD_TX2_RX3, 0x5a8, 0x164, 5, 0x0, 0), /* MX35_PAD_TX2_RX3__GPIO1_13 */
+	[313] = IMX_PIN_REG(MX35_PAD_TX2_RX3, 0x5a8, 0x164, 6, 0x944, 0), /* MX35_PAD_TX2_RX3__IPU_CSI_D_5 */
+	[314] = IMX_PIN_REG(MX35_PAD_TX2_RX3, 0x5a8, 0x164, 7, 0x950, 1), /* MX35_PAD_TX2_RX3__KPP_COL_0 */
+	[315] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 0, 0x0, 0), /* MX35_PAD_TX1__ESAI_TX1 */
+	[316] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 1, 0x7d4, 1), /* MX35_PAD_TX1__CCM_PMIC_RDY */
+	[317] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 2, 0x7d8, 2), /* MX35_PAD_TX1__CSPI1_SS2 */
+	[318] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 3, 0x0, 0), /* MX35_PAD_TX1__EMI_NANDF_CE3 */
+	[319] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 4, 0x0, 0), /* MX35_PAD_TX1__UART2_RI */
+	[320] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 5, 0x0, 0), /* MX35_PAD_TX1__GPIO1_14 */
+	[321] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 6, 0x948, 0), /* MX35_PAD_TX1__IPU_CSI_D_6 */
+	[322] = IMX_PIN_REG(MX35_PAD_TX1, 0x5ac, 0x168, 7, 0x954, 1), /* MX35_PAD_TX1__KPP_COL_1 */
+	[323] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 0, 0x0, 0), /* MX35_PAD_TX0__ESAI_TX0 */
+	[324] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 1, 0x994, 1), /* MX35_PAD_TX0__SPDIF_SPDIF_EXTCLK */
+	[325] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 2, 0x7dc, 0), /* MX35_PAD_TX0__CSPI1_SS3 */
+	[326] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 3, 0x800, 1), /* MX35_PAD_TX0__EMI_DTACK_B */
+	[327] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 4, 0x0, 0), /* MX35_PAD_TX0__UART2_DCD */
+	[328] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 5, 0x0, 0), /* MX35_PAD_TX0__GPIO1_15 */
+	[329] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 6, 0x94c, 0), /* MX35_PAD_TX0__IPU_CSI_D_7 */
+	[330] = IMX_PIN_REG(MX35_PAD_TX0, 0x5b0, 0x16c, 7, 0x958, 1), /* MX35_PAD_TX0__KPP_COL_2 */
+	[331] = IMX_PIN_REG(MX35_PAD_CSPI1_MOSI, 0x5b4, 0x170, 0, 0x0, 0), /* MX35_PAD_CSPI1_MOSI__CSPI1_MOSI */
+	[332] = IMX_PIN_REG(MX35_PAD_CSPI1_MOSI, 0x5b4, 0x170, 5, 0x0, 0), /* MX35_PAD_CSPI1_MOSI__GPIO1_16 */
+	[333] = IMX_PIN_REG(MX35_PAD_CSPI1_MOSI, 0x5b4, 0x170, 7, 0x0, 0), /* MX35_PAD_CSPI1_MOSI__ECT_CTI_TRIG_OUT1_2 */
+	[334] = IMX_PIN_REG(MX35_PAD_CSPI1_MISO, 0x5b8, 0x174, 0, 0x0, 0), /* MX35_PAD_CSPI1_MISO__CSPI1_MISO */
+	[335] = IMX_PIN_REG(MX35_PAD_CSPI1_MISO, 0x5b8, 0x174, 5, 0x0, 0), /* MX35_PAD_CSPI1_MISO__GPIO1_17 */
+	[336] = IMX_PIN_REG(MX35_PAD_CSPI1_MISO, 0x5b8, 0x174, 7, 0x0, 0), /* MX35_PAD_CSPI1_MISO__ECT_CTI_TRIG_OUT1_3 */
+	[337] = IMX_PIN_REG(MX35_PAD_CSPI1_SS0, 0x5bc, 0x178, 0, 0x0, 0), /* MX35_PAD_CSPI1_SS0__CSPI1_SS0 */
+	[338] = IMX_PIN_REG(MX35_PAD_CSPI1_SS0, 0x5bc, 0x178, 1, 0x990, 1), /* MX35_PAD_CSPI1_SS0__OWIRE_LINE */
+	[339] = IMX_PIN_REG(MX35_PAD_CSPI1_SS0, 0x5bc, 0x178, 2, 0x7fc, 1), /* MX35_PAD_CSPI1_SS0__CSPI2_SS3 */
+	[340] = IMX_PIN_REG(MX35_PAD_CSPI1_SS0, 0x5bc, 0x178, 5, 0x0, 0), /* MX35_PAD_CSPI1_SS0__GPIO1_18 */
+	[341] = IMX_PIN_REG(MX35_PAD_CSPI1_SS0, 0x5bc, 0x178, 7, 0x0, 0), /* MX35_PAD_CSPI1_SS0__ECT_CTI_TRIG_OUT1_4 */
+	[342] = IMX_PIN_REG(MX35_PAD_CSPI1_SS1, 0x5c0, 0x17c, 0, 0x0, 0), /* MX35_PAD_CSPI1_SS1__CSPI1_SS1 */
+	[343] = IMX_PIN_REG(MX35_PAD_CSPI1_SS1, 0x5c0, 0x17c, 1, 0x0, 0), /* MX35_PAD_CSPI1_SS1__PWM_PWMO */
+	[344] = IMX_PIN_REG(MX35_PAD_CSPI1_SS1, 0x5c0, 0x17c, 2, 0x7d0, 1), /* MX35_PAD_CSPI1_SS1__CCM_CLK32K */
+	[345] = IMX_PIN_REG(MX35_PAD_CSPI1_SS1, 0x5c0, 0x17c, 5, 0x0, 0), /* MX35_PAD_CSPI1_SS1__GPIO1_19 */
+	[346] = IMX_PIN_REG(MX35_PAD_CSPI1_SS1, 0x5c0, 0x17c, 6, 0x0, 0), /* MX35_PAD_CSPI1_SS1__IPU_DIAGB_29 */
+	[347] = IMX_PIN_REG(MX35_PAD_CSPI1_SS1, 0x5c0, 0x17c, 7, 0x0, 0), /* MX35_PAD_CSPI1_SS1__ECT_CTI_TRIG_OUT1_5 */
+	[348] = IMX_PIN_REG(MX35_PAD_CSPI1_SCLK, 0x5c4, 0x180, 0, 0x0, 0), /* MX35_PAD_CSPI1_SCLK__CSPI1_SCLK */
+	[349] = IMX_PIN_REG(MX35_PAD_CSPI1_SCLK, 0x5c4, 0x180, 5, 0x904, 0), /* MX35_PAD_CSPI1_SCLK__GPIO3_4 */
+	[350] = IMX_PIN_REG(MX35_PAD_CSPI1_SCLK, 0x5c4, 0x180, 6, 0x0, 0), /* MX35_PAD_CSPI1_SCLK__IPU_DIAGB_30 */
+	[351] = IMX_PIN_REG(MX35_PAD_CSPI1_SCLK, 0x5c4, 0x180, 7, 0x0, 0), /* MX35_PAD_CSPI1_SCLK__EMI_M3IF_CHOSEN_MASTER_1 */
+	[352] = IMX_PIN_REG(MX35_PAD_CSPI1_SPI_RDY, 0x5c8, 0x184, 0, 0x0, 0), /* MX35_PAD_CSPI1_SPI_RDY__CSPI1_RDY */
+	[353] = IMX_PIN_REG(MX35_PAD_CSPI1_SPI_RDY, 0x5c8, 0x184, 5, 0x908, 0), /* MX35_PAD_CSPI1_SPI_RDY__GPIO3_5 */
+	[354] = IMX_PIN_REG(MX35_PAD_CSPI1_SPI_RDY, 0x5c8, 0x184, 6, 0x0, 0), /* MX35_PAD_CSPI1_SPI_RDY__IPU_DIAGB_31 */
+	[355] = IMX_PIN_REG(MX35_PAD_CSPI1_SPI_RDY, 0x5c8, 0x184, 7, 0x0, 0), /* MX35_PAD_CSPI1_SPI_RDY__EMI_M3IF_CHOSEN_MASTER_2 */
+	[356] = IMX_PIN_REG(MX35_PAD_RXD1, 0x5cc, 0x188, 0, 0x0, 0), /* MX35_PAD_RXD1__UART1_RXD_MUX */
+	[357] = IMX_PIN_REG(MX35_PAD_RXD1, 0x5cc, 0x188, 1, 0x7ec, 1), /* MX35_PAD_RXD1__CSPI2_MOSI */
+	[358] = IMX_PIN_REG(MX35_PAD_RXD1, 0x5cc, 0x188, 4, 0x960, 0), /* MX35_PAD_RXD1__KPP_COL_4 */
+	[359] = IMX_PIN_REG(MX35_PAD_RXD1, 0x5cc, 0x188, 5, 0x90c, 0), /* MX35_PAD_RXD1__GPIO3_6 */
+	[360] = IMX_PIN_REG(MX35_PAD_RXD1, 0x5cc, 0x188, 7, 0x0, 0), /* MX35_PAD_RXD1__ARM11P_TOP_EVNTBUS_16 */
+	[361] = IMX_PIN_REG(MX35_PAD_TXD1, 0x5d0, 0x18c, 0, 0x0, 0), /* MX35_PAD_TXD1__UART1_TXD_MUX */
+	[362] = IMX_PIN_REG(MX35_PAD_TXD1, 0x5d0, 0x18c, 1, 0x7e8, 1), /* MX35_PAD_TXD1__CSPI2_MISO */
+	[363] = IMX_PIN_REG(MX35_PAD_TXD1, 0x5d0, 0x18c, 4, 0x964, 0), /* MX35_PAD_TXD1__KPP_COL_5 */
+	[364] = IMX_PIN_REG(MX35_PAD_TXD1, 0x5d0, 0x18c, 5, 0x910, 0), /* MX35_PAD_TXD1__GPIO3_7 */
+	[365] = IMX_PIN_REG(MX35_PAD_TXD1, 0x5d0, 0x18c, 7, 0x0, 0), /* MX35_PAD_TXD1__ARM11P_TOP_EVNTBUS_17 */
+	[366] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 0, 0x0, 0), /* MX35_PAD_RTS1__UART1_RTS */
+	[367] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 1, 0x7e0, 1), /* MX35_PAD_RTS1__CSPI2_SCLK */
+	[368] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 2, 0x91c, 1), /* MX35_PAD_RTS1__I2C3_SCL */
+	[369] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 3, 0x930, 1), /* MX35_PAD_RTS1__IPU_CSI_D_0 */
+	[370] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 4, 0x968, 0), /* MX35_PAD_RTS1__KPP_COL_6 */
+	[371] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 5, 0x914, 0), /* MX35_PAD_RTS1__GPIO3_8 */
+	[372] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 6, 0x0, 0), /* MX35_PAD_RTS1__EMI_NANDF_CE1 */
+	[373] = IMX_PIN_REG(MX35_PAD_RTS1, 0x5d4, 0x190, 7, 0x0, 0), /* MX35_PAD_RTS1__ARM11P_TOP_EVNTBUS_18 */
+	[374] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 0, 0x0, 0), /* MX35_PAD_CTS1__UART1_CTS */
+	[375] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 1, 0x7e4, 1), /* MX35_PAD_CTS1__CSPI2_RDY */
+	[376] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 2, 0x920, 1), /* MX35_PAD_CTS1__I2C3_SDA */
+	[377] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 3, 0x934, 1), /* MX35_PAD_CTS1__IPU_CSI_D_1 */
+	[378] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 4, 0x96c, 0), /* MX35_PAD_CTS1__KPP_COL_7 */
+	[379] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 5, 0x918, 0), /* MX35_PAD_CTS1__GPIO3_9 */
+	[380] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 6, 0x0, 0), /* MX35_PAD_CTS1__EMI_NANDF_CE2 */
+	[381] = IMX_PIN_REG(MX35_PAD_CTS1, 0x5d8, 0x194, 7, 0x0, 0), /* MX35_PAD_CTS1__ARM11P_TOP_EVNTBUS_19 */
+	[382] = IMX_PIN_REG(MX35_PAD_RXD2, 0x5dc, 0x198, 0, 0x0, 0), /* MX35_PAD_RXD2__UART2_RXD_MUX */
+	[383] = IMX_PIN_REG(MX35_PAD_RXD2, 0x5dc, 0x198, 4, 0x980, 0), /* MX35_PAD_RXD2__KPP_ROW_4 */
+	[384] = IMX_PIN_REG(MX35_PAD_RXD2, 0x5dc, 0x198, 5, 0x8ec, 0), /* MX35_PAD_RXD2__GPIO3_10 */
+	[385] = IMX_PIN_REG(MX35_PAD_TXD2, 0x5e0, 0x19c, 0, 0x0, 0), /* MX35_PAD_TXD2__UART2_TXD_MUX */
+	[386] = IMX_PIN_REG(MX35_PAD_TXD2, 0x5e0, 0x19c, 1, 0x994, 2), /* MX35_PAD_TXD2__SPDIF_SPDIF_EXTCLK */
+	[387] = IMX_PIN_REG(MX35_PAD_TXD2, 0x5e0, 0x19c, 4, 0x984, 0), /* MX35_PAD_TXD2__KPP_ROW_5 */
+	[388] = IMX_PIN_REG(MX35_PAD_TXD2, 0x5e0, 0x19c, 5, 0x8f0, 0), /* MX35_PAD_TXD2__GPIO3_11 */
+	[389] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 0, 0x0, 0), /* MX35_PAD_RTS2__UART2_RTS */
+	[390] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 1, 0x998, 1), /* MX35_PAD_RTS2__SPDIF_SPDIF_IN1 */
+	[391] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 2, 0x7cc, 1), /* MX35_PAD_RTS2__CAN2_RXCAN */
+	[392] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 3, 0x938, 1), /* MX35_PAD_RTS2__IPU_CSI_D_2 */
+	[393] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 4, 0x988, 0), /* MX35_PAD_RTS2__KPP_ROW_6 */
+	[394] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 5, 0x8f4, 0), /* MX35_PAD_RTS2__GPIO3_12 */
+	[395] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 6, 0x0, 0), /* MX35_PAD_RTS2__AUDMUX_AUD5_RXC */
+	[396] = IMX_PIN_REG(MX35_PAD_RTS2, 0x5e4, 0x1a0, 7, 0x9a0, 0), /* MX35_PAD_RTS2__UART3_RXD_MUX */
+	[397] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 0, 0x0, 0), /* MX35_PAD_CTS2__UART2_CTS */
+	[398] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 1, 0x0, 0), /* MX35_PAD_CTS2__SPDIF_SPDIF_OUT1 */
+	[399] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 2, 0x0, 0), /* MX35_PAD_CTS2__CAN2_TXCAN */
+	[400] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 3, 0x93c, 1), /* MX35_PAD_CTS2__IPU_CSI_D_3 */
+	[401] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 4, 0x98c, 0), /* MX35_PAD_CTS2__KPP_ROW_7 */
+	[402] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 5, 0x8f8, 0), /* MX35_PAD_CTS2__GPIO3_13 */
+	[403] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 6, 0x0, 0), /* MX35_PAD_CTS2__AUDMUX_AUD5_RXFS */
+	[404] = IMX_PIN_REG(MX35_PAD_CTS2, 0x5e8, 0x1a4, 7, 0x0, 0), /* MX35_PAD_CTS2__UART3_TXD_MUX */
+	[405] = IMX_PIN_REG(MX35_PAD_RTCK, 0x5ec, 0x0, 0, 0x0, 0), /* MX35_PAD_RTCK__ARM11P_TOP_RTCK */
+	[406] = IMX_PIN_REG(MX35_PAD_TCK, 0x5f0, 0x0, 0, 0x0, 0), /* MX35_PAD_TCK__SJC_TCK */
+	[407] = IMX_PIN_REG(MX35_PAD_TMS, 0x5f4, 0x0, 0, 0x0, 0), /* MX35_PAD_TMS__SJC_TMS */
+	[408] = IMX_PIN_REG(MX35_PAD_TDI, 0x5f8, 0x0, 0, 0x0, 0), /* MX35_PAD_TDI__SJC_TDI */
+	[409] = IMX_PIN_REG(MX35_PAD_TDO, 0x5fc, 0x0, 0, 0x0, 0), /* MX35_PAD_TDO__SJC_TDO */
+	[410] = IMX_PIN_REG(MX35_PAD_TRSTB, 0x600, 0x0, 0, 0x0, 0), /* MX35_PAD_TRSTB__SJC_TRSTB */
+	[411] = IMX_PIN_REG(MX35_PAD_DE_B, 0x604, 0x0, 0, 0x0, 0), /* MX35_PAD_DE_B__SJC_DE_B */
+	[412] = IMX_PIN_REG(MX35_PAD_SJC_MOD, 0x608, 0x0, 0, 0x0, 0), /* MX35_PAD_SJC_MOD__SJC_MOD */
+	[413] = IMX_PIN_REG(MX35_PAD_USBOTG_PWR, 0x60c, 0x1a8, 0, 0x0, 0), /* MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR */
+	[414] = IMX_PIN_REG(MX35_PAD_USBOTG_PWR, 0x60c, 0x1a8, 1, 0x0, 0), /* MX35_PAD_USBOTG_PWR__USB_TOP_USBH2_PWR */
+	[415] = IMX_PIN_REG(MX35_PAD_USBOTG_PWR, 0x60c, 0x1a8, 5, 0x8fc, 0), /* MX35_PAD_USBOTG_PWR__GPIO3_14 */
+	[416] = IMX_PIN_REG(MX35_PAD_USBOTG_OC, 0x610, 0x1ac, 0, 0x0, 0), /* MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC */
+	[417] = IMX_PIN_REG(MX35_PAD_USBOTG_OC, 0x610, 0x1ac, 1, 0x9f4, 1), /* MX35_PAD_USBOTG_OC__USB_TOP_USBH2_OC */
+	[418] = IMX_PIN_REG(MX35_PAD_USBOTG_OC, 0x610, 0x1ac, 5, 0x900, 0), /* MX35_PAD_USBOTG_OC__GPIO3_15 */
+	[419] = IMX_PIN_REG(MX35_PAD_LD0, 0x614, 0x1b0, 0, 0x0, 0), /* MX35_PAD_LD0__IPU_DISPB_DAT_0 */
+	[420] = IMX_PIN_REG(MX35_PAD_LD0, 0x614, 0x1b0, 5, 0x868, 1), /* MX35_PAD_LD0__GPIO2_0 */
+	[421] = IMX_PIN_REG(MX35_PAD_LD0, 0x614, 0x1b0, 6, 0x0, 0), /* MX35_PAD_LD0__SDMA_SDMA_DEBUG_PC_0 */
+	[422] = IMX_PIN_REG(MX35_PAD_LD1, 0x618, 0x1b4, 0, 0x0, 0), /* MX35_PAD_LD1__IPU_DISPB_DAT_1 */
+	[423] = IMX_PIN_REG(MX35_PAD_LD1, 0x618, 0x1b4, 5, 0x894, 0), /* MX35_PAD_LD1__GPIO2_1 */
+	[424] = IMX_PIN_REG(MX35_PAD_LD1, 0x618, 0x1b4, 6, 0x0, 0), /* MX35_PAD_LD1__SDMA_SDMA_DEBUG_PC_1 */
+	[425] = IMX_PIN_REG(MX35_PAD_LD2, 0x61c, 0x1b8, 0, 0x0, 0), /* MX35_PAD_LD2__IPU_DISPB_DAT_2 */
+	[426] = IMX_PIN_REG(MX35_PAD_LD2, 0x61c, 0x1b8, 5, 0x8c0, 0), /* MX35_PAD_LD2__GPIO2_2 */
+	[427] = IMX_PIN_REG(MX35_PAD_LD2, 0x61c, 0x1b8, 6, 0x0, 0), /* MX35_PAD_LD2__SDMA_SDMA_DEBUG_PC_2 */
+	[428] = IMX_PIN_REG(MX35_PAD_LD3, 0x620, 0x1bc, 0, 0x0, 0), /* MX35_PAD_LD3__IPU_DISPB_DAT_3 */
+	[429] = IMX_PIN_REG(MX35_PAD_LD3, 0x620, 0x1bc, 5, 0x8cc, 0), /* MX35_PAD_LD3__GPIO2_3 */
+	[430] = IMX_PIN_REG(MX35_PAD_LD3, 0x620, 0x1bc, 6, 0x0, 0), /* MX35_PAD_LD3__SDMA_SDMA_DEBUG_PC_3 */
+	[431] = IMX_PIN_REG(MX35_PAD_LD4, 0x624, 0x1c0, 0, 0x0, 0), /* MX35_PAD_LD4__IPU_DISPB_DAT_4 */
+	[432] = IMX_PIN_REG(MX35_PAD_LD4, 0x624, 0x1c0, 5, 0x8d0, 0), /* MX35_PAD_LD4__GPIO2_4 */
+	[433] = IMX_PIN_REG(MX35_PAD_LD4, 0x624, 0x1c0, 6, 0x0, 0), /* MX35_PAD_LD4__SDMA_SDMA_DEBUG_PC_4 */
+	[434] = IMX_PIN_REG(MX35_PAD_LD5, 0x628, 0x1c4, 0, 0x0, 0), /* MX35_PAD_LD5__IPU_DISPB_DAT_5 */
+	[435] = IMX_PIN_REG(MX35_PAD_LD5, 0x628, 0x1c4, 5, 0x8d4, 0), /* MX35_PAD_LD5__GPIO2_5 */
+	[436] = IMX_PIN_REG(MX35_PAD_LD5, 0x628, 0x1c4, 6, 0x0, 0), /* MX35_PAD_LD5__SDMA_SDMA_DEBUG_PC_5 */
+	[437] = IMX_PIN_REG(MX35_PAD_LD6, 0x62c, 0x1c8, 0, 0x0, 0), /* MX35_PAD_LD6__IPU_DISPB_DAT_6 */
+	[438] = IMX_PIN_REG(MX35_PAD_LD6, 0x62c, 0x1c8, 5, 0x8d8, 0), /* MX35_PAD_LD6__GPIO2_6 */
+	[439] = IMX_PIN_REG(MX35_PAD_LD6, 0x62c, 0x1c8, 6, 0x0, 0), /* MX35_PAD_LD6__SDMA_SDMA_DEBUG_PC_6 */
+	[440] = IMX_PIN_REG(MX35_PAD_LD7, 0x630, 0x1cc, 0, 0x0, 0), /* MX35_PAD_LD7__IPU_DISPB_DAT_7 */
+	[441] = IMX_PIN_REG(MX35_PAD_LD7, 0x630, 0x1cc, 5, 0x8dc, 0), /* MX35_PAD_LD7__GPIO2_7 */
+	[442] = IMX_PIN_REG(MX35_PAD_LD7, 0x630, 0x1cc, 6, 0x0, 0), /* MX35_PAD_LD7__SDMA_SDMA_DEBUG_PC_7 */
+	[443] = IMX_PIN_REG(MX35_PAD_LD8, 0x634, 0x1d0, 0, 0x0, 0), /* MX35_PAD_LD8__IPU_DISPB_DAT_8 */
+	[444] = IMX_PIN_REG(MX35_PAD_LD8, 0x634, 0x1d0, 5, 0x8e0, 0), /* MX35_PAD_LD8__GPIO2_8 */
+	[445] = IMX_PIN_REG(MX35_PAD_LD8, 0x634, 0x1d0, 6, 0x0, 0), /* MX35_PAD_LD8__SDMA_SDMA_DEBUG_PC_8 */
+	[446] = IMX_PIN_REG(MX35_PAD_LD9, 0x638, 0x1d4, 0, 0x0, 0), /* MX35_PAD_LD9__IPU_DISPB_DAT_9 */
+	[447] = IMX_PIN_REG(MX35_PAD_LD9, 0x638, 0x1d4, 5, 0x8e4, 0), /* MX35_PAD_LD9__GPIO2_9 */
+	[448] = IMX_PIN_REG(MX35_PAD_LD9, 0x638, 0x1d4, 6, 0x0, 0), /* MX35_PAD_LD9__SDMA_SDMA_DEBUG_PC_9 */
+	[449] = IMX_PIN_REG(MX35_PAD_LD10, 0x63c, 0x1d8, 0, 0x0, 0), /* MX35_PAD_LD10__IPU_DISPB_DAT_10 */
+	[450] = IMX_PIN_REG(MX35_PAD_LD10, 0x63c, 0x1d8, 5, 0x86c, 0), /* MX35_PAD_LD10__GPIO2_10 */
+	[451] = IMX_PIN_REG(MX35_PAD_LD10, 0x63c, 0x1d8, 6, 0x0, 0), /* MX35_PAD_LD10__SDMA_SDMA_DEBUG_PC_10 */
+	[452] = IMX_PIN_REG(MX35_PAD_LD11, 0x640, 0x1dc, 0, 0x0, 0), /* MX35_PAD_LD11__IPU_DISPB_DAT_11 */
+	[453] = IMX_PIN_REG(MX35_PAD_LD11, 0x640, 0x1dc, 5, 0x870, 0), /* MX35_PAD_LD11__GPIO2_11 */
+	[454] = IMX_PIN_REG(MX35_PAD_LD11, 0x640, 0x1dc, 6, 0x0, 0), /* MX35_PAD_LD11__SDMA_SDMA_DEBUG_PC_11 */
+	[455] = IMX_PIN_REG(MX35_PAD_LD11, 0x640, 0x1dc, 7, 0x0, 0), /* MX35_PAD_LD11__ARM11P_TOP_TRACE_4 */
+	[456] = IMX_PIN_REG(MX35_PAD_LD12, 0x644, 0x1e0, 0, 0x0, 0), /* MX35_PAD_LD12__IPU_DISPB_DAT_12 */
+	[457] = IMX_PIN_REG(MX35_PAD_LD12, 0x644, 0x1e0, 5, 0x874, 0), /* MX35_PAD_LD12__GPIO2_12 */
+	[458] = IMX_PIN_REG(MX35_PAD_LD12, 0x644, 0x1e0, 6, 0x0, 0), /* MX35_PAD_LD12__SDMA_SDMA_DEBUG_PC_12 */
+	[459] = IMX_PIN_REG(MX35_PAD_LD12, 0x644, 0x1e0, 7, 0x0, 0), /* MX35_PAD_LD12__ARM11P_TOP_TRACE_5 */
+	[460] = IMX_PIN_REG(MX35_PAD_LD13, 0x648, 0x1e4, 0, 0x0, 0), /* MX35_PAD_LD13__IPU_DISPB_DAT_13 */
+	[461] = IMX_PIN_REG(MX35_PAD_LD13, 0x648, 0x1e4, 5, 0x878, 0), /* MX35_PAD_LD13__GPIO2_13 */
+	[462] = IMX_PIN_REG(MX35_PAD_LD13, 0x648, 0x1e4, 6, 0x0, 0), /* MX35_PAD_LD13__SDMA_SDMA_DEBUG_PC_13 */
+	[463] = IMX_PIN_REG(MX35_PAD_LD13, 0x648, 0x1e4, 7, 0x0, 0), /* MX35_PAD_LD13__ARM11P_TOP_TRACE_6 */
+	[464] = IMX_PIN_REG(MX35_PAD_LD14, 0x64c, 0x1e8, 0, 0x0, 0), /* MX35_PAD_LD14__IPU_DISPB_DAT_14 */
+	[465] = IMX_PIN_REG(MX35_PAD_LD14, 0x64c, 0x1e8, 5, 0x87c, 0), /* MX35_PAD_LD14__GPIO2_14 */
+	[466] = IMX_PIN_REG(MX35_PAD_LD14, 0x64c, 0x1e8, 6, 0x0, 0), /* MX35_PAD_LD14__SDMA_SDMA_DEBUG_EVENT_CHANNEL_0 */
+	[467] = IMX_PIN_REG(MX35_PAD_LD14, 0x64c, 0x1e8, 7, 0x0, 0), /* MX35_PAD_LD14__ARM11P_TOP_TRACE_7 */
+	[468] = IMX_PIN_REG(MX35_PAD_LD15, 0x650, 0x1ec, 0, 0x0, 0), /* MX35_PAD_LD15__IPU_DISPB_DAT_15 */
+	[469] = IMX_PIN_REG(MX35_PAD_LD15, 0x650, 0x1ec, 5, 0x880, 0), /* MX35_PAD_LD15__GPIO2_15 */
+	[470] = IMX_PIN_REG(MX35_PAD_LD15, 0x650, 0x1ec, 6, 0x0, 0), /* MX35_PAD_LD15__SDMA_SDMA_DEBUG_EVENT_CHANNEL_1 */
+	[471] = IMX_PIN_REG(MX35_PAD_LD15, 0x650, 0x1ec, 7, 0x0, 0), /* MX35_PAD_LD15__ARM11P_TOP_TRACE_8 */
+	[472] = IMX_PIN_REG(MX35_PAD_LD16, 0x654, 0x1f0, 0, 0x0, 0), /* MX35_PAD_LD16__IPU_DISPB_DAT_16 */
+	[473] = IMX_PIN_REG(MX35_PAD_LD16, 0x654, 0x1f0, 2, 0x928, 0), /* MX35_PAD_LD16__IPU_DISPB_D12_VSYNC */
+	[474] = IMX_PIN_REG(MX35_PAD_LD16, 0x654, 0x1f0, 5, 0x884, 0), /* MX35_PAD_LD16__GPIO2_16 */
+	[475] = IMX_PIN_REG(MX35_PAD_LD16, 0x654, 0x1f0, 6, 0x0, 0), /* MX35_PAD_LD16__SDMA_SDMA_DEBUG_EVENT_CHANNEL_2 */
+	[476] = IMX_PIN_REG(MX35_PAD_LD16, 0x654, 0x1f0, 7, 0x0, 0), /* MX35_PAD_LD16__ARM11P_TOP_TRACE_9 */
+	[477] = IMX_PIN_REG(MX35_PAD_LD17, 0x658, 0x1f4, 0, 0x0, 0), /* MX35_PAD_LD17__IPU_DISPB_DAT_17 */
+	[478] = IMX_PIN_REG(MX35_PAD_LD17, 0x658, 0x1f4, 2, 0x0, 0), /* MX35_PAD_LD17__IPU_DISPB_CS2 */
+	[479] = IMX_PIN_REG(MX35_PAD_LD17, 0x658, 0x1f4, 5, 0x888, 0), /* MX35_PAD_LD17__GPIO2_17 */
+	[480] = IMX_PIN_REG(MX35_PAD_LD17, 0x658, 0x1f4, 6, 0x0, 0), /* MX35_PAD_LD17__SDMA_SDMA_DEBUG_EVENT_CHANNEL_3 */
+	[481] = IMX_PIN_REG(MX35_PAD_LD17, 0x658, 0x1f4, 7, 0x0, 0), /* MX35_PAD_LD17__ARM11P_TOP_TRACE_10 */
+	[482] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 0, 0x0, 0), /* MX35_PAD_LD18__IPU_DISPB_DAT_18 */
+	[483] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 1, 0x924, 1), /* MX35_PAD_LD18__IPU_DISPB_D0_VSYNC */
+	[484] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 2, 0x928, 1), /* MX35_PAD_LD18__IPU_DISPB_D12_VSYNC */
+	[485] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 3, 0x818, 0), /* MX35_PAD_LD18__ESDHC3_CMD */
+	[486] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 4, 0x9b0, 0), /* MX35_PAD_LD18__USB_TOP_USBOTG_DATA_3 */
+	[487] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 5, 0x0, 0), /* MX35_PAD_LD18__GPIO3_24 */
+	[488] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 6, 0x0, 0), /* MX35_PAD_LD18__SDMA_SDMA_DEBUG_EVENT_CHANNEL_4 */
+	[489] = IMX_PIN_REG(MX35_PAD_LD18, 0x65c, 0x1f8, 7, 0x0, 0), /* MX35_PAD_LD18__ARM11P_TOP_TRACE_11 */
+	[490] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 0, 0x0, 0), /* MX35_PAD_LD19__IPU_DISPB_DAT_19 */
+	[491] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 1, 0x0, 0), /* MX35_PAD_LD19__IPU_DISPB_BCLK */
+	[492] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 2, 0x0, 0), /* MX35_PAD_LD19__IPU_DISPB_CS1 */
+	[493] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 3, 0x814, 0), /* MX35_PAD_LD19__ESDHC3_CLK */
+	[494] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 4, 0x9c4, 0), /* MX35_PAD_LD19__USB_TOP_USBOTG_DIR */
+	[495] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 5, 0x0, 0), /* MX35_PAD_LD19__GPIO3_25 */
+	[496] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 6, 0x0, 0), /* MX35_PAD_LD19__SDMA_SDMA_DEBUG_EVENT_CHANNEL_5 */
+	[497] = IMX_PIN_REG(MX35_PAD_LD19, 0x660, 0x1fc, 7, 0x0, 0), /* MX35_PAD_LD19__ARM11P_TOP_TRACE_12 */
+	[498] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 0, 0x0, 0), /* MX35_PAD_LD20__IPU_DISPB_DAT_20 */
+	[499] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 1, 0x0, 0), /* MX35_PAD_LD20__IPU_DISPB_CS0 */
+	[500] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 2, 0x0, 0), /* MX35_PAD_LD20__IPU_DISPB_SD_CLK */
+	[501] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 3, 0x81c, 0), /* MX35_PAD_LD20__ESDHC3_DAT0 */
+	[502] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 5, 0x0, 0), /* MX35_PAD_LD20__GPIO3_26 */
+	[503] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 6, 0x0, 0), /* MX35_PAD_LD20__SDMA_SDMA_DEBUG_CORE_STATUS_3 */
+	[504] = IMX_PIN_REG(MX35_PAD_LD20, 0x664, 0x200, 7, 0x0, 0), /* MX35_PAD_LD20__ARM11P_TOP_TRACE_13 */
+	[505] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 0, 0x0, 0), /* MX35_PAD_LD21__IPU_DISPB_DAT_21 */
+	[506] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 1, 0x0, 0), /* MX35_PAD_LD21__IPU_DISPB_PAR_RS */
+	[507] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 2, 0x0, 0), /* MX35_PAD_LD21__IPU_DISPB_SER_RS */
+	[508] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 3, 0x820, 0), /* MX35_PAD_LD21__ESDHC3_DAT1 */
+	[509] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 4, 0x0, 0), /* MX35_PAD_LD21__USB_TOP_USBOTG_STP */
+	[510] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 5, 0x0, 0), /* MX35_PAD_LD21__GPIO3_27 */
+	[511] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 6, 0x0, 0), /* MX35_PAD_LD21__SDMA_DEBUG_EVENT_CHANNEL_SEL */
+	[512] = IMX_PIN_REG(MX35_PAD_LD21, 0x668, 0x204, 7, 0x0, 0), /* MX35_PAD_LD21__ARM11P_TOP_TRACE_14 */
+	[513] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 0, 0x0, 0), /* MX35_PAD_LD22__IPU_DISPB_DAT_22 */
+	[514] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 1, 0x0, 0), /* MX35_PAD_LD22__IPU_DISPB_WR */
+	[515] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 2, 0x92c, 0), /* MX35_PAD_LD22__IPU_DISPB_SD_D_I */
+	[516] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 3, 0x824, 0), /* MX35_PAD_LD22__ESDHC3_DAT2 */
+	[517] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 4, 0x9c8, 0), /* MX35_PAD_LD22__USB_TOP_USBOTG_NXT */
+	[518] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 5, 0x0, 0), /* MX35_PAD_LD22__GPIO3_28 */
+	[519] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 6, 0x0, 0), /* MX35_PAD_LD22__SDMA_DEBUG_BUS_ERROR */
+	[520] = IMX_PIN_REG(MX35_PAD_LD22, 0x66c, 0x208, 7, 0x0, 0), /* MX35_PAD_LD22__ARM11P_TOP_TRCTL */
+	[521] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 0, 0x0, 0), /* MX35_PAD_LD23__IPU_DISPB_DAT_23 */
+	[522] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 1, 0x0, 0), /* MX35_PAD_LD23__IPU_DISPB_RD */
+	[523] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 2, 0x92c, 1), /* MX35_PAD_LD23__IPU_DISPB_SD_D_IO */
+	[524] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 3, 0x828, 0), /* MX35_PAD_LD23__ESDHC3_DAT3 */
+	[525] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 4, 0x9c0, 0), /* MX35_PAD_LD23__USB_TOP_USBOTG_DATA_7 */
+	[526] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 5, 0x0, 0), /* MX35_PAD_LD23__GPIO3_29 */
+	[527] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 6, 0x0, 0), /* MX35_PAD_LD23__SDMA_DEBUG_MATCHED_DMBUS */
+	[528] = IMX_PIN_REG(MX35_PAD_LD23, 0x670, 0x20c, 7, 0x0, 0), /* MX35_PAD_LD23__ARM11P_TOP_TRCLK */
+	[529] = IMX_PIN_REG(MX35_PAD_D3_HSYNC, 0x674, 0x210, 0, 0x0, 0), /* MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC */
+	[530] = IMX_PIN_REG(MX35_PAD_D3_HSYNC, 0x674, 0x210, 2, 0x92c, 2), /* MX35_PAD_D3_HSYNC__IPU_DISPB_SD_D_IO */
+	[531] = IMX_PIN_REG(MX35_PAD_D3_HSYNC, 0x674, 0x210, 5, 0x0, 0), /* MX35_PAD_D3_HSYNC__GPIO3_30 */
+	[532] = IMX_PIN_REG(MX35_PAD_D3_HSYNC, 0x674, 0x210, 6, 0x0, 0), /* MX35_PAD_D3_HSYNC__SDMA_DEBUG_RTBUFFER_WRITE */
+	[533] = IMX_PIN_REG(MX35_PAD_D3_HSYNC, 0x674, 0x210, 7, 0x0, 0), /* MX35_PAD_D3_HSYNC__ARM11P_TOP_TRACE_15 */
+	[534] = IMX_PIN_REG(MX35_PAD_D3_FPSHIFT, 0x678, 0x214, 0, 0x0, 0), /* MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK */
+	[535] = IMX_PIN_REG(MX35_PAD_D3_FPSHIFT, 0x678, 0x214, 2, 0x0, 0), /* MX35_PAD_D3_FPSHIFT__IPU_DISPB_SD_CLK */
+	[536] = IMX_PIN_REG(MX35_PAD_D3_FPSHIFT, 0x678, 0x214, 5, 0x0, 0), /* MX35_PAD_D3_FPSHIFT__GPIO3_31 */
+	[537] = IMX_PIN_REG(MX35_PAD_D3_FPSHIFT, 0x678, 0x214, 6, 0x0, 0), /* MX35_PAD_D3_FPSHIFT__SDMA_SDMA_DEBUG_CORE_STATUS_0 */
+	[538] = IMX_PIN_REG(MX35_PAD_D3_FPSHIFT, 0x678, 0x214, 7, 0x0, 0), /* MX35_PAD_D3_FPSHIFT__ARM11P_TOP_TRACE_16 */
+	[539] = IMX_PIN_REG(MX35_PAD_D3_DRDY, 0x67c, 0x218, 0, 0x0, 0), /* MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY */
+	[540] = IMX_PIN_REG(MX35_PAD_D3_DRDY, 0x67c, 0x218, 2, 0x0, 0), /* MX35_PAD_D3_DRDY__IPU_DISPB_SD_D_O */
+	[541] = IMX_PIN_REG(MX35_PAD_D3_DRDY, 0x67c, 0x218, 5, 0x82c, 2), /* MX35_PAD_D3_DRDY__GPIO1_0 */
+	[542] = IMX_PIN_REG(MX35_PAD_D3_DRDY, 0x67c, 0x218, 6, 0x0, 0), /* MX35_PAD_D3_DRDY__SDMA_SDMA_DEBUG_CORE_STATUS_1 */
+	[543] = IMX_PIN_REG(MX35_PAD_D3_DRDY, 0x67c, 0x218, 7, 0x0, 0), /* MX35_PAD_D3_DRDY__ARM11P_TOP_TRACE_17 */
+	[544] = IMX_PIN_REG(MX35_PAD_CONTRAST, 0x680, 0x21c, 0, 0x0, 0), /* MX35_PAD_CONTRAST__IPU_DISPB_CONTR */
+	[545] = IMX_PIN_REG(MX35_PAD_CONTRAST, 0x680, 0x21c, 5, 0x838, 2), /* MX35_PAD_CONTRAST__GPIO1_1 */
+	[546] = IMX_PIN_REG(MX35_PAD_CONTRAST, 0x680, 0x21c, 6, 0x0, 0), /* MX35_PAD_CONTRAST__SDMA_SDMA_DEBUG_CORE_STATUS_2 */
+	[547] = IMX_PIN_REG(MX35_PAD_CONTRAST, 0x680, 0x21c, 7, 0x0, 0), /* MX35_PAD_CONTRAST__ARM11P_TOP_TRACE_18 */
+	[548] = IMX_PIN_REG(MX35_PAD_D3_VSYNC, 0x684, 0x220, 0, 0x0, 0), /* MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC */
+	[549] = IMX_PIN_REG(MX35_PAD_D3_VSYNC, 0x684, 0x220, 2, 0x0, 0), /* MX35_PAD_D3_VSYNC__IPU_DISPB_CS1 */
+	[550] = IMX_PIN_REG(MX35_PAD_D3_VSYNC, 0x684, 0x220, 5, 0x848, 1), /* MX35_PAD_D3_VSYNC__GPIO1_2 */
+	[551] = IMX_PIN_REG(MX35_PAD_D3_VSYNC, 0x684, 0x220, 6, 0x0, 0), /* MX35_PAD_D3_VSYNC__SDMA_DEBUG_YIELD */
+	[552] = IMX_PIN_REG(MX35_PAD_D3_VSYNC, 0x684, 0x220, 7, 0x0, 0), /* MX35_PAD_D3_VSYNC__ARM11P_TOP_TRACE_19 */
+	[553] = IMX_PIN_REG(MX35_PAD_D3_REV, 0x688, 0x224, 0, 0x0, 0), /* MX35_PAD_D3_REV__IPU_DISPB_D3_REV */
+	[554] = IMX_PIN_REG(MX35_PAD_D3_REV, 0x688, 0x224, 2, 0x0, 0), /* MX35_PAD_D3_REV__IPU_DISPB_SER_RS */
+	[555] = IMX_PIN_REG(MX35_PAD_D3_REV, 0x688, 0x224, 5, 0x84c, 1), /* MX35_PAD_D3_REV__GPIO1_3 */
+	[556] = IMX_PIN_REG(MX35_PAD_D3_REV, 0x688, 0x224, 6, 0x0, 0), /* MX35_PAD_D3_REV__SDMA_DEBUG_BUS_RWB */
+	[557] = IMX_PIN_REG(MX35_PAD_D3_REV, 0x688, 0x224, 7, 0x0, 0), /* MX35_PAD_D3_REV__ARM11P_TOP_TRACE_20 */
+	[558] = IMX_PIN_REG(MX35_PAD_D3_CLS, 0x68c, 0x228, 0, 0x0, 0), /* MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS */
+	[559] = IMX_PIN_REG(MX35_PAD_D3_CLS, 0x68c, 0x228, 2, 0x0, 0), /* MX35_PAD_D3_CLS__IPU_DISPB_CS2 */
+	[560] = IMX_PIN_REG(MX35_PAD_D3_CLS, 0x68c, 0x228, 5, 0x850, 2), /* MX35_PAD_D3_CLS__GPIO1_4 */
+	[561] = IMX_PIN_REG(MX35_PAD_D3_CLS, 0x68c, 0x228, 6, 0x0, 0), /* MX35_PAD_D3_CLS__SDMA_DEBUG_BUS_DEVICE_0 */
+	[562] = IMX_PIN_REG(MX35_PAD_D3_CLS, 0x68c, 0x228, 7, 0x0, 0), /* MX35_PAD_D3_CLS__ARM11P_TOP_TRACE_21 */
+	[563] = IMX_PIN_REG(MX35_PAD_D3_SPL, 0x690, 0x22c, 0, 0x0, 0), /* MX35_PAD_D3_SPL__IPU_DISPB_D3_SPL */
+	[564] = IMX_PIN_REG(MX35_PAD_D3_SPL, 0x690, 0x22c, 2, 0x928, 2), /* MX35_PAD_D3_SPL__IPU_DISPB_D12_VSYNC */
+	[565] = IMX_PIN_REG(MX35_PAD_D3_SPL, 0x690, 0x22c, 5, 0x854, 2), /* MX35_PAD_D3_SPL__GPIO1_5 */
+	[566] = IMX_PIN_REG(MX35_PAD_D3_SPL, 0x690, 0x22c, 6, 0x0, 0), /* MX35_PAD_D3_SPL__SDMA_DEBUG_BUS_DEVICE_1 */
+	[567] = IMX_PIN_REG(MX35_PAD_D3_SPL, 0x690, 0x22c, 7, 0x0, 0), /* MX35_PAD_D3_SPL__ARM11P_TOP_TRACE_22 */
+	[568] = IMX_PIN_REG(MX35_PAD_SD1_CMD, 0x694, 0x230, 0, 0x0, 0), /* MX35_PAD_SD1_CMD__ESDHC1_CMD */
+	[569] = IMX_PIN_REG(MX35_PAD_SD1_CMD, 0x694, 0x230, 1, 0x0, 0), /* MX35_PAD_SD1_CMD__MSHC_SCLK */
+	[570] = IMX_PIN_REG(MX35_PAD_SD1_CMD, 0x694, 0x230, 3, 0x924, 2), /* MX35_PAD_SD1_CMD__IPU_DISPB_D0_VSYNC */
+	[571] = IMX_PIN_REG(MX35_PAD_SD1_CMD, 0x694, 0x230, 4, 0x9b4, 0), /* MX35_PAD_SD1_CMD__USB_TOP_USBOTG_DATA_4 */
+	[572] = IMX_PIN_REG(MX35_PAD_SD1_CMD, 0x694, 0x230, 5, 0x858, 2), /* MX35_PAD_SD1_CMD__GPIO1_6 */
+	[573] = IMX_PIN_REG(MX35_PAD_SD1_CMD, 0x694, 0x230, 7, 0x0, 0), /* MX35_PAD_SD1_CMD__ARM11P_TOP_TRCTL */
+	[574] = IMX_PIN_REG(MX35_PAD_SD1_CLK, 0x698, 0x234, 0, 0x0, 0), /* MX35_PAD_SD1_CLK__ESDHC1_CLK */
+	[575] = IMX_PIN_REG(MX35_PAD_SD1_CLK, 0x698, 0x234, 1, 0x0, 0), /* MX35_PAD_SD1_CLK__MSHC_BS */
+	[576] = IMX_PIN_REG(MX35_PAD_SD1_CLK, 0x698, 0x234, 3, 0x0, 0), /* MX35_PAD_SD1_CLK__IPU_DISPB_BCLK */
+	[577] = IMX_PIN_REG(MX35_PAD_SD1_CLK, 0x698, 0x234, 4, 0x9b8, 0), /* MX35_PAD_SD1_CLK__USB_TOP_USBOTG_DATA_5 */
+	[578] = IMX_PIN_REG(MX35_PAD_SD1_CLK, 0x698, 0x234, 5, 0x85c, 2), /* MX35_PAD_SD1_CLK__GPIO1_7 */
+	[579] = IMX_PIN_REG(MX35_PAD_SD1_CLK, 0x698, 0x234, 7, 0x0, 0), /* MX35_PAD_SD1_CLK__ARM11P_TOP_TRCLK */
+	[580] = IMX_PIN_REG(MX35_PAD_SD1_DATA0, 0x69c, 0x238, 0, 0x0, 0), /* MX35_PAD_SD1_DATA0__ESDHC1_DAT0 */
+	[581] = IMX_PIN_REG(MX35_PAD_SD1_DATA0, 0x69c, 0x238, 1, 0x0, 0), /* MX35_PAD_SD1_DATA0__MSHC_DATA_0 */
+	[582] = IMX_PIN_REG(MX35_PAD_SD1_DATA0, 0x69c, 0x238, 3, 0x0, 0), /* MX35_PAD_SD1_DATA0__IPU_DISPB_CS0 */
+	[583] = IMX_PIN_REG(MX35_PAD_SD1_DATA0, 0x69c, 0x238, 4, 0x9bc, 0), /* MX35_PAD_SD1_DATA0__USB_TOP_USBOTG_DATA_6 */
+	[584] = IMX_PIN_REG(MX35_PAD_SD1_DATA0, 0x69c, 0x238, 5, 0x860, 2), /* MX35_PAD_SD1_DATA0__GPIO1_8 */
+	[585] = IMX_PIN_REG(MX35_PAD_SD1_DATA0, 0x69c, 0x238, 7, 0x0, 0), /* MX35_PAD_SD1_DATA0__ARM11P_TOP_TRACE_23 */
+	[586] = IMX_PIN_REG(MX35_PAD_SD1_DATA1, 0x6a0, 0x23c, 0, 0x0, 0), /* MX35_PAD_SD1_DATA1__ESDHC1_DAT1 */
+	[587] = IMX_PIN_REG(MX35_PAD_SD1_DATA1, 0x6a0, 0x23c, 1, 0x0, 0), /* MX35_PAD_SD1_DATA1__MSHC_DATA_1 */
+	[588] = IMX_PIN_REG(MX35_PAD_SD1_DATA1, 0x6a0, 0x23c, 3, 0x0, 0), /* MX35_PAD_SD1_DATA1__IPU_DISPB_PAR_RS */
+	[589] = IMX_PIN_REG(MX35_PAD_SD1_DATA1, 0x6a0, 0x23c, 4, 0x9a4, 0), /* MX35_PAD_SD1_DATA1__USB_TOP_USBOTG_DATA_0 */
+	[590] = IMX_PIN_REG(MX35_PAD_SD1_DATA1, 0x6a0, 0x23c, 5, 0x864, 1), /* MX35_PAD_SD1_DATA1__GPIO1_9 */
+	[591] = IMX_PIN_REG(MX35_PAD_SD1_DATA1, 0x6a0, 0x23c, 7, 0x0, 0), /* MX35_PAD_SD1_DATA1__ARM11P_TOP_TRACE_24 */
+	[592] = IMX_PIN_REG(MX35_PAD_SD1_DATA2, 0x6a4, 0x240, 0, 0x0, 0), /* MX35_PAD_SD1_DATA2__ESDHC1_DAT2 */
+	[593] = IMX_PIN_REG(MX35_PAD_SD1_DATA2, 0x6a4, 0x240, 1, 0x0, 0), /* MX35_PAD_SD1_DATA2__MSHC_DATA_2 */
+	[594] = IMX_PIN_REG(MX35_PAD_SD1_DATA2, 0x6a4, 0x240, 3, 0x0, 0), /* MX35_PAD_SD1_DATA2__IPU_DISPB_WR */
+	[595] = IMX_PIN_REG(MX35_PAD_SD1_DATA2, 0x6a4, 0x240, 4, 0x9a8, 0), /* MX35_PAD_SD1_DATA2__USB_TOP_USBOTG_DATA_1 */
+	[596] = IMX_PIN_REG(MX35_PAD_SD1_DATA2, 0x6a4, 0x240, 5, 0x830, 1), /* MX35_PAD_SD1_DATA2__GPIO1_10 */
+	[597] = IMX_PIN_REG(MX35_PAD_SD1_DATA2, 0x6a4, 0x240, 7, 0x0, 0), /* MX35_PAD_SD1_DATA2__ARM11P_TOP_TRACE_25 */
+	[598] = IMX_PIN_REG(MX35_PAD_SD1_DATA3, 0x6a8, 0x244, 0, 0x0, 0), /* MX35_PAD_SD1_DATA3__ESDHC1_DAT3 */
+	[599] = IMX_PIN_REG(MX35_PAD_SD1_DATA3, 0x6a8, 0x244, 1, 0x0, 0), /* MX35_PAD_SD1_DATA3__MSHC_DATA_3 */
+	[600] = IMX_PIN_REG(MX35_PAD_SD1_DATA3, 0x6a8, 0x244, 3, 0x0, 0), /* MX35_PAD_SD1_DATA3__IPU_DISPB_RD */
+	[601] = IMX_PIN_REG(MX35_PAD_SD1_DATA3, 0x6a8, 0x244, 4, 0x9ac, 0), /* MX35_PAD_SD1_DATA3__USB_TOP_USBOTG_DATA_2 */
+	[602] = IMX_PIN_REG(MX35_PAD_SD1_DATA3, 0x6a8, 0x244, 5, 0x834, 1), /* MX35_PAD_SD1_DATA3__GPIO1_11 */
+	[603] = IMX_PIN_REG(MX35_PAD_SD1_DATA3, 0x6a8, 0x244, 7, 0x0, 0), /* MX35_PAD_SD1_DATA3__ARM11P_TOP_TRACE_26 */
+	[604] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 0, 0x0, 0), /* MX35_PAD_SD2_CMD__ESDHC2_CMD */
+	[605] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 1, 0x91c, 2), /* MX35_PAD_SD2_CMD__I2C3_SCL */
+	[606] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 2, 0x804, 0), /* MX35_PAD_SD2_CMD__ESDHC1_DAT4 */
+	[607] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 3, 0x938, 2), /* MX35_PAD_SD2_CMD__IPU_CSI_D_2 */
+	[608] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 4, 0x9dc, 0), /* MX35_PAD_SD2_CMD__USB_TOP_USBH2_DATA_4 */
+	[609] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 5, 0x868, 2), /* MX35_PAD_SD2_CMD__GPIO2_0 */
+	[610] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 6, 0x0, 0), /* MX35_PAD_SD2_CMD__SPDIF_SPDIF_OUT1 */
+	[611] = IMX_PIN_REG(MX35_PAD_SD2_CMD, 0x6ac, 0x248, 7, 0x928, 3), /* MX35_PAD_SD2_CMD__IPU_DISPB_D12_VSYNC */
+	[612] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 0, 0x0, 0), /* MX35_PAD_SD2_CLK__ESDHC2_CLK */
+	[613] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 1, 0x920, 2), /* MX35_PAD_SD2_CLK__I2C3_SDA */
+	[614] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 2, 0x808, 0), /* MX35_PAD_SD2_CLK__ESDHC1_DAT5 */
+	[615] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 3, 0x93c, 2), /* MX35_PAD_SD2_CLK__IPU_CSI_D_3 */
+	[616] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 4, 0x9e0, 0), /* MX35_PAD_SD2_CLK__USB_TOP_USBH2_DATA_5 */
+	[617] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 5, 0x894, 1), /* MX35_PAD_SD2_CLK__GPIO2_1 */
+	[618] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 6, 0x998, 2), /* MX35_PAD_SD2_CLK__SPDIF_SPDIF_IN1 */
+	[619] = IMX_PIN_REG(MX35_PAD_SD2_CLK, 0x6b0, 0x24c, 7, 0x0, 0), /* MX35_PAD_SD2_CLK__IPU_DISPB_CS2 */
+	[620] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 0, 0x0, 0), /* MX35_PAD_SD2_DATA0__ESDHC2_DAT0 */
+	[621] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 1, 0x9a0, 1), /* MX35_PAD_SD2_DATA0__UART3_RXD_MUX */
+	[622] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 2, 0x80c, 0), /* MX35_PAD_SD2_DATA0__ESDHC1_DAT6 */
+	[623] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 3, 0x940, 1), /* MX35_PAD_SD2_DATA0__IPU_CSI_D_4 */
+	[624] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 4, 0x9e4, 0), /* MX35_PAD_SD2_DATA0__USB_TOP_USBH2_DATA_6 */
+	[625] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 5, 0x8c0, 1), /* MX35_PAD_SD2_DATA0__GPIO2_2 */
+	[626] = IMX_PIN_REG(MX35_PAD_SD2_DATA0, 0x6b4, 0x250, 6, 0x994, 3), /* MX35_PAD_SD2_DATA0__SPDIF_SPDIF_EXTCLK */
+	[627] = IMX_PIN_REG(MX35_PAD_SD2_DATA1, 0x6b8, 0x254, 0, 0x0, 0), /* MX35_PAD_SD2_DATA1__ESDHC2_DAT1 */
+	[628] = IMX_PIN_REG(MX35_PAD_SD2_DATA1, 0x6b8, 0x254, 1, 0x0, 0), /* MX35_PAD_SD2_DATA1__UART3_TXD_MUX */
+	[629] = IMX_PIN_REG(MX35_PAD_SD2_DATA1, 0x6b8, 0x254, 2, 0x810, 0), /* MX35_PAD_SD2_DATA1__ESDHC1_DAT7 */
+	[630] = IMX_PIN_REG(MX35_PAD_SD2_DATA1, 0x6b8, 0x254, 3, 0x944, 1), /* MX35_PAD_SD2_DATA1__IPU_CSI_D_5 */
+	[631] = IMX_PIN_REG(MX35_PAD_SD2_DATA1, 0x6b8, 0x254, 4, 0x9cc, 0), /* MX35_PAD_SD2_DATA1__USB_TOP_USBH2_DATA_0 */
+	[632] = IMX_PIN_REG(MX35_PAD_SD2_DATA1, 0x6b8, 0x254, 5, 0x8cc, 1), /* MX35_PAD_SD2_DATA1__GPIO2_3 */
+	[633] = IMX_PIN_REG(MX35_PAD_SD2_DATA2, 0x6bc, 0x258, 0, 0x0, 0), /* MX35_PAD_SD2_DATA2__ESDHC2_DAT2 */
+	[634] = IMX_PIN_REG(MX35_PAD_SD2_DATA2, 0x6bc, 0x258, 1, 0x99c, 0), /* MX35_PAD_SD2_DATA2__UART3_RTS */
+	[635] = IMX_PIN_REG(MX35_PAD_SD2_DATA2, 0x6bc, 0x258, 2, 0x7c8, 1), /* MX35_PAD_SD2_DATA2__CAN1_RXCAN */
+	[636] = IMX_PIN_REG(MX35_PAD_SD2_DATA2, 0x6bc, 0x258, 3, 0x948, 1), /* MX35_PAD_SD2_DATA2__IPU_CSI_D_6 */
+	[637] = IMX_PIN_REG(MX35_PAD_SD2_DATA2, 0x6bc, 0x258, 4, 0x9d0, 0), /* MX35_PAD_SD2_DATA2__USB_TOP_USBH2_DATA_1 */
+	[638] = IMX_PIN_REG(MX35_PAD_SD2_DATA2, 0x6bc, 0x258, 5, 0x8d0, 1), /* MX35_PAD_SD2_DATA2__GPIO2_4 */
+	[639] = IMX_PIN_REG(MX35_PAD_SD2_DATA3, 0x6c0, 0x25c, 0, 0x0, 0), /* MX35_PAD_SD2_DATA3__ESDHC2_DAT3 */
+	[640] = IMX_PIN_REG(MX35_PAD_SD2_DATA3, 0x6c0, 0x25c, 1, 0x0, 0), /* MX35_PAD_SD2_DATA3__UART3_CTS */
+	[641] = IMX_PIN_REG(MX35_PAD_SD2_DATA3, 0x6c0, 0x25c, 2, 0x0, 0), /* MX35_PAD_SD2_DATA3__CAN1_TXCAN */
+	[642] = IMX_PIN_REG(MX35_PAD_SD2_DATA3, 0x6c0, 0x25c, 3, 0x94c, 1), /* MX35_PAD_SD2_DATA3__IPU_CSI_D_7 */
+	[643] = IMX_PIN_REG(MX35_PAD_SD2_DATA3, 0x6c0, 0x25c, 4, 0x9d4, 0), /* MX35_PAD_SD2_DATA3__USB_TOP_USBH2_DATA_2 */
+	[644] = IMX_PIN_REG(MX35_PAD_SD2_DATA3, 0x6c0, 0x25c, 5, 0x8d4, 1), /* MX35_PAD_SD2_DATA3__GPIO2_5 */
+	[645] = IMX_PIN_REG(MX35_PAD_ATA_CS0, 0x6c4, 0x260, 0, 0x0, 0), /* MX35_PAD_ATA_CS0__ATA_CS0 */
+	[646] = IMX_PIN_REG(MX35_PAD_ATA_CS0, 0x6c4, 0x260, 1, 0x7dc, 1), /* MX35_PAD_ATA_CS0__CSPI1_SS3 */
+	[647] = IMX_PIN_REG(MX35_PAD_ATA_CS0, 0x6c4, 0x260, 3, 0x0, 0), /* MX35_PAD_ATA_CS0__IPU_DISPB_CS1 */
+	[648] = IMX_PIN_REG(MX35_PAD_ATA_CS0, 0x6c4, 0x260, 5, 0x8d8, 1), /* MX35_PAD_ATA_CS0__GPIO2_6 */
+	[649] = IMX_PIN_REG(MX35_PAD_ATA_CS0, 0x6c4, 0x260, 6, 0x0, 0), /* MX35_PAD_ATA_CS0__IPU_DIAGB_0 */
+	[650] = IMX_PIN_REG(MX35_PAD_ATA_CS0, 0x6c4, 0x260, 7, 0x0, 0), /* MX35_PAD_ATA_CS0__ARM11P_TOP_MAX1_HMASTER_0 */
+	[651] = IMX_PIN_REG(MX35_PAD_ATA_CS1, 0x6c8, 0x264, 0, 0x0, 0), /* MX35_PAD_ATA_CS1__ATA_CS1 */
+	[652] = IMX_PIN_REG(MX35_PAD_ATA_CS1, 0x6c8, 0x264, 3, 0x0, 0), /* MX35_PAD_ATA_CS1__IPU_DISPB_CS2 */
+	[653] = IMX_PIN_REG(MX35_PAD_ATA_CS1, 0x6c8, 0x264, 4, 0x7f0, 1), /* MX35_PAD_ATA_CS1__CSPI2_SS0 */
+	[654] = IMX_PIN_REG(MX35_PAD_ATA_CS1, 0x6c8, 0x264, 5, 0x8dc, 1), /* MX35_PAD_ATA_CS1__GPIO2_7 */
+	[655] = IMX_PIN_REG(MX35_PAD_ATA_CS1, 0x6c8, 0x264, 6, 0x0, 0), /* MX35_PAD_ATA_CS1__IPU_DIAGB_1 */
+	[656] = IMX_PIN_REG(MX35_PAD_ATA_CS1, 0x6c8, 0x264, 7, 0x0, 0), /* MX35_PAD_ATA_CS1__ARM11P_TOP_MAX1_HMASTER_1 */
+	[657] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 0, 0x0, 0), /* MX35_PAD_ATA_DIOR__ATA_DIOR */
+	[658] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 1, 0x81c, 1), /* MX35_PAD_ATA_DIOR__ESDHC3_DAT0 */
+	[659] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 2, 0x9c4, 1), /* MX35_PAD_ATA_DIOR__USB_TOP_USBOTG_DIR */
+	[660] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 3, 0x0, 0), /* MX35_PAD_ATA_DIOR__IPU_DISPB_BE0 */
+	[661] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 4, 0x7f4, 1), /* MX35_PAD_ATA_DIOR__CSPI2_SS1 */
+	[662] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 5, 0x8e0, 1), /* MX35_PAD_ATA_DIOR__GPIO2_8 */
+	[663] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 6, 0x0, 0), /* MX35_PAD_ATA_DIOR__IPU_DIAGB_2 */
+	[664] = IMX_PIN_REG(MX35_PAD_ATA_DIOR, 0x6cc, 0x268, 7, 0x0, 0), /* MX35_PAD_ATA_DIOR__ARM11P_TOP_MAX1_HMASTER_2 */
+	[665] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 0, 0x0, 0), /* MX35_PAD_ATA_DIOW__ATA_DIOW */
+	[666] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 1, 0x820, 1), /* MX35_PAD_ATA_DIOW__ESDHC3_DAT1 */
+	[667] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 2, 0x0, 0), /* MX35_PAD_ATA_DIOW__USB_TOP_USBOTG_STP */
+	[668] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 3, 0x0, 0), /* MX35_PAD_ATA_DIOW__IPU_DISPB_BE1 */
+	[669] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 4, 0x7ec, 2), /* MX35_PAD_ATA_DIOW__CSPI2_MOSI */
+	[670] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 5, 0x8e4, 1), /* MX35_PAD_ATA_DIOW__GPIO2_9 */
+	[671] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 6, 0x0, 0), /* MX35_PAD_ATA_DIOW__IPU_DIAGB_3 */
+	[672] = IMX_PIN_REG(MX35_PAD_ATA_DIOW, 0x6d0, 0x26c, 7, 0x0, 0), /* MX35_PAD_ATA_DIOW__ARM11P_TOP_MAX1_HMASTER_3 */
+	[673] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 0, 0x0, 0), /* MX35_PAD_ATA_DMACK__ATA_DMACK */
+	[674] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 1, 0x824, 1), /* MX35_PAD_ATA_DMACK__ESDHC3_DAT2 */
+	[675] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 2, 0x9c8, 1), /* MX35_PAD_ATA_DMACK__USB_TOP_USBOTG_NXT */
+	[676] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 4, 0x7e8, 2), /* MX35_PAD_ATA_DMACK__CSPI2_MISO */
+	[677] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 5, 0x86c, 1), /* MX35_PAD_ATA_DMACK__GPIO2_10 */
+	[678] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 6, 0x0, 0), /* MX35_PAD_ATA_DMACK__IPU_DIAGB_4 */
+	[679] = IMX_PIN_REG(MX35_PAD_ATA_DMACK, 0x6d4, 0x270, 7, 0x0, 0), /* MX35_PAD_ATA_DMACK__ARM11P_TOP_MAX0_HMASTER_0 */
+	[680] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 0, 0x0, 0), /* MX35_PAD_ATA_RESET_B__ATA_RESET_B */
+	[681] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 1, 0x828, 1), /* MX35_PAD_ATA_RESET_B__ESDHC3_DAT3 */
+	[682] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 2, 0x9a4, 1), /* MX35_PAD_ATA_RESET_B__USB_TOP_USBOTG_DATA_0 */
+	[683] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 3, 0x0, 0), /* MX35_PAD_ATA_RESET_B__IPU_DISPB_SD_D_O */
+	[684] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 4, 0x7e4, 2), /* MX35_PAD_ATA_RESET_B__CSPI2_RDY */
+	[685] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 5, 0x870, 1), /* MX35_PAD_ATA_RESET_B__GPIO2_11 */
+	[686] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 6, 0x0, 0), /* MX35_PAD_ATA_RESET_B__IPU_DIAGB_5 */
+	[687] = IMX_PIN_REG(MX35_PAD_ATA_RESET_B, 0x6d8, 0x274, 7, 0x0, 0), /* MX35_PAD_ATA_RESET_B__ARM11P_TOP_MAX0_HMASTER_1 */
+	[688] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 0, 0x0, 0), /* MX35_PAD_ATA_IORDY__ATA_IORDY */
+	[689] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 1, 0x0, 0), /* MX35_PAD_ATA_IORDY__ESDHC3_DAT4 */
+	[690] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 2, 0x9a8, 1), /* MX35_PAD_ATA_IORDY__USB_TOP_USBOTG_DATA_1 */
+	[691] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 3, 0x92c, 3), /* MX35_PAD_ATA_IORDY__IPU_DISPB_SD_D_IO */
+	[692] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 4, 0x0, 0), /* MX35_PAD_ATA_IORDY__ESDHC2_DAT4 */
+	[693] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 5, 0x874, 1), /* MX35_PAD_ATA_IORDY__GPIO2_12 */
+	[694] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 6, 0x0, 0), /* MX35_PAD_ATA_IORDY__IPU_DIAGB_6 */
+	[695] = IMX_PIN_REG(MX35_PAD_ATA_IORDY, 0x6dc, 0x278, 7, 0x0, 0), /* MX35_PAD_ATA_IORDY__ARM11P_TOP_MAX0_HMASTER_2 */
+	[696] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 0, 0x0, 0), /* MX35_PAD_ATA_DATA0__ATA_DATA_0 */
+	[697] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 1, 0x0, 0), /* MX35_PAD_ATA_DATA0__ESDHC3_DAT5 */
+	[698] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 2, 0x9ac, 1), /* MX35_PAD_ATA_DATA0__USB_TOP_USBOTG_DATA_2 */
+	[699] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 3, 0x928, 4), /* MX35_PAD_ATA_DATA0__IPU_DISPB_D12_VSYNC */
+	[700] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 4, 0x0, 0), /* MX35_PAD_ATA_DATA0__ESDHC2_DAT5 */
+	[701] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 5, 0x878, 1), /* MX35_PAD_ATA_DATA0__GPIO2_13 */
+	[702] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 6, 0x0, 0), /* MX35_PAD_ATA_DATA0__IPU_DIAGB_7 */
+	[703] = IMX_PIN_REG(MX35_PAD_ATA_DATA0, 0x6e0, 0x27c, 7, 0x0, 0), /* MX35_PAD_ATA_DATA0__ARM11P_TOP_MAX0_HMASTER_3 */
+	[704] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 0, 0x0, 0), /* MX35_PAD_ATA_DATA1__ATA_DATA_1 */
+	[705] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 1, 0x0, 0), /* MX35_PAD_ATA_DATA1__ESDHC3_DAT6 */
+	[706] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 2, 0x9b0, 1), /* MX35_PAD_ATA_DATA1__USB_TOP_USBOTG_DATA_3 */
+	[707] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 3, 0x0, 0), /* MX35_PAD_ATA_DATA1__IPU_DISPB_SD_CLK */
+	[708] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 4, 0x0, 0), /* MX35_PAD_ATA_DATA1__ESDHC2_DAT6 */
+	[709] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 5, 0x87c, 1), /* MX35_PAD_ATA_DATA1__GPIO2_14 */
+	[710] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 6, 0x0, 0), /* MX35_PAD_ATA_DATA1__IPU_DIAGB_8 */
+	[711] = IMX_PIN_REG(MX35_PAD_ATA_DATA1, 0x6e4, 0x280, 7, 0x0, 0), /* MX35_PAD_ATA_DATA1__ARM11P_TOP_TRACE_27 */
+	[712] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 0, 0x0, 0), /* MX35_PAD_ATA_DATA2__ATA_DATA_2 */
+	[713] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 1, 0x0, 0), /* MX35_PAD_ATA_DATA2__ESDHC3_DAT7 */
+	[714] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 2, 0x9b4, 1), /* MX35_PAD_ATA_DATA2__USB_TOP_USBOTG_DATA_4 */
+	[715] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 3, 0x0, 0), /* MX35_PAD_ATA_DATA2__IPU_DISPB_SER_RS */
+	[716] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 4, 0x0, 0), /* MX35_PAD_ATA_DATA2__ESDHC2_DAT7 */
+	[717] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 5, 0x880, 1), /* MX35_PAD_ATA_DATA2__GPIO2_15 */
+	[718] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 6, 0x0, 0), /* MX35_PAD_ATA_DATA2__IPU_DIAGB_9 */
+	[719] = IMX_PIN_REG(MX35_PAD_ATA_DATA2, 0x6e8, 0x284, 7, 0x0, 0), /* MX35_PAD_ATA_DATA2__ARM11P_TOP_TRACE_28 */
+	[720] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 0, 0x0, 0), /* MX35_PAD_ATA_DATA3__ATA_DATA_3 */
+	[721] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 1, 0x814, 1), /* MX35_PAD_ATA_DATA3__ESDHC3_CLK */
+	[722] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 2, 0x9b8, 1), /* MX35_PAD_ATA_DATA3__USB_TOP_USBOTG_DATA_5 */
+	[723] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 4, 0x7e0, 2), /* MX35_PAD_ATA_DATA3__CSPI2_SCLK */
+	[724] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 5, 0x884, 1), /* MX35_PAD_ATA_DATA3__GPIO2_16 */
+	[725] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 6, 0x0, 0), /* MX35_PAD_ATA_DATA3__IPU_DIAGB_10 */
+	[726] = IMX_PIN_REG(MX35_PAD_ATA_DATA3, 0x6ec, 0x288, 7, 0x0, 0), /* MX35_PAD_ATA_DATA3__ARM11P_TOP_TRACE_29 */
+	[727] = IMX_PIN_REG(MX35_PAD_ATA_DATA4, 0x6f0, 0x28c, 0, 0x0, 0), /* MX35_PAD_ATA_DATA4__ATA_DATA_4 */
+	[728] = IMX_PIN_REG(MX35_PAD_ATA_DATA4, 0x6f0, 0x28c, 1, 0x818, 1), /* MX35_PAD_ATA_DATA4__ESDHC3_CMD */
+	[729] = IMX_PIN_REG(MX35_PAD_ATA_DATA4, 0x6f0, 0x28c, 2, 0x9bc, 1), /* MX35_PAD_ATA_DATA4__USB_TOP_USBOTG_DATA_6 */
+	[730] = IMX_PIN_REG(MX35_PAD_ATA_DATA4, 0x6f0, 0x28c, 5, 0x888, 1), /* MX35_PAD_ATA_DATA4__GPIO2_17 */
+	[731] = IMX_PIN_REG(MX35_PAD_ATA_DATA4, 0x6f0, 0x28c, 6, 0x0, 0), /* MX35_PAD_ATA_DATA4__IPU_DIAGB_11 */
+	[732] = IMX_PIN_REG(MX35_PAD_ATA_DATA4, 0x6f0, 0x28c, 7, 0x0, 0), /* MX35_PAD_ATA_DATA4__ARM11P_TOP_TRACE_30 */
+	[733] = IMX_PIN_REG(MX35_PAD_ATA_DATA5, 0x6f4, 0x290, 0, 0x0, 0), /* MX35_PAD_ATA_DATA5__ATA_DATA_5 */
+	[734] = IMX_PIN_REG(MX35_PAD_ATA_DATA5, 0x6f4, 0x290, 2, 0x9c0, 1), /* MX35_PAD_ATA_DATA5__USB_TOP_USBOTG_DATA_7 */
+	[735] = IMX_PIN_REG(MX35_PAD_ATA_DATA5, 0x6f4, 0x290, 5, 0x88c, 1), /* MX35_PAD_ATA_DATA5__GPIO2_18 */
+	[736] = IMX_PIN_REG(MX35_PAD_ATA_DATA5, 0x6f4, 0x290, 6, 0x0, 0), /* MX35_PAD_ATA_DATA5__IPU_DIAGB_12 */
+	[737] = IMX_PIN_REG(MX35_PAD_ATA_DATA5, 0x6f4, 0x290, 7, 0x0, 0), /* MX35_PAD_ATA_DATA5__ARM11P_TOP_TRACE_31 */
+	[738] = IMX_PIN_REG(MX35_PAD_ATA_DATA6, 0x6f8, 0x294, 0, 0x0, 0), /* MX35_PAD_ATA_DATA6__ATA_DATA_6 */
+	[739] = IMX_PIN_REG(MX35_PAD_ATA_DATA6, 0x6f8, 0x294, 1, 0x0, 0), /* MX35_PAD_ATA_DATA6__CAN1_TXCAN */
+	[740] = IMX_PIN_REG(MX35_PAD_ATA_DATA6, 0x6f8, 0x294, 2, 0x0, 0), /* MX35_PAD_ATA_DATA6__UART1_DTR */
+	[741] = IMX_PIN_REG(MX35_PAD_ATA_DATA6, 0x6f8, 0x294, 3, 0x7b4, 0), /* MX35_PAD_ATA_DATA6__AUDMUX_AUD6_TXD */
+	[742] = IMX_PIN_REG(MX35_PAD_ATA_DATA6, 0x6f8, 0x294, 5, 0x890, 1), /* MX35_PAD_ATA_DATA6__GPIO2_19 */
+	[743] = IMX_PIN_REG(MX35_PAD_ATA_DATA6, 0x6f8, 0x294, 6, 0x0, 0), /* MX35_PAD_ATA_DATA6__IPU_DIAGB_13 */
+	[744] = IMX_PIN_REG(MX35_PAD_ATA_DATA7, 0x6fc, 0x298, 0, 0x0, 0), /* MX35_PAD_ATA_DATA7__ATA_DATA_7 */
+	[745] = IMX_PIN_REG(MX35_PAD_ATA_DATA7, 0x6fc, 0x298, 1, 0x7c8, 2), /* MX35_PAD_ATA_DATA7__CAN1_RXCAN */
+	[746] = IMX_PIN_REG(MX35_PAD_ATA_DATA7, 0x6fc, 0x298, 2, 0x0, 0), /* MX35_PAD_ATA_DATA7__UART1_DSR */
+	[747] = IMX_PIN_REG(MX35_PAD_ATA_DATA7, 0x6fc, 0x298, 3, 0x7b0, 0), /* MX35_PAD_ATA_DATA7__AUDMUX_AUD6_RXD */
+	[748] = IMX_PIN_REG(MX35_PAD_ATA_DATA7, 0x6fc, 0x298, 5, 0x898, 1), /* MX35_PAD_ATA_DATA7__GPIO2_20 */
+	[749] = IMX_PIN_REG(MX35_PAD_ATA_DATA7, 0x6fc, 0x298, 6, 0x0, 0), /* MX35_PAD_ATA_DATA7__IPU_DIAGB_14 */
+	[750] = IMX_PIN_REG(MX35_PAD_ATA_DATA8, 0x700, 0x29c, 0, 0x0, 0), /* MX35_PAD_ATA_DATA8__ATA_DATA_8 */
+	[751] = IMX_PIN_REG(MX35_PAD_ATA_DATA8, 0x700, 0x29c, 1, 0x99c, 1), /* MX35_PAD_ATA_DATA8__UART3_RTS */
+	[752] = IMX_PIN_REG(MX35_PAD_ATA_DATA8, 0x700, 0x29c, 2, 0x0, 0), /* MX35_PAD_ATA_DATA8__UART1_RI */
+	[753] = IMX_PIN_REG(MX35_PAD_ATA_DATA8, 0x700, 0x29c, 3, 0x7c0, 0), /* MX35_PAD_ATA_DATA8__AUDMUX_AUD6_TXC */
+	[754] = IMX_PIN_REG(MX35_PAD_ATA_DATA8, 0x700, 0x29c, 5, 0x89c, 1), /* MX35_PAD_ATA_DATA8__GPIO2_21 */
+	[755] = IMX_PIN_REG(MX35_PAD_ATA_DATA8, 0x700, 0x29c, 6, 0x0, 0), /* MX35_PAD_ATA_DATA8__IPU_DIAGB_15 */
+	[756] = IMX_PIN_REG(MX35_PAD_ATA_DATA9, 0x704, 0x2a0, 0, 0x0, 0), /* MX35_PAD_ATA_DATA9__ATA_DATA_9 */
+	[757] = IMX_PIN_REG(MX35_PAD_ATA_DATA9, 0x704, 0x2a0, 1, 0x0, 0), /* MX35_PAD_ATA_DATA9__UART3_CTS */
+	[758] = IMX_PIN_REG(MX35_PAD_ATA_DATA9, 0x704, 0x2a0, 2, 0x0, 0), /* MX35_PAD_ATA_DATA9__UART1_DCD */
+	[759] = IMX_PIN_REG(MX35_PAD_ATA_DATA9, 0x704, 0x2a0, 3, 0x7c4, 0), /* MX35_PAD_ATA_DATA9__AUDMUX_AUD6_TXFS */
+	[760] = IMX_PIN_REG(MX35_PAD_ATA_DATA9, 0x704, 0x2a0, 5, 0x8a0, 1), /* MX35_PAD_ATA_DATA9__GPIO2_22 */
+	[761] = IMX_PIN_REG(MX35_PAD_ATA_DATA9, 0x704, 0x2a0, 6, 0x0, 0), /* MX35_PAD_ATA_DATA9__IPU_DIAGB_16 */
+	[762] = IMX_PIN_REG(MX35_PAD_ATA_DATA10, 0x708, 0x2a4, 0, 0x0, 0), /* MX35_PAD_ATA_DATA10__ATA_DATA_10 */
+	[763] = IMX_PIN_REG(MX35_PAD_ATA_DATA10, 0x708, 0x2a4, 1, 0x9a0, 2), /* MX35_PAD_ATA_DATA10__UART3_RXD_MUX */
+	[764] = IMX_PIN_REG(MX35_PAD_ATA_DATA10, 0x708, 0x2a4, 3, 0x7b8, 0), /* MX35_PAD_ATA_DATA10__AUDMUX_AUD6_RXC */
+	[765] = IMX_PIN_REG(MX35_PAD_ATA_DATA10, 0x708, 0x2a4, 5, 0x8a4, 1), /* MX35_PAD_ATA_DATA10__GPIO2_23 */
+	[766] = IMX_PIN_REG(MX35_PAD_ATA_DATA10, 0x708, 0x2a4, 6, 0x0, 0), /* MX35_PAD_ATA_DATA10__IPU_DIAGB_17 */
+	[767] = IMX_PIN_REG(MX35_PAD_ATA_DATA11, 0x70c, 0x2a8, 0, 0x0, 0), /* MX35_PAD_ATA_DATA11__ATA_DATA_11 */
+	[768] = IMX_PIN_REG(MX35_PAD_ATA_DATA11, 0x70c, 0x2a8, 1, 0x0, 0), /* MX35_PAD_ATA_DATA11__UART3_TXD_MUX */
+	[769] = IMX_PIN_REG(MX35_PAD_ATA_DATA11, 0x70c, 0x2a8, 3, 0x7bc, 0), /* MX35_PAD_ATA_DATA11__AUDMUX_AUD6_RXFS */
+	[770] = IMX_PIN_REG(MX35_PAD_ATA_DATA11, 0x70c, 0x2a8, 5, 0x8a8, 1), /* MX35_PAD_ATA_DATA11__GPIO2_24 */
+	[771] = IMX_PIN_REG(MX35_PAD_ATA_DATA11, 0x70c, 0x2a8, 6, 0x0, 0), /* MX35_PAD_ATA_DATA11__IPU_DIAGB_18 */
+	[772] = IMX_PIN_REG(MX35_PAD_ATA_DATA12, 0x710, 0x2ac, 0, 0x0, 0), /* MX35_PAD_ATA_DATA12__ATA_DATA_12 */
+	[773] = IMX_PIN_REG(MX35_PAD_ATA_DATA12, 0x710, 0x2ac, 1, 0x91c, 3), /* MX35_PAD_ATA_DATA12__I2C3_SCL */
+	[774] = IMX_PIN_REG(MX35_PAD_ATA_DATA12, 0x710, 0x2ac, 5, 0x8ac, 1), /* MX35_PAD_ATA_DATA12__GPIO2_25 */
+	[775] = IMX_PIN_REG(MX35_PAD_ATA_DATA12, 0x710, 0x2ac, 6, 0x0, 0), /* MX35_PAD_ATA_DATA12__IPU_DIAGB_19 */
+	[776] = IMX_PIN_REG(MX35_PAD_ATA_DATA13, 0x714, 0x2b0, 0, 0x0, 0), /* MX35_PAD_ATA_DATA13__ATA_DATA_13 */
+	[777] = IMX_PIN_REG(MX35_PAD_ATA_DATA13, 0x714, 0x2b0, 1, 0x920, 3), /* MX35_PAD_ATA_DATA13__I2C3_SDA */
+	[778] = IMX_PIN_REG(MX35_PAD_ATA_DATA13, 0x714, 0x2b0, 5, 0x8b0, 1), /* MX35_PAD_ATA_DATA13__GPIO2_26 */
+	[779] = IMX_PIN_REG(MX35_PAD_ATA_DATA13, 0x714, 0x2b0, 6, 0x0, 0), /* MX35_PAD_ATA_DATA13__IPU_DIAGB_20 */
+	[780] = IMX_PIN_REG(MX35_PAD_ATA_DATA14, 0x718, 0x2b4, 0, 0x0, 0), /* MX35_PAD_ATA_DATA14__ATA_DATA_14 */
+	[781] = IMX_PIN_REG(MX35_PAD_ATA_DATA14, 0x718, 0x2b4, 1, 0x930, 2), /* MX35_PAD_ATA_DATA14__IPU_CSI_D_0 */
+	[782] = IMX_PIN_REG(MX35_PAD_ATA_DATA14, 0x718, 0x2b4, 3, 0x970, 2), /* MX35_PAD_ATA_DATA14__KPP_ROW_0 */
+	[783] = IMX_PIN_REG(MX35_PAD_ATA_DATA14, 0x718, 0x2b4, 5, 0x8b4, 1), /* MX35_PAD_ATA_DATA14__GPIO2_27 */
+	[784] = IMX_PIN_REG(MX35_PAD_ATA_DATA14, 0x718, 0x2b4, 6, 0x0, 0), /* MX35_PAD_ATA_DATA14__IPU_DIAGB_21 */
+	[785] = IMX_PIN_REG(MX35_PAD_ATA_DATA15, 0x71c, 0x2b8, 0, 0x0, 0), /* MX35_PAD_ATA_DATA15__ATA_DATA_15 */
+	[786] = IMX_PIN_REG(MX35_PAD_ATA_DATA15, 0x71c, 0x2b8, 1, 0x934, 2), /* MX35_PAD_ATA_DATA15__IPU_CSI_D_1 */
+	[787] = IMX_PIN_REG(MX35_PAD_ATA_DATA15, 0x71c, 0x2b8, 3, 0x974, 2), /* MX35_PAD_ATA_DATA15__KPP_ROW_1 */
+	[788] = IMX_PIN_REG(MX35_PAD_ATA_DATA15, 0x71c, 0x2b8, 5, 0x8b8, 1), /* MX35_PAD_ATA_DATA15__GPIO2_28 */
+	[789] = IMX_PIN_REG(MX35_PAD_ATA_DATA15, 0x71c, 0x2b8, 6, 0x0, 0), /* MX35_PAD_ATA_DATA15__IPU_DIAGB_22 */
+	[790] = IMX_PIN_REG(MX35_PAD_ATA_INTRQ, 0x720, 0x2bc, 0, 0x0, 0), /* MX35_PAD_ATA_INTRQ__ATA_INTRQ */
+	[791] = IMX_PIN_REG(MX35_PAD_ATA_INTRQ, 0x720, 0x2bc, 1, 0x938, 3), /* MX35_PAD_ATA_INTRQ__IPU_CSI_D_2 */
+	[792] = IMX_PIN_REG(MX35_PAD_ATA_INTRQ, 0x720, 0x2bc, 3, 0x978, 2), /* MX35_PAD_ATA_INTRQ__KPP_ROW_2 */
+	[793] = IMX_PIN_REG(MX35_PAD_ATA_INTRQ, 0x720, 0x2bc, 5, 0x8bc, 1), /* MX35_PAD_ATA_INTRQ__GPIO2_29 */
+	[794] = IMX_PIN_REG(MX35_PAD_ATA_INTRQ, 0x720, 0x2bc, 6, 0x0, 0), /* MX35_PAD_ATA_INTRQ__IPU_DIAGB_23 */
+	[795] = IMX_PIN_REG(MX35_PAD_ATA_BUFF_EN, 0x724, 0x2c0, 0, 0x0, 0), /* MX35_PAD_ATA_BUFF_EN__ATA_BUFFER_EN */
+	[796] = IMX_PIN_REG(MX35_PAD_ATA_BUFF_EN, 0x724, 0x2c0, 1, 0x93c, 3), /* MX35_PAD_ATA_BUFF_EN__IPU_CSI_D_3 */
+	[797] = IMX_PIN_REG(MX35_PAD_ATA_BUFF_EN, 0x724, 0x2c0, 3, 0x97c, 2), /* MX35_PAD_ATA_BUFF_EN__KPP_ROW_3 */
+	[798] = IMX_PIN_REG(MX35_PAD_ATA_BUFF_EN, 0x724, 0x2c0, 5, 0x8c4, 1), /* MX35_PAD_ATA_BUFF_EN__GPIO2_30 */
+	[799] = IMX_PIN_REG(MX35_PAD_ATA_BUFF_EN, 0x724, 0x2c0, 6, 0x0, 0), /* MX35_PAD_ATA_BUFF_EN__IPU_DIAGB_24 */
+	[800] = IMX_PIN_REG(MX35_PAD_ATA_DMARQ, 0x728, 0x2c4, 0, 0x0, 0), /* MX35_PAD_ATA_DMARQ__ATA_DMARQ */
+	[801] = IMX_PIN_REG(MX35_PAD_ATA_DMARQ, 0x728, 0x2c4, 1, 0x940, 2), /* MX35_PAD_ATA_DMARQ__IPU_CSI_D_4 */
+	[802] = IMX_PIN_REG(MX35_PAD_ATA_DMARQ, 0x728, 0x2c4, 3, 0x950, 2), /* MX35_PAD_ATA_DMARQ__KPP_COL_0 */
+	[803] = IMX_PIN_REG(MX35_PAD_ATA_DMARQ, 0x728, 0x2c4, 5, 0x8c8, 1), /* MX35_PAD_ATA_DMARQ__GPIO2_31 */
+	[804] = IMX_PIN_REG(MX35_PAD_ATA_DMARQ, 0x728, 0x2c4, 6, 0x0, 0), /* MX35_PAD_ATA_DMARQ__IPU_DIAGB_25 */
+	[805] = IMX_PIN_REG(MX35_PAD_ATA_DMARQ, 0x728, 0x2c4, 7, 0x0, 0), /* MX35_PAD_ATA_DMARQ__ECT_CTI_TRIG_IN1_4 */
+	[806] = IMX_PIN_REG(MX35_PAD_ATA_DA0, 0x72c, 0x2c8, 0, 0x0, 0), /* MX35_PAD_ATA_DA0__ATA_DA_0 */
+	[807] = IMX_PIN_REG(MX35_PAD_ATA_DA0, 0x72c, 0x2c8, 1, 0x944, 2), /* MX35_PAD_ATA_DA0__IPU_CSI_D_5 */
+	[808] = IMX_PIN_REG(MX35_PAD_ATA_DA0, 0x72c, 0x2c8, 3, 0x954, 2), /* MX35_PAD_ATA_DA0__KPP_COL_1 */
+	[809] = IMX_PIN_REG(MX35_PAD_ATA_DA0, 0x72c, 0x2c8, 5, 0x8e8, 1), /* MX35_PAD_ATA_DA0__GPIO3_0 */
+	[810] = IMX_PIN_REG(MX35_PAD_ATA_DA0, 0x72c, 0x2c8, 6, 0x0, 0), /* MX35_PAD_ATA_DA0__IPU_DIAGB_26 */
+	[811] = IMX_PIN_REG(MX35_PAD_ATA_DA0, 0x72c, 0x2c8, 7, 0x0, 0), /* MX35_PAD_ATA_DA0__ECT_CTI_TRIG_IN1_5 */
+	[812] = IMX_PIN_REG(MX35_PAD_ATA_DA1, 0x730, 0x2cc, 0, 0x0, 0), /* MX35_PAD_ATA_DA1__ATA_DA_1 */
+	[813] = IMX_PIN_REG(MX35_PAD_ATA_DA1, 0x730, 0x2cc, 1, 0x948, 2), /* MX35_PAD_ATA_DA1__IPU_CSI_D_6 */
+	[814] = IMX_PIN_REG(MX35_PAD_ATA_DA1, 0x730, 0x2cc, 3, 0x958, 2), /* MX35_PAD_ATA_DA1__KPP_COL_2 */
+	[815] = IMX_PIN_REG(MX35_PAD_ATA_DA1, 0x730, 0x2cc, 5, 0x0, 0), /* MX35_PAD_ATA_DA1__GPIO3_1 */
+	[816] = IMX_PIN_REG(MX35_PAD_ATA_DA1, 0x730, 0x2cc, 6, 0x0, 0), /* MX35_PAD_ATA_DA1__IPU_DIAGB_27 */
+	[817] = IMX_PIN_REG(MX35_PAD_ATA_DA1, 0x730, 0x2cc, 7, 0x0, 0), /* MX35_PAD_ATA_DA1__ECT_CTI_TRIG_IN1_6 */
+	[818] = IMX_PIN_REG(MX35_PAD_ATA_DA2, 0x734, 0x2d0, 0, 0x0, 0), /* MX35_PAD_ATA_DA2__ATA_DA_2 */
+	[819] = IMX_PIN_REG(MX35_PAD_ATA_DA2, 0x734, 0x2d0, 1, 0x94c, 2), /* MX35_PAD_ATA_DA2__IPU_CSI_D_7 */
+	[820] = IMX_PIN_REG(MX35_PAD_ATA_DA2, 0x734, 0x2d0, 3, 0x95c, 2), /* MX35_PAD_ATA_DA2__KPP_COL_3 */
+	[821] = IMX_PIN_REG(MX35_PAD_ATA_DA2, 0x734, 0x2d0, 5, 0x0, 0), /* MX35_PAD_ATA_DA2__GPIO3_2 */
+	[822] = IMX_PIN_REG(MX35_PAD_ATA_DA2, 0x734, 0x2d0, 6, 0x0, 0), /* MX35_PAD_ATA_DA2__IPU_DIAGB_28 */
+	[823] = IMX_PIN_REG(MX35_PAD_ATA_DA2, 0x734, 0x2d0, 7, 0x0, 0), /* MX35_PAD_ATA_DA2__ECT_CTI_TRIG_IN1_7 */
+	[824] = IMX_PIN_REG(MX35_PAD_MLB_CLK, 0x738, 0x2d4, 0, 0x0, 0), /* MX35_PAD_MLB_CLK__MLB_MLBCLK */
+	[825] = IMX_PIN_REG(MX35_PAD_MLB_CLK, 0x738, 0x2d4, 5, 0x0, 0), /* MX35_PAD_MLB_CLK__GPIO3_3 */
+	[826] = IMX_PIN_REG(MX35_PAD_MLB_DAT, 0x73c, 0x2d8, 0, 0x0, 0), /* MX35_PAD_MLB_DAT__MLB_MLBDAT */
+	[827] = IMX_PIN_REG(MX35_PAD_MLB_DAT, 0x73c, 0x2d8, 5, 0x904, 1), /* MX35_PAD_MLB_DAT__GPIO3_4 */
+	[828] = IMX_PIN_REG(MX35_PAD_MLB_SIG, 0x740, 0x2dc, 0, 0x0, 0), /* MX35_PAD_MLB_SIG__MLB_MLBSIG */
+	[829] = IMX_PIN_REG(MX35_PAD_MLB_SIG, 0x740, 0x2dc, 5, 0x908, 1), /* MX35_PAD_MLB_SIG__GPIO3_5 */
+	[830] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 0, 0x0, 0), /* MX35_PAD_FEC_TX_CLK__FEC_TX_CLK */
+	[831] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 1, 0x804, 1), /* MX35_PAD_FEC_TX_CLK__ESDHC1_DAT4 */
+	[832] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 2, 0x9a0, 3), /* MX35_PAD_FEC_TX_CLK__UART3_RXD_MUX */
+	[833] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 3, 0x9ec, 1), /* MX35_PAD_FEC_TX_CLK__USB_TOP_USBH2_DIR */
+	[834] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 4, 0x7ec, 3), /* MX35_PAD_FEC_TX_CLK__CSPI2_MOSI */
+	[835] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 5, 0x90c, 1), /* MX35_PAD_FEC_TX_CLK__GPIO3_6 */
+	[836] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 6, 0x928, 5), /* MX35_PAD_FEC_TX_CLK__IPU_DISPB_D12_VSYNC */
+	[837] = IMX_PIN_REG(MX35_PAD_FEC_TX_CLK, 0x744, 0x2e0, 7, 0x0, 0), /* MX35_PAD_FEC_TX_CLK__ARM11P_TOP_EVNTBUS_0 */
+	[838] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 0, 0x0, 0), /* MX35_PAD_FEC_RX_CLK__FEC_RX_CLK */
+	[839] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 1, 0x808, 1), /* MX35_PAD_FEC_RX_CLK__ESDHC1_DAT5 */
+	[840] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 2, 0x0, 0), /* MX35_PAD_FEC_RX_CLK__UART3_TXD_MUX */
+	[841] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 3, 0x0, 0), /* MX35_PAD_FEC_RX_CLK__USB_TOP_USBH2_STP */
+	[842] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 4, 0x7e8, 3), /* MX35_PAD_FEC_RX_CLK__CSPI2_MISO */
+	[843] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 5, 0x910, 1), /* MX35_PAD_FEC_RX_CLK__GPIO3_7 */
+	[844] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 6, 0x92c, 4), /* MX35_PAD_FEC_RX_CLK__IPU_DISPB_SD_D_I */
+	[845] = IMX_PIN_REG(MX35_PAD_FEC_RX_CLK, 0x748, 0x2e4, 7, 0x0, 0), /* MX35_PAD_FEC_RX_CLK__ARM11P_TOP_EVNTBUS_1 */
+	[846] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 0, 0x0, 0), /* MX35_PAD_FEC_RX_DV__FEC_RX_DV */
+	[847] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 1, 0x80c, 1), /* MX35_PAD_FEC_RX_DV__ESDHC1_DAT6 */
+	[848] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 2, 0x99c, 2), /* MX35_PAD_FEC_RX_DV__UART3_RTS */
+	[849] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 3, 0x9f0, 1), /* MX35_PAD_FEC_RX_DV__USB_TOP_USBH2_NXT */
+	[850] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 4, 0x7e0, 3), /* MX35_PAD_FEC_RX_DV__CSPI2_SCLK */
+	[851] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 5, 0x914, 1), /* MX35_PAD_FEC_RX_DV__GPIO3_8 */
+	[852] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 6, 0x0, 0), /* MX35_PAD_FEC_RX_DV__IPU_DISPB_SD_CLK */
+	[853] = IMX_PIN_REG(MX35_PAD_FEC_RX_DV, 0x74c, 0x2e8, 7, 0x0, 0), /* MX35_PAD_FEC_RX_DV__ARM11P_TOP_EVNTBUS_2 */
+	[854] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 0, 0x0, 0), /* MX35_PAD_FEC_COL__FEC_COL */
+	[855] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 1, 0x810, 1), /* MX35_PAD_FEC_COL__ESDHC1_DAT7 */
+	[856] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 2, 0x0, 0), /* MX35_PAD_FEC_COL__UART3_CTS */
+	[857] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 3, 0x9cc, 1), /* MX35_PAD_FEC_COL__USB_TOP_USBH2_DATA_0 */
+	[858] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 4, 0x7e4, 3), /* MX35_PAD_FEC_COL__CSPI2_RDY */
+	[859] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 5, 0x918, 1), /* MX35_PAD_FEC_COL__GPIO3_9 */
+	[860] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 6, 0x0, 0), /* MX35_PAD_FEC_COL__IPU_DISPB_SER_RS */
+	[861] = IMX_PIN_REG(MX35_PAD_FEC_COL, 0x750, 0x2ec, 7, 0x0, 0), /* MX35_PAD_FEC_COL__ARM11P_TOP_EVNTBUS_3 */
+	[862] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 0, 0x0, 0), /* MX35_PAD_FEC_RDATA0__FEC_RDATA_0 */
+	[863] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 1, 0x0, 0), /* MX35_PAD_FEC_RDATA0__PWM_PWMO */
+	[864] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 2, 0x0, 0), /* MX35_PAD_FEC_RDATA0__UART3_DTR */
+	[865] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 3, 0x9d0, 1), /* MX35_PAD_FEC_RDATA0__USB_TOP_USBH2_DATA_1 */
+	[866] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 4, 0x7f0, 2), /* MX35_PAD_FEC_RDATA0__CSPI2_SS0 */
+	[867] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 5, 0x8ec, 1), /* MX35_PAD_FEC_RDATA0__GPIO3_10 */
+	[868] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 6, 0x0, 0), /* MX35_PAD_FEC_RDATA0__IPU_DISPB_CS1 */
+	[869] = IMX_PIN_REG(MX35_PAD_FEC_RDATA0, 0x754, 0x2f0, 7, 0x0, 0), /* MX35_PAD_FEC_RDATA0__ARM11P_TOP_EVNTBUS_4 */
+	[870] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 0, 0x0, 0), /* MX35_PAD_FEC_TDATA0__FEC_TDATA_0 */
+	[871] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 1, 0x0, 0), /* MX35_PAD_FEC_TDATA0__SPDIF_SPDIF_OUT1 */
+	[872] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 2, 0x0, 0), /* MX35_PAD_FEC_TDATA0__UART3_DSR */
+	[873] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 3, 0x9d4, 1), /* MX35_PAD_FEC_TDATA0__USB_TOP_USBH2_DATA_2 */
+	[874] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 4, 0x7f4, 2), /* MX35_PAD_FEC_TDATA0__CSPI2_SS1 */
+	[875] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 5, 0x8f0, 1), /* MX35_PAD_FEC_TDATA0__GPIO3_11 */
+	[876] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 6, 0x0, 0), /* MX35_PAD_FEC_TDATA0__IPU_DISPB_CS0 */
+	[877] = IMX_PIN_REG(MX35_PAD_FEC_TDATA0, 0x758, 0x2f4, 7, 0x0, 0), /* MX35_PAD_FEC_TDATA0__ARM11P_TOP_EVNTBUS_5 */
+	[878] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 0, 0x0, 0), /* MX35_PAD_FEC_TX_EN__FEC_TX_EN */
+	[879] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 1, 0x998, 3), /* MX35_PAD_FEC_TX_EN__SPDIF_SPDIF_IN1 */
+	[880] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 2, 0x0, 0), /* MX35_PAD_FEC_TX_EN__UART3_RI */
+	[881] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 3, 0x9d8, 1), /* MX35_PAD_FEC_TX_EN__USB_TOP_USBH2_DATA_3 */
+	[882] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 5, 0x8f4, 1), /* MX35_PAD_FEC_TX_EN__GPIO3_12 */
+	[883] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 6, 0x0, 0), /* MX35_PAD_FEC_TX_EN__IPU_DISPB_PAR_RS */
+	[884] = IMX_PIN_REG(MX35_PAD_FEC_TX_EN, 0x75c, 0x2f8, 7, 0x0, 0), /* MX35_PAD_FEC_TX_EN__ARM11P_TOP_EVNTBUS_6 */
+	[885] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 0, 0x0, 0), /* MX35_PAD_FEC_MDC__FEC_MDC */
+	[886] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 1, 0x0, 0), /* MX35_PAD_FEC_MDC__CAN2_TXCAN */
+	[887] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 2, 0x0, 0), /* MX35_PAD_FEC_MDC__UART3_DCD */
+	[888] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 3, 0x9dc, 1), /* MX35_PAD_FEC_MDC__USB_TOP_USBH2_DATA_4 */
+	[889] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 5, 0x8f8, 1), /* MX35_PAD_FEC_MDC__GPIO3_13 */
+	[890] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 6, 0x0, 0), /* MX35_PAD_FEC_MDC__IPU_DISPB_WR */
+	[891] = IMX_PIN_REG(MX35_PAD_FEC_MDC, 0x760, 0x2fc, 7, 0x0, 0), /* MX35_PAD_FEC_MDC__ARM11P_TOP_EVNTBUS_7 */
+	[892] = IMX_PIN_REG(MX35_PAD_FEC_MDIO, 0x764, 0x300, 0, 0x0, 0), /* MX35_PAD_FEC_MDIO__FEC_MDIO */
+	[893] = IMX_PIN_REG(MX35_PAD_FEC_MDIO, 0x764, 0x300, 1, 0x7cc, 2), /* MX35_PAD_FEC_MDIO__CAN2_RXCAN */
+	[894] = IMX_PIN_REG(MX35_PAD_FEC_MDIO, 0x764, 0x300, 3, 0x9e0, 1), /* MX35_PAD_FEC_MDIO__USB_TOP_USBH2_DATA_5 */
+	[895] = IMX_PIN_REG(MX35_PAD_FEC_MDIO, 0x764, 0x300, 5, 0x8fc, 1), /* MX35_PAD_FEC_MDIO__GPIO3_14 */
+	[896] = IMX_PIN_REG(MX35_PAD_FEC_MDIO, 0x764, 0x300, 6, 0x0, 0), /* MX35_PAD_FEC_MDIO__IPU_DISPB_RD */
+	[897] = IMX_PIN_REG(MX35_PAD_FEC_MDIO, 0x764, 0x300, 7, 0x0, 0), /* MX35_PAD_FEC_MDIO__ARM11P_TOP_EVNTBUS_8 */
+	[898] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 0, 0x0, 0), /* MX35_PAD_FEC_TX_ERR__FEC_TX_ERR */
+	[899] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 1, 0x990, 2), /* MX35_PAD_FEC_TX_ERR__OWIRE_LINE */
+	[900] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 2, 0x994, 4), /* MX35_PAD_FEC_TX_ERR__SPDIF_SPDIF_EXTCLK */
+	[901] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 3, 0x9e4, 1), /* MX35_PAD_FEC_TX_ERR__USB_TOP_USBH2_DATA_6 */
+	[902] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 5, 0x900, 1), /* MX35_PAD_FEC_TX_ERR__GPIO3_15 */
+	[903] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 6, 0x924, 3), /* MX35_PAD_FEC_TX_ERR__IPU_DISPB_D0_VSYNC */
+	[904] = IMX_PIN_REG(MX35_PAD_FEC_TX_ERR, 0x768, 0x304, 7, 0x0, 0), /* MX35_PAD_FEC_TX_ERR__ARM11P_TOP_EVNTBUS_9 */
+	[905] = IMX_PIN_REG(MX35_PAD_FEC_RX_ERR, 0x76c, 0x308, 0, 0x0, 0), /* MX35_PAD_FEC_RX_ERR__FEC_RX_ERR */
+	[906] = IMX_PIN_REG(MX35_PAD_FEC_RX_ERR, 0x76c, 0x308, 1, 0x930, 3), /* MX35_PAD_FEC_RX_ERR__IPU_CSI_D_0 */
+	[907] = IMX_PIN_REG(MX35_PAD_FEC_RX_ERR, 0x76c, 0x308, 3, 0x9e8, 1), /* MX35_PAD_FEC_RX_ERR__USB_TOP_USBH2_DATA_7 */
+	[908] = IMX_PIN_REG(MX35_PAD_FEC_RX_ERR, 0x76c, 0x308, 4, 0x960, 1), /* MX35_PAD_FEC_RX_ERR__KPP_COL_4 */
+	[909] = IMX_PIN_REG(MX35_PAD_FEC_RX_ERR, 0x76c, 0x308, 5, 0x0, 0), /* MX35_PAD_FEC_RX_ERR__GPIO3_16 */
+	[910] = IMX_PIN_REG(MX35_PAD_FEC_RX_ERR, 0x76c, 0x308, 6, 0x92c, 5), /* MX35_PAD_FEC_RX_ERR__IPU_DISPB_SD_D_IO */
+	[911] = IMX_PIN_REG(MX35_PAD_FEC_CRS, 0x770, 0x30c, 0, 0x0, 0), /* MX35_PAD_FEC_CRS__FEC_CRS */
+	[912] = IMX_PIN_REG(MX35_PAD_FEC_CRS, 0x770, 0x30c, 1, 0x934, 3), /* MX35_PAD_FEC_CRS__IPU_CSI_D_1 */
+	[913] = IMX_PIN_REG(MX35_PAD_FEC_CRS, 0x770, 0x30c, 3, 0x0, 0), /* MX35_PAD_FEC_CRS__USB_TOP_USBH2_PWR */
+	[914] = IMX_PIN_REG(MX35_PAD_FEC_CRS, 0x770, 0x30c, 4, 0x964, 1), /* MX35_PAD_FEC_CRS__KPP_COL_5 */
+	[915] = IMX_PIN_REG(MX35_PAD_FEC_CRS, 0x770, 0x30c, 5, 0x0, 0), /* MX35_PAD_FEC_CRS__GPIO3_17 */
+	[916] = IMX_PIN_REG(MX35_PAD_FEC_CRS, 0x770, 0x30c, 6, 0x0, 0), /* MX35_PAD_FEC_CRS__IPU_FLASH_STROBE */
+	[917] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 0, 0x0, 0), /* MX35_PAD_FEC_RDATA1__FEC_RDATA_1 */
+	[918] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 1, 0x938, 4), /* MX35_PAD_FEC_RDATA1__IPU_CSI_D_2 */
+	[919] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 2, 0x0, 0), /* MX35_PAD_FEC_RDATA1__AUDMUX_AUD6_RXC */
+	[920] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 3, 0x9f4, 2), /* MX35_PAD_FEC_RDATA1__USB_TOP_USBH2_OC */
+	[921] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 4, 0x968, 1), /* MX35_PAD_FEC_RDATA1__KPP_COL_6 */
+	[922] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 5, 0x0, 0), /* MX35_PAD_FEC_RDATA1__GPIO3_18 */
+	[923] = IMX_PIN_REG(MX35_PAD_FEC_RDATA1, 0x774, 0x310, 6, 0x0, 0), /* MX35_PAD_FEC_RDATA1__IPU_DISPB_BE0 */
+	[924] = IMX_PIN_REG(MX35_PAD_FEC_TDATA1, 0x778, 0x314, 0, 0x0, 0), /* MX35_PAD_FEC_TDATA1__FEC_TDATA_1 */
+	[925] = IMX_PIN_REG(MX35_PAD_FEC_TDATA1, 0x778, 0x314, 1, 0x93c, 4), /* MX35_PAD_FEC_TDATA1__IPU_CSI_D_3 */
+	[926] = IMX_PIN_REG(MX35_PAD_FEC_TDATA1, 0x778, 0x314, 2, 0x7bc, 1), /* MX35_PAD_FEC_TDATA1__AUDMUX_AUD6_RXFS */
+	[927] = IMX_PIN_REG(MX35_PAD_FEC_TDATA1, 0x778, 0x314, 4, 0x96c, 1), /* MX35_PAD_FEC_TDATA1__KPP_COL_7 */
+	[928] = IMX_PIN_REG(MX35_PAD_FEC_TDATA1, 0x778, 0x314, 5, 0x0, 0), /* MX35_PAD_FEC_TDATA1__GPIO3_19 */
+	[929] = IMX_PIN_REG(MX35_PAD_FEC_TDATA1, 0x778, 0x314, 6, 0x0, 0), /* MX35_PAD_FEC_TDATA1__IPU_DISPB_BE1 */
+	[930] = IMX_PIN_REG(MX35_PAD_FEC_RDATA2, 0x77c, 0x318, 0, 0x0, 0), /* MX35_PAD_FEC_RDATA2__FEC_RDATA_2 */
+	[931] = IMX_PIN_REG(MX35_PAD_FEC_RDATA2, 0x77c, 0x318, 1, 0x940, 3), /* MX35_PAD_FEC_RDATA2__IPU_CSI_D_4 */
+	[932] = IMX_PIN_REG(MX35_PAD_FEC_RDATA2, 0x77c, 0x318, 2, 0x7b4, 1), /* MX35_PAD_FEC_RDATA2__AUDMUX_AUD6_TXD */
+	[933] = IMX_PIN_REG(MX35_PAD_FEC_RDATA2, 0x77c, 0x318, 4, 0x980, 1), /* MX35_PAD_FEC_RDATA2__KPP_ROW_4 */
+	[934] = IMX_PIN_REG(MX35_PAD_FEC_RDATA2, 0x77c, 0x318, 5, 0x0, 0), /* MX35_PAD_FEC_RDATA2__GPIO3_20 */
+	[935] = IMX_PIN_REG(MX35_PAD_FEC_TDATA2, 0x780, 0x31c, 0, 0x0, 0), /* MX35_PAD_FEC_TDATA2__FEC_TDATA_2 */
+	[936] = IMX_PIN_REG(MX35_PAD_FEC_TDATA2, 0x780, 0x31c, 1, 0x944, 3), /* MX35_PAD_FEC_TDATA2__IPU_CSI_D_5 */
+	[937] = IMX_PIN_REG(MX35_PAD_FEC_TDATA2, 0x780, 0x31c, 2, 0x7b0, 1), /* MX35_PAD_FEC_TDATA2__AUDMUX_AUD6_RXD */
+	[938] = IMX_PIN_REG(MX35_PAD_FEC_TDATA2, 0x780, 0x31c, 4, 0x984, 1), /* MX35_PAD_FEC_TDATA2__KPP_ROW_5 */
+	[939] = IMX_PIN_REG(MX35_PAD_FEC_TDATA2, 0x780, 0x31c, 5, 0x0, 0), /* MX35_PAD_FEC_TDATA2__GPIO3_21 */
+	[940] = IMX_PIN_REG(MX35_PAD_FEC_RDATA3, 0x784, 0x320, 0, 0x0, 0), /* MX35_PAD_FEC_RDATA3__FEC_RDATA_3 */
+	[941] = IMX_PIN_REG(MX35_PAD_FEC_RDATA3, 0x784, 0x320, 1, 0x948, 3), /* MX35_PAD_FEC_RDATA3__IPU_CSI_D_6 */
+	[942] = IMX_PIN_REG(MX35_PAD_FEC_RDATA3, 0x784, 0x320, 2, 0x7c0, 1), /* MX35_PAD_FEC_RDATA3__AUDMUX_AUD6_TXC */
+	[943] = IMX_PIN_REG(MX35_PAD_FEC_RDATA3, 0x784, 0x320, 4, 0x988, 1), /* MX35_PAD_FEC_RDATA3__KPP_ROW_6 */
+	[944] = IMX_PIN_REG(MX35_PAD_FEC_RDATA3, 0x784, 0x320, 6, 0x0, 0), /* MX35_PAD_FEC_RDATA3__GPIO3_22 */
+	[945] = IMX_PIN_REG(MX35_PAD_FEC_TDATA3, 0x788, 0x324, 0, 0x0, 0), /* MX35_PAD_FEC_TDATA3__FEC_TDATA_3 */
+	[946] = IMX_PIN_REG(MX35_PAD_FEC_TDATA3, 0x788, 0x324, 1, 0x94c, 3), /* MX35_PAD_FEC_TDATA3__IPU_CSI_D_7 */
+	[947] = IMX_PIN_REG(MX35_PAD_FEC_TDATA3, 0x788, 0x324, 2, 0x7c4, 1), /* MX35_PAD_FEC_TDATA3__AUDMUX_AUD6_TXFS */
+	[948] = IMX_PIN_REG(MX35_PAD_FEC_TDATA3, 0x788, 0x324, 4, 0x98c, 1), /* MX35_PAD_FEC_TDATA3__KPP_ROW_7 */
+	[949] = IMX_PIN_REG(MX35_PAD_FEC_TDATA3, 0x788, 0x324, 5, 0x0, 0), /* MX35_PAD_FEC_TDATA3__GPIO3_23 */
+	[950] = IMX_PIN_REG(MX35_PAD_EXT_ARMCLK, 0x78c, 0x0, 0, 0x0, 0), /* MX35_PAD_EXT_ARMCLK__CCM_EXT_ARMCLK */
+	[951] = IMX_PIN_REG(MX35_PAD_TEST_MODE, 0x790, 0x0, 0, 0x0, 0), /* MX35_PAD_TEST_MODE__TCU_TEST_MODE */
+};
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc imx35_pinctrl_pads[] = {
+	IMX_PINCTRL_PIN(MX35_PAD_CAPTURE),
+	IMX_PINCTRL_PIN(MX35_PAD_COMPARE),
+	IMX_PINCTRL_PIN(MX35_PAD_WDOG_RST),
+	IMX_PINCTRL_PIN(MX35_PAD_GPIO1_0),
+	IMX_PINCTRL_PIN(MX35_PAD_GPIO1_1),
+	IMX_PINCTRL_PIN(MX35_PAD_GPIO2_0),
+	IMX_PINCTRL_PIN(MX35_PAD_GPIO3_0),
+	IMX_PINCTRL_PIN(MX35_PAD_RESET_IN_B),
+	IMX_PINCTRL_PIN(MX35_PAD_POR_B),
+	IMX_PINCTRL_PIN(MX35_PAD_CLKO),
+	IMX_PINCTRL_PIN(MX35_PAD_BOOT_MODE0),
+	IMX_PINCTRL_PIN(MX35_PAD_BOOT_MODE1),
+	IMX_PINCTRL_PIN(MX35_PAD_CLK_MODE0),
+	IMX_PINCTRL_PIN(MX35_PAD_CLK_MODE1),
+	IMX_PINCTRL_PIN(MX35_PAD_POWER_FAIL),
+	IMX_PINCTRL_PIN(MX35_PAD_VSTBY),
+	IMX_PINCTRL_PIN(MX35_PAD_A0),
+	IMX_PINCTRL_PIN(MX35_PAD_A1),
+	IMX_PINCTRL_PIN(MX35_PAD_A2),
+	IMX_PINCTRL_PIN(MX35_PAD_A3),
+	IMX_PINCTRL_PIN(MX35_PAD_A4),
+	IMX_PINCTRL_PIN(MX35_PAD_A5),
+	IMX_PINCTRL_PIN(MX35_PAD_A6),
+	IMX_PINCTRL_PIN(MX35_PAD_A7),
+	IMX_PINCTRL_PIN(MX35_PAD_A8),
+	IMX_PINCTRL_PIN(MX35_PAD_A9),
+	IMX_PINCTRL_PIN(MX35_PAD_A10),
+	IMX_PINCTRL_PIN(MX35_PAD_MA10),
+	IMX_PINCTRL_PIN(MX35_PAD_A11),
+	IMX_PINCTRL_PIN(MX35_PAD_A12),
+	IMX_PINCTRL_PIN(MX35_PAD_A13),
+	IMX_PINCTRL_PIN(MX35_PAD_A14),
+	IMX_PINCTRL_PIN(MX35_PAD_A15),
+	IMX_PINCTRL_PIN(MX35_PAD_A16),
+	IMX_PINCTRL_PIN(MX35_PAD_A17),
+	IMX_PINCTRL_PIN(MX35_PAD_A18),
+	IMX_PINCTRL_PIN(MX35_PAD_A19),
+	IMX_PINCTRL_PIN(MX35_PAD_A20),
+	IMX_PINCTRL_PIN(MX35_PAD_A21),
+	IMX_PINCTRL_PIN(MX35_PAD_A22),
+	IMX_PINCTRL_PIN(MX35_PAD_A23),
+	IMX_PINCTRL_PIN(MX35_PAD_A24),
+	IMX_PINCTRL_PIN(MX35_PAD_A25),
+	IMX_PINCTRL_PIN(MX35_PAD_SDBA1),
+	IMX_PINCTRL_PIN(MX35_PAD_SDBA0),
+	IMX_PINCTRL_PIN(MX35_PAD_SD0),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2),
+	IMX_PINCTRL_PIN(MX35_PAD_SD3),
+	IMX_PINCTRL_PIN(MX35_PAD_SD4),
+	IMX_PINCTRL_PIN(MX35_PAD_SD5),
+	IMX_PINCTRL_PIN(MX35_PAD_SD6),
+	IMX_PINCTRL_PIN(MX35_PAD_SD7),
+	IMX_PINCTRL_PIN(MX35_PAD_SD8),
+	IMX_PINCTRL_PIN(MX35_PAD_SD9),
+	IMX_PINCTRL_PIN(MX35_PAD_SD10),
+	IMX_PINCTRL_PIN(MX35_PAD_SD11),
+	IMX_PINCTRL_PIN(MX35_PAD_SD12),
+	IMX_PINCTRL_PIN(MX35_PAD_SD13),
+	IMX_PINCTRL_PIN(MX35_PAD_SD14),
+	IMX_PINCTRL_PIN(MX35_PAD_SD15),
+	IMX_PINCTRL_PIN(MX35_PAD_SD16),
+	IMX_PINCTRL_PIN(MX35_PAD_SD17),
+	IMX_PINCTRL_PIN(MX35_PAD_SD18),
+	IMX_PINCTRL_PIN(MX35_PAD_SD19),
+	IMX_PINCTRL_PIN(MX35_PAD_SD20),
+	IMX_PINCTRL_PIN(MX35_PAD_SD21),
+	IMX_PINCTRL_PIN(MX35_PAD_SD22),
+	IMX_PINCTRL_PIN(MX35_PAD_SD23),
+	IMX_PINCTRL_PIN(MX35_PAD_SD24),
+	IMX_PINCTRL_PIN(MX35_PAD_SD25),
+	IMX_PINCTRL_PIN(MX35_PAD_SD26),
+	IMX_PINCTRL_PIN(MX35_PAD_SD27),
+	IMX_PINCTRL_PIN(MX35_PAD_SD28),
+	IMX_PINCTRL_PIN(MX35_PAD_SD29),
+	IMX_PINCTRL_PIN(MX35_PAD_SD30),
+	IMX_PINCTRL_PIN(MX35_PAD_SD31),
+	IMX_PINCTRL_PIN(MX35_PAD_DQM0),
+	IMX_PINCTRL_PIN(MX35_PAD_DQM1),
+	IMX_PINCTRL_PIN(MX35_PAD_DQM2),
+	IMX_PINCTRL_PIN(MX35_PAD_DQM3),
+	IMX_PINCTRL_PIN(MX35_PAD_EB0),
+	IMX_PINCTRL_PIN(MX35_PAD_EB1),
+	IMX_PINCTRL_PIN(MX35_PAD_OE),
+	IMX_PINCTRL_PIN(MX35_PAD_CS0),
+	IMX_PINCTRL_PIN(MX35_PAD_CS1),
+	IMX_PINCTRL_PIN(MX35_PAD_CS2),
+	IMX_PINCTRL_PIN(MX35_PAD_CS3),
+	IMX_PINCTRL_PIN(MX35_PAD_CS4),
+	IMX_PINCTRL_PIN(MX35_PAD_CS5),
+	IMX_PINCTRL_PIN(MX35_PAD_NF_CE0),
+	IMX_PINCTRL_PIN(MX35_PAD_ECB),
+	IMX_PINCTRL_PIN(MX35_PAD_LBA),
+	IMX_PINCTRL_PIN(MX35_PAD_BCLK),
+	IMX_PINCTRL_PIN(MX35_PAD_RW),
+	IMX_PINCTRL_PIN(MX35_PAD_RAS),
+	IMX_PINCTRL_PIN(MX35_PAD_CAS),
+	IMX_PINCTRL_PIN(MX35_PAD_SDWE),
+	IMX_PINCTRL_PIN(MX35_PAD_SDCKE0),
+	IMX_PINCTRL_PIN(MX35_PAD_SDCKE1),
+	IMX_PINCTRL_PIN(MX35_PAD_SDCLK),
+	IMX_PINCTRL_PIN(MX35_PAD_SDQS0),
+	IMX_PINCTRL_PIN(MX35_PAD_SDQS1),
+	IMX_PINCTRL_PIN(MX35_PAD_SDQS2),
+	IMX_PINCTRL_PIN(MX35_PAD_SDQS3),
+	IMX_PINCTRL_PIN(MX35_PAD_NFWE_B),
+	IMX_PINCTRL_PIN(MX35_PAD_NFRE_B),
+	IMX_PINCTRL_PIN(MX35_PAD_NFALE),
+	IMX_PINCTRL_PIN(MX35_PAD_NFCLE),
+	IMX_PINCTRL_PIN(MX35_PAD_NFWP_B),
+	IMX_PINCTRL_PIN(MX35_PAD_NFRB),
+	IMX_PINCTRL_PIN(MX35_PAD_D15),
+	IMX_PINCTRL_PIN(MX35_PAD_D14),
+	IMX_PINCTRL_PIN(MX35_PAD_D13),
+	IMX_PINCTRL_PIN(MX35_PAD_D12),
+	IMX_PINCTRL_PIN(MX35_PAD_D11),
+	IMX_PINCTRL_PIN(MX35_PAD_D10),
+	IMX_PINCTRL_PIN(MX35_PAD_D9),
+	IMX_PINCTRL_PIN(MX35_PAD_D8),
+	IMX_PINCTRL_PIN(MX35_PAD_D7),
+	IMX_PINCTRL_PIN(MX35_PAD_D6),
+	IMX_PINCTRL_PIN(MX35_PAD_D5),
+	IMX_PINCTRL_PIN(MX35_PAD_D4),
+	IMX_PINCTRL_PIN(MX35_PAD_D3),
+	IMX_PINCTRL_PIN(MX35_PAD_D2),
+	IMX_PINCTRL_PIN(MX35_PAD_D1),
+	IMX_PINCTRL_PIN(MX35_PAD_D0),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D8),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D9),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D10),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D11),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D12),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D13),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D14),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_D15),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_MCLK),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_VSYNC),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_HSYNC),
+	IMX_PINCTRL_PIN(MX35_PAD_CSI_PIXCLK),
+	IMX_PINCTRL_PIN(MX35_PAD_I2C1_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_I2C1_DAT),
+	IMX_PINCTRL_PIN(MX35_PAD_I2C2_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_I2C2_DAT),
+	IMX_PINCTRL_PIN(MX35_PAD_STXD4),
+	IMX_PINCTRL_PIN(MX35_PAD_SRXD4),
+	IMX_PINCTRL_PIN(MX35_PAD_SCK4),
+	IMX_PINCTRL_PIN(MX35_PAD_STXFS4),
+	IMX_PINCTRL_PIN(MX35_PAD_STXD5),
+	IMX_PINCTRL_PIN(MX35_PAD_SRXD5),
+	IMX_PINCTRL_PIN(MX35_PAD_SCK5),
+	IMX_PINCTRL_PIN(MX35_PAD_STXFS5),
+	IMX_PINCTRL_PIN(MX35_PAD_SCKR),
+	IMX_PINCTRL_PIN(MX35_PAD_FSR),
+	IMX_PINCTRL_PIN(MX35_PAD_HCKR),
+	IMX_PINCTRL_PIN(MX35_PAD_SCKT),
+	IMX_PINCTRL_PIN(MX35_PAD_FST),
+	IMX_PINCTRL_PIN(MX35_PAD_HCKT),
+	IMX_PINCTRL_PIN(MX35_PAD_TX5_RX0),
+	IMX_PINCTRL_PIN(MX35_PAD_TX4_RX1),
+	IMX_PINCTRL_PIN(MX35_PAD_TX3_RX2),
+	IMX_PINCTRL_PIN(MX35_PAD_TX2_RX3),
+	IMX_PINCTRL_PIN(MX35_PAD_TX1),
+	IMX_PINCTRL_PIN(MX35_PAD_TX0),
+	IMX_PINCTRL_PIN(MX35_PAD_CSPI1_MOSI),
+	IMX_PINCTRL_PIN(MX35_PAD_CSPI1_MISO),
+	IMX_PINCTRL_PIN(MX35_PAD_CSPI1_SS0),
+	IMX_PINCTRL_PIN(MX35_PAD_CSPI1_SS1),
+	IMX_PINCTRL_PIN(MX35_PAD_CSPI1_SCLK),
+	IMX_PINCTRL_PIN(MX35_PAD_CSPI1_SPI_RDY),
+	IMX_PINCTRL_PIN(MX35_PAD_RXD1),
+	IMX_PINCTRL_PIN(MX35_PAD_TXD1),
+	IMX_PINCTRL_PIN(MX35_PAD_RTS1),
+	IMX_PINCTRL_PIN(MX35_PAD_CTS1),
+	IMX_PINCTRL_PIN(MX35_PAD_RXD2),
+	IMX_PINCTRL_PIN(MX35_PAD_TXD2),
+	IMX_PINCTRL_PIN(MX35_PAD_RTS2),
+	IMX_PINCTRL_PIN(MX35_PAD_CTS2),
+	IMX_PINCTRL_PIN(MX35_PAD_RTCK),
+	IMX_PINCTRL_PIN(MX35_PAD_TCK),
+	IMX_PINCTRL_PIN(MX35_PAD_TMS),
+	IMX_PINCTRL_PIN(MX35_PAD_TDI),
+	IMX_PINCTRL_PIN(MX35_PAD_TDO),
+	IMX_PINCTRL_PIN(MX35_PAD_TRSTB),
+	IMX_PINCTRL_PIN(MX35_PAD_DE_B),
+	IMX_PINCTRL_PIN(MX35_PAD_SJC_MOD),
+	IMX_PINCTRL_PIN(MX35_PAD_USBOTG_PWR),
+	IMX_PINCTRL_PIN(MX35_PAD_USBOTG_OC),
+	IMX_PINCTRL_PIN(MX35_PAD_LD0),
+	IMX_PINCTRL_PIN(MX35_PAD_LD1),
+	IMX_PINCTRL_PIN(MX35_PAD_LD2),
+	IMX_PINCTRL_PIN(MX35_PAD_LD3),
+	IMX_PINCTRL_PIN(MX35_PAD_LD4),
+	IMX_PINCTRL_PIN(MX35_PAD_LD5),
+	IMX_PINCTRL_PIN(MX35_PAD_LD6),
+	IMX_PINCTRL_PIN(MX35_PAD_LD7),
+	IMX_PINCTRL_PIN(MX35_PAD_LD8),
+	IMX_PINCTRL_PIN(MX35_PAD_LD9),
+	IMX_PINCTRL_PIN(MX35_PAD_LD10),
+	IMX_PINCTRL_PIN(MX35_PAD_LD11),
+	IMX_PINCTRL_PIN(MX35_PAD_LD12),
+	IMX_PINCTRL_PIN(MX35_PAD_LD13),
+	IMX_PINCTRL_PIN(MX35_PAD_LD14),
+	IMX_PINCTRL_PIN(MX35_PAD_LD15),
+	IMX_PINCTRL_PIN(MX35_PAD_LD16),
+	IMX_PINCTRL_PIN(MX35_PAD_LD17),
+	IMX_PINCTRL_PIN(MX35_PAD_LD18),
+	IMX_PINCTRL_PIN(MX35_PAD_LD19),
+	IMX_PINCTRL_PIN(MX35_PAD_LD20),
+	IMX_PINCTRL_PIN(MX35_PAD_LD21),
+	IMX_PINCTRL_PIN(MX35_PAD_LD22),
+	IMX_PINCTRL_PIN(MX35_PAD_LD23),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_HSYNC),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_FPSHIFT),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_DRDY),
+	IMX_PINCTRL_PIN(MX35_PAD_CONTRAST),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_VSYNC),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_REV),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_CLS),
+	IMX_PINCTRL_PIN(MX35_PAD_D3_SPL),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1_CMD),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1_DATA0),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1_DATA1),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1_DATA2),
+	IMX_PINCTRL_PIN(MX35_PAD_SD1_DATA3),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2_CMD),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2_DATA0),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2_DATA1),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2_DATA2),
+	IMX_PINCTRL_PIN(MX35_PAD_SD2_DATA3),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_CS0),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_CS1),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DIOR),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DIOW),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DMACK),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_RESET_B),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_IORDY),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA0),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA1),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA2),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA3),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA4),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA5),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA6),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA7),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA8),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA9),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA10),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA11),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA12),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA13),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA14),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DATA15),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_INTRQ),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_BUFF_EN),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DMARQ),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DA0),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DA1),
+	IMX_PINCTRL_PIN(MX35_PAD_ATA_DA2),
+	IMX_PINCTRL_PIN(MX35_PAD_MLB_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_MLB_DAT),
+	IMX_PINCTRL_PIN(MX35_PAD_MLB_SIG),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TX_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RX_CLK),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RX_DV),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_COL),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RDATA0),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TDATA0),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TX_EN),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_MDC),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_MDIO),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TX_ERR),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RX_ERR),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_CRS),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RDATA1),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TDATA1),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RDATA2),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TDATA2),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_RDATA3),
+	IMX_PINCTRL_PIN(MX35_PAD_FEC_TDATA3),
+	IMX_PINCTRL_PIN(MX35_PAD_EXT_ARMCLK),
+	IMX_PINCTRL_PIN(MX35_PAD_TEST_MODE),
+};
+
+static struct imx_pinctrl_soc_info imx35_pinctrl_info = {
+	.pins = imx35_pinctrl_pads,
+	.npins = ARRAY_SIZE(imx35_pinctrl_pads),
+	.pin_regs = imx35_pin_regs,
+	.npin_regs = ARRAY_SIZE(imx35_pin_regs),
+};
+
+static struct of_device_id imx35_pinctrl_of_match[] __devinitdata = {
+	{ .compatible = "fsl,imx35-iomuxc", },
+	{ /* sentinel */ }
+};
+
+static int __devinit imx35_pinctrl_probe(struct platform_device *pdev)
+{
+	return imx_pinctrl_probe(pdev, &imx35_pinctrl_info);
+}
+
+static struct platform_driver imx35_pinctrl_driver = {
+	.driver = {
+		.name = "imx35-pinctrl",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(imx35_pinctrl_of_match),
+	},
+	.probe = imx35_pinctrl_probe,
+	.remove = __devexit_p(imx_pinctrl_remove),
+};
+
+static int __init imx35_pinctrl_init(void)
+{
+	return platform_driver_register(&imx35_pinctrl_driver);
+}
+arch_initcall(imx35_pinctrl_init);
+
+static void __exit imx35_pinctrl_exit(void)
+{
+	platform_driver_unregister(&imx35_pinctrl_driver);
+}
+module_exit(imx35_pinctrl_exit);
+MODULE_AUTHOR("Dong Aisheng <dong.aisheng@linaro.org>");
+MODULE_DESCRIPTION("Freescale IMX35 pinctrl driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/pinctrl-imx51.c b/drivers/pinctrl/pinctrl-imx51.c
index 689b3c88dd2..fb846896677 100644
--- a/drivers/pinctrl/pinctrl-imx51.c
+++ b/drivers/pinctrl/pinctrl-imx51.c
@@ -23,251 +23,251 @@
 #include "pinctrl-imx.h"
 
 enum imx51_pads {
-	MX51_PAD_EIM_D16 = 1,
-	MX51_PAD_EIM_D17 = 2,
-	MX51_PAD_EIM_D18 = 3,
-	MX51_PAD_EIM_D19 = 4,
-	MX51_PAD_EIM_D20 = 5,
-	MX51_PAD_EIM_D21 = 6,
-	MX51_PAD_EIM_D22 = 7,
-	MX51_PAD_EIM_D23 = 8,
-	MX51_PAD_EIM_D24 = 9,
-	MX51_PAD_EIM_D25 = 10,
-	MX51_PAD_EIM_D26 = 11,
-	MX51_PAD_EIM_D27 = 12,
-	MX51_PAD_EIM_D28 = 13,
-	MX51_PAD_EIM_D29 = 14,
-	MX51_PAD_EIM_D30 = 15,
-	MX51_PAD_EIM_D31 = 16,
-	MX51_PAD_EIM_A16 = 17,
-	MX51_PAD_EIM_A17 = 18,
-	MX51_PAD_EIM_A18 = 19,
-	MX51_PAD_EIM_A19 = 20,
-	MX51_PAD_EIM_A20 = 21,
-	MX51_PAD_EIM_A21 = 22,
-	MX51_PAD_EIM_A22 = 23,
-	MX51_PAD_EIM_A23 = 24,
-	MX51_PAD_EIM_A24 = 25,
-	MX51_PAD_EIM_A25 = 26,
-	MX51_PAD_EIM_A26 = 27,
-	MX51_PAD_EIM_A27 = 28,
-	MX51_PAD_EIM_EB0 = 29,
-	MX51_PAD_EIM_EB1 = 30,
-	MX51_PAD_EIM_EB2 = 31,
-	MX51_PAD_EIM_EB3 = 32,
-	MX51_PAD_EIM_OE = 33,
-	MX51_PAD_EIM_CS0 = 34,
-	MX51_PAD_EIM_CS1 = 35,
-	MX51_PAD_EIM_CS2 = 36,
-	MX51_PAD_EIM_CS3 = 37,
-	MX51_PAD_EIM_CS4 = 38,
-	MX51_PAD_EIM_CS5 = 39,
-	MX51_PAD_EIM_DTACK = 40,
-	MX51_PAD_EIM_LBA = 41,
-	MX51_PAD_EIM_CRE = 42,
-	MX51_PAD_DRAM_CS1 = 43,
-	MX51_PAD_NANDF_WE_B = 44,
-	MX51_PAD_NANDF_RE_B = 45,
-	MX51_PAD_NANDF_ALE = 46,
-	MX51_PAD_NANDF_CLE = 47,
-	MX51_PAD_NANDF_WP_B = 48,
-	MX51_PAD_NANDF_RB0 = 49,
-	MX51_PAD_NANDF_RB1 = 50,
-	MX51_PAD_NANDF_RB2 = 51,
-	MX51_PAD_NANDF_RB3 = 52,
-	MX51_PAD_GPIO_NAND = 53,
-	MX51_PAD_NANDF_CS0 = 54,
-	MX51_PAD_NANDF_CS1 = 55,
-	MX51_PAD_NANDF_CS2 = 56,
-	MX51_PAD_NANDF_CS3 = 57,
-	MX51_PAD_NANDF_CS4 = 58,
-	MX51_PAD_NANDF_CS5 = 59,
-	MX51_PAD_NANDF_CS6 = 60,
-	MX51_PAD_NANDF_CS7 = 61,
-	MX51_PAD_NANDF_RDY_INT = 62,
-	MX51_PAD_NANDF_D15 = 63,
-	MX51_PAD_NANDF_D14 = 64,
-	MX51_PAD_NANDF_D13 = 65,
-	MX51_PAD_NANDF_D12 = 66,
-	MX51_PAD_NANDF_D11 = 67,
-	MX51_PAD_NANDF_D10 = 68,
-	MX51_PAD_NANDF_D9 = 69,
-	MX51_PAD_NANDF_D8 = 70,
-	MX51_PAD_NANDF_D7 = 71,
-	MX51_PAD_NANDF_D6 = 72,
-	MX51_PAD_NANDF_D5 = 73,
-	MX51_PAD_NANDF_D4 = 74,
-	MX51_PAD_NANDF_D3 = 75,
-	MX51_PAD_NANDF_D2 = 76,
-	MX51_PAD_NANDF_D1 = 77,
-	MX51_PAD_NANDF_D0 = 78,
-	MX51_PAD_CSI1_D8 = 79,
-	MX51_PAD_CSI1_D9 = 80,
-	MX51_PAD_CSI1_D10 = 81,
-	MX51_PAD_CSI1_D11 = 82,
-	MX51_PAD_CSI1_D12 = 83,
-	MX51_PAD_CSI1_D13 = 84,
-	MX51_PAD_CSI1_D14 = 85,
-	MX51_PAD_CSI1_D15 = 86,
-	MX51_PAD_CSI1_D16 = 87,
-	MX51_PAD_CSI1_D17 = 88,
-	MX51_PAD_CSI1_D18 = 89,
-	MX51_PAD_CSI1_D19 = 90,
-	MX51_PAD_CSI1_VSYNC = 91,
-	MX51_PAD_CSI1_HSYNC = 92,
-	MX51_PAD_CSI1_PIXCLK = 93,
-	MX51_PAD_CSI1_MCLK = 94,
-	MX51_PAD_CSI2_D12 = 95,
-	MX51_PAD_CSI2_D13 = 96,
-	MX51_PAD_CSI2_D14 = 97,
-	MX51_PAD_CSI2_D15 = 98,
-	MX51_PAD_CSI2_D16 = 99,
-	MX51_PAD_CSI2_D17 = 100,
-	MX51_PAD_CSI2_D18 = 101,
-	MX51_PAD_CSI2_D19 = 102,
-	MX51_PAD_CSI2_VSYNC = 103,
-	MX51_PAD_CSI2_HSYNC = 104,
-	MX51_PAD_CSI2_PIXCLK = 105,
-	MX51_PAD_I2C1_CLK = 106,
-	MX51_PAD_I2C1_DAT = 107,
-	MX51_PAD_AUD3_BB_TXD = 108,
-	MX51_PAD_AUD3_BB_RXD = 109,
-	MX51_PAD_AUD3_BB_CK = 110,
-	MX51_PAD_AUD3_BB_FS = 111,
-	MX51_PAD_CSPI1_MOSI = 112,
-	MX51_PAD_CSPI1_MISO = 113,
-	MX51_PAD_CSPI1_SS0 = 114,
-	MX51_PAD_CSPI1_SS1 = 115,
-	MX51_PAD_CSPI1_RDY = 116,
-	MX51_PAD_CSPI1_SCLK = 117,
-	MX51_PAD_UART1_RXD = 118,
-	MX51_PAD_UART1_TXD = 119,
-	MX51_PAD_UART1_RTS = 120,
-	MX51_PAD_UART1_CTS = 121,
-	MX51_PAD_UART2_RXD = 122,
-	MX51_PAD_UART2_TXD = 123,
-	MX51_PAD_UART3_RXD = 124,
-	MX51_PAD_UART3_TXD = 125,
-	MX51_PAD_OWIRE_LINE = 126,
-	MX51_PAD_KEY_ROW0 = 127,
-	MX51_PAD_KEY_ROW1 = 128,
-	MX51_PAD_KEY_ROW2 = 129,
-	MX51_PAD_KEY_ROW3 = 130,
-	MX51_PAD_KEY_COL0 = 131,
-	MX51_PAD_KEY_COL1 = 132,
-	MX51_PAD_KEY_COL2 = 133,
-	MX51_PAD_KEY_COL3 = 134,
-	MX51_PAD_KEY_COL4 = 135,
-	MX51_PAD_KEY_COL5 = 136,
-	MX51_PAD_USBH1_CLK = 137,
-	MX51_PAD_USBH1_DIR = 138,
-	MX51_PAD_USBH1_STP = 139,
-	MX51_PAD_USBH1_NXT = 140,
-	MX51_PAD_USBH1_DATA0 = 141,
-	MX51_PAD_USBH1_DATA1 = 142,
-	MX51_PAD_USBH1_DATA2 = 143,
-	MX51_PAD_USBH1_DATA3 = 144,
-	MX51_PAD_USBH1_DATA4 = 145,
-	MX51_PAD_USBH1_DATA5 = 146,
-	MX51_PAD_USBH1_DATA6 = 147,
-	MX51_PAD_USBH1_DATA7 = 148,
-	MX51_PAD_DI1_PIN11 = 149,
-	MX51_PAD_DI1_PIN12 = 150,
-	MX51_PAD_DI1_PIN13 = 151,
-	MX51_PAD_DI1_D0_CS = 152,
-	MX51_PAD_DI1_D1_CS = 153,
-	MX51_PAD_DISPB2_SER_DIN = 154,
-	MX51_PAD_DISPB2_SER_DIO = 155,
-	MX51_PAD_DISPB2_SER_CLK = 156,
-	MX51_PAD_DISPB2_SER_RS = 157,
-	MX51_PAD_DISP1_DAT0 = 158,
-	MX51_PAD_DISP1_DAT1 = 159,
-	MX51_PAD_DISP1_DAT2 = 160,
-	MX51_PAD_DISP1_DAT3 = 161,
-	MX51_PAD_DISP1_DAT4 = 162,
-	MX51_PAD_DISP1_DAT5 = 163,
-	MX51_PAD_DISP1_DAT6 = 164,
-	MX51_PAD_DISP1_DAT7 = 165,
-	MX51_PAD_DISP1_DAT8 = 166,
-	MX51_PAD_DISP1_DAT9 = 167,
-	MX51_PAD_DISP1_DAT10 = 168,
-	MX51_PAD_DISP1_DAT11 = 169,
-	MX51_PAD_DISP1_DAT12 = 170,
-	MX51_PAD_DISP1_DAT13 = 171,
-	MX51_PAD_DISP1_DAT14 = 172,
-	MX51_PAD_DISP1_DAT15 = 173,
-	MX51_PAD_DISP1_DAT16 = 174,
-	MX51_PAD_DISP1_DAT17 = 175,
-	MX51_PAD_DISP1_DAT18 = 176,
-	MX51_PAD_DISP1_DAT19 = 177,
-	MX51_PAD_DISP1_DAT20 = 178,
-	MX51_PAD_DISP1_DAT21 = 179,
-	MX51_PAD_DISP1_DAT22 = 180,
-	MX51_PAD_DISP1_DAT23 = 181,
-	MX51_PAD_DI1_PIN3 = 182,
-	MX51_PAD_DI1_PIN2 = 183,
-	MX51_PAD_DI_GP2 = 184,
-	MX51_PAD_DI_GP3 = 185,
-	MX51_PAD_DI2_PIN4 = 186,
-	MX51_PAD_DI2_PIN2 = 187,
-	MX51_PAD_DI2_PIN3 = 188,
-	MX51_PAD_DI2_DISP_CLK = 189,
-	MX51_PAD_DI_GP4 = 190,
-	MX51_PAD_DISP2_DAT0 = 191,
-	MX51_PAD_DISP2_DAT1 = 192,
-	MX51_PAD_DISP2_DAT2 = 193,
-	MX51_PAD_DISP2_DAT3 = 194,
-	MX51_PAD_DISP2_DAT4 = 195,
-	MX51_PAD_DISP2_DAT5 = 196,
-	MX51_PAD_DISP2_DAT6 = 197,
-	MX51_PAD_DISP2_DAT7 = 198,
-	MX51_PAD_DISP2_DAT8 = 199,
-	MX51_PAD_DISP2_DAT9 = 200,
-	MX51_PAD_DISP2_DAT10 = 201,
-	MX51_PAD_DISP2_DAT11 = 202,
-	MX51_PAD_DISP2_DAT12 = 203,
-	MX51_PAD_DISP2_DAT13 = 204,
-	MX51_PAD_DISP2_DAT14 = 205,
-	MX51_PAD_DISP2_DAT15 = 206,
-	MX51_PAD_SD1_CMD = 207,
-	MX51_PAD_SD1_CLK = 208,
-	MX51_PAD_SD1_DATA0 = 209,
-	MX51_PAD_EIM_DA0 = 210,
-	MX51_PAD_EIM_DA1 = 211,
-	MX51_PAD_EIM_DA2 = 212,
-	MX51_PAD_EIM_DA3 = 213,
-	MX51_PAD_SD1_DATA1 = 214,
-	MX51_PAD_EIM_DA4 = 215,
-	MX51_PAD_EIM_DA5 = 216,
-	MX51_PAD_EIM_DA6 = 217,
-	MX51_PAD_EIM_DA7 = 218,
-	MX51_PAD_SD1_DATA2 = 219,
-	MX51_PAD_EIM_DA10 = 220,
-	MX51_PAD_EIM_DA11 = 221,
-	MX51_PAD_EIM_DA8 = 222,
-	MX51_PAD_EIM_DA9 = 223,
-	MX51_PAD_SD1_DATA3 = 224,
-	MX51_PAD_GPIO1_0 = 225,
-	MX51_PAD_GPIO1_1 = 226,
-	MX51_PAD_EIM_DA12 = 227,
-	MX51_PAD_EIM_DA13 = 228,
-	MX51_PAD_EIM_DA14 = 229,
-	MX51_PAD_EIM_DA15 = 230,
-	MX51_PAD_SD2_CMD = 231,
-	MX51_PAD_SD2_CLK = 232,
-	MX51_PAD_SD2_DATA0 = 233,
-	MX51_PAD_SD2_DATA1 = 234,
-	MX51_PAD_SD2_DATA2 = 235,
-	MX51_PAD_SD2_DATA3 = 236,
-	MX51_PAD_GPIO1_2 = 237,
-	MX51_PAD_GPIO1_3 = 238,
-	MX51_PAD_PMIC_INT_REQ = 239,
-	MX51_PAD_GPIO1_4 = 240,
-	MX51_PAD_GPIO1_5 = 241,
-	MX51_PAD_GPIO1_6 = 242,
-	MX51_PAD_GPIO1_7 = 243,
-	MX51_PAD_GPIO1_8 = 244,
-	MX51_PAD_GPIO1_9 = 245,
+	MX51_PAD_EIM_D16 = 0,
+	MX51_PAD_EIM_D17 = 1,
+	MX51_PAD_EIM_D18 = 2,
+	MX51_PAD_EIM_D19 = 3,
+	MX51_PAD_EIM_D20 = 4,
+	MX51_PAD_EIM_D21 = 5,
+	MX51_PAD_EIM_D22 = 6,
+	MX51_PAD_EIM_D23 = 7,
+	MX51_PAD_EIM_D24 = 8,
+	MX51_PAD_EIM_D25 = 9,
+	MX51_PAD_EIM_D26 = 10,
+	MX51_PAD_EIM_D27 = 11,
+	MX51_PAD_EIM_D28 = 12,
+	MX51_PAD_EIM_D29 = 13,
+	MX51_PAD_EIM_D30 = 14,
+	MX51_PAD_EIM_D31 = 15,
+	MX51_PAD_EIM_A16 = 16,
+	MX51_PAD_EIM_A17 = 17,
+	MX51_PAD_EIM_A18 = 18,
+	MX51_PAD_EIM_A19 = 19,
+	MX51_PAD_EIM_A20 = 20,
+	MX51_PAD_EIM_A21 = 21,
+	MX51_PAD_EIM_A22 = 22,
+	MX51_PAD_EIM_A23 = 23,
+	MX51_PAD_EIM_A24 = 24,
+	MX51_PAD_EIM_A25 = 25,
+	MX51_PAD_EIM_A26 = 26,
+	MX51_PAD_EIM_A27 = 27,
+	MX51_PAD_EIM_EB0 = 28,
+	MX51_PAD_EIM_EB1 = 29,
+	MX51_PAD_EIM_EB2 = 30,
+	MX51_PAD_EIM_EB3 = 31,
+	MX51_PAD_EIM_OE = 32,
+	MX51_PAD_EIM_CS0 = 33,
+	MX51_PAD_EIM_CS1 = 34,
+	MX51_PAD_EIM_CS2 = 35,
+	MX51_PAD_EIM_CS3 = 36,
+	MX51_PAD_EIM_CS4 = 37,
+	MX51_PAD_EIM_CS5 = 38,
+	MX51_PAD_EIM_DTACK = 39,
+	MX51_PAD_EIM_LBA = 40,
+	MX51_PAD_EIM_CRE = 41,
+	MX51_PAD_DRAM_CS1 = 42,
+	MX51_PAD_NANDF_WE_B = 43,
+	MX51_PAD_NANDF_RE_B = 44,
+	MX51_PAD_NANDF_ALE = 45,
+	MX51_PAD_NANDF_CLE = 46,
+	MX51_PAD_NANDF_WP_B = 47,
+	MX51_PAD_NANDF_RB0 = 48,
+	MX51_PAD_NANDF_RB1 = 49,
+	MX51_PAD_NANDF_RB2 = 50,
+	MX51_PAD_NANDF_RB3 = 51,
+	MX51_PAD_GPIO_NAND = 52,
+	MX51_PAD_NANDF_CS0 = 53,
+	MX51_PAD_NANDF_CS1 = 54,
+	MX51_PAD_NANDF_CS2 = 55,
+	MX51_PAD_NANDF_CS3 = 56,
+	MX51_PAD_NANDF_CS4 = 57,
+	MX51_PAD_NANDF_CS5 = 58,
+	MX51_PAD_NANDF_CS6 = 59,
+	MX51_PAD_NANDF_CS7 = 60,
+	MX51_PAD_NANDF_RDY_INT = 61,
+	MX51_PAD_NANDF_D15 = 62,
+	MX51_PAD_NANDF_D14 = 63,
+	MX51_PAD_NANDF_D13 = 64,
+	MX51_PAD_NANDF_D12 = 65,
+	MX51_PAD_NANDF_D11 = 66,
+	MX51_PAD_NANDF_D10 = 67,
+	MX51_PAD_NANDF_D9 = 68,
+	MX51_PAD_NANDF_D8 = 69,
+	MX51_PAD_NANDF_D7 = 70,
+	MX51_PAD_NANDF_D6 = 71,
+	MX51_PAD_NANDF_D5 = 72,
+	MX51_PAD_NANDF_D4 = 73,
+	MX51_PAD_NANDF_D3 = 74,
+	MX51_PAD_NANDF_D2 = 75,
+	MX51_PAD_NANDF_D1 = 76,
+	MX51_PAD_NANDF_D0 = 77,
+	MX51_PAD_CSI1_D8 = 78,
+	MX51_PAD_CSI1_D9 = 79,
+	MX51_PAD_CSI1_D10 = 80,
+	MX51_PAD_CSI1_D11 = 81,
+	MX51_PAD_CSI1_D12 = 82,
+	MX51_PAD_CSI1_D13 = 83,
+	MX51_PAD_CSI1_D14 = 84,
+	MX51_PAD_CSI1_D15 = 85,
+	MX51_PAD_CSI1_D16 = 86,
+	MX51_PAD_CSI1_D17 = 87,
+	MX51_PAD_CSI1_D18 = 88,
+	MX51_PAD_CSI1_D19 = 89,
+	MX51_PAD_CSI1_VSYNC = 90,
+	MX51_PAD_CSI1_HSYNC = 91,
+	MX51_PAD_CSI1_PIXCLK = 92,
+	MX51_PAD_CSI1_MCLK = 93,
+	MX51_PAD_CSI2_D12 = 94,
+	MX51_PAD_CSI2_D13 = 95,
+	MX51_PAD_CSI2_D14 = 96,
+	MX51_PAD_CSI2_D15 = 97,
+	MX51_PAD_CSI2_D16 = 98,
+	MX51_PAD_CSI2_D17 = 99,
+	MX51_PAD_CSI2_D18 = 100,
+	MX51_PAD_CSI2_D19 = 101,
+	MX51_PAD_CSI2_VSYNC = 102,
+	MX51_PAD_CSI2_HSYNC = 103,
+	MX51_PAD_CSI2_PIXCLK = 104,
+	MX51_PAD_I2C1_CLK = 105,
+	MX51_PAD_I2C1_DAT = 106,
+	MX51_PAD_AUD3_BB_TXD = 107,
+	MX51_PAD_AUD3_BB_RXD = 108,
+	MX51_PAD_AUD3_BB_CK = 109,
+	MX51_PAD_AUD3_BB_FS = 110,
+	MX51_PAD_CSPI1_MOSI = 111,
+	MX51_PAD_CSPI1_MISO = 112,
+	MX51_PAD_CSPI1_SS0 = 113,
+	MX51_PAD_CSPI1_SS1 = 114,
+	MX51_PAD_CSPI1_RDY = 115,
+	MX51_PAD_CSPI1_SCLK = 116,
+	MX51_PAD_UART1_RXD = 117,
+	MX51_PAD_UART1_TXD = 118,
+	MX51_PAD_UART1_RTS = 119,
+	MX51_PAD_UART1_CTS = 120,
+	MX51_PAD_UART2_RXD = 121,
+	MX51_PAD_UART2_TXD = 122,
+	MX51_PAD_UART3_RXD = 123,
+	MX51_PAD_UART3_TXD = 124,
+	MX51_PAD_OWIRE_LINE = 125,
+	MX51_PAD_KEY_ROW0 = 126,
+	MX51_PAD_KEY_ROW1 = 127,
+	MX51_PAD_KEY_ROW2 = 128,
+	MX51_PAD_KEY_ROW3 = 129,
+	MX51_PAD_KEY_COL0 = 130,
+	MX51_PAD_KEY_COL1 = 131,
+	MX51_PAD_KEY_COL2 = 132,
+	MX51_PAD_KEY_COL3 = 133,
+	MX51_PAD_KEY_COL4 = 134,
+	MX51_PAD_KEY_COL5 = 135,
+	MX51_PAD_USBH1_CLK = 136,
+	MX51_PAD_USBH1_DIR = 137,
+	MX51_PAD_USBH1_STP = 138,
+	MX51_PAD_USBH1_NXT = 139,
+	MX51_PAD_USBH1_DATA0 = 140,
+	MX51_PAD_USBH1_DATA1 = 141,
+	MX51_PAD_USBH1_DATA2 = 142,
+	MX51_PAD_USBH1_DATA3 = 143,
+	MX51_PAD_USBH1_DATA4 = 144,
+	MX51_PAD_USBH1_DATA5 = 145,
+	MX51_PAD_USBH1_DATA6 = 146,
+	MX51_PAD_USBH1_DATA7 = 147,
+	MX51_PAD_DI1_PIN11 = 148,
+	MX51_PAD_DI1_PIN12 = 149,
+	MX51_PAD_DI1_PIN13 = 150,
+	MX51_PAD_DI1_D0_CS = 151,
+	MX51_PAD_DI1_D1_CS = 152,
+	MX51_PAD_DISPB2_SER_DIN = 153,
+	MX51_PAD_DISPB2_SER_DIO = 154,
+	MX51_PAD_DISPB2_SER_CLK = 155,
+	MX51_PAD_DISPB2_SER_RS = 156,
+	MX51_PAD_DISP1_DAT0 = 157,
+	MX51_PAD_DISP1_DAT1 = 158,
+	MX51_PAD_DISP1_DAT2 = 159,
+	MX51_PAD_DISP1_DAT3 = 160,
+	MX51_PAD_DISP1_DAT4 = 161,
+	MX51_PAD_DISP1_DAT5 = 162,
+	MX51_PAD_DISP1_DAT6 = 163,
+	MX51_PAD_DISP1_DAT7 = 164,
+	MX51_PAD_DISP1_DAT8 = 165,
+	MX51_PAD_DISP1_DAT9 = 166,
+	MX51_PAD_DISP1_DAT10 = 167,
+	MX51_PAD_DISP1_DAT11 = 168,
+	MX51_PAD_DISP1_DAT12 = 169,
+	MX51_PAD_DISP1_DAT13 = 170,
+	MX51_PAD_DISP1_DAT14 = 171,
+	MX51_PAD_DISP1_DAT15 = 172,
+	MX51_PAD_DISP1_DAT16 = 173,
+	MX51_PAD_DISP1_DAT17 = 174,
+	MX51_PAD_DISP1_DAT18 = 175,
+	MX51_PAD_DISP1_DAT19 = 176,
+	MX51_PAD_DISP1_DAT20 = 177,
+	MX51_PAD_DISP1_DAT21 = 178,
+	MX51_PAD_DISP1_DAT22 = 179,
+	MX51_PAD_DISP1_DAT23 = 180,
+	MX51_PAD_DI1_PIN3 = 181,
+	MX51_PAD_DI1_PIN2 = 182,
+	MX51_PAD_DI_GP2 = 183,
+	MX51_PAD_DI_GP3 = 184,
+	MX51_PAD_DI2_PIN4 = 185,
+	MX51_PAD_DI2_PIN2 = 186,
+	MX51_PAD_DI2_PIN3 = 187,
+	MX51_PAD_DI2_DISP_CLK = 188,
+	MX51_PAD_DI_GP4 = 189,
+	MX51_PAD_DISP2_DAT0 = 190,
+	MX51_PAD_DISP2_DAT1 = 191,
+	MX51_PAD_DISP2_DAT2 = 192,
+	MX51_PAD_DISP2_DAT3 = 193,
+	MX51_PAD_DISP2_DAT4 = 194,
+	MX51_PAD_DISP2_DAT5 = 195,
+	MX51_PAD_DISP2_DAT6 = 196,
+	MX51_PAD_DISP2_DAT7 = 197,
+	MX51_PAD_DISP2_DAT8 = 198,
+	MX51_PAD_DISP2_DAT9 = 199,
+	MX51_PAD_DISP2_DAT10 = 200,
+	MX51_PAD_DISP2_DAT11 = 201,
+	MX51_PAD_DISP2_DAT12 = 202,
+	MX51_PAD_DISP2_DAT13 = 203,
+	MX51_PAD_DISP2_DAT14 = 204,
+	MX51_PAD_DISP2_DAT15 = 205,
+	MX51_PAD_SD1_CMD = 206,
+	MX51_PAD_SD1_CLK = 207,
+	MX51_PAD_SD1_DATA0 = 208,
+	MX51_PAD_EIM_DA0 = 209,
+	MX51_PAD_EIM_DA1 = 210,
+	MX51_PAD_EIM_DA2 = 211,
+	MX51_PAD_EIM_DA3 = 212,
+	MX51_PAD_SD1_DATA1 = 213,
+	MX51_PAD_EIM_DA4 = 214,
+	MX51_PAD_EIM_DA5 = 215,
+	MX51_PAD_EIM_DA6 = 216,
+	MX51_PAD_EIM_DA7 = 217,
+	MX51_PAD_SD1_DATA2 = 218,
+	MX51_PAD_EIM_DA10 = 219,
+	MX51_PAD_EIM_DA11 = 220,
+	MX51_PAD_EIM_DA8 = 221,
+	MX51_PAD_EIM_DA9 = 222,
+	MX51_PAD_SD1_DATA3 = 223,
+	MX51_PAD_GPIO1_0 = 224,
+	MX51_PAD_GPIO1_1 = 225,
+	MX51_PAD_EIM_DA12 = 226,
+	MX51_PAD_EIM_DA13 = 227,
+	MX51_PAD_EIM_DA14 = 228,
+	MX51_PAD_EIM_DA15 = 229,
+	MX51_PAD_SD2_CMD = 230,
+	MX51_PAD_SD2_CLK = 231,
+	MX51_PAD_SD2_DATA0 = 232,
+	MX51_PAD_SD2_DATA1 = 233,
+	MX51_PAD_SD2_DATA2 = 234,
+	MX51_PAD_SD2_DATA3 = 235,
+	MX51_PAD_GPIO1_2 = 236,
+	MX51_PAD_GPIO1_3 = 237,
+	MX51_PAD_PMIC_INT_REQ = 238,
+	MX51_PAD_GPIO1_4 = 239,
+	MX51_PAD_GPIO1_5 = 240,
+	MX51_PAD_GPIO1_6 = 241,
+	MX51_PAD_GPIO1_7 = 242,
+	MX51_PAD_GPIO1_8 = 243,
+	MX51_PAD_GPIO1_9 = 244,
 };
 
 /* imx51 register maps */
@@ -974,7 +974,7 @@ static struct imx_pin_reg imx51_pin_regs[] = {
 	IMX_PIN_REG(MX51_PAD_EIM_DA13, NO_PAD, 0x050, 0, 0x000, 0), /* MX51_PAD_EIM_DA13__EIM_DA13 */
 	IMX_PIN_REG(MX51_PAD_EIM_DA14, NO_PAD, 0x054, 0, 0x000, 0), /* MX51_PAD_EIM_DA14__EIM_DA14 */
 	IMX_PIN_REG(MX51_PAD_EIM_DA15, NO_PAD, 0x058, 0, 0x000, 0), /* MX51_PAD_EIM_DA15__EIM_DA15 */
-	IMX_PIN_REG(MX51_PAD_SD2_CMD, NO_PAD, 0x3b4, 2, 0x91c, 3), /* MX51_PAD_SD2_CMD__CSPI_MOSI */
+	IMX_PIN_REG(MX51_PAD_SD2_CMD, 0x7bc, 0x3b4, 2, 0x91c, 3), /* MX51_PAD_SD2_CMD__CSPI_MOSI */
 	IMX_PIN_REG(MX51_PAD_SD2_CMD, 0x7bc, 0x3b4, 1, 0x9b0, 2), /* MX51_PAD_SD2_CMD__I2C1_SCL */
 	IMX_PIN_REG(MX51_PAD_SD2_CMD, 0x7bc, 0x3b4, 0, 0x000, 0), /* MX51_PAD_SD2_CMD__SD2_CMD */
 	IMX_PIN_REG(MX51_PAD_SD2_CLK, 0x7c0, 0x3b8, 2, 0x914, 3), /* MX51_PAD_SD2_CLK__CSPI_SCLK */
diff --git a/drivers/pinctrl/pinctrl-imx53.c b/drivers/pinctrl/pinctrl-imx53.c
index 1f49e16a9bc..783feb1ce06 100644
--- a/drivers/pinctrl/pinctrl-imx53.c
+++ b/drivers/pinctrl/pinctrl-imx53.c
@@ -23,207 +23,207 @@
 #include "pinctrl-imx.h"
 
 enum imx53_pads {
-	MX53_PAD_GPIO_19 = 1,
-	MX53_PAD_KEY_COL0 = 2,
-	MX53_PAD_KEY_ROW0 = 3,
-	MX53_PAD_KEY_COL1 = 4,
-	MX53_PAD_KEY_ROW1 = 5,
-	MX53_PAD_KEY_COL2 = 6,
-	MX53_PAD_KEY_ROW2 = 7,
-	MX53_PAD_KEY_COL3 = 8,
-	MX53_PAD_KEY_ROW3 = 9,
-	MX53_PAD_KEY_COL4 = 10,
-	MX53_PAD_KEY_ROW4 = 11,
-	MX53_PAD_DI0_DISP_CLK = 12,
-	MX53_PAD_DI0_PIN15 = 13,
-	MX53_PAD_DI0_PIN2 = 14,
-	MX53_PAD_DI0_PIN3 = 15,
-	MX53_PAD_DI0_PIN4 = 16,
-	MX53_PAD_DISP0_DAT0 = 17,
-	MX53_PAD_DISP0_DAT1 = 18,
-	MX53_PAD_DISP0_DAT2 = 19,
-	MX53_PAD_DISP0_DAT3 = 20,
-	MX53_PAD_DISP0_DAT4 = 21,
-	MX53_PAD_DISP0_DAT5 = 22,
-	MX53_PAD_DISP0_DAT6 = 23,
-	MX53_PAD_DISP0_DAT7 = 24,
-	MX53_PAD_DISP0_DAT8 = 25,
-	MX53_PAD_DISP0_DAT9 = 26,
-	MX53_PAD_DISP0_DAT10 = 27,
-	MX53_PAD_DISP0_DAT11 = 28,
-	MX53_PAD_DISP0_DAT12 = 29,
-	MX53_PAD_DISP0_DAT13 = 30,
-	MX53_PAD_DISP0_DAT14 = 31,
-	MX53_PAD_DISP0_DAT15 = 32,
-	MX53_PAD_DISP0_DAT16 = 33,
-	MX53_PAD_DISP0_DAT17 = 34,
-	MX53_PAD_DISP0_DAT18 = 35,
-	MX53_PAD_DISP0_DAT19 = 36,
-	MX53_PAD_DISP0_DAT20 = 37,
-	MX53_PAD_DISP0_DAT21 = 38,
-	MX53_PAD_DISP0_DAT22 = 39,
-	MX53_PAD_DISP0_DAT23 = 40,
-	MX53_PAD_CSI0_PIXCLK = 41,
-	MX53_PAD_CSI0_MCLK = 42,
-	MX53_PAD_CSI0_DATA_EN = 43,
-	MX53_PAD_CSI0_VSYNC = 44,
-	MX53_PAD_CSI0_DAT4 = 45,
-	MX53_PAD_CSI0_DAT5 = 46,
-	MX53_PAD_CSI0_DAT6 = 47,
-	MX53_PAD_CSI0_DAT7 = 48,
-	MX53_PAD_CSI0_DAT8 = 49,
-	MX53_PAD_CSI0_DAT9 = 50,
-	MX53_PAD_CSI0_DAT10 = 51,
-	MX53_PAD_CSI0_DAT11 = 52,
-	MX53_PAD_CSI0_DAT12 = 53,
-	MX53_PAD_CSI0_DAT13 = 54,
-	MX53_PAD_CSI0_DAT14 = 55,
-	MX53_PAD_CSI0_DAT15 = 56,
-	MX53_PAD_CSI0_DAT16 = 57,
-	MX53_PAD_CSI0_DAT17 = 58,
-	MX53_PAD_CSI0_DAT18 = 59,
-	MX53_PAD_CSI0_DAT19 = 60,
-	MX53_PAD_EIM_A25 = 61,
-	MX53_PAD_EIM_EB2 = 62,
-	MX53_PAD_EIM_D16 = 63,
-	MX53_PAD_EIM_D17 = 64,
-	MX53_PAD_EIM_D18 = 65,
-	MX53_PAD_EIM_D19 = 66,
-	MX53_PAD_EIM_D20 = 67,
-	MX53_PAD_EIM_D21 = 68,
-	MX53_PAD_EIM_D22 = 69,
-	MX53_PAD_EIM_D23 = 70,
-	MX53_PAD_EIM_EB3 = 71,
-	MX53_PAD_EIM_D24 = 72,
-	MX53_PAD_EIM_D25 = 73,
-	MX53_PAD_EIM_D26 = 74,
-	MX53_PAD_EIM_D27 = 75,
-	MX53_PAD_EIM_D28 = 76,
-	MX53_PAD_EIM_D29 = 77,
-	MX53_PAD_EIM_D30 = 78,
-	MX53_PAD_EIM_D31 = 79,
-	MX53_PAD_EIM_A24 = 80,
-	MX53_PAD_EIM_A23 = 81,
-	MX53_PAD_EIM_A22 = 82,
-	MX53_PAD_EIM_A21 = 83,
-	MX53_PAD_EIM_A20 = 84,
-	MX53_PAD_EIM_A19 = 85,
-	MX53_PAD_EIM_A18 = 86,
-	MX53_PAD_EIM_A17 = 87,
-	MX53_PAD_EIM_A16 = 88,
-	MX53_PAD_EIM_CS0 = 89,
-	MX53_PAD_EIM_CS1 = 90,
-	MX53_PAD_EIM_OE = 91,
-	MX53_PAD_EIM_RW = 92,
-	MX53_PAD_EIM_LBA = 93,
-	MX53_PAD_EIM_EB0 = 94,
-	MX53_PAD_EIM_EB1 = 95,
-	MX53_PAD_EIM_DA0 = 96,
-	MX53_PAD_EIM_DA1 = 97,
-	MX53_PAD_EIM_DA2 = 98,
-	MX53_PAD_EIM_DA3 = 99,
-	MX53_PAD_EIM_DA4 = 100,
-	MX53_PAD_EIM_DA5 = 101,
-	MX53_PAD_EIM_DA6 = 102,
-	MX53_PAD_EIM_DA7 = 103,
-	MX53_PAD_EIM_DA8 = 104,
-	MX53_PAD_EIM_DA9 = 105,
-	MX53_PAD_EIM_DA10 = 106,
-	MX53_PAD_EIM_DA11 = 107,
-	MX53_PAD_EIM_DA12 = 108,
-	MX53_PAD_EIM_DA13 = 109,
-	MX53_PAD_EIM_DA14 = 110,
-	MX53_PAD_EIM_DA15 = 111,
-	MX53_PAD_NANDF_WE_B = 112,
-	MX53_PAD_NANDF_RE_B = 113,
-	MX53_PAD_EIM_WAIT = 114,
-	MX53_PAD_LVDS1_TX3_P = 115,
-	MX53_PAD_LVDS1_TX2_P = 116,
-	MX53_PAD_LVDS1_CLK_P = 117,
-	MX53_PAD_LVDS1_TX1_P = 118,
-	MX53_PAD_LVDS1_TX0_P = 119,
-	MX53_PAD_LVDS0_TX3_P = 120,
-	MX53_PAD_LVDS0_CLK_P = 121,
-	MX53_PAD_LVDS0_TX2_P = 122,
-	MX53_PAD_LVDS0_TX1_P = 123,
-	MX53_PAD_LVDS0_TX0_P = 124,
-	MX53_PAD_GPIO_10 = 125,
-	MX53_PAD_GPIO_11 = 126,
-	MX53_PAD_GPIO_12 = 127,
-	MX53_PAD_GPIO_13 = 128,
-	MX53_PAD_GPIO_14 = 129,
-	MX53_PAD_NANDF_CLE = 130,
-	MX53_PAD_NANDF_ALE = 131,
-	MX53_PAD_NANDF_WP_B = 132,
-	MX53_PAD_NANDF_RB0 = 133,
-	MX53_PAD_NANDF_CS0 = 134,
-	MX53_PAD_NANDF_CS1 = 135,
-	MX53_PAD_NANDF_CS2 = 136,
-	MX53_PAD_NANDF_CS3 = 137,
-	MX53_PAD_FEC_MDIO = 138,
-	MX53_PAD_FEC_REF_CLK = 139,
-	MX53_PAD_FEC_RX_ER = 140,
-	MX53_PAD_FEC_CRS_DV = 141,
-	MX53_PAD_FEC_RXD1 = 142,
-	MX53_PAD_FEC_RXD0 = 143,
-	MX53_PAD_FEC_TX_EN = 144,
-	MX53_PAD_FEC_TXD1 = 145,
-	MX53_PAD_FEC_TXD0 = 146,
-	MX53_PAD_FEC_MDC = 147,
-	MX53_PAD_PATA_DIOW = 148,
-	MX53_PAD_PATA_DMACK = 149,
-	MX53_PAD_PATA_DMARQ = 150,
-	MX53_PAD_PATA_BUFFER_EN = 151,
-	MX53_PAD_PATA_INTRQ = 152,
-	MX53_PAD_PATA_DIOR = 153,
-	MX53_PAD_PATA_RESET_B = 154,
-	MX53_PAD_PATA_IORDY = 155,
-	MX53_PAD_PATA_DA_0 = 156,
-	MX53_PAD_PATA_DA_1 = 157,
-	MX53_PAD_PATA_DA_2 = 158,
-	MX53_PAD_PATA_CS_0 = 159,
-	MX53_PAD_PATA_CS_1 = 160,
-	MX53_PAD_PATA_DATA0 = 161,
-	MX53_PAD_PATA_DATA1 = 162,
-	MX53_PAD_PATA_DATA2 = 163,
-	MX53_PAD_PATA_DATA3 = 164,
-	MX53_PAD_PATA_DATA4 = 165,
-	MX53_PAD_PATA_DATA5 = 166,
-	MX53_PAD_PATA_DATA6 = 167,
-	MX53_PAD_PATA_DATA7 = 168,
-	MX53_PAD_PATA_DATA8 = 169,
-	MX53_PAD_PATA_DATA9 = 170,
-	MX53_PAD_PATA_DATA10 = 171,
-	MX53_PAD_PATA_DATA11 = 172,
-	MX53_PAD_PATA_DATA12 = 173,
-	MX53_PAD_PATA_DATA13 = 174,
-	MX53_PAD_PATA_DATA14 = 175,
-	MX53_PAD_PATA_DATA15 = 176,
-	MX53_PAD_SD1_DATA0 = 177,
-	MX53_PAD_SD1_DATA1 = 178,
-	MX53_PAD_SD1_CMD = 179,
-	MX53_PAD_SD1_DATA2 = 180,
-	MX53_PAD_SD1_CLK = 181,
-	MX53_PAD_SD1_DATA3 = 182,
-	MX53_PAD_SD2_CLK = 183,
-	MX53_PAD_SD2_CMD = 184,
-	MX53_PAD_SD2_DATA3 = 185,
-	MX53_PAD_SD2_DATA2 = 186,
-	MX53_PAD_SD2_DATA1 = 187,
-	MX53_PAD_SD2_DATA0 = 188,
-	MX53_PAD_GPIO_0 = 189,
-	MX53_PAD_GPIO_1 = 190,
-	MX53_PAD_GPIO_9 = 191,
-	MX53_PAD_GPIO_3 = 192,
-	MX53_PAD_GPIO_6 = 193,
-	MX53_PAD_GPIO_2 = 194,
-	MX53_PAD_GPIO_4 = 195,
-	MX53_PAD_GPIO_5 = 196,
-	MX53_PAD_GPIO_7 = 197,
-	MX53_PAD_GPIO_8 = 198,
-	MX53_PAD_GPIO_16 = 199,
-	MX53_PAD_GPIO_17 = 200,
-	MX53_PAD_GPIO_18 = 201,
+	MX53_PAD_GPIO_19 = 0,
+	MX53_PAD_KEY_COL0 = 1,
+	MX53_PAD_KEY_ROW0 = 2,
+	MX53_PAD_KEY_COL1 = 3,
+	MX53_PAD_KEY_ROW1 = 4,
+	MX53_PAD_KEY_COL2 = 5,
+	MX53_PAD_KEY_ROW2 = 6,
+	MX53_PAD_KEY_COL3 = 7,
+	MX53_PAD_KEY_ROW3 = 8,
+	MX53_PAD_KEY_COL4 = 9,
+	MX53_PAD_KEY_ROW4 = 10,
+	MX53_PAD_DI0_DISP_CLK = 11,
+	MX53_PAD_DI0_PIN15 = 12,
+	MX53_PAD_DI0_PIN2 = 13,
+	MX53_PAD_DI0_PIN3 = 14,
+	MX53_PAD_DI0_PIN4 = 15,
+	MX53_PAD_DISP0_DAT0 = 16,
+	MX53_PAD_DISP0_DAT1 = 17,
+	MX53_PAD_DISP0_DAT2 = 18,
+	MX53_PAD_DISP0_DAT3 = 19,
+	MX53_PAD_DISP0_DAT4 = 20,
+	MX53_PAD_DISP0_DAT5 = 21,
+	MX53_PAD_DISP0_DAT6 = 22,
+	MX53_PAD_DISP0_DAT7 = 23,
+	MX53_PAD_DISP0_DAT8 = 24,
+	MX53_PAD_DISP0_DAT9 = 25,
+	MX53_PAD_DISP0_DAT10 = 26,
+	MX53_PAD_DISP0_DAT11 = 27,
+	MX53_PAD_DISP0_DAT12 = 28,
+	MX53_PAD_DISP0_DAT13 = 29,
+	MX53_PAD_DISP0_DAT14 = 30,
+	MX53_PAD_DISP0_DAT15 = 31,
+	MX53_PAD_DISP0_DAT16 = 32,
+	MX53_PAD_DISP0_DAT17 = 33,
+	MX53_PAD_DISP0_DAT18 = 34,
+	MX53_PAD_DISP0_DAT19 = 35,
+	MX53_PAD_DISP0_DAT20 = 36,
+	MX53_PAD_DISP0_DAT21 = 37,
+	MX53_PAD_DISP0_DAT22 = 38,
+	MX53_PAD_DISP0_DAT23 = 39,
+	MX53_PAD_CSI0_PIXCLK = 40,
+	MX53_PAD_CSI0_MCLK = 41,
+	MX53_PAD_CSI0_DATA_EN = 42,
+	MX53_PAD_CSI0_VSYNC = 43,
+	MX53_PAD_CSI0_DAT4 = 44,
+	MX53_PAD_CSI0_DAT5 = 45,
+	MX53_PAD_CSI0_DAT6 = 46,
+	MX53_PAD_CSI0_DAT7 = 47,
+	MX53_PAD_CSI0_DAT8 = 48,
+	MX53_PAD_CSI0_DAT9 = 49,
+	MX53_PAD_CSI0_DAT10 = 50,
+	MX53_PAD_CSI0_DAT11 = 51,
+	MX53_PAD_CSI0_DAT12 = 52,
+	MX53_PAD_CSI0_DAT13 = 53,
+	MX53_PAD_CSI0_DAT14 = 54,
+	MX53_PAD_CSI0_DAT15 = 55,
+	MX53_PAD_CSI0_DAT16 = 56,
+	MX53_PAD_CSI0_DAT17 = 57,
+	MX53_PAD_CSI0_DAT18 = 58,
+	MX53_PAD_CSI0_DAT19 = 59,
+	MX53_PAD_EIM_A25 = 60,
+	MX53_PAD_EIM_EB2 = 61,
+	MX53_PAD_EIM_D16 = 62,
+	MX53_PAD_EIM_D17 = 63,
+	MX53_PAD_EIM_D18 = 64,
+	MX53_PAD_EIM_D19 = 65,
+	MX53_PAD_EIM_D20 = 66,
+	MX53_PAD_EIM_D21 = 67,
+	MX53_PAD_EIM_D22 = 68,
+	MX53_PAD_EIM_D23 = 69,
+	MX53_PAD_EIM_EB3 = 70,
+	MX53_PAD_EIM_D24 = 71,
+	MX53_PAD_EIM_D25 = 72,
+	MX53_PAD_EIM_D26 = 73,
+	MX53_PAD_EIM_D27 = 74,
+	MX53_PAD_EIM_D28 = 75,
+	MX53_PAD_EIM_D29 = 76,
+	MX53_PAD_EIM_D30 = 77,
+	MX53_PAD_EIM_D31 = 78,
+	MX53_PAD_EIM_A24 = 79,
+	MX53_PAD_EIM_A23 = 80,
+	MX53_PAD_EIM_A22 = 81,
+	MX53_PAD_EIM_A21 = 82,
+	MX53_PAD_EIM_A20 = 83,
+	MX53_PAD_EIM_A19 = 84,
+	MX53_PAD_EIM_A18 = 85,
+	MX53_PAD_EIM_A17 = 86,
+	MX53_PAD_EIM_A16 = 87,
+	MX53_PAD_EIM_CS0 = 88,
+	MX53_PAD_EIM_CS1 = 89,
+	MX53_PAD_EIM_OE = 90,
+	MX53_PAD_EIM_RW = 91,
+	MX53_PAD_EIM_LBA = 92,
+	MX53_PAD_EIM_EB0 = 93,
+	MX53_PAD_EIM_EB1 = 94,
+	MX53_PAD_EIM_DA0 = 95,
+	MX53_PAD_EIM_DA1 = 96,
+	MX53_PAD_EIM_DA2 = 97,
+	MX53_PAD_EIM_DA3 = 98,
+	MX53_PAD_EIM_DA4 = 99,
+	MX53_PAD_EIM_DA5 = 100,
+	MX53_PAD_EIM_DA6 = 101,
+	MX53_PAD_EIM_DA7 = 102,
+	MX53_PAD_EIM_DA8 = 103,
+	MX53_PAD_EIM_DA9 = 104,
+	MX53_PAD_EIM_DA10 = 105,
+	MX53_PAD_EIM_DA11 = 106,
+	MX53_PAD_EIM_DA12 = 107,
+	MX53_PAD_EIM_DA13 = 108,
+	MX53_PAD_EIM_DA14 = 109,
+	MX53_PAD_EIM_DA15 = 110,
+	MX53_PAD_NANDF_WE_B = 111,
+	MX53_PAD_NANDF_RE_B = 112,
+	MX53_PAD_EIM_WAIT = 113,
+	MX53_PAD_LVDS1_TX3_P = 114,
+	MX53_PAD_LVDS1_TX2_P = 115,
+	MX53_PAD_LVDS1_CLK_P = 116,
+	MX53_PAD_LVDS1_TX1_P = 117,
+	MX53_PAD_LVDS1_TX0_P = 118,
+	MX53_PAD_LVDS0_TX3_P = 119,
+	MX53_PAD_LVDS0_CLK_P = 120,
+	MX53_PAD_LVDS0_TX2_P = 121,
+	MX53_PAD_LVDS0_TX1_P = 122,
+	MX53_PAD_LVDS0_TX0_P = 123,
+	MX53_PAD_GPIO_10 = 124,
+	MX53_PAD_GPIO_11 = 125,
+	MX53_PAD_GPIO_12 = 126,
+	MX53_PAD_GPIO_13 = 127,
+	MX53_PAD_GPIO_14 = 128,
+	MX53_PAD_NANDF_CLE = 129,
+	MX53_PAD_NANDF_ALE = 130,
+	MX53_PAD_NANDF_WP_B = 131,
+	MX53_PAD_NANDF_RB0 = 132,
+	MX53_PAD_NANDF_CS0 = 133,
+	MX53_PAD_NANDF_CS1 = 134,
+	MX53_PAD_NANDF_CS2 = 135,
+	MX53_PAD_NANDF_CS3 = 136,
+	MX53_PAD_FEC_MDIO = 137,
+	MX53_PAD_FEC_REF_CLK = 138,
+	MX53_PAD_FEC_RX_ER = 139,
+	MX53_PAD_FEC_CRS_DV = 140,
+	MX53_PAD_FEC_RXD1 = 141,
+	MX53_PAD_FEC_RXD0 = 142,
+	MX53_PAD_FEC_TX_EN = 143,
+	MX53_PAD_FEC_TXD1 = 144,
+	MX53_PAD_FEC_TXD0 = 145,
+	MX53_PAD_FEC_MDC = 146,
+	MX53_PAD_PATA_DIOW = 147,
+	MX53_PAD_PATA_DMACK = 148,
+	MX53_PAD_PATA_DMARQ = 149,
+	MX53_PAD_PATA_BUFFER_EN = 150,
+	MX53_PAD_PATA_INTRQ = 151,
+	MX53_PAD_PATA_DIOR = 152,
+	MX53_PAD_PATA_RESET_B = 153,
+	MX53_PAD_PATA_IORDY = 154,
+	MX53_PAD_PATA_DA_0 = 155,
+	MX53_PAD_PATA_DA_1 = 156,
+	MX53_PAD_PATA_DA_2 = 157,
+	MX53_PAD_PATA_CS_0 = 158,
+	MX53_PAD_PATA_CS_1 = 159,
+	MX53_PAD_PATA_DATA0 = 160,
+	MX53_PAD_PATA_DATA1 = 161,
+	MX53_PAD_PATA_DATA2 = 162,
+	MX53_PAD_PATA_DATA3 = 163,
+	MX53_PAD_PATA_DATA4 = 164,
+	MX53_PAD_PATA_DATA5 = 165,
+	MX53_PAD_PATA_DATA6 = 166,
+	MX53_PAD_PATA_DATA7 = 167,
+	MX53_PAD_PATA_DATA8 = 168,
+	MX53_PAD_PATA_DATA9 = 169,
+	MX53_PAD_PATA_DATA10 = 170,
+	MX53_PAD_PATA_DATA11 = 171,
+	MX53_PAD_PATA_DATA12 = 172,
+	MX53_PAD_PATA_DATA13 = 173,
+	MX53_PAD_PATA_DATA14 = 174,
+	MX53_PAD_PATA_DATA15 = 175,
+	MX53_PAD_SD1_DATA0 = 176,
+	MX53_PAD_SD1_DATA1 = 177,
+	MX53_PAD_SD1_CMD = 178,
+	MX53_PAD_SD1_DATA2 = 179,
+	MX53_PAD_SD1_CLK = 180,
+	MX53_PAD_SD1_DATA3 = 181,
+	MX53_PAD_SD2_CLK = 182,
+	MX53_PAD_SD2_CMD = 183,
+	MX53_PAD_SD2_DATA3 = 184,
+	MX53_PAD_SD2_DATA2 = 185,
+	MX53_PAD_SD2_DATA1 = 186,
+	MX53_PAD_SD2_DATA0 = 187,
+	MX53_PAD_GPIO_0 = 188,
+	MX53_PAD_GPIO_1 = 189,
+	MX53_PAD_GPIO_9 = 190,
+	MX53_PAD_GPIO_3 = 191,
+	MX53_PAD_GPIO_6 = 192,
+	MX53_PAD_GPIO_2 = 193,
+	MX53_PAD_GPIO_4 = 194,
+	MX53_PAD_GPIO_5 = 195,
+	MX53_PAD_GPIO_7 = 196,
+	MX53_PAD_GPIO_8 = 197,
+	MX53_PAD_GPIO_16 = 198,
+	MX53_PAD_GPIO_17 = 199,
+	MX53_PAD_GPIO_18 = 200,
 };
 
 /* imx53 register maps */
diff --git a/drivers/pinctrl/pinctrl-nomadik-db8500.c b/drivers/pinctrl/pinctrl-nomadik-db8500.c
index 6f99769c673..ec6209dd7c3 100644
--- a/drivers/pinctrl/pinctrl-nomadik-db8500.c
+++ b/drivers/pinctrl/pinctrl-nomadik-db8500.c
@@ -465,6 +465,8 @@ static const unsigned mc4_a_1_pins[] = { DB8500_PIN_AH24, DB8500_PIN_AG25,
 static const unsigned mc1_a_1_pins[] = { DB8500_PIN_AH16, DB8500_PIN_AG15,
 	DB8500_PIN_AJ15, DB8500_PIN_AG14, DB8500_PIN_AF13, DB8500_PIN_AG13,
 	DB8500_PIN_AH15 };
+static const unsigned mc1_a_2_pins[] = { DB8500_PIN_AH16, DB8500_PIN_AJ15,
+	DB8500_PIN_AG14, DB8500_PIN_AF13, DB8500_PIN_AG13,DB8500_PIN_AH15 };
 static const unsigned mc1dir_a_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12,
 	DB8500_PIN_AH12, DB8500_PIN_AH11 };
 static const unsigned hsir_a_1_pins[] = { DB8500_PIN_AG10, DB8500_PIN_AH10,
@@ -505,6 +507,8 @@ static const unsigned kp_b_1_pins[] = { DB8500_PIN_F3, DB8500_PIN_F1,
 	DB8500_PIN_J3, DB8500_PIN_H2, DB8500_PIN_J2, DB8500_PIN_H1,
 	DB8500_PIN_F4, DB8500_PIN_E3, DB8500_PIN_E4, DB8500_PIN_D2,
 	DB8500_PIN_C1, DB8500_PIN_D3, DB8500_PIN_C2, DB8500_PIN_D5 };
+static const unsigned kp_b_2_pins[] = { DB8500_PIN_F3, DB8500_PIN_F1,
+	DB8500_PIN_G3, DB8500_PIN_G2, DB8500_PIN_F4, DB8500_PIN_E3};
 static const unsigned sm_b_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3,
 	DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6,
 	DB8500_PIN_D6, DB8500_PIN_B7, DB8500_PIN_D7, DB8500_PIN_D8,
@@ -639,6 +643,7 @@ static const struct nmk_pingroup nmk_db8500_groups[] = {
 	DB8500_PIN_GROUP(msp2_a_1, NMK_GPIO_ALT_A),
 	DB8500_PIN_GROUP(mc4_a_1, NMK_GPIO_ALT_A),
 	DB8500_PIN_GROUP(mc1_a_1, NMK_GPIO_ALT_A),
+	DB8500_PIN_GROUP(mc1_a_2, NMK_GPIO_ALT_A),
 	DB8500_PIN_GROUP(hsir_a_1, NMK_GPIO_ALT_A),
 	DB8500_PIN_GROUP(hsit_a_1, NMK_GPIO_ALT_A),
 	DB8500_PIN_GROUP(hsit_a_2, NMK_GPIO_ALT_A),
@@ -662,6 +667,7 @@ static const struct nmk_pingroup nmk_db8500_groups[] = {
 	DB8500_PIN_GROUP(spi3_b_1, NMK_GPIO_ALT_B),
 	DB8500_PIN_GROUP(msp1txrx_b_1, NMK_GPIO_ALT_B),
 	DB8500_PIN_GROUP(kp_b_1, NMK_GPIO_ALT_B),
+	DB8500_PIN_GROUP(kp_b_2, NMK_GPIO_ALT_B),
 	DB8500_PIN_GROUP(sm_b_1, NMK_GPIO_ALT_B),
 	DB8500_PIN_GROUP(smcs0_b_1, NMK_GPIO_ALT_B),
 	DB8500_PIN_GROUP(smcs1_b_1, NMK_GPIO_ALT_B),
@@ -751,7 +757,7 @@ DB8500_FUNC_GROUPS(msp1, "msp1txrx_a_1", "msp1_a_1", "msp1txrx_b_1");
 DB8500_FUNC_GROUPS(lcdb, "lcdb_a_1");
 DB8500_FUNC_GROUPS(lcd, "lcdvsi0_a_1", "lcdvsi1_a_1", "lcd_d0_d7_a_1",
 	"lcd_d8_d11_a_1", "lcd_d12_d23_a_1", "lcd_b_1");
-DB8500_FUNC_GROUPS(kp, "kp_a_1", "kp_b_1", "kp_c_1", "kp_oc1_1");
+DB8500_FUNC_GROUPS(kp, "kp_a_1", "kp_b_1", "kp_b_2", "kp_c_1", "kp_oc1_1");
 DB8500_FUNC_GROUPS(mc2, "mc2_a_1", "mc2rstn_c_1");
 DB8500_FUNC_GROUPS(ssp1, "ssp1_a_1");
 DB8500_FUNC_GROUPS(ssp0, "ssp0_a_1");
@@ -765,8 +771,8 @@ DB8500_FUNC_GROUPS(ipgpio, "ipgpio0_a_1", "ipgpio1_a_1", "ipgpio7_b_1",
 /* MSP2 can not invert the RX/TX pins but has the optional SCK pin */
 DB8500_FUNC_GROUPS(msp2, "msp2sck_a_1", "msp2_a_1");
 DB8500_FUNC_GROUPS(mc4, "mc4_a_1", "mc4rstn_c_1");
-DB8500_FUNC_GROUPS(mc1, "mc1_a_1", "mc1dir_a_1");
-DB8500_FUNC_GROUPS(hsi, "hsir1_a_1", "hsit1_a_1", "hsit_a_2");
+DB8500_FUNC_GROUPS(mc1, "mc1_a_1", "mc1_a_2", "mc1dir_a_1");
+DB8500_FUNC_GROUPS(hsi, "hsir_a_1", "hsit_a_1", "hsit_a_2");
 DB8500_FUNC_GROUPS(clkout, "clkout_a_1", "clkout_a_2", "clkout_c_1");
 DB8500_FUNC_GROUPS(usb, "usb_a_1");
 DB8500_FUNC_GROUPS(trig, "trig_b_1");
diff --git a/drivers/pinctrl/pinctrl-nomadik-db8540.c b/drivers/pinctrl/pinctrl-nomadik-db8540.c
new file mode 100644
index 00000000000..3daf665c84c
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-nomadik-db8540.c
@@ -0,0 +1,999 @@
+#include <linux/kernel.h>
+#include <linux/pinctrl/pinctrl.h>
+#include "pinctrl-nomadik.h"
+
+/* All the pins that can be used for GPIO and some other functions */
+#define _GPIO(offset)		(offset)
+
+#define DB8540_PIN_AH6		_GPIO(0)
+#define DB8540_PIN_AG7		_GPIO(1)
+#define DB8540_PIN_AF2		_GPIO(2)
+#define DB8540_PIN_AD3		_GPIO(3)
+#define DB8540_PIN_AF6		_GPIO(4)
+#define DB8540_PIN_AG6		_GPIO(5)
+#define DB8540_PIN_AD5		_GPIO(6)
+#define DB8540_PIN_AF7		_GPIO(7)
+#define DB8540_PIN_AG5		_GPIO(8)
+#define DB8540_PIN_AH5		_GPIO(9)
+#define DB8540_PIN_AE4		_GPIO(10)
+#define DB8540_PIN_AD1		_GPIO(11)
+#define DB8540_PIN_AD2		_GPIO(12)
+#define DB8540_PIN_AC2		_GPIO(13)
+#define DB8540_PIN_AC4		_GPIO(14)
+#define DB8540_PIN_AC3		_GPIO(15)
+#define DB8540_PIN_AH7		_GPIO(16)
+#define DB8540_PIN_AE7		_GPIO(17)
+/* Hole */
+#define DB8540_PIN_AF8		_GPIO(22)
+#define DB8540_PIN_AH11		_GPIO(23)
+#define DB8540_PIN_AG11		_GPIO(24)
+#define DB8540_PIN_AF11		_GPIO(25)
+#define DB8540_PIN_AH10		_GPIO(26)
+#define DB8540_PIN_AG10		_GPIO(27)
+#define DB8540_PIN_AF10		_GPIO(28)
+/* Hole */
+#define DB8540_PIN_AD4		_GPIO(33)
+#define DB8540_PIN_AF3		_GPIO(34)
+#define DB8540_PIN_AF5		_GPIO(35)
+#define DB8540_PIN_AG4		_GPIO(36)
+#define DB8540_PIN_AF9		_GPIO(37)
+#define DB8540_PIN_AE8		_GPIO(38)
+/* Hole */
+#define DB8540_PIN_M26		_GPIO(64)
+#define DB8540_PIN_M25		_GPIO(65)
+#define DB8540_PIN_M27		_GPIO(66)
+#define DB8540_PIN_N25		_GPIO(67)
+/* Hole */
+#define DB8540_PIN_M28		_GPIO(70)
+#define DB8540_PIN_N26		_GPIO(71)
+#define DB8540_PIN_M22		_GPIO(72)
+#define DB8540_PIN_N22		_GPIO(73)
+#define DB8540_PIN_N27		_GPIO(74)
+#define DB8540_PIN_N28		_GPIO(75)
+#define DB8540_PIN_P22		_GPIO(76)
+#define DB8540_PIN_P28		_GPIO(77)
+#define DB8540_PIN_P26		_GPIO(78)
+#define DB8540_PIN_T22		_GPIO(79)
+#define DB8540_PIN_R27		_GPIO(80)
+#define DB8540_PIN_P27		_GPIO(81)
+#define DB8540_PIN_R26		_GPIO(82)
+#define DB8540_PIN_R25		_GPIO(83)
+#define DB8540_PIN_U22		_GPIO(84)
+#define DB8540_PIN_T27		_GPIO(85)
+#define DB8540_PIN_T25		_GPIO(86)
+#define DB8540_PIN_T26		_GPIO(87)
+/* Hole */
+#define DB8540_PIN_AF20		_GPIO(116)
+#define DB8540_PIN_AG21		_GPIO(117)
+#define DB8540_PIN_AH19		_GPIO(118)
+#define DB8540_PIN_AE19		_GPIO(119)
+#define DB8540_PIN_AG18		_GPIO(120)
+#define DB8540_PIN_AH17		_GPIO(121)
+#define DB8540_PIN_AF19		_GPIO(122)
+#define DB8540_PIN_AF18		_GPIO(123)
+#define DB8540_PIN_AE18		_GPIO(124)
+#define DB8540_PIN_AG17		_GPIO(125)
+#define DB8540_PIN_AF17		_GPIO(126)
+#define DB8540_PIN_AE17		_GPIO(127)
+#define DB8540_PIN_AC27		_GPIO(128)
+#define DB8540_PIN_AD27		_GPIO(129)
+#define DB8540_PIN_AE28		_GPIO(130)
+#define DB8540_PIN_AG26		_GPIO(131)
+#define DB8540_PIN_AF25		_GPIO(132)
+#define DB8540_PIN_AE27		_GPIO(133)
+#define DB8540_PIN_AF27		_GPIO(134)
+#define DB8540_PIN_AG28		_GPIO(135)
+#define DB8540_PIN_AF28		_GPIO(136)
+#define DB8540_PIN_AG25		_GPIO(137)
+#define DB8540_PIN_AG24		_GPIO(138)
+#define DB8540_PIN_AD25		_GPIO(139)
+#define DB8540_PIN_AH25		_GPIO(140)
+#define DB8540_PIN_AF26		_GPIO(141)
+#define DB8540_PIN_AF23		_GPIO(142)
+#define DB8540_PIN_AG23		_GPIO(143)
+#define DB8540_PIN_AE25		_GPIO(144)
+#define DB8540_PIN_AH24		_GPIO(145)
+#define DB8540_PIN_AJ25		_GPIO(146)
+#define DB8540_PIN_AG27		_GPIO(147)
+#define DB8540_PIN_AH23		_GPIO(148)
+#define DB8540_PIN_AE26		_GPIO(149)
+#define DB8540_PIN_AE24		_GPIO(150)
+#define DB8540_PIN_AJ24		_GPIO(151)
+#define DB8540_PIN_AE21		_GPIO(152)
+#define DB8540_PIN_AG22		_GPIO(153)
+#define DB8540_PIN_AF21		_GPIO(154)
+#define DB8540_PIN_AF24		_GPIO(155)
+#define DB8540_PIN_AH22		_GPIO(156)
+#define DB8540_PIN_AJ23		_GPIO(157)
+#define DB8540_PIN_AH21		_GPIO(158)
+#define DB8540_PIN_AG20		_GPIO(159)
+#define DB8540_PIN_AE23		_GPIO(160)
+#define DB8540_PIN_AH20		_GPIO(161)
+#define DB8540_PIN_AG19		_GPIO(162)
+#define DB8540_PIN_AF22		_GPIO(163)
+#define DB8540_PIN_AJ21		_GPIO(164)
+#define DB8540_PIN_AD26		_GPIO(165)
+#define DB8540_PIN_AD28		_GPIO(166)
+#define DB8540_PIN_AC28		_GPIO(167)
+#define DB8540_PIN_AC26		_GPIO(168)
+/* Hole */
+#define DB8540_PIN_J3		_GPIO(192)
+#define DB8540_PIN_H1		_GPIO(193)
+#define DB8540_PIN_J2		_GPIO(194)
+#define DB8540_PIN_H2		_GPIO(195)
+#define DB8540_PIN_H3		_GPIO(196)
+#define DB8540_PIN_H4		_GPIO(197)
+#define DB8540_PIN_G2		_GPIO(198)
+#define DB8540_PIN_G3		_GPIO(199)
+#define DB8540_PIN_G4		_GPIO(200)
+#define DB8540_PIN_F2		_GPIO(201)
+#define DB8540_PIN_C6		_GPIO(202)
+#define DB8540_PIN_B6		_GPIO(203)
+#define DB8540_PIN_B7		_GPIO(204)
+#define DB8540_PIN_A7		_GPIO(205)
+#define DB8540_PIN_D7		_GPIO(206)
+#define DB8540_PIN_D8		_GPIO(207)
+#define DB8540_PIN_F3		_GPIO(208)
+#define DB8540_PIN_E2		_GPIO(209)
+#define DB8540_PIN_C7		_GPIO(210)
+#define DB8540_PIN_B8		_GPIO(211)
+#define DB8540_PIN_C10		_GPIO(212)
+#define DB8540_PIN_C8		_GPIO(213)
+#define DB8540_PIN_C9		_GPIO(214)
+/* Hole */
+#define DB8540_PIN_B9		_GPIO(219)
+#define DB8540_PIN_A10		_GPIO(220)
+#define DB8540_PIN_D9		_GPIO(221)
+#define DB8540_PIN_B11		_GPIO(222)
+#define DB8540_PIN_B10		_GPIO(223)
+#define DB8540_PIN_E10		_GPIO(224)
+#define DB8540_PIN_B12		_GPIO(225)
+#define DB8540_PIN_D10		_GPIO(226)
+#define DB8540_PIN_D11		_GPIO(227)
+#define DB8540_PIN_AJ6		_GPIO(228)
+#define DB8540_PIN_B13		_GPIO(229)
+#define DB8540_PIN_C12		_GPIO(230)
+#define DB8540_PIN_B14		_GPIO(231)
+#define DB8540_PIN_E11		_GPIO(232)
+/* Hole */
+#define DB8540_PIN_D12		_GPIO(256)
+#define DB8540_PIN_D15		_GPIO(257)
+#define DB8540_PIN_C13		_GPIO(258)
+#define DB8540_PIN_C14		_GPIO(259)
+#define DB8540_PIN_C18		_GPIO(260)
+#define DB8540_PIN_C16		_GPIO(261)
+#define DB8540_PIN_B16		_GPIO(262)
+#define DB8540_PIN_D18		_GPIO(263)
+#define DB8540_PIN_C15		_GPIO(264)
+#define DB8540_PIN_C17		_GPIO(265)
+#define DB8540_PIN_B17		_GPIO(266)
+#define DB8540_PIN_D17		_GPIO(267)
+
+/*
+ * The names of the pins are denoted by GPIO number and ball name, even
+ * though they can be used for other things than GPIO, this is the first
+ * column in the table of the data sheet and often used on schematics and
+ * such.
+ */
+static const struct pinctrl_pin_desc nmk_db8540_pins[] = {
+	PINCTRL_PIN(DB8540_PIN_AH6, "GPIO0_AH6"),
+	PINCTRL_PIN(DB8540_PIN_AG7, "GPIO1_AG7"),
+	PINCTRL_PIN(DB8540_PIN_AF2, "GPIO2_AF2"),
+	PINCTRL_PIN(DB8540_PIN_AD3, "GPIO3_AD3"),
+	PINCTRL_PIN(DB8540_PIN_AF6, "GPIO4_AF6"),
+	PINCTRL_PIN(DB8540_PIN_AG6, "GPIO5_AG6"),
+	PINCTRL_PIN(DB8540_PIN_AD5, "GPIO6_AD5"),
+	PINCTRL_PIN(DB8540_PIN_AF7, "GPIO7_AF7"),
+	PINCTRL_PIN(DB8540_PIN_AG5, "GPIO8_AG5"),
+	PINCTRL_PIN(DB8540_PIN_AH5, "GPIO9_AH5"),
+	PINCTRL_PIN(DB8540_PIN_AE4, "GPIO10_AE4"),
+	PINCTRL_PIN(DB8540_PIN_AD1, "GPIO11_AD1"),
+	PINCTRL_PIN(DB8540_PIN_AD2, "GPIO12_AD2"),
+	PINCTRL_PIN(DB8540_PIN_AC2, "GPIO13_AC2"),
+	PINCTRL_PIN(DB8540_PIN_AC4, "GPIO14_AC4"),
+	PINCTRL_PIN(DB8540_PIN_AC3, "GPIO15_AC3"),
+	PINCTRL_PIN(DB8540_PIN_AH7, "GPIO16_AH7"),
+	PINCTRL_PIN(DB8540_PIN_AE7, "GPIO17_AE7"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_AF8, "GPIO22_AF8"),
+	PINCTRL_PIN(DB8540_PIN_AH11, "GPIO23_AH11"),
+	PINCTRL_PIN(DB8540_PIN_AG11, "GPIO24_AG11"),
+	PINCTRL_PIN(DB8540_PIN_AF11, "GPIO25_AF11"),
+	PINCTRL_PIN(DB8540_PIN_AH10, "GPIO26_AH10"),
+	PINCTRL_PIN(DB8540_PIN_AG10, "GPIO27_AG10"),
+	PINCTRL_PIN(DB8540_PIN_AF10, "GPIO28_AF10"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_AD4, "GPIO33_AD4"),
+	PINCTRL_PIN(DB8540_PIN_AF3, "GPIO34_AF3"),
+	PINCTRL_PIN(DB8540_PIN_AF5, "GPIO35_AF5"),
+	PINCTRL_PIN(DB8540_PIN_AG4, "GPIO36_AG4"),
+	PINCTRL_PIN(DB8540_PIN_AF9, "GPIO37_AF9"),
+	PINCTRL_PIN(DB8540_PIN_AE8, "GPIO38_AE8"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_M26, "GPIO64_M26"),
+	PINCTRL_PIN(DB8540_PIN_M25, "GPIO65_M25"),
+	PINCTRL_PIN(DB8540_PIN_M27, "GPIO66_M27"),
+	PINCTRL_PIN(DB8540_PIN_N25, "GPIO67_N25"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_M28, "GPIO70_M28"),
+	PINCTRL_PIN(DB8540_PIN_N26, "GPIO71_N26"),
+	PINCTRL_PIN(DB8540_PIN_M22, "GPIO72_M22"),
+	PINCTRL_PIN(DB8540_PIN_N22, "GPIO73_N22"),
+	PINCTRL_PIN(DB8540_PIN_N27, "GPIO74_N27"),
+	PINCTRL_PIN(DB8540_PIN_N28, "GPIO75_N28"),
+	PINCTRL_PIN(DB8540_PIN_P22, "GPIO76_P22"),
+	PINCTRL_PIN(DB8540_PIN_P28, "GPIO77_P28"),
+	PINCTRL_PIN(DB8540_PIN_P26, "GPIO78_P26"),
+	PINCTRL_PIN(DB8540_PIN_T22, "GPIO79_T22"),
+	PINCTRL_PIN(DB8540_PIN_R27, "GPIO80_R27"),
+	PINCTRL_PIN(DB8540_PIN_P27, "GPIO81_P27"),
+	PINCTRL_PIN(DB8540_PIN_R26, "GPIO82_R26"),
+	PINCTRL_PIN(DB8540_PIN_R25, "GPIO83_R25"),
+	PINCTRL_PIN(DB8540_PIN_U22, "GPIO84_U22"),
+	PINCTRL_PIN(DB8540_PIN_T27, "GPIO85_T27"),
+	PINCTRL_PIN(DB8540_PIN_T25, "GPIO86_T25"),
+	PINCTRL_PIN(DB8540_PIN_T26, "GPIO87_T26"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_AF20, "GPIO116_AF20"),
+	PINCTRL_PIN(DB8540_PIN_AG21, "GPIO117_AG21"),
+	PINCTRL_PIN(DB8540_PIN_AH19, "GPIO118_AH19"),
+	PINCTRL_PIN(DB8540_PIN_AE19, "GPIO119_AE19"),
+	PINCTRL_PIN(DB8540_PIN_AG18, "GPIO120_AG18"),
+	PINCTRL_PIN(DB8540_PIN_AH17, "GPIO121_AH17"),
+	PINCTRL_PIN(DB8540_PIN_AF19, "GPIO122_AF19"),
+	PINCTRL_PIN(DB8540_PIN_AF18, "GPIO123_AF18"),
+	PINCTRL_PIN(DB8540_PIN_AE18, "GPIO124_AE18"),
+	PINCTRL_PIN(DB8540_PIN_AG17, "GPIO125_AG17"),
+	PINCTRL_PIN(DB8540_PIN_AF17, "GPIO126_AF17"),
+	PINCTRL_PIN(DB8540_PIN_AE17, "GPIO127_AE17"),
+	PINCTRL_PIN(DB8540_PIN_AC27, "GPIO128_AC27"),
+	PINCTRL_PIN(DB8540_PIN_AD27, "GPIO129_AD27"),
+	PINCTRL_PIN(DB8540_PIN_AE28, "GPIO130_AE28"),
+	PINCTRL_PIN(DB8540_PIN_AG26, "GPIO131_AG26"),
+	PINCTRL_PIN(DB8540_PIN_AF25, "GPIO132_AF25"),
+	PINCTRL_PIN(DB8540_PIN_AE27, "GPIO133_AE27"),
+	PINCTRL_PIN(DB8540_PIN_AF27, "GPIO134_AF27"),
+	PINCTRL_PIN(DB8540_PIN_AG28, "GPIO135_AG28"),
+	PINCTRL_PIN(DB8540_PIN_AF28, "GPIO136_AF28"),
+	PINCTRL_PIN(DB8540_PIN_AG25, "GPIO137_AG25"),
+	PINCTRL_PIN(DB8540_PIN_AG24, "GPIO138_AG24"),
+	PINCTRL_PIN(DB8540_PIN_AD25, "GPIO139_AD25"),
+	PINCTRL_PIN(DB8540_PIN_AH25, "GPIO140_AH25"),
+	PINCTRL_PIN(DB8540_PIN_AF26, "GPIO141_AF26"),
+	PINCTRL_PIN(DB8540_PIN_AF23, "GPIO142_AF23"),
+	PINCTRL_PIN(DB8540_PIN_AG23, "GPIO143_AG23"),
+	PINCTRL_PIN(DB8540_PIN_AE25, "GPIO144_AE25"),
+	PINCTRL_PIN(DB8540_PIN_AH24, "GPIO145_AH24"),
+	PINCTRL_PIN(DB8540_PIN_AJ25, "GPIO146_AJ25"),
+	PINCTRL_PIN(DB8540_PIN_AG27, "GPIO147_AG27"),
+	PINCTRL_PIN(DB8540_PIN_AH23, "GPIO148_AH23"),
+	PINCTRL_PIN(DB8540_PIN_AE26, "GPIO149_AE26"),
+	PINCTRL_PIN(DB8540_PIN_AE24, "GPIO150_AE24"),
+	PINCTRL_PIN(DB8540_PIN_AJ24, "GPIO151_AJ24"),
+	PINCTRL_PIN(DB8540_PIN_AE21, "GPIO152_AE21"),
+	PINCTRL_PIN(DB8540_PIN_AG22, "GPIO153_AG22"),
+	PINCTRL_PIN(DB8540_PIN_AF21, "GPIO154_AF21"),
+	PINCTRL_PIN(DB8540_PIN_AF24, "GPIO155_AF24"),
+	PINCTRL_PIN(DB8540_PIN_AH22, "GPIO156_AH22"),
+	PINCTRL_PIN(DB8540_PIN_AJ23, "GPIO157_AJ23"),
+	PINCTRL_PIN(DB8540_PIN_AH21, "GPIO158_AH21"),
+	PINCTRL_PIN(DB8540_PIN_AG20, "GPIO159_AG20"),
+	PINCTRL_PIN(DB8540_PIN_AE23, "GPIO160_AE23"),
+	PINCTRL_PIN(DB8540_PIN_AH20, "GPIO161_AH20"),
+	PINCTRL_PIN(DB8540_PIN_AG19, "GPIO162_AG19"),
+	PINCTRL_PIN(DB8540_PIN_AF22, "GPIO163_AF22"),
+	PINCTRL_PIN(DB8540_PIN_AJ21, "GPIO164_AJ21"),
+	PINCTRL_PIN(DB8540_PIN_AD26, "GPIO165_AD26"),
+	PINCTRL_PIN(DB8540_PIN_AD28, "GPIO166_AD28"),
+	PINCTRL_PIN(DB8540_PIN_AC28, "GPIO167_AC28"),
+	PINCTRL_PIN(DB8540_PIN_AC26, "GPIO168_AC26"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_J3, "GPIO192_J3"),
+	PINCTRL_PIN(DB8540_PIN_H1, "GPIO193_H1"),
+	PINCTRL_PIN(DB8540_PIN_J2, "GPIO194_J2"),
+	PINCTRL_PIN(DB8540_PIN_H2, "GPIO195_H2"),
+	PINCTRL_PIN(DB8540_PIN_H3, "GPIO196_H3"),
+	PINCTRL_PIN(DB8540_PIN_H4, "GPIO197_H4"),
+	PINCTRL_PIN(DB8540_PIN_G2, "GPIO198_G2"),
+	PINCTRL_PIN(DB8540_PIN_G3, "GPIO199_G3"),
+	PINCTRL_PIN(DB8540_PIN_G4, "GPIO200_G4"),
+	PINCTRL_PIN(DB8540_PIN_F2, "GPIO201_F2"),
+	PINCTRL_PIN(DB8540_PIN_C6, "GPIO202_C6"),
+	PINCTRL_PIN(DB8540_PIN_B6, "GPIO203_B6"),
+	PINCTRL_PIN(DB8540_PIN_B7, "GPIO204_B7"),
+	PINCTRL_PIN(DB8540_PIN_A7, "GPIO205_A7"),
+	PINCTRL_PIN(DB8540_PIN_D7, "GPIO206_D7"),
+	PINCTRL_PIN(DB8540_PIN_D8, "GPIO207_D8"),
+	PINCTRL_PIN(DB8540_PIN_F3, "GPIO208_F3"),
+	PINCTRL_PIN(DB8540_PIN_E2, "GPIO209_E2"),
+	PINCTRL_PIN(DB8540_PIN_C7, "GPIO210_C7"),
+	PINCTRL_PIN(DB8540_PIN_B8, "GPIO211_B8"),
+	PINCTRL_PIN(DB8540_PIN_C10, "GPIO212_C10"),
+	PINCTRL_PIN(DB8540_PIN_C8, "GPIO213_C8"),
+	PINCTRL_PIN(DB8540_PIN_C9, "GPIO214_C9"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_B9, "GPIO219_B9"),
+	PINCTRL_PIN(DB8540_PIN_A10, "GPIO220_A10"),
+	PINCTRL_PIN(DB8540_PIN_D9, "GPIO221_D9"),
+	PINCTRL_PIN(DB8540_PIN_B11, "GPIO222_B11"),
+	PINCTRL_PIN(DB8540_PIN_B10, "GPIO223_B10"),
+	PINCTRL_PIN(DB8540_PIN_E10, "GPIO224_E10"),
+	PINCTRL_PIN(DB8540_PIN_B12, "GPIO225_B12"),
+	PINCTRL_PIN(DB8540_PIN_D10, "GPIO226_D10"),
+	PINCTRL_PIN(DB8540_PIN_D11, "GPIO227_D11"),
+	PINCTRL_PIN(DB8540_PIN_AJ6, "GPIO228_AJ6"),
+	PINCTRL_PIN(DB8540_PIN_B13, "GPIO229_B13"),
+	PINCTRL_PIN(DB8540_PIN_C12, "GPIO230_C12"),
+	PINCTRL_PIN(DB8540_PIN_B14, "GPIO231_B14"),
+	PINCTRL_PIN(DB8540_PIN_E11, "GPIO232_E11"),
+	/* Hole */
+	PINCTRL_PIN(DB8540_PIN_D12, "GPIO256_D12"),
+	PINCTRL_PIN(DB8540_PIN_D15, "GPIO257_D15"),
+	PINCTRL_PIN(DB8540_PIN_C13, "GPIO258_C13"),
+	PINCTRL_PIN(DB8540_PIN_C14, "GPIO259_C14"),
+	PINCTRL_PIN(DB8540_PIN_C18, "GPIO260_C18"),
+	PINCTRL_PIN(DB8540_PIN_C16, "GPIO261_C16"),
+	PINCTRL_PIN(DB8540_PIN_B16, "GPIO262_B16"),
+	PINCTRL_PIN(DB8540_PIN_D18, "GPIO263_D18"),
+	PINCTRL_PIN(DB8540_PIN_C15, "GPIO264_C15"),
+	PINCTRL_PIN(DB8540_PIN_C17, "GPIO265_C17"),
+	PINCTRL_PIN(DB8540_PIN_B17, "GPIO266_B17"),
+	PINCTRL_PIN(DB8540_PIN_D17, "GPIO267_D17"),
+};
+
+#define DB8540_GPIO_RANGE(a, b, c) { .name = "db8540", .id = a, .base = b, \
+			.pin_base = b, .npins = c }
+
+/*
+ * This matches the 32-pin gpio chips registered by the GPIO portion. This
+ * cannot be const since we assign the struct gpio_chip * pointer at runtime.
+ */
+static struct pinctrl_gpio_range nmk_db8540_ranges[] = {
+	DB8540_GPIO_RANGE(0, 0, 18),
+	DB8540_GPIO_RANGE(0, 22, 7),
+	DB8540_GPIO_RANGE(1, 33, 6),
+	DB8540_GPIO_RANGE(2, 64, 4),
+	DB8540_GPIO_RANGE(2, 70, 18),
+	DB8540_GPIO_RANGE(3, 116, 12),
+	DB8540_GPIO_RANGE(4, 128, 32),
+	DB8540_GPIO_RANGE(5, 160, 9),
+	DB8540_GPIO_RANGE(6, 192, 23),
+	DB8540_GPIO_RANGE(6, 219, 5),
+	DB8540_GPIO_RANGE(7, 224, 9),
+	DB8540_GPIO_RANGE(8, 256, 12),
+};
+
+/*
+ * Read the pin group names like this:
+ * u0_a_1    = first groups of pins for uart0 on alt function a
+ * i2c2_b_2  = second group of pins for i2c2 on alt function b
+ *
+ * The groups are arranged as sets per altfunction column, so we can
+ * mux in one group at a time by selecting the same altfunction for them
+ * all. When functions require pins on different altfunctions, you need
+ * to combine several groups.
+ */
+
+/* Altfunction A column */
+static const unsigned u0_a_1_pins[] = { DB8540_PIN_AH6, DB8540_PIN_AG7,
+					DB8540_PIN_AF2, DB8540_PIN_AD3 };
+static const unsigned u1rxtx_a_1_pins[] = { DB8540_PIN_AF6, DB8540_PIN_AG6 };
+static const unsigned u1ctsrts_a_1_pins[] = { DB8540_PIN_AD5, DB8540_PIN_AF7 };
+/* Image processor I2C line, this is driven by image processor firmware */
+static const unsigned ipi2c_a_1_pins[] = { DB8540_PIN_AG5, DB8540_PIN_AH5 };
+static const unsigned ipi2c_a_2_pins[] = { DB8540_PIN_AE4, DB8540_PIN_AD1 };
+/* MSP0 can only be on these pins, but TXD and RXD can be flipped */
+static const unsigned msp0txrx_a_1_pins[] = { DB8540_PIN_AD2, DB8540_PIN_AC3 };
+static const unsigned msp0tfstck_a_1_pins[] = { DB8540_PIN_AC2,
+	DB8540_PIN_AC4 };
+static const unsigned msp0rfsrck_a_1_pins[] = { DB8540_PIN_AH7,
+	DB8540_PIN_AE7 };
+/* Basic pins of the MMC/SD card 0 interface */
+static const unsigned mc0_a_1_pins[] = { DB8540_PIN_AH11, DB8540_PIN_AG11,
+	DB8540_PIN_AF11, DB8540_PIN_AH10, DB8540_PIN_AG10, DB8540_PIN_AF10};
+/* MSP1 can only be on these pins, but TXD and RXD can be flipped */
+static const unsigned msp1txrx_a_1_pins[] = { DB8540_PIN_AD4, DB8540_PIN_AG4 };
+static const unsigned msp1_a_1_pins[] = { DB8540_PIN_AF3, DB8540_PIN_AF5 };
+
+static const unsigned modobsclk_a_1_pins[] = { DB8540_PIN_AF9 };
+static const unsigned clkoutreq_a_1_pins[] = { DB8540_PIN_AE8 };
+/* LCD interface */
+static const unsigned lcdb_a_1_pins[] = { DB8540_PIN_M26, DB8540_PIN_M25,
+	DB8540_PIN_M27, DB8540_PIN_N25 };
+static const unsigned lcdvsi0_a_1_pins[] = { DB8540_PIN_AJ24 };
+static const unsigned lcdvsi1_a_1_pins[] = { DB8540_PIN_AE21 };
+static const unsigned lcd_d0_d7_a_1_pins[] = { DB8540_PIN_M28, DB8540_PIN_N26,
+	DB8540_PIN_M22, DB8540_PIN_N22, DB8540_PIN_N27, DB8540_PIN_N28,
+	DB8540_PIN_P22, DB8540_PIN_P28 };
+/* D8 thru D11 often used as TVOUT lines */
+static const unsigned lcd_d8_d11_a_1_pins[] = { DB8540_PIN_P26, DB8540_PIN_T22,
+	DB8540_PIN_R27, DB8540_PIN_P27 };
+static const unsigned lcd_d12_d23_a_1_pins[] = { DB8540_PIN_R26, DB8540_PIN_R25,
+	DB8540_PIN_U22, DB8540_PIN_T27, DB8540_PIN_AG22, DB8540_PIN_AF21,
+	DB8540_PIN_AF24, DB8540_PIN_AH22, DB8540_PIN_AJ23, DB8540_PIN_AH21,
+	DB8540_PIN_AG20, DB8540_PIN_AE23 };
+static const unsigned kp_a_1_pins[] = { DB8540_PIN_AH20, DB8540_PIN_AG19,
+	DB8540_PIN_AF22, DB8540_PIN_AJ21, DB8540_PIN_T25, DB8540_PIN_T26 };
+/* MC2 has 8 data lines and no direction control, so only for (e)MMC */
+static const unsigned mc2_a_1_pins[] = { DB8540_PIN_AC27, DB8540_PIN_AD27,
+	DB8540_PIN_AE28, DB8540_PIN_AG26, DB8540_PIN_AF25, DB8540_PIN_AE27,
+	DB8540_PIN_AF27, DB8540_PIN_AG28, DB8540_PIN_AF28, DB8540_PIN_AG25,
+	DB8540_PIN_AG24 };
+static const unsigned ssp1_a_1_pins[] = {  DB8540_PIN_AD25, DB8540_PIN_AH25,
+	DB8540_PIN_AF26, DB8540_PIN_AF23 };
+static const unsigned ssp0_a_1_pins[] = { DB8540_PIN_AG23, DB8540_PIN_AE25,
+	DB8540_PIN_AH24, DB8540_PIN_AJ25 };
+static const unsigned i2c0_a_1_pins[] = { DB8540_PIN_AG27, DB8540_PIN_AH23 };
+/*
+ * Image processor GPIO pins are named "ipgpio" and have their own
+ * numberspace
+ */
+static const unsigned ipgpio0_a_1_pins[] = { DB8540_PIN_AE26 };
+static const unsigned ipgpio1_a_1_pins[] = { DB8540_PIN_AE24 };
+/* modem i2s interface */
+static const unsigned modi2s_a_1_pins[] = { DB8540_PIN_AD26, DB8540_PIN_AD28,
+	DB8540_PIN_AC28, DB8540_PIN_AC26 };
+static const unsigned spi2_a_1_pins[] = { DB8540_PIN_AF20, DB8540_PIN_AG21,
+	DB8540_PIN_AH19, DB8540_PIN_AE19 };
+static const unsigned u2txrx_a_1_pins[] = { DB8540_PIN_AG18, DB8540_PIN_AH17 };
+static const unsigned u2ctsrts_a_1_pins[] = { DB8540_PIN_AF19,
+	DB8540_PIN_AF18 };
+static const unsigned modsmb_a_1_pins[] = { DB8540_PIN_AF17, DB8540_PIN_AE17 };
+static const unsigned msp2sck_a_1_pins[] = { DB8540_PIN_J3 };
+static const unsigned msp2txdtcktfs_a_1_pins[] = { DB8540_PIN_H1, DB8540_PIN_J2,
+	DB8540_PIN_H2 };
+static const unsigned msp2rxd_a_1_pins[] = { DB8540_PIN_H3 };
+static const unsigned mc4_a_1_pins[] = { DB8540_PIN_H4, DB8540_PIN_G2,
+	DB8540_PIN_G3, DB8540_PIN_G4, DB8540_PIN_F2, DB8540_PIN_C6,
+	DB8540_PIN_B6, DB8540_PIN_B7, DB8540_PIN_A7, DB8540_PIN_D7,
+	DB8540_PIN_D8 };
+static const unsigned mc1_a_1_pins[] = { DB8540_PIN_F3, DB8540_PIN_E2,
+	DB8540_PIN_C7, DB8540_PIN_B8, DB8540_PIN_C10, DB8540_PIN_C8,
+	DB8540_PIN_C9 };
+/* mc1_a_2_pins exclude MC1_FBCLK */
+static const unsigned mc1_a_2_pins[] = { DB8540_PIN_F3,	DB8540_PIN_C7,
+	DB8540_PIN_B8, DB8540_PIN_C10, DB8540_PIN_C8,
+	DB8540_PIN_C9 };
+static const unsigned hsir_a_1_pins[] = { DB8540_PIN_B9, DB8540_PIN_A10,
+	DB8540_PIN_D9 };
+static const unsigned hsit_a_1_pins[] = { DB8540_PIN_B11, DB8540_PIN_B10,
+	DB8540_PIN_E10, DB8540_PIN_B12, DB8540_PIN_D10 };
+static const unsigned hsit_a_2_pins[] = { DB8540_PIN_B11, DB8540_PIN_B10,
+	DB8540_PIN_E10, DB8540_PIN_B12 };
+static const unsigned clkout_a_1_pins[] = { DB8540_PIN_D11, DB8540_PIN_AJ6 };
+static const unsigned clkout_a_2_pins[] = { DB8540_PIN_B13, DB8540_PIN_C12 };
+static const unsigned msp4_a_1_pins[] = { DB8540_PIN_B14, DB8540_PIN_E11 };
+static const unsigned usb_a_1_pins[] = { DB8540_PIN_D12, DB8540_PIN_D15,
+	DB8540_PIN_C13, DB8540_PIN_C14, DB8540_PIN_C18, DB8540_PIN_C16,
+	DB8540_PIN_B16, DB8540_PIN_D18, DB8540_PIN_C15, DB8540_PIN_C17,
+	DB8540_PIN_B17, DB8540_PIN_D17 };
+/* Altfunction B colum */
+static const unsigned apetrig_b_1_pins[] = { DB8540_PIN_AH6, DB8540_PIN_AG7 };
+static const unsigned modtrig_b_1_pins[] = { DB8540_PIN_AF2, DB8540_PIN_AD3 };
+static const unsigned i2c4_b_1_pins[] = { DB8540_PIN_AF6, DB8540_PIN_AG6 };
+static const unsigned i2c1_b_1_pins[] = { DB8540_PIN_AD5, DB8540_PIN_AF7 };
+static const unsigned i2c2_b_1_pins[] = { DB8540_PIN_AG5, DB8540_PIN_AH5 };
+static const unsigned i2c2_b_2_pins[] = { DB8540_PIN_AE4, DB8540_PIN_AD1 };
+static const unsigned msp0txrx_b_1_pins[] = { DB8540_PIN_AD2, DB8540_PIN_AC3 };
+static const unsigned i2c1_b_2_pins[] = { DB8540_PIN_AH7, DB8540_PIN_AE7 };
+static const unsigned stmmod_b_1_pins[] = { DB8540_PIN_AH11, DB8540_PIN_AF11,
+	DB8540_PIN_AH10, DB8540_PIN_AG10, DB8540_PIN_AF10 };
+static const unsigned moduartstmmux_b_1_pins[] = { DB8540_PIN_AG11 };
+static const unsigned msp1txrx_b_1_pins[] = { DB8540_PIN_AD4, DB8540_PIN_AG4 };
+static const unsigned kp_b_1_pins[] = { DB8540_PIN_AJ24, DB8540_PIN_AE21,
+	DB8540_PIN_M26, DB8540_PIN_M25, DB8540_PIN_M27, DB8540_PIN_N25,
+	DB8540_PIN_M28, DB8540_PIN_N26, DB8540_PIN_M22, DB8540_PIN_N22,
+	DB8540_PIN_N27, DB8540_PIN_N28, DB8540_PIN_P22, DB8540_PIN_P28,
+	DB8540_PIN_P26, DB8540_PIN_T22, DB8540_PIN_R27, DB8540_PIN_P27,
+	DB8540_PIN_R26, DB8540_PIN_R25 };
+static const unsigned u2txrx_b_1_pins[] = { DB8540_PIN_U22, DB8540_PIN_T27 };
+static const unsigned sm_b_1_pins[] = { DB8540_PIN_AG22, DB8540_PIN_AF21,
+	DB8540_PIN_AF24, DB8540_PIN_AH22, DB8540_PIN_AJ23, DB8540_PIN_AH21,
+	DB8540_PIN_AG20, DB8540_PIN_AE23, DB8540_PIN_AH20, DB8540_PIN_AF22,
+	DB8540_PIN_AJ21, DB8540_PIN_AC27, DB8540_PIN_AD27, DB8540_PIN_AE28,
+	DB8540_PIN_AG26, DB8540_PIN_AF25, DB8540_PIN_AE27, DB8540_PIN_AF27,
+	DB8540_PIN_AG28, DB8540_PIN_AF28, DB8540_PIN_AG25, DB8540_PIN_AG24,
+	DB8540_PIN_AD25 };
+static const unsigned smcs0_b_1_pins[] = { DB8540_PIN_AG19 };
+static const unsigned smcs1_b_1_pins[] = { DB8540_PIN_AE26 };
+static const unsigned ipgpio7_b_1_pins[] = { DB8540_PIN_AH25 };
+static const unsigned ipgpio2_b_1_pins[] = { DB8540_PIN_AF26 };
+static const unsigned ipgpio3_b_1_pins[] = { DB8540_PIN_AF23 };
+static const unsigned i2c6_b_1_pins[] = { DB8540_PIN_AG23, DB8540_PIN_AE25 };
+static const unsigned i2c5_b_1_pins[] = { DB8540_PIN_AH24, DB8540_PIN_AJ25 };
+static const unsigned u3txrx_b_1_pins[] = { DB8540_PIN_AF20, DB8540_PIN_AG21 };
+static const unsigned u3ctsrts_b_1_pins[] = { DB8540_PIN_AH19,
+	DB8540_PIN_AE19 };
+static const unsigned i2c5_b_2_pins[] = { DB8540_PIN_AG18, DB8540_PIN_AH17 };
+static const unsigned i2c4_b_2_pins[] = { DB8540_PIN_AF19, DB8540_PIN_AF18 };
+static const unsigned u4txrx_b_1_pins[] = { DB8540_PIN_AE18, DB8540_PIN_AG17 };
+static const unsigned u4ctsrts_b_1_pins[] = { DB8540_PIN_AF17,
+	DB8540_PIN_AE17 };
+static const unsigned ddrtrig_b_1_pins[] = { DB8540_PIN_J3 };
+static const unsigned msp4_b_1_pins[] = { DB8540_PIN_H3 };
+static const unsigned pwl_b_1_pins[] = { DB8540_PIN_C6 };
+static const unsigned spi1_b_1_pins[] = { DB8540_PIN_E2, DB8540_PIN_C10,
+	DB8540_PIN_C8, DB8540_PIN_C9 };
+static const unsigned mc3_b_1_pins[] = { DB8540_PIN_B9, DB8540_PIN_A10,
+	DB8540_PIN_D9, DB8540_PIN_B11, DB8540_PIN_B10, DB8540_PIN_E10,
+	DB8540_PIN_B12 };
+static const unsigned pwl_b_2_pins[] = { DB8540_PIN_D10 };
+static const unsigned pwl_b_3_pins[] = { DB8540_PIN_B13 };
+static const unsigned pwl_b_4_pins[] = { DB8540_PIN_C12 };
+static const unsigned u2txrx_b_2_pins[] = { DB8540_PIN_B17, DB8540_PIN_D17 };
+
+/* Altfunction C column */
+static const unsigned ipgpio6_c_1_pins[] = { DB8540_PIN_AG6 };
+static const unsigned ipgpio0_c_1_pins[] = { DB8540_PIN_AD5 };
+static const unsigned ipgpio1_c_1_pins[] = { DB8540_PIN_AF7 };
+static const unsigned ipgpio3_c_1_pins[] = { DB8540_PIN_AE4 };
+static const unsigned ipgpio2_c_1_pins[] = { DB8540_PIN_AD1 };
+static const unsigned u0_c_1_pins[] = { DB8540_PIN_AD4, DB8540_PIN_AF3,
+	DB8540_PIN_AF5, DB8540_PIN_AG4 };
+static const unsigned smcleale_c_1_pins[] = { DB8540_PIN_AJ24,
+	DB8540_PIN_AE21 };
+static const unsigned ipgpio4_c_1_pins[] = { DB8540_PIN_M26 };
+static const unsigned ipgpio5_c_1_pins[] = { DB8540_PIN_M25 };
+static const unsigned ipgpio6_c_2_pins[] = { DB8540_PIN_M27 };
+static const unsigned ipgpio7_c_1_pins[] = { DB8540_PIN_N25 };
+static const unsigned stmape_c_1_pins[] = { DB8540_PIN_M28, DB8540_PIN_N26,
+	DB8540_PIN_M22, DB8540_PIN_N22, DB8540_PIN_N27 };
+static const unsigned u2rxtx_c_1_pins[] = { DB8540_PIN_N28, DB8540_PIN_P22 };
+static const unsigned modobsresout_c_1_pins[] = { DB8540_PIN_P28 };
+static const unsigned ipgpio2_c_2_pins[] = { DB8540_PIN_P26 };
+static const unsigned ipgpio3_c_2_pins[] = { DB8540_PIN_T22 };
+static const unsigned ipgpio4_c_2_pins[] = { DB8540_PIN_R27 };
+static const unsigned ipgpio5_c_2_pins[] = { DB8540_PIN_P27 };
+static const unsigned modaccgpo_c_1_pins[] = { DB8540_PIN_R26, DB8540_PIN_R25,
+	DB8540_PIN_U22 };
+static const unsigned modobspwrrst_c_1_pins[] = { DB8540_PIN_T27 };
+static const unsigned mc5_c_1_pins[] = { DB8540_PIN_AG22, DB8540_PIN_AF21,
+	DB8540_PIN_AF24, DB8540_PIN_AH22, DB8540_PIN_AJ23, DB8540_PIN_AH21,
+	DB8540_PIN_AG20, DB8540_PIN_AE23, DB8540_PIN_AH20, DB8540_PIN_AF22,
+	DB8540_PIN_AJ21};
+static const unsigned smps0_c_1_pins[] = { DB8540_PIN_AG19 };
+static const unsigned moduart1_c_1_pins[] = { DB8540_PIN_T25, DB8540_PIN_T26 };
+static const unsigned mc2rstn_c_1_pins[] = { DB8540_PIN_AE28 };
+static const unsigned i2c5_c_1_pins[] = { DB8540_PIN_AG28, DB8540_PIN_AF28 };
+static const unsigned ipgpio0_c_2_pins[] = { DB8540_PIN_AG25 };
+static const unsigned ipgpio1_c_2_pins[] = { DB8540_PIN_AG24 };
+static const unsigned kp_c_1_pins[] = { DB8540_PIN_AD25, DB8540_PIN_AH25,
+	DB8540_PIN_AF26, DB8540_PIN_AF23 };
+static const unsigned modrf_c_1_pins[] = { DB8540_PIN_AG23, DB8540_PIN_AE25,
+	DB8540_PIN_AH24 };
+static const unsigned smps1_c_1_pins[] = { DB8540_PIN_AE26 };
+static const unsigned i2c5_c_2_pins[] = { DB8540_PIN_AH19, DB8540_PIN_AE19 };
+static const unsigned u4ctsrts_c_1_pins[] = { DB8540_PIN_AG18,
+	DB8540_PIN_AH17 };
+static const unsigned u3rxtx_c_1_pins[] = { DB8540_PIN_AF19, DB8540_PIN_AF18 };
+static const unsigned msp4_c_1_pins[] = { DB8540_PIN_J3 };
+static const unsigned mc4rstn_c_1_pins[] = { DB8540_PIN_C6 };
+static const unsigned spi0_c_1_pins[] = { DB8540_PIN_A10, DB8540_PIN_B10,
+	DB8540_PIN_E10, DB8540_PIN_B12 };
+static const unsigned i2c3_c_1_pins[] = { DB8540_PIN_B13, DB8540_PIN_C12 };
+
+/* Other alt C1 column */
+static const unsigned spi3_oc1_1_pins[] = { DB8540_PIN_AG5, DB8540_PIN_AH5,
+	DB8540_PIN_AE4, DB8540_PIN_AD1 };
+static const unsigned stmape_oc1_1_pins[] = { DB8540_PIN_AH11, DB8540_PIN_AF11,
+	DB8540_PIN_AH10, DB8540_PIN_AG10, DB8540_PIN_AF10 };
+static const unsigned u2_oc1_1_pins[] = { DB8540_PIN_AG11 };
+static const unsigned remap0_oc1_1_pins[] = { DB8540_PIN_AJ24 };
+static const unsigned remap1_oc1_1_pins[] = { DB8540_PIN_AE21 };
+static const unsigned modobsrefclk_oc1_1_pins[] = { DB8540_PIN_M26 };
+static const unsigned modobspwrctrl_oc1_1_pins[] = { DB8540_PIN_M25 };
+static const unsigned modobsclkout_oc1_1_pins[] = { DB8540_PIN_M27 };
+static const unsigned moduart1_oc1_1_pins[] = { DB8540_PIN_N25 };
+static const unsigned modprcmudbg_oc1_1_pins[] = { DB8540_PIN_M28,
+	DB8540_PIN_N26, DB8540_PIN_M22, DB8540_PIN_N22, DB8540_PIN_N27,
+	DB8540_PIN_P22, DB8540_PIN_P28, DB8540_PIN_P26, DB8540_PIN_T22,
+	DB8540_PIN_R26, DB8540_PIN_R25, DB8540_PIN_U22, DB8540_PIN_T27,
+	DB8540_PIN_AH20, DB8540_PIN_AG19, DB8540_PIN_AF22, DB8540_PIN_AJ21,
+	DB8540_PIN_T25};
+static const unsigned modobsresout_oc1_1_pins[] = { DB8540_PIN_N28 };
+static const unsigned modaccgpo_oc1_1_pins[] = { DB8540_PIN_R27, DB8540_PIN_P27,
+	DB8540_PIN_T26 };
+static const unsigned kp_oc1_1_pins[] = { DB8540_PIN_AG22, DB8540_PIN_AF21,
+	DB8540_PIN_AF24, DB8540_PIN_AH22, DB8540_PIN_AJ23, DB8540_PIN_AH21,
+	DB8540_PIN_AG20, DB8540_PIN_AE23 };
+static const unsigned modxmip_oc1_1_pins[] = { DB8540_PIN_AD25, DB8540_PIN_AH25,
+	DB8540_PIN_AG23, DB8540_PIN_AE25 };
+static const unsigned i2c6_oc1_1_pins[] = { DB8540_PIN_AE26, DB8540_PIN_AE24 };
+static const unsigned u2txrx_oc1_1_pins[] = { DB8540_PIN_B7, DB8540_PIN_A7 };
+static const unsigned u2ctsrts_oc1_1_pins[] = { DB8540_PIN_D7, DB8540_PIN_D8 };
+
+/* Other alt C2 column */
+static const unsigned sbag_oc2_1_pins[] = { DB8540_PIN_AH11, DB8540_PIN_AG11,
+	DB8540_PIN_AF11, DB8540_PIN_AH10, DB8540_PIN_AG10, DB8540_PIN_AF10 };
+static const unsigned hxclk_oc2_1_pins[] = { DB8540_PIN_M25 };
+static const unsigned modaccuart_oc2_1_pins[] = { DB8540_PIN_N25 };
+static const unsigned stmmod_oc2_1_pins[] = { DB8540_PIN_M28, DB8540_PIN_N26,
+	DB8540_PIN_M22, DB8540_PIN_N22, DB8540_PIN_N27 };
+static const unsigned moduartstmmux_oc2_1_pins[] = { DB8540_PIN_N28 };
+static const unsigned hxgpio_oc2_1_pins[] = { DB8540_PIN_P22, DB8540_PIN_P28,
+	DB8540_PIN_P26, DB8540_PIN_T22, DB8540_PIN_R27, DB8540_PIN_P27,
+	DB8540_PIN_R26, DB8540_PIN_R25 };
+static const unsigned sbag_oc2_2_pins[] = { DB8540_PIN_U22, DB8540_PIN_T27,
+	DB8540_PIN_AG22, DB8540_PIN_AF21, DB8540_PIN_AF24, DB8540_PIN_AH22 };
+static const unsigned modobsservice_oc2_1_pins[] = { DB8540_PIN_AJ23 };
+static const unsigned moduart0_oc2_1_pins[] = { DB8540_PIN_AG20,
+	DB8540_PIN_AE23 };
+static const unsigned stmape_oc2_1_pins[] = { DB8540_PIN_AH20, DB8540_PIN_AG19,
+	DB8540_PIN_AF22, DB8540_PIN_AJ21, DB8540_PIN_T25 };
+static const unsigned u2_oc2_1_pins[] = { DB8540_PIN_T26, DB8540_PIN_AH21 };
+static const unsigned modxmip_oc2_1_pins[] = { DB8540_PIN_AE26,
+	DB8540_PIN_AE24 };
+
+/* Other alt C3 column */
+static const unsigned modaccgpo_oc3_1_pins[] = { DB8540_PIN_AG11 };
+static const unsigned tpui_oc3_1_pins[] = { DB8540_PIN_M26, DB8540_PIN_M25,
+	DB8540_PIN_M27, DB8540_PIN_N25, DB8540_PIN_M28, DB8540_PIN_N26,
+	DB8540_PIN_M22, DB8540_PIN_N22, DB8540_PIN_N27, DB8540_PIN_N28,
+	DB8540_PIN_P22, DB8540_PIN_P28, DB8540_PIN_P26, DB8540_PIN_T22,
+	DB8540_PIN_R27, DB8540_PIN_P27, DB8540_PIN_R26, DB8540_PIN_R25,
+	DB8540_PIN_U22, DB8540_PIN_T27, DB8540_PIN_AG22, DB8540_PIN_AF21,
+	DB8540_PIN_AF24, DB8540_PIN_AH22, DB8540_PIN_AJ23, DB8540_PIN_AH21,
+	DB8540_PIN_AG20, DB8540_PIN_AE23, DB8540_PIN_AH20, DB8540_PIN_AG19,
+	DB8540_PIN_AF22, DB8540_PIN_AJ21, DB8540_PIN_T25, DB8540_PIN_T26 };
+
+/* Other alt C4 column */
+static const unsigned hwobs_oc4_1_pins[] = { DB8540_PIN_M26, DB8540_PIN_M25,
+	DB8540_PIN_M27, DB8540_PIN_N25, DB8540_PIN_M28, DB8540_PIN_N26,
+	DB8540_PIN_M22, DB8540_PIN_N22, DB8540_PIN_N27, DB8540_PIN_N28,
+	DB8540_PIN_P22, DB8540_PIN_P28, DB8540_PIN_P26, DB8540_PIN_T22,
+	DB8540_PIN_R27, DB8540_PIN_P27, DB8540_PIN_R26, DB8540_PIN_R25 };
+static const unsigned moduart1txrx_oc4_1_pins[] = { DB8540_PIN_U22,
+	DB8540_PIN_T27 };
+static const unsigned moduart1rtscts_oc4_1_pins[] = { DB8540_PIN_AG22,
+	DB8540_PIN_AF21 };
+static const unsigned modaccuarttxrx_oc4_1_pins[] = { DB8540_PIN_AF24,
+	DB8540_PIN_AH22 };
+static const unsigned modaccuartrtscts_oc4_1_pins[] = { DB8540_PIN_AJ23,
+	DB8540_PIN_AH21 };
+static const unsigned stmmod_oc4_1_pins[] = { DB8540_PIN_AH20, DB8540_PIN_AG19,
+	DB8540_PIN_AF22, DB8540_PIN_AJ21, DB8540_PIN_T25 };
+static const unsigned moduartstmmux_oc4_1_pins[] = { DB8540_PIN_T26 };
+
+#define DB8540_PIN_GROUP(a, b) { .name = #a, .pins = a##_pins,		\
+			.npins = ARRAY_SIZE(a##_pins), .altsetting = b }
+
+static const struct nmk_pingroup nmk_db8540_groups[] = {
+	/* Altfunction A column */
+	DB8540_PIN_GROUP(u0_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(u1rxtx_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(u1ctsrts_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(ipi2c_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(ipi2c_a_2, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp0txrx_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp0tfstck_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp0rfsrck_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(mc0_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp1txrx_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp1_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(modobsclk_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(clkoutreq_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(lcdb_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(lcdvsi0_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(lcdvsi1_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(lcd_d0_d7_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(lcd_d8_d11_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(lcd_d12_d23_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(kp_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(mc2_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(ssp1_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(ssp0_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(ipgpio0_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(ipgpio1_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(modi2s_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(spi2_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(u2txrx_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(u2ctsrts_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(modsmb_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp2sck_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp2txdtcktfs_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp2rxd_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(mc4_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(mc1_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(hsir_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(hsit_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(hsit_a_2, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(clkout_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(clkout_a_2, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(msp4_a_1, NMK_GPIO_ALT_A),
+	DB8540_PIN_GROUP(usb_a_1, NMK_GPIO_ALT_A),
+	/* Altfunction B column */
+	DB8540_PIN_GROUP(apetrig_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(modtrig_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c4_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c1_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c2_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c2_b_2, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(msp0txrx_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c1_b_2, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(stmmod_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(moduartstmmux_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(msp1txrx_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(kp_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(u2txrx_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(sm_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(smcs0_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(smcs1_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(ipgpio7_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(ipgpio2_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(ipgpio3_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c6_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c5_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(u3txrx_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(u3ctsrts_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c5_b_2, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(i2c4_b_2, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(u4txrx_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(u4ctsrts_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(ddrtrig_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(msp4_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(pwl_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(spi1_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(mc3_b_1, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(pwl_b_2, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(pwl_b_3, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(pwl_b_4, NMK_GPIO_ALT_B),
+	DB8540_PIN_GROUP(u2txrx_b_2, NMK_GPIO_ALT_B),
+	/* Altfunction C column */
+	DB8540_PIN_GROUP(ipgpio6_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio0_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio1_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio3_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio2_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u0_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(smcleale_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio4_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio5_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio6_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio7_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(stmape_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u2rxtx_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobsresout_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio2_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio3_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio4_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio5_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modaccgpo_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobspwrrst_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(mc5_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(smps0_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(moduart1_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(mc2rstn_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(i2c5_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio0_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(ipgpio1_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(kp_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modrf_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(smps1_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(i2c5_c_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u4ctsrts_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u3rxtx_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(msp4_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(mc4rstn_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(spi0_c_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(i2c3_c_1, NMK_GPIO_ALT_C),
+
+	/* Other alt C1 column, these are still configured as alt C */
+	DB8540_PIN_GROUP(spi3_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(stmape_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u2_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(remap0_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(remap1_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobsrefclk_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobspwrctrl_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobsclkout_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(moduart1_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modprcmudbg_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobsresout_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modaccgpo_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(kp_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modxmip_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(i2c6_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u2txrx_oc1_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u2ctsrts_oc1_1, NMK_GPIO_ALT_C),
+
+	/* Other alt C2 column, these are still configured as alt C */
+	DB8540_PIN_GROUP(sbag_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(hxclk_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modaccuart_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(stmmod_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(moduartstmmux_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(hxgpio_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(sbag_oc2_2, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modobsservice_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(moduart0_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(stmape_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(u2_oc2_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modxmip_oc2_1, NMK_GPIO_ALT_C),
+
+	/* Other alt C3 column, these are still configured as alt C */
+	DB8540_PIN_GROUP(modaccgpo_oc3_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(tpui_oc3_1, NMK_GPIO_ALT_C),
+
+	/* Other alt C4 column, these are still configured as alt C */
+	DB8540_PIN_GROUP(hwobs_oc4_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(moduart1txrx_oc4_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(moduart1rtscts_oc4_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modaccuarttxrx_oc4_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(modaccuartrtscts_oc4_1, NMK_GPIO_ALT_C),
+	DB8540_PIN_GROUP(stmmod_oc4_1, NMK_GPIO_ALT_C),
+
+};
+
+/* We use this macro to define the groups applicable to a function */
+#define DB8540_FUNC_GROUPS(a, b...)	   \
+static const char * const a##_groups[] = { b };
+
+DB8540_FUNC_GROUPS(apetrig, "apetrig_b_1");
+DB8540_FUNC_GROUPS(clkout, "clkoutreq_a_1", "clkout_a_1", "clkout_a_2");
+DB8540_FUNC_GROUPS(ddrtrig, "ddrtrig_b_1");
+DB8540_FUNC_GROUPS(hsi, "hsir_a_1", "hsit_a_1", "hsit_a_2");
+DB8540_FUNC_GROUPS(hwobs, "hwobs_oc4_1");
+DB8540_FUNC_GROUPS(hx, "hxclk_oc2_1", "hxgpio_oc2_1");
+DB8540_FUNC_GROUPS(i2c0, "i2c0_a_1");
+DB8540_FUNC_GROUPS(i2c1, "i2c1_b_1", "i2c1_b_2");
+DB8540_FUNC_GROUPS(i2c2, "i2c2_b_1", "i2c2_b_2");
+DB8540_FUNC_GROUPS(i2c3, "i2c3_c_1", "i2c4_b_1");
+DB8540_FUNC_GROUPS(i2c4, "i2c4_b_2");
+DB8540_FUNC_GROUPS(i2c5, "i2c5_b_1", "i2c5_b_2", "i2c5_c_1", "i2c5_c_2");
+DB8540_FUNC_GROUPS(i2c6, "i2c6_b_1", "i2c6_oc1_1");
+/* The image processor has 8 GPIO pins that can be muxed out */
+DB8540_FUNC_GROUPS(ipgpio, "ipgpio0_a_1", "ipgpio0_c_1", "ipgpio0_c_2",
+		"ipgpio1_a_1", "ipgpio1_c_1", "ipgpio1_c_2",
+		"ipgpio2_b_1", "ipgpio2_c_1", "ipgpio2_c_2",
+		"ipgpio3_b_1", "ipgpio3_c_1", "ipgpio3_c_2",
+		"ipgpio4_c_1", "ipgpio4_c_2",
+		"ipgpio5_c_1", "ipgpio5_c_2",
+		"ipgpio6_c_1", "ipgpio6_c_2",
+		"ipgpio7_b_1", "ipgpio7_c_1");
+DB8540_FUNC_GROUPS(ipi2c, "ipi2c_a_1", "ipi2c_a_2");
+DB8540_FUNC_GROUPS(kp, "kp_a_1", "kp_b_1", "kp_c_1", "kp_oc1_1");
+DB8540_FUNC_GROUPS(lcd, "lcd_d0_d7_a_1", "lcd_d12_d23_a_1", "lcd_d8_d11_a_1",
+		"lcdvsi0_a_1", "lcdvsi1_a_1");
+DB8540_FUNC_GROUPS(lcdb, "lcdb_a_1");
+DB8540_FUNC_GROUPS(mc0, "mc0_a_1");
+DB8540_FUNC_GROUPS(mc1, "mc1_a_1", "mc1_a_2");
+DB8540_FUNC_GROUPS(mc2, "mc2_a_1", "mc2rstn_c_1");
+DB8540_FUNC_GROUPS(mc3, "mc3_b_1");
+DB8540_FUNC_GROUPS(mc4, "mc4_a_1", "mc4rstn_c_1");
+DB8540_FUNC_GROUPS(mc5, "mc5_c_1");
+DB8540_FUNC_GROUPS(modaccgpo, "modaccgpo_c_1", "modaccgpo_oc1_1",
+		"modaccgpo_oc3_1");
+DB8540_FUNC_GROUPS(modaccuart, "modaccuart_oc2_1", "modaccuarttxrx_oc4_1",
+		"modaccuartrtccts_oc4_1");
+DB8540_FUNC_GROUPS(modi2s, "modi2s_a_1");
+DB8540_FUNC_GROUPS(modobs, "modobsclk_a_1", "modobsclkout_oc1_1",
+		"modobspwrctrl_oc1_1", "modobspwrrst_c_1",
+		"modobsrefclk_oc1_1", "modobsresout_c_1",
+		"modobsresout_oc1_1", "modobsservice_oc2_1");
+DB8540_FUNC_GROUPS(modprcmudbg, "modprcmudbg_oc1_1");
+DB8540_FUNC_GROUPS(modrf, "modrf_c_1");
+DB8540_FUNC_GROUPS(modsmb, "modsmb_a_1");
+DB8540_FUNC_GROUPS(modtrig, "modtrig_b_1");
+DB8540_FUNC_GROUPS(moduart, "moduart1_c_1", "moduart1_oc1_1",
+		"moduart1txrx_oc4_1", "moduart1rtscts_oc4_1", "moduart0_oc2_1");
+DB8540_FUNC_GROUPS(moduartstmmux, "moduartstmmux_b_1", "moduartstmmux_oc2_1",
+		"moduartstmmux_oc4_1");
+DB8540_FUNC_GROUPS(modxmip, "modxmip_oc1_1", "modxmip_oc2_1");
+/*
+ * MSP0 can only be on a certain set of pins, but the TX/RX pins can be
+ * switched around by selecting the altfunction A or B.
+ */
+DB8540_FUNC_GROUPS(msp0, "msp0rfsrck_a_1", "msp0tfstck_a_1", "msp0txrx_a_1",
+		"msp0txrx_b_1");
+DB8540_FUNC_GROUPS(msp1, "msp1_a_1", "msp1txrx_a_1", "msp1txrx_b_1");
+DB8540_FUNC_GROUPS(msp2, "msp2sck_a_1", "msp2txdtcktfs_a_1", "msp2rxd_a_1");
+DB8540_FUNC_GROUPS(msp4, "msp4_a_1", "msp4_b_1", "msp4_c_1");
+DB8540_FUNC_GROUPS(pwl, "pwl_b_1", "pwl_b_2", "pwl_b_3", "pwl_b_4");
+DB8540_FUNC_GROUPS(remap, "remap0_oc1_1", "remap1_oc1_1");
+DB8540_FUNC_GROUPS(sbag, "sbag_oc2_1", "sbag_oc2_2");
+/* Select between CS0 on alt B or PS1 on alt C */
+DB8540_FUNC_GROUPS(sm, "sm_b_1", "smcleale_c_1", "smcs0_b_1", "smcs1_b_1",
+		"smps0_c_1", "smps1_c_1");
+DB8540_FUNC_GROUPS(spi0, "spi0_c_1");
+DB8540_FUNC_GROUPS(spi1, "spi1_b_1");
+DB8540_FUNC_GROUPS(spi2, "spi2_a_1");
+DB8540_FUNC_GROUPS(spi3, "spi3_oc1_1");
+DB8540_FUNC_GROUPS(ssp0, "ssp0_a_1");
+DB8540_FUNC_GROUPS(ssp1, "ssp1_a_1");
+DB8540_FUNC_GROUPS(stmape, "stmape_c_1", "stmape_oc1_1", "stmape_oc2_1");
+DB8540_FUNC_GROUPS(stmmod, "stmmod_b_1", "stmmod_oc2_1", "stmmod_oc4_1");
+DB8540_FUNC_GROUPS(tpui, "tpui_oc3_1");
+DB8540_FUNC_GROUPS(u0, "u0_a_1", "u0_c_1");
+DB8540_FUNC_GROUPS(u1, "u1ctsrts_a_1", "u1rxtx_a_1");
+DB8540_FUNC_GROUPS(u2, "u2_oc1_1", "u2_oc2_1", "u2ctsrts_a_1", "u2ctsrts_oc1_1",
+		"u2rxtx_c_1", "u2txrx_a_1", "u2txrx_b_1", "u2txrx_b_2",
+		"u2txrx_oc1_1");
+DB8540_FUNC_GROUPS(u3, "u3ctsrts_b_1", "u3rxtx_c_1", "u3txrxa_b_1");
+DB8540_FUNC_GROUPS(u4, "u4ctsrts_b_1", "u4ctsrts_c_1", "u4txrx_b_1");
+DB8540_FUNC_GROUPS(usb, "usb_a_1");
+
+
+#define FUNCTION(fname)					\
+	{						\
+		.name = #fname,				\
+		.groups = fname##_groups,		\
+		.ngroups = ARRAY_SIZE(fname##_groups),	\
+	}
+
+static const struct nmk_function nmk_db8540_functions[] = {
+	FUNCTION(apetrig),
+	FUNCTION(clkout),
+	FUNCTION(ddrtrig),
+	FUNCTION(hsi),
+	FUNCTION(hwobs),
+	FUNCTION(hx),
+	FUNCTION(i2c0),
+	FUNCTION(i2c1),
+	FUNCTION(i2c2),
+	FUNCTION(i2c3),
+	FUNCTION(i2c4),
+	FUNCTION(i2c5),
+	FUNCTION(i2c6),
+	FUNCTION(ipgpio),
+	FUNCTION(ipi2c),
+	FUNCTION(kp),
+	FUNCTION(lcd),
+	FUNCTION(lcdb),
+	FUNCTION(mc0),
+	FUNCTION(mc1),
+	FUNCTION(mc2),
+	FUNCTION(mc3),
+	FUNCTION(mc4),
+	FUNCTION(mc5),
+	FUNCTION(modaccgpo),
+	FUNCTION(modaccuart),
+	FUNCTION(modi2s),
+	FUNCTION(modobs),
+	FUNCTION(modprcmudbg),
+	FUNCTION(modrf),
+	FUNCTION(modsmb),
+	FUNCTION(modtrig),
+	FUNCTION(moduart),
+	FUNCTION(modxmip),
+	FUNCTION(msp0),
+	FUNCTION(msp1),
+	FUNCTION(msp2),
+	FUNCTION(msp4),
+	FUNCTION(pwl),
+	FUNCTION(remap),
+	FUNCTION(sbag),
+	FUNCTION(sm),
+	FUNCTION(spi0),
+	FUNCTION(spi1),
+	FUNCTION(spi2),
+	FUNCTION(spi3),
+	FUNCTION(ssp0),
+	FUNCTION(ssp1),
+	FUNCTION(stmape),
+	FUNCTION(stmmod),
+	FUNCTION(tpui),
+	FUNCTION(u0),
+	FUNCTION(u1),
+	FUNCTION(u2),
+	FUNCTION(u3),
+	FUNCTION(u4),
+	FUNCTION(usb)
+};
+
+static const struct nmk_pinctrl_soc_data nmk_db8540_soc = {
+	.gpio_ranges = nmk_db8540_ranges,
+	.gpio_num_ranges = ARRAY_SIZE(nmk_db8540_ranges),
+	.pins = nmk_db8540_pins,
+	.npins = ARRAY_SIZE(nmk_db8540_pins),
+	.functions = nmk_db8540_functions,
+	.nfunctions = ARRAY_SIZE(nmk_db8540_functions),
+	.groups = nmk_db8540_groups,
+	.ngroups = ARRAY_SIZE(nmk_db8540_groups),
+};
+
+void __devinit
+nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc)
+{
+	*soc = &nmk_db8540_soc;
+}
diff --git a/drivers/pinctrl/pinctrl-nomadik-stn8815.c b/drivers/pinctrl/pinctrl-nomadik-stn8815.c
new file mode 100644
index 00000000000..7d432c3bc35
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-nomadik-stn8815.c
@@ -0,0 +1,357 @@
+#include <linux/kernel.h>
+#include <linux/pinctrl/pinctrl.h>
+#include "pinctrl-nomadik.h"
+
+/* All the pins that can be used for GPIO and some other functions */
+#define _GPIO(offset)		(offset)
+
+#define STN8815_PIN_B4		_GPIO(0)
+#define STN8815_PIN_D5		_GPIO(1)
+#define STN8815_PIN_C5		_GPIO(2)
+#define STN8815_PIN_A4		_GPIO(3)
+#define STN8815_PIN_B5		_GPIO(4)
+#define STN8815_PIN_D6		_GPIO(5)
+#define STN8815_PIN_C6		_GPIO(6)
+#define STN8815_PIN_B6		_GPIO(7)
+#define STN8815_PIN_B10		_GPIO(8)
+#define STN8815_PIN_A10		_GPIO(9)
+#define STN8815_PIN_C11		_GPIO(10)
+#define STN8815_PIN_B11		_GPIO(11)
+#define STN8815_PIN_A11		_GPIO(12)
+#define STN8815_PIN_C12		_GPIO(13)
+#define STN8815_PIN_B12		_GPIO(14)
+#define STN8815_PIN_A12		_GPIO(15)
+#define STN8815_PIN_C13		_GPIO(16)
+#define STN8815_PIN_B13		_GPIO(17)
+#define STN8815_PIN_A13		_GPIO(18)
+#define STN8815_PIN_D13		_GPIO(19)
+#define STN8815_PIN_C14		_GPIO(20)
+#define STN8815_PIN_B14		_GPIO(21)
+#define STN8815_PIN_A14		_GPIO(22)
+#define STN8815_PIN_D15		_GPIO(23)
+#define STN8815_PIN_C15		_GPIO(24)
+#define STN8815_PIN_B15		_GPIO(25)
+#define STN8815_PIN_A15		_GPIO(26)
+#define STN8815_PIN_C16		_GPIO(27)
+#define STN8815_PIN_B16		_GPIO(28)
+#define STN8815_PIN_A16		_GPIO(29)
+#define STN8815_PIN_D17		_GPIO(30)
+#define STN8815_PIN_C17		_GPIO(31)
+#define STN8815_PIN_AB6		_GPIO(32)
+#define STN8815_PIN_AA6		_GPIO(33)
+#define STN8815_PIN_Y6		_GPIO(34)
+#define STN8815_PIN_Y5		_GPIO(35)
+#define STN8815_PIN_AA5		_GPIO(36)
+#define STN8815_PIN_AB5		_GPIO(37)
+#define STN8815_PIN_AB4		_GPIO(38)
+#define STN8815_PIN_Y4		_GPIO(39)
+#define STN8815_PIN_R1		_GPIO(40)
+#define STN8815_PIN_R2		_GPIO(41)
+#define STN8815_PIN_R3		_GPIO(42)
+#define STN8815_PIN_P1		_GPIO(43)
+#define STN8815_PIN_P2		_GPIO(44)
+#define STN8815_PIN_P3		_GPIO(45)
+#define STN8815_PIN_N1		_GPIO(46)
+#define STN8815_PIN_N2		_GPIO(47)
+#define STN8815_PIN_N3		_GPIO(48)
+#define STN8815_PIN_M1		_GPIO(49)
+#define STN8815_PIN_M3		_GPIO(50)
+#define STN8815_PIN_M2		_GPIO(51)
+#define STN8815_PIN_L1		_GPIO(52)
+#define STN8815_PIN_L4		_GPIO(53)
+#define STN8815_PIN_L3		_GPIO(54)
+#define STN8815_PIN_L2		_GPIO(55)
+#define STN8815_PIN_F3		_GPIO(56)
+#define STN8815_PIN_F2		_GPIO(57)
+#define STN8815_PIN_E1		_GPIO(58)
+#define STN8815_PIN_E3		_GPIO(59)
+#define STN8815_PIN_E2		_GPIO(60)
+#define STN8815_PIN_E4		_GPIO(61)
+#define STN8815_PIN_D3		_GPIO(62)
+#define STN8815_PIN_D2		_GPIO(63)
+#define STN8815_PIN_F21		_GPIO(64)
+#define STN8815_PIN_F20		_GPIO(65)
+#define STN8815_PIN_E22		_GPIO(66)
+#define STN8815_PIN_D22		_GPIO(67)
+#define STN8815_PIN_E21		_GPIO(68)
+#define STN8815_PIN_E20		_GPIO(69)
+#define STN8815_PIN_C22		_GPIO(70)
+#define STN8815_PIN_D21		_GPIO(71)
+#define STN8815_PIN_D20		_GPIO(72)
+#define STN8815_PIN_C21		_GPIO(73)
+#define STN8815_PIN_C20		_GPIO(74)
+#define STN8815_PIN_C19		_GPIO(75)
+#define STN8815_PIN_B20		_GPIO(76)
+#define STN8815_PIN_B8		_GPIO(77)
+#define STN8815_PIN_A8		_GPIO(78)
+#define STN8815_PIN_C9		_GPIO(79)
+#define STN8815_PIN_B9		_GPIO(80)
+#define STN8815_PIN_A9		_GPIO(81)
+#define STN8815_PIN_C10		_GPIO(82)
+#define STN8815_PIN_K1		_GPIO(83)
+#define STN8815_PIN_K3		_GPIO(84)
+#define STN8815_PIN_K2		_GPIO(85)
+#define STN8815_PIN_J1		_GPIO(86)
+#define STN8815_PIN_J3		_GPIO(87)
+#define STN8815_PIN_J2		_GPIO(88)
+#define STN8815_PIN_H1		_GPIO(89)
+#define STN8815_PIN_H3		_GPIO(90)
+#define STN8815_PIN_H2		_GPIO(91)
+#define STN8815_PIN_G1		_GPIO(92)
+#define STN8815_PIN_G3		_GPIO(93)
+#define STN8815_PIN_G2		_GPIO(94)
+#define STN8815_PIN_F1		_GPIO(95)
+#define STN8815_PIN_T20		_GPIO(96)
+#define STN8815_PIN_R21		_GPIO(97)
+#define STN8815_PIN_R20		_GPIO(98)
+#define STN8815_PIN_U22		_GPIO(99)
+#define STN8815_PIN_N21		_GPIO(100)
+#define STN8815_PIN_N20		_GPIO(101)
+#define STN8815_PIN_P22		_GPIO(102)
+#define STN8815_PIN_N22		_GPIO(103)
+#define STN8815_PIN_V22		_GPIO(104)
+#define STN8815_PIN_V21		_GPIO(105)
+#define STN8815_PIN_K22		_GPIO(106)
+#define STN8815_PIN_K21		_GPIO(107)
+#define STN8815_PIN_H20		_GPIO(108)
+#define STN8815_PIN_G20		_GPIO(109)
+#define STN8815_PIN_L21		_GPIO(110)
+#define STN8815_PIN_H21		_GPIO(111)
+#define STN8815_PIN_J21		_GPIO(112)
+#define STN8815_PIN_H22		_GPIO(113)
+#define STN8815_PIN_K20		_GPIO(114)
+#define STN8815_PIN_L22		_GPIO(115)
+#define STN8815_PIN_G21		_GPIO(116)
+#define STN8815_PIN_J20		_GPIO(117)
+#define STN8815_PIN_G22		_GPIO(118)
+#define STN8815_PIN_U19		_GPIO(119)
+#define STN8815_PIN_G19		_GPIO(120)
+#define STN8815_PIN_M22		_GPIO(121)
+#define STN8815_PIN_M19		_GPIO(122)
+#define STN8815_PIN_J22		_GPIO(123)
+/* GPIOs 124-127 not routed to pins */
+
+/*
+ * The names of the pins are denoted by GPIO number and ball name, even
+ * though they can be used for other things than GPIO, this is the first
+ * column in the table of the data sheet and often used on schematics and
+ * such.
+ */
+static const struct pinctrl_pin_desc nmk_stn8815_pins[] = {
+	PINCTRL_PIN(STN8815_PIN_B4, "GPIO0_B4"),
+	PINCTRL_PIN(STN8815_PIN_D5, "GPIO1_D5"),
+	PINCTRL_PIN(STN8815_PIN_C5, "GPIO2_C5"),
+	PINCTRL_PIN(STN8815_PIN_A4, "GPIO3_A4"),
+	PINCTRL_PIN(STN8815_PIN_B5, "GPIO4_B5"),
+	PINCTRL_PIN(STN8815_PIN_D6, "GPIO5_D6"),
+	PINCTRL_PIN(STN8815_PIN_C6, "GPIO6_C6"),
+	PINCTRL_PIN(STN8815_PIN_B6, "GPIO7_B6"),
+	PINCTRL_PIN(STN8815_PIN_B10, "GPIO8_B10"),
+	PINCTRL_PIN(STN8815_PIN_A10, "GPIO9_A10"),
+	PINCTRL_PIN(STN8815_PIN_C11, "GPIO10_C11"),
+	PINCTRL_PIN(STN8815_PIN_B11, "GPIO11_B11"),
+	PINCTRL_PIN(STN8815_PIN_A11, "GPIO12_A11"),
+	PINCTRL_PIN(STN8815_PIN_C12, "GPIO13_C12"),
+	PINCTRL_PIN(STN8815_PIN_B12, "GPIO14_B12"),
+	PINCTRL_PIN(STN8815_PIN_A12, "GPIO15_A12"),
+	PINCTRL_PIN(STN8815_PIN_C13, "GPIO16_C13"),
+	PINCTRL_PIN(STN8815_PIN_B13, "GPIO17_B13"),
+	PINCTRL_PIN(STN8815_PIN_A13, "GPIO18_A13"),
+	PINCTRL_PIN(STN8815_PIN_D13, "GPIO19_D13"),
+	PINCTRL_PIN(STN8815_PIN_C14, "GPIO20_C14"),
+	PINCTRL_PIN(STN8815_PIN_B14, "GPIO21_B14"),
+	PINCTRL_PIN(STN8815_PIN_A14, "GPIO22_A14"),
+	PINCTRL_PIN(STN8815_PIN_D15, "GPIO23_D15"),
+	PINCTRL_PIN(STN8815_PIN_C15, "GPIO24_C15"),
+	PINCTRL_PIN(STN8815_PIN_B15, "GPIO25_B15"),
+	PINCTRL_PIN(STN8815_PIN_A15, "GPIO26_A15"),
+	PINCTRL_PIN(STN8815_PIN_C16, "GPIO27_C16"),
+	PINCTRL_PIN(STN8815_PIN_B16, "GPIO28_B16"),
+	PINCTRL_PIN(STN8815_PIN_A16, "GPIO29_A16"),
+	PINCTRL_PIN(STN8815_PIN_D17, "GPIO30_D17"),
+	PINCTRL_PIN(STN8815_PIN_C17, "GPIO31_C17"),
+	PINCTRL_PIN(STN8815_PIN_AB6, "GPIO32_AB6"),
+	PINCTRL_PIN(STN8815_PIN_AA6, "GPIO33_AA6"),
+	PINCTRL_PIN(STN8815_PIN_Y6, "GPIO34_Y6"),
+	PINCTRL_PIN(STN8815_PIN_Y5, "GPIO35_Y5"),
+	PINCTRL_PIN(STN8815_PIN_AA5, "GPIO36_AA5"),
+	PINCTRL_PIN(STN8815_PIN_AB5, "GPIO37_AB5"),
+	PINCTRL_PIN(STN8815_PIN_AB4, "GPIO38_AB4"),
+	PINCTRL_PIN(STN8815_PIN_Y4, "GPIO39_Y4"),
+	PINCTRL_PIN(STN8815_PIN_R1, "GPIO40_R1"),
+	PINCTRL_PIN(STN8815_PIN_R2, "GPIO41_R2"),
+	PINCTRL_PIN(STN8815_PIN_R3, "GPIO42_R3"),
+	PINCTRL_PIN(STN8815_PIN_P1, "GPIO43_P1"),
+	PINCTRL_PIN(STN8815_PIN_P2, "GPIO44_P2"),
+	PINCTRL_PIN(STN8815_PIN_P3, "GPIO45_P3"),
+	PINCTRL_PIN(STN8815_PIN_N1, "GPIO46_N1"),
+	PINCTRL_PIN(STN8815_PIN_N2, "GPIO47_N2"),
+	PINCTRL_PIN(STN8815_PIN_N3, "GPIO48_N3"),
+	PINCTRL_PIN(STN8815_PIN_M1, "GPIO49_M1"),
+	PINCTRL_PIN(STN8815_PIN_M3, "GPIO50_M3"),
+	PINCTRL_PIN(STN8815_PIN_M2, "GPIO51_M2"),
+	PINCTRL_PIN(STN8815_PIN_L1, "GPIO52_L1"),
+	PINCTRL_PIN(STN8815_PIN_L4, "GPIO53_L4"),
+	PINCTRL_PIN(STN8815_PIN_L3, "GPIO54_L3"),
+	PINCTRL_PIN(STN8815_PIN_L2, "GPIO55_L2"),
+	PINCTRL_PIN(STN8815_PIN_F3, "GPIO56_F3"),
+	PINCTRL_PIN(STN8815_PIN_F2, "GPIO57_F2"),
+	PINCTRL_PIN(STN8815_PIN_E1, "GPIO58_E1"),
+	PINCTRL_PIN(STN8815_PIN_E3, "GPIO59_E3"),
+	PINCTRL_PIN(STN8815_PIN_E2, "GPIO60_E2"),
+	PINCTRL_PIN(STN8815_PIN_E4, "GPIO61_E4"),
+	PINCTRL_PIN(STN8815_PIN_D3, "GPIO62_D3"),
+	PINCTRL_PIN(STN8815_PIN_D2, "GPIO63_D2"),
+	PINCTRL_PIN(STN8815_PIN_F21, "GPIO64_F21"),
+	PINCTRL_PIN(STN8815_PIN_F20, "GPIO65_F20"),
+	PINCTRL_PIN(STN8815_PIN_E22, "GPIO66_E22"),
+	PINCTRL_PIN(STN8815_PIN_D22, "GPIO67_D22"),
+	PINCTRL_PIN(STN8815_PIN_E21, "GPIO68_E21"),
+	PINCTRL_PIN(STN8815_PIN_E20, "GPIO69_E20"),
+	PINCTRL_PIN(STN8815_PIN_C22, "GPIO70_C22"),
+	PINCTRL_PIN(STN8815_PIN_D21, "GPIO71_D21"),
+	PINCTRL_PIN(STN8815_PIN_D20, "GPIO72_D20"),
+	PINCTRL_PIN(STN8815_PIN_C21, "GPIO73_C21"),
+	PINCTRL_PIN(STN8815_PIN_C20, "GPIO74_C20"),
+	PINCTRL_PIN(STN8815_PIN_C19, "GPIO75_C19"),
+	PINCTRL_PIN(STN8815_PIN_B20, "GPIO76_B20"),
+	PINCTRL_PIN(STN8815_PIN_B8, "GPIO77_B8"),
+	PINCTRL_PIN(STN8815_PIN_A8, "GPIO78_A8"),
+	PINCTRL_PIN(STN8815_PIN_C9, "GPIO79_C9"),
+	PINCTRL_PIN(STN8815_PIN_B9, "GPIO80_B9"),
+	PINCTRL_PIN(STN8815_PIN_A9, "GPIO81_A9"),
+	PINCTRL_PIN(STN8815_PIN_C10, "GPIO82_C10"),
+	PINCTRL_PIN(STN8815_PIN_K1, "GPIO83_K1"),
+	PINCTRL_PIN(STN8815_PIN_K3, "GPIO84_K3"),
+	PINCTRL_PIN(STN8815_PIN_K2, "GPIO85_K2"),
+	PINCTRL_PIN(STN8815_PIN_J1, "GPIO86_J1"),
+	PINCTRL_PIN(STN8815_PIN_J3, "GPIO87_J3"),
+	PINCTRL_PIN(STN8815_PIN_J2, "GPIO88_J2"),
+	PINCTRL_PIN(STN8815_PIN_H1, "GPIO89_H1"),
+	PINCTRL_PIN(STN8815_PIN_H3, "GPIO90_H3"),
+	PINCTRL_PIN(STN8815_PIN_H2, "GPIO91_H2"),
+	PINCTRL_PIN(STN8815_PIN_G1, "GPIO92_G1"),
+	PINCTRL_PIN(STN8815_PIN_G3, "GPIO93_G3"),
+	PINCTRL_PIN(STN8815_PIN_G2, "GPIO94_G2"),
+	PINCTRL_PIN(STN8815_PIN_F1, "GPIO95_F1"),
+	PINCTRL_PIN(STN8815_PIN_T20, "GPIO96_T20"),
+	PINCTRL_PIN(STN8815_PIN_R21, "GPIO97_R21"),
+	PINCTRL_PIN(STN8815_PIN_R20, "GPIO98_R20"),
+	PINCTRL_PIN(STN8815_PIN_U22, "GPIO99_U22"),
+	PINCTRL_PIN(STN8815_PIN_N21, "GPIO100_N21"),
+	PINCTRL_PIN(STN8815_PIN_N20, "GPIO101_N20"),
+	PINCTRL_PIN(STN8815_PIN_P22, "GPIO102_P22"),
+	PINCTRL_PIN(STN8815_PIN_N22, "GPIO103_N22"),
+	PINCTRL_PIN(STN8815_PIN_V22, "GPIO104_V22"),
+	PINCTRL_PIN(STN8815_PIN_V21, "GPIO105_V21"),
+	PINCTRL_PIN(STN8815_PIN_K22, "GPIO106_K22"),
+	PINCTRL_PIN(STN8815_PIN_K21, "GPIO107_K21"),
+	PINCTRL_PIN(STN8815_PIN_H20, "GPIO108_H20"),
+	PINCTRL_PIN(STN8815_PIN_G20, "GPIO109_G20"),
+	PINCTRL_PIN(STN8815_PIN_L21, "GPIO110_L21"),
+	PINCTRL_PIN(STN8815_PIN_H21, "GPIO111_H21"),
+	PINCTRL_PIN(STN8815_PIN_J21, "GPIO112_J21"),
+	PINCTRL_PIN(STN8815_PIN_H22, "GPIO113_H22"),
+	PINCTRL_PIN(STN8815_PIN_K20, "GPIO114_K20"),
+	PINCTRL_PIN(STN8815_PIN_L22, "GPIO115_L22"),
+	PINCTRL_PIN(STN8815_PIN_G21, "GPIO116_G21"),
+	PINCTRL_PIN(STN8815_PIN_J20, "GPIO117_J20"),
+	PINCTRL_PIN(STN8815_PIN_G22, "GPIO118_G22"),
+	PINCTRL_PIN(STN8815_PIN_U19, "GPIO119_U19"),
+	PINCTRL_PIN(STN8815_PIN_G19, "GPIO120_G19"),
+	PINCTRL_PIN(STN8815_PIN_M22, "GPIO121_M22"),
+	PINCTRL_PIN(STN8815_PIN_M19, "GPIO122_M19"),
+	PINCTRL_PIN(STN8815_PIN_J22, "GPIO123_J22"),
+};
+
+#define STN8815_GPIO_RANGE(a, b, c) { .name = "STN8815", .id = a, .base = b, \
+			.pin_base = b, .npins = c }
+
+/*
+ * This matches the 32-pin gpio chips registered by the GPIO portion. This
+ * cannot be const since we assign the struct gpio_chip * pointer at runtime.
+ */
+static struct pinctrl_gpio_range nmk_stn8815_ranges[] = {
+	STN8815_GPIO_RANGE(0, 0, 32),
+	STN8815_GPIO_RANGE(1, 32, 32),
+	STN8815_GPIO_RANGE(2, 64, 32),
+	STN8815_GPIO_RANGE(3, 96, 28),
+};
+
+/*
+ * Read the pin group names like this:
+ * u0_a_1    = first groups of pins for uart0 on alt function a
+ * i2c2_b_2  = second group of pins for i2c2 on alt function b
+ */
+
+/* Altfunction A */
+static const unsigned u0_a_1_pins[] = { STN8815_PIN_B4, STN8815_PIN_D5,
+	STN8815_PIN_C5, STN8815_PIN_A4, STN8815_PIN_B5, STN8815_PIN_D6,
+	STN8815_PIN_C6, STN8815_PIN_B6 };
+static const unsigned mmcsd_a_1_pins[] = { STN8815_PIN_B10, STN8815_PIN_A10,
+	STN8815_PIN_C11, STN8815_PIN_B11, STN8815_PIN_A11, STN8815_PIN_C12,
+	STN8815_PIN_B12, STN8815_PIN_A12, STN8815_PIN_C13, STN8815_PIN_C15 };
+static const unsigned u1_a_1_pins[] = { STN8815_PIN_M2, STN8815_PIN_L1,
+					STN8815_PIN_F3, STN8815_PIN_F2 };
+static const unsigned i2c1_a_1_pins[] = { STN8815_PIN_L4, STN8815_PIN_L3 };
+static const unsigned i2c0_a_1_pins[] = { STN8815_PIN_D3, STN8815_PIN_D2 };
+/* Altfunction B */
+static const unsigned u1_b_1_pins[] = { STN8815_PIN_B16, STN8815_PIN_A16 };
+static const unsigned i2cusb_b_1_pins[] = { STN8815_PIN_C21, STN8815_PIN_C20 };
+
+#define STN8815_PIN_GROUP(a,b) { .name = #a, .pins = a##_pins,		\
+			.npins = ARRAY_SIZE(a##_pins), .altsetting = b }
+
+static const struct nmk_pingroup nmk_stn8815_groups[] = {
+	STN8815_PIN_GROUP(u0_a_1, NMK_GPIO_ALT_A),
+	STN8815_PIN_GROUP(mmcsd_a_1, NMK_GPIO_ALT_A),
+	STN8815_PIN_GROUP(u1_a_1, NMK_GPIO_ALT_A),
+	STN8815_PIN_GROUP(i2c1_a_1, NMK_GPIO_ALT_A),
+	STN8815_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
+	STN8815_PIN_GROUP(u1_b_1, NMK_GPIO_ALT_B),
+	STN8815_PIN_GROUP(i2cusb_b_1, NMK_GPIO_ALT_B),
+};
+
+/* We use this macro to define the groups applicable to a function */
+#define STN8815_FUNC_GROUPS(a, b...)	   \
+static const char * const a##_groups[] = { b };
+
+STN8815_FUNC_GROUPS(u0, "u0_a_1");
+STN8815_FUNC_GROUPS(mmcsd, "mmcsd_a_1");
+STN8815_FUNC_GROUPS(u1, "u1_a_1", "u1_b_1");
+STN8815_FUNC_GROUPS(i2c1, "i2c1_a_1");
+STN8815_FUNC_GROUPS(i2c0, "i2c0_a_1");
+STN8815_FUNC_GROUPS(i2cusb, "i2cusb_b_1");
+
+#define FUNCTION(fname)					\
+	{						\
+		.name = #fname,				\
+		.groups = fname##_groups,		\
+		.ngroups = ARRAY_SIZE(fname##_groups),	\
+	}
+
+static const struct nmk_function nmk_stn8815_functions[] = {
+	FUNCTION(u0),
+	FUNCTION(mmcsd),
+	FUNCTION(u1),
+	FUNCTION(i2c1),
+	FUNCTION(i2c0),
+	FUNCTION(i2cusb),
+};
+
+static const struct nmk_pinctrl_soc_data nmk_stn8815_soc = {
+	.gpio_ranges = nmk_stn8815_ranges,
+	.gpio_num_ranges = ARRAY_SIZE(nmk_stn8815_ranges),
+	.pins = nmk_stn8815_pins,
+	.npins = ARRAY_SIZE(nmk_stn8815_pins),
+	.functions = nmk_stn8815_functions,
+	.nfunctions = ARRAY_SIZE(nmk_stn8815_functions),
+	.groups = nmk_stn8815_groups,
+	.ngroups = ARRAY_SIZE(nmk_stn8815_groups),
+};
+
+void __devinit
+nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc)
+{
+	*soc = &nmk_stn8815_soc;
+}
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 53b0d49a7a1..6030a513f3c 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -819,6 +819,7 @@ static struct irq_chip nmk_gpio_irq_chip = {
 	.irq_set_wake	= nmk_gpio_irq_set_wake,
 	.irq_startup	= nmk_gpio_irq_startup,
 	.irq_shutdown	= nmk_gpio_irq_shutdown,
+	.flags		= IRQCHIP_MASK_ON_SUSPEND,
 };
 
 static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc,
@@ -826,16 +827,14 @@ static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc,
 {
 	struct nmk_gpio_chip *nmk_chip;
 	struct irq_chip *host_chip = irq_get_chip(irq);
-	unsigned int first_irq;
 
 	chained_irq_enter(host_chip, desc);
 
 	nmk_chip = irq_get_handler_data(irq);
-	first_irq = nmk_chip->domain->revmap_data.legacy.first_irq;
 	while (status) {
 		int bit = __ffs(status);
 
-		generic_handle_irq(first_irq + bit);
+		generic_handle_irq(irq_find_mapping(nmk_chip->domain, bit));
 		status &= ~BIT(bit);
 	}
 
@@ -1292,7 +1291,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
 						NOMADIK_GPIO_TO_IRQ(pdata->first_gpio),
 						0, &nmk_gpio_irq_simple_ops, nmk_chip);
 	if (!nmk_chip->domain) {
-		pr_err("%s: Failed to create irqdomain\n", np->full_name);
+		dev_err(&dev->dev, "failed to create irqdomain\n");
 		ret = -ENOSYS;
 		goto out;
 	}
@@ -1720,8 +1719,12 @@ static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
 			of_match_device(nmk_pinctrl_match, &pdev->dev)->data;
 
 	/* Poke in other ASIC variants here */
+	if (version == PINCTRL_NMK_STN8815)
+		nmk_pinctrl_stn8815_init(&npct->soc);
 	if (version == PINCTRL_NMK_DB8500)
 		nmk_pinctrl_db8500_init(&npct->soc);
+	if (version == PINCTRL_NMK_DB8540)
+		nmk_pinctrl_db8540_init(&npct->soc);
 
 	/*
 	 * We need all the GPIO drivers to probe FIRST, or we will not be able
@@ -1731,7 +1734,6 @@ static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
 	for (i = 0; i < npct->soc->gpio_num_ranges; i++) {
 		if (!nmk_gpio_chips[i]) {
 			dev_warn(&pdev->dev, "GPIO chip %d not registered yet\n", i);
-			devm_kfree(&pdev->dev, npct);
 			return -EPROBE_DEFER;
 		}
 		npct->soc->gpio_ranges[i].gc = &nmk_gpio_chips[i]->chip;
@@ -1773,6 +1775,7 @@ static struct platform_driver nmk_gpio_driver = {
 static const struct platform_device_id nmk_pinctrl_id[] = {
 	{ "pinctrl-stn8815", PINCTRL_NMK_STN8815 },
 	{ "pinctrl-db8500", PINCTRL_NMK_DB8500 },
+	{ "pinctrl-db8540", PINCTRL_NMK_DB8540 },
 };
 
 static struct platform_driver nmk_pinctrl_driver = {
diff --git a/drivers/pinctrl/pinctrl-nomadik.h b/drivers/pinctrl/pinctrl-nomadik.h
index bc91aed7185..5c99f1c62df 100644
--- a/drivers/pinctrl/pinctrl-nomadik.h
+++ b/drivers/pinctrl/pinctrl-nomadik.h
@@ -6,6 +6,7 @@
 /* Package definitions */
 #define PINCTRL_NMK_STN8815	0
 #define PINCTRL_NMK_DB8500	1
+#define PINCTRL_NMK_DB8540	2
 
 /**
  * struct nmk_function - Nomadik pinctrl mux function
@@ -61,6 +62,19 @@ struct nmk_pinctrl_soc_data {
 	unsigned ngroups;
 };
 
+#ifdef CONFIG_PINCTRL_STN8815
+
+void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc);
+
+#else
+
+static inline void
+nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc)
+{
+}
+
+#endif
+
 #ifdef CONFIG_PINCTRL_DB8500
 
 void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc);
@@ -74,4 +88,17 @@ nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc)
 
 #endif
 
+#ifdef CONFIG_PINCTRL_DB8540
+
+void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc);
+
+#else
+
+static inline void
+nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc)
+{
+}
+
+#endif
+
 #endif /* PINCTRL_PINCTRL_NOMADIK_H */
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
new file mode 100644
index 00000000000..dd108a94acf
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -0,0 +1,888 @@
+/*
+ * pin-controller/pin-mux/pin-config/gpio-driver for Samsung's SoC's.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ *		http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This driver implements the Samsung pinctrl driver. It supports setting up of
+ * pinmux and pinconf configurations. The gpiolib interface is also included.
+ * External interrupt (gpio and wakeup) support are not included in this driver
+ * but provides extensions to which platform specific implementation of the gpio
+ * and wakeup interrupts can be hooked to.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+
+#include "core.h"
+#include "pinctrl-samsung.h"
+
+#define GROUP_SUFFIX		"-grp"
+#define GSUFFIX_LEN		sizeof(GROUP_SUFFIX)
+#define FUNCTION_SUFFIX		"-mux"
+#define FSUFFIX_LEN		sizeof(FUNCTION_SUFFIX)
+
+/* list of all possible config options supported */
+struct pin_config {
+	char		*prop_cfg;
+	unsigned int	cfg_type;
+} pcfgs[] = {
+	{ "samsung,pin-pud", PINCFG_TYPE_PUD },
+	{ "samsung,pin-drv", PINCFG_TYPE_DRV },
+	{ "samsung,pin-con-pdn", PINCFG_TYPE_CON_PDN },
+	{ "samsung,pin-pud-pdn", PINCFG_TYPE_PUD_PDN },
+};
+
+/* check if the selector is a valid pin group selector */
+static int samsung_get_group_count(struct pinctrl_dev *pctldev)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	return drvdata->nr_groups;
+}
+
+/* return the name of the group selected by the group selector */
+static const char *samsung_get_group_name(struct pinctrl_dev *pctldev,
+						unsigned selector)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	return drvdata->pin_groups[selector].name;
+}
+
+/* return the pin numbers associated with the specified group */
+static int samsung_get_group_pins(struct pinctrl_dev *pctldev,
+		unsigned selector, const unsigned **pins, unsigned *num_pins)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	*pins = drvdata->pin_groups[selector].pins;
+	*num_pins = drvdata->pin_groups[selector].num_pins;
+	return 0;
+}
+
+/* create pinctrl_map entries by parsing device tree nodes */
+static int samsung_dt_node_to_map(struct pinctrl_dev *pctldev,
+			struct device_node *np, struct pinctrl_map **maps,
+			unsigned *nmaps)
+{
+	struct device *dev = pctldev->dev;
+	struct pinctrl_map *map;
+	unsigned long *cfg = NULL;
+	char *gname, *fname;
+	int cfg_cnt = 0, map_cnt = 0, idx = 0;
+
+	/* count the number of config options specfied in the node */
+	for (idx = 0; idx < ARRAY_SIZE(pcfgs); idx++) {
+		if (of_find_property(np, pcfgs[idx].prop_cfg, NULL))
+			cfg_cnt++;
+	}
+
+	/*
+	 * Find out the number of map entries to create. All the config options
+	 * can be accomadated into a single config map entry.
+	 */
+	if (cfg_cnt)
+		map_cnt = 1;
+	if (of_find_property(np, "samsung,pin-function", NULL))
+		map_cnt++;
+	if (!map_cnt) {
+		dev_err(dev, "node %s does not have either config or function "
+				"configurations\n", np->name);
+		return -EINVAL;
+	}
+
+	/* Allocate memory for pin-map entries */
+	map = kzalloc(sizeof(*map) * map_cnt, GFP_KERNEL);
+	if (!map) {
+		dev_err(dev, "could not alloc memory for pin-maps\n");
+		return -ENOMEM;
+	}
+	*nmaps = 0;
+
+	/*
+	 * Allocate memory for pin group name. The pin group name is derived
+	 * from the node name from which these map entries are be created.
+	 */
+	gname = kzalloc(strlen(np->name) + GSUFFIX_LEN, GFP_KERNEL);
+	if (!gname) {
+		dev_err(dev, "failed to alloc memory for group name\n");
+		goto free_map;
+	}
+	sprintf(gname, "%s%s", np->name, GROUP_SUFFIX);
+
+	/*
+	 * don't have config options? then skip over to creating function
+	 * map entries.
+	 */
+	if (!cfg_cnt)
+		goto skip_cfgs;
+
+	/* Allocate memory for config entries */
+	cfg = kzalloc(sizeof(*cfg) * cfg_cnt, GFP_KERNEL);
+	if (!cfg) {
+		dev_err(dev, "failed to alloc memory for configs\n");
+		goto free_gname;
+	}
+
+	/* Prepare a list of config settings */
+	for (idx = 0, cfg_cnt = 0; idx < ARRAY_SIZE(pcfgs); idx++) {
+		u32 value;
+		if (!of_property_read_u32(np, pcfgs[idx].prop_cfg, &value))
+			cfg[cfg_cnt++] =
+				PINCFG_PACK(pcfgs[idx].cfg_type, value);
+	}
+
+	/* create the config map entry */
+	map[*nmaps].data.configs.group_or_pin = gname;
+	map[*nmaps].data.configs.configs = cfg;
+	map[*nmaps].data.configs.num_configs = cfg_cnt;
+	map[*nmaps].type = PIN_MAP_TYPE_CONFIGS_GROUP;
+	*nmaps += 1;
+
+skip_cfgs:
+	/* create the function map entry */
+	if (of_find_property(np, "samsung,pin-function", NULL)) {
+		fname = kzalloc(strlen(np->name) + FSUFFIX_LEN,	GFP_KERNEL);
+		if (!fname) {
+			dev_err(dev, "failed to alloc memory for func name\n");
+			goto free_cfg;
+		}
+		sprintf(fname, "%s%s", np->name, FUNCTION_SUFFIX);
+
+		map[*nmaps].data.mux.group = gname;
+		map[*nmaps].data.mux.function = fname;
+		map[*nmaps].type = PIN_MAP_TYPE_MUX_GROUP;
+		*nmaps += 1;
+	}
+
+	*maps = map;
+	return 0;
+
+free_cfg:
+	kfree(cfg);
+free_gname:
+	kfree(gname);
+free_map:
+	kfree(map);
+	return -ENOMEM;
+}
+
+/* free the memory allocated to hold the pin-map table */
+static void samsung_dt_free_map(struct pinctrl_dev *pctldev,
+			     struct pinctrl_map *map, unsigned num_maps)
+{
+	int idx;
+
+	for (idx = 0; idx < num_maps; idx++) {
+		if (map[idx].type == PIN_MAP_TYPE_MUX_GROUP) {
+			kfree(map[idx].data.mux.function);
+			if (!idx)
+				kfree(map[idx].data.mux.group);
+		} else if (map->type == PIN_MAP_TYPE_CONFIGS_GROUP) {
+			kfree(map[idx].data.configs.configs);
+			if (!idx)
+				kfree(map[idx].data.configs.group_or_pin);
+		}
+	};
+
+	kfree(map);
+}
+
+/* list of pinctrl callbacks for the pinctrl core */
+static struct pinctrl_ops samsung_pctrl_ops = {
+	.get_groups_count	= samsung_get_group_count,
+	.get_group_name		= samsung_get_group_name,
+	.get_group_pins		= samsung_get_group_pins,
+	.dt_node_to_map		= samsung_dt_node_to_map,
+	.dt_free_map		= samsung_dt_free_map,
+};
+
+/* check if the selector is a valid pin function selector */
+static int samsung_get_functions_count(struct pinctrl_dev *pctldev)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	return drvdata->nr_functions;
+}
+
+/* return the name of the pin function specified */
+static const char *samsung_pinmux_get_fname(struct pinctrl_dev *pctldev,
+						unsigned selector)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	return drvdata->pmx_functions[selector].name;
+}
+
+/* return the groups associated for the specified function selector */
+static int samsung_pinmux_get_groups(struct pinctrl_dev *pctldev,
+		unsigned selector, const char * const **groups,
+		unsigned * const num_groups)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	*groups = drvdata->pmx_functions[selector].groups;
+	*num_groups = drvdata->pmx_functions[selector].num_groups;
+	return 0;
+}
+
+/*
+ * given a pin number that is local to a pin controller, find out the pin bank
+ * and the register base of the pin bank.
+ */
+static void pin_to_reg_bank(struct gpio_chip *gc, unsigned pin,
+			void __iomem **reg, u32 *offset,
+			struct samsung_pin_bank **bank)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+	struct samsung_pin_bank *b;
+
+	drvdata = dev_get_drvdata(gc->dev);
+	b = drvdata->ctrl->pin_banks;
+
+	while ((pin >= b->pin_base) &&
+			((b->pin_base + b->nr_pins - 1) < pin))
+		b++;
+
+	*reg = drvdata->virt_base + b->pctl_offset;
+	*offset = pin - b->pin_base;
+	if (bank)
+		*bank = b;
+
+	/* some banks have two config registers in a single bank */
+	if (*offset * b->func_width > BITS_PER_LONG)
+		*reg += 4;
+}
+
+/* enable or disable a pinmux function */
+static void samsung_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
+					unsigned group, bool enable)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+	const unsigned int *pins;
+	struct samsung_pin_bank *bank;
+	void __iomem *reg;
+	u32 mask, shift, data, pin_offset, cnt;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	pins = drvdata->pin_groups[group].pins;
+
+	/*
+	 * for each pin in the pin group selected, program the correspoding pin
+	 * pin function number in the config register.
+	 */
+	for (cnt = 0; cnt < drvdata->pin_groups[group].num_pins; cnt++) {
+		pin_to_reg_bank(drvdata->gc, pins[cnt] - drvdata->ctrl->base,
+				&reg, &pin_offset, &bank);
+		mask = (1 << bank->func_width) - 1;
+		shift = pin_offset * bank->func_width;
+
+		data = readl(reg);
+		data &= ~(mask << shift);
+		if (enable)
+			data |= drvdata->pin_groups[group].func << shift;
+		writel(data, reg);
+	}
+}
+
+/* enable a specified pinmux by writing to registers */
+static int samsung_pinmux_enable(struct pinctrl_dev *pctldev, unsigned selector,
+					unsigned group)
+{
+	samsung_pinmux_setup(pctldev, selector, group, true);
+	return 0;
+}
+
+/* disable a specified pinmux by writing to registers */
+static void samsung_pinmux_disable(struct pinctrl_dev *pctldev,
+					unsigned selector, unsigned group)
+{
+	samsung_pinmux_setup(pctldev, selector, group, false);
+}
+
+/*
+ * The calls to gpio_direction_output() and gpio_direction_input()
+ * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
+ * function called from the gpiolib interface).
+ */
+static int samsung_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
+		struct pinctrl_gpio_range *range, unsigned offset, bool input)
+{
+	struct samsung_pin_bank *bank;
+	void __iomem *reg;
+	u32 data, pin_offset, mask, shift;
+
+	pin_to_reg_bank(range->gc, offset, &reg, &pin_offset, &bank);
+	mask = (1 << bank->func_width) - 1;
+	shift = pin_offset * bank->func_width;
+
+	data = readl(reg);
+	data &= ~(mask << shift);
+	if (!input)
+		data |= FUNC_OUTPUT << shift;
+	writel(data, reg);
+	return 0;
+}
+
+/* list of pinmux callbacks for the pinmux vertical in pinctrl core */
+static struct pinmux_ops samsung_pinmux_ops = {
+	.get_functions_count	= samsung_get_functions_count,
+	.get_function_name	= samsung_pinmux_get_fname,
+	.get_function_groups	= samsung_pinmux_get_groups,
+	.enable			= samsung_pinmux_enable,
+	.disable		= samsung_pinmux_disable,
+	.gpio_set_direction	= samsung_pinmux_gpio_set_direction,
+};
+
+/* set or get the pin config settings for a specified pin */
+static int samsung_pinconf_rw(struct pinctrl_dev *pctldev, unsigned int pin,
+				unsigned long *config, bool set)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+	struct samsung_pin_bank *bank;
+	void __iomem *reg_base;
+	enum pincfg_type cfg_type = PINCFG_UNPACK_TYPE(*config);
+	u32 data, width, pin_offset, mask, shift;
+	u32 cfg_value, cfg_reg;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	pin_to_reg_bank(drvdata->gc, pin - drvdata->ctrl->base, &reg_base,
+					&pin_offset, &bank);
+
+	switch (cfg_type) {
+	case PINCFG_TYPE_PUD:
+		width = bank->pud_width;
+		cfg_reg = PUD_REG;
+		break;
+	case PINCFG_TYPE_DRV:
+		width = bank->drv_width;
+		cfg_reg = DRV_REG;
+		break;
+	case PINCFG_TYPE_CON_PDN:
+		width = bank->conpdn_width;
+		cfg_reg = CONPDN_REG;
+		break;
+	case PINCFG_TYPE_PUD_PDN:
+		width = bank->pudpdn_width;
+		cfg_reg = PUDPDN_REG;
+		break;
+	default:
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	mask = (1 << width) - 1;
+	shift = pin_offset * width;
+	data = readl(reg_base + cfg_reg);
+
+	if (set) {
+		cfg_value = PINCFG_UNPACK_VALUE(*config);
+		data &= ~(mask << shift);
+		data |= (cfg_value << shift);
+		writel(data, reg_base + cfg_reg);
+	} else {
+		data >>= shift;
+		data &= mask;
+		*config = PINCFG_PACK(cfg_type, data);
+	}
+	return 0;
+}
+
+/* set the pin config settings for a specified pin */
+static int samsung_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+				unsigned long config)
+{
+	return samsung_pinconf_rw(pctldev, pin, &config, true);
+}
+
+/* get the pin config settings for a specified pin */
+static int samsung_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+					unsigned long *config)
+{
+	return samsung_pinconf_rw(pctldev, pin, config, false);
+}
+
+/* set the pin config settings for a specified pin group */
+static int samsung_pinconf_group_set(struct pinctrl_dev *pctldev,
+			unsigned group, unsigned long config)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+	const unsigned int *pins;
+	unsigned int cnt;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	pins = drvdata->pin_groups[group].pins;
+
+	for (cnt = 0; cnt < drvdata->pin_groups[group].num_pins; cnt++)
+		samsung_pinconf_set(pctldev, pins[cnt], config);
+
+	return 0;
+}
+
+/* get the pin config settings for a specified pin group */
+static int samsung_pinconf_group_get(struct pinctrl_dev *pctldev,
+				unsigned int group, unsigned long *config)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+	const unsigned int *pins;
+
+	drvdata = pinctrl_dev_get_drvdata(pctldev);
+	pins = drvdata->pin_groups[group].pins;
+	samsung_pinconf_get(pctldev, pins[0], config);
+	return 0;
+}
+
+/* list of pinconfig callbacks for pinconfig vertical in the pinctrl code */
+static struct pinconf_ops samsung_pinconf_ops = {
+	.pin_config_get		= samsung_pinconf_get,
+	.pin_config_set		= samsung_pinconf_set,
+	.pin_config_group_get	= samsung_pinconf_group_get,
+	.pin_config_group_set	= samsung_pinconf_group_set,
+};
+
+/* gpiolib gpio_set callback function */
+static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+	void __iomem *reg;
+	u32 pin_offset, data;
+
+	pin_to_reg_bank(gc, offset, &reg, &pin_offset, NULL);
+	data = readl(reg + DAT_REG);
+	data &= ~(1 << pin_offset);
+	if (value)
+		data |= 1 << pin_offset;
+	writel(data, reg + DAT_REG);
+}
+
+/* gpiolib gpio_get callback function */
+static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+	void __iomem *reg;
+	u32 pin_offset, data;
+
+	pin_to_reg_bank(gc, offset, &reg, &pin_offset, NULL);
+	data = readl(reg + DAT_REG);
+	data >>= pin_offset;
+	data &= 1;
+	return data;
+}
+
+/*
+ * gpiolib gpio_direction_input callback function. The setting of the pin
+ * mux function as 'gpio input' will be handled by the pinctrl susbsystem
+ * interface.
+ */
+static int samsung_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+	return pinctrl_gpio_direction_input(gc->base + offset);
+}
+
+/*
+ * gpiolib gpio_direction_output callback function. The setting of the pin
+ * mux function as 'gpio output' will be handled by the pinctrl susbsystem
+ * interface.
+ */
+static int samsung_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
+							int value)
+{
+	samsung_gpio_set(gc, offset, value);
+	return pinctrl_gpio_direction_output(gc->base + offset);
+}
+
+/*
+ * Parse the pin names listed in the 'samsung,pins' property and convert it
+ * into a list of gpio numbers are create a pin group from it.
+ */
+static int __init samsung_pinctrl_parse_dt_pins(struct platform_device *pdev,
+			struct device_node *cfg_np, struct pinctrl_desc *pctl,
+			unsigned int **pin_list, unsigned int *npins)
+{
+	struct device *dev = &pdev->dev;
+	struct property *prop;
+	struct pinctrl_pin_desc const *pdesc = pctl->pins;
+	unsigned int idx = 0, cnt;
+	const char *pin_name;
+
+	*npins = of_property_count_strings(cfg_np, "samsung,pins");
+	if (*npins < 0) {
+		dev_err(dev, "invalid pin list in %s node", cfg_np->name);
+		return -EINVAL;
+	}
+
+	*pin_list = devm_kzalloc(dev, *npins * sizeof(**pin_list), GFP_KERNEL);
+	if (!*pin_list) {
+		dev_err(dev, "failed to allocate memory for pin list\n");
+		return -ENOMEM;
+	}
+
+	of_property_for_each_string(cfg_np, "samsung,pins", prop, pin_name) {
+		for (cnt = 0; cnt < pctl->npins; cnt++) {
+			if (pdesc[cnt].name) {
+				if (!strcmp(pin_name, pdesc[cnt].name)) {
+					(*pin_list)[idx++] = pdesc[cnt].number;
+					break;
+				}
+			}
+		}
+		if (cnt == pctl->npins) {
+			dev_err(dev, "pin %s not valid in %s node\n",
+					pin_name, cfg_np->name);
+			devm_kfree(dev, *pin_list);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Parse the information about all the available pin groups and pin functions
+ * from device node of the pin-controller. A pin group is formed with all
+ * the pins listed in the "samsung,pins" property.
+ */
+static int __init samsung_pinctrl_parse_dt(struct platform_device *pdev,
+				struct samsung_pinctrl_drv_data *drvdata)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *dev_np = dev->of_node;
+	struct device_node *cfg_np;
+	struct samsung_pin_group *groups, *grp;
+	struct samsung_pmx_func *functions, *func;
+	unsigned *pin_list;
+	unsigned int npins, grp_cnt, func_idx = 0;
+	char *gname, *fname;
+	int ret;
+
+	grp_cnt = of_get_child_count(dev_np);
+	if (!grp_cnt)
+		return -EINVAL;
+
+	groups = devm_kzalloc(dev, grp_cnt * sizeof(*groups), GFP_KERNEL);
+	if (!groups) {
+		dev_err(dev, "failed allocate memory for ping group list\n");
+		return -EINVAL;
+	}
+	grp = groups;
+
+	functions = devm_kzalloc(dev, grp_cnt * sizeof(*functions), GFP_KERNEL);
+	if (!functions) {
+		dev_err(dev, "failed to allocate memory for function list\n");
+		return -EINVAL;
+	}
+	func = functions;
+
+	/*
+	 * Iterate over all the child nodes of the pin controller node
+	 * and create pin groups and pin function lists.
+	 */
+	for_each_child_of_node(dev_np, cfg_np) {
+		u32 function;
+		if (of_find_property(cfg_np, "interrupt-controller", NULL))
+			continue;
+
+		ret = samsung_pinctrl_parse_dt_pins(pdev, cfg_np,
+					&drvdata->pctl,	&pin_list, &npins);
+		if (ret)
+			return ret;
+
+		/* derive pin group name from the node name */
+		gname = devm_kzalloc(dev, strlen(cfg_np->name) + GSUFFIX_LEN,
+					GFP_KERNEL);
+		if (!gname) {
+			dev_err(dev, "failed to alloc memory for group name\n");
+			return -ENOMEM;
+		}
+		sprintf(gname, "%s%s", cfg_np->name, GROUP_SUFFIX);
+
+		grp->name = gname;
+		grp->pins = pin_list;
+		grp->num_pins = npins;
+		of_property_read_u32(cfg_np, "samsung,pin-function", &function);
+		grp->func = function;
+		grp++;
+
+		if (!of_find_property(cfg_np, "samsung,pin-function", NULL))
+			continue;
+
+		/* derive function name from the node name */
+		fname = devm_kzalloc(dev, strlen(cfg_np->name) + FSUFFIX_LEN,
+					GFP_KERNEL);
+		if (!fname) {
+			dev_err(dev, "failed to alloc memory for func name\n");
+			return -ENOMEM;
+		}
+		sprintf(fname, "%s%s", cfg_np->name, FUNCTION_SUFFIX);
+
+		func->name = fname;
+		func->groups = devm_kzalloc(dev, sizeof(char *), GFP_KERNEL);
+		if (!func->groups) {
+			dev_err(dev, "failed to alloc memory for group list "
+					"in pin function");
+			return -ENOMEM;
+		}
+		func->groups[0] = gname;
+		func->num_groups = 1;
+		func++;
+		func_idx++;
+	}
+
+	drvdata->pin_groups = groups;
+	drvdata->nr_groups = grp_cnt;
+	drvdata->pmx_functions = functions;
+	drvdata->nr_functions = func_idx;
+
+	return 0;
+}
+
+/* register the pinctrl interface with the pinctrl subsystem */
+static int __init samsung_pinctrl_register(struct platform_device *pdev,
+				struct samsung_pinctrl_drv_data *drvdata)
+{
+	struct pinctrl_desc *ctrldesc = &drvdata->pctl;
+	struct pinctrl_pin_desc *pindesc, *pdesc;
+	struct samsung_pin_bank *pin_bank;
+	char *pin_names;
+	int pin, bank, ret;
+
+	ctrldesc->name = "samsung-pinctrl";
+	ctrldesc->owner = THIS_MODULE;
+	ctrldesc->pctlops = &samsung_pctrl_ops;
+	ctrldesc->pmxops = &samsung_pinmux_ops;
+	ctrldesc->confops = &samsung_pinconf_ops;
+
+	pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
+			drvdata->ctrl->nr_pins, GFP_KERNEL);
+	if (!pindesc) {
+		dev_err(&pdev->dev, "mem alloc for pin descriptors failed\n");
+		return -ENOMEM;
+	}
+	ctrldesc->pins = pindesc;
+	ctrldesc->npins = drvdata->ctrl->nr_pins;
+	ctrldesc->npins = drvdata->ctrl->nr_pins;
+
+	/* dynamically populate the pin number and pin name for pindesc */
+	for (pin = 0, pdesc = pindesc; pin < ctrldesc->npins; pin++, pdesc++)
+		pdesc->number = pin + drvdata->ctrl->base;
+
+	/*
+	 * allocate space for storing the dynamically generated names for all
+	 * the pins which belong to this pin-controller.
+	 */
+	pin_names = devm_kzalloc(&pdev->dev, sizeof(char) * PIN_NAME_LENGTH *
+					drvdata->ctrl->nr_pins, GFP_KERNEL);
+	if (!pin_names) {
+		dev_err(&pdev->dev, "mem alloc for pin names failed\n");
+		return -ENOMEM;
+	}
+
+	/* for each pin, the name of the pin is pin-bank name + pin number */
+	for (bank = 0; bank < drvdata->ctrl->nr_banks; bank++) {
+		pin_bank = &drvdata->ctrl->pin_banks[bank];
+		for (pin = 0; pin < pin_bank->nr_pins; pin++) {
+			sprintf(pin_names, "%s-%d", pin_bank->name, pin);
+			pdesc = pindesc + pin_bank->pin_base + pin;
+			pdesc->name = pin_names;
+			pin_names += PIN_NAME_LENGTH;
+		}
+	}
+
+	drvdata->pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, drvdata);
+	if (!drvdata->pctl_dev) {
+		dev_err(&pdev->dev, "could not register pinctrl driver\n");
+		return -EINVAL;
+	}
+
+	drvdata->grange.name = "samsung-pctrl-gpio-range";
+	drvdata->grange.id = 0;
+	drvdata->grange.base = drvdata->ctrl->base;
+	drvdata->grange.npins = drvdata->ctrl->nr_pins;
+	drvdata->grange.gc = drvdata->gc;
+	pinctrl_add_gpio_range(drvdata->pctl_dev, &drvdata->grange);
+
+	ret = samsung_pinctrl_parse_dt(pdev, drvdata);
+	if (ret) {
+		pinctrl_unregister(drvdata->pctl_dev);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* register the gpiolib interface with the gpiolib subsystem */
+static int __init samsung_gpiolib_register(struct platform_device *pdev,
+				struct samsung_pinctrl_drv_data *drvdata)
+{
+	struct gpio_chip *gc;
+	int ret;
+
+	gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+	if (!gc) {
+		dev_err(&pdev->dev, "mem alloc for gpio_chip failed\n");
+		return -ENOMEM;
+	}
+
+	drvdata->gc = gc;
+	gc->base = drvdata->ctrl->base;
+	gc->ngpio = drvdata->ctrl->nr_pins;
+	gc->dev = &pdev->dev;
+	gc->set = samsung_gpio_set;
+	gc->get = samsung_gpio_get;
+	gc->direction_input = samsung_gpio_direction_input;
+	gc->direction_output = samsung_gpio_direction_output;
+	gc->label = drvdata->ctrl->label;
+	gc->owner = THIS_MODULE;
+	ret = gpiochip_add(gc);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register gpio_chip %s, error "
+					"code: %d\n", gc->label, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* unregister the gpiolib interface with the gpiolib subsystem */
+static int __init samsung_gpiolib_unregister(struct platform_device *pdev,
+				struct samsung_pinctrl_drv_data *drvdata)
+{
+	int ret = gpiochip_remove(drvdata->gc);
+	if (ret) {
+		dev_err(&pdev->dev, "gpio chip remove failed\n");
+		return ret;
+	}
+	return 0;
+}
+
+static const struct of_device_id samsung_pinctrl_dt_match[];
+
+/* retrieve the soc specific data */
+static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data(
+				struct platform_device *pdev)
+{
+	int id;
+	const struct of_device_id *match;
+	const struct device_node *node = pdev->dev.of_node;
+
+	id = of_alias_get_id(pdev->dev.of_node, "pinctrl");
+	if (id < 0) {
+		dev_err(&pdev->dev, "failed to get alias id\n");
+		return NULL;
+	}
+	match = of_match_node(samsung_pinctrl_dt_match, node);
+	return (struct samsung_pin_ctrl *)match->data + id;
+}
+
+static int __devinit samsung_pinctrl_probe(struct platform_device *pdev)
+{
+	struct samsung_pinctrl_drv_data *drvdata;
+	struct device *dev = &pdev->dev;
+	struct samsung_pin_ctrl *ctrl;
+	struct resource *res;
+	int ret;
+
+	if (!dev->of_node) {
+		dev_err(dev, "device tree node not found\n");
+		return -ENODEV;
+	}
+
+	ctrl = samsung_pinctrl_get_soc_data(pdev);
+	if (!ctrl) {
+		dev_err(&pdev->dev, "driver data not available\n");
+		return -EINVAL;
+	}
+
+	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata) {
+		dev_err(dev, "failed to allocate memory for driver's "
+				"private data\n");
+		return -ENOMEM;
+	}
+	drvdata->ctrl = ctrl;
+	drvdata->dev = dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "cannot find IO resource\n");
+		return -ENOENT;
+	}
+
+	drvdata->virt_base = devm_request_and_ioremap(&pdev->dev, res);
+	if (!drvdata->virt_base) {
+		dev_err(dev, "ioremap failed\n");
+		return -ENODEV;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (res)
+		drvdata->irq = res->start;
+
+	ret = samsung_gpiolib_register(pdev, drvdata);
+	if (ret)
+		return ret;
+
+	ret = samsung_pinctrl_register(pdev, drvdata);
+	if (ret) {
+		samsung_gpiolib_unregister(pdev, drvdata);
+		return ret;
+	}
+
+	if (ctrl->eint_gpio_init)
+		ctrl->eint_gpio_init(drvdata);
+	if (ctrl->eint_wkup_init)
+		ctrl->eint_wkup_init(drvdata);
+
+	platform_set_drvdata(pdev, drvdata);
+	return 0;
+}
+
+static const struct of_device_id samsung_pinctrl_dt_match[] = {
+	{ .compatible = "samsung,pinctrl-exynos4210",
+		.data = (void *)exynos4210_pin_ctrl },
+	{},
+};
+MODULE_DEVICE_TABLE(of, samsung_pinctrl_dt_match);
+
+static struct platform_driver samsung_pinctrl_driver = {
+	.probe		= samsung_pinctrl_probe,
+	.driver = {
+		.name	= "samsung-pinctrl",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(samsung_pinctrl_dt_match),
+	},
+};
+
+static int __init samsung_pinctrl_drv_register(void)
+{
+	return platform_driver_register(&samsung_pinctrl_driver);
+}
+postcore_initcall(samsung_pinctrl_drv_register);
+
+static void __exit samsung_pinctrl_drv_unregister(void)
+{
+	platform_driver_unregister(&samsung_pinctrl_driver);
+}
+module_exit(samsung_pinctrl_drv_unregister);
+
+MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>");
+MODULE_DESCRIPTION("Samsung pinctrl driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h
new file mode 100644
index 00000000000..b8956934cda
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-samsung.h
@@ -0,0 +1,239 @@
+/*
+ * pin-controller/pin-mux/pin-config/gpio-driver for Samsung's SoC's.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ *		http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __PINCTRL_SAMSUNG_H
+#define __PINCTRL_SAMSUNG_H
+
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+
+/* register offsets within a pin bank */
+#define DAT_REG		0x4
+#define PUD_REG		0x8
+#define DRV_REG		0xC
+#define CONPDN_REG	0x10
+#define PUDPDN_REG	0x14
+
+/* pinmux function number for pin as gpio output line */
+#define FUNC_OUTPUT	0x1
+
+/**
+ * enum pincfg_type - possible pin configuration types supported.
+ * @PINCFG_TYPE_PUD: Pull up/down configuration.
+ * @PINCFG_TYPE_DRV: Drive strength configuration.
+ * @PINCFG_TYPE_CON_PDN: Pin function in power down mode.
+ * @PINCFG_TYPE_PUD_PDN: Pull up/down configuration in power down mode.
+ */
+enum pincfg_type {
+	PINCFG_TYPE_PUD,
+	PINCFG_TYPE_DRV,
+	PINCFG_TYPE_CON_PDN,
+	PINCFG_TYPE_PUD_PDN,
+};
+
+/*
+ * pin configuration (pull up/down and drive strength) type and its value are
+ * packed together into a 16-bits. The upper 8-bits represent the configuration
+ * type and the lower 8-bits hold the value of the configuration type.
+ */
+#define PINCFG_TYPE_MASK		0xFF
+#define PINCFG_VALUE_SHIFT		8
+#define PINCFG_VALUE_MASK		(0xFF << PINCFG_VALUE_SHIFT)
+#define PINCFG_PACK(type, value)	(((value) << PINCFG_VALUE_SHIFT) | type)
+#define PINCFG_UNPACK_TYPE(cfg)		((cfg) & PINCFG_TYPE_MASK)
+#define PINCFG_UNPACK_VALUE(cfg)	(((cfg) & PINCFG_VALUE_MASK) >> \
+						PINCFG_VALUE_SHIFT)
+/**
+ * enum eint_type - possible external interrupt types.
+ * @EINT_TYPE_NONE: bank does not support external interrupts
+ * @EINT_TYPE_GPIO: bank supportes external gpio interrupts
+ * @EINT_TYPE_WKUP: bank supportes external wakeup interrupts
+ *
+ * Samsung GPIO controller groups all the available pins into banks. The pins
+ * in a pin bank can support external gpio interrupts or external wakeup
+ * interrupts or no interrupts at all. From a software perspective, the only
+ * difference between external gpio and external wakeup interrupts is that
+ * the wakeup interrupts can additionally wakeup the system if it is in
+ * suspended state.
+ */
+enum eint_type {
+	EINT_TYPE_NONE,
+	EINT_TYPE_GPIO,
+	EINT_TYPE_WKUP,
+};
+
+/* maximum length of a pin in pin descriptor (example: "gpa0-0") */
+#define PIN_NAME_LENGTH	10
+
+#define PIN_GROUP(n, p, f)				\
+	{						\
+		.name		= n,			\
+		.pins		= p,			\
+		.num_pins	= ARRAY_SIZE(p),	\
+		.func		= f			\
+	}
+
+#define PMX_FUNC(n, g)					\
+	{						\
+		.name		= n,			\
+		.groups		= g,			\
+		.num_groups	= ARRAY_SIZE(g),	\
+	}
+
+struct samsung_pinctrl_drv_data;
+
+/**
+ * struct samsung_pin_bank: represent a controller pin-bank.
+ * @reg_offset: starting offset of the pin-bank registers.
+ * @pin_base: starting pin number of the bank.
+ * @nr_pins: number of pins included in this bank.
+ * @func_width: width of the function selector bit field.
+ * @pud_width: width of the pin pull up/down selector bit field.
+ * @drv_width: width of the pin driver strength selector bit field.
+ * @conpdn_width: width of the sleep mode function selector bin field.
+ * @pudpdn_width: width of the sleep mode pull up/down selector bit field.
+ * @eint_type: type of the external interrupt supported by the bank.
+ * @irq_base: starting controller local irq number of the bank.
+ * @name: name to be prefixed for each pin in this pin bank.
+ */
+struct samsung_pin_bank {
+	u32		pctl_offset;
+	u32		pin_base;
+	u8		nr_pins;
+	u8		func_width;
+	u8		pud_width;
+	u8		drv_width;
+	u8		conpdn_width;
+	u8		pudpdn_width;
+	enum eint_type	eint_type;
+	u32		irq_base;
+	char		*name;
+};
+
+/**
+ * struct samsung_pin_ctrl: represent a pin controller.
+ * @pin_banks: list of pin banks included in this controller.
+ * @nr_banks: number of pin banks.
+ * @base: starting system wide pin number.
+ * @nr_pins: number of pins supported by the controller.
+ * @nr_gint: number of external gpio interrupts supported.
+ * @nr_wint: number of external wakeup interrupts supported.
+ * @geint_con: offset of the ext-gpio controller registers.
+ * @geint_mask: offset of the ext-gpio interrupt mask registers.
+ * @geint_pend: offset of the ext-gpio interrupt pending registers.
+ * @weint_con: offset of the ext-wakeup controller registers.
+ * @weint_mask: offset of the ext-wakeup interrupt mask registers.
+ * @weint_pend: offset of the ext-wakeup interrupt pending registers.
+ * @svc: offset of the interrupt service register.
+ * @eint_gpio_init: platform specific callback to setup the external gpio
+ *	interrupts for the controller.
+ * @eint_wkup_init: platform specific callback to setup the external wakeup
+ *	interrupts for the controller.
+ * @label: for debug information.
+ */
+struct samsung_pin_ctrl {
+	struct samsung_pin_bank	*pin_banks;
+	u32		nr_banks;
+
+	u32		base;
+	u32		nr_pins;
+	u32		nr_gint;
+	u32		nr_wint;
+
+	u32		geint_con;
+	u32		geint_mask;
+	u32		geint_pend;
+
+	u32		weint_con;
+	u32		weint_mask;
+	u32		weint_pend;
+
+	u32		svc;
+
+	int		(*eint_gpio_init)(struct samsung_pinctrl_drv_data *);
+	int		(*eint_wkup_init)(struct samsung_pinctrl_drv_data *);
+	char		*label;
+};
+
+/**
+ * struct samsung_pinctrl_drv_data: wrapper for holding driver data together.
+ * @virt_base: register base address of the controller.
+ * @dev: device instance representing the controller.
+ * @irq: interrpt number used by the controller to notify gpio interrupts.
+ * @ctrl: pin controller instance managed by the driver.
+ * @pctl: pin controller descriptor registered with the pinctrl subsystem.
+ * @pctl_dev: cookie representing pinctrl device instance.
+ * @pin_groups: list of pin groups available to the driver.
+ * @nr_groups: number of such pin groups.
+ * @pmx_functions: list of pin functions available to the driver.
+ * @nr_function: number of such pin functions.
+ * @gc: gpio_chip instance registered with gpiolib.
+ * @grange: linux gpio pin range supported by this controller.
+ */
+struct samsung_pinctrl_drv_data {
+	void __iomem			*virt_base;
+	struct device			*dev;
+	int				irq;
+
+	struct samsung_pin_ctrl		*ctrl;
+	struct pinctrl_desc		pctl;
+	struct pinctrl_dev		*pctl_dev;
+
+	const struct samsung_pin_group	*pin_groups;
+	unsigned int			nr_groups;
+	const struct samsung_pmx_func	*pmx_functions;
+	unsigned int			nr_functions;
+
+	struct irq_domain		*gpio_irqd;
+	struct irq_domain		*wkup_irqd;
+
+	struct gpio_chip		*gc;
+	struct pinctrl_gpio_range	grange;
+};
+
+/**
+ * struct samsung_pin_group: represent group of pins of a pinmux function.
+ * @name: name of the pin group, used to lookup the group.
+ * @pins: the pins included in this group.
+ * @num_pins: number of pins included in this group.
+ * @func: the function number to be programmed when selected.
+ */
+struct samsung_pin_group {
+	const char		*name;
+	const unsigned int	*pins;
+	u8			num_pins;
+	u8			func;
+};
+
+/**
+ * struct samsung_pmx_func: represent a pin function.
+ * @name: name of the pin function, used to lookup the function.
+ * @groups: one or more names of pin groups that provide this function.
+ * @num_groups: number of groups included in @groups.
+ */
+struct samsung_pmx_func {
+	const char		*name;
+	const char		**groups;
+	u8			num_groups;
+};
+
+/* list of all exported SoC specific data */
+extern struct samsung_pin_ctrl exynos4210_pin_ctrl[];
+
+#endif /* __PINCTRL_SAMSUNG_H */
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 76a4260f20f..726a729a2ec 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -26,7 +26,8 @@
 #include "core.h"
 
 #define DRIVER_NAME			"pinctrl-single"
-#define PCS_MUX_NAME			"pinctrl-single,pins"
+#define PCS_MUX_PINS_NAME		"pinctrl-single,pins"
+#define PCS_MUX_BITS_NAME		"pinctrl-single,bits"
 #define PCS_REG_NAME_LEN		((sizeof(unsigned long) * 2) + 1)
 #define PCS_OFF_DISABLED		~0U
 
@@ -54,6 +55,7 @@ struct pcs_pingroup {
 struct pcs_func_vals {
 	void __iomem *reg;
 	unsigned val;
+	unsigned mask;
 };
 
 /**
@@ -139,6 +141,7 @@ struct pcs_device {
 	unsigned fshift;
 	unsigned foff;
 	unsigned fmax;
+	bool bits_per_mux;
 	struct pcs_name *names;
 	struct pcs_data pins;
 	struct radix_tree_root pgtree;
@@ -243,7 +246,15 @@ static void pcs_pin_dbg_show(struct pinctrl_dev *pctldev,
 					struct seq_file *s,
 					unsigned offset)
 {
-	seq_printf(s, " " DRIVER_NAME);
+	struct pcs_device *pcs;
+	unsigned val;
+
+	pcs = pinctrl_dev_get_drvdata(pctldev);
+
+	val = pcs->read(pcs->base + offset);
+	val &= pcs->fmask;
+
+	seq_printf(s, "%08x %s " , val, DRIVER_NAME);
 }
 
 static void pcs_dt_free_map(struct pinctrl_dev *pctldev,
@@ -332,12 +343,17 @@ static int pcs_enable(struct pinctrl_dev *pctldev, unsigned fselector,
 
 	for (i = 0; i < func->nvals; i++) {
 		struct pcs_func_vals *vals;
-		unsigned val;
+		unsigned val, mask;
 
 		vals = &func->vals[i];
 		val = pcs->read(vals->reg);
-		val &= ~pcs->fmask;
-		val |= vals->val;
+		if (!vals->mask)
+			mask = pcs->fmask;
+		else
+			mask = pcs->fmask & vals->mask;
+
+		val &= ~mask;
+		val |= (vals->val & mask);
 		pcs->write(val, vals->reg);
 	}
 
@@ -657,18 +673,29 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
 {
 	struct pcs_func_vals *vals;
 	const __be32 *mux;
-	int size, rows, *pins, index = 0, found = 0, res = -ENOMEM;
+	int size, params, rows, *pins, index = 0, found = 0, res = -ENOMEM;
 	struct pcs_function *function;
 
-	mux = of_get_property(np, PCS_MUX_NAME, &size);
-	if ((!mux) || (size < sizeof(*mux) * 2)) {
-		dev_err(pcs->dev, "bad data for mux %s\n",
-			np->name);
+	if (pcs->bits_per_mux) {
+		params = 3;
+		mux = of_get_property(np, PCS_MUX_BITS_NAME, &size);
+	} else {
+		params = 2;
+		mux = of_get_property(np, PCS_MUX_PINS_NAME, &size);
+	}
+
+	if (!mux) {
+		dev_err(pcs->dev, "no valid property for %s\n", np->name);
+		return -EINVAL;
+	}
+
+	if (size < (sizeof(*mux) * params)) {
+		dev_err(pcs->dev, "bad data for %s\n", np->name);
 		return -EINVAL;
 	}
 
 	size /= sizeof(*mux);	/* Number of elements in array */
-	rows = size / 2;	/* Each row is a key value pair */
+	rows = size / params;
 
 	vals = devm_kzalloc(pcs->dev, sizeof(*vals) * rows, GFP_KERNEL);
 	if (!vals)
@@ -686,6 +713,10 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
 		val = be32_to_cpup(mux + index++);
 		vals[found].reg = pcs->base + offset;
 		vals[found].val = val;
+		if (params == 3) {
+			val = be32_to_cpup(mux + index++);
+			vals[found].mask = val;
+		}
 
 		pin = pcs_get_pin_by_offset(pcs, offset);
 		if (pin < 0) {
@@ -883,6 +914,9 @@ static int __devinit pcs_probe(struct platform_device *pdev)
 	if (ret)
 		pcs->foff = PCS_OFF_DISABLED;
 
+	pcs->bits_per_mux = of_property_read_bool(np,
+						  "pinctrl-single,bit-per-mux");
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(pcs->dev, "could not get resource\n");
diff --git a/drivers/pinctrl/pinctrl-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index 2aae8a8978e..675497c1514 100644
--- a/drivers/pinctrl/pinctrl-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -17,6 +17,7 @@
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
 #include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
@@ -24,6 +25,7 @@
 #include <linux/bitops.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
+#include <asm/mach/irq.h>
 
 #define DRIVER_NAME "pinmux-sirf"
 
@@ -68,6 +70,10 @@ static DEFINE_SPINLOCK(sgpio_lock);
  * refer to CS-131858-DC-6A.xls
  */
 static const struct pinctrl_pin_desc sirfsoc_pads[] = {
+	PINCTRL_PIN(0, "gpio0-0"),
+	PINCTRL_PIN(1, "gpio0-1"),
+	PINCTRL_PIN(2, "gpio0-2"),
+	PINCTRL_PIN(3, "gpio0-3"),
 	PINCTRL_PIN(4, "pwm0"),
 	PINCTRL_PIN(5, "pwm1"),
 	PINCTRL_PIN(6, "pwm2"),
@@ -76,7 +82,9 @@ static const struct pinctrl_pin_desc sirfsoc_pads[] = {
 	PINCTRL_PIN(9, "odo_0"),
 	PINCTRL_PIN(10, "odo_1"),
 	PINCTRL_PIN(11, "dr_dir"),
+	PINCTRL_PIN(12, "viprom_fa"),
 	PINCTRL_PIN(13, "scl_1"),
+	PINCTRL_PIN(14, "ntrst"),
 	PINCTRL_PIN(15, "sda_1"),
 	PINCTRL_PIN(16, "x_ldd[16]"),
 	PINCTRL_PIN(17, "x_ldd[17]"),
@@ -916,11 +924,66 @@ static void sirfsoc_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s
 	seq_printf(s, " " DRIVER_NAME);
 }
 
+static int sirfsoc_dt_node_to_map(struct pinctrl_dev *pctldev,
+				 struct device_node *np_config,
+				 struct pinctrl_map **map, unsigned *num_maps)
+{
+	struct sirfsoc_pmx *spmx = pinctrl_dev_get_drvdata(pctldev);
+	struct device_node *np;
+	struct property *prop;
+	const char *function, *group;
+	int ret, index = 0, count = 0;
+
+	/* calculate number of maps required */
+	for_each_child_of_node(np_config, np) {
+		ret = of_property_read_string(np, "sirf,function", &function);
+		if (ret < 0)
+			return ret;
+
+		ret = of_property_count_strings(np, "sirf,pins");
+		if (ret < 0)
+			return ret;
+
+		count += ret;
+	}
+
+	if (!count) {
+		dev_err(spmx->dev, "No child nodes passed via DT\n");
+		return -ENODEV;
+	}
+
+	*map = kzalloc(sizeof(**map) * count, GFP_KERNEL);
+	if (!*map)
+		return -ENOMEM;
+
+	for_each_child_of_node(np_config, np) {
+		of_property_read_string(np, "sirf,function", &function);
+		of_property_for_each_string(np, "sirf,pins", prop, group) {
+			(*map)[index].type = PIN_MAP_TYPE_MUX_GROUP;
+			(*map)[index].data.mux.group = group;
+			(*map)[index].data.mux.function = function;
+			index++;
+		}
+	}
+
+	*num_maps = count;
+
+	return 0;
+}
+
+static void sirfsoc_dt_free_map(struct pinctrl_dev *pctldev,
+		struct pinctrl_map *map, unsigned num_maps)
+{
+	kfree(map);
+}
+
 static struct pinctrl_ops sirfsoc_pctrl_ops = {
 	.get_groups_count = sirfsoc_get_groups_count,
 	.get_group_name = sirfsoc_get_group_name,
 	.get_group_pins = sirfsoc_get_group_pins,
 	.pin_dbg_show = sirfsoc_pin_dbg_show,
+	.dt_node_to_map = sirfsoc_dt_node_to_map,
+	.dt_free_map = sirfsoc_dt_free_map,
 };
 
 struct sirfsoc_pmx_func {
@@ -1204,8 +1267,10 @@ static int __devinit sirfsoc_pinmux_probe(struct platform_device *pdev)
 		goto out_no_pmx;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(sirfsoc_gpio_ranges); i++)
+	for (i = 0; i < ARRAY_SIZE(sirfsoc_gpio_ranges); i++) {
+		sirfsoc_gpio_ranges[i].gc = &sgpio_bank[i].chip.gc;
 		pinctrl_add_gpio_range(spmx->pmx, &sirfsoc_gpio_ranges[i]);
+	}
 
 	dev_info(&pdev->dev, "initialized SIRFSOC pinmux driver\n");
 
@@ -1217,12 +1282,11 @@ out_no_rsc_remap:
 	iounmap(spmx->gpio_virtbase);
 out_no_gpio_remap:
 	platform_set_drvdata(pdev, NULL);
-	devm_kfree(&pdev->dev, spmx);
 	return ret;
 }
 
 static const struct of_device_id pinmux_ids[] __devinitconst = {
-	{ .compatible = "sirf,prima2-gpio-pinmux" },
+	{ .compatible = "sirf,prima2-pinctrl" },
 	{}
 };
 
@@ -1420,6 +1484,9 @@ static void sirfsoc_gpio_handle_irq(unsigned int irq, struct irq_desc *desc)
 	u32 status, ctrl;
 	int idx = 0;
 	unsigned int first_irq;
+	struct irq_chip *chip = irq_get_chip(irq);
+
+	chained_irq_enter(chip, desc);
 
 	status = readl(bank->chip.regs + SIRFSOC_GPIO_INT_STATUS(bank->id));
 	if (!status) {
@@ -1448,20 +1515,17 @@ static void sirfsoc_gpio_handle_irq(unsigned int irq, struct irq_desc *desc)
 		idx++;
 		status = status >> 1;
 	}
+
+	chained_irq_exit(chip, desc);
 }
 
 static inline void sirfsoc_gpio_set_input(struct sirfsoc_gpio_bank *bank, unsigned ctrl_offset)
 {
 	u32 val;
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
 
 	val = readl(bank->chip.regs + ctrl_offset);
 	val &= ~SIRFSOC_GPIO_CTL_OUT_EN_MASK;
 	writel(val, bank->chip.regs + ctrl_offset);
-
-	spin_unlock_irqrestore(&bank->lock, flags);
 }
 
 static int sirfsoc_gpio_request(struct gpio_chip *chip, unsigned offset)
@@ -1671,6 +1735,8 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
 		irq_set_handler_data(bank->parent_irq, bank);
 	}
 
+	return 0;
+
 out:
 	iounmap(regs);
 	return err;
diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
index ae52e4e5d09..729b686c3ad 100644
--- a/drivers/pinctrl/pinctrl-tegra.c
+++ b/drivers/pinctrl/pinctrl-tegra.c
@@ -30,8 +30,6 @@
 #include <linux/pinctrl/pinconf.h>
 #include <linux/slab.h>
 
-#include <mach/pinconf-tegra.h>
-
 #include "core.h"
 #include "pinctrl-tegra.h"
 
diff --git a/drivers/pinctrl/pinctrl-tegra.h b/drivers/pinctrl/pinctrl-tegra.h
index 705c007a38c..62e380965c6 100644
--- a/drivers/pinctrl/pinctrl-tegra.h
+++ b/drivers/pinctrl/pinctrl-tegra.h
@@ -16,6 +16,50 @@
 #ifndef __PINMUX_TEGRA_H__
 #define __PINMUX_TEGRA_H__
 
+enum tegra_pinconf_param {
+	/* argument: tegra_pinconf_pull */
+	TEGRA_PINCONF_PARAM_PULL,
+	/* argument: tegra_pinconf_tristate */
+	TEGRA_PINCONF_PARAM_TRISTATE,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_ENABLE_INPUT,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_OPEN_DRAIN,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_LOCK,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_IORESET,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_HIGH_SPEED_MODE,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_SCHMITT,
+	/* argument: Boolean */
+	TEGRA_PINCONF_PARAM_LOW_POWER_MODE,
+	/* argument: Integer, range is HW-dependant */
+	TEGRA_PINCONF_PARAM_DRIVE_DOWN_STRENGTH,
+	/* argument: Integer, range is HW-dependant */
+	TEGRA_PINCONF_PARAM_DRIVE_UP_STRENGTH,
+	/* argument: Integer, range is HW-dependant */
+	TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING,
+	/* argument: Integer, range is HW-dependant */
+	TEGRA_PINCONF_PARAM_SLEW_RATE_RISING,
+};
+
+enum tegra_pinconf_pull {
+	TEGRA_PINCONFIG_PULL_NONE,
+	TEGRA_PINCONFIG_PULL_DOWN,
+	TEGRA_PINCONFIG_PULL_UP,
+};
+
+enum tegra_pinconf_tristate {
+	TEGRA_PINCONFIG_DRIVEN,
+	TEGRA_PINCONFIG_TRISTATE,
+};
+
+#define TEGRA_PINCONF_PACK(_param_, _arg_) ((_param_) << 16 | (_arg_))
+#define TEGRA_PINCONF_UNPACK_PARAM(_conf_) ((_conf_) >> 16)
+#define TEGRA_PINCONF_UNPACK_ARG(_conf_) ((_conf_) & 0xffff)
+
 /**
  * struct tegra_function - Tegra pinctrl mux function
  * @name: The name of the function, exported to pinctrl core.
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index a7ad8c112d9..309f5b9a70e 100644
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -1121,10 +1121,8 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
 	upmx->dev = &pdev->dev;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		ret = -ENOENT;
-		goto out_no_resource;
-	}
+	if (!res)
+		return -ENOENT;
 	upmx->phybase = res->start;
 	upmx->physize = resource_size(res);
 
@@ -1165,8 +1163,6 @@ out_no_remap:
 	platform_set_drvdata(pdev, NULL);
 out_no_memregion:
 	release_mem_region(upmx->phybase, upmx->physize);
-out_no_resource:
-	devm_kfree(&pdev->dev, upmx);
 	return ret;
 }
 
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 3d5ac73bd5a..9301a7a95ef 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -232,14 +232,11 @@ int pinmux_request_gpio(struct pinctrl_dev *pctldev,
 			struct pinctrl_gpio_range *range,
 			unsigned pin, unsigned gpio)
 {
-	char gpiostr[16];
 	const char *owner;
 	int ret;
 
 	/* Conjure some name stating what chip and pin this is taken by */
-	snprintf(gpiostr, 15, "%s:%d", range->name, gpio);
-
-	owner = kstrdup(gpiostr, GFP_KERNEL);
+	owner = kasprintf(GFP_KERNEL, "%s:%d", range->name, gpio);
 	if (!owner)
 		return -EINVAL;
 
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 2a262f5c5c0..c86bae828c2 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -289,6 +289,7 @@ config IDEAPAD_LAPTOP
 	tristate "Lenovo IdeaPad Laptop Extras"
 	depends on ACPI
 	depends on RFKILL && INPUT
+	depends on SERIO_I8042
 	select INPUT_SPARSEKMAP
 	help
 	  This is a driver for the rfkill switches on Lenovo IdeaPad netbooks.
@@ -758,8 +759,11 @@ config SAMSUNG_Q10
 
 config APPLE_GMUX
 	tristate "Apple Gmux Driver"
+	depends on ACPI
 	depends on PNP
-	select BACKLIGHT_CLASS_DEVICE
+	depends on BACKLIGHT_CLASS_DEVICE
+	depends on BACKLIGHT_APPLE=n || BACKLIGHT_APPLE
+	depends on ACPI_VIDEO=n || ACPI_VIDEO
 	---help---
 	  This driver provides support for the gmux device found on many
 	  Apple laptops, which controls the display mux for the hybrid
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 3782e1cd369..934d861a323 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -2196,10 +2196,8 @@ static int __init acer_wmi_init(void)
 		interface->capability &= ~ACER_CAP_BRIGHTNESS;
 		pr_info("Brightness must be controlled by acpi video driver\n");
 	} else {
-#ifdef CONFIG_ACPI_VIDEO
 		pr_info("Disabling ACPI video driver\n");
 		acpi_video_unregister();
-#endif
 	}
 
 	if (wmi_has_guid(WMID_GUID3)) {
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 905fa01ac8d..db8f63841b4 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -2,6 +2,7 @@
  *  Gmux driver for Apple laptops
  *
  *  Copyright (C) Canonical Ltd. <seth.forshee@canonical.com>
+ *  Copyright (C) 2010-2012 Andreas Heider <andreas@meetr.de>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
@@ -18,16 +19,30 @@
 #include <linux/pnp.h>
 #include <linux/apple_bl.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/vga_switcheroo.h>
 #include <acpi/video.h>
 #include <asm/io.h>
 
 struct apple_gmux_data {
 	unsigned long iostart;
 	unsigned long iolen;
+	bool indexed;
+	struct mutex index_lock;
 
 	struct backlight_device *bdev;
+
+	/* switcheroo data */
+	acpi_handle dhandle;
+	int gpe;
+	enum vga_switcheroo_client_id resume_client_id;
+	enum vga_switcheroo_state power_state;
+	struct completion powerchange_done;
 };
 
+static struct apple_gmux_data *apple_gmux_data;
+
 /*
  * gmux port offsets. Many of these are not yet used, but may be in the
  * future, and it's useful to have them documented here anyhow.
@@ -45,6 +60,9 @@ struct apple_gmux_data {
 #define GMUX_PORT_DISCRETE_POWER	0x50
 #define GMUX_PORT_MAX_BRIGHTNESS	0x70
 #define GMUX_PORT_BRIGHTNESS		0x74
+#define GMUX_PORT_VALUE			0xc2
+#define GMUX_PORT_READ			0xd0
+#define GMUX_PORT_WRITE			0xd4
 
 #define GMUX_MIN_IO_LEN			(GMUX_PORT_BRIGHTNESS + 4)
 
@@ -59,22 +77,174 @@ struct apple_gmux_data {
 #define GMUX_BRIGHTNESS_MASK		0x00ffffff
 #define GMUX_MAX_BRIGHTNESS		GMUX_BRIGHTNESS_MASK
 
-static inline u8 gmux_read8(struct apple_gmux_data *gmux_data, int port)
+static u8 gmux_pio_read8(struct apple_gmux_data *gmux_data, int port)
 {
 	return inb(gmux_data->iostart + port);
 }
 
-static inline void gmux_write8(struct apple_gmux_data *gmux_data, int port,
+static void gmux_pio_write8(struct apple_gmux_data *gmux_data, int port,
 			       u8 val)
 {
 	outb(val, gmux_data->iostart + port);
 }
 
-static inline u32 gmux_read32(struct apple_gmux_data *gmux_data, int port)
+static u32 gmux_pio_read32(struct apple_gmux_data *gmux_data, int port)
 {
 	return inl(gmux_data->iostart + port);
 }
 
+static void gmux_pio_write32(struct apple_gmux_data *gmux_data, int port,
+			     u32 val)
+{
+	int i;
+	u8 tmpval;
+
+	for (i = 0; i < 4; i++) {
+		tmpval = (val >> (i * 8)) & 0xff;
+		outb(tmpval, gmux_data->iostart + port + i);
+	}
+}
+
+static int gmux_index_wait_ready(struct apple_gmux_data *gmux_data)
+{
+	int i = 200;
+	u8 gwr = inb(gmux_data->iostart + GMUX_PORT_WRITE);
+
+	while (i && (gwr & 0x01)) {
+		inb(gmux_data->iostart + GMUX_PORT_READ);
+		gwr = inb(gmux_data->iostart + GMUX_PORT_WRITE);
+		udelay(100);
+		i--;
+	}
+
+	return !!i;
+}
+
+static int gmux_index_wait_complete(struct apple_gmux_data *gmux_data)
+{
+	int i = 200;
+	u8 gwr = inb(gmux_data->iostart + GMUX_PORT_WRITE);
+
+	while (i && !(gwr & 0x01)) {
+		gwr = inb(gmux_data->iostart + GMUX_PORT_WRITE);
+		udelay(100);
+		i--;
+	}
+
+	if (gwr & 0x01)
+		inb(gmux_data->iostart + GMUX_PORT_READ);
+
+	return !!i;
+}
+
+static u8 gmux_index_read8(struct apple_gmux_data *gmux_data, int port)
+{
+	u8 val;
+
+	mutex_lock(&gmux_data->index_lock);
+	gmux_index_wait_ready(gmux_data);
+	outb((port & 0xff), gmux_data->iostart + GMUX_PORT_READ);
+	gmux_index_wait_complete(gmux_data);
+	val = inb(gmux_data->iostart + GMUX_PORT_VALUE);
+	mutex_unlock(&gmux_data->index_lock);
+
+	return val;
+}
+
+static void gmux_index_write8(struct apple_gmux_data *gmux_data, int port,
+			      u8 val)
+{
+	mutex_lock(&gmux_data->index_lock);
+	outb(val, gmux_data->iostart + GMUX_PORT_VALUE);
+	gmux_index_wait_ready(gmux_data);
+	outb(port & 0xff, gmux_data->iostart + GMUX_PORT_WRITE);
+	gmux_index_wait_complete(gmux_data);
+	mutex_unlock(&gmux_data->index_lock);
+}
+
+static u32 gmux_index_read32(struct apple_gmux_data *gmux_data, int port)
+{
+	u32 val;
+
+	mutex_lock(&gmux_data->index_lock);
+	gmux_index_wait_ready(gmux_data);
+	outb((port & 0xff), gmux_data->iostart + GMUX_PORT_READ);
+	gmux_index_wait_complete(gmux_data);
+	val = inl(gmux_data->iostart + GMUX_PORT_VALUE);
+	mutex_unlock(&gmux_data->index_lock);
+
+	return val;
+}
+
+static void gmux_index_write32(struct apple_gmux_data *gmux_data, int port,
+			       u32 val)
+{
+	int i;
+	u8 tmpval;
+
+	mutex_lock(&gmux_data->index_lock);
+
+	for (i = 0; i < 4; i++) {
+		tmpval = (val >> (i * 8)) & 0xff;
+		outb(tmpval, gmux_data->iostart + GMUX_PORT_VALUE + i);
+	}
+
+	gmux_index_wait_ready(gmux_data);
+	outb(port & 0xff, gmux_data->iostart + GMUX_PORT_WRITE);
+	gmux_index_wait_complete(gmux_data);
+	mutex_unlock(&gmux_data->index_lock);
+}
+
+static u8 gmux_read8(struct apple_gmux_data *gmux_data, int port)
+{
+	if (gmux_data->indexed)
+		return gmux_index_read8(gmux_data, port);
+	else
+		return gmux_pio_read8(gmux_data, port);
+}
+
+static void gmux_write8(struct apple_gmux_data *gmux_data, int port, u8 val)
+{
+	if (gmux_data->indexed)
+		gmux_index_write8(gmux_data, port, val);
+	else
+		gmux_pio_write8(gmux_data, port, val);
+}
+
+static u32 gmux_read32(struct apple_gmux_data *gmux_data, int port)
+{
+	if (gmux_data->indexed)
+		return gmux_index_read32(gmux_data, port);
+	else
+		return gmux_pio_read32(gmux_data, port);
+}
+
+static void gmux_write32(struct apple_gmux_data *gmux_data, int port,
+			     u32 val)
+{
+	if (gmux_data->indexed)
+		gmux_index_write32(gmux_data, port, val);
+	else
+		gmux_pio_write32(gmux_data, port, val);
+}
+
+static bool gmux_is_indexed(struct apple_gmux_data *gmux_data)
+{
+	u16 val;
+
+	outb(0xaa, gmux_data->iostart + 0xcc);
+	outb(0x55, gmux_data->iostart + 0xcd);
+	outb(0x00, gmux_data->iostart + 0xce);
+
+	val = inb(gmux_data->iostart + 0xcc) |
+		(inb(gmux_data->iostart + 0xcd) << 8);
+
+	if (val == 0x55aa)
+		return true;
+
+	return false;
+}
+
 static int gmux_get_brightness(struct backlight_device *bd)
 {
 	struct apple_gmux_data *gmux_data = bl_get_data(bd);
@@ -90,16 +260,7 @@ static int gmux_update_status(struct backlight_device *bd)
 	if (bd->props.state & BL_CORE_SUSPENDED)
 		return 0;
 
-	/*
-	 * Older gmux versions require writing out lower bytes first then
-	 * setting the upper byte to 0 to flush the values. Newer versions
-	 * accept a single u32 write, but the old method also works, so we
-	 * just use the old method for all gmux versions.
-	 */
-	gmux_write8(gmux_data, GMUX_PORT_BRIGHTNESS, brightness);
-	gmux_write8(gmux_data, GMUX_PORT_BRIGHTNESS + 1, brightness >> 8);
-	gmux_write8(gmux_data, GMUX_PORT_BRIGHTNESS + 2, brightness >> 16);
-	gmux_write8(gmux_data, GMUX_PORT_BRIGHTNESS + 3, 0);
+	gmux_write32(gmux_data, GMUX_PORT_BRIGHTNESS, brightness);
 
 	return 0;
 }
@@ -110,6 +271,146 @@ static const struct backlight_ops gmux_bl_ops = {
 	.update_status = gmux_update_status,
 };
 
+static int gmux_switchto(enum vga_switcheroo_client_id id)
+{
+	if (id == VGA_SWITCHEROO_IGD) {
+		gmux_write8(apple_gmux_data, GMUX_PORT_SWITCH_DDC, 1);
+		gmux_write8(apple_gmux_data, GMUX_PORT_SWITCH_DISPLAY, 2);
+		gmux_write8(apple_gmux_data, GMUX_PORT_SWITCH_EXTERNAL, 2);
+	} else {
+		gmux_write8(apple_gmux_data, GMUX_PORT_SWITCH_DDC, 2);
+		gmux_write8(apple_gmux_data, GMUX_PORT_SWITCH_DISPLAY, 3);
+		gmux_write8(apple_gmux_data, GMUX_PORT_SWITCH_EXTERNAL, 3);
+	}
+
+	return 0;
+}
+
+static int gmux_set_discrete_state(struct apple_gmux_data *gmux_data,
+				   enum vga_switcheroo_state state)
+{
+	INIT_COMPLETION(gmux_data->powerchange_done);
+
+	if (state == VGA_SWITCHEROO_ON) {
+		gmux_write8(gmux_data, GMUX_PORT_DISCRETE_POWER, 1);
+		gmux_write8(gmux_data, GMUX_PORT_DISCRETE_POWER, 3);
+		pr_debug("Discrete card powered up\n");
+	} else {
+		gmux_write8(gmux_data, GMUX_PORT_DISCRETE_POWER, 1);
+		gmux_write8(gmux_data, GMUX_PORT_DISCRETE_POWER, 0);
+		pr_debug("Discrete card powered down\n");
+	}
+
+	gmux_data->power_state = state;
+
+	if (gmux_data->gpe >= 0 &&
+	    !wait_for_completion_interruptible_timeout(&gmux_data->powerchange_done,
+						       msecs_to_jiffies(200)))
+		pr_warn("Timeout waiting for gmux switch to complete\n");
+
+	return 0;
+}
+
+static int gmux_set_power_state(enum vga_switcheroo_client_id id,
+				enum vga_switcheroo_state state)
+{
+	if (id == VGA_SWITCHEROO_IGD)
+		return 0;
+
+	return gmux_set_discrete_state(apple_gmux_data, state);
+}
+
+static int gmux_get_client_id(struct pci_dev *pdev)
+{
+	/*
+	 * Early Macbook Pros with switchable graphics use nvidia
+	 * integrated graphics. Hardcode that the 9400M is integrated.
+	 */
+	if (pdev->vendor == PCI_VENDOR_ID_INTEL)
+		return VGA_SWITCHEROO_IGD;
+	else if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
+		 pdev->device == 0x0863)
+		return VGA_SWITCHEROO_IGD;
+	else
+		return VGA_SWITCHEROO_DIS;
+}
+
+static enum vga_switcheroo_client_id
+gmux_active_client(struct apple_gmux_data *gmux_data)
+{
+	if (gmux_read8(gmux_data, GMUX_PORT_SWITCH_DISPLAY) == 2)
+		return VGA_SWITCHEROO_IGD;
+
+	return VGA_SWITCHEROO_DIS;
+}
+
+static struct vga_switcheroo_handler gmux_handler = {
+	.switchto = gmux_switchto,
+	.power_state = gmux_set_power_state,
+	.get_client_id = gmux_get_client_id,
+};
+
+static inline void gmux_disable_interrupts(struct apple_gmux_data *gmux_data)
+{
+	gmux_write8(gmux_data, GMUX_PORT_INTERRUPT_ENABLE,
+		    GMUX_INTERRUPT_DISABLE);
+}
+
+static inline void gmux_enable_interrupts(struct apple_gmux_data *gmux_data)
+{
+	gmux_write8(gmux_data, GMUX_PORT_INTERRUPT_ENABLE,
+		    GMUX_INTERRUPT_ENABLE);
+}
+
+static inline u8 gmux_interrupt_get_status(struct apple_gmux_data *gmux_data)
+{
+	return gmux_read8(gmux_data, GMUX_PORT_INTERRUPT_STATUS);
+}
+
+static void gmux_clear_interrupts(struct apple_gmux_data *gmux_data)
+{
+	u8 status;
+
+	/* to clear interrupts write back current status */
+	status = gmux_interrupt_get_status(gmux_data);
+	gmux_write8(gmux_data, GMUX_PORT_INTERRUPT_STATUS, status);
+}
+
+static void gmux_notify_handler(acpi_handle device, u32 value, void *context)
+{
+	u8 status;
+	struct pnp_dev *pnp = (struct pnp_dev *)context;
+	struct apple_gmux_data *gmux_data = pnp_get_drvdata(pnp);
+
+	status = gmux_interrupt_get_status(gmux_data);
+	gmux_disable_interrupts(gmux_data);
+	pr_debug("Notify handler called: status %d\n", status);
+
+	gmux_clear_interrupts(gmux_data);
+	gmux_enable_interrupts(gmux_data);
+
+	if (status & GMUX_INTERRUPT_STATUS_POWER)
+		complete(&gmux_data->powerchange_done);
+}
+
+static int gmux_suspend(struct pnp_dev *pnp, pm_message_t state)
+{
+	struct apple_gmux_data *gmux_data = pnp_get_drvdata(pnp);
+	gmux_data->resume_client_id = gmux_active_client(gmux_data);
+	gmux_disable_interrupts(gmux_data);
+	return 0;
+}
+
+static int gmux_resume(struct pnp_dev *pnp)
+{
+	struct apple_gmux_data *gmux_data = pnp_get_drvdata(pnp);
+	gmux_enable_interrupts(gmux_data);
+	gmux_switchto(gmux_data->resume_client_id);
+	if (gmux_data->power_state == VGA_SWITCHEROO_OFF)
+		gmux_set_discrete_state(gmux_data, gmux_data->power_state);
+	return 0;
+}
+
 static int __devinit gmux_probe(struct pnp_dev *pnp,
 				const struct pnp_device_id *id)
 {
@@ -119,6 +420,11 @@ static int __devinit gmux_probe(struct pnp_dev *pnp,
 	struct backlight_device *bdev;
 	u8 ver_major, ver_minor, ver_release;
 	int ret = -ENXIO;
+	acpi_status status;
+	unsigned long long gpe;
+
+	if (apple_gmux_data)
+		return -EBUSY;
 
 	gmux_data = kzalloc(sizeof(*gmux_data), GFP_KERNEL);
 	if (!gmux_data)
@@ -147,21 +453,32 @@ static int __devinit gmux_probe(struct pnp_dev *pnp,
 	}
 
 	/*
-	 * On some machines the gmux is in ACPI even thought the machine
-	 * doesn't really have a gmux. Check for invalid version information
-	 * to detect this.
+	 * Invalid version information may indicate either that the gmux
+	 * device isn't present or that it's a new one that uses indexed
+	 * io
 	 */
+
 	ver_major = gmux_read8(gmux_data, GMUX_PORT_VERSION_MAJOR);
 	ver_minor = gmux_read8(gmux_data, GMUX_PORT_VERSION_MINOR);
 	ver_release = gmux_read8(gmux_data, GMUX_PORT_VERSION_RELEASE);
 	if (ver_major == 0xff && ver_minor == 0xff && ver_release == 0xff) {
-		pr_info("gmux device not present\n");
-		ret = -ENODEV;
-		goto err_release;
+		if (gmux_is_indexed(gmux_data)) {
+			u32 version;
+			mutex_init(&gmux_data->index_lock);
+			gmux_data->indexed = true;
+			version = gmux_read32(gmux_data,
+				GMUX_PORT_VERSION_MAJOR);
+			ver_major = (version >> 24) & 0xff;
+			ver_minor = (version >> 16) & 0xff;
+			ver_release = (version >> 8) & 0xff;
+		} else {
+			pr_info("gmux device not present\n");
+			ret = -ENODEV;
+			goto err_release;
+		}
 	}
-
-	pr_info("Found gmux version %d.%d.%d\n", ver_major, ver_minor,
-		ver_release);
+	pr_info("Found gmux version %d.%d.%d [%s]\n", ver_major, ver_minor,
+		ver_release, (gmux_data->indexed ? "indexed" : "classic"));
 
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_PLATFORM;
@@ -194,13 +511,65 @@ static int __devinit gmux_probe(struct pnp_dev *pnp,
 	 * Disable the other backlight choices.
 	 */
 	acpi_video_dmi_promote_vendor();
-#ifdef CONFIG_ACPI_VIDEO
 	acpi_video_unregister();
-#endif
 	apple_bl_unregister();
 
+	gmux_data->power_state = VGA_SWITCHEROO_ON;
+
+	gmux_data->dhandle = DEVICE_ACPI_HANDLE(&pnp->dev);
+	if (!gmux_data->dhandle) {
+		pr_err("Cannot find acpi handle for pnp device %s\n",
+		       dev_name(&pnp->dev));
+		ret = -ENODEV;
+		goto err_notify;
+	}
+
+	status = acpi_evaluate_integer(gmux_data->dhandle, "GMGP", NULL, &gpe);
+	if (ACPI_SUCCESS(status)) {
+		gmux_data->gpe = (int)gpe;
+
+		status = acpi_install_notify_handler(gmux_data->dhandle,
+						     ACPI_DEVICE_NOTIFY,
+						     &gmux_notify_handler, pnp);
+		if (ACPI_FAILURE(status)) {
+			pr_err("Install notify handler failed: %s\n",
+			       acpi_format_exception(status));
+			ret = -ENODEV;
+			goto err_notify;
+		}
+
+		status = acpi_enable_gpe(NULL, gmux_data->gpe);
+		if (ACPI_FAILURE(status)) {
+			pr_err("Cannot enable gpe: %s\n",
+			       acpi_format_exception(status));
+			goto err_enable_gpe;
+		}
+	} else {
+		pr_warn("No GPE found for gmux\n");
+		gmux_data->gpe = -1;
+	}
+
+	if (vga_switcheroo_register_handler(&gmux_handler)) {
+		ret = -ENODEV;
+		goto err_register_handler;
+	}
+
+	init_completion(&gmux_data->powerchange_done);
+	apple_gmux_data = gmux_data;
+	gmux_enable_interrupts(gmux_data);
+
 	return 0;
 
+err_register_handler:
+	if (gmux_data->gpe >= 0)
+		acpi_disable_gpe(NULL, gmux_data->gpe);
+err_enable_gpe:
+	if (gmux_data->gpe >= 0)
+		acpi_remove_notify_handler(gmux_data->dhandle,
+					   ACPI_DEVICE_NOTIFY,
+					   &gmux_notify_handler);
+err_notify:
+	backlight_device_unregister(bdev);
 err_release:
 	release_region(gmux_data->iostart, gmux_data->iolen);
 err_free:
@@ -212,14 +581,23 @@ static void __devexit gmux_remove(struct pnp_dev *pnp)
 {
 	struct apple_gmux_data *gmux_data = pnp_get_drvdata(pnp);
 
+	vga_switcheroo_unregister_handler();
+	gmux_disable_interrupts(gmux_data);
+	if (gmux_data->gpe >= 0) {
+		acpi_disable_gpe(NULL, gmux_data->gpe);
+		acpi_remove_notify_handler(gmux_data->dhandle,
+					   ACPI_DEVICE_NOTIFY,
+					   &gmux_notify_handler);
+	}
+
 	backlight_device_unregister(gmux_data->bdev);
+
 	release_region(gmux_data->iostart, gmux_data->iolen);
+	apple_gmux_data = NULL;
 	kfree(gmux_data);
 
 	acpi_video_dmi_demote_vendor();
-#ifdef CONFIG_ACPI_VIDEO
 	acpi_video_register();
-#endif
 	apple_bl_register();
 }
 
@@ -233,6 +611,8 @@ static struct pnp_driver gmux_pnp_driver = {
 	.probe		= gmux_probe,
 	.remove		= __devexit_p(gmux_remove),
 	.id_table	= gmux_device_ids,
+	.suspend	= gmux_suspend,
+	.resume		= gmux_resume
 };
 
 static int __init apple_gmux_init(void)
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index e38f91be0b1..4b568df5664 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -85,7 +85,7 @@ static char *wled_type = "unknown";
 static char *bled_type = "unknown";
 
 module_param(wled_type, charp, 0444);
-MODULE_PARM_DESC(wlan_status, "Set the wled type on boot "
+MODULE_PARM_DESC(wled_type, "Set the wled type on boot "
 		 "(unknown, led or rfkill). "
 		 "default is unknown");
 
@@ -863,9 +863,9 @@ static ssize_t show_infos(struct device *dev,
 	 * The significance of others is yet to be found.
 	 * If we don't find the method, we assume the device are present.
 	 */
-	rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp);
+	rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
 	if (!ACPI_FAILURE(rv))
-		len += sprintf(page + len, "HRWS value         : %#x\n",
+		len += sprintf(page + len, "HWRS value         : %#x\n",
 			       (uint) temp);
 	/*
 	 * Another value for userspace: the ASYM method returns 0x02 for
@@ -1751,9 +1751,9 @@ static int asus_laptop_get_info(struct asus_laptop *asus)
 	 * The significance of others is yet to be found.
 	 */
 	status =
-	    acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result);
+	    acpi_evaluate_integer(asus->handle, "HWRS", NULL, &hwrs_result);
 	if (!ACPI_FAILURE(status))
-		pr_notice("  HRWS returned %x", (int)hwrs_result);
+		pr_notice("  HWRS returned %x", (int)hwrs_result);
 
 	if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL))
 		asus->have_rsts = true;
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index c7a36f6b058..c0e9ff489b2 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -47,9 +47,7 @@
 #include <linux/thermal.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
-#ifdef CONFIG_ACPI_VIDEO
 #include <acpi/video.h>
-#endif
 
 #include "asus-wmi.h"
 
@@ -101,6 +99,7 @@ MODULE_LICENSE("GPL");
 #define ASUS_WMI_DEVID_WIRELESS_LED	0x00010002
 #define ASUS_WMI_DEVID_CWAP		0x00010003
 #define ASUS_WMI_DEVID_WLAN		0x00010011
+#define ASUS_WMI_DEVID_WLAN_LED		0x00010012
 #define ASUS_WMI_DEVID_BLUETOOTH	0x00010013
 #define ASUS_WMI_DEVID_GPS		0x00010015
 #define ASUS_WMI_DEVID_WIMAX		0x00010017
@@ -731,8 +730,21 @@ static int asus_rfkill_set(void *data, bool blocked)
 {
 	struct asus_rfkill *priv = data;
 	u32 ctrl_param = !blocked;
+	u32 dev_id = priv->dev_id;
 
-	return asus_wmi_set_devstate(priv->dev_id, ctrl_param, NULL);
+	/*
+	 * If the user bit is set, BIOS can't set and record the wlan status,
+	 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
+	 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
+	 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
+	 * while setting the wlan status through WMI.
+	 * This is also the behavior that windows app will do.
+	 */
+	if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
+	     priv->asus->driver->wlan_ctrl_by_user)
+		dev_id = ASUS_WMI_DEVID_WLAN_LED;
+
+	return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
 }
 
 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
@@ -1653,6 +1665,7 @@ static int asus_wmi_add(struct platform_device *pdev)
 	struct asus_wmi *asus;
 	acpi_status status;
 	int err;
+	u32 result;
 
 	asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
 	if (!asus)
@@ -1689,10 +1702,8 @@ static int asus_wmi_add(struct platform_device *pdev)
 	if (asus->driver->quirks->wmi_backlight_power)
 		acpi_video_dmi_promote_vendor();
 	if (!acpi_video_backlight_support()) {
-#ifdef CONFIG_ACPI_VIDEO
 		pr_info("Disabling ACPI video driver\n");
 		acpi_video_unregister();
-#endif
 		err = asus_wmi_backlight_init(asus);
 		if (err && err != -ENODEV)
 			goto fail_backlight;
@@ -1711,6 +1722,10 @@ static int asus_wmi_add(struct platform_device *pdev)
 	if (err)
 		goto fail_debugfs;
 
+	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
+	if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
+		asus->driver->wlan_ctrl_by_user = 1;
+
 	return 0;
 
 fail_debugfs:
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 9c1da8b81be..4c9bd38bb0a 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -46,6 +46,7 @@ struct quirk_entry {
 struct asus_wmi_driver {
 	int			brightness;
 	int			panel_power;
+	int			wlan_ctrl_by_user;
 
 	const char		*name;
 	struct module		*owner;
diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index 2ca7dd1ab3e..c87ff16873f 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -350,6 +350,7 @@ static void cmpc_accel_idev_init_v4(struct input_dev *inputdev)
 	inputdev->close = cmpc_accel_close_v4;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int cmpc_accel_suspend_v4(struct device *dev)
 {
 	struct input_dev *inputdev;
@@ -384,6 +385,7 @@ static int cmpc_accel_resume_v4(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static int cmpc_accel_add_v4(struct acpi_device *acpi)
 {
@@ -723,8 +725,10 @@ static void cmpc_tablet_handler(struct acpi_device *dev, u32 event)
 	struct input_dev *inputdev = dev_get_drvdata(&dev->dev);
 
 	if (event == 0x81) {
-		if (ACPI_SUCCESS(cmpc_get_tablet(dev->handle, &val)))
+		if (ACPI_SUCCESS(cmpc_get_tablet(dev->handle, &val))) {
 			input_report_switch(inputdev, SW_TABLET_MODE, !val);
+			input_sync(inputdev);
+		}
 	}
 }
 
@@ -737,8 +741,10 @@ static void cmpc_tablet_idev_init(struct input_dev *inputdev)
 	set_bit(SW_TABLET_MODE, inputdev->swbit);
 
 	acpi = to_acpi_device(inputdev->dev.parent);
-	if (ACPI_SUCCESS(cmpc_get_tablet(acpi->handle, &val)))
+	if (ACPI_SUCCESS(cmpc_get_tablet(acpi->handle, &val))) {
 		input_report_switch(inputdev, SW_TABLET_MODE, !val);
+		input_sync(inputdev);
+	}
 }
 
 static int cmpc_tablet_add(struct acpi_device *acpi)
@@ -752,15 +758,19 @@ static int cmpc_tablet_remove(struct acpi_device *acpi, int type)
 	return cmpc_remove_acpi_notify_device(acpi);
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int cmpc_tablet_resume(struct device *dev)
 {
 	struct input_dev *inputdev = dev_get_drvdata(dev);
 
 	unsigned long long val = 0;
-	if (ACPI_SUCCESS(cmpc_get_tablet(to_acpi_device(dev)->handle, &val)))
+	if (ACPI_SUCCESS(cmpc_get_tablet(to_acpi_device(dev)->handle, &val))) {
 		input_report_switch(inputdev, SW_TABLET_MODE, !val);
+		input_sync(inputdev);
+	}
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(cmpc_tablet_pm, NULL, cmpc_tablet_resume);
 
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 4e96e8c0b60..927c33af67e 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -211,7 +211,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = {
 		.ident = "Dell Inspiron 5420",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Isnpiron 5420"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5420"),
 		},
 		.driver_data = &quirk_dell_vostro_v130,
 	},
@@ -220,7 +220,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = {
 		.ident = "Dell Inspiron 5520",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Isnpiron 5520"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5520"),
 		},
 		.driver_data = &quirk_dell_vostro_v130,
 	},
@@ -229,7 +229,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = {
 		.ident = "Dell Inspiron 5720",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Isnpiron 5720"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5720"),
 		},
 		.driver_data = &quirk_dell_vostro_v130,
 	},
@@ -238,7 +238,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = {
 		.ident = "Dell Inspiron 7420",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Isnpiron 7420"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7420"),
 		},
 		.driver_data = &quirk_dell_vostro_v130,
 	},
@@ -247,7 +247,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = {
 		.ident = "Dell Inspiron 7520",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Isnpiron 7520"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"),
 		},
 		.driver_data = &quirk_dell_vostro_v130,
 	},
@@ -256,7 +256,7 @@ static struct dmi_system_id __devinitdata dell_quirks[] = {
 		.ident = "Dell Inspiron 7720",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Isnpiron 7720"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7720"),
 		},
 		.driver_data = &quirk_dell_vostro_v130,
 	},
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index dab91b48d22..5ca264179f4 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -610,12 +610,12 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
 
 		if (!bus) {
 			pr_warn("Unable to find PCI bus 1?\n");
-			goto out_unlock;
+			goto out_put_dev;
 		}
 
 		if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
 			pr_err("Unable to read PCI config space?\n");
-			goto out_unlock;
+			goto out_put_dev;
 		}
 
 		absent = (l == 0xffffffff);
@@ -627,7 +627,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
 				absent ? "absent" : "present");
 			pr_warn("skipped wireless hotplug as probably "
 				"inappropriate for this model\n");
-			goto out_unlock;
+			goto out_put_dev;
 		}
 
 		if (!blocked) {
@@ -635,7 +635,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
 			if (dev) {
 				/* Device already present */
 				pci_dev_put(dev);
-				goto out_unlock;
+				goto out_put_dev;
 			}
 			dev = pci_scan_single_device(bus, 0);
 			if (dev) {
@@ -650,6 +650,8 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
 				pci_dev_put(dev);
 			}
 		}
+out_put_dev:
+		pci_dev_put(port);
 	}
 
 out_unlock:
diff --git a/drivers/platform/x86/fujitsu-tablet.c b/drivers/platform/x86/fujitsu-tablet.c
index d2e41735a47..7acae3f85f3 100644
--- a/drivers/platform/x86/fujitsu-tablet.c
+++ b/drivers/platform/x86/fujitsu-tablet.c
@@ -440,11 +440,13 @@ static int __devexit acpi_fujitsu_remove(struct acpi_device *adev, int type)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_fujitsu_resume(struct device *dev)
 {
 	fujitsu_reset();
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(acpi_fujitsu_pm, NULL, acpi_fujitsu_resume);
 
diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c
index d9ab6f64dce..777c7e3dda5 100644
--- a/drivers/platform/x86/hdaps.c
+++ b/drivers/platform/x86/hdaps.c
@@ -305,10 +305,12 @@ static int hdaps_probe(struct platform_device *dev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int hdaps_resume(struct device *dev)
 {
 	return hdaps_device_init();
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(hdaps_pm, NULL, hdaps_resume);
 
diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index f4d91154ad6..6b9af989632 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -352,7 +352,7 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
 }
 
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int lis3lv02d_suspend(struct device *dev)
 {
 	/* make sure the device is off when we suspend */
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 17f6dfd8dbf..dae7abe1d71 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -36,6 +36,7 @@
 #include <linux/fb.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
+#include <linux/i8042.h>
 
 #define IDEAPAD_RFKILL_DEV_NUM	(3)
 
@@ -63,8 +64,11 @@ enum {
 	VPCCMD_R_3G,
 	VPCCMD_W_3G,
 	VPCCMD_R_ODD, /* 0x21 */
-	VPCCMD_R_RF = 0x23,
+	VPCCMD_W_FAN,
+	VPCCMD_R_RF,
 	VPCCMD_W_RF,
+	VPCCMD_R_FAN = 0x2B,
+	VPCCMD_R_SPECIAL_BUTTONS = 0x31,
 	VPCCMD_W_BL_POWER = 0x33,
 };
 
@@ -356,14 +360,46 @@ static ssize_t store_ideapad_cam(struct device *dev,
 		return -EINVAL;
 	ret = write_ec_cmd(ideapad_handle, VPCCMD_W_CAMERA, state);
 	if (ret < 0)
-		return ret;
+		return -EIO;
 	return count;
 }
 
 static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
 
+static ssize_t show_ideapad_fan(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	unsigned long result;
+
+	if (read_ec_data(ideapad_handle, VPCCMD_R_FAN, &result))
+		return sprintf(buf, "-1\n");
+	return sprintf(buf, "%lu\n", result);
+}
+
+static ssize_t store_ideapad_fan(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	int ret, state;
+
+	if (!count)
+		return 0;
+	if (sscanf(buf, "%i", &state) != 1)
+		return -EINVAL;
+	if (state < 0 || state > 4 || state == 3)
+		return -EINVAL;
+	ret = write_ec_cmd(ideapad_handle, VPCCMD_W_FAN, state);
+	if (ret < 0)
+		return -EIO;
+	return count;
+}
+
+static DEVICE_ATTR(fan_mode, 0644, show_ideapad_fan, store_ideapad_fan);
+
 static struct attribute *ideapad_attributes[] = {
 	&dev_attr_camera_power.attr,
+	&dev_attr_fan_mode.attr,
 	NULL
 };
 
@@ -377,7 +413,10 @@ static umode_t ideapad_is_visible(struct kobject *kobj,
 
 	if (attr == &dev_attr_camera_power.attr)
 		supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
-	else
+	else if (attr == &dev_attr_fan_mode.attr) {
+		unsigned long value;
+		supported = !read_ec_data(ideapad_handle, VPCCMD_R_FAN, &value);
+	} else
 		supported = true;
 
 	return supported ? attr->mode : 0;
@@ -518,9 +557,15 @@ static void ideapad_platform_exit(struct ideapad_private *priv)
  */
 static const struct key_entry ideapad_keymap[] = {
 	{ KE_KEY, 6,  { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, 7,  { KEY_CAMERA } },
+	{ KE_KEY, 11, { KEY_F16 } },
 	{ KE_KEY, 13, { KEY_WLAN } },
 	{ KE_KEY, 16, { KEY_PROG1 } },
 	{ KE_KEY, 17, { KEY_PROG2 } },
+	{ KE_KEY, 64, { KEY_PROG3 } },
+	{ KE_KEY, 65, { KEY_PROG4 } },
+	{ KE_KEY, 66, { KEY_TOUCHPAD_OFF } },
+	{ KE_KEY, 67, { KEY_TOUCHPAD_ON } },
 	{ KE_END, 0 },
 };
 
@@ -587,6 +632,28 @@ static void ideapad_input_novokey(struct ideapad_private *priv)
 		ideapad_input_report(priv, 16);
 }
 
+static void ideapad_check_special_buttons(struct ideapad_private *priv)
+{
+	unsigned long bit, value;
+
+	read_ec_data(ideapad_handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
+
+	for (bit = 0; bit < 16; bit++) {
+		if (test_bit(bit, &value)) {
+			switch (bit) {
+			case 6:
+				/* Thermal Management button */
+				ideapad_input_report(priv, 65);
+				break;
+			case 1:
+				/* OneKey Theater button */
+				ideapad_input_report(priv, 64);
+				break;
+			}
+		}
+	}
+}
+
 /*
  * backlight
  */
@@ -691,6 +758,24 @@ static const struct acpi_device_id ideapad_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
 
+static void ideapad_sync_touchpad_state(struct acpi_device *adevice)
+{
+	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	unsigned long value;
+
+	/* Without reading from EC touchpad LED doesn't switch state */
+	if (!read_ec_data(adevice->handle, VPCCMD_R_TOUCHPAD, &value)) {
+		/* Some IdeaPads don't really turn off touchpad - they only
+		 * switch the LED state. We (de)activate KBC AUX port to turn
+		 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
+		 * KEY_TOUCHPAD_ON to not to get out of sync with LED */
+		unsigned char param;
+		i8042_command(&param, value ? I8042_CMD_AUX_ENABLE :
+			      I8042_CMD_AUX_DISABLE);
+		ideapad_input_report(priv, value ? 67 : 66);
+	}
+}
+
 static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
 {
 	int ret, i;
@@ -727,6 +812,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
 			priv->rfk[i] = NULL;
 	}
 	ideapad_sync_rfk_state(priv);
+	ideapad_sync_touchpad_state(adevice);
 
 	if (!acpi_video_backlight_support()) {
 		ret = ideapad_backlight_init(priv);
@@ -785,9 +871,14 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 				ideapad_sync_rfk_state(priv);
 				break;
 			case 13:
+			case 11:
+			case 7:
 			case 6:
 				ideapad_input_report(priv, vpc_bit);
 				break;
+			case 5:
+				ideapad_sync_touchpad_state(adevice);
+				break;
 			case 4:
 				ideapad_backlight_notify_brightness(priv);
 				break;
@@ -797,6 +888,9 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 			case 2:
 				ideapad_backlight_notify_power(priv);
 				break;
+			case 0:
+				ideapad_check_special_buttons(priv);
+				break;
 			default:
 				pr_info("Unknown event: %lu\n", vpc_bit);
 			}
@@ -804,6 +898,15 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 	}
 }
 
+static int ideapad_acpi_resume(struct device *device)
+{
+	ideapad_sync_rfk_state(ideapad_priv);
+	ideapad_sync_touchpad_state(to_acpi_device(device));
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
+
 static struct acpi_driver ideapad_acpi_driver = {
 	.name = "ideapad_acpi",
 	.class = "IdeaPad",
@@ -811,6 +914,7 @@ static struct acpi_driver ideapad_acpi_driver = {
 	.ops.add = ideapad_acpi_add,
 	.ops.remove = ideapad_acpi_remove,
 	.ops.notify = ideapad_acpi_notify,
+	.drv.pm = &ideapad_pm,
 	.owner = THIS_MODULE,
 };
 
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index f6444184431..2111dbb7e1e 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -85,7 +85,9 @@
 #define MSI_STANDARD_EC_TOUCHPAD_ADDRESS	0xe4
 #define MSI_STANDARD_EC_TOUCHPAD_MASK		(1 << 4)
 
+#ifdef CONFIG_PM_SLEEP
 static int msi_laptop_resume(struct device *device);
+#endif
 static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
 
 #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS	0x2f
@@ -753,6 +755,7 @@ err_bluetooth:
 	return retval;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int msi_laptop_resume(struct device *device)
 {
 	u8 data;
@@ -773,6 +776,7 @@ static int msi_laptop_resume(struct device *device)
 
 	return 0;
 }
+#endif
 
 static int __init msi_laptop_input_setup(void)
 {
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 24480074bcf..8e8caa767d6 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -188,7 +188,9 @@ static const struct acpi_device_id pcc_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, pcc_device_ids);
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_pcc_hotkey_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(acpi_pcc_hotkey_pm, NULL, acpi_pcc_hotkey_resume);
 
 static struct acpi_driver acpi_pcc_driver = {
@@ -540,6 +542,7 @@ static void acpi_pcc_destroy_input(struct pcc_acpi *pcc)
 
 /* kernel module interface */
 
+#ifdef CONFIG_PM_SLEEP
 static int acpi_pcc_hotkey_resume(struct device *dev)
 {
 	struct pcc_acpi *pcc;
@@ -556,6 +559,7 @@ static int acpi_pcc_hotkey_resume(struct device *dev)
 
 	return acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_mode);
 }
+#endif
 
 static int acpi_pcc_hotkey_add(struct acpi_device *device)
 {
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index c1ca7bcebb6..dd90d15f521 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -26,9 +26,7 @@
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
 #include <linux/ctype.h>
-#ifdef CONFIG_ACPI_VIDEO
 #include <acpi/video.h>
-#endif
 
 /*
  * This driver is needed because a number of Samsung laptops do not hook
@@ -1558,9 +1556,7 @@ static int __init samsung_init(void)
 		samsung->handle_backlight = false;
 	} else if (samsung->quirks->broken_acpi_video) {
 		pr_info("Disabling ACPI video driver\n");
-#ifdef CONFIG_ACPI_VIDEO
 		acpi_video_unregister();
-#endif
 	}
 #endif
 
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 9363969ad07..daaddec68de 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -140,7 +140,10 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
 		 "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
 		 "(default: 0)");
 
+#ifdef CONFIG_PM_SLEEP
 static void sony_nc_kbd_backlight_resume(void);
+static void sony_nc_thermal_resume(void);
+#endif
 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 		unsigned int handle);
 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd);
@@ -151,7 +154,6 @@ static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 
 static int sony_nc_thermal_setup(struct platform_device *pd);
 static void sony_nc_thermal_cleanup(struct platform_device *pd);
-static void sony_nc_thermal_resume(void);
 
 static int sony_nc_lid_resume_setup(struct platform_device *pd);
 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
@@ -1431,6 +1433,7 @@ static void sony_nc_function_cleanup(struct platform_device *pd)
 	sony_nc_handles_cleanup(pd);
 }
 
+#ifdef CONFIG_PM_SLEEP
 static void sony_nc_function_resume(void)
 {
 	unsigned int i, result, bitmask, arg;
@@ -1508,6 +1511,7 @@ static int sony_nc_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
 
@@ -1872,6 +1876,7 @@ static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
 	}
 }
 
+#ifdef CONFIG_PM_SLEEP
 static void sony_nc_kbd_backlight_resume(void)
 {
 	int ignore = 0;
@@ -1888,6 +1893,7 @@ static void sony_nc_kbd_backlight_resume(void)
 				(kbdbl_ctl->base + 0x200) |
 				(kbdbl_ctl->timeout << 0x10), &ignore);
 }
+#endif
 
 struct battery_care_control {
 	struct device_attribute attrs[2];
@@ -2210,6 +2216,7 @@ static void sony_nc_thermal_cleanup(struct platform_device *pd)
 	}
 }
 
+#ifdef CONFIG_PM_SLEEP
 static void sony_nc_thermal_resume(void)
 {
 	unsigned int status = sony_nc_thermal_mode_get();
@@ -2217,6 +2224,7 @@ static void sony_nc_thermal_resume(void)
 	if (status != th_handle->mode)
 		sony_nc_thermal_mode_set(th_handle->mode);
 }
+#endif
 
 /* resume on LID open */
 struct snc_lid_resume_control {
@@ -4287,6 +4295,7 @@ err_free_resources:
 	return result;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int sony_pic_suspend(struct device *dev)
 {
 	if (sony_pic_disable(to_acpi_device(dev)))
@@ -4300,6 +4309,7 @@ static int sony_pic_resume(struct device *dev)
 			spic_dev.cur_ioport, spic_dev.cur_irq);
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
 
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index e7f73287636..9da5fe715e6 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -545,7 +545,7 @@ TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY",	/* 600e/x, 770e, 770x */
  */
 
 static int acpi_evalf(acpi_handle handle,
-		      void *res, char *method, char *fmt, ...)
+		      int *res, char *method, char *fmt, ...)
 {
 	char *fmt0 = fmt;
 	struct acpi_object_list params;
@@ -606,7 +606,7 @@ static int acpi_evalf(acpi_handle handle,
 		success = (status == AE_OK &&
 			   out_obj.type == ACPI_TYPE_INTEGER);
 		if (success && res)
-			*(int *)res = out_obj.integer.value;
+			*res = out_obj.integer.value;
 		break;
 	case 'v':		/* void */
 		success = status == AE_OK;
@@ -922,6 +922,7 @@ static struct input_dev *tpacpi_inputdev;
 static struct mutex tpacpi_inputdev_send_mutex;
 static LIST_HEAD(tpacpi_all_drivers);
 
+#ifdef CONFIG_PM_SLEEP
 static int tpacpi_suspend_handler(struct device *dev)
 {
 	struct ibm_struct *ibm, *itmp;
@@ -949,6 +950,7 @@ static int tpacpi_resume_handler(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(tpacpi_pm,
 			 tpacpi_suspend_handler, tpacpi_resume_handler);
@@ -7384,17 +7386,18 @@ static int fan_get_status(u8 *status)
 	 * Add TPACPI_FAN_RD_ACPI_FANS ? */
 
 	switch (fan_status_access_mode) {
-	case TPACPI_FAN_RD_ACPI_GFAN:
+	case TPACPI_FAN_RD_ACPI_GFAN: {
 		/* 570, 600e/x, 770e, 770x */
+		int res;
 
-		if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d")))
+		if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d")))
 			return -EIO;
 
 		if (likely(status))
-			*status = s & 0x07;
+			*status = res & 0x07;
 
 		break;
-
+	}
 	case TPACPI_FAN_RD_TPEC:
 		/* all except 570, 600e/x, 770e, 770x */
 		if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
@@ -7682,25 +7685,15 @@ static int fan_set_speed(int speed)
 
 static void fan_watchdog_reset(void)
 {
-	static int fan_watchdog_active;
-
 	if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
 		return;
 
-	if (fan_watchdog_active)
-		cancel_delayed_work(&fan_watchdog_task);
-
 	if (fan_watchdog_maxinterval > 0 &&
-	    tpacpi_lifecycle != TPACPI_LIFE_EXITING) {
-		fan_watchdog_active = 1;
-		if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task,
-				msecs_to_jiffies(fan_watchdog_maxinterval
-						 * 1000))) {
-			pr_err("failed to queue the fan watchdog, "
-			       "watchdog will not trigger\n");
-		}
-	} else
-		fan_watchdog_active = 0;
+	    tpacpi_lifecycle != TPACPI_LIFE_EXITING)
+		mod_delayed_work(tpacpi_wq, &fan_watchdog_task,
+			msecs_to_jiffies(fan_watchdog_maxinterval * 1000));
+	else
+		cancel_delayed_work(&fan_watchdog_task);
 }
 
 static void fan_watchdog_fire(struct work_struct *ignored)
@@ -8662,6 +8655,13 @@ static int __must_check __init get_thinkpad_model_data(
 		tp->model_str = kstrdup(s, GFP_KERNEL);
 		if (!tp->model_str)
 			return -ENOMEM;
+	} else {
+		s = dmi_get_system_info(DMI_BIOS_VENDOR);
+		if (s && !(strnicmp(s, "Lenovo", 6))) {
+			tp->model_str = kstrdup(s, GFP_KERNEL);
+			if (!tp->model_str)
+				return -ENOMEM;
+		}
 	}
 
 	s = dmi_get_system_info(DMI_PRODUCT_NAME);
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index c13ba5bac93..5f1256d5e93 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -1296,6 +1296,7 @@ static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
 	}
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int toshiba_acpi_suspend(struct device *device)
 {
 	struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
@@ -1317,6 +1318,7 @@ static int toshiba_acpi_resume(struct device *device)
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
 			 toshiba_acpi_suspend, toshiba_acpi_resume);
diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c
index 715a43cb5e3..5e5d6317d69 100644
--- a/drivers/platform/x86/toshiba_bluetooth.c
+++ b/drivers/platform/x86/toshiba_bluetooth.c
@@ -41,7 +41,9 @@ static const struct acpi_device_id bt_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, bt_device_ids);
 
+#ifdef CONFIG_PM_SLEEP
 static int toshiba_bt_resume(struct device *dev);
+#endif
 static SIMPLE_DEV_PM_OPS(toshiba_bt_pm, NULL, toshiba_bt_resume);
 
 static struct acpi_driver toshiba_bt_rfkill_driver = {
@@ -90,10 +92,12 @@ static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event)
 	toshiba_bluetooth_enable(device->handle);
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int toshiba_bt_resume(struct device *dev)
 {
 	return toshiba_bluetooth_enable(to_acpi_device(dev)->handle);
 }
+#endif
 
 static int toshiba_bt_rfkill_add(struct acpi_device *device)
 {
diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c
index 849c07c13bf..38ba39d7ca7 100644
--- a/drivers/platform/x86/xo15-ebook.c
+++ b/drivers/platform/x86/xo15-ebook.c
@@ -77,10 +77,12 @@ static void ebook_switch_notify(struct acpi_device *device, u32 event)
 	}
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int ebook_switch_resume(struct device *dev)
 {
 	return ebook_send_state(to_acpi_device(dev));
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(ebook_switch_pm, NULL, ebook_switch_resume);
 
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index c1892f321c4..80978196aae 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -29,6 +29,13 @@ config APM_POWER
 	  Say Y here to enable support APM status emulation using
 	  battery class devices.
 
+config GENERIC_ADC_BATTERY
+	tristate "Generic battery support using IIO"
+	depends on IIO
+	help
+	  Say Y here to enable support for the generic battery driver
+	  which uses IIO framework to read adc.
+
 config MAX8925_POWER
 	tristate "MAX8925 battery charger support"
 	depends on MFD_MAX8925
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index ee58afb1e71..e0b4d4284e1 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -5,6 +5,7 @@ power_supply-$(CONFIG_SYSFS)		+= power_supply_sysfs.o
 power_supply-$(CONFIG_LEDS_TRIGGERS)	+= power_supply_leds.o
 
 obj-$(CONFIG_POWER_SUPPLY)	+= power_supply.o
+obj-$(CONFIG_GENERIC_ADC_BATTERY)	+= generic-adc-battery.o
 
 obj-$(CONFIG_PDA_POWER)		+= pda_power.o
 obj-$(CONFIG_APM_POWER)		+= apm_power.o
diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index bba3ccac72f..3041514f4d3 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -1018,7 +1018,7 @@ static int __devinit ab8500_btemp_probe(struct platform_device *pdev)
 	}
 
 	/* Init work for measuring temperature periodically */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->btemp_periodic_work,
+	INIT_DEFERRABLE_WORK(&di->btemp_periodic_work,
 		ab8500_btemp_periodic_work);
 
 	/* Identify the battery */
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index d4f0c98428c..0701dbc2b7e 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -2618,9 +2618,9 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
 	}
 
 	/* Init work for HW failure check */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->check_hw_failure_work,
+	INIT_DEFERRABLE_WORK(&di->check_hw_failure_work,
 		ab8500_charger_check_hw_failure_work);
-	INIT_DELAYED_WORK_DEFERRABLE(&di->check_usbchgnotok_work,
+	INIT_DEFERRABLE_WORK(&di->check_usbchgnotok_work,
 		ab8500_charger_check_usbchargernotok_work);
 
 	/*
@@ -2632,10 +2632,10 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
 	 * watchdog have to be kicked by the charger driver
 	 * when the AC charger is disabled
 	 */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->kick_wd_work,
+	INIT_DEFERRABLE_WORK(&di->kick_wd_work,
 		ab8500_charger_kick_watchdog_work);
 
-	INIT_DELAYED_WORK_DEFERRABLE(&di->check_vbat_work,
+	INIT_DEFERRABLE_WORK(&di->check_vbat_work,
 		ab8500_charger_check_vbat_work);
 
 	/* Init work for charger detection */
diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c
index bf022255994..5c9e7c263c3 100644
--- a/drivers/power/ab8500_fg.c
+++ b/drivers/power/ab8500_fg.c
@@ -2516,19 +2516,19 @@ static int __devinit ab8500_fg_probe(struct platform_device *pdev)
 	INIT_WORK(&di->fg_acc_cur_work, ab8500_fg_acc_cur_work);
 
 	/* Init work for reinitialising the fg algorithm */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->fg_reinit_work,
+	INIT_DEFERRABLE_WORK(&di->fg_reinit_work,
 		ab8500_fg_reinit_work);
 
 	/* Work delayed Queue to run the state machine */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->fg_periodic_work,
+	INIT_DEFERRABLE_WORK(&di->fg_periodic_work,
 		ab8500_fg_periodic_work);
 
 	/* Work to check low battery condition */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->fg_low_bat_work,
+	INIT_DEFERRABLE_WORK(&di->fg_low_bat_work,
 		ab8500_fg_low_bat_work);
 
 	/* Init work for HW failure check */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->fg_check_hw_failure_work,
+	INIT_DEFERRABLE_WORK(&di->fg_check_hw_failure_work,
 		ab8500_fg_check_hw_failure_work);
 
 	/* Initialize OVV, and other registers */
diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c
index 804b88c760d..4d302803ffc 100644
--- a/drivers/power/abx500_chargalg.c
+++ b/drivers/power/abx500_chargalg.c
@@ -1848,9 +1848,9 @@ static int __devinit abx500_chargalg_probe(struct platform_device *pdev)
 	}
 
 	/* Init work for chargalg */
-	INIT_DELAYED_WORK_DEFERRABLE(&di->chargalg_periodic_work,
+	INIT_DEFERRABLE_WORK(&di->chargalg_periodic_work,
 		abx500_chargalg_periodic_work);
-	INIT_DELAYED_WORK_DEFERRABLE(&di->chargalg_wd_work,
+	INIT_DEFERRABLE_WORK(&di->chargalg_wd_work,
 		abx500_chargalg_wd_work);
 
 	/* Init work for chargalg */
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 44efc6e202a..d4957b4edb6 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -27,6 +27,8 @@
 #include <linux/pm_runtime.h>
 #include <linux/power/smartreflex.h>
 
+#include <plat/cpu.h>
+
 #define SMARTREFLEX_NAME_LEN	16
 #define NVALUE_NAME_LEN		40
 #define SR_DISABLE_TIMEOUT	200
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 526e5c93129..7ff83cf43c8 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -509,9 +509,8 @@ static void _setup_polling(struct work_struct *work)
 	if (!delayed_work_pending(&cm_monitor_work) ||
 	    (delayed_work_pending(&cm_monitor_work) &&
 	     time_after(next_polling, _next_polling))) {
-		cancel_delayed_work_sync(&cm_monitor_work);
 		next_polling = jiffies + polling_jiffy;
-		queue_delayed_work(cm_wq, &cm_monitor_work, polling_jiffy);
+		mod_delayed_work(cm_wq, &cm_monitor_work, polling_jiffy);
 	}
 
 out:
@@ -546,10 +545,8 @@ static void fullbatt_handler(struct charger_manager *cm)
 	if (cm_suspended)
 		device_set_wakeup_capable(cm->dev, true);
 
-	if (delayed_work_pending(&cm->fullbatt_vchk_work))
-		cancel_delayed_work(&cm->fullbatt_vchk_work);
-	queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
-			   msecs_to_jiffies(desc->fullbatt_vchkdrop_ms));
+	mod_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
+			 msecs_to_jiffies(desc->fullbatt_vchkdrop_ms));
 	cm->fullbatt_vchk_jiffies_at = jiffies + msecs_to_jiffies(
 				       desc->fullbatt_vchkdrop_ms);
 
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
index 74c6b23aeab..b19bfe400f8 100644
--- a/drivers/power/collie_battery.c
+++ b/drivers/power/collie_battery.c
@@ -290,7 +290,7 @@ static struct gpio collie_batt_gpios[] = {
 static int collie_bat_suspend(struct ucb1x00_dev *dev, pm_message_t state)
 {
 	/* flush all pending status updates */
-	flush_work_sync(&bat_work);
+	flush_work(&bat_work);
 	return 0;
 }
 
diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c
index 076e211a40b..704e652072b 100644
--- a/drivers/power/ds2760_battery.c
+++ b/drivers/power/ds2760_battery.c
@@ -355,8 +355,7 @@ static void ds2760_battery_external_power_changed(struct power_supply *psy)
 
 	dev_dbg(di->dev, "%s\n", __func__);
 
-	cancel_delayed_work(&di->monitor_work);
-	queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ/10);
+	mod_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ/10);
 }
 
 
@@ -401,8 +400,7 @@ static void ds2760_battery_set_charged(struct power_supply *psy)
 
 	/* postpone the actual work by 20 secs. This is for debouncing GPIO
 	 * signals and to let the current value settle. See AN4188. */
-	cancel_delayed_work(&di->set_charged_work);
-	queue_delayed_work(di->monitor_wqueue, &di->set_charged_work, HZ * 20);
+	mod_delayed_work(di->monitor_wqueue, &di->set_charged_work, HZ * 20);
 }
 
 static int ds2760_battery_get_property(struct power_supply *psy,
@@ -616,8 +614,7 @@ static int ds2760_battery_resume(struct platform_device *pdev)
 	di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN;
 	power_supply_changed(&di->bat);
 
-	cancel_delayed_work(&di->monitor_work);
-	queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ);
+	mod_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ);
 
 	return 0;
 }
diff --git a/drivers/power/generic-adc-battery.c b/drivers/power/generic-adc-battery.c
new file mode 100644
index 00000000000..9bdf4447039
--- /dev/null
+++ b/drivers/power/generic-adc-battery.c
@@ -0,0 +1,422 @@
+/*
+ * Generic battery driver code using IIO
+ * Copyright (C) 2012, Anish Kumar <anish198519851985@gmail.com>
+ * based on jz4740-battery.c
+ * based on s3c_adc_battery.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ */
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/gpio.h>
+#include <linux/err.h>
+#include <linux/timer.h>
+#include <linux/jiffies.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/iio/consumer.h>
+#include <linux/iio/types.h>
+#include <linux/power/generic-adc-battery.h>
+
+#define JITTER_DEFAULT 10 /* hope 10ms is enough */
+
+enum gab_chan_type {
+	GAB_VOLTAGE = 0,
+	GAB_CURRENT,
+	GAB_POWER,
+	GAB_MAX_CHAN_TYPE
+};
+
+/*
+ * gab_chan_name suggests the standard channel names for commonly used
+ * channel types.
+ */
+static const char *const gab_chan_name[] = {
+	[GAB_VOLTAGE]	= "voltage",
+	[GAB_CURRENT]	= "current",
+	[GAB_POWER]		= "power",
+};
+
+struct gab {
+	struct power_supply	psy;
+	struct iio_channel	*channel[GAB_MAX_CHAN_TYPE];
+	struct gab_platform_data	*pdata;
+	struct delayed_work bat_work;
+	int	level;
+	int	status;
+	bool cable_plugged;
+};
+
+static struct gab *to_generic_bat(struct power_supply *psy)
+{
+	return container_of(psy, struct gab, psy);
+}
+
+static void gab_ext_power_changed(struct power_supply *psy)
+{
+	struct gab *adc_bat = to_generic_bat(psy);
+
+	schedule_delayed_work(&adc_bat->bat_work, msecs_to_jiffies(0));
+}
+
+static const enum power_supply_property gab_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+	POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_MODEL_NAME,
+};
+
+/*
+ * This properties are set based on the received platform data and this
+ * should correspond one-to-one with enum chan_type.
+ */
+static const enum power_supply_property gab_dyn_props[] = {
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_POWER_NOW,
+};
+
+static bool gab_charge_finished(struct gab *adc_bat)
+{
+	struct gab_platform_data *pdata = adc_bat->pdata;
+	bool ret = gpio_get_value(pdata->gpio_charge_finished);
+	bool inv = pdata->gpio_inverted;
+
+	if (!gpio_is_valid(pdata->gpio_charge_finished))
+		return false;
+	return ret ^ inv;
+}
+
+static int gab_get_status(struct gab *adc_bat)
+{
+	struct gab_platform_data *pdata = adc_bat->pdata;
+	struct power_supply_info *bat_info;
+
+	bat_info = &pdata->battery_info;
+	if (adc_bat->level == bat_info->charge_full_design)
+		return POWER_SUPPLY_STATUS_FULL;
+	return adc_bat->status;
+}
+
+static enum gab_chan_type gab_prop_to_chan(enum power_supply_property psp)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_POWER_NOW:
+		return GAB_POWER;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		return GAB_VOLTAGE;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		return GAB_CURRENT;
+	default:
+		WARN_ON(1);
+		break;
+	}
+	return GAB_POWER;
+}
+
+static int read_channel(struct gab *adc_bat, enum power_supply_property psp,
+		int *result)
+{
+	int ret;
+	int chan_index;
+
+	chan_index = gab_prop_to_chan(psp);
+	ret = iio_read_channel_processed(adc_bat->channel[chan_index],
+			result);
+	if (ret < 0)
+		pr_err("read channel error\n");
+	return ret;
+}
+
+static int gab_get_property(struct power_supply *psy,
+		enum power_supply_property psp, union power_supply_propval *val)
+{
+	struct gab *adc_bat;
+	struct gab_platform_data *pdata;
+	struct power_supply_info *bat_info;
+	int result = 0;
+	int ret = 0;
+
+	adc_bat = to_generic_bat(psy);
+	if (!adc_bat) {
+		dev_err(psy->dev, "no battery infos ?!\n");
+		return -EINVAL;
+	}
+	pdata = adc_bat->pdata;
+	bat_info = &pdata->battery_info;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		gab_get_status(adc_bat);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
+		val->intval = 0;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+		val->intval = pdata->cal_charge(result);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+	case POWER_SUPPLY_PROP_POWER_NOW:
+		ret = read_channel(adc_bat, psp, &result);
+		if (ret < 0)
+			goto err;
+		val->intval = result;
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = bat_info->technology;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+		val->intval = bat_info->voltage_min_design;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+		val->intval = bat_info->voltage_max_design;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+		val->intval = bat_info->charge_full_design;
+		break;
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		val->strval = bat_info->name;
+		break;
+	default:
+		return -EINVAL;
+	}
+err:
+	return ret;
+}
+
+static void gab_work(struct work_struct *work)
+{
+	struct gab *adc_bat;
+	struct gab_platform_data *pdata;
+	struct delayed_work *delayed_work;
+	bool is_plugged;
+	int status;
+
+	delayed_work = container_of(work, struct delayed_work, work);
+	adc_bat = container_of(delayed_work, struct gab, bat_work);
+	pdata = adc_bat->pdata;
+	status = adc_bat->status;
+
+	is_plugged = power_supply_am_i_supplied(&adc_bat->psy);
+	adc_bat->cable_plugged = is_plugged;
+
+	if (!is_plugged)
+		adc_bat->status =  POWER_SUPPLY_STATUS_DISCHARGING;
+	else if (gab_charge_finished(adc_bat))
+		adc_bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+	else
+		adc_bat->status = POWER_SUPPLY_STATUS_CHARGING;
+
+	if (status != adc_bat->status)
+		power_supply_changed(&adc_bat->psy);
+}
+
+static irqreturn_t gab_charged(int irq, void *dev_id)
+{
+	struct gab *adc_bat = dev_id;
+	struct gab_platform_data *pdata = adc_bat->pdata;
+	int delay;
+
+	delay = pdata->jitter_delay ? pdata->jitter_delay : JITTER_DEFAULT;
+	schedule_delayed_work(&adc_bat->bat_work,
+			msecs_to_jiffies(delay));
+	return IRQ_HANDLED;
+}
+
+static int __devinit gab_probe(struct platform_device *pdev)
+{
+	struct gab *adc_bat;
+	struct power_supply *psy;
+	struct gab_platform_data *pdata = pdev->dev.platform_data;
+	enum power_supply_property *properties;
+	int ret = 0;
+	int chan;
+	int index = 0;
+
+	adc_bat = devm_kzalloc(&pdev->dev, sizeof(*adc_bat), GFP_KERNEL);
+	if (!adc_bat) {
+		dev_err(&pdev->dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	psy = &adc_bat->psy;
+	psy->name = pdata->battery_info.name;
+
+	/* bootup default values for the battery */
+	adc_bat->cable_plugged = false;
+	adc_bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
+	psy->type = POWER_SUPPLY_TYPE_BATTERY;
+	psy->get_property = gab_get_property;
+	psy->external_power_changed = gab_ext_power_changed;
+	adc_bat->pdata = pdata;
+
+	/* calculate the total number of channels */
+	chan = ARRAY_SIZE(gab_chan_name);
+
+	/*
+	 * copying the static properties and allocating extra memory for holding
+	 * the extra configurable properties received from platform data.
+	 */
+	psy->properties = kcalloc(ARRAY_SIZE(gab_props) +
+					ARRAY_SIZE(gab_chan_name),
+					sizeof(*psy->properties), GFP_KERNEL);
+	if (!psy->properties) {
+		ret = -ENOMEM;
+		goto first_mem_fail;
+	}
+
+	memcpy(psy->properties, gab_props, sizeof(gab_props));
+	properties = psy->properties + sizeof(gab_props);
+
+	/*
+	 * getting channel from iio and copying the battery properties
+	 * based on the channel supported by consumer device.
+	 */
+	for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) {
+		adc_bat->channel[chan] = iio_channel_get(dev_name(&pdev->dev),
+						gab_chan_name[chan]);
+		if (IS_ERR(adc_bat->channel[chan])) {
+			ret = PTR_ERR(adc_bat->channel[chan]);
+		} else {
+			/* copying properties for supported channels only */
+			memcpy(properties + sizeof(*(psy->properties)) * index,
+					&gab_dyn_props[chan],
+					sizeof(gab_dyn_props[chan]));
+			index++;
+		}
+	}
+
+	/* none of the channels are supported so let's bail out */
+	if (index == ARRAY_SIZE(gab_chan_name))
+		goto second_mem_fail;
+
+	/*
+	 * Total number of properties is equal to static properties
+	 * plus the dynamic properties.Some properties may not be set
+	 * as come channels may be not be supported by the device.So
+	 * we need to take care of that.
+	 */
+	psy->num_properties = ARRAY_SIZE(gab_props) + index;
+
+	ret = power_supply_register(&pdev->dev, psy);
+	if (ret)
+		goto err_reg_fail;
+
+	INIT_DELAYED_WORK(&adc_bat->bat_work, gab_work);
+
+	if (gpio_is_valid(pdata->gpio_charge_finished)) {
+		int irq;
+		ret = gpio_request(pdata->gpio_charge_finished, "charged");
+		if (ret)
+			goto gpio_req_fail;
+
+		irq = gpio_to_irq(pdata->gpio_charge_finished);
+		ret = request_any_context_irq(irq, gab_charged,
+				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+				"battery charged", adc_bat);
+		if (ret)
+			goto err_gpio;
+	}
+
+	platform_set_drvdata(pdev, adc_bat);
+
+	/* Schedule timer to check current status */
+	schedule_delayed_work(&adc_bat->bat_work,
+			msecs_to_jiffies(0));
+	return 0;
+
+err_gpio:
+	gpio_free(pdata->gpio_charge_finished);
+gpio_req_fail:
+	power_supply_unregister(psy);
+err_reg_fail:
+	for (chan = 0; ARRAY_SIZE(gab_chan_name); chan++)
+		iio_channel_release(adc_bat->channel[chan]);
+second_mem_fail:
+	kfree(psy->properties);
+first_mem_fail:
+	return ret;
+}
+
+static int __devexit gab_remove(struct platform_device *pdev)
+{
+	int chan;
+	struct gab *adc_bat = platform_get_drvdata(pdev);
+	struct gab_platform_data *pdata = adc_bat->pdata;
+
+	power_supply_unregister(&adc_bat->psy);
+
+	if (gpio_is_valid(pdata->gpio_charge_finished)) {
+		free_irq(gpio_to_irq(pdata->gpio_charge_finished), adc_bat);
+		gpio_free(pdata->gpio_charge_finished);
+	}
+
+	for (chan = 0; ARRAY_SIZE(gab_chan_name); chan++)
+		iio_channel_release(adc_bat->channel[chan]);
+
+	kfree(adc_bat->psy.properties);
+	cancel_delayed_work(&adc_bat->bat_work);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int gab_suspend(struct device *dev)
+{
+	struct gab *adc_bat = dev_get_drvdata(dev);
+
+	cancel_delayed_work_sync(&adc_bat->bat_work);
+	adc_bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
+	return 0;
+}
+
+static int gab_resume(struct device *dev)
+{
+	struct gab *adc_bat = dev_get_drvdata(dev);
+	struct gab_platform_data *pdata = adc_bat->pdata;
+	int delay;
+
+	delay = pdata->jitter_delay ? pdata->jitter_delay : JITTER_DEFAULT;
+
+	/* Schedule timer to check current status */
+	schedule_delayed_work(&adc_bat->bat_work,
+			msecs_to_jiffies(delay));
+	return 0;
+}
+
+static const struct dev_pm_ops gab_pm_ops = {
+	.suspend        = gab_suspend,
+	.resume         = gab_resume,
+};
+
+#define GAB_PM_OPS       (&gab_pm_ops)
+#else
+#define GAB_PM_OPS       (NULL)
+#endif
+
+static struct platform_driver gab_driver = {
+	.driver		= {
+		.name	= "generic-adc-battery",
+		.owner	= THIS_MODULE,
+		.pm	= GAB_PM_OPS
+	},
+	.probe		= gab_probe,
+	.remove		= __devexit_p(gab_remove),
+};
+module_platform_driver(gab_driver);
+
+MODULE_AUTHOR("anish kumar <anish198519851985@gmail.com>");
+MODULE_DESCRIPTION("generic battery driver using IIO");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index 8dbc7bfaab1..ffbed5e5b94 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -173,16 +173,14 @@ static void jz_battery_external_power_changed(struct power_supply *psy)
 {
 	struct jz_battery *jz_battery = psy_to_jz_battery(psy);
 
-	cancel_delayed_work(&jz_battery->work);
-	schedule_delayed_work(&jz_battery->work, 0);
+	mod_delayed_work(system_wq, &jz_battery->work, 0);
 }
 
 static irqreturn_t jz_battery_charge_irq(int irq, void *data)
 {
 	struct jz_battery *jz_battery = data;
 
-	cancel_delayed_work(&jz_battery->work);
-	schedule_delayed_work(&jz_battery->work, 0);
+	mod_delayed_work(system_wq, &jz_battery->work, 0);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c
index c284143cfcd..58e67830143 100644
--- a/drivers/power/max17040_battery.c
+++ b/drivers/power/max17040_battery.c
@@ -232,7 +232,7 @@ static int __devinit max17040_probe(struct i2c_client *client,
 	max17040_reset(client);
 	max17040_get_version(client);
 
-	INIT_DELAYED_WORK_DEFERRABLE(&chip->work, max17040_work);
+	INIT_DEFERRABLE_WORK(&chip->work, max17040_work);
 	schedule_delayed_work(&chip->work, MAX17040_DELAY);
 
 	return 0;
diff --git a/drivers/power/tosa_battery.c b/drivers/power/tosa_battery.c
index 28bbe7e094e..51199b5ce22 100644
--- a/drivers/power/tosa_battery.c
+++ b/drivers/power/tosa_battery.c
@@ -327,7 +327,7 @@ static struct gpio tosa_bat_gpios[] = {
 static int tosa_bat_suspend(struct platform_device *dev, pm_message_t state)
 {
 	/* flush all pending status updates */
-	flush_work_sync(&bat_work);
+	flush_work(&bat_work);
 	return 0;
 }
 
diff --git a/drivers/power/wm97xx_battery.c b/drivers/power/wm97xx_battery.c
index d2d4c08c681..1245fe1f48c 100644
--- a/drivers/power/wm97xx_battery.c
+++ b/drivers/power/wm97xx_battery.c
@@ -146,7 +146,7 @@ static irqreturn_t wm97xx_chrg_irq(int irq, void *data)
 #ifdef CONFIG_PM
 static int wm97xx_bat_suspend(struct device *dev)
 {
-	flush_work_sync(&bat_work);
+	flush_work(&bat_work);
 	return 0;
 }
 
diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c
index 8c9a607ea77..5757d0d6782 100644
--- a/drivers/power/z2_battery.c
+++ b/drivers/power/z2_battery.c
@@ -276,7 +276,7 @@ static int z2_batt_suspend(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct z2_charger *charger = i2c_get_clientdata(client);
 
-	flush_work_sync(&charger->bat_work);
+	flush_work(&charger->bat_work);
 	return 0;
 }
 
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index 1e528b539a0..79f4bce061b 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -143,10 +143,12 @@ static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx)
 		kt = timespec_to_ktime(ts);
 		delta = ktime_to_ns(kt);
 		err = ops->adjtime(ops, delta);
-
 	} else if (tx->modes & ADJ_FREQUENCY) {
-
 		err = ops->adjfreq(ops, scaled_ppm_to_ppb(tx->freq));
+		ptp->dialed_frequency = tx->freq;
+	} else if (tx->modes == 0) {
+		tx->freq = ptp->dialed_frequency;
+		err = 0;
 	}
 
 	return err;
@@ -180,7 +182,8 @@ static void delete_ptp_clock(struct posix_clock *pc)
 
 /* public interface */
 
-struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info)
+struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
+				     struct device *parent)
 {
 	struct ptp_clock *ptp;
 	int err = 0, index, major = MAJOR(ptp_devt);
@@ -213,7 +216,7 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info)
 	init_waitqueue_head(&ptp->tsev_wq);
 
 	/* Create a new device in our class. */
-	ptp->dev = device_create(ptp_class, NULL, ptp->devid, ptp,
+	ptp->dev = device_create(ptp_class, parent, ptp->devid, ptp,
 				 "ptp%d", ptp->index);
 	if (IS_ERR(ptp->dev))
 		goto no_device;
@@ -300,6 +303,11 @@ void ptp_clock_event(struct ptp_clock *ptp, struct ptp_clock_event *event)
 		pps_get_ts(&evt);
 		pps_event(ptp->pps_source, &evt, PTP_PPS_EVENT, NULL);
 		break;
+
+	case PTP_CLOCK_PPSUSR:
+		pps_event(ptp->pps_source, &event->pps_times,
+			  PTP_PPS_EVENT, NULL);
+		break;
 	}
 }
 EXPORT_SYMBOL(ptp_clock_event);
diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c
index e03c40692b0..d49b85164fd 100644
--- a/drivers/ptp/ptp_ixp46x.c
+++ b/drivers/ptp/ptp_ixp46x.c
@@ -298,7 +298,7 @@ static int __init ptp_ixp_init(void)
 
 	ixp_clock.caps = ptp_ixp_caps;
 
-	ixp_clock.ptp_clock = ptp_clock_register(&ixp_clock.caps);
+	ixp_clock.ptp_clock = ptp_clock_register(&ixp_clock.caps, NULL);
 
 	if (IS_ERR(ixp_clock.ptp_clock))
 		return PTR_ERR(ixp_clock.ptp_clock);
diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c
index 3a9c17eced1..e624e4dd2ab 100644
--- a/drivers/ptp/ptp_pch.c
+++ b/drivers/ptp/ptp_pch.c
@@ -627,7 +627,7 @@ pch_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	chip->caps = ptp_pch_caps;
-	chip->ptp_clock = ptp_clock_register(&chip->caps);
+	chip->ptp_clock = ptp_clock_register(&chip->caps, &pdev->dev);
 
 	if (IS_ERR(chip->ptp_clock))
 		return PTR_ERR(chip->ptp_clock);
diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index 4d5b5082c3b..69d32070cc6 100644
--- a/drivers/ptp/ptp_private.h
+++ b/drivers/ptp/ptp_private.h
@@ -45,6 +45,7 @@ struct ptp_clock {
 	dev_t devid;
 	int index; /* index into clocks.map */
 	struct pps_device *pps_source;
+	long dialed_frequency; /* remembers the frequency adjustment */
 	struct timestamp_event_queue tsevq; /* simple fifo for time stamps */
 	struct mutex tsevq_mux; /* one process at a time reading the fifo */
 	wait_queue_head_t tsev_wq;
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 8fc3808d7a3..90c5c7357a5 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -1,12 +1,31 @@
 menuconfig PWM
-	bool "PWM Support"
+	bool "Pulse-Width Modulation (PWM) Support"
 	depends on !MACH_JZ4740 && !PUV3_PWM
 	help
-	  This enables PWM support through the generic PWM framework.
-	  You only need to enable this, if you also want to enable
-	  one or more of the PWM drivers below.
-
-	  If unsure, say N.
+	  Generic Pulse-Width Modulation (PWM) support.
+
+	  In Pulse-Width Modulation, a variation of the width of pulses
+	  in a rectangular pulse signal is used as a means to alter the
+	  average power of the signal. Applications include efficient
+	  power delivery and voltage regulation. In computer systems,
+	  PWMs are commonly used to control fans or the brightness of
+	  display backlights.
+
+	  This framework provides a generic interface to PWM devices
+	  within the Linux kernel. On the driver side it provides an API
+	  to register and unregister a PWM chip, an abstraction of a PWM
+	  controller, that supports one or more PWM devices. Client
+	  drivers can request PWM devices and use the generic framework
+	  to configure as well as enable and disable them.
+
+	  This generic framework replaces the legacy PWM framework which
+	  allows only a single driver implementing the required API. Not
+	  all legacy implementations have been ported to the framework
+	  yet. The framework provides an API that is backward compatible
+	  with the legacy framework so that existing client drivers
+	  continue to work as expected.
+
+	  If unsure, say no.
 
 if PWM
 
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index ecb76909e94..c6e05078d3a 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -129,8 +129,8 @@ static int pwm_device_request(struct pwm_device *pwm, const char *label)
 	return 0;
 }
 
-static struct pwm_device *of_pwm_simple_xlate(struct pwm_chip *pc,
-					      const struct of_phandle_args *args)
+static struct pwm_device *
+of_pwm_simple_xlate(struct pwm_chip *pc, const struct of_phandle_args *args)
 {
 	struct pwm_device *pwm;
 
@@ -149,7 +149,7 @@ static struct pwm_device *of_pwm_simple_xlate(struct pwm_chip *pc,
 	return pwm;
 }
 
-void of_pwmchip_add(struct pwm_chip *chip)
+static void of_pwmchip_add(struct pwm_chip *chip)
 {
 	if (!chip->dev || !chip->dev->of_node)
 		return;
@@ -162,7 +162,7 @@ void of_pwmchip_add(struct pwm_chip *chip)
 	of_node_get(chip->dev->of_node);
 }
 
-void of_pwmchip_remove(struct pwm_chip *chip)
+static void of_pwmchip_remove(struct pwm_chip *chip)
 {
 	if (chip->dev && chip->dev->of_node)
 		of_node_put(chip->dev->of_node);
@@ -527,7 +527,7 @@ void __init pwm_add_table(struct pwm_lookup *table, size_t num)
 struct pwm_device *pwm_get(struct device *dev, const char *con_id)
 {
 	struct pwm_device *pwm = ERR_PTR(-EPROBE_DEFER);
-	const char *dev_id = dev ? dev_name(dev): NULL;
+	const char *dev_id = dev ? dev_name(dev) : NULL;
 	struct pwm_chip *chip = NULL;
 	unsigned int index = 0;
 	unsigned int best = 0;
@@ -609,7 +609,7 @@ void pwm_put(struct pwm_device *pwm)
 	mutex_lock(&pwm_lock);
 
 	if (!test_and_clear_bit(PWMF_REQUESTED, &pwm->flags)) {
-		pr_warning("PWM device already freed\n");
+		pr_warn("PWM device already freed\n");
 		goto out;
 	}
 
diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index d10386528c9..e5187c0ade9 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -225,6 +225,7 @@ static int s3c_pwm_probe(struct platform_device *pdev)
 
 	/* calculate base of control bits in TCON */
 	s3c->tcon_base = id == 0 ? 0 : (id * 4) + 4;
+	s3c->chip.dev = &pdev->dev;
 	s3c->chip.ops = &s3c_pwm_ops;
 	s3c->chip.base = -1;
 	s3c->chip.npwm = 1;
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 02ce18d5e49..057465e0553 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -187,10 +187,8 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 	}
 
 	pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pwm->mmio_base) {
-		dev_err(&pdev->dev, "failed to ioremap() region\n");
+	if (!pwm->mmio_base)
 		return -EADDRNOTAVAIL;
-	}
 
 	platform_set_drvdata(pdev, pwm);
 
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 3c2ad284ee3..4b6688909fe 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -100,6 +100,13 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		writel(period_cycles, pc->mmio_base + CAP3);
 	}
 
+	if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+		reg_val = readw(pc->mmio_base + ECCTL2);
+		/* Disable APWM mode to put APWM output Low */
+		reg_val &= ~ECCTL2_APWM_MODE;
+		writew(reg_val, pc->mmio_base + ECCTL2);
+	}
+
 	pm_runtime_put_sync(pc->chip.dev);
 	return 0;
 }
@@ -192,10 +199,8 @@ static int __devinit ecap_pwm_probe(struct platform_device *pdev)
 	}
 
 	pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pc->mmio_base) {
-		dev_err(&pdev->dev, "failed to ioremap() registers\n");
+	if (!pc->mmio_base)
 		return -EADDRNOTAVAIL;
-	}
 
 	ret = pwmchip_add(&pc->chip);
 	if (ret < 0) {
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 010d232cb0c..b1996bcd5b7 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -104,6 +104,7 @@ struct ehrpwm_pwm_chip {
 	struct pwm_chip	chip;
 	unsigned int	clk_rate;
 	void __iomem	*mmio_base;
+	unsigned long period_cycles[NUM_PWM_CHANNEL];
 };
 
 static inline struct ehrpwm_pwm_chip *to_ehrpwm_pwm_chip(struct pwm_chip *chip)
@@ -210,6 +211,7 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	unsigned long long c;
 	unsigned long period_cycles, duty_cycles;
 	unsigned short ps_divval, tb_divval;
+	int i;
 
 	if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC)
 		return -ERANGE;
@@ -229,6 +231,28 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		duty_cycles = (unsigned long)c;
 	}
 
+	/*
+	 * Period values should be same for multiple PWM channels as IP uses
+	 * same period register for multiple channels.
+	 */
+	for (i = 0; i < NUM_PWM_CHANNEL; i++) {
+		if (pc->period_cycles[i] &&
+				(pc->period_cycles[i] != period_cycles)) {
+			/*
+			 * Allow channel to reconfigure period if no other
+			 * channels being configured.
+			 */
+			if (i == pwm->hwpwm)
+				continue;
+
+			dev_err(chip->dev, "Period value conflicts with channel %d\n",
+					i);
+			return -EINVAL;
+		}
+	}
+
+	pc->period_cycles[pwm->hwpwm] = period_cycles;
+
 	/* Configure clock prescaler to support Low frequency PWM wave */
 	if (set_prescale_div(period_cycles/PERIOD_MAX, &ps_divval,
 				&tb_divval)) {
@@ -320,10 +344,15 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 
 static void ehrpwm_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
+	struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip);
+
 	if (test_bit(PWMF_ENABLED, &pwm->flags)) {
 		dev_warn(chip->dev, "Removing PWM device without disabling\n");
 		pm_runtime_put_sync(chip->dev);
 	}
+
+	/* set period value to zero on free */
+	pc->period_cycles[pwm->hwpwm] = 0;
 }
 
 static const struct pwm_ops ehrpwm_pwm_ops = {
@@ -371,10 +400,8 @@ static int __devinit ehrpwm_pwm_probe(struct platform_device *pdev)
 	}
 
 	pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pc->mmio_base) {
-		dev_err(&pdev->dev, "failed to ioremap() registers\n");
+	if (!pc->mmio_base)
 		return  -EADDRNOTAVAIL;
-	}
 
 	ret = pwmchip_add(&pc->chip);
 	if (ret < 0) {
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index 548021439f0..ad14389b714 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -41,7 +41,7 @@ static inline void pwm_busy_wait(void __iomem *reg, u8 bitmask)
 		cpu_relax();
 
 	if (unlikely(!loops))
-		pr_warning("Waiting for status bits 0x%x to clear timed out\n",
+		pr_warn("Waiting for status bits 0x%x to clear timed out\n",
 			   bitmask);
 }
 
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 722246cf20a..d5e1625bbac 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -435,6 +435,9 @@ static void tsi721_db_dpc(struct work_struct *work)
 				" info %4.4x\n", DBELL_SID(idb.bytes),
 				DBELL_TID(idb.bytes), DBELL_INF(idb.bytes));
 		}
+
+		wr_ptr = ioread32(priv->regs +
+				  TSI721_IDQ_WP(IDB_QUEUE)) % IDB_QSIZE;
 	}
 
 	iowrite32(rd_ptr & (IDB_QSIZE - 1),
@@ -445,6 +448,10 @@ static void tsi721_db_dpc(struct work_struct *work)
 	regval |= TSI721_SR_CHINT_IDBQRCV;
 	iowrite32(regval,
 		priv->regs + TSI721_SR_CHINTE(IDB_QUEUE));
+
+	wr_ptr = ioread32(priv->regs + TSI721_IDQ_WP(IDB_QUEUE)) % IDB_QSIZE;
+	if (wr_ptr != rd_ptr)
+		schedule_work(&priv->idb_work);
 }
 
 /**
@@ -2212,9 +2219,7 @@ static int __devinit tsi721_probe(struct pci_dev *pdev,
 				  const struct pci_device_id *id)
 {
 	struct tsi721_device *priv;
-	int i, cap;
 	int err;
-	u32 regval;
 
 	priv = kzalloc(sizeof(struct tsi721_device), GFP_KERNEL);
 	if (priv == NULL) {
@@ -2232,12 +2237,15 @@ static int __devinit tsi721_probe(struct pci_dev *pdev,
 	priv->pdev = pdev;
 
 #ifdef DEBUG
+	{
+	int i;
 	for (i = 0; i <= PCI_STD_RESOURCE_END; i++) {
 		dev_dbg(&pdev->dev, "res[%d] @ 0x%llx (0x%lx, 0x%lx)\n",
 			i, (unsigned long long)pci_resource_start(pdev, i),
 			(unsigned long)pci_resource_len(pdev, i),
 			pci_resource_flags(pdev, i));
 	}
+	}
 #endif
 	/*
 	 * Verify BAR configuration
@@ -2320,20 +2328,16 @@ static int __devinit tsi721_probe(struct pci_dev *pdev,
 			dev_info(&pdev->dev, "Unable to set consistent DMA mask\n");
 	}
 
-	cap = pci_pcie_cap(pdev);
-	BUG_ON(cap == 0);
+	BUG_ON(!pci_is_pcie(pdev));
 
 	/* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */
-	pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL, &regval);
-	regval &= ~(PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
-		    PCI_EXP_DEVCTL_NOSNOOP_EN);
-	regval |= 0x2 << MAX_READ_REQUEST_SZ_SHIFT;
-	pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL, regval);
+	pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
+		PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
+		PCI_EXP_DEVCTL_NOSNOOP_EN,
+		0x2 << MAX_READ_REQUEST_SZ_SHIFT);
 
 	/* Adjust PCIe completion timeout. */
-	pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL2, &regval);
-	regval &= ~(0x0f);
-	pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL2, regval | 0x2);
+	pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL2, 0xf, 0x2);
 
 	/*
 	 * FIXUP: correct offsets of MSI-X tables in the MSI-X Capability Block
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 4e932cc695e..e98a5e7827d 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -33,9 +33,8 @@ config REGULATOR_DUMMY
 	help
 	  If this option is enabled then when a regulator lookup fails
 	  and the board has not specified that it has provided full
-	  constraints then the regulator core will provide an always
-	  enabled dummy regulator will be provided, allowing consumer
-	  drivers to continue.
+	  constraints the regulator core will provide an always
+	  enabled dummy regulator, allowing consumer drivers to continue.
 
 	  A warning will be generated when this substitution is done.
 
@@ -50,11 +49,11 @@ config REGULATOR_VIRTUAL_CONSUMER
 	tristate "Virtual regulator consumer support"
 	help
 	  This driver provides a virtual consumer for the voltage and
-          current regulator API which provides sysfs controls for
-          configuring the supplies requested.  This is mainly useful
-          for test purposes.
+	  current regulator API which provides sysfs controls for
+	  configuring the supplies requested.  This is mainly useful
+	  for test purposes.
 
-          If unsure, say no.
+	  If unsure, say no.
 
 config REGULATOR_USERSPACE_CONSUMER
 	tristate "Userspace regulator consumer support"
@@ -63,7 +62,7 @@ config REGULATOR_USERSPACE_CONSUMER
 	  from user space. Userspace consumer driver provides ability to
 	  control power supplies for such devices.
 
-          If unsure, say no.
+	  If unsure, say no.
 
 config REGULATOR_GPIO
 	tristate "GPIO regulator support"
@@ -110,6 +109,17 @@ config REGULATOR_DA9052
 	  This driver supports the voltage regulators of DA9052-BC and
 	  DA9053-AA/Bx PMIC.
 
+config REGULATOR_FAN53555
+	tristate "Fairchild FAN53555 Regulator"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  This driver supports Fairchild FAN53555 Digitally Programmable
+	  TinyBuck Regulator. The FAN53555 is a step-down switching voltage
+	  regulator that delivers a digitally programmable output from an
+	  input voltage supply of 2.5V to 5.5V. The output voltage is
+	  programmed through an I2C interface.
+
 config REGULATOR_ANATOP
 	tristate "Freescale i.MX on-chip ANATOP LDO regulators"
 	depends on MFD_ANATOP
@@ -172,6 +182,14 @@ config REGULATOR_MAX8660
 	  This driver controls a Maxim 8660/8661 voltage output
 	  regulator via I2C bus.
 
+config REGULATOR_MAX8907
+	tristate "Maxim 8907 voltage regulator"
+	depends on MFD_MAX8907
+	help
+	  This driver controls a Maxim 8907 voltage output regulator
+	  via I2C bus. The provided regulator is suitable for Tegra
+	  chip to control Step-Down DC-DC and LDOs.
+
 config REGULATOR_MAX8925
 	tristate "Maxim MAX8925 Power Management IC"
 	depends on MFD_MAX8925
@@ -247,7 +265,7 @@ config REGULATOR_LP8788
 
 config REGULATOR_PCF50633
 	tristate "NXP PCF50633 regulator driver"
-        depends on MFD_PCF50633
+	depends on MFD_PCF50633
 	help
 	 Say Y here to support the voltage regulators and convertors
 	 on PCF50633
@@ -416,7 +434,7 @@ config REGULATOR_WM8350
 	depends on MFD_WM8350
 	help
 	  This driver provides support for the voltage and current regulators
-          of the WM8350 AudioPlus PMIC.
+	  of the WM8350 AudioPlus PMIC.
 
 config REGULATOR_WM8400
 	tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC"
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 3342615cf25..e431eed8a87 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_REGULATOR_DA903X)	+= da903x.o
 obj-$(CONFIG_REGULATOR_DA9052)	+= da9052-regulator.o
 obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o
 obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
+obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o
 obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o
 obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
 obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
@@ -30,6 +31,7 @@ obj-$(CONFIG_REGULATOR_LP8788) += lp8788-ldo.o
 obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
 obj-$(CONFIG_REGULATOR_MAX8649)	+= max8649.o
 obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o
+obj-$(CONFIG_REGULATOR_MAX8907) += max8907-regulator.o
 obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o
 obj-$(CONFIG_REGULATOR_MAX8952) += max8952.o
 obj-$(CONFIG_REGULATOR_MAX8997) += max8997.o
diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c
index 6f45bfd22e8..167c93f2198 100644
--- a/drivers/regulator/aat2870-regulator.c
+++ b/drivers/regulator/aat2870-regulator.c
@@ -162,7 +162,7 @@ static struct aat2870_regulator *aat2870_get_regulator(int id)
 static int aat2870_regulator_probe(struct platform_device *pdev)
 {
 	struct aat2870_regulator *ri;
-	struct regulator_config config = { 0 };
+	struct regulator_config config = { };
 	struct regulator_dev *rdev;
 
 	ri = aat2870_get_regulator(pdev->id);
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index 182b553059c..65ad2b36ce3 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -347,17 +347,11 @@ static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg)
 	return abreg->plfdata->external_voltage;
 }
 
-static int ab3100_get_fixed_voltage_regulator(struct regulator_dev *reg)
-{
-	return reg->desc->min_uV;
-}
-
 static struct regulator_ops regulator_ops_fixed = {
 	.list_voltage = regulator_list_voltage_linear,
 	.enable      = ab3100_enable_regulator,
 	.disable     = ab3100_disable_regulator,
 	.is_enabled  = ab3100_is_enabled_regulator,
-	.get_voltage = ab3100_get_fixed_voltage_regulator,
 };
 
 static struct regulator_ops regulator_ops_variable = {
@@ -486,6 +480,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = {
 		.id   = AB3100_BUCK,
 		.ops  = &regulator_ops_variable_sleepable,
 		.n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages),
+		.volt_table = ldo_e_buck_typ_voltages,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_time = 1000,
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index 10f2f4d4d19..e3d1d063025 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -37,6 +37,7 @@
  * @voltage_bank: bank to control regulator voltage
  * @voltage_reg: register to control regulator voltage
  * @voltage_mask: mask to control regulator voltage
+ * @voltage_shift: shift to control regulator voltage
  * @delay: startup/set voltage delay in us
  */
 struct ab8500_regulator_info {
@@ -50,6 +51,7 @@ struct ab8500_regulator_info {
 	u8 voltage_bank;
 	u8 voltage_reg;
 	u8 voltage_mask;
+	u8 voltage_shift;
 	unsigned int delay;
 };
 
@@ -195,17 +197,14 @@ static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev)
 	}
 
 	dev_vdbg(rdev_get_dev(rdev),
-		"%s-get_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
-		" 0x%x\n",
-		info->desc.name, info->voltage_bank, info->voltage_reg,
-		info->voltage_mask, regval);
+		"%s-get_voltage (bank, reg, mask, shift, value): "
+		"0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
+		info->desc.name, info->voltage_bank,
+		info->voltage_reg, info->voltage_mask,
+		info->voltage_shift, regval);
 
-	/* vintcore has a different layout */
 	val = regval & info->voltage_mask;
-	if (info->desc.id == AB8500_LDO_INTCORE)
-		return val >> 0x3;
-	else
-		return val;
+	return val >> info->voltage_shift;
 }
 
 static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev,
@@ -221,7 +220,7 @@ static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev,
 	}
 
 	/* set the registers for the request */
-	regval = (u8)selector;
+	regval = (u8)selector << info->voltage_shift;
 	ret = abx500_mask_and_set_register_interruptible(info->dev,
 			info->voltage_bank, info->voltage_reg,
 			info->voltage_mask, regval);
@@ -238,13 +237,6 @@ static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev,
 	return ret;
 }
 
-static int ab8500_regulator_enable_time(struct regulator_dev *rdev)
-{
-	struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
-
-	return info->delay;
-}
-
 static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
 					     unsigned int old_sel,
 					     unsigned int new_sel)
@@ -261,22 +253,14 @@ static struct regulator_ops ab8500_regulator_ops = {
 	.get_voltage_sel = ab8500_regulator_get_voltage_sel,
 	.set_voltage_sel = ab8500_regulator_set_voltage_sel,
 	.list_voltage	= regulator_list_voltage_table,
-	.enable_time	= ab8500_regulator_enable_time,
 	.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
 };
 
-static int ab8500_fixed_get_voltage(struct regulator_dev *rdev)
-{
-	return rdev->desc->min_uV;
-}
-
 static struct regulator_ops ab8500_regulator_fixed_ops = {
 	.enable		= ab8500_regulator_enable,
 	.disable	= ab8500_regulator_disable,
 	.is_enabled	= ab8500_regulator_is_enabled,
-	.get_voltage	= ab8500_fixed_get_voltage,
 	.list_voltage	= regulator_list_voltage_linear,
-	.enable_time	= ab8500_regulator_enable_time,
 };
 
 static struct ab8500_regulator_info
@@ -358,6 +342,7 @@ static struct ab8500_regulator_info
 		.voltage_bank		= 0x03,
 		.voltage_reg		= 0x80,
 		.voltage_mask		= 0x38,
+		.voltage_shift		= 3,
 	},
 
 	/*
@@ -374,6 +359,7 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
 			.min_uV		= 2000000,
+			.enable_time	= 10000,
 		},
 		.delay			= 10000,
 		.update_bank		= 0x03,
diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index e9c2085f9df..ce0fe72a428 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -64,14 +64,15 @@ static int anatop_set_voltage_sel(struct regulator_dev *reg, unsigned selector)
 static int anatop_get_voltage_sel(struct regulator_dev *reg)
 {
 	struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
-	u32 val;
+	u32 val, mask;
 
 	if (!anatop_reg->control_reg)
 		return -ENOTSUPP;
 
 	val = anatop_read_reg(anatop_reg->mfd, anatop_reg->control_reg);
-	val = (val & ((1 << anatop_reg->vol_bit_width) - 1)) >>
+	mask = ((1 << anatop_reg->vol_bit_width) - 1) <<
 		anatop_reg->vol_bit_shift;
+	val = (val & mask) >> anatop_reg->vol_bit_shift;
 
 	return val - anatop_reg->min_bit_val;
 }
diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index c8f95c07adb..d184aa35abc 100644
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -39,6 +39,8 @@ static struct regulator_ops arizona_ldo1_ops = {
 	.map_voltage = regulator_map_voltage_linear,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_bypass = regulator_get_bypass_regmap,
+	.set_bypass = regulator_set_bypass_regmap,
 };
 
 static const struct regulator_desc arizona_ldo1 = {
@@ -49,9 +51,11 @@ static const struct regulator_desc arizona_ldo1 = {
 
 	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
 	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
+	.bypass_reg = ARIZONA_LDO1_CONTROL_1,
+	.bypass_mask = ARIZONA_LDO1_BYPASS,
 	.min_uV = 900000,
 	.uV_step = 50000,
-	.n_voltages = 7,
+	.n_voltages = 6,
 
 	.owner = THIS_MODULE,
 };
diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index 450a069aa9b..d9b1f82cc5b 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -82,6 +82,9 @@ static struct regulator_ops arizona_micsupp_ops = {
 
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+
+	.get_bypass = regulator_get_bypass_regmap,
+	.set_bypass = regulator_set_bypass_regmap,
 };
 
 static const struct regulator_desc arizona_micsupp = {
@@ -95,6 +98,8 @@ static const struct regulator_desc arizona_micsupp = {
 	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
 	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
 	.enable_mask = ARIZONA_CPMIC_ENA,
+	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+	.bypass_mask = ARIZONA_CPMIC_BYPASS,
 
 	.owner = THIS_MODULE,
 };
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f092588a078..5c4829cba6a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -77,6 +77,7 @@ struct regulator {
 	struct device *dev;
 	struct list_head list;
 	unsigned int always_on:1;
+	unsigned int bypass:1;
 	int uA_load;
 	int min_uV;
 	int max_uV;
@@ -394,6 +395,9 @@ static ssize_t regulator_status_show(struct device *dev,
 	case REGULATOR_STATUS_STANDBY:
 		label = "standby";
 		break;
+	case REGULATOR_STATUS_BYPASS:
+		label = "bypass";
+		break;
 	case REGULATOR_STATUS_UNDEFINED:
 		label = "undefined";
 		break;
@@ -585,6 +589,27 @@ static ssize_t regulator_suspend_standby_state_show(struct device *dev,
 static DEVICE_ATTR(suspend_standby_state, 0444,
 		regulator_suspend_standby_state_show, NULL);
 
+static ssize_t regulator_bypass_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct regulator_dev *rdev = dev_get_drvdata(dev);
+	const char *report;
+	bool bypass;
+	int ret;
+
+	ret = rdev->desc->ops->get_bypass(rdev, &bypass);
+
+	if (ret != 0)
+		report = "unknown";
+	else if (bypass)
+		report = "enabled";
+	else
+		report = "disabled";
+
+	return sprintf(buf, "%s\n", report);
+}
+static DEVICE_ATTR(bypass, 0444,
+		   regulator_bypass_show, NULL);
 
 /*
  * These are the only attributes are present for all regulators.
@@ -778,6 +803,9 @@ static void print_constraints(struct regulator_dev *rdev)
 	if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
 		count += sprintf(buf + count, "standby");
 
+	if (!count)
+		sprintf(buf, "no parameters");
+
 	rdev_info(rdev, "%s\n", buf);
 
 	if ((constraints->min_uV != constraints->max_uV) &&
@@ -974,6 +1002,7 @@ static int set_supply(struct regulator_dev *rdev,
 		err = -ENOMEM;
 		return err;
 	}
+	supply_rdev->open_count++;
 
 	return 0;
 }
@@ -1720,6 +1749,9 @@ int regulator_disable_deferred(struct regulator *regulator, int ms)
 	if (regulator->always_on)
 		return 0;
 
+	if (!ms)
+		return regulator_disable(regulator);
+
 	mutex_lock(&rdev->mutex);
 	rdev->deferred_disables++;
 	mutex_unlock(&rdev->mutex);
@@ -2178,9 +2210,12 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 		}
 	}
 
-	if (ret == 0 && best_val >= 0)
+	if (ret == 0 && best_val >= 0) {
+		unsigned long data = best_val;
+
 		_notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE,
-				     (void *)best_val);
+				     (void *)data);
+	}
 
 	trace_regulator_set_voltage_complete(rdev_get_name(rdev), best_val);
 
@@ -2291,8 +2326,8 @@ int regulator_set_voltage_time(struct regulator *regulator,
 EXPORT_SYMBOL_GPL(regulator_set_voltage_time);
 
 /**
- *regulator_set_voltage_time_sel - get raise/fall time
- * @regulator: regulator source
+ * regulator_set_voltage_time_sel - get raise/fall time
+ * @rdev: regulator source device
  * @old_selector: selector for starting voltage
  * @new_selector: selector for target voltage
  *
@@ -2388,6 +2423,8 @@ static int _regulator_get_voltage(struct regulator_dev *rdev)
 		ret = rdev->desc->ops->list_voltage(rdev, sel);
 	} else if (rdev->desc->ops->get_voltage) {
 		ret = rdev->desc->ops->get_voltage(rdev);
+	} else if (rdev->desc->ops->list_voltage) {
+		ret = rdev->desc->ops->list_voltage(rdev, 0);
 	} else {
 		return -EINVAL;
 	}
@@ -2674,6 +2711,100 @@ out:
 EXPORT_SYMBOL_GPL(regulator_set_optimum_mode);
 
 /**
+ * regulator_set_bypass_regmap - Default set_bypass() using regmap
+ *
+ * @rdev: device to operate on.
+ * @enable: state to set.
+ */
+int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable)
+{
+	unsigned int val;
+
+	if (enable)
+		val = rdev->desc->bypass_mask;
+	else
+		val = 0;
+
+	return regmap_update_bits(rdev->regmap, rdev->desc->bypass_reg,
+				  rdev->desc->bypass_mask, val);
+}
+EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap);
+
+/**
+ * regulator_get_bypass_regmap - Default get_bypass() using regmap
+ *
+ * @rdev: device to operate on.
+ * @enable: current state.
+ */
+int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
+{
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val);
+	if (ret != 0)
+		return ret;
+
+	*enable = val & rdev->desc->bypass_mask;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap);
+
+/**
+ * regulator_allow_bypass - allow the regulator to go into bypass mode
+ *
+ * @regulator: Regulator to configure
+ * @allow: enable or disable bypass mode
+ *
+ * Allow the regulator to go into bypass mode if all other consumers
+ * for the regulator also enable bypass mode and the machine
+ * constraints allow this.  Bypass mode means that the regulator is
+ * simply passing the input directly to the output with no regulation.
+ */
+int regulator_allow_bypass(struct regulator *regulator, bool enable)
+{
+	struct regulator_dev *rdev = regulator->rdev;
+	int ret = 0;
+
+	if (!rdev->desc->ops->set_bypass)
+		return 0;
+
+	if (rdev->constraints &&
+	    !(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_BYPASS))
+		return 0;
+
+	mutex_lock(&rdev->mutex);
+
+	if (enable && !regulator->bypass) {
+		rdev->bypass_count++;
+
+		if (rdev->bypass_count == rdev->open_count) {
+			ret = rdev->desc->ops->set_bypass(rdev, enable);
+			if (ret != 0)
+				rdev->bypass_count--;
+		}
+
+	} else if (!enable && regulator->bypass) {
+		rdev->bypass_count--;
+
+		if (rdev->bypass_count != rdev->open_count) {
+			ret = rdev->desc->ops->set_bypass(rdev, enable);
+			if (ret != 0)
+				rdev->bypass_count++;
+		}
+	}
+
+	if (ret == 0)
+		regulator->bypass = enable;
+
+	mutex_unlock(&rdev->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_allow_bypass);
+
+/**
  * regulator_register_notifier - register regulator event notifier
  * @regulator: regulator source
  * @nb: notifier block
@@ -3011,7 +3142,8 @@ static int add_regulator_attributes(struct regulator_dev *rdev)
 
 	/* some attributes need specific methods to be displayed */
 	if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
-	    (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0)) {
+	    (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0) ||
+	    (ops->list_voltage && ops->list_voltage(rdev, 0) >= 0)) {
 		status = device_create_file(dev, &dev_attr_microvolts);
 		if (status < 0)
 			return status;
@@ -3036,6 +3168,11 @@ static int add_regulator_attributes(struct regulator_dev *rdev)
 		if (status < 0)
 			return status;
 	}
+	if (ops->get_bypass) {
+		status = device_create_file(dev, &dev_attr_bypass);
+		if (status < 0)
+			return status;
+	}
 
 	/* some attributes are type-specific */
 	if (rdev->desc->type == REGULATOR_CURRENT) {
@@ -3124,6 +3261,8 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
 			   &rdev->use_count);
 	debugfs_create_u32("open_count", 0444, rdev->debugfs,
 			   &rdev->open_count);
+	debugfs_create_u32("bypass_count", 0444, rdev->debugfs,
+			   &rdev->bypass_count);
 }
 
 /**
@@ -3189,8 +3328,10 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	rdev->desc = regulator_desc;
 	if (config->regmap)
 		rdev->regmap = config->regmap;
-	else
+	else if (dev_get_regmap(dev, NULL))
 		rdev->regmap = dev_get_regmap(dev, NULL);
+	else if (dev->parent)
+		rdev->regmap = dev_get_regmap(dev->parent, NULL);
 	INIT_LIST_HEAD(&rdev->consumer_list);
 	INIT_LIST_HEAD(&rdev->list);
 	BLOCKING_INIT_NOTIFIER_HEAD(&rdev->notifier);
@@ -3217,7 +3358,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
 
 	dev_set_drvdata(&rdev->dev, rdev);
 
-	if (config->ena_gpio) {
+	if (config->ena_gpio && gpio_is_valid(config->ena_gpio)) {
 		ret = gpio_request_one(config->ena_gpio,
 				       GPIOF_DIR_OUT | config->ena_gpio_flags,
 				       rdev_get_name(rdev));
@@ -3335,7 +3476,7 @@ void regulator_unregister(struct regulator_dev *rdev)
 		regulator_put(rdev->supply);
 	mutex_lock(&regulator_list_mutex);
 	debugfs_remove_recursive(rdev->debugfs);
-	flush_work_sync(&rdev->disable_work.work);
+	flush_work(&rdev->disable_work.work);
 	WARN_ON(rdev->open_count);
 	unset_regulator_supplies(rdev);
 	list_del(&rdev->list);
diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index 903299cf15c..27355b1199e 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -133,8 +133,8 @@ static int da9052_dcdc_set_current_limit(struct regulator_dev *rdev, int min_uA,
 	    max_uA < da9052_current_limits[row][DA9052_MIN_UA])
 		return -EINVAL;
 
-	for (i = 0; i < DA9052_CURRENT_RANGE; i++) {
-		if (min_uA <= da9052_current_limits[row][i]) {
+	for (i = DA9052_CURRENT_RANGE - 1; i >= 0; i--) {
+		if (da9052_current_limits[row][i] <= max_uA) {
 			reg_val = i;
 			break;
 		}
diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c
index 86f655c7f7a..03a1d7c11ef 100644
--- a/drivers/regulator/dummy.c
+++ b/drivers/regulator/dummy.c
@@ -30,7 +30,7 @@ static struct regulator_init_data dummy_initdata;
 static struct regulator_ops dummy_ops;
 
 static struct regulator_desc dummy_desc = {
-	.name = "dummy",
+	.name = "regulator-dummy",
 	.id = -1,
 	.type = REGULATOR_VOLTAGE,
 	.owner = THIS_MODULE,
diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
new file mode 100644
index 00000000000..339f4d732e9
--- /dev/null
+++ b/drivers/regulator/fan53555.c
@@ -0,0 +1,322 @@
+/*
+ * FAN53555 Fairchild Digitally Programmable TinyBuck Regulator Driver.
+ *
+ * Supported Part Numbers:
+ * FAN53555UC00X/01X/03X/04X/05X
+ *
+ * Copyright (c) 2012 Marvell Technology Ltd.
+ * Yunfan Zhang <yfzhang@marvell.com>
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/module.h>
+#include <linux/param.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+#include <linux/regulator/fan53555.h>
+
+/* Voltage setting */
+#define FAN53555_VSEL0		0x00
+#define FAN53555_VSEL1		0x01
+/* Control register */
+#define FAN53555_CONTROL	0x02
+/* IC Type */
+#define FAN53555_ID1		0x03
+/* IC mask version */
+#define FAN53555_ID2		0x04
+/* Monitor register */
+#define FAN53555_MONITOR	0x05
+
+/* VSEL bit definitions */
+#define VSEL_BUCK_EN	(1 << 7)
+#define VSEL_MODE		(1 << 6)
+#define VSEL_NSEL_MASK	0x3F
+/* Chip ID and Verison */
+#define DIE_ID		0x0F	/* ID1 */
+#define DIE_REV		0x0F	/* ID2 */
+/* Control bit definitions */
+#define CTL_OUTPUT_DISCHG	(1 << 7)
+#define CTL_SLEW_MASK		(0x7 << 4)
+#define CTL_SLEW_SHIFT		4
+#define CTL_RESET			(1 << 2)
+
+#define FAN53555_NVOLTAGES	64	/* Numbers of voltages */
+
+/* IC Type */
+enum {
+	FAN53555_CHIP_ID_00 = 0,
+	FAN53555_CHIP_ID_01,
+	FAN53555_CHIP_ID_02,
+	FAN53555_CHIP_ID_03,
+	FAN53555_CHIP_ID_04,
+	FAN53555_CHIP_ID_05,
+};
+
+struct fan53555_device_info {
+	struct regmap *regmap;
+	struct device *dev;
+	struct regulator_desc desc;
+	struct regulator_dev *rdev;
+	struct regulator_init_data *regulator;
+	/* IC Type and Rev */
+	int chip_id;
+	int chip_rev;
+	/* Voltage setting register */
+	unsigned int vol_reg;
+	unsigned int sleep_reg;
+	/* Voltage range and step(linear) */
+	unsigned int vsel_min;
+	unsigned int vsel_step;
+	/* Voltage slew rate limiting */
+	unsigned int slew_rate;
+	/* Sleep voltage cache */
+	unsigned int sleep_vol_cache;
+};
+
+static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV)
+{
+	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
+	int ret;
+
+	if (di->sleep_vol_cache == uV)
+		return 0;
+	ret = regulator_map_voltage_linear(rdev, uV, uV);
+	if (ret < 0)
+		return -EINVAL;
+	ret = regmap_update_bits(di->regmap, di->sleep_reg,
+					VSEL_NSEL_MASK, ret);
+	if (ret < 0)
+		return -EINVAL;
+	/* Cache the sleep voltage setting.
+	 * Might not be the real voltage which is rounded */
+	di->sleep_vol_cache = uV;
+
+	return 0;
+}
+
+static int fan53555_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		regmap_update_bits(di->regmap, di->vol_reg,
+				VSEL_MODE, VSEL_MODE);
+		break;
+	case REGULATOR_MODE_NORMAL:
+		regmap_update_bits(di->regmap, di->vol_reg, VSEL_MODE, 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static unsigned int fan53555_get_mode(struct regulator_dev *rdev)
+{
+	struct fan53555_device_info *di = rdev_get_drvdata(rdev);
+	unsigned int val;
+	int ret = 0;
+
+	ret = regmap_read(di->regmap, di->vol_reg, &val);
+	if (ret < 0)
+		return ret;
+	if (val & VSEL_MODE)
+		return REGULATOR_MODE_FAST;
+	else
+		return REGULATOR_MODE_NORMAL;
+}
+
+static struct regulator_ops fan53555_regulator_ops = {
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.map_voltage = regulator_map_voltage_linear,
+	.list_voltage = regulator_list_voltage_linear,
+	.set_suspend_voltage = fan53555_set_suspend_voltage,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+	.set_mode = fan53555_set_mode,
+	.get_mode = fan53555_get_mode,
+};
+
+/* For 00,01,03,05 options:
+ * VOUT = 0.60V + NSELx * 10mV, from 0.60 to 1.23V.
+ * For 04 option:
+ * VOUT = 0.603V + NSELx * 12.826mV, from 0.603 to 1.411V.
+ * */
+static int fan53555_device_setup(struct fan53555_device_info *di,
+				struct fan53555_platform_data *pdata)
+{
+	unsigned int reg, data, mask;
+
+	/* Setup voltage control register */
+	switch (pdata->sleep_vsel_id) {
+	case FAN53555_VSEL_ID_0:
+		di->sleep_reg = FAN53555_VSEL0;
+		di->vol_reg = FAN53555_VSEL1;
+		break;
+	case FAN53555_VSEL_ID_1:
+		di->sleep_reg = FAN53555_VSEL1;
+		di->vol_reg = FAN53555_VSEL0;
+		break;
+	default:
+		dev_err(di->dev, "Invalid VSEL ID!\n");
+		return -EINVAL;
+	}
+	/* Init voltage range and step */
+	switch (di->chip_id) {
+	case FAN53555_CHIP_ID_00:
+	case FAN53555_CHIP_ID_01:
+	case FAN53555_CHIP_ID_03:
+	case FAN53555_CHIP_ID_05:
+		di->vsel_min = 600000;
+		di->vsel_step = 10000;
+		break;
+	case FAN53555_CHIP_ID_04:
+		di->vsel_min = 603000;
+		di->vsel_step = 12826;
+		break;
+	default:
+		dev_err(di->dev,
+			"Chip ID[%d]\n not supported!\n", di->chip_id);
+		return -EINVAL;
+	}
+	/* Init slew rate */
+	if (pdata->slew_rate & 0x7)
+		di->slew_rate = pdata->slew_rate;
+	else
+		di->slew_rate = FAN53555_SLEW_RATE_64MV;
+	reg = FAN53555_CONTROL;
+	data = di->slew_rate << CTL_SLEW_SHIFT;
+	mask = CTL_SLEW_MASK;
+	return regmap_update_bits(di->regmap, reg, mask, data);
+}
+
+static int fan53555_regulator_register(struct fan53555_device_info *di,
+			struct regulator_config *config)
+{
+	struct regulator_desc *rdesc = &di->desc;
+
+	rdesc->name = "fan53555-reg";
+	rdesc->ops = &fan53555_regulator_ops;
+	rdesc->type = REGULATOR_VOLTAGE;
+	rdesc->n_voltages = FAN53555_NVOLTAGES;
+	rdesc->enable_reg = di->vol_reg;
+	rdesc->enable_mask = VSEL_BUCK_EN;
+	rdesc->min_uV = di->vsel_min;
+	rdesc->uV_step = di->vsel_step;
+	rdesc->vsel_reg = di->vol_reg;
+	rdesc->vsel_mask = VSEL_NSEL_MASK;
+	rdesc->owner = THIS_MODULE;
+
+	di->rdev = regulator_register(&di->desc, config);
+	if (IS_ERR(di->rdev))
+		return PTR_ERR(di->rdev);
+	return 0;
+
+}
+
+static struct regmap_config fan53555_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+static int __devinit fan53555_regulator_probe(struct i2c_client *client,
+				const struct i2c_device_id *id)
+{
+	struct fan53555_device_info *di;
+	struct fan53555_platform_data *pdata;
+	struct regulator_config config = { };
+	unsigned int val;
+	int ret;
+
+	pdata = client->dev.platform_data;
+	if (!pdata || !pdata->regulator) {
+		dev_err(&client->dev, "Platform data not found!\n");
+		return -ENODEV;
+	}
+
+	di = devm_kzalloc(&client->dev, sizeof(struct fan53555_device_info),
+					GFP_KERNEL);
+	if (!di) {
+		dev_err(&client->dev, "Failed to allocate device info data!\n");
+		return -ENOMEM;
+	}
+	di->regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config);
+	if (IS_ERR(di->regmap)) {
+		dev_err(&client->dev, "Failed to allocate regmap!\n");
+		return PTR_ERR(di->regmap);
+	}
+	di->dev = &client->dev;
+	di->regulator = pdata->regulator;
+	i2c_set_clientdata(client, di);
+	/* Get chip ID */
+	ret = regmap_read(di->regmap, FAN53555_ID1, &val);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to get chip ID!\n");
+		return -ENODEV;
+	}
+	di->chip_id = val & DIE_ID;
+	/* Get chip revision */
+	ret = regmap_read(di->regmap, FAN53555_ID2, &val);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to get chip Rev!\n");
+		return -ENODEV;
+	}
+	di->chip_rev = val & DIE_REV;
+	dev_info(&client->dev, "FAN53555 Option[%d] Rev[%d] Detected!\n",
+				di->chip_id, di->chip_rev);
+	/* Device init */
+	ret = fan53555_device_setup(di, pdata);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to setup device!\n");
+		return ret;
+	}
+	/* Register regulator */
+	config.dev = di->dev;
+	config.init_data = di->regulator;
+	config.regmap = di->regmap;
+	config.driver_data = di;
+	ret = fan53555_regulator_register(di, &config);
+	if (ret < 0)
+		dev_err(&client->dev, "Failed to register regulator!\n");
+	return ret;
+
+}
+
+static int __devexit fan53555_regulator_remove(struct i2c_client *client)
+{
+	struct fan53555_device_info *di = i2c_get_clientdata(client);
+
+	regulator_unregister(di->rdev);
+	return 0;
+}
+
+static const struct i2c_device_id fan53555_id[] = {
+	{"fan53555", -1},
+	{ },
+};
+
+static struct i2c_driver fan53555_regulator_driver = {
+	.driver = {
+		.name = "fan53555-regulator",
+	},
+	.probe = fan53555_regulator_probe,
+	.remove = __devexit_p(fan53555_regulator_remove),
+	.id_table = fan53555_id,
+};
+
+module_i2c_driver(fan53555_regulator_driver);
+
+MODULE_AUTHOR("Yunfan Zhang <yfzhang@marvell.com>");
+MODULE_DESCRIPTION("FAN53555 regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 34b67bee932..8b5944f2d7d 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -57,16 +57,17 @@ static int gpio_regulator_get_value(struct regulator_dev *dev)
 	return -EINVAL;
 }
 
-static int gpio_regulator_set_value(struct regulator_dev *dev,
-					int min, int max, unsigned *selector)
+static int gpio_regulator_set_voltage(struct regulator_dev *dev,
+					int min_uV, int max_uV,
+					unsigned *selector)
 {
 	struct gpio_regulator_data *data = rdev_get_drvdata(dev);
 	int ptr, target = 0, state, best_val = INT_MAX;
 
 	for (ptr = 0; ptr < data->nr_states; ptr++)
 		if (data->states[ptr].value < best_val &&
-		    data->states[ptr].value >= min &&
-		    data->states[ptr].value <= max) {
+		    data->states[ptr].value >= min_uV &&
+		    data->states[ptr].value <= max_uV) {
 			target = data->states[ptr].gpios;
 			best_val = data->states[ptr].value;
 			if (selector)
@@ -85,13 +86,6 @@ static int gpio_regulator_set_value(struct regulator_dev *dev,
 	return 0;
 }
 
-static int gpio_regulator_set_voltage(struct regulator_dev *dev,
-					int min_uV, int max_uV,
-					unsigned *selector)
-{
-	return gpio_regulator_set_value(dev, min_uV, max_uV, selector);
-}
-
 static int gpio_regulator_list_voltage(struct regulator_dev *dev,
 				      unsigned selector)
 {
@@ -106,7 +100,27 @@ static int gpio_regulator_list_voltage(struct regulator_dev *dev,
 static int gpio_regulator_set_current_limit(struct regulator_dev *dev,
 					int min_uA, int max_uA)
 {
-	return gpio_regulator_set_value(dev, min_uA, max_uA, NULL);
+	struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+	int ptr, target = 0, state, best_val = 0;
+
+	for (ptr = 0; ptr < data->nr_states; ptr++)
+		if (data->states[ptr].value > best_val &&
+		    data->states[ptr].value >= min_uA &&
+		    data->states[ptr].value <= max_uA) {
+			target = data->states[ptr].gpios;
+			best_val = data->states[ptr].value;
+		}
+
+	if (best_val == 0)
+		return -EINVAL;
+
+	for (ptr = 0; ptr < data->nr_gpios; ptr++) {
+		state = (target & (1 << ptr)) >> ptr;
+		gpio_set_value(data->gpios[ptr].gpio, state);
+	}
+	data->state = target;
+
+	return 0;
 }
 
 static struct regulator_ops gpio_regulator_voltage_ops = {
diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c
index 1d145a07ada..d8ecf49a577 100644
--- a/drivers/regulator/isl6271a-regulator.c
+++ b/drivers/regulator/isl6271a-regulator.c
@@ -73,13 +73,7 @@ static struct regulator_ops isl_core_ops = {
 	.map_voltage	= regulator_map_voltage_linear,
 };
 
-static int isl6271a_get_fixed_voltage(struct regulator_dev *dev)
-{
-	return dev->desc->min_uV;
-}
-
 static struct regulator_ops isl_fixed_ops = {
-	.get_voltage	= isl6271a_get_fixed_voltage,
 	.list_voltage	= regulator_list_voltage_linear,
 };
 
diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c
index 212c38eaba7..708f4b6a17d 100644
--- a/drivers/regulator/lp872x.c
+++ b/drivers/regulator/lp872x.c
@@ -86,6 +86,10 @@
 #define EXTERN_DVS_USED			0
 #define MAX_DELAY			6
 
+/* Default DVS Mode */
+#define LP8720_DEFAULT_DVS		0
+#define LP8725_DEFAULT_DVS		BIT(2)
+
 /* dump registers in regmap-debugfs */
 #define MAX_REGISTERS			0x0F
 
@@ -269,9 +273,9 @@ static int lp872x_regulator_enable_time(struct regulator_dev *rdev)
 	return val > MAX_DELAY ? 0 : val * time_step_us;
 }
 
-static void lp872x_set_dvs(struct lp872x *lp, int gpio)
+static void lp872x_set_dvs(struct lp872x *lp, enum lp872x_dvs_sel dvs_sel,
+			int gpio)
 {
-	enum lp872x_dvs_sel dvs_sel = lp->pdata->dvs->vsel;
 	enum lp872x_dvs_state state;
 
 	state = dvs_sel == SEL_V1 ? DVS_HIGH : DVS_LOW;
@@ -339,10 +343,10 @@ static int lp872x_buck_set_voltage_sel(struct regulator_dev *rdev,
 	struct lp872x *lp = rdev_get_drvdata(rdev);
 	enum lp872x_regulator_id buck = rdev_get_id(rdev);
 	u8 addr, mask = LP872X_VOUT_M;
-	struct lp872x_dvs *dvs = lp->pdata->dvs;
+	struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL;
 
 	if (dvs && gpio_is_valid(dvs->gpio))
-		lp872x_set_dvs(lp, dvs->gpio);
+		lp872x_set_dvs(lp, dvs->vsel, dvs->gpio);
 
 	addr = lp872x_select_buck_vout_addr(lp, buck);
 	if (!lp872x_is_valid_buck_addr(addr))
@@ -374,8 +378,8 @@ static int lp8725_buck_set_current_limit(struct regulator_dev *rdev,
 {
 	struct lp872x *lp = rdev_get_drvdata(rdev);
 	enum lp872x_regulator_id buck = rdev_get_id(rdev);
-	int i, max = ARRAY_SIZE(lp8725_buck_uA);
-	u8 addr, val;
+	int i;
+	u8 addr;
 
 	switch (buck) {
 	case LP8725_ID_BUCK1:
@@ -388,17 +392,15 @@ static int lp8725_buck_set_current_limit(struct regulator_dev *rdev,
 		return -EINVAL;
 	}
 
-	for (i = 0 ; i < max ; i++)
+	for (i = ARRAY_SIZE(lp8725_buck_uA) - 1 ; i >= 0; i--) {
 		if (lp8725_buck_uA[i] >= min_uA &&
 			lp8725_buck_uA[i] <= max_uA)
-			break;
-
-	if (i == max)
-		return -EINVAL;
-
-	val = i << LP8725_BUCK_CL_S;
+			return lp872x_update_bits(lp, addr,
+						  LP8725_BUCK_CL_M,
+						  i << LP8725_BUCK_CL_S);
+	}
 
-	return lp872x_update_bits(lp, addr, LP8725_BUCK_CL_M, val);
+	return -EINVAL;
 }
 
 static int lp8725_buck_get_current_limit(struct regulator_dev *rdev)
@@ -727,39 +729,16 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 };
 
-static int lp872x_check_dvs_validity(struct lp872x *lp)
-{
-	struct lp872x_dvs *dvs = lp->pdata->dvs;
-	u8 val = 0;
-	int ret;
-
-	ret = lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val);
-	if (ret)
-		return ret;
-
-	ret = 0;
-	if (lp->chipid == LP8720) {
-		if (val & LP8720_EXT_DVS_M)
-			ret = dvs ? 0 : -EINVAL;
-	} else {
-		if ((val & LP8725_DVS1_M) == EXTERN_DVS_USED)
-			ret = dvs ? 0 : -EINVAL;
-	}
-
-	return ret;
-}
-
 static int lp872x_init_dvs(struct lp872x *lp)
 {
 	int ret, gpio;
-	struct lp872x_dvs *dvs = lp->pdata->dvs;
+	struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL;
 	enum lp872x_dvs_state pinstate;
+	u8 mask[] = { LP8720_EXT_DVS_M, LP8725_DVS1_M | LP8725_DVS2_M };
+	u8 default_dvs_mode[] = { LP8720_DEFAULT_DVS, LP8725_DEFAULT_DVS };
 
-	ret = lp872x_check_dvs_validity(lp);
-	if (ret) {
-		dev_warn(lp->dev, "invalid dvs data: %d\n", ret);
-		return ret;
-	}
+	if (!dvs)
+		goto set_default_dvs_mode;
 
 	gpio = dvs->gpio;
 	if (!gpio_is_valid(gpio)) {
@@ -778,6 +757,10 @@ static int lp872x_init_dvs(struct lp872x *lp)
 	lp->dvs_gpio = gpio;
 
 	return 0;
+
+set_default_dvs_mode:
+	return lp872x_update_bits(lp, LP872X_GENERAL_CFG, mask[lp->chipid],
+				default_dvs_mode[lp->chipid]);
 }
 
 static int lp872x_config(struct lp872x *lp)
@@ -785,24 +768,29 @@ static int lp872x_config(struct lp872x *lp)
 	struct lp872x_platform_data *pdata = lp->pdata;
 	int ret;
 
-	if (!pdata->update_config)
-		return 0;
+	if (!pdata || !pdata->update_config)
+		goto init_dvs;
 
 	ret = lp872x_write_byte(lp, LP872X_GENERAL_CFG, pdata->general_config);
 	if (ret)
 		return ret;
 
+init_dvs:
 	return lp872x_init_dvs(lp);
 }
 
 static struct regulator_init_data
 *lp872x_find_regulator_init_data(int id, struct lp872x *lp)
 {
+	struct lp872x_platform_data *pdata = lp->pdata;
 	int i;
 
+	if (!pdata)
+		return NULL;
+
 	for (i = 0; i < lp->num_regulators; i++) {
-		if (lp->pdata->regulator_data[i].id == id)
-			return lp->pdata->regulator_data[i].init_data;
+		if (pdata->regulator_data[i].id == id)
+			return pdata->regulator_data[i].init_data;
 	}
 
 	return NULL;
@@ -863,18 +851,12 @@ static const struct regmap_config lp872x_regmap_config = {
 static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 {
 	struct lp872x *lp;
-	struct lp872x_platform_data *pdata = cl->dev.platform_data;
 	int ret, size, num_regulators;
 	const int lp872x_num_regulators[] = {
 		[LP8720] = LP8720_NUM_REGULATORS,
 		[LP8725] = LP8725_NUM_REGULATORS,
 	};
 
-	if (!pdata) {
-		dev_err(&cl->dev, "no platform data\n");
-		return -EINVAL;
-	}
-
 	lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL);
 	if (!lp)
 		goto err_mem;
@@ -894,7 +876,7 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	}
 
 	lp->dev = &cl->dev;
-	lp->pdata = pdata;
+	lp->pdata = cl->dev.platform_data;
 	lp->chipid = id->driver_data;
 	lp->num_regulators = num_regulators;
 	i2c_set_clientdata(cl, lp);
diff --git a/drivers/regulator/lp8788-buck.c b/drivers/regulator/lp8788-buck.c
index 6356e821400..ba3e0aa402d 100644
--- a/drivers/regulator/lp8788-buck.c
+++ b/drivers/regulator/lp8788-buck.c
@@ -69,6 +69,9 @@
 #define PIN_HIGH			1
 #define ENABLE_TIME_USEC		32
 
+#define BUCK_FPWM_MASK(x)		(1 << (x))
+#define BUCK_FPWM_SHIFT(x)		(x)
+
 enum lp8788_dvs_state {
 	DVS_LOW  = GPIOF_OUT_INIT_LOW,
 	DVS_HIGH = GPIOF_OUT_INIT_HIGH,
@@ -86,15 +89,9 @@ enum lp8788_buck_id {
 	BUCK4,
 };
 
-struct lp8788_pwm_map {
-	u8 mask;
-	u8 shift;
-};
-
 struct lp8788_buck {
 	struct lp8788 *lp;
 	struct regulator_dev *regulator;
-	struct lp8788_pwm_map *pmap;
 	void *dvs;
 };
 
@@ -106,29 +103,6 @@ static const int lp8788_buck_vtbl[] = {
 	1950000, 2000000,
 };
 
-/* buck pwm mode selection : used for set/get_mode in regulator ops
- * @forced pwm : fast mode
- * @auto pwm   : normal mode
- */
-static struct lp8788_pwm_map buck_pmap[] = {
-	[BUCK1] = {
-		.mask = LP8788_FPWM_BUCK1_M,
-		.shift = LP8788_FPWM_BUCK1_S,
-	},
-	[BUCK2] = {
-		.mask = LP8788_FPWM_BUCK2_M,
-		.shift = LP8788_FPWM_BUCK2_S,
-	},
-	[BUCK3] = {
-		.mask = LP8788_FPWM_BUCK3_M,
-		.shift = LP8788_FPWM_BUCK3_S,
-	},
-	[BUCK4] = {
-		.mask = LP8788_FPWM_BUCK4_M,
-		.shift = LP8788_FPWM_BUCK4_S,
-	},
-};
-
 static const u8 buck1_vout_addr[] = {
 	LP8788_BUCK1_VOUT0, LP8788_BUCK1_VOUT1,
 	LP8788_BUCK1_VOUT2, LP8788_BUCK1_VOUT3,
@@ -347,41 +321,37 @@ static int lp8788_buck_enable_time(struct regulator_dev *rdev)
 static int lp8788_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
 {
 	struct lp8788_buck *buck = rdev_get_drvdata(rdev);
-	struct lp8788_pwm_map *pmap = buck->pmap;
-	u8 val;
-
-	if (!pmap)
-		return -EINVAL;
+	enum lp8788_buck_id id = rdev_get_id(rdev);
+	u8 mask, val;
 
+	mask = BUCK_FPWM_MASK(id);
 	switch (mode) {
 	case REGULATOR_MODE_FAST:
-		val = LP8788_FORCE_PWM << pmap->shift;
+		val = LP8788_FORCE_PWM << BUCK_FPWM_SHIFT(id);
 		break;
 	case REGULATOR_MODE_NORMAL:
-		val = LP8788_AUTO_PWM << pmap->shift;
+		val = LP8788_AUTO_PWM << BUCK_FPWM_SHIFT(id);
 		break;
 	default:
 		return -EINVAL;
 	}
 
-	return lp8788_update_bits(buck->lp, LP8788_BUCK_PWM, pmap->mask, val);
+	return lp8788_update_bits(buck->lp, LP8788_BUCK_PWM, mask, val);
 }
 
 static unsigned int lp8788_buck_get_mode(struct regulator_dev *rdev)
 {
 	struct lp8788_buck *buck = rdev_get_drvdata(rdev);
-	struct lp8788_pwm_map *pmap = buck->pmap;
+	enum lp8788_buck_id id = rdev_get_id(rdev);
 	u8 val;
 	int ret;
 
-	if (!pmap)
-		return -EINVAL;
-
 	ret = lp8788_read_byte(buck->lp, LP8788_BUCK_PWM, &val);
 	if (ret)
 		return ret;
 
-	return val & pmap->mask ? REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
+	return val & BUCK_FPWM_MASK(id) ?
+				REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
 }
 
 static struct regulator_ops lp8788_buck12_ops = {
@@ -459,27 +429,6 @@ static struct regulator_desc lp8788_buck_desc[] = {
 	},
 };
 
-static int lp8788_set_default_dvs_ctrl_mode(struct lp8788 *lp,
-					enum lp8788_buck_id id)
-{
-	u8 mask, val;
-
-	switch (id) {
-	case BUCK1:
-		mask = LP8788_BUCK1_DVS_SEL_M;
-		val  = LP8788_BUCK1_DVS_I2C;
-		break;
-	case BUCK2:
-		mask = LP8788_BUCK2_DVS_SEL_M;
-		val  = LP8788_BUCK2_DVS_I2C;
-		break;
-	default:
-		return 0;
-	}
-
-	return lp8788_update_bits(lp, LP8788_BUCK_DVS_SEL, mask, val);
-}
-
 static int _gpio_request(struct lp8788_buck *buck, int gpio, char *name)
 {
 	struct device *dev = buck->lp->dev;
@@ -530,6 +479,7 @@ static int lp8788_init_dvs(struct lp8788_buck *buck, enum lp8788_buck_id id)
 	struct lp8788_platform_data *pdata = buck->lp->pdata;
 	u8 mask[] = { LP8788_BUCK1_DVS_SEL_M, LP8788_BUCK2_DVS_SEL_M };
 	u8 val[]  = { LP8788_BUCK1_DVS_PIN, LP8788_BUCK2_DVS_PIN };
+	u8 default_dvs_mode[] = { LP8788_BUCK1_DVS_I2C, LP8788_BUCK2_DVS_I2C };
 
 	/* no dvs for buck3, 4 */
 	if (id == BUCK3 || id == BUCK4)
@@ -550,7 +500,8 @@ static int lp8788_init_dvs(struct lp8788_buck *buck, enum lp8788_buck_id id)
 				val[id]);
 
 set_default_dvs_mode:
-	return lp8788_set_default_dvs_ctrl_mode(buck->lp, id);
+	return lp8788_update_bits(buck->lp, LP8788_BUCK_DVS_SEL, mask[id],
+				  default_dvs_mode[id]);
 }
 
 static __devinit int lp8788_buck_probe(struct platform_device *pdev)
@@ -567,7 +518,6 @@ static __devinit int lp8788_buck_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	buck->lp = lp;
-	buck->pmap = &buck_pmap[id];
 
 	ret = lp8788_init_dvs(buck, id);
 	if (ret)
diff --git a/drivers/regulator/lp8788-ldo.c b/drivers/regulator/lp8788-ldo.c
index d2122e41a96..6796eeb47dc 100644
--- a/drivers/regulator/lp8788-ldo.c
+++ b/drivers/regulator/lp8788-ldo.c
@@ -496,6 +496,7 @@ static struct regulator_desc lp8788_dldo_desc[] = {
 		.name = "dldo12",
 		.id = DLDO12,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
@@ -521,6 +522,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo2",
 		.id = ALDO2,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
@@ -530,6 +532,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo3",
 		.id = ALDO3,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
@@ -539,6 +542,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo4",
 		.id = ALDO4,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
@@ -548,6 +552,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo5",
 		.id = ALDO5,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
@@ -583,6 +588,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo8",
 		.id = ALDO8,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
@@ -592,6 +598,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo9",
 		.id = ALDO9,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
@@ -601,6 +608,7 @@ static struct regulator_desc lp8788_aldo_desc[] = {
 		.name = "aldo10",
 		.id = ALDO10,
 		.ops = &lp8788_ldo_voltage_fixed_ops,
+		.n_voltages = 1,
 		.type = REGULATOR_VOLTAGE,
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
index c564af6f05a..2a67d08658a 100644
--- a/drivers/regulator/max77686.c
+++ b/drivers/regulator/max77686.c
@@ -66,7 +66,7 @@ enum max77686_ramp_rate {
 };
 
 struct max77686_data {
-	struct regulator_dev **rdev;
+	struct regulator_dev *rdev[MAX77686_REGULATORS];
 };
 
 static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
@@ -265,6 +265,7 @@ static int max77686_pmic_dt_parse_pdata(struct max77686_dev *iodev,
 		rmatch.of_node = NULL;
 		of_regulator_match(iodev->dev, regulators_np, &rmatch, 1);
 		rdata[i].initdata = rmatch.init_data;
+		rdata[i].of_node = rmatch.of_node;
 	}
 
 	pdata->regulators = rdata;
@@ -283,10 +284,8 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev)
 {
 	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev);
-	struct regulator_dev **rdev;
 	struct max77686_data *max77686;
-	int i,  size;
-	int ret = 0;
+	int i, ret = 0;
 	struct regulator_config config = { };
 
 	dev_dbg(&pdev->dev, "%s\n", __func__);
@@ -313,45 +312,38 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev)
 	if (!max77686)
 		return -ENOMEM;
 
-	size = sizeof(struct regulator_dev *) * MAX77686_REGULATORS;
-	max77686->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
-	if (!max77686->rdev)
-		return -ENOMEM;
-
-	rdev = max77686->rdev;
 	config.dev = &pdev->dev;
 	config.regmap = iodev->regmap;
 	platform_set_drvdata(pdev, max77686);
 
 	for (i = 0; i < MAX77686_REGULATORS; i++) {
 		config.init_data = pdata->regulators[i].initdata;
+		config.of_node = pdata->regulators[i].of_node;
 
-		rdev[i] = regulator_register(&regulators[i], &config);
-		if (IS_ERR(rdev[i])) {
-			ret = PTR_ERR(rdev[i]);
+		max77686->rdev[i] = regulator_register(&regulators[i], &config);
+		if (IS_ERR(max77686->rdev[i])) {
+			ret = PTR_ERR(max77686->rdev[i]);
 			dev_err(&pdev->dev,
 				"regulator init failed for %d\n", i);
-				rdev[i] = NULL;
-				goto err;
+			max77686->rdev[i] = NULL;
+			goto err;
 		}
 	}
 
 	return 0;
 err:
 	while (--i >= 0)
-		regulator_unregister(rdev[i]);
+		regulator_unregister(max77686->rdev[i]);
 	return ret;
 }
 
 static int __devexit max77686_pmic_remove(struct platform_device *pdev)
 {
 	struct max77686_data *max77686 = platform_get_drvdata(pdev);
-	struct regulator_dev **rdev = max77686->rdev;
 	int i;
 
 	for (i = 0; i < MAX77686_REGULATORS; i++)
-		if (rdev[i])
-			regulator_unregister(rdev[i]);
+		regulator_unregister(max77686->rdev[i]);
 
 	return 0;
 }
diff --git a/drivers/regulator/max8907-regulator.c b/drivers/regulator/max8907-regulator.c
new file mode 100644
index 00000000000..af7607515ab
--- /dev/null
+++ b/drivers/regulator/max8907-regulator.c
@@ -0,0 +1,408 @@
+/*
+ * max8907-regulator.c -- support regulators in max8907
+ *
+ * Copyright (C) 2010 Gyungoh Yoo <jack.yoo@maxim-ic.com>
+ * Copyright (C) 2010-2012, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Portions based on drivers/regulator/tps65910-regulator.c,
+ *     Copyright 2010 Texas Instruments Inc.
+ *     Author: Graeme Gregory <gg@slimlogic.co.uk>
+ *     Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max8907.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#define MAX8907_II2RR_VERSION_MASK	0xF0
+#define MAX8907_II2RR_VERSION_REV_A	0x00
+#define MAX8907_II2RR_VERSION_REV_B	0x10
+#define MAX8907_II2RR_VERSION_REV_C	0x30
+
+struct max8907_regulator {
+	struct regulator_desc desc[MAX8907_NUM_REGULATORS];
+	struct regulator_dev *rdev[MAX8907_NUM_REGULATORS];
+};
+
+#define REG_MBATT() \
+	[MAX8907_MBATT] = { \
+		.name = "MBATT", \
+		.supply_name = "mbatt", \
+		.id = MAX8907_MBATT, \
+		.ops = &max8907_mbatt_ops, \
+		.type = REGULATOR_VOLTAGE, \
+		.owner = THIS_MODULE, \
+	}
+
+#define REG_LDO(ids, supply, base, min, max, step) \
+	[MAX8907_##ids] = { \
+		.name = #ids, \
+		.supply_name = supply, \
+		.id = MAX8907_##ids, \
+		.n_voltages = ((max) - (min)) / (step) + 1, \
+		.ops = &max8907_ldo_ops, \
+		.type = REGULATOR_VOLTAGE, \
+		.owner = THIS_MODULE, \
+		.min_uV = (min), \
+		.uV_step = (step), \
+		.vsel_reg = (base) + MAX8907_VOUT, \
+		.vsel_mask = 0x3f, \
+		.enable_reg = (base) + MAX8907_CTL, \
+		.enable_mask = MAX8907_MASK_LDO_EN, \
+	}
+
+#define REG_FIXED(ids, supply, voltage) \
+	[MAX8907_##ids] = { \
+		.name = #ids, \
+		.supply_name = supply, \
+		.id = MAX8907_##ids, \
+		.n_voltages = 1, \
+		.ops = &max8907_fixed_ops, \
+		.type = REGULATOR_VOLTAGE, \
+		.owner = THIS_MODULE, \
+		.min_uV = (voltage), \
+	}
+
+#define REG_OUT5V(ids, supply, base, voltage) \
+	[MAX8907_##ids] = { \
+		.name = #ids, \
+		.supply_name = supply, \
+		.id = MAX8907_##ids, \
+		.n_voltages = 1, \
+		.ops = &max8907_out5v_ops, \
+		.type = REGULATOR_VOLTAGE, \
+		.owner = THIS_MODULE, \
+		.min_uV = (voltage), \
+		.enable_reg = (base), \
+		.enable_mask = MAX8907_MASK_OUT5V_EN, \
+	}
+
+#define REG_BBAT(ids, supply, base, min, max, step) \
+	[MAX8907_##ids] = { \
+		.name = #ids, \
+		.supply_name = supply, \
+		.id = MAX8907_##ids, \
+		.n_voltages = ((max) - (min)) / (step) + 1, \
+		.ops = &max8907_bbat_ops, \
+		.type = REGULATOR_VOLTAGE, \
+		.owner = THIS_MODULE, \
+		.min_uV = (min), \
+		.uV_step = (step), \
+		.vsel_reg = (base), \
+		.vsel_mask = MAX8907_MASK_VBBATTCV, \
+	}
+
+#define LDO_750_50(id, supply, base) REG_LDO(id, supply, (base), \
+			750000, 3900000, 50000)
+#define LDO_650_25(id, supply, base) REG_LDO(id, supply, (base), \
+			650000, 2225000, 25000)
+
+static struct regulator_ops max8907_mbatt_ops = {
+};
+
+static struct regulator_ops max8907_ldo_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+};
+
+static struct regulator_ops max8907_ldo_hwctl_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+};
+
+static struct regulator_ops max8907_fixed_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+};
+
+static struct regulator_ops max8907_out5v_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+};
+
+static struct regulator_ops max8907_out5v_hwctl_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+};
+
+static struct regulator_ops max8907_bbat_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+};
+
+static struct regulator_desc max8907_regulators[] = {
+	REG_MBATT(),
+	REG_LDO(SD1, "in-v1", MAX8907_REG_SDCTL1, 650000, 2225000, 25000),
+	REG_LDO(SD2, "in-v2", MAX8907_REG_SDCTL2, 637500, 1425000, 12500),
+	REG_LDO(SD3, "in-v3", MAX8907_REG_SDCTL3, 750000, 3900000, 50000),
+	LDO_750_50(LDO1, "in1", MAX8907_REG_LDOCTL1),
+	LDO_650_25(LDO2, "in2", MAX8907_REG_LDOCTL2),
+	LDO_650_25(LDO3, "in3", MAX8907_REG_LDOCTL3),
+	LDO_750_50(LDO4, "in4", MAX8907_REG_LDOCTL4),
+	LDO_750_50(LDO5, "in5", MAX8907_REG_LDOCTL5),
+	LDO_750_50(LDO6, "in6", MAX8907_REG_LDOCTL6),
+	LDO_750_50(LDO7, "in7", MAX8907_REG_LDOCTL7),
+	LDO_750_50(LDO8, "in8", MAX8907_REG_LDOCTL8),
+	LDO_750_50(LDO9, "in9", MAX8907_REG_LDOCTL9),
+	LDO_750_50(LDO10, "in10", MAX8907_REG_LDOCTL10),
+	LDO_750_50(LDO11, "in11", MAX8907_REG_LDOCTL11),
+	LDO_750_50(LDO12, "in12", MAX8907_REG_LDOCTL12),
+	LDO_750_50(LDO13, "in13", MAX8907_REG_LDOCTL13),
+	LDO_750_50(LDO14, "in14", MAX8907_REG_LDOCTL14),
+	LDO_750_50(LDO15, "in15", MAX8907_REG_LDOCTL15),
+	LDO_750_50(LDO16, "in16", MAX8907_REG_LDOCTL16),
+	LDO_650_25(LDO17, "in17", MAX8907_REG_LDOCTL17),
+	LDO_650_25(LDO18, "in18", MAX8907_REG_LDOCTL18),
+	LDO_750_50(LDO19, "in19", MAX8907_REG_LDOCTL19),
+	LDO_750_50(LDO20, "in20", MAX8907_REG_LDOCTL20),
+	REG_OUT5V(OUT5V, "mbatt", MAX8907_REG_OUT5VEN, 5000000),
+	REG_OUT5V(OUT33V, "mbatt",  MAX8907_REG_OUT33VEN, 3300000),
+	REG_BBAT(BBAT, "MBATT", MAX8907_REG_BBAT_CNFG,
+						2400000, 3000000, 200000),
+	REG_FIXED(SDBY, "MBATT", 1200000),
+	REG_FIXED(VRTC, "MBATT", 3300000),
+};
+
+#ifdef CONFIG_OF
+
+#define MATCH(_name, _id) \
+	[MAX8907_##_id] = { \
+		.name = #_name, \
+		.driver_data = (void *)&max8907_regulators[MAX8907_##_id], \
+	}
+
+static struct of_regulator_match max8907_matches[] = {
+	MATCH(mbatt, MBATT),
+	MATCH(sd1, SD1),
+	MATCH(sd2, SD2),
+	MATCH(sd3, SD3),
+	MATCH(ldo1, LDO1),
+	MATCH(ldo2, LDO2),
+	MATCH(ldo3, LDO3),
+	MATCH(ldo4, LDO4),
+	MATCH(ldo5, LDO5),
+	MATCH(ldo6, LDO6),
+	MATCH(ldo7, LDO7),
+	MATCH(ldo8, LDO8),
+	MATCH(ldo9, LDO9),
+	MATCH(ldo10, LDO10),
+	MATCH(ldo11, LDO11),
+	MATCH(ldo12, LDO12),
+	MATCH(ldo13, LDO13),
+	MATCH(ldo14, LDO14),
+	MATCH(ldo15, LDO15),
+	MATCH(ldo16, LDO16),
+	MATCH(ldo17, LDO17),
+	MATCH(ldo18, LDO18),
+	MATCH(ldo19, LDO19),
+	MATCH(ldo20, LDO20),
+	MATCH(out5v, OUT5V),
+	MATCH(out33v, OUT33V),
+	MATCH(bbat, BBAT),
+	MATCH(sdby, SDBY),
+	MATCH(vrtc, VRTC),
+};
+
+static int max8907_regulator_parse_dt(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.parent->of_node;
+	struct device_node *regulators;
+	int ret;
+
+	if (!pdev->dev.parent->of_node)
+		return 0;
+
+	regulators = of_find_node_by_name(np, "regulators");
+	if (!regulators) {
+		dev_err(&pdev->dev, "regulators node not found\n");
+		return -EINVAL;
+	}
+
+	ret = of_regulator_match(pdev->dev.parent, regulators,
+				 max8907_matches,
+				 ARRAY_SIZE(max8907_matches));
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline struct regulator_init_data *match_init_data(int index)
+{
+	return max8907_matches[index].init_data;
+}
+
+static inline struct device_node *match_of_node(int index)
+{
+	return max8907_matches[index].of_node;
+}
+#else
+static int max8907_regulator_parse_dt(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static inline struct regulator_init_data *match_init_data(int index)
+{
+	return NULL;
+}
+
+static inline struct device_node *match_of_node(int index)
+{
+	return NULL;
+}
+#endif
+
+static __devinit int max8907_regulator_probe(struct platform_device *pdev)
+{
+	struct max8907 *max8907 = dev_get_drvdata(pdev->dev.parent);
+	struct max8907_platform_data *pdata = dev_get_platdata(max8907->dev);
+	int ret;
+	struct max8907_regulator *pmic;
+	unsigned int val;
+	int i;
+	struct regulator_config config = {};
+	struct regulator_init_data *idata;
+	const char *mbatt_rail_name = NULL;
+
+	ret = max8907_regulator_parse_dt(pdev);
+	if (ret)
+		return ret;
+
+	pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
+	if (!pmic) {
+		dev_err(&pdev->dev, "Failed to alloc pmic\n");
+		return -ENOMEM;
+	}
+	platform_set_drvdata(pdev, pmic);
+
+	memcpy(pmic->desc, max8907_regulators, sizeof(pmic->desc));
+
+	/* Backwards compatibility with MAX8907B; SD1 uses different voltages */
+	regmap_read(max8907->regmap_gen, MAX8907_REG_II2RR, &val);
+	if ((val & MAX8907_II2RR_VERSION_MASK) ==
+	    MAX8907_II2RR_VERSION_REV_B) {
+		pmic->desc[MAX8907_SD1].min_uV = 637500;
+		pmic->desc[MAX8907_SD1].uV_step = 12500;
+		pmic->desc[MAX8907_SD1].n_voltages =
+						(1425000 - 637500) / 12500 + 1;
+	}
+
+	for (i = 0; i < MAX8907_NUM_REGULATORS; i++) {
+		config.dev = pdev->dev.parent;
+		if (pdata)
+			idata = pdata->init_data[i];
+		else
+			idata = match_init_data(i);
+		config.init_data = idata;
+		config.driver_data = pmic;
+		config.regmap = max8907->regmap_gen;
+		config.of_node = match_of_node(i);
+
+		switch (pmic->desc[i].id) {
+		case MAX8907_MBATT:
+			if (idata && idata->constraints.name)
+				mbatt_rail_name = idata->constraints.name;
+			else
+				mbatt_rail_name = pmic->desc[i].name;
+			break;
+		case MAX8907_BBAT:
+		case MAX8907_SDBY:
+		case MAX8907_VRTC:
+			idata->supply_regulator = mbatt_rail_name;
+			break;
+		}
+
+		if (pmic->desc[i].ops == &max8907_ldo_ops) {
+			regmap_read(config.regmap, pmic->desc[i].enable_reg,
+				    &val);
+			if ((val & MAX8907_MASK_LDO_SEQ) !=
+			    MAX8907_MASK_LDO_SEQ)
+				pmic->desc[i].ops = &max8907_ldo_hwctl_ops;
+		} else if (pmic->desc[i].ops == &max8907_out5v_ops) {
+			regmap_read(config.regmap, pmic->desc[i].enable_reg,
+				    &val);
+			if ((val & (MAX8907_MASK_OUT5V_VINEN |
+						MAX8907_MASK_OUT5V_ENSRC)) !=
+			    MAX8907_MASK_OUT5V_ENSRC)
+				pmic->desc[i].ops = &max8907_out5v_hwctl_ops;
+		}
+
+		pmic->rdev[i] = regulator_register(&pmic->desc[i], &config);
+		if (IS_ERR(pmic->rdev[i])) {
+			dev_err(&pdev->dev,
+				"failed to register %s regulator\n",
+				pmic->desc[i].name);
+			ret = PTR_ERR(pmic->rdev[i]);
+			goto err_unregister_regulator;
+		}
+	}
+
+	return 0;
+
+err_unregister_regulator:
+	while (--i >= 0)
+		regulator_unregister(pmic->rdev[i]);
+	return ret;
+}
+
+static __devexit int max8907_regulator_remove(struct platform_device *pdev)
+{
+	struct max8907_regulator *pmic = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < MAX8907_NUM_REGULATORS; i++)
+		regulator_unregister(pmic->rdev[i]);
+
+	return 0;
+}
+
+static struct platform_driver max8907_regulator_driver = {
+	.driver = {
+		   .name = "max8907-regulator",
+		   .owner = THIS_MODULE,
+		   },
+	.probe = max8907_regulator_probe,
+	.remove = __devexit_p(max8907_regulator_remove),
+};
+
+static int __init max8907_regulator_init(void)
+{
+	return platform_driver_register(&max8907_regulator_driver);
+}
+
+subsys_initcall(max8907_regulator_init);
+
+static void __exit max8907_reg_exit(void)
+{
+	platform_driver_unregister(&max8907_regulator_driver);
+}
+
+module_exit(max8907_reg_exit);
+
+MODULE_DESCRIPTION("MAX8907 regulator driver");
+MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@maxim-ic.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:max8907-regulator");
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 4932e3449fe..0801a6d0c12 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -21,6 +21,30 @@
 #include <linux/module.h>
 #include "mc13xxx.h"
 
+#define MC13783_REG_SWITCHERS0			24
+/* Enable does not exist for SW1A */
+#define MC13783_REG_SWITCHERS0_SW1AEN			0
+#define MC13783_REG_SWITCHERS0_SW1AVSEL			0
+#define MC13783_REG_SWITCHERS0_SW1AVSEL_M		(63 << 0)
+
+#define MC13783_REG_SWITCHERS1			25
+/* Enable does not exist for SW1B */
+#define MC13783_REG_SWITCHERS1_SW1BEN			0
+#define MC13783_REG_SWITCHERS1_SW1BVSEL			0
+#define MC13783_REG_SWITCHERS1_SW1BVSEL_M		(63 << 0)
+
+#define MC13783_REG_SWITCHERS2			26
+/* Enable does not exist for SW2A */
+#define MC13783_REG_SWITCHERS2_SW2AEN			0
+#define MC13783_REG_SWITCHERS2_SW2AVSEL			0
+#define MC13783_REG_SWITCHERS2_SW2AVSEL_M		(63 << 0)
+
+#define MC13783_REG_SWITCHERS3			27
+/* Enable does not exist for SW2B */
+#define MC13783_REG_SWITCHERS3_SW2BEN			0
+#define MC13783_REG_SWITCHERS3_SW2BVSEL			0
+#define MC13783_REG_SWITCHERS3_SW2BVSEL_M		(63 << 0)
+
 #define MC13783_REG_SWITCHERS5			29
 #define MC13783_REG_SWITCHERS5_SW3EN			(1 << 20)
 #define MC13783_REG_SWITCHERS5_SW3VSEL			18
@@ -93,6 +117,44 @@
 
 
 /* Voltage Values */
+static const int mc13783_sw1x_val[] = {
+	900000, 925000, 950000, 975000,
+	1000000, 1025000, 1050000, 1075000,
+	1100000, 1125000, 1150000, 1175000,
+	1200000, 1225000, 1250000, 1275000,
+	1300000, 1325000, 1350000, 1375000,
+	1400000, 1425000, 1450000, 1475000,
+	1500000, 1525000, 1550000, 1575000,
+	1600000, 1625000, 1650000, 1675000,
+	1700000, 1700000, 1700000, 1700000,
+	1800000, 1800000, 1800000, 1800000,
+	1850000, 1850000, 1850000, 1850000,
+	2000000, 2000000, 2000000, 2000000,
+	2100000, 2100000, 2100000, 2100000,
+	2200000, 2200000, 2200000, 2200000,
+	2200000, 2200000, 2200000, 2200000,
+	2200000, 2200000, 2200000, 2200000,
+};
+
+static const int mc13783_sw2x_val[] = {
+	900000, 925000, 950000, 975000,
+	1000000, 1025000, 1050000, 1075000,
+	1100000, 1125000, 1150000, 1175000,
+	1200000, 1225000, 1250000, 1275000,
+	1300000, 1325000, 1350000, 1375000,
+	1400000, 1425000, 1450000, 1475000,
+	1500000, 1525000, 1550000, 1575000,
+	1600000, 1625000, 1650000, 1675000,
+	1700000, 1700000, 1700000, 1700000,
+	1800000, 1800000, 1800000, 1800000,
+	1900000, 1900000, 1900000, 1900000,
+	2000000, 2000000, 2000000, 2000000,
+	2100000, 2100000, 2100000, 2100000,
+	2200000, 2200000, 2200000, 2200000,
+	2200000, 2200000, 2200000, 2200000,
+	2200000, 2200000, 2200000, 2200000,
+};
+
 static const unsigned int mc13783_sw3_val[] = {
 	5000000, 5000000, 5000000, 5500000,
 };
@@ -188,6 +250,10 @@ static struct regulator_ops mc13783_gpo_regulator_ops;
 	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
 
 static struct mc13xxx_regulator mc13783_regulators[] = {
+	MC13783_DEFINE_SW(SW1A, SWITCHERS0, SWITCHERS0, mc13783_sw1x_val),
+	MC13783_DEFINE_SW(SW1B, SWITCHERS1, SWITCHERS1, mc13783_sw1x_val),
+	MC13783_DEFINE_SW(SW2A, SWITCHERS2, SWITCHERS2, mc13783_sw2x_val),
+	MC13783_DEFINE_SW(SW2B, SWITCHERS3, SWITCHERS3, mc13783_sw2x_val),
 	MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
 
 	MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
@@ -238,9 +304,10 @@ static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
 
 	BUG_ON(val & ~mask);
 
+	mc13xxx_lock(priv->mc13xxx);
 	ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
 	if (ret)
-		return ret;
+		goto out;
 
 	/* Update the stored state for Power Gates. */
 	priv->powermisc_pwgt_state =
@@ -253,7 +320,10 @@ static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
 	valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
 						priv->powermisc_pwgt_state;
 
-	return mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
+	ret = mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
+out:
+	mc13xxx_unlock(priv->mc13xxx);
+	return ret;
 }
 
 static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
@@ -261,7 +331,6 @@ static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
 	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
 	int id = rdev_get_id(rdev);
-	int ret;
 	u32 en_val = mc13xxx_regulators[id].enable_bit;
 
 	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
@@ -271,12 +340,8 @@ static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
 	    id == MC13783_REG_PWGT2SPI)
 		en_val = 0;
 
-	mc13xxx_lock(priv->mc13xxx);
-	ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
+	return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
 					en_val);
-	mc13xxx_unlock(priv->mc13xxx);
-
-	return ret;
 }
 
 static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
@@ -284,7 +349,6 @@ static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
 	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
 	int id = rdev_get_id(rdev);
-	int ret;
 	u32 dis_val = 0;
 
 	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
@@ -294,12 +358,8 @@ static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
 	    id == MC13783_REG_PWGT2SPI)
 		dis_val = mc13xxx_regulators[id].enable_bit;
 
-	mc13xxx_lock(priv->mc13xxx);
-	ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
+	return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
 					dis_val);
-	mc13xxx_unlock(priv->mc13xxx);
-
-	return ret;
 }
 
 static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
@@ -330,7 +390,6 @@ static struct regulator_ops mc13783_gpo_regulator_ops = {
 	.is_enabled = mc13783_gpo_regulator_is_enabled,
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
-	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
 };
 
 static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index b388b746452..1fa63812f7a 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -305,9 +305,10 @@ static int mc13892_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
 
 	BUG_ON(val & ~mask);
 
+	mc13xxx_lock(priv->mc13xxx);
 	ret = mc13xxx_reg_read(mc13892, MC13892_POWERMISC, &valread);
 	if (ret)
-		return ret;
+		goto out;
 
 	/* Update the stored state for Power Gates. */
 	priv->powermisc_pwgt_state =
@@ -320,14 +321,16 @@ static int mc13892_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
 	valread = (valread & ~MC13892_POWERMISC_PWGTSPI_M) |
 		priv->powermisc_pwgt_state;
 
-	return mc13xxx_reg_write(mc13892, MC13892_POWERMISC, valread);
+	ret = mc13xxx_reg_write(mc13892, MC13892_POWERMISC, valread);
+out:
+	mc13xxx_unlock(priv->mc13xxx);
+	return ret;
 }
 
 static int mc13892_gpo_regulator_enable(struct regulator_dev *rdev)
 {
 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
 	int id = rdev_get_id(rdev);
-	int ret;
 	u32 en_val = mc13892_regulators[id].enable_bit;
 	u32 mask = mc13892_regulators[id].enable_bit;
 
@@ -340,18 +343,13 @@ static int mc13892_gpo_regulator_enable(struct regulator_dev *rdev)
 	if (id == MC13892_GPO4)
 		mask |= MC13892_POWERMISC_GPO4ADINEN;
 
-	mc13xxx_lock(priv->mc13xxx);
-	ret = mc13892_powermisc_rmw(priv, mask, en_val);
-	mc13xxx_unlock(priv->mc13xxx);
-
-	return ret;
+	return mc13892_powermisc_rmw(priv, mask, en_val);
 }
 
 static int mc13892_gpo_regulator_disable(struct regulator_dev *rdev)
 {
 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
 	int id = rdev_get_id(rdev);
-	int ret;
 	u32 dis_val = 0;
 
 	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
@@ -360,12 +358,8 @@ static int mc13892_gpo_regulator_disable(struct regulator_dev *rdev)
 	if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI)
 		dis_val = mc13892_regulators[id].enable_bit;
 
-	mc13xxx_lock(priv->mc13xxx);
-	ret = mc13892_powermisc_rmw(priv, mc13892_regulators[id].enable_bit,
+	return mc13892_powermisc_rmw(priv, mc13892_regulators[id].enable_bit,
 		dis_val);
-	mc13xxx_unlock(priv->mc13xxx);
-
-	return ret;
 }
 
 static int mc13892_gpo_regulator_is_enabled(struct regulator_dev *rdev)
@@ -396,14 +390,13 @@ static struct regulator_ops mc13892_gpo_regulator_ops = {
 	.is_enabled = mc13892_gpo_regulator_is_enabled,
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
-	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
 };
 
-static int mc13892_sw_regulator_get_voltage(struct regulator_dev *rdev)
+static int mc13892_sw_regulator_get_voltage_sel(struct regulator_dev *rdev)
 {
 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
 	int ret, id = rdev_get_id(rdev);
-	unsigned int val, hi;
+	unsigned int val;
 
 	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
 
@@ -414,17 +407,11 @@ static int mc13892_sw_regulator_get_voltage(struct regulator_dev *rdev)
 	if (ret)
 		return ret;
 
-	hi  = val & MC13892_SWITCHERS0_SWxHI;
 	val = (val & mc13892_regulators[id].vsel_mask)
 		>> mc13892_regulators[id].vsel_shift;
 
 	dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
 
-	if (hi)
-		val = (25000 * val) + 1100000;
-	else
-		val = (25000 * val) + 600000;
-
 	return val;
 }
 
@@ -432,37 +419,25 @@ static int mc13892_sw_regulator_set_voltage_sel(struct regulator_dev *rdev,
 						unsigned selector)
 {
 	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
-	int hi, value, mask, id = rdev_get_id(rdev);
-	u32 valread;
+	int volt, mask, id = rdev_get_id(rdev);
+	u32 reg_value;
 	int ret;
 
-	value = rdev->desc->volt_table[selector];
+	volt = rdev->desc->volt_table[selector];
+	mask = mc13892_regulators[id].vsel_mask;
+	reg_value = selector << mc13892_regulators[id].vsel_shift;
+
+	if (volt > 1375000) {
+		mask |= MC13892_SWITCHERS0_SWxHI;
+		reg_value |= MC13892_SWITCHERS0_SWxHI;
+	} else if (volt < 1100000) {
+		mask |= MC13892_SWITCHERS0_SWxHI;
+		reg_value &= ~MC13892_SWITCHERS0_SWxHI;
+	}
 
 	mc13xxx_lock(priv->mc13xxx);
-	ret = mc13xxx_reg_read(priv->mc13xxx,
-		mc13892_regulators[id].vsel_reg, &valread);
-	if (ret)
-		goto err;
-
-	if (value > 1375000)
-		hi = 1;
-	else if (value < 1100000)
-		hi = 0;
-	else
-		hi = valread & MC13892_SWITCHERS0_SWxHI;
-
-	if (hi) {
-		value = (value - 1100000) / 25000;
-		value |= MC13892_SWITCHERS0_SWxHI;
-	} else
-		value = (value - 600000) / 25000;
-
-	mask = mc13892_regulators[id].vsel_mask | MC13892_SWITCHERS0_SWxHI;
-	valread = (valread & ~mask) |
-			(value << mc13892_regulators[id].vsel_shift);
-	ret = mc13xxx_reg_write(priv->mc13xxx, mc13892_regulators[id].vsel_reg,
-			valread);
-err:
+	ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13892_regulators[id].reg, mask,
+			      reg_value);
 	mc13xxx_unlock(priv->mc13xxx);
 
 	return ret;
@@ -471,7 +446,7 @@ err:
 static struct regulator_ops mc13892_sw_regulator_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage_sel = mc13892_sw_regulator_set_voltage_sel,
-	.get_voltage = mc13892_sw_regulator_get_voltage,
+	.get_voltage_sel = mc13892_sw_regulator_get_voltage_sel,
 };
 
 static int mc13892_vcam_set_mode(struct regulator_dev *rdev, unsigned int mode)
diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c
index d6eda28ca5d..88cbb832d55 100644
--- a/drivers/regulator/mc13xxx-regulator-core.c
+++ b/drivers/regulator/mc13xxx-regulator-core.c
@@ -143,30 +143,21 @@ int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
 		__func__, id, min_uV, max_uV);
 
 	if (min_uV <= rdev->desc->volt_table[0] &&
-	    rdev->desc->volt_table[0] <= max_uV)
+	    rdev->desc->volt_table[0] <= max_uV) {
+		*selector = 0;
 		return 0;
-	else
+	} else {
 		return -EINVAL;
+	}
 }
 EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_set_voltage);
 
-int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev)
-{
-	int id = rdev_get_id(rdev);
-
-	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
-
-	return rdev->desc->volt_table[0];
-}
-EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_get_voltage);
-
 struct regulator_ops mc13xxx_fixed_regulator_ops = {
 	.enable = mc13xxx_regulator_enable,
 	.disable = mc13xxx_regulator_disable,
 	.is_enabled = mc13xxx_regulator_is_enabled,
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
-	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
 };
 EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_ops);
 
diff --git a/drivers/regulator/mc13xxx.h b/drivers/regulator/mc13xxx.h
index eaff5510b6d..06c8903f182 100644
--- a/drivers/regulator/mc13xxx.h
+++ b/drivers/regulator/mc13xxx.h
@@ -34,7 +34,6 @@ struct mc13xxx_regulator_priv {
 
 extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
 		int min_uV, int max_uV, unsigned *selector);
-extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
 
 #ifdef CONFIG_OF
 extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 3e4106f2bda..6f684916fd7 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -92,16 +92,18 @@ struct regulator_init_data *of_get_regulator_init_data(struct device *dev,
 EXPORT_SYMBOL_GPL(of_get_regulator_init_data);
 
 /**
- * of_regulator_match - extract regulator init data when node
- * property "regulator-compatible" matches with the regulator name.
+ * of_regulator_match - extract multiple regulator init data from device tree.
  * @dev: device requesting the data
  * @node: parent device node of the regulators
  * @matches: match table for the regulators
  * @num_matches: number of entries in match table
  *
- * This function uses a match table specified by the regulator driver and
- * looks up the corresponding init data in the device tree  if
- * regulator-compatible matches. Note that the match table is modified
+ * This function uses a match table specified by the regulator driver to
+ * parse regulator init data from the device tree. @node is expected to
+ * contain a set of child nodes, each providing the init data for one
+ * regulator. The data parsed from a child node will be matched to a regulator
+ * based on either the deprecated property regulator-compatible if present,
+ * or otherwise the child node's name. Note that the match table is modified
  * in place.
  *
  * Returns the number of matches found or a negative error code on failure.
@@ -112,26 +114,23 @@ int of_regulator_match(struct device *dev, struct device_node *node,
 {
 	unsigned int count = 0;
 	unsigned int i;
-	const char *regulator_comp;
+	const char *name;
 	struct device_node *child;
 
 	if (!dev || !node)
 		return -EINVAL;
 
 	for_each_child_of_node(node, child) {
-		regulator_comp = of_get_property(child,
+		name = of_get_property(child,
 					"regulator-compatible", NULL);
-		if (!regulator_comp) {
-			dev_err(dev, "regulator-compatible is missing for node %s\n",
-				child->name);
-			continue;
-		}
+		if (!name)
+			name = child->name;
 		for (i = 0; i < num_matches; i++) {
 			struct of_regulator_match *match = &matches[i];
 			if (match->of_node)
 				continue;
 
-			if (strcmp(match->name, regulator_comp))
+			if (strcmp(match->name, name))
 				continue;
 
 			match->init_data =
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 17d19fbbc49..2ba7502fa3b 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -443,52 +443,17 @@ static int palmas_list_voltage_ldo(struct regulator_dev *dev,
 	return  850000 + (selector * 50000);
 }
 
-static int palmas_get_voltage_ldo_sel(struct regulator_dev *dev)
-{
-	struct palmas_pmic *pmic = rdev_get_drvdata(dev);
-	int id = rdev_get_id(dev);
-	int selector;
-	unsigned int reg;
-	unsigned int addr;
-
-	addr = palmas_regs_info[id].vsel_addr;
-
-	palmas_ldo_read(pmic->palmas, addr, &reg);
-
-	selector = reg & PALMAS_LDO1_VOLTAGE_VSEL_MASK;
-
-	/* Adjust selector to match list_voltage ranges */
-	if (selector > 49)
-		selector = 49;
-
-	return selector;
-}
-
-static int palmas_set_voltage_ldo_sel(struct regulator_dev *dev,
-		unsigned selector)
-{
-	struct palmas_pmic *pmic = rdev_get_drvdata(dev);
-	int id = rdev_get_id(dev);
-	unsigned int reg = 0;
-	unsigned int addr;
-
-	addr = palmas_regs_info[id].vsel_addr;
-
-	reg = selector;
-
-	palmas_ldo_write(pmic->palmas, addr, reg);
-
-	return 0;
-}
-
 static int palmas_map_voltage_ldo(struct regulator_dev *rdev,
 		int min_uV, int max_uV)
 {
 	int ret, voltage;
 
-	ret = ((min_uV - 900000) / 50000) + 1;
-	if (ret < 0)
-		return ret;
+	if (min_uV == 0)
+		return 0;
+
+	if (min_uV < 900000)
+		min_uV = 900000;
+	ret = DIV_ROUND_UP(min_uV - 900000, 50000) + 1;
 
 	/* Map back into a voltage to verify we're still in bounds */
 	voltage = palmas_list_voltage_ldo(rdev, ret);
@@ -502,8 +467,8 @@ static struct regulator_ops palmas_ops_ldo = {
 	.is_enabled		= palmas_is_enabled_ldo,
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
-	.get_voltage_sel	= palmas_get_voltage_ldo_sel,
-	.set_voltage_sel	= palmas_set_voltage_ldo_sel,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
 	.list_voltage		= palmas_list_voltage_ldo,
 	.map_voltage		= palmas_map_voltage_ldo,
 };
@@ -586,7 +551,7 @@ static int palmas_ldo_init(struct palmas *palmas, int id,
 
 	addr = palmas_regs_info[id].ctrl_addr;
 
-	ret = palmas_smps_read(palmas, addr, &reg);
+	ret = palmas_ldo_read(palmas, addr, &reg);
 	if (ret)
 		return ret;
 
@@ -596,7 +561,7 @@ static int palmas_ldo_init(struct palmas *palmas, int id,
 	if (reg_init->mode_sleep)
 		reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
 
-	ret = palmas_smps_write(palmas, addr, reg);
+	ret = palmas_ldo_write(palmas, addr, reg);
 	if (ret)
 		return ret;
 
@@ -630,7 +595,7 @@ static __devinit int palmas_probe(struct platform_device *pdev)
 
 	ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, &reg);
 	if (ret)
-		goto err_unregister_regulator;
+		return ret;
 
 	if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN)
 		pmic->smps123 = 1;
@@ -676,7 +641,9 @@ static __devinit int palmas_probe(struct platform_device *pdev)
 		case PALMAS_REG_SMPS10:
 			pmic->desc[id].n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
 			pmic->desc[id].ops = &palmas_ops_smps10;
-			pmic->desc[id].vsel_reg = PALMAS_SMPS10_CTRL;
+			pmic->desc[id].vsel_reg =
+					PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
+							PALMAS_SMPS10_CTRL);
 			pmic->desc[id].vsel_mask = SMPS10_VSEL;
 			pmic->desc[id].enable_reg =
 					PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
@@ -752,6 +719,9 @@ static __devinit int palmas_probe(struct platform_device *pdev)
 
 		pmic->desc[id].type = REGULATOR_VOLTAGE;
 		pmic->desc[id].owner = THIS_MODULE;
+		pmic->desc[id].vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
+						palmas_regs_info[id].vsel_addr);
+		pmic->desc[id].vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
 		pmic->desc[id].enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
 						palmas_regs_info[id].ctrl_addr);
 		pmic->desc[id].enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
@@ -778,8 +748,10 @@ static __devinit int palmas_probe(struct platform_device *pdev)
 			reg_init = pdata->reg_init[id];
 			if (reg_init) {
 				ret = palmas_ldo_init(palmas, id, reg_init);
-				if (ret)
+				if (ret) {
+					regulator_unregister(pmic->rdev[id]);
 					goto err_unregister_regulator;
+				}
 			}
 		}
 	}
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 4669dc9ac74..926f9c8f2fa 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -24,7 +24,7 @@
 #include <linux/mfd/samsung/s2mps11.h>
 
 struct s2mps11_info {
-	struct regulator_dev **rdev;
+	struct regulator_dev *rdev[S2MPS11_REGULATOR_MAX];
 
 	int ramp_delay2;
 	int ramp_delay34;
@@ -236,9 +236,8 @@ static __devinit int s2mps11_pmic_probe(struct platform_device *pdev)
 	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
 	struct regulator_config config = { };
-	struct regulator_dev **rdev;
 	struct s2mps11_info *s2mps11;
-	int i, ret, size;
+	int i, ret;
 	unsigned char ramp_enable, ramp_reg = 0;
 
 	if (!pdata) {
@@ -251,13 +250,6 @@ static __devinit int s2mps11_pmic_probe(struct platform_device *pdev)
 	if (!s2mps11)
 		return -ENOMEM;
 
-	size = sizeof(struct regulator_dev *) * S2MPS11_REGULATOR_MAX;
-	s2mps11->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
-	if (!s2mps11->rdev) {
-		return -ENOMEM;
-	}
-
-	rdev = s2mps11->rdev;
 	platform_set_drvdata(pdev, s2mps11);
 
 	s2mps11->ramp_delay2 = pdata->buck2_ramp_delay;
@@ -297,12 +289,12 @@ static __devinit int s2mps11_pmic_probe(struct platform_device *pdev)
 		config.init_data = pdata->regulators[i].initdata;
 		config.driver_data = s2mps11;
 
-		rdev[i] = regulator_register(&regulators[i], &config);
-		if (IS_ERR(rdev[i])) {
-			ret = PTR_ERR(rdev[i]);
+		s2mps11->rdev[i] = regulator_register(&regulators[i], &config);
+		if (IS_ERR(s2mps11->rdev[i])) {
+			ret = PTR_ERR(s2mps11->rdev[i]);
 			dev_err(&pdev->dev, "regulator init failed for %d\n",
 				i);
-			rdev[i] = NULL;
+			s2mps11->rdev[i] = NULL;
 			goto err;
 		}
 	}
@@ -310,8 +302,7 @@ static __devinit int s2mps11_pmic_probe(struct platform_device *pdev)
 	return 0;
 err:
 	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
-		if (rdev[i])
-			regulator_unregister(rdev[i]);
+		regulator_unregister(s2mps11->rdev[i]);
 
 	return ret;
 }
@@ -319,12 +310,10 @@ err:
 static int __devexit s2mps11_pmic_remove(struct platform_device *pdev)
 {
 	struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
-	struct regulator_dev **rdev = s2mps11->rdev;
 	int i;
 
 	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
-		if (rdev[i])
-			regulator_unregister(rdev[i]);
+		regulator_unregister(s2mps11->rdev[i]);
 
 	return 0;
 }
diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index 6caa222af77..ab00cab905b 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -22,6 +22,7 @@
 #include <linux/err.h>
 #include <linux/platform_device.h>
 
+#include <linux/regulator/of_regulator.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
 #include <linux/mfd/tps65217.h>
@@ -281,37 +282,130 @@ static const struct regulator_desc regulators[] = {
 			   NULL),
 };
 
+#ifdef CONFIG_OF
+static struct of_regulator_match reg_matches[] = {
+	{ .name = "dcdc1", .driver_data = (void *)TPS65217_DCDC_1 },
+	{ .name = "dcdc2", .driver_data = (void *)TPS65217_DCDC_2 },
+	{ .name = "dcdc3", .driver_data = (void *)TPS65217_DCDC_3 },
+	{ .name = "ldo1", .driver_data = (void *)TPS65217_LDO_1 },
+	{ .name = "ldo2", .driver_data = (void *)TPS65217_LDO_2 },
+	{ .name = "ldo3", .driver_data = (void *)TPS65217_LDO_3 },
+	{ .name = "ldo4", .driver_data = (void *)TPS65217_LDO_4 },
+};
+
+static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
+{
+	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct device_node *node = tps->dev->of_node;
+	struct tps65217_board *pdata;
+	struct device_node *regs;
+	int i, count;
+
+	regs = of_find_node_by_name(node, "regulators");
+	if (!regs)
+		return NULL;
+
+	count = of_regulator_match(pdev->dev.parent, regs,
+				reg_matches, TPS65217_NUM_REGULATOR);
+	of_node_put(regs);
+	if ((count < 0) || (count > TPS65217_NUM_REGULATOR))
+		return NULL;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
+
+	for (i = 0; i < count; i++) {
+		if (!reg_matches[i].init_data || !reg_matches[i].of_node)
+			continue;
+
+		pdata->tps65217_init_data[i] = reg_matches[i].init_data;
+		pdata->of_node[i] = reg_matches[i].of_node;
+	}
+
+	return pdata;
+}
+#else
+static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
+{
+	return NULL;
+}
+#endif
+
 static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
 {
+	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct tps65217_board *pdata = dev_get_platdata(tps->dev);
+	struct regulator_init_data *reg_data;
 	struct regulator_dev *rdev;
-	struct tps65217 *tps;
-	struct tps_info *info = &tps65217_pmic_regs[pdev->id];
 	struct regulator_config config = { };
+	int i, ret;
 
-	/* Already set by core driver */
-	tps = dev_to_tps65217(pdev->dev.parent);
-	tps->info[pdev->id] = info;
+	if (tps->dev->of_node)
+		pdata = tps65217_parse_dt(pdev);
 
-	config.dev = &pdev->dev;
-	config.of_node = pdev->dev.of_node;
-	config.init_data = pdev->dev.platform_data;
-	config.driver_data = tps;
+	if (!pdata) {
+		dev_err(&pdev->dev, "Platform data not found\n");
+		return -EINVAL;
+	}
 
-	rdev = regulator_register(&regulators[pdev->id], &config);
-	if (IS_ERR(rdev))
-		return PTR_ERR(rdev);
+	if (tps65217_chip_id(tps) != TPS65217) {
+		dev_err(&pdev->dev, "Invalid tps chip version\n");
+		return -ENODEV;
+	}
 
-	platform_set_drvdata(pdev, rdev);
+	platform_set_drvdata(pdev, tps);
 
+	for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
+
+		reg_data = pdata->tps65217_init_data[i];
+
+		/*
+		 * Regulator API handles empty constraints but not NULL
+		 * constraints
+		 */
+		if (!reg_data)
+			continue;
+
+		/* Register the regulators */
+		tps->info[i] = &tps65217_pmic_regs[i];
+
+		config.dev = tps->dev;
+		config.init_data = reg_data;
+		config.driver_data = tps;
+		config.regmap = tps->regmap;
+		if (tps->dev->of_node)
+			config.of_node = pdata->of_node[i];
+
+		rdev = regulator_register(&regulators[i], &config);
+		if (IS_ERR(rdev)) {
+			dev_err(tps->dev, "failed to register %s regulator\n",
+				pdev->name);
+			ret = PTR_ERR(rdev);
+			goto err_unregister_regulator;
+		}
+
+		/* Save regulator for cleanup */
+		tps->rdev[i] = rdev;
+	}
 	return 0;
+
+err_unregister_regulator:
+	while (--i >= 0)
+		regulator_unregister(tps->rdev[i]);
+
+	return ret;
 }
 
 static int __devexit tps65217_regulator_remove(struct platform_device *pdev)
 {
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
+	struct tps65217 *tps = platform_get_drvdata(pdev);
+	unsigned int i;
+
+	for (i = 0; i < TPS65217_NUM_REGULATOR; i++)
+		regulator_unregister(tps->rdev[i]);
 
 	platform_set_drvdata(pdev, NULL);
-	regulator_unregister(rdev);
 
 	return 0;
 }
diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 947ece933d9..058d2f2675e 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -502,15 +502,13 @@ static int set_current_limit(struct regulator_dev *rdev, int min_uA,
 	if (info->n_ilimsels == 1)
 		return -EINVAL;
 
-	for (i = 0; i < info->n_ilimsels; i++)
+	for (i = info->n_ilimsels - 1; i >= 0; i--) {
 		if (min_uA <= info->ilimsels[i] &&
 		    max_uA >= info->ilimsels[i])
-			break;
-
-	if (i >= info->n_ilimsels)
-		return -EINVAL;
+			return write_field(hw, &info->ilimsel, i);
+	}
 
-	return write_field(hw, &info->ilimsel, i);
+	return -EINVAL;
 }
 
 static int get_current_limit(struct regulator_dev *rdev)
diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index e6da90ab515..ce1e7cb8d51 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -57,9 +57,6 @@
 struct tps6586x_regulator {
 	struct regulator_desc desc;
 
-	int volt_reg;
-	int volt_shift;
-	int volt_nbits;
 	int enable_bit[2];
 	int enable_reg[2];
 
@@ -81,10 +78,10 @@ static int tps6586x_set_voltage_sel(struct regulator_dev *rdev,
 	int ret, val, rid = rdev_get_id(rdev);
 	uint8_t mask;
 
-	val = selector << ri->volt_shift;
-	mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
+	val = selector << (ffs(rdev->desc->vsel_mask) - 1);
+	mask = rdev->desc->vsel_mask;
 
-	ret = tps6586x_update(parent, ri->volt_reg, val, mask);
+	ret = tps6586x_update(parent, rdev->desc->vsel_reg, val, mask);
 	if (ret)
 		return ret;
 
@@ -100,66 +97,17 @@ static int tps6586x_set_voltage_sel(struct regulator_dev *rdev,
 	return ret;
 }
 
-static int tps6586x_get_voltage_sel(struct regulator_dev *rdev)
-{
-	struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps6586x_dev(rdev);
-	uint8_t val, mask;
-	int ret;
-
-	ret = tps6586x_read(parent, ri->volt_reg, &val);
-	if (ret)
-		return ret;
-
-	mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
-	val = (val & mask) >> ri->volt_shift;
-
-	if (val >= ri->desc.n_voltages)
-		BUG();
-
-	return val;
-}
-
-static int tps6586x_regulator_enable(struct regulator_dev *rdev)
-{
-	struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps6586x_dev(rdev);
-
-	return tps6586x_set_bits(parent, ri->enable_reg[0],
-				 1 << ri->enable_bit[0]);
-}
-
-static int tps6586x_regulator_disable(struct regulator_dev *rdev)
-{
-	struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps6586x_dev(rdev);
-
-	return tps6586x_clr_bits(parent, ri->enable_reg[0],
-				 1 << ri->enable_bit[0]);
-}
-
-static int tps6586x_regulator_is_enabled(struct regulator_dev *rdev)
-{
-	struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps6586x_dev(rdev);
-	uint8_t reg_val;
-	int ret;
-
-	ret = tps6586x_read(parent, ri->enable_reg[0], &reg_val);
-	if (ret)
-		return ret;
-
-	return !!(reg_val & (1 << ri->enable_bit[0]));
-}
-
 static struct regulator_ops tps6586x_regulator_ops = {
 	.list_voltage = regulator_list_voltage_table,
-	.get_voltage_sel = tps6586x_get_voltage_sel,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.set_voltage_sel = tps6586x_set_voltage_sel,
 
-	.is_enabled = tps6586x_regulator_is_enabled,
-	.enable = tps6586x_regulator_enable,
-	.disable = tps6586x_regulator_disable,
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+};
+
+static struct regulator_ops tps6586x_sys_regulator_ops = {
 };
 
 static const unsigned int tps6586x_ldo0_voltages[] = {
@@ -202,10 +150,11 @@ static const unsigned int tps6586x_dvm_voltages[] = {
 		.n_voltages = ARRAY_SIZE(tps6586x_##vdata##_voltages),	\
 		.volt_table = tps6586x_##vdata##_voltages,		\
 		.owner	= THIS_MODULE,					\
+		.enable_reg = TPS6586X_SUPPLY##ereg0,			\
+		.enable_mask = 1 << (ebit0),				\
+		.vsel_reg = TPS6586X_##vreg,				\
+		.vsel_mask = ((1 << (nbits)) - 1) << (shift),		\
 	},								\
-	.volt_reg	= TPS6586X_##vreg,				\
-	.volt_shift	= (shift),					\
-	.volt_nbits	= (nbits),					\
 	.enable_reg[0]	= TPS6586X_SUPPLY##ereg0,			\
 	.enable_bit[0]	= (ebit0),					\
 	.enable_reg[1]	= TPS6586X_SUPPLY##ereg1,			\
@@ -230,24 +179,39 @@ static const unsigned int tps6586x_dvm_voltages[] = {
 	TPS6586X_REGULATOR_DVM_GOREG(goreg, gobit)			\
 }
 
+#define TPS6586X_SYS_REGULATOR()					\
+{									\
+	.desc	= {							\
+		.supply_name = "sys",					\
+		.name	= "REG-SYS",					\
+		.ops	= &tps6586x_sys_regulator_ops,			\
+		.type	= REGULATOR_VOLTAGE,				\
+		.id	= TPS6586X_ID_SYS,				\
+		.owner	= THIS_MODULE,					\
+	},								\
+}
+
 static struct tps6586x_regulator tps6586x_regulator[] = {
+	TPS6586X_SYS_REGULATOR(),
 	TPS6586X_LDO(LDO_0, "vinldo01", ldo0, SUPPLYV1, 5, 3, ENC, 0, END, 0),
 	TPS6586X_LDO(LDO_3, "vinldo23", ldo, SUPPLYV4, 0, 3, ENC, 2, END, 2),
-	TPS6586X_LDO(LDO_5, NULL, ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6),
+	TPS6586X_LDO(LDO_5, "REG-SYS", ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6),
 	TPS6586X_LDO(LDO_6, "vinldo678", ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4),
 	TPS6586X_LDO(LDO_7, "vinldo678", ldo, SUPPLYV3, 3, 3, ENC, 5, END, 5),
 	TPS6586X_LDO(LDO_8, "vinldo678", ldo, SUPPLYV2, 5, 3, ENC, 6, END, 6),
 	TPS6586X_LDO(LDO_9, "vinldo9", ldo, SUPPLYV6, 3, 3, ENE, 7, ENE, 7),
-	TPS6586X_LDO(LDO_RTC, NULL, ldo, SUPPLYV4, 3, 3, V4, 7, V4, 7),
+	TPS6586X_LDO(LDO_RTC, "REG-SYS", ldo, SUPPLYV4, 3, 3, V4, 7, V4, 7),
 	TPS6586X_LDO(LDO_1, "vinldo01", dvm, SUPPLYV1, 0, 5, ENC, 1, END, 1),
-	TPS6586X_LDO(SM_2, "sm2", sm2, SUPPLYV2, 0, 5, ENC, 7, END, 7),
+	TPS6586X_LDO(SM_2, "vin-sm2", sm2, SUPPLYV2, 0, 5, ENC, 7, END, 7),
 
 	TPS6586X_DVM(LDO_2, "vinldo23", dvm, LDO2BV1, 0, 5, ENA, 3,
 					ENB, 3, VCC2, 6),
 	TPS6586X_DVM(LDO_4, "vinldo4", ldo4, LDO4V1, 0, 5, ENC, 3,
 					END, 3, VCC1, 6),
-	TPS6586X_DVM(SM_0, "sm0", dvm, SM0V1, 0, 5, ENA, 1, ENB, 1, VCC1, 2),
-	TPS6586X_DVM(SM_1, "sm1", dvm, SM1V1, 0, 5, ENA, 0, ENB, 0, VCC1, 0),
+	TPS6586X_DVM(SM_0, "vin-sm0", dvm, SM0V1, 0, 5, ENA, 1,
+					ENB, 1, VCC1, 2),
+	TPS6586X_DVM(SM_1, "vin-sm1", dvm, SM1V1, 0, 5, ENA, 0,
+					ENB, 0, VCC1, 0),
 };
 
 /*
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 242fe90dc56..7eb986a4074 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -10,6 +10,8 @@
  */
 
 #include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
@@ -624,18 +626,9 @@ static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
 	return info->min_mV * 1000;
 }
 
-static int twlfixed_get_voltage(struct regulator_dev *rdev)
-{
-	struct twlreg_info	*info = rdev_get_drvdata(rdev);
-
-	return info->min_mV * 1000;
-}
-
 static struct regulator_ops twl4030fixed_ops = {
 	.list_voltage	= twlfixed_list_voltage,
 
-	.get_voltage	= twlfixed_get_voltage,
-
 	.enable		= twl4030reg_enable,
 	.disable	= twl4030reg_disable,
 	.is_enabled	= twl4030reg_is_enabled,
@@ -648,8 +641,6 @@ static struct regulator_ops twl4030fixed_ops = {
 static struct regulator_ops twl6030fixed_ops = {
 	.list_voltage	= twlfixed_list_voltage,
 
-	.get_voltage	= twlfixed_get_voltage,
-
 	.enable		= twl6030reg_enable,
 	.disable	= twl6030reg_disable,
 	.is_enabled	= twl6030reg_is_enabled,
@@ -659,13 +650,6 @@ static struct regulator_ops twl6030fixed_ops = {
 	.get_status	= twl6030reg_get_status,
 };
 
-static struct regulator_ops twl6030_fixed_resource = {
-	.enable		= twl6030reg_enable,
-	.disable	= twl6030reg_disable,
-	.is_enabled	= twl6030reg_is_enabled,
-	.get_status	= twl6030reg_get_status,
-};
-
 /*
  * SMPS status and control
  */
@@ -757,37 +741,32 @@ static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
 	return voltage;
 }
 
-static int
-twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
-			unsigned int *selector)
+static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV,
+				   int max_uV)
 {
-	struct twlreg_info	*info = rdev_get_drvdata(rdev);
-	int	vsel = 0;
+	struct twlreg_info *info = rdev_get_drvdata(rdev);
+	int vsel = 0;
 
 	switch (info->flags) {
 	case 0:
 		if (min_uV == 0)
 			vsel = 0;
 		else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
-			int calc_uV;
 			vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
 			vsel++;
-			calc_uV = twl6030smps_list_voltage(rdev, vsel);
-			if (calc_uV > max_uV)
-				return -EINVAL;
 		}
 		/* Values 1..57 for vsel are linear and can be calculated
 		 * values 58..62 are non linear.
 		 */
-		else if ((min_uV > 1900000) && (max_uV >= 2100000))
+		else if ((min_uV > 1900000) && (min_uV <= 2100000))
 			vsel = 62;
-		else if ((min_uV > 1800000) && (max_uV >= 1900000))
+		else if ((min_uV > 1800000) && (min_uV <= 1900000))
 			vsel = 61;
-		else if ((min_uV > 1500000) && (max_uV >= 1800000))
+		else if ((min_uV > 1500000) && (min_uV <= 1800000))
 			vsel = 60;
-		else if ((min_uV > 1350000) && (max_uV >= 1500000))
+		else if ((min_uV > 1350000) && (min_uV <= 1500000))
 			vsel = 59;
-		else if ((min_uV > 1300000) && (max_uV >= 1350000))
+		else if ((min_uV > 1300000) && (min_uV <= 1350000))
 			vsel = 58;
 		else
 			return -EINVAL;
@@ -796,25 +775,21 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
 		if (min_uV == 0)
 			vsel = 0;
 		else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
-			int calc_uV;
 			vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
 			vsel++;
-			calc_uV = twl6030smps_list_voltage(rdev, vsel);
-			if (calc_uV > max_uV)
-				return -EINVAL;
 		}
 		/* Values 1..57 for vsel are linear and can be calculated
 		 * values 58..62 are non linear.
 		 */
-		else if ((min_uV > 1900000) && (max_uV >= 2100000))
+		else if ((min_uV > 1900000) && (min_uV <= 2100000))
 			vsel = 62;
-		else if ((min_uV > 1800000) && (max_uV >= 1900000))
+		else if ((min_uV > 1800000) && (min_uV <= 1900000))
 			vsel = 61;
-		else if ((min_uV > 1350000) && (max_uV >= 1800000))
+		else if ((min_uV > 1350000) && (min_uV <= 1800000))
 			vsel = 60;
-		else if ((min_uV > 1350000) && (max_uV >= 1500000))
+		else if ((min_uV > 1350000) && (min_uV <= 1500000))
 			vsel = 59;
-		else if ((min_uV > 1300000) && (max_uV >= 1350000))
+		else if ((min_uV > 1300000) && (min_uV <= 1350000))
 			vsel = 58;
 		else
 			return -EINVAL;
@@ -830,17 +805,23 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
 	case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
 		if (min_uV == 0) {
 			vsel = 0;
-		} else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
+		} else if ((min_uV >= 2161000) && (min_uV <= 4321000)) {
 			vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
 			vsel++;
 		}
 		break;
 	}
 
-	*selector = vsel;
+	return vsel;
+}
+
+static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev,
+				       unsigned int selector)
+{
+	struct twlreg_info *info = rdev_get_drvdata(rdev);
 
 	return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
-							vsel);
+			    selector);
 }
 
 static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
@@ -852,8 +833,9 @@ static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
 
 static struct regulator_ops twlsmps_ops = {
 	.list_voltage		= twl6030smps_list_voltage,
+	.map_voltage		= twl6030smps_map_voltage,
 
-	.set_voltage		= twl6030smps_set_voltage,
+	.set_voltage_sel	= twl6030smps_set_voltage_sel,
 	.get_voltage_sel	= twl6030smps_get_voltage_sel,
 
 	.enable			= twl6030reg_enable,
@@ -876,7 +858,7 @@ static struct regulator_ops twlsmps_ops = {
 			0x0, TWL6030, twl6030fixed_ops)
 
 #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
-static struct twlreg_info TWL4030_INFO_##label = { \
+static const struct twlreg_info TWL4030_INFO_##label = { \
 	.base = offset, \
 	.id = num, \
 	.table_len = ARRAY_SIZE(label##_VSEL_table), \
@@ -894,7 +876,7 @@ static struct twlreg_info TWL4030_INFO_##label = { \
 	}
 
 #define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
-static struct twlreg_info TWL4030_INFO_##label = { \
+static const struct twlreg_info TWL4030_INFO_##label = { \
 	.base = offset, \
 	.id = num, \
 	.remap = remap_conf, \
@@ -909,7 +891,7 @@ static struct twlreg_info TWL4030_INFO_##label = { \
 	}
 
 #define TWL6030_ADJUSTABLE_SMPS(label) \
-static struct twlreg_info TWL6030_INFO_##label = { \
+static const struct twlreg_info TWL6030_INFO_##label = { \
 	.desc = { \
 		.name = #label, \
 		.id = TWL6030_REG_##label, \
@@ -920,7 +902,7 @@ static struct twlreg_info TWL6030_INFO_##label = { \
 	}
 
 #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
-static struct twlreg_info TWL6030_INFO_##label = { \
+static const struct twlreg_info TWL6030_INFO_##label = { \
 	.base = offset, \
 	.min_mV = min_mVolts, \
 	.max_mV = max_mVolts, \
@@ -935,7 +917,7 @@ static struct twlreg_info TWL6030_INFO_##label = { \
 	}
 
 #define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
-static struct twlreg_info TWL6025_INFO_##label = { \
+static const struct twlreg_info TWL6025_INFO_##label = { \
 	.base = offset, \
 	.min_mV = min_mVolts, \
 	.max_mV = max_mVolts, \
@@ -951,7 +933,7 @@ static struct twlreg_info TWL6025_INFO_##label = { \
 
 #define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
 		family, operations) \
-static struct twlreg_info TWLFIXED_INFO_##label = { \
+static const struct twlreg_info TWLFIXED_INFO_##label = { \
 	.base = offset, \
 	.id = num, \
 	.min_mV = mVolts, \
@@ -981,7 +963,7 @@ static struct twlreg_info TWLRES_INFO_##label = { \
 	}
 
 #define TWL6025_ADJUSTABLE_SMPS(label, offset) \
-static struct twlreg_info TWLSMPS_INFO_##label = { \
+static const struct twlreg_info TWLSMPS_INFO_##label = { \
 	.base = offset, \
 	.min_mV = 600, \
 	.max_mV = 2100, \
@@ -1037,7 +1019,7 @@ TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
 TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
 TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
 TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
-TWL4030_FIXED_LDO(VINTANA2, 0x3f, 1500, 11, 100, 0x08);
+TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08);
 TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
 TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
 TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
@@ -1048,7 +1030,6 @@ TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
 TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
 TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
 TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
-TWL6030_FIXED_RESOURCE(CLK32KG, 0x8C, 0);
 TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
 TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
 TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
@@ -1117,7 +1098,7 @@ static const struct of_device_id twl_of_match[] __devinitconst = {
 	TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
 	TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
 	TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
-	TWLFIXED_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
+	TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
 	TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
 	TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
 	TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
@@ -1139,6 +1120,7 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
 {
 	int				i, id;
 	struct twlreg_info		*info;
+	const struct twlreg_info	*template;
 	struct regulator_init_data	*initdata;
 	struct regulation_constraints	*c;
 	struct regulator_dev		*rdev;
@@ -1148,17 +1130,17 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
 
 	match = of_match_device(twl_of_match, &pdev->dev);
 	if (match) {
-		info = match->data;
-		id = info->desc.id;
+		template = match->data;
+		id = template->desc.id;
 		initdata = of_get_regulator_init_data(&pdev->dev,
 						      pdev->dev.of_node);
 		drvdata = NULL;
 	} else {
 		id = pdev->id;
 		initdata = pdev->dev.platform_data;
-		for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
-			info = twl_of_match[i].data;
-			if (info && info->desc.id == id)
+		for (i = 0, template = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
+			template = twl_of_match[i].data;
+			if (template && template->desc.id == id)
 				break;
 		}
 		if (i == ARRAY_SIZE(twl_of_match))
@@ -1169,12 +1151,16 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
 			return -EINVAL;
 	}
 
-	if (!info)
+	if (!template)
 		return -ENODEV;
 
 	if (!initdata)
 		return -EINVAL;
 
+	info = kmemdup(template, sizeof (*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
 	if (drvdata) {
 		/* copy the driver data into regulator data */
 		info->features = drvdata->features;
@@ -1235,6 +1221,7 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "can't register %s, %ld\n",
 				info->desc.name, PTR_ERR(rdev));
+		kfree(info);
 		return PTR_ERR(rdev);
 	}
 	platform_set_drvdata(pdev, rdev);
@@ -1256,7 +1243,11 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
 
 static int __devexit twlreg_remove(struct platform_device *pdev)
 {
-	regulator_unregister(platform_get_drvdata(pdev));
+	struct regulator_dev *rdev = platform_get_drvdata(pdev);
+	struct twlreg_info *info = rdev->reg_data;
+
+	regulator_unregister(rdev);
+	kfree(info);
 	return 0;
 }
 
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 7413885be01..90cbcc68370 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -339,16 +339,15 @@ static int wm831x_buckv_set_current_limit(struct regulator_dev *rdev,
 	u16 reg = dcdc->base + WM831X_DCDC_CONTROL_2;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(wm831x_dcdc_ilim); i++) {
+	for (i = ARRAY_SIZE(wm831x_dcdc_ilim) - 1; i >= 0; i--) {
 		if ((min_uA <= wm831x_dcdc_ilim[i]) &&
 		    (wm831x_dcdc_ilim[i] <= max_uA))
-			break;
+			return wm831x_set_bits(wm831x, reg,
+					       WM831X_DC1_HC_THR_MASK,
+						i << WM831X_DC1_HC_THR_SHIFT);
 	}
-	if (i == ARRAY_SIZE(wm831x_dcdc_ilim))
-		return -EINVAL;
 
-	return wm831x_set_bits(wm831x, reg, WM831X_DC1_HC_THR_MASK,
-			       i << WM831X_DC1_HC_THR_SHIFT);
+	return -EINVAL;
 }
 
 static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev)
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 5cb70ca1e98..9af512672be 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -205,6 +205,8 @@ static int wm831x_gp_ldo_get_status(struct regulator_dev *rdev)
 
 	/* Is it reporting under voltage? */
 	ret = wm831x_reg_read(wm831x, WM831X_LDO_UV_STATUS);
+	if (ret < 0)
+		return ret;
 	if (ret & mask)
 		return REGULATOR_STATUS_ERROR;
 
@@ -237,6 +239,8 @@ static struct regulator_ops wm831x_gp_ldo_ops = {
 	.set_mode = wm831x_gp_ldo_set_mode,
 	.get_status = wm831x_gp_ldo_get_status,
 	.get_optimum_mode = wm831x_gp_ldo_get_optimum_mode,
+	.get_bypass = regulator_get_bypass_regmap,
+	.set_bypass = regulator_set_bypass_regmap,
 
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
@@ -293,6 +297,8 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	ldo->desc.vsel_mask = WM831X_LDO1_ON_VSEL_MASK;
 	ldo->desc.enable_reg = WM831X_LDO_ENABLE;
 	ldo->desc.enable_mask = 1 << id;
+	ldo->desc.bypass_reg = ldo->base;
+	ldo->desc.bypass_mask = WM831X_LDO1_SWI;
 
 	config.dev = pdev->dev.parent;
 	if (pdata)
@@ -469,6 +475,8 @@ static int wm831x_aldo_get_status(struct regulator_dev *rdev)
 
 	/* Is it reporting under voltage? */
 	ret = wm831x_reg_read(wm831x, WM831X_LDO_UV_STATUS);
+	if (ret < 0)
+		return ret;
 	if (ret & mask)
 		return REGULATOR_STATUS_ERROR;
 
@@ -488,6 +496,8 @@ static struct regulator_ops wm831x_aldo_ops = {
 	.get_mode = wm831x_aldo_get_mode,
 	.set_mode = wm831x_aldo_set_mode,
 	.get_status = wm831x_aldo_get_status,
+	.set_bypass = regulator_set_bypass_regmap,
+	.get_bypass = regulator_get_bypass_regmap,
 
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
@@ -544,6 +554,8 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 	ldo->desc.vsel_mask = WM831X_LDO7_ON_VSEL_MASK;
 	ldo->desc.enable_reg = WM831X_LDO_ENABLE;
 	ldo->desc.enable_mask = 1 << id;
+	ldo->desc.bypass_reg = ldo->base;
+	ldo->desc.bypass_mask = WM831X_LDO7_SWI;
 
 	config.dev = pdev->dev.parent;
 	if (pdata)
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 9035dd05361..27c746ef063 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -120,13 +120,8 @@ static int wm8400_dcdc_set_mode(struct regulator_dev *dev, unsigned int mode)
 
 	case REGULATOR_MODE_IDLE:
 		/* Datasheet: standby */
-		ret = wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
-				      WM8400_DC1_ACTIVE, 0);
-		if (ret != 0)
-			return ret;
 		return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
-				       WM8400_DC1_SLEEP, 0);
-
+				       WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP, 0);
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c
index a1f7ac1f8cf..b54504ee61f 100644
--- a/drivers/remoteproc/omap_remoteproc.c
+++ b/drivers/remoteproc/omap_remoteproc.c
@@ -29,7 +29,7 @@
 #include <linux/remoteproc.h>
 
 #include <plat/mailbox.h>
-#include <plat/remoteproc.h>
+#include <linux/platform_data/remoteproc-omap.h>
 
 #include "omap_remoteproc.h"
 #include "remoteproc_internal.h"
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 590cfafc7c1..1859f71372e 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -1008,8 +1008,8 @@ static int rpmsg_probe(struct virtio_device *vdev)
 	return 0;
 
 free_coherent:
-	dma_free_coherent(vdev->dev.parent, RPMSG_TOTAL_BUF_SPACE, bufs_va,
-					vrp->bufs_dma);
+	dma_free_coherent(vdev->dev.parent->parent, RPMSG_TOTAL_BUF_SPACE,
+					bufs_va, vrp->bufs_dma);
 vqs_del:
 	vdev->config->del_vqs(vrp->vdev);
 free_vrp:
@@ -1043,7 +1043,7 @@ static void __devexit rpmsg_remove(struct virtio_device *vdev)
 
 	vdev->config->del_vqs(vrp->vdev);
 
-	dma_free_coherent(vdev->dev.parent, RPMSG_TOTAL_BUF_SPACE,
+	dma_free_coherent(vdev->dev.parent->parent, RPMSG_TOTAL_BUF_SPACE,
 					vrp->rbufs, vrp->bufs_dma);
 
 	kfree(vrp);
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index eb415bd7649..9592b936b71 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -582,6 +582,7 @@ enum hrtimer_restart rtc_pie_update_irq(struct hrtimer *timer)
 void rtc_update_irq(struct rtc_device *rtc,
 		unsigned long num, unsigned long events)
 {
+	pm_stay_awake(rtc->dev.parent);
 	schedule_work(&rtc->irqwork);
 }
 EXPORT_SYMBOL_GPL(rtc_update_irq);
@@ -844,6 +845,7 @@ void rtc_timer_do_work(struct work_struct *work)
 
 	mutex_lock(&rtc->ops_lock);
 again:
+	pm_relax(rtc->dev.parent);
 	__rtc_read_time(rtc, &tm);
 	now = rtc_tm_to_ktime(tm);
 	while ((next = timerqueue_getnext(&rtc->timerqueue))) {
diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c
index bf3c2f669c3..2e5970fe9ee 100644
--- a/drivers/rtc/rtc-ab8500.c
+++ b/drivers/rtc/rtc-ab8500.c
@@ -462,16 +462,10 @@ static int __devexit ab8500_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id ab8500_rtc_match[] = {
-	{ .compatible = "stericsson,ab8500-rtc", },
-	{}
-};
-
 static struct platform_driver ab8500_rtc_driver = {
 	.driver = {
 		.name = "ab8500-rtc",
 		.owner = THIS_MODULE,
-		.of_match_table = ab8500_rtc_match,
 	},
 	.probe	= ab8500_rtc_probe,
 	.remove = __devexit_p(ab8500_rtc_remove),
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 831868904e0..1dd61f402b0 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -58,6 +58,7 @@ struct sam9_rtc {
 	struct rtc_device	*rtcdev;
 	u32			imr;
 	void __iomem		*gpbr;
+	int 			irq;
 };
 
 #define rtt_readl(rtc, field) \
@@ -292,7 +293,7 @@ static int __devinit at91_rtc_probe(struct platform_device *pdev)
 {
 	struct resource	*r, *r_gpbr;
 	struct sam9_rtc	*rtc;
-	int		ret;
+	int		ret, irq;
 	u32		mr;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -302,10 +303,18 @@ static int __devinit at91_rtc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "failed to get interrupt resource\n");
+		return irq;
+	}
+
 	rtc = kzalloc(sizeof *rtc, GFP_KERNEL);
 	if (!rtc)
 		return -ENOMEM;
 
+	rtc->irq = irq;
+
 	/* platform setup code should have handled this; sigh */
 	if (!device_can_wakeup(&pdev->dev))
 		device_init_wakeup(&pdev->dev, 1);
@@ -345,11 +354,10 @@ static int __devinit at91_rtc_probe(struct platform_device *pdev)
 	}
 
 	/* register irq handler after we know what name we'll use */
-	ret = request_irq(AT91_ID_SYS, at91_rtc_interrupt,
-				IRQF_SHARED,
+	ret = request_irq(rtc->irq, at91_rtc_interrupt, IRQF_SHARED,
 				dev_name(&rtc->rtcdev->dev), rtc);
 	if (ret) {
-		dev_dbg(&pdev->dev, "can't share IRQ %d?\n", AT91_ID_SYS);
+		dev_dbg(&pdev->dev, "can't share IRQ %d?\n", rtc->irq);
 		rtc_device_unregister(rtc->rtcdev);
 		goto fail_register;
 	}
@@ -386,7 +394,7 @@ static int __devexit at91_rtc_remove(struct platform_device *pdev)
 
 	/* disable all interrupts */
 	rtt_writel(rtc, MR, mr & ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN));
-	free_irq(AT91_ID_SYS, rtc);
+	free_irq(rtc->irq, rtc);
 
 	rtc_device_unregister(rtc->rtcdev);
 
@@ -423,7 +431,7 @@ static int at91_rtc_suspend(struct platform_device *pdev,
 	rtc->imr = mr & (AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN);
 	if (rtc->imr) {
 		if (device_may_wakeup(&pdev->dev) && (mr & AT91_RTT_ALMIEN)) {
-			enable_irq_wake(AT91_ID_SYS);
+			enable_irq_wake(rtc->irq);
 			/* don't let RTTINC cause wakeups */
 			if (mr & AT91_RTT_RTTINCIEN)
 				rtt_writel(rtc, MR, mr & ~AT91_RTT_RTTINCIEN);
@@ -441,7 +449,7 @@ static int at91_rtc_resume(struct platform_device *pdev)
 
 	if (rtc->imr) {
 		if (device_may_wakeup(&pdev->dev))
-			disable_irq_wake(AT91_ID_SYS);
+			disable_irq_wake(rtc->irq);
 		mr = rtt_readl(rtc, MR);
 		rtt_writel(rtc, MR, mr | rtc->imr);
 	}
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 132333d7540..4267789ca99 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -568,7 +568,6 @@ static irqreturn_t cmos_interrupt(int irq, void *p)
 		hpet_mask_rtc_irq_bit(RTC_AIE);
 
 		CMOS_READ(RTC_INTR_FLAGS);
-		pm_wakeup_event(cmos_rtc.dev, 0);
 	}
 	spin_unlock(&rtc_lock);
 
diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index 836118795c0..13e4df63974 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -43,6 +43,7 @@
 #include <linux/rtc.h>
 #include <linux/spi/spi.h>
 #include <linux/module.h>
+#include <linux/sysfs.h>
 
 #define DRV_VERSION "0.6"
 
@@ -292,6 +293,7 @@ static int __devinit pcf2123_probe(struct spi_device *spi)
 	pdata->rtc = rtc;
 
 	for (i = 0; i < 16; i++) {
+		sysfs_attr_init(&pdata->regs[i].attr.attr);
 		sprintf(pdata->regs[i].name, "%1x", i);
 		pdata->regs[i].attr.attr.mode = S_IRUGO | S_IWUSR;
 		pdata->regs[i].attr.attr.name = pdata->regs[i].name;
diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index 0075c8fd93d..f771b2ee4b1 100644
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -27,6 +27,8 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <mach/hardware.h>
 
@@ -396,6 +398,14 @@ static int __exit pxa_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id pxa_rtc_dt_ids[] = {
+	{ .compatible = "marvell,pxa-rtc" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, pxa_rtc_dt_ids);
+#endif
+
 #ifdef CONFIG_PM
 static int pxa_rtc_suspend(struct device *dev)
 {
@@ -425,6 +435,7 @@ static struct platform_driver pxa_rtc_driver = {
 	.remove		= __exit_p(pxa_rtc_remove),
 	.driver		= {
 		.name	= "pxa-rtc",
+		.of_match_table = of_match_ptr(pxa_rtc_dt_ids),
 #ifdef CONFIG_PM
 		.pm	= &pxa_rtc_pm_ops,
 #endif
diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c
index 77074ccd285..fd5c7af04ae 100644
--- a/drivers/rtc/rtc-rs5c348.c
+++ b/drivers/rtc/rtc-rs5c348.c
@@ -122,9 +122,12 @@ rs5c348_rtc_read_time(struct device *dev, struct rtc_time *tm)
 	tm->tm_min = bcd2bin(rxbuf[RS5C348_REG_MINS] & RS5C348_MINS_MASK);
 	tm->tm_hour = bcd2bin(rxbuf[RS5C348_REG_HOURS] & RS5C348_HOURS_MASK);
 	if (!pdata->rtc_24h) {
-		tm->tm_hour %= 12;
-		if (rxbuf[RS5C348_REG_HOURS] & RS5C348_BIT_PM)
+		if (rxbuf[RS5C348_REG_HOURS] & RS5C348_BIT_PM) {
+			tm->tm_hour -= 20;
+			tm->tm_hour %= 12;
 			tm->tm_hour += 12;
+		} else
+			tm->tm_hour %= 12;
 	}
 	tm->tm_wday = bcd2bin(rxbuf[RS5C348_REG_WDAY] & RS5C348_WDAY_MASK);
 	tm->tm_mday = bcd2bin(rxbuf[RS5C348_REG_DAY] & RS5C348_DAY_MASK);
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index c5d06fe83bb..9277d945bf4 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -495,6 +495,11 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto out1;
 
+	/* ensure interrupts are disabled, bootloaders can be strange */
+	ret = twl_rtc_write_u8(0, REG_RTC_INTERRUPTS_REG);
+	if (ret < 0)
+		dev_warn(&pdev->dev, "unable to disable interrupt\n");
+
 	/* init cached IRQ enable bits */
 	ret = twl_rtc_read_u8(&rtc_irq_bits, REG_RTC_INTERRUPTS_REG);
 	if (ret < 0)
diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index 9e94fb147c2..07bf19364a7 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -23,6 +23,7 @@
 #include <linux/bcd.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 /*
  * Register definitions
@@ -302,12 +303,18 @@ static int __devexit vt8500_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id wmt_dt_ids[] = {
+	{ .compatible = "via,vt8500-rtc", },
+	{}
+};
+
 static struct platform_driver vt8500_rtc_driver = {
 	.probe		= vt8500_rtc_probe,
 	.remove		= __devexit_p(vt8500_rtc_remove),
 	.driver		= {
 		.name	= "vt8500-rtc",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(wmt_dt_ids),
 	},
 };
 
@@ -315,5 +322,5 @@ module_platform_driver(vt8500_rtc_driver);
 
 MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>");
 MODULE_DESCRIPTION("VIA VT8500 SoC Realtime Clock Driver (RTC)");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:vt8500-rtc");
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
index 8e477bb1f3f..4a3b6232618 100644
--- a/drivers/s390/block/Kconfig
+++ b/drivers/s390/block/Kconfig
@@ -70,3 +70,21 @@ config DASD_EER
 	  This driver provides a character device interface to the
 	  DASD extended error reporting. This is only needed if you want to
 	  use applications written for the EER facility.
+
+config SCM_BLOCK
+	def_tristate m
+	prompt "Support for Storage Class Memory"
+	depends on S390 && BLOCK && EADM_SCH && SCM_BUS
+	help
+	  Block device driver for Storage Class Memory (SCM). This driver
+	  provides a block device interface for each available SCM increment.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called scm_block.
+
+config SCM_BLOCK_CLUSTER_WRITE
+	def_bool y
+	prompt "SCM force cluster writes"
+	depends on SCM_BLOCK
+	help
+	  Force writes to Storage Class Memory (SCM) to be in done in clusters.
diff --git a/drivers/s390/block/Makefile b/drivers/s390/block/Makefile
index 0a89e080b38..c2f4e673e03 100644
--- a/drivers/s390/block/Makefile
+++ b/drivers/s390/block/Makefile
@@ -17,3 +17,9 @@ obj-$(CONFIG_DASD_ECKD) += dasd_eckd_mod.o
 obj-$(CONFIG_DASD_FBA)  += dasd_fba_mod.o
 obj-$(CONFIG_BLK_DEV_XPRAM) += xpram.o
 obj-$(CONFIG_DCSSBLK) += dcssblk.o
+
+scm_block-objs := scm_drv.o scm_blk.o
+ifdef CONFIG_SCM_BLOCK_CLUSTER_WRITE
+scm_block-objs += scm_blk_cluster.o
+endif
+obj-$(CONFIG_SCM_BLOCK) += scm_block.o
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 15370a2c5ff..0595c763daf 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -534,11 +534,11 @@ static void dasd_change_state(struct dasd_device *device)
 	if (rc)
 		device->target = device->state;
 
-	if (device->state == device->target)
-		wake_up(&dasd_init_waitq);
-
 	/* let user-space know that the device status changed */
 	kobject_uevent(&device->cdev->dev.kobj, KOBJ_CHANGE);
+
+	if (device->state == device->target)
+		wake_up(&dasd_init_waitq);
 }
 
 /*
@@ -2157,6 +2157,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
 		    test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) &&
 		    (!dasd_eer_enabled(device))) {
 			cqr->status = DASD_CQR_FAILED;
+			cqr->intrc = -EAGAIN;
 			continue;
 		}
 		/* Don't try to start requests if device is stopped */
@@ -3270,6 +3271,16 @@ void dasd_generic_path_event(struct ccw_device *cdev, int *path_event)
 			dasd_schedule_device_bh(device);
 		}
 		if (path_event[chp] & PE_PATHGROUP_ESTABLISHED) {
+			if (!(device->path_data.opm & eventlpm) &&
+			    !(device->path_data.tbvpm & eventlpm)) {
+				/*
+				 * we can not establish a pathgroup on an
+				 * unavailable path, so trigger a path
+				 * verification first
+				 */
+				device->path_data.tbvpm |= eventlpm;
+				dasd_schedule_device_bh(device);
+			}
 			DBF_DEV_EVENT(DBF_WARNING, device, "%s",
 				      "Pathgroup re-established\n");
 			if (device->discipline->kick_validate)
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 157defe5e06..6b556995bb3 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -384,6 +384,29 @@ static void _remove_device_from_lcu(struct alias_lcu *lcu,
 		group->next = NULL;
 };
 
+static int
+suborder_not_supported(struct dasd_ccw_req *cqr)
+{
+	char *sense;
+	char reason;
+	char msg_format;
+	char msg_no;
+
+	sense = dasd_get_sense(&cqr->irb);
+	if (!sense)
+		return 0;
+
+	reason = sense[0];
+	msg_format = (sense[7] & 0xF0);
+	msg_no = (sense[7] & 0x0F);
+
+	/* command reject, Format 0 MSG 4 - invalid parameter */
+	if ((reason == 0x80) && (msg_format == 0x00) && (msg_no == 0x04))
+		return 1;
+
+	return 0;
+}
+
 static int read_unit_address_configuration(struct dasd_device *device,
 					   struct alias_lcu *lcu)
 {
@@ -435,6 +458,8 @@ static int read_unit_address_configuration(struct dasd_device *device,
 
 	do {
 		rc = dasd_sleep_on(cqr);
+		if (rc && suborder_not_supported(cqr))
+			return -EOPNOTSUPP;
 	} while (rc && (cqr->retries > 0));
 	if (rc) {
 		spin_lock_irqsave(&lcu->lock, flags);
@@ -521,7 +546,7 @@ static void lcu_update_work(struct work_struct *work)
 	 * processing the data
 	 */
 	spin_lock_irqsave(&lcu->lock, flags);
-	if (rc || (lcu->flags & NEED_UAC_UPDATE)) {
+	if ((rc && (rc != -EOPNOTSUPP)) || (lcu->flags & NEED_UAC_UPDATE)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
 			    " alias data in lcu (rc = %d), retry later", rc);
 		schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 40a826a7295..108332b44d9 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -20,6 +20,7 @@
 #include <linux/compat.h>
 #include <linux/init.h>
 
+#include <asm/css_chars.h>
 #include <asm/debug.h>
 #include <asm/idals.h>
 #include <asm/ebcdic.h>
@@ -31,8 +32,6 @@
 
 #include "dasd_int.h"
 #include "dasd_eckd.h"
-#include "../cio/chsc.h"
-
 
 #ifdef PRINTK_HEADER
 #undef PRINTK_HEADER
@@ -140,6 +139,10 @@ dasd_eckd_set_online(struct ccw_device *cdev)
 static const int sizes_trk0[] = { 28, 148, 84 };
 #define LABEL_SIZE 140
 
+/* head and record addresses of count_area read in analysis ccw */
+static const int count_area_head[] = { 0, 0, 0, 0, 2 };
+static const int count_area_rec[] = { 1, 2, 3, 4, 1 };
+
 static inline unsigned int
 round_up_multiple(unsigned int no, unsigned int mult)
 {
@@ -212,7 +215,7 @@ check_XRC (struct ccw1         *de_ccw,
 
 	rc = get_sync_clock(&data->ep_sys_time);
 	/* Ignore return code if sync clock is switched off. */
-	if (rc == -ENOSYS || rc == -EACCES)
+	if (rc == -EOPNOTSUPP || rc == -EACCES)
 		rc = 0;
 
 	de_ccw->count = sizeof(struct DE_eckd_data);
@@ -323,7 +326,7 @@ static int check_XRC_on_prefix(struct PFX_eckd_data *pfxdata,
 
 	rc = get_sync_clock(&pfxdata->define_extent.ep_sys_time);
 	/* Ignore return code if sync clock is switched off. */
-	if (rc == -ENOSYS || rc == -EACCES)
+	if (rc == -EOPNOTSUPP || rc == -EACCES)
 		rc = 0;
 	return rc;
 }
@@ -1507,7 +1510,8 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
  * call might change behaviour of DASD devices.
  */
 static int
-dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav)
+dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav,
+		  unsigned long flags)
 {
 	struct dasd_ccw_req *cqr;
 	int rc;
@@ -1516,10 +1520,19 @@ dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav)
 	if (IS_ERR(cqr))
 		return PTR_ERR(cqr);
 
+	/*
+	 * set flags e.g. turn on failfast, to prevent blocking
+	 * the calling function should handle failed requests
+	 */
+	cqr->flags |= flags;
+
 	rc = dasd_sleep_on(cqr);
 	if (!rc)
 		/* trigger CIO to reprobe devices */
 		css_schedule_reprobe();
+	else if (cqr->intrc == -EAGAIN)
+		rc = -EAGAIN;
+
 	dasd_sfree_request(cqr, cqr->memdev);
 	return rc;
 }
@@ -1527,7 +1540,8 @@ dasd_eckd_psf_ssc(struct dasd_device *device, int enable_pav)
 /*
  * Valide storage server of current device.
  */
-static void dasd_eckd_validate_server(struct dasd_device *device)
+static int dasd_eckd_validate_server(struct dasd_device *device,
+				     unsigned long flags)
 {
 	int rc;
 	struct dasd_eckd_private *private;
@@ -1536,17 +1550,18 @@ static void dasd_eckd_validate_server(struct dasd_device *device)
 	private = (struct dasd_eckd_private *) device->private;
 	if (private->uid.type == UA_BASE_PAV_ALIAS ||
 	    private->uid.type == UA_HYPER_PAV_ALIAS)
-		return;
+		return 0;
 	if (dasd_nopav || MACHINE_IS_VM)
 		enable_pav = 0;
 	else
 		enable_pav = 1;
-	rc = dasd_eckd_psf_ssc(device, enable_pav);
+	rc = dasd_eckd_psf_ssc(device, enable_pav, flags);
 
 	/* may be requested feature is not available on server,
 	 * therefore just report error and go ahead */
 	DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "PSF-SSC for SSID %04x "
 			"returned rc=%d", private->uid.ssid, rc);
+	return rc;
 }
 
 /*
@@ -1556,7 +1571,13 @@ static void dasd_eckd_do_validate_server(struct work_struct *work)
 {
 	struct dasd_device *device = container_of(work, struct dasd_device,
 						  kick_validate);
-	dasd_eckd_validate_server(device);
+	if (dasd_eckd_validate_server(device, DASD_CQR_FLAGS_FAILFAST)
+	    == -EAGAIN) {
+		/* schedule worker again if failed */
+		schedule_work(&device->kick_validate);
+		return;
+	}
+
 	dasd_put_device(device);
 }
 
@@ -1685,7 +1706,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 	if (rc)
 		goto out_err2;
 
-	dasd_eckd_validate_server(device);
+	dasd_eckd_validate_server(device, 0);
 
 	/* device may report different configuration data after LCU setup */
 	rc = dasd_eckd_read_conf(device);
@@ -1922,7 +1943,10 @@ static int dasd_eckd_end_analysis(struct dasd_block *block)
 	count_area = NULL;
 	for (i = 0; i < 3; i++) {
 		if (private->count_area[i].kl != 4 ||
-		    private->count_area[i].dl != dasd_eckd_cdl_reclen(i) - 4) {
+		    private->count_area[i].dl != dasd_eckd_cdl_reclen(i) - 4 ||
+		    private->count_area[i].cyl != 0 ||
+		    private->count_area[i].head != count_area_head[i] ||
+		    private->count_area[i].record != count_area_rec[i]) {
 			private->uses_cdl = 0;
 			break;
 		}
@@ -1934,7 +1958,10 @@ static int dasd_eckd_end_analysis(struct dasd_block *block)
 		for (i = 0; i < 5; i++) {
 			if ((private->count_area[i].kl != 0) ||
 			    (private->count_area[i].dl !=
-			     private->count_area[0].dl))
+			     private->count_area[0].dl) ||
+			    private->count_area[i].cyl !=  0 ||
+			    private->count_area[i].head != count_area_head[i] ||
+			    private->count_area[i].record != count_area_rec[i])
 				break;
 		}
 		if (i == 5)
@@ -3804,7 +3831,7 @@ dasd_eckd_ioctl(struct dasd_block *block, unsigned int cmd, void __user *argp)
 	case BIODASDSYMMIO:
 		return dasd_symm_io(device, argp);
 	default:
-		return -ENOIOCTLCMD;
+		return -ENOTTY;
 	}
 }
 
@@ -4153,7 +4180,7 @@ static int dasd_eckd_restore_device(struct dasd_device *device)
 	rc = dasd_alias_make_device_known_to_lcu(device);
 	if (rc)
 		return rc;
-	dasd_eckd_validate_server(device);
+	dasd_eckd_validate_server(device, DASD_CQR_FLAGS_FAILFAST);
 
 	/* RE-Read Configuration Data */
 	rc = dasd_eckd_read_conf(device);
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index cceae70279f..8252f37d04e 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -292,12 +292,12 @@ out:
 #else
 static int dasd_ioctl_reset_profile(struct dasd_block *block)
 {
-	return -ENOSYS;
+	return -ENOTTY;
 }
 
 static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
 {
-	return -ENOSYS;
+	return -ENOTTY;
 }
 #endif
 
@@ -498,12 +498,9 @@ int dasd_ioctl(struct block_device *bdev, fmode_t mode,
 		break;
 	default:
 		/* if the discipline has an ioctl method try it. */
-		if (base->discipline->ioctl) {
+		rc = -ENOTTY;
+		if (base->discipline->ioctl)
 			rc = base->discipline->ioctl(block, cmd, argp);
-			if (rc == -ENOIOCTLCMD)
-				rc = -EINVAL;
-		} else
-			rc = -EINVAL;
 	}
 	dasd_put_device(base);
 	return rc;
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
new file mode 100644
index 00000000000..9978ad4433c
--- /dev/null
+++ b/drivers/s390/block/scm_blk.c
@@ -0,0 +1,445 @@
+/*
+ * Block driver for s390 storage class memory.
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
+ */
+
+#define KMSG_COMPONENT "scm_block"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/blkdev.h>
+#include <linux/genhd.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <asm/eadm.h>
+#include "scm_blk.h"
+
+debug_info_t *scm_debug;
+static int scm_major;
+static DEFINE_SPINLOCK(list_lock);
+static LIST_HEAD(inactive_requests);
+static unsigned int nr_requests = 64;
+static atomic_t nr_devices = ATOMIC_INIT(0);
+module_param(nr_requests, uint, S_IRUGO);
+MODULE_PARM_DESC(nr_requests, "Number of parallel requests.");
+
+MODULE_DESCRIPTION("Block driver for s390 storage class memory.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("scm:scmdev*");
+
+static void __scm_free_rq(struct scm_request *scmrq)
+{
+	struct aob_rq_header *aobrq = to_aobrq(scmrq);
+
+	free_page((unsigned long) scmrq->aob);
+	free_page((unsigned long) scmrq->aidaw);
+	__scm_free_rq_cluster(scmrq);
+	kfree(aobrq);
+}
+
+static void scm_free_rqs(void)
+{
+	struct list_head *iter, *safe;
+	struct scm_request *scmrq;
+
+	spin_lock_irq(&list_lock);
+	list_for_each_safe(iter, safe, &inactive_requests) {
+		scmrq = list_entry(iter, struct scm_request, list);
+		list_del(&scmrq->list);
+		__scm_free_rq(scmrq);
+	}
+	spin_unlock_irq(&list_lock);
+}
+
+static int __scm_alloc_rq(void)
+{
+	struct aob_rq_header *aobrq;
+	struct scm_request *scmrq;
+
+	aobrq = kzalloc(sizeof(*aobrq) + sizeof(*scmrq), GFP_KERNEL);
+	if (!aobrq)
+		return -ENOMEM;
+
+	scmrq = (void *) aobrq->data;
+	scmrq->aidaw = (void *) get_zeroed_page(GFP_DMA);
+	scmrq->aob = (void *) get_zeroed_page(GFP_DMA);
+	if (!scmrq->aob || !scmrq->aidaw) {
+		__scm_free_rq(scmrq);
+		return -ENOMEM;
+	}
+
+	if (__scm_alloc_rq_cluster(scmrq)) {
+		__scm_free_rq(scmrq);
+		return -ENOMEM;
+	}
+
+	INIT_LIST_HEAD(&scmrq->list);
+	spin_lock_irq(&list_lock);
+	list_add(&scmrq->list, &inactive_requests);
+	spin_unlock_irq(&list_lock);
+
+	return 0;
+}
+
+static int scm_alloc_rqs(unsigned int nrqs)
+{
+	int ret = 0;
+
+	while (nrqs-- && !ret)
+		ret = __scm_alloc_rq();
+
+	return ret;
+}
+
+static struct scm_request *scm_request_fetch(void)
+{
+	struct scm_request *scmrq = NULL;
+
+	spin_lock(&list_lock);
+	if (list_empty(&inactive_requests))
+		goto out;
+	scmrq = list_first_entry(&inactive_requests, struct scm_request, list);
+	list_del(&scmrq->list);
+out:
+	spin_unlock(&list_lock);
+	return scmrq;
+}
+
+static void scm_request_done(struct scm_request *scmrq)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&list_lock, flags);
+	list_add(&scmrq->list, &inactive_requests);
+	spin_unlock_irqrestore(&list_lock, flags);
+}
+
+static int scm_open(struct block_device *blkdev, fmode_t mode)
+{
+	return scm_get_ref();
+}
+
+static int scm_release(struct gendisk *gendisk, fmode_t mode)
+{
+	scm_put_ref();
+	return 0;
+}
+
+static const struct block_device_operations scm_blk_devops = {
+	.owner = THIS_MODULE,
+	.open = scm_open,
+	.release = scm_release,
+};
+
+static void scm_request_prepare(struct scm_request *scmrq)
+{
+	struct scm_blk_dev *bdev = scmrq->bdev;
+	struct scm_device *scmdev = bdev->gendisk->private_data;
+	struct aidaw *aidaw = scmrq->aidaw;
+	struct msb *msb = &scmrq->aob->msb[0];
+	struct req_iterator iter;
+	struct bio_vec *bv;
+
+	msb->bs = MSB_BS_4K;
+	scmrq->aob->request.msb_count = 1;
+	msb->scm_addr = scmdev->address +
+		((u64) blk_rq_pos(scmrq->request) << 9);
+	msb->oc = (rq_data_dir(scmrq->request) == READ) ?
+		MSB_OC_READ : MSB_OC_WRITE;
+	msb->flags |= MSB_FLAG_IDA;
+	msb->data_addr = (u64) aidaw;
+
+	rq_for_each_segment(bv, scmrq->request, iter) {
+		WARN_ON(bv->bv_offset);
+		msb->blk_count += bv->bv_len >> 12;
+		aidaw->data_addr = (u64) page_address(bv->bv_page);
+		aidaw++;
+	}
+}
+
+static inline void scm_request_init(struct scm_blk_dev *bdev,
+				    struct scm_request *scmrq,
+				    struct request *req)
+{
+	struct aob_rq_header *aobrq = to_aobrq(scmrq);
+	struct aob *aob = scmrq->aob;
+
+	memset(aob, 0, sizeof(*aob));
+	memset(scmrq->aidaw, 0, PAGE_SIZE);
+	aobrq->scmdev = bdev->scmdev;
+	aob->request.cmd_code = ARQB_CMD_MOVE;
+	aob->request.data = (u64) aobrq;
+	scmrq->request = req;
+	scmrq->bdev = bdev;
+	scmrq->retries = 4;
+	scmrq->error = 0;
+	scm_request_cluster_init(scmrq);
+}
+
+static void scm_ensure_queue_restart(struct scm_blk_dev *bdev)
+{
+	if (atomic_read(&bdev->queued_reqs)) {
+		/* Queue restart is triggered by the next interrupt. */
+		return;
+	}
+	blk_delay_queue(bdev->rq, SCM_QUEUE_DELAY);
+}
+
+void scm_request_requeue(struct scm_request *scmrq)
+{
+	struct scm_blk_dev *bdev = scmrq->bdev;
+
+	scm_release_cluster(scmrq);
+	blk_requeue_request(bdev->rq, scmrq->request);
+	scm_request_done(scmrq);
+	scm_ensure_queue_restart(bdev);
+}
+
+void scm_request_finish(struct scm_request *scmrq)
+{
+	scm_release_cluster(scmrq);
+	blk_end_request_all(scmrq->request, scmrq->error);
+	scm_request_done(scmrq);
+}
+
+static void scm_blk_request(struct request_queue *rq)
+{
+	struct scm_device *scmdev = rq->queuedata;
+	struct scm_blk_dev *bdev = dev_get_drvdata(&scmdev->dev);
+	struct scm_request *scmrq;
+	struct request *req;
+	int ret;
+
+	while ((req = blk_peek_request(rq))) {
+		if (req->cmd_type != REQ_TYPE_FS)
+			continue;
+
+		scmrq = scm_request_fetch();
+		if (!scmrq) {
+			SCM_LOG(5, "no request");
+			scm_ensure_queue_restart(bdev);
+			return;
+		}
+		scm_request_init(bdev, scmrq, req);
+		if (!scm_reserve_cluster(scmrq)) {
+			SCM_LOG(5, "cluster busy");
+			scm_request_done(scmrq);
+			return;
+		}
+		if (scm_need_cluster_request(scmrq)) {
+			blk_start_request(req);
+			scm_initiate_cluster_request(scmrq);
+			return;
+		}
+		scm_request_prepare(scmrq);
+		blk_start_request(req);
+
+		ret = scm_start_aob(scmrq->aob);
+		if (ret) {
+			SCM_LOG(5, "no subchannel");
+			scm_request_requeue(scmrq);
+			return;
+		}
+		atomic_inc(&bdev->queued_reqs);
+	}
+}
+
+static void __scmrq_log_error(struct scm_request *scmrq)
+{
+	struct aob *aob = scmrq->aob;
+
+	if (scmrq->error == -ETIMEDOUT)
+		SCM_LOG(1, "Request timeout");
+	else {
+		SCM_LOG(1, "Request error");
+		SCM_LOG_HEX(1, &aob->response, sizeof(aob->response));
+	}
+	if (scmrq->retries)
+		SCM_LOG(1, "Retry request");
+	else
+		pr_err("An I/O operation to SCM failed with rc=%d\n",
+		       scmrq->error);
+}
+
+void scm_blk_irq(struct scm_device *scmdev, void *data, int error)
+{
+	struct scm_request *scmrq = data;
+	struct scm_blk_dev *bdev = scmrq->bdev;
+
+	scmrq->error = error;
+	if (error)
+		__scmrq_log_error(scmrq);
+
+	spin_lock(&bdev->lock);
+	list_add_tail(&scmrq->list, &bdev->finished_requests);
+	spin_unlock(&bdev->lock);
+	tasklet_hi_schedule(&bdev->tasklet);
+}
+
+static void scm_blk_tasklet(struct scm_blk_dev *bdev)
+{
+	struct scm_request *scmrq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bdev->lock, flags);
+	while (!list_empty(&bdev->finished_requests)) {
+		scmrq = list_first_entry(&bdev->finished_requests,
+					 struct scm_request, list);
+		list_del(&scmrq->list);
+		spin_unlock_irqrestore(&bdev->lock, flags);
+
+		if (scmrq->error && scmrq->retries-- > 0) {
+			if (scm_start_aob(scmrq->aob)) {
+				spin_lock_irqsave(&bdev->rq_lock, flags);
+				scm_request_requeue(scmrq);
+				spin_unlock_irqrestore(&bdev->rq_lock, flags);
+			}
+			/* Request restarted or requeued, handle next. */
+			spin_lock_irqsave(&bdev->lock, flags);
+			continue;
+		}
+
+		if (scm_test_cluster_request(scmrq)) {
+			scm_cluster_request_irq(scmrq);
+			spin_lock_irqsave(&bdev->lock, flags);
+			continue;
+		}
+
+		scm_request_finish(scmrq);
+		atomic_dec(&bdev->queued_reqs);
+		spin_lock_irqsave(&bdev->lock, flags);
+	}
+	spin_unlock_irqrestore(&bdev->lock, flags);
+	/* Look out for more requests. */
+	blk_run_queue(bdev->rq);
+}
+
+int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
+{
+	struct request_queue *rq;
+	int len, ret = -ENOMEM;
+	unsigned int devindex, nr_max_blk;
+
+	devindex = atomic_inc_return(&nr_devices) - 1;
+	/* scma..scmz + scmaa..scmzz */
+	if (devindex > 701) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	bdev->scmdev = scmdev;
+	spin_lock_init(&bdev->rq_lock);
+	spin_lock_init(&bdev->lock);
+	INIT_LIST_HEAD(&bdev->finished_requests);
+	atomic_set(&bdev->queued_reqs, 0);
+	tasklet_init(&bdev->tasklet,
+		     (void (*)(unsigned long)) scm_blk_tasklet,
+		     (unsigned long) bdev);
+
+	rq = blk_init_queue(scm_blk_request, &bdev->rq_lock);
+	if (!rq)
+		goto out;
+
+	bdev->rq = rq;
+	nr_max_blk = min(scmdev->nr_max_block,
+			 (unsigned int) (PAGE_SIZE / sizeof(struct aidaw)));
+
+	blk_queue_logical_block_size(rq, 1 << 12);
+	blk_queue_max_hw_sectors(rq, nr_max_blk << 3); /* 8 * 512 = blk_size */
+	blk_queue_max_segments(rq, nr_max_blk);
+	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, rq);
+	scm_blk_dev_cluster_setup(bdev);
+
+	bdev->gendisk = alloc_disk(SCM_NR_PARTS);
+	if (!bdev->gendisk)
+		goto out_queue;
+
+	rq->queuedata = scmdev;
+	bdev->gendisk->driverfs_dev = &scmdev->dev;
+	bdev->gendisk->private_data = scmdev;
+	bdev->gendisk->fops = &scm_blk_devops;
+	bdev->gendisk->queue = rq;
+	bdev->gendisk->major = scm_major;
+	bdev->gendisk->first_minor = devindex * SCM_NR_PARTS;
+
+	len = snprintf(bdev->gendisk->disk_name, DISK_NAME_LEN, "scm");
+	if (devindex > 25) {
+		len += snprintf(bdev->gendisk->disk_name + len,
+				DISK_NAME_LEN - len, "%c",
+				'a' + (devindex / 26) - 1);
+		devindex = devindex % 26;
+	}
+	snprintf(bdev->gendisk->disk_name + len, DISK_NAME_LEN - len, "%c",
+		 'a' + devindex);
+
+	/* 512 byte sectors */
+	set_capacity(bdev->gendisk, scmdev->size >> 9);
+	add_disk(bdev->gendisk);
+	return 0;
+
+out_queue:
+	blk_cleanup_queue(rq);
+out:
+	atomic_dec(&nr_devices);
+	return ret;
+}
+
+void scm_blk_dev_cleanup(struct scm_blk_dev *bdev)
+{
+	tasklet_kill(&bdev->tasklet);
+	del_gendisk(bdev->gendisk);
+	blk_cleanup_queue(bdev->gendisk->queue);
+	put_disk(bdev->gendisk);
+}
+
+static int __init scm_blk_init(void)
+{
+	int ret = -EINVAL;
+
+	if (!scm_cluster_size_valid())
+		goto out;
+
+	ret = register_blkdev(0, "scm");
+	if (ret < 0)
+		goto out;
+
+	scm_major = ret;
+	if (scm_alloc_rqs(nr_requests))
+		goto out_unreg;
+
+	scm_debug = debug_register("scm_log", 16, 1, 16);
+	if (!scm_debug)
+		goto out_free;
+
+	debug_register_view(scm_debug, &debug_hex_ascii_view);
+	debug_set_level(scm_debug, 2);
+
+	ret = scm_drv_init();
+	if (ret)
+		goto out_dbf;
+
+	return ret;
+
+out_dbf:
+	debug_unregister(scm_debug);
+out_free:
+	scm_free_rqs();
+out_unreg:
+	unregister_blkdev(scm_major, "scm");
+out:
+	return ret;
+}
+module_init(scm_blk_init);
+
+static void __exit scm_blk_cleanup(void)
+{
+	scm_drv_cleanup();
+	debug_unregister(scm_debug);
+	scm_free_rqs();
+	unregister_blkdev(scm_major, "scm");
+}
+module_exit(scm_blk_cleanup);
diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h
new file mode 100644
index 00000000000..7ac6bad919e
--- /dev/null
+++ b/drivers/s390/block/scm_blk.h
@@ -0,0 +1,117 @@
+#ifndef SCM_BLK_H
+#define SCM_BLK_H
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/blkdev.h>
+#include <linux/genhd.h>
+#include <linux/list.h>
+
+#include <asm/debug.h>
+#include <asm/eadm.h>
+
+#define SCM_NR_PARTS 8
+#define SCM_QUEUE_DELAY 5
+
+struct scm_blk_dev {
+	struct tasklet_struct tasklet;
+	struct request_queue *rq;
+	struct gendisk *gendisk;
+	struct scm_device *scmdev;
+	spinlock_t rq_lock;	/* guard the request queue */
+	spinlock_t lock;	/* guard the rest of the blockdev */
+	atomic_t queued_reqs;
+	struct list_head finished_requests;
+#ifdef CONFIG_SCM_BLOCK_CLUSTER_WRITE
+	struct list_head cluster_list;
+#endif
+};
+
+struct scm_request {
+	struct scm_blk_dev *bdev;
+	struct request *request;
+	struct aidaw *aidaw;
+	struct aob *aob;
+	struct list_head list;
+	u8 retries;
+	int error;
+#ifdef CONFIG_SCM_BLOCK_CLUSTER_WRITE
+	struct {
+		enum {CLUSTER_NONE, CLUSTER_READ, CLUSTER_WRITE} state;
+		struct list_head list;
+		void **buf;
+	} cluster;
+#endif
+};
+
+#define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data)
+
+int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *);
+void scm_blk_dev_cleanup(struct scm_blk_dev *);
+void scm_blk_irq(struct scm_device *, void *, int);
+
+void scm_request_finish(struct scm_request *);
+void scm_request_requeue(struct scm_request *);
+
+int scm_drv_init(void);
+void scm_drv_cleanup(void);
+
+#ifdef CONFIG_SCM_BLOCK_CLUSTER_WRITE
+void __scm_free_rq_cluster(struct scm_request *);
+int __scm_alloc_rq_cluster(struct scm_request *);
+void scm_request_cluster_init(struct scm_request *);
+bool scm_reserve_cluster(struct scm_request *);
+void scm_release_cluster(struct scm_request *);
+void scm_blk_dev_cluster_setup(struct scm_blk_dev *);
+bool scm_need_cluster_request(struct scm_request *);
+void scm_initiate_cluster_request(struct scm_request *);
+void scm_cluster_request_irq(struct scm_request *);
+bool scm_test_cluster_request(struct scm_request *);
+bool scm_cluster_size_valid(void);
+#else
+#define __scm_free_rq_cluster(scmrq) {}
+#define __scm_alloc_rq_cluster(scmrq) 0
+#define scm_request_cluster_init(scmrq) {}
+#define scm_reserve_cluster(scmrq) true
+#define scm_release_cluster(scmrq) {}
+#define scm_blk_dev_cluster_setup(bdev) {}
+#define scm_need_cluster_request(scmrq) false
+#define scm_initiate_cluster_request(scmrq) {}
+#define scm_cluster_request_irq(scmrq) {}
+#define scm_test_cluster_request(scmrq) false
+#define scm_cluster_size_valid() true
+#endif
+
+extern debug_info_t *scm_debug;
+
+#define SCM_LOG(imp, txt) do {					\
+		debug_text_event(scm_debug, imp, txt);		\
+	} while (0)
+
+static inline void SCM_LOG_HEX(int level, void *data, int length)
+{
+	if (level > scm_debug->level)
+		return;
+	while (length > 0) {
+		debug_event(scm_debug, level, data, length);
+		length -= scm_debug->buf_size;
+		data += scm_debug->buf_size;
+	}
+}
+
+static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)
+{
+	struct {
+		u64 address;
+		u8 oper_state;
+		u8 rank;
+	} __packed data = {
+		.address = scmdev->address,
+		.oper_state = scmdev->attrs.oper_state,
+		.rank = scmdev->attrs.rank,
+	};
+
+	SCM_LOG_HEX(level, &data, sizeof(data));
+}
+
+#endif /* SCM_BLK_H */
diff --git a/drivers/s390/block/scm_blk_cluster.c b/drivers/s390/block/scm_blk_cluster.c
new file mode 100644
index 00000000000..f4bb61b0cea
--- /dev/null
+++ b/drivers/s390/block/scm_blk_cluster.c
@@ -0,0 +1,228 @@
+/*
+ * Block driver for s390 storage class memory.
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
+ */
+
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/blkdev.h>
+#include <linux/genhd.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <asm/eadm.h>
+#include "scm_blk.h"
+
+static unsigned int write_cluster_size = 64;
+module_param(write_cluster_size, uint, S_IRUGO);
+MODULE_PARM_DESC(write_cluster_size,
+		 "Number of pages used for contiguous writes.");
+
+#define CLUSTER_SIZE (write_cluster_size * PAGE_SIZE)
+
+void __scm_free_rq_cluster(struct scm_request *scmrq)
+{
+	int i;
+
+	if (!scmrq->cluster.buf)
+		return;
+
+	for (i = 0; i < 2 * write_cluster_size; i++)
+		free_page((unsigned long) scmrq->cluster.buf[i]);
+
+	kfree(scmrq->cluster.buf);
+}
+
+int __scm_alloc_rq_cluster(struct scm_request *scmrq)
+{
+	int i;
+
+	scmrq->cluster.buf = kzalloc(sizeof(void *) * 2 * write_cluster_size,
+				 GFP_KERNEL);
+	if (!scmrq->cluster.buf)
+		return -ENOMEM;
+
+	for (i = 0; i < 2 * write_cluster_size; i++) {
+		scmrq->cluster.buf[i] = (void *) get_zeroed_page(GFP_DMA);
+		if (!scmrq->cluster.buf[i])
+			return -ENOMEM;
+	}
+	INIT_LIST_HEAD(&scmrq->cluster.list);
+	return 0;
+}
+
+void scm_request_cluster_init(struct scm_request *scmrq)
+{
+	scmrq->cluster.state = CLUSTER_NONE;
+}
+
+static bool clusters_intersect(struct scm_request *A, struct scm_request *B)
+{
+	unsigned long firstA, lastA, firstB, lastB;
+
+	firstA = ((u64) blk_rq_pos(A->request) << 9) / CLUSTER_SIZE;
+	lastA = (((u64) blk_rq_pos(A->request) << 9) +
+		    blk_rq_bytes(A->request) - 1) / CLUSTER_SIZE;
+
+	firstB = ((u64) blk_rq_pos(B->request) << 9) / CLUSTER_SIZE;
+	lastB = (((u64) blk_rq_pos(B->request) << 9) +
+		    blk_rq_bytes(B->request) - 1) / CLUSTER_SIZE;
+
+	return (firstB <= lastA && firstA <= lastB);
+}
+
+bool scm_reserve_cluster(struct scm_request *scmrq)
+{
+	struct scm_blk_dev *bdev = scmrq->bdev;
+	struct scm_request *iter;
+
+	if (write_cluster_size == 0)
+		return true;
+
+	spin_lock(&bdev->lock);
+	list_for_each_entry(iter, &bdev->cluster_list, cluster.list) {
+		if (clusters_intersect(scmrq, iter) &&
+		    (rq_data_dir(scmrq->request) == WRITE ||
+		     rq_data_dir(iter->request) == WRITE)) {
+			spin_unlock(&bdev->lock);
+			return false;
+		}
+	}
+	list_add(&scmrq->cluster.list, &bdev->cluster_list);
+	spin_unlock(&bdev->lock);
+
+	return true;
+}
+
+void scm_release_cluster(struct scm_request *scmrq)
+{
+	struct scm_blk_dev *bdev = scmrq->bdev;
+	unsigned long flags;
+
+	if (write_cluster_size == 0)
+		return;
+
+	spin_lock_irqsave(&bdev->lock, flags);
+	list_del(&scmrq->cluster.list);
+	spin_unlock_irqrestore(&bdev->lock, flags);
+}
+
+void scm_blk_dev_cluster_setup(struct scm_blk_dev *bdev)
+{
+	INIT_LIST_HEAD(&bdev->cluster_list);
+	blk_queue_io_opt(bdev->rq, CLUSTER_SIZE);
+}
+
+static void scm_prepare_cluster_request(struct scm_request *scmrq)
+{
+	struct scm_blk_dev *bdev = scmrq->bdev;
+	struct scm_device *scmdev = bdev->gendisk->private_data;
+	struct request *req = scmrq->request;
+	struct aidaw *aidaw = scmrq->aidaw;
+	struct msb *msb = &scmrq->aob->msb[0];
+	struct req_iterator iter;
+	struct bio_vec *bv;
+	int i = 0;
+	u64 addr;
+
+	switch (scmrq->cluster.state) {
+	case CLUSTER_NONE:
+		scmrq->cluster.state = CLUSTER_READ;
+		/* fall through */
+	case CLUSTER_READ:
+		scmrq->aob->request.msb_count = 1;
+		msb->bs = MSB_BS_4K;
+		msb->oc = MSB_OC_READ;
+		msb->flags = MSB_FLAG_IDA;
+		msb->data_addr = (u64) aidaw;
+		msb->blk_count = write_cluster_size;
+
+		addr = scmdev->address + ((u64) blk_rq_pos(req) << 9);
+		msb->scm_addr = round_down(addr, CLUSTER_SIZE);
+
+		if (msb->scm_addr !=
+		    round_down(addr + (u64) blk_rq_bytes(req) - 1,
+			       CLUSTER_SIZE))
+			msb->blk_count = 2 * write_cluster_size;
+
+		for (i = 0; i < msb->blk_count; i++) {
+			aidaw->data_addr = (u64) scmrq->cluster.buf[i];
+			aidaw++;
+		}
+
+		break;
+	case CLUSTER_WRITE:
+		msb->oc = MSB_OC_WRITE;
+
+		for (addr = msb->scm_addr;
+		     addr < scmdev->address + ((u64) blk_rq_pos(req) << 9);
+		     addr += PAGE_SIZE) {
+			aidaw->data_addr = (u64) scmrq->cluster.buf[i];
+			aidaw++;
+			i++;
+		}
+		rq_for_each_segment(bv, req, iter) {
+			aidaw->data_addr = (u64) page_address(bv->bv_page);
+			aidaw++;
+			i++;
+		}
+		for (; i < msb->blk_count; i++) {
+			aidaw->data_addr = (u64) scmrq->cluster.buf[i];
+			aidaw++;
+		}
+		break;
+	}
+}
+
+bool scm_need_cluster_request(struct scm_request *scmrq)
+{
+	if (rq_data_dir(scmrq->request) == READ)
+		return false;
+
+	return blk_rq_bytes(scmrq->request) < CLUSTER_SIZE;
+}
+
+/* Called with queue lock held. */
+void scm_initiate_cluster_request(struct scm_request *scmrq)
+{
+	scm_prepare_cluster_request(scmrq);
+	if (scm_start_aob(scmrq->aob))
+		scm_request_requeue(scmrq);
+}
+
+bool scm_test_cluster_request(struct scm_request *scmrq)
+{
+	return scmrq->cluster.state != CLUSTER_NONE;
+}
+
+void scm_cluster_request_irq(struct scm_request *scmrq)
+{
+	struct scm_blk_dev *bdev = scmrq->bdev;
+	unsigned long flags;
+
+	switch (scmrq->cluster.state) {
+	case CLUSTER_NONE:
+		BUG();
+		break;
+	case CLUSTER_READ:
+		if (scmrq->error) {
+			scm_request_finish(scmrq);
+			break;
+		}
+		scmrq->cluster.state = CLUSTER_WRITE;
+		spin_lock_irqsave(&bdev->rq_lock, flags);
+		scm_initiate_cluster_request(scmrq);
+		spin_unlock_irqrestore(&bdev->rq_lock, flags);
+		break;
+	case CLUSTER_WRITE:
+		scm_request_finish(scmrq);
+		break;
+	}
+}
+
+bool scm_cluster_size_valid(void)
+{
+	return write_cluster_size == 0 || write_cluster_size == 32 ||
+		write_cluster_size == 64 || write_cluster_size == 128;
+}
diff --git a/drivers/s390/block/scm_drv.c b/drivers/s390/block/scm_drv.c
new file mode 100644
index 00000000000..9fa0a908607
--- /dev/null
+++ b/drivers/s390/block/scm_drv.c
@@ -0,0 +1,81 @@
+/*
+ * Device driver for s390 storage class memory.
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
+ */
+
+#define KMSG_COMPONENT "scm_block"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <asm/eadm.h>
+#include "scm_blk.h"
+
+static void notify(struct scm_device *scmdev)
+{
+	pr_info("%lu: The capabilities of the SCM increment changed\n",
+		(unsigned long) scmdev->address);
+	SCM_LOG(2, "State changed");
+	SCM_LOG_STATE(2, scmdev);
+}
+
+static int scm_probe(struct scm_device *scmdev)
+{
+	struct scm_blk_dev *bdev;
+	int ret;
+
+	SCM_LOG(2, "probe");
+	SCM_LOG_STATE(2, scmdev);
+
+	if (scmdev->attrs.oper_state != OP_STATE_GOOD)
+		return -EINVAL;
+
+	bdev = kzalloc(sizeof(*bdev), GFP_KERNEL);
+	if (!bdev)
+		return -ENOMEM;
+
+	dev_set_drvdata(&scmdev->dev, bdev);
+	ret = scm_blk_dev_setup(bdev, scmdev);
+	if (ret) {
+		dev_set_drvdata(&scmdev->dev, NULL);
+		kfree(bdev);
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+static int scm_remove(struct scm_device *scmdev)
+{
+	struct scm_blk_dev *bdev = dev_get_drvdata(&scmdev->dev);
+
+	scm_blk_dev_cleanup(bdev);
+	dev_set_drvdata(&scmdev->dev, NULL);
+	kfree(bdev);
+
+	return 0;
+}
+
+static struct scm_driver scm_drv = {
+	.drv = {
+		.name = "scm_block",
+		.owner = THIS_MODULE,
+	},
+	.notify = notify,
+	.probe = scm_probe,
+	.remove = scm_remove,
+	.handler = scm_blk_irq,
+};
+
+int __init scm_drv_init(void)
+{
+	return scm_driver_register(&scm_drv);
+}
+
+void scm_drv_cleanup(void)
+{
+	scm_driver_unregister(&scm_drv);
+}
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 6c0116d48c7..9ffb6d5f17a 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -716,10 +716,17 @@ static int raw3215_probe (struct ccw_device *cdev)
 static void raw3215_remove (struct ccw_device *cdev)
 {
 	struct raw3215_info *raw;
+	unsigned int line;
 
 	ccw_device_set_offline(cdev);
 	raw = dev_get_drvdata(&cdev->dev);
 	if (raw) {
+		spin_lock(&raw3215_device_lock);
+		for (line = 0; line < NR_3215; line++)
+			if (raw3215[line] == raw)
+				break;
+		raw3215[line] = NULL;
+		spin_unlock(&raw3215_device_lock);
 		dev_set_drvdata(&cdev->dev, NULL);
 		raw3215_free_info(raw);
 	}
@@ -935,6 +942,19 @@ static int __init con3215_init(void)
 console_initcall(con3215_init);
 #endif
 
+static int tty3215_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct raw3215_info *raw;
+
+	raw = raw3215[tty->index];
+	if (raw == NULL)
+		return -ENODEV;
+
+	tty->driver_data = raw;
+
+	return tty_port_install(&raw->port, driver, tty);
+}
+
 /*
  * tty3215_open
  *
@@ -942,14 +962,9 @@ console_initcall(con3215_init);
  */
 static int tty3215_open(struct tty_struct *tty, struct file * filp)
 {
-	struct raw3215_info *raw;
+	struct raw3215_info *raw = tty->driver_data;
 	int retval;
 
-	raw = raw3215[tty->index];
-	if (raw == NULL)
-		return -ENODEV;
-
-	tty->driver_data = raw;
 	tty_port_tty_set(&raw->port, tty);
 
 	tty->low_latency = 0;  /* don't use bottom half for pushing chars */
@@ -1110,6 +1125,7 @@ static void tty3215_start(struct tty_struct *tty)
 }
 
 static const struct tty_operations tty3215_ops = {
+	.install = tty3215_install,
 	.open = tty3215_open,
 	.close = tty3215_close,
 	.write = tty3215_write,
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index bb07577e8fd..699fd3e363d 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -35,7 +35,6 @@ static struct raw3270_fn con3270_fn;
  */
 struct con3270 {
 	struct raw3270_view view;
-	spinlock_t lock;
 	struct list_head freemem;	/* list of free memory for strings. */
 
 	/* Output stuff. */
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 5b8b8592d31..f4ff515db25 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -571,8 +571,11 @@ static int __init mon_init(void)
 	if (rc)
 		goto out_iucv;
 	monreader_device = kzalloc(sizeof(struct device), GFP_KERNEL);
-	if (!monreader_device)
+	if (!monreader_device) {
+		rc = -ENOMEM;
 		goto out_driver;
+	}
+
 	dev_set_name(monreader_device, "monreader-dev");
 	monreader_device->bus = &iucv_bus;
 	monreader_device->parent = iucv_root;
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 3fcc000efc5..4fa21f7e230 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -334,7 +334,7 @@ sclp_dispatch_evbufs(struct sccb_header *sccb)
 			reg->receiver_fn(evbuf);
 			spin_lock_irqsave(&sclp_lock, flags);
 		} else if (reg == NULL)
-			rc = -ENOSYS;
+			rc = -EOPNOTSUPP;
 	}
 	spin_unlock_irqrestore(&sclp_lock, flags);
 	return rc;
diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c
index 4be63be7344..3b13d58fe87 100644
--- a/drivers/s390/char/sclp_rw.c
+++ b/drivers/s390/char/sclp_rw.c
@@ -463,7 +463,7 @@ sclp_emit_buffer(struct sclp_buffer *buffer,
 		/* Use write priority message */
 		sccb->msg_buf.header.type = EVTYP_PMSGCMD;
 	else
-		return -ENOSYS;
+		return -EOPNOTSUPP;
 	buffer->request.command = SCLP_CMDW_WRITE_EVENT_DATA;
 	buffer->request.status = SCLP_REQ_FILLED;
 	buffer->request.callback = sclp_writedata_callback;
diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c
index 6a6f76bf6e3..b1032931a1c 100644
--- a/drivers/s390/char/sclp_sdias.c
+++ b/drivers/s390/char/sclp_sdias.c
@@ -242,11 +242,13 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
 	switch (sdias_evbuf.event_status) {
 		case EVSTATE_ALL_STORED:
 			TRACE("all stored\n");
+			break;
 		case EVSTATE_PART_STORED:
 			TRACE("part stored: %i\n", sdias_evbuf.blk_cnt);
 			break;
 		case EVSTATE_NO_DATA:
 			TRACE("no data\n");
+			/* fall through */
 		default:
 			pr_err("Error from SCLP while copying hsa. "
 			       "Event status = %x\n",
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 0792c85baaf..30ec09e3d03 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -567,6 +567,7 @@ sclp_tty_init(void)
 	driver->init_termios.c_lflag = ISIG | ECHO;
 	driver->flags = TTY_DRIVER_REAL_RAW;
 	tty_set_operations(driver, &sclp_ops);
+	tty_port_link_device(&sclp_port, driver, 0);
 	rc = tty_register_driver(driver);
 	if (rc) {
 		put_tty_driver(driver);
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index edfc0fd73dc..7e60f3d2f3f 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -691,6 +691,7 @@ static int __init sclp_vt220_tty_init(void)
 	driver->init_termios = tty_std_termios;
 	driver->flags = TTY_DRIVER_REAL_RAW;
 	tty_set_operations(driver, &sclp_vt220_ops);
+	tty_port_link_device(&sclp_vt220_port, driver, 0);
 
 	rc = tty_register_driver(driver);
 	if (rc)
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index c06be6cc2fc..ea664dd4f56 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -15,7 +15,6 @@
 #include <asm/ccwdev.h>
 #include <asm/debug.h>
 #include <asm/idals.h>
-#include <linux/blkdev.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mtio.h>
diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h
index c5816ad9ed7..8c760c03683 100644
--- a/drivers/s390/char/tape_std.h
+++ b/drivers/s390/char/tape_std.h
@@ -100,11 +100,7 @@ struct tape_request *tape_std_read_block(struct tape_device *, size_t);
 void tape_std_read_backward(struct tape_device *device,
 			    struct tape_request *request);
 struct tape_request *tape_std_write_block(struct tape_device *, size_t);
-struct tape_request *tape_std_bread(struct tape_device *, struct request *);
-void tape_std_free_bread(struct tape_request *);
 void tape_std_check_locate(struct tape_device *, struct tape_request *);
-struct tape_request *tape_std_bwrite(struct request *,
-				     struct tape_device *, int);
 
 /* Some non-mtop commands. */
 int tape_std_assign(struct tape_device *);
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 1928f3458d1..482ee028f84 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -842,17 +842,14 @@ static struct raw3270_fn tty3270_fn = {
 };
 
 /*
- * This routine is called whenever a 3270 tty is opened.
+ * This routine is called whenever a 3270 tty is opened first time.
  */
-static int
-tty3270_open(struct tty_struct *tty, struct file * filp)
+static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct raw3270_view *view;
 	struct tty3270 *tp;
 	int i, rc;
 
-	if (tty->count > 1)
-		return 0;
 	/* Check if the tty3270 is already there. */
 	view = raw3270_find_view(&tty3270_fn,
 				  tty->index + RAW3270_FIRSTMINOR);
@@ -865,7 +862,7 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 		/* why to reassign? */
 		tty_port_tty_set(&tp->port, tty);
 		tp->inattr = TF_INPUT;
-		return 0;
+		return tty_port_install(&tp->port, driver, tty);
 	}
 	if (tty3270_max_index < tty->index + 1)
 		tty3270_max_index = tty->index + 1;
@@ -895,7 +892,6 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 
 	tty_port_tty_set(&tp->port, tty);
 	tty->low_latency = 0;
-	tty->driver_data = tp;
 	tty->winsize.ws_row = tp->view.rows - 2;
 	tty->winsize.ws_col = tp->view.cols;
 
@@ -915,6 +911,15 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 	kbd_ascebc(tp->kbd, tp->view.ascebc);
 
 	raw3270_activate_view(&tp->view);
+
+	rc = tty_port_install(&tp->port, driver, tty);
+	if (rc) {
+		raw3270_put_view(&tp->view);
+		return rc;
+	}
+
+	tty->driver_data = tp;
+
 	return 0;
 }
 
@@ -932,10 +937,17 @@ tty3270_close(struct tty_struct *tty, struct file * filp)
 	if (tp) {
 		tty->driver_data = NULL;
 		tty_port_tty_set(&tp->port, NULL);
-		raw3270_put_view(&tp->view);
 	}
 }
 
+static void tty3270_cleanup(struct tty_struct *tty)
+{
+	struct tty3270 *tp = tty->driver_data;
+
+	if (tp)
+		raw3270_put_view(&tp->view);
+}
+
 /*
  * We always have room.
  */
@@ -1737,7 +1749,8 @@ static long tty3270_compat_ioctl(struct tty_struct *tty,
 #endif
 
 static const struct tty_operations tty3270_ops = {
-	.open = tty3270_open,
+	.install = tty3270_install,
+	.cleanup = tty3270_cleanup,
 	.close = tty3270_close,
 	.write = tty3270_write,
 	.put_char = tty3270_put_char,
@@ -1781,7 +1794,7 @@ static int __init tty3270_init(void)
 	driver->type = TTY_DRIVER_TYPE_SYSTEM;
 	driver->subtype = SYSTEM_TYPE_TTY;
 	driver->init_termios = tty_std_termios;
-	driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_DYNAMIC_DEV;
+	driver->flags = TTY_DRIVER_RESET_TERMIOS;
 	tty_set_operations(driver, &tty3270_ops);
 	ret = tty_register_driver(driver);
 	if (ret) {
@@ -1800,6 +1813,7 @@ tty3270_exit(void)
 	driver = tty3270_driver;
 	tty3270_driver = NULL;
 	tty_unregister_driver(driver);
+	put_tty_driver(driver);
 	tty3270_del_views();
 }
 
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index c131bc40f96..9b3a24e8d3a 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -321,7 +321,7 @@ static int vmlogrdr_open (struct inode *inode, struct file *filp)
 	 * only allow for blocking reads to be open
 	 */
 	if (filp->f_flags & O_NONBLOCK)
-		return -ENOSYS;
+		return -EOPNOTSUPP;
 
 	/* Besure this device hasn't already been opened */
 	spin_lock_bh(&logptr->priv_lock);
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index e1b700a1964..8c4a386e97f 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -8,6 +8,8 @@ ccw_device-objs += device.o device_fsm.o device_ops.o
 ccw_device-objs += device_id.o device_pgid.o device_status.o
 obj-y += ccw_device.o cmf.o
 obj-$(CONFIG_CHSC_SCH) += chsc_sch.o
+obj-$(CONFIG_EADM_SCH) += eadm_sch.o
+obj-$(CONFIG_SCM_BUS) += scm.o
 obj-$(CONFIG_CCWGROUP) += ccwgroup.o
 
 qdio-objs := qdio_main.o qdio_thinint.o qdio_debug.o qdio_setup.o
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index cfe0c087fe5..4d51a7c4eb8 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -52,6 +52,11 @@ int chsc_error_from_response(int response)
 		return -EINVAL;
 	case 0x0004:
 		return -EOPNOTSUPP;
+	case 0x000b:
+		return -EBUSY;
+	case 0x0100:
+	case 0x0102:
+		return -ENOMEM;
 	default:
 		return -EIO;
 	}
@@ -393,6 +398,20 @@ static void chsc_process_sei_chp_config(struct chsc_sei_area *sei_area)
 	}
 }
 
+static void chsc_process_sei_scm_change(struct chsc_sei_area *sei_area)
+{
+	int ret;
+
+	CIO_CRW_EVENT(4, "chsc: scm change notification\n");
+	if (sei_area->rs != 7)
+		return;
+
+	ret = scm_update_information();
+	if (ret)
+		CIO_CRW_EVENT(0, "chsc: updating change notification"
+			      " failed (rc=%d).\n", ret);
+}
+
 static void chsc_process_sei(struct chsc_sei_area *sei_area)
 {
 	/* Check if we might have lost some information. */
@@ -414,6 +433,9 @@ static void chsc_process_sei(struct chsc_sei_area *sei_area)
 	case 8: /* channel-path-configuration notification */
 		chsc_process_sei_chp_config(sei_area);
 		break;
+	case 12: /* scm change notification */
+		chsc_process_sei_scm_change(sei_area);
+		break;
 	default: /* other stuff */
 		CIO_CRW_EVENT(4, "chsc: unhandled sei content code %d\n",
 			      sei_area->cc);
@@ -1047,3 +1069,33 @@ out:
 	return rc;
 }
 EXPORT_SYMBOL_GPL(chsc_siosl);
+
+/**
+ * chsc_scm_info() - store SCM information (SSI)
+ * @scm_area: request and response block for SSI
+ * @token: continuation token
+ *
+ * Returns 0 on success.
+ */
+int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token)
+{
+	int ccode, ret;
+
+	memset(scm_area, 0, sizeof(*scm_area));
+	scm_area->request.length = 0x0020;
+	scm_area->request.code = 0x004C;
+	scm_area->reqtok = token;
+
+	ccode = chsc(scm_area);
+	if (ccode > 0) {
+		ret = (ccode == 3) ? -ENODEV : -EBUSY;
+		goto out;
+	}
+	ret = chsc_error_from_response(scm_area->response.code);
+	if (ret != 0)
+		CIO_MSG_EVENT(2, "chsc: scm info failed (rc=%04x)\n",
+			      scm_area->response.code);
+out:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(chsc_scm_info);
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 3f15b2aaeae..662dab4b93e 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
+#include <asm/css_chars.h>
 #include <asm/chpid.h>
 #include <asm/chsc.h>
 #include <asm/schid.h>
@@ -118,4 +119,46 @@ int chsc_error_from_response(int response);
 
 int chsc_siosl(struct subchannel_id schid);
 
+/* Functions and definitions to query storage-class memory. */
+struct sale {
+	u64 sa;
+	u32 p:4;
+	u32 op_state:4;
+	u32 data_state:4;
+	u32 rank:4;
+	u32 r:1;
+	u32:7;
+	u32 rid:8;
+	u32:32;
+} __packed;
+
+struct chsc_scm_info {
+	struct chsc_header request;
+	u32:32;
+	u64 reqtok;
+	u32 reserved1[4];
+	struct chsc_header response;
+	u64:56;
+	u8 rq;
+	u32 mbc;
+	u64 msa;
+	u16 is;
+	u16 mmc;
+	u32 mci;
+	u64 nr_scm_ini;
+	u64 nr_scm_unini;
+	u32 reserved2[10];
+	u64 restok;
+	struct sale scmal[248];
+} __packed;
+
+int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
+
+#ifdef CONFIG_SCM_BUS
+int scm_update_information(void);
+#else /* CONFIG_SCM_BUS */
+#define scm_update_information() 0
+#endif /* CONFIG_SCM_BUS */
+
+
 #endif
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 33d1ef70359..8e927b9f285 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -1029,7 +1029,7 @@ extern void do_reipl_asm(__u32 schid);
 /* Make sure all subchannels are quiet before we re-ipl an lpar. */
 void reipl_ccw_dev(struct ccw_dev_id *devid)
 {
-	struct subchannel_id schid;
+	struct subchannel_id uninitialized_var(schid);
 
 	s390_reset_system(NULL, NULL);
 	if (reipl_find_schid(devid, &schid) != 0)
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 21908e67bf6..b4d572f65f0 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -445,6 +445,7 @@ void css_sched_sch_todo(struct subchannel *sch, enum sch_todo todo)
 		put_device(&sch->dev);
 	}
 }
+EXPORT_SYMBOL_GPL(css_sched_sch_todo);
 
 static void css_sch_todo(struct work_struct *work)
 {
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index ed25c8740a9..fc916f5d731 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1426,6 +1426,8 @@ static enum io_sch_action sch_get_action(struct subchannel *sch)
 		return IO_SCH_REPROBE;
 	if (cdev->online)
 		return IO_SCH_VERIFY;
+	if (cdev->private->state == DEV_STATE_NOT_OPER)
+		return IO_SCH_UNREG_ATTACH;
 	return IO_SCH_NOP;
 }
 
@@ -1519,11 +1521,14 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 			goto out;
 		break;
 	case IO_SCH_UNREG_ATTACH:
+		spin_lock_irqsave(sch->lock, flags);
 		if (cdev->private->flags.resuming) {
 			/* Device will be handled later. */
 			rc = 0;
-			goto out;
+			goto out_unlock;
 		}
+		sch_set_cdev(sch, NULL);
+		spin_unlock_irqrestore(sch->lock, flags);
 		/* Unregister ccw device. */
 		ccw_device_unregister(cdev);
 		break;
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
new file mode 100644
index 00000000000..6c967340046
--- /dev/null
+++ b/drivers/s390/cio/eadm_sch.c
@@ -0,0 +1,401 @@
+/*
+ * Driver for s390 eadm subchannels
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
+ */
+
+#include <linux/kernel_stat.h>
+#include <linux/workqueue.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+
+#include <asm/css_chars.h>
+#include <asm/debug.h>
+#include <asm/isc.h>
+#include <asm/cio.h>
+#include <asm/scsw.h>
+#include <asm/eadm.h>
+
+#include "eadm_sch.h"
+#include "ioasm.h"
+#include "cio.h"
+#include "css.h"
+#include "orb.h"
+
+MODULE_DESCRIPTION("driver for s390 eadm subchannels");
+MODULE_LICENSE("GPL");
+
+#define EADM_TIMEOUT (5 * HZ)
+static DEFINE_SPINLOCK(list_lock);
+static LIST_HEAD(eadm_list);
+
+static debug_info_t *eadm_debug;
+
+#define EADM_LOG(imp, txt) do {					\
+		debug_text_event(eadm_debug, imp, txt);		\
+	} while (0)
+
+static void EADM_LOG_HEX(int level, void *data, int length)
+{
+	if (level > eadm_debug->level)
+		return;
+	while (length > 0) {
+		debug_event(eadm_debug, level, data, length);
+		length -= eadm_debug->buf_size;
+		data += eadm_debug->buf_size;
+	}
+}
+
+static void orb_init(union orb *orb)
+{
+	memset(orb, 0, sizeof(union orb));
+	orb->eadm.compat1 = 1;
+	orb->eadm.compat2 = 1;
+	orb->eadm.fmt = 1;
+	orb->eadm.x = 1;
+}
+
+static int eadm_subchannel_start(struct subchannel *sch, struct aob *aob)
+{
+	union orb *orb = &get_eadm_private(sch)->orb;
+	int cc;
+
+	orb_init(orb);
+	orb->eadm.aob = (u32)__pa(aob);
+	orb->eadm.intparm = (u32)(addr_t)sch;
+	orb->eadm.key = PAGE_DEFAULT_KEY >> 4;
+
+	EADM_LOG(6, "start");
+	EADM_LOG_HEX(6, &sch->schid, sizeof(sch->schid));
+
+	cc = ssch(sch->schid, orb);
+	switch (cc) {
+	case 0:
+		sch->schib.scsw.eadm.actl |= SCSW_ACTL_START_PEND;
+		break;
+	case 1:		/* status pending */
+	case 2:		/* busy */
+		return -EBUSY;
+	case 3:		/* not operational */
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static int eadm_subchannel_clear(struct subchannel *sch)
+{
+	int cc;
+
+	cc = csch(sch->schid);
+	if (cc)
+		return -ENODEV;
+
+	sch->schib.scsw.eadm.actl |= SCSW_ACTL_CLEAR_PEND;
+	return 0;
+}
+
+static void eadm_subchannel_timeout(unsigned long data)
+{
+	struct subchannel *sch = (struct subchannel *) data;
+
+	spin_lock_irq(sch->lock);
+	EADM_LOG(1, "timeout");
+	EADM_LOG_HEX(1, &sch->schid, sizeof(sch->schid));
+	if (eadm_subchannel_clear(sch))
+		EADM_LOG(0, "clear failed");
+	spin_unlock_irq(sch->lock);
+}
+
+static void eadm_subchannel_set_timeout(struct subchannel *sch, int expires)
+{
+	struct eadm_private *private = get_eadm_private(sch);
+
+	if (expires == 0) {
+		del_timer(&private->timer);
+		return;
+	}
+	if (timer_pending(&private->timer)) {
+		if (mod_timer(&private->timer, jiffies + expires))
+			return;
+	}
+	private->timer.function = eadm_subchannel_timeout;
+	private->timer.data = (unsigned long) sch;
+	private->timer.expires = jiffies + expires;
+	add_timer(&private->timer);
+}
+
+static void eadm_subchannel_irq(struct subchannel *sch)
+{
+	struct eadm_private *private = get_eadm_private(sch);
+	struct eadm_scsw *scsw = &sch->schib.scsw.eadm;
+	struct irb *irb = (struct irb *)&S390_lowcore.irb;
+	int error = 0;
+
+	EADM_LOG(6, "irq");
+	EADM_LOG_HEX(6, irb, sizeof(*irb));
+
+	kstat_cpu(smp_processor_id()).irqs[IOINT_ADM]++;
+
+	if ((scsw->stctl & (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))
+	    && scsw->eswf == 1 && irb->esw.eadm.erw.r)
+		error = -EIO;
+
+	if (scsw->fctl & SCSW_FCTL_CLEAR_FUNC)
+		error = -ETIMEDOUT;
+
+	eadm_subchannel_set_timeout(sch, 0);
+
+	if (private->state != EADM_BUSY) {
+		EADM_LOG(1, "irq unsol");
+		EADM_LOG_HEX(1, irb, sizeof(*irb));
+		private->state = EADM_NOT_OPER;
+		css_sched_sch_todo(sch, SCH_TODO_EVAL);
+		return;
+	}
+	scm_irq_handler((struct aob *)(unsigned long)scsw->aob, error);
+	private->state = EADM_IDLE;
+}
+
+static struct subchannel *eadm_get_idle_sch(void)
+{
+	struct eadm_private *private;
+	struct subchannel *sch;
+	unsigned long flags;
+
+	spin_lock_irqsave(&list_lock, flags);
+	list_for_each_entry(private, &eadm_list, head) {
+		sch = private->sch;
+		spin_lock(sch->lock);
+		if (private->state == EADM_IDLE) {
+			private->state = EADM_BUSY;
+			list_move_tail(&private->head, &eadm_list);
+			spin_unlock(sch->lock);
+			spin_unlock_irqrestore(&list_lock, flags);
+
+			return sch;
+		}
+		spin_unlock(sch->lock);
+	}
+	spin_unlock_irqrestore(&list_lock, flags);
+
+	return NULL;
+}
+
+static int eadm_start_aob(struct aob *aob)
+{
+	struct eadm_private *private;
+	struct subchannel *sch;
+	unsigned long flags;
+	int ret;
+
+	sch = eadm_get_idle_sch();
+	if (!sch)
+		return -EBUSY;
+
+	spin_lock_irqsave(sch->lock, flags);
+	eadm_subchannel_set_timeout(sch, EADM_TIMEOUT);
+	ret = eadm_subchannel_start(sch, aob);
+	if (!ret)
+		goto out_unlock;
+
+	/* Handle start subchannel failure. */
+	eadm_subchannel_set_timeout(sch, 0);
+	private = get_eadm_private(sch);
+	private->state = EADM_NOT_OPER;
+	css_sched_sch_todo(sch, SCH_TODO_EVAL);
+
+out_unlock:
+	spin_unlock_irqrestore(sch->lock, flags);
+
+	return ret;
+}
+
+static int eadm_subchannel_probe(struct subchannel *sch)
+{
+	struct eadm_private *private;
+	int ret;
+
+	private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+	if (!private)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&private->head);
+	init_timer(&private->timer);
+
+	spin_lock_irq(sch->lock);
+	set_eadm_private(sch, private);
+	private->state = EADM_IDLE;
+	private->sch = sch;
+	sch->isc = EADM_SCH_ISC;
+	ret = cio_enable_subchannel(sch, (u32)(unsigned long)sch);
+	if (ret) {
+		set_eadm_private(sch, NULL);
+		spin_unlock_irq(sch->lock);
+		kfree(private);
+		goto out;
+	}
+	spin_unlock_irq(sch->lock);
+
+	spin_lock_irq(&list_lock);
+	list_add(&private->head, &eadm_list);
+	spin_unlock_irq(&list_lock);
+
+	if (dev_get_uevent_suppress(&sch->dev)) {
+		dev_set_uevent_suppress(&sch->dev, 0);
+		kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
+	}
+out:
+	return ret;
+}
+
+static void eadm_quiesce(struct subchannel *sch)
+{
+	int ret;
+
+	do {
+		spin_lock_irq(sch->lock);
+		ret = cio_disable_subchannel(sch);
+		spin_unlock_irq(sch->lock);
+	} while (ret == -EBUSY);
+}
+
+static int eadm_subchannel_remove(struct subchannel *sch)
+{
+	struct eadm_private *private = get_eadm_private(sch);
+
+	spin_lock_irq(&list_lock);
+	list_del(&private->head);
+	spin_unlock_irq(&list_lock);
+
+	eadm_quiesce(sch);
+
+	spin_lock_irq(sch->lock);
+	set_eadm_private(sch, NULL);
+	spin_unlock_irq(sch->lock);
+
+	kfree(private);
+
+	return 0;
+}
+
+static void eadm_subchannel_shutdown(struct subchannel *sch)
+{
+	eadm_quiesce(sch);
+}
+
+static int eadm_subchannel_freeze(struct subchannel *sch)
+{
+	return cio_disable_subchannel(sch);
+}
+
+static int eadm_subchannel_restore(struct subchannel *sch)
+{
+	return cio_enable_subchannel(sch, (u32)(unsigned long)sch);
+}
+
+/**
+ * eadm_subchannel_sch_event - process subchannel event
+ * @sch: subchannel
+ * @process: non-zero if function is called in process context
+ *
+ * An unspecified event occurred for this subchannel. Adjust data according
+ * to the current operational state of the subchannel. Return zero when the
+ * event has been handled sufficiently or -EAGAIN when this function should
+ * be called again in process context.
+ */
+static int eadm_subchannel_sch_event(struct subchannel *sch, int process)
+{
+	struct eadm_private *private;
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(sch->lock, flags);
+	if (!device_is_registered(&sch->dev))
+		goto out_unlock;
+
+	if (work_pending(&sch->todo_work))
+		goto out_unlock;
+
+	if (cio_update_schib(sch)) {
+		css_sched_sch_todo(sch, SCH_TODO_UNREG);
+		goto out_unlock;
+	}
+	private = get_eadm_private(sch);
+	if (private->state == EADM_NOT_OPER)
+		private->state = EADM_IDLE;
+
+out_unlock:
+	spin_unlock_irqrestore(sch->lock, flags);
+
+	return ret;
+}
+
+static struct css_device_id eadm_subchannel_ids[] = {
+	{ .match_flags = 0x1, .type = SUBCHANNEL_TYPE_ADM, },
+	{ /* end of list */ },
+};
+MODULE_DEVICE_TABLE(css, eadm_subchannel_ids);
+
+static struct css_driver eadm_subchannel_driver = {
+	.drv = {
+		.name = "eadm_subchannel",
+		.owner = THIS_MODULE,
+	},
+	.subchannel_type = eadm_subchannel_ids,
+	.irq = eadm_subchannel_irq,
+	.probe = eadm_subchannel_probe,
+	.remove = eadm_subchannel_remove,
+	.shutdown = eadm_subchannel_shutdown,
+	.sch_event = eadm_subchannel_sch_event,
+	.freeze = eadm_subchannel_freeze,
+	.thaw = eadm_subchannel_restore,
+	.restore = eadm_subchannel_restore,
+};
+
+static struct eadm_ops eadm_ops = {
+	.eadm_start = eadm_start_aob,
+	.owner = THIS_MODULE,
+};
+
+static int __init eadm_sch_init(void)
+{
+	int ret;
+
+	if (!css_general_characteristics.eadm)
+		return -ENXIO;
+
+	eadm_debug = debug_register("eadm_log", 16, 1, 16);
+	if (!eadm_debug)
+		return -ENOMEM;
+
+	debug_register_view(eadm_debug, &debug_hex_ascii_view);
+	debug_set_level(eadm_debug, 2);
+
+	isc_register(EADM_SCH_ISC);
+	ret = css_driver_register(&eadm_subchannel_driver);
+	if (ret)
+		goto cleanup;
+
+	register_eadm_ops(&eadm_ops);
+	return ret;
+
+cleanup:
+	isc_unregister(EADM_SCH_ISC);
+	debug_unregister(eadm_debug);
+	return ret;
+}
+
+static void __exit eadm_sch_exit(void)
+{
+	unregister_eadm_ops(&eadm_ops);
+	css_driver_unregister(&eadm_subchannel_driver);
+	isc_unregister(EADM_SCH_ISC);
+	debug_unregister(eadm_debug);
+}
+module_init(eadm_sch_init);
+module_exit(eadm_sch_exit);
diff --git a/drivers/s390/cio/eadm_sch.h b/drivers/s390/cio/eadm_sch.h
new file mode 100644
index 00000000000..2779be09398
--- /dev/null
+++ b/drivers/s390/cio/eadm_sch.h
@@ -0,0 +1,20 @@
+#ifndef EADM_SCH_H
+#define EADM_SCH_H
+
+#include <linux/device.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include "orb.h"
+
+struct eadm_private {
+	union orb orb;
+	enum {EADM_IDLE, EADM_BUSY, EADM_NOT_OPER} state;
+	struct timer_list timer;
+	struct list_head head;
+	struct subchannel *sch;
+} __aligned(8);
+
+#define get_eadm_private(n) ((struct eadm_private *)dev_get_drvdata(&n->dev))
+#define set_eadm_private(n, p) (dev_set_drvdata(&n->dev, p))
+
+#endif
diff --git a/drivers/s390/cio/orb.h b/drivers/s390/cio/orb.h
index 45a9865c2b3..7a640530e7f 100644
--- a/drivers/s390/cio/orb.h
+++ b/drivers/s390/cio/orb.h
@@ -59,9 +59,33 @@ struct tm_orb {
 	u32:32;
 }  __packed __aligned(4);
 
+/*
+ * eadm operation request block
+ */
+struct eadm_orb {
+	u32 intparm;
+	u32 key:4;
+	u32:4;
+	u32 compat1:1;
+	u32 compat2:1;
+	u32:21;
+	u32 x:1;
+	u32 aob;
+	u32 css_prio:8;
+	u32:8;
+	u32 scm_prio:8;
+	u32:8;
+	u32:29;
+	u32 fmt:3;
+	u32:32;
+	u32:32;
+	u32:32;
+}  __packed __aligned(4);
+
 union orb {
 	struct cmd_orb cmd;
 	struct tm_orb tm;
+	struct eadm_orb eadm;
 }  __packed __aligned(4);
 
 #endif /* S390_ORB_H */
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
index e1f646800dd..7f8b973da29 100644
--- a/drivers/s390/cio/qdio_debug.h
+++ b/drivers/s390/cio/qdio_debug.h
@@ -37,10 +37,14 @@ static inline int qdio_dbf_passes(debug_info_t *dbf_grp, int level)
 		debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
 	} while (0)
 
-#define DBF_HEX(addr, len) \
-	do { \
-		debug_event(qdio_dbf_setup, DBF_ERR, (void*)(addr), len); \
-	} while (0)
+static inline void DBF_HEX(void *addr, int len)
+{
+	while (len > 0) {
+		debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
+		len -= qdio_dbf_setup->buf_size;
+		addr += qdio_dbf_setup->buf_size;
+	}
+}
 
 #define DBF_ERROR(text...) \
 	do { \
@@ -49,11 +53,14 @@ static inline int qdio_dbf_passes(debug_info_t *dbf_grp, int level)
 		debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
 	} while (0)
 
-#define DBF_ERROR_HEX(addr, len) \
-	do { \
-		debug_event(qdio_dbf_error, DBF_ERR, (void*)(addr), len); \
-	} while (0)
-
+static inline void DBF_ERROR_HEX(void *addr, int len)
+{
+	while (len > 0) {
+		debug_event(qdio_dbf_error, DBF_ERR, addr, len);
+		len -= qdio_dbf_error->buf_size;
+		addr += qdio_dbf_error->buf_size;
+	}
+}
 
 #define DBF_DEV_EVENT(level, device, text...) \
 	do { \
@@ -64,10 +71,15 @@ static inline int qdio_dbf_passes(debug_info_t *dbf_grp, int level)
 		} \
 	} while (0)
 
-#define DBF_DEV_HEX(level, device, addr, len) \
-	do { \
-		debug_event(device->debug_area, level, (void*)(addr), len); \
-	} while (0)
+static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
+			       int len, int level)
+{
+	while (len > 0) {
+		debug_event(dev->debug_area, level, addr, len);
+		len -= dev->debug_area->buf_size;
+		addr += dev->debug_area->buf_size;
+	}
+}
 
 void qdio_allocate_dbf(struct qdio_initialize *init_data,
 		       struct qdio_irq *irq_ptr);
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
new file mode 100644
index 00000000000..bcf20f3aa51
--- /dev/null
+++ b/drivers/s390/cio/scm.c
@@ -0,0 +1,317 @@
+/*
+ * Recognize and maintain s390 storage class memory.
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <asm/eadm.h>
+#include "chsc.h"
+
+static struct device *scm_root;
+static struct eadm_ops *eadm_ops;
+static DEFINE_MUTEX(eadm_ops_mutex);
+
+#define to_scm_dev(n) container_of(n, struct scm_device, dev)
+#define	to_scm_drv(d) container_of(d, struct scm_driver, drv)
+
+static int scmdev_probe(struct device *dev)
+{
+	struct scm_device *scmdev = to_scm_dev(dev);
+	struct scm_driver *scmdrv = to_scm_drv(dev->driver);
+
+	return scmdrv->probe ? scmdrv->probe(scmdev) : -ENODEV;
+}
+
+static int scmdev_remove(struct device *dev)
+{
+	struct scm_device *scmdev = to_scm_dev(dev);
+	struct scm_driver *scmdrv = to_scm_drv(dev->driver);
+
+	return scmdrv->remove ? scmdrv->remove(scmdev) : -ENODEV;
+}
+
+static int scmdev_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	return add_uevent_var(env, "MODALIAS=scm:scmdev");
+}
+
+static struct bus_type scm_bus_type = {
+	.name  = "scm",
+	.probe = scmdev_probe,
+	.remove = scmdev_remove,
+	.uevent = scmdev_uevent,
+};
+
+/**
+ * scm_driver_register() - register a scm driver
+ * @scmdrv: driver to be registered
+ */
+int scm_driver_register(struct scm_driver *scmdrv)
+{
+	struct device_driver *drv = &scmdrv->drv;
+
+	drv->bus = &scm_bus_type;
+
+	return driver_register(drv);
+}
+EXPORT_SYMBOL_GPL(scm_driver_register);
+
+/**
+ * scm_driver_unregister() - deregister a scm driver
+ * @scmdrv: driver to be deregistered
+ */
+void scm_driver_unregister(struct scm_driver *scmdrv)
+{
+	driver_unregister(&scmdrv->drv);
+}
+EXPORT_SYMBOL_GPL(scm_driver_unregister);
+
+int scm_get_ref(void)
+{
+	int ret = 0;
+
+	mutex_lock(&eadm_ops_mutex);
+	if (!eadm_ops || !try_module_get(eadm_ops->owner))
+		ret = -ENOENT;
+	mutex_unlock(&eadm_ops_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(scm_get_ref);
+
+void scm_put_ref(void)
+{
+	mutex_lock(&eadm_ops_mutex);
+	module_put(eadm_ops->owner);
+	mutex_unlock(&eadm_ops_mutex);
+}
+EXPORT_SYMBOL_GPL(scm_put_ref);
+
+void register_eadm_ops(struct eadm_ops *ops)
+{
+	mutex_lock(&eadm_ops_mutex);
+	eadm_ops = ops;
+	mutex_unlock(&eadm_ops_mutex);
+}
+EXPORT_SYMBOL_GPL(register_eadm_ops);
+
+void unregister_eadm_ops(struct eadm_ops *ops)
+{
+	mutex_lock(&eadm_ops_mutex);
+	eadm_ops = NULL;
+	mutex_unlock(&eadm_ops_mutex);
+}
+EXPORT_SYMBOL_GPL(unregister_eadm_ops);
+
+int scm_start_aob(struct aob *aob)
+{
+	return eadm_ops->eadm_start(aob);
+}
+EXPORT_SYMBOL_GPL(scm_start_aob);
+
+void scm_irq_handler(struct aob *aob, int error)
+{
+	struct aob_rq_header *aobrq = (void *) aob->request.data;
+	struct scm_device *scmdev = aobrq->scmdev;
+	struct scm_driver *scmdrv = to_scm_drv(scmdev->dev.driver);
+
+	scmdrv->handler(scmdev, aobrq->data, error);
+}
+EXPORT_SYMBOL_GPL(scm_irq_handler);
+
+#define scm_attr(name)							\
+static ssize_t show_##name(struct device *dev,				\
+	       struct device_attribute *attr, char *buf)		\
+{									\
+	struct scm_device *scmdev = to_scm_dev(dev);			\
+	int ret;							\
+									\
+	device_lock(dev);						\
+	ret = sprintf(buf, "%u\n", scmdev->attrs.name);			\
+	device_unlock(dev);						\
+									\
+	return ret;							\
+}									\
+static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
+
+scm_attr(persistence);
+scm_attr(oper_state);
+scm_attr(data_state);
+scm_attr(rank);
+scm_attr(release);
+scm_attr(res_id);
+
+static struct attribute *scmdev_attrs[] = {
+	&dev_attr_persistence.attr,
+	&dev_attr_oper_state.attr,
+	&dev_attr_data_state.attr,
+	&dev_attr_rank.attr,
+	&dev_attr_release.attr,
+	&dev_attr_res_id.attr,
+	NULL,
+};
+
+static struct attribute_group scmdev_attr_group = {
+	.attrs = scmdev_attrs,
+};
+
+static const struct attribute_group *scmdev_attr_groups[] = {
+	&scmdev_attr_group,
+	NULL,
+};
+
+static void scmdev_release(struct device *dev)
+{
+	struct scm_device *scmdev = to_scm_dev(dev);
+
+	kfree(scmdev);
+}
+
+static void scmdev_setup(struct scm_device *scmdev, struct sale *sale,
+			 unsigned int size, unsigned int max_blk_count)
+{
+	dev_set_name(&scmdev->dev, "%016llx", (unsigned long long) sale->sa);
+	scmdev->nr_max_block = max_blk_count;
+	scmdev->address = sale->sa;
+	scmdev->size = 1UL << size;
+	scmdev->attrs.rank = sale->rank;
+	scmdev->attrs.persistence = sale->p;
+	scmdev->attrs.oper_state = sale->op_state;
+	scmdev->attrs.data_state = sale->data_state;
+	scmdev->attrs.rank = sale->rank;
+	scmdev->attrs.release = sale->r;
+	scmdev->attrs.res_id = sale->rid;
+	scmdev->dev.parent = scm_root;
+	scmdev->dev.bus = &scm_bus_type;
+	scmdev->dev.release = scmdev_release;
+	scmdev->dev.groups = scmdev_attr_groups;
+}
+
+/*
+ * Check for state-changes, notify the driver and userspace.
+ */
+static void scmdev_update(struct scm_device *scmdev, struct sale *sale)
+{
+	struct scm_driver *scmdrv;
+	bool changed;
+
+	device_lock(&scmdev->dev);
+	changed = scmdev->attrs.rank != sale->rank ||
+		  scmdev->attrs.oper_state != sale->op_state;
+	scmdev->attrs.rank = sale->rank;
+	scmdev->attrs.oper_state = sale->op_state;
+	if (!scmdev->dev.driver)
+		goto out;
+	scmdrv = to_scm_drv(scmdev->dev.driver);
+	if (changed && scmdrv->notify)
+		scmdrv->notify(scmdev);
+out:
+	device_unlock(&scmdev->dev);
+	if (changed)
+		kobject_uevent(&scmdev->dev.kobj, KOBJ_CHANGE);
+}
+
+static int check_address(struct device *dev, void *data)
+{
+	struct scm_device *scmdev = to_scm_dev(dev);
+	struct sale *sale = data;
+
+	return scmdev->address == sale->sa;
+}
+
+static struct scm_device *scmdev_find(struct sale *sale)
+{
+	struct device *dev;
+
+	dev = bus_find_device(&scm_bus_type, NULL, sale, check_address);
+
+	return dev ? to_scm_dev(dev) : NULL;
+}
+
+static int scm_add(struct chsc_scm_info *scm_info, size_t num)
+{
+	struct sale *sale, *scmal = scm_info->scmal;
+	struct scm_device *scmdev;
+	int ret;
+
+	for (sale = scmal; sale < scmal + num; sale++) {
+		scmdev = scmdev_find(sale);
+		if (scmdev) {
+			scmdev_update(scmdev, sale);
+			/* Release reference from scm_find(). */
+			put_device(&scmdev->dev);
+			continue;
+		}
+		scmdev = kzalloc(sizeof(*scmdev), GFP_KERNEL);
+		if (!scmdev)
+			return -ENODEV;
+		scmdev_setup(scmdev, sale, scm_info->is, scm_info->mbc);
+		ret = device_register(&scmdev->dev);
+		if (ret) {
+			/* Release reference from device_initialize(). */
+			put_device(&scmdev->dev);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+int scm_update_information(void)
+{
+	struct chsc_scm_info *scm_info;
+	u64 token = 0;
+	size_t num;
+	int ret;
+
+	scm_info = (void *)__get_free_page(GFP_KERNEL | GFP_DMA);
+	if (!scm_info)
+		return -ENOMEM;
+
+	do {
+		ret = chsc_scm_info(scm_info, token);
+		if (ret)
+			break;
+
+		num = (scm_info->response.length -
+		       (offsetof(struct chsc_scm_info, scmal) -
+			offsetof(struct chsc_scm_info, response))
+		      ) / sizeof(struct sale);
+
+		ret = scm_add(scm_info, num);
+		if (ret)
+			break;
+
+		token = scm_info->restok;
+	} while (token);
+
+	free_page((unsigned long)scm_info);
+
+	return ret;
+}
+
+static int __init scm_init(void)
+{
+	int ret;
+
+	ret = bus_register(&scm_bus_type);
+	if (ret)
+		return ret;
+
+	scm_root = root_device_register("scm");
+	if (IS_ERR(scm_root)) {
+		bus_unregister(&scm_bus_type);
+		return PTR_ERR(scm_root);
+	}
+
+	scm_update_information();
+	return 0;
+}
+subsys_initcall_sync(scm_init);
diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile
index af3c7f16ea8..771faf7094d 100644
--- a/drivers/s390/crypto/Makefile
+++ b/drivers/s390/crypto/Makefile
@@ -4,4 +4,5 @@
 
 ap-objs := ap_bus.o
 obj-$(CONFIG_ZCRYPT) += ap.o zcrypt_api.o zcrypt_pcicc.o zcrypt_pcixcc.o
-obj-$(CONFIG_ZCRYPT) += zcrypt_pcica.o zcrypt_cex2a.o
+obj-$(CONFIG_ZCRYPT) += zcrypt_pcica.o zcrypt_cex2a.o zcrypt_cex4.o
+obj-$(CONFIG_ZCRYPT) += zcrypt_msgtype6.o zcrypt_msgtype50.o
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index ae258a4b4e5..7b865a7300e 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1,5 +1,5 @@
 /*
- * Copyright IBM Corp. 2006
+ * Copyright IBM Corp. 2006, 2012
  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
  *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  *	      Ralph Wuerthner <rwuerthn@de.ibm.com>
@@ -62,13 +62,14 @@ static void ap_interrupt_handler(void *unused1, void *unused2);
 static void ap_reset(struct ap_device *ap_dev);
 static void ap_config_timeout(unsigned long ptr);
 static int ap_select_domain(void);
+static void ap_query_configuration(void);
 
 /*
  * Module description.
  */
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("Adjunct Processor Bus driver, "
-		   "Copyright IBM Corp. 2006");
+MODULE_DESCRIPTION("Adjunct Processor Bus driver, " \
+		   "Copyright IBM Corp. 2006, 2012");
 MODULE_LICENSE("GPL");
 
 /*
@@ -84,6 +85,7 @@ module_param_named(poll_thread, ap_thread_flag, int, 0000);
 MODULE_PARM_DESC(poll_thread, "Turn on/off poll thread, default is 0 (off).");
 
 static struct device *ap_root_device = NULL;
+static struct ap_config_info *ap_configuration;
 static DEFINE_SPINLOCK(ap_device_list_lock);
 static LIST_HEAD(ap_device_list);
 
@@ -158,6 +160,19 @@ static int ap_interrupts_available(void)
 }
 
 /**
+ * ap_configuration_available(): Test if AP configuration
+ * information is available.
+ *
+ * Returns 1 if AP configuration information is available.
+ */
+#ifdef CONFIG_64BIT
+static int ap_configuration_available(void)
+{
+	return test_facility(2) && test_facility(12);
+}
+#endif
+
+/**
  * ap_test_queue(): Test adjunct processor queue.
  * @qid: The AP queue number
  * @queue_depth: Pointer to queue depth value
@@ -242,6 +257,26 @@ __ap_query_functions(ap_qid_t qid, unsigned int *functions)
 }
 #endif
 
+#ifdef CONFIG_64BIT
+static inline int __ap_query_configuration(struct ap_config_info *config)
+{
+	register unsigned long reg0 asm ("0") = 0x04000000UL;
+	register unsigned long reg1 asm ("1") = -EINVAL;
+	register unsigned char *reg2 asm ("2") = (unsigned char *)config;
+
+	asm volatile(
+		".long 0xb2af0000\n"		/* PQAP(QCI) */
+		"0: la    %1,0\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (reg0), "+d" (reg1), "+d" (reg2)
+		:
+		: "cc");
+
+	return reg1;
+}
+#endif
+
 /**
  * ap_query_functions(): Query supported functions.
  * @qid: The AP queue number
@@ -292,25 +327,6 @@ static int ap_query_functions(ap_qid_t qid, unsigned int *functions)
 }
 
 /**
- * ap_4096_commands_availablen(): Check for availability of 4096 bit RSA
- * support.
- * @qid: The AP queue number
- *
- * Returns 1 if 4096 bit RSA keys are support fo the AP, returns 0 if not.
- */
-int ap_4096_commands_available(ap_qid_t qid)
-{
-	unsigned int functions;
-
-	if (ap_query_functions(qid, &functions))
-		return 0;
-
-	return test_ap_facility(functions, 1) &&
-	       test_ap_facility(functions, 2);
-}
-EXPORT_SYMBOL(ap_4096_commands_available);
-
-/**
  * ap_queue_enable_interruption(): Enable interruption on an AP.
  * @qid: The AP queue number
  * @ind: the notification indicator byte
@@ -657,6 +673,34 @@ static ssize_t ap_request_count_show(struct device *dev,
 
 static DEVICE_ATTR(request_count, 0444, ap_request_count_show, NULL);
 
+static ssize_t ap_requestq_count_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc;
+
+	spin_lock_bh(&ap_dev->lock);
+	rc = snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->requestq_count);
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(requestq_count, 0444, ap_requestq_count_show, NULL);
+
+static ssize_t ap_pendingq_count_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	int rc;
+
+	spin_lock_bh(&ap_dev->lock);
+	rc = snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->pendingq_count);
+	spin_unlock_bh(&ap_dev->lock);
+	return rc;
+}
+
+static DEVICE_ATTR(pendingq_count, 0444, ap_pendingq_count_show, NULL);
+
 static ssize_t ap_modalias_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
@@ -665,11 +709,23 @@ static ssize_t ap_modalias_show(struct device *dev,
 
 static DEVICE_ATTR(modalias, 0444, ap_modalias_show, NULL);
 
+static ssize_t ap_functions_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct ap_device *ap_dev = to_ap_dev(dev);
+	return snprintf(buf, PAGE_SIZE, "0x%08X\n", ap_dev->functions);
+}
+
+static DEVICE_ATTR(ap_functions, 0444, ap_functions_show, NULL);
+
 static struct attribute *ap_dev_attrs[] = {
 	&dev_attr_hwtype.attr,
 	&dev_attr_depth.attr,
 	&dev_attr_request_count.attr,
+	&dev_attr_requestq_count.attr,
+	&dev_attr_pendingq_count.attr,
 	&dev_attr_modalias.attr,
+	&dev_attr_ap_functions.attr,
 	NULL
 };
 static struct attribute_group ap_dev_attr_group = {
@@ -772,6 +828,7 @@ static int ap_bus_resume(struct device *dev)
 		ap_suspend_flag = 0;
 		if (!ap_interrupts_available())
 			ap_interrupt_indicator = NULL;
+		ap_query_configuration();
 		if (!user_set_domain) {
 			ap_domain_index = -1;
 			ap_select_domain();
@@ -895,6 +952,20 @@ void ap_driver_unregister(struct ap_driver *ap_drv)
 }
 EXPORT_SYMBOL(ap_driver_unregister);
 
+void ap_bus_force_rescan(void)
+{
+	/* Delete the AP bus rescan timer. */
+	del_timer(&ap_config_timer);
+
+	/* processing a synchonuous bus rescan */
+	ap_scan_bus(NULL);
+
+	/* Setup the AP bus rescan timer again. */
+	ap_config_timer.expires = jiffies + ap_config_time * HZ;
+	add_timer(&ap_config_timer);
+}
+EXPORT_SYMBOL(ap_bus_force_rescan);
+
 /*
  * AP bus attributes.
  */
@@ -997,6 +1068,65 @@ static struct bus_attribute *const ap_bus_attrs[] = {
 	NULL,
 };
 
+static inline int ap_test_config(unsigned int *field, unsigned int nr)
+{
+	if (nr > 0xFFu)
+		return 0;
+	return ap_test_bit((field + (nr >> 5)), (nr & 0x1f));
+}
+
+/*
+ * ap_test_config_card_id(): Test, whether an AP card ID is configured.
+ * @id AP card ID
+ *
+ * Returns 0 if the card is not configured
+ *	   1 if the card is configured or
+ *	     if the configuration information is not available
+ */
+static inline int ap_test_config_card_id(unsigned int id)
+{
+	if (!ap_configuration)
+		return 1;
+	return ap_test_config(ap_configuration->apm, id);
+}
+
+/*
+ * ap_test_config_domain(): Test, whether an AP usage domain is configured.
+ * @domain AP usage domain ID
+ *
+ * Returns 0 if the usage domain is not configured
+ *	   1 if the usage domain is configured or
+ *	     if the configuration information is not available
+ */
+static inline int ap_test_config_domain(unsigned int domain)
+{
+	if (!ap_configuration)
+		return 1;
+	return ap_test_config(ap_configuration->aqm, domain);
+}
+
+/**
+ * ap_query_configuration(): Query AP configuration information.
+ *
+ * Query information of installed cards and configured domains from AP.
+ */
+static void ap_query_configuration(void)
+{
+#ifdef CONFIG_64BIT
+	if (ap_configuration_available()) {
+		if (!ap_configuration)
+			ap_configuration =
+				kzalloc(sizeof(struct ap_config_info),
+					GFP_KERNEL);
+		if (ap_configuration)
+			__ap_query_configuration(ap_configuration);
+	} else
+		ap_configuration = NULL;
+#else
+	ap_configuration = NULL;
+#endif
+}
+
 /**
  * ap_select_domain(): Select an AP domain.
  *
@@ -1005,6 +1135,7 @@ static struct bus_attribute *const ap_bus_attrs[] = {
 static int ap_select_domain(void)
 {
 	int queue_depth, device_type, count, max_count, best_domain;
+	ap_qid_t qid;
 	int rc, i, j;
 
 	/*
@@ -1018,9 +1149,13 @@ static int ap_select_domain(void)
 	best_domain = -1;
 	max_count = 0;
 	for (i = 0; i < AP_DOMAINS; i++) {
+		if (!ap_test_config_domain(i))
+			continue;
 		count = 0;
 		for (j = 0; j < AP_DEVICES; j++) {
-			ap_qid_t qid = AP_MKQID(j, i);
+			if (!ap_test_config_card_id(j))
+				continue;
+			qid = AP_MKQID(j, i);
 			rc = ap_query_queue(qid, &queue_depth, &device_type);
 			if (rc)
 				continue;
@@ -1169,6 +1304,7 @@ static void ap_scan_bus(struct work_struct *unused)
 	unsigned int device_functions;
 	int rc, i;
 
+	ap_query_configuration();
 	if (ap_select_domain() != 0)
 		return;
 	for (i = 0; i < AP_DEVICES; i++) {
@@ -1176,7 +1312,10 @@ static void ap_scan_bus(struct work_struct *unused)
 		dev = bus_find_device(&ap_bus_type, NULL,
 				      (void *)(unsigned long)qid,
 				      __ap_scan_bus);
-		rc = ap_query_queue(qid, &queue_depth, &device_type);
+		if (ap_test_config_card_id(i))
+			rc = ap_query_queue(qid, &queue_depth, &device_type);
+		else
+			rc = -ENODEV;
 		if (dev) {
 			if (rc == -EBUSY) {
 				set_current_state(TASK_UNINTERRUPTIBLE);
@@ -1217,29 +1356,22 @@ static void ap_scan_bus(struct work_struct *unused)
 			    (unsigned long) ap_dev);
 		switch (device_type) {
 		case 0:
+			/* device type probing for old cards */
 			if (ap_probe_device_type(ap_dev)) {
 				kfree(ap_dev);
 				continue;
 			}
 			break;
-		case 10:
-			if (ap_query_functions(qid, &device_functions)) {
-				kfree(ap_dev);
-				continue;
-			}
-			if (test_ap_facility(device_functions, 3))
-				ap_dev->device_type = AP_DEVICE_TYPE_CEX3C;
-			else if (test_ap_facility(device_functions, 4))
-				ap_dev->device_type = AP_DEVICE_TYPE_CEX3A;
-			else {
-				kfree(ap_dev);
-				continue;
-			}
-			break;
 		default:
 			ap_dev->device_type = device_type;
 		}
 
+		rc = ap_query_functions(qid, &device_functions);
+		if (!rc)
+			ap_dev->functions = device_functions;
+		else
+			ap_dev->functions = 0u;
+
 		ap_dev->device.bus = &ap_bus_type;
 		ap_dev->device.parent = ap_root_device;
 		if (dev_set_name(&ap_dev->device, "card%02x",
@@ -1785,6 +1917,7 @@ int __init ap_module_init(void)
 		goto out_root;
 	}
 
+	ap_query_configuration();
 	if (ap_select_domain() == 0)
 		ap_scan_bus(NULL);
 
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 52d61995af8..685f6cc022f 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -1,5 +1,5 @@
 /*
- * Copyright IBM Corp. 2006
+ * Copyright IBM Corp. 2006, 2012
  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
  *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  *	      Ralph Wuerthner <rwuerthn@de.ibm.com>
@@ -83,13 +83,12 @@ int ap_queue_status_invalid_test(struct ap_queue_status *status)
 	return !(memcmp(status, &invalid, sizeof(struct ap_queue_status)));
 }
 
-#define MAX_AP_FACILITY 31
-
-static inline int test_ap_facility(unsigned int function, unsigned int nr)
+#define AP_MAX_BITS 31
+static inline int ap_test_bit(unsigned int *ptr, unsigned int nr)
 {
-	if (nr > MAX_AP_FACILITY)
+	if (nr > AP_MAX_BITS)
 		return 0;
-	return function & (unsigned int)(0x80000000 >> nr);
+	return (*ptr & (0x80000000u >> nr)) != 0;
 }
 
 #define AP_RESPONSE_NORMAL		0x00
@@ -117,6 +116,15 @@ static inline int test_ap_facility(unsigned int function, unsigned int nr)
 #define AP_DEVICE_TYPE_CEX2C	7
 #define AP_DEVICE_TYPE_CEX3A	8
 #define AP_DEVICE_TYPE_CEX3C	9
+#define AP_DEVICE_TYPE_CEX4	10
+
+/*
+ * Known function facilities
+ */
+#define AP_FUNC_MEX4K 1
+#define AP_FUNC_CRT4K 2
+#define AP_FUNC_COPRO 3
+#define AP_FUNC_ACCEL 4
 
 /*
  * AP reset flag states
@@ -151,6 +159,7 @@ struct ap_device {
 	ap_qid_t qid;			/* AP queue id. */
 	int queue_depth;		/* AP queue depth.*/
 	int device_type;		/* AP device type. */
+	unsigned int functions;		/* AP device function bitfield. */
 	int unregistered;		/* marks AP device as unregistered */
 	struct timer_list timeout;	/* Timer for request timeouts. */
 	int reset;			/* Reset required after req. timeout. */
@@ -183,6 +192,17 @@ struct ap_message {
 			struct ap_message *);
 };
 
+struct ap_config_info {
+	unsigned int special_command:1;
+	unsigned int ap_extended:1;
+	unsigned char reserved1:6;
+	unsigned char reserved2[15];
+	unsigned int apm[8];		/* AP ID mask */
+	unsigned int aqm[8];		/* AP queue mask */
+	unsigned int adm[8];		/* AP domain mask */
+	unsigned char reserved4[16];
+} __packed;
+
 #define AP_DEVICE(dt)					\
 	.dev_type=(dt),					\
 	.match_flags=AP_DEVICE_ID_MATCH_DEVICE_TYPE,
@@ -211,10 +231,9 @@ int ap_recv(ap_qid_t, unsigned long long *, void *, size_t);
 void ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg);
 void ap_cancel_message(struct ap_device *ap_dev, struct ap_message *ap_msg);
 void ap_flush_queue(struct ap_device *ap_dev);
+void ap_bus_force_rescan(void);
 
 int ap_module_init(void);
 void ap_module_exit(void);
 
-int ap_4096_commands_available(ap_qid_t qid);
-
 #endif /* _AP_BUS_H_ */
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 2f94132246a..31cfaa55607 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -1,7 +1,7 @@
 /*
  *  zcrypt 2.1.0
  *
- *  Copyright IBM Corp. 2001, 2006
+ *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *	       Cornelia Huck <cornelia.huck@de.ibm.com>
@@ -9,6 +9,7 @@
  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
  *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -37,25 +38,39 @@
 #include <linux/atomic.h>
 #include <asm/uaccess.h>
 #include <linux/hw_random.h>
+#include <linux/debugfs.h>
+#include <asm/debug.h>
 
+#include "zcrypt_debug.h"
 #include "zcrypt_api.h"
 
 /*
  * Module description.
  */
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("Cryptographic Coprocessor interface, "
-		   "Copyright IBM Corp. 2001, 2006");
+MODULE_DESCRIPTION("Cryptographic Coprocessor interface, " \
+		   "Copyright IBM Corp. 2001, 2012");
 MODULE_LICENSE("GPL");
 
 static DEFINE_SPINLOCK(zcrypt_device_lock);
 static LIST_HEAD(zcrypt_device_list);
 static int zcrypt_device_count = 0;
 static atomic_t zcrypt_open_count = ATOMIC_INIT(0);
+static atomic_t zcrypt_rescan_count = ATOMIC_INIT(0);
+
+atomic_t zcrypt_rescan_req = ATOMIC_INIT(0);
+EXPORT_SYMBOL(zcrypt_rescan_req);
 
 static int zcrypt_rng_device_add(void);
 static void zcrypt_rng_device_remove(void);
 
+static DEFINE_SPINLOCK(zcrypt_ops_list_lock);
+static LIST_HEAD(zcrypt_ops_list);
+
+static debug_info_t *zcrypt_dbf_common;
+static debug_info_t *zcrypt_dbf_devices;
+static struct dentry *debugfs_root;
+
 /*
  * Device attributes common for all crypto devices.
  */
@@ -85,6 +100,8 @@ static ssize_t zcrypt_online_store(struct device *dev,
 	if (sscanf(buf, "%d\n", &online) != 1 || online < 0 || online > 1)
 		return -EINVAL;
 	zdev->online = online;
+	ZCRYPT_DBF_DEV(DBF_INFO, zdev, "dev%04xo%dman", zdev->ap_dev->qid,
+		       zdev->online);
 	if (!online)
 		ap_flush_queue(zdev->ap_dev);
 	return count;
@@ -103,6 +120,24 @@ static struct attribute_group zcrypt_device_attr_group = {
 };
 
 /**
+ * Process a rescan of the transport layer.
+ *
+ * Returns 1, if the rescan has been processed, otherwise 0.
+ */
+static inline int zcrypt_process_rescan(void)
+{
+	if (atomic_read(&zcrypt_rescan_req)) {
+		atomic_set(&zcrypt_rescan_req, 0);
+		atomic_inc(&zcrypt_rescan_count);
+		ap_bus_force_rescan();
+		ZCRYPT_DBF_COMMON(DBF_INFO, "rescan%07d",
+				  atomic_inc_return(&zcrypt_rescan_count));
+		return 1;
+	}
+	return 0;
+}
+
+/**
  * __zcrypt_increase_preference(): Increase preference of a crypto device.
  * @zdev: Pointer the crypto device
  *
@@ -190,6 +225,7 @@ struct zcrypt_device *zcrypt_device_alloc(size_t max_response_size)
 	zdev->reply.length = max_response_size;
 	spin_lock_init(&zdev->lock);
 	INIT_LIST_HEAD(&zdev->list);
+	zdev->dbf_area = zcrypt_dbf_devices;
 	return zdev;
 
 out_free:
@@ -215,6 +251,8 @@ int zcrypt_device_register(struct zcrypt_device *zdev)
 {
 	int rc;
 
+	if (!zdev->ops)
+		return -ENODEV;
 	rc = sysfs_create_group(&zdev->ap_dev->device.kobj,
 				&zcrypt_device_attr_group);
 	if (rc)
@@ -223,6 +261,8 @@ int zcrypt_device_register(struct zcrypt_device *zdev)
 	kref_init(&zdev->refcount);
 	spin_lock_bh(&zcrypt_device_lock);
 	zdev->online = 1;	/* New devices are online by default. */
+	ZCRYPT_DBF_DEV(DBF_INFO, zdev, "dev%04xo%dreg", zdev->ap_dev->qid,
+		       zdev->online);
 	list_add_tail(&zdev->list, &zcrypt_device_list);
 	__zcrypt_increase_preference(zdev);
 	zcrypt_device_count++;
@@ -269,6 +309,67 @@ void zcrypt_device_unregister(struct zcrypt_device *zdev)
 }
 EXPORT_SYMBOL(zcrypt_device_unregister);
 
+void zcrypt_msgtype_register(struct zcrypt_ops *zops)
+{
+	if (zops->owner) {
+		spin_lock_bh(&zcrypt_ops_list_lock);
+		list_add_tail(&zops->list, &zcrypt_ops_list);
+		spin_unlock_bh(&zcrypt_ops_list_lock);
+	}
+}
+EXPORT_SYMBOL(zcrypt_msgtype_register);
+
+void zcrypt_msgtype_unregister(struct zcrypt_ops *zops)
+{
+	spin_lock_bh(&zcrypt_ops_list_lock);
+	list_del_init(&zops->list);
+	spin_unlock_bh(&zcrypt_ops_list_lock);
+}
+EXPORT_SYMBOL(zcrypt_msgtype_unregister);
+
+static inline
+struct zcrypt_ops *__ops_lookup(unsigned char *name, int variant)
+{
+	struct zcrypt_ops *zops;
+	int found = 0;
+
+	spin_lock_bh(&zcrypt_ops_list_lock);
+	list_for_each_entry(zops, &zcrypt_ops_list, list) {
+		if ((zops->variant == variant) &&
+		    (!strncmp(zops->owner->name, name, MODULE_NAME_LEN))) {
+			found = 1;
+			break;
+		}
+	}
+	spin_unlock_bh(&zcrypt_ops_list_lock);
+
+	if (!found)
+		return NULL;
+	return zops;
+}
+
+struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *name, int variant)
+{
+	struct zcrypt_ops *zops = NULL;
+
+	zops = __ops_lookup(name, variant);
+	if (!zops) {
+		request_module(name);
+		zops = __ops_lookup(name, variant);
+	}
+	if ((!zops) || (!try_module_get(zops->owner)))
+		return NULL;
+	return zops;
+}
+EXPORT_SYMBOL(zcrypt_msgtype_request);
+
+void zcrypt_msgtype_release(struct zcrypt_ops *zops)
+{
+	if (zops)
+		module_put(zops->owner);
+}
+EXPORT_SYMBOL(zcrypt_msgtype_release);
+
 /**
  * zcrypt_read (): Not supported beyond zcrypt 1.3.1.
  *
@@ -640,6 +741,11 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
 		do {
 			rc = zcrypt_rsa_modexpo(&mex);
 		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_rsa_modexpo(&mex);
+			} while (rc == -EAGAIN);
 		if (rc)
 			return rc;
 		return put_user(mex.outputdatalength, &umex->outputdatalength);
@@ -652,6 +758,11 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
 		do {
 			rc = zcrypt_rsa_crt(&crt);
 		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_rsa_crt(&crt);
+			} while (rc == -EAGAIN);
 		if (rc)
 			return rc;
 		return put_user(crt.outputdatalength, &ucrt->outputdatalength);
@@ -664,6 +775,11 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
 		do {
 			rc = zcrypt_send_cprb(&xcRB);
 		} while (rc == -EAGAIN);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			do {
+				rc = zcrypt_send_cprb(&xcRB);
+			} while (rc == -EAGAIN);
 		if (copy_to_user(uxcRB, &xcRB, sizeof(xcRB)))
 			return -EFAULT;
 		return rc;
@@ -770,10 +886,15 @@ static long trans_modexpo32(struct file *filp, unsigned int cmd,
 	do {
 		rc = zcrypt_rsa_modexpo(&mex64);
 	} while (rc == -EAGAIN);
-	if (!rc)
-		rc = put_user(mex64.outputdatalength,
-			      &umex32->outputdatalength);
-	return rc;
+	/* on failure: retry once again after a requested rescan */
+	if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+		do {
+			rc = zcrypt_rsa_modexpo(&mex64);
+		} while (rc == -EAGAIN);
+	if (rc)
+		return rc;
+	return put_user(mex64.outputdatalength,
+			&umex32->outputdatalength);
 }
 
 struct compat_ica_rsa_modexpo_crt {
@@ -810,10 +931,15 @@ static long trans_modexpo_crt32(struct file *filp, unsigned int cmd,
 	do {
 		rc = zcrypt_rsa_crt(&crt64);
 	} while (rc == -EAGAIN);
-	if (!rc)
-		rc = put_user(crt64.outputdatalength,
-			      &ucrt32->outputdatalength);
-	return rc;
+	/* on failure: retry once again after a requested rescan */
+	if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+		do {
+			rc = zcrypt_rsa_crt(&crt64);
+		} while (rc == -EAGAIN);
+	if (rc)
+		return rc;
+	return put_user(crt64.outputdatalength,
+			&ucrt32->outputdatalength);
 }
 
 struct compat_ica_xcRB {
@@ -869,6 +995,11 @@ static long trans_xcRB32(struct file *filp, unsigned int cmd,
 	do {
 		rc = zcrypt_send_cprb(&xcRB64);
 	} while (rc == -EAGAIN);
+	/* on failure: retry once again after a requested rescan */
+	if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+		do {
+			rc = zcrypt_send_cprb(&xcRB64);
+		} while (rc == -EAGAIN);
 	xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length;
 	xcRB32.reply_data_length = xcRB64.reply_data_length;
 	xcRB32.status = xcRB64.status;
@@ -1126,6 +1257,9 @@ static int zcrypt_rng_data_read(struct hwrng *rng, u32 *data)
 	 */
 	if (zcrypt_rng_buffer_index == 0) {
 		rc = zcrypt_rng((char *) zcrypt_rng_buffer);
+		/* on failure: retry once again after a requested rescan */
+		if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+			rc = zcrypt_rng((char *) zcrypt_rng_buffer);
 		if (rc < 0)
 			return -EIO;
 		zcrypt_rng_buffer_index = rc / sizeof *data;
@@ -1178,6 +1312,30 @@ static void zcrypt_rng_device_remove(void)
 	mutex_unlock(&zcrypt_rng_mutex);
 }
 
+int __init zcrypt_debug_init(void)
+{
+	debugfs_root = debugfs_create_dir("zcrypt", NULL);
+
+	zcrypt_dbf_common = debug_register("zcrypt_common", 1, 1, 16);
+	debug_register_view(zcrypt_dbf_common, &debug_hex_ascii_view);
+	debug_set_level(zcrypt_dbf_common, DBF_ERR);
+
+	zcrypt_dbf_devices = debug_register("zcrypt_devices", 1, 1, 16);
+	debug_register_view(zcrypt_dbf_devices, &debug_hex_ascii_view);
+	debug_set_level(zcrypt_dbf_devices, DBF_ERR);
+
+	return 0;
+}
+
+void zcrypt_debug_exit(void)
+{
+	debugfs_remove(debugfs_root);
+	if (zcrypt_dbf_common)
+		debug_unregister(zcrypt_dbf_common);
+	if (zcrypt_dbf_devices)
+		debug_unregister(zcrypt_dbf_devices);
+}
+
 /**
  * zcrypt_api_init(): Module initialization.
  *
@@ -1187,6 +1345,12 @@ int __init zcrypt_api_init(void)
 {
 	int rc;
 
+	rc = zcrypt_debug_init();
+	if (rc)
+		goto out;
+
+	atomic_set(&zcrypt_rescan_req, 0);
+
 	/* Register the request sprayer. */
 	rc = misc_register(&zcrypt_misc_device);
 	if (rc < 0)
@@ -1216,6 +1380,7 @@ void zcrypt_api_exit(void)
 {
 	remove_proc_entry("driver/z90crypt", NULL);
 	misc_deregister(&zcrypt_misc_device);
+	zcrypt_debug_exit();
 }
 
 module_init(zcrypt_api_init);
diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h
index 7a32c4bc8ef..89632919c99 100644
--- a/drivers/s390/crypto/zcrypt_api.h
+++ b/drivers/s390/crypto/zcrypt_api.h
@@ -1,7 +1,7 @@
 /*
  *  zcrypt 2.1.0
  *
- *  Copyright IBM Corp. 2001, 2006
+ *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *	       Cornelia Huck <cornelia.huck@de.ibm.com>
@@ -9,6 +9,7 @@
  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
  *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,8 +29,10 @@
 #ifndef _ZCRYPT_API_H_
 #define _ZCRYPT_API_H_
 
-#include "ap_bus.h"
+#include <linux/atomic.h>
+#include <asm/debug.h>
 #include <asm/zcrypt.h>
+#include "ap_bus.h"
 
 /* deprecated status calls */
 #define ICAZ90STATUS		_IOR(ZCRYPT_IOCTL_MAGIC, 0x10, struct ica_z90_status)
@@ -87,6 +90,9 @@ struct zcrypt_ops {
 				struct ica_rsa_modexpo_crt *);
 	long (*send_cprb)(struct zcrypt_device *, struct ica_xcRB *);
 	long (*rng)(struct zcrypt_device *, char *);
+	struct list_head list;		/* zcrypt ops list. */
+	struct module *owner;
+	int variant;
 };
 
 struct zcrypt_device {
@@ -108,14 +114,23 @@ struct zcrypt_device {
 
 	struct ap_message reply;	/* Per-device reply structure. */
 	int max_exp_bit_length;
+
+	debug_info_t *dbf_area;		/* debugging */
 };
 
+/* transport layer rescanning */
+extern atomic_t zcrypt_rescan_req;
+
 struct zcrypt_device *zcrypt_device_alloc(size_t);
 void zcrypt_device_free(struct zcrypt_device *);
 void zcrypt_device_get(struct zcrypt_device *);
 int zcrypt_device_put(struct zcrypt_device *);
 int zcrypt_device_register(struct zcrypt_device *);
 void zcrypt_device_unregister(struct zcrypt_device *);
+void zcrypt_msgtype_register(struct zcrypt_ops *);
+void zcrypt_msgtype_unregister(struct zcrypt_ops *);
+struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *, int);
+void zcrypt_msgtype_release(struct zcrypt_ops *);
 int zcrypt_api_init(void);
 void zcrypt_api_exit(void);
 
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c
index 744c668f586..1e849d6e1df 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.c
+++ b/drivers/s390/crypto/zcrypt_cex2a.c
@@ -1,13 +1,14 @@
 /*
  *  zcrypt 2.1.0
  *
- *  Copyright IBM Corp. 2001, 2006
+ *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *
  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
  *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -35,6 +36,7 @@
 #include "zcrypt_api.h"
 #include "zcrypt_error.h"
 #include "zcrypt_cex2a.h"
+#include "zcrypt_msgtype50.h"
 
 #define CEX2A_MIN_MOD_SIZE	  1	/*    8 bits	*/
 #define CEX2A_MAX_MOD_SIZE	256	/* 2048 bits	*/
@@ -63,14 +65,12 @@ static struct ap_device_id zcrypt_cex2a_ids[] = {
 
 MODULE_DEVICE_TABLE(ap, zcrypt_cex2a_ids);
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, "
-		   "Copyright IBM Corp. 2001, 2006");
+MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, " \
+		   "Copyright IBM Corp. 2001, 2012");
 MODULE_LICENSE("GPL");
 
 static int zcrypt_cex2a_probe(struct ap_device *ap_dev);
 static void zcrypt_cex2a_remove(struct ap_device *ap_dev);
-static void zcrypt_cex2a_receive(struct ap_device *, struct ap_message *,
-				 struct ap_message *);
 
 static struct ap_driver zcrypt_cex2a_driver = {
 	.probe = zcrypt_cex2a_probe,
@@ -80,344 +80,6 @@ static struct ap_driver zcrypt_cex2a_driver = {
 };
 
 /**
- * Convert a ICAMEX message to a type50 MEX message.
- *
- * @zdev: crypto device pointer
- * @zreq: crypto request pointer
- * @mex: pointer to user input data
- *
- * Returns 0 on success or -EFAULT.
- */
-static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_device *zdev,
-				       struct ap_message *ap_msg,
-				       struct ica_rsa_modexpo *mex)
-{
-	unsigned char *mod, *exp, *inp;
-	int mod_len;
-
-	mod_len = mex->inputdatalength;
-
-	if (mod_len <= 128) {
-		struct type50_meb1_msg *meb1 = ap_msg->message;
-		memset(meb1, 0, sizeof(*meb1));
-		ap_msg->length = sizeof(*meb1);
-		meb1->header.msg_type_code = TYPE50_TYPE_CODE;
-		meb1->header.msg_len = sizeof(*meb1);
-		meb1->keyblock_type = TYPE50_MEB1_FMT;
-		mod = meb1->modulus + sizeof(meb1->modulus) - mod_len;
-		exp = meb1->exponent + sizeof(meb1->exponent) - mod_len;
-		inp = meb1->message + sizeof(meb1->message) - mod_len;
-	} else if (mod_len <= 256) {
-		struct type50_meb2_msg *meb2 = ap_msg->message;
-		memset(meb2, 0, sizeof(*meb2));
-		ap_msg->length = sizeof(*meb2);
-		meb2->header.msg_type_code = TYPE50_TYPE_CODE;
-		meb2->header.msg_len = sizeof(*meb2);
-		meb2->keyblock_type = TYPE50_MEB2_FMT;
-		mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
-		exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
-		inp = meb2->message + sizeof(meb2->message) - mod_len;
-	} else {
-		/* mod_len > 256 = 4096 bit RSA Key */
-		struct type50_meb3_msg *meb3 = ap_msg->message;
-		memset(meb3, 0, sizeof(*meb3));
-		ap_msg->length = sizeof(*meb3);
-		meb3->header.msg_type_code = TYPE50_TYPE_CODE;
-		meb3->header.msg_len = sizeof(*meb3);
-		meb3->keyblock_type = TYPE50_MEB3_FMT;
-		mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
-		exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
-		inp = meb3->message + sizeof(meb3->message) - mod_len;
-	}
-
-	if (copy_from_user(mod, mex->n_modulus, mod_len) ||
-	    copy_from_user(exp, mex->b_key, mod_len) ||
-	    copy_from_user(inp, mex->inputdata, mod_len))
-		return -EFAULT;
-	return 0;
-}
-
-/**
- * Convert a ICACRT message to a type50 CRT message.
- *
- * @zdev: crypto device pointer
- * @zreq: crypto request pointer
- * @crt: pointer to user input data
- *
- * Returns 0 on success or -EFAULT.
- */
-static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
-				       struct ap_message *ap_msg,
-				       struct ica_rsa_modexpo_crt *crt)
-{
-	int mod_len, short_len, long_len, long_offset, limit;
-	unsigned char *p, *q, *dp, *dq, *u, *inp;
-
-	mod_len = crt->inputdatalength;
-	short_len = mod_len / 2;
-	long_len = mod_len / 2 + 8;
-
-	/*
-	 * CEX2A cannot handle p, dp, or U > 128 bytes.
-	 * If we have one of these, we need to do extra checking.
-	 * For CEX3A the limit is 256 bytes.
-	 */
-	if (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)
-		limit = 256;
-	else
-		limit = 128;
-
-	if (long_len > limit) {
-		/*
-		 * zcrypt_rsa_crt already checked for the leading
-		 * zeroes of np_prime, bp_key and u_mult_inc.
-		 */
-		long_offset = long_len - limit;
-		long_len = limit;
-	} else
-		long_offset = 0;
-
-	/*
-	 * Instead of doing extra work for p, dp, U > 64 bytes, we'll just use
-	 * the larger message structure.
-	 */
-	if (long_len <= 64) {
-		struct type50_crb1_msg *crb1 = ap_msg->message;
-		memset(crb1, 0, sizeof(*crb1));
-		ap_msg->length = sizeof(*crb1);
-		crb1->header.msg_type_code = TYPE50_TYPE_CODE;
-		crb1->header.msg_len = sizeof(*crb1);
-		crb1->keyblock_type = TYPE50_CRB1_FMT;
-		p = crb1->p + sizeof(crb1->p) - long_len;
-		q = crb1->q + sizeof(crb1->q) - short_len;
-		dp = crb1->dp + sizeof(crb1->dp) - long_len;
-		dq = crb1->dq + sizeof(crb1->dq) - short_len;
-		u = crb1->u + sizeof(crb1->u) - long_len;
-		inp = crb1->message + sizeof(crb1->message) - mod_len;
-	} else if (long_len <= 128) {
-		struct type50_crb2_msg *crb2 = ap_msg->message;
-		memset(crb2, 0, sizeof(*crb2));
-		ap_msg->length = sizeof(*crb2);
-		crb2->header.msg_type_code = TYPE50_TYPE_CODE;
-		crb2->header.msg_len = sizeof(*crb2);
-		crb2->keyblock_type = TYPE50_CRB2_FMT;
-		p = crb2->p + sizeof(crb2->p) - long_len;
-		q = crb2->q + sizeof(crb2->q) - short_len;
-		dp = crb2->dp + sizeof(crb2->dp) - long_len;
-		dq = crb2->dq + sizeof(crb2->dq) - short_len;
-		u = crb2->u + sizeof(crb2->u) - long_len;
-		inp = crb2->message + sizeof(crb2->message) - mod_len;
-	} else {
-		/* long_len >= 256 */
-		struct type50_crb3_msg *crb3 = ap_msg->message;
-		memset(crb3, 0, sizeof(*crb3));
-		ap_msg->length = sizeof(*crb3);
-		crb3->header.msg_type_code = TYPE50_TYPE_CODE;
-		crb3->header.msg_len = sizeof(*crb3);
-		crb3->keyblock_type = TYPE50_CRB3_FMT;
-		p = crb3->p + sizeof(crb3->p) - long_len;
-		q = crb3->q + sizeof(crb3->q) - short_len;
-		dp = crb3->dp + sizeof(crb3->dp) - long_len;
-		dq = crb3->dq + sizeof(crb3->dq) - short_len;
-		u = crb3->u + sizeof(crb3->u) - long_len;
-		inp = crb3->message + sizeof(crb3->message) - mod_len;
-	}
-
-	if (copy_from_user(p, crt->np_prime + long_offset, long_len) ||
-	    copy_from_user(q, crt->nq_prime, short_len) ||
-	    copy_from_user(dp, crt->bp_key + long_offset, long_len) ||
-	    copy_from_user(dq, crt->bq_key, short_len) ||
-	    copy_from_user(u, crt->u_mult_inv + long_offset, long_len) ||
-	    copy_from_user(inp, crt->inputdata, mod_len))
-		return -EFAULT;
-
-	return 0;
-}
-
-/**
- * Copy results from a type 80 reply message back to user space.
- *
- * @zdev: crypto device pointer
- * @reply: reply AP message.
- * @data: pointer to user output data
- * @length: size of user output data
- *
- * Returns 0 on success or -EFAULT.
- */
-static int convert_type80(struct zcrypt_device *zdev,
-			  struct ap_message *reply,
-			  char __user *outputdata,
-			  unsigned int outputdatalength)
-{
-	struct type80_hdr *t80h = reply->message;
-	unsigned char *data;
-
-	if (t80h->len < sizeof(*t80h) + outputdatalength) {
-		/* The result is too short, the CEX2A card may not do that.. */
-		zdev->online = 0;
-		return -EAGAIN;	/* repeat the request on a different device. */
-	}
-	if (zdev->user_space_type == ZCRYPT_CEX2A)
-		BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
-	else
-		BUG_ON(t80h->len > CEX3A_MAX_RESPONSE_SIZE);
-	data = reply->message + t80h->len - outputdatalength;
-	if (copy_to_user(outputdata, data, outputdatalength))
-		return -EFAULT;
-	return 0;
-}
-
-static int convert_response(struct zcrypt_device *zdev,
-			    struct ap_message *reply,
-			    char __user *outputdata,
-			    unsigned int outputdatalength)
-{
-	/* Response type byte is the second byte in the response. */
-	switch (((unsigned char *) reply->message)[1]) {
-	case TYPE82_RSP_CODE:
-	case TYPE88_RSP_CODE:
-		return convert_error(zdev, reply);
-	case TYPE80_RSP_CODE:
-		return convert_type80(zdev, reply,
-				      outputdata, outputdatalength);
-	default: /* Unknown response type, this should NEVER EVER happen */
-		zdev->online = 0;
-		return -EAGAIN;	/* repeat the request on a different device. */
-	}
-}
-
-/**
- * This function is called from the AP bus code after a crypto request
- * "msg" has finished with the reply message "reply".
- * It is called from tasklet context.
- * @ap_dev: pointer to the AP device
- * @msg: pointer to the AP message
- * @reply: pointer to the AP reply message
- */
-static void zcrypt_cex2a_receive(struct ap_device *ap_dev,
-				 struct ap_message *msg,
-				 struct ap_message *reply)
-{
-	static struct error_hdr error_reply = {
-		.type = TYPE82_RSP_CODE,
-		.reply_code = REP82_ERROR_MACHINE_FAILURE,
-	};
-	struct type80_hdr *t80h;
-	int length;
-
-	/* Copy the reply message to the request message buffer. */
-	if (IS_ERR(reply)) {
-		memcpy(msg->message, &error_reply, sizeof(error_reply));
-		goto out;
-	}
-	t80h = reply->message;
-	if (t80h->type == TYPE80_RSP_CODE) {
-		if (ap_dev->device_type == AP_DEVICE_TYPE_CEX2A)
-			length = min(CEX2A_MAX_RESPONSE_SIZE, (int) t80h->len);
-		else
-			length = min(CEX3A_MAX_RESPONSE_SIZE, (int) t80h->len);
-		memcpy(msg->message, reply->message, length);
-	} else
-		memcpy(msg->message, reply->message, sizeof error_reply);
-out:
-	complete((struct completion *) msg->private);
-}
-
-static atomic_t zcrypt_step = ATOMIC_INIT(0);
-
-/**
- * The request distributor calls this function if it picked the CEX2A
- * device to handle a modexpo request.
- * @zdev: pointer to zcrypt_device structure that identifies the
- *	  CEX2A device to the request distributor
- * @mex: pointer to the modexpo request buffer
- */
-static long zcrypt_cex2a_modexpo(struct zcrypt_device *zdev,
-				 struct ica_rsa_modexpo *mex)
-{
-	struct ap_message ap_msg;
-	struct completion work;
-	int rc;
-
-	ap_init_message(&ap_msg);
-	if (zdev->user_space_type == ZCRYPT_CEX2A)
-		ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
-	else
-		ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
-	if (!ap_msg.message)
-		return -ENOMEM;
-	ap_msg.receive = zcrypt_cex2a_receive;
-	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
-				atomic_inc_return(&zcrypt_step);
-	ap_msg.private = &work;
-	rc = ICAMEX_msg_to_type50MEX_msg(zdev, &ap_msg, mex);
-	if (rc)
-		goto out_free;
-	init_completion(&work);
-	ap_queue_message(zdev->ap_dev, &ap_msg);
-	rc = wait_for_completion_interruptible(&work);
-	if (rc == 0)
-		rc = convert_response(zdev, &ap_msg, mex->outputdata,
-				      mex->outputdatalength);
-	else
-		/* Signal pending. */
-		ap_cancel_message(zdev->ap_dev, &ap_msg);
-out_free:
-	kfree(ap_msg.message);
-	return rc;
-}
-
-/**
- * The request distributor calls this function if it picked the CEX2A
- * device to handle a modexpo_crt request.
- * @zdev: pointer to zcrypt_device structure that identifies the
- *	  CEX2A device to the request distributor
- * @crt: pointer to the modexpoc_crt request buffer
- */
-static long zcrypt_cex2a_modexpo_crt(struct zcrypt_device *zdev,
-				     struct ica_rsa_modexpo_crt *crt)
-{
-	struct ap_message ap_msg;
-	struct completion work;
-	int rc;
-
-	ap_init_message(&ap_msg);
-	if (zdev->user_space_type == ZCRYPT_CEX2A)
-		ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
-	else
-		ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
-	if (!ap_msg.message)
-		return -ENOMEM;
-	ap_msg.receive = zcrypt_cex2a_receive;
-	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
-				atomic_inc_return(&zcrypt_step);
-	ap_msg.private = &work;
-	rc = ICACRT_msg_to_type50CRT_msg(zdev, &ap_msg, crt);
-	if (rc)
-		goto out_free;
-	init_completion(&work);
-	ap_queue_message(zdev->ap_dev, &ap_msg);
-	rc = wait_for_completion_interruptible(&work);
-	if (rc == 0)
-		rc = convert_response(zdev, &ap_msg, crt->outputdata,
-				      crt->outputdatalength);
-	else
-		/* Signal pending. */
-		ap_cancel_message(zdev->ap_dev, &ap_msg);
-out_free:
-	kfree(ap_msg.message);
-	return rc;
-}
-
-/**
- * The crypto operations for a CEX2A card.
- */
-static struct zcrypt_ops zcrypt_cex2a_ops = {
-	.rsa_modexpo = zcrypt_cex2a_modexpo,
-	.rsa_modexpo_crt = zcrypt_cex2a_modexpo_crt,
-};
-
-/**
  * Probe function for CEX2A cards. It always accepts the AP device
  * since the bus_match already checked the hardware type.
  * @ap_dev: pointer to the AP device.
@@ -449,7 +111,8 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
 		zdev->min_mod_size = CEX2A_MIN_MOD_SIZE;
 		zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
 		zdev->max_exp_bit_length = CEX2A_MAX_MOD_SIZE;
-		if (ap_4096_commands_available(ap_dev->qid)) {
+		if (ap_test_bit(&ap_dev->functions, AP_FUNC_MEX4K) &&
+		    ap_test_bit(&ap_dev->functions, AP_FUNC_CRT4K)) {
 			zdev->max_mod_size = CEX3A_MAX_MOD_SIZE;
 			zdev->max_exp_bit_length = CEX3A_MAX_MOD_SIZE;
 		}
@@ -457,16 +120,18 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
 		zdev->speed_rating = CEX3A_SPEED_RATING;
 		break;
 	}
-	if (zdev != NULL) {
-		zdev->ap_dev = ap_dev;
-		zdev->ops = &zcrypt_cex2a_ops;
-		zdev->online = 1;
-		ap_dev->reply = &zdev->reply;
-		ap_dev->private = zdev;
-		rc = zcrypt_device_register(zdev);
-	}
+	if (!zdev)
+		return -ENODEV;
+	zdev->ops = zcrypt_msgtype_request(MSGTYPE50_NAME,
+					   MSGTYPE50_VARIANT_DEFAULT);
+	zdev->ap_dev = ap_dev;
+	zdev->online = 1;
+	ap_dev->reply = &zdev->reply;
+	ap_dev->private = zdev;
+	rc = zcrypt_device_register(zdev);
 	if (rc) {
 		ap_dev->private = NULL;
+		zcrypt_msgtype_release(zdev->ops);
 		zcrypt_device_free(zdev);
 	}
 	return rc;
@@ -479,8 +144,10 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
 static void zcrypt_cex2a_remove(struct ap_device *ap_dev)
 {
 	struct zcrypt_device *zdev = ap_dev->private;
+	struct zcrypt_ops *zops = zdev->ops;
 
 	zcrypt_device_unregister(zdev);
+	zcrypt_msgtype_release(zops);
 }
 
 int __init zcrypt_cex2a_init(void)
diff --git a/drivers/s390/crypto/zcrypt_cex4.c b/drivers/s390/crypto/zcrypt_cex4.c
new file mode 100644
index 00000000000..ce1226398ac
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cex4.c
@@ -0,0 +1,149 @@
+/*
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Holger Dengler <hd@linux.vnet.ibm.com>
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/atomic.h>
+#include <linux/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_msgtype6.h"
+#include "zcrypt_msgtype50.h"
+#include "zcrypt_error.h"
+#include "zcrypt_cex4.h"
+
+#define CEX4A_MIN_MOD_SIZE	  1	/*    8 bits	*/
+#define CEX4A_MAX_MOD_SIZE_2K	256	/* 2048 bits	*/
+#define CEX4A_MAX_MOD_SIZE_4K	512	/* 4096 bits	*/
+
+#define CEX4C_MIN_MOD_SIZE	 16	/*  256 bits	*/
+#define CEX4C_MAX_MOD_SIZE	512	/* 4096 bits	*/
+
+#define CEX4A_SPEED_RATING	900	 /* TODO new card, new speed rating */
+#define CEX4C_SPEED_RATING	6500	 /* TODO new card, new speed rating */
+
+#define CEX4A_MAX_MESSAGE_SIZE	MSGTYPE50_CRB3_MAX_MSG_SIZE
+#define CEX4C_MAX_MESSAGE_SIZE	MSGTYPE06_MAX_MSG_SIZE
+
+#define CEX4_CLEANUP_TIME	(15*HZ)
+
+static struct ap_device_id zcrypt_cex4_ids[] = {
+	{ AP_DEVICE(AP_DEVICE_TYPE_CEX4)  },
+	{ /* end of list */ },
+};
+
+MODULE_DEVICE_TABLE(ap, zcrypt_cex4_ids);
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("CEX4 Cryptographic Card device driver, " \
+		   "Copyright IBM Corp. 2012");
+MODULE_LICENSE("GPL");
+
+static int zcrypt_cex4_probe(struct ap_device *ap_dev);
+static void zcrypt_cex4_remove(struct ap_device *ap_dev);
+
+static struct ap_driver zcrypt_cex4_driver = {
+	.probe = zcrypt_cex4_probe,
+	.remove = zcrypt_cex4_remove,
+	.ids = zcrypt_cex4_ids,
+	.request_timeout = CEX4_CLEANUP_TIME,
+};
+
+/**
+ * Probe function for CEX4 cards. It always accepts the AP device
+ * since the bus_match already checked the hardware type.
+ * @ap_dev: pointer to the AP device.
+ */
+static int zcrypt_cex4_probe(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = NULL;
+	int rc = 0;
+
+	switch (ap_dev->device_type) {
+	case AP_DEVICE_TYPE_CEX4:
+		if (ap_test_bit(&ap_dev->functions, AP_FUNC_ACCEL)) {
+			zdev = zcrypt_device_alloc(CEX4A_MAX_MESSAGE_SIZE);
+			if (!zdev)
+				return -ENOMEM;
+			zdev->type_string = "CEX4A";
+			zdev->user_space_type = ZCRYPT_CEX3A;
+			zdev->min_mod_size = CEX4A_MIN_MOD_SIZE;
+			if (ap_test_bit(&ap_dev->functions, AP_FUNC_MEX4K) &&
+			    ap_test_bit(&ap_dev->functions, AP_FUNC_CRT4K)) {
+				zdev->max_mod_size =
+					CEX4A_MAX_MOD_SIZE_4K;
+				zdev->max_exp_bit_length =
+					CEX4A_MAX_MOD_SIZE_4K;
+			} else {
+				zdev->max_mod_size =
+					CEX4A_MAX_MOD_SIZE_2K;
+				zdev->max_exp_bit_length =
+					CEX4A_MAX_MOD_SIZE_2K;
+			}
+			zdev->short_crt = 1;
+			zdev->speed_rating = CEX4A_SPEED_RATING;
+			zdev->ops = zcrypt_msgtype_request(MSGTYPE50_NAME,
+							   MSGTYPE50_VARIANT_DEFAULT);
+		} else if (ap_test_bit(&ap_dev->functions, AP_FUNC_COPRO)) {
+			zdev = zcrypt_device_alloc(CEX4C_MAX_MESSAGE_SIZE);
+			if (!zdev)
+				return -ENOMEM;
+			zdev->type_string = "CEX4C";
+			zdev->user_space_type = ZCRYPT_CEX3C;
+			zdev->min_mod_size = CEX4C_MIN_MOD_SIZE;
+			zdev->max_mod_size = CEX4C_MAX_MOD_SIZE;
+			zdev->max_exp_bit_length = CEX4C_MAX_MOD_SIZE;
+			zdev->short_crt = 0;
+			zdev->speed_rating = CEX4C_SPEED_RATING;
+			zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+							   MSGTYPE06_VARIANT_DEFAULT);
+		}
+		break;
+	}
+	if (!zdev)
+		return -ENODEV;
+	zdev->ap_dev = ap_dev;
+	zdev->online = 1;
+	ap_dev->reply = &zdev->reply;
+	ap_dev->private = zdev;
+	rc = zcrypt_device_register(zdev);
+	if (rc) {
+		zcrypt_msgtype_release(zdev->ops);
+		ap_dev->private = NULL;
+		zcrypt_device_free(zdev);
+	}
+	return rc;
+}
+
+/**
+ * This is called to remove the extended CEX4 driver information
+ * if an AP device is removed.
+ */
+static void zcrypt_cex4_remove(struct ap_device *ap_dev)
+{
+	struct zcrypt_device *zdev = ap_dev->private;
+	struct zcrypt_ops *zops;
+
+	if (zdev) {
+		zops = zdev->ops;
+		zcrypt_device_unregister(zdev);
+		zcrypt_msgtype_release(zops);
+	}
+}
+
+int __init zcrypt_cex4_init(void)
+{
+	return ap_driver_register(&zcrypt_cex4_driver, THIS_MODULE, "cex4");
+}
+
+void __exit zcrypt_cex4_exit(void)
+{
+	ap_driver_unregister(&zcrypt_cex4_driver);
+}
+
+module_init(zcrypt_cex4_init);
+module_exit(zcrypt_cex4_exit);
diff --git a/drivers/s390/crypto/zcrypt_cex4.h b/drivers/s390/crypto/zcrypt_cex4.h
new file mode 100644
index 00000000000..719571375cc
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_cex4.h
@@ -0,0 +1,12 @@
+/*
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Holger Dengler <hd@linux.vnet.ibm.com>
+ */
+
+#ifndef _ZCRYPT_CEX4_H_
+#define _ZCRYPT_CEX4_H_
+
+int zcrypt_cex4_init(void);
+void zcrypt_cex4_exit(void);
+
+#endif /* _ZCRYPT_CEX4_H_ */
diff --git a/drivers/s390/crypto/zcrypt_debug.h b/drivers/s390/crypto/zcrypt_debug.h
new file mode 100644
index 00000000000..841ea72e4a4
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_debug.h
@@ -0,0 +1,59 @@
+/*
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Holger Dengler (hd@linux.vnet.ibm.com)
+ */
+#ifndef ZCRYPT_DEBUG_H
+#define ZCRYPT_DEBUG_H
+
+#include <asm/debug.h>
+#include "zcrypt_api.h"
+
+/* that gives us 15 characters in the text event views */
+#define ZCRYPT_DBF_LEN	16
+
+/* sort out low debug levels early to avoid wasted sprints */
+static inline int zcrypt_dbf_passes(debug_info_t *dbf_grp, int level)
+{
+	return (level <= dbf_grp->level);
+}
+
+#define DBF_ERR		3	/* error conditions	*/
+#define DBF_WARN	4	/* warning conditions	*/
+#define DBF_INFO	6	/* informational	*/
+
+#define RC2WARN(rc) ((rc) ? DBF_WARN : DBF_INFO)
+
+#define ZCRYPT_DBF_COMMON(level, text...) \
+	do { \
+		if (zcrypt_dbf_passes(zcrypt_dbf_common, level)) { \
+			char debug_buffer[ZCRYPT_DBF_LEN]; \
+			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+			debug_text_event(zcrypt_dbf_common, level, \
+					 debug_buffer); \
+		} \
+	} while (0)
+
+#define ZCRYPT_DBF_DEVICES(level, text...) \
+	do { \
+		if (zcrypt_dbf_passes(zcrypt_dbf_devices, level)) { \
+			char debug_buffer[ZCRYPT_DBF_LEN]; \
+			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+			debug_text_event(zcrypt_dbf_devices, level, \
+					 debug_buffer); \
+		} \
+	} while (0)
+
+#define ZCRYPT_DBF_DEV(level, device, text...) \
+	do { \
+		if (zcrypt_dbf_passes(device->dbf_area, level)) { \
+			char debug_buffer[ZCRYPT_DBF_LEN]; \
+			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+			debug_text_event(device->dbf_area, level, \
+					 debug_buffer); \
+		} \
+	} while (0)
+
+int zcrypt_debug_init(void);
+void zcrypt_debug_exit(void);
+
+#endif /* ZCRYPT_DEBUG_H */
diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h
index 0965e2626d1..0079b661721 100644
--- a/drivers/s390/crypto/zcrypt_error.h
+++ b/drivers/s390/crypto/zcrypt_error.h
@@ -26,6 +26,8 @@
 #ifndef _ZCRYPT_ERROR_H_
 #define _ZCRYPT_ERROR_H_
 
+#include <linux/atomic.h>
+#include "zcrypt_debug.h"
 #include "zcrypt_api.h"
 
 /**
@@ -108,16 +110,27 @@ static inline int convert_error(struct zcrypt_device *zdev,
 		 * and then repeat the request.
 		 */
 		WARN_ON(1);
+		atomic_set(&zcrypt_rescan_req, 1);
 		zdev->online = 0;
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			       zdev->ap_dev->qid,
+			       zdev->online, ehdr->reply_code);
 		return -EAGAIN;
 	case REP82_ERROR_TRANSPORT_FAIL:
 	case REP82_ERROR_MACHINE_FAILURE:
 	//   REP88_ERROR_MODULE_FAILURE		// '10' CEX2A
 		/* If a card fails disable it and repeat the request. */
+		atomic_set(&zcrypt_rescan_req, 1);
 		zdev->online = 0;
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			       zdev->ap_dev->qid,
+			       zdev->online, ehdr->reply_code);
 		return -EAGAIN;
 	default:
 		zdev->online = 0;
+		ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
+			       zdev->ap_dev->qid,
+			       zdev->online, ehdr->reply_code);
 		return -EAGAIN;	/* repeat the request on a different device. */
 	}
 }
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c
new file mode 100644
index 00000000000..035b6dc31b7
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype50.c
@@ -0,0 +1,531 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/atomic.h>
+#include <linux/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_error.h"
+#include "zcrypt_msgtype50.h"
+
+#define CEX3A_MAX_MOD_SIZE	512	/* 4096 bits	*/
+
+#define CEX2A_MAX_RESPONSE_SIZE 0x110	/* max outputdatalength + type80_hdr */
+
+#define CEX3A_MAX_RESPONSE_SIZE	0x210	/* 512 bit modulus
+					 * (max outputdatalength) +
+					 * type80_hdr*/
+
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("Cryptographic Accelerator (message type 50), " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static void zcrypt_cex2a_receive(struct ap_device *, struct ap_message *,
+				 struct ap_message *);
+
+/**
+ * The type 50 message family is associated with a CEX2A card.
+ *
+ * The four members of the family are described below.
+ *
+ * Note that all unsigned char arrays are right-justified and left-padded
+ * with zeroes.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type50_hdr {
+	unsigned char	reserved1;
+	unsigned char	msg_type_code;	/* 0x50 */
+	unsigned short	msg_len;
+	unsigned char	reserved2;
+	unsigned char	ignored;
+	unsigned short	reserved3;
+} __packed;
+
+#define TYPE50_TYPE_CODE	0x50
+
+#define TYPE50_MEB1_FMT		0x0001
+#define TYPE50_MEB2_FMT		0x0002
+#define TYPE50_MEB3_FMT		0x0003
+#define TYPE50_CRB1_FMT		0x0011
+#define TYPE50_CRB2_FMT		0x0012
+#define TYPE50_CRB3_FMT		0x0013
+
+/* Mod-Exp, with a small modulus */
+struct type50_meb1_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0001 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[128];
+	unsigned char	modulus[128];
+	unsigned char	message[128];
+} __packed;
+
+/* Mod-Exp, with a large modulus */
+struct type50_meb2_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0002 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[256];
+	unsigned char	modulus[256];
+	unsigned char	message[256];
+} __packed;
+
+/* Mod-Exp, with a larger modulus */
+struct type50_meb3_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0003 */
+	unsigned char	reserved[6];
+	unsigned char	exponent[512];
+	unsigned char	modulus[512];
+	unsigned char	message[512];
+} __packed;
+
+/* CRT, with a small modulus */
+struct type50_crb1_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0011 */
+	unsigned char	reserved[6];
+	unsigned char	p[64];
+	unsigned char	q[64];
+	unsigned char	dp[64];
+	unsigned char	dq[64];
+	unsigned char	u[64];
+	unsigned char	message[128];
+} __packed;
+
+/* CRT, with a large modulus */
+struct type50_crb2_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0012 */
+	unsigned char	reserved[6];
+	unsigned char	p[128];
+	unsigned char	q[128];
+	unsigned char	dp[128];
+	unsigned char	dq[128];
+	unsigned char	u[128];
+	unsigned char	message[256];
+} __packed;
+
+/* CRT, with a larger modulus */
+struct type50_crb3_msg {
+	struct type50_hdr header;
+	unsigned short	keyblock_type;	/* 0x0013 */
+	unsigned char	reserved[6];
+	unsigned char	p[256];
+	unsigned char	q[256];
+	unsigned char	dp[256];
+	unsigned char	dq[256];
+	unsigned char	u[256];
+	unsigned char	message[512];
+} __packed;
+
+/**
+ * The type 80 response family is associated with a CEX2A card.
+ *
+ * Note that all unsigned char arrays are right-justified and left-padded
+ * with zeroes.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+
+#define TYPE80_RSP_CODE 0x80
+
+struct type80_hdr {
+	unsigned char	reserved1;
+	unsigned char	type;		/* 0x80 */
+	unsigned short	len;
+	unsigned char	code;		/* 0x00 */
+	unsigned char	reserved2[3];
+	unsigned char	reserved3[8];
+} __packed;
+
+/**
+ * Convert a ICAMEX message to a type50 MEX message.
+ *
+ * @zdev: crypto device pointer
+ * @zreq: crypto request pointer
+ * @mex: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo *mex)
+{
+	unsigned char *mod, *exp, *inp;
+	int mod_len;
+
+	mod_len = mex->inputdatalength;
+
+	if (mod_len <= 128) {
+		struct type50_meb1_msg *meb1 = ap_msg->message;
+		memset(meb1, 0, sizeof(*meb1));
+		ap_msg->length = sizeof(*meb1);
+		meb1->header.msg_type_code = TYPE50_TYPE_CODE;
+		meb1->header.msg_len = sizeof(*meb1);
+		meb1->keyblock_type = TYPE50_MEB1_FMT;
+		mod = meb1->modulus + sizeof(meb1->modulus) - mod_len;
+		exp = meb1->exponent + sizeof(meb1->exponent) - mod_len;
+		inp = meb1->message + sizeof(meb1->message) - mod_len;
+	} else if (mod_len <= 256) {
+		struct type50_meb2_msg *meb2 = ap_msg->message;
+		memset(meb2, 0, sizeof(*meb2));
+		ap_msg->length = sizeof(*meb2);
+		meb2->header.msg_type_code = TYPE50_TYPE_CODE;
+		meb2->header.msg_len = sizeof(*meb2);
+		meb2->keyblock_type = TYPE50_MEB2_FMT;
+		mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
+		exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
+		inp = meb2->message + sizeof(meb2->message) - mod_len;
+	} else {
+		/* mod_len > 256 = 4096 bit RSA Key */
+		struct type50_meb3_msg *meb3 = ap_msg->message;
+		memset(meb3, 0, sizeof(*meb3));
+		ap_msg->length = sizeof(*meb3);
+		meb3->header.msg_type_code = TYPE50_TYPE_CODE;
+		meb3->header.msg_len = sizeof(*meb3);
+		meb3->keyblock_type = TYPE50_MEB3_FMT;
+		mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
+		exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
+		inp = meb3->message + sizeof(meb3->message) - mod_len;
+	}
+
+	if (copy_from_user(mod, mex->n_modulus, mod_len) ||
+	    copy_from_user(exp, mex->b_key, mod_len) ||
+	    copy_from_user(inp, mex->inputdata, mod_len))
+		return -EFAULT;
+	return 0;
+}
+
+/**
+ * Convert a ICACRT message to a type50 CRT message.
+ *
+ * @zdev: crypto device pointer
+ * @zreq: crypto request pointer
+ * @crt: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo_crt *crt)
+{
+	int mod_len, short_len, long_len, long_offset, limit;
+	unsigned char *p, *q, *dp, *dq, *u, *inp;
+
+	mod_len = crt->inputdatalength;
+	short_len = mod_len / 2;
+	long_len = mod_len / 2 + 8;
+
+	/*
+	 * CEX2A cannot handle p, dp, or U > 128 bytes.
+	 * If we have one of these, we need to do extra checking.
+	 * For CEX3A the limit is 256 bytes.
+	 */
+	if (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)
+		limit = 256;
+	else
+		limit = 128;
+
+	if (long_len > limit) {
+		/*
+		 * zcrypt_rsa_crt already checked for the leading
+		 * zeroes of np_prime, bp_key and u_mult_inc.
+		 */
+		long_offset = long_len - limit;
+		long_len = limit;
+	} else
+		long_offset = 0;
+
+	/*
+	 * Instead of doing extra work for p, dp, U > 64 bytes, we'll just use
+	 * the larger message structure.
+	 */
+	if (long_len <= 64) {
+		struct type50_crb1_msg *crb1 = ap_msg->message;
+		memset(crb1, 0, sizeof(*crb1));
+		ap_msg->length = sizeof(*crb1);
+		crb1->header.msg_type_code = TYPE50_TYPE_CODE;
+		crb1->header.msg_len = sizeof(*crb1);
+		crb1->keyblock_type = TYPE50_CRB1_FMT;
+		p = crb1->p + sizeof(crb1->p) - long_len;
+		q = crb1->q + sizeof(crb1->q) - short_len;
+		dp = crb1->dp + sizeof(crb1->dp) - long_len;
+		dq = crb1->dq + sizeof(crb1->dq) - short_len;
+		u = crb1->u + sizeof(crb1->u) - long_len;
+		inp = crb1->message + sizeof(crb1->message) - mod_len;
+	} else if (long_len <= 128) {
+		struct type50_crb2_msg *crb2 = ap_msg->message;
+		memset(crb2, 0, sizeof(*crb2));
+		ap_msg->length = sizeof(*crb2);
+		crb2->header.msg_type_code = TYPE50_TYPE_CODE;
+		crb2->header.msg_len = sizeof(*crb2);
+		crb2->keyblock_type = TYPE50_CRB2_FMT;
+		p = crb2->p + sizeof(crb2->p) - long_len;
+		q = crb2->q + sizeof(crb2->q) - short_len;
+		dp = crb2->dp + sizeof(crb2->dp) - long_len;
+		dq = crb2->dq + sizeof(crb2->dq) - short_len;
+		u = crb2->u + sizeof(crb2->u) - long_len;
+		inp = crb2->message + sizeof(crb2->message) - mod_len;
+	} else {
+		/* long_len >= 256 */
+		struct type50_crb3_msg *crb3 = ap_msg->message;
+		memset(crb3, 0, sizeof(*crb3));
+		ap_msg->length = sizeof(*crb3);
+		crb3->header.msg_type_code = TYPE50_TYPE_CODE;
+		crb3->header.msg_len = sizeof(*crb3);
+		crb3->keyblock_type = TYPE50_CRB3_FMT;
+		p = crb3->p + sizeof(crb3->p) - long_len;
+		q = crb3->q + sizeof(crb3->q) - short_len;
+		dp = crb3->dp + sizeof(crb3->dp) - long_len;
+		dq = crb3->dq + sizeof(crb3->dq) - short_len;
+		u = crb3->u + sizeof(crb3->u) - long_len;
+		inp = crb3->message + sizeof(crb3->message) - mod_len;
+	}
+
+	if (copy_from_user(p, crt->np_prime + long_offset, long_len) ||
+	    copy_from_user(q, crt->nq_prime, short_len) ||
+	    copy_from_user(dp, crt->bp_key + long_offset, long_len) ||
+	    copy_from_user(dq, crt->bq_key, short_len) ||
+	    copy_from_user(u, crt->u_mult_inv + long_offset, long_len) ||
+	    copy_from_user(inp, crt->inputdata, mod_len))
+		return -EFAULT;
+
+	return 0;
+}
+
+/**
+ * Copy results from a type 80 reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @data: pointer to user output data
+ * @length: size of user output data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int convert_type80(struct zcrypt_device *zdev,
+			  struct ap_message *reply,
+			  char __user *outputdata,
+			  unsigned int outputdatalength)
+{
+	struct type80_hdr *t80h = reply->message;
+	unsigned char *data;
+
+	if (t80h->len < sizeof(*t80h) + outputdatalength) {
+		/* The result is too short, the CEX2A card may not do that.. */
+		zdev->online = 0;
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+	if (zdev->user_space_type == ZCRYPT_CEX2A)
+		BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
+	else
+		BUG_ON(t80h->len > CEX3A_MAX_RESPONSE_SIZE);
+	data = reply->message + t80h->len - outputdatalength;
+	if (copy_to_user(outputdata, data, outputdatalength))
+		return -EFAULT;
+	return 0;
+}
+
+static int convert_response(struct zcrypt_device *zdev,
+			    struct ap_message *reply,
+			    char __user *outputdata,
+			    unsigned int outputdatalength)
+{
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *) reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		return convert_error(zdev, reply);
+	case TYPE80_RSP_CODE:
+		return convert_type80(zdev, reply,
+				      outputdata, outputdatalength);
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+/**
+ * This function is called from the AP bus code after a crypto request
+ * "msg" has finished with the reply message "reply".
+ * It is called from tasklet context.
+ * @ap_dev: pointer to the AP device
+ * @msg: pointer to the AP message
+ * @reply: pointer to the AP reply message
+ */
+static void zcrypt_cex2a_receive(struct ap_device *ap_dev,
+				 struct ap_message *msg,
+				 struct ap_message *reply)
+{
+	static struct error_hdr error_reply = {
+		.type = TYPE82_RSP_CODE,
+		.reply_code = REP82_ERROR_MACHINE_FAILURE,
+	};
+	struct type80_hdr *t80h;
+	int length;
+
+	/* Copy the reply message to the request message buffer. */
+	if (IS_ERR(reply)) {
+		memcpy(msg->message, &error_reply, sizeof(error_reply));
+		goto out;
+	}
+	t80h = reply->message;
+	if (t80h->type == TYPE80_RSP_CODE) {
+		if (ap_dev->device_type == AP_DEVICE_TYPE_CEX2A)
+			length = min_t(int,
+				       CEX2A_MAX_RESPONSE_SIZE, t80h->len);
+		else
+			length = min_t(int,
+				       CEX3A_MAX_RESPONSE_SIZE, t80h->len);
+		memcpy(msg->message, reply->message, length);
+	} else
+		memcpy(msg->message, reply->message, sizeof(error_reply));
+out:
+	complete((struct completion *) msg->private);
+}
+
+static atomic_t zcrypt_step = ATOMIC_INIT(0);
+
+/**
+ * The request distributor calls this function if it picked the CEX2A
+ * device to handle a modexpo request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  CEX2A device to the request distributor
+ * @mex: pointer to the modexpo request buffer
+ */
+static long zcrypt_cex2a_modexpo(struct zcrypt_device *zdev,
+				 struct ica_rsa_modexpo *mex)
+{
+	struct ap_message ap_msg;
+	struct completion work;
+	int rc;
+
+	ap_init_message(&ap_msg);
+	if (zdev->user_space_type == ZCRYPT_CEX2A)
+		ap_msg.message = kmalloc(MSGTYPE50_CRB2_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	else
+		ap_msg.message = kmalloc(MSGTYPE50_CRB3_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_cex2a_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &work;
+	rc = ICAMEX_msg_to_type50MEX_msg(zdev, &ap_msg, mex);
+	if (rc)
+		goto out_free;
+	init_completion(&work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&work);
+	if (rc == 0)
+		rc = convert_response(zdev, &ap_msg, mex->outputdata,
+				      mex->outputdatalength);
+	else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	kfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the CEX2A
+ * device to handle a modexpo_crt request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  CEX2A device to the request distributor
+ * @crt: pointer to the modexpoc_crt request buffer
+ */
+static long zcrypt_cex2a_modexpo_crt(struct zcrypt_device *zdev,
+				     struct ica_rsa_modexpo_crt *crt)
+{
+	struct ap_message ap_msg;
+	struct completion work;
+	int rc;
+
+	ap_init_message(&ap_msg);
+	if (zdev->user_space_type == ZCRYPT_CEX2A)
+		ap_msg.message = kmalloc(MSGTYPE50_CRB2_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	else
+		ap_msg.message = kmalloc(MSGTYPE50_CRB3_MAX_MSG_SIZE,
+					 GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_cex2a_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &work;
+	rc = ICACRT_msg_to_type50CRT_msg(zdev, &ap_msg, crt);
+	if (rc)
+		goto out_free;
+	init_completion(&work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&work);
+	if (rc == 0)
+		rc = convert_response(zdev, &ap_msg, crt->outputdata,
+				      crt->outputdatalength);
+	else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	kfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The crypto operations for message type 50.
+ */
+static struct zcrypt_ops zcrypt_msgtype50_ops = {
+	.rsa_modexpo = zcrypt_cex2a_modexpo,
+	.rsa_modexpo_crt = zcrypt_cex2a_modexpo_crt,
+	.owner = THIS_MODULE,
+	.variant = MSGTYPE50_VARIANT_DEFAULT,
+};
+
+int __init zcrypt_msgtype50_init(void)
+{
+	zcrypt_msgtype_register(&zcrypt_msgtype50_ops);
+	return 0;
+}
+
+void __exit zcrypt_msgtype50_exit(void)
+{
+	zcrypt_msgtype_unregister(&zcrypt_msgtype50_ops);
+}
+
+module_init(zcrypt_msgtype50_init);
+module_exit(zcrypt_msgtype50_exit);
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.h b/drivers/s390/crypto/zcrypt_msgtype50.h
new file mode 100644
index 00000000000..e56dc72c773
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype50.h
@@ -0,0 +1,39 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _ZCRYPT_MSGTYPE50_H_
+#define _ZCRYPT_MSGTYPE50_H_
+
+#define MSGTYPE50_NAME			"zcrypt_msgtype50"
+#define MSGTYPE50_VARIANT_DEFAULT	0
+
+#define MSGTYPE50_CRB2_MAX_MSG_SIZE	0x390 /*sizeof(struct type50_crb2_msg)*/
+#define MSGTYPE50_CRB3_MAX_MSG_SIZE	0x710 /*sizeof(struct type50_crb3_msg)*/
+
+int zcrypt_msgtype50_init(void);
+void zcrypt_msgtype50_exit(void);
+
+#endif /* _ZCRYPT_MSGTYPE50_H_ */
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
new file mode 100644
index 00000000000..7d97fa5a26d
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -0,0 +1,856 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/atomic.h>
+#include <linux/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_error.h"
+#include "zcrypt_msgtype6.h"
+#include "zcrypt_cca_key.h"
+
+#define PCIXCC_MIN_MOD_SIZE_OLD	 64	/*  512 bits	*/
+#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
+
+#define CEIL4(x) ((((x)+3)/4)*4)
+
+struct response_type {
+	struct completion work;
+	int type;
+};
+#define PCIXCC_RESPONSE_TYPE_ICA  0
+#define PCIXCC_RESPONSE_TYPE_XCRB 1
+
+MODULE_AUTHOR("IBM Corporation");
+MODULE_DESCRIPTION("Cryptographic Coprocessor (message type 6), " \
+		   "Copyright IBM Corp. 2001, 2012");
+MODULE_LICENSE("GPL");
+
+static void zcrypt_msgtype6_receive(struct ap_device *, struct ap_message *,
+				 struct ap_message *);
+
+/**
+ * CPRB
+ *	  Note that all shorts, ints and longs are little-endian.
+ *	  All pointer fields are 32-bits long, and mean nothing
+ *
+ *	  A request CPRB is followed by a request_parameter_block.
+ *
+ *	  The request (or reply) parameter block is organized thus:
+ *	    function code
+ *	    VUD block
+ *	    key block
+ */
+struct CPRB {
+	unsigned short cprb_len;	/* CPRB length			 */
+	unsigned char cprb_ver_id;	/* CPRB version id.		 */
+	unsigned char pad_000;		/* Alignment pad byte.		 */
+	unsigned char srpi_rtcode[4];	/* SRPI return code LELONG	 */
+	unsigned char srpi_verb;	/* SRPI verb type		 */
+	unsigned char flags;		/* flags			 */
+	unsigned char func_id[2];	/* function id			 */
+	unsigned char checkpoint_flag;	/*				 */
+	unsigned char resv2;		/* reserved			 */
+	unsigned short req_parml;	/* request parameter buffer	 */
+					/* length 16-bit little endian	 */
+	unsigned char req_parmp[4];	/* request parameter buffer	 *
+					 * pointer (means nothing: the	 *
+					 * parameter buffer follows	 *
+					 * the CPRB).			 */
+	unsigned char req_datal[4];	/* request data buffer		 */
+					/* length	  ULELONG	 */
+	unsigned char req_datap[4];	/* request data buffer		 */
+					/* pointer			 */
+	unsigned short rpl_parml;	/* reply  parameter buffer	 */
+					/* length 16-bit little endian	 */
+	unsigned char pad_001[2];	/* Alignment pad bytes. ULESHORT */
+	unsigned char rpl_parmp[4];	/* reply parameter buffer	 *
+					 * pointer (means nothing: the	 *
+					 * parameter buffer follows	 *
+					 * the CPRB).			 */
+	unsigned char rpl_datal[4];	/* reply data buffer len ULELONG */
+	unsigned char rpl_datap[4];	/* reply data buffer		 */
+					/* pointer			 */
+	unsigned short ccp_rscode;	/* server reason code	ULESHORT */
+	unsigned short ccp_rtcode;	/* server return code	ULESHORT */
+	unsigned char repd_parml[2];	/* replied parameter len ULESHORT*/
+	unsigned char mac_data_len[2];	/* Mac Data Length	ULESHORT */
+	unsigned char repd_datal[4];	/* replied data length	ULELONG	 */
+	unsigned char req_pc[2];	/* PC identifier		 */
+	unsigned char res_origin[8];	/* resource origin		 */
+	unsigned char mac_value[8];	/* Mac Value			 */
+	unsigned char logon_id[8];	/* Logon Identifier		 */
+	unsigned char usage_domain[2];	/* cdx				 */
+	unsigned char resv3[18];	/* reserved for requestor	 */
+	unsigned short svr_namel;	/* server name length  ULESHORT	 */
+	unsigned char svr_name[8];	/* server name			 */
+} __packed;
+
+struct function_and_rules_block {
+	unsigned char function_code[2];
+	unsigned short ulen;
+	unsigned char only_rule[8];
+} __packed;
+
+/**
+ * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C
+ * card in a type6 message. The 3 fields that must be filled in at execution
+ * time are  req_parml, rpl_parml and usage_domain.
+ * Everything about this interface is ascii/big-endian, since the
+ * device does *not* have 'Intel inside'.
+ *
+ * The CPRBX is followed immediately by the parm block.
+ * The parm block contains:
+ * - function code ('PD' 0x5044 or 'PK' 0x504B)
+ * - rule block (one of:)
+ *   + 0x000A 'PKCS-1.2' (MCL2 'PD')
+ *   + 0x000A 'ZERO-PAD' (MCL2 'PK')
+ *   + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD')
+ *   + 0x000A 'MRP     ' (MCL3 'PK' or CEX2C 'PK')
+ * - VUD block
+ */
+static struct CPRBX static_cprbx = {
+	.cprb_len	=  0x00DC,
+	.cprb_ver_id	=  0x02,
+	.func_id	= {0x54, 0x32},
+};
+
+/**
+ * Convert a ICAMEX message to a type6 MEX message.
+ *
+ * @zdev: crypto device pointer
+ * @ap_msg: pointer to AP message
+ * @mex: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo *mex)
+{
+	static struct type6_hdr static_type6_hdrX = {
+		.type		=  0x06,
+		.offset1	=  0x00000058,
+		.agent_id	= {'C', 'A',},
+		.function_code	= {'P', 'K'},
+	};
+	static struct function_and_rules_block static_pke_fnr = {
+		.function_code	= {'P', 'K'},
+		.ulen		= 10,
+		.only_rule	= {'M', 'R', 'P', ' ', ' ', ' ', ' ', ' '}
+	};
+	static struct function_and_rules_block static_pke_fnr_MCL2 = {
+		.function_code	= {'P', 'K'},
+		.ulen		= 10,
+		.only_rule	= {'Z', 'E', 'R', 'O', '-', 'P', 'A', 'D'}
+	};
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+		struct function_and_rules_block fr;
+		unsigned short length;
+		char text[0];
+	} __packed * msg = ap_msg->message;
+	int size;
+
+	/* VUD.ciphertext */
+	msg->length = mex->inputdatalength + 2;
+	if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength))
+		return -EFAULT;
+
+	/* Set up key which is located after the variable length text. */
+	size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1);
+	if (size < 0)
+		return size;
+	size += sizeof(*msg) + mex->inputdatalength;
+
+	/* message header, cprbx and f&r */
+	msg->hdr = static_type6_hdrX;
+	msg->hdr.ToCardLen1 = size - sizeof(msg->hdr);
+	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
+
+	msg->cprbx = static_cprbx;
+	msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
+	msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1;
+
+	msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
+		static_pke_fnr_MCL2 : static_pke_fnr;
+
+	msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx);
+
+	ap_msg->length = size;
+	return 0;
+}
+
+/**
+ * Convert a ICACRT message to a type6 CRT message.
+ *
+ * @zdev: crypto device pointer
+ * @ap_msg: pointer to AP message
+ * @crt: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT.
+ */
+static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_rsa_modexpo_crt *crt)
+{
+	static struct type6_hdr static_type6_hdrX = {
+		.type		=  0x06,
+		.offset1	=  0x00000058,
+		.agent_id	= {'C', 'A',},
+		.function_code	= {'P', 'D'},
+	};
+	static struct function_and_rules_block static_pkd_fnr = {
+		.function_code	= {'P', 'D'},
+		.ulen		= 10,
+		.only_rule	= {'Z', 'E', 'R', 'O', '-', 'P', 'A', 'D'}
+	};
+
+	static struct function_and_rules_block static_pkd_fnr_MCL2 = {
+		.function_code	= {'P', 'D'},
+		.ulen		= 10,
+		.only_rule	= {'P', 'K', 'C', 'S', '-', '1', '.', '2'}
+	};
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+		struct function_and_rules_block fr;
+		unsigned short length;
+		char text[0];
+	} __packed * msg = ap_msg->message;
+	int size;
+
+	/* VUD.ciphertext */
+	msg->length = crt->inputdatalength + 2;
+	if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength))
+		return -EFAULT;
+
+	/* Set up key which is located after the variable length text. */
+	size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1);
+	if (size < 0)
+		return size;
+	size += sizeof(*msg) + crt->inputdatalength;	/* total size of msg */
+
+	/* message header, cprbx and f&r */
+	msg->hdr = static_type6_hdrX;
+	msg->hdr.ToCardLen1 = size -  sizeof(msg->hdr);
+	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
+
+	msg->cprbx = static_cprbx;
+	msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
+	msg->cprbx.req_parml = msg->cprbx.rpl_msgbl =
+		size - sizeof(msg->hdr) - sizeof(msg->cprbx);
+
+	msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
+		static_pkd_fnr_MCL2 : static_pkd_fnr;
+
+	ap_msg->length = size;
+	return 0;
+}
+
+/**
+ * Convert a XCRB message to a type6 CPRB message.
+ *
+ * @zdev: crypto device pointer
+ * @ap_msg: pointer to AP message
+ * @xcRB: pointer to user input data
+ *
+ * Returns 0 on success or -EFAULT, -EINVAL.
+ */
+struct type86_fmt2_msg {
+	struct type86_hdr hdr;
+	struct type86_fmt2_ext fmt2;
+} __packed;
+
+static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
+				       struct ap_message *ap_msg,
+				       struct ica_xcRB *xcRB)
+{
+	static struct type6_hdr static_type6_hdrX = {
+		.type		=  0x06,
+		.offset1	=  0x00000058,
+	};
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+	} __packed * msg = ap_msg->message;
+
+	int rcblen = CEIL4(xcRB->request_control_blk_length);
+	int replylen;
+	char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen;
+	char *function_code;
+
+	/* length checks */
+	ap_msg->length = sizeof(struct type6_hdr) +
+		CEIL4(xcRB->request_control_blk_length) +
+		xcRB->request_data_length;
+	if (ap_msg->length > MSGTYPE06_MAX_MSG_SIZE)
+		return -EINVAL;
+	replylen = sizeof(struct type86_fmt2_msg) +
+		CEIL4(xcRB->reply_control_blk_length) +
+		xcRB->reply_data_length;
+	if (replylen > MSGTYPE06_MAX_MSG_SIZE)
+		return -EINVAL;
+
+	/* prepare type6 header */
+	msg->hdr = static_type6_hdrX;
+	memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID));
+	msg->hdr.ToCardLen1 = xcRB->request_control_blk_length;
+	if (xcRB->request_data_length) {
+		msg->hdr.offset2 = msg->hdr.offset1 + rcblen;
+		msg->hdr.ToCardLen2 = xcRB->request_data_length;
+	}
+	msg->hdr.FromCardLen1 = xcRB->reply_control_blk_length;
+	msg->hdr.FromCardLen2 = xcRB->reply_data_length;
+
+	/* prepare CPRB */
+	if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr,
+		    xcRB->request_control_blk_length))
+		return -EFAULT;
+	if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
+	    xcRB->request_control_blk_length)
+		return -EINVAL;
+	function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len;
+	memcpy(msg->hdr.function_code, function_code,
+	       sizeof(msg->hdr.function_code));
+
+	if (memcmp(function_code, "US", 2) == 0)
+		ap_msg->special = 1;
+	else
+		ap_msg->special = 0;
+
+	/* copy data block */
+	if (xcRB->request_data_length &&
+	    copy_from_user(req_data, xcRB->request_data_address,
+		xcRB->request_data_length))
+		return -EFAULT;
+	return 0;
+}
+
+/**
+ * Copy results from a type 86 ICA reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @data: pointer to user output data
+ * @length: size of user output data
+ *
+ * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
+ */
+struct type86x_reply {
+	struct type86_hdr hdr;
+	struct type86_fmt2_ext fmt2;
+	struct CPRBX cprbx;
+	unsigned char pad[4];	/* 4 byte function code/rules block ? */
+	unsigned short length;
+	char text[0];
+} __packed;
+
+static int convert_type86_ica(struct zcrypt_device *zdev,
+			  struct ap_message *reply,
+			  char __user *outputdata,
+			  unsigned int outputdatalength)
+{
+	static unsigned char static_pad[] = {
+		0x00, 0x02,
+		0x1B, 0x7B, 0x5D, 0xB5, 0x75, 0x01, 0x3D, 0xFD,
+		0x8D, 0xD1, 0xC7, 0x03, 0x2D, 0x09, 0x23, 0x57,
+		0x89, 0x49, 0xB9, 0x3F, 0xBB, 0x99, 0x41, 0x5B,
+		0x75, 0x21, 0x7B, 0x9D, 0x3B, 0x6B, 0x51, 0x39,
+		0xBB, 0x0D, 0x35, 0xB9, 0x89, 0x0F, 0x93, 0xA5,
+		0x0B, 0x47, 0xF1, 0xD3, 0xBB, 0xCB, 0xF1, 0x9D,
+		0x23, 0x73, 0x71, 0xFF, 0xF3, 0xF5, 0x45, 0xFB,
+		0x61, 0x29, 0x23, 0xFD, 0xF1, 0x29, 0x3F, 0x7F,
+		0x17, 0xB7, 0x1B, 0xA9, 0x19, 0xBD, 0x57, 0xA9,
+		0xD7, 0x95, 0xA3, 0xCB, 0xED, 0x1D, 0xDB, 0x45,
+		0x7D, 0x11, 0xD1, 0x51, 0x1B, 0xED, 0x71, 0xE9,
+		0xB1, 0xD1, 0xAB, 0xAB, 0x21, 0x2B, 0x1B, 0x9F,
+		0x3B, 0x9F, 0xF7, 0xF7, 0xBD, 0x63, 0xEB, 0xAD,
+		0xDF, 0xB3, 0x6F, 0x5B, 0xDB, 0x8D, 0xA9, 0x5D,
+		0xE3, 0x7D, 0x77, 0x49, 0x47, 0xF5, 0xA7, 0xFD,
+		0xAB, 0x2F, 0x27, 0x35, 0x77, 0xD3, 0x49, 0xC9,
+		0x09, 0xEB, 0xB1, 0xF9, 0xBF, 0x4B, 0xCB, 0x2B,
+		0xEB, 0xEB, 0x05, 0xFF, 0x7D, 0xC7, 0x91, 0x8B,
+		0x09, 0x83, 0xB9, 0xB9, 0x69, 0x33, 0x39, 0x6B,
+		0x79, 0x75, 0x19, 0xBF, 0xBB, 0x07, 0x1D, 0xBD,
+		0x29, 0xBF, 0x39, 0x95, 0x93, 0x1D, 0x35, 0xC7,
+		0xC9, 0x4D, 0xE5, 0x97, 0x0B, 0x43, 0x9B, 0xF1,
+		0x16, 0x93, 0x03, 0x1F, 0xA5, 0xFB, 0xDB, 0xF3,
+		0x27, 0x4F, 0x27, 0x61, 0x05, 0x1F, 0xB9, 0x23,
+		0x2F, 0xC3, 0x81, 0xA9, 0x23, 0x71, 0x55, 0x55,
+		0xEB, 0xED, 0x41, 0xE5, 0xF3, 0x11, 0xF1, 0x43,
+		0x69, 0x03, 0xBD, 0x0B, 0x37, 0x0F, 0x51, 0x8F,
+		0x0B, 0xB5, 0x89, 0x5B, 0x67, 0xA9, 0xD9, 0x4F,
+		0x01, 0xF9, 0x21, 0x77, 0x37, 0x73, 0x79, 0xC5,
+		0x7F, 0x51, 0xC1, 0xCF, 0x97, 0xA1, 0x75, 0xAD,
+		0x35, 0x9D, 0xD3, 0xD3, 0xA7, 0x9D, 0x5D, 0x41,
+		0x6F, 0x65, 0x1B, 0xCF, 0xA9, 0x87, 0x91, 0x09
+	};
+	struct type86x_reply *msg = reply->message;
+	unsigned short service_rc, service_rs;
+	unsigned int reply_len, pad_len;
+	char *data;
+
+	service_rc = msg->cprbx.ccp_rtcode;
+	if (unlikely(service_rc != 0)) {
+		service_rs = msg->cprbx.ccp_rscode;
+		if (service_rc == 8 && service_rs == 66)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 65)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 770)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 783) {
+			zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
+			return -EAGAIN;
+		}
+		if (service_rc == 12 && service_rs == 769)
+			return -EINVAL;
+		if (service_rc == 8 && service_rs == 72)
+			return -EINVAL;
+		zdev->online = 0;
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+	data = msg->text;
+	reply_len = msg->length - 2;
+	if (reply_len > outputdatalength)
+		return -EINVAL;
+	/*
+	 * For all encipher requests, the length of the ciphertext (reply_len)
+	 * will always equal the modulus length. For MEX decipher requests
+	 * the output needs to get padded. Minimum pad size is 10.
+	 *
+	 * Currently, the cases where padding will be added is for:
+	 * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support
+	 *   ZERO-PAD and CRT is only supported for PKD requests)
+	 * - PCICC, always
+	 */
+	pad_len = outputdatalength - reply_len;
+	if (pad_len > 0) {
+		if (pad_len < 10)
+			return -EINVAL;
+		/* 'restore' padding left in the PCICC/PCIXCC card. */
+		if (copy_to_user(outputdata, static_pad, pad_len - 1))
+			return -EFAULT;
+		if (put_user(0, outputdata + pad_len - 1))
+			return -EFAULT;
+	}
+	/* Copy the crypto response to user space. */
+	if (copy_to_user(outputdata + pad_len, data, reply_len))
+		return -EFAULT;
+	return 0;
+}
+
+/**
+ * Copy results from a type 86 XCRB reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @xcRB: pointer to XCRB
+ *
+ * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
+ */
+static int convert_type86_xcrb(struct zcrypt_device *zdev,
+			       struct ap_message *reply,
+			       struct ica_xcRB *xcRB)
+{
+	struct type86_fmt2_msg *msg = reply->message;
+	char *data = reply->message;
+
+	/* Copy CPRB to user */
+	if (copy_to_user(xcRB->reply_control_blk_addr,
+		data + msg->fmt2.offset1, msg->fmt2.count1))
+		return -EFAULT;
+	xcRB->reply_control_blk_length = msg->fmt2.count1;
+
+	/* Copy data buffer to user */
+	if (msg->fmt2.count2)
+		if (copy_to_user(xcRB->reply_data_addr,
+			data + msg->fmt2.offset2, msg->fmt2.count2))
+			return -EFAULT;
+	xcRB->reply_data_length = msg->fmt2.count2;
+	return 0;
+}
+
+static int convert_type86_rng(struct zcrypt_device *zdev,
+			  struct ap_message *reply,
+			  char *buffer)
+{
+	struct {
+		struct type86_hdr hdr;
+		struct type86_fmt2_ext fmt2;
+		struct CPRBX cprbx;
+	} __packed * msg = reply->message;
+	char *data = reply->message;
+
+	if (msg->cprbx.ccp_rtcode != 0 || msg->cprbx.ccp_rscode != 0)
+		return -EINVAL;
+	memcpy(buffer, data + msg->fmt2.offset2, msg->fmt2.count2);
+	return msg->fmt2.count2;
+}
+
+static int convert_response_ica(struct zcrypt_device *zdev,
+			    struct ap_message *reply,
+			    char __user *outputdata,
+			    unsigned int outputdatalength)
+{
+	struct type86x_reply *msg = reply->message;
+
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *) reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		return convert_error(zdev, reply);
+	case TYPE86_RSP_CODE:
+		if (msg->cprbx.ccp_rtcode &&
+		   (msg->cprbx.ccp_rscode == 0x14f) &&
+		   (outputdatalength > 256)) {
+			if (zdev->max_exp_bit_length <= 17) {
+				zdev->max_exp_bit_length = 17;
+				return -EAGAIN;
+			} else
+				return -EINVAL;
+		}
+		if (msg->hdr.reply_code)
+			return convert_error(zdev, reply);
+		if (msg->cprbx.cprb_ver_id == 0x02)
+			return convert_type86_ica(zdev, reply,
+						  outputdata, outputdatalength);
+		/* Fall through, no break, incorrect cprb version is an unknown
+		 * response */
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+static int convert_response_xcrb(struct zcrypt_device *zdev,
+			    struct ap_message *reply,
+			    struct ica_xcRB *xcRB)
+{
+	struct type86x_reply *msg = reply->message;
+
+	/* Response type byte is the second byte in the response. */
+	switch (((unsigned char *) reply->message)[1]) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
+		return convert_error(zdev, reply);
+	case TYPE86_RSP_CODE:
+		if (msg->hdr.reply_code) {
+			memcpy(&(xcRB->status), msg->fmt2.apfs, sizeof(u32));
+			return convert_error(zdev, reply);
+		}
+		if (msg->cprbx.cprb_ver_id == 0x02)
+			return convert_type86_xcrb(zdev, reply, xcRB);
+		/* Fall through, no break, incorrect cprb version is an unknown
+		 * response */
+	default: /* Unknown response type, this should NEVER EVER happen */
+		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
+		zdev->online = 0;
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+static int convert_response_rng(struct zcrypt_device *zdev,
+				 struct ap_message *reply,
+				 char *data)
+{
+	struct type86x_reply *msg = reply->message;
+
+	switch (msg->hdr.type) {
+	case TYPE82_RSP_CODE:
+	case TYPE88_RSP_CODE:
+		return -EINVAL;
+	case TYPE86_RSP_CODE:
+		if (msg->hdr.reply_code)
+			return -EINVAL;
+		if (msg->cprbx.cprb_ver_id == 0x02)
+			return convert_type86_rng(zdev, reply, data);
+		/* Fall through, no break, incorrect cprb version is an unknown
+		 * response */
+	default: /* Unknown response type, this should NEVER EVER happen */
+		zdev->online = 0;
+		return -EAGAIN;	/* repeat the request on a different device. */
+	}
+}
+
+/**
+ * This function is called from the AP bus code after a crypto request
+ * "msg" has finished with the reply message "reply".
+ * It is called from tasklet context.
+ * @ap_dev: pointer to the AP device
+ * @msg: pointer to the AP message
+ * @reply: pointer to the AP reply message
+ */
+static void zcrypt_msgtype6_receive(struct ap_device *ap_dev,
+				  struct ap_message *msg,
+				  struct ap_message *reply)
+{
+	static struct error_hdr error_reply = {
+		.type = TYPE82_RSP_CODE,
+		.reply_code = REP82_ERROR_MACHINE_FAILURE,
+	};
+	struct response_type *resp_type =
+		(struct response_type *) msg->private;
+	struct type86x_reply *t86r;
+	int length;
+
+	/* Copy the reply message to the request message buffer. */
+	if (IS_ERR(reply)) {
+		memcpy(msg->message, &error_reply, sizeof(error_reply));
+		goto out;
+	}
+	t86r = reply->message;
+	if (t86r->hdr.type == TYPE86_RSP_CODE &&
+		 t86r->cprbx.cprb_ver_id == 0x02) {
+		switch (resp_type->type) {
+		case PCIXCC_RESPONSE_TYPE_ICA:
+			length = sizeof(struct type86x_reply)
+				+ t86r->length - 2;
+			length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length);
+			memcpy(msg->message, reply->message, length);
+			break;
+		case PCIXCC_RESPONSE_TYPE_XCRB:
+			length = t86r->fmt2.offset2 + t86r->fmt2.count2;
+			length = min(MSGTYPE06_MAX_MSG_SIZE, length);
+			memcpy(msg->message, reply->message, length);
+			break;
+		default:
+			memcpy(msg->message, &error_reply,
+			       sizeof(error_reply));
+		}
+	} else
+		memcpy(msg->message, reply->message, sizeof(error_reply));
+out:
+	complete(&(resp_type->work));
+}
+
+static atomic_t zcrypt_step = ATOMIC_INIT(0);
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to handle a modexpo request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @mex: pointer to the modexpo request buffer
+ */
+static long zcrypt_msgtype6_modexpo(struct zcrypt_device *zdev,
+				  struct ica_rsa_modexpo *mex)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_ICA,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0)
+		rc = convert_response_ica(zdev, &ap_msg, mex->outputdata,
+					  mex->outputdatalength);
+	else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	free_page((unsigned long) ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to handle a modexpo_crt request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @crt: pointer to the modexpoc_crt request buffer
+ */
+static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_device *zdev,
+				      struct ica_rsa_modexpo_crt *crt)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_ICA,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0)
+		rc = convert_response_ica(zdev, &ap_msg, crt->outputdata,
+					  crt->outputdatalength);
+	else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	free_page((unsigned long) ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to handle a send_cprb request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @xcRB: pointer to the send_cprb request buffer
+ */
+static long zcrypt_msgtype6_send_cprb(struct zcrypt_device *zdev,
+				    struct ica_xcRB *xcRB)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_XCRB,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rc = XCRB_msg_to_type6CPRB_msgX(zdev, &ap_msg, xcRB);
+	if (rc)
+		goto out_free;
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0)
+		rc = convert_response_xcrb(zdev, &ap_msg, xcRB);
+	else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+out_free:
+	kzfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The request distributor calls this function if it picked the PCIXCC/CEX2C
+ * device to generate random data.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ *	  PCIXCC/CEX2C device to the request distributor
+ * @buffer: pointer to a memory page to return random data
+ */
+
+static long zcrypt_msgtype6_rng(struct zcrypt_device *zdev,
+				    char *buffer)
+{
+	struct ap_message ap_msg;
+	struct response_type resp_type = {
+		.type = PCIXCC_RESPONSE_TYPE_XCRB,
+	};
+	int rc;
+
+	ap_init_message(&ap_msg);
+	ap_msg.message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
+	if (!ap_msg.message)
+		return -ENOMEM;
+	ap_msg.receive = zcrypt_msgtype6_receive;
+	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+				atomic_inc_return(&zcrypt_step);
+	ap_msg.private = &resp_type;
+	rng_type6CPRB_msgX(zdev->ap_dev, &ap_msg, ZCRYPT_RNG_BUFFER_SIZE);
+	init_completion(&resp_type.work);
+	ap_queue_message(zdev->ap_dev, &ap_msg);
+	rc = wait_for_completion_interruptible(&resp_type.work);
+	if (rc == 0)
+		rc = convert_response_rng(zdev, &ap_msg, buffer);
+	else
+		/* Signal pending. */
+		ap_cancel_message(zdev->ap_dev, &ap_msg);
+	kfree(ap_msg.message);
+	return rc;
+}
+
+/**
+ * The crypto operations for a PCIXCC/CEX2C card.
+ */
+static struct zcrypt_ops zcrypt_msgtype6_norng_ops = {
+	.owner = THIS_MODULE,
+	.variant = MSGTYPE06_VARIANT_NORNG,
+	.rsa_modexpo = zcrypt_msgtype6_modexpo,
+	.rsa_modexpo_crt = zcrypt_msgtype6_modexpo_crt,
+	.send_cprb = zcrypt_msgtype6_send_cprb,
+};
+
+static struct zcrypt_ops zcrypt_msgtype6_ops = {
+	.owner = THIS_MODULE,
+	.variant = MSGTYPE06_VARIANT_DEFAULT,
+	.rsa_modexpo = zcrypt_msgtype6_modexpo,
+	.rsa_modexpo_crt = zcrypt_msgtype6_modexpo_crt,
+	.send_cprb = zcrypt_msgtype6_send_cprb,
+	.rng = zcrypt_msgtype6_rng,
+};
+
+int __init zcrypt_msgtype6_init(void)
+{
+	zcrypt_msgtype_register(&zcrypt_msgtype6_norng_ops);
+	zcrypt_msgtype_register(&zcrypt_msgtype6_ops);
+	return 0;
+}
+
+void __exit zcrypt_msgtype6_exit(void)
+{
+	zcrypt_msgtype_unregister(&zcrypt_msgtype6_norng_ops);
+	zcrypt_msgtype_unregister(&zcrypt_msgtype6_ops);
+}
+
+module_init(zcrypt_msgtype6_init);
+module_exit(zcrypt_msgtype6_exit);
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.h b/drivers/s390/crypto/zcrypt_msgtype6.h
new file mode 100644
index 00000000000..1e500d3c073
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_msgtype6.h
@@ -0,0 +1,169 @@
+/*
+ *  zcrypt 2.1.0
+ *
+ *  Copyright IBM Corp. 2001, 2012
+ *  Author(s): Robert Burroughs
+ *	       Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _ZCRYPT_MSGTYPE6_H_
+#define _ZCRYPT_MSGTYPE6_H_
+
+#include <asm/zcrypt.h>
+
+#define MSGTYPE06_NAME			"zcrypt_msgtype6"
+#define MSGTYPE06_VARIANT_DEFAULT	0
+#define MSGTYPE06_VARIANT_NORNG		1
+
+#define MSGTYPE06_MAX_MSG_SIZE		(12*1024)
+
+/**
+ * The type 6 message family is associated with PCICC or PCIXCC cards.
+ *
+ * It contains a message header followed by a CPRB, both of which
+ * are described below.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type6_hdr {
+	unsigned char reserved1;	/* 0x00				*/
+	unsigned char type;		/* 0x06				*/
+	unsigned char reserved2[2];	/* 0x0000			*/
+	unsigned char right[4];		/* 0x00000000			*/
+	unsigned char reserved3[2];	/* 0x0000			*/
+	unsigned char reserved4[2];	/* 0x0000			*/
+	unsigned char apfs[4];		/* 0x00000000			*/
+	unsigned int  offset1;		/* 0x00000058 (offset to CPRB)	*/
+	unsigned int  offset2;		/* 0x00000000			*/
+	unsigned int  offset3;		/* 0x00000000			*/
+	unsigned int  offset4;		/* 0x00000000			*/
+	unsigned char agent_id[16];	/* PCICC:			*/
+					/*    0x0100			*/
+					/*    0x4343412d4150504c202020	*/
+					/*    0x010101			*/
+					/* PCIXCC:			*/
+					/*    0x4341000000000000	*/
+					/*    0x0000000000000000	*/
+	unsigned char rqid[2];		/* rqid.  internal to 603	*/
+	unsigned char reserved5[2];	/* 0x0000			*/
+	unsigned char function_code[2];	/* for PKD, 0x5044 (ascii 'PD')	*/
+	unsigned char reserved6[2];	/* 0x0000			*/
+	unsigned int  ToCardLen1;	/* (request CPRB len + 3) & -4	*/
+	unsigned int  ToCardLen2;	/* db len 0x00000000 for PKD	*/
+	unsigned int  ToCardLen3;	/* 0x00000000			*/
+	unsigned int  ToCardLen4;	/* 0x00000000			*/
+	unsigned int  FromCardLen1;	/* response buffer length	*/
+	unsigned int  FromCardLen2;	/* db len 0x00000000 for PKD	*/
+	unsigned int  FromCardLen3;	/* 0x00000000			*/
+	unsigned int  FromCardLen4;	/* 0x00000000			*/
+} __packed;
+
+/**
+ * The type 86 message family is associated with PCICC and PCIXCC cards.
+ *
+ * It contains a message header followed by a CPRB.  The CPRB is
+ * the same as the request CPRB, which is described above.
+ *
+ * If format is 1, an error condition exists and no data beyond
+ * the 8-byte message header is of interest.
+ *
+ * The non-error message is shown below.
+ *
+ * Note that all reserved fields must be zeroes.
+ */
+struct type86_hdr {
+	unsigned char reserved1;	/* 0x00				*/
+	unsigned char type;		/* 0x86				*/
+	unsigned char format;		/* 0x01 (error) or 0x02 (ok)	*/
+	unsigned char reserved2;	/* 0x00				*/
+	unsigned char reply_code;	/* reply code (see above)	*/
+	unsigned char reserved3[3];	/* 0x000000			*/
+} __packed;
+
+#define TYPE86_RSP_CODE 0x86
+#define TYPE86_FMT2	0x02
+
+struct type86_fmt2_ext {
+	unsigned char	  reserved[4];	/* 0x00000000			*/
+	unsigned char	  apfs[4];	/* final status			*/
+	unsigned int	  count1;	/* length of CPRB + parameters	*/
+	unsigned int	  offset1;	/* offset to CPRB		*/
+	unsigned int	  count2;	/* 0x00000000			*/
+	unsigned int	  offset2;	/* db offset 0x00000000 for PKD	*/
+	unsigned int	  count3;	/* 0x00000000			*/
+	unsigned int	  offset3;	/* 0x00000000			*/
+	unsigned int	  count4;	/* 0x00000000			*/
+	unsigned int	  offset4;	/* 0x00000000			*/
+} __packed;
+
+/**
+ * Prepare a type6 CPRB message for random number generation
+ *
+ * @ap_dev: AP device pointer
+ * @ap_msg: pointer to AP message
+ */
+static inline void rng_type6CPRB_msgX(struct ap_device *ap_dev,
+			       struct ap_message *ap_msg,
+			       unsigned random_number_length)
+{
+	struct {
+		struct type6_hdr hdr;
+		struct CPRBX cprbx;
+		char function_code[2];
+		short int rule_length;
+		char rule[8];
+		short int verb_length;
+		short int key_length;
+	} __packed * msg = ap_msg->message;
+	static struct type6_hdr static_type6_hdrX = {
+		.type		= 0x06,
+		.offset1	= 0x00000058,
+		.agent_id	= {'C', 'A'},
+		.function_code	= {'R', 'L'},
+		.ToCardLen1	= sizeof(*msg) - sizeof(msg->hdr),
+		.FromCardLen1	= sizeof(*msg) - sizeof(msg->hdr),
+	};
+	static struct CPRBX local_cprbx = {
+		.cprb_len	= 0x00dc,
+		.cprb_ver_id	= 0x02,
+		.func_id	= {0x54, 0x32},
+		.req_parml	= sizeof(*msg) - sizeof(msg->hdr) -
+				  sizeof(msg->cprbx),
+		.rpl_msgbl	= sizeof(*msg) - sizeof(msg->hdr),
+	};
+
+	msg->hdr = static_type6_hdrX;
+	msg->hdr.FromCardLen2 = random_number_length,
+	msg->cprbx = local_cprbx;
+	msg->cprbx.rpl_datal = random_number_length,
+	msg->cprbx.domain = AP_QID_QUEUE(ap_dev->qid);
+	memcpy(msg->function_code, msg->hdr.function_code, 0x02);
+	msg->rule_length = 0x0a;
+	memcpy(msg->rule, "RANDOM  ", 8);
+	msg->verb_length = 0x02;
+	msg->key_length = 0x02;
+	ap_msg->length = sizeof(*msg);
+}
+
+int zcrypt_msgtype6_init(void);
+void zcrypt_msgtype6_exit(void);
+
+#endif /* _ZCRYPT_MSGTYPE6_H_ */
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index ccb4f8b60c7..c7275e303a0 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -1,13 +1,14 @@
 /*
  *  zcrypt 2.1.0
  *
- *  Copyright IBM Corp. 2001, 2006
+ *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *
  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
  *				  Ralph Wuerthner <rwuerthn@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -35,9 +36,10 @@
 #include "ap_bus.h"
 #include "zcrypt_api.h"
 #include "zcrypt_error.h"
-#include "zcrypt_pcicc.h"
+#include "zcrypt_msgtype6.h"
 #include "zcrypt_pcixcc.h"
 #include "zcrypt_cca_key.h"
+#include "zcrypt_msgtype6.h"
 
 #define PCIXCC_MIN_MOD_SIZE	 16	/*  128 bits	*/
 #define PCIXCC_MIN_MOD_SIZE_OLD	 64	/*  512 bits	*/
@@ -75,14 +77,12 @@ static struct ap_device_id zcrypt_pcixcc_ids[] = {
 
 MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_ids);
 MODULE_AUTHOR("IBM Corporation");
-MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, "
-		   "Copyright IBM Corp. 2001, 2006");
+MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " \
+		   "Copyright IBM Corp. 2001, 2012");
 MODULE_LICENSE("GPL");
 
 static int zcrypt_pcixcc_probe(struct ap_device *ap_dev);
 static void zcrypt_pcixcc_remove(struct ap_device *ap_dev);
-static void zcrypt_pcixcc_receive(struct ap_device *, struct ap_message *,
-				 struct ap_message *);
 
 static struct ap_driver zcrypt_pcixcc_driver = {
 	.probe = zcrypt_pcixcc_probe,
@@ -92,766 +92,6 @@ static struct ap_driver zcrypt_pcixcc_driver = {
 };
 
 /**
- * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C
- * card in a type6 message. The 3 fields that must be filled in at execution
- * time are  req_parml, rpl_parml and usage_domain.
- * Everything about this interface is ascii/big-endian, since the
- * device does *not* have 'Intel inside'.
- *
- * The CPRBX is followed immediately by the parm block.
- * The parm block contains:
- * - function code ('PD' 0x5044 or 'PK' 0x504B)
- * - rule block (one of:)
- *   + 0x000A 'PKCS-1.2' (MCL2 'PD')
- *   + 0x000A 'ZERO-PAD' (MCL2 'PK')
- *   + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD')
- *   + 0x000A 'MRP     ' (MCL3 'PK' or CEX2C 'PK')
- * - VUD block
- */
-static struct CPRBX static_cprbx = {
-	.cprb_len	=  0x00DC,
-	.cprb_ver_id	=  0x02,
-	.func_id	= {0x54,0x32},
-};
-
-/**
- * Convert a ICAMEX message to a type6 MEX message.
- *
- * @zdev: crypto device pointer
- * @ap_msg: pointer to AP message
- * @mex: pointer to user input data
- *
- * Returns 0 on success or -EFAULT.
- */
-static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev,
-				       struct ap_message *ap_msg,
-				       struct ica_rsa_modexpo *mex)
-{
-	static struct type6_hdr static_type6_hdrX = {
-		.type		=  0x06,
-		.offset1	=  0x00000058,
-		.agent_id	= {'C','A',},
-		.function_code	= {'P','K'},
-	};
-	static struct function_and_rules_block static_pke_fnr = {
-		.function_code	= {'P','K'},
-		.ulen		= 10,
-		.only_rule	= {'M','R','P',' ',' ',' ',' ',' '}
-	};
-	static struct function_and_rules_block static_pke_fnr_MCL2 = {
-		.function_code	= {'P','K'},
-		.ulen		= 10,
-		.only_rule	= {'Z','E','R','O','-','P','A','D'}
-	};
-	struct {
-		struct type6_hdr hdr;
-		struct CPRBX cprbx;
-		struct function_and_rules_block fr;
-		unsigned short length;
-		char text[0];
-	} __attribute__((packed)) *msg = ap_msg->message;
-	int size;
-
-	/* VUD.ciphertext */
-	msg->length = mex->inputdatalength + 2;
-	if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength))
-		return -EFAULT;
-
-	/* Set up key which is located after the variable length text. */
-	size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1);
-	if (size < 0)
-		return size;
-	size += sizeof(*msg) + mex->inputdatalength;
-
-	/* message header, cprbx and f&r */
-	msg->hdr = static_type6_hdrX;
-	msg->hdr.ToCardLen1 = size - sizeof(msg->hdr);
-	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
-
-	msg->cprbx = static_cprbx;
-	msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
-	msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1;
-
-	msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
-		static_pke_fnr_MCL2 : static_pke_fnr;
-
-	msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx);
-
-	ap_msg->length = size;
-	return 0;
-}
-
-/**
- * Convert a ICACRT message to a type6 CRT message.
- *
- * @zdev: crypto device pointer
- * @ap_msg: pointer to AP message
- * @crt: pointer to user input data
- *
- * Returns 0 on success or -EFAULT.
- */
-static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev,
-				       struct ap_message *ap_msg,
-				       struct ica_rsa_modexpo_crt *crt)
-{
-	static struct type6_hdr static_type6_hdrX = {
-		.type		=  0x06,
-		.offset1	=  0x00000058,
-		.agent_id	= {'C','A',},
-		.function_code	= {'P','D'},
-	};
-	static struct function_and_rules_block static_pkd_fnr = {
-		.function_code	= {'P','D'},
-		.ulen		= 10,
-		.only_rule	= {'Z','E','R','O','-','P','A','D'}
-	};
-
-	static struct function_and_rules_block static_pkd_fnr_MCL2 = {
-		.function_code	= {'P','D'},
-		.ulen		= 10,
-		.only_rule	= {'P','K','C','S','-','1','.','2'}
-	};
-	struct {
-		struct type6_hdr hdr;
-		struct CPRBX cprbx;
-		struct function_and_rules_block fr;
-		unsigned short length;
-		char text[0];
-	} __attribute__((packed)) *msg = ap_msg->message;
-	int size;
-
-	/* VUD.ciphertext */
-	msg->length = crt->inputdatalength + 2;
-	if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength))
-		return -EFAULT;
-
-	/* Set up key which is located after the variable length text. */
-	size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1);
-	if (size < 0)
-		return size;
-	size += sizeof(*msg) + crt->inputdatalength;	/* total size of msg */
-
-	/* message header, cprbx and f&r */
-	msg->hdr = static_type6_hdrX;
-	msg->hdr.ToCardLen1 = size -  sizeof(msg->hdr);
-	msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
-
-	msg->cprbx = static_cprbx;
-	msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
-	msg->cprbx.req_parml = msg->cprbx.rpl_msgbl =
-		size - sizeof(msg->hdr) - sizeof(msg->cprbx);
-
-	msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
-		static_pkd_fnr_MCL2 : static_pkd_fnr;
-
-	ap_msg->length = size;
-	return 0;
-}
-
-/**
- * Convert a XCRB message to a type6 CPRB message.
- *
- * @zdev: crypto device pointer
- * @ap_msg: pointer to AP message
- * @xcRB: pointer to user input data
- *
- * Returns 0 on success or -EFAULT, -EINVAL.
- */
-struct type86_fmt2_msg {
-	struct type86_hdr hdr;
-	struct type86_fmt2_ext fmt2;
-} __attribute__((packed));
-
-static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
-				       struct ap_message *ap_msg,
-				       struct ica_xcRB *xcRB)
-{
-	static struct type6_hdr static_type6_hdrX = {
-		.type		=  0x06,
-		.offset1	=  0x00000058,
-	};
-	struct {
-		struct type6_hdr hdr;
-		struct CPRBX cprbx;
-	} __attribute__((packed)) *msg = ap_msg->message;
-
-	int rcblen = CEIL4(xcRB->request_control_blk_length);
-	int replylen;
-	char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen;
-	char *function_code;
-
-	/* length checks */
-	ap_msg->length = sizeof(struct type6_hdr) +
-		CEIL4(xcRB->request_control_blk_length) +
-		xcRB->request_data_length;
-	if (ap_msg->length > PCIXCC_MAX_XCRB_MESSAGE_SIZE)
-		return -EINVAL;
-	replylen = sizeof(struct type86_fmt2_msg) +
-		CEIL4(xcRB->reply_control_blk_length) +
-		xcRB->reply_data_length;
-	if (replylen > PCIXCC_MAX_XCRB_MESSAGE_SIZE)
-		return -EINVAL;
-
-	/* prepare type6 header */
-	msg->hdr = static_type6_hdrX;
-	memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID));
-	msg->hdr.ToCardLen1 = xcRB->request_control_blk_length;
-	if (xcRB->request_data_length) {
-		msg->hdr.offset2 = msg->hdr.offset1 + rcblen;
-		msg->hdr.ToCardLen2 = xcRB->request_data_length;
-	}
-	msg->hdr.FromCardLen1 = xcRB->reply_control_blk_length;
-	msg->hdr.FromCardLen2 = xcRB->reply_data_length;
-
-	/* prepare CPRB */
-	if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr,
-		    xcRB->request_control_blk_length))
-		return -EFAULT;
-	if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
-	    xcRB->request_control_blk_length)
-		return -EINVAL;
-	function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len;
-	memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code));
-
-	if (memcmp(function_code, "US", 2) == 0)
-		ap_msg->special = 1;
-	else
-		ap_msg->special = 0;
-
-	/* copy data block */
-	if (xcRB->request_data_length &&
-	    copy_from_user(req_data, xcRB->request_data_address,
-		xcRB->request_data_length))
-		return -EFAULT;
-	return 0;
-}
-
-/**
- * Prepare a type6 CPRB message for random number generation
- *
- * @ap_dev: AP device pointer
- * @ap_msg: pointer to AP message
- */
-static void rng_type6CPRB_msgX(struct ap_device *ap_dev,
-			       struct ap_message *ap_msg,
-			       unsigned random_number_length)
-{
-	struct {
-		struct type6_hdr hdr;
-		struct CPRBX cprbx;
-		char function_code[2];
-		short int rule_length;
-		char rule[8];
-		short int verb_length;
-		short int key_length;
-	} __attribute__((packed)) *msg = ap_msg->message;
-	static struct type6_hdr static_type6_hdrX = {
-		.type		= 0x06,
-		.offset1	= 0x00000058,
-		.agent_id	= {'C', 'A'},
-		.function_code	= {'R', 'L'},
-		.ToCardLen1	= sizeof *msg - sizeof(msg->hdr),
-		.FromCardLen1	= sizeof *msg - sizeof(msg->hdr),
-	};
-	static struct CPRBX local_cprbx = {
-		.cprb_len	= 0x00dc,
-		.cprb_ver_id	= 0x02,
-		.func_id	= {0x54, 0x32},
-		.req_parml	= sizeof *msg - sizeof(msg->hdr) -
-				  sizeof(msg->cprbx),
-		.rpl_msgbl	= sizeof *msg - sizeof(msg->hdr),
-	};
-
-	msg->hdr = static_type6_hdrX;
-	msg->hdr.FromCardLen2 = random_number_length,
-	msg->cprbx = local_cprbx;
-	msg->cprbx.rpl_datal = random_number_length,
-	msg->cprbx.domain = AP_QID_QUEUE(ap_dev->qid);
-	memcpy(msg->function_code, msg->hdr.function_code, 0x02);
-	msg->rule_length = 0x0a;
-	memcpy(msg->rule, "RANDOM  ", 8);
-	msg->verb_length = 0x02;
-	msg->key_length = 0x02;
-	ap_msg->length = sizeof *msg;
-}
-
-/**
- * Copy results from a type 86 ICA reply message back to user space.
- *
- * @zdev: crypto device pointer
- * @reply: reply AP message.
- * @data: pointer to user output data
- * @length: size of user output data
- *
- * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
- */
-struct type86x_reply {
-	struct type86_hdr hdr;
-	struct type86_fmt2_ext fmt2;
-	struct CPRBX cprbx;
-	unsigned char pad[4];	/* 4 byte function code/rules block ? */
-	unsigned short length;
-	char text[0];
-} __attribute__((packed));
-
-static int convert_type86_ica(struct zcrypt_device *zdev,
-			  struct ap_message *reply,
-			  char __user *outputdata,
-			  unsigned int outputdatalength)
-{
-	static unsigned char static_pad[] = {
-		0x00,0x02,
-		0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD,
-		0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57,
-		0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B,
-		0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39,
-		0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5,
-		0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D,
-		0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB,
-		0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F,
-		0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9,
-		0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45,
-		0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9,
-		0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F,
-		0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD,
-		0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D,
-		0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD,
-		0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9,
-		0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B,
-		0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B,
-		0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B,
-		0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD,
-		0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7,
-		0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1,
-		0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3,
-		0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23,
-		0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55,
-		0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43,
-		0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F,
-		0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F,
-		0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5,
-		0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD,
-		0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41,
-		0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09
-	};
-	struct type86x_reply *msg = reply->message;
-	unsigned short service_rc, service_rs;
-	unsigned int reply_len, pad_len;
-	char *data;
-
-	service_rc = msg->cprbx.ccp_rtcode;
-	if (unlikely(service_rc != 0)) {
-		service_rs = msg->cprbx.ccp_rscode;
-		if (service_rc == 8 && service_rs == 66)
-			return -EINVAL;
-		if (service_rc == 8 && service_rs == 65)
-			return -EINVAL;
-		if (service_rc == 8 && service_rs == 770)
-			return -EINVAL;
-		if (service_rc == 8 && service_rs == 783) {
-			zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
-			return -EAGAIN;
-		}
-		if (service_rc == 12 && service_rs == 769)
-			return -EINVAL;
-		if (service_rc == 8 && service_rs == 72)
-			return -EINVAL;
-		zdev->online = 0;
-		return -EAGAIN;	/* repeat the request on a different device. */
-	}
-	data = msg->text;
-	reply_len = msg->length - 2;
-	if (reply_len > outputdatalength)
-		return -EINVAL;
-	/*
-	 * For all encipher requests, the length of the ciphertext (reply_len)
-	 * will always equal the modulus length. For MEX decipher requests
-	 * the output needs to get padded. Minimum pad size is 10.
-	 *
-	 * Currently, the cases where padding will be added is for:
-	 * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support
-	 *   ZERO-PAD and CRT is only supported for PKD requests)
-	 * - PCICC, always
-	 */
-	pad_len = outputdatalength - reply_len;
-	if (pad_len > 0) {
-		if (pad_len < 10)
-			return -EINVAL;
-		/* 'restore' padding left in the PCICC/PCIXCC card. */
-		if (copy_to_user(outputdata, static_pad, pad_len - 1))
-			return -EFAULT;
-		if (put_user(0, outputdata + pad_len - 1))
-			return -EFAULT;
-	}
-	/* Copy the crypto response to user space. */
-	if (copy_to_user(outputdata + pad_len, data, reply_len))
-		return -EFAULT;
-	return 0;
-}
-
-/**
- * Copy results from a type 86 XCRB reply message back to user space.
- *
- * @zdev: crypto device pointer
- * @reply: reply AP message.
- * @xcRB: pointer to XCRB
- *
- * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
- */
-static int convert_type86_xcrb(struct zcrypt_device *zdev,
-			       struct ap_message *reply,
-			       struct ica_xcRB *xcRB)
-{
-	struct type86_fmt2_msg *msg = reply->message;
-	char *data = reply->message;
-
-	/* Copy CPRB to user */
-	if (copy_to_user(xcRB->reply_control_blk_addr,
-		data + msg->fmt2.offset1, msg->fmt2.count1))
-		return -EFAULT;
-	xcRB->reply_control_blk_length = msg->fmt2.count1;
-
-	/* Copy data buffer to user */
-	if (msg->fmt2.count2)
-		if (copy_to_user(xcRB->reply_data_addr,
-			data + msg->fmt2.offset2, msg->fmt2.count2))
-			return -EFAULT;
-	xcRB->reply_data_length = msg->fmt2.count2;
-	return 0;
-}
-
-static int convert_type86_rng(struct zcrypt_device *zdev,
-			  struct ap_message *reply,
-			  char *buffer)
-{
-	struct {
-		struct type86_hdr hdr;
-		struct type86_fmt2_ext fmt2;
-		struct CPRBX cprbx;
-	} __attribute__((packed)) *msg = reply->message;
-	char *data = reply->message;
-
-	if (msg->cprbx.ccp_rtcode != 0 || msg->cprbx.ccp_rscode != 0)
-		return -EINVAL;
-	memcpy(buffer, data + msg->fmt2.offset2, msg->fmt2.count2);
-	return msg->fmt2.count2;
-}
-
-static int convert_response_ica(struct zcrypt_device *zdev,
-			    struct ap_message *reply,
-			    char __user *outputdata,
-			    unsigned int outputdatalength)
-{
-	struct type86x_reply *msg = reply->message;
-
-	/* Response type byte is the second byte in the response. */
-	switch (((unsigned char *) reply->message)[1]) {
-	case TYPE82_RSP_CODE:
-	case TYPE88_RSP_CODE:
-		return convert_error(zdev, reply);
-	case TYPE86_RSP_CODE:
-		if (msg->cprbx.ccp_rtcode &&
-		   (msg->cprbx.ccp_rscode == 0x14f) &&
-		   (outputdatalength > 256)) {
-			if (zdev->max_exp_bit_length <= 17) {
-				zdev->max_exp_bit_length = 17;
-				return -EAGAIN;
-			} else
-				return -EINVAL;
-		}
-		if (msg->hdr.reply_code)
-			return convert_error(zdev, reply);
-		if (msg->cprbx.cprb_ver_id == 0x02)
-			return convert_type86_ica(zdev, reply,
-						  outputdata, outputdatalength);
-		/* Fall through, no break, incorrect cprb version is an unknown
-		 * response */
-	default: /* Unknown response type, this should NEVER EVER happen */
-		zdev->online = 0;
-		return -EAGAIN;	/* repeat the request on a different device. */
-	}
-}
-
-static int convert_response_xcrb(struct zcrypt_device *zdev,
-			    struct ap_message *reply,
-			    struct ica_xcRB *xcRB)
-{
-	struct type86x_reply *msg = reply->message;
-
-	/* Response type byte is the second byte in the response. */
-	switch (((unsigned char *) reply->message)[1]) {
-	case TYPE82_RSP_CODE:
-	case TYPE88_RSP_CODE:
-		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
-		return convert_error(zdev, reply);
-	case TYPE86_RSP_CODE:
-		if (msg->hdr.reply_code) {
-			memcpy(&(xcRB->status), msg->fmt2.apfs, sizeof(u32));
-			return convert_error(zdev, reply);
-		}
-		if (msg->cprbx.cprb_ver_id == 0x02)
-			return convert_type86_xcrb(zdev, reply, xcRB);
-		/* Fall through, no break, incorrect cprb version is an unknown
-		 * response */
-	default: /* Unknown response type, this should NEVER EVER happen */
-		xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
-		zdev->online = 0;
-		return -EAGAIN;	/* repeat the request on a different device. */
-	}
-}
-
-static int convert_response_rng(struct zcrypt_device *zdev,
-				 struct ap_message *reply,
-				 char *data)
-{
-	struct type86x_reply *msg = reply->message;
-
-	switch (msg->hdr.type) {
-	case TYPE82_RSP_CODE:
-	case TYPE88_RSP_CODE:
-		return -EINVAL;
-	case TYPE86_RSP_CODE:
-		if (msg->hdr.reply_code)
-			return -EINVAL;
-		if (msg->cprbx.cprb_ver_id == 0x02)
-			return convert_type86_rng(zdev, reply, data);
-		/* Fall through, no break, incorrect cprb version is an unknown
-		 * response */
-	default: /* Unknown response type, this should NEVER EVER happen */
-		zdev->online = 0;
-		return -EAGAIN;	/* repeat the request on a different device. */
-	}
-}
-
-/**
- * This function is called from the AP bus code after a crypto request
- * "msg" has finished with the reply message "reply".
- * It is called from tasklet context.
- * @ap_dev: pointer to the AP device
- * @msg: pointer to the AP message
- * @reply: pointer to the AP reply message
- */
-static void zcrypt_pcixcc_receive(struct ap_device *ap_dev,
-				  struct ap_message *msg,
-				  struct ap_message *reply)
-{
-	static struct error_hdr error_reply = {
-		.type = TYPE82_RSP_CODE,
-		.reply_code = REP82_ERROR_MACHINE_FAILURE,
-	};
-	struct response_type *resp_type =
-		(struct response_type *) msg->private;
-	struct type86x_reply *t86r;
-	int length;
-
-	/* Copy the reply message to the request message buffer. */
-	if (IS_ERR(reply)) {
-		memcpy(msg->message, &error_reply, sizeof(error_reply));
-		goto out;
-	}
-	t86r = reply->message;
-	if (t86r->hdr.type == TYPE86_RSP_CODE &&
-		 t86r->cprbx.cprb_ver_id == 0x02) {
-		switch (resp_type->type) {
-		case PCIXCC_RESPONSE_TYPE_ICA:
-			length = sizeof(struct type86x_reply)
-				+ t86r->length - 2;
-			length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length);
-			memcpy(msg->message, reply->message, length);
-			break;
-		case PCIXCC_RESPONSE_TYPE_XCRB:
-			length = t86r->fmt2.offset2 + t86r->fmt2.count2;
-			length = min(PCIXCC_MAX_XCRB_MESSAGE_SIZE, length);
-			memcpy(msg->message, reply->message, length);
-			break;
-		default:
-			memcpy(msg->message, &error_reply, sizeof error_reply);
-		}
-	} else
-		memcpy(msg->message, reply->message, sizeof error_reply);
-out:
-	complete(&(resp_type->work));
-}
-
-static atomic_t zcrypt_step = ATOMIC_INIT(0);
-
-/**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
- * device to handle a modexpo request.
- * @zdev: pointer to zcrypt_device structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
- * @mex: pointer to the modexpo request buffer
- */
-static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev,
-				  struct ica_rsa_modexpo *mex)
-{
-	struct ap_message ap_msg;
-	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_ICA,
-	};
-	int rc;
-
-	ap_init_message(&ap_msg);
-	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!ap_msg.message)
-		return -ENOMEM;
-	ap_msg.receive = zcrypt_pcixcc_receive;
-	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
-				atomic_inc_return(&zcrypt_step);
-	ap_msg.private = &resp_type;
-	rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex);
-	if (rc)
-		goto out_free;
-	init_completion(&resp_type.work);
-	ap_queue_message(zdev->ap_dev, &ap_msg);
-	rc = wait_for_completion_interruptible(&resp_type.work);
-	if (rc == 0)
-		rc = convert_response_ica(zdev, &ap_msg, mex->outputdata,
-					  mex->outputdatalength);
-	else
-		/* Signal pending. */
-		ap_cancel_message(zdev->ap_dev, &ap_msg);
-out_free:
-	free_page((unsigned long) ap_msg.message);
-	return rc;
-}
-
-/**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
- * device to handle a modexpo_crt request.
- * @zdev: pointer to zcrypt_device structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
- * @crt: pointer to the modexpoc_crt request buffer
- */
-static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev,
-				      struct ica_rsa_modexpo_crt *crt)
-{
-	struct ap_message ap_msg;
-	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_ICA,
-	};
-	int rc;
-
-	ap_init_message(&ap_msg);
-	ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!ap_msg.message)
-		return -ENOMEM;
-	ap_msg.receive = zcrypt_pcixcc_receive;
-	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
-				atomic_inc_return(&zcrypt_step);
-	ap_msg.private = &resp_type;
-	rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt);
-	if (rc)
-		goto out_free;
-	init_completion(&resp_type.work);
-	ap_queue_message(zdev->ap_dev, &ap_msg);
-	rc = wait_for_completion_interruptible(&resp_type.work);
-	if (rc == 0)
-		rc = convert_response_ica(zdev, &ap_msg, crt->outputdata,
-					  crt->outputdatalength);
-	else
-		/* Signal pending. */
-		ap_cancel_message(zdev->ap_dev, &ap_msg);
-out_free:
-	free_page((unsigned long) ap_msg.message);
-	return rc;
-}
-
-/**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
- * device to handle a send_cprb request.
- * @zdev: pointer to zcrypt_device structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
- * @xcRB: pointer to the send_cprb request buffer
- */
-static long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev,
-				    struct ica_xcRB *xcRB)
-{
-	struct ap_message ap_msg;
-	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_XCRB,
-	};
-	int rc;
-
-	ap_init_message(&ap_msg);
-	ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
-	if (!ap_msg.message)
-		return -ENOMEM;
-	ap_msg.receive = zcrypt_pcixcc_receive;
-	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
-				atomic_inc_return(&zcrypt_step);
-	ap_msg.private = &resp_type;
-	rc = XCRB_msg_to_type6CPRB_msgX(zdev, &ap_msg, xcRB);
-	if (rc)
-		goto out_free;
-	init_completion(&resp_type.work);
-	ap_queue_message(zdev->ap_dev, &ap_msg);
-	rc = wait_for_completion_interruptible(&resp_type.work);
-	if (rc == 0)
-		rc = convert_response_xcrb(zdev, &ap_msg, xcRB);
-	else
-		/* Signal pending. */
-		ap_cancel_message(zdev->ap_dev, &ap_msg);
-out_free:
-	kzfree(ap_msg.message);
-	return rc;
-}
-
-/**
- * The request distributor calls this function if it picked the PCIXCC/CEX2C
- * device to generate random data.
- * @zdev: pointer to zcrypt_device structure that identifies the
- *	  PCIXCC/CEX2C device to the request distributor
- * @buffer: pointer to a memory page to return random data
- */
-
-static long zcrypt_pcixcc_rng(struct zcrypt_device *zdev,
-				    char *buffer)
-{
-	struct ap_message ap_msg;
-	struct response_type resp_type = {
-		.type = PCIXCC_RESPONSE_TYPE_XCRB,
-	};
-	int rc;
-
-	ap_init_message(&ap_msg);
-	ap_msg.message = kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL);
-	if (!ap_msg.message)
-		return -ENOMEM;
-	ap_msg.receive = zcrypt_pcixcc_receive;
-	ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
-				atomic_inc_return(&zcrypt_step);
-	ap_msg.private = &resp_type;
-	rng_type6CPRB_msgX(zdev->ap_dev, &ap_msg, ZCRYPT_RNG_BUFFER_SIZE);
-	init_completion(&resp_type.work);
-	ap_queue_message(zdev->ap_dev, &ap_msg);
-	rc = wait_for_completion_interruptible(&resp_type.work);
-	if (rc == 0)
-		rc = convert_response_rng(zdev, &ap_msg, buffer);
-	else
-		/* Signal pending. */
-		ap_cancel_message(zdev->ap_dev, &ap_msg);
-	kfree(ap_msg.message);
-	return rc;
-}
-
-/**
- * The crypto operations for a PCIXCC/CEX2C card.
- */
-static struct zcrypt_ops zcrypt_pcixcc_ops = {
-	.rsa_modexpo = zcrypt_pcixcc_modexpo,
-	.rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt,
-	.send_cprb = zcrypt_pcixcc_send_cprb,
-};
-
-static struct zcrypt_ops zcrypt_pcixcc_with_rng_ops = {
-	.rsa_modexpo = zcrypt_pcixcc_modexpo,
-	.rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt,
-	.send_cprb = zcrypt_pcixcc_send_cprb,
-	.rng = zcrypt_pcixcc_rng,
-};
-
-/**
  * Micro-code detection function. Its sends a message to a pcixcc card
  * to find out the microcode level.
  * @ap_dev: pointer to the AP device.
@@ -1083,9 +323,11 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
 		return rc;
 	}
 	if (rc)
-		zdev->ops = &zcrypt_pcixcc_with_rng_ops;
+		zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+						   MSGTYPE06_VARIANT_DEFAULT);
 	else
-		zdev->ops = &zcrypt_pcixcc_ops;
+		zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+						   MSGTYPE06_VARIANT_NORNG);
 	ap_dev->reply = &zdev->reply;
 	ap_dev->private = zdev;
 	rc = zcrypt_device_register(zdev);
@@ -1095,6 +337,7 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
 
  out_free:
 	ap_dev->private = NULL;
+	zcrypt_msgtype_release(zdev->ops);
 	zcrypt_device_free(zdev);
 	return rc;
 }
@@ -1106,8 +349,10 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
 static void zcrypt_pcixcc_remove(struct ap_device *ap_dev)
 {
 	struct zcrypt_device *zdev = ap_dev->private;
+	struct zcrypt_ops *zops = zdev->ops;
 
 	zcrypt_device_unregister(zdev);
+	zcrypt_msgtype_release(zops);
 }
 
 int __init zcrypt_pcixcc_init(void)
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.h b/drivers/s390/crypto/zcrypt_pcixcc.h
index c7cdf599e46..eacafc8962f 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.h
+++ b/drivers/s390/crypto/zcrypt_pcixcc.h
@@ -1,12 +1,13 @@
 /*
  *  zcrypt 2.1.0
  *
- *  Copyright IBM Corp. 2001, 2006
+ *  Copyright IBM Corp. 2001, 2012
  *  Author(s): Robert Burroughs
  *	       Eric Rossman (edrossma@us.ibm.com)
  *
  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *  MSGTYPE restruct:		  Holger Dengler <hd@linux.vnet.ibm.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index d4ade9e92fb..fb92524d24e 100644
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -1523,7 +1523,7 @@ static void ctcmpc_chx_firstio(fsm_instance *fi, int event, void *arg)
 				goto done;
 	default:
 		break;
-	};
+	}
 
 	fsm_newstate(fi, (CHANNEL_DIRECTION(ch->flags) == CTCM_READ)
 		     ? CTC_STATE_RXINIT : CTC_STATE_TXINIT);
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 5227e5734a9..98ea9cc6f1a 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1454,7 +1454,7 @@ static int add_channel(struct ccw_device *cdev, enum ctcm_channel_types type,
 				ch_fsm_len, GFP_KERNEL);
 	}
 	if (ch->fsm == NULL)
-				goto free_return;
+				goto nomem_return;
 
 	fsm_newstate(ch->fsm, CTC_STATE_IDLE);
 
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index a3adf4b1c60..2ca0f1dd7a0 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -282,7 +282,7 @@ lcs_setup_write_ccws(struct lcs_card *card)
 
 	LCS_DBF_TEXT(3, setup, "iwritccw");
 	/* Setup write ccws. */
-	memset(card->write.ccws, 0, sizeof(struct ccw1) * LCS_NUM_BUFFS + 1);
+	memset(card->write.ccws, 0, sizeof(struct ccw1) * (LCS_NUM_BUFFS + 1));
 	for (cnt = 0; cnt < LCS_NUM_BUFFS; cnt++) {
 		card->write.ccws[cnt].cmd_code = LCS_CCW_WRITE;
 		card->write.ccws[cnt].count = 0;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 7a8b09612c4..3e25d315045 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -489,7 +489,7 @@ static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 		atomic_set(&reply->refcnt, 1);
 		atomic_set(&reply->received, 0);
 		reply->card = card;
-	};
+	}
 	return reply;
 }
 
@@ -1257,7 +1257,30 @@ static void qeth_clean_channel(struct qeth_channel *channel)
 		kfree(channel->iob[cnt].data);
 }
 
-static void qeth_get_channel_path_desc(struct qeth_card *card)
+static void qeth_set_single_write_queues(struct qeth_card *card)
+{
+	if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
+	    (card->qdio.no_out_queues == 4))
+		qeth_free_qdio_buffers(card);
+
+	card->qdio.no_out_queues = 1;
+	if (card->qdio.default_out_queue != 0)
+		dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
+
+	card->qdio.default_out_queue = 0;
+}
+
+static void qeth_set_multiple_write_queues(struct qeth_card *card)
+{
+	if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
+	    (card->qdio.no_out_queues == 1)) {
+		qeth_free_qdio_buffers(card);
+		card->qdio.default_out_queue = 2;
+	}
+	card->qdio.no_out_queues = 4;
+}
+
+static void qeth_update_from_chp_desc(struct qeth_card *card)
 {
 	struct ccw_device *ccwdev;
 	struct channelPath_dsc {
@@ -1274,38 +1297,23 @@ static void qeth_get_channel_path_desc(struct qeth_card *card)
 	QETH_DBF_TEXT(SETUP, 2, "chp_desc");
 
 	ccwdev = card->data.ccwdev;
-	chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
-	if (chp_dsc != NULL) {
-		if (card->info.type != QETH_CARD_TYPE_IQD) {
-			/* CHPP field bit 6 == 1 -> single queue */
-			if ((chp_dsc->chpp & 0x02) == 0x02) {
-				if ((atomic_read(&card->qdio.state) !=
-					QETH_QDIO_UNINITIALIZED) &&
-				    (card->qdio.no_out_queues == 4))
-					/* change from 4 to 1 outbound queues */
-					qeth_free_qdio_buffers(card);
-				card->qdio.no_out_queues = 1;
-				if (card->qdio.default_out_queue != 0)
-					dev_info(&card->gdev->dev,
-					"Priority Queueing not supported\n");
-				card->qdio.default_out_queue = 0;
-			} else {
-				if ((atomic_read(&card->qdio.state) !=
-					QETH_QDIO_UNINITIALIZED) &&
-				    (card->qdio.no_out_queues == 1)) {
-					/* change from 1 to 4 outbound queues */
-					qeth_free_qdio_buffers(card);
-					card->qdio.default_out_queue = 2;
-				}
-				card->qdio.no_out_queues = 4;
-			}
-		}
-		card->info.func_level = 0x4100 + chp_dsc->desc;
-		kfree(chp_dsc);
-	}
+	chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
+	if (!chp_dsc)
+		goto out;
+
+	card->info.func_level = 0x4100 + chp_dsc->desc;
+	if (card->info.type == QETH_CARD_TYPE_IQD)
+		goto out;
+
+	/* CHPP field bit 6 == 1 -> single queue */
+	if ((chp_dsc->chpp & 0x02) == 0x02)
+		qeth_set_single_write_queues(card);
+	else
+		qeth_set_multiple_write_queues(card);
+out:
+	kfree(chp_dsc);
 	QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
 	QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
-	return;
 }
 
 static void qeth_init_qdio_info(struct qeth_card *card)
@@ -1473,7 +1481,7 @@ static int qeth_determine_card_type(struct qeth_card *card)
 			card->qdio.no_in_queues = 1;
 			card->info.is_multicast_different =
 				known_devices[i][QETH_MULTICAST_IND];
-			qeth_get_channel_path_desc(card);
+			qeth_update_from_chp_desc(card);
 			return 0;
 		}
 		i++;
@@ -2029,7 +2037,7 @@ int qeth_send_control_data(struct qeth_card *card, int len,
 			if (time_after(jiffies, timeout))
 				goto time_err;
 			cpu_relax();
-		};
+		}
 	}
 
 	if (reply->rc == -EIO)
@@ -2993,7 +3001,7 @@ static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
 	struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
 	struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
 	struct ccw_dev_id ccwid;
-	int level, rc;
+	int level;
 
 	tid->chpid = card->info.chpid;
 	ccw_device_get_id(CARD_RDEV(card), &ccwid);
@@ -3001,17 +3009,10 @@ static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
 	tid->devno = ccwid.devno;
 	if (!info)
 		return;
-
-	rc = stsi(NULL, 0, 0, 0);
-	if (rc == -ENOSYS)
-		level = rc;
-	else
-		level = (((unsigned int) rc) >> 28);
-
-	if ((level >= 2) && (stsi(info222, 2, 2, 2) != -ENOSYS))
+	level = stsi(NULL, 0, 0, 0);
+	if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
 		tid->lparnr = info222->lpar_number;
-
-	if ((level >= 3) && (stsi(info322, 3, 2, 2) != -ENOSYS)) {
+	if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
 		EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
 		memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
 	}
@@ -4742,7 +4743,7 @@ int qeth_core_hardsetup_card(struct qeth_card *card)
 
 	QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
 	atomic_set(&card->force_alloc_skb, 0);
-	qeth_get_channel_path_desc(card);
+	qeth_update_from_chp_desc(card);
 retry:
 	if (retries)
 		QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index c5f03fa70fb..4cd310cb5bd 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -794,6 +794,7 @@ int qeth_l3_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
 		rc = -EEXIST;
 	spin_unlock_irqrestore(&card->ip_lock, flags);
 	if (rc) {
+		kfree(ipaddr);
 		return rc;
 	}
 	if (!qeth_l3_add_ip(card, ipaddr))
@@ -858,6 +859,7 @@ int qeth_l3_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
 		rc = -EEXIST;
 	spin_unlock_irqrestore(&card->ip_lock, flags);
 	if (rc) {
+		kfree(ipaddr);
 		return rc;
 	}
 	if (!qeth_l3_add_ip(card, ipaddr))
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index aff8621de80..f6adde44f22 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -519,6 +519,7 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
 
 	rwlock_init(&port->unit_list_lock);
 	INIT_LIST_HEAD(&port->unit_list);
+	atomic_set(&port->units, 0);
 
 	INIT_WORK(&port->gid_pn_work, zfcp_fc_port_did_lookup);
 	INIT_WORK(&port->test_link_work, zfcp_fc_link_test_work);
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index e37f0455194..f2dd3a0a39e 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -39,19 +39,25 @@ void zfcp_ccw_adapter_put(struct zfcp_adapter *adapter)
 	spin_unlock_irqrestore(&zfcp_ccw_adapter_ref_lock, flags);
 }
 
-static int zfcp_ccw_activate(struct ccw_device *cdev)
-
+/**
+ * zfcp_ccw_activate - activate adapter and wait for it to finish
+ * @cdev: pointer to belonging ccw device
+ * @clear: Status flags to clear.
+ * @tag: s390dbf trace record tag
+ */
+static int zfcp_ccw_activate(struct ccw_device *cdev, int clear, char *tag)
 {
 	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
 
 	if (!adapter)
 		return 0;
 
+	zfcp_erp_clear_adapter_status(adapter, clear);
 	zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
 	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
-				"ccresu2");
+				tag);
 	zfcp_erp_wait(adapter);
-	flush_work(&adapter->scan_work);
+	flush_work(&adapter->scan_work); /* ok to call even if nothing queued */
 
 	zfcp_ccw_adapter_put(adapter);
 
@@ -164,26 +170,34 @@ static int zfcp_ccw_set_online(struct ccw_device *cdev)
 	BUG_ON(!zfcp_reqlist_isempty(adapter->req_list));
 	adapter->req_no = 0;
 
-	zfcp_ccw_activate(cdev);
+	zfcp_ccw_activate(cdev, 0, "ccsonl1");
+	/* scan for remote ports
+	   either at the end of any successful adapter recovery
+	   or only after the adapter recovery for setting a device online */
+	zfcp_fc_inverse_conditional_port_scan(adapter);
+	flush_work(&adapter->scan_work); /* ok to call even if nothing queued */
 	zfcp_ccw_adapter_put(adapter);
 	return 0;
 }
 
 /**
- * zfcp_ccw_set_offline - set_offline function of zfcp driver
+ * zfcp_ccw_offline_sync - shut down adapter and wait for it to finish
  * @cdev: pointer to belonging ccw device
+ * @set: Status flags to set.
+ * @tag: s390dbf trace record tag
  *
  * This function gets called by the common i/o layer and sets an adapter
  * into state offline.
  */
-static int zfcp_ccw_set_offline(struct ccw_device *cdev)
+static int zfcp_ccw_offline_sync(struct ccw_device *cdev, int set, char *tag)
 {
 	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
 
 	if (!adapter)
 		return 0;
 
-	zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1");
+	zfcp_erp_set_adapter_status(adapter, set);
+	zfcp_erp_adapter_shutdown(adapter, 0, tag);
 	zfcp_erp_wait(adapter);
 
 	zfcp_ccw_adapter_put(adapter);
@@ -191,6 +205,18 @@ static int zfcp_ccw_set_offline(struct ccw_device *cdev)
 }
 
 /**
+ * zfcp_ccw_set_offline - set_offline function of zfcp driver
+ * @cdev: pointer to belonging ccw device
+ *
+ * This function gets called by the common i/o layer and sets an adapter
+ * into state offline.
+ */
+static int zfcp_ccw_set_offline(struct ccw_device *cdev)
+{
+	return zfcp_ccw_offline_sync(cdev, 0, "ccsoff1");
+}
+
+/**
  * zfcp_ccw_notify - ccw notify function
  * @cdev: pointer to belonging ccw device
  * @event: indicates if adapter was detached or attached
@@ -207,6 +233,11 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
 
 	switch (event) {
 	case CIO_GONE:
+		if (atomic_read(&adapter->status) &
+		    ZFCP_STATUS_ADAPTER_SUSPENDED) { /* notification ignore */
+			zfcp_dbf_hba_basic("ccnigo1", adapter);
+			break;
+		}
 		dev_warn(&cdev->dev, "The FCP device has been detached\n");
 		zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1");
 		break;
@@ -216,6 +247,11 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
 		zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2");
 		break;
 	case CIO_OPER:
+		if (atomic_read(&adapter->status) &
+		    ZFCP_STATUS_ADAPTER_SUSPENDED) { /* notification ignore */
+			zfcp_dbf_hba_basic("ccniop1", adapter);
+			break;
+		}
 		dev_info(&cdev->dev, "The FCP device is operational again\n");
 		zfcp_erp_set_adapter_status(adapter,
 					    ZFCP_STATUS_COMMON_RUNNING);
@@ -251,6 +287,28 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
 	zfcp_ccw_adapter_put(adapter);
 }
 
+static int zfcp_ccw_suspend(struct ccw_device *cdev)
+{
+	zfcp_ccw_offline_sync(cdev, ZFCP_STATUS_ADAPTER_SUSPENDED, "ccsusp1");
+	return 0;
+}
+
+static int zfcp_ccw_thaw(struct ccw_device *cdev)
+{
+	/* trace records for thaw and final shutdown during suspend
+	   can only be found in system dump until the end of suspend
+	   but not after resume because it's based on the memory image
+	   right after the very first suspend (freeze) callback */
+	zfcp_ccw_activate(cdev, 0, "ccthaw1");
+	return 0;
+}
+
+static int zfcp_ccw_resume(struct ccw_device *cdev)
+{
+	zfcp_ccw_activate(cdev, ZFCP_STATUS_ADAPTER_SUSPENDED, "ccresu1");
+	return 0;
+}
+
 struct ccw_driver zfcp_ccw_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
@@ -263,7 +321,7 @@ struct ccw_driver zfcp_ccw_driver = {
 	.set_offline = zfcp_ccw_set_offline,
 	.notify      = zfcp_ccw_notify,
 	.shutdown    = zfcp_ccw_shutdown,
-	.freeze      = zfcp_ccw_set_offline,
-	.thaw	     = zfcp_ccw_activate,
-	.restore     = zfcp_ccw_activate,
+	.freeze      = zfcp_ccw_suspend,
+	.thaw	     = zfcp_ccw_thaw,
+	.restore     = zfcp_ccw_resume,
 };
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index fbd8b4db602..49b82e46629 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -293,7 +293,7 @@ void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *adapter)
 	}
 	read_unlock_irqrestore(&adapter->port_list_lock, flags);
 
-	shost_for_each_device(sdev, port->adapter->scsi_host) {
+	shost_for_each_device(sdev, adapter->scsi_host) {
 		zfcp_sdev = sdev_to_zfcp(sdev);
 		status = atomic_read(&zfcp_sdev->status);
 		if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 3c1d22097ad..e1a8cc2526e 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -191,7 +191,7 @@ void zfcp_dbf_hba_def_err(struct zfcp_adapter *adapter, u64 req_id, u16 scount,
 	length = min((u16)sizeof(struct qdio_buffer),
 		     (u16)ZFCP_DBF_PAY_MAX_REC);
 
-	while ((char *)pl[payload->counter] && payload->counter < scount) {
+	while (payload->counter < scount && (char *)pl[payload->counter]) {
 		memcpy(payload->data, (char *)pl[payload->counter], length);
 		debug_event(dbf->pay, 1, payload, zfcp_dbf_plen(length));
 		payload->counter++;
@@ -200,6 +200,26 @@ void zfcp_dbf_hba_def_err(struct zfcp_adapter *adapter, u64 req_id, u16 scount,
 	spin_unlock_irqrestore(&dbf->pay_lock, flags);
 }
 
+/**
+ * zfcp_dbf_hba_basic - trace event for basic adapter events
+ * @adapter: pointer to struct zfcp_adapter
+ */
+void zfcp_dbf_hba_basic(char *tag, struct zfcp_adapter *adapter)
+{
+	struct zfcp_dbf *dbf = adapter->dbf;
+	struct zfcp_dbf_hba *rec = &dbf->hba_buf;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dbf->hba_lock, flags);
+	memset(rec, 0, sizeof(*rec));
+
+	memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+	rec->id = ZFCP_DBF_HBA_BASIC;
+
+	debug_event(dbf->hba, 1, rec, sizeof(*rec));
+	spin_unlock_irqrestore(&dbf->hba_lock, flags);
+}
+
 static void zfcp_dbf_set_common(struct zfcp_dbf_rec *rec,
 				struct zfcp_adapter *adapter,
 				struct zfcp_port *port,
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 714f087eb7a..3ac7a4b30dd 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -154,6 +154,7 @@ enum zfcp_dbf_hba_id {
 	ZFCP_DBF_HBA_RES	= 1,
 	ZFCP_DBF_HBA_USS	= 2,
 	ZFCP_DBF_HBA_BIT	= 3,
+	ZFCP_DBF_HBA_BASIC	= 4,
 };
 
 /**
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 2955e1a3dea..1305955cbf5 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -77,6 +77,7 @@ struct zfcp_reqlist;
 #define ZFCP_STATUS_ADAPTER_SIOSL_ISSUED	0x00000004
 #define ZFCP_STATUS_ADAPTER_XCONFIG_OK		0x00000008
 #define ZFCP_STATUS_ADAPTER_HOST_CON_INIT	0x00000010
+#define ZFCP_STATUS_ADAPTER_SUSPENDED		0x00000040
 #define ZFCP_STATUS_ADAPTER_ERP_PENDING		0x00000100
 #define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED	0x00000200
 #define ZFCP_STATUS_ADAPTER_DATA_DIV_ENABLED	0x00000400
@@ -204,6 +205,7 @@ struct zfcp_port {
 	struct zfcp_adapter    *adapter;       /* adapter used to access port */
 	struct list_head	unit_list;	/* head of logical unit list */
 	rwlock_t		unit_list_lock; /* unit list lock */
+	atomic_t		units;	       /* zfcp_unit count */
 	atomic_t	       status;	       /* status of this remote port */
 	u64		       wwnn;	       /* WWNN if known */
 	u64		       wwpn;	       /* WWPN */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 92d3df6ac8b..4133ab6e20f 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -1230,7 +1230,7 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
 	case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
 		if (result == ZFCP_ERP_SUCCEEDED) {
 			register_service_level(&adapter->service_level);
-			queue_work(adapter->work_queue, &adapter->scan_work);
+			zfcp_fc_conditional_port_scan(adapter);
 			queue_work(adapter->work_queue, &adapter->ns_up_work);
 		} else
 			unregister_service_level(&adapter->service_level);
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index 36f422770ff..1d3dd3f7d69 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -54,6 +54,7 @@ extern void zfcp_dbf_hba_fsf_res(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
+extern void zfcp_dbf_hba_basic(char *, struct zfcp_adapter *);
 extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
@@ -98,6 +99,8 @@ extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
 extern int zfcp_fc_exec_bsg_job(struct fc_bsg_job *);
 extern int zfcp_fc_timeout_bsg_job(struct fc_bsg_job *);
 extern void zfcp_fc_sym_name_update(struct work_struct *);
+extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *);
+extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *);
 
 /* zfcp_fsf.c */
 extern struct kmem_cache *zfcp_fsf_qtcb_cache;
@@ -158,6 +161,7 @@ extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int);
 extern struct attribute_group zfcp_sysfs_unit_attrs;
 extern struct attribute_group zfcp_sysfs_adapter_attrs;
 extern struct attribute_group zfcp_sysfs_port_attrs;
+extern struct mutex zfcp_sysfs_port_units_mutex;
 extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
 extern struct device_attribute *zfcp_sysfs_shost_attrs[];
 
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 88688a80b2c..ff598cd68b2 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -26,6 +26,27 @@ static u32 zfcp_fc_rscn_range_mask[] = {
 	[ELS_ADDR_FMT_FAB]		= 0x000000,
 };
 
+static bool no_auto_port_rescan;
+module_param_named(no_auto_port_rescan, no_auto_port_rescan, bool, 0600);
+MODULE_PARM_DESC(no_auto_port_rescan,
+		 "no automatic port_rescan (default off)");
+
+void zfcp_fc_conditional_port_scan(struct zfcp_adapter *adapter)
+{
+	if (no_auto_port_rescan)
+		return;
+
+	queue_work(adapter->work_queue, &adapter->scan_work);
+}
+
+void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *adapter)
+{
+	if (!no_auto_port_rescan)
+		return;
+
+	queue_work(adapter->work_queue, &adapter->scan_work);
+}
+
 /**
  * zfcp_fc_post_event - post event to userspace via fc_transport
  * @work: work struct with enqueued events
@@ -206,7 +227,7 @@ static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req)
 		zfcp_fc_enqueue_event(fsf_req->adapter, FCH_EVT_RSCN,
 				      *(u32 *)page);
 	}
-	queue_work(fsf_req->adapter->work_queue, &fsf_req->adapter->scan_work);
+	zfcp_fc_conditional_port_scan(fsf_req->adapter);
 }
 
 static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index e1c1efc2c5a..c96320d79fb 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -219,7 +219,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
 		return;
 	}
 
-	zfcp_dbf_hba_fsf_uss("fssrh_2", req);
+	zfcp_dbf_hba_fsf_uss("fssrh_4", req);
 
 	switch (sr_buf->status_type) {
 	case FSF_STATUS_READ_PORT_CLOSED:
@@ -257,7 +257,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
 		if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED)
 			zfcp_cfdc_adapter_access_changed(adapter);
 		if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
-			queue_work(adapter->work_queue, &adapter->scan_work);
+			zfcp_fc_conditional_port_scan(adapter);
 		break;
 	case FSF_STATUS_READ_CFDC_UPDATED:
 		zfcp_cfdc_adapter_access_changed(adapter);
@@ -437,6 +437,34 @@ void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
 	}
 }
 
+#define ZFCP_FSF_PORTSPEED_1GBIT	(1 <<  0)
+#define ZFCP_FSF_PORTSPEED_2GBIT	(1 <<  1)
+#define ZFCP_FSF_PORTSPEED_4GBIT	(1 <<  2)
+#define ZFCP_FSF_PORTSPEED_10GBIT	(1 <<  3)
+#define ZFCP_FSF_PORTSPEED_8GBIT	(1 <<  4)
+#define ZFCP_FSF_PORTSPEED_16GBIT	(1 <<  5)
+#define ZFCP_FSF_PORTSPEED_NOT_NEGOTIATED (1 << 15)
+
+static u32 zfcp_fsf_convert_portspeed(u32 fsf_speed)
+{
+	u32 fdmi_speed = 0;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_1GBIT)
+		fdmi_speed |= FC_PORTSPEED_1GBIT;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_2GBIT)
+		fdmi_speed |= FC_PORTSPEED_2GBIT;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_4GBIT)
+		fdmi_speed |= FC_PORTSPEED_4GBIT;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_10GBIT)
+		fdmi_speed |= FC_PORTSPEED_10GBIT;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_8GBIT)
+		fdmi_speed |= FC_PORTSPEED_8GBIT;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_16GBIT)
+		fdmi_speed |= FC_PORTSPEED_16GBIT;
+	if (fsf_speed & ZFCP_FSF_PORTSPEED_NOT_NEGOTIATED)
+		fdmi_speed |= FC_PORTSPEED_NOT_NEGOTIATED;
+	return fdmi_speed;
+}
+
 static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
 {
 	struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config;
@@ -456,7 +484,8 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
 	fc_host_port_name(shost) = nsp->fl_wwpn;
 	fc_host_node_name(shost) = nsp->fl_wwnn;
 	fc_host_port_id(shost) = ntoh24(bottom->s_id);
-	fc_host_speed(shost) = bottom->fc_link_speed;
+	fc_host_speed(shost) =
+		zfcp_fsf_convert_portspeed(bottom->fc_link_speed);
 	fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
 
 	adapter->hydra_version = bottom->adapter_type;
@@ -580,7 +609,8 @@ static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req)
 	} else
 		fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
 	fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
-	fc_host_supported_speeds(shost) = bottom->supported_speed;
+	fc_host_supported_speeds(shost) =
+		zfcp_fsf_convert_portspeed(bottom->supported_speed);
 	memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types,
 	       FC_FC4_LIST_SIZE);
 	memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types,
@@ -771,12 +801,14 @@ out:
 static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
 {
 	struct scsi_device *sdev = req->data;
-	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct zfcp_scsi_dev *zfcp_sdev;
 	union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual;
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
 		return;
 
+	zfcp_sdev = sdev_to_zfcp(sdev);
+
 	switch (req->qtcb->header.fsf_status) {
 	case FSF_PORT_HANDLE_NOT_VALID:
 		if (fsq->word[0] == fsq->word[1]) {
@@ -885,7 +917,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
 
 	switch (header->fsf_status) {
         case FSF_GOOD:
-		zfcp_dbf_san_res("fsscth1", req);
+		zfcp_dbf_san_res("fsscth2", req);
 		ct->status = 0;
 		break;
         case FSF_SERVICE_CLASS_NOT_SUPPORTED:
@@ -1739,13 +1771,15 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
 {
 	struct zfcp_adapter *adapter = req->adapter;
 	struct scsi_device *sdev = req->data;
-	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct zfcp_scsi_dev *zfcp_sdev;
 	struct fsf_qtcb_header *header = &req->qtcb->header;
 	struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support;
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
 		return;
 
+	zfcp_sdev = sdev_to_zfcp(sdev);
+
 	atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
 			  ZFCP_STATUS_COMMON_ACCESS_BOXED |
 			  ZFCP_STATUS_LUN_SHARED |
@@ -1856,11 +1890,13 @@ out:
 static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req)
 {
 	struct scsi_device *sdev = req->data;
-	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct zfcp_scsi_dev *zfcp_sdev;
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
 		return;
 
+	zfcp_sdev = sdev_to_zfcp(sdev);
+
 	switch (req->qtcb->header.fsf_status) {
 	case FSF_PORT_HANDLE_NOT_VALID:
 		zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1");
@@ -1950,7 +1986,7 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
 {
 	struct fsf_qual_latency_info *lat_in;
 	struct latency_cont *lat = NULL;
-	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device);
+	struct zfcp_scsi_dev *zfcp_sdev;
 	struct zfcp_blk_drv_data blktrc;
 	int ticks = req->adapter->timer_ticks;
 
@@ -1965,6 +2001,7 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
 
 	if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA &&
 	    !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
+		zfcp_sdev = sdev_to_zfcp(scsi->device);
 		blktrc.flags |= ZFCP_BLK_LAT_VALID;
 		blktrc.channel_lat = lat_in->channel_lat * ticks;
 		blktrc.fabric_lat = lat_in->fabric_lat * ticks;
@@ -2002,12 +2039,14 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
 {
 	struct scsi_cmnd *scmnd = req->data;
 	struct scsi_device *sdev = scmnd->device;
-	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct zfcp_scsi_dev *zfcp_sdev;
 	struct fsf_qtcb_header *header = &req->qtcb->header;
 
 	if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR))
 		return;
 
+	zfcp_sdev = sdev_to_zfcp(sdev);
+
 	switch (header->fsf_status) {
 	case FSF_HANDLE_MISMATCH:
 	case FSF_PORT_HANDLE_NOT_VALID:
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index b9fffc8d94a..50b5615848f 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -102,18 +102,22 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
 {
 	struct zfcp_qdio *qdio = (struct zfcp_qdio *) parm;
 	struct zfcp_adapter *adapter = qdio->adapter;
-	struct qdio_buffer_element *sbale;
 	int sbal_no, sbal_idx;
-	void *pl[ZFCP_QDIO_MAX_SBALS_PER_REQ + 1];
-	u64 req_id;
-	u8 scount;
 
 	if (unlikely(qdio_err)) {
-		memset(pl, 0, ZFCP_QDIO_MAX_SBALS_PER_REQ * sizeof(void *));
 		if (zfcp_adapter_multi_buffer_active(adapter)) {
+			void *pl[ZFCP_QDIO_MAX_SBALS_PER_REQ + 1];
+			struct qdio_buffer_element *sbale;
+			u64 req_id;
+			u8 scount;
+
+			memset(pl, 0,
+			       ZFCP_QDIO_MAX_SBALS_PER_REQ * sizeof(void *));
 			sbale = qdio->res_q[idx]->element;
 			req_id = (u64) sbale->addr;
-			scount = sbale->scount + 1; /* incl. signaling SBAL */
+			scount = min(sbale->scount + 1,
+				     ZFCP_QDIO_MAX_SBALS_PER_REQ + 1);
+				     /* incl. signaling SBAL */
 
 			for (sbal_no = 0; sbal_no < scount; sbal_no++) {
 				sbal_idx = (idx + sbal_no) %
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index c66af27b230..1e0eb089dfb 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -227,6 +227,8 @@ static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
 static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
 		     zfcp_sysfs_port_rescan_store);
 
+DEFINE_MUTEX(zfcp_sysfs_port_units_mutex);
+
 static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
 					    struct device_attribute *attr,
 					    const char *buf, size_t count)
@@ -249,6 +251,16 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
 	else
 		retval = 0;
 
+	mutex_lock(&zfcp_sysfs_port_units_mutex);
+	if (atomic_read(&port->units) > 0) {
+		retval = -EBUSY;
+		mutex_unlock(&zfcp_sysfs_port_units_mutex);
+		goto out;
+	}
+	/* port is about to be removed, so no more unit_add */
+	atomic_set(&port->units, -1);
+	mutex_unlock(&zfcp_sysfs_port_units_mutex);
+
 	write_lock_irq(&adapter->port_list_lock);
 	list_del(&port->list);
 	write_unlock_irq(&adapter->port_list_lock);
@@ -289,12 +301,14 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
 {
 	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
 	u64 fcp_lun;
+	int retval;
 
 	if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
 		return -EINVAL;
 
-	if (zfcp_unit_add(port, fcp_lun))
-		return -EINVAL;
+	retval = zfcp_unit_add(port, fcp_lun);
+	if (retval)
+		return retval;
 
 	return count;
 }
diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c
index 3f2bff0d3aa..1cd2b99ab25 100644
--- a/drivers/s390/scsi/zfcp_unit.c
+++ b/drivers/s390/scsi/zfcp_unit.c
@@ -104,7 +104,7 @@ static void zfcp_unit_release(struct device *dev)
 {
 	struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
 
-	put_device(&unit->port->dev);
+	atomic_dec(&unit->port->units);
 	kfree(unit);
 }
 
@@ -119,16 +119,27 @@ static void zfcp_unit_release(struct device *dev)
 int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun)
 {
 	struct zfcp_unit *unit;
+	int retval = 0;
+
+	mutex_lock(&zfcp_sysfs_port_units_mutex);
+	if (atomic_read(&port->units) == -1) {
+		/* port is already gone */
+		retval = -ENODEV;
+		goto out;
+	}
 
 	unit = zfcp_unit_find(port, fcp_lun);
 	if (unit) {
 		put_device(&unit->dev);
-		return -EEXIST;
+		retval = -EEXIST;
+		goto out;
 	}
 
 	unit = kzalloc(sizeof(struct zfcp_unit), GFP_KERNEL);
-	if (!unit)
-		return -ENOMEM;
+	if (!unit) {
+		retval = -ENOMEM;
+		goto out;
+	}
 
 	unit->port = port;
 	unit->fcp_lun = fcp_lun;
@@ -139,28 +150,33 @@ int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun)
 	if (dev_set_name(&unit->dev, "0x%016llx",
 			 (unsigned long long) fcp_lun)) {
 		kfree(unit);
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto out;
 	}
 
-	get_device(&port->dev);
-
 	if (device_register(&unit->dev)) {
 		put_device(&unit->dev);
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto out;
 	}
 
 	if (sysfs_create_group(&unit->dev.kobj, &zfcp_sysfs_unit_attrs)) {
 		device_unregister(&unit->dev);
-		return -EINVAL;
+		retval = -EINVAL;
+		goto out;
 	}
 
+	atomic_inc(&port->units); /* under zfcp_sysfs_port_units_mutex ! */
+
 	write_lock_irq(&port->unit_list_lock);
 	list_add_tail(&unit->list, &port->unit_list);
 	write_unlock_irq(&port->unit_list_lock);
 
 	zfcp_unit_scsi_scan(unit);
 
-	return 0;
+out:
+	mutex_unlock(&zfcp_sysfs_port_units_mutex);
+	return retval;
 }
 
 /**
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 4b9939726c3..b160073e54b 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -150,7 +150,7 @@ static long d7s_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			regs |= D7S_FLIP;
 		writeb(regs, p->regs);
 		break;
-	};
+	}
 	mutex_unlock(&d7s_mutex);
 
 	return error;
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index 339fd6f65ed..0bc18569f9c 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -353,7 +353,7 @@ static int envctrl_i2c_data_translate(unsigned char data, int translate_type,
 
 	default:
 		break;
-	};
+	}
 
 	return len;
 }
@@ -644,7 +644,7 @@ envctrl_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	default:
 		break;
 
-	};
+	}
 
 	return ret;
 }
@@ -687,7 +687,7 @@ envctrl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 	default:
 		return -EINVAL;
-	};
+	}
 
 	return 0;
 }
@@ -947,7 +947,7 @@ static void envctrl_init_i2c_child(struct device_node *dp,
 
 		default:
 			break;
-		};
+		}
 	}
 }
 
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index 2236aea3ca2..5843288f64b 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -222,7 +222,7 @@ static int opromnext(void __user *argp, unsigned int cmd, struct device_node *dp
 		case OPROMSETCUR:
 		default:
 			break;
-		};
+		}
 	} else {
 		/* Sibling of node zero is the root node.  */
 		if (cmd != OPROMNEXT)
@@ -588,7 +588,7 @@ static int openprom_bsd_ioctl(struct file * file,
 	default:
 		err = -EINVAL;
 		break;
-	};
+	}
 	mutex_unlock(&openprom_mutex);
 
 	return err;
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 25417d0e7ac..0bcacf71aef 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -2888,7 +2888,7 @@ ahd_handle_lqiphase_error(struct ahd_softc *ahd, u_int lqistat1)
 		ahd_outb(ahd, CLRINT, CLRSCSIINT);
 		ahd_unpause(ahd);
 	} else {
-		printk("Reseting Channel for LQI Phase error\n");
+		printk("Resetting Channel for LQI Phase error\n");
 		ahd_dump_card_state(ahd);
 		ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
 	}
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index def24a1079a..33c52bc2c7b 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -999,7 +999,7 @@ static void arcmsr_remove(struct pci_dev *pdev)
 	int poll_count = 0;
 	arcmsr_free_sysfs_attr(acb);
 	scsi_remove_host(host);
-	flush_work_sync(&acb->arcmsr_do_message_isr_bh);
+	flush_work(&acb->arcmsr_do_message_isr_bh);
 	del_timer_sync(&acb->eternal_timer);
 	arcmsr_disable_outbound_ints(acb);
 	arcmsr_stop_adapter_bgrb(acb);
@@ -1045,7 +1045,7 @@ static void arcmsr_shutdown(struct pci_dev *pdev)
 		(struct AdapterControlBlock *)host->hostdata;
 	del_timer_sync(&acb->eternal_timer);
 	arcmsr_disable_outbound_ints(acb);
-	flush_work_sync(&acb->arcmsr_do_message_isr_bh);
+	flush_work(&acb->arcmsr_do_message_isr_bh);
 	arcmsr_stop_adapter_bgrb(acb);
 	arcmsr_flush_adapter_cache(acb);
 }
diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c
index edfd12b48c2..968d08358d2 100644
--- a/drivers/scsi/arm/eesox.c
+++ b/drivers/scsi/arm/eesox.c
@@ -273,7 +273,7 @@ static void eesoxscsi_buffer_out(void *buf, int length, void __iomem *base)
 {
 	const void __iomem *reg_fas = base + EESOX_FAS216_OFFSET;
 	const void __iomem *reg_dmastat = base + EESOX_DMASTAT;
-	const void __iomem *reg_dmadata = base + EESOX_DMADATA;
+	void __iomem *reg_dmadata = base + EESOX_DMADATA;
 
 	do {
 		unsigned int status;
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index d2e9e933f7a..07d2cb126d9 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -48,7 +48,8 @@ int beiscsi_pci_soft_reset(struct beiscsi_hba *phba)
 	}
 
 	if (sreset & BE2_SET_RESET) {
-		printk(KERN_ERR "Soft Reset  did not deassert\n");
+		printk(KERN_ERR DRV_NAME
+		       " Soft Reset  did not deassert\n");
 		return -EIO;
 	}
 	pconline1 = BE2_MPU_IRAM_ONLINE;
@@ -67,7 +68,8 @@ int beiscsi_pci_soft_reset(struct beiscsi_hba *phba)
 		i++;
 	}
 	if (sreset & BE2_SET_RESET) {
-		printk(KERN_ERR "MPU Online Soft Reset did not deassert\n");
+		printk(KERN_ERR DRV_NAME
+		       " MPU Online Soft Reset did not deassert\n");
 		return -EIO;
 	}
 	return 0;
@@ -93,8 +95,9 @@ int be_chk_reset_complete(struct beiscsi_hba *phba)
 	}
 
 	if ((status & 0x80000000) || (!num_loop)) {
-		printk(KERN_ERR "Failed in be_chk_reset_complete"
-		"status = 0x%x\n", status);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BC_%d : Failed in be_chk_reset_complete"
+			    "status = 0x%x\n", status);
 		return -EIO;
 	}
 
@@ -169,6 +172,7 @@ static int be_mcc_compl_process(struct be_ctrl_info *ctrl,
 				struct be_mcc_compl *compl)
 {
 	u16 compl_status, extd_status;
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 
 	be_dws_le_to_cpu(compl, 4);
 
@@ -177,9 +181,12 @@ static int be_mcc_compl_process(struct be_ctrl_info *ctrl,
 	if (compl_status != MCC_STATUS_SUCCESS) {
 		extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
 						CQE_STATUS_EXTD_MASK;
-		dev_err(&ctrl->pdev->dev,
-			"error in cmd completion: status(compl/extd)=%d/%d\n",
-			compl_status, extd_status);
+
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : error in cmd completion: status(compl/extd)=%d/%d\n",
+			    compl_status, extd_status);
+
 		return -EBUSY;
 	}
 	return 0;
@@ -233,22 +240,29 @@ void beiscsi_async_link_state_process(struct beiscsi_hba *phba,
 {
 	switch (evt->port_link_status) {
 	case ASYNC_EVENT_LINK_DOWN:
-		SE_DEBUG(DBG_LVL_1, "Link Down on Physical Port %d\n",
-				     evt->physical_port);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
+			    "BC_%d : Link Down on Physical Port %d\n",
+			    evt->physical_port);
+
 		phba->state |= BE_ADAPTER_LINK_DOWN;
 		iscsi_host_for_each_session(phba->shost,
 					    be2iscsi_fail_session);
 		break;
 	case ASYNC_EVENT_LINK_UP:
 		phba->state = BE_ADAPTER_UP;
-		SE_DEBUG(DBG_LVL_1, "Link UP on Physical Port %d\n",
-						evt->physical_port);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
+			    "BC_%d : Link UP on Physical Port %d\n",
+			    evt->physical_port);
 		break;
 	default:
-		SE_DEBUG(DBG_LVL_1, "Unexpected Async Notification %d on"
-				    "Physical Port %d\n",
-				     evt->port_link_status,
-				     evt->physical_port);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
+			    "BC_%d : Unexpected Async Notification %d on"
+			    "Physical Port %d\n",
+			    evt->port_link_status,
+			    evt->physical_port);
 	}
 }
 
@@ -279,9 +293,11 @@ int beiscsi_process_mcc(struct beiscsi_hba *phba)
 				beiscsi_async_link_state_process(phba,
 				   (struct be_async_event_link_state *) compl);
 			else
-				SE_DEBUG(DBG_LVL_1,
-					 " Unsupported Async Event, flags"
-					 " = 0x%08x\n", compl->flags);
+				beiscsi_log(phba, KERN_ERR,
+					    BEISCSI_LOG_CONFIG |
+					    BEISCSI_LOG_MBOX,
+					    "BC_%d : Unsupported Async Event, flags"
+					    " = 0x%08x\n", compl->flags);
 
 		} else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) {
 				status = be_mcc_compl_process(ctrl, compl);
@@ -312,7 +328,10 @@ static int be_mcc_wait_compl(struct beiscsi_hba *phba)
 		udelay(100);
 	}
 	if (i == mcc_timeout) {
-		dev_err(&phba->pcidev->dev, "mccq poll timed out\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : mccq poll timed out\n");
+
 		return -EBUSY;
 	}
 	return 0;
@@ -338,7 +357,11 @@ static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl)
 			break;
 
 		if (cnt > 12000000) {
-			dev_err(&ctrl->pdev->dev, "mbox_db poll timed out\n");
+			struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+				    "BC_%d : mbox_db poll timed out\n");
+
 			return -EBUSY;
 		}
 
@@ -360,6 +383,7 @@ int be_mbox_notify(struct be_ctrl_info *ctrl)
 	struct be_dma_mem *mbox_mem = &ctrl->mbox_mem;
 	struct be_mcc_mailbox *mbox = mbox_mem->va;
 	struct be_mcc_compl *compl = &mbox->compl;
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 
 	val &= ~MPU_MAILBOX_DB_RDY_MASK;
 	val |= MPU_MAILBOX_DB_HI_MASK;
@@ -368,7 +392,10 @@ int be_mbox_notify(struct be_ctrl_info *ctrl)
 
 	status = be_mbox_db_ready_wait(ctrl);
 	if (status != 0) {
-		SE_DEBUG(DBG_LVL_1, " be_mbox_db_ready_wait failed\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : be_mbox_db_ready_wait failed\n");
+
 		return status;
 	}
 	val = 0;
@@ -379,18 +406,27 @@ int be_mbox_notify(struct be_ctrl_info *ctrl)
 
 	status = be_mbox_db_ready_wait(ctrl);
 	if (status != 0) {
-		SE_DEBUG(DBG_LVL_1, " be_mbox_db_ready_wait failed\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : be_mbox_db_ready_wait failed\n");
+
 		return status;
 	}
 	if (be_mcc_compl_is_new(compl)) {
 		status = be_mcc_compl_process(ctrl, &mbox->compl);
 		be_mcc_compl_use(compl);
 		if (status) {
-			SE_DEBUG(DBG_LVL_1, "After be_mcc_compl_process\n");
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+				    "BC_%d : After be_mcc_compl_process\n");
+
 			return status;
 		}
 	} else {
-		dev_err(&ctrl->pdev->dev, "invalid mailbox completion\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : Invalid Mailbox Completion\n");
+
 		return -EBUSY;
 	}
 	return 0;
@@ -436,7 +472,10 @@ static int be_mbox_notify_wait(struct beiscsi_hba *phba)
 		if (status)
 			return status;
 	} else {
-		dev_err(&phba->pcidev->dev, "invalid mailbox completion\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : invalid mailbox completion\n");
+
 		return -EBUSY;
 	}
 	return 0;
@@ -528,7 +567,6 @@ int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
 	struct be_dma_mem *q_mem = &eq->dma_mem;
 	int status;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_cmd_eq_create\n");
 	spin_lock(&ctrl->mbox_lock);
 	memset(wrb, 0, sizeof(*wrb));
 
@@ -563,10 +601,10 @@ int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
 int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
 {
 	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 	int status;
 	u8 *endian_check;
 
-	SE_DEBUG(DBG_LVL_8, "In be_cmd_fw_initialize\n");
 	spin_lock(&ctrl->mbox_lock);
 	memset(wrb, 0, sizeof(*wrb));
 
@@ -583,7 +621,8 @@ int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
 
 	status = be_mbox_notify(ctrl);
 	if (status)
-		SE_DEBUG(DBG_LVL_1, "be_cmd_fw_initialize Failed\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BC_%d : be_cmd_fw_initialize Failed\n");
 
 	spin_unlock(&ctrl->mbox_lock);
 	return status;
@@ -596,11 +635,11 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
 	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 	struct be_cmd_req_cq_create *req = embedded_payload(wrb);
 	struct be_cmd_resp_cq_create *resp = embedded_payload(wrb);
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 	struct be_dma_mem *q_mem = &cq->dma_mem;
 	void *ctxt = &req->context;
 	int status;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_cmd_cq_create\n");
 	spin_lock(&ctrl->mbox_lock);
 	memset(wrb, 0, sizeof(*wrb));
 
@@ -608,8 +647,6 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
 
 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 			OPCODE_COMMON_CQ_CREATE, sizeof(*req));
-	if (!q_mem->va)
-		SE_DEBUG(DBG_LVL_1, "uninitialized q_mem->va\n");
 
 	req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
 
@@ -633,8 +670,10 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
 		cq->id = le16_to_cpu(resp->cq_id);
 		cq->created = true;
 	} else
-		SE_DEBUG(DBG_LVL_1, "In be_cmd_cq_create, status=ox%08x\n",
-			status);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BC_%d : In be_cmd_cq_create, status=ox%08x\n",
+			    status);
+
 	spin_unlock(&ctrl->mbox_lock);
 
 	return status;
@@ -700,10 +739,14 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
 {
 	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 	struct be_cmd_req_q_destroy *req = embedded_payload(wrb);
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 	u8 subsys = 0, opcode = 0;
 	int status;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_cmd_q_destroy\n");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BC_%d : In beiscsi_cmd_q_destroy "
+		    "queue_type : %d\n", queue_type);
+
 	spin_lock(&ctrl->mbox_lock);
 	memset(wrb, 0, sizeof(*wrb));
 	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@@ -759,7 +802,6 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 	void *ctxt = &req->context;
 	int status;
 
-	SE_DEBUG(DBG_LVL_8, "In be_cmd_create_default_pdu_queue\n");
 	spin_lock(&ctrl->mbox_lock);
 	memset(wrb, 0, sizeof(*wrb));
 
@@ -830,6 +872,7 @@ int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
 {
 	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 	struct be_post_sgl_pages_req *req = embedded_payload(wrb);
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 	int status;
 	unsigned int curr_pages;
 	u32 internal_page_offset = 0;
@@ -860,8 +903,9 @@ int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
 
 		status = be_mbox_notify(ctrl);
 		if (status) {
-			SE_DEBUG(DBG_LVL_1,
-				 "FW CMD to map iscsi frags failed.\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BC_%d : FW CMD to map iscsi frags failed.\n");
+
 			goto error;
 		}
 	} while (num_pages > 0);
@@ -890,3 +934,45 @@ int beiscsi_cmd_reset_function(struct beiscsi_hba  *phba)
 	spin_unlock(&ctrl->mbox_lock);
 	return status;
 }
+
+/**
+ * be_cmd_set_vlan()- Configure VLAN paramters on the adapter
+ * @phba: device priv structure instance
+ * @vlan_tag: TAG to be set
+ *
+ * Set the VLAN_TAG for the adapter or Disable VLAN on adapter
+ *
+ * returns
+ *	TAG for the MBX Cmd
+ * **/
+int be_cmd_set_vlan(struct beiscsi_hba *phba,
+		     uint16_t vlan_tag)
+{
+	unsigned int tag = 0;
+	struct be_mcc_wrb *wrb;
+	struct be_cmd_set_vlan_req *req;
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+
+	spin_lock(&ctrl->mbox_lock);
+	tag = alloc_mcc_tag(phba);
+	if (!tag) {
+		spin_unlock(&ctrl->mbox_lock);
+		return tag;
+	}
+
+	wrb = wrb_from_mccq(phba);
+	req = embedded_payload(wrb);
+	wrb->tag0 |= tag;
+	be_wrb_hdr_prepare(wrb, sizeof(*wrb), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			   OPCODE_COMMON_ISCSI_NTWK_SET_VLAN,
+			   sizeof(*req));
+
+	req->interface_hndl = phba->interface_handle;
+	req->vlan_priority = vlan_tag;
+
+	be_mcc_notify(phba);
+	spin_unlock(&ctrl->mbox_lock);
+
+	return tag;
+}
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index b0b36c6a145..2c8f98df128 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -348,6 +348,23 @@ struct be_cmd_get_boot_target_resp {
 	int  boot_session_handle;
 };
 
+struct be_cmd_reopen_session_req {
+	struct be_cmd_req_hdr hdr;
+#define BE_REOPEN_ALL_SESSIONS  0x00
+#define BE_REOPEN_BOOT_SESSIONS 0x01
+#define BE_REOPEN_A_SESSION     0x02
+	u16 reopen_type;
+	u16 rsvd;
+	u32 session_handle;
+} __packed;
+
+struct be_cmd_reopen_session_resp {
+	struct be_cmd_resp_hdr hdr;
+	u32 rsvd;
+	u32 session_handle;
+} __packed;
+
+
 struct be_cmd_mac_query_req {
 	struct be_cmd_req_hdr hdr;
 	u8 type;
@@ -432,6 +449,12 @@ struct be_cmd_get_def_gateway_resp {
 	struct ip_addr_format ip_addr;
 } __packed;
 
+#define BEISCSI_VLAN_DISABLE	0xFFFF
+struct be_cmd_set_vlan_req {
+	struct be_cmd_req_hdr hdr;
+	u32 interface_hndl;
+	u32 vlan_priority;
+} __packed;
 /******************** Create CQ ***************************/
 /**
  * Pseudo amap definition in which each bit of the actual structure is defined
@@ -671,6 +694,9 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
 
 bool is_link_state_evt(u32 trailer);
 
+/* Configuration Functions */
+int be_cmd_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
+
 struct be_default_pdu_context {
 	u32 dw[4];
 } __packed;
@@ -911,6 +937,7 @@ struct be_cmd_get_all_if_id_req {
 #define OPCODE_ISCSI_INI_CFG_GET_HBA_NAME	6
 #define OPCODE_ISCSI_INI_CFG_SET_HBA_NAME	7
 #define OPCODE_ISCSI_INI_SESSION_GET_A_SESSION  14
+#define OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS 36
 #define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
 #define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
 #define OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET	52
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 43f35034585..aedb0d9a9da 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -50,21 +50,27 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
 	struct beiscsi_session *beiscsi_sess;
 	struct beiscsi_io_task *io_task;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_session_create\n");
 
 	if (!ep) {
-		SE_DEBUG(DBG_LVL_1, "beiscsi_session_create: invalid ep\n");
+		printk(KERN_ERR
+		       "beiscsi_session_create: invalid ep\n");
 		return NULL;
 	}
 	beiscsi_ep = ep->dd_data;
 	phba = beiscsi_ep->phba;
 	shost = phba->shost;
+
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_session_create\n");
+
 	if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
-		shost_printk(KERN_ERR, shost, "Cannot handle %d cmds."
-			     "Max cmds per session supported is %d. Using %d. "
-			     "\n", cmds_max,
-			      beiscsi_ep->phba->params.wrbs_per_cxn,
-			      beiscsi_ep->phba->params.wrbs_per_cxn);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Cannot handle %d cmds."
+			    "Max cmds per session supported is %d. Using %d."
+			    "\n", cmds_max,
+			    beiscsi_ep->phba->params.wrbs_per_cxn,
+			    beiscsi_ep->phba->params.wrbs_per_cxn);
+
 		cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
 	}
 
@@ -102,7 +108,7 @@ void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
 	struct iscsi_session *sess = cls_session->dd_data;
 	struct beiscsi_session *beiscsi_sess = sess->dd_data;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_session_destroy\n");
+	printk(KERN_INFO "In beiscsi_session_destroy\n");
 	pci_pool_destroy(beiscsi_sess->bhs_pool);
 	iscsi_session_teardown(cls_session);
 }
@@ -123,11 +129,13 @@ beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
 	struct iscsi_session *sess;
 	struct beiscsi_session *beiscsi_sess;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_create ,cid"
-		 "from iscsi layer=%d\n", cid);
 	shost = iscsi_session_to_shost(cls_session);
 	phba = iscsi_host_priv(shost);
 
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_conn_create ,cid"
+		    "from iscsi layer=%d\n", cid);
+
 	cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
 	if (!cls_conn)
 		return NULL;
@@ -154,12 +162,15 @@ static int beiscsi_bindconn_cid(struct beiscsi_hba *phba,
 				unsigned int cid)
 {
 	if (phba->conn_table[cid]) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Connection table already occupied. Detected clash\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Connection table already occupied. Detected clash\n");
+
 		return -EINVAL;
 	} else {
-		SE_DEBUG(DBG_LVL_8, "phba->conn_table[%d]=%p(beiscsi_conn)\n",
-			 cid, beiscsi_conn);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BS_%d : phba->conn_table[%d]=%p(beiscsi_conn)\n",
+			    cid, beiscsi_conn);
+
 		phba->conn_table[cid] = beiscsi_conn;
 	}
 	return 0;
@@ -184,7 +195,6 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
 	struct beiscsi_endpoint *beiscsi_ep;
 	struct iscsi_endpoint *ep;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_bind\n");
 	ep = iscsi_lookup_endpoint(transport_fd);
 	if (!ep)
 		return -EINVAL;
@@ -195,17 +205,21 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
 		return -EINVAL;
 
 	if (beiscsi_ep->phba != phba) {
-		SE_DEBUG(DBG_LVL_8,
-			 "beiscsi_ep->hba=%p not equal to phba=%p\n",
-			 beiscsi_ep->phba, phba);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
+			    beiscsi_ep->phba, phba);
+
 		return -EEXIST;
 	}
 
 	beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
 	beiscsi_conn->ep = beiscsi_ep;
 	beiscsi_ep->conn = beiscsi_conn;
-	SE_DEBUG(DBG_LVL_8, "beiscsi_conn=%p conn=%p ep_cid=%d\n",
-		 beiscsi_conn, conn, beiscsi_ep->ep_cid);
+
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : beiscsi_conn=%p conn=%p ep_cid=%d\n",
+		    beiscsi_conn, conn, beiscsi_ep->ep_cid);
+
 	return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
 }
 
@@ -219,8 +233,9 @@ static int beiscsi_create_ipv4_iface(struct beiscsi_hba *phba)
 					      ISCSI_IFACE_TYPE_IPV4,
 					      0, 0);
 	if (!phba->ipv4_iface) {
-		shost_printk(KERN_ERR, phba->shost, "Could not "
-			     "create default IPv4 address.\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Could not "
+			    "create default IPv4 address.\n");
 		return -ENODEV;
 	}
 
@@ -237,8 +252,9 @@ static int beiscsi_create_ipv6_iface(struct beiscsi_hba *phba)
 					      ISCSI_IFACE_TYPE_IPV6,
 					      0, 0);
 	if (!phba->ipv6_iface) {
-		shost_printk(KERN_ERR, phba->shost, "Could not "
-			     "create default IPv6 address.\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Could not "
+			    "create default IPv6 address.\n");
 		return -ENODEV;
 	}
 
@@ -299,12 +315,14 @@ beiscsi_set_static_ip(struct Scsi_Host *shost,
 			iface_ip = nla_data(nla);
 		break;
 	default:
-		shost_printk(KERN_ERR, shost, "Unsupported param %d\n",
-			     iface_param->param);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Unsupported param %d\n",
+			    iface_param->param);
 	}
 
 	if (!iface_ip || !iface_subnet) {
-		shost_printk(KERN_ERR, shost, "IP and Subnet Mask required\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : IP and Subnet Mask required\n");
 		return -EINVAL;
 	}
 
@@ -314,6 +332,51 @@ beiscsi_set_static_ip(struct Scsi_Host *shost,
 	return ret;
 }
 
+/**
+ * beiscsi_set_vlan_tag()- Set the VLAN TAG
+ * @shost: Scsi Host for the driver instance
+ * @iface_param: Interface paramters
+ *
+ * Set the VLAN TAG for the adapter or disable
+ * the VLAN config
+ *
+ * returns
+ *	Success: 0
+ *	Failure: Non-Zero Value
+ **/
+static int
+beiscsi_set_vlan_tag(struct Scsi_Host *shost,
+		      struct iscsi_iface_param_info *iface_param)
+{
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+	int ret = 0;
+
+	/* Get the Interface Handle */
+	if (mgmt_get_all_if_id(phba)) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Getting Interface Handle Failed\n");
+		return -EIO;
+	}
+
+	switch (iface_param->param) {
+	case ISCSI_NET_PARAM_VLAN_ENABLED:
+		if (iface_param->value[0] != ISCSI_VLAN_ENABLE)
+			ret = mgmt_set_vlan(phba, BEISCSI_VLAN_DISABLE);
+		break;
+	case ISCSI_NET_PARAM_VLAN_TAG:
+		ret = mgmt_set_vlan(phba,
+				    *((uint16_t *)iface_param->value));
+		break;
+	default:
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Unkown Param Type : %d\n",
+			    iface_param->param);
+		return -ENOSYS;
+	}
+	return ret;
+}
+
+
 static int
 beiscsi_set_ipv4(struct Scsi_Host *shost,
 		struct iscsi_iface_param_info *iface_param,
@@ -335,8 +398,9 @@ beiscsi_set_ipv4(struct Scsi_Host *shost,
 			ret = beiscsi_set_static_ip(shost, iface_param,
 						    data, dt_len);
 		else
-			shost_printk(KERN_ERR, shost, "Invalid BOOTPROTO: %d\n",
-					iface_param->value[0]);
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BS_%d : Invalid BOOTPROTO: %d\n",
+				    iface_param->value[0]);
 		break;
 	case ISCSI_NET_PARAM_IFACE_ENABLE:
 		if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
@@ -349,9 +413,14 @@ beiscsi_set_ipv4(struct Scsi_Host *shost,
 		ret = beiscsi_set_static_ip(shost, iface_param,
 					    data, dt_len);
 		break;
+	case ISCSI_NET_PARAM_VLAN_ENABLED:
+	case ISCSI_NET_PARAM_VLAN_TAG:
+		ret = beiscsi_set_vlan_tag(shost, iface_param);
+		break;
 	default:
-		shost_printk(KERN_ERR, shost, "Param %d not supported\n",
-			     iface_param->param);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Param %d not supported\n",
+			    iface_param->param);
 	}
 
 	return ret;
@@ -379,8 +448,9 @@ beiscsi_set_ipv6(struct Scsi_Host *shost,
 				  ISCSI_BOOTPROTO_STATIC);
 		break;
 	default:
-		shost_printk(KERN_ERR, shost, "Param %d not supported\n",
-			     iface_param->param);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Param %d not supported\n",
+			    iface_param->param);
 	}
 
 	return ret;
@@ -390,6 +460,7 @@ int be2iscsi_iface_set_param(struct Scsi_Host *shost,
 		void *data, uint32_t dt_len)
 {
 	struct iscsi_iface_param_info *iface_param = NULL;
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
 	struct nlattr *attrib;
 	uint32_t rm_len = dt_len;
 	int ret = 0 ;
@@ -404,9 +475,11 @@ int be2iscsi_iface_set_param(struct Scsi_Host *shost,
 		 * BE2ISCSI only supports 1 interface
 		 */
 		if (iface_param->iface_num) {
-			shost_printk(KERN_ERR, shost, "Invalid iface_num %d."
-				     "Only iface_num 0 is supported.\n",
-				     iface_param->iface_num);
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BS_%d : Invalid iface_num %d."
+				    "Only iface_num 0 is supported.\n",
+				    iface_param->iface_num);
+
 			return -EINVAL;
 		}
 
@@ -420,9 +493,9 @@ int be2iscsi_iface_set_param(struct Scsi_Host *shost,
 					       data, dt_len);
 			break;
 		default:
-			shost_printk(KERN_ERR, shost,
-				     "Invalid iface type :%d passed\n",
-				     iface_param->iface_type);
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BS_%d : Invalid iface type :%d passed\n",
+				    iface_param->iface_type);
 			break;
 		}
 
@@ -465,6 +538,27 @@ static int be2iscsi_get_if_param(struct beiscsi_hba *phba,
 	case ISCSI_NET_PARAM_IPV4_SUBNET:
 		len = sprintf(buf, "%pI4\n", &if_info.ip_addr.subnet_mask);
 		break;
+	case ISCSI_NET_PARAM_VLAN_ENABLED:
+		len = sprintf(buf, "%s\n",
+			     (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
+			     ? "Disabled" : "Enabled");
+		break;
+	case ISCSI_NET_PARAM_VLAN_ID:
+		if (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
+			return -EINVAL;
+		else
+			len = sprintf(buf, "%d\n",
+				     (if_info.vlan_priority &
+				     ISCSI_MAX_VLAN_ID));
+		break;
+	case ISCSI_NET_PARAM_VLAN_PRIORITY:
+		if (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
+			return -EINVAL;
+		else
+			len = sprintf(buf, "%d\n",
+				     ((if_info.vlan_priority >> 13) &
+				     ISCSI_MAX_VLAN_PRIORITY));
+		break;
 	default:
 		WARN_ON(1);
 	}
@@ -486,6 +580,9 @@ int be2iscsi_iface_get_param(struct iscsi_iface *iface,
 	case ISCSI_NET_PARAM_IPV4_SUBNET:
 	case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
 	case ISCSI_NET_PARAM_IPV6_ADDR:
+	case ISCSI_NET_PARAM_VLAN_ENABLED:
+	case ISCSI_NET_PARAM_VLAN_ID:
+	case ISCSI_NET_PARAM_VLAN_PRIORITY:
 		len = be2iscsi_get_if_param(phba, iface, param, buf);
 		break;
 	case ISCSI_NET_PARAM_IFACE_ENABLE:
@@ -518,7 +615,10 @@ int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
 	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
 	int len = 0;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_get_param, param= %d\n", param);
+	beiscsi_log(beiscsi_ep->phba, KERN_INFO,
+		    BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_ep_get_param,"
+		    " param= %d\n", param);
 
 	switch (param) {
 	case ISCSI_PARAM_CONN_PORT:
@@ -541,9 +641,14 @@ int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
 	struct iscsi_session *session = conn->session;
+	struct beiscsi_hba *phba = NULL;
 	int ret;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_set_param, param= %d\n", param);
+	phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_conn_set_param,"
+		    " param= %d\n", param);
+
 	ret = iscsi_set_param(cls_conn, param, buf, buflen);
 	if (ret)
 		return ret;
@@ -593,7 +698,9 @@ static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba)
 
 	tag = be_cmd_get_initname(phba);
 	if (!tag) {
-		SE_DEBUG(DBG_LVL_1, "Getting Initiator Name Failed\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Getting Initiator Name Failed\n");
+
 		return -EBUSY;
 	} else
 		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
@@ -604,9 +711,12 @@ static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba)
 	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
 
 	if (status || extd_status) {
-		SE_DEBUG(DBG_LVL_1, "MailBox Command Failed with "
-				"status = %d extd_status = %d\n",
-				status, extd_status);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BS_%d : MailBox Command Failed with "
+			    "status = %d extd_status = %d\n",
+			    status, extd_status);
+
 		free_mcc_tag(&phba->ctrl, tag);
 		return -EAGAIN;
 	}
@@ -650,7 +760,9 @@ static int beiscsi_get_port_speed(struct Scsi_Host *shost)
 
 	tag = be_cmd_get_port_speed(phba);
 	if (!tag) {
-		SE_DEBUG(DBG_LVL_1, "Getting Port Speed Failed\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Getting Port Speed Failed\n");
+
 		 return -EBUSY;
 	 } else
 		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
@@ -661,9 +773,12 @@ static int beiscsi_get_port_speed(struct Scsi_Host *shost)
 	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
 
 	if (status || extd_status) {
-		SE_DEBUG(DBG_LVL_1, "MailBox Command Failed with "
-				"status = %d extd_status = %d\n",
-				status, extd_status);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BS_%d : MailBox Command Failed with "
+			    "status = %d extd_status = %d\n",
+			    status, extd_status);
+
 		free_mcc_tag(&phba->ctrl, tag);
 		return -EAGAIN;
 	}
@@ -704,20 +819,24 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
 	int status = 0;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_get_host_param, param= %d\n", param);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_get_host_param,"
+		    " param= %d\n", param);
+
 	switch (param) {
 	case ISCSI_HOST_PARAM_HWADDRESS:
 		status = beiscsi_get_macaddr(buf, phba);
 		if (status < 0) {
-			SE_DEBUG(DBG_LVL_1, "beiscsi_get_macaddr Failed\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BS_%d : beiscsi_get_macaddr Failed\n");
 			return status;
 		}
 		break;
 	case ISCSI_HOST_PARAM_INITIATOR_NAME:
 		status = beiscsi_get_initname(buf, phba);
 		if (status < 0) {
-			SE_DEBUG(DBG_LVL_1,
-					"Retreiving Initiator Name Failed\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BS_%d : Retreiving Initiator Name Failed\n");
 			return status;
 		}
 		break;
@@ -728,8 +847,8 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
 	case ISCSI_HOST_PARAM_PORT_SPEED:
 		status = beiscsi_get_port_speed(shost);
 		if (status) {
-			SE_DEBUG(DBG_LVL_1,
-					"Retreiving Port Speed Failed\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BS_%d : Retreiving Port Speed Failed\n");
 			return status;
 		}
 		status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
@@ -746,7 +865,7 @@ int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
 	int rc;
 
 	if (strlen(phba->mac_address))
-		return strlcpy(buf, phba->mac_address, PAGE_SIZE);
+		return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
 
 	memset(&resp, 0, sizeof(resp));
 	rc = mgmt_get_nic_conf(phba, &resp);
@@ -768,8 +887,12 @@ void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
 			    struct iscsi_stats *stats)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct beiscsi_hba *phba = NULL;
+
+	phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_conn_get_stats\n");
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_stats\n");
 	stats->txdata_octets = conn->txdata_octets;
 	stats->rxdata_octets = conn->rxdata_octets;
 	stats->dataout_pdus = conn->dataout_pdus_cnt;
@@ -829,11 +952,16 @@ int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
 	struct beiscsi_endpoint *beiscsi_ep;
 	struct beiscsi_offload_params params;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_start\n");
+	beiscsi_log(beiscsi_conn->phba, KERN_INFO,
+		    BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_conn_start\n");
+
 	memset(&params, 0, sizeof(struct beiscsi_offload_params));
 	beiscsi_ep = beiscsi_conn->ep;
 	if (!beiscsi_ep)
-		SE_DEBUG(DBG_LVL_1, "In beiscsi_conn_start , no beiscsi_ep\n");
+		beiscsi_log(beiscsi_conn->phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG,
+			    "BS_%d : In beiscsi_conn_start , no beiscsi_ep\n");
 
 	beiscsi_conn->login_in_progress = 0;
 	beiscsi_set_params_for_offld(beiscsi_conn, &params);
@@ -907,19 +1035,27 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
 	unsigned int tag, wrb_num;
 	int ret = -ENOMEM;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn\n");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_open_conn\n");
+
 	beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
 	if (beiscsi_ep->ep_cid == 0xFFFF) {
-		SE_DEBUG(DBG_LVL_1, "No free cid available\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : No free cid available\n");
 		return ret;
 	}
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn, ep_cid=%d\n",
-		 beiscsi_ep->ep_cid);
+
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_open_conn, ep_cid=%d\n",
+		    beiscsi_ep->ep_cid);
+
 	phba->ep_array[beiscsi_ep->ep_cid -
 		       phba->fw_config.iscsi_cid_start] = ep;
 	if (beiscsi_ep->ep_cid > (phba->fw_config.iscsi_cid_start +
 				  phba->params.cxns_per_ctrl * 2)) {
-		SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Failed in allocate iscsi cid\n");
 		goto free_ep;
 	}
 
@@ -928,9 +1064,11 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
 				sizeof(struct tcp_connect_and_offload_in),
 				&nonemb_cmd.dma);
 	if (nonemb_cmd.va == NULL) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Failed to allocate memory for mgmt_open_connection"
-			 "\n");
+
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Failed to allocate memory for"
+			    " mgmt_open_connection\n");
+
 		beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
 		return -ENOMEM;
 	}
@@ -938,9 +1076,10 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
 	memset(nonemb_cmd.va, 0, nonemb_cmd.size);
 	tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
 	if (!tag) {
-		SE_DEBUG(DBG_LVL_1,
-			 "mgmt_open_connection Failed for cid=%d\n",
-			 beiscsi_ep->ep_cid);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : mgmt_open_connection Failed for cid=%d\n",
+			    beiscsi_ep->ep_cid);
+
 		beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
 		pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 				    nonemb_cmd.va, nonemb_cmd.dma);
@@ -953,9 +1092,12 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
 	extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
 	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
 	if (status || extd_status) {
-		SE_DEBUG(DBG_LVL_1, "mgmt_open_connection Failed"
-				    " status = %d extd_status = %d\n",
-				    status, extd_status);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BS_%d : mgmt_open_connection Failed"
+			    " status = %d extd_status = %d\n",
+			    status, extd_status);
+
 		free_mcc_tag(&phba->ctrl, tag);
 		pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 			    nonemb_cmd.va, nonemb_cmd.dma);
@@ -968,7 +1110,8 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
 		beiscsi_ep = ep->dd_data;
 		beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
 		beiscsi_ep->cid_vld = 1;
-		SE_DEBUG(DBG_LVL_8, "mgmt_open_connection Success\n");
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BS_%d : mgmt_open_connection Success\n");
 	}
 	pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 			    nonemb_cmd.va, nonemb_cmd.dma);
@@ -996,18 +1139,19 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 	struct iscsi_endpoint *ep;
 	int ret;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_connect\n");
 	if (shost)
 		phba = iscsi_host_priv(shost);
 	else {
 		ret = -ENXIO;
-		SE_DEBUG(DBG_LVL_1, "shost is NULL\n");
+		printk(KERN_ERR
+		       "beiscsi_ep_connect shost is NULL\n");
 		return ERR_PTR(ret);
 	}
 
 	if (phba->state != BE_ADAPTER_UP) {
 		ret = -EBUSY;
-		SE_DEBUG(DBG_LVL_1, "The Adapter state is Not UP\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : The Adapter state is Not UP\n");
 		return ERR_PTR(ret);
 	}
 
@@ -1022,7 +1166,8 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 	beiscsi_ep->openiscsi_ep = ep;
 	ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking);
 	if (ret) {
-		SE_DEBUG(DBG_LVL_1, "Failed in beiscsi_open_conn\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Failed in beiscsi_open_conn\n");
 		goto free_ep;
 	}
 
@@ -1044,7 +1189,9 @@ int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 {
 	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
 
-	SE_DEBUG(DBG_LVL_8, "In  beiscsi_ep_poll\n");
+	beiscsi_log(beiscsi_ep->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In  beiscsi_ep_poll\n");
+
 	if (beiscsi_ep->cid_vld == 1)
 		return 1;
 	else
@@ -1064,8 +1211,10 @@ static int beiscsi_close_conn(struct  beiscsi_endpoint *beiscsi_ep, int flag)
 
 	tag = mgmt_upload_connection(phba, beiscsi_ep->ep_cid, flag);
 	if (!tag) {
-		SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x\n",
-			 beiscsi_ep->ep_cid);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BS_%d : upload failed for cid 0x%x\n",
+			    beiscsi_ep->ep_cid);
+
 		ret = -EAGAIN;
 	} else {
 		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
@@ -1086,7 +1235,8 @@ static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba,
 	if (phba->conn_table[cid])
 		phba->conn_table[cid] = NULL;
 	else {
-		SE_DEBUG(DBG_LVL_8, "Connection table Not occupied.\n");
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BS_%d : Connection table Not occupied.\n");
 		return -EINVAL;
 	}
 	return 0;
@@ -1104,38 +1254,40 @@ void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
 	struct beiscsi_endpoint *beiscsi_ep;
 	struct beiscsi_hba *phba;
 	unsigned int tag;
+	uint8_t mgmt_invalidate_flag, tcp_upload_flag;
 	unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH;
 
 	beiscsi_ep = ep->dd_data;
 	phba = beiscsi_ep->phba;
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect for ep_cid = %d\n",
-			     beiscsi_ep->ep_cid);
-
-	if (!beiscsi_ep->conn) {
-		SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect, no "
-			 "beiscsi_ep\n");
-		return;
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BS_%d : In beiscsi_ep_disconnect for ep_cid = %d\n",
+		    beiscsi_ep->ep_cid);
+
+	if (beiscsi_ep->conn) {
+		beiscsi_conn = beiscsi_ep->conn;
+		iscsi_suspend_queue(beiscsi_conn->conn);
+		mgmt_invalidate_flag = ~BEISCSI_NO_RST_ISSUE;
+		tcp_upload_flag = CONNECTION_UPLOAD_GRACEFUL;
+	} else {
+		mgmt_invalidate_flag = BEISCSI_NO_RST_ISSUE;
+		tcp_upload_flag = CONNECTION_UPLOAD_ABORT;
 	}
-	beiscsi_conn = beiscsi_ep->conn;
-	iscsi_suspend_queue(beiscsi_conn->conn);
-
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect ep_cid = %d\n",
-		 beiscsi_ep->ep_cid);
 
 	tag = mgmt_invalidate_connection(phba, beiscsi_ep,
-					    beiscsi_ep->ep_cid, 1,
-					    savecfg_flag);
+					  beiscsi_ep->ep_cid,
+					  mgmt_invalidate_flag,
+					  savecfg_flag);
 	if (!tag) {
-		SE_DEBUG(DBG_LVL_1,
-			 "mgmt_invalidate_connection Failed for cid=%d\n",
-			  beiscsi_ep->ep_cid);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : mgmt_invalidate_connection Failed for cid=%d\n",
+			    beiscsi_ep->ep_cid);
 	} else {
 		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
 					 phba->ctrl.mcc_numtag[tag]);
 		free_mcc_tag(&phba->ctrl, tag);
 	}
 
-	beiscsi_close_conn(beiscsi_ep, CONNECTION_UPLOAD_GRACEFUL);
+	beiscsi_close_conn(beiscsi_ep, tcp_upload_flag);
 	beiscsi_free_ep(beiscsi_ep);
 	beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
 	iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
@@ -1152,6 +1304,9 @@ umode_t be2iscsi_attr_is_visible(int param_type, int param)
 		case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
 		case ISCSI_NET_PARAM_IPV4_GW:
 		case ISCSI_NET_PARAM_IPV6_ADDR:
+		case ISCSI_NET_PARAM_VLAN_ID:
+		case ISCSI_NET_PARAM_VLAN_PRIORITY:
+		case ISCSI_NET_PARAM_VLAN_ENABLED:
 			return S_IRUGO;
 		default:
 			return 0;
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 0b1d99c99fd..ff73f9500b0 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -42,6 +42,7 @@
 #include "be_main.h"
 #include "be_iscsi.h"
 #include "be_mgmt.h"
+#include "be_cmds.h"
 
 static unsigned int be_iopoll_budget = 10;
 static unsigned int be_max_phys_size = 64;
@@ -57,9 +58,105 @@ MODULE_LICENSE("GPL");
 module_param(be_iopoll_budget, int, 0);
 module_param(enable_msix, int, 0);
 module_param(be_max_phys_size, uint, S_IRUGO);
-MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically"
-				   "contiguous memory that can be allocated."
-				   "Range is 16 - 128");
+MODULE_PARM_DESC(be_max_phys_size,
+		"Maximum Size (In Kilobytes) of physically contiguous "
+		"memory that can be allocated. Range is 16 - 128");
+
+#define beiscsi_disp_param(_name)\
+ssize_t	\
+beiscsi_##_name##_disp(struct device *dev,\
+			struct device_attribute *attrib, char *buf)	\
+{	\
+	struct Scsi_Host *shost = class_to_shost(dev);\
+	struct beiscsi_hba *phba = iscsi_host_priv(shost); \
+	uint32_t param_val = 0;	\
+	param_val = phba->attr_##_name;\
+	return snprintf(buf, PAGE_SIZE, "%d\n",\
+			phba->attr_##_name);\
+}
+
+#define beiscsi_change_param(_name, _minval, _maxval, _defaval)\
+int \
+beiscsi_##_name##_change(struct beiscsi_hba *phba, uint32_t val)\
+{\
+	if (val >= _minval && val <= _maxval) {\
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
+			    "BA_%d : beiscsi_"#_name" updated "\
+			    "from 0x%x ==> 0x%x\n",\
+			    phba->attr_##_name, val); \
+		phba->attr_##_name = val;\
+		return 0;\
+	} \
+	beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, \
+		    "BA_%d beiscsi_"#_name" attribute "\
+		    "cannot be updated to 0x%x, "\
+		    "range allowed is ["#_minval" - "#_maxval"]\n", val);\
+		return -EINVAL;\
+}
+
+#define beiscsi_store_param(_name)  \
+ssize_t \
+beiscsi_##_name##_store(struct device *dev,\
+			 struct device_attribute *attr, const char *buf,\
+			 size_t count) \
+{ \
+	struct Scsi_Host  *shost = class_to_shost(dev);\
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);\
+	uint32_t param_val = 0;\
+	if (!isdigit(buf[0]))\
+		return -EINVAL;\
+	if (sscanf(buf, "%i", &param_val) != 1)\
+		return -EINVAL;\
+	if (beiscsi_##_name##_change(phba, param_val) == 0) \
+		return strlen(buf);\
+	else \
+		return -EINVAL;\
+}
+
+#define beiscsi_init_param(_name, _minval, _maxval, _defval) \
+int \
+beiscsi_##_name##_init(struct beiscsi_hba *phba, uint32_t val) \
+{ \
+	if (val >= _minval && val <= _maxval) {\
+		phba->attr_##_name = val;\
+		return 0;\
+	} \
+	beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
+		    "BA_%d beiscsi_"#_name" attribute " \
+		    "cannot be updated to 0x%x, "\
+		    "range allowed is ["#_minval" - "#_maxval"]\n", val);\
+	phba->attr_##_name = _defval;\
+	return -EINVAL;\
+}
+
+#define BEISCSI_RW_ATTR(_name, _minval, _maxval, _defval, _descp) \
+static uint beiscsi_##_name = _defval;\
+module_param(beiscsi_##_name, uint, S_IRUGO);\
+MODULE_PARM_DESC(beiscsi_##_name, _descp);\
+beiscsi_disp_param(_name)\
+beiscsi_change_param(_name, _minval, _maxval, _defval)\
+beiscsi_store_param(_name)\
+beiscsi_init_param(_name, _minval, _maxval, _defval)\
+DEVICE_ATTR(beiscsi_##_name, S_IRUGO | S_IWUSR,\
+	      beiscsi_##_name##_disp, beiscsi_##_name##_store)
+
+/*
+ * When new log level added update the
+ * the MAX allowed value for log_enable
+ */
+BEISCSI_RW_ATTR(log_enable, 0x00,
+		0xFF, 0x00, "Enable logging Bit Mask\n"
+		"\t\t\t\tInitialization Events	: 0x01\n"
+		"\t\t\t\tMailbox Events		: 0x02\n"
+		"\t\t\t\tMiscellaneous Events	: 0x04\n"
+		"\t\t\t\tError Handling		: 0x08\n"
+		"\t\t\t\tIO Path Events		: 0x10\n"
+		"\t\t\t\tConfiguration Path	: 0x20\n");
+
+struct device_attribute *beiscsi_attrs[] = {
+	&dev_attr_beiscsi_log_enable,
+	NULL,
+};
 
 static int beiscsi_slave_configure(struct scsi_device *sdev)
 {
@@ -112,9 +209,9 @@ static int beiscsi_eh_abort(struct scsi_cmnd *sc)
 				sizeof(struct invalidate_commands_params_in),
 				&nonemb_cmd.dma);
 	if (nonemb_cmd.va == NULL) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Failed to allocate memory for"
-			 "mgmt_invalidate_icds\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
+			    "BM_%d : Failed to allocate memory for"
+			    "mgmt_invalidate_icds\n");
 		return FAILED;
 	}
 	nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
@@ -122,9 +219,9 @@ static int beiscsi_eh_abort(struct scsi_cmnd *sc)
 	tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
 				   cid, &nonemb_cmd);
 	if (!tag) {
-		shost_printk(KERN_WARNING, phba->shost,
-			     "mgmt_invalidate_icds could not be"
-			     " submitted\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
+			    "BM_%d : mgmt_invalidate_icds could not be"
+			    "submitted\n");
 		pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 				    nonemb_cmd.va, nonemb_cmd.dma);
 
@@ -188,9 +285,9 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
 				sizeof(struct invalidate_commands_params_in),
 				&nonemb_cmd.dma);
 	if (nonemb_cmd.va == NULL) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Failed to allocate memory for"
-			 "mgmt_invalidate_icds\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
+			    "BM_%d : Failed to allocate memory for"
+			    "mgmt_invalidate_icds\n");
 		return FAILED;
 	}
 	nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
@@ -198,9 +295,9 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
 	tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
 				   cid, &nonemb_cmd);
 	if (!tag) {
-		shost_printk(KERN_WARNING, phba->shost,
-			     "mgmt_invalidate_icds could not be"
-			     " submitted\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
+			    "BM_%d : mgmt_invalidate_icds could not be"
+			    " submitted\n");
 		pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 				    nonemb_cmd.va, nonemb_cmd.dma);
 		return FAILED;
@@ -389,6 +486,7 @@ static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
 };
 MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
 
+
 static struct scsi_host_template beiscsi_sht = {
 	.module = THIS_MODULE,
 	.name = "Emulex 10Gbe open-iscsi Initiator Driver",
@@ -400,6 +498,7 @@ static struct scsi_host_template beiscsi_sht = {
 	.eh_abort_handler = beiscsi_eh_abort,
 	.eh_device_reset_handler = beiscsi_eh_device_reset,
 	.eh_target_reset_handler = iscsi_eh_session_reset,
+	.shost_attrs = beiscsi_attrs,
 	.sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
 	.can_queue = BE2_IO_DEPTH,
 	.this_id = -1,
@@ -419,8 +518,8 @@ static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
 
 	shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
 	if (!shost) {
-		dev_err(&pcidev->dev, "beiscsi_hba_alloc -"
-			"iscsi_host_alloc failed\n");
+		dev_err(&pcidev->dev,
+			"beiscsi_hba_alloc - iscsi_host_alloc failed\n");
 		return NULL;
 	}
 	shost->dma_boundary = pcidev->dma_mask;
@@ -510,8 +609,8 @@ static int beiscsi_enable_pci(struct pci_dev *pcidev)
 
 	ret = pci_enable_device(pcidev);
 	if (ret) {
-		dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device "
-			"failed. Returning -ENODEV\n");
+		dev_err(&pcidev->dev,
+			"beiscsi_enable_pci - enable device failed\n");
 		return ret;
 	}
 
@@ -576,8 +675,9 @@ static void beiscsi_get_params(struct beiscsi_hba *phba)
 				    + BE2_TMFS) / 512) + 1) * 512;
 	phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024)
 				? 1024 : phba->params.num_eq_entries;
-	SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d\n",
-			     phba->params.num_eq_entries);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : phba->params.num_eq_entries=%d\n",
+		    phba->params.num_eq_entries);
 	phba->params.num_cq_entries =
 	    (((BE2_CMDS_PER_CXN * 2 +  phba->fw_config.iscsi_cid_count * 2
 				    + BE2_TMFS) / 512) + 1) * 512;
@@ -621,8 +721,6 @@ static irqreturn_t be_isr_mcc(int irq, void *dev_id)
 	phba =  pbe_eq->phba;
 	mcc = &phba->ctrl.mcc_obj.cq;
 	eqe = queue_tail_node(eq);
-	if (!eqe)
-		SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
 
 	num_eq_processed = 0;
 
@@ -667,8 +765,6 @@ static irqreturn_t be_isr_msix(int irq, void *dev_id)
 	eq = &pbe_eq->q;
 	cq = pbe_eq->cq;
 	eqe = queue_tail_node(eq);
-	if (!eqe)
-		SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
 
 	phba = pbe_eq->phba;
 	num_eq_processed = 0;
@@ -743,8 +839,6 @@ static irqreturn_t be_isr(int irq, void *dev_id)
 	mcc = &phba->ctrl.mcc_obj.cq;
 	index = 0;
 	eqe = queue_tail_node(eq);
-	if (!eqe)
-		SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
 
 	num_ioeq_processed = 0;
 	num_mcceq_processed = 0;
@@ -842,9 +936,10 @@ static int beiscsi_init_irqs(struct beiscsi_hba *phba)
 					  phba->msi_name[i],
 					  &phwi_context->be_eq[i]);
 			if (ret) {
-				shost_printk(KERN_ERR, phba->shost,
-					     "beiscsi_init_irqs-Failed to"
-					     "register msix for i = %d\n", i);
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : beiscsi_init_irqs-Failed to"
+					    "register msix for i = %d\n",
+					    i);
 				kfree(phba->msi_name[i]);
 				goto free_msix_irqs;
 			}
@@ -860,8 +955,9 @@ static int beiscsi_init_irqs(struct beiscsi_hba *phba)
 		ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i],
 				  &phwi_context->be_eq[i]);
 		if (ret) {
-			shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
-				     "Failed to register beiscsi_msix_mcc\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT ,
+				    "BM_%d : beiscsi_init_irqs-"
+				    "Failed to register beiscsi_msix_mcc\n");
 			kfree(phba->msi_name[i]);
 			goto free_msix_irqs;
 		}
@@ -870,8 +966,9 @@ static int beiscsi_init_irqs(struct beiscsi_hba *phba)
 		ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED,
 				  "beiscsi", phba);
 		if (ret) {
-			shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
-				     "Failed to register irq\\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : beiscsi_init_irqs-"
+				    "Failed to register irq\\n");
 			return ret;
 		}
 	}
@@ -922,7 +1019,9 @@ beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
 	case ISCSI_OP_REJECT:
 		WARN_ON(!pbuffer);
 		WARN_ON(!(buf_len == 48));
-		SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+			    "BM_%d : In ISCSI_OP_REJECT\n");
 		break;
 	case ISCSI_OP_LOGIN_RSP:
 	case ISCSI_OP_TEXT_RSP:
@@ -932,11 +1031,12 @@ beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
 		login_hdr->itt = io_task->libiscsi_itt;
 		break;
 	default:
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Unrecognized opcode 0x%x in async msg\n",
-			     (ppdu->
+		beiscsi_log(phba, KERN_WARNING,
+			    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+			    "BM_%d : Unrecognized opcode 0x%x in async msg\n",
+			    (ppdu->
 			     dw[offsetof(struct amap_pdu_base, opcode) / 32]
-						& PDUBASE_OPCODE_MASK));
+			     & PDUBASE_OPCODE_MASK));
 		return 1;
 	}
 
@@ -951,9 +1051,11 @@ static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
 	struct sgl_handle *psgl_handle;
 
 	if (phba->io_sgl_hndl_avbl) {
-		SE_DEBUG(DBG_LVL_8,
-			 "In alloc_io_sgl_handle,io_sgl_alloc_index=%d\n",
-			 phba->io_sgl_alloc_index);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
+			    "BM_%d : In alloc_io_sgl_handle,"
+			    " io_sgl_alloc_index=%d\n",
+			    phba->io_sgl_alloc_index);
+
 		psgl_handle = phba->io_sgl_hndl_base[phba->
 						io_sgl_alloc_index];
 		phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
@@ -971,17 +1073,20 @@ static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
 static void
 free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
 {
-	SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d\n",
-		 phba->io_sgl_free_index);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
+		    "BM_%d : In free_,io_sgl_free_index=%d\n",
+		    phba->io_sgl_free_index);
+
 	if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
 		/*
 		 * this can happen if clean_task is called on a task that
 		 * failed in xmit_task or alloc_pdu.
 		 */
-		 SE_DEBUG(DBG_LVL_8,
-			 "Double Free in IO SGL io_sgl_free_index=%d,"
-			 "value there=%p\n", phba->io_sgl_free_index,
-			 phba->io_sgl_hndl_base[phba->io_sgl_free_index]);
+		 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
+			     "BM_%d : Double Free in IO SGL io_sgl_free_index=%d,"
+			     "value there=%p\n", phba->io_sgl_free_index,
+			     phba->io_sgl_hndl_base
+			     [phba->io_sgl_free_index]);
 		return;
 	}
 	phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
@@ -1043,11 +1148,12 @@ free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
 	else
 		pwrb_context->free_index++;
 
-	SE_DEBUG(DBG_LVL_8,
-		 "FREE WRB: pwrb_handle=%p free_index=0x%x"
-		 "wrb_handles_available=%d\n",
-		 pwrb_handle, pwrb_context->free_index,
-		 pwrb_context->wrb_handles_available);
+	beiscsi_log(phba, KERN_INFO,
+		    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+		    "BM_%d : FREE WRB: pwrb_handle=%p free_index=0x%x"
+		    "wrb_handles_available=%d\n",
+		    pwrb_handle, pwrb_context->free_index,
+		    pwrb_context->wrb_handles_available);
 }
 
 static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
@@ -1057,8 +1163,11 @@ static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
 	if (phba->eh_sgl_hndl_avbl) {
 		psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
 		phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
-		SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x\n",
-			 phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BM_%d : mgmt_sgl_alloc_index=%d=0x%x\n",
+			    phba->eh_sgl_alloc_index,
+			    phba->eh_sgl_alloc_index);
+
 		phba->eh_sgl_hndl_avbl--;
 		if (phba->eh_sgl_alloc_index ==
 		    (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
@@ -1075,16 +1184,20 @@ void
 free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
 {
 
-	SE_DEBUG(DBG_LVL_8, "In  free_mgmt_sgl_handle,eh_sgl_free_index=%d\n",
-			     phba->eh_sgl_free_index);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BM_%d : In  free_mgmt_sgl_handle,"
+		    "eh_sgl_free_index=%d\n",
+		    phba->eh_sgl_free_index);
+
 	if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
 		/*
 		 * this can happen if clean_task is called on a task that
 		 * failed in xmit_task or alloc_pdu.
 		 */
-		SE_DEBUG(DBG_LVL_8,
-			 "Double Free in eh SGL ,eh_sgl_free_index=%d\n",
-			 phba->eh_sgl_free_index);
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BM_%d : Double Free in eh SGL ,"
+			    "eh_sgl_free_index=%d\n",
+			    phba->eh_sgl_free_index);
 		return;
 	}
 	phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
@@ -1326,9 +1439,10 @@ static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
 		break;
 
 	case HWH_TYPE_LOGIN:
-		SE_DEBUG(DBG_LVL_1,
-			 "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd"
-			 "- Solicited path\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+			    "BM_%d :\t\t No HWH_TYPE_LOGIN Expected in"
+			    " hwi_complete_cmd- Solicited path\n");
 		break;
 
 	case HWH_TYPE_NOP:
@@ -1336,13 +1450,14 @@ static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
 		break;
 
 	default:
-		shost_printk(KERN_WARNING, phba->shost,
-				"In hwi_complete_cmd, unknown type = %d"
-				"wrb_index 0x%x CID 0x%x\n", type,
-				((psol->dw[offsetof(struct amap_iscsi_wrb,
-				type) / 32] & SOL_WRB_INDEX_MASK) >> 16),
-				((psol->dw[offsetof(struct amap_sol_cqe,
-				cid) / 32] & SOL_CID_MASK) >> 6));
+		beiscsi_log(phba, KERN_WARNING,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+			    "BM_%d : In hwi_complete_cmd, unknown type = %d"
+			    "wrb_index 0x%x CID 0x%x\n", type,
+			    ((psol->dw[offsetof(struct amap_iscsi_wrb,
+			    type) / 32] & SOL_WRB_INDEX_MASK) >> 16),
+			    ((psol->dw[offsetof(struct amap_sol_cqe,
+			    cid) / 32] & SOL_CID_MASK) >> 6));
 		break;
 	}
 
@@ -1397,10 +1512,11 @@ hwi_get_async_handle(struct beiscsi_hba *phba,
 		break;
 	default:
 		pbusy_list = NULL;
-		shost_printk(KERN_WARNING, phba->shost,
-			"Unexpected code=%d\n",
-			 pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
-					code) / 32] & PDUCQE_CODE_MASK);
+		beiscsi_log(phba, KERN_WARNING,
+			    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+			    "BM_%d : Unexpected code=%d\n",
+			    pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+			    code) / 32] & PDUCQE_CODE_MASK);
 		return NULL;
 	}
 
@@ -1425,8 +1541,9 @@ hwi_get_async_handle(struct beiscsi_hba *phba,
 }
 
 static unsigned int
-hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx,
-			   unsigned int is_header, unsigned int cq_index)
+hwi_update_async_writables(struct beiscsi_hba *phba,
+			    struct hwi_async_pdu_context *pasync_ctx,
+			    unsigned int is_header, unsigned int cq_index)
 {
 	struct list_head *pbusy_list;
 	struct async_pdu_handle *pasync_handle;
@@ -1463,9 +1580,10 @@ hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx,
 	}
 
 	if (!writables) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Duplicate notification received - index 0x%x!!\n",
-			 cq_index);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+			    "BM_%d : Duplicate notification received - index 0x%x!!\n",
+			    cq_index);
 		WARN_ON(1);
 	}
 
@@ -1616,8 +1734,8 @@ static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
 					     pdpdu_cqe, &cq_index);
 	BUG_ON(pasync_handle->is_header != 0);
 	if (pasync_handle->consumed == 0)
-		hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
-					   cq_index);
+		hwi_update_async_writables(phba, pasync_ctx,
+					   pasync_handle->is_header, cq_index);
 
 	hwi_free_async_msg(phba, pasync_handle->cri);
 	hwi_post_async_buffers(phba, pasync_handle->is_header);
@@ -1745,8 +1863,9 @@ static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
 					     pdpdu_cqe, &cq_index);
 
 	if (pasync_handle->consumed == 0)
-		hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
-					   cq_index);
+		hwi_update_async_writables(phba, pasync_ctx,
+					   pasync_handle->is_header, cq_index);
+
 	hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
 	hwi_post_async_buffers(phba, pasync_handle->is_header);
 }
@@ -1774,9 +1893,10 @@ static void  beiscsi_process_mcc_isr(struct beiscsi_hba *phba)
 				beiscsi_async_link_state_process(phba,
 				(struct be_async_event_link_state *) mcc_compl);
 			else
-				SE_DEBUG(DBG_LVL_1,
-					" Unsupported Async Event, flags"
-					" = 0x%08x\n", mcc_compl->flags);
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_MBOX,
+					    "BM_%d :  Unsupported Async Event, flags"
+					    " = 0x%08x\n",
+					    mcc_compl->flags);
 		} else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) {
 			be_mcc_compl_process_isr(&phba->ctrl, mcc_compl);
 			atomic_dec(&phba->ctrl.mcc_obj.q.used);
@@ -1801,6 +1921,7 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 	struct dmsg_cqe *dmsg;
 	unsigned int num_processed = 0;
 	unsigned int tot_nump = 0;
+	unsigned short code = 0, cid = 0;
 	struct beiscsi_conn *beiscsi_conn;
 	struct beiscsi_endpoint *beiscsi_ep;
 	struct iscsi_endpoint *ep;
@@ -1814,10 +1935,11 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 	       CQE_VALID_MASK) {
 		be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
 
-		ep = phba->ep_array[(u32) ((sol->
-				   dw[offsetof(struct amap_sol_cqe, cid) / 32] &
-				   SOL_CID_MASK) >> 6) -
-				   phba->fw_config.iscsi_cid_start];
+		cid = ((sol->dw[offsetof(struct amap_sol_cqe, cid)/32] &
+		      CQE_CID_MASK) >> 6);
+		code = (sol->dw[offsetof(struct amap_sol_cqe, code)/32] &
+		       CQE_CODE_MASK);
+		ep = phba->ep_array[cid - phba->fw_config.iscsi_cid_start];
 
 		beiscsi_ep = ep->dd_data;
 		beiscsi_conn = beiscsi_ep->conn;
@@ -1829,32 +1951,41 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 			num_processed = 0;
 		}
 
-		switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) /
-			32] & CQE_CODE_MASK) {
+		switch (code) {
 		case SOL_CMD_COMPLETE:
 			hwi_complete_cmd(beiscsi_conn, phba, sol);
 			break;
 		case DRIVERMSG_NOTIFY:
-			SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY\n");
+			beiscsi_log(phba, KERN_INFO,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : Received DRIVERMSG_NOTIFY\n");
+
 			dmsg = (struct dmsg_cqe *)sol;
 			hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
 			break;
 		case UNSOL_HDR_NOTIFY:
-			SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR_ NOTIFY\n");
+			beiscsi_log(phba, KERN_INFO,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : Received UNSOL_HDR_ NOTIFY\n");
+
 			hwi_process_default_pdu_ring(beiscsi_conn, phba,
 					     (struct i_t_dpdu_cqe *)sol);
 			break;
 		case UNSOL_DATA_NOTIFY:
-			SE_DEBUG(DBG_LVL_8, "Received UNSOL_DATA_NOTIFY\n");
+			beiscsi_log(phba, KERN_INFO,
+				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+				    "BM_%d : Received UNSOL_DATA_NOTIFY\n");
+
 			hwi_process_default_pdu_ring(beiscsi_conn, phba,
 					     (struct i_t_dpdu_cqe *)sol);
 			break;
 		case CXN_INVALIDATE_INDEX_NOTIFY:
 		case CMD_INVALIDATED_NOTIFY:
 		case CXN_INVALIDATE_NOTIFY:
-			SE_DEBUG(DBG_LVL_1,
-				 "Ignoring CQ Error notification for cmd/cxn"
-				 "invalidate\n");
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : Ignoring CQ Error notification for"
+				    " cmd/cxn invalidate\n");
 			break;
 		case SOL_CMD_KILLED_DATA_DIGEST_ERR:
 		case CMD_KILLED_INVALID_STATSN_RCVD:
@@ -1864,17 +1995,16 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 		case CMD_CXN_KILLED_ITT_INVALID:
 		case CMD_CXN_KILLED_SEQ_OUTOFORDER:
 		case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
-			SE_DEBUG(DBG_LVL_1,
-				 "CQ Error notification for cmd.. "
-				 "code %d cid 0x%x\n",
-				 sol->dw[offsetof(struct amap_sol_cqe, code) /
-				 32] & CQE_CODE_MASK,
-				 (sol->dw[offsetof(struct amap_sol_cqe, cid) /
-				 32] & SOL_CID_MASK));
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+				    "BM_%d : CQ Error notification for cmd.. "
+				    "code %d cid 0x%x\n", code, cid);
 			break;
 		case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
-			SE_DEBUG(DBG_LVL_1,
-				 "Digest error on def pdu ring, dropping..\n");
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : Digest error on def pdu ring,"
+				    " dropping..\n");
 			hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
 					     (struct i_t_dpdu_cqe *) sol);
 			break;
@@ -1892,33 +2022,31 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 		case CXN_KILLED_OVER_RUN_RESIDUAL:
 		case CXN_KILLED_UNDER_RUN_RESIDUAL:
 		case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
-			SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID "
-				 "0x%x...\n",
-				 sol->dw[offsetof(struct amap_sol_cqe, code) /
-				 32] & CQE_CODE_MASK,
-				 (sol->dw[offsetof(struct amap_sol_cqe, cid) /
-				 32] & CQE_CID_MASK));
-			iscsi_conn_failure(beiscsi_conn->conn,
-					   ISCSI_ERR_CONN_FAILED);
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : CQ Error %d, reset CID 0x%x...\n",
+				    code, cid);
+			if (beiscsi_conn)
+				iscsi_conn_failure(beiscsi_conn->conn,
+						   ISCSI_ERR_CONN_FAILED);
 			break;
 		case CXN_KILLED_RST_SENT:
 		case CXN_KILLED_RST_RCVD:
-			SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset"
-				"received/sent on CID 0x%x...\n",
-				 sol->dw[offsetof(struct amap_sol_cqe, code) /
-				 32] & CQE_CODE_MASK,
-				 (sol->dw[offsetof(struct amap_sol_cqe, cid) /
-				 32] & CQE_CID_MASK));
-			iscsi_conn_failure(beiscsi_conn->conn,
-					   ISCSI_ERR_CONN_FAILED);
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : CQ Error %d, reset"
+				    "received/sent on CID 0x%x...\n",
+				    code, cid);
+			if (beiscsi_conn)
+				iscsi_conn_failure(beiscsi_conn->conn,
+						   ISCSI_ERR_CONN_FAILED);
 			break;
 		default:
-			SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d "
-				 "received on CID 0x%x...\n",
-				 sol->dw[offsetof(struct amap_sol_cqe, code) /
-				 32] & CQE_CODE_MASK,
-				 (sol->dw[offsetof(struct amap_sol_cqe, cid) /
-				 32] & CQE_CID_MASK));
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+				    "BM_%d : CQ Error Invalid code= %d "
+				    "received on CID 0x%x...\n",
+				    code, cid);
 			break;
 		}
 
@@ -1977,7 +2105,10 @@ static int be_iopoll(struct blk_iopoll *iop, int budget)
 	if (ret < budget) {
 		phba = pbe_eq->phba;
 		blk_iopoll_complete(iop);
-		SE_DEBUG(DBG_LVL_8, "rearm pbe_eq->q.id =%d\n", pbe_eq->q.id);
+		beiscsi_log(phba, KERN_INFO,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
+			    "BM_%d : rearm pbe_eq->q.id =%d\n",
+			    pbe_eq->q.id);
 		hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
 	}
 	return ret;
@@ -2348,16 +2479,16 @@ static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
 				kzalloc(sizeof(struct wrb_handle *) *
 					phba->params.wrbs_per_cxn, GFP_KERNEL);
 		if (!pwrb_context->pwrb_handle_base) {
-			shost_printk(KERN_ERR, phba->shost,
-					"Mem Alloc Failed. Failing to load\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : Mem Alloc Failed. Failing to load\n");
 			goto init_wrb_hndl_failed;
 		}
 		pwrb_context->pwrb_handle_basestd =
 				kzalloc(sizeof(struct wrb_handle *) *
 					phba->params.wrbs_per_cxn, GFP_KERNEL);
 		if (!pwrb_context->pwrb_handle_basestd) {
-			shost_printk(KERN_ERR, phba->shost,
-					"Mem Alloc Failed. Failing to load\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : Mem Alloc Failed. Failing to load\n");
 			goto init_wrb_hndl_failed;
 		}
 		if (!num_cxn_wrbh) {
@@ -2438,12 +2569,13 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
 	mem_descr += HWI_MEM_ASYNC_HEADER_BUF;
 	if (mem_descr->mem_array[0].virtual_address) {
-		SE_DEBUG(DBG_LVL_8,
-			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF"
-			 "va=%p\n", mem_descr->mem_array[0].virtual_address);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : hwi_init_async_pdu_ctx"
+			    " HWI_MEM_ASYNC_HEADER_BUF va=%p\n",
+			    mem_descr->mem_array[0].virtual_address);
 	} else
-		shost_printk(KERN_WARNING, phba->shost,
-			     "No Virtual address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : No Virtual address\n");
 
 	pasync_ctx->async_header.va_base =
 			mem_descr->mem_array[0].virtual_address;
@@ -2454,24 +2586,27 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
 	mem_descr += HWI_MEM_ASYNC_HEADER_RING;
 	if (mem_descr->mem_array[0].virtual_address) {
-		SE_DEBUG(DBG_LVL_8,
-			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING"
-			 "va=%p\n", mem_descr->mem_array[0].virtual_address);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : hwi_init_async_pdu_ctx"
+			    " HWI_MEM_ASYNC_HEADER_RING va=%p\n",
+			    mem_descr->mem_array[0].virtual_address);
 	} else
-		shost_printk(KERN_WARNING, phba->shost,
-			    "No Virtual address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : No Virtual address\n");
+
 	pasync_ctx->async_header.ring_base =
 			mem_descr->mem_array[0].virtual_address;
 
 	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
 	mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE;
 	if (mem_descr->mem_array[0].virtual_address) {
-		SE_DEBUG(DBG_LVL_8,
-			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE"
-			 "va=%p\n", mem_descr->mem_array[0].virtual_address);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : hwi_init_async_pdu_ctx"
+			    " HWI_MEM_ASYNC_HEADER_HANDLE va=%p\n",
+			    mem_descr->mem_array[0].virtual_address);
 	} else
-		shost_printk(KERN_WARNING, phba->shost,
-			    "No Virtual address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : No Virtual address\n");
 
 	pasync_ctx->async_header.handle_base =
 			mem_descr->mem_array[0].virtual_address;
@@ -2482,12 +2617,13 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
 	mem_descr += HWI_MEM_ASYNC_DATA_RING;
 	if (mem_descr->mem_array[0].virtual_address) {
-		SE_DEBUG(DBG_LVL_8,
-			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING"
-			 "va=%p\n", mem_descr->mem_array[0].virtual_address);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : hwi_init_async_pdu_ctx"
+			    " HWI_MEM_ASYNC_DATA_RING va=%p\n",
+			    mem_descr->mem_array[0].virtual_address);
 	} else
-		shost_printk(KERN_WARNING, phba->shost,
-			     "No Virtual address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : No Virtual address\n");
 
 	pasync_ctx->async_data.ring_base =
 			mem_descr->mem_array[0].virtual_address;
@@ -2495,8 +2631,8 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
 	mem_descr += HWI_MEM_ASYNC_DATA_HANDLE;
 	if (!mem_descr->mem_array[0].virtual_address)
-		shost_printk(KERN_WARNING, phba->shost,
-			    "No Virtual address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : No Virtual address\n");
 
 	pasync_ctx->async_data.handle_base =
 			mem_descr->mem_array[0].virtual_address;
@@ -2511,12 +2647,14 @@ static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
 	mem_descr += HWI_MEM_ASYNC_DATA_BUF;
 	if (mem_descr->mem_array[0].virtual_address) {
-		SE_DEBUG(DBG_LVL_8,
-			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF"
-			 "va=%p\n", mem_descr->mem_array[0].virtual_address);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : hwi_init_async_pdu_ctx"
+			    " HWI_MEM_ASYNC_DATA_BUF va=%p\n",
+			    mem_descr->mem_array[0].virtual_address);
 	} else
-		shost_printk(KERN_WARNING, phba->shost,
-			    "No Virtual address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : No Virtual address\n");
+
 	idx = 0;
 	pasync_ctx->async_data.va_base =
 			mem_descr->mem_array[idx].virtual_address;
@@ -2657,7 +2795,7 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
 			     struct hwi_context_memory *phwi_context)
 {
 	unsigned int i, num_eq_pages;
-	int ret, eq_for_mcc;
+	int ret = 0, eq_for_mcc;
 	struct be_queue_info *eq;
 	struct be_dma_mem *mem;
 	void *eq_vaddress;
@@ -2684,8 +2822,8 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
 		ret = be_fill_queue(eq, phba->params.num_eq_entries,
 				    sizeof(struct be_eq_entry), eq_vaddress);
 		if (ret) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "be_fill_queue Failed for EQ\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : be_fill_queue Failed for EQ\n");
 			goto create_eq_error;
 		}
 
@@ -2693,12 +2831,15 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
 		ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
 					    phwi_context->cur_eqd);
 		if (ret) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "beiscsi_cmd_eq_create"
-				     "Failedfor EQ\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : beiscsi_cmd_eq_create"
+				    "Failed for EQ\n");
 			goto create_eq_error;
 		}
-		SE_DEBUG(DBG_LVL_8, "eqid = %d\n", phwi_context->be_eq[i].q.id);
+
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : eqid = %d\n",
+			    phwi_context->be_eq[i].q.id);
 	}
 	return 0;
 create_eq_error:
@@ -2717,7 +2858,7 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
 			     struct hwi_context_memory *phwi_context)
 {
 	unsigned int i, num_cq_pages;
-	int ret;
+	int ret = 0;
 	struct be_queue_info *cq, *eq;
 	struct be_dma_mem *mem;
 	struct be_eq_obj *pbe_eq;
@@ -2742,8 +2883,9 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
 		ret = be_fill_queue(cq, phba->params.num_cq_entries,
 				    sizeof(struct sol_cqe), cq_vaddress);
 		if (ret) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "be_fill_queue Failed for ISCSI CQ\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : be_fill_queue Failed "
+				    "for ISCSI CQ\n");
 			goto create_cq_error;
 		}
 
@@ -2751,14 +2893,14 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
 		ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
 					    false, 0);
 		if (ret) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "beiscsi_cmd_eq_create"
-				     "Failed for ISCSI CQ\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : beiscsi_cmd_eq_create"
+				    "Failed for ISCSI CQ\n");
 			goto create_cq_error;
 		}
-		SE_DEBUG(DBG_LVL_8, "iscsi cq_id is %d for eq_id %d\n",
-						 cq->id, eq->id);
-		SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n");
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : iscsi cq_id is %d for eq_id %d\n"
+			    "iSCSI CQ CREATED\n", cq->id, eq->id);
 	}
 	return 0;
 
@@ -2799,8 +2941,8 @@ beiscsi_create_def_hdr(struct beiscsi_hba *phba,
 			    sizeof(struct phys_addr),
 			    sizeof(struct phys_addr), dq_vaddress);
 	if (ret) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "be_fill_queue Failed for DEF PDU HDR\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : be_fill_queue Failed for DEF PDU HDR\n");
 		return ret;
 	}
 	mem->dma = (unsigned long)mem_descr->mem_array[idx].
@@ -2809,13 +2951,15 @@ beiscsi_create_def_hdr(struct beiscsi_hba *phba,
 					      def_pdu_ring_sz,
 					      phba->params.defpdu_hdr_sz);
 	if (ret) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "be_cmd_create_default_pdu_queue Failed DEFHDR\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR\n");
 		return ret;
 	}
 	phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id;
-	SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n",
-		 phwi_context->be_def_hdrq.id);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : iscsi def pdu id is %d\n",
+		    phwi_context->be_def_hdrq.id);
+
 	hwi_post_async_buffers(phba, 1);
 	return 0;
 }
@@ -2844,8 +2988,8 @@ beiscsi_create_def_data(struct beiscsi_hba *phba,
 			    sizeof(struct phys_addr),
 			    sizeof(struct phys_addr), dq_vaddress);
 	if (ret) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "be_fill_queue Failed for DEF PDU DATA\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : be_fill_queue Failed for DEF PDU DATA\n");
 		return ret;
 	}
 	mem->dma = (unsigned long)mem_descr->mem_array[idx].
@@ -2854,16 +2998,20 @@ beiscsi_create_def_data(struct beiscsi_hba *phba,
 					      def_pdu_ring_sz,
 					      phba->params.defpdu_data_sz);
 	if (ret) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "be_cmd_create_default_pdu_queue Failed"
-			     " for DEF PDU DATA\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d be_cmd_create_default_pdu_queue"
+			    " Failed for DEF PDU DATA\n");
 		return ret;
 	}
 	phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id;
-	SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n",
-		 phwi_context->be_def_dataq.id);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : iscsi def data id is %d\n",
+		    phwi_context->be_def_dataq.id);
+
 	hwi_post_async_buffers(phba, 0);
-	SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED\n");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : DEFAULT PDU DATA RING CREATED\n");
+
 	return 0;
 }
 
@@ -2889,13 +3037,14 @@ beiscsi_post_pages(struct beiscsi_hba *phba)
 						(pm_arr->size / PAGE_SIZE));
 		page_offset += pm_arr->size / PAGE_SIZE;
 		if (status != 0) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "post sgl failed.\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : post sgl failed.\n");
 			return status;
 		}
 		pm_arr++;
 	}
-	SE_DEBUG(DBG_LVL_8, "POSTED PAGES\n");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : POSTED PAGES\n");
 	return 0;
 }
 
@@ -2945,8 +3094,8 @@ beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
 	pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl,
 			   GFP_KERNEL);
 	if (!pwrb_arr) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Memory alloc failed in create wrb ring.\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Memory alloc failed in create wrb ring.\n");
 		return -ENOMEM;
 	}
 	wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
@@ -2990,8 +3139,8 @@ beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
 		status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
 					    &phwi_context->be_wrbq[i]);
 		if (status != 0) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "wrbq create failed.");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : wrbq create failed.");
 			kfree(pwrb_arr);
 			return status;
 		}
@@ -3127,7 +3276,6 @@ static int find_num_cpus(void)
 	if (num_cpus >= MAX_CPUS)
 		num_cpus = MAX_CPUS - 1;
 
-	SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", num_cpus);
 	return num_cpus;
 }
 
@@ -3150,7 +3298,8 @@ static int hwi_init_port(struct beiscsi_hba *phba)
 
 	status = beiscsi_create_eqs(phba, phwi_context);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost, "EQ not created\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : EQ not created\n");
 		goto error;
 	}
 
@@ -3160,51 +3309,55 @@ static int hwi_init_port(struct beiscsi_hba *phba)
 
 	status = mgmt_check_supported_fw(ctrl, phba);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Unsupported fw version\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Unsupported fw version\n");
 		goto error;
 	}
 
 	status = beiscsi_create_cqs(phba, phwi_context);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost, "CQ not created\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : CQ not created\n");
 		goto error;
 	}
 
 	status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr,
 					def_pdu_ring_sz);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Default Header not created\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Default Header not created\n");
 		goto error;
 	}
 
 	status = beiscsi_create_def_data(phba, phwi_context,
 					 phwi_ctrlr, def_pdu_ring_sz);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Default Data not created\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Default Data not created\n");
 		goto error;
 	}
 
 	status = beiscsi_post_pages(phba);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Post SGL Pages Failed\n");
 		goto error;
 	}
 
 	status = beiscsi_create_wrb_rings(phba,	phwi_context, phwi_ctrlr);
 	if (status != 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "WRB Rings not created\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : WRB Rings not created\n");
 		goto error;
 	}
 
-	SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : hwi_init_port success\n");
 	return 0;
 
 error:
-	shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed");
+	beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+		    "BM_%d : hwi_init_port failed");
 	hwi_cleanup(phba);
 	return status;
 }
@@ -3217,12 +3370,13 @@ static int hwi_init_controller(struct beiscsi_hba *phba)
 	if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
 		phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
 		    init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
-		SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p\n",
-			 phwi_ctrlr->phwi_ctxt);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d :  phwi_ctrlr->phwi_ctxt=%p\n",
+			    phwi_ctrlr->phwi_ctxt);
 	} else {
-		shost_printk(KERN_ERR, phba->shost,
-			     "HWI_MEM_ADDN_CONTEXT is more than one element."
-			     "Failing to load\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : HWI_MEM_ADDN_CONTEXT is more "
+			    "than one element.Failing to load\n");
 		return -ENOMEM;
 	}
 
@@ -3232,8 +3386,9 @@ static int hwi_init_controller(struct beiscsi_hba *phba)
 
 	hwi_init_async_pdu_ctx(phba);
 	if (hwi_init_port(phba) != 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "hwi_init_controller failed\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : hwi_init_controller failed\n");
+
 		return -ENOMEM;
 	}
 	return 0;
@@ -3268,15 +3423,18 @@ static int beiscsi_init_controller(struct beiscsi_hba *phba)
 
 	ret = beiscsi_get_memory(phba);
 	if (ret < 0) {
-		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -"
-			     "Failed in beiscsi_alloc_memory\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe -"
+			    "Failed in beiscsi_alloc_memory\n");
 		return ret;
 	}
 
 	ret = hwi_init_controller(phba);
 	if (ret)
 		goto free_init;
-	SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : Return success from beiscsi_init_controller");
+
 	return 0;
 
 free_init:
@@ -3301,8 +3459,8 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 						 phba->params.ios_per_ctrl,
 						 GFP_KERNEL);
 		if (!phba->io_sgl_hndl_base) {
-			shost_printk(KERN_ERR, phba->shost,
-				     "Mem Alloc Failed. Failing to load\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : Mem Alloc Failed. Failing to load\n");
 			return -ENOMEM;
 		}
 		phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
@@ -3311,14 +3469,14 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 						 GFP_KERNEL);
 		if (!phba->eh_sgl_hndl_base) {
 			kfree(phba->io_sgl_hndl_base);
-			shost_printk(KERN_ERR, phba->shost,
-				     "Mem Alloc Failed. Failing to load\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : Mem Alloc Failed. Failing to load\n");
 			return -ENOMEM;
 		}
 	} else {
-		shost_printk(KERN_ERR, phba->shost,
-			     "HWI_MEM_SGLH is more than one element."
-			     "Failing to load\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : HWI_MEM_SGLH is more than one element."
+			    "Failing to load\n");
 		return -ENOMEM;
 	}
 
@@ -3344,15 +3502,18 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 		}
 		idx++;
 	}
-	SE_DEBUG(DBG_LVL_8,
-		 "phba->io_sgl_hndl_avbl=%d"
-		 "phba->eh_sgl_hndl_avbl=%d\n",
-		 phba->io_sgl_hndl_avbl,
-		 phba->eh_sgl_hndl_avbl);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : phba->io_sgl_hndl_avbl=%d"
+		    "phba->eh_sgl_hndl_avbl=%d\n",
+		    phba->io_sgl_hndl_avbl,
+		    phba->eh_sgl_hndl_avbl);
+
 	mem_descr_sg = phba->init_mem;
 	mem_descr_sg += HWI_MEM_SGE;
-	SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d\n",
-		 mem_descr_sg->num_elements);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "\n BM_%d : mem_descr_sg->num_elements=%d\n",
+		    mem_descr_sg->num_elements);
+
 	arr_index = 0;
 	idx = 0;
 	while (idx < mem_descr_sg->num_elements) {
@@ -3390,17 +3551,17 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
 	phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
 				  GFP_KERNEL);
 	if (!phba->cid_array) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Failed to allocate memory in "
-			     "hba_setup_cid_tbls\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Failed to allocate memory in "
+			    "hba_setup_cid_tbls\n");
 		return -ENOMEM;
 	}
 	phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) *
 				 phba->params.cxns_per_ctrl * 2, GFP_KERNEL);
 	if (!phba->ep_array) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Failed to allocate memory in "
-			     "hba_setup_cid_tbls\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Failed to allocate memory in "
+			    "hba_setup_cid_tbls\n");
 		kfree(phba->cid_array);
 		return -ENOMEM;
 	}
@@ -3433,18 +3594,22 @@ static void hwi_enable_intr(struct beiscsi_hba *phba)
 	enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 	if (!enabled) {
 		reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
-		SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p\n", reg, addr);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : reg =x%08x addr=%p\n", reg, addr);
 		iowrite32(reg, addr);
 	}
 
 	if (!phba->msix_enabled) {
 		eq = &phwi_context->be_eq[0].q;
-		SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : eq->id=%d\n", eq->id);
+
 		hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
 	} else {
 		for (i = 0; i <= phba->num_cpus; i++) {
 			eq = &phwi_context->be_eq[i].q;
-			SE_DEBUG(DBG_LVL_8, "eq->id=%d\n", eq->id);
+			beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+				    "BM_%d : eq->id=%d\n", eq->id);
 			hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
 		}
 	}
@@ -3462,64 +3627,60 @@ static void hwi_disable_intr(struct beiscsi_hba *phba)
 		reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 		iowrite32(reg, addr);
 	} else
-		shost_printk(KERN_WARNING, phba->shost,
-			     "In hwi_disable_intr, Already Disabled\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : In hwi_disable_intr, Already Disabled\n");
 }
 
+/**
+ * beiscsi_get_boot_info()- Get the boot session info
+ * @phba: The device priv structure instance
+ *
+ * Get the boot target info and store in driver priv structure
+ *
+ * return values
+ *	Success: 0
+ *	Failure: Non-Zero Value
+ **/
 static int beiscsi_get_boot_info(struct beiscsi_hba *phba)
 {
-	struct be_cmd_get_boot_target_resp *boot_resp;
 	struct be_cmd_get_session_resp *session_resp;
 	struct be_mcc_wrb *wrb;
 	struct be_dma_mem nonemb_cmd;
 	unsigned int tag, wrb_num;
 	unsigned short status, extd_status;
+	unsigned int s_handle;
 	struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
 	int ret = -ENOMEM;
 
-	tag = mgmt_get_boot_target(phba);
-	if (!tag) {
-		SE_DEBUG(DBG_LVL_1, "beiscsi_get_boot_info Failed\n");
-		return -EAGAIN;
-	} else
-		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
-					 phba->ctrl.mcc_numtag[tag]);
-
-	wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
-	extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
-	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
-	if (status || extd_status) {
-		SE_DEBUG(DBG_LVL_1, "beiscsi_get_boot_info Failed"
-				    " status = %d extd_status = %d\n",
-				    status, extd_status);
-		free_mcc_tag(&phba->ctrl, tag);
-		return -EBUSY;
-	}
-	wrb = queue_get_wrb(mccq, wrb_num);
-	free_mcc_tag(&phba->ctrl, tag);
-	boot_resp = embedded_payload(wrb);
-
-	if (boot_resp->boot_session_handle < 0) {
-		shost_printk(KERN_INFO, phba->shost, "No Boot Session.\n");
-		return -ENXIO;
+	/* Get the session handle of the boot target */
+	ret = be_mgmt_get_boot_shandle(phba, &s_handle);
+	if (ret) {
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+			    "BM_%d : No boot session\n");
+		return ret;
 	}
-
 	nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
 				sizeof(*session_resp),
 				&nonemb_cmd.dma);
 	if (nonemb_cmd.va == NULL) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Failed to allocate memory for"
-			 "beiscsi_get_session_info\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+			    "BM_%d : Failed to allocate memory for"
+			    "beiscsi_get_session_info\n");
+
 		return -ENOMEM;
 	}
 
 	memset(nonemb_cmd.va, 0, sizeof(*session_resp));
-	tag = mgmt_get_session_info(phba, boot_resp->boot_session_handle,
+	tag = mgmt_get_session_info(phba, s_handle,
 				    &nonemb_cmd);
 	if (!tag) {
-		SE_DEBUG(DBG_LVL_1, "beiscsi_get_session_info"
-			" Failed\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+			    "BM_%d : beiscsi_get_session_info"
+			    " Failed\n");
+
 		goto boot_freemem;
 	} else
 		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
@@ -3529,9 +3690,12 @@ static int beiscsi_get_boot_info(struct beiscsi_hba *phba)
 	extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
 	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
 	if (status || extd_status) {
-		SE_DEBUG(DBG_LVL_1, "beiscsi_get_session_info Failed"
-				    " status = %d extd_status = %d\n",
-				    status, extd_status);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+			    "BM_%d : beiscsi_get_session_info Failed"
+			    " status = %d extd_status = %d\n",
+			    status, extd_status);
+
 		free_mcc_tag(&phba->ctrl, tag);
 		goto boot_freemem;
 	}
@@ -3611,22 +3775,22 @@ static int beiscsi_init_port(struct beiscsi_hba *phba)
 
 	ret = beiscsi_init_controller(phba);
 	if (ret < 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "beiscsi_dev_probe - Failed in"
-			     "beiscsi_init_controller\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe - Failed in"
+			    "beiscsi_init_controller\n");
 		return ret;
 	}
 	ret = beiscsi_init_sgl_handle(phba);
 	if (ret < 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "beiscsi_dev_probe - Failed in"
-			     "beiscsi_init_sgl_handle\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe - Failed in"
+			    "beiscsi_init_sgl_handle\n");
 		goto do_cleanup_ctrlr;
 	}
 
 	if (hba_setup_cid_tbls(phba)) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Failed in hba_setup_cid_tbls\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Failed in hba_setup_cid_tbls\n");
 		kfree(phba->io_sgl_hndl_base);
 		kfree(phba->eh_sgl_hndl_base);
 		goto do_cleanup_ctrlr;
@@ -3678,8 +3842,8 @@ static void beiscsi_clean_port(struct beiscsi_hba *phba)
 
 	mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0);
 	if (mgmt_status)
-		shost_printk(KERN_WARNING, phba->shost,
-			     "mgmt_epfw_cleanup FAILED\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : mgmt_epfw_cleanup FAILED\n");
 
 	hwi_purge_eq(phba);
 	hwi_cleanup(phba);
@@ -3960,7 +4124,9 @@ free_hndls:
 	pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
 		      io_task->bhs_pa.u.a64.address);
 	io_task->cmd_bhs = NULL;
-	SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed\n");
+	beiscsi_log(phba, KERN_ERR,
+		    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
+		    "BM_%d : Alloc of SGL_ICD Failed\n");
 	return -ENOMEM;
 }
 
@@ -3981,15 +4147,6 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
 	io_task->bhs_len = sizeof(struct be_cmd_bhs);
 
 	if (writedir) {
-		memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48);
-		AMAP_SET_BITS(struct amap_pdu_data_out, itt,
-			      &io_task->cmd_bhs->iscsi_data_pdu,
-			      (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt);
-		AMAP_SET_BITS(struct amap_pdu_data_out, opcode,
-			      &io_task->cmd_bhs->iscsi_data_pdu,
-			      ISCSI_OPCODE_SCSI_DATA_OUT);
-		AMAP_SET_BITS(struct amap_pdu_data_out, final_bit,
-			      &io_task->cmd_bhs->iscsi_data_pdu, 1);
 		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
 			      INI_WR_CMD);
 		AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
@@ -3998,9 +4155,6 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
 			      INI_RD_CMD);
 		AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
 	}
-	memcpy(&io_task->cmd_bhs->iscsi_data_pdu.
-	       dw[offsetof(struct amap_pdu_data_out, lun) / 32],
-	       &io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun));
 
 	AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
 		      cpu_to_be16(*(unsigned short *)
@@ -4090,8 +4244,10 @@ static int beiscsi_mtask(struct iscsi_task *task)
 		break;
 
 	default:
-		SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported\n",
-			 task->hdr->opcode & ISCSI_OPCODE_MASK);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BM_%d : opcode =%d Not supported\n",
+			    task->hdr->opcode & ISCSI_OPCODE_MASK);
+
 		return -EINVAL;
 	}
 
@@ -4123,17 +4279,22 @@ static int beiscsi_task_xmit(struct iscsi_task *task)
 	io_task->scsi_cmnd = sc;
 	num_sg = scsi_dma_map(sc);
 	if (num_sg < 0) {
-		SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n")
+		struct iscsi_conn *conn = task->conn;
+		struct beiscsi_hba *phba = NULL;
+
+		phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_IO,
+			    "BM_%d : scsi_dma_map Failed\n");
+
 		return num_sg;
 	}
 	xferlen = scsi_bufflen(sc);
 	sg = scsi_sglist(sc);
-	if (sc->sc_data_direction == DMA_TO_DEVICE) {
+	if (sc->sc_data_direction == DMA_TO_DEVICE)
 		writedir = 1;
-		SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x\n",
-			 task->imm_count);
-	} else
+	 else
 		writedir = 0;
+
 	return beiscsi_iotask(task, sg, num_sg, xferlen, writedir);
 }
 
@@ -4162,14 +4323,17 @@ static int beiscsi_bsg_request(struct bsg_job *job)
 					job->request_payload.payload_len,
 					&nonemb_cmd.dma);
 		if (nonemb_cmd.va == NULL) {
-			SE_DEBUG(DBG_LVL_1, "Failed to allocate memory for "
-				 "beiscsi_bsg_request\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BM_%d : Failed to allocate memory for "
+				    "beiscsi_bsg_request\n");
 			return -EIO;
 		}
 		tag = mgmt_vendor_specific_fw_cmd(&phba->ctrl, phba, job,
 						  &nonemb_cmd);
 		if (!tag) {
-			SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BM_%d : be_cmd_get_mac_addr Failed\n");
+
 			pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 					    nonemb_cmd.va, nonemb_cmd.dma);
 			return -EAGAIN;
@@ -4191,22 +4355,31 @@ static int beiscsi_bsg_request(struct bsg_job *job)
 		pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
 				    nonemb_cmd.va, nonemb_cmd.dma);
 		if (status || extd_status) {
-			SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed"
-				 " status = %d extd_status = %d\n",
-				 status, extd_status);
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				    "BM_%d : be_cmd_get_mac_addr Failed"
+				    " status = %d extd_status = %d\n",
+				    status, extd_status);
+
 			return -EIO;
 		}
 		break;
 
 	default:
-		SE_DEBUG(DBG_LVL_1, "Unsupported bsg command: 0x%x\n",
-			 bsg_req->msgcode);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+				"BM_%d : Unsupported bsg command: 0x%x\n",
+				bsg_req->msgcode);
 		break;
 	}
 
 	return rc;
 }
 
+void beiscsi_hba_attrs_init(struct beiscsi_hba *phba)
+{
+	/* Set the logging parameter */
+	beiscsi_log_enable_init(phba, beiscsi_log_enable);
+}
+
 static void beiscsi_quiesce(struct beiscsi_hba *phba)
 {
 	struct hwi_controller *phwi_ctrlr;
@@ -4316,18 +4489,21 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 
 	ret = beiscsi_enable_pci(pcidev);
 	if (ret < 0) {
-		dev_err(&pcidev->dev, "beiscsi_dev_probe-"
-			" Failed to enable pci device\n");
+		dev_err(&pcidev->dev,
+			"beiscsi_dev_probe - Failed to enable pci device\n");
 		return ret;
 	}
 
 	phba = beiscsi_hba_alloc(pcidev);
 	if (!phba) {
-		dev_err(&pcidev->dev, "beiscsi_dev_probe-"
-			" Failed in beiscsi_hba_alloc\n");
+		dev_err(&pcidev->dev,
+			"beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n");
 		goto disable_pci;
 	}
 
+	/* Initialize Driver configuration Paramters */
+	beiscsi_hba_attrs_init(phba);
+
 	switch (pcidev->device) {
 	case BE_DEVICE_ID1:
 	case OC_DEVICE_ID1:
@@ -4347,7 +4523,9 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 	else
 		num_cpus = 1;
 	phba->num_cpus = num_cpus;
-	SE_DEBUG(DBG_LVL_8, "num_cpus = %d\n", phba->num_cpus);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : num_cpus = %d\n",
+		    phba->num_cpus);
 
 	if (enable_msix) {
 		beiscsi_msix_enable(phba);
@@ -4356,8 +4534,9 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 	}
 	ret = be_ctrl_init(phba, pcidev);
 	if (ret) {
-		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
-				"Failed in be_ctrl_init\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe-"
+			    "Failed in be_ctrl_init\n");
 		goto hba_free;
 	}
 
@@ -4366,19 +4545,19 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 		value = readl((void *)real_offset);
 		if (value & 0x00010000) {
 			gcrashmode++;
-			shost_printk(KERN_ERR, phba->shost,
-				"Loading Driver in crashdump mode\n");
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : Loading Driver in crashdump mode\n");
 			ret = beiscsi_cmd_reset_function(phba);
 			if (ret) {
-				shost_printk(KERN_ERR, phba->shost,
-					"Reset Failed. Aborting Crashdump\n");
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Reset Failed. Aborting Crashdump\n");
 				goto hba_free;
 			}
 			ret = be_chk_reset_complete(phba);
 			if (ret) {
-				shost_printk(KERN_ERR, phba->shost,
-					"Failed to get out of reset."
-					"Aborting Crashdump\n");
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Failed to get out of reset."
+					    "Aborting Crashdump\n");
 				goto hba_free;
 			}
 		} else {
@@ -4393,8 +4572,8 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 	spin_lock_init(&phba->isr_lock);
 	ret = mgmt_get_fw_config(&phba->ctrl, phba);
 	if (ret != 0) {
-		shost_printk(KERN_ERR, phba->shost,
-			     "Error getting fw config\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Error getting fw config\n");
 		goto free_port;
 	}
 	phba->shost->max_id = phba->fw_config.iscsi_cid_count;
@@ -4402,8 +4581,9 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 	phba->shost->can_queue = phba->params.ios_per_ctrl;
 	ret = beiscsi_init_port(phba);
 	if (ret < 0) {
-		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
-			     "Failed in beiscsi_init_port\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe-"
+			    "Failed in beiscsi_init_port\n");
 		goto free_port;
 	}
 
@@ -4420,8 +4600,9 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 		 phba->shost->host_no);
 	phba->wq = alloc_workqueue(phba->wq_name, WQ_MEM_RECLAIM, 1);
 	if (!phba->wq) {
-		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
-				"Failed to allocate work queue\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe-"
+			    "Failed to allocate work queue\n");
 		goto free_twq;
 	}
 
@@ -4439,8 +4620,9 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 	}
 	ret = beiscsi_init_irqs(phba);
 	if (ret < 0) {
-		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
-			     "Failed to beiscsi_init_irqs\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_dev_probe-"
+			    "Failed to beiscsi_init_irqs\n");
 		goto free_blkenbld;
 	}
 	hwi_enable_intr(phba);
@@ -4450,11 +4632,13 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
 		 * log error but continue, because we may not be using
 		 * iscsi boot.
 		 */
-		shost_printk(KERN_ERR, phba->shost, "Could not set up "
-			     "iSCSI boot info.\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Could not set up "
+			    "iSCSI boot info.\n");
 
 	beiscsi_create_def_ifaces(phba);
-	SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED\n\n\n");
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n");
 	return 0;
 
 free_blkenbld:
@@ -4542,19 +4726,17 @@ static int __init beiscsi_module_init(void)
 	beiscsi_scsi_transport =
 			iscsi_register_transport(&beiscsi_iscsi_transport);
 	if (!beiscsi_scsi_transport) {
-		SE_DEBUG(DBG_LVL_1,
-			 "beiscsi_module_init - Unable to  register beiscsi"
-			 "transport.\n");
+		printk(KERN_ERR
+		       "beiscsi_module_init - Unable to  register beiscsi transport.\n");
 		return -ENOMEM;
 	}
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p\n",
-		 &beiscsi_iscsi_transport);
+	printk(KERN_INFO "In beiscsi_module_init, tt=%p\n",
+	       &beiscsi_iscsi_transport);
 
 	ret = pci_register_driver(&beiscsi_pci_driver);
 	if (ret) {
-		SE_DEBUG(DBG_LVL_1,
-			 "beiscsi_module_init - Unable to  register"
-			 "beiscsi pci driver.\n");
+		printk(KERN_ERR
+		       "beiscsi_module_init - Unable to  register beiscsi pci driver.\n");
 		goto unregister_iscsi_transport;
 	}
 	return 0;
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 40fea6ec879..b8912263ef4 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -24,6 +24,8 @@
 #include <linux/pci.h>
 #include <linux/if_ether.h>
 #include <linux/in.h>
+#include <linux/ctype.h>
+#include <linux/module.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
@@ -34,7 +36,7 @@
 
 #include "be.h"
 #define DRV_NAME		"be2iscsi"
-#define BUILD_STR		"4.2.162.0"
+#define BUILD_STR		"4.4.58.0"
 #define BE_NAME			"Emulex OneConnect" \
 				"Open-iSCSI Driver version" BUILD_STR
 #define DRV_DESC		BE_NAME " " "Driver"
@@ -84,23 +86,7 @@
 #define MAX_CMD_SZ			65536
 #define IIOC_SCSI_DATA                  0x05	/* Write Operation */
 
-#define DBG_LVL				0x00000001
-#define DBG_LVL_1			0x00000001
-#define DBG_LVL_2			0x00000002
-#define DBG_LVL_3			0x00000004
-#define DBG_LVL_4			0x00000008
-#define DBG_LVL_5			0x00000010
-#define DBG_LVL_6			0x00000020
-#define DBG_LVL_7			0x00000040
-#define DBG_LVL_8			0x00000080
-
-#define SE_DEBUG(debug_mask, fmt, args...)		\
-do {							\
-	if (debug_mask & DBG_LVL) {			\
-		printk(KERN_ERR "(%s():%d):", __func__, __LINE__);\
-		printk(fmt, ##args);			\
-	}						\
-} while (0);
+#define INVALID_SESS_HANDLE	0xFFFFFFFF
 
 #define BE_ADAPTER_UP		0x00000000
 #define BE_ADAPTER_LINK_DOWN	0x00000001
@@ -351,6 +337,8 @@ struct beiscsi_hba {
 	struct mgmt_session_info boot_sess;
 	struct invalidate_command_table inv_tbl[128];
 
+	unsigned int attr_log_enable;
+
 };
 
 struct beiscsi_session {
@@ -860,4 +848,20 @@ struct hwi_context_memory {
 	struct hwi_async_pdu_context *pasync_ctx;
 };
 
+/* Logging related definitions */
+#define BEISCSI_LOG_INIT	0x0001	/* Initialization events */
+#define BEISCSI_LOG_MBOX	0x0002	/* Mailbox Events */
+#define BEISCSI_LOG_MISC	0x0004	/* Miscllaneous Events */
+#define BEISCSI_LOG_EH		0x0008	/* Error Handler */
+#define BEISCSI_LOG_IO		0x0010	/* IO Code Path */
+#define BEISCSI_LOG_CONFIG	0x0020	/* CONFIG Code Path */
+
+#define beiscsi_log(phba, level, mask, fmt, arg...) \
+do { \
+	uint32_t log_value = phba->attr_log_enable; \
+		if (((mask) & log_value) || (level[1] <= '3')) \
+			shost_printk(level, phba->shost, \
+				     fmt, __LINE__, ##arg); \
+} while (0)
+
 #endif
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 2a096795b9a..aab5dd359e2 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -23,6 +23,53 @@
 #include "be_mgmt.h"
 #include "be_iscsi.h"
 
+/**
+ * mgmt_reopen_session()- Reopen a session based on reopen_type
+ * @phba: Device priv structure instance
+ * @reopen_type: Type of reopen_session FW should do.
+ * @sess_handle: Session Handle of the session to be re-opened
+ *
+ * return
+ *	the TAG used for MBOX Command
+ *
+ **/
+unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
+				  unsigned int reopen_type,
+				  unsigned int sess_handle)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_mcc_wrb *wrb;
+	struct be_cmd_reopen_session_req *req;
+	unsigned int tag = 0;
+
+	beiscsi_log(phba, KERN_INFO,
+		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+		    "BG_%d : In bescsi_get_boot_target\n");
+
+	spin_lock(&ctrl->mbox_lock);
+	tag = alloc_mcc_tag(phba);
+	if (!tag) {
+		spin_unlock(&ctrl->mbox_lock);
+		return tag;
+	}
+
+	wrb = wrb_from_mccq(phba);
+	req = embedded_payload(wrb);
+	wrb->tag0 |= tag;
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+			   OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS,
+			   sizeof(struct be_cmd_reopen_session_resp));
+
+	/* set the reopen_type,sess_handle */
+	req->reopen_type = reopen_type;
+	req->session_handle = sess_handle;
+
+	be_mcc_notify(phba);
+	spin_unlock(&ctrl->mbox_lock);
+	return tag;
+}
+
 unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba)
 {
 	struct be_ctrl_info *ctrl = &phba->ctrl;
@@ -30,7 +77,10 @@ unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba)
 	struct be_cmd_get_boot_target_req *req;
 	unsigned int tag = 0;
 
-	SE_DEBUG(DBG_LVL_8, "In bescsi_get_boot_target\n");
+	beiscsi_log(phba, KERN_INFO,
+		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+		    "BG_%d : In bescsi_get_boot_target\n");
+
 	spin_lock(&ctrl->mbox_lock);
 	tag = alloc_mcc_tag(phba);
 	if (!tag) {
@@ -62,7 +112,10 @@ unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
 	struct be_cmd_get_session_resp *resp;
 	struct be_sge *sge;
 
-	SE_DEBUG(DBG_LVL_8, "In beiscsi_get_session_info\n");
+	beiscsi_log(phba, KERN_INFO,
+		    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+		    "BG_%d : In beiscsi_get_session_info\n");
+
 	spin_lock(&ctrl->mbox_lock);
 	tag = alloc_mcc_tag(phba);
 	if (!tag) {
@@ -121,16 +174,16 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
 		phba->fw_config.iscsi_cid_count =
 					pfw_cfg->ulp[0].sq_count;
 		if (phba->fw_config.iscsi_cid_count > (BE2_MAX_SESSIONS / 2)) {
-			SE_DEBUG(DBG_LVL_8,
-				"FW reported MAX CXNS as %d\t"
-				"Max Supported = %d.\n",
-				phba->fw_config.iscsi_cid_count,
-				BE2_MAX_SESSIONS);
+			beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+				    "BG_%d : FW reported MAX CXNS as %d\t"
+				    "Max Supported = %d.\n",
+				    phba->fw_config.iscsi_cid_count,
+				    BE2_MAX_SESSIONS);
 			phba->fw_config.iscsi_cid_count = BE2_MAX_SESSIONS / 2;
 		}
 	} else {
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Failed in mgmt_get_fw_config\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BG_%d : Failed in mgmt_get_fw_config\n");
 	}
 
 	spin_unlock(&ctrl->mbox_lock);
@@ -150,9 +203,9 @@ int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
 				sizeof(struct be_mgmt_controller_attributes),
 				&nonemb_cmd.dma);
 	if (nonemb_cmd.va == NULL) {
-		SE_DEBUG(DBG_LVL_1,
-			 "Failed to allocate memory for mgmt_check_supported_fw"
-			 "\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BG_%d : Failed to allocate memory for "
+			    "mgmt_check_supported_fw\n");
 		return -ENOMEM;
 	}
 	nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
@@ -169,18 +222,23 @@ int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
 	status = be_mbox_notify(ctrl);
 	if (!status) {
 		struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
-		SE_DEBUG(DBG_LVL_8, "Firmware version of CMD: %s\n",
-			resp->params.hba_attribs.flashrom_version_string);
-		SE_DEBUG(DBG_LVL_8, "Firmware version is : %s\n",
-			resp->params.hba_attribs.firmware_version_string);
-		SE_DEBUG(DBG_LVL_8,
-			"Developer Build, not performing version check...\n");
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BG_%d : Firmware Version of CMD : %s\n"
+			    "Firmware Version is : %s\n"
+			    "Developer Build, not performing version check...\n",
+			    resp->params.hba_attribs
+			    .flashrom_version_string,
+			    resp->params.hba_attribs.
+			    firmware_version_string);
+
 		phba->fw_config.iscsi_features =
 				resp->params.hba_attribs.iscsi_features;
-		SE_DEBUG(DBG_LVL_8, " phba->fw_config.iscsi_features = %d\n",
-				      phba->fw_config.iscsi_features);
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BM_%d : phba->fw_config.iscsi_features = %d\n",
+			    phba->fw_config.iscsi_features);
 	} else
-		SE_DEBUG(DBG_LVL_1, " Failed in mgmt_check_supported_fw\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BG_%d :  Failed in mgmt_check_supported_fw\n");
 	spin_unlock(&ctrl->mbox_lock);
 	if (nonemb_cmd.va)
 		pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
@@ -229,9 +287,10 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
 			   OPCODE_COMMON_READ_FLASH, sizeof(*req));
 		break;
 	default:
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Unsupported cmd = 0x%x\n\n", bsg_req->rqst_data.
-			     h_vendor.vendor_cmd[0]);
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BG_%d : Unsupported cmd = 0x%x\n\n",
+			    bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
+
 		spin_unlock(&ctrl->mbox_lock);
 		return -ENOSYS;
 	}
@@ -275,8 +334,8 @@ int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
 
 	status =  be_mcc_notify_wait(phba);
 	if (status)
-		shost_printk(KERN_WARNING, phba->shost,
-			     " mgmt_epfw_cleanup , FAILED\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BG_%d : mgmt_epfw_cleanup , FAILED\n");
 	spin_unlock(&ctrl->mbox_lock);
 	return status;
 }
@@ -459,8 +518,9 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
 		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
 		beiscsi_ep->ip_type = BE2_IPV6;
 	} else{
-		shost_printk(KERN_ERR, phba->shost, "unknown addr family %d\n",
-			     dst_addr->sa_family);
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BG_%d : unknown addr family %d\n",
+			    dst_addr->sa_family);
 		spin_unlock(&ctrl->mbox_lock);
 		free_mcc_tag(&phba->ctrl, tag);
 		return -EINVAL;
@@ -471,7 +531,8 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
 	if (phba->nxt_cqid == phba->num_cpus)
 		phba->nxt_cqid = 0;
 	req->cq_id = phwi_context->be_cq[i].id;
-	SE_DEBUG(DBG_LVL_8, "i=%d cq_id=%d\n", i, req->cq_id);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+		    "BG_%d : i=%d cq_id=%d\n", i, req->cq_id);
 	req->defq_id = def_hdr_id;
 	req->hdr_ring_id = def_hdr_id;
 	req->data_ring_id = def_data_id;
@@ -506,8 +567,8 @@ unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba)
 	if (!status)
 		phba->interface_handle = pbe_allid->if_hndl_list[0];
 	else {
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Failed in mgmt_get_all_if_id\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BG_%d : Failed in mgmt_get_all_if_id\n");
 	}
 	spin_unlock(&ctrl->mbox_lock);
 
@@ -550,9 +611,10 @@ static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba,
 	extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
 	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
 	if (status || extd_status) {
-		SE_DEBUG(DBG_LVL_1,
-			 "mgmt_exec_nonemb_cmd Failed status = %d"
-			 "extd_status = %d\n", status, extd_status);
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BG_%d : mgmt_exec_nonemb_cmd Failed status = %d"
+			    "extd_status = %d\n", status, extd_status);
 		rc = -EIO;
 		goto free_tag;
 	}
@@ -573,7 +635,8 @@ static int mgmt_alloc_cmd_data(struct beiscsi_hba *phba, struct be_dma_mem *cmd,
 {
 	cmd->va = pci_alloc_consistent(phba->ctrl.pdev, size, &cmd->dma);
 	if (!cmd->va) {
-		SE_DEBUG(DBG_LVL_1, "Failed to allocate memory for if info\n");
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BG_%d : Failed to allocate memory for if info\n");
 		return -ENOMEM;
 	}
 	memset(cmd->va, 0, size);
@@ -629,8 +692,8 @@ mgmt_static_ip_modify(struct beiscsi_hba *phba,
 
 	rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 	if (rc < 0)
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Failed to Modify existing IP Address\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BG_%d : Failed to Modify existing IP Address\n");
 	return rc;
 }
 
@@ -684,8 +747,8 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 
 	if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
 		if (if_info.dhcp_state) {
-			shost_printk(KERN_WARNING, phba->shost,
-				     "DHCP Already Enabled\n");
+			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+				    "BG_%d : DHCP Already Enabled\n");
 			return 0;
 		}
 		/* The ip_param->len is 1 in DHCP case. Setting
@@ -712,8 +775,9 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 
 			rc = mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 			if (rc < 0) {
-				shost_printk(KERN_WARNING, phba->shost,
-					     "Failed to Delete existing dhcp\n");
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_CONFIG,
+					    "BG_%d : Failed to Delete existing dhcp\n");
 				return rc;
 			}
 		}
@@ -732,8 +796,8 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 		memset(&gtway_addr_set, 0, sizeof(gtway_addr_set));
 		rc = mgmt_get_gateway(phba, BE2_IPV4, &gtway_addr_set);
 		if (rc) {
-			shost_printk(KERN_WARNING, phba->shost,
-				     "Failed to Get Gateway Addr\n");
+			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+				    "BG_%d : Failed to Get Gateway Addr\n");
 			return rc;
 		}
 
@@ -743,8 +807,9 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 						 IP_ACTION_DEL, IP_V4_LEN);
 
 			if (rc) {
-				shost_printk(KERN_WARNING, phba->shost,
-					     "Failed to clear Gateway Addr Set\n");
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_CONFIG,
+					    "BG_%d : Failed to clear Gateway Addr Set\n");
 				return rc;
 			}
 		}
@@ -783,8 +848,8 @@ int mgmt_set_gateway(struct beiscsi_hba *phba,
 	memset(&gtway_addr_set, 0, sizeof(gtway_addr_set));
 	rt_val = mgmt_get_gateway(phba, BE2_IPV4, &gtway_addr_set);
 	if (rt_val) {
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Failed to Get Gateway Addr\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BG_%d : Failed to Get Gateway Addr\n");
 		return rt_val;
 	}
 
@@ -793,8 +858,8 @@ int mgmt_set_gateway(struct beiscsi_hba *phba,
 		rt_val = mgmt_modify_gateway(phba, gtway_addr, IP_ACTION_DEL,
 					     gateway_param->len);
 		if (rt_val) {
-			shost_printk(KERN_WARNING, phba->shost,
-				     "Failed to clear Gateway Addr Set\n");
+			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+				    "BG_%d : Failed to clear Gateway Addr Set\n");
 			return rt_val;
 		}
 	}
@@ -804,8 +869,8 @@ int mgmt_set_gateway(struct beiscsi_hba *phba,
 				     gateway_param->len);
 
 	if (rt_val)
-		shost_printk(KERN_WARNING, phba->shost,
-			     "Failed to Set Gateway Addr\n");
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
+			    "BG_%d : Failed to Set Gateway Addr\n");
 
 	return rt_val;
 }
@@ -924,3 +989,150 @@ unsigned int be_cmd_get_port_speed(struct beiscsi_hba *phba)
 	spin_unlock(&ctrl->mbox_lock);
 	return tag;
 }
+
+/**
+ * be_mgmt_get_boot_shandle()- Get the session handle
+ * @phba: device priv structure instance
+ * @s_handle: session handle returned for boot session.
+ *
+ * Get the boot target session handle. In case of
+ * crashdump mode driver has to issue and MBX Cmd
+ * for FW to login to boot target
+ *
+ * return
+ *	Success: 0
+ *	Failure: Non-Zero value
+ *
+ **/
+int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
+			      unsigned int *s_handle)
+{
+	struct be_cmd_get_boot_target_resp *boot_resp;
+	struct be_mcc_wrb *wrb;
+	unsigned int tag, wrb_num;
+	uint8_t boot_retry = 3;
+	unsigned short status, extd_status;
+	struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+
+	do {
+		/* Get the Boot Target Session Handle and Count*/
+		tag = mgmt_get_boot_target(phba);
+		if (!tag) {
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
+				    "BG_%d : Getting Boot Target Info Failed\n");
+			return -EAGAIN;
+		} else
+			wait_event_interruptible(phba->ctrl.mcc_wait[tag],
+						 phba->ctrl.mcc_numtag[tag]);
+
+		wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
+		extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
+		status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
+		if (status || extd_status) {
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+				    "BG_%d : mgmt_get_boot_target Failed"
+				    " status = %d extd_status = %d\n",
+				    status, extd_status);
+			free_mcc_tag(&phba->ctrl, tag);
+			return -EBUSY;
+		}
+		wrb = queue_get_wrb(mccq, wrb_num);
+		free_mcc_tag(&phba->ctrl, tag);
+		boot_resp = embedded_payload(wrb);
+
+		/* Check if the there are any Boot targets configured */
+		if (!boot_resp->boot_session_count) {
+			beiscsi_log(phba, KERN_INFO,
+				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+				    "BG_%d  ;No boot targets configured\n");
+			return -ENXIO;
+		}
+
+		/* FW returns the session handle of the boot session */
+		if (boot_resp->boot_session_handle != INVALID_SESS_HANDLE) {
+			*s_handle = boot_resp->boot_session_handle;
+			return 0;
+		}
+
+		/* Issue MBX Cmd to FW to login to the boot target */
+		tag = mgmt_reopen_session(phba, BE_REOPEN_BOOT_SESSIONS,
+					  INVALID_SESS_HANDLE);
+		if (!tag) {
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+				    "BG_%d : mgmt_reopen_session Failed\n");
+			return -EAGAIN;
+		} else
+			wait_event_interruptible(phba->ctrl.mcc_wait[tag],
+						 phba->ctrl.mcc_numtag[tag]);
+
+		wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
+		extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
+		status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
+		if (status || extd_status) {
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+				    "BG_%d : mgmt_reopen_session Failed"
+				    " status = %d extd_status = %d\n",
+				    status, extd_status);
+			free_mcc_tag(&phba->ctrl, tag);
+			return -EBUSY;
+		}
+		free_mcc_tag(&phba->ctrl, tag);
+
+	} while (--boot_retry);
+
+	/* Couldn't log into the boot target */
+	beiscsi_log(phba, KERN_ERR,
+		    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+		    "BG_%d : Login to Boot Target Failed\n");
+	return -ENXIO;
+}
+
+/**
+ * mgmt_set_vlan()- Issue and wait for CMD completion
+ * @phba: device private structure instance
+ * @vlan_tag: VLAN tag
+ *
+ * Issue the MBX Cmd and wait for the completion of the
+ * command.
+ *
+ * returns
+ *	Success: 0
+ *	Failure: Non-Xero Value
+ **/
+int mgmt_set_vlan(struct beiscsi_hba *phba,
+		   uint16_t vlan_tag)
+{
+	unsigned int tag, wrb_num;
+	unsigned short status, extd_status;
+
+	tag = be_cmd_set_vlan(phba, vlan_tag);
+	if (!tag) {
+		beiscsi_log(phba, KERN_ERR,
+			    (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+			    "BG_%d : VLAN Setting Failed\n");
+		return -EBUSY;
+	} else
+		wait_event_interruptible(phba->ctrl.mcc_wait[tag],
+					 phba->ctrl.mcc_numtag[tag]);
+
+	wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
+	extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
+	status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
+
+	if (status || extd_status) {
+		beiscsi_log(phba, KERN_ERR,
+			    (BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX),
+			    "BS_%d : status : %d extd_status : %d\n",
+			    status, extd_status);
+
+		free_mcc_tag(&phba->ctrl, tag);
+		return -EAGAIN;
+	}
+
+	free_mcc_tag(&phba->ctrl, tag);
+	return 0;
+}
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 5c2e37693ca..c50cef6fec0 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -108,6 +108,7 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
 					 struct bsg_job *job,
 					 struct be_dma_mem *nonemb_cmd);
 
+#define BEISCSI_NO_RST_ISSUE	0
 struct iscsi_invalidate_connection_params_in {
 	struct be_cmd_req_hdr hdr;
 	unsigned int session_handle;
@@ -274,6 +275,10 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 
 unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba);
 
+unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
+				  unsigned int reopen_type,
+				  unsigned sess_handle);
+
 unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
 				   u32 boot_session_handle,
 				   struct be_dma_mem *nonemb_cmd);
@@ -290,4 +295,10 @@ int mgmt_get_gateway(struct beiscsi_hba *phba, int ip_type,
 int mgmt_set_gateway(struct beiscsi_hba *phba,
 		     struct iscsi_iface_param_info *gateway_param);
 
+int be_mgmt_get_boot_shandle(struct beiscsi_hba *phba,
+			      unsigned int *s_handle);
+
+unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba);
+
+int mgmt_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);
 #endif
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 456e5762977..b7c326f7a6d 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -775,7 +775,8 @@ bfa_intx(struct bfa_s *bfa)
 	if (!intr)
 		return BFA_TRUE;
 
-	bfa_msix_lpu_err(bfa, intr);
+	if (bfa->intr_enabled)
+		bfa_msix_lpu_err(bfa, intr);
 
 	return BFA_TRUE;
 }
@@ -803,11 +804,17 @@ bfa_isr_enable(struct bfa_s *bfa)
 	writel(~umsk, bfa->iocfc.bfa_regs.intr_mask);
 	bfa->iocfc.intr_mask = ~umsk;
 	bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0);
+
+	/*
+	 * Set the flag indicating successful enabling of interrupts
+	 */
+	bfa->intr_enabled = BFA_TRUE;
 }
 
 void
 bfa_isr_disable(struct bfa_s *bfa)
 {
+	bfa->intr_enabled = BFA_FALSE;
 	bfa_isr_mode_set(bfa, BFA_FALSE);
 	writel(-1L, bfa->iocfc.bfa_regs.intr_mask);
 	bfa_msix_uninstall(bfa);
@@ -1022,7 +1029,7 @@ bfa_iocfc_mem_claim(struct bfa_s *bfa, struct bfa_iocfc_cfg_s *cfg)
 {
 	u8	*dm_kva = NULL;
 	u64	dm_pa = 0;
-	int	i, per_reqq_sz, per_rspq_sz, dbgsz;
+	int	i, per_reqq_sz, per_rspq_sz;
 	struct bfa_iocfc_s  *iocfc = &bfa->iocfc;
 	struct bfa_mem_dma_s *ioc_dma = BFA_MEM_IOC_DMA(bfa);
 	struct bfa_mem_dma_s *iocfc_dma = BFA_MEM_IOCFC_DMA(bfa);
@@ -1083,11 +1090,8 @@ bfa_iocfc_mem_claim(struct bfa_s *bfa, struct bfa_iocfc_cfg_s *cfg)
 			BFA_CACHELINE_SZ);
 
 	/* Claim IOCFC kva memory */
-	dbgsz = (bfa_auto_recover) ? BFA_DBG_FWTRC_LEN : 0;
-	if (dbgsz > 0) {
-		bfa_ioc_debug_memclaim(&bfa->ioc, bfa_mem_kva_curp(iocfc));
-		bfa_mem_kva_curp(iocfc) += dbgsz;
-	}
+	bfa_ioc_debug_memclaim(&bfa->ioc, bfa_mem_kva_curp(iocfc));
+	bfa_mem_kva_curp(iocfc) += BFA_DBG_FWTRC_LEN;
 }
 
 /*
@@ -1429,8 +1433,7 @@ bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
 	bfa_mem_dma_setup(meminfo, iocfc_dma, dm_len);
 
 	/* kva memory setup for IOCFC */
-	bfa_mem_kva_setup(meminfo, iocfc_kva,
-			((bfa_auto_recover) ? BFA_DBG_FWTRC_LEN : 0));
+	bfa_mem_kva_setup(meminfo, iocfc_kva, BFA_DBG_FWTRC_LEN);
 }
 
 /*
diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index 12bfeed268e..91a8aa394db 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++ b/drivers/scsi/bfa/bfa_cs.h
@@ -168,7 +168,7 @@ __bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
 /*
  * bfa_q_deq - dequeue an element from head of the queue
  */
-#define bfa_q_deq(_q, _qe) {						\
+#define bfa_q_deq(_q, _qe) do {						\
 	if (!list_empty(_q)) {						\
 		(*((struct list_head **) (_qe))) = bfa_q_next(_q);	\
 		bfa_q_prev(bfa_q_next(*((struct list_head **) _qe))) =	\
@@ -177,7 +177,7 @@ __bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
 	} else {							\
 		*((struct list_head **) (_qe)) = (struct list_head *) NULL;\
 	}								\
-}
+} while (0)
 
 /*
  * bfa_q_deq_tail - dequeue an element from tail of the queue
diff --git a/drivers/scsi/bfa/bfa_defs_fcs.h b/drivers/scsi/bfa/bfa_defs_fcs.h
index 3bbc583f65c..06f0a163ca3 100644
--- a/drivers/scsi/bfa/bfa_defs_fcs.h
+++ b/drivers/scsi/bfa/bfa_defs_fcs.h
@@ -93,6 +93,7 @@ struct bfa_lport_cfg_s {
 	wwn_t	       pwwn;       /*  port wwn */
 	wwn_t	       nwwn;       /*  node wwn */
 	struct bfa_lport_symname_s  sym_name;   /*  vm port symbolic name */
+	struct bfa_lport_symname_s node_sym_name; /* Node symbolic name */
 	enum bfa_lport_role roles;      /* FCS port roles */
 	u32     rsvd;
 	bfa_boolean_t   preboot_vp;  /*  vport created from PBC */
@@ -192,6 +193,18 @@ struct bfa_lport_stats_s {
 	u32	ns_gidft_unknown_rsp;
 	u32	ns_gidft_alloc_wait;
 
+	u32	ns_rnnid_sent;
+	u32	ns_rnnid_accepts;
+	u32	ns_rnnid_rsp_err;
+	u32	ns_rnnid_rejects;
+	u32	ns_rnnid_alloc_wait;
+
+	u32	ns_rsnn_nn_sent;
+	u32	ns_rsnn_nn_accepts;
+	u32	ns_rsnn_nn_rsp_err;
+	u32	ns_rsnn_nn_rejects;
+	u32	ns_rsnn_nn_alloc_wait;
+
 	/*
 	 * Mgmt Server stats
 	 */
@@ -410,6 +423,11 @@ struct bfa_rport_remote_link_stats_s {
 	u32 icc; /*  Invalid CRC Count */
 };
 
+struct bfa_rport_qualifier_s {
+	wwn_t	pwwn;	/* Port WWN */
+	u32	pid;	/* port ID */
+	u32	rsvd;
+};
 
 #define BFA_MAX_IO_INDEX 7
 #define BFA_NO_IO_INDEX 9
diff --git a/drivers/scsi/bfa/bfa_fc.h b/drivers/scsi/bfa/bfa_fc.h
index 8d0b88f67a3..e0beb4d7e26 100644
--- a/drivers/scsi/bfa/bfa_fc.h
+++ b/drivers/scsi/bfa/bfa_fc.h
@@ -1279,6 +1279,7 @@ enum {
 	GS_GSPN_ID	= 0x0118,	/* Get symbolic PN on ID */
 	GS_RFT_ID	= 0x0217,	/* Register fc4type on ID */
 	GS_RSPN_ID	= 0x0218,	/* Register symbolic PN on ID */
+	GS_RSNN_NN	= 0x0239,	/* Register symbolic NN on NN */
 	GS_RPN_ID	= 0x0212,	/* Register port name */
 	GS_RNN_ID	= 0x0213,	/* Register node name */
 	GS_RCS_ID	= 0x0214,	/* Register class of service */
@@ -1357,6 +1358,15 @@ struct fcgs_rspnid_req_s {
 };
 
 /*
+ * RSNN_NN
+ */
+struct fcgs_rsnn_nn_req_s {
+	wwn_t	node_name;	/* Node name */
+	u8	snn_len;	/* symbolic node name length */
+	u8	snn[256];	/* symbolic node name */
+};
+
+/*
  * RPN_ID
  */
 struct fcgs_rpnid_req_s {
diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c
index 17b59b8b564..273cee90b3b 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.c
+++ b/drivers/scsi/bfa/bfa_fcbuild.c
@@ -1252,6 +1252,27 @@ fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
 }
 
 u16
+fc_rsnn_nn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
+			wwn_t node_name, u8 *name)
+{
+	struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+	struct fcgs_rsnn_nn_req_s *rsnn_nn =
+		(struct fcgs_rsnn_nn_req_s *) (cthdr + 1);
+	u32	d_id = bfa_hton3b(FC_NAME_SERVER);
+
+	fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+	fc_gs_cthdr_build(cthdr, s_id, GS_RSNN_NN);
+
+	memset(rsnn_nn, 0, sizeof(struct fcgs_rsnn_nn_req_s));
+
+	rsnn_nn->node_name = node_name;
+	rsnn_nn->snn_len = (u8) strlen((char *)name);
+	strncpy((char *)rsnn_nn->snn, (char *)name, rsnn_nn->snn_len);
+
+	return sizeof(struct fcgs_rsnn_nn_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
 fc_gid_ft_build(struct fchs_s *fchs, void *pyld, u32 s_id, u8 fc4_type)
 {
 
diff --git a/drivers/scsi/bfa/bfa_fcbuild.h b/drivers/scsi/bfa/bfa_fcbuild.h
index 42cd9d4da69..03c753d1e54 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.h
+++ b/drivers/scsi/bfa/bfa_fcbuild.h
@@ -166,6 +166,8 @@ enum fc_parse_status fc_rrq_rsp_parse(struct fchs_s *buf, int len);
 
 u16        fc_rspnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
 				u16 ox_id, u8 *name);
+u16	fc_rsnn_nn_build(struct fchs_s *fchs, void *pld, u32 s_id,
+				wwn_t node_name, u8 *name);
 
 u16        fc_rftid_build(struct fchs_s *fchs, void *pld, u32 s_id,
 			       u16 ox_id, enum bfa_lport_role role);
diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
index f0f80e282e3..1633963c66c 100644
--- a/drivers/scsi/bfa/bfa_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -1466,7 +1466,13 @@ bfa_status_t
 bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim,
 			struct bfa_itnim_ioprofile_s *ioprofile)
 {
-	struct bfa_fcpim_s *fcpim = BFA_FCPIM(itnim->bfa);
+	struct bfa_fcpim_s *fcpim;
+
+	if (!itnim)
+		return BFA_STATUS_NO_FCPIM_NEXUS;
+
+	fcpim = BFA_FCPIM(itnim->bfa);
+
 	if (!fcpim->io_profile)
 		return BFA_STATUS_IOPROFILE_OFF;
 
@@ -1484,6 +1490,10 @@ void
 bfa_itnim_clear_stats(struct bfa_itnim_s *itnim)
 {
 	int j;
+
+	if (!itnim)
+		return;
+
 	memset(&itnim->stats, 0, sizeof(itnim->stats));
 	memset(&itnim->ioprofile, 0, sizeof(itnim->ioprofile));
 	for (j = 0; j < BFA_IOBUCKET_MAX; j++)
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index eaac57e1dde..fd3e84d32bd 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -76,6 +76,7 @@ bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad,
 	fcs->bfa = bfa;
 	fcs->bfad = bfad;
 	fcs->min_cfg = min_cfg;
+	fcs->num_rport_logins = 0;
 
 	bfa->fcs = BFA_TRUE;
 	fcbuild_init();
@@ -119,6 +120,18 @@ bfa_fcs_update_cfg(struct bfa_fcs_s *fcs)
 }
 
 /*
+ * Stop FCS operations.
+ */
+void
+bfa_fcs_stop(struct bfa_fcs_s *fcs)
+{
+	bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs);
+	bfa_wc_up(&fcs->wc);
+	bfa_fcs_fabric_modstop(fcs);
+	bfa_wc_wait(&fcs->wc);
+}
+
+/*
  * fcs pbc vport initialization
  */
 void
@@ -153,6 +166,7 @@ bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
 	fcs->driver_info = *driver_info;
 
 	bfa_fcs_fabric_psymb_init(&fcs->fabric);
+	bfa_fcs_fabric_nsymb_init(&fcs->fabric);
 }
 
 /*
@@ -213,6 +227,8 @@ static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric);
 static void bfa_fcs_fabric_delay(void *cbarg);
 static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric);
 static void bfa_fcs_fabric_delete_comp(void *cbarg);
+static void bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric);
+static void bfa_fcs_fabric_stop_comp(void *cbarg);
 static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric,
 				      struct fchs_s *fchs, u16 len);
 static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
@@ -250,6 +266,10 @@ static void	bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
 					   enum bfa_fcs_fabric_event event);
 static void	bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
 					   enum bfa_fcs_fabric_event event);
+static void	bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
+					   enum bfa_fcs_fabric_event event);
+static void	bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
+					  enum bfa_fcs_fabric_event event);
 /*
  *   Beginning state before fabric creation.
  */
@@ -334,6 +354,11 @@ bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
 		bfa_fcs_fabric_delete(fabric);
 		break;
 
+	case BFA_FCS_FABRIC_SM_STOP:
+		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
+		bfa_fcs_fabric_stop(fabric);
+		break;
+
 	default:
 		bfa_sm_fault(fabric->fcs, event);
 	}
@@ -585,6 +610,11 @@ bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
 		bfa_fcs_fabric_delete(fabric);
 		break;
 
+	case BFA_FCS_FABRIC_SM_STOP:
+		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_stopping);
+		bfa_fcs_fabric_stop(fabric);
+		break;
+
 	case BFA_FCS_FABRIC_SM_AUTH_FAILED:
 		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
 		bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
@@ -682,7 +712,62 @@ bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
 	}
 }
 
+/*
+ * Fabric is being stopped, awaiting vport stop completions.
+ */
+static void
+bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
+			   enum bfa_fcs_fabric_event event)
+{
+	bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
+	bfa_trc(fabric->fcs, event);
+
+	switch (event) {
+	case BFA_FCS_FABRIC_SM_STOPCOMP:
+		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
+		bfa_sm_send_event(fabric->lps, BFA_LPS_SM_LOGOUT);
+		break;
+
+	case BFA_FCS_FABRIC_SM_LINK_UP:
+		break;
+
+	case BFA_FCS_FABRIC_SM_LINK_DOWN:
+		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
+		break;
+
+	default:
+		bfa_sm_fault(fabric->fcs, event);
+	}
+}
+
+/*
+ * Fabric is being stopped, cleanup without FLOGO
+ */
+static void
+bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
+			  enum bfa_fcs_fabric_event event)
+{
+	bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
+	bfa_trc(fabric->fcs, event);
 
+	switch (event) {
+	case BFA_FCS_FABRIC_SM_STOPCOMP:
+	case BFA_FCS_FABRIC_SM_LOGOCOMP:
+		bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
+		bfa_wc_down(&(fabric->fcs)->wc);
+		break;
+
+	case BFA_FCS_FABRIC_SM_LINK_DOWN:
+		/*
+		 * Ignore - can get this event if we get notified about IOC down
+		 * before the fabric completion callbk is done.
+		 */
+		break;
+
+	default:
+		bfa_sm_fault(fabric->fcs, event);
+	}
+}
 
 /*
  *  fcs_fabric_private fabric private functions
@@ -760,6 +845,44 @@ bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
 }
 
 /*
+ * Node Symbolic Name Creation for base port and all vports
+ */
+void
+bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric)
+{
+	struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
+	char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
+	struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
+
+	bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
+
+	/* Model name/number */
+	strncpy((char *)&port_cfg->node_sym_name, model,
+		BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
+	strncat((char *)&port_cfg->node_sym_name,
+			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+
+	/* Driver Version */
+	strncat((char *)&port_cfg->node_sym_name, (char *)driver_info->version,
+		BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
+	strncat((char *)&port_cfg->node_sym_name,
+			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+
+	/* Host machine name */
+	strncat((char *)&port_cfg->node_sym_name,
+		(char *)driver_info->host_machine_name,
+		BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
+	strncat((char *)&port_cfg->node_sym_name,
+			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+
+	/* null terminate */
+	port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
+}
+
+/*
  * bfa lps login completion callback
  */
 void
@@ -919,6 +1042,28 @@ bfa_fcs_fabric_delay(void *cbarg)
 }
 
 /*
+ * Stop all vports and wait for vport stop completions.
+ */
+static void
+bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric)
+{
+	struct bfa_fcs_vport_s *vport;
+	struct list_head	*qe, *qen;
+
+	bfa_wc_init(&fabric->stop_wc, bfa_fcs_fabric_stop_comp, fabric);
+
+	list_for_each_safe(qe, qen, &fabric->vport_q) {
+		vport = (struct bfa_fcs_vport_s *) qe;
+		bfa_wc_up(&fabric->stop_wc);
+		bfa_fcs_vport_fcs_stop(vport);
+	}
+
+	bfa_wc_up(&fabric->stop_wc);
+	bfa_fcs_lport_stop(&fabric->bport);
+	bfa_wc_wait(&fabric->stop_wc);
+}
+
+/*
  * Computes operating BB_SCN value
  */
 static u8
@@ -978,6 +1123,14 @@ bfa_fcs_fabric_delete_comp(void *cbarg)
 	bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP);
 }
 
+static void
+bfa_fcs_fabric_stop_comp(void *cbarg)
+{
+	struct bfa_fcs_fabric_s *fabric = cbarg;
+
+	bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOPCOMP);
+}
+
 /*
  *  fcs_fabric_public fabric public functions
  */
@@ -1039,6 +1192,19 @@ bfa_fcs_fabric_modexit(struct bfa_fcs_s *fcs)
 }
 
 /*
+ * Fabric module stop -- stop FCS actions
+ */
+void
+bfa_fcs_fabric_modstop(struct bfa_fcs_s *fcs)
+{
+	struct bfa_fcs_fabric_s *fabric;
+
+	bfa_trc(fcs, 0);
+	fabric = &fcs->fabric;
+	bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOP);
+}
+
+/*
  * Fabric module start -- kick starts FCS actions
  */
 void
@@ -1219,8 +1385,11 @@ bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
 			return;
 		}
 	}
-	bfa_trc(fabric->fcs, els_cmd->els_code);
-	bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len);
+
+	if (!bfa_fcs_fabric_is_switched(fabric))
+		bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len);
+
+	bfa_trc(fabric->fcs, fchs->type);
 }
 
 /*
@@ -1294,7 +1463,7 @@ bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric)
 	u16	reqlen;
 	struct fchs_s	fchs;
 
-	fcxp = bfa_fcs_fcxp_alloc(fabric->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(fabric->fcs, BFA_FALSE);
 	/*
 	 * Do not expect this failure -- expect remote node to retry
 	 */
@@ -1387,6 +1556,13 @@ bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
 	}
 }
 
+void
+bfa_cb_lps_flogo_comp(void *bfad, void *uarg)
+{
+	struct bfa_fcs_fabric_s *fabric = uarg;
+	bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOGOCOMP);
+}
+
 /*
  *	Returns FCS vf structure for a given vf_id.
  *
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 51c9e134571..6c4377cb287 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -62,9 +62,9 @@ struct bfa_fcs_s;
 #define N2N_LOCAL_PID	    0x010000
 #define N2N_REMOTE_PID		0x020000
 #define	BFA_FCS_RETRY_TIMEOUT 2000
+#define BFA_FCS_MAX_NS_RETRIES 5
 #define BFA_FCS_PID_IS_WKA(pid)  ((bfa_ntoh3b(pid) > 0xFFF000) ?  1 : 0)
-
-
+#define BFA_FCS_MAX_RPORT_LOGINS 1024
 
 struct bfa_fcs_lport_ns_s {
 	bfa_sm_t        sm;		/*  state machine */
@@ -72,6 +72,8 @@ struct bfa_fcs_lport_ns_s {
 	struct bfa_fcs_lport_s *port;	/*  parent port */
 	struct bfa_fcxp_s *fcxp;
 	struct bfa_fcxp_wqe_s fcxp_wqe;
+	u8	num_rnnid_retries;
+	u8	num_rsnn_nn_retries;
 };
 
 
@@ -205,6 +207,7 @@ struct bfa_fcs_fabric_s {
 	struct bfa_lps_s	*lps;	/*  lport login services	*/
 	u8	fabric_ip_addr[BFA_FCS_FABRIC_IPADDR_SZ];
 					/*  attached fabric's ip addr  */
+	struct bfa_wc_s stop_wc;	/*  wait counter for stop */
 };
 
 #define bfa_fcs_fabric_npiv_capable(__f)    ((__f)->is_npiv)
@@ -264,6 +267,7 @@ struct bfa_fcs_fabric_s;
 #define bfa_fcs_lport_get_pwwn(_lport)	((_lport)->port_cfg.pwwn)
 #define bfa_fcs_lport_get_nwwn(_lport)	((_lport)->port_cfg.nwwn)
 #define bfa_fcs_lport_get_psym_name(_lport)	((_lport)->port_cfg.sym_name)
+#define bfa_fcs_lport_get_nsym_name(_lport) ((_lport)->port_cfg.node_sym_name)
 #define bfa_fcs_lport_is_initiator(_lport)			\
 	((_lport)->port_cfg.roles & BFA_LPORT_ROLE_FCP_IM)
 #define bfa_fcs_lport_get_nrports(_lport)	\
@@ -286,9 +290,8 @@ bfa_fcs_lport_get_drvport(struct bfa_fcs_lport_s *port)
 
 bfa_boolean_t   bfa_fcs_lport_is_online(struct bfa_fcs_lport_s *port);
 struct bfa_fcs_lport_s *bfa_fcs_get_base_port(struct bfa_fcs_s *fcs);
-void bfa_fcs_lport_get_rports(struct bfa_fcs_lport_s *port,
-			      wwn_t rport_wwns[], int *nrports);
-
+void bfa_fcs_lport_get_rport_quals(struct bfa_fcs_lport_s *port,
+			struct bfa_rport_qualifier_s rport[], int *nrports);
 wwn_t bfa_fcs_lport_get_rport(struct bfa_fcs_lport_s *port, wwn_t wwn,
 			      int index, int nrports, bfa_boolean_t bwwn);
 
@@ -324,12 +327,17 @@ void bfa_fcs_lport_init(struct bfa_fcs_lport_s *lport,
 void            bfa_fcs_lport_online(struct bfa_fcs_lport_s *port);
 void            bfa_fcs_lport_offline(struct bfa_fcs_lport_s *port);
 void            bfa_fcs_lport_delete(struct bfa_fcs_lport_s *port);
+void		bfa_fcs_lport_stop(struct bfa_fcs_lport_s *port);
 struct bfa_fcs_rport_s *bfa_fcs_lport_get_rport_by_pid(
 		struct bfa_fcs_lport_s *port, u32 pid);
+struct bfa_fcs_rport_s *bfa_fcs_lport_get_rport_by_old_pid(
+		struct bfa_fcs_lport_s *port, u32 pid);
 struct bfa_fcs_rport_s *bfa_fcs_lport_get_rport_by_pwwn(
 		struct bfa_fcs_lport_s *port, wwn_t pwwn);
 struct bfa_fcs_rport_s *bfa_fcs_lport_get_rport_by_nwwn(
 		struct bfa_fcs_lport_s *port, wwn_t nwwn);
+struct bfa_fcs_rport_s *bfa_fcs_lport_get_rport_by_qualifier(
+		struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 pid);
 void            bfa_fcs_lport_add_rport(struct bfa_fcs_lport_s *port,
 				       struct bfa_fcs_rport_s *rport);
 void            bfa_fcs_lport_del_rport(struct bfa_fcs_lport_s *port,
@@ -338,6 +346,8 @@ void            bfa_fcs_lport_ns_init(struct bfa_fcs_lport_s *vport);
 void            bfa_fcs_lport_ns_offline(struct bfa_fcs_lport_s *vport);
 void            bfa_fcs_lport_ns_online(struct bfa_fcs_lport_s *vport);
 void            bfa_fcs_lport_ns_query(struct bfa_fcs_lport_s *port);
+void		bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg,
+				struct bfa_fcxp_s *fcxp_alloced);
 void            bfa_fcs_lport_scn_init(struct bfa_fcs_lport_s *vport);
 void            bfa_fcs_lport_scn_offline(struct bfa_fcs_lport_s *vport);
 void            bfa_fcs_lport_scn_online(struct bfa_fcs_lport_s *vport);
@@ -382,6 +392,7 @@ void bfa_fcs_vport_online(struct bfa_fcs_vport_s *vport);
 void bfa_fcs_vport_offline(struct bfa_fcs_vport_s *vport);
 void bfa_fcs_vport_delete_comp(struct bfa_fcs_vport_s *vport);
 void bfa_fcs_vport_fcs_delete(struct bfa_fcs_vport_s *vport);
+void bfa_fcs_vport_fcs_stop(struct bfa_fcs_vport_s *vport);
 void bfa_fcs_vport_stop_comp(struct bfa_fcs_vport_s *vport);
 
 #define BFA_FCS_RPORT_DEF_DEL_TIMEOUT	90	/* in secs */
@@ -419,6 +430,7 @@ struct bfa_fcs_rport_s {
 	struct bfa_fcs_s	*fcs;	/*  fcs instance */
 	struct bfad_rport_s	*rp_drv;	/*  driver peer instance */
 	u32	pid;	/*  port ID of rport */
+	u32	old_pid;	/* PID before rport goes offline */
 	u16	maxfrsize;	/*  maximum frame size */
 	__be16	reply_oxid;	/*  OX_ID of inbound requests */
 	enum fc_cos	fc_cos;	/*  FC classes of service supp */
@@ -459,7 +471,7 @@ struct bfa_fcs_rport_s *bfa_fcs_rport_lookup(struct bfa_fcs_lport_s *port,
 struct bfa_fcs_rport_s *bfa_fcs_rport_lookup_by_nwwn(
 	struct bfa_fcs_lport_s *port, wwn_t rnwwn);
 void bfa_fcs_rport_set_del_timeout(u8 rport_tmo);
-
+void bfa_fcs_rport_set_max_logins(u32 max_logins);
 void bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport,
 	 struct fchs_s *fchs, u16 len);
 void bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport);
@@ -505,12 +517,13 @@ struct bfa_fcs_itnim_s {
 	struct bfa_fcxp_s	*fcxp;		/*  FCXP in use	*/
 	struct bfa_itnim_stats_s	stats;	/*  itn statistics	*/
 };
-#define bfa_fcs_fcxp_alloc(__fcs)	\
-	bfa_fcxp_alloc(NULL, (__fcs)->bfa, 0, 0, NULL, NULL, NULL, NULL)
-
-#define bfa_fcs_fcxp_alloc_wait(__bfa, __wqe, __alloc_cbfn, __alloc_cbarg) \
-	bfa_fcxp_alloc_wait(__bfa, __wqe, __alloc_cbfn, __alloc_cbarg, \
-					NULL, 0, 0, NULL, NULL, NULL, NULL)
+#define bfa_fcs_fcxp_alloc(__fcs, __req)				\
+	bfa_fcxp_req_rsp_alloc(NULL, (__fcs)->bfa, 0, 0,		\
+			       NULL, NULL, NULL, NULL, __req)
+#define bfa_fcs_fcxp_alloc_wait(__bfa, __wqe, __alloc_cbfn,		\
+				__alloc_cbarg, __req)			\
+	bfa_fcxp_req_rsp_alloc_wait(__bfa, __wqe, __alloc_cbfn,		\
+		__alloc_cbarg, NULL, 0, 0, NULL, NULL, NULL, NULL, __req)
 
 static inline struct bfad_port_s *
 bfa_fcs_itnim_get_drvport(struct bfa_fcs_itnim_s *itnim)
@@ -592,7 +605,7 @@ bfa_status_t bfa_fcs_itnim_stats_clear(struct bfa_fcs_lport_s *port,
 struct bfa_fcs_itnim_s *bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport);
 void bfa_fcs_itnim_delete(struct bfa_fcs_itnim_s *itnim);
 void bfa_fcs_itnim_rport_offline(struct bfa_fcs_itnim_s *itnim);
-void bfa_fcs_itnim_rport_online(struct bfa_fcs_itnim_s *itnim);
+void bfa_fcs_itnim_brp_online(struct bfa_fcs_itnim_s *itnim);
 bfa_status_t bfa_fcs_itnim_get_online_state(struct bfa_fcs_itnim_s *itnim);
 void bfa_fcs_itnim_is_initiator(struct bfa_fcs_itnim_s *itnim);
 void bfa_fcs_fcpim_uf_recv(struct bfa_fcs_itnim_s *itnim,
@@ -676,6 +689,7 @@ struct bfa_fcs_s {
 	struct bfa_fcs_stats_s	stats;	/*  FCS statistics */
 	struct bfa_wc_s		wc;	/*  waiting counter */
 	int			fcs_aen_seq;
+	u32		num_rport_logins;
 };
 
 /*
@@ -702,6 +716,9 @@ enum bfa_fcs_fabric_event {
 	BFA_FCS_FABRIC_SM_DELCOMP       = 14,   /*  all vports deleted event */
 	BFA_FCS_FABRIC_SM_LOOPBACK      = 15,   /*  Received our own FLOGI   */
 	BFA_FCS_FABRIC_SM_START         = 16,   /*  from driver       */
+	BFA_FCS_FABRIC_SM_STOP		= 17,	/*  Stop from driver	*/
+	BFA_FCS_FABRIC_SM_STOPCOMP	= 18,	/*  Stop completion	*/
+	BFA_FCS_FABRIC_SM_LOGOCOMP	= 19,	/*  FLOGO completion	*/
 };
 
 /*
@@ -727,6 +744,26 @@ enum rport_event {
 	RPSM_EVENT_ADDRESS_DISC = 16,   /*  Need to Discover rport's PID */
 	RPSM_EVENT_PRLO_RCVD   = 17,    /*  PRLO from remote device     */
 	RPSM_EVENT_PLOGI_RETRY = 18,    /*  Retry PLOGI continuously */
+	RPSM_EVENT_FC4_FCS_ONLINE = 19, /*!< FC-4 FCS online complete */
+};
+
+/*
+ * fcs_itnim_sm FCS itnim state machine events
+ */
+enum bfa_fcs_itnim_event {
+	BFA_FCS_ITNIM_SM_FCS_ONLINE = 1,        /*  rport online event */
+	BFA_FCS_ITNIM_SM_OFFLINE = 2,   /*  rport offline */
+	BFA_FCS_ITNIM_SM_FRMSENT = 3,   /*  prli frame is sent */
+	BFA_FCS_ITNIM_SM_RSP_OK = 4,    /*  good response */
+	BFA_FCS_ITNIM_SM_RSP_ERROR = 5, /*  error response */
+	BFA_FCS_ITNIM_SM_TIMEOUT = 6,   /*  delay timeout */
+	BFA_FCS_ITNIM_SM_HCB_OFFLINE = 7, /*  BFA online callback */
+	BFA_FCS_ITNIM_SM_HCB_ONLINE = 8, /*  BFA offline callback */
+	BFA_FCS_ITNIM_SM_INITIATOR = 9, /*  rport is initiator */
+	BFA_FCS_ITNIM_SM_DELETE = 10,   /*  delete event from rport */
+	BFA_FCS_ITNIM_SM_PRLO = 11,     /*  delete event from rport */
+	BFA_FCS_ITNIM_SM_RSP_NOT_SUPP = 12, /* cmd not supported rsp */
+	BFA_FCS_ITNIM_SM_HAL_ONLINE = 13, /*!< bfa rport online event */
 };
 
 /*
@@ -741,6 +778,7 @@ void bfa_fcs_update_cfg(struct bfa_fcs_s *fcs);
 void bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
 			      struct bfa_fcs_driver_info_s *driver_info);
 void bfa_fcs_exit(struct bfa_fcs_s *fcs);
+void bfa_fcs_stop(struct bfa_fcs_s *fcs);
 
 /*
  * bfa fcs vf public functions
@@ -766,11 +804,13 @@ void bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs);
 void bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric,
 		struct fchs_s *fchs, u16 len);
 void	bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric);
+void	bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric);
 void bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
 	       wwn_t fabric_name);
 u16 bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric);
 void bfa_fcs_uf_attach(struct bfa_fcs_s *fcs);
 void bfa_fcs_port_attach(struct bfa_fcs_s *fcs);
+void bfa_fcs_fabric_modstop(struct bfa_fcs_s *fcs);
 void bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
 			enum bfa_fcs_fabric_event event);
 void bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric,
diff --git a/drivers/scsi/bfa/bfa_fcs_fcpim.c b/drivers/scsi/bfa/bfa_fcs_fcpim.c
index 9272840a240..6dc7926a3ed 100644
--- a/drivers/scsi/bfa/bfa_fcs_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcs_fcpim.c
@@ -40,25 +40,6 @@ static void	bfa_fcs_itnim_prli_response(void *fcsarg,
 static void	bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim,
 			enum bfa_itnim_aen_event event);
 
-/*
- *  fcs_itnim_sm FCS itnim state machine events
- */
-
-enum bfa_fcs_itnim_event {
-	BFA_FCS_ITNIM_SM_ONLINE = 1,	/*  rport online event */
-	BFA_FCS_ITNIM_SM_OFFLINE = 2,	/*  rport offline */
-	BFA_FCS_ITNIM_SM_FRMSENT = 3,	/*  prli frame is sent */
-	BFA_FCS_ITNIM_SM_RSP_OK = 4,	/*  good response */
-	BFA_FCS_ITNIM_SM_RSP_ERROR = 5,	/*  error response */
-	BFA_FCS_ITNIM_SM_TIMEOUT = 6,	/*  delay timeout */
-	BFA_FCS_ITNIM_SM_HCB_OFFLINE = 7, /*  BFA online callback */
-	BFA_FCS_ITNIM_SM_HCB_ONLINE = 8, /*  BFA offline callback */
-	BFA_FCS_ITNIM_SM_INITIATOR = 9,	/*  rport is initiator */
-	BFA_FCS_ITNIM_SM_DELETE = 10,	/*  delete event from rport */
-	BFA_FCS_ITNIM_SM_PRLO = 11,	/*  delete event from rport */
-	BFA_FCS_ITNIM_SM_RSP_NOT_SUPP = 12, /* cmd not supported rsp */
-};
-
 static void	bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
 					 enum bfa_fcs_itnim_event event);
 static void	bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim,
@@ -69,6 +50,8 @@ static void	bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
 					    enum bfa_fcs_itnim_event event);
 static void	bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim,
 					    enum bfa_fcs_itnim_event event);
+static void	bfa_fcs_itnim_sm_hal_rport_online(struct bfa_fcs_itnim_s *itnim,
+					enum bfa_fcs_itnim_event event);
 static void	bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim,
 					enum bfa_fcs_itnim_event event);
 static void	bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim,
@@ -99,7 +82,7 @@ bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim,
 	bfa_trc(itnim->fcs, event);
 
 	switch (event) {
-	case BFA_FCS_ITNIM_SM_ONLINE:
+	case BFA_FCS_ITNIM_SM_FCS_ONLINE:
 		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send);
 		itnim->prli_retries = 0;
 		bfa_fcs_itnim_send_prli(itnim, NULL);
@@ -138,6 +121,7 @@ bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim,
 	case BFA_FCS_ITNIM_SM_INITIATOR:
 		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
 		bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe);
+		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
 		break;
 
 	case BFA_FCS_ITNIM_SM_OFFLINE:
@@ -166,12 +150,13 @@ bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
 
 	switch (event) {
 	case BFA_FCS_ITNIM_SM_RSP_OK:
-		if (itnim->rport->scsi_function == BFA_RPORT_INITIATOR) {
+		if (itnim->rport->scsi_function == BFA_RPORT_INITIATOR)
 			bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
-		} else {
-			bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_online);
-			bfa_itnim_online(itnim->bfa_itnim, itnim->seq_rec);
-		}
+		else
+			bfa_sm_set_state(itnim,
+				bfa_fcs_itnim_sm_hal_rport_online);
+
+		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
 		break;
 
 	case BFA_FCS_ITNIM_SM_RSP_ERROR:
@@ -194,6 +179,7 @@ bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
 	case BFA_FCS_ITNIM_SM_INITIATOR:
 		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
 		bfa_fcxp_discard(itnim->fcxp);
+		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
 		break;
 
 	case BFA_FCS_ITNIM_SM_DELETE:
@@ -208,6 +194,44 @@ bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
 }
 
 static void
+bfa_fcs_itnim_sm_hal_rport_online(struct bfa_fcs_itnim_s *itnim,
+				enum bfa_fcs_itnim_event event)
+{
+	bfa_trc(itnim->fcs, itnim->rport->pwwn);
+	bfa_trc(itnim->fcs, event);
+
+	switch (event) {
+	case BFA_FCS_ITNIM_SM_HAL_ONLINE:
+		if (!itnim->bfa_itnim)
+			itnim->bfa_itnim = bfa_itnim_create(itnim->fcs->bfa,
+					itnim->rport->bfa_rport, itnim);
+
+		if (itnim->bfa_itnim) {
+			bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_online);
+			bfa_itnim_online(itnim->bfa_itnim, itnim->seq_rec);
+		} else {
+			bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
+			bfa_sm_send_event(itnim->rport, RPSM_EVENT_DELETE);
+		}
+
+		break;
+
+	case BFA_FCS_ITNIM_SM_OFFLINE:
+		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
+		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_OFFLINE);
+		break;
+
+	case BFA_FCS_ITNIM_SM_DELETE:
+		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
+		bfa_fcs_itnim_free(itnim);
+		break;
+
+	default:
+		bfa_sm_fault(itnim->fcs, event);
+	}
+}
+
+static void
 bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
 			    enum bfa_fcs_itnim_event event)
 {
@@ -238,6 +262,7 @@ bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
 	case BFA_FCS_ITNIM_SM_INITIATOR:
 		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
 		bfa_timer_stop(&itnim->timer);
+		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
 		break;
 
 	case BFA_FCS_ITNIM_SM_DELETE:
@@ -275,9 +300,8 @@ bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim,
 		break;
 
 	case BFA_FCS_ITNIM_SM_OFFLINE:
-		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
+		bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_offline);
 		bfa_itnim_offline(itnim->bfa_itnim);
-		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_OFFLINE);
 		break;
 
 	case BFA_FCS_ITNIM_SM_DELETE:
@@ -372,8 +396,14 @@ bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim,
 		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_OFFLINE);
 		break;
 
+	/*
+	 * fcs_online is expected here for well known initiator ports
+	 */
+	case BFA_FCS_ITNIM_SM_FCS_ONLINE:
+		bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
+		break;
+
 	case BFA_FCS_ITNIM_SM_RSP_ERROR:
-	case BFA_FCS_ITNIM_SM_ONLINE:
 	case BFA_FCS_ITNIM_SM_INITIATOR:
 		break;
 
@@ -426,11 +456,12 @@ bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(itnim->fcs, itnim->rport->pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		itnim->stats.fcxp_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &itnim->fcxp_wqe,
-				    bfa_fcs_itnim_send_prli, itnim);
+				bfa_fcs_itnim_send_prli, itnim, BFA_TRUE);
 		return;
 	}
 	itnim->fcxp = fcxp;
@@ -483,7 +514,7 @@ bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
 			if (prli_resp->parampage.servparams.initiator) {
 				bfa_trc(itnim->fcs, prli_resp->parampage.type);
 				itnim->rport->scsi_function =
-					 BFA_RPORT_INITIATOR;
+						BFA_RPORT_INITIATOR;
 				itnim->stats.prli_rsp_acc++;
 				itnim->stats.initiator++;
 				bfa_sm_send_event(itnim,
@@ -531,7 +562,11 @@ bfa_fcs_itnim_timeout(void *arg)
 static void
 bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim)
 {
-	bfa_itnim_delete(itnim->bfa_itnim);
+	if (itnim->bfa_itnim) {
+		bfa_itnim_delete(itnim->bfa_itnim);
+		itnim->bfa_itnim = NULL;
+	}
+
 	bfa_fcb_itnim_free(itnim->fcs->bfad, itnim->itnim_drv);
 }
 
@@ -552,7 +587,6 @@ bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport)
 	struct bfa_fcs_lport_s *port = rport->port;
 	struct bfa_fcs_itnim_s *itnim;
 	struct bfad_itnim_s   *itnim_drv;
-	struct bfa_itnim_s *bfa_itnim;
 
 	/*
 	 * call bfad to allocate the itnim
@@ -570,20 +604,7 @@ bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport)
 	itnim->fcs = rport->fcs;
 	itnim->itnim_drv = itnim_drv;
 
-	/*
-	 * call BFA to create the itnim
-	 */
-	bfa_itnim =
-		bfa_itnim_create(port->fcs->bfa, rport->bfa_rport, itnim);
-
-	if (bfa_itnim == NULL) {
-		bfa_trc(port->fcs, rport->pwwn);
-		bfa_fcb_itnim_free(port->fcs->bfad, itnim_drv);
-		WARN_ON(1);
-		return NULL;
-	}
-
-	itnim->bfa_itnim     = bfa_itnim;
+	itnim->bfa_itnim     = NULL;
 	itnim->seq_rec	     = BFA_FALSE;
 	itnim->rec_support   = BFA_FALSE;
 	itnim->conf_comp     = BFA_FALSE;
@@ -613,20 +634,12 @@ bfa_fcs_itnim_delete(struct bfa_fcs_itnim_s *itnim)
  * Notification from rport that PLOGI is complete to initiate FC-4 session.
  */
 void
-bfa_fcs_itnim_rport_online(struct bfa_fcs_itnim_s *itnim)
+bfa_fcs_itnim_brp_online(struct bfa_fcs_itnim_s *itnim)
 {
 	itnim->stats.onlines++;
 
-	if (!BFA_FCS_PID_IS_WKA(itnim->rport->pid)) {
-		bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_ONLINE);
-	} else {
-		/*
-		 *  For well known addresses, we set the itnim to initiator
-		 *  state
-		 */
-		itnim->stats.initiator++;
-		bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR);
-	}
+	if (!BFA_FCS_PID_IS_WKA(itnim->rport->pid))
+		bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HAL_ONLINE);
 }
 
 /*
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index bcc4966e8ba..3b75f6fb2de 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -131,6 +131,8 @@ bfa_fcs_lport_sm_init(struct bfa_fcs_lport_s *port,
 		/* If vport - send completion call back */
 		if (port->vport)
 			bfa_fcs_vport_stop_comp(port->vport);
+		else
+			bfa_wc_down(&(port->fabric->stop_wc));
 		break;
 
 	case BFA_FCS_PORT_SM_OFFLINE:
@@ -166,6 +168,8 @@ bfa_fcs_lport_sm_online(
 			/* If vport - send completion call back */
 			if (port->vport)
 				bfa_fcs_vport_stop_comp(port->vport);
+			else
+				bfa_wc_down(&(port->fabric->stop_wc));
 		} else {
 			bfa_sm_set_state(port, bfa_fcs_lport_sm_stopping);
 			list_for_each_safe(qe, qen, &port->rport_q) {
@@ -222,6 +226,8 @@ bfa_fcs_lport_sm_offline(
 			/* If vport - send completion call back */
 			if (port->vport)
 				bfa_fcs_vport_stop_comp(port->vport);
+			else
+				bfa_wc_down(&(port->fabric->stop_wc));
 		} else {
 			bfa_sm_set_state(port, bfa_fcs_lport_sm_stopping);
 			list_for_each_safe(qe, qen, &port->rport_q) {
@@ -267,6 +273,8 @@ bfa_fcs_lport_sm_stopping(struct bfa_fcs_lport_s *port,
 			/* If vport - send completion call back */
 			if (port->vport)
 				bfa_fcs_vport_stop_comp(port->vport);
+			else
+				bfa_wc_down(&(port->fabric->stop_wc));
 		}
 		break;
 
@@ -340,7 +348,7 @@ bfa_fcs_lport_send_ls_rjt(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs,
 	bfa_trc(port->fcs, rx_fchs->d_id);
 	bfa_trc(port->fcs, rx_fchs->s_id);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -370,7 +378,7 @@ bfa_fcs_lport_send_fcgs_rjt(struct bfa_fcs_lport_s *port,
 	bfa_trc(port->fcs, rx_fchs->d_id);
 	bfa_trc(port->fcs, rx_fchs->s_id);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -507,7 +515,7 @@ bfa_fcs_lport_echo(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs,
 	bfa_trc(port->fcs, rx_fchs->s_id);
 	bfa_trc(port->fcs, rx_fchs->d_id);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -552,7 +560,7 @@ bfa_fcs_lport_rnid(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs,
 	bfa_trc(port->fcs, rx_fchs->d_id);
 	bfa_trc(port->fcs, rx_len);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -684,7 +692,7 @@ bfa_fcs_lport_abts_acc(struct bfa_fcs_lport_s *port, struct fchs_s *rx_fchs)
 	bfa_trc(port->fcs, rx_fchs->d_id);
 	bfa_trc(port->fcs, rx_fchs->s_id);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -854,6 +862,25 @@ bfa_fcs_lport_get_rport_by_pid(struct bfa_fcs_lport_s *port, u32 pid)
 }
 
 /*
+ * OLD_PID based Lookup for a R-Port in the Port R-Port Queue
+ */
+struct bfa_fcs_rport_s *
+bfa_fcs_lport_get_rport_by_old_pid(struct bfa_fcs_lport_s *port, u32 pid)
+{
+	struct bfa_fcs_rport_s *rport;
+	struct list_head	*qe;
+
+	list_for_each(qe, &port->rport_q) {
+		rport = (struct bfa_fcs_rport_s *) qe;
+		if (rport->old_pid == pid)
+			return rport;
+	}
+
+	bfa_trc(port->fcs, pid);
+	return NULL;
+}
+
+/*
  *   PWWN based Lookup for a R-Port in the Port R-Port Queue
  */
 struct bfa_fcs_rport_s *
@@ -892,6 +919,26 @@ bfa_fcs_lport_get_rport_by_nwwn(struct bfa_fcs_lport_s *port, wwn_t nwwn)
 }
 
 /*
+ * PWWN & PID based Lookup for a R-Port in the Port R-Port Queue
+ */
+struct bfa_fcs_rport_s *
+bfa_fcs_lport_get_rport_by_qualifier(struct bfa_fcs_lport_s *port,
+				     wwn_t pwwn, u32 pid)
+{
+	struct bfa_fcs_rport_s *rport;
+	struct list_head	*qe;
+
+	list_for_each(qe, &port->rport_q) {
+		rport = (struct bfa_fcs_rport_s *) qe;
+		if (wwn_is_equal(rport->pwwn, pwwn) && rport->pid == pid)
+			return rport;
+	}
+
+	bfa_trc(port->fcs, pwwn);
+	return NULL;
+}
+
+/*
  * Called by rport module when new rports are discovered.
  */
 void
@@ -939,6 +986,16 @@ bfa_fcs_lport_offline(struct bfa_fcs_lport_s *port)
 }
 
 /*
+ * Called by fabric for base port and by vport for virtual ports
+ * when target mode driver is unloaded.
+ */
+void
+bfa_fcs_lport_stop(struct bfa_fcs_lport_s *port)
+{
+	bfa_sm_send_event(port, BFA_FCS_PORT_SM_STOP);
+}
+
+/*
  * Called by fabric to delete base lport and associated resources.
  *
  * Called by vport to delete lport and associated resources. Should call
@@ -1657,10 +1714,11 @@ bfa_fcs_lport_fdmi_send_rhba(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &fdmi->fcxp_wqe,
-					bfa_fcs_lport_fdmi_send_rhba, fdmi);
+				bfa_fcs_lport_fdmi_send_rhba, fdmi, BFA_TRUE);
 		return;
 	}
 	fdmi->fcxp = fcxp;
@@ -1931,10 +1989,11 @@ bfa_fcs_lport_fdmi_send_rprt(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &fdmi->fcxp_wqe,
-					bfa_fcs_lport_fdmi_send_rprt, fdmi);
+				bfa_fcs_lport_fdmi_send_rprt, fdmi, BFA_TRUE);
 		return;
 	}
 	fdmi->fcxp = fcxp;
@@ -2146,10 +2205,11 @@ bfa_fcs_lport_fdmi_send_rpa(void *fdmi_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &fdmi->fcxp_wqe,
-					bfa_fcs_lport_fdmi_send_rpa, fdmi);
+				bfa_fcs_lport_fdmi_send_rpa, fdmi, BFA_TRUE);
 		return;
 	}
 	fdmi->fcxp = fcxp;
@@ -2736,10 +2796,11 @@ bfa_fcs_lport_ms_send_gmal(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->pid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe,
-					bfa_fcs_lport_ms_send_gmal, ms);
+				bfa_fcs_lport_ms_send_gmal, ms, BFA_TRUE);
 		return;
 	}
 	ms->fcxp = fcxp;
@@ -2936,10 +2997,11 @@ bfa_fcs_lport_ms_send_gfn(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->pid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe,
-					bfa_fcs_lport_ms_send_gfn, ms);
+				bfa_fcs_lport_ms_send_gfn, ms, BFA_TRUE);
 		return;
 	}
 	ms->fcxp = fcxp;
@@ -3012,11 +3074,12 @@ bfa_fcs_lport_ms_send_plogi(void *ms_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->pid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		port->stats.ms_plogi_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ms->fcxp_wqe,
-					bfa_fcs_lport_ms_send_plogi, ms);
+				bfa_fcs_lport_ms_send_plogi, ms, BFA_TRUE);
 		return;
 	}
 	ms->fcxp = fcxp;
@@ -3166,6 +3229,10 @@ static void     bfa_fcs_lport_ns_send_rff_id(void *ns_cbarg,
 					    struct bfa_fcxp_s *fcxp_alloced);
 static void     bfa_fcs_lport_ns_send_gid_ft(void *ns_cbarg,
 					    struct bfa_fcxp_s *fcxp_alloced);
+static void	bfa_fcs_lport_ns_send_rnn_id(void *ns_cbarg,
+					struct bfa_fcxp_s *fcxp_alloced);
+static void	bfa_fcs_lport_ns_send_rsnn_nn(void *ns_cbarg,
+					struct bfa_fcxp_s *fcxp_alloced);
 static void     bfa_fcs_lport_ns_timeout(void *arg);
 static void     bfa_fcs_lport_ns_plogi_response(void *fcsarg,
 					       struct bfa_fcxp_s *fcxp,
@@ -3202,6 +3269,20 @@ static void     bfa_fcs_lport_ns_gid_ft_response(void *fcsarg,
 						u32 rsp_len,
 						u32 resid_len,
 						struct fchs_s *rsp_fchs);
+static void     bfa_fcs_lport_ns_rnn_id_response(void *fcsarg,
+						struct bfa_fcxp_s *fcxp,
+						void *cbarg,
+						bfa_status_t req_status,
+						u32 rsp_len,
+						u32 resid_len,
+						struct fchs_s *rsp_fchs);
+static void     bfa_fcs_lport_ns_rsnn_nn_response(void *fcsarg,
+						struct bfa_fcxp_s *fcxp,
+						void *cbarg,
+						bfa_status_t req_status,
+						u32 rsp_len,
+						u32 resid_len,
+						struct fchs_s *rsp_fchs);
 static void     bfa_fcs_lport_ns_process_gidft_pids(
 				struct bfa_fcs_lport_s *port,
 				u32 *pid_buf, u32 n_pids);
@@ -3226,6 +3307,8 @@ enum vport_ns_event {
 	NSSM_EVENT_RFTID_SENT = 9,
 	NSSM_EVENT_RFFID_SENT = 10,
 	NSSM_EVENT_GIDFT_SENT = 11,
+	NSSM_EVENT_RNNID_SENT = 12,
+	NSSM_EVENT_RSNN_NN_SENT = 13,
 };
 
 static void     bfa_fcs_lport_ns_sm_offline(struct bfa_fcs_lport_ns_s *ns,
@@ -3266,6 +3349,21 @@ static void     bfa_fcs_lport_ns_sm_gid_ft_retry(struct bfa_fcs_lport_ns_s *ns,
 						enum vport_ns_event event);
 static void     bfa_fcs_lport_ns_sm_online(struct bfa_fcs_lport_ns_s *ns,
 					  enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_sending_rnn_id(
+					struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rnn_id(struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rnn_id_retry(struct bfa_fcs_lport_ns_s *ns,
+						enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_sending_rsnn_nn(
+					struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
+						enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rsnn_nn_retry(
+					struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event);
 /*
  *	Start in offline state - awaiting linkup
  */
@@ -3333,8 +3431,9 @@ bfa_fcs_lport_ns_sm_plogi(struct bfa_fcs_lport_ns_s *ns,
 		break;
 
 	case NSSM_EVENT_RSP_OK:
-		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rspn_id);
-		bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rnn_id);
+		ns->num_rnnid_retries = 0;
+		bfa_fcs_lport_ns_send_rnn_id(ns, NULL);
 		break;
 
 	case NSSM_EVENT_PORT_OFFLINE:
@@ -3374,6 +3473,176 @@ bfa_fcs_lport_ns_sm_plogi_retry(struct bfa_fcs_lport_ns_s *ns,
 }
 
 static void
+bfa_fcs_lport_ns_sm_sending_rnn_id(struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event)
+{
+	bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+	bfa_trc(ns->port->fcs, event);
+
+	switch (event) {
+	case NSSM_EVENT_RNNID_SENT:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rnn_id);
+		break;
+
+	case NSSM_EVENT_PORT_OFFLINE:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+		bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+						&ns->fcxp_wqe);
+		break;
+	default:
+		bfa_sm_fault(ns->port->fcs, event);
+	}
+}
+
+static void
+bfa_fcs_lport_ns_sm_rnn_id(struct bfa_fcs_lport_ns_s *ns,
+				enum vport_ns_event event)
+{
+	bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+	bfa_trc(ns->port->fcs, event);
+
+	switch (event) {
+	case NSSM_EVENT_RSP_OK:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rsnn_nn);
+		ns->num_rnnid_retries = 0;
+		ns->num_rsnn_nn_retries = 0;
+		bfa_fcs_lport_ns_send_rsnn_nn(ns, NULL);
+		break;
+
+	case NSSM_EVENT_RSP_ERROR:
+		if (ns->num_rnnid_retries < BFA_FCS_MAX_NS_RETRIES) {
+			bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rnn_id_retry);
+			ns->port->stats.ns_retries++;
+			ns->num_rnnid_retries++;
+			bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+				&ns->timer, bfa_fcs_lport_ns_timeout, ns,
+				BFA_FCS_RETRY_TIMEOUT);
+		} else {
+			bfa_sm_set_state(ns,
+				bfa_fcs_lport_ns_sm_sending_rspn_id);
+			bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+		}
+		break;
+
+	case NSSM_EVENT_PORT_OFFLINE:
+		bfa_fcxp_discard(ns->fcxp);
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+		break;
+
+	default:
+		bfa_sm_fault(ns->port->fcs, event);
+	}
+}
+
+static void
+bfa_fcs_lport_ns_sm_rnn_id_retry(struct bfa_fcs_lport_ns_s *ns,
+				enum vport_ns_event event)
+{
+	bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+	bfa_trc(ns->port->fcs, event);
+
+	switch (event) {
+	case NSSM_EVENT_TIMEOUT:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rnn_id);
+		bfa_fcs_lport_ns_send_rnn_id(ns, NULL);
+		break;
+
+	case NSSM_EVENT_PORT_OFFLINE:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+		bfa_timer_stop(&ns->timer);
+		break;
+
+	default:
+		bfa_sm_fault(ns->port->fcs, event);
+	}
+}
+
+static void
+bfa_fcs_lport_ns_sm_sending_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event)
+{
+	bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+	bfa_trc(ns->port->fcs, event);
+
+	switch (event) {
+	case NSSM_EVENT_RSNN_NN_SENT:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rsnn_nn);
+		break;
+
+	case NSSM_EVENT_PORT_OFFLINE:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+		bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+			&ns->fcxp_wqe);
+		break;
+
+	default:
+		bfa_sm_fault(ns->port->fcs, event);
+	}
+}
+
+static void
+bfa_fcs_lport_ns_sm_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
+				enum vport_ns_event event)
+{
+	bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+	bfa_trc(ns->port->fcs, event);
+
+	switch (event) {
+	case NSSM_EVENT_RSP_OK:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rspn_id);
+		ns->num_rsnn_nn_retries = 0;
+		bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+		break;
+
+	case NSSM_EVENT_RSP_ERROR:
+		if (ns->num_rsnn_nn_retries < BFA_FCS_MAX_NS_RETRIES) {
+			bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rsnn_nn_retry);
+			ns->port->stats.ns_retries++;
+			ns->num_rsnn_nn_retries++;
+			bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+					&ns->timer, bfa_fcs_lport_ns_timeout,
+					ns, BFA_FCS_RETRY_TIMEOUT);
+		} else {
+			bfa_sm_set_state(ns,
+				bfa_fcs_lport_ns_sm_sending_rspn_id);
+			bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+		}
+		break;
+
+	case NSSM_EVENT_PORT_OFFLINE:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+		bfa_fcxp_discard(ns->fcxp);
+		break;
+
+	default:
+		bfa_sm_fault(ns->port->fcs, event);
+	}
+}
+
+static void
+bfa_fcs_lport_ns_sm_rsnn_nn_retry(struct bfa_fcs_lport_ns_s *ns,
+					enum vport_ns_event event)
+{
+	bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+	bfa_trc(ns->port->fcs, event);
+
+	switch (event) {
+	case NSSM_EVENT_TIMEOUT:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rsnn_nn);
+		bfa_fcs_lport_ns_send_rsnn_nn(ns, NULL);
+		break;
+
+	case NSSM_EVENT_PORT_OFFLINE:
+		bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+		bfa_timer_stop(&ns->timer);
+		break;
+
+	default:
+		bfa_sm_fault(ns->port->fcs, event);
+	}
+}
+
+static void
 bfa_fcs_lport_ns_sm_sending_rspn_id(struct bfa_fcs_lport_ns_s *ns,
 				   enum vport_ns_event event)
 {
@@ -3770,11 +4039,12 @@ bfa_fcs_lport_ns_send_plogi(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->pid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		port->stats.ns_plogi_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
-					bfa_fcs_lport_ns_send_plogi, ns);
+				bfa_fcs_lport_ns_send_plogi, ns, BFA_TRUE);
 		return;
 	}
 	ns->fcxp = fcxp;
@@ -3853,6 +4123,162 @@ bfa_fcs_lport_ns_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
 }
 
 /*
+ * Register node name for port_id
+ */
+static void
+bfa_fcs_lport_ns_send_rnn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
+{
+	struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
+	struct bfa_fcs_lport_s *port = ns->port;
+	struct fchs_s  fchs;
+	int	len;
+	struct bfa_fcxp_s *fcxp;
+
+	bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+	fcxp = fcxp_alloced ? fcxp_alloced :
+			bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
+	if (!fcxp) {
+		port->stats.ns_rnnid_alloc_wait++;
+		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
+				bfa_fcs_lport_ns_send_rnn_id, ns, BFA_TRUE);
+		return;
+	}
+
+	ns->fcxp = fcxp;
+
+	len = fc_rnnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
+				bfa_fcs_lport_get_fcid(port),
+				bfa_fcs_lport_get_fcid(port),
+				bfa_fcs_lport_get_nwwn(port));
+
+	bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
+			  FC_CLASS_3, len, &fchs,
+			  bfa_fcs_lport_ns_rnn_id_response, (void *)ns,
+			  FC_MAX_PDUSZ, FC_FCCT_TOV);
+
+	port->stats.ns_rnnid_sent++;
+	bfa_sm_send_event(ns, NSSM_EVENT_RNNID_SENT);
+}
+
+static void
+bfa_fcs_lport_ns_rnn_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
+				void *cbarg, bfa_status_t req_status,
+				u32 rsp_len, u32 resid_len,
+				struct fchs_s *rsp_fchs)
+
+{
+	struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
+	struct bfa_fcs_lport_s *port = ns->port;
+	struct ct_hdr_s	*cthdr = NULL;
+
+	bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+	/*
+	 * Sanity Checks
+	 */
+	if (req_status != BFA_STATUS_OK) {
+		bfa_trc(port->fcs, req_status);
+		port->stats.ns_rnnid_rsp_err++;
+		bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+		return;
+	}
+
+	cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
+	cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);
+
+	if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
+		port->stats.ns_rnnid_accepts++;
+		bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
+		return;
+	}
+
+	port->stats.ns_rnnid_rejects++;
+	bfa_trc(port->fcs, cthdr->reason_code);
+	bfa_trc(port->fcs, cthdr->exp_code);
+	bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+}
+
+/*
+ * Register the symbolic node name for a given node name.
+ */
+static void
+bfa_fcs_lport_ns_send_rsnn_nn(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
+{
+	struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
+	struct bfa_fcs_lport_s *port = ns->port;
+	struct fchs_s  fchs;
+	int     len;
+	struct bfa_fcxp_s *fcxp;
+	u8 *nsymbl;
+
+	bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+	fcxp = fcxp_alloced ? fcxp_alloced :
+			bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
+	if (!fcxp) {
+		port->stats.ns_rsnn_nn_alloc_wait++;
+		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
+				bfa_fcs_lport_ns_send_rsnn_nn, ns, BFA_TRUE);
+		return;
+	}
+	ns->fcxp = fcxp;
+
+	nsymbl = (u8 *) &(bfa_fcs_lport_get_nsym_name(
+					bfa_fcs_get_base_port(port->fcs)));
+
+	len = fc_rsnn_nn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
+				bfa_fcs_lport_get_fcid(port),
+				bfa_fcs_lport_get_nwwn(port), nsymbl);
+
+	bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
+			  FC_CLASS_3, len, &fchs,
+			  bfa_fcs_lport_ns_rsnn_nn_response, (void *)ns,
+			  FC_MAX_PDUSZ, FC_FCCT_TOV);
+
+	port->stats.ns_rsnn_nn_sent++;
+
+	bfa_sm_send_event(ns, NSSM_EVENT_RSNN_NN_SENT);
+}
+
+static void
+bfa_fcs_lport_ns_rsnn_nn_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
+				void *cbarg, bfa_status_t req_status,
+				u32 rsp_len, u32 resid_len,
+				struct fchs_s *rsp_fchs)
+{
+	struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
+	struct bfa_fcs_lport_s *port = ns->port;
+	struct ct_hdr_s	*cthdr = NULL;
+
+	bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+	/*
+	 * Sanity Checks
+	 */
+	if (req_status != BFA_STATUS_OK) {
+		bfa_trc(port->fcs, req_status);
+		port->stats.ns_rsnn_nn_rsp_err++;
+		bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+		return;
+	}
+
+	cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
+	cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);
+
+	if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
+		port->stats.ns_rsnn_nn_accepts++;
+		bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
+		return;
+	}
+
+	port->stats.ns_rsnn_nn_rejects++;
+	bfa_trc(port->fcs, cthdr->reason_code);
+	bfa_trc(port->fcs, cthdr->exp_code);
+	bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+}
+
+/*
  * Register the symbolic port name.
  */
 static void
@@ -3870,11 +4296,12 @@ bfa_fcs_lport_ns_send_rspn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		port->stats.ns_rspnid_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
-					bfa_fcs_lport_ns_send_rspn_id, ns);
+				bfa_fcs_lport_ns_send_rspn_id, ns, BFA_TRUE);
 		return;
 	}
 	ns->fcxp = fcxp;
@@ -3971,11 +4398,12 @@ bfa_fcs_lport_ns_send_rft_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		port->stats.ns_rftid_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
-					bfa_fcs_lport_ns_send_rft_id, ns);
+				bfa_fcs_lport_ns_send_rft_id, ns, BFA_TRUE);
 		return;
 	}
 	ns->fcxp = fcxp;
@@ -4044,11 +4472,12 @@ bfa_fcs_lport_ns_send_rff_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		port->stats.ns_rffid_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
-					bfa_fcs_lport_ns_send_rff_id, ns);
+				bfa_fcs_lport_ns_send_rff_id, ns, BFA_TRUE);
 		return;
 	}
 	ns->fcxp = fcxp;
@@ -4127,11 +4556,12 @@ bfa_fcs_lport_ns_send_gid_ft(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(port->fcs, port->pid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		port->stats.ns_gidft_alloc_wait++;
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
-					bfa_fcs_lport_ns_send_gid_ft, ns);
+				bfa_fcs_lport_ns_send_gid_ft, ns, BFA_TRUE);
 		return;
 	}
 	ns->fcxp = fcxp;
@@ -4261,6 +4691,10 @@ bfa_fcs_lport_ns_process_gidft_pids(struct bfa_fcs_lport_s *port, u32 *pid_buf,
 	struct fcgs_gidft_resp_s *gidft_entry;
 	struct bfa_fcs_rport_s *rport;
 	u32        ii;
+	struct bfa_fcs_fabric_s *fabric = port->fabric;
+	struct bfa_fcs_vport_s *vport;
+	struct list_head *qe;
+	u8 found = 0;
 
 	for (ii = 0; ii < n_pids; ii++) {
 		gidft_entry = (struct fcgs_gidft_resp_s *) &pid_buf[ii];
@@ -4269,6 +4703,29 @@ bfa_fcs_lport_ns_process_gidft_pids(struct bfa_fcs_lport_s *port, u32 *pid_buf,
 			continue;
 
 		/*
+		 * Ignore PID if it is of base port
+		 * (Avoid vports discovering base port as remote port)
+		 */
+		if (gidft_entry->pid == fabric->bport.pid)
+			continue;
+
+		/*
+		 * Ignore PID if it is of vport created on the same base port
+		 * (Avoid vport discovering every other vport created on the
+		 * same port as remote port)
+		 */
+		list_for_each(qe, &fabric->vport_q) {
+			vport = (struct bfa_fcs_vport_s *) qe;
+			if (vport->lport.pid == gidft_entry->pid)
+				found = 1;
+		}
+
+		if (found) {
+			found = 0;
+			continue;
+		}
+
+		/*
 		 * Check if this rport already exists
 		 */
 		rport = bfa_fcs_lport_get_rport_by_pid(port, gidft_entry->pid);
@@ -4335,7 +4792,8 @@ bfa_fcs_lport_ns_query(struct bfa_fcs_lport_s *port)
 	struct bfa_fcs_lport_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);
 
 	bfa_trc(port->fcs, port->pid);
-	bfa_sm_send_event(ns, NSSM_EVENT_NS_QUERY);
+	if (bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_online))
+		bfa_sm_send_event(ns, NSSM_EVENT_NS_QUERY);
 }
 
 static void
@@ -4355,6 +4813,70 @@ bfa_fcs_lport_ns_boot_target_disc(bfa_fcs_lport_t *port)
 	}
 }
 
+void
+bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
+{
+	struct bfa_fcs_lport_ns_s *ns = cbarg;
+	struct bfa_fcs_lport_s *port = ns->port;
+	struct fchs_s fchs;
+	struct bfa_fcxp_s *fcxp;
+	u8 symbl[256];
+	u8 *psymbl = &symbl[0];
+	int len;
+
+	if (!bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online))
+		return;
+
+	/* Avoid sending RSPN in the following states. */
+	if (bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_offline) ||
+	    bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_sending) ||
+	    bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi) ||
+	    bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_retry) ||
+	    bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_rspn_id_retry))
+		return;
+
+	memset(symbl, 0, sizeof(symbl));
+	bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
+	if (!fcxp) {
+		port->stats.ns_rspnid_alloc_wait++;
+		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
+			bfa_fcs_lport_ns_util_send_rspn_id, ns, BFA_FALSE);
+		return;
+	}
+
+	ns->fcxp = fcxp;
+
+	if (port->vport) {
+		/*
+		 * For Vports, we append the vport's port symbolic name
+		 * to that of the base port.
+		 */
+		strncpy((char *)psymbl, (char *)&(bfa_fcs_lport_get_psym_name
+			(bfa_fcs_get_base_port(port->fcs))),
+			strlen((char *)&bfa_fcs_lport_get_psym_name(
+			bfa_fcs_get_base_port(port->fcs))));
+
+		/* Ensure we have a null terminating string. */
+		((char *)psymbl)[strlen((char *)&bfa_fcs_lport_get_psym_name(
+		 bfa_fcs_get_base_port(port->fcs)))] = 0;
+
+		strncat((char *)psymbl,
+			(char *)&(bfa_fcs_lport_get_psym_name(port)),
+			strlen((char *)&bfa_fcs_lport_get_psym_name(port)));
+	}
+
+	len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
+			      bfa_fcs_lport_get_fcid(port), 0, psymbl);
+
+	bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
+		      FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
+
+	port->stats.ns_rspnid_sent++;
+}
+
 /*
  * FCS SCN
  */
@@ -4529,10 +5051,11 @@ bfa_fcs_lport_scn_send_scr(void *scn_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 	bfa_trc(port->fcs, port->pid);
 	bfa_trc(port->fcs, port->port_cfg.pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &scn->fcxp_wqe,
-					bfa_fcs_lport_scn_send_scr, scn);
+				bfa_fcs_lport_scn_send_scr, scn, BFA_TRUE);
 		return;
 	}
 	scn->fcxp = fcxp;
@@ -4614,7 +5137,7 @@ bfa_fcs_lport_scn_send_ls_acc(struct bfa_fcs_lport_s *port,
 
 	bfa_trc(port->fcs, rx_fchs->s_id);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -4688,14 +5211,33 @@ static void
 bfa_fcs_lport_scn_portid_rscn(struct bfa_fcs_lport_s *port, u32 rpid)
 {
 	struct bfa_fcs_rport_s *rport;
+	struct bfa_fcs_fabric_s *fabric = port->fabric;
+	struct bfa_fcs_vport_s *vport;
+	struct list_head *qe;
 
 	bfa_trc(port->fcs, rpid);
 
 	/*
+	 * Ignore PID if it is of base port or of vports created on the
+	 * same base port. It is to avoid vports discovering base port or
+	 * other vports created on same base port as remote port
+	 */
+	if (rpid == fabric->bport.pid)
+		return;
+
+	list_for_each(qe, &fabric->vport_q) {
+		vport = (struct bfa_fcs_vport_s *) qe;
+		if (vport->lport.pid == rpid)
+			return;
+	}
+	/*
 	 * If this is an unknown device, then it just came online.
 	 * Otherwise let rport handle the RSCN event.
 	 */
 	rport = bfa_fcs_lport_get_rport_by_pid(port, rpid);
+	if (!rport)
+		rport = bfa_fcs_lport_get_rport_by_old_pid(port, rpid);
+
 	if (rport == NULL) {
 		/*
 		 * If min cfg mode is enabled, we donot need to
@@ -4888,15 +5430,15 @@ bfa_fcs_lport_get_rport(struct bfa_fcs_lport_s *port, wwn_t wwn, int index,
 }
 
 void
-bfa_fcs_lport_get_rports(struct bfa_fcs_lport_s *port,
-	 wwn_t rport_wwns[], int *nrports)
+bfa_fcs_lport_get_rport_quals(struct bfa_fcs_lport_s *port,
+		struct bfa_rport_qualifier_s rports[], int *nrports)
 {
 	struct list_head	*qh, *qe;
 	struct bfa_fcs_rport_s *rport = NULL;
 	int	i;
 	struct bfa_fcs_s	*fcs;
 
-	if (port == NULL || rport_wwns == NULL || *nrports == 0)
+	if (port == NULL || rports == NULL || *nrports == 0)
 		return;
 
 	fcs = port->fcs;
@@ -4916,7 +5458,13 @@ bfa_fcs_lport_get_rports(struct bfa_fcs_lport_s *port,
 			continue;
 		}
 
-		rport_wwns[i] = rport->pwwn;
+		if (!rport->pwwn && !rport->pid) {
+			qe = bfa_q_next(qe);
+			continue;
+		}
+
+		rports[i].pwwn = rport->pwwn;
+		rports[i].pid = rport->pid;
 
 		i++;
 		qe = bfa_q_next(qe);
@@ -5760,6 +6308,16 @@ bfa_fcs_vport_cleanup(struct bfa_fcs_vport_s *vport)
 {
 	vport->vport_stats.fab_cleanup++;
 }
+
+/*
+ * Stop notification from fabric SM. To be invoked from within FCS.
+ */
+void
+bfa_fcs_vport_fcs_stop(struct bfa_fcs_vport_s *vport)
+{
+	bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_STOP);
+}
+
 /*
  * delete notification from fabric SM. To be invoked from within FCS.
  */
diff --git a/drivers/scsi/bfa/bfa_fcs_rport.c b/drivers/scsi/bfa/bfa_fcs_rport.c
index fe0463a1db0..cc43b2a58ce 100644
--- a/drivers/scsi/bfa/bfa_fcs_rport.c
+++ b/drivers/scsi/bfa/bfa_fcs_rport.c
@@ -30,14 +30,22 @@ static u32
 bfa_fcs_rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000;
 	 /* In millisecs */
 /*
+ * bfa_fcs_rport_max_logins is max count of bfa_fcs_rports
+ * whereas DEF_CFG_NUM_RPORTS is max count of bfa_rports
+ */
+static u32 bfa_fcs_rport_max_logins = BFA_FCS_MAX_RPORT_LOGINS;
+
+/*
  * forward declarations
  */
 static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(
 		struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid);
 static void	bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport);
 static void	bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport);
-static void	bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport);
-static void	bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport);
+static void	bfa_fcs_rport_fcs_online_action(struct bfa_fcs_rport_s *rport);
+static void	bfa_fcs_rport_hal_online_action(struct bfa_fcs_rport_s *rport);
+static void	bfa_fcs_rport_fcs_offline_action(struct bfa_fcs_rport_s *rport);
+static void	bfa_fcs_rport_hal_offline_action(struct bfa_fcs_rport_s *rport);
 static void	bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport,
 					struct fc_logi_s *plogi);
 static void	bfa_fcs_rport_timeout(void *arg);
@@ -76,6 +84,7 @@ static void	bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport,
 static void	bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
 				struct fchs_s *rx_fchs, u16 len);
 static void bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport);
+static void	bfa_fcs_rport_hal_offline(struct bfa_fcs_rport_s *rport);
 
 static void	bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport,
 					enum rport_event event);
@@ -87,6 +96,8 @@ static void	bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
 						enum rport_event event);
 static void	bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport,
 					enum rport_event event);
+static void	bfa_fcs_rport_sm_fc4_fcs_online(struct bfa_fcs_rport_s *rport,
+					enum rport_event event);
 static void	bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
 						enum rport_event event);
 static void	bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport,
@@ -123,6 +134,10 @@ static void	bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
 						enum rport_event event);
 static void	bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
 						enum rport_event event);
+static void	bfa_fcs_rport_sm_fc4_off_delete(struct bfa_fcs_rport_s *rport,
+						enum rport_event event);
+static void	bfa_fcs_rport_sm_delete_pending(struct bfa_fcs_rport_s *rport,
+						enum rport_event event);
 
 static struct bfa_sm_table_s rport_sm_table[] = {
 	{BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT},
@@ -130,6 +145,7 @@ static struct bfa_sm_table_s rport_sm_table[] = {
 	{BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE},
 	{BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY},
 	{BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI},
+	{BFA_SM(bfa_fcs_rport_sm_fc4_fcs_online), BFA_RPORT_ONLINE},
 	{BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE},
 	{BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE},
 	{BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY},
@@ -167,8 +183,8 @@ bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event)
 		break;
 
 	case RPSM_EVENT_PLOGI_RCVD:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending);
-		bfa_fcs_rport_send_plogiacc(rport, NULL);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
@@ -252,8 +268,8 @@ bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport,
 
 	switch (event) {
 	case RPSM_EVENT_FCXP_SENT:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	case RPSM_EVENT_DELETE:
@@ -348,9 +364,9 @@ bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		bfa_timer_stop(&rport->timer);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	default:
@@ -370,9 +386,9 @@ bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
 
 	switch (event) {
 	case RPSM_EVENT_ACCEPTED:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		rport->plogi_retries = 0;
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_RCVD:
@@ -397,6 +413,7 @@ bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
 					BFA_FCS_RETRY_TIMEOUT);
 		} else {
 			bfa_stats(rport->port, rport_del_max_plogi_retry);
+			rport->old_pid = rport->pid;
 			rport->pid = 0;
 			bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
 			bfa_timer_start(rport->fcs->bfa, &rport->timer,
@@ -443,13 +460,77 @@ bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
+		break;
+
+	default:
+		bfa_sm_fault(rport->fcs, event);
+	}
+}
+
+/*
+ * PLOGI is done. Await bfa_fcs_itnim to ascertain the scsi function
+ */
+static void
+bfa_fcs_rport_sm_fc4_fcs_online(struct bfa_fcs_rport_s *rport,
+				enum rport_event event)
+{
+	bfa_trc(rport->fcs, rport->pwwn);
+	bfa_trc(rport->fcs, rport->pid);
+	bfa_trc(rport->fcs, event);
+
+	switch (event) {
+	case RPSM_EVENT_FC4_FCS_ONLINE:
+		if (rport->scsi_function == BFA_RPORT_INITIATOR) {
+			if (!BFA_FCS_PID_IS_WKA(rport->pid))
+				bfa_fcs_rpf_rport_online(rport);
+			bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
+			break;
+		}
+
+		if (!rport->bfa_rport)
+			rport->bfa_rport =
+				bfa_rport_create(rport->fcs->bfa, rport);
+
+		if (rport->bfa_rport) {
+			bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+			bfa_fcs_rport_hal_online(rport);
+		} else {
+			bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
+			bfa_fcs_rport_fcs_offline_action(rport);
+		}
+		break;
+
+	case RPSM_EVENT_PLOGI_RCVD:
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
+		rport->plogi_pending = BFA_TRUE;
+		bfa_fcs_rport_fcs_offline_action(rport);
+		break;
+
+	case RPSM_EVENT_PLOGI_COMP:
+	case RPSM_EVENT_LOGO_IMP:
+	case RPSM_EVENT_ADDRESS_CHANGE:
+	case RPSM_EVENT_SCN:
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
+		bfa_fcs_rport_fcs_offline_action(rport);
+		break;
+
+	case RPSM_EVENT_LOGO_RCVD:
+	case RPSM_EVENT_PRLO_RCVD:
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
+		bfa_fcs_rport_fcs_offline_action(rport);
+		break;
+
+	case RPSM_EVENT_DELETE:
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
+		bfa_fcs_rport_fcs_offline_action(rport);
 		break;
 
 	default:
 		bfa_sm_fault(rport->fcs, event);
+		break;
 	}
 }
 
@@ -468,41 +549,34 @@ bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport,
 	switch (event) {
 	case RPSM_EVENT_HCB_ONLINE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
-		bfa_fcs_rport_online_action(rport);
+		bfa_fcs_rport_hal_online_action(rport);
 		break;
 
-	case RPSM_EVENT_PRLO_RCVD:
 	case RPSM_EVENT_PLOGI_COMP:
 		break;
 
+	case RPSM_EVENT_PRLO_RCVD:
 	case RPSM_EVENT_LOGO_RCVD:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
+		bfa_fcs_rport_fcs_offline_action(rport);
 		break;
 
+	case RPSM_EVENT_SCN:
 	case RPSM_EVENT_LOGO_IMP:
 	case RPSM_EVENT_ADDRESS_CHANGE:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
+		bfa_fcs_rport_fcs_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_PLOGI_RCVD:
 		rport->plogi_pending = BFA_TRUE;
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
+		bfa_fcs_rport_fcs_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_DELETE:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
-		break;
-
-	case RPSM_EVENT_SCN:
-		/*
-		 * @todo
-		 * Ignore SCN - PLOGI just completed, FC-4 login should detect
-		 * device failures.
-		 */
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
+		bfa_fcs_rport_fcs_offline_action(rport);
 		break;
 
 	default:
@@ -537,18 +611,18 @@ bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event)
 	case RPSM_EVENT_LOGO_IMP:
 	case RPSM_EVENT_ADDRESS_CHANGE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_DELETE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_RCVD:
 	case RPSM_EVENT_PRLO_RCVD:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
@@ -579,7 +653,7 @@ bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
 	case RPSM_EVENT_DELETE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_SCN:
@@ -592,24 +666,16 @@ bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport,
 	case RPSM_EVENT_PRLO_RCVD:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_IMP:
-		rport->pid = 0;
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
-		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_timer_start(rport->fcs->bfa, &rport->timer,
-				bfa_fcs_rport_timeout, rport,
-				bfa_fcs_rport_del_timeout);
-		break;
-
 	case RPSM_EVENT_PLOGI_RCVD:
 	case RPSM_EVENT_ADDRESS_CHANGE:
 	case RPSM_EVENT_PLOGI_COMP:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	default:
@@ -642,14 +708,14 @@ bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
 			bfa_fcs_rport_send_nsdisc(rport, NULL);
 		} else {
 			bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
-			bfa_fcs_rport_offline_action(rport);
+			bfa_fcs_rport_hal_offline_action(rport);
 		}
 		break;
 
 	case RPSM_EVENT_DELETE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_SCN:
@@ -659,7 +725,7 @@ bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
 	case RPSM_EVENT_PRLO_RCVD:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
@@ -668,7 +734,7 @@ bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event)
 	case RPSM_EVENT_LOGO_IMP:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	default:
@@ -696,21 +762,21 @@ bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
 	case RPSM_EVENT_DELETE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_IMP:
 	case RPSM_EVENT_ADDRESS_CHANGE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_RCVD:
 	case RPSM_EVENT_PRLO_RCVD:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_SCN:
@@ -719,7 +785,7 @@ bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport,
 	case RPSM_EVENT_PLOGI_RCVD:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	default:
@@ -756,13 +822,13 @@ bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event)
 	case RPSM_EVENT_FAILED:
 	case RPSM_EVENT_ADDRESS_CHANGE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_DELETE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_SCN:
@@ -774,14 +840,14 @@ bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event)
 	case RPSM_EVENT_LOGO_IMP:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_RCVD:
 	case RPSM_EVENT_PRLO_RCVD:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_offline_action(rport);
+		bfa_fcs_rport_hal_offline_action(rport);
 		break;
 
 	default:
@@ -803,13 +869,19 @@ bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport,
 	switch (event) {
 	case RPSM_EVENT_FC4_OFFLINE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+		bfa_fcs_rport_hal_offline(rport);
 		break;
 
 	case RPSM_EVENT_DELETE:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
+		if (rport->pid && (rport->prlo == BFA_TRUE))
+			bfa_fcs_rport_send_prlo_acc(rport);
+		if (rport->pid && (rport->prlo == BFA_FALSE))
+			bfa_fcs_rport_send_logo_acc(rport);
+
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_off_delete);
 		break;
 
+	case RPSM_EVENT_HCB_ONLINE:
 	case RPSM_EVENT_LOGO_RCVD:
 	case RPSM_EVENT_PRLO_RCVD:
 	case RPSM_EVENT_ADDRESS_CHANGE:
@@ -835,7 +907,20 @@ bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
 	switch (event) {
 	case RPSM_EVENT_FC4_OFFLINE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+		bfa_fcs_rport_hal_offline(rport);
+		break;
+
+	case RPSM_EVENT_LOGO_RCVD:
+		bfa_fcs_rport_send_logo_acc(rport);
+	case RPSM_EVENT_PRLO_RCVD:
+		if (rport->prlo == BFA_TRUE)
+			bfa_fcs_rport_send_prlo_acc(rport);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_off_delete);
+		break;
+
+	case RPSM_EVENT_HCB_ONLINE:
+	case RPSM_EVENT_DELETE:
+		/* Rport is being deleted */
 		break;
 
 	default:
@@ -857,13 +942,23 @@ bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport,
 	switch (event) {
 	case RPSM_EVENT_FC4_OFFLINE:
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline);
-		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+		bfa_fcs_rport_hal_offline(rport);
 		break;
 
-	case RPSM_EVENT_SCN:
-	case RPSM_EVENT_LOGO_IMP:
 	case RPSM_EVENT_LOGO_RCVD:
+		/*
+		 * Rport is going offline. Just ack the logo
+		 */
+		bfa_fcs_rport_send_logo_acc(rport);
+		break;
+
 	case RPSM_EVENT_PRLO_RCVD:
+		bfa_fcs_rport_send_prlo_acc(rport);
+		break;
+
+	case RPSM_EVENT_HCB_ONLINE:
+	case RPSM_EVENT_SCN:
+	case RPSM_EVENT_LOGO_IMP:
 	case RPSM_EVENT_ADDRESS_CHANGE:
 		/*
 		 * rport is already going offline.
@@ -907,24 +1002,23 @@ bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
 		 */
 
 	case RPSM_EVENT_ADDRESS_CHANGE:
-		if (bfa_fcs_lport_is_online(rport->port)) {
-			if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
-				bfa_sm_set_state(rport,
-					bfa_fcs_rport_sm_nsdisc_sending);
-				rport->ns_retries = 0;
-				bfa_fcs_rport_send_nsdisc(rport, NULL);
-			} else {
-				bfa_sm_set_state(rport,
-					bfa_fcs_rport_sm_plogi_sending);
-				rport->plogi_retries = 0;
-				bfa_fcs_rport_send_plogi(rport, NULL);
-			}
-		} else {
+		if (!bfa_fcs_lport_is_online(rport->port)) {
 			rport->pid = 0;
 			bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
 			bfa_timer_start(rport->fcs->bfa, &rport->timer,
 					bfa_fcs_rport_timeout, rport,
 					bfa_fcs_rport_del_timeout);
+			break;
+		}
+		if (bfa_fcs_fabric_is_switched(rport->port->fabric)) {
+			bfa_sm_set_state(rport,
+				bfa_fcs_rport_sm_nsdisc_sending);
+			rport->ns_retries = 0;
+			bfa_fcs_rport_send_nsdisc(rport, NULL);
+		} else {
+			bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending);
+			rport->plogi_retries = 0;
+			bfa_fcs_rport_send_plogi(rport, NULL);
 		}
 		break;
 
@@ -1001,7 +1095,11 @@ bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_DELETE:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_delete_pending);
+		if (rport->pid && (rport->prlo == BFA_TRUE))
+			bfa_fcs_rport_send_prlo_acc(rport);
+		if (rport->pid && (rport->prlo == BFA_FALSE))
+			bfa_fcs_rport_send_logo_acc(rport);
 		break;
 
 	case RPSM_EVENT_LOGO_IMP:
@@ -1040,7 +1138,14 @@ bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_LOGO_RCVD:
+		bfa_fcs_rport_send_logo_acc(rport);
 	case RPSM_EVENT_PRLO_RCVD:
+		if (rport->prlo == BFA_TRUE)
+			bfa_fcs_rport_send_prlo_acc(rport);
+
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_delete_pending);
+		break;
+
 	case RPSM_EVENT_ADDRESS_CHANGE:
 		break;
 
@@ -1072,7 +1177,11 @@ bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_LOGO_RCVD:
+		bfa_fcs_rport_send_logo_acc(rport);
 	case RPSM_EVENT_PRLO_RCVD:
+		if (rport->prlo == BFA_TRUE)
+			bfa_fcs_rport_send_prlo_acc(rport);
+
 		bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
 		bfa_fcs_rport_free(rport);
@@ -1126,9 +1235,9 @@ bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event)
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		bfa_timer_stop(&rport->timer);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	case RPSM_EVENT_PLOGI_SEND:
@@ -1190,9 +1299,9 @@ bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	default:
@@ -1254,9 +1363,9 @@ bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		bfa_timer_stop(&rport->timer);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	default:
@@ -1296,6 +1405,7 @@ bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
 				 bfa_fcs_rport_sm_nsdisc_sending);
 			bfa_fcs_rport_send_nsdisc(rport, NULL);
 		} else {
+			rport->old_pid = rport->pid;
 			rport->pid = 0;
 			bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline);
 			bfa_timer_start(rport->fcs->bfa, &rport->timer,
@@ -1343,9 +1453,9 @@ bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
 		break;
 
 	case RPSM_EVENT_PLOGI_COMP:
-		bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_fcs_online);
 		bfa_fcxp_discard(rport->fcxp);
-		bfa_fcs_rport_hal_online(rport);
+		bfa_fcs_rport_fcs_online_action(rport);
 		break;
 
 	default:
@@ -1353,7 +1463,63 @@ bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport,
 	}
 }
 
+/*
+ * Rport needs to be deleted
+ * waiting for ITNIM clean up to finish
+ */
+static void
+bfa_fcs_rport_sm_fc4_off_delete(struct bfa_fcs_rport_s *rport,
+				enum rport_event event)
+{
+	bfa_trc(rport->fcs, rport->pwwn);
+	bfa_trc(rport->fcs, rport->pid);
+	bfa_trc(rport->fcs, event);
 
+	switch (event) {
+	case RPSM_EVENT_FC4_OFFLINE:
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_delete_pending);
+		bfa_fcs_rport_hal_offline(rport);
+		break;
+
+	case RPSM_EVENT_DELETE:
+	case RPSM_EVENT_PLOGI_RCVD:
+		/* Ignore these events */
+		break;
+
+	default:
+		bfa_sm_fault(rport->fcs, event);
+		break;
+	}
+}
+
+/*
+ * RPort needs to be deleted
+ * waiting for BFA/FW to finish current processing
+ */
+static void
+bfa_fcs_rport_sm_delete_pending(struct bfa_fcs_rport_s *rport,
+				enum rport_event event)
+{
+	bfa_trc(rport->fcs, rport->pwwn);
+	bfa_trc(rport->fcs, rport->pid);
+	bfa_trc(rport->fcs, event);
+
+	switch (event) {
+	case RPSM_EVENT_HCB_OFFLINE:
+		bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
+		bfa_fcs_rport_free(rport);
+		break;
+
+	case RPSM_EVENT_DELETE:
+	case RPSM_EVENT_LOGO_IMP:
+	case RPSM_EVENT_PLOGI_RCVD:
+		/* Ignore these events */
+		break;
+
+	default:
+		bfa_sm_fault(rport->fcs, event);
+	}
+}
 
 /*
  *  fcs_rport_private FCS RPORT provate functions
@@ -1370,10 +1536,11 @@ bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(rport->fcs, rport->pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
-					bfa_fcs_rport_send_plogi, rport);
+				bfa_fcs_rport_send_plogi, rport, BFA_TRUE);
 		return;
 	}
 	rport->fcxp = fcxp;
@@ -1490,10 +1657,11 @@ bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 	bfa_trc(rport->fcs, rport->pwwn);
 	bfa_trc(rport->fcs, rport->reply_oxid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
-					bfa_fcs_rport_send_plogiacc, rport);
+				bfa_fcs_rport_send_plogiacc, rport, BFA_FALSE);
 		return;
 	}
 	rport->fcxp = fcxp;
@@ -1522,10 +1690,11 @@ bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(rport->fcs, rport->pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
-					bfa_fcs_rport_send_adisc, rport);
+				bfa_fcs_rport_send_adisc, rport, BFA_TRUE);
 		return;
 	}
 	rport->fcxp = fcxp;
@@ -1585,10 +1754,11 @@ bfa_fcs_rport_send_nsdisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(rport->fcs, rport->pid);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
-					bfa_fcs_rport_send_nsdisc, rport);
+				bfa_fcs_rport_send_nsdisc, rport, BFA_TRUE);
 		return;
 	}
 	rport->fcxp = fcxp;
@@ -1741,10 +1911,11 @@ bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	port = rport->port;
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe,
-					bfa_fcs_rport_send_logo, rport);
+				bfa_fcs_rport_send_logo, rport, BFA_FALSE);
 		return;
 	}
 	rport->fcxp = fcxp;
@@ -1778,7 +1949,7 @@ bfa_fcs_rport_send_logo_acc(void *rport_cbarg)
 
 	port = rport->port;
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -1849,7 +2020,7 @@ bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport,
 		bfa_fcs_itnim_is_initiator(rport->itnim);
 	}
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -1886,7 +2057,7 @@ bfa_fcs_rport_process_rpsc(struct bfa_fcs_rport_s *rport,
 
 	speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -1920,7 +2091,7 @@ bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport,
 	 */
 	if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) {
 
-		fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+		fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 		if (!fcxp)
 			return;
 
@@ -1957,6 +2128,15 @@ bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport)
 	bfa_rport_online(rport->bfa_rport, &rport_info);
 }
 
+static void
+bfa_fcs_rport_hal_offline(struct bfa_fcs_rport_s *rport)
+{
+	if (rport->bfa_rport)
+		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_OFFLINE);
+	else
+		bfa_cb_rport_offline(rport);
+}
+
 static struct bfa_fcs_rport_s *
 bfa_fcs_rport_alloc(struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid)
 {
@@ -1967,6 +2147,11 @@ bfa_fcs_rport_alloc(struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid)
 	/*
 	 * allocate rport
 	 */
+	if (fcs->num_rport_logins >= bfa_fcs_rport_max_logins) {
+		bfa_trc(fcs, rpid);
+		return NULL;
+	}
+
 	if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv)
 		!= BFA_STATUS_OK) {
 		bfa_trc(fcs, rpid);
@@ -1981,16 +2166,9 @@ bfa_fcs_rport_alloc(struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid)
 	rport->rp_drv = rport_drv;
 	rport->pid = rpid;
 	rport->pwwn = pwwn;
+	rport->old_pid = 0;
 
-	/*
-	 * allocate BFA rport
-	 */
-	rport->bfa_rport = bfa_rport_create(port->fcs->bfa, rport);
-	if (!rport->bfa_rport) {
-		bfa_trc(fcs, rpid);
-		kfree(rport_drv);
-		return NULL;
-	}
+	rport->bfa_rport = NULL;
 
 	/*
 	 * allocate FC-4s
@@ -2001,14 +2179,13 @@ bfa_fcs_rport_alloc(struct bfa_fcs_lport_s *port, wwn_t pwwn, u32 rpid)
 		rport->itnim = bfa_fcs_itnim_create(rport);
 		if (!rport->itnim) {
 			bfa_trc(fcs, rpid);
-			bfa_sm_send_event(rport->bfa_rport,
-						BFA_RPORT_SM_DELETE);
 			kfree(rport_drv);
 			return NULL;
 		}
 	}
 
 	bfa_fcs_lport_add_rport(port, rport);
+	fcs->num_rport_logins++;
 
 	bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit);
 
@@ -2024,20 +2201,28 @@ static void
 bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport)
 {
 	struct bfa_fcs_lport_s *port = rport->port;
+	struct bfa_fcs_s *fcs = port->fcs;
 
 	/*
 	 * - delete FC-4s
 	 * - delete BFA rport
 	 * - remove from queue of rports
 	 */
+	rport->plogi_pending = BFA_FALSE;
+
 	if (bfa_fcs_lport_is_initiator(port)) {
 		bfa_fcs_itnim_delete(rport->itnim);
 		if (rport->pid != 0 && !BFA_FCS_PID_IS_WKA(rport->pid))
 			bfa_fcs_rpf_rport_offline(rport);
 	}
 
-	bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_DELETE);
+	if (rport->bfa_rport) {
+		bfa_sm_send_event(rport->bfa_rport, BFA_RPORT_SM_DELETE);
+		rport->bfa_rport = NULL;
+	}
+
 	bfa_fcs_lport_del_rport(port, rport);
+	fcs->num_rport_logins--;
 	kfree(rport->rp_drv);
 }
 
@@ -2071,7 +2256,18 @@ bfa_fcs_rport_aen_post(struct bfa_fcs_rport_s *rport,
 }
 
 static void
-bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
+bfa_fcs_rport_fcs_online_action(struct bfa_fcs_rport_s *rport)
+{
+	if ((!rport->pid) || (!rport->pwwn)) {
+		bfa_trc(rport->fcs, rport->pid);
+		bfa_sm_fault(rport->fcs, rport->pid);
+	}
+
+	bfa_sm_send_event(rport->itnim, BFA_FCS_ITNIM_SM_FCS_ONLINE);
+}
+
+static void
+bfa_fcs_rport_hal_online_action(struct bfa_fcs_rport_s *rport)
 {
 	struct bfa_fcs_lport_s *port = rport->port;
 	struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
@@ -2086,7 +2282,7 @@ bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
 	}
 
 	if (bfa_fcs_lport_is_initiator(port)) {
-		bfa_fcs_itnim_rport_online(rport->itnim);
+		bfa_fcs_itnim_brp_online(rport->itnim);
 		if (!BFA_FCS_PID_IS_WKA(rport->pid))
 			bfa_fcs_rpf_rport_online(rport);
 	};
@@ -2102,15 +2298,28 @@ bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport)
 }
 
 static void
-bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport)
+bfa_fcs_rport_fcs_offline_action(struct bfa_fcs_rport_s *rport)
+{
+	if (!BFA_FCS_PID_IS_WKA(rport->pid))
+		bfa_fcs_rpf_rport_offline(rport);
+
+	bfa_fcs_itnim_rport_offline(rport->itnim);
+}
+
+static void
+bfa_fcs_rport_hal_offline_action(struct bfa_fcs_rport_s *rport)
 {
 	struct bfa_fcs_lport_s *port = rport->port;
 	struct bfad_s *bfad = (struct bfad_s *)port->fcs->bfad;
 	char	lpwwn_buf[BFA_STRING_32];
 	char	rpwwn_buf[BFA_STRING_32];
 
+	if (!rport->bfa_rport) {
+		bfa_fcs_rport_fcs_offline_action(rport);
+		return;
+	}
+
 	rport->stats.offlines++;
-	rport->plogi_pending = BFA_FALSE;
 
 	wwn2str(lpwwn_buf, bfa_fcs_lport_get_pwwn(port));
 	wwn2str(rpwwn_buf, rport->pwwn);
@@ -2340,7 +2549,6 @@ bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport)
 	bfa_sm_send_event(rport, RPSM_EVENT_SCN);
 }
 
-
 /*
  *	brief
  *	This routine BFA callback for bfa_rport_online() call.
@@ -2508,7 +2716,7 @@ bfa_fcs_rport_send_prlo_acc(struct bfa_fcs_rport_s *rport)
 
 	bfa_trc(rport->fcs, rport->pid);
 
-	fcxp = bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(port->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 	len = fc_prlo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
@@ -2534,7 +2742,7 @@ bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs,
 
 	bfa_trc(rport->fcs, rx_fchs->s_id);
 
-	fcxp = bfa_fcs_fcxp_alloc(rport->fcs);
+	fcxp = bfa_fcs_fcxp_alloc(rport->fcs, BFA_FALSE);
 	if (!fcxp)
 		return;
 
@@ -2582,6 +2790,17 @@ bfa_fcs_rport_prlo(struct bfa_fcs_rport_s *rport, __be16 ox_id)
 	bfa_sm_send_event(rport, RPSM_EVENT_PRLO_RCVD);
 }
 
+/*
+ * Called by BFAD to set the max limit on number of bfa_fcs_rport allocation
+ * which limits number of concurrent logins to remote ports
+ */
+void
+bfa_fcs_rport_set_max_logins(u32 max_logins)
+{
+	if (max_logins > 0)
+		bfa_fcs_rport_max_logins = max_logins;
+}
+
 void
 bfa_fcs_rport_get_attr(struct bfa_fcs_rport_s *rport,
 		struct bfa_rport_attr_s *rport_attr)
@@ -2605,9 +2824,11 @@ bfa_fcs_rport_get_attr(struct bfa_fcs_rport_s *rport,
 	rport_attr->curr_speed  = rport->rpf.rpsc_speed;
 	rport_attr->assigned_speed  = rport->rpf.assigned_speed;
 
-	qos_attr.qos_priority = rport->bfa_rport->qos_attr.qos_priority;
-	qos_attr.qos_flow_id =
-		cpu_to_be32(rport->bfa_rport->qos_attr.qos_flow_id);
+	if (rport->bfa_rport) {
+		qos_attr.qos_priority = rport->bfa_rport->qos_attr.qos_priority;
+		qos_attr.qos_flow_id =
+			cpu_to_be32(rport->bfa_rport->qos_attr.qos_flow_id);
+	}
 	rport_attr->qos_attr = qos_attr;
 
 	rport_attr->trl_enforced = BFA_FALSE;
@@ -2940,10 +3161,11 @@ bfa_fcs_rpf_send_rpsc2(void *rpf_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 
 	bfa_trc(rport->fcs, rport->pwwn);
 
-	fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+	fcxp = fcxp_alloced ? fcxp_alloced :
+	       bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
 	if (!fcxp) {
 		bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &rpf->fcxp_wqe,
-					bfa_fcs_rpf_send_rpsc2, rpf);
+				bfa_fcs_rpf_send_rpsc2, rpf, BFA_TRUE);
 		return;
 	}
 	rpf->fcxp = fcxp;
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 8cdb79c2fcd..75ca8752b9f 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -92,7 +92,6 @@ static void bfa_ioc_event_notify(struct bfa_ioc_s *ioc ,
 				enum bfa_ioc_event_e event);
 static void bfa_ioc_disable_comp(struct bfa_ioc_s *ioc);
 static void bfa_ioc_lpu_stop(struct bfa_ioc_s *ioc);
-static void bfa_ioc_debug_save_ftrc(struct bfa_ioc_s *ioc);
 static void bfa_ioc_fail_notify(struct bfa_ioc_s *ioc);
 static void bfa_ioc_pf_fwmismatch(struct bfa_ioc_s *ioc);
 
@@ -599,8 +598,9 @@ bfa_ioc_sm_fail(struct bfa_ioc_s *ioc, enum ioc_event event)
 		break;
 
 	case IOC_E_HWERROR:
+	case IOC_E_HWFAILED:
 		/*
-		 * HB failure notification, ignore.
+		 * HB failure / HW error notification, ignore.
 		 */
 		break;
 	default:
@@ -632,6 +632,10 @@ bfa_ioc_sm_hwfail(struct bfa_ioc_s *ioc, enum ioc_event event)
 		bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
 		break;
 
+	case IOC_E_HWERROR:
+		/* Ignore - already in hwfail state */
+		break;
+
 	default:
 		bfa_sm_fault(ioc, event);
 	}
@@ -1455,7 +1459,7 @@ bfa_ioc_fwver_cmp(struct bfa_ioc_s *ioc, struct bfi_ioc_image_hdr_s *fwhdr)
 		bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), 0);
 
 	for (i = 0; i < BFI_IOC_MD5SUM_SZ; i++) {
-		if (fwhdr->md5sum[i] != drv_fwhdr->md5sum[i]) {
+		if (fwhdr->md5sum[i] != cpu_to_le32(drv_fwhdr->md5sum[i])) {
 			bfa_trc(ioc, i);
 			bfa_trc(ioc, fwhdr->md5sum[i]);
 			bfa_trc(ioc, drv_fwhdr->md5sum[i]);
@@ -1480,7 +1484,7 @@ bfa_ioc_fwver_valid(struct bfa_ioc_s *ioc, u32 boot_env)
 	drv_fwhdr = (struct bfi_ioc_image_hdr_s *)
 		bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), 0);
 
-	if (fwhdr.signature != drv_fwhdr->signature) {
+	if (fwhdr.signature != cpu_to_le32(drv_fwhdr->signature)) {
 		bfa_trc(ioc, fwhdr.signature);
 		bfa_trc(ioc, drv_fwhdr->signature);
 		return BFA_FALSE;
@@ -1704,7 +1708,7 @@ bfa_ioc_download_fw(struct bfa_ioc_s *ioc, u32 boot_type,
 		 * write smem
 		 */
 		bfa_mem_write(ioc->ioc_regs.smem_page_start, loff,
-			      fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)]);
+			cpu_to_le32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)]));
 
 		loff += sizeof(u32);
 
@@ -2260,6 +2264,12 @@ bfa_ioc_disable(struct bfa_ioc_s *ioc)
 	bfa_fsm_send_event(ioc, IOC_E_DISABLE);
 }
 
+void
+bfa_ioc_suspend(struct bfa_ioc_s *ioc)
+{
+	ioc->dbg_fwsave_once = BFA_TRUE;
+	bfa_fsm_send_event(ioc, IOC_E_HWERROR);
+}
 
 /*
  * Initialize memory for saving firmware trace. Driver must initialize
@@ -2269,7 +2279,7 @@ void
 bfa_ioc_debug_memclaim(struct bfa_ioc_s *ioc, void *dbg_fwsave)
 {
 	ioc->dbg_fwsave	    = dbg_fwsave;
-	ioc->dbg_fwsave_len = (ioc->iocpf.auto_recover) ? BFA_DBG_FWTRC_LEN : 0;
+	ioc->dbg_fwsave_len = BFA_DBG_FWTRC_LEN;
 }
 
 /*
@@ -2856,7 +2866,7 @@ bfa_ioc_fw_stats_clear(struct bfa_ioc_s *ioc)
 /*
  * Save firmware trace if configured.
  */
-static void
+void
 bfa_ioc_debug_save_ftrc(struct bfa_ioc_s *ioc)
 {
 	int		tlen;
@@ -5587,7 +5597,7 @@ static bfa_status_t bfa_dconf_flash_write(struct bfa_dconf_mod_s *dconf);
 static void bfa_dconf_init_cb(void *arg, bfa_status_t status);
 
 /*
- * Begining state of dconf module. Waiting for an event to start.
+ * Beginning state of dconf module. Waiting for an event to start.
  */
 static void
 bfa_dconf_sm_uninit(struct bfa_dconf_mod_s *dconf, enum bfa_dconf_event event)
diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index 1a99d4b5b50..b2856f96567 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -530,7 +530,7 @@ struct bfa_diag_results_fwping {
 
 struct bfa_diag_qtest_result_s {
 	u32	status;
-	u16	count;	/* sucessful queue test count */
+	u16	count;	/* successful queue test count */
 	u8	queue;
 	u8	rsvd;	/* 64-bit align */
 };
@@ -820,6 +820,7 @@ void bfa_ioc_attach(struct bfa_ioc_s *ioc, void *bfa,
 		struct bfa_ioc_cbfn_s *cbfn, struct bfa_timer_mod_s *timer_mod);
 void bfa_ioc_auto_recover(bfa_boolean_t auto_recover);
 void bfa_ioc_detach(struct bfa_ioc_s *ioc);
+void bfa_ioc_suspend(struct bfa_ioc_s *ioc);
 void bfa_ioc_pci_init(struct bfa_ioc_s *ioc, struct bfa_pcidev_s *pcidev,
 		enum bfi_pcifn_class clscode);
 void bfa_ioc_mem_claim(struct bfa_ioc_s *ioc,  u8 *dm_kva, u64 dm_pa);
@@ -866,6 +867,7 @@ bfa_boolean_t bfa_ioc_fwver_cmp(struct bfa_ioc_s *ioc,
 void bfa_ioc_aen_post(struct bfa_ioc_s *ioc, enum bfa_ioc_aen_event event);
 bfa_status_t bfa_ioc_fw_stats_get(struct bfa_ioc_s *ioc, void *stats);
 bfa_status_t bfa_ioc_fw_stats_clear(struct bfa_ioc_s *ioc);
+void bfa_ioc_debug_save_ftrc(struct bfa_ioc_s *ioc);
 
 /*
  * asic block configuration related APIs
diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
index 2d36e482383..189fff71e3c 100644
--- a/drivers/scsi/bfa/bfa_modules.h
+++ b/drivers/scsi/bfa/bfa_modules.h
@@ -121,6 +121,7 @@ struct bfa_s {
 	bfa_boolean_t		fcs;		/*  FCS is attached to BFA */
 	struct bfa_msix_s	msix;
 	int			bfa_aen_seq;
+	bfa_boolean_t		intr_enabled;	/*  Status of interrupts */
 };
 
 extern bfa_boolean_t bfa_auto_recover;
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 2e856e6710f..b2538d60db3 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -440,9 +440,11 @@ claim_fcxps_mem(struct bfa_fcxp_mod_s *mod)
 	fcxp = (struct bfa_fcxp_s *) bfa_mem_kva_curp(mod);
 	memset(fcxp, 0, sizeof(struct bfa_fcxp_s) * mod->num_fcxps);
 
-	INIT_LIST_HEAD(&mod->fcxp_free_q);
+	INIT_LIST_HEAD(&mod->fcxp_req_free_q);
+	INIT_LIST_HEAD(&mod->fcxp_rsp_free_q);
 	INIT_LIST_HEAD(&mod->fcxp_active_q);
-	INIT_LIST_HEAD(&mod->fcxp_unused_q);
+	INIT_LIST_HEAD(&mod->fcxp_req_unused_q);
+	INIT_LIST_HEAD(&mod->fcxp_rsp_unused_q);
 
 	mod->fcxp_list = fcxp;
 
@@ -450,7 +452,14 @@ claim_fcxps_mem(struct bfa_fcxp_mod_s *mod)
 		fcxp->fcxp_mod = mod;
 		fcxp->fcxp_tag = i;
 
-		list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
+		if (i < (mod->num_fcxps / 2)) {
+			list_add_tail(&fcxp->qe, &mod->fcxp_req_free_q);
+			fcxp->req_rsp = BFA_TRUE;
+		} else {
+			list_add_tail(&fcxp->qe, &mod->fcxp_rsp_free_q);
+			fcxp->req_rsp = BFA_FALSE;
+		}
+
 		bfa_reqq_winit(&fcxp->reqq_wqe, bfa_fcxp_qresume, fcxp);
 		fcxp->reqq_waiting = BFA_FALSE;
 
@@ -514,7 +523,8 @@ bfa_fcxp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 	if (!cfg->drvcfg.min_cfg)
 		mod->rsp_pld_sz = BFA_FCXP_MAX_LBUF_SZ;
 
-	INIT_LIST_HEAD(&mod->wait_q);
+	INIT_LIST_HEAD(&mod->req_wait_q);
+	INIT_LIST_HEAD(&mod->rsp_wait_q);
 
 	claim_fcxps_mem(mod);
 }
@@ -542,7 +552,8 @@ bfa_fcxp_iocdisable(struct bfa_s *bfa)
 	struct list_head	      *qe, *qen;
 
 	/* Enqueue unused fcxp resources to free_q */
-	list_splice_tail_init(&mod->fcxp_unused_q, &mod->fcxp_free_q);
+	list_splice_tail_init(&mod->fcxp_req_unused_q, &mod->fcxp_req_free_q);
+	list_splice_tail_init(&mod->fcxp_rsp_unused_q, &mod->fcxp_rsp_free_q);
 
 	list_for_each_safe(qe, qen, &mod->fcxp_active_q) {
 		fcxp = (struct bfa_fcxp_s *) qe;
@@ -559,11 +570,14 @@ bfa_fcxp_iocdisable(struct bfa_s *bfa)
 }
 
 static struct bfa_fcxp_s *
-bfa_fcxp_get(struct bfa_fcxp_mod_s *fm)
+bfa_fcxp_get(struct bfa_fcxp_mod_s *fm, bfa_boolean_t req)
 {
 	struct bfa_fcxp_s *fcxp;
 
-	bfa_q_deq(&fm->fcxp_free_q, &fcxp);
+	if (req)
+		bfa_q_deq(&fm->fcxp_req_free_q, &fcxp);
+	else
+		bfa_q_deq(&fm->fcxp_rsp_free_q, &fcxp);
 
 	if (fcxp)
 		list_add_tail(&fcxp->qe, &fm->fcxp_active_q);
@@ -642,7 +656,11 @@ bfa_fcxp_put(struct bfa_fcxp_s *fcxp)
 	struct bfa_fcxp_mod_s *mod = fcxp->fcxp_mod;
 	struct bfa_fcxp_wqe_s *wqe;
 
-	bfa_q_deq(&mod->wait_q, &wqe);
+	if (fcxp->req_rsp)
+		bfa_q_deq(&mod->req_wait_q, &wqe);
+	else
+		bfa_q_deq(&mod->rsp_wait_q, &wqe);
+
 	if (wqe) {
 		bfa_trc(mod->bfa, fcxp->fcxp_tag);
 
@@ -657,7 +675,11 @@ bfa_fcxp_put(struct bfa_fcxp_s *fcxp)
 
 	WARN_ON(!bfa_q_is_on_q(&mod->fcxp_active_q, fcxp));
 	list_del(&fcxp->qe);
-	list_add_tail(&fcxp->qe, &mod->fcxp_free_q);
+
+	if (fcxp->req_rsp)
+		list_add_tail(&fcxp->qe, &mod->fcxp_req_free_q);
+	else
+		list_add_tail(&fcxp->qe, &mod->fcxp_rsp_free_q);
 }
 
 static void
@@ -900,21 +922,23 @@ bfa_fcxp_queue(struct bfa_fcxp_s *fcxp, struct bfi_fcxp_send_req_s *send_req)
  *				Address (given the sge index).
  * @param[in]	get_rsp_sglen	function ptr to be called to get a response SG
  *				len (given the sge index).
+ * @param[in]	req		Allocated FCXP is used to send req or rsp?
+ *				request - BFA_TRUE, response - BFA_FALSE
  *
  * @return FCXP instance. NULL on failure.
  */
 struct bfa_fcxp_s *
-bfa_fcxp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
-	       int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
-	       bfa_fcxp_get_sglen_t req_sglen_cbfn,
-	       bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
-	       bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
+bfa_fcxp_req_rsp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
+		int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
+		bfa_fcxp_get_sglen_t req_sglen_cbfn,
+		bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
+		bfa_fcxp_get_sglen_t rsp_sglen_cbfn, bfa_boolean_t req)
 {
 	struct bfa_fcxp_s *fcxp = NULL;
 
 	WARN_ON(bfa == NULL);
 
-	fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa));
+	fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa), req);
 	if (fcxp == NULL)
 		return NULL;
 
@@ -1071,17 +1095,20 @@ bfa_fcxp_abort(struct bfa_fcxp_s *fcxp)
 }
 
 void
-bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
+bfa_fcxp_req_rsp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
 	       bfa_fcxp_alloc_cbfn_t alloc_cbfn, void *alloc_cbarg,
 	       void *caller, int nreq_sgles,
 	       int nrsp_sgles, bfa_fcxp_get_sgaddr_t req_sga_cbfn,
 	       bfa_fcxp_get_sglen_t req_sglen_cbfn,
 	       bfa_fcxp_get_sgaddr_t rsp_sga_cbfn,
-	       bfa_fcxp_get_sglen_t rsp_sglen_cbfn)
+	       bfa_fcxp_get_sglen_t rsp_sglen_cbfn, bfa_boolean_t req)
 {
 	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
 
-	WARN_ON(!list_empty(&mod->fcxp_free_q));
+	if (req)
+		WARN_ON(!list_empty(&mod->fcxp_req_free_q));
+	else
+		WARN_ON(!list_empty(&mod->fcxp_rsp_free_q));
 
 	wqe->alloc_cbfn = alloc_cbfn;
 	wqe->alloc_cbarg = alloc_cbarg;
@@ -1094,7 +1121,10 @@ bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
 	wqe->rsp_sga_cbfn = rsp_sga_cbfn;
 	wqe->rsp_sglen_cbfn = rsp_sglen_cbfn;
 
-	list_add_tail(&wqe->qe, &mod->wait_q);
+	if (req)
+		list_add_tail(&wqe->qe, &mod->req_wait_q);
+	else
+		list_add_tail(&wqe->qe, &mod->rsp_wait_q);
 }
 
 void
@@ -1102,7 +1132,8 @@ bfa_fcxp_walloc_cancel(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe)
 {
 	struct bfa_fcxp_mod_s *mod = BFA_FCXP_MOD(bfa);
 
-	WARN_ON(!bfa_q_is_on_q(&mod->wait_q, wqe));
+	WARN_ON(!bfa_q_is_on_q(&mod->req_wait_q, wqe) ||
+		!bfa_q_is_on_q(&mod->rsp_wait_q, wqe));
 	list_del(&wqe->qe);
 }
 
@@ -1153,8 +1184,13 @@ bfa_fcxp_res_recfg(struct bfa_s *bfa, u16 num_fcxp_fw)
 	int	i;
 
 	for (i = 0; i < (mod->num_fcxps - num_fcxp_fw); i++) {
-		bfa_q_deq_tail(&mod->fcxp_free_q, &qe);
-		list_add_tail(qe, &mod->fcxp_unused_q);
+		if (i < ((mod->num_fcxps - num_fcxp_fw) / 2)) {
+			bfa_q_deq_tail(&mod->fcxp_req_free_q, &qe);
+			list_add_tail(qe, &mod->fcxp_req_unused_q);
+		} else {
+			bfa_q_deq_tail(&mod->fcxp_rsp_free_q, &qe);
+			list_add_tail(qe, &mod->fcxp_rsp_unused_q);
+		}
 	}
 }
 
@@ -1404,11 +1440,11 @@ bfa_lps_sm_logout(struct bfa_lps_s *lps, enum bfa_lps_event event)
 
 	switch (event) {
 	case BFA_LPS_SM_FWRSP:
+	case BFA_LPS_SM_OFFLINE:
 		bfa_sm_set_state(lps, bfa_lps_sm_init);
 		bfa_lps_logout_comp(lps);
 		break;
 
-	case BFA_LPS_SM_OFFLINE:
 	case BFA_LPS_SM_DELETE:
 		bfa_sm_set_state(lps, bfa_lps_sm_init);
 		break;
@@ -1786,6 +1822,8 @@ bfa_lps_logout_comp_cb(void *arg, bfa_boolean_t complete)
 
 	if (lps->fdisc)
 		bfa_cb_lps_fdisclogo_comp(lps->bfa->bfad, lps->uarg);
+	else
+		bfa_cb_lps_flogo_comp(lps->bfa->bfad, lps->uarg);
 }
 
 /*
@@ -4237,6 +4275,10 @@ bfa_rport_sm_offline(struct bfa_rport_s *rp, enum bfa_rport_event event)
 		bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
 		break;
 
+	case BFA_RPORT_SM_OFFLINE:
+		bfa_rport_offline_cb(rp);
+		break;
+
 	default:
 		bfa_stats(rp, sm_off_unexp);
 		bfa_sm_fault(rp->bfa, event);
@@ -4353,6 +4395,7 @@ bfa_rport_sm_offline_pending(struct bfa_rport_s *rp,
 	case BFA_RPORT_SM_HWFAIL:
 		bfa_stats(rp, sm_offp_hwf);
 		bfa_sm_set_state(rp, bfa_rport_sm_iocdisable);
+		bfa_rport_offline_cb(rp);
 		break;
 
 	default:
@@ -4731,8 +4774,10 @@ bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed)
 	WARN_ON(speed == 0);
 	WARN_ON(speed == BFA_PORT_SPEED_AUTO);
 
-	rport->rport_info.speed = speed;
-	bfa_sm_send_event(rport, BFA_RPORT_SM_SET_SPEED);
+	if (rport) {
+		rport->rport_info.speed = speed;
+		bfa_sm_send_event(rport, BFA_RPORT_SM_SET_SPEED);
+	}
 }
 
 /* Set Rport LUN Mask */
diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h
index f3006756463..1abcf7c5166 100644
--- a/drivers/scsi/bfa/bfa_svc.h
+++ b/drivers/scsi/bfa/bfa_svc.h
@@ -97,10 +97,13 @@ struct bfa_fcxp_mod_s {
 	struct bfa_s      *bfa;		/* backpointer to BFA */
 	struct bfa_fcxp_s *fcxp_list;	/* array of FCXPs */
 	u16	num_fcxps;	/* max num FCXP requests */
-	struct list_head  fcxp_free_q;	/* free FCXPs */
-	struct list_head  fcxp_active_q;	/* active FCXPs */
-	struct list_head  wait_q;		/* wait queue for free fcxp */
-	struct list_head fcxp_unused_q; /* unused fcxps */
+	struct list_head fcxp_req_free_q; /* free FCXPs used for sending req */
+	struct list_head fcxp_rsp_free_q; /* free FCXPs used for sending req */
+	struct list_head fcxp_active_q;	/* active FCXPs */
+	struct list_head req_wait_q;	/* wait queue for free req_fcxp */
+	struct list_head rsp_wait_q;	/* wait queue for free rsp_fcxp */
+	struct list_head fcxp_req_unused_q;	/* unused req_fcxps */
+	struct list_head fcxp_rsp_unused_q;	/* unused rsp_fcxps */
 	u32	req_pld_sz;
 	u32	rsp_pld_sz;
 	struct bfa_mem_dma_s dma_seg[BFA_FCXP_DMA_SEGS];
@@ -197,6 +200,7 @@ struct bfa_fcxp_s {
 	struct bfa_cb_qe_s    hcb_qe;	/*  comp: callback qelem */
 	struct bfa_reqq_wait_s	reqq_wqe;
 	bfa_boolean_t	reqq_waiting;
+	bfa_boolean_t	req_rsp;	/* Used to track req/rsp fcxp */
 };
 
 struct bfa_fcxp_wqe_s {
@@ -586,20 +590,22 @@ void	bfa_rport_unset_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
 /*
  * bfa fcxp API functions
  */
-struct bfa_fcxp_s *bfa_fcxp_alloc(void *bfad_fcxp, struct bfa_s *bfa,
+struct bfa_fcxp_s *bfa_fcxp_req_rsp_alloc(void *bfad_fcxp, struct bfa_s *bfa,
 				  int nreq_sgles, int nrsp_sgles,
 				  bfa_fcxp_get_sgaddr_t get_req_sga,
 				  bfa_fcxp_get_sglen_t get_req_sglen,
 				  bfa_fcxp_get_sgaddr_t get_rsp_sga,
-				  bfa_fcxp_get_sglen_t get_rsp_sglen);
-void bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
+				  bfa_fcxp_get_sglen_t get_rsp_sglen,
+				  bfa_boolean_t req);
+void bfa_fcxp_req_rsp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
 				bfa_fcxp_alloc_cbfn_t alloc_cbfn,
 				void *cbarg, void *bfad_fcxp,
 				int nreq_sgles, int nrsp_sgles,
 				bfa_fcxp_get_sgaddr_t get_req_sga,
 				bfa_fcxp_get_sglen_t get_req_sglen,
 				bfa_fcxp_get_sgaddr_t get_rsp_sga,
-				bfa_fcxp_get_sglen_t get_rsp_sglen);
+				bfa_fcxp_get_sglen_t get_rsp_sglen,
+				bfa_boolean_t req);
 void bfa_fcxp_walloc_cancel(struct bfa_s *bfa,
 			    struct bfa_fcxp_wqe_s *wqe);
 void bfa_fcxp_discard(struct bfa_fcxp_s *fcxp);
@@ -658,6 +664,7 @@ u8 bfa_lps_get_fwtag(struct bfa_s *bfa, u8 lp_tag);
 u32 bfa_lps_get_base_pid(struct bfa_s *bfa);
 u8 bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid);
 void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status);
+void bfa_cb_lps_flogo_comp(void *bfad, void *uarg);
 void bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status);
 void bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg);
 void bfa_cb_lps_cvl_event(void *bfad, void *uarg);
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 2c8f0c71307..c37494916a1 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -57,6 +57,7 @@ int		pcie_max_read_reqsz;
 int		bfa_debugfs_enable = 1;
 int		msix_disable_cb = 0, msix_disable_ct = 0;
 int		max_xfer_size = BFAD_MAX_SECTORS >> 1;
+int		max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
 
 /* Firmware releated */
 u32	bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
@@ -148,6 +149,8 @@ MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
 		" Range[64k|128k|256k|512k|1024k|2048k]");
+module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
 
 static void
 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
@@ -736,6 +739,9 @@ bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 		}
 	}
 
+	/* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
+	pci_enable_pcie_error_reporting(pdev);
+
 	bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 	bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 
@@ -806,6 +812,8 @@ bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 		}
 	}
 
+	pci_save_state(pdev);
+
 	return 0;
 
 out_release_region:
@@ -822,6 +830,8 @@ bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 	pci_iounmap(pdev, bfad->pci_bar0_kva);
 	pci_iounmap(pdev, bfad->pci_bar2_kva);
 	pci_release_regions(pdev);
+	/* Disable PCIE Advanced Error Recovery (AER) */
+	pci_disable_pcie_error_reporting(pdev);
 	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);
 }
@@ -1258,6 +1268,16 @@ bfad_setup_intr(struct bfad_s *bfad)
 
 		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
 		if (error) {
+			/* In CT1 & CT2, try to allocate just one vector */
+			if (bfa_asic_id_ctc(pdev->device)) {
+				printk(KERN_WARNING "bfa %s: trying one msix "
+				       "vector failed to allocate %d[%d]\n",
+				       bfad->pci_name, bfad->nvec, error);
+				bfad->nvec = 1;
+				error = pci_enable_msix(bfad->pcidev,
+						msix_entries, bfad->nvec);
+			}
+
 			/*
 			 * Only error number of vector is available.
 			 * We don't have a mechanism to map multiple
@@ -1267,12 +1287,13 @@ bfad_setup_intr(struct bfad_s *bfad)
 			 *  vectors. Linux doesn't duplicate vectors
 			 * in the MSIX table for this case.
 			 */
-
-			printk(KERN_WARNING "bfad%d: "
-				"pci_enable_msix failed (%d),"
-				" use line based.\n", bfad->inst_no, error);
-
-			goto line_based;
+			if (error) {
+				printk(KERN_WARNING "bfad%d: "
+				       "pci_enable_msix failed (%d), "
+				       "use line based.\n",
+					bfad->inst_no, error);
+				goto line_based;
+			}
 		}
 
 		/* Disable INTX in MSI-X mode */
@@ -1470,6 +1491,197 @@ bfad_pci_remove(struct pci_dev *pdev)
 	kfree(bfad);
 }
 
+/*
+ * PCI Error Recovery entry, error detected.
+ */
+static pci_ers_result_t
+bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+{
+	struct bfad_s *bfad = pci_get_drvdata(pdev);
+	unsigned long	flags;
+	pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
+
+	dev_printk(KERN_ERR, &pdev->dev,
+		   "error detected state: %d - flags: 0x%x\n",
+		   state, bfad->bfad_flags);
+
+	switch (state) {
+	case pci_channel_io_normal: /* non-fatal error */
+		spin_lock_irqsave(&bfad->bfad_lock, flags);
+		bfad->bfad_flags &= ~BFAD_EEH_BUSY;
+		/* Suspend/fail all bfa operations */
+		bfa_ioc_suspend(&bfad->bfa.ioc);
+		spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+		del_timer_sync(&bfad->hal_tmo);
+		ret = PCI_ERS_RESULT_CAN_RECOVER;
+		break;
+	case pci_channel_io_frozen: /* fatal error */
+		init_completion(&bfad->comp);
+		spin_lock_irqsave(&bfad->bfad_lock, flags);
+		bfad->bfad_flags |= BFAD_EEH_BUSY;
+		/* Suspend/fail all bfa operations */
+		bfa_ioc_suspend(&bfad->bfa.ioc);
+		bfa_fcs_stop(&bfad->bfa_fcs);
+		spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+		wait_for_completion(&bfad->comp);
+
+		bfad_remove_intr(bfad);
+		del_timer_sync(&bfad->hal_tmo);
+		pci_disable_device(pdev);
+		ret = PCI_ERS_RESULT_NEED_RESET;
+		break;
+	case pci_channel_io_perm_failure: /* PCI Card is DEAD */
+		spin_lock_irqsave(&bfad->bfad_lock, flags);
+		bfad->bfad_flags |= BFAD_EEH_BUSY |
+				    BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
+		spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+		/* If the error_detected handler is called with the reason
+		 * pci_channel_io_perm_failure - it will subsequently call
+		 * pci_remove() entry point to remove the pci device from the
+		 * system - So defer the cleanup to pci_remove(); cleaning up
+		 * here causes inconsistent state during pci_remove().
+		 */
+		ret = PCI_ERS_RESULT_DISCONNECT;
+		break;
+	default:
+		WARN_ON(1);
+	}
+
+	return ret;
+}
+
+int
+restart_bfa(struct bfad_s *bfad)
+{
+	unsigned long flags;
+	struct pci_dev *pdev = bfad->pcidev;
+
+	bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
+		   &bfad->meminfo, &bfad->hal_pcidev);
+
+	/* Enable Interrupt and wait bfa_init completion */
+	if (bfad_setup_intr(bfad)) {
+		dev_printk(KERN_WARNING, &pdev->dev,
+			   "%s: bfad_setup_intr failed\n", bfad->pci_name);
+		bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED);
+		return -1;
+	}
+
+	init_completion(&bfad->comp);
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	bfa_iocfc_init(&bfad->bfa);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+	/* Set up interrupt handler for each vectors */
+	if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
+	    bfad_install_msix_handler(bfad))
+		dev_printk(KERN_WARNING, &pdev->dev,
+			   "%s: install_msix failed.\n", bfad->pci_name);
+
+	bfad_init_timer(bfad);
+	wait_for_completion(&bfad->comp);
+	bfad_drv_start(bfad);
+
+	return 0;
+}
+
+/*
+ * PCI Error Recovery entry, re-initialize the chip.
+ */
+static pci_ers_result_t
+bfad_pci_slot_reset(struct pci_dev *pdev)
+{
+	struct bfad_s *bfad = pci_get_drvdata(pdev);
+	u8 byte;
+
+	dev_printk(KERN_ERR, &pdev->dev,
+		   "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
+
+	if (pci_enable_device(pdev)) {
+		dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
+			   "PCI device after reset.\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	pci_restore_state(pdev);
+
+	/*
+	 * Read some byte (e.g. DMA max. payload size which can't
+	 * be 0xff any time) to make sure - we did not hit another PCI error
+	 * in the middle of recovery. If we did, then declare permanent failure.
+	 */
+	pci_read_config_byte(pdev, 0x68, &byte);
+	if (byte == 0xff) {
+		dev_printk(KERN_ERR, &pdev->dev,
+			   "slot_reset failed ... got another PCI error !\n");
+		goto out_disable_device;
+	}
+
+	pci_save_state(pdev);
+	pci_set_master(pdev);
+
+	if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0)
+		if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0)
+			goto out_disable_device;
+
+	pci_cleanup_aer_uncorrect_error_status(pdev);
+
+	if (restart_bfa(bfad) == -1)
+		goto out_disable_device;
+
+	pci_enable_pcie_error_reporting(pdev);
+	dev_printk(KERN_WARNING, &pdev->dev,
+		   "slot_reset completed  flags: 0x%x!\n", bfad->bfad_flags);
+
+	return PCI_ERS_RESULT_RECOVERED;
+
+out_disable_device:
+	pci_disable_device(pdev);
+	return PCI_ERS_RESULT_DISCONNECT;
+}
+
+static pci_ers_result_t
+bfad_pci_mmio_enabled(struct pci_dev *pdev)
+{
+	unsigned long	flags;
+	struct bfad_s *bfad = pci_get_drvdata(pdev);
+
+	dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
+
+	/* Fetch FW diagnostic information */
+	bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
+
+	/* Cancel all pending IOs */
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	init_completion(&bfad->comp);
+	bfa_fcs_stop(&bfad->bfa_fcs);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+	wait_for_completion(&bfad->comp);
+
+	bfad_remove_intr(bfad);
+	del_timer_sync(&bfad->hal_tmo);
+	pci_disable_device(pdev);
+
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static void
+bfad_pci_resume(struct pci_dev *pdev)
+{
+	unsigned long	flags;
+	struct bfad_s *bfad = pci_get_drvdata(pdev);
+
+	dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
+
+	/* wait until the link is online */
+	bfad_rport_online_wait(bfad);
+
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	bfad->bfad_flags &= ~BFAD_EEH_BUSY;
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+}
+
 struct pci_device_id bfad_id_table[] = {
 	{
 		.vendor = BFA_PCI_VENDOR_ID_BROCADE,
@@ -1513,11 +1725,22 @@ struct pci_device_id bfad_id_table[] = {
 
 MODULE_DEVICE_TABLE(pci, bfad_id_table);
 
+/*
+ * PCI error recovery handlers.
+ */
+static struct pci_error_handlers bfad_err_handler = {
+	.error_detected = bfad_pci_error_detected,
+	.slot_reset = bfad_pci_slot_reset,
+	.mmio_enabled = bfad_pci_mmio_enabled,
+	.resume = bfad_pci_resume,
+};
+
 static struct pci_driver bfad_pci_driver = {
 	.name = BFAD_DRIVER_NAME,
 	.id_table = bfad_id_table,
 	.probe = bfad_pci_probe,
 	.remove = __devexit_p(bfad_pci_remove),
+	.err_handler = &bfad_err_handler,
 };
 
 /*
@@ -1546,6 +1769,7 @@ bfad_init(void)
 
 	bfa_auto_recover = ioc_auto_recover;
 	bfa_fcs_rport_set_del_timeout(rport_del_timeout);
+	bfa_fcs_rport_set_max_logins(max_rport_logins);
 
 	error = pci_register_driver(&bfad_pci_driver);
 	if (error) {
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index b8392744017..72f5dc32cc1 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -587,6 +587,37 @@ bfad_im_vport_disable(struct fc_vport *fc_vport, bool disable)
 	return 0;
 }
 
+void
+bfad_im_vport_set_symbolic_name(struct fc_vport *fc_vport)
+{
+	struct bfad_vport_s *vport = (struct bfad_vport_s *)fc_vport->dd_data;
+	struct bfad_im_port_s *im_port =
+			(struct bfad_im_port_s *)vport->drv_port.im_port;
+	struct bfad_s *bfad = im_port->bfad;
+	struct Scsi_Host *vshost = vport->drv_port.im_port->shost;
+	char *sym_name = fc_vport->symbolic_name;
+	struct bfa_fcs_vport_s *fcs_vport;
+	wwn_t	pwwn;
+	unsigned long flags;
+
+	u64_to_wwn(fc_host_port_name(vshost), (u8 *)&pwwn);
+
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0, pwwn);
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+	if (fcs_vport == NULL)
+		return;
+
+	spin_lock_irqsave(&bfad->bfad_lock, flags);
+	if (strlen(sym_name) > 0) {
+		strcpy(fcs_vport->lport.port_cfg.sym_name.symname, sym_name);
+		bfa_fcs_lport_ns_util_send_rspn_id(
+			BFA_FCS_GET_NS_FROM_PORT((&fcs_vport->lport)), NULL);
+	}
+	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+}
+
 struct fc_function_template bfad_im_fc_function_template = {
 
 	/* Target dynamic attributes */
@@ -640,6 +671,7 @@ struct fc_function_template bfad_im_fc_function_template = {
 	.vport_create = bfad_im_vport_create,
 	.vport_delete = bfad_im_vport_delete,
 	.vport_disable = bfad_im_vport_disable,
+	.set_vport_symbolic_name = bfad_im_vport_set_symbolic_name,
 	.bsg_request = bfad_im_bsg_request,
 	.bsg_timeout = bfad_im_bsg_timeout,
 };
@@ -792,6 +824,13 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 		else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 				"Brocade 16Gbps PCIe dual port FC HBA");
+	} else if (!strcmp(model, "Brocade-1867")) {
+		if (nports == 1 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 16Gbps PCIe single port FC HBA for IBM");
+		else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
+			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
+				"Brocade 16Gbps PCIe dual port FC HBA for IBM");
 	} else
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Invalid Model");
@@ -909,15 +948,16 @@ bfad_im_num_of_discovered_ports_show(struct device *dev,
 	struct bfad_port_s    *port = im_port->port;
 	struct bfad_s         *bfad = im_port->bfad;
 	int        nrports = 2048;
-	wwn_t          *rports = NULL;
+	struct bfa_rport_qualifier_s *rports = NULL;
 	unsigned long   flags;
 
-	rports = kzalloc(sizeof(wwn_t) * nrports , GFP_ATOMIC);
+	rports = kzalloc(sizeof(struct bfa_rport_qualifier_s) * nrports,
+			 GFP_ATOMIC);
 	if (rports == NULL)
 		return snprintf(buf, PAGE_SIZE, "Failed\n");
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
-	bfa_fcs_lport_get_rports(port->fcs_port, rports, &nrports);
+	bfa_fcs_lport_get_rport_quals(port->fcs_port, rports, &nrports);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 	kfree(rports);
 
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index 9c1495b321d..0afa39076ce 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -535,7 +535,8 @@ bfad_iocmd_lport_get_rports(struct bfad_s *bfad, void *cmd,
 
 	if (bfad_chk_iocmd_sz(payload_len,
 			sizeof(struct bfa_bsg_lport_get_rports_s),
-			sizeof(wwn_t) * iocmd->nrports) != BFA_STATUS_OK) {
+			sizeof(struct bfa_rport_qualifier_s) * iocmd->nrports)
+			!= BFA_STATUS_OK) {
 		iocmd->status = BFA_STATUS_VERSION_FAIL;
 		return 0;
 	}
@@ -552,8 +553,9 @@ bfad_iocmd_lport_get_rports(struct bfad_s *bfad, void *cmd,
 		goto out;
 	}
 
-	bfa_fcs_lport_get_rports(fcs_port, (wwn_t *)iocmd_bufptr,
-				&iocmd->nrports);
+	bfa_fcs_lport_get_rport_quals(fcs_port,
+			(struct bfa_rport_qualifier_s *)iocmd_bufptr,
+			&iocmd->nrports);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 	iocmd->status = BFA_STATUS_OK;
 out:
@@ -578,7 +580,11 @@ bfad_iocmd_rport_get_attr(struct bfad_s *bfad, void *cmd)
 		goto out;
 	}
 
-	fcs_rport = bfa_fcs_rport_lookup(fcs_port, iocmd->rpwwn);
+	if (iocmd->pid)
+		fcs_rport = bfa_fcs_lport_get_rport_by_qualifier(fcs_port,
+						iocmd->rpwwn, iocmd->pid);
+	else
+		fcs_rport = bfa_fcs_rport_lookup(fcs_port, iocmd->rpwwn);
 	if (fcs_rport == NULL) {
 		bfa_trc(bfad, 0);
 		spin_unlock_irqrestore(&bfad->bfad_lock, flags);
@@ -671,9 +677,11 @@ bfad_iocmd_rport_get_stats(struct bfad_s *bfad, void *cmd)
 
 	memcpy((void *)&iocmd->stats, (void *)&fcs_rport->stats,
 		sizeof(struct bfa_rport_stats_s));
-	memcpy((void *)&iocmd->stats.hal_stats,
-	       (void *)&(bfa_fcs_rport_get_halrport(fcs_rport)->stats),
-	       sizeof(struct bfa_rport_hal_stats_s));
+	if (bfa_fcs_rport_get_halrport(fcs_rport)) {
+		memcpy((void *)&iocmd->stats.hal_stats,
+		       (void *)&(bfa_fcs_rport_get_halrport(fcs_rport)->stats),
+			sizeof(struct bfa_rport_hal_stats_s));
+	}
 
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 	iocmd->status = BFA_STATUS_OK;
@@ -709,7 +717,8 @@ bfad_iocmd_rport_clr_stats(struct bfad_s *bfad, void *cmd)
 
 	memset((char *)&fcs_rport->stats, 0, sizeof(struct bfa_rport_stats_s));
 	rport = bfa_fcs_rport_get_halrport(fcs_rport);
-	memset(&rport->stats, 0, sizeof(rport->stats));
+	if (rport)
+		memset(&rport->stats, 0, sizeof(rport->stats));
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 	iocmd->status = BFA_STATUS_OK;
 out:
@@ -744,7 +753,8 @@ bfad_iocmd_rport_set_speed(struct bfad_s *bfad, void *cmd)
 	fcs_rport->rpf.assigned_speed  = iocmd->speed;
 	/* Set this speed in f/w only if the RPSC speed is not available */
 	if (fcs_rport->rpf.rpsc_speed == BFA_PORT_SPEED_UNKNOWN)
-		bfa_rport_speed(fcs_rport->bfa_rport, iocmd->speed);
+		if (fcs_rport->bfa_rport)
+			bfa_rport_speed(fcs_rport->bfa_rport, iocmd->speed);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 	iocmd->status = BFA_STATUS_OK;
 out:
@@ -1030,9 +1040,10 @@ bfad_iocmd_itnim_get_iostats(struct bfad_s *bfad, void *cmd)
 			iocmd->status = BFA_STATUS_UNKNOWN_RWWN;
 		else {
 			iocmd->status = BFA_STATUS_OK;
-			memcpy((void *)&iocmd->iostats, (void *)
-			       &(bfa_fcs_itnim_get_halitn(itnim)->stats),
-			       sizeof(struct bfa_itnim_iostats_s));
+			if (bfa_fcs_itnim_get_halitn(itnim))
+				memcpy((void *)&iocmd->iostats, (void *)
+				&(bfa_fcs_itnim_get_halitn(itnim)->stats),
+				       sizeof(struct bfa_itnim_iostats_s));
 		}
 	}
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
@@ -2949,13 +2960,13 @@ bfad_fcxp_bsg_send(struct fc_bsg_job *job, struct bfad_fcxp *drv_fcxp,
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 
 	/* Allocate bfa_fcxp structure */
-	hal_fcxp = bfa_fcxp_alloc(drv_fcxp, &bfad->bfa,
+	hal_fcxp = bfa_fcxp_req_rsp_alloc(drv_fcxp, &bfad->bfa,
 				  drv_fcxp->num_req_sgles,
 				  drv_fcxp->num_rsp_sgles,
 				  bfad_fcxp_get_req_sgaddr_cb,
 				  bfad_fcxp_get_req_sglen_cb,
 				  bfad_fcxp_get_rsp_sgaddr_cb,
-				  bfad_fcxp_get_rsp_sglen_cb);
+				  bfad_fcxp_get_rsp_sglen_cb, BFA_TRUE);
 	if (!hal_fcxp) {
 		bfa_trc(bfad, 0);
 		spin_unlock_irqrestore(&bfad->bfad_lock, flags);
diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h
index 17ad6728313..8c569ddb750 100644
--- a/drivers/scsi/bfa/bfad_bsg.h
+++ b/drivers/scsi/bfa/bfad_bsg.h
@@ -319,6 +319,8 @@ struct bfa_bsg_rport_attr_s {
 	u16		vf_id;
 	wwn_t		pwwn;
 	wwn_t		rpwwn;
+	u32		pid;
+	u32		rsvd;
 	struct bfa_rport_attr_s attr;
 };
 
diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h
index 7f74f1d1912..1840651ce1d 100644
--- a/drivers/scsi/bfa/bfad_drv.h
+++ b/drivers/scsi/bfa/bfad_drv.h
@@ -37,6 +37,7 @@
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
 #include <linux/bitops.h>
+#include <linux/aer.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_tcq.h>
@@ -56,7 +57,7 @@
 #ifdef BFA_DRIVER_VERSION
 #define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
 #else
-#define BFAD_DRIVER_VERSION    "3.0.23.0"
+#define BFAD_DRIVER_VERSION    "3.1.2.0"
 #endif
 
 #define BFAD_PROTO_NAME FCPI_NAME
@@ -81,6 +82,8 @@
 #define BFAD_FC4_PROBE_DONE			0x00000200
 #define BFAD_PORT_DELETE			0x00000001
 #define BFAD_INTX_ON				0x00000400
+#define BFAD_EEH_BUSY				0x00000800
+#define BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE	0x00001000
 /*
  * BFAD related definition
  */
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 2eebf8d4d58..8f92732655c 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -1216,6 +1216,15 @@ bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd
 		return 0;
 	}
 
+	if (bfad->bfad_flags & BFAD_EEH_BUSY) {
+		if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE)
+			cmnd->result = DID_NO_CONNECT << 16;
+		else
+			cmnd->result = DID_REQUEUE << 16;
+		done(cmnd);
+		return 0;
+	}
+
 	sg_cnt = scsi_dma_map(cmnd);
 	if (sg_cnt < 0)
 		return SCSI_MLQUEUE_HOST_BUSY;
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index ae1cb7639d9..e0558656c64 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -908,7 +908,7 @@ static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 		return;
 
 	default:
-		printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
+		printk(KERN_ERR PFX "Unknown netevent %ld", event);
 		return;
 	}
 
@@ -1738,7 +1738,7 @@ static int bnx2fc_ulp_get_stats(void *handle)
 /**
  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
  *
- * @handle:	transport handle pointing to adapter struture
+ * @handle:	transport handle pointing to adapter structure
  *
  * This function maps adapter structure to pcidev structure and initiates
  *	firmware handshake to enable/initialize on-chip FCoE components.
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 73f231ccd45..8d4626c07a1 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1807,7 +1807,7 @@ static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
 			fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
 		}
 
-		memset(sc_cmd->sense_buffer, 0, sizeof(sc_cmd->sense_buffer));
+		memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 		if (fcp_sns_len)
 			memcpy(sc_cmd->sense_buffer, rq_data, fcp_sns_len);
 
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 33d6630529d..91eec60252e 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -1264,6 +1264,9 @@ int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba)
 	int rc = 0;
 	u64 mask64;
 
+	memset(&iscsi_init, 0x00, sizeof(struct iscsi_kwqe_init1));
+	memset(&iscsi_init2, 0x00, sizeof(struct iscsi_kwqe_init2));
+
 	bnx2i_adjust_qp_size(hba);
 
 	iscsi_init.flags =
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 450e011f981..76e4c039f0d 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1422,7 +1422,8 @@ static const char * const hostbyte_table[]={
 "DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET",
 "DID_ABORT", "DID_PARITY", "DID_ERROR", "DID_RESET", "DID_BAD_INTR",
 "DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE",
-"DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST" };
+"DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE",
+"DID_NEXUS_FAILURE" };
 #define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table)
 
 static const char * const driverbyte_table[]={
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 08d80a6d272..6f4d8e6f32f 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -641,8 +641,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 		h->state = TPGS_STATE_STANDBY;
 		break;
 	case TPGS_STATE_OFFLINE:
-	case TPGS_STATE_UNAVAILABLE:
-		/* Path unusable for unavailable/offline */
+		/* Path unusable */
 		err = SCSI_DH_DEV_OFFLINED;
 		break;
 	default:
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 20c4557f5ab..69c915aa77c 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -790,29 +790,19 @@ static const struct scsi_dh_devlist rdac_dev_list[] = {
 	{"IBM", "1815"},
 	{"IBM", "1818"},
 	{"IBM", "3526"},
-	{"SGI", "TP9400"},
-	{"SGI", "TP9500"},
-	{"SGI", "TP9700"},
+	{"SGI", "TP9"},
 	{"SGI", "IS"},
 	{"STK", "OPENstorage D280"},
-	{"SUN", "CSM200_R"},
-	{"SUN", "LCSM100_I"},
-	{"SUN", "LCSM100_S"},
-	{"SUN", "LCSM100_E"},
-	{"SUN", "LCSM100_F"},
-	{"DELL", "MD3000"},
-	{"DELL", "MD3000i"},
-	{"DELL", "MD32xx"},
-	{"DELL", "MD32xxi"},
-	{"DELL", "MD36xxi"},
-	{"DELL", "MD36xxf"},
-	{"LSI", "INF-01-00"},
-	{"ENGENIO", "INF-01-00"},
 	{"STK", "FLEXLINE 380"},
-	{"SUN", "CSM100_R_FC"},
+	{"SUN", "CSM"},
+	{"SUN", "LCSM100"},
 	{"SUN", "STK6580_6780"},
 	{"SUN", "SUN_6180"},
 	{"SUN", "ArrayStorage"},
+	{"DELL", "MD3"},
+	{"NETAPP", "INF-01-00"},
+	{"LSI", "INF-01-00"},
+	{"ENGENIO", "INF-01-00"},
 	{NULL, NULL},
 };
 
@@ -863,7 +853,7 @@ static int rdac_bus_attach(struct scsi_device *sdev)
 	if (!scsi_dh_data) {
 		sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
 			    RDAC_NAME);
-		return 0;
+		return -ENOMEM;
 	}
 
 	scsi_dh_data->scsi_dh = &rdac_dh;
diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h
index d3e4d7c6f57..fbf6f0f4b0d 100644
--- a/drivers/scsi/gdth.h
+++ b/drivers/scsi/gdth.h
@@ -49,15 +49,6 @@
 /* GDT_ISA */
 #define GDT2_ID         0x0120941c              /* GDT2000/2020 */
 
-/* vendor ID, device IDs (PCI) */
-/* these defines should already exist in <linux/pci.h> */
-#ifndef PCI_VENDOR_ID_VORTEX
-#define PCI_VENDOR_ID_VORTEX            0x1119  /* PCI controller vendor ID */
-#endif
-#ifndef PCI_VENDOR_ID_INTEL
-#define PCI_VENDOR_ID_INTEL             0x8086  
-#endif
-
 #ifndef PCI_DEVICE_ID_VORTEX_GDT60x0
 /* GDT_PCI */
 #define PCI_DEVICE_ID_VORTEX_GDT60x0    0       /* GDT6000/6020/6050 */
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 796482badf1..4217e49aea4 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -99,6 +99,15 @@ static const struct pci_device_id hpsa_pci_device_id[] = {
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3354},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3355},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3356},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1920},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1921},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1922},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1923},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1924},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1925},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1926},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1928},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x334d},
 	{PCI_VENDOR_ID_HP,     PCI_ANY_ID,	PCI_ANY_ID, PCI_ANY_ID,
 		PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
 	{0,}
@@ -118,13 +127,22 @@ static struct board_type products[] = {
 	{0x3249103C, "Smart Array P812", &SA5_access},
 	{0x324a103C, "Smart Array P712m", &SA5_access},
 	{0x324b103C, "Smart Array P711m", &SA5_access},
-	{0x3350103C, "Smart Array", &SA5_access},
-	{0x3351103C, "Smart Array", &SA5_access},
-	{0x3352103C, "Smart Array", &SA5_access},
-	{0x3353103C, "Smart Array", &SA5_access},
-	{0x3354103C, "Smart Array", &SA5_access},
-	{0x3355103C, "Smart Array", &SA5_access},
-	{0x3356103C, "Smart Array", &SA5_access},
+	{0x3350103C, "Smart Array P222", &SA5_access},
+	{0x3351103C, "Smart Array P420", &SA5_access},
+	{0x3352103C, "Smart Array P421", &SA5_access},
+	{0x3353103C, "Smart Array P822", &SA5_access},
+	{0x3354103C, "Smart Array P420i", &SA5_access},
+	{0x3355103C, "Smart Array P220i", &SA5_access},
+	{0x3356103C, "Smart Array P721m", &SA5_access},
+	{0x1920103C, "Smart Array", &SA5_access},
+	{0x1921103C, "Smart Array", &SA5_access},
+	{0x1922103C, "Smart Array", &SA5_access},
+	{0x1923103C, "Smart Array", &SA5_access},
+	{0x1924103C, "Smart Array", &SA5_access},
+	{0x1925103C, "Smart Array", &SA5_access},
+	{0x1926103C, "Smart Array", &SA5_access},
+	{0x1928103C, "Smart Array", &SA5_access},
+	{0x334d103C, "Smart Array P822se", &SA5_access},
 	{0xFFFF103C, "Unknown Smart Array", &SA5_access},
 };
 
@@ -1315,8 +1333,9 @@ static void complete_scsi_command(struct CommandList *cp)
 	}
 		break;
 	case CMD_PROTOCOL_ERR:
+		cmd->result = DID_ERROR << 16;
 		dev_warn(&h->pdev->dev, "cp %p has "
-			"protocol error \n", cp);
+			"protocol error\n", cp);
 		break;
 	case CMD_HARDWARE_ERR:
 		cmd->result = DID_ERROR << 16;
@@ -2609,7 +2628,7 @@ static int hpsa_eh_abort_handler(struct scsi_cmnd *sc)
 	/* not in reqQ, if also not in cmpQ, must have already completed */
 	found = hpsa_find_cmd_in_queue(h, sc, &h->cmpQ);
 	if (!found)  {
-		dev_dbg(&h->pdev->dev, "%s Request FAILED (not known to driver).\n",
+		dev_dbg(&h->pdev->dev, "%s Request SUCCEEDED (not known to driver).\n",
 				msg);
 		return SUCCESS;
 	}
@@ -3265,7 +3284,7 @@ static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
 			c->Request.Timeout = 0; /* Don't time out */
 			memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
 			c->Request.CDB[0] =  cmd;
-			c->Request.CDB[1] = 0x03;  /* Reset target above */
+			c->Request.CDB[1] = HPSA_RESET_TYPE_LUN;
 			/* If bytes 4-7 are zero, it means reset the */
 			/* LunID device */
 			c->Request.CDB[4] = 0x00;
@@ -3337,7 +3356,8 @@ static void __iomem *remap_pci_mem(ulong base, ulong size)
 {
 	ulong page_base = ((ulong) base) & PAGE_MASK;
 	ulong page_offs = ((ulong) base) - page_base;
-	void __iomem *page_remapped = ioremap(page_base, page_offs + size);
+	void __iomem *page_remapped = ioremap_nocache(page_base,
+		page_offs + size);
 
 	return page_remapped ? (page_remapped + page_offs) : NULL;
 }
diff --git a/drivers/scsi/ibmvscsi/Makefile b/drivers/scsi/ibmvscsi/Makefile
index ff5b5c5538e..cb150d1e585 100644
--- a/drivers/scsi/ibmvscsi/Makefile
+++ b/drivers/scsi/ibmvscsi/Makefile
@@ -1,7 +1,3 @@
-obj-$(CONFIG_SCSI_IBMVSCSI)	+= ibmvscsic.o
-
-ibmvscsic-y			+= ibmvscsi.o
-ibmvscsic-$(CONFIG_PPC_PSERIES)	+= rpa_vscsi.o 
-
+obj-$(CONFIG_SCSI_IBMVSCSI)	+= ibmvscsi.o
 obj-$(CONFIG_SCSI_IBMVSCSIS)	+= ibmvstgt.o
 obj-$(CONFIG_SCSI_IBMVFC)	+= ibmvfc.o
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 134a0ae85bb..5e8d51bd03d 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2242,6 +2242,21 @@ static int ibmvfc_match_key(struct ibmvfc_event *evt, void *key)
 }
 
 /**
+ * ibmvfc_match_evt - Match function for specified event
+ * @evt:	ibmvfc event struct
+ * @match:	event to match
+ *
+ * Returns:
+ *	1 if event matches key / 0 if event does not match key
+ **/
+static int ibmvfc_match_evt(struct ibmvfc_event *evt, void *match)
+{
+	if (evt == match)
+		return 1;
+	return 0;
+}
+
+/**
  * ibmvfc_abort_task_set - Abort outstanding commands to the device
  * @sdev:	scsi device to abort commands
  *
@@ -2322,7 +2337,20 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev)
 		if (rc) {
 			sdev_printk(KERN_INFO, sdev, "Cancel failed, resetting host\n");
 			ibmvfc_reset_host(vhost);
-			rsp_rc = 0;
+			rsp_rc = -EIO;
+			rc = ibmvfc_wait_for_ops(vhost, sdev->hostdata, ibmvfc_match_key);
+
+			if (rc == SUCCESS)
+				rsp_rc = 0;
+
+			rc = ibmvfc_wait_for_ops(vhost, evt, ibmvfc_match_evt);
+			if (rc != SUCCESS) {
+				spin_lock_irqsave(vhost->host->host_lock, flags);
+				ibmvfc_hard_reset_host(vhost);
+				spin_unlock_irqrestore(vhost->host->host_lock, flags);
+				rsp_rc = 0;
+			}
+
 			goto out;
 		}
 	}
@@ -2597,8 +2625,10 @@ static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq,
 	case IBMVFC_AE_SCN_FABRIC:
 	case IBMVFC_AE_SCN_DOMAIN:
 		vhost->events_to_log |= IBMVFC_AE_RSCN;
-		vhost->delay_init = 1;
-		__ibmvfc_reset_host(vhost);
+		if (vhost->state < IBMVFC_HALTED) {
+			vhost->delay_init = 1;
+			__ibmvfc_reset_host(vhost);
+		}
 		break;
 	case IBMVFC_AE_SCN_NPORT:
 	case IBMVFC_AE_SCN_GROUP:
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h
index 834c37fc7ce..3be8af624e6 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.h
+++ b/drivers/scsi/ibmvscsi/ibmvfc.h
@@ -29,8 +29,8 @@
 #include "viosrp.h"
 
 #define IBMVFC_NAME	"ibmvfc"
-#define IBMVFC_DRIVER_VERSION		"1.0.9"
-#define IBMVFC_DRIVER_DATE		"(August 5, 2010)"
+#define IBMVFC_DRIVER_VERSION		"1.0.10"
+#define IBMVFC_DRIVER_DATE		"(August 24, 2012)"
 
 #define IBMVFC_DEFAULT_TIMEOUT	60
 #define IBMVFC_ADISC_CANCEL_TIMEOUT	45
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 3a6c4742951..ef9a54c7da6 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -93,13 +93,13 @@ static int max_requests = IBMVSCSI_MAX_REQUESTS_DEFAULT;
 static int max_events = IBMVSCSI_MAX_REQUESTS_DEFAULT + 2;
 static int fast_fail = 1;
 static int client_reserve = 1;
+static char partition_name[97] = "UNKNOWN";
+static unsigned int partition_number = -1;
 
 static struct scsi_transport_template *ibmvscsi_transport_template;
 
 #define IBMVSCSI_VERSION "1.5.9"
 
-static struct ibmvscsi_ops *ibmvscsi_ops;
-
 MODULE_DESCRIPTION("IBM Virtual SCSI");
 MODULE_AUTHOR("Dave Boutcher");
 MODULE_LICENSE("GPL");
@@ -118,6 +118,316 @@ MODULE_PARM_DESC(fast_fail, "Enable fast fail. [Default=1]");
 module_param_named(client_reserve, client_reserve, int, S_IRUGO );
 MODULE_PARM_DESC(client_reserve, "Attempt client managed reserve/release");
 
+static void ibmvscsi_handle_crq(struct viosrp_crq *crq,
+				struct ibmvscsi_host_data *hostdata);
+
+/* ------------------------------------------------------------
+ * Routines for managing the command/response queue
+ */
+/**
+ * ibmvscsi_handle_event: - Interrupt handler for crq events
+ * @irq:	number of irq to handle, not used
+ * @dev_instance: ibmvscsi_host_data of host that received interrupt
+ *
+ * Disables interrupts and schedules srp_task
+ * Always returns IRQ_HANDLED
+ */
+static irqreturn_t ibmvscsi_handle_event(int irq, void *dev_instance)
+{
+	struct ibmvscsi_host_data *hostdata =
+	    (struct ibmvscsi_host_data *)dev_instance;
+	vio_disable_interrupts(to_vio_dev(hostdata->dev));
+	tasklet_schedule(&hostdata->srp_task);
+	return IRQ_HANDLED;
+}
+
+/**
+ * release_crq_queue: - Deallocates data and unregisters CRQ
+ * @queue:	crq_queue to initialize and register
+ * @host_data:	ibmvscsi_host_data of host
+ *
+ * Frees irq, deallocates a page for messages, unmaps dma, and unregisters
+ * the crq with the hypervisor.
+ */
+static void ibmvscsi_release_crq_queue(struct crq_queue *queue,
+				       struct ibmvscsi_host_data *hostdata,
+				       int max_requests)
+{
+	long rc = 0;
+	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
+	free_irq(vdev->irq, (void *)hostdata);
+	tasklet_kill(&hostdata->srp_task);
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
+	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
+	dma_unmap_single(hostdata->dev,
+			 queue->msg_token,
+			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
+	free_page((unsigned long)queue->msgs);
+}
+
+/**
+ * crq_queue_next_crq: - Returns the next entry in message queue
+ * @queue:	crq_queue to use
+ *
+ * Returns pointer to next entry in queue, or NULL if there are no new
+ * entried in the CRQ.
+ */
+static struct viosrp_crq *crq_queue_next_crq(struct crq_queue *queue)
+{
+	struct viosrp_crq *crq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&queue->lock, flags);
+	crq = &queue->msgs[queue->cur];
+	if (crq->valid & 0x80) {
+		if (++queue->cur == queue->size)
+			queue->cur = 0;
+	} else
+		crq = NULL;
+	spin_unlock_irqrestore(&queue->lock, flags);
+
+	return crq;
+}
+
+/**
+ * ibmvscsi_send_crq: - Send a CRQ
+ * @hostdata:	the adapter
+ * @word1:	the first 64 bits of the data
+ * @word2:	the second 64 bits of the data
+ */
+static int ibmvscsi_send_crq(struct ibmvscsi_host_data *hostdata,
+			     u64 word1, u64 word2)
+{
+	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
+
+	return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2);
+}
+
+/**
+ * ibmvscsi_task: - Process srps asynchronously
+ * @data:	ibmvscsi_host_data of host
+ */
+static void ibmvscsi_task(void *data)
+{
+	struct ibmvscsi_host_data *hostdata = (struct ibmvscsi_host_data *)data;
+	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
+	struct viosrp_crq *crq;
+	int done = 0;
+
+	while (!done) {
+		/* Pull all the valid messages off the CRQ */
+		while ((crq = crq_queue_next_crq(&hostdata->queue)) != NULL) {
+			ibmvscsi_handle_crq(crq, hostdata);
+			crq->valid = 0x00;
+		}
+
+		vio_enable_interrupts(vdev);
+		crq = crq_queue_next_crq(&hostdata->queue);
+		if (crq != NULL) {
+			vio_disable_interrupts(vdev);
+			ibmvscsi_handle_crq(crq, hostdata);
+			crq->valid = 0x00;
+		} else {
+			done = 1;
+		}
+	}
+}
+
+static void gather_partition_info(void)
+{
+	struct device_node *rootdn;
+
+	const char *ppartition_name;
+	const unsigned int *p_number_ptr;
+
+	/* Retrieve information about this partition */
+	rootdn = of_find_node_by_path("/");
+	if (!rootdn) {
+		return;
+	}
+
+	ppartition_name = of_get_property(rootdn, "ibm,partition-name", NULL);
+	if (ppartition_name)
+		strncpy(partition_name, ppartition_name,
+				sizeof(partition_name));
+	p_number_ptr = of_get_property(rootdn, "ibm,partition-no", NULL);
+	if (p_number_ptr)
+		partition_number = *p_number_ptr;
+	of_node_put(rootdn);
+}
+
+static void set_adapter_info(struct ibmvscsi_host_data *hostdata)
+{
+	memset(&hostdata->madapter_info, 0x00,
+			sizeof(hostdata->madapter_info));
+
+	dev_info(hostdata->dev, "SRP_VERSION: %s\n", SRP_VERSION);
+	strcpy(hostdata->madapter_info.srp_version, SRP_VERSION);
+
+	strncpy(hostdata->madapter_info.partition_name, partition_name,
+			sizeof(hostdata->madapter_info.partition_name));
+
+	hostdata->madapter_info.partition_number = partition_number;
+
+	hostdata->madapter_info.mad_version = 1;
+	hostdata->madapter_info.os_type = 2;
+}
+
+/**
+ * reset_crq_queue: - resets a crq after a failure
+ * @queue:	crq_queue to initialize and register
+ * @hostdata:	ibmvscsi_host_data of host
+ *
+ */
+static int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
+				    struct ibmvscsi_host_data *hostdata)
+{
+	int rc = 0;
+	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
+
+	/* Close the CRQ */
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
+	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
+
+	/* Clean out the queue */
+	memset(queue->msgs, 0x00, PAGE_SIZE);
+	queue->cur = 0;
+
+	set_adapter_info(hostdata);
+
+	/* And re-open it again */
+	rc = plpar_hcall_norets(H_REG_CRQ,
+				vdev->unit_address,
+				queue->msg_token, PAGE_SIZE);
+	if (rc == 2) {
+		/* Adapter is good, but other end is not ready */
+		dev_warn(hostdata->dev, "Partner adapter not ready\n");
+	} else if (rc != 0) {
+		dev_warn(hostdata->dev, "couldn't register crq--rc 0x%x\n", rc);
+	}
+	return rc;
+}
+
+/**
+ * initialize_crq_queue: - Initializes and registers CRQ with hypervisor
+ * @queue:	crq_queue to initialize and register
+ * @hostdata:	ibmvscsi_host_data of host
+ *
+ * Allocates a page for messages, maps it for dma, and registers
+ * the crq with the hypervisor.
+ * Returns zero on success.
+ */
+static int ibmvscsi_init_crq_queue(struct crq_queue *queue,
+				   struct ibmvscsi_host_data *hostdata,
+				   int max_requests)
+{
+	int rc;
+	int retrc;
+	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
+
+	queue->msgs = (struct viosrp_crq *)get_zeroed_page(GFP_KERNEL);
+
+	if (!queue->msgs)
+		goto malloc_failed;
+	queue->size = PAGE_SIZE / sizeof(*queue->msgs);
+
+	queue->msg_token = dma_map_single(hostdata->dev, queue->msgs,
+					  queue->size * sizeof(*queue->msgs),
+					  DMA_BIDIRECTIONAL);
+
+	if (dma_mapping_error(hostdata->dev, queue->msg_token))
+		goto map_failed;
+
+	gather_partition_info();
+	set_adapter_info(hostdata);
+
+	retrc = rc = plpar_hcall_norets(H_REG_CRQ,
+				vdev->unit_address,
+				queue->msg_token, PAGE_SIZE);
+	if (rc == H_RESOURCE)
+		/* maybe kexecing and resource is busy. try a reset */
+		rc = ibmvscsi_reset_crq_queue(queue,
+					      hostdata);
+
+	if (rc == 2) {
+		/* Adapter is good, but other end is not ready */
+		dev_warn(hostdata->dev, "Partner adapter not ready\n");
+		retrc = 0;
+	} else if (rc != 0) {
+		dev_warn(hostdata->dev, "Error %d opening adapter\n", rc);
+		goto reg_crq_failed;
+	}
+
+	queue->cur = 0;
+	spin_lock_init(&queue->lock);
+
+	tasklet_init(&hostdata->srp_task, (void *)ibmvscsi_task,
+		     (unsigned long)hostdata);
+
+	if (request_irq(vdev->irq,
+			ibmvscsi_handle_event,
+			0, "ibmvscsi", (void *)hostdata) != 0) {
+		dev_err(hostdata->dev, "couldn't register irq 0x%x\n",
+			vdev->irq);
+		goto req_irq_failed;
+	}
+
+	rc = vio_enable_interrupts(vdev);
+	if (rc != 0) {
+		dev_err(hostdata->dev, "Error %d enabling interrupts!!!\n", rc);
+		goto req_irq_failed;
+	}
+
+	return retrc;
+
+      req_irq_failed:
+	tasklet_kill(&hostdata->srp_task);
+	rc = 0;
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
+	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
+      reg_crq_failed:
+	dma_unmap_single(hostdata->dev,
+			 queue->msg_token,
+			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
+      map_failed:
+	free_page((unsigned long)queue->msgs);
+      malloc_failed:
+	return -1;
+}
+
+/**
+ * reenable_crq_queue: - reenables a crq after
+ * @queue:	crq_queue to initialize and register
+ * @hostdata:	ibmvscsi_host_data of host
+ *
+ */
+static int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
+				       struct ibmvscsi_host_data *hostdata)
+{
+	int rc = 0;
+	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
+
+	/* Re-enable the CRQ */
+	do {
+		if (rc)
+			msleep(100);
+		rc = plpar_hcall_norets(H_ENABLE_CRQ, vdev->unit_address);
+	} while ((rc == H_IN_PROGRESS) || (rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
+
+	if (rc)
+		dev_err(hostdata->dev, "Error %d enabling adapter\n", rc);
+	return rc;
+}
+
 /* ------------------------------------------------------------
  * Routines for the event pool and event structs
  */
@@ -611,7 +921,7 @@ static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
 	}
 
 	if ((rc =
-	     ibmvscsi_ops->send_crq(hostdata, crq_as_u64[0], crq_as_u64[1])) != 0) {
+	     ibmvscsi_send_crq(hostdata, crq_as_u64[0], crq_as_u64[1])) != 0) {
 		list_del(&evt_struct->list);
 		del_timer(&evt_struct->timer);
 
@@ -1420,8 +1730,8 @@ static int ibmvscsi_eh_host_reset_handler(struct scsi_cmnd *cmd)
  * @hostdata:	ibmvscsi_host_data of host
  *
 */
-void ibmvscsi_handle_crq(struct viosrp_crq *crq,
-			 struct ibmvscsi_host_data *hostdata)
+static void ibmvscsi_handle_crq(struct viosrp_crq *crq,
+				struct ibmvscsi_host_data *hostdata)
 {
 	long rc;
 	unsigned long flags;
@@ -1433,8 +1743,8 @@ void ibmvscsi_handle_crq(struct viosrp_crq *crq,
 		case 0x01:	/* Initialization message */
 			dev_info(hostdata->dev, "partner initialized\n");
 			/* Send back a response */
-			if ((rc = ibmvscsi_ops->send_crq(hostdata,
-							 0xC002000000000000LL, 0)) == 0) {
+			rc = ibmvscsi_send_crq(hostdata, 0xC002000000000000LL, 0);
+			if (rc == 0) {
 				/* Now login */
 				init_adapter(hostdata);
 			} else {
@@ -1541,6 +1851,9 @@ static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata,
 
 	host_config = &evt_struct->iu.mad.host_config;
 
+	/* The transport length field is only 16-bit */
+	length = min(0xffff, length);
+
 	/* Set up a lun reset SRP command */
 	memset(host_config, 0x00, sizeof(*host_config));
 	host_config->common.type = VIOSRP_HOST_CONFIG_TYPE;
@@ -1840,17 +2153,17 @@ static void ibmvscsi_do_work(struct ibmvscsi_host_data *hostdata)
 		smp_rmb();
 		hostdata->reset_crq = 0;
 
-		rc = ibmvscsi_ops->reset_crq_queue(&hostdata->queue, hostdata);
+		rc = ibmvscsi_reset_crq_queue(&hostdata->queue, hostdata);
 		if (!rc)
-			rc = ibmvscsi_ops->send_crq(hostdata, 0xC001000000000000LL, 0);
+			rc = ibmvscsi_send_crq(hostdata, 0xC001000000000000LL, 0);
 		vio_enable_interrupts(to_vio_dev(hostdata->dev));
 	} else if (hostdata->reenable_crq) {
 		smp_rmb();
 		action = "enable";
-		rc = ibmvscsi_ops->reenable_crq_queue(&hostdata->queue, hostdata);
+		rc = ibmvscsi_reenable_crq_queue(&hostdata->queue, hostdata);
 		hostdata->reenable_crq = 0;
 		if (!rc)
-			rc = ibmvscsi_ops->send_crq(hostdata, 0xC001000000000000LL, 0);
+			rc = ibmvscsi_send_crq(hostdata, 0xC001000000000000LL, 0);
 	} else
 		return;
 
@@ -1944,7 +2257,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 		goto init_crq_failed;
 	}
 
-	rc = ibmvscsi_ops->init_crq_queue(&hostdata->queue, hostdata, max_events);
+	rc = ibmvscsi_init_crq_queue(&hostdata->queue, hostdata, max_events);
 	if (rc != 0 && rc != H_RESOURCE) {
 		dev_err(&vdev->dev, "couldn't initialize crq. rc=%d\n", rc);
 		goto kill_kthread;
@@ -1974,7 +2287,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 	 * to fail if the other end is not acive.  In that case we don't
 	 * want to scan
 	 */
-	if (ibmvscsi_ops->send_crq(hostdata, 0xC001000000000000LL, 0) == 0
+	if (ibmvscsi_send_crq(hostdata, 0xC001000000000000LL, 0) == 0
 	    || rc == H_RESOURCE) {
 		/*
 		 * Wait around max init_timeout secs for the adapter to finish
@@ -2002,7 +2315,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
       add_host_failed:
 	release_event_pool(&hostdata->pool, hostdata);
       init_pool_failed:
-	ibmvscsi_ops->release_crq_queue(&hostdata->queue, hostdata, max_events);
+	ibmvscsi_release_crq_queue(&hostdata->queue, hostdata, max_events);
       kill_kthread:
       kthread_stop(hostdata->work_thread);
       init_crq_failed:
@@ -2018,7 +2331,7 @@ static int ibmvscsi_remove(struct vio_dev *vdev)
 	struct ibmvscsi_host_data *hostdata = dev_get_drvdata(&vdev->dev);
 	unmap_persist_bufs(hostdata);
 	release_event_pool(&hostdata->pool, hostdata);
-	ibmvscsi_ops->release_crq_queue(&hostdata->queue, hostdata,
+	ibmvscsi_release_crq_queue(&hostdata->queue, hostdata,
 					max_events);
 
 	kthread_stop(hostdata->work_thread);
@@ -2039,7 +2352,10 @@ static int ibmvscsi_remove(struct vio_dev *vdev)
 static int ibmvscsi_resume(struct device *dev)
 {
 	struct ibmvscsi_host_data *hostdata = dev_get_drvdata(dev);
-	return ibmvscsi_ops->resume(hostdata);
+	vio_disable_interrupts(to_vio_dev(hostdata->dev));
+	tasklet_schedule(&hostdata->srp_task);
+
+	return 0;
 }
 
 /**
@@ -2076,9 +2392,7 @@ int __init ibmvscsi_module_init(void)
 	driver_template.can_queue = max_requests;
 	max_events = max_requests + 2;
 
-	if (firmware_has_feature(FW_FEATURE_VIO))
-		ibmvscsi_ops = &rpavscsi_ops;
-	else
+	if (!firmware_has_feature(FW_FEATURE_VIO))
 		return -ENODEV;
 
 	ibmvscsi_transport_template =
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
index c503e177601..7d64867c5dd 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.h
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -107,26 +107,4 @@ struct ibmvscsi_host_data {
 	dma_addr_t adapter_info_addr;
 };
 
-/* routines for managing a command/response queue */
-void ibmvscsi_handle_crq(struct viosrp_crq *crq,
-			 struct ibmvscsi_host_data *hostdata);
-
-struct ibmvscsi_ops {
-	int (*init_crq_queue)(struct crq_queue *queue,
-			      struct ibmvscsi_host_data *hostdata,
-			      int max_requests);
-	void (*release_crq_queue)(struct crq_queue *queue,
-				  struct ibmvscsi_host_data *hostdata,
-				  int max_requests);
-	int (*reset_crq_queue)(struct crq_queue *queue,
-			       struct ibmvscsi_host_data *hostdata);
-	int (*reenable_crq_queue)(struct crq_queue *queue,
-				  struct ibmvscsi_host_data *hostdata);
-	int (*send_crq)(struct ibmvscsi_host_data *hostdata,
-		       u64 word1, u64 word2);
-	int (*resume) (struct ibmvscsi_host_data *hostdata);
-};
-
-extern struct ibmvscsi_ops rpavscsi_ops;
-
 #endif				/* IBMVSCSI_H */
diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
deleted file mode 100644
index f48ae0190d9..00000000000
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ /dev/null
@@ -1,368 +0,0 @@
-/* ------------------------------------------------------------
- * rpa_vscsi.c
- * (C) Copyright IBM Corporation 1994, 2003
- * Authors: Colin DeVilbiss (devilbis@us.ibm.com)
- *          Santiago Leon (santil@us.ibm.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
- * USA
- *
- * ------------------------------------------------------------
- * RPA-specific functions of the SCSI host adapter for Virtual I/O devices
- *
- * This driver allows the Linux SCSI peripheral drivers to directly
- * access devices in the hosting partition, either on an iSeries
- * hypervisor system or a converged hypervisor system.
- */
-
-#include <asm/vio.h>
-#include <asm/prom.h>
-#include <asm/iommu.h>
-#include <asm/hvcall.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/gfp.h>
-#include <linux/interrupt.h>
-#include "ibmvscsi.h"
-
-static char partition_name[97] = "UNKNOWN";
-static unsigned int partition_number = -1;
-
-/* ------------------------------------------------------------
- * Routines for managing the command/response queue
- */
-/**
- * rpavscsi_handle_event: - Interrupt handler for crq events
- * @irq:	number of irq to handle, not used
- * @dev_instance: ibmvscsi_host_data of host that received interrupt
- *
- * Disables interrupts and schedules srp_task
- * Always returns IRQ_HANDLED
- */
-static irqreturn_t rpavscsi_handle_event(int irq, void *dev_instance)
-{
-	struct ibmvscsi_host_data *hostdata =
-	    (struct ibmvscsi_host_data *)dev_instance;
-	vio_disable_interrupts(to_vio_dev(hostdata->dev));
-	tasklet_schedule(&hostdata->srp_task);
-	return IRQ_HANDLED;
-}
-
-/**
- * release_crq_queue: - Deallocates data and unregisters CRQ
- * @queue:	crq_queue to initialize and register
- * @host_data:	ibmvscsi_host_data of host
- *
- * Frees irq, deallocates a page for messages, unmaps dma, and unregisters
- * the crq with the hypervisor.
- */
-static void rpavscsi_release_crq_queue(struct crq_queue *queue,
-				       struct ibmvscsi_host_data *hostdata,
-				       int max_requests)
-{
-	long rc = 0;
-	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
-	free_irq(vdev->irq, (void *)hostdata);
-	tasklet_kill(&hostdata->srp_task);
-	do {
-		if (rc)
-			msleep(100);
-		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
-	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
-	dma_unmap_single(hostdata->dev,
-			 queue->msg_token,
-			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
-	free_page((unsigned long)queue->msgs);
-}
-
-/**
- * crq_queue_next_crq: - Returns the next entry in message queue
- * @queue:	crq_queue to use
- *
- * Returns pointer to next entry in queue, or NULL if there are no new 
- * entried in the CRQ.
- */
-static struct viosrp_crq *crq_queue_next_crq(struct crq_queue *queue)
-{
-	struct viosrp_crq *crq;
-	unsigned long flags;
-
-	spin_lock_irqsave(&queue->lock, flags);
-	crq = &queue->msgs[queue->cur];
-	if (crq->valid & 0x80) {
-		if (++queue->cur == queue->size)
-			queue->cur = 0;
-	} else
-		crq = NULL;
-	spin_unlock_irqrestore(&queue->lock, flags);
-
-	return crq;
-}
-
-/**
- * rpavscsi_send_crq: - Send a CRQ
- * @hostdata:	the adapter
- * @word1:	the first 64 bits of the data
- * @word2:	the second 64 bits of the data
- */
-static int rpavscsi_send_crq(struct ibmvscsi_host_data *hostdata,
-			     u64 word1, u64 word2)
-{
-	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
-
-	return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2);
-}
-
-/**
- * rpavscsi_task: - Process srps asynchronously
- * @data:	ibmvscsi_host_data of host
- */
-static void rpavscsi_task(void *data)
-{
-	struct ibmvscsi_host_data *hostdata = (struct ibmvscsi_host_data *)data;
-	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
-	struct viosrp_crq *crq;
-	int done = 0;
-
-	while (!done) {
-		/* Pull all the valid messages off the CRQ */
-		while ((crq = crq_queue_next_crq(&hostdata->queue)) != NULL) {
-			ibmvscsi_handle_crq(crq, hostdata);
-			crq->valid = 0x00;
-		}
-
-		vio_enable_interrupts(vdev);
-		if ((crq = crq_queue_next_crq(&hostdata->queue)) != NULL) {
-			vio_disable_interrupts(vdev);
-			ibmvscsi_handle_crq(crq, hostdata);
-			crq->valid = 0x00;
-		} else {
-			done = 1;
-		}
-	}
-}
-
-static void gather_partition_info(void)
-{
-	struct device_node *rootdn;
-
-	const char *ppartition_name;
-	const unsigned int *p_number_ptr;
-
-	/* Retrieve information about this partition */
-	rootdn = of_find_node_by_path("/");
-	if (!rootdn) {
-		return;
-	}
-
-	ppartition_name = of_get_property(rootdn, "ibm,partition-name", NULL);
-	if (ppartition_name)
-		strncpy(partition_name, ppartition_name,
-				sizeof(partition_name));
-	p_number_ptr = of_get_property(rootdn, "ibm,partition-no", NULL);
-	if (p_number_ptr)
-		partition_number = *p_number_ptr;
-	of_node_put(rootdn);
-}
-
-static void set_adapter_info(struct ibmvscsi_host_data *hostdata)
-{
-	memset(&hostdata->madapter_info, 0x00,
-			sizeof(hostdata->madapter_info));
-
-	dev_info(hostdata->dev, "SRP_VERSION: %s\n", SRP_VERSION);
-	strcpy(hostdata->madapter_info.srp_version, SRP_VERSION);
-
-	strncpy(hostdata->madapter_info.partition_name, partition_name,
-			sizeof(hostdata->madapter_info.partition_name));
-
-	hostdata->madapter_info.partition_number = partition_number;
-
-	hostdata->madapter_info.mad_version = 1;
-	hostdata->madapter_info.os_type = 2;
-}
-
-/**
- * reset_crq_queue: - resets a crq after a failure
- * @queue:	crq_queue to initialize and register
- * @hostdata:	ibmvscsi_host_data of host
- *
- */
-static int rpavscsi_reset_crq_queue(struct crq_queue *queue,
-				    struct ibmvscsi_host_data *hostdata)
-{
-	int rc = 0;
-	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
-
-	/* Close the CRQ */
-	do {
-		if (rc)
-			msleep(100);
-		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
-	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
-
-	/* Clean out the queue */
-	memset(queue->msgs, 0x00, PAGE_SIZE);
-	queue->cur = 0;
-
-	set_adapter_info(hostdata);
-
-	/* And re-open it again */
-	rc = plpar_hcall_norets(H_REG_CRQ,
-				vdev->unit_address,
-				queue->msg_token, PAGE_SIZE);
-	if (rc == 2) {
-		/* Adapter is good, but other end is not ready */
-		dev_warn(hostdata->dev, "Partner adapter not ready\n");
-	} else if (rc != 0) {
-		dev_warn(hostdata->dev, "couldn't register crq--rc 0x%x\n", rc);
-	}
-	return rc;
-}
-
-/**
- * initialize_crq_queue: - Initializes and registers CRQ with hypervisor
- * @queue:	crq_queue to initialize and register
- * @hostdata:	ibmvscsi_host_data of host
- *
- * Allocates a page for messages, maps it for dma, and registers
- * the crq with the hypervisor.
- * Returns zero on success.
- */
-static int rpavscsi_init_crq_queue(struct crq_queue *queue,
-				   struct ibmvscsi_host_data *hostdata,
-				   int max_requests)
-{
-	int rc;
-	int retrc;
-	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
-
-	queue->msgs = (struct viosrp_crq *)get_zeroed_page(GFP_KERNEL);
-
-	if (!queue->msgs)
-		goto malloc_failed;
-	queue->size = PAGE_SIZE / sizeof(*queue->msgs);
-
-	queue->msg_token = dma_map_single(hostdata->dev, queue->msgs,
-					  queue->size * sizeof(*queue->msgs),
-					  DMA_BIDIRECTIONAL);
-
-	if (dma_mapping_error(hostdata->dev, queue->msg_token))
-		goto map_failed;
-
-	gather_partition_info();
-	set_adapter_info(hostdata);
-
-	retrc = rc = plpar_hcall_norets(H_REG_CRQ,
-				vdev->unit_address,
-				queue->msg_token, PAGE_SIZE);
-	if (rc == H_RESOURCE)
-		/* maybe kexecing and resource is busy. try a reset */
-		rc = rpavscsi_reset_crq_queue(queue,
-					      hostdata);
-
-	if (rc == 2) {
-		/* Adapter is good, but other end is not ready */
-		dev_warn(hostdata->dev, "Partner adapter not ready\n");
-		retrc = 0;
-	} else if (rc != 0) {
-		dev_warn(hostdata->dev, "Error %d opening adapter\n", rc);
-		goto reg_crq_failed;
-	}
-
-	queue->cur = 0;
-	spin_lock_init(&queue->lock);
-
-	tasklet_init(&hostdata->srp_task, (void *)rpavscsi_task,
-		     (unsigned long)hostdata);
-
-	if (request_irq(vdev->irq,
-			rpavscsi_handle_event,
-			0, "ibmvscsi", (void *)hostdata) != 0) {
-		dev_err(hostdata->dev, "couldn't register irq 0x%x\n",
-			vdev->irq);
-		goto req_irq_failed;
-	}
-
-	rc = vio_enable_interrupts(vdev);
-	if (rc != 0) {
-		dev_err(hostdata->dev, "Error %d enabling interrupts!!!\n", rc);
-		goto req_irq_failed;
-	}
-
-	return retrc;
-
-      req_irq_failed:
-	tasklet_kill(&hostdata->srp_task);
-	rc = 0;
-	do {
-		if (rc)
-			msleep(100);
-		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
-	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
-      reg_crq_failed:
-	dma_unmap_single(hostdata->dev,
-			 queue->msg_token,
-			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
-      map_failed:
-	free_page((unsigned long)queue->msgs);
-      malloc_failed:
-	return -1;
-}
-
-/**
- * reenable_crq_queue: - reenables a crq after
- * @queue:	crq_queue to initialize and register
- * @hostdata:	ibmvscsi_host_data of host
- *
- */
-static int rpavscsi_reenable_crq_queue(struct crq_queue *queue,
-				       struct ibmvscsi_host_data *hostdata)
-{
-	int rc = 0;
-	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
-
-	/* Re-enable the CRQ */
-	do {
-		if (rc)
-			msleep(100);
-		rc = plpar_hcall_norets(H_ENABLE_CRQ, vdev->unit_address);
-	} while ((rc == H_IN_PROGRESS) || (rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
-
-	if (rc)
-		dev_err(hostdata->dev, "Error %d enabling adapter\n", rc);
-	return rc;
-}
-
-/**
- * rpavscsi_resume: - resume after suspend
- * @hostdata:	ibmvscsi_host_data of host
- *
- */
-static int rpavscsi_resume(struct ibmvscsi_host_data *hostdata)
-{
-	vio_disable_interrupts(to_vio_dev(hostdata->dev));
-	tasklet_schedule(&hostdata->srp_task);
-	return 0;
-}
-
-struct ibmvscsi_ops rpavscsi_ops = {
-	.init_crq_queue = rpavscsi_init_crq_queue,
-	.release_crq_queue = rpavscsi_release_crq_queue,
-	.reset_crq_queue = rpavscsi_reset_crq_queue,
-	.reenable_crq_queue = rpavscsi_reenable_crq_queue,
-	.send_crq = rpavscsi_send_crq,
-	.resume = rpavscsi_resume,
-};
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 467dc38246f..e3f29f61cbc 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -192,7 +192,7 @@ static const struct ipr_chip_t ipr_chip[] = {
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
 };
 
-static int ipr_max_bus_speeds [] = {
+static int ipr_max_bus_speeds[] = {
 	IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
 };
 
@@ -562,10 +562,27 @@ static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
 	trace_entry->u.add_data = add_data;
 }
 #else
-#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
+#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
 #endif
 
 /**
+ * ipr_lock_and_done - Acquire lock and complete command
+ * @ipr_cmd:	ipr command struct
+ *
+ * Return value:
+ *	none
+ **/
+static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
+{
+	unsigned long lock_flags;
+	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	ipr_cmd->done(ipr_cmd);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+}
+
+/**
  * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
  * @ipr_cmd:	ipr command struct
  *
@@ -611,34 +628,50 @@ static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
+static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
+			      void (*fast_done) (struct ipr_cmnd *))
 {
 	ipr_reinit_ipr_cmnd(ipr_cmd);
 	ipr_cmd->u.scratch = 0;
 	ipr_cmd->sibling = NULL;
+	ipr_cmd->fast_done = fast_done;
 	init_timer(&ipr_cmd->timer);
 }
 
 /**
- * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
+ * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
  * @ioa_cfg:	ioa config struct
  *
  * Return value:
  * 	pointer to ipr command struct
  **/
 static
-struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
+struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
 {
 	struct ipr_cmnd *ipr_cmd;
 
 	ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
 	list_del(&ipr_cmd->queue);
-	ipr_init_ipr_cmnd(ipr_cmd);
 
 	return ipr_cmd;
 }
 
 /**
+ * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
+ * @ioa_cfg:	ioa config struct
+ *
+ * Return value:
+ *	pointer to ipr command struct
+ **/
+static
+struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
+{
+	struct ipr_cmnd *ipr_cmd = __ipr_get_free_ipr_cmnd(ioa_cfg);
+	ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
+	return ipr_cmd;
+}
+
+/**
  * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
  * @ioa_cfg:	ioa config struct
  * @clr_ints:     interrupts to clear
@@ -1002,7 +1035,7 @@ static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
  **/
 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
 {
-	switch(proto) {
+	switch (proto) {
 	case IPR_PROTO_SATA:
 	case IPR_PROTO_SAS_STP:
 		res->ata_class = ATA_DEV_ATA;
@@ -3043,7 +3076,7 @@ static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
 }
 
 #else
-#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
+#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
 #endif
 
 /**
@@ -3055,7 +3088,7 @@ static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
  **/
 static void ipr_release_dump(struct kref *kref)
 {
-	struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
+	struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
 	struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
 	unsigned long lock_flags = 0;
 	int i;
@@ -3142,7 +3175,7 @@ restart:
 				break;
 			}
 		}
-	} while(did_work);
+	} while (did_work);
 
 	list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
 		if (res->add_to_ml) {
@@ -3268,7 +3301,7 @@ static ssize_t ipr_show_log_level(struct device *dev,
  * 	number of bytes printed to buffer
  **/
 static ssize_t ipr_store_log_level(struct device *dev,
-			           struct device_attribute *attr,
+				   struct device_attribute *attr,
 				   const char *buf, size_t count)
 {
 	struct Scsi_Host *shost = class_to_shost(dev);
@@ -3315,7 +3348,7 @@ static ssize_t ipr_store_diagnostics(struct device *dev,
 		return -EACCES;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -3682,7 +3715,7 @@ static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
 	unsigned long lock_flags;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -3746,7 +3779,7 @@ static ssize_t ipr_store_update_fw(struct device *dev,
 	len = snprintf(fname, 99, "%s", buf);
 	fname[len-1] = '\0';
 
-	if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
+	if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
 		dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
 		return -EIO;
 	}
@@ -4612,7 +4645,7 @@ static int ipr_slave_alloc(struct scsi_device *sdev)
  * Return value:
  * 	SUCCESS / FAILED
  **/
-static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
+static int __ipr_eh_host_reset(struct scsi_cmnd *scsi_cmd)
 {
 	struct ipr_ioa_cfg *ioa_cfg;
 	int rc;
@@ -4634,7 +4667,7 @@ static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
 	return rc;
 }
 
-static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
+static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
 {
 	int rc;
 
@@ -4701,7 +4734,7 @@ static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
 	}
 
 	LEAVE;
-	return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
+	return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
 }
 
 /**
@@ -4725,7 +4758,7 @@ static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
 
 	ENTER;
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -4753,7 +4786,7 @@ static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
  * Return value:
  *	SUCCESS / FAILED
  **/
-static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
+static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
 {
 	struct ipr_cmnd *ipr_cmd;
 	struct ipr_ioa_cfg *ioa_cfg;
@@ -4811,10 +4844,10 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
 	res->resetting_device = 0;
 
 	LEAVE;
-	return (rc ? FAILED : SUCCESS);
+	return rc ? FAILED : SUCCESS;
 }
 
-static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
+static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
 {
 	int rc;
 
@@ -4910,7 +4943,7 @@ static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
  * Return value:
  *	SUCCESS / FAILED
  **/
-static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
+static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
 {
 	struct ipr_cmnd *ipr_cmd;
 	struct ipr_ioa_cfg *ioa_cfg;
@@ -4979,7 +5012,7 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
 		res->needs_sync_complete = 1;
 
 	LEAVE;
-	return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
+	return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
 }
 
 /**
@@ -4989,7 +5022,7 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
  * Return value:
  * 	SUCCESS / FAILED
  **/
-static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
+static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
 {
 	unsigned long flags;
 	int rc;
@@ -5116,8 +5149,9 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 	u16 cmd_index;
 	int num_hrrq = 0;
 	int irq_none = 0;
-	struct ipr_cmnd *ipr_cmd;
+	struct ipr_cmnd *ipr_cmd, *temp;
 	irqreturn_t rc = IRQ_NONE;
+	LIST_HEAD(doneq);
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
 
@@ -5138,8 +5172,8 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 
 			if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
 				ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
-				spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-				return IRQ_HANDLED;
+				rc = IRQ_HANDLED;
+				goto unlock_out;
 			}
 
 			ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
@@ -5148,9 +5182,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 
 			ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
 
-			list_del(&ipr_cmd->queue);
-			del_timer(&ipr_cmd->timer);
-			ipr_cmd->done(ipr_cmd);
+			list_move_tail(&ipr_cmd->queue, &doneq);
 
 			rc = IRQ_HANDLED;
 
@@ -5180,8 +5212,8 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 		} else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
 			   int_reg & IPR_PCII_HRRQ_UPDATED) {
 			ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
-			spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-			return IRQ_HANDLED;
+			rc = IRQ_HANDLED;
+			goto unlock_out;
 		} else
 			break;
 	}
@@ -5189,7 +5221,14 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 	if (unlikely(rc == IRQ_NONE))
 		rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
 
+unlock_out:
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
+		list_del(&ipr_cmd->queue);
+		del_timer(&ipr_cmd->timer);
+		ipr_cmd->fast_done(ipr_cmd);
+	}
+
 	return rc;
 }
 
@@ -5770,21 +5809,28 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 	struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
 	u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
+	unsigned long lock_flags;
 
 	scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
 
 	if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
-		scsi_dma_unmap(ipr_cmd->scsi_cmd);
+		scsi_dma_unmap(scsi_cmd);
+
+		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
 		list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
 		scsi_cmd->scsi_done(scsi_cmd);
-	} else
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	} else {
+		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
 		ipr_erp_start(ioa_cfg, ipr_cmd);
+		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	}
 }
 
 /**
  * ipr_queuecommand - Queue a mid-layer request
+ * @shost:		scsi host struct
  * @scsi_cmd:	scsi command struct
- * @done:		done function
  *
  * This function queues a request generated by the mid-layer.
  *
@@ -5793,61 +5839,61 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
  *	SCSI_MLQUEUE_DEVICE_BUSY if device is busy
  *	SCSI_MLQUEUE_HOST_BUSY if host is busy
  **/
-static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
-			    void (*done) (struct scsi_cmnd *))
+static int ipr_queuecommand(struct Scsi_Host *shost,
+			    struct scsi_cmnd *scsi_cmd)
 {
 	struct ipr_ioa_cfg *ioa_cfg;
 	struct ipr_resource_entry *res;
 	struct ipr_ioarcb *ioarcb;
 	struct ipr_cmnd *ipr_cmd;
-	int rc = 0;
+	unsigned long lock_flags;
+	int rc;
 
-	scsi_cmd->scsi_done = done;
-	ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
-	res = scsi_cmd->device->hostdata;
+	ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+
+	spin_lock_irqsave(shost->host_lock, lock_flags);
 	scsi_cmd->result = (DID_OK << 16);
+	res = scsi_cmd->device->hostdata;
 
 	/*
 	 * We are currently blocking all devices due to a host reset
 	 * We have told the host to stop giving us new requests, but
 	 * ERP ops don't count. FIXME
 	 */
-	if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
+	if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) {
+		spin_unlock_irqrestore(shost->host_lock, lock_flags);
 		return SCSI_MLQUEUE_HOST_BUSY;
+	}
 
 	/*
 	 * FIXME - Create scsi_set_host_offline interface
 	 *  and the ioa_is_dead check can be removed
 	 */
 	if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
-		memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
-		scsi_cmd->result = (DID_NO_CONNECT << 16);
-		scsi_cmd->scsi_done(scsi_cmd);
-		return 0;
+		spin_unlock_irqrestore(shost->host_lock, lock_flags);
+		goto err_nodev;
+	}
+
+	if (ipr_is_gata(res) && res->sata_port) {
+		rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
+		spin_unlock_irqrestore(shost->host_lock, lock_flags);
+		return rc;
 	}
 
-	if (ipr_is_gata(res) && res->sata_port)
-		return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
+	ipr_cmd = __ipr_get_free_ipr_cmnd(ioa_cfg);
+	spin_unlock_irqrestore(shost->host_lock, lock_flags);
 
-	ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+	ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
 	ioarcb = &ipr_cmd->ioarcb;
-	list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
 
 	memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
 	ipr_cmd->scsi_cmd = scsi_cmd;
-	ioarcb->res_handle = res->res_handle;
-	ipr_cmd->done = ipr_scsi_done;
-	ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
+	ipr_cmd->done = ipr_scsi_eh_done;
 
 	if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
 		if (scsi_cmd->underflow == 0)
 			ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
 
-		if (res->needs_sync_complete) {
-			ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
-			res->needs_sync_complete = 0;
-		}
-
 		ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
 		if (ipr_is_gscsi(res))
 			ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
@@ -5859,23 +5905,46 @@ static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
 	    (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
 		ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
 
-	if (likely(rc == 0)) {
-		if (ioa_cfg->sis64)
-			rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
-		else
-			rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
-	}
+	if (ioa_cfg->sis64)
+		rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
+	else
+		rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
 
-	if (unlikely(rc != 0)) {
-		list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+	spin_lock_irqsave(shost->host_lock, lock_flags);
+	if (unlikely(rc || (!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))) {
+		list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+		spin_unlock_irqrestore(shost->host_lock, lock_flags);
+		if (!rc)
+			scsi_dma_unmap(scsi_cmd);
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 
+	if (unlikely(ioa_cfg->ioa_is_dead)) {
+		list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+		spin_unlock_irqrestore(shost->host_lock, lock_flags);
+		scsi_dma_unmap(scsi_cmd);
+		goto err_nodev;
+	}
+
+	ioarcb->res_handle = res->res_handle;
+	if (res->needs_sync_complete) {
+		ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
+		res->needs_sync_complete = 0;
+	}
+	list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
+	ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
 	ipr_send_command(ipr_cmd);
+	spin_unlock_irqrestore(shost->host_lock, lock_flags);
 	return 0;
-}
 
-static DEF_SCSI_QCMD(ipr_queuecommand)
+err_nodev:
+	spin_lock_irqsave(shost->host_lock, lock_flags);
+	memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+	scsi_cmd->result = (DID_NO_CONNECT << 16);
+	scsi_cmd->scsi_done(scsi_cmd);
+	spin_unlock_irqrestore(shost->host_lock, lock_flags);
+	return 0;
+}
 
 /**
  * ipr_ioctl - IOCTL handler
@@ -5907,7 +5976,7 @@ static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
  * Return value:
  * 	pointer to buffer with description string
  **/
-static const char * ipr_ioa_info(struct Scsi_Host *host)
+static const char *ipr_ioa_info(struct Scsi_Host *host)
 {
 	static char buffer[512];
 	struct ipr_ioa_cfg *ioa_cfg;
@@ -5965,7 +6034,7 @@ static void ipr_ata_phy_reset(struct ata_port *ap)
 
 	ENTER;
 	spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
@@ -6005,7 +6074,7 @@ static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
 	unsigned long flags;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
@@ -6330,7 +6399,7 @@ static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
 	int i;
 
 	if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
-		for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
+		for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
 			if (__is_processor(ipr_blocked_processors[i]))
 				return 1;
 		}
@@ -6608,7 +6677,7 @@ static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
  * 	none
  **/
 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
-					  	struct ipr_mode_pages *mode_pages)
+					  struct ipr_mode_pages *mode_pages)
 {
 	int i, entry_length;
 	struct ipr_dev_bus_entry *bus;
@@ -8022,7 +8091,7 @@ static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
 		ipr_reinit_ipr_cmnd(ipr_cmd);
 		ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
 		rc = ipr_cmd->job_step(ipr_cmd);
-	} while(rc == IPR_RC_JOB_CONTINUE);
+	} while (rc == IPR_RC_JOB_CONTINUE);
 }
 
 /**
@@ -8283,7 +8352,7 @@ static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
 	}
 
 	if (ioa_cfg->ipr_cmd_pool)
-		pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
+		pci_pool_destroy(ioa_cfg->ipr_cmd_pool);
 
 	kfree(ioa_cfg->ipr_cmnd_list);
 	kfree(ioa_cfg->ipr_cmnd_list_dma);
@@ -8363,8 +8432,8 @@ static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
 	dma_addr_t dma_addr;
 	int i;
 
-	ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
-						 sizeof(struct ipr_cmnd), 512, 0);
+	ioa_cfg->ipr_cmd_pool = pci_pool_create(IPR_NAME, ioa_cfg->pdev,
+						sizeof(struct ipr_cmnd), 512, 0);
 
 	if (!ioa_cfg->ipr_cmd_pool)
 		return -ENOMEM;
@@ -8378,7 +8447,7 @@ static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
 	}
 
 	for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
-		ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
+		ipr_cmd = pci_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
 
 		if (!ipr_cmd) {
 			ipr_free_cmd_blks(ioa_cfg);
@@ -8775,8 +8844,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
 
 	ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
 	memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
-	ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
-		      sata_port_info.flags, &ipr_sata_ops);
+	ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
 
 	ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
 
@@ -8964,7 +9032,7 @@ static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
 	int target, lun;
 
 	for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
-		for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
+		for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++)
 			scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
 }
 
@@ -9010,7 +9078,7 @@ static void __ipr_remove(struct pci_dev *pdev)
 	ENTER;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
@@ -9020,7 +9088,7 @@ static void __ipr_remove(struct pci_dev *pdev)
 
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
 	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
-	flush_work_sync(&ioa_cfg->work_q);
+	flush_work(&ioa_cfg->work_q);
 	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
 
 	spin_lock(&ipr_driver_lock);
@@ -9139,7 +9207,7 @@ static void ipr_shutdown(struct pci_dev *pdev)
 	unsigned long lock_flags = 0;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-	while(ioa_cfg->in_reset_reload) {
+	while (ioa_cfg->in_reset_reload) {
 		spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 		wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
 		spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -9228,7 +9296,7 @@ static struct pci_device_id ipr_pci_table[] __devinitdata = {
 };
 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
 
-static struct pci_error_handlers ipr_err_handler = {
+static const struct pci_error_handlers ipr_err_handler = {
 	.error_detected = ipr_pci_error_detected,
 	.slot_reset = ipr_pci_slot_reset,
 };
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 153b8bd91d1..c8a137f83bb 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -38,8 +38,8 @@
 /*
  * Literals
  */
-#define IPR_DRIVER_VERSION "2.5.3"
-#define IPR_DRIVER_DATE "(March 10, 2012)"
+#define IPR_DRIVER_VERSION "2.5.4"
+#define IPR_DRIVER_DATE "(July 11, 2012)"
 
 /*
  * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding
@@ -1525,6 +1525,7 @@ struct ipr_cmnd {
 	struct ata_queued_cmd *qc;
 	struct completion completion;
 	struct timer_list timer;
+	void (*fast_done) (struct ipr_cmnd *);
 	void (*done) (struct ipr_cmnd *);
 	int (*job_step) (struct ipr_cmnd *);
 	int (*job_step_failed) (struct ipr_cmnd *);
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 45385f53164..609dafd661d 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -492,7 +492,7 @@ static void sci_controller_process_completions(struct isci_host *ihost)
 	u32 event_cycle;
 
 	dev_dbg(&ihost->pdev->dev,
-		"%s: completion queue begining get:0x%08x\n",
+		"%s: completion queue beginning get:0x%08x\n",
 		__func__,
 		ihost->completion_queue_get);
 
@@ -1044,7 +1044,7 @@ static enum sci_status sci_controller_start(struct isci_host *ihost,
 	return SCI_SUCCESS;
 }
 
-void isci_host_scan_start(struct Scsi_Host *shost)
+void isci_host_start(struct Scsi_Host *shost)
 {
 	struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha;
 	unsigned long tmo = sci_controller_get_suggested_start_timeout(ihost);
@@ -1079,7 +1079,6 @@ static void sci_controller_completion_handler(struct isci_host *ihost)
 
 void ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_task *task)
 {
-	task->lldd_task = NULL;
 	if (!test_bit(IREQ_ABORT_PATH_ACTIVE, &ireq->flags) &&
 	    !(task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
 		if (test_bit(IREQ_COMPLETE_IN_TARGET, &ireq->flags)) {
@@ -1087,16 +1086,19 @@ void ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_ta
 			dev_dbg(&ihost->pdev->dev,
 				"%s: Normal - ireq/task = %p/%p\n",
 				__func__, ireq, task);
-
+			task->lldd_task = NULL;
 			task->task_done(task);
 		} else {
 			dev_dbg(&ihost->pdev->dev,
 				"%s: Error - ireq/task = %p/%p\n",
 				__func__, ireq, task);
-
+			if (sas_protocol_ata(task->task_proto))
+				task->lldd_task = NULL;
 			sas_task_abort(task);
 		}
-	}
+	} else
+		task->lldd_task = NULL;
+
 	if (test_and_clear_bit(IREQ_ABORT_PATH_ACTIVE, &ireq->flags))
 		wake_up_all(&ihost->eventq);
 
@@ -1120,10 +1122,16 @@ void isci_host_completion_routine(unsigned long data)
 	sci_controller_completion_handler(ihost);
 	spin_unlock_irq(&ihost->scic_lock);
 
-	/* the coalesence timeout doubles at each encoding step, so
+	/*
+	 * we subtract SCI_MAX_PORTS to account for the number of dummy TCs
+	 * issued for hardware issue workaround
+	 */
+	active = isci_tci_active(ihost) - SCI_MAX_PORTS;
+
+	/*
+	 * the coalesence timeout doubles at each encoding step, so
 	 * update it based on the ilog2 value of the outstanding requests
 	 */
-	active = isci_tci_active(ihost);
 	writel(SMU_ICC_GEN_VAL(NUMBER, active) |
 	       SMU_ICC_GEN_VAL(TIMER, ISCI_COALESCE_BASE + ilog2(active)),
 	       &ihost->smu_registers->interrupt_coalesce_control);
@@ -1973,7 +1981,7 @@ static void sci_controller_afe_initialization(struct isci_host *ihost)
 	}
 
 	for (phy_id = 0; phy_id < SCI_MAX_PHYS; phy_id++) {
-		struct scu_afe_transceiver *xcvr = &afe->scu_afe_xcvr[phy_id];
+		struct scu_afe_transceiver __iomem *xcvr = &afe->scu_afe_xcvr[phy_id];
 		const struct sci_phy_oem_params *oem_phy = &oem->phys[phy_id];
 		int cable_length_long =
 			is_long_cable(phy_id, cable_selection_mask);
diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h
index 9ab58e0540e..4911310a38f 100644
--- a/drivers/scsi/isci/host.h
+++ b/drivers/scsi/isci/host.h
@@ -473,7 +473,7 @@ void sci_controller_remote_device_stopped(struct isci_host *ihost,
 
 enum sci_status sci_controller_continue_io(struct isci_request *ireq);
 int isci_host_scan_finished(struct Scsi_Host *, unsigned long);
-void isci_host_scan_start(struct Scsi_Host *);
+void isci_host_start(struct Scsi_Host *);
 u16 isci_alloc_tag(struct isci_host *ihost);
 enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag);
 void isci_tci_free(struct isci_host *ihost, u16 tci);
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index 92c1d86d1fc..b74050b95d6 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -156,7 +156,7 @@ static struct scsi_host_template isci_sht = {
 	.target_alloc			= sas_target_alloc,
 	.slave_configure		= sas_slave_configure,
 	.scan_finished			= isci_host_scan_finished,
-	.scan_start			= isci_host_scan_start,
+	.scan_start			= isci_host_start,
 	.change_queue_depth		= sas_change_queue_depth,
 	.change_queue_type		= sas_change_queue_type,
 	.bios_param			= sas_bios_param,
@@ -222,7 +222,7 @@ static struct sas_domain_function_template isci_transport_ops  = {
  * @isci_host: This parameter specifies the lldd specific wrapper for the
  *    libsas sas_ha struct.
  *
- * This method returns an error code indicating sucess or failure. The user
+ * This method returns an error code indicating success or failure. The user
  * should check for possible memory allocation error return otherwise, a zero
  * indicates success.
  */
@@ -644,7 +644,6 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic
 						orom->hdr.version)) {
 			dev_warn(&pdev->dev,
 				 "[%d]: invalid oem parameters detected, falling back to firmware\n", i);
-			devm_kfree(&pdev->dev, orom);
 			orom = NULL;
 			break;
 		}
@@ -722,11 +721,67 @@ static void __devexit isci_pci_remove(struct pci_dev *pdev)
 	}
 }
 
+#ifdef CONFIG_PM
+static int isci_suspend(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct isci_host *ihost;
+	int i;
+
+	for_each_isci_host(i, ihost, pdev) {
+		sas_suspend_ha(&ihost->sas_ha);
+		isci_host_deinit(ihost);
+	}
+
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+static int isci_resume(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct isci_host *ihost;
+	int rc, i;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+
+	rc = pcim_enable_device(pdev);
+	if (rc) {
+		dev_err(&pdev->dev,
+			"enabling device failure after resume(%d)\n", rc);
+		return rc;
+	}
+
+	pci_set_master(pdev);
+
+	for_each_isci_host(i, ihost, pdev) {
+		sas_prep_resume_ha(&ihost->sas_ha);
+
+		isci_host_init(ihost);
+		isci_host_start(ihost->sas_ha.core.shost);
+		wait_for_start(ihost);
+
+		sas_resume_ha(&ihost->sas_ha);
+	}
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(isci_pm_ops, isci_suspend, isci_resume);
+#endif
+
 static struct pci_driver isci_pci_driver = {
 	.name		= DRV_NAME,
 	.id_table	= isci_id_table,
 	.probe		= isci_pci_probe,
 	.remove		= __devexit_p(isci_pci_remove),
+#ifdef CONFIG_PM
+	.driver.pm      = &isci_pm_ops,
+#endif
 };
 
 static __init int isci_init(void)
diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c
index 18f43d4c30b..cb87b2ef7c9 100644
--- a/drivers/scsi/isci/phy.c
+++ b/drivers/scsi/isci/phy.c
@@ -169,7 +169,7 @@ sci_phy_link_layer_initialization(struct isci_phy *iphy,
 	phy_cap.gen1_no_ssc = 1;
 	if (ihost->oem_parameters.controller.do_enable_ssc) {
 		struct scu_afe_registers __iomem *afe = &ihost->scu_registers->afe;
-		struct scu_afe_transceiver *xcvr = &afe->scu_afe_xcvr[phy_idx];
+		struct scu_afe_transceiver __iomem *xcvr = &afe->scu_afe_xcvr[phy_idx];
 		struct isci_pci_info *pci_info = to_pci_info(ihost->pdev);
 		bool en_sas = false;
 		bool en_sata = false;
@@ -1205,6 +1205,7 @@ static void scu_link_layer_start_oob(struct isci_phy *iphy)
 	/** Reset OOB sequence - start */
 	val = readl(&ll->phy_configuration);
 	val &= ~(SCU_SAS_PCFG_GEN_BIT(OOB_RESET) |
+		 SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE) |
 		 SCU_SAS_PCFG_GEN_BIT(HARD_RESET));
 	writel(val, &ll->phy_configuration);
 	readl(&ll->phy_configuration); /* flush */
@@ -1236,6 +1237,7 @@ static void scu_link_layer_tx_hard_reset(
 	 * to the starting state. */
 	phy_configuration_value =
 		readl(&iphy->link_layer_registers->phy_configuration);
+	phy_configuration_value &= ~(SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE));
 	phy_configuration_value |=
 		(SCU_SAS_PCFG_GEN_BIT(HARD_RESET) |
 		 SCU_SAS_PCFG_GEN_BIT(OOB_RESET));
diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c
index 2fb85bf7544..13098b09a82 100644
--- a/drivers/scsi/isci/port.c
+++ b/drivers/scsi/isci/port.c
@@ -212,7 +212,7 @@ static void isci_port_link_up(struct isci_host *isci_host,
 		memcpy(iphy->sas_phy.attached_sas_addr,
 		       iphy->frame_rcvd.iaf.sas_addr, SAS_ADDR_SIZE);
 	} else {
-		dev_err(&isci_host->pdev->dev, "%s: unkown target\n", __func__);
+		dev_err(&isci_host->pdev->dev, "%s: unknown target\n", __func__);
 		success = false;
 	}
 
diff --git a/drivers/scsi/isci/probe_roms.c b/drivers/scsi/isci/probe_roms.c
index 4d95654c3fd..8ac646e5edd 100644
--- a/drivers/scsi/isci/probe_roms.c
+++ b/drivers/scsi/isci/probe_roms.c
@@ -104,7 +104,6 @@ struct isci_orom *isci_request_oprom(struct pci_dev *pdev)
 
 	if (i >= len) {
 		dev_err(&pdev->dev, "oprom parse error\n");
-		devm_kfree(&pdev->dev, rom);
 		rom = NULL;
 	}
 	pci_unmap_biosrom(oprom);
diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h
index a703b9ce0c2..c7ee81d0112 100644
--- a/drivers/scsi/isci/remote_node_context.h
+++ b/drivers/scsi/isci/remote_node_context.h
@@ -212,7 +212,7 @@ enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context
 						      scics_sds_remote_node_context_callback callback,
 						      void *callback_parameter);
 enum sci_status sci_remote_node_context_suspend(struct sci_remote_node_context *sci_rnc,
-						     u32 suspend_type,
+						     enum sci_remote_node_suspension_reasons reason,
 						     u32 suspension_code);
 enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *sci_rnc,
 						    scics_sds_remote_node_context_callback cb_fn,
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index 7a0431c7349..c1bafc3f3fb 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -2240,7 +2240,7 @@ static enum sci_status atapi_data_tc_completion_handler(struct isci_request *ire
 			status = ireq->sci_status;
 			sci_change_state(&idev->sm, SCI_STP_DEV_ATAPI_ERROR);
 		} else {
-			/* If receiving any non-sucess TC status, no UF
+			/* If receiving any non-success TC status, no UF
 			 * received yet, then an UF for the status fis
 			 * is coming after (XXX: suspect this is
 			 * actually a protocol error or a bug like the
diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c
index 6bc74eb012c..b6f19a1db78 100644
--- a/drivers/scsi/isci/task.c
+++ b/drivers/scsi/isci/task.c
@@ -532,7 +532,7 @@ int isci_task_abort_task(struct sas_task *task)
 		/* The request has already completed and there
 		* is nothing to do here other than to set the task
 		* done bit, and indicate that the task abort function
-		* was sucessful.
+		* was successful.
 		*/
 		spin_lock_irqsave(&task->task_state_lock, flags);
 		task->task_state_flags |= SAS_TASK_STATE_DONE;
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 922086105b4..1b91ca0dc1e 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -55,7 +55,7 @@ static struct scsi_transport_template *iscsi_sw_tcp_scsi_transport;
 static struct scsi_host_template iscsi_sw_tcp_sht;
 static struct iscsi_transport iscsi_sw_tcp_transport;
 
-static unsigned int iscsi_max_lun = 512;
+static unsigned int iscsi_max_lun = ~0;
 module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
 
 static int iscsi_sw_tcp_dbg;
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index a59fcdc8fd6..bdb81cda840 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -580,10 +580,7 @@ int sas_ata_init(struct domain_device *found_dev)
 	struct ata_port *ap;
 	int rc;
 
-	ata_host_init(&found_dev->sata_dev.ata_host,
-		      ha->dev,
-		      sata_port_info.flags,
-		      &sas_sata_ops);
+	ata_host_init(&found_dev->sata_dev.ata_host, ha->dev, &sas_sata_ops);
 	ap = ata_sas_port_alloc(&found_dev->sata_dev.ata_host,
 				&sata_port_info,
 				shost);
@@ -700,6 +697,92 @@ void sas_probe_sata(struct asd_sas_port *port)
 		if (ata_dev_disabled(sas_to_ata_dev(dev)))
 			sas_fail_probe(dev, __func__, -ENODEV);
 	}
+
+}
+
+static bool sas_ata_flush_pm_eh(struct asd_sas_port *port, const char *func)
+{
+	struct domain_device *dev, *n;
+	bool retry = false;
+
+	list_for_each_entry_safe(dev, n, &port->dev_list, dev_list_node) {
+		int rc;
+
+		if (!dev_is_sata(dev))
+			continue;
+
+		sas_ata_wait_eh(dev);
+		rc = dev->sata_dev.pm_result;
+		if (rc == -EAGAIN)
+			retry = true;
+		else if (rc) {
+			/* since we don't have a
+			 * ->port_{suspend|resume} routine in our
+			 *  ata_port ops, and no entanglements with
+			 *  acpi, suspend should just be mechanical trip
+			 *  through eh, catch cases where these
+			 *  assumptions are invalidated
+			 */
+			WARN_ONCE(1, "failed %s %s error: %d\n", func,
+				 dev_name(&dev->rphy->dev), rc);
+		}
+
+		/* if libata failed to power manage the device, tear it down */
+		if (ata_dev_disabled(sas_to_ata_dev(dev)))
+			sas_fail_probe(dev, func, -ENODEV);
+	}
+
+	return retry;
+}
+
+void sas_suspend_sata(struct asd_sas_port *port)
+{
+	struct domain_device *dev;
+
+ retry:
+	mutex_lock(&port->ha->disco_mutex);
+	list_for_each_entry(dev, &port->dev_list, dev_list_node) {
+		struct sata_device *sata;
+
+		if (!dev_is_sata(dev))
+			continue;
+
+		sata = &dev->sata_dev;
+		if (sata->ap->pm_mesg.event == PM_EVENT_SUSPEND)
+			continue;
+
+		sata->pm_result = -EIO;
+		ata_sas_port_async_suspend(sata->ap, &sata->pm_result);
+	}
+	mutex_unlock(&port->ha->disco_mutex);
+
+	if (sas_ata_flush_pm_eh(port, __func__))
+		goto retry;
+}
+
+void sas_resume_sata(struct asd_sas_port *port)
+{
+	struct domain_device *dev;
+
+ retry:
+	mutex_lock(&port->ha->disco_mutex);
+	list_for_each_entry(dev, &port->dev_list, dev_list_node) {
+		struct sata_device *sata;
+
+		if (!dev_is_sata(dev))
+			continue;
+
+		sata = &dev->sata_dev;
+		if (sata->ap->pm_mesg.event == PM_EVENT_ON)
+			continue;
+
+		sata->pm_result = -EIO;
+		ata_sas_port_async_resume(sata->ap, &sata->pm_result);
+	}
+	mutex_unlock(&port->ha->disco_mutex);
+
+	if (sas_ata_flush_pm_eh(port, __func__))
+		goto retry;
 }
 
 /**
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index 3e9dc1a8435..a0c3003e0c7 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -24,6 +24,7 @@
 
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
+#include <linux/async.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_eh.h>
 #include "sas_internal.h"
@@ -180,16 +181,18 @@ int sas_notify_lldd_dev_found(struct domain_device *dev)
 	struct Scsi_Host *shost = sas_ha->core.shost;
 	struct sas_internal *i = to_sas_internal(shost->transportt);
 
-	if (i->dft->lldd_dev_found) {
-		res = i->dft->lldd_dev_found(dev);
-		if (res) {
-			printk("sas: driver on pcidev %s cannot handle "
-			       "device %llx, error:%d\n",
-			       dev_name(sas_ha->dev),
-			       SAS_ADDR(dev->sas_addr), res);
-		}
-		kref_get(&dev->kref);
+	if (!i->dft->lldd_dev_found)
+		return 0;
+
+	res = i->dft->lldd_dev_found(dev);
+	if (res) {
+		printk("sas: driver on pcidev %s cannot handle "
+		       "device %llx, error:%d\n",
+		       dev_name(sas_ha->dev),
+		       SAS_ADDR(dev->sas_addr), res);
 	}
+	set_bit(SAS_DEV_FOUND, &dev->state);
+	kref_get(&dev->kref);
 	return res;
 }
 
@@ -200,7 +203,10 @@ void sas_notify_lldd_dev_gone(struct domain_device *dev)
 	struct Scsi_Host *shost = sas_ha->core.shost;
 	struct sas_internal *i = to_sas_internal(shost->transportt);
 
-	if (i->dft->lldd_dev_gone) {
+	if (!i->dft->lldd_dev_gone)
+		return;
+
+	if (test_and_clear_bit(SAS_DEV_FOUND, &dev->state)) {
 		i->dft->lldd_dev_gone(dev);
 		sas_put_device(dev);
 	}
@@ -234,6 +240,47 @@ static void sas_probe_devices(struct work_struct *work)
 	}
 }
 
+static void sas_suspend_devices(struct work_struct *work)
+{
+	struct asd_sas_phy *phy;
+	struct domain_device *dev;
+	struct sas_discovery_event *ev = to_sas_discovery_event(work);
+	struct asd_sas_port *port = ev->port;
+	struct Scsi_Host *shost = port->ha->core.shost;
+	struct sas_internal *si = to_sas_internal(shost->transportt);
+
+	clear_bit(DISCE_SUSPEND, &port->disc.pending);
+
+	sas_suspend_sata(port);
+
+	/* lldd is free to forget the domain_device across the
+	 * suspension, we force the issue here to keep the reference
+	 * counts aligned
+	 */
+	list_for_each_entry(dev, &port->dev_list, dev_list_node)
+		sas_notify_lldd_dev_gone(dev);
+
+	/* we are suspending, so we know events are disabled and
+	 * phy_list is not being mutated
+	 */
+	list_for_each_entry(phy, &port->phy_list, port_phy_el) {
+		if (si->dft->lldd_port_formed)
+			si->dft->lldd_port_deformed(phy);
+		phy->suspended = 1;
+		port->suspended = 1;
+	}
+}
+
+static void sas_resume_devices(struct work_struct *work)
+{
+	struct sas_discovery_event *ev = to_sas_discovery_event(work);
+	struct asd_sas_port *port = ev->port;
+
+	clear_bit(DISCE_RESUME, &port->disc.pending);
+
+	sas_resume_sata(port);
+}
+
 /**
  * sas_discover_end_dev -- discover an end device (SSP, etc)
  * @end: pointer to domain device of interest
@@ -530,6 +577,8 @@ void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *port)
 		[DISCE_DISCOVER_DOMAIN] = sas_discover_domain,
 		[DISCE_REVALIDATE_DOMAIN] = sas_revalidate_domain,
 		[DISCE_PROBE] = sas_probe_devices,
+		[DISCE_SUSPEND] = sas_suspend_devices,
+		[DISCE_RESUME] = sas_resume_devices,
 		[DISCE_DESTRUCT] = sas_destruct_devices,
 	};
 
diff --git a/drivers/scsi/libsas/sas_dump.c b/drivers/scsi/libsas/sas_dump.c
index fc460933575..cd6f99c1ae7 100644
--- a/drivers/scsi/libsas/sas_dump.c
+++ b/drivers/scsi/libsas/sas_dump.c
@@ -41,6 +41,7 @@ static const char *sas_phye_str[] = {
 	[1] = "PHYE_OOB_DONE",
 	[2] = "PHYE_OOB_ERROR",
 	[3] = "PHYE_SPINUP_HOLD",
+	[4] = "PHYE_RESUME_TIMEOUT",
 };
 
 void sas_dprint_porte(int phyid, enum port_event pe)
diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c
index 789c4d8bb7a..aadbd5314c5 100644
--- a/drivers/scsi/libsas/sas_event.c
+++ b/drivers/scsi/libsas/sas_event.c
@@ -134,7 +134,7 @@ static void notify_port_event(struct asd_sas_phy *phy, enum port_event event)
 			&phy->port_events[event].work, ha);
 }
 
-static void notify_phy_event(struct asd_sas_phy *phy, enum phy_event event)
+void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event)
 {
 	struct sas_ha_struct *ha = phy->ha;
 
@@ -159,7 +159,7 @@ int sas_init_events(struct sas_ha_struct *sas_ha)
 
 	sas_ha->notify_ha_event = notify_ha_event;
 	sas_ha->notify_port_event = notify_port_event;
-	sas_ha->notify_phy_event = notify_phy_event;
+	sas_ha->notify_phy_event = sas_notify_phy_event;
 
 	return 0;
 }
diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index 014297c0588..dbc8a793fd8 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -178,7 +178,7 @@ Undo_phys:
 	return error;
 }
 
-int sas_unregister_ha(struct sas_ha_struct *sas_ha)
+static void sas_disable_events(struct sas_ha_struct *sas_ha)
 {
 	/* Set the state to unregistered to avoid further unchained
 	 * events to be queued, and flush any in-progress drainers
@@ -189,7 +189,11 @@ int sas_unregister_ha(struct sas_ha_struct *sas_ha)
 	spin_unlock_irq(&sas_ha->lock);
 	__sas_drain_work(sas_ha);
 	mutex_unlock(&sas_ha->drain_mutex);
+}
 
+int sas_unregister_ha(struct sas_ha_struct *sas_ha)
+{
+	sas_disable_events(sas_ha);
 	sas_unregister_ports(sas_ha);
 
 	/* flush unregistration work */
@@ -381,6 +385,90 @@ int sas_set_phy_speed(struct sas_phy *phy,
 	return ret;
 }
 
+void sas_prep_resume_ha(struct sas_ha_struct *ha)
+{
+	int i;
+
+	set_bit(SAS_HA_REGISTERED, &ha->state);
+
+	/* clear out any stale link events/data from the suspension path */
+	for (i = 0; i < ha->num_phys; i++) {
+		struct asd_sas_phy *phy = ha->sas_phy[i];
+
+		memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE);
+		phy->port_events_pending = 0;
+		phy->phy_events_pending = 0;
+		phy->frame_rcvd_size = 0;
+	}
+}
+EXPORT_SYMBOL(sas_prep_resume_ha);
+
+static int phys_suspended(struct sas_ha_struct *ha)
+{
+	int i, rc = 0;
+
+	for (i = 0; i < ha->num_phys; i++) {
+		struct asd_sas_phy *phy = ha->sas_phy[i];
+
+		if (phy->suspended)
+			rc++;
+	}
+
+	return rc;
+}
+
+void sas_resume_ha(struct sas_ha_struct *ha)
+{
+	const unsigned long tmo = msecs_to_jiffies(25000);
+	int i;
+
+	/* deform ports on phys that did not resume
+	 * at this point we may be racing the phy coming back (as posted
+	 * by the lldd).  So we post the event and once we are in the
+	 * libsas context check that the phy remains suspended before
+	 * tearing it down.
+	 */
+	i = phys_suspended(ha);
+	if (i)
+		dev_info(ha->dev, "waiting up to 25 seconds for %d phy%s to resume\n",
+			 i, i > 1 ? "s" : "");
+	wait_event_timeout(ha->eh_wait_q, phys_suspended(ha) == 0, tmo);
+	for (i = 0; i < ha->num_phys; i++) {
+		struct asd_sas_phy *phy = ha->sas_phy[i];
+
+		if (phy->suspended) {
+			dev_warn(&phy->phy->dev, "resume timeout\n");
+			sas_notify_phy_event(phy, PHYE_RESUME_TIMEOUT);
+		}
+	}
+
+	/* all phys are back up or timed out, turn on i/o so we can
+	 * flush out disks that did not return
+	 */
+	scsi_unblock_requests(ha->core.shost);
+	sas_drain_work(ha);
+}
+EXPORT_SYMBOL(sas_resume_ha);
+
+void sas_suspend_ha(struct sas_ha_struct *ha)
+{
+	int i;
+
+	sas_disable_events(ha);
+	scsi_block_requests(ha->core.shost);
+	for (i = 0; i < ha->num_phys; i++) {
+		struct asd_sas_port *port = ha->sas_port[i];
+
+		sas_discover_event(port, DISCE_SUSPEND);
+	}
+
+	/* flush suspend events while unregistered */
+	mutex_lock(&ha->drain_mutex);
+	__sas_drain_work(ha);
+	mutex_unlock(&ha->drain_mutex);
+}
+EXPORT_SYMBOL(sas_suspend_ha);
+
 static void sas_phy_release(struct sas_phy *phy)
 {
 	kfree(phy->hostdata);
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index 507e4cf12e5..1de67964e5a 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -89,6 +89,7 @@ int sas_smp_phy_control(struct domain_device *dev, int phy_id,
 			enum phy_func phy_func, struct sas_phy_linkrates *);
 int sas_smp_get_phy_events(struct sas_phy *phy);
 
+void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event);
 void sas_device_set_phy(struct domain_device *dev, struct sas_port *port);
 struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
 struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id);
diff --git a/drivers/scsi/libsas/sas_phy.c b/drivers/scsi/libsas/sas_phy.c
index 521422e857a..cdee446c29e 100644
--- a/drivers/scsi/libsas/sas_phy.c
+++ b/drivers/scsi/libsas/sas_phy.c
@@ -94,6 +94,25 @@ static void sas_phye_spinup_hold(struct work_struct *work)
 	i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
 }
 
+static void sas_phye_resume_timeout(struct work_struct *work)
+{
+	struct asd_sas_event *ev = to_asd_sas_event(work);
+	struct asd_sas_phy *phy = ev->phy;
+
+	clear_bit(PHYE_RESUME_TIMEOUT, &phy->phy_events_pending);
+
+	/* phew, lldd got the phy back in the nick of time */
+	if (!phy->suspended) {
+		dev_info(&phy->phy->dev, "resume timeout cancelled\n");
+		return;
+	}
+
+	phy->error = 0;
+	phy->suspended = 0;
+	sas_deform_port(phy, 1);
+}
+
+
 /* ---------- Phy class registration ---------- */
 
 int sas_register_phys(struct sas_ha_struct *sas_ha)
@@ -105,6 +124,8 @@ int sas_register_phys(struct sas_ha_struct *sas_ha)
 		[PHYE_OOB_DONE] = sas_phye_oob_done,
 		[PHYE_OOB_ERROR] = sas_phye_oob_error,
 		[PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
+		[PHYE_RESUME_TIMEOUT] = sas_phye_resume_timeout,
+
 	};
 
 	static const work_func_t sas_port_event_fns[PORT_NUM_EVENTS] = {
diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c
index e884a8c58a0..1398b714c01 100644
--- a/drivers/scsi/libsas/sas_port.c
+++ b/drivers/scsi/libsas/sas_port.c
@@ -39,6 +39,49 @@ static bool phy_is_wideport_member(struct asd_sas_port *port, struct asd_sas_phy
 	return true;
 }
 
+static void sas_resume_port(struct asd_sas_phy *phy)
+{
+	struct domain_device *dev;
+	struct asd_sas_port *port = phy->port;
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct sas_internal *si = to_sas_internal(sas_ha->core.shost->transportt);
+
+	if (si->dft->lldd_port_formed)
+		si->dft->lldd_port_formed(phy);
+
+	if (port->suspended)
+		port->suspended = 0;
+	else {
+		/* we only need to handle "link returned" actions once */
+		return;
+	}
+
+	/* if the port came back:
+	 * 1/ presume every device came back
+	 * 2/ force the next revalidation to check all expander phys
+	 */
+	list_for_each_entry(dev, &port->dev_list, dev_list_node) {
+		int i, rc;
+
+		rc = sas_notify_lldd_dev_found(dev);
+		if (rc) {
+			sas_unregister_dev(port, dev);
+			continue;
+		}
+
+		if (dev->dev_type == EDGE_DEV || dev->dev_type == FANOUT_DEV) {
+			dev->ex_dev.ex_change_count = -1;
+			for (i = 0; i < dev->ex_dev.num_phys; i++) {
+				struct ex_phy *phy = &dev->ex_dev.ex_phy[i];
+
+				phy->phy_change_count = -1;
+			}
+		}
+	}
+
+	sas_discover_event(port, DISCE_RESUME);
+}
+
 /**
  * sas_form_port -- add this phy to a port
  * @phy: the phy of interest
@@ -58,7 +101,14 @@ static void sas_form_port(struct asd_sas_phy *phy)
 	if (port) {
 		if (!phy_is_wideport_member(port, phy))
 			sas_deform_port(phy, 0);
-		else {
+		else if (phy->suspended) {
+			phy->suspended = 0;
+			sas_resume_port(phy);
+
+			/* phy came back, try to cancel the timeout */
+			wake_up(&sas_ha->eh_wait_q);
+			return;
+		} else {
 			SAS_DPRINTK("%s: phy%d belongs to port%d already(%d)!\n",
 				    __func__, phy->id, phy->port->id,
 				    phy->port->num_phys);
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index a65c05a8d48..a184c2443a6 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -73,6 +73,8 @@ struct lpfc_sli2_slim;
 #define LPFC_HB_MBOX_INTERVAL   5	/* Heart beat interval in seconds. */
 #define LPFC_HB_MBOX_TIMEOUT    30	/* Heart beat timeout  in seconds. */
 
+#define LPFC_LOOK_AHEAD_OFF	0	/* Look ahead logic is turned off */
+
 /* Error Attention event polling interval */
 #define LPFC_ERATT_POLL_INTERVAL	5 /* EATT poll interval in seconds */
 
@@ -684,6 +686,7 @@ struct lpfc_hba {
 #define LPFC_FCF_FOV 1		/* Fast fcf failover */
 #define LPFC_FCF_PRIORITY 2	/* Priority fcf failover */
 	uint32_t cfg_fcf_failover_policy;
+	uint32_t cfg_fcp_io_sched;
 	uint32_t cfg_cr_delay;
 	uint32_t cfg_cr_count;
 	uint32_t cfg_multi_ring_support;
@@ -695,6 +698,7 @@ struct lpfc_hba {
 	uint32_t cfg_fcp_imax;
 	uint32_t cfg_fcp_wq_count;
 	uint32_t cfg_fcp_eq_count;
+	uint32_t cfg_fcp_io_channel;
 	uint32_t cfg_sg_seg_cnt;
 	uint32_t cfg_prot_sg_seg_cnt;
 	uint32_t cfg_sg_dma_buf_size;
@@ -732,7 +736,7 @@ struct lpfc_hba {
 	uint32_t hbq_count;	        /* Count of configured HBQs */
 	struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies  */
 
-	uint32_t fcp_qidx;		/* next work queue to post work to */
+	atomic_t fcp_qidx;		/* next work queue to post work to */
 
 	unsigned long pci_bar0_map;     /* Physical address for PCI BAR0 */
 	unsigned long pci_bar1_map;     /* Physical address for PCI BAR1 */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index adef5bb2100..b032562aa0d 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3643,18 +3643,25 @@ lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
 	struct lpfc_hba *phba = vport->phba;
 	int val = 0, i;
 
+	/* fcp_imax is only valid for SLI4 */
+	if (phba->sli_rev != LPFC_SLI_REV4)
+		return -EINVAL;
+
 	/* Sanity check on user data */
 	if (!isdigit(buf[0]))
 		return -EINVAL;
 	if (sscanf(buf, "%i", &val) != 1)
 		return -EINVAL;
 
-	/* Value range is [636,651042] */
-	if (val < LPFC_MIM_IMAX || val > LPFC_DMULT_CONST)
+	/*
+	 * Value range for the HBA is [5000,5000000]
+	 * The value for each EQ depends on how many EQs are configured.
+	 */
+	if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
 		return -EINVAL;
 
 	phba->cfg_fcp_imax = (uint32_t)val;
-	for (i = 0; i < phba->cfg_fcp_eq_count; i += LPFC_MAX_EQ_DELAY)
+	for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
 		lpfc_modify_fcp_eq_delay(phba, i);
 
 	return strlen(buf);
@@ -3662,13 +3669,14 @@ lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
 
 /*
 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
+# for the HBA.
 #
-# Value range is [636,651042]. Default value is 10000.
+# Value range is [5,000 to 5,000,000]. Default value is 50,000.
 */
-static int lpfc_fcp_imax = LPFC_FP_DEF_IMAX;
+static int lpfc_fcp_imax = LPFC_DEF_IMAX;
 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(lpfc_fcp_imax,
-	    "Set the maximum number of fast-path FCP interrupts per second");
+	    "Set the maximum number of FCP interrupts per second per HBA");
 lpfc_param_show(fcp_imax)
 
 /**
@@ -3687,14 +3695,19 @@ lpfc_param_show(fcp_imax)
 static int
 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
 {
-	if (val >= LPFC_MIM_IMAX && val <= LPFC_DMULT_CONST) {
+	if (phba->sli_rev != LPFC_SLI_REV4) {
+		phba->cfg_fcp_imax = 0;
+		return 0;
+	}
+
+	if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
 		phba->cfg_fcp_imax = val;
 		return 0;
 	}
 
 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 			"3016 fcp_imax: %d out of range, using default\n", val);
-	phba->cfg_fcp_imax = LPFC_FP_DEF_IMAX;
+	phba->cfg_fcp_imax = LPFC_DEF_IMAX;
 
 	return 0;
 }
@@ -3765,6 +3778,16 @@ static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
 
 /*
+# lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
+# range is [0,1]. Default value is 0.
+# For [0], FCP commands are issued to Work Queues ina round robin fashion.
+# For [1], FCP commands are issued to a Work Queue associated with the
+#          current CPU.
+*/
+LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algrithmn for "
+		"issuing commands [0] - Round Robin, [1] - Current CPU");
+
+/*
 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
@@ -3844,21 +3867,33 @@ LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
 
 /*
 # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
+# This parameter is ignored and will eventually be depricated
 #
-# Value range is [1,31]. Default value is 4.
+# Value range is [1,7]. Default value is 4.
 */
-LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
+LPFC_ATTR_R(fcp_wq_count, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
+	    LPFC_FCP_IO_CHAN_MAX,
 	    "Set the number of fast-path FCP work queues, if possible");
 
 /*
-# lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
+# lpfc_fcp_eq_count: Set the number of FCP EQ/CQ/WQ IO channels
 #
-# Value range is [1,7]. Default value is 1.
+# Value range is [1,7]. Default value is 4.
 */
-LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
+LPFC_ATTR_R(fcp_eq_count, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
+	    LPFC_FCP_IO_CHAN_MAX,
 	    "Set the number of fast-path FCP event queues, if possible");
 
 /*
+# lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
+#
+# Value range is [1,7]. Default value is 4.
+*/
+LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
+	    LPFC_FCP_IO_CHAN_MAX,
+	    "Set the number of FCP I/O channels");
+
+/*
 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
 #       0  = HBA resets disabled
 #       1  = HBA resets enabled (default)
@@ -3883,6 +3918,17 @@ LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
 
 /*
+# lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine
+#       0  = disabled (default)
+#       1  = enabled
+# Value range is [0,1]. Default value is 0.
+*/
+unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;
+
+module_param(lpfc_fcp_look_ahead, uint, S_IRUGO);
+MODULE_PARM_DESC(lpfc_fcp_look_ahead, "Look ahead for completions");
+
+/*
 # lpfc_prot_mask: i
 #	- Bit mask of host protection capabilities used to register with the
 #	  SCSI mid-layer
@@ -3976,6 +4022,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_lpfc_topology,
 	&dev_attr_lpfc_scan_down,
 	&dev_attr_lpfc_link_speed,
+	&dev_attr_lpfc_fcp_io_sched,
 	&dev_attr_lpfc_cr_delay,
 	&dev_attr_lpfc_cr_count,
 	&dev_attr_lpfc_multi_ring_support,
@@ -4002,6 +4049,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_lpfc_fcp_imax,
 	&dev_attr_lpfc_fcp_wq_count,
 	&dev_attr_lpfc_fcp_eq_count,
+	&dev_attr_lpfc_fcp_io_channel,
 	&dev_attr_lpfc_enable_bg,
 	&dev_attr_lpfc_soft_wwnn,
 	&dev_attr_lpfc_soft_wwpn,
@@ -4964,6 +5012,7 @@ struct fc_function_template lpfc_vport_transport_functions = {
 void
 lpfc_get_cfgparam(struct lpfc_hba *phba)
 {
+	lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
 	lpfc_cr_delay_init(phba, lpfc_cr_delay);
 	lpfc_cr_count_init(phba, lpfc_cr_count);
 	lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
@@ -4980,6 +5029,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
 	lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
 	lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
+	lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
 	lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
 	lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
 	lpfc_enable_bg_init(phba, lpfc_enable_bg);
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index 253d9a85734..f7368eb8041 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -195,7 +195,7 @@ lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
 
 	if (rsp->ulpStatus) {
 		if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
-			switch (rsp->un.ulpWord[4] & 0xff) {
+			switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
 			case IOERR_SEQUENCE_TIMEOUT:
 				rc = -ETIMEDOUT;
 				break;
@@ -1234,7 +1234,7 @@ lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
 
 	if (rsp->ulpStatus) {
 		if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
-			switch (rsp->un.ulpWord[4] & 0xff) {
+			switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
 			case IOERR_SEQUENCE_TIMEOUT:
 				rc = -ETIMEDOUT;
 				break;
@@ -1714,6 +1714,8 @@ lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
 			phba->sli4_hba.lnk_info.lnk_no);
 
 	link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
+	bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
+	       LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
 	bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
 	       phba->sli4_hba.lnk_info.lnk_no);
 	bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
@@ -4796,7 +4798,7 @@ lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba,
 	menlo_resp->xri = rsp->ulpContext;
 	if (rsp->ulpStatus) {
 		if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
-			switch (rsp->un.ulpWord[4] & 0xff) {
+			switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) {
 			case IOERR_SEQUENCE_TIMEOUT:
 				rc = -ETIMEDOUT;
 				break;
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 8a2a514a255..e470c489de0 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -196,8 +196,7 @@ irqreturn_t lpfc_sli_intr_handler(int, void *);
 irqreturn_t lpfc_sli_sp_intr_handler(int, void *);
 irqreturn_t lpfc_sli_fp_intr_handler(int, void *);
 irqreturn_t lpfc_sli4_intr_handler(int, void *);
-irqreturn_t lpfc_sli4_sp_intr_handler(int, void *);
-irqreturn_t lpfc_sli4_fp_intr_handler(int, void *);
+irqreturn_t lpfc_sli4_hba_intr_handler(int, void *);
 
 void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_sli4_swap_str(struct lpfc_hba *, LPFC_MBOXQ_t *);
@@ -391,6 +390,7 @@ extern spinlock_t pgcnt_lock;
 extern unsigned int pgcnt;
 extern unsigned int lpfc_prot_mask;
 extern unsigned char lpfc_prot_guard;
+extern unsigned int lpfc_fcp_look_ahead;
 
 /* Interface exported by fabric iocb scheduler */
 void lpfc_fabric_abort_nport(struct lpfc_nodelist *);
@@ -457,6 +457,8 @@ int lpfc_sli4_queue_create(struct lpfc_hba *);
 void lpfc_sli4_queue_destroy(struct lpfc_hba *);
 void lpfc_sli4_abts_err_handler(struct lpfc_hba *, struct lpfc_nodelist *,
 				struct sli4_wcqe_xri_aborted *);
+void lpfc_sli_abts_recover_port(struct lpfc_vport *,
+				struct lpfc_nodelist *);
 int lpfc_hba_init_link_fc_topology(struct lpfc_hba *, uint32_t, uint32_t);
 int lpfc_issue_reg_vfi(struct lpfc_vport *);
 int lpfc_issue_unreg_vfi(struct lpfc_vport *);
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 93e96b3c909..7ffabb7e3af 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -104,7 +104,8 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	if (unlikely(icmd->ulpStatus == IOSTAT_NEED_BUFFER)) {
 		lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
 	} else if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
-		((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) {
+		   ((icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+		   IOERR_RCV_BUFFER_WAITING)) {
 		/* Not enough posted buffers; Try posting more buffers */
 		phba->fc_stat.NoRcvBuf++;
 		if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
@@ -633,7 +634,8 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		/* Check for retry */
 		if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
 			if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT ||
-			    irsp->un.ulpWord[4] != IOERR_NO_RESOURCES)
+			    (irsp->un.ulpWord[4] && IOERR_PARAM_MASK) !=
+			    IOERR_NO_RESOURCES)
 				vport->fc_ns_retry++;
 
 			/* CT command is being retried */
@@ -783,7 +785,9 @@ lpfc_cmpl_ct_cmd_gff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		if (cmdiocb->retry < LPFC_MAX_NS_RETRY) {
 			retry = 1;
 			if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
-				switch (irsp->un.ulpWord[4]) {
+				switch ((irsp->un.ulpWord[4] &
+					IOERR_PARAM_MASK)) {
+
 				case IOERR_NO_RESOURCES:
 					/* We don't increment the retry
 					 * count for this case.
@@ -908,8 +912,10 @@ lpfc_cmpl_ct(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 				 cmdcode, irsp->ulpStatus, irsp->un.ulpWord[4]);
 
 		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
-			((irsp->un.ulpWord[4] == IOERR_SLI_DOWN) ||
-			 (irsp->un.ulpWord[4] == IOERR_SLI_ABORTED)))
+			(((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+			  IOERR_SLI_DOWN) ||
+			 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+			  IOERR_SLI_ABORTED)))
 			goto out;
 
 		retry = cmdiocb->retry;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 3217d63ed28..f63f5ff7f27 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -490,9 +490,11 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
 		len +=  snprintf(buf+len, size-len,
 				 "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
 				 "Local:%d flg:x%x)  RSP PutInx:%d Max:%d\n",
-				 i, pgpp->cmdGetInx, pring->numCiocb,
-				 pring->next_cmdidx, pring->local_getidx,
-				 pring->flag, pgpp->rspPutInx, pring->numRiocb);
+				 i, pgpp->cmdGetInx, pring->sli.sli3.numCiocb,
+				 pring->sli.sli3.next_cmdidx,
+				 pring->sli.sli3.local_getidx,
+				 pring->flag, pgpp->rspPutInx,
+				 pring->sli.sli3.numRiocb);
 	}
 
 	if (phba->sli_rev <= LPFC_SLI_REV3) {
@@ -557,6 +559,9 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
 		case NLP_STE_PRLI_ISSUE:
 			statep = "PRLI  ";
 			break;
+		case NLP_STE_LOGO_ISSUE:
+			statep = "LOGO  ";
+			break;
 		case NLP_STE_UNMAPPED_NODE:
 			statep = "UNMAP ";
 			break;
@@ -581,8 +586,13 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
 			"WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
 			*name, *(name+1), *(name+2), *(name+3),
 			*(name+4), *(name+5), *(name+6), *(name+7));
-		len +=  snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ",
-			ndlp->nlp_rpi, ndlp->nlp_flag);
+		if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
+			len +=  snprintf(buf+len, size-len, "RPI:%03d ",
+				ndlp->nlp_rpi);
+		else
+			len +=  snprintf(buf+len, size-len, "RPI:none ");
+		len +=  snprintf(buf+len, size-len, "flag:x%08x ",
+			ndlp->nlp_flag);
 		if (!ndlp->nlp_type)
 			len +=  snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
 		if (ndlp->nlp_type & NLP_FC_NODE)
@@ -1999,207 +2009,298 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 {
 	struct lpfc_debug *debug = file->private_data;
 	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
-	int len = 0, fcp_qidx;
+	int len = 0;
 	char *pbuffer;
+	int x, cnt;
+	int max_cnt;
+	struct lpfc_queue *qp = NULL;
+
 
 	if (!debug->buffer)
 		debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
 	if (!debug->buffer)
 		return 0;
 	pbuffer = debug->buffer;
+	max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128;
 
 	if (*ppos)
 		return 0;
 
-	/* Get slow-path event queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Slow-path EQ information:\n");
-	if (phba->sli4_hba.sp_eq) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tEQID[%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
-			phba->sli4_hba.sp_eq->queue_id,
-			phba->sli4_hba.sp_eq->entry_count,
-			phba->sli4_hba.sp_eq->entry_size,
-			phba->sli4_hba.sp_eq->host_index,
-			phba->sli4_hba.sp_eq->hba_index);
-	}
+	spin_lock_irq(&phba->hbalock);
+
+	/* Fast-path event queue */
+	if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) {
+		cnt = phba->cfg_fcp_io_channel;
+
+		for (x = 0; x < cnt; x++) {
+
+			/* Fast-path EQ */
+			qp = phba->sli4_hba.hba_eq[x];
+			if (!qp)
+				goto proc_cq;
+
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"\nHBA EQ info: "
+				"EQ-STAT[max:x%x noE:x%x "
+				"bs:x%x proc:x%llx]\n",
+				qp->q_cnt_1, qp->q_cnt_2,
+				qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"EQID[%02d], "
+				"QE-CNT[%04d], QE-SIZE[%04d], "
+				"HOST-IDX[%04d], PORT-IDX[%04d]",
+				qp->queue_id,
+				qp->entry_count,
+				qp->entry_size,
+				qp->host_index,
+				qp->hba_index);
+
+
+			/* Reset max counter */
+			qp->EQ_max_eqe = 0;
+
+			len +=  snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+			if (len >= max_cnt)
+				goto too_big;
+proc_cq:
+			/* Fast-path FCP CQ */
+			qp = phba->sli4_hba.fcp_cq[x];
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"\tFCP CQ info: ");
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"AssocEQID[%02d]: "
+				"CQ STAT[max:x%x relw:x%x "
+				"xabt:x%x wq:x%llx]\n",
+				qp->assoc_qid,
+				qp->q_cnt_1, qp->q_cnt_2,
+				qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"\tCQID[%02d], "
+				"QE-CNT[%04d], QE-SIZE[%04d], "
+				"HOST-IDX[%04d], PORT-IDX[%04d]",
+				qp->queue_id, qp->entry_count,
+				qp->entry_size, qp->host_index,
+				qp->hba_index);
+
 
-	/* Get fast-path event queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Fast-path EQ information:\n");
-	if (phba->sli4_hba.fp_eq) {
-		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
-		     fcp_qidx++) {
-			if (phba->sli4_hba.fp_eq[fcp_qidx]) {
+			/* Reset max counter */
+			qp->CQ_max_cqe = 0;
+
+			len +=  snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+			if (len >= max_cnt)
+				goto too_big;
+
+			/* Fast-path FCP WQ */
+			qp = phba->sli4_hba.fcp_wq[x];
+
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"\t\tFCP WQ info: ");
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"AssocCQID[%02d]: "
+				"WQ-STAT[oflow:x%x posted:x%llx]\n",
+				qp->assoc_qid,
+				qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
+			len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				"\t\tWQID[%02d], "
+				"QE-CNT[%04d], QE-SIZE[%04d], "
+				"HOST-IDX[%04d], PORT-IDX[%04d]",
+				qp->queue_id,
+				qp->entry_count,
+				qp->entry_size,
+				qp->host_index,
+				qp->hba_index);
+
+			len +=  snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+			if (len >= max_cnt)
+				goto too_big;
+
+			if (x)
+				continue;
+
+			/* Only EQ 0 has slow path CQs configured */
+
+			/* Slow-path mailbox CQ */
+			qp = phba->sli4_hba.mbx_cq;
+			if (qp) {
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\tMBX CQ info: ");
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"AssocEQID[%02d]: "
+					"CQ-STAT[mbox:x%x relw:x%x "
+					"xabt:x%x wq:x%llx]\n",
+					qp->assoc_qid,
+					qp->q_cnt_1, qp->q_cnt_2,
+					qp->q_cnt_3,
+					(unsigned long long)qp->q_cnt_4);
 				len += snprintf(pbuffer+len,
 					LPFC_QUE_INFO_GET_BUF_SIZE-len,
-				"\tEQID[%02d], "
-				"QE-COUNT[%04d], QE-SIZE[%04d], "
-				"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
-				phba->sli4_hba.fp_eq[fcp_qidx]->queue_id,
-				phba->sli4_hba.fp_eq[fcp_qidx]->entry_count,
-				phba->sli4_hba.fp_eq[fcp_qidx]->entry_size,
-				phba->sli4_hba.fp_eq[fcp_qidx]->host_index,
-				phba->sli4_hba.fp_eq[fcp_qidx]->hba_index);
+					"\tCQID[%02d], "
+					"QE-CNT[%04d], QE-SIZE[%04d], "
+					"HOST-IDX[%04d], PORT-IDX[%04d]",
+					qp->queue_id, qp->entry_count,
+					qp->entry_size, qp->host_index,
+					qp->hba_index);
+
+				len +=  snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+				if (len >= max_cnt)
+					goto too_big;
 			}
-		}
-	}
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
-
-	/* Get mailbox complete queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Slow-path MBX CQ information:\n");
-	if (phba->sli4_hba.mbx_cq) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Associated EQID[%02d]:\n",
-			phba->sli4_hba.mbx_cq->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tCQID[%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
-			phba->sli4_hba.mbx_cq->queue_id,
-			phba->sli4_hba.mbx_cq->entry_count,
-			phba->sli4_hba.mbx_cq->entry_size,
-			phba->sli4_hba.mbx_cq->host_index,
-			phba->sli4_hba.mbx_cq->hba_index);
-	}
 
-	/* Get slow-path complete queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Slow-path ELS CQ information:\n");
-	if (phba->sli4_hba.els_cq) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Associated EQID[%02d]:\n",
-			phba->sli4_hba.els_cq->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tCQID [%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
-			phba->sli4_hba.els_cq->queue_id,
-			phba->sli4_hba.els_cq->entry_count,
-			phba->sli4_hba.els_cq->entry_size,
-			phba->sli4_hba.els_cq->host_index,
-			phba->sli4_hba.els_cq->hba_index);
-	}
+			/* Slow-path MBOX MQ */
+			qp = phba->sli4_hba.mbx_wq;
+			if (qp) {
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\t\tMBX MQ info: ");
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"AssocCQID[%02d]:\n",
+					phba->sli4_hba.mbx_wq->assoc_qid);
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\t\tWQID[%02d], "
+					"QE-CNT[%04d], QE-SIZE[%04d], "
+					"HOST-IDX[%04d], PORT-IDX[%04d]",
+					qp->queue_id, qp->entry_count,
+					qp->entry_size, qp->host_index,
+					qp->hba_index);
+
+				len +=  snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+				if (len >= max_cnt)
+					goto too_big;
+			}
 
-	/* Get fast-path complete queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Fast-path FCP CQ information:\n");
-	fcp_qidx = 0;
-	if (phba->sli4_hba.fcp_cq) {
-		do {
-			if (phba->sli4_hba.fcp_cq[fcp_qidx]) {
+			/* Slow-path ELS response CQ */
+			qp = phba->sli4_hba.els_cq;
+			if (qp) {
 				len += snprintf(pbuffer+len,
 					LPFC_QUE_INFO_GET_BUF_SIZE-len,
-				"Associated EQID[%02d]:\n",
-				phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid);
+					"\tELS CQ info: ");
 				len += snprintf(pbuffer+len,
 					LPFC_QUE_INFO_GET_BUF_SIZE-len,
-				"\tCQID[%02d], "
-				"QE-COUNT[%04d], QE-SIZE[%04d], "
-				"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
-				phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id,
-				phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count,
-				phba->sli4_hba.fcp_cq[fcp_qidx]->entry_size,
-				phba->sli4_hba.fcp_cq[fcp_qidx]->host_index,
-				phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index);
+					"AssocEQID[%02d]: "
+					"CQ-STAT[max:x%x relw:x%x "
+					"xabt:x%x wq:x%llx]\n",
+					qp->assoc_qid,
+					qp->q_cnt_1, qp->q_cnt_2,
+					qp->q_cnt_3,
+					(unsigned long long)qp->q_cnt_4);
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\tCQID [%02d], "
+					"QE-CNT[%04d], QE-SIZE[%04d], "
+					"HOST-IDX[%04d], PORT-IDX[%04d]",
+					qp->queue_id, qp->entry_count,
+					qp->entry_size, qp->host_index,
+					qp->hba_index);
+
+				/* Reset max counter */
+				qp->CQ_max_cqe = 0;
+
+				len +=  snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+				if (len >= max_cnt)
+					goto too_big;
 			}
-		} while (++fcp_qidx < phba->cfg_fcp_eq_count);
-		len += snprintf(pbuffer+len,
-				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
-	}
 
-	/* Get mailbox queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Slow-path MBX MQ information:\n");
-	if (phba->sli4_hba.mbx_wq) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Associated CQID[%02d]:\n",
-			phba->sli4_hba.mbx_wq->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tWQID[%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
-			phba->sli4_hba.mbx_wq->queue_id,
-			phba->sli4_hba.mbx_wq->entry_count,
-			phba->sli4_hba.mbx_wq->entry_size,
-			phba->sli4_hba.mbx_wq->host_index,
-			phba->sli4_hba.mbx_wq->hba_index);
-	}
+			/* Slow-path ELS WQ */
+			qp = phba->sli4_hba.els_wq;
+			if (qp) {
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\t\tELS WQ info: ");
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"AssocCQID[%02d]: "
+					" WQ-STAT[oflow:x%x "
+					"posted:x%llx]\n",
+					qp->assoc_qid,
+					qp->q_cnt_1,
+					(unsigned long long)qp->q_cnt_4);
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\t\tWQID[%02d], "
+					"QE-CNT[%04d], QE-SIZE[%04d], "
+					"HOST-IDX[%04d], PORT-IDX[%04d]",
+					qp->queue_id, qp->entry_count,
+					qp->entry_size, qp->host_index,
+					qp->hba_index);
+
+				len +=  snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+				if (len >= max_cnt)
+					goto too_big;
+			}
 
-	/* Get slow-path work queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Slow-path ELS WQ information:\n");
-	if (phba->sli4_hba.els_wq) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Associated CQID[%02d]:\n",
-			phba->sli4_hba.els_wq->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tWQID[%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
-			phba->sli4_hba.els_wq->queue_id,
-			phba->sli4_hba.els_wq->entry_count,
-			phba->sli4_hba.els_wq->entry_size,
-			phba->sli4_hba.els_wq->host_index,
-			phba->sli4_hba.els_wq->hba_index);
-	}
+			if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
+				/* Slow-path RQ header */
+				qp = phba->sli4_hba.hdr_rq;
 
-	/* Get fast-path work queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Fast-path FCP WQ information:\n");
-	if (phba->sli4_hba.fcp_wq) {
-		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
-		     fcp_qidx++) {
-			if (!phba->sli4_hba.fcp_wq[fcp_qidx])
-				continue;
-			len += snprintf(pbuffer+len,
+				len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\t\tRQ info: ");
+				len += snprintf(pbuffer+len,
 					LPFC_QUE_INFO_GET_BUF_SIZE-len,
-				"Associated CQID[%02d]:\n",
-				phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid);
-			len += snprintf(pbuffer+len,
+					"AssocCQID[%02d]: "
+					"RQ-STAT[nopost:x%x nobuf:x%x "
+					"trunc:x%x rcv:x%llx]\n",
+					qp->assoc_qid,
+					qp->q_cnt_1, qp->q_cnt_2,
+					qp->q_cnt_3,
+					(unsigned long long)qp->q_cnt_4);
+				len += snprintf(pbuffer+len,
 					LPFC_QUE_INFO_GET_BUF_SIZE-len,
-				"\tWQID[%02d], "
-				"QE-COUNT[%04d], WQE-SIZE[%04d], "
-				"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
-				phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id,
-				phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count,
-				phba->sli4_hba.fcp_wq[fcp_qidx]->entry_size,
-				phba->sli4_hba.fcp_wq[fcp_qidx]->host_index,
-				phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index);
+					"\t\tHQID[%02d], "
+					"QE-CNT[%04d], QE-SIZE[%04d], "
+					"HOST-IDX[%04d], PORT-IDX[%04d]\n",
+					qp->queue_id,
+					qp->entry_count,
+					qp->entry_size,
+					qp->host_index,
+					qp->hba_index);
+
+				/* Slow-path RQ data */
+				qp = phba->sli4_hba.dat_rq;
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
+					"\t\tDQID[%02d], "
+					"QE-CNT[%04d], QE-SIZE[%04d], "
+					"HOST-IDX[%04d], PORT-IDX[%04d]\n",
+					qp->queue_id,
+					qp->entry_count,
+					qp->entry_size,
+					qp->host_index,
+					qp->hba_index);
+
+				len +=  snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+			}
 		}
-		len += snprintf(pbuffer+len,
-				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
 	}
 
-	/* Get receive queue information */
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Slow-path RQ information:\n");
-	if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"Associated CQID[%02d]:\n",
-			phba->sli4_hba.hdr_rq->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tHQID[%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
-			phba->sli4_hba.hdr_rq->queue_id,
-			phba->sli4_hba.hdr_rq->entry_count,
-			phba->sli4_hba.hdr_rq->entry_size,
-			phba->sli4_hba.hdr_rq->host_index,
-			phba->sli4_hba.hdr_rq->hba_index);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
-			"\tDQID[%02d], "
-			"QE-COUNT[%04d], QE-SIZE[%04d], "
-			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
-			phba->sli4_hba.dat_rq->queue_id,
-			phba->sli4_hba.dat_rq->entry_count,
-			phba->sli4_hba.dat_rq->entry_size,
-			phba->sli4_hba.dat_rq->host_index,
-			phba->sli4_hba.dat_rq->hba_index);
-	}
+	spin_unlock_irq(&phba->hbalock);
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+too_big:
+	len +=  snprintf(pbuffer+len,
+		LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n");
+	spin_unlock_irq(&phba->hbalock);
 	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
 }
 
@@ -2408,31 +2509,21 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 
 	switch (quetp) {
 	case LPFC_IDIAG_EQ:
-		/* Slow-path event queue */
-		if (phba->sli4_hba.sp_eq &&
-		    phba->sli4_hba.sp_eq->queue_id == queid) {
-			/* Sanity check */
-			rc = lpfc_idiag_que_param_check(
-					phba->sli4_hba.sp_eq, index, count);
-			if (rc)
-				goto error_out;
-			idiag.ptr_private = phba->sli4_hba.sp_eq;
-			goto pass_check;
-		}
-		/* Fast-path event queue */
-		if (phba->sli4_hba.fp_eq) {
-			for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) {
-				if (phba->sli4_hba.fp_eq[qidx] &&
-				    phba->sli4_hba.fp_eq[qidx]->queue_id ==
+		/* HBA event queue */
+		if (phba->sli4_hba.hba_eq) {
+			for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
+				qidx++) {
+				if (phba->sli4_hba.hba_eq[qidx] &&
+				    phba->sli4_hba.hba_eq[qidx]->queue_id ==
 				    queid) {
 					/* Sanity check */
 					rc = lpfc_idiag_que_param_check(
-						phba->sli4_hba.fp_eq[qidx],
+						phba->sli4_hba.hba_eq[qidx],
 						index, count);
 					if (rc)
 						goto error_out;
 					idiag.ptr_private =
-						phba->sli4_hba.fp_eq[qidx];
+						phba->sli4_hba.hba_eq[qidx];
 					goto pass_check;
 				}
 			}
@@ -2479,7 +2570,7 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 						phba->sli4_hba.fcp_cq[qidx];
 					goto pass_check;
 				}
-			} while (++qidx < phba->cfg_fcp_eq_count);
+			} while (++qidx < phba->cfg_fcp_io_channel);
 		}
 		goto error_out;
 		break;
@@ -2511,7 +2602,8 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 		}
 		/* FCP work queue */
 		if (phba->sli4_hba.fcp_wq) {
-			for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) {
+			for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
+				qidx++) {
 				if (!phba->sli4_hba.fcp_wq[qidx])
 					continue;
 				if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
@@ -4490,7 +4582,7 @@ lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
 	lpfc_debug_dump_mbx_wq(phba);
 	lpfc_debug_dump_els_wq(phba);
 
-	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++)
+	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
 		lpfc_debug_dump_fcp_wq(phba, fcp_wqidx);
 
 	lpfc_debug_dump_hdr_rq(phba);
@@ -4501,14 +4593,12 @@ lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
 	lpfc_debug_dump_mbx_cq(phba);
 	lpfc_debug_dump_els_cq(phba);
 
-	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++)
+	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
 		lpfc_debug_dump_fcp_cq(phba, fcp_wqidx);
 
 	/*
 	 * Dump Event Queues (EQs)
 	 */
-	lpfc_debug_dump_sp_eq(phba);
-
-	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++)
-		lpfc_debug_dump_fcp_eq(phba, fcp_wqidx);
+	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
+		lpfc_debug_dump_hba_eq(phba, fcp_wqidx);
 }
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h
index afe368fd1b9..8b2b6a3bfc2 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.h
+++ b/drivers/scsi/lpfc/lpfc_debugfs.h
@@ -36,6 +36,9 @@
 /* dumpHostSlim output buffer size */
 #define LPFC_DUMPHOSTSLIM_SIZE 4096
 
+/* dumpSLIqinfo output buffer size */
+#define	LPFC_DUMPSLIQINFO_SIZE 4096
+
 /* hbqinfo output buffer size */
 #define LPFC_HBQINFO_SIZE 8192
 
@@ -366,7 +369,7 @@ static inline void
 lpfc_debug_dump_fcp_wq(struct lpfc_hba *phba, int fcp_wqidx)
 {
 	/* sanity check */
-	if (fcp_wqidx >= phba->cfg_fcp_wq_count)
+	if (fcp_wqidx >= phba->cfg_fcp_io_channel)
 		return;
 
 	printk(KERN_ERR "FCP WQ: WQ[Idx:%d|Qid:%d]\n",
@@ -388,15 +391,15 @@ lpfc_debug_dump_fcp_cq(struct lpfc_hba *phba, int fcp_wqidx)
 	int fcp_cqidx, fcp_cqid;
 
 	/* sanity check */
-	if (fcp_wqidx >= phba->cfg_fcp_wq_count)
+	if (fcp_wqidx >= phba->cfg_fcp_io_channel)
 		return;
 
 	fcp_cqid = phba->sli4_hba.fcp_wq[fcp_wqidx]->assoc_qid;
-	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++)
+	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++)
 		if (phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id == fcp_cqid)
 			break;
 	if (phba->intr_type == MSIX) {
-		if (fcp_cqidx >= phba->cfg_fcp_eq_count)
+		if (fcp_cqidx >= phba->cfg_fcp_io_channel)
 			return;
 	} else {
 		if (fcp_cqidx > 0)
@@ -410,7 +413,7 @@ lpfc_debug_dump_fcp_cq(struct lpfc_hba *phba, int fcp_wqidx)
 }
 
 /**
- * lpfc_debug_dump_fcp_eq - dump all entries from a fcp work queue's evt queue
+ * lpfc_debug_dump_hba_eq - dump all entries from a fcp work queue's evt queue
  * @phba: Pointer to HBA context object.
  * @fcp_wqidx: Index to a FCP work queue.
  *
@@ -418,36 +421,30 @@ lpfc_debug_dump_fcp_cq(struct lpfc_hba *phba, int fcp_wqidx)
  * associated to the FCP work queue specified by the @fcp_wqidx.
  **/
 static inline void
-lpfc_debug_dump_fcp_eq(struct lpfc_hba *phba, int fcp_wqidx)
+lpfc_debug_dump_hba_eq(struct lpfc_hba *phba, int fcp_wqidx)
 {
 	struct lpfc_queue *qdesc;
 	int fcp_eqidx, fcp_eqid;
 	int fcp_cqidx, fcp_cqid;
 
 	/* sanity check */
-	if (fcp_wqidx >= phba->cfg_fcp_wq_count)
+	if (fcp_wqidx >= phba->cfg_fcp_io_channel)
 		return;
 	fcp_cqid = phba->sli4_hba.fcp_wq[fcp_wqidx]->assoc_qid;
-	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++)
+	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++)
 		if (phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id == fcp_cqid)
 			break;
 	if (phba->intr_type == MSIX) {
-		if (fcp_cqidx >= phba->cfg_fcp_eq_count)
+		if (fcp_cqidx >= phba->cfg_fcp_io_channel)
 			return;
 	} else {
 		if (fcp_cqidx > 0)
 			return;
 	}
 
-	if (phba->cfg_fcp_eq_count == 0) {
-		fcp_eqidx = -1;
-		fcp_eqid = phba->sli4_hba.sp_eq->queue_id;
-		qdesc = phba->sli4_hba.sp_eq;
-	} else {
-		fcp_eqidx = fcp_cqidx;
-		fcp_eqid = phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id;
-		qdesc = phba->sli4_hba.fp_eq[fcp_eqidx];
-	}
+	fcp_eqidx = fcp_cqidx;
+	fcp_eqid = phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id;
+	qdesc = phba->sli4_hba.hba_eq[fcp_eqidx];
 
 	printk(KERN_ERR "FCP EQ: WQ[Idx:%d|Qid:%d]->CQ[Idx:%d|Qid:%d]->"
 		"EQ[Idx:%d|Qid:%d]\n",
@@ -543,25 +540,6 @@ lpfc_debug_dump_mbx_cq(struct lpfc_hba *phba)
 }
 
 /**
- * lpfc_debug_dump_sp_eq - dump all entries from slow-path event queue
- * @phba: Pointer to HBA context object.
- *
- * This function dumps all entries from the slow-path event queue.
- **/
-static inline void
-lpfc_debug_dump_sp_eq(struct lpfc_hba *phba)
-{
-	printk(KERN_ERR "SP EQ: WQ[Qid:%d/Qid:%d]->CQ[Qid:%d/Qid:%d]->"
-		"EQ[Qid:%d]:\n",
-		phba->sli4_hba.mbx_wq->queue_id,
-		phba->sli4_hba.els_wq->queue_id,
-		phba->sli4_hba.mbx_cq->queue_id,
-		phba->sli4_hba.els_cq->queue_id,
-		phba->sli4_hba.sp_eq->queue_id);
-	lpfc_debug_dump_q(phba->sli4_hba.sp_eq);
-}
-
-/**
  * lpfc_debug_dump_wq_by_id - dump all entries from a work queue by queue id
  * @phba: Pointer to HBA context object.
  * @qid: Work queue identifier.
@@ -574,10 +552,10 @@ lpfc_debug_dump_wq_by_id(struct lpfc_hba *phba, int qid)
 {
 	int wq_idx;
 
-	for (wq_idx = 0; wq_idx < phba->cfg_fcp_wq_count; wq_idx++)
+	for (wq_idx = 0; wq_idx < phba->cfg_fcp_io_channel; wq_idx++)
 		if (phba->sli4_hba.fcp_wq[wq_idx]->queue_id == qid)
 			break;
-	if (wq_idx < phba->cfg_fcp_wq_count) {
+	if (wq_idx < phba->cfg_fcp_io_channel) {
 		printk(KERN_ERR "FCP WQ[Idx:%d|Qid:%d]\n", wq_idx, qid);
 		lpfc_debug_dump_q(phba->sli4_hba.fcp_wq[wq_idx]);
 		return;
@@ -644,9 +622,9 @@ lpfc_debug_dump_cq_by_id(struct lpfc_hba *phba, int qid)
 	do {
 		if (phba->sli4_hba.fcp_cq[cq_idx]->queue_id == qid)
 			break;
-	} while (++cq_idx < phba->cfg_fcp_eq_count);
+	} while (++cq_idx < phba->cfg_fcp_io_channel);
 
-	if (cq_idx < phba->cfg_fcp_eq_count) {
+	if (cq_idx < phba->cfg_fcp_io_channel) {
 		printk(KERN_ERR "FCP CQ[Idx:%d|Qid:%d]\n", cq_idx, qid);
 		lpfc_debug_dump_q(phba->sli4_hba.fcp_cq[cq_idx]);
 		return;
@@ -677,21 +655,17 @@ lpfc_debug_dump_eq_by_id(struct lpfc_hba *phba, int qid)
 {
 	int eq_idx;
 
-	for (eq_idx = 0; eq_idx < phba->cfg_fcp_eq_count; eq_idx++) {
-		if (phba->sli4_hba.fp_eq[eq_idx]->queue_id == qid)
+	for (eq_idx = 0; eq_idx < phba->cfg_fcp_io_channel; eq_idx++) {
+		if (phba->sli4_hba.hba_eq[eq_idx]->queue_id == qid)
 			break;
 	}
 
-	if (eq_idx < phba->cfg_fcp_eq_count) {
+	if (eq_idx < phba->cfg_fcp_io_channel) {
 		printk(KERN_ERR "FCP EQ[Idx:%d|Qid:%d]\n", eq_idx, qid);
-		lpfc_debug_dump_q(phba->sli4_hba.fp_eq[eq_idx]);
+		lpfc_debug_dump_q(phba->sli4_hba.hba_eq[eq_idx]);
 		return;
 	}
 
-	if (phba->sli4_hba.sp_eq->queue_id == qid) {
-		printk(KERN_ERR "SP EQ[|Qid:%d]\n", qid);
-		lpfc_debug_dump_q(phba->sli4_hba.sp_eq);
-	}
 }
 
 void lpfc_debug_dump_all_queues(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h
index 1d84b63fcca..af49fb03dbb 100644
--- a/drivers/scsi/lpfc/lpfc_disc.h
+++ b/drivers/scsi/lpfc/lpfc_disc.h
@@ -145,6 +145,7 @@ struct lpfc_node_rrq {
 #define NLP_RCV_PLOGI      0x00080000	/* Rcv'ed PLOGI from remote system */
 #define NLP_LOGO_ACC       0x00100000	/* Process LOGO after ACC completes */
 #define NLP_TGT_NO_SCSIID  0x00200000	/* good PRLI but no binding for scsid */
+#define NLP_ISSUE_LOGO     0x00400000	/* waiting to issue a LOGO */
 #define NLP_ACC_REGLOGIN   0x01000000	/* Issue Reg Login after successful
 					   ACC */
 #define NLP_NPR_ADISC      0x02000000	/* Issue ADISC when dq'ed from
@@ -201,10 +202,11 @@ struct lpfc_node_rrq {
 #define NLP_STE_ADISC_ISSUE       0x2	/* ADISC was sent to NL_PORT */
 #define NLP_STE_REG_LOGIN_ISSUE   0x3	/* REG_LOGIN was issued for NL_PORT */
 #define NLP_STE_PRLI_ISSUE        0x4	/* PRLI was sent to NL_PORT */
-#define NLP_STE_UNMAPPED_NODE     0x5	/* PRLI completed from NL_PORT */
-#define NLP_STE_MAPPED_NODE       0x6	/* Identified as a FCP Target */
-#define NLP_STE_NPR_NODE          0x7	/* NPort disappeared */
-#define NLP_STE_MAX_STATE         0x8
+#define NLP_STE_LOGO_ISSUE	  0x5	/* LOGO was sent to NL_PORT */
+#define NLP_STE_UNMAPPED_NODE     0x6	/* PRLI completed from NL_PORT */
+#define NLP_STE_MAPPED_NODE       0x7	/* Identified as a FCP Target */
+#define NLP_STE_NPR_NODE          0x8	/* NPort disappeared */
+#define NLP_STE_MAX_STATE         0x9
 #define NLP_STE_FREED_NODE        0xff	/* node entry was freed to MEM_NLP */
 
 /* For UNUSED_NODE state, the node has just been allocated.
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index d54ae199979..cfe533bc979 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -962,7 +962,8 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			if ((phba->fcoe_cvl_eventtag_attn ==
 			     phba->fcoe_cvl_eventtag) &&
 			    (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
-			    (irsp->un.ulpWord[4] == IOERR_SLI_ABORTED))
+			    ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+			    IOERR_SLI_ABORTED))
 				goto stop_rr_fcf_flogi;
 			else
 				phba->fcoe_cvl_eventtag_attn =
@@ -1108,8 +1109,10 @@ flogifail:
 		/* Start discovery */
 		lpfc_disc_start(vport);
 	} else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
-			((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) &&
-			(irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) &&
+			(((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
+			 IOERR_SLI_ABORTED) &&
+			((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
+			 IOERR_SLI_DOWN))) &&
 			(phba->link_state != LPFC_CLEAR_LA)) {
 		/* If FLOGI failed enable link interrupt. */
 		lpfc_issue_clear_la(phba, vport);
@@ -1476,6 +1479,10 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
 		return ndlp;
 	memset(&rrq.xri_bitmap, 0, sizeof(new_ndlp->active_rrqs.xri_bitmap));
 
+	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+		 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
+		 ndlp, ndlp->nlp_DID, new_ndlp);
+
 	if (!new_ndlp) {
 		rc = memcmp(&ndlp->nlp_portname, name,
 			    sizeof(struct lpfc_name));
@@ -1527,6 +1534,9 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
 		/* The new_ndlp is replacing ndlp totally, so we need
 		 * to put ndlp on UNUSED list and try to free it.
 		 */
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+			 "3179 PLOGI confirm NEW: %x %x\n",
+			 new_ndlp->nlp_DID, keepDID);
 
 		/* Fix up the rport accordingly */
 		rport =  ndlp->rport;
@@ -1559,23 +1569,34 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
 		lpfc_drop_node(vport, ndlp);
 	}
 	else {
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+			 "3180 PLOGI confirm SWAP: %x %x\n",
+			 new_ndlp->nlp_DID, keepDID);
+
 		lpfc_unreg_rpi(vport, ndlp);
+
 		/* Two ndlps cannot have the same did */
 		ndlp->nlp_DID = keepDID;
 		if (phba->sli_rev == LPFC_SLI_REV4)
 			memcpy(&ndlp->active_rrqs.xri_bitmap,
 				&rrq.xri_bitmap,
 				sizeof(ndlp->active_rrqs.xri_bitmap));
+
 		/* Since we are swapping the ndlp passed in with the new one
-		 * and the did has already been swapped, copy over the
-		 * state and names.
+		 * and the did has already been swapped, copy over state.
+		 * The new WWNs are already in new_ndlp since thats what
+		 * we looked it up by in the begining of this routine.
 		 */
-		memcpy(&new_ndlp->nlp_portname, &ndlp->nlp_portname,
-			sizeof(struct lpfc_name));
-		memcpy(&new_ndlp->nlp_nodename, &ndlp->nlp_nodename,
-			sizeof(struct lpfc_name));
 		new_ndlp->nlp_state = ndlp->nlp_state;
-		lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+
+		/* Since we are switching over to the new_ndlp, the old
+		 * ndlp should be put in the NPR state, unless we have
+		 * already started re-discovery on it.
+		 */
+		if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
+		    (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
+			lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+
 		/* Fix up the rport accordingly */
 		rport = ndlp->rport;
 		if (rport) {
@@ -2367,6 +2388,8 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	IOCB_t *irsp;
 	struct lpfc_sli *psli;
 	struct lpfcMboxq *mbox;
+	unsigned long flags;
+	uint32_t skip_recovery = 0;
 
 	psli = &phba->sli;
 	/* we pass cmdiocb to state machine which needs rspiocb as well */
@@ -2381,47 +2404,52 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		"LOGO cmpl:       status:x%x/x%x did:x%x",
 		irsp->ulpStatus, irsp->un.ulpWord[4],
 		ndlp->nlp_DID);
+
 	/* LOGO completes to NPort <nlp_DID> */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
 			 "0105 LOGO completes to NPort x%x "
 			 "Data: x%x x%x x%x x%x\n",
 			 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
 			 irsp->ulpTimeout, vport->num_disc_nodes);
-	/* Check to see if link went down during discovery */
-	if (lpfc_els_chk_latt(vport))
+
+	if (lpfc_els_chk_latt(vport)) {
+		skip_recovery = 1;
 		goto out;
+	}
 
+	/* Check to see if link went down during discovery */
 	if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
 	        /* NLP_EVT_DEVICE_RM should unregister the RPI
 		 * which should abort all outstanding IOs.
 		 */
 		lpfc_disc_state_machine(vport, ndlp, cmdiocb,
 					NLP_EVT_DEVICE_RM);
+		skip_recovery = 1;
 		goto out;
 	}
 
 	if (irsp->ulpStatus) {
 		/* Check for retry */
-		if (lpfc_els_retry(phba, cmdiocb, rspiocb))
+		if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
 			/* ELS command is being retried */
+			skip_recovery = 1;
 			goto out;
+		}
 		/* LOGO failed */
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
 				 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
 				 ndlp->nlp_DID, irsp->ulpStatus,
 				 irsp->un.ulpWord[4]);
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
-		if (lpfc_error_lost_link(irsp))
+		if (lpfc_error_lost_link(irsp)) {
+			skip_recovery = 1;
 			goto out;
-		else
-			lpfc_disc_state_machine(vport, ndlp, cmdiocb,
-						NLP_EVT_CMPL_LOGO);
-	} else
-		/* Good status, call state machine.
-		 * This will unregister the rpi if needed.
-		 */
-		lpfc_disc_state_machine(vport, ndlp, cmdiocb,
-					NLP_EVT_CMPL_LOGO);
+		}
+	}
+
+	/* Call state machine. This will unregister the rpi if needed. */
+	lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
+
 out:
 	lpfc_els_free_iocb(phba, cmdiocb);
 	/* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
@@ -2436,9 +2464,30 @@ out:
 			if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
 				MBX_NOT_FINISHED) {
 				mempool_free(mbox, phba->mbox_mem_pool);
+				skip_recovery = 1;
 			}
 		}
 	}
+
+	/*
+	 * If the node is a target, the handling attempts to recover the port.
+	 * For any other port type, the rpi is unregistered as an implicit
+	 * LOGO.
+	 */
+	if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
+		lpfc_cancel_retry_delay_tmo(vport, ndlp);
+		spin_lock_irqsave(shost->host_lock, flags);
+		ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+		spin_unlock_irqrestore(shost->host_lock, flags);
+
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+				 "3187 LOGO completes to NPort x%x: Start "
+				 "Recovery Data: x%x x%x x%x x%x\n",
+				 ndlp->nlp_DID, irsp->ulpStatus,
+				 irsp->un.ulpWord[4], irsp->ulpTimeout,
+				 vport->num_disc_nodes);
+		lpfc_disc_start(vport);
+	}
 	return;
 }
 
@@ -2501,10 +2550,27 @@ lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		"Issue LOGO:      did:x%x",
 		ndlp->nlp_DID, 0, 0);
 
+	/*
+	 * If we are issuing a LOGO, we may try to recover the remote NPort
+	 * by issuing a PLOGI later. Even though we issue ELS cmds by the
+	 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
+	 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
+	 * for that ELS cmd. To avoid this situation, lets get rid of the
+	 * RPI right now, before any ELS cmds are sent.
+	 */
+	spin_lock_irq(shost->host_lock);
+	ndlp->nlp_flag |= NLP_ISSUE_LOGO;
+	spin_unlock_irq(shost->host_lock);
+	if (lpfc_unreg_rpi(vport, ndlp)) {
+		lpfc_els_free_iocb(phba, elsiocb);
+		return 0;
+	}
+
 	phba->fc_stat.elsXmitLOGO++;
 	elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
 	spin_lock_irq(shost->host_lock);
 	ndlp->nlp_flag |= NLP_LOGO_SND;
+	ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
 	spin_unlock_irq(shost->host_lock);
 	rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
 
@@ -2920,7 +2986,7 @@ lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
 	case ELS_CMD_LOGO:
 		if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
 			ndlp->nlp_prev_state = ndlp->nlp_state;
-			lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+			lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
 		}
 		break;
 	case ELS_CMD_FDISC:
@@ -3007,7 +3073,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		}
 		break;
 	case IOSTAT_LOCAL_REJECT:
-		switch ((irsp->un.ulpWord[4] & 0xff)) {
+		switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
 		case IOERR_LOOP_OPEN_FAILURE:
 			if (cmd == ELS_CMD_FLOGI) {
 				if (PCI_DEVICE_ID_HORNET ==
@@ -3214,7 +3280,8 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 		if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
 			((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
-			((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) {
+			((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
+			IOERR_NO_RESOURCES))) {
 			/* Don't reset timer for no resources */
 
 			/* If discovery / RSCN timer is running, reset it */
@@ -3273,7 +3340,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			return 1;
 		case ELS_CMD_LOGO:
 			ndlp->nlp_prev_state = ndlp->nlp_state;
-			lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+			lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
 			lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
 			return 1;
 		}
@@ -3533,13 +3600,17 @@ lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
 	kfree(mp);
 	mempool_free(pmb, phba->mbox_mem_pool);
-	if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
-		lpfc_nlp_put(ndlp);
-		/* This is the end of the default RPI cleanup logic for this
-		 * ndlp. If no other discovery threads are using this ndlp.
-		 * we should free all resources associated with it.
-		 */
-		lpfc_nlp_not_used(ndlp);
+	if (ndlp) {
+		if (NLP_CHK_NODE_ACT(ndlp)) {
+			lpfc_nlp_put(ndlp);
+			/* This is the end of the default RPI cleanup logic for
+			 * this ndlp. If no other discovery threads are using
+			 * this ndlp, free all resources associated with it.
+			 */
+			lpfc_nlp_not_used(ndlp);
+		} else {
+			lpfc_drop_node(ndlp->vport, ndlp);
+		}
 	}
 
 	return;
@@ -6803,7 +6874,8 @@ lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
 		lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
 	} else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
-	    (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) {
+		   (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+		   IOERR_RCV_BUFFER_WAITING) {
 		phba->fc_stat.NoRcvBuf++;
 		/* Not enough posted buffers; Try posting more buffers */
 		if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
@@ -7985,3 +8057,47 @@ lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
 	spin_unlock_irqrestore(&phba->hbalock, iflag);
 	return;
 }
+
+/* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
+ * @vport: pointer to virtual port object.
+ * @ndlp: nodelist pointer for the impacted node.
+ *
+ * The driver calls this routine in response to an SLI4 XRI ABORT CQE
+ * or an SLI3 ASYNC_STATUS_CN event from the port.  For either event,
+ * the driver is required to send a LOGO to the remote node before it
+ * attempts to recover its login to the remote node.
+ */
+void
+lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
+			   struct lpfc_nodelist *ndlp)
+{
+	struct Scsi_Host *shost;
+	struct lpfc_hba *phba;
+	unsigned long flags = 0;
+
+	shost = lpfc_shost_from_vport(vport);
+	phba = vport->phba;
+	if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
+		lpfc_printf_log(phba, KERN_INFO,
+				LOG_SLI, "3093 No rport recovery needed. "
+				"rport in state 0x%x\n", ndlp->nlp_state);
+		return;
+	}
+	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+			"3094 Start rport recovery on shost id 0x%x "
+			"fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
+			"flags 0x%x\n",
+			shost->host_no, ndlp->nlp_DID,
+			vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
+			ndlp->nlp_flag);
+	/*
+	 * The rport is not responding.  Remove the FCP-2 flag to prevent
+	 * an ADISC in the follow-up recovery code.
+	 */
+	spin_lock_irqsave(shost->host_lock, flags);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	spin_unlock_irqrestore(shost->host_lock, flags);
+	lpfc_issue_els_logo(vport, ndlp, 0);
+	lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
+}
+
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 9b4f92941dc..e9845d2ecf1 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -123,6 +123,10 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
 		"rport devlosscb: sid:x%x did:x%x flg:x%x",
 		ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
 
+	lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+			 "3181 dev_loss_callbk x%06x, rport %p flg x%x\n",
+			 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
+
 	/* Don't defer this if we are in the process of deleting the vport
 	 * or unloading the driver. The unload will cleanup the node
 	 * appropriately we just need to cleanup the ndlp rport info here.
@@ -142,6 +146,15 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
 	if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
 		return;
 
+	if (ndlp->nlp_type & NLP_FABRIC) {
+
+		/* If the WWPN of the rport and ndlp don't match, ignore it */
+		if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) {
+			put_device(&rport->dev);
+			return;
+		}
+	}
+
 	evtp = &ndlp->dev_loss_evt;
 
 	if (!list_empty(&evtp->evt_listp))
@@ -202,6 +215,10 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
 		"rport devlosstmo:did:x%x type:x%x id:x%x",
 		ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
 
+	lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+			 "3182 dev_loss_tmo_handler x%06x, rport %p flg x%x\n",
+			 ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag);
+
 	/* Don't defer this if we are in the process of deleting the vport
 	 * or unloading the driver. The unload will cleanup the node
 	 * appropriately we just need to cleanup the ndlp rport info here.
@@ -3492,7 +3509,7 @@ lpfc_create_static_vport(struct lpfc_hba *phba)
 	LPFC_MBOXQ_t *pmb = NULL;
 	MAILBOX_t *mb;
 	struct static_vport_info *vport_info;
-	int rc = 0, i;
+	int mbx_wait_rc = 0, i;
 	struct fc_vport_identifiers vport_id;
 	struct fc_vport *new_fc_vport;
 	struct Scsi_Host *shost;
@@ -3509,7 +3526,7 @@ lpfc_create_static_vport(struct lpfc_hba *phba)
 				" allocate mailbox memory\n");
 		return;
 	}
-
+	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
 	mb = &pmb->u.mb;
 
 	vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
@@ -3523,24 +3540,31 @@ lpfc_create_static_vport(struct lpfc_hba *phba)
 
 	vport_buff = (uint8_t *) vport_info;
 	do {
+		/* free dma buffer from previous round */
+		if (pmb->context1) {
+			mp = (struct lpfc_dmabuf *)pmb->context1;
+			lpfc_mbuf_free(phba, mp->virt, mp->phys);
+			kfree(mp);
+		}
 		if (lpfc_dump_static_vport(phba, pmb, offset))
 			goto out;
 
 		pmb->vport = phba->pport;
-		rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
+		mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
+							LPFC_MBOX_TMO);
 
-		if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
+		if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 				"0544 lpfc_create_static_vport failed to"
 				" issue dump mailbox command ret 0x%x "
 				"status 0x%x\n",
-				rc, mb->mbxStatus);
+				mbx_wait_rc, mb->mbxStatus);
 			goto out;
 		}
 
 		if (phba->sli_rev == LPFC_SLI_REV4) {
 			byte_count = pmb->u.mqe.un.mb_words[5];
-			mp = (struct lpfc_dmabuf *) pmb->context2;
+			mp = (struct lpfc_dmabuf *)pmb->context1;
 			if (byte_count > sizeof(struct static_vport_info) -
 					offset)
 				byte_count = sizeof(struct static_vport_info)
@@ -3604,9 +3628,9 @@ lpfc_create_static_vport(struct lpfc_hba *phba)
 
 out:
 	kfree(vport_info);
-	if (rc != MBX_TIMEOUT) {
-		if (pmb->context2) {
-			mp = (struct lpfc_dmabuf *) pmb->context2;
+	if (mbx_wait_rc != MBX_TIMEOUT) {
+		if (pmb->context1) {
+			mp = (struct lpfc_dmabuf *)pmb->context1;
 			lpfc_mbuf_free(phba, mp->virt, mp->phys);
 			kfree(mp);
 		}
@@ -3834,6 +3858,10 @@ lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 	if (rport_ids.roles !=  FC_RPORT_ROLE_UNKNOWN)
 		fc_remote_port_rolechg(rport, rport_ids.roles);
 
+	lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+			 "3183 rport register x%06x, rport %p role x%x\n",
+			 ndlp->nlp_DID, rport, rport_ids.roles);
+
 	if ((rport->scsi_target_id != -1) &&
 	    (rport->scsi_target_id < LPFC_MAX_TARGET)) {
 		ndlp->nlp_sid = rport->scsi_target_id;
@@ -3850,6 +3878,10 @@ lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
 		"rport delete:    did:x%x flg:x%x type x%x",
 		ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
 
+	lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
+			 "3184 rport unregister x%06x, rport %p\n",
+			 ndlp->nlp_DID, rport);
+
 	fc_remote_port_delete(rport);
 
 	return;
@@ -3964,6 +3996,7 @@ lpfc_nlp_state_name(char *buffer, size_t size, int state)
 		[NLP_STE_ADISC_ISSUE] = "ADISC",
 		[NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
 		[NLP_STE_PRLI_ISSUE] = "PRLI",
+		[NLP_STE_LOGO_ISSUE] = "LOGO",
 		[NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
 		[NLP_STE_MAPPED_NODE] = "MAPPED",
 		[NLP_STE_NPR_NODE] = "NPR",
@@ -4330,6 +4363,26 @@ lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 	return 0;
 }
 
+/**
+ * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
+ * @phba: Pointer to HBA context object.
+ * @pmb: Pointer to mailbox object.
+ *
+ * This function will issue an ELS LOGO command after completing
+ * the UNREG_RPI.
+ **/
+void
+lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+	struct lpfc_vport  *vport = pmb->vport;
+	struct lpfc_nodelist *ndlp;
+
+	ndlp = (struct lpfc_nodelist *)(pmb->context1);
+	if (!ndlp)
+		return;
+	lpfc_issue_els_logo(vport, ndlp, 0);
+}
+
 /*
  * Free rpi associated with LPFC_NODELIST entry.
  * This routine is called from lpfc_freenode(), when we are removing
@@ -4354,9 +4407,16 @@ lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 			rpi = ndlp->nlp_rpi;
 			if (phba->sli_rev == LPFC_SLI_REV4)
 				rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
+
 			lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
 			mbox->vport = vport;
-			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
+				mbox->context1 = ndlp;
+				mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
+			} else {
+				mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			}
+
 			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
 			if (rc == MBX_NOT_FINISHED)
 				mempool_free(mbox, phba->mbox_mem_pool);
@@ -4499,9 +4559,13 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 		lpfc_disable_node(vport, ndlp);
 	}
 
+
+	/* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
+
 	/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
 	if ((mb = phba->sli.mbox_active)) {
 		if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
+		   !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
 		   (ndlp == (struct lpfc_nodelist *) mb->context2)) {
 			mb->context2 = NULL;
 			mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
@@ -4512,6 +4576,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 	/* Cleanup REG_LOGIN completions which are not yet processed */
 	list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
 		if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
+			(mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
 			(ndlp != (struct lpfc_nodelist *) mb->context2))
 			continue;
 
@@ -4521,6 +4586,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
 	list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
 		if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
+		   !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
 		    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
 			mp = (struct lpfc_dmabuf *) (mb->context1);
 			if (mp) {
@@ -4585,7 +4651,7 @@ lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 				mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
 				mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
 				mbox->vport = vport;
-				mbox->context2 = NULL;
+				mbox->context2 = ndlp;
 				rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
 				if (rc == MBX_NOT_FINISHED) {
 					mempool_free(mbox, phba->mbox_mem_pool);
@@ -5365,9 +5431,17 @@ __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
 	struct lpfc_nodelist *ndlp;
 
 	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
-		if (filter(ndlp, param))
+		if (filter(ndlp, param)) {
+			lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+					 "3185 FIND node filter %p DID "
+					 "Data: x%p x%x x%x\n",
+					 filter, ndlp, ndlp->nlp_DID,
+					 ndlp->nlp_flag);
 			return ndlp;
+		}
 	}
+	lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
+			 "3186 FIND node filter %p NOT FOUND.\n", filter);
 	return NULL;
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 41bb1d2fb62..7398ca862e9 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1188,8 +1188,8 @@ typedef struct {
  */
 
 /* Number of rings currently used and available. */
-#define MAX_CONFIGURED_RINGS     3
-#define MAX_RINGS                4
+#define MAX_SLI3_CONFIGURED_RINGS     3
+#define MAX_SLI3_RINGS                4
 
 /* IOCB / Mailbox is owned by FireFly */
 #define OWN_CHIP        1
@@ -1251,6 +1251,8 @@ typedef struct {
 #define PCI_VENDOR_ID_SERVERENGINE  0x19a2
 #define PCI_DEVICE_ID_TIGERSHARK    0x0704
 #define PCI_DEVICE_ID_TOMCAT        0x0714
+#define PCI_DEVICE_ID_SKYHAWK       0x0724
+#define PCI_DEVICE_ID_SKYHAWK_VF    0x072c
 
 #define JEDEC_ID_ADDRESS            0x0080001c
 #define FIREFLY_JEDEC_ID            0x1ACC
@@ -1458,6 +1460,7 @@ typedef struct {		/* FireFly BIU registers */
 #define MBX_UNREG_FCFI	    0xA2
 #define MBX_INIT_VFI        0xA3
 #define MBX_INIT_VPI        0xA4
+#define MBX_ACCESS_VDATA    0xA5
 
 #define MBX_AUTH_PORT       0xF8
 #define MBX_SECURITY_MGMT   0xF9
@@ -2991,7 +2994,7 @@ typedef struct _PCB {
 
 	uint32_t pgpAddrLow;
 	uint32_t pgpAddrHigh;
-	SLI2_RDSC rdsc[MAX_RINGS];
+	SLI2_RDSC rdsc[MAX_SLI3_RINGS];
 } PCB_t;
 
 /* NEW_FEATURE */
@@ -3101,18 +3104,18 @@ struct lpfc_pgp {
 
 struct sli2_desc {
 	uint32_t unused1[16];
-	struct lpfc_hgp host[MAX_RINGS];
-	struct lpfc_pgp port[MAX_RINGS];
+	struct lpfc_hgp host[MAX_SLI3_RINGS];
+	struct lpfc_pgp port[MAX_SLI3_RINGS];
 };
 
 struct sli3_desc {
-	struct lpfc_hgp host[MAX_RINGS];
+	struct lpfc_hgp host[MAX_SLI3_RINGS];
 	uint32_t reserved[8];
 	uint32_t hbq_put[16];
 };
 
 struct sli3_pgp {
-	struct lpfc_pgp port[MAX_RINGS];
+	struct lpfc_pgp port[MAX_SLI3_RINGS];
 	uint32_t hbq_get[16];
 };
 
@@ -3242,6 +3245,7 @@ typedef struct {
 #define IOERR_SLI_DOWN                0x101  /* ulpStatus  - Driver defined */
 #define IOERR_SLI_BRESET              0x102
 #define IOERR_SLI_ABORTED             0x103
+#define IOERR_PARAM_MASK              0x1ff
 } PARM_ERR;
 
 typedef union {
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 953603a7a43..834b699cac7 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -187,11 +187,17 @@ struct lpfc_sli_intf {
 /* Active interrupt test count */
 #define LPFC_ACT_INTR_CNT	4
 
+/* Algrithmns for scheduling FCP commands to WQs */
+#define	LPFC_FCP_SCHED_ROUND_ROBIN	0
+#define	LPFC_FCP_SCHED_BY_CPU		1
+
 /* Delay Multiplier constant */
 #define LPFC_DMULT_CONST       651042
-#define LPFC_MIM_IMAX          636
-#define LPFC_FP_DEF_IMAX       10000
-#define LPFC_SP_DEF_IMAX       10000
+
+/* Configuration of Interrupts / sec for entire HBA port */
+#define LPFC_MIN_IMAX          5000
+#define LPFC_MAX_IMAX          5000000
+#define LPFC_DEF_IMAX          50000
 
 /* PORT_CAPABILITIES constants. */
 #define LPFC_MAX_SUPPORTED_PAGES	8
@@ -338,7 +344,7 @@ struct lpfc_cqe {
  * Define mask value for xri_aborted and wcqe completed CQE extended status.
  * Currently, extended status is limited to 9 bits (0x0 -> 0x103) .
  */
-#define WCQE_PARAM_MASK		0x1FF;
+#define WCQE_PARAM_MASK		0x1FF
 
 /* completion queue entry for wqe completions */
 struct lpfc_wcqe_complete {
@@ -880,13 +886,19 @@ struct mbox_header {
 #define LPFC_MBOX_OPCODE_EQ_DESTROY			0x37
 #define LPFC_MBOX_OPCODE_QUERY_FW_CFG			0x3A
 #define LPFC_MBOX_OPCODE_FUNCTION_RESET			0x3D
+#define LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG	0x3E
+#define LPFC_MBOX_OPCODE_SET_BOOT_CONFIG		0x43
 #define LPFC_MBOX_OPCODE_GET_PORT_NAME			0x4D
 #define LPFC_MBOX_OPCODE_MQ_CREATE_EXT			0x5A
+#define LPFC_MBOX_OPCODE_GET_VPD_DATA			0x5B
+#define LPFC_MBOX_OPCODE_SEND_ACTIVATION		0x73
+#define LPFC_MBOX_OPCODE_RESET_LICENSES			0x74
 #define LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO		0x9A
 #define LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT		0x9B
 #define LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT		0x9C
 #define LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT		0x9D
 #define LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG		0xA0
+#define LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES		0xA1
 #define LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG		0xA4
 #define LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG		0xA5
 #define LPFC_MBOX_OPCODE_GET_PROFILE_LIST		0xA6
@@ -1382,6 +1394,11 @@ struct lpfc_mbx_set_link_diag_state {
 #define lpfc_mbx_set_diag_state_diag_SHIFT	0
 #define lpfc_mbx_set_diag_state_diag_MASK	0x00000001
 #define lpfc_mbx_set_diag_state_diag_WORD	word0
+#define lpfc_mbx_set_diag_state_diag_bit_valid_SHIFT	2
+#define lpfc_mbx_set_diag_state_diag_bit_valid_MASK	0x00000001
+#define lpfc_mbx_set_diag_state_diag_bit_valid_WORD	word0
+#define LPFC_DIAG_STATE_DIAG_BIT_VALID_NO_CHANGE	0
+#define LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE		1
 #define lpfc_mbx_set_diag_state_link_num_SHIFT	16
 #define lpfc_mbx_set_diag_state_link_num_MASK	0x0000003F
 #define lpfc_mbx_set_diag_state_link_num_WORD	word0
@@ -2556,7 +2573,7 @@ struct lpfc_mbx_get_sli4_parameters {
 };
 
 struct lpfc_rscr_desc_generic {
-#define LPFC_RSRC_DESC_WSIZE			18
+#define LPFC_RSRC_DESC_WSIZE			22
 	uint32_t desc[LPFC_RSRC_DESC_WSIZE];
 };
 
@@ -2566,6 +2583,9 @@ struct lpfc_rsrc_desc_pcie {
 #define lpfc_rsrc_desc_pcie_type_MASK		0x000000ff
 #define lpfc_rsrc_desc_pcie_type_WORD		word0
 #define LPFC_RSRC_DESC_TYPE_PCIE		0x40
+#define lpfc_rsrc_desc_pcie_length_SHIFT	8
+#define lpfc_rsrc_desc_pcie_length_MASK		0x000000ff
+#define lpfc_rsrc_desc_pcie_length_WORD		word0
 	uint32_t word1;
 #define lpfc_rsrc_desc_pcie_pfnum_SHIFT		0
 #define lpfc_rsrc_desc_pcie_pfnum_MASK		0x000000ff
@@ -2593,6 +2613,12 @@ struct lpfc_rsrc_desc_fcfcoe {
 #define lpfc_rsrc_desc_fcfcoe_type_MASK		0x000000ff
 #define lpfc_rsrc_desc_fcfcoe_type_WORD		word0
 #define LPFC_RSRC_DESC_TYPE_FCFCOE		0x43
+#define lpfc_rsrc_desc_fcfcoe_length_SHIFT	8
+#define lpfc_rsrc_desc_fcfcoe_length_MASK	0x000000ff
+#define lpfc_rsrc_desc_fcfcoe_length_WORD	word0
+#define LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD	0
+#define LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH	72
+#define LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH	88
 	uint32_t word1;
 #define lpfc_rsrc_desc_fcfcoe_vfnum_SHIFT	0
 #define lpfc_rsrc_desc_fcfcoe_vfnum_MASK	0x000000ff
@@ -2651,6 +2677,12 @@ struct lpfc_rsrc_desc_fcfcoe {
 #define lpfc_rsrc_desc_fcfcoe_eq_cnt_SHIFT	16
 #define lpfc_rsrc_desc_fcfcoe_eq_cnt_MASK	0x0000ffff
 #define lpfc_rsrc_desc_fcfcoe_eq_cnt_WORD	word13
+/* extended FC/FCoE Resource Descriptor when length = 88 bytes */
+	uint32_t bw_min;
+	uint32_t bw_max;
+	uint32_t iops_min;
+	uint32_t iops_max;
+	uint32_t reserved[4];
 };
 
 struct lpfc_func_cfg {
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 45c15208be9..8a55a586dd6 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -480,11 +480,11 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 	phba->link_state = LPFC_LINK_DOWN;
 
 	/* Only process IOCBs on ELS ring till hba_state is READY */
-	if (psli->ring[psli->extra_ring].cmdringaddr)
+	if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
-	if (psli->ring[psli->fcp_ring].cmdringaddr)
+	if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
-	if (psli->ring[psli->next_ring].cmdringaddr)
+	if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 
 	/* Post receive buffers for desired rings */
@@ -2059,6 +2059,11 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
 		oneConnect = 1;
 		m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
 		break;
+	case PCI_DEVICE_ID_SKYHAWK:
+	case PCI_DEVICE_ID_SKYHAWK_VF:
+		oneConnect = 1;
+		m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
+		break;
 	default:
 		m = (typeof(m)){"Unknown", "", ""};
 		break;
@@ -4546,6 +4551,13 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
 			phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
 	}
 
+	if (!phba->sli.ring)
+		phba->sli.ring = (struct lpfc_sli_ring *)
+			kzalloc(LPFC_SLI3_MAX_RING *
+			sizeof(struct lpfc_sli_ring), GFP_KERNEL);
+	if (!phba->sli.ring)
+		return -ENOMEM;
+
 	/*
 	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
 	 * used to create the sg_dma_buf_pool must be dynamically calculated.
@@ -4690,6 +4702,10 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 	/* Get all the module params for configuring this host */
 	lpfc_get_cfgparam(phba);
 	phba->max_vpi = LPFC_MAX_VPI;
+
+	/* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
+	phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
+
 	/* This will be set to correct value after the read_config mbox */
 	phba->max_vports = 0;
 
@@ -4705,6 +4721,16 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 		sges_per_segment = 2;
 
 	/*
+	 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
+	 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
+	 */
+	if (!phba->sli.ring)
+		phba->sli.ring = kzalloc(
+			(LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
+			sizeof(struct lpfc_sli_ring), GFP_KERNEL);
+	if (!phba->sli.ring)
+		return -ENOMEM;
+	/*
 	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
 	 * used to create the sg_dma_buf_pool must be dynamically calculated.
 	 * 2 segments are added since the IOCB needs a command and response bde.
@@ -4909,21 +4935,15 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 		goto out_remove_rpi_hdrs;
 	}
 
-	/*
-	 * The cfg_fcp_eq_count can be zero whenever there is exactly one
-	 * interrupt vector.  This is not an error
-	 */
-	if (phba->cfg_fcp_eq_count) {
-		phba->sli4_hba.fcp_eq_hdl =
-				kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
-				    phba->cfg_fcp_eq_count), GFP_KERNEL);
-		if (!phba->sli4_hba.fcp_eq_hdl) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"2572 Failed allocate memory for "
-					"fast-path per-EQ handle array\n");
-			rc = -ENOMEM;
-			goto out_free_fcf_rr_bmask;
-		}
+	phba->sli4_hba.fcp_eq_hdl =
+			kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
+			    phba->cfg_fcp_io_channel), GFP_KERNEL);
+	if (!phba->sli4_hba.fcp_eq_hdl) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"2572 Failed allocate memory for "
+				"fast-path per-EQ handle array\n");
+		rc = -ENOMEM;
+		goto out_free_fcf_rr_bmask;
 	}
 
 	phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
@@ -5550,6 +5570,10 @@ lpfc_hba_free(struct lpfc_hba *phba)
 	/* Release the driver assigned board number */
 	idr_remove(&lpfc_hba_index, phba->brd_no);
 
+	/* Free memory allocated with sli rings */
+	kfree(phba->sli.ring);
+	phba->sli.ring = NULL;
+
 	kfree(phba);
 	return;
 }
@@ -6275,8 +6299,9 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
 	uint32_t shdr_status, shdr_add_status;
 	struct lpfc_mbx_get_func_cfg *get_func_cfg;
 	struct lpfc_rsrc_desc_fcfcoe *desc;
+	char *pdesc_0;
 	uint32_t desc_count;
-	int length, i, rc = 0;
+	int length, i, rc = 0, rc2;
 
 	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!pmb) {
@@ -6388,18 +6413,17 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
 			 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
 			 length, LPFC_SLI4_MBX_EMBED);
 
-	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+	rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 	shdr = (union lpfc_sli4_cfg_shdr *)
 				&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
 	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
 	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
-	if (rc || shdr_status || shdr_add_status) {
+	if (rc2 || shdr_status || shdr_add_status) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"3026 Mailbox failed , mbxCmd x%x "
 				"GET_FUNCTION_CONFIG, mbxStatus x%x\n",
 				bf_get(lpfc_mqe_command, &pmb->u.mqe),
 				bf_get(lpfc_mqe_status, &pmb->u.mqe));
-		rc = -EIO;
 		goto read_cfg_out;
 	}
 
@@ -6407,11 +6431,18 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
 	get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
 	desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
 
+	pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
+	desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
+	length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
+	if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
+		length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
+	else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
+		goto read_cfg_out;
+
 	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
-		desc = (struct lpfc_rsrc_desc_fcfcoe *)
-			&get_func_cfg->func_cfg.desc[i];
+		desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
 		if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
-		    bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
+		    bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
 			phba->sli4_hba.iov.pf_number =
 				bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
 			phba->sli4_hba.iov.vf_number =
@@ -6425,13 +6456,11 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
 				"3027 GET_FUNCTION_CONFIG: pf_number:%d, "
 				"vf_number:%d\n", phba->sli4_hba.iov.pf_number,
 				phba->sli4_hba.iov.vf_number);
-	else {
+	else
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"3028 GET_FUNCTION_CONFIG: failed to find "
 				"Resrouce Descriptor:x%x\n",
 				LPFC_RSRC_DESC_TYPE_FCFCOE);
-		rc = -EIO;
-	}
 
 read_cfg_out:
 	mempool_free(pmb, phba->mbox_mem_pool);
@@ -6512,53 +6541,40 @@ lpfc_setup_endian_order(struct lpfc_hba *phba)
 static int
 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
 {
-	int cfg_fcp_wq_count;
-	int cfg_fcp_eq_count;
+	int cfg_fcp_io_channel;
+	uint32_t cpu;
+	uint32_t i = 0;
+
 
 	/*
-	 * Sanity check for confiugred queue parameters against the run-time
+	 * Sanity check for configured queue parameters against the run-time
 	 * device parameters
 	 */
 
-	/* Sanity check on FCP fast-path WQ parameters */
-	cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
-	if (cfg_fcp_wq_count >
-	    (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
-		cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
-				   LPFC_SP_WQN_DEF;
-		if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"2581 Not enough WQs (%d) from "
-					"the pci function for supporting "
-					"FCP WQs (%d)\n",
-					phba->sli4_hba.max_cfg_param.max_wq,
-					phba->cfg_fcp_wq_count);
-			goto out_error;
-		}
+	/* Sanity check on HBA EQ parameters */
+	cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
+
+	/* It doesn't make sense to have more io channels then CPUs */
+	for_each_online_cpu(cpu) {
+		i++;
+	}
+	if (i < cfg_fcp_io_channel) {
 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
-				"2582 Not enough WQs (%d) from the pci "
-				"function for supporting the requested "
-				"FCP WQs (%d), the actual FCP WQs can "
-				"be supported: %d\n",
-				phba->sli4_hba.max_cfg_param.max_wq,
-				phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
-	}
-	/* The actual number of FCP work queues adopted */
-	phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
-
-	/* Sanity check on FCP fast-path EQ parameters */
-	cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
-	if (cfg_fcp_eq_count >
-	    (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
-		cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
-				   LPFC_SP_EQN_DEF;
-		if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
+				"3188 Reducing IO channels to match number of "
+				"CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
+		cfg_fcp_io_channel = i;
+	}
+
+	if (cfg_fcp_io_channel >
+	    phba->sli4_hba.max_cfg_param.max_eq) {
+		cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
+		if (cfg_fcp_io_channel < LPFC_FCP_IO_CHAN_MIN) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"2574 Not enough EQs (%d) from the "
 					"pci function for supporting FCP "
 					"EQs (%d)\n",
 					phba->sli4_hba.max_cfg_param.max_eq,
-					phba->cfg_fcp_eq_count);
+					phba->cfg_fcp_io_channel);
 			goto out_error;
 		}
 		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
@@ -6567,22 +6583,16 @@ lpfc_sli4_queue_verify(struct lpfc_hba *phba)
 				"FCP EQs (%d), the actual FCP EQs can "
 				"be supported: %d\n",
 				phba->sli4_hba.max_cfg_param.max_eq,
-				phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
-	}
-	/* It does not make sense to have more EQs than WQs */
-	if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
-		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
-				"2593 The FCP EQ count(%d) cannot be greater "
-				"than the FCP WQ count(%d), limiting the "
-				"FCP EQ count to %d\n", cfg_fcp_eq_count,
-				phba->cfg_fcp_wq_count,
-				phba->cfg_fcp_wq_count);
-		cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
+				phba->cfg_fcp_io_channel, cfg_fcp_io_channel);
 	}
+
+	/* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
+
 	/* The actual number of FCP event queues adopted */
-	phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
-	/* The overall number of event queues used */
-	phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
+	phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
+	phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
+	phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
+	phba->sli4_hba.cfg_eqn = cfg_fcp_io_channel;
 
 	/* Get EQ depth from module parameter, fake the default for now */
 	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
@@ -6607,7 +6617,7 @@ out_error:
  * we just use some constant number as place holder.
  *
  * Return codes
- *      0 - sucessful
+ *      0 - successful
  *      -ENOMEM - No availble memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
@@ -6615,50 +6625,104 @@ int
 lpfc_sli4_queue_create(struct lpfc_hba *phba)
 {
 	struct lpfc_queue *qdesc;
-	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
+	int idx;
 
 	/*
-	 * Create Event Queues (EQs)
+	 * Create HBA Record arrays.
 	 */
+	if (!phba->cfg_fcp_io_channel)
+		return -ERANGE;
 
-	/* Create slow path event queue */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
-				      phba->sli4_hba.eq_ecount);
-	if (!qdesc) {
+	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
+	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
+	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
+	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
+	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
+	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
+
+	phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
+				phba->cfg_fcp_io_channel), GFP_KERNEL);
+	if (!phba->sli4_hba.hba_eq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0496 Failed allocate slow-path EQ\n");
+			"2576 Failed allocate memory for "
+			"fast-path EQ record array\n");
+		goto out_error;
+	}
+
+	phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
+				phba->cfg_fcp_io_channel), GFP_KERNEL);
+	if (!phba->sli4_hba.fcp_cq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"2577 Failed allocate memory for fast-path "
+				"CQ record array\n");
+		goto out_error;
+	}
+
+	phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
+				phba->cfg_fcp_io_channel), GFP_KERNEL);
+	if (!phba->sli4_hba.fcp_wq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"2578 Failed allocate memory for fast-path "
+				"WQ record array\n");
 		goto out_error;
 	}
-	phba->sli4_hba.sp_eq = qdesc;
 
 	/*
-	 * Create fast-path FCP Event Queue(s).  The cfg_fcp_eq_count can be
-	 * zero whenever there is exactly one interrupt vector.  This is not
-	 * an error.
+	 * Since the first EQ can have multiple CQs associated with it,
+	 * this array is used to quickly see if we have a FCP fast-path
+	 * CQ match.
 	 */
-	if (phba->cfg_fcp_eq_count) {
-		phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
-				       phba->cfg_fcp_eq_count), GFP_KERNEL);
-		if (!phba->sli4_hba.fp_eq) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"2576 Failed allocate memory for "
-					"fast-path EQ record array\n");
-			goto out_free_sp_eq;
-		}
+	phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
+					 phba->cfg_fcp_io_channel), GFP_KERNEL);
+	if (!phba->sli4_hba.fcp_cq_map) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"2545 Failed allocate memory for fast-path "
+				"CQ map\n");
+		goto out_error;
 	}
-	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
+
+	/*
+	 * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
+	 * how many EQs to create.
+	 */
+	for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+
+		/* Create EQs */
 		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
 					      phba->sli4_hba.eq_ecount);
 		if (!qdesc) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0497 Failed allocate fast-path EQ\n");
-			goto out_free_fp_eq;
+					"0497 Failed allocate EQ (%d)\n", idx);
+			goto out_error;
+		}
+		phba->sli4_hba.hba_eq[idx] = qdesc;
+
+		/* Create Fast Path FCP CQs */
+		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+					      phba->sli4_hba.cq_ecount);
+		if (!qdesc) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0499 Failed allocate fast-path FCP "
+					"CQ (%d)\n", idx);
+			goto out_error;
+		}
+		phba->sli4_hba.fcp_cq[idx] = qdesc;
+
+		/* Create Fast Path FCP WQs */
+		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+					      phba->sli4_hba.wq_ecount);
+		if (!qdesc) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0503 Failed allocate fast-path FCP "
+					"WQ (%d)\n", idx);
+			goto out_error;
 		}
-		phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
+		phba->sli4_hba.fcp_wq[idx] = qdesc;
 	}
 
+
 	/*
-	 * Create Complete Queues (CQs)
+	 * Create Slow Path Completion Queues (CQs)
 	 */
 
 	/* Create slow-path Mailbox Command Complete Queue */
@@ -6667,7 +6731,7 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0500 Failed allocate slow-path mailbox CQ\n");
-		goto out_free_fp_eq;
+		goto out_error;
 	}
 	phba->sli4_hba.mbx_cq = qdesc;
 
@@ -6677,59 +6741,29 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0501 Failed allocate slow-path ELS CQ\n");
-		goto out_free_mbx_cq;
+		goto out_error;
 	}
 	phba->sli4_hba.els_cq = qdesc;
 
 
 	/*
-	 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
-	 * If there are no FCP EQs then create exactly one FCP CQ.
+	 * Create Slow Path Work Queues (WQs)
 	 */
-	if (phba->cfg_fcp_eq_count)
-		phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
-						 phba->cfg_fcp_eq_count),
-						GFP_KERNEL);
-	else
-		phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
-						GFP_KERNEL);
-	if (!phba->sli4_hba.fcp_cq) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"2577 Failed allocate memory for fast-path "
-				"CQ record array\n");
-		goto out_free_els_cq;
-	}
-	fcp_cqidx = 0;
-	do {
-		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
-					      phba->sli4_hba.cq_ecount);
-		if (!qdesc) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0499 Failed allocate fast-path FCP "
-					"CQ (%d)\n", fcp_cqidx);
-			goto out_free_fcp_cq;
-		}
-		phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
-	} while (++fcp_cqidx < phba->cfg_fcp_eq_count);
 
 	/* Create Mailbox Command Queue */
-	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
-	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
 
 	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
 				      phba->sli4_hba.mq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0505 Failed allocate slow-path MQ\n");
-		goto out_free_fcp_cq;
+		goto out_error;
 	}
 	phba->sli4_hba.mbx_wq = qdesc;
 
 	/*
-	 * Create all the Work Queues (WQs)
+	 * Create ELS Work Queues
 	 */
-	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
-	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
 
 	/* Create slow-path ELS Work Queue */
 	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
@@ -6737,36 +6771,13 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0504 Failed allocate slow-path ELS WQ\n");
-		goto out_free_mbx_wq;
+		goto out_error;
 	}
 	phba->sli4_hba.els_wq = qdesc;
 
-	/* Create fast-path FCP Work Queue(s) */
-	phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
-				phba->cfg_fcp_wq_count), GFP_KERNEL);
-	if (!phba->sli4_hba.fcp_wq) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"2578 Failed allocate memory for fast-path "
-				"WQ record array\n");
-		goto out_free_els_wq;
-	}
-	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
-		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
-					      phba->sli4_hba.wq_ecount);
-		if (!qdesc) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0503 Failed allocate fast-path FCP "
-					"WQ (%d)\n", fcp_wqidx);
-			goto out_free_fcp_wq;
-		}
-		phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
-	}
-
 	/*
 	 * Create Receive Queue (RQ)
 	 */
-	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
-	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
 
 	/* Create Receive Queue for header */
 	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
@@ -6774,7 +6785,7 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0506 Failed allocate receive HRQ\n");
-		goto out_free_fcp_wq;
+		goto out_error;
 	}
 	phba->sli4_hba.hdr_rq = qdesc;
 
@@ -6784,52 +6795,14 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0507 Failed allocate receive DRQ\n");
-		goto out_free_hdr_rq;
+		goto out_error;
 	}
 	phba->sli4_hba.dat_rq = qdesc;
 
 	return 0;
 
-out_free_hdr_rq:
-	lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
-	phba->sli4_hba.hdr_rq = NULL;
-out_free_fcp_wq:
-	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
-		lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
-		phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
-	}
-	kfree(phba->sli4_hba.fcp_wq);
-	phba->sli4_hba.fcp_wq = NULL;
-out_free_els_wq:
-	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
-	phba->sli4_hba.els_wq = NULL;
-out_free_mbx_wq:
-	lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
-	phba->sli4_hba.mbx_wq = NULL;
-out_free_fcp_cq:
-	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
-		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
-		phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
-	}
-	kfree(phba->sli4_hba.fcp_cq);
-	phba->sli4_hba.fcp_cq = NULL;
-out_free_els_cq:
-	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
-	phba->sli4_hba.els_cq = NULL;
-out_free_mbx_cq:
-	lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
-	phba->sli4_hba.mbx_cq = NULL;
-out_free_fp_eq:
-	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
-		lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
-		phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
-	}
-	kfree(phba->sli4_hba.fp_eq);
-	phba->sli4_hba.fp_eq = NULL;
-out_free_sp_eq:
-	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
-	phba->sli4_hba.sp_eq = NULL;
 out_error:
+	lpfc_sli4_queue_destroy(phba);
 	return -ENOMEM;
 }
 
@@ -6848,58 +6821,86 @@ out_error:
 void
 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
 {
-	int fcp_qidx;
+	int idx;
+
+	if (phba->sli4_hba.hba_eq != NULL) {
+		/* Release HBA event queue */
+		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+			if (phba->sli4_hba.hba_eq[idx] != NULL) {
+				lpfc_sli4_queue_free(
+					phba->sli4_hba.hba_eq[idx]);
+				phba->sli4_hba.hba_eq[idx] = NULL;
+			}
+		}
+		kfree(phba->sli4_hba.hba_eq);
+		phba->sli4_hba.hba_eq = NULL;
+	}
+
+	if (phba->sli4_hba.fcp_cq != NULL) {
+		/* Release FCP completion queue */
+		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+			if (phba->sli4_hba.fcp_cq[idx] != NULL) {
+				lpfc_sli4_queue_free(
+					phba->sli4_hba.fcp_cq[idx]);
+				phba->sli4_hba.fcp_cq[idx] = NULL;
+			}
+		}
+		kfree(phba->sli4_hba.fcp_cq);
+		phba->sli4_hba.fcp_cq = NULL;
+	}
+
+	if (phba->sli4_hba.fcp_wq != NULL) {
+		/* Release FCP work queue */
+		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
+			if (phba->sli4_hba.fcp_wq[idx] != NULL) {
+				lpfc_sli4_queue_free(
+					phba->sli4_hba.fcp_wq[idx]);
+				phba->sli4_hba.fcp_wq[idx] = NULL;
+			}
+		}
+		kfree(phba->sli4_hba.fcp_wq);
+		phba->sli4_hba.fcp_wq = NULL;
+	}
+
+	/* Release FCP CQ mapping array */
+	if (phba->sli4_hba.fcp_cq_map != NULL) {
+		kfree(phba->sli4_hba.fcp_cq_map);
+		phba->sli4_hba.fcp_cq_map = NULL;
+	}
 
 	/* Release mailbox command work queue */
-	lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
-	phba->sli4_hba.mbx_wq = NULL;
+	if (phba->sli4_hba.mbx_wq != NULL) {
+		lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
+		phba->sli4_hba.mbx_wq = NULL;
+	}
 
 	/* Release ELS work queue */
-	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
-	phba->sli4_hba.els_wq = NULL;
-
-	/* Release FCP work queue */
-	if (phba->sli4_hba.fcp_wq != NULL)
-		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
-		     fcp_qidx++)
-			lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
-	kfree(phba->sli4_hba.fcp_wq);
-	phba->sli4_hba.fcp_wq = NULL;
+	if (phba->sli4_hba.els_wq != NULL) {
+		lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
+		phba->sli4_hba.els_wq = NULL;
+	}
 
 	/* Release unsolicited receive queue */
-	lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
-	phba->sli4_hba.hdr_rq = NULL;
-	lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
-	phba->sli4_hba.dat_rq = NULL;
+	if (phba->sli4_hba.hdr_rq != NULL) {
+		lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
+		phba->sli4_hba.hdr_rq = NULL;
+	}
+	if (phba->sli4_hba.dat_rq != NULL) {
+		lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
+		phba->sli4_hba.dat_rq = NULL;
+	}
 
 	/* Release ELS complete queue */
-	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
-	phba->sli4_hba.els_cq = NULL;
+	if (phba->sli4_hba.els_cq != NULL) {
+		lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
+		phba->sli4_hba.els_cq = NULL;
+	}
 
 	/* Release mailbox command complete queue */
-	lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
-	phba->sli4_hba.mbx_cq = NULL;
-
-	/* Release FCP response complete queue */
-	fcp_qidx = 0;
-	if (phba->sli4_hba.fcp_cq != NULL)
-		do
-			lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
-		while (++fcp_qidx < phba->cfg_fcp_eq_count);
-	kfree(phba->sli4_hba.fcp_cq);
-	phba->sli4_hba.fcp_cq = NULL;
-
-	/* Release fast-path event queue */
-	if (phba->sli4_hba.fp_eq != NULL)
-		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
-		     fcp_qidx++)
-			lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
-	kfree(phba->sli4_hba.fp_eq);
-	phba->sli4_hba.fp_eq = NULL;
-
-	/* Release slow-path event queue */
-	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
-	phba->sli4_hba.sp_eq = NULL;
+	if (phba->sli4_hba.mbx_cq != NULL) {
+		lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
+		phba->sli4_hba.mbx_cq = NULL;
+	}
 
 	return;
 }
@@ -6919,61 +6920,124 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
 int
 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 {
+	struct lpfc_sli *psli = &phba->sli;
+	struct lpfc_sli_ring *pring;
 	int rc = -ENOMEM;
 	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
 	int fcp_cq_index = 0;
 
 	/*
-	 * Set up Event Queues (EQs)
+	 * Set up HBA Event Queues (EQs)
 	 */
 
-	/* Set up slow-path event queue */
-	if (!phba->sli4_hba.sp_eq) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0520 Slow-path EQ not allocated\n");
-		goto out_error;
-	}
-	rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
-			    LPFC_SP_DEF_IMAX);
-	if (rc) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0521 Failed setup of slow-path EQ: "
-				"rc = 0x%x\n", rc);
-		goto out_error;
-	}
-	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-			"2583 Slow-path EQ setup: queue-id=%d\n",
-			phba->sli4_hba.sp_eq->queue_id);
-
-	/* Set up fast-path event queue */
-	if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) {
+	/* Set up HBA event queue */
+	if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"3147 Fast-path EQs not allocated\n");
 		rc = -ENOMEM;
-		goto out_destroy_sp_eq;
+		goto out_error;
 	}
-	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
-		if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
+	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
+		if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"0522 Fast-path EQ (%d) not "
 					"allocated\n", fcp_eqidx);
 			rc = -ENOMEM;
-			goto out_destroy_fp_eq;
+			goto out_destroy_hba_eq;
 		}
-		rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
-				    phba->cfg_fcp_imax);
+		rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
+			 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
 		if (rc) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"0523 Failed setup of fast-path EQ "
 					"(%d), rc = 0x%x\n", fcp_eqidx, rc);
-			goto out_destroy_fp_eq;
+			goto out_destroy_hba_eq;
 		}
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"2584 Fast-path EQ setup: "
+				"2584 HBA EQ setup: "
 				"queue[%d]-id=%d\n", fcp_eqidx,
-				phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
+				phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
 	}
 
+	/* Set up fast-path FCP Response Complete Queue */
+	if (!phba->sli4_hba.fcp_cq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3148 Fast-path FCP CQ array not "
+				"allocated\n");
+		rc = -ENOMEM;
+		goto out_destroy_hba_eq;
+	}
+
+	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
+		if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0526 Fast-path FCP CQ (%d) not "
+					"allocated\n", fcp_cqidx);
+			rc = -ENOMEM;
+			goto out_destroy_fcp_cq;
+		}
+		rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
+			phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
+		if (rc) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0527 Failed setup of fast-path FCP "
+					"CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
+			goto out_destroy_fcp_cq;
+		}
+
+		/* Setup fcp_cq_map for fast lookup */
+		phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
+				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
+
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"2588 FCP CQ setup: cq[%d]-id=%d, "
+				"parent seq[%d]-id=%d\n",
+				fcp_cqidx,
+				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
+				fcp_cqidx,
+				phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
+	}
+
+	/* Set up fast-path FCP Work Queue */
+	if (!phba->sli4_hba.fcp_wq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3149 Fast-path FCP WQ array not "
+				"allocated\n");
+		rc = -ENOMEM;
+		goto out_destroy_fcp_cq;
+	}
+
+	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
+		if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0534 Fast-path FCP WQ (%d) not "
+					"allocated\n", fcp_wqidx);
+			rc = -ENOMEM;
+			goto out_destroy_fcp_wq;
+		}
+		rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
+				    phba->sli4_hba.fcp_cq[fcp_wqidx],
+				    LPFC_FCP);
+		if (rc) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0535 Failed setup of fast-path FCP "
+					"WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
+			goto out_destroy_fcp_wq;
+		}
+
+		/* Bind this WQ to the next FCP ring */
+		pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
+		pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
+		phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
+
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"2591 FCP WQ setup: wq[%d]-id=%d, "
+				"parent cq[%d]-id=%d\n",
+				fcp_wqidx,
+				phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
+				fcp_cq_index,
+				phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
+	}
 	/*
 	 * Set up Complete Queues (CQs)
 	 */
@@ -6983,20 +7047,20 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0528 Mailbox CQ not allocated\n");
 		rc = -ENOMEM;
-		goto out_destroy_fp_eq;
+		goto out_destroy_fcp_wq;
 	}
-	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
-			    LPFC_MCQ, LPFC_MBOX);
+	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
+			phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
 	if (rc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0529 Failed setup of slow-path mailbox CQ: "
 				"rc = 0x%x\n", rc);
-		goto out_destroy_fp_eq;
+		goto out_destroy_fcp_wq;
 	}
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 			"2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
 			phba->sli4_hba.mbx_cq->queue_id,
-			phba->sli4_hba.sp_eq->queue_id);
+			phba->sli4_hba.hba_eq[0]->queue_id);
 
 	/* Set up slow-path ELS Complete Queue */
 	if (!phba->sli4_hba.els_cq) {
@@ -7005,8 +7069,8 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 		rc = -ENOMEM;
 		goto out_destroy_mbx_cq;
 	}
-	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
-			    LPFC_WCQ, LPFC_ELS);
+	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
+			phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
 	if (rc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0531 Failed setup of slow-path ELS CQ: "
@@ -7016,52 +7080,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 			"2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
 			phba->sli4_hba.els_cq->queue_id,
-			phba->sli4_hba.sp_eq->queue_id);
-
-	/* Set up fast-path FCP Response Complete Queue */
-	if (!phba->sli4_hba.fcp_cq) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"3148 Fast-path FCP CQ array not "
-				"allocated\n");
-		rc = -ENOMEM;
-		goto out_destroy_els_cq;
-	}
-	fcp_cqidx = 0;
-	do {
-		if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0526 Fast-path FCP CQ (%d) not "
-					"allocated\n", fcp_cqidx);
-			rc = -ENOMEM;
-			goto out_destroy_fcp_cq;
-		}
-		if (phba->cfg_fcp_eq_count)
-			rc = lpfc_cq_create(phba,
-					    phba->sli4_hba.fcp_cq[fcp_cqidx],
-					    phba->sli4_hba.fp_eq[fcp_cqidx],
-					    LPFC_WCQ, LPFC_FCP);
-		else
-			rc = lpfc_cq_create(phba,
-					    phba->sli4_hba.fcp_cq[fcp_cqidx],
-					    phba->sli4_hba.sp_eq,
-					    LPFC_WCQ, LPFC_FCP);
-		if (rc) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0527 Failed setup of fast-path FCP "
-					"CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
-			goto out_destroy_fcp_cq;
-		}
-		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"2588 FCP CQ setup: cq[%d]-id=%d, "
-				"parent %seq[%d]-id=%d\n",
-				fcp_cqidx,
-				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
-				(phba->cfg_fcp_eq_count) ? "" : "sp_",
-				fcp_cqidx,
-				(phba->cfg_fcp_eq_count) ?
-				   phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
-				   phba->sli4_hba.sp_eq->queue_id);
-	} while (++fcp_cqidx < phba->cfg_fcp_eq_count);
+			phba->sli4_hba.hba_eq[0]->queue_id);
 
 	/*
 	 * Set up all the Work Queues (WQs)
@@ -7072,7 +7091,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0538 Slow-path MQ not allocated\n");
 		rc = -ENOMEM;
-		goto out_destroy_fcp_cq;
+		goto out_destroy_els_cq;
 	}
 	rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
 			    phba->sli4_hba.mbx_cq, LPFC_MBOX);
@@ -7080,7 +7099,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0539 Failed setup of slow-path MQ: "
 				"rc = 0x%x\n", rc);
-		goto out_destroy_fcp_cq;
+		goto out_destroy_els_cq;
 	}
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 			"2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
@@ -7102,49 +7121,17 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 				"rc = 0x%x\n", rc);
 		goto out_destroy_mbx_wq;
 	}
+
+	/* Bind this WQ to the ELS ring */
+	pring = &psli->ring[LPFC_ELS_RING];
+	pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
+	phba->sli4_hba.els_cq->pring = pring;
+
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 			"2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
 			phba->sli4_hba.els_wq->queue_id,
 			phba->sli4_hba.els_cq->queue_id);
 
-	/* Set up fast-path FCP Work Queue */
-	if (!phba->sli4_hba.fcp_wq) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"3149 Fast-path FCP WQ array not "
-				"allocated\n");
-		rc = -ENOMEM;
-		goto out_destroy_els_wq;
-	}
-	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
-		if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0534 Fast-path FCP WQ (%d) not "
-					"allocated\n", fcp_wqidx);
-			rc = -ENOMEM;
-			goto out_destroy_fcp_wq;
-		}
-		rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
-				    phba->sli4_hba.fcp_cq[fcp_cq_index],
-				    LPFC_FCP);
-		if (rc) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0535 Failed setup of fast-path FCP "
-					"WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
-			goto out_destroy_fcp_wq;
-		}
-		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"2591 FCP WQ setup: wq[%d]-id=%d, "
-				"parent cq[%d]-id=%d\n",
-				fcp_wqidx,
-				phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
-				fcp_cq_index,
-				phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
-		/* Round robin FCP Work Queue's Completion Queue assignment */
-		if (phba->cfg_fcp_eq_count)
-			fcp_cq_index = ((fcp_cq_index + 1) %
-					phba->cfg_fcp_eq_count);
-	}
-
 	/*
 	 * Create Receive Queue (RQ)
 	 */
@@ -7152,7 +7139,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0540 Receive Queue not allocated\n");
 		rc = -ENOMEM;
-		goto out_destroy_fcp_wq;
+		goto out_destroy_els_wq;
 	}
 
 	lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
@@ -7175,25 +7162,23 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 			phba->sli4_hba.els_cq->queue_id);
 	return 0;
 
-out_destroy_fcp_wq:
-	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
-		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
 out_destroy_els_wq:
 	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
 out_destroy_mbx_wq:
 	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
-out_destroy_fcp_cq:
-	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
-		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
 out_destroy_els_cq:
 	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
 out_destroy_mbx_cq:
 	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
-out_destroy_fp_eq:
+out_destroy_fcp_wq:
+	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
+		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
+out_destroy_fcp_cq:
+	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
+		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
+out_destroy_hba_eq:
 	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
-		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
-out_destroy_sp_eq:
-	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
+		lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
 out_error:
 	return rc;
 }
@@ -7222,27 +7207,27 @@ lpfc_sli4_queue_unset(struct lpfc_hba *phba)
 	/* Unset unsolicited receive queue */
 	lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
 	/* Unset FCP work queue */
-	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
-		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
+	if (phba->sli4_hba.fcp_wq) {
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
+		     fcp_qidx++)
+			lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
+	}
 	/* Unset mailbox command complete queue */
 	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
 	/* Unset ELS complete queue */
 	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
 	/* Unset FCP response complete queue */
 	if (phba->sli4_hba.fcp_cq) {
-		fcp_qidx = 0;
-		do {
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
+		     fcp_qidx++)
 			lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
-		} while (++fcp_qidx < phba->cfg_fcp_eq_count);
 	}
 	/* Unset fast-path event queue */
-	if (phba->sli4_hba.fp_eq) {
-		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
+	if (phba->sli4_hba.hba_eq) {
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
 		     fcp_qidx++)
-			lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
+			lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
 	}
-	/* Unset slow-path event queue */
-	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
 }
 
 /**
@@ -7590,10 +7575,11 @@ lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
 	/* Set up NOP SLI4_CONFIG mailbox-ioctl command */
 	length = (sizeof(struct lpfc_mbx_nop) -
 		  sizeof(struct lpfc_sli4_cfg_mhdr));
-	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
-			 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
 
 	for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
+		lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+				 LPFC_MBOX_OPCODE_NOP, length,
+				 LPFC_SLI4_MBX_EMBED);
 		if (!phba->sli4_hba.intr_enable)
 			rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 		else {
@@ -8133,33 +8119,22 @@ enable_msix_vectors:
 				"message=%d\n", index,
 				phba->sli4_hba.msix_entries[index].vector,
 				phba->sli4_hba.msix_entries[index].entry);
+
 	/*
 	 * Assign MSI-X vectors to interrupt handlers
 	 */
-	if (vectors > 1)
-		rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
-				 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
-				 LPFC_SP_DRIVER_HANDLER_NAME, phba);
-	else
-		/* All Interrupts need to be handled by one EQ */
-		rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
-				 &lpfc_sli4_intr_handler, IRQF_SHARED,
-				 LPFC_DRIVER_NAME, phba);
-	if (rc) {
-		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
-				"0485 MSI-X slow-path request_irq failed "
-				"(%d)\n", rc);
-		goto msi_fail_out;
-	}
+	for (index = 0; index < vectors; index++) {
+		memset(&phba->sli4_hba.handler_name[index], 0, 16);
+		sprintf((char *)&phba->sli4_hba.handler_name[index],
+			 LPFC_DRIVER_HANDLER_NAME"%d", index);
 
-	/* The rest of the vector(s) are associated to fast-path handler(s) */
-	for (index = 1; index < vectors; index++) {
-		phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
-		phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
+		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+		atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
 		rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
-				 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
-				 LPFC_FP_DRIVER_HANDLER_NAME,
-				 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
+				 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
+				 (char *)&phba->sli4_hba.handler_name[index],
+				 &phba->sli4_hba.fcp_eq_hdl[index]);
 		if (rc) {
 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 					"0486 MSI-X fast-path (%d) "
@@ -8173,12 +8148,9 @@ enable_msix_vectors:
 
 cfg_fail_out:
 	/* free the irq already requested */
-	for (--index; index >= 1; index--)
-		free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
-			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
-
-	/* free the irq already requested */
-	free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
+	for (--index; index >= 0; index--)
+		free_irq(phba->sli4_hba.msix_entries[index].vector,
+			 &phba->sli4_hba.fcp_eq_hdl[index]);
 
 msi_fail_out:
 	/* Unconfigure MSI-X capability structure */
@@ -8199,11 +8171,9 @@ lpfc_sli4_disable_msix(struct lpfc_hba *phba)
 	int index;
 
 	/* Free up MSI-X multi-message vectors */
-	free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
-
-	for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
+	for (index = 0; index < phba->sli4_hba.msix_vec_nr; index++)
 		free_irq(phba->sli4_hba.msix_entries[index].vector,
-			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
+			 &phba->sli4_hba.fcp_eq_hdl[index]);
 
 	/* Disable MSI-X */
 	pci_disable_msix(phba->pcidev);
@@ -8249,7 +8219,7 @@ lpfc_sli4_enable_msi(struct lpfc_hba *phba)
 		return rc;
 	}
 
-	for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
+	for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
 		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
 		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
 	}
@@ -8329,10 +8299,12 @@ lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
 			/* Indicate initialization to INTx mode */
 			phba->intr_type = INTx;
 			intr_mode = 0;
-			for (index = 0; index < phba->cfg_fcp_eq_count;
+			for (index = 0; index < phba->cfg_fcp_io_channel;
 			     index++) {
 				phba->sli4_hba.fcp_eq_hdl[index].idx = index;
 				phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+				atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
+					fcp_eq_in_use, 1);
 			}
 		}
 	}
@@ -9449,7 +9421,7 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
 	int error;
 	uint32_t cfg_mode, intr_mode;
 	int mcnt;
-	int adjusted_fcp_eq_count;
+	int adjusted_fcp_io_channel;
 	const struct firmware *fw;
 	uint8_t file_name[16];
 
@@ -9552,13 +9524,13 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
 		}
 		/* Default to single EQ for non-MSI-X */
 		if (phba->intr_type != MSIX)
-			adjusted_fcp_eq_count = 0;
+			adjusted_fcp_io_channel = 1;
 		else if (phba->sli4_hba.msix_vec_nr <
-					phba->cfg_fcp_eq_count + 1)
-			adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
+					phba->cfg_fcp_io_channel)
+			adjusted_fcp_io_channel = phba->sli4_hba.msix_vec_nr;
 		else
-			adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
-		phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
+			adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
+		phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
 		/* Set up SLI-4 HBA */
 		if (lpfc_sli4_hba_setup(phba)) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -9694,6 +9666,7 @@ lpfc_pci_remove_one_s4(struct pci_dev *pdev)
 	 * buffers are released to their corresponding pools here.
 	 */
 	lpfc_scsi_free(phba);
+
 	lpfc_sli4_driver_resource_unset(phba);
 
 	/* Unmap adapter Control and Doorbell registers */
@@ -10420,12 +10393,16 @@ static struct pci_device_id lpfc_id_table[] = {
 		PCI_ANY_ID, PCI_ANY_ID, },
 	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
 		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
+		PCI_ANY_ID, PCI_ANY_ID, },
+	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
+		PCI_ANY_ID, PCI_ANY_ID, },
 	{ 0 }
 };
 
 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
 
-static struct pci_error_handlers lpfc_err_handler = {
+static const struct pci_error_handlers lpfc_err_handler = {
 	.error_detected = lpfc_io_error_detected,
 	.slot_reset = lpfc_io_slot_reset,
 	.resume = lpfc_io_resume,
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 20336f09fb3..efc9cd9def8 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -92,7 +92,7 @@ lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
 	memset(mp->virt, 0, LPFC_BPL_SIZE);
 	INIT_LIST_HEAD(&mp->list);
 	/* save address for completion */
-	pmb->context2 = (uint8_t *) mp;
+	pmb->context1 = (uint8_t *)mp;
 	mb->un.varWords[3] = putPaddrLow(mp->phys);
 	mb->un.varWords[4] = putPaddrHigh(mp->phys);
 	mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);
@@ -950,44 +950,47 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
 	for (i = 0; i < psli->num_rings; i++) {
 		pring = &psli->ring[i];
 
-		pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE:
+		pring->sli.sli3.sizeCiocb =
+			phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE :
 							SLI2_IOCB_CMD_SIZE;
-		pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE:
+		pring->sli.sli3.sizeRiocb =
+			phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE :
 							SLI2_IOCB_RSP_SIZE;
 		/* A ring MUST have both cmd and rsp entries defined to be
 		   valid */
-		if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
+		if ((pring->sli.sli3.numCiocb == 0) ||
+			(pring->sli.sli3.numRiocb == 0)) {
 			pcbp->rdsc[i].cmdEntries = 0;
 			pcbp->rdsc[i].rspEntries = 0;
 			pcbp->rdsc[i].cmdAddrHigh = 0;
 			pcbp->rdsc[i].rspAddrHigh = 0;
 			pcbp->rdsc[i].cmdAddrLow = 0;
 			pcbp->rdsc[i].rspAddrLow = 0;
-			pring->cmdringaddr = NULL;
-			pring->rspringaddr = NULL;
+			pring->sli.sli3.cmdringaddr = NULL;
+			pring->sli.sli3.rspringaddr = NULL;
 			continue;
 		}
 		/* Command ring setup for ring */
-		pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
-		pcbp->rdsc[i].cmdEntries = pring->numCiocb;
+		pring->sli.sli3.cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
+		pcbp->rdsc[i].cmdEntries = pring->sli.sli3.numCiocb;
 
 		offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
 			 (uint8_t *) phba->slim2p.virt;
 		pdma_addr = phba->slim2p.phys + offset;
 		pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
 		pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
-		iocbCnt += pring->numCiocb;
+		iocbCnt += pring->sli.sli3.numCiocb;
 
 		/* Response ring setup for ring */
-		pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt];
+		pring->sli.sli3.rspringaddr = (void *) &phba->IOCBs[iocbCnt];
 
-		pcbp->rdsc[i].rspEntries = pring->numRiocb;
+		pcbp->rdsc[i].rspEntries = pring->sli.sli3.numRiocb;
 		offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
 			 (uint8_t *)phba->slim2p.virt;
 		pdma_addr = phba->slim2p.phys + offset;
 		pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
 		pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
-		iocbCnt += pring->numRiocb;
+		iocbCnt += pring->sli.sli3.numRiocb;
 	}
 }
 
@@ -1609,12 +1612,15 @@ lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 
 	switch (mbox->mbxCommand) {
 	case MBX_WRITE_NV:	/* 0x03 */
+	case MBX_DUMP_MEMORY:	/* 0x17 */
 	case MBX_UPDATE_CFG:	/* 0x1B */
 	case MBX_DOWN_LOAD:	/* 0x1C */
 	case MBX_DEL_LD_ENTRY:	/* 0x1D */
+	case MBX_WRITE_VPARMS:	/* 0x32 */
 	case MBX_LOAD_AREA:	/* 0x81 */
 	case MBX_WRITE_WWN:     /* 0x98 */
 	case MBX_LOAD_EXP_ROM:	/* 0x9C */
+	case MBX_ACCESS_VDATA:	/* 0xA5 */
 		return LPFC_MBOX_TMO_FLASH_CMD;
 	case MBX_SLI4_CONFIG:	/* 0x9b */
 		subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
@@ -1625,11 +1631,17 @@ lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 			case LPFC_MBOX_OPCODE_WRITE_OBJECT:
 			case LPFC_MBOX_OPCODE_READ_OBJECT_LIST:
 			case LPFC_MBOX_OPCODE_DELETE_OBJECT:
-			case LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG:
 			case LPFC_MBOX_OPCODE_GET_PROFILE_LIST:
 			case LPFC_MBOX_OPCODE_SET_ACT_PROFILE:
+			case LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG:
 			case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG:
 			case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG:
+			case LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES:
+			case LPFC_MBOX_OPCODE_SEND_ACTIVATION:
+			case LPFC_MBOX_OPCODE_RESET_LICENSES:
+			case LPFC_MBOX_OPCODE_SET_BOOT_CONFIG:
+			case LPFC_MBOX_OPCODE_GET_VPD_DATA:
+			case LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG:
 				return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
 			}
 		}
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index ade763d3930..cd86069a0ba 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2012 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -194,6 +194,10 @@ lpfc_mem_free(struct lpfc_hba *phba)
 		pci_pool_destroy(phba->lpfc_hbq_pool);
 	phba->lpfc_hbq_pool = NULL;
 
+	if (phba->rrq_pool)
+		mempool_destroy(phba->rrq_pool);
+	phba->rrq_pool = NULL;
+
 	/* Free NLP memory pool */
 	mempool_destroy(phba->nlp_mem_pool);
 	phba->nlp_mem_pool = NULL;
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 9133a97f045..d8fadcb2db7 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -1778,6 +1778,117 @@ lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
 }
 
 static uint32_t
+lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			  void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
+	struct ls_rjt     stat;
+
+	memset(&stat, 0, sizeof(struct ls_rjt));
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
+	lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			 void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
+	struct ls_rjt     stat;
+
+	memset(&stat, 0, sizeof(struct ls_rjt));
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
+	lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			 void *arg, uint32_t evt)
+{
+	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
+	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
+
+	spin_lock_irq(shost->host_lock);
+	ndlp->nlp_flag &= NLP_LOGO_ACC;
+	spin_unlock_irq(shost->host_lock);
+	lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			   void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
+	struct ls_rjt     stat;
+
+	memset(&stat, 0, sizeof(struct ls_rjt));
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
+	lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			 void *arg, uint32_t evt)
+{
+	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
+	struct ls_rjt     stat;
+
+	memset(&stat, 0, sizeof(struct ls_rjt));
+	stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
+	lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			  void *arg, uint32_t evt)
+{
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+	ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
+	lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+	spin_lock_irq(shost->host_lock);
+	ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
+	spin_unlock_irq(shost->host_lock);
+	lpfc_disc_set_adisc(vport, ndlp);
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+			  void *arg, uint32_t evt)
+{
+	/*
+	 * Take no action.  If a LOGO is outstanding, then possibly DevLoss has
+	 * timed out and is calling for Device Remove.  In this case, the LOGO
+	 * must be allowed to complete in state LOGO_ISSUE so that the rpi
+	 * and other NLP flags are correctly cleaned up.
+	 */
+	return ndlp->nlp_state;
+}
+
+static uint32_t
+lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
+			     struct lpfc_nodelist *ndlp,
+			     void *arg, uint32_t evt)
+{
+	/*
+	 * Device Recovery events have no meaning for a node with a LOGO
+	 * outstanding.  The LOGO has to complete first and handle the
+	 * node from that point.
+	 */
+	return ndlp->nlp_state;
+}
+
+static uint32_t
 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			  void *arg, uint32_t evt)
 {
@@ -2083,6 +2194,8 @@ lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			void *arg, uint32_t evt)
 {
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+	/* For the fabric port just clear the fc flags. */
 	if (ndlp->nlp_DID == Fabric_DID) {
 		spin_lock_irq(shost->host_lock);
 		vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
@@ -2297,6 +2410,20 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
 	lpfc_device_rm_prli_issue,	/* DEVICE_RM       */
 	lpfc_device_recov_prli_issue,	/* DEVICE_RECOVERY */
 
+	lpfc_rcv_plogi_logo_issue,	/* RCV_PLOGI   LOGO_ISSUE     */
+	lpfc_rcv_prli_logo_issue,	/* RCV_PRLI        */
+	lpfc_rcv_logo_logo_issue,	/* RCV_LOGO        */
+	lpfc_rcv_padisc_logo_issue,	/* RCV_ADISC       */
+	lpfc_rcv_padisc_logo_issue,	/* RCV_PDISC       */
+	lpfc_rcv_prlo_logo_issue,	/* RCV_PRLO        */
+	lpfc_cmpl_plogi_illegal,	/* CMPL_PLOGI      */
+	lpfc_disc_illegal,		/* CMPL_PRLI       */
+	lpfc_cmpl_logo_logo_issue,	/* CMPL_LOGO       */
+	lpfc_disc_illegal,		/* CMPL_ADISC      */
+	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
+	lpfc_device_rm_logo_issue,	/* DEVICE_RM       */
+	lpfc_device_recov_logo_issue,	/* DEVICE_RECOVERY */
+
 	lpfc_rcv_plogi_unmap_node,	/* RCV_PLOGI   UNMAPPED_NODE  */
 	lpfc_rcv_prli_unmap_node,	/* RCV_PRLI        */
 	lpfc_rcv_logo_unmap_node,	/* RCV_LOGO        */
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 925975d2d76..64013f3097a 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -60,12 +60,6 @@ static char *dif_op_str[] = {
 	"PROT_WRITE_PASS",
 };
 
-static char *dif_grd_str[] = {
-	"NO_GUARD",
-	"DIF_CRC",
-	"DIX_IP",
-};
-
 struct scsi_dif_tuple {
 	__be16 guard_tag;       /* Checksum */
 	__be16 app_tag;         /* Opaque storage */
@@ -3482,9 +3476,15 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	}
 	lp = (uint32_t *)cmnd->sense_buffer;
 
-	if (!scsi_status && (resp_info & RESID_UNDER) &&
-		vport->cfg_log_verbose & LOG_FCP_UNDER)
-		logit = LOG_FCP_UNDER;
+	/* special handling for under run conditions */
+	if (!scsi_status && (resp_info & RESID_UNDER)) {
+		/* don't log under runs if fcp set... */
+		if (vport->cfg_log_verbose & LOG_FCP)
+			logit = LOG_FCP_ERROR;
+		/* unless operator says so */
+		if (vport->cfg_log_verbose & LOG_FCP_UNDER)
+			logit = LOG_FCP_UNDER;
+	}
 
 	lpfc_printf_vlog(vport, KERN_WARNING, logit,
 			 "9024 FCP command x%x failed: x%x SNS x%x x%x "
@@ -3552,11 +3552,11 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 
 	/*
 	 * Check SLI validation that all the transfer was actually done
-	 * (fcpi_parm should be zero). Apply check only to reads.
+	 * (fcpi_parm should be zero).
 	 */
-	} else if (fcpi_parm && (cmnd->sc_data_direction == DMA_FROM_DEVICE)) {
+	} else if (fcpi_parm) {
 		lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR,
-				 "9029 FCP Read Check Error Data: "
+				 "9029 FCP Data Transfer Check Error: "
 				 "x%x x%x x%x x%x x%x\n",
 				 be32_to_cpu(fcpcmd->fcpDl),
 				 be32_to_cpu(fcprsp->rspResId),
@@ -3615,7 +3615,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	cmd = lpfc_cmd->pCmd;
 	shost = cmd->device->host;
 
-	lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4];
+	lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK);
 	lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
 	/* pick up SLI4 exhange busy status from HBA */
 	lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY;
@@ -3660,10 +3660,10 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 			lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
 		else if (lpfc_cmd->status >= IOSTAT_CNT)
 			lpfc_cmd->status = IOSTAT_DEFAULT;
-		if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR
-			&& !lpfc_cmd->fcp_rsp->rspStatus3
-			&& (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER)
-			&& !(phba->cfg_log_verbose & LOG_FCP_UNDER))
+		if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR &&
+		    !lpfc_cmd->fcp_rsp->rspStatus3 &&
+		    (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) &&
+		    !(vport->cfg_log_verbose & LOG_FCP_UNDER))
 			logit = 0;
 		else
 			logit = LOG_FCP | LOG_FCP_UNDER;
@@ -3829,12 +3829,15 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	cmd->scsi_done(cmd);
 
 	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		spin_lock_irq(&phba->hbalock);
+		lpfc_cmd->pCmd = NULL;
+		spin_unlock_irq(&phba->hbalock);
+
 		/*
 		 * If there is a thread waiting for command completion
 		 * wake up the thread.
 		 */
 		spin_lock_irqsave(shost->host_lock, flags);
-		lpfc_cmd->pCmd = NULL;
 		if (lpfc_cmd->waitq)
 			wake_up(lpfc_cmd->waitq);
 		spin_unlock_irqrestore(shost->host_lock, flags);
@@ -3868,12 +3871,15 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 		}
 	}
 
+	spin_lock_irq(&phba->hbalock);
+	lpfc_cmd->pCmd = NULL;
+	spin_unlock_irq(&phba->hbalock);
+
 	/*
 	 * If there is a thread waiting for command completion
 	 * wake up the thread.
 	 */
 	spin_lock_irqsave(shost->host_lock, flags);
-	lpfc_cmd->pCmd = NULL;
 	if (lpfc_cmd->waitq)
 		wake_up(lpfc_cmd->waitq);
 	spin_unlock_irqrestore(shost->host_lock, flags);
@@ -3919,6 +3925,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq);
 	int datadir = scsi_cmnd->sc_data_direction;
 	char tag[2];
+	uint8_t *ptr;
+	bool sli4;
 
 	if (!pnode || !NLP_CHK_NODE_ACT(pnode))
 		return;
@@ -3930,8 +3938,13 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	int_to_scsilun(lpfc_cmd->pCmd->device->lun,
 			&lpfc_cmd->fcp_cmnd->fcp_lun);
 
-	memset(&fcp_cmnd->fcpCdb[0], 0, LPFC_FCP_CDB_LEN);
-	memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
+	ptr = &fcp_cmnd->fcpCdb[0];
+	memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
+	if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) {
+		ptr += scsi_cmnd->cmd_len;
+		memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len));
+	}
+
 	if (scsi_populate_tag_msg(scsi_cmnd, tag)) {
 		switch (tag[0]) {
 		case HEAD_OF_QUEUE_TAG:
@@ -3947,6 +3960,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	} else
 		fcp_cmnd->fcpCntl1 = 0;
 
+	sli4 = (phba->sli_rev == LPFC_SLI_REV4);
+
 	/*
 	 * There are three possibilities here - use scatter-gather segment, use
 	 * the single mapping, or neither.  Start the lpfc command prep by
@@ -3956,11 +3971,12 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	if (scsi_sg_count(scsi_cmnd)) {
 		if (datadir == DMA_TO_DEVICE) {
 			iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR;
-			if (phba->sli_rev < LPFC_SLI_REV4) {
+			if (sli4)
+				iocb_cmd->ulpPU = PARM_READ_CHECK;
+			else {
 				iocb_cmd->un.fcpi.fcpi_parm = 0;
 				iocb_cmd->ulpPU = 0;
-			} else
-				iocb_cmd->ulpPU = PARM_READ_CHECK;
+			}
 			fcp_cmnd->fcpCntl3 = WRITE_DATA;
 			phba->fc4OutputRequests++;
 		} else {
@@ -3984,7 +4000,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	 * of the scsi_cmnd request_buffer
 	 */
 	piocbq->iocb.ulpContext = pnode->nlp_rpi;
-	if (phba->sli_rev == LPFC_SLI_REV4)
+	if (sli4)
 		piocbq->iocb.ulpContext =
 		  phba->sli4_hba.rpi_ids[pnode->nlp_rpi];
 	if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE)
@@ -4241,9 +4257,8 @@ void lpfc_poll_timeout(unsigned long ptr)
  *   SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily.
  **/
 static int
-lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
+lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 {
-	struct Scsi_Host  *shost = cmnd->device->host;
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 	struct lpfc_rport_data *rdata = cmnd->device->hostdata;
@@ -4299,53 +4314,28 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	lpfc_cmd->timeout = 0;
 	lpfc_cmd->start_time = jiffies;
 	cmnd->host_scribble = (unsigned char *)lpfc_cmd;
-	cmnd->scsi_done = done;
 
 	if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) {
 		if (vport->phba->cfg_enable_bg) {
-			lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
-				"9033 BLKGRD: rcvd protected cmd:%02x op=%s "
-				"guard=%s\n", cmnd->cmnd[0],
-				dif_op_str[scsi_get_prot_op(cmnd)],
-				dif_grd_str[scsi_host_get_guard(shost)]);
-			if (cmnd->cmnd[0] == READ_10)
-				lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
-					"9035 BLKGRD: READ @ sector %llu, "
-					"cnt %u, rpt %d\n",
-					(unsigned long long)scsi_get_lba(cmnd),
-					blk_rq_sectors(cmnd->request),
-					(cmnd->cmnd[1]>>5));
-			else if (cmnd->cmnd[0] == WRITE_10)
-				lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
-					"9036 BLKGRD: WRITE @ sector %llu, "
-					"cnt %u, wpt %d\n",
-					(unsigned long long)scsi_get_lba(cmnd),
-					blk_rq_sectors(cmnd->request),
-					(cmnd->cmnd[1]>>5));
+			lpfc_printf_vlog(vport, KERN_INFO, LOG_BG,
+					 "9033 BLKGRD: rcvd %s cmd:x%x "
+					 "sector x%llx cnt %u pt %x\n",
+					 dif_op_str[scsi_get_prot_op(cmnd)],
+					 cmnd->cmnd[0],
+					 (unsigned long long)scsi_get_lba(cmnd),
+					 blk_rq_sectors(cmnd->request),
+					 (cmnd->cmnd[1]>>5));
 		}
-
 		err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd);
 	} else {
 		if (vport->phba->cfg_enable_bg) {
-			lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
-				"9038 BLKGRD: rcvd unprotected cmd:"
-				"%02x op=%s guard=%s\n", cmnd->cmnd[0],
-				dif_op_str[scsi_get_prot_op(cmnd)],
-				dif_grd_str[scsi_host_get_guard(shost)]);
-			if (cmnd->cmnd[0] == READ_10)
-				lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
-					"9040 dbg: READ @ sector %llu, "
-					"cnt %u, rpt %d\n",
-					(unsigned long long)scsi_get_lba(cmnd),
+			lpfc_printf_vlog(vport, KERN_INFO, LOG_BG,
+					 "9038 BLKGRD: rcvd PROT_NORMAL cmd: "
+					 "x%x sector x%llx cnt %u pt %x\n",
+					 cmnd->cmnd[0],
+					 (unsigned long long)scsi_get_lba(cmnd),
 					 blk_rq_sectors(cmnd->request),
-					(cmnd->cmnd[1]>>5));
-			else if (cmnd->cmnd[0] == WRITE_10)
-				lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
-					"9041 dbg: WRITE @ sector %llu, "
-					"cnt %u, wpt %d\n",
-					(unsigned long long)scsi_get_lba(cmnd),
-					blk_rq_sectors(cmnd->request),
-					(cmnd->cmnd[1]>>5));
+					 (cmnd->cmnd[1]>>5));
 		}
 		err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd);
 	}
@@ -4363,11 +4353,9 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 		goto out_host_busy_free_buf;
 	}
 	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
-		spin_unlock(shost->host_lock);
 		lpfc_sli_handle_fast_ring_event(phba,
 			&phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ);
 
-		spin_lock(shost->host_lock);
 		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
 			lpfc_poll_rearm_timer(phba);
 	}
@@ -4384,11 +4372,10 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	return SCSI_MLQUEUE_TARGET_BUSY;
 
  out_fail_command:
-	done(cmnd);
+	cmnd->scsi_done(cmnd);
 	return 0;
 }
 
-static DEF_SCSI_QCMD(lpfc_queuecommand)
 
 /**
  * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point
@@ -4414,7 +4401,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
 
 	status = fc_block_scsi_eh(cmnd);
-	if (status)
+	if (status != 0 && status != SUCCESS)
 		return status;
 
 	spin_lock_irq(&phba->hbalock);
@@ -4428,7 +4415,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 	}
 
 	lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
-	if (!lpfc_cmd) {
+	if (!lpfc_cmd || !lpfc_cmd->pCmd) {
 		spin_unlock_irq(&phba->hbalock);
 		lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
 			 "2873 SCSI Layer I/O Abort Request IO CMPL Status "
@@ -4521,9 +4508,10 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 		ret = FAILED;
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
 				 "0748 abort handler timed out waiting "
-				 "for abort to complete: ret %#x, ID %d, "
-				 "LUN %d\n",
-				 ret, cmnd->device->id, cmnd->device->lun);
+				 "for abortng I/O (xri:x%x) to complete: "
+				 "ret %#x, ID %d, LUN %d\n",
+				 iocb->sli4_xritag, ret,
+				 cmnd->device->id, cmnd->device->lun);
 	}
 	goto out;
 
@@ -4769,7 +4757,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
 	}
 	pnode = rdata->pnode;
 	status = fc_block_scsi_eh(cmnd);
-	if (status)
+	if (status != 0 && status != SUCCESS)
 		return status;
 
 	status = lpfc_chk_tgt_mapped(vport, cmnd);
@@ -4836,7 +4824,7 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
 	}
 	pnode = rdata->pnode;
 	status = fc_block_scsi_eh(cmnd);
-	if (status)
+	if (status != 0 && status != SUCCESS)
 		return status;
 
 	status = lpfc_chk_tgt_mapped(vport, cmnd);
@@ -4904,7 +4892,7 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
 		sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID);
 
 	status = fc_block_scsi_eh(cmnd);
-	if (status)
+	if (status != 0 && status != SUCCESS)
 		return status;
 
 	/*
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 9cbd20b1328..219bf534ef9 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -69,6 +69,8 @@ static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
 				    struct lpfc_cqe *);
 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
 				       int);
+static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
+			uint32_t);
 
 static IOCB_t *
 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
@@ -94,6 +96,7 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
 	union lpfc_wqe *temp_wqe;
 	struct lpfc_register doorbell;
 	uint32_t host_index;
+	uint32_t idx;
 
 	/* sanity check on queue memory */
 	if (unlikely(!q))
@@ -101,8 +104,12 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
 	temp_wqe = q->qe[q->host_index].wqe;
 
 	/* If the host has not yet processed the next entry then we are done */
-	if (((q->host_index + 1) % q->entry_count) == q->hba_index)
+	idx = ((q->host_index + 1) % q->entry_count);
+	if (idx == q->hba_index) {
+		q->WQ_overflow++;
 		return -ENOMEM;
+	}
+	q->WQ_posted++;
 	/* set consumption flag every once in a while */
 	if (!((q->host_index + 1) % q->entry_repost))
 		bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
@@ -112,7 +119,8 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
 
 	/* Update the host index before invoking device */
 	host_index = q->host_index;
-	q->host_index = ((q->host_index + 1) % q->entry_count);
+
+	q->host_index = idx;
 
 	/* Ring Doorbell */
 	doorbell.word0 = 0;
@@ -120,7 +128,6 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
 	bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
 	bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
 	writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
-	readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
 
 	return 0;
 }
@@ -194,7 +201,6 @@ lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
 	bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
 	bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
 	writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
-	readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
 	return 0;
 }
 
@@ -234,6 +240,7 @@ static struct lpfc_eqe *
 lpfc_sli4_eq_get(struct lpfc_queue *q)
 {
 	struct lpfc_eqe *eqe;
+	uint32_t idx;
 
 	/* sanity check on queue memory */
 	if (unlikely(!q))
@@ -244,14 +251,34 @@ lpfc_sli4_eq_get(struct lpfc_queue *q)
 	if (!bf_get_le32(lpfc_eqe_valid, eqe))
 		return NULL;
 	/* If the host has not yet processed the next entry then we are done */
-	if (((q->hba_index + 1) % q->entry_count) == q->host_index)
+	idx = ((q->hba_index + 1) % q->entry_count);
+	if (idx == q->host_index)
 		return NULL;
 
-	q->hba_index = ((q->hba_index + 1) % q->entry_count);
+	q->hba_index = idx;
 	return eqe;
 }
 
 /**
+ * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
+ * @q: The Event Queue to disable interrupts
+ *
+ **/
+static inline void
+lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
+{
+	struct lpfc_register doorbell;
+
+	doorbell.word0 = 0;
+	bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
+	bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
+	bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
+		(q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
+	bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
+	writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
+}
+
+/**
  * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
  * @q: The Event Queue that the host has completed processing for.
  * @arm: Indicates whether the host wants to arms this CQ.
@@ -318,6 +345,7 @@ static struct lpfc_cqe *
 lpfc_sli4_cq_get(struct lpfc_queue *q)
 {
 	struct lpfc_cqe *cqe;
+	uint32_t idx;
 
 	/* sanity check on queue memory */
 	if (unlikely(!q))
@@ -327,11 +355,12 @@ lpfc_sli4_cq_get(struct lpfc_queue *q)
 	if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
 		return NULL;
 	/* If the host has not yet processed the next entry then we are done */
-	if (((q->hba_index + 1) % q->entry_count) == q->host_index)
+	idx = ((q->hba_index + 1) % q->entry_count);
+	if (idx == q->host_index)
 		return NULL;
 
 	cqe = q->qe[q->hba_index].cqe;
-	q->hba_index = ((q->hba_index + 1) % q->entry_count);
+	q->hba_index = idx;
 	return cqe;
 }
 
@@ -472,8 +501,8 @@ lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
 static inline IOCB_t *
 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 {
-	return (IOCB_t *) (((char *) pring->cmdringaddr) +
-			   pring->cmdidx * phba->iocb_cmd_size);
+	return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
+			   pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
 }
 
 /**
@@ -489,8 +518,8 @@ lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 static inline IOCB_t *
 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 {
-	return (IOCB_t *) (((char *) pring->rspringaddr) +
-			   pring->rspidx * phba->iocb_rsp_size);
+	return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
+			   pring->sli.sli3.rspidx * phba->iocb_rsp_size);
 }
 
 /**
@@ -1320,21 +1349,23 @@ static IOCB_t *
 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 {
 	struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
-	uint32_t  max_cmd_idx = pring->numCiocb;
-	if ((pring->next_cmdidx == pring->cmdidx) &&
-	   (++pring->next_cmdidx >= max_cmd_idx))
-		pring->next_cmdidx = 0;
+	uint32_t  max_cmd_idx = pring->sli.sli3.numCiocb;
+	if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
+	   (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
+		pring->sli.sli3.next_cmdidx = 0;
 
-	if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
+	if (unlikely(pring->sli.sli3.local_getidx ==
+		pring->sli.sli3.next_cmdidx)) {
 
-		pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+		pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
 
-		if (unlikely(pring->local_getidx >= max_cmd_idx)) {
+		if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 					"0315 Ring %d issue: portCmdGet %d "
 					"is bigger than cmd ring %d\n",
 					pring->ringno,
-					pring->local_getidx, max_cmd_idx);
+					pring->sli.sli3.local_getidx,
+					max_cmd_idx);
 
 			phba->link_state = LPFC_HBA_ERROR;
 			/*
@@ -1349,7 +1380,7 @@ lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 			return NULL;
 		}
 
-		if (pring->local_getidx == pring->next_cmdidx)
+		if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
 			return NULL;
 	}
 
@@ -1484,8 +1515,8 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	 * Let the HBA know what IOCB slot will be the next one the
 	 * driver will put a command into.
 	 */
-	pring->cmdidx = pring->next_cmdidx;
-	writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
+	pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
+	writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
 }
 
 /**
@@ -2056,6 +2087,7 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
 	case MBX_READ_EVENT_LOG:
 	case MBX_SECURITY_MGMT:
 	case MBX_AUTH_PORT:
+	case MBX_ACCESS_VDATA:
 		ret = mbxCommand;
 		break;
 	default:
@@ -2786,7 +2818,7 @@ lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 			"0312 Ring %d handler: portRspPut %d "
 			"is bigger than rsp ring %d\n",
 			pring->ringno, le32_to_cpu(pgp->rspPutInx),
-			pring->numRiocb);
+			pring->sli.sli3.numRiocb);
 
 	phba->link_state = LPFC_HBA_ERROR;
 
@@ -2815,10 +2847,26 @@ lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 void lpfc_poll_eratt(unsigned long ptr)
 {
 	struct lpfc_hba *phba;
-	uint32_t eratt = 0;
+	uint32_t eratt = 0, rem;
+	uint64_t sli_intr, cnt;
 
 	phba = (struct lpfc_hba *)ptr;
 
+	/* Here we will also keep track of interrupts per sec of the hba */
+	sli_intr = phba->sli.slistat.sli_intr;
+
+	if (phba->sli.slistat.sli_prev_intr > sli_intr)
+		cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
+			sli_intr);
+	else
+		cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
+
+	/* 64-bit integer division not supporte on 32-bit x86 - use do_div */
+	rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
+	phba->sli.slistat.sli_ips = cnt;
+
+	phba->sli.slistat.sli_prev_intr = sli_intr;
+
 	/* Check chip HA register for error event */
 	eratt = lpfc_sli_check_eratt(phba);
 
@@ -2873,7 +2921,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
 	 * The next available response entry should never exceed the maximum
 	 * entries.  If it does, treat it as an adapter hardware error.
 	 */
-	portRspMax = pring->numRiocb;
+	portRspMax = pring->sli.sli3.numRiocb;
 	portRspPut = le32_to_cpu(pgp->rspPutInx);
 	if (unlikely(portRspPut >= portRspMax)) {
 		lpfc_sli_rsp_pointers_error(phba, pring);
@@ -2887,7 +2935,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
 		phba->fcp_ring_in_use = 1;
 
 	rmb();
-	while (pring->rspidx != portRspPut) {
+	while (pring->sli.sli3.rspidx != portRspPut) {
 		/*
 		 * Fetch an entry off the ring and copy it into a local data
 		 * structure.  The copy involves a byte-swap since the
@@ -2896,8 +2944,8 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
 		entry = lpfc_resp_iocb(phba, pring);
 		phba->last_completion_time = jiffies;
 
-		if (++pring->rspidx >= portRspMax)
-			pring->rspidx = 0;
+		if (++pring->sli.sli3.rspidx >= portRspMax)
+			pring->sli.sli3.rspidx = 0;
 
 		lpfc_sli_pcimem_bcopy((uint32_t *) entry,
 				      (uint32_t *) &rspiocbq.iocb,
@@ -2915,7 +2963,8 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
 			 * queuedepths of the SCSI device.
 			 */
 			if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
-				(irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
+			    ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+			     IOERR_NO_RESOURCES)) {
 				spin_unlock_irqrestore(&phba->hbalock, iflag);
 				phba->lpfc_rampdown_queue_depth(phba);
 				spin_lock_irqsave(&phba->hbalock, iflag);
@@ -2998,9 +3047,10 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
 		 * been updated, sync the pgp->rspPutInx and fetch the new port
 		 * response put pointer.
 		 */
-		writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
+		writel(pring->sli.sli3.rspidx,
+			&phba->host_gp[pring->ringno].rspGetInx);
 
-		if (pring->rspidx == portRspPut)
+		if (pring->sli.sli3.rspidx == portRspPut)
 			portRspPut = le32_to_cpu(pgp->rspPutInx);
 	}
 
@@ -3015,7 +3065,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
 		pring->stats.iocb_cmd_empty++;
 
 		/* Force update of the local copy of cmdGetInx */
-		pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+		pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
 		lpfc_sli_resume_iocb(phba, pring);
 
 		if ((pring->lpfc_sli_cmd_available))
@@ -3086,7 +3136,8 @@ lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 		 * queuedepths of the SCSI device.
 		 */
 		if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
-		    (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
+		    ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+		     IOERR_NO_RESOURCES)) {
 			spin_unlock_irqrestore(&phba->hbalock, iflag);
 			phba->lpfc_rampdown_queue_depth(phba);
 			spin_lock_irqsave(&phba->hbalock, iflag);
@@ -3247,7 +3298,7 @@ lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
 	 * The next available response entry should never exceed the maximum
 	 * entries.  If it does, treat it as an adapter hardware error.
 	 */
-	portRspMax = pring->numRiocb;
+	portRspMax = pring->sli.sli3.numRiocb;
 	portRspPut = le32_to_cpu(pgp->rspPutInx);
 	if (portRspPut >= portRspMax) {
 		/*
@@ -3269,7 +3320,7 @@ lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
 	}
 
 	rmb();
-	while (pring->rspidx != portRspPut) {
+	while (pring->sli.sli3.rspidx != portRspPut) {
 		/*
 		 * Build a completion list and call the appropriate handler.
 		 * The process is to get the next available response iocb, get
@@ -3297,8 +3348,8 @@ lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
 				      phba->iocb_rsp_size);
 		irsp = &rspiocbp->iocb;
 
-		if (++pring->rspidx >= portRspMax)
-			pring->rspidx = 0;
+		if (++pring->sli.sli3.rspidx >= portRspMax)
+			pring->sli.sli3.rspidx = 0;
 
 		if (pring->ringno == LPFC_ELS_RING) {
 			lpfc_debugfs_slow_ring_trc(phba,
@@ -3308,7 +3359,8 @@ lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
 				*(((uint32_t *) irsp) + 7));
 		}
 
-		writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
+		writel(pring->sli.sli3.rspidx,
+			&phba->host_gp[pring->ringno].rspGetInx);
 
 		spin_unlock_irqrestore(&phba->hbalock, iflag);
 		/* Handle the response IOCB */
@@ -3320,10 +3372,10 @@ lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
 		 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
 		 * response put pointer.
 		 */
-		if (pring->rspidx == portRspPut) {
+		if (pring->sli.sli3.rspidx == portRspPut) {
 			portRspPut = le32_to_cpu(pgp->rspPutInx);
 		}
-	} /* while (pring->rspidx != portRspPut) */
+	} /* while (pring->sli.sli3.rspidx != portRspPut) */
 
 	if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
 		/* At least one response entry has been freed */
@@ -3338,7 +3390,7 @@ lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
 		pring->stats.iocb_cmd_empty++;
 
 		/* Force update of the local copy of cmdGetInx */
-		pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+		pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
 		lpfc_sli_resume_iocb(phba, pring);
 
 		if ((pring->lpfc_sli_cmd_available))
@@ -3859,10 +3911,10 @@ lpfc_sli_brdreset(struct lpfc_hba *phba)
 	for (i = 0; i < psli->num_rings; i++) {
 		pring = &psli->ring[i];
 		pring->flag = 0;
-		pring->rspidx = 0;
-		pring->next_cmdidx  = 0;
-		pring->local_getidx = 0;
-		pring->cmdidx = 0;
+		pring->sli.sli3.rspidx = 0;
+		pring->sli.sli3.next_cmdidx  = 0;
+		pring->sli.sli3.local_getidx = 0;
+		pring->sli.sli3.cmdidx = 0;
 		pring->missbufcnt = 0;
 	}
 
@@ -4739,7 +4791,7 @@ lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
  * is attached to.
  *
  * Return codes
- *      0 - sucessful
+ *      0 - successful
  *      otherwise - failed to retrieve physical port name
  **/
 static int
@@ -4893,16 +4945,15 @@ lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
 	lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
 	fcp_eqidx = 0;
 	if (phba->sli4_hba.fcp_cq) {
-		do
+		do {
 			lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
 					     LPFC_QUEUE_REARM);
-		while (++fcp_eqidx < phba->cfg_fcp_eq_count);
+		} while (++fcp_eqidx < phba->cfg_fcp_io_channel);
 	}
-	lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
-	if (phba->sli4_hba.fp_eq) {
-		for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
+	if (phba->sli4_hba.hba_eq) {
+		for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
 		     fcp_eqidx++)
-			lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
+			lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
 					     LPFC_QUEUE_REARM);
 	}
 }
@@ -7784,14 +7835,18 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
  *
  * Return: index into SLI4 fast-path FCP queue index.
  **/
-static uint32_t
+static inline uint32_t
 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
 {
-	++phba->fcp_qidx;
-	if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
-		phba->fcp_qidx = 0;
+	int i;
+
+	if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU)
+		i = smp_processor_id();
+	else
+		i = atomic_add_return(1, &phba->fcp_qidx);
 
-	return phba->fcp_qidx;
+	i = (i % phba->cfg_fcp_io_channel);
+	return i;
 }
 
 /**
@@ -8311,16 +8366,6 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
 
 	if ((piocb->iocb_flag & LPFC_IO_FCP) ||
 		(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
-		/*
-		 * For FCP command IOCB, get a new WQ index to distribute
-		 * WQE across the WQsr. On the other hand, for abort IOCB,
-		 * it carries the same WQ index to the original command
-		 * IOCB.
-		 */
-		if (piocb->iocb_flag & LPFC_IO_FCP)
-			piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
-		if (unlikely(!phba->sli4_hba.fcp_wq))
-			return IOCB_ERROR;
 		if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
 				     &wqe))
 			return IOCB_ERROR;
@@ -8401,13 +8446,68 @@ int
 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
 		    struct lpfc_iocbq *piocb, uint32_t flag)
 {
+	struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
+	struct lpfc_sli_ring *pring;
+	struct lpfc_queue *fpeq;
+	struct lpfc_eqe *eqe;
 	unsigned long iflags;
-	int rc;
+	int rc, idx;
 
-	spin_lock_irqsave(&phba->hbalock, iflags);
-	rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
+	if (phba->sli_rev == LPFC_SLI_REV4) {
+		if (piocb->iocb_flag &  LPFC_IO_FCP) {
+			if (unlikely(!phba->sli4_hba.fcp_wq))
+				return IOCB_ERROR;
+			idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
+			piocb->fcp_wqidx = idx;
+			ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
+
+			pring = &phba->sli.ring[ring_number];
+			spin_lock_irqsave(&pring->ring_lock, iflags);
+			rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
+				flag);
+			spin_unlock_irqrestore(&pring->ring_lock, iflags);
+
+			if (lpfc_fcp_look_ahead) {
+				fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
+
+				if (atomic_dec_and_test(&fcp_eq_hdl->
+					fcp_eq_in_use)) {
 
+					/* Get associated EQ with this index */
+					fpeq = phba->sli4_hba.hba_eq[idx];
+
+					/* Turn off interrupts from this EQ */
+					lpfc_sli4_eq_clr_intr(fpeq);
+
+					/*
+					 * Process all the events on FCP EQ
+					 */
+					while ((eqe = lpfc_sli4_eq_get(fpeq))) {
+						lpfc_sli4_hba_handle_eqe(phba,
+							eqe, idx);
+						fpeq->EQ_processed++;
+					}
+
+					/* Always clear and re-arm the EQ */
+					lpfc_sli4_eq_release(fpeq,
+						LPFC_QUEUE_REARM);
+				}
+				atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
+			}
+		} else {
+			pring = &phba->sli.ring[ring_number];
+			spin_lock_irqsave(&pring->ring_lock, iflags);
+			rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
+				flag);
+			spin_unlock_irqrestore(&pring->ring_lock, iflags);
+
+		}
+	} else {
+		/* For now, SLI2/3 will still use hbalock */
+		spin_lock_irqsave(&phba->hbalock, iflags);
+		rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
+		spin_unlock_irqrestore(&phba->hbalock, iflags);
+	}
 	return rc;
 }
 
@@ -8434,18 +8534,18 @@ lpfc_extra_ring_setup( struct lpfc_hba *phba)
 
 	/* Take some away from the FCP ring */
 	pring = &psli->ring[psli->fcp_ring];
-	pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
-	pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
-	pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
-	pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+	pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+	pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+	pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+	pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
 
 	/* and give them to the extra ring */
 	pring = &psli->ring[psli->extra_ring];
 
-	pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
-	pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
-	pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
-	pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+	pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+	pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+	pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+	pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
 
 	/* Setup default profile for this ring */
 	pring->iotag_max = 4096;
@@ -8457,56 +8557,6 @@ lpfc_extra_ring_setup( struct lpfc_hba *phba)
 	return 0;
 }
 
-/* lpfc_sli_abts_recover_port - Recover a port that failed an ABTS.
- * @vport: pointer to virtual port object.
- * @ndlp: nodelist pointer for the impacted rport.
- *
- * The driver calls this routine in response to a XRI ABORT CQE
- * event from the port.  In this event, the driver is required to
- * recover its login to the rport even though its login may be valid
- * from the driver's perspective.  The failed ABTS notice from the
- * port indicates the rport is not responding.
- */
-static void
-lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
-			   struct lpfc_nodelist *ndlp)
-{
-	struct Scsi_Host *shost;
-	struct lpfc_hba *phba;
-	unsigned long flags = 0;
-
-	shost = lpfc_shost_from_vport(vport);
-	phba = vport->phba;
-	if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
-		lpfc_printf_log(phba, KERN_INFO,
-			LOG_SLI, "3093 No rport recovery needed. "
-			"rport in state 0x%x\n",
-			ndlp->nlp_state);
-		return;
-	}
-	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-			"3094 Start rport recovery on shost id 0x%x "
-			"fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
-			"flags 0x%x\n",
-			shost->host_no, ndlp->nlp_DID,
-			vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
-			ndlp->nlp_flag);
-	/*
-	 * The rport is not responding.  Don't attempt ADISC recovery.
-	 * Remove the FCP-2 flag to force a PLOGI.
-	 */
-	spin_lock_irqsave(shost->host_lock, flags);
-	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
-	spin_unlock_irqrestore(shost->host_lock, flags);
-	lpfc_disc_state_machine(vport, ndlp, NULL,
-				NLP_EVT_DEVICE_RECOVERY);
-	lpfc_cancel_retry_delay_tmo(vport, ndlp);
-	spin_lock_irqsave(shost->host_lock, flags);
-	ndlp->nlp_flag |= NLP_NPR_2B_DISC;
-	spin_unlock_irqrestore(shost->host_lock, flags);
-	lpfc_disc_start(vport);
-}
-
 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
  * @phba: Pointer to HBA context object.
  * @iocbq: Pointer to iocb object.
@@ -8594,7 +8644,7 @@ lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
 	 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
 	 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
 	 */
-	ext_status = axri->parameter & WCQE_PARAM_MASK;
+	ext_status = axri->parameter & IOERR_PARAM_MASK;
 	if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
 	    ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
 		lpfc_sli_abts_recover_port(vport, ndlp);
@@ -8692,7 +8742,9 @@ lpfc_sli_setup(struct lpfc_hba *phba)
 	struct lpfc_sli *psli = &phba->sli;
 	struct lpfc_sli_ring *pring;
 
-	psli->num_rings = MAX_CONFIGURED_RINGS;
+	psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		psli->num_rings += phba->cfg_fcp_io_channel;
 	psli->sli_flag = 0;
 	psli->fcp_ring = LPFC_FCP_RING;
 	psli->next_ring = LPFC_FCP_NEXT_RING;
@@ -8707,16 +8759,20 @@ lpfc_sli_setup(struct lpfc_hba *phba)
 		switch (i) {
 		case LPFC_FCP_RING:	/* ring 0 - FCP */
 			/* numCiocb and numRiocb are used in config_port */
-			pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
-			pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
-			pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
-			pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
-			pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
-			pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
-			pring->sizeCiocb = (phba->sli_rev == 3) ?
+			pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
+			pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
+			pring->sli.sli3.numCiocb +=
+				SLI2_IOCB_CMD_R1XTRA_ENTRIES;
+			pring->sli.sli3.numRiocb +=
+				SLI2_IOCB_RSP_R1XTRA_ENTRIES;
+			pring->sli.sli3.numCiocb +=
+				SLI2_IOCB_CMD_R3XTRA_ENTRIES;
+			pring->sli.sli3.numRiocb +=
+				SLI2_IOCB_RSP_R3XTRA_ENTRIES;
+			pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
 							SLI3_IOCB_CMD_SIZE :
 							SLI2_IOCB_CMD_SIZE;
-			pring->sizeRiocb = (phba->sli_rev == 3) ?
+			pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
 							SLI3_IOCB_RSP_SIZE :
 							SLI2_IOCB_RSP_SIZE;
 			pring->iotag_ctr = 0;
@@ -8727,12 +8783,12 @@ lpfc_sli_setup(struct lpfc_hba *phba)
 			break;
 		case LPFC_EXTRA_RING:	/* ring 1 - EXTRA */
 			/* numCiocb and numRiocb are used in config_port */
-			pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
-			pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
-			pring->sizeCiocb = (phba->sli_rev == 3) ?
+			pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
+			pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
+			pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
 							SLI3_IOCB_CMD_SIZE :
 							SLI2_IOCB_CMD_SIZE;
-			pring->sizeRiocb = (phba->sli_rev == 3) ?
+			pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
 							SLI3_IOCB_RSP_SIZE :
 							SLI2_IOCB_RSP_SIZE;
 			pring->iotag_max = phba->cfg_hba_queue_depth;
@@ -8740,12 +8796,12 @@ lpfc_sli_setup(struct lpfc_hba *phba)
 			break;
 		case LPFC_ELS_RING:	/* ring 2 - ELS / CT */
 			/* numCiocb and numRiocb are used in config_port */
-			pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
-			pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
-			pring->sizeCiocb = (phba->sli_rev == 3) ?
+			pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
+			pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
+			pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
 							SLI3_IOCB_CMD_SIZE :
 							SLI2_IOCB_CMD_SIZE;
-			pring->sizeRiocb = (phba->sli_rev == 3) ?
+			pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
 							SLI3_IOCB_RSP_SIZE :
 							SLI2_IOCB_RSP_SIZE;
 			pring->fast_iotag = 0;
@@ -8786,8 +8842,9 @@ lpfc_sli_setup(struct lpfc_hba *phba)
 			    lpfc_sli4_ct_abort_unsol_event;
 			break;
 		}
-		totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
-				(pring->numRiocb * pring->sizeRiocb);
+		totiocbsize += (pring->sli.sli3.numCiocb *
+			pring->sli.sli3.sizeCiocb) +
+			(pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
 	}
 	if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
 		/* Too many cmd / rsp ring entries in SLI2 SLIM */
@@ -8828,14 +8885,15 @@ lpfc_sli_queue_setup(struct lpfc_hba *phba)
 	for (i = 0; i < psli->num_rings; i++) {
 		pring = &psli->ring[i];
 		pring->ringno = i;
-		pring->next_cmdidx  = 0;
-		pring->local_getidx = 0;
-		pring->cmdidx = 0;
+		pring->sli.sli3.next_cmdidx  = 0;
+		pring->sli.sli3.local_getidx = 0;
+		pring->sli.sli3.cmdidx = 0;
 		INIT_LIST_HEAD(&pring->txq);
 		INIT_LIST_HEAD(&pring->txcmplq);
 		INIT_LIST_HEAD(&pring->iocb_continueq);
 		INIT_LIST_HEAD(&pring->iocb_continue_saveq);
 		INIT_LIST_HEAD(&pring->postbufq);
+		spin_lock_init(&pring->ring_lock);
 	}
 	spin_unlock_irq(&phba->hbalock);
 	return 1;
@@ -9334,6 +9392,7 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	IOCB_t *icmd = NULL;
 	IOCB_t *iabt = NULL;
 	int retval;
+	unsigned long iflags;
 
 	/*
 	 * There are certain command types we don't want to abort.  And we
@@ -9386,7 +9445,17 @@ lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 			 iabt->un.acxri.abortIoTag,
 			 iabt->un.acxri.abortContextTag,
 			 abtsiocbp->iotag);
-	retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
+
+	if (phba->sli_rev == LPFC_SLI_REV4) {
+		/* Note: both hbalock and ring_lock need to be set here */
+		spin_lock_irqsave(&pring->ring_lock, iflags);
+		retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
+			abtsiocbp, 0);
+		spin_unlock_irqrestore(&pring->ring_lock, iflags);
+	} else {
+		retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
+			abtsiocbp, 0);
+	}
 
 	if (retval)
 		__lpfc_sli_release_iocbq(phba, abtsiocbp);
@@ -10947,12 +11016,12 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
 	unsigned long iflags;
 
 	wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
-	spin_lock_irqsave(&phba->hbalock, iflags);
+	spin_lock_irqsave(&pring->ring_lock, iflags);
 	pring->stats.iocb_event++;
 	/* Look up the ELS command IOCB and create pseudo response IOCB */
 	cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
 				bf_get(lpfc_wcqe_c_request_tag, wcqe));
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
+	spin_unlock_irqrestore(&pring->ring_lock, iflags);
 
 	if (unlikely(!cmdiocbq)) {
 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
@@ -11154,6 +11223,7 @@ lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
 /**
  * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
  * @phba: Pointer to HBA context object.
+ * @cq: Pointer to associated CQ
  * @wcqe: Pointer to work-queue completion queue entry.
  *
  * This routine handles an ELS work-queue completion event.
@@ -11161,12 +11231,12 @@ lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
  * Return: true if work posted to worker thread, otherwise false.
  **/
 static bool
-lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
+lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 			     struct lpfc_wcqe_complete *wcqe)
 {
 	struct lpfc_iocbq *irspiocbq;
 	unsigned long iflags;
-	struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
+	struct lpfc_sli_ring *pring = cq->pring;
 
 	/* Get an irspiocbq for later ELS response processing use */
 	irspiocbq = lpfc_sli_get_iocbq(phba);
@@ -11311,14 +11381,17 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
 	case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"2537 Receive Frame Truncated!!\n");
+		hrq->RQ_buf_trunc++;
 	case FC_STATUS_RQ_SUCCESS:
 		lpfc_sli4_rq_release(hrq, drq);
 		spin_lock_irqsave(&phba->hbalock, iflags);
 		dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
 		if (!dma_buf) {
+			hrq->RQ_no_buf_found++;
 			spin_unlock_irqrestore(&phba->hbalock, iflags);
 			goto out;
 		}
+		hrq->RQ_rcv_buf++;
 		memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
 		/* save off the frame for the word thread to process */
 		list_add_tail(&dma_buf->cq_event.list,
@@ -11330,6 +11403,7 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
 		break;
 	case FC_STATUS_INSUFF_BUF_NEED_BUF:
 	case FC_STATUS_INSUFF_BUF_FRM_DISC:
+		hrq->RQ_no_posted_buf++;
 		/* Post more buffers if possible */
 		spin_lock_irqsave(&phba->hbalock, iflags);
 		phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
@@ -11367,7 +11441,7 @@ lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	case CQE_CODE_COMPL_WQE:
 		/* Process the WQ/RQ complete event */
 		phba->last_completion_time = jiffies;
-		workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
+		workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
 				(struct lpfc_wcqe_complete *)&cqevt);
 		break;
 	case CQE_CODE_RELEASE_WQE:
@@ -11411,31 +11485,18 @@ lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
  *
  **/
 static void
-lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
+lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
+	struct lpfc_queue *speq)
 {
-	struct lpfc_queue *cq = NULL, *childq, *speq;
+	struct lpfc_queue *cq = NULL, *childq;
 	struct lpfc_cqe *cqe;
 	bool workposted = false;
 	int ecount = 0;
 	uint16_t cqid;
 
-	if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"0359 Not a valid slow-path completion "
-				"event: majorcode=x%x, minorcode=x%x\n",
-				bf_get_le32(lpfc_eqe_major_code, eqe),
-				bf_get_le32(lpfc_eqe_minor_code, eqe));
-		return;
-	}
-
 	/* Get the reference to the corresponding CQ */
 	cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
 
-	/* Search for completion queue pointer matching this cqid */
-	speq = phba->sli4_hba.sp_eq;
-	/* sanity check on queue memory */
-	if (unlikely(!speq))
-		return;
 	list_for_each_entry(childq, &speq->child_list, list) {
 		if (childq->queue_id == cqid) {
 			cq = childq;
@@ -11457,6 +11518,7 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
 			workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
 			if (!(++ecount % cq->entry_repost))
 				lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
+			cq->CQ_mbox++;
 		}
 		break;
 	case LPFC_WCQ:
@@ -11470,6 +11532,10 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
 			if (!(++ecount % cq->entry_repost))
 				lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
 		}
+
+		/* Track the max number of CQEs processed in 1 EQ */
+		if (ecount > cq->CQ_max_cqe)
+			cq->CQ_max_cqe = ecount;
 		break;
 	default:
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
@@ -11494,34 +11560,33 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
 
 /**
  * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
- * @eqe: Pointer to fast-path completion queue entry.
+ * @phba: Pointer to HBA context object.
+ * @cq: Pointer to associated CQ
+ * @wcqe: Pointer to work-queue completion queue entry.
  *
  * This routine process a fast-path work queue completion entry from fast-path
  * event queue for FCP command response completion.
  **/
 static void
-lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
+lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 			     struct lpfc_wcqe_complete *wcqe)
 {
-	struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
+	struct lpfc_sli_ring *pring = cq->pring;
 	struct lpfc_iocbq *cmdiocbq;
 	struct lpfc_iocbq irspiocbq;
 	unsigned long iflags;
 
-	spin_lock_irqsave(&phba->hbalock, iflags);
-	pring->stats.iocb_event++;
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
-
 	/* Check for response status */
 	if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
 		/* If resource errors reported from HBA, reduce queue
 		 * depth of the SCSI device.
 		 */
-		if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
-		     IOSTAT_LOCAL_REJECT) &&
-		    (wcqe->parameter == IOERR_NO_RESOURCES)) {
+		if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
+		     IOSTAT_LOCAL_REJECT)) &&
+		    ((wcqe->parameter & IOERR_PARAM_MASK) ==
+		     IOERR_NO_RESOURCES))
 			phba->lpfc_rampdown_queue_depth(phba);
-		}
+
 		/* Log the error status */
 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
 				"0373 FCP complete error: status=x%x, "
@@ -11534,10 +11599,11 @@ lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
 	}
 
 	/* Look up the FCP command IOCB and create pseudo response IOCB */
-	spin_lock_irqsave(&phba->hbalock, iflags);
+	spin_lock_irqsave(&pring->ring_lock, iflags);
+	pring->stats.iocb_event++;
 	cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
 				bf_get(lpfc_wcqe_c_request_tag, wcqe));
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
+	spin_unlock_irqrestore(&pring->ring_lock, iflags);
 	if (unlikely(!cmdiocbq)) {
 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
 				"0374 FCP complete with no corresponding "
@@ -11621,17 +11687,20 @@ lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	/* Check and process for different type of WCQE and dispatch */
 	switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
 	case CQE_CODE_COMPL_WQE:
+		cq->CQ_wq++;
 		/* Process the WQ complete event */
 		phba->last_completion_time = jiffies;
-		lpfc_sli4_fp_handle_fcp_wcqe(phba,
+		lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
 				(struct lpfc_wcqe_complete *)&wcqe);
 		break;
 	case CQE_CODE_RELEASE_WQE:
+		cq->CQ_release_wqe++;
 		/* Process the WQ release event */
 		lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
 				(struct lpfc_wcqe_release *)&wcqe);
 		break;
 	case CQE_CODE_XRI_ABORTED:
+		cq->CQ_xri_aborted++;
 		/* Process the WQ XRI abort event */
 		phba->last_completion_time = jiffies;
 		workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
@@ -11647,7 +11716,7 @@ lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 }
 
 /**
- * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
+ * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
  * @phba: Pointer to HBA context object.
  * @eqe: Pointer to fast-path event queue entry.
  *
@@ -11659,8 +11728,8 @@ lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
  * completion queue, and then return.
  **/
 static void
-lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
-			uint32_t fcp_cqidx)
+lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
+			uint32_t qidx)
 {
 	struct lpfc_queue *cq;
 	struct lpfc_cqe *cqe;
@@ -11670,30 +11739,38 @@ lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
 
 	if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"0366 Not a valid fast-path completion "
+				"0366 Not a valid completion "
 				"event: majorcode=x%x, minorcode=x%x\n",
 				bf_get_le32(lpfc_eqe_major_code, eqe),
 				bf_get_le32(lpfc_eqe_minor_code, eqe));
 		return;
 	}
 
+	/* Get the reference to the corresponding CQ */
+	cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
+
+	/* Check if this is a Slow path event */
+	if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
+		lpfc_sli4_sp_handle_eqe(phba, eqe,
+			phba->sli4_hba.hba_eq[qidx]);
+		return;
+	}
+
 	if (unlikely(!phba->sli4_hba.fcp_cq)) {
 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
 				"3146 Fast-path completion queues "
 				"does not exist\n");
 		return;
 	}
-	cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
+	cq = phba->sli4_hba.fcp_cq[qidx];
 	if (unlikely(!cq)) {
 		if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 					"0367 Fast-path completion queue "
-					"(%d) does not exist\n", fcp_cqidx);
+					"(%d) does not exist\n", qidx);
 		return;
 	}
 
-	/* Get the reference to the corresponding CQ */
-	cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
 	if (unlikely(cqid != cq->queue_id)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"0368 Miss-matched fast-path completion "
@@ -11709,6 +11786,10 @@ lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
 			lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
 	}
 
+	/* Track the max number of CQEs processed in 1 EQ */
+	if (ecount > cq->CQ_max_cqe)
+		cq->CQ_max_cqe = ecount;
+
 	/* Catch the no cq entry condition */
 	if (unlikely(ecount == 0))
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
@@ -11737,86 +11818,7 @@ lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
 }
 
 /**
- * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
- * @irq: Interrupt number.
- * @dev_id: The device context pointer.
- *
- * This function is directly called from the PCI layer as an interrupt
- * service routine when device with SLI-4 interface spec is enabled with
- * MSI-X multi-message interrupt mode and there are slow-path events in
- * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
- * interrupt mode, this function is called as part of the device-level
- * interrupt handler. When the PCI slot is in error recovery or the HBA is
- * undergoing initialization, the interrupt handler will not process the
- * interrupt. The link attention and ELS ring attention events are handled
- * by the worker thread. The interrupt handler signals the worker thread
- * and returns for these events. This function is called without any lock
- * held. It gets the hbalock to access and update SLI data structures.
- *
- * This function returns IRQ_HANDLED when interrupt is handled else it
- * returns IRQ_NONE.
- **/
-irqreturn_t
-lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
-{
-	struct lpfc_hba *phba;
-	struct lpfc_queue *speq;
-	struct lpfc_eqe *eqe;
-	unsigned long iflag;
-	int ecount = 0;
-
-	/*
-	 * Get the driver's phba structure from the dev_id
-	 */
-	phba = (struct lpfc_hba *)dev_id;
-
-	if (unlikely(!phba))
-		return IRQ_NONE;
-
-	/* Get to the EQ struct associated with this vector */
-	speq = phba->sli4_hba.sp_eq;
-	if (unlikely(!speq))
-		return IRQ_NONE;
-
-	/* Check device state for handling interrupt */
-	if (unlikely(lpfc_intr_state_check(phba))) {
-		/* Check again for link_state with lock held */
-		spin_lock_irqsave(&phba->hbalock, iflag);
-		if (phba->link_state < LPFC_LINK_DOWN)
-			/* Flush, clear interrupt, and rearm the EQ */
-			lpfc_sli4_eq_flush(phba, speq);
-		spin_unlock_irqrestore(&phba->hbalock, iflag);
-		return IRQ_NONE;
-	}
-
-	/*
-	 * Process all the event on FCP slow-path EQ
-	 */
-	while ((eqe = lpfc_sli4_eq_get(speq))) {
-		lpfc_sli4_sp_handle_eqe(phba, eqe);
-		if (!(++ecount % speq->entry_repost))
-			lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
-	}
-
-	/* Always clear and re-arm the slow-path EQ */
-	lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
-
-	/* Catch the no cq entry condition */
-	if (unlikely(ecount == 0)) {
-		if (phba->intr_type == MSIX)
-			/* MSI-X treated interrupt served as no EQ share INT */
-			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
-					"0357 MSI-X interrupt with no EQE\n");
-		else
-			/* Non MSI-X treated on interrupt as EQ share INT */
-			return IRQ_NONE;
-	}
-
-	return IRQ_HANDLED;
-} /* lpfc_sli4_sp_intr_handler */
-
-/**
- * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
+ * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
  * @irq: Interrupt number.
  * @dev_id: The device context pointer.
  *
@@ -11833,11 +11835,16 @@ lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
  * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
  * equal to that of FCP CQ index.
  *
+ * The link attention and ELS ring attention events are handled
+ * by the worker thread. The interrupt handler signals the worker thread
+ * and returns for these events. This function is called without any lock
+ * held. It gets the hbalock to access and update SLI data structures.
+ *
  * This function returns IRQ_HANDLED when interrupt is handled else it
  * returns IRQ_NONE.
  **/
 irqreturn_t
-lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
+lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
 {
 	struct lpfc_hba *phba;
 	struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
@@ -11854,22 +11861,34 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
 
 	if (unlikely(!phba))
 		return IRQ_NONE;
-	if (unlikely(!phba->sli4_hba.fp_eq))
+	if (unlikely(!phba->sli4_hba.hba_eq))
 		return IRQ_NONE;
 
 	/* Get to the EQ struct associated with this vector */
-	fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
+	fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
 	if (unlikely(!fpeq))
 		return IRQ_NONE;
 
+	if (lpfc_fcp_look_ahead) {
+		if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
+			lpfc_sli4_eq_clr_intr(fpeq);
+		else {
+			atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
+			return IRQ_NONE;
+		}
+	}
+
 	/* Check device state for handling interrupt */
 	if (unlikely(lpfc_intr_state_check(phba))) {
+		fpeq->EQ_badstate++;
 		/* Check again for link_state with lock held */
 		spin_lock_irqsave(&phba->hbalock, iflag);
 		if (phba->link_state < LPFC_LINK_DOWN)
 			/* Flush, clear interrupt, and rearm the EQ */
 			lpfc_sli4_eq_flush(phba, fpeq);
 		spin_unlock_irqrestore(&phba->hbalock, iflag);
+		if (lpfc_fcp_look_ahead)
+			atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
 		return IRQ_NONE;
 	}
 
@@ -11877,15 +11896,27 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
 	 * Process all the event on FCP fast-path EQ
 	 */
 	while ((eqe = lpfc_sli4_eq_get(fpeq))) {
-		lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
+		lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
 		if (!(++ecount % fpeq->entry_repost))
 			lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
+		fpeq->EQ_processed++;
 	}
 
+	/* Track the max number of EQEs processed in 1 intr */
+	if (ecount > fpeq->EQ_max_eqe)
+		fpeq->EQ_max_eqe = ecount;
+
 	/* Always clear and re-arm the fast-path EQ */
 	lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
 
 	if (unlikely(ecount == 0)) {
+		fpeq->EQ_no_entry++;
+
+		if (lpfc_fcp_look_ahead) {
+			atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
+			return IRQ_NONE;
+		}
+
 		if (phba->intr_type == MSIX)
 			/* MSI-X treated interrupt served as no EQ share INT */
 			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
@@ -11895,6 +11926,8 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
 			return IRQ_NONE;
 	}
 
+	if (lpfc_fcp_look_ahead)
+		atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
 	return IRQ_HANDLED;
 } /* lpfc_sli4_fp_intr_handler */
 
@@ -11919,8 +11952,8 @@ irqreturn_t
 lpfc_sli4_intr_handler(int irq, void *dev_id)
 {
 	struct lpfc_hba  *phba;
-	irqreturn_t sp_irq_rc, fp_irq_rc;
-	bool fp_handled = false;
+	irqreturn_t hba_irq_rc;
+	bool hba_handled = false;
 	uint32_t fcp_eqidx;
 
 	/* Get the driver's phba structure from the dev_id */
@@ -11930,21 +11963,16 @@ lpfc_sli4_intr_handler(int irq, void *dev_id)
 		return IRQ_NONE;
 
 	/*
-	 * Invokes slow-path host attention interrupt handling as appropriate.
-	 */
-	sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
-
-	/*
 	 * Invoke fast-path host attention interrupt handling as appropriate.
 	 */
-	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
-		fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
+	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
+		hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
 					&phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
-		if (fp_irq_rc == IRQ_HANDLED)
-			fp_handled |= true;
+		if (hba_irq_rc == IRQ_HANDLED)
+			hba_handled |= true;
 	}
 
-	return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
+	return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
 } /* lpfc_sli4_intr_handler */
 
 /**
@@ -12075,7 +12103,7 @@ lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
 	union lpfc_sli4_cfg_shdr *shdr;
 	uint16_t dmult;
 
-	if (startq >= phba->cfg_fcp_eq_count)
+	if (startq >= phba->cfg_fcp_io_channel)
 		return 0;
 
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@@ -12089,12 +12117,13 @@ lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
 	eq_delay = &mbox->u.mqe.un.eq_delay;
 
 	/* Calculate delay multiper from maximum interrupt per second */
-	dmult = LPFC_DMULT_CONST/phba->cfg_fcp_imax - 1;
+	dmult = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
+	dmult = LPFC_DMULT_CONST/dmult - 1;
 
 	cnt = 0;
-	for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_eq_count;
+	for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
 	    fcp_eqidx++) {
-		eq = phba->sli4_hba.fp_eq[fcp_eqidx];
+		eq = phba->sli4_hba.hba_eq[fcp_eqidx];
 		if (!eq)
 			continue;
 		eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
@@ -15209,7 +15238,7 @@ lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
 	/*
 	 * if next_fcf_pri was not set above and the list is not empty then
 	 * we have failed flogis on all of them. So reset flogi failed
-	 * and start at the begining.
+	 * and start at the beginning.
 	 */
 	if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
 		list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
index 2626f58c074..2f48d000a3b 100644
--- a/drivers/scsi/lpfc/lpfc_sli.h
+++ b/drivers/scsi/lpfc/lpfc_sli.h
@@ -131,7 +131,9 @@ typedef struct lpfcMboxq {
 
 #define LPFC_MAX_RING_MASK  5	/* max num of rctl/type masks allowed per
 				   ring */
-#define LPFC_MAX_RING       4	/* max num of SLI rings used by driver */
+#define LPFC_SLI3_MAX_RING  4	/* Max num of SLI3 rings used by driver.
+				   For SLI4, an additional ring for each
+				   FCP WQ will be allocated.  */
 
 struct lpfc_sli_ring;
 
@@ -158,6 +160,24 @@ struct lpfc_sli_ring_stat {
 	uint64_t iocb_rsp_full;	 /* IOCB rsp ring full */
 };
 
+struct lpfc_sli3_ring {
+	uint32_t local_getidx;  /* last available cmd index (from cmdGetInx) */
+	uint32_t next_cmdidx;   /* next_cmd index */
+	uint32_t rspidx;	/* current index in response ring */
+	uint32_t cmdidx;	/* current index in command ring */
+	uint16_t numCiocb;	/* number of command iocb's per ring */
+	uint16_t numRiocb;	/* number of rsp iocb's per ring */
+	uint16_t sizeCiocb;	/* Size of command iocb's in this ring */
+	uint16_t sizeRiocb;	/* Size of response iocb's in this ring */
+	uint32_t *cmdringaddr;	/* virtual address for cmd rings */
+	uint32_t *rspringaddr;	/* virtual address for rsp rings */
+};
+
+struct lpfc_sli4_ring {
+	struct lpfc_queue *wqp;	/* Pointer to associated WQ */
+};
+
+
 /* Structure used to hold SLI ring information */
 struct lpfc_sli_ring {
 	uint16_t flag;		/* ring flags */
@@ -166,16 +186,10 @@ struct lpfc_sli_ring {
 #define LPFC_STOP_IOCB_EVENT     0x020	/* Stop processing IOCB cmds event */
 	uint16_t abtsiotag;	/* tracks next iotag to use for ABTS */
 
-	uint32_t local_getidx;   /* last available cmd index (from cmdGetInx) */
-	uint32_t next_cmdidx;    /* next_cmd index */
-	uint32_t rspidx;	/* current index in response ring */
-	uint32_t cmdidx;	/* current index in command ring */
 	uint8_t rsvd;
 	uint8_t ringno;		/* ring number */
-	uint16_t numCiocb;	/* number of command iocb's per ring */
-	uint16_t numRiocb;	/* number of rsp iocb's per ring */
-	uint16_t sizeCiocb;	/* Size of command iocb's in this ring */
-	uint16_t sizeRiocb;	/* Size of response iocb's in this ring */
+
+	spinlock_t ring_lock;	/* lock for issuing commands */
 
 	uint32_t fast_iotag;	/* max fastlookup based iotag           */
 	uint32_t iotag_ctr;	/* keeps track of the next iotag to use */
@@ -186,8 +200,6 @@ struct lpfc_sli_ring {
 	struct list_head txcmplq;
 	uint16_t txcmplq_cnt;	/* current length of queue */
 	uint16_t txcmplq_max;	/* max length */
-	uint32_t *cmdringaddr;	/* virtual address for cmd rings */
-	uint32_t *rspringaddr;	/* virtual address for rsp rings */
 	uint32_t missbufcnt;	/* keep track of buffers to post */
 	struct list_head postbufq;
 	uint16_t postbufq_cnt;	/* current length of queue */
@@ -207,6 +219,10 @@ struct lpfc_sli_ring {
 	/* cmd ring available */
 	void (*lpfc_sli_cmd_available) (struct lpfc_hba *,
 					struct lpfc_sli_ring *);
+	union {
+		struct lpfc_sli3_ring sli3;
+		struct lpfc_sli4_ring sli4;
+	} sli;
 };
 
 /* Structure used for configuring rings to a specific profile or rctl / type */
@@ -239,6 +255,8 @@ struct lpfc_sli_stat {
 	uint64_t mbox_stat_err;  /* Mbox cmds completed status error */
 	uint64_t mbox_cmd;       /* Mailbox commands issued */
 	uint64_t sli_intr;       /* Count of Host Attention interrupts */
+	uint64_t sli_prev_intr;  /* Previous cnt of Host Attention interrupts */
+	uint64_t sli_ips;        /* Host Attention interrupts per sec */
 	uint32_t err_attn_event; /* Error Attn event counters */
 	uint32_t link_event;     /* Link event counters */
 	uint32_t mbox_event;     /* Mailbox event counters */
@@ -270,7 +288,7 @@ struct lpfc_sli {
 #define LPFC_MENLO_MAINT          0x1000 /* need for menl fw download */
 #define LPFC_SLI_ASYNC_MBX_BLK    0x2000 /* Async mailbox is blocked */
 
-	struct lpfc_sli_ring ring[LPFC_MAX_RING];
+	struct lpfc_sli_ring *ring;
 	int fcp_ring;		/* ring used for FCP initiator commands */
 	int next_ring;
 
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index ec756118c5c..bd4bc4342ae 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -34,18 +34,10 @@
 /* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
 #define LPFC_NEMBED_MBOX_SGL_CNT		254
 
-/* Multi-queue arrangement for fast-path FCP work queues */
-#define LPFC_FN_EQN_MAX       8
-#define LPFC_SP_EQN_DEF       1
-#define LPFC_FP_EQN_DEF       4
-#define LPFC_FP_EQN_MIN       1
-#define LPFC_FP_EQN_MAX       (LPFC_FN_EQN_MAX - LPFC_SP_EQN_DEF)
-
-#define LPFC_FN_WQN_MAX       32
-#define LPFC_SP_WQN_DEF       1
-#define LPFC_FP_WQN_DEF       4
-#define LPFC_FP_WQN_MIN       1
-#define LPFC_FP_WQN_MAX       (LPFC_FN_WQN_MAX - LPFC_SP_WQN_DEF)
+/* Multi-queue arrangement for FCP EQ/CQ/WQ tuples */
+#define LPFC_FCP_IO_CHAN_DEF       4
+#define LPFC_FCP_IO_CHAN_MIN       1
+#define LPFC_FCP_IO_CHAN_MAX       8
 
 /*
  * Provide the default FCF Record attributes used by the driver
@@ -141,6 +133,37 @@ struct lpfc_queue {
 	uint32_t page_count;	/* Number of pages allocated for this queue */
 	uint32_t host_index;	/* The host's index for putting or getting */
 	uint32_t hba_index;	/* The last known hba index for get or put */
+
+	struct lpfc_sli_ring *pring; /* ptr to io ring associated with q */
+
+	/* For q stats */
+	uint32_t q_cnt_1;
+	uint32_t q_cnt_2;
+	uint32_t q_cnt_3;
+	uint64_t q_cnt_4;
+/* defines for EQ stats */
+#define	EQ_max_eqe		q_cnt_1
+#define	EQ_no_entry		q_cnt_2
+#define	EQ_badstate		q_cnt_3
+#define	EQ_processed		q_cnt_4
+
+/* defines for CQ stats */
+#define	CQ_mbox			q_cnt_1
+#define	CQ_max_cqe		q_cnt_1
+#define	CQ_release_wqe		q_cnt_2
+#define	CQ_xri_aborted		q_cnt_3
+#define	CQ_wq			q_cnt_4
+
+/* defines for WQ stats */
+#define	WQ_overflow		q_cnt_1
+#define	WQ_posted		q_cnt_4
+
+/* defines for RQ stats */
+#define	RQ_no_posted_buf	q_cnt_1
+#define	RQ_no_buf_found		q_cnt_2
+#define	RQ_buf_trunc		q_cnt_3
+#define	RQ_rcv_buf		q_cnt_4
+
 	union sli4_qe qe[1];	/* array to index entries (must be last) */
 };
 
@@ -350,6 +373,7 @@ struct lpfc_hba;
 struct lpfc_fcp_eq_hdl {
 	uint32_t idx;
 	struct lpfc_hba *phba;
+	atomic_t fcp_eq_in_use;
 };
 
 /* Port Capabilities for SLI4 Parameters */
@@ -407,6 +431,8 @@ struct lpfc_sli4_lnk_info {
 	uint8_t lnk_no;
 };
 
+#define LPFC_SLI4_HANDLER_NAME_SZ	16
+
 /* SLI4 HBA data structure entries */
 struct lpfc_sli4_hba {
 	void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
@@ -463,20 +489,23 @@ struct lpfc_sli4_hba {
 	struct lpfc_register sli_intf;
 	struct lpfc_pc_sli4_params pc_sli4_params;
 	struct msix_entry *msix_entries;
+	uint8_t handler_name[LPFC_FCP_IO_CHAN_MAX][LPFC_SLI4_HANDLER_NAME_SZ];
 	uint32_t cfg_eqn;
 	uint32_t msix_vec_nr;
 	struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
+
 	/* Pointers to the constructed SLI4 queues */
-	struct lpfc_queue **fp_eq; /* Fast-path event queue */
-	struct lpfc_queue *sp_eq;  /* Slow-path event queue */
+	struct lpfc_queue **hba_eq;/* Event queues for HBA */
+	struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
 	struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
+	uint16_t *fcp_cq_map;
+
+	struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
+	struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
 	struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
 	struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
 	struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
 	struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
-	struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
-	struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
-	struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
 
 	/* Setup information for various queue parameters */
 	int eq_esize;
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 4704e5b5088..04265a1c4e5 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,11 +18,16 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.3.32"
+#define LPFC_DRIVER_VERSION "8.3.34"
 #define LPFC_DRIVER_NAME		"lpfc"
+
+/* Used for SLI 2/3 */
 #define LPFC_SP_DRIVER_HANDLER_NAME	"lpfc:sp"
 #define LPFC_FP_DRIVER_HANDLER_NAME	"lpfc:fp"
 
+/* Used for SLI4 */
+#define LPFC_DRIVER_HANDLER_NAME	"lpfc:"
+
 #define LPFC_MODULE_DESC "Emulex LightPulse Fibre Channel SCSI driver " \
 		LPFC_DRIVER_VERSION
 #define LPFC_COPYRIGHT "Copyright(c) 2004-2009 Emulex.  All rights reserved."
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 97825f11695..76ad72d32c3 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -305,12 +305,11 @@ mega_query_adapter(adapter_t *adapter)
 
 	adapter->host->sg_tablesize = adapter->sglen;
 
-
 	/* use HP firmware and bios version encoding
 	   Note: fw_version[0|1] and bios_version[0|1] were originally shifted
 	   right 8 bits making them zero. This 0 value was hardcoded to fix
 	   sparse warnings. */
-	if (adapter->product_info.subsysvid == HP_SUBSYS_VID) {
+	if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) {
 		sprintf (adapter->fw_version, "%c%d%d.%d%d",
 			 adapter->product_info.fw_version[2],
 			 0,
@@ -4716,7 +4715,7 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	 * support, since this firmware cannot handle 64 bit
 	 * addressing
 	 */
-	if ((subsysvid == HP_SUBSYS_VID) &&
+	if ((subsysvid == PCI_VENDOR_ID_HP) &&
 	    ((subsysid == 0x60E7) || (subsysid == 0x60E8))) {
 		/*
 		 * which firmware
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
index 9a7897f8ca4..4fb2adf6b80 100644
--- a/drivers/scsi/megaraid.h
+++ b/drivers/scsi/megaraid.h
@@ -45,45 +45,10 @@
 
 #define MAX_DEV_TYPE	32
 
-#ifndef PCI_VENDOR_ID_LSI_LOGIC
-#define PCI_VENDOR_ID_LSI_LOGIC		0x1000
-#endif
-
-#ifndef PCI_VENDOR_ID_AMI
-#define PCI_VENDOR_ID_AMI		0x101E
-#endif
-
-#ifndef PCI_VENDOR_ID_DELL
-#define PCI_VENDOR_ID_DELL		0x1028
-#endif
-
-#ifndef PCI_VENDOR_ID_INTEL
-#define PCI_VENDOR_ID_INTEL		0x8086
-#endif
-
-#ifndef PCI_DEVICE_ID_AMI_MEGARAID
-#define PCI_DEVICE_ID_AMI_MEGARAID	0x9010
-#endif
-
-#ifndef PCI_DEVICE_ID_AMI_MEGARAID2
-#define PCI_DEVICE_ID_AMI_MEGARAID2	0x9060
-#endif
-
-#ifndef PCI_DEVICE_ID_AMI_MEGARAID3
-#define PCI_DEVICE_ID_AMI_MEGARAID3	0x1960
-#endif
-
 #define PCI_DEVICE_ID_DISCOVERY		0x000E
 #define PCI_DEVICE_ID_PERC4_DI		0x000F
 #define PCI_DEVICE_ID_PERC4_QC_VERDE	0x0407
 
-/* Sub-System Vendor IDs */
-#define	AMI_SUBSYS_VID			0x101E
-#define DELL_SUBSYS_VID			0x1028
-#define	HP_SUBSYS_VID			0x103C
-#define LSI_SUBSYS_VID			0x1000
-#define INTEL_SUBSYS_VID		0x8086
-
 #define HBA_SIGNATURE	      		0x3344
 #define HBA_SIGNATURE_471	  	0xCCCC
 #define HBA_SIGNATURE_64BIT		0x0299
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index e8f89264768..fcb005fa4bd 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -33,9 +33,9 @@
 /*
  * MegaRAID SAS Driver meta data
  */
-#define MEGASAS_VERSION				"00.00.06.15-rc1"
-#define MEGASAS_RELDATE				"Mar. 19, 2012"
-#define MEGASAS_EXT_VERSION			"Mon. Mar. 19 17:00:00 PDT 2012"
+#define MEGASAS_VERSION				"00.00.06.18-rc1"
+#define MEGASAS_RELDATE				"Jun. 17, 2012"
+#define MEGASAS_EXT_VERSION			"Tue. Jun. 17 17:00:00 PDT 2012"
 
 /*
  * Device IDs
@@ -747,6 +747,7 @@ struct megasas_ctrl_info {
 #define	MEGASAS_RESET_NOTICE_INTERVAL		5
 #define MEGASAS_IOCTL_CMD			0
 #define MEGASAS_DEFAULT_CMD_TIMEOUT		90
+#define MEGASAS_THROTTLE_QUEUE_DEPTH		16
 
 /*
  * FW reports the maximum of number of commands that it can accept (maximum
@@ -1364,6 +1365,7 @@ struct megasas_instance {
 	unsigned long bar;
 	long reset_flags;
 	struct mutex reset_mutex;
+	int throttlequeuedepth;
 };
 
 enum {
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index dc27598785e..0393ec478cd 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -18,7 +18,7 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  *  FILE: megaraid_sas_base.c
- *  Version : v00.00.06.15-rc1
+ *  Version : v00.00.06.18-rc1
  *
  *  Authors: LSI Corporation
  *           Sreenivas Bagalkote
@@ -71,6 +71,16 @@ static int msix_disable;
 module_param(msix_disable, int, S_IRUGO);
 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
 
+static int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
+module_param(throttlequeuedepth, int, S_IRUGO);
+MODULE_PARM_DESC(throttlequeuedepth,
+	"Adapter queue depth when throttled due to I/O timeout. Default: 16");
+
+int resetwaittime = MEGASAS_RESET_WAIT_TIME;
+module_param(resetwaittime, int, S_IRUGO);
+MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout "
+		 "before resetting adapter. Default: 180");
+
 MODULE_LICENSE("GPL");
 MODULE_VERSION(MEGASAS_VERSION);
 MODULE_AUTHOR("megaraidlinux@lsi.com");
@@ -1595,8 +1605,9 @@ megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
 {
 	unsigned long flags;
 	if (instance->flag & MEGASAS_FW_BUSY
-		&& time_after(jiffies, instance->last_time + 5 * HZ)
-		&& atomic_read(&instance->fw_outstanding) < 17) {
+	    && time_after(jiffies, instance->last_time + 5 * HZ)
+	    && atomic_read(&instance->fw_outstanding) <
+	    instance->throttlequeuedepth + 1) {
 
 		spin_lock_irqsave(instance->host->host_lock, flags);
 		instance->flag &= ~MEGASAS_FW_BUSY;
@@ -1772,7 +1783,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
 		return SUCCESS;
 	}
 
-	for (i = 0; i < wait_time; i++) {
+	for (i = 0; i < resetwaittime; i++) {
 
 		int outstanding = atomic_read(&instance->fw_outstanding);
 
@@ -1914,7 +1925,7 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
 		/* FW is busy, throttle IO */
 		spin_lock_irqsave(instance->host->host_lock, flags);
 
-		instance->host->can_queue = 16;
+		instance->host->can_queue = instance->throttlequeuedepth;
 		instance->last_time = jiffies;
 		instance->flag |= MEGASAS_FW_BUSY;
 
@@ -3577,6 +3588,24 @@ static int megasas_init_fw(struct megasas_instance *instance)
 
 	kfree(ctrl_info);
 
+	/* Check for valid throttlequeuedepth module parameter */
+	if (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY ||
+	    instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) {
+		if (throttlequeuedepth > (instance->max_fw_cmds -
+					  MEGASAS_SKINNY_INT_CMDS))
+			instance->throttlequeuedepth =
+				MEGASAS_THROTTLE_QUEUE_DEPTH;
+		else
+			instance->throttlequeuedepth = throttlequeuedepth;
+	} else {
+		if (throttlequeuedepth > (instance->max_fw_cmds -
+					  MEGASAS_INT_CMDS))
+			instance->throttlequeuedepth =
+				MEGASAS_THROTTLE_QUEUE_DEPTH;
+		else
+			instance->throttlequeuedepth = throttlequeuedepth;
+	}
+
         /*
 	* Setup tasklet for cmd completion
 	*/
@@ -4066,7 +4095,6 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init(&instance->cmd_pool_lock);
 	spin_lock_init(&instance->hba_lock);
 	spin_lock_init(&instance->completion_lock);
-	spin_lock_init(&poll_aen_lock);
 
 	mutex_init(&instance->aen_mutex);
 	mutex_init(&instance->reset_mutex);
@@ -5392,6 +5420,8 @@ static int __init megasas_init(void)
 	printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION,
 	       MEGASAS_EXT_VERSION);
 
+	spin_lock_init(&poll_aen_lock);
+
 	support_poll_for_event = 2;
 	support_device_change = 1;
 
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index a610cf1d484..ddf094e7d0a 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -94,6 +94,7 @@ int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
 void megaraid_sas_kill_hba(struct megasas_instance *instance);
 
 extern u32 megasas_dbg_lvl;
+extern int resetwaittime;
 
 /**
  * megasas_enable_intr_fusion -	Enables interrupts
@@ -461,8 +462,8 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance)
 	 * Allocate the dynamic array first and then allocate individual
 	 * commands.
 	 */
-	fusion->cmd_list = kmalloc(sizeof(struct megasas_cmd_fusion *)
-				   *max_cmd, GFP_KERNEL);
+	fusion->cmd_list = kzalloc(sizeof(struct megasas_cmd_fusion *)
+				   * max_cmd, GFP_KERNEL);
 
 	if (!fusion->cmd_list) {
 		printk(KERN_DEBUG "megasas: out of memory. Could not alloc "
@@ -470,9 +471,6 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance)
 		goto fail_cmd_list;
 	}
 
-	memset(fusion->cmd_list, 0, sizeof(struct megasas_cmd_fusion *)
-	       *max_cmd);
-
 	max_cmd = instance->max_fw_cmds;
 	for (i = 0; i < max_cmd; i++) {
 		fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion),
@@ -2063,9 +2061,9 @@ megasas_check_reset_fusion(struct megasas_instance *instance,
 int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance)
 {
 	int i, outstanding, retval = 0;
-	u32 fw_state, wait_time = MEGASAS_RESET_WAIT_TIME;
+	u32 fw_state;
 
-	for (i = 0; i < wait_time; i++) {
+	for (i = 0; i < resetwaittime; i++) {
 		/* Check if firmware is in fault state */
 		fw_state = instance->instancet->read_fw_status_reg(
 			instance->reg_set) & MFI_STATE_MASK;
diff --git a/drivers/scsi/mpt2sas/Kconfig b/drivers/scsi/mpt2sas/Kconfig
index bbb7e4bf30a..39f08dd2055 100644
--- a/drivers/scsi/mpt2sas/Kconfig
+++ b/drivers/scsi/mpt2sas/Kconfig
@@ -2,7 +2,7 @@
 # Kernel configuration file for the MPT2SAS
 #
 # This code is based on drivers/scsi/mpt2sas/Kconfig
-# Copyright (C) 2007-2010  LSI Corporation
+# Copyright (C) 2007-2012  LSI Corporation
 #  (mailto:DL-MPTFusionLinux@lsi.com)
 
 # This program is free software; you can redistribute it and/or
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2.h b/drivers/scsi/mpt2sas/mpi/mpi2.h
index a80f3220c64..e960f9625c7 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2000-2011 LSI Corporation.
+ *  Copyright (c) 2000-2012 LSI Corporation.
  *
  *
  *           Name:  mpi2.h
@@ -8,7 +8,7 @@
  *                  scatter/gather formats.
  *  Creation Date:  June 21, 2006
  *
- *  mpi2.h Version:  02.00.23
+ *  mpi2.h Version:  02.00.25
  *
  *  Version History
  *  ---------------
@@ -72,6 +72,9 @@
  *  05-25-11  02.00.21  Bumped MPI2_HEADER_VERSION_UNIT.
  *  08-24-11  02.00.22  Bumped MPI2_HEADER_VERSION_UNIT.
  *  11-18-11  02.00.23  Bumped MPI2_HEADER_VERSION_UNIT.
+ *  02-06-12  02.00.24  Bumped MPI2_HEADER_VERSION_UNIT.
+ *  03-29-12  02.00.25  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                      Added Hard Reset delay timings.
  *  --------------------------------------------------------------------------
  */
 
@@ -97,7 +100,7 @@
 #define MPI2_VERSION_02_00                  (0x0200)
 
 /* versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT            (0x17)
+#define MPI2_HEADER_VERSION_UNIT            (0x19)
 #define MPI2_HEADER_VERSION_DEV             (0x00)
 #define MPI2_HEADER_VERSION_UNIT_MASK       (0xFF00)
 #define MPI2_HEADER_VERSION_UNIT_SHIFT      (8)
@@ -275,6 +278,11 @@ typedef volatile struct _MPI2_SYSTEM_INTERFACE_REGS
 #define MPI2_REQUEST_DESCRIPTOR_POST_HIGH_OFFSET    (0x000000C4)
 
 
+/* Hard Reset delay timings */
+#define MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC     (50000)
+#define MPI2_HARD_RESET_PCIE_RESET_READ_WINDOW_MICRO_SEC    (255000)
+#define MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC    (256000)
+
 /*****************************************************************************
 *
 *        Message Descriptors
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_init.h b/drivers/scsi/mpt2sas/mpi/mpi2_init.h
index de90162413c..38c5da39814 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_init.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_init.h
@@ -1,12 +1,12 @@
 /*
- *  Copyright (c) 2000-2010 LSI Corporation.
+ *  Copyright (c) 2000-2012 LSI Corporation.
  *
  *
  *           Name:  mpi2_init.h
  *          Title:  MPI SCSI initiator mode messages and structures
  *  Creation Date:  June 23, 2006
  *
- *    mpi2_init.h Version:  02.00.11
+ *    mpi2_init.h Version:  02.00.13
  *
  *  Version History
  *  ---------------
@@ -34,6 +34,8 @@
  *  02-10-10  02.00.09  Removed unused structure that had "#if 0" around it.
  *  05-12-10  02.00.10  Added optional vendor-unique region to SCSI IO Request.
  *  11-10-10  02.00.11  Added MPI2_SCSIIO_NUM_SGLOFFSETS define.
+ *  02-06-12  02.00.13  Added alternate defines for Task Priority / Command
+ *                      Priority to match SAM-4.
  *  --------------------------------------------------------------------------
  */
 
@@ -194,6 +196,9 @@ typedef struct _MPI2_SCSI_IO_REQUEST
 
 #define MPI2_SCSIIO_CONTROL_TASKPRI_MASK        (0x00007800)
 #define MPI2_SCSIIO_CONTROL_TASKPRI_SHIFT       (11)
+/* alternate name for the previous field; called Command Priority in SAM-4 */
+#define MPI2_SCSIIO_CONTROL_CMDPRI_MASK         (0x00007800)
+#define MPI2_SCSIIO_CONTROL_CMDPRI_SHIFT        (11)
 
 #define MPI2_SCSIIO_CONTROL_TASKATTRIBUTE_MASK  (0x00000700)
 #define MPI2_SCSIIO_CONTROL_SIMPLEQ             (0x00000000)
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
index 9a925c07a9e..b0d4760bb17 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
@@ -1,12 +1,12 @@
 /*
- *  Copyright (c) 2000-2011 LSI Corporation.
+ *  Copyright (c) 2000-2012 LSI Corporation.
  *
  *
  *           Name:  mpi2_ioc.h
  *          Title:  MPI IOC, Port, Event, FW Download, and FW Upload messages
  *  Creation Date:  October 11, 2006
  *
- *  mpi2_ioc.h Version:  02.00.19
+ *  mpi2_ioc.h Version:  02.00.21
  *
  *  Version History
  *  ---------------
@@ -117,6 +117,7 @@
  *  08-24-11  02.00.19  Added PhysicalPort field to
  *                      MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE structure.
  *                      Marked MPI2_PM_CONTROL_FEATURE_PCIE_LINK as obsolete.
+ *  03-29-12  02.00.21  Added a product specific range to event values.
  *  --------------------------------------------------------------------------
  */
 
@@ -492,7 +493,8 @@ typedef struct _MPI2_EVENT_NOTIFICATION_REPLY
 #define MPI2_EVENT_SAS_NOTIFY_PRIMITIVE             (0x0026)
 #define MPI2_EVENT_TEMP_THRESHOLD                   (0x0027)
 #define MPI2_EVENT_HOST_MESSAGE                     (0x0028)
-
+#define MPI2_EVENT_MIN_PRODUCT_SPECIFIC             (0x006E)
+#define MPI2_EVENT_MAX_PRODUCT_SPECIFIC             (0x007F)
 
 /* Log Entry Added Event data */
 
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_raid.h b/drivers/scsi/mpt2sas/mpi/mpi2_raid.h
index 0601612b875..2b38af213be 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_raid.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_raid.h
@@ -1,12 +1,12 @@
 /*
- *  Copyright (c) 2000-2010 LSI Corporation.
+ *  Copyright (c) 2000-2012 LSI Corporation.
  *
  *
  *           Name:  mpi2_raid.h
  *          Title:  MPI Integrated RAID messages and structures
  *  Creation Date:  April 26, 2007
  *
- *    mpi2_raid.h Version:  02.00.06
+ *    mpi2_raid.h Version:  02.00.08
  *
  *  Version History
  *  ---------------
@@ -26,7 +26,7 @@
  *  08-24-10  02.00.06  Added MPI2_RAID_ACTION_COMPATIBILITY_CHECK along with
  *                      related structures and defines.
  *                      Added product-specific range to RAID Action values.
-
+ *  02-06-12  02.00.08  Added MPI2_RAID_ACTION_PHYSDISK_HIDDEN.
  *  --------------------------------------------------------------------------
  */
 
@@ -181,6 +181,7 @@ typedef struct _MPI2_RAID_ACTION_REQUEST
 #define MPI2_RAID_ACTION_START_RAID_FUNCTION        (0x21)
 #define MPI2_RAID_ACTION_STOP_RAID_FUNCTION         (0x22)
 #define MPI2_RAID_ACTION_COMPATIBILITY_CHECK        (0x23)
+#define MPI2_RAID_ACTION_PHYSDISK_HIDDEN            (0x24)
 #define MPI2_RAID_ACTION_MIN_PRODUCT_SPECIFIC       (0x80)
 #define MPI2_RAID_ACTION_MAX_PRODUCT_SPECIFIC       (0xFF)
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 9d46fcbe775..ffd85c511c8 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -3,7 +3,7 @@
  * for access to MPT (Message Passing Technology) firmware.
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_base.c
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -1209,6 +1209,13 @@ _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
 	u16 message_control;
 
 
+	/* Check whether controller SAS2008 B0 controller,
+	   if it is SAS2008 B0 controller use IO-APIC instead of MSIX */
+	if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 &&
+	    ioc->pdev->revision == 0x01) {
+		return -EINVAL;
+	}
+
 	base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
 	if (!base) {
 		dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
@@ -1971,9 +1978,9 @@ _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
 			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
 			    MPT2SAS_INTEL_RMS2LL040_BRANDING);
 			break;
-		case MPT2SAS_INTEL_RAMSDALE_SSDID:
+		case MPT2SAS_INTEL_SSD910_SSDID:
 			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-			    MPT2SAS_INTEL_RAMSDALE_BRANDING);
+			    MPT2SAS_INTEL_SSD910_BRANDING);
 			break;
 		default:
 			break;
@@ -2424,10 +2431,13 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 	}
 
 	/* command line tunables  for max controller queue depth */
-	if (max_queue_depth != -1)
-		max_request_credit = (max_queue_depth < facts->RequestCredit)
-		    ? max_queue_depth : facts->RequestCredit;
-	else
+	if (max_queue_depth != -1 && max_queue_depth != 0) {
+		max_request_credit = min_t(u16, max_queue_depth +
+			ioc->hi_priority_depth + ioc->internal_depth,
+			facts->RequestCredit);
+		if (max_request_credit > MAX_HBA_QUEUE_DEPTH)
+			max_request_credit =  MAX_HBA_QUEUE_DEPTH;
+	} else
 		max_request_credit = min_t(u16, facts->RequestCredit,
 		    MAX_HBA_QUEUE_DEPTH);
 
@@ -2502,7 +2512,7 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 	/* set the scsi host can_queue depth
 	 * with some internal commands that could be outstanding
 	 */
-	ioc->shost->can_queue = ioc->scsiio_depth - (2);
+	ioc->shost->can_queue = ioc->scsiio_depth;
 	dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: "
 	    "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue));
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index b3a1a30055d..543d8d63747 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -3,7 +3,7 @@
  * for access to MPT (Message Passing Technology) firmware.
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_base.h
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -69,8 +69,8 @@
 #define MPT2SAS_DRIVER_NAME		"mpt2sas"
 #define MPT2SAS_AUTHOR	"LSI Corporation <DL-MPTFusionLinux@lsi.com>"
 #define MPT2SAS_DESCRIPTION	"LSI MPT Fusion SAS 2.0 Device Driver"
-#define MPT2SAS_DRIVER_VERSION		"13.100.00.00"
-#define MPT2SAS_MAJOR_VERSION		13
+#define MPT2SAS_DRIVER_VERSION		"14.100.00.00"
+#define MPT2SAS_MAJOR_VERSION		14
 #define MPT2SAS_MINOR_VERSION		100
 #define MPT2SAS_BUILD_VERSION		00
 #define MPT2SAS_RELEASE_VERSION		00
@@ -171,8 +171,8 @@
 				"Intel Integrated RAID Module RMS2LL040"
 #define MPT2SAS_INTEL_RS25GB008_BRANDING       \
 				"Intel(R) RAID Controller RS25GB008"
-#define MPT2SAS_INTEL_RAMSDALE_BRANDING        \
-				"Intel 720 Series SSD"
+#define MPT2SAS_INTEL_SSD910_BRANDING          \
+				"Intel(R) SSD 910 Series"
 /*
  * Intel HBA SSDIDs
  */
@@ -183,7 +183,7 @@
 #define MPT2SAS_INTEL_RMS2LL080_SSDID          0x350E
 #define MPT2SAS_INTEL_RMS2LL040_SSDID          0x350F
 #define MPT2SAS_INTEL_RS25GB008_SSDID          0x3000
-#define MPT2SAS_INTEL_RAMSDALE_SSDID           0x3700
+#define MPT2SAS_INTEL_SSD910_SSDID             0x3700
 
 /*
  * HP HBA branding
@@ -1096,6 +1096,8 @@ int mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
     *mpi_reply, Mpi2IOUnitPage1_t *config_page);
 int mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
     *mpi_reply, Mpi2IOUnitPage1_t *config_page);
+int mpt2sas_config_get_iounit_pg3(struct MPT2SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage3_t *config_page, u16 sz);
 int mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
     *mpi_reply, Mpi2SasIOUnitPage1_t *config_page, u16 sz);
 int mpt2sas_config_set_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc,
diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c
index 2b4d37613d3..863778071a9 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_config.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_config.c
@@ -2,7 +2,7 @@
  * This module provides common API for accessing firmware configuration pages
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_base.c
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -683,6 +683,42 @@ mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc,
 }
 
 /**
+ * mpt2sas_config_get_iounit_pg3 - obtain iounit page 3
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt2sas_config_get_iounit_pg3(struct MPT2SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage3_t *config_page, u16 sz)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
+	mpi_request.Header.PageNumber = 3;
+	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE3_PAGEVERSION;
+	mpt2sas_base_build_zero_len_sge(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ out:
+	return r;
+}
+
+/**
  * mpt2sas_config_get_ioc_pg8 - obtain ioc page 8
  * @ioc: per adapter object
  * @mpi_reply: reply mf payload returned from firmware
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index 49bdd2dc845..08685c4cf23 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -3,7 +3,7 @@
  * controllers
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.c
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -2181,10 +2181,12 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
 		return -EAGAIN;
 
 	state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
-	if (state == NON_BLOCKING && !mutex_trylock(&ioc->ctl_cmds.mutex))
-		return -EAGAIN;
-	else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
+	if (state == NON_BLOCKING) {
+		if (!mutex_trylock(&ioc->ctl_cmds.mutex))
+			return -EAGAIN;
+	} else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
 		return -ERESTARTSYS;
+	}
 
 	switch (cmd) {
 	case MPT2IOCINFO:
@@ -2690,6 +2692,75 @@ _ctl_ioc_reply_queue_count_show(struct device *cdev,
 static DEVICE_ATTR(reply_queue_count, S_IRUGO,
 	 _ctl_ioc_reply_queue_count_show, NULL);
 
+/**
+ * _ctl_BRM_status_show - Backup Rail Monitor Status
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is number of reply queues
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
+	Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 backup_rail_monitor_status = 0;
+	u16 ioc_status;
+	int sz;
+	ssize_t rc = 0;
+
+	if (!ioc->is_warpdrive) {
+		printk(MPT2SAS_ERR_FMT "%s: BRM attribute is only for"\
+		    "warpdrive\n", ioc->name, __func__);
+		goto out;
+	}
+
+	/* allocate upto GPIOVal 36 entries */
+	sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
+	io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
+	if (!io_unit_pg3) {
+		printk(MPT2SAS_ERR_FMT "%s: failed allocating memory"\
+		    "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
+		goto out;
+	}
+
+	if (mpt2sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
+	    0) {
+		printk(MPT2SAS_ERR_FMT
+		    "%s: failed reading iounit_pg3\n", ioc->name,
+		    __func__);
+		goto out;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		printk(MPT2SAS_ERR_FMT "%s: iounit_pg3 failed with"\
+		    "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
+		goto out;
+	}
+
+	if (io_unit_pg3->GPIOCount < 25) {
+		printk(MPT2SAS_ERR_FMT "%s: iounit_pg3->GPIOCount less than"\
+		     "25 entries, detected (%d) entries\n", ioc->name, __func__,
+		    io_unit_pg3->GPIOCount);
+		goto out;
+	}
+
+	/* BRM status is in bit zero of GPIOVal[24] */
+	backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
+	rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
+
+ out:
+	kfree(io_unit_pg3);
+	return rc;
+}
+static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
+
 struct DIAG_BUFFER_START {
 	__le32 Size;
 	__le32 DiagVersion;
@@ -2901,6 +2972,7 @@ struct device_attribute *mpt2sas_host_attrs[] = {
 	&dev_attr_host_trace_buffer,
 	&dev_attr_host_trace_buffer_enable,
 	&dev_attr_reply_queue_count,
+	&dev_attr_BRM_status,
 	NULL,
 };
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.h b/drivers/scsi/mpt2sas/mpt2sas_ctl.h
index 11ff1d5fb8f..b5eb0d1b8ea 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.h
@@ -3,7 +3,7 @@
  * controllers
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.h
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
diff --git a/drivers/scsi/mpt2sas/mpt2sas_debug.h b/drivers/scsi/mpt2sas/mpt2sas_debug.h
index 9731f8e661b..69cc7d0c112 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_debug.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_debug.h
@@ -2,7 +2,7 @@
  * Logging Support for MPT (Message Passing Technology) based controllers
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_debug.c
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index b1ebd6f8dab..af4e6c451b1 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -2,7 +2,7 @@
  * Scsi Host Layer for MPT (Message Passing Technology) based controllers
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -119,6 +119,15 @@ module_param(diag_buffer_enable, int, 0);
 MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
 	"(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
 
+static int disable_discovery = -1;
+module_param(disable_discovery, int, 0);
+MODULE_PARM_DESC(disable_discovery, " disable discovery ");
+
+/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
+static int prot_mask = 0;
+module_param(prot_mask, int, 0);
+MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
+
 /**
  * struct sense_info - common structure for obtaining sense keys
  * @skey: sense key
@@ -3768,8 +3777,6 @@ static void
 _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
 {
 	u8 ascq;
-	u8 sk;
-	u8 host_byte;
 
 	switch (ioc_status) {
 	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
@@ -3786,16 +3793,8 @@ _scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
 		break;
 	}
 
-	if (scmd->sc_data_direction == DMA_TO_DEVICE) {
-		sk = ILLEGAL_REQUEST;
-		host_byte = DID_ABORT;
-	} else {
-		sk = ABORTED_COMMAND;
-		host_byte = DID_OK;
-	}
-
-	scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
-	scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
+	scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10, ascq);
+	scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
 	    SAM_STAT_CHECK_CONDITION;
 }
 
@@ -5973,8 +5972,14 @@ _scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
 #endif
 
 	if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
-	    !ioc->sas_hba.num_phys)
+	    !ioc->sas_hba.num_phys) {
+		if (disable_discovery > 0 && ioc->shost_recovery) {
+			/* Wait for the reset to complete */
+			while (ioc->shost_recovery)
+				ssleep(1);
+		}
 		_scsih_sas_host_add(ioc);
+	}
 }
 
 /**
@@ -7254,7 +7259,8 @@ mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
 		_scsih_search_responding_sas_devices(ioc);
 		_scsih_search_responding_raid_devices(ioc);
 		_scsih_search_responding_expanders(ioc);
-		if (!ioc->is_driver_loading) {
+		if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
+		    !ioc->sas_hba.num_phys)) {
 			_scsih_prep_device_scan(ioc);
 			_scsih_search_responding_sas_devices(ioc);
 			_scsih_search_responding_raid_devices(ioc);
@@ -7929,6 +7935,9 @@ _scsih_scan_start(struct Scsi_Host *shost)
 	if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
 		mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);
 
+	if (disable_discovery > 0)
+		return;
+
 	ioc->start_scan = 1;
 	rc = mpt2sas_port_enable(ioc);
 
@@ -7950,6 +7959,12 @@ _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
 {
 	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
 
+	if (disable_discovery > 0) {
+		ioc->is_driver_loading = 0;
+		ioc->wait_for_discovery_to_complete = 0;
+		return 1;
+	}
+
 	if (time >= (300 * HZ)) {
 		ioc->base_cmds.status = MPT2_CMD_NOT_USED;
 		printk(MPT2SAS_INFO_FMT "port enable: FAILED with timeout "
@@ -8055,8 +8070,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (max_sectors != 0xFFFF) {
 		if (max_sectors < 64) {
 			shost->max_sectors = 64;
-			printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
-			    "for max_sectors, range is 64 to 8192. Assigning "
+			printk(MPT2SAS_WARN_FMT "Invalid value %d passed "\
+			    "for max_sectors, range is 64 to 32767. Assigning "\
 			    "value of 64.\n", ioc->name, max_sectors);
 		} else if (max_sectors > 32767) {
 			shost->max_sectors = 32767;
@@ -8078,8 +8093,14 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto out_add_shost_fail;
 	}
 
-	scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
-	    | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
+	/* register EEDP capabilities with SCSI layer */
+	if (prot_mask)
+		scsi_host_set_prot(shost, prot_mask);
+	else
+		scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
+				   | SHOST_DIF_TYPE2_PROTECTION
+				   | SHOST_DIF_TYPE3_PROTECTION);
+
 	scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
 
 	/* event thread */
@@ -8306,7 +8327,7 @@ _scsih_pci_mmio_enabled(struct pci_dev *pdev)
 	return PCI_ERS_RESULT_NEED_RESET;
 }
 
-static struct pci_error_handlers _scsih_err_handler = {
+static const struct pci_error_handlers _scsih_err_handler = {
 	.error_detected = _scsih_pci_error_detected,
 	.mmio_enabled = _scsih_pci_mmio_enabled,
 	.slot_reset =	_scsih_pci_slot_reset,
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index c6cf20f6072..8c2ffbe6af0 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -2,7 +2,7 @@
  * SAS Transport Layer for MPT (Message Passing Technology) based controllers
  *
  * This code is based on drivers/scsi/mpt2sas/mpt2_transport.c
- * Copyright (C) 2007-2010  LSI Corporation
+ * Copyright (C) 2007-2012  LSI Corporation
  *  (mailto:DL-MPTFusionLinux@lsi.com)
  *
  * This program is free software; you can redistribute it and/or
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 4539d59a085..a3776d6ced6 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1629,7 +1629,7 @@ int mvs_abort_task(struct sas_task *task)
 			mv_dprintk("mvs_abort_task() mvi=%p task=%p "
 				   "slot=%p slot_idx=x%x\n",
 				   mvi, task, slot, slot_idx);
-			mvs_tmf_timedout((unsigned long)task);
+			task->task_state_flags |= SAS_TASK_STATE_ABORTED;
 			mvs_slot_task_free(mvi, task, slot, slot_idx);
 			rc = TMF_RESP_FUNC_COMPLETE;
 			goto out;
diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index 88cf1db21a7..783edc7c6b9 100644
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -122,7 +122,7 @@ static struct mvumi_res *mvumi_alloc_mem_resource(struct mvumi_hba *mhba,
 
 	if (!res) {
 		dev_err(&mhba->pdev->dev,
-			"Failed to allocate memory for resouce manager.\n");
+			"Failed to allocate memory for resource manager.\n");
 		return NULL;
 	}
 
@@ -1007,13 +1007,13 @@ static int mvumi_handshake(struct mvumi_hba *mhba)
 		tmp |= INT_MAP_COMAOUT | INT_MAP_COMAERR;
 		iowrite32(tmp, regs + CPU_ENPOINTA_MASK_REG);
 		iowrite32(mhba->list_num_io, mhba->ib_shadow);
-		/* Set InBound List Avaliable count shadow */
+		/* Set InBound List Available count shadow */
 		iowrite32(lower_32_bits(mhba->ib_shadow_phys),
 					regs + CLA_INB_AVAL_COUNT_BASEL);
 		iowrite32(upper_32_bits(mhba->ib_shadow_phys),
 					regs + CLA_INB_AVAL_COUNT_BASEH);
 
-		/* Set OutBound List Avaliable count shadow */
+		/* Set OutBound List Available count shadow */
 		iowrite32((mhba->list_num_io-1) | CL_POINTER_TOGGLE,
 						mhba->ob_shadow);
 		iowrite32(lower_32_bits(mhba->ob_shadow_phys), regs + 0x5B0);
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index ea8a0b47d66..af763eab203 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -5459,7 +5459,7 @@ static void __devexit pmcraid_remove(struct pci_dev *pdev)
 	pmcraid_shutdown(pdev);
 
 	pmcraid_disable_interrupts(pinstance, ~0);
-	flush_work_sync(&pinstance->worker_q);
+	flush_work(&pinstance->worker_q);
 
 	pmcraid_kill_tasklets(pinstance);
 	pmcraid_unregister_interrupt_handler(pinstance);
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 5ab953029f8..1c28215f8be 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -26,7 +26,7 @@ qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
 	struct qla_hw_data *ha = vha->hw;
 	int rval = 0;
 
-	if (ha->fw_dump_reading == 0)
+	if (!(ha->fw_dump_reading || ha->mctp_dump_reading))
 		return 0;
 
 	if (IS_QLA82XX(ha)) {
@@ -39,9 +39,14 @@ qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
 		rval = memory_read_from_buffer(buf, count,
 		    &off, ha->md_dump, ha->md_dump_size);
 		return rval;
-	} else
+	} else if (ha->mctp_dumped && ha->mctp_dump_reading)
+		return memory_read_from_buffer(buf, count, &off, ha->mctp_dump,
+		    MCTP_DUMP_SIZE);
+	else if (ha->fw_dump_reading)
 		return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
 					ha->fw_dump_len);
+	else
+		return 0;
 }
 
 static ssize_t
@@ -107,6 +112,22 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
 		if (IS_QLA82XX(ha))
 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 		break;
+	case 6:
+		if (!ha->mctp_dump_reading)
+			break;
+		ql_log(ql_log_info, vha, 0x70c1,
+		    "MCTP dump cleared on (%ld).\n", vha->host_no);
+		ha->mctp_dump_reading = 0;
+		ha->mctp_dumped = 0;
+		break;
+	case 7:
+		if (ha->mctp_dumped && !ha->mctp_dump_reading) {
+			ha->mctp_dump_reading = 1;
+			ql_log(ql_log_info, vha, 0x70c2,
+			    "Raw mctp dump ready for read on (%ld).\n",
+			    vha->host_no);
+		}
+		break;
 	}
 	return count;
 }
@@ -564,6 +585,7 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
 	struct qla_hw_data *ha = vha->hw;
 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 	int type;
+	uint32_t idc_control;
 
 	if (off != 0)
 		return -EINVAL;
@@ -587,22 +609,36 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
 		scsi_unblock_requests(vha->host);
 		break;
 	case 0x2025d:
-		if (!IS_QLA81XX(ha) || !IS_QLA8031(ha))
+		if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha))
 			return -EPERM;
 
 		ql_log(ql_log_info, vha, 0x706f,
 		    "Issuing MPI reset.\n");
 
-		/* Make sure FC side is not in reset */
-		qla2x00_wait_for_hba_online(vha);
-
-		/* Issue MPI reset */
-		scsi_block_requests(vha->host);
-		if (qla81xx_restart_mpi_firmware(vha) != QLA_SUCCESS)
-			ql_log(ql_log_warn, vha, 0x7070,
-			    "MPI reset failed.\n");
-		scsi_unblock_requests(vha->host);
-		break;
+		if (IS_QLA83XX(ha)) {
+			uint32_t idc_control;
+
+			qla83xx_idc_lock(vha, 0);
+			__qla83xx_get_idc_control(vha, &idc_control);
+			idc_control |= QLA83XX_IDC_GRACEFUL_RESET;
+			__qla83xx_set_idc_control(vha, idc_control);
+			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
+			    QLA8XXX_DEV_NEED_RESET);
+			qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
+			qla83xx_idc_unlock(vha, 0);
+			break;
+		} else {
+			/* Make sure FC side is not in reset */
+			qla2x00_wait_for_hba_online(vha);
+
+			/* Issue MPI reset */
+			scsi_block_requests(vha->host);
+			if (qla81xx_restart_mpi_firmware(vha) != QLA_SUCCESS)
+				ql_log(ql_log_warn, vha, 0x7070,
+				    "MPI reset failed.\n");
+			scsi_unblock_requests(vha->host);
+			break;
+		}
 	case 0x2025e:
 		if (!IS_QLA82XX(ha) || vha != base_vha) {
 			ql_log(ql_log_info, vha, 0x7071,
@@ -616,6 +652,29 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
 		qla2xxx_wake_dpc(vha);
 		qla2x00_wait_for_fcoe_ctx_reset(vha);
 		break;
+	case 0x2025f:
+		if (!IS_QLA8031(ha))
+			return -EPERM;
+		ql_log(ql_log_info, vha, 0x70bc,
+		    "Disabling Reset by IDC control\n");
+		qla83xx_idc_lock(vha, 0);
+		__qla83xx_get_idc_control(vha, &idc_control);
+		idc_control |= QLA83XX_IDC_RESET_DISABLED;
+		__qla83xx_set_idc_control(vha, idc_control);
+		qla83xx_idc_unlock(vha, 0);
+		break;
+	case 0x20260:
+		if (!IS_QLA8031(ha))
+			return -EPERM;
+		ql_log(ql_log_info, vha, 0x70bd,
+		    "Enabling Reset by IDC control\n");
+		qla83xx_idc_lock(vha, 0);
+		__qla83xx_get_idc_control(vha, &idc_control);
+		idc_control &= ~QLA83XX_IDC_RESET_DISABLED;
+		__qla83xx_set_idc_control(vha, idc_control);
+		qla83xx_idc_unlock(vha, 0);
+		break;
+
 	}
 	return count;
 }
@@ -1251,6 +1310,49 @@ qla2x00_fw_state_show(struct device *dev, struct device_attribute *attr,
 	    state[1], state[2], state[3], state[4]);
 }
 
+static ssize_t
+qla2x00_diag_requests_show(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+
+	if (!IS_BIDI_CAPABLE(vha->hw))
+		return snprintf(buf, PAGE_SIZE, "\n");
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", vha->bidi_stats.io_count);
+}
+
+static ssize_t
+qla2x00_diag_megabytes_show(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+
+	if (!IS_BIDI_CAPABLE(vha->hw))
+		return snprintf(buf, PAGE_SIZE, "\n");
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n",
+	    vha->bidi_stats.transfer_bytes >> 20);
+}
+
+static ssize_t
+qla2x00_fw_dump_size_show(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t size;
+
+	if (!ha->fw_dumped)
+		size = 0;
+	else if (IS_QLA82XX(ha))
+		size = ha->md_template_size + ha->md_dump_size;
+	else
+		size = ha->fw_dump_len;
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", size);
+}
+
 static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
 static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
 static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
@@ -1289,6 +1391,9 @@ static DEVICE_ATTR(vn_port_mac_address, S_IRUGO,
 static DEVICE_ATTR(fabric_param, S_IRUGO, qla2x00_fabric_param_show, NULL);
 static DEVICE_ATTR(fw_state, S_IRUGO, qla2x00_fw_state_show, NULL);
 static DEVICE_ATTR(thermal_temp, S_IRUGO, qla2x00_thermal_temp_show, NULL);
+static DEVICE_ATTR(diag_requests, S_IRUGO, qla2x00_diag_requests_show, NULL);
+static DEVICE_ATTR(diag_megabytes, S_IRUGO, qla2x00_diag_megabytes_show, NULL);
+static DEVICE_ATTR(fw_dump_size, S_IRUGO, qla2x00_fw_dump_size_show, NULL);
 
 struct device_attribute *qla2x00_host_attrs[] = {
 	&dev_attr_driver_version,
@@ -1318,6 +1423,9 @@ struct device_attribute *qla2x00_host_attrs[] = {
 	&dev_attr_fw_state,
 	&dev_attr_optrom_gold_fw_version,
 	&dev_attr_thermal_temp,
+	&dev_attr_diag_requests,
+	&dev_attr_diag_megabytes,
+	&dev_attr_fw_dump_size,
 	NULL,
 };
 
@@ -1704,7 +1812,7 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
 
 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
 		if (ha->fw_attributes & BIT_4) {
-			int prot = 0;
+			int prot = 0, guard;
 			vha->flags.difdix_supported = 1;
 			ql_dbg(ql_dbg_user, vha, 0x7082,
 			    "Registered for DIF/DIX type 1 and 3 protection.\n");
@@ -1717,7 +1825,14 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
 			    | SHOST_DIX_TYPE1_PROTECTION
 			    | SHOST_DIX_TYPE2_PROTECTION
 			    | SHOST_DIX_TYPE3_PROTECTION);
-			scsi_host_set_guard(vha->host, SHOST_DIX_GUARD_CRC);
+
+			guard = SHOST_DIX_GUARD_CRC;
+
+			if (IS_PI_IPGUARD_CAPABLE(ha) &&
+			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
+				guard |= SHOST_DIX_GUARD_IP;
+
+			scsi_host_set_guard(vha->host, guard);
 		} else
 			vha->flags.difdix_supported = 0;
 	}
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index c68883806c5..2f9bddd3c61 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -530,13 +530,13 @@ done_unmap_sg:
 done:
 	return rval;
 }
-
-/* Set the port configuration to enable the
- * internal loopback on ISP81XX
+/*
+ * Set the port configuration to enable the internal or external loopback
+ * depending on the loopback mode.
  */
 static inline int
-qla81xx_set_internal_loopback(scsi_qla_host_t *vha, uint16_t *config,
-    uint16_t *new_config)
+qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
+	uint16_t *new_config, uint16_t mode)
 {
 	int ret = 0;
 	int rval = 0;
@@ -545,8 +545,14 @@ qla81xx_set_internal_loopback(scsi_qla_host_t *vha, uint16_t *config,
 	if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
 		goto done_set_internal;
 
-	new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
-	memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
+	if (mode == INTERNAL_LOOPBACK)
+		new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
+	else if (mode == EXTERNAL_LOOPBACK)
+		new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1);
+	ql_dbg(ql_dbg_user, vha, 0x70be,
+	     "new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK));
+
+	memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3);
 
 	ha->notify_dcbx_comp = 1;
 	ret = qla81xx_set_port_config(vha, new_config);
@@ -562,9 +568,17 @@ qla81xx_set_internal_loopback(scsi_qla_host_t *vha, uint16_t *config,
 	if (!wait_for_completion_timeout(&ha->dcbx_comp, (20 * HZ))) {
 		ql_dbg(ql_dbg_user, vha, 0x7022,
 		    "State change notification not received.\n");
-	} else
-		ql_dbg(ql_dbg_user, vha, 0x7023,
-		    "State change received.\n");
+		rval = -EINVAL;
+	} else {
+		if (ha->flags.idc_compl_status) {
+			ql_dbg(ql_dbg_user, vha, 0x70c3,
+			    "Bad status in IDC Completion AEN\n");
+			rval = -EINVAL;
+			ha->flags.idc_compl_status = 0;
+		} else
+			ql_dbg(ql_dbg_user, vha, 0x7023,
+			    "State change received.\n");
+	}
 
 	ha->notify_dcbx_comp = 0;
 
@@ -572,11 +586,9 @@ done_set_internal:
 	return rval;
 }
 
-/* Set the port configuration to disable the
- * internal loopback on ISP81XX
- */
+/* Disable loopback mode */
 static inline int
-qla81xx_reset_internal_loopback(scsi_qla_host_t *vha, uint16_t *config,
+qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
     int wait)
 {
 	int ret = 0;
@@ -589,8 +601,12 @@ qla81xx_reset_internal_loopback(scsi_qla_host_t *vha, uint16_t *config,
 
 	memset(new_config, 0 , sizeof(new_config));
 	if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
-			ENABLE_INTERNAL_LOOPBACK) {
+	    ENABLE_INTERNAL_LOOPBACK ||
+	    (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
+	    ENABLE_EXTERNAL_LOOPBACK) {
 		new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
+		ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
+		    (new_config[0] & INTERNAL_LOOPBACK_MASK));
 		memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
 
 		ha->notify_dcbx_comp = wait;
@@ -707,7 +723,8 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 
 	elreq.options = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
 
-	if ((ha->current_topology == ISP_CFG_F ||
+	if (atomic_read(&vha->loop_state) == LOOP_READY &&
+	    (ha->current_topology == ISP_CFG_F ||
 	    ((IS_QLA81XX(ha) || IS_QLA8031(ha)) &&
 	    le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE
 	    && req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
@@ -729,30 +746,24 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 				goto done_free_dma_req;
 			}
 
-			if (elreq.options != EXTERNAL_LOOPBACK) {
-				ql_dbg(ql_dbg_user, vha, 0x7020,
-				    "Internal: current port config = %x\n",
-				    config[0]);
-				if (qla81xx_set_internal_loopback(vha, config,
-					new_config)) {
-					ql_log(ql_log_warn, vha, 0x7024,
-					    "Internal loopback failed.\n");
-					bsg_job->reply->result =
-						(DID_ERROR << 16);
-					rval = -EPERM;
-					goto done_free_dma_req;
-				}
-			} else {
-				/* For external loopback to work
-				 * ensure internal loopback is disabled
-				 */
-				if (qla81xx_reset_internal_loopback(vha,
-					config, 1)) {
-					bsg_job->reply->result =
-						(DID_ERROR << 16);
-					rval = -EPERM;
-					goto done_free_dma_req;
-				}
+			ql_dbg(ql_dbg_user, vha, 0x70c0,
+			    "elreq.options=%04x\n", elreq.options);
+
+			if (elreq.options == EXTERNAL_LOOPBACK)
+				if (IS_QLA8031(ha))
+					rval = qla81xx_set_loopback_mode(vha,
+					    config, new_config, elreq.options);
+				else
+					rval = qla81xx_reset_loopback_mode(vha,
+					    config, 1);
+			else
+				rval = qla81xx_set_loopback_mode(vha, config,
+				    new_config, elreq.options);
+
+			if (rval) {
+				bsg_job->reply->result = (DID_ERROR << 16);
+				rval = -EPERM;
+				goto done_free_dma_req;
 			}
 
 			type = "FC_BSG_HST_VENDOR_LOOPBACK";
@@ -766,7 +777,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
 				/* Revert back to original port config
 				 * Also clear internal loopback
 				 */
-				qla81xx_reset_internal_loopback(vha,
+				qla81xx_reset_loopback_mode(vha,
 				    new_config, 0);
 			}
 
@@ -1364,7 +1375,7 @@ qla2x00_read_optrom(struct fc_bsg_job *bsg_job)
 	struct qla_hw_data *ha = vha->hw;
 	int rval = 0;
 
-	if (ha->flags.isp82xx_reset_hdlr_active)
+	if (ha->flags.nic_core_reset_hdlr_active)
 		return -EBUSY;
 
 	rval = qla2x00_optrom_setup(bsg_job, vha, 0);
@@ -1560,6 +1571,276 @@ done:
 }
 
 static int
+qla2x00_write_i2c(struct fc_bsg_job *bsg_job)
+{
+	struct Scsi_Host *host = bsg_job->shost;
+	scsi_qla_host_t *vha = shost_priv(host);
+	struct qla_hw_data *ha = vha->hw;
+	int rval = 0;
+	uint8_t bsg[DMA_POOL_SIZE];
+	struct qla_i2c_access *i2c = (void *)bsg;
+	dma_addr_t sfp_dma;
+	uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
+	if (!sfp) {
+		bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
+		    EXT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
+	    bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
+
+	memcpy(sfp, i2c->buffer, i2c->length);
+	rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
+	    i2c->device, i2c->offset, i2c->length, i2c->option);
+
+	if (rval) {
+		bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
+		    EXT_STATUS_MAILBOX;
+		goto dealloc;
+	}
+
+	bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
+
+dealloc:
+	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
+
+done:
+	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+	bsg_job->reply->result = DID_OK << 16;
+	bsg_job->job_done(bsg_job);
+
+	return 0;
+}
+
+static int
+qla2x00_read_i2c(struct fc_bsg_job *bsg_job)
+{
+	struct Scsi_Host *host = bsg_job->shost;
+	scsi_qla_host_t *vha = shost_priv(host);
+	struct qla_hw_data *ha = vha->hw;
+	int rval = 0;
+	uint8_t bsg[DMA_POOL_SIZE];
+	struct qla_i2c_access *i2c = (void *)bsg;
+	dma_addr_t sfp_dma;
+	uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
+	if (!sfp) {
+		bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
+		    EXT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	sg_copy_to_buffer(bsg_job->request_payload.sg_list,
+	    bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
+
+	rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
+		i2c->device, i2c->offset, i2c->length, i2c->option);
+
+	if (rval) {
+		bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
+		    EXT_STATUS_MAILBOX;
+		goto dealloc;
+	}
+
+	memcpy(i2c->buffer, sfp, i2c->length);
+	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
+	    bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
+
+	bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
+
+dealloc:
+	dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
+
+done:
+	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+	bsg_job->reply->reply_payload_rcv_len = sizeof(*i2c);
+	bsg_job->reply->result = DID_OK << 16;
+	bsg_job->job_done(bsg_job);
+
+	return 0;
+}
+
+static int
+qla24xx_process_bidir_cmd(struct fc_bsg_job *bsg_job)
+{
+	struct Scsi_Host *host = bsg_job->shost;
+	scsi_qla_host_t *vha = shost_priv(host);
+	struct qla_hw_data *ha = vha->hw;
+	uint16_t thread_id;
+	uint32_t rval = EXT_STATUS_OK;
+	uint16_t req_sg_cnt = 0;
+	uint16_t rsp_sg_cnt = 0;
+	uint16_t nextlid = 0;
+	uint32_t tot_dsds;
+	srb_t *sp = NULL;
+	uint32_t req_data_len = 0;
+	uint32_t rsp_data_len = 0;
+
+	/* Check the type of the adapter */
+	if (!IS_BIDI_CAPABLE(ha)) {
+		ql_log(ql_log_warn, vha, 0x70a0,
+			"This adapter is not supported\n");
+		rval = EXT_STATUS_NOT_SUPPORTED;
+		goto done;
+	}
+
+	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
+		test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
+		test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
+		rval =  EXT_STATUS_BUSY;
+		goto done;
+	}
+
+	/* Check if host is online */
+	if (!vha->flags.online) {
+		ql_log(ql_log_warn, vha, 0x70a1,
+			"Host is not online\n");
+		rval = EXT_STATUS_DEVICE_OFFLINE;
+		goto done;
+	}
+
+	/* Check if cable is plugged in or not */
+	if (vha->device_flags & DFLG_NO_CABLE) {
+		ql_log(ql_log_warn, vha, 0x70a2,
+			"Cable is unplugged...\n");
+		rval = EXT_STATUS_INVALID_CFG;
+		goto done;
+	}
+
+	/* Check if the switch is connected or not */
+	if (ha->current_topology != ISP_CFG_F) {
+		ql_log(ql_log_warn, vha, 0x70a3,
+			"Host is not connected to the switch\n");
+		rval = EXT_STATUS_INVALID_CFG;
+		goto done;
+	}
+
+	/* Check if operating mode is P2P */
+	if (ha->operating_mode != P2P) {
+		ql_log(ql_log_warn, vha, 0x70a4,
+		    "Host is operating mode is not P2p\n");
+		rval = EXT_STATUS_INVALID_CFG;
+		goto done;
+	}
+
+	thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
+
+	mutex_lock(&ha->selflogin_lock);
+	if (vha->self_login_loop_id == 0) {
+		/* Initialize all required  fields of fcport */
+		vha->bidir_fcport.vha = vha;
+		vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
+		vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
+		vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
+		vha->bidir_fcport.loop_id = vha->loop_id;
+
+		if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
+			ql_log(ql_log_warn, vha, 0x70a7,
+			    "Failed to login port %06X for bidirectional IOCB\n",
+			    vha->bidir_fcport.d_id.b24);
+			mutex_unlock(&ha->selflogin_lock);
+			rval = EXT_STATUS_MAILBOX;
+			goto done;
+		}
+		vha->self_login_loop_id = nextlid - 1;
+
+	}
+	/* Assign the self login loop id to fcport */
+	mutex_unlock(&ha->selflogin_lock);
+
+	vha->bidir_fcport.loop_id = vha->self_login_loop_id;
+
+	req_sg_cnt = dma_map_sg(&ha->pdev->dev,
+		bsg_job->request_payload.sg_list,
+		bsg_job->request_payload.sg_cnt,
+		DMA_TO_DEVICE);
+
+	if (!req_sg_cnt) {
+		rval = EXT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
+		bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
+		DMA_FROM_DEVICE);
+
+	if (!rsp_sg_cnt) {
+		rval = EXT_STATUS_NO_MEMORY;
+		goto done_unmap_req_sg;
+	}
+
+	if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
+		(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
+		ql_dbg(ql_dbg_user, vha, 0x70a9,
+		    "Dma mapping resulted in different sg counts "
+		    "[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
+		    "%x dma_reply_sg_cnt: %x]\n",
+		    bsg_job->request_payload.sg_cnt, req_sg_cnt,
+		    bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
+		rval = EXT_STATUS_NO_MEMORY;
+		goto done_unmap_sg;
+	}
+
+	if (req_data_len != rsp_data_len) {
+		rval = EXT_STATUS_BUSY;
+		ql_log(ql_log_warn, vha, 0x70aa,
+		    "req_data_len != rsp_data_len\n");
+		goto done_unmap_sg;
+	}
+
+	req_data_len = bsg_job->request_payload.payload_len;
+	rsp_data_len = bsg_job->reply_payload.payload_len;
+
+
+	/* Alloc SRB structure */
+	sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
+	if (!sp) {
+		ql_dbg(ql_dbg_user, vha, 0x70ac,
+		    "Alloc SRB structure failed\n");
+		rval = EXT_STATUS_NO_MEMORY;
+		goto done_unmap_sg;
+	}
+
+	/*Populate srb->ctx with bidir ctx*/
+	sp->u.bsg_job = bsg_job;
+	sp->free = qla2x00_bsg_sp_free;
+	sp->type = SRB_BIDI_CMD;
+	sp->done = qla2x00_bsg_job_done;
+
+	/* Add the read and write sg count */
+	tot_dsds = rsp_sg_cnt + req_sg_cnt;
+
+	rval = qla2x00_start_bidir(sp, vha, tot_dsds);
+	if (rval != EXT_STATUS_OK)
+		goto done_free_srb;
+	/* the bsg request  will be completed in the interrupt handler */
+	return rval;
+
+done_free_srb:
+	mempool_free(sp, ha->srb_mempool);
+done_unmap_sg:
+	dma_unmap_sg(&ha->pdev->dev,
+	    bsg_job->reply_payload.sg_list,
+	    bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
+done_unmap_req_sg:
+	dma_unmap_sg(&ha->pdev->dev,
+	    bsg_job->request_payload.sg_list,
+	    bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
+done:
+
+	/* Return an error vendor specific response
+	 * and complete the bsg request
+	 */
+	bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
+	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+	bsg_job->reply->reply_payload_rcv_len = 0;
+	bsg_job->reply->result = (DID_OK) << 16;
+	bsg_job->job_done(bsg_job);
+	/* Always retrun success, vendor rsp carries correct status */
+	return 0;
+}
+
+static int
 qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
 {
 	switch (bsg_job->request->rqst_data.h_vendor.vendor_cmd[0]) {
@@ -1596,6 +1877,15 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
 	case QL_VND_WRITE_FRU_STATUS:
 		return qla2x00_write_fru_status(bsg_job);
 
+	case QL_VND_WRITE_I2C:
+		return qla2x00_write_i2c(bsg_job);
+
+	case QL_VND_READ_I2C:
+		return qla2x00_read_i2c(bsg_job);
+
+	case QL_VND_DIAG_IO_CMD:
+		return qla24xx_process_bidir_cmd(bsg_job);
+
 	default:
 		bsg_job->reply->result = (DID_ERROR << 16);
 		bsg_job->job_done(bsg_job);
diff --git a/drivers/scsi/qla2xxx/qla_bsg.h b/drivers/scsi/qla2xxx/qla_bsg.h
index 70caa63a893..37b8b7ba742 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.h
+++ b/drivers/scsi/qla2xxx/qla_bsg.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -19,21 +19,41 @@
 #define QL_VND_SET_FRU_VERSION	0x0B
 #define QL_VND_READ_FRU_STATUS	0x0C
 #define QL_VND_WRITE_FRU_STATUS	0x0D
+#define QL_VND_DIAG_IO_CMD	0x0A
+#define QL_VND_WRITE_I2C	0x10
+#define QL_VND_READ_I2C		0x11
 
 /* BSG Vendor specific subcode returns */
 #define EXT_STATUS_OK			0
 #define EXT_STATUS_ERR			1
+#define EXT_STATUS_BUSY			2
 #define EXT_STATUS_INVALID_PARAM	6
+#define EXT_STATUS_DATA_OVERRUN		7
+#define EXT_STATUS_DATA_UNDERRUN	8
 #define EXT_STATUS_MAILBOX		11
 #define EXT_STATUS_NO_MEMORY		17
+#define EXT_STATUS_DEVICE_OFFLINE	22
+
+/*
+ * To support bidirectional iocb
+ * BSG Vendor specific returns
+ */
+#define EXT_STATUS_NOT_SUPPORTED	27
+#define EXT_STATUS_INVALID_CFG		28
+#define EXT_STATUS_DMA_ERR		29
+#define EXT_STATUS_TIMEOUT		30
+#define EXT_STATUS_THREAD_FAILED	31
+#define EXT_STATUS_DATA_CMP_FAILED	32
 
 /* BSG definations for interpreting CommandSent field */
 #define INT_DEF_LB_LOOPBACK_CMD         0
 #define INT_DEF_LB_ECHO_CMD             1
 
 /* Loopback related definations */
+#define INTERNAL_LOOPBACK		0xF1
 #define EXTERNAL_LOOPBACK		0xF2
 #define ENABLE_INTERNAL_LOOPBACK	0x02
+#define ENABLE_EXTERNAL_LOOPBACK	0x04
 #define INTERNAL_LOOPBACK_MASK		0x000E
 #define MAX_ELS_FRAME_PAYLOAD		252
 #define ELS_OPCODE_BYTE			0x10
@@ -183,4 +203,12 @@ struct qla_status_reg {
 	uint8_t reserved[7];
 } __packed;
 
+struct qla_i2c_access {
+	uint16_t device;
+	uint16_t offset;
+	uint16_t option;
+	uint16_t length;
+	uint8_t  buffer[0x40];
+} __packed;
+
 #endif
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index fdee5611f3e..44efe3cc79e 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -11,26 +11,31 @@
  * ----------------------------------------------------------------------
  * |             Level            |   Last Value Used  |     Holes	|
  * ----------------------------------------------------------------------
- * | Module Init and Probe        |       0x0122       | 0x4b,0xba,0xfa |
- * | Mailbox commands             |       0x1140       | 0x111a-0x111b  |
+ * | Module Init and Probe        |       0x0124       | 0x4b,0xba,0xfa |
+ * | Mailbox commands             |       0x114f       | 0x111a-0x111b  |
  * |                              |                    | 0x112c-0x112e  |
  * |                              |                    | 0x113a         |
- * | Device Discovery             |       0x2086       | 0x2020-0x2022  |
- * | Queue Command and IO tracing |       0x3030       | 0x3006,0x3008  |
+ * | Device Discovery             |       0x2087       | 0x2020-0x2022, |
+ * |                              |                    | 0x2016         |
+ * | Queue Command and IO tracing |       0x3030       | 0x3006-0x300b  |
+ * |                              |                    | 0x3027-0x3028  |
  * |                              |                    | 0x302d-0x302e  |
- * | DPC Thread                   |       0x401c       | 0x4002,0x4013  |
- * | Async Events                 |       0x505f       | 0x502b-0x502f  |
+ * | DPC Thread                   |       0x401d       | 0x4002,0x4013  |
+ * | Async Events                 |       0x5071       | 0x502b-0x502f  |
  * |                              |                    | 0x5047,0x5052  |
  * | Timer Routines               |       0x6011       |                |
- * | User Space Interactions      |       0x709f       | 0x7018,0x702e, |
+ * | User Space Interactions      |       0x70c3       | 0x7018,0x702e, |
  * |                              |                    | 0x7039,0x7045, |
  * |                              |                    | 0x7073-0x7075, |
- * |                              |                    | 0x708c         |
+ * |                              |                    | 0x708c,        |
+ * |                              |                    | 0x70a5,0x70a6, |
+ * |                              |                    | 0x70a8,0x70ab, |
+ * |                              |                    | 0x70ad-0x70ae  |
  * | Task Management              |       0x803c       | 0x8025-0x8026  |
  * |                              |                    | 0x800b,0x8039  |
  * | AER/EEH                      |       0x9011       |		|
  * | Virtual Port                 |       0xa007       |		|
- * | ISP82XX Specific             |       0xb054       | 0xb024         |
+ * | ISP82XX Specific             |       0xb084       | 0xb002,0xb024  |
  * | MultiQ                       |       0xc00c       |		|
  * | Misc                         |       0xd010       |		|
  * | Target Mode		  |	  0xe06f       |		|
@@ -2357,7 +2362,7 @@ ql_dbg(uint32_t level, scsi_qla_host_t *vha, int32_t id, const char *fmt, ...)
 
 /*
  * This function is for formatting and logging debug information.
- * It is to be used when vha is not available and pci is availble,
+ * It is to be used when vha is not available and pci is available,
  * i.e., before host allocation. It formats the message and logs it
  * to the messages file.
  * parameters:
@@ -2452,7 +2457,7 @@ ql_log(uint32_t level, scsi_qla_host_t *vha, int32_t id, const char *fmt, ...)
 
 /*
  * This function is for formatting and logging log messages.
- * It is to be used when vha is not available and pci is availble,
+ * It is to be used when vha is not available and pci is available,
  * i.e., before host allocation. It formats the message and logs
  * it to the messages file. All the messages are logged irrespective
  * of the value of ql2xextended_error_logging.
diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index f278df8cce0..8f911c0b1e7 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 39007f53aec..a9725bf5527 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -115,6 +115,82 @@
 #define WRT_REG_DWORD(addr, data)	writel(data,addr)
 
 /*
+ * ISP83XX specific remote register addresses
+ */
+#define QLA83XX_LED_PORT0			0x00201320
+#define QLA83XX_LED_PORT1			0x00201328
+#define QLA83XX_IDC_DEV_STATE		0x22102384
+#define QLA83XX_IDC_MAJOR_VERSION	0x22102380
+#define QLA83XX_IDC_MINOR_VERSION	0x22102398
+#define QLA83XX_IDC_DRV_PRESENCE	0x22102388
+#define QLA83XX_IDC_DRIVER_ACK		0x2210238c
+#define QLA83XX_IDC_CONTROL			0x22102390
+#define QLA83XX_IDC_AUDIT			0x22102394
+#define QLA83XX_IDC_LOCK_RECOVERY	0x2210239c
+#define QLA83XX_DRIVER_LOCKID		0x22102104
+#define QLA83XX_DRIVER_LOCK			0x8111c028
+#define QLA83XX_DRIVER_UNLOCK		0x8111c02c
+#define QLA83XX_FLASH_LOCKID		0x22102100
+#define QLA83XX_FLASH_LOCK			0x8111c010
+#define QLA83XX_FLASH_UNLOCK		0x8111c014
+#define QLA83XX_DEV_PARTINFO1		0x221023e0
+#define QLA83XX_DEV_PARTINFO2		0x221023e4
+#define QLA83XX_FW_HEARTBEAT		0x221020b0
+#define QLA83XX_PEG_HALT_STATUS1	0x221020a8
+#define QLA83XX_PEG_HALT_STATUS2	0x221020ac
+
+/* 83XX: Macros defining 8200 AEN Reason codes */
+#define IDC_DEVICE_STATE_CHANGE BIT_0
+#define IDC_PEG_HALT_STATUS_CHANGE BIT_1
+#define IDC_NIC_FW_REPORTED_FAILURE BIT_2
+#define IDC_HEARTBEAT_FAILURE BIT_3
+
+/* 83XX: Macros defining 8200 AEN Error-levels */
+#define ERR_LEVEL_NON_FATAL 0x1
+#define ERR_LEVEL_RECOVERABLE_FATAL 0x2
+#define ERR_LEVEL_UNRECOVERABLE_FATAL 0x4
+
+/* 83XX: Macros for IDC Version */
+#define QLA83XX_SUPP_IDC_MAJOR_VERSION 0x01
+#define QLA83XX_SUPP_IDC_MINOR_VERSION 0x0
+
+/* 83XX: Macros for scheduling dpc tasks */
+#define QLA83XX_NIC_CORE_RESET 0x1
+#define QLA83XX_IDC_STATE_HANDLER 0x2
+#define QLA83XX_NIC_CORE_UNRECOVERABLE 0x3
+
+/* 83XX: Macros for defining IDC-Control bits */
+#define QLA83XX_IDC_RESET_DISABLED BIT_0
+#define QLA83XX_IDC_GRACEFUL_RESET BIT_1
+
+/* 83XX: Macros for different timeouts */
+#define QLA83XX_IDC_INITIALIZATION_TIMEOUT 30
+#define QLA83XX_IDC_RESET_ACK_TIMEOUT 10
+#define QLA83XX_MAX_LOCK_RECOVERY_WAIT (2 * HZ)
+
+/* 83XX: Macros for defining class in DEV-Partition Info register */
+#define QLA83XX_CLASS_TYPE_NONE		0x0
+#define QLA83XX_CLASS_TYPE_NIC		0x1
+#define QLA83XX_CLASS_TYPE_FCOE		0x2
+#define QLA83XX_CLASS_TYPE_ISCSI	0x3
+
+/* 83XX: Macros for IDC Lock-Recovery stages */
+#define IDC_LOCK_RECOVERY_STAGE1	0x1 /* Stage1: Intent for
+					     * lock-recovery
+					     */
+#define IDC_LOCK_RECOVERY_STAGE2	0x2 /* Stage2: Perform lock-recovery */
+
+/* 83XX: Macros for IDC Audit type */
+#define IDC_AUDIT_TIMESTAMP		0x0 /* IDC-AUDIT: Record timestamp of
+					     * dev-state change to NEED-RESET
+					     * or NEED-QUIESCENT
+					     */
+#define IDC_AUDIT_COMPLETION		0x1 /* IDC-AUDIT: Record duration of
+					     * reset-recovery completion is
+					     * second
+					     */
+
+/*
  * The ISP2312 v2 chip cannot access the FLASH/GPIO registers via MMIO in an
  * 133Mhz slot.
  */
@@ -129,6 +205,7 @@
 #define MAX_FIBRE_DEVICES_2400	2048
 #define MAX_FIBRE_DEVICES_LOOP	128
 #define MAX_FIBRE_DEVICES_MAX	MAX_FIBRE_DEVICES_2400
+#define LOOPID_MAP_SIZE		(ha->max_fibre_devices)
 #define MAX_FIBRE_LUNS  	0xFFFF
 #define	MAX_HOST_COUNT		16
 
@@ -259,6 +336,7 @@ struct srb_iocb {
 #define SRB_ADISC_CMD	6
 #define SRB_TM_CMD	7
 #define SRB_SCSI_CMD	8
+#define SRB_BIDI_CMD	9
 
 typedef struct srb {
 	atomic_t ref_count;
@@ -594,6 +672,20 @@ typedef struct {
 #define MBA_DISCARD_RND_FRAME	0x8048	/* discard RND frame due to error. */
 #define MBA_REJECTED_FCP_CMD	0x8049	/* rejected FCP_CMD. */
 
+/* 83XX FCoE specific */
+#define MBA_IDC_AEN		0x8200  /* FCoE: NIC Core state change AEN */
+
+/* Interrupt type codes */
+#define INTR_ROM_MB_SUCCESS		0x1
+#define INTR_ROM_MB_FAILED		0x2
+#define INTR_MB_SUCCESS			0x10
+#define INTR_MB_FAILED			0x11
+#define INTR_ASYNC_EVENT		0x12
+#define INTR_RSP_QUE_UPDATE		0x13
+#define INTR_RSP_QUE_UPDATE_83XX	0x14
+#define INTR_ATIO_QUE_UPDATE		0x1C
+#define INTR_ATIO_RSP_QUE_UPDATE	0x1D
+
 /* ISP mailbox loopback echo diagnostic error code */
 #define MBS_LB_RESET	0x17
 /*
@@ -718,6 +810,7 @@ typedef struct {
 #define MBC_SEND_RNFT_ELS		0x5e	/* Send RNFT ELS request */
 #define MBC_GET_LINK_PRIV_STATS		0x6d	/* Get link & private data. */
 #define MBC_SET_VENDOR_ID		0x76	/* Set Vendor ID. */
+#define MBC_PORT_RESET			0x120	/* Port Reset */
 #define MBC_SET_PORT_CONFIG		0x122	/* Set port configuration */
 #define MBC_GET_PORT_CONFIG		0x123	/* Get port configuration */
 
@@ -1375,9 +1468,10 @@ typedef struct {
 } cont_a64_entry_t;
 
 #define PO_MODE_DIF_INSERT	0
-#define PO_MODE_DIF_REMOVE	BIT_0
-#define PO_MODE_DIF_PASS	BIT_1
-#define PO_MODE_DIF_REPLACE	(BIT_0 + BIT_1)
+#define PO_MODE_DIF_REMOVE	1
+#define PO_MODE_DIF_PASS	2
+#define PO_MODE_DIF_REPLACE	3
+#define PO_MODE_DIF_TCP_CKSUM	6
 #define PO_ENABLE_DIF_BUNDLING	BIT_8
 #define PO_ENABLE_INCR_GUARD_SEED	BIT_3
 #define PO_DISABLE_INCR_REF_TAG	BIT_5
@@ -1509,6 +1603,13 @@ typedef struct {
 #define CS_RETRY		0x82	/* Driver defined */
 #define CS_LOOP_DOWN_ABORT	0x83	/* Driver defined */
 
+#define CS_BIDIR_RD_OVERRUN			0x700
+#define CS_BIDIR_RD_WR_OVERRUN			0x707
+#define CS_BIDIR_RD_OVERRUN_WR_UNDERRUN		0x715
+#define CS_BIDIR_RD_UNDERRUN			0x1500
+#define CS_BIDIR_RD_UNDERRUN_WR_OVERRUN		0x1507
+#define CS_BIDIR_RD_WR_UNDERRUN			0x1515
+#define CS_BIDIR_DMA				0x200
 /*
  * Status entry status flags
  */
@@ -2373,6 +2474,11 @@ struct qla_statistics {
 	uint64_t output_bytes;
 };
 
+struct bidi_statistics {
+	unsigned long long io_count;
+	unsigned long long transfer_bytes;
+};
+
 /* Multi queue support */
 #define MBC_INITIALIZE_MULTIQ 0x1f
 #define QLA_QUE_PAGE 0X1000
@@ -2509,14 +2615,16 @@ struct qla_hw_data {
 		uint32_t	disable_msix_handshake	:1;
 		uint32_t	fcp_prio_enabled	:1;
 		uint32_t	isp82xx_fw_hung:1;
+		uint32_t	nic_core_hung:1;
 
 		uint32_t	quiesce_owner:1;
 		uint32_t	thermal_supported:1;
-		uint32_t	isp82xx_reset_hdlr_active:1;
-		uint32_t	isp82xx_reset_owner:1;
+		uint32_t	nic_core_reset_hdlr_active:1;
+		uint32_t	nic_core_reset_owner:1;
 		uint32_t	isp82xx_no_md_cap:1;
 		uint32_t	host_shutting_down:1;
-		/* 30 bits */
+		uint32_t	idc_compl_status:1;
+		/* 32 bits */
 	} flags;
 
 	/* This spinlock is used to protect "io transactions", you must
@@ -2670,6 +2778,16 @@ struct qla_hw_data {
 #define HAS_EXTENDED_IDS(ha)    ((ha)->device_type & DT_EXTENDED_IDS)
 #define IS_CT6_SUPPORTED(ha)	((ha)->device_type & DT_CT6_SUPPORTED)
 #define IS_MQUE_CAPABLE(ha)	((ha)->mqenable || IS_QLA83XX(ha))
+#define IS_BIDI_CAPABLE(ha)	((IS_QLA25XX(ha) || IS_QLA2031(ha)))
+/* Bit 21 of fw_attributes decides the MCTP capabilities */
+#define IS_MCTP_CAPABLE(ha)	(IS_QLA2031(ha) && \
+				((ha)->fw_attributes_ext[0] & BIT_0))
+#define IS_PI_UNINIT_CAPABLE(ha)	(IS_QLA83XX(ha))
+#define IS_PI_IPGUARD_CAPABLE(ha)	(IS_QLA83XX(ha))
+#define IS_PI_DIFB_DIX0_CAPABLE(ha)	(0)
+#define IS_PI_SPLIT_DET_CAPABLE_HBA(ha)	(IS_QLA83XX(ha))
+#define IS_PI_SPLIT_DET_CAPABLE(ha)	(IS_PI_SPLIT_DET_CAPABLE_HBA(ha) && \
+    (((ha)->fw_attributes_h << 16 | (ha)->fw_attributes) & BIT_22))
 
 	/* HBA serial number */
 	uint8_t		serial0;
@@ -2753,6 +2871,7 @@ struct qla_hw_data {
 	struct completion mbx_intr_comp;  /* Used for completion notification */
 	struct completion dcbx_comp;	/* For set port config notification */
 	int notify_dcbx_comp;
+	struct mutex selflogin_lock;
 
 	/* Basic firmware related information. */
 	uint16_t	fw_major_version;
@@ -2784,7 +2903,12 @@ struct qla_hw_data {
 	int		fw_dump_reading;
 	dma_addr_t	eft_dma;
 	void		*eft;
-
+/* Current size of mctp dump is 0x086064 bytes */
+#define MCTP_DUMP_SIZE  0x086064
+	dma_addr_t	mctp_dump_dma;
+	void		*mctp_dump;
+	int		mctp_dumped;
+	int		mctp_dump_reading;
 	uint32_t	chain_offset;
 	struct dentry *dfs_dir;
 	struct dentry *dfs_fce;
@@ -2896,8 +3020,8 @@ struct qla_hw_data {
 	unsigned long	mn_win_crb;
 	unsigned long	ms_win_crb;
 	int		qdr_sn_window;
-	uint32_t	nx_dev_init_timeout;
-	uint32_t	nx_reset_timeout;
+	uint32_t	fcoe_dev_init_timeout;
+	uint32_t	fcoe_reset_timeout;
 	rwlock_t	hw_lock;
 	uint16_t	portnum;		/* port number */
 	int		link_width;
@@ -2918,6 +3042,20 @@ struct qla_hw_data {
 	void            *md_dump;
 	uint32_t	md_dump_size;
 
+	void		*loop_id_map;
+
+	/* QLA83XX IDC specific fields */
+	uint32_t	idc_audit_ts;
+
+	/* DPC low-priority workqueue */
+	struct workqueue_struct *dpc_lp_wq;
+	struct work_struct idc_aen;
+	/* DPC high-priority workqueue */
+	struct workqueue_struct *dpc_hp_wq;
+	struct work_struct nic_core_reset;
+	struct work_struct idc_state_handler;
+	struct work_struct nic_core_unrecoverable;
+
 	struct qlt_hw_data tgt;
 };
 
@@ -2985,6 +3123,13 @@ typedef struct scsi_qla_host {
 
 	/* ISP configuration data. */
 	uint16_t	loop_id;		/* Host adapter loop id */
+	uint16_t        self_login_loop_id;     /* host adapter loop id
+						 * get it on self login
+						 */
+	fc_port_t       bidir_fcport;		/* fcport used for bidir cmnds
+						 * no need of allocating it for
+						 * each command
+						 */
 
 	port_id_t	d_id;			/* Host adapter port id */
 	uint8_t		marker_needed;
@@ -3038,6 +3183,7 @@ typedef struct scsi_qla_host {
 	int		seconds_since_last_heartbeat;
 	struct fc_host_statistics fc_host_stat;
 	struct qla_statistics qla_stats;
+	struct bidi_statistics bidi_stats;
 
 	atomic_t	vref_count;
 } scsi_qla_host_t;
diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c
index 499c74e39ee..706c4f7bc7c 100644
--- a/drivers/scsi/qla2xxx/qla_dfs.c
+++ b/drivers/scsi/qla2xxx/qla_dfs.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 6d7d7758c79..59524aa0ab3 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -381,6 +381,44 @@ struct init_cb_24xx {
 /*
  * ISP queue - command entry structure definition.
  */
+#define COMMAND_BIDIRECTIONAL 0x75
+struct cmd_bidir {
+	uint8_t entry_type;		/* Entry type. */
+	uint8_t entry_count;		/* Entry count. */
+	uint8_t sys_define;		/* System defined */
+	uint8_t entry_status;		/* Entry status. */
+
+	uint32_t handle;		/* System handle. */
+
+	uint16_t nport_handle;		/* N_PORT hanlde. */
+
+	uint16_t timeout;		/* Commnad timeout. */
+
+	uint16_t wr_dseg_count;		/* Write Data segment count. */
+	uint16_t rd_dseg_count;		/* Read Data segment count. */
+
+	struct scsi_lun lun;		/* FCP LUN (BE). */
+
+	uint16_t control_flags;		/* Control flags. */
+#define BD_WRAP_BACK			BIT_3
+#define BD_READ_DATA			BIT_1
+#define BD_WRITE_DATA			BIT_0
+
+	uint16_t fcp_cmnd_dseg_len;		/* Data segment length. */
+	uint32_t fcp_cmnd_dseg_address[2];	/* Data segment address. */
+
+	uint16_t reserved[2];			/* Reserved */
+
+	uint32_t rd_byte_count;			/* Total Byte count Read. */
+	uint32_t wr_byte_count;			/* Total Byte count write. */
+
+	uint8_t port_id[3];			/* PortID of destination port.*/
+	uint8_t vp_index;
+
+	uint32_t fcp_data_dseg_address[2];	/* Data segment address. */
+	uint16_t fcp_data_dseg_len;		/* Data segment length. */
+};
+
 #define COMMAND_TYPE_6	0x48		/* Command Type 6 entry */
 struct cmd_type_6 {
 	uint8_t entry_type;		/* Entry type. */
@@ -1130,7 +1168,7 @@ struct mid_db_entry_24xx {
 /*
  * Virtual Port Control IOCB
  */
-#define VP_CTRL_IOCB_TYPE	0x30	/* Vitual Port Control entry. */
+#define VP_CTRL_IOCB_TYPE	0x30	/* Virtual Port Control entry. */
 struct vp_ctrl_entry_24xx {
 	uint8_t entry_type;		/* Entry type. */
 	uint8_t entry_count;		/* Entry count. */
@@ -1166,7 +1204,7 @@ struct vp_ctrl_entry_24xx {
 /*
  * Modify Virtual Port Configuration IOCB
  */
-#define VP_CONFIG_IOCB_TYPE	0x31	/* Vitual Port Config entry. */
+#define VP_CONFIG_IOCB_TYPE	0x31	/* Virtual Port Config entry. */
 struct vp_config_entry_24xx {
 	uint8_t entry_type;		/* Entry type. */
 	uint8_t entry_count;		/* Entry count. */
@@ -1502,7 +1540,10 @@ struct access_chip_rsp_84xx {
 /*
  * ISP83xx mailbox commands
  */
-#define MBC_WRITE_REMOTE_REG 0x0001 /* Write remote register */
+#define MBC_WRITE_REMOTE_REG		0x0001 /* Write remote register */
+#define MBC_READ_REMOTE_REG		0x0009 /* Read remote register */
+#define MBC_RESTART_NIC_FIRMWARE	0x003d /* Restart NIC firmware */
+#define MBC_SET_ACCESS_CONTROL		0x003e /* Access control command */
 
 /* Flash access control option field bit definitions */
 #define FAC_OPT_FORCE_SEMAPHORE		BIT_15
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 9eacd2df111..6acb39785a4 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -48,7 +48,7 @@ extern void qla2x00_update_fcports(scsi_qla_host_t *);
 
 extern int qla2x00_abort_isp(scsi_qla_host_t *);
 extern void qla2x00_abort_isp_cleanup(scsi_qla_host_t *);
-extern void qla82xx_quiescent_state_cleanup(scsi_qla_host_t *);
+extern void qla2x00_quiesce_io(scsi_qla_host_t *);
 
 extern void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
 
@@ -76,6 +76,14 @@ extern int qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *, fc_port_t *);
 
 extern fc_port_t *
 qla2x00_alloc_fcport(scsi_qla_host_t *, gfp_t );
+
+extern int __qla83xx_set_idc_control(scsi_qla_host_t *, uint32_t);
+extern int __qla83xx_get_idc_control(scsi_qla_host_t *, uint32_t *);
+extern void qla83xx_idc_audit(scsi_qla_host_t *, int);
+extern int qla83xx_nic_core_reset(scsi_qla_host_t *);
+extern void qla83xx_reset_ownership(scsi_qla_host_t *);
+extern int qla2xxx_mctp_dump(scsi_qla_host_t *);
+
 /*
  * Global Data in qla_os.c source file.
  */
@@ -133,6 +141,20 @@ extern void qla2x00_relogin(struct scsi_qla_host *);
 extern void qla2x00_do_work(struct scsi_qla_host *);
 extern void qla2x00_free_fcports(struct scsi_qla_host *);
 
+extern void qla83xx_schedule_work(scsi_qla_host_t *, int);
+extern void qla83xx_service_idc_aen(struct work_struct *);
+extern void qla83xx_nic_core_unrecoverable_work(struct work_struct *);
+extern void qla83xx_idc_state_handler_work(struct work_struct *);
+extern void qla83xx_nic_core_reset_work(struct work_struct *);
+
+extern void qla83xx_idc_lock(scsi_qla_host_t *, uint16_t);
+extern void qla83xx_idc_unlock(scsi_qla_host_t *, uint16_t);
+extern int qla83xx_idc_state_handler(scsi_qla_host_t *);
+extern int qla83xx_set_drv_presence(scsi_qla_host_t *vha);
+extern int __qla83xx_set_drv_presence(scsi_qla_host_t *vha);
+extern int qla83xx_clear_drv_presence(scsi_qla_host_t *vha);
+extern int __qla83xx_clear_drv_presence(scsi_qla_host_t *vha);
+
 /*
  * Global Functions in qla_mid.c source file.
  */
@@ -188,6 +210,8 @@ extern int qla2x00_start_sp(srb_t *);
 extern uint16_t qla24xx_calc_iocbs(scsi_qla_host_t *, uint16_t);
 extern void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *, uint16_t);
 extern int qla24xx_dif_start_scsi(srb_t *);
+extern int qla2x00_start_bidir(srb_t *, struct scsi_qla_host *, uint32_t);
+extern unsigned long qla2x00_get_async_timeout(struct scsi_qla_host *);
 
 extern void *qla2x00_alloc_iocbs(scsi_qla_host_t *, srb_t *);
 extern int qla2x00_issue_marker(scsi_qla_host_t *, int);
@@ -376,6 +400,9 @@ qla81xx_set_port_config(scsi_qla_host_t *, uint16_t *);
 extern int
 qla2x00_port_logout(scsi_qla_host_t *, struct fc_port *);
 
+extern int
+qla2x00_dump_mctp_data(scsi_qla_host_t *, dma_addr_t, uint32_t, uint32_t);
+
 /*
  * Global Function Prototypes in qla_isr.c source file.
  */
@@ -419,7 +446,11 @@ extern void qla24xx_beacon_blink(struct scsi_qla_host *);
 extern void qla83xx_beacon_blink(struct scsi_qla_host *);
 extern int qla82xx_beacon_on(struct scsi_qla_host *);
 extern int qla82xx_beacon_off(struct scsi_qla_host *);
-extern int qla83xx_write_remote_reg(struct scsi_qla_host *, uint32_t, uint32_t);
+extern int qla83xx_wr_reg(scsi_qla_host_t *, uint32_t, uint32_t);
+extern int qla83xx_rd_reg(scsi_qla_host_t *, uint32_t, uint32_t *);
+extern int qla83xx_restart_nic_firmware(scsi_qla_host_t *);
+extern int qla83xx_access_control(scsi_qla_host_t *, uint16_t, uint32_t,
+    uint32_t, uint16_t *);
 
 extern uint8_t *qla2x00_read_optrom_data(struct scsi_qla_host *, uint8_t *,
     uint32_t, uint32_t);
@@ -527,7 +558,6 @@ extern void qla24xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t);
 /* PCI related functions */
 extern int qla82xx_pci_config(struct scsi_qla_host *);
 extern int qla82xx_pci_mem_read_2M(struct qla_hw_data *, u64, void *, int);
-extern char *qla82xx_pci_info_str(struct scsi_qla_host *, char *);
 extern int qla82xx_pci_region_offset(struct pci_dev *, int);
 extern int qla82xx_iospace_config(struct qla_hw_data *);
 
@@ -580,6 +610,7 @@ extern uint32_t  qla82xx_wait_for_state_change(scsi_qla_host_t *, uint32_t);
 extern int qla82xx_idc_lock(struct qla_hw_data *);
 extern void qla82xx_idc_unlock(struct qla_hw_data *);
 extern int qla82xx_device_state_handler(scsi_qla_host_t *);
+extern void qla8xxx_dev_failed_handler(scsi_qla_host_t *);
 extern void qla82xx_clear_qsnt_ready(scsi_qla_host_t *);
 
 extern void qla2x00_set_model_info(scsi_qla_host_t *, uint8_t *,
diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 05260d25fe4..f4e4bd7c3f4 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -1131,7 +1131,7 @@ qla2x00_mgmt_svr_login(scsi_qla_host_t *vha)
 		return ret;
 
 	rval = ha->isp_ops->fabric_login(vha, vha->mgmt_svr_loop_id, 0xff, 0xff,
-	    0xfa, mb, BIT_1|BIT_0);
+	    0xfa, mb, BIT_1);
 	if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
 		if (rval == QLA_MEMORY_ALLOC_FAILED)
 			ql_dbg(ql_dbg_disc, vha, 0x2085,
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index a44653b4216..799a58bb985 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -77,7 +77,7 @@ qla2x00_sp_free(void *data, void *ptr)
 
 /* Asynchronous Login/Logout Routines -------------------------------------- */
 
-static inline unsigned long
+unsigned long
 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
 {
 	unsigned long tmo;
@@ -429,6 +429,79 @@ qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 /*                QLogic ISP2x00 Hardware Support Functions.                */
 /****************************************************************************/
 
+int
+qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t idc_major_ver, idc_minor_ver;
+	uint16_t config[4];
+
+	qla83xx_idc_lock(vha, 0);
+
+	/* SV: TODO: Assign initialization timeout from
+	 * flash-info / other param
+	 */
+	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
+	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
+
+	/* Set our fcoe function presence */
+	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_p3p, vha, 0xb077,
+		    "Error while setting DRV-Presence.\n");
+		rval = QLA_FUNCTION_FAILED;
+		goto exit;
+	}
+
+	/* Decide the reset ownership */
+	qla83xx_reset_ownership(vha);
+
+	/*
+	 * On first protocol driver load:
+	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
+	 * register.
+	 * Others: Check compatibility with current IDC Major version.
+	 */
+	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
+	if (ha->flags.nic_core_reset_owner) {
+		/* Set IDC Major version */
+		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
+		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
+
+		/* Clearing IDC-Lock-Recovery register */
+		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
+	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
+		/*
+		 * Clear further IDC participation if we are not compatible with
+		 * the current IDC Major Version.
+		 */
+		ql_log(ql_log_warn, vha, 0xb07d,
+		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
+		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
+		__qla83xx_clear_drv_presence(vha);
+		rval = QLA_FUNCTION_FAILED;
+		goto exit;
+	}
+	/* Each function sets its supported Minor version. */
+	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
+	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
+	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
+
+	if (ha->flags.nic_core_reset_owner) {
+		memset(config, 0, sizeof(config));
+		if (!qla81xx_get_port_config(vha, config))
+			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
+			    QLA8XXX_DEV_READY);
+	}
+
+	rval = qla83xx_idc_state_handler(vha);
+
+exit:
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
 /*
 * qla2x00_initialize_adapter
 *      Initialize board.
@@ -537,6 +610,14 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 		}
 	}
 
+	/* Load the NIC Core f/w if we are the first protocol driver. */
+	if (IS_QLA8031(ha)) {
+		rval = qla83xx_nic_core_fw_load(vha);
+		if (rval)
+			ql_log(ql_log_warn, vha, 0x0124,
+			    "Error in initializing NIC Core f/w.\n");
+	}
+
 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
 		qla24xx_read_fcp_prio_cfg(vha);
 
@@ -686,7 +767,7 @@ qla24xx_pci_config(scsi_qla_host_t *vha)
 
 	/* PCIe -- adjust Maximum Read Request Size (2048). */
 	if (pci_is_pcie(ha->pdev))
-		pcie_set_readrq(ha->pdev, 2048);
+		pcie_set_readrq(ha->pdev, 4096);
 
 	pci_disable_rom(ha->pdev);
 
@@ -722,7 +803,7 @@ qla25xx_pci_config(scsi_qla_host_t *vha)
 
 	/* PCIe -- adjust Maximum Read Request Size (2048). */
 	if (pci_is_pcie(ha->pdev))
-		pcie_set_readrq(ha->pdev, 2048);
+		pcie_set_readrq(ha->pdev, 4096);
 
 	pci_disable_rom(ha->pdev);
 
@@ -1480,7 +1561,8 @@ enable_82xx_npiv:
 			    "ISP Firmware failed checksum.\n");
 			goto failed;
 		}
-	}
+	} else
+		goto failed;
 
 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
 		/* Enable proper parity. */
@@ -1825,7 +1907,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
 
 	if (ha->flags.npiv_supported) {
-		if (ha->operating_mode == LOOP)
+		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
 	}
@@ -2682,11 +2764,6 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 	new_fcport = NULL;
 	entries = MAX_FIBRE_DEVICES_LOOP;
 
-	ql_dbg(ql_dbg_disc, vha, 0x2016,
-	    "Getting FCAL position map.\n");
-	if (ql2xextended_error_logging & ql_dbg_disc)
-		qla2x00_get_fcal_position_map(vha, NULL);
-
 	/* Get list of logged in devices. */
 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
@@ -2753,6 +2830,8 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 		if (loop_id > LAST_LOCAL_LOOP_ID)
 			continue;
 
+		memset(new_fcport, 0, sizeof(fc_port_t));
+
 		/* Fill in member data. */
 		new_fcport->d_id.b.domain = domain;
 		new_fcport->d_id.b.area = area;
@@ -3285,7 +3364,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
 			 */
 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
 				fcport->d_id.b24 = new_fcport->d_id.b24;
-				fcport->loop_id = FC_NO_LOOP_ID;
+				qla2x00_clear_loop_id(fcport);
 				fcport->flags |= (FCF_FABRIC_DEVICE |
 				    FCF_LOGIN_NEEDED);
 				break;
@@ -3306,7 +3385,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
 				ha->isp_ops->fabric_logout(vha, fcport->loop_id,
 				    fcport->d_id.b.domain, fcport->d_id.b.area,
 				    fcport->d_id.b.al_pa);
-				fcport->loop_id = FC_NO_LOOP_ID;
+				qla2x00_clear_loop_id(fcport);
 			}
 
 			break;
@@ -3352,71 +3431,32 @@ int
 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
 {
 	int	rval;
-	int	found;
-	fc_port_t *fcport;
-	uint16_t first_loop_id;
 	struct qla_hw_data *ha = vha->hw;
-	struct scsi_qla_host *vp;
-	struct scsi_qla_host *tvp;
 	unsigned long flags = 0;
 
 	rval = QLA_SUCCESS;
 
-	/* Save starting loop ID. */
-	first_loop_id = dev->loop_id;
-
-	for (;;) {
-		/* Skip loop ID if already used by adapter. */
-		if (dev->loop_id == vha->loop_id)
-			dev->loop_id++;
-
-		/* Skip reserved loop IDs. */
-		while (qla2x00_is_reserved_id(vha, dev->loop_id))
-			dev->loop_id++;
-
-		/* Reset loop ID if passed the end. */
-		if (dev->loop_id > ha->max_loop_id) {
-			/* first loop ID. */
-			dev->loop_id = ha->min_external_loopid;
-		}
-
-		/* Check for loop ID being already in use. */
-		found = 0;
-		fcport = NULL;
-
-		spin_lock_irqsave(&ha->vport_slock, flags);
-		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
-			list_for_each_entry(fcport, &vp->vp_fcports, list) {
-				if (fcport->loop_id == dev->loop_id &&
-								fcport != dev) {
-					/* ID possibly in use */
-					found++;
-					break;
-				}
-			}
-			if (found)
-				break;
-		}
-		spin_unlock_irqrestore(&ha->vport_slock, flags);
+	spin_lock_irqsave(&ha->vport_slock, flags);
 
-		/* If not in use then it is free to use. */
-		if (!found) {
-			ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
-			    "Assigning new loopid=%x, portid=%x.\n",
-			    dev->loop_id, dev->d_id.b24);
-			break;
-		}
+	dev->loop_id = find_first_zero_bit(ha->loop_id_map,
+	    LOOPID_MAP_SIZE);
+	if (dev->loop_id >= LOOPID_MAP_SIZE ||
+	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
+		dev->loop_id = FC_NO_LOOP_ID;
+		rval = QLA_FUNCTION_FAILED;
+	} else
+		set_bit(dev->loop_id, ha->loop_id_map);
 
-		/* ID in use. Try next value. */
-		dev->loop_id++;
+	spin_unlock_irqrestore(&ha->vport_slock, flags);
 
-		/* If wrap around. No free ID to use. */
-		if (dev->loop_id == first_loop_id) {
-			dev->loop_id = FC_NO_LOOP_ID;
-			rval = QLA_FUNCTION_FAILED;
-			break;
-		}
-	}
+	if (rval == QLA_SUCCESS)
+		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
+		    "Assigning new loopid=%x, portid=%x.\n",
+		    dev->loop_id, dev->d_id.b24);
+	else
+		ql_log(ql_log_warn, dev->vha, 0x2087,
+		    "No loop_id's available, portid=%x.\n",
+		    dev->d_id.b24);
 
 	return (rval);
 }
@@ -3616,7 +3656,7 @@ qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
 			    fcport->d_id.b.domain, fcport->d_id.b.area,
 			    fcport->d_id.b.al_pa);
-			fcport->loop_id = FC_NO_LOOP_ID;
+			qla2x00_clear_loop_id(fcport);
 			fcport->login_retry = 0;
 
 			rval = 3;
@@ -3775,8 +3815,363 @@ qla2x00_update_fcports(scsi_qla_host_t *base_vha)
 	spin_unlock_irqrestore(&ha->vport_slock, flags);
 }
 
+/* Assumes idc_lock always held on entry */
+void
+qla83xx_reset_ownership(scsi_qla_host_t *vha)
+{
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t drv_presence, drv_presence_mask;
+	uint32_t dev_part_info1, dev_part_info2, class_type;
+	uint32_t class_type_mask = 0x3;
+	uint16_t fcoe_other_function = 0xffff, i;
+
+	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
+
+	qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
+	qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
+	for (i = 0; i < 8; i++) {
+		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
+		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
+		    (i != ha->portnum)) {
+			fcoe_other_function = i;
+			break;
+		}
+	}
+	if (fcoe_other_function == 0xffff) {
+		for (i = 0; i < 8; i++) {
+			class_type = ((dev_part_info2 >> (i * 4)) &
+			    class_type_mask);
+			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
+			    ((i + 8) != ha->portnum)) {
+				fcoe_other_function = i + 8;
+				break;
+			}
+		}
+	}
+	/*
+	 * Prepare drv-presence mask based on fcoe functions present.
+	 * However consider only valid physical fcoe function numbers (0-15).
+	 */
+	drv_presence_mask = ~((1 << (ha->portnum)) |
+			((fcoe_other_function == 0xffff) ?
+			 0 : (1 << (fcoe_other_function))));
+
+	/* We are the reset owner iff:
+	 *    - No other protocol drivers present.
+	 *    - This is the lowest among fcoe functions. */
+	if (!(drv_presence & drv_presence_mask) &&
+			(ha->portnum < fcoe_other_function)) {
+		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
+		    "This host is Reset owner.\n");
+		ha->flags.nic_core_reset_owner = 1;
+	}
+}
+
+int
+__qla83xx_set_drv_ack(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t drv_ack;
+
+	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
+	if (rval == QLA_SUCCESS) {
+		drv_ack |= (1 << ha->portnum);
+		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
+	}
+
+	return rval;
+}
+
+int
+qla83xx_set_drv_ack(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+
+	qla83xx_idc_lock(vha, 0);
+	rval = __qla83xx_set_drv_ack(vha);
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
+int
+__qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t drv_ack;
+
+	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
+	if (rval == QLA_SUCCESS) {
+		drv_ack &= ~(1 << ha->portnum);
+		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
+	}
+
+	return rval;
+}
+
+int
+qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+
+	qla83xx_idc_lock(vha, 0);
+	rval = __qla83xx_clear_drv_ack(vha);
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
+const char *
+qla83xx_dev_state_to_string(uint32_t dev_state)
+{
+	switch (dev_state) {
+	case QLA8XXX_DEV_COLD:
+		return "COLD/RE-INIT";
+	case QLA8XXX_DEV_INITIALIZING:
+		return "INITIALIZING";
+	case QLA8XXX_DEV_READY:
+		return "READY";
+	case QLA8XXX_DEV_NEED_RESET:
+		return "NEED RESET";
+	case QLA8XXX_DEV_NEED_QUIESCENT:
+		return "NEED QUIESCENT";
+	case QLA8XXX_DEV_FAILED:
+		return "FAILED";
+	case QLA8XXX_DEV_QUIESCENT:
+		return "QUIESCENT";
+	default:
+		return "Unknown";
+	}
+}
+
+/* Assumes idc-lock always held on entry */
+void
+qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
+{
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t idc_audit_reg = 0, duration_secs = 0;
+
+	switch (audit_type) {
+	case IDC_AUDIT_TIMESTAMP:
+		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
+		idc_audit_reg = (ha->portnum) |
+		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
+		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
+		break;
+
+	case IDC_AUDIT_COMPLETION:
+		duration_secs = ((jiffies_to_msecs(jiffies) -
+		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
+		idc_audit_reg = (ha->portnum) |
+		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
+		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
+		break;
+
+	default:
+		ql_log(ql_log_warn, vha, 0xb078,
+		    "Invalid audit type specified.\n");
+		break;
+	}
+}
+
+/* Assumes idc_lock always held on entry */
+int
+qla83xx_initiating_reset(scsi_qla_host_t *vha)
+{
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t  idc_control, dev_state;
+
+	__qla83xx_get_idc_control(vha, &idc_control);
+	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
+		ql_log(ql_log_info, vha, 0xb080,
+		    "NIC Core reset has been disabled. idc-control=0x%x\n",
+		    idc_control);
+		return QLA_FUNCTION_FAILED;
+	}
+
+	/* Set NEED-RESET iff in READY state and we are the reset-owner */
+	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
+	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
+		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
+		    QLA8XXX_DEV_NEED_RESET);
+		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
+		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
+	} else {
+		const char *state = qla83xx_dev_state_to_string(dev_state);
+		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
+
+		/* SV: XXX: Is timeout required here? */
+		/* Wait for IDC state change READY -> NEED_RESET */
+		while (dev_state == QLA8XXX_DEV_READY) {
+			qla83xx_idc_unlock(vha, 0);
+			msleep(200);
+			qla83xx_idc_lock(vha, 0);
+			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
+		}
+	}
+
+	/* Send IDC ack by writing to drv-ack register */
+	__qla83xx_set_drv_ack(vha);
+
+	return QLA_SUCCESS;
+}
+
+int
+__qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
+{
+	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
+}
+
+int
+qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
+{
+	int rval = QLA_SUCCESS;
+
+	qla83xx_idc_lock(vha, 0);
+	rval = __qla83xx_set_idc_control(vha, idc_control);
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
+int
+__qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
+{
+	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
+}
+
+int
+qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
+{
+	int rval = QLA_SUCCESS;
+
+	qla83xx_idc_lock(vha, 0);
+	rval = __qla83xx_get_idc_control(vha, idc_control);
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
+int
+qla83xx_check_driver_presence(scsi_qla_host_t *vha)
+{
+	uint32_t drv_presence = 0;
+	struct qla_hw_data *ha = vha->hw;
+
+	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
+	if (drv_presence & (1 << ha->portnum))
+		return QLA_SUCCESS;
+	else
+		return QLA_TEST_FAILED;
+}
+
+int
+qla83xx_nic_core_reset(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	struct qla_hw_data *ha = vha->hw;
+
+	ql_dbg(ql_dbg_p3p, vha, 0xb058,
+	    "Entered  %s().\n", __func__);
+
+	if (vha->device_flags & DFLG_DEV_FAILED) {
+		ql_log(ql_log_warn, vha, 0xb059,
+		    "Device in unrecoverable FAILED state.\n");
+		return QLA_FUNCTION_FAILED;
+	}
+
+	qla83xx_idc_lock(vha, 0);
+
+	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
+		ql_log(ql_log_warn, vha, 0xb05a,
+		    "Function=0x%x has been removed from IDC participation.\n",
+		    ha->portnum);
+		rval = QLA_FUNCTION_FAILED;
+		goto exit;
+	}
+
+	qla83xx_reset_ownership(vha);
+
+	rval = qla83xx_initiating_reset(vha);
+
+	/*
+	 * Perform reset if we are the reset-owner,
+	 * else wait till IDC state changes to READY/FAILED.
+	 */
+	if (rval == QLA_SUCCESS) {
+		rval = qla83xx_idc_state_handler(vha);
+
+		if (rval == QLA_SUCCESS)
+			ha->flags.nic_core_hung = 0;
+		__qla83xx_clear_drv_ack(vha);
+	}
+
+exit:
+	qla83xx_idc_unlock(vha, 0);
+
+	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
+
+	return rval;
+}
+
+int
+qla2xxx_mctp_dump(scsi_qla_host_t *vha)
+{
+	struct qla_hw_data *ha = vha->hw;
+	int rval = QLA_FUNCTION_FAILED;
+
+	if (!IS_MCTP_CAPABLE(ha)) {
+		/* This message can be removed from the final version */
+		ql_log(ql_log_info, vha, 0x506d,
+		    "This board is not MCTP capable\n");
+		return rval;
+	}
+
+	if (!ha->mctp_dump) {
+		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
+		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
+
+		if (!ha->mctp_dump) {
+			ql_log(ql_log_warn, vha, 0x506e,
+			    "Failed to allocate memory for mctp dump\n");
+			return rval;
+		}
+	}
+
+#define MCTP_DUMP_STR_ADDR	0x00000000
+	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
+	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
+	if (rval != QLA_SUCCESS) {
+		ql_log(ql_log_warn, vha, 0x506f,
+		    "Failed to capture mctp dump\n");
+	} else {
+		ql_log(ql_log_info, vha, 0x5070,
+		    "Mctp dump capture for host (%ld/%p).\n",
+		    vha->host_no, ha->mctp_dump);
+		ha->mctp_dumped = 1;
+	}
+
+	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
+		ha->flags.nic_core_reset_hdlr_active = 1;
+		rval = qla83xx_restart_nic_firmware(vha);
+		if (rval)
+			/* NIC Core reset failed. */
+			ql_log(ql_log_warn, vha, 0x5071,
+			    "Failed to restart nic firmware\n");
+		else
+			ql_dbg(ql_dbg_p3p, vha, 0xb084,
+			    "Restarted NIC firmware successfully.\n");
+		ha->flags.nic_core_reset_hdlr_active = 0;
+	}
+
+	return rval;
+
+}
+
 /*
-* qla82xx_quiescent_state_cleanup
+* qla2x00_quiesce_io
 * Description: This function will block the new I/Os
 *              Its not aborting any I/Os as context
 *              is not destroyed during quiescence
@@ -3784,20 +4179,20 @@ qla2x00_update_fcports(scsi_qla_host_t *base_vha)
 * return   : void
 */
 void
-qla82xx_quiescent_state_cleanup(scsi_qla_host_t *vha)
+qla2x00_quiesce_io(scsi_qla_host_t *vha)
 {
 	struct qla_hw_data *ha = vha->hw;
 	struct scsi_qla_host *vp;
 
-	ql_dbg(ql_dbg_p3p, vha, 0xb002,
-	    "Performing ISP error recovery - ha=%p.\n", ha);
+	ql_dbg(ql_dbg_dpc, vha, 0x401d,
+	    "Quiescing I/O - ha=%p.\n", ha);
 
 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 		atomic_set(&vha->loop_state, LOOP_DOWN);
 		qla2x00_mark_all_devices_lost(vha, 0);
 		list_for_each_entry(vp, &ha->vp_list, list)
-			qla2x00_mark_all_devices_lost(vha, 0);
+			qla2x00_mark_all_devices_lost(vp, 0);
 	} else {
 		if (!atomic_read(&vha->loop_down_timer))
 			atomic_set(&vha->loop_down_timer,
@@ -3913,6 +4308,14 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
 	if (vha->flags.online) {
 		qla2x00_abort_isp_cleanup(vha);
 
+		if (IS_QLA8031(ha)) {
+			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
+			    "Clearing fcoe driver presence.\n");
+			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
+				ql_dbg(ql_dbg_p3p, vha, 0xb073,
+				    "Error while clearing DRV-Presence.\n");
+		}
+
 		if (unlikely(pci_channel_offline(ha->pdev) &&
 		    ha->flags.pci_channel_io_perm_failure)) {
 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
@@ -4021,6 +4424,13 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
 		}
 		spin_unlock_irqrestore(&ha->vport_slock, flags);
 
+		if (IS_QLA8031(ha)) {
+			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
+			    "Setting back fcoe driver presence.\n");
+			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
+				ql_dbg(ql_dbg_p3p, vha, 0xb074,
+				    "Error while setting DRV-Presence.\n");
+		}
 	} else {
 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
 		       __func__);
@@ -5088,6 +5498,9 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
 		rval = 1;
 	}
 
+	if (IS_T10_PI_CAPABLE(ha))
+		nv->frame_payload_size &= ~7;
+
 	/* Reset Initialization control block */
 	memset(icb, 0, ha->init_cb_size);
 
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index 6e457643c63..c0462c04c88 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -57,6 +57,20 @@ host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
        return fcp;
 }
 
+static inline void
+qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
+{
+	int i;
+
+	if (IS_FWI2_CAPABLE(ha))
+		return;
+
+	for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
+		set_bit(i, ha->loop_id_map);
+	set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
+	set_bit(BROADCAST, ha->loop_id_map);
+}
+
 static inline int
 qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
 {
@@ -69,6 +83,18 @@ qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
 }
 
 static inline void
+qla2x00_clear_loop_id(fc_port_t *fcport) {
+	struct qla_hw_data *ha = fcport->vha->hw;
+
+	if (fcport->loop_id == FC_NO_LOOP_ID ||
+	    qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
+		return;
+
+	clear_bit(fcport->loop_id, ha->loop_id_map);
+	fcport->loop_id = FC_NO_LOOP_ID;
+}
+
+static inline void
 qla2x00_clean_dsd_pool(struct qla_hw_data *ha, srb_t *sp)
 {
 	struct dsd_dma *dsd_ptr, *tdsd_ptr;
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 70dbf53d9e0..03b75263283 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -147,13 +147,6 @@ qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
 	uint8_t	guard = scsi_host_get_guard(cmd->device->host);
 
-	/* We only support T10 DIF right now */
-	if (guard != SHOST_DIX_GUARD_CRC) {
-		ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3007,
-		    "Unsupported guard: %d for cmd=%p.\n", guard, cmd);
-		return 0;
-	}
-
 	/* We always use DIFF Bundling for best performance */
 	*fw_prot_opts = 0;
 
@@ -172,10 +165,11 @@ qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
 		*fw_prot_opts |= PO_MODE_DIF_REMOVE;
 		break;
 	case SCSI_PROT_READ_PASS:
-		*fw_prot_opts |= PO_MODE_DIF_PASS;
-		break;
 	case SCSI_PROT_WRITE_PASS:
-		*fw_prot_opts |= PO_MODE_DIF_PASS;
+		if (guard & SHOST_DIX_GUARD_IP)
+			*fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
+		else
+			*fw_prot_opts |= PO_MODE_DIF_PASS;
 		break;
 	default:	/* Normal Request */
 		*fw_prot_opts |= PO_MODE_DIF_PASS;
@@ -821,7 +815,6 @@ qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
     unsigned int protcnt)
 {
 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
-	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
 
 	switch (scsi_get_prot_type(cmd)) {
 	case SCSI_PROT_DIF_TYPE0:
@@ -891,12 +884,6 @@ qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
 		pkt->ref_tag_mask[3] = 0xff;
 		break;
 	}
-
-	ql_dbg(ql_dbg_io, vha, 0x3009,
-	    "Setting protection Tags: (BIG) ref tag = 0x%x, app tag = 0x%x, "
-	    "prot SG count %d, cmd lba 0x%x, prot_type=%u cmd=%p.\n",
-	    pkt->ref_tag, pkt->app_tag, protcnt, (int)scsi_get_lba(cmd),
-	    scsi_get_prot_type(cmd), cmd);
 }
 
 struct qla2_sgx {
@@ -1068,9 +1055,6 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
 	int	i;
 	uint16_t	used_dsds = tot_dsds;
 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
-	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
-
-	uint8_t		*cp;
 
 	scsi_for_each_sg(cmd, sg, tot_dsds, i) {
 		dma_addr_t	sle_dma;
@@ -1113,19 +1097,12 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
 			cur_dsd = (uint32_t *)next_dsd;
 		}
 		sle_dma = sg_dma_address(sg);
-		ql_dbg(ql_dbg_io, vha, 0x300a,
-		    "sg entry %d - addr=0x%x 0x%x, " "len=%d for cmd=%p.\n",
-		    i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg), cmd);
+
 		*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
 		*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
 		*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
 		avail_dsds--;
 
-		if (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_PASS) {
-			cp = page_address(sg_page(sg)) + sg->offset;
-			ql_dbg(ql_dbg_io, vha, 0x300b,
-			    "User data buffer=%p for cmd=%p.\n", cp, cmd);
-		}
 	}
 	/* Null termination */
 	*cur_dsd++ = 0;
@@ -1148,8 +1125,6 @@ qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
 	struct scsi_cmnd *cmd;
 	uint32_t *cur_dsd = dsd;
 	uint16_t	used_dsds = tot_dsds;
-	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
-	uint8_t		*cp;
 
 	cmd = GET_CMD_SP(sp);
 	scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) {
@@ -1193,23 +1168,11 @@ qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
 			cur_dsd = (uint32_t *)next_dsd;
 		}
 		sle_dma = sg_dma_address(sg);
-		if (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_PASS) {
-			ql_dbg(ql_dbg_io, vha, 0x3027,
-			    "%s(): %p, sg_entry %d - "
-			    "addr=0x%x0x%x, len=%d.\n",
-			    __func__, cur_dsd, i,
-			    LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg));
-		}
+
 		*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
 		*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
 		*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
 
-		if (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_PASS) {
-			cp = page_address(sg_page(sg)) + sg->offset;
-			ql_dbg(ql_dbg_io, vha, 0x3028,
-			    "%s(): Protection Data buffer = %p.\n", __func__,
-			    cp);
-		}
 		avail_dsds--;
 	}
 	/* Null termination */
@@ -1386,6 +1349,16 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
 
 	if (!qla2x00_hba_err_chk_enabled(sp))
 		fw_prot_opts |= 0x10; /* Disable Guard tag checking */
+	/* HBA error checking enabled */
+	else if (IS_PI_UNINIT_CAPABLE(ha)) {
+		if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
+		    || (scsi_get_prot_type(GET_CMD_SP(sp)) ==
+			SCSI_PROT_DIF_TYPE2))
+			fw_prot_opts |= BIT_10;
+		else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
+		    SCSI_PROT_DIF_TYPE3)
+			fw_prot_opts |= BIT_11;
+	}
 
 	if (!bundling) {
 		cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address;
@@ -1858,7 +1831,7 @@ qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp)
 	}
 	if (index == MAX_OUTSTANDING_COMMANDS) {
 		ql_log(ql_log_warn, vha, 0x700b,
-		    "No room on oustanding cmd array.\n");
+		    "No room on outstanding cmd array.\n");
 		goto queuing_error;
 	}
 
@@ -2665,3 +2638,201 @@ done:
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	return rval;
 }
+
+static void
+qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
+				struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
+{
+	uint16_t avail_dsds;
+	uint32_t *cur_dsd;
+	uint32_t req_data_len = 0;
+	uint32_t rsp_data_len = 0;
+	struct scatterlist *sg;
+	int index;
+	int entry_count = 1;
+	struct fc_bsg_job *bsg_job = sp->u.bsg_job;
+
+	/*Update entry type to indicate bidir command */
+	*((uint32_t *)(&cmd_pkt->entry_type)) =
+		__constant_cpu_to_le32(COMMAND_BIDIRECTIONAL);
+
+	/* Set the transfer direction, in this set both flags
+	 * Also set the BD_WRAP_BACK flag, firmware will take care
+	 * assigning DID=SID for outgoing pkts.
+	 */
+	cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
+	cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
+	cmd_pkt->control_flags =
+			__constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
+							BD_WRAP_BACK);
+
+	req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
+	cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
+	cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
+	cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
+
+	vha->bidi_stats.transfer_bytes += req_data_len;
+	vha->bidi_stats.io_count++;
+
+	/* Only one dsd is available for bidirectional IOCB, remaining dsds
+	 * are bundled in continuation iocb
+	 */
+	avail_dsds = 1;
+	cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
+
+	index = 0;
+
+	for_each_sg(bsg_job->request_payload.sg_list, sg,
+				bsg_job->request_payload.sg_cnt, index) {
+		dma_addr_t sle_dma;
+		cont_a64_entry_t *cont_pkt;
+
+		/* Allocate additional continuation packets */
+		if (avail_dsds == 0) {
+			/* Continuation type 1 IOCB can accomodate
+			 * 5 DSDS
+			 */
+			cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
+			cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
+			avail_dsds = 5;
+			entry_count++;
+		}
+		sle_dma = sg_dma_address(sg);
+		*cur_dsd++   = cpu_to_le32(LSD(sle_dma));
+		*cur_dsd++   = cpu_to_le32(MSD(sle_dma));
+		*cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
+		avail_dsds--;
+	}
+	/* For read request DSD will always goes to continuation IOCB
+	 * and follow the write DSD. If there is room on the current IOCB
+	 * then it is added to that IOCB else new continuation IOCB is
+	 * allocated.
+	 */
+	for_each_sg(bsg_job->reply_payload.sg_list, sg,
+				bsg_job->reply_payload.sg_cnt, index) {
+		dma_addr_t sle_dma;
+		cont_a64_entry_t *cont_pkt;
+
+		/* Allocate additional continuation packets */
+		if (avail_dsds == 0) {
+			/* Continuation type 1 IOCB can accomodate
+			 * 5 DSDS
+			 */
+			cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
+			cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
+			avail_dsds = 5;
+			entry_count++;
+		}
+		sle_dma = sg_dma_address(sg);
+		*cur_dsd++   = cpu_to_le32(LSD(sle_dma));
+		*cur_dsd++   = cpu_to_le32(MSD(sle_dma));
+		*cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
+		avail_dsds--;
+	}
+	/* This value should be same as number of IOCB required for this cmd */
+	cmd_pkt->entry_count = entry_count;
+}
+
+int
+qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
+{
+
+	struct qla_hw_data *ha = vha->hw;
+	unsigned long flags;
+	uint32_t handle;
+	uint32_t index;
+	uint16_t req_cnt;
+	uint16_t cnt;
+	uint32_t *clr_ptr;
+	struct cmd_bidir *cmd_pkt = NULL;
+	struct rsp_que *rsp;
+	struct req_que *req;
+	int rval = EXT_STATUS_OK;
+	device_reg_t __iomem *reg = ISP_QUE_REG(ha, vha->req->id);
+
+	rval = QLA_SUCCESS;
+
+	rsp = ha->rsp_q_map[0];
+	req = vha->req;
+
+	/* Send marker if required */
+	if (vha->marker_needed != 0) {
+		if (qla2x00_marker(vha, req,
+			rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
+			return EXT_STATUS_MAILBOX;
+		vha->marker_needed = 0;
+	}
+
+	/* Acquire ring specific lock */
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+
+	/* Check for room in outstanding command list. */
+	handle = req->current_outstanding_cmd;
+	for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+		handle++;
+	if (handle == MAX_OUTSTANDING_COMMANDS)
+		handle = 1;
+	if (!req->outstanding_cmds[handle])
+		break;
+	}
+
+	if (index == MAX_OUTSTANDING_COMMANDS) {
+		rval = EXT_STATUS_BUSY;
+		goto queuing_error;
+	}
+
+	/* Calculate number of IOCB required */
+	req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
+
+	/* Check for room on request queue. */
+	if (req->cnt < req_cnt + 2) {
+		if (ha->mqenable)
+			cnt = RD_REG_DWORD(&reg->isp25mq.req_q_out);
+		else if (IS_QLA82XX(ha))
+			cnt = RD_REG_DWORD(&reg->isp82.req_q_out);
+		else if (IS_FWI2_CAPABLE(ha))
+			cnt = RD_REG_DWORD(&reg->isp24.req_q_out);
+		else
+			cnt = qla2x00_debounce_register(
+					ISP_REQ_Q_OUT(ha, &reg->isp));
+
+		if  (req->ring_index < cnt)
+			req->cnt = cnt - req->ring_index;
+		else
+			req->cnt = req->length -
+				(req->ring_index - cnt);
+	}
+	if (req->cnt < req_cnt + 2) {
+		rval = EXT_STATUS_BUSY;
+		goto queuing_error;
+	}
+
+	cmd_pkt = (struct cmd_bidir *)req->ring_ptr;
+	cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
+
+	/* Zero out remaining portion of packet. */
+	/* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
+	clr_ptr = (uint32_t *)cmd_pkt + 2;
+	memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
+
+	/* Set NPORT-ID  (of vha)*/
+	cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
+	cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
+	cmd_pkt->port_id[1] = vha->d_id.b.area;
+	cmd_pkt->port_id[2] = vha->d_id.b.domain;
+
+	qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
+	cmd_pkt->entry_status = (uint8_t) rsp->id;
+	/* Build command packet. */
+	req->current_outstanding_cmd = handle;
+	req->outstanding_cmds[handle] = sp;
+	sp->handle = handle;
+	req->cnt -= req_cnt;
+
+	/* Send the command to the firmware */
+	wmb();
+	qla2x00_start_iocbs(vha, req);
+queuing_error:
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+	return rval;
+}
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 6f67a9d4998..5733811ce8e 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -294,6 +294,11 @@ qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 	    "%04x %04x %04x %04x %04x %04x %04x.\n",
 	    event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 	    mb[4], mb[5], mb[6]);
+	if ((aen == MBA_IDC_COMPLETE && mb[1] >> 15)) {
+		vha->hw->flags.idc_compl_status = 1;
+		if (vha->hw->notify_dcbx_comp)
+			complete(&vha->hw->dcbx_comp);
+	}
 
 	/* Acknowledgement needed? [Notify && non-zero timeout]. */
 	timeout = (descr >> 8) & 0xf;
@@ -332,6 +337,166 @@ qla2x00_get_link_speed_str(struct qla_hw_data *ha)
 	return link_speed;
 }
 
+void
+qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
+{
+	struct qla_hw_data *ha = vha->hw;
+
+	/*
+	 * 8200 AEN Interpretation:
+	 * mb[0] = AEN code
+	 * mb[1] = AEN Reason code
+	 * mb[2] = LSW of Peg-Halt Status-1 Register
+	 * mb[6] = MSW of Peg-Halt Status-1 Register
+	 * mb[3] = LSW of Peg-Halt Status-2 register
+	 * mb[7] = MSW of Peg-Halt Status-2 register
+	 * mb[4] = IDC Device-State Register value
+	 * mb[5] = IDC Driver-Presence Register value
+	 */
+	ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
+	    "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
+	    mb[0], mb[1], mb[2], mb[6]);
+	ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
+	    "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
+	    "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
+
+	if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
+				IDC_HEARTBEAT_FAILURE)) {
+		ha->flags.nic_core_hung = 1;
+		ql_log(ql_log_warn, vha, 0x5060,
+		    "83XX: F/W Error Reported: Check if reset required.\n");
+
+		if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
+			uint32_t protocol_engine_id, fw_err_code, err_level;
+
+			/*
+			 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
+			 *  - PEG-Halt Status-1 Register:
+			 *	(LSW = mb[2], MSW = mb[6])
+			 *	Bits 0-7   = protocol-engine ID
+			 *	Bits 8-28  = f/w error code
+			 *	Bits 29-31 = Error-level
+			 *	    Error-level 0x1 = Non-Fatal error
+			 *	    Error-level 0x2 = Recoverable Fatal error
+			 *	    Error-level 0x4 = UnRecoverable Fatal error
+			 *  - PEG-Halt Status-2 Register:
+			 *	(LSW = mb[3], MSW = mb[7])
+			 */
+			protocol_engine_id = (mb[2] & 0xff);
+			fw_err_code = (((mb[2] & 0xff00) >> 8) |
+			    ((mb[6] & 0x1fff) << 8));
+			err_level = ((mb[6] & 0xe000) >> 13);
+			ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
+			    "Register: protocol_engine_id=0x%x "
+			    "fw_err_code=0x%x err_level=0x%x.\n",
+			    protocol_engine_id, fw_err_code, err_level);
+			ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
+			    "Register: 0x%x%x.\n", mb[7], mb[3]);
+			if (err_level == ERR_LEVEL_NON_FATAL) {
+				ql_log(ql_log_warn, vha, 0x5063,
+				    "Not a fatal error, f/w has recovered "
+				    "iteself.\n");
+			} else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
+				ql_log(ql_log_fatal, vha, 0x5064,
+				    "Recoverable Fatal error: Chip reset "
+				    "required.\n");
+				qla83xx_schedule_work(vha,
+				    QLA83XX_NIC_CORE_RESET);
+			} else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
+				ql_log(ql_log_fatal, vha, 0x5065,
+				    "Unrecoverable Fatal error: Set FAILED "
+				    "state, reboot required.\n");
+				qla83xx_schedule_work(vha,
+				    QLA83XX_NIC_CORE_UNRECOVERABLE);
+			}
+		}
+
+		if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
+			uint16_t peg_fw_state, nw_interface_link_up;
+			uint16_t nw_interface_signal_detect, sfp_status;
+			uint16_t htbt_counter, htbt_monitor_enable;
+			uint16_t sfp_additonal_info, sfp_multirate;
+			uint16_t sfp_tx_fault, link_speed, dcbx_status;
+
+			/*
+			 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
+			 *  - PEG-to-FC Status Register:
+			 *	(LSW = mb[2], MSW = mb[6])
+			 *	Bits 0-7   = Peg-Firmware state
+			 *	Bit 8      = N/W Interface Link-up
+			 *	Bit 9      = N/W Interface signal detected
+			 *	Bits 10-11 = SFP Status
+			 *	  SFP Status 0x0 = SFP+ transceiver not expected
+			 *	  SFP Status 0x1 = SFP+ transceiver not present
+			 *	  SFP Status 0x2 = SFP+ transceiver invalid
+			 *	  SFP Status 0x3 = SFP+ transceiver present and
+			 *	  valid
+			 *	Bits 12-14 = Heartbeat Counter
+			 *	Bit 15     = Heartbeat Monitor Enable
+			 *	Bits 16-17 = SFP Additional Info
+			 *	  SFP info 0x0 = Unregocnized transceiver for
+			 *	  Ethernet
+			 *	  SFP info 0x1 = SFP+ brand validation failed
+			 *	  SFP info 0x2 = SFP+ speed validation failed
+			 *	  SFP info 0x3 = SFP+ access error
+			 *	Bit 18     = SFP Multirate
+			 *	Bit 19     = SFP Tx Fault
+			 *	Bits 20-22 = Link Speed
+			 *	Bits 23-27 = Reserved
+			 *	Bits 28-30 = DCBX Status
+			 *	  DCBX Status 0x0 = DCBX Disabled
+			 *	  DCBX Status 0x1 = DCBX Enabled
+			 *	  DCBX Status 0x2 = DCBX Exchange error
+			 *	Bit 31     = Reserved
+			 */
+			peg_fw_state = (mb[2] & 0x00ff);
+			nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
+			nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
+			sfp_status = ((mb[2] & 0x0c00) >> 10);
+			htbt_counter = ((mb[2] & 0x7000) >> 12);
+			htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
+			sfp_additonal_info = (mb[6] & 0x0003);
+			sfp_multirate = ((mb[6] & 0x0004) >> 2);
+			sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
+			link_speed = ((mb[6] & 0x0070) >> 4);
+			dcbx_status = ((mb[6] & 0x7000) >> 12);
+
+			ql_log(ql_log_warn, vha, 0x5066,
+			    "Peg-to-Fc Status Register:\n"
+			    "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
+			    "nw_interface_signal_detect=0x%x"
+			    "\nsfp_statis=0x%x.\n ", peg_fw_state,
+			    nw_interface_link_up, nw_interface_signal_detect,
+			    sfp_status);
+			ql_log(ql_log_warn, vha, 0x5067,
+			    "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
+			    "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
+			    htbt_counter, htbt_monitor_enable,
+			    sfp_additonal_info, sfp_multirate);
+			ql_log(ql_log_warn, vha, 0x5068,
+			    "sfp_tx_fault=0x%x, link_state=0x%x, "
+			    "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
+			    dcbx_status);
+
+			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
+		}
+
+		if (mb[1] & IDC_HEARTBEAT_FAILURE) {
+			ql_log(ql_log_warn, vha, 0x5069,
+			    "Heartbeat Failure encountered, chip reset "
+			    "required.\n");
+
+			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
+		}
+	}
+
+	if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
+		ql_log(ql_log_info, vha, 0x506a,
+		    "IDC Device-State changed = 0x%x.\n", mb[4]);
+		qla83xx_schedule_work(vha, MBA_IDC_AEN);
+	}
+}
+
 /**
  * qla2x00_async_event() - Process aynchronous events.
  * @ha: SCSI driver HA context
@@ -681,8 +846,7 @@ skip_rio:
 		 * it.  Otherwise ignore it and Wait for RSCN to come in.
 		 */
 		atomic_set(&vha->loop_down_timer, 0);
-		if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
-		    atomic_read(&vha->loop_state) != LOOP_DEAD) {
+		if (mb[1] != 0xffff || (mb[2] != 0x6 && mb[2] != 0x4)) {
 			ql_dbg(ql_dbg_async, vha, 0x5011,
 			    "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
 			    mb[1], mb[2], mb[3]);
@@ -822,11 +986,28 @@ skip_rio:
 		    "FCF Configuration Error -- %04x %04x %04x.\n",
 		    mb[1], mb[2], mb[3]);
 		break;
-	case MBA_IDC_COMPLETE:
 	case MBA_IDC_NOTIFY:
+		/* See if we need to quiesce any I/O */
+		if (IS_QLA8031(vha->hw))
+			if ((mb[2] & 0x7fff) == MBC_PORT_RESET ||
+			    (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) {
+				set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
+				qla2xxx_wake_dpc(vha);
+			}
+	case MBA_IDC_COMPLETE:
 	case MBA_IDC_TIME_EXT:
-		qla81xx_idc_event(vha, mb[0], mb[1]);
+		if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw))
+			qla81xx_idc_event(vha, mb[0], mb[1]);
 		break;
+
+	case MBA_IDC_AEN:
+		mb[4] = RD_REG_WORD(&reg24->mailbox4);
+		mb[5] = RD_REG_WORD(&reg24->mailbox5);
+		mb[6] = RD_REG_WORD(&reg24->mailbox6);
+		mb[7] = RD_REG_WORD(&reg24->mailbox7);
+		qla83xx_handle_8200_aen(vha, mb);
+		break;
+
 	default:
 		ql_dbg(ql_dbg_async, vha, 0x5057,
 		    "Unknown AEN:%04x %04x %04x %04x\n",
@@ -1414,7 +1595,7 @@ qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
 
 struct scsi_dif_tuple {
 	__be16 guard;       /* Checksum */
-	__be16 app_tag;         /* APPL identifer */
+	__be16 app_tag;         /* APPL identifier */
 	__be32 ref_tag;         /* Target LBA or indirect LBA */
 };
 
@@ -1546,6 +1727,149 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
 	return 1;
 }
 
+static void
+qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
+				  struct req_que *req, uint32_t index)
+{
+	struct qla_hw_data *ha = vha->hw;
+	srb_t *sp;
+	uint16_t	comp_status;
+	uint16_t	scsi_status;
+	uint16_t thread_id;
+	uint32_t rval = EXT_STATUS_OK;
+	struct fc_bsg_job *bsg_job = NULL;
+	sts_entry_t *sts;
+	struct sts_entry_24xx *sts24;
+	sts = (sts_entry_t *) pkt;
+	sts24 = (struct sts_entry_24xx *) pkt;
+
+	/* Validate handle. */
+	if (index >= MAX_OUTSTANDING_COMMANDS) {
+		ql_log(ql_log_warn, vha, 0x70af,
+		    "Invalid SCSI completion handle 0x%x.\n", index);
+		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+		return;
+	}
+
+	sp = req->outstanding_cmds[index];
+	if (sp) {
+		/* Free outstanding command slot. */
+		req->outstanding_cmds[index] = NULL;
+		bsg_job = sp->u.bsg_job;
+	} else {
+		ql_log(ql_log_warn, vha, 0x70b0,
+		    "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
+		    req->id, index);
+
+		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+		return;
+	}
+
+	if (IS_FWI2_CAPABLE(ha)) {
+		comp_status = le16_to_cpu(sts24->comp_status);
+		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
+	} else {
+		comp_status = le16_to_cpu(sts->comp_status);
+		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
+	}
+
+	thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
+	switch (comp_status) {
+	case CS_COMPLETE:
+		if (scsi_status == 0) {
+			bsg_job->reply->reply_payload_rcv_len =
+					bsg_job->reply_payload.payload_len;
+			rval = EXT_STATUS_OK;
+		}
+		goto done;
+
+	case CS_DATA_OVERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b1,
+		    "Command completed with date overrun thread_id=%d\n",
+		    thread_id);
+		rval = EXT_STATUS_DATA_OVERRUN;
+		break;
+
+	case CS_DATA_UNDERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b2,
+		    "Command completed with date underrun thread_id=%d\n",
+		    thread_id);
+		rval = EXT_STATUS_DATA_UNDERRUN;
+		break;
+	case CS_BIDIR_RD_OVERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b3,
+		    "Command completed with read data overrun thread_id=%d\n",
+		    thread_id);
+		rval = EXT_STATUS_DATA_OVERRUN;
+		break;
+
+	case CS_BIDIR_RD_WR_OVERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b4,
+		    "Command completed with read and write data overrun "
+		    "thread_id=%d\n", thread_id);
+		rval = EXT_STATUS_DATA_OVERRUN;
+		break;
+
+	case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b5,
+		    "Command completed with read data over and write data "
+		    "underrun thread_id=%d\n", thread_id);
+		rval = EXT_STATUS_DATA_OVERRUN;
+		break;
+
+	case CS_BIDIR_RD_UNDERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b6,
+		    "Command completed with read data data underrun "
+		    "thread_id=%d\n", thread_id);
+		rval = EXT_STATUS_DATA_UNDERRUN;
+		break;
+
+	case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b7,
+		    "Command completed with read data under and write data "
+		    "overrun thread_id=%d\n", thread_id);
+		rval = EXT_STATUS_DATA_UNDERRUN;
+		break;
+
+	case CS_BIDIR_RD_WR_UNDERRUN:
+		ql_dbg(ql_dbg_user, vha, 0x70b8,
+		    "Command completed with read and write data underrun "
+		    "thread_id=%d\n", thread_id);
+		rval = EXT_STATUS_DATA_UNDERRUN;
+		break;
+
+	case CS_BIDIR_DMA:
+		ql_dbg(ql_dbg_user, vha, 0x70b9,
+		    "Command completed with data DMA error thread_id=%d\n",
+		    thread_id);
+		rval = EXT_STATUS_DMA_ERR;
+		break;
+
+	case CS_TIMEOUT:
+		ql_dbg(ql_dbg_user, vha, 0x70ba,
+		    "Command completed with timeout thread_id=%d\n",
+		    thread_id);
+		rval = EXT_STATUS_TIMEOUT;
+		break;
+	default:
+		ql_dbg(ql_dbg_user, vha, 0x70bb,
+		    "Command completed with completion status=0x%x "
+		    "thread_id=%d\n", comp_status, thread_id);
+		rval = EXT_STATUS_ERR;
+		break;
+	}
+		bsg_job->reply->reply_payload_rcv_len = 0;
+
+done:
+	/* Return the vendor specific reply to API */
+	bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
+	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+	/* Always return DID_OK, bsg will send the vendor specific response
+	 * in this case only */
+	sp->done(vha, sp, (DID_OK << 6));
+
+}
+
 /**
  * qla2x00_status_entry() - Process a Status IOCB entry.
  * @ha: SCSI driver HA context
@@ -1573,12 +1897,14 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 	struct req_que *req;
 	int logit = 1;
 	int res = 0;
+	uint16_t state_flags = 0;
 
 	sts = (sts_entry_t *) pkt;
 	sts24 = (struct sts_entry_24xx *) pkt;
 	if (IS_FWI2_CAPABLE(ha)) {
 		comp_status = le16_to_cpu(sts24->comp_status);
 		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
+		state_flags = le16_to_cpu(sts24->state_flags);
 	} else {
 		comp_status = le16_to_cpu(sts->comp_status);
 		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
@@ -1587,17 +1913,9 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 	que = MSW(sts->handle);
 	req = ha->req_q_map[que];
 
-	/* Fast path completion. */
-	if (comp_status == CS_COMPLETE && scsi_status == 0) {
-		qla2x00_process_completed_request(vha, req, handle);
-
-		return;
-	}
-
 	/* Validate handle. */
 	if (handle < MAX_OUTSTANDING_COMMANDS) {
 		sp = req->outstanding_cmds[handle];
-		req->outstanding_cmds[handle] = NULL;
 	} else
 		sp = NULL;
 
@@ -1612,6 +1930,20 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 		qla2xxx_wake_dpc(vha);
 		return;
 	}
+
+	if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
+		qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
+		return;
+	}
+
+	/* Fast path completion. */
+	if (comp_status == CS_COMPLETE && scsi_status == 0) {
+		qla2x00_process_completed_request(vha, req, handle);
+
+		return;
+	}
+
+	req->outstanding_cmds[handle] = NULL;
 	cp = GET_CMD_SP(sp);
 	if (cp == NULL) {
 		ql_dbg(ql_dbg_io, vha, 0x3018,
@@ -1830,7 +2162,21 @@ check_scsi_status:
 
 	case CS_DIF_ERROR:
 		logit = qla2x00_handle_dif_error(sp, sts24);
+		res = cp->result;
 		break;
+
+	case CS_TRANSPORT:
+		res = DID_ERROR << 16;
+
+		if (!IS_PI_SPLIT_DET_CAPABLE(ha))
+			break;
+
+		if (state_flags & BIT_4)
+			scmd_printk(KERN_WARNING, cp,
+			    "Unsupported device '%s' found.\n",
+			    cp->device->vendor);
+		break;
+
 	default:
 		res = DID_ERROR << 16;
 		break;
@@ -2150,7 +2496,7 @@ qla24xx_intr_handler(int irq, void *dev_id)
 	unsigned long	iter;
 	uint32_t	stat;
 	uint32_t	hccr;
-	uint16_t	mb[4];
+	uint16_t	mb[8];
 	struct rsp_que *rsp;
 	unsigned long	flags;
 
@@ -2191,29 +2537,29 @@ qla24xx_intr_handler(int irq, void *dev_id)
 			break;
 
 		switch (stat & 0xff) {
-		case 0x1:
-		case 0x2:
-		case 0x10:
-		case 0x11:
+		case INTR_ROM_MB_SUCCESS:
+		case INTR_ROM_MB_FAILED:
+		case INTR_MB_SUCCESS:
+		case INTR_MB_FAILED:
 			qla24xx_mbx_completion(vha, MSW(stat));
 			status |= MBX_INTERRUPT;
 
 			break;
-		case 0x12:
+		case INTR_ASYNC_EVENT:
 			mb[0] = MSW(stat);
 			mb[1] = RD_REG_WORD(&reg->mailbox1);
 			mb[2] = RD_REG_WORD(&reg->mailbox2);
 			mb[3] = RD_REG_WORD(&reg->mailbox3);
 			qla2x00_async_event(vha, rsp, mb);
 			break;
-		case 0x13:
-		case 0x14:
+		case INTR_RSP_QUE_UPDATE:
+		case INTR_RSP_QUE_UPDATE_83XX:
 			qla24xx_process_response_queue(vha, rsp);
 			break;
-		case 0x1C: /* ATIO queue updated */
+		case INTR_ATIO_QUE_UPDATE:
 			qlt_24xx_process_atio_queue(vha);
 			break;
-		case 0x1D: /* ATIO and response queues updated */
+		case INTR_ATIO_RSP_QUE_UPDATE:
 			qlt_24xx_process_atio_queue(vha);
 			qla24xx_process_response_queue(vha, rsp);
 			break;
@@ -2224,6 +2570,8 @@ qla24xx_intr_handler(int irq, void *dev_id)
 		}
 		WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
 		RD_REG_DWORD_RELAXED(&reg->hccr);
+		if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
+			ndelay(3500);
 	}
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
@@ -2306,7 +2654,7 @@ qla24xx_msix_default(int irq, void *dev_id)
 	int		status;
 	uint32_t	stat;
 	uint32_t	hccr;
-	uint16_t	mb[4];
+	uint16_t	mb[8];
 	unsigned long flags;
 
 	rsp = (struct rsp_que *) dev_id;
@@ -2342,29 +2690,29 @@ qla24xx_msix_default(int irq, void *dev_id)
 			break;
 
 		switch (stat & 0xff) {
-		case 0x1:
-		case 0x2:
-		case 0x10:
-		case 0x11:
+		case INTR_ROM_MB_SUCCESS:
+		case INTR_ROM_MB_FAILED:
+		case INTR_MB_SUCCESS:
+		case INTR_MB_FAILED:
 			qla24xx_mbx_completion(vha, MSW(stat));
 			status |= MBX_INTERRUPT;
 
 			break;
-		case 0x12:
+		case INTR_ASYNC_EVENT:
 			mb[0] = MSW(stat);
 			mb[1] = RD_REG_WORD(&reg->mailbox1);
 			mb[2] = RD_REG_WORD(&reg->mailbox2);
 			mb[3] = RD_REG_WORD(&reg->mailbox3);
 			qla2x00_async_event(vha, rsp, mb);
 			break;
-		case 0x13:
-		case 0x14:
+		case INTR_RSP_QUE_UPDATE:
+		case INTR_RSP_QUE_UPDATE_83XX:
 			qla24xx_process_response_queue(vha, rsp);
 			break;
-		case 0x1C: /* ATIO queue updated */
+		case INTR_ATIO_QUE_UPDATE:
 			qlt_24xx_process_atio_queue(vha);
 			break;
-		case 0x1D: /* ATIO and response queues updated */
+		case INTR_ATIO_RSP_QUE_UPDATE:
 			qlt_24xx_process_atio_queue(vha);
 			qla24xx_process_response_queue(vha, rsp);
 			break;
@@ -2570,7 +2918,7 @@ qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
 skip_msix:
 
 	if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
-	    !IS_QLA8001(ha))
+	    !IS_QLA8001(ha) && !IS_QLA82XX(ha))
 		goto skip_msi;
 
 	ret = pci_enable_msi(ha->pdev);
@@ -2581,6 +2929,11 @@ skip_msix:
 	} else
 		ql_log(ql_log_warn, vha, 0x0039,
 		    "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
+
+	/* Skip INTx on ISP82xx. */
+	if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
+		return QLA_FUNCTION_FAILED;
+
 skip_msi:
 
 	ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
@@ -2595,21 +2948,9 @@ skip_msi:
 
 clear_risc_ints:
 
-	/*
-	 * FIXME: Noted that 8014s were being dropped during NK testing.
-	 * Timing deltas during MSI-X/INTa transitions?
-	 */
-	if (IS_QLA81XX(ha) || IS_QLA82XX(ha) || IS_QLA83XX(ha))
-		goto fail;
 	spin_lock_irq(&ha->hardware_lock);
-	if (IS_FWI2_CAPABLE(ha)) {
-		WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
-		WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
-	} else {
+	if (!IS_FWI2_CAPABLE(ha))
 		WRT_REG_WORD(&reg->isp.semaphore, 0);
-		WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
-		WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
-	}
 	spin_unlock_irq(&ha->hardware_lock);
 
 fail:
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index d5ce92c0a8f..18c509fae55 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -75,7 +75,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
 		return QLA_FUNCTION_TIMEOUT;
 	}
 
-	if (ha->flags.isp82xx_fw_hung) {
+	if (IS_QLA82XX(ha) && ha->flags.isp82xx_fw_hung) {
 		/* Setting Link-Down error */
 		mcp->mb[0] = MBS_LINK_DOWN_ERROR;
 		ql_log(ql_log_warn, vha, 0x1004,
@@ -232,7 +232,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
 		ha->flags.mbox_int = 0;
 		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
 
-		if (ha->flags.isp82xx_fw_hung) {
+		if ((IS_QLA82XX(ha) && ha->flags.isp82xx_fw_hung)) {
 			ha->flags.mbox_busy = 0;
 			/* Setting Link-Down error */
 			mcp->mb[0] = MBS_LINK_DOWN_ERROR;
@@ -369,7 +369,7 @@ premature_exit:
 
 mbx_done:
 	if (rval) {
-		ql_dbg(ql_dbg_mbx, base_vha, 0x1020,
+		ql_log(ql_log_warn, base_vha, 0x1020,
 		    "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n",
 		    mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
 	} else {
@@ -533,7 +533,7 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha)
 	mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
 	if (IS_QLA81XX(vha->hw) || IS_QLA8031(ha))
 		mcp->in_mb |= MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8;
-	if (IS_QLA83XX(vha->hw))
+	if (IS_FWI2_CAPABLE(ha))
 		mcp->in_mb |= MBX_17|MBX_16|MBX_15;
 	mcp->flags = 0;
 	mcp->tov = MBX_TOV_SECONDS;
@@ -559,18 +559,16 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha)
 		ha->phy_version[1] = mcp->mb[9] >> 8;
 		ha->phy_version[2] = mcp->mb[9] & 0xff;
 	}
-	if (IS_QLA83XX(ha)) {
-		if (mcp->mb[6] & BIT_15) {
-			ha->fw_attributes_h = mcp->mb[15];
-			ha->fw_attributes_ext[0] = mcp->mb[16];
-			ha->fw_attributes_ext[1] = mcp->mb[17];
-			ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1139,
-			    "%s: FW_attributes Upper: 0x%x, Lower: 0x%x.\n",
-			    __func__, mcp->mb[15], mcp->mb[6]);
-		} else
-			ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x112f,
-			    "%s: FwAttributes [Upper]  invalid, MB6:%04x\n",
-			    __func__, mcp->mb[6]);
+	if (IS_FWI2_CAPABLE(ha)) {
+		ha->fw_attributes_h = mcp->mb[15];
+		ha->fw_attributes_ext[0] = mcp->mb[16];
+		ha->fw_attributes_ext[1] = mcp->mb[17];
+		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1139,
+		    "%s: FW_attributes Upper: 0x%x, Lower: 0x%x.\n",
+		    __func__, mcp->mb[15], mcp->mb[6]);
+		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x112f,
+		    "%s: Ext_FwAttributes Upper: 0x%x, Lower: 0x%x.\n",
+		    __func__, mcp->mb[17], mcp->mb[16]);
 	}
 
 failed:
@@ -3408,7 +3406,6 @@ qla2x00_dump_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr,
 
 	return rval;
 }
-
 /* 84XX Support **************************************************************/
 
 struct cs84xx_mgmt_cmd {
@@ -4428,7 +4425,8 @@ qla2x00_get_thermal_temp(scsi_qla_host_t *vha, uint16_t *temp, uint16_t *frac)
 	    "Entered %s.\n", __func__);
 
 	/* Integer part */
-	rval = qla2x00_read_sfp(vha, 0, &byte, 0x98, 0x01, 1, BIT_13|BIT_0);
+	rval = qla2x00_read_sfp(vha, 0, &byte, 0x98, 0x01, 1,
+		BIT_13|BIT_12|BIT_0);
 	if (rval != QLA_SUCCESS) {
 		ql_dbg(ql_dbg_mbx, vha, 0x10c9, "Failed=%x.\n", rval);
 		ha->flags.thermal_supported = 0;
@@ -4437,7 +4435,8 @@ qla2x00_get_thermal_temp(scsi_qla_host_t *vha, uint16_t *temp, uint16_t *frac)
 	*temp = byte;
 
 	/* Fraction part */
-	rval = qla2x00_read_sfp(vha, 0, &byte, 0x98, 0x10, 1, BIT_13|BIT_0);
+	rval = qla2x00_read_sfp(vha, 0, &byte, 0x98, 0x10, 1,
+		BIT_13|BIT_12|BIT_0);
 	if (rval != QLA_SUCCESS) {
 		ql_dbg(ql_dbg_mbx, vha, 0x1019, "Failed=%x.\n", rval);
 		ha->flags.thermal_supported = 0;
@@ -4741,7 +4740,7 @@ qla82xx_mbx_beacon_ctl(scsi_qla_host_t *vha, int enable)
 }
 
 int
-qla83xx_write_remote_reg(scsi_qla_host_t *vha, uint32_t reg, uint32_t data)
+qla83xx_wr_reg(scsi_qla_host_t *vha, uint32_t reg, uint32_t data)
 {
 	int rval;
 	struct qla_hw_data *ha = vha->hw;
@@ -4814,3 +4813,186 @@ qla2x00_port_logout(scsi_qla_host_t *vha, struct fc_port *fcport)
 	return rval;
 }
 
+int
+qla83xx_rd_reg(scsi_qla_host_t *vha, uint32_t reg, uint32_t *data)
+{
+	int rval;
+	mbx_cmd_t mc;
+	mbx_cmd_t *mcp = &mc;
+	struct qla_hw_data *ha = vha->hw;
+	unsigned long retry_max_time = jiffies + (2 * HZ);
+
+	if (!IS_QLA83XX(ha))
+		return QLA_FUNCTION_FAILED;
+
+	ql_dbg(ql_dbg_mbx, vha, 0x114b, "Entered %s.\n", __func__);
+
+retry_rd_reg:
+	mcp->mb[0] = MBC_READ_REMOTE_REG;
+	mcp->mb[1] = LSW(reg);
+	mcp->mb[2] = MSW(reg);
+	mcp->out_mb = MBX_2|MBX_1|MBX_0;
+	mcp->in_mb = MBX_4|MBX_3|MBX_1|MBX_0;
+	mcp->tov = MBX_TOV_SECONDS;
+	mcp->flags = 0;
+	rval = qla2x00_mailbox_command(vha, mcp);
+
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_mbx, vha, 0x114c,
+		    "Failed=%x mb[0]=%x mb[1]=%x.\n",
+		    rval, mcp->mb[0], mcp->mb[1]);
+	} else {
+		*data = (mcp->mb[3] | (mcp->mb[4] << 16));
+		if (*data == QLA8XXX_BAD_VALUE) {
+			/*
+			 * During soft-reset CAMRAM register reads might
+			 * return 0xbad0bad0. So retry for MAX of 2 sec
+			 * while reading camram registers.
+			 */
+			if (time_after(jiffies, retry_max_time)) {
+				ql_dbg(ql_dbg_mbx, vha, 0x1141,
+				    "Failure to read CAMRAM register. "
+				    "data=0x%x.\n", *data);
+				return QLA_FUNCTION_FAILED;
+			}
+			msleep(100);
+			goto retry_rd_reg;
+		}
+		ql_dbg(ql_dbg_mbx, vha, 0x1142, "Done %s.\n", __func__);
+	}
+
+	return rval;
+}
+
+int
+qla83xx_restart_nic_firmware(scsi_qla_host_t *vha)
+{
+	int rval;
+	mbx_cmd_t mc;
+	mbx_cmd_t *mcp = &mc;
+	struct qla_hw_data *ha = vha->hw;
+
+	if (!IS_QLA83XX(ha))
+		return QLA_FUNCTION_FAILED;
+
+	ql_dbg(ql_dbg_mbx, vha, 0x1143, "Entered %s.\n", __func__);
+
+	mcp->mb[0] = MBC_RESTART_NIC_FIRMWARE;
+	mcp->out_mb = MBX_0;
+	mcp->in_mb = MBX_1|MBX_0;
+	mcp->tov = MBX_TOV_SECONDS;
+	mcp->flags = 0;
+	rval = qla2x00_mailbox_command(vha, mcp);
+
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_mbx, vha, 0x1144,
+		    "Failed=%x mb[0]=%x mb[1]=%x.\n",
+		    rval, mcp->mb[0], mcp->mb[1]);
+		ha->isp_ops->fw_dump(vha, 0);
+	} else {
+		ql_dbg(ql_dbg_mbx, vha, 0x1145, "Done %s.\n", __func__);
+	}
+
+	return rval;
+}
+
+int
+qla83xx_access_control(scsi_qla_host_t *vha, uint16_t options,
+	uint32_t start_addr, uint32_t end_addr, uint16_t *sector_size)
+{
+	int rval;
+	mbx_cmd_t mc;
+	mbx_cmd_t *mcp = &mc;
+	uint8_t subcode = (uint8_t)options;
+	struct qla_hw_data *ha = vha->hw;
+
+	if (!IS_QLA8031(ha))
+		return QLA_FUNCTION_FAILED;
+
+	ql_dbg(ql_dbg_mbx, vha, 0x1146, "Entered %s.\n", __func__);
+
+	mcp->mb[0] = MBC_SET_ACCESS_CONTROL;
+	mcp->mb[1] = options;
+	mcp->out_mb = MBX_1|MBX_0;
+	if (subcode & BIT_2) {
+		mcp->mb[2] = LSW(start_addr);
+		mcp->mb[3] = MSW(start_addr);
+		mcp->mb[4] = LSW(end_addr);
+		mcp->mb[5] = MSW(end_addr);
+		mcp->out_mb |= MBX_5|MBX_4|MBX_3|MBX_2;
+	}
+	mcp->in_mb = MBX_2|MBX_1|MBX_0;
+	if (!(subcode & (BIT_2 | BIT_5)))
+		mcp->in_mb |= MBX_4|MBX_3;
+	mcp->tov = MBX_TOV_SECONDS;
+	mcp->flags = 0;
+	rval = qla2x00_mailbox_command(vha, mcp);
+
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_mbx, vha, 0x1147,
+		    "Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[3]=%x mb[4]=%x.\n",
+		    rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
+		    mcp->mb[4]);
+		ha->isp_ops->fw_dump(vha, 0);
+	} else {
+		if (subcode & BIT_5)
+			*sector_size = mcp->mb[1];
+		else if (subcode & (BIT_6 | BIT_7)) {
+			ql_dbg(ql_dbg_mbx, vha, 0x1148,
+			    "Driver-lock id=%x%x", mcp->mb[4], mcp->mb[3]);
+		} else if (subcode & (BIT_3 | BIT_4)) {
+			ql_dbg(ql_dbg_mbx, vha, 0x1149,
+			    "Flash-lock id=%x%x", mcp->mb[4], mcp->mb[3]);
+		}
+		ql_dbg(ql_dbg_mbx, vha, 0x114a, "Done %s.\n", __func__);
+	}
+
+	return rval;
+}
+
+int
+qla2x00_dump_mctp_data(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr,
+	uint32_t size)
+{
+	int rval;
+	mbx_cmd_t mc;
+	mbx_cmd_t *mcp = &mc;
+
+	if (!IS_MCTP_CAPABLE(vha->hw))
+		return QLA_FUNCTION_FAILED;
+
+	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x114f,
+	    "Entered %s.\n", __func__);
+
+	mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED;
+	mcp->mb[1] = LSW(addr);
+	mcp->mb[2] = MSW(req_dma);
+	mcp->mb[3] = LSW(req_dma);
+	mcp->mb[4] = MSW(size);
+	mcp->mb[5] = LSW(size);
+	mcp->mb[6] = MSW(MSD(req_dma));
+	mcp->mb[7] = LSW(MSD(req_dma));
+	mcp->mb[8] = MSW(addr);
+	/* Setting RAM ID to valid */
+	mcp->mb[10] |= BIT_7;
+	/* For MCTP RAM ID is 0x40 */
+	mcp->mb[10] |= 0x40;
+
+	mcp->out_mb |= MBX_10|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|
+	    MBX_0;
+
+	mcp->in_mb = MBX_0;
+	mcp->tov = MBX_TOV_SECONDS;
+	mcp->flags = 0;
+	rval = qla2x00_mailbox_command(vha, mcp);
+
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_mbx, vha, 0x114e,
+		    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
+	} else {
+		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x114d,
+		    "Done %s.\n", __func__);
+	}
+
+	return rval;
+}
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 3e8b32419e6..bd4708a422c 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -476,7 +476,6 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 
 	vha->req = base_vha->req;
 	host->can_queue = base_vha->req->length + 128;
-	host->this_id = 255;
 	host->cmd_per_lun = 3;
 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
 		host->max_cmd_len = 32;
@@ -643,7 +642,7 @@ qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
 			&req->dma, GFP_KERNEL);
 	if (req->ring == NULL) {
 		ql_log(ql_log_fatal, base_vha, 0x00da,
-		    "Failed to allocte memory for request_ring.\n");
+		    "Failed to allocate memory for request_ring.\n");
 		goto que_failed;
 	}
 
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 9ce3a8f8754..14cd361742f 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -1612,25 +1612,6 @@ qla82xx_get_fw_offs(struct qla_hw_data *ha)
 }
 
 /* PCI related functions */
-char *
-qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
-{
-	int pcie_reg;
-	struct qla_hw_data *ha = vha->hw;
-	char lwstr[6];
-	uint16_t lnk;
-
-	pcie_reg = pci_pcie_cap(ha->pdev);
-	pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
-	ha->link_width = (lnk >> 4) & 0x3f;
-
-	strcpy(str, "PCIe (");
-	strcat(str, "2.5Gb/s ");
-	snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
-	strcat(str, lwstr);
-	return str;
-}
-
 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
 {
 	unsigned long val = 0;
@@ -2322,6 +2303,29 @@ void qla82xx_init_flags(struct qla_hw_data *ha)
 }
 
 inline void
+qla82xx_set_idc_version(scsi_qla_host_t *vha)
+{
+	int idc_ver;
+	uint32_t drv_active;
+	struct qla_hw_data *ha = vha->hw;
+
+	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
+	if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
+		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
+		    QLA82XX_IDC_VERSION);
+		ql_log(ql_log_info, vha, 0xb082,
+		    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
+	} else {
+		idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
+		if (idc_ver != QLA82XX_IDC_VERSION)
+			ql_log(ql_log_info, vha, 0xb083,
+			    "qla2xxx driver IDC version %d is not compatible "
+			    "with IDC version %d of the other drivers\n",
+			    QLA82XX_IDC_VERSION, idc_ver);
+	}
+}
+
+inline void
 qla82xx_set_drv_active(scsi_qla_host_t *vha)
 {
 	uint32_t drv_active;
@@ -2355,7 +2359,7 @@ qla82xx_need_reset(struct qla_hw_data *ha)
 	uint32_t drv_state;
 	int rval;
 
-	if (ha->flags.isp82xx_reset_owner)
+	if (ha->flags.nic_core_reset_owner)
 		return 1;
 	else {
 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
@@ -2497,7 +2501,6 @@ fw_load_failed:
 int
 qla82xx_start_firmware(scsi_qla_host_t *vha)
 {
-	int           pcie_cap;
 	uint16_t      lnk;
 	struct qla_hw_data *ha = vha->hw;
 
@@ -2528,8 +2531,7 @@ qla82xx_start_firmware(scsi_qla_host_t *vha)
 	}
 
 	/* Negotiated Link width */
-	pcie_cap = pci_pcie_cap(ha->pdev);
-	pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
+	pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
 	ha->link_width = (lnk >> 4) & 0x3f;
 
 	/* Synchronize with Receive peg */
@@ -2864,7 +2866,7 @@ qla82xx_device_bootstrap(scsi_qla_host_t *vha)
 		timeout = msleep_interruptible(200);
 		if (timeout) {
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-				QLA82XX_DEV_FAILED);
+				QLA8XXX_DEV_FAILED);
 			return QLA_FUNCTION_FAILED;
 		}
 
@@ -2895,10 +2897,7 @@ dev_initialize:
 	/* set to DEV_INITIALIZING */
 	ql_log(ql_log_info, vha, 0x009e,
 	    "HW State: INITIALIZING.\n");
-	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
-
-	/* Driver that sets device state to initializating sets IDC version */
-	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
+	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
 
 	qla82xx_idc_unlock(ha);
 	rval = qla82xx_start_firmware(vha);
@@ -2908,14 +2907,14 @@ dev_initialize:
 		ql_log(ql_log_fatal, vha, 0x00ad,
 		    "HW State: FAILED.\n");
 		qla82xx_clear_drv_active(ha);
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
+		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
 		return rval;
 	}
 
 dev_ready:
 	ql_log(ql_log_info, vha, 0x00ae,
 	    "HW State: READY.\n");
-	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
+	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
 
 	return QLA_SUCCESS;
 }
@@ -2939,7 +2938,7 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
 
 	if (vha->flags.online) {
 		/*Block any further I/O and wait for pending cmnds to complete*/
-		qla82xx_quiescent_state_cleanup(vha);
+		qla2x00_quiesce_io(vha);
 	}
 
 	/* Set the quiescence ready bit */
@@ -2964,7 +2963,7 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
 			    "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
 			    drv_active, drv_state);
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_READY);
+			    QLA8XXX_DEV_READY);
 			ql_log(ql_log_info, vha, 0xb025,
 			    "HW State: DEV_READY.\n");
 			qla82xx_idc_unlock(ha);
@@ -2985,10 +2984,10 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
 	}
 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	/* everyone acked so set the state to DEV_QUIESCENCE */
-	if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
+	if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
 		ql_log(ql_log_info, vha, 0xb026,
 		    "HW State: DEV_QUIESCENT.\n");
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
+		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
 	}
 }
 
@@ -3018,8 +3017,8 @@ qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
 	return dev_state;
 }
 
-static void
-qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
+void
+qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
 {
 	struct qla_hw_data *ha = vha->hw;
 
@@ -3027,9 +3026,10 @@ qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
 	ql_log(ql_log_fatal, vha, 0x00b8,
 	    "Disabling the board.\n");
 
-	qla82xx_idc_lock(ha);
-	qla82xx_clear_drv_active(ha);
-	qla82xx_idc_unlock(ha);
+	if (IS_QLA82XX(ha)) {
+		qla82xx_clear_drv_active(ha);
+		qla82xx_idc_unlock(ha);
+	}
 
 	/* Set DEV_FAILED flag to disable timer */
 	vha->device_flags |= DFLG_DEV_FAILED;
@@ -3068,7 +3068,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	}
 
 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-	if (!ha->flags.isp82xx_reset_owner) {
+	if (!ha->flags.nic_core_reset_owner) {
 		ql_dbg(ql_dbg_p3p, vha, 0xb028,
 		    "reset_acknowledged by 0x%x\n", ha->portnum);
 		qla82xx_set_rst_ready(ha);
@@ -3080,7 +3080,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	}
 
 	/* wait for 10 seconds for reset ack from all functions */
-	reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
+	reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
 
 	drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
@@ -3092,7 +3092,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	    drv_state, drv_active, dev_state, active_mask);
 
 	while (drv_state != drv_active &&
-	    dev_state != QLA82XX_DEV_INITIALIZING) {
+	    dev_state != QLA8XXX_DEV_INITIALIZING) {
 		if (time_after_eq(jiffies, reset_timeout)) {
 			ql_log(ql_log_warn, vha, 0x00b5,
 			    "Reset timeout.\n");
@@ -3103,7 +3103,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 		qla82xx_idc_lock(ha);
 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-		if (ha->flags.isp82xx_reset_owner)
+		if (ha->flags.nic_core_reset_owner)
 			drv_active &= active_mask;
 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	}
@@ -3119,11 +3119,11 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
 
 	/* Force to DEV_COLD unless someone else is starting a reset */
-	if (dev_state != QLA82XX_DEV_INITIALIZING &&
-	    dev_state != QLA82XX_DEV_COLD) {
+	if (dev_state != QLA8XXX_DEV_INITIALIZING &&
+	    dev_state != QLA8XXX_DEV_COLD) {
 		ql_log(ql_log_info, vha, 0x00b7,
 		    "HW State: COLD/RE-INIT.\n");
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
+		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
 		qla82xx_set_rst_ready(ha);
 		if (ql2xmdenable) {
 			if (qla82xx_md_collect(vha))
@@ -3230,8 +3230,10 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 	int loopcount = 0;
 
 	qla82xx_idc_lock(ha);
-	if (!vha->flags.init_done)
+	if (!vha->flags.init_done) {
 		qla82xx_set_drv_active(vha);
+		qla82xx_set_idc_version(vha);
+	}
 
 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	old_dev_state = dev_state;
@@ -3241,7 +3243,7 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 	    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
 
 	/* wait for 30 seconds for device to go ready */
-	dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
+	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
 
 	while (1) {
 
@@ -3265,18 +3267,18 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 		}
 
 		switch (dev_state) {
-		case QLA82XX_DEV_READY:
-			ha->flags.isp82xx_reset_owner = 0;
-			goto exit;
-		case QLA82XX_DEV_COLD:
+		case QLA8XXX_DEV_READY:
+			ha->flags.nic_core_reset_owner = 0;
+			goto rel_lock;
+		case QLA8XXX_DEV_COLD:
 			rval = qla82xx_device_bootstrap(vha);
 			break;
-		case QLA82XX_DEV_INITIALIZING:
+		case QLA8XXX_DEV_INITIALIZING:
 			qla82xx_idc_unlock(ha);
 			msleep(1000);
 			qla82xx_idc_lock(ha);
 			break;
-		case QLA82XX_DEV_NEED_RESET:
+		case QLA8XXX_DEV_NEED_RESET:
 			if (!ql2xdontresethba)
 				qla82xx_need_reset_handler(vha);
 			else {
@@ -3285,31 +3287,31 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 				qla82xx_idc_lock(ha);
 			}
 			dev_init_timeout = jiffies +
-			    (ha->nx_dev_init_timeout * HZ);
+			    (ha->fcoe_dev_init_timeout * HZ);
 			break;
-		case QLA82XX_DEV_NEED_QUIESCENT:
+		case QLA8XXX_DEV_NEED_QUIESCENT:
 			qla82xx_need_qsnt_handler(vha);
 			/* Reset timeout value after quiescence handler */
-			dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
+			dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
 							 * HZ);
 			break;
-		case QLA82XX_DEV_QUIESCENT:
+		case QLA8XXX_DEV_QUIESCENT:
 			/* Owner will exit and other will wait for the state
 			 * to get changed
 			 */
 			if (ha->flags.quiesce_owner)
-				goto exit;
+				goto rel_lock;
 
 			qla82xx_idc_unlock(ha);
 			msleep(1000);
 			qla82xx_idc_lock(ha);
 
 			/* Reset timeout value after quiescence handler */
-			dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
+			dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
 							 * HZ);
 			break;
-		case QLA82XX_DEV_FAILED:
-			qla82xx_dev_failed_handler(vha);
+		case QLA8XXX_DEV_FAILED:
+			qla8xxx_dev_failed_handler(vha);
 			rval = QLA_FUNCTION_FAILED;
 			goto exit;
 		default:
@@ -3319,8 +3321,9 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 		}
 		loopcount++;
 	}
-exit:
+rel_lock:
 	qla82xx_idc_unlock(ha);
+exit:
 	return rval;
 }
 
@@ -3368,22 +3371,30 @@ void qla82xx_watchdog(scsi_qla_host_t *vha)
 	struct qla_hw_data *ha = vha->hw;
 
 	/* don't poll if reset is going on */
-	if (!ha->flags.isp82xx_reset_hdlr_active) {
+	if (!ha->flags.nic_core_reset_hdlr_active) {
 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 		if (qla82xx_check_temp(vha)) {
 			set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
 			ha->flags.isp82xx_fw_hung = 1;
 			qla82xx_clear_pending_mbx(vha);
-		} else if (dev_state == QLA82XX_DEV_NEED_RESET &&
+		} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
 		    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
 			ql_log(ql_log_warn, vha, 0x6001,
 			    "Adapter reset needed.\n");
 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
-		} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
+		} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
 			!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
 			ql_log(ql_log_warn, vha, 0x6002,
 			    "Quiescent needed.\n");
 			set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
+		} else if (dev_state == QLA8XXX_DEV_FAILED &&
+			!test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
+			vha->flags.online == 1) {
+			ql_log(ql_log_warn, vha, 0xb055,
+			    "Adapter state is failed. Offlining.\n");
+			set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
+			ha->flags.isp82xx_fw_hung = 1;
+			qla82xx_clear_pending_mbx(vha);
 		} else {
 			if (qla82xx_check_fw_alive(vha)) {
 				ql_dbg(ql_dbg_timer, vha, 0x6011,
@@ -3445,12 +3456,12 @@ qla82xx_set_reset_owner(scsi_qla_host_t *vha)
 	uint32_t dev_state;
 
 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-	if (dev_state == QLA82XX_DEV_READY) {
+	if (dev_state == QLA8XXX_DEV_READY) {
 		ql_log(ql_log_info, vha, 0xb02f,
 		    "HW State: NEED RESET\n");
 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			QLA82XX_DEV_NEED_RESET);
-		ha->flags.isp82xx_reset_owner = 1;
+			QLA8XXX_DEV_NEED_RESET);
+		ha->flags.nic_core_reset_owner = 1;
 		ql_dbg(ql_dbg_p3p, vha, 0xb030,
 		    "reset_owner is 0x%x\n", ha->portnum);
 	} else
@@ -3481,7 +3492,7 @@ qla82xx_abort_isp(scsi_qla_host_t *vha)
 		    "Device in failed state, exiting.\n");
 		return QLA_SUCCESS;
 	}
-	ha->flags.isp82xx_reset_hdlr_active = 1;
+	ha->flags.nic_core_reset_hdlr_active = 1;
 
 	qla82xx_idc_lock(ha);
 	qla82xx_set_reset_owner(vha);
@@ -3495,7 +3506,7 @@ qla82xx_abort_isp(scsi_qla_host_t *vha)
 
 	if (rval == QLA_SUCCESS) {
 		ha->flags.isp82xx_fw_hung = 0;
-		ha->flags.isp82xx_reset_hdlr_active = 0;
+		ha->flags.nic_core_reset_hdlr_active = 0;
 		qla82xx_restart_isp(vha);
 	}
 
@@ -4030,7 +4041,7 @@ qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
 
 	if (r_addr & 0xf) {
 		ql_log(ql_log_warn, vha, 0xb033,
-		    "Read addr 0x%x not 16 bytes alligned\n", r_addr);
+		    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
 		return rval;
 	}
 
diff --git a/drivers/scsi/qla2xxx/qla_nx.h b/drivers/scsi/qla2xxx/qla_nx.h
index 6eb210e3cc6..6c953e8c08f 100644
--- a/drivers/scsi/qla2xxx/qla_nx.h
+++ b/drivers/scsi/qla2xxx/qla_nx.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -542,14 +542,15 @@
 #define QLA82XX_CRB_DRV_IDC_VERSION  (QLA82XX_CAM_RAM(0x174))
 
 /* Every driver should use these Device State */
-#define QLA82XX_DEV_COLD		1
-#define QLA82XX_DEV_INITIALIZING	2
-#define QLA82XX_DEV_READY		3
-#define QLA82XX_DEV_NEED_RESET		4
-#define QLA82XX_DEV_NEED_QUIESCENT	5
-#define QLA82XX_DEV_FAILED		6
-#define QLA82XX_DEV_QUIESCENT		7
+#define QLA8XXX_DEV_COLD		1
+#define QLA8XXX_DEV_INITIALIZING	2
+#define QLA8XXX_DEV_READY		3
+#define QLA8XXX_DEV_NEED_RESET		4
+#define QLA8XXX_DEV_NEED_QUIESCENT	5
+#define QLA8XXX_DEV_FAILED		6
+#define QLA8XXX_DEV_QUIESCENT		7
 #define	MAX_STATES			8 /* Increment if new state added */
+#define QLA8XXX_BAD_VALUE		0xbad0bad0
 
 #define QLA82XX_IDC_VERSION			1
 #define QLA82XX_ROM_DEV_INIT_TIMEOUT		30
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index fb8cd3847d4..d501bf5f806 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -113,11 +113,11 @@ MODULE_PARM_DESC(ql2xfdmienable,
 static int ql2xmaxqdepth = MAX_Q_DEPTH;
 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(ql2xmaxqdepth,
-		"Maximum queue depth to report for target devices.");
+		"Maximum queue depth to set for each LUN. "
+		"Default is 32.");
 
-/* Do not change the value of this after module load */
-int ql2xenabledif = 0;
-module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
+int ql2xenabledif = 2;
+module_param(ql2xenabledif, int, S_IRUGO);
 MODULE_PARM_DESC(ql2xenabledif,
 		" Enable T10-CRC-DIF "
 		" Default is 0 - No DIF Support. 1 - Enable it"
@@ -1078,7 +1078,7 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 	if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
 	    cmd->device->lun, type) != QLA_SUCCESS) {
 		ql_log(ql_log_warn, vha, 0x800d,
-		    "wait for peding cmds failed for cmd=%p.\n", cmd);
+		    "wait for pending cmds failed for cmd=%p.\n", cmd);
 		goto eh_reset_failed;
 	}
 
@@ -1177,7 +1177,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 eh_bus_reset_done:
 	ql_log(ql_log_warn, vha, 0x802b,
 	    "BUS RESET %s nexus=%ld:%d:%d.\n",
-	    (ret == FAILED) ? "FAILED" : "SUCCEDED", vha->host_no, id, lun);
+	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
 
 	return ret;
 }
@@ -1357,6 +1357,9 @@ qla2xxx_slave_configure(struct scsi_device *sdev)
 	scsi_qla_host_t *vha = shost_priv(sdev->host);
 	struct req_que *req = vha->req;
 
+	if (IS_T10_PI_CAPABLE(vha->hw))
+		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
+
 	if (sdev->tagged_supported)
 		scsi_activate_tcq(sdev, req->max_q_depth);
 	else
@@ -1919,7 +1922,7 @@ static struct isp_operations qla82xx_isp_ops = {
 	.nvram_config		= qla81xx_nvram_config,
 	.update_fw_options	= qla24xx_update_fw_options,
 	.load_risc		= qla82xx_load_risc,
-	.pci_info_str		= qla82xx_pci_info_str,
+	.pci_info_str		= qla24xx_pci_info_str,
 	.fw_version_str		= qla24xx_fw_version_str,
 	.intr_handler		= qla82xx_intr_handler,
 	.enable_intrs		= qla82xx_enable_intrs,
@@ -2149,7 +2152,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	scsi_qla_host_t *base_vha = NULL;
 	struct qla_hw_data *ha;
 	char pci_info[30];
-	char fw_str[30];
+	char fw_str[30], wq_name[30];
 	struct scsi_host_template *sht;
 	int bars, mem_only = 0;
 	uint16_t req_length = 0, rsp_length = 0;
@@ -2203,12 +2206,14 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	ha->mem_only = mem_only;
 	spin_lock_init(&ha->hardware_lock);
 	spin_lock_init(&ha->vport_slock);
+	mutex_init(&ha->selflogin_lock);
 
 	/* Set ISP-type information. */
 	qla2x00_set_isp_flags(ha);
 
 	/* Set EEH reset type to fundamental if required by hba */
-	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha))
+	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
+	    IS_QLA83XX(ha))
 		pdev->needs_freset = 1;
 
 	ha->prev_topology = 0;
@@ -2318,6 +2323,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
 	} else if (IS_QLA83XX(ha)) {
+		ha->portnum = PCI_FUNC(ha->pdev->devfn);
 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
 		req_length = REQUEST_ENTRY_CNT_24XX;
@@ -2416,7 +2422,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	    host->can_queue, base_vha->req,
 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
 	host->max_id = ha->max_fibre_devices;
-	host->this_id = 255;
 	host->cmd_per_lun = 3;
 	host->unique_id = host->host_no;
 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
@@ -2499,7 +2504,7 @@ que_init:
 		if (IS_QLA82XX(ha)) {
 			qla82xx_idc_lock(ha);
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-				QLA82XX_DEV_FAILED);
+				QLA8XXX_DEV_FAILED);
 			qla82xx_idc_unlock(ha);
 			ql_log(ql_log_fatal, base_vha, 0x00d7,
 			    "HW State: FAILED.\n");
@@ -2542,6 +2547,20 @@ que_init:
 	 */
 	qla2xxx_wake_dpc(base_vha);
 
+	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
+		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
+		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
+		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
+
+		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
+		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
+		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
+		INIT_WORK(&ha->idc_state_handler,
+		    qla83xx_idc_state_handler_work);
+		INIT_WORK(&ha->nic_core_unrecoverable,
+		    qla83xx_nic_core_unrecoverable_work);
+	}
+
 skip_dpc:
 	list_add_tail(&base_vha->list, &ha->vp_list);
 	base_vha->host->irq = ha->pdev->irq;
@@ -2557,7 +2576,7 @@ skip_dpc:
 
 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
 		if (ha->fw_attributes & BIT_4) {
-			int prot = 0;
+			int prot = 0, guard;
 			base_vha->flags.difdix_supported = 1;
 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
@@ -2570,7 +2589,14 @@ skip_dpc:
 			    | SHOST_DIX_TYPE1_PROTECTION
 			    | SHOST_DIX_TYPE2_PROTECTION
 			    | SHOST_DIX_TYPE3_PROTECTION);
-			scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
+
+			guard = SHOST_DIX_GUARD_CRC;
+
+			if (IS_PI_IPGUARD_CAPABLE(ha) &&
+			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
+				guard |= SHOST_DIX_GUARD_IP;
+
+			scsi_host_set_guard(host, guard);
 		} else
 			base_vha->flags.difdix_supported = 0;
 	}
@@ -2750,6 +2776,14 @@ qla2x00_remove_one(struct pci_dev *pdev)
 	}
 	mutex_unlock(&ha->vport_lock);
 
+	if (IS_QLA8031(ha)) {
+		ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
+		    "Clearing fcoe driver presence.\n");
+		if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
+			    "Error while clearing DRV-Presence.\n");
+	}
+
 	set_bit(UNLOADING, &base_vha->dpc_flags);
 
 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
@@ -2771,6 +2805,21 @@ qla2x00_remove_one(struct pci_dev *pdev)
 		ha->wq = NULL;
 	}
 
+	/* Cancel all work and destroy DPC workqueues */
+	if (ha->dpc_lp_wq) {
+		cancel_work_sync(&ha->idc_aen);
+		destroy_workqueue(ha->dpc_lp_wq);
+		ha->dpc_lp_wq = NULL;
+	}
+
+	if (ha->dpc_hp_wq) {
+		cancel_work_sync(&ha->nic_core_reset);
+		cancel_work_sync(&ha->idc_state_handler);
+		cancel_work_sync(&ha->nic_core_unrecoverable);
+		destroy_workqueue(ha->dpc_hp_wq);
+		ha->dpc_hp_wq = NULL;
+	}
+
 	/* Kill the kernel thread for this host */
 	if (ha->dpc_thread) {
 		struct task_struct *t = ha->dpc_thread;
@@ -2837,7 +2886,6 @@ qla2x00_free_device(scsi_qla_host_t *vha)
 	qla2x00_stop_dpc_thread(vha);
 
 	qla25xx_delete_queues(vha);
-
 	if (ha->flags.fce_enabled)
 		qla2x00_disable_fce_trace(vha, NULL, NULL);
 
@@ -2872,6 +2920,7 @@ void qla2x00_free_fcports(struct scsi_qla_host *vha)
 
 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
 		list_del(&fcport->list);
+		qla2x00_clear_loop_id(fcport);
 		kfree(fcport);
 		fcport = NULL;
 	}
@@ -3169,6 +3218,18 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 	}
 
 	INIT_LIST_HEAD(&ha->vp_list);
+
+	/* Allocate memory for our loop_id bitmap */
+	ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
+	    GFP_KERNEL);
+	if (!ha->loop_id_map)
+		goto fail_async_pd;
+	else {
+		qla2x00_set_reserved_loop_ids(ha);
+		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
+		    "loop_id_map=%p. \n", ha->loop_id_map);
+	}
+
 	return 1;
 
 fail_async_pd:
@@ -3280,6 +3341,10 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 {
 	qla2x00_free_fw_dump(ha);
 
+	if (ha->mctp_dump)
+		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
+		    ha->mctp_dump_dma);
+
 	if (ha->srb_mempool)
 		mempool_destroy(ha->srb_mempool);
 
@@ -3352,6 +3417,7 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 	kfree(ha->nvram);
 	kfree(ha->npiv_info);
 	kfree(ha->swl);
+	kfree(ha->loop_id_map);
 
 	ha->srb_mempool = NULL;
 	ha->ctx_mempool = NULL;
@@ -3687,13 +3753,651 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
 			}
 
 			if (fcport->login_retry == 0 && status != QLA_SUCCESS)
-				fcport->loop_id = FC_NO_LOOP_ID;
+				qla2x00_clear_loop_id(fcport);
 		}
 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
 			break;
 	}
 }
 
+/* Schedule work on any of the dpc-workqueues */
+void
+qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
+{
+	struct qla_hw_data *ha = base_vha->hw;
+
+	switch (work_code) {
+	case MBA_IDC_AEN: /* 0x8200 */
+		if (ha->dpc_lp_wq)
+			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
+		break;
+
+	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
+		if (!ha->flags.nic_core_reset_hdlr_active) {
+			if (ha->dpc_hp_wq)
+				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
+		} else
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
+			    "NIC Core reset is already active. Skip "
+			    "scheduling it again.\n");
+		break;
+	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
+		if (ha->dpc_hp_wq)
+			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
+		break;
+	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
+		if (ha->dpc_hp_wq)
+			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
+		break;
+	default:
+		ql_log(ql_log_warn, base_vha, 0xb05f,
+		    "Unknow work-code=0x%x.\n", work_code);
+	}
+
+	return;
+}
+
+/* Work: Perform NIC Core Unrecoverable state handling */
+void
+qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
+{
+	struct qla_hw_data *ha =
+		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
+	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
+	uint32_t dev_state = 0;
+
+	qla83xx_idc_lock(base_vha, 0);
+	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
+	qla83xx_reset_ownership(base_vha);
+	if (ha->flags.nic_core_reset_owner) {
+		ha->flags.nic_core_reset_owner = 0;
+		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
+		    QLA8XXX_DEV_FAILED);
+		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
+		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
+	}
+	qla83xx_idc_unlock(base_vha, 0);
+}
+
+/* Work: Execute IDC state handler */
+void
+qla83xx_idc_state_handler_work(struct work_struct *work)
+{
+	struct qla_hw_data *ha =
+		container_of(work, struct qla_hw_data, idc_state_handler);
+	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
+	uint32_t dev_state = 0;
+
+	qla83xx_idc_lock(base_vha, 0);
+	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
+	if (dev_state == QLA8XXX_DEV_FAILED ||
+			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
+		qla83xx_idc_state_handler(base_vha);
+	qla83xx_idc_unlock(base_vha, 0);
+}
+
+int
+qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
+{
+	int rval = QLA_SUCCESS;
+	unsigned long heart_beat_wait = jiffies + (1 * HZ);
+	uint32_t heart_beat_counter1, heart_beat_counter2;
+
+	do {
+		if (time_after(jiffies, heart_beat_wait)) {
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
+			    "Nic Core f/w is not alive.\n");
+			rval = QLA_FUNCTION_FAILED;
+			break;
+		}
+
+		qla83xx_idc_lock(base_vha, 0);
+		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
+		    &heart_beat_counter1);
+		qla83xx_idc_unlock(base_vha, 0);
+		msleep(100);
+		qla83xx_idc_lock(base_vha, 0);
+		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
+		    &heart_beat_counter2);
+		qla83xx_idc_unlock(base_vha, 0);
+	} while (heart_beat_counter1 == heart_beat_counter2);
+
+	return rval;
+}
+
+/* Work: Perform NIC Core Reset handling */
+void
+qla83xx_nic_core_reset_work(struct work_struct *work)
+{
+	struct qla_hw_data *ha =
+		container_of(work, struct qla_hw_data, nic_core_reset);
+	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
+	uint32_t dev_state = 0;
+
+	if (IS_QLA2031(ha)) {
+		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
+			ql_log(ql_log_warn, base_vha, 0xb081,
+			    "Failed to dump mctp\n");
+		return;
+	}
+
+	if (!ha->flags.nic_core_reset_hdlr_active) {
+		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
+			qla83xx_idc_lock(base_vha, 0);
+			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
+			    &dev_state);
+			qla83xx_idc_unlock(base_vha, 0);
+			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
+				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
+				    "Nic Core f/w is alive.\n");
+				return;
+			}
+		}
+
+		ha->flags.nic_core_reset_hdlr_active = 1;
+		if (qla83xx_nic_core_reset(base_vha)) {
+			/* NIC Core reset failed. */
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
+			    "NIC Core reset failed.\n");
+		}
+		ha->flags.nic_core_reset_hdlr_active = 0;
+	}
+}
+
+/* Work: Handle 8200 IDC aens */
+void
+qla83xx_service_idc_aen(struct work_struct *work)
+{
+	struct qla_hw_data *ha =
+		container_of(work, struct qla_hw_data, idc_aen);
+	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
+	uint32_t dev_state, idc_control;
+
+	qla83xx_idc_lock(base_vha, 0);
+	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
+	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
+	qla83xx_idc_unlock(base_vha, 0);
+	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
+		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
+			    "Application requested NIC Core Reset.\n");
+			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
+		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
+		    QLA_SUCCESS) {
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
+			    "Other protocol driver requested NIC Core Reset.\n");
+			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
+		}
+	} else if (dev_state == QLA8XXX_DEV_FAILED ||
+			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
+		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
+	}
+}
+
+static void
+qla83xx_wait_logic(void)
+{
+	int i;
+
+	/* Yield CPU */
+	if (!in_interrupt()) {
+		/*
+		 * Wait about 200ms before retrying again.
+		 * This controls the number of retries for single
+		 * lock operation.
+		 */
+		msleep(100);
+		schedule();
+	} else {
+		for (i = 0; i < 20; i++)
+			cpu_relax(); /* This a nop instr on i386 */
+	}
+}
+
+int
+qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
+{
+	int rval;
+	uint32_t data;
+	uint32_t idc_lck_rcvry_stage_mask = 0x3;
+	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
+	struct qla_hw_data *ha = base_vha->hw;
+
+	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
+	if (rval)
+		return rval;
+
+	if ((data & idc_lck_rcvry_stage_mask) > 0) {
+		return QLA_SUCCESS;
+	} else {
+		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
+		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
+		    data);
+		if (rval)
+			return rval;
+
+		msleep(200);
+
+		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
+		    &data);
+		if (rval)
+			return rval;
+
+		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
+			data &= (IDC_LOCK_RECOVERY_STAGE2 |
+					~(idc_lck_rcvry_stage_mask));
+			rval = qla83xx_wr_reg(base_vha,
+			    QLA83XX_IDC_LOCK_RECOVERY, data);
+			if (rval)
+				return rval;
+
+			/* Forcefully perform IDC UnLock */
+			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
+			    &data);
+			if (rval)
+				return rval;
+			/* Clear lock-id by setting 0xff */
+			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
+			    0xff);
+			if (rval)
+				return rval;
+			/* Clear lock-recovery by setting 0x0 */
+			rval = qla83xx_wr_reg(base_vha,
+			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
+			if (rval)
+				return rval;
+		} else
+			return QLA_SUCCESS;
+	}
+
+	return rval;
+}
+
+int
+qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
+{
+	int rval = QLA_SUCCESS;
+	uint32_t o_drv_lockid, n_drv_lockid;
+	unsigned long lock_recovery_timeout;
+
+	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
+retry_lockid:
+	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
+	if (rval)
+		goto exit;
+
+	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
+	if (time_after_eq(jiffies, lock_recovery_timeout)) {
+		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
+			return QLA_SUCCESS;
+		else
+			return QLA_FUNCTION_FAILED;
+	}
+
+	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
+	if (rval)
+		goto exit;
+
+	if (o_drv_lockid == n_drv_lockid) {
+		qla83xx_wait_logic();
+		goto retry_lockid;
+	} else
+		return QLA_SUCCESS;
+
+exit:
+	return rval;
+}
+
+void
+qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
+{
+	uint16_t options = (requester_id << 15) | BIT_6;
+	uint32_t data;
+	struct qla_hw_data *ha = base_vha->hw;
+
+	/* IDC-lock implementation using driver-lock/lock-id remote registers */
+retry_lock:
+	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
+	    == QLA_SUCCESS) {
+		if (data) {
+			/* Setting lock-id to our function-number */
+			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
+			    ha->portnum);
+		} else {
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
+			    "Failed to acquire IDC lock. retrying...\n");
+
+			/* Retry/Perform IDC-Lock recovery */
+			if (qla83xx_idc_lock_recovery(base_vha)
+			    == QLA_SUCCESS) {
+				qla83xx_wait_logic();
+				goto retry_lock;
+			} else
+				ql_log(ql_log_warn, base_vha, 0xb075,
+				    "IDC Lock recovery FAILED.\n");
+		}
+
+	}
+
+	return;
+
+	/* XXX: IDC-lock implementation using access-control mbx */
+retry_lock2:
+	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
+		ql_dbg(ql_dbg_p3p, base_vha, 0xb072,
+		    "Failed to acquire IDC lock. retrying...\n");
+		/* Retry/Perform IDC-Lock recovery */
+		if (qla83xx_idc_lock_recovery(base_vha) == QLA_SUCCESS) {
+			qla83xx_wait_logic();
+			goto retry_lock2;
+		} else
+			ql_log(ql_log_warn, base_vha, 0xb076,
+			    "IDC Lock recovery FAILED.\n");
+	}
+
+	return;
+}
+
+void
+qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
+{
+	uint16_t options = (requester_id << 15) | BIT_7, retry;
+	uint32_t data;
+	struct qla_hw_data *ha = base_vha->hw;
+
+	/* IDC-unlock implementation using driver-unlock/lock-id
+	 * remote registers
+	 */
+	retry = 0;
+retry_unlock:
+	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
+	    == QLA_SUCCESS) {
+		if (data == ha->portnum) {
+			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
+			/* Clearing lock-id by setting 0xff */
+			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
+		} else if (retry < 10) {
+			/* SV: XXX: IDC unlock retrying needed here? */
+
+			/* Retry for IDC-unlock */
+			qla83xx_wait_logic();
+			retry++;
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
+			    "Failed to release IDC lock, retyring=%d\n", retry);
+			goto retry_unlock;
+		}
+	} else if (retry < 10) {
+		/* Retry for IDC-unlock */
+		qla83xx_wait_logic();
+		retry++;
+		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
+		    "Failed to read drv-lockid, retyring=%d\n", retry);
+		goto retry_unlock;
+	}
+
+	return;
+
+	/* XXX: IDC-unlock implementation using access-control mbx */
+	retry = 0;
+retry_unlock2:
+	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
+		if (retry < 10) {
+			/* Retry for IDC-unlock */
+			qla83xx_wait_logic();
+			retry++;
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
+			    "Failed to release IDC lock, retyring=%d\n", retry);
+			goto retry_unlock2;
+		}
+	}
+
+	return;
+}
+
+int
+__qla83xx_set_drv_presence(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t drv_presence;
+
+	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
+	if (rval == QLA_SUCCESS) {
+		drv_presence |= (1 << ha->portnum);
+		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
+		    drv_presence);
+	}
+
+	return rval;
+}
+
+int
+qla83xx_set_drv_presence(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+
+	qla83xx_idc_lock(vha, 0);
+	rval = __qla83xx_set_drv_presence(vha);
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
+int
+__qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t drv_presence;
+
+	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
+	if (rval == QLA_SUCCESS) {
+		drv_presence &= ~(1 << ha->portnum);
+		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
+		    drv_presence);
+	}
+
+	return rval;
+}
+
+int
+qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+
+	qla83xx_idc_lock(vha, 0);
+	rval = __qla83xx_clear_drv_presence(vha);
+	qla83xx_idc_unlock(vha, 0);
+
+	return rval;
+}
+
+void
+qla83xx_need_reset_handler(scsi_qla_host_t *vha)
+{
+	struct qla_hw_data *ha = vha->hw;
+	uint32_t drv_ack, drv_presence;
+	unsigned long ack_timeout;
+
+	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
+	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
+	while (1) {
+		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
+		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
+		if (drv_ack == drv_presence)
+			break;
+
+		if (time_after_eq(jiffies, ack_timeout)) {
+			ql_log(ql_log_warn, vha, 0xb067,
+			    "RESET ACK TIMEOUT! drv_presence=0x%x "
+			    "drv_ack=0x%x\n", drv_presence, drv_ack);
+			/*
+			 * The function(s) which did not ack in time are forced
+			 * to withdraw any further participation in the IDC
+			 * reset.
+			 */
+			if (drv_ack != drv_presence)
+				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
+				    drv_ack);
+			break;
+		}
+
+		qla83xx_idc_unlock(vha, 0);
+		msleep(1000);
+		qla83xx_idc_lock(vha, 0);
+	}
+
+	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
+	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
+}
+
+int
+qla83xx_device_bootstrap(scsi_qla_host_t *vha)
+{
+	int rval = QLA_SUCCESS;
+	uint32_t idc_control;
+
+	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
+	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
+
+	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
+	__qla83xx_get_idc_control(vha, &idc_control);
+	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
+	__qla83xx_set_idc_control(vha, 0);
+
+	qla83xx_idc_unlock(vha, 0);
+	rval = qla83xx_restart_nic_firmware(vha);
+	qla83xx_idc_lock(vha, 0);
+
+	if (rval != QLA_SUCCESS) {
+		ql_log(ql_log_fatal, vha, 0xb06a,
+		    "Failed to restart NIC f/w.\n");
+		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
+		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
+	} else {
+		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
+		    "Success in restarting nic f/w.\n");
+		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
+		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
+	}
+
+	return rval;
+}
+
+/* Assumes idc_lock always held on entry */
+int
+qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
+{
+	struct qla_hw_data *ha = base_vha->hw;
+	int rval = QLA_SUCCESS;
+	unsigned long dev_init_timeout;
+	uint32_t dev_state;
+
+	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
+	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
+
+	while (1) {
+
+		if (time_after_eq(jiffies, dev_init_timeout)) {
+			ql_log(ql_log_warn, base_vha, 0xb06e,
+			    "Initialization TIMEOUT!\n");
+			/* Init timeout. Disable further NIC Core
+			 * communication.
+			 */
+			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
+				QLA8XXX_DEV_FAILED);
+			ql_log(ql_log_info, base_vha, 0xb06f,
+			    "HW State: FAILED.\n");
+		}
+
+		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
+		switch (dev_state) {
+		case QLA8XXX_DEV_READY:
+			if (ha->flags.nic_core_reset_owner)
+				qla83xx_idc_audit(base_vha,
+				    IDC_AUDIT_COMPLETION);
+			ha->flags.nic_core_reset_owner = 0;
+			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
+			    "Reset_owner reset by 0x%x.\n",
+			    ha->portnum);
+			goto exit;
+		case QLA8XXX_DEV_COLD:
+			if (ha->flags.nic_core_reset_owner)
+				rval = qla83xx_device_bootstrap(base_vha);
+			else {
+			/* Wait for AEN to change device-state */
+				qla83xx_idc_unlock(base_vha, 0);
+				msleep(1000);
+				qla83xx_idc_lock(base_vha, 0);
+			}
+			break;
+		case QLA8XXX_DEV_INITIALIZING:
+			/* Wait for AEN to change device-state */
+			qla83xx_idc_unlock(base_vha, 0);
+			msleep(1000);
+			qla83xx_idc_lock(base_vha, 0);
+			break;
+		case QLA8XXX_DEV_NEED_RESET:
+			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
+				qla83xx_need_reset_handler(base_vha);
+			else {
+				/* Wait for AEN to change device-state */
+				qla83xx_idc_unlock(base_vha, 0);
+				msleep(1000);
+				qla83xx_idc_lock(base_vha, 0);
+			}
+			/* reset timeout value after need reset handler */
+			dev_init_timeout = jiffies +
+			    (ha->fcoe_dev_init_timeout * HZ);
+			break;
+		case QLA8XXX_DEV_NEED_QUIESCENT:
+			/* XXX: DEBUG for now */
+			qla83xx_idc_unlock(base_vha, 0);
+			msleep(1000);
+			qla83xx_idc_lock(base_vha, 0);
+			break;
+		case QLA8XXX_DEV_QUIESCENT:
+			/* XXX: DEBUG for now */
+			if (ha->flags.quiesce_owner)
+				goto exit;
+
+			qla83xx_idc_unlock(base_vha, 0);
+			msleep(1000);
+			qla83xx_idc_lock(base_vha, 0);
+			dev_init_timeout = jiffies +
+			    (ha->fcoe_dev_init_timeout * HZ);
+			break;
+		case QLA8XXX_DEV_FAILED:
+			if (ha->flags.nic_core_reset_owner)
+				qla83xx_idc_audit(base_vha,
+				    IDC_AUDIT_COMPLETION);
+			ha->flags.nic_core_reset_owner = 0;
+			__qla83xx_clear_drv_presence(base_vha);
+			qla83xx_idc_unlock(base_vha, 0);
+			qla8xxx_dev_failed_handler(base_vha);
+			rval = QLA_FUNCTION_FAILED;
+			qla83xx_idc_lock(base_vha, 0);
+			goto exit;
+		case QLA8XXX_BAD_VALUE:
+			qla83xx_idc_unlock(base_vha, 0);
+			msleep(1000);
+			qla83xx_idc_lock(base_vha, 0);
+			break;
+		default:
+			ql_log(ql_log_warn, base_vha, 0xb071,
+			    "Unknow Device State: %x.\n", dev_state);
+			qla83xx_idc_unlock(base_vha, 0);
+			qla8xxx_dev_failed_handler(base_vha);
+			rval = QLA_FUNCTION_FAILED;
+			qla83xx_idc_lock(base_vha, 0);
+			goto exit;
+		}
+	}
+
+exit:
+	return rval;
+}
+
 /**************************************************************************
 * qla2x00_do_dpc
 *   This kernel thread is a task that is schedule by the interrupt handler
@@ -3749,7 +4453,7 @@ qla2x00_do_dpc(void *data)
 				&base_vha->dpc_flags)) {
 				qla82xx_idc_lock(ha);
 				qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-					QLA82XX_DEV_FAILED);
+					QLA8XXX_DEV_FAILED);
 				qla82xx_idc_unlock(ha);
 				ql_log(ql_log_info, base_vha, 0x4004,
 				    "HW State: FAILED.\n");
@@ -3819,14 +4523,21 @@ qla2x00_do_dpc(void *data)
 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
 			    "Quiescence mode scheduled.\n");
-			qla82xx_device_state_handler(base_vha);
-			clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
-			if (!ha->flags.quiesce_owner) {
-				qla2x00_perform_loop_resync(base_vha);
-
-				qla82xx_idc_lock(ha);
-				qla82xx_clear_qsnt_ready(base_vha);
-				qla82xx_idc_unlock(ha);
+			if (IS_QLA82XX(ha)) {
+				qla82xx_device_state_handler(base_vha);
+				clear_bit(ISP_QUIESCE_NEEDED,
+				    &base_vha->dpc_flags);
+				if (!ha->flags.quiesce_owner) {
+					qla2x00_perform_loop_resync(base_vha);
+
+					qla82xx_idc_lock(ha);
+					qla82xx_clear_qsnt_ready(base_vha);
+					qla82xx_idc_unlock(ha);
+				}
+			} else {
+				clear_bit(ISP_QUIESCE_NEEDED,
+				    &base_vha->dpc_flags);
+				qla2x00_quiesce_io(base_vha);
 			}
 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
 			    "Quiescence mode end.\n");
@@ -4326,7 +5037,7 @@ uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
 		qla82xx_idc_lock(ha);
 
 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-		    QLA82XX_DEV_INITIALIZING);
+		    QLA8XXX_DEV_INITIALIZING);
 
 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
 		    QLA82XX_IDC_VERSION);
@@ -4350,12 +5061,12 @@ uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
 			    "HW State: FAILED.\n");
 			qla82xx_clear_drv_active(ha);
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_FAILED);
+			    QLA8XXX_DEV_FAILED);
 		} else {
 			ql_log(ql_log_info, base_vha, 0x900c,
 			    "HW State: READY.\n");
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_READY);
+			    QLA8XXX_DEV_READY);
 			qla82xx_idc_unlock(ha);
 			ha->flags.isp82xx_fw_hung = 0;
 			rval = qla82xx_restart_isp(base_vha);
@@ -4370,7 +5081,7 @@ uint32_t qla82xx_error_recovery(scsi_qla_host_t *base_vha)
 		    "This devfn is not reset owner = 0x%x.\n",
 		    ha->pdev->devfn);
 		if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
-		    QLA82XX_DEV_READY)) {
+		    QLA8XXX_DEV_READY)) {
 			ha->flags.isp82xx_fw_hung = 0;
 			rval = qla82xx_restart_isp(base_vha);
 			qla82xx_idc_lock(ha);
@@ -4471,7 +5182,7 @@ qla2xxx_pci_resume(struct pci_dev *pdev)
 	ha->flags.eeh_busy = 0;
 }
 
-static struct pci_error_handlers qla2xxx_err_handler = {
+static const struct pci_error_handlers qla2xxx_err_handler = {
 	.error_detected = qla2xxx_pci_error_detected,
 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
 	.slot_reset = qla2xxx_pci_slot_reset,
@@ -4495,6 +5206,7 @@ static struct pci_device_id qla2xxx_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
 	{ 0 },
 };
 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
diff --git a/drivers/scsi/qla2xxx/qla_settings.h b/drivers/scsi/qla2xxx/qla_settings.h
index d70f0300898..892a81e457b 100644
--- a/drivers/scsi/qla2xxx/qla_settings.h
+++ b/drivers/scsi/qla2xxx/qla_settings.h
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c
index a683e766d1a..32fdc2a66dd 100644
--- a/drivers/scsi/qla2xxx/qla_sup.c
+++ b/drivers/scsi/qla2xxx/qla_sup.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -966,16 +966,16 @@ qla2xxx_get_idc_param(scsi_qla_host_t *vha)
 		QLA82XX_IDC_PARAM_ADDR , 8);
 
 	if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
-		ha->nx_dev_init_timeout = QLA82XX_ROM_DEV_INIT_TIMEOUT;
-		ha->nx_reset_timeout = QLA82XX_ROM_DRV_RESET_ACK_TIMEOUT;
+		ha->fcoe_dev_init_timeout = QLA82XX_ROM_DEV_INIT_TIMEOUT;
+		ha->fcoe_reset_timeout = QLA82XX_ROM_DRV_RESET_ACK_TIMEOUT;
 	} else {
-		ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
-		ha->nx_reset_timeout = le32_to_cpu(*wptr);
+		ha->fcoe_dev_init_timeout = le32_to_cpu(*wptr++);
+		ha->fcoe_reset_timeout = le32_to_cpu(*wptr);
 	}
 	ql_dbg(ql_dbg_init, vha, 0x004e,
-	    "nx_dev_init_timeout=%d "
-	    "nx_reset_timeout=%d.\n", ha->nx_dev_init_timeout,
-	    ha->nx_reset_timeout);
+	    "fcoe_dev_init_timeout=%d "
+	    "fcoe_reset_timeout=%d.\n", ha->fcoe_dev_init_timeout,
+	    ha->fcoe_reset_timeout);
 	return;
 }
 
@@ -1017,7 +1017,7 @@ qla2xxx_flash_npiv_conf(scsi_qla_host_t *vha)
 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha))
 		return;
 
-	if (ha->flags.isp82xx_reset_hdlr_active)
+	if (ha->flags.nic_core_reset_hdlr_active)
 		return;
 
 	ha->isp_ops->read_optrom(vha, (uint8_t *)&hdr,
@@ -1662,6 +1662,23 @@ qla24xx_beacon_blink(struct scsi_qla_host *vha)
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
 
+static uint32_t
+qla83xx_select_led_port(struct qla_hw_data *ha)
+{
+	uint32_t led_select_value = 0;
+
+	if (!IS_QLA83XX(ha))
+		goto out;
+
+	if (ha->flags.port0)
+		led_select_value = QLA83XX_LED_PORT0;
+	else
+		led_select_value = QLA83XX_LED_PORT1;
+
+out:
+	return led_select_value;
+}
+
 void
 qla83xx_beacon_blink(struct scsi_qla_host *vha)
 {
@@ -1669,22 +1686,34 @@ qla83xx_beacon_blink(struct scsi_qla_host *vha)
 	struct qla_hw_data *ha = vha->hw;
 	uint16_t led_cfg[6];
 	uint16_t orig_led_cfg[6];
+	uint32_t led_10_value, led_43_value;
 
 	if (!IS_QLA83XX(ha) && !IS_QLA81XX(ha))
 		return;
 
-	if (IS_QLA2031(ha) && ha->beacon_blink_led) {
-		if (ha->flags.port0)
-			led_select_value = 0x00201320;
-		else
-			led_select_value = 0x00201328;
+	if (!ha->beacon_blink_led)
+		return;
+
+	if (IS_QLA2031(ha)) {
+		led_select_value = qla83xx_select_led_port(ha);
 
-		qla83xx_write_remote_reg(vha, led_select_value, 0x40002000);
-		qla83xx_write_remote_reg(vha, led_select_value + 4, 0x40002000);
+		qla83xx_wr_reg(vha, led_select_value, 0x40002000);
+		qla83xx_wr_reg(vha, led_select_value + 4, 0x40002000);
+		msleep(1000);
+		qla83xx_wr_reg(vha, led_select_value, 0x40004000);
+		qla83xx_wr_reg(vha, led_select_value + 4, 0x40004000);
+	} else if (IS_QLA8031(ha)) {
+		led_select_value = qla83xx_select_led_port(ha);
+
+		qla83xx_rd_reg(vha, led_select_value, &led_10_value);
+		qla83xx_rd_reg(vha, led_select_value + 0x10, &led_43_value);
+		qla83xx_wr_reg(vha, led_select_value, 0x01f44000);
+		msleep(500);
+		qla83xx_wr_reg(vha, led_select_value, 0x400001f4);
 		msleep(1000);
-		qla83xx_write_remote_reg(vha, led_select_value, 0x40004000);
-		qla83xx_write_remote_reg(vha, led_select_value + 4, 0x40004000);
-	} else if ((IS_QLA8031(ha) || IS_QLA81XX(ha)) && ha->beacon_blink_led) {
+		qla83xx_wr_reg(vha, led_select_value, led_10_value);
+		qla83xx_wr_reg(vha, led_select_value + 0x10, led_43_value);
+	} else if (IS_QLA81XX(ha)) {
 		int rval;
 
 		/* Save Current */
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 5b30132960c..bddc97c5c8e 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -969,7 +969,7 @@ void qlt_stop_phase1(struct qla_tgt *tgt)
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	mutex_unlock(&ha->tgt.tgt_mutex);
 
-	flush_delayed_work_sync(&tgt->sess_del_work);
+	flush_delayed_work(&tgt->sess_del_work);
 
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
 	    "Waiting for sess works (tgt %p)", tgt);
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index f5fdb16bec9..cfe934e1af4 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -1,15 +1,15 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.04.00.03-k"
+#define QLA2XXX_VERSION      "8.04.00.07-k"
 
 #define QLA_DRIVER_MAJOR_VER	8
 #define QLA_DRIVER_MINOR_VER	4
 #define QLA_DRIVER_PATCH_VER	0
-#define QLA_DRIVER_BETA_VER	3
+#define QLA_DRIVER_BETA_VER	0
diff --git a/drivers/scsi/qla4xxx/Kconfig b/drivers/scsi/qla4xxx/Kconfig
index f1ad02ea212..e4dc7c733c2 100644
--- a/drivers/scsi/qla4xxx/Kconfig
+++ b/drivers/scsi/qla4xxx/Kconfig
@@ -4,5 +4,5 @@ config SCSI_QLA_ISCSI
 	select SCSI_ISCSI_ATTRS
 	select ISCSI_BOOT_SYSFS
 	---help---
-	This driver supports the QLogic 40xx (ISP4XXX) and 8022 (ISP82XX)
-	iSCSI host adapter family.
+	This driver supports the QLogic 40xx (ISP4XXX), 8022 (ISP82XX)
+	and 8032 (ISP83XX) iSCSI host adapter family.
diff --git a/drivers/scsi/qla4xxx/Makefile b/drivers/scsi/qla4xxx/Makefile
index 5b44139ff43..4230977748c 100644
--- a/drivers/scsi/qla4xxx/Makefile
+++ b/drivers/scsi/qla4xxx/Makefile
@@ -1,5 +1,5 @@
 qla4xxx-y := ql4_os.o ql4_init.o ql4_mbx.o ql4_iocb.o ql4_isr.o \
-		ql4_nx.o ql4_nvram.o ql4_dbg.o ql4_attr.o ql4_bsg.o
+		ql4_nx.o ql4_nvram.o ql4_dbg.o ql4_attr.o ql4_bsg.o ql4_83xx.o
 
 obj-$(CONFIG_SCSI_QLA_ISCSI) += qla4xxx.o
 
diff --git a/drivers/scsi/qla4xxx/ql4_83xx.c b/drivers/scsi/qla4xxx/ql4_83xx.c
new file mode 100644
index 00000000000..6e9af20be12
--- /dev/null
+++ b/drivers/scsi/qla4xxx/ql4_83xx.c
@@ -0,0 +1,1611 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c)   2003-2012 QLogic Corporation
+ *
+ * See LICENSE.qla4xxx for copyright and licensing details.
+ */
+
+#include <linux/ratelimit.h>
+
+#include "ql4_def.h"
+#include "ql4_version.h"
+#include "ql4_glbl.h"
+#include "ql4_dbg.h"
+#include "ql4_inline.h"
+
+uint32_t qla4_83xx_rd_reg(struct scsi_qla_host *ha, ulong addr)
+{
+	return readl((void __iomem *)(ha->nx_pcibase + addr));
+}
+
+void qla4_83xx_wr_reg(struct scsi_qla_host *ha, ulong addr, uint32_t val)
+{
+	writel(val, (void __iomem *)(ha->nx_pcibase + addr));
+}
+
+static int qla4_83xx_set_win_base(struct scsi_qla_host *ha, uint32_t addr)
+{
+	uint32_t val;
+	int ret_val = QLA_SUCCESS;
+
+	qla4_83xx_wr_reg(ha, QLA83XX_CRB_WIN_FUNC(ha->func_num), addr);
+	val = qla4_83xx_rd_reg(ha, QLA83XX_CRB_WIN_FUNC(ha->func_num));
+	if (val != addr) {
+		ql4_printk(KERN_ERR, ha, "%s: Failed to set register window : addr written 0x%x, read 0x%x!\n",
+			   __func__, addr, val);
+		ret_val = QLA_ERROR;
+	}
+
+	return ret_val;
+}
+
+int qla4_83xx_rd_reg_indirect(struct scsi_qla_host *ha, uint32_t addr,
+			      uint32_t *data)
+{
+	int ret_val;
+
+	ret_val = qla4_83xx_set_win_base(ha, addr);
+
+	if (ret_val == QLA_SUCCESS)
+		*data = qla4_83xx_rd_reg(ha, QLA83XX_WILDCARD);
+	else
+		ql4_printk(KERN_ERR, ha, "%s: failed read of addr 0x%x!\n",
+			   __func__, addr);
+
+	return ret_val;
+}
+
+int qla4_83xx_wr_reg_indirect(struct scsi_qla_host *ha, uint32_t addr,
+			      uint32_t data)
+{
+	int ret_val;
+
+	ret_val = qla4_83xx_set_win_base(ha, addr);
+
+	if (ret_val == QLA_SUCCESS)
+		qla4_83xx_wr_reg(ha, QLA83XX_WILDCARD, data);
+	else
+		ql4_printk(KERN_ERR, ha, "%s: failed wrt to addr 0x%x, data 0x%x\n",
+			   __func__, addr, data);
+
+	return ret_val;
+}
+
+static int qla4_83xx_flash_lock(struct scsi_qla_host *ha)
+{
+	int lock_owner;
+	int timeout = 0;
+	uint32_t lock_status = 0;
+	int ret_val = QLA_SUCCESS;
+
+	while (lock_status == 0) {
+		lock_status = qla4_83xx_rd_reg(ha, QLA83XX_FLASH_LOCK);
+		if (lock_status)
+			break;
+
+		if (++timeout >= QLA83XX_FLASH_LOCK_TIMEOUT / 20) {
+			lock_owner = qla4_83xx_rd_reg(ha,
+						      QLA83XX_FLASH_LOCK_ID);
+			ql4_printk(KERN_ERR, ha, "%s: flash lock by func %d failed, held by func %d\n",
+				   __func__, ha->func_num, lock_owner);
+			ret_val = QLA_ERROR;
+			break;
+		}
+		msleep(20);
+	}
+
+	qla4_83xx_wr_reg(ha, QLA83XX_FLASH_LOCK_ID, ha->func_num);
+	return ret_val;
+}
+
+static void qla4_83xx_flash_unlock(struct scsi_qla_host *ha)
+{
+	/* Reading FLASH_UNLOCK register unlocks the Flash */
+	qla4_83xx_wr_reg(ha, QLA83XX_FLASH_LOCK_ID, 0xFF);
+	qla4_83xx_rd_reg(ha, QLA83XX_FLASH_UNLOCK);
+}
+
+int qla4_83xx_flash_read_u32(struct scsi_qla_host *ha, uint32_t flash_addr,
+			     uint8_t *p_data, int u32_word_count)
+{
+	int i;
+	uint32_t u32_word;
+	uint32_t addr = flash_addr;
+	int ret_val = QLA_SUCCESS;
+
+	ret_val = qla4_83xx_flash_lock(ha);
+	if (ret_val == QLA_ERROR)
+		goto exit_lock_error;
+
+	if (addr & 0x03) {
+		ql4_printk(KERN_ERR, ha, "%s: Illegal addr = 0x%x\n",
+			   __func__, addr);
+		ret_val = QLA_ERROR;
+		goto exit_flash_read;
+	}
+
+	for (i = 0; i < u32_word_count; i++) {
+		ret_val = qla4_83xx_wr_reg_indirect(ha,
+						    QLA83XX_FLASH_DIRECT_WINDOW,
+						    (addr & 0xFFFF0000));
+		if (ret_val == QLA_ERROR) {
+			ql4_printk(KERN_ERR, ha, "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW\n!",
+				   __func__, addr);
+			goto exit_flash_read;
+		}
+
+		ret_val = qla4_83xx_rd_reg_indirect(ha,
+						QLA83XX_FLASH_DIRECT_DATA(addr),
+						&u32_word);
+		if (ret_val == QLA_ERROR) {
+			ql4_printk(KERN_ERR, ha, "%s: failed to read addr 0x%x!\n",
+				   __func__, addr);
+			goto exit_flash_read;
+		}
+
+		*(__le32 *)p_data = le32_to_cpu(u32_word);
+		p_data = p_data + 4;
+		addr = addr + 4;
+	}
+
+exit_flash_read:
+	qla4_83xx_flash_unlock(ha);
+
+exit_lock_error:
+	return ret_val;
+}
+
+int qla4_83xx_lockless_flash_read_u32(struct scsi_qla_host *ha,
+				      uint32_t flash_addr, uint8_t *p_data,
+				      int u32_word_count)
+{
+	uint32_t i;
+	uint32_t u32_word;
+	uint32_t flash_offset;
+	uint32_t addr = flash_addr;
+	int ret_val = QLA_SUCCESS;
+
+	flash_offset = addr & (QLA83XX_FLASH_SECTOR_SIZE - 1);
+
+	if (addr & 0x3) {
+		ql4_printk(KERN_ERR, ha, "%s: Illegal addr = 0x%x\n",
+			   __func__, addr);
+		ret_val = QLA_ERROR;
+		goto exit_lockless_read;
+	}
+
+	ret_val = qla4_83xx_wr_reg_indirect(ha, QLA83XX_FLASH_DIRECT_WINDOW,
+					    addr);
+	if (ret_val == QLA_ERROR) {
+		ql4_printk(KERN_ERR, ha, "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
+			   __func__, addr);
+		goto exit_lockless_read;
+	}
+
+	/* Check if data is spread across multiple sectors  */
+	if ((flash_offset + (u32_word_count * sizeof(uint32_t))) >
+	    (QLA83XX_FLASH_SECTOR_SIZE - 1)) {
+
+		/* Multi sector read */
+		for (i = 0; i < u32_word_count; i++) {
+			ret_val = qla4_83xx_rd_reg_indirect(ha,
+						QLA83XX_FLASH_DIRECT_DATA(addr),
+						&u32_word);
+			if (ret_val == QLA_ERROR) {
+				ql4_printk(KERN_ERR, ha, "%s: failed to read addr 0x%x!\n",
+					   __func__, addr);
+				goto exit_lockless_read;
+			}
+
+			*(__le32 *)p_data  = le32_to_cpu(u32_word);
+			p_data = p_data + 4;
+			addr = addr + 4;
+			flash_offset = flash_offset + 4;
+
+			if (flash_offset > (QLA83XX_FLASH_SECTOR_SIZE - 1)) {
+				/* This write is needed once for each sector */
+				ret_val = qla4_83xx_wr_reg_indirect(ha,
+						   QLA83XX_FLASH_DIRECT_WINDOW,
+						   addr);
+				if (ret_val == QLA_ERROR) {
+					ql4_printk(KERN_ERR, ha, "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
+						   __func__, addr);
+					goto exit_lockless_read;
+				}
+				flash_offset = 0;
+			}
+		}
+	} else {
+		/* Single sector read */
+		for (i = 0; i < u32_word_count; i++) {
+			ret_val = qla4_83xx_rd_reg_indirect(ha,
+						QLA83XX_FLASH_DIRECT_DATA(addr),
+						&u32_word);
+			if (ret_val == QLA_ERROR) {
+				ql4_printk(KERN_ERR, ha, "%s: failed to read addr 0x%x!\n",
+					   __func__, addr);
+				goto exit_lockless_read;
+			}
+
+			*(__le32 *)p_data = le32_to_cpu(u32_word);
+			p_data = p_data + 4;
+			addr = addr + 4;
+		}
+	}
+
+exit_lockless_read:
+	return ret_val;
+}
+
+void qla4_83xx_rom_lock_recovery(struct scsi_qla_host *ha)
+{
+	if (qla4_83xx_flash_lock(ha))
+		ql4_printk(KERN_INFO, ha, "%s: Resetting rom lock\n", __func__);
+
+	/*
+	 * We got the lock, or someone else is holding the lock
+	 * since we are restting, forcefully unlock
+	 */
+	qla4_83xx_flash_unlock(ha);
+}
+
+/**
+ * qla4_83xx_ms_mem_write_128b - Writes data to MS/off-chip memory
+ * @ha: Pointer to adapter structure
+ * @addr: Flash address to write to
+ * @data: Data to be written
+ * @count: word_count to be written
+ *
+ * Return: On success return QLA_SUCCESS
+ *	   On error return QLA_ERROR
+ **/
+static int qla4_83xx_ms_mem_write_128b(struct scsi_qla_host *ha, uint64_t addr,
+				       uint32_t *data, uint32_t count)
+{
+	int i, j;
+	uint32_t agt_ctrl;
+	unsigned long flags;
+	int ret_val = QLA_SUCCESS;
+
+	/* Only 128-bit aligned access */
+	if (addr & 0xF) {
+		ret_val = QLA_ERROR;
+		goto exit_ms_mem_write;
+	}
+
+	write_lock_irqsave(&ha->hw_lock, flags);
+
+	/* Write address */
+	ret_val = qla4_83xx_wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI, 0);
+	if (ret_val == QLA_ERROR) {
+		ql4_printk(KERN_ERR, ha, "%s: write to AGT_ADDR_HI failed\n",
+			   __func__);
+		goto exit_ms_mem_write_unlock;
+	}
+
+	for (i = 0; i < count; i++, addr += 16) {
+		if (!((QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
+					     QLA8XXX_ADDR_QDR_NET_MAX)) ||
+		      (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
+					     QLA8XXX_ADDR_DDR_NET_MAX)))) {
+			ret_val = QLA_ERROR;
+			goto exit_ms_mem_write_unlock;
+		}
+
+		ret_val = qla4_83xx_wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_LO,
+						    addr);
+		/* Write data */
+		ret_val |= qla4_83xx_wr_reg_indirect(ha,
+						     MD_MIU_TEST_AGT_WRDATA_LO,
+						     *data++);
+		ret_val |= qla4_83xx_wr_reg_indirect(ha,
+						     MD_MIU_TEST_AGT_WRDATA_HI,
+						     *data++);
+		ret_val |= qla4_83xx_wr_reg_indirect(ha,
+						     MD_MIU_TEST_AGT_WRDATA_ULO,
+						     *data++);
+		ret_val |= qla4_83xx_wr_reg_indirect(ha,
+						     MD_MIU_TEST_AGT_WRDATA_UHI,
+						     *data++);
+		if (ret_val == QLA_ERROR) {
+			ql4_printk(KERN_ERR, ha, "%s: write to AGT_WRDATA failed\n",
+				   __func__);
+			goto exit_ms_mem_write_unlock;
+		}
+
+		/* Check write status */
+		ret_val = qla4_83xx_wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
+						    MIU_TA_CTL_WRITE_ENABLE);
+		ret_val |= qla4_83xx_wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
+						     MIU_TA_CTL_WRITE_START);
+		if (ret_val == QLA_ERROR) {
+			ql4_printk(KERN_ERR, ha, "%s: write to AGT_CTRL failed\n",
+				   __func__);
+			goto exit_ms_mem_write_unlock;
+		}
+
+		for (j = 0; j < MAX_CTL_CHECK; j++) {
+			ret_val = qla4_83xx_rd_reg_indirect(ha,
+							MD_MIU_TEST_AGT_CTRL,
+							&agt_ctrl);
+			if (ret_val == QLA_ERROR) {
+				ql4_printk(KERN_ERR, ha, "%s: failed to read MD_MIU_TEST_AGT_CTRL\n",
+					   __func__);
+				goto exit_ms_mem_write_unlock;
+			}
+			if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
+				break;
+		}
+
+		/* Status check failed */
+		if (j >= MAX_CTL_CHECK) {
+			printk_ratelimited(KERN_ERR "%s: MS memory write failed!\n",
+					   __func__);
+			ret_val = QLA_ERROR;
+			goto exit_ms_mem_write_unlock;
+		}
+	}
+
+exit_ms_mem_write_unlock:
+	write_unlock_irqrestore(&ha->hw_lock, flags);
+
+exit_ms_mem_write:
+	return ret_val;
+}
+
+#define INTENT_TO_RECOVER	0x01
+#define PROCEED_TO_RECOVER	0x02
+
+static int qla4_83xx_lock_recovery(struct scsi_qla_host *ha)
+{
+
+	uint32_t lock = 0, lockid;
+	int ret_val = QLA_ERROR;
+
+	lockid = ha->isp_ops->rd_reg_direct(ha, QLA83XX_DRV_LOCKRECOVERY);
+
+	/* Check for other Recovery in progress, go wait */
+	if ((lockid & 0x3) != 0)
+		goto exit_lock_recovery;
+
+	/* Intent to Recover */
+	ha->isp_ops->wr_reg_direct(ha, QLA83XX_DRV_LOCKRECOVERY,
+				   (ha->func_num << 2) | INTENT_TO_RECOVER);
+
+	msleep(200);
+
+	/* Check Intent to Recover is advertised */
+	lockid = ha->isp_ops->rd_reg_direct(ha, QLA83XX_DRV_LOCKRECOVERY);
+	if ((lockid & 0x3C) != (ha->func_num << 2))
+		goto exit_lock_recovery;
+
+	ql4_printk(KERN_INFO, ha, "%s: IDC Lock recovery initiated for func %d\n",
+		   __func__, ha->func_num);
+
+	/* Proceed to Recover */
+	ha->isp_ops->wr_reg_direct(ha, QLA83XX_DRV_LOCKRECOVERY,
+				   (ha->func_num << 2) | PROCEED_TO_RECOVER);
+
+	/* Force Unlock */
+	ha->isp_ops->wr_reg_direct(ha, QLA83XX_DRV_LOCK_ID, 0xFF);
+	ha->isp_ops->rd_reg_direct(ha, QLA83XX_DRV_UNLOCK);
+
+	/* Clear bits 0-5 in IDC_RECOVERY register*/
+	ha->isp_ops->wr_reg_direct(ha, QLA83XX_DRV_LOCKRECOVERY, 0);
+
+	/* Get lock */
+	lock = ha->isp_ops->rd_reg_direct(ha, QLA83XX_DRV_LOCK);
+	if (lock) {
+		lockid = ha->isp_ops->rd_reg_direct(ha, QLA83XX_DRV_LOCK_ID);
+		lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->func_num;
+		ha->isp_ops->wr_reg_direct(ha, QLA83XX_DRV_LOCK_ID, lockid);
+		ret_val = QLA_SUCCESS;
+	}
+
+exit_lock_recovery:
+	return ret_val;
+}
+
+#define	QLA83XX_DRV_LOCK_MSLEEP		200
+
+int qla4_83xx_drv_lock(struct scsi_qla_host *ha)
+{
+	int timeout = 0;
+	uint32_t status = 0;
+	int ret_val = QLA_SUCCESS;
+	uint32_t first_owner = 0;
+	uint32_t tmo_owner = 0;
+	uint32_t lock_id;
+	uint32_t func_num;
+	uint32_t lock_cnt;
+
+	while (status == 0) {
+		status = qla4_83xx_rd_reg(ha, QLA83XX_DRV_LOCK);
+		if (status) {
+			/* Increment Counter (8-31) and update func_num (0-7) on
+			 * getting a successful lock  */
+			lock_id = qla4_83xx_rd_reg(ha, QLA83XX_DRV_LOCK_ID);
+			lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->func_num;
+			qla4_83xx_wr_reg(ha, QLA83XX_DRV_LOCK_ID, lock_id);
+			break;
+		}
+
+		if (timeout == 0)
+			/* Save counter + ID of function holding the lock for
+			 * first failure */
+			first_owner = ha->isp_ops->rd_reg_direct(ha,
+							  QLA83XX_DRV_LOCK_ID);
+
+		if (++timeout >=
+		    (QLA83XX_DRV_LOCK_TIMEOUT / QLA83XX_DRV_LOCK_MSLEEP)) {
+			tmo_owner = qla4_83xx_rd_reg(ha, QLA83XX_DRV_LOCK_ID);
+			func_num = tmo_owner & 0xFF;
+			lock_cnt = tmo_owner >> 8;
+			ql4_printk(KERN_INFO, ha, "%s: Lock by func %d failed after 2s, lock held by func %d, lock count %d, first_owner %d\n",
+				   __func__, ha->func_num, func_num, lock_cnt,
+				   (first_owner & 0xFF));
+
+			if (first_owner != tmo_owner) {
+				/* Some other driver got lock, OR same driver
+				 * got lock again (counter value changed), when
+				 * we were waiting for lock.
+				 * Retry for another 2 sec */
+				ql4_printk(KERN_INFO, ha, "%s: IDC lock failed for func %d\n",
+					   __func__, ha->func_num);
+				timeout = 0;
+			} else {
+				/* Same driver holding lock > 2sec.
+				 * Force Recovery */
+				ret_val = qla4_83xx_lock_recovery(ha);
+				if (ret_val == QLA_SUCCESS) {
+					/* Recovered and got lock */
+					ql4_printk(KERN_INFO, ha, "%s: IDC lock Recovery by %d successful\n",
+						   __func__, ha->func_num);
+					break;
+				}
+				/* Recovery Failed, some other function
+				 * has the lock, wait for 2secs and retry */
+				ql4_printk(KERN_INFO, ha, "%s: IDC lock Recovery by %d failed, Retrying timout\n",
+					   __func__, ha->func_num);
+				timeout = 0;
+			}
+		}
+		msleep(QLA83XX_DRV_LOCK_MSLEEP);
+	}
+
+	return ret_val;
+}
+
+void qla4_83xx_drv_unlock(struct scsi_qla_host *ha)
+{
+	int id;
+
+	id = qla4_83xx_rd_reg(ha, QLA83XX_DRV_LOCK_ID);
+
+	if ((id & 0xFF) != ha->func_num) {
+		ql4_printk(KERN_ERR, ha, "%s: IDC Unlock by %d failed, lock owner is %d\n",
+			   __func__, ha->func_num, (id & 0xFF));
+		return;
+	}
+
+	/* Keep lock counter value, update the ha->func_num to 0xFF */
+	qla4_83xx_wr_reg(ha, QLA83XX_DRV_LOCK_ID, (id | 0xFF));
+	qla4_83xx_rd_reg(ha, QLA83XX_DRV_UNLOCK);
+}
+
+void qla4_83xx_set_idc_dontreset(struct scsi_qla_host *ha)
+{
+	uint32_t idc_ctrl;
+
+	idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
+	idc_ctrl |= DONTRESET_BIT0;
+	qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, idc_ctrl);
+	DEBUG2(ql4_printk(KERN_INFO, ha, "%s: idc_ctrl = %d\n", __func__,
+			  idc_ctrl));
+}
+
+void qla4_83xx_clear_idc_dontreset(struct scsi_qla_host *ha)
+{
+	uint32_t idc_ctrl;
+
+	idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
+	idc_ctrl &= ~DONTRESET_BIT0;
+	qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, idc_ctrl);
+	DEBUG2(ql4_printk(KERN_INFO, ha, "%s: idc_ctrl = %d\n", __func__,
+			  idc_ctrl));
+}
+
+int qla4_83xx_idc_dontreset(struct scsi_qla_host *ha)
+{
+	uint32_t idc_ctrl;
+
+	idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
+	return idc_ctrl & DONTRESET_BIT0;
+}
+
+/*-------------------------IDC State Machine ---------------------*/
+
+enum {
+	UNKNOWN_CLASS = 0,
+	NIC_CLASS,
+	FCOE_CLASS,
+	ISCSI_CLASS
+};
+
+struct device_info {
+	int func_num;
+	int device_type;
+	int port_num;
+};
+
+static int qla4_83xx_can_perform_reset(struct scsi_qla_host *ha)
+{
+	uint32_t drv_active;
+	uint32_t dev_part, dev_part1, dev_part2;
+	int i;
+	struct device_info device_map[16];
+	int func_nibble;
+	int nibble;
+	int nic_present = 0;
+	int iscsi_present = 0;
+	int iscsi_func_low = 0;
+
+	/* Use the dev_partition register to determine the PCI function number
+	 * and then check drv_active register to see which driver is loaded */
+	dev_part1 = qla4_83xx_rd_reg(ha,
+				     ha->reg_tbl[QLA8XXX_CRB_DEV_PART_INFO]);
+	dev_part2 = qla4_83xx_rd_reg(ha, QLA83XX_CRB_DEV_PART_INFO2);
+	drv_active = qla4_83xx_rd_reg(ha, ha->reg_tbl[QLA8XXX_CRB_DRV_ACTIVE]);
+
+	/* Each function has 4 bits in dev_partition Info register,
+	 * Lower 2 bits - device type, Upper 2 bits - physical port number */
+	dev_part = dev_part1;
+	for (i = nibble = 0; i <= 15; i++, nibble++) {
+		func_nibble = dev_part & (0xF << (nibble * 4));
+		func_nibble >>= (nibble * 4);
+		device_map[i].func_num = i;
+		device_map[i].device_type = func_nibble & 0x3;
+		device_map[i].port_num = func_nibble & 0xC;
+
+		if (device_map[i].device_type == NIC_CLASS) {
+			if (drv_active & (1 << device_map[i].func_num)) {
+				nic_present++;
+				break;
+			}
+		} else if (device_map[i].device_type == ISCSI_CLASS) {
+			if (drv_active & (1 << device_map[i].func_num)) {
+				if (!iscsi_present ||
+				    (iscsi_present &&
+				     (iscsi_func_low > device_map[i].func_num)))
+					iscsi_func_low = device_map[i].func_num;
+
+				iscsi_present++;
+			}
+		}
+
+		/* For function_num[8..15] get info from dev_part2 register */
+		if (nibble == 7) {
+			nibble = 0;
+			dev_part = dev_part2;
+		}
+	}
+
+	/* NIC, iSCSI and FCOE are the Reset owners based on order, NIC gets
+	 * precedence over iSCSI and FCOE and iSCSI over FCOE, based on drivers
+	 * present. */
+	if (!nic_present && (ha->func_num == iscsi_func_low)) {
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "%s: can reset - NIC not present and lower iSCSI function is %d\n",
+				  __func__, ha->func_num));
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * qla4_83xx_need_reset_handler - Code to start reset sequence
+ * @ha: pointer to adapter structure
+ *
+ * Note: IDC lock must be held upon entry
+ **/
+void qla4_83xx_need_reset_handler(struct scsi_qla_host *ha)
+{
+	uint32_t dev_state, drv_state, drv_active;
+	unsigned long reset_timeout, dev_init_timeout;
+
+	ql4_printk(KERN_INFO, ha, "%s: Performing ISP error recovery\n",
+		   __func__);
+
+	if (!test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
+		DEBUG2(ql4_printk(KERN_INFO, ha, "%s: reset acknowledged\n",
+				  __func__));
+		qla4_8xxx_set_rst_ready(ha);
+
+		/* Non-reset owners ACK Reset and wait for device INIT state
+		 * as part of Reset Recovery by Reset Owner */
+		dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
+
+		do {
+			if (time_after_eq(jiffies, dev_init_timeout)) {
+				ql4_printk(KERN_INFO, ha, "%s: Non Reset owner dev init timeout\n",
+					   __func__);
+				break;
+			}
+
+			ha->isp_ops->idc_unlock(ha);
+			msleep(1000);
+			ha->isp_ops->idc_lock(ha);
+
+			dev_state = qla4_8xxx_rd_direct(ha,
+							QLA8XXX_CRB_DEV_STATE);
+		} while (dev_state == QLA8XXX_DEV_NEED_RESET);
+	} else {
+		qla4_8xxx_set_rst_ready(ha);
+		reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
+		drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
+		drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+
+		ql4_printk(KERN_INFO, ha, "%s: drv_state = 0x%x, drv_active = 0x%x\n",
+			   __func__, drv_state, drv_active);
+
+		while (drv_state != drv_active) {
+			if (time_after_eq(jiffies, reset_timeout)) {
+				ql4_printk(KERN_INFO, ha, "%s: %s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
+					   __func__, DRIVER_NAME, drv_state,
+					   drv_active);
+				break;
+			}
+
+			ha->isp_ops->idc_unlock(ha);
+			msleep(1000);
+			ha->isp_ops->idc_lock(ha);
+
+			drv_state = qla4_8xxx_rd_direct(ha,
+							QLA8XXX_CRB_DRV_STATE);
+			drv_active = qla4_8xxx_rd_direct(ha,
+							QLA8XXX_CRB_DRV_ACTIVE);
+		}
+
+		if (drv_state != drv_active) {
+			ql4_printk(KERN_INFO, ha, "%s: Reset_owner turning off drv_active of non-acking function 0x%x\n",
+				   __func__, (drv_active ^ drv_state));
+			drv_active = drv_active & drv_state;
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE,
+					    drv_active);
+		}
+
+		clear_bit(AF_8XXX_RST_OWNER, &ha->flags);
+		/* Start Reset Recovery */
+		qla4_8xxx_device_bootstrap(ha);
+	}
+}
+
+void qla4_83xx_get_idc_param(struct scsi_qla_host *ha)
+{
+	uint32_t idc_params, ret_val;
+
+	ret_val = qla4_83xx_flash_read_u32(ha, QLA83XX_IDC_PARAM_ADDR,
+					   (uint8_t *)&idc_params, 1);
+	if (ret_val == QLA_SUCCESS) {
+		ha->nx_dev_init_timeout = idc_params & 0xFFFF;
+		ha->nx_reset_timeout = (idc_params >> 16) & 0xFFFF;
+	} else {
+		ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
+		ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
+	}
+
+	DEBUG2(ql4_printk(KERN_DEBUG, ha,
+			  "%s: ha->nx_dev_init_timeout = %d, ha->nx_reset_timeout = %d\n",
+			  __func__, ha->nx_dev_init_timeout,
+			  ha->nx_reset_timeout));
+}
+
+/*-------------------------Reset Sequence Functions-----------------------*/
+
+static void qla4_83xx_dump_reset_seq_hdr(struct scsi_qla_host *ha)
+{
+	uint8_t *phdr;
+
+	if (!ha->reset_tmplt.buff) {
+		ql4_printk(KERN_ERR, ha, "%s: Error: Invalid reset_seq_template\n",
+			   __func__);
+		return;
+	}
+
+	phdr = ha->reset_tmplt.buff;
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Reset Template: 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n",
+			  *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4),
+			  *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8),
+			  *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12),
+			  *(phdr+13), *(phdr+14), *(phdr+15)));
+}
+
+static int qla4_83xx_copy_bootloader(struct scsi_qla_host *ha)
+{
+	uint8_t *p_cache;
+	uint32_t src, count, size;
+	uint64_t dest;
+	int ret_val = QLA_SUCCESS;
+
+	src = QLA83XX_BOOTLOADER_FLASH_ADDR;
+	dest = qla4_83xx_rd_reg(ha, QLA83XX_BOOTLOADER_ADDR);
+	size = qla4_83xx_rd_reg(ha, QLA83XX_BOOTLOADER_SIZE);
+
+	/* 128 bit alignment check */
+	if (size & 0xF)
+		size = (size + 16) & ~0xF;
+
+	/* 16 byte count */
+	count = size/16;
+
+	p_cache = vmalloc(size);
+	if (p_cache == NULL) {
+		ql4_printk(KERN_ERR, ha, "%s: Failed to allocate memory for boot loader cache\n",
+			   __func__);
+		ret_val = QLA_ERROR;
+		goto exit_copy_bootloader;
+	}
+
+	ret_val = qla4_83xx_lockless_flash_read_u32(ha, src, p_cache,
+						    size / sizeof(uint32_t));
+	if (ret_val == QLA_ERROR) {
+		ql4_printk(KERN_ERR, ha, "%s: Error reading firmware from flash\n",
+			   __func__);
+		goto exit_copy_error;
+	}
+	DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Read firmware from flash\n",
+			  __func__));
+
+	/* 128 bit/16 byte write to MS memory */
+	ret_val = qla4_83xx_ms_mem_write_128b(ha, dest, (uint32_t *)p_cache,
+					      count);
+	if (ret_val == QLA_ERROR) {
+		ql4_printk(KERN_ERR, ha, "%s: Error writing firmware to MS\n",
+			   __func__);
+		goto exit_copy_error;
+	}
+
+	DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Wrote firmware size %d to MS\n",
+			  __func__, size));
+
+exit_copy_error:
+	vfree(p_cache);
+
+exit_copy_bootloader:
+	return ret_val;
+}
+
+static int qla4_83xx_check_cmd_peg_status(struct scsi_qla_host *ha)
+{
+	uint32_t val, ret_val = QLA_ERROR;
+	int retries = CRB_CMDPEG_CHECK_RETRY_COUNT;
+
+	do {
+		val = qla4_83xx_rd_reg(ha, QLA83XX_CMDPEG_STATE);
+		if (val == PHAN_INITIALIZE_COMPLETE) {
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "%s: Command Peg initialization complete. State=0x%x\n",
+					  __func__, val));
+			ret_val = QLA_SUCCESS;
+			break;
+		}
+		msleep(CRB_CMDPEG_CHECK_DELAY);
+	} while (--retries);
+
+	return ret_val;
+}
+
+/**
+ * qla4_83xx_poll_reg - Poll the given CRB addr for duration msecs till
+ * value read ANDed with test_mask is equal to test_result.
+ *
+ * @ha : Pointer to adapter structure
+ * @addr : CRB register address
+ * @duration : Poll for total of "duration" msecs
+ * @test_mask : Mask value read with "test_mask"
+ * @test_result : Compare (value&test_mask) with test_result.
+ **/
+static int qla4_83xx_poll_reg(struct scsi_qla_host *ha, uint32_t addr,
+			      int duration, uint32_t test_mask,
+			      uint32_t test_result)
+{
+	uint32_t value;
+	uint8_t retries;
+	int ret_val = QLA_SUCCESS;
+
+	ret_val = qla4_83xx_rd_reg_indirect(ha, addr, &value);
+	if (ret_val == QLA_ERROR)
+		goto exit_poll_reg;
+
+	retries = duration / 10;
+	do {
+		if ((value & test_mask) != test_result) {
+			msleep(duration / 10);
+			ret_val = qla4_83xx_rd_reg_indirect(ha, addr, &value);
+			if (ret_val == QLA_ERROR)
+				goto exit_poll_reg;
+
+			ret_val = QLA_ERROR;
+		} else {
+			ret_val = QLA_SUCCESS;
+			break;
+		}
+	} while (retries--);
+
+exit_poll_reg:
+	if (ret_val == QLA_ERROR) {
+		ha->reset_tmplt.seq_error++;
+		ql4_printk(KERN_ERR, ha, "%s: Poll Failed:  0x%08x 0x%08x 0x%08x\n",
+			   __func__, value, test_mask, test_result);
+	}
+
+	return ret_val;
+}
+
+static int qla4_83xx_reset_seq_checksum_test(struct scsi_qla_host *ha)
+{
+	uint32_t sum =  0;
+	uint16_t *buff = (uint16_t *)ha->reset_tmplt.buff;
+	int u16_count =  ha->reset_tmplt.hdr->size / sizeof(uint16_t);
+	int ret_val;
+
+	while (u16_count-- > 0)
+		sum += *buff++;
+
+	while (sum >> 16)
+		sum = (sum & 0xFFFF) +  (sum >> 16);
+
+	/* checksum of 0 indicates a valid template */
+	if (~sum) {
+		ret_val = QLA_SUCCESS;
+	} else {
+		ql4_printk(KERN_ERR, ha, "%s: Reset seq checksum failed\n",
+			   __func__);
+		ret_val = QLA_ERROR;
+	}
+
+	return ret_val;
+}
+
+/**
+ * qla4_83xx_read_reset_template - Read Reset Template from Flash
+ * @ha: Pointer to adapter structure
+ **/
+void qla4_83xx_read_reset_template(struct scsi_qla_host *ha)
+{
+	uint8_t *p_buff;
+	uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size;
+	uint32_t ret_val;
+
+	ha->reset_tmplt.seq_error = 0;
+	ha->reset_tmplt.buff = vmalloc(QLA83XX_RESTART_TEMPLATE_SIZE);
+	if (ha->reset_tmplt.buff == NULL) {
+		ql4_printk(KERN_ERR, ha, "%s: Failed to allocate reset template resources\n",
+			   __func__);
+		goto exit_read_reset_template;
+	}
+
+	p_buff = ha->reset_tmplt.buff;
+	addr = QLA83XX_RESET_TEMPLATE_ADDR;
+
+	tmplt_hdr_def_size = sizeof(struct qla4_83xx_reset_template_hdr) /
+				    sizeof(uint32_t);
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "%s: Read template hdr size %d from Flash\n",
+			  __func__, tmplt_hdr_def_size));
+
+	/* Copy template header from flash */
+	ret_val = qla4_83xx_flash_read_u32(ha, addr, p_buff,
+					   tmplt_hdr_def_size);
+	if (ret_val != QLA_SUCCESS) {
+		ql4_printk(KERN_ERR, ha, "%s: Failed to read reset template\n",
+			   __func__);
+		goto exit_read_template_error;
+	}
+
+	ha->reset_tmplt.hdr =
+		(struct qla4_83xx_reset_template_hdr *)ha->reset_tmplt.buff;
+
+	/* Validate the template header size and signature */
+	tmplt_hdr_size = ha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t);
+	if ((tmplt_hdr_size != tmplt_hdr_def_size) ||
+	    (ha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) {
+		ql4_printk(KERN_ERR, ha, "%s: Template Header size %d is invalid, tmplt_hdr_def_size %d\n",
+			   __func__, tmplt_hdr_size, tmplt_hdr_def_size);
+		goto exit_read_template_error;
+	}
+
+	addr = QLA83XX_RESET_TEMPLATE_ADDR + ha->reset_tmplt.hdr->hdr_size;
+	p_buff = ha->reset_tmplt.buff + ha->reset_tmplt.hdr->hdr_size;
+	tmplt_hdr_def_size = (ha->reset_tmplt.hdr->size -
+			      ha->reset_tmplt.hdr->hdr_size) / sizeof(uint32_t);
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "%s: Read rest of the template size %d\n",
+			  __func__, ha->reset_tmplt.hdr->size));
+
+	/* Copy rest of the template */
+	ret_val = qla4_83xx_flash_read_u32(ha, addr, p_buff,
+					   tmplt_hdr_def_size);
+	if (ret_val != QLA_SUCCESS) {
+		ql4_printk(KERN_ERR, ha, "%s: Failed to read reset tempelate\n",
+			   __func__);
+		goto exit_read_template_error;
+	}
+
+	/* Integrity check */
+	if (qla4_83xx_reset_seq_checksum_test(ha)) {
+		ql4_printk(KERN_ERR, ha, "%s: Reset Seq checksum failed!\n",
+			   __func__);
+		goto exit_read_template_error;
+	}
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "%s: Reset Seq checksum passed, Get stop, start and init seq offsets\n",
+			  __func__));
+
+	/* Get STOP, START, INIT sequence offsets */
+	ha->reset_tmplt.init_offset = ha->reset_tmplt.buff +
+				      ha->reset_tmplt.hdr->init_seq_offset;
+	ha->reset_tmplt.start_offset = ha->reset_tmplt.buff +
+				       ha->reset_tmplt.hdr->start_seq_offset;
+	ha->reset_tmplt.stop_offset = ha->reset_tmplt.buff +
+				      ha->reset_tmplt.hdr->hdr_size;
+	qla4_83xx_dump_reset_seq_hdr(ha);
+
+	goto exit_read_reset_template;
+
+exit_read_template_error:
+	vfree(ha->reset_tmplt.buff);
+
+exit_read_reset_template:
+	return;
+}
+
+/**
+ * qla4_83xx_read_write_crb_reg - Read from raddr and write value to waddr.
+ *
+ * @ha : Pointer to adapter structure
+ * @raddr : CRB address to read from
+ * @waddr : CRB address to write to
+ **/
+static void qla4_83xx_read_write_crb_reg(struct scsi_qla_host *ha,
+					 uint32_t raddr, uint32_t waddr)
+{
+	uint32_t value;
+
+	qla4_83xx_rd_reg_indirect(ha, raddr, &value);
+	qla4_83xx_wr_reg_indirect(ha, waddr, value);
+}
+
+/**
+ * qla4_83xx_rmw_crb_reg - Read Modify Write crb register
+ *
+ * This function read value from raddr, AND with test_mask,
+ * Shift Left,Right/OR/XOR with values RMW header and write value to waddr.
+ *
+ * @ha : Pointer to adapter structure
+ * @raddr : CRB address to read from
+ * @waddr : CRB address to write to
+ * @p_rmw_hdr : header with shift/or/xor values.
+ **/
+static void qla4_83xx_rmw_crb_reg(struct scsi_qla_host *ha, uint32_t raddr,
+				  uint32_t waddr,
+				  struct qla4_83xx_rmw *p_rmw_hdr)
+{
+	uint32_t value;
+
+	if (p_rmw_hdr->index_a)
+		value = ha->reset_tmplt.array[p_rmw_hdr->index_a];
+	else
+		qla4_83xx_rd_reg_indirect(ha, raddr, &value);
+
+	value &= p_rmw_hdr->test_mask;
+	value <<= p_rmw_hdr->shl;
+	value >>= p_rmw_hdr->shr;
+	value |= p_rmw_hdr->or_value;
+	value ^= p_rmw_hdr->xor_value;
+
+	qla4_83xx_wr_reg_indirect(ha, waddr, value);
+
+	return;
+}
+
+static void qla4_83xx_write_list(struct scsi_qla_host *ha,
+				 struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	struct qla4_83xx_entry *p_entry;
+	uint32_t i;
+
+	p_entry = (struct qla4_83xx_entry *)
+		  ((char *)p_hdr + sizeof(struct qla4_83xx_reset_entry_hdr));
+
+	for (i = 0; i < p_hdr->count; i++, p_entry++) {
+		qla4_83xx_wr_reg_indirect(ha, p_entry->arg1, p_entry->arg2);
+		if (p_hdr->delay)
+			udelay((uint32_t)(p_hdr->delay));
+	}
+}
+
+static void qla4_83xx_read_write_list(struct scsi_qla_host *ha,
+				      struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	struct qla4_83xx_entry *p_entry;
+	uint32_t i;
+
+	p_entry = (struct qla4_83xx_entry *)
+		  ((char *)p_hdr + sizeof(struct qla4_83xx_reset_entry_hdr));
+
+	for (i = 0; i < p_hdr->count; i++, p_entry++) {
+		qla4_83xx_read_write_crb_reg(ha, p_entry->arg1, p_entry->arg2);
+		if (p_hdr->delay)
+			udelay((uint32_t)(p_hdr->delay));
+	}
+}
+
+static void qla4_83xx_poll_list(struct scsi_qla_host *ha,
+				struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	long delay;
+	struct qla4_83xx_entry *p_entry;
+	struct qla4_83xx_poll *p_poll;
+	uint32_t i;
+	uint32_t value;
+
+	p_poll = (struct qla4_83xx_poll *)
+		 ((char *)p_hdr + sizeof(struct qla4_83xx_reset_entry_hdr));
+
+	/* Entries start after 8 byte qla4_83xx_poll, poll header contains
+	 * the test_mask, test_value. */
+	p_entry = (struct qla4_83xx_entry *)((char *)p_poll +
+					     sizeof(struct qla4_83xx_poll));
+
+	delay = (long)p_hdr->delay;
+	if (!delay) {
+		for (i = 0; i < p_hdr->count; i++, p_entry++) {
+			qla4_83xx_poll_reg(ha, p_entry->arg1, delay,
+					   p_poll->test_mask,
+					   p_poll->test_value);
+		}
+	} else {
+		for (i = 0; i < p_hdr->count; i++, p_entry++) {
+			if (qla4_83xx_poll_reg(ha, p_entry->arg1, delay,
+					       p_poll->test_mask,
+					       p_poll->test_value)) {
+				qla4_83xx_rd_reg_indirect(ha, p_entry->arg1,
+							  &value);
+				qla4_83xx_rd_reg_indirect(ha, p_entry->arg2,
+							  &value);
+			}
+		}
+	}
+}
+
+static void qla4_83xx_poll_write_list(struct scsi_qla_host *ha,
+				      struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	long delay;
+	struct qla4_83xx_quad_entry *p_entry;
+	struct qla4_83xx_poll *p_poll;
+	uint32_t i;
+
+	p_poll = (struct qla4_83xx_poll *)
+		 ((char *)p_hdr + sizeof(struct qla4_83xx_reset_entry_hdr));
+	p_entry = (struct qla4_83xx_quad_entry *)
+		  ((char *)p_poll + sizeof(struct qla4_83xx_poll));
+	delay = (long)p_hdr->delay;
+
+	for (i = 0; i < p_hdr->count; i++, p_entry++) {
+		qla4_83xx_wr_reg_indirect(ha, p_entry->dr_addr,
+					  p_entry->dr_value);
+		qla4_83xx_wr_reg_indirect(ha, p_entry->ar_addr,
+					  p_entry->ar_value);
+		if (delay) {
+			if (qla4_83xx_poll_reg(ha, p_entry->ar_addr, delay,
+					       p_poll->test_mask,
+					       p_poll->test_value)) {
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+						  "%s: Timeout Error: poll list, item_num %d, entry_num %d\n",
+						  __func__, i,
+						  ha->reset_tmplt.seq_index));
+			}
+		}
+	}
+}
+
+static void qla4_83xx_read_modify_write(struct scsi_qla_host *ha,
+					struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	struct qla4_83xx_entry *p_entry;
+	struct qla4_83xx_rmw *p_rmw_hdr;
+	uint32_t i;
+
+	p_rmw_hdr = (struct qla4_83xx_rmw *)
+		    ((char *)p_hdr + sizeof(struct qla4_83xx_reset_entry_hdr));
+	p_entry = (struct qla4_83xx_entry *)
+		  ((char *)p_rmw_hdr + sizeof(struct qla4_83xx_rmw));
+
+	for (i = 0; i < p_hdr->count; i++, p_entry++) {
+		qla4_83xx_rmw_crb_reg(ha, p_entry->arg1, p_entry->arg2,
+				      p_rmw_hdr);
+		if (p_hdr->delay)
+			udelay((uint32_t)(p_hdr->delay));
+	}
+}
+
+static void qla4_83xx_pause(struct scsi_qla_host *ha,
+			    struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	if (p_hdr->delay)
+		mdelay((uint32_t)((long)p_hdr->delay));
+}
+
+static void qla4_83xx_poll_read_list(struct scsi_qla_host *ha,
+				     struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	long delay;
+	int index;
+	struct qla4_83xx_quad_entry *p_entry;
+	struct qla4_83xx_poll *p_poll;
+	uint32_t i;
+	uint32_t value;
+
+	p_poll = (struct qla4_83xx_poll *)
+		 ((char *)p_hdr + sizeof(struct qla4_83xx_reset_entry_hdr));
+	p_entry = (struct qla4_83xx_quad_entry *)
+		  ((char *)p_poll + sizeof(struct qla4_83xx_poll));
+	delay = (long)p_hdr->delay;
+
+	for (i = 0; i < p_hdr->count; i++, p_entry++) {
+		qla4_83xx_wr_reg_indirect(ha, p_entry->ar_addr,
+					  p_entry->ar_value);
+		if (delay) {
+			if (qla4_83xx_poll_reg(ha, p_entry->ar_addr, delay,
+					       p_poll->test_mask,
+					       p_poll->test_value)) {
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+						  "%s: Timeout Error: poll list, Item_num %d, entry_num %d\n",
+						  __func__, i,
+						  ha->reset_tmplt.seq_index));
+			} else {
+				index = ha->reset_tmplt.array_index;
+				qla4_83xx_rd_reg_indirect(ha, p_entry->dr_addr,
+							  &value);
+				ha->reset_tmplt.array[index++] = value;
+
+				if (index == QLA83XX_MAX_RESET_SEQ_ENTRIES)
+					ha->reset_tmplt.array_index = 1;
+			}
+		}
+	}
+}
+
+static void qla4_83xx_seq_end(struct scsi_qla_host *ha,
+			      struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	ha->reset_tmplt.seq_end = 1;
+}
+
+static void qla4_83xx_template_end(struct scsi_qla_host *ha,
+				   struct qla4_83xx_reset_entry_hdr *p_hdr)
+{
+	ha->reset_tmplt.template_end = 1;
+
+	if (ha->reset_tmplt.seq_error == 0) {
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "%s: Reset sequence completed SUCCESSFULLY.\n",
+				  __func__));
+	} else {
+		ql4_printk(KERN_ERR, ha, "%s: Reset sequence completed with some timeout errors.\n",
+			   __func__);
+	}
+}
+
+/**
+ * qla4_83xx_process_reset_template - Process reset template.
+ *
+ * Process all entries in reset template till entry with SEQ_END opcode,
+ * which indicates end of the reset template processing. Each entry has a
+ * Reset Entry header, entry opcode/command, with size of the entry, number
+ * of entries in sub-sequence and delay in microsecs or timeout in millisecs.
+ *
+ * @ha : Pointer to adapter structure
+ * @p_buff : Common reset entry header.
+ **/
+static void qla4_83xx_process_reset_template(struct scsi_qla_host *ha,
+					     char *p_buff)
+{
+	int index, entries;
+	struct qla4_83xx_reset_entry_hdr *p_hdr;
+	char *p_entry = p_buff;
+
+	ha->reset_tmplt.seq_end = 0;
+	ha->reset_tmplt.template_end = 0;
+	entries = ha->reset_tmplt.hdr->entries;
+	index = ha->reset_tmplt.seq_index;
+
+	for (; (!ha->reset_tmplt.seq_end) && (index  < entries); index++) {
+
+		p_hdr = (struct qla4_83xx_reset_entry_hdr *)p_entry;
+		switch (p_hdr->cmd) {
+		case OPCODE_NOP:
+			break;
+		case OPCODE_WRITE_LIST:
+			qla4_83xx_write_list(ha, p_hdr);
+			break;
+		case OPCODE_READ_WRITE_LIST:
+			qla4_83xx_read_write_list(ha, p_hdr);
+			break;
+		case OPCODE_POLL_LIST:
+			qla4_83xx_poll_list(ha, p_hdr);
+			break;
+		case OPCODE_POLL_WRITE_LIST:
+			qla4_83xx_poll_write_list(ha, p_hdr);
+			break;
+		case OPCODE_READ_MODIFY_WRITE:
+			qla4_83xx_read_modify_write(ha, p_hdr);
+			break;
+		case OPCODE_SEQ_PAUSE:
+			qla4_83xx_pause(ha, p_hdr);
+			break;
+		case OPCODE_SEQ_END:
+			qla4_83xx_seq_end(ha, p_hdr);
+			break;
+		case OPCODE_TMPL_END:
+			qla4_83xx_template_end(ha, p_hdr);
+			break;
+		case OPCODE_POLL_READ_LIST:
+			qla4_83xx_poll_read_list(ha, p_hdr);
+			break;
+		default:
+			ql4_printk(KERN_ERR, ha, "%s: Unknown command ==> 0x%04x on entry = %d\n",
+				   __func__, p_hdr->cmd, index);
+			break;
+		}
+
+		/* Set pointer to next entry in the sequence. */
+		p_entry += p_hdr->size;
+	}
+
+	ha->reset_tmplt.seq_index = index;
+}
+
+static void qla4_83xx_process_stop_seq(struct scsi_qla_host *ha)
+{
+	ha->reset_tmplt.seq_index = 0;
+	qla4_83xx_process_reset_template(ha, ha->reset_tmplt.stop_offset);
+
+	if (ha->reset_tmplt.seq_end != 1)
+		ql4_printk(KERN_ERR, ha, "%s: Abrupt STOP Sub-Sequence end.\n",
+			   __func__);
+}
+
+static void qla4_83xx_process_start_seq(struct scsi_qla_host *ha)
+{
+	qla4_83xx_process_reset_template(ha, ha->reset_tmplt.start_offset);
+
+	if (ha->reset_tmplt.template_end != 1)
+		ql4_printk(KERN_ERR, ha, "%s: Abrupt START Sub-Sequence end.\n",
+			   __func__);
+}
+
+static void qla4_83xx_process_init_seq(struct scsi_qla_host *ha)
+{
+	qla4_83xx_process_reset_template(ha, ha->reset_tmplt.init_offset);
+
+	if (ha->reset_tmplt.seq_end != 1)
+		ql4_printk(KERN_ERR, ha, "%s: Abrupt INIT Sub-Sequence end.\n",
+			   __func__);
+}
+
+static int qla4_83xx_restart(struct scsi_qla_host *ha)
+{
+	int ret_val = QLA_SUCCESS;
+
+	qla4_83xx_process_stop_seq(ha);
+
+	/* Collect minidump*/
+	if (!test_and_clear_bit(AF_83XX_NO_FW_DUMP, &ha->flags))
+		qla4_8xxx_get_minidump(ha);
+
+	qla4_83xx_process_init_seq(ha);
+
+	if (qla4_83xx_copy_bootloader(ha)) {
+		ql4_printk(KERN_ERR, ha, "%s: Copy bootloader, firmware restart failed!\n",
+			   __func__);
+		ret_val = QLA_ERROR;
+		goto exit_restart;
+	}
+
+	qla4_83xx_wr_reg(ha, QLA83XX_FW_IMAGE_VALID, QLA83XX_BOOT_FROM_FLASH);
+	qla4_83xx_process_start_seq(ha);
+
+exit_restart:
+	return ret_val;
+}
+
+int qla4_83xx_start_firmware(struct scsi_qla_host *ha)
+{
+	int ret_val = QLA_SUCCESS;
+
+	ret_val = qla4_83xx_restart(ha);
+	if (ret_val == QLA_ERROR) {
+		ql4_printk(KERN_ERR, ha, "%s: Restart error\n", __func__);
+		goto exit_start_fw;
+	} else {
+		DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Restart done\n",
+				  __func__));
+	}
+
+	ret_val = qla4_83xx_check_cmd_peg_status(ha);
+	if (ret_val == QLA_ERROR)
+		ql4_printk(KERN_ERR, ha, "%s: Peg not initialized\n",
+			   __func__);
+
+exit_start_fw:
+	return ret_val;
+}
+
+/*----------------------Interrupt Related functions ---------------------*/
+
+void qla4_83xx_disable_intrs(struct scsi_qla_host *ha)
+{
+	uint32_t mb_int, ret;
+
+	if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
+		qla4_8xxx_mbx_intr_disable(ha);
+
+	ret = readl(&ha->qla4_83xx_reg->mbox_int);
+	mb_int = ret & ~INT_ENABLE_FW_MB;
+	writel(mb_int, &ha->qla4_83xx_reg->mbox_int);
+	writel(1, &ha->qla4_83xx_reg->leg_int_mask);
+}
+
+void qla4_83xx_enable_intrs(struct scsi_qla_host *ha)
+{
+	uint32_t mb_int;
+
+	qla4_8xxx_mbx_intr_enable(ha);
+	mb_int = INT_ENABLE_FW_MB;
+	writel(mb_int, &ha->qla4_83xx_reg->mbox_int);
+	writel(0, &ha->qla4_83xx_reg->leg_int_mask);
+
+	set_bit(AF_INTERRUPTS_ON, &ha->flags);
+}
+
+void qla4_83xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
+			      int incount)
+{
+	int i;
+
+	/* Load all mailbox registers, except mailbox 0. */
+	for (i = 1; i < incount; i++)
+		writel(mbx_cmd[i], &ha->qla4_83xx_reg->mailbox_in[i]);
+
+	writel(mbx_cmd[0], &ha->qla4_83xx_reg->mailbox_in[0]);
+
+	/* Set Host Interrupt register to 1, to tell the firmware that
+	 * a mailbox command is pending. Firmware after reading the
+	 * mailbox command, clears the host interrupt register */
+	writel(HINT_MBX_INT_PENDING, &ha->qla4_83xx_reg->host_intr);
+}
+
+void qla4_83xx_process_mbox_intr(struct scsi_qla_host *ha, int outcount)
+{
+	int intr_status;
+
+	intr_status = readl(&ha->qla4_83xx_reg->risc_intr);
+	if (intr_status) {
+		ha->mbox_status_count = outcount;
+		ha->isp_ops->interrupt_service_routine(ha, intr_status);
+	}
+}
+
+/**
+ * qla4_83xx_isp_reset - Resets ISP and aborts all outstanding commands.
+ * @ha: pointer to host adapter structure.
+ **/
+int qla4_83xx_isp_reset(struct scsi_qla_host *ha)
+{
+	int rval;
+	uint32_t dev_state;
+
+	ha->isp_ops->idc_lock(ha);
+	dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
+
+	if (ql4xdontresethba)
+		qla4_83xx_set_idc_dontreset(ha);
+
+	if (dev_state == QLA8XXX_DEV_READY) {
+		/* If IDC_CTRL DONTRESETHBA_BIT0 is set dont do reset
+		 * recovery */
+		if (qla4_83xx_idc_dontreset(ha) == DONTRESET_BIT0) {
+			ql4_printk(KERN_ERR, ha, "%s: Reset recovery disabled\n",
+				   __func__);
+			rval = QLA_ERROR;
+			goto exit_isp_reset;
+		}
+
+		DEBUG2(ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET\n",
+				  __func__));
+		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+				    QLA8XXX_DEV_NEED_RESET);
+
+	} else {
+		/* If device_state is NEED_RESET, go ahead with
+		 * Reset,irrespective of ql4xdontresethba. This is to allow a
+		 * non-reset-owner to force a reset. Non-reset-owner sets
+		 * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset
+		 * and then forces a Reset by setting device_state to
+		 * NEED_RESET. */
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "%s: HW state already set to NEED_RESET\n",
+				  __func__));
+	}
+
+	/* For ISP8324, Reset owner is NIC, iSCSI or FCOE based on priority
+	 * and which drivers are present. Unlike ISP8022, the function setting
+	 * NEED_RESET, may not be the Reset owner. */
+	if (qla4_83xx_can_perform_reset(ha))
+		set_bit(AF_8XXX_RST_OWNER, &ha->flags);
+
+	ha->isp_ops->idc_unlock(ha);
+	rval = qla4_8xxx_device_state_handler(ha);
+
+	ha->isp_ops->idc_lock(ha);
+	qla4_8xxx_clear_rst_ready(ha);
+exit_isp_reset:
+	ha->isp_ops->idc_unlock(ha);
+
+	if (rval == QLA_SUCCESS)
+		clear_bit(AF_FW_RECOVERY, &ha->flags);
+
+	return rval;
+}
+
+static void qla4_83xx_dump_pause_control_regs(struct scsi_qla_host *ha)
+{
+	u32 val = 0, val1 = 0;
+	int i, status = QLA_SUCCESS;
+
+	status = qla4_83xx_rd_reg_indirect(ha, QLA83XX_SRE_SHIM_CONTROL, &val);
+	DEBUG2(ql4_printk(KERN_INFO, ha, "SRE-Shim Ctrl:0x%x\n", val));
+
+	/* Port 0 Rx Buffer Pause Threshold Registers. */
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+		"Port 0 Rx Buffer Pause Threshold Registers[TC7..TC0]:"));
+	for (i = 0; i < 8; i++) {
+		status = qla4_83xx_rd_reg_indirect(ha,
+				QLA83XX_PORT0_RXB_PAUSE_THRS + (i * 0x4), &val);
+		DEBUG2(pr_info("0x%x ", val));
+	}
+
+	DEBUG2(pr_info("\n"));
+
+	/* Port 1 Rx Buffer Pause Threshold Registers. */
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+		"Port 1 Rx Buffer Pause Threshold Registers[TC7..TC0]:"));
+	for (i = 0; i < 8; i++) {
+		status = qla4_83xx_rd_reg_indirect(ha,
+				QLA83XX_PORT1_RXB_PAUSE_THRS + (i * 0x4), &val);
+		DEBUG2(pr_info("0x%x  ", val));
+	}
+
+	DEBUG2(pr_info("\n"));
+
+	/* Port 0 RxB Traffic Class Max Cell Registers. */
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+		"Port 0 RxB Traffic Class Max Cell Registers[3..0]:"));
+	for (i = 0; i < 4; i++) {
+		status = qla4_83xx_rd_reg_indirect(ha,
+			       QLA83XX_PORT0_RXB_TC_MAX_CELL + (i * 0x4), &val);
+		DEBUG2(pr_info("0x%x  ", val));
+	}
+
+	DEBUG2(pr_info("\n"));
+
+	/* Port 1 RxB Traffic Class Max Cell Registers. */
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+		"Port 1 RxB Traffic Class Max Cell Registers[3..0]:"));
+	for (i = 0; i < 4; i++) {
+		status = qla4_83xx_rd_reg_indirect(ha,
+			       QLA83XX_PORT1_RXB_TC_MAX_CELL + (i * 0x4), &val);
+		DEBUG2(pr_info("0x%x  ", val));
+	}
+
+	DEBUG2(pr_info("\n"));
+
+	/* Port 0 RxB Rx Traffic Class Stats. */
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Port 0 RxB Rx Traffic Class Stats [TC7..TC0]"));
+	for (i = 7; i >= 0; i--) {
+		status = qla4_83xx_rd_reg_indirect(ha,
+						   QLA83XX_PORT0_RXB_TC_STATS,
+						   &val);
+		val &= ~(0x7 << 29);    /* Reset bits 29 to 31 */
+		qla4_83xx_wr_reg_indirect(ha, QLA83XX_PORT0_RXB_TC_STATS,
+					  (val | (i << 29)));
+		status = qla4_83xx_rd_reg_indirect(ha,
+						   QLA83XX_PORT0_RXB_TC_STATS,
+						   &val);
+		DEBUG2(pr_info("0x%x  ", val));
+	}
+
+	DEBUG2(pr_info("\n"));
+
+	/* Port 1 RxB Rx Traffic Class Stats. */
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Port 1 RxB Rx Traffic Class Stats [TC7..TC0]"));
+	for (i = 7; i >= 0; i--) {
+		status = qla4_83xx_rd_reg_indirect(ha,
+						   QLA83XX_PORT1_RXB_TC_STATS,
+						   &val);
+		val &= ~(0x7 << 29);    /* Reset bits 29 to 31 */
+		qla4_83xx_wr_reg_indirect(ha, QLA83XX_PORT1_RXB_TC_STATS,
+					  (val | (i << 29)));
+		status = qla4_83xx_rd_reg_indirect(ha,
+						   QLA83XX_PORT1_RXB_TC_STATS,
+						   &val);
+		DEBUG2(pr_info("0x%x  ", val));
+	}
+
+	DEBUG2(pr_info("\n"));
+
+	status = qla4_83xx_rd_reg_indirect(ha, QLA83XX_PORT2_IFB_PAUSE_THRS,
+					   &val);
+	status = qla4_83xx_rd_reg_indirect(ha, QLA83XX_PORT3_IFB_PAUSE_THRS,
+					   &val1);
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "IFB-Pause Thresholds: Port 2:0x%x, Port 3:0x%x\n",
+			  val, val1));
+}
+
+static void __qla4_83xx_disable_pause(struct scsi_qla_host *ha)
+{
+	int i;
+
+	/* set SRE-Shim Control Register */
+	qla4_83xx_wr_reg_indirect(ha, QLA83XX_SRE_SHIM_CONTROL,
+				  QLA83XX_SET_PAUSE_VAL);
+
+	for (i = 0; i < 8; i++) {
+		/* Port 0 Rx Buffer Pause Threshold Registers. */
+		qla4_83xx_wr_reg_indirect(ha,
+				      QLA83XX_PORT0_RXB_PAUSE_THRS + (i * 0x4),
+				      QLA83XX_SET_PAUSE_VAL);
+		/* Port 1 Rx Buffer Pause Threshold Registers. */
+		qla4_83xx_wr_reg_indirect(ha,
+				      QLA83XX_PORT1_RXB_PAUSE_THRS + (i * 0x4),
+				      QLA83XX_SET_PAUSE_VAL);
+	}
+
+	for (i = 0; i < 4; i++) {
+		/* Port 0 RxB Traffic Class Max Cell Registers. */
+		qla4_83xx_wr_reg_indirect(ha,
+				     QLA83XX_PORT0_RXB_TC_MAX_CELL + (i * 0x4),
+				     QLA83XX_SET_TC_MAX_CELL_VAL);
+		/* Port 1 RxB Traffic Class Max Cell Registers. */
+		qla4_83xx_wr_reg_indirect(ha,
+				     QLA83XX_PORT1_RXB_TC_MAX_CELL + (i * 0x4),
+				     QLA83XX_SET_TC_MAX_CELL_VAL);
+	}
+
+	qla4_83xx_wr_reg_indirect(ha, QLA83XX_PORT2_IFB_PAUSE_THRS,
+				  QLA83XX_SET_PAUSE_VAL);
+	qla4_83xx_wr_reg_indirect(ha, QLA83XX_PORT3_IFB_PAUSE_THRS,
+				  QLA83XX_SET_PAUSE_VAL);
+
+	ql4_printk(KERN_INFO, ha, "Disabled pause frames successfully.\n");
+}
+
+void qla4_83xx_disable_pause(struct scsi_qla_host *ha)
+{
+	ha->isp_ops->idc_lock(ha);
+	qla4_83xx_dump_pause_control_regs(ha);
+	__qla4_83xx_disable_pause(ha);
+	ha->isp_ops->idc_unlock(ha);
+}
diff --git a/drivers/scsi/qla4xxx/ql4_83xx.h b/drivers/scsi/qla4xxx/ql4_83xx.h
new file mode 100644
index 00000000000..6a00f903f2a
--- /dev/null
+++ b/drivers/scsi/qla4xxx/ql4_83xx.h
@@ -0,0 +1,283 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c)  2003-2012 QLogic Corporation
+ *
+ * See LICENSE.qla4xxx for copyright and licensing details.
+ */
+
+#ifndef __QL483XX_H
+#define __QL483XX_H
+
+/* Indirectly Mapped Registers */
+#define QLA83XX_FLASH_SPI_STATUS	0x2808E010
+#define QLA83XX_FLASH_SPI_CONTROL	0x2808E014
+#define QLA83XX_FLASH_STATUS		0x42100004
+#define QLA83XX_FLASH_CONTROL		0x42110004
+#define QLA83XX_FLASH_ADDR		0x42110008
+#define QLA83XX_FLASH_WRDATA		0x4211000C
+#define QLA83XX_FLASH_RDDATA		0x42110018
+#define QLA83XX_FLASH_DIRECT_WINDOW	0x42110030
+#define QLA83XX_FLASH_DIRECT_DATA(DATA) (0x42150000 | (0x0000FFFF&DATA))
+
+/* Directly Mapped Registers in 83xx register table */
+
+/* Flash access regs */
+#define QLA83XX_FLASH_LOCK		0x3850
+#define QLA83XX_FLASH_UNLOCK		0x3854
+#define QLA83XX_FLASH_LOCK_ID		0x3500
+
+/* Driver Lock regs */
+#define QLA83XX_DRV_LOCK		0x3868
+#define QLA83XX_DRV_UNLOCK		0x386C
+#define QLA83XX_DRV_LOCK_ID		0x3504
+#define QLA83XX_DRV_LOCKRECOVERY	0x379C
+
+/* IDC version */
+#define QLA83XX_IDC_VER_MAJ_VALUE       0x1
+#define QLA83XX_IDC_VER_MIN_VALUE       0x0
+
+/* IDC Registers : Driver Coexistence Defines */
+#define QLA83XX_CRB_IDC_VER_MAJOR	0x3780
+#define QLA83XX_CRB_IDC_VER_MINOR	0x3798
+#define QLA83XX_IDC_DRV_CTRL		0x3790
+#define QLA83XX_IDC_DRV_AUDIT		0x3794
+#define QLA83XX_SRE_SHIM_CONTROL	0x0D200284
+#define QLA83XX_PORT0_RXB_PAUSE_THRS	0x0B2003A4
+#define QLA83XX_PORT1_RXB_PAUSE_THRS	0x0B2013A4
+#define QLA83XX_PORT0_RXB_TC_MAX_CELL	0x0B200388
+#define QLA83XX_PORT1_RXB_TC_MAX_CELL	0x0B201388
+#define QLA83XX_PORT0_RXB_TC_STATS	0x0B20039C
+#define QLA83XX_PORT1_RXB_TC_STATS	0x0B20139C
+#define QLA83XX_PORT2_IFB_PAUSE_THRS	0x0B200704
+#define QLA83XX_PORT3_IFB_PAUSE_THRS	0x0B201704
+
+/* set value to pause threshold value */
+#define QLA83XX_SET_PAUSE_VAL		0x0
+#define QLA83XX_SET_TC_MAX_CELL_VAL	0x03FF03FF
+
+/* qla_83xx_reg_tbl registers */
+#define QLA83XX_PEG_HALT_STATUS1	0x34A8
+#define QLA83XX_PEG_HALT_STATUS2	0x34AC
+#define QLA83XX_PEG_ALIVE_COUNTER	0x34B0 /* FW_HEARTBEAT */
+#define QLA83XX_FW_CAPABILITIES		0x3528
+#define QLA83XX_CRB_DRV_ACTIVE		0x3788 /* IDC_DRV_PRESENCE */
+#define QLA83XX_CRB_DEV_STATE		0x3784 /* IDC_DEV_STATE */
+#define QLA83XX_CRB_DRV_STATE		0x378C /* IDC_DRV_ACK */
+#define QLA83XX_CRB_DRV_SCRATCH		0x3548
+#define QLA83XX_CRB_DEV_PART_INFO1	0x37E0
+#define QLA83XX_CRB_DEV_PART_INFO2	0x37E4
+
+#define QLA83XX_FW_VER_MAJOR		0x3550
+#define QLA83XX_FW_VER_MINOR		0x3554
+#define QLA83XX_FW_VER_SUB		0x3558
+#define QLA83XX_NPAR_STATE		0x359C
+#define QLA83XX_FW_IMAGE_VALID		0x35FC
+#define QLA83XX_CMDPEG_STATE		0x3650
+#define QLA83XX_ASIC_TEMP		0x37B4
+#define QLA83XX_FW_API			0x356C
+#define QLA83XX_DRV_OP_MODE		0x3570
+
+static const uint32_t qla4_83xx_reg_tbl[] = {
+	QLA83XX_PEG_HALT_STATUS1,
+	QLA83XX_PEG_HALT_STATUS2,
+	QLA83XX_PEG_ALIVE_COUNTER,
+	QLA83XX_CRB_DRV_ACTIVE,
+	QLA83XX_CRB_DEV_STATE,
+	QLA83XX_CRB_DRV_STATE,
+	QLA83XX_CRB_DRV_SCRATCH,
+	QLA83XX_CRB_DEV_PART_INFO1,
+	QLA83XX_CRB_IDC_VER_MAJOR,
+	QLA83XX_FW_VER_MAJOR,
+	QLA83XX_FW_VER_MINOR,
+	QLA83XX_FW_VER_SUB,
+	QLA83XX_CMDPEG_STATE,
+	QLA83XX_ASIC_TEMP,
+};
+
+#define QLA83XX_CRB_WIN_BASE		0x3800
+#define QLA83XX_CRB_WIN_FUNC(f)		(QLA83XX_CRB_WIN_BASE+((f)*4))
+#define QLA83XX_SEM_LOCK_BASE		0x3840
+#define QLA83XX_SEM_UNLOCK_BASE		0x3844
+#define QLA83XX_SEM_LOCK_FUNC(f)	(QLA83XX_SEM_LOCK_BASE+((f)*8))
+#define QLA83XX_SEM_UNLOCK_FUNC(f)	(QLA83XX_SEM_UNLOCK_BASE+((f)*8))
+#define QLA83XX_LINK_STATE(f)		(0x3698+((f) > 7 ? 4 : 0))
+#define QLA83XX_LINK_SPEED(f)		(0x36E0+(((f) >> 2) * 4))
+#define QLA83XX_MAX_LINK_SPEED(f)       (0x36F0+(((f) / 4) * 4))
+#define QLA83XX_LINK_SPEED_FACTOR	10
+
+/* FLASH API Defines */
+#define QLA83xx_FLASH_MAX_WAIT_USEC	100
+#define QLA83XX_FLASH_LOCK_TIMEOUT	10000
+#define QLA83XX_FLASH_SECTOR_SIZE	65536
+#define QLA83XX_DRV_LOCK_TIMEOUT	2000
+#define QLA83XX_FLASH_SECTOR_ERASE_CMD	0xdeadbeef
+#define QLA83XX_FLASH_WRITE_CMD		0xdacdacda
+#define QLA83XX_FLASH_BUFFER_WRITE_CMD	0xcadcadca
+#define QLA83XX_FLASH_READ_RETRY_COUNT	2000
+#define QLA83XX_FLASH_STATUS_READY	0x6
+#define QLA83XX_FLASH_BUFFER_WRITE_MIN	2
+#define QLA83XX_FLASH_BUFFER_WRITE_MAX	64
+#define QLA83XX_FLASH_STATUS_REG_POLL_DELAY 1
+#define QLA83XX_ERASE_MODE		1
+#define QLA83XX_WRITE_MODE		2
+#define QLA83XX_DWORD_WRITE_MODE	3
+
+#define QLA83XX_GLOBAL_RESET		0x38CC
+#define QLA83XX_WILDCARD		0x38F0
+#define QLA83XX_INFORMANT		0x38FC
+#define QLA83XX_HOST_MBX_CTRL		0x3038
+#define QLA83XX_FW_MBX_CTRL		0x303C
+#define QLA83XX_BOOTLOADER_ADDR		0x355C
+#define QLA83XX_BOOTLOADER_SIZE		0x3560
+#define QLA83XX_FW_IMAGE_ADDR		0x3564
+#define QLA83XX_MBX_INTR_ENABLE		0x1000
+#define QLA83XX_MBX_INTR_MASK		0x1200
+
+/* IDC Control Register bit defines */
+#define DONTRESET_BIT0		0x1
+#define GRACEFUL_RESET_BIT1	0x2
+
+#define QLA83XX_HALT_STATUS_INFORMATIONAL	(0x1 << 29)
+#define QLA83XX_HALT_STATUS_FW_RESET		(0x2 << 29)
+#define QLA83XX_HALT_STATUS_UNRECOVERABLE	(0x4 << 29)
+
+/* Firmware image definitions */
+#define QLA83XX_BOOTLOADER_FLASH_ADDR	0x10000
+#define QLA83XX_BOOT_FROM_FLASH		0
+
+#define QLA83XX_IDC_PARAM_ADDR		0x3e8020
+/* Reset template definitions */
+#define QLA83XX_MAX_RESET_SEQ_ENTRIES	16
+#define QLA83XX_RESTART_TEMPLATE_SIZE	0x2000
+#define QLA83XX_RESET_TEMPLATE_ADDR	0x4F0000
+#define QLA83XX_RESET_SEQ_VERSION	0x0101
+
+/* Reset template entry opcodes */
+#define OPCODE_NOP			0x0000
+#define OPCODE_WRITE_LIST		0x0001
+#define OPCODE_READ_WRITE_LIST		0x0002
+#define OPCODE_POLL_LIST		0x0004
+#define OPCODE_POLL_WRITE_LIST		0x0008
+#define OPCODE_READ_MODIFY_WRITE	0x0010
+#define OPCODE_SEQ_PAUSE		0x0020
+#define OPCODE_SEQ_END			0x0040
+#define OPCODE_TMPL_END			0x0080
+#define OPCODE_POLL_READ_LIST		0x0100
+
+/* Template Header */
+#define RESET_TMPLT_HDR_SIGNATURE	0xCAFE
+struct qla4_83xx_reset_template_hdr {
+	__le16	version;
+	__le16	signature;
+	__le16	size;
+	__le16	entries;
+	__le16	hdr_size;
+	__le16	checksum;
+	__le16	init_seq_offset;
+	__le16	start_seq_offset;
+} __packed;
+
+/* Common Entry Header. */
+struct qla4_83xx_reset_entry_hdr {
+	__le16 cmd;
+	__le16 size;
+	__le16 count;
+	__le16 delay;
+} __packed;
+
+/* Generic poll entry type. */
+struct qla4_83xx_poll {
+	__le32  test_mask;
+	__le32  test_value;
+} __packed;
+
+/* Read modify write entry type. */
+struct qla4_83xx_rmw {
+	__le32  test_mask;
+	__le32  xor_value;
+	__le32  or_value;
+	uint8_t shl;
+	uint8_t shr;
+	uint8_t index_a;
+	uint8_t rsvd;
+} __packed;
+
+/* Generic Entry Item with 2 DWords. */
+struct qla4_83xx_entry {
+	__le32 arg1;
+	__le32 arg2;
+} __packed;
+
+/* Generic Entry Item with 4 DWords.*/
+struct qla4_83xx_quad_entry {
+	__le32 dr_addr;
+	__le32 dr_value;
+	__le32 ar_addr;
+	__le32 ar_value;
+} __packed;
+
+struct qla4_83xx_reset_template {
+	int seq_index;
+	int seq_error;
+	int array_index;
+	uint32_t array[QLA83XX_MAX_RESET_SEQ_ENTRIES];
+	uint8_t *buff;
+	uint8_t *stop_offset;
+	uint8_t *start_offset;
+	uint8_t *init_offset;
+	struct qla4_83xx_reset_template_hdr *hdr;
+	uint8_t seq_end;
+	uint8_t template_end;
+};
+
+/* POLLRD Entry */
+struct qla83xx_minidump_entry_pollrd {
+	struct qla8xxx_minidump_entry_hdr h;
+	uint32_t select_addr;
+	uint32_t read_addr;
+	uint32_t select_value;
+	uint16_t select_value_stride;
+	uint16_t op_count;
+	uint32_t poll_wait;
+	uint32_t poll_mask;
+	uint32_t data_size;
+	uint32_t rsvd_1;
+};
+
+/* RDMUX2 Entry */
+struct qla83xx_minidump_entry_rdmux2 {
+	struct qla8xxx_minidump_entry_hdr h;
+	uint32_t select_addr_1;
+	uint32_t select_addr_2;
+	uint32_t select_value_1;
+	uint32_t select_value_2;
+	uint32_t op_count;
+	uint32_t select_value_mask;
+	uint32_t read_addr;
+	uint8_t select_value_stride;
+	uint8_t data_size;
+	uint8_t rsvd[2];
+};
+
+/* POLLRDMWR Entry */
+struct qla83xx_minidump_entry_pollrdmwr {
+	struct qla8xxx_minidump_entry_hdr h;
+	uint32_t addr_1;
+	uint32_t addr_2;
+	uint32_t value_1;
+	uint32_t value_2;
+	uint32_t poll_wait;
+	uint32_t poll_mask;
+	uint32_t modify_mask;
+	uint32_t data_size;
+};
+
+/* IDC additional information */
+struct qla4_83xx_idc_information {
+	uint32_t request_desc;  /* IDC request descriptor */
+	uint32_t info1; /* IDC additional info */
+	uint32_t info2; /* IDC additional info */
+	uint32_t info3; /* IDC additional info */
+};
+
+#endif
diff --git a/drivers/scsi/qla4xxx/ql4_attr.c b/drivers/scsi/qla4xxx/ql4_attr.c
index c681b2a355e..76819b71ada 100644
--- a/drivers/scsi/qla4xxx/ql4_attr.c
+++ b/drivers/scsi/qla4xxx/ql4_attr.c
@@ -17,7 +17,7 @@ qla4_8xxx_sysfs_read_fw_dump(struct file *filep, struct kobject *kobj,
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 					       struct device, kobj)));
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		return -EINVAL;
 
 	if (!test_bit(AF_82XX_DUMP_READING, &ha->flags))
@@ -38,7 +38,7 @@ qla4_8xxx_sysfs_write_fw_dump(struct file *filep, struct kobject *kobj,
 	long reading;
 	int ret = 0;
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		return -EINVAL;
 
 	if (off != 0)
@@ -75,21 +75,21 @@ qla4_8xxx_sysfs_write_fw_dump(struct file *filep, struct kobject *kobj,
 		break;
 	case 2:
 		/* Reset HBA */
-		qla4_8xxx_idc_lock(ha);
-		dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-		if (dev_state == QLA82XX_DEV_READY) {
+		ha->isp_ops->idc_lock(ha);
+		dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
+		if (dev_state == QLA8XXX_DEV_READY) {
 			ql4_printk(KERN_INFO, ha,
 				   "%s: Setting Need reset, reset_owner is 0x%x.\n",
 				   __func__, ha->func_num);
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-					QLA82XX_DEV_NEED_RESET);
-			set_bit(AF_82XX_RST_OWNER, &ha->flags);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_NEED_RESET);
+			set_bit(AF_8XXX_RST_OWNER, &ha->flags);
 		} else
 			ql4_printk(KERN_INFO, ha,
 				   "%s: Reset not performed as device state is 0x%x\n",
 				   __func__, dev_state);
 
-		qla4_8xxx_idc_unlock(ha);
+		ha->isp_ops->idc_unlock(ha);
 		break;
 	default:
 		/* do nothing */
@@ -150,7 +150,7 @@ qla4xxx_fw_version_show(struct device *dev,
 {
 	struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
 
-	if (is_qla8022(ha))
+	if (is_qla80XX(ha))
 		return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%x)\n",
 				ha->firmware_version[0],
 				ha->firmware_version[1],
@@ -214,7 +214,7 @@ qla4xxx_phy_port_cnt_show(struct device *dev, struct device_attribute *attr,
 {
 	struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		return -ENOSYS;
 
 	return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->phy_port_cnt);
@@ -226,7 +226,7 @@ qla4xxx_phy_port_num_show(struct device *dev, struct device_attribute *attr,
 {
 	struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		return -ENOSYS;
 
 	return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->phy_port_num);
@@ -238,7 +238,7 @@ qla4xxx_iscsi_func_cnt_show(struct device *dev, struct device_attribute *attr,
 {
 	struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		return -ENOSYS;
 
 	return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->iscsi_pci_func_cnt);
diff --git a/drivers/scsi/qla4xxx/ql4_dbg.c b/drivers/scsi/qla4xxx/ql4_dbg.c
index 8d58ae27482..77b7c594010 100644
--- a/drivers/scsi/qla4xxx/ql4_dbg.c
+++ b/drivers/scsi/qla4xxx/ql4_dbg.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -37,7 +37,7 @@ void qla4xxx_dump_registers(struct scsi_qla_host *ha)
 	if (is_qla8022(ha)) {
 		for (i = 1; i < MBOX_REG_COUNT; i++)
 			printk(KERN_INFO "mailbox[%d]     = 0x%08X\n",
-			    i, readl(&ha->qla4_8xxx_reg->mailbox_in[i]));
+			    i, readl(&ha->qla4_82xx_reg->mailbox_in[i]));
 		return;
 	}
 
@@ -131,3 +131,31 @@ void qla4xxx_dump_registers(struct scsi_qla_host *ha)
 		    &ha->reg->ctrl_status);
 	}
 }
+
+void qla4_8xxx_dump_peg_reg(struct scsi_qla_host *ha)
+{
+	uint32_t halt_status1, halt_status2;
+
+	halt_status1 = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
+	halt_status2 = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS2);
+
+	if (is_qla8022(ha)) {
+		ql4_printk(KERN_INFO, ha,
+			   "scsi(%ld): %s, ISP8022 Dumping hw/fw registers:\n"
+			   " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
+			   " PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
+			   " PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
+			   " PEG_NET_4_PC: 0x%x\n", ha->host_no,
+			   __func__, halt_status1, halt_status2,
+			   qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c),
+			   qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c),
+			   qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c),
+			   qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c),
+			   qla4_82xx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c));
+	} else if (is_qla8032(ha)) {
+		ql4_printk(KERN_INFO, ha,
+			   "scsi(%ld): %s, ISP8324 Dumping hw/fw registers:\n"
+			   " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n",
+			   ha->host_no, __func__, halt_status1, halt_status2);
+	}
+}
diff --git a/drivers/scsi/qla4xxx/ql4_dbg.h b/drivers/scsi/qla4xxx/ql4_dbg.h
index abd83602cdd..5b0afc18ef1 100644
--- a/drivers/scsi/qla4xxx/ql4_dbg.h
+++ b/drivers/scsi/qla4xxx/ql4_dbg.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 7fdba7f1ffb..329d553eae9 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -42,6 +42,7 @@
 #include "ql4_nx.h"
 #include "ql4_fw.h"
 #include "ql4_nvram.h"
+#include "ql4_83xx.h"
 
 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4010
 #define PCI_DEVICE_ID_QLOGIC_ISP4010	0x4010
@@ -59,6 +60,10 @@
 #define PCI_DEVICE_ID_QLOGIC_ISP8022	0x8022
 #endif
 
+#ifndef PCI_DEVICE_ID_QLOGIC_ISP8324
+#define PCI_DEVICE_ID_QLOGIC_ISP8324	0x8032
+#endif
+
 #define ISP4XXX_PCI_FN_1	0x1
 #define ISP4XXX_PCI_FN_2	0x3
 
@@ -388,8 +393,10 @@ struct isp_operations {
 	void (*disable_intrs) (struct scsi_qla_host *);
 	void (*enable_intrs) (struct scsi_qla_host *);
 	int (*start_firmware) (struct scsi_qla_host *);
+	int (*restart_firmware) (struct scsi_qla_host *);
 	irqreturn_t (*intr_handler) (int , void *);
 	void (*interrupt_service_routine) (struct scsi_qla_host *, uint32_t);
+	int (*need_reset) (struct scsi_qla_host *);
 	int (*reset_chip) (struct scsi_qla_host *);
 	int (*reset_firmware) (struct scsi_qla_host *);
 	void (*queue_iocb) (struct scsi_qla_host *);
@@ -397,6 +404,15 @@ struct isp_operations {
 	uint16_t (*rd_shdw_req_q_out) (struct scsi_qla_host *);
 	uint16_t (*rd_shdw_rsp_q_in) (struct scsi_qla_host *);
 	int (*get_sys_info) (struct scsi_qla_host *);
+	uint32_t (*rd_reg_direct) (struct scsi_qla_host *, ulong);
+	void (*wr_reg_direct) (struct scsi_qla_host *, ulong, uint32_t);
+	int (*rd_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t *);
+	int (*wr_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t);
+	int (*idc_lock) (struct scsi_qla_host *);
+	void (*idc_unlock) (struct scsi_qla_host *);
+	void (*rom_lock_recovery) (struct scsi_qla_host *);
+	void (*queue_mailbox_command) (struct scsi_qla_host *, uint32_t *, int);
+	void (*process_mailbox_interrupt) (struct scsi_qla_host *, int);
 };
 
 struct ql4_mdump_size_table {
@@ -497,8 +513,9 @@ struct scsi_qla_host {
 #define AF_PCI_CHANNEL_IO_PERM_FAILURE	21 /* 0x00200000 */
 #define AF_BUILD_DDB_LIST		22 /* 0x00400000 */
 #define AF_82XX_FW_DUMPED		24 /* 0x01000000 */
-#define AF_82XX_RST_OWNER		25 /* 0x02000000 */
+#define AF_8XXX_RST_OWNER		25 /* 0x02000000 */
 #define AF_82XX_DUMP_READING		26 /* 0x04000000 */
+#define AF_83XX_NO_FW_DUMP		27 /* 0x08000000 */
 
 	unsigned long dpc_flags;
 
@@ -514,7 +531,7 @@ struct scsi_qla_host {
 #define DPC_RESET_ACTIVE		20 /* 0x00040000 */
 #define DPC_HA_UNRECOVERABLE		21 /* 0x00080000 ISP-82xx only*/
 #define DPC_HA_NEED_QUIESCENT		22 /* 0x00100000 ISP-82xx only*/
-
+#define DPC_POST_IDC_ACK		23 /* 0x00200000 */
 
 	struct Scsi_Host *host; /* pointer to host data */
 	uint32_t tot_ddbs;
@@ -647,7 +664,7 @@ struct scsi_qla_host {
 	uint8_t acb_version;
 
 	/* qla82xx specific fields */
-	struct device_reg_82xx  __iomem *qla4_8xxx_reg; /* Base I/O address */
+	struct device_reg_82xx  __iomem *qla4_82xx_reg; /* Base I/O address */
 	unsigned long nx_pcibase;	/* Base I/O address */
 	uint8_t *nx_db_rd_ptr;		/* Doorbell read pointer */
 	unsigned long nx_db_wr_ptr;	/* Door bell write pointer */
@@ -733,6 +750,13 @@ struct scsi_qla_host {
 #define MAX_MRB		128
 	struct mrb *active_mrb_array[MAX_MRB];
 	uint32_t mrb_index;
+
+	uint32_t *reg_tbl;
+	struct qla4_83xx_reset_template reset_tmplt;
+	struct device_reg_83xx  __iomem *qla4_83xx_reg; /* Base I/O address
+							   for ISP8324 */
+	uint32_t pf_bit;
+	struct qla4_83xx_idc_information idc_info;
 };
 
 struct ql4_task_data {
@@ -752,7 +776,7 @@ struct ql4_task_data {
 
 struct qla_endpoint {
 	struct Scsi_Host *host;
-	struct sockaddr dst_addr;
+	struct sockaddr_storage dst_addr;
 };
 
 struct qla_conn {
@@ -795,13 +819,20 @@ static inline int is_qla8022(struct scsi_qla_host *ha)
 	return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022;
 }
 
-/* Note: Currently AER/EEH is now supported only for 8022 cards
- * This function needs to be updated when AER/EEH is enabled
- * for other cards.
- */
+static inline int is_qla8032(struct scsi_qla_host *ha)
+{
+	return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324;
+}
+
+static inline int is_qla80XX(struct scsi_qla_host *ha)
+{
+	return is_qla8022(ha) || is_qla8032(ha);
+}
+
 static inline int is_aer_supported(struct scsi_qla_host *ha)
 {
-	return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022;
+	return ((ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022) ||
+		(ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324));
 }
 
 static inline int adapter_up(struct scsi_qla_host *ha)
@@ -942,6 +973,20 @@ static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
 	       test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
 
 }
+
+static inline int qla4_8xxx_rd_direct(struct scsi_qla_host *ha,
+				      const uint32_t crb_reg)
+{
+	return ha->isp_ops->rd_reg_direct(ha, ha->reg_tbl[crb_reg]);
+}
+
+static inline void qla4_8xxx_wr_direct(struct scsi_qla_host *ha,
+				       const uint32_t crb_reg,
+				       const uint32_t value)
+{
+	ha->isp_ops->wr_reg_direct(ha, ha->reg_tbl[crb_reg], value);
+}
+
 /*---------------------------------------------------------------------------*/
 
 /* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 7240948fb92..1c479502035 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -65,6 +65,40 @@ struct device_reg_82xx {
 #define ISRX_82XX_RISC_INT	BIT_0 /* RISC interrupt. */
 };
 
+/* ISP 83xx I/O Register Set structure */
+struct device_reg_83xx {
+	__le32 mailbox_in[16];	/* 0x0000 */
+	__le32 reserve1[496];	/* 0x0040 */
+	__le32 mailbox_out[16];	/* 0x0800 */
+	__le32 reserve2[496];
+	__le32 mbox_int;	/* 0x1000 */
+	__le32 reserve3[63];
+	__le32 req_q_out;	/* 0x1100 */
+	__le32 reserve4[63];
+
+	__le32 rsp_q_in;	/* 0x1200 */
+	__le32 reserve5[1919];
+
+	__le32 req_q_in;	/* 0x3000 */
+	__le32 reserve6[3];
+	__le32 iocb_int_mask;	/* 0x3010 */
+	__le32 reserve7[3];
+	__le32 rsp_q_out;	/* 0x3020 */
+	__le32 reserve8[3];
+	__le32 anonymousbuff;	/* 0x3030 */
+	__le32 mb_int_mask;	/* 0x3034 */
+
+	__le32 host_intr;	/* 0x3038 - Host Interrupt Register */
+	__le32 risc_intr;	/* 0x303C - RISC Interrupt Register */
+	__le32 reserve9[544];
+	__le32 leg_int_ptr;	/* 0x38C0 - Legacy Interrupt Pointer Register */
+	__le32 leg_int_trig;	/* 0x38C4 - Legacy Interrupt Trigger Control */
+	__le32 leg_int_mask;	/* 0x38C8 - Legacy Interrupt Mask Register */
+};
+
+#define INT_ENABLE_FW_MB	(1 << 2)
+#define INT_MASK_FW_MB		(1 << 2)
+
 /*  remote register set (access via PCI memory read/write) */
 struct isp_reg {
 #define MBOX_REG_COUNT 8
@@ -356,6 +390,9 @@ struct qla_flt_region {
 #define LOGOUT_OPTION_CLOSE_SESSION		0x0002
 #define LOGOUT_OPTION_RELOGIN			0x0004
 #define LOGOUT_OPTION_FREE_DDB			0x0008
+#define MBOX_CMD_SET_PARAM			0x0059
+#define SET_DRVR_VERSION			0x200
+#define MAX_DRVR_VER_LEN			24
 #define MBOX_CMD_EXECUTE_IOCB_A64		0x005A
 #define MBOX_CMD_INITIALIZE_FIRMWARE		0x0060
 #define MBOX_CMD_GET_INIT_FW_CTRL_BLOCK		0x0061
@@ -417,6 +454,10 @@ struct qla_flt_region {
 #define MBOX_CMD_GET_CRASH_RECORD		0x0076	/* 4010 only */
 #define MBOX_CMD_GET_CONN_EVENT_LOG		0x0077
 
+#define MBOX_CMD_IDC_ACK			0x0101
+#define MBOX_CMD_PORT_RESET			0x0120
+#define MBOX_CMD_SET_PORT_CONFIG		0x0122
+
 /*  Mailbox status definitions */
 #define MBOX_COMPLETION_STATUS			4
 #define MBOX_STS_BUSY				0x0007
@@ -453,6 +494,8 @@ struct qla_flt_region {
 #define MBOX_ASTS_IPV6_ND_PREFIX_IGNORED	0x802C
 #define MBOX_ASTS_IPV6_LCL_PREFIX_IGNORED	0x802D
 #define MBOX_ASTS_ICMPV6_ERROR_MSG_RCVD		0x802E
+#define MBOX_ASTS_IDC_COMPLETE			0x8100
+#define MBOX_ASTS_IDC_NOTIFY			0x8101
 #define MBOX_ASTS_TXSCVR_INSERTED		0x8130
 #define MBOX_ASTS_TXSCVR_REMOVED		0x8131
 
@@ -1195,9 +1238,12 @@ struct ql_iscsi_stats {
 	uint8_t reserved2[264]; /* 0x0308 - 0x040F */
 };
 
-#define QLA82XX_DBG_STATE_ARRAY_LEN		16
-#define QLA82XX_DBG_CAP_SIZE_ARRAY_LEN		8
-#define QLA82XX_DBG_RSVD_ARRAY_LEN		8
+#define QLA8XXX_DBG_STATE_ARRAY_LEN		16
+#define QLA8XXX_DBG_CAP_SIZE_ARRAY_LEN		8
+#define QLA8XXX_DBG_RSVD_ARRAY_LEN		8
+#define QLA83XX_DBG_OCM_WNDREG_ARRAY_LEN	16
+#define QLA83XX_SS_OCM_WNDREG_INDEX		3
+#define QLA83XX_SS_PCI_INDEX			0
 
 struct qla4_8xxx_minidump_template_hdr {
 	uint32_t entry_type;
@@ -1214,8 +1260,9 @@ struct qla4_8xxx_minidump_template_hdr {
 	uint32_t driver_info_word3;
 	uint32_t driver_info_word4;
 
-	uint32_t saved_state_array[QLA82XX_DBG_STATE_ARRAY_LEN];
-	uint32_t capture_size_array[QLA82XX_DBG_CAP_SIZE_ARRAY_LEN];
+	uint32_t saved_state_array[QLA8XXX_DBG_STATE_ARRAY_LEN];
+	uint32_t capture_size_array[QLA8XXX_DBG_CAP_SIZE_ARRAY_LEN];
+	uint32_t ocm_window_reg[QLA83XX_DBG_OCM_WNDREG_ARRAY_LEN];
 };
 
 #endif /*  _QLA4X_FW_H */
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 5b2525c4139..57a5a3cf577 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -109,28 +109,28 @@ uint8_t qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
 void qla4_8xxx_pci_config(struct scsi_qla_host *);
 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha);
 int qla4_8xxx_load_risc(struct scsi_qla_host *);
-irqreturn_t qla4_8xxx_intr_handler(int irq, void *dev_id);
-void qla4_8xxx_queue_iocb(struct scsi_qla_host *ha);
-void qla4_8xxx_complete_iocb(struct scsi_qla_host *ha);
+irqreturn_t qla4_82xx_intr_handler(int irq, void *dev_id);
+void qla4_82xx_queue_iocb(struct scsi_qla_host *ha);
+void qla4_82xx_complete_iocb(struct scsi_qla_host *ha);
 
-int qla4_8xxx_crb_win_lock(struct scsi_qla_host *);
-void qla4_8xxx_crb_win_unlock(struct scsi_qla_host *);
-int qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *, ulong *);
-void qla4_8xxx_wr_32(struct scsi_qla_host *, ulong, u32);
-int qla4_8xxx_rd_32(struct scsi_qla_host *, ulong);
-int qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *, u64, void *, int);
-int qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha, u64, void *, int);
-int qla4_8xxx_isp_reset(struct scsi_qla_host *ha);
-void qla4_8xxx_interrupt_service_routine(struct scsi_qla_host *ha,
+int qla4_82xx_crb_win_lock(struct scsi_qla_host *);
+void qla4_82xx_crb_win_unlock(struct scsi_qla_host *);
+int qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host *, ulong *);
+void qla4_82xx_wr_32(struct scsi_qla_host *, ulong, u32);
+uint32_t qla4_82xx_rd_32(struct scsi_qla_host *, ulong);
+int qla4_82xx_pci_mem_read_2M(struct scsi_qla_host *, u64, void *, int);
+int qla4_82xx_pci_mem_write_2M(struct scsi_qla_host *ha, u64, void *, int);
+int qla4_82xx_isp_reset(struct scsi_qla_host *ha);
+void qla4_82xx_interrupt_service_routine(struct scsi_qla_host *ha,
 		uint32_t intr_status);
-uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha);
-uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha);
+uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha);
+uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha);
 int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha);
 void qla4_8xxx_watchdog(struct scsi_qla_host *ha);
 int qla4_8xxx_stop_firmware(struct scsi_qla_host *ha);
 int qla4_8xxx_get_flash_info(struct scsi_qla_host *ha);
-void qla4_8xxx_enable_intrs(struct scsi_qla_host *ha);
-void qla4_8xxx_disable_intrs(struct scsi_qla_host *ha);
+void qla4_82xx_enable_intrs(struct scsi_qla_host *ha);
+void qla4_82xx_disable_intrs(struct scsi_qla_host *ha);
 int qla4_8xxx_enable_msix(struct scsi_qla_host *ha);
 void qla4_8xxx_disable_msix(struct scsi_qla_host *ha);
 irqreturn_t qla4_8xxx_msi_handler(int irq, void *dev_id);
@@ -138,8 +138,8 @@ irqreturn_t qla4_8xxx_default_intr_handler(int irq, void *dev_id);
 irqreturn_t qla4_8xxx_msix_rsp_q(int irq, void *dev_id);
 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha);
 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha);
-int qla4_8xxx_idc_lock(struct scsi_qla_host *ha);
-void qla4_8xxx_idc_unlock(struct scsi_qla_host *ha);
+int qla4_82xx_idc_lock(struct scsi_qla_host *ha);
+void qla4_82xx_idc_unlock(struct scsi_qla_host *ha);
 int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha);
 void qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha);
 void qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha);
@@ -203,6 +203,62 @@ int qla4xxx_req_template_size(struct scsi_qla_host *ha);
 void qla4_8xxx_alloc_sysfs_attr(struct scsi_qla_host *ha);
 void qla4_8xxx_free_sysfs_attr(struct scsi_qla_host *ha);
 void qla4xxx_alloc_fw_dump(struct scsi_qla_host *ha);
+int qla4_82xx_try_start_fw(struct scsi_qla_host *ha);
+int qla4_8xxx_need_reset(struct scsi_qla_host *ha);
+int qla4_82xx_md_rd_32(struct scsi_qla_host *ha, uint32_t off, uint32_t *data);
+int qla4_82xx_md_wr_32(struct scsi_qla_host *ha, uint32_t off, uint32_t data);
+void qla4_82xx_rom_lock_recovery(struct scsi_qla_host *ha);
+void qla4_82xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
+			      int incount);
+void qla4_82xx_process_mbox_intr(struct scsi_qla_host *ha, int outcount);
+void qla4xxx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
+			    int incount);
+void qla4xxx_process_mbox_intr(struct scsi_qla_host *ha, int outcount);
+void qla4_8xxx_dump_peg_reg(struct scsi_qla_host *ha);
+void qla4_83xx_disable_intrs(struct scsi_qla_host *ha);
+void qla4_83xx_enable_intrs(struct scsi_qla_host *ha);
+int qla4_83xx_start_firmware(struct scsi_qla_host *ha);
+irqreturn_t qla4_83xx_intr_handler(int irq, void *dev_id);
+void qla4_83xx_interrupt_service_routine(struct scsi_qla_host *ha,
+					 uint32_t intr_status);
+int qla4_83xx_isp_reset(struct scsi_qla_host *ha);
+void qla4_83xx_queue_iocb(struct scsi_qla_host *ha);
+void qla4_83xx_complete_iocb(struct scsi_qla_host *ha);
+uint16_t qla4_83xx_rd_shdw_req_q_out(struct scsi_qla_host *ha);
+uint16_t qla4_83xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha);
+uint32_t qla4_83xx_rd_reg(struct scsi_qla_host *ha, ulong addr);
+void qla4_83xx_wr_reg(struct scsi_qla_host *ha, ulong addr, uint32_t val);
+int qla4_83xx_rd_reg_indirect(struct scsi_qla_host *ha, uint32_t addr,
+			      uint32_t *data);
+int qla4_83xx_wr_reg_indirect(struct scsi_qla_host *ha, uint32_t addr,
+			      uint32_t data);
+int qla4_83xx_drv_lock(struct scsi_qla_host *ha);
+void qla4_83xx_drv_unlock(struct scsi_qla_host *ha);
+void qla4_83xx_rom_lock_recovery(struct scsi_qla_host *ha);
+void qla4_83xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
+			      int incount);
+void qla4_83xx_process_mbox_intr(struct scsi_qla_host *ha, int outcount);
+void qla4_83xx_read_reset_template(struct scsi_qla_host *ha);
+void qla4_83xx_set_idc_dontreset(struct scsi_qla_host *ha);
+int qla4_83xx_idc_dontreset(struct scsi_qla_host *ha);
+int qla4_83xx_lockless_flash_read_u32(struct scsi_qla_host *ha,
+				      uint32_t flash_addr, uint8_t *p_data,
+				      int u32_word_count);
+void qla4_83xx_clear_idc_dontreset(struct scsi_qla_host *ha);
+void qla4_83xx_need_reset_handler(struct scsi_qla_host *ha);
+int qla4_83xx_flash_read_u32(struct scsi_qla_host *ha, uint32_t flash_addr,
+			     uint8_t *p_data, int u32_word_count);
+void qla4_83xx_get_idc_param(struct scsi_qla_host *ha);
+void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha);
+void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha);
+int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha);
+void qla4_8xxx_get_minidump(struct scsi_qla_host *ha);
+int qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha);
+int qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha);
+int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param);
+int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha);
+int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha);
+void qla4_83xx_disable_pause(struct scsi_qla_host *ha);
 
 extern int ql4xextended_error_logging;
 extern int ql4xdontresethba;
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index ddd9472066c..1aca1b4f70b 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -102,11 +102,18 @@ int qla4xxx_init_rings(struct scsi_qla_host *ha)
 
 	if (is_qla8022(ha)) {
 		writel(0,
-		    (unsigned long  __iomem *)&ha->qla4_8xxx_reg->req_q_out);
+		    (unsigned long  __iomem *)&ha->qla4_82xx_reg->req_q_out);
 		writel(0,
-		    (unsigned long  __iomem *)&ha->qla4_8xxx_reg->rsp_q_in);
+		    (unsigned long  __iomem *)&ha->qla4_82xx_reg->rsp_q_in);
 		writel(0,
-		    (unsigned long  __iomem *)&ha->qla4_8xxx_reg->rsp_q_out);
+		    (unsigned long  __iomem *)&ha->qla4_82xx_reg->rsp_q_out);
+	} else if (is_qla8032(ha)) {
+		writel(0,
+		       (unsigned long __iomem *)&ha->qla4_83xx_reg->req_q_in);
+		writel(0,
+		       (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_in);
+		writel(0,
+		       (unsigned long __iomem *)&ha->qla4_83xx_reg->rsp_q_out);
 	} else {
 		/*
 		 * Initialize DMA Shadow registers.  The firmware is really
@@ -524,7 +531,7 @@ static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
 	/* For 82xx, stop firmware before initializing because if BIOS
 	 * has previously initialized firmware, then driver's initialize
 	 * firmware will fail. */
-	if (is_qla8022(ha))
+	if (is_qla80XX(ha))
 		qla4_8xxx_stop_firmware(ha);
 
 	ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
@@ -537,7 +544,7 @@ static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
 	if (!qla4xxx_fw_ready(ha))
 		return status;
 
-	if (is_qla8022(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
+	if (is_qla80XX(ha) && !test_bit(AF_INIT_DONE, &ha->flags))
 		qla4xxx_alloc_fw_dump(ha);
 
 	return qla4xxx_get_firmware_status(ha);
@@ -946,9 +953,9 @@ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
 
 	set_bit(AF_ONLINE, &ha->flags);
 exit_init_hba:
-	if (is_qla8022(ha) && (status == QLA_ERROR)) {
+	if (is_qla80XX(ha) && (status == QLA_ERROR)) {
 		/* Since interrupts are registered in start_firmware for
-		 * 82xx, release them here if initialize_adapter fails */
+		 * 80XX, release them here if initialize_adapter fails */
 		qla4xxx_free_irqs(ha);
 	}
 
diff --git a/drivers/scsi/qla4xxx/ql4_inline.h b/drivers/scsi/qla4xxx/ql4_inline.h
index 62f90bdec5d..6f4decd44c6 100644
--- a/drivers/scsi/qla4xxx/ql4_inline.h
+++ b/drivers/scsi/qla4xxx/ql4_inline.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index 2a2022a6bb9..f48f37a281d 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -192,35 +192,47 @@ static void qla4xxx_build_scsi_iocbs(struct srb *srb,
 	}
 }
 
+void qla4_83xx_queue_iocb(struct scsi_qla_host *ha)
+{
+	writel(ha->request_in, &ha->qla4_83xx_reg->req_q_in);
+	readl(&ha->qla4_83xx_reg->req_q_in);
+}
+
+void qla4_83xx_complete_iocb(struct scsi_qla_host *ha)
+{
+	writel(ha->response_out, &ha->qla4_83xx_reg->rsp_q_out);
+	readl(&ha->qla4_83xx_reg->rsp_q_out);
+}
+
 /**
- * qla4_8xxx_queue_iocb - Tell ISP it's got new request(s)
+ * qla4_82xx_queue_iocb - Tell ISP it's got new request(s)
  * @ha: pointer to host adapter structure.
  *
  * This routine notifies the ISP that one or more new request
  * queue entries have been placed on the request queue.
  **/
-void qla4_8xxx_queue_iocb(struct scsi_qla_host *ha)
+void qla4_82xx_queue_iocb(struct scsi_qla_host *ha)
 {
 	uint32_t dbval = 0;
 
 	dbval = 0x14 | (ha->func_num << 5);
 	dbval = dbval | (0 << 8) | (ha->request_in << 16);
 
-	qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, ha->request_in);
+	qla4_82xx_wr_32(ha, ha->nx_db_wr_ptr, ha->request_in);
 }
 
 /**
- * qla4_8xxx_complete_iocb - Tell ISP we're done with response(s)
+ * qla4_82xx_complete_iocb - Tell ISP we're done with response(s)
  * @ha: pointer to host adapter structure.
  *
  * This routine notifies the ISP that one or more response/completion
  * queue entries have been processed by the driver.
  * This also clears the interrupt.
  **/
-void qla4_8xxx_complete_iocb(struct scsi_qla_host *ha)
+void qla4_82xx_complete_iocb(struct scsi_qla_host *ha)
 {
-	writel(ha->response_out, &ha->qla4_8xxx_reg->rsp_q_out);
-	readl(&ha->qla4_8xxx_reg->rsp_q_out);
+	writel(ha->response_out, &ha->qla4_82xx_reg->rsp_q_out);
+	readl(&ha->qla4_82xx_reg->rsp_q_out);
 }
 
 /**
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index fc542a9bb10..15ea81465ce 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -126,7 +126,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
 		ql4_printk(KERN_WARNING, ha, "%s invalid status entry: "
 			   "handle=0x%0x, srb=%p\n", __func__,
 			   sts_entry->handle, srb);
-		if (is_qla8022(ha))
+		if (is_qla80XX(ha))
 			set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
 		else
 			set_bit(DPC_RESET_HA, &ha->dpc_flags);
@@ -243,56 +243,72 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
 
 		scsi_set_resid(cmd, residual);
 
-		/*
-		 * If there is scsi_status, it takes precedense over
-		 * underflow condition.
-		 */
-		if (scsi_status != 0) {
-			cmd->result = DID_OK << 16 | scsi_status;
+		if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) {
+
+			/* Both the firmware and target reported UNDERRUN:
+			 *
+			 * MID-LAYER UNDERFLOW case:
+			 * Some kernels do not properly detect midlayer
+			 * underflow, so we manually check it and return
+			 * ERROR if the minimum required data was not
+			 * received.
+			 *
+			 * ALL OTHER cases:
+			 * Fall thru to check scsi_status
+			 */
+			if (!scsi_status && (scsi_bufflen(cmd) - residual) <
+			    cmd->underflow) {
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+						  "scsi%ld:%d:%d:%d: %s: Mid-layer Data underrun, xferlen = 0x%x,residual = 0x%x\n",
+						   ha->host_no,
+						   cmd->device->channel,
+						   cmd->device->id,
+						   cmd->device->lun, __func__,
+						   scsi_bufflen(cmd),
+						   residual));
 
-			if (scsi_status != SCSI_CHECK_CONDITION)
+				cmd->result = DID_ERROR << 16;
 				break;
+			}
+
+		} else if (scsi_status != SAM_STAT_TASK_SET_FULL &&
+			   scsi_status != SAM_STAT_BUSY) {
 
-			/* Copy Sense Data into sense buffer. */
-			qla4xxx_copy_sense(ha, sts_entry, srb);
-		} else {
 			/*
-			 * If RISC reports underrun and target does not
-			 * report it then we must have a lost frame, so
-			 * tell upper layer to retry it by reporting a
-			 * bus busy.
+			 * The firmware reports UNDERRUN, but the target does
+			 * not report it:
+			 *
+			 *   scsi_status     |    host_byte       device_byte
+			 *                   |     (19:16)          (7:0)
+			 *   =============   |    =========       ===========
+			 *   TASK_SET_FULL   |    DID_OK          scsi_status
+			 *   BUSY            |    DID_OK          scsi_status
+			 *   ALL OTHERS      |    DID_ERROR       scsi_status
+			 *
+			 *   Note: If scsi_status is task set full or busy,
+			 *   then this else if would fall thru to check the
+			 *   scsi_status and return DID_OK.
 			 */
-			if ((sts_entry->iscsiFlags &
-			     ISCSI_FLAG_RESIDUAL_UNDER) == 0) {
-				cmd->result = DID_BUS_BUSY << 16;
-			} else if ((scsi_bufflen(cmd) - residual) <
-				   cmd->underflow) {
-				/*
-				 * Handle mid-layer underflow???
-				 *
-				 * For kernels less than 2.4, the driver must
-				 * return an error if an underflow is detected.
-				 * For kernels equal-to and above 2.4, the
-				 * mid-layer will appearantly handle the
-				 * underflow by detecting the residual count --
-				 * unfortunately, we do not see where this is
-				 * actually being done.	 In the interim, we
-				 * will return DID_ERROR.
-				 */
-				DEBUG2(printk("scsi%ld:%d:%d:%d: %s: "
-					"Mid-layer Data underrun1, "
-					"xferlen = 0x%x, "
-					"residual = 0x%x\n", ha->host_no,
-					cmd->device->channel,
-					cmd->device->id,
-					cmd->device->lun, __func__,
-					scsi_bufflen(cmd), residual));
 
-				cmd->result = DID_ERROR << 16;
-			} else {
-				cmd->result = DID_OK << 16;
-			}
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "scsi%ld:%d:%d:%d: %s: Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
+					  ha->host_no,
+					  cmd->device->channel,
+					  cmd->device->id,
+					  cmd->device->lun, __func__,
+					  residual,
+					  scsi_bufflen(cmd)));
+
+			cmd->result = DID_ERROR << 16 | scsi_status;
+			goto check_scsi_status;
 		}
+
+		cmd->result = DID_OK << 16 | scsi_status;
+
+check_scsi_status:
+		if (scsi_status == SAM_STAT_CHECK_CONDITION)
+			qla4xxx_copy_sense(ha, sts_entry, srb);
+
 		break;
 
 	case SCS_DEVICE_LOGGED_OUT:
@@ -578,6 +594,14 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 {
 	int i;
 	uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
+	__le32 __iomem *mailbox_out;
+
+	if (is_qla8032(ha))
+		mailbox_out = &ha->qla4_83xx_reg->mailbox_out[0];
+	else if (is_qla8022(ha))
+		mailbox_out = &ha->qla4_82xx_reg->mailbox_out[0];
+	else
+		mailbox_out = &ha->reg->mailbox[0];
 
 	if ((mbox_status == MBOX_STS_BUSY) ||
 	    (mbox_status == MBOX_STS_INTERMEDIATE_COMPLETION) ||
@@ -590,9 +614,7 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 			 * location and set mailbox command done flag
 			 */
 			for (i = 0; i < ha->mbox_status_count; i++)
-				ha->mbox_status[i] = is_qla8022(ha)
-				    ? readl(&ha->qla4_8xxx_reg->mailbox_out[i])
-				    : readl(&ha->reg->mailbox[i]);
+				ha->mbox_status[i] = readl(&mailbox_out[i]);
 
 			set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 
@@ -601,9 +623,7 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 		}
 	} else if (mbox_status >> 12 == MBOX_ASYNC_EVENT_STATUS) {
 		for (i = 0; i < MBOX_AEN_REG_COUNT; i++)
-			mbox_sts[i] = is_qla8022(ha)
-			    ? readl(&ha->qla4_8xxx_reg->mailbox_out[i])
-			    : readl(&ha->reg->mailbox[i]);
+			mbox_sts[i] = readl(&mailbox_out[i]);
 
 		/* Immediately process the AENs that don't require much work.
 		 * Only queue the database_changed AENs */
@@ -619,7 +639,8 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 			ql4_printk(KERN_INFO, ha, "%s: System Err\n", __func__);
 			qla4xxx_dump_registers(ha);
 
-			if (ql4xdontresethba) {
+			if ((is_qla8022(ha) && ql4xdontresethba) ||
+			    (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
 				DEBUG2(printk("scsi%ld: %s:Don't Reset HBA\n",
 				    ha->host_no, __func__));
 			} else {
@@ -635,7 +656,7 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 		case MBOX_ASTS_DHCP_LEASE_EXPIRED:
 			DEBUG2(printk("scsi%ld: AEN %04x, ERROR Status, "
 				      "Reset HA\n", ha->host_no, mbox_status));
-			if (is_qla8022(ha))
+			if (is_qla80XX(ha))
 				set_bit(DPC_RESET_HA_FW_CONTEXT,
 					&ha->dpc_flags);
 			else
@@ -700,7 +721,7 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 				set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags);
 			else if ((mbox_sts[3] == ACB_STATE_ACQUIRING) &&
 				 (mbox_sts[2] == ACB_STATE_VALID)) {
-				if (is_qla8022(ha))
+				if (is_qla80XX(ha))
 					set_bit(DPC_RESET_HA_FW_CONTEXT,
 						&ha->dpc_flags);
 				else
@@ -785,6 +806,43 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 			    " removed\n",  ha->host_no, mbox_sts[0]));
 			break;
 
+		case MBOX_ASTS_IDC_NOTIFY:
+		{
+			uint32_t opcode;
+			if (is_qla8032(ha)) {
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+						  "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n",
+						  ha->host_no, mbox_sts[0],
+						  mbox_sts[1], mbox_sts[2],
+						  mbox_sts[3], mbox_sts[4]));
+				opcode = mbox_sts[1] >> 16;
+				if ((opcode == MBOX_CMD_SET_PORT_CONFIG) ||
+				    (opcode == MBOX_CMD_PORT_RESET)) {
+					set_bit(DPC_POST_IDC_ACK,
+						&ha->dpc_flags);
+					ha->idc_info.request_desc = mbox_sts[1];
+					ha->idc_info.info1 = mbox_sts[2];
+					ha->idc_info.info2 = mbox_sts[3];
+					ha->idc_info.info3 = mbox_sts[4];
+					qla4xxx_wake_dpc(ha);
+				}
+			}
+			break;
+		}
+
+		case MBOX_ASTS_IDC_COMPLETE:
+			if (is_qla8032(ha)) {
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+						  "scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n",
+						  ha->host_no, mbox_sts[0],
+						  mbox_sts[1], mbox_sts[2],
+						  mbox_sts[3], mbox_sts[4]));
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+						  "scsi:%ld: AEN %04x IDC Complete notification\n",
+						  ha->host_no, mbox_sts[0]));
+			}
+			break;
+
 		default:
 			DEBUG2(printk(KERN_WARNING
 				      "scsi%ld: AEN %04x UNKNOWN\n",
@@ -799,14 +857,31 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 	}
 }
 
+void qla4_83xx_interrupt_service_routine(struct scsi_qla_host *ha,
+					 uint32_t intr_status)
+{
+	/* Process mailbox/asynch event interrupt.*/
+	if (intr_status) {
+		qla4xxx_isr_decode_mailbox(ha,
+				readl(&ha->qla4_83xx_reg->mailbox_out[0]));
+		/* clear the interrupt */
+		writel(0, &ha->qla4_83xx_reg->risc_intr);
+	} else {
+		qla4xxx_process_response_queue(ha);
+	}
+
+	/* clear the interrupt */
+	writel(0, &ha->qla4_83xx_reg->mb_int_mask);
+}
+
 /**
- * qla4_8xxx_interrupt_service_routine - isr
+ * qla4_82xx_interrupt_service_routine - isr
  * @ha: pointer to host adapter structure.
  *
  * This is the main interrupt service routine.
  * hardware_lock locked upon entry. runs in interrupt context.
  **/
-void qla4_8xxx_interrupt_service_routine(struct scsi_qla_host *ha,
+void qla4_82xx_interrupt_service_routine(struct scsi_qla_host *ha,
     uint32_t intr_status)
 {
 	/* Process response queue interrupt. */
@@ -816,11 +891,11 @@ void qla4_8xxx_interrupt_service_routine(struct scsi_qla_host *ha,
 	/* Process mailbox/asynch event interrupt.*/
 	if (intr_status & HSRX_RISC_MB_INT)
 		qla4xxx_isr_decode_mailbox(ha,
-		    readl(&ha->qla4_8xxx_reg->mailbox_out[0]));
+		    readl(&ha->qla4_82xx_reg->mailbox_out[0]));
 
 	/* clear the interrupt */
-	writel(0, &ha->qla4_8xxx_reg->host_int);
-	readl(&ha->qla4_8xxx_reg->host_int);
+	writel(0, &ha->qla4_82xx_reg->host_int);
+	readl(&ha->qla4_82xx_reg->host_int);
 }
 
 /**
@@ -850,12 +925,12 @@ void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha,
 }
 
 /**
- * qla4_8xxx_spurious_interrupt - processes spurious interrupt
+ * qla4_82xx_spurious_interrupt - processes spurious interrupt
  * @ha: pointer to host adapter structure.
  * @reqs_count: .
  *
  **/
-static void qla4_8xxx_spurious_interrupt(struct scsi_qla_host *ha,
+static void qla4_82xx_spurious_interrupt(struct scsi_qla_host *ha,
     uint8_t reqs_count)
 {
 	if (reqs_count)
@@ -863,9 +938,9 @@ static void qla4_8xxx_spurious_interrupt(struct scsi_qla_host *ha,
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Spurious Interrupt\n"));
 	if (is_qla8022(ha)) {
-		writel(0, &ha->qla4_8xxx_reg->host_int);
+		writel(0, &ha->qla4_82xx_reg->host_int);
 		if (test_bit(AF_INTx_ENABLED, &ha->flags))
-			qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
+			qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
 			    0xfbff);
 	}
 	ha->spurious_int_count++;
@@ -968,11 +1043,11 @@ irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id)
 }
 
 /**
- * qla4_8xxx_intr_handler - hardware interrupt handler.
+ * qla4_82xx_intr_handler - hardware interrupt handler.
  * @irq: Unused
  * @dev_id: Pointer to host adapter structure
  **/
-irqreturn_t qla4_8xxx_intr_handler(int irq, void *dev_id)
+irqreturn_t qla4_82xx_intr_handler(int irq, void *dev_id)
 {
 	struct scsi_qla_host *ha = dev_id;
 	uint32_t intr_status;
@@ -984,11 +1059,11 @@ irqreturn_t qla4_8xxx_intr_handler(int irq, void *dev_id)
 		return IRQ_HANDLED;
 
 	ha->isr_count++;
-	status = qla4_8xxx_rd_32(ha, ISR_INT_VECTOR);
+	status = qla4_82xx_rd_32(ha, ISR_INT_VECTOR);
 	if (!(status & ha->nx_legacy_intr.int_vec_bit))
 		return IRQ_NONE;
 
-	status = qla4_8xxx_rd_32(ha, ISR_INT_STATE_REG);
+	status = qla4_82xx_rd_32(ha, ISR_INT_STATE_REG);
 	if (!ISR_IS_LEGACY_INTR_TRIGGERED(status)) {
 		DEBUG2(ql4_printk(KERN_INFO, ha,
 		    "%s legacy Int not triggered\n", __func__));
@@ -996,30 +1071,30 @@ irqreturn_t qla4_8xxx_intr_handler(int irq, void *dev_id)
 	}
 
 	/* clear the interrupt */
-	qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
+	qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
 
 	/* read twice to ensure write is flushed */
-	qla4_8xxx_rd_32(ha, ISR_INT_VECTOR);
-	qla4_8xxx_rd_32(ha, ISR_INT_VECTOR);
+	qla4_82xx_rd_32(ha, ISR_INT_VECTOR);
+	qla4_82xx_rd_32(ha, ISR_INT_VECTOR);
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	while (1) {
-		if (!(readl(&ha->qla4_8xxx_reg->host_int) &
+		if (!(readl(&ha->qla4_82xx_reg->host_int) &
 		    ISRX_82XX_RISC_INT)) {
-			qla4_8xxx_spurious_interrupt(ha, reqs_count);
+			qla4_82xx_spurious_interrupt(ha, reqs_count);
 			break;
 		}
-		intr_status =  readl(&ha->qla4_8xxx_reg->host_status);
+		intr_status =  readl(&ha->qla4_82xx_reg->host_status);
 		if ((intr_status &
 		    (HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0)  {
-			qla4_8xxx_spurious_interrupt(ha, reqs_count);
+			qla4_82xx_spurious_interrupt(ha, reqs_count);
 			break;
 		}
 
 		ha->isp_ops->interrupt_service_routine(ha, intr_status);
 
 		/* Enable Interrupt */
-		qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
+		qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
 
 		if (++reqs_count == MAX_REQS_SERVICED_PER_INTR)
 			break;
@@ -1029,6 +1104,59 @@ irqreturn_t qla4_8xxx_intr_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+#define LEG_INT_PTR_B31		(1 << 31)
+#define LEG_INT_PTR_B30		(1 << 30)
+#define PF_BITS_MASK		(0xF << 16)
+
+/**
+ * qla4_83xx_intr_handler - hardware interrupt handler.
+ * @irq: Unused
+ * @dev_id: Pointer to host adapter structure
+ **/
+irqreturn_t qla4_83xx_intr_handler(int irq, void *dev_id)
+{
+	struct scsi_qla_host *ha = dev_id;
+	uint32_t leg_int_ptr = 0;
+	unsigned long flags = 0;
+
+	ha->isr_count++;
+	leg_int_ptr = readl(&ha->qla4_83xx_reg->leg_int_ptr);
+
+	/* Legacy interrupt is valid if bit31 of leg_int_ptr is set */
+	if (!(leg_int_ptr & LEG_INT_PTR_B31)) {
+		ql4_printk(KERN_ERR, ha,
+			   "%s: Legacy Interrupt Bit 31 not set, spurious interrupt!\n",
+			   __func__);
+		return IRQ_NONE;
+	}
+
+	/* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */
+	if ((leg_int_ptr & PF_BITS_MASK) != ha->pf_bit) {
+		ql4_printk(KERN_ERR, ha,
+			   "%s: Incorrect function ID 0x%x in legacy interrupt register, ha->pf_bit = 0x%x\n",
+			   __func__, (leg_int_ptr & PF_BITS_MASK), ha->pf_bit);
+		return IRQ_NONE;
+	}
+
+	/* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger
+	 * Control register and poll till Legacy Interrupt Pointer register
+	 * bit30 is 0.
+	 */
+	writel(0, &ha->qla4_83xx_reg->leg_int_trig);
+	do {
+		leg_int_ptr = readl(&ha->qla4_83xx_reg->leg_int_ptr);
+		if ((leg_int_ptr & PF_BITS_MASK) != ha->pf_bit)
+			break;
+	} while (leg_int_ptr & LEG_INT_PTR_B30);
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	leg_int_ptr = readl(&ha->qla4_83xx_reg->risc_intr);
+	ha->isp_ops->interrupt_service_routine(ha, leg_int_ptr);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	return IRQ_HANDLED;
+}
+
 irqreturn_t
 qla4_8xxx_msi_handler(int irq, void *dev_id)
 {
@@ -1043,15 +1171,46 @@ qla4_8xxx_msi_handler(int irq, void *dev_id)
 
 	ha->isr_count++;
 	/* clear the interrupt */
-	qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
+	qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
 
 	/* read twice to ensure write is flushed */
-	qla4_8xxx_rd_32(ha, ISR_INT_VECTOR);
-	qla4_8xxx_rd_32(ha, ISR_INT_VECTOR);
+	qla4_82xx_rd_32(ha, ISR_INT_VECTOR);
+	qla4_82xx_rd_32(ha, ISR_INT_VECTOR);
 
 	return qla4_8xxx_default_intr_handler(irq, dev_id);
 }
 
+static irqreturn_t qla4_83xx_mailbox_intr_handler(int irq, void *dev_id)
+{
+	struct scsi_qla_host *ha = dev_id;
+	unsigned long flags;
+	uint32_t ival = 0;
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+
+	ival = readl(&ha->qla4_83xx_reg->risc_intr);
+	if (ival == 0) {
+		ql4_printk(KERN_INFO, ha,
+			   "%s: It is a spurious mailbox interrupt!\n",
+			   __func__);
+		ival = readl(&ha->qla4_83xx_reg->mb_int_mask);
+		ival &= ~INT_MASK_FW_MB;
+		writel(ival, &ha->qla4_83xx_reg->mb_int_mask);
+		goto exit;
+	}
+
+	qla4xxx_isr_decode_mailbox(ha,
+				   readl(&ha->qla4_83xx_reg->mailbox_out[0]));
+	writel(0, &ha->qla4_83xx_reg->risc_intr);
+	ival = readl(&ha->qla4_83xx_reg->mb_int_mask);
+	ival &= ~INT_MASK_FW_MB;
+	writel(ival, &ha->qla4_83xx_reg->mb_int_mask);
+	ha->isr_count++;
+exit:
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+	return IRQ_HANDLED;
+}
+
 /**
  * qla4_8xxx_default_intr_handler - hardware interrupt handler.
  * @irq: Unused
@@ -1068,29 +1227,32 @@ qla4_8xxx_default_intr_handler(int irq, void *dev_id)
 	uint32_t intr_status;
 	uint8_t reqs_count = 0;
 
-	spin_lock_irqsave(&ha->hardware_lock, flags);
-	while (1) {
-		if (!(readl(&ha->qla4_8xxx_reg->host_int) &
-		    ISRX_82XX_RISC_INT)) {
-			qla4_8xxx_spurious_interrupt(ha, reqs_count);
-			break;
-		}
+	if (is_qla8032(ha)) {
+		qla4_83xx_mailbox_intr_handler(irq, dev_id);
+	} else {
+		spin_lock_irqsave(&ha->hardware_lock, flags);
+		while (1) {
+			if (!(readl(&ha->qla4_82xx_reg->host_int) &
+			    ISRX_82XX_RISC_INT)) {
+				qla4_82xx_spurious_interrupt(ha, reqs_count);
+				break;
+			}
 
-		intr_status =  readl(&ha->qla4_8xxx_reg->host_status);
-		if ((intr_status &
-		    (HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0) {
-			qla4_8xxx_spurious_interrupt(ha, reqs_count);
-			break;
-		}
+			intr_status =  readl(&ha->qla4_82xx_reg->host_status);
+			if ((intr_status &
+			    (HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0) {
+				qla4_82xx_spurious_interrupt(ha, reqs_count);
+				break;
+			}
 
-		ha->isp_ops->interrupt_service_routine(ha, intr_status);
+			ha->isp_ops->interrupt_service_routine(ha, intr_status);
 
-		if (++reqs_count == MAX_REQS_SERVICED_PER_INTR)
-			break;
+			if (++reqs_count == MAX_REQS_SERVICED_PER_INTR)
+				break;
+		}
+		ha->isr_count++;
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	}
-
-	ha->isr_count++;
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -1099,13 +1261,25 @@ qla4_8xxx_msix_rsp_q(int irq, void *dev_id)
 {
 	struct scsi_qla_host *ha = dev_id;
 	unsigned long flags;
+	uint32_t ival = 0;
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
-	qla4xxx_process_response_queue(ha);
-	writel(0, &ha->qla4_8xxx_reg->host_int);
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
+	if (is_qla8032(ha)) {
+		ival = readl(&ha->qla4_83xx_reg->iocb_int_mask);
+		if (ival == 0) {
+			ql4_printk(KERN_INFO, ha, "%s: It is a spurious iocb interrupt!\n",
+				   __func__);
+			goto exit_msix_rsp_q;
+		}
+		qla4xxx_process_response_queue(ha);
+		writel(0, &ha->qla4_83xx_reg->iocb_int_mask);
+	} else {
+		qla4xxx_process_response_queue(ha);
+		writel(0, &ha->qla4_82xx_reg->host_int);
+	}
 	ha->isr_count++;
+exit_msix_rsp_q:
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -1177,11 +1351,18 @@ int qla4xxx_request_irqs(struct scsi_qla_host *ha)
 {
 	int ret;
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		goto try_intx;
 
-	if (ql4xenablemsix == 2)
+	if (ql4xenablemsix == 2) {
+		/* Note: MSI Interrupts not supported for ISP8324 */
+		if (is_qla8032(ha)) {
+			ql4_printk(KERN_INFO, ha, "%s: MSI Interrupts not supported for ISP8324, Falling back-to INTx mode\n",
+				   __func__);
+			goto try_intx;
+		}
 		goto try_msi;
+	}
 
 	if (ql4xenablemsix == 0 || ql4xenablemsix != 1)
 		goto try_intx;
@@ -1192,6 +1373,12 @@ int qla4xxx_request_irqs(struct scsi_qla_host *ha)
 		DEBUG2(ql4_printk(KERN_INFO, ha,
 		    "MSI-X: Enabled (0x%X).\n", ha->revision_id));
 		goto irq_attached;
+	} else {
+		if (is_qla8032(ha)) {
+			ql4_printk(KERN_INFO, ha, "%s: ISP8324: MSI-X: Falling back-to INTx mode. ret = %d\n",
+				   __func__, ret);
+			goto try_intx;
+		}
 	}
 
 	ql4_printk(KERN_WARNING, ha,
@@ -1214,9 +1401,15 @@ try_msi:
 			pci_disable_msi(ha->pdev);
 		}
 	}
-	ql4_printk(KERN_WARNING, ha,
-	    "MSI: Falling back-to INTx mode -- %d.\n", ret);
 
+	/*
+	 * Prevent interrupts from falling back to INTx mode in cases where
+	 * interrupts cannot get acquired through MSI-X or MSI mode.
+	 */
+	if (is_qla8022(ha)) {
+		ql4_printk(KERN_WARNING, ha, "IRQ not attached -- %d.\n", ret);
+		goto irq_not_attached;
+	}
 try_intx:
 	/* Trying INTx */
 	ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
@@ -1230,7 +1423,7 @@ try_intx:
 		ql4_printk(KERN_WARNING, ha,
 		    "INTx: Failed to reserve interrupt %d already in"
 		    " use.\n", ha->pdev->irq);
-		return ret;
+		goto irq_not_attached;
 	}
 
 irq_attached:
@@ -1238,6 +1431,7 @@ irq_attached:
 	ha->host->irq = ha->pdev->irq;
 	ql4_printk(KERN_INFO, ha, "%s: irq %d attached\n",
 	    __func__, ha->pdev->irq);
+irq_not_attached:
 	return ret;
 }
 
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index cab8f665a41..3d41034191f 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -9,7 +9,39 @@
 #include "ql4_glbl.h"
 #include "ql4_dbg.h"
 #include "ql4_inline.h"
+#include "ql4_version.h"
 
+void qla4xxx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
+			    int in_count)
+{
+	int i;
+
+	/* Load all mailbox registers, except mailbox 0. */
+	for (i = 1; i < in_count; i++)
+		writel(mbx_cmd[i], &ha->reg->mailbox[i]);
+
+	/* Wakeup firmware  */
+	writel(mbx_cmd[0], &ha->reg->mailbox[0]);
+	readl(&ha->reg->mailbox[0]);
+	writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
+	readl(&ha->reg->ctrl_status);
+}
+
+void qla4xxx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
+{
+	int intr_status;
+
+	intr_status = readl(&ha->reg->ctrl_status);
+	if (intr_status & INTR_PENDING) {
+		/*
+		 * Service the interrupt.
+		 * The ISR will save the mailbox status registers
+		 * to a temporary storage location in the adapter structure.
+		 */
+		ha->mbox_status_count = out_count;
+		ha->isp_ops->interrupt_service_routine(ha, intr_status);
+	}
+}
 
 /**
  * qla4xxx_mailbox_command - issues mailbox commands
@@ -30,7 +62,6 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 	int status = QLA_ERROR;
 	uint8_t i;
 	u_long wait_count;
-	uint32_t intr_status;
 	unsigned long flags = 0;
 	uint32_t dev_state;
 
@@ -77,7 +108,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 		msleep(10);
 	}
 
-	if (is_qla8022(ha)) {
+	if (is_qla80XX(ha)) {
 		if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
 			DEBUG2(ql4_printk(KERN_WARNING, ha,
 					  "scsi%ld: %s: prematurely completing mbx cmd as firmware recovery detected\n",
@@ -85,10 +116,10 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 			goto mbox_exit;
 		}
 		/* Do not send any mbx cmd if h/w is in failed state*/
-		qla4_8xxx_idc_lock(ha);
-		dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-		qla4_8xxx_idc_unlock(ha);
-		if (dev_state == QLA82XX_DEV_FAILED) {
+		ha->isp_ops->idc_lock(ha);
+		dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
+		ha->isp_ops->idc_unlock(ha);
+		if (dev_state == QLA8XXX_DEV_FAILED) {
 			ql4_printk(KERN_WARNING, ha,
 				   "scsi%ld: %s: H/W is in failed state, do not send any mailbox commands\n",
 				   ha->host_no, __func__);
@@ -102,30 +133,8 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 	for (i = 0; i < outCount; i++)
 		ha->mbox_status[i] = 0;
 
-	if (is_qla8022(ha)) {
-		/* Load all mailbox registers, except mailbox 0. */
-		DEBUG5(
-		    printk("scsi%ld: %s: Cmd ", ha->host_no, __func__);
-		    for (i = 0; i < inCount; i++)
-			printk("mb%d=%04x ", i, mbx_cmd[i]);
-		    printk("\n"));
-
-		for (i = 1; i < inCount; i++)
-			writel(mbx_cmd[i], &ha->qla4_8xxx_reg->mailbox_in[i]);
-		writel(mbx_cmd[0], &ha->qla4_8xxx_reg->mailbox_in[0]);
-		readl(&ha->qla4_8xxx_reg->mailbox_in[0]);
-		writel(HINT_MBX_INT_PENDING, &ha->qla4_8xxx_reg->hint);
-	} else {
-		/* Load all mailbox registers, except mailbox 0. */
-		for (i = 1; i < inCount; i++)
-			writel(mbx_cmd[i], &ha->reg->mailbox[i]);
-
-		/* Wakeup firmware  */
-		writel(mbx_cmd[0], &ha->reg->mailbox[0]);
-		readl(&ha->reg->mailbox[0]);
-		writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
-		readl(&ha->reg->ctrl_status);
-	}
+	/* Queue the mailbox command to the firmware */
+	ha->isp_ops->queue_mailbox_command(ha, mbx_cmd, inCount);
 
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
@@ -167,37 +176,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 			 */
 
 			spin_lock_irqsave(&ha->hardware_lock, flags);
-			if (is_qla8022(ha)) {
-				intr_status =
-				    readl(&ha->qla4_8xxx_reg->host_int);
-				if (intr_status & ISRX_82XX_RISC_INT) {
-					ha->mbox_status_count = outCount;
-					intr_status =
-					 readl(&ha->qla4_8xxx_reg->host_status);
-					ha->isp_ops->interrupt_service_routine(
-					    ha, intr_status);
-					if (test_bit(AF_INTERRUPTS_ON,
-					    &ha->flags) &&
-					    test_bit(AF_INTx_ENABLED,
-					    &ha->flags))
-						qla4_8xxx_wr_32(ha,
-						ha->nx_legacy_intr.tgt_mask_reg,
-						0xfbff);
-				}
-			} else {
-				intr_status = readl(&ha->reg->ctrl_status);
-				if (intr_status & INTR_PENDING) {
-					/*
-					 * Service the interrupt.
-					 * The ISR will save the mailbox status
-					 * registers to a temporary storage
-					 * location in the adapter structure.
-					 */
-					ha->mbox_status_count = outCount;
-					ha->isp_ops->interrupt_service_routine(
-					    ha, intr_status);
-				}
-			}
+			ha->isp_ops->process_mailbox_interrupt(ha, outCount);
 			spin_unlock_irqrestore(&ha->hardware_lock, flags);
 			msleep(10);
 		}
@@ -205,7 +184,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 
 	/* Check for mailbox timeout. */
 	if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
-		if (is_qla8022(ha) &&
+		if (is_qla80XX(ha) &&
 		    test_bit(AF_FW_RECOVERY, &ha->flags)) {
 			DEBUG2(ql4_printk(KERN_INFO, ha,
 			    "scsi%ld: %s: prematurely completing mbx cmd as "
@@ -222,9 +201,13 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 		if (is_qla8022(ha)) {
 			ql4_printk(KERN_INFO, ha,
 				   "disabling pause transmit on port 0 & 1.\n");
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
+			qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
 					CRB_NIU_XG_PAUSE_CTL_P0 |
 					CRB_NIU_XG_PAUSE_CTL_P1);
+		} else if (is_qla8032(ha)) {
+			ql4_printk(KERN_INFO, ha, " %s: disabling pause transmit on port 0 & 1.\n",
+				   __func__);
+			qla4_83xx_disable_pause(ha);
 		}
 		goto mbox_exit;
 	}
@@ -373,7 +356,7 @@ qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 	memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 
 	if (is_qla8022(ha))
-		qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, 0);
+		qla4_82xx_wr_32(ha, ha->nx_db_wr_ptr, 0);
 
 	mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
 	mbox_cmd[1] = 0;
@@ -566,7 +549,7 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 		__constant_cpu_to_le16(FWOPT_SESSION_MODE |
 				       FWOPT_INITIATOR_MODE);
 
-	if (is_qla8022(ha))
+	if (is_qla80XX(ha))
 		init_fw_cb->fw_options |=
 		    __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
 
@@ -1695,7 +1678,7 @@ int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
 	conn = cls_conn->dd_data;
 	qla_conn = conn->dd_data;
 	sess = conn->session;
-	dst_addr = &qla_conn->qla_ep->dst_addr;
+	dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
 
 	if (dst_addr->sa_family == AF_INET6)
 		options |= IPV6_DEFAULT_DDB_ENTRY;
@@ -1953,3 +1936,72 @@ int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
 	}
 	return status;
 }
+
+/**
+ * qla4_8xxx_set_param - set driver version in firmware.
+ * @ha: Pointer to host adapter structure.
+ * @param: Parameter to set i.e driver version
+ **/
+int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	uint32_t status;
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_SET_PARAM;
+	if (param == SET_DRVR_VERSION) {
+		mbox_cmd[1] = SET_DRVR_VERSION;
+		strncpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION,
+			MAX_DRVR_VER_LEN);
+	} else {
+		ql4_printk(KERN_ERR, ha, "%s: invalid parameter 0x%x\n",
+			   __func__, param);
+		status = QLA_ERROR;
+		goto exit_set_param;
+	}
+
+	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, mbox_cmd,
+					 mbox_sts);
+	if (status == QLA_ERROR)
+		ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
+			   __func__, mbox_sts[0]);
+
+exit_set_param:
+	return status;
+}
+
+/**
+ * qla4_83xx_post_idc_ack - post IDC ACK
+ * @ha: Pointer to host adapter structure.
+ *
+ * Posts IDC ACK for IDC Request Notification AEN.
+ **/
+int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	int status;
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_IDC_ACK;
+	mbox_cmd[1] = ha->idc_info.request_desc;
+	mbox_cmd[2] = ha->idc_info.info1;
+	mbox_cmd[3] = ha->idc_info.info2;
+	mbox_cmd[4] = ha->idc_info.info3;
+
+	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
+					 mbox_cmd, mbox_sts);
+	if (status == QLA_ERROR)
+		ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
+			   mbox_sts[0]);
+	else
+	       DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IDC ACK posted\n",
+				 __func__));
+
+	return status;
+}
diff --git a/drivers/scsi/qla4xxx/ql4_nvram.c b/drivers/scsi/qla4xxx/ql4_nvram.c
index 7851f314ba9..325db1f2c09 100644
--- a/drivers/scsi/qla4xxx/ql4_nvram.c
+++ b/drivers/scsi/qla4xxx/ql4_nvram.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla4xxx/ql4_nvram.h b/drivers/scsi/qla4xxx/ql4_nvram.h
index 945cc328f57..dba0514d1c7 100644
--- a/drivers/scsi/qla4xxx/ql4_nvram.h
+++ b/drivers/scsi/qla4xxx/ql4_nvram.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 939d7261c37..499a92db1cf 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -10,6 +10,7 @@
 #include <linux/ratelimit.h>
 #include "ql4_def.h"
 #include "ql4_glbl.h"
+#include "ql4_inline.h"
 
 #include <asm-generic/io-64-nonatomic-lo-hi.h>
 
@@ -27,7 +28,7 @@
 #define CRB_BLK(off)	((off >> 20) & 0x3f)
 #define CRB_SUBBLK(off)	((off >> 16) & 0xf)
 #define CRB_WINDOW_2M	(0x130060)
-#define CRB_HI(off)	((qla4_8xxx_crb_hub_agt[CRB_BLK(off)] << 20) | \
+#define CRB_HI(off)	((qla4_82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
 			((off) & 0xf0000))
 #define QLA82XX_PCI_CAMQM_2M_END	(0x04800800UL)
 #define QLA82XX_PCI_CAMQM_2M_BASE	(0x000ff800UL)
@@ -51,7 +52,7 @@ static int qla4_8xxx_crb_table_initialized;
 	(crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
 	 QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
 static void
-qla4_8xxx_crb_addr_transform_setup(void)
+qla4_82xx_crb_addr_transform_setup(void)
 {
 	qla4_8xxx_crb_addr_transform(XDMA);
 	qla4_8xxx_crb_addr_transform(TIMR);
@@ -268,7 +269,7 @@ static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
 /*
  * top 12 bits of crb internal address (hub, agent)
  */
-static unsigned qla4_8xxx_crb_hub_agt[64] = {
+static unsigned qla4_82xx_crb_hub_agt[64] = {
 	0,
 	QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
 	QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
@@ -353,7 +354,7 @@ static char *qdev_state[] = {
  * side effect: lock crb window
  */
 static void
-qla4_8xxx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
+qla4_82xx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
 {
 	u32 win_read;
 
@@ -373,96 +374,115 @@ qla4_8xxx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
 }
 
 void
-qla4_8xxx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
+qla4_82xx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
 {
 	unsigned long flags = 0;
 	int rv;
 
-	rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
+	rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
 
 	BUG_ON(rv == -1);
 
 	if (rv == 1) {
 		write_lock_irqsave(&ha->hw_lock, flags);
-		qla4_8xxx_crb_win_lock(ha);
-		qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
+		qla4_82xx_crb_win_lock(ha);
+		qla4_82xx_pci_set_crbwindow_2M(ha, &off);
 	}
 
 	writel(data, (void __iomem *)off);
 
 	if (rv == 1) {
-		qla4_8xxx_crb_win_unlock(ha);
+		qla4_82xx_crb_win_unlock(ha);
 		write_unlock_irqrestore(&ha->hw_lock, flags);
 	}
 }
 
-int
-qla4_8xxx_rd_32(struct scsi_qla_host *ha, ulong off)
+uint32_t qla4_82xx_rd_32(struct scsi_qla_host *ha, ulong off)
 {
 	unsigned long flags = 0;
 	int rv;
 	u32 data;
 
-	rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
+	rv = qla4_82xx_pci_get_crb_addr_2M(ha, &off);
 
 	BUG_ON(rv == -1);
 
 	if (rv == 1) {
 		write_lock_irqsave(&ha->hw_lock, flags);
-		qla4_8xxx_crb_win_lock(ha);
-		qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
+		qla4_82xx_crb_win_lock(ha);
+		qla4_82xx_pci_set_crbwindow_2M(ha, &off);
 	}
 	data = readl((void __iomem *)off);
 
 	if (rv == 1) {
-		qla4_8xxx_crb_win_unlock(ha);
+		qla4_82xx_crb_win_unlock(ha);
 		write_unlock_irqrestore(&ha->hw_lock, flags);
 	}
 	return data;
 }
 
 /* Minidump related functions */
-static int qla4_8xxx_md_rw_32(struct scsi_qla_host *ha, uint32_t off,
-			      u32 data, uint8_t flag)
+int qla4_82xx_md_rd_32(struct scsi_qla_host *ha, uint32_t off, uint32_t *data)
 {
-	uint32_t win_read, off_value, rval = QLA_SUCCESS;
+	uint32_t win_read, off_value;
+	int rval = QLA_SUCCESS;
 
 	off_value  = off & 0xFFFF0000;
 	writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 
-	/* Read back value to make sure write has gone through before trying
+	/*
+	 * Read back value to make sure write has gone through before trying
 	 * to use it.
 	 */
 	win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 	if (win_read != off_value) {
 		DEBUG2(ql4_printk(KERN_INFO, ha,
 				  "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
-				   __func__, off_value, win_read, off));
-		return QLA_ERROR;
+				  __func__, off_value, win_read, off));
+		rval = QLA_ERROR;
+	} else {
+		off_value  = off & 0x0000FFFF;
+		*data = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
+					       ha->nx_pcibase));
 	}
+	return rval;
+}
 
-	off_value  = off & 0x0000FFFF;
+int qla4_82xx_md_wr_32(struct scsi_qla_host *ha, uint32_t off, uint32_t data)
+{
+	uint32_t win_read, off_value;
+	int rval = QLA_SUCCESS;
+
+	off_value  = off & 0xFFFF0000;
+	writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
 
-	if (flag)
+	/* Read back value to make sure write has gone through before trying
+	 * to use it.
+	 */
+	win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
+	if (win_read != off_value) {
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
+				  __func__, off_value, win_read, off));
+		rval = QLA_ERROR;
+	} else {
+		off_value  = off & 0x0000FFFF;
 		writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
 					      ha->nx_pcibase));
-	else
-		rval = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
-					      ha->nx_pcibase));
-
+	}
 	return rval;
 }
 
 #define CRB_WIN_LOCK_TIMEOUT 100000000
 
-int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha)
+int qla4_82xx_crb_win_lock(struct scsi_qla_host *ha)
 {
 	int i;
 	int done = 0, timeout = 0;
 
 	while (!done) {
 		/* acquire semaphore3 from PCI HW block */
-		done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
+		done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
 		if (done == 1)
 			break;
 		if (timeout >= CRB_WIN_LOCK_TIMEOUT)
@@ -478,32 +498,32 @@ int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha)
 				cpu_relax();    /*This a nop instr on i386*/
 		}
 	}
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
 	return 0;
 }
 
-void qla4_8xxx_crb_win_unlock(struct scsi_qla_host *ha)
+void qla4_82xx_crb_win_unlock(struct scsi_qla_host *ha)
 {
-	qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
+	qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
 }
 
 #define IDC_LOCK_TIMEOUT 100000000
 
 /**
- * qla4_8xxx_idc_lock - hw_lock
+ * qla4_82xx_idc_lock - hw_lock
  * @ha: pointer to adapter structure
  *
  * General purpose lock used to synchronize access to
  * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
  **/
-int qla4_8xxx_idc_lock(struct scsi_qla_host *ha)
+int qla4_82xx_idc_lock(struct scsi_qla_host *ha)
 {
 	int i;
 	int done = 0, timeout = 0;
 
 	while (!done) {
 		/* acquire semaphore5 from PCI HW block */
-		done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
+		done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
 		if (done == 1)
 			break;
 		if (timeout >= IDC_LOCK_TIMEOUT)
@@ -522,13 +542,13 @@ int qla4_8xxx_idc_lock(struct scsi_qla_host *ha)
 	return 0;
 }
 
-void qla4_8xxx_idc_unlock(struct scsi_qla_host *ha)
+void qla4_82xx_idc_unlock(struct scsi_qla_host *ha)
 {
-	qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
+	qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
 }
 
 int
-qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
+qla4_82xx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
 {
 	struct crb_128M_2M_sub_block_map *m;
 
@@ -562,44 +582,40 @@ qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
 	return 1;
 }
 
-/*  PCI Windowing for DDR regions.  */
-#define QLA82XX_ADDR_IN_RANGE(addr, low, high)            \
-	(((addr) <= (high)) && ((addr) >= (low)))
-
 /*
 * check memory access boundary.
 * used by test agent. support ddr access only for now
 */
 static unsigned long
-qla4_8xxx_pci_mem_bound_check(struct scsi_qla_host *ha,
+qla4_82xx_pci_mem_bound_check(struct scsi_qla_host *ha,
 		unsigned long long addr, int size)
 {
-	if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
-	    QLA82XX_ADDR_DDR_NET_MAX) ||
-	    !QLA82XX_ADDR_IN_RANGE(addr + size - 1,
-	    QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) ||
+	if (!QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
+	    QLA8XXX_ADDR_DDR_NET_MAX) ||
+	    !QLA8XXX_ADDR_IN_RANGE(addr + size - 1,
+	    QLA8XXX_ADDR_DDR_NET, QLA8XXX_ADDR_DDR_NET_MAX) ||
 	    ((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
 		return 0;
 	}
 	return 1;
 }
 
-static int qla4_8xxx_pci_set_window_warning_count;
+static int qla4_82xx_pci_set_window_warning_count;
 
 static unsigned long
-qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
+qla4_82xx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 {
 	int window;
 	u32 win_read;
 
-	if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
-	    QLA82XX_ADDR_DDR_NET_MAX)) {
+	if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
+	    QLA8XXX_ADDR_DDR_NET_MAX)) {
 		/* DDR network side */
 		window = MN_WIN(addr);
 		ha->ddr_mn_window = window;
-		qla4_8xxx_wr_32(ha, ha->mn_win_crb |
+		qla4_82xx_wr_32(ha, ha->mn_win_crb |
 		    QLA82XX_PCI_CRBSPACE, window);
-		win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
+		win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
 		    QLA82XX_PCI_CRBSPACE);
 		if ((win_read << 17) != window) {
 			ql4_printk(KERN_WARNING, ha,
@@ -607,8 +623,8 @@ qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 			__func__, window, win_read);
 		}
 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
-	} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
-				QLA82XX_ADDR_OCM0_MAX)) {
+	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
+				QLA8XXX_ADDR_OCM0_MAX)) {
 		unsigned int temp1;
 		/* if bits 19:18&17:11 are on */
 		if ((addr & 0x00ff800) == 0xff800) {
@@ -618,9 +634,9 @@ qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 
 		window = OCM_WIN(addr);
 		ha->ddr_mn_window = window;
-		qla4_8xxx_wr_32(ha, ha->mn_win_crb |
+		qla4_82xx_wr_32(ha, ha->mn_win_crb |
 		    QLA82XX_PCI_CRBSPACE, window);
-		win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
+		win_read = qla4_82xx_rd_32(ha, ha->mn_win_crb |
 		    QLA82XX_PCI_CRBSPACE);
 		temp1 = ((window & 0x1FF) << 7) |
 		    ((window & 0x0FFFE0000) >> 17);
@@ -630,14 +646,14 @@ qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 		}
 		addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
 
-	} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
+	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
 				QLA82XX_P3_ADDR_QDR_NET_MAX)) {
 		/* QDR network side */
 		window = MS_WIN(addr);
 		ha->qdr_sn_window = window;
-		qla4_8xxx_wr_32(ha, ha->ms_win_crb |
+		qla4_82xx_wr_32(ha, ha->ms_win_crb |
 		    QLA82XX_PCI_CRBSPACE, window);
-		win_read = qla4_8xxx_rd_32(ha,
+		win_read = qla4_82xx_rd_32(ha,
 		     ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
 		if (win_read != window) {
 			printk("%s: Written MSwin (0x%x) != Read "
@@ -650,8 +666,8 @@ qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 		 * peg gdb frequently accesses memory that doesn't exist,
 		 * this limits the chit chat so debugging isn't slowed down.
 		 */
-		if ((qla4_8xxx_pci_set_window_warning_count++ < 8) ||
-		    (qla4_8xxx_pci_set_window_warning_count%64 == 0)) {
+		if ((qla4_82xx_pci_set_window_warning_count++ < 8) ||
+		    (qla4_82xx_pci_set_window_warning_count%64 == 0)) {
 			printk("%s: Warning:%s Unknown address range!\n",
 			    __func__, DRIVER_NAME);
 		}
@@ -661,7 +677,7 @@ qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
 }
 
 /* check if address is in the same windows as the previous access */
-static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha,
+static int qla4_82xx_pci_is_same_window(struct scsi_qla_host *ha,
 		unsigned long long addr)
 {
 	int window;
@@ -669,20 +685,20 @@ static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha,
 
 	qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
 
-	if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
-	    QLA82XX_ADDR_DDR_NET_MAX)) {
+	if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_DDR_NET,
+	    QLA8XXX_ADDR_DDR_NET_MAX)) {
 		/* DDR network side */
 		BUG();	/* MN access can not come here */
-	} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
-	     QLA82XX_ADDR_OCM0_MAX)) {
+	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM0,
+	     QLA8XXX_ADDR_OCM0_MAX)) {
 		return 1;
-	} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
-	     QLA82XX_ADDR_OCM1_MAX)) {
+	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_OCM1,
+	     QLA8XXX_ADDR_OCM1_MAX)) {
 		return 1;
-	} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
+	} else if (QLA8XXX_ADDR_IN_RANGE(addr, QLA8XXX_ADDR_QDR_NET,
 	    qdr_max)) {
 		/* QDR network side */
-		window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
+		window = ((addr - QLA8XXX_ADDR_QDR_NET) >> 22) & 0x3f;
 		if (ha->qdr_sn_window == window)
 			return 1;
 	}
@@ -690,7 +706,7 @@ static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha,
 	return 0;
 }
 
-static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
+static int qla4_82xx_pci_mem_read_direct(struct scsi_qla_host *ha,
 		u64 off, void *data, int size)
 {
 	unsigned long flags;
@@ -707,9 +723,9 @@ static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
 	 * If attempting to access unknown address or straddle hw windows,
 	 * do not access.
 	 */
-	start = qla4_8xxx_pci_set_window(ha, off);
+	start = qla4_82xx_pci_set_window(ha, off);
 	if ((start == -1UL) ||
-	    (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
+	    (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 		write_unlock_irqrestore(&ha->hw_lock, flags);
 		printk(KERN_ERR"%s out of bound pci memory access. "
 				"offset is 0x%llx\n", DRIVER_NAME, off);
@@ -763,7 +779,7 @@ static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
 }
 
 static int
-qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
+qla4_82xx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
 		void *data, int size)
 {
 	unsigned long flags;
@@ -780,9 +796,9 @@ qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
 	 * If attempting to access unknown address or straddle hw windows,
 	 * do not access.
 	 */
-	start = qla4_8xxx_pci_set_window(ha, off);
+	start = qla4_82xx_pci_set_window(ha, off);
 	if ((start == -1UL) ||
-	    (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
+	    (qla4_82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
 		write_unlock_irqrestore(&ha->hw_lock, flags);
 		printk(KERN_ERR"%s out of bound pci memory access. "
 				"offset is 0x%llx\n", DRIVER_NAME, off);
@@ -835,13 +851,13 @@ qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
 #define MTU_FUDGE_FACTOR 100
 
 static unsigned long
-qla4_8xxx_decode_crb_addr(unsigned long addr)
+qla4_82xx_decode_crb_addr(unsigned long addr)
 {
 	int i;
 	unsigned long base_addr, offset, pci_base;
 
 	if (!qla4_8xxx_crb_table_initialized)
-		qla4_8xxx_crb_addr_transform_setup();
+		qla4_82xx_crb_addr_transform_setup();
 
 	pci_base = ADDR_ERROR;
 	base_addr = addr & 0xfff00000;
@@ -860,10 +876,10 @@ qla4_8xxx_decode_crb_addr(unsigned long addr)
 }
 
 static long rom_max_timeout = 100;
-static long qla4_8xxx_rom_lock_timeout = 100;
+static long qla4_82xx_rom_lock_timeout = 100;
 
 static int
-qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
+qla4_82xx_rom_lock(struct scsi_qla_host *ha)
 {
 	int i;
 	int done = 0, timeout = 0;
@@ -871,10 +887,10 @@ qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
 	while (!done) {
 		/* acquire semaphore2 from PCI HW block */
 
-		done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
+		done = qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
 		if (done == 1)
 			break;
-		if (timeout >= qla4_8xxx_rom_lock_timeout)
+		if (timeout >= qla4_82xx_rom_lock_timeout)
 			return -1;
 
 		timeout++;
@@ -887,24 +903,24 @@ qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
 				cpu_relax();    /*This a nop instr on i386*/
 		}
 	}
-	qla4_8xxx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
+	qla4_82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
 	return 0;
 }
 
 static void
-qla4_8xxx_rom_unlock(struct scsi_qla_host *ha)
+qla4_82xx_rom_unlock(struct scsi_qla_host *ha)
 {
-	qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
+	qla4_82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
 }
 
 static int
-qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha)
+qla4_82xx_wait_rom_done(struct scsi_qla_host *ha)
 {
 	long timeout = 0;
 	long done = 0 ;
 
 	while (done == 0) {
-		done = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
+		done = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
 		done &= 2;
 		timeout++;
 		if (timeout >= rom_max_timeout) {
@@ -917,40 +933,41 @@ qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha)
 }
 
 static int
-qla4_8xxx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
+qla4_82xx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
 {
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
-	if (qla4_8xxx_wait_rom_done(ha)) {
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
+	if (qla4_82xx_wait_rom_done(ha)) {
 		printk("%s: Error waiting for rom done\n", DRIVER_NAME);
 		return -1;
 	}
 	/* reset abyte_cnt and dummy_byte_cnt */
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 	udelay(10);
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
 
-	*valp = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
+	*valp = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
 	return 0;
 }
 
 static int
-qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
+qla4_82xx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
 {
 	int ret, loops = 0;
 
-	while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
+	while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 		udelay(100);
 		loops++;
 	}
 	if (loops >= 50000) {
-		printk("%s: qla4_8xxx_rom_lock failed\n", DRIVER_NAME);
+		ql4_printk(KERN_WARNING, ha, "%s: qla4_82xx_rom_lock failed\n",
+			   DRIVER_NAME);
 		return -1;
 	}
-	ret = qla4_8xxx_do_rom_fast_read(ha, addr, valp);
-	qla4_8xxx_rom_unlock(ha);
+	ret = qla4_82xx_do_rom_fast_read(ha, addr, valp);
+	qla4_82xx_rom_unlock(ha);
 	return ret;
 }
 
@@ -959,7 +976,7 @@ qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
  * to put the ISP into operational state
  **/
 static int
-qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
+qla4_82xx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 {
 	int addr, val;
 	int i ;
@@ -973,68 +990,68 @@ qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 	};
 
 	/* Halt all the indiviual PEGs and other blocks of the ISP */
-	qla4_8xxx_rom_lock(ha);
+	qla4_82xx_rom_lock(ha);
 
 	/* disable all I2Q */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
 
 	/* disable all niu interrupts */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
 	/* disable xge rx/tx */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
 	/* disable xg1 rx/tx */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
 	/* disable sideband mac */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
 	/* disable ap0 mac */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
 	/* disable ap1 mac */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
 
 	/* halt sre */
-	val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
+	val = qla4_82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
 
 	/* halt epg */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
 
 	/* halt timers */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
 
 	/* halt pegs */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
 	msleep(5);
 
 	/* big hammer */
 	if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
 		/* don't reset CAM block on reset */
-		qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
+		qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 	else
-		qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
+		qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
 
-	qla4_8xxx_rom_unlock(ha);
+	qla4_82xx_rom_unlock(ha);
 
 	/* Read the signature value from the flash.
 	 * Offset 0: Contain signature (0xcafecafe)
 	 * Offset 4: Offset and number of addr/value pairs
 	 * that present in CRB initialize sequence
 	 */
-	if (qla4_8xxx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
-	    qla4_8xxx_rom_fast_read(ha, 4, &n) != 0) {
+	if (qla4_82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
+	    qla4_82xx_rom_fast_read(ha, 4, &n) != 0) {
 		ql4_printk(KERN_WARNING, ha,
 			"[ERROR] Reading crb_init area: n: %08x\n", n);
 		return -1;
@@ -1065,8 +1082,8 @@ qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 	}
 
 	for (i = 0; i < n; i++) {
-		if (qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
-		    qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
+		if (qla4_82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
+		    qla4_82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
 		    0) {
 			kfree(buf);
 			return -1;
@@ -1080,7 +1097,7 @@ qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 		/* Translate internal CRB initialization
 		 * address to PCI bus address
 		 */
-		off = qla4_8xxx_decode_crb_addr((unsigned long)buf[i].addr) +
+		off = qla4_82xx_decode_crb_addr((unsigned long)buf[i].addr) +
 		    QLA82XX_PCI_CRBSPACE;
 		/* Not all CRB  addr/value pair to be written,
 		 * some of them are skipped
@@ -1125,7 +1142,7 @@ qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 			continue;
 		}
 
-		qla4_8xxx_wr_32(ha, off, buf[i].data);
+		qla4_82xx_wr_32(ha, off, buf[i].data);
 
 		/* ISP requires much bigger delay to settle down,
 		 * else crb_window returns 0xffffffff
@@ -1142,25 +1159,25 @@ qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 	kfree(buf);
 
 	/* Resetting the data and instruction cache */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
 
 	/* Clear all protocol processing engines */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
 
 	return 0;
 }
 
 static int
-qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
+qla4_82xx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
 {
 	int  i, rval = 0;
 	long size = 0;
@@ -1175,14 +1192,14 @@ qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
 	    ha->host_no, __func__, flashaddr, image_start));
 
 	for (i = 0; i < size; i++) {
-		if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
-		    (qla4_8xxx_rom_fast_read(ha, flashaddr + 4,
+		if ((qla4_82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
+		    (qla4_82xx_rom_fast_read(ha, flashaddr + 4,
 		    (int *)&high))) {
 			rval = -1;
 			goto exit_load_from_flash;
 		}
 		data = ((u64)high << 32) | low ;
-		rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
+		rval = qla4_82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
 		if (rval)
 			goto exit_load_from_flash;
 
@@ -1197,20 +1214,20 @@ qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
 	udelay(100);
 
 	read_lock(&ha->hw_lock);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
+	qla4_82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
 	read_unlock(&ha->hw_lock);
 
 exit_load_from_flash:
 	return rval;
 }
 
-static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
+static int qla4_82xx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
 {
 	u32 rst;
 
-	qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
-	if (qla4_8xxx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
+	qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
+	if (qla4_82xx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
 		printk(KERN_WARNING "%s: Error during CRB Initialization\n",
 		    __func__);
 		return QLA_ERROR;
@@ -1223,12 +1240,12 @@ static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
 	 * To get around this, QM is brought out of reset.
 	 */
 
-	rst = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
+	rst = qla4_82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
 	/* unreset qm */
 	rst &= ~(1 << 28);
-	qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
+	qla4_82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
 
-	if (qla4_8xxx_load_from_flash(ha, image_start)) {
+	if (qla4_82xx_load_from_flash(ha, image_start)) {
 		printk("%s: Error trying to load fw from flash!\n", __func__);
 		return QLA_ERROR;
 	}
@@ -1237,7 +1254,7 @@ static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
 }
 
 int
-qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
+qla4_82xx_pci_mem_read_2M(struct scsi_qla_host *ha,
 		u64 off, void *data, int size)
 {
 	int i, j = 0, k, start, end, loop, sz[2], off0[2];
@@ -1249,12 +1266,12 @@ qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
 	 * If not MN, go check for MS or invalid.
 	 */
 
-	if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
+	if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
 		mem_crb = QLA82XX_CRB_QDR_NET;
 	else {
 		mem_crb = QLA82XX_CRB_DDR_NET;
-		if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
-			return qla4_8xxx_pci_mem_read_direct(ha,
+		if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
+			return qla4_82xx_pci_mem_read_direct(ha,
 					off, data, size);
 	}
 
@@ -1270,16 +1287,16 @@ qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
 
 	for (i = 0; i < loop; i++) {
 		temp = off8 + (i << shift_amount);
-		qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
+		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
 		temp = 0;
-		qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
+		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
 		temp = MIU_TA_CTL_ENABLE;
-		qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
-		temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
-		qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
+		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
+		temp = MIU_TA_CTL_START_ENABLE;
+		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
 
 		for (j = 0; j < MAX_CTL_CHECK; j++) {
-			temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
+			temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
 			if ((temp & MIU_TA_CTL_BUSY) == 0)
 				break;
 		}
@@ -1294,7 +1311,7 @@ qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
 		start = off0[i] >> 2;
 		end   = (off0[i] + sz[i] - 1) >> 2;
 		for (k = start; k <= end; k++) {
-			temp = qla4_8xxx_rd_32(ha,
+			temp = qla4_82xx_rd_32(ha,
 				mem_crb + MIU_TEST_AGT_RDDATA(k));
 			word[i] |= ((uint64_t)temp << (32 * (k & 1)));
 		}
@@ -1328,7 +1345,7 @@ qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
 }
 
 int
-qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
+qla4_82xx_pci_mem_write_2M(struct scsi_qla_host *ha,
 		u64 off, void *data, int size)
 {
 	int i, j, ret = 0, loop, sz[2], off0;
@@ -1339,12 +1356,12 @@ qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
 	/*
 	 * If not MN, go check for MS or invalid.
 	 */
-	if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
+	if (off >= QLA8XXX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
 		mem_crb = QLA82XX_CRB_QDR_NET;
 	else {
 		mem_crb = QLA82XX_CRB_DDR_NET;
-		if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
-			return qla4_8xxx_pci_mem_write_direct(ha,
+		if (qla4_82xx_pci_mem_bound_check(ha, off, size) == 0)
+			return qla4_82xx_pci_mem_write_direct(ha,
 					off, data, size);
 	}
 
@@ -1359,7 +1376,7 @@ qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
 	startword = (off & 0xf)/8;
 
 	for (i = 0; i < loop; i++) {
-		if (qla4_8xxx_pci_mem_read_2M(ha, off8 +
+		if (qla4_82xx_pci_mem_read_2M(ha, off8 +
 		    (i << shift_amount), &word[i * scale], 8))
 			return -1;
 	}
@@ -1395,27 +1412,27 @@ qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
 
 	for (i = 0; i < loop; i++) {
 		temp = off8 + (i << shift_amount);
-		qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
+		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
 		temp = 0;
-		qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
+		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
 		temp = word[i * scale] & 0xffffffff;
-		qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
+		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
 		temp = (word[i * scale] >> 32) & 0xffffffff;
-		qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
+		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
 		temp = word[i*scale + 1] & 0xffffffff;
-		qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
+		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
 		    temp);
 		temp = (word[i*scale + 1] >> 32) & 0xffffffff;
-		qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
+		qla4_82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
 		    temp);
 
-		temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
-		qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
-		temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
-		qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
+		temp = MIU_TA_CTL_WRITE_ENABLE;
+		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
+		temp = MIU_TA_CTL_WRITE_START;
+		qla4_82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
 
 		for (j = 0; j < MAX_CTL_CHECK; j++) {
-			temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
+			temp = qla4_82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
 			if ((temp & MIU_TA_CTL_BUSY) == 0)
 				break;
 		}
@@ -1433,14 +1450,14 @@ qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
 	return ret;
 }
 
-static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
+static int qla4_82xx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
 {
 	u32 val = 0;
 	int retries = 60;
 
 	if (!pegtune_val) {
 		do {
-			val = qla4_8xxx_rd_32(ha, CRB_CMDPEG_STATE);
+			val = qla4_82xx_rd_32(ha, CRB_CMDPEG_STATE);
 			if ((val == PHAN_INITIALIZE_COMPLETE) ||
 			    (val == PHAN_INITIALIZE_ACK))
 				return 0;
@@ -1450,7 +1467,7 @@ static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
 		} while (--retries);
 
 		if (!retries) {
-			pegtune_val = qla4_8xxx_rd_32(ha,
+			pegtune_val = qla4_82xx_rd_32(ha,
 				QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
 			printk(KERN_WARNING "%s: init failed, "
 				"pegtune_val = %x\n", __func__, pegtune_val);
@@ -1460,21 +1477,21 @@ static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
 	return 0;
 }
 
-static int qla4_8xxx_rcvpeg_ready(struct scsi_qla_host *ha)
+static int qla4_82xx_rcvpeg_ready(struct scsi_qla_host *ha)
 {
 	uint32_t state = 0;
 	int loops = 0;
 
 	/* Window 1 call */
 	read_lock(&ha->hw_lock);
-	state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
+	state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
 	read_unlock(&ha->hw_lock);
 
 	while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
 		udelay(100);
 		/* Window 1 call */
 		read_lock(&ha->hw_lock);
-		state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
+		state = qla4_82xx_rd_32(ha, CRB_RCVPEG_STATE);
 		read_unlock(&ha->hw_lock);
 
 		loops++;
@@ -1494,11 +1511,21 @@ qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
 {
 	uint32_t drv_active;
 
-	drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-	drv_active |= (1 << (ha->func_num * 4));
+	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+
+	/*
+	 * For ISP8324, drv_active register has 1 bit per function,
+	 * shift 1 by func_num to set a bit for the function.
+	 * For ISP8022, drv_active has 4 bits per function
+	 */
+	if (is_qla8032(ha))
+		drv_active |= (1 << ha->func_num);
+	else
+		drv_active |= (1 << (ha->func_num * 4));
+
 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
 		   __func__, ha->host_no, drv_active);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
 }
 
 void
@@ -1506,50 +1533,87 @@ qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
 {
 	uint32_t drv_active;
 
-	drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-	drv_active &= ~(1 << (ha->func_num * 4));
+	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+
+	/*
+	 * For ISP8324, drv_active register has 1 bit per function,
+	 * shift 1 by func_num to set a bit for the function.
+	 * For ISP8022, drv_active has 4 bits per function
+	 */
+	if (is_qla8032(ha))
+		drv_active &= ~(1 << (ha->func_num));
+	else
+		drv_active &= ~(1 << (ha->func_num * 4));
+
 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
 		   __func__, ha->host_no, drv_active);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_ACTIVE, drv_active);
 }
 
-static inline int
-qla4_8xxx_need_reset(struct scsi_qla_host *ha)
+inline int qla4_8xxx_need_reset(struct scsi_qla_host *ha)
 {
 	uint32_t drv_state, drv_active;
 	int rval;
 
-	drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-	drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
-	rval = drv_state & (1 << (ha->func_num * 4));
+	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+	drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
+
+	/*
+	 * For ISP8324, drv_active register has 1 bit per function,
+	 * shift 1 by func_num to set a bit for the function.
+	 * For ISP8022, drv_active has 4 bits per function
+	 */
+	if (is_qla8032(ha))
+		rval = drv_state & (1 << ha->func_num);
+	else
+		rval = drv_state & (1 << (ha->func_num * 4));
+
 	if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
 		rval = 1;
 
 	return rval;
 }
 
-static inline void
-qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
+void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
 {
 	uint32_t drv_state;
 
-	drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
-	drv_state |= (1 << (ha->func_num * 4));
+	drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
+
+	/*
+	 * For ISP8324, drv_active register has 1 bit per function,
+	 * shift 1 by func_num to set a bit for the function.
+	 * For ISP8022, drv_active has 4 bits per function
+	 */
+	if (is_qla8032(ha))
+		drv_state |= (1 << ha->func_num);
+	else
+		drv_state |= (1 << (ha->func_num * 4));
+
 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
 		   __func__, ha->host_no, drv_state);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
 }
 
-static inline void
-qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
+void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
 {
 	uint32_t drv_state;
 
-	drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
-	drv_state &= ~(1 << (ha->func_num * 4));
+	drv_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
+
+	/*
+	 * For ISP8324, drv_active register has 1 bit per function,
+	 * shift 1 by func_num to set a bit for the function.
+	 * For ISP8022, drv_active has 4 bits per function
+	 */
+	if (is_qla8032(ha))
+		drv_state &= ~(1 << ha->func_num);
+	else
+		drv_state &= ~(1 << (ha->func_num * 4));
+
 	ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
 		   __func__, ha->host_no, drv_state);
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, drv_state);
 }
 
 static inline void
@@ -1557,49 +1621,56 @@ qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
 {
 	uint32_t qsnt_state;
 
-	qsnt_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
-	qsnt_state |= (2 << (ha->func_num * 4));
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
+	qsnt_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_STATE);
+
+	/*
+	 * For ISP8324, drv_active register has 1 bit per function,
+	 * shift 1 by func_num to set a bit for the function.
+	 * For ISP8022, drv_active has 4 bits per function.
+	 */
+	if (is_qla8032(ha))
+		qsnt_state |= (1 << ha->func_num);
+	else
+		qsnt_state |= (2 << (ha->func_num * 4));
+
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, qsnt_state);
 }
 
 
 static int
-qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
+qla4_82xx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
 {
-	int pcie_cap;
 	uint16_t lnk;
 
 	/* scrub dma mask expansion register */
-	qla4_8xxx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
+	qla4_82xx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
 
 	/* Overwrite stale initialization register values */
-	qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
-	qla4_8xxx_wr_32(ha, CRB_RCVPEG_STATE, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
-	qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
+	qla4_82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
+	qla4_82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
+	qla4_82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
 
-	if (qla4_8xxx_load_fw(ha, image_start) != QLA_SUCCESS) {
+	if (qla4_82xx_load_fw(ha, image_start) != QLA_SUCCESS) {
 		printk("%s: Error trying to start fw!\n", __func__);
 		return QLA_ERROR;
 	}
 
 	/* Handshake with the card before we register the devices. */
-	if (qla4_8xxx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
+	if (qla4_82xx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
 		printk("%s: Error during card handshake!\n", __func__);
 		return QLA_ERROR;
 	}
 
 	/* Negotiated Link width */
-	pcie_cap = pci_pcie_cap(ha->pdev);
-	pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
+	pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
 	ha->link_width = (lnk >> 4) & 0x3f;
 
 	/* Synchronize with Receive peg */
-	return qla4_8xxx_rcvpeg_ready(ha);
+	return qla4_82xx_rcvpeg_ready(ha);
 }
 
-static int
-qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
+int qla4_82xx_try_start_fw(struct scsi_qla_host *ha)
 {
 	int rval = QLA_ERROR;
 
@@ -1617,7 +1688,7 @@ qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
 
 	ql4_printk(KERN_INFO, ha,
 	    "FW: Attempting to load firmware from flash...\n");
-	rval = qla4_8xxx_start_firmware(ha, ha->hw.flt_region_fw);
+	rval = qla4_82xx_start_firmware(ha, ha->hw.flt_region_fw);
 
 	if (rval != QLA_SUCCESS) {
 		ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
@@ -1628,9 +1699,9 @@ qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
 	return rval;
 }
 
-static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha)
+void qla4_82xx_rom_lock_recovery(struct scsi_qla_host *ha)
 {
-	if (qla4_8xxx_rom_lock(ha)) {
+	if (qla4_82xx_rom_lock(ha)) {
 		/* Someone else is holding the lock. */
 		dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
 	}
@@ -1640,25 +1711,25 @@ static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha)
 	 * else died while holding it.
 	 * In either case, unlock.
 	 */
-	qla4_8xxx_rom_unlock(ha);
+	qla4_82xx_rom_unlock(ha);
 }
 
 static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t r_addr, r_stride, loop_cnt, i, r_value;
-	struct qla82xx_minidump_entry_crb *crb_hdr;
+	struct qla8xxx_minidump_entry_crb *crb_hdr;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	crb_hdr = (struct qla82xx_minidump_entry_crb *)entry_hdr;
+	crb_hdr = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
 	r_addr = crb_hdr->addr;
 	r_stride = crb_hdr->crb_strd.addr_stride;
 	loop_cnt = crb_hdr->op_count;
 
 	for (i = 0; i < loop_cnt; i++) {
-		r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
+		ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
 		*data_ptr++ = cpu_to_le32(r_addr);
 		*data_ptr++ = cpu_to_le32(r_value);
 		r_addr += r_stride;
@@ -1667,19 +1738,19 @@ static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
 }
 
 static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
-				 struct qla82xx_minidump_entry_hdr *entry_hdr,
+				 struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				 uint32_t **d_ptr)
 {
 	uint32_t addr, r_addr, c_addr, t_r_addr;
 	uint32_t i, k, loop_count, t_value, r_cnt, r_value;
 	unsigned long p_wait, w_time, p_mask;
 	uint32_t c_value_w, c_value_r;
-	struct qla82xx_minidump_entry_cache *cache_hdr;
+	struct qla8xxx_minidump_entry_cache *cache_hdr;
 	int rval = QLA_ERROR;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
+	cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
 
 	loop_count = cache_hdr->op_count;
 	r_addr = cache_hdr->read_addr;
@@ -1693,16 +1764,16 @@ static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
 	p_mask = cache_hdr->cache_ctrl.poll_mask;
 
 	for (i = 0; i < loop_count; i++) {
-		qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
+		ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
 
 		if (c_value_w)
-			qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
+			ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
 
 		if (p_mask) {
 			w_time = jiffies + p_wait;
 			do {
-				c_value_r = qla4_8xxx_md_rw_32(ha, c_addr,
-								0, 0);
+				ha->isp_ops->rd_reg_indirect(ha, c_addr,
+							     &c_value_r);
 				if ((c_value_r & p_mask) == 0) {
 					break;
 				} else if (time_after_eq(jiffies, w_time)) {
@@ -1714,7 +1785,7 @@ static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
 
 		addr = r_addr;
 		for (k = 0; k < r_cnt; k++) {
-			r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
+			ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
 			*data_ptr++ = cpu_to_le32(r_value);
 			addr += cache_hdr->read_ctrl.read_addr_stride;
 		}
@@ -1726,9 +1797,9 @@ static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
 }
 
 static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr)
+				struct qla8xxx_minidump_entry_hdr *entry_hdr)
 {
-	struct qla82xx_minidump_entry_crb *crb_entry;
+	struct qla8xxx_minidump_entry_crb *crb_entry;
 	uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
 	uint32_t crb_addr;
 	unsigned long wtime;
@@ -1738,58 +1809,59 @@ static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
 	tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
 						ha->fw_dump_tmplt_hdr;
-	crb_entry = (struct qla82xx_minidump_entry_crb *)entry_hdr;
+	crb_entry = (struct qla8xxx_minidump_entry_crb *)entry_hdr;
 
 	crb_addr = crb_entry->addr;
 	for (i = 0; i < crb_entry->op_count; i++) {
 		opcode = crb_entry->crb_ctrl.opcode;
-		if (opcode & QLA82XX_DBG_OPCODE_WR) {
-			qla4_8xxx_md_rw_32(ha, crb_addr,
-					   crb_entry->value_1, 1);
-			opcode &= ~QLA82XX_DBG_OPCODE_WR;
+		if (opcode & QLA8XXX_DBG_OPCODE_WR) {
+			ha->isp_ops->wr_reg_indirect(ha, crb_addr,
+						     crb_entry->value_1);
+			opcode &= ~QLA8XXX_DBG_OPCODE_WR;
 		}
-		if (opcode & QLA82XX_DBG_OPCODE_RW) {
-			read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
-			qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
-			opcode &= ~QLA82XX_DBG_OPCODE_RW;
+		if (opcode & QLA8XXX_DBG_OPCODE_RW) {
+			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
+			ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
+			opcode &= ~QLA8XXX_DBG_OPCODE_RW;
 		}
-		if (opcode & QLA82XX_DBG_OPCODE_AND) {
-			read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+		if (opcode & QLA8XXX_DBG_OPCODE_AND) {
+			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
 			read_value &= crb_entry->value_2;
-			opcode &= ~QLA82XX_DBG_OPCODE_AND;
-			if (opcode & QLA82XX_DBG_OPCODE_OR) {
+			opcode &= ~QLA8XXX_DBG_OPCODE_AND;
+			if (opcode & QLA8XXX_DBG_OPCODE_OR) {
 				read_value |= crb_entry->value_3;
-				opcode &= ~QLA82XX_DBG_OPCODE_OR;
+				opcode &= ~QLA8XXX_DBG_OPCODE_OR;
 			}
-			qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
+			ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
 		}
-		if (opcode & QLA82XX_DBG_OPCODE_OR) {
-			read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+		if (opcode & QLA8XXX_DBG_OPCODE_OR) {
+			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
 			read_value |= crb_entry->value_3;
-			qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
-			opcode &= ~QLA82XX_DBG_OPCODE_OR;
+			ha->isp_ops->wr_reg_indirect(ha, crb_addr, read_value);
+			opcode &= ~QLA8XXX_DBG_OPCODE_OR;
 		}
-		if (opcode & QLA82XX_DBG_OPCODE_POLL) {
+		if (opcode & QLA8XXX_DBG_OPCODE_POLL) {
 			poll_time = crb_entry->crb_strd.poll_timeout;
 			wtime = jiffies + poll_time;
-			read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
+			ha->isp_ops->rd_reg_indirect(ha, crb_addr, &read_value);
 
 			do {
 				if ((read_value & crb_entry->value_2) ==
-				    crb_entry->value_1)
+				    crb_entry->value_1) {
 					break;
-				else if (time_after_eq(jiffies, wtime)) {
+				} else if (time_after_eq(jiffies, wtime)) {
 					/* capturing dump failed */
 					rval = QLA_ERROR;
 					break;
-				} else
-					read_value = qla4_8xxx_md_rw_32(ha,
-								crb_addr, 0, 0);
+				} else {
+					ha->isp_ops->rd_reg_indirect(ha,
+							crb_addr, &read_value);
+				}
 			} while (1);
-			opcode &= ~QLA82XX_DBG_OPCODE_POLL;
+			opcode &= ~QLA8XXX_DBG_OPCODE_POLL;
 		}
 
-		if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
+		if (opcode & QLA8XXX_DBG_OPCODE_RDSTATE) {
 			if (crb_entry->crb_strd.state_index_a) {
 				index = crb_entry->crb_strd.state_index_a;
 				addr = tmplt_hdr->saved_state_array[index];
@@ -1797,13 +1869,13 @@ static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
 				addr = crb_addr;
 			}
 
-			read_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
+			ha->isp_ops->rd_reg_indirect(ha, addr, &read_value);
 			index = crb_entry->crb_ctrl.state_index_v;
 			tmplt_hdr->saved_state_array[index] = read_value;
-			opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
+			opcode &= ~QLA8XXX_DBG_OPCODE_RDSTATE;
 		}
 
-		if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
+		if (opcode & QLA8XXX_DBG_OPCODE_WRSTATE) {
 			if (crb_entry->crb_strd.state_index_a) {
 				index = crb_entry->crb_strd.state_index_a;
 				addr = tmplt_hdr->saved_state_array[index];
@@ -1819,11 +1891,11 @@ static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
 				read_value = crb_entry->value_1;
 			}
 
-			qla4_8xxx_md_rw_32(ha, addr, read_value, 1);
-			opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
+			ha->isp_ops->wr_reg_indirect(ha, addr, read_value);
+			opcode &= ~QLA8XXX_DBG_OPCODE_WRSTATE;
 		}
 
-		if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
+		if (opcode & QLA8XXX_DBG_OPCODE_MDSTATE) {
 			index = crb_entry->crb_ctrl.state_index_v;
 			read_value = tmplt_hdr->saved_state_array[index];
 			read_value <<= crb_entry->crb_ctrl.shl;
@@ -1833,7 +1905,7 @@ static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
 			read_value |= crb_entry->value_3;
 			read_value += crb_entry->value_1;
 			tmplt_hdr->saved_state_array[index] = read_value;
-			opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
+			opcode &= ~QLA8XXX_DBG_OPCODE_MDSTATE;
 		}
 		crb_addr += crb_entry->crb_strd.addr_stride;
 	}
@@ -1842,15 +1914,15 @@ static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
 }
 
 static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t r_addr, r_stride, loop_cnt, i, r_value;
-	struct qla82xx_minidump_entry_rdocm *ocm_hdr;
+	struct qla8xxx_minidump_entry_rdocm *ocm_hdr;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	ocm_hdr = (struct qla82xx_minidump_entry_rdocm *)entry_hdr;
+	ocm_hdr = (struct qla8xxx_minidump_entry_rdocm *)entry_hdr;
 	r_addr = ocm_hdr->read_addr;
 	r_stride = ocm_hdr->read_addr_stride;
 	loop_cnt = ocm_hdr->op_count;
@@ -1865,20 +1937,20 @@ static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
 		r_addr += r_stride;
 	}
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
-			  __func__, (loop_cnt * sizeof(uint32_t))));
+		__func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))));
 	*d_ptr = data_ptr;
 }
 
 static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
-	struct qla82xx_minidump_entry_mux *mux_hdr;
+	struct qla8xxx_minidump_entry_mux *mux_hdr;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	mux_hdr = (struct qla82xx_minidump_entry_mux *)entry_hdr;
+	mux_hdr = (struct qla8xxx_minidump_entry_mux *)entry_hdr;
 	r_addr = mux_hdr->read_addr;
 	s_addr = mux_hdr->select_addr;
 	s_stride = mux_hdr->select_value_stride;
@@ -1886,8 +1958,8 @@ static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
 	loop_cnt = mux_hdr->op_count;
 
 	for (i = 0; i < loop_cnt; i++) {
-		qla4_8xxx_md_rw_32(ha, s_addr, s_value, 1);
-		r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
+		ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
+		ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
 		*data_ptr++ = cpu_to_le32(s_value);
 		*data_ptr++ = cpu_to_le32(r_value);
 		s_value += s_stride;
@@ -1896,16 +1968,16 @@ static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
 }
 
 static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t addr, r_addr, c_addr, t_r_addr;
 	uint32_t i, k, loop_count, t_value, r_cnt, r_value;
 	uint32_t c_value_w;
-	struct qla82xx_minidump_entry_cache *cache_hdr;
+	struct qla8xxx_minidump_entry_cache *cache_hdr;
 	uint32_t *data_ptr = *d_ptr;
 
-	cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
+	cache_hdr = (struct qla8xxx_minidump_entry_cache *)entry_hdr;
 	loop_count = cache_hdr->op_count;
 	r_addr = cache_hdr->read_addr;
 	c_addr = cache_hdr->control_addr;
@@ -1916,11 +1988,11 @@ static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
 	r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
 
 	for (i = 0; i < loop_count; i++) {
-		qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
-		qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
+		ha->isp_ops->wr_reg_indirect(ha, t_r_addr, t_value);
+		ha->isp_ops->wr_reg_indirect(ha, c_addr, c_value_w);
 		addr = r_addr;
 		for (k = 0; k < r_cnt; k++) {
-			r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
+			ha->isp_ops->rd_reg_indirect(ha, addr, &r_value);
 			*data_ptr++ = cpu_to_le32(r_value);
 			addr += cache_hdr->read_ctrl.read_addr_stride;
 		}
@@ -1930,27 +2002,27 @@ static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
 }
 
 static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t s_addr, r_addr;
 	uint32_t r_stride, r_value, r_cnt, qid = 0;
 	uint32_t i, k, loop_cnt;
-	struct qla82xx_minidump_entry_queue *q_hdr;
+	struct qla8xxx_minidump_entry_queue *q_hdr;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	q_hdr = (struct qla82xx_minidump_entry_queue *)entry_hdr;
+	q_hdr = (struct qla8xxx_minidump_entry_queue *)entry_hdr;
 	s_addr = q_hdr->select_addr;
 	r_cnt = q_hdr->rd_strd.read_addr_cnt;
 	r_stride = q_hdr->rd_strd.read_addr_stride;
 	loop_cnt = q_hdr->op_count;
 
 	for (i = 0; i < loop_cnt; i++) {
-		qla4_8xxx_md_rw_32(ha, s_addr, qid, 1);
+		ha->isp_ops->wr_reg_indirect(ha, s_addr, qid);
 		r_addr = q_hdr->read_addr;
 		for (k = 0; k < r_cnt; k++) {
-			r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
+			ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
 			*data_ptr++ = cpu_to_le32(r_value);
 			r_addr += r_stride;
 		}
@@ -1962,17 +2034,17 @@ static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
 #define MD_DIRECT_ROM_WINDOW		0x42110030
 #define MD_DIRECT_ROM_READ_BASE		0x42150000
 
-static void qla4_8xxx_minidump_process_rdrom(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+static void qla4_82xx_minidump_process_rdrom(struct scsi_qla_host *ha,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t r_addr, r_value;
 	uint32_t i, loop_cnt;
-	struct qla82xx_minidump_entry_rdrom *rom_hdr;
+	struct qla8xxx_minidump_entry_rdrom *rom_hdr;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	rom_hdr = (struct qla82xx_minidump_entry_rdrom *)entry_hdr;
+	rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
 	r_addr = rom_hdr->read_addr;
 	loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
 
@@ -1981,11 +2053,11 @@ static void qla4_8xxx_minidump_process_rdrom(struct scsi_qla_host *ha,
 			   __func__, r_addr, loop_cnt));
 
 	for (i = 0; i < loop_cnt; i++) {
-		qla4_8xxx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
-				   (r_addr & 0xFFFF0000), 1);
-		r_value = qla4_8xxx_md_rw_32(ha,
-					     MD_DIRECT_ROM_READ_BASE +
-					     (r_addr & 0x0000FFFF), 0, 0);
+		ha->isp_ops->wr_reg_indirect(ha, MD_DIRECT_ROM_WINDOW,
+					     (r_addr & 0xFFFF0000));
+		ha->isp_ops->rd_reg_indirect(ha,
+				MD_DIRECT_ROM_READ_BASE + (r_addr & 0x0000FFFF),
+				&r_value);
 		*data_ptr++ = cpu_to_le32(r_value);
 		r_addr += sizeof(uint32_t);
 	}
@@ -1997,17 +2069,17 @@ static void qla4_8xxx_minidump_process_rdrom(struct scsi_qla_host *ha,
 #define MD_MIU_TEST_AGT_ADDR_HI		0x41000098
 
 static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				uint32_t **d_ptr)
 {
 	uint32_t r_addr, r_value, r_data;
 	uint32_t i, j, loop_cnt;
-	struct qla82xx_minidump_entry_rdmem *m_hdr;
+	struct qla8xxx_minidump_entry_rdmem *m_hdr;
 	unsigned long flags;
 	uint32_t *data_ptr = *d_ptr;
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
-	m_hdr = (struct qla82xx_minidump_entry_rdmem *)entry_hdr;
+	m_hdr = (struct qla8xxx_minidump_entry_rdmem *)entry_hdr;
 	r_addr = m_hdr->read_addr;
 	loop_cnt = m_hdr->read_data_size/16;
 
@@ -2035,17 +2107,19 @@ static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
 
 	write_lock_irqsave(&ha->hw_lock, flags);
 	for (i = 0; i < loop_cnt; i++) {
-		qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
+		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_LO,
+					     r_addr);
 		r_value = 0;
-		qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
+		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_ADDR_HI,
+					     r_value);
 		r_value = MIU_TA_CTL_ENABLE;
-		qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
-		r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
-		qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
+		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
+		r_value = MIU_TA_CTL_START_ENABLE;
+		ha->isp_ops->wr_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL, r_value);
 
 		for (j = 0; j < MAX_CTL_CHECK; j++) {
-			r_value = qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL,
-						     0, 0);
+			ha->isp_ops->rd_reg_indirect(ha, MD_MIU_TEST_AGT_CTRL,
+						     &r_value);
 			if ((r_value & MIU_TA_CTL_BUSY) == 0)
 				break;
 		}
@@ -2059,9 +2133,9 @@ static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
 		}
 
 		for (j = 0; j < 4; j++) {
-			r_data = qla4_8xxx_md_rw_32(ha,
-						    MD_MIU_TEST_AGT_RDDATA[j],
-						    0, 0);
+			ha->isp_ops->rd_reg_indirect(ha,
+						     MD_MIU_TEST_AGT_RDDATA[j],
+						     &r_data);
 			*data_ptr++ = cpu_to_le32(r_data);
 		}
 
@@ -2076,25 +2150,215 @@ static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
 	return QLA_SUCCESS;
 }
 
-static void ql4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
-				struct qla82xx_minidump_entry_hdr *entry_hdr,
+static void qla4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
 				int index)
 {
-	entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
+	entry_hdr->d_ctrl.driver_flags |= QLA8XXX_DBG_SKIPPED_FLAG;
 	DEBUG2(ql4_printk(KERN_INFO, ha,
 			  "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
 			  ha->host_no, index, entry_hdr->entry_type,
 			  entry_hdr->d_ctrl.entry_capture_mask));
 }
 
+/* ISP83xx functions to process new minidump entries... */
+static uint32_t qla83xx_minidump_process_pollrd(struct scsi_qla_host *ha,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
+				uint32_t **d_ptr)
+{
+	uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
+	uint16_t s_stride, i;
+	uint32_t *data_ptr = *d_ptr;
+	uint32_t rval = QLA_SUCCESS;
+	struct qla83xx_minidump_entry_pollrd *pollrd_hdr;
+
+	pollrd_hdr = (struct qla83xx_minidump_entry_pollrd *)entry_hdr;
+	s_addr = le32_to_cpu(pollrd_hdr->select_addr);
+	r_addr = le32_to_cpu(pollrd_hdr->read_addr);
+	s_value = le32_to_cpu(pollrd_hdr->select_value);
+	s_stride = le32_to_cpu(pollrd_hdr->select_value_stride);
+
+	poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
+	poll_mask = le32_to_cpu(pollrd_hdr->poll_mask);
+
+	for (i = 0; i < le32_to_cpu(pollrd_hdr->op_count); i++) {
+		ha->isp_ops->wr_reg_indirect(ha, s_addr, s_value);
+		poll_wait = le32_to_cpu(pollrd_hdr->poll_wait);
+		while (1) {
+			ha->isp_ops->rd_reg_indirect(ha, s_addr, &r_value);
+
+			if ((r_value & poll_mask) != 0) {
+				break;
+			} else {
+				msleep(1);
+				if (--poll_wait == 0) {
+					ql4_printk(KERN_ERR, ha, "%s: TIMEOUT\n",
+						   __func__);
+					rval = QLA_ERROR;
+					goto exit_process_pollrd;
+				}
+			}
+		}
+		ha->isp_ops->rd_reg_indirect(ha, r_addr, &r_value);
+		*data_ptr++ = cpu_to_le32(s_value);
+		*data_ptr++ = cpu_to_le32(r_value);
+		s_value += s_stride;
+	}
+
+	*d_ptr = data_ptr;
+
+exit_process_pollrd:
+	return rval;
+}
+
+static void qla83xx_minidump_process_rdmux2(struct scsi_qla_host *ha,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
+				uint32_t **d_ptr)
+{
+	uint32_t sel_val1, sel_val2, t_sel_val, data, i;
+	uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
+	struct qla83xx_minidump_entry_rdmux2 *rdmux2_hdr;
+	uint32_t *data_ptr = *d_ptr;
+
+	rdmux2_hdr = (struct qla83xx_minidump_entry_rdmux2 *)entry_hdr;
+	sel_val1 = le32_to_cpu(rdmux2_hdr->select_value_1);
+	sel_val2 = le32_to_cpu(rdmux2_hdr->select_value_2);
+	sel_addr1 = le32_to_cpu(rdmux2_hdr->select_addr_1);
+	sel_addr2 = le32_to_cpu(rdmux2_hdr->select_addr_2);
+	sel_val_mask = le32_to_cpu(rdmux2_hdr->select_value_mask);
+	read_addr = le32_to_cpu(rdmux2_hdr->read_addr);
+
+	for (i = 0; i < rdmux2_hdr->op_count; i++) {
+		ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val1);
+		t_sel_val = sel_val1 & sel_val_mask;
+		*data_ptr++ = cpu_to_le32(t_sel_val);
+
+		ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
+		ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
+
+		*data_ptr++ = cpu_to_le32(data);
+
+		ha->isp_ops->wr_reg_indirect(ha, sel_addr1, sel_val2);
+		t_sel_val = sel_val2 & sel_val_mask;
+		*data_ptr++ = cpu_to_le32(t_sel_val);
+
+		ha->isp_ops->wr_reg_indirect(ha, sel_addr2, t_sel_val);
+		ha->isp_ops->rd_reg_indirect(ha, read_addr, &data);
+
+		*data_ptr++ = cpu_to_le32(data);
+
+		sel_val1 += rdmux2_hdr->select_value_stride;
+		sel_val2 += rdmux2_hdr->select_value_stride;
+	}
+
+	*d_ptr = data_ptr;
+}
+
+static uint32_t qla83xx_minidump_process_pollrdmwr(struct scsi_qla_host *ha,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
+				uint32_t **d_ptr)
+{
+	uint32_t poll_wait, poll_mask, r_value, data;
+	uint32_t addr_1, addr_2, value_1, value_2;
+	uint32_t *data_ptr = *d_ptr;
+	uint32_t rval = QLA_SUCCESS;
+	struct qla83xx_minidump_entry_pollrdmwr *poll_hdr;
+
+	poll_hdr = (struct qla83xx_minidump_entry_pollrdmwr *)entry_hdr;
+	addr_1 = le32_to_cpu(poll_hdr->addr_1);
+	addr_2 = le32_to_cpu(poll_hdr->addr_2);
+	value_1 = le32_to_cpu(poll_hdr->value_1);
+	value_2 = le32_to_cpu(poll_hdr->value_2);
+	poll_mask = le32_to_cpu(poll_hdr->poll_mask);
+
+	ha->isp_ops->wr_reg_indirect(ha, addr_1, value_1);
+
+	poll_wait = le32_to_cpu(poll_hdr->poll_wait);
+	while (1) {
+		ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
+
+		if ((r_value & poll_mask) != 0) {
+			break;
+		} else {
+			msleep(1);
+			if (--poll_wait == 0) {
+				ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_1\n",
+					   __func__);
+				rval = QLA_ERROR;
+				goto exit_process_pollrdmwr;
+			}
+		}
+	}
+
+	ha->isp_ops->rd_reg_indirect(ha, addr_2, &data);
+	data &= le32_to_cpu(poll_hdr->modify_mask);
+	ha->isp_ops->wr_reg_indirect(ha, addr_2, data);
+	ha->isp_ops->wr_reg_indirect(ha, addr_1, value_2);
+
+	poll_wait = le32_to_cpu(poll_hdr->poll_wait);
+	while (1) {
+		ha->isp_ops->rd_reg_indirect(ha, addr_1, &r_value);
+
+		if ((r_value & poll_mask) != 0) {
+			break;
+		} else {
+			msleep(1);
+			if (--poll_wait == 0) {
+				ql4_printk(KERN_ERR, ha, "%s: TIMEOUT_2\n",
+					   __func__);
+				rval = QLA_ERROR;
+				goto exit_process_pollrdmwr;
+			}
+		}
+	}
+
+	*data_ptr++ = cpu_to_le32(addr_2);
+	*data_ptr++ = cpu_to_le32(data);
+	*d_ptr = data_ptr;
+
+exit_process_pollrdmwr:
+	return rval;
+}
+
+static uint32_t qla4_83xx_minidump_process_rdrom(struct scsi_qla_host *ha,
+				struct qla8xxx_minidump_entry_hdr *entry_hdr,
+				uint32_t **d_ptr)
+{
+	uint32_t fl_addr, u32_count, rval;
+	struct qla8xxx_minidump_entry_rdrom *rom_hdr;
+	uint32_t *data_ptr = *d_ptr;
+
+	rom_hdr = (struct qla8xxx_minidump_entry_rdrom *)entry_hdr;
+	fl_addr = le32_to_cpu(rom_hdr->read_addr);
+	u32_count = le32_to_cpu(rom_hdr->read_data_size)/sizeof(uint32_t);
+
+	DEBUG2(ql4_printk(KERN_INFO, ha, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
+			  __func__, fl_addr, u32_count));
+
+	rval = qla4_83xx_lockless_flash_read_u32(ha, fl_addr,
+						 (u8 *)(data_ptr), u32_count);
+
+	if (rval == QLA_ERROR) {
+		ql4_printk(KERN_ERR, ha, "%s: Flash Read Error,Count=%d\n",
+			   __func__, u32_count);
+		goto exit_process_rdrom;
+	}
+
+	data_ptr += u32_count;
+	*d_ptr = data_ptr;
+
+exit_process_rdrom:
+	return rval;
+}
+
 /**
- * qla82xx_collect_md_data - Retrieve firmware minidump data.
+ * qla4_8xxx_collect_md_data - Retrieve firmware minidump data.
  * @ha: pointer to adapter structure
  **/
 static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
 {
 	int num_entry_hdr = 0;
-	struct qla82xx_minidump_entry_hdr *entry_hdr;
+	struct qla8xxx_minidump_entry_hdr *entry_hdr;
 	struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
 	uint32_t *data_ptr;
 	uint32_t data_collected = 0;
@@ -2130,10 +2394,14 @@ static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
 	timestamp = (u32)(jiffies_to_msecs(now) / 1000);
 	tmplt_hdr->driver_timestamp = timestamp;
 
-	entry_hdr = (struct qla82xx_minidump_entry_hdr *)
+	entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
 					(((uint8_t *)ha->fw_dump_tmplt_hdr) +
 					 tmplt_hdr->first_entry_offset);
 
+	if (is_qla8032(ha))
+		tmplt_hdr->saved_state_array[QLA83XX_SS_OCM_WNDREG_INDEX] =
+					tmplt_hdr->ocm_window_reg[ha->func_num];
+
 	/* Walk through the entry headers - validate/perform required action */
 	for (i = 0; i < num_entry_hdr; i++) {
 		if (data_collected >= ha->fw_dump_size) {
@@ -2146,7 +2414,7 @@ static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
 		if (!(entry_hdr->d_ctrl.entry_capture_mask &
 		      ha->fw_dump_capture_mask)) {
 			entry_hdr->d_ctrl.driver_flags |=
-						QLA82XX_DBG_SKIPPED_FLAG;
+						QLA8XXX_DBG_SKIPPED_FLAG;
 			goto skip_nxt_entry;
 		}
 
@@ -2159,65 +2427,105 @@ static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
 		 * debug data
 		 */
 		switch (entry_hdr->entry_type) {
-		case QLA82XX_RDEND:
-			ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+		case QLA8XXX_RDEND:
+			qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
 			break;
-		case QLA82XX_CNTRL:
+		case QLA8XXX_CNTRL:
 			rval = qla4_8xxx_minidump_process_control(ha,
 								  entry_hdr);
 			if (rval != QLA_SUCCESS) {
-				ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
 				goto md_failed;
 			}
 			break;
-		case QLA82XX_RDCRB:
+		case QLA8XXX_RDCRB:
 			qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
 							 &data_ptr);
 			break;
-		case QLA82XX_RDMEM:
+		case QLA8XXX_RDMEM:
 			rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
 								&data_ptr);
 			if (rval != QLA_SUCCESS) {
-				ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
 				goto md_failed;
 			}
 			break;
-		case QLA82XX_BOARD:
-		case QLA82XX_RDROM:
-			qla4_8xxx_minidump_process_rdrom(ha, entry_hdr,
-							 &data_ptr);
+		case QLA8XXX_BOARD:
+		case QLA8XXX_RDROM:
+			if (is_qla8022(ha)) {
+				qla4_82xx_minidump_process_rdrom(ha, entry_hdr,
+								 &data_ptr);
+			} else if (is_qla8032(ha)) {
+				rval = qla4_83xx_minidump_process_rdrom(ha,
+								    entry_hdr,
+								    &data_ptr);
+				if (rval != QLA_SUCCESS)
+					qla4_8xxx_mark_entry_skipped(ha,
+								     entry_hdr,
+								     i);
+			}
 			break;
-		case QLA82XX_L2DTG:
-		case QLA82XX_L2ITG:
-		case QLA82XX_L2DAT:
-		case QLA82XX_L2INS:
+		case QLA8XXX_L2DTG:
+		case QLA8XXX_L2ITG:
+		case QLA8XXX_L2DAT:
+		case QLA8XXX_L2INS:
 			rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
 								&data_ptr);
 			if (rval != QLA_SUCCESS) {
-				ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
 				goto md_failed;
 			}
 			break;
-		case QLA82XX_L1DAT:
-		case QLA82XX_L1INS:
+		case QLA8XXX_L1DTG:
+		case QLA8XXX_L1ITG:
+		case QLA8XXX_L1DAT:
+		case QLA8XXX_L1INS:
 			qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
 							   &data_ptr);
 			break;
-		case QLA82XX_RDOCM:
+		case QLA8XXX_RDOCM:
 			qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
 							 &data_ptr);
 			break;
-		case QLA82XX_RDMUX:
+		case QLA8XXX_RDMUX:
 			qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
 							 &data_ptr);
 			break;
-		case QLA82XX_QUEUE:
+		case QLA8XXX_QUEUE:
 			qla4_8xxx_minidump_process_queue(ha, entry_hdr,
 							 &data_ptr);
 			break;
-		case QLA82XX_RDNOP:
+		case QLA83XX_POLLRD:
+			if (!is_qla8032(ha)) {
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+				break;
+			}
+			rval = qla83xx_minidump_process_pollrd(ha, entry_hdr,
+							       &data_ptr);
+			if (rval != QLA_SUCCESS)
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+			break;
+		case QLA83XX_RDMUX2:
+			if (!is_qla8032(ha)) {
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+				break;
+			}
+			qla83xx_minidump_process_rdmux2(ha, entry_hdr,
+							&data_ptr);
+			break;
+		case QLA83XX_POLLRDMWR:
+			if (!is_qla8032(ha)) {
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+				break;
+			}
+			rval = qla83xx_minidump_process_pollrdmwr(ha, entry_hdr,
+								  &data_ptr);
+			if (rval != QLA_SUCCESS)
+				qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+			break;
+		case QLA8XXX_RDNOP:
 		default:
-			ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
+			qla4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
 			break;
 		}
 
@@ -2226,7 +2534,7 @@ static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
 						ha->fw_dump_tmplt_size));
 skip_nxt_entry:
 		/*  next entry in the template */
-		entry_hdr = (struct qla82xx_minidump_entry_hdr *)
+		entry_hdr = (struct qla8xxx_minidump_entry_hdr *)
 				(((uint8_t *)entry_hdr) +
 				 entry_hdr->entry_size);
 	}
@@ -2266,33 +2574,45 @@ static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
 	kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
 }
 
+void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
+{
+	if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
+	    !test_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
+		if (!qla4_8xxx_collect_md_data(ha)) {
+			qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
+			set_bit(AF_82XX_FW_DUMPED, &ha->flags);
+		} else {
+			ql4_printk(KERN_INFO, ha, "%s: Unable to collect minidump\n",
+				   __func__);
+		}
+	}
+}
+
 /**
  * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
  * @ha: pointer to adapter structure
  *
  * Note: IDC lock must be held upon entry
  **/
-static int
-qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
+int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
 {
 	int rval = QLA_ERROR;
 	int i, timeout;
-	uint32_t old_count, count;
+	uint32_t old_count, count, idc_ctrl;
 	int need_reset = 0, peg_stuck = 1;
 
-	need_reset = qla4_8xxx_need_reset(ha);
-
-	old_count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
+	need_reset = ha->isp_ops->need_reset(ha);
+	old_count = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
 
 	for (i = 0; i < 10; i++) {
 		timeout = msleep_interruptible(200);
 		if (timeout) {
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			   QLA82XX_DEV_FAILED);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_FAILED);
 			return rval;
 		}
 
-		count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
+		count = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER);
 		if (count != old_count)
 			peg_stuck = 0;
 	}
@@ -2300,13 +2620,13 @@ qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
 	if (need_reset) {
 		/* We are trying to perform a recovery here. */
 		if (peg_stuck)
-			qla4_8xxx_rom_lock_recovery(ha);
+			ha->isp_ops->rom_lock_recovery(ha);
 		goto dev_initialize;
 	} else  {
 		/* Start of day for this ha context. */
 		if (peg_stuck) {
 			/* Either we are the first or recovery in progress. */
-			qla4_8xxx_rom_lock_recovery(ha);
+			ha->isp_ops->rom_lock_recovery(ha);
 			goto dev_initialize;
 		} else {
 			/* Firmware already running. */
@@ -2318,46 +2638,53 @@ qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
 dev_initialize:
 	/* set to DEV_INITIALIZING */
 	ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+			    QLA8XXX_DEV_INITIALIZING);
 
-	/* Driver that sets device state to initializating sets IDC version */
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
-
-	qla4_8xxx_idc_unlock(ha);
-	if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
-	    !test_and_set_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
-		if (!qla4_8xxx_collect_md_data(ha)) {
-			qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
-		} else {
-			ql4_printk(KERN_INFO, ha, "Unable to collect minidump\n");
-			clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
+	/*
+	 * For ISP8324, if IDC_CTRL GRACEFUL_RESET_BIT1 is set, reset it after
+	 * device goes to INIT state.
+	 */
+	if (is_qla8032(ha)) {
+		idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL);
+		if (idc_ctrl & GRACEFUL_RESET_BIT1) {
+			qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL,
+					 (idc_ctrl & ~GRACEFUL_RESET_BIT1));
+			set_bit(AF_83XX_NO_FW_DUMP, &ha->flags);
 		}
 	}
-	rval = qla4_8xxx_try_start_fw(ha);
-	qla4_8xxx_idc_lock(ha);
+
+	ha->isp_ops->idc_unlock(ha);
+
+	if (is_qla8022(ha))
+		qla4_8xxx_get_minidump(ha);
+
+	rval = ha->isp_ops->restart_firmware(ha);
+	ha->isp_ops->idc_lock(ha);
 
 	if (rval != QLA_SUCCESS) {
 		ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
 		qla4_8xxx_clear_drv_active(ha);
-		qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
+		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+				    QLA8XXX_DEV_FAILED);
 		return rval;
 	}
 
 dev_ready:
 	ql4_printk(KERN_INFO, ha, "HW State: READY\n");
-	qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
+	qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
 
 	return rval;
 }
 
 /**
- * qla4_8xxx_need_reset_handler - Code to start reset sequence
+ * qla4_82xx_need_reset_handler - Code to start reset sequence
  * @ha: pointer to adapter structure
  *
  * Note: IDC lock must be held upon entry
  **/
 static void
-qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
+qla4_82xx_need_reset_handler(struct scsi_qla_host *ha)
 {
 	uint32_t dev_state, drv_state, drv_active;
 	uint32_t active_mask = 0xFFFFFFFF;
@@ -2367,12 +2694,12 @@ qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
 		"Performing ISP error recovery\n");
 
 	if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
-		qla4_8xxx_idc_unlock(ha);
+		qla4_82xx_idc_unlock(ha);
 		ha->isp_ops->disable_intrs(ha);
-		qla4_8xxx_idc_lock(ha);
+		qla4_82xx_idc_lock(ha);
 	}
 
-	if (!test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
+	if (!test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
 		DEBUG2(ql4_printk(KERN_INFO, ha,
 				  "%s(%ld): reset acknowledged\n",
 				  __func__, ha->host_no));
@@ -2384,8 +2711,8 @@ qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
 	/* wait for 10 seconds for reset ack from all functions */
 	reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
 
-	drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
-	drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
+	drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
+	drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
 
 	ql4_printk(KERN_INFO, ha,
 		"%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
@@ -2403,31 +2730,31 @@ qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
 		 * When reset_owner times out, check which functions
 		 * acked/did not ack
 		 */
-		if (test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
+		if (test_bit(AF_8XXX_RST_OWNER, &ha->flags)) {
 			ql4_printk(KERN_INFO, ha,
 				   "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
 				   __func__, ha->host_no, drv_state,
 				   drv_active);
 		}
-		qla4_8xxx_idc_unlock(ha);
+		qla4_82xx_idc_unlock(ha);
 		msleep(1000);
-		qla4_8xxx_idc_lock(ha);
+		qla4_82xx_idc_lock(ha);
 
-		drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
-		drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
+		drv_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
+		drv_active = qla4_82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
 	}
 
 	/* Clear RESET OWNER as we are not going to use it any further */
-	clear_bit(AF_82XX_RST_OWNER, &ha->flags);
+	clear_bit(AF_8XXX_RST_OWNER, &ha->flags);
 
-	dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+	dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
 		   dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
 
 	/* Force to DEV_COLD unless someone else is starting a reset */
-	if (dev_state != QLA82XX_DEV_INITIALIZING) {
+	if (dev_state != QLA8XXX_DEV_INITIALIZING) {
 		ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
-		qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
+		qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
 		qla4_8xxx_set_rst_ready(ha);
 	}
 }
@@ -2439,9 +2766,104 @@ qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
 void
 qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
 {
-	qla4_8xxx_idc_lock(ha);
+	ha->isp_ops->idc_lock(ha);
 	qla4_8xxx_set_qsnt_ready(ha);
-	qla4_8xxx_idc_unlock(ha);
+	ha->isp_ops->idc_unlock(ha);
+}
+
+static void qla4_82xx_set_idc_ver(struct scsi_qla_host *ha)
+{
+	int idc_ver;
+	uint32_t drv_active;
+
+	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+	if (drv_active == (1 << (ha->func_num * 4))) {
+		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION,
+				    QLA82XX_IDC_VERSION);
+		ql4_printk(KERN_INFO, ha,
+			   "%s: IDC version updated to %d\n", __func__,
+			   QLA82XX_IDC_VERSION);
+	} else {
+		idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
+		if (QLA82XX_IDC_VERSION != idc_ver) {
+			ql4_printk(KERN_INFO, ha,
+				   "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
+				   __func__, QLA82XX_IDC_VERSION, idc_ver);
+		}
+	}
+}
+
+static int qla4_83xx_set_idc_ver(struct scsi_qla_host *ha)
+{
+	int idc_ver;
+	uint32_t drv_active;
+	int rval = QLA_SUCCESS;
+
+	drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+	if (drv_active == (1 << ha->func_num)) {
+		idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
+		idc_ver &= (~0xFF);
+		idc_ver |= QLA83XX_IDC_VER_MAJ_VALUE;
+		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION, idc_ver);
+		ql4_printk(KERN_INFO, ha,
+			   "%s: IDC version updated to %d\n", __func__,
+			   idc_ver);
+	} else {
+		idc_ver = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_IDC_VERSION);
+		idc_ver &= 0xFF;
+		if (QLA83XX_IDC_VER_MAJ_VALUE != idc_ver) {
+			ql4_printk(KERN_INFO, ha,
+				   "%s: qla4xxx driver IDC version %d is not compatible with IDC version %d of other drivers!\n",
+				   __func__, QLA83XX_IDC_VER_MAJ_VALUE,
+				   idc_ver);
+			rval = QLA_ERROR;
+			goto exit_set_idc_ver;
+		}
+	}
+
+	/* Update IDC_MINOR_VERSION */
+	idc_ver = qla4_83xx_rd_reg(ha, QLA83XX_CRB_IDC_VER_MINOR);
+	idc_ver &= ~(0x03 << (ha->func_num * 2));
+	idc_ver |= (QLA83XX_IDC_VER_MIN_VALUE << (ha->func_num * 2));
+	qla4_83xx_wr_reg(ha, QLA83XX_CRB_IDC_VER_MINOR, idc_ver);
+
+exit_set_idc_ver:
+	return rval;
+}
+
+int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha)
+{
+	uint32_t drv_active;
+	int rval = QLA_SUCCESS;
+
+	if (test_bit(AF_INIT_DONE, &ha->flags))
+		goto exit_update_idc_reg;
+
+	ha->isp_ops->idc_lock(ha);
+	qla4_8xxx_set_drv_active(ha);
+
+	/*
+	 * If we are the first driver to load and
+	 * ql4xdontresethba is not set, clear IDC_CTRL BIT0.
+	 */
+	if (is_qla8032(ha)) {
+		drv_active = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DRV_ACTIVE);
+		if ((drv_active == (1 << ha->func_num)) && !ql4xdontresethba)
+			qla4_83xx_clear_idc_dontreset(ha);
+	}
+
+	if (is_qla8022(ha)) {
+		qla4_82xx_set_idc_ver(ha);
+	} else if (is_qla8032(ha)) {
+		rval = qla4_83xx_set_idc_ver(ha);
+		if (rval == QLA_ERROR)
+			qla4_8xxx_clear_drv_active(ha);
+	}
+
+	ha->isp_ops->idc_unlock(ha);
+
+exit_update_idc_reg:
+	return rval;
 }
 
 /**
@@ -2456,13 +2878,11 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 	int rval = QLA_SUCCESS;
 	unsigned long dev_init_timeout;
 
-	if (!test_bit(AF_INIT_DONE, &ha->flags)) {
-		qla4_8xxx_idc_lock(ha);
-		qla4_8xxx_set_drv_active(ha);
-		qla4_8xxx_idc_unlock(ha);
-	}
+	rval = qla4_8xxx_update_idc_reg(ha);
+	if (rval == QLA_ERROR)
+		goto exit_state_handler;
 
-	dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+	dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
 	DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
 			  dev_state, dev_state < MAX_STATES ?
 			  qdev_state[dev_state] : "Unknown"));
@@ -2470,7 +2890,7 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 	/* wait for 30 seconds for device to go ready */
 	dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
 
-	qla4_8xxx_idc_lock(ha);
+	ha->isp_ops->idc_lock(ha);
 	while (1) {
 
 		if (time_after_eq(jiffies, dev_init_timeout)) {
@@ -2479,65 +2899,75 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 				   DRIVER_NAME,
 				   dev_state, dev_state < MAX_STATES ?
 				   qdev_state[dev_state] : "Unknown");
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-				QLA82XX_DEV_FAILED);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_FAILED);
 		}
 
-		dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+		dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
 		ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
 			   dev_state, dev_state < MAX_STATES ?
 			   qdev_state[dev_state] : "Unknown");
 
 		/* NOTE: Make sure idc unlocked upon exit of switch statement */
 		switch (dev_state) {
-		case QLA82XX_DEV_READY:
+		case QLA8XXX_DEV_READY:
 			goto exit;
-		case QLA82XX_DEV_COLD:
+		case QLA8XXX_DEV_COLD:
 			rval = qla4_8xxx_device_bootstrap(ha);
 			goto exit;
-		case QLA82XX_DEV_INITIALIZING:
-			qla4_8xxx_idc_unlock(ha);
+		case QLA8XXX_DEV_INITIALIZING:
+			ha->isp_ops->idc_unlock(ha);
 			msleep(1000);
-			qla4_8xxx_idc_lock(ha);
+			ha->isp_ops->idc_lock(ha);
 			break;
-		case QLA82XX_DEV_NEED_RESET:
-			if (!ql4xdontresethba) {
-				qla4_8xxx_need_reset_handler(ha);
-				/* Update timeout value after need
-				 * reset handler */
-				dev_init_timeout = jiffies +
-					(ha->nx_dev_init_timeout * HZ);
-			} else {
-				qla4_8xxx_idc_unlock(ha);
-				msleep(1000);
-				qla4_8xxx_idc_lock(ha);
+		case QLA8XXX_DEV_NEED_RESET:
+			/*
+			 * For ISP8324, if NEED_RESET is set by any driver,
+			 * it should be honored, irrespective of IDC_CTRL
+			 * DONTRESET_BIT0
+			 */
+			if (is_qla8032(ha)) {
+				qla4_83xx_need_reset_handler(ha);
+			} else if (is_qla8022(ha)) {
+				if (!ql4xdontresethba) {
+					qla4_82xx_need_reset_handler(ha);
+					/* Update timeout value after need
+					 * reset handler */
+					dev_init_timeout = jiffies +
+						(ha->nx_dev_init_timeout * HZ);
+				} else {
+					ha->isp_ops->idc_unlock(ha);
+					msleep(1000);
+					ha->isp_ops->idc_lock(ha);
+				}
 			}
 			break;
-		case QLA82XX_DEV_NEED_QUIESCENT:
+		case QLA8XXX_DEV_NEED_QUIESCENT:
 			/* idc locked/unlocked in handler */
 			qla4_8xxx_need_qsnt_handler(ha);
 			break;
-		case QLA82XX_DEV_QUIESCENT:
-			qla4_8xxx_idc_unlock(ha);
+		case QLA8XXX_DEV_QUIESCENT:
+			ha->isp_ops->idc_unlock(ha);
 			msleep(1000);
-			qla4_8xxx_idc_lock(ha);
+			ha->isp_ops->idc_lock(ha);
 			break;
-		case QLA82XX_DEV_FAILED:
-			qla4_8xxx_idc_unlock(ha);
+		case QLA8XXX_DEV_FAILED:
+			ha->isp_ops->idc_unlock(ha);
 			qla4xxx_dead_adapter_cleanup(ha);
 			rval = QLA_ERROR;
-			qla4_8xxx_idc_lock(ha);
+			ha->isp_ops->idc_lock(ha);
 			goto exit;
 		default:
-			qla4_8xxx_idc_unlock(ha);
+			ha->isp_ops->idc_unlock(ha);
 			qla4xxx_dead_adapter_cleanup(ha);
 			rval = QLA_ERROR;
-			qla4_8xxx_idc_lock(ha);
+			ha->isp_ops->idc_lock(ha);
 			goto exit;
 		}
 	}
 exit:
-	qla4_8xxx_idc_unlock(ha);
+	ha->isp_ops->idc_unlock(ha);
+exit_state_handler:
 	return rval;
 }
 
@@ -2546,8 +2976,13 @@ int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
 	int retval;
 
 	/* clear the interrupt */
-	writel(0, &ha->qla4_8xxx_reg->host_int);
-	readl(&ha->qla4_8xxx_reg->host_int);
+	if (is_qla8032(ha)) {
+		writel(0, &ha->qla4_83xx_reg->risc_intr);
+		readl(&ha->qla4_83xx_reg->risc_intr);
+	} else if (is_qla8022(ha)) {
+		writel(0, &ha->qla4_82xx_reg->host_int);
+		readl(&ha->qla4_82xx_reg->host_int);
+	}
 
 	retval = qla4_8xxx_device_state_handler(ha);
 
@@ -2581,13 +3016,13 @@ flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
 }
 
 static uint32_t *
-qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
+qla4_82xx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
     uint32_t faddr, uint32_t length)
 {
 	uint32_t i;
 	uint32_t val;
 	int loops = 0;
-	while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
+	while ((qla4_82xx_rom_lock(ha) != 0) && (loops < 50000)) {
 		udelay(100);
 		cond_resched();
 		loops++;
@@ -2599,7 +3034,7 @@ qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
 
 	/* Dword reads to flash. */
 	for (i = 0; i < length/4; i++, faddr += 4) {
-		if (qla4_8xxx_do_rom_fast_read(ha, faddr, &val)) {
+		if (qla4_82xx_do_rom_fast_read(ha, faddr, &val)) {
 			ql4_printk(KERN_WARNING, ha,
 			    "Do ROM fast read failed\n");
 			goto done_read;
@@ -2608,7 +3043,7 @@ qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
 	}
 
 done_read:
-	qla4_8xxx_rom_unlock(ha);
+	qla4_82xx_rom_unlock(ha);
 	return dwptr;
 }
 
@@ -2616,10 +3051,10 @@ done_read:
  * Address and length are byte address
  **/
 static uint8_t *
-qla4_8xxx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
+qla4_82xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
 		uint32_t offset, uint32_t length)
 {
-	qla4_8xxx_read_flash_data(ha, (uint32_t *)buf, offset, length);
+	qla4_82xx_read_flash_data(ha, (uint32_t *)buf, offset, length);
 	return buf;
 }
 
@@ -2646,7 +3081,7 @@ qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
 	const char *loc, *locations[] = { "DEF", "FLT" };
 	uint16_t *wptr;
 	uint16_t cnt, chksum;
-	uint32_t start;
+	uint32_t start, status;
 	struct qla_flt_header *flt;
 	struct qla_flt_region *region;
 	struct ql82xx_hw_data *hw = &ha->hw;
@@ -2655,8 +3090,18 @@ qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
 	wptr = (uint16_t *)ha->request_ring;
 	flt = (struct qla_flt_header *)ha->request_ring;
 	region = (struct qla_flt_region *)&flt[1];
-	qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
-			flt_addr << 2, OPTROM_BURST_SIZE);
+
+	if (is_qla8022(ha)) {
+		qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
+					   flt_addr << 2, OPTROM_BURST_SIZE);
+	} else if (is_qla8032(ha)) {
+		status = qla4_83xx_flash_read_u32(ha, flt_addr << 2,
+						  (uint8_t *)ha->request_ring,
+						  0x400);
+		if (status != QLA_SUCCESS)
+			goto no_flash_data;
+	}
+
 	if (*wptr == __constant_cpu_to_le16(0xffff))
 		goto no_flash_data;
 	if (flt->version != __constant_cpu_to_le16(1)) {
@@ -2732,7 +3177,7 @@ done:
 }
 
 static void
-qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha)
+qla4_82xx_get_fdt_info(struct scsi_qla_host *ha)
 {
 #define FLASH_BLK_SIZE_4K       0x1000
 #define FLASH_BLK_SIZE_32K      0x8000
@@ -2750,7 +3195,7 @@ qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha)
 
 	wptr = (uint16_t *)ha->request_ring;
 	fdt = (struct qla_fdt_layout *)ha->request_ring;
-	qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
+	qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
 	    hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
 
 	if (*wptr == __constant_cpu_to_le16(0xffff))
@@ -2799,7 +3244,7 @@ done:
 }
 
 static void
-qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
+qla4_82xx_get_idc_param(struct scsi_qla_host *ha)
 {
 #define QLA82XX_IDC_PARAM_ADDR      0x003e885c
 	uint32_t *wptr;
@@ -2807,7 +3252,7 @@ qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
 	if (!is_qla8022(ha))
 		return;
 	wptr = (uint32_t *)ha->request_ring;
-	qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
+	qla4_82xx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
 			QLA82XX_IDC_PARAM_ADDR , 8);
 
 	if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
@@ -2825,6 +3270,39 @@ qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
 	return;
 }
 
+void qla4_82xx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
+			      int in_count)
+{
+	int i;
+
+	/* Load all mailbox registers, except mailbox 0. */
+	for (i = 1; i < in_count; i++)
+		writel(mbx_cmd[i], &ha->qla4_82xx_reg->mailbox_in[i]);
+
+	/* Wakeup firmware  */
+	writel(mbx_cmd[0], &ha->qla4_82xx_reg->mailbox_in[0]);
+	readl(&ha->qla4_82xx_reg->mailbox_in[0]);
+	writel(HINT_MBX_INT_PENDING, &ha->qla4_82xx_reg->hint);
+	readl(&ha->qla4_82xx_reg->hint);
+}
+
+void qla4_82xx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
+{
+	int intr_status;
+
+	intr_status = readl(&ha->qla4_82xx_reg->host_int);
+	if (intr_status & ISRX_82XX_RISC_INT) {
+		ha->mbox_status_count = out_count;
+		intr_status = readl(&ha->qla4_82xx_reg->host_status);
+		ha->isp_ops->interrupt_service_routine(ha, intr_status);
+
+		if (test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
+		    test_bit(AF_INTx_ENABLED, &ha->flags))
+			qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg,
+					0xfbff);
+	}
+}
+
 int
 qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
 {
@@ -2836,8 +3314,12 @@ qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
 		return ret;
 
 	qla4_8xxx_get_flt_info(ha, flt_addr);
-	qla4_8xxx_get_fdt_info(ha);
-	qla4_8xxx_get_idc_param(ha);
+	if (is_qla8022(ha)) {
+		qla4_82xx_get_fdt_info(ha);
+		qla4_82xx_get_idc_param(ha);
+	} else if (is_qla8032(ha)) {
+		qla4_83xx_get_idc_param(ha);
+	}
 
 	return QLA_SUCCESS;
 }
@@ -2871,36 +3353,36 @@ qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
 }
 
 /**
- * qla4_8xxx_isp_reset - Resets ISP and aborts all outstanding commands.
+ * qla4_82xx_isp_reset - Resets ISP and aborts all outstanding commands.
  * @ha: pointer to host adapter structure.
  **/
 int
-qla4_8xxx_isp_reset(struct scsi_qla_host *ha)
+qla4_82xx_isp_reset(struct scsi_qla_host *ha)
 {
 	int rval;
 	uint32_t dev_state;
 
-	qla4_8xxx_idc_lock(ha);
-	dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+	qla4_82xx_idc_lock(ha);
+	dev_state = qla4_82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 
-	if (dev_state == QLA82XX_DEV_READY) {
+	if (dev_state == QLA8XXX_DEV_READY) {
 		ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
-		qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-		    QLA82XX_DEV_NEED_RESET);
-		set_bit(AF_82XX_RST_OWNER, &ha->flags);
+		qla4_82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
+		    QLA8XXX_DEV_NEED_RESET);
+		set_bit(AF_8XXX_RST_OWNER, &ha->flags);
 	} else
 		ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
 
-	qla4_8xxx_idc_unlock(ha);
+	qla4_82xx_idc_unlock(ha);
 
 	rval = qla4_8xxx_device_state_handler(ha);
 
-	qla4_8xxx_idc_lock(ha);
+	qla4_82xx_idc_lock(ha);
 	qla4_8xxx_clear_rst_ready(ha);
-	qla4_8xxx_idc_unlock(ha);
+	qla4_82xx_idc_unlock(ha);
 
 	if (rval == QLA_SUCCESS) {
-		ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_8xxx_isp_reset\n");
+		ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_82xx_isp_reset\n");
 		clear_bit(AF_FW_RECOVERY, &ha->flags);
 	}
 
@@ -2981,8 +3463,7 @@ exit_validate_mac82:
 
 /* Interrupt handling helpers. */
 
-static int
-qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
+int qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
 {
 	uint32_t mbox_cmd[MBOX_REG_COUNT];
 	uint32_t mbox_sts[MBOX_REG_COUNT];
@@ -3003,8 +3484,7 @@ qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
 	return QLA_SUCCESS;
 }
 
-static int
-qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
+int qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
 {
 	uint32_t mbox_cmd[MBOX_REG_COUNT];
 	uint32_t mbox_sts[MBOX_REG_COUNT];
@@ -3027,26 +3507,26 @@ qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
 }
 
 void
-qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
+qla4_82xx_enable_intrs(struct scsi_qla_host *ha)
 {
 	qla4_8xxx_mbx_intr_enable(ha);
 
 	spin_lock_irq(&ha->hardware_lock);
 	/* BIT 10 - reset */
-	qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
+	qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
 	spin_unlock_irq(&ha->hardware_lock);
 	set_bit(AF_INTERRUPTS_ON, &ha->flags);
 }
 
 void
-qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
+qla4_82xx_disable_intrs(struct scsi_qla_host *ha)
 {
 	if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
 		qla4_8xxx_mbx_intr_disable(ha);
 
 	spin_lock_irq(&ha->hardware_lock);
 	/* BIT 10 - set */
-	qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
+	qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
 	spin_unlock_irq(&ha->hardware_lock);
 }
 
diff --git a/drivers/scsi/qla4xxx/ql4_nx.h b/drivers/scsi/qla4xxx/ql4_nx.h
index 30258479f10..9dc0bbfe50d 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.h
+++ b/drivers/scsi/qla4xxx/ql4_nx.h
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -25,6 +25,8 @@
 #define CRB_RCVPEG_STATE		QLA82XX_REG(0x13c)
 #define CRB_DMA_SHIFT			QLA82XX_REG(0xcc)
 #define CRB_TEMP_STATE			QLA82XX_REG(0x1b4)
+#define CRB_CMDPEG_CHECK_RETRY_COUNT	60
+#define CRB_CMDPEG_CHECK_DELAY		500
 
 #define qla82xx_get_temp_val(x)		((x) >> 16)
 #define qla82xx_get_temp_state(x)	((x) & 0xffff)
@@ -490,8 +492,8 @@ enum {
  * Base addresses of major components on-chip.
  * ====================== BASE ADDRESSES ON-CHIP ======================
  */
-#define QLA82XX_ADDR_DDR_NET		(0x0000000000000000ULL)
-#define QLA82XX_ADDR_DDR_NET_MAX	(0x000000000fffffffULL)
+#define QLA8XXX_ADDR_DDR_NET		(0x0000000000000000ULL)
+#define QLA8XXX_ADDR_DDR_NET_MAX	(0x000000000fffffffULL)
 
 /* Imbus address bit used to indicate a host address. This bit is
  * eliminated by the pcie bar and bar select before presentation
@@ -500,14 +502,15 @@ enum {
 #define QLA82XX_P2_ADDR_PCIE	(0x0000000800000000ULL)
 #define QLA82XX_P3_ADDR_PCIE	(0x0000008000000000ULL)
 #define QLA82XX_ADDR_PCIE_MAX	(0x0000000FFFFFFFFFULL)
-#define QLA82XX_ADDR_OCM0	(0x0000000200000000ULL)
-#define QLA82XX_ADDR_OCM0_MAX	(0x00000002000fffffULL)
-#define QLA82XX_ADDR_OCM1	(0x0000000200400000ULL)
-#define QLA82XX_ADDR_OCM1_MAX	(0x00000002004fffffULL)
-#define QLA82XX_ADDR_QDR_NET	(0x0000000300000000ULL)
+#define QLA8XXX_ADDR_OCM0	(0x0000000200000000ULL)
+#define QLA8XXX_ADDR_OCM0_MAX	(0x00000002000fffffULL)
+#define QLA8XXX_ADDR_OCM1	(0x0000000200400000ULL)
+#define QLA8XXX_ADDR_OCM1_MAX	(0x00000002004fffffULL)
+#define QLA8XXX_ADDR_QDR_NET	(0x0000000300000000ULL)
 
 #define QLA82XX_P2_ADDR_QDR_NET_MAX	(0x00000003001fffffULL)
 #define QLA82XX_P3_ADDR_QDR_NET_MAX	(0x0000000303ffffffULL)
+#define QLA8XXX_ADDR_QDR_NET_MAX	(0x0000000307ffffffULL)
 
 #define QLA82XX_PCI_CRBSPACE		(unsigned long)0x06000000
 #define QLA82XX_PCI_DIRECT_CRB		(unsigned long)0x04400000
@@ -517,6 +520,10 @@ enum {
 #define QLA82XX_PCI_QDR_NET		(unsigned long)0x04000000
 #define QLA82XX_PCI_QDR_NET_MAX		(unsigned long)0x043fffff
 
+/*  PCI Windowing for DDR regions.  */
+#define QLA8XXX_ADDR_IN_RANGE(addr, low, high)            \
+	(((addr) <= (high)) && ((addr) >= (low)))
+
 /*
  *   Register offsets for MN
  */
@@ -540,6 +547,11 @@ enum {
 #define MIU_TA_CTL_WRITE	4
 #define MIU_TA_CTL_BUSY		8
 
+#define MIU_TA_CTL_WRITE_ENABLE		(MIU_TA_CTL_WRITE | MIU_TA_CTL_ENABLE)
+#define MIU_TA_CTL_WRITE_START		(MIU_TA_CTL_WRITE | MIU_TA_CTL_ENABLE |\
+					 MIU_TA_CTL_START)
+#define MIU_TA_CTL_START_ENABLE		(MIU_TA_CTL_START | MIU_TA_CTL_ENABLE)
+
 /*CAM RAM */
 # define QLA82XX_CAM_RAM_BASE	(QLA82XX_CRB_CAM + 0x02000)
 # define QLA82XX_CAM_RAM(reg)	(QLA82XX_CAM_RAM_BASE + (reg))
@@ -565,20 +577,53 @@ enum {
 /* Driver Coexistence Defines */
 #define QLA82XX_CRB_DRV_ACTIVE		(QLA82XX_CAM_RAM(0x138))
 #define QLA82XX_CRB_DEV_STATE		(QLA82XX_CAM_RAM(0x140))
-#define QLA82XX_CRB_DEV_PART_INFO	(QLA82XX_CAM_RAM(0x14c))
-#define QLA82XX_CRB_DRV_IDC_VERSION	(QLA82XX_CAM_RAM(0x174))
 #define QLA82XX_CRB_DRV_STATE		(QLA82XX_CAM_RAM(0x144))
 #define QLA82XX_CRB_DRV_SCRATCH		(QLA82XX_CAM_RAM(0x148))
 #define QLA82XX_CRB_DEV_PART_INFO	(QLA82XX_CAM_RAM(0x14c))
+#define QLA82XX_CRB_DRV_IDC_VERSION	(QLA82XX_CAM_RAM(0x174))
+
+enum qla_regs {
+	QLA8XXX_PEG_HALT_STATUS1 = 0,
+	QLA8XXX_PEG_HALT_STATUS2,
+	QLA8XXX_PEG_ALIVE_COUNTER,
+	QLA8XXX_CRB_DRV_ACTIVE,
+	QLA8XXX_CRB_DEV_STATE,
+	QLA8XXX_CRB_DRV_STATE,
+	QLA8XXX_CRB_DRV_SCRATCH,
+	QLA8XXX_CRB_DEV_PART_INFO,
+	QLA8XXX_CRB_DRV_IDC_VERSION,
+	QLA8XXX_FW_VERSION_MAJOR,
+	QLA8XXX_FW_VERSION_MINOR,
+	QLA8XXX_FW_VERSION_SUB,
+	QLA8XXX_CRB_CMDPEG_STATE,
+	QLA8XXX_CRB_TEMP_STATE,
+};
+
+static const uint32_t qla4_82xx_reg_tbl[] = {
+	QLA82XX_PEG_HALT_STATUS1,
+	QLA82XX_PEG_HALT_STATUS2,
+	QLA82XX_PEG_ALIVE_COUNTER,
+	QLA82XX_CRB_DRV_ACTIVE,
+	QLA82XX_CRB_DEV_STATE,
+	QLA82XX_CRB_DRV_STATE,
+	QLA82XX_CRB_DRV_SCRATCH,
+	QLA82XX_CRB_DEV_PART_INFO,
+	QLA82XX_CRB_DRV_IDC_VERSION,
+	QLA82XX_FW_VERSION_MAJOR,
+	QLA82XX_FW_VERSION_MINOR,
+	QLA82XX_FW_VERSION_SUB,
+	CRB_CMDPEG_STATE,
+	CRB_TEMP_STATE,
+};
 
 /* Every driver should use these Device State */
-#define QLA82XX_DEV_COLD		1
-#define QLA82XX_DEV_INITIALIZING	2
-#define QLA82XX_DEV_READY		3
-#define QLA82XX_DEV_NEED_RESET		4
-#define QLA82XX_DEV_NEED_QUIESCENT	5
-#define QLA82XX_DEV_FAILED		6
-#define QLA82XX_DEV_QUIESCENT		7
+#define QLA8XXX_DEV_COLD		1
+#define QLA8XXX_DEV_INITIALIZING	2
+#define QLA8XXX_DEV_READY		3
+#define QLA8XXX_DEV_NEED_RESET		4
+#define QLA8XXX_DEV_NEED_QUIESCENT	5
+#define QLA8XXX_DEV_FAILED		6
+#define QLA8XXX_DEV_QUIESCENT		7
 #define MAX_STATES			8 /* Increment if new state added */
 
 #define QLA82XX_IDC_VERSION		0x1
@@ -795,47 +840,51 @@ struct crb_addr_pair {
 /* Minidump related */
 
 /* Entry Type Defines */
-#define QLA82XX_RDNOP	0
-#define QLA82XX_RDCRB	1
-#define QLA82XX_RDMUX	2
-#define QLA82XX_QUEUE	3
-#define QLA82XX_BOARD	4
-#define QLA82XX_RDOCM	6
-#define QLA82XX_PREGS	7
-#define QLA82XX_L1DTG	8
-#define QLA82XX_L1ITG	9
-#define QLA82XX_L1DAT	11
-#define QLA82XX_L1INS	12
-#define QLA82XX_L2DTG	21
-#define QLA82XX_L2ITG	22
-#define QLA82XX_L2DAT	23
-#define QLA82XX_L2INS	24
-#define QLA82XX_RDROM	71
-#define QLA82XX_RDMEM	72
-#define QLA82XX_CNTRL	98
-#define QLA82XX_RDEND	255
+#define QLA8XXX_RDNOP	0
+#define QLA8XXX_RDCRB	1
+#define QLA8XXX_RDMUX	2
+#define QLA8XXX_QUEUE	3
+#define QLA8XXX_BOARD	4
+#define QLA8XXX_RDOCM	6
+#define QLA8XXX_PREGS	7
+#define QLA8XXX_L1DTG	8
+#define QLA8XXX_L1ITG	9
+#define QLA8XXX_L1DAT	11
+#define QLA8XXX_L1INS	12
+#define QLA8XXX_L2DTG	21
+#define QLA8XXX_L2ITG	22
+#define QLA8XXX_L2DAT	23
+#define QLA8XXX_L2INS	24
+#define QLA83XX_POLLRD	35
+#define QLA83XX_RDMUX2	36
+#define QLA83XX_POLLRDMWR  37
+#define QLA8XXX_RDROM	71
+#define QLA8XXX_RDMEM	72
+#define QLA8XXX_CNTRL	98
+#define QLA83XX_TLHDR	99
+#define QLA8XXX_RDEND	255
 
 /* Opcodes for Control Entries.
  * These Flags are bit fields.
  */
-#define QLA82XX_DBG_OPCODE_WR		0x01
-#define QLA82XX_DBG_OPCODE_RW		0x02
-#define QLA82XX_DBG_OPCODE_AND		0x04
-#define QLA82XX_DBG_OPCODE_OR		0x08
-#define QLA82XX_DBG_OPCODE_POLL		0x10
-#define QLA82XX_DBG_OPCODE_RDSTATE	0x20
-#define QLA82XX_DBG_OPCODE_WRSTATE	0x40
-#define QLA82XX_DBG_OPCODE_MDSTATE	0x80
+#define QLA8XXX_DBG_OPCODE_WR		0x01
+#define QLA8XXX_DBG_OPCODE_RW		0x02
+#define QLA8XXX_DBG_OPCODE_AND		0x04
+#define QLA8XXX_DBG_OPCODE_OR		0x08
+#define QLA8XXX_DBG_OPCODE_POLL		0x10
+#define QLA8XXX_DBG_OPCODE_RDSTATE	0x20
+#define QLA8XXX_DBG_OPCODE_WRSTATE	0x40
+#define QLA8XXX_DBG_OPCODE_MDSTATE	0x80
 
 /* Driver Flags */
-#define QLA82XX_DBG_SKIPPED_FLAG	0x80 /* driver skipped this entry  */
-#define QLA82XX_DBG_SIZE_ERR_FLAG	0x40 /* Entry vs Capture size
+#define QLA8XXX_DBG_SKIPPED_FLAG	0x80 /* driver skipped this entry  */
+#define QLA8XXX_DBG_SIZE_ERR_FLAG	0x40 /* Entry vs Capture size
 					      * mismatch */
 
 /* Driver_code is for driver to write some info about the entry
  * currently not used.
  */
-struct qla82xx_minidump_entry_hdr {
+struct qla8xxx_minidump_entry_hdr {
 	uint32_t entry_type;
 	uint32_t entry_size;
 	uint32_t entry_capture_size;
@@ -848,8 +897,8 @@ struct qla82xx_minidump_entry_hdr {
 };
 
 /*  Read CRB entry header */
-struct qla82xx_minidump_entry_crb {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_crb {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t addr;
 	struct {
 		uint8_t addr_stride;
@@ -871,8 +920,8 @@ struct qla82xx_minidump_entry_crb {
 	uint32_t value_3;
 };
 
-struct qla82xx_minidump_entry_cache {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_cache {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t tag_reg_addr;
 	struct {
 		uint16_t tag_value_stride;
@@ -895,8 +944,8 @@ struct qla82xx_minidump_entry_cache {
 };
 
 /* Read OCM */
-struct qla82xx_minidump_entry_rdocm {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_rdocm {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t rsvd_0;
 	uint32_t rsvd_1;
 	uint32_t data_size;
@@ -908,24 +957,24 @@ struct qla82xx_minidump_entry_rdocm {
 };
 
 /* Read Memory */
-struct qla82xx_minidump_entry_rdmem {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_rdmem {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t rsvd[6];
 	uint32_t read_addr;
 	uint32_t read_data_size;
 };
 
 /* Read ROM */
-struct qla82xx_minidump_entry_rdrom {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_rdrom {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t rsvd[6];
 	uint32_t read_addr;
 	uint32_t read_data_size;
 };
 
 /* Mux entry */
-struct qla82xx_minidump_entry_mux {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_mux {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t select_addr;
 	uint32_t rsvd_0;
 	uint32_t data_size;
@@ -937,8 +986,8 @@ struct qla82xx_minidump_entry_mux {
 };
 
 /* Queue entry */
-struct qla82xx_minidump_entry_queue {
-	struct qla82xx_minidump_entry_hdr h;
+struct qla8xxx_minidump_entry_queue {
+	struct qla8xxx_minidump_entry_hdr h;
 	uint32_t select_addr;
 	struct {
 		uint16_t queue_id_stride;
@@ -956,23 +1005,6 @@ struct qla82xx_minidump_entry_queue {
 	} rd_strd;
 };
 
-#define QLA82XX_MINIDUMP_OCM0_SIZE		(256 * 1024)
-#define QLA82XX_MINIDUMP_L1C_SIZE		(256 * 1024)
-#define QLA82XX_MINIDUMP_L2C_SIZE		1572864
-#define QLA82XX_MINIDUMP_COMMON_STR_SIZE	0
-#define QLA82XX_MINIDUMP_FCOE_STR_SIZE		0
-#define QLA82XX_MINIDUMP_MEM_SIZE		0
-#define QLA82XX_MAX_ENTRY_HDR			4
-
-struct qla82xx_minidump {
-	uint32_t md_ocm0_data[QLA82XX_MINIDUMP_OCM0_SIZE];
-	uint32_t md_l1c_data[QLA82XX_MINIDUMP_L1C_SIZE];
-	uint32_t md_l2c_data[QLA82XX_MINIDUMP_L2C_SIZE];
-	uint32_t md_cs_data[QLA82XX_MINIDUMP_COMMON_STR_SIZE];
-	uint32_t md_fcoes_data[QLA82XX_MINIDUMP_FCOE_STR_SIZE];
-	uint32_t md_mem_data[QLA82XX_MINIDUMP_MEM_SIZE];
-};
-
 #define MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE	0x129
 #define RQST_TMPLT_SIZE				0x0
 #define RQST_TMPLT				0x1
@@ -982,6 +1014,16 @@ struct qla82xx_minidump {
 #define MD_MIU_TEST_AGT_ADDR_LO			0x41000094
 #define MD_MIU_TEST_AGT_ADDR_HI			0x41000098
 
+#define MD_MIU_TEST_AGT_WRDATA_LO		0x410000A0
+#define MD_MIU_TEST_AGT_WRDATA_HI		0x410000A4
+#define MD_MIU_TEST_AGT_WRDATA_ULO		0x410000B0
+#define MD_MIU_TEST_AGT_WRDATA_UHI		0x410000B4
+
+#define MD_MIU_TEST_AGT_RDDATA_LO		0x410000A8
+#define MD_MIU_TEST_AGT_RDDATA_HI		0x410000AC
+#define MD_MIU_TEST_AGT_RDDATA_ULO		0x410000B8
+#define MD_MIU_TEST_AGT_RDDATA_UHI		0x410000BC
+
 static const int MD_MIU_TEST_AGT_RDDATA[] = { 0x410000A8,
 				0x410000AC, 0x410000B8, 0x410000BC };
 #endif
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 9da426628b9..fbc546e893a 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -1,6 +1,6 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
@@ -18,6 +18,7 @@
 #include "ql4_glbl.h"
 #include "ql4_dbg.h"
 #include "ql4_inline.h"
+#include "ql4_83xx.h"
 
 /*
  * Driver version
@@ -160,7 +161,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
 static int qla4xxx_slave_alloc(struct scsi_device *device);
 static int qla4xxx_slave_configure(struct scsi_device *device);
 static void qla4xxx_slave_destroy(struct scsi_device *sdev);
-static umode_t ql4_attr_is_visible(int param_type, int param);
+static umode_t qla4_attr_is_visible(int param_type, int param);
 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth,
 				      int reason);
@@ -203,7 +204,7 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
 				  CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST |
 				  CAP_DATADGST | CAP_LOGIN_OFFLOAD |
 				  CAP_MULTI_R2T,
-	.attr_is_visible	= ql4_attr_is_visible,
+	.attr_is_visible	= qla4_attr_is_visible,
 	.create_session         = qla4xxx_session_create,
 	.destroy_session        = qla4xxx_session_destroy,
 	.start_conn             = qla4xxx_conn_start,
@@ -315,7 +316,7 @@ exit_send_ping:
 	return rval;
 }
 
-static umode_t ql4_attr_is_visible(int param_type, int param)
+static umode_t qla4_attr_is_visible(int param_type, int param)
 {
 	switch (param_type) {
 	case ISCSI_HOST_PARAM:
@@ -803,7 +804,7 @@ static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
 				     iscsi_stats_dma);
 	if (ret != QLA_SUCCESS) {
 		ql4_printk(KERN_ERR, ha,
-			   "Unable to retreive iscsi stats\n");
+			   "Unable to retrieve iscsi stats\n");
 		goto free_stats;
 	}
 
@@ -1366,7 +1367,7 @@ static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
 
 	conn = cls_conn->dd_data;
 	qla_conn = conn->dd_data;
-	dst_addr = &qla_conn->qla_ep->dst_addr;
+	dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
 
 	switch (param) {
 	case ISCSI_PARAM_CONN_PORT:
@@ -2315,8 +2316,17 @@ static void qla4xxx_mem_free(struct scsi_qla_host *ha)
 		if (ha->nx_pcibase)
 			iounmap(
 			    (struct device_reg_82xx __iomem *)ha->nx_pcibase);
-	} else if (ha->reg)
+	} else if (is_qla8032(ha)) {
+		if (ha->nx_pcibase)
+			iounmap(
+			    (struct device_reg_83xx __iomem *)ha->nx_pcibase);
+	} else if (ha->reg) {
 		iounmap(ha->reg);
+	}
+
+	if (ha->reset_tmplt.buff)
+		vfree(ha->reset_tmplt.buff);
+
 	pci_release_regions(ha->pdev);
 }
 
@@ -2420,7 +2430,7 @@ static int qla4_8xxx_check_temp(struct scsi_qla_host *ha)
 	uint32_t temp, temp_state, temp_val;
 	int status = QLA_SUCCESS;
 
-	temp = qla4_8xxx_rd_32(ha, CRB_TEMP_STATE);
+	temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE);
 
 	temp_state = qla82xx_get_temp_state(temp);
 	temp_val = qla82xx_get_temp_val(temp);
@@ -2456,7 +2466,8 @@ static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 	uint32_t fw_heartbeat_counter;
 	int status = QLA_SUCCESS;
 
-	fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
+	fw_heartbeat_counter = qla4_8xxx_rd_direct(ha,
+						   QLA8XXX_PEG_ALIVE_COUNTER);
 	/* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
 	if (fw_heartbeat_counter == 0xffffffff) {
 		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
@@ -2470,28 +2481,7 @@ static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 		/* FW not alive after 2 seconds */
 		if (ha->seconds_since_last_heartbeat == 2) {
 			ha->seconds_since_last_heartbeat = 0;
-
-			ql4_printk(KERN_INFO, ha,
-				   "scsi(%ld): %s, Dumping hw/fw registers:\n "
-				   " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:"
-				   " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:"
-				   " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:"
-				   " 0x%x,\n PEG_NET_4_PC: 0x%x\n",
-				   ha->host_no, __func__,
-				   qla4_8xxx_rd_32(ha,
-						   QLA82XX_PEG_HALT_STATUS1),
-				   qla4_8xxx_rd_32(ha,
-						   QLA82XX_PEG_HALT_STATUS2),
-				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 +
-						   0x3c),
-				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 +
-						   0x3c),
-				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 +
-						   0x3c),
-				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 +
-						   0x3c),
-				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 +
-						   0x3c));
+			qla4_8xxx_dump_peg_reg(ha);
 			status = QLA_ERROR;
 		}
 	} else
@@ -2501,6 +2491,48 @@ static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 	return status;
 }
 
+static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha)
+{
+	uint32_t halt_status;
+	int halt_status_unrecoverable = 0;
+
+	halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1);
+
+	if (is_qla8022(ha)) {
+		ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
+			   __func__);
+		qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
+				CRB_NIU_XG_PAUSE_CTL_P0 |
+				CRB_NIU_XG_PAUSE_CTL_P1);
+
+		if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
+			ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n",
+				   __func__);
+		if (halt_status & HALT_STATUS_UNRECOVERABLE)
+			halt_status_unrecoverable = 1;
+	} else if (is_qla8032(ha)) {
+		if (halt_status & QLA83XX_HALT_STATUS_FW_RESET)
+			ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n",
+				   __func__);
+		else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE)
+			halt_status_unrecoverable = 1;
+	}
+
+	/*
+	 * Since we cannot change dev_state in interrupt context,
+	 * set appropriate DPC flag then wakeup DPC
+	 */
+	if (halt_status_unrecoverable) {
+		set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
+	} else {
+		ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n",
+			   __func__);
+		set_bit(DPC_RESET_HA, &ha->dpc_flags);
+	}
+	qla4xxx_mailbox_premature_completion(ha);
+	qla4xxx_wake_dpc(ha);
+}
+
 /**
  * qla4_8xxx_watchdog - Poll dev state
  * @ha: Pointer to host adapter structure.
@@ -2509,31 +2541,33 @@ static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
  **/
 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
 {
-	uint32_t dev_state, halt_status;
+	uint32_t dev_state;
 
 	/* don't poll if reset is going on */
 	if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
 	    test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
 	    test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
-		dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+		dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
 
 		if (qla4_8xxx_check_temp(ha)) {
-			ql4_printk(KERN_INFO, ha, "disabling pause"
-				   " transmit on port 0 & 1.\n");
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
-					CRB_NIU_XG_PAUSE_CTL_P0 |
-					CRB_NIU_XG_PAUSE_CTL_P1);
+			if (is_qla8022(ha)) {
+				ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n");
+				qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
+						CRB_NIU_XG_PAUSE_CTL_P0 |
+						CRB_NIU_XG_PAUSE_CTL_P1);
+			}
 			set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
 			qla4xxx_wake_dpc(ha);
-		} else if (dev_state == QLA82XX_DEV_NEED_RESET &&
-		    !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
-			if (!ql4xdontresethba) {
+		} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
+			   !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
+			if (is_qla8032(ha) ||
+			    (is_qla8022(ha) && !ql4xdontresethba)) {
 				ql4_printk(KERN_INFO, ha, "%s: HW State: "
 				    "NEED RESET!\n", __func__);
 				set_bit(DPC_RESET_HA, &ha->dpc_flags);
 				qla4xxx_wake_dpc(ha);
 			}
-		} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
+		} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
 		    !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
 			ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n",
 			    __func__);
@@ -2541,36 +2575,8 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
 			qla4xxx_wake_dpc(ha);
 		} else  {
 			/* Check firmware health */
-			if (qla4_8xxx_check_fw_alive(ha)) {
-				ql4_printk(KERN_INFO, ha, "disabling pause"
-					   " transmit on port 0 & 1.\n");
-				qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
-						CRB_NIU_XG_PAUSE_CTL_P0 |
-						CRB_NIU_XG_PAUSE_CTL_P1);
-				halt_status = qla4_8xxx_rd_32(ha,
-						QLA82XX_PEG_HALT_STATUS1);
-
-				if (QLA82XX_FWERROR_CODE(halt_status) == 0x67)
-					ql4_printk(KERN_ERR, ha, "%s:"
-						   " Firmware aborted with"
-						   " error code 0x00006700."
-						   " Device is being reset\n",
-						   __func__);
-
-				/* Since we cannot change dev_state in interrupt
-				 * context, set appropriate DPC flag then wakeup
-				 * DPC */
-				if (halt_status & HALT_STATUS_UNRECOVERABLE)
-					set_bit(DPC_HA_UNRECOVERABLE,
-						&ha->dpc_flags);
-				else {
-					ql4_printk(KERN_INFO, ha, "%s: detect "
-						   "abort needed!\n", __func__);
-					set_bit(DPC_RESET_HA, &ha->dpc_flags);
-				}
-				qla4xxx_mailbox_premature_completion(ha);
-				qla4xxx_wake_dpc(ha);
-			}
+			if (qla4_8xxx_check_fw_alive(ha))
+				qla4_8xxx_process_fw_error(ha);
 		}
 	}
 }
@@ -2652,11 +2658,10 @@ static void qla4xxx_timer(struct scsi_qla_host *ha)
 	if (!pci_channel_offline(ha->pdev))
 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
 
-	if (is_qla8022(ha)) {
+	if (is_qla80XX(ha))
 		qla4_8xxx_watchdog(ha);
-	}
 
-	if (!is_qla8022(ha)) {
+	if (is_qla40XX(ha)) {
 		/* Check for heartbeat interval. */
 		if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
 		    ha->heartbeat_interval != 0) {
@@ -2941,6 +2946,14 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
 
 	set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
 
+	if (is_qla8032(ha) &&
+	    !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
+		ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
+			   __func__);
+		/* disable pause frame for ISP83xx */
+		qla4_83xx_disable_pause(ha);
+	}
+
 	iscsi_host_for_each_session(ha->host, qla4xxx_fail_session);
 
 	if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
@@ -2953,9 +2966,9 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
 		goto recover_ha_init_adapter;
 	}
 
-	/* For the ISP-82xx adapter, issue a stop_firmware if invoked
+	/* For the ISP-8xxx adapter, issue a stop_firmware if invoked
 	 * from eh_host_reset or ioctl module */
-	if (is_qla8022(ha) && !reset_chip &&
+	if (is_qla80XX(ha) && !reset_chip &&
 	    test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) {
 
 		DEBUG2(ql4_printk(KERN_INFO, ha,
@@ -2978,13 +2991,13 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
 	}
 
 	/* Issue full chip reset if recovering from a catastrophic error,
-	 * or if stop_firmware fails for ISP-82xx.
+	 * or if stop_firmware fails for ISP-8xxx.
 	 * This is the default case for ISP-4xxx */
-	if (!is_qla8022(ha) || reset_chip) {
-		if (!is_qla8022(ha))
+	if (is_qla40XX(ha) || reset_chip) {
+		if (is_qla40XX(ha))
 			goto chip_reset;
 
-		/* Check if 82XX firmware is alive or not
+		/* Check if 8XXX firmware is alive or not
 		 * We may have arrived here from NEED_RESET
 		 * detection only */
 		if (test_bit(AF_FW_RECOVERY, &ha->flags))
@@ -3000,10 +3013,10 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
 			set_current_state(TASK_UNINTERRUPTIBLE);
 			schedule_timeout(HZ);
 		}
-
+chip_reset:
 		if (!test_bit(AF_FW_RECOVERY, &ha->flags))
 			qla4xxx_cmd_wait(ha);
-chip_reset:
+
 		qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
 		qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
 		DEBUG2(ql4_printk(KERN_INFO, ha,
@@ -3021,7 +3034,7 @@ recover_ha_init_adapter:
 		/* For ISP-4xxx, force function 1 to always initialize
 		 * before function 3 to prevent both funcions from
 		 * stepping on top of the other */
-		if (!is_qla8022(ha) && (ha->mac_index == 3))
+		if (is_qla40XX(ha) && (ha->mac_index == 3))
 			ssleep(6);
 
 		/* NOTE: AF_ONLINE flag set upon successful completion of
@@ -3039,11 +3052,12 @@ recover_ha_init_adapter:
 		 * Since we don't want to block the DPC for too long
 		 * with multiple resets in the same thread,
 		 * utilize DPC to retry */
-		if (is_qla8022(ha)) {
-			qla4_8xxx_idc_lock(ha);
-			dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-			qla4_8xxx_idc_unlock(ha);
-			if (dev_state == QLA82XX_DEV_FAILED) {
+		if (is_qla80XX(ha)) {
+			ha->isp_ops->idc_lock(ha);
+			dev_state = qla4_8xxx_rd_direct(ha,
+							QLA8XXX_CRB_DEV_STATE);
+			ha->isp_ops->idc_unlock(ha);
+			if (dev_state == QLA8XXX_DEV_FAILED) {
 				ql4_printk(KERN_INFO, ha, "%s: don't retry "
 					   "recover adapter. H/W is in Failed "
 					   "state\n", __func__);
@@ -3168,6 +3182,7 @@ int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
 	struct iscsi_session *sess;
 	struct ddb_entry *ddb_entry;
 	struct scsi_qla_host *ha;
+	int status = QLA_SUCCESS;
 
 	sess = cls_session->dd_data;
 	ddb_entry = sess->dd_data;
@@ -3175,11 +3190,20 @@ int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
 	ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
 		   " unblock user space session\n", ha->host_no, __func__,
 		   ddb_entry->fw_ddb_index);
-	iscsi_conn_start(ddb_entry->conn);
-	iscsi_conn_login_event(ddb_entry->conn,
-			       ISCSI_CONN_STATE_LOGGED_IN);
 
-	return QLA_SUCCESS;
+	if (!iscsi_is_session_online(cls_session)) {
+		iscsi_conn_start(ddb_entry->conn);
+		iscsi_conn_login_event(ddb_entry->conn,
+				       ISCSI_CONN_STATE_LOGGED_IN);
+	} else {
+		ql4_printk(KERN_INFO, ha,
+			   "scsi%ld: %s: ddb[%d] session [%d] already logged in\n",
+			   ha->host_no, __func__, ddb_entry->fw_ddb_index,
+			   cls_session->sid);
+		status = QLA_ERROR;
+	}
+
+	return status;
 }
 
 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
@@ -3373,15 +3397,26 @@ static void qla4xxx_do_dpc(struct work_struct *work)
 	/* post events to application */
 	qla4xxx_do_work(ha);
 
-	if (is_qla8022(ha)) {
+	if (is_qla80XX(ha)) {
 		if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) {
-			qla4_8xxx_idc_lock(ha);
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_FAILED);
-			qla4_8xxx_idc_unlock(ha);
+			if (is_qla8032(ha)) {
+				ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n",
+					   __func__);
+				/* disable pause frame for ISP83xx */
+				qla4_83xx_disable_pause(ha);
+			}
+
+			ha->isp_ops->idc_lock(ha);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_FAILED);
+			ha->isp_ops->idc_unlock(ha);
 			ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
 			qla4_8xxx_device_state_handler(ha);
 		}
+
+		if (test_and_clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags))
+			qla4_83xx_post_idc_ack(ha);
+
 		if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
 			qla4_8xxx_need_qsnt_handler(ha);
 		}
@@ -3391,7 +3426,8 @@ static void qla4xxx_do_dpc(struct work_struct *work)
 	    (test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
 	    test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
 	    test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) {
-		if (ql4xdontresethba) {
+		if ((is_qla8022(ha) && ql4xdontresethba) ||
+		    (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
 			DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
 			    ha->host_no, __func__));
 			clear_bit(DPC_RESET_HA, &ha->dpc_flags);
@@ -3477,6 +3513,18 @@ static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
 		ha->isp_ops->disable_intrs(ha);
 	}
 
+	if (is_qla40XX(ha)) {
+		writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
+		       &ha->reg->ctrl_status);
+		readl(&ha->reg->ctrl_status);
+	} else if (is_qla8022(ha)) {
+		writel(0, &ha->qla4_82xx_reg->host_int);
+		readl(&ha->qla4_82xx_reg->host_int);
+	} else if (is_qla8032(ha)) {
+		writel(0, &ha->qla4_83xx_reg->risc_intr);
+		readl(&ha->qla4_83xx_reg->risc_intr);
+	}
+
 	/* Remove timer thread, if present */
 	if (ha->timer_active)
 		qla4xxx_stop_timer(ha);
@@ -3492,10 +3540,10 @@ static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
 	/* Put firmware in known state */
 	ha->isp_ops->reset_firmware(ha);
 
-	if (is_qla8022(ha)) {
-		qla4_8xxx_idc_lock(ha);
+	if (is_qla80XX(ha)) {
+		ha->isp_ops->idc_lock(ha);
 		qla4_8xxx_clear_drv_active(ha);
-		qla4_8xxx_idc_unlock(ha);
+		ha->isp_ops->idc_unlock(ha);
 	}
 
 	/* Detach interrupts */
@@ -3542,16 +3590,20 @@ int qla4_8xxx_iospace_config(struct scsi_qla_host *ha)
 	/* Mapping of IO base pointer, door bell read and write pointer */
 
 	/* mapping of IO base pointer */
-	ha->qla4_8xxx_reg =
-	    (struct device_reg_82xx  __iomem *)((uint8_t *)ha->nx_pcibase +
-	    0xbc000 + (ha->pdev->devfn << 11));
+	if (is_qla8022(ha)) {
+		ha->qla4_82xx_reg = (struct device_reg_82xx  __iomem *)
+				    ((uint8_t *)ha->nx_pcibase + 0xbc000 +
+				     (ha->pdev->devfn << 11));
+		ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
+				    QLA82XX_CAM_RAM_DB2);
+	} else if (is_qla8032(ha)) {
+		ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *)
+				    ((uint8_t *)ha->nx_pcibase);
+	}
 
 	db_base = pci_resource_start(pdev, 4);  /* doorbell is on bar 4 */
 	db_len = pci_resource_len(pdev, 4);
 
-	ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 :
-	    QLA82XX_CAM_RAM_DB2);
-
 	return 0;
 iospace_error_exit:
 	return -ENOMEM;
@@ -3639,23 +3691,64 @@ static struct isp_operations qla4xxx_isp_ops = {
 	.rd_shdw_req_q_out      = qla4xxx_rd_shdw_req_q_out,
 	.rd_shdw_rsp_q_in       = qla4xxx_rd_shdw_rsp_q_in,
 	.get_sys_info           = qla4xxx_get_sys_info,
+	.queue_mailbox_command	= qla4xxx_queue_mbox_cmd,
+	.process_mailbox_interrupt = qla4xxx_process_mbox_intr,
 };
 
-static struct isp_operations qla4_8xxx_isp_ops = {
+static struct isp_operations qla4_82xx_isp_ops = {
 	.iospace_config         = qla4_8xxx_iospace_config,
 	.pci_config             = qla4_8xxx_pci_config,
-	.disable_intrs          = qla4_8xxx_disable_intrs,
-	.enable_intrs           = qla4_8xxx_enable_intrs,
+	.disable_intrs          = qla4_82xx_disable_intrs,
+	.enable_intrs           = qla4_82xx_enable_intrs,
 	.start_firmware         = qla4_8xxx_load_risc,
-	.intr_handler           = qla4_8xxx_intr_handler,
-	.interrupt_service_routine = qla4_8xxx_interrupt_service_routine,
-	.reset_chip             = qla4_8xxx_isp_reset,
+	.restart_firmware	= qla4_82xx_try_start_fw,
+	.intr_handler           = qla4_82xx_intr_handler,
+	.interrupt_service_routine = qla4_82xx_interrupt_service_routine,
+	.need_reset		= qla4_8xxx_need_reset,
+	.reset_chip             = qla4_82xx_isp_reset,
 	.reset_firmware         = qla4_8xxx_stop_firmware,
-	.queue_iocb             = qla4_8xxx_queue_iocb,
-	.complete_iocb          = qla4_8xxx_complete_iocb,
-	.rd_shdw_req_q_out      = qla4_8xxx_rd_shdw_req_q_out,
-	.rd_shdw_rsp_q_in       = qla4_8xxx_rd_shdw_rsp_q_in,
+	.queue_iocb             = qla4_82xx_queue_iocb,
+	.complete_iocb          = qla4_82xx_complete_iocb,
+	.rd_shdw_req_q_out      = qla4_82xx_rd_shdw_req_q_out,
+	.rd_shdw_rsp_q_in       = qla4_82xx_rd_shdw_rsp_q_in,
 	.get_sys_info           = qla4_8xxx_get_sys_info,
+	.rd_reg_direct		= qla4_82xx_rd_32,
+	.wr_reg_direct		= qla4_82xx_wr_32,
+	.rd_reg_indirect	= qla4_82xx_md_rd_32,
+	.wr_reg_indirect	= qla4_82xx_md_wr_32,
+	.idc_lock		= qla4_82xx_idc_lock,
+	.idc_unlock		= qla4_82xx_idc_unlock,
+	.rom_lock_recovery	= qla4_82xx_rom_lock_recovery,
+	.queue_mailbox_command	= qla4_82xx_queue_mbox_cmd,
+	.process_mailbox_interrupt = qla4_82xx_process_mbox_intr,
+};
+
+static struct isp_operations qla4_83xx_isp_ops = {
+	.iospace_config		= qla4_8xxx_iospace_config,
+	.pci_config		= qla4_8xxx_pci_config,
+	.disable_intrs		= qla4_83xx_disable_intrs,
+	.enable_intrs		= qla4_83xx_enable_intrs,
+	.start_firmware		= qla4_8xxx_load_risc,
+	.restart_firmware	= qla4_83xx_start_firmware,
+	.intr_handler		= qla4_83xx_intr_handler,
+	.interrupt_service_routine = qla4_83xx_interrupt_service_routine,
+	.need_reset		= qla4_8xxx_need_reset,
+	.reset_chip		= qla4_83xx_isp_reset,
+	.reset_firmware		= qla4_8xxx_stop_firmware,
+	.queue_iocb		= qla4_83xx_queue_iocb,
+	.complete_iocb		= qla4_83xx_complete_iocb,
+	.rd_shdw_req_q_out	= qla4_83xx_rd_shdw_req_q_out,
+	.rd_shdw_rsp_q_in	= qla4_83xx_rd_shdw_rsp_q_in,
+	.get_sys_info		= qla4_8xxx_get_sys_info,
+	.rd_reg_direct		= qla4_83xx_rd_reg,
+	.wr_reg_direct		= qla4_83xx_wr_reg,
+	.rd_reg_indirect	= qla4_83xx_rd_reg_indirect,
+	.wr_reg_indirect	= qla4_83xx_wr_reg_indirect,
+	.idc_lock		= qla4_83xx_drv_lock,
+	.idc_unlock		= qla4_83xx_drv_unlock,
+	.rom_lock_recovery	= qla4_83xx_rom_lock_recovery,
+	.queue_mailbox_command	= qla4_83xx_queue_mbox_cmd,
+	.process_mailbox_interrupt = qla4_83xx_process_mbox_intr,
 };
 
 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
@@ -3663,9 +3756,14 @@ uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
 	return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out);
 }
 
-uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
+uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
 {
-	return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out));
+	return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out));
+}
+
+uint16_t qla4_83xx_rd_shdw_req_q_out(struct scsi_qla_host *ha)
+{
+	return (uint16_t)le32_to_cpu(readl(&ha->qla4_83xx_reg->req_q_out));
 }
 
 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
@@ -3673,9 +3771,14 @@ uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
 	return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in);
 }
 
-uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
+uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
 {
-	return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in));
+	return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in));
+}
+
+uint16_t qla4_83xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
+{
+	return (uint16_t)le32_to_cpu(readl(&ha->qla4_83xx_reg->rsp_q_in));
 }
 
 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
@@ -4338,7 +4441,7 @@ static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
 		return QLA_ERROR;
 
 	/* For multi sessions, driver generates the ISID, so do not compare
-	 * ISID in reset path since it would be a comparision between the
+	 * ISID in reset path since it would be a comparison between the
 	 * driver generated ISID and firmware generated ISID. This could
 	 * lead to adding duplicated DDBs in the list as driver generated
 	 * ISID would not match firmware generated ISID.
@@ -5050,30 +5153,36 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	ha->pdev = pdev;
 	ha->host = host;
 	ha->host_no = host->host_no;
+	ha->func_num = PCI_FUNC(ha->pdev->devfn);
 
 	pci_enable_pcie_error_reporting(pdev);
 
 	/* Setup Runtime configurable options */
 	if (is_qla8022(ha)) {
-		ha->isp_ops = &qla4_8xxx_isp_ops;
-		rwlock_init(&ha->hw_lock);
+		ha->isp_ops = &qla4_82xx_isp_ops;
+		ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl;
 		ha->qdr_sn_window = -1;
 		ha->ddr_mn_window = -1;
 		ha->curr_window = 255;
-		ha->func_num = PCI_FUNC(ha->pdev->devfn);
 		nx_legacy_intr = &legacy_intr[ha->func_num];
 		ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
 		ha->nx_legacy_intr.tgt_status_reg =
 			nx_legacy_intr->tgt_status_reg;
 		ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
 		ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
+	} else if (is_qla8032(ha)) {
+		ha->isp_ops = &qla4_83xx_isp_ops;
+		ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl;
 	} else {
 		ha->isp_ops = &qla4xxx_isp_ops;
 	}
 
-	/* Set EEH reset type to fundamental if required by hba */
-	if (is_qla8022(ha))
+	if (is_qla80XX(ha)) {
+		rwlock_init(&ha->hw_lock);
+		ha->pf_bit = ha->func_num << 16;
+		/* Set EEH reset type to fundamental if required by hba */
 		pdev->needs_freset = 1;
+	}
 
 	/* Configure PCI I/O space. */
 	ret = ha->isp_ops->iospace_config(ha);
@@ -5094,6 +5203,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	init_completion(&ha->disable_acb_comp);
 
 	spin_lock_init(&ha->hardware_lock);
+	spin_lock_init(&ha->work_lock);
 
 	/* Initialize work list */
 	INIT_LIST_HEAD(&ha->work_list);
@@ -5128,8 +5238,20 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	if (ret)
 		goto probe_failed;
 
-	if (is_qla8022(ha))
-		(void) qla4_8xxx_get_flash_info(ha);
+	if (is_qla80XX(ha))
+		qla4_8xxx_get_flash_info(ha);
+
+	if (is_qla8032(ha)) {
+		qla4_83xx_read_reset_template(ha);
+		/*
+		 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0.
+		 * If DONRESET_BIT0 is set, drivers should not set dev_state
+		 * to NEED_RESET. But if NEED_RESET is set, drivers should
+		 * should honor the reset.
+		 */
+		if (ql4xdontresethba == 1)
+			qla4_83xx_set_idc_dontreset(ha);
+	}
 
 	/*
 	 * Initialize the Host adapter request/response queues and
@@ -5137,14 +5259,20 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	 * NOTE: interrupts enabled upon successful completion
 	 */
 	status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
+
+	/* Dont retry adapter initialization if IRQ allocation failed */
+	if (!test_bit(AF_IRQ_ATTACHED, &ha->flags))
+		goto skip_retry_init;
+
 	while ((!test_bit(AF_ONLINE, &ha->flags)) &&
 	    init_retry_count++ < MAX_INIT_RETRIES) {
 
-		if (is_qla8022(ha)) {
-			qla4_8xxx_idc_lock(ha);
-			dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-			qla4_8xxx_idc_unlock(ha);
-			if (dev_state == QLA82XX_DEV_FAILED) {
+		if (is_qla80XX(ha)) {
+			ha->isp_ops->idc_lock(ha);
+			dev_state = qla4_8xxx_rd_direct(ha,
+							QLA82XX_CRB_DEV_STATE);
+			ha->isp_ops->idc_unlock(ha);
+			if (dev_state == QLA8XXX_DEV_FAILED) {
 				ql4_printk(KERN_WARNING, ha, "%s: don't retry "
 				    "initialize adapter. H/W is in failed state\n",
 				    __func__);
@@ -5160,16 +5288,18 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 		status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
 	}
 
+skip_retry_init:
 	if (!test_bit(AF_ONLINE, &ha->flags)) {
 		ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
 
-		if (is_qla8022(ha) && ql4xdontresethba) {
+		if ((is_qla8022(ha) && ql4xdontresethba) ||
+		    (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
 			/* Put the device in failed state. */
 			DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n"));
-			qla4_8xxx_idc_lock(ha);
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_FAILED);
-			qla4_8xxx_idc_unlock(ha);
+			ha->isp_ops->idc_lock(ha);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_FAILED);
+			ha->isp_ops->idc_unlock(ha);
 		}
 		ret = -ENODEV;
 		goto remove_host;
@@ -5195,12 +5325,13 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 		goto remove_host;
 	}
 
-	/* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc
+	/*
+	 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc
 	 * (which is called indirectly by qla4xxx_initialize_adapter),
 	 * so that irqs will be registered after crbinit but before
 	 * mbx_intr_enable.
 	 */
-	if (!is_qla8022(ha)) {
+	if (is_qla40XX(ha)) {
 		ret = qla4xxx_request_irqs(ha);
 		if (ret) {
 			ql4_printk(KERN_WARNING, ha, "Failed to reserve "
@@ -5226,6 +5357,10 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	       ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
 	       ha->patch_number, ha->build_number);
 
+	/* Set the driver version */
+	if (is_qla80XX(ha))
+		qla4_8xxx_set_param(ha, SET_DRVR_VERSION);
+
 	if (qla4xxx_setup_boot_info(ha))
 		ql4_printk(KERN_ERR, ha,
 			   "%s: No iSCSI boot target configured\n", __func__);
@@ -5326,16 +5461,23 @@ static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
 	}
 }
 /**
- * qla4xxx_remove_adapter - calback function to remove adapter.
+ * qla4xxx_remove_adapter - callback function to remove adapter.
  * @pci_dev: PCI device pointer
  **/
 static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
 {
 	struct scsi_qla_host *ha;
 
+	/*
+	 * If the PCI device is disabled then it means probe_adapter had
+	 * failed and resources already cleaned up on probe_adapter exit.
+	 */
+	if (!pci_is_enabled(pdev))
+		return;
+
 	ha = pci_get_drvdata(pdev);
 
-	if (!is_qla8022(ha))
+	if (is_qla40XX(ha))
 		qla4xxx_prevent_other_port_reinit(ha);
 
 	/* destroy iface from sysfs */
@@ -5755,7 +5897,16 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
 
 	ha = to_qla_host(cmd->device->host);
 
-	if (ql4xdontresethba) {
+	if (is_qla8032(ha) && ql4xdontresethba)
+		qla4_83xx_set_idc_dontreset(ha);
+
+	/*
+	 * For ISP8324, if IDC_CTRL DONTRESET_BIT0 is set by other
+	 * protocol drivers, we should not set device_state to
+	 * NEED_RESET
+	 */
+	if (ql4xdontresethba ||
+	    (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) {
 		DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
 		     ha->host_no, __func__));
 
@@ -5779,7 +5930,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
 	}
 
 	if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
-		if (is_qla8022(ha))
+		if (is_qla80XX(ha))
 			set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
 		else
 			set_bit(DPC_RESET_HA, &ha->dpc_flags);
@@ -5874,7 +6025,7 @@ static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
 		break;
 	case SCSI_FIRMWARE_RESET:
 		if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
-			if (is_qla8022(ha))
+			if (is_qla80XX(ha))
 				/* set firmware context reset */
 				set_bit(DPC_RESET_HA_FW_CONTEXT,
 					&ha->dpc_flags);
@@ -6013,32 +6164,43 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
 		    "0x%x is the owner\n", ha->host_no, __func__,
 		    ha->pdev->devfn);
 
-		qla4_8xxx_idc_lock(ha);
-		qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-		    QLA82XX_DEV_COLD);
-
-		qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
-		    QLA82XX_IDC_VERSION);
+		ha->isp_ops->idc_lock(ha);
+		qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+				    QLA8XXX_DEV_COLD);
+		ha->isp_ops->idc_unlock(ha);
+
+		rval = qla4_8xxx_update_idc_reg(ha);
+		if (rval == QLA_ERROR) {
+			ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n",
+				   ha->host_no, __func__);
+			ha->isp_ops->idc_lock(ha);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_FAILED);
+			ha->isp_ops->idc_unlock(ha);
+			goto exit_error_recovery;
+		}
 
-		qla4_8xxx_idc_unlock(ha);
 		clear_bit(AF_FW_RECOVERY, &ha->flags);
 		rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
-		qla4_8xxx_idc_lock(ha);
 
 		if (rval != QLA_SUCCESS) {
 			ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
 			    "FAILED\n", ha->host_no, __func__);
+			ha->isp_ops->idc_lock(ha);
 			qla4_8xxx_clear_drv_active(ha);
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_FAILED);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_FAILED);
+			ha->isp_ops->idc_unlock(ha);
 		} else {
 			ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: "
 			    "READY\n", ha->host_no, __func__);
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_READY);
+			ha->isp_ops->idc_lock(ha);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
+					    QLA8XXX_DEV_READY);
 			/* Clear driver state register */
-			qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
+			qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0);
 			qla4_8xxx_set_drv_active(ha);
+			ha->isp_ops->idc_unlock(ha);
 			ret = qla4xxx_request_irqs(ha);
 			if (ret) {
 				ql4_printk(KERN_WARNING, ha, "Failed to "
@@ -6050,13 +6212,12 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
 				rval = QLA_SUCCESS;
 			}
 		}
-		qla4_8xxx_idc_unlock(ha);
 	} else {
 		ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not "
 		    "the reset owner\n", ha->host_no, __func__,
 		    ha->pdev->devfn);
-		if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
-		    QLA82XX_DEV_READY)) {
+		if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) ==
+		     QLA8XXX_DEV_READY)) {
 			clear_bit(AF_FW_RECOVERY, &ha->flags);
 			rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
 			if (rval == QLA_SUCCESS) {
@@ -6071,11 +6232,12 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
 					rval = QLA_SUCCESS;
 				}
 			}
-			qla4_8xxx_idc_lock(ha);
+			ha->isp_ops->idc_lock(ha);
 			qla4_8xxx_set_drv_active(ha);
-			qla4_8xxx_idc_unlock(ha);
+			ha->isp_ops->idc_unlock(ha);
 		}
 	}
+exit_error_recovery:
 	clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags);
 	return rval;
 }
@@ -6114,7 +6276,7 @@ qla4xxx_pci_slot_reset(struct pci_dev *pdev)
 
 	ha->isp_ops->disable_intrs(ha);
 
-	if (is_qla8022(ha)) {
+	if (is_qla80XX(ha)) {
 		if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) {
 			ret = PCI_ERS_RESULT_RECOVERED;
 			goto exit_slot_reset;
@@ -6148,7 +6310,7 @@ qla4xxx_pci_resume(struct pci_dev *pdev)
 	clear_bit(AF_EEH_BUSY, &ha->flags);
 }
 
-static struct pci_error_handlers qla4xxx_err_handler = {
+static const struct pci_error_handlers qla4xxx_err_handler = {
 	.error_detected = qla4xxx_pci_error_detected,
 	.mmio_enabled = qla4xxx_pci_mmio_enabled,
 	.slot_reset = qla4xxx_pci_slot_reset,
@@ -6180,6 +6342,12 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
 		.subvendor      = PCI_ANY_ID,
 		.subdevice      = PCI_ANY_ID,
 	},
+	{
+		.vendor		= PCI_VENDOR_ID_QLOGIC,
+		.device		= PCI_DEVICE_ID_QLOGIC_ISP8324,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+	},
 	{0, 0},
 };
 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h
index 725034f4252..f6df2ea91ab 100644
--- a/drivers/scsi/qla4xxx/ql4_version.h
+++ b/drivers/scsi/qla4xxx/ql4_version.h
@@ -1,8 +1,8 @@
 /*
  * QLogic iSCSI HBA Driver
- * Copyright (c)  2003-2010 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
 
-#define QLA4XXX_DRIVER_VERSION	"5.02.00-k18"
+#define QLA4XXX_DRIVER_VERSION	"5.03.00-k1"
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 182d5a57ab7..57fbd5a3d4e 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -109,6 +109,7 @@ static const char * scsi_debug_version_date = "20100324";
 #define DEF_OPT_BLKS 64
 #define DEF_PHYSBLK_EXP 0
 #define DEF_PTYPE   0
+#define DEF_REMOVABLE false
 #define DEF_SCSI_LEVEL   5    /* INQUIRY, byte2 [5->SPC-3] */
 #define DEF_SECTOR_SIZE 512
 #define DEF_UNMAP_ALIGNMENT 0
@@ -193,11 +194,11 @@ static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY;
 static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
 static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
 static unsigned int scsi_debug_write_same_length = DEF_WRITESAME_LENGTH;
+static bool scsi_debug_removable = DEF_REMOVABLE;
 
 static int scsi_debug_cmnd_count = 0;
 
 #define DEV_READONLY(TGT)      (0)
-#define DEV_REMOVEABLE(TGT)    (0)
 
 static unsigned int sdebug_store_sectors;
 static sector_t sdebug_capacity;	/* in sectors */
@@ -919,7 +920,7 @@ static int resp_inquiry(struct scsi_cmnd * scp, int target,
 		return ret;
 	}
 	/* drops through here for a standard inquiry */
-	arr[1] = DEV_REMOVEABLE(target) ? 0x80 : 0;	/* Removable disk */
+	arr[1] = scsi_debug_removable ? 0x80 : 0;	/* Removable disk */
 	arr[2] = scsi_debug_scsi_level;
 	arr[3] = 2;    /* response_data_format==2 */
 	arr[4] = SDEBUG_LONG_INQ_SZ - 5;
@@ -1211,7 +1212,7 @@ static int resp_format_pg(unsigned char * p, int pcontrol, int target)
 	p[11] = sdebug_sectors_per & 0xff;
 	p[12] = (scsi_debug_sector_size >> 8) & 0xff;
 	p[13] = scsi_debug_sector_size & 0xff;
-	if (DEV_REMOVEABLE(target))
+	if (scsi_debug_removable)
 		p[20] |= 0x20; /* should agree with INQUIRY */
 	if (1 == pcontrol)
 		memset(p + 2, 0, sizeof(format_pg) - 2);
@@ -2754,6 +2755,7 @@ module_param_named(opt_blks, scsi_debug_opt_blks, int, S_IRUGO);
 module_param_named(opts, scsi_debug_opts, int, S_IRUGO | S_IWUSR);
 module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
 module_param_named(ptype, scsi_debug_ptype, int, S_IRUGO | S_IWUSR);
+module_param_named(removable, scsi_debug_removable, bool, S_IRUGO | S_IWUSR);
 module_param_named(scsi_level, scsi_debug_scsi_level, int, S_IRUGO);
 module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO);
 module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO);
@@ -2796,6 +2798,7 @@ MODULE_PARM_DESC(opt_blks, "optimal transfer length in block (def=64)");
 MODULE_PARM_DESC(opts, "1->noise, 2->medium_err, 4->timeout, 8->recovered_err... (def=0)");
 MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
 MODULE_PARM_DESC(ptype, "SCSI peripheral type(def=0[disk])");
+MODULE_PARM_DESC(removable, "claim to have removable media (def=0)");
 MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=5[SPC-3])");
 MODULE_PARM_DESC(sector_size, "logical block size in bytes (def=512)");
 MODULE_PARM_DESC(unmap_alignment, "lowest aligned thin provisioning lba (def=0)");
@@ -3205,6 +3208,25 @@ static ssize_t sdebug_map_show(struct device_driver *ddp, char *buf)
 }
 DRIVER_ATTR(map, S_IRUGO, sdebug_map_show, NULL);
 
+static ssize_t sdebug_removable_show(struct device_driver *ddp,
+				     char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_removable ? 1 : 0);
+}
+static ssize_t sdebug_removable_store(struct device_driver *ddp,
+				      const char *buf, size_t count)
+{
+	int n;
+
+	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
+		scsi_debug_removable = (n > 0);
+		return count;
+	}
+	return -EINVAL;
+}
+DRIVER_ATTR(removable, S_IRUGO | S_IWUSR, sdebug_removable_show,
+	    sdebug_removable_store);
+
 
 /* Note: The following function creates attribute files in the
    /sys/bus/pseudo/drivers/scsi_debug directory. The advantage of these
@@ -3230,6 +3252,7 @@ static int do_create_driverfs_files(void)
 	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
 	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_ptype);
 	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_opts);
+	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_removable);
 	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
 	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_virtual_gb);
 	ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_vpd_use_hostno);
@@ -3255,6 +3278,7 @@ static void do_remove_driverfs_files(void)
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_opts);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_ptype);
+	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_removable);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_parts);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_no_uld);
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index cf8dfab9489..43fca9170bf 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -172,6 +172,7 @@ static struct {
 	{"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
 	{"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
 	{"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
+	{"HITACHI", "HUS1530", "*", BLIST_NO_DIF},
 	{"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
 	{"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
 	{"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 4a6381c8725..de2337f255a 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -42,6 +42,8 @@
 
 #include <trace/events/scsi.h>
 
+static void scsi_eh_done(struct scsi_cmnd *scmd);
+
 #define SENSE_TIMEOUT		(10*HZ)
 
 /*
@@ -241,6 +243,14 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
 	if (! scsi_command_normalize_sense(scmd, &sshdr))
 		return FAILED;	/* no valid sense data */
 
+	if (scmd->cmnd[0] == TEST_UNIT_READY && scmd->scsi_done != scsi_eh_done)
+		/*
+		 * nasty: for mid-layer issued TURs, we need to return the
+		 * actual sense data without any recovery attempt.  For eh
+		 * issued ones, we need to try to recover and interpret
+		 */
+		return SUCCESS;
+
 	if (scsi_sense_is_deferred(&sshdr))
 		return NEEDS_RETRY;
 
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ffd77739ae3..da36a3a81a9 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -776,7 +776,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 	}
 
 	if (req->cmd_type == REQ_TYPE_BLOCK_PC) { /* SG_IO ioctl from block level */
-		req->errors = result;
 		if (result) {
 			if (sense_valid && req->sense) {
 				/*
@@ -792,6 +791,10 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 			if (!sense_deferred)
 				error = __scsi_error_from_host_byte(cmd, result);
 		}
+		/*
+		 * __scsi_error_from_host_byte may have reset the host_byte
+		 */
+		req->errors = cmd->result;
 
 		req->resid_len = scsi_get_resid(cmd);
 
@@ -2470,7 +2473,8 @@ scsi_internal_device_unblock(struct scsi_device *sdev,
 	 * Try to transition the scsi device to SDEV_RUNNING or one of the
 	 * offlined states and goose the device queue if successful.
 	 */
-	if (sdev->sdev_state == SDEV_BLOCK)
+	if ((sdev->sdev_state == SDEV_BLOCK) ||
+	    (sdev->sdev_state == SDEV_TRANSPORT_OFFLINE))
 		sdev->sdev_state = new_state;
 	else if (sdev->sdev_state == SDEV_CREATED_BLOCK) {
 		if (new_state == SDEV_TRANSPORT_OFFLINE ||
diff --git a/drivers/scsi/scsi_netlink.c b/drivers/scsi/scsi_netlink.c
index 8818dd681c1..65123a21b97 100644
--- a/drivers/scsi/scsi_netlink.c
+++ b/drivers/scsi/scsi_netlink.c
@@ -33,40 +33,6 @@
 struct sock *scsi_nl_sock = NULL;
 EXPORT_SYMBOL_GPL(scsi_nl_sock);
 
-static DEFINE_SPINLOCK(scsi_nl_lock);
-static struct list_head scsi_nl_drivers;
-
-static u32	scsi_nl_state;
-#define STATE_EHANDLER_BSY		0x00000001
-
-struct scsi_nl_transport {
-	int (*msg_handler)(struct sk_buff *);
-	void (*event_handler)(struct notifier_block *, unsigned long, void *);
-	unsigned int refcnt;
-	int flags;
-};
-
-/* flags values (bit flags) */
-#define HANDLER_DELETING		0x1
-
-static struct scsi_nl_transport transports[SCSI_NL_MAX_TRANSPORTS] =
-	{ {NULL, }, };
-
-
-struct scsi_nl_drvr {
-	struct list_head next;
-	int (*dmsg_handler)(struct Scsi_Host *shost, void *payload,
-				 u32 len, u32 pid);
-	void (*devt_handler)(struct notifier_block *nb,
-				 unsigned long event, void *notify_ptr);
-	struct scsi_host_template *hostt;
-	u64 vendor_id;
-	unsigned int refcnt;
-	int flags;
-};
-
-
-
 /**
  * scsi_nl_rcv_msg - Receive message handler.
  * @skb:		socket receive buffer
@@ -81,7 +47,6 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
 {
 	struct nlmsghdr *nlh;
 	struct scsi_nl_hdr *hdr;
-	unsigned long flags;
 	u32 rlen;
 	int err, tport;
 
@@ -126,22 +91,24 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
 		/*
 		 * Deliver message to the appropriate transport
 		 */
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-
 		tport = hdr->transport;
-		if ((tport < SCSI_NL_MAX_TRANSPORTS) &&
-		    !(transports[tport].flags & HANDLER_DELETING) &&
-		    (transports[tport].msg_handler)) {
-			transports[tport].refcnt++;
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			err = transports[tport].msg_handler(skb);
-			spin_lock_irqsave(&scsi_nl_lock, flags);
-			transports[tport].refcnt--;
-		} else
+		if (tport == SCSI_NL_TRANSPORT) {
+			switch (hdr->msgtype) {
+			case SCSI_NL_SHOST_VENDOR:
+				/* Locate the driver that corresponds to the message */
+				err = -ESRCH;
+				break;
+			default:
+				err = -EBADR;
+				break;
+			}
+			if (err)
+				printk(KERN_WARNING "%s: Msgtype %d failed - err %d\n",
+				       __func__, hdr->msgtype, err);
+		}
+		else
 			err = -ENOENT;
 
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
 next_msg:
 		if ((err) || (nlh->nlmsg_flags & NLM_F_ACK))
 			netlink_ack(skb, nlh, err);
@@ -150,333 +117,6 @@ next_msg:
 	}
 }
 
-
-/**
- * scsi_nl_rcv_event - Event handler for a netlink socket.
- * @this:		event notifier block
- * @event:		event type
- * @ptr:		event payload
- *
- **/
-static int
-scsi_nl_rcv_event(struct notifier_block *this, unsigned long event, void *ptr)
-{
-	struct netlink_notify *n = ptr;
-	struct scsi_nl_drvr *driver;
-	unsigned long flags;
-	int tport;
-
-	if (n->protocol != NETLINK_SCSITRANSPORT)
-		return NOTIFY_DONE;
-
-	spin_lock_irqsave(&scsi_nl_lock, flags);
-	scsi_nl_state |= STATE_EHANDLER_BSY;
-
-	/*
-	 * Pass event on to any transports that may be listening
-	 */
-	for (tport = 0; tport < SCSI_NL_MAX_TRANSPORTS; tport++) {
-		if (!(transports[tport].flags & HANDLER_DELETING) &&
-		    (transports[tport].event_handler)) {
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			transports[tport].event_handler(this, event, ptr);
-			spin_lock_irqsave(&scsi_nl_lock, flags);
-		}
-	}
-
-	/*
-	 * Pass event on to any drivers that may be listening
-	 */
-	list_for_each_entry(driver, &scsi_nl_drivers, next) {
-		if (!(driver->flags & HANDLER_DELETING) &&
-		    (driver->devt_handler)) {
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			driver->devt_handler(this, event, ptr);
-			spin_lock_irqsave(&scsi_nl_lock, flags);
-		}
-	}
-
-	scsi_nl_state &= ~STATE_EHANDLER_BSY;
-	spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block scsi_netlink_notifier = {
-	.notifier_call  = scsi_nl_rcv_event,
-};
-
-
-/*
- * GENERIC SCSI transport receive and event handlers
- */
-
-/**
- * scsi_generic_msg_handler - receive message handler for GENERIC transport messages
- * @skb:		socket receive buffer
- **/
-static int
-scsi_generic_msg_handler(struct sk_buff *skb)
-{
-	struct nlmsghdr *nlh = nlmsg_hdr(skb);
-	struct scsi_nl_hdr *snlh = NLMSG_DATA(nlh);
-	struct scsi_nl_drvr *driver;
-	struct Scsi_Host *shost;
-	unsigned long flags;
-	int err = 0, match, pid;
-
-	pid = NETLINK_CREDS(skb)->pid;
-
-	switch (snlh->msgtype) {
-	case SCSI_NL_SHOST_VENDOR:
-		{
-		struct scsi_nl_host_vendor_msg *msg = NLMSG_DATA(nlh);
-
-		/* Locate the driver that corresponds to the message */
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-		match = 0;
-		list_for_each_entry(driver, &scsi_nl_drivers, next) {
-			if (driver->vendor_id == msg->vendor_id) {
-				match = 1;
-				break;
-			}
-		}
-
-		if ((!match) || (!driver->dmsg_handler)) {
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			err = -ESRCH;
-			goto rcv_exit;
-		}
-
-		if (driver->flags & HANDLER_DELETING) {
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			err = -ESHUTDOWN;
-			goto rcv_exit;
-		}
-
-		driver->refcnt++;
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
-
-		/* if successful, scsi_host_lookup takes a shost reference */
-		shost = scsi_host_lookup(msg->host_no);
-		if (!shost) {
-			err = -ENODEV;
-			goto driver_exit;
-		}
-
-		/* is this host owned by the vendor ? */
-		if (shost->hostt != driver->hostt) {
-			err = -EINVAL;
-			goto vendormsg_put;
-		}
-
-		/* pass message on to the driver */
-		err = driver->dmsg_handler(shost, (void *)&msg[1],
-					 msg->vmsg_datalen, pid);
-
-vendormsg_put:
-		/* release reference by scsi_host_lookup */
-		scsi_host_put(shost);
-
-driver_exit:
-		/* release our own reference on the registration object */
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-		driver->refcnt--;
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-		break;
-		}
-
-	default:
-		err = -EBADR;
-		break;
-	}
-
-rcv_exit:
-	if (err)
-		printk(KERN_WARNING "%s: Msgtype %d failed - err %d\n",
-			 __func__, snlh->msgtype, err);
-	return err;
-}
-
-
-/**
- * scsi_nl_add_transport -
- *    Registers message and event handlers for a transport. Enables
- *    receipt of netlink messages and events to a transport.
- *
- * @tport:		transport registering handlers
- * @msg_handler:	receive message handler callback
- * @event_handler:	receive event handler callback
- **/
-int
-scsi_nl_add_transport(u8 tport,
-	int (*msg_handler)(struct sk_buff *),
-	void (*event_handler)(struct notifier_block *, unsigned long, void *))
-{
-	unsigned long flags;
-	int err = 0;
-
-	if (tport >= SCSI_NL_MAX_TRANSPORTS)
-		return -EINVAL;
-
-	spin_lock_irqsave(&scsi_nl_lock, flags);
-
-	if (scsi_nl_state & STATE_EHANDLER_BSY) {
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-		msleep(1);
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-	}
-
-	if (transports[tport].msg_handler || transports[tport].event_handler) {
-		err = -EALREADY;
-		goto register_out;
-	}
-
-	transports[tport].msg_handler = msg_handler;
-	transports[tport].event_handler = event_handler;
-	transports[tport].flags = 0;
-	transports[tport].refcnt = 0;
-
-register_out:
-	spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
-	return err;
-}
-EXPORT_SYMBOL_GPL(scsi_nl_add_transport);
-
-
-/**
- * scsi_nl_remove_transport -
- *    Disable transport receiption of messages and events
- *
- * @tport:		transport deregistering handlers
- *
- **/
-void
-scsi_nl_remove_transport(u8 tport)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&scsi_nl_lock, flags);
-	if (scsi_nl_state & STATE_EHANDLER_BSY) {
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-		msleep(1);
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-	}
-
-	if (tport < SCSI_NL_MAX_TRANSPORTS) {
-		transports[tport].flags |= HANDLER_DELETING;
-
-		while (transports[tport].refcnt != 0) {
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			schedule_timeout_uninterruptible(HZ/4);
-			spin_lock_irqsave(&scsi_nl_lock, flags);
-		}
-		transports[tport].msg_handler = NULL;
-		transports[tport].event_handler = NULL;
-		transports[tport].flags = 0;
-	}
-
-	spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
-	return;
-}
-EXPORT_SYMBOL_GPL(scsi_nl_remove_transport);
-
-
-/**
- * scsi_nl_add_driver -
- *    A driver is registering its interfaces for SCSI netlink messages
- *
- * @vendor_id:          A unique identification value for the driver.
- * @hostt:		address of the driver's host template. Used
- *			to verify an shost is bound to the driver
- * @nlmsg_handler:	receive message handler callback
- * @nlevt_handler:	receive event handler callback
- *
- * Returns:
- *   0 on Success
- *   error result otherwise
- **/
-int
-scsi_nl_add_driver(u64 vendor_id, struct scsi_host_template *hostt,
-	int (*nlmsg_handler)(struct Scsi_Host *shost, void *payload,
-				 u32 len, u32 pid),
-	void (*nlevt_handler)(struct notifier_block *nb,
-				 unsigned long event, void *notify_ptr))
-{
-	struct scsi_nl_drvr *driver;
-	unsigned long flags;
-
-	driver = kzalloc(sizeof(*driver), GFP_KERNEL);
-	if (unlikely(!driver)) {
-		printk(KERN_ERR "%s: allocation failure\n", __func__);
-		return -ENOMEM;
-	}
-
-	driver->dmsg_handler = nlmsg_handler;
-	driver->devt_handler = nlevt_handler;
-	driver->hostt = hostt;
-	driver->vendor_id = vendor_id;
-
-	spin_lock_irqsave(&scsi_nl_lock, flags);
-	if (scsi_nl_state & STATE_EHANDLER_BSY) {
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-		msleep(1);
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-	}
-	list_add_tail(&driver->next, &scsi_nl_drivers);
-	spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(scsi_nl_add_driver);
-
-
-/**
- * scsi_nl_remove_driver -
- *    An driver is unregistering with the SCSI netlink messages
- *
- * @vendor_id:          The unique identification value for the driver.
- **/
-void
-scsi_nl_remove_driver(u64 vendor_id)
-{
-	struct scsi_nl_drvr *driver;
-	unsigned long flags;
-
-	spin_lock_irqsave(&scsi_nl_lock, flags);
-	if (scsi_nl_state & STATE_EHANDLER_BSY) {
-		spin_unlock_irqrestore(&scsi_nl_lock, flags);
-		msleep(1);
-		spin_lock_irqsave(&scsi_nl_lock, flags);
-	}
-
-	list_for_each_entry(driver, &scsi_nl_drivers, next) {
-		if (driver->vendor_id == vendor_id) {
-			driver->flags |= HANDLER_DELETING;
-			while (driver->refcnt != 0) {
-				spin_unlock_irqrestore(&scsi_nl_lock, flags);
-				schedule_timeout_uninterruptible(HZ/4);
-				spin_lock_irqsave(&scsi_nl_lock, flags);
-			}
-			list_del(&driver->next);
-			kfree(driver);
-			spin_unlock_irqrestore(&scsi_nl_lock, flags);
-			return;
-		}
-	}
-
-	spin_unlock_irqrestore(&scsi_nl_lock, flags);
-
-	printk(KERN_ERR "%s: removal of driver failed - vendor_id 0x%llx\n",
-	       __func__, (unsigned long long)vendor_id);
-	return;
-}
-EXPORT_SYMBOL_GPL(scsi_nl_remove_driver);
-
-
 /**
  * scsi_netlink_init - Called by SCSI subsystem to initialize
  * 	the SCSI transport netlink interface
@@ -485,36 +125,19 @@ EXPORT_SYMBOL_GPL(scsi_nl_remove_driver);
 void
 scsi_netlink_init(void)
 {
-	int error;
 	struct netlink_kernel_cfg cfg = {
 		.input	= scsi_nl_rcv_msg,
 		.groups	= SCSI_NL_GRP_CNT,
 	};
 
-	INIT_LIST_HEAD(&scsi_nl_drivers);
-
-	error = netlink_register_notifier(&scsi_netlink_notifier);
-	if (error) {
-		printk(KERN_ERR "%s: register of event handler failed - %d\n",
-				__func__, error);
-		return;
-	}
-
 	scsi_nl_sock = netlink_kernel_create(&init_net, NETLINK_SCSITRANSPORT,
-					     THIS_MODULE, &cfg);
+					     &cfg);
 	if (!scsi_nl_sock) {
 		printk(KERN_ERR "%s: register of receive handler failed\n",
 				__func__);
-		netlink_unregister_notifier(&scsi_netlink_notifier);
 		return;
 	}
 
-	/* Register the entry points for the generic SCSI transport */
-	error = scsi_nl_add_transport(SCSI_NL_TRANSPORT,
-				scsi_generic_msg_handler, NULL);
-	if (error)
-		printk(KERN_ERR "%s: register of GENERIC transport handler"
-				"  failed - %d\n", __func__, error);
 	return;
 }
 
@@ -526,158 +149,10 @@ scsi_netlink_init(void)
 void
 scsi_netlink_exit(void)
 {
-	scsi_nl_remove_transport(SCSI_NL_TRANSPORT);
-
 	if (scsi_nl_sock) {
 		netlink_kernel_release(scsi_nl_sock);
-		netlink_unregister_notifier(&scsi_netlink_notifier);
 	}
 
 	return;
 }
 
-
-/*
- * Exported Interfaces
- */
-
-/**
- * scsi_nl_send_transport_msg -
- *    Generic function to send a single message from a SCSI transport to
- *    a single process
- *
- * @pid:		receiving pid
- * @hdr:		message payload
- *
- **/
-void
-scsi_nl_send_transport_msg(u32 pid, struct scsi_nl_hdr *hdr)
-{
-	struct sk_buff *skb;
-	struct nlmsghdr	*nlh;
-	const char *fn;
-	char *datab;
-	u32 len, skblen;
-	int err;
-
-	if (!scsi_nl_sock) {
-		err = -ENOENT;
-		fn = "netlink socket";
-		goto msg_fail;
-	}
-
-	len = NLMSG_SPACE(hdr->msglen);
-	skblen = NLMSG_SPACE(len);
-
-	skb = alloc_skb(skblen, GFP_KERNEL);
-	if (!skb) {
-		err = -ENOBUFS;
-		fn = "alloc_skb";
-		goto msg_fail;
-	}
-
-	nlh = nlmsg_put(skb, pid, 0, SCSI_TRANSPORT_MSG, len - sizeof(*nlh), 0);
-	if (!nlh) {
-		err = -ENOBUFS;
-		fn = "nlmsg_put";
-		goto msg_fail_skb;
-	}
-	datab = NLMSG_DATA(nlh);
-	memcpy(datab, hdr, hdr->msglen);
-
-	err = nlmsg_unicast(scsi_nl_sock, skb, pid);
-	if (err < 0) {
-		fn = "nlmsg_unicast";
-		/* nlmsg_unicast already kfree_skb'd */
-		goto msg_fail;
-	}
-
-	return;
-
-msg_fail_skb:
-	kfree_skb(skb);
-msg_fail:
-	printk(KERN_WARNING
-		"%s: Dropped Message : pid %d Transport %d, msgtype x%x, "
-		"msglen %d: %s : err %d\n",
-		__func__, pid, hdr->transport, hdr->msgtype, hdr->msglen,
-		fn, err);
-	return;
-}
-EXPORT_SYMBOL_GPL(scsi_nl_send_transport_msg);
-
-
-/**
- * scsi_nl_send_vendor_msg - called to send a shost vendor unique message
- *                      to a specific process id.
- *
- * @pid:		process id of the receiver
- * @host_no:		host # sending the message
- * @vendor_id:		unique identifier for the driver's vendor
- * @data_len:		amount, in bytes, of vendor unique payload data
- * @data_buf:		pointer to vendor unique data buffer
- *
- * Returns:
- *   0 on successful return
- *   otherwise, failing error code
- *
- * Notes:
- *	This routine assumes no locks are held on entry.
- */
-int
-scsi_nl_send_vendor_msg(u32 pid, unsigned short host_no, u64 vendor_id,
-			 char *data_buf, u32 data_len)
-{
-	struct sk_buff *skb;
-	struct nlmsghdr	*nlh;
-	struct scsi_nl_host_vendor_msg *msg;
-	u32 len, skblen;
-	int err;
-
-	if (!scsi_nl_sock) {
-		err = -ENOENT;
-		goto send_vendor_fail;
-	}
-
-	len = SCSI_NL_MSGALIGN(sizeof(*msg) + data_len);
-	skblen = NLMSG_SPACE(len);
-
-	skb = alloc_skb(skblen, GFP_KERNEL);
-	if (!skb) {
-		err = -ENOBUFS;
-		goto send_vendor_fail;
-	}
-
-	nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG,
-				skblen - sizeof(*nlh), 0);
-	if (!nlh) {
-		err = -ENOBUFS;
-		goto send_vendor_fail_skb;
-	}
-	msg = NLMSG_DATA(nlh);
-
-	INIT_SCSI_NL_HDR(&msg->snlh, SCSI_NL_TRANSPORT,
-				SCSI_NL_SHOST_VENDOR, len);
-	msg->vendor_id = vendor_id;
-	msg->host_no = host_no;
-	msg->vmsg_datalen = data_len;	/* bytes */
-	memcpy(&msg[1], data_buf, data_len);
-
-	err = nlmsg_unicast(scsi_nl_sock, skb, pid);
-	if (err)
-		/* nlmsg_multicast already kfree_skb'd */
-		goto send_vendor_fail;
-
-	return 0;
-
-send_vendor_fail_skb:
-	kfree_skb(skb);
-send_vendor_fail:
-	printk(KERN_WARNING
-		"%s: Dropped SCSI Msg : host %d vendor_unique - err %d\n",
-		__func__, host_no, err);
-	return err;
-}
-EXPORT_SYMBOL(scsi_nl_send_vendor_msg);
-
-
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 56a93794c47..3e58b2245f1 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -764,6 +764,16 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	sdev->model = (char *) (sdev->inquiry + 16);
 	sdev->rev = (char *) (sdev->inquiry + 32);
 
+	if (strncmp(sdev->vendor, "ATA     ", 8) == 0) {
+		/*
+		 * sata emulation layer device.  This is a hack to work around
+		 * the SATL power management specifications which state that
+		 * when the SATL detects the device has gone into standby
+		 * mode, it shall respond with NOT READY.
+		 */
+		sdev->allow_restart = 1;
+	}
+
 	if (*bflags & BLIST_ISROM) {
 		sdev->type = TYPE_ROM;
 		sdev->removable = 1;
@@ -911,6 +921,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	if (*bflags & BLIST_RETRY_HWERROR)
 		sdev->retry_hwerror = 1;
 
+	if (*bflags & BLIST_NO_DIF)
+		sdev->no_dif = 1;
+
 	transport_configure_device(&sdev->sdev_gendev);
 
 	if (sdev->host->hostt->slave_configure) {
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 093d4f6a54d..ce5224c92ed 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1031,33 +1031,31 @@ static void __scsi_remove_target(struct scsi_target *starget)
 void scsi_remove_target(struct device *dev)
 {
 	struct Scsi_Host *shost = dev_to_shost(dev->parent);
-	struct scsi_target *starget, *found;
+	struct scsi_target *starget, *last = NULL;
 	unsigned long flags;
 
- restart:
-	found = NULL;
+	/* remove targets being careful to lookup next entry before
+	 * deleting the last
+	 */
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_for_each_entry(starget, &shost->__targets, siblings) {
 		if (starget->state == STARGET_DEL)
 			continue;
 		if (starget->dev.parent == dev || &starget->dev == dev) {
-			found = starget;
-			found->reap_ref++;
-			break;
+			/* assuming new targets arrive at the end */
+			starget->reap_ref++;
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			if (last)
+				scsi_target_reap(last);
+			last = starget;
+			__scsi_remove_target(starget);
+			spin_lock_irqsave(shost->host_lock, flags);
 		}
 	}
 	spin_unlock_irqrestore(shost->host_lock, flags);
 
-	if (found) {
-		__scsi_remove_target(found);
-		scsi_target_reap(found);
-		/* in the case where @dev has multiple starget children,
-		 * continue removing.
-		 *
-		 * FIXME: does such a case exist?
-		 */
-		goto restart;
-	}
+	if (last)
+		scsi_target_reap(last);
 }
 EXPORT_SYMBOL(scsi_remove_target);
 
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index fa1dfaa83e3..31969f2e13c 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2119,7 +2119,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 	switch (nlh->nlmsg_type) {
 	case ISCSI_UEVENT_CREATE_SESSION:
 		err = iscsi_if_create_session(priv, ep, ev,
-					      NETLINK_CB(skb).pid,
+					      NETLINK_CB(skb).portid,
 					      ev->u.c_session.initial_cmdsn,
 					      ev->u.c_session.cmds_max,
 					      ev->u.c_session.queue_depth);
@@ -2132,7 +2132,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 		}
 
 		err = iscsi_if_create_session(priv, ep, ev,
-					NETLINK_CB(skb).pid,
+					NETLINK_CB(skb).portid,
 					ev->u.c_bound_session.initial_cmdsn,
 					ev->u.c_bound_session.cmds_max,
 					ev->u.c_bound_session.queue_depth);
@@ -2969,8 +2969,7 @@ static __init int iscsi_transport_init(void)
 	if (err)
 		goto unregister_conn_class;
 
-	nls = netlink_kernel_create(&init_net, NETLINK_ISCSI,
-				    THIS_MODULE, &cfg);
+	nls = netlink_kernel_create(&init_net, NETLINK_ISCSI, &cfg);
 	if (!nls) {
 		err = -ENOBUFS;
 		goto unregister_session_class;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 4df73e52a4f..12f6fdfc114 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -262,6 +262,28 @@ sd_show_protection_type(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
+sd_store_protection_type(struct device *dev, struct device_attribute *attr,
+			 const char *buf, size_t count)
+{
+	struct scsi_disk *sdkp = to_scsi_disk(dev);
+	unsigned int val;
+	int err;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	err = kstrtouint(buf, 10, &val);
+
+	if (err)
+		return err;
+
+	if (val >= 0 && val <= SD_DIF_TYPE3_PROTECTION)
+		sdkp->protection_type = val;
+
+	return count;
+}
+
+static ssize_t
 sd_show_protection_mode(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
@@ -381,7 +403,8 @@ static struct device_attribute sd_disk_attrs[] = {
 	       sd_store_allow_restart),
 	__ATTR(manage_start_stop, S_IRUGO|S_IWUSR, sd_show_manage_start_stop,
 	       sd_store_manage_start_stop),
-	__ATTR(protection_type, S_IRUGO, sd_show_protection_type, NULL),
+	__ATTR(protection_type, S_IRUGO|S_IWUSR, sd_show_protection_type,
+	       sd_store_protection_type),
 	__ATTR(protection_mode, S_IRUGO, sd_show_protection_mode, NULL),
 	__ATTR(app_tag_own, S_IRUGO, sd_show_app_tag_own, NULL),
 	__ATTR(thin_provisioning, S_IRUGO, sd_show_thin_provisioning, NULL),
@@ -804,9 +827,8 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
 		SCpnt->cmnd[0] = WRITE_6;
 		SCpnt->sc_data_direction = DMA_TO_DEVICE;
 
-		if (blk_integrity_rq(rq) &&
-		    sd_dif_prepare(rq, block, sdp->sector_size) == -EIO)
-			goto out;
+		if (blk_integrity_rq(rq))
+			sd_dif_prepare(rq, block, sdp->sector_size);
 
 	} else if (rq_data_dir(rq) == READ) {
 		SCpnt->cmnd[0] = READ_6;
@@ -1671,34 +1693,42 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 /*
  * Determine whether disk supports Data Integrity Field.
  */
-static void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer)
+static int sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer)
 {
 	struct scsi_device *sdp = sdkp->device;
 	u8 type;
+	int ret = 0;
 
 	if (scsi_device_protection(sdp) == 0 || (buffer[12] & 1) == 0)
-		return;
+		return ret;
 
 	type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */
 
-	if (type == sdkp->protection_type || !sdkp->first_scan)
-		return;
+	if (type > SD_DIF_TYPE3_PROTECTION)
+		ret = -ENODEV;
+	else if (scsi_host_dif_capable(sdp->host, type))
+		ret = 1;
+
+	if (sdkp->first_scan || type != sdkp->protection_type)
+		switch (ret) {
+		case -ENODEV:
+			sd_printk(KERN_ERR, sdkp, "formatted with unsupported" \
+				  " protection type %u. Disabling disk!\n",
+				  type);
+			break;
+		case 1:
+			sd_printk(KERN_NOTICE, sdkp,
+				  "Enabling DIF Type %u protection\n", type);
+			break;
+		case 0:
+			sd_printk(KERN_NOTICE, sdkp,
+				  "Disabling DIF Type %u protection\n", type);
+			break;
+		}
 
 	sdkp->protection_type = type;
 
-	if (type > SD_DIF_TYPE3_PROTECTION) {
-		sd_printk(KERN_ERR, sdkp, "formatted with unsupported "	\
-			  "protection type %u. Disabling disk!\n", type);
-		sdkp->capacity = 0;
-		return;
-	}
-
-	if (scsi_host_dif_capable(sdp->host, type))
-		sd_printk(KERN_NOTICE, sdkp,
-			  "Enabling DIF Type %u protection\n", type);
-	else
-		sd_printk(KERN_NOTICE, sdkp,
-			  "Disabling DIF Type %u protection\n", type);
+	return ret;
 }
 
 static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp,
@@ -1794,7 +1824,10 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
 	sector_size = get_unaligned_be32(&buffer[8]);
 	lba = get_unaligned_be64(&buffer[0]);
 
-	sd_read_protection_type(sdkp, buffer);
+	if (sd_read_protection_type(sdkp, buffer) < 0) {
+		sdkp->capacity = 0;
+		return -ENODEV;
+	}
 
 	if ((sizeof(sdkp->capacity) == 4) && (lba >= 0xffffffffULL)) {
 		sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
@@ -2632,7 +2665,8 @@ static void sd_probe_async(void *data, async_cookie_t cookie)
 	}
 
 	add_disk(gd);
-	sd_dif_config_host(sdkp);
+	if (sdkp->capacity)
+		sd_dif_config_host(sdkp);
 
 	sd_revalidate_disk(gd);
 
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index f703f4827b6..47c52a6d733 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -156,7 +156,7 @@ struct sd_dif_tuple {
 #ifdef CONFIG_BLK_DEV_INTEGRITY
 
 extern void sd_dif_config_host(struct scsi_disk *);
-extern int sd_dif_prepare(struct request *rq, sector_t, unsigned int);
+extern void sd_dif_prepare(struct request *rq, sector_t, unsigned int);
 extern void sd_dif_complete(struct scsi_cmnd *, unsigned int);
 
 #else /* CONFIG_BLK_DEV_INTEGRITY */
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index e52d5bc42bc..04998f36e50 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -366,7 +366,8 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
  *
  * Type 3 does not have a reference tag so no remapping is required.
  */
-int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_sz)
+void sd_dif_prepare(struct request *rq, sector_t hw_sector,
+		    unsigned int sector_sz)
 {
 	const int tuple_sz = sizeof(struct sd_dif_tuple);
 	struct bio *bio;
@@ -378,7 +379,7 @@ int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_s
 	sdkp = rq->bio->bi_bdev->bd_disk->private_data;
 
 	if (sdkp->protection_type == SD_DIF_TYPE3_PROTECTION)
-		return 0;
+		return;
 
 	phys = hw_sector & 0xffffffff;
 
@@ -397,10 +398,9 @@ int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_s
 
 			for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
 
-				if (be32_to_cpu(sdt->ref_tag) != virt)
-					goto error;
+				if (be32_to_cpu(sdt->ref_tag) == virt)
+					sdt->ref_tag = cpu_to_be32(phys);
 
-				sdt->ref_tag = cpu_to_be32(phys);
 				virt++;
 				phys++;
 			}
@@ -410,16 +410,6 @@ int sd_dif_prepare(struct request *rq, sector_t hw_sector, unsigned int sector_s
 
 		bio->bi_flags |= (1 << BIO_MAPPED_INTEGRITY);
 	}
-
-	return 0;
-
-error:
-	kunmap_atomic(sdt);
-	sd_printk(KERN_ERR, sdkp, "%s: virt %u, phys %u, ref %u, app %4x\n",
-		  __func__, virt, phys, be32_to_cpu(sdt->ref_tag),
-		  be16_to_cpu(sdt->app_tag));
-
-	return -EILSEQ;
 }
 
 /*
@@ -463,10 +453,7 @@ void sd_dif_complete(struct scsi_cmnd *scmd, unsigned int good_bytes)
 					return;
 				}
 
-				if (be32_to_cpu(sdt->ref_tag) != phys &&
-				    sdt->app_tag != 0xffff)
-					sdt->ref_tag = 0xffffffff; /* Bad ref */
-				else
+				if (be32_to_cpu(sdt->ref_tag) == phys)
 					sdt->ref_tag = cpu_to_be32(virt);
 
 				virt++;
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index e41998cb098..98156a97c47 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -37,6 +37,7 @@ static const char *verstr = "20101219";
 #include <linux/blkdev.h>
 #include <linux/moduleparam.h>
 #include <linux/cdev.h>
+#include <linux/idr.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
 
@@ -74,17 +75,14 @@ static const char *verstr = "20101219";
 #include "st_options.h"
 #include "st.h"
 
-static DEFINE_MUTEX(st_mutex);
 static int buffer_kbs;
 static int max_sg_segs;
 static int try_direct_io = TRY_DIRECT_IO;
 static int try_rdio = 1;
 static int try_wdio = 1;
 
-static int st_dev_max;
-static int st_nr_dev;
-
-static struct class *st_sysfs_class;
+static struct class st_sysfs_class;
+static struct device_attribute st_dev_attrs[];
 
 MODULE_AUTHOR("Kai Makisara");
 MODULE_DESCRIPTION("SCSI tape (st) driver");
@@ -173,13 +171,9 @@ static int debugging = DEBUG;
    24 bits) */
 #define SET_DENS_AND_BLK 0x10001
 
-static DEFINE_RWLOCK(st_dev_arr_lock);
-
 static int st_fixed_buffer_size = ST_FIXED_BUFFER_SIZE;
 static int st_max_sg_segs = ST_MAX_SG;
 
-static struct scsi_tape **scsi_tapes = NULL;
-
 static int modes_defined;
 
 static int enlarge_buffer(struct st_buffer *, int, int);
@@ -198,7 +192,6 @@ static int st_remove(struct device *);
 
 static int do_create_sysfs_files(void);
 static void do_remove_sysfs_files(void);
-static int do_create_class_files(struct scsi_tape *, int, int);
 
 static struct scsi_driver st_template = {
 	.owner			= THIS_MODULE,
@@ -221,6 +214,10 @@ static void scsi_tape_release(struct kref *);
 #define to_scsi_tape(obj) container_of(obj, struct scsi_tape, kref)
 
 static DEFINE_MUTEX(st_ref_mutex);
+static DEFINE_SPINLOCK(st_index_lock);
+static DEFINE_SPINLOCK(st_use_lock);
+static DEFINE_IDR(st_index_idr);
+
 
 
 #include "osst_detect.h"
@@ -238,10 +235,9 @@ static struct scsi_tape *scsi_tape_get(int dev)
 	struct scsi_tape *STp = NULL;
 
 	mutex_lock(&st_ref_mutex);
-	write_lock(&st_dev_arr_lock);
+	spin_lock(&st_index_lock);
 
-	if (dev < st_dev_max && scsi_tapes != NULL)
-		STp = scsi_tapes[dev];
+	STp = idr_find(&st_index_idr, dev);
 	if (!STp) goto out;
 
 	kref_get(&STp->kref);
@@ -258,7 +254,7 @@ out_put:
 	kref_put(&STp->kref, scsi_tape_release);
 	STp = NULL;
 out:
-	write_unlock(&st_dev_arr_lock);
+	spin_unlock(&st_index_lock);
 	mutex_unlock(&st_ref_mutex);
 	return STp;
 }
@@ -1188,7 +1184,6 @@ static int st_open(struct inode *inode, struct file *filp)
 	int dev = TAPE_NR(inode);
 	char *name;
 
-	mutex_lock(&st_mutex);
 	/*
 	 * We really want to do nonseekable_open(inode, filp); here, but some
 	 * versions of tar incorrectly call lseek on tapes and bail out if that
@@ -1197,24 +1192,22 @@ static int st_open(struct inode *inode, struct file *filp)
 	filp->f_mode &= ~(FMODE_PREAD | FMODE_PWRITE);
 
 	if (!(STp = scsi_tape_get(dev))) {
-		mutex_unlock(&st_mutex);
 		return -ENXIO;
 	}
 
-	write_lock(&st_dev_arr_lock);
 	filp->private_data = STp;
 	name = tape_name(STp);
 
+	spin_lock(&st_use_lock);
 	if (STp->in_use) {
-		write_unlock(&st_dev_arr_lock);
+		spin_unlock(&st_use_lock);
 		scsi_tape_put(STp);
-		mutex_unlock(&st_mutex);
 		DEB( printk(ST_DEB_MSG "%s: Device already in use.\n", name); )
 		return (-EBUSY);
 	}
 
 	STp->in_use = 1;
-	write_unlock(&st_dev_arr_lock);
+	spin_unlock(&st_use_lock);
 	STp->rew_at_close = STp->autorew_dev = (iminor(inode) & 0x80) == 0;
 
 	if (scsi_autopm_get_device(STp->device) < 0) {
@@ -1262,16 +1255,16 @@ static int st_open(struct inode *inode, struct file *filp)
 			retval = (-EIO);
 		goto err_out;
 	}
-	mutex_unlock(&st_mutex);
 	return 0;
 
  err_out:
 	normalize_buffer(STp->buffer);
+	spin_lock(&st_use_lock);
 	STp->in_use = 0;
+	spin_unlock(&st_use_lock);
 	scsi_tape_put(STp);
 	if (resumed)
 		scsi_autopm_put_device(STp->device);
-	mutex_unlock(&st_mutex);
 	return retval;
 
 }
@@ -1403,9 +1396,9 @@ static int st_release(struct inode *inode, struct file *filp)
 		do_door_lock(STp, 0);
 
 	normalize_buffer(STp->buffer);
-	write_lock(&st_dev_arr_lock);
+	spin_lock(&st_use_lock);
 	STp->in_use = 0;
-	write_unlock(&st_dev_arr_lock);
+	spin_unlock(&st_use_lock);
 	scsi_autopm_put_device(STp->device);
 	scsi_tape_put(STp);
 
@@ -3992,16 +3985,98 @@ static const struct file_operations st_fops =
 	.llseek =	noop_llseek,
 };
 
+static int create_one_cdev(struct scsi_tape *tape, int mode, int rew)
+{
+	int i, error;
+	dev_t cdev_devno;
+	struct cdev *cdev;
+	struct device *dev;
+	struct st_modedef *STm = &(tape->modes[mode]);
+	char name[10];
+	int dev_num = tape->index;
+
+	cdev_devno = MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, rew));
+
+	cdev = cdev_alloc();
+	if (!cdev) {
+		pr_err("st%d: out of memory. Device not attached.\n", dev_num);
+		error = -ENOMEM;
+		goto out;
+	}
+	cdev->owner = THIS_MODULE;
+	cdev->ops = &st_fops;
+
+	error = cdev_add(cdev, cdev_devno, 1);
+	if (error) {
+		pr_err("st%d: Can't add %s-rewind mode %d\n", dev_num,
+		       rew ? "non" : "auto", mode);
+		pr_err("st%d: Device not attached.\n", dev_num);
+		goto out_free;
+	}
+	STm->cdevs[rew] = cdev;
+
+	i = mode << (4 - ST_NBR_MODE_BITS);
+	snprintf(name, 10, "%s%s%s", rew ? "n" : "",
+		 tape->disk->disk_name, st_formats[i]);
+
+	dev = device_create(&st_sysfs_class, &tape->device->sdev_gendev,
+			    cdev_devno, &tape->modes[mode], "%s", name);
+	if (IS_ERR(dev)) {
+		pr_err("st%d: device_create failed\n", dev_num);
+		error = PTR_ERR(dev);
+		goto out_free;
+	}
+
+	STm->devs[rew] = dev;
+
+	return 0;
+out_free:
+	cdev_del(STm->cdevs[rew]);
+	STm->cdevs[rew] = NULL;
+out:
+	return error;
+}
+
+static int create_cdevs(struct scsi_tape *tape)
+{
+	int mode, error;
+	for (mode = 0; mode < ST_NBR_MODES; ++mode) {
+		error = create_one_cdev(tape, mode, 0);
+		if (error)
+			return error;
+		error = create_one_cdev(tape, mode, 1);
+		if (error)
+			return error;
+	}
+
+	return sysfs_create_link(&tape->device->sdev_gendev.kobj,
+				 &tape->modes[0].devs[0]->kobj, "tape");
+}
+
+static void remove_cdevs(struct scsi_tape *tape)
+{
+	int mode, rew;
+	sysfs_remove_link(&tape->device->sdev_gendev.kobj, "tape");
+	for (mode = 0; mode < ST_NBR_MODES; mode++) {
+		struct st_modedef *STm = &(tape->modes[mode]);
+		for (rew = 0; rew < 2; rew++) {
+			if (STm->cdevs[rew])
+				cdev_del(STm->cdevs[rew]);
+			if (STm->devs[rew])
+				device_unregister(STm->devs[rew]);
+		}
+	}
+}
+
 static int st_probe(struct device *dev)
 {
 	struct scsi_device *SDp = to_scsi_device(dev);
 	struct gendisk *disk = NULL;
-	struct cdev *cdev = NULL;
 	struct scsi_tape *tpnt = NULL;
 	struct st_modedef *STm;
 	struct st_partstat *STps;
 	struct st_buffer *buffer;
-	int i, j, mode, dev_num, error;
+	int i, dev_num, error;
 	char *stp;
 
 	if (SDp->type != TYPE_TAPE)
@@ -4028,58 +4103,16 @@ static int st_probe(struct device *dev)
 		goto out_buffer_free;
 	}
 
-	write_lock(&st_dev_arr_lock);
-	if (st_nr_dev >= st_dev_max) {
-		struct scsi_tape **tmp_da;
-		int tmp_dev_max;
-
-		tmp_dev_max = max(st_nr_dev * 2, 8);
-		if (tmp_dev_max > ST_MAX_TAPES)
-			tmp_dev_max = ST_MAX_TAPES;
-		if (tmp_dev_max <= st_nr_dev) {
-			write_unlock(&st_dev_arr_lock);
-			printk(KERN_ERR "st: Too many tape devices (max. %d).\n",
-			       ST_MAX_TAPES);
-			goto out_put_disk;
-		}
-
-		tmp_da = kzalloc(tmp_dev_max * sizeof(struct scsi_tape *), GFP_ATOMIC);
-		if (tmp_da == NULL) {
-			write_unlock(&st_dev_arr_lock);
-			printk(KERN_ERR "st: Can't extend device array.\n");
-			goto out_put_disk;
-		}
-
-		if (scsi_tapes != NULL) {
-			memcpy(tmp_da, scsi_tapes,
-			       st_dev_max * sizeof(struct scsi_tape *));
-			kfree(scsi_tapes);
-		}
-		scsi_tapes = tmp_da;
-
-		st_dev_max = tmp_dev_max;
-	}
-
-	for (i = 0; i < st_dev_max; i++)
-		if (scsi_tapes[i] == NULL)
-			break;
-	if (i >= st_dev_max)
-		panic("scsi_devices corrupt (st)");
-
 	tpnt = kzalloc(sizeof(struct scsi_tape), GFP_ATOMIC);
 	if (tpnt == NULL) {
-		write_unlock(&st_dev_arr_lock);
 		printk(KERN_ERR "st: Can't allocate device descriptor.\n");
 		goto out_put_disk;
 	}
 	kref_init(&tpnt->kref);
 	tpnt->disk = disk;
-	sprintf(disk->disk_name, "st%d", i);
 	disk->private_data = &tpnt->driver;
 	disk->queue = SDp->request_queue;
 	tpnt->driver = &st_template;
-	scsi_tapes[i] = tpnt;
-	dev_num = i;
 
 	tpnt->device = SDp;
 	if (SDp->scsi_level <= 2)
@@ -4125,6 +4158,7 @@ static int st_probe(struct device *dev)
 		STm->default_compression = ST_DONT_TOUCH;
 		STm->default_blksize = (-1);	/* No forced size */
 		STm->default_density = (-1);	/* No forced density */
+		STm->tape = tpnt;
 	}
 
 	for (i = 0; i < ST_NBR_PARTITIONS; i++) {
@@ -4144,38 +4178,34 @@ static int st_probe(struct device *dev)
 	    tpnt->blksize_changed = 0;
 	mutex_init(&tpnt->lock);
 
-	st_nr_dev++;
-	write_unlock(&st_dev_arr_lock);
+	if (!idr_pre_get(&st_index_idr, GFP_KERNEL)) {
+		pr_warn("st: idr expansion failed\n");
+		error = -ENOMEM;
+		goto out_put_disk;
+	}
 
-	for (mode = 0; mode < ST_NBR_MODES; ++mode) {
-		STm = &(tpnt->modes[mode]);
-		for (j=0; j < 2; j++) {
-			cdev = cdev_alloc();
-			if (!cdev) {
-				printk(KERN_ERR
-				       "st%d: out of memory. Device not attached.\n",
-				       dev_num);
-				goto out_free_tape;
-			}
-			cdev->owner = THIS_MODULE;
-			cdev->ops = &st_fops;
-
-			error = cdev_add(cdev,
-					 MKDEV(SCSI_TAPE_MAJOR, TAPE_MINOR(dev_num, mode, j)),
-					 1);
-			if (error) {
-				printk(KERN_ERR "st%d: Can't add %s-rewind mode %d\n",
-				       dev_num, j ? "non" : "auto", mode);
-				printk(KERN_ERR "st%d: Device not attached.\n", dev_num);
-				goto out_free_tape;
-			}
-			STm->cdevs[j] = cdev;
+	spin_lock(&st_index_lock);
+	error = idr_get_new(&st_index_idr, tpnt, &dev_num);
+	spin_unlock(&st_index_lock);
+	if (error) {
+		pr_warn("st: idr allocation failed: %d\n", error);
+		goto out_put_disk;
+	}
 
-		}
-		error = do_create_class_files(tpnt, dev_num, mode);
-		if (error)
-			goto out_free_tape;
+	if (dev_num > ST_MAX_TAPES) {
+		pr_err("st: Too many tape devices (max. %d).\n", ST_MAX_TAPES);
+		goto out_put_index;
 	}
+
+	tpnt->index = dev_num;
+	sprintf(disk->disk_name, "st%d", dev_num);
+
+	dev_set_drvdata(dev, tpnt);
+
+
+	error = create_cdevs(tpnt);
+	if (error)
+		goto out_remove_devs;
 	scsi_autopm_put_device(SDp);
 
 	sdev_printk(KERN_NOTICE, SDp,
@@ -4186,28 +4216,12 @@ static int st_probe(struct device *dev)
 
 	return 0;
 
-out_free_tape:
-	for (mode=0; mode < ST_NBR_MODES; mode++) {
-		STm = &(tpnt->modes[mode]);
-		sysfs_remove_link(&tpnt->device->sdev_gendev.kobj,
-				  "tape");
-		for (j=0; j < 2; j++) {
-			if (STm->cdevs[j]) {
-				if (cdev == STm->cdevs[j])
-					cdev = NULL;
-					device_destroy(st_sysfs_class,
-						       MKDEV(SCSI_TAPE_MAJOR,
-							     TAPE_MINOR(i, mode, j)));
-				cdev_del(STm->cdevs[j]);
-			}
-		}
-	}
-	if (cdev)
-		cdev_del(cdev);
-	write_lock(&st_dev_arr_lock);
-	scsi_tapes[dev_num] = NULL;
-	st_nr_dev--;
-	write_unlock(&st_dev_arr_lock);
+out_remove_devs:
+	remove_cdevs(tpnt);
+out_put_index:
+	spin_lock(&st_index_lock);
+	idr_remove(&st_index_idr, dev_num);
+	spin_unlock(&st_index_lock);
 out_put_disk:
 	put_disk(disk);
 	kfree(tpnt);
@@ -4220,38 +4234,18 @@ out:
 
 static int st_remove(struct device *dev)
 {
-	struct scsi_device *SDp = to_scsi_device(dev);
-	struct scsi_tape *tpnt;
-	int i, j, mode;
-
-	scsi_autopm_get_device(SDp);
-	write_lock(&st_dev_arr_lock);
-	for (i = 0; i < st_dev_max; i++) {
-		tpnt = scsi_tapes[i];
-		if (tpnt != NULL && tpnt->device == SDp) {
-			scsi_tapes[i] = NULL;
-			st_nr_dev--;
-			write_unlock(&st_dev_arr_lock);
-			sysfs_remove_link(&tpnt->device->sdev_gendev.kobj,
-					  "tape");
-			for (mode = 0; mode < ST_NBR_MODES; ++mode) {
-				for (j=0; j < 2; j++) {
-					device_destroy(st_sysfs_class,
-						       MKDEV(SCSI_TAPE_MAJOR,
-							     TAPE_MINOR(i, mode, j)));
-					cdev_del(tpnt->modes[mode].cdevs[j]);
-					tpnt->modes[mode].cdevs[j] = NULL;
-				}
-			}
+	struct scsi_tape *tpnt = dev_get_drvdata(dev);
+	int index = tpnt->index;
 
-			mutex_lock(&st_ref_mutex);
-			kref_put(&tpnt->kref, scsi_tape_release);
-			mutex_unlock(&st_ref_mutex);
-			return 0;
-		}
-	}
+	scsi_autopm_get_device(to_scsi_device(dev));
+	remove_cdevs(tpnt);
 
-	write_unlock(&st_dev_arr_lock);
+	mutex_lock(&st_ref_mutex);
+	kref_put(&tpnt->kref, scsi_tape_release);
+	mutex_unlock(&st_ref_mutex);
+	spin_lock(&st_index_lock);
+	idr_remove(&st_index_idr, index);
+	spin_unlock(&st_index_lock);
 	return 0;
 }
 
@@ -4283,6 +4277,11 @@ static void scsi_tape_release(struct kref *kref)
 	return;
 }
 
+static struct class st_sysfs_class = {
+	.name = "scsi_tape",
+	.dev_attrs = st_dev_attrs,
+};
+
 static int __init init_st(void)
 {
 	int err;
@@ -4292,10 +4291,10 @@ static int __init init_st(void)
 	printk(KERN_INFO "st: Version %s, fixed bufsize %d, s/g segs %d\n",
 		verstr, st_fixed_buffer_size, st_max_sg_segs);
 
-	st_sysfs_class = class_create(THIS_MODULE, "scsi_tape");
-	if (IS_ERR(st_sysfs_class)) {
-		printk(KERN_ERR "Unable create sysfs class for SCSI tapes\n");
-		return PTR_ERR(st_sysfs_class);
+	err = class_register(&st_sysfs_class);
+	if (err) {
+		pr_err("Unable register sysfs class for SCSI tapes\n");
+		return err;
 	}
 
 	err = register_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
@@ -4322,7 +4321,7 @@ err_chrdev:
 	unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
 				 ST_MAX_TAPE_ENTRIES);
 err_class:
-	class_destroy(st_sysfs_class);
+	class_unregister(&st_sysfs_class);
 	return err;
 }
 
@@ -4332,8 +4331,7 @@ static void __exit exit_st(void)
 	scsi_unregister_driver(&st_template.gendrv);
 	unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
 				 ST_MAX_TAPE_ENTRIES);
-	class_destroy(st_sysfs_class);
-	kfree(scsi_tapes);
+	class_unregister(&st_sysfs_class);
 	printk(KERN_INFO "st: Unloaded.\n");
 }
 
@@ -4405,10 +4403,9 @@ static void do_remove_sysfs_files(void)
 	driver_remove_file(sysfs, &driver_attr_try_direct_io);
 }
 
-
 /* The sysfs simple class interface */
 static ssize_t
-st_defined_show(struct device *dev, struct device_attribute *attr, char *buf)
+defined_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct st_modedef *STm = dev_get_drvdata(dev);
 	ssize_t l = 0;
@@ -4417,10 +4414,9 @@ st_defined_show(struct device *dev, struct device_attribute *attr, char *buf)
 	return l;
 }
 
-DEVICE_ATTR(defined, S_IRUGO, st_defined_show, NULL);
-
 static ssize_t
-st_defblk_show(struct device *dev, struct device_attribute *attr, char *buf)
+default_blksize_show(struct device *dev, struct device_attribute *attr,
+		     char *buf)
 {
 	struct st_modedef *STm = dev_get_drvdata(dev);
 	ssize_t l = 0;
@@ -4429,10 +4425,10 @@ st_defblk_show(struct device *dev, struct device_attribute *attr, char *buf)
 	return l;
 }
 
-DEVICE_ATTR(default_blksize, S_IRUGO, st_defblk_show, NULL);
 
 static ssize_t
-st_defdensity_show(struct device *dev, struct device_attribute *attr, char *buf)
+default_density_show(struct device *dev, struct device_attribute *attr,
+		     char *buf)
 {
 	struct st_modedef *STm = dev_get_drvdata(dev);
 	ssize_t l = 0;
@@ -4443,11 +4439,9 @@ st_defdensity_show(struct device *dev, struct device_attribute *attr, char *buf)
 	return l;
 }
 
-DEVICE_ATTR(default_density, S_IRUGO, st_defdensity_show, NULL);
-
 static ssize_t
-st_defcompression_show(struct device *dev, struct device_attribute *attr,
-		       char *buf)
+default_compression_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
 {
 	struct st_modedef *STm = dev_get_drvdata(dev);
 	ssize_t l = 0;
@@ -4456,28 +4450,14 @@ st_defcompression_show(struct device *dev, struct device_attribute *attr,
 	return l;
 }
 
-DEVICE_ATTR(default_compression, S_IRUGO, st_defcompression_show, NULL);
-
 static ssize_t
-st_options_show(struct device *dev, struct device_attribute *attr, char *buf)
+options_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct st_modedef *STm = dev_get_drvdata(dev);
-	struct scsi_tape *STp;
-	int i, j, options;
+	struct scsi_tape *STp = STm->tape;
+	int options;
 	ssize_t l = 0;
 
-	for (i=0; i < st_dev_max; i++) {
-		for (j=0; j < ST_NBR_MODES; j++)
-			if (&scsi_tapes[i]->modes[j] == STm)
-				break;
-		if (j < ST_NBR_MODES)
-			break;
-	}
-	if (i == st_dev_max)
-		return 0;  /* should never happen */
-
-	STp = scsi_tapes[i];
-
 	options = STm->do_buffer_writes ? MT_ST_BUFFER_WRITES : 0;
 	options |= STm->do_async_writes ? MT_ST_ASYNC_WRITES : 0;
 	options |= STm->do_read_ahead ? MT_ST_READ_AHEAD : 0;
@@ -4498,66 +4478,14 @@ st_options_show(struct device *dev, struct device_attribute *attr, char *buf)
 	return l;
 }
 
-DEVICE_ATTR(options, S_IRUGO, st_options_show, NULL);
-
-static int do_create_class_files(struct scsi_tape *STp, int dev_num, int mode)
-{
-	int i, rew, error;
-	char name[10];
-	struct device *st_class_member;
-
-	for (rew=0; rew < 2; rew++) {
-		/* Make sure that the minor numbers corresponding to the four
-		   first modes always get the same names */
-		i = mode << (4 - ST_NBR_MODE_BITS);
-		snprintf(name, 10, "%s%s%s", rew ? "n" : "",
-			 STp->disk->disk_name, st_formats[i]);
-		st_class_member =
-			device_create(st_sysfs_class, &STp->device->sdev_gendev,
-				      MKDEV(SCSI_TAPE_MAJOR,
-					    TAPE_MINOR(dev_num, mode, rew)),
-				      &STp->modes[mode], "%s", name);
-		if (IS_ERR(st_class_member)) {
-			printk(KERN_WARNING "st%d: device_create failed\n",
-			       dev_num);
-			error = PTR_ERR(st_class_member);
-			goto out;
-		}
-
-		error = device_create_file(st_class_member,
-					   &dev_attr_defined);
-		if (error) goto out;
-		error = device_create_file(st_class_member,
-					   &dev_attr_default_blksize);
-		if (error) goto out;
-		error = device_create_file(st_class_member,
-					   &dev_attr_default_density);
-		if (error) goto out;
-		error = device_create_file(st_class_member,
-					   &dev_attr_default_compression);
-		if (error) goto out;
-		error = device_create_file(st_class_member,
-					   &dev_attr_options);
-		if (error) goto out;
-
-		if (mode == 0 && rew == 0) {
-			error = sysfs_create_link(&STp->device->sdev_gendev.kobj,
-						  &st_class_member->kobj,
-						  "tape");
-			if (error) {
-				printk(KERN_ERR
-				       "st%d: Can't create sysfs link from SCSI device.\n",
-				       dev_num);
-				goto out;
-			}
-		}
-	}
-
-	return 0;
-
-out:
-	return error;
-}
+static struct device_attribute st_dev_attrs[] = {
+	__ATTR_RO(defined),
+	__ATTR_RO(default_blksize),
+	__ATTR_RO(default_density),
+	__ATTR_RO(default_compression),
+	__ATTR_RO(options),
+	__ATTR_NULL,
+};
 
 /* The following functions may be useful for a larger audience. */
 static int sgl_map_user_pages(struct st_buffer *STbp,
diff --git a/drivers/scsi/st.h b/drivers/scsi/st.h
index b548923785e..f3eee0f9f40 100644
--- a/drivers/scsi/st.h
+++ b/drivers/scsi/st.h
@@ -66,6 +66,8 @@ struct st_modedef {
 	unsigned char default_compression;	/* 0 = don't touch, etc */
 	short default_density;	/* Forced density, -1 = no value */
 	int default_blksize;	/* Forced blocksize, -1 = no value */
+	struct scsi_tape *tape;
+	struct device *devs[2];  /* Auto-rewind and non-rewind devices */
 	struct cdev *cdevs[2];  /* Auto-rewind and non-rewind devices */
 };
 
@@ -76,7 +78,7 @@ struct st_modedef {
 #define ST_MODE_SHIFT (7 - ST_NBR_MODE_BITS)
 #define ST_MODE_MASK ((ST_NBR_MODES - 1) << ST_MODE_SHIFT)
 
-#define ST_MAX_TAPES 128
+#define ST_MAX_TAPES (1 << (20 - (ST_NBR_MODE_BITS + 1)))
 #define ST_MAX_TAPE_ENTRIES  (ST_MAX_TAPES << (ST_NBR_MODE_BITS + 1))
 
 /* The status related to each partition */
@@ -99,6 +101,7 @@ struct scsi_tape {
 	struct mutex lock;	/* For serialization */
 	struct completion wait;	/* For SCSI commands */
 	struct st_buffer *buffer;
+	int index;
 
 	/* Drive characteristics */
 	unsigned char omit_blklims;
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 36d1ed7817e..e2b8e68b57e 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -2117,7 +2117,7 @@ static struct pci_device_id sym2_id_table[] __devinitdata = {
 
 MODULE_DEVICE_TABLE(pci, sym2_id_table);
 
-static struct pci_error_handlers sym2_err_handler = {
+static const struct pci_error_handlers sym2_err_handler = {
 	.error_detected	= sym2_io_error_detected,
 	.mmio_enabled	= sym2_io_slot_dump,
 	.slot_reset	= sym2_io_slot_reset,
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index c7030fbee79..3e79a2f0004 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -331,7 +331,7 @@ static void virtscsi_map_sgl(struct scatterlist *sg, unsigned int *p_idx,
 	int i;
 
 	for_each_sg(table->sgl, sg_elem, table->nents, i)
-		sg_set_buf(&sg[idx++], sg_virt(sg_elem), sg_elem->length);
+		sg[idx++] = *sg_elem;
 
 	*p_idx = idx;
 }
diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 4411d422440..20b3a483c2c 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -295,7 +295,7 @@ static void ll_adapter_reset(const struct pvscsi_adapter *adapter)
 
 static void ll_bus_reset(const struct pvscsi_adapter *adapter)
 {
-	dev_dbg(pvscsi_dev(adapter), "Reseting bus on %p\n", adapter);
+	dev_dbg(pvscsi_dev(adapter), "Resetting bus on %p\n", adapter);
 
 	pvscsi_write_cmd_desc(adapter, PVSCSI_CMD_RESET_BUS, NULL, 0);
 }
@@ -304,7 +304,7 @@ static void ll_device_reset(const struct pvscsi_adapter *adapter, u32 target)
 {
 	struct PVSCSICmdDescResetDevice cmd = { 0 };
 
-	dev_dbg(pvscsi_dev(adapter), "Reseting device: target=%u\n", target);
+	dev_dbg(pvscsi_dev(adapter), "Resetting device: target=%u\n", target);
 
 	cmd.target = target;
 
diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
index 2374468615e..8f32a1323a7 100644
--- a/drivers/sh/intc/core.c
+++ b/drivers/sh/intc/core.c
@@ -324,8 +324,16 @@ int __init register_intc_controller(struct intc_desc *desc)
 
 		res = irq_create_identity_mapping(d->domain, irq);
 		if (unlikely(res)) {
-			pr_err("can't get irq_desc for %d\n", irq);
-			continue;
+			if (res == -EEXIST) {
+				res = irq_domain_associate(d->domain, irq, irq);
+				if (unlikely(res)) {
+					pr_err("domain association failure\n");
+					continue;
+				}
+			} else {
+				pr_err("can't identity map IRQ %d\n", irq);
+				continue;
+			}
 		}
 
 		intc_irq_xlate_set(irq, vect->enum_id, d);
@@ -345,8 +353,19 @@ int __init register_intc_controller(struct intc_desc *desc)
 			 */
 			res = irq_create_identity_mapping(d->domain, irq2);
 			if (unlikely(res)) {
-				pr_err("can't get irq_desc for %d\n", irq2);
-				continue;
+				if (res == -EEXIST) {
+					res = irq_domain_associate(d->domain,
+								   irq2, irq2);
+					if (unlikely(res)) {
+						pr_err("domain association "
+						       "failure\n");
+						continue;
+					}
+				} else {
+					pr_err("can't identity map IRQ %d\n",
+					       irq);
+					continue;
+				}
 			}
 
 			vect2->enum_id = 0;
diff --git a/drivers/sh/pfc/gpio.c b/drivers/sh/pfc/gpio.c
index 62bca98474a..038fa071382 100644
--- a/drivers/sh/pfc/gpio.c
+++ b/drivers/sh/pfc/gpio.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/pinctrl/consumer.h>
+#include <linux/sh_pfc.h>
 
 struct sh_pfc_chip {
 	struct sh_pfc		*pfc;
diff --git a/drivers/sh/pfc/pinctrl.c b/drivers/sh/pfc/pinctrl.c
index 2804eaae804..0646bf6e788 100644
--- a/drivers/sh/pfc/pinctrl.c
+++ b/drivers/sh/pfc/pinctrl.c
@@ -208,10 +208,13 @@ static int sh_pfc_gpio_request_enable(struct pinctrl_dev *pctldev,
 
 		break;
 	case PINMUX_TYPE_GPIO:
+	case PINMUX_TYPE_INPUT:
+	case PINMUX_TYPE_OUTPUT:
 		break;
 	default:
 		pr_err("Unsupported mux type (%d), bailing...\n", pinmux_type);
-		return -ENOTSUPP;
+		ret = -ENOTSUPP;
+		goto err;
 	}
 
 	ret = 0;
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 5f84b5563c2..ecc31a1f73f 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -325,6 +325,12 @@ config SPI_S3C64XX
 	help
 	  SPI driver for Samsung S3C64XX and newer SoCs.
 
+config SPI_SC18IS602
+	tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
+	depends on I2C
+	help
+	  SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
+
 config SPI_SH_MSIOF
 	tristate "SuperH MSIOF SPI controller"
 	depends on SUPERH && HAVE_CLK
@@ -364,11 +370,12 @@ config SPI_STMP3XXX
 	help
 	  SPI driver for Freescale STMP37xx/378x SoC SSP interface
 
-config SPI_TEGRA
-	tristate "Nvidia Tegra SPI controller"
-	depends on ARCH_TEGRA && (TEGRA_SYSTEM_DMA || TEGRA20_APB_DMA)
+config SPI_MXS
+	tristate "Freescale MXS SPI controller"
+	depends on ARCH_MXS
+	select STMP_DEVICE
 	help
-	  SPI driver for NVidia Tegra SoCs
+	  SPI driver for Freescale MXS devices.
 
 config SPI_TI_SSP
 	tristate "TI Sequencer Serial Port - SPI Support"
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 3920dcf4c74..22fd3a7251b 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_SPI_LM70_LLP)		+= spi-lm70llp.o
 obj-$(CONFIG_SPI_MPC512x_PSC)		+= spi-mpc512x-psc.o
 obj-$(CONFIG_SPI_MPC52xx_PSC)		+= spi-mpc52xx-psc.o
 obj-$(CONFIG_SPI_MPC52xx)		+= spi-mpc52xx.o
+obj-$(CONFIG_SPI_MXS)			+= spi-mxs.o
 obj-$(CONFIG_SPI_NUC900)		+= spi-nuc900.o
 obj-$(CONFIG_SPI_OC_TINY)		+= spi-oc-tiny.o
 obj-$(CONFIG_SPI_OMAP_UWIRE)		+= spi-omap-uwire.o
@@ -51,13 +52,13 @@ obj-$(CONFIG_SPI_S3C24XX)		+= spi-s3c24xx-hw.o
 spi-s3c24xx-hw-y			:= spi-s3c24xx.o
 spi-s3c24xx-hw-$(CONFIG_SPI_S3C24XX_FIQ) += spi-s3c24xx-fiq.o
 obj-$(CONFIG_SPI_S3C64XX)		+= spi-s3c64xx.o
+obj-$(CONFIG_SPI_SC18IS602)		+= spi-sc18is602.o
 obj-$(CONFIG_SPI_SH)			+= spi-sh.o
 obj-$(CONFIG_SPI_SH_HSPI)		+= spi-sh-hspi.o
 obj-$(CONFIG_SPI_SH_MSIOF)		+= spi-sh-msiof.o
 obj-$(CONFIG_SPI_SH_SCI)		+= spi-sh-sci.o
 obj-$(CONFIG_SPI_SIRF)		+= spi-sirf.o
 obj-$(CONFIG_SPI_STMP3XXX)		+= spi-stmp.o
-obj-$(CONFIG_SPI_TEGRA)			+= spi-tegra.o
 obj-$(CONFIG_SPI_TI_SSP)		+= spi-ti-ssp.o
 obj-$(CONFIG_SPI_TLE62X0)		+= spi-tle62x0.o
 obj-$(CONFIG_SPI_TOPCLIFF_PCH)		+= spi-topcliff-pch.o
diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index c00d00e96ee..f1fec2a19d1 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -307,8 +307,6 @@ static const struct of_device_id altera_spi_match[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, altera_spi_match);
-#else /* CONFIG_OF */
-#define altera_spi_match NULL
 #endif /* CONFIG_OF */
 
 static struct platform_driver altera_spi_driver = {
@@ -318,7 +316,7 @@ static struct platform_driver altera_spi_driver = {
 		.name = DRV_NAME,
 		.owner = THIS_MODULE,
 		.pm = NULL,
-		.of_match_table = altera_spi_match,
+		.of_match_table = of_match_ptr(altera_spi_match),
 	},
 };
 module_platform_driver(altera_spi_driver);
diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index 5784c879961..4de66d1cfe5 100644
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -475,7 +475,7 @@ static irqreturn_t au1550_spi_dma_irq_callback(struct au1550_spi *hw)
 		/*
 		 * due to an spi error we consider transfer as done,
 		 * so mask all events until before next transfer start
-		 * and stop the possibly running dma immediatelly
+		 * and stop the possibly running dma immediately
 		 */
 		au1550_spi_mask_ack_all(hw);
 		au1xxx_dbdma_stop(hw->dma_rx_ch);
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 6e25ef1bce9..a9f4049c676 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -47,6 +47,8 @@ struct bcm63xx_spi {
 	/* Platform data */
 	u32			speed_hz;
 	unsigned		fifo_size;
+	unsigned int		msg_type_shift;
+	unsigned int		msg_ctl_width;
 
 	/* Data buffers */
 	const unsigned char	*tx_ptr;
@@ -221,13 +223,20 @@ static unsigned int bcm63xx_txrx_bufs(struct spi_device *spi,
 	msg_ctl = (t->len << SPI_BYTE_CNT_SHIFT);
 
 	if (t->rx_buf && t->tx_buf)
-		msg_ctl |= (SPI_FD_RW << SPI_MSG_TYPE_SHIFT);
+		msg_ctl |= (SPI_FD_RW << bs->msg_type_shift);
 	else if (t->rx_buf)
-		msg_ctl |= (SPI_HD_R << SPI_MSG_TYPE_SHIFT);
+		msg_ctl |= (SPI_HD_R << bs->msg_type_shift);
 	else if (t->tx_buf)
-		msg_ctl |= (SPI_HD_W << SPI_MSG_TYPE_SHIFT);
-
-	bcm_spi_writew(bs, msg_ctl, SPI_MSG_CTL);
+		msg_ctl |= (SPI_HD_W << bs->msg_type_shift);
+
+	switch (bs->msg_ctl_width) {
+	case 8:
+		bcm_spi_writeb(bs, msg_ctl, SPI_MSG_CTL);
+		break;
+	case 16:
+		bcm_spi_writew(bs, msg_ctl, SPI_MSG_CTL);
+		break;
+	}
 
 	/* Issue the transfer */
 	cmd = SPI_CMD_START_IMMEDIATE;
@@ -406,9 +415,21 @@ static int __devinit bcm63xx_spi_probe(struct platform_device *pdev)
 	master->transfer_one_message = bcm63xx_spi_transfer_one;
 	master->mode_bits = MODEBITS;
 	bs->speed_hz = pdata->speed_hz;
+	bs->msg_type_shift = pdata->msg_type_shift;
+	bs->msg_ctl_width = pdata->msg_ctl_width;
 	bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA));
 	bs->rx_io = (const u8 *)(bs->regs + bcm63xx_spireg(SPI_RX_DATA));
 
+	switch (bs->msg_ctl_width) {
+	case 8:
+	case 16:
+		break;
+	default:
+		dev_err(dev, "unsupported MSG_CTL width: %d\n",
+			 bs->msg_ctl_width);
+		goto out_clk_disable;
+	}
+
 	/* Initialize hardware */
 	clk_enable(bs->clk);
 	bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS);
@@ -438,7 +459,7 @@ out:
 
 static int __devexit bcm63xx_spi_remove(struct platform_device *pdev)
 {
-	struct spi_master *master = platform_get_drvdata(pdev);
+	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct bcm63xx_spi *bs = spi_master_get_devdata(master);
 
 	spi_unregister_master(master);
@@ -452,6 +473,8 @@ static int __devexit bcm63xx_spi_remove(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, 0);
 
+	spi_master_put(master);
+
 	return 0;
 }
 
diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c
index 1fe51198a62..6555ecd0730 100644
--- a/drivers/spi/spi-bfin-sport.c
+++ b/drivers/spi/spi-bfin-sport.c
@@ -467,7 +467,7 @@ bfin_sport_spi_pump_transfers(unsigned long data)
 		dev_dbg(drv_data->dev, "IO write error!\n");
 		drv_data->state = ERROR_STATE;
 	} else {
-		/* Update total byte transfered */
+		/* Update total byte transferred */
 		message->actual_length += transfer->len;
 		/* Move to next transfer of this msg */
 		drv_data->state = bfin_sport_spi_next_transfer(drv_data);
diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index b2d4b9e4e01..764bfee7592 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -533,7 +533,6 @@ static int __devexit mcfqspi_remove(struct platform_device *pdev)
 	iounmap(mcfqspi->iobase);
 	release_mem_region(res->start, resource_size(res));
 	spi_unregister_master(master);
-	spi_master_put(master);
 
 	return 0;
 }
@@ -541,7 +540,7 @@ static int __devexit mcfqspi_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int mcfqspi_suspend(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
 
 	spi_master_suspend(master);
@@ -553,7 +552,7 @@ static int mcfqspi_suspend(struct device *dev)
 
 static int mcfqspi_resume(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
 
 	spi_master_resume(master);
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 9b2901feaf7..3afe2f4f5b8 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -30,7 +30,7 @@
 #include <linux/spi/spi_bitbang.h>
 #include <linux/slab.h>
 
-#include <mach/spi.h>
+#include <linux/platform_data/spi-davinci.h>
 #include <mach/edma.h>
 
 #define SPI_NO_RESOURCE		((resource_size_t)-1)
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index f97f1d24880..3a219599612 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -31,8 +31,8 @@
 #include <linux/scatterlist.h>
 #include <linux/spi/spi.h>
 
-#include <mach/dma.h>
-#include <mach/ep93xx_spi.h>
+#include <linux/platform_data/dma-ep93xx.h>
+#include <linux/platform_data/spi-ep93xx.h>
 
 #define SSPCR0			0x0000
 #define SSPCR0_MODE_SHIFT	6
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 0b56cfc71fa..a2b50c516b3 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -22,6 +22,8 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
@@ -46,6 +48,7 @@ struct spi_gpio {
 	struct spi_bitbang		bitbang;
 	struct spi_gpio_platform_data	pdata;
 	struct platform_device		*pdev;
+	int				cs_gpios[0];
 };
 
 /*----------------------------------------------------------------------*/
@@ -89,15 +92,21 @@ struct spi_gpio {
 
 /*----------------------------------------------------------------------*/
 
-static inline const struct spi_gpio_platform_data * __pure
-spi_to_pdata(const struct spi_device *spi)
+static inline struct spi_gpio * __pure
+spi_to_spi_gpio(const struct spi_device *spi)
 {
 	const struct spi_bitbang	*bang;
-	const struct spi_gpio		*spi_gpio;
+	struct spi_gpio			*spi_gpio;
 
 	bang = spi_master_get_devdata(spi->master);
 	spi_gpio = container_of(bang, struct spi_gpio, bitbang);
-	return &spi_gpio->pdata;
+	return spi_gpio;
+}
+
+static inline struct spi_gpio_platform_data * __pure
+spi_to_pdata(const struct spi_device *spi)
+{
+	return &spi_to_spi_gpio(spi)->pdata;
 }
 
 /* this is #defined to avoid unused-variable warnings when inlining */
@@ -210,7 +219,8 @@ static u32 spi_gpio_spec_txrx_word_mode3(struct spi_device *spi,
 
 static void spi_gpio_chipselect(struct spi_device *spi, int is_active)
 {
-	unsigned long cs = (unsigned long) spi->controller_data;
+	struct spi_gpio *spi_gpio = spi_to_spi_gpio(spi);
+	unsigned int cs = spi_gpio->cs_gpios[spi->chip_select];
 
 	/* set initial clock polarity */
 	if (is_active)
@@ -224,12 +234,27 @@ static void spi_gpio_chipselect(struct spi_device *spi, int is_active)
 
 static int spi_gpio_setup(struct spi_device *spi)
 {
-	unsigned long	cs = (unsigned long) spi->controller_data;
-	int		status = 0;
+	unsigned int		cs;
+	int			status = 0;
+	struct spi_gpio		*spi_gpio = spi_to_spi_gpio(spi);
+	struct device_node	*np = spi->master->dev.of_node;
 
 	if (spi->bits_per_word > 32)
 		return -EINVAL;
 
+	if (np) {
+		/*
+		 * In DT environments, the CS GPIOs have already been
+		 * initialized from the "cs-gpios" property of the node.
+		 */
+		cs = spi_gpio->cs_gpios[spi->chip_select];
+	} else {
+		/*
+		 * ... otherwise, take it from spi->controller_data
+		 */
+		cs = (unsigned int) spi->controller_data;
+	}
+
 	if (!spi->controller_state) {
 		if (cs != SPI_GPIO_NO_CHIPSELECT) {
 			status = gpio_request(cs, dev_name(&spi->dev));
@@ -239,8 +264,12 @@ static int spi_gpio_setup(struct spi_device *spi)
 					!(spi->mode & SPI_CS_HIGH));
 		}
 	}
-	if (!status)
+	if (!status) {
 		status = spi_bitbang_setup(spi);
+		/* in case it was initialized from static board data */
+		spi_gpio->cs_gpios[spi->chip_select] = cs;
+	}
+
 	if (status) {
 		if (!spi->controller_state && cs != SPI_GPIO_NO_CHIPSELECT)
 			gpio_free(cs);
@@ -250,7 +279,8 @@ static int spi_gpio_setup(struct spi_device *spi)
 
 static void spi_gpio_cleanup(struct spi_device *spi)
 {
-	unsigned long	cs = (unsigned long) spi->controller_data;
+	struct spi_gpio *spi_gpio = spi_to_spi_gpio(spi);
+	unsigned int cs = spi_gpio->cs_gpios[spi->chip_select];
 
 	if (cs != SPI_GPIO_NO_CHIPSELECT)
 		gpio_free(cs);
@@ -313,6 +343,55 @@ done:
 	return value;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id spi_gpio_dt_ids[] = {
+	{ .compatible = "spi-gpio" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, spi_gpio_dt_ids);
+
+static int spi_gpio_probe_dt(struct platform_device *pdev)
+{
+	int ret;
+	u32 tmp;
+	struct spi_gpio_platform_data	*pdata;
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *of_id =
+			of_match_device(spi_gpio_dt_ids, &pdev->dev);
+
+	if (!of_id)
+		return 0;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	pdata->sck = of_get_named_gpio(np, "gpio-sck", 0);
+	pdata->miso = of_get_named_gpio(np, "gpio-miso", 0);
+	pdata->mosi = of_get_named_gpio(np, "gpio-mosi", 0);
+
+	ret = of_property_read_u32(np, "num-chipselects", &tmp);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "num-chipselects property not found\n");
+		goto error_free;
+	}
+
+	pdata->num_chipselect = tmp;
+	pdev->dev.platform_data = pdata;
+
+	return 1;
+
+error_free:
+	devm_kfree(&pdev->dev, pdata);
+	return ret;
+}
+#else
+static inline int spi_gpio_probe_dt(struct platform_device *pdev)
+{
+	return 0;
+}
+#endif
+
 static int __devinit spi_gpio_probe(struct platform_device *pdev)
 {
 	int				status;
@@ -320,6 +399,13 @@ static int __devinit spi_gpio_probe(struct platform_device *pdev)
 	struct spi_gpio			*spi_gpio;
 	struct spi_gpio_platform_data	*pdata;
 	u16 master_flags = 0;
+	bool use_of = 0;
+
+	status = spi_gpio_probe_dt(pdev);
+	if (status < 0)
+		return status;
+	if (status > 0)
+		use_of = 1;
 
 	pdata = pdev->dev.platform_data;
 #ifdef GENERIC_BITBANG
@@ -331,7 +417,8 @@ static int __devinit spi_gpio_probe(struct platform_device *pdev)
 	if (status < 0)
 		return status;
 
-	master = spi_alloc_master(&pdev->dev, sizeof *spi_gpio);
+	master = spi_alloc_master(&pdev->dev, sizeof(*spi_gpio) +
+					(sizeof(int) * SPI_N_CHIPSEL));
 	if (!master) {
 		status = -ENOMEM;
 		goto gpio_free;
@@ -348,6 +435,23 @@ static int __devinit spi_gpio_probe(struct platform_device *pdev)
 	master->num_chipselect = SPI_N_CHIPSEL;
 	master->setup = spi_gpio_setup;
 	master->cleanup = spi_gpio_cleanup;
+#ifdef CONFIG_OF
+	master->dev.of_node = pdev->dev.of_node;
+
+	if (use_of) {
+		int i;
+		struct device_node *np = pdev->dev.of_node;
+
+		/*
+		 * In DT environments, take the CS GPIO from the "cs-gpios"
+		 * property of the node.
+		 */
+
+		for (i = 0; i < SPI_N_CHIPSEL; i++)
+			spi_gpio->cs_gpios[i] =
+				of_get_named_gpio(np, "cs-gpios", i);
+	}
+#endif
 
 	spi_gpio->bitbang.master = spi_master_get(master);
 	spi_gpio->bitbang.chipselect = spi_gpio_chipselect;
@@ -408,8 +512,11 @@ static int __devexit spi_gpio_remove(struct platform_device *pdev)
 MODULE_ALIAS("platform:" DRIVER_NAME);
 
 static struct platform_driver spi_gpio_driver = {
-	.driver.name	= DRIVER_NAME,
-	.driver.owner	= THIS_MODULE,
+	.driver = {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(spi_gpio_dt_ids),
+	},
 	.probe		= spi_gpio_probe,
 	.remove		= __devexit_p(spi_gpio_remove),
 };
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index e834ff8c018..c9a0d8467de 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -39,7 +39,7 @@
 #include <linux/of_gpio.h>
 #include <linux/pinctrl/consumer.h>
 
-#include <mach/spi.h>
+#include <linux/platform_data/spi-imx.h>
 
 #define DRIVER_NAME "spi_imx"
 
@@ -97,7 +97,7 @@ struct spi_imx_data {
 	const void *tx_buf;
 	unsigned int txfifo; /* number of words pushed in tx FIFO */
 
-	struct spi_imx_devtype_data *devtype_data;
+	const struct spi_imx_devtype_data *devtype_data;
 	int chipselect[0];
 };
 
@@ -197,6 +197,7 @@ static unsigned int spi_imx_clkdiv_2(unsigned int fin,
 #define MX51_ECSPI_CONFIG_SCLKPOL(cs)	(1 << ((cs) +  4))
 #define MX51_ECSPI_CONFIG_SBBCTRL(cs)	(1 << ((cs) +  8))
 #define MX51_ECSPI_CONFIG_SSBPOL(cs)	(1 << ((cs) + 12))
+#define MX51_ECSPI_CONFIG_SCLKCTL(cs)	(1 << ((cs) + 20))
 
 #define MX51_ECSPI_INT		0x10
 #define MX51_ECSPI_INT_TEEN		(1 <<  0)
@@ -287,9 +288,10 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx,
 	if (config->mode & SPI_CPHA)
 		cfg |= MX51_ECSPI_CONFIG_SCLKPHA(config->cs);
 
-	if (config->mode & SPI_CPOL)
+	if (config->mode & SPI_CPOL) {
 		cfg |= MX51_ECSPI_CONFIG_SCLKPOL(config->cs);
-
+		cfg |= MX51_ECSPI_CONFIG_SCLKCTL(config->cs);
+	}
 	if (config->mode & SPI_CS_HIGH)
 		cfg |= MX51_ECSPI_CONFIG_SSBPOL(config->cs);
 
diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 4c63f772780..0a1e39e94d0 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -494,7 +494,7 @@ free_master:
 
 static int __devexit mpc512x_psc_spi_do_remove(struct device *dev)
 {
-	struct spi_master *master = dev_get_drvdata(dev);
+	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(master);
 
 	flush_workqueue(mps->workqueue);
@@ -503,6 +503,7 @@ static int __devexit mpc512x_psc_spi_do_remove(struct device *dev)
 	free_irq(mps->irq, mps);
 	if (mps->psc)
 		iounmap(mps->psc);
+	spi_master_put(master);
 
 	return 0;
 }
diff --git a/drivers/spi/spi-mpc52xx-psc.c b/drivers/spi/spi-mpc52xx-psc.c
index 66047156d90..bd47d262d53 100644
--- a/drivers/spi/spi-mpc52xx-psc.c
+++ b/drivers/spi/spi-mpc52xx-psc.c
@@ -481,7 +481,7 @@ static int __devinit mpc52xx_psc_spi_of_probe(struct platform_device *op)
 
 static int __devexit mpc52xx_psc_spi_of_remove(struct platform_device *op)
 {
-	struct spi_master *master = dev_get_drvdata(&op->dev);
+	struct spi_master *master = spi_master_get(dev_get_drvdata(&op->dev));
 	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(master);
 
 	flush_workqueue(mps->workqueue);
@@ -490,6 +490,7 @@ static int __devexit mpc52xx_psc_spi_of_remove(struct platform_device *op)
 	free_irq(mps->irq, mps);
 	if (mps->psc)
 		iounmap(mps->psc);
+	spi_master_put(master);
 
 	return 0;
 }
diff --git a/drivers/spi/spi-mpc52xx.c b/drivers/spi/spi-mpc52xx.c
index cb3a3830b0a..04541065021 100644
--- a/drivers/spi/spi-mpc52xx.c
+++ b/drivers/spi/spi-mpc52xx.c
@@ -454,7 +454,7 @@ static int __devinit mpc52xx_spi_probe(struct platform_device *op)
 				GFP_KERNEL);
 		if (!ms->gpio_cs) {
 			rc = -ENOMEM;
-			goto err_alloc;
+			goto err_alloc_gpio;
 		}
 
 		for (i = 0; i < ms->gpio_cs_count; i++) {
@@ -514,12 +514,13 @@ static int __devinit mpc52xx_spi_probe(struct platform_device *op)
 
  err_register:
 	dev_err(&ms->master->dev, "initialization failed\n");
-	spi_master_put(master);
  err_gpio:
 	while (i-- > 0)
 		gpio_free(ms->gpio_cs[i]);
 
 	kfree(ms->gpio_cs);
+ err_alloc_gpio:
+	spi_master_put(master);
  err_alloc:
  err_init:
 	iounmap(regs);
@@ -528,7 +529,7 @@ static int __devinit mpc52xx_spi_probe(struct platform_device *op)
 
 static int __devexit mpc52xx_spi_remove(struct platform_device *op)
 {
-	struct spi_master *master = dev_get_drvdata(&op->dev);
+	struct spi_master *master = spi_master_get(dev_get_drvdata(&op->dev));
 	struct mpc52xx_spi *ms = spi_master_get_devdata(master);
 	int i;
 
@@ -540,8 +541,8 @@ static int __devexit mpc52xx_spi_remove(struct platform_device *op)
 
 	kfree(ms->gpio_cs);
 	spi_unregister_master(master);
-	spi_master_put(master);
 	iounmap(ms->regs);
+	spi_master_put(master);
 
 	return 0;
 }
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
new file mode 100644
index 00000000000..edf1360ab09
--- /dev/null
+++ b/drivers/spi/spi-mxs.c
@@ -0,0 +1,674 @@
+/*
+ * Freescale MXS SPI master driver
+ *
+ * Copyright 2012 DENX Software Engineering, GmbH.
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ *
+ * Rework and transition to new API by:
+ * Marek Vasut <marex@denx.de>
+ *
+ * Based on previous attempt by:
+ * Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * Based on code from U-Boot bootloader by:
+ * Marek Vasut <marex@denx.de>
+ *
+ * Based on spi-stmp.c, which is:
+ * Author: Dmitry Pervushin <dimka@embeddedalley.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/highmem.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/completion.h>
+#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
+#include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/stmp_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/mxs-spi.h>
+
+#define DRIVER_NAME		"mxs-spi"
+
+/* Use 10S timeout for very long transfers, it should suffice. */
+#define SSP_TIMEOUT		10000
+
+#define SG_MAXLEN		0xff00
+
+struct mxs_spi {
+	struct mxs_ssp		ssp;
+	struct completion	c;
+};
+
+static int mxs_spi_setup_transfer(struct spi_device *dev,
+				struct spi_transfer *t)
+{
+	struct mxs_spi *spi = spi_master_get_devdata(dev->master);
+	struct mxs_ssp *ssp = &spi->ssp;
+	uint8_t bits_per_word;
+	uint32_t hz = 0;
+
+	bits_per_word = dev->bits_per_word;
+	if (t && t->bits_per_word)
+		bits_per_word = t->bits_per_word;
+
+	if (bits_per_word != 8) {
+		dev_err(&dev->dev, "%s, unsupported bits_per_word=%d\n",
+					__func__, bits_per_word);
+		return -EINVAL;
+	}
+
+	hz = dev->max_speed_hz;
+	if (t && t->speed_hz)
+		hz = min(hz, t->speed_hz);
+	if (hz == 0) {
+		dev_err(&dev->dev, "Cannot continue with zero clock\n");
+		return -EINVAL;
+	}
+
+	mxs_ssp_set_clk_rate(ssp, hz);
+
+	writel(BF_SSP_CTRL1_SSP_MODE(BV_SSP_CTRL1_SSP_MODE__SPI) |
+		     BF_SSP_CTRL1_WORD_LENGTH
+		     (BV_SSP_CTRL1_WORD_LENGTH__EIGHT_BITS) |
+		     ((dev->mode & SPI_CPOL) ? BM_SSP_CTRL1_POLARITY : 0) |
+		     ((dev->mode & SPI_CPHA) ? BM_SSP_CTRL1_PHASE : 0),
+		     ssp->base + HW_SSP_CTRL1(ssp));
+
+	writel(0x0, ssp->base + HW_SSP_CMD0);
+	writel(0x0, ssp->base + HW_SSP_CMD1);
+
+	return 0;
+}
+
+static int mxs_spi_setup(struct spi_device *dev)
+{
+	int err = 0;
+
+	if (!dev->bits_per_word)
+		dev->bits_per_word = 8;
+
+	if (dev->mode & ~(SPI_CPOL | SPI_CPHA))
+		return -EINVAL;
+
+	err = mxs_spi_setup_transfer(dev, NULL);
+	if (err) {
+		dev_err(&dev->dev,
+			"Failed to setup transfer, error = %d\n", err);
+	}
+
+	return err;
+}
+
+static uint32_t mxs_spi_cs_to_reg(unsigned cs)
+{
+	uint32_t select = 0;
+
+	/*
+	 * i.MX28 Datasheet: 17.10.1: HW_SSP_CTRL0
+	 *
+	 * The bits BM_SSP_CTRL0_WAIT_FOR_CMD and BM_SSP_CTRL0_WAIT_FOR_IRQ
+	 * in HW_SSP_CTRL0 register do have multiple usage, please refer to
+	 * the datasheet for further details. In SPI mode, they are used to
+	 * toggle the chip-select lines (nCS pins).
+	 */
+	if (cs & 1)
+		select |= BM_SSP_CTRL0_WAIT_FOR_CMD;
+	if (cs & 2)
+		select |= BM_SSP_CTRL0_WAIT_FOR_IRQ;
+
+	return select;
+}
+
+static void mxs_spi_set_cs(struct mxs_spi *spi, unsigned cs)
+{
+	const uint32_t mask =
+		BM_SSP_CTRL0_WAIT_FOR_CMD | BM_SSP_CTRL0_WAIT_FOR_IRQ;
+	uint32_t select;
+	struct mxs_ssp *ssp = &spi->ssp;
+
+	writel(mask, ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+	select = mxs_spi_cs_to_reg(cs);
+	writel(select, ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+}
+
+static inline void mxs_spi_enable(struct mxs_spi *spi)
+{
+	struct mxs_ssp *ssp = &spi->ssp;
+
+	writel(BM_SSP_CTRL0_LOCK_CS,
+		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+	writel(BM_SSP_CTRL0_IGNORE_CRC,
+		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+}
+
+static inline void mxs_spi_disable(struct mxs_spi *spi)
+{
+	struct mxs_ssp *ssp = &spi->ssp;
+
+	writel(BM_SSP_CTRL0_LOCK_CS,
+		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+	writel(BM_SSP_CTRL0_IGNORE_CRC,
+		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+}
+
+static int mxs_ssp_wait(struct mxs_spi *spi, int offset, int mask, bool set)
+{
+	const unsigned long timeout = jiffies + msecs_to_jiffies(SSP_TIMEOUT);
+	struct mxs_ssp *ssp = &spi->ssp;
+	uint32_t reg;
+
+	do {
+		reg = readl_relaxed(ssp->base + offset);
+
+		if (!set)
+			reg = ~reg;
+
+		reg &= mask;
+
+		if (reg == mask)
+			return 0;
+	} while (time_before(jiffies, timeout));
+
+	return -ETIMEDOUT;
+}
+
+static void mxs_ssp_dma_irq_callback(void *param)
+{
+	struct mxs_spi *spi = param;
+	complete(&spi->c);
+}
+
+static irqreturn_t mxs_ssp_irq_handler(int irq, void *dev_id)
+{
+	struct mxs_ssp *ssp = dev_id;
+	dev_err(ssp->dev, "%s[%i] CTRL1=%08x STATUS=%08x\n",
+		__func__, __LINE__,
+		readl(ssp->base + HW_SSP_CTRL1(ssp)),
+		readl(ssp->base + HW_SSP_STATUS(ssp)));
+	return IRQ_HANDLED;
+}
+
+static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
+			    unsigned char *buf, int len,
+			    int *first, int *last, int write)
+{
+	struct mxs_ssp *ssp = &spi->ssp;
+	struct dma_async_tx_descriptor *desc = NULL;
+	const bool vmalloced_buf = is_vmalloc_addr(buf);
+	const int desc_len = vmalloced_buf ? PAGE_SIZE : SG_MAXLEN;
+	const int sgs = DIV_ROUND_UP(len, desc_len);
+	int sg_count;
+	int min, ret;
+	uint32_t ctrl0;
+	struct page *vm_page;
+	void *sg_buf;
+	struct {
+		uint32_t		pio[4];
+		struct scatterlist	sg;
+	} *dma_xfer;
+
+	if (!len)
+		return -EINVAL;
+
+	dma_xfer = kzalloc(sizeof(*dma_xfer) * sgs, GFP_KERNEL);
+	if (!dma_xfer)
+		return -ENOMEM;
+
+	INIT_COMPLETION(spi->c);
+
+	ctrl0 = readl(ssp->base + HW_SSP_CTRL0);
+	ctrl0 |= BM_SSP_CTRL0_DATA_XFER | mxs_spi_cs_to_reg(cs);
+
+	if (*first)
+		ctrl0 |= BM_SSP_CTRL0_LOCK_CS;
+	if (!write)
+		ctrl0 |= BM_SSP_CTRL0_READ;
+
+	/* Queue the DMA data transfer. */
+	for (sg_count = 0; sg_count < sgs; sg_count++) {
+		min = min(len, desc_len);
+
+		/* Prepare the transfer descriptor. */
+		if ((sg_count + 1 == sgs) && *last)
+			ctrl0 |= BM_SSP_CTRL0_IGNORE_CRC;
+
+		if (ssp->devid == IMX23_SSP)
+			ctrl0 |= min;
+
+		dma_xfer[sg_count].pio[0] = ctrl0;
+		dma_xfer[sg_count].pio[3] = min;
+
+		if (vmalloced_buf) {
+			vm_page = vmalloc_to_page(buf);
+			if (!vm_page) {
+				ret = -ENOMEM;
+				goto err_vmalloc;
+			}
+			sg_buf = page_address(vm_page) +
+				((size_t)buf & ~PAGE_MASK);
+		} else {
+			sg_buf = buf;
+		}
+
+		sg_init_one(&dma_xfer[sg_count].sg, sg_buf, min);
+		ret = dma_map_sg(ssp->dev, &dma_xfer[sg_count].sg, 1,
+			write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+
+		len -= min;
+		buf += min;
+
+		/* Queue the PIO register write transfer. */
+		desc = dmaengine_prep_slave_sg(ssp->dmach,
+				(struct scatterlist *)dma_xfer[sg_count].pio,
+				(ssp->devid == IMX23_SSP) ? 1 : 4,
+				DMA_TRANS_NONE,
+				sg_count ? DMA_PREP_INTERRUPT : 0);
+		if (!desc) {
+			dev_err(ssp->dev,
+				"Failed to get PIO reg. write descriptor.\n");
+			ret = -EINVAL;
+			goto err_mapped;
+		}
+
+		desc = dmaengine_prep_slave_sg(ssp->dmach,
+				&dma_xfer[sg_count].sg, 1,
+				write ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM,
+				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+
+		if (!desc) {
+			dev_err(ssp->dev,
+				"Failed to get DMA data write descriptor.\n");
+			ret = -EINVAL;
+			goto err_mapped;
+		}
+	}
+
+	/*
+	 * The last descriptor must have this callback,
+	 * to finish the DMA transaction.
+	 */
+	desc->callback = mxs_ssp_dma_irq_callback;
+	desc->callback_param = spi;
+
+	/* Start the transfer. */
+	dmaengine_submit(desc);
+	dma_async_issue_pending(ssp->dmach);
+
+	ret = wait_for_completion_timeout(&spi->c,
+				msecs_to_jiffies(SSP_TIMEOUT));
+	if (!ret) {
+		dev_err(ssp->dev, "DMA transfer timeout\n");
+		ret = -ETIMEDOUT;
+		goto err_vmalloc;
+	}
+
+	ret = 0;
+
+err_vmalloc:
+	while (--sg_count >= 0) {
+err_mapped:
+		dma_unmap_sg(ssp->dev, &dma_xfer[sg_count].sg, 1,
+			write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+	}
+
+	kfree(dma_xfer);
+
+	return ret;
+}
+
+static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
+			    unsigned char *buf, int len,
+			    int *first, int *last, int write)
+{
+	struct mxs_ssp *ssp = &spi->ssp;
+
+	if (*first)
+		mxs_spi_enable(spi);
+
+	mxs_spi_set_cs(spi, cs);
+
+	while (len--) {
+		if (*last && len == 0)
+			mxs_spi_disable(spi);
+
+		if (ssp->devid == IMX23_SSP) {
+			writel(BM_SSP_CTRL0_XFER_COUNT,
+				ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+			writel(1,
+				ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+		} else {
+			writel(1, ssp->base + HW_SSP_XFER_SIZE);
+		}
+
+		if (write)
+			writel(BM_SSP_CTRL0_READ,
+				ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+		else
+			writel(BM_SSP_CTRL0_READ,
+				ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+
+		writel(BM_SSP_CTRL0_RUN,
+				ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+
+		if (mxs_ssp_wait(spi, HW_SSP_CTRL0, BM_SSP_CTRL0_RUN, 1))
+			return -ETIMEDOUT;
+
+		if (write)
+			writel(*buf, ssp->base + HW_SSP_DATA(ssp));
+
+		writel(BM_SSP_CTRL0_DATA_XFER,
+			     ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+
+		if (!write) {
+			if (mxs_ssp_wait(spi, HW_SSP_STATUS(ssp),
+						BM_SSP_STATUS_FIFO_EMPTY, 0))
+				return -ETIMEDOUT;
+
+			*buf = (readl(ssp->base + HW_SSP_DATA(ssp)) & 0xff);
+		}
+
+		if (mxs_ssp_wait(spi, HW_SSP_CTRL0, BM_SSP_CTRL0_RUN, 0))
+			return -ETIMEDOUT;
+
+		buf++;
+	}
+
+	if (len <= 0)
+		return 0;
+
+	return -ETIMEDOUT;
+}
+
+static int mxs_spi_transfer_one(struct spi_master *master,
+				struct spi_message *m)
+{
+	struct mxs_spi *spi = spi_master_get_devdata(master);
+	struct mxs_ssp *ssp = &spi->ssp;
+	int first, last;
+	struct spi_transfer *t, *tmp_t;
+	int status = 0;
+	int cs;
+
+	first = last = 0;
+
+	cs = m->spi->chip_select;
+
+	list_for_each_entry_safe(t, tmp_t, &m->transfers, transfer_list) {
+
+		status = mxs_spi_setup_transfer(m->spi, t);
+		if (status)
+			break;
+
+		if (&t->transfer_list == m->transfers.next)
+			first = 1;
+		if (&t->transfer_list == m->transfers.prev)
+			last = 1;
+		if ((t->rx_buf && t->tx_buf) || (t->rx_dma && t->tx_dma)) {
+			dev_err(ssp->dev,
+				"Cannot send and receive simultaneously\n");
+			status = -EINVAL;
+			break;
+		}
+
+		/*
+		 * Small blocks can be transfered via PIO.
+		 * Measured by empiric means:
+		 *
+		 * dd if=/dev/mtdblock0 of=/dev/null bs=1024k count=1
+		 *
+		 * DMA only: 2.164808 seconds, 473.0KB/s
+		 * Combined: 1.676276 seconds, 610.9KB/s
+		 */
+		if (t->len < 32) {
+			writel(BM_SSP_CTRL1_DMA_ENABLE,
+				ssp->base + HW_SSP_CTRL1(ssp) +
+				STMP_OFFSET_REG_CLR);
+
+			if (t->tx_buf)
+				status = mxs_spi_txrx_pio(spi, cs,
+						(void *)t->tx_buf,
+						t->len, &first, &last, 1);
+			if (t->rx_buf)
+				status = mxs_spi_txrx_pio(spi, cs,
+						t->rx_buf, t->len,
+						&first, &last, 0);
+		} else {
+			writel(BM_SSP_CTRL1_DMA_ENABLE,
+				ssp->base + HW_SSP_CTRL1(ssp) +
+				STMP_OFFSET_REG_SET);
+
+			if (t->tx_buf)
+				status = mxs_spi_txrx_dma(spi, cs,
+						(void *)t->tx_buf, t->len,
+						&first, &last, 1);
+			if (t->rx_buf)
+				status = mxs_spi_txrx_dma(spi, cs,
+						t->rx_buf, t->len,
+						&first, &last, 0);
+		}
+
+		if (status) {
+			stmp_reset_block(ssp->base);
+			break;
+		}
+
+		m->actual_length += t->len;
+		first = last = 0;
+	}
+
+	m->status = 0;
+	spi_finalize_current_message(master);
+
+	return status;
+}
+
+static bool mxs_ssp_dma_filter(struct dma_chan *chan, void *param)
+{
+	struct mxs_ssp *ssp = param;
+
+	if (!mxs_dma_is_apbh(chan))
+		return false;
+
+	if (chan->chan_id != ssp->dma_channel)
+		return false;
+
+	chan->private = &ssp->dma_data;
+
+	return true;
+}
+
+static const struct of_device_id mxs_spi_dt_ids[] = {
+	{ .compatible = "fsl,imx23-spi", .data = (void *) IMX23_SSP, },
+	{ .compatible = "fsl,imx28-spi", .data = (void *) IMX28_SSP, },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mxs_spi_dt_ids);
+
+static int __devinit mxs_spi_probe(struct platform_device *pdev)
+{
+	const struct of_device_id *of_id =
+			of_match_device(mxs_spi_dt_ids, &pdev->dev);
+	struct device_node *np = pdev->dev.of_node;
+	struct spi_master *master;
+	struct mxs_spi *spi;
+	struct mxs_ssp *ssp;
+	struct resource *iores, *dmares;
+	struct pinctrl *pinctrl;
+	struct clk *clk;
+	void __iomem *base;
+	int devid, dma_channel, clk_freq;
+	int ret = 0, irq_err, irq_dma;
+	dma_cap_mask_t mask;
+
+	/*
+	 * Default clock speed for the SPI core. 160MHz seems to
+	 * work reasonably well with most SPI flashes, so use this
+	 * as a default. Override with "clock-frequency" DT prop.
+	 */
+	const int clk_freq_default = 160000000;
+
+	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	irq_err = platform_get_irq(pdev, 0);
+	irq_dma = platform_get_irq(pdev, 1);
+	if (!iores || irq_err < 0 || irq_dma < 0)
+		return -EINVAL;
+
+	base = devm_request_and_ioremap(&pdev->dev, iores);
+	if (!base)
+		return -EADDRNOTAVAIL;
+
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(pinctrl))
+		return PTR_ERR(pinctrl);
+
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	if (np) {
+		devid = (enum mxs_ssp_id) of_id->data;
+		/*
+		 * TODO: This is a temporary solution and should be changed
+		 * to use generic DMA binding later when the helpers get in.
+		 */
+		ret = of_property_read_u32(np, "fsl,ssp-dma-channel",
+					   &dma_channel);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"Failed to get DMA channel\n");
+			return -EINVAL;
+		}
+
+		ret = of_property_read_u32(np, "clock-frequency",
+					   &clk_freq);
+		if (ret)
+			clk_freq = clk_freq_default;
+	} else {
+		dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+		if (!dmares)
+			return -EINVAL;
+		devid = pdev->id_entry->driver_data;
+		dma_channel = dmares->start;
+		clk_freq = clk_freq_default;
+	}
+
+	master = spi_alloc_master(&pdev->dev, sizeof(*spi));
+	if (!master)
+		return -ENOMEM;
+
+	master->transfer_one_message = mxs_spi_transfer_one;
+	master->setup = mxs_spi_setup;
+	master->mode_bits = SPI_CPOL | SPI_CPHA;
+	master->num_chipselect = 3;
+	master->dev.of_node = np;
+	master->flags = SPI_MASTER_HALF_DUPLEX;
+
+	spi = spi_master_get_devdata(master);
+	ssp = &spi->ssp;
+	ssp->dev = &pdev->dev;
+	ssp->clk = clk;
+	ssp->base = base;
+	ssp->devid = devid;
+	ssp->dma_channel = dma_channel;
+
+	init_completion(&spi->c);
+
+	ret = devm_request_irq(&pdev->dev, irq_err, mxs_ssp_irq_handler, 0,
+			       DRIVER_NAME, ssp);
+	if (ret)
+		goto out_master_free;
+
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_SLAVE, mask);
+	ssp->dma_data.chan_irq = irq_dma;
+	ssp->dmach = dma_request_channel(mask, mxs_ssp_dma_filter, ssp);
+	if (!ssp->dmach) {
+		dev_err(ssp->dev, "Failed to request DMA\n");
+		goto out_master_free;
+	}
+
+	clk_prepare_enable(ssp->clk);
+	clk_set_rate(ssp->clk, clk_freq);
+	ssp->clk_rate = clk_get_rate(ssp->clk) / 1000;
+
+	stmp_reset_block(ssp->base);
+
+	platform_set_drvdata(pdev, master);
+
+	ret = spi_register_master(master);
+	if (ret) {
+		dev_err(&pdev->dev, "Cannot register SPI master, %d\n", ret);
+		goto out_free_dma;
+	}
+
+	return 0;
+
+out_free_dma:
+	dma_release_channel(ssp->dmach);
+	clk_disable_unprepare(ssp->clk);
+out_master_free:
+	spi_master_put(master);
+	return ret;
+}
+
+static int __devexit mxs_spi_remove(struct platform_device *pdev)
+{
+	struct spi_master *master;
+	struct mxs_spi *spi;
+	struct mxs_ssp *ssp;
+
+	master = spi_master_get(platform_get_drvdata(pdev));
+	spi = spi_master_get_devdata(master);
+	ssp = &spi->ssp;
+
+	spi_unregister_master(master);
+
+	dma_release_channel(ssp->dmach);
+
+	clk_disable_unprepare(ssp->clk);
+
+	spi_master_put(master);
+
+	return 0;
+}
+
+static struct platform_driver mxs_spi_driver = {
+	.probe	= mxs_spi_probe,
+	.remove	= __devexit_p(mxs_spi_remove),
+	.driver	= {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = mxs_spi_dt_ids,
+	},
+};
+
+module_platform_driver(mxs_spi_driver);
+
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_DESCRIPTION("MXS SPI master driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mxs-spi");
diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c
index dae8be229c5..a6eca6ffdab 100644
--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -26,7 +26,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
 
-#include <mach/nuc900_spi.h>
+#include <linux/platform_data/spi-nuc900.h>
 
 /* usi registers offset */
 #define USI_CNT		0x00
diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c
index 698018fd992..9d9071b730b 100644
--- a/drivers/spi/spi-oc-tiny.c
+++ b/drivers/spi/spi-oc-tiny.c
@@ -129,7 +129,7 @@ static int tiny_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
 	unsigned int i;
 
 	if (hw->irq >= 0) {
-		/* use intrrupt driven data transfer */
+		/* use interrupt driven data transfer */
 		hw->len = t->len;
 		hw->txp = t->tx_buf;
 		hw->rxp = t->rx_buf;
diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 9b0d7169603..0a94d9dc9c3 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -52,8 +52,9 @@
 #include <asm/io.h>
 #include <asm/mach-types.h>
 
-#include <plat/mux.h>
-#include <plat/omap7xx.h>	/* OMAP7XX_IO_CONF registers */
+#include <mach/mux.h>
+
+#include <mach/omap7xx.h>	/* OMAP7XX_IO_CONF registers */
 
 
 /* FIXME address is now a platform device resource,
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index bc4778175e3..474e2174e08 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -38,11 +38,13 @@
 #include <linux/pm_runtime.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/err.h>
 
 #include <linux/spi/spi.h>
 
 #include <plat/clock.h>
-#include <plat/mcspi.h>
+#include <linux/platform_data/spi-omap2-mcspi.h>
 
 #define OMAP2_MCSPI_MAX_FREQ		48000000
 #define SPI_AUTOSUSPEND_TIMEOUT		2000
@@ -140,13 +142,6 @@ struct omap2_mcspi_cs {
 	u32			chconf0;
 };
 
-#define MOD_REG_BIT(val, mask, set) do { \
-	if (set) \
-		val |= mask; \
-	else \
-		val &= ~mask; \
-} while (0)
-
 static inline void mcspi_write_reg(struct spi_master *master,
 		int idx, u32 val)
 {
@@ -205,7 +200,11 @@ static void omap2_mcspi_set_dma_req(const struct spi_device *spi,
 	else
 		rw = OMAP2_MCSPI_CHCONF_DMAW;
 
-	MOD_REG_BIT(l, rw, enable);
+	if (enable)
+		l |= rw;
+	else
+		l &= ~rw;
+
 	mcspi_write_chconf0(spi, l);
 }
 
@@ -224,7 +223,11 @@ static void omap2_mcspi_force_cs(struct spi_device *spi, int cs_active)
 	u32 l;
 
 	l = mcspi_cached_chconf0(spi);
-	MOD_REG_BIT(l, OMAP2_MCSPI_CHCONF_FORCE, cs_active);
+	if (cs_active)
+		l |= OMAP2_MCSPI_CHCONF_FORCE;
+	else
+		l &= ~OMAP2_MCSPI_CHCONF_FORCE;
+
 	mcspi_write_chconf0(spi, l);
 }
 
@@ -239,9 +242,8 @@ static void omap2_mcspi_set_master_mode(struct spi_master *master)
 	 * to single-channel master mode
 	 */
 	l = mcspi_read_reg(master, OMAP2_MCSPI_MODULCTRL);
-	MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_STEST, 0);
-	MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_MS, 0);
-	MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_SINGLE, 1);
+	l &= ~(OMAP2_MCSPI_MODULCTRL_STEST | OMAP2_MCSPI_MODULCTRL_MS);
+	l |= OMAP2_MCSPI_MODULCTRL_SINGLE;
 	mcspi_write_reg(master, OMAP2_MCSPI_MODULCTRL, l);
 
 	ctx->modulctrl = l;
@@ -260,16 +262,6 @@ static void omap2_mcspi_restore_ctx(struct omap2_mcspi *mcspi)
 	list_for_each_entry(cs, &ctx->cs, node)
 		__raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
 }
-static void omap2_mcspi_disable_clocks(struct omap2_mcspi *mcspi)
-{
-	pm_runtime_mark_last_busy(mcspi->dev);
-	pm_runtime_put_autosuspend(mcspi->dev);
-}
-
-static int omap2_mcspi_enable_clocks(struct omap2_mcspi *mcspi)
-{
-	return pm_runtime_get_sync(mcspi->dev);
-}
 
 static int omap2_prepare_transfer(struct spi_master *master)
 {
@@ -325,49 +317,27 @@ static void omap2_mcspi_tx_callback(void *data)
 	omap2_mcspi_set_dma_req(spi, 0, 0);
 }
 
-static unsigned
-omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
+static void omap2_mcspi_tx_dma(struct spi_device *spi,
+				struct spi_transfer *xfer,
+				struct dma_slave_config cfg)
 {
 	struct omap2_mcspi	*mcspi;
-	struct omap2_mcspi_cs	*cs = spi->controller_state;
 	struct omap2_mcspi_dma  *mcspi_dma;
 	unsigned int		count;
-	int			word_len, element_count;
-	int			elements = 0;
-	u32			l;
 	u8			* rx;
 	const u8		* tx;
 	void __iomem		*chstat_reg;
-	struct dma_slave_config	cfg;
-	enum dma_slave_buswidth width;
-	unsigned es;
+	struct omap2_mcspi_cs	*cs = spi->controller_state;
 
 	mcspi = spi_master_get_devdata(spi->master);
 	mcspi_dma = &mcspi->dma_channels[spi->chip_select];
-	l = mcspi_cached_chconf0(spi);
+	count = xfer->len;
 
+	rx = xfer->rx_buf;
+	tx = xfer->tx_buf;
 	chstat_reg = cs->base + OMAP2_MCSPI_CHSTAT0;
 
-	if (cs->word_len <= 8) {
-		width = DMA_SLAVE_BUSWIDTH_1_BYTE;
-		es = 1;
-	} else if (cs->word_len <= 16) {
-		width = DMA_SLAVE_BUSWIDTH_2_BYTES;
-		es = 2;
-	} else {
-		width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-		es = 4;
-	}
-
-	memset(&cfg, 0, sizeof(cfg));
-	cfg.src_addr = cs->phys + OMAP2_MCSPI_RX0;
-	cfg.dst_addr = cs->phys + OMAP2_MCSPI_TX0;
-	cfg.src_addr_width = width;
-	cfg.dst_addr_width = width;
-	cfg.src_maxburst = 1;
-	cfg.dst_maxburst = 1;
-
-	if (xfer->tx_buf && mcspi_dma->dma_tx) {
+	if (mcspi_dma->dma_tx) {
 		struct dma_async_tx_descriptor *tx;
 		struct scatterlist sg;
 
@@ -378,7 +348,7 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
 		sg_dma_len(&sg) = xfer->len;
 
 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_tx, &sg, 1,
-			DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+		DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 		if (tx) {
 			tx->callback = omap2_mcspi_tx_callback;
 			tx->callback_param = spi;
@@ -387,8 +357,50 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
 			/* FIXME: fall back to PIO? */
 		}
 	}
+	dma_async_issue_pending(mcspi_dma->dma_tx);
+	omap2_mcspi_set_dma_req(spi, 0, 1);
 
-	if (xfer->rx_buf && mcspi_dma->dma_rx) {
+	wait_for_completion(&mcspi_dma->dma_tx_completion);
+	dma_unmap_single(mcspi->dev, xfer->tx_dma, count,
+			 DMA_TO_DEVICE);
+
+	/* for TX_ONLY mode, be sure all words have shifted out */
+	if (rx == NULL) {
+		if (mcspi_wait_for_reg_bit(chstat_reg,
+					OMAP2_MCSPI_CHSTAT_TXS) < 0)
+			dev_err(&spi->dev, "TXS timed out\n");
+		else if (mcspi_wait_for_reg_bit(chstat_reg,
+					OMAP2_MCSPI_CHSTAT_EOT) < 0)
+			dev_err(&spi->dev, "EOT timed out\n");
+	}
+}
+
+static unsigned
+omap2_mcspi_rx_dma(struct spi_device *spi, struct spi_transfer *xfer,
+				struct dma_slave_config cfg,
+				unsigned es)
+{
+	struct omap2_mcspi	*mcspi;
+	struct omap2_mcspi_dma  *mcspi_dma;
+	unsigned int		count;
+	u32			l;
+	int			elements = 0;
+	int			word_len, element_count;
+	struct omap2_mcspi_cs	*cs = spi->controller_state;
+	mcspi = spi_master_get_devdata(spi->master);
+	mcspi_dma = &mcspi->dma_channels[spi->chip_select];
+	count = xfer->len;
+	word_len = cs->word_len;
+	l = mcspi_cached_chconf0(spi);
+
+	if (word_len <= 8)
+		element_count = count;
+	else if (word_len <= 16)
+		element_count = count >> 1;
+	else /* word_len <= 32 */
+		element_count = count >> 2;
+
+	if (mcspi_dma->dma_rx) {
 		struct dma_async_tx_descriptor *tx;
 		struct scatterlist sg;
 		size_t len = xfer->len - es;
@@ -403,108 +415,120 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
 		sg_dma_len(&sg) = len;
 
 		tx = dmaengine_prep_slave_sg(mcspi_dma->dma_rx, &sg, 1,
-			DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+				DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT |
+				DMA_CTRL_ACK);
 		if (tx) {
 			tx->callback = omap2_mcspi_rx_callback;
 			tx->callback_param = spi;
 			dmaengine_submit(tx);
 		} else {
-			/* FIXME: fall back to PIO? */
+				/* FIXME: fall back to PIO? */
 		}
 	}
 
-	count = xfer->len;
-	word_len = cs->word_len;
-
-	rx = xfer->rx_buf;
-	tx = xfer->tx_buf;
+	dma_async_issue_pending(mcspi_dma->dma_rx);
+	omap2_mcspi_set_dma_req(spi, 1, 1);
 
-	if (word_len <= 8) {
-		element_count = count;
-	} else if (word_len <= 16) {
-		element_count = count >> 1;
-	} else /* word_len <= 32 */ {
-		element_count = count >> 2;
-	}
-
-	if (tx != NULL) {
-		dma_async_issue_pending(mcspi_dma->dma_tx);
-		omap2_mcspi_set_dma_req(spi, 0, 1);
-	}
-
-	if (rx != NULL) {
-		dma_async_issue_pending(mcspi_dma->dma_rx);
-		omap2_mcspi_set_dma_req(spi, 1, 1);
-	}
-
-	if (tx != NULL) {
-		wait_for_completion(&mcspi_dma->dma_tx_completion);
-		dma_unmap_single(mcspi->dev, xfer->tx_dma, count,
-				 DMA_TO_DEVICE);
-
-		/* for TX_ONLY mode, be sure all words have shifted out */
-		if (rx == NULL) {
-			if (mcspi_wait_for_reg_bit(chstat_reg,
-						OMAP2_MCSPI_CHSTAT_TXS) < 0)
-				dev_err(&spi->dev, "TXS timed out\n");
-			else if (mcspi_wait_for_reg_bit(chstat_reg,
-						OMAP2_MCSPI_CHSTAT_EOT) < 0)
-				dev_err(&spi->dev, "EOT timed out\n");
-		}
-	}
-
-	if (rx != NULL) {
-		wait_for_completion(&mcspi_dma->dma_rx_completion);
-		dma_unmap_single(mcspi->dev, xfer->rx_dma, count,
-				 DMA_FROM_DEVICE);
-		omap2_mcspi_set_enable(spi, 0);
-
-		elements = element_count - 1;
+	wait_for_completion(&mcspi_dma->dma_rx_completion);
+	dma_unmap_single(mcspi->dev, xfer->rx_dma, count,
+			 DMA_FROM_DEVICE);
+	omap2_mcspi_set_enable(spi, 0);
 
-		if (l & OMAP2_MCSPI_CHCONF_TURBO) {
-			elements--;
+	elements = element_count - 1;
 
-			if (likely(mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHSTAT0)
-				   & OMAP2_MCSPI_CHSTAT_RXS)) {
-				u32 w;
-
-				w = mcspi_read_cs_reg(spi, OMAP2_MCSPI_RX0);
-				if (word_len <= 8)
-					((u8 *)xfer->rx_buf)[elements++] = w;
-				else if (word_len <= 16)
-					((u16 *)xfer->rx_buf)[elements++] = w;
-				else /* word_len <= 32 */
-					((u32 *)xfer->rx_buf)[elements++] = w;
-			} else {
-				dev_err(&spi->dev,
-					"DMA RX penultimate word empty");
-				count -= (word_len <= 8)  ? 2 :
-					(word_len <= 16) ? 4 :
-					/* word_len <= 32 */ 8;
-				omap2_mcspi_set_enable(spi, 1);
-				return count;
-			}
-		}
+	if (l & OMAP2_MCSPI_CHCONF_TURBO) {
+		elements--;
 
 		if (likely(mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHSTAT0)
-				& OMAP2_MCSPI_CHSTAT_RXS)) {
+				   & OMAP2_MCSPI_CHSTAT_RXS)) {
 			u32 w;
 
 			w = mcspi_read_cs_reg(spi, OMAP2_MCSPI_RX0);
 			if (word_len <= 8)
-				((u8 *)xfer->rx_buf)[elements] = w;
+				((u8 *)xfer->rx_buf)[elements++] = w;
 			else if (word_len <= 16)
-				((u16 *)xfer->rx_buf)[elements] = w;
+				((u16 *)xfer->rx_buf)[elements++] = w;
 			else /* word_len <= 32 */
-				((u32 *)xfer->rx_buf)[elements] = w;
+				((u32 *)xfer->rx_buf)[elements++] = w;
 		} else {
-			dev_err(&spi->dev, "DMA RX last word empty");
-			count -= (word_len <= 8)  ? 1 :
-				 (word_len <= 16) ? 2 :
-			       /* word_len <= 32 */ 4;
+			dev_err(&spi->dev, "DMA RX penultimate word empty");
+			count -= (word_len <= 8)  ? 2 :
+				(word_len <= 16) ? 4 :
+				/* word_len <= 32 */ 8;
+			omap2_mcspi_set_enable(spi, 1);
+			return count;
 		}
-		omap2_mcspi_set_enable(spi, 1);
 	}
+	if (likely(mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHSTAT0)
+				& OMAP2_MCSPI_CHSTAT_RXS)) {
+		u32 w;
+
+		w = mcspi_read_cs_reg(spi, OMAP2_MCSPI_RX0);
+		if (word_len <= 8)
+			((u8 *)xfer->rx_buf)[elements] = w;
+		else if (word_len <= 16)
+			((u16 *)xfer->rx_buf)[elements] = w;
+		else /* word_len <= 32 */
+			((u32 *)xfer->rx_buf)[elements] = w;
+	} else {
+		dev_err(&spi->dev, "DMA RX last word empty");
+		count -= (word_len <= 8)  ? 1 :
+			 (word_len <= 16) ? 2 :
+		       /* word_len <= 32 */ 4;
+	}
+	omap2_mcspi_set_enable(spi, 1);
+	return count;
+}
+
+static unsigned
+omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
+{
+	struct omap2_mcspi	*mcspi;
+	struct omap2_mcspi_cs	*cs = spi->controller_state;
+	struct omap2_mcspi_dma  *mcspi_dma;
+	unsigned int		count;
+	u32			l;
+	u8			*rx;
+	const u8		*tx;
+	struct dma_slave_config	cfg;
+	enum dma_slave_buswidth width;
+	unsigned es;
+
+	mcspi = spi_master_get_devdata(spi->master);
+	mcspi_dma = &mcspi->dma_channels[spi->chip_select];
+	l = mcspi_cached_chconf0(spi);
+
+
+	if (cs->word_len <= 8) {
+		width = DMA_SLAVE_BUSWIDTH_1_BYTE;
+		es = 1;
+	} else if (cs->word_len <= 16) {
+		width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+		es = 2;
+	} else {
+		width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+		es = 4;
+	}
+
+	memset(&cfg, 0, sizeof(cfg));
+	cfg.src_addr = cs->phys + OMAP2_MCSPI_RX0;
+	cfg.dst_addr = cs->phys + OMAP2_MCSPI_TX0;
+	cfg.src_addr_width = width;
+	cfg.dst_addr_width = width;
+	cfg.src_maxburst = 1;
+	cfg.dst_maxburst = 1;
+
+	rx = xfer->rx_buf;
+	tx = xfer->tx_buf;
+
+	count = xfer->len;
+
+	if (tx != NULL)
+		omap2_mcspi_tx_dma(spi, xfer, cfg);
+
+	if (rx != NULL)
+		return omap2_mcspi_rx_dma(spi, xfer, cfg, es);
+
 	return count;
 }
 
@@ -848,12 +872,13 @@ static int omap2_mcspi_setup(struct spi_device *spi)
 			return ret;
 	}
 
-	ret = omap2_mcspi_enable_clocks(mcspi);
+	ret = pm_runtime_get_sync(mcspi->dev);
 	if (ret < 0)
 		return ret;
 
 	ret = omap2_mcspi_setup_transfer(spi, NULL);
-	omap2_mcspi_disable_clocks(mcspi);
+	pm_runtime_mark_last_busy(mcspi->dev);
+	pm_runtime_put_autosuspend(mcspi->dev);
 
 	return ret;
 }
@@ -1067,7 +1092,7 @@ static int __devinit omap2_mcspi_master_setup(struct omap2_mcspi *mcspi)
 	struct omap2_mcspi_regs	*ctx = &mcspi->ctx;
 	int			ret = 0;
 
-	ret = omap2_mcspi_enable_clocks(mcspi);
+	ret = pm_runtime_get_sync(mcspi->dev);
 	if (ret < 0)
 		return ret;
 
@@ -1076,7 +1101,8 @@ static int __devinit omap2_mcspi_master_setup(struct omap2_mcspi *mcspi)
 	ctx->wakeupenable = OMAP2_MCSPI_WAKEUPENABLE_WKEN;
 
 	omap2_mcspi_set_master_mode(master);
-	omap2_mcspi_disable_clocks(mcspi);
+	pm_runtime_mark_last_busy(mcspi->dev);
+	pm_runtime_put_autosuspend(mcspi->dev);
 	return 0;
 }
 
@@ -1116,7 +1142,7 @@ MODULE_DEVICE_TABLE(of, omap_mcspi_of_match);
 static int __devinit omap2_mcspi_probe(struct platform_device *pdev)
 {
 	struct spi_master	*master;
-	struct omap2_mcspi_platform_config *pdata;
+	const struct omap2_mcspi_platform_config *pdata;
 	struct omap2_mcspi	*mcspi;
 	struct resource		*r;
 	int			status = 0, i;
@@ -1124,6 +1150,7 @@ static int __devinit omap2_mcspi_probe(struct platform_device *pdev)
 	static int		bus_num = 1;
 	struct device_node	*node = pdev->dev.of_node;
 	const struct of_device_id *match;
+	struct pinctrl *pinctrl;
 
 	master = spi_alloc_master(&pdev->dev, sizeof *mcspi);
 	if (master == NULL) {
@@ -1219,6 +1246,11 @@ static int __devinit omap2_mcspi_probe(struct platform_device *pdev)
 	if (status < 0)
 		goto dma_chnl_free;
 
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(pinctrl))
+		dev_warn(&pdev->dev,
+			"pins are not configured from the driver\n");
+
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, SPI_AUTOSUSPEND_TIMEOUT);
 	pm_runtime_enable(&pdev->dev);
@@ -1228,19 +1260,16 @@ static int __devinit omap2_mcspi_probe(struct platform_device *pdev)
 
 	status = spi_register_master(master);
 	if (status < 0)
-		goto err_spi_register;
+		goto disable_pm;
 
 	return status;
 
-err_spi_register:
-	spi_master_put(master);
 disable_pm:
 	pm_runtime_disable(&pdev->dev);
 dma_chnl_free:
 	kfree(mcspi->dma_channels);
 free_master:
-	kfree(master);
-	platform_set_drvdata(pdev, NULL);
+	spi_master_put(master);
 	return status;
 }
 
@@ -1254,12 +1283,11 @@ static int __devexit omap2_mcspi_remove(struct platform_device *pdev)
 	mcspi = spi_master_get_devdata(master);
 	dma_channels = mcspi->dma_channels;
 
-	omap2_mcspi_disable_clocks(mcspi);
+	pm_runtime_put_sync(mcspi->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	spi_unregister_master(master);
 	kfree(dma_channels);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
@@ -1280,20 +1308,21 @@ static int omap2_mcspi_resume(struct device *dev)
 	struct omap2_mcspi_regs	*ctx = &mcspi->ctx;
 	struct omap2_mcspi_cs	*cs;
 
-	omap2_mcspi_enable_clocks(mcspi);
+	pm_runtime_get_sync(mcspi->dev);
 	list_for_each_entry(cs, &ctx->cs, node) {
 		if ((cs->chconf0 & OMAP2_MCSPI_CHCONF_FORCE) == 0) {
 			/*
 			 * We need to toggle CS state for OMAP take this
 			 * change in account.
 			 */
-			MOD_REG_BIT(cs->chconf0, OMAP2_MCSPI_CHCONF_FORCE, 1);
+			cs->chconf0 |= OMAP2_MCSPI_CHCONF_FORCE;
 			__raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
-			MOD_REG_BIT(cs->chconf0, OMAP2_MCSPI_CHCONF_FORCE, 0);
+			cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE;
 			__raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0);
 		}
 	}
-	omap2_mcspi_disable_clocks(mcspi);
+	pm_runtime_mark_last_busy(mcspi->dev);
+	pm_runtime_put_autosuspend(mcspi->dev);
 	return 0;
 }
 #else
diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 9b0caddce50..b17c09cf0a0 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -36,12 +36,6 @@
 #define ORION_SPI_CLK_PRESCALE_MASK	0x1F
 
 struct orion_spi {
-	struct work_struct	work;
-
-	/* Lock access to transfer list.	*/
-	spinlock_t		lock;
-
-	struct list_head	msg_queue;
 	struct spi_master	*master;
 	void __iomem		*base;
 	unsigned int		max_speed;
@@ -49,8 +43,6 @@ struct orion_spi {
 	struct clk              *clk;
 };
 
-static struct workqueue_struct *orion_spi_wq;
-
 static inline void __iomem *spi_reg(struct orion_spi *orion_spi, u32 reg)
 {
 	return orion_spi->base + reg;
@@ -277,73 +269,78 @@ out:
 }
 
 
-static void orion_spi_work(struct work_struct *work)
+static int orion_spi_transfer_one_message(struct spi_master *master,
+					   struct spi_message *m)
 {
-	struct orion_spi *orion_spi =
-		container_of(work, struct orion_spi, work);
-
-	spin_lock_irq(&orion_spi->lock);
-	while (!list_empty(&orion_spi->msg_queue)) {
-		struct spi_message *m;
-		struct spi_device *spi;
-		struct spi_transfer *t = NULL;
-		int par_override = 0;
-		int status = 0;
-		int cs_active = 0;
-
-		m = container_of(orion_spi->msg_queue.next, struct spi_message,
-				 queue);
+	struct orion_spi *orion_spi = spi_master_get_devdata(master);
+	struct spi_device *spi = m->spi;
+	struct spi_transfer *t = NULL;
+	int par_override = 0;
+	int status = 0;
+	int cs_active = 0;
 
-		list_del_init(&m->queue);
-		spin_unlock_irq(&orion_spi->lock);
+	/* Load defaults */
+	status = orion_spi_setup_transfer(spi, NULL);
 
-		spi = m->spi;
+	if (status < 0)
+		goto msg_done;
 
-		/* Load defaults */
-		status = orion_spi_setup_transfer(spi, NULL);
+	list_for_each_entry(t, &m->transfers, transfer_list) {
+		/* make sure buffer length is even when working in 16
+		 * bit mode*/
+		if ((t->bits_per_word == 16) && (t->len & 1)) {
+			dev_err(&spi->dev,
+				"message rejected : "
+				"odd data length %d while in 16 bit mode\n",
+				t->len);
+			status = -EIO;
+			goto msg_done;
+		}
 
-		if (status < 0)
+		if (t->speed_hz && t->speed_hz < orion_spi->min_speed) {
+			dev_err(&spi->dev,
+				"message rejected : "
+				"device min speed (%d Hz) exceeds "
+				"required transfer speed (%d Hz)\n",
+				orion_spi->min_speed, t->speed_hz);
+			status = -EIO;
 			goto msg_done;
+		}
 
-		list_for_each_entry(t, &m->transfers, transfer_list) {
-			if (par_override || t->speed_hz || t->bits_per_word) {
-				par_override = 1;
-				status = orion_spi_setup_transfer(spi, t);
-				if (status < 0)
-					break;
-				if (!t->speed_hz && !t->bits_per_word)
-					par_override = 0;
-			}
-
-			if (!cs_active) {
-				orion_spi_set_cs(orion_spi, 1);
-				cs_active = 1;
-			}
-
-			if (t->len)
-				m->actual_length +=
-					orion_spi_write_read(spi, t);
-
-			if (t->delay_usecs)
-				udelay(t->delay_usecs);
-
-			if (t->cs_change) {
-				orion_spi_set_cs(orion_spi, 0);
-				cs_active = 0;
-			}
+		if (par_override || t->speed_hz || t->bits_per_word) {
+			par_override = 1;
+			status = orion_spi_setup_transfer(spi, t);
+			if (status < 0)
+				break;
+			if (!t->speed_hz && !t->bits_per_word)
+				par_override = 0;
 		}
 
-msg_done:
-		if (cs_active)
-			orion_spi_set_cs(orion_spi, 0);
+		if (!cs_active) {
+			orion_spi_set_cs(orion_spi, 1);
+			cs_active = 1;
+		}
 
-		m->status = status;
-		m->complete(m->context);
+		if (t->len)
+			m->actual_length += orion_spi_write_read(spi, t);
 
-		spin_lock_irq(&orion_spi->lock);
+		if (t->delay_usecs)
+			udelay(t->delay_usecs);
+
+		if (t->cs_change) {
+			orion_spi_set_cs(orion_spi, 0);
+			cs_active = 0;
+		}
 	}
 
-	spin_unlock_irq(&orion_spi->lock);
+msg_done:
+	if (cs_active)
+		orion_spi_set_cs(orion_spi, 0);
+
+	m->status = status;
+	spi_finalize_current_message(master);
+
+	return 0;
 }
 
 static int __init orion_spi_reset(struct orion_spi *orion_spi)
@@ -376,75 +373,6 @@ static int orion_spi_setup(struct spi_device *spi)
 	return 0;
 }
 
-static int orion_spi_transfer(struct spi_device *spi, struct spi_message *m)
-{
-	struct orion_spi *orion_spi;
-	struct spi_transfer *t = NULL;
-	unsigned long flags;
-
-	m->actual_length = 0;
-	m->status = 0;
-
-	/* reject invalid messages and transfers */
-	if (list_empty(&m->transfers) || !m->complete)
-		return -EINVAL;
-
-	orion_spi = spi_master_get_devdata(spi->master);
-
-	list_for_each_entry(t, &m->transfers, transfer_list) {
-		unsigned int bits_per_word = spi->bits_per_word;
-
-		if (t->tx_buf == NULL && t->rx_buf == NULL && t->len) {
-			dev_err(&spi->dev,
-				"message rejected : "
-				"invalid transfer data buffers\n");
-			goto msg_rejected;
-		}
-
-		if (t->bits_per_word)
-			bits_per_word = t->bits_per_word;
-
-		if ((bits_per_word != 8) && (bits_per_word != 16)) {
-			dev_err(&spi->dev,
-				"message rejected : "
-				"invalid transfer bits_per_word (%d bits)\n",
-				bits_per_word);
-			goto msg_rejected;
-		}
-		/*make sure buffer length is even when working in 16 bit mode*/
-		if ((t->bits_per_word == 16) && (t->len & 1)) {
-			dev_err(&spi->dev,
-				"message rejected : "
-				"odd data length (%d) while in 16 bit mode\n",
-				t->len);
-			goto msg_rejected;
-		}
-
-		if (t->speed_hz && t->speed_hz < orion_spi->min_speed) {
-			dev_err(&spi->dev,
-				"message rejected : "
-				"device min speed (%d Hz) exceeds "
-				"required transfer speed (%d Hz)\n",
-				orion_spi->min_speed, t->speed_hz);
-			goto msg_rejected;
-		}
-	}
-
-
-	spin_lock_irqsave(&orion_spi->lock, flags);
-	list_add_tail(&m->queue, &orion_spi->msg_queue);
-	queue_work(orion_spi_wq, &orion_spi->work);
-	spin_unlock_irqrestore(&orion_spi->lock, flags);
-
-	return 0;
-msg_rejected:
-	/* Message rejected and not queued */
-	m->status = -EINVAL;
-	if (m->complete)
-		m->complete(m->context);
-	return -EINVAL;
-}
-
 static int __init orion_spi_probe(struct platform_device *pdev)
 {
 	struct spi_master *master;
@@ -474,7 +402,7 @@ static int __init orion_spi_probe(struct platform_device *pdev)
 	master->mode_bits = 0;
 
 	master->setup = orion_spi_setup;
-	master->transfer = orion_spi_transfer;
+	master->transfer_one_message = orion_spi_transfer_one_message;
 	master->num_chipselect = ORION_NUM_CHIPSELECTS;
 
 	dev_set_drvdata(&pdev->dev, master);
@@ -507,11 +435,6 @@ static int __init orion_spi_probe(struct platform_device *pdev)
 	}
 	spi->base = ioremap(r->start, SZ_1K);
 
-	INIT_WORK(&spi->work, orion_spi_work);
-
-	spin_lock_init(&spi->lock);
-	INIT_LIST_HEAD(&spi->msg_queue);
-
 	if (orion_spi_reset(spi) < 0)
 		goto out_rel_mem;
 
@@ -536,14 +459,12 @@ out:
 static int __exit orion_spi_remove(struct platform_device *pdev)
 {
 	struct spi_master *master;
-	struct orion_spi *spi;
 	struct resource *r;
+	struct orion_spi *spi;
 
 	master = dev_get_drvdata(&pdev->dev);
 	spi = spi_master_get_devdata(master);
 
-	cancel_work_sync(&spi->work);
-
 	clk_disable_unprepare(spi->clk);
 	clk_put(spi->clk);
 
@@ -574,21 +495,13 @@ static struct platform_driver orion_spi_driver = {
 
 static int __init orion_spi_init(void)
 {
-	orion_spi_wq = create_singlethread_workqueue(
-				orion_spi_driver.driver.name);
-	if (orion_spi_wq == NULL)
-		return -ENOMEM;
-
 	return platform_driver_probe(&orion_spi_driver, orion_spi_probe);
 }
 module_init(orion_spi_init);
 
 static void __exit orion_spi_exit(void)
 {
-	flush_workqueue(orion_spi_wq);
 	platform_driver_unregister(&orion_spi_driver);
-
-	destroy_workqueue(orion_spi_wq);
 }
 module_exit(orion_spi_exit);
 
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index aab518ec2bb..919464102d3 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1,7 +1,7 @@
 /*
  * A driver for the ARM PL022 PrimeCell SSP/SPI bus master.
  *
- * Copyright (C) 2008-2009 ST-Ericsson AB
+ * Copyright (C) 2008-2012 ST-Ericsson AB
  * Copyright (C) 2006 STMicroelectronics Pvt. Ltd.
  *
  * Author: Linus Walleij <linus.walleij@stericsson.com>
@@ -40,6 +40,9 @@
 #include <linux/dma-mapping.h>
 #include <linux/scatterlist.h>
 #include <linux/pm_runtime.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/pinctrl/consumer.h>
 
 /*
  * This macro is used to define some register default values.
@@ -356,6 +359,8 @@ struct vendor_data {
  * @sgt_rx: scattertable for the RX transfer
  * @sgt_tx: scattertable for the TX transfer
  * @dummypage: a dummy page used for driving data on the bus with DMA
+ * @cur_cs: current chip select (gpio)
+ * @chipselects: list of chipselects (gpios)
  */
 struct pl022 {
 	struct amba_device		*adev;
@@ -363,6 +368,10 @@ struct pl022 {
 	resource_size_t			phybase;
 	void __iomem			*virtbase;
 	struct clk			*clk;
+	/* Two optional pin states - default & sleep */
+	struct pinctrl			*pinctrl;
+	struct pinctrl_state		*pins_default;
+	struct pinctrl_state		*pins_sleep;
 	struct spi_master		*master;
 	struct pl022_ssp_controller	*master_info;
 	/* Message per-transfer pump */
@@ -389,6 +398,8 @@ struct pl022 {
 	char				*dummypage;
 	bool				dma_running;
 #endif
+	int cur_cs;
+	int *chipselects;
 };
 
 /**
@@ -433,6 +444,14 @@ static void null_cs_control(u32 command)
 	pr_debug("pl022: dummy chip select control, CS=0x%x\n", command);
 }
 
+static void pl022_cs_control(struct pl022 *pl022, u32 command)
+{
+	if (gpio_is_valid(pl022->cur_cs))
+		gpio_set_value(pl022->cur_cs, command);
+	else
+		pl022->cur_chip->cs_control(command);
+}
+
 /**
  * giveback - current spi_message is over, schedule next message and call
  * callback of this message. Assumes that caller already
@@ -479,7 +498,7 @@ static void giveback(struct pl022 *pl022)
 		if (next_msg && next_msg->spi != pl022->cur_msg->spi)
 			next_msg = NULL;
 		if (!next_msg || pl022->cur_msg->state == STATE_ERROR)
-			pl022->cur_chip->cs_control(SSP_CHIP_DESELECT);
+			pl022_cs_control(pl022, SSP_CHIP_DESELECT);
 		else
 			pl022->next_msg_cs_active = true;
 
@@ -818,8 +837,7 @@ static void dma_callback(void *data)
 	/* Update total bytes transferred */
 	msg->actual_length += pl022->cur_transfer->len;
 	if (pl022->cur_transfer->cs_change)
-		pl022->cur_chip->
-			cs_control(SSP_CHIP_DESELECT);
+		pl022_cs_control(pl022, SSP_CHIP_DESELECT);
 
 	/* Move to next transfer */
 	msg->state = next_transfer(pl022);
@@ -1252,8 +1270,7 @@ static irqreturn_t pl022_interrupt_handler(int irq, void *dev_id)
 		/* Update total bytes transferred */
 		msg->actual_length += pl022->cur_transfer->len;
 		if (pl022->cur_transfer->cs_change)
-			pl022->cur_chip->
-				cs_control(SSP_CHIP_DESELECT);
+			pl022_cs_control(pl022, SSP_CHIP_DESELECT);
 		/* Move to next transfer */
 		msg->state = next_transfer(pl022);
 		tasklet_schedule(&pl022->pump_transfers);
@@ -1338,7 +1355,7 @@ static void pump_transfers(unsigned long data)
 
 		/* Reselect chip select only if cs_change was requested */
 		if (previous->cs_change)
-			pl022->cur_chip->cs_control(SSP_CHIP_SELECT);
+			pl022_cs_control(pl022, SSP_CHIP_SELECT);
 	} else {
 		/* STATE_START */
 		message->state = STATE_RUNNING;
@@ -1377,7 +1394,7 @@ static void do_interrupt_dma_transfer(struct pl022 *pl022)
 
 	/* Enable target chip, if not already active */
 	if (!pl022->next_msg_cs_active)
-		pl022->cur_chip->cs_control(SSP_CHIP_SELECT);
+		pl022_cs_control(pl022, SSP_CHIP_SELECT);
 
 	if (set_up_next_transfer(pl022, pl022->cur_transfer)) {
 		/* Error path */
@@ -1429,12 +1446,12 @@ static void do_polling_transfer(struct pl022 *pl022)
 			if (previous->delay_usecs)
 				udelay(previous->delay_usecs);
 			if (previous->cs_change)
-				pl022->cur_chip->cs_control(SSP_CHIP_SELECT);
+				pl022_cs_control(pl022, SSP_CHIP_SELECT);
 		} else {
 			/* STATE_START */
 			message->state = STATE_RUNNING;
 			if (!pl022->next_msg_cs_active)
-				pl022->cur_chip->cs_control(SSP_CHIP_SELECT);
+				pl022_cs_control(pl022, SSP_CHIP_SELECT);
 		}
 
 		/* Configuration Changing Per Transfer */
@@ -1466,7 +1483,7 @@ static void do_polling_transfer(struct pl022 *pl022)
 		/* Update total byte transferred */
 		message->actual_length += pl022->cur_transfer->len;
 		if (pl022->cur_transfer->cs_change)
-			pl022->cur_chip->cs_control(SSP_CHIP_DESELECT);
+			pl022_cs_control(pl022, SSP_CHIP_DESELECT);
 		/* Move to next transfer */
 		message->state = next_transfer(pl022);
 	}
@@ -1495,6 +1512,7 @@ static int pl022_transfer_one_message(struct spi_master *master,
 
 	/* Setup the SPI using the per chip configuration */
 	pl022->cur_chip = spi_get_ctldata(msg->spi);
+	pl022->cur_cs = pl022->chipselects[msg->spi->chip_select];
 
 	restore_state(pl022);
 	flush(pl022);
@@ -1766,12 +1784,14 @@ static const struct pl022_config_chip pl022_default_chip_info = {
 static int pl022_setup(struct spi_device *spi)
 {
 	struct pl022_config_chip const *chip_info;
+	struct pl022_config_chip chip_info_dt;
 	struct chip_data *chip;
 	struct ssp_clock_params clk_freq = { .cpsdvsr = 0, .scr = 0};
 	int status = 0;
 	struct pl022 *pl022 = spi_master_get_devdata(spi->master);
 	unsigned int bits = spi->bits_per_word;
 	u32 tmp;
+	struct device_node *np = spi->dev.of_node;
 
 	if (!spi->max_speed_hz)
 		return -EINVAL;
@@ -1794,10 +1814,32 @@ static int pl022_setup(struct spi_device *spi)
 	chip_info = spi->controller_data;
 
 	if (chip_info == NULL) {
-		chip_info = &pl022_default_chip_info;
-		/* spi_board_info.controller_data not is supplied */
-		dev_dbg(&spi->dev,
-			"using default controller_data settings\n");
+		if (np) {
+			chip_info_dt = pl022_default_chip_info;
+
+			chip_info_dt.hierarchy = SSP_MASTER;
+			of_property_read_u32(np, "pl022,interface",
+				&chip_info_dt.iface);
+			of_property_read_u32(np, "pl022,com-mode",
+				&chip_info_dt.com_mode);
+			of_property_read_u32(np, "pl022,rx-level-trig",
+				&chip_info_dt.rx_lev_trig);
+			of_property_read_u32(np, "pl022,tx-level-trig",
+				&chip_info_dt.tx_lev_trig);
+			of_property_read_u32(np, "pl022,ctrl-len",
+				&chip_info_dt.ctrl_len);
+			of_property_read_u32(np, "pl022,wait-state",
+				&chip_info_dt.wait_state);
+			of_property_read_u32(np, "pl022,duplex",
+				&chip_info_dt.duplex);
+
+			chip_info = &chip_info_dt;
+		} else {
+			chip_info = &pl022_default_chip_info;
+			/* spi_board_info.controller_data not is supplied */
+			dev_dbg(&spi->dev,
+				"using default controller_data settings\n");
+		}
 	} else
 		dev_dbg(&spi->dev,
 			"using user supplied controller_data settings\n");
@@ -1840,8 +1882,9 @@ static int pl022_setup(struct spi_device *spi)
 	chip->xfer_type = chip_info->com_mode;
 	if (!chip_info->cs_control) {
 		chip->cs_control = null_cs_control;
-		dev_warn(&spi->dev,
-			 "chip select function is NULL for this chip\n");
+		if (!gpio_is_valid(pl022->chipselects[spi->chip_select]))
+			dev_warn(&spi->dev,
+				 "invalid chip select\n");
 	} else
 		chip->cs_control = chip_info->cs_control;
 
@@ -1986,6 +2029,34 @@ static void pl022_cleanup(struct spi_device *spi)
 	kfree(chip);
 }
 
+static struct pl022_ssp_controller *
+pl022_platform_data_dt_get(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct pl022_ssp_controller *pd;
+	u32 tmp;
+
+	if (!np) {
+		dev_err(dev, "no dt node defined\n");
+		return NULL;
+	}
+
+	pd = devm_kzalloc(dev, sizeof(struct pl022_ssp_controller), GFP_KERNEL);
+	if (!pd) {
+		dev_err(dev, "cannot allocate platform data memory\n");
+		return NULL;
+	}
+
+	pd->bus_id = -1;
+	of_property_read_u32(np, "num-cs", &tmp);
+	pd->num_chipselect = tmp;
+	of_property_read_u32(np, "pl022,autosuspend-delay",
+			     &pd->autosuspend_delay);
+	pd->rt = of_property_read_bool(np, "pl022,rt");
+
+	return pd;
+}
+
 static int __devinit
 pl022_probe(struct amba_device *adev, const struct amba_id *id)
 {
@@ -1993,22 +2064,31 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 	struct pl022_ssp_controller *platform_info = adev->dev.platform_data;
 	struct spi_master *master;
 	struct pl022 *pl022 = NULL;	/*Data for this driver */
-	int status = 0;
+	struct device_node *np = adev->dev.of_node;
+	int status = 0, i, num_cs;
 
 	dev_info(&adev->dev,
 		 "ARM PL022 driver, device ID: 0x%08x\n", adev->periphid);
-	if (platform_info == NULL) {
-		dev_err(&adev->dev, "probe - no platform data supplied\n");
-		status = -ENODEV;
-		goto err_no_pdata;
+	if (!platform_info && IS_ENABLED(CONFIG_OF))
+		platform_info = pl022_platform_data_dt_get(dev);
+
+	if (!platform_info) {
+		dev_err(dev, "probe: no platform data defined\n");
+		return -ENODEV;
+	}
+
+	if (platform_info->num_chipselect) {
+		num_cs = platform_info->num_chipselect;
+	} else {
+		dev_err(dev, "probe: no chip select defined\n");
+		return -ENODEV;
 	}
 
 	/* Allocate master with space for data */
 	master = spi_alloc_master(dev, sizeof(struct pl022));
 	if (master == NULL) {
 		dev_err(&adev->dev, "probe - cannot alloc SPI master\n");
-		status = -ENOMEM;
-		goto err_no_master;
+		return -ENOMEM;
 	}
 
 	pl022 = spi_master_get_devdata(master);
@@ -2016,19 +2096,71 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 	pl022->master_info = platform_info;
 	pl022->adev = adev;
 	pl022->vendor = id->data;
+	pl022->chipselects = devm_kzalloc(dev, num_cs * sizeof(int),
+					  GFP_KERNEL);
+
+	pl022->pinctrl = devm_pinctrl_get(dev);
+	if (IS_ERR(pl022->pinctrl)) {
+		status = PTR_ERR(pl022->pinctrl);
+		goto err_no_pinctrl;
+	}
+
+	pl022->pins_default = pinctrl_lookup_state(pl022->pinctrl,
+						 PINCTRL_STATE_DEFAULT);
+	/* enable pins to be muxed in and configured */
+	if (!IS_ERR(pl022->pins_default)) {
+		status = pinctrl_select_state(pl022->pinctrl,
+				pl022->pins_default);
+		if (status)
+			dev_err(dev, "could not set default pins\n");
+	} else
+		dev_err(dev, "could not get default pinstate\n");
+
+	pl022->pins_sleep = pinctrl_lookup_state(pl022->pinctrl,
+					       PINCTRL_STATE_SLEEP);
+	if (IS_ERR(pl022->pins_sleep))
+		dev_dbg(dev, "could not get sleep pinstate\n");
 
 	/*
 	 * Bus Number Which has been Assigned to this SSP controller
 	 * on this board
 	 */
 	master->bus_num = platform_info->bus_id;
-	master->num_chipselect = platform_info->num_chipselect;
+	master->num_chipselect = num_cs;
 	master->cleanup = pl022_cleanup;
 	master->setup = pl022_setup;
 	master->prepare_transfer_hardware = pl022_prepare_transfer_hardware;
 	master->transfer_one_message = pl022_transfer_one_message;
 	master->unprepare_transfer_hardware = pl022_unprepare_transfer_hardware;
 	master->rt = platform_info->rt;
+	master->dev.of_node = dev->of_node;
+
+	if (platform_info->num_chipselect && platform_info->chipselects) {
+		for (i = 0; i < num_cs; i++)
+			pl022->chipselects[i] = platform_info->chipselects[i];
+	} else if (IS_ENABLED(CONFIG_OF)) {
+		for (i = 0; i < num_cs; i++) {
+			int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
+
+			if (cs_gpio == -EPROBE_DEFER) {
+				status = -EPROBE_DEFER;
+				goto err_no_gpio;
+			}
+
+			pl022->chipselects[i] = cs_gpio;
+
+			if (gpio_is_valid(cs_gpio)) {
+				if (devm_gpio_request(dev, cs_gpio, "ssp-pl022"))
+					dev_err(&adev->dev,
+						"could not request %d gpio\n",
+						cs_gpio);
+				else if (gpio_direction_output(cs_gpio, 1))
+					dev_err(&adev->dev,
+						"could set gpio %d as output\n",
+						cs_gpio);
+			}
+		}
+	}
 
 	/*
 	 * Supports mode 0-3, loopback, and active low CS. Transfers are
@@ -2045,7 +2177,8 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 		goto err_no_ioregion;
 
 	pl022->phybase = adev->res.start;
-	pl022->virtbase = ioremap(adev->res.start, resource_size(&adev->res));
+	pl022->virtbase = devm_ioremap(dev, adev->res.start,
+				       resource_size(&adev->res));
 	if (pl022->virtbase == NULL) {
 		status = -ENOMEM;
 		goto err_no_ioremap;
@@ -2053,10 +2186,9 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 	printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n",
 	       adev->res.start, pl022->virtbase);
 
-	pm_runtime_enable(dev);
 	pm_runtime_resume(dev);
 
-	pl022->clk = clk_get(&adev->dev, NULL);
+	pl022->clk = devm_clk_get(&adev->dev, NULL);
 	if (IS_ERR(pl022->clk)) {
 		status = PTR_ERR(pl022->clk);
 		dev_err(&adev->dev, "could not retrieve SSP/SPI bus clock\n");
@@ -2084,8 +2216,8 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 	       SSP_CR1(pl022->virtbase));
 	load_ssp_default_config(pl022);
 
-	status = request_irq(adev->irq[0], pl022_interrupt_handler, 0, "pl022",
-			     pl022);
+	status = devm_request_irq(dev, adev->irq[0], pl022_interrupt_handler,
+				  0, "pl022", pl022);
 	if (status < 0) {
 		dev_err(&adev->dev, "probe - cannot get IRQ (%d)\n", status);
 		goto err_no_irq;
@@ -2125,22 +2257,18 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
  err_spi_register:
 	if (platform_info->enable_dma)
 		pl022_dma_remove(pl022);
-
-	free_irq(adev->irq[0], pl022);
  err_no_irq:
 	clk_disable(pl022->clk);
  err_no_clk_en:
 	clk_unprepare(pl022->clk);
  err_clk_prep:
-	clk_put(pl022->clk);
  err_no_clk:
-	iounmap(pl022->virtbase);
  err_no_ioremap:
 	amba_release_regions(adev);
  err_no_ioregion:
+ err_no_gpio:
+ err_no_pinctrl:
 	spi_master_put(master);
- err_no_master:
- err_no_pdata:
 	return status;
 }
 
@@ -2162,20 +2290,55 @@ pl022_remove(struct amba_device *adev)
 	if (pl022->master_info->enable_dma)
 		pl022_dma_remove(pl022);
 
-	free_irq(adev->irq[0], pl022);
 	clk_disable(pl022->clk);
 	clk_unprepare(pl022->clk);
-	clk_put(pl022->clk);
 	pm_runtime_disable(&adev->dev);
-	iounmap(pl022->virtbase);
 	amba_release_regions(adev);
 	tasklet_disable(&pl022->pump_transfers);
 	spi_unregister_master(pl022->master);
-	spi_master_put(pl022->master);
 	amba_set_drvdata(adev, NULL);
 	return 0;
 }
 
+#if defined(CONFIG_SUSPEND) || defined(CONFIG_PM_RUNTIME)
+/*
+ * These two functions are used from both suspend/resume and
+ * the runtime counterparts to handle external resources like
+ * clocks, pins and regulators when going to sleep.
+ */
+static void pl022_suspend_resources(struct pl022 *pl022)
+{
+	int ret;
+
+	clk_disable(pl022->clk);
+
+	/* Optionally let pins go into sleep states */
+	if (!IS_ERR(pl022->pins_sleep)) {
+		ret = pinctrl_select_state(pl022->pinctrl,
+					   pl022->pins_sleep);
+		if (ret)
+			dev_err(&pl022->adev->dev,
+				"could not set pins to sleep state\n");
+	}
+}
+
+static void pl022_resume_resources(struct pl022 *pl022)
+{
+	int ret;
+
+	/* Optionaly enable pins to be muxed in and configured */
+	if (!IS_ERR(pl022->pins_default)) {
+		ret = pinctrl_select_state(pl022->pinctrl,
+					   pl022->pins_default);
+		if (ret)
+			dev_err(&pl022->adev->dev,
+				"could not set default pins\n");
+	}
+
+	clk_enable(pl022->clk);
+}
+#endif
+
 #ifdef CONFIG_SUSPEND
 static int pl022_suspend(struct device *dev)
 {
@@ -2187,6 +2350,7 @@ static int pl022_suspend(struct device *dev)
 		dev_warn(dev, "cannot suspend master\n");
 		return ret;
 	}
+	pl022_suspend_resources(pl022);
 
 	dev_dbg(dev, "suspended\n");
 	return 0;
@@ -2197,6 +2361,8 @@ static int pl022_resume(struct device *dev)
 	struct pl022 *pl022 = dev_get_drvdata(dev);
 	int ret;
 
+	pl022_resume_resources(pl022);
+
 	/* Start the queue running */
 	ret = spi_master_resume(pl022->master);
 	if (ret)
@@ -2213,8 +2379,7 @@ static int pl022_runtime_suspend(struct device *dev)
 {
 	struct pl022 *pl022 = dev_get_drvdata(dev);
 
-	clk_disable(pl022->clk);
-
+	pl022_suspend_resources(pl022);
 	return 0;
 }
 
@@ -2222,8 +2387,7 @@ static int pl022_runtime_resume(struct device *dev)
 {
 	struct pl022 *pl022 = dev_get_drvdata(dev);
 
-	clk_enable(pl022->clk);
-
+	pl022_resume_resources(pl022);
 	return 0;
 }
 #endif
diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 75ac9d48ef4..7a85f22b647 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -101,7 +101,7 @@ struct spi_ppc4xx_regs {
 	u8 dummy;
 	/*
 	 * Clock divisor modulus register
-	 * This uses the follwing formula:
+	 * This uses the following formula:
 	 *    SCPClkOut = OPBCLK/(4(CDM + 1))
 	 * or
 	 *    CDM = (OPBCLK/4*SCPClkOut) - 1
@@ -201,7 +201,7 @@ static int spi_ppc4xx_setupxfer(struct spi_device *spi, struct spi_transfer *t)
 		return -EINVAL;
 	}
 
-	/* Write new configration */
+	/* Write new configuration */
 	out_8(&hw->regs->mode, cs->mode);
 
 	/* Set the clock */
diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c
index 8ee7d790ce4..a2a080b7f42 100644
--- a/drivers/spi/spi-s3c24xx.c
+++ b/drivers/spi/spi-s3c24xx.c
@@ -611,6 +611,7 @@ static int __devinit s3c24xx_spi_probe(struct platform_device *pdev)
 	if (!pdata->set_cs) {
 		if (pdata->pin_cs < 0) {
 			dev_err(&pdev->dev, "No chipselect pin\n");
+			err = -EINVAL;
 			goto err_register;
 		}
 
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 12b8c9c608e..1a81c90a4a7 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -32,7 +32,7 @@
 #include <linux/of_gpio.h>
 
 #include <mach/dma.h>
-#include <plat/s3c64xx-spi.h>
+#include <linux/platform_data/spi-s3c64xx.h>
 
 #define MAX_SPI_PORTS		3
 
@@ -826,7 +826,7 @@ static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata(
 				struct spi_device *spi)
 {
 	struct s3c64xx_spi_csinfo *cs;
-	struct device_node *slave_np, *data_np;
+	struct device_node *slave_np, *data_np = NULL;
 	u32 fb_delay = 0;
 
 	slave_np = spi->dev.of_node;
@@ -977,7 +977,8 @@ err_msgq:
 	spi_set_ctldata(spi, NULL);
 
 err_gpio_req:
-	kfree(cs);
+	if (spi->dev.of_node)
+		kfree(cs);
 
 	return err;
 }
@@ -1410,7 +1411,7 @@ static int s3c64xx_spi_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int s3c64xx_spi_suspend(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 
 	spi_master_suspend(master);
@@ -1429,7 +1430,7 @@ static int s3c64xx_spi_suspend(struct device *dev)
 
 static int s3c64xx_spi_resume(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
 
@@ -1453,7 +1454,7 @@ static int s3c64xx_spi_resume(struct device *dev)
 #ifdef CONFIG_PM_RUNTIME
 static int s3c64xx_spi_runtime_suspend(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 
 	clk_disable(sdd->clk);
@@ -1464,7 +1465,7 @@ static int s3c64xx_spi_runtime_suspend(struct device *dev)
 
 static int s3c64xx_spi_runtime_resume(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 
 	clk_enable(sdd->src_clk);
@@ -1480,40 +1481,40 @@ static const struct dev_pm_ops s3c64xx_spi_pm = {
 			   s3c64xx_spi_runtime_resume, NULL)
 };
 
-struct s3c64xx_spi_port_config s3c2443_spi_port_config = {
+static struct s3c64xx_spi_port_config s3c2443_spi_port_config = {
 	.fifo_lvl_mask	= { 0x7f },
 	.rx_lvl_offset	= 13,
 	.tx_st_done	= 21,
 	.high_speed	= true,
 };
 
-struct s3c64xx_spi_port_config s3c6410_spi_port_config = {
+static struct s3c64xx_spi_port_config s3c6410_spi_port_config = {
 	.fifo_lvl_mask	= { 0x7f, 0x7F },
 	.rx_lvl_offset	= 13,
 	.tx_st_done	= 21,
 };
 
-struct s3c64xx_spi_port_config s5p64x0_spi_port_config = {
+static struct s3c64xx_spi_port_config s5p64x0_spi_port_config = {
 	.fifo_lvl_mask	= { 0x1ff, 0x7F },
 	.rx_lvl_offset	= 15,
 	.tx_st_done	= 25,
 };
 
-struct s3c64xx_spi_port_config s5pc100_spi_port_config = {
+static struct s3c64xx_spi_port_config s5pc100_spi_port_config = {
 	.fifo_lvl_mask	= { 0x7f, 0x7F },
 	.rx_lvl_offset	= 13,
 	.tx_st_done	= 21,
 	.high_speed	= true,
 };
 
-struct s3c64xx_spi_port_config s5pv210_spi_port_config = {
+static struct s3c64xx_spi_port_config s5pv210_spi_port_config = {
 	.fifo_lvl_mask	= { 0x1ff, 0x7F },
 	.rx_lvl_offset	= 15,
 	.tx_st_done	= 25,
 	.high_speed	= true,
 };
 
-struct s3c64xx_spi_port_config exynos4_spi_port_config = {
+static struct s3c64xx_spi_port_config exynos4_spi_port_config = {
 	.fifo_lvl_mask	= { 0x1ff, 0x7F, 0x7F },
 	.rx_lvl_offset	= 15,
 	.tx_st_done	= 25,
diff --git a/drivers/spi/spi-sc18is602.c b/drivers/spi/spi-sc18is602.c
new file mode 100644
index 00000000000..9eda21d739c
--- /dev/null
+++ b/drivers/spi/spi-sc18is602.c
@@ -0,0 +1,364 @@
+/*
+ * NXP SC18IS602/603 SPI driver
+ *
+ * Copyright (C) Guenter Roeck <linux@roeck-us.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/platform_data/sc18is602.h>
+
+enum chips { sc18is602, sc18is602b, sc18is603 };
+
+#define SC18IS602_BUFSIZ		200
+#define SC18IS602_CLOCK			7372000
+
+#define SC18IS602_MODE_CPHA		BIT(2)
+#define SC18IS602_MODE_CPOL		BIT(3)
+#define SC18IS602_MODE_LSB_FIRST	BIT(5)
+#define SC18IS602_MODE_CLOCK_DIV_4	0x0
+#define SC18IS602_MODE_CLOCK_DIV_16	0x1
+#define SC18IS602_MODE_CLOCK_DIV_64	0x2
+#define SC18IS602_MODE_CLOCK_DIV_128	0x3
+
+struct sc18is602 {
+	struct spi_master	*master;
+	struct device		*dev;
+	u8			ctrl;
+	u32			freq;
+	u32			speed;
+
+	/* I2C data */
+	struct i2c_client	*client;
+	enum chips		id;
+	u8			buffer[SC18IS602_BUFSIZ + 1];
+	int			tlen;	/* Data queued for tx in buffer */
+	int			rindex;	/* Receive data index in buffer */
+};
+
+static int sc18is602_wait_ready(struct sc18is602 *hw, int len)
+{
+	int i, err;
+	int usecs = 1000000 * len / hw->speed + 1;
+	u8 dummy[1];
+
+	for (i = 0; i < 10; i++) {
+		err = i2c_master_recv(hw->client, dummy, 1);
+		if (err >= 0)
+			return 0;
+		usleep_range(usecs, usecs * 2);
+	}
+	return -ETIMEDOUT;
+}
+
+static int sc18is602_txrx(struct sc18is602 *hw, struct spi_message *msg,
+			  struct spi_transfer *t, bool do_transfer)
+{
+	unsigned int len = t->len;
+	int ret;
+
+	if (hw->tlen == 0) {
+		/* First byte (I2C command) is chip select */
+		hw->buffer[0] = 1 << msg->spi->chip_select;
+		hw->tlen = 1;
+		hw->rindex = 0;
+	}
+	/*
+	 * We can not immediately send data to the chip, since each I2C message
+	 * resembles a full SPI message (from CS active to CS inactive).
+	 * Enqueue messages up to the first read or until do_transfer is true.
+	 */
+	if (t->tx_buf) {
+		memcpy(&hw->buffer[hw->tlen], t->tx_buf, len);
+		hw->tlen += len;
+		if (t->rx_buf)
+			do_transfer = true;
+		else
+			hw->rindex = hw->tlen - 1;
+	} else if (t->rx_buf) {
+		/*
+		 * For receive-only transfers we still need to perform a dummy
+		 * write to receive data from the SPI chip.
+		 * Read data starts at the end of transmit data (minus 1 to
+		 * account for CS).
+		 */
+		hw->rindex = hw->tlen - 1;
+		memset(&hw->buffer[hw->tlen], 0, len);
+		hw->tlen += len;
+		do_transfer = true;
+	}
+
+	if (do_transfer && hw->tlen > 1) {
+		ret = sc18is602_wait_ready(hw, SC18IS602_BUFSIZ);
+		if (ret < 0)
+			return ret;
+		ret = i2c_master_send(hw->client, hw->buffer, hw->tlen);
+		if (ret < 0)
+			return ret;
+		if (ret != hw->tlen)
+			return -EIO;
+
+		if (t->rx_buf) {
+			int rlen = hw->rindex + len;
+
+			ret = sc18is602_wait_ready(hw, hw->tlen);
+			if (ret < 0)
+				return ret;
+			ret = i2c_master_recv(hw->client, hw->buffer, rlen);
+			if (ret < 0)
+				return ret;
+			if (ret != rlen)
+				return -EIO;
+			memcpy(t->rx_buf, &hw->buffer[hw->rindex], len);
+		}
+		hw->tlen = 0;
+	}
+	return len;
+}
+
+static int sc18is602_setup_transfer(struct sc18is602 *hw, u32 hz, u8 mode)
+{
+	u8 ctrl = 0;
+	int ret;
+
+	if (mode & SPI_CPHA)
+		ctrl |= SC18IS602_MODE_CPHA;
+	if (mode & SPI_CPOL)
+		ctrl |= SC18IS602_MODE_CPOL;
+	if (mode & SPI_LSB_FIRST)
+		ctrl |= SC18IS602_MODE_LSB_FIRST;
+
+	/* Find the closest clock speed */
+	if (hz >= hw->freq / 4) {
+		ctrl |= SC18IS602_MODE_CLOCK_DIV_4;
+		hw->speed = hw->freq / 4;
+	} else if (hz >= hw->freq / 16) {
+		ctrl |= SC18IS602_MODE_CLOCK_DIV_16;
+		hw->speed = hw->freq / 16;
+	} else if (hz >= hw->freq / 64) {
+		ctrl |= SC18IS602_MODE_CLOCK_DIV_64;
+		hw->speed = hw->freq / 64;
+	} else {
+		ctrl |= SC18IS602_MODE_CLOCK_DIV_128;
+		hw->speed = hw->freq / 128;
+	}
+
+	/*
+	 * Don't do anything if the control value did not change. The initial
+	 * value of 0xff for hw->ctrl ensures that the correct mode will be set
+	 * with the first call to this function.
+	 */
+	if (ctrl == hw->ctrl)
+		return 0;
+
+	ret = i2c_smbus_write_byte_data(hw->client, 0xf0, ctrl);
+	if (ret < 0)
+		return ret;
+
+	hw->ctrl = ctrl;
+
+	return 0;
+}
+
+static int sc18is602_check_transfer(struct spi_device *spi,
+				    struct spi_transfer *t, int tlen)
+{
+	int bpw;
+	uint32_t hz;
+
+	if (t && t->len + tlen > SC18IS602_BUFSIZ)
+		return -EINVAL;
+
+	bpw = spi->bits_per_word;
+	if (t && t->bits_per_word)
+		bpw = t->bits_per_word;
+	if (bpw != 8)
+		return -EINVAL;
+
+	hz = spi->max_speed_hz;
+	if (t && t->speed_hz)
+		hz = t->speed_hz;
+	if (hz == 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int sc18is602_transfer_one(struct spi_master *master,
+				  struct spi_message *m)
+{
+	struct sc18is602 *hw = spi_master_get_devdata(master);
+	struct spi_device *spi = m->spi;
+	struct spi_transfer *t;
+	int status = 0;
+
+	/* SC18IS602 does not support CS2 */
+	if (hw->id == sc18is602 && spi->chip_select == 2) {
+		status = -ENXIO;
+		goto error;
+	}
+
+	hw->tlen = 0;
+	list_for_each_entry(t, &m->transfers, transfer_list) {
+		u32 hz = t->speed_hz ? : spi->max_speed_hz;
+		bool do_transfer;
+
+		status = sc18is602_check_transfer(spi, t, hw->tlen);
+		if (status < 0)
+			break;
+
+		status = sc18is602_setup_transfer(hw, hz, spi->mode);
+		if (status < 0)
+			break;
+
+		do_transfer = t->cs_change || list_is_last(&t->transfer_list,
+							   &m->transfers);
+
+		if (t->len) {
+			status = sc18is602_txrx(hw, m, t, do_transfer);
+			if (status < 0)
+				break;
+			m->actual_length += status;
+		}
+		status = 0;
+
+		if (t->delay_usecs)
+			udelay(t->delay_usecs);
+	}
+error:
+	m->status = status;
+	spi_finalize_current_message(master);
+
+	return status;
+}
+
+static int sc18is602_setup(struct spi_device *spi)
+{
+	if (!spi->bits_per_word)
+		spi->bits_per_word = 8;
+
+	if (spi->mode & ~(SPI_CPHA | SPI_CPOL | SPI_LSB_FIRST))
+		return -EINVAL;
+
+	return sc18is602_check_transfer(spi, NULL, 0);
+}
+
+static int sc18is602_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct device_node *np = dev->of_node;
+	struct sc18is602_platform_data *pdata = dev_get_platdata(dev);
+	struct sc18is602 *hw;
+	struct spi_master *master;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C |
+				     I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+		return -EINVAL;
+
+	master = spi_alloc_master(dev, sizeof(struct sc18is602));
+	if (!master)
+		return -ENOMEM;
+
+	hw = spi_master_get_devdata(master);
+	i2c_set_clientdata(client, hw);
+
+	hw->master = master;
+	hw->client = client;
+	hw->dev = dev;
+	hw->ctrl = 0xff;
+
+	hw->id = id->driver_data;
+
+	switch (hw->id) {
+	case sc18is602:
+	case sc18is602b:
+		master->num_chipselect = 4;
+		hw->freq = SC18IS602_CLOCK;
+		break;
+	case sc18is603:
+		master->num_chipselect = 2;
+		if (pdata) {
+			hw->freq = pdata->clock_frequency;
+		} else {
+			const __be32 *val;
+			int len;
+
+			val = of_get_property(np, "clock-frequency", &len);
+			if (val && len >= sizeof(__be32))
+				hw->freq = be32_to_cpup(val);
+		}
+		if (!hw->freq)
+			hw->freq = SC18IS602_CLOCK;
+		break;
+	}
+	master->bus_num = client->adapter->nr;
+	master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_LSB_FIRST;
+	master->setup = sc18is602_setup;
+	master->transfer_one_message = sc18is602_transfer_one;
+	master->dev.of_node = np;
+
+	error = spi_register_master(master);
+	if (error)
+		goto error_reg;
+
+	return 0;
+
+error_reg:
+	spi_master_put(master);
+	return error;
+}
+
+static int sc18is602_remove(struct i2c_client *client)
+{
+	struct sc18is602 *hw = i2c_get_clientdata(client);
+	struct spi_master *master = hw->master;
+
+	spi_unregister_master(master);
+
+	return 0;
+}
+
+static const struct i2c_device_id sc18is602_id[] = {
+	{ "sc18is602", sc18is602 },
+	{ "sc18is602b", sc18is602b },
+	{ "sc18is603", sc18is603 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, sc18is602_id);
+
+static struct i2c_driver sc18is602_driver = {
+	.driver = {
+		.name = "sc18is602",
+	},
+	.probe = sc18is602_probe,
+	.remove = sc18is602_remove,
+	.id_table = sc18is602_id,
+};
+
+module_i2c_driver(sc18is602_driver);
+
+MODULE_DESCRIPTION("SC18IC602/603 SPI Master Driver");
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_LICENSE("GPL");
diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 934138c7b3d..796c077ef43 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -283,7 +283,7 @@ static int __devinit hspi_probe(struct platform_device *pdev)
 	ret = spi_register_master(master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "spi_register_master error.\n");
-		goto error2;
+		goto error1;
 	}
 
 	pm_runtime_enable(&pdev->dev);
@@ -292,8 +292,6 @@ static int __devinit hspi_probe(struct platform_device *pdev)
 
 	return 0;
 
- error2:
-	devm_iounmap(hspi->dev, hspi->addr);
  error1:
 	clk_put(clk);
  error0:
@@ -310,7 +308,6 @@ static int __devexit hspi_remove(struct platform_device *pdev)
 
 	clk_put(hspi->clk);
 	spi_unregister_master(hspi->master);
-	devm_iounmap(hspi->dev, hspi->addr);
 
 	return 0;
 }
diff --git a/drivers/spi/spi-stmp.c b/drivers/spi/spi-stmp.c
index 58e38528532..911e904b3c8 100644
--- a/drivers/spi/spi-stmp.c
+++ b/drivers/spi/spi-stmp.c
@@ -594,9 +594,7 @@ static int __devexit stmp_spi_remove(struct platform_device *dev)
 	struct stmp_spi *ss;
 	struct spi_master *master;
 
-	master = platform_get_drvdata(dev);
-	if (master == NULL)
-		goto out0;
+	master = spi_master_get(platform_get_drvdata(dev));
 	ss = spi_master_get_devdata(master);
 
 	spi_unregister_master(master);
@@ -609,8 +607,6 @@ static int __devexit stmp_spi_remove(struct platform_device *dev)
 	destroy_workqueue(ss->workqueue);
 	iounmap(ss->regs);
 	spi_master_put(master);
-	platform_set_drvdata(dev, NULL);
-out0:
 	return 0;
 }
 
diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c
deleted file mode 100644
index ef52c1c6f5c..00000000000
--- a/drivers/spi/spi-tegra.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * Driver for Nvidia TEGRA spi controller.
- *
- * Copyright (C) 2010 Google, Inc.
- *
- * Author:
- *     Erik Gilling <konkers@android.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmapool.h>
-#include <linux/clk.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-
-#include <linux/spi/spi.h>
-#include <linux/dmaengine.h>
-
-#include <mach/dma.h>
-
-#define SLINK_COMMAND		0x000
-#define   SLINK_BIT_LENGTH(x)		(((x) & 0x1f) << 0)
-#define   SLINK_WORD_SIZE(x)		(((x) & 0x1f) << 5)
-#define   SLINK_BOTH_EN			(1 << 10)
-#define   SLINK_CS_SW			(1 << 11)
-#define   SLINK_CS_VALUE		(1 << 12)
-#define   SLINK_CS_POLARITY		(1 << 13)
-#define   SLINK_IDLE_SDA_DRIVE_LOW	(0 << 16)
-#define   SLINK_IDLE_SDA_DRIVE_HIGH	(1 << 16)
-#define   SLINK_IDLE_SDA_PULL_LOW	(2 << 16)
-#define   SLINK_IDLE_SDA_PULL_HIGH	(3 << 16)
-#define   SLINK_IDLE_SDA_MASK		(3 << 16)
-#define   SLINK_CS_POLARITY1		(1 << 20)
-#define   SLINK_CK_SDA			(1 << 21)
-#define   SLINK_CS_POLARITY2		(1 << 22)
-#define   SLINK_CS_POLARITY3		(1 << 23)
-#define   SLINK_IDLE_SCLK_DRIVE_LOW	(0 << 24)
-#define   SLINK_IDLE_SCLK_DRIVE_HIGH	(1 << 24)
-#define   SLINK_IDLE_SCLK_PULL_LOW	(2 << 24)
-#define   SLINK_IDLE_SCLK_PULL_HIGH	(3 << 24)
-#define   SLINK_IDLE_SCLK_MASK		(3 << 24)
-#define   SLINK_M_S			(1 << 28)
-#define   SLINK_WAIT			(1 << 29)
-#define   SLINK_GO			(1 << 30)
-#define   SLINK_ENB			(1 << 31)
-
-#define SLINK_COMMAND2		0x004
-#define   SLINK_LSBFE			(1 << 0)
-#define   SLINK_SSOE			(1 << 1)
-#define   SLINK_SPIE			(1 << 4)
-#define   SLINK_BIDIROE			(1 << 6)
-#define   SLINK_MODFEN			(1 << 7)
-#define   SLINK_INT_SIZE(x)		(((x) & 0x1f) << 8)
-#define   SLINK_CS_ACTIVE_BETWEEN	(1 << 17)
-#define   SLINK_SS_EN_CS(x)		(((x) & 0x3) << 18)
-#define   SLINK_SS_SETUP(x)		(((x) & 0x3) << 20)
-#define   SLINK_FIFO_REFILLS_0		(0 << 22)
-#define   SLINK_FIFO_REFILLS_1		(1 << 22)
-#define   SLINK_FIFO_REFILLS_2		(2 << 22)
-#define   SLINK_FIFO_REFILLS_3		(3 << 22)
-#define   SLINK_FIFO_REFILLS_MASK	(3 << 22)
-#define   SLINK_WAIT_PACK_INT(x)	(((x) & 0x7) << 26)
-#define   SLINK_SPC0			(1 << 29)
-#define   SLINK_TXEN			(1 << 30)
-#define   SLINK_RXEN			(1 << 31)
-
-#define SLINK_STATUS		0x008
-#define   SLINK_COUNT(val)		(((val) >> 0) & 0x1f)
-#define   SLINK_WORD(val)		(((val) >> 5) & 0x1f)
-#define   SLINK_BLK_CNT(val)		(((val) >> 0) & 0xffff)
-#define   SLINK_MODF			(1 << 16)
-#define   SLINK_RX_UNF			(1 << 18)
-#define   SLINK_TX_OVF			(1 << 19)
-#define   SLINK_TX_FULL			(1 << 20)
-#define   SLINK_TX_EMPTY		(1 << 21)
-#define   SLINK_RX_FULL			(1 << 22)
-#define   SLINK_RX_EMPTY		(1 << 23)
-#define   SLINK_TX_UNF			(1 << 24)
-#define   SLINK_RX_OVF			(1 << 25)
-#define   SLINK_TX_FLUSH		(1 << 26)
-#define   SLINK_RX_FLUSH		(1 << 27)
-#define   SLINK_SCLK			(1 << 28)
-#define   SLINK_ERR			(1 << 29)
-#define   SLINK_RDY			(1 << 30)
-#define   SLINK_BSY			(1 << 31)
-
-#define SLINK_MAS_DATA		0x010
-#define SLINK_SLAVE_DATA	0x014
-
-#define SLINK_DMA_CTL		0x018
-#define   SLINK_DMA_BLOCK_SIZE(x)	(((x) & 0xffff) << 0)
-#define   SLINK_TX_TRIG_1		(0 << 16)
-#define   SLINK_TX_TRIG_4		(1 << 16)
-#define   SLINK_TX_TRIG_8		(2 << 16)
-#define   SLINK_TX_TRIG_16		(3 << 16)
-#define   SLINK_TX_TRIG_MASK		(3 << 16)
-#define   SLINK_RX_TRIG_1		(0 << 18)
-#define   SLINK_RX_TRIG_4		(1 << 18)
-#define   SLINK_RX_TRIG_8		(2 << 18)
-#define   SLINK_RX_TRIG_16		(3 << 18)
-#define   SLINK_RX_TRIG_MASK		(3 << 18)
-#define   SLINK_PACKED			(1 << 20)
-#define   SLINK_PACK_SIZE_4		(0 << 21)
-#define   SLINK_PACK_SIZE_8		(1 << 21)
-#define   SLINK_PACK_SIZE_16		(2 << 21)
-#define   SLINK_PACK_SIZE_32		(3 << 21)
-#define   SLINK_PACK_SIZE_MASK		(3 << 21)
-#define   SLINK_IE_TXC			(1 << 26)
-#define   SLINK_IE_RXC			(1 << 27)
-#define   SLINK_DMA_EN			(1 << 31)
-
-#define SLINK_STATUS2		0x01c
-#define   SLINK_TX_FIFO_EMPTY_COUNT(val)	(((val) & 0x3f) >> 0)
-#define   SLINK_RX_FIFO_FULL_COUNT(val)		(((val) & 0x3f) >> 16)
-
-#define SLINK_TX_FIFO		0x100
-#define SLINK_RX_FIFO		0x180
-
-static const unsigned long spi_tegra_req_sels[] = {
-	TEGRA_DMA_REQ_SEL_SL2B1,
-	TEGRA_DMA_REQ_SEL_SL2B2,
-	TEGRA_DMA_REQ_SEL_SL2B3,
-	TEGRA_DMA_REQ_SEL_SL2B4,
-};
-
-#define BB_LEN			32
-
-struct spi_tegra_data {
-	struct spi_master	*master;
-	struct platform_device	*pdev;
-	spinlock_t		lock;
-
-	struct clk		*clk;
-	void __iomem		*base;
-	unsigned long		phys;
-
-	u32			cur_speed;
-
-	struct list_head	queue;
-	struct spi_transfer	*cur;
-	unsigned		cur_pos;
-	unsigned		cur_len;
-	unsigned		cur_bytes_per_word;
-
-	/* The tegra spi controller has a bug which causes the first word
-	 * in PIO transactions to be garbage.  Since packed DMA transactions
-	 * require transfers to be 4 byte aligned we need a bounce buffer
-	 * for the generic case.
-	 */
-	int			dma_req_len;
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-	struct tegra_dma_req	rx_dma_req;
-	struct tegra_dma_channel *rx_dma;
-#else
-	struct dma_chan		*rx_dma;
-	struct dma_slave_config	sconfig;
-	struct dma_async_tx_descriptor	*rx_dma_desc;
-	dma_cookie_t		rx_cookie;
-#endif
-	u32			*rx_bb;
-	dma_addr_t		rx_bb_phys;
-};
-
-#if !defined(CONFIG_TEGRA_SYSTEM_DMA)
-static void tegra_spi_rx_dma_complete(void *args);
-#endif
-
-static inline unsigned long spi_tegra_readl(struct spi_tegra_data *tspi,
-					    unsigned long reg)
-{
-	return readl(tspi->base + reg);
-}
-
-static inline void spi_tegra_writel(struct spi_tegra_data *tspi,
-				    unsigned long val,
-				    unsigned long reg)
-{
-	writel(val, tspi->base + reg);
-}
-
-static void spi_tegra_go(struct spi_tegra_data *tspi)
-{
-	unsigned long val;
-
-	wmb();
-
-	val = spi_tegra_readl(tspi, SLINK_DMA_CTL);
-	val &= ~SLINK_DMA_BLOCK_SIZE(~0) & ~SLINK_DMA_EN;
-	val |= SLINK_DMA_BLOCK_SIZE(tspi->dma_req_len / 4 - 1);
-	spi_tegra_writel(tspi, val, SLINK_DMA_CTL);
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-	tspi->rx_dma_req.size = tspi->dma_req_len;
-	tegra_dma_enqueue_req(tspi->rx_dma, &tspi->rx_dma_req);
-#else
-	tspi->rx_dma_desc = dmaengine_prep_slave_single(tspi->rx_dma,
-				tspi->rx_bb_phys, tspi->dma_req_len,
-				DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT);
-	if (!tspi->rx_dma_desc) {
-		dev_err(&tspi->pdev->dev, "dmaengine slave prep failed\n");
-		return;
-	}
-	tspi->rx_dma_desc->callback = tegra_spi_rx_dma_complete;
-	tspi->rx_dma_desc->callback_param = tspi;
-	tspi->rx_cookie = dmaengine_submit(tspi->rx_dma_desc);
-	dma_async_issue_pending(tspi->rx_dma);
-#endif
-
-	val |= SLINK_DMA_EN;
-	spi_tegra_writel(tspi, val, SLINK_DMA_CTL);
-}
-
-static unsigned spi_tegra_fill_tx_fifo(struct spi_tegra_data *tspi,
-				  struct spi_transfer *t)
-{
-	unsigned len = min(t->len - tspi->cur_pos, BB_LEN *
-			   tspi->cur_bytes_per_word);
-	u8 *tx_buf = (u8 *)t->tx_buf + tspi->cur_pos;
-	int i, j;
-	unsigned long val;
-
-	val = spi_tegra_readl(tspi, SLINK_COMMAND);
-	val &= ~SLINK_WORD_SIZE(~0);
-	val |= SLINK_WORD_SIZE(len / tspi->cur_bytes_per_word - 1);
-	spi_tegra_writel(tspi, val, SLINK_COMMAND);
-
-	for (i = 0; i < len; i += tspi->cur_bytes_per_word) {
-		val = 0;
-		for (j = 0; j < tspi->cur_bytes_per_word; j++)
-			val |= tx_buf[i + j] << j * 8;
-
-		spi_tegra_writel(tspi, val, SLINK_TX_FIFO);
-	}
-
-	tspi->dma_req_len = len / tspi->cur_bytes_per_word * 4;
-
-	return len;
-}
-
-static unsigned spi_tegra_drain_rx_fifo(struct spi_tegra_data *tspi,
-				  struct spi_transfer *t)
-{
-	unsigned len = tspi->cur_len;
-	u8 *rx_buf = (u8 *)t->rx_buf + tspi->cur_pos;
-	int i, j;
-	unsigned long val;
-
-	for (i = 0; i < len; i += tspi->cur_bytes_per_word) {
-		val = tspi->rx_bb[i / tspi->cur_bytes_per_word];
-		for (j = 0; j < tspi->cur_bytes_per_word; j++)
-			rx_buf[i + j] = (val >> (j * 8)) & 0xff;
-	}
-
-	return len;
-}
-
-static void spi_tegra_start_transfer(struct spi_device *spi,
-				    struct spi_transfer *t)
-{
-	struct spi_tegra_data *tspi = spi_master_get_devdata(spi->master);
-	u32 speed;
-	u8 bits_per_word;
-	unsigned long val;
-
-	speed = t->speed_hz ? t->speed_hz : spi->max_speed_hz;
-	bits_per_word = t->bits_per_word ? t->bits_per_word  :
-		spi->bits_per_word;
-
-	tspi->cur_bytes_per_word = (bits_per_word - 1) / 8 + 1;
-
-	if (speed != tspi->cur_speed)
-		clk_set_rate(tspi->clk, speed);
-
-	if (tspi->cur_speed == 0)
-		clk_prepare_enable(tspi->clk);
-
-	tspi->cur_speed = speed;
-
-	val = spi_tegra_readl(tspi, SLINK_COMMAND2);
-	val &= ~SLINK_SS_EN_CS(~0) | SLINK_RXEN | SLINK_TXEN;
-	if (t->rx_buf)
-		val |= SLINK_RXEN;
-	if (t->tx_buf)
-		val |= SLINK_TXEN;
-	val |= SLINK_SS_EN_CS(spi->chip_select);
-	val |= SLINK_SPIE;
-	spi_tegra_writel(tspi, val, SLINK_COMMAND2);
-
-	val = spi_tegra_readl(tspi, SLINK_COMMAND);
-	val &= ~SLINK_BIT_LENGTH(~0);
-	val |= SLINK_BIT_LENGTH(bits_per_word - 1);
-
-	/* FIXME: should probably control CS manually so that we can be sure
-	 * it does not go low between transfer and to support delay_usecs
-	 * correctly.
-	 */
-	val &= ~SLINK_IDLE_SCLK_MASK & ~SLINK_CK_SDA & ~SLINK_CS_SW;
-
-	if (spi->mode & SPI_CPHA)
-		val |= SLINK_CK_SDA;
-
-	if (spi->mode & SPI_CPOL)
-		val |= SLINK_IDLE_SCLK_DRIVE_HIGH;
-	else
-		val |= SLINK_IDLE_SCLK_DRIVE_LOW;
-
-	val |= SLINK_M_S;
-
-	spi_tegra_writel(tspi, val, SLINK_COMMAND);
-
-	spi_tegra_writel(tspi, SLINK_RX_FLUSH | SLINK_TX_FLUSH, SLINK_STATUS);
-
-	tspi->cur = t;
-	tspi->cur_pos = 0;
-	tspi->cur_len = spi_tegra_fill_tx_fifo(tspi, t);
-
-	spi_tegra_go(tspi);
-}
-
-static void spi_tegra_start_message(struct spi_device *spi,
-				    struct spi_message *m)
-{
-	struct spi_transfer *t;
-
-	m->actual_length = 0;
-	m->status = 0;
-
-	t = list_first_entry(&m->transfers, struct spi_transfer, transfer_list);
-	spi_tegra_start_transfer(spi, t);
-}
-
-static void handle_spi_rx_dma_complete(struct spi_tegra_data *tspi)
-{
-	unsigned long flags;
-	struct spi_message *m;
-	struct spi_device *spi;
-	int timeout = 0;
-	unsigned long val;
-
-	/* the SPI controller may come back with both the BSY and RDY bits
-	 * set.  In this case we need to wait for the BSY bit to clear so
-	 * that we are sure the DMA is finished.  1000 reads was empirically
-	 * determined to be long enough.
-	 */
-	while (timeout++ < 1000) {
-		if (!(spi_tegra_readl(tspi, SLINK_STATUS) & SLINK_BSY))
-			break;
-	}
-
-	spin_lock_irqsave(&tspi->lock, flags);
-
-	val = spi_tegra_readl(tspi, SLINK_STATUS);
-	val |= SLINK_RDY;
-	spi_tegra_writel(tspi, val, SLINK_STATUS);
-
-	m = list_first_entry(&tspi->queue, struct spi_message, queue);
-
-	if (timeout >= 1000)
-		m->status = -EIO;
-
-	spi = m->state;
-
-	tspi->cur_pos += spi_tegra_drain_rx_fifo(tspi, tspi->cur);
-	m->actual_length += tspi->cur_pos;
-
-	if (tspi->cur_pos < tspi->cur->len) {
-		tspi->cur_len = spi_tegra_fill_tx_fifo(tspi, tspi->cur);
-		spi_tegra_go(tspi);
-	} else if (!list_is_last(&tspi->cur->transfer_list,
-				 &m->transfers)) {
-		tspi->cur =  list_first_entry(&tspi->cur->transfer_list,
-					      struct spi_transfer,
-					      transfer_list);
-		spi_tegra_start_transfer(spi, tspi->cur);
-	} else {
-		list_del(&m->queue);
-
-		m->complete(m->context);
-
-		if (!list_empty(&tspi->queue)) {
-			m = list_first_entry(&tspi->queue, struct spi_message,
-					     queue);
-			spi = m->state;
-			spi_tegra_start_message(spi, m);
-		} else {
-			clk_disable_unprepare(tspi->clk);
-			tspi->cur_speed = 0;
-		}
-	}
-
-	spin_unlock_irqrestore(&tspi->lock, flags);
-}
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-static void tegra_spi_rx_dma_complete(struct tegra_dma_req *req)
-{
-	struct spi_tegra_data *tspi = req->dev;
-	handle_spi_rx_dma_complete(tspi);
-}
-#else
-static void tegra_spi_rx_dma_complete(void *args)
-{
-	struct spi_tegra_data *tspi = args;
-	handle_spi_rx_dma_complete(tspi);
-}
-#endif
-
-static int spi_tegra_setup(struct spi_device *spi)
-{
-	struct spi_tegra_data *tspi = spi_master_get_devdata(spi->master);
-	unsigned long cs_bit;
-	unsigned long val;
-	unsigned long flags;
-
-	dev_dbg(&spi->dev, "setup %d bpw, %scpol, %scpha, %dHz\n",
-		spi->bits_per_word,
-		spi->mode & SPI_CPOL ? "" : "~",
-		spi->mode & SPI_CPHA ? "" : "~",
-		spi->max_speed_hz);
-
-
-	switch (spi->chip_select) {
-	case 0:
-		cs_bit = SLINK_CS_POLARITY;
-		break;
-
-	case 1:
-		cs_bit = SLINK_CS_POLARITY1;
-		break;
-
-	case 2:
-		cs_bit = SLINK_CS_POLARITY2;
-		break;
-
-	case 4:
-		cs_bit = SLINK_CS_POLARITY3;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&tspi->lock, flags);
-
-	val = spi_tegra_readl(tspi, SLINK_COMMAND);
-	if (spi->mode & SPI_CS_HIGH)
-		val |= cs_bit;
-	else
-		val &= ~cs_bit;
-	spi_tegra_writel(tspi, val, SLINK_COMMAND);
-
-	spin_unlock_irqrestore(&tspi->lock, flags);
-
-	return 0;
-}
-
-static int spi_tegra_transfer(struct spi_device *spi, struct spi_message *m)
-{
-	struct spi_tegra_data *tspi = spi_master_get_devdata(spi->master);
-	struct spi_transfer *t;
-	unsigned long flags;
-	int was_empty;
-
-	if (list_empty(&m->transfers) || !m->complete)
-		return -EINVAL;
-
-	list_for_each_entry(t, &m->transfers, transfer_list) {
-		if (t->bits_per_word < 0 || t->bits_per_word > 32)
-			return -EINVAL;
-
-		if (t->len == 0)
-			return -EINVAL;
-
-		if (!t->rx_buf && !t->tx_buf)
-			return -EINVAL;
-	}
-
-	m->state = spi;
-
-	spin_lock_irqsave(&tspi->lock, flags);
-	was_empty = list_empty(&tspi->queue);
-	list_add_tail(&m->queue, &tspi->queue);
-
-	if (was_empty)
-		spi_tegra_start_message(spi, m);
-
-	spin_unlock_irqrestore(&tspi->lock, flags);
-
-	return 0;
-}
-
-static int __devinit spi_tegra_probe(struct platform_device *pdev)
-{
-	struct spi_master	*master;
-	struct spi_tegra_data	*tspi;
-	struct resource		*r;
-	int ret;
-#if !defined(CONFIG_TEGRA_SYSTEM_DMA)
-	dma_cap_mask_t mask;
-#endif
-
-	master = spi_alloc_master(&pdev->dev, sizeof *tspi);
-	if (master == NULL) {
-		dev_err(&pdev->dev, "master allocation failed\n");
-		return -ENOMEM;
-	}
-
-	/* the spi->mode bits understood by this driver: */
-	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
-
-	master->bus_num = pdev->id;
-
-	master->setup = spi_tegra_setup;
-	master->transfer = spi_tegra_transfer;
-	master->num_chipselect = 4;
-
-	dev_set_drvdata(&pdev->dev, master);
-	tspi = spi_master_get_devdata(master);
-	tspi->master = master;
-	tspi->pdev = pdev;
-	spin_lock_init(&tspi->lock);
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (r == NULL) {
-		ret = -ENODEV;
-		goto err0;
-	}
-
-	if (!request_mem_region(r->start, resource_size(r),
-				dev_name(&pdev->dev))) {
-		ret = -EBUSY;
-		goto err0;
-	}
-
-	tspi->phys = r->start;
-	tspi->base = ioremap(r->start, resource_size(r));
-	if (!tspi->base) {
-		dev_err(&pdev->dev, "can't ioremap iomem\n");
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	tspi->clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(tspi->clk)) {
-		dev_err(&pdev->dev, "can not get clock\n");
-		ret = PTR_ERR(tspi->clk);
-		goto err2;
-	}
-
-	INIT_LIST_HEAD(&tspi->queue);
-
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-	tspi->rx_dma = tegra_dma_allocate_channel(TEGRA_DMA_MODE_ONESHOT);
-	if (!tspi->rx_dma) {
-		dev_err(&pdev->dev, "can not allocate rx dma channel\n");
-		ret = -ENODEV;
-		goto err3;
-	}
-#else
-	dma_cap_zero(mask);
-	dma_cap_set(DMA_SLAVE, mask);
-	tspi->rx_dma = dma_request_channel(mask, NULL, NULL);
-	if (!tspi->rx_dma) {
-		dev_err(&pdev->dev, "can not allocate rx dma channel\n");
-		ret = -ENODEV;
-		goto err3;
-	}
-
-#endif
-
-	tspi->rx_bb = dma_alloc_coherent(&pdev->dev, sizeof(u32) * BB_LEN,
-					 &tspi->rx_bb_phys, GFP_KERNEL);
-	if (!tspi->rx_bb) {
-		dev_err(&pdev->dev, "can not allocate rx bounce buffer\n");
-		ret = -ENOMEM;
-		goto err4;
-	}
-
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-	tspi->rx_dma_req.complete = tegra_spi_rx_dma_complete;
-	tspi->rx_dma_req.to_memory = 1;
-	tspi->rx_dma_req.dest_addr = tspi->rx_bb_phys;
-	tspi->rx_dma_req.dest_bus_width = 32;
-	tspi->rx_dma_req.source_addr = tspi->phys + SLINK_RX_FIFO;
-	tspi->rx_dma_req.source_bus_width = 32;
-	tspi->rx_dma_req.source_wrap = 4;
-	tspi->rx_dma_req.req_sel = spi_tegra_req_sels[pdev->id];
-	tspi->rx_dma_req.dev = tspi;
-#else
-	/* Dmaengine Dma slave config */
-	tspi->sconfig.src_addr = tspi->phys + SLINK_RX_FIFO;
-	tspi->sconfig.dst_addr = tspi->phys + SLINK_RX_FIFO;
-	tspi->sconfig.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-	tspi->sconfig.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-	tspi->sconfig.slave_id = spi_tegra_req_sels[pdev->id];
-	tspi->sconfig.src_maxburst = 1;
-	tspi->sconfig.dst_maxburst = 1;
-	ret = dmaengine_device_control(tspi->rx_dma,
-			DMA_SLAVE_CONFIG, (unsigned long) &tspi->sconfig);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "can not do slave configure for dma %d\n",
-			ret);
-		goto err4;
-	}
-#endif
-
-	master->dev.of_node = pdev->dev.of_node;
-	ret = spi_register_master(master);
-
-	if (ret < 0)
-		goto err5;
-
-	return ret;
-
-err5:
-	dma_free_coherent(&pdev->dev, sizeof(u32) * BB_LEN,
-			  tspi->rx_bb, tspi->rx_bb_phys);
-err4:
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-	tegra_dma_free_channel(tspi->rx_dma);
-#else
-	dma_release_channel(tspi->rx_dma);
-#endif
-err3:
-	clk_put(tspi->clk);
-err2:
-	iounmap(tspi->base);
-err1:
-	release_mem_region(r->start, resource_size(r));
-err0:
-	spi_master_put(master);
-	return ret;
-}
-
-static int __devexit spi_tegra_remove(struct platform_device *pdev)
-{
-	struct spi_master	*master;
-	struct spi_tegra_data	*tspi;
-	struct resource		*r;
-
-	master = dev_get_drvdata(&pdev->dev);
-	tspi = spi_master_get_devdata(master);
-
-	spi_unregister_master(master);
-#if defined(CONFIG_TEGRA_SYSTEM_DMA)
-	tegra_dma_free_channel(tspi->rx_dma);
-#else
-	dma_release_channel(tspi->rx_dma);
-#endif
-
-	dma_free_coherent(&pdev->dev, sizeof(u32) * BB_LEN,
-			  tspi->rx_bb, tspi->rx_bb_phys);
-
-	clk_put(tspi->clk);
-	iounmap(tspi->base);
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(r->start, resource_size(r));
-
-	return 0;
-}
-
-MODULE_ALIAS("platform:spi_tegra");
-
-#ifdef CONFIG_OF
-static struct of_device_id spi_tegra_of_match_table[] __devinitdata = {
-	{ .compatible = "nvidia,tegra20-spi", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, spi_tegra_of_match_table);
-#else /* CONFIG_OF */
-#define spi_tegra_of_match_table NULL
-#endif /* CONFIG_OF */
-
-static struct platform_driver spi_tegra_driver = {
-	.driver = {
-		.name =		"spi_tegra",
-		.owner =	THIS_MODULE,
-		.of_match_table = spi_tegra_of_match_table,
-	},
-	.probe =	spi_tegra_probe,
-	.remove =	__devexit_p(spi_tegra_remove),
-};
-module_platform_driver(spi_tegra_driver);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/spi/spi-tle62x0.c b/drivers/spi/spi-tle62x0.c
index 0ce5c12aab5..24421024dea 100644
--- a/drivers/spi/spi-tle62x0.c
+++ b/drivers/spi/spi-tle62x0.c
@@ -316,18 +316,7 @@ static struct spi_driver tle62x0_driver = {
 	.remove		= __devexit_p(tle62x0_remove),
 };
 
-static __init int tle62x0_init(void)
-{
-	return spi_register_driver(&tle62x0_driver);
-}
-
-static __exit void tle62x0_exit(void)
-{
-	spi_unregister_driver(&tle62x0_driver);
-}
-
-module_init(tle62x0_init);
-module_exit(tle62x0_exit);
+module_spi_driver(tle62x0_driver);
 
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_DESCRIPTION("TLE62x0 SPI driver");
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index cd56dcf4632..135f7406f4b 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -505,7 +505,7 @@ static int pch_spi_transfer(struct spi_device *pspi, struct spi_message *pmsg)
 	}
 
 	if (unlikely(pspi->max_speed_hz == 0)) {
-		dev_err(&pspi->dev, "%s pch_spi_tranfer maxspeed=%d\n",
+		dev_err(&pspi->dev, "%s pch_spi_transfer maxspeed=%d\n",
 			__func__, pspi->max_speed_hz);
 		retval = -EINVAL;
 		goto err_out;
@@ -1536,8 +1536,6 @@ static int __devexit pch_spi_pd_remove(struct platform_device *plat_dev)
 
 	pci_iounmap(board_dat->pdev, data->io_remap_addr);
 	spi_unregister_master(data->master);
-	spi_master_put(data->master);
-	platform_set_drvdata(plat_dev, NULL);
 
 	return 0;
 }
diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c
index 7e2ddc042f5..c6250867a95 100644
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -190,16 +190,30 @@ static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
 {
 	struct ssb_bus *bus = mcore->dev->bus;
 
-	mcore->flash_buswidth = 2;
-	if (bus->chipco.dev) {
-		mcore->flash_window = 0x1c000000;
-		mcore->flash_window_size = 0x02000000;
+	/* When there is no chipcommon on the bus there is 4MB flash */
+	if (!bus->chipco.dev) {
+		mcore->flash_buswidth = 2;
+		mcore->flash_window = SSB_FLASH1;
+		mcore->flash_window_size = SSB_FLASH1_SZ;
+		return;
+	}
+
+	/* There is ChipCommon, so use it to read info about flash */
+	switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
+	case SSB_CHIPCO_FLASHT_STSER:
+	case SSB_CHIPCO_FLASHT_ATSER:
+		pr_err("Serial flash not supported\n");
+		break;
+	case SSB_CHIPCO_FLASHT_PARA:
+		pr_debug("Found parallel flash\n");
+		mcore->flash_window = SSB_FLASH2;
+		mcore->flash_window_size = SSB_FLASH2_SZ;
 		if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
 		               & SSB_CHIPCO_CFG_DS16) == 0)
 			mcore->flash_buswidth = 1;
-	} else {
-		mcore->flash_window = 0x1fc00000;
-		mcore->flash_window_size = 0x00400000;
+		else
+			mcore->flash_buswidth = 2;
+		break;
 	}
 }
 
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index e3402d5644d..d805eef1191 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -122,8 +122,6 @@ source "drivers/staging/android/Kconfig"
 
 source "drivers/staging/telephony/Kconfig"
 
-source "drivers/staging/ramster/Kconfig"
-
 source "drivers/staging/ozwpan/Kconfig"
 
 source "drivers/staging/ccg/Kconfig"
@@ -136,4 +134,14 @@ source "drivers/staging/csr/Kconfig"
 
 source "drivers/staging/omap-thermal/Kconfig"
 
+source "drivers/staging/ramster/Kconfig"
+
+source "drivers/staging/silicom/Kconfig"
+
+source "drivers/staging/ced1401/Kconfig"
+
+source "drivers/staging/imx-drm/Kconfig"
+
+source "drivers/staging/dgrp/Kconfig"
+
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 3be59d02cae..76e2ebd596f 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -54,9 +54,13 @@ obj-$(CONFIG_MFD_NVEC)		+= nvec/
 obj-$(CONFIG_DRM_OMAP)		+= omapdrm/
 obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_PHONE)		+= telephony/
-obj-$(CONFIG_RAMSTER)		+= ramster/
 obj-$(CONFIG_USB_WPAN_HCD)	+= ozwpan/
 obj-$(CONFIG_USB_G_CCG)		+= ccg/
 obj-$(CONFIG_WIMAX_GDM72XX)	+= gdm72xx/
 obj-$(CONFIG_CSR_WIFI)		+= csr/
 obj-$(CONFIG_OMAP_BANDGAP)	+= omap-thermal/
+obj-$(CONFIG_ZCACHE2)		+= ramster/
+obj-$(CONFIG_NET_VENDOR_SILICOM)	+= silicom/
+obj-$(CONFIG_CED1401)		+= ced1401/
+obj-$(CONFIG_DRM_IMX)		+= imx-drm/
+obj-$(CONFIG_DGRP)		+= dgrp/
diff --git a/drivers/staging/android/alarm-dev.c b/drivers/staging/android/alarm-dev.c
index 5b706400518..a9b293ff3cc 100644
--- a/drivers/staging/android/alarm-dev.c
+++ b/drivers/staging/android/alarm-dev.c
@@ -67,10 +67,8 @@ static struct devalarm alarms[ANDROID_ALARM_TYPE_COUNT];
 
 static int is_wakeup(enum android_alarm_type type)
 {
-	if (type == ANDROID_ALARM_RTC_WAKEUP ||
-			type == ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP)
-		return 1;
-	return 0;
+	return (type == ANDROID_ALARM_RTC_WAKEUP ||
+		type == ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP);
 }
 
 
@@ -85,12 +83,9 @@ static void devalarm_start(struct devalarm *alrm, ktime_t exp)
 
 static int devalarm_try_to_cancel(struct devalarm *alrm)
 {
-	int ret;
 	if (is_wakeup(alrm->type))
-		ret = alarm_try_to_cancel(&alrm->u.alrm);
-	else
-		ret = hrtimer_try_to_cancel(&alrm->u.hrt);
-	return ret;
+		return alarm_try_to_cancel(&alrm->u.alrm);
+	return hrtimer_try_to_cancel(&alrm->u.hrt);
 }
 
 static void devalarm_cancel(struct devalarm *alrm)
@@ -223,10 +218,12 @@ from_old_alarm_set:
 		case ANDROID_ALARM_ELAPSED_REALTIME:
 			get_monotonic_boottime(&tmp_time);
 			break;
-		case ANDROID_ALARM_TYPE_COUNT:
 		case ANDROID_ALARM_SYSTEMTIME:
 			ktime_get_ts(&tmp_time);
 			break;
+		default:
+			rv = -EINVAL;
+			goto err1;
 		}
 		if (copy_to_user((void __user *)arg, &tmp_time,
 		    sizeof(tmp_time))) {
diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h
index d0cafd63719..f2ffd963f1c 100644
--- a/drivers/staging/android/android_alarm.h
+++ b/drivers/staging/android/android_alarm.h
@@ -51,10 +51,12 @@ enum android_alarm_return_flags {
 #define ANDROID_ALARM_WAIT                  _IO('a', 1)
 
 #define ALARM_IOW(c, type, size)            _IOW('a', (c) | ((type) << 4), size)
+#define ALARM_IOR(c, type, size)            _IOR('a', (c) | ((type) << 4), size)
+
 /* Set alarm */
 #define ANDROID_ALARM_SET(type)             ALARM_IOW(2, type, struct timespec)
 #define ANDROID_ALARM_SET_AND_WAIT(type)    ALARM_IOW(3, type, struct timespec)
-#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOW(4, type, struct timespec)
+#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOR(4, type, struct timespec)
 #define ANDROID_ALARM_SET_RTC               _IOW('a', 5, struct timespec)
 #define ANDROID_ALARM_BASE_CMD(cmd)         (cmd & ~(_IOC(0, 0, 0xf0, 0)))
 #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd)    (_IOC_NR(cmd) >> 4)
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 69cf2db1d69..94a740d2883 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -1,20 +1,20 @@
 /* mm/ashmem.c
-**
-** Anonymous Shared Memory Subsystem, ashmem
-**
-** Copyright (C) 2008 Google, Inc.
-**
-** Robert Love <rlove@google.com>
-**
-** This software is licensed under the terms of the GNU General Public
-** License version 2, as published by the Free Software Foundation, and
-** may be copied, distributed, and modified under those terms.
-**
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-** GNU General Public License for more details.
-*/
+ *
+ * Anonymous Shared Memory Subsystem, ashmem
+ *
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * Robert Love <rlove@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 
 #define pr_fmt(fmt) "ashmem: " fmt
 
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 574e99210c3..7b0ba92e7e4 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -47,7 +47,7 @@ static HLIST_HEAD(binder_dead_nodes);
 static struct dentry *binder_debugfs_dir_entry_root;
 static struct dentry *binder_debugfs_dir_entry_proc;
 static struct binder_node *binder_context_mgr_node;
-static uid_t binder_context_mgr_uid = -1;
+static kuid_t binder_context_mgr_uid = INVALID_UID;
 static int binder_last_id;
 static struct workqueue_struct *binder_deferred_workqueue;
 
@@ -356,77 +356,28 @@ struct binder_transaction {
 	unsigned int	flags;
 	long	priority;
 	long	saved_priority;
-	uid_t	sender_euid;
+	kuid_t	sender_euid;
 };
 
 static void
 binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer);
 
-/*
- * copied from get_unused_fd_flags
- */
-int task_get_unused_fd_flags(struct binder_proc *proc, int flags)
+static int task_get_unused_fd_flags(struct binder_proc *proc, int flags)
 {
 	struct files_struct *files = proc->files;
-	int fd, error;
-	struct fdtable *fdt;
 	unsigned long rlim_cur;
 	unsigned long irqs;
 
 	if (files == NULL)
 		return -ESRCH;
 
-	error = -EMFILE;
-	spin_lock(&files->file_lock);
-
-repeat:
-	fdt = files_fdtable(files);
-	fd = find_next_zero_bit(fdt->open_fds, fdt->max_fds, files->next_fd);
-
-	/*
-	 * N.B. For clone tasks sharing a files structure, this test
-	 * will limit the total number of files that can be opened.
-	 */
-	rlim_cur = 0;
-	if (lock_task_sighand(proc->tsk, &irqs)) {
-		rlim_cur = proc->tsk->signal->rlim[RLIMIT_NOFILE].rlim_cur;
-		unlock_task_sighand(proc->tsk, &irqs);
-	}
-	if (fd >= rlim_cur)
-		goto out;
-
-	/* Do we need to expand the fd array or fd set?  */
-	error = expand_files(files, fd);
-	if (error < 0)
-		goto out;
-
-	if (error) {
-		/*
-		 * If we needed to expand the fs array we
-		 * might have blocked - try again.
-		 */
-		error = -EMFILE;
-		goto repeat;
-	}
-
-	__set_open_fd(fd, fdt);
-	if (flags & O_CLOEXEC)
-		__set_close_on_exec(fd, fdt);
-	else
-		__clear_close_on_exec(fd, fdt);
-	files->next_fd = fd + 1;
-#if 1
-	/* Sanity check */
-	if (fdt->fd[fd] != NULL) {
-		pr_warn("get_unused_fd: slot %d not NULL!\n", fd);
-		fdt->fd[fd] = NULL;
-	}
-#endif
-	error = fd;
+	if (!lock_task_sighand(proc->tsk, &irqs))
+		return -EMFILE;
+
+	rlim_cur = task_rlimit(proc->tsk, RLIMIT_NOFILE);
+	unlock_task_sighand(proc->tsk, &irqs);
 
-out:
-	spin_unlock(&files->file_lock);
-	return error;
+	return __alloc_fd(files, 0, rlim_cur, flags);
 }
 
 /*
@@ -435,28 +386,8 @@ out:
 static void task_fd_install(
 	struct binder_proc *proc, unsigned int fd, struct file *file)
 {
-	struct files_struct *files = proc->files;
-	struct fdtable *fdt;
-
-	if (files == NULL)
-		return;
-
-	spin_lock(&files->file_lock);
-	fdt = files_fdtable(files);
-	BUG_ON(fdt->fd[fd] != NULL);
-	rcu_assign_pointer(fdt->fd[fd], file);
-	spin_unlock(&files->file_lock);
-}
-
-/*
- * copied from __put_unused_fd in open.c
- */
-static void __put_unused_fd(struct files_struct *files, unsigned int fd)
-{
-	struct fdtable *fdt = files_fdtable(files);
-	__clear_open_fd(fd, fdt);
-	if (fd < files->next_fd)
-		files->next_fd = fd;
+	if (proc->files)
+		__fd_install(proc->files, fd, file);
 }
 
 /*
@@ -464,27 +395,12 @@ static void __put_unused_fd(struct files_struct *files, unsigned int fd)
  */
 static long task_close_fd(struct binder_proc *proc, unsigned int fd)
 {
-	struct file *filp;
-	struct files_struct *files = proc->files;
-	struct fdtable *fdt;
 	int retval;
 
-	if (files == NULL)
+	if (proc->files == NULL)
 		return -ESRCH;
 
-	spin_lock(&files->file_lock);
-	fdt = files_fdtable(files);
-	if (fd >= fdt->max_fds)
-		goto out_unlock;
-	filp = fdt->fd[fd];
-	if (!filp)
-		goto out_unlock;
-	rcu_assign_pointer(fdt->fd[fd], NULL);
-	__clear_close_on_exec(fd, fdt);
-	__put_unused_fd(files, fd);
-	spin_unlock(&files->file_lock);
-	retval = filp_close(filp, files);
-
+	retval = __close_fd(proc->files, fd);
 	/* can't restart close syscall because file table entry was cleared */
 	if (unlikely(retval == -ERESTARTSYS ||
 		     retval == -ERESTARTNOINTR ||
@@ -493,10 +409,6 @@ static long task_close_fd(struct binder_proc *proc, unsigned int fd)
 		retval = -EINTR;
 
 	return retval;
-
-out_unlock:
-	spin_unlock(&files->file_lock);
-	return -EBADF;
 }
 
 static void binder_set_nice(long nice)
@@ -2427,7 +2339,7 @@ retry:
 		}
 		tr.code = t->code;
 		tr.flags = t->flags;
-		tr.sender_euid = t->sender_euid;
+		tr.sender_euid = from_kuid(current_user_ns(), t->sender_euid);
 
 		if (t->from) {
 			struct task_struct *sender = t->from->proc->tsk;
@@ -2705,12 +2617,12 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 			ret = -EBUSY;
 			goto err;
 		}
-		if (binder_context_mgr_uid != -1) {
-			if (binder_context_mgr_uid != current->cred->euid) {
+		if (uid_valid(binder_context_mgr_uid)) {
+			if (!uid_eq(binder_context_mgr_uid, current->cred->euid)) {
 				pr_err("binder: BINDER_SET_"
 				       "CONTEXT_MGR bad uid %d != %d\n",
-				       current->cred->euid,
-				       binder_context_mgr_uid);
+				       from_kuid(&init_user_ns, current->cred->euid),
+				       from_kuid(&init_user_ns, binder_context_mgr_uid));
 				ret = -EPERM;
 				goto err;
 			}
@@ -2793,6 +2705,9 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	const char *failure_string;
 	struct binder_buffer *buffer;
 
+	if (proc->tsk != current)
+		return -EINVAL;
+
 	if ((vma->vm_end - vma->vm_start) > SZ_4M)
 		vma->vm_end = vma->vm_start + SZ_4M;
 
@@ -2857,7 +2772,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	binder_insert_free_buffer(proc, buffer);
 	proc->free_async_space = proc->buffer_size / 2;
 	barrier();
-	proc->files = get_files_struct(proc->tsk);
+	proc->files = get_files_struct(current);
 	proc->vma = vma;
 	proc->vma_vm_mm = vma->vm_mm;
 
diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c
index f7b8237d5be..1d5ed475364 100644
--- a/drivers/staging/android/logger.c
+++ b/drivers/staging/android/logger.c
@@ -32,38 +32,50 @@
 
 #include <asm/ioctls.h>
 
-/*
+/**
  * struct logger_log - represents a specific log, such as 'main' or 'radio'
+ * @buffer:	The actual ring buffer
+ * @misc:	The "misc" device representing the log
+ * @wq:		The wait queue for @readers
+ * @readers:	This log's readers
+ * @mutex:	The mutex that protects the @buffer
+ * @w_off:	The current write head offset
+ * @head:	The head, or location that readers start reading at.
+ * @size:	The size of the log
+ * @logs:	The list of log channels
  *
  * This structure lives from module insertion until module removal, so it does
  * not need additional reference counting. The structure is protected by the
  * mutex 'mutex'.
  */
 struct logger_log {
-	unsigned char		*buffer;/* the ring buffer itself */
-	struct miscdevice	misc;	/* misc device representing the log */
-	wait_queue_head_t	wq;	/* wait queue for readers */
-	struct list_head	readers; /* this log's readers */
-	struct mutex		mutex;	/* mutex protecting buffer */
-	size_t			w_off;	/* current write head offset */
-	size_t			head;	/* new readers start here */
-	size_t			size;	/* size of the log */
-	struct list_head	logs;	/* list of log channels (myself)*/
+	unsigned char		*buffer;
+	struct miscdevice	misc;
+	wait_queue_head_t	wq;
+	struct list_head	readers;
+	struct mutex		mutex;
+	size_t			w_off;
+	size_t			head;
+	size_t			size;
+	struct list_head	logs;
 };
 
 static LIST_HEAD(log_list);
 
 
-/*
+/**
  * struct logger_reader - a logging device open for reading
+ * @log:	The associated log
+ * @list:	The associated entry in @logger_log's list
+ * @r_off:	The current read head offset.
  *
  * This object lives from open to release, so we don't need additional
  * reference counting. The structure is protected by log->mutex.
  */
 struct logger_reader {
-	struct logger_log	*log;	/* associated log */
-	struct list_head	list;	/* entry in logger_log's list */
-	size_t			r_off;	/* current read head offset */
+	struct logger_log	*log;
+	struct list_head	list;
+	size_t			r_off;
 };
 
 /* logger_offset - returns index 'n' into the log via (optimized) modulus */
diff --git a/drivers/staging/android/logger.h b/drivers/staging/android/logger.h
index 2cb06e9d8f9..9b929a8c746 100644
--- a/drivers/staging/android/logger.h
+++ b/drivers/staging/android/logger.h
@@ -20,14 +20,24 @@
 #include <linux/types.h>
 #include <linux/ioctl.h>
 
+/**
+ * struct logger_entry - defines a single entry that is given to a logger
+ * @len:	The length of the payload
+ * @__pad:	Two bytes of padding that appear to be required
+ * @pid:	The generating process' process ID
+ * @tid:	The generating process' thread ID
+ * @sec:	The number of seconds that have elapsed since the Epoch
+ * @nsec:	The number of nanoseconds that have elapsed since @sec
+ * @msg:	The message that is to be logged
+ */
 struct logger_entry {
-	__u16		len;	/* length of the payload */
-	__u16		__pad;	/* no matter what, we get 2 bytes of padding */
-	__s32		pid;	/* generating process's pid */
-	__s32		tid;	/* generating process's tid */
-	__s32		sec;	/* seconds since Epoch */
-	__s32		nsec;	/* nanoseconds */
-	char		msg[0];	/* the entry's payload */
+	__u16		len;
+	__u16		__pad;
+	__s32		pid;
+	__s32		tid;
+	__s32		sec;
+	__s32		nsec;
+	char		msg[0];
 };
 
 #define LOGGER_LOG_RADIO	"log_radio"	/* radio-related messages */
diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c
index 45c522cbe78..e81451425c0 100644
--- a/drivers/staging/android/timed_gpio.c
+++ b/drivers/staging/android/timed_gpio.c
@@ -161,18 +161,7 @@ static struct platform_driver timed_gpio_driver = {
 	},
 };
 
-static int __init timed_gpio_init(void)
-{
-	return platform_driver_register(&timed_gpio_driver);
-}
-
-static void __exit timed_gpio_exit(void)
-{
-	platform_driver_unregister(&timed_gpio_driver);
-}
-
-module_init(timed_gpio_init);
-module_exit(timed_gpio_exit);
+module_platform_driver(timed_gpio_driver);
 
 MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
 MODULE_DESCRIPTION("timed gpio driver");
diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index f63c1d3aeb6..00185478647 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -42,8 +42,6 @@
 #define ASUS_OLED_NAME			"asus-oled"
 #define ASUS_OLED_UNDERSCORE_NAME	"asus_oled"
 
-#define ASUS_OLED_ERROR			"Asus OLED Display Error: "
-
 #define ASUS_OLED_STATIC		's'
 #define ASUS_OLED_ROLL			'r'
 #define ASUS_OLED_FLASH			'f'
@@ -57,8 +55,9 @@
 #define USB_DEVICE_ID_ASUS_LCM2     0x175b
 
 MODULE_AUTHOR("Jakub Schmidtke, sjakub@gmail.com");
-MODULE_DESCRIPTION("Asus OLED Driver v" ASUS_OLED_VERSION);
+MODULE_DESCRIPTION("Asus OLED Driver");
 MODULE_LICENSE("GPL");
+MODULE_VERSION(ASUS_OLED_VERSION);
 
 static struct class *oled_class;
 static int oled_num;
@@ -138,6 +137,7 @@ struct asus_oled_dev {
 	size_t			buf_size;
 	char			*buf;
 	uint8_t			enabled;
+	uint8_t			enabled_post_resume;
 	struct device		*dev;
 };
 
@@ -383,13 +383,13 @@ static int append_values(struct asus_oled_dev *odev, uint8_t val, size_t count)
 
 		default:
 			i = 0;
-			printk(ASUS_OLED_ERROR "Unknown OLED Pack Mode: %d!\n",
+			dev_err(odev->dev, "Unknown OLED Pack Mode: %d!\n",
 			       odev->pack_mode);
 			break;
 		}
 
 		if (i >= odev->buf_size) {
-			printk(ASUS_OLED_ERROR "Buffer overflow! Report a bug:"
+			dev_err(odev->dev, "Buffer overflow! Report a bug:"
 			       "offs: %d >= %d i: %d (x: %d y: %d)\n",
 			       (int) odev->buf_offs, (int) odev->buf_size,
 			       (int) i, (int) x, (int) y);
@@ -435,7 +435,7 @@ static ssize_t odev_set_picture(struct asus_oled_dev *odev,
 		odev->buf = kmalloc(odev->buf_size, GFP_KERNEL);
 		if (odev->buf == NULL) {
 			odev->buf_size = 0;
-			printk(ASUS_OLED_ERROR "Out of memory!\n");
+			dev_err(odev->dev, "Out of memory!\n");
 			return -ENOMEM;
 		}
 
@@ -473,7 +473,7 @@ static ssize_t odev_set_picture(struct asus_oled_dev *odev,
 			odev->pic_mode = buf[1];
 			break;
 		default:
-			printk(ASUS_OLED_ERROR "Wrong picture mode: '%c'.\n",
+			dev_err(odev->dev, "Wrong picture mode: '%c'.\n",
 			       buf[1]);
 			return -EIO;
 			break;
@@ -533,7 +533,7 @@ static ssize_t odev_set_picture(struct asus_oled_dev *odev,
 
 		if (odev->buf == NULL) {
 			odev->buf_size = 0;
-			printk(ASUS_OLED_ERROR "Out of memory!\n");
+			dev_err(odev->dev, "Out of memory!\n");
 			return -ENOMEM;
 		}
 
@@ -593,15 +593,15 @@ static ssize_t odev_set_picture(struct asus_oled_dev *odev,
 	return count;
 
 error_width:
-	printk(ASUS_OLED_ERROR "Wrong picture width specified.\n");
+	dev_err(odev->dev, "Wrong picture width specified.\n");
 	return -EIO;
 
 error_height:
-	printk(ASUS_OLED_ERROR "Wrong picture height specified.\n");
+	dev_err(odev->dev, "Wrong picture height specified.\n");
 	return -EIO;
 
 error_header:
-	printk(ASUS_OLED_ERROR "Wrong picture header.\n");
+	dev_err(odev->dev, "Wrong picture header.\n");
 	return -EIO;
 }
 
@@ -766,11 +766,45 @@ static void asus_oled_disconnect(struct usb_interface *interface)
 	dev_info(&interface->dev, "Disconnected Asus OLED device\n");
 }
 
+#ifdef CONFIG_PM
+static int asus_oled_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct asus_oled_dev *odev;
+
+	odev = usb_get_intfdata(intf);
+	if (!odev)
+		return -ENODEV;
+
+	odev->enabled_post_resume = odev->enabled;
+	enable_oled(odev, 0);
+
+	return 0;
+}
+
+static int asus_oled_resume(struct usb_interface *intf)
+{
+	struct asus_oled_dev *odev;
+
+	odev = usb_get_intfdata(intf);
+	if (!odev)
+		return -ENODEV;
+
+	enable_oled(odev, odev->enabled_post_resume);
+
+	return 0;
+}
+#else
+#define asus_oled_suspend NULL
+#define asus_oled_resume NULL
+#endif
+
 static struct usb_driver oled_driver = {
 	.name =		ASUS_OLED_NAME,
 	.probe =	asus_oled_probe,
 	.disconnect =	asus_oled_disconnect,
 	.id_table =	id_table,
+	.suspend =	asus_oled_suspend,
+	.resume =	asus_oled_resume,
 };
 
 static CLASS_ATTR_STRING(version, S_IRUGO,
diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index cf411d1706b..3d02c2ebfb8 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -820,6 +820,7 @@ cntrlEnd:
 
 		if (copy_from_user(psFwInfo, IoBuffer.InputBuffer, IoBuffer.InputLength)) {
 			up(&Adapter->fw_download_sema);
+			kfree(psFwInfo);
 			return -EFAULT;
 		}
 
@@ -829,6 +830,7 @@ cntrlEnd:
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Something else is wrong %lu\n",
 					psFwInfo->u32FirmwareLength);
 			up(&Adapter->fw_download_sema);
+			kfree(psFwInfo);
 			Status = -EINVAL;
 			return Status;
 		}
diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
index b54ec974477..325b592fd41 100644
--- a/drivers/staging/bcm/CmHost.c
+++ b/drivers/staging/bcm/CmHost.c
@@ -235,7 +235,7 @@ void ClearTargetDSXBuffer(struct bcm_mini_adapter *Adapter, B_UINT16 TID, BOOLEA
  * @ingroup ctrl_pkt_functions
  * copy classifier rule into the specified SF index
  */
-static inline VOID CopyClassifierRuleToSF(struct bcm_mini_adapter *Adapter, stConvergenceSLTypes  *psfCSType, UINT uiSearchRuleIndex, UINT nClassifierIndex)
+static inline VOID CopyClassifierRuleToSF(struct bcm_mini_adapter *Adapter, struct bcm_convergence_types *psfCSType, UINT uiSearchRuleIndex, UINT nClassifierIndex)
 {
 	struct bcm_classifier_rule *pstClassifierEntry = NULL;
 	/* VOID *pvPhsContext = NULL; */
@@ -428,7 +428,7 @@ VOID DeleteAllClassifiersForSF(struct bcm_mini_adapter *Adapter, UINT uiSearchRu
  * @ingroup ctrl_pkt_functions
  */
 static VOID CopyToAdapter(register struct bcm_mini_adapter *Adapter, /* <Pointer to the Adapter structure */
-			register pstServiceFlowParamSI psfLocalSet, /* <Pointer to the ServiceFlowParamSI structure */
+			register struct bcm_connect_mgr_params *psfLocalSet, /* Pointer to the connection manager parameters structure */
 			register UINT uiSearchRuleIndex, /* <Index of Queue, to which this data belongs */
 			register UCHAR ucDsxType,
 			stLocalSFAddIndicationAlt *pstAddIndication) {
@@ -439,7 +439,7 @@ static VOID CopyToAdapter(register struct bcm_mini_adapter *Adapter, /* <Pointer
 	enum E_CLASSIFIER_ACTION eClassifierAction = eInvalidClassifierAction;
 	B_UINT16 u16PacketClassificationRuleIndex = 0;
 	int i;
-	stConvergenceSLTypes *psfCSType = NULL;
+	struct bcm_convergence_types *psfCSType = NULL;
 	S_PHS_RULE sPhsRule;
 	USHORT uVCID = Adapter->PackInfo[uiSearchRuleIndex].usVCID_Value;
 	UINT UGIValue = 0;
@@ -915,7 +915,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	if (!pstAddIndication->sfAuthorizedSet.bValid)
 		pstAddIndication->sfAuthorizedSet.bValid = 1;
 	for (nIndex = 0; nIndex < nCurClassifierCnt; nIndex++) {
-		stConvergenceSLTypes *psfCSType = NULL;
+		struct bcm_convergence_types *psfCSType = NULL;
 		psfCSType =  &pstAddIndication->sfAuthorizedSet.cConvergenceSLTypes[nIndex];
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "psfCSType = %p", psfCSType);
@@ -999,13 +999,10 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 #ifdef VERSION_D5
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8IPv6FlowLableLength: 0x%X ",
 				psfCSType->cCPacketClassificationRule.u8IPv6FlowLableLength);
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8IPv6FlowLable[6]: 0x %02X %02X %02X %02X %02X %02X ",
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[0],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[1],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[2],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[3],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[4],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[5]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL,
+				DBG_LVL_ALL, "u8IPv6FlowLable[6]: 0x%*ph ",
+				6, psfCSType->cCPacketClassificationRule.
+					      u8IPv6FlowLable);
 #endif
 	}
 
@@ -1015,13 +1012,9 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u16CID: 0x%X", pstAddIndication->sfAdmittedSet.u16CID);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ServiceClassNameLength: 0x%X",
 			pstAddIndication->sfAdmittedSet.u8ServiceClassNameLength);
-	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ServiceClassName: 0x %02X %02X %02X %02X %02X %02X",
-			pstAddIndication->sfAdmittedSet.u8ServiceClassName[0],
-			pstAddIndication->sfAdmittedSet.u8ServiceClassName[1],
-			pstAddIndication->sfAdmittedSet.u8ServiceClassName[2],
-			pstAddIndication->sfAdmittedSet.u8ServiceClassName[3],
-			pstAddIndication->sfAdmittedSet.u8ServiceClassName[4],
-			pstAddIndication->sfAdmittedSet.u8ServiceClassName[5]);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,
+			"u8ServiceClassName: 0x%*ph",
+			6, pstAddIndication->sfAdmittedSet.u8ServiceClassName);
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8MBSService: 0x%02X", pstAddIndication->sfAdmittedSet.u8MBSService);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8QosParamSet: 0x%02X", pstAddIndication->sfAdmittedSet.u8QosParamSet);
@@ -1066,7 +1059,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 		nCurClassifierCnt = MAX_CLASSIFIERS_IN_SF;
 
 	for (nIndex = 0; nIndex < nCurClassifierCnt; nIndex++) {
-		stConvergenceSLTypes *psfCSType = NULL;
+		struct bcm_convergence_types *psfCSType = NULL;
 
 		psfCSType =  &pstAddIndication->sfAdmittedSet.cConvergenceSLTypes[nIndex];
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, " CCPacketClassificationRuleSI====>");
@@ -1074,10 +1067,10 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 				psfCSType->cCPacketClassificationRule.u8ClassifierRulePriority);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8IPTypeOfServiceLength: 0x%02X",
 				psfCSType->cCPacketClassificationRule.u8IPTypeOfServiceLength);
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8IPTypeOfService[3]: 0x%02X %02X %02X",
-				psfCSType->cCPacketClassificationRule.u8IPTypeOfService[0],
-				psfCSType->cCPacketClassificationRule.u8IPTypeOfService[1],
-				psfCSType->cCPacketClassificationRule.u8IPTypeOfService[2]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL,
+				DBG_LVL_ALL, "u8IPTypeOfService[3]: 0x%*ph",
+				3, psfCSType->cCPacketClassificationRule.
+					      u8IPTypeOfService);
 		for (uiLoopIndex = 0; uiLoopIndex < 1; uiLoopIndex++)
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8Protocol: 0x%02X ", psfCSType->cCPacketClassificationRule.u8Protocol);
 
@@ -1098,20 +1091,20 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ProtocolSourcePortRangeLength: 0x%02X ",
 				psfCSType->cCPacketClassificationRule.u8ProtocolSourcePortRangeLength);
 
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ProtocolSourcePortRange[4]: 0x %02X %02X %02X %02X ",
-				psfCSType->cCPacketClassificationRule.u8ProtocolSourcePortRange[0],
-				psfCSType->cCPacketClassificationRule.u8ProtocolSourcePortRange[1],
-				psfCSType->cCPacketClassificationRule.u8ProtocolSourcePortRange[2],
-				psfCSType->cCPacketClassificationRule.u8ProtocolSourcePortRange[3]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL,
+				DBG_LVL_ALL, "u8ProtocolSourcePortRange[4]: "
+				"0x%*ph ", 4, psfCSType->
+						cCPacketClassificationRule.
+						u8ProtocolSourcePortRange);
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ProtocolDestPortRangeLength: 0x%02X ",
 				psfCSType->cCPacketClassificationRule.u8ProtocolDestPortRangeLength);
 
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ProtocolDestPortRange[4]: 0x %02X %02X %02X %02X ",
-				psfCSType->cCPacketClassificationRule.u8ProtocolDestPortRange[0],
-				psfCSType->cCPacketClassificationRule.u8ProtocolDestPortRange[1],
-				psfCSType->cCPacketClassificationRule.u8ProtocolDestPortRange[2],
-				psfCSType->cCPacketClassificationRule.u8ProtocolDestPortRange[3]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL,
+				DBG_LVL_ALL, "u8ProtocolDestPortRange[4]: "
+				"0x%*ph ", 4, psfCSType->
+						cCPacketClassificationRule.
+						u8ProtocolDestPortRange);
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8EthernetDestMacAddressLength: 0x%02X ",
 				psfCSType->cCPacketClassificationRule.u8EthernetDestMacAddressLength);
@@ -1130,10 +1123,10 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 						u8EthernetSourceMACAddress);
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8EthertypeLength: 0x%02X ", psfCSType->cCPacketClassificationRule.u8EthertypeLength);
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8Ethertype[3]: 0x%02X %02X %02X",
-				psfCSType->cCPacketClassificationRule.u8Ethertype[0],
-				psfCSType->cCPacketClassificationRule.u8Ethertype[1],
-				psfCSType->cCPacketClassificationRule.u8Ethertype[2]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL,
+				DBG_LVL_ALL, "u8Ethertype[3]: 0x%*ph",
+				3, psfCSType->cCPacketClassificationRule.
+					      u8Ethertype);
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u16UserPriority: 0x%X ", psfCSType->cCPacketClassificationRule.u16UserPriority);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u16VLANID: 0x%X ", psfCSType->cCPacketClassificationRule.u16VLANID);
@@ -1147,13 +1140,10 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 #ifdef VERSION_D5
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8IPv6FlowLableLength: 0x%X ",
 				psfCSType->cCPacketClassificationRule.u8IPv6FlowLableLength);
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8IPv6FlowLable[6]: 0x %02X %02X %02X %02X %02X %02X ",
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[0],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[1],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[2],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[3],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[4],
-				psfCSType->cCPacketClassificationRule.u8IPv6FlowLable[5]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL,
+				DBG_LVL_ALL, "u8IPv6FlowLable[6]: 0x%*ph ",
+				6, psfCSType->cCPacketClassificationRule.
+					      u8IPv6FlowLable);
 #endif
 	}
 
@@ -1162,13 +1152,9 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u32SFID: 0x%X", pstAddIndication->sfActiveSet.u32SFID);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u16CID: 0x%X", pstAddIndication->sfActiveSet.u16CID);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ServiceClassNameLength: 0x%X", pstAddIndication->sfActiveSet.u8ServiceClassNameLength);
-	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8ServiceClassName: 0x %02X %02X %02X %02X %02X %02X",
-			pstAddIndication->sfActiveSet.u8ServiceClassName[0],
-			pstAddIndication->sfActiveSet.u8ServiceClassName[1],
-			pstAddIndication->sfActiveSet.u8ServiceClassName[2],
-			pstAddIndication->sfActiveSet.u8ServiceClassName[3],
-			pstAddIndication->sfActiveSet.u8ServiceClassName[4],
-			pstAddIndication->sfActiveSet.u8ServiceClassName[5]);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL,
+			"u8ServiceClassName: 0x%*ph",
+			6, pstAddIndication->sfActiveSet.u8ServiceClassName);
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8MBSService: 0x%02X", pstAddIndication->sfActiveSet.u8MBSService);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8QosParamSet: 0x%02X", pstAddIndication->sfActiveSet.u8QosParamSet);
@@ -1212,7 +1198,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 		nCurClassifierCnt = MAX_CLASSIFIERS_IN_SF;
 
 	for (nIndex = 0; nIndex < nCurClassifierCnt; nIndex++)	{
-		stConvergenceSLTypes *psfCSType = NULL;
+		struct bcm_convergence_types *psfCSType = NULL;
 
 		psfCSType =  &pstAddIndication->sfActiveSet.cConvergenceSLTypes[nIndex];
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, " CCPacketClassificationRuleSI====>");
@@ -1314,7 +1300,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 
 static inline ULONG RestoreSFParam(struct bcm_mini_adapter *Adapter, ULONG ulAddrSFParamSet, PUCHAR pucDestBuffer)
 {
-	UINT  nBytesToRead = sizeof(stServiceFlowParamSI);
+	UINT  nBytesToRead = sizeof(struct bcm_connect_mgr_params);
 
 	if (ulAddrSFParamSet == 0 || NULL == pucDestBuffer) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Got Param address as 0!!");
@@ -1331,7 +1317,7 @@ static inline ULONG RestoreSFParam(struct bcm_mini_adapter *Adapter, ULONG ulAdd
 
 static ULONG StoreSFParam(struct bcm_mini_adapter *Adapter, PUCHAR pucSrcBuffer, ULONG ulAddrSFParamSet)
 {
-	UINT nBytesToWrite = sizeof(stServiceFlowParamSI);
+	UINT nBytesToWrite = sizeof(struct bcm_connect_mgr_params);
 	int ret = 0;
 
 	if (ulAddrSFParamSet == 0 || NULL == pucSrcBuffer)
@@ -1348,8 +1334,8 @@ static ULONG StoreSFParam(struct bcm_mini_adapter *Adapter, PUCHAR pucSrcBuffer,
 ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBuffer, UINT *puBufferLength)
 {
 	stLocalSFAddIndicationAlt *pstAddIndicationAlt = NULL;
-	stLocalSFAddIndication *pstAddIndication = NULL;
-	stLocalSFDeleteRequest *pstDeletionRequest;
+	struct bcm_add_indication *pstAddIndication = NULL;
+	struct bcm_del_request *pstDeletionRequest;
 	UINT uiSearchRuleIndex;
 	ULONG ulSFID;
 
@@ -1360,7 +1346,7 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 	 * we can stop the further classifying the pkt for this SF.
 	 */
 	if (pstAddIndicationAlt->u8Type == DSD_REQ) {
-		pstDeletionRequest = (stLocalSFDeleteRequest *)pvBuffer;
+		pstDeletionRequest = (struct bcm_del_request *)pvBuffer;
 
 		ulSFID = ntohl(pstDeletionRequest->u32SFID);
 		uiSearchRuleIndex = SearchSfid(Adapter, ulSFID);
@@ -1379,12 +1365,12 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 	}
 	/* For DSA_REQ, only up to "psfAuthorizedSet" parameter should be accessed by driver! */
 
-	pstAddIndication = kmalloc(sizeof(*pstAddIndication), GFP_KERNEL);
+	pstAddIndication = kmalloc(sizeof(struct bcm_add_indication), GFP_KERNEL);
 	if (pstAddIndication == NULL)
 		return 0;
 
 	/* AUTHORIZED SET */
-	pstAddIndication->psfAuthorizedSet = (stServiceFlowParamSI *)
+	pstAddIndication->psfAuthorizedSet = (struct bcm_connect_mgr_params *)
 			GetNextTargetBufferLocation(Adapter, pstAddIndicationAlt->u16TID);
 	if (!pstAddIndication->psfAuthorizedSet) {
 		kfree(pstAddIndication);
@@ -1398,10 +1384,10 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 	}
 
 	/* this can't possibly be right */
-	pstAddIndication->psfAuthorizedSet = (stServiceFlowParamSI *)ntohl((ULONG)pstAddIndication->psfAuthorizedSet);
+	pstAddIndication->psfAuthorizedSet = (struct bcm_connect_mgr_params *)ntohl((ULONG)pstAddIndication->psfAuthorizedSet);
 
 	if (pstAddIndicationAlt->u8Type == DSA_REQ) {
-		stLocalSFAddRequest AddRequest;
+		struct bcm_add_request AddRequest;
 
 		AddRequest.u8Type = pstAddIndicationAlt->u8Type;
 		AddRequest.eConnectionDir = pstAddIndicationAlt->u8Direction;
@@ -1409,8 +1395,8 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 		AddRequest.u16CID = pstAddIndicationAlt->u16CID;
 		AddRequest.u16VCID = pstAddIndicationAlt->u16VCID;
 		AddRequest.psfParameterSet = pstAddIndication->psfAuthorizedSet;
-		(*puBufferLength) = sizeof(stLocalSFAddRequest);
-		memcpy(pvBuffer, &AddRequest, sizeof(stLocalSFAddRequest));
+		(*puBufferLength) = sizeof(struct bcm_add_request);
+		memcpy(pvBuffer, &AddRequest, sizeof(struct bcm_add_request));
 		kfree(pstAddIndication);
 		return 1;
 	}
@@ -1426,7 +1412,7 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 	pstAddIndication->u8CC = pstAddIndicationAlt->u8CC;
 
 	/* ADMITTED SET */
-	pstAddIndication->psfAdmittedSet = (stServiceFlowParamSI *)
+	pstAddIndication->psfAdmittedSet = (struct bcm_connect_mgr_params *)
 		GetNextTargetBufferLocation(Adapter, pstAddIndicationAlt->u16TID);
 	if (!pstAddIndication->psfAdmittedSet) {
 		kfree(pstAddIndication);
@@ -1437,10 +1423,10 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 		return 0;
 	}
 
-	pstAddIndication->psfAdmittedSet = (stServiceFlowParamSI *)ntohl((ULONG)pstAddIndication->psfAdmittedSet);
+	pstAddIndication->psfAdmittedSet = (struct bcm_connect_mgr_params *)ntohl((ULONG)pstAddIndication->psfAdmittedSet);
 
 	/* ACTIVE SET */
-	pstAddIndication->psfActiveSet = (stServiceFlowParamSI *)
+	pstAddIndication->psfActiveSet = (struct bcm_connect_mgr_params *)
 		GetNextTargetBufferLocation(Adapter, pstAddIndicationAlt->u16TID);
 	if (!pstAddIndication->psfActiveSet) {
 		kfree(pstAddIndication);
@@ -1451,10 +1437,10 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 		return 0;
 	}
 
-	pstAddIndication->psfActiveSet = (stServiceFlowParamSI *)ntohl((ULONG)pstAddIndication->psfActiveSet);
+	pstAddIndication->psfActiveSet = (struct bcm_connect_mgr_params *)ntohl((ULONG)pstAddIndication->psfActiveSet);
 
-	(*puBufferLength) = sizeof(stLocalSFAddIndication);
-	*(stLocalSFAddIndication *)pvBuffer = *pstAddIndication;
+	(*puBufferLength) = sizeof(struct bcm_add_indication);
+	*(struct bcm_add_indication *)pvBuffer = *pstAddIndication;
 	kfree(pstAddIndication);
 	return 1;
 }
@@ -1463,10 +1449,10 @@ static inline stLocalSFAddIndicationAlt
 *RestoreCmControlResponseMessage(register struct bcm_mini_adapter *Adapter, register PVOID pvBuffer)
 {
 	ULONG ulStatus = 0;
-	stLocalSFAddIndication *pstAddIndication = NULL;
+	struct bcm_add_indication *pstAddIndication = NULL;
 	stLocalSFAddIndicationAlt *pstAddIndicationDest = NULL;
 
-	pstAddIndication = (stLocalSFAddIndication *)(pvBuffer);
+	pstAddIndication = (struct bcm_add_indication *)(pvBuffer);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "=====>");
 	if ((pstAddIndication->u8Type == DSD_REQ) ||
 		(pstAddIndication->u8Type == DSD_RSP) ||
@@ -1553,7 +1539,7 @@ ULONG SetUpTargetDsxBuffers(struct bcm_mini_adapter *Adapter)
 	if (Adapter->astTargetDsxBuffer[0].ulTargetDsxBuffer)
 		return 1;
 
-	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Size of Each DSX Buffer(Also size of ServiceFlowParamSI): %zx ", sizeof(stServiceFlowParamSI));
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Size of Each DSX Buffer(Also size of connection manager parameters): %zx ", sizeof(struct bcm_connect_mgr_params));
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Reading DSX buffer From Target location %x ", DSX_MESSAGE_EXCHANGE_BUFFER);
 
 	Status = rdmalt(Adapter, DSX_MESSAGE_EXCHANGE_BUFFER, (PUINT)&ulTargetDsxBuffersBase, sizeof(UINT));
@@ -1564,7 +1550,7 @@ ULONG SetUpTargetDsxBuffers(struct bcm_mini_adapter *Adapter)
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Base Address Of DSX  Target Buffer : 0x%lx", ulTargetDsxBuffersBase);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL,  "Tgt Buffer is Now %lx :", ulTargetDsxBuffersBase);
-	ulCntTargetBuffers = DSX_MESSAGE_EXCHANGE_BUFFER_SIZE / sizeof(stServiceFlowParamSI);
+	ulCntTargetBuffers = DSX_MESSAGE_EXCHANGE_BUFFER_SIZE / sizeof(struct bcm_connect_mgr_params);
 
 	Adapter->ulTotalTargetBuffersAvailable =
 		ulCntTargetBuffers > MAX_TARGET_DSX_BUFFERS ?
@@ -1576,7 +1562,7 @@ ULONG SetUpTargetDsxBuffers(struct bcm_mini_adapter *Adapter)
 		Adapter->astTargetDsxBuffer[i].ulTargetDsxBuffer = ulTargetDsxBuffersBase;
 		Adapter->astTargetDsxBuffer[i].valid = 1;
 		Adapter->astTargetDsxBuffer[i].tid = 0;
-		ulTargetDsxBuffersBase += sizeof(stServiceFlowParamSI);
+		ulTargetDsxBuffersBase += sizeof(struct bcm_connect_mgr_params);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "  Target DSX Buffer %lx setup at 0x%lx",
 				i, Adapter->astTargetDsxBuffer[i].ulTargetDsxBuffer);
 	}
@@ -1647,7 +1633,7 @@ int FreeAdapterDsxBuffer(struct bcm_mini_adapter *Adapter)
 BOOLEAN CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to the Adapter structure */
 				PVOID pvBuffer /* Starting Address of the Buffer, that contains the AddIndication Data */)
 {
-	stServiceFlowParamSI *psfLocalSet = NULL;
+	struct bcm_connect_mgr_params *psfLocalSet = NULL;
 	stLocalSFAddIndicationAlt *pstAddIndication = NULL;
 	stLocalSFChangeIndicationAlt *pstChangeIndication = NULL;
 	struct bcm_leader *pLeader = NULL;
@@ -1658,7 +1644,7 @@ BOOLEAN CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer
 	 */
 	pstAddIndication = RestoreCmControlResponseMessage(Adapter, pvBuffer);
 	if (pstAddIndication == NULL) {
-		ClearTargetDSXBuffer(Adapter, ((stLocalSFAddIndication *)pvBuffer)->u16TID, FALSE);
+		ClearTargetDSXBuffer(Adapter, ((struct bcm_add_indication *)pvBuffer)->u16TID, FALSE);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Error in restoring Service Flow param structure from DSx message");
 		return FALSE;
 	}
@@ -1870,10 +1856,10 @@ BOOLEAN CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer
 		UINT uiSearchRuleIndex;
 		ULONG ulSFID;
 
-		pLeader->PLength = sizeof(stLocalSFDeleteIndication);
-		*((stLocalSFDeleteIndication *)&(Adapter->caDsxReqResp[LEADER_SIZE])) = *((stLocalSFDeleteIndication *)pstAddIndication);
+		pLeader->PLength = sizeof(struct bcm_del_indication);
+		*((struct bcm_del_indication *)&(Adapter->caDsxReqResp[LEADER_SIZE])) = *((struct bcm_del_indication *)pstAddIndication);
 
-		ulSFID = ntohl(((stLocalSFDeleteIndication *)pstAddIndication)->u32SFID);
+		ulSFID = ntohl(((struct bcm_del_indication *)pstAddIndication)->u32SFID);
 		uiSearchRuleIndex = SearchSfid(Adapter, ulSFID);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "DSD - Removing connection %x", uiSearchRuleIndex);
 
@@ -1884,7 +1870,7 @@ BOOLEAN CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer
 		}
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "SENDING DSD RESPONSE TO MAC");
-		((stLocalSFDeleteIndication *)&(Adapter->caDsxReqResp[LEADER_SIZE]))->u8Type = DSD_RSP;
+		((struct bcm_del_indication *)&(Adapter->caDsxReqResp[LEADER_SIZE]))->u8Type = DSD_RSP;
 		CopyBufferToControlPacket(Adapter, (PVOID)Adapter->caDsxReqResp);
 	}
 	case DSD_RSP:
@@ -1927,7 +1913,7 @@ int get_dsx_sf_data_to_application(struct bcm_mini_adapter *Adapter, UINT uiSFId
 VOID OverrideServiceFlowParams(struct bcm_mini_adapter *Adapter, PUINT puiBuffer)
 {
 	B_UINT32 u32NumofSFsinMsg = ntohl(*(puiBuffer + 1));
-	stIM_SFHostNotify *pHostInfo = NULL;
+	struct bcm_stim_sfhostnotify *pHostInfo = NULL;
 	UINT uiSearchRuleIndex = 0;
 	ULONG ulSFID = 0;
 
@@ -1936,7 +1922,7 @@ VOID OverrideServiceFlowParams(struct bcm_mini_adapter *Adapter, PUINT puiBuffer
 
 	while (u32NumofSFsinMsg != 0 && u32NumofSFsinMsg < NO_OF_QUEUES) {
 		u32NumofSFsinMsg--;
-		pHostInfo = (stIM_SFHostNotify *)puiBuffer;
+		pHostInfo = (struct bcm_stim_sfhostnotify *)puiBuffer;
 		puiBuffer = (PUINT)(pHostInfo + 1);
 
 		ulSFID = ntohl(pHostInfo->SFID);
diff --git a/drivers/staging/bcm/CmHost.h b/drivers/staging/bcm/CmHost.h
index 4cc6f93f232..1c5a07c7bbe 100644
--- a/drivers/staging/bcm/CmHost.h
+++ b/drivers/staging/bcm/CmHost.h
@@ -35,8 +35,7 @@ typedef struct stLocalSFAddRequestAlt{
     B_UINT16                        u16VCID;
 
 
-	/// \brief structure ParameterSet
-    stServiceFlowParamSI              sfParameterSet;
+	struct bcm_connect_mgr_params sfParameterSet;
 
     //USE_MEMORY_MANAGER();
 }stLocalSFAddRequestAlt;
@@ -50,12 +49,9 @@ typedef struct stLocalSFAddIndicationAlt{
     B_UINT16                        u16CID;
     /// \brief 16bitVCID
     B_UINT16                        u16VCID;
-	/// \brief structure AuthorizedSet
-    stServiceFlowParamSI              sfAuthorizedSet;
-    /// \brief structure AdmittedSet
-    stServiceFlowParamSI              sfAdmittedSet;
-	/// \brief structure ActiveSet
-    stServiceFlowParamSI              sfActiveSet;
+	struct bcm_connect_mgr_params sfAuthorizedSet;
+	struct bcm_connect_mgr_params sfAdmittedSet;
+	struct bcm_connect_mgr_params sfActiveSet;
 
 	B_UINT8 						u8CC;	/**<  Confirmation Code*/
 	B_UINT8 						u8Padd; 	/**<  8-bit Padding */
@@ -72,12 +68,9 @@ typedef struct stLocalSFAddConfirmationAlt{
     B_UINT16                        u16CID;
     /// \brief 16bitVCID
     B_UINT16                        u16VCID;
-    /// \brief structure AuthorizedSet
-    stServiceFlowParamSI              sfAuthorizedSet;
-    /// \brief structure AdmittedSet
-    stServiceFlowParamSI              sfAdmittedSet;
-    /// \brief structure ActiveSet
-    stServiceFlowParamSI              sfActiveSet;
+	struct bcm_connect_mgr_params sfAuthorizedSet;
+	struct bcm_connect_mgr_params sfAdmittedSet;
+	struct bcm_connect_mgr_params sfActiveSet;
 }stLocalSFAddConfirmationAlt;
 
 
@@ -91,16 +84,13 @@ typedef struct stLocalSFChangeRequestAlt{
     /// \brief 16bitVCID
     B_UINT16                        u16VCID;
 	/*
-	//Pointer location at which following Service Flow param Structure can be read
-	//from the target. We get only the address location and we need to read out the
-	//entire SF param structure at the given location on target
+	//Pointer location at which following connection manager param Structure can be read
+	//from the target. We only get the address location and we need to read out the
+	//entire connection manager param structure at the given location on target
 	*/
-    /// \brief structure AuthorizedSet
-    stServiceFlowParamSI              sfAuthorizedSet;
-    /// \brief structure AdmittedSet
-    stServiceFlowParamSI              sfAdmittedSet;
-    /// \brief structure ParameterSet
-    stServiceFlowParamSI              sfActiveSet;
+	struct bcm_connect_mgr_params sfAuthorizedSet;
+	struct bcm_connect_mgr_params sfAdmittedSet;
+	struct bcm_connect_mgr_params sfActiveSet;
 
 	B_UINT8 						u8CC;	/**<  Confirmation Code*/
 	B_UINT8 						u8Padd; 	/**<  8-bit Padding */
@@ -117,12 +107,9 @@ typedef struct stLocalSFChangeConfirmationAlt{
     B_UINT16                        u16CID;
     /// \brief 16bitVCID
     B_UINT16                        u16VCID;
-    /// \brief structure AuthorizedSet
-    stServiceFlowParamSI              sfAuthorizedSet;
-    /// \brief structure AdmittedSet
-    stServiceFlowParamSI              sfAdmittedSet;
-    /// \brief structure ActiveSet
-    stServiceFlowParamSI              sfActiveSet;
+	struct bcm_connect_mgr_params sfAuthorizedSet;
+	struct bcm_connect_mgr_params sfAdmittedSet;
+	struct bcm_connect_mgr_params sfActiveSet;
 
 }stLocalSFChangeConfirmationAlt;
 
@@ -135,12 +122,9 @@ typedef struct stLocalSFChangeIndicationAlt{
     B_UINT16                        u16CID;
     /// \brief 16bitVCID
     B_UINT16                        u16VCID;
-    /// \brief structure AuthorizedSet
-    stServiceFlowParamSI              sfAuthorizedSet;
-    /// \brief structure AdmittedSet
-    stServiceFlowParamSI              sfAdmittedSet;
-    /// \brief structure ActiveSet
-    stServiceFlowParamSI              sfActiveSet;
+	struct bcm_connect_mgr_params sfAuthorizedSet;
+	struct bcm_connect_mgr_params sfAdmittedSet;
+	struct bcm_connect_mgr_params sfActiveSet;
 
 	B_UINT8 						u8CC;	/**<  Confirmation Code*/
 	B_UINT8 						u8Padd; 	/**<  8-bit Padding */
diff --git a/drivers/staging/bcm/InterfaceInit.c b/drivers/staging/bcm/InterfaceInit.c
index 8f85de6a57b..b05f5f73548 100644
--- a/drivers/staging/bcm/InterfaceInit.c
+++ b/drivers/staging/bcm/InterfaceInit.c
@@ -8,6 +8,7 @@ static struct usb_device_id InterfaceUsbtable[] = {
 	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_226) },
 	{ USB_DEVICE(BCM_USB_VENDOR_ID_FOXCONN, BCM_USB_PRODUCT_ID_1901) },
 	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_TU25) },
+	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_226) },
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, InterfaceUsbtable);
@@ -669,16 +670,24 @@ struct class *bcm_class;
 
 static __init int bcm_init(void)
 {
-	printk(KERN_INFO "%s: %s, %s\n", DRV_NAME, DRV_DESCRIPTION, DRV_VERSION);
-	printk(KERN_INFO "%s\n", DRV_COPYRIGHT);
+	int retval;
+
+	pr_info("%s: %s, %s\n", DRV_NAME, DRV_DESCRIPTION, DRV_VERSION);
+	pr_info("%s\n", DRV_COPYRIGHT);
 
 	bcm_class = class_create(THIS_MODULE, DRV_NAME);
 	if (IS_ERR(bcm_class)) {
-		printk(KERN_ERR DRV_NAME ": could not create class\n");
+		pr_err(DRV_NAME ": could not create class\n");
 		return PTR_ERR(bcm_class);
 	}
 
-	return usb_register(&usbbcm_driver);
+	retval = usb_register(&usbbcm_driver);
+	if (retval < 0) {
+		pr_err(DRV_NAME ": could not register usb driver\n");
+		class_destroy(bcm_class);
+		return retval;
+	}
+	return 0;
 }
 
 static __exit void bcm_exit(void)
diff --git a/drivers/staging/bcm/InterfaceInit.h b/drivers/staging/bcm/InterfaceInit.h
index 058315a64c0..866924e35f9 100644
--- a/drivers/staging/bcm/InterfaceInit.h
+++ b/drivers/staging/bcm/InterfaceInit.h
@@ -1,27 +1,26 @@
 #ifndef _INTERFACE_INIT_H
 #define _INTERFACE_INIT_H
 
-#define BCM_USB_VENDOR_ID_T3 	0x198f
-#define BCM_USB_VENDOR_ID_FOXCONN       0x0489
-#define BCM_USB_VENDOR_ID_ZTE   0x19d2
+#define BCM_USB_VENDOR_ID_T3	0x198f
+#define BCM_USB_VENDOR_ID_FOXCONN	0x0489
+#define BCM_USB_VENDOR_ID_ZTE	0x19d2
 
-#define BCM_USB_PRODUCT_ID_T3 	0x0300
-#define BCM_USB_PRODUCT_ID_T3B 	0x0210
-#define BCM_USB_PRODUCT_ID_T3L 	0x0220
-#define BCM_USB_PRODUCT_ID_SM250 	0xbccd
-#define BCM_USB_PRODUCT_ID_SYM  0x15E
-#define BCM_USB_PRODUCT_ID_1901 0xe017
-#define BCM_USB_PRODUCT_ID_226  0x0132
-#define BCM_USB_PRODUCT_ID_ZTE_TU25 0x0007
+#define BCM_USB_PRODUCT_ID_T3	0x0300
+#define BCM_USB_PRODUCT_ID_T3B	0x0210
+#define BCM_USB_PRODUCT_ID_T3L	0x0220
+#define BCM_USB_PRODUCT_ID_SM250	0xbccd
+#define BCM_USB_PRODUCT_ID_SYM	0x15E
+#define BCM_USB_PRODUCT_ID_1901	0xe017
+#define BCM_USB_PRODUCT_ID_226	0x0132 /* not sure if this is valid */
+#define BCM_USB_PRODUCT_ID_ZTE_226 0x172
+#define BCM_USB_PRODUCT_ID_ZTE_TU25	0x0007
 
-#define BCM_USB_MINOR_BASE 		192
+#define BCM_USB_MINOR_BASE	192
 
+int InterfaceInitialize(void);
 
-INT InterfaceInitialize(void);
+int InterfaceExit(void);
 
-INT InterfaceExit(void);
-
-INT usbbcm_worker_thread(PS_INTERFACE_ADAPTER psIntfAdapter);
+int usbbcm_worker_thread(PS_INTERFACE_ADAPTER psIntfAdapter);
 
 #endif
-
diff --git a/drivers/staging/bcm/Kconfig b/drivers/staging/bcm/Kconfig
index 96adb1026c4..83c9752504d 100644
--- a/drivers/staging/bcm/Kconfig
+++ b/drivers/staging/bcm/Kconfig
@@ -1,6 +1,6 @@
 config BCM_WIMAX
        tristate "Beceem BCS200/BCS220-3 and BCSM250 wimax support"
-       depends on USB && NET && EXPERIMENTAL
+       depends on USB && NET
        default N
        help
          This is an experimental driver for the Beceem WIMAX chipset used
diff --git a/drivers/staging/bcm/Misc.c b/drivers/staging/bcm/Misc.c
index f545716c666..f13a9582a82 100644
--- a/drivers/staging/bcm/Misc.c
+++ b/drivers/staging/bcm/Misc.c
@@ -752,7 +752,10 @@ VOID DumpPackInfo(struct bcm_mini_adapter *Adapter)
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "AuthzSet: %x\n", Adapter->PackInfo[uiLoopIndex].bAuthorizedSet);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "ClassifyPrority: %x\n", Adapter->PackInfo[uiLoopIndex].bClassifierPriority);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "uiMaxLatency: %x\n", Adapter->PackInfo[uiLoopIndex].uiMaxLatency);
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "ServiceClassName: %x %x %x %x\n", Adapter->PackInfo[uiLoopIndex].ucServiceClassName[0], Adapter->PackInfo[uiLoopIndex].ucServiceClassName[1], Adapter->PackInfo[uiLoopIndex].ucServiceClassName[2], Adapter->PackInfo[uiLoopIndex].ucServiceClassName[3]);
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO,
+				DBG_LVL_ALL, "ServiceClassName: %*ph\n",
+				4, Adapter->PackInfo[uiLoopIndex].
+					    ucServiceClassName);
 /* BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "bHeaderSuppressionEnabled :%X\n", Adapter->PackInfo[uiLoopIndex].bHeaderSuppressionEnabled);
  * BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "uiTotalTxBytes:%X\n", Adapter->PackInfo[uiLoopIndex].uiTotalTxBytes);
  * BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "uiTotalRxBytes:%X\n", Adapter->PackInfo[uiLoopIndex].uiTotalRxBytes);
diff --git a/drivers/staging/bcm/PHSModule.c b/drivers/staging/bcm/PHSModule.c
index 479574234e4..6dc0bbcfeab 100644
--- a/drivers/staging/bcm/PHSModule.c
+++ b/drivers/staging/bcm/PHSModule.c
@@ -66,7 +66,7 @@ Input parameters:		IN struct bcm_mini_adapter *Adapter         - Miniport Adapte
 						BOOLEAN bHeaderSuppressionEnabled - indicates if header suprression is enabled for SF.
 
 Return:					STATUS_SUCCESS - If the send was successful.
-						Other          - If an error occured.
+						Other  - If an error occurred.
 */
 
 int PHSTransmit(struct bcm_mini_adapter *Adapter,
@@ -346,7 +346,7 @@ int phs_init(PPHS_DEVICE_EXTENSION pPhsdeviceExtension, struct bcm_mini_adapter
 
 
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\n phs_init Successfull");
+	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\n phs_init Successful");
 	return STATUS_SUCCESS;
 }
 
diff --git a/drivers/staging/bcm/Prototypes.h b/drivers/staging/bcm/Prototypes.h
index 3c8cc5ba2e2..3ec8f800a5b 100644
--- a/drivers/staging/bcm/Prototypes.h
+++ b/drivers/staging/bcm/Prototypes.h
@@ -95,7 +95,7 @@ void beceem_parse_target_struct(struct bcm_mini_adapter *Adapter);
 int bcm_ioctl_fw_download(struct bcm_mini_adapter *Adapter, struct bcm_firmware_info *psFwInfo);
 
 void CopyMIBSExtendedSFParameters(struct bcm_mini_adapter *Adapter,
-		CServiceFlowParamSI *psfLocalSet, UINT uiSearchRuleIndex);
+		struct bcm_connect_mgr_params *psfLocalSet, UINT uiSearchRuleIndex);
 
 VOID ResetCounters(struct bcm_mini_adapter *Adapter);
 
diff --git a/drivers/staging/bcm/Transmit.c b/drivers/staging/bcm/Transmit.c
index 5e603ce76fe..27e8c890777 100644
--- a/drivers/staging/bcm/Transmit.c
+++ b/drivers/staging/bcm/Transmit.c
@@ -1,162 +1,149 @@
 /**
-@file Transmit.c
-@defgroup tx_functions Transmission
-@section Queueing
-@dot
-digraph transmit1 {
-node[shape=box]
-edge[weight=5;color=red]
-
-bcm_transmit->GetPacketQueueIndex[label="IP Packet"]
-GetPacketQueueIndex->IpVersion4[label="IPV4"]
-GetPacketQueueIndex->IpVersion6[label="IPV6"]
-}
-
-@enddot
-
-@section De-Queueing
-@dot
-digraph transmit2 {
-node[shape=box]
-edge[weight=5;color=red]
-interrupt_service_thread->transmit_packets
-tx_pkt_hdler->transmit_packets
-transmit_packets->CheckAndSendPacketFromIndex
-transmit_packets->UpdateTokenCount
-CheckAndSendPacketFromIndex->PruneQueue
-CheckAndSendPacketFromIndex->IsPacketAllowedForFlow
-CheckAndSendPacketFromIndex->SendControlPacket[label="control pkt"]
-SendControlPacket->bcm_cmd53
-CheckAndSendPacketFromIndex->SendPacketFromQueue[label="data pkt"]
-SendPacketFromQueue->SetupNextSend->bcm_cmd53
-}
-@enddot
-*/
+ * @file Transmit.c
+ * @defgroup tx_functions Transmission
+ * @section Queueing
+ * @dot
+ * digraph transmit1 {
+ * node[shape=box]
+ * edge[weight=5;color=red]
+ *
+ * bcm_transmit->GetPacketQueueIndex[label="IP Packet"]
+ * GetPacketQueueIndex->IpVersion4[label="IPV4"]
+ * GetPacketQueueIndex->IpVersion6[label="IPV6"]
+ * }
+ *
+ * @enddot
+ *
+ * @section De-Queueing
+ * @dot
+ * digraph transmit2 {
+ * node[shape=box]
+ * edge[weight=5;color=red]
+ * interrupt_service_thread->transmit_packets
+ * tx_pkt_hdler->transmit_packets
+ * transmit_packets->CheckAndSendPacketFromIndex
+ * transmit_packets->UpdateTokenCount
+ * CheckAndSendPacketFromIndex->PruneQueue
+ * CheckAndSendPacketFromIndex->IsPacketAllowedForFlow
+ * CheckAndSendPacketFromIndex->SendControlPacket[label="control pkt"]
+ * SendControlPacket->bcm_cmd53
+ * CheckAndSendPacketFromIndex->SendPacketFromQueue[label="data pkt"]
+ * SendPacketFromQueue->SetupNextSend->bcm_cmd53
+ * }
+ * @enddot
+ */
 
 #include "headers.h"
 
-
 /**
-@ingroup ctrl_pkt_functions
-This function dispatches control packet to the h/w interface
-@return zero(success) or -ve value(failure)
-*/
-INT SendControlPacket(struct bcm_mini_adapter *Adapter, char *pControlPacket)
+ * @ingroup ctrl_pkt_functions
+ * This function dispatches control packet to the h/w interface
+ * @return zero(success) or -ve value(failure)
+ */
+int SendControlPacket(struct bcm_mini_adapter *Adapter, char *pControlPacket)
 {
 	struct bcm_leader *PLeader = (struct bcm_leader *)pControlPacket;
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Tx");
-	if(!pControlPacket || !Adapter)
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Got NULL Control Packet or Adapter");
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Tx");
+	if (!pControlPacket || !Adapter) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Got NULL Control Packet or Adapter");
+		return STATUS_FAILURE;
+	}
+	if ((atomic_read(&Adapter->CurrNumFreeTxDesc) <
+			((PLeader->PLength-1)/MAX_DEVICE_DESC_SIZE)+1))	{
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "NO FREE DESCRIPTORS TO SEND CONTROL PACKET");
 		return STATUS_FAILURE;
 	}
-	if((atomic_read( &Adapter->CurrNumFreeTxDesc ) <
-		((PLeader->PLength-1)/MAX_DEVICE_DESC_SIZE)+1))
-    {
-    	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "NO FREE DESCRIPTORS TO SEND CONTROL PACKET");
-        return STATUS_FAILURE;
-    }
 
 	/* Update the netdevice statistics */
 	/* Dump Packet  */
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader Status: %x", PLeader->Status);
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader VCID: %x",PLeader->Vcid);
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader Length: %x",PLeader->PLength);
-	if(Adapter->device_removed)
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader Status: %x", PLeader->Status);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader VCID: %x", PLeader->Vcid);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Leader Length: %x", PLeader->PLength);
+	if (Adapter->device_removed)
 		return 0;
 
 	if (netif_msg_pktdata(Adapter))
 		print_hex_dump(KERN_DEBUG, PFX "tx control: ", DUMP_PREFIX_NONE,
-			       16, 1, pControlPacket, PLeader->PLength + LEADER_SIZE, 0);
+			16, 1, pControlPacket, PLeader->PLength + LEADER_SIZE, 0);
 
 	Adapter->interface_transmit(Adapter->pvInterfaceAdapter,
-					pControlPacket, (PLeader->PLength + LEADER_SIZE));
+				pControlPacket, (PLeader->PLength + LEADER_SIZE));
 
 	atomic_dec(&Adapter->CurrNumFreeTxDesc);
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "<=========");
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "<=========");
 	return STATUS_SUCCESS;
 }
 
 /**
-@ingroup tx_functions
-This function despatches the IP packets with the given vcid
-to the target via the host h/w interface.
-@return  zero(success) or -ve value(failure)
-*/
-INT SetupNextSend(struct bcm_mini_adapter *Adapter,  struct sk_buff *Packet, USHORT Vcid)
+ * @ingroup tx_functions
+ * This function despatches the IP packets with the given vcid
+ * to the target via the host h/w interface.
+ * @return  zero(success) or -ve value(failure)
+ */
+int SetupNextSend(struct bcm_mini_adapter *Adapter,  struct sk_buff *Packet, USHORT Vcid)
 {
-	int		status=0;
-	BOOLEAN bHeaderSupressionEnabled = FALSE;
-	B_UINT16            uiClassifierRuleID;
+	int	status = 0;
+	BOOLEAN	bHeaderSupressionEnabled = FALSE;
+	B_UINT16 uiClassifierRuleID;
 	u16	QueueIndex = skb_get_queue_mapping(Packet);
-	struct bcm_leader Leader={0};
+	struct bcm_leader Leader = {0};
 
-	if(Packet->len > MAX_DEVICE_DESC_SIZE)
-	{
+	if (Packet->len > MAX_DEVICE_DESC_SIZE) {
 		status = STATUS_FAILURE;
 		goto errExit;
 	}
 
 	/* Get the Classifier Rule ID */
-	uiClassifierRuleID = *((UINT32*) (Packet->cb)+SKB_CB_CLASSIFICATION_OFFSET);
+	uiClassifierRuleID = *((UINT32 *) (Packet->cb) + SKB_CB_CLASSIFICATION_OFFSET);
 
 	bHeaderSupressionEnabled = Adapter->PackInfo[QueueIndex].bHeaderSuppressionEnabled
 		& Adapter->bPHSEnabled;
 
-	if(Adapter->device_removed)
-		{
+	if (Adapter->device_removed) {
 		status = STATUS_FAILURE;
 		goto errExit;
-		}
+	}
 
 	status = PHSTransmit(Adapter, &Packet, Vcid, uiClassifierRuleID, bHeaderSupressionEnabled,
-							(UINT *)&Packet->len, Adapter->PackInfo[QueueIndex].bEthCSSupport);
+			(UINT *)&Packet->len, Adapter->PackInfo[QueueIndex].bEthCSSupport);
 
-	if(status != STATUS_SUCCESS)
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "PHS Transmit failed..\n");
+	if (status != STATUS_SUCCESS) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "PHS Transmit failed..\n");
 		goto errExit;
 	}
 
-	Leader.Vcid	= Vcid;
+	Leader.Vcid = Vcid;
 
-	if(TCP_ACK == *((UINT32*) (Packet->cb) + SKB_CB_TCPACK_OFFSET ))
+	if (TCP_ACK == *((UINT32 *) (Packet->cb) + SKB_CB_TCPACK_OFFSET))
 		Leader.Status = LEADER_STATUS_TCP_ACK;
 	else
 		Leader.Status = LEADER_STATUS;
 
-	if(Adapter->PackInfo[QueueIndex].bEthCSSupport)
-	{
+	if (Adapter->PackInfo[QueueIndex].bEthCSSupport) {
 		Leader.PLength = Packet->len;
-		if(skb_headroom(Packet) < LEADER_SIZE)
-        {
-			if((status = skb_cow(Packet,LEADER_SIZE)))
-			{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL,"bcm_transmit : Failed To Increase headRoom\n");
+		if (skb_headroom(Packet) < LEADER_SIZE) {
+			status = skb_cow(Packet, LEADER_SIZE);
+			if (status) {
+				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "bcm_transmit : Failed To Increase headRoom\n");
 				goto errExit;
 			}
 		}
 		skb_push(Packet, LEADER_SIZE);
 		memcpy(Packet->data, &Leader, LEADER_SIZE);
-	}
-	else
-	{
+	} else {
 		Leader.PLength = Packet->len - ETH_HLEN;
 		memcpy((struct bcm_leader *)skb_pull(Packet, (ETH_HLEN - LEADER_SIZE)), &Leader, LEADER_SIZE);
 	}
 
 	status = Adapter->interface_transmit(Adapter->pvInterfaceAdapter,
-			Packet->data, (Leader.PLength + LEADER_SIZE));
-	if(status)
-	{
+					Packet->data, (Leader.PLength + LEADER_SIZE));
+	if (status) {
 		++Adapter->dev->stats.tx_errors;
 		if (netif_msg_tx_err(Adapter))
 			pr_info(PFX "%s: transmit error %d\n", Adapter->dev->name,
 				status);
-	}
-	else
-	{
+	} else {
 		struct net_device_stats *netstats = &Adapter->dev->stats;
 		Adapter->PackInfo[QueueIndex].uiTotalTxBytes += Leader.PLength;
 
@@ -175,7 +162,6 @@ INT SetupNextSend(struct bcm_mini_adapter *Adapter,  struct sk_buff *Packet, USH
 	atomic_dec(&Adapter->CurrNumFreeTxDesc);
 
 errExit:
-
 	dev_kfree_skb(Packet);
 	return status;
 }
@@ -188,73 +174,65 @@ static int tx_pending(struct bcm_mini_adapter *Adapter)
 }
 
 /**
-@ingroup tx_functions
-Transmit thread
-*/
-int tx_pkt_handler(struct bcm_mini_adapter *Adapter  /**< pointer to adapter object*/
-				)
+ * @ingroup tx_functions
+ * Transmit thread
+ */
+int tx_pkt_handler(struct bcm_mini_adapter *Adapter /**< pointer to adapter object*/)
 {
 	int status = 0;
 
-	while(! kthread_should_stop()) {
+	while (!kthread_should_stop()) {
 		/* FIXME - the timeout looks like workaround for racey usage of TxPktAvail */
-		if(Adapter->LinkUpStatus)
+		if (Adapter->LinkUpStatus)
 			wait_event_timeout(Adapter->tx_packet_wait_queue,
-					   tx_pending(Adapter), msecs_to_jiffies(10));
+					tx_pending(Adapter), msecs_to_jiffies(10));
 		else
 			wait_event_interruptible(Adapter->tx_packet_wait_queue,
-						 tx_pending(Adapter));
+						tx_pending(Adapter));
 
 		if (Adapter->device_removed)
 			break;
 
-		if(Adapter->downloadDDR == 1)
-		{
-			Adapter->downloadDDR +=1;
+		if (Adapter->downloadDDR == 1) {
+			Adapter->downloadDDR += 1;
 			status = download_ddr_settings(Adapter);
-			if(status)
+			if (status)
 				pr_err(PFX "DDR DOWNLOAD FAILED! %d\n", status);
 			continue;
 		}
 
-		//Check end point for halt/stall.
-		if(Adapter->bEndPointHalted == TRUE)
-		{
+		/* Check end point for halt/stall. */
+		if (Adapter->bEndPointHalted == TRUE) {
 			Bcm_clear_halt_of_endpoints(Adapter);
 			Adapter->bEndPointHalted = FALSE;
 			StartInterruptUrb((PS_INTERFACE_ADAPTER)(Adapter->pvInterfaceAdapter));
 		}
 
-		if(Adapter->LinkUpStatus && !Adapter->IdleMode)
-		{
-			if(atomic_read(&Adapter->TotalPacketCount))
-			{
+		if (Adapter->LinkUpStatus && !Adapter->IdleMode) {
+			if (atomic_read(&Adapter->TotalPacketCount))
 				update_per_sf_desc_cnts(Adapter);
-			}
 		}
 
-		if( atomic_read(&Adapter->CurrNumFreeTxDesc) &&
+		if (atomic_read(&Adapter->CurrNumFreeTxDesc) &&
 			Adapter->LinkStatus == SYNC_UP_REQUEST &&
-			!Adapter->bSyncUpRequestSent)
-		{
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Calling LinkMessage");
+			!Adapter->bSyncUpRequestSent) {
+
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Calling LinkMessage");
 			LinkMessage(Adapter);
 		}
 
-		if((Adapter->IdleMode || Adapter->bShutStatus) && atomic_read(&Adapter->TotalPacketCount))
-		{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Device in Low Power mode...waking up");
-    			Adapter->usIdleModePattern = ABORT_IDLE_MODE;
-				Adapter->bWakeUpDevice = TRUE;
-				wake_up(&Adapter->process_rx_cntrlpkt);
+		if ((Adapter->IdleMode || Adapter->bShutStatus) && atomic_read(&Adapter->TotalPacketCount)) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Device in Low Power mode...waking up");
+			Adapter->usIdleModePattern = ABORT_IDLE_MODE;
+			Adapter->bWakeUpDevice = TRUE;
+			wake_up(&Adapter->process_rx_cntrlpkt);
 		}
 
 		transmit_packets(Adapter);
-
 		atomic_set(&Adapter->TxPktAvail, 0);
 	}
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Exiting the tx thread..\n");
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Exiting the tx thread..\n");
 	Adapter->transmit_packet_thread = NULL;
 	return 0;
 }
diff --git a/drivers/staging/bcm/cntrl_SignalingInterface.h b/drivers/staging/bcm/cntrl_SignalingInterface.h
index 7619e4b819b..990e809e968 100644
--- a/drivers/staging/bcm/cntrl_SignalingInterface.h
+++ b/drivers/staging/bcm/cntrl_SignalingInterface.h
@@ -1,423 +1,311 @@
 #ifndef CNTRL_SIGNALING_INTERFACE_
 #define CNTRL_SIGNALING_INTERFACE_
 
-
-
-
-#define DSA_REQ 11
-#define DSA_RSP 12
-#define DSA_ACK 13
-#define DSC_REQ 14
-#define DSC_RSP 15
-#define DSC_ACK 16
-#define DSD_REQ 17
-#define DSD_RSP 18
-#define DSD_ACK 19
-#define MAX_CLASSIFIERS_IN_SF  4
-
-
-#define MAX_STRING_LEN 20
-#define MAX_PHS_LENGTHS 255
-#define VENDOR_PHS_PARAM_LENGTH 10
-#define MAX_NUM_ACTIVE_BS 10
-#define AUTH_TOKEN_LENGTH	10
-#define NUM_HARQ_CHANNELS	16	//Changed from 10 to 16 to accommodate all HARQ channels
-#define VENDOR_CLASSIFIER_PARAM_LENGTH 1 //Changed the size to 1 byte since we dnt use it
-#define  VENDOR_SPECIF_QOS_PARAM 1
-#define VENDOR_PHS_PARAM_LENGTH	10
-#define MBS_CONTENTS_ID_LENGTH	10
-#define GLOBAL_SF_CLASSNAME_LENGTH 6
-
-#define TYPE_OF_SERVICE_LENGTH				3
-#define IP_MASKED_SRC_ADDRESS_LENGTH			32
-#define IP_MASKED_DEST_ADDRESS_LENGTH		32
-#define PROTOCOL_SRC_PORT_RANGE_LENGTH		4
-#define PROTOCOL_DEST_PORT_RANGE_LENGTH		4
-#define ETHERNET_DEST_MAC_ADDR_LENGTH		12
-#define ETHERNET_SRC_MAC_ADDR_LENGTH		12
-#define NUM_ETHERTYPE_BYTES  3
-#define NUM_IPV6_FLOWLABLE_BYTES 3
-
-
-////////////////////////////////////////////////////////////////////////////////
-////////////////////////structure Definitions///////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-/// \brief class cCPacketClassificationRule
-struct _stCPacketClassificationRuleSI{
-
-	/**  16bit UserPriority Of The Service Flow*/
-    B_UINT16                        u16UserPriority;
-	/**  16bit VLANID Of The Service Flow*/
-    B_UINT16                        u16VLANID;
-	/**  16bit Packet Classification RuleIndex Of The Service Flow*/
-    B_UINT16                        u16PacketClassificationRuleIndex;
-	/**  8bit Classifier Rule Priority Of The Service Flow*/
-    B_UINT8                         u8ClassifierRulePriority;
-	/**  Length of IP TypeOfService field*/
-	B_UINT8                         u8IPTypeOfServiceLength;
-	/**  3bytes IP TypeOfService */
-    B_UINT8                         u8IPTypeOfService[TYPE_OF_SERVICE_LENGTH];
-	/** Protocol used in classification of Service Flow*/
-    B_UINT8                         u8Protocol;
-	/**  Length of IP Masked Source Address */
-    B_UINT8                         u8IPMaskedSourceAddressLength;
-	/**  IP Masked Source Address used in classification for the Service Flow*/
-    B_UINT8                         u8IPMaskedSourceAddress[IP_MASKED_SRC_ADDRESS_LENGTH];
-	/**  Length of IP Destination Address */
-    B_UINT8                         u8IPDestinationAddressLength;
-	/**  IP Destination Address used in classification for the Service Flow*/
-    B_UINT8                         u8IPDestinationAddress[IP_MASKED_DEST_ADDRESS_LENGTH];
-	/** Length of Protocol Source Port Range */
-    B_UINT8                         u8ProtocolSourcePortRangeLength;
-	/**  Protocol Source Port Range used in the Service Flow*/
-    B_UINT8                         u8ProtocolSourcePortRange[PROTOCOL_SRC_PORT_RANGE_LENGTH];
-	/** Length of Protocol Dest Port Range */
-    B_UINT8                         u8ProtocolDestPortRangeLength;
-	/**  Protocol Dest Port Range used in the Service Flow*/
-    B_UINT8                         u8ProtocolDestPortRange[PROTOCOL_DEST_PORT_RANGE_LENGTH];
-	/** Length of Ethernet Destination MAC Address  */
-    B_UINT8                         u8EthernetDestMacAddressLength;
-	/**  Ethernet Destination MAC Address  used in classification of the Service Flow*/
-    B_UINT8                         u8EthernetDestMacAddress[ETHERNET_DEST_MAC_ADDR_LENGTH];
-	/** Length of Ethernet Source MAC Address  */
-    B_UINT8                         u8EthernetSourceMACAddressLength;
-	/**  Ethernet Source MAC Address  used in classification of the Service Flow*/
-    B_UINT8                         u8EthernetSourceMACAddress[ETHERNET_SRC_MAC_ADDR_LENGTH];
-	/**  Length of Ethertype */
-	B_UINT8                         u8EthertypeLength;
-	/**  3bytes Ethertype Of The Service Flow*/
-    B_UINT8                         u8Ethertype[NUM_ETHERTYPE_BYTES];
-	/**  8bit Associated PHSI Of The Service Flow*/
-    B_UINT8                         u8AssociatedPHSI;
-	/** Length of Vendor Specific Classifier Param length Of The Service Flow*/
-    B_UINT8                         u8VendorSpecificClassifierParamLength;
-	/**  Vendor Specific Classifier Param Of The Service Flow*/
-    B_UINT8                         u8VendorSpecificClassifierParam[VENDOR_CLASSIFIER_PARAM_LENGTH];
-    /** Length Of IPv6 Flow Lable of the Service Flow*/
-    B_UINT8                         u8IPv6FlowLableLength;
-	/**  IPv6 Flow Lable Of The Service Flow*/
-    B_UINT8                         u8IPv6FlowLable[NUM_IPV6_FLOWLABLE_BYTES];
-	/**  Action associated with the classifier rule*/
-    B_UINT8							u8ClassifierActionRule;
-    B_UINT16							u16ValidityBitMap;
+#define DSA_REQ			11
+#define DSA_RSP			12
+#define DSA_ACK			13
+#define DSC_REQ			14
+#define DSC_RSP			15
+#define DSC_ACK			16
+#define DSD_REQ			17
+#define DSD_RSP			18
+#define DSD_ACK			19
+#define MAX_CLASSIFIERS_IN_SF	4
+
+#define MAX_STRING_LEN			20
+#define MAX_PHS_LENGTHS			255
+#define VENDOR_PHS_PARAM_LENGTH		10
+#define MAX_NUM_ACTIVE_BS		10
+#define AUTH_TOKEN_LENGTH		10
+#define NUM_HARQ_CHANNELS		16 /* Changed from 10 to 16 to accommodate all HARQ channels */
+#define VENDOR_CLASSIFIER_PARAM_LENGTH	1  /* Changed the size to 1 byte since we dnt use it */
+#define  VENDOR_SPECIF_QOS_PARAM	1
+#define VENDOR_PHS_PARAM_LENGTH		10
+#define MBS_CONTENTS_ID_LENGTH		10
+#define GLOBAL_SF_CLASSNAME_LENGTH	6
+
+#define TYPE_OF_SERVICE_LENGTH		3
+#define IP_MASKED_SRC_ADDRESS_LENGTH	32
+#define IP_MASKED_DEST_ADDRESS_LENGTH	32
+#define PROTOCOL_SRC_PORT_RANGE_LENGTH	4
+#define PROTOCOL_DEST_PORT_RANGE_LENGTH	4
+#define ETHERNET_DEST_MAC_ADDR_LENGTH	12
+#define ETHERNET_SRC_MAC_ADDR_LENGTH	12
+#define NUM_ETHERTYPE_BYTES		3
+#define NUM_IPV6_FLOWLABLE_BYTES	3
+
+struct bcm_packet_class_rules {
+	/* 16bit UserPriority Of The Service Flow */
+	B_UINT16 u16UserPriority;
+	/* 16bit VLANID Of The Service Flow */
+	B_UINT16 u16VLANID;
+	/* 16bit Packet Classification RuleIndex Of The Service Flow */
+	B_UINT16 u16PacketClassificationRuleIndex;
+	/* 8bit Classifier Rule Priority Of The Service Flow */
+	B_UINT8 u8ClassifierRulePriority;
+	/* Length of IP TypeOfService field */
+	B_UINT8 u8IPTypeOfServiceLength;
+	/* 3bytes IP TypeOfService */
+	B_UINT8 u8IPTypeOfService[TYPE_OF_SERVICE_LENGTH];
+	/* Protocol used in classification of Service Flow */
+	B_UINT8 u8Protocol;
+	/* Length of IP Masked Source Address */
+	B_UINT8 u8IPMaskedSourceAddressLength;
+	/* IP Masked Source Address used in classification for the Service Flow */
+	B_UINT8 u8IPMaskedSourceAddress[IP_MASKED_SRC_ADDRESS_LENGTH];
+	/* Length of IP Destination Address */
+	B_UINT8 u8IPDestinationAddressLength;
+	/* IP Destination Address used in classification for the Service Flow */
+	B_UINT8 u8IPDestinationAddress[IP_MASKED_DEST_ADDRESS_LENGTH];
+	/* Length of Protocol Source Port Range */
+	B_UINT8 u8ProtocolSourcePortRangeLength;
+	/* Protocol Source Port Range used in the Service Flow */
+	B_UINT8 u8ProtocolSourcePortRange[PROTOCOL_SRC_PORT_RANGE_LENGTH];
+	/* Length of Protocol Dest Port Range */
+	B_UINT8 u8ProtocolDestPortRangeLength;
+	/* Protocol Dest Port Range used in the Service Flow */
+	B_UINT8 u8ProtocolDestPortRange[PROTOCOL_DEST_PORT_RANGE_LENGTH];
+	/* Length of Ethernet Destination MAC Address */
+	B_UINT8 u8EthernetDestMacAddressLength;
+	/* Ethernet Destination MAC Address  used in classification of the Service Flow */
+	B_UINT8 u8EthernetDestMacAddress[ETHERNET_DEST_MAC_ADDR_LENGTH];
+	/* Length of Ethernet Source MAC Address */
+	B_UINT8 u8EthernetSourceMACAddressLength;
+	/* Ethernet Source MAC Address  used in classification of the Service Flow */
+	B_UINT8 u8EthernetSourceMACAddress[ETHERNET_SRC_MAC_ADDR_LENGTH];
+	/* Length of Ethertype */
+	B_UINT8 u8EthertypeLength;
+	/* 3bytes Ethertype Of The Service Flow */
+	B_UINT8 u8Ethertype[NUM_ETHERTYPE_BYTES];
+	/* 8bit Associated PHSI Of The Service Flow */
+	B_UINT8 u8AssociatedPHSI;
+	/* Length of Vendor Specific Classifier Param length Of The Service Flow */
+	B_UINT8 u8VendorSpecificClassifierParamLength;
+	/* Vendor Specific Classifier Param Of The Service Flow */
+	B_UINT8 u8VendorSpecificClassifierParam[VENDOR_CLASSIFIER_PARAM_LENGTH];
+	/* Length Of IPv6 Flow Lable of the Service Flow */
+	B_UINT8 u8IPv6FlowLableLength;
+	/* IPv6 Flow Lable Of The Service Flow */
+	B_UINT8 u8IPv6FlowLable[NUM_IPV6_FLOWLABLE_BYTES];
+	/* Action associated with the classifier rule */
+	B_UINT8 u8ClassifierActionRule;
+	B_UINT16 u16ValidityBitMap;
 };
-typedef struct _stCPacketClassificationRuleSI CCPacketClassificationRuleSI,stCPacketClassificationRuleSI, *pstCPacketClassificationRuleSI;
-
-/// \brief class CPhsRuleSI
-typedef struct _stPhsRuleSI {
-	/**  8bit PHS Index Of The Service Flow*/
-    B_UINT8                         u8PHSI;
-	/**  PHSF Length Of The Service Flow*/
-    B_UINT8                         u8PHSFLength;
-    /** String of bytes containing header information to be suppressed by the sending CS and reconstructed by the receiving CS*/
-    B_UINT8                         u8PHSF[MAX_PHS_LENGTHS];
-	/**  PHSM Length Of The Service Flow*/
-    B_UINT8                         u8PHSMLength;
-	/**  PHS Mask for the SF*/
-    B_UINT8                         u8PHSM[MAX_PHS_LENGTHS];
-	/**  8bit Total number of bytes to be suppressed for the Service Flow*/
-    B_UINT8                         u8PHSS;
-	/**  8bit Indicates whether or not Packet Header contents need to be verified prior to suppression */
-    B_UINT8                         u8PHSV;
-	/**  Vendor Specific PHS param Length Of The Service Flow*/
-    B_UINT8                         u8VendorSpecificPHSParamsLength;
-	/**  Vendor Specific PHS param Of The Service Flow*/
-    B_UINT8                         u8VendorSpecificPHSParams[VENDOR_PHS_PARAM_LENGTH];
-
-	B_UINT8                         u8Padding[2];
-}stPhsRuleSI,*pstPhsRuleSI;
-typedef stPhsRuleSI CPhsRuleSI;
 
-/// \brief structure cConvergenceSLTypes
-struct _stConvergenceSLTypes{
-	/**  8bit Phs Classfier Action Of The Service Flow*/
-    B_UINT8                         u8ClassfierDSCAction;
-	/**  8bit Phs DSC Action Of The Service Flow*/
-    B_UINT8                         u8PhsDSCAction;
-	/**   16bit Padding */
-    B_UINT8                         u8Padding[2];
-    /// \brief class cCPacketClassificationRule
-    stCPacketClassificationRuleSI     cCPacketClassificationRule;
-    /// \brief class CPhsRuleSI
-     struct _stPhsRuleSI		cPhsRule;
+struct bcm_phs_rules {
+	/* 8bit PHS Index Of The Service Flow */
+	B_UINT8 u8PHSI;
+	/* PHSF Length Of The Service Flow */
+	B_UINT8 u8PHSFLength;
+	/* String of bytes containing header information to be suppressed by the sending CS and reconstructed by the receiving CS */
+	B_UINT8 u8PHSF[MAX_PHS_LENGTHS];
+	/* PHSM Length Of The Service Flow */
+	B_UINT8 u8PHSMLength;
+	/* PHS Mask for the SF */
+	B_UINT8 u8PHSM[MAX_PHS_LENGTHS];
+	/* 8bit Total number of bytes to be suppressed for the Service Flow */
+	B_UINT8 u8PHSS;
+	/* 8bit Indicates whether or not Packet Header contents need to be verified prior to suppression */
+	B_UINT8 u8PHSV;
+	/* Vendor Specific PHS param Length Of The Service Flow */
+	B_UINT8 u8VendorSpecificPHSParamsLength;
+	/* Vendor Specific PHS param Of The Service Flow */
+	B_UINT8 u8VendorSpecificPHSParams[VENDOR_PHS_PARAM_LENGTH];
+	B_UINT8 u8Padding[2];
 };
-typedef struct _stConvergenceSLTypes stConvergenceSLTypes,CConvergenceSLTypes, *pstConvergenceSLTypes;
-
-
-/// \brief structure CServiceFlowParamSI
-typedef struct _stServiceFlowParamSI{
-
-     /**  32bitSFID Of The Service Flow*/
-    B_UINT32                        u32SFID;
-
-     /**  32bit Maximum Sustained Traffic Rate of the Service Flow*/
-    B_UINT32                        u32MaxSustainedTrafficRate;
-
-     /**  32bit Maximum Traffic Burst allowed for the Service Flow*/
-    B_UINT32                        u32MaxTrafficBurst;
-
-    /**  32bit Minimum Reserved Traffic Rate of the Service Flow*/
-    B_UINT32                        u32MinReservedTrafficRate;
-
-	/**  32bit Tolerated Jitter of the Service Flow*/
-    	B_UINT32                        u32ToleratedJitter;
-
-   /**  32bit Maximum Latency of the Service Flow*/
-    B_UINT32                        u32MaximumLatency;
-
-	/**  16bitCID Of The Service Flow*/
-    B_UINT16                        u16CID;
-
-     /**  16bit SAID on which the service flow being set up shall be mapped*/
-    B_UINT16                        u16TargetSAID;
-
-	/** 16bit  ARQ window size negotiated*/
-    B_UINT16                        u16ARQWindowSize;
-
-     /**  16bit Total Tx delay incl sending, receiving & processing delays 	*/
-    B_UINT16                        u16ARQRetryTxTimeOut;
-
-	/**  16bit Total Rx delay incl sending, receiving & processing delays 	*/
-    B_UINT16                        u16ARQRetryRxTimeOut;
-
-	/**  16bit ARQ block lifetime	*/
-    B_UINT16                        u16ARQBlockLifeTime;
-
-	/**  16bit ARQ Sync loss timeout*/
-    B_UINT16                        u16ARQSyncLossTimeOut;
-
-	 /**  16bit ARQ Purge timeout */
-    B_UINT16                        u16ARQRxPurgeTimeOut;
-//TODO::Remove this once we move to a new CORR2 driver
-    /// \brief Size of an ARQ block
-    B_UINT16                        u16ARQBlockSize;
-
-//#endif
-	/**  16bit Nominal interval b/w consecutive SDU arrivals at MAC SAP*/
-	B_UINT16                        u16SDUInterArrivalTime;
-
-	/**  16bit Specifies the time base for rate measurement 	*/
-	B_UINT16                        u16TimeBase;
-
-	 /** 16bit Interval b/w Successive Grant oppurtunities*/
-	B_UINT16                        u16UnsolicitedGrantInterval;
-
-	/** 16bit Interval b/w Successive Polling grant oppurtunities*/
-	B_UINT16						u16UnsolicitedPollingInterval;
-
-	 /**   internal var to get the overhead */
-	B_UINT16						u16MacOverhead;
-
-	 /**  MBS contents Identifier*/
-	B_UINT16						u16MBSContentsID[MBS_CONTENTS_ID_LENGTH];
-
-	/**  MBS contents Identifier length*/
-	B_UINT8							u8MBSContentsIDLength;
-
-	/**	 ServiceClassName Length Of The Service Flow*/
-    B_UINT8                         u8ServiceClassNameLength;
-
-	/**  32bytes ServiceClassName Of The Service Flow*/
-    B_UINT8                         u8ServiceClassName[32];
-
-	/**  8bit Indicates whether or not MBS service is requested for this Serivce Flow*/
-	B_UINT8							u8MBSService;
-
-    /**  8bit QOS Parameter Set specifies proper application of QoS paramters to Provisioned, Admitted and Active sets*/
-    B_UINT8                         u8QosParamSet;
-
-   /**  8bit Traffic Priority Of the Service Flow */
-    B_UINT8                         u8TrafficPriority;
-
-   /**  8bit Uplink Grant Scheduling Type of The Service Flow */
-    B_UINT8                         u8ServiceFlowSchedulingType;
-
-  /**  8bit Request transmission Policy of the Service Flow*/
-    B_UINT8							u8RequesttransmissionPolicy;
-
-	/**  8bit Specifies whether SDUs for this Service flow are of FixedLength or Variable length */
-    B_UINT8                         u8FixedLengthVSVariableLengthSDUIndicator;
-
-	/**  8bit Length of the SDU for a fixed length SDU service flow*/
-	B_UINT8                         u8SDUSize;
 
-	 /** 8bit Indicates whether or not ARQ is requested for this connection*/
-       B_UINT8                         u8ARQEnable;
-
-	/**<  8bit Indicates whether or not data has tobe delivered in order to higher layer*/
-       B_UINT8                         u8ARQDeliverInOrder;
-
-	/**  8bit Receiver ARQ ACK processing time */
-	B_UINT8                         u8RxARQAckProcessingTime;
-
-	/**  8bit Convergence Sublayer Specification Of The Service Flow*/
-       B_UINT8                         u8CSSpecification;
-
-	 /**  8 bit Type of data delivery service*/
-	B_UINT8                         u8TypeOfDataDeliveryService;
-
-	/** 8bit Specifies whether a service flow may generate Paging	*/
-	B_UINT8                         u8PagingPreference;
-
-	/**  8bit Indicates the MBS Zone through which the connection or virtual connection is valid	*/
-       B_UINT8                         u8MBSZoneIdentifierassignment;
-
-       /**  8bit Specifies whether traffic on SF should generate MOB_TRF_IND to MS in sleep mode*/
-	B_UINT8                         u8TrafficIndicationPreference;
-
-	/** 8bit Speciifes the length of predefined Global QoS parameter set encoding for this SF	*/
-	B_UINT8                         u8GlobalServicesClassNameLength;
-
-	 /**  6 byte Speciifes the predefined Global QoS parameter set encoding for this SF	*/
-	B_UINT8                         u8GlobalServicesClassName[GLOBAL_SF_CLASSNAME_LENGTH];
-
-	 /**  8bit Indicates whether or not SN feedback is enabled for the conn	*/
-	B_UINT8                         u8SNFeedbackEnabled;
-
-	 /**  Indicates the size of the Fragment Sequence Number for the connection	*/
-	B_UINT8                         u8FSNSize;
-
-	/** 8bit Number of CIDs in active BS list 	*/
-	B_UINT8							u8CIDAllocation4activeBSsLength;
-
-	/**  CIDs of BS in the active list	*/
-	B_UINT8							u8CIDAllocation4activeBSs[MAX_NUM_ACTIVE_BS];
-
-	 /**  Specifies if PDU extended subheader should be applied on every PDU on this conn*/
-	B_UINT8                         u8PDUSNExtendedSubheader4HarqReordering;
-
-	 /**  8bit Specifies whether the connection uses HARQ or not	*/
-	B_UINT8                         u8HARQServiceFlows;
-
-	/**  Specifies the length of Authorization token*/
-	B_UINT8							u8AuthTokenLength;
-
-	/**  Specifies the Authorization token*/
-	B_UINT8							u8AuthToken[AUTH_TOKEN_LENGTH];
-
-	/**  specifes Number of HARQ channels used to carry data length*/
-	B_UINT8							u8HarqChannelMappingLength;
-
-	 /**  specifes HARQ channels used to carry data*/
-	B_UINT8							u8HARQChannelMapping[NUM_HARQ_CHANNELS];
-
-	/**  8bit Length of Vendor Specific QoS Params */
-    B_UINT8                         u8VendorSpecificQoSParamLength;
-
-	/** 1byte  Vendor Specific QoS Param Of The Service Flow*/
-    B_UINT8                          u8VendorSpecificQoSParam[VENDOR_SPECIF_QOS_PARAM];
-
-	// indicates total classifiers in the SF
-	B_UINT8                         u8TotalClassifiers;  /**< Total number of valid classifiers*/
-	B_UINT8							bValid;	/**<  Validity flag */
-	B_UINT8				u8Padding;	 /**<  Padding byte*/
-
-/**
-Structure for Convergence SubLayer Types with a maximum of 4 classifiers
-*/
-	stConvergenceSLTypes		cConvergenceSLTypes[MAX_CLASSIFIERS_IN_SF];
-
-} stServiceFlowParamSI, *pstServiceFlowParamSI;
-typedef stServiceFlowParamSI CServiceFlowParamSI;
-
-/**
-structure stLocalSFAddRequest
-*/
-typedef struct _stLocalSFAddRequest{
-
-	B_UINT8                         u8Type;	/**<  Type*/
-	B_UINT8      eConnectionDir;		/**<  Connection direction*/
-	/// \brief 16 bit TID
-	B_UINT16                        u16TID;	/**<  16bit TID*/
-	/// \brief 16bitCID
-    	B_UINT16                        u16CID;	/**<  16bit CID*/
-	/// \brief 16bitVCID
-	B_UINT16                        u16VCID;	/**<  16bit VCID*/
-    /// \brief structure ParameterSet
-
-	stServiceFlowParamSI	*psfParameterSet;	/**<  structure ParameterSet*/
-
-}stLocalSFAddRequest, *pstLocalSFAddRequest;
-
-
-/**
-structure stLocalSFAddIndication
-*/
-typedef struct _stLocalSFAddIndication{
-
-	B_UINT8                         u8Type;	/**<  Type*/
-	B_UINT8      eConnectionDir;	/**<  Connection Direction*/
-	/// \brief 16 bit TID
-	B_UINT16                         u16TID;	/**<  TID*/
-    /// \brief 16bitCID
-    B_UINT16                        u16CID;		/**<  16bitCID*/
-    /// \brief 16bitVCID
-    B_UINT16                        u16VCID;	 /**<  16bitVCID*/
-
-
-    /// \brief structure AuthorizedSet
-    /// \brief structure AuthorizedSet
-    stServiceFlowParamSI              *psfAuthorizedSet;	/**<  AuthorizedSet of type stServiceFlowParamSI*/
-    /// \brief structure AdmittedSet
-    stServiceFlowParamSI              *psfAdmittedSet;	/**<  AdmittedSet of type stServiceFlowParamSI*/
-    /// \brief structure ActiveSet
-    stServiceFlowParamSI              *psfActiveSet;	/**<  sfActiveSet of type stServiceFlowParamSI*/
-	B_UINT8				   u8CC;	/**<  Confirmation Code*/
-	B_UINT8				   u8Padd;		/**<  8-bit Padding */
-
-    B_UINT16               u16Padd;	/**< 16 bit Padding */
-
-}stLocalSFAddIndication;
+struct bcm_convergence_types {
+	/* 8bit Phs Classfier Action Of The Service Flow */
+	B_UINT8 u8ClassfierDSCAction;
+	/* 8bit Phs DSC Action Of The Service Flow */
+	B_UINT8 u8PhsDSCAction;
+	/* 16bit Padding */
+	B_UINT8 u8Padding[2];
+	/* Packet classification rules structure */
+	struct bcm_packet_class_rules cCPacketClassificationRule;
+	/* Payload header suppression rules structure */
+	struct bcm_phs_rules cPhsRule;
+};
 
+struct bcm_connect_mgr_params {
+	/* 32bitSFID Of The Service Flow */
+	B_UINT32 u32SFID;
+	/* 32bit Maximum Sustained Traffic Rate of the Service Flow */
+	B_UINT32 u32MaxSustainedTrafficRate;
+	/* 32bit Maximum Traffic Burst allowed for the Service Flow */
+	B_UINT32 u32MaxTrafficBurst;
+	/* 32bit Minimum Reserved Traffic Rate of the Service Flow */
+	B_UINT32 u32MinReservedTrafficRate;
+	/* 32bit Tolerated Jitter of the Service Flow */
+	B_UINT32 u32ToleratedJitter;
+	/* 32bit Maximum Latency of the Service Flow */
+	B_UINT32 u32MaximumLatency;
+	/* 16bitCID Of The Service Flow */
+	B_UINT16 u16CID;
+	/* 16bit SAID on which the service flow being set up shall be mapped */
+	B_UINT16 u16TargetSAID;
+	/* 16bit  ARQ window size negotiated */
+	B_UINT16 u16ARQWindowSize;
+	/* 16bit Total Tx delay incl sending, receiving & processing delays */
+	B_UINT16 u16ARQRetryTxTimeOut;
+	/* 16bit Total Rx delay incl sending, receiving & processing delays */
+	B_UINT16 u16ARQRetryRxTimeOut;
+	/* 16bit ARQ block lifetime */
+	B_UINT16 u16ARQBlockLifeTime;
+	/* 16bit ARQ Sync loss timeout */
+	B_UINT16 u16ARQSyncLossTimeOut;
+	/* 16bit ARQ Purge timeout */
+	B_UINT16 u16ARQRxPurgeTimeOut;
+	/* TODO::Remove this once we move to a new CORR2 driver
+	 * brief Size of an ARQ block
+	 */
+	B_UINT16 u16ARQBlockSize;
+	/* #endif */
+	/* 16bit Nominal interval b/w consecutive SDU arrivals at MAC SAP */
+	B_UINT16 u16SDUInterArrivalTime;
+	/* 16bit Specifies the time base for rate measurement */
+	B_UINT16 u16TimeBase;
+	/* 16bit Interval b/w Successive Grant oppurtunities */
+	B_UINT16 u16UnsolicitedGrantInterval;
+	/* 16bit Interval b/w Successive Polling grant oppurtunities */
+	B_UINT16 u16UnsolicitedPollingInterval;
+	/* internal var to get the overhead */
+	B_UINT16 u16MacOverhead;
+	/* MBS contents Identifier */
+	B_UINT16 u16MBSContentsID[MBS_CONTENTS_ID_LENGTH];
+	/* MBS contents Identifier length */
+	B_UINT8 u8MBSContentsIDLength;
+	/* ServiceClassName Length Of The Service Flow */
+	B_UINT8 u8ServiceClassNameLength;
+	/* 32bytes ServiceClassName Of The Service Flow */
+	B_UINT8 u8ServiceClassName[32];
+	/* 8bit Indicates whether or not MBS service is requested for this Serivce Flow */
+	B_UINT8 u8MBSService;
+	/* 8bit QOS Parameter Set specifies proper application of QoS parameters to Provisioned, Admitted and Active sets */
+	B_UINT8 u8QosParamSet;
+	/* 8bit Traffic Priority Of the Service Flow */
+	B_UINT8 u8TrafficPriority;
+	/* 8bit Uplink Grant Scheduling Type of The Service Flow */
+	B_UINT8 u8ServiceFlowSchedulingType;
+	/* 8bit Request transmission Policy of the Service Flow */
+	B_UINT8 u8RequesttransmissionPolicy;
+	/* 8bit Specifies whether SDUs for this Service flow are of FixedLength or Variable length */
+	B_UINT8 u8FixedLengthVSVariableLengthSDUIndicator;
+	/* 8bit Length of the SDU for a fixed length SDU service flow */
+	B_UINT8 u8SDUSize;
+	/* 8bit Indicates whether or not ARQ is requested for this connection */
+	B_UINT8 u8ARQEnable;
+	/* < 8bit Indicates whether or not data has tobe delivered in order to higher layer */
+	B_UINT8 u8ARQDeliverInOrder;
+	/* 8bit Receiver ARQ ACK processing time */
+	B_UINT8 u8RxARQAckProcessingTime;
+	/* 8bit Convergence Sublayer Specification Of The Service Flow */
+	B_UINT8 u8CSSpecification;
+	/* 8 bit Type of data delivery service */
+	B_UINT8 u8TypeOfDataDeliveryService;
+	/* 8bit Specifies whether a service flow may generate Paging */
+	B_UINT8 u8PagingPreference;
+	/* 8bit Indicates the MBS Zone through which the connection or virtual connection is valid */
+	B_UINT8 u8MBSZoneIdentifierassignment;
+	/* 8bit Specifies whether traffic on SF should generate MOB_TRF_IND to MS in sleep mode */
+	B_UINT8 u8TrafficIndicationPreference;
+	/* 8bit Speciifes the length of predefined Global QoS parameter set encoding for this SF */
+	B_UINT8 u8GlobalServicesClassNameLength;
+	/* 6 byte Speciifes the predefined Global QoS parameter set encoding for this SF */
+	B_UINT8 u8GlobalServicesClassName[GLOBAL_SF_CLASSNAME_LENGTH];
+	/* 8bit Indicates whether or not SN feedback is enabled for the conn */
+	B_UINT8 u8SNFeedbackEnabled;
+	/* Indicates the size of the Fragment Sequence Number for the connection */
+	B_UINT8 u8FSNSize;
+	/* 8bit Number of CIDs in active BS list */
+	B_UINT8 u8CIDAllocation4activeBSsLength;
+	/* CIDs of BS in the active list */
+	B_UINT8 u8CIDAllocation4activeBSs[MAX_NUM_ACTIVE_BS];
+	/* Specifies if PDU extended subheader should be applied on every PDU on this conn */
+	B_UINT8 u8PDUSNExtendedSubheader4HarqReordering;
+	/* 8bit Specifies whether the connection uses HARQ or not */
+	B_UINT8 u8HARQServiceFlows;
+	/* Specifies the length of Authorization token */
+	B_UINT8 u8AuthTokenLength;
+	/* Specifies the Authorization token */
+	B_UINT8 u8AuthToken[AUTH_TOKEN_LENGTH];
+	/* specifes Number of HARQ channels used to carry data length */
+	B_UINT8 u8HarqChannelMappingLength;
+	/* specifes HARQ channels used to carry data */
+	B_UINT8 u8HARQChannelMapping[NUM_HARQ_CHANNELS];
+	/* 8bit Length of Vendor Specific QoS Params */
+	B_UINT8 u8VendorSpecificQoSParamLength;
+	/* 1byte  Vendor Specific QoS Param Of The Service Flow */
+	B_UINT8 u8VendorSpecificQoSParam[VENDOR_SPECIF_QOS_PARAM];
+	/* indicates total classifiers in the SF */
+	B_UINT8 u8TotalClassifiers;  /* < Total number of valid classifiers */
+	B_UINT8 bValid;	/* < Validity flag */
+	B_UINT8 u8Padding;	 /* < Padding byte */
+	/*
+	 * Structure for Convergence SubLayer Types with a maximum of 4 classifiers
+	 */
+	struct bcm_convergence_types cConvergenceSLTypes[MAX_CLASSIFIERS_IN_SF];
+};
 
-typedef struct _stLocalSFAddIndication *pstLocalSFAddIndication;
-/**
-structure stLocalSFChangeRequest is same as structure stLocalSFAddIndication
-*/
-typedef struct _stLocalSFAddIndication stLocalSFChangeRequest, *pstLocalSFChangeRequest;
-/**
-structure stLocalSFChangeIndication is same as structure stLocalSFAddIndication
-*/
-typedef struct _stLocalSFAddIndication stLocalSFChangeIndication, *pstLocalSFChangeIndication;
+struct bcm_add_request {
+	B_UINT8 u8Type;	/* < Type */
+	B_UINT8 eConnectionDir; /* < Connection direction */
+	/* brief 16 bit TID */
+	B_UINT16 u16TID; /* < 16bit TID */
+	/* brief 16bitCID */
+	B_UINT16 u16CID; /* < 16bit CID */
+	/* brief 16bitVCID */
+	B_UINT16 u16VCID; /* < 16bit VCID */
+	struct bcm_connect_mgr_params *psfParameterSet; /* < connection manager parameters */
+};
 
-/**
-structure stLocalSFDeleteRequest
-*/
-typedef struct _stLocalSFDeleteRequest{
-	B_UINT8                         u8Type;	 /**< Type*/
-	B_UINT8                         u8Padding;	 /**<  Padding byte*/
-	B_UINT16			u16TID;		 /**<  TID*/
-    /// \brief 32bitSFID
-    B_UINT32                        u32SFID;	 /**<  SFID*/
-}stLocalSFDeleteRequest, *pstLocalSFDeleteRequest;
+struct bcm_add_indication {
+	B_UINT8 u8Type;	/* < Type */
+	B_UINT8 eConnectionDir;	/* < Connection Direction */
+	/* brief 16 bit TID */
+	B_UINT16 u16TID; /* < TID */
+	/* brief 16bitCID */
+	B_UINT16 u16CID; /* < 16bitCID */
+	/* brief 16bitVCID */
+	B_UINT16 u16VCID; /* < 16bitVCID */
+	struct bcm_connect_mgr_params *psfAuthorizedSet; /* Authorized set of connection manager parameters */
+	struct bcm_connect_mgr_params *psfAdmittedSet; /* Admitted set of connection manager parameters */
+	struct bcm_connect_mgr_params *psfActiveSet; /* Activeset of connection manager parameters */
+	B_UINT8 u8CC; /* <Confirmation Code */
+	B_UINT8 u8Padd; /* < 8-bit Padding */
+	B_UINT16 u16Padd; /* < 16 bit Padding */
+};
 
-/**
-structure stLocalSFDeleteIndication
-*/
-typedef struct stLocalSFDeleteIndication{
-	B_UINT8                         u8Type;	/**< Type */
-	B_UINT8                         u8Padding;	/**< Padding  */
-	B_UINT16			u16TID;			/**< TID */
-       /// \brief 16bitCID
-    B_UINT16                        u16CID;			/**< CID */
-    /// \brief 16bitVCID
-    B_UINT16                        u16VCID;		/**< VCID */
-    /// \brief 32bitSFID
-    B_UINT32                        u32SFID; 		/**< SFID */
-	/// \brief 8bit Confirmation code
-	B_UINT8                         u8ConfirmationCode;	/**< Confirmation code */
-	B_UINT8                         u8Padding1[3];		/**< 3 byte Padding  */
-}stLocalSFDeleteIndication;
+struct bcm_del_request {
+	B_UINT8 u8Type; /* < Type */
+	B_UINT8 u8Padding; /* < Padding byte */
+	B_UINT16 u16TID; /* < TID */
+	/* brief 32bitSFID */
+	B_UINT32 u32SFID; /* < SFID */
+};
 
-typedef struct _stIM_SFHostNotify
-{
-	B_UINT32 	SFID;      //SFID of the service flow
-	B_UINT16 	newCID;   //the new/changed CID
-	B_UINT16 	VCID;             //Get new Vcid if the flow has been made active in CID update TLV, but was inactive earlier or the orig vcid
-	B_UINT8  	RetainSF;        //Indication to Host if the SF is to be retained or deleted; if TRUE-retain else delete
-	B_UINT8 	QoSParamSet; //QoS paramset of the retained SF
-	B_UINT16 	u16reserved;  //For byte alignment
+struct bcm_del_indication {
+	B_UINT8 u8Type;	/* < Type */
+	B_UINT8 u8Padding; /* < Padding */
+	B_UINT16 u16TID; /* < TID */
+	/* brief 16bitCID */
+	B_UINT16 u16CID; /* < CID */
+	/* brief 16bitVCID */
+	B_UINT16 u16VCID; /* < VCID */
+	/* brief 32bitSFID */
+	B_UINT32 u32SFID; /* < SFID */
+	/* brief 8bit Confirmation code */
+	B_UINT8 u8ConfirmationCode; /* < Confirmation code */
+	B_UINT8 u8Padding1[3]; /* < 3 byte Padding */
+};
 
-} stIM_SFHostNotify;
+struct bcm_stim_sfhostnotify {
+	B_UINT32 SFID; /* SFID of the service flow */
+	B_UINT16 newCID; /* the new/changed CID */
+	B_UINT16 VCID; /* Get new Vcid if the flow has been made active in CID update TLV, but was inactive earlier or the orig vcid */
+	B_UINT8 RetainSF; /* Indication to Host if the SF is to be retained or deleted; if TRUE-retain else delete */
+	B_UINT8 QoSParamSet; /* QoS paramset of the retained SF */
+	B_UINT16 u16reserved; /* For byte alignment */
+};
 
 #endif
diff --git a/drivers/staging/bcm/hostmibs.c b/drivers/staging/bcm/hostmibs.c
index 08d13a4dfd7..10361bb3505 100644
--- a/drivers/staging/bcm/hostmibs.c
+++ b/drivers/staging/bcm/hostmibs.c
@@ -101,7 +101,7 @@ VOID GetDroppedAppCntrlPktMibs(S_MIBS_HOST_STATS_MIBS *pstHostMibs, struct bcm_t
 	       sizeof(S_MIBS_DROPPED_APP_CNTRL_MESSAGES));
 }
 
-VOID CopyMIBSExtendedSFParameters(struct bcm_mini_adapter *Adapter, CServiceFlowParamSI *psfLocalSet, UINT uiSearchRuleIndex)
+VOID CopyMIBSExtendedSFParameters(struct bcm_mini_adapter *Adapter, struct bcm_connect_mgr_params *psfLocalSet, UINT uiSearchRuleIndex)
 {
 	S_MIBS_EXTSERVICEFLOW_PARAMETERS *t = &Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable;
 
diff --git a/drivers/staging/bcm/nvm.c b/drivers/staging/bcm/nvm.c
index b179dbab93b..b034eb5fa6b 100644
--- a/drivers/staging/bcm/nvm.c
+++ b/drivers/staging/bcm/nvm.c
@@ -577,7 +577,7 @@ static int FlashSectorErase(struct bcm_mini_adapter *Adapter,
 			 * the sector erase cycle is 500 ms to 40000 msec. hence sleeping 10 ms
 			 * won't hamper performance in any case.
 			 */
-			udelay(10000);
+			mdelay(10);
 		} while ((uiStatus & 0x1) && (iRetries < 400));
 
 		if (uiStatus & 0x1) {
@@ -3932,7 +3932,7 @@ int validateFlash2xReadWrite(struct bcm_mini_adapter *Adapter, PFLASH2X_READWRIT
 				BcmGetSectionValStartOffset(Adapter, ISO_IMAGE2_PART3);
 		}
 
-		/* since this uiSectEndoffset is the size of iso Image. hence for calculating the vitual endoffset
+		/* since this uiSectEndoffset is the size of iso Image. hence for calculating the virtual endoffset
 		 * it should be added in startoffset. so that check done in last of this function can be valued.
 		 */
 		uiSectEndOffset = uiSectStartOffset + uiSectEndOffset;
diff --git a/drivers/staging/bcm/target_params.h b/drivers/staging/bcm/target_params.h
index 14876388b87..ad7ec005493 100644
--- a/drivers/staging/bcm/target_params.h
+++ b/drivers/staging/bcm/target_params.h
@@ -32,7 +32,7 @@ typedef struct _TARGET_PARAMS
       B_UINT32 m_u32PowerSavingModesEnable; //bit 1: 1 Idlemode enable; bit2: 1 Sleepmode Enable
 	  /* PowerSaving Mode Options:
 	     bit 0 = 1: CPE mode - to keep pcmcia if alive;
-	     bit 1 = 1: CINR reporing in Idlemode Msg
+	     bit 1 = 1: CINR reporting in Idlemode Msg
 	     bit 2 = 1: Default PSC Enable in sleepmode*/
       B_UINT32 m_u32PowerSavingModeOptions;
 
diff --git a/drivers/staging/ccg/Kconfig b/drivers/staging/ccg/Kconfig
index 1f00d701da2..8997a8c757a 100644
--- a/drivers/staging/ccg/Kconfig
+++ b/drivers/staging/ccg/Kconfig
@@ -2,7 +2,7 @@ if USB_GADGET
 
 config USB_G_CCG
 	tristate "Configurable Composite Gadget (STAGING)"
-	depends on STAGING && BLOCK && !USB_ZERO && !USB_ZERO_HNPTEST && !USB_AUDIO && !GADGET_UAC1 && !USB_ETH && !USB_ETH_RNDIS && !USB_ETH_EEM && !USB_G_NCM && !USB_GADGETFS && !USB_FUNCTIONFS && !USB_FUNCTIONFS_ETH && !USB_FUNCTIONFS_RNDIS && !USB_FUNCTIONFS_GENERIC && !USB_FILE_STORAGE && !USB_FILE_STORAGE_TEST && !USB_MASS_STORAGE && !USB_G_SERIAL && !USB_MIDI_GADGET && !USB_G_PRINTER && !USB_CDC_COMPOSITE && !USB_G_NOKIA && !USB_G_ACM_MS && !USB_G_MULTI && !USB_G_MULTI_RNDIS && !USB_G_MULTI_CDC && !USB_G_HID && !USB_G_DBGP && !USB_G_WEBCAM
+	depends on STAGING && BLOCK && NET && !USB_ZERO && !USB_ZERO_HNPTEST && !USB_AUDIO && !GADGET_UAC1 && !USB_ETH && !USB_ETH_RNDIS && !USB_ETH_EEM && !USB_G_NCM && !USB_GADGETFS && !USB_FUNCTIONFS && !USB_FUNCTIONFS_ETH && !USB_FUNCTIONFS_RNDIS && !USB_FUNCTIONFS_GENERIC && !USB_FILE_STORAGE && !USB_FILE_STORAGE_TEST && !USB_MASS_STORAGE && !USB_G_SERIAL && !USB_MIDI_GADGET && !USB_G_PRINTER && !USB_CDC_COMPOSITE && !USB_G_NOKIA && !USB_G_ACM_MS && !USB_G_MULTI && !USB_G_MULTI_RNDIS && !USB_G_MULTI_CDC && !USB_G_HID && !USB_G_DBGP && !USB_G_WEBCAM
 	help
 	  The Configurable Composite Gadget supports multiple USB
 	  functions: acm, mass storage, rndis and FunctionFS.
@@ -17,4 +17,9 @@ config USB_G_CCG
 	  Configurable Composite Gadget can be compiled "M" only
 	  or not at all.
 
+	  BIG FAT NOTE: DON'T RELY ON THIS USERINTERFACE HERE! AS PART
+	  OF THE REWORK DONE HERE WILL BE A NEW USER INTERFACE WITHOUT ANY
+	  COMPATIBILITY TO THIS SYSFS INTERFACE HERE. BE AWARE OF THIS
+	  BEFORE SELECTING THIS.
+
 endif # USB_GADGET
diff --git a/drivers/staging/ccg/Makefile b/drivers/staging/ccg/Makefile
index 693da637a6d..814fa9de5f5 100644
--- a/drivers/staging/ccg/Makefile
+++ b/drivers/staging/ccg/Makefile
@@ -1,4 +1,2 @@
 g_ccg-y				:= ccg.o
-ccflags-y			+= -Idrivers/usb/gadget
-
 obj-$(CONFIG_USB_G_CCG)		+= g_ccg.o
diff --git a/drivers/staging/ccg/ccg.c b/drivers/staging/ccg/ccg.c
index 6a7aab8d9bf..93e1e2ffca0 100644
--- a/drivers/staging/ccg/ccg.c
+++ b/drivers/staging/ccg/ccg.c
@@ -32,7 +32,7 @@
 #include <linux/platform_device.h>
 
 #include <linux/usb/ch9.h>
-#include <linux/usb/composite.h>
+#include "composite.h"
 #include <linux/usb/gadget.h>
 
 #include "gadget_chips.h"
@@ -44,19 +44,19 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "../../usb/gadget/usbstring.c"
-#include "../../usb/gadget/config.c"
-#include "../../usb/gadget/epautoconf.c"
-#include "../../usb/gadget/composite.c"
-
-#include "../../usb/gadget/f_mass_storage.c"
-#include "../../usb/gadget/u_serial.c"
-#include "../../usb/gadget/f_acm.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+#include "composite.c"
+
+#include "f_mass_storage.c"
+#include "u_serial.c"
+#include "f_acm.c"
 #define USB_ETH_RNDIS y
-#include "../../usb/gadget/f_rndis.c"
-#include "../../usb/gadget/rndis.c"
-#include "../../usb/gadget/u_ether.c"
-#include "../../usb/gadget/f_fs.c"
+#include "f_rndis.c"
+#include "rndis.c"
+#include "u_ether.c"
+#include "f_fs.c"
 
 MODULE_AUTHOR("Mike Lockwood, Andrzej Pietrasiewicz");
 MODULE_DESCRIPTION("Configurable Composite USB Gadget");
@@ -728,7 +728,7 @@ static int mass_storage_function_init(struct ccg_usb_function *f,
 	struct fsg_common *common;
 	int err;
 
-	memset(&fsg, 0, sizeof fsg);
+	memset(&fsg, 0, sizeof(fsg));
 	fsg.nluns = 1;
 	fsg.luns[0].removable = 1;
 	fsg.vendor_name = iManufacturer;
@@ -1101,13 +1101,7 @@ static struct device_attribute *ccg_usb_attributes[] = {
 static int ccg_bind_config(struct usb_configuration *c)
 {
 	struct ccg_dev *dev = _ccg_dev;
-	int ret = 0;
-
-	ret = ccg_bind_enabled_functions(dev, c);
-	if (ret)
-		return ret;
-
-	return 0;
+	return ccg_bind_enabled_functions(dev, c);
 }
 
 static void ccg_unbind_config(struct usb_configuration *c)
@@ -1162,6 +1156,7 @@ static int ccg_usb_unbind(struct usb_composite_dev *cdev)
 static struct usb_composite_driver ccg_usb_driver = {
 	.name		= "configurable_usb",
 	.dev		= &device_desc,
+	.bind		= ccg_bind,
 	.unbind		= ccg_usb_unbind,
 	.needs_serial	= true,
 	.iManufacturer	= "Linux Foundation",
@@ -1254,8 +1249,10 @@ static int __init init(void)
 		return PTR_ERR(ccg_class);
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
+	if (!dev) {
+		class_destroy(ccg_class);
 		return -ENOMEM;
+	}
 
 	dev->functions = supported_functions;
 	INIT_LIST_HEAD(&dev->enabled_functions);
@@ -1275,7 +1272,7 @@ static int __init init(void)
 	composite_driver.setup = ccg_setup;
 	composite_driver.disconnect = ccg_disconnect;
 
-	err = usb_composite_probe(&ccg_usb_driver, ccg_bind);
+	err = usb_composite_probe(&ccg_usb_driver);
 	if (err) {
 		class_destroy(ccg_class);
 		kfree(dev);
diff --git a/drivers/staging/ccg/composite.c b/drivers/staging/ccg/composite.c
new file mode 100644
index 00000000000..228b4574f22
--- /dev/null
+++ b/drivers/staging/ccg/composite.c
@@ -0,0 +1,1688 @@
+/*
+ * composite.c - infrastructure for Composite USB Gadgets
+ *
+ * Copyright (C) 2006-2008 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/* #define VERBOSE_DEBUG */
+
+#include <linux/kallsyms.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/utsname.h>
+
+#include <linux/usb/composite.h>
+#include <asm/unaligned.h>
+
+/*
+ * The code in this file is utility code, used to build a gadget driver
+ * from one or more "function" drivers, one or more "configuration"
+ * objects, and a "usb_composite_driver" by gluing them together along
+ * with the relevant device-wide data.
+ */
+
+/* big enough to hold our biggest descriptor */
+#define USB_BUFSIZ	1024
+
+static struct usb_composite_driver *composite;
+
+/* Some systems will need runtime overrides for the  product identifiers
+ * published in the device descriptor, either numbers or strings or both.
+ * String parameters are in UTF-8 (superset of ASCII's 7 bit characters).
+ */
+
+static ushort idVendor;
+module_param(idVendor, ushort, 0644);
+MODULE_PARM_DESC(idVendor, "USB Vendor ID");
+
+static ushort idProduct;
+module_param(idProduct, ushort, 0644);
+MODULE_PARM_DESC(idProduct, "USB Product ID");
+
+static ushort bcdDevice;
+module_param(bcdDevice, ushort, 0644);
+MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)");
+
+static char *iManufacturer;
+module_param(iManufacturer, charp, 0644);
+MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string");
+
+static char *iProduct;
+module_param(iProduct, charp, 0644);
+MODULE_PARM_DESC(iProduct, "USB Product string");
+
+static char *iSerialNumber;
+module_param(iSerialNumber, charp, 0644);
+MODULE_PARM_DESC(iSerialNumber, "SerialNumber string");
+
+static char composite_manufacturer[50];
+
+/*-------------------------------------------------------------------------*/
+/**
+ * next_ep_desc() - advance to the next EP descriptor
+ * @t: currect pointer within descriptor array
+ *
+ * Return: next EP descriptor or NULL
+ *
+ * Iterate over @t until either EP descriptor found or
+ * NULL (that indicates end of list) encountered
+ */
+static struct usb_descriptor_header**
+next_ep_desc(struct usb_descriptor_header **t)
+{
+	for (; *t; t++) {
+		if ((*t)->bDescriptorType == USB_DT_ENDPOINT)
+			return t;
+	}
+	return NULL;
+}
+
+/*
+ * for_each_ep_desc()- iterate over endpoint descriptors in the
+ *		descriptors list
+ * @start:	pointer within descriptor array.
+ * @ep_desc:	endpoint descriptor to use as the loop cursor
+ */
+#define for_each_ep_desc(start, ep_desc) \
+	for (ep_desc = next_ep_desc(start); \
+	      ep_desc; ep_desc = next_ep_desc(ep_desc+1))
+
+/**
+ * config_ep_by_speed() - configures the given endpoint
+ * according to gadget speed.
+ * @g: pointer to the gadget
+ * @f: usb function
+ * @_ep: the endpoint to configure
+ *
+ * Return: error code, 0 on success
+ *
+ * This function chooses the right descriptors for a given
+ * endpoint according to gadget speed and saves it in the
+ * endpoint desc field. If the endpoint already has a descriptor
+ * assigned to it - overwrites it with currently corresponding
+ * descriptor. The endpoint maxpacket field is updated according
+ * to the chosen descriptor.
+ * Note: the supplied function should hold all the descriptors
+ * for supported speeds
+ */
+int config_ep_by_speed(struct usb_gadget *g,
+			struct usb_function *f,
+			struct usb_ep *_ep)
+{
+	struct usb_composite_dev	*cdev = get_gadget_data(g);
+	struct usb_endpoint_descriptor *chosen_desc = NULL;
+	struct usb_descriptor_header **speed_desc = NULL;
+
+	struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
+	int want_comp_desc = 0;
+
+	struct usb_descriptor_header **d_spd; /* cursor for speed desc */
+
+	if (!g || !f || !_ep)
+		return -EIO;
+
+	/* select desired speed */
+	switch (g->speed) {
+	case USB_SPEED_SUPER:
+		if (gadget_is_superspeed(g)) {
+			speed_desc = f->ss_descriptors;
+			want_comp_desc = 1;
+			break;
+		}
+		/* else: Fall trough */
+	case USB_SPEED_HIGH:
+		if (gadget_is_dualspeed(g)) {
+			speed_desc = f->hs_descriptors;
+			break;
+		}
+		/* else: fall through */
+	default:
+		speed_desc = f->descriptors;
+	}
+	/* find descriptors */
+	for_each_ep_desc(speed_desc, d_spd) {
+		chosen_desc = (struct usb_endpoint_descriptor *)*d_spd;
+		if (chosen_desc->bEndpointAddress == _ep->address)
+			goto ep_found;
+	}
+	return -EIO;
+
+ep_found:
+	/* commit results */
+	_ep->maxpacket = usb_endpoint_maxp(chosen_desc);
+	_ep->desc = chosen_desc;
+	_ep->comp_desc = NULL;
+	_ep->maxburst = 0;
+	_ep->mult = 0;
+	if (!want_comp_desc)
+		return 0;
+
+	/*
+	 * Companion descriptor should follow EP descriptor
+	 * USB 3.0 spec, #9.6.7
+	 */
+	comp_desc = (struct usb_ss_ep_comp_descriptor *)*(++d_spd);
+	if (!comp_desc ||
+	    (comp_desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP))
+		return -EIO;
+	_ep->comp_desc = comp_desc;
+	if (g->speed == USB_SPEED_SUPER) {
+		switch (usb_endpoint_type(_ep->desc)) {
+		case USB_ENDPOINT_XFER_ISOC:
+			/* mult: bits 1:0 of bmAttributes */
+			_ep->mult = comp_desc->bmAttributes & 0x3;
+		case USB_ENDPOINT_XFER_BULK:
+		case USB_ENDPOINT_XFER_INT:
+			_ep->maxburst = comp_desc->bMaxBurst + 1;
+			break;
+		default:
+			if (comp_desc->bMaxBurst != 0)
+				ERROR(cdev, "ep0 bMaxBurst must be 0\n");
+			_ep->maxburst = 1;
+			break;
+		}
+	}
+	return 0;
+}
+
+/**
+ * usb_add_function() - add a function to a configuration
+ * @config: the configuration
+ * @function: the function being added
+ * Context: single threaded during gadget setup
+ *
+ * After initialization, each configuration must have one or more
+ * functions added to it.  Adding a function involves calling its @bind()
+ * method to allocate resources such as interface and string identifiers
+ * and endpoints.
+ *
+ * This function returns the value of the function's bind(), which is
+ * zero for success else a negative errno value.
+ */
+int usb_add_function(struct usb_configuration *config,
+		struct usb_function *function)
+{
+	int	value = -EINVAL;
+
+	DBG(config->cdev, "adding '%s'/%p to config '%s'/%p\n",
+			function->name, function,
+			config->label, config);
+
+	if (!function->set_alt || !function->disable)
+		goto done;
+
+	function->config = config;
+	list_add_tail(&function->list, &config->functions);
+
+	/* REVISIT *require* function->bind? */
+	if (function->bind) {
+		value = function->bind(config, function);
+		if (value < 0) {
+			list_del(&function->list);
+			function->config = NULL;
+		}
+	} else
+		value = 0;
+
+	/* We allow configurations that don't work at both speeds.
+	 * If we run into a lowspeed Linux system, treat it the same
+	 * as full speed ... it's the function drivers that will need
+	 * to avoid bulk and ISO transfers.
+	 */
+	if (!config->fullspeed && function->descriptors)
+		config->fullspeed = true;
+	if (!config->highspeed && function->hs_descriptors)
+		config->highspeed = true;
+	if (!config->superspeed && function->ss_descriptors)
+		config->superspeed = true;
+
+done:
+	if (value)
+		DBG(config->cdev, "adding '%s'/%p --> %d\n",
+				function->name, function, value);
+	return value;
+}
+
+/**
+ * usb_function_deactivate - prevent function and gadget enumeration
+ * @function: the function that isn't yet ready to respond
+ *
+ * Blocks response of the gadget driver to host enumeration by
+ * preventing the data line pullup from being activated.  This is
+ * normally called during @bind() processing to change from the
+ * initial "ready to respond" state, or when a required resource
+ * becomes available.
+ *
+ * For example, drivers that serve as a passthrough to a userspace
+ * daemon can block enumeration unless that daemon (such as an OBEX,
+ * MTP, or print server) is ready to handle host requests.
+ *
+ * Not all systems support software control of their USB peripheral
+ * data pullups.
+ *
+ * Returns zero on success, else negative errno.
+ */
+int usb_function_deactivate(struct usb_function *function)
+{
+	struct usb_composite_dev	*cdev = function->config->cdev;
+	unsigned long			flags;
+	int				status = 0;
+
+	spin_lock_irqsave(&cdev->lock, flags);
+
+	if (cdev->deactivations == 0)
+		status = usb_gadget_disconnect(cdev->gadget);
+	if (status == 0)
+		cdev->deactivations++;
+
+	spin_unlock_irqrestore(&cdev->lock, flags);
+	return status;
+}
+
+/**
+ * usb_function_activate - allow function and gadget enumeration
+ * @function: function on which usb_function_activate() was called
+ *
+ * Reverses effect of usb_function_deactivate().  If no more functions
+ * are delaying their activation, the gadget driver will respond to
+ * host enumeration procedures.
+ *
+ * Returns zero on success, else negative errno.
+ */
+int usb_function_activate(struct usb_function *function)
+{
+	struct usb_composite_dev	*cdev = function->config->cdev;
+	unsigned long			flags;
+	int				status = 0;
+
+	spin_lock_irqsave(&cdev->lock, flags);
+
+	if (WARN_ON(cdev->deactivations == 0))
+		status = -EINVAL;
+	else {
+		cdev->deactivations--;
+		if (cdev->deactivations == 0)
+			status = usb_gadget_connect(cdev->gadget);
+	}
+
+	spin_unlock_irqrestore(&cdev->lock, flags);
+	return status;
+}
+
+/**
+ * usb_interface_id() - allocate an unused interface ID
+ * @config: configuration associated with the interface
+ * @function: function handling the interface
+ * Context: single threaded during gadget setup
+ *
+ * usb_interface_id() is called from usb_function.bind() callbacks to
+ * allocate new interface IDs.  The function driver will then store that
+ * ID in interface, association, CDC union, and other descriptors.  It
+ * will also handle any control requests targeted at that interface,
+ * particularly changing its altsetting via set_alt().  There may
+ * also be class-specific or vendor-specific requests to handle.
+ *
+ * All interface identifier should be allocated using this routine, to
+ * ensure that for example different functions don't wrongly assign
+ * different meanings to the same identifier.  Note that since interface
+ * identifiers are configuration-specific, functions used in more than
+ * one configuration (or more than once in a given configuration) need
+ * multiple versions of the relevant descriptors.
+ *
+ * Returns the interface ID which was allocated; or -ENODEV if no
+ * more interface IDs can be allocated.
+ */
+int usb_interface_id(struct usb_configuration *config,
+		struct usb_function *function)
+{
+	unsigned id = config->next_interface_id;
+
+	if (id < MAX_CONFIG_INTERFACES) {
+		config->interface[id] = function;
+		config->next_interface_id = id + 1;
+		return id;
+	}
+	return -ENODEV;
+}
+
+static int config_buf(struct usb_configuration *config,
+		enum usb_device_speed speed, void *buf, u8 type)
+{
+	struct usb_config_descriptor	*c = buf;
+	void				*next = buf + USB_DT_CONFIG_SIZE;
+	int				len = USB_BUFSIZ - USB_DT_CONFIG_SIZE;
+	struct usb_function		*f;
+	int				status;
+
+	/* write the config descriptor */
+	c = buf;
+	c->bLength = USB_DT_CONFIG_SIZE;
+	c->bDescriptorType = type;
+	/* wTotalLength is written later */
+	c->bNumInterfaces = config->next_interface_id;
+	c->bConfigurationValue = config->bConfigurationValue;
+	c->iConfiguration = config->iConfiguration;
+	c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes;
+	c->bMaxPower = config->bMaxPower ? : (CONFIG_USB_GADGET_VBUS_DRAW / 2);
+
+	/* There may be e.g. OTG descriptors */
+	if (config->descriptors) {
+		status = usb_descriptor_fillbuf(next, len,
+				config->descriptors);
+		if (status < 0)
+			return status;
+		len -= status;
+		next += status;
+	}
+
+	/* add each function's descriptors */
+	list_for_each_entry(f, &config->functions, list) {
+		struct usb_descriptor_header **descriptors;
+
+		switch (speed) {
+		case USB_SPEED_SUPER:
+			descriptors = f->ss_descriptors;
+			break;
+		case USB_SPEED_HIGH:
+			descriptors = f->hs_descriptors;
+			break;
+		default:
+			descriptors = f->descriptors;
+		}
+
+		if (!descriptors)
+			continue;
+		status = usb_descriptor_fillbuf(next, len,
+			(const struct usb_descriptor_header **) descriptors);
+		if (status < 0)
+			return status;
+		len -= status;
+		next += status;
+	}
+
+	len = next - buf;
+	c->wTotalLength = cpu_to_le16(len);
+	return len;
+}
+
+static int config_desc(struct usb_composite_dev *cdev, unsigned w_value)
+{
+	struct usb_gadget		*gadget = cdev->gadget;
+	struct usb_configuration	*c;
+	u8				type = w_value >> 8;
+	enum usb_device_speed		speed = USB_SPEED_UNKNOWN;
+
+	if (gadget->speed == USB_SPEED_SUPER)
+		speed = gadget->speed;
+	else if (gadget_is_dualspeed(gadget)) {
+		int	hs = 0;
+		if (gadget->speed == USB_SPEED_HIGH)
+			hs = 1;
+		if (type == USB_DT_OTHER_SPEED_CONFIG)
+			hs = !hs;
+		if (hs)
+			speed = USB_SPEED_HIGH;
+
+	}
+
+	/* This is a lookup by config *INDEX* */
+	w_value &= 0xff;
+	list_for_each_entry(c, &cdev->configs, list) {
+		/* ignore configs that won't work at this speed */
+		switch (speed) {
+		case USB_SPEED_SUPER:
+			if (!c->superspeed)
+				continue;
+			break;
+		case USB_SPEED_HIGH:
+			if (!c->highspeed)
+				continue;
+			break;
+		default:
+			if (!c->fullspeed)
+				continue;
+		}
+
+		if (w_value == 0)
+			return config_buf(c, speed, cdev->req->buf, type);
+		w_value--;
+	}
+	return -EINVAL;
+}
+
+static int count_configs(struct usb_composite_dev *cdev, unsigned type)
+{
+	struct usb_gadget		*gadget = cdev->gadget;
+	struct usb_configuration	*c;
+	unsigned			count = 0;
+	int				hs = 0;
+	int				ss = 0;
+
+	if (gadget_is_dualspeed(gadget)) {
+		if (gadget->speed == USB_SPEED_HIGH)
+			hs = 1;
+		if (gadget->speed == USB_SPEED_SUPER)
+			ss = 1;
+		if (type == USB_DT_DEVICE_QUALIFIER)
+			hs = !hs;
+	}
+	list_for_each_entry(c, &cdev->configs, list) {
+		/* ignore configs that won't work at this speed */
+		if (ss) {
+			if (!c->superspeed)
+				continue;
+		} else if (hs) {
+			if (!c->highspeed)
+				continue;
+		} else {
+			if (!c->fullspeed)
+				continue;
+		}
+		count++;
+	}
+	return count;
+}
+
+/**
+ * bos_desc() - prepares the BOS descriptor.
+ * @cdev: pointer to usb_composite device to generate the bos
+ *	descriptor for
+ *
+ * This function generates the BOS (Binary Device Object)
+ * descriptor and its device capabilities descriptors. The BOS
+ * descriptor should be supported by a SuperSpeed device.
+ */
+static int bos_desc(struct usb_composite_dev *cdev)
+{
+	struct usb_ext_cap_descriptor	*usb_ext;
+	struct usb_ss_cap_descriptor	*ss_cap;
+	struct usb_dcd_config_params	dcd_config_params;
+	struct usb_bos_descriptor	*bos = cdev->req->buf;
+
+	bos->bLength = USB_DT_BOS_SIZE;
+	bos->bDescriptorType = USB_DT_BOS;
+
+	bos->wTotalLength = cpu_to_le16(USB_DT_BOS_SIZE);
+	bos->bNumDeviceCaps = 0;
+
+	/*
+	 * A SuperSpeed device shall include the USB2.0 extension descriptor
+	 * and shall support LPM when operating in USB2.0 HS mode.
+	 */
+	usb_ext = cdev->req->buf + le16_to_cpu(bos->wTotalLength);
+	bos->bNumDeviceCaps++;
+	le16_add_cpu(&bos->wTotalLength, USB_DT_USB_EXT_CAP_SIZE);
+	usb_ext->bLength = USB_DT_USB_EXT_CAP_SIZE;
+	usb_ext->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
+	usb_ext->bDevCapabilityType = USB_CAP_TYPE_EXT;
+	usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT);
+
+	/*
+	 * The Superspeed USB Capability descriptor shall be implemented by all
+	 * SuperSpeed devices.
+	 */
+	ss_cap = cdev->req->buf + le16_to_cpu(bos->wTotalLength);
+	bos->bNumDeviceCaps++;
+	le16_add_cpu(&bos->wTotalLength, USB_DT_USB_SS_CAP_SIZE);
+	ss_cap->bLength = USB_DT_USB_SS_CAP_SIZE;
+	ss_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
+	ss_cap->bDevCapabilityType = USB_SS_CAP_TYPE;
+	ss_cap->bmAttributes = 0; /* LTM is not supported yet */
+	ss_cap->wSpeedSupported = cpu_to_le16(USB_LOW_SPEED_OPERATION |
+				USB_FULL_SPEED_OPERATION |
+				USB_HIGH_SPEED_OPERATION |
+				USB_5GBPS_OPERATION);
+	ss_cap->bFunctionalitySupport = USB_LOW_SPEED_OPERATION;
+
+	/* Get Controller configuration */
+	if (cdev->gadget->ops->get_config_params)
+		cdev->gadget->ops->get_config_params(&dcd_config_params);
+	else {
+		dcd_config_params.bU1devExitLat = USB_DEFAULT_U1_DEV_EXIT_LAT;
+		dcd_config_params.bU2DevExitLat =
+			cpu_to_le16(USB_DEFAULT_U2_DEV_EXIT_LAT);
+	}
+	ss_cap->bU1devExitLat = dcd_config_params.bU1devExitLat;
+	ss_cap->bU2DevExitLat = dcd_config_params.bU2DevExitLat;
+
+	return le16_to_cpu(bos->wTotalLength);
+}
+
+static void device_qual(struct usb_composite_dev *cdev)
+{
+	struct usb_qualifier_descriptor	*qual = cdev->req->buf;
+
+	qual->bLength = sizeof(*qual);
+	qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER;
+	/* POLICY: same bcdUSB and device type info at both speeds */
+	qual->bcdUSB = cdev->desc.bcdUSB;
+	qual->bDeviceClass = cdev->desc.bDeviceClass;
+	qual->bDeviceSubClass = cdev->desc.bDeviceSubClass;
+	qual->bDeviceProtocol = cdev->desc.bDeviceProtocol;
+	/* ASSUME same EP0 fifo size at both speeds */
+	qual->bMaxPacketSize0 = cdev->gadget->ep0->maxpacket;
+	qual->bNumConfigurations = count_configs(cdev, USB_DT_DEVICE_QUALIFIER);
+	qual->bRESERVED = 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void reset_config(struct usb_composite_dev *cdev)
+{
+	struct usb_function		*f;
+
+	DBG(cdev, "reset config\n");
+
+	list_for_each_entry(f, &cdev->config->functions, list) {
+		if (f->disable)
+			f->disable(f);
+
+		bitmap_zero(f->endpoints, 32);
+	}
+	cdev->config = NULL;
+}
+
+static int set_config(struct usb_composite_dev *cdev,
+		const struct usb_ctrlrequest *ctrl, unsigned number)
+{
+	struct usb_gadget	*gadget = cdev->gadget;
+	struct usb_configuration *c = NULL;
+	int			result = -EINVAL;
+	unsigned		power = gadget_is_otg(gadget) ? 8 : 100;
+	int			tmp;
+
+	if (number) {
+		list_for_each_entry(c, &cdev->configs, list) {
+			if (c->bConfigurationValue == number) {
+				/*
+				 * We disable the FDs of the previous
+				 * configuration only if the new configuration
+				 * is a valid one
+				 */
+				if (cdev->config)
+					reset_config(cdev);
+				result = 0;
+				break;
+			}
+		}
+		if (result < 0)
+			goto done;
+	} else { /* Zero configuration value - need to reset the config */
+		if (cdev->config)
+			reset_config(cdev);
+		result = 0;
+	}
+
+	INFO(cdev, "%s config #%d: %s\n",
+	     usb_speed_string(gadget->speed),
+	     number, c ? c->label : "unconfigured");
+
+	if (!c)
+		goto done;
+
+	cdev->config = c;
+
+	/* Initialize all interfaces by setting them to altsetting zero. */
+	for (tmp = 0; tmp < MAX_CONFIG_INTERFACES; tmp++) {
+		struct usb_function	*f = c->interface[tmp];
+		struct usb_descriptor_header **descriptors;
+
+		if (!f)
+			break;
+
+		/*
+		 * Record which endpoints are used by the function. This is used
+		 * to dispatch control requests targeted at that endpoint to the
+		 * function's setup callback instead of the current
+		 * configuration's setup callback.
+		 */
+		switch (gadget->speed) {
+		case USB_SPEED_SUPER:
+			descriptors = f->ss_descriptors;
+			break;
+		case USB_SPEED_HIGH:
+			descriptors = f->hs_descriptors;
+			break;
+		default:
+			descriptors = f->descriptors;
+		}
+
+		for (; *descriptors; ++descriptors) {
+			struct usb_endpoint_descriptor *ep;
+			int addr;
+
+			if ((*descriptors)->bDescriptorType != USB_DT_ENDPOINT)
+				continue;
+
+			ep = (struct usb_endpoint_descriptor *)*descriptors;
+			addr = ((ep->bEndpointAddress & 0x80) >> 3)
+			     |  (ep->bEndpointAddress & 0x0f);
+			set_bit(addr, f->endpoints);
+		}
+
+		result = f->set_alt(f, tmp, 0);
+		if (result < 0) {
+			DBG(cdev, "interface %d (%s/%p) alt 0 --> %d\n",
+					tmp, f->name, f, result);
+
+			reset_config(cdev);
+			goto done;
+		}
+
+		if (result == USB_GADGET_DELAYED_STATUS) {
+			DBG(cdev,
+			 "%s: interface %d (%s) requested delayed status\n",
+					__func__, tmp, f->name);
+			cdev->delayed_status++;
+			DBG(cdev, "delayed_status count %d\n",
+					cdev->delayed_status);
+		}
+	}
+
+	/* when we return, be sure our power usage is valid */
+	power = c->bMaxPower ? (2 * c->bMaxPower) : CONFIG_USB_GADGET_VBUS_DRAW;
+done:
+	usb_gadget_vbus_draw(gadget, power);
+	if (result >= 0 && cdev->delayed_status)
+		result = USB_GADGET_DELAYED_STATUS;
+	return result;
+}
+
+/**
+ * usb_add_config() - add a configuration to a device.
+ * @cdev: wraps the USB gadget
+ * @config: the configuration, with bConfigurationValue assigned
+ * @bind: the configuration's bind function
+ * Context: single threaded during gadget setup
+ *
+ * One of the main tasks of a composite @bind() routine is to
+ * add each of the configurations it supports, using this routine.
+ *
+ * This function returns the value of the configuration's @bind(), which
+ * is zero for success else a negative errno value.  Binding configurations
+ * assigns global resources including string IDs, and per-configuration
+ * resources such as interface IDs and endpoints.
+ */
+int usb_add_config(struct usb_composite_dev *cdev,
+		struct usb_configuration *config,
+		int (*bind)(struct usb_configuration *))
+{
+	int				status = -EINVAL;
+	struct usb_configuration	*c;
+
+	DBG(cdev, "adding config #%u '%s'/%p\n",
+			config->bConfigurationValue,
+			config->label, config);
+
+	if (!config->bConfigurationValue || !bind)
+		goto done;
+
+	/* Prevent duplicate configuration identifiers */
+	list_for_each_entry(c, &cdev->configs, list) {
+		if (c->bConfigurationValue == config->bConfigurationValue) {
+			status = -EBUSY;
+			goto done;
+		}
+	}
+
+	config->cdev = cdev;
+	list_add_tail(&config->list, &cdev->configs);
+
+	INIT_LIST_HEAD(&config->functions);
+	config->next_interface_id = 0;
+	memset(config->interface, 0, sizeof(config->interface));
+
+	status = bind(config);
+	if (status < 0) {
+		while (!list_empty(&config->functions)) {
+			struct usb_function		*f;
+
+			f = list_first_entry(&config->functions,
+					struct usb_function, list);
+			list_del(&f->list);
+			if (f->unbind) {
+				DBG(cdev, "unbind function '%s'/%p\n",
+					f->name, f);
+				f->unbind(config, f);
+				/* may free memory for "f" */
+			}
+		}
+		list_del(&config->list);
+		config->cdev = NULL;
+	} else {
+		unsigned	i;
+
+		DBG(cdev, "cfg %d/%p speeds:%s%s%s\n",
+			config->bConfigurationValue, config,
+			config->superspeed ? " super" : "",
+			config->highspeed ? " high" : "",
+			config->fullspeed
+				? (gadget_is_dualspeed(cdev->gadget)
+					? " full"
+					: " full/low")
+				: "");
+
+		for (i = 0; i < MAX_CONFIG_INTERFACES; i++) {
+			struct usb_function	*f = config->interface[i];
+
+			if (!f)
+				continue;
+			DBG(cdev, "  interface %d = %s/%p\n",
+				i, f->name, f);
+		}
+	}
+
+	/* set_alt(), or next bind(), sets up
+	 * ep->driver_data as needed.
+	 */
+	usb_ep_autoconfig_reset(cdev->gadget);
+
+done:
+	if (status)
+		DBG(cdev, "added config '%s'/%u --> %d\n", config->label,
+				config->bConfigurationValue, status);
+	return status;
+}
+
+static void remove_config(struct usb_composite_dev *cdev,
+			      struct usb_configuration *config)
+{
+	while (!list_empty(&config->functions)) {
+		struct usb_function		*f;
+
+		f = list_first_entry(&config->functions,
+				struct usb_function, list);
+		list_del(&f->list);
+		if (f->unbind) {
+			DBG(cdev, "unbind function '%s'/%p\n", f->name, f);
+			f->unbind(config, f);
+			/* may free memory for "f" */
+		}
+	}
+	list_del(&config->list);
+	if (config->unbind) {
+		DBG(cdev, "unbind config '%s'/%p\n", config->label, config);
+		config->unbind(config);
+			/* may free memory for "c" */
+	}
+}
+
+/**
+ * usb_remove_config() - remove a configuration from a device.
+ * @cdev: wraps the USB gadget
+ * @config: the configuration
+ *
+ * Drivers must call usb_gadget_disconnect before calling this function
+ * to disconnect the device from the host and make sure the host will not
+ * try to enumerate the device while we are changing the config list.
+ */
+void usb_remove_config(struct usb_composite_dev *cdev,
+		      struct usb_configuration *config)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&cdev->lock, flags);
+
+	if (cdev->config == config)
+		reset_config(cdev);
+
+	spin_unlock_irqrestore(&cdev->lock, flags);
+
+	remove_config(cdev, config);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* We support strings in multiple languages ... string descriptor zero
+ * says which languages are supported.  The typical case will be that
+ * only one language (probably English) is used, with I18N handled on
+ * the host side.
+ */
+
+static void collect_langs(struct usb_gadget_strings **sp, __le16 *buf)
+{
+	const struct usb_gadget_strings	*s;
+	__le16				language;
+	__le16				*tmp;
+
+	while (*sp) {
+		s = *sp;
+		language = cpu_to_le16(s->language);
+		for (tmp = buf; *tmp && tmp < &buf[126]; tmp++) {
+			if (*tmp == language)
+				goto repeat;
+		}
+		*tmp++ = language;
+repeat:
+		sp++;
+	}
+}
+
+static int lookup_string(
+	struct usb_gadget_strings	**sp,
+	void				*buf,
+	u16				language,
+	int				id
+)
+{
+	struct usb_gadget_strings	*s;
+	int				value;
+
+	while (*sp) {
+		s = *sp++;
+		if (s->language != language)
+			continue;
+		value = usb_gadget_get_string(s, id, buf);
+		if (value > 0)
+			return value;
+	}
+	return -EINVAL;
+}
+
+static int get_string(struct usb_composite_dev *cdev,
+		void *buf, u16 language, int id)
+{
+	struct usb_configuration	*c;
+	struct usb_function		*f;
+	int				len;
+	const char			*str;
+
+	/* Yes, not only is USB's I18N support probably more than most
+	 * folk will ever care about ... also, it's all supported here.
+	 * (Except for UTF8 support for Unicode's "Astral Planes".)
+	 */
+
+	/* 0 == report all available language codes */
+	if (id == 0) {
+		struct usb_string_descriptor	*s = buf;
+		struct usb_gadget_strings	**sp;
+
+		memset(s, 0, 256);
+		s->bDescriptorType = USB_DT_STRING;
+
+		sp = composite->strings;
+		if (sp)
+			collect_langs(sp, s->wData);
+
+		list_for_each_entry(c, &cdev->configs, list) {
+			sp = c->strings;
+			if (sp)
+				collect_langs(sp, s->wData);
+
+			list_for_each_entry(f, &c->functions, list) {
+				sp = f->strings;
+				if (sp)
+					collect_langs(sp, s->wData);
+			}
+		}
+
+		for (len = 0; len <= 126 && s->wData[len]; len++)
+			continue;
+		if (!len)
+			return -EINVAL;
+
+		s->bLength = 2 * (len + 1);
+		return s->bLength;
+	}
+
+	/* Otherwise, look up and return a specified string.  First
+	 * check if the string has not been overridden.
+	 */
+	if (cdev->manufacturer_override == id)
+		str = iManufacturer ?: composite->iManufacturer ?:
+			composite_manufacturer;
+	else if (cdev->product_override == id)
+		str = iProduct ?: composite->iProduct;
+	else if (cdev->serial_override == id)
+		str = iSerialNumber ?: composite->iSerialNumber;
+	else
+		str = NULL;
+	if (str) {
+		struct usb_gadget_strings strings = {
+			.language = language,
+			.strings  = &(struct usb_string) { 0xff, str }
+		};
+		return usb_gadget_get_string(&strings, 0xff, buf);
+	}
+
+	/* String IDs are device-scoped, so we look up each string
+	 * table we're told about.  These lookups are infrequent;
+	 * simpler-is-better here.
+	 */
+	if (composite->strings) {
+		len = lookup_string(composite->strings, buf, language, id);
+		if (len > 0)
+			return len;
+	}
+	list_for_each_entry(c, &cdev->configs, list) {
+		if (c->strings) {
+			len = lookup_string(c->strings, buf, language, id);
+			if (len > 0)
+				return len;
+		}
+		list_for_each_entry(f, &c->functions, list) {
+			if (!f->strings)
+				continue;
+			len = lookup_string(f->strings, buf, language, id);
+			if (len > 0)
+				return len;
+		}
+	}
+	return -EINVAL;
+}
+
+/**
+ * usb_string_id() - allocate an unused string ID
+ * @cdev: the device whose string descriptor IDs are being allocated
+ * Context: single threaded during gadget setup
+ *
+ * @usb_string_id() is called from bind() callbacks to allocate
+ * string IDs.  Drivers for functions, configurations, or gadgets will
+ * then store that ID in the appropriate descriptors and string table.
+ *
+ * All string identifier should be allocated using this,
+ * @usb_string_ids_tab() or @usb_string_ids_n() routine, to ensure
+ * that for example different functions don't wrongly assign different
+ * meanings to the same identifier.
+ */
+int usb_string_id(struct usb_composite_dev *cdev)
+{
+	if (cdev->next_string_id < 254) {
+		/* string id 0 is reserved by USB spec for list of
+		 * supported languages */
+		/* 255 reserved as well? -- mina86 */
+		cdev->next_string_id++;
+		return cdev->next_string_id;
+	}
+	return -ENODEV;
+}
+
+/**
+ * usb_string_ids() - allocate unused string IDs in batch
+ * @cdev: the device whose string descriptor IDs are being allocated
+ * @str: an array of usb_string objects to assign numbers to
+ * Context: single threaded during gadget setup
+ *
+ * @usb_string_ids() is called from bind() callbacks to allocate
+ * string IDs.  Drivers for functions, configurations, or gadgets will
+ * then copy IDs from the string table to the appropriate descriptors
+ * and string table for other languages.
+ *
+ * All string identifier should be allocated using this,
+ * @usb_string_id() or @usb_string_ids_n() routine, to ensure that for
+ * example different functions don't wrongly assign different meanings
+ * to the same identifier.
+ */
+int usb_string_ids_tab(struct usb_composite_dev *cdev, struct usb_string *str)
+{
+	int next = cdev->next_string_id;
+
+	for (; str->s; ++str) {
+		if (unlikely(next >= 254))
+			return -ENODEV;
+		str->id = ++next;
+	}
+
+	cdev->next_string_id = next;
+
+	return 0;
+}
+
+/**
+ * usb_string_ids_n() - allocate unused string IDs in batch
+ * @c: the device whose string descriptor IDs are being allocated
+ * @n: number of string IDs to allocate
+ * Context: single threaded during gadget setup
+ *
+ * Returns the first requested ID.  This ID and next @n-1 IDs are now
+ * valid IDs.  At least provided that @n is non-zero because if it
+ * is, returns last requested ID which is now very useful information.
+ *
+ * @usb_string_ids_n() is called from bind() callbacks to allocate
+ * string IDs.  Drivers for functions, configurations, or gadgets will
+ * then store that ID in the appropriate descriptors and string table.
+ *
+ * All string identifier should be allocated using this,
+ * @usb_string_id() or @usb_string_ids_n() routine, to ensure that for
+ * example different functions don't wrongly assign different meanings
+ * to the same identifier.
+ */
+int usb_string_ids_n(struct usb_composite_dev *c, unsigned n)
+{
+	unsigned next = c->next_string_id;
+	if (unlikely(n > 254 || (unsigned)next + n > 254))
+		return -ENODEV;
+	c->next_string_id += n;
+	return next + 1;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static void composite_setup_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	if (req->status || req->actual != req->length)
+		DBG((struct usb_composite_dev *) ep->driver_data,
+				"setup complete --> %d, %d/%d\n",
+				req->status, req->actual, req->length);
+}
+
+/*
+ * The setup() callback implements all the ep0 functionality that's
+ * not handled lower down, in hardware or the hardware driver(like
+ * device and endpoint feature flags, and their status).  It's all
+ * housekeeping for the gadget function we're implementing.  Most of
+ * the work is in config and function specific setup.
+ */
+static int
+composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
+{
+	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+	struct usb_request		*req = cdev->req;
+	int				value = -EOPNOTSUPP;
+	int				status = 0;
+	u16				w_index = le16_to_cpu(ctrl->wIndex);
+	u8				intf = w_index & 0xFF;
+	u16				w_value = le16_to_cpu(ctrl->wValue);
+	u16				w_length = le16_to_cpu(ctrl->wLength);
+	struct usb_function		*f = NULL;
+	u8				endp;
+
+	/* partial re-init of the response message; the function or the
+	 * gadget might need to intercept e.g. a control-OUT completion
+	 * when we delegate to it.
+	 */
+	req->zero = 0;
+	req->complete = composite_setup_complete;
+	req->length = 0;
+	gadget->ep0->driver_data = cdev;
+
+	switch (ctrl->bRequest) {
+
+	/* we handle all standard USB descriptors */
+	case USB_REQ_GET_DESCRIPTOR:
+		if (ctrl->bRequestType != USB_DIR_IN)
+			goto unknown;
+		switch (w_value >> 8) {
+
+		case USB_DT_DEVICE:
+			cdev->desc.bNumConfigurations =
+				count_configs(cdev, USB_DT_DEVICE);
+			cdev->desc.bMaxPacketSize0 =
+				cdev->gadget->ep0->maxpacket;
+			if (gadget_is_superspeed(gadget)) {
+				if (gadget->speed >= USB_SPEED_SUPER) {
+					cdev->desc.bcdUSB = cpu_to_le16(0x0300);
+					cdev->desc.bMaxPacketSize0 = 9;
+				} else {
+					cdev->desc.bcdUSB = cpu_to_le16(0x0210);
+				}
+			}
+
+			value = min(w_length, (u16) sizeof cdev->desc);
+			memcpy(req->buf, &cdev->desc, value);
+			break;
+		case USB_DT_DEVICE_QUALIFIER:
+			if (!gadget_is_dualspeed(gadget) ||
+			    gadget->speed >= USB_SPEED_SUPER)
+				break;
+			device_qual(cdev);
+			value = min_t(int, w_length,
+				sizeof(struct usb_qualifier_descriptor));
+			break;
+		case USB_DT_OTHER_SPEED_CONFIG:
+			if (!gadget_is_dualspeed(gadget) ||
+			    gadget->speed >= USB_SPEED_SUPER)
+				break;
+			/* FALLTHROUGH */
+		case USB_DT_CONFIG:
+			value = config_desc(cdev, w_value);
+			if (value >= 0)
+				value = min(w_length, (u16) value);
+			break;
+		case USB_DT_STRING:
+			value = get_string(cdev, req->buf,
+					w_index, w_value & 0xff);
+			if (value >= 0)
+				value = min(w_length, (u16) value);
+			break;
+		case USB_DT_BOS:
+			if (gadget_is_superspeed(gadget)) {
+				value = bos_desc(cdev);
+				value = min(w_length, (u16) value);
+			}
+			break;
+		}
+		break;
+
+	/* any number of configs can work */
+	case USB_REQ_SET_CONFIGURATION:
+		if (ctrl->bRequestType != 0)
+			goto unknown;
+		if (gadget_is_otg(gadget)) {
+			if (gadget->a_hnp_support)
+				DBG(cdev, "HNP available\n");
+			else if (gadget->a_alt_hnp_support)
+				DBG(cdev, "HNP on another port\n");
+			else
+				VDBG(cdev, "HNP inactive\n");
+		}
+		spin_lock(&cdev->lock);
+		value = set_config(cdev, ctrl, w_value);
+		spin_unlock(&cdev->lock);
+		break;
+	case USB_REQ_GET_CONFIGURATION:
+		if (ctrl->bRequestType != USB_DIR_IN)
+			goto unknown;
+		if (cdev->config)
+			*(u8 *)req->buf = cdev->config->bConfigurationValue;
+		else
+			*(u8 *)req->buf = 0;
+		value = min(w_length, (u16) 1);
+		break;
+
+	/* function drivers must handle get/set altsetting; if there's
+	 * no get() method, we know only altsetting zero works.
+	 */
+	case USB_REQ_SET_INTERFACE:
+		if (ctrl->bRequestType != USB_RECIP_INTERFACE)
+			goto unknown;
+		if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
+			break;
+		f = cdev->config->interface[intf];
+		if (!f)
+			break;
+		if (w_value && !f->set_alt)
+			break;
+		value = f->set_alt(f, w_index, w_value);
+		if (value == USB_GADGET_DELAYED_STATUS) {
+			DBG(cdev,
+			 "%s: interface %d (%s) requested delayed status\n",
+					__func__, intf, f->name);
+			cdev->delayed_status++;
+			DBG(cdev, "delayed_status count %d\n",
+					cdev->delayed_status);
+		}
+		break;
+	case USB_REQ_GET_INTERFACE:
+		if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE))
+			goto unknown;
+		if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
+			break;
+		f = cdev->config->interface[intf];
+		if (!f)
+			break;
+		/* lots of interfaces only need altsetting zero... */
+		value = f->get_alt ? f->get_alt(f, w_index) : 0;
+		if (value < 0)
+			break;
+		*((u8 *)req->buf) = value;
+		value = min(w_length, (u16) 1);
+		break;
+
+	/*
+	 * USB 3.0 additions:
+	 * Function driver should handle get_status request. If such cb
+	 * wasn't supplied we respond with default value = 0
+	 * Note: function driver should supply such cb only for the first
+	 * interface of the function
+	 */
+	case USB_REQ_GET_STATUS:
+		if (!gadget_is_superspeed(gadget))
+			goto unknown;
+		if (ctrl->bRequestType != (USB_DIR_IN | USB_RECIP_INTERFACE))
+			goto unknown;
+		value = 2;	/* This is the length of the get_status reply */
+		put_unaligned_le16(0, req->buf);
+		if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
+			break;
+		f = cdev->config->interface[intf];
+		if (!f)
+			break;
+		status = f->get_status ? f->get_status(f) : 0;
+		if (status < 0)
+			break;
+		put_unaligned_le16(status & 0x0000ffff, req->buf);
+		break;
+	/*
+	 * Function drivers should handle SetFeature/ClearFeature
+	 * (FUNCTION_SUSPEND) request. function_suspend cb should be supplied
+	 * only for the first interface of the function
+	 */
+	case USB_REQ_CLEAR_FEATURE:
+	case USB_REQ_SET_FEATURE:
+		if (!gadget_is_superspeed(gadget))
+			goto unknown;
+		if (ctrl->bRequestType != (USB_DIR_OUT | USB_RECIP_INTERFACE))
+			goto unknown;
+		switch (w_value) {
+		case USB_INTRF_FUNC_SUSPEND:
+			if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
+				break;
+			f = cdev->config->interface[intf];
+			if (!f)
+				break;
+			value = 0;
+			if (f->func_suspend)
+				value = f->func_suspend(f, w_index >> 8);
+			if (value < 0) {
+				ERROR(cdev,
+				      "func_suspend() returned error %d\n",
+				      value);
+				value = 0;
+			}
+			break;
+		}
+		break;
+	default:
+unknown:
+		VDBG(cdev,
+			"non-core control req%02x.%02x v%04x i%04x l%d\n",
+			ctrl->bRequestType, ctrl->bRequest,
+			w_value, w_index, w_length);
+
+		/* functions always handle their interfaces and endpoints...
+		 * punt other recipients (other, WUSB, ...) to the current
+		 * configuration code.
+		 *
+		 * REVISIT it could make sense to let the composite device
+		 * take such requests too, if that's ever needed:  to work
+		 * in config 0, etc.
+		 */
+		switch (ctrl->bRequestType & USB_RECIP_MASK) {
+		case USB_RECIP_INTERFACE:
+			if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
+				break;
+			f = cdev->config->interface[intf];
+			break;
+
+		case USB_RECIP_ENDPOINT:
+			endp = ((w_index & 0x80) >> 3) | (w_index & 0x0f);
+			list_for_each_entry(f, &cdev->config->functions, list) {
+				if (test_bit(endp, f->endpoints))
+					break;
+			}
+			if (&f->list == &cdev->config->functions)
+				f = NULL;
+			break;
+		}
+
+		if (f && f->setup)
+			value = f->setup(f, ctrl);
+		else {
+			struct usb_configuration	*c;
+
+			c = cdev->config;
+			if (c && c->setup)
+				value = c->setup(c, ctrl);
+		}
+
+		goto done;
+	}
+
+	/* respond with data transfer before status phase? */
+	if (value >= 0 && value != USB_GADGET_DELAYED_STATUS) {
+		req->length = value;
+		req->zero = value < w_length;
+		value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
+		if (value < 0) {
+			DBG(cdev, "ep_queue --> %d\n", value);
+			req->status = 0;
+			composite_setup_complete(gadget->ep0, req);
+		}
+	} else if (value == USB_GADGET_DELAYED_STATUS && w_length != 0) {
+		WARN(cdev,
+			"%s: Delayed status not supported for w_length != 0",
+			__func__);
+	}
+
+done:
+	/* device either stalls (value < 0) or reports success */
+	return value;
+}
+
+static void composite_disconnect(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+	unsigned long			flags;
+
+	/* REVISIT:  should we have config and device level
+	 * disconnect callbacks?
+	 */
+	spin_lock_irqsave(&cdev->lock, flags);
+	if (cdev->config)
+		reset_config(cdev);
+	if (composite->disconnect)
+		composite->disconnect(cdev);
+	spin_unlock_irqrestore(&cdev->lock, flags);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static ssize_t composite_show_suspended(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	struct usb_gadget *gadget = dev_to_usb_gadget(dev);
+	struct usb_composite_dev *cdev = get_gadget_data(gadget);
+
+	return sprintf(buf, "%d\n", cdev->suspended);
+}
+
+static DEVICE_ATTR(suspended, 0444, composite_show_suspended, NULL);
+
+static void
+composite_unbind(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+
+	/* composite_disconnect() must already have been called
+	 * by the underlying peripheral controller driver!
+	 * so there's no i/o concurrency that could affect the
+	 * state protected by cdev->lock.
+	 */
+	WARN_ON(cdev->config);
+
+	while (!list_empty(&cdev->configs)) {
+		struct usb_configuration	*c;
+		c = list_first_entry(&cdev->configs,
+				struct usb_configuration, list);
+		remove_config(cdev, c);
+	}
+	if (composite->unbind)
+		composite->unbind(cdev);
+
+	if (cdev->req) {
+		kfree(cdev->req->buf);
+		usb_ep_free_request(gadget->ep0, cdev->req);
+	}
+	device_remove_file(&gadget->dev, &dev_attr_suspended);
+	kfree(cdev);
+	set_gadget_data(gadget, NULL);
+	composite = NULL;
+}
+
+static u8 override_id(struct usb_composite_dev *cdev, u8 *desc)
+{
+	if (!*desc) {
+		int ret = usb_string_id(cdev);
+		if (unlikely(ret < 0))
+			WARNING(cdev, "failed to override string ID\n");
+		else
+			*desc = ret;
+	}
+
+	return *desc;
+}
+
+static int composite_bind(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
+{
+	struct usb_composite_dev	*cdev;
+	int				status = -ENOMEM;
+
+	cdev = kzalloc(sizeof *cdev, GFP_KERNEL);
+	if (!cdev)
+		return status;
+
+	spin_lock_init(&cdev->lock);
+	cdev->gadget = gadget;
+	set_gadget_data(gadget, cdev);
+	INIT_LIST_HEAD(&cdev->configs);
+
+	/* preallocate control response and buffer */
+	cdev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL);
+	if (!cdev->req)
+		goto fail;
+	cdev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL);
+	if (!cdev->req->buf)
+		goto fail;
+	cdev->req->complete = composite_setup_complete;
+	gadget->ep0->driver_data = cdev;
+
+	cdev->bufsiz = USB_BUFSIZ;
+	cdev->driver = composite;
+
+	/*
+	 * As per USB compliance update, a device that is actively drawing
+	 * more than 100mA from USB must report itself as bus-powered in
+	 * the GetStatus(DEVICE) call.
+	 */
+	if (CONFIG_USB_GADGET_VBUS_DRAW <= USB_SELF_POWER_VBUS_MAX_DRAW)
+		usb_gadget_set_selfpowered(gadget);
+
+	/* interface and string IDs start at zero via kzalloc.
+	 * we force endpoints to start unassigned; few controller
+	 * drivers will zero ep->driver_data.
+	 */
+	usb_ep_autoconfig_reset(cdev->gadget);
+
+	/* composite gadget needs to assign strings for whole device (like
+	 * serial number), register function drivers, potentially update
+	 * power state and consumption, etc
+	 */
+	status = composite->bind(cdev);
+	if (status < 0)
+		goto fail;
+
+	cdev->desc = *composite->dev;
+
+	/* standardized runtime overrides for device ID data */
+	if (idVendor)
+		cdev->desc.idVendor = cpu_to_le16(idVendor);
+	else
+		idVendor = le16_to_cpu(cdev->desc.idVendor);
+	if (idProduct)
+		cdev->desc.idProduct = cpu_to_le16(idProduct);
+	else
+		idProduct = le16_to_cpu(cdev->desc.idProduct);
+	if (bcdDevice)
+		cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
+	else
+		bcdDevice = le16_to_cpu(cdev->desc.bcdDevice);
+
+	/* string overrides */
+	if (iManufacturer || !cdev->desc.iManufacturer) {
+		if (!iManufacturer && !composite->iManufacturer &&
+		    !*composite_manufacturer)
+			snprintf(composite_manufacturer,
+				 sizeof composite_manufacturer,
+				 "%s %s with %s",
+				 init_utsname()->sysname,
+				 init_utsname()->release,
+				 gadget->name);
+
+		cdev->manufacturer_override =
+			override_id(cdev, &cdev->desc.iManufacturer);
+	}
+
+	if (iProduct || (!cdev->desc.iProduct && composite->iProduct))
+		cdev->product_override =
+			override_id(cdev, &cdev->desc.iProduct);
+
+	if (iSerialNumber ||
+	    (!cdev->desc.iSerialNumber && composite->iSerialNumber))
+		cdev->serial_override =
+			override_id(cdev, &cdev->desc.iSerialNumber);
+
+	/* has userspace failed to provide a serial number? */
+	if (composite->needs_serial && !cdev->desc.iSerialNumber)
+		WARNING(cdev, "userspace failed to provide iSerialNumber\n");
+
+	/* finish up */
+	status = device_create_file(&gadget->dev, &dev_attr_suspended);
+	if (status)
+		goto fail;
+
+	INFO(cdev, "%s ready\n", composite->name);
+	return 0;
+
+fail:
+	composite_unbind(gadget);
+	return status;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void
+composite_suspend(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+	struct usb_function		*f;
+
+	/* REVISIT:  should we have config level
+	 * suspend/resume callbacks?
+	 */
+	DBG(cdev, "suspend\n");
+	if (cdev->config) {
+		list_for_each_entry(f, &cdev->config->functions, list) {
+			if (f->suspend)
+				f->suspend(f);
+		}
+	}
+	if (composite->suspend)
+		composite->suspend(cdev);
+
+	cdev->suspended = 1;
+
+	usb_gadget_vbus_draw(gadget, 2);
+}
+
+static void
+composite_resume(struct usb_gadget *gadget)
+{
+	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+	struct usb_function		*f;
+	u8				maxpower;
+
+	/* REVISIT:  should we have config level
+	 * suspend/resume callbacks?
+	 */
+	DBG(cdev, "resume\n");
+	if (composite->resume)
+		composite->resume(cdev);
+	if (cdev->config) {
+		list_for_each_entry(f, &cdev->config->functions, list) {
+			if (f->resume)
+				f->resume(f);
+		}
+
+		maxpower = cdev->config->bMaxPower;
+
+		usb_gadget_vbus_draw(gadget, maxpower ?
+			(2 * maxpower) : CONFIG_USB_GADGET_VBUS_DRAW);
+	}
+
+	cdev->suspended = 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static struct usb_gadget_driver composite_driver = {
+	.bind		= composite_bind,
+	.unbind		= composite_unbind,
+
+	.setup		= composite_setup,
+	.disconnect	= composite_disconnect,
+
+	.suspend	= composite_suspend,
+	.resume		= composite_resume,
+
+	.driver	= {
+		.owner		= THIS_MODULE,
+	},
+};
+
+/**
+ * usb_composite_probe() - register a composite driver
+ * @driver: the driver to register
+ * @bind: the callback used to allocate resources that are shared across the
+ *	whole device, such as string IDs, and add its configurations using
+ *	@usb_add_config().  This may fail by returning a negative errno
+ *	value; it should return zero on successful initialization.
+ * Context: single threaded during gadget setup
+ *
+ * This function is used to register drivers using the composite driver
+ * framework.  The return value is zero, or a negative errno value.
+ * Those values normally come from the driver's @bind method, which does
+ * all the work of setting up the driver to match the hardware.
+ *
+ * On successful return, the gadget is ready to respond to requests from
+ * the host, unless one of its components invokes usb_gadget_disconnect()
+ * while it was binding.  That would usually be done in order to wait for
+ * some userspace participation.
+ */
+int usb_composite_probe(struct usb_composite_driver *driver)
+{
+	if (!driver || !driver->dev || composite || !driver->bind)
+		return -EINVAL;
+
+	if (!driver->name)
+		driver->name = "composite";
+	if (!driver->iProduct)
+		driver->iProduct = driver->name;
+	composite_driver.function =  (char *) driver->name;
+	composite_driver.driver.name = driver->name;
+	composite_driver.max_speed = driver->max_speed;
+	composite = driver;
+
+	return usb_gadget_probe_driver(&composite_driver);
+}
+
+/**
+ * usb_composite_unregister() - unregister a composite driver
+ * @driver: the driver to unregister
+ *
+ * This function is used to unregister drivers using the composite
+ * driver framework.
+ */
+void usb_composite_unregister(struct usb_composite_driver *driver)
+{
+	if (composite != driver)
+		return;
+	usb_gadget_unregister_driver(&composite_driver);
+}
+
+/**
+ * usb_composite_setup_continue() - Continue with the control transfer
+ * @cdev: the composite device who's control transfer was kept waiting
+ *
+ * This function must be called by the USB function driver to continue
+ * with the control transfer's data/status stage in case it had requested to
+ * delay the data/status stages. A USB function's setup handler (e.g. set_alt())
+ * can request the composite framework to delay the setup request's data/status
+ * stages by returning USB_GADGET_DELAYED_STATUS.
+ */
+void usb_composite_setup_continue(struct usb_composite_dev *cdev)
+{
+	int			value;
+	struct usb_request	*req = cdev->req;
+	unsigned long		flags;
+
+	DBG(cdev, "%s\n", __func__);
+	spin_lock_irqsave(&cdev->lock, flags);
+
+	if (cdev->delayed_status == 0) {
+		WARN(cdev, "%s: Unexpected call\n", __func__);
+
+	} else if (--cdev->delayed_status == 0) {
+		DBG(cdev, "%s: Completing delayed status\n", __func__);
+		req->length = 0;
+		value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+		if (value < 0) {
+			DBG(cdev, "ep_queue --> %d\n", value);
+			req->status = 0;
+			composite_setup_complete(cdev->gadget->ep0, req);
+		}
+	}
+
+	spin_unlock_irqrestore(&cdev->lock, flags);
+}
+
diff --git a/drivers/staging/ccg/composite.h b/drivers/staging/ccg/composite.h
new file mode 100644
index 00000000000..19a5adf18bf
--- /dev/null
+++ b/drivers/staging/ccg/composite.h
@@ -0,0 +1,395 @@
+/*
+ * composite.h -- framework for usb gadgets which are composite devices
+ *
+ * Copyright (C) 2006-2008 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef	__LINUX_USB_COMPOSITE_H
+#define	__LINUX_USB_COMPOSITE_H
+
+/*
+ * This framework is an optional layer on top of the USB Gadget interface,
+ * making it easier to build (a) Composite devices, supporting multiple
+ * functions within any single configuration, and (b) Multi-configuration
+ * devices, also supporting multiple functions but without necessarily
+ * having more than one function per configuration.
+ *
+ * Example:  a device with a single configuration supporting both network
+ * link and mass storage functions is a composite device.  Those functions
+ * might alternatively be packaged in individual configurations, but in
+ * the composite model the host can use both functions at the same time.
+ */
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+/*
+ * USB function drivers should return USB_GADGET_DELAYED_STATUS if they
+ * wish to delay the data/status stages of the control transfer till they
+ * are ready. The control transfer will then be kept from completing till
+ * all the function drivers that requested for USB_GADGET_DELAYED_STAUS
+ * invoke usb_composite_setup_continue().
+ */
+#define USB_GADGET_DELAYED_STATUS       0x7fff	/* Impossibly large value */
+
+struct usb_configuration;
+
+/**
+ * struct usb_function - describes one function of a configuration
+ * @name: For diagnostics, identifies the function.
+ * @strings: tables of strings, keyed by identifiers assigned during bind()
+ *	and by language IDs provided in control requests
+ * @descriptors: Table of full (or low) speed descriptors, using interface and
+ *	string identifiers assigned during @bind().  If this pointer is null,
+ *	the function will not be available at full speed (or at low speed).
+ * @hs_descriptors: Table of high speed descriptors, using interface and
+ *	string identifiers assigned during @bind().  If this pointer is null,
+ *	the function will not be available at high speed.
+ * @ss_descriptors: Table of super speed descriptors, using interface and
+ *	string identifiers assigned during @bind(). If this
+ *	pointer is null after initiation, the function will not
+ *	be available at super speed.
+ * @config: assigned when @usb_add_function() is called; this is the
+ *	configuration with which this function is associated.
+ * @bind: Before the gadget can register, all of its functions bind() to the
+ *	available resources including string and interface identifiers used
+ *	in interface or class descriptors; endpoints; I/O buffers; and so on.
+ * @unbind: Reverses @bind; called as a side effect of unregistering the
+ *	driver which added this function.
+ * @set_alt: (REQUIRED) Reconfigures altsettings; function drivers may
+ *	initialize usb_ep.driver data at this time (when it is used).
+ *	Note that setting an interface to its current altsetting resets
+ *	interface state, and that all interfaces have a disabled state.
+ * @get_alt: Returns the active altsetting.  If this is not provided,
+ *	then only altsetting zero is supported.
+ * @disable: (REQUIRED) Indicates the function should be disabled.  Reasons
+ *	include host resetting or reconfiguring the gadget, and disconnection.
+ * @setup: Used for interface-specific control requests.
+ * @suspend: Notifies functions when the host stops sending USB traffic.
+ * @resume: Notifies functions when the host restarts USB traffic.
+ * @get_status: Returns function status as a reply to
+ *	GetStatus() request when the recepient is Interface.
+ * @func_suspend: callback to be called when
+ *	SetFeature(FUNCTION_SUSPEND) is reseived
+ *
+ * A single USB function uses one or more interfaces, and should in most
+ * cases support operation at both full and high speeds.  Each function is
+ * associated by @usb_add_function() with a one configuration; that function
+ * causes @bind() to be called so resources can be allocated as part of
+ * setting up a gadget driver.  Those resources include endpoints, which
+ * should be allocated using @usb_ep_autoconfig().
+ *
+ * To support dual speed operation, a function driver provides descriptors
+ * for both high and full speed operation.  Except in rare cases that don't
+ * involve bulk endpoints, each speed needs different endpoint descriptors.
+ *
+ * Function drivers choose their own strategies for managing instance data.
+ * The simplest strategy just declares it "static', which means the function
+ * can only be activated once.  If the function needs to be exposed in more
+ * than one configuration at a given speed, it needs to support multiple
+ * usb_function structures (one for each configuration).
+ *
+ * A more complex strategy might encapsulate a @usb_function structure inside
+ * a driver-specific instance structure to allows multiple activations.  An
+ * example of multiple activations might be a CDC ACM function that supports
+ * two or more distinct instances within the same configuration, providing
+ * several independent logical data links to a USB host.
+ */
+struct usb_function {
+	const char			*name;
+	struct usb_gadget_strings	**strings;
+	struct usb_descriptor_header	**descriptors;
+	struct usb_descriptor_header	**hs_descriptors;
+	struct usb_descriptor_header	**ss_descriptors;
+
+	struct usb_configuration	*config;
+
+	/* REVISIT:  bind() functions can be marked __init, which
+	 * makes trouble for section mismatch analysis.  See if
+	 * we can't restructure things to avoid mismatching.
+	 * Related:  unbind() may kfree() but bind() won't...
+	 */
+
+	/* configuration management:  bind/unbind */
+	int			(*bind)(struct usb_configuration *,
+					struct usb_function *);
+	void			(*unbind)(struct usb_configuration *,
+					struct usb_function *);
+
+	/* runtime state management */
+	int			(*set_alt)(struct usb_function *,
+					unsigned interface, unsigned alt);
+	int			(*get_alt)(struct usb_function *,
+					unsigned interface);
+	void			(*disable)(struct usb_function *);
+	int			(*setup)(struct usb_function *,
+					const struct usb_ctrlrequest *);
+	void			(*suspend)(struct usb_function *);
+	void			(*resume)(struct usb_function *);
+
+	/* USB 3.0 additions */
+	int			(*get_status)(struct usb_function *);
+	int			(*func_suspend)(struct usb_function *,
+						u8 suspend_opt);
+	/* private: */
+	/* internals */
+	struct list_head		list;
+	DECLARE_BITMAP(endpoints, 32);
+};
+
+int usb_add_function(struct usb_configuration *, struct usb_function *);
+
+int usb_function_deactivate(struct usb_function *);
+int usb_function_activate(struct usb_function *);
+
+int usb_interface_id(struct usb_configuration *, struct usb_function *);
+
+int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f,
+			struct usb_ep *_ep);
+
+#define	MAX_CONFIG_INTERFACES		16	/* arbitrary; max 255 */
+
+/**
+ * struct usb_configuration - represents one gadget configuration
+ * @label: For diagnostics, describes the configuration.
+ * @strings: Tables of strings, keyed by identifiers assigned during @bind()
+ *	and by language IDs provided in control requests.
+ * @descriptors: Table of descriptors preceding all function descriptors.
+ *	Examples include OTG and vendor-specific descriptors.
+ * @unbind: Reverses @bind; called as a side effect of unregistering the
+ *	driver which added this configuration.
+ * @setup: Used to delegate control requests that aren't handled by standard
+ *	device infrastructure or directed at a specific interface.
+ * @bConfigurationValue: Copied into configuration descriptor.
+ * @iConfiguration: Copied into configuration descriptor.
+ * @bmAttributes: Copied into configuration descriptor.
+ * @bMaxPower: Copied into configuration descriptor.
+ * @cdev: assigned by @usb_add_config() before calling @bind(); this is
+ *	the device associated with this configuration.
+ *
+ * Configurations are building blocks for gadget drivers structured around
+ * function drivers.  Simple USB gadgets require only one function and one
+ * configuration, and handle dual-speed hardware by always providing the same
+ * functionality.  Slightly more complex gadgets may have more than one
+ * single-function configuration at a given speed; or have configurations
+ * that only work at one speed.
+ *
+ * Composite devices are, by definition, ones with configurations which
+ * include more than one function.
+ *
+ * The lifecycle of a usb_configuration includes allocation, initialization
+ * of the fields described above, and calling @usb_add_config() to set up
+ * internal data and bind it to a specific device.  The configuration's
+ * @bind() method is then used to initialize all the functions and then
+ * call @usb_add_function() for them.
+ *
+ * Those functions would normally be independent of each other, but that's
+ * not mandatory.  CDC WMC devices are an example where functions often
+ * depend on other functions, with some functions subsidiary to others.
+ * Such interdependency may be managed in any way, so long as all of the
+ * descriptors complete by the time the composite driver returns from
+ * its bind() routine.
+ */
+struct usb_configuration {
+	const char			*label;
+	struct usb_gadget_strings	**strings;
+	const struct usb_descriptor_header **descriptors;
+
+	/* REVISIT:  bind() functions can be marked __init, which
+	 * makes trouble for section mismatch analysis.  See if
+	 * we can't restructure things to avoid mismatching...
+	 */
+
+	/* configuration management: unbind/setup */
+	void			(*unbind)(struct usb_configuration *);
+	int			(*setup)(struct usb_configuration *,
+					const struct usb_ctrlrequest *);
+
+	/* fields in the config descriptor */
+	u8			bConfigurationValue;
+	u8			iConfiguration;
+	u8			bmAttributes;
+	u8			bMaxPower;
+
+	struct usb_composite_dev	*cdev;
+
+	/* private: */
+	/* internals */
+	struct list_head	list;
+	struct list_head	functions;
+	u8			next_interface_id;
+	unsigned		superspeed:1;
+	unsigned		highspeed:1;
+	unsigned		fullspeed:1;
+	struct usb_function	*interface[MAX_CONFIG_INTERFACES];
+};
+
+int usb_add_config(struct usb_composite_dev *,
+		struct usb_configuration *,
+		int (*)(struct usb_configuration *));
+
+void usb_remove_config(struct usb_composite_dev *,
+		struct usb_configuration *);
+
+/**
+ * struct usb_composite_driver - groups configurations into a gadget
+ * @name: For diagnostics, identifies the driver.
+ * @iProduct: Used as iProduct override if @dev->iProduct is not set.
+ *	If NULL value of @name is taken.
+ * @iManufacturer: Used as iManufacturer override if @dev->iManufacturer is
+ *	not set. If NULL a default "<system> <release> with <udc>" value
+ *	will be used.
+ * @iSerialNumber: Used as iSerialNumber override if @dev->iSerialNumber is
+ *	not set.
+ * @dev: Template descriptor for the device, including default device
+ *	identifiers.
+ * @strings: tables of strings, keyed by identifiers assigned during @bind
+ *	and language IDs provided in control requests
+ * @max_speed: Highest speed the driver supports.
+ * @needs_serial: set to 1 if the gadget needs userspace to provide
+ * 	a serial number.  If one is not provided, warning will be printed.
+ * @bind: (REQUIRED) Used to allocate resources that are shared across the
+ *	whole device, such as string IDs, and add its configurations using
+ *	@usb_add_config(). This may fail by returning a negative errno
+ *	value; it should return zero on successful initialization.
+ * @unbind: Reverses @bind; called as a side effect of unregistering
+ *	this driver.
+ * @disconnect: optional driver disconnect method
+ * @suspend: Notifies when the host stops sending USB traffic,
+ *	after function notifications
+ * @resume: Notifies configuration when the host restarts USB traffic,
+ *	before function notifications
+ *
+ * Devices default to reporting self powered operation.  Devices which rely
+ * on bus powered operation should report this in their @bind method.
+ *
+ * Before returning from @bind, various fields in the template descriptor
+ * may be overridden.  These include the idVendor/idProduct/bcdDevice values
+ * normally to bind the appropriate host side driver, and the three strings
+ * (iManufacturer, iProduct, iSerialNumber) normally used to provide user
+ * meaningful device identifiers.  (The strings will not be defined unless
+ * they are defined in @dev and @strings.)  The correct ep0 maxpacket size
+ * is also reported, as defined by the underlying controller driver.
+ */
+struct usb_composite_driver {
+	const char				*name;
+	const char				*iProduct;
+	const char				*iManufacturer;
+	const char				*iSerialNumber;
+	const struct usb_device_descriptor	*dev;
+	struct usb_gadget_strings		**strings;
+	enum usb_device_speed			max_speed;
+	unsigned		needs_serial:1;
+
+	int			(*bind)(struct usb_composite_dev *cdev);
+	int			(*unbind)(struct usb_composite_dev *);
+
+	void			(*disconnect)(struct usb_composite_dev *);
+
+	/* global suspend hooks */
+	void			(*suspend)(struct usb_composite_dev *);
+	void			(*resume)(struct usb_composite_dev *);
+};
+
+extern int usb_composite_probe(struct usb_composite_driver *driver);
+extern void usb_composite_unregister(struct usb_composite_driver *driver);
+extern void usb_composite_setup_continue(struct usb_composite_dev *cdev);
+
+
+/**
+ * struct usb_composite_device - represents one composite usb gadget
+ * @gadget: read-only, abstracts the gadget's usb peripheral controller
+ * @req: used for control responses; buffer is pre-allocated
+ * @bufsiz: size of buffer pre-allocated in @req
+ * @config: the currently active configuration
+ *
+ * One of these devices is allocated and initialized before the
+ * associated device driver's bind() is called.
+ *
+ * OPEN ISSUE:  it appears that some WUSB devices will need to be
+ * built by combining a normal (wired) gadget with a wireless one.
+ * This revision of the gadget framework should probably try to make
+ * sure doing that won't hurt too much.
+ *
+ * One notion for how to handle Wireless USB devices involves:
+ * (a) a second gadget here, discovery mechanism TBD, but likely
+ *     needing separate "register/unregister WUSB gadget" calls;
+ * (b) updates to usb_gadget to include flags "is it wireless",
+ *     "is it wired", plus (presumably in a wrapper structure)
+ *     bandgroup and PHY info;
+ * (c) presumably a wireless_ep wrapping a usb_ep, and reporting
+ *     wireless-specific parameters like maxburst and maxsequence;
+ * (d) configurations that are specific to wireless links;
+ * (e) function drivers that understand wireless configs and will
+ *     support wireless for (additional) function instances;
+ * (f) a function to support association setup (like CBAF), not
+ *     necessarily requiring a wireless adapter;
+ * (g) composite device setup that can create one or more wireless
+ *     configs, including appropriate association setup support;
+ * (h) more, TBD.
+ */
+struct usb_composite_dev {
+	struct usb_gadget		*gadget;
+	struct usb_request		*req;
+	unsigned			bufsiz;
+
+	struct usb_configuration	*config;
+
+	/* private: */
+	/* internals */
+	unsigned int			suspended:1;
+	struct usb_device_descriptor	desc;
+	struct list_head		configs;
+	struct usb_composite_driver	*driver;
+	u8				next_string_id;
+	u8				manufacturer_override;
+	u8				product_override;
+	u8				serial_override;
+
+	/* the gadget driver won't enable the data pullup
+	 * while the deactivation count is nonzero.
+	 */
+	unsigned			deactivations;
+
+	/* the composite driver won't complete the control transfer's
+	 * data/status stages till delayed_status is zero.
+	 */
+	int				delayed_status;
+
+	/* protects deactivations and delayed_status counts*/
+	spinlock_t			lock;
+};
+
+extern int usb_string_id(struct usb_composite_dev *c);
+extern int usb_string_ids_tab(struct usb_composite_dev *c,
+			      struct usb_string *str);
+extern int usb_string_ids_n(struct usb_composite_dev *c, unsigned n);
+
+
+/* messaging utils */
+#define DBG(d, fmt, args...) \
+	dev_dbg(&(d)->gadget->dev , fmt , ## args)
+#define VDBG(d, fmt, args...) \
+	dev_vdbg(&(d)->gadget->dev , fmt , ## args)
+#define ERROR(d, fmt, args...) \
+	dev_err(&(d)->gadget->dev , fmt , ## args)
+#define WARNING(d, fmt, args...) \
+	dev_warn(&(d)->gadget->dev , fmt , ## args)
+#define INFO(d, fmt, args...) \
+	dev_info(&(d)->gadget->dev , fmt , ## args)
+
+#endif	/* __LINUX_USB_COMPOSITE_H */
diff --git a/drivers/staging/ccg/config.c b/drivers/staging/ccg/config.c
new file mode 100644
index 00000000000..7542a72ce51
--- /dev/null
+++ b/drivers/staging/ccg/config.c
@@ -0,0 +1,158 @@
+/*
+ * usb/gadget/config.c -- simplify building config descriptors
+ *
+ * Copyright (C) 2003 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/string.h>
+#include <linux/device.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+
+/**
+ * usb_descriptor_fillbuf - fill buffer with descriptors
+ * @buf: Buffer to be filled
+ * @buflen: Size of buf
+ * @src: Array of descriptor pointers, terminated by null pointer.
+ *
+ * Copies descriptors into the buffer, returning the length or a
+ * negative error code if they can't all be copied.  Useful when
+ * assembling descriptors for an associated set of interfaces used
+ * as part of configuring a composite device; or in other cases where
+ * sets of descriptors need to be marshaled.
+ */
+int
+usb_descriptor_fillbuf(void *buf, unsigned buflen,
+		const struct usb_descriptor_header **src)
+{
+	u8	*dest = buf;
+
+	if (!src)
+		return -EINVAL;
+
+	/* fill buffer from src[] until null descriptor ptr */
+	for (; NULL != *src; src++) {
+		unsigned		len = (*src)->bLength;
+
+		if (len > buflen)
+			return -EINVAL;
+		memcpy(dest, *src, len);
+		buflen -= len;
+		dest += len;
+	}
+	return dest - (u8 *)buf;
+}
+
+
+/**
+ * usb_gadget_config_buf - builts a complete configuration descriptor
+ * @config: Header for the descriptor, including characteristics such
+ *	as power requirements and number of interfaces.
+ * @desc: Null-terminated vector of pointers to the descriptors (interface,
+ *	endpoint, etc) defining all functions in this device configuration.
+ * @buf: Buffer for the resulting configuration descriptor.
+ * @length: Length of buffer.  If this is not big enough to hold the
+ *	entire configuration descriptor, an error code will be returned.
+ *
+ * This copies descriptors into the response buffer, building a descriptor
+ * for that configuration.  It returns the buffer length or a negative
+ * status code.  The config.wTotalLength field is set to match the length
+ * of the result, but other descriptor fields (including power usage and
+ * interface count) must be set by the caller.
+ *
+ * Gadget drivers could use this when constructing a config descriptor
+ * in response to USB_REQ_GET_DESCRIPTOR.  They will need to patch the
+ * resulting bDescriptorType value if USB_DT_OTHER_SPEED_CONFIG is needed.
+ */
+int usb_gadget_config_buf(
+	const struct usb_config_descriptor	*config,
+	void					*buf,
+	unsigned				length,
+	const struct usb_descriptor_header	**desc
+)
+{
+	struct usb_config_descriptor		*cp = buf;
+	int					len;
+
+	/* config descriptor first */
+	if (length < USB_DT_CONFIG_SIZE || !desc)
+		return -EINVAL;
+	*cp = *config;
+
+	/* then interface/endpoint/class/vendor/... */
+	len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8*)buf,
+			length - USB_DT_CONFIG_SIZE, desc);
+	if (len < 0)
+		return len;
+	len += USB_DT_CONFIG_SIZE;
+	if (len > 0xffff)
+		return -EINVAL;
+
+	/* patch up the config descriptor */
+	cp->bLength = USB_DT_CONFIG_SIZE;
+	cp->bDescriptorType = USB_DT_CONFIG;
+	cp->wTotalLength = cpu_to_le16(len);
+	cp->bmAttributes |= USB_CONFIG_ATT_ONE;
+	return len;
+}
+
+/**
+ * usb_copy_descriptors - copy a vector of USB descriptors
+ * @src: null-terminated vector to copy
+ * Context: initialization code, which may sleep
+ *
+ * This makes a copy of a vector of USB descriptors.  Its primary use
+ * is to support usb_function objects which can have multiple copies,
+ * each needing different descriptors.  Functions may have static
+ * tables of descriptors, which are used as templates and customized
+ * with identifiers (for interfaces, strings, endpoints, and more)
+ * as needed by a given function instance.
+ */
+struct usb_descriptor_header **
+usb_copy_descriptors(struct usb_descriptor_header **src)
+{
+	struct usb_descriptor_header **tmp;
+	unsigned bytes;
+	unsigned n_desc;
+	void *mem;
+	struct usb_descriptor_header **ret;
+
+	/* count descriptors and their sizes; then add vector size */
+	for (bytes = 0, n_desc = 0, tmp = src; *tmp; tmp++, n_desc++)
+		bytes += (*tmp)->bLength;
+	bytes += (n_desc + 1) * sizeof(*tmp);
+
+	mem = kmalloc(bytes, GFP_KERNEL);
+	if (!mem)
+		return NULL;
+
+	/* fill in pointers starting at "tmp",
+	 * to descriptors copied starting at "mem";
+	 * and return "ret"
+	 */
+	tmp = mem;
+	ret = mem;
+	mem += (n_desc + 1) * sizeof(*tmp);
+	while (*src) {
+		memcpy(mem, *src, (*src)->bLength);
+		*tmp = mem;
+		tmp++;
+		mem += (*src)->bLength;
+		src++;
+	}
+	*tmp = NULL;
+
+	return ret;
+}
+
diff --git a/drivers/staging/ccg/epautoconf.c b/drivers/staging/ccg/epautoconf.c
new file mode 100644
index 00000000000..51f3d42f5a6
--- /dev/null
+++ b/drivers/staging/ccg/epautoconf.c
@@ -0,0 +1,393 @@
+/*
+ * epautoconf.c -- endpoint autoconfiguration for usb gadget drivers
+ *
+ * Copyright (C) 2004 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/device.h>
+
+#include <linux/ctype.h>
+#include <linux/string.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+#include "gadget_chips.h"
+
+
+/* we must assign addresses for configurable endpoints (like net2280) */
+static unsigned epnum;
+
+// #define MANY_ENDPOINTS
+#ifdef MANY_ENDPOINTS
+/* more than 15 configurable endpoints */
+static unsigned in_epnum;
+#endif
+
+
+/*
+ * This should work with endpoints from controller drivers sharing the
+ * same endpoint naming convention.  By example:
+ *
+ *	- ep1, ep2, ... address is fixed, not direction or type
+ *	- ep1in, ep2out, ... address and direction are fixed, not type
+ *	- ep1-bulk, ep2-bulk, ... address and type are fixed, not direction
+ *	- ep1in-bulk, ep2out-iso, ... all three are fixed
+ *	- ep-* ... no functionality restrictions
+ *
+ * Type suffixes are "-bulk", "-iso", or "-int".  Numbers are decimal.
+ * Less common restrictions are implied by gadget_is_*().
+ *
+ * NOTE:  each endpoint is unidirectional, as specified by its USB
+ * descriptor; and isn't specific to a configuration or altsetting.
+ */
+static int
+ep_matches (
+	struct usb_gadget		*gadget,
+	struct usb_ep			*ep,
+	struct usb_endpoint_descriptor	*desc,
+	struct usb_ss_ep_comp_descriptor *ep_comp
+)
+{
+	u8		type;
+	const char	*tmp;
+	u16		max;
+
+	int		num_req_streams = 0;
+
+	/* endpoint already claimed? */
+	if (NULL != ep->driver_data)
+		return 0;
+
+	/* only support ep0 for portable CONTROL traffic */
+	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+	if (USB_ENDPOINT_XFER_CONTROL == type)
+		return 0;
+
+	/* some other naming convention */
+	if ('e' != ep->name[0])
+		return 0;
+
+	/* type-restriction:  "-iso", "-bulk", or "-int".
+	 * direction-restriction:  "in", "out".
+	 */
+	if ('-' != ep->name[2]) {
+		tmp = strrchr (ep->name, '-');
+		if (tmp) {
+			switch (type) {
+			case USB_ENDPOINT_XFER_INT:
+				/* bulk endpoints handle interrupt transfers,
+				 * except the toggle-quirky iso-synch kind
+				 */
+				if ('s' == tmp[2])	// == "-iso"
+					return 0;
+				/* for now, avoid PXA "interrupt-in";
+				 * it's documented as never using DATA1.
+				 */
+				if (gadget_is_pxa (gadget)
+						&& 'i' == tmp [1])
+					return 0;
+				break;
+			case USB_ENDPOINT_XFER_BULK:
+				if ('b' != tmp[1])	// != "-bulk"
+					return 0;
+				break;
+			case USB_ENDPOINT_XFER_ISOC:
+				if ('s' != tmp[2])	// != "-iso"
+					return 0;
+			}
+		} else {
+			tmp = ep->name + strlen (ep->name);
+		}
+
+		/* direction-restriction:  "..in-..", "out-.." */
+		tmp--;
+		if (!isdigit (*tmp)) {
+			if (desc->bEndpointAddress & USB_DIR_IN) {
+				if ('n' != *tmp)
+					return 0;
+			} else {
+				if ('t' != *tmp)
+					return 0;
+			}
+		}
+	}
+
+	/*
+	 * Get the number of required streams from the EP companion
+	 * descriptor and see if the EP matches it
+	 */
+	if (usb_endpoint_xfer_bulk(desc)) {
+		if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
+
+	}
+
+	/*
+	 * If the protocol driver hasn't yet decided on wMaxPacketSize
+	 * and wants to know the maximum possible, provide the info.
+	 */
+	if (desc->wMaxPacketSize == 0)
+		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket);
+
+	/* endpoint maxpacket size is an input parameter, except for bulk
+	 * where it's an output parameter representing the full speed limit.
+	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
+	 */
+	max = 0x7ff & usb_endpoint_maxp(desc);
+	switch (type) {
+	case USB_ENDPOINT_XFER_INT:
+		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 64)
+			return 0;
+		/* FALLTHROUGH */
+
+	case USB_ENDPOINT_XFER_ISOC:
+		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
+		if (ep->maxpacket < max)
+			return 0;
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
+
+		/* BOTH:  "high bandwidth" works only at high speed */
+		if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
+			if (!gadget_is_dualspeed(gadget))
+				return 0;
+			/* configure your hardware with enough buffering!! */
+		}
+		break;
+	}
+
+	/* MATCH!! */
+
+	/* report address */
+	desc->bEndpointAddress &= USB_DIR_IN;
+	if (isdigit (ep->name [2])) {
+		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
+		desc->bEndpointAddress |= num;
+#ifdef	MANY_ENDPOINTS
+	} else if (desc->bEndpointAddress & USB_DIR_IN) {
+		if (++in_epnum > 15)
+			return 0;
+		desc->bEndpointAddress = USB_DIR_IN | in_epnum;
+#endif
+	} else {
+		if (++epnum > 15)
+			return 0;
+		desc->bEndpointAddress |= epnum;
+	}
+
+	/* report (variable) full speed bulk maxpacket */
+	if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) {
+		int size = ep->maxpacket;
+
+		/* min() doesn't work on bitfields with gcc-3.5 */
+		if (size > 64)
+			size = 64;
+		desc->wMaxPacketSize = cpu_to_le16(size);
+	}
+	ep->address = desc->bEndpointAddress;
+	return 1;
+}
+
+static struct usb_ep *
+find_ep (struct usb_gadget *gadget, const char *name)
+{
+	struct usb_ep	*ep;
+
+	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+		if (0 == strcmp (ep->name, name))
+			return ep;
+	}
+	return NULL;
+}
+
+/**
+ * usb_ep_autoconfig_ss() - choose an endpoint matching the ep
+ * descriptor and ep companion descriptor
+ * @gadget: The device to which the endpoint must belong.
+ * @desc: Endpoint descriptor, with endpoint direction and transfer mode
+ *    initialized.  For periodic transfers, the maximum packet
+ *    size must also be initialized.  This is modified on
+ *    success.
+ * @ep_comp: Endpoint companion descriptor, with the required
+ *    number of streams. Will be modified when the chosen EP
+ *    supports a different number of streams.
+ *
+ * This routine replaces the usb_ep_autoconfig when needed
+ * superspeed enhancments. If such enhancemnets are required,
+ * the FD should call usb_ep_autoconfig_ss directly and provide
+ * the additional ep_comp parameter.
+ *
+ * By choosing an endpoint to use with the specified descriptor,
+ * this routine simplifies writing gadget drivers that work with
+ * multiple USB device controllers.  The endpoint would be
+ * passed later to usb_ep_enable(), along with some descriptor.
+ *
+ * That second descriptor won't always be the same as the first one.
+ * For example, isochronous endpoints can be autoconfigured for high
+ * bandwidth, and then used in several lower bandwidth altsettings.
+ * Also, high and full speed descriptors will be different.
+ *
+ * Be sure to examine and test the results of autoconfiguration
+ * on your hardware.  This code may not make the best choices
+ * about how to use the USB controller, and it can't know all
+ * the restrictions that may apply. Some combinations of driver
+ * and hardware won't be able to autoconfigure.
+ *
+ * On success, this returns an un-claimed usb_ep, and modifies the endpoint
+ * descriptor bEndpointAddress.  For bulk endpoints, the wMaxPacket value
+ * is initialized as if the endpoint were used at full speed and
+ * the bmAttribute field in the ep companion descriptor is
+ * updated with the assigned number of streams if it is
+ * different from the original value. To prevent the endpoint
+ * from being returned by a later autoconfig call, claim it by
+ * assigning ep->driver_data to some non-null value.
+ *
+ * On failure, this returns a null endpoint descriptor.
+ */
+struct usb_ep *usb_ep_autoconfig_ss(
+	struct usb_gadget		*gadget,
+	struct usb_endpoint_descriptor	*desc,
+	struct usb_ss_ep_comp_descriptor *ep_comp
+)
+{
+	struct usb_ep	*ep;
+	u8		type;
+
+	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+
+	/* First, apply chip-specific "best usage" knowledge.
+	 * This might make a good usb_gadget_ops hook ...
+	 */
+	if (gadget_is_net2280 (gadget) && type == USB_ENDPOINT_XFER_INT) {
+		/* ep-e, ep-f are PIO with only 64 byte fifos */
+		ep = find_ep (gadget, "ep-e");
+		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+		ep = find_ep (gadget, "ep-f");
+		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+
+	} else if (gadget_is_goku (gadget)) {
+		if (USB_ENDPOINT_XFER_INT == type) {
+			/* single buffering is enough */
+			ep = find_ep(gadget, "ep3-bulk");
+			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+				goto found_ep;
+		} else if (USB_ENDPOINT_XFER_BULK == type
+				&& (USB_DIR_IN & desc->bEndpointAddress)) {
+			/* DMA may be available */
+			ep = find_ep(gadget, "ep2-bulk");
+			if (ep && ep_matches(gadget, ep, desc,
+					      ep_comp))
+				goto found_ep;
+		}
+
+#ifdef CONFIG_BLACKFIN
+	} else if (gadget_is_musbhdrc(gadget)) {
+		if ((USB_ENDPOINT_XFER_BULK == type) ||
+		    (USB_ENDPOINT_XFER_ISOC == type)) {
+			if (USB_DIR_IN & desc->bEndpointAddress)
+				ep = find_ep (gadget, "ep5in");
+			else
+				ep = find_ep (gadget, "ep6out");
+		} else if (USB_ENDPOINT_XFER_INT == type) {
+			if (USB_DIR_IN & desc->bEndpointAddress)
+				ep = find_ep(gadget, "ep1in");
+			else
+				ep = find_ep(gadget, "ep2out");
+		} else
+			ep = NULL;
+		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+#endif
+	}
+
+	/* Second, look at endpoints until an unclaimed one looks usable */
+	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+		if (ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+	}
+
+	/* Fail */
+	return NULL;
+found_ep:
+	ep->desc = NULL;
+	ep->comp_desc = NULL;
+	return ep;
+}
+
+/**
+ * usb_ep_autoconfig() - choose an endpoint matching the
+ * descriptor
+ * @gadget: The device to which the endpoint must belong.
+ * @desc: Endpoint descriptor, with endpoint direction and transfer mode
+ *	initialized.  For periodic transfers, the maximum packet
+ *	size must also be initialized.  This is modified on success.
+ *
+ * By choosing an endpoint to use with the specified descriptor, this
+ * routine simplifies writing gadget drivers that work with multiple
+ * USB device controllers.  The endpoint would be passed later to
+ * usb_ep_enable(), along with some descriptor.
+ *
+ * That second descriptor won't always be the same as the first one.
+ * For example, isochronous endpoints can be autoconfigured for high
+ * bandwidth, and then used in several lower bandwidth altsettings.
+ * Also, high and full speed descriptors will be different.
+ *
+ * Be sure to examine and test the results of autoconfiguration on your
+ * hardware.  This code may not make the best choices about how to use the
+ * USB controller, and it can't know all the restrictions that may apply.
+ * Some combinations of driver and hardware won't be able to autoconfigure.
+ *
+ * On success, this returns an un-claimed usb_ep, and modifies the endpoint
+ * descriptor bEndpointAddress.  For bulk endpoints, the wMaxPacket value
+ * is initialized as if the endpoint were used at full speed.  To prevent
+ * the endpoint from being returned by a later autoconfig call, claim it
+ * by assigning ep->driver_data to some non-null value.
+ *
+ * On failure, this returns a null endpoint descriptor.
+ */
+struct usb_ep *usb_ep_autoconfig(
+	struct usb_gadget		*gadget,
+	struct usb_endpoint_descriptor	*desc
+)
+{
+	return usb_ep_autoconfig_ss(gadget, desc, NULL);
+}
+
+
+/**
+ * usb_ep_autoconfig_reset - reset endpoint autoconfig state
+ * @gadget: device for which autoconfig state will be reset
+ *
+ * Use this for devices where one configuration may need to assign
+ * endpoint resources very differently from the next one.  It clears
+ * state such as ep->driver_data and the record of assigned endpoints
+ * used by usb_ep_autoconfig().
+ */
+void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
+{
+	struct usb_ep	*ep;
+
+	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+		ep->driver_data = NULL;
+	}
+#ifdef	MANY_ENDPOINTS
+	in_epnum = 0;
+#endif
+	epnum = 0;
+}
+
diff --git a/drivers/staging/ccg/f_acm.c b/drivers/staging/ccg/f_acm.c
new file mode 100644
index 00000000000..d672250a61f
--- /dev/null
+++ b/drivers/staging/ccg/f_acm.c
@@ -0,0 +1,814 @@
+/*
+ * f_acm.c -- USB CDC serial (ACM) function driver
+ *
+ * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
+ * Copyright (C) 2008 by David Brownell
+ * Copyright (C) 2008 by Nokia Corporation
+ * Copyright (C) 2009 by Samsung Electronics
+ * Author: Michal Nazarewicz (mina86@mina86.com)
+ *
+ * This software is distributed under the terms of the GNU General
+ * Public License ("GPL") as published by the Free Software Foundation,
+ * either version 2 of that License or (at your option) any later version.
+ */
+
+/* #define VERBOSE_DEBUG */
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+
+#include "u_serial.h"
+#include "gadget_chips.h"
+
+
+/*
+ * This CDC ACM function support just wraps control functions and
+ * notifications around the generic serial-over-usb code.
+ *
+ * Because CDC ACM is standardized by the USB-IF, many host operating
+ * systems have drivers for it.  Accordingly, ACM is the preferred
+ * interop solution for serial-port type connections.  The control
+ * models are often not necessary, and in any case don't do much in
+ * this bare-bones implementation.
+ *
+ * Note that even MS-Windows has some support for ACM.  However, that
+ * support is somewhat broken because when you use ACM in a composite
+ * device, having multiple interfaces confuses the poor OS.  It doesn't
+ * seem to understand CDC Union descriptors.  The new "association"
+ * descriptors (roughly equivalent to CDC Unions) may sometimes help.
+ */
+
+struct f_acm {
+	struct gserial			port;
+	u8				ctrl_id, data_id;
+	u8				port_num;
+
+	u8				pending;
+
+	/* lock is mostly for pending and notify_req ... they get accessed
+	 * by callbacks both from tty (open/close/break) under its spinlock,
+	 * and notify_req.complete() which can't use that lock.
+	 */
+	spinlock_t			lock;
+
+	struct usb_ep			*notify;
+	struct usb_request		*notify_req;
+
+	struct usb_cdc_line_coding	port_line_coding;	/* 8-N-1 etc */
+
+	/* SetControlLineState request -- CDC 1.1 section 6.2.14 (INPUT) */
+	u16				port_handshake_bits;
+#define ACM_CTRL_RTS	(1 << 1)	/* unused with full duplex */
+#define ACM_CTRL_DTR	(1 << 0)	/* host is ready for data r/w */
+
+	/* SerialState notification -- CDC 1.1 section 6.3.5 (OUTPUT) */
+	u16				serial_state;
+#define ACM_CTRL_OVERRUN	(1 << 6)
+#define ACM_CTRL_PARITY		(1 << 5)
+#define ACM_CTRL_FRAMING	(1 << 4)
+#define ACM_CTRL_RI		(1 << 3)
+#define ACM_CTRL_BRK		(1 << 2)
+#define ACM_CTRL_DSR		(1 << 1)
+#define ACM_CTRL_DCD		(1 << 0)
+};
+
+static inline struct f_acm *func_to_acm(struct usb_function *f)
+{
+	return container_of(f, struct f_acm, port.func);
+}
+
+static inline struct f_acm *port_to_acm(struct gserial *p)
+{
+	return container_of(p, struct f_acm, port);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* notification endpoint uses smallish and infrequent fixed-size messages */
+
+#define GS_LOG2_NOTIFY_INTERVAL		5	/* 1 << 5 == 32 msec */
+#define GS_NOTIFY_MAXPACKET		10	/* notification + 2 bytes */
+
+/* interface and class descriptors: */
+
+static struct usb_interface_assoc_descriptor
+acm_iad_descriptor = {
+	.bLength =		sizeof acm_iad_descriptor,
+	.bDescriptorType =	USB_DT_INTERFACE_ASSOCIATION,
+
+	/* .bFirstInterface =	DYNAMIC, */
+	.bInterfaceCount = 	2,	// control + data
+	.bFunctionClass =	USB_CLASS_COMM,
+	.bFunctionSubClass =	USB_CDC_SUBCLASS_ACM,
+	.bFunctionProtocol =	USB_CDC_ACM_PROTO_AT_V25TER,
+	/* .iFunction =		DYNAMIC */
+};
+
+
+static struct usb_interface_descriptor acm_control_interface_desc = {
+	.bLength =		USB_DT_INTERFACE_SIZE,
+	.bDescriptorType =	USB_DT_INTERFACE,
+	/* .bInterfaceNumber = DYNAMIC */
+	.bNumEndpoints =	1,
+	.bInterfaceClass =	USB_CLASS_COMM,
+	.bInterfaceSubClass =	USB_CDC_SUBCLASS_ACM,
+	.bInterfaceProtocol =	USB_CDC_ACM_PROTO_AT_V25TER,
+	/* .iInterface = DYNAMIC */
+};
+
+static struct usb_interface_descriptor acm_data_interface_desc = {
+	.bLength =		USB_DT_INTERFACE_SIZE,
+	.bDescriptorType =	USB_DT_INTERFACE,
+	/* .bInterfaceNumber = DYNAMIC */
+	.bNumEndpoints =	2,
+	.bInterfaceClass =	USB_CLASS_CDC_DATA,
+	.bInterfaceSubClass =	0,
+	.bInterfaceProtocol =	0,
+	/* .iInterface = DYNAMIC */
+};
+
+static struct usb_cdc_header_desc acm_header_desc = {
+	.bLength =		sizeof(acm_header_desc),
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_HEADER_TYPE,
+	.bcdCDC =		cpu_to_le16(0x0110),
+};
+
+static struct usb_cdc_call_mgmt_descriptor
+acm_call_mgmt_descriptor = {
+	.bLength =		sizeof(acm_call_mgmt_descriptor),
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_CALL_MANAGEMENT_TYPE,
+	.bmCapabilities =	0,
+	/* .bDataInterface = DYNAMIC */
+};
+
+static struct usb_cdc_acm_descriptor acm_descriptor = {
+	.bLength =		sizeof(acm_descriptor),
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_ACM_TYPE,
+	.bmCapabilities =	USB_CDC_CAP_LINE,
+};
+
+static struct usb_cdc_union_desc acm_union_desc = {
+	.bLength =		sizeof(acm_union_desc),
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_UNION_TYPE,
+	/* .bMasterInterface0 =	DYNAMIC */
+	/* .bSlaveInterface0 =	DYNAMIC */
+};
+
+/* full speed support: */
+
+static struct usb_endpoint_descriptor acm_fs_notify_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(GS_NOTIFY_MAXPACKET),
+	.bInterval =		1 << GS_LOG2_NOTIFY_INTERVAL,
+};
+
+static struct usb_endpoint_descriptor acm_fs_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_endpoint_descriptor acm_fs_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_descriptor_header *acm_fs_function[] = {
+	(struct usb_descriptor_header *) &acm_iad_descriptor,
+	(struct usb_descriptor_header *) &acm_control_interface_desc,
+	(struct usb_descriptor_header *) &acm_header_desc,
+	(struct usb_descriptor_header *) &acm_call_mgmt_descriptor,
+	(struct usb_descriptor_header *) &acm_descriptor,
+	(struct usb_descriptor_header *) &acm_union_desc,
+	(struct usb_descriptor_header *) &acm_fs_notify_desc,
+	(struct usb_descriptor_header *) &acm_data_interface_desc,
+	(struct usb_descriptor_header *) &acm_fs_in_desc,
+	(struct usb_descriptor_header *) &acm_fs_out_desc,
+	NULL,
+};
+
+/* high speed support: */
+
+static struct usb_endpoint_descriptor acm_hs_notify_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(GS_NOTIFY_MAXPACKET),
+	.bInterval =		GS_LOG2_NOTIFY_INTERVAL+4,
+};
+
+static struct usb_endpoint_descriptor acm_hs_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512),
+};
+
+static struct usb_endpoint_descriptor acm_hs_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512),
+};
+
+static struct usb_descriptor_header *acm_hs_function[] = {
+	(struct usb_descriptor_header *) &acm_iad_descriptor,
+	(struct usb_descriptor_header *) &acm_control_interface_desc,
+	(struct usb_descriptor_header *) &acm_header_desc,
+	(struct usb_descriptor_header *) &acm_call_mgmt_descriptor,
+	(struct usb_descriptor_header *) &acm_descriptor,
+	(struct usb_descriptor_header *) &acm_union_desc,
+	(struct usb_descriptor_header *) &acm_hs_notify_desc,
+	(struct usb_descriptor_header *) &acm_data_interface_desc,
+	(struct usb_descriptor_header *) &acm_hs_in_desc,
+	(struct usb_descriptor_header *) &acm_hs_out_desc,
+	NULL,
+};
+
+static struct usb_endpoint_descriptor acm_ss_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(1024),
+};
+
+static struct usb_endpoint_descriptor acm_ss_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor acm_ss_bulk_comp_desc = {
+	.bLength =              sizeof acm_ss_bulk_comp_desc,
+	.bDescriptorType =      USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_descriptor_header *acm_ss_function[] = {
+	(struct usb_descriptor_header *) &acm_iad_descriptor,
+	(struct usb_descriptor_header *) &acm_control_interface_desc,
+	(struct usb_descriptor_header *) &acm_header_desc,
+	(struct usb_descriptor_header *) &acm_call_mgmt_descriptor,
+	(struct usb_descriptor_header *) &acm_descriptor,
+	(struct usb_descriptor_header *) &acm_union_desc,
+	(struct usb_descriptor_header *) &acm_hs_notify_desc,
+	(struct usb_descriptor_header *) &acm_ss_bulk_comp_desc,
+	(struct usb_descriptor_header *) &acm_data_interface_desc,
+	(struct usb_descriptor_header *) &acm_ss_in_desc,
+	(struct usb_descriptor_header *) &acm_ss_bulk_comp_desc,
+	(struct usb_descriptor_header *) &acm_ss_out_desc,
+	(struct usb_descriptor_header *) &acm_ss_bulk_comp_desc,
+	NULL,
+};
+
+/* string descriptors: */
+
+#define ACM_CTRL_IDX	0
+#define ACM_DATA_IDX	1
+#define ACM_IAD_IDX	2
+
+/* static strings, in UTF-8 */
+static struct usb_string acm_string_defs[] = {
+	[ACM_CTRL_IDX].s = "CDC Abstract Control Model (ACM)",
+	[ACM_DATA_IDX].s = "CDC ACM Data",
+	[ACM_IAD_IDX ].s = "CDC Serial",
+	{  /* ZEROES END LIST */ },
+};
+
+static struct usb_gadget_strings acm_string_table = {
+	.language =		0x0409,	/* en-us */
+	.strings =		acm_string_defs,
+};
+
+static struct usb_gadget_strings *acm_strings[] = {
+	&acm_string_table,
+	NULL,
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* ACM control ... data handling is delegated to tty library code.
+ * The main task of this function is to activate and deactivate
+ * that code based on device state; track parameters like line
+ * speed, handshake state, and so on; and issue notifications.
+ */
+
+static void acm_complete_set_line_coding(struct usb_ep *ep,
+		struct usb_request *req)
+{
+	struct f_acm	*acm = ep->driver_data;
+	struct usb_composite_dev *cdev = acm->port.func.config->cdev;
+
+	if (req->status != 0) {
+		DBG(cdev, "acm ttyGS%d completion, err %d\n",
+				acm->port_num, req->status);
+		return;
+	}
+
+	/* normal completion */
+	if (req->actual != sizeof(acm->port_line_coding)) {
+		DBG(cdev, "acm ttyGS%d short resp, len %d\n",
+				acm->port_num, req->actual);
+		usb_ep_set_halt(ep);
+	} else {
+		struct usb_cdc_line_coding	*value = req->buf;
+
+		/* REVISIT:  we currently just remember this data.
+		 * If we change that, (a) validate it first, then
+		 * (b) update whatever hardware needs updating,
+		 * (c) worry about locking.  This is information on
+		 * the order of 9600-8-N-1 ... most of which means
+		 * nothing unless we control a real RS232 line.
+		 */
+		acm->port_line_coding = *value;
+	}
+}
+
+static int acm_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
+{
+	struct f_acm		*acm = func_to_acm(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+	struct usb_request	*req = cdev->req;
+	int			value = -EOPNOTSUPP;
+	u16			w_index = le16_to_cpu(ctrl->wIndex);
+	u16			w_value = le16_to_cpu(ctrl->wValue);
+	u16			w_length = le16_to_cpu(ctrl->wLength);
+
+	/* composite driver infrastructure handles everything except
+	 * CDC class messages; interface activation uses set_alt().
+	 *
+	 * Note CDC spec table 4 lists the ACM request profile.  It requires
+	 * encapsulated command support ... we don't handle any, and respond
+	 * to them by stalling.  Options include get/set/clear comm features
+	 * (not that useful) and SEND_BREAK.
+	 */
+	switch ((ctrl->bRequestType << 8) | ctrl->bRequest) {
+
+	/* SET_LINE_CODING ... just read and save what the host sends */
+	case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
+			| USB_CDC_REQ_SET_LINE_CODING:
+		if (w_length != sizeof(struct usb_cdc_line_coding)
+				|| w_index != acm->ctrl_id)
+			goto invalid;
+
+		value = w_length;
+		cdev->gadget->ep0->driver_data = acm;
+		req->complete = acm_complete_set_line_coding;
+		break;
+
+	/* GET_LINE_CODING ... return what host sent, or initial value */
+	case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
+			| USB_CDC_REQ_GET_LINE_CODING:
+		if (w_index != acm->ctrl_id)
+			goto invalid;
+
+		value = min_t(unsigned, w_length,
+				sizeof(struct usb_cdc_line_coding));
+		memcpy(req->buf, &acm->port_line_coding, value);
+		break;
+
+	/* SET_CONTROL_LINE_STATE ... save what the host sent */
+	case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
+			| USB_CDC_REQ_SET_CONTROL_LINE_STATE:
+		if (w_index != acm->ctrl_id)
+			goto invalid;
+
+		value = 0;
+
+		/* FIXME we should not allow data to flow until the
+		 * host sets the ACM_CTRL_DTR bit; and when it clears
+		 * that bit, we should return to that no-flow state.
+		 */
+		acm->port_handshake_bits = w_value;
+		break;
+
+	default:
+invalid:
+		VDBG(cdev, "invalid control req%02x.%02x v%04x i%04x l%d\n",
+			ctrl->bRequestType, ctrl->bRequest,
+			w_value, w_index, w_length);
+	}
+
+	/* respond with data transfer or status phase? */
+	if (value >= 0) {
+		DBG(cdev, "acm ttyGS%d req%02x.%02x v%04x i%04x l%d\n",
+			acm->port_num, ctrl->bRequestType, ctrl->bRequest,
+			w_value, w_index, w_length);
+		req->zero = 0;
+		req->length = value;
+		value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+		if (value < 0)
+			ERROR(cdev, "acm response on ttyGS%d, err %d\n",
+					acm->port_num, value);
+	}
+
+	/* device either stalls (value < 0) or reports success */
+	return value;
+}
+
+static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
+{
+	struct f_acm		*acm = func_to_acm(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+
+	/* we know alt == 0, so this is an activation or a reset */
+
+	if (intf == acm->ctrl_id) {
+		if (acm->notify->driver_data) {
+			VDBG(cdev, "reset acm control interface %d\n", intf);
+			usb_ep_disable(acm->notify);
+		} else {
+			VDBG(cdev, "init acm ctrl interface %d\n", intf);
+			if (config_ep_by_speed(cdev->gadget, f, acm->notify))
+				return -EINVAL;
+		}
+		usb_ep_enable(acm->notify);
+		acm->notify->driver_data = acm;
+
+	} else if (intf == acm->data_id) {
+		if (acm->port.in->driver_data) {
+			DBG(cdev, "reset acm ttyGS%d\n", acm->port_num);
+			gserial_disconnect(&acm->port);
+		}
+		if (!acm->port.in->desc || !acm->port.out->desc) {
+			DBG(cdev, "activate acm ttyGS%d\n", acm->port_num);
+			if (config_ep_by_speed(cdev->gadget, f,
+					       acm->port.in) ||
+			    config_ep_by_speed(cdev->gadget, f,
+					       acm->port.out)) {
+				acm->port.in->desc = NULL;
+				acm->port.out->desc = NULL;
+				return -EINVAL;
+			}
+		}
+		gserial_connect(&acm->port, acm->port_num);
+
+	} else
+		return -EINVAL;
+
+	return 0;
+}
+
+static void acm_disable(struct usb_function *f)
+{
+	struct f_acm	*acm = func_to_acm(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+
+	DBG(cdev, "acm ttyGS%d deactivated\n", acm->port_num);
+	gserial_disconnect(&acm->port);
+	usb_ep_disable(acm->notify);
+	acm->notify->driver_data = NULL;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/**
+ * acm_cdc_notify - issue CDC notification to host
+ * @acm: wraps host to be notified
+ * @type: notification type
+ * @value: Refer to cdc specs, wValue field.
+ * @data: data to be sent
+ * @length: size of data
+ * Context: irqs blocked, acm->lock held, acm_notify_req non-null
+ *
+ * Returns zero on success or a negative errno.
+ *
+ * See section 6.3.5 of the CDC 1.1 specification for information
+ * about the only notification we issue:  SerialState change.
+ */
+static int acm_cdc_notify(struct f_acm *acm, u8 type, u16 value,
+		void *data, unsigned length)
+{
+	struct usb_ep			*ep = acm->notify;
+	struct usb_request		*req;
+	struct usb_cdc_notification	*notify;
+	const unsigned			len = sizeof(*notify) + length;
+	void				*buf;
+	int				status;
+
+	req = acm->notify_req;
+	acm->notify_req = NULL;
+	acm->pending = false;
+
+	req->length = len;
+	notify = req->buf;
+	buf = notify + 1;
+
+	notify->bmRequestType = USB_DIR_IN | USB_TYPE_CLASS
+			| USB_RECIP_INTERFACE;
+	notify->bNotificationType = type;
+	notify->wValue = cpu_to_le16(value);
+	notify->wIndex = cpu_to_le16(acm->ctrl_id);
+	notify->wLength = cpu_to_le16(length);
+	memcpy(buf, data, length);
+
+	/* ep_queue() can complete immediately if it fills the fifo... */
+	spin_unlock(&acm->lock);
+	status = usb_ep_queue(ep, req, GFP_ATOMIC);
+	spin_lock(&acm->lock);
+
+	if (status < 0) {
+		ERROR(acm->port.func.config->cdev,
+				"acm ttyGS%d can't notify serial state, %d\n",
+				acm->port_num, status);
+		acm->notify_req = req;
+	}
+
+	return status;
+}
+
+static int acm_notify_serial_state(struct f_acm *acm)
+{
+	struct usb_composite_dev *cdev = acm->port.func.config->cdev;
+	int			status;
+
+	spin_lock(&acm->lock);
+	if (acm->notify_req) {
+		DBG(cdev, "acm ttyGS%d serial state %04x\n",
+				acm->port_num, acm->serial_state);
+		status = acm_cdc_notify(acm, USB_CDC_NOTIFY_SERIAL_STATE,
+				0, &acm->serial_state, sizeof(acm->serial_state));
+	} else {
+		acm->pending = true;
+		status = 0;
+	}
+	spin_unlock(&acm->lock);
+	return status;
+}
+
+static void acm_cdc_notify_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct f_acm		*acm = req->context;
+	u8			doit = false;
+
+	/* on this call path we do NOT hold the port spinlock,
+	 * which is why ACM needs its own spinlock
+	 */
+	spin_lock(&acm->lock);
+	if (req->status != -ESHUTDOWN)
+		doit = acm->pending;
+	acm->notify_req = req;
+	spin_unlock(&acm->lock);
+
+	if (doit)
+		acm_notify_serial_state(acm);
+}
+
+/* connect == the TTY link is open */
+
+static void acm_connect(struct gserial *port)
+{
+	struct f_acm		*acm = port_to_acm(port);
+
+	acm->serial_state |= ACM_CTRL_DSR | ACM_CTRL_DCD;
+	acm_notify_serial_state(acm);
+}
+
+static void acm_disconnect(struct gserial *port)
+{
+	struct f_acm		*acm = port_to_acm(port);
+
+	acm->serial_state &= ~(ACM_CTRL_DSR | ACM_CTRL_DCD);
+	acm_notify_serial_state(acm);
+}
+
+static int acm_send_break(struct gserial *port, int duration)
+{
+	struct f_acm		*acm = port_to_acm(port);
+	u16			state;
+
+	state = acm->serial_state;
+	state &= ~ACM_CTRL_BRK;
+	if (duration)
+		state |= ACM_CTRL_BRK;
+
+	acm->serial_state = state;
+	return acm_notify_serial_state(acm);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* ACM function driver setup/binding */
+static int
+acm_bind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct usb_composite_dev *cdev = c->cdev;
+	struct f_acm		*acm = func_to_acm(f);
+	int			status;
+	struct usb_ep		*ep;
+
+	/* allocate instance-specific interface IDs, and patch descriptors */
+	status = usb_interface_id(c, f);
+	if (status < 0)
+		goto fail;
+	acm->ctrl_id = status;
+	acm_iad_descriptor.bFirstInterface = status;
+
+	acm_control_interface_desc.bInterfaceNumber = status;
+	acm_union_desc .bMasterInterface0 = status;
+
+	status = usb_interface_id(c, f);
+	if (status < 0)
+		goto fail;
+	acm->data_id = status;
+
+	acm_data_interface_desc.bInterfaceNumber = status;
+	acm_union_desc.bSlaveInterface0 = status;
+	acm_call_mgmt_descriptor.bDataInterface = status;
+
+	status = -ENODEV;
+
+	/* allocate instance-specific endpoints */
+	ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_in_desc);
+	if (!ep)
+		goto fail;
+	acm->port.in = ep;
+	ep->driver_data = cdev;	/* claim */
+
+	ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_out_desc);
+	if (!ep)
+		goto fail;
+	acm->port.out = ep;
+	ep->driver_data = cdev;	/* claim */
+
+	ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_notify_desc);
+	if (!ep)
+		goto fail;
+	acm->notify = ep;
+	ep->driver_data = cdev;	/* claim */
+
+	/* allocate notification */
+	acm->notify_req = gs_alloc_req(ep,
+			sizeof(struct usb_cdc_notification) + 2,
+			GFP_KERNEL);
+	if (!acm->notify_req)
+		goto fail;
+
+	acm->notify_req->complete = acm_cdc_notify_complete;
+	acm->notify_req->context = acm;
+
+	/* copy descriptors */
+	f->descriptors = usb_copy_descriptors(acm_fs_function);
+	if (!f->descriptors)
+		goto fail;
+
+	/* support all relevant hardware speeds... we expect that when
+	 * hardware is dual speed, all bulk-capable endpoints work at
+	 * both speeds
+	 */
+	if (gadget_is_dualspeed(c->cdev->gadget)) {
+		acm_hs_in_desc.bEndpointAddress =
+				acm_fs_in_desc.bEndpointAddress;
+		acm_hs_out_desc.bEndpointAddress =
+				acm_fs_out_desc.bEndpointAddress;
+		acm_hs_notify_desc.bEndpointAddress =
+				acm_fs_notify_desc.bEndpointAddress;
+
+		/* copy descriptors */
+		f->hs_descriptors = usb_copy_descriptors(acm_hs_function);
+	}
+	if (gadget_is_superspeed(c->cdev->gadget)) {
+		acm_ss_in_desc.bEndpointAddress =
+			acm_fs_in_desc.bEndpointAddress;
+		acm_ss_out_desc.bEndpointAddress =
+			acm_fs_out_desc.bEndpointAddress;
+
+		/* copy descriptors, and track endpoint copies */
+		f->ss_descriptors = usb_copy_descriptors(acm_ss_function);
+		if (!f->ss_descriptors)
+			goto fail;
+	}
+
+	DBG(cdev, "acm ttyGS%d: %s speed IN/%s OUT/%s NOTIFY/%s\n",
+			acm->port_num,
+			gadget_is_superspeed(c->cdev->gadget) ? "super" :
+			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+			acm->port.in->name, acm->port.out->name,
+			acm->notify->name);
+	return 0;
+
+fail:
+	if (acm->notify_req)
+		gs_free_req(acm->notify, acm->notify_req);
+
+	/* we might as well release our claims on endpoints */
+	if (acm->notify)
+		acm->notify->driver_data = NULL;
+	if (acm->port.out)
+		acm->port.out->driver_data = NULL;
+	if (acm->port.in)
+		acm->port.in->driver_data = NULL;
+
+	ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status);
+
+	return status;
+}
+
+static void
+acm_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct f_acm		*acm = func_to_acm(f);
+
+	if (gadget_is_dualspeed(c->cdev->gadget))
+		usb_free_descriptors(f->hs_descriptors);
+	if (gadget_is_superspeed(c->cdev->gadget))
+		usb_free_descriptors(f->ss_descriptors);
+	usb_free_descriptors(f->descriptors);
+	gs_free_req(acm->notify, acm->notify_req);
+	kfree(acm);
+}
+
+/* Some controllers can't support CDC ACM ... */
+static inline bool can_support_cdc(struct usb_configuration *c)
+{
+	/* everything else is *probably* fine ... */
+	return true;
+}
+
+/**
+ * acm_bind_config - add a CDC ACM function to a configuration
+ * @c: the configuration to support the CDC ACM instance
+ * @port_num: /dev/ttyGS* port this interface will use
+ * Context: single threaded during gadget setup
+ *
+ * Returns zero on success, else negative errno.
+ *
+ * Caller must have called @gserial_setup() with enough ports to
+ * handle all the ones it binds.  Caller is also responsible
+ * for calling @gserial_cleanup() before module unload.
+ */
+int acm_bind_config(struct usb_configuration *c, u8 port_num)
+{
+	struct f_acm	*acm;
+	int		status;
+
+	if (!can_support_cdc(c))
+		return -EINVAL;
+
+	/* REVISIT might want instance-specific strings to help
+	 * distinguish instances ...
+	 */
+
+	/* maybe allocate device-global string IDs, and patch descriptors */
+	if (acm_string_defs[ACM_CTRL_IDX].id == 0) {
+		status = usb_string_id(c->cdev);
+		if (status < 0)
+			return status;
+		acm_string_defs[ACM_CTRL_IDX].id = status;
+
+		acm_control_interface_desc.iInterface = status;
+
+		status = usb_string_id(c->cdev);
+		if (status < 0)
+			return status;
+		acm_string_defs[ACM_DATA_IDX].id = status;
+
+		acm_data_interface_desc.iInterface = status;
+
+		status = usb_string_id(c->cdev);
+		if (status < 0)
+			return status;
+		acm_string_defs[ACM_IAD_IDX].id = status;
+
+		acm_iad_descriptor.iFunction = status;
+	}
+
+	/* allocate and initialize one new instance */
+	acm = kzalloc(sizeof *acm, GFP_KERNEL);
+	if (!acm)
+		return -ENOMEM;
+
+	spin_lock_init(&acm->lock);
+
+	acm->port_num = port_num;
+
+	acm->port.connect = acm_connect;
+	acm->port.disconnect = acm_disconnect;
+	acm->port.send_break = acm_send_break;
+
+	acm->port.func.name = "acm";
+	acm->port.func.strings = acm_strings;
+	/* descriptors are per-instance copies */
+	acm->port.func.bind = acm_bind;
+	acm->port.func.unbind = acm_unbind;
+	acm->port.func.set_alt = acm_set_alt;
+	acm->port.func.setup = acm_setup;
+	acm->port.func.disable = acm_disable;
+
+	status = usb_add_function(c, &acm->port.func);
+	if (status)
+		kfree(acm);
+	return status;
+}
diff --git a/drivers/staging/ccg/f_fs.c b/drivers/staging/ccg/f_fs.c
new file mode 100644
index 00000000000..8adc79d1b40
--- /dev/null
+++ b/drivers/staging/ccg/f_fs.c
@@ -0,0 +1,2455 @@
+/*
+ * f_fs.c -- user mode file system API for USB composite function controllers
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ * Author: Michal Nazarewicz <mina86@mina86.com>
+ *
+ * Based on inode.c (GadgetFS) which was:
+ * Copyright (C) 2003-2004 David Brownell
+ * Copyright (C) 2003 Agilent Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+
+/* #define DEBUG */
+/* #define VERBOSE_DEBUG */
+
+#include <linux/blkdev.h>
+#include <linux/pagemap.h>
+#include <linux/export.h>
+#include <linux/hid.h>
+#include <asm/unaligned.h>
+
+#include <linux/usb/composite.h>
+#include <linux/usb/functionfs.h>
+
+
+#define FUNCTIONFS_MAGIC	0xa647361 /* Chosen by a honest dice roll ;) */
+
+
+/* Debugging ****************************************************************/
+
+#ifdef VERBOSE_DEBUG
+#  define pr_vdebug pr_debug
+#  define ffs_dump_mem(prefix, ptr, len) \
+	print_hex_dump_bytes(pr_fmt(prefix ": "), DUMP_PREFIX_NONE, ptr, len)
+#else
+#  define pr_vdebug(...)                 do { } while (0)
+#  define ffs_dump_mem(prefix, ptr, len) do { } while (0)
+#endif /* VERBOSE_DEBUG */
+
+#define ENTER()    pr_vdebug("%s()\n", __func__)
+
+
+/* The data structure and setup file ****************************************/
+
+enum ffs_state {
+	/*
+	 * Waiting for descriptors and strings.
+	 *
+	 * In this state no open(2), read(2) or write(2) on epfiles
+	 * may succeed (which should not be the problem as there
+	 * should be no such files opened in the first place).
+	 */
+	FFS_READ_DESCRIPTORS,
+	FFS_READ_STRINGS,
+
+	/*
+	 * We've got descriptors and strings.  We are or have called
+	 * functionfs_ready_callback().  functionfs_bind() may have
+	 * been called but we don't know.
+	 *
+	 * This is the only state in which operations on epfiles may
+	 * succeed.
+	 */
+	FFS_ACTIVE,
+
+	/*
+	 * All endpoints have been closed.  This state is also set if
+	 * we encounter an unrecoverable error.  The only
+	 * unrecoverable error is situation when after reading strings
+	 * from user space we fail to initialise epfiles or
+	 * functionfs_ready_callback() returns with error (<0).
+	 *
+	 * In this state no open(2), read(2) or write(2) (both on ep0
+	 * as well as epfile) may succeed (at this point epfiles are
+	 * unlinked and all closed so this is not a problem; ep0 is
+	 * also closed but ep0 file exists and so open(2) on ep0 must
+	 * fail).
+	 */
+	FFS_CLOSING
+};
+
+
+enum ffs_setup_state {
+	/* There is no setup request pending. */
+	FFS_NO_SETUP,
+	/*
+	 * User has read events and there was a setup request event
+	 * there.  The next read/write on ep0 will handle the
+	 * request.
+	 */
+	FFS_SETUP_PENDING,
+	/*
+	 * There was event pending but before user space handled it
+	 * some other event was introduced which canceled existing
+	 * setup.  If this state is set read/write on ep0 return
+	 * -EIDRM.  This state is only set when adding event.
+	 */
+	FFS_SETUP_CANCELED
+};
+
+
+
+struct ffs_epfile;
+struct ffs_function;
+
+struct ffs_data {
+	struct usb_gadget		*gadget;
+
+	/*
+	 * Protect access read/write operations, only one read/write
+	 * at a time.  As a consequence protects ep0req and company.
+	 * While setup request is being processed (queued) this is
+	 * held.
+	 */
+	struct mutex			mutex;
+
+	/*
+	 * Protect access to endpoint related structures (basically
+	 * usb_ep_queue(), usb_ep_dequeue(), etc. calls) except for
+	 * endpoint zero.
+	 */
+	spinlock_t			eps_lock;
+
+	/*
+	 * XXX REVISIT do we need our own request? Since we are not
+	 * handling setup requests immediately user space may be so
+	 * slow that another setup will be sent to the gadget but this
+	 * time not to us but another function and then there could be
+	 * a race.  Is that the case? Or maybe we can use cdev->req
+	 * after all, maybe we just need some spinlock for that?
+	 */
+	struct usb_request		*ep0req;		/* P: mutex */
+	struct completion		ep0req_completion;	/* P: mutex */
+	int				ep0req_status;		/* P: mutex */
+
+	/* reference counter */
+	atomic_t			ref;
+	/* how many files are opened (EP0 and others) */
+	atomic_t			opened;
+
+	/* EP0 state */
+	enum ffs_state			state;
+
+	/*
+	 * Possible transitions:
+	 * + FFS_NO_SETUP       -> FFS_SETUP_PENDING  -- P: ev.waitq.lock
+	 *               happens only in ep0 read which is P: mutex
+	 * + FFS_SETUP_PENDING  -> FFS_NO_SETUP       -- P: ev.waitq.lock
+	 *               happens only in ep0 i/o  which is P: mutex
+	 * + FFS_SETUP_PENDING  -> FFS_SETUP_CANCELED -- P: ev.waitq.lock
+	 * + FFS_SETUP_CANCELED -> FFS_NO_SETUP       -- cmpxchg
+	 */
+	enum ffs_setup_state		setup_state;
+
+#define FFS_SETUP_STATE(ffs)					\
+	((enum ffs_setup_state)cmpxchg(&(ffs)->setup_state,	\
+				       FFS_SETUP_CANCELED, FFS_NO_SETUP))
+
+	/* Events & such. */
+	struct {
+		u8				types[4];
+		unsigned short			count;
+		/* XXX REVISIT need to update it in some places, or do we? */
+		unsigned short			can_stall;
+		struct usb_ctrlrequest		setup;
+
+		wait_queue_head_t		waitq;
+	} ev; /* the whole structure, P: ev.waitq.lock */
+
+	/* Flags */
+	unsigned long			flags;
+#define FFS_FL_CALL_CLOSED_CALLBACK 0
+#define FFS_FL_BOUND                1
+
+	/* Active function */
+	struct ffs_function		*func;
+
+	/*
+	 * Device name, write once when file system is mounted.
+	 * Intended for user to read if she wants.
+	 */
+	const char			*dev_name;
+	/* Private data for our user (ie. gadget).  Managed by user. */
+	void				*private_data;
+
+	/* filled by __ffs_data_got_descs() */
+	/*
+	 * Real descriptors are 16 bytes after raw_descs (so you need
+	 * to skip 16 bytes (ie. ffs->raw_descs + 16) to get to the
+	 * first full speed descriptor).  raw_descs_length and
+	 * raw_fs_descs_length do not have those 16 bytes added.
+	 */
+	const void			*raw_descs;
+	unsigned			raw_descs_length;
+	unsigned			raw_fs_descs_length;
+	unsigned			fs_descs_count;
+	unsigned			hs_descs_count;
+
+	unsigned short			strings_count;
+	unsigned short			interfaces_count;
+	unsigned short			eps_count;
+	unsigned short			_pad1;
+
+	/* filled by __ffs_data_got_strings() */
+	/* ids in stringtabs are set in functionfs_bind() */
+	const void			*raw_strings;
+	struct usb_gadget_strings	**stringtabs;
+
+	/*
+	 * File system's super block, write once when file system is
+	 * mounted.
+	 */
+	struct super_block		*sb;
+
+	/* File permissions, written once when fs is mounted */
+	struct ffs_file_perms {
+		umode_t				mode;
+		uid_t				uid;
+		gid_t				gid;
+	}				file_perms;
+
+	/*
+	 * The endpoint files, filled by ffs_epfiles_create(),
+	 * destroyed by ffs_epfiles_destroy().
+	 */
+	struct ffs_epfile		*epfiles;
+};
+
+/* Reference counter handling */
+static void ffs_data_get(struct ffs_data *ffs);
+static void ffs_data_put(struct ffs_data *ffs);
+/* Creates new ffs_data object. */
+static struct ffs_data *__must_check ffs_data_new(void) __attribute__((malloc));
+
+/* Opened counter handling. */
+static void ffs_data_opened(struct ffs_data *ffs);
+static void ffs_data_closed(struct ffs_data *ffs);
+
+/* Called with ffs->mutex held; take over ownership of data. */
+static int __must_check
+__ffs_data_got_descs(struct ffs_data *ffs, char *data, size_t len);
+static int __must_check
+__ffs_data_got_strings(struct ffs_data *ffs, char *data, size_t len);
+
+
+/* The function structure ***************************************************/
+
+struct ffs_ep;
+
+struct ffs_function {
+	struct usb_configuration	*conf;
+	struct usb_gadget		*gadget;
+	struct ffs_data			*ffs;
+
+	struct ffs_ep			*eps;
+	u8				eps_revmap[16];
+	short				*interfaces_nums;
+
+	struct usb_function		function;
+};
+
+
+static struct ffs_function *ffs_func_from_usb(struct usb_function *f)
+{
+	return container_of(f, struct ffs_function, function);
+}
+
+static void ffs_func_free(struct ffs_function *func);
+
+static void ffs_func_eps_disable(struct ffs_function *func);
+static int __must_check ffs_func_eps_enable(struct ffs_function *func);
+
+static int ffs_func_bind(struct usb_configuration *,
+			 struct usb_function *);
+static void ffs_func_unbind(struct usb_configuration *,
+			    struct usb_function *);
+static int ffs_func_set_alt(struct usb_function *, unsigned, unsigned);
+static void ffs_func_disable(struct usb_function *);
+static int ffs_func_setup(struct usb_function *,
+			  const struct usb_ctrlrequest *);
+static void ffs_func_suspend(struct usb_function *);
+static void ffs_func_resume(struct usb_function *);
+
+
+static int ffs_func_revmap_ep(struct ffs_function *func, u8 num);
+static int ffs_func_revmap_intf(struct ffs_function *func, u8 intf);
+
+
+/* The endpoints structures *************************************************/
+
+struct ffs_ep {
+	struct usb_ep			*ep;	/* P: ffs->eps_lock */
+	struct usb_request		*req;	/* P: epfile->mutex */
+
+	/* [0]: full speed, [1]: high speed */
+	struct usb_endpoint_descriptor	*descs[2];
+
+	u8				num;
+
+	int				status;	/* P: epfile->mutex */
+};
+
+struct ffs_epfile {
+	/* Protects ep->ep and ep->req. */
+	struct mutex			mutex;
+	wait_queue_head_t		wait;
+
+	struct ffs_data			*ffs;
+	struct ffs_ep			*ep;	/* P: ffs->eps_lock */
+
+	struct dentry			*dentry;
+
+	char				name[5];
+
+	unsigned char			in;	/* P: ffs->eps_lock */
+	unsigned char			isoc;	/* P: ffs->eps_lock */
+
+	unsigned char			_pad;
+};
+
+static int  __must_check ffs_epfiles_create(struct ffs_data *ffs);
+static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count);
+
+static struct inode *__must_check
+ffs_sb_create_file(struct super_block *sb, const char *name, void *data,
+		   const struct file_operations *fops,
+		   struct dentry **dentry_p);
+
+
+/* Misc helper functions ****************************************************/
+
+static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
+	__attribute__((warn_unused_result, nonnull));
+static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+	__attribute__((warn_unused_result, nonnull));
+
+
+/* Control file aka ep0 *****************************************************/
+
+static void ffs_ep0_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct ffs_data *ffs = req->context;
+
+	complete_all(&ffs->ep0req_completion);
+}
+
+static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)
+{
+	struct usb_request *req = ffs->ep0req;
+	int ret;
+
+	req->zero     = len < le16_to_cpu(ffs->ev.setup.wLength);
+
+	spin_unlock_irq(&ffs->ev.waitq.lock);
+
+	req->buf      = data;
+	req->length   = len;
+
+	/*
+	 * UDC layer requires to provide a buffer even for ZLP, but should
+	 * not use it at all. Let's provide some poisoned pointer to catch
+	 * possible bug in the driver.
+	 */
+	if (req->buf == NULL)
+		req->buf = (void *)0xDEADBABE;
+
+	INIT_COMPLETION(ffs->ep0req_completion);
+
+	ret = usb_ep_queue(ffs->gadget->ep0, req, GFP_ATOMIC);
+	if (unlikely(ret < 0))
+		return ret;
+
+	ret = wait_for_completion_interruptible(&ffs->ep0req_completion);
+	if (unlikely(ret)) {
+		usb_ep_dequeue(ffs->gadget->ep0, req);
+		return -EINTR;
+	}
+
+	ffs->setup_state = FFS_NO_SETUP;
+	return ffs->ep0req_status;
+}
+
+static int __ffs_ep0_stall(struct ffs_data *ffs)
+{
+	if (ffs->ev.can_stall) {
+		pr_vdebug("ep0 stall\n");
+		usb_ep_set_halt(ffs->gadget->ep0);
+		ffs->setup_state = FFS_NO_SETUP;
+		return -EL2HLT;
+	} else {
+		pr_debug("bogus ep0 stall!\n");
+		return -ESRCH;
+	}
+}
+
+static ssize_t ffs_ep0_write(struct file *file, const char __user *buf,
+			     size_t len, loff_t *ptr)
+{
+	struct ffs_data *ffs = file->private_data;
+	ssize_t ret;
+	char *data;
+
+	ENTER();
+
+	/* Fast check if setup was canceled */
+	if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED)
+		return -EIDRM;
+
+	/* Acquire mutex */
+	ret = ffs_mutex_lock(&ffs->mutex, file->f_flags & O_NONBLOCK);
+	if (unlikely(ret < 0))
+		return ret;
+
+	/* Check state */
+	switch (ffs->state) {
+	case FFS_READ_DESCRIPTORS:
+	case FFS_READ_STRINGS:
+		/* Copy data */
+		if (unlikely(len < 16)) {
+			ret = -EINVAL;
+			break;
+		}
+
+		data = ffs_prepare_buffer(buf, len);
+		if (IS_ERR(data)) {
+			ret = PTR_ERR(data);
+			break;
+		}
+
+		/* Handle data */
+		if (ffs->state == FFS_READ_DESCRIPTORS) {
+			pr_info("read descriptors\n");
+			ret = __ffs_data_got_descs(ffs, data, len);
+			if (unlikely(ret < 0))
+				break;
+
+			ffs->state = FFS_READ_STRINGS;
+			ret = len;
+		} else {
+			pr_info("read strings\n");
+			ret = __ffs_data_got_strings(ffs, data, len);
+			if (unlikely(ret < 0))
+				break;
+
+			ret = ffs_epfiles_create(ffs);
+			if (unlikely(ret)) {
+				ffs->state = FFS_CLOSING;
+				break;
+			}
+
+			ffs->state = FFS_ACTIVE;
+			mutex_unlock(&ffs->mutex);
+
+			ret = functionfs_ready_callback(ffs);
+			if (unlikely(ret < 0)) {
+				ffs->state = FFS_CLOSING;
+				return ret;
+			}
+
+			set_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags);
+			return len;
+		}
+		break;
+
+	case FFS_ACTIVE:
+		data = NULL;
+		/*
+		 * We're called from user space, we can use _irq
+		 * rather then _irqsave
+		 */
+		spin_lock_irq(&ffs->ev.waitq.lock);
+		switch (FFS_SETUP_STATE(ffs)) {
+		case FFS_SETUP_CANCELED:
+			ret = -EIDRM;
+			goto done_spin;
+
+		case FFS_NO_SETUP:
+			ret = -ESRCH;
+			goto done_spin;
+
+		case FFS_SETUP_PENDING:
+			break;
+		}
+
+		/* FFS_SETUP_PENDING */
+		if (!(ffs->ev.setup.bRequestType & USB_DIR_IN)) {
+			spin_unlock_irq(&ffs->ev.waitq.lock);
+			ret = __ffs_ep0_stall(ffs);
+			break;
+		}
+
+		/* FFS_SETUP_PENDING and not stall */
+		len = min(len, (size_t)le16_to_cpu(ffs->ev.setup.wLength));
+
+		spin_unlock_irq(&ffs->ev.waitq.lock);
+
+		data = ffs_prepare_buffer(buf, len);
+		if (IS_ERR(data)) {
+			ret = PTR_ERR(data);
+			break;
+		}
+
+		spin_lock_irq(&ffs->ev.waitq.lock);
+
+		/*
+		 * We are guaranteed to be still in FFS_ACTIVE state
+		 * but the state of setup could have changed from
+		 * FFS_SETUP_PENDING to FFS_SETUP_CANCELED so we need
+		 * to check for that.  If that happened we copied data
+		 * from user space in vain but it's unlikely.
+		 *
+		 * For sure we are not in FFS_NO_SETUP since this is
+		 * the only place FFS_SETUP_PENDING -> FFS_NO_SETUP
+		 * transition can be performed and it's protected by
+		 * mutex.
+		 */
+		if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED) {
+			ret = -EIDRM;
+done_spin:
+			spin_unlock_irq(&ffs->ev.waitq.lock);
+		} else {
+			/* unlocks spinlock */
+			ret = __ffs_ep0_queue_wait(ffs, data, len);
+		}
+		kfree(data);
+		break;
+
+	default:
+		ret = -EBADFD;
+		break;
+	}
+
+	mutex_unlock(&ffs->mutex);
+	return ret;
+}
+
+static ssize_t __ffs_ep0_read_events(struct ffs_data *ffs, char __user *buf,
+				     size_t n)
+{
+	/*
+	 * We are holding ffs->ev.waitq.lock and ffs->mutex and we need
+	 * to release them.
+	 */
+	struct usb_functionfs_event events[n];
+	unsigned i = 0;
+
+	memset(events, 0, sizeof events);
+
+	do {
+		events[i].type = ffs->ev.types[i];
+		if (events[i].type == FUNCTIONFS_SETUP) {
+			events[i].u.setup = ffs->ev.setup;
+			ffs->setup_state = FFS_SETUP_PENDING;
+		}
+	} while (++i < n);
+
+	if (n < ffs->ev.count) {
+		ffs->ev.count -= n;
+		memmove(ffs->ev.types, ffs->ev.types + n,
+			ffs->ev.count * sizeof *ffs->ev.types);
+	} else {
+		ffs->ev.count = 0;
+	}
+
+	spin_unlock_irq(&ffs->ev.waitq.lock);
+	mutex_unlock(&ffs->mutex);
+
+	return unlikely(__copy_to_user(buf, events, sizeof events))
+		? -EFAULT : sizeof events;
+}
+
+static ssize_t ffs_ep0_read(struct file *file, char __user *buf,
+			    size_t len, loff_t *ptr)
+{
+	struct ffs_data *ffs = file->private_data;
+	char *data = NULL;
+	size_t n;
+	int ret;
+
+	ENTER();
+
+	/* Fast check if setup was canceled */
+	if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED)
+		return -EIDRM;
+
+	/* Acquire mutex */
+	ret = ffs_mutex_lock(&ffs->mutex, file->f_flags & O_NONBLOCK);
+	if (unlikely(ret < 0))
+		return ret;
+
+	/* Check state */
+	if (ffs->state != FFS_ACTIVE) {
+		ret = -EBADFD;
+		goto done_mutex;
+	}
+
+	/*
+	 * We're called from user space, we can use _irq rather then
+	 * _irqsave
+	 */
+	spin_lock_irq(&ffs->ev.waitq.lock);
+
+	switch (FFS_SETUP_STATE(ffs)) {
+	case FFS_SETUP_CANCELED:
+		ret = -EIDRM;
+		break;
+
+	case FFS_NO_SETUP:
+		n = len / sizeof(struct usb_functionfs_event);
+		if (unlikely(!n)) {
+			ret = -EINVAL;
+			break;
+		}
+
+		if ((file->f_flags & O_NONBLOCK) && !ffs->ev.count) {
+			ret = -EAGAIN;
+			break;
+		}
+
+		if (wait_event_interruptible_exclusive_locked_irq(ffs->ev.waitq,
+							ffs->ev.count)) {
+			ret = -EINTR;
+			break;
+		}
+
+		return __ffs_ep0_read_events(ffs, buf,
+					     min(n, (size_t)ffs->ev.count));
+
+	case FFS_SETUP_PENDING:
+		if (ffs->ev.setup.bRequestType & USB_DIR_IN) {
+			spin_unlock_irq(&ffs->ev.waitq.lock);
+			ret = __ffs_ep0_stall(ffs);
+			goto done_mutex;
+		}
+
+		len = min(len, (size_t)le16_to_cpu(ffs->ev.setup.wLength));
+
+		spin_unlock_irq(&ffs->ev.waitq.lock);
+
+		if (likely(len)) {
+			data = kmalloc(len, GFP_KERNEL);
+			if (unlikely(!data)) {
+				ret = -ENOMEM;
+				goto done_mutex;
+			}
+		}
+
+		spin_lock_irq(&ffs->ev.waitq.lock);
+
+		/* See ffs_ep0_write() */
+		if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED) {
+			ret = -EIDRM;
+			break;
+		}
+
+		/* unlocks spinlock */
+		ret = __ffs_ep0_queue_wait(ffs, data, len);
+		if (likely(ret > 0) && unlikely(__copy_to_user(buf, data, len)))
+			ret = -EFAULT;
+		goto done_mutex;
+
+	default:
+		ret = -EBADFD;
+		break;
+	}
+
+	spin_unlock_irq(&ffs->ev.waitq.lock);
+done_mutex:
+	mutex_unlock(&ffs->mutex);
+	kfree(data);
+	return ret;
+}
+
+static int ffs_ep0_open(struct inode *inode, struct file *file)
+{
+	struct ffs_data *ffs = inode->i_private;
+
+	ENTER();
+
+	if (unlikely(ffs->state == FFS_CLOSING))
+		return -EBUSY;
+
+	file->private_data = ffs;
+	ffs_data_opened(ffs);
+
+	return 0;
+}
+
+static int ffs_ep0_release(struct inode *inode, struct file *file)
+{
+	struct ffs_data *ffs = file->private_data;
+
+	ENTER();
+
+	ffs_data_closed(ffs);
+
+	return 0;
+}
+
+static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value)
+{
+	struct ffs_data *ffs = file->private_data;
+	struct usb_gadget *gadget = ffs->gadget;
+	long ret;
+
+	ENTER();
+
+	if (code == FUNCTIONFS_INTERFACE_REVMAP) {
+		struct ffs_function *func = ffs->func;
+		ret = func ? ffs_func_revmap_intf(func, value) : -ENODEV;
+	} else if (gadget && gadget->ops->ioctl) {
+		ret = gadget->ops->ioctl(gadget, code, value);
+	} else {
+		ret = -ENOTTY;
+	}
+
+	return ret;
+}
+
+static const struct file_operations ffs_ep0_operations = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+
+	.open =		ffs_ep0_open,
+	.write =	ffs_ep0_write,
+	.read =		ffs_ep0_read,
+	.release =	ffs_ep0_release,
+	.unlocked_ioctl =	ffs_ep0_ioctl,
+};
+
+
+/* "Normal" endpoints operations ********************************************/
+
+static void ffs_epfile_io_complete(struct usb_ep *_ep, struct usb_request *req)
+{
+	ENTER();
+	if (likely(req->context)) {
+		struct ffs_ep *ep = _ep->driver_data;
+		ep->status = req->status ? req->status : req->actual;
+		complete(req->context);
+	}
+}
+
+static ssize_t ffs_epfile_io(struct file *file,
+			     char __user *buf, size_t len, int read)
+{
+	struct ffs_epfile *epfile = file->private_data;
+	struct ffs_ep *ep;
+	char *data = NULL;
+	ssize_t ret;
+	int halt;
+
+	goto first_try;
+	do {
+		spin_unlock_irq(&epfile->ffs->eps_lock);
+		mutex_unlock(&epfile->mutex);
+
+first_try:
+		/* Are we still active? */
+		if (WARN_ON(epfile->ffs->state != FFS_ACTIVE)) {
+			ret = -ENODEV;
+			goto error;
+		}
+
+		/* Wait for endpoint to be enabled */
+		ep = epfile->ep;
+		if (!ep) {
+			if (file->f_flags & O_NONBLOCK) {
+				ret = -EAGAIN;
+				goto error;
+			}
+
+			if (wait_event_interruptible(epfile->wait,
+						     (ep = epfile->ep))) {
+				ret = -EINTR;
+				goto error;
+			}
+		}
+
+		/* Do we halt? */
+		halt = !read == !epfile->in;
+		if (halt && epfile->isoc) {
+			ret = -EINVAL;
+			goto error;
+		}
+
+		/* Allocate & copy */
+		if (!halt && !data) {
+			data = kzalloc(len, GFP_KERNEL);
+			if (unlikely(!data))
+				return -ENOMEM;
+
+			if (!read &&
+			    unlikely(__copy_from_user(data, buf, len))) {
+				ret = -EFAULT;
+				goto error;
+			}
+		}
+
+		/* We will be using request */
+		ret = ffs_mutex_lock(&epfile->mutex,
+				     file->f_flags & O_NONBLOCK);
+		if (unlikely(ret))
+			goto error;
+
+		/*
+		 * We're called from user space, we can use _irq rather then
+		 * _irqsave
+		 */
+		spin_lock_irq(&epfile->ffs->eps_lock);
+
+		/*
+		 * While we were acquiring mutex endpoint got disabled
+		 * or changed?
+		 */
+	} while (unlikely(epfile->ep != ep));
+
+	/* Halt */
+	if (unlikely(halt)) {
+		if (likely(epfile->ep == ep) && !WARN_ON(!ep->ep))
+			usb_ep_set_halt(ep->ep);
+		spin_unlock_irq(&epfile->ffs->eps_lock);
+		ret = -EBADMSG;
+	} else {
+		/* Fire the request */
+		DECLARE_COMPLETION_ONSTACK(done);
+
+		struct usb_request *req = ep->req;
+		req->context  = &done;
+		req->complete = ffs_epfile_io_complete;
+		req->buf      = data;
+		req->length   = len;
+
+		ret = usb_ep_queue(ep->ep, req, GFP_ATOMIC);
+
+		spin_unlock_irq(&epfile->ffs->eps_lock);
+
+		if (unlikely(ret < 0)) {
+			/* nop */
+		} else if (unlikely(wait_for_completion_interruptible(&done))) {
+			ret = -EINTR;
+			usb_ep_dequeue(ep->ep, req);
+		} else {
+			ret = ep->status;
+			if (read && ret > 0 &&
+			    unlikely(copy_to_user(buf, data, ret)))
+				ret = -EFAULT;
+		}
+	}
+
+	mutex_unlock(&epfile->mutex);
+error:
+	kfree(data);
+	return ret;
+}
+
+static ssize_t
+ffs_epfile_write(struct file *file, const char __user *buf, size_t len,
+		 loff_t *ptr)
+{
+	ENTER();
+
+	return ffs_epfile_io(file, (char __user *)buf, len, 0);
+}
+
+static ssize_t
+ffs_epfile_read(struct file *file, char __user *buf, size_t len, loff_t *ptr)
+{
+	ENTER();
+
+	return ffs_epfile_io(file, buf, len, 1);
+}
+
+static int
+ffs_epfile_open(struct inode *inode, struct file *file)
+{
+	struct ffs_epfile *epfile = inode->i_private;
+
+	ENTER();
+
+	if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))
+		return -ENODEV;
+
+	file->private_data = epfile;
+	ffs_data_opened(epfile->ffs);
+
+	return 0;
+}
+
+static int
+ffs_epfile_release(struct inode *inode, struct file *file)
+{
+	struct ffs_epfile *epfile = inode->i_private;
+
+	ENTER();
+
+	ffs_data_closed(epfile->ffs);
+
+	return 0;
+}
+
+static long ffs_epfile_ioctl(struct file *file, unsigned code,
+			     unsigned long value)
+{
+	struct ffs_epfile *epfile = file->private_data;
+	int ret;
+
+	ENTER();
+
+	if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))
+		return -ENODEV;
+
+	spin_lock_irq(&epfile->ffs->eps_lock);
+	if (likely(epfile->ep)) {
+		switch (code) {
+		case FUNCTIONFS_FIFO_STATUS:
+			ret = usb_ep_fifo_status(epfile->ep->ep);
+			break;
+		case FUNCTIONFS_FIFO_FLUSH:
+			usb_ep_fifo_flush(epfile->ep->ep);
+			ret = 0;
+			break;
+		case FUNCTIONFS_CLEAR_HALT:
+			ret = usb_ep_clear_halt(epfile->ep->ep);
+			break;
+		case FUNCTIONFS_ENDPOINT_REVMAP:
+			ret = epfile->ep->num;
+			break;
+		default:
+			ret = -ENOTTY;
+		}
+	} else {
+		ret = -ENODEV;
+	}
+	spin_unlock_irq(&epfile->ffs->eps_lock);
+
+	return ret;
+}
+
+static const struct file_operations ffs_epfile_operations = {
+	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+
+	.open =		ffs_epfile_open,
+	.write =	ffs_epfile_write,
+	.read =		ffs_epfile_read,
+	.release =	ffs_epfile_release,
+	.unlocked_ioctl =	ffs_epfile_ioctl,
+};
+
+
+/* File system and super block operations ***********************************/
+
+/*
+ * Mounting the file system creates a controller file, used first for
+ * function configuration then later for event monitoring.
+ */
+
+static struct inode *__must_check
+ffs_sb_make_inode(struct super_block *sb, void *data,
+		  const struct file_operations *fops,
+		  const struct inode_operations *iops,
+		  struct ffs_file_perms *perms)
+{
+	struct inode *inode;
+
+	ENTER();
+
+	inode = new_inode(sb);
+
+	if (likely(inode)) {
+		struct timespec current_time = CURRENT_TIME;
+
+		inode->i_ino	 = get_next_ino();
+		inode->i_mode    = perms->mode;
+		inode->i_uid     = perms->uid;
+		inode->i_gid     = perms->gid;
+		inode->i_atime   = current_time;
+		inode->i_mtime   = current_time;
+		inode->i_ctime   = current_time;
+		inode->i_private = data;
+		if (fops)
+			inode->i_fop = fops;
+		if (iops)
+			inode->i_op  = iops;
+	}
+
+	return inode;
+}
+
+/* Create "regular" file */
+static struct inode *ffs_sb_create_file(struct super_block *sb,
+					const char *name, void *data,
+					const struct file_operations *fops,
+					struct dentry **dentry_p)
+{
+	struct ffs_data	*ffs = sb->s_fs_info;
+	struct dentry	*dentry;
+	struct inode	*inode;
+
+	ENTER();
+
+	dentry = d_alloc_name(sb->s_root, name);
+	if (unlikely(!dentry))
+		return NULL;
+
+	inode = ffs_sb_make_inode(sb, data, fops, NULL, &ffs->file_perms);
+	if (unlikely(!inode)) {
+		dput(dentry);
+		return NULL;
+	}
+
+	d_add(dentry, inode);
+	if (dentry_p)
+		*dentry_p = dentry;
+
+	return inode;
+}
+
+/* Super block */
+static const struct super_operations ffs_sb_operations = {
+	.statfs =	simple_statfs,
+	.drop_inode =	generic_delete_inode,
+};
+
+struct ffs_sb_fill_data {
+	struct ffs_file_perms perms;
+	umode_t root_mode;
+	const char *dev_name;
+	union {
+		/* set by ffs_fs_mount(), read by ffs_sb_fill() */
+		void *private_data;
+		/* set by ffs_sb_fill(), read by ffs_fs_mount */
+		struct ffs_data *ffs_data;
+	};
+};
+
+static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
+{
+	struct ffs_sb_fill_data *data = _data;
+	struct inode	*inode;
+	struct ffs_data	*ffs;
+
+	ENTER();
+
+	/* Initialise data */
+	ffs = ffs_data_new();
+	if (unlikely(!ffs))
+		goto Enomem;
+
+	ffs->sb              = sb;
+	ffs->dev_name        = kstrdup(data->dev_name, GFP_KERNEL);
+	if (unlikely(!ffs->dev_name))
+		goto Enomem;
+	ffs->file_perms      = data->perms;
+	ffs->private_data    = data->private_data;
+
+	/* used by the caller of this function */
+	data->ffs_data       = ffs;
+
+	sb->s_fs_info        = ffs;
+	sb->s_blocksize      = PAGE_CACHE_SIZE;
+	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+	sb->s_magic          = FUNCTIONFS_MAGIC;
+	sb->s_op             = &ffs_sb_operations;
+	sb->s_time_gran      = 1;
+
+	/* Root inode */
+	data->perms.mode = data->root_mode;
+	inode = ffs_sb_make_inode(sb, NULL,
+				  &simple_dir_operations,
+				  &simple_dir_inode_operations,
+				  &data->perms);
+	sb->s_root = d_make_root(inode);
+	if (unlikely(!sb->s_root))
+		goto Enomem;
+
+	/* EP0 file */
+	if (unlikely(!ffs_sb_create_file(sb, "ep0", ffs,
+					 &ffs_ep0_operations, NULL)))
+		goto Enomem;
+
+	return 0;
+
+Enomem:
+	return -ENOMEM;
+}
+
+static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
+{
+	ENTER();
+
+	if (!opts || !*opts)
+		return 0;
+
+	for (;;) {
+		char *end, *eq, *comma;
+		unsigned long value;
+
+		/* Option limit */
+		comma = strchr(opts, ',');
+		if (comma)
+			*comma = 0;
+
+		/* Value limit */
+		eq = strchr(opts, '=');
+		if (unlikely(!eq)) {
+			pr_err("'=' missing in %s\n", opts);
+			return -EINVAL;
+		}
+		*eq = 0;
+
+		/* Parse value */
+		value = simple_strtoul(eq + 1, &end, 0);
+		if (unlikely(*end != ',' && *end != 0)) {
+			pr_err("%s: invalid value: %s\n", opts, eq + 1);
+			return -EINVAL;
+		}
+
+		/* Interpret option */
+		switch (eq - opts) {
+		case 5:
+			if (!memcmp(opts, "rmode", 5))
+				data->root_mode  = (value & 0555) | S_IFDIR;
+			else if (!memcmp(opts, "fmode", 5))
+				data->perms.mode = (value & 0666) | S_IFREG;
+			else
+				goto invalid;
+			break;
+
+		case 4:
+			if (!memcmp(opts, "mode", 4)) {
+				data->root_mode  = (value & 0555) | S_IFDIR;
+				data->perms.mode = (value & 0666) | S_IFREG;
+			} else {
+				goto invalid;
+			}
+			break;
+
+		case 3:
+			if (!memcmp(opts, "uid", 3))
+				data->perms.uid = value;
+			else if (!memcmp(opts, "gid", 3))
+				data->perms.gid = value;
+			else
+				goto invalid;
+			break;
+
+		default:
+invalid:
+			pr_err("%s: invalid option\n", opts);
+			return -EINVAL;
+		}
+
+		/* Next iteration */
+		if (!comma)
+			break;
+		opts = comma + 1;
+	}
+
+	return 0;
+}
+
+/* "mount -t functionfs dev_name /dev/function" ends up here */
+
+static struct dentry *
+ffs_fs_mount(struct file_system_type *t, int flags,
+	      const char *dev_name, void *opts)
+{
+	struct ffs_sb_fill_data data = {
+		.perms = {
+			.mode = S_IFREG | 0600,
+			.uid = 0,
+			.gid = 0
+		},
+		.root_mode = S_IFDIR | 0500,
+	};
+	struct dentry *rv;
+	int ret;
+	void *ffs_dev;
+
+	ENTER();
+
+	ret = ffs_fs_parse_opts(&data, opts);
+	if (unlikely(ret < 0))
+		return ERR_PTR(ret);
+
+	ffs_dev = functionfs_acquire_dev_callback(dev_name);
+	if (IS_ERR(ffs_dev))
+		return ffs_dev;
+
+	data.dev_name = dev_name;
+	data.private_data = ffs_dev;
+	rv = mount_nodev(t, flags, &data, ffs_sb_fill);
+
+	/* data.ffs_data is set by ffs_sb_fill */
+	if (IS_ERR(rv))
+		functionfs_release_dev_callback(data.ffs_data);
+
+	return rv;
+}
+
+static void
+ffs_fs_kill_sb(struct super_block *sb)
+{
+	ENTER();
+
+	kill_litter_super(sb);
+	if (sb->s_fs_info) {
+		functionfs_release_dev_callback(sb->s_fs_info);
+		ffs_data_put(sb->s_fs_info);
+	}
+}
+
+static struct file_system_type ffs_fs_type = {
+	.owner		= THIS_MODULE,
+	.name		= "functionfs",
+	.mount		= ffs_fs_mount,
+	.kill_sb	= ffs_fs_kill_sb,
+};
+
+
+/* Driver's main init/cleanup functions *************************************/
+
+static int functionfs_init(void)
+{
+	int ret;
+
+	ENTER();
+
+	ret = register_filesystem(&ffs_fs_type);
+	if (likely(!ret))
+		pr_info("file system registered\n");
+	else
+		pr_err("failed registering file system (%d)\n", ret);
+
+	return ret;
+}
+
+static void functionfs_cleanup(void)
+{
+	ENTER();
+
+	pr_info("unloading\n");
+	unregister_filesystem(&ffs_fs_type);
+}
+
+
+/* ffs_data and ffs_function construction and destruction code **************/
+
+static void ffs_data_clear(struct ffs_data *ffs);
+static void ffs_data_reset(struct ffs_data *ffs);
+
+static void ffs_data_get(struct ffs_data *ffs)
+{
+	ENTER();
+
+	atomic_inc(&ffs->ref);
+}
+
+static void ffs_data_opened(struct ffs_data *ffs)
+{
+	ENTER();
+
+	atomic_inc(&ffs->ref);
+	atomic_inc(&ffs->opened);
+}
+
+static void ffs_data_put(struct ffs_data *ffs)
+{
+	ENTER();
+
+	if (unlikely(atomic_dec_and_test(&ffs->ref))) {
+		pr_info("%s(): freeing\n", __func__);
+		ffs_data_clear(ffs);
+		BUG_ON(waitqueue_active(&ffs->ev.waitq) ||
+		       waitqueue_active(&ffs->ep0req_completion.wait));
+		kfree(ffs->dev_name);
+		kfree(ffs);
+	}
+}
+
+static void ffs_data_closed(struct ffs_data *ffs)
+{
+	ENTER();
+
+	if (atomic_dec_and_test(&ffs->opened)) {
+		ffs->state = FFS_CLOSING;
+		ffs_data_reset(ffs);
+	}
+
+	ffs_data_put(ffs);
+}
+
+static struct ffs_data *ffs_data_new(void)
+{
+	struct ffs_data *ffs = kzalloc(sizeof *ffs, GFP_KERNEL);
+	if (unlikely(!ffs))
+		return 0;
+
+	ENTER();
+
+	atomic_set(&ffs->ref, 1);
+	atomic_set(&ffs->opened, 0);
+	ffs->state = FFS_READ_DESCRIPTORS;
+	mutex_init(&ffs->mutex);
+	spin_lock_init(&ffs->eps_lock);
+	init_waitqueue_head(&ffs->ev.waitq);
+	init_completion(&ffs->ep0req_completion);
+
+	/* XXX REVISIT need to update it in some places, or do we? */
+	ffs->ev.can_stall = 1;
+
+	return ffs;
+}
+
+static void ffs_data_clear(struct ffs_data *ffs)
+{
+	ENTER();
+
+	if (test_and_clear_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags))
+		functionfs_closed_callback(ffs);
+
+	BUG_ON(ffs->gadget);
+
+	if (ffs->epfiles)
+		ffs_epfiles_destroy(ffs->epfiles, ffs->eps_count);
+
+	kfree(ffs->raw_descs);
+	kfree(ffs->raw_strings);
+	kfree(ffs->stringtabs);
+}
+
+static void ffs_data_reset(struct ffs_data *ffs)
+{
+	ENTER();
+
+	ffs_data_clear(ffs);
+
+	ffs->epfiles = NULL;
+	ffs->raw_descs = NULL;
+	ffs->raw_strings = NULL;
+	ffs->stringtabs = NULL;
+
+	ffs->raw_descs_length = 0;
+	ffs->raw_fs_descs_length = 0;
+	ffs->fs_descs_count = 0;
+	ffs->hs_descs_count = 0;
+
+	ffs->strings_count = 0;
+	ffs->interfaces_count = 0;
+	ffs->eps_count = 0;
+
+	ffs->ev.count = 0;
+
+	ffs->state = FFS_READ_DESCRIPTORS;
+	ffs->setup_state = FFS_NO_SETUP;
+	ffs->flags = 0;
+}
+
+
+static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev)
+{
+	struct usb_gadget_strings **lang;
+	int first_id;
+
+	ENTER();
+
+	if (WARN_ON(ffs->state != FFS_ACTIVE
+		 || test_and_set_bit(FFS_FL_BOUND, &ffs->flags)))
+		return -EBADFD;
+
+	first_id = usb_string_ids_n(cdev, ffs->strings_count);
+	if (unlikely(first_id < 0))
+		return first_id;
+
+	ffs->ep0req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);
+	if (unlikely(!ffs->ep0req))
+		return -ENOMEM;
+	ffs->ep0req->complete = ffs_ep0_complete;
+	ffs->ep0req->context = ffs;
+
+	lang = ffs->stringtabs;
+	for (lang = ffs->stringtabs; *lang; ++lang) {
+		struct usb_string *str = (*lang)->strings;
+		int id = first_id;
+		for (; str->s; ++id, ++str)
+			str->id = id;
+	}
+
+	ffs->gadget = cdev->gadget;
+	ffs_data_get(ffs);
+	return 0;
+}
+
+static void functionfs_unbind(struct ffs_data *ffs)
+{
+	ENTER();
+
+	if (!WARN_ON(!ffs->gadget)) {
+		usb_ep_free_request(ffs->gadget->ep0, ffs->ep0req);
+		ffs->ep0req = NULL;
+		ffs->gadget = NULL;
+		ffs_data_put(ffs);
+		clear_bit(FFS_FL_BOUND, &ffs->flags);
+	}
+}
+
+static int ffs_epfiles_create(struct ffs_data *ffs)
+{
+	struct ffs_epfile *epfile, *epfiles;
+	unsigned i, count;
+
+	ENTER();
+
+	count = ffs->eps_count;
+	epfiles = kcalloc(count, sizeof(*epfiles), GFP_KERNEL);
+	if (!epfiles)
+		return -ENOMEM;
+
+	epfile = epfiles;
+	for (i = 1; i <= count; ++i, ++epfile) {
+		epfile->ffs = ffs;
+		mutex_init(&epfile->mutex);
+		init_waitqueue_head(&epfile->wait);
+		sprintf(epfiles->name, "ep%u",  i);
+		if (!unlikely(ffs_sb_create_file(ffs->sb, epfiles->name, epfile,
+						 &ffs_epfile_operations,
+						 &epfile->dentry))) {
+			ffs_epfiles_destroy(epfiles, i - 1);
+			return -ENOMEM;
+		}
+	}
+
+	ffs->epfiles = epfiles;
+	return 0;
+}
+
+static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count)
+{
+	struct ffs_epfile *epfile = epfiles;
+
+	ENTER();
+
+	for (; count; --count, ++epfile) {
+		BUG_ON(mutex_is_locked(&epfile->mutex) ||
+		       waitqueue_active(&epfile->wait));
+		if (epfile->dentry) {
+			d_delete(epfile->dentry);
+			dput(epfile->dentry);
+			epfile->dentry = NULL;
+		}
+	}
+
+	kfree(epfiles);
+}
+
+static int functionfs_bind_config(struct usb_composite_dev *cdev,
+				  struct usb_configuration *c,
+				  struct ffs_data *ffs)
+{
+	struct ffs_function *func;
+	int ret;
+
+	ENTER();
+
+	func = kzalloc(sizeof *func, GFP_KERNEL);
+	if (unlikely(!func))
+		return -ENOMEM;
+
+	func->function.name    = "Function FS Gadget";
+	func->function.strings = ffs->stringtabs;
+
+	func->function.bind    = ffs_func_bind;
+	func->function.unbind  = ffs_func_unbind;
+	func->function.set_alt = ffs_func_set_alt;
+	func->function.disable = ffs_func_disable;
+	func->function.setup   = ffs_func_setup;
+	func->function.suspend = ffs_func_suspend;
+	func->function.resume  = ffs_func_resume;
+
+	func->conf   = c;
+	func->gadget = cdev->gadget;
+	func->ffs = ffs;
+	ffs_data_get(ffs);
+
+	ret = usb_add_function(c, &func->function);
+	if (unlikely(ret))
+		ffs_func_free(func);
+
+	return ret;
+}
+
+static void ffs_func_free(struct ffs_function *func)
+{
+	struct ffs_ep *ep         = func->eps;
+	unsigned count            = func->ffs->eps_count;
+	unsigned long flags;
+
+	ENTER();
+
+	/* cleanup after autoconfig */
+	spin_lock_irqsave(&func->ffs->eps_lock, flags);
+	do {
+		if (ep->ep && ep->req)
+			usb_ep_free_request(ep->ep, ep->req);
+		ep->req = NULL;
+		++ep;
+	} while (--count);
+	spin_unlock_irqrestore(&func->ffs->eps_lock, flags);
+
+	ffs_data_put(func->ffs);
+
+	kfree(func->eps);
+	/*
+	 * eps and interfaces_nums are allocated in the same chunk so
+	 * only one free is required.  Descriptors are also allocated
+	 * in the same chunk.
+	 */
+
+	kfree(func);
+}
+
+static void ffs_func_eps_disable(struct ffs_function *func)
+{
+	struct ffs_ep *ep         = func->eps;
+	struct ffs_epfile *epfile = func->ffs->epfiles;
+	unsigned count            = func->ffs->eps_count;
+	unsigned long flags;
+
+	spin_lock_irqsave(&func->ffs->eps_lock, flags);
+	do {
+		/* pending requests get nuked */
+		if (likely(ep->ep))
+			usb_ep_disable(ep->ep);
+		epfile->ep = NULL;
+
+		++ep;
+		++epfile;
+	} while (--count);
+	spin_unlock_irqrestore(&func->ffs->eps_lock, flags);
+}
+
+static int ffs_func_eps_enable(struct ffs_function *func)
+{
+	struct ffs_data *ffs      = func->ffs;
+	struct ffs_ep *ep         = func->eps;
+	struct ffs_epfile *epfile = ffs->epfiles;
+	unsigned count            = ffs->eps_count;
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&func->ffs->eps_lock, flags);
+	do {
+		struct usb_endpoint_descriptor *ds;
+		ds = ep->descs[ep->descs[1] ? 1 : 0];
+
+		ep->ep->driver_data = ep;
+		ep->ep->desc = ds;
+		ret = usb_ep_enable(ep->ep);
+		if (likely(!ret)) {
+			epfile->ep = ep;
+			epfile->in = usb_endpoint_dir_in(ds);
+			epfile->isoc = usb_endpoint_xfer_isoc(ds);
+		} else {
+			break;
+		}
+
+		wake_up(&epfile->wait);
+
+		++ep;
+		++epfile;
+	} while (--count);
+	spin_unlock_irqrestore(&func->ffs->eps_lock, flags);
+
+	return ret;
+}
+
+
+/* Parsing and building descriptors and strings *****************************/
+
+/*
+ * This validates if data pointed by data is a valid USB descriptor as
+ * well as record how many interfaces, endpoints and strings are
+ * required by given configuration.  Returns address after the
+ * descriptor or NULL if data is invalid.
+ */
+
+enum ffs_entity_type {
+	FFS_DESCRIPTOR, FFS_INTERFACE, FFS_STRING, FFS_ENDPOINT
+};
+
+typedef int (*ffs_entity_callback)(enum ffs_entity_type entity,
+				   u8 *valuep,
+				   struct usb_descriptor_header *desc,
+				   void *priv);
+
+static int __must_check ffs_do_desc(char *data, unsigned len,
+				    ffs_entity_callback entity, void *priv)
+{
+	struct usb_descriptor_header *_ds = (void *)data;
+	u8 length;
+	int ret;
+
+	ENTER();
+
+	/* At least two bytes are required: length and type */
+	if (len < 2) {
+		pr_vdebug("descriptor too short\n");
+		return -EINVAL;
+	}
+
+	/* If we have at least as many bytes as the descriptor takes? */
+	length = _ds->bLength;
+	if (len < length) {
+		pr_vdebug("descriptor longer then available data\n");
+		return -EINVAL;
+	}
+
+#define __entity_check_INTERFACE(val)  1
+#define __entity_check_STRING(val)     (val)
+#define __entity_check_ENDPOINT(val)   ((val) & USB_ENDPOINT_NUMBER_MASK)
+#define __entity(type, val) do {					\
+		pr_vdebug("entity " #type "(%02x)\n", (val));		\
+		if (unlikely(!__entity_check_ ##type(val))) {		\
+			pr_vdebug("invalid entity's value\n");		\
+			return -EINVAL;					\
+		}							\
+		ret = entity(FFS_ ##type, &val, _ds, priv);		\
+		if (unlikely(ret < 0)) {				\
+			pr_debug("entity " #type "(%02x); ret = %d\n",	\
+				 (val), ret);				\
+			return ret;					\
+		}							\
+	} while (0)
+
+	/* Parse descriptor depending on type. */
+	switch (_ds->bDescriptorType) {
+	case USB_DT_DEVICE:
+	case USB_DT_CONFIG:
+	case USB_DT_STRING:
+	case USB_DT_DEVICE_QUALIFIER:
+		/* function can't have any of those */
+		pr_vdebug("descriptor reserved for gadget: %d\n",
+		      _ds->bDescriptorType);
+		return -EINVAL;
+
+	case USB_DT_INTERFACE: {
+		struct usb_interface_descriptor *ds = (void *)_ds;
+		pr_vdebug("interface descriptor\n");
+		if (length != sizeof *ds)
+			goto inv_length;
+
+		__entity(INTERFACE, ds->bInterfaceNumber);
+		if (ds->iInterface)
+			__entity(STRING, ds->iInterface);
+	}
+		break;
+
+	case USB_DT_ENDPOINT: {
+		struct usb_endpoint_descriptor *ds = (void *)_ds;
+		pr_vdebug("endpoint descriptor\n");
+		if (length != USB_DT_ENDPOINT_SIZE &&
+		    length != USB_DT_ENDPOINT_AUDIO_SIZE)
+			goto inv_length;
+		__entity(ENDPOINT, ds->bEndpointAddress);
+	}
+		break;
+
+	case HID_DT_HID:
+		pr_vdebug("hid descriptor\n");
+		if (length != sizeof(struct hid_descriptor))
+			goto inv_length;
+		break;
+
+	case USB_DT_OTG:
+		if (length != sizeof(struct usb_otg_descriptor))
+			goto inv_length;
+		break;
+
+	case USB_DT_INTERFACE_ASSOCIATION: {
+		struct usb_interface_assoc_descriptor *ds = (void *)_ds;
+		pr_vdebug("interface association descriptor\n");
+		if (length != sizeof *ds)
+			goto inv_length;
+		if (ds->iFunction)
+			__entity(STRING, ds->iFunction);
+	}
+		break;
+
+	case USB_DT_OTHER_SPEED_CONFIG:
+	case USB_DT_INTERFACE_POWER:
+	case USB_DT_DEBUG:
+	case USB_DT_SECURITY:
+	case USB_DT_CS_RADIO_CONTROL:
+		/* TODO */
+		pr_vdebug("unimplemented descriptor: %d\n", _ds->bDescriptorType);
+		return -EINVAL;
+
+	default:
+		/* We should never be here */
+		pr_vdebug("unknown descriptor: %d\n", _ds->bDescriptorType);
+		return -EINVAL;
+
+inv_length:
+		pr_vdebug("invalid length: %d (descriptor %d)\n",
+			  _ds->bLength, _ds->bDescriptorType);
+		return -EINVAL;
+	}
+
+#undef __entity
+#undef __entity_check_DESCRIPTOR
+#undef __entity_check_INTERFACE
+#undef __entity_check_STRING
+#undef __entity_check_ENDPOINT
+
+	return length;
+}
+
+static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len,
+				     ffs_entity_callback entity, void *priv)
+{
+	const unsigned _len = len;
+	unsigned long num = 0;
+
+	ENTER();
+
+	for (;;) {
+		int ret;
+
+		if (num == count)
+			data = NULL;
+
+		/* Record "descriptor" entity */
+		ret = entity(FFS_DESCRIPTOR, (u8 *)num, (void *)data, priv);
+		if (unlikely(ret < 0)) {
+			pr_debug("entity DESCRIPTOR(%02lx); ret = %d\n",
+				 num, ret);
+			return ret;
+		}
+
+		if (!data)
+			return _len - len;
+
+		ret = ffs_do_desc(data, len, entity, priv);
+		if (unlikely(ret < 0)) {
+			pr_debug("%s returns %d\n", __func__, ret);
+			return ret;
+		}
+
+		len -= ret;
+		data += ret;
+		++num;
+	}
+}
+
+static int __ffs_data_do_entity(enum ffs_entity_type type,
+				u8 *valuep, struct usb_descriptor_header *desc,
+				void *priv)
+{
+	struct ffs_data *ffs = priv;
+
+	ENTER();
+
+	switch (type) {
+	case FFS_DESCRIPTOR:
+		break;
+
+	case FFS_INTERFACE:
+		/*
+		 * Interfaces are indexed from zero so if we
+		 * encountered interface "n" then there are at least
+		 * "n+1" interfaces.
+		 */
+		if (*valuep >= ffs->interfaces_count)
+			ffs->interfaces_count = *valuep + 1;
+		break;
+
+	case FFS_STRING:
+		/*
+		 * Strings are indexed from 1 (0 is magic ;) reserved
+		 * for languages list or some such)
+		 */
+		if (*valuep > ffs->strings_count)
+			ffs->strings_count = *valuep;
+		break;
+
+	case FFS_ENDPOINT:
+		/* Endpoints are indexed from 1 as well. */
+		if ((*valuep & USB_ENDPOINT_NUMBER_MASK) > ffs->eps_count)
+			ffs->eps_count = (*valuep & USB_ENDPOINT_NUMBER_MASK);
+		break;
+	}
+
+	return 0;
+}
+
+static int __ffs_data_got_descs(struct ffs_data *ffs,
+				char *const _data, size_t len)
+{
+	unsigned fs_count, hs_count;
+	int fs_len, ret = -EINVAL;
+	char *data = _data;
+
+	ENTER();
+
+	if (unlikely(get_unaligned_le32(data) != FUNCTIONFS_DESCRIPTORS_MAGIC ||
+		     get_unaligned_le32(data + 4) != len))
+		goto error;
+	fs_count = get_unaligned_le32(data +  8);
+	hs_count = get_unaligned_le32(data + 12);
+
+	if (!fs_count && !hs_count)
+		goto einval;
+
+	data += 16;
+	len  -= 16;
+
+	if (likely(fs_count)) {
+		fs_len = ffs_do_descs(fs_count, data, len,
+				      __ffs_data_do_entity, ffs);
+		if (unlikely(fs_len < 0)) {
+			ret = fs_len;
+			goto error;
+		}
+
+		data += fs_len;
+		len  -= fs_len;
+	} else {
+		fs_len = 0;
+	}
+
+	if (likely(hs_count)) {
+		ret = ffs_do_descs(hs_count, data, len,
+				   __ffs_data_do_entity, ffs);
+		if (unlikely(ret < 0))
+			goto error;
+	} else {
+		ret = 0;
+	}
+
+	if (unlikely(len != ret))
+		goto einval;
+
+	ffs->raw_fs_descs_length = fs_len;
+	ffs->raw_descs_length    = fs_len + ret;
+	ffs->raw_descs           = _data;
+	ffs->fs_descs_count      = fs_count;
+	ffs->hs_descs_count      = hs_count;
+
+	return 0;
+
+einval:
+	ret = -EINVAL;
+error:
+	kfree(_data);
+	return ret;
+}
+
+static int __ffs_data_got_strings(struct ffs_data *ffs,
+				  char *const _data, size_t len)
+{
+	u32 str_count, needed_count, lang_count;
+	struct usb_gadget_strings **stringtabs, *t;
+	struct usb_string *strings, *s;
+	const char *data = _data;
+
+	ENTER();
+
+	if (unlikely(get_unaligned_le32(data) != FUNCTIONFS_STRINGS_MAGIC ||
+		     get_unaligned_le32(data + 4) != len))
+		goto error;
+	str_count  = get_unaligned_le32(data + 8);
+	lang_count = get_unaligned_le32(data + 12);
+
+	/* if one is zero the other must be zero */
+	if (unlikely(!str_count != !lang_count))
+		goto error;
+
+	/* Do we have at least as many strings as descriptors need? */
+	needed_count = ffs->strings_count;
+	if (unlikely(str_count < needed_count))
+		goto error;
+
+	/*
+	 * If we don't need any strings just return and free all
+	 * memory.
+	 */
+	if (!needed_count) {
+		kfree(_data);
+		return 0;
+	}
+
+	/* Allocate everything in one chunk so there's less maintenance. */
+	{
+		struct {
+			struct usb_gadget_strings *stringtabs[lang_count + 1];
+			struct usb_gadget_strings stringtab[lang_count];
+			struct usb_string strings[lang_count*(needed_count+1)];
+		} *d;
+		unsigned i = 0;
+
+		d = kmalloc(sizeof *d, GFP_KERNEL);
+		if (unlikely(!d)) {
+			kfree(_data);
+			return -ENOMEM;
+		}
+
+		stringtabs = d->stringtabs;
+		t = d->stringtab;
+		i = lang_count;
+		do {
+			*stringtabs++ = t++;
+		} while (--i);
+		*stringtabs = NULL;
+
+		stringtabs = d->stringtabs;
+		t = d->stringtab;
+		s = d->strings;
+		strings = s;
+	}
+
+	/* For each language */
+	data += 16;
+	len -= 16;
+
+	do { /* lang_count > 0 so we can use do-while */
+		unsigned needed = needed_count;
+
+		if (unlikely(len < 3))
+			goto error_free;
+		t->language = get_unaligned_le16(data);
+		t->strings  = s;
+		++t;
+
+		data += 2;
+		len -= 2;
+
+		/* For each string */
+		do { /* str_count > 0 so we can use do-while */
+			size_t length = strnlen(data, len);
+
+			if (unlikely(length == len))
+				goto error_free;
+
+			/*
+			 * User may provide more strings then we need,
+			 * if that's the case we simply ignore the
+			 * rest
+			 */
+			if (likely(needed)) {
+				/*
+				 * s->id will be set while adding
+				 * function to configuration so for
+				 * now just leave garbage here.
+				 */
+				s->s = data;
+				--needed;
+				++s;
+			}
+
+			data += length + 1;
+			len -= length + 1;
+		} while (--str_count);
+
+		s->id = 0;   /* terminator */
+		s->s = NULL;
+		++s;
+
+	} while (--lang_count);
+
+	/* Some garbage left? */
+	if (unlikely(len))
+		goto error_free;
+
+	/* Done! */
+	ffs->stringtabs = stringtabs;
+	ffs->raw_strings = _data;
+
+	return 0;
+
+error_free:
+	kfree(stringtabs);
+error:
+	kfree(_data);
+	return -EINVAL;
+}
+
+
+/* Events handling and management *******************************************/
+
+static void __ffs_event_add(struct ffs_data *ffs,
+			    enum usb_functionfs_event_type type)
+{
+	enum usb_functionfs_event_type rem_type1, rem_type2 = type;
+	int neg = 0;
+
+	/*
+	 * Abort any unhandled setup
+	 *
+	 * We do not need to worry about some cmpxchg() changing value
+	 * of ffs->setup_state without holding the lock because when
+	 * state is FFS_SETUP_PENDING cmpxchg() in several places in
+	 * the source does nothing.
+	 */
+	if (ffs->setup_state == FFS_SETUP_PENDING)
+		ffs->setup_state = FFS_SETUP_CANCELED;
+
+	switch (type) {
+	case FUNCTIONFS_RESUME:
+		rem_type2 = FUNCTIONFS_SUSPEND;
+		/* FALL THROUGH */
+	case FUNCTIONFS_SUSPEND:
+	case FUNCTIONFS_SETUP:
+		rem_type1 = type;
+		/* Discard all similar events */
+		break;
+
+	case FUNCTIONFS_BIND:
+	case FUNCTIONFS_UNBIND:
+	case FUNCTIONFS_DISABLE:
+	case FUNCTIONFS_ENABLE:
+		/* Discard everything other then power management. */
+		rem_type1 = FUNCTIONFS_SUSPEND;
+		rem_type2 = FUNCTIONFS_RESUME;
+		neg = 1;
+		break;
+
+	default:
+		BUG();
+	}
+
+	{
+		u8 *ev  = ffs->ev.types, *out = ev;
+		unsigned n = ffs->ev.count;
+		for (; n; --n, ++ev)
+			if ((*ev == rem_type1 || *ev == rem_type2) == neg)
+				*out++ = *ev;
+			else
+				pr_vdebug("purging event %d\n", *ev);
+		ffs->ev.count = out - ffs->ev.types;
+	}
+
+	pr_vdebug("adding event %d\n", type);
+	ffs->ev.types[ffs->ev.count++] = type;
+	wake_up_locked(&ffs->ev.waitq);
+}
+
+static void ffs_event_add(struct ffs_data *ffs,
+			  enum usb_functionfs_event_type type)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&ffs->ev.waitq.lock, flags);
+	__ffs_event_add(ffs, type);
+	spin_unlock_irqrestore(&ffs->ev.waitq.lock, flags);
+}
+
+
+/* Bind/unbind USB function hooks *******************************************/
+
+static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep,
+				    struct usb_descriptor_header *desc,
+				    void *priv)
+{
+	struct usb_endpoint_descriptor *ds = (void *)desc;
+	struct ffs_function *func = priv;
+	struct ffs_ep *ffs_ep;
+
+	/*
+	 * If hs_descriptors is not NULL then we are reading hs
+	 * descriptors now
+	 */
+	const int isHS = func->function.hs_descriptors != NULL;
+	unsigned idx;
+
+	if (type != FFS_DESCRIPTOR)
+		return 0;
+
+	if (isHS)
+		func->function.hs_descriptors[(long)valuep] = desc;
+	else
+		func->function.descriptors[(long)valuep]    = desc;
+
+	if (!desc || desc->bDescriptorType != USB_DT_ENDPOINT)
+		return 0;
+
+	idx = (ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) - 1;
+	ffs_ep = func->eps + idx;
+
+	if (unlikely(ffs_ep->descs[isHS])) {
+		pr_vdebug("two %sspeed descriptors for EP %d\n",
+			  isHS ? "high" : "full",
+			  ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+		return -EINVAL;
+	}
+	ffs_ep->descs[isHS] = ds;
+
+	ffs_dump_mem(": Original  ep desc", ds, ds->bLength);
+	if (ffs_ep->ep) {
+		ds->bEndpointAddress = ffs_ep->descs[0]->bEndpointAddress;
+		if (!ds->wMaxPacketSize)
+			ds->wMaxPacketSize = ffs_ep->descs[0]->wMaxPacketSize;
+	} else {
+		struct usb_request *req;
+		struct usb_ep *ep;
+
+		pr_vdebug("autoconfig\n");
+		ep = usb_ep_autoconfig(func->gadget, ds);
+		if (unlikely(!ep))
+			return -ENOTSUPP;
+		ep->driver_data = func->eps + idx;
+
+		req = usb_ep_alloc_request(ep, GFP_KERNEL);
+		if (unlikely(!req))
+			return -ENOMEM;
+
+		ffs_ep->ep  = ep;
+		ffs_ep->req = req;
+		func->eps_revmap[ds->bEndpointAddress &
+				 USB_ENDPOINT_NUMBER_MASK] = idx + 1;
+	}
+	ffs_dump_mem(": Rewritten ep desc", ds, ds->bLength);
+
+	return 0;
+}
+
+static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep,
+				   struct usb_descriptor_header *desc,
+				   void *priv)
+{
+	struct ffs_function *func = priv;
+	unsigned idx;
+	u8 newValue;
+
+	switch (type) {
+	default:
+	case FFS_DESCRIPTOR:
+		/* Handled in previous pass by __ffs_func_bind_do_descs() */
+		return 0;
+
+	case FFS_INTERFACE:
+		idx = *valuep;
+		if (func->interfaces_nums[idx] < 0) {
+			int id = usb_interface_id(func->conf, &func->function);
+			if (unlikely(id < 0))
+				return id;
+			func->interfaces_nums[idx] = id;
+		}
+		newValue = func->interfaces_nums[idx];
+		break;
+
+	case FFS_STRING:
+		/* String' IDs are allocated when fsf_data is bound to cdev */
+		newValue = func->ffs->stringtabs[0]->strings[*valuep - 1].id;
+		break;
+
+	case FFS_ENDPOINT:
+		/*
+		 * USB_DT_ENDPOINT are handled in
+		 * __ffs_func_bind_do_descs().
+		 */
+		if (desc->bDescriptorType == USB_DT_ENDPOINT)
+			return 0;
+
+		idx = (*valuep & USB_ENDPOINT_NUMBER_MASK) - 1;
+		if (unlikely(!func->eps[idx].ep))
+			return -EINVAL;
+
+		{
+			struct usb_endpoint_descriptor **descs;
+			descs = func->eps[idx].descs;
+			newValue = descs[descs[0] ? 0 : 1]->bEndpointAddress;
+		}
+		break;
+	}
+
+	pr_vdebug("%02x -> %02x\n", *valuep, newValue);
+	*valuep = newValue;
+	return 0;
+}
+
+static int ffs_func_bind(struct usb_configuration *c,
+			 struct usb_function *f)
+{
+	struct ffs_function *func = ffs_func_from_usb(f);
+	struct ffs_data *ffs = func->ffs;
+
+	const int full = !!func->ffs->fs_descs_count;
+	const int high = gadget_is_dualspeed(func->gadget) &&
+		func->ffs->hs_descs_count;
+
+	int ret;
+
+	/* Make it a single chunk, less management later on */
+	struct {
+		struct ffs_ep eps[ffs->eps_count];
+		struct usb_descriptor_header
+			*fs_descs[full ? ffs->fs_descs_count + 1 : 0];
+		struct usb_descriptor_header
+			*hs_descs[high ? ffs->hs_descs_count + 1 : 0];
+		short inums[ffs->interfaces_count];
+		char raw_descs[high ? ffs->raw_descs_length
+				    : ffs->raw_fs_descs_length];
+	} *data;
+
+	ENTER();
+
+	/* Only high speed but not supported by gadget? */
+	if (unlikely(!(full | high)))
+		return -ENOTSUPP;
+
+	/* Allocate */
+	data = kmalloc(sizeof *data, GFP_KERNEL);
+	if (unlikely(!data))
+		return -ENOMEM;
+
+	/* Zero */
+	memset(data->eps, 0, sizeof data->eps);
+	memcpy(data->raw_descs, ffs->raw_descs + 16, sizeof data->raw_descs);
+	memset(data->inums, 0xff, sizeof data->inums);
+	for (ret = ffs->eps_count; ret; --ret)
+		data->eps[ret].num = -1;
+
+	/* Save pointers */
+	func->eps             = data->eps;
+	func->interfaces_nums = data->inums;
+
+	/*
+	 * Go through all the endpoint descriptors and allocate
+	 * endpoints first, so that later we can rewrite the endpoint
+	 * numbers without worrying that it may be described later on.
+	 */
+	if (likely(full)) {
+		func->function.descriptors = data->fs_descs;
+		ret = ffs_do_descs(ffs->fs_descs_count,
+				   data->raw_descs,
+				   sizeof data->raw_descs,
+				   __ffs_func_bind_do_descs, func);
+		if (unlikely(ret < 0))
+			goto error;
+	} else {
+		ret = 0;
+	}
+
+	if (likely(high)) {
+		func->function.hs_descriptors = data->hs_descs;
+		ret = ffs_do_descs(ffs->hs_descs_count,
+				   data->raw_descs + ret,
+				   (sizeof data->raw_descs) - ret,
+				   __ffs_func_bind_do_descs, func);
+	}
+
+	/*
+	 * Now handle interface numbers allocation and interface and
+	 * endpoint numbers rewriting.  We can do that in one go
+	 * now.
+	 */
+	ret = ffs_do_descs(ffs->fs_descs_count +
+			   (high ? ffs->hs_descs_count : 0),
+			   data->raw_descs, sizeof data->raw_descs,
+			   __ffs_func_bind_do_nums, func);
+	if (unlikely(ret < 0))
+		goto error;
+
+	/* And we're done */
+	ffs_event_add(ffs, FUNCTIONFS_BIND);
+	return 0;
+
+error:
+	/* XXX Do we need to release all claimed endpoints here? */
+	return ret;
+}
+
+
+/* Other USB function hooks *************************************************/
+
+static void ffs_func_unbind(struct usb_configuration *c,
+			    struct usb_function *f)
+{
+	struct ffs_function *func = ffs_func_from_usb(f);
+	struct ffs_data *ffs = func->ffs;
+
+	ENTER();
+
+	if (ffs->func == func) {
+		ffs_func_eps_disable(func);
+		ffs->func = NULL;
+	}
+
+	ffs_event_add(ffs, FUNCTIONFS_UNBIND);
+
+	ffs_func_free(func);
+}
+
+static int ffs_func_set_alt(struct usb_function *f,
+			    unsigned interface, unsigned alt)
+{
+	struct ffs_function *func = ffs_func_from_usb(f);
+	struct ffs_data *ffs = func->ffs;
+	int ret = 0, intf;
+
+	if (alt != (unsigned)-1) {
+		intf = ffs_func_revmap_intf(func, interface);
+		if (unlikely(intf < 0))
+			return intf;
+	}
+
+	if (ffs->func)
+		ffs_func_eps_disable(ffs->func);
+
+	if (ffs->state != FFS_ACTIVE)
+		return -ENODEV;
+
+	if (alt == (unsigned)-1) {
+		ffs->func = NULL;
+		ffs_event_add(ffs, FUNCTIONFS_DISABLE);
+		return 0;
+	}
+
+	ffs->func = func;
+	ret = ffs_func_eps_enable(func);
+	if (likely(ret >= 0))
+		ffs_event_add(ffs, FUNCTIONFS_ENABLE);
+	return ret;
+}
+
+static void ffs_func_disable(struct usb_function *f)
+{
+	ffs_func_set_alt(f, 0, (unsigned)-1);
+}
+
+static int ffs_func_setup(struct usb_function *f,
+			  const struct usb_ctrlrequest *creq)
+{
+	struct ffs_function *func = ffs_func_from_usb(f);
+	struct ffs_data *ffs = func->ffs;
+	unsigned long flags;
+	int ret;
+
+	ENTER();
+
+	pr_vdebug("creq->bRequestType = %02x\n", creq->bRequestType);
+	pr_vdebug("creq->bRequest     = %02x\n", creq->bRequest);
+	pr_vdebug("creq->wValue       = %04x\n", le16_to_cpu(creq->wValue));
+	pr_vdebug("creq->wIndex       = %04x\n", le16_to_cpu(creq->wIndex));
+	pr_vdebug("creq->wLength      = %04x\n", le16_to_cpu(creq->wLength));
+
+	/*
+	 * Most requests directed to interface go through here
+	 * (notable exceptions are set/get interface) so we need to
+	 * handle them.  All other either handled by composite or
+	 * passed to usb_configuration->setup() (if one is set).  No
+	 * matter, we will handle requests directed to endpoint here
+	 * as well (as it's straightforward) but what to do with any
+	 * other request?
+	 */
+	if (ffs->state != FFS_ACTIVE)
+		return -ENODEV;
+
+	switch (creq->bRequestType & USB_RECIP_MASK) {
+	case USB_RECIP_INTERFACE:
+		ret = ffs_func_revmap_intf(func, le16_to_cpu(creq->wIndex));
+		if (unlikely(ret < 0))
+			return ret;
+		break;
+
+	case USB_RECIP_ENDPOINT:
+		ret = ffs_func_revmap_ep(func, le16_to_cpu(creq->wIndex));
+		if (unlikely(ret < 0))
+			return ret;
+		break;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	spin_lock_irqsave(&ffs->ev.waitq.lock, flags);
+	ffs->ev.setup = *creq;
+	ffs->ev.setup.wIndex = cpu_to_le16(ret);
+	__ffs_event_add(ffs, FUNCTIONFS_SETUP);
+	spin_unlock_irqrestore(&ffs->ev.waitq.lock, flags);
+
+	return 0;
+}
+
+static void ffs_func_suspend(struct usb_function *f)
+{
+	ENTER();
+	ffs_event_add(ffs_func_from_usb(f)->ffs, FUNCTIONFS_SUSPEND);
+}
+
+static void ffs_func_resume(struct usb_function *f)
+{
+	ENTER();
+	ffs_event_add(ffs_func_from_usb(f)->ffs, FUNCTIONFS_RESUME);
+}
+
+
+/* Endpoint and interface numbers reverse mapping ***************************/
+
+static int ffs_func_revmap_ep(struct ffs_function *func, u8 num)
+{
+	num = func->eps_revmap[num & USB_ENDPOINT_NUMBER_MASK];
+	return num ? num : -EDOM;
+}
+
+static int ffs_func_revmap_intf(struct ffs_function *func, u8 intf)
+{
+	short *nums = func->interfaces_nums;
+	unsigned count = func->ffs->interfaces_count;
+
+	for (; count; --count, ++nums) {
+		if (*nums >= 0 && *nums == intf)
+			return nums - func->interfaces_nums;
+	}
+
+	return -EDOM;
+}
+
+
+/* Misc helper functions ****************************************************/
+
+static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
+{
+	return nonblock
+		? likely(mutex_trylock(mutex)) ? 0 : -EAGAIN
+		: mutex_lock_interruptible(mutex);
+}
+
+static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+{
+	char *data;
+
+	if (unlikely(!len))
+		return NULL;
+
+	data = kmalloc(len, GFP_KERNEL);
+	if (unlikely(!data))
+		return ERR_PTR(-ENOMEM);
+
+	if (unlikely(__copy_from_user(data, buf, len))) {
+		kfree(data);
+		return ERR_PTR(-EFAULT);
+	}
+
+	pr_vdebug("Buffer from user space:\n");
+	ffs_dump_mem("", data, len);
+
+	return data;
+}
diff --git a/drivers/staging/ccg/f_mass_storage.c b/drivers/staging/ccg/f_mass_storage.c
new file mode 100644
index 00000000000..4f1142efa6d
--- /dev/null
+++ b/drivers/staging/ccg/f_mass_storage.c
@@ -0,0 +1,3135 @@
+/*
+ * f_mass_storage.c -- Mass Storage USB Composite Function
+ *
+ * Copyright (C) 2003-2008 Alan Stern
+ * Copyright (C) 2009 Samsung Electronics
+ *                    Author: Michal Nazarewicz <mina86@mina86.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The names of the above-listed copyright holders may not be used
+ *    to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * The Mass Storage Function acts as a USB Mass Storage device,
+ * appearing to the host as a disk drive or as a CD-ROM drive.  In
+ * addition to providing an example of a genuinely useful composite
+ * function for a USB device, it also illustrates a technique of
+ * double-buffering for increased throughput.
+ *
+ * For more information about MSF and in particular its module
+ * parameters and sysfs interface read the
+ * <Documentation/usb/mass-storage.txt> file.
+ */
+
+/*
+ * MSF is configured by specifying a fsg_config structure.  It has the
+ * following fields:
+ *
+ *	nluns		Number of LUNs function have (anywhere from 1
+ *				to FSG_MAX_LUNS which is 8).
+ *	luns		An array of LUN configuration values.  This
+ *				should be filled for each LUN that
+ *				function will include (ie. for "nluns"
+ *				LUNs).  Each element of the array has
+ *				the following fields:
+ *	->filename	The path to the backing file for the LUN.
+ *				Required if LUN is not marked as
+ *				removable.
+ *	->ro		Flag specifying access to the LUN shall be
+ *				read-only.  This is implied if CD-ROM
+ *				emulation is enabled as well as when
+ *				it was impossible to open "filename"
+ *				in R/W mode.
+ *	->removable	Flag specifying that LUN shall be indicated as
+ *				being removable.
+ *	->cdrom		Flag specifying that LUN shall be reported as
+ *				being a CD-ROM.
+ *	->nofua		Flag specifying that FUA flag in SCSI WRITE(10,12)
+ *				commands for this LUN shall be ignored.
+ *
+ *	vendor_name
+ *	product_name
+ *	release		Information used as a reply to INQUIRY
+ *				request.  To use default set to NULL,
+ *				NULL, 0xffff respectively.  The first
+ *				field should be 8 and the second 16
+ *				characters or less.
+ *
+ *	can_stall	Set to permit function to halt bulk endpoints.
+ *				Disabled on some USB devices known not
+ *				to work correctly.  You should set it
+ *				to true.
+ *
+ * If "removable" is not set for a LUN then a backing file must be
+ * specified.  If it is set, then NULL filename means the LUN's medium
+ * is not loaded (an empty string as "filename" in the fsg_config
+ * structure causes error).  The CD-ROM emulation includes a single
+ * data track and no audio tracks; hence there need be only one
+ * backing file per LUN.
+ *
+ * This function is heavily based on "File-backed Storage Gadget" by
+ * Alan Stern which in turn is heavily based on "Gadget Zero" by David
+ * Brownell.  The driver's SCSI command interface was based on the
+ * "Information technology - Small Computer System Interface - 2"
+ * document from X3T9.2 Project 375D, Revision 10L, 7-SEP-93,
+ * available at <http://www.t10.org/ftp/t10/drafts/s2/s2-r10l.pdf>.
+ * The single exception is opcode 0x23 (READ FORMAT CAPACITIES), which
+ * was based on the "Universal Serial Bus Mass Storage Class UFI
+ * Command Specification" document, Revision 1.0, December 14, 1998,
+ * available at
+ * <http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf>.
+ */
+
+/*
+ *				Driver Design
+ *
+ * The MSF is fairly straightforward.  There is a main kernel
+ * thread that handles most of the work.  Interrupt routines field
+ * callbacks from the controller driver: bulk- and interrupt-request
+ * completion notifications, endpoint-0 events, and disconnect events.
+ * Completion events are passed to the main thread by wakeup calls.  Many
+ * ep0 requests are handled at interrupt time, but SetInterface,
+ * SetConfiguration, and device reset requests are forwarded to the
+ * thread in the form of "exceptions" using SIGUSR1 signals (since they
+ * should interrupt any ongoing file I/O operations).
+ *
+ * The thread's main routine implements the standard command/data/status
+ * parts of a SCSI interaction.  It and its subroutines are full of tests
+ * for pending signals/exceptions -- all this polling is necessary since
+ * the kernel has no setjmp/longjmp equivalents.  (Maybe this is an
+ * indication that the driver really wants to be running in userspace.)
+ * An important point is that so long as the thread is alive it keeps an
+ * open reference to the backing file.  This will prevent unmounting
+ * the backing file's underlying filesystem and could cause problems
+ * during system shutdown, for example.  To prevent such problems, the
+ * thread catches INT, TERM, and KILL signals and converts them into
+ * an EXIT exception.
+ *
+ * In normal operation the main thread is started during the gadget's
+ * fsg_bind() callback and stopped during fsg_unbind().  But it can
+ * also exit when it receives a signal, and there's no point leaving
+ * the gadget running when the thread is dead.  As of this moment, MSF
+ * provides no way to deregister the gadget when thread dies -- maybe
+ * a callback functions is needed.
+ *
+ * To provide maximum throughput, the driver uses a circular pipeline of
+ * buffer heads (struct fsg_buffhd).  In principle the pipeline can be
+ * arbitrarily long; in practice the benefits don't justify having more
+ * than 2 stages (i.e., double buffering).  But it helps to think of the
+ * pipeline as being a long one.  Each buffer head contains a bulk-in and
+ * a bulk-out request pointer (since the buffer can be used for both
+ * output and input -- directions always are given from the host's
+ * point of view) as well as a pointer to the buffer and various state
+ * variables.
+ *
+ * Use of the pipeline follows a simple protocol.  There is a variable
+ * (fsg->next_buffhd_to_fill) that points to the next buffer head to use.
+ * At any time that buffer head may still be in use from an earlier
+ * request, so each buffer head has a state variable indicating whether
+ * it is EMPTY, FULL, or BUSY.  Typical use involves waiting for the
+ * buffer head to be EMPTY, filling the buffer either by file I/O or by
+ * USB I/O (during which the buffer head is BUSY), and marking the buffer
+ * head FULL when the I/O is complete.  Then the buffer will be emptied
+ * (again possibly by USB I/O, during which it is marked BUSY) and
+ * finally marked EMPTY again (possibly by a completion routine).
+ *
+ * A module parameter tells the driver to avoid stalling the bulk
+ * endpoints wherever the transport specification allows.  This is
+ * necessary for some UDCs like the SuperH, which cannot reliably clear a
+ * halt on a bulk endpoint.  However, under certain circumstances the
+ * Bulk-only specification requires a stall.  In such cases the driver
+ * will halt the endpoint and set a flag indicating that it should clear
+ * the halt in software during the next device reset.  Hopefully this
+ * will permit everything to work correctly.  Furthermore, although the
+ * specification allows the bulk-out endpoint to halt when the host sends
+ * too much data, implementing this would cause an unavoidable race.
+ * The driver will always use the "no-stall" approach for OUT transfers.
+ *
+ * One subtle point concerns sending status-stage responses for ep0
+ * requests.  Some of these requests, such as device reset, can involve
+ * interrupting an ongoing file I/O operation, which might take an
+ * arbitrarily long time.  During that delay the host might give up on
+ * the original ep0 request and issue a new one.  When that happens the
+ * driver should not notify the host about completion of the original
+ * request, as the host will no longer be waiting for it.  So the driver
+ * assigns to each ep0 request a unique tag, and it keeps track of the
+ * tag value of the request associated with a long-running exception
+ * (device-reset, interface-change, or configuration-change).  When the
+ * exception handler is finished, the status-stage response is submitted
+ * only if the current ep0 request tag is equal to the exception request
+ * tag.  Thus only the most recently received ep0 request will get a
+ * status-stage response.
+ *
+ * Warning: This driver source file is too long.  It ought to be split up
+ * into a header file plus about 3 separate .c files, to handle the details
+ * of the Gadget, USB Mass Storage, and SCSI protocols.
+ */
+
+
+/* #define VERBOSE_DEBUG */
+/* #define DUMP_MSGS */
+
+#include <linux/blkdev.h>
+#include <linux/completion.h>
+#include <linux/dcache.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/fcntl.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/kref.h>
+#include <linux/kthread.h>
+#include <linux/limits.h>
+#include <linux/rwsem.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/freezer.h>
+#include <linux/utsname.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/composite.h>
+
+#include "gadget_chips.h"
+
+
+/*------------------------------------------------------------------------*/
+
+#define FSG_DRIVER_DESC		"Mass Storage Function"
+#define FSG_DRIVER_VERSION	"2009/09/11"
+
+static const char fsg_string_interface[] = "Mass Storage";
+
+#define FSG_NO_DEVICE_STRINGS    1
+#define FSG_NO_OTG               1
+#define FSG_NO_INTR_EP           1
+
+#include "storage_common.c"
+
+
+/*-------------------------------------------------------------------------*/
+
+struct fsg_dev;
+struct fsg_common;
+
+/* FSF callback functions */
+struct fsg_operations {
+	/*
+	 * Callback function to call when thread exits.  If no
+	 * callback is set or it returns value lower then zero MSF
+	 * will force eject all LUNs it operates on (including those
+	 * marked as non-removable or with prevent_medium_removal flag
+	 * set).
+	 */
+	int (*thread_exits)(struct fsg_common *common);
+
+	/*
+	 * Called prior to ejection.  Negative return means error,
+	 * zero means to continue with ejection, positive means not to
+	 * eject.
+	 */
+	int (*pre_eject)(struct fsg_common *common,
+			 struct fsg_lun *lun, int num);
+	/*
+	 * Called after ejection.  Negative return means error, zero
+	 * or positive is just a success.
+	 */
+	int (*post_eject)(struct fsg_common *common,
+			  struct fsg_lun *lun, int num);
+};
+
+/* Data shared by all the FSG instances. */
+struct fsg_common {
+	struct usb_gadget	*gadget;
+	struct usb_composite_dev *cdev;
+	struct fsg_dev		*fsg, *new_fsg;
+	wait_queue_head_t	fsg_wait;
+
+	/* filesem protects: backing files in use */
+	struct rw_semaphore	filesem;
+
+	/* lock protects: state, all the req_busy's */
+	spinlock_t		lock;
+
+	struct usb_ep		*ep0;		/* Copy of gadget->ep0 */
+	struct usb_request	*ep0req;	/* Copy of cdev->req */
+	unsigned int		ep0_req_tag;
+
+	struct fsg_buffhd	*next_buffhd_to_fill;
+	struct fsg_buffhd	*next_buffhd_to_drain;
+	struct fsg_buffhd	*buffhds;
+
+	int			cmnd_size;
+	u8			cmnd[MAX_COMMAND_SIZE];
+
+	unsigned int		nluns;
+	unsigned int		lun;
+	struct fsg_lun		*luns;
+	struct fsg_lun		*curlun;
+
+	unsigned int		bulk_out_maxpacket;
+	enum fsg_state		state;		/* For exception handling */
+	unsigned int		exception_req_tag;
+
+	enum data_direction	data_dir;
+	u32			data_size;
+	u32			data_size_from_cmnd;
+	u32			tag;
+	u32			residue;
+	u32			usb_amount_left;
+
+	unsigned int		can_stall:1;
+	unsigned int		free_storage_on_release:1;
+	unsigned int		phase_error:1;
+	unsigned int		short_packet_received:1;
+	unsigned int		bad_lun_okay:1;
+	unsigned int		running:1;
+
+	int			thread_wakeup_needed;
+	struct completion	thread_notifier;
+	struct task_struct	*thread_task;
+
+	/* Callback functions. */
+	const struct fsg_operations	*ops;
+	/* Gadget's private data. */
+	void			*private_data;
+
+	/*
+	 * Vendor (8 chars), product (16 chars), release (4
+	 * hexadecimal digits) and NUL byte
+	 */
+	char inquiry_string[8 + 16 + 4 + 1];
+
+	struct kref		ref;
+};
+
+struct fsg_config {
+	unsigned nluns;
+	struct fsg_lun_config {
+		const char *filename;
+		char ro;
+		char removable;
+		char cdrom;
+		char nofua;
+	} luns[FSG_MAX_LUNS];
+
+	/* Callback functions. */
+	const struct fsg_operations	*ops;
+	/* Gadget's private data. */
+	void			*private_data;
+
+	const char *vendor_name;		/*  8 characters or less */
+	const char *product_name;		/* 16 characters or less */
+	u16 release;
+
+	char			can_stall;
+};
+
+struct fsg_dev {
+	struct usb_function	function;
+	struct usb_gadget	*gadget;	/* Copy of cdev->gadget */
+	struct fsg_common	*common;
+
+	u16			interface_number;
+
+	unsigned int		bulk_in_enabled:1;
+	unsigned int		bulk_out_enabled:1;
+
+	unsigned long		atomic_bitflags;
+#define IGNORE_BULK_OUT		0
+
+	struct usb_ep		*bulk_in;
+	struct usb_ep		*bulk_out;
+};
+
+static inline int __fsg_is_set(struct fsg_common *common,
+			       const char *func, unsigned line)
+{
+	if (common->fsg)
+		return 1;
+	ERROR(common, "common->fsg is NULL in %s at %u\n", func, line);
+	WARN_ON(1);
+	return 0;
+}
+
+#define fsg_is_set(common) likely(__fsg_is_set(common, __func__, __LINE__))
+
+static inline struct fsg_dev *fsg_from_func(struct usb_function *f)
+{
+	return container_of(f, struct fsg_dev, function);
+}
+
+typedef void (*fsg_routine_t)(struct fsg_dev *);
+
+static int exception_in_progress(struct fsg_common *common)
+{
+	return common->state > FSG_STATE_IDLE;
+}
+
+/* Make bulk-out requests be divisible by the maxpacket size */
+static void set_bulk_out_req_length(struct fsg_common *common,
+				    struct fsg_buffhd *bh, unsigned int length)
+{
+	unsigned int	rem;
+
+	bh->bulk_out_intended_length = length;
+	rem = length % common->bulk_out_maxpacket;
+	if (rem > 0)
+		length += common->bulk_out_maxpacket - rem;
+	bh->outreq->length = length;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)
+{
+	const char	*name;
+
+	if (ep == fsg->bulk_in)
+		name = "bulk-in";
+	else if (ep == fsg->bulk_out)
+		name = "bulk-out";
+	else
+		name = ep->name;
+	DBG(fsg, "%s set halt\n", name);
+	return usb_ep_set_halt(ep);
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/* These routines may be called in process context or in_irq */
+
+/* Caller must hold fsg->lock */
+static void wakeup_thread(struct fsg_common *common)
+{
+	/* Tell the main thread that something has happened */
+	common->thread_wakeup_needed = 1;
+	if (common->thread_task)
+		wake_up_process(common->thread_task);
+}
+
+static void raise_exception(struct fsg_common *common, enum fsg_state new_state)
+{
+	unsigned long		flags;
+
+	/*
+	 * Do nothing if a higher-priority exception is already in progress.
+	 * If a lower-or-equal priority exception is in progress, preempt it
+	 * and notify the main thread by sending it a signal.
+	 */
+	spin_lock_irqsave(&common->lock, flags);
+	if (common->state <= new_state) {
+		common->exception_req_tag = common->ep0_req_tag;
+		common->state = new_state;
+		if (common->thread_task)
+			send_sig_info(SIGUSR1, SEND_SIG_FORCED,
+				      common->thread_task);
+	}
+	spin_unlock_irqrestore(&common->lock, flags);
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int ep0_queue(struct fsg_common *common)
+{
+	int	rc;
+
+	rc = usb_ep_queue(common->ep0, common->ep0req, GFP_ATOMIC);
+	common->ep0->driver_data = common;
+	if (rc != 0 && rc != -ESHUTDOWN) {
+		/* We can't do much more than wait for a reset */
+		WARNING(common, "error in submission: %s --> %d\n",
+			common->ep0->name, rc);
+	}
+	return rc;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/* Completion handlers. These always run in_irq. */
+
+static void bulk_in_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct fsg_common	*common = ep->driver_data;
+	struct fsg_buffhd	*bh = req->context;
+
+	if (req->status || req->actual != req->length)
+		DBG(common, "%s --> %d, %u/%u\n", __func__,
+		    req->status, req->actual, req->length);
+	if (req->status == -ECONNRESET)		/* Request was cancelled */
+		usb_ep_fifo_flush(ep);
+
+	/* Hold the lock while we update the request and buffer states */
+	smp_wmb();
+	spin_lock(&common->lock);
+	bh->inreq_busy = 0;
+	bh->state = BUF_STATE_EMPTY;
+	wakeup_thread(common);
+	spin_unlock(&common->lock);
+}
+
+static void bulk_out_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct fsg_common	*common = ep->driver_data;
+	struct fsg_buffhd	*bh = req->context;
+
+	dump_msg(common, "bulk-out", req->buf, req->actual);
+	if (req->status || req->actual != bh->bulk_out_intended_length)
+		DBG(common, "%s --> %d, %u/%u\n", __func__,
+		    req->status, req->actual, bh->bulk_out_intended_length);
+	if (req->status == -ECONNRESET)		/* Request was cancelled */
+		usb_ep_fifo_flush(ep);
+
+	/* Hold the lock while we update the request and buffer states */
+	smp_wmb();
+	spin_lock(&common->lock);
+	bh->outreq_busy = 0;
+	bh->state = BUF_STATE_FULL;
+	wakeup_thread(common);
+	spin_unlock(&common->lock);
+}
+
+static int fsg_setup(struct usb_function *f,
+		     const struct usb_ctrlrequest *ctrl)
+{
+	struct fsg_dev		*fsg = fsg_from_func(f);
+	struct usb_request	*req = fsg->common->ep0req;
+	u16			w_index = le16_to_cpu(ctrl->wIndex);
+	u16			w_value = le16_to_cpu(ctrl->wValue);
+	u16			w_length = le16_to_cpu(ctrl->wLength);
+
+	if (!fsg_is_set(fsg->common))
+		return -EOPNOTSUPP;
+
+	++fsg->common->ep0_req_tag;	/* Record arrival of a new request */
+	req->context = NULL;
+	req->length = 0;
+	dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl));
+
+	switch (ctrl->bRequest) {
+
+	case US_BULK_RESET_REQUEST:
+		if (ctrl->bRequestType !=
+		    (USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE))
+			break;
+		if (w_index != fsg->interface_number || w_value != 0 ||
+				w_length != 0)
+			return -EDOM;
+
+		/*
+		 * Raise an exception to stop the current operation
+		 * and reinitialize our state.
+		 */
+		DBG(fsg, "bulk reset request\n");
+		raise_exception(fsg->common, FSG_STATE_RESET);
+		return DELAYED_STATUS;
+
+	case US_BULK_GET_MAX_LUN:
+		if (ctrl->bRequestType !=
+		    (USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE))
+			break;
+		if (w_index != fsg->interface_number || w_value != 0 ||
+				w_length != 1)
+			return -EDOM;
+		VDBG(fsg, "get max LUN\n");
+		*(u8 *)req->buf = fsg->common->nluns - 1;
+
+		/* Respond with data/status */
+		req->length = min((u16)1, w_length);
+		return ep0_queue(fsg->common);
+	}
+
+	VDBG(fsg,
+	     "unknown class-specific control req %02x.%02x v%04x i%04x l%u\n",
+	     ctrl->bRequestType, ctrl->bRequest,
+	     le16_to_cpu(ctrl->wValue), w_index, w_length);
+	return -EOPNOTSUPP;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/* All the following routines run in process context */
+
+/* Use this for bulk or interrupt transfers, not ep0 */
+static void start_transfer(struct fsg_dev *fsg, struct usb_ep *ep,
+			   struct usb_request *req, int *pbusy,
+			   enum fsg_buffer_state *state)
+{
+	int	rc;
+
+	if (ep == fsg->bulk_in)
+		dump_msg(fsg, "bulk-in", req->buf, req->length);
+
+	spin_lock_irq(&fsg->common->lock);
+	*pbusy = 1;
+	*state = BUF_STATE_BUSY;
+	spin_unlock_irq(&fsg->common->lock);
+	rc = usb_ep_queue(ep, req, GFP_KERNEL);
+	if (rc != 0) {
+		*pbusy = 0;
+		*state = BUF_STATE_EMPTY;
+
+		/* We can't do much more than wait for a reset */
+
+		/*
+		 * Note: currently the net2280 driver fails zero-length
+		 * submissions if DMA is enabled.
+		 */
+		if (rc != -ESHUTDOWN &&
+		    !(rc == -EOPNOTSUPP && req->length == 0))
+			WARNING(fsg, "error in submission: %s --> %d\n",
+				ep->name, rc);
+	}
+}
+
+static bool start_in_transfer(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	if (!fsg_is_set(common))
+		return false;
+	start_transfer(common->fsg, common->fsg->bulk_in,
+		       bh->inreq, &bh->inreq_busy, &bh->state);
+	return true;
+}
+
+static bool start_out_transfer(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	if (!fsg_is_set(common))
+		return false;
+	start_transfer(common->fsg, common->fsg->bulk_out,
+		       bh->outreq, &bh->outreq_busy, &bh->state);
+	return true;
+}
+
+static int sleep_thread(struct fsg_common *common)
+{
+	int	rc = 0;
+
+	/* Wait until a signal arrives or we are woken up */
+	for (;;) {
+		try_to_freeze();
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (signal_pending(current)) {
+			rc = -EINTR;
+			break;
+		}
+		if (common->thread_wakeup_needed)
+			break;
+		schedule();
+	}
+	__set_current_state(TASK_RUNNING);
+	common->thread_wakeup_needed = 0;
+	return rc;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int do_read(struct fsg_common *common)
+{
+	struct fsg_lun		*curlun = common->curlun;
+	u32			lba;
+	struct fsg_buffhd	*bh;
+	int			rc;
+	u32			amount_left;
+	loff_t			file_offset, file_offset_tmp;
+	unsigned int		amount;
+	ssize_t			nread;
+
+	/*
+	 * Get the starting Logical Block Address and check that it's
+	 * not too big.
+	 */
+	if (common->cmnd[0] == READ_6)
+		lba = get_unaligned_be24(&common->cmnd[1]);
+	else {
+		lba = get_unaligned_be32(&common->cmnd[2]);
+
+		/*
+		 * We allow DPO (Disable Page Out = don't save data in the
+		 * cache) and FUA (Force Unit Access = don't read from the
+		 * cache), but we don't implement them.
+		 */
+		if ((common->cmnd[1] & ~0x18) != 0) {
+			curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+			return -EINVAL;
+		}
+	}
+	if (lba >= curlun->num_sectors) {
+		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+		return -EINVAL;
+	}
+	file_offset = ((loff_t) lba) << curlun->blkbits;
+
+	/* Carry out the file reads */
+	amount_left = common->data_size_from_cmnd;
+	if (unlikely(amount_left == 0))
+		return -EIO;		/* No default reply */
+
+	for (;;) {
+		/*
+		 * Figure out how much we need to read:
+		 * Try to read the remaining amount.
+		 * But don't read more than the buffer size.
+		 * And don't try to read past the end of the file.
+		 */
+		amount = min(amount_left, FSG_BUFLEN);
+		amount = min((loff_t)amount,
+			     curlun->file_length - file_offset);
+
+		/* Wait for the next buffer to become available */
+		bh = common->next_buffhd_to_fill;
+		while (bh->state != BUF_STATE_EMPTY) {
+			rc = sleep_thread(common);
+			if (rc)
+				return rc;
+		}
+
+		/*
+		 * If we were asked to read past the end of file,
+		 * end with an empty buffer.
+		 */
+		if (amount == 0) {
+			curlun->sense_data =
+					SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+			curlun->sense_data_info =
+					file_offset >> curlun->blkbits;
+			curlun->info_valid = 1;
+			bh->inreq->length = 0;
+			bh->state = BUF_STATE_FULL;
+			break;
+		}
+
+		/* Perform the read */
+		file_offset_tmp = file_offset;
+		nread = vfs_read(curlun->filp,
+				 (char __user *)bh->buf,
+				 amount, &file_offset_tmp);
+		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
+		      (unsigned long long)file_offset, (int)nread);
+		if (signal_pending(current))
+			return -EINTR;
+
+		if (nread < 0) {
+			LDBG(curlun, "error in file read: %d\n", (int)nread);
+			nread = 0;
+		} else if (nread < amount) {
+			LDBG(curlun, "partial file read: %d/%u\n",
+			     (int)nread, amount);
+			nread = round_down(nread, curlun->blksize);
+		}
+		file_offset  += nread;
+		amount_left  -= nread;
+		common->residue -= nread;
+
+		/*
+		 * Except at the end of the transfer, nread will be
+		 * equal to the buffer size, which is divisible by the
+		 * bulk-in maxpacket size.
+		 */
+		bh->inreq->length = nread;
+		bh->state = BUF_STATE_FULL;
+
+		/* If an error occurred, report it and its position */
+		if (nread < amount) {
+			curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
+			curlun->sense_data_info =
+					file_offset >> curlun->blkbits;
+			curlun->info_valid = 1;
+			break;
+		}
+
+		if (amount_left == 0)
+			break;		/* No more left to read */
+
+		/* Send this buffer and go read some more */
+		bh->inreq->zero = 0;
+		if (!start_in_transfer(common, bh))
+			/* Don't know what to do if common->fsg is NULL */
+			return -EIO;
+		common->next_buffhd_to_fill = bh->next;
+	}
+
+	return -EIO;		/* No default reply */
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int do_write(struct fsg_common *common)
+{
+	struct fsg_lun		*curlun = common->curlun;
+	u32			lba;
+	struct fsg_buffhd	*bh;
+	int			get_some_more;
+	u32			amount_left_to_req, amount_left_to_write;
+	loff_t			usb_offset, file_offset, file_offset_tmp;
+	unsigned int		amount;
+	ssize_t			nwritten;
+	int			rc;
+
+	if (curlun->ro) {
+		curlun->sense_data = SS_WRITE_PROTECTED;
+		return -EINVAL;
+	}
+	spin_lock(&curlun->filp->f_lock);
+	curlun->filp->f_flags &= ~O_SYNC;	/* Default is not to wait */
+	spin_unlock(&curlun->filp->f_lock);
+
+	/*
+	 * Get the starting Logical Block Address and check that it's
+	 * not too big
+	 */
+	if (common->cmnd[0] == WRITE_6)
+		lba = get_unaligned_be24(&common->cmnd[1]);
+	else {
+		lba = get_unaligned_be32(&common->cmnd[2]);
+
+		/*
+		 * We allow DPO (Disable Page Out = don't save data in the
+		 * cache) and FUA (Force Unit Access = write directly to the
+		 * medium).  We don't implement DPO; we implement FUA by
+		 * performing synchronous output.
+		 */
+		if (common->cmnd[1] & ~0x18) {
+			curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+			return -EINVAL;
+		}
+		if (!curlun->nofua && (common->cmnd[1] & 0x08)) { /* FUA */
+			spin_lock(&curlun->filp->f_lock);
+			curlun->filp->f_flags |= O_SYNC;
+			spin_unlock(&curlun->filp->f_lock);
+		}
+	}
+	if (lba >= curlun->num_sectors) {
+		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+		return -EINVAL;
+	}
+
+	/* Carry out the file writes */
+	get_some_more = 1;
+	file_offset = usb_offset = ((loff_t) lba) << curlun->blkbits;
+	amount_left_to_req = common->data_size_from_cmnd;
+	amount_left_to_write = common->data_size_from_cmnd;
+
+	while (amount_left_to_write > 0) {
+
+		/* Queue a request for more data from the host */
+		bh = common->next_buffhd_to_fill;
+		if (bh->state == BUF_STATE_EMPTY && get_some_more) {
+
+			/*
+			 * Figure out how much we want to get:
+			 * Try to get the remaining amount,
+			 * but not more than the buffer size.
+			 */
+			amount = min(amount_left_to_req, FSG_BUFLEN);
+
+			/* Beyond the end of the backing file? */
+			if (usb_offset >= curlun->file_length) {
+				get_some_more = 0;
+				curlun->sense_data =
+					SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+				curlun->sense_data_info =
+					usb_offset >> curlun->blkbits;
+				curlun->info_valid = 1;
+				continue;
+			}
+
+			/* Get the next buffer */
+			usb_offset += amount;
+			common->usb_amount_left -= amount;
+			amount_left_to_req -= amount;
+			if (amount_left_to_req == 0)
+				get_some_more = 0;
+
+			/*
+			 * Except at the end of the transfer, amount will be
+			 * equal to the buffer size, which is divisible by
+			 * the bulk-out maxpacket size.
+			 */
+			set_bulk_out_req_length(common, bh, amount);
+			if (!start_out_transfer(common, bh))
+				/* Dunno what to do if common->fsg is NULL */
+				return -EIO;
+			common->next_buffhd_to_fill = bh->next;
+			continue;
+		}
+
+		/* Write the received data to the backing file */
+		bh = common->next_buffhd_to_drain;
+		if (bh->state == BUF_STATE_EMPTY && !get_some_more)
+			break;			/* We stopped early */
+		if (bh->state == BUF_STATE_FULL) {
+			smp_rmb();
+			common->next_buffhd_to_drain = bh->next;
+			bh->state = BUF_STATE_EMPTY;
+
+			/* Did something go wrong with the transfer? */
+			if (bh->outreq->status != 0) {
+				curlun->sense_data = SS_COMMUNICATION_FAILURE;
+				curlun->sense_data_info =
+					file_offset >> curlun->blkbits;
+				curlun->info_valid = 1;
+				break;
+			}
+
+			amount = bh->outreq->actual;
+			if (curlun->file_length - file_offset < amount) {
+				LERROR(curlun,
+				       "write %u @ %llu beyond end %llu\n",
+				       amount, (unsigned long long)file_offset,
+				       (unsigned long long)curlun->file_length);
+				amount = curlun->file_length - file_offset;
+			}
+
+			/* Don't accept excess data.  The spec doesn't say
+			 * what to do in this case.  We'll ignore the error.
+			 */
+			amount = min(amount, bh->bulk_out_intended_length);
+
+			/* Don't write a partial block */
+			amount = round_down(amount, curlun->blksize);
+			if (amount == 0)
+				goto empty_write;
+
+			/* Perform the write */
+			file_offset_tmp = file_offset;
+			nwritten = vfs_write(curlun->filp,
+					     (char __user *)bh->buf,
+					     amount, &file_offset_tmp);
+			VLDBG(curlun, "file write %u @ %llu -> %d\n", amount,
+			      (unsigned long long)file_offset, (int)nwritten);
+			if (signal_pending(current))
+				return -EINTR;		/* Interrupted! */
+
+			if (nwritten < 0) {
+				LDBG(curlun, "error in file write: %d\n",
+				     (int)nwritten);
+				nwritten = 0;
+			} else if (nwritten < amount) {
+				LDBG(curlun, "partial file write: %d/%u\n",
+				     (int)nwritten, amount);
+				nwritten = round_down(nwritten, curlun->blksize);
+			}
+			file_offset += nwritten;
+			amount_left_to_write -= nwritten;
+			common->residue -= nwritten;
+
+			/* If an error occurred, report it and its position */
+			if (nwritten < amount) {
+				curlun->sense_data = SS_WRITE_ERROR;
+				curlun->sense_data_info =
+					file_offset >> curlun->blkbits;
+				curlun->info_valid = 1;
+				break;
+			}
+
+ empty_write:
+			/* Did the host decide to stop early? */
+			if (bh->outreq->actual < bh->bulk_out_intended_length) {
+				common->short_packet_received = 1;
+				break;
+			}
+			continue;
+		}
+
+		/* Wait for something to happen */
+		rc = sleep_thread(common);
+		if (rc)
+			return rc;
+	}
+
+	return -EIO;		/* No default reply */
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int do_synchronize_cache(struct fsg_common *common)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	int		rc;
+
+	/* We ignore the requested LBA and write out all file's
+	 * dirty data buffers. */
+	rc = fsg_lun_fsync_sub(curlun);
+	if (rc)
+		curlun->sense_data = SS_WRITE_ERROR;
+	return 0;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static void invalidate_sub(struct fsg_lun *curlun)
+{
+	struct file	*filp = curlun->filp;
+	struct inode	*inode = filp->f_path.dentry->d_inode;
+	unsigned long	rc;
+
+	rc = invalidate_mapping_pages(inode->i_mapping, 0, -1);
+	VLDBG(curlun, "invalidate_mapping_pages -> %ld\n", rc);
+}
+
+static int do_verify(struct fsg_common *common)
+{
+	struct fsg_lun		*curlun = common->curlun;
+	u32			lba;
+	u32			verification_length;
+	struct fsg_buffhd	*bh = common->next_buffhd_to_fill;
+	loff_t			file_offset, file_offset_tmp;
+	u32			amount_left;
+	unsigned int		amount;
+	ssize_t			nread;
+
+	/*
+	 * Get the starting Logical Block Address and check that it's
+	 * not too big.
+	 */
+	lba = get_unaligned_be32(&common->cmnd[2]);
+	if (lba >= curlun->num_sectors) {
+		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+		return -EINVAL;
+	}
+
+	/*
+	 * We allow DPO (Disable Page Out = don't save data in the
+	 * cache) but we don't implement it.
+	 */
+	if (common->cmnd[1] & ~0x10) {
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+
+	verification_length = get_unaligned_be16(&common->cmnd[7]);
+	if (unlikely(verification_length == 0))
+		return -EIO;		/* No default reply */
+
+	/* Prepare to carry out the file verify */
+	amount_left = verification_length << curlun->blkbits;
+	file_offset = ((loff_t) lba) << curlun->blkbits;
+
+	/* Write out all the dirty buffers before invalidating them */
+	fsg_lun_fsync_sub(curlun);
+	if (signal_pending(current))
+		return -EINTR;
+
+	invalidate_sub(curlun);
+	if (signal_pending(current))
+		return -EINTR;
+
+	/* Just try to read the requested blocks */
+	while (amount_left > 0) {
+		/*
+		 * Figure out how much we need to read:
+		 * Try to read the remaining amount, but not more than
+		 * the buffer size.
+		 * And don't try to read past the end of the file.
+		 */
+		amount = min(amount_left, FSG_BUFLEN);
+		amount = min((loff_t)amount,
+			     curlun->file_length - file_offset);
+		if (amount == 0) {
+			curlun->sense_data =
+					SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+			curlun->sense_data_info =
+				file_offset >> curlun->blkbits;
+			curlun->info_valid = 1;
+			break;
+		}
+
+		/* Perform the read */
+		file_offset_tmp = file_offset;
+		nread = vfs_read(curlun->filp,
+				(char __user *) bh->buf,
+				amount, &file_offset_tmp);
+		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
+				(unsigned long long) file_offset,
+				(int) nread);
+		if (signal_pending(current))
+			return -EINTR;
+
+		if (nread < 0) {
+			LDBG(curlun, "error in file verify: %d\n", (int)nread);
+			nread = 0;
+		} else if (nread < amount) {
+			LDBG(curlun, "partial file verify: %d/%u\n",
+			     (int)nread, amount);
+			nread = round_down(nread, curlun->blksize);
+		}
+		if (nread == 0) {
+			curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
+			curlun->sense_data_info =
+				file_offset >> curlun->blkbits;
+			curlun->info_valid = 1;
+			break;
+		}
+		file_offset += nread;
+		amount_left -= nread;
+	}
+	return 0;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int do_inquiry(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun *curlun = common->curlun;
+	u8	*buf = (u8 *) bh->buf;
+
+	if (!curlun) {		/* Unsupported LUNs are okay */
+		common->bad_lun_okay = 1;
+		memset(buf, 0, 36);
+		buf[0] = 0x7f;		/* Unsupported, no device-type */
+		buf[4] = 31;		/* Additional length */
+		return 36;
+	}
+
+	buf[0] = curlun->cdrom ? TYPE_ROM : TYPE_DISK;
+	buf[1] = curlun->removable ? 0x80 : 0;
+	buf[2] = 2;		/* ANSI SCSI level 2 */
+	buf[3] = 2;		/* SCSI-2 INQUIRY data format */
+	buf[4] = 31;		/* Additional length */
+	buf[5] = 0;		/* No special options */
+	buf[6] = 0;
+	buf[7] = 0;
+	memcpy(buf + 8, common->inquiry_string, sizeof common->inquiry_string);
+	return 36;
+}
+
+static int do_request_sense(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	u8		*buf = (u8 *) bh->buf;
+	u32		sd, sdinfo;
+	int		valid;
+
+	/*
+	 * From the SCSI-2 spec., section 7.9 (Unit attention condition):
+	 *
+	 * If a REQUEST SENSE command is received from an initiator
+	 * with a pending unit attention condition (before the target
+	 * generates the contingent allegiance condition), then the
+	 * target shall either:
+	 *   a) report any pending sense data and preserve the unit
+	 *	attention condition on the logical unit, or,
+	 *   b) report the unit attention condition, may discard any
+	 *	pending sense data, and clear the unit attention
+	 *	condition on the logical unit for that initiator.
+	 *
+	 * FSG normally uses option a); enable this code to use option b).
+	 */
+#if 0
+	if (curlun && curlun->unit_attention_data != SS_NO_SENSE) {
+		curlun->sense_data = curlun->unit_attention_data;
+		curlun->unit_attention_data = SS_NO_SENSE;
+	}
+#endif
+
+	if (!curlun) {		/* Unsupported LUNs are okay */
+		common->bad_lun_okay = 1;
+		sd = SS_LOGICAL_UNIT_NOT_SUPPORTED;
+		sdinfo = 0;
+		valid = 0;
+	} else {
+		sd = curlun->sense_data;
+		sdinfo = curlun->sense_data_info;
+		valid = curlun->info_valid << 7;
+		curlun->sense_data = SS_NO_SENSE;
+		curlun->sense_data_info = 0;
+		curlun->info_valid = 0;
+	}
+
+	memset(buf, 0, 18);
+	buf[0] = valid | 0x70;			/* Valid, current error */
+	buf[2] = SK(sd);
+	put_unaligned_be32(sdinfo, &buf[3]);	/* Sense information */
+	buf[7] = 18 - 8;			/* Additional sense length */
+	buf[12] = ASC(sd);
+	buf[13] = ASCQ(sd);
+	return 18;
+}
+
+static int do_read_capacity(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	u32		lba = get_unaligned_be32(&common->cmnd[2]);
+	int		pmi = common->cmnd[8];
+	u8		*buf = (u8 *)bh->buf;
+
+	/* Check the PMI and LBA fields */
+	if (pmi > 1 || (pmi == 0 && lba != 0)) {
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+
+	put_unaligned_be32(curlun->num_sectors - 1, &buf[0]);
+						/* Max logical block */
+	put_unaligned_be32(curlun->blksize, &buf[4]);/* Block length */
+	return 8;
+}
+
+static int do_read_header(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	int		msf = common->cmnd[1] & 0x02;
+	u32		lba = get_unaligned_be32(&common->cmnd[2]);
+	u8		*buf = (u8 *)bh->buf;
+
+	if (common->cmnd[1] & ~0x02) {		/* Mask away MSF */
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+	if (lba >= curlun->num_sectors) {
+		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
+		return -EINVAL;
+	}
+
+	memset(buf, 0, 8);
+	buf[0] = 0x01;		/* 2048 bytes of user data, rest is EC */
+	store_cdrom_address(&buf[4], msf, lba);
+	return 8;
+}
+
+static int do_read_toc(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	int		msf = common->cmnd[1] & 0x02;
+	int		start_track = common->cmnd[6];
+	u8		*buf = (u8 *)bh->buf;
+
+	if ((common->cmnd[1] & ~0x02) != 0 ||	/* Mask away MSF */
+			start_track > 1) {
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+
+	memset(buf, 0, 20);
+	buf[1] = (20-2);		/* TOC data length */
+	buf[2] = 1;			/* First track number */
+	buf[3] = 1;			/* Last track number */
+	buf[5] = 0x16;			/* Data track, copying allowed */
+	buf[6] = 0x01;			/* Only track is number 1 */
+	store_cdrom_address(&buf[8], msf, 0);
+
+	buf[13] = 0x16;			/* Lead-out track is data */
+	buf[14] = 0xAA;			/* Lead-out track number */
+	store_cdrom_address(&buf[16], msf, curlun->num_sectors);
+	return 20;
+}
+
+static int do_mode_sense(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	int		mscmnd = common->cmnd[0];
+	u8		*buf = (u8 *) bh->buf;
+	u8		*buf0 = buf;
+	int		pc, page_code;
+	int		changeable_values, all_pages;
+	int		valid_page = 0;
+	int		len, limit;
+
+	if ((common->cmnd[1] & ~0x08) != 0) {	/* Mask away DBD */
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+	pc = common->cmnd[2] >> 6;
+	page_code = common->cmnd[2] & 0x3f;
+	if (pc == 3) {
+		curlun->sense_data = SS_SAVING_PARAMETERS_NOT_SUPPORTED;
+		return -EINVAL;
+	}
+	changeable_values = (pc == 1);
+	all_pages = (page_code == 0x3f);
+
+	/*
+	 * Write the mode parameter header.  Fixed values are: default
+	 * medium type, no cache control (DPOFUA), and no block descriptors.
+	 * The only variable value is the WriteProtect bit.  We will fill in
+	 * the mode data length later.
+	 */
+	memset(buf, 0, 8);
+	if (mscmnd == MODE_SENSE) {
+		buf[2] = (curlun->ro ? 0x80 : 0x00);		/* WP, DPOFUA */
+		buf += 4;
+		limit = 255;
+	} else {			/* MODE_SENSE_10 */
+		buf[3] = (curlun->ro ? 0x80 : 0x00);		/* WP, DPOFUA */
+		buf += 8;
+		limit = 65535;		/* Should really be FSG_BUFLEN */
+	}
+
+	/* No block descriptors */
+
+	/*
+	 * The mode pages, in numerical order.  The only page we support
+	 * is the Caching page.
+	 */
+	if (page_code == 0x08 || all_pages) {
+		valid_page = 1;
+		buf[0] = 0x08;		/* Page code */
+		buf[1] = 10;		/* Page length */
+		memset(buf+2, 0, 10);	/* None of the fields are changeable */
+
+		if (!changeable_values) {
+			buf[2] = 0x04;	/* Write cache enable, */
+					/* Read cache not disabled */
+					/* No cache retention priorities */
+			put_unaligned_be16(0xffff, &buf[4]);
+					/* Don't disable prefetch */
+					/* Minimum prefetch = 0 */
+			put_unaligned_be16(0xffff, &buf[8]);
+					/* Maximum prefetch */
+			put_unaligned_be16(0xffff, &buf[10]);
+					/* Maximum prefetch ceiling */
+		}
+		buf += 12;
+	}
+
+	/*
+	 * Check that a valid page was requested and the mode data length
+	 * isn't too long.
+	 */
+	len = buf - buf0;
+	if (!valid_page || len > limit) {
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+
+	/*  Store the mode data length */
+	if (mscmnd == MODE_SENSE)
+		buf0[0] = len - 1;
+	else
+		put_unaligned_be16(len - 2, buf0);
+	return len;
+}
+
+static int do_start_stop(struct fsg_common *common)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	int		loej, start;
+
+	if (!curlun) {
+		return -EINVAL;
+	} else if (!curlun->removable) {
+		curlun->sense_data = SS_INVALID_COMMAND;
+		return -EINVAL;
+	} else if ((common->cmnd[1] & ~0x01) != 0 || /* Mask away Immed */
+		   (common->cmnd[4] & ~0x03) != 0) { /* Mask LoEj, Start */
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+
+	loej  = common->cmnd[4] & 0x02;
+	start = common->cmnd[4] & 0x01;
+
+	/*
+	 * Our emulation doesn't support mounting; the medium is
+	 * available for use as soon as it is loaded.
+	 */
+	if (start) {
+		if (!fsg_lun_is_open(curlun)) {
+			curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
+			return -EINVAL;
+		}
+		return 0;
+	}
+
+	/* Are we allowed to unload the media? */
+	if (curlun->prevent_medium_removal) {
+		LDBG(curlun, "unload attempt prevented\n");
+		curlun->sense_data = SS_MEDIUM_REMOVAL_PREVENTED;
+		return -EINVAL;
+	}
+
+	if (!loej)
+		return 0;
+
+	/* Simulate an unload/eject */
+	if (common->ops && common->ops->pre_eject) {
+		int r = common->ops->pre_eject(common, curlun,
+					       curlun - common->luns);
+		if (unlikely(r < 0))
+			return r;
+		else if (r)
+			return 0;
+	}
+
+	up_read(&common->filesem);
+	down_write(&common->filesem);
+	fsg_lun_close(curlun);
+	up_write(&common->filesem);
+	down_read(&common->filesem);
+
+	return common->ops && common->ops->post_eject
+		? min(0, common->ops->post_eject(common, curlun,
+						 curlun - common->luns))
+		: 0;
+}
+
+static int do_prevent_allow(struct fsg_common *common)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	int		prevent;
+
+	if (!common->curlun) {
+		return -EINVAL;
+	} else if (!common->curlun->removable) {
+		common->curlun->sense_data = SS_INVALID_COMMAND;
+		return -EINVAL;
+	}
+
+	prevent = common->cmnd[4] & 0x01;
+	if ((common->cmnd[4] & ~0x01) != 0) {	/* Mask away Prevent */
+		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+		return -EINVAL;
+	}
+
+	if (curlun->prevent_medium_removal && !prevent)
+		fsg_lun_fsync_sub(curlun);
+	curlun->prevent_medium_removal = prevent;
+	return 0;
+}
+
+static int do_read_format_capacities(struct fsg_common *common,
+			struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+	u8		*buf = (u8 *) bh->buf;
+
+	buf[0] = buf[1] = buf[2] = 0;
+	buf[3] = 8;	/* Only the Current/Maximum Capacity Descriptor */
+	buf += 4;
+
+	put_unaligned_be32(curlun->num_sectors, &buf[0]);
+						/* Number of blocks */
+	put_unaligned_be32(curlun->blksize, &buf[4]);/* Block length */
+	buf[4] = 0x02;				/* Current capacity */
+	return 12;
+}
+
+static int do_mode_select(struct fsg_common *common, struct fsg_buffhd *bh)
+{
+	struct fsg_lun	*curlun = common->curlun;
+
+	/* We don't support MODE SELECT */
+	if (curlun)
+		curlun->sense_data = SS_INVALID_COMMAND;
+	return -EINVAL;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int halt_bulk_in_endpoint(struct fsg_dev *fsg)
+{
+	int	rc;
+
+	rc = fsg_set_halt(fsg, fsg->bulk_in);
+	if (rc == -EAGAIN)
+		VDBG(fsg, "delayed bulk-in endpoint halt\n");
+	while (rc != 0) {
+		if (rc != -EAGAIN) {
+			WARNING(fsg, "usb_ep_set_halt -> %d\n", rc);
+			rc = 0;
+			break;
+		}
+
+		/* Wait for a short time and then try again */
+		if (msleep_interruptible(100) != 0)
+			return -EINTR;
+		rc = usb_ep_set_halt(fsg->bulk_in);
+	}
+	return rc;
+}
+
+static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)
+{
+	int	rc;
+
+	DBG(fsg, "bulk-in set wedge\n");
+	rc = usb_ep_set_wedge(fsg->bulk_in);
+	if (rc == -EAGAIN)
+		VDBG(fsg, "delayed bulk-in endpoint wedge\n");
+	while (rc != 0) {
+		if (rc != -EAGAIN) {
+			WARNING(fsg, "usb_ep_set_wedge -> %d\n", rc);
+			rc = 0;
+			break;
+		}
+
+		/* Wait for a short time and then try again */
+		if (msleep_interruptible(100) != 0)
+			return -EINTR;
+		rc = usb_ep_set_wedge(fsg->bulk_in);
+	}
+	return rc;
+}
+
+static int throw_away_data(struct fsg_common *common)
+{
+	struct fsg_buffhd	*bh;
+	u32			amount;
+	int			rc;
+
+	for (bh = common->next_buffhd_to_drain;
+	     bh->state != BUF_STATE_EMPTY || common->usb_amount_left > 0;
+	     bh = common->next_buffhd_to_drain) {
+
+		/* Throw away the data in a filled buffer */
+		if (bh->state == BUF_STATE_FULL) {
+			smp_rmb();
+			bh->state = BUF_STATE_EMPTY;
+			common->next_buffhd_to_drain = bh->next;
+
+			/* A short packet or an error ends everything */
+			if (bh->outreq->actual < bh->bulk_out_intended_length ||
+			    bh->outreq->status != 0) {
+				raise_exception(common,
+						FSG_STATE_ABORT_BULK_OUT);
+				return -EINTR;
+			}
+			continue;
+		}
+
+		/* Try to submit another request if we need one */
+		bh = common->next_buffhd_to_fill;
+		if (bh->state == BUF_STATE_EMPTY
+		 && common->usb_amount_left > 0) {
+			amount = min(common->usb_amount_left, FSG_BUFLEN);
+
+			/*
+			 * Except at the end of the transfer, amount will be
+			 * equal to the buffer size, which is divisible by
+			 * the bulk-out maxpacket size.
+			 */
+			set_bulk_out_req_length(common, bh, amount);
+			if (!start_out_transfer(common, bh))
+				/* Dunno what to do if common->fsg is NULL */
+				return -EIO;
+			common->next_buffhd_to_fill = bh->next;
+			common->usb_amount_left -= amount;
+			continue;
+		}
+
+		/* Otherwise wait for something to happen */
+		rc = sleep_thread(common);
+		if (rc)
+			return rc;
+	}
+	return 0;
+}
+
+static int finish_reply(struct fsg_common *common)
+{
+	struct fsg_buffhd	*bh = common->next_buffhd_to_fill;
+	int			rc = 0;
+
+	switch (common->data_dir) {
+	case DATA_DIR_NONE:
+		break;			/* Nothing to send */
+
+	/*
+	 * If we don't know whether the host wants to read or write,
+	 * this must be CB or CBI with an unknown command.  We mustn't
+	 * try to send or receive any data.  So stall both bulk pipes
+	 * if we can and wait for a reset.
+	 */
+	case DATA_DIR_UNKNOWN:
+		if (!common->can_stall) {
+			/* Nothing */
+		} else if (fsg_is_set(common)) {
+			fsg_set_halt(common->fsg, common->fsg->bulk_out);
+			rc = halt_bulk_in_endpoint(common->fsg);
+		} else {
+			/* Don't know what to do if common->fsg is NULL */
+			rc = -EIO;
+		}
+		break;
+
+	/* All but the last buffer of data must have already been sent */
+	case DATA_DIR_TO_HOST:
+		if (common->data_size == 0) {
+			/* Nothing to send */
+
+		/* Don't know what to do if common->fsg is NULL */
+		} else if (!fsg_is_set(common)) {
+			rc = -EIO;
+
+		/* If there's no residue, simply send the last buffer */
+		} else if (common->residue == 0) {
+			bh->inreq->zero = 0;
+			if (!start_in_transfer(common, bh))
+				return -EIO;
+			common->next_buffhd_to_fill = bh->next;
+
+		/*
+		 * For Bulk-only, mark the end of the data with a short
+		 * packet.  If we are allowed to stall, halt the bulk-in
+		 * endpoint.  (Note: This violates the Bulk-Only Transport
+		 * specification, which requires us to pad the data if we
+		 * don't halt the endpoint.  Presumably nobody will mind.)
+		 */
+		} else {
+			bh->inreq->zero = 1;
+			if (!start_in_transfer(common, bh))
+				rc = -EIO;
+			common->next_buffhd_to_fill = bh->next;
+			if (common->can_stall)
+				rc = halt_bulk_in_endpoint(common->fsg);
+		}
+		break;
+
+	/*
+	 * We have processed all we want from the data the host has sent.
+	 * There may still be outstanding bulk-out requests.
+	 */
+	case DATA_DIR_FROM_HOST:
+		if (common->residue == 0) {
+			/* Nothing to receive */
+
+		/* Did the host stop sending unexpectedly early? */
+		} else if (common->short_packet_received) {
+			raise_exception(common, FSG_STATE_ABORT_BULK_OUT);
+			rc = -EINTR;
+
+		/*
+		 * We haven't processed all the incoming data.  Even though
+		 * we may be allowed to stall, doing so would cause a race.
+		 * The controller may already have ACK'ed all the remaining
+		 * bulk-out packets, in which case the host wouldn't see a
+		 * STALL.  Not realizing the endpoint was halted, it wouldn't
+		 * clear the halt -- leading to problems later on.
+		 */
+#if 0
+		} else if (common->can_stall) {
+			if (fsg_is_set(common))
+				fsg_set_halt(common->fsg,
+					     common->fsg->bulk_out);
+			raise_exception(common, FSG_STATE_ABORT_BULK_OUT);
+			rc = -EINTR;
+#endif
+
+		/*
+		 * We can't stall.  Read in the excess data and throw it
+		 * all away.
+		 */
+		} else {
+			rc = throw_away_data(common);
+		}
+		break;
+	}
+	return rc;
+}
+
+static int send_status(struct fsg_common *common)
+{
+	struct fsg_lun		*curlun = common->curlun;
+	struct fsg_buffhd	*bh;
+	struct bulk_cs_wrap	*csw;
+	int			rc;
+	u8			status = US_BULK_STAT_OK;
+	u32			sd, sdinfo = 0;
+
+	/* Wait for the next buffer to become available */
+	bh = common->next_buffhd_to_fill;
+	while (bh->state != BUF_STATE_EMPTY) {
+		rc = sleep_thread(common);
+		if (rc)
+			return rc;
+	}
+
+	if (curlun) {
+		sd = curlun->sense_data;
+		sdinfo = curlun->sense_data_info;
+	} else if (common->bad_lun_okay)
+		sd = SS_NO_SENSE;
+	else
+		sd = SS_LOGICAL_UNIT_NOT_SUPPORTED;
+
+	if (common->phase_error) {
+		DBG(common, "sending phase-error status\n");
+		status = US_BULK_STAT_PHASE;
+		sd = SS_INVALID_COMMAND;
+	} else if (sd != SS_NO_SENSE) {
+		DBG(common, "sending command-failure status\n");
+		status = US_BULK_STAT_FAIL;
+		VDBG(common, "  sense data: SK x%02x, ASC x%02x, ASCQ x%02x;"
+				"  info x%x\n",
+				SK(sd), ASC(sd), ASCQ(sd), sdinfo);
+	}
+
+	/* Store and send the Bulk-only CSW */
+	csw = (void *)bh->buf;
+
+	csw->Signature = cpu_to_le32(US_BULK_CS_SIGN);
+	csw->Tag = common->tag;
+	csw->Residue = cpu_to_le32(common->residue);
+	csw->Status = status;
+
+	bh->inreq->length = US_BULK_CS_WRAP_LEN;
+	bh->inreq->zero = 0;
+	if (!start_in_transfer(common, bh))
+		/* Don't know what to do if common->fsg is NULL */
+		return -EIO;
+
+	common->next_buffhd_to_fill = bh->next;
+	return 0;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Check whether the command is properly formed and whether its data size
+ * and direction agree with the values we already have.
+ */
+static int check_command(struct fsg_common *common, int cmnd_size,
+			 enum data_direction data_dir, unsigned int mask,
+			 int needs_medium, const char *name)
+{
+	int			i;
+	int			lun = common->cmnd[1] >> 5;
+	static const char	dirletter[4] = {'u', 'o', 'i', 'n'};
+	char			hdlen[20];
+	struct fsg_lun		*curlun;
+
+	hdlen[0] = 0;
+	if (common->data_dir != DATA_DIR_UNKNOWN)
+		sprintf(hdlen, ", H%c=%u", dirletter[(int) common->data_dir],
+			common->data_size);
+	VDBG(common, "SCSI command: %s;  Dc=%d, D%c=%u;  Hc=%d%s\n",
+	     name, cmnd_size, dirletter[(int) data_dir],
+	     common->data_size_from_cmnd, common->cmnd_size, hdlen);
+
+	/*
+	 * We can't reply at all until we know the correct data direction
+	 * and size.
+	 */
+	if (common->data_size_from_cmnd == 0)
+		data_dir = DATA_DIR_NONE;
+	if (common->data_size < common->data_size_from_cmnd) {
+		/*
+		 * Host data size < Device data size is a phase error.
+		 * Carry out the command, but only transfer as much as
+		 * we are allowed.
+		 */
+		common->data_size_from_cmnd = common->data_size;
+		common->phase_error = 1;
+	}
+	common->residue = common->data_size;
+	common->usb_amount_left = common->data_size;
+
+	/* Conflicting data directions is a phase error */
+	if (common->data_dir != data_dir && common->data_size_from_cmnd > 0) {
+		common->phase_error = 1;
+		return -EINVAL;
+	}
+
+	/* Verify the length of the command itself */
+	if (cmnd_size != common->cmnd_size) {
+
+		/*
+		 * Special case workaround: There are plenty of buggy SCSI
+		 * implementations. Many have issues with cbw->Length
+		 * field passing a wrong command size. For those cases we
+		 * always try to work around the problem by using the length
+		 * sent by the host side provided it is at least as large
+		 * as the correct command length.
+		 * Examples of such cases would be MS-Windows, which issues
+		 * REQUEST SENSE with cbw->Length == 12 where it should
+		 * be 6, and xbox360 issuing INQUIRY, TEST UNIT READY and
+		 * REQUEST SENSE with cbw->Length == 10 where it should
+		 * be 6 as well.
+		 */
+		if (cmnd_size <= common->cmnd_size) {
+			DBG(common, "%s is buggy! Expected length %d "
+			    "but we got %d\n", name,
+			    cmnd_size, common->cmnd_size);
+			cmnd_size = common->cmnd_size;
+		} else {
+			common->phase_error = 1;
+			return -EINVAL;
+		}
+	}
+
+	/* Check that the LUN values are consistent */
+	if (common->lun != lun)
+		DBG(common, "using LUN %d from CBW, not LUN %d from CDB\n",
+		    common->lun, lun);
+
+	/* Check the LUN */
+	curlun = common->curlun;
+	if (curlun) {
+		if (common->cmnd[0] != REQUEST_SENSE) {
+			curlun->sense_data = SS_NO_SENSE;
+			curlun->sense_data_info = 0;
+			curlun->info_valid = 0;
+		}
+	} else {
+		common->bad_lun_okay = 0;
+
+		/*
+		 * INQUIRY and REQUEST SENSE commands are explicitly allowed
+		 * to use unsupported LUNs; all others may not.
+		 */
+		if (common->cmnd[0] != INQUIRY &&
+		    common->cmnd[0] != REQUEST_SENSE) {
+			DBG(common, "unsupported LUN %d\n", common->lun);
+			return -EINVAL;
+		}
+	}
+
+	/*
+	 * If a unit attention condition exists, only INQUIRY and
+	 * REQUEST SENSE commands are allowed; anything else must fail.
+	 */
+	if (curlun && curlun->unit_attention_data != SS_NO_SENSE &&
+	    common->cmnd[0] != INQUIRY &&
+	    common->cmnd[0] != REQUEST_SENSE) {
+		curlun->sense_data = curlun->unit_attention_data;
+		curlun->unit_attention_data = SS_NO_SENSE;
+		return -EINVAL;
+	}
+
+	/* Check that only command bytes listed in the mask are non-zero */
+	common->cmnd[1] &= 0x1f;			/* Mask away the LUN */
+	for (i = 1; i < cmnd_size; ++i) {
+		if (common->cmnd[i] && !(mask & (1 << i))) {
+			if (curlun)
+				curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+			return -EINVAL;
+		}
+	}
+
+	/* If the medium isn't mounted and the command needs to access
+	 * it, return an error. */
+	if (curlun && !fsg_lun_is_open(curlun) && needs_medium) {
+		curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* wrapper of check_command for data size in blocks handling */
+static int check_command_size_in_blocks(struct fsg_common *common,
+		int cmnd_size, enum data_direction data_dir,
+		unsigned int mask, int needs_medium, const char *name)
+{
+	if (common->curlun)
+		common->data_size_from_cmnd <<= common->curlun->blkbits;
+	return check_command(common, cmnd_size, data_dir,
+			mask, needs_medium, name);
+}
+
+static int do_scsi_command(struct fsg_common *common)
+{
+	struct fsg_buffhd	*bh;
+	int			rc;
+	int			reply = -EINVAL;
+	int			i;
+	static char		unknown[16];
+
+	dump_cdb(common);
+
+	/* Wait for the next buffer to become available for data or status */
+	bh = common->next_buffhd_to_fill;
+	common->next_buffhd_to_drain = bh;
+	while (bh->state != BUF_STATE_EMPTY) {
+		rc = sleep_thread(common);
+		if (rc)
+			return rc;
+	}
+	common->phase_error = 0;
+	common->short_packet_received = 0;
+
+	down_read(&common->filesem);	/* We're using the backing file */
+	switch (common->cmnd[0]) {
+
+	case INQUIRY:
+		common->data_size_from_cmnd = common->cmnd[4];
+		reply = check_command(common, 6, DATA_DIR_TO_HOST,
+				      (1<<4), 0,
+				      "INQUIRY");
+		if (reply == 0)
+			reply = do_inquiry(common, bh);
+		break;
+
+	case MODE_SELECT:
+		common->data_size_from_cmnd = common->cmnd[4];
+		reply = check_command(common, 6, DATA_DIR_FROM_HOST,
+				      (1<<1) | (1<<4), 0,
+				      "MODE SELECT(6)");
+		if (reply == 0)
+			reply = do_mode_select(common, bh);
+		break;
+
+	case MODE_SELECT_10:
+		common->data_size_from_cmnd =
+			get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command(common, 10, DATA_DIR_FROM_HOST,
+				      (1<<1) | (3<<7), 0,
+				      "MODE SELECT(10)");
+		if (reply == 0)
+			reply = do_mode_select(common, bh);
+		break;
+
+	case MODE_SENSE:
+		common->data_size_from_cmnd = common->cmnd[4];
+		reply = check_command(common, 6, DATA_DIR_TO_HOST,
+				      (1<<1) | (1<<2) | (1<<4), 0,
+				      "MODE SENSE(6)");
+		if (reply == 0)
+			reply = do_mode_sense(common, bh);
+		break;
+
+	case MODE_SENSE_10:
+		common->data_size_from_cmnd =
+			get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command(common, 10, DATA_DIR_TO_HOST,
+				      (1<<1) | (1<<2) | (3<<7), 0,
+				      "MODE SENSE(10)");
+		if (reply == 0)
+			reply = do_mode_sense(common, bh);
+		break;
+
+	case ALLOW_MEDIUM_REMOVAL:
+		common->data_size_from_cmnd = 0;
+		reply = check_command(common, 6, DATA_DIR_NONE,
+				      (1<<4), 0,
+				      "PREVENT-ALLOW MEDIUM REMOVAL");
+		if (reply == 0)
+			reply = do_prevent_allow(common);
+		break;
+
+	case READ_6:
+		i = common->cmnd[4];
+		common->data_size_from_cmnd = (i == 0) ? 256 : i;
+		reply = check_command_size_in_blocks(common, 6,
+				      DATA_DIR_TO_HOST,
+				      (7<<1) | (1<<4), 1,
+				      "READ(6)");
+		if (reply == 0)
+			reply = do_read(common);
+		break;
+
+	case READ_10:
+		common->data_size_from_cmnd =
+				get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command_size_in_blocks(common, 10,
+				      DATA_DIR_TO_HOST,
+				      (1<<1) | (0xf<<2) | (3<<7), 1,
+				      "READ(10)");
+		if (reply == 0)
+			reply = do_read(common);
+		break;
+
+	case READ_12:
+		common->data_size_from_cmnd =
+				get_unaligned_be32(&common->cmnd[6]);
+		reply = check_command_size_in_blocks(common, 12,
+				      DATA_DIR_TO_HOST,
+				      (1<<1) | (0xf<<2) | (0xf<<6), 1,
+				      "READ(12)");
+		if (reply == 0)
+			reply = do_read(common);
+		break;
+
+	case READ_CAPACITY:
+		common->data_size_from_cmnd = 8;
+		reply = check_command(common, 10, DATA_DIR_TO_HOST,
+				      (0xf<<2) | (1<<8), 1,
+				      "READ CAPACITY");
+		if (reply == 0)
+			reply = do_read_capacity(common, bh);
+		break;
+
+	case READ_HEADER:
+		if (!common->curlun || !common->curlun->cdrom)
+			goto unknown_cmnd;
+		common->data_size_from_cmnd =
+			get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command(common, 10, DATA_DIR_TO_HOST,
+				      (3<<7) | (0x1f<<1), 1,
+				      "READ HEADER");
+		if (reply == 0)
+			reply = do_read_header(common, bh);
+		break;
+
+	case READ_TOC:
+		if (!common->curlun || !common->curlun->cdrom)
+			goto unknown_cmnd;
+		common->data_size_from_cmnd =
+			get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command(common, 10, DATA_DIR_TO_HOST,
+				      (7<<6) | (1<<1), 1,
+				      "READ TOC");
+		if (reply == 0)
+			reply = do_read_toc(common, bh);
+		break;
+
+	case READ_FORMAT_CAPACITIES:
+		common->data_size_from_cmnd =
+			get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command(common, 10, DATA_DIR_TO_HOST,
+				      (3<<7), 1,
+				      "READ FORMAT CAPACITIES");
+		if (reply == 0)
+			reply = do_read_format_capacities(common, bh);
+		break;
+
+	case REQUEST_SENSE:
+		common->data_size_from_cmnd = common->cmnd[4];
+		reply = check_command(common, 6, DATA_DIR_TO_HOST,
+				      (1<<4), 0,
+				      "REQUEST SENSE");
+		if (reply == 0)
+			reply = do_request_sense(common, bh);
+		break;
+
+	case START_STOP:
+		common->data_size_from_cmnd = 0;
+		reply = check_command(common, 6, DATA_DIR_NONE,
+				      (1<<1) | (1<<4), 0,
+				      "START-STOP UNIT");
+		if (reply == 0)
+			reply = do_start_stop(common);
+		break;
+
+	case SYNCHRONIZE_CACHE:
+		common->data_size_from_cmnd = 0;
+		reply = check_command(common, 10, DATA_DIR_NONE,
+				      (0xf<<2) | (3<<7), 1,
+				      "SYNCHRONIZE CACHE");
+		if (reply == 0)
+			reply = do_synchronize_cache(common);
+		break;
+
+	case TEST_UNIT_READY:
+		common->data_size_from_cmnd = 0;
+		reply = check_command(common, 6, DATA_DIR_NONE,
+				0, 1,
+				"TEST UNIT READY");
+		break;
+
+	/*
+	 * Although optional, this command is used by MS-Windows.  We
+	 * support a minimal version: BytChk must be 0.
+	 */
+	case VERIFY:
+		common->data_size_from_cmnd = 0;
+		reply = check_command(common, 10, DATA_DIR_NONE,
+				      (1<<1) | (0xf<<2) | (3<<7), 1,
+				      "VERIFY");
+		if (reply == 0)
+			reply = do_verify(common);
+		break;
+
+	case WRITE_6:
+		i = common->cmnd[4];
+		common->data_size_from_cmnd = (i == 0) ? 256 : i;
+		reply = check_command_size_in_blocks(common, 6,
+				      DATA_DIR_FROM_HOST,
+				      (7<<1) | (1<<4), 1,
+				      "WRITE(6)");
+		if (reply == 0)
+			reply = do_write(common);
+		break;
+
+	case WRITE_10:
+		common->data_size_from_cmnd =
+				get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command_size_in_blocks(common, 10,
+				      DATA_DIR_FROM_HOST,
+				      (1<<1) | (0xf<<2) | (3<<7), 1,
+				      "WRITE(10)");
+		if (reply == 0)
+			reply = do_write(common);
+		break;
+
+	case WRITE_12:
+		common->data_size_from_cmnd =
+				get_unaligned_be32(&common->cmnd[6]);
+		reply = check_command_size_in_blocks(common, 12,
+				      DATA_DIR_FROM_HOST,
+				      (1<<1) | (0xf<<2) | (0xf<<6), 1,
+				      "WRITE(12)");
+		if (reply == 0)
+			reply = do_write(common);
+		break;
+
+	/*
+	 * Some mandatory commands that we recognize but don't implement.
+	 * They don't mean much in this setting.  It's left as an exercise
+	 * for anyone interested to implement RESERVE and RELEASE in terms
+	 * of Posix locks.
+	 */
+	case FORMAT_UNIT:
+	case RELEASE:
+	case RESERVE:
+	case SEND_DIAGNOSTIC:
+		/* Fall through */
+
+	default:
+unknown_cmnd:
+		common->data_size_from_cmnd = 0;
+		sprintf(unknown, "Unknown x%02x", common->cmnd[0]);
+		reply = check_command(common, common->cmnd_size,
+				      DATA_DIR_UNKNOWN, ~0, 0, unknown);
+		if (reply == 0) {
+			common->curlun->sense_data = SS_INVALID_COMMAND;
+			reply = -EINVAL;
+		}
+		break;
+	}
+	up_read(&common->filesem);
+
+	if (reply == -EINTR || signal_pending(current))
+		return -EINTR;
+
+	/* Set up the single reply buffer for finish_reply() */
+	if (reply == -EINVAL)
+		reply = 0;		/* Error reply length */
+	if (reply >= 0 && common->data_dir == DATA_DIR_TO_HOST) {
+		reply = min((u32)reply, common->data_size_from_cmnd);
+		bh->inreq->length = reply;
+		bh->state = BUF_STATE_FULL;
+		common->residue -= reply;
+	}				/* Otherwise it's already set */
+
+	return 0;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
+{
+	struct usb_request	*req = bh->outreq;
+	struct bulk_cb_wrap	*cbw = req->buf;
+	struct fsg_common	*common = fsg->common;
+
+	/* Was this a real packet?  Should it be ignored? */
+	if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))
+		return -EINVAL;
+
+	/* Is the CBW valid? */
+	if (req->actual != US_BULK_CB_WRAP_LEN ||
+			cbw->Signature != cpu_to_le32(
+				US_BULK_CB_SIGN)) {
+		DBG(fsg, "invalid CBW: len %u sig 0x%x\n",
+				req->actual,
+				le32_to_cpu(cbw->Signature));
+
+		/*
+		 * The Bulk-only spec says we MUST stall the IN endpoint
+		 * (6.6.1), so it's unavoidable.  It also says we must
+		 * retain this state until the next reset, but there's
+		 * no way to tell the controller driver it should ignore
+		 * Clear-Feature(HALT) requests.
+		 *
+		 * We aren't required to halt the OUT endpoint; instead
+		 * we can simply accept and discard any data received
+		 * until the next reset.
+		 */
+		wedge_bulk_in_endpoint(fsg);
+		set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
+		return -EINVAL;
+	}
+
+	/* Is the CBW meaningful? */
+	if (cbw->Lun >= FSG_MAX_LUNS || cbw->Flags & ~US_BULK_FLAG_IN ||
+			cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) {
+		DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "
+				"cmdlen %u\n",
+				cbw->Lun, cbw->Flags, cbw->Length);
+
+		/*
+		 * We can do anything we want here, so let's stall the
+		 * bulk pipes if we are allowed to.
+		 */
+		if (common->can_stall) {
+			fsg_set_halt(fsg, fsg->bulk_out);
+			halt_bulk_in_endpoint(fsg);
+		}
+		return -EINVAL;
+	}
+
+	/* Save the command for later */
+	common->cmnd_size = cbw->Length;
+	memcpy(common->cmnd, cbw->CDB, common->cmnd_size);
+	if (cbw->Flags & US_BULK_FLAG_IN)
+		common->data_dir = DATA_DIR_TO_HOST;
+	else
+		common->data_dir = DATA_DIR_FROM_HOST;
+	common->data_size = le32_to_cpu(cbw->DataTransferLength);
+	if (common->data_size == 0)
+		common->data_dir = DATA_DIR_NONE;
+	common->lun = cbw->Lun;
+	if (common->lun >= 0 && common->lun < common->nluns)
+		common->curlun = &common->luns[common->lun];
+	else
+		common->curlun = NULL;
+	common->tag = cbw->Tag;
+	return 0;
+}
+
+static int get_next_command(struct fsg_common *common)
+{
+	struct fsg_buffhd	*bh;
+	int			rc = 0;
+
+	/* Wait for the next buffer to become available */
+	bh = common->next_buffhd_to_fill;
+	while (bh->state != BUF_STATE_EMPTY) {
+		rc = sleep_thread(common);
+		if (rc)
+			return rc;
+	}
+
+	/* Queue a request to read a Bulk-only CBW */
+	set_bulk_out_req_length(common, bh, US_BULK_CB_WRAP_LEN);
+	if (!start_out_transfer(common, bh))
+		/* Don't know what to do if common->fsg is NULL */
+		return -EIO;
+
+	/*
+	 * We will drain the buffer in software, which means we
+	 * can reuse it for the next filling.  No need to advance
+	 * next_buffhd_to_fill.
+	 */
+
+	/* Wait for the CBW to arrive */
+	while (bh->state != BUF_STATE_FULL) {
+		rc = sleep_thread(common);
+		if (rc)
+			return rc;
+	}
+	smp_rmb();
+	rc = fsg_is_set(common) ? received_cbw(common->fsg, bh) : -EIO;
+	bh->state = BUF_STATE_EMPTY;
+
+	return rc;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int alloc_request(struct fsg_common *common, struct usb_ep *ep,
+		struct usb_request **preq)
+{
+	*preq = usb_ep_alloc_request(ep, GFP_ATOMIC);
+	if (*preq)
+		return 0;
+	ERROR(common, "can't allocate request for %s\n", ep->name);
+	return -ENOMEM;
+}
+
+/* Reset interface setting and re-init endpoint state (toggle etc). */
+static int do_set_interface(struct fsg_common *common, struct fsg_dev *new_fsg)
+{
+	struct fsg_dev *fsg;
+	int i, rc = 0;
+
+	if (common->running)
+		DBG(common, "reset interface\n");
+
+reset:
+	/* Deallocate the requests */
+	if (common->fsg) {
+		fsg = common->fsg;
+
+		for (i = 0; i < fsg_num_buffers; ++i) {
+			struct fsg_buffhd *bh = &common->buffhds[i];
+
+			if (bh->inreq) {
+				usb_ep_free_request(fsg->bulk_in, bh->inreq);
+				bh->inreq = NULL;
+			}
+			if (bh->outreq) {
+				usb_ep_free_request(fsg->bulk_out, bh->outreq);
+				bh->outreq = NULL;
+			}
+		}
+
+		/* Disable the endpoints */
+		if (fsg->bulk_in_enabled) {
+			usb_ep_disable(fsg->bulk_in);
+			fsg->bulk_in_enabled = 0;
+		}
+		if (fsg->bulk_out_enabled) {
+			usb_ep_disable(fsg->bulk_out);
+			fsg->bulk_out_enabled = 0;
+		}
+
+		common->fsg = NULL;
+		wake_up(&common->fsg_wait);
+	}
+
+	common->running = 0;
+	if (!new_fsg || rc)
+		return rc;
+
+	common->fsg = new_fsg;
+	fsg = common->fsg;
+
+	/* Enable the endpoints */
+	rc = config_ep_by_speed(common->gadget, &(fsg->function), fsg->bulk_in);
+	if (rc)
+		goto reset;
+	rc = usb_ep_enable(fsg->bulk_in);
+	if (rc)
+		goto reset;
+	fsg->bulk_in->driver_data = common;
+	fsg->bulk_in_enabled = 1;
+
+	rc = config_ep_by_speed(common->gadget, &(fsg->function),
+				fsg->bulk_out);
+	if (rc)
+		goto reset;
+	rc = usb_ep_enable(fsg->bulk_out);
+	if (rc)
+		goto reset;
+	fsg->bulk_out->driver_data = common;
+	fsg->bulk_out_enabled = 1;
+	common->bulk_out_maxpacket = usb_endpoint_maxp(fsg->bulk_out->desc);
+	clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
+
+	/* Allocate the requests */
+	for (i = 0; i < fsg_num_buffers; ++i) {
+		struct fsg_buffhd	*bh = &common->buffhds[i];
+
+		rc = alloc_request(common, fsg->bulk_in, &bh->inreq);
+		if (rc)
+			goto reset;
+		rc = alloc_request(common, fsg->bulk_out, &bh->outreq);
+		if (rc)
+			goto reset;
+		bh->inreq->buf = bh->outreq->buf = bh->buf;
+		bh->inreq->context = bh->outreq->context = bh;
+		bh->inreq->complete = bulk_in_complete;
+		bh->outreq->complete = bulk_out_complete;
+	}
+
+	common->running = 1;
+	for (i = 0; i < common->nluns; ++i)
+		common->luns[i].unit_attention_data = SS_RESET_OCCURRED;
+	return rc;
+}
+
+
+/****************************** ALT CONFIGS ******************************/
+
+static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
+{
+	struct fsg_dev *fsg = fsg_from_func(f);
+	fsg->common->new_fsg = fsg;
+	raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
+	return USB_GADGET_DELAYED_STATUS;
+}
+
+static void fsg_disable(struct usb_function *f)
+{
+	struct fsg_dev *fsg = fsg_from_func(f);
+	fsg->common->new_fsg = NULL;
+	raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static void handle_exception(struct fsg_common *common)
+{
+	siginfo_t		info;
+	int			i;
+	struct fsg_buffhd	*bh;
+	enum fsg_state		old_state;
+	struct fsg_lun		*curlun;
+	unsigned int		exception_req_tag;
+
+	/*
+	 * Clear the existing signals.  Anything but SIGUSR1 is converted
+	 * into a high-priority EXIT exception.
+	 */
+	for (;;) {
+		int sig =
+			dequeue_signal_lock(current, &current->blocked, &info);
+		if (!sig)
+			break;
+		if (sig != SIGUSR1) {
+			if (common->state < FSG_STATE_EXIT)
+				DBG(common, "Main thread exiting on signal\n");
+			raise_exception(common, FSG_STATE_EXIT);
+		}
+	}
+
+	/* Cancel all the pending transfers */
+	if (likely(common->fsg)) {
+		for (i = 0; i < fsg_num_buffers; ++i) {
+			bh = &common->buffhds[i];
+			if (bh->inreq_busy)
+				usb_ep_dequeue(common->fsg->bulk_in, bh->inreq);
+			if (bh->outreq_busy)
+				usb_ep_dequeue(common->fsg->bulk_out,
+					       bh->outreq);
+		}
+
+		/* Wait until everything is idle */
+		for (;;) {
+			int num_active = 0;
+			for (i = 0; i < fsg_num_buffers; ++i) {
+				bh = &common->buffhds[i];
+				num_active += bh->inreq_busy + bh->outreq_busy;
+			}
+			if (num_active == 0)
+				break;
+			if (sleep_thread(common))
+				return;
+		}
+
+		/* Clear out the controller's fifos */
+		if (common->fsg->bulk_in_enabled)
+			usb_ep_fifo_flush(common->fsg->bulk_in);
+		if (common->fsg->bulk_out_enabled)
+			usb_ep_fifo_flush(common->fsg->bulk_out);
+	}
+
+	/*
+	 * Reset the I/O buffer states and pointers, the SCSI
+	 * state, and the exception.  Then invoke the handler.
+	 */
+	spin_lock_irq(&common->lock);
+
+	for (i = 0; i < fsg_num_buffers; ++i) {
+		bh = &common->buffhds[i];
+		bh->state = BUF_STATE_EMPTY;
+	}
+	common->next_buffhd_to_fill = &common->buffhds[0];
+	common->next_buffhd_to_drain = &common->buffhds[0];
+	exception_req_tag = common->exception_req_tag;
+	old_state = common->state;
+
+	if (old_state == FSG_STATE_ABORT_BULK_OUT)
+		common->state = FSG_STATE_STATUS_PHASE;
+	else {
+		for (i = 0; i < common->nluns; ++i) {
+			curlun = &common->luns[i];
+			curlun->prevent_medium_removal = 0;
+			curlun->sense_data = SS_NO_SENSE;
+			curlun->unit_attention_data = SS_NO_SENSE;
+			curlun->sense_data_info = 0;
+			curlun->info_valid = 0;
+		}
+		common->state = FSG_STATE_IDLE;
+	}
+	spin_unlock_irq(&common->lock);
+
+	/* Carry out any extra actions required for the exception */
+	switch (old_state) {
+	case FSG_STATE_ABORT_BULK_OUT:
+		send_status(common);
+		spin_lock_irq(&common->lock);
+		if (common->state == FSG_STATE_STATUS_PHASE)
+			common->state = FSG_STATE_IDLE;
+		spin_unlock_irq(&common->lock);
+		break;
+
+	case FSG_STATE_RESET:
+		/*
+		 * In case we were forced against our will to halt a
+		 * bulk endpoint, clear the halt now.  (The SuperH UDC
+		 * requires this.)
+		 */
+		if (!fsg_is_set(common))
+			break;
+		if (test_and_clear_bit(IGNORE_BULK_OUT,
+				       &common->fsg->atomic_bitflags))
+			usb_ep_clear_halt(common->fsg->bulk_in);
+
+		if (common->ep0_req_tag == exception_req_tag)
+			ep0_queue(common);	/* Complete the status stage */
+
+		/*
+		 * Technically this should go here, but it would only be
+		 * a waste of time.  Ditto for the INTERFACE_CHANGE and
+		 * CONFIG_CHANGE cases.
+		 */
+		/* for (i = 0; i < common->nluns; ++i) */
+		/*	common->luns[i].unit_attention_data = */
+		/*		SS_RESET_OCCURRED;  */
+		break;
+
+	case FSG_STATE_CONFIG_CHANGE:
+		do_set_interface(common, common->new_fsg);
+		if (common->new_fsg)
+			usb_composite_setup_continue(common->cdev);
+		break;
+
+	case FSG_STATE_EXIT:
+	case FSG_STATE_TERMINATED:
+		do_set_interface(common, NULL);		/* Free resources */
+		spin_lock_irq(&common->lock);
+		common->state = FSG_STATE_TERMINATED;	/* Stop the thread */
+		spin_unlock_irq(&common->lock);
+		break;
+
+	case FSG_STATE_INTERFACE_CHANGE:
+	case FSG_STATE_DISCONNECT:
+	case FSG_STATE_COMMAND_PHASE:
+	case FSG_STATE_DATA_PHASE:
+	case FSG_STATE_STATUS_PHASE:
+	case FSG_STATE_IDLE:
+		break;
+	}
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int fsg_main_thread(void *common_)
+{
+	struct fsg_common	*common = common_;
+
+	/*
+	 * Allow the thread to be killed by a signal, but set the signal mask
+	 * to block everything but INT, TERM, KILL, and USR1.
+	 */
+	allow_signal(SIGINT);
+	allow_signal(SIGTERM);
+	allow_signal(SIGKILL);
+	allow_signal(SIGUSR1);
+
+	/* Allow the thread to be frozen */
+	set_freezable();
+
+	/*
+	 * Arrange for userspace references to be interpreted as kernel
+	 * pointers.  That way we can pass a kernel pointer to a routine
+	 * that expects a __user pointer and it will work okay.
+	 */
+	set_fs(get_ds());
+
+	/* The main loop */
+	while (common->state != FSG_STATE_TERMINATED) {
+		if (exception_in_progress(common) || signal_pending(current)) {
+			handle_exception(common);
+			continue;
+		}
+
+		if (!common->running) {
+			sleep_thread(common);
+			continue;
+		}
+
+		if (get_next_command(common))
+			continue;
+
+		spin_lock_irq(&common->lock);
+		if (!exception_in_progress(common))
+			common->state = FSG_STATE_DATA_PHASE;
+		spin_unlock_irq(&common->lock);
+
+		if (do_scsi_command(common) || finish_reply(common))
+			continue;
+
+		spin_lock_irq(&common->lock);
+		if (!exception_in_progress(common))
+			common->state = FSG_STATE_STATUS_PHASE;
+		spin_unlock_irq(&common->lock);
+
+		if (send_status(common))
+			continue;
+
+		spin_lock_irq(&common->lock);
+		if (!exception_in_progress(common))
+			common->state = FSG_STATE_IDLE;
+		spin_unlock_irq(&common->lock);
+	}
+
+	spin_lock_irq(&common->lock);
+	common->thread_task = NULL;
+	spin_unlock_irq(&common->lock);
+
+	if (!common->ops || !common->ops->thread_exits
+	 || common->ops->thread_exits(common) < 0) {
+		struct fsg_lun *curlun = common->luns;
+		unsigned i = common->nluns;
+
+		down_write(&common->filesem);
+		for (; i--; ++curlun) {
+			if (!fsg_lun_is_open(curlun))
+				continue;
+
+			fsg_lun_close(curlun);
+			curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
+		}
+		up_write(&common->filesem);
+	}
+
+	/* Let fsg_unbind() know the thread has exited */
+	complete_and_exit(&common->thread_notifier, 0);
+}
+
+
+/*************************** DEVICE ATTRIBUTES ***************************/
+
+static DEVICE_ATTR(ro, 0644, fsg_show_ro, fsg_store_ro);
+static DEVICE_ATTR(nofua, 0644, fsg_show_nofua, fsg_store_nofua);
+static DEVICE_ATTR(file, 0644, fsg_show_file, fsg_store_file);
+
+static struct device_attribute dev_attr_ro_cdrom =
+	__ATTR(ro, 0444, fsg_show_ro, NULL);
+static struct device_attribute dev_attr_file_nonremovable =
+	__ATTR(file, 0444, fsg_show_file, NULL);
+
+
+/****************************** FSG COMMON ******************************/
+
+static void fsg_common_release(struct kref *ref);
+
+static void fsg_lun_release(struct device *dev)
+{
+	/* Nothing needs to be done */
+}
+
+static inline void fsg_common_get(struct fsg_common *common)
+{
+	kref_get(&common->ref);
+}
+
+static inline void fsg_common_put(struct fsg_common *common)
+{
+	kref_put(&common->ref, fsg_common_release);
+}
+
+static struct fsg_common *fsg_common_init(struct fsg_common *common,
+					  struct usb_composite_dev *cdev,
+					  struct fsg_config *cfg)
+{
+	struct usb_gadget *gadget = cdev->gadget;
+	struct fsg_buffhd *bh;
+	struct fsg_lun *curlun;
+	struct fsg_lun_config *lcfg;
+	int nluns, i, rc;
+	char *pathbuf;
+
+	rc = fsg_num_buffers_validate();
+	if (rc != 0)
+		return ERR_PTR(rc);
+
+	/* Find out how many LUNs there should be */
+	nluns = cfg->nluns;
+	if (nluns < 1 || nluns > FSG_MAX_LUNS) {
+		dev_err(&gadget->dev, "invalid number of LUNs: %u\n", nluns);
+		return ERR_PTR(-EINVAL);
+	}
+
+	/* Allocate? */
+	if (!common) {
+		common = kzalloc(sizeof *common, GFP_KERNEL);
+		if (!common)
+			return ERR_PTR(-ENOMEM);
+		common->free_storage_on_release = 1;
+	} else {
+		memset(common, 0, sizeof *common);
+		common->free_storage_on_release = 0;
+	}
+
+	common->buffhds = kcalloc(fsg_num_buffers,
+				  sizeof *(common->buffhds), GFP_KERNEL);
+	if (!common->buffhds) {
+		if (common->free_storage_on_release)
+			kfree(common);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	common->ops = cfg->ops;
+	common->private_data = cfg->private_data;
+
+	common->gadget = gadget;
+	common->ep0 = gadget->ep0;
+	common->ep0req = cdev->req;
+	common->cdev = cdev;
+
+	/* Maybe allocate device-global string IDs, and patch descriptors */
+	if (fsg_strings[FSG_STRING_INTERFACE].id == 0) {
+		rc = usb_string_id(cdev);
+		if (unlikely(rc < 0))
+			goto error_release;
+		fsg_strings[FSG_STRING_INTERFACE].id = rc;
+		fsg_intf_desc.iInterface = rc;
+	}
+
+	/*
+	 * Create the LUNs, open their backing files, and register the
+	 * LUN devices in sysfs.
+	 */
+	curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL);
+	if (unlikely(!curlun)) {
+		rc = -ENOMEM;
+		goto error_release;
+	}
+	common->luns = curlun;
+
+	init_rwsem(&common->filesem);
+
+	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun, ++lcfg) {
+		curlun->cdrom = !!lcfg->cdrom;
+		curlun->ro = lcfg->cdrom || lcfg->ro;
+		curlun->initially_ro = curlun->ro;
+		curlun->removable = lcfg->removable;
+		curlun->dev.release = fsg_lun_release;
+		curlun->dev.parent = &gadget->dev;
+		/* curlun->dev.driver = &fsg_driver.driver; XXX */
+		dev_set_drvdata(&curlun->dev, &common->filesem);
+		dev_set_name(&curlun->dev, "lun%d", i);
+
+		rc = device_register(&curlun->dev);
+		if (rc) {
+			INFO(common, "failed to register LUN%d: %d\n", i, rc);
+			common->nluns = i;
+			put_device(&curlun->dev);
+			goto error_release;
+		}
+
+		rc = device_create_file(&curlun->dev,
+					curlun->cdrom
+				      ? &dev_attr_ro_cdrom
+				      : &dev_attr_ro);
+		if (rc)
+			goto error_luns;
+		rc = device_create_file(&curlun->dev,
+					curlun->removable
+				      ? &dev_attr_file
+				      : &dev_attr_file_nonremovable);
+		if (rc)
+			goto error_luns;
+		rc = device_create_file(&curlun->dev, &dev_attr_nofua);
+		if (rc)
+			goto error_luns;
+
+		if (lcfg->filename) {
+			rc = fsg_lun_open(curlun, lcfg->filename);
+			if (rc)
+				goto error_luns;
+		} else if (!curlun->removable) {
+			ERROR(common, "no file given for LUN%d\n", i);
+			rc = -EINVAL;
+			goto error_luns;
+		}
+	}
+	common->nluns = nluns;
+
+	/* Data buffers cyclic list */
+	bh = common->buffhds;
+	i = fsg_num_buffers;
+	goto buffhds_first_it;
+	do {
+		bh->next = bh + 1;
+		++bh;
+buffhds_first_it:
+		bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL);
+		if (unlikely(!bh->buf)) {
+			rc = -ENOMEM;
+			goto error_release;
+		}
+	} while (--i);
+	bh->next = common->buffhds;
+
+	/* Prepare inquiryString */
+	if (cfg->release != 0xffff) {
+		i = cfg->release;
+	} else {
+		i = usb_gadget_controller_number(gadget);
+		if (i >= 0) {
+			i = 0x0300 + i;
+		} else {
+			WARNING(common, "controller '%s' not recognized\n",
+				gadget->name);
+			i = 0x0399;
+		}
+	}
+	snprintf(common->inquiry_string, sizeof common->inquiry_string,
+		 "%-8s%-16s%04x", cfg->vendor_name ?: "Linux",
+		 /* Assume product name dependent on the first LUN */
+		 cfg->product_name ?: (common->luns->cdrom
+				     ? "File-Stor Gadget"
+				     : "File-CD Gadget"),
+		 i);
+
+	/*
+	 * Some peripheral controllers are known not to be able to
+	 * halt bulk endpoints correctly.  If one of them is present,
+	 * disable stalls.
+	 */
+	common->can_stall = cfg->can_stall &&
+		!(gadget_is_at91(common->gadget));
+
+	spin_lock_init(&common->lock);
+	kref_init(&common->ref);
+
+	/* Tell the thread to start working */
+	common->thread_task =
+		kthread_create(fsg_main_thread, common, "file-storage");
+	if (IS_ERR(common->thread_task)) {
+		rc = PTR_ERR(common->thread_task);
+		goto error_release;
+	}
+	init_completion(&common->thread_notifier);
+	init_waitqueue_head(&common->fsg_wait);
+
+	/* Information */
+	INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
+	INFO(common, "Number of LUNs=%d\n", common->nluns);
+
+	pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
+	for (i = 0, nluns = common->nluns, curlun = common->luns;
+	     i < nluns;
+	     ++curlun, ++i) {
+		char *p = "(no medium)";
+		if (fsg_lun_is_open(curlun)) {
+			p = "(error)";
+			if (pathbuf) {
+				p = d_path(&curlun->filp->f_path,
+					   pathbuf, PATH_MAX);
+				if (IS_ERR(p))
+					p = "(error)";
+			}
+		}
+		LINFO(curlun, "LUN: %s%s%sfile: %s\n",
+		      curlun->removable ? "removable " : "",
+		      curlun->ro ? "read only " : "",
+		      curlun->cdrom ? "CD-ROM " : "",
+		      p);
+	}
+	kfree(pathbuf);
+
+	DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
+
+	wake_up_process(common->thread_task);
+
+	return common;
+
+error_luns:
+	common->nluns = i + 1;
+error_release:
+	common->state = FSG_STATE_TERMINATED;	/* The thread is dead */
+	/* Call fsg_common_release() directly, ref might be not initialised. */
+	fsg_common_release(&common->ref);
+	return ERR_PTR(rc);
+}
+
+static void fsg_common_release(struct kref *ref)
+{
+	struct fsg_common *common = container_of(ref, struct fsg_common, ref);
+
+	/* If the thread isn't already dead, tell it to exit now */
+	if (common->state != FSG_STATE_TERMINATED) {
+		raise_exception(common, FSG_STATE_EXIT);
+		wait_for_completion(&common->thread_notifier);
+	}
+
+	if (likely(common->luns)) {
+		struct fsg_lun *lun = common->luns;
+		unsigned i = common->nluns;
+
+		/* In error recovery common->nluns may be zero. */
+		for (; i; --i, ++lun) {
+			device_remove_file(&lun->dev, &dev_attr_nofua);
+			device_remove_file(&lun->dev,
+					   lun->cdrom
+					 ? &dev_attr_ro_cdrom
+					 : &dev_attr_ro);
+			device_remove_file(&lun->dev,
+					   lun->removable
+					 ? &dev_attr_file
+					 : &dev_attr_file_nonremovable);
+			fsg_lun_close(lun);
+			device_unregister(&lun->dev);
+		}
+
+		kfree(common->luns);
+	}
+
+	{
+		struct fsg_buffhd *bh = common->buffhds;
+		unsigned i = fsg_num_buffers;
+		do {
+			kfree(bh->buf);
+		} while (++bh, --i);
+	}
+
+	kfree(common->buffhds);
+	if (common->free_storage_on_release)
+		kfree(common);
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static void fsg_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct fsg_dev		*fsg = fsg_from_func(f);
+	struct fsg_common	*common = fsg->common;
+
+	DBG(fsg, "unbind\n");
+	if (fsg->common->fsg == fsg) {
+		fsg->common->new_fsg = NULL;
+		raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
+		/* FIXME: make interruptible or killable somehow? */
+		wait_event(common->fsg_wait, common->fsg != fsg);
+	}
+
+	fsg_common_put(common);
+	usb_free_descriptors(fsg->function.descriptors);
+	usb_free_descriptors(fsg->function.hs_descriptors);
+	usb_free_descriptors(fsg->function.ss_descriptors);
+	kfree(fsg);
+}
+
+static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct fsg_dev		*fsg = fsg_from_func(f);
+	struct usb_gadget	*gadget = c->cdev->gadget;
+	int			i;
+	struct usb_ep		*ep;
+
+	fsg->gadget = gadget;
+
+	/* New interface */
+	i = usb_interface_id(c, f);
+	if (i < 0)
+		return i;
+	fsg_intf_desc.bInterfaceNumber = i;
+	fsg->interface_number = i;
+
+	/* Find all the endpoints we will use */
+	ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_in_desc);
+	if (!ep)
+		goto autoconf_fail;
+	ep->driver_data = fsg->common;	/* claim the endpoint */
+	fsg->bulk_in = ep;
+
+	ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_out_desc);
+	if (!ep)
+		goto autoconf_fail;
+	ep->driver_data = fsg->common;	/* claim the endpoint */
+	fsg->bulk_out = ep;
+
+	/* Copy descriptors */
+	f->descriptors = usb_copy_descriptors(fsg_fs_function);
+	if (unlikely(!f->descriptors))
+		return -ENOMEM;
+
+	if (gadget_is_dualspeed(gadget)) {
+		/* Assume endpoint addresses are the same for both speeds */
+		fsg_hs_bulk_in_desc.bEndpointAddress =
+			fsg_fs_bulk_in_desc.bEndpointAddress;
+		fsg_hs_bulk_out_desc.bEndpointAddress =
+			fsg_fs_bulk_out_desc.bEndpointAddress;
+		f->hs_descriptors = usb_copy_descriptors(fsg_hs_function);
+		if (unlikely(!f->hs_descriptors)) {
+			usb_free_descriptors(f->descriptors);
+			return -ENOMEM;
+		}
+	}
+
+	if (gadget_is_superspeed(gadget)) {
+		unsigned	max_burst;
+
+		/* Calculate bMaxBurst, we know packet size is 1024 */
+		max_burst = min_t(unsigned, FSG_BUFLEN / 1024, 15);
+
+		fsg_ss_bulk_in_desc.bEndpointAddress =
+			fsg_fs_bulk_in_desc.bEndpointAddress;
+		fsg_ss_bulk_in_comp_desc.bMaxBurst = max_burst;
+
+		fsg_ss_bulk_out_desc.bEndpointAddress =
+			fsg_fs_bulk_out_desc.bEndpointAddress;
+		fsg_ss_bulk_out_comp_desc.bMaxBurst = max_burst;
+
+		f->ss_descriptors = usb_copy_descriptors(fsg_ss_function);
+		if (unlikely(!f->ss_descriptors)) {
+			usb_free_descriptors(f->hs_descriptors);
+			usb_free_descriptors(f->descriptors);
+			return -ENOMEM;
+		}
+	}
+
+	return 0;
+
+autoconf_fail:
+	ERROR(fsg, "unable to autoconfigure all endpoints\n");
+	return -ENOTSUPP;
+}
+
+
+/****************************** ADD FUNCTION ******************************/
+
+static struct usb_gadget_strings *fsg_strings_array[] = {
+	&fsg_stringtab,
+	NULL,
+};
+
+static int fsg_bind_config(struct usb_composite_dev *cdev,
+			   struct usb_configuration *c,
+			   struct fsg_common *common)
+{
+	struct fsg_dev *fsg;
+	int rc;
+
+	fsg = kzalloc(sizeof *fsg, GFP_KERNEL);
+	if (unlikely(!fsg))
+		return -ENOMEM;
+
+	fsg->function.name        = FSG_DRIVER_DESC;
+	fsg->function.strings     = fsg_strings_array;
+	fsg->function.bind        = fsg_bind;
+	fsg->function.unbind      = fsg_unbind;
+	fsg->function.setup       = fsg_setup;
+	fsg->function.set_alt     = fsg_set_alt;
+	fsg->function.disable     = fsg_disable;
+
+	fsg->common               = common;
+	/*
+	 * Our caller holds a reference to common structure so we
+	 * don't have to be worry about it being freed until we return
+	 * from this function.  So instead of incrementing counter now
+	 * and decrement in error recovery we increment it only when
+	 * call to usb_add_function() was successful.
+	 */
+
+	rc = usb_add_function(c, &fsg->function);
+	if (unlikely(rc))
+		kfree(fsg);
+	else
+		fsg_common_get(fsg->common);
+	return rc;
+}
+
+
+/************************* Module parameters *************************/
+
+struct fsg_module_parameters {
+	char		*file[FSG_MAX_LUNS];
+	bool		ro[FSG_MAX_LUNS];
+	bool		removable[FSG_MAX_LUNS];
+	bool		cdrom[FSG_MAX_LUNS];
+	bool		nofua[FSG_MAX_LUNS];
+
+	unsigned int	file_count, ro_count, removable_count, cdrom_count;
+	unsigned int	nofua_count;
+	unsigned int	luns;	/* nluns */
+	bool		stall;	/* can_stall */
+};
+
+#define _FSG_MODULE_PARAM_ARRAY(prefix, params, name, type, desc)	\
+	module_param_array_named(prefix ## name, params.name, type,	\
+				 &prefix ## params.name ## _count,	\
+				 S_IRUGO);				\
+	MODULE_PARM_DESC(prefix ## name, desc)
+
+#define _FSG_MODULE_PARAM(prefix, params, name, type, desc)		\
+	module_param_named(prefix ## name, params.name, type,		\
+			   S_IRUGO);					\
+	MODULE_PARM_DESC(prefix ## name, desc)
+
+#define FSG_MODULE_PARAMETERS(prefix, params)				\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp,		\
+				"names of backing files or devices");	\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool,		\
+				"true to force read-only");		\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, removable, bool,	\
+				"true to simulate removable media");	\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, cdrom, bool,		\
+				"true to simulate CD-ROM instead of disk"); \
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, nofua, bool,		\
+				"true to ignore SCSI WRITE(10,12) FUA bit"); \
+	_FSG_MODULE_PARAM(prefix, params, luns, uint,			\
+			  "number of LUNs");				\
+	_FSG_MODULE_PARAM(prefix, params, stall, bool,			\
+			  "false to prevent bulk stalls")
+
+static void
+fsg_config_from_params(struct fsg_config *cfg,
+		       const struct fsg_module_parameters *params)
+{
+	struct fsg_lun_config *lun;
+	unsigned i;
+
+	/* Configure LUNs */
+	cfg->nluns =
+		min(params->luns ?: (params->file_count ?: 1u),
+		    (unsigned)FSG_MAX_LUNS);
+	for (i = 0, lun = cfg->luns; i < cfg->nluns; ++i, ++lun) {
+		lun->ro = !!params->ro[i];
+		lun->cdrom = !!params->cdrom[i];
+		lun->removable = !!params->removable[i];
+		lun->filename =
+			params->file_count > i && params->file[i][0]
+			? params->file[i]
+			: 0;
+	}
+
+	/* Let MSF use defaults */
+	cfg->vendor_name = 0;
+	cfg->product_name = 0;
+	cfg->release = 0xffff;
+
+	cfg->ops = NULL;
+	cfg->private_data = NULL;
+
+	/* Finalise */
+	cfg->can_stall = params->stall;
+}
+
+static inline struct fsg_common *
+fsg_common_from_params(struct fsg_common *common,
+		       struct usb_composite_dev *cdev,
+		       const struct fsg_module_parameters *params)
+	__attribute__((unused));
+static inline struct fsg_common *
+fsg_common_from_params(struct fsg_common *common,
+		       struct usb_composite_dev *cdev,
+		       const struct fsg_module_parameters *params)
+{
+	struct fsg_config cfg;
+	fsg_config_from_params(&cfg, params);
+	return fsg_common_init(common, cdev, &cfg);
+}
diff --git a/drivers/staging/ccg/f_rndis.c b/drivers/staging/ccg/f_rndis.c
new file mode 100644
index 00000000000..b1681e45aca
--- /dev/null
+++ b/drivers/staging/ccg/f_rndis.c
@@ -0,0 +1,918 @@
+/*
+ * f_rndis.c -- RNDIS link function driver
+ *
+ * Copyright (C) 2003-2005,2008 David Brownell
+ * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
+ * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2009 Samsung Electronics
+ *                    Author: Michal Nazarewicz (mina86@mina86.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/* #define VERBOSE_DEBUG */
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/etherdevice.h>
+
+#include <linux/atomic.h>
+
+#include "u_ether.h"
+#include "rndis.h"
+
+
+/*
+ * This function is an RNDIS Ethernet port -- a Microsoft protocol that's
+ * been promoted instead of the standard CDC Ethernet.  The published RNDIS
+ * spec is ambiguous, incomplete, and needlessly complex.  Variants such as
+ * ActiveSync have even worse status in terms of specification.
+ *
+ * In short:  it's a protocol controlled by (and for) Microsoft, not for an
+ * Open ecosystem or markets.  Linux supports it *only* because Microsoft
+ * doesn't support the CDC Ethernet standard.
+ *
+ * The RNDIS data transfer model is complex, with multiple Ethernet packets
+ * per USB message, and out of band data.  The control model is built around
+ * what's essentially an "RNDIS RPC" protocol.  It's all wrapped in a CDC ACM
+ * (modem, not Ethernet) veneer, with those ACM descriptors being entirely
+ * useless (they're ignored).  RNDIS expects to be the only function in its
+ * configuration, so it's no real help if you need composite devices; and
+ * it expects to be the first configuration too.
+ *
+ * There is a single technical advantage of RNDIS over CDC Ethernet, if you
+ * discount the fluff that its RPC can be made to deliver: it doesn't need
+ * a NOP altsetting for the data interface.  That lets it work on some of the
+ * "so smart it's stupid" hardware which takes over configuration changes
+ * from the software, and adds restrictions like "no altsettings".
+ *
+ * Unfortunately MSFT's RNDIS drivers are buggy.  They hang or oops, and
+ * have all sorts of contrary-to-specification oddities that can prevent
+ * them from working sanely.  Since bugfixes (or accurate specs, letting
+ * Linux work around those bugs) are unlikely to ever come from MSFT, you
+ * may want to avoid using RNDIS on purely operational grounds.
+ *
+ * Omissions from the RNDIS 1.0 specification include:
+ *
+ *   - Power management ... references data that's scattered around lots
+ *     of other documentation, which is incorrect/incomplete there too.
+ *
+ *   - There are various undocumented protocol requirements, like the need
+ *     to send garbage in some control-OUT messages.
+ *
+ *   - MS-Windows drivers sometimes emit undocumented requests.
+ */
+
+struct f_rndis {
+	struct gether			port;
+	u8				ctrl_id, data_id;
+	u8				ethaddr[ETH_ALEN];
+	u32				vendorID;
+	const char			*manufacturer;
+	int				config;
+
+	struct usb_ep			*notify;
+	struct usb_request		*notify_req;
+	atomic_t			notify_count;
+};
+
+static inline struct f_rndis *func_to_rndis(struct usb_function *f)
+{
+	return container_of(f, struct f_rndis, port.func);
+}
+
+/* peak (theoretical) bulk transfer rate in bits-per-second */
+static unsigned int bitrate(struct usb_gadget *g)
+{
+	if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
+		return 13 * 1024 * 8 * 1000 * 8;
+	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
+		return 13 * 512 * 8 * 1000 * 8;
+	else
+		return 19 * 64 * 1 * 1000 * 8;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ */
+
+#define LOG2_STATUS_INTERVAL_MSEC	5	/* 1 << 5 == 32 msec */
+#define STATUS_BYTECOUNT		8	/* 8 bytes data */
+
+
+/* interface descriptor: */
+
+static struct usb_interface_descriptor rndis_control_intf = {
+	.bLength =		sizeof rndis_control_intf,
+	.bDescriptorType =	USB_DT_INTERFACE,
+
+	/* .bInterfaceNumber = DYNAMIC */
+	/* status endpoint is optional; this could be patched later */
+	.bNumEndpoints =	1,
+	.bInterfaceClass =	USB_CLASS_COMM,
+	.bInterfaceSubClass =   USB_CDC_SUBCLASS_ACM,
+	.bInterfaceProtocol =   USB_CDC_ACM_PROTO_VENDOR,
+	/* .iInterface = DYNAMIC */
+};
+
+static struct usb_cdc_header_desc header_desc = {
+	.bLength =		sizeof header_desc,
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_HEADER_TYPE,
+
+	.bcdCDC =		cpu_to_le16(0x0110),
+};
+
+static struct usb_cdc_call_mgmt_descriptor call_mgmt_descriptor = {
+	.bLength =		sizeof call_mgmt_descriptor,
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_CALL_MANAGEMENT_TYPE,
+
+	.bmCapabilities =	0x00,
+	.bDataInterface =	0x01,
+};
+
+static struct usb_cdc_acm_descriptor rndis_acm_descriptor = {
+	.bLength =		sizeof rndis_acm_descriptor,
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_ACM_TYPE,
+
+	.bmCapabilities =	0x00,
+};
+
+static struct usb_cdc_union_desc rndis_union_desc = {
+	.bLength =		sizeof(rndis_union_desc),
+	.bDescriptorType =	USB_DT_CS_INTERFACE,
+	.bDescriptorSubType =	USB_CDC_UNION_TYPE,
+	/* .bMasterInterface0 =	DYNAMIC */
+	/* .bSlaveInterface0 =	DYNAMIC */
+};
+
+/* the data interface has two bulk endpoints */
+
+static struct usb_interface_descriptor rndis_data_intf = {
+	.bLength =		sizeof rndis_data_intf,
+	.bDescriptorType =	USB_DT_INTERFACE,
+
+	/* .bInterfaceNumber = DYNAMIC */
+	.bNumEndpoints =	2,
+	.bInterfaceClass =	USB_CLASS_CDC_DATA,
+	.bInterfaceSubClass =	0,
+	.bInterfaceProtocol =	0,
+	/* .iInterface = DYNAMIC */
+};
+
+
+static struct usb_interface_assoc_descriptor
+rndis_iad_descriptor = {
+	.bLength =		sizeof rndis_iad_descriptor,
+	.bDescriptorType =	USB_DT_INTERFACE_ASSOCIATION,
+
+	.bFirstInterface =	0, /* XXX, hardcoded */
+	.bInterfaceCount = 	2,	// control + data
+	.bFunctionClass =	USB_CLASS_COMM,
+	.bFunctionSubClass =	USB_CDC_SUBCLASS_ETHERNET,
+	.bFunctionProtocol =	USB_CDC_PROTO_NONE,
+	/* .iFunction = DYNAMIC */
+};
+
+/* full speed support: */
+
+static struct usb_endpoint_descriptor fs_notify_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(STATUS_BYTECOUNT),
+	.bInterval =		1 << LOG2_STATUS_INTERVAL_MSEC,
+};
+
+static struct usb_endpoint_descriptor fs_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_endpoint_descriptor fs_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+};
+
+static struct usb_descriptor_header *eth_fs_function[] = {
+	(struct usb_descriptor_header *) &rndis_iad_descriptor,
+
+	/* control interface matches ACM, not Ethernet */
+	(struct usb_descriptor_header *) &rndis_control_intf,
+	(struct usb_descriptor_header *) &header_desc,
+	(struct usb_descriptor_header *) &call_mgmt_descriptor,
+	(struct usb_descriptor_header *) &rndis_acm_descriptor,
+	(struct usb_descriptor_header *) &rndis_union_desc,
+	(struct usb_descriptor_header *) &fs_notify_desc,
+
+	/* data interface has no altsetting */
+	(struct usb_descriptor_header *) &rndis_data_intf,
+	(struct usb_descriptor_header *) &fs_in_desc,
+	(struct usb_descriptor_header *) &fs_out_desc,
+	NULL,
+};
+
+/* high speed support: */
+
+static struct usb_endpoint_descriptor hs_notify_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(STATUS_BYTECOUNT),
+	.bInterval =		LOG2_STATUS_INTERVAL_MSEC + 4,
+};
+
+static struct usb_endpoint_descriptor hs_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512),
+};
+
+static struct usb_endpoint_descriptor hs_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512),
+};
+
+static struct usb_descriptor_header *eth_hs_function[] = {
+	(struct usb_descriptor_header *) &rndis_iad_descriptor,
+
+	/* control interface matches ACM, not Ethernet */
+	(struct usb_descriptor_header *) &rndis_control_intf,
+	(struct usb_descriptor_header *) &header_desc,
+	(struct usb_descriptor_header *) &call_mgmt_descriptor,
+	(struct usb_descriptor_header *) &rndis_acm_descriptor,
+	(struct usb_descriptor_header *) &rndis_union_desc,
+	(struct usb_descriptor_header *) &hs_notify_desc,
+
+	/* data interface has no altsetting */
+	(struct usb_descriptor_header *) &rndis_data_intf,
+	(struct usb_descriptor_header *) &hs_in_desc,
+	(struct usb_descriptor_header *) &hs_out_desc,
+	NULL,
+};
+
+/* super speed support: */
+
+static struct usb_endpoint_descriptor ss_notify_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(STATUS_BYTECOUNT),
+	.bInterval =		LOG2_STATUS_INTERVAL_MSEC + 4,
+};
+
+static struct usb_ss_ep_comp_descriptor ss_intr_comp_desc = {
+	.bLength =		sizeof ss_intr_comp_desc,
+	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
+
+	/* the following 3 values can be tweaked if necessary */
+	/* .bMaxBurst =		0, */
+	/* .bmAttributes =	0, */
+	.wBytesPerInterval =	cpu_to_le16(STATUS_BYTECOUNT),
+};
+
+static struct usb_endpoint_descriptor ss_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(1024),
+};
+
+static struct usb_endpoint_descriptor ss_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor ss_bulk_comp_desc = {
+	.bLength =		sizeof ss_bulk_comp_desc,
+	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
+
+	/* the following 2 values can be tweaked if necessary */
+	/* .bMaxBurst =		0, */
+	/* .bmAttributes =	0, */
+};
+
+static struct usb_descriptor_header *eth_ss_function[] = {
+	(struct usb_descriptor_header *) &rndis_iad_descriptor,
+
+	/* control interface matches ACM, not Ethernet */
+	(struct usb_descriptor_header *) &rndis_control_intf,
+	(struct usb_descriptor_header *) &header_desc,
+	(struct usb_descriptor_header *) &call_mgmt_descriptor,
+	(struct usb_descriptor_header *) &rndis_acm_descriptor,
+	(struct usb_descriptor_header *) &rndis_union_desc,
+	(struct usb_descriptor_header *) &ss_notify_desc,
+	(struct usb_descriptor_header *) &ss_intr_comp_desc,
+
+	/* data interface has no altsetting */
+	(struct usb_descriptor_header *) &rndis_data_intf,
+	(struct usb_descriptor_header *) &ss_in_desc,
+	(struct usb_descriptor_header *) &ss_bulk_comp_desc,
+	(struct usb_descriptor_header *) &ss_out_desc,
+	(struct usb_descriptor_header *) &ss_bulk_comp_desc,
+	NULL,
+};
+
+/* string descriptors: */
+
+static struct usb_string rndis_string_defs[] = {
+	[0].s = "RNDIS Communications Control",
+	[1].s = "RNDIS Ethernet Data",
+	[2].s = "RNDIS",
+	{  } /* end of list */
+};
+
+static struct usb_gadget_strings rndis_string_table = {
+	.language =		0x0409,	/* en-us */
+	.strings =		rndis_string_defs,
+};
+
+static struct usb_gadget_strings *rndis_strings[] = {
+	&rndis_string_table,
+	NULL,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static struct sk_buff *rndis_add_header(struct gether *port,
+					struct sk_buff *skb)
+{
+	struct sk_buff *skb2;
+
+	skb2 = skb_realloc_headroom(skb, sizeof(struct rndis_packet_msg_type));
+	if (skb2)
+		rndis_add_hdr(skb2);
+
+	dev_kfree_skb_any(skb);
+	return skb2;
+}
+
+static void rndis_response_available(void *_rndis)
+{
+	struct f_rndis			*rndis = _rndis;
+	struct usb_request		*req = rndis->notify_req;
+	struct usb_composite_dev	*cdev = rndis->port.func.config->cdev;
+	__le32				*data = req->buf;
+	int				status;
+
+	if (atomic_inc_return(&rndis->notify_count) != 1)
+		return;
+
+	/* Send RNDIS RESPONSE_AVAILABLE notification; a
+	 * USB_CDC_NOTIFY_RESPONSE_AVAILABLE "should" work too
+	 *
+	 * This is the only notification defined by RNDIS.
+	 */
+	data[0] = cpu_to_le32(1);
+	data[1] = cpu_to_le32(0);
+
+	status = usb_ep_queue(rndis->notify, req, GFP_ATOMIC);
+	if (status) {
+		atomic_dec(&rndis->notify_count);
+		DBG(cdev, "notify/0 --> %d\n", status);
+	}
+}
+
+static void rndis_response_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct f_rndis			*rndis = req->context;
+	struct usb_composite_dev	*cdev = rndis->port.func.config->cdev;
+	int				status = req->status;
+
+	/* after TX:
+	 *  - USB_CDC_GET_ENCAPSULATED_RESPONSE (ep0/control)
+	 *  - RNDIS_RESPONSE_AVAILABLE (status/irq)
+	 */
+	switch (status) {
+	case -ECONNRESET:
+	case -ESHUTDOWN:
+		/* connection gone */
+		atomic_set(&rndis->notify_count, 0);
+		break;
+	default:
+		DBG(cdev, "RNDIS %s response error %d, %d/%d\n",
+			ep->name, status,
+			req->actual, req->length);
+		/* FALLTHROUGH */
+	case 0:
+		if (ep != rndis->notify)
+			break;
+
+		/* handle multiple pending RNDIS_RESPONSE_AVAILABLE
+		 * notifications by resending until we're done
+		 */
+		if (atomic_dec_and_test(&rndis->notify_count))
+			break;
+		status = usb_ep_queue(rndis->notify, req, GFP_ATOMIC);
+		if (status) {
+			atomic_dec(&rndis->notify_count);
+			DBG(cdev, "notify/1 --> %d\n", status);
+		}
+		break;
+	}
+}
+
+static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct f_rndis			*rndis = req->context;
+	struct usb_composite_dev	*cdev = rndis->port.func.config->cdev;
+	int				status;
+
+	/* received RNDIS command from USB_CDC_SEND_ENCAPSULATED_COMMAND */
+//	spin_lock(&dev->lock);
+	status = rndis_msg_parser(rndis->config, (u8 *) req->buf);
+	if (status < 0)
+		ERROR(cdev, "RNDIS command error %d, %d/%d\n",
+			status, req->actual, req->length);
+//	spin_unlock(&dev->lock);
+}
+
+static int
+rndis_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
+{
+	struct f_rndis		*rndis = func_to_rndis(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+	struct usb_request	*req = cdev->req;
+	int			value = -EOPNOTSUPP;
+	u16			w_index = le16_to_cpu(ctrl->wIndex);
+	u16			w_value = le16_to_cpu(ctrl->wValue);
+	u16			w_length = le16_to_cpu(ctrl->wLength);
+
+	/* composite driver infrastructure handles everything except
+	 * CDC class messages; interface activation uses set_alt().
+	 */
+	switch ((ctrl->bRequestType << 8) | ctrl->bRequest) {
+
+	/* RNDIS uses the CDC command encapsulation mechanism to implement
+	 * an RPC scheme, with much getting/setting of attributes by OID.
+	 */
+	case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
+			| USB_CDC_SEND_ENCAPSULATED_COMMAND:
+		if (w_value || w_index != rndis->ctrl_id)
+			goto invalid;
+		/* read the request; process it later */
+		value = w_length;
+		req->complete = rndis_command_complete;
+		req->context = rndis;
+		/* later, rndis_response_available() sends a notification */
+		break;
+
+	case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
+			| USB_CDC_GET_ENCAPSULATED_RESPONSE:
+		if (w_value || w_index != rndis->ctrl_id)
+			goto invalid;
+		else {
+			u8 *buf;
+			u32 n;
+
+			/* return the result */
+			buf = rndis_get_next_response(rndis->config, &n);
+			if (buf) {
+				memcpy(req->buf, buf, n);
+				req->complete = rndis_response_complete;
+				req->context = rndis;
+				rndis_free_response(rndis->config, buf);
+				value = n;
+			}
+			/* else stalls ... spec says to avoid that */
+		}
+		break;
+
+	default:
+invalid:
+		VDBG(cdev, "invalid control req%02x.%02x v%04x i%04x l%d\n",
+			ctrl->bRequestType, ctrl->bRequest,
+			w_value, w_index, w_length);
+	}
+
+	/* respond with data transfer or status phase? */
+	if (value >= 0) {
+		DBG(cdev, "rndis req%02x.%02x v%04x i%04x l%d\n",
+			ctrl->bRequestType, ctrl->bRequest,
+			w_value, w_index, w_length);
+		req->zero = (value < w_length);
+		req->length = value;
+		value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+		if (value < 0)
+			ERROR(cdev, "rndis response on err %d\n", value);
+	}
+
+	/* device either stalls (value < 0) or reports success */
+	return value;
+}
+
+
+static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
+{
+	struct f_rndis		*rndis = func_to_rndis(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+
+	/* we know alt == 0 */
+
+	if (intf == rndis->ctrl_id) {
+		if (rndis->notify->driver_data) {
+			VDBG(cdev, "reset rndis control %d\n", intf);
+			usb_ep_disable(rndis->notify);
+		}
+		if (!rndis->notify->desc) {
+			VDBG(cdev, "init rndis ctrl %d\n", intf);
+			if (config_ep_by_speed(cdev->gadget, f, rndis->notify))
+				goto fail;
+		}
+		usb_ep_enable(rndis->notify);
+		rndis->notify->driver_data = rndis;
+
+	} else if (intf == rndis->data_id) {
+		struct net_device	*net;
+
+		if (rndis->port.in_ep->driver_data) {
+			DBG(cdev, "reset rndis\n");
+			gether_disconnect(&rndis->port);
+		}
+
+		if (!rndis->port.in_ep->desc || !rndis->port.out_ep->desc) {
+			DBG(cdev, "init rndis\n");
+			if (config_ep_by_speed(cdev->gadget, f,
+					       rndis->port.in_ep) ||
+			    config_ep_by_speed(cdev->gadget, f,
+					       rndis->port.out_ep)) {
+				rndis->port.in_ep->desc = NULL;
+				rndis->port.out_ep->desc = NULL;
+				goto fail;
+			}
+		}
+
+		/* Avoid ZLPs; they can be troublesome. */
+		rndis->port.is_zlp_ok = false;
+
+		/* RNDIS should be in the "RNDIS uninitialized" state,
+		 * either never activated or after rndis_uninit().
+		 *
+		 * We don't want data to flow here until a nonzero packet
+		 * filter is set, at which point it enters "RNDIS data
+		 * initialized" state ... but we do want the endpoints
+		 * to be activated.  It's a strange little state.
+		 *
+		 * REVISIT the RNDIS gadget code has done this wrong for a
+		 * very long time.  We need another call to the link layer
+		 * code -- gether_updown(...bool) maybe -- to do it right.
+		 */
+		rndis->port.cdc_filter = 0;
+
+		DBG(cdev, "RNDIS RX/TX early activation ... \n");
+		net = gether_connect(&rndis->port);
+		if (IS_ERR(net))
+			return PTR_ERR(net);
+
+		rndis_set_param_dev(rndis->config, net,
+				&rndis->port.cdc_filter);
+	} else
+		goto fail;
+
+	return 0;
+fail:
+	return -EINVAL;
+}
+
+static void rndis_disable(struct usb_function *f)
+{
+	struct f_rndis		*rndis = func_to_rndis(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+
+	if (!rndis->notify->driver_data)
+		return;
+
+	DBG(cdev, "rndis deactivated\n");
+
+	rndis_uninit(rndis->config);
+	gether_disconnect(&rndis->port);
+
+	usb_ep_disable(rndis->notify);
+	rndis->notify->driver_data = NULL;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * This isn't quite the same mechanism as CDC Ethernet, since the
+ * notification scheme passes less data, but the same set of link
+ * states must be tested.  A key difference is that altsettings are
+ * not used to tell whether the link should send packets or not.
+ */
+
+static void rndis_open(struct gether *geth)
+{
+	struct f_rndis		*rndis = func_to_rndis(&geth->func);
+	struct usb_composite_dev *cdev = geth->func.config->cdev;
+
+	DBG(cdev, "%s\n", __func__);
+
+	rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3,
+				bitrate(cdev->gadget) / 100);
+	rndis_signal_connect(rndis->config);
+}
+
+static void rndis_close(struct gether *geth)
+{
+	struct f_rndis		*rndis = func_to_rndis(&geth->func);
+
+	DBG(geth->func.config->cdev, "%s\n", __func__);
+
+	rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3, 0);
+	rndis_signal_disconnect(rndis->config);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* ethernet function driver setup/binding */
+
+static int
+rndis_bind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct usb_composite_dev *cdev = c->cdev;
+	struct f_rndis		*rndis = func_to_rndis(f);
+	int			status;
+	struct usb_ep		*ep;
+
+	/* allocate instance-specific interface IDs */
+	status = usb_interface_id(c, f);
+	if (status < 0)
+		goto fail;
+	rndis->ctrl_id = status;
+	rndis_iad_descriptor.bFirstInterface = status;
+
+	rndis_control_intf.bInterfaceNumber = status;
+	rndis_union_desc.bMasterInterface0 = status;
+
+	status = usb_interface_id(c, f);
+	if (status < 0)
+		goto fail;
+	rndis->data_id = status;
+
+	rndis_data_intf.bInterfaceNumber = status;
+	rndis_union_desc.bSlaveInterface0 = status;
+
+	status = -ENODEV;
+
+	/* allocate instance-specific endpoints */
+	ep = usb_ep_autoconfig(cdev->gadget, &fs_in_desc);
+	if (!ep)
+		goto fail;
+	rndis->port.in_ep = ep;
+	ep->driver_data = cdev;	/* claim */
+
+	ep = usb_ep_autoconfig(cdev->gadget, &fs_out_desc);
+	if (!ep)
+		goto fail;
+	rndis->port.out_ep = ep;
+	ep->driver_data = cdev;	/* claim */
+
+	/* NOTE:  a status/notification endpoint is, strictly speaking,
+	 * optional.  We don't treat it that way though!  It's simpler,
+	 * and some newer profiles don't treat it as optional.
+	 */
+	ep = usb_ep_autoconfig(cdev->gadget, &fs_notify_desc);
+	if (!ep)
+		goto fail;
+	rndis->notify = ep;
+	ep->driver_data = cdev;	/* claim */
+
+	status = -ENOMEM;
+
+	/* allocate notification request and buffer */
+	rndis->notify_req = usb_ep_alloc_request(ep, GFP_KERNEL);
+	if (!rndis->notify_req)
+		goto fail;
+	rndis->notify_req->buf = kmalloc(STATUS_BYTECOUNT, GFP_KERNEL);
+	if (!rndis->notify_req->buf)
+		goto fail;
+	rndis->notify_req->length = STATUS_BYTECOUNT;
+	rndis->notify_req->context = rndis;
+	rndis->notify_req->complete = rndis_response_complete;
+
+	/* copy descriptors, and track endpoint copies */
+	f->descriptors = usb_copy_descriptors(eth_fs_function);
+	if (!f->descriptors)
+		goto fail;
+
+	/* support all relevant hardware speeds... we expect that when
+	 * hardware is dual speed, all bulk-capable endpoints work at
+	 * both speeds
+	 */
+	if (gadget_is_dualspeed(c->cdev->gadget)) {
+		hs_in_desc.bEndpointAddress =
+				fs_in_desc.bEndpointAddress;
+		hs_out_desc.bEndpointAddress =
+				fs_out_desc.bEndpointAddress;
+		hs_notify_desc.bEndpointAddress =
+				fs_notify_desc.bEndpointAddress;
+
+		/* copy descriptors, and track endpoint copies */
+		f->hs_descriptors = usb_copy_descriptors(eth_hs_function);
+		if (!f->hs_descriptors)
+			goto fail;
+	}
+
+	if (gadget_is_superspeed(c->cdev->gadget)) {
+		ss_in_desc.bEndpointAddress =
+				fs_in_desc.bEndpointAddress;
+		ss_out_desc.bEndpointAddress =
+				fs_out_desc.bEndpointAddress;
+		ss_notify_desc.bEndpointAddress =
+				fs_notify_desc.bEndpointAddress;
+
+		/* copy descriptors, and track endpoint copies */
+		f->ss_descriptors = usb_copy_descriptors(eth_ss_function);
+		if (!f->ss_descriptors)
+			goto fail;
+	}
+
+	rndis->port.open = rndis_open;
+	rndis->port.close = rndis_close;
+
+	status = rndis_register(rndis_response_available, rndis);
+	if (status < 0)
+		goto fail;
+	rndis->config = status;
+
+	rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3, 0);
+	rndis_set_host_mac(rndis->config, rndis->ethaddr);
+
+	if (rndis->manufacturer && rndis->vendorID &&
+			rndis_set_param_vendor(rndis->config, rndis->vendorID,
+					       rndis->manufacturer))
+		goto fail;
+
+	/* NOTE:  all that is done without knowing or caring about
+	 * the network link ... which is unavailable to this code
+	 * until we're activated via set_alt().
+	 */
+
+	DBG(cdev, "RNDIS: %s speed IN/%s OUT/%s NOTIFY/%s\n",
+			gadget_is_superspeed(c->cdev->gadget) ? "super" :
+			gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+			rndis->port.in_ep->name, rndis->port.out_ep->name,
+			rndis->notify->name);
+	return 0;
+
+fail:
+	if (gadget_is_superspeed(c->cdev->gadget) && f->ss_descriptors)
+		usb_free_descriptors(f->ss_descriptors);
+	if (gadget_is_dualspeed(c->cdev->gadget) && f->hs_descriptors)
+		usb_free_descriptors(f->hs_descriptors);
+	if (f->descriptors)
+		usb_free_descriptors(f->descriptors);
+
+	if (rndis->notify_req) {
+		kfree(rndis->notify_req->buf);
+		usb_ep_free_request(rndis->notify, rndis->notify_req);
+	}
+
+	/* we might as well release our claims on endpoints */
+	if (rndis->notify)
+		rndis->notify->driver_data = NULL;
+	if (rndis->port.out_ep->desc)
+		rndis->port.out_ep->driver_data = NULL;
+	if (rndis->port.in_ep->desc)
+		rndis->port.in_ep->driver_data = NULL;
+
+	ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
+
+	return status;
+}
+
+static void
+rndis_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct f_rndis		*rndis = func_to_rndis(f);
+
+	rndis_deregister(rndis->config);
+	rndis_exit();
+	rndis_string_defs[0].id = 0;
+
+	if (gadget_is_superspeed(c->cdev->gadget))
+		usb_free_descriptors(f->ss_descriptors);
+	if (gadget_is_dualspeed(c->cdev->gadget))
+		usb_free_descriptors(f->hs_descriptors);
+	usb_free_descriptors(f->descriptors);
+
+	kfree(rndis->notify_req->buf);
+	usb_ep_free_request(rndis->notify, rndis->notify_req);
+
+	kfree(rndis);
+}
+
+/* Some controllers can't support RNDIS ... */
+static inline bool can_support_rndis(struct usb_configuration *c)
+{
+	/* everything else is *presumably* fine */
+	return true;
+}
+
+int
+rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
+				u32 vendorID, const char *manufacturer)
+{
+	struct f_rndis	*rndis;
+	int		status;
+
+	if (!can_support_rndis(c) || !ethaddr)
+		return -EINVAL;
+
+	/* maybe allocate device-global string IDs */
+	if (rndis_string_defs[0].id == 0) {
+
+		/* ... and setup RNDIS itself */
+		status = rndis_init();
+		if (status < 0)
+			return status;
+
+		/* control interface label */
+		status = usb_string_id(c->cdev);
+		if (status < 0)
+			return status;
+		rndis_string_defs[0].id = status;
+		rndis_control_intf.iInterface = status;
+
+		/* data interface label */
+		status = usb_string_id(c->cdev);
+		if (status < 0)
+			return status;
+		rndis_string_defs[1].id = status;
+		rndis_data_intf.iInterface = status;
+
+		/* IAD iFunction label */
+		status = usb_string_id(c->cdev);
+		if (status < 0)
+			return status;
+		rndis_string_defs[2].id = status;
+		rndis_iad_descriptor.iFunction = status;
+	}
+
+	/* allocate and initialize one new instance */
+	status = -ENOMEM;
+	rndis = kzalloc(sizeof *rndis, GFP_KERNEL);
+	if (!rndis)
+		goto fail;
+
+	memcpy(rndis->ethaddr, ethaddr, ETH_ALEN);
+	rndis->vendorID = vendorID;
+	rndis->manufacturer = manufacturer;
+
+	/* RNDIS activates when the host changes this filter */
+	rndis->port.cdc_filter = 0;
+
+	/* RNDIS has special (and complex) framing */
+	rndis->port.header_len = sizeof(struct rndis_packet_msg_type);
+	rndis->port.wrap = rndis_add_header;
+	rndis->port.unwrap = rndis_rm_hdr;
+
+	rndis->port.func.name = "rndis";
+	rndis->port.func.strings = rndis_strings;
+	/* descriptors are per-instance copies */
+	rndis->port.func.bind = rndis_bind;
+	rndis->port.func.unbind = rndis_unbind;
+	rndis->port.func.set_alt = rndis_set_alt;
+	rndis->port.func.setup = rndis_setup;
+	rndis->port.func.disable = rndis_disable;
+
+	status = usb_add_function(c, &rndis->port.func);
+	if (status) {
+		kfree(rndis);
+fail:
+		rndis_exit();
+	}
+	return status;
+}
diff --git a/drivers/staging/ccg/gadget_chips.h b/drivers/staging/ccg/gadget_chips.h
new file mode 100644
index 00000000000..0ccca58e7a8
--- /dev/null
+++ b/drivers/staging/ccg/gadget_chips.h
@@ -0,0 +1,150 @@
+/*
+ * USB device controllers have lots of quirks.  Use these macros in
+ * gadget drivers or other code that needs to deal with them, and which
+ * autoconfigures instead of using early binding to the hardware.
+ *
+ * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
+ * some config file that gets updated as new hardware is supported.
+ * (And avoiding all runtime comparisons in typical one-choice configs!)
+ *
+ * NOTE:  some of these controller drivers may not be available yet.
+ * Some are available on 2.4 kernels; several are available, but not
+ * yet pushed in the 2.6 mainline tree.
+ */
+
+#ifndef __GADGET_CHIPS_H
+#define __GADGET_CHIPS_H
+
+/*
+ * NOTICE: the entries below are alphabetical and should be kept
+ * that way.
+ *
+ * Always be sure to add new entries to the correct position or
+ * accept the bashing later.
+ *
+ * If you have forgotten the alphabetical order let VIM/EMACS
+ * do that for you.
+ */
+#define gadget_is_amd5536udc(g)		(!strcmp("amd5536udc", (g)->name))
+#define gadget_is_at91(g)		(!strcmp("at91_udc", (g)->name))
+#define gadget_is_atmel_usba(g)		(!strcmp("atmel_usba_udc", (g)->name))
+#define gadget_is_bcm63xx(g)		(!strcmp("bcm63xx_udc", (g)->name))
+#define gadget_is_ci13xxx_msm(g)	(!strcmp("ci13xxx_msm", (g)->name))
+#define gadget_is_ci13xxx_pci(g)	(!strcmp("ci13xxx_pci", (g)->name))
+#define gadget_is_dummy(g)		(!strcmp("dummy_udc", (g)->name))
+#define gadget_is_dwc3(g)		(!strcmp("dwc3-gadget", (g)->name))
+#define gadget_is_fsl_qe(g)		(!strcmp("fsl_qe_udc", (g)->name))
+#define gadget_is_fsl_usb2(g)		(!strcmp("fsl-usb2-udc", (g)->name))
+#define gadget_is_goku(g)		(!strcmp("goku_udc", (g)->name))
+#define gadget_is_imx(g)		(!strcmp("imx_udc", (g)->name))
+#define gadget_is_langwell(g)		(!strcmp("langwell_udc", (g)->name))
+#define gadget_is_lpc32xx(g)		(!strcmp("lpc32xx_udc", (g)->name))
+#define gadget_is_m66592(g)		(!strcmp("m66592_udc", (g)->name))
+#define gadget_is_musbhdrc(g)		(!strcmp("musb-hdrc", (g)->name))
+#define gadget_is_net2272(g)		(!strcmp("net2272", (g)->name))
+#define gadget_is_net2280(g)		(!strcmp("net2280", (g)->name))
+#define gadget_is_omap(g)		(!strcmp("omap_udc", (g)->name))
+#define gadget_is_pch(g)		(!strcmp("pch_udc", (g)->name))
+#define gadget_is_pxa(g)		(!strcmp("pxa25x_udc", (g)->name))
+#define gadget_is_pxa27x(g)		(!strcmp("pxa27x_udc", (g)->name))
+#define gadget_is_r8a66597(g)		(!strcmp("r8a66597_udc", (g)->name))
+#define gadget_is_renesas_usbhs(g)	(!strcmp("renesas_usbhs_udc", (g)->name))
+#define gadget_is_s3c2410(g)		(!strcmp("s3c2410_udc", (g)->name))
+#define gadget_is_s3c_hsotg(g)		(!strcmp("s3c-hsotg", (g)->name))
+#define gadget_is_s3c_hsudc(g)		(!strcmp("s3c-hsudc", (g)->name))
+
+/**
+ * usb_gadget_controller_number - support bcdDevice id convention
+ * @gadget: the controller being driven
+ *
+ * Return a 2-digit BCD value associated with the peripheral controller,
+ * suitable for use as part of a bcdDevice value, or a negative error code.
+ *
+ * NOTE:  this convention is purely optional, and has no meaning in terms of
+ * any USB specification.  If you want to use a different convention in your
+ * gadget driver firmware -- maybe a more formal revision ID -- feel free.
+ *
+ * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
+ * to change their behavior accordingly.  For example it might help avoiding
+ * some chip bug.
+ */
+static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
+{
+	if (gadget_is_net2280(gadget))
+		return 0x01;
+	else if (gadget_is_dummy(gadget))
+		return 0x02;
+	else if (gadget_is_pxa(gadget))
+		return 0x03;
+	else if (gadget_is_goku(gadget))
+		return 0x06;
+	else if (gadget_is_omap(gadget))
+		return 0x08;
+	else if (gadget_is_pxa27x(gadget))
+		return 0x11;
+	else if (gadget_is_s3c2410(gadget))
+		return 0x12;
+	else if (gadget_is_at91(gadget))
+		return 0x13;
+	else if (gadget_is_imx(gadget))
+		return 0x14;
+	else if (gadget_is_musbhdrc(gadget))
+		return 0x16;
+	else if (gadget_is_atmel_usba(gadget))
+		return 0x18;
+	else if (gadget_is_fsl_usb2(gadget))
+		return 0x19;
+	else if (gadget_is_amd5536udc(gadget))
+		return 0x20;
+	else if (gadget_is_m66592(gadget))
+		return 0x21;
+	else if (gadget_is_fsl_qe(gadget))
+		return 0x22;
+	else if (gadget_is_ci13xxx_pci(gadget))
+		return 0x23;
+	else if (gadget_is_langwell(gadget))
+		return 0x24;
+	else if (gadget_is_r8a66597(gadget))
+		return 0x25;
+	else if (gadget_is_s3c_hsotg(gadget))
+		return 0x26;
+	else if (gadget_is_pch(gadget))
+		return 0x27;
+	else if (gadget_is_ci13xxx_msm(gadget))
+		return 0x28;
+	else if (gadget_is_renesas_usbhs(gadget))
+		return 0x29;
+	else if (gadget_is_s3c_hsudc(gadget))
+		return 0x30;
+	else if (gadget_is_net2272(gadget))
+		return 0x31;
+	else if (gadget_is_dwc3(gadget))
+		return 0x32;
+	else if (gadget_is_lpc32xx(gadget))
+		return 0x33;
+	else if (gadget_is_bcm63xx(gadget))
+		return 0x34;
+
+	return -ENOENT;
+}
+
+
+/**
+ * gadget_supports_altsettings - return true if altsettings work
+ * @gadget: the gadget in question
+ */
+static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
+{
+	/* PXA 21x/25x/26x has no altsettings at all */
+	if (gadget_is_pxa(gadget))
+		return false;
+
+	/* PXA 27x and 3xx have *broken* altsetting support */
+	if (gadget_is_pxa27x(gadget))
+		return false;
+
+	/* Everything else is *presumably* fine ... */
+	return true;
+}
+
+#endif /* __GADGET_CHIPS_H */
diff --git a/drivers/staging/ccg/ndis.h b/drivers/staging/ccg/ndis.h
new file mode 100644
index 00000000000..a19f72dec0c
--- /dev/null
+++ b/drivers/staging/ccg/ndis.h
@@ -0,0 +1,47 @@
+/*
+ * ndis.h
+ *
+ * ntddndis.h modified by Benedikt Spranger <b.spranger@pengutronix.de>
+ *
+ * Thanks to the cygwin development team,
+ * espacially to Casper S. Hornstrup <chorns@users.sourceforge.net>
+ *
+ * THIS SOFTWARE IS NOT COPYRIGHTED
+ *
+ * This source code is offered for use in the public domain. You may
+ * use, modify or distribute it freely.
+ */
+
+#ifndef _LINUX_NDIS_H
+#define _LINUX_NDIS_H
+
+enum NDIS_DEVICE_POWER_STATE {
+	NdisDeviceStateUnspecified = 0,
+	NdisDeviceStateD0,
+	NdisDeviceStateD1,
+	NdisDeviceStateD2,
+	NdisDeviceStateD3,
+	NdisDeviceStateMaximum
+};
+
+struct NDIS_PM_WAKE_UP_CAPABILITIES {
+	enum NDIS_DEVICE_POWER_STATE  MinMagicPacketWakeUp;
+	enum NDIS_DEVICE_POWER_STATE  MinPatternWakeUp;
+	enum NDIS_DEVICE_POWER_STATE  MinLinkChangeWakeUp;
+};
+
+struct NDIS_PNP_CAPABILITIES {
+	__le32					Flags;
+	struct NDIS_PM_WAKE_UP_CAPABILITIES	WakeUpCapabilities;
+};
+
+struct NDIS_PM_PACKET_PATTERN {
+	__le32	Priority;
+	__le32	Reserved;
+	__le32	MaskSize;
+	__le32	PatternOffset;
+	__le32	PatternSize;
+	__le32	PatternFlags;
+};
+
+#endif /* _LINUX_NDIS_H */
diff --git a/drivers/staging/ccg/rndis.c b/drivers/staging/ccg/rndis.c
new file mode 100644
index 00000000000..e4192b887de
--- /dev/null
+++ b/drivers/staging/ccg/rndis.c
@@ -0,0 +1,1175 @@
+/*
+ * RNDIS MSG parser
+ *
+ * Authors:	Benedikt Spranger, Pengutronix
+ *		Robert Schwebel, Pengutronix
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              version 2, as published by the Free Software Foundation.
+ *
+ *		This software was originally developed in conformance with
+ *		Microsoft's Remote NDIS Specification License Agreement.
+ *
+ * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
+ *		Fixed message length bug in init_response
+ *
+ * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
+ *		Fixed rndis_rm_hdr length bug.
+ *
+ * Copyright (C) 2004 by David Brownell
+ *		updates to merge with Linux 2.6, better match RNDIS spec
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/seq_file.h>
+#include <linux/netdevice.h>
+
+#include <asm/io.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+
+
+#undef	VERBOSE_DEBUG
+
+#include "rndis.h"
+
+
+/* The driver for your USB chip needs to support ep0 OUT to work with
+ * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
+ *
+ * Windows hosts need an INF file like Documentation/usb/linux.inf
+ * and will be happier if you provide the host_addr module parameter.
+ */
+
+#if 0
+static int rndis_debug = 0;
+module_param (rndis_debug, int, 0);
+MODULE_PARM_DESC (rndis_debug, "enable debugging");
+#else
+#define rndis_debug		0
+#endif
+
+#define RNDIS_MAX_CONFIGS	1
+
+
+static rndis_params rndis_per_dev_params[RNDIS_MAX_CONFIGS];
+
+/* Driver Version */
+static const __le32 rndis_driver_version = cpu_to_le32(1);
+
+/* Function Prototypes */
+static rndis_resp_t *rndis_add_response(int configNr, u32 length);
+
+
+/* supported OIDs */
+static const u32 oid_supported_list[] =
+{
+	/* the general stuff */
+	RNDIS_OID_GEN_SUPPORTED_LIST,
+	RNDIS_OID_GEN_HARDWARE_STATUS,
+	RNDIS_OID_GEN_MEDIA_SUPPORTED,
+	RNDIS_OID_GEN_MEDIA_IN_USE,
+	RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE,
+	RNDIS_OID_GEN_LINK_SPEED,
+	RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE,
+	RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE,
+	RNDIS_OID_GEN_VENDOR_ID,
+	RNDIS_OID_GEN_VENDOR_DESCRIPTION,
+	RNDIS_OID_GEN_VENDOR_DRIVER_VERSION,
+	RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
+	RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE,
+	RNDIS_OID_GEN_MEDIA_CONNECT_STATUS,
+	RNDIS_OID_GEN_PHYSICAL_MEDIUM,
+
+	/* the statistical stuff */
+	RNDIS_OID_GEN_XMIT_OK,
+	RNDIS_OID_GEN_RCV_OK,
+	RNDIS_OID_GEN_XMIT_ERROR,
+	RNDIS_OID_GEN_RCV_ERROR,
+	RNDIS_OID_GEN_RCV_NO_BUFFER,
+#ifdef	RNDIS_OPTIONAL_STATS
+	RNDIS_OID_GEN_DIRECTED_BYTES_XMIT,
+	RNDIS_OID_GEN_DIRECTED_FRAMES_XMIT,
+	RNDIS_OID_GEN_MULTICAST_BYTES_XMIT,
+	RNDIS_OID_GEN_MULTICAST_FRAMES_XMIT,
+	RNDIS_OID_GEN_BROADCAST_BYTES_XMIT,
+	RNDIS_OID_GEN_BROADCAST_FRAMES_XMIT,
+	RNDIS_OID_GEN_DIRECTED_BYTES_RCV,
+	RNDIS_OID_GEN_DIRECTED_FRAMES_RCV,
+	RNDIS_OID_GEN_MULTICAST_BYTES_RCV,
+	RNDIS_OID_GEN_MULTICAST_FRAMES_RCV,
+	RNDIS_OID_GEN_BROADCAST_BYTES_RCV,
+	RNDIS_OID_GEN_BROADCAST_FRAMES_RCV,
+	RNDIS_OID_GEN_RCV_CRC_ERROR,
+	RNDIS_OID_GEN_TRANSMIT_QUEUE_LENGTH,
+#endif	/* RNDIS_OPTIONAL_STATS */
+
+	/* mandatory 802.3 */
+	/* the general stuff */
+	RNDIS_OID_802_3_PERMANENT_ADDRESS,
+	RNDIS_OID_802_3_CURRENT_ADDRESS,
+	RNDIS_OID_802_3_MULTICAST_LIST,
+	RNDIS_OID_802_3_MAC_OPTIONS,
+	RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
+
+	/* the statistical stuff */
+	RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT,
+	RNDIS_OID_802_3_XMIT_ONE_COLLISION,
+	RNDIS_OID_802_3_XMIT_MORE_COLLISIONS,
+#ifdef	RNDIS_OPTIONAL_STATS
+	RNDIS_OID_802_3_XMIT_DEFERRED,
+	RNDIS_OID_802_3_XMIT_MAX_COLLISIONS,
+	RNDIS_OID_802_3_RCV_OVERRUN,
+	RNDIS_OID_802_3_XMIT_UNDERRUN,
+	RNDIS_OID_802_3_XMIT_HEARTBEAT_FAILURE,
+	RNDIS_OID_802_3_XMIT_TIMES_CRS_LOST,
+	RNDIS_OID_802_3_XMIT_LATE_COLLISIONS,
+#endif	/* RNDIS_OPTIONAL_STATS */
+
+#ifdef	RNDIS_PM
+	/* PM and wakeup are "mandatory" for USB, but the RNDIS specs
+	 * don't say what they mean ... and the NDIS specs are often
+	 * confusing and/or ambiguous in this context.  (That is, more
+	 * so than their specs for the other OIDs.)
+	 *
+	 * FIXME someone who knows what these should do, please
+	 * implement them!
+	 */
+
+	/* power management */
+	OID_PNP_CAPABILITIES,
+	OID_PNP_QUERY_POWER,
+	OID_PNP_SET_POWER,
+
+#ifdef	RNDIS_WAKEUP
+	/* wake up host */
+	OID_PNP_ENABLE_WAKE_UP,
+	OID_PNP_ADD_WAKE_UP_PATTERN,
+	OID_PNP_REMOVE_WAKE_UP_PATTERN,
+#endif	/* RNDIS_WAKEUP */
+#endif	/* RNDIS_PM */
+};
+
+
+/* NDIS Functions */
+static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
+			       unsigned buf_len, rndis_resp_t *r)
+{
+	int retval = -ENOTSUPP;
+	u32 length = 4;	/* usually */
+	__le32 *outbuf;
+	int i, count;
+	rndis_query_cmplt_type *resp;
+	struct net_device *net;
+	struct rtnl_link_stats64 temp;
+	const struct rtnl_link_stats64 *stats;
+
+	if (!r) return -ENOMEM;
+	resp = (rndis_query_cmplt_type *)r->buf;
+
+	if (!resp) return -ENOMEM;
+
+	if (buf_len && rndis_debug > 1) {
+		pr_debug("query OID %08x value, len %d:\n", OID, buf_len);
+		for (i = 0; i < buf_len; i += 16) {
+			pr_debug("%03d: %08x %08x %08x %08x\n", i,
+				get_unaligned_le32(&buf[i]),
+				get_unaligned_le32(&buf[i + 4]),
+				get_unaligned_le32(&buf[i + 8]),
+				get_unaligned_le32(&buf[i + 12]));
+		}
+	}
+
+	/* response goes here, right after the header */
+	outbuf = (__le32 *)&resp[1];
+	resp->InformationBufferOffset = cpu_to_le32(16);
+
+	net = rndis_per_dev_params[configNr].dev;
+	stats = dev_get_stats(net, &temp);
+
+	switch (OID) {
+
+	/* general oids (table 4-1) */
+
+	/* mandatory */
+	case RNDIS_OID_GEN_SUPPORTED_LIST:
+		pr_debug("%s: RNDIS_OID_GEN_SUPPORTED_LIST\n", __func__);
+		length = sizeof(oid_supported_list);
+		count  = length / sizeof(u32);
+		for (i = 0; i < count; i++)
+			outbuf[i] = cpu_to_le32(oid_supported_list[i]);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_HARDWARE_STATUS:
+		pr_debug("%s: RNDIS_OID_GEN_HARDWARE_STATUS\n", __func__);
+		/* Bogus question!
+		 * Hardware must be ready to receive high level protocols.
+		 * BTW:
+		 * reddite ergo quae sunt Caesaris Caesari
+		 * et quae sunt Dei Deo!
+		 */
+		*outbuf = cpu_to_le32(0);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_MEDIA_SUPPORTED:
+		pr_debug("%s: RNDIS_OID_GEN_MEDIA_SUPPORTED\n", __func__);
+		*outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_MEDIA_IN_USE:
+		pr_debug("%s: RNDIS_OID_GEN_MEDIA_IN_USE\n", __func__);
+		/* one medium, one transport... (maybe you do it better) */
+		*outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE:
+		pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__);
+		if (rndis_per_dev_params[configNr].dev) {
+			*outbuf = cpu_to_le32(
+				rndis_per_dev_params[configNr].dev->mtu);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_LINK_SPEED:
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_OID_GEN_LINK_SPEED\n", __func__);
+		if (rndis_per_dev_params[configNr].media_state
+				== RNDIS_MEDIA_STATE_DISCONNECTED)
+			*outbuf = cpu_to_le32(0);
+		else
+			*outbuf = cpu_to_le32(
+				rndis_per_dev_params[configNr].speed);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE:
+		pr_debug("%s: RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__);
+		if (rndis_per_dev_params[configNr].dev) {
+			*outbuf = cpu_to_le32(
+				rndis_per_dev_params[configNr].dev->mtu);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE:
+		pr_debug("%s: RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__);
+		if (rndis_per_dev_params[configNr].dev) {
+			*outbuf = cpu_to_le32(
+				rndis_per_dev_params[configNr].dev->mtu);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_VENDOR_ID:
+		pr_debug("%s: RNDIS_OID_GEN_VENDOR_ID\n", __func__);
+		*outbuf = cpu_to_le32(
+			rndis_per_dev_params[configNr].vendorID);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_VENDOR_DESCRIPTION:
+		pr_debug("%s: RNDIS_OID_GEN_VENDOR_DESCRIPTION\n", __func__);
+		if (rndis_per_dev_params[configNr].vendorDescr) {
+			length = strlen(rndis_per_dev_params[configNr].
+					vendorDescr);
+			memcpy(outbuf,
+				rndis_per_dev_params[configNr].vendorDescr,
+				length);
+		} else {
+			outbuf[0] = 0;
+		}
+		retval = 0;
+		break;
+
+	case RNDIS_OID_GEN_VENDOR_DRIVER_VERSION:
+		pr_debug("%s: RNDIS_OID_GEN_VENDOR_DRIVER_VERSION\n", __func__);
+		/* Created as LE */
+		*outbuf = rndis_driver_version;
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_CURRENT_PACKET_FILTER:
+		pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER\n", __func__);
+		*outbuf = cpu_to_le32(*rndis_per_dev_params[configNr].filter);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE:
+		pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__);
+		*outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_MEDIA_CONNECT_STATUS:
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_OID_GEN_MEDIA_CONNECT_STATUS\n", __func__);
+		*outbuf = cpu_to_le32(rndis_per_dev_params[configNr]
+						.media_state);
+		retval = 0;
+		break;
+
+	case RNDIS_OID_GEN_PHYSICAL_MEDIUM:
+		pr_debug("%s: RNDIS_OID_GEN_PHYSICAL_MEDIUM\n", __func__);
+		*outbuf = cpu_to_le32(0);
+		retval = 0;
+		break;
+
+	/* The RNDIS specification is incomplete/wrong.   Some versions
+	 * of MS-Windows expect OIDs that aren't specified there.  Other
+	 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
+	 */
+	case RNDIS_OID_GEN_MAC_OPTIONS:		/* from WinME */
+		pr_debug("%s: RNDIS_OID_GEN_MAC_OPTIONS\n", __func__);
+		*outbuf = cpu_to_le32(
+			  RNDIS_MAC_OPTION_RECEIVE_SERIALIZED
+			| RNDIS_MAC_OPTION_FULL_DUPLEX);
+		retval = 0;
+		break;
+
+	/* statistics OIDs (table 4-2) */
+
+	/* mandatory */
+	case RNDIS_OID_GEN_XMIT_OK:
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_OID_GEN_XMIT_OK\n", __func__);
+		if (stats) {
+			*outbuf = cpu_to_le32(stats->tx_packets
+				- stats->tx_errors - stats->tx_dropped);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_RCV_OK:
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_OID_GEN_RCV_OK\n", __func__);
+		if (stats) {
+			*outbuf = cpu_to_le32(stats->rx_packets
+				- stats->rx_errors - stats->rx_dropped);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_XMIT_ERROR:
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_OID_GEN_XMIT_ERROR\n", __func__);
+		if (stats) {
+			*outbuf = cpu_to_le32(stats->tx_errors);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_RCV_ERROR:
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_OID_GEN_RCV_ERROR\n", __func__);
+		if (stats) {
+			*outbuf = cpu_to_le32(stats->rx_errors);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_GEN_RCV_NO_BUFFER:
+		pr_debug("%s: RNDIS_OID_GEN_RCV_NO_BUFFER\n", __func__);
+		if (stats) {
+			*outbuf = cpu_to_le32(stats->rx_dropped);
+			retval = 0;
+		}
+		break;
+
+	/* ieee802.3 OIDs (table 4-3) */
+
+	/* mandatory */
+	case RNDIS_OID_802_3_PERMANENT_ADDRESS:
+		pr_debug("%s: RNDIS_OID_802_3_PERMANENT_ADDRESS\n", __func__);
+		if (rndis_per_dev_params[configNr].dev) {
+			length = ETH_ALEN;
+			memcpy(outbuf,
+				rndis_per_dev_params[configNr].host_mac,
+				length);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_802_3_CURRENT_ADDRESS:
+		pr_debug("%s: RNDIS_OID_802_3_CURRENT_ADDRESS\n", __func__);
+		if (rndis_per_dev_params[configNr].dev) {
+			length = ETH_ALEN;
+			memcpy(outbuf,
+				rndis_per_dev_params [configNr].host_mac,
+				length);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_802_3_MULTICAST_LIST:
+		pr_debug("%s: RNDIS_OID_802_3_MULTICAST_LIST\n", __func__);
+		/* Multicast base address only */
+		*outbuf = cpu_to_le32(0xE0000000);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_802_3_MAXIMUM_LIST_SIZE:
+		pr_debug("%s: RNDIS_OID_802_3_MAXIMUM_LIST_SIZE\n", __func__);
+		/* Multicast base address only */
+		*outbuf = cpu_to_le32(1);
+		retval = 0;
+		break;
+
+	case RNDIS_OID_802_3_MAC_OPTIONS:
+		pr_debug("%s: RNDIS_OID_802_3_MAC_OPTIONS\n", __func__);
+		*outbuf = cpu_to_le32(0);
+		retval = 0;
+		break;
+
+	/* ieee802.3 statistics OIDs (table 4-4) */
+
+	/* mandatory */
+	case RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT:
+		pr_debug("%s: RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__);
+		if (stats) {
+			*outbuf = cpu_to_le32(stats->rx_frame_errors);
+			retval = 0;
+		}
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_802_3_XMIT_ONE_COLLISION:
+		pr_debug("%s: RNDIS_OID_802_3_XMIT_ONE_COLLISION\n", __func__);
+		*outbuf = cpu_to_le32(0);
+		retval = 0;
+		break;
+
+	/* mandatory */
+	case RNDIS_OID_802_3_XMIT_MORE_COLLISIONS:
+		pr_debug("%s: RNDIS_OID_802_3_XMIT_MORE_COLLISIONS\n", __func__);
+		*outbuf = cpu_to_le32(0);
+		retval = 0;
+		break;
+
+	default:
+		pr_warning("%s: query unknown OID 0x%08X\n",
+			 __func__, OID);
+	}
+	if (retval < 0)
+		length = 0;
+
+	resp->InformationBufferLength = cpu_to_le32(length);
+	r->length = length + sizeof(*resp);
+	resp->MessageLength = cpu_to_le32(r->length);
+	return retval;
+}
+
+static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len,
+			     rndis_resp_t *r)
+{
+	rndis_set_cmplt_type *resp;
+	int i, retval = -ENOTSUPP;
+	struct rndis_params *params;
+
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_set_cmplt_type *)r->buf;
+	if (!resp)
+		return -ENOMEM;
+
+	if (buf_len && rndis_debug > 1) {
+		pr_debug("set OID %08x value, len %d:\n", OID, buf_len);
+		for (i = 0; i < buf_len; i += 16) {
+			pr_debug("%03d: %08x %08x %08x %08x\n", i,
+				get_unaligned_le32(&buf[i]),
+				get_unaligned_le32(&buf[i + 4]),
+				get_unaligned_le32(&buf[i + 8]),
+				get_unaligned_le32(&buf[i + 12]));
+		}
+	}
+
+	params = &rndis_per_dev_params[configNr];
+	switch (OID) {
+	case RNDIS_OID_GEN_CURRENT_PACKET_FILTER:
+
+		/* these NDIS_PACKET_TYPE_* bitflags are shared with
+		 * cdc_filter; it's not RNDIS-specific
+		 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
+		 *	PROMISCUOUS, DIRECTED,
+		 *	MULTICAST, ALL_MULTICAST, BROADCAST
+		 */
+		*params->filter = (u16)get_unaligned_le32(buf);
+		pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER %08x\n",
+			__func__, *params->filter);
+
+		/* this call has a significant side effect:  it's
+		 * what makes the packet flow start and stop, like
+		 * activating the CDC Ethernet altsetting.
+		 */
+		retval = 0;
+		if (*params->filter) {
+			params->state = RNDIS_DATA_INITIALIZED;
+			netif_carrier_on(params->dev);
+			if (netif_running(params->dev))
+				netif_wake_queue(params->dev);
+		} else {
+			params->state = RNDIS_INITIALIZED;
+			netif_carrier_off(params->dev);
+			netif_stop_queue(params->dev);
+		}
+		break;
+
+	case RNDIS_OID_802_3_MULTICAST_LIST:
+		/* I think we can ignore this */
+		pr_debug("%s: RNDIS_OID_802_3_MULTICAST_LIST\n", __func__);
+		retval = 0;
+		break;
+
+	default:
+		pr_warning("%s: set unknown OID 0x%08X, size %d\n",
+			 __func__, OID, buf_len);
+	}
+
+	return retval;
+}
+
+/*
+ * Response Functions
+ */
+
+static int rndis_init_response(int configNr, rndis_init_msg_type *buf)
+{
+	rndis_init_cmplt_type *resp;
+	rndis_resp_t *r;
+	struct rndis_params *params = rndis_per_dev_params + configNr;
+
+	if (!params->dev)
+		return -ENOTSUPP;
+
+	r = rndis_add_response(configNr, sizeof(rndis_init_cmplt_type));
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_init_cmplt_type *)r->buf;
+
+	resp->MessageType = cpu_to_le32(RNDIS_MSG_INIT_C);
+	resp->MessageLength = cpu_to_le32(52);
+	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
+	resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
+	resp->MajorVersion = cpu_to_le32(RNDIS_MAJOR_VERSION);
+	resp->MinorVersion = cpu_to_le32(RNDIS_MINOR_VERSION);
+	resp->DeviceFlags = cpu_to_le32(RNDIS_DF_CONNECTIONLESS);
+	resp->Medium = cpu_to_le32(RNDIS_MEDIUM_802_3);
+	resp->MaxPacketsPerTransfer = cpu_to_le32(1);
+	resp->MaxTransferSize = cpu_to_le32(
+		  params->dev->mtu
+		+ sizeof(struct ethhdr)
+		+ sizeof(struct rndis_packet_msg_type)
+		+ 22);
+	resp->PacketAlignmentFactor = cpu_to_le32(0);
+	resp->AFListOffset = cpu_to_le32(0);
+	resp->AFListSize = cpu_to_le32(0);
+
+	params->resp_avail(params->v);
+	return 0;
+}
+
+static int rndis_query_response(int configNr, rndis_query_msg_type *buf)
+{
+	rndis_query_cmplt_type *resp;
+	rndis_resp_t *r;
+	struct rndis_params *params = rndis_per_dev_params + configNr;
+
+	/* pr_debug("%s: OID = %08X\n", __func__, cpu_to_le32(buf->OID)); */
+	if (!params->dev)
+		return -ENOTSUPP;
+
+	/*
+	 * we need more memory:
+	 * gen_ndis_query_resp expects enough space for
+	 * rndis_query_cmplt_type followed by data.
+	 * oid_supported_list is the largest data reply
+	 */
+	r = rndis_add_response(configNr,
+		sizeof(oid_supported_list) + sizeof(rndis_query_cmplt_type));
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_query_cmplt_type *)r->buf;
+
+	resp->MessageType = cpu_to_le32(RNDIS_MSG_QUERY_C);
+	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
+
+	if (gen_ndis_query_resp(configNr, le32_to_cpu(buf->OID),
+			le32_to_cpu(buf->InformationBufferOffset)
+					+ 8 + (u8 *)buf,
+			le32_to_cpu(buf->InformationBufferLength),
+			r)) {
+		/* OID not supported */
+		resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
+		resp->MessageLength = cpu_to_le32(sizeof *resp);
+		resp->InformationBufferLength = cpu_to_le32(0);
+		resp->InformationBufferOffset = cpu_to_le32(0);
+	} else
+		resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
+
+	params->resp_avail(params->v);
+	return 0;
+}
+
+static int rndis_set_response(int configNr, rndis_set_msg_type *buf)
+{
+	u32 BufLength, BufOffset;
+	rndis_set_cmplt_type *resp;
+	rndis_resp_t *r;
+	struct rndis_params *params = rndis_per_dev_params + configNr;
+
+	r = rndis_add_response(configNr, sizeof(rndis_set_cmplt_type));
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_set_cmplt_type *)r->buf;
+
+	BufLength = le32_to_cpu(buf->InformationBufferLength);
+	BufOffset = le32_to_cpu(buf->InformationBufferOffset);
+
+#ifdef	VERBOSE_DEBUG
+	pr_debug("%s: Length: %d\n", __func__, BufLength);
+	pr_debug("%s: Offset: %d\n", __func__, BufOffset);
+	pr_debug("%s: InfoBuffer: ", __func__);
+
+	for (i = 0; i < BufLength; i++) {
+		pr_debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
+	}
+
+	pr_debug("\n");
+#endif
+
+	resp->MessageType = cpu_to_le32(RNDIS_MSG_SET_C);
+	resp->MessageLength = cpu_to_le32(16);
+	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
+	if (gen_ndis_set_resp(configNr, le32_to_cpu(buf->OID),
+			((u8 *)buf) + 8 + BufOffset, BufLength, r))
+		resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
+	else
+		resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
+
+	params->resp_avail(params->v);
+	return 0;
+}
+
+static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf)
+{
+	rndis_reset_cmplt_type *resp;
+	rndis_resp_t *r;
+	struct rndis_params *params = rndis_per_dev_params + configNr;
+
+	r = rndis_add_response(configNr, sizeof(rndis_reset_cmplt_type));
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_reset_cmplt_type *)r->buf;
+
+	resp->MessageType = cpu_to_le32(RNDIS_MSG_RESET_C);
+	resp->MessageLength = cpu_to_le32(16);
+	resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
+	/* resent information */
+	resp->AddressingReset = cpu_to_le32(1);
+
+	params->resp_avail(params->v);
+	return 0;
+}
+
+static int rndis_keepalive_response(int configNr,
+				    rndis_keepalive_msg_type *buf)
+{
+	rndis_keepalive_cmplt_type *resp;
+	rndis_resp_t *r;
+	struct rndis_params *params = rndis_per_dev_params + configNr;
+
+	/* host "should" check only in RNDIS_DATA_INITIALIZED state */
+
+	r = rndis_add_response(configNr, sizeof(rndis_keepalive_cmplt_type));
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_keepalive_cmplt_type *)r->buf;
+
+	resp->MessageType = cpu_to_le32(RNDIS_MSG_KEEPALIVE_C);
+	resp->MessageLength = cpu_to_le32(16);
+	resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
+	resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
+
+	params->resp_avail(params->v);
+	return 0;
+}
+
+
+/*
+ * Device to Host Comunication
+ */
+static int rndis_indicate_status_msg(int configNr, u32 status)
+{
+	rndis_indicate_status_msg_type *resp;
+	rndis_resp_t *r;
+	struct rndis_params *params = rndis_per_dev_params + configNr;
+
+	if (params->state == RNDIS_UNINITIALIZED)
+		return -ENOTSUPP;
+
+	r = rndis_add_response(configNr,
+				sizeof(rndis_indicate_status_msg_type));
+	if (!r)
+		return -ENOMEM;
+	resp = (rndis_indicate_status_msg_type *)r->buf;
+
+	resp->MessageType = cpu_to_le32(RNDIS_MSG_INDICATE);
+	resp->MessageLength = cpu_to_le32(20);
+	resp->Status = cpu_to_le32(status);
+	resp->StatusBufferLength = cpu_to_le32(0);
+	resp->StatusBufferOffset = cpu_to_le32(0);
+
+	params->resp_avail(params->v);
+	return 0;
+}
+
+int rndis_signal_connect(int configNr)
+{
+	rndis_per_dev_params[configNr].media_state
+			= RNDIS_MEDIA_STATE_CONNECTED;
+	return rndis_indicate_status_msg(configNr,
+					  RNDIS_STATUS_MEDIA_CONNECT);
+}
+
+int rndis_signal_disconnect(int configNr)
+{
+	rndis_per_dev_params[configNr].media_state
+			= RNDIS_MEDIA_STATE_DISCONNECTED;
+	return rndis_indicate_status_msg(configNr,
+					  RNDIS_STATUS_MEDIA_DISCONNECT);
+}
+
+void rndis_uninit(int configNr)
+{
+	u8 *buf;
+	u32 length;
+
+	if (configNr >= RNDIS_MAX_CONFIGS)
+		return;
+	rndis_per_dev_params[configNr].state = RNDIS_UNINITIALIZED;
+
+	/* drain the response queue */
+	while ((buf = rndis_get_next_response(configNr, &length)))
+		rndis_free_response(configNr, buf);
+}
+
+void rndis_set_host_mac(int configNr, const u8 *addr)
+{
+	rndis_per_dev_params[configNr].host_mac = addr;
+}
+
+/*
+ * Message Parser
+ */
+int rndis_msg_parser(u8 configNr, u8 *buf)
+{
+	u32 MsgType, MsgLength;
+	__le32 *tmp;
+	struct rndis_params *params;
+
+	if (!buf)
+		return -ENOMEM;
+
+	tmp = (__le32 *)buf;
+	MsgType   = get_unaligned_le32(tmp++);
+	MsgLength = get_unaligned_le32(tmp++);
+
+	if (configNr >= RNDIS_MAX_CONFIGS)
+		return -ENOTSUPP;
+	params = &rndis_per_dev_params[configNr];
+
+	/* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
+	 * rx/tx statistics and link status, in addition to KEEPALIVE traffic
+	 * and normal HC level polling to see if there's any IN traffic.
+	 */
+
+	/* For USB: responses may take up to 10 seconds */
+	switch (MsgType) {
+	case RNDIS_MSG_INIT:
+		pr_debug("%s: RNDIS_MSG_INIT\n",
+			__func__);
+		params->state = RNDIS_INITIALIZED;
+		return rndis_init_response(configNr,
+					(rndis_init_msg_type *)buf);
+
+	case RNDIS_MSG_HALT:
+		pr_debug("%s: RNDIS_MSG_HALT\n",
+			__func__);
+		params->state = RNDIS_UNINITIALIZED;
+		if (params->dev) {
+			netif_carrier_off(params->dev);
+			netif_stop_queue(params->dev);
+		}
+		return 0;
+
+	case RNDIS_MSG_QUERY:
+		return rndis_query_response(configNr,
+					(rndis_query_msg_type *)buf);
+
+	case RNDIS_MSG_SET:
+		return rndis_set_response(configNr,
+					(rndis_set_msg_type *)buf);
+
+	case RNDIS_MSG_RESET:
+		pr_debug("%s: RNDIS_MSG_RESET\n",
+			__func__);
+		return rndis_reset_response(configNr,
+					(rndis_reset_msg_type *)buf);
+
+	case RNDIS_MSG_KEEPALIVE:
+		/* For USB: host does this every 5 seconds */
+		if (rndis_debug > 1)
+			pr_debug("%s: RNDIS_MSG_KEEPALIVE\n",
+				__func__);
+		return rndis_keepalive_response(configNr,
+						 (rndis_keepalive_msg_type *)
+						 buf);
+
+	default:
+		/* At least Windows XP emits some undefined RNDIS messages.
+		 * In one case those messages seemed to relate to the host
+		 * suspending itself.
+		 */
+		pr_warning("%s: unknown RNDIS message 0x%08X len %d\n",
+			__func__, MsgType, MsgLength);
+		print_hex_dump_bytes(__func__, DUMP_PREFIX_OFFSET,
+				     buf, MsgLength);
+		break;
+	}
+
+	return -ENOTSUPP;
+}
+
+int rndis_register(void (*resp_avail)(void *v), void *v)
+{
+	u8 i;
+
+	if (!resp_avail)
+		return -EINVAL;
+
+	for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
+		if (!rndis_per_dev_params[i].used) {
+			rndis_per_dev_params[i].used = 1;
+			rndis_per_dev_params[i].resp_avail = resp_avail;
+			rndis_per_dev_params[i].v = v;
+			pr_debug("%s: configNr = %d\n", __func__, i);
+			return i;
+		}
+	}
+	pr_debug("failed\n");
+
+	return -ENODEV;
+}
+
+void rndis_deregister(int configNr)
+{
+	pr_debug("%s:\n", __func__);
+
+	if (configNr >= RNDIS_MAX_CONFIGS) return;
+	rndis_per_dev_params[configNr].used = 0;
+}
+
+int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter)
+{
+	pr_debug("%s:\n", __func__);
+	if (!dev)
+		return -EINVAL;
+	if (configNr >= RNDIS_MAX_CONFIGS) return -1;
+
+	rndis_per_dev_params[configNr].dev = dev;
+	rndis_per_dev_params[configNr].filter = cdc_filter;
+
+	return 0;
+}
+
+int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr)
+{
+	pr_debug("%s:\n", __func__);
+	if (!vendorDescr) return -1;
+	if (configNr >= RNDIS_MAX_CONFIGS) return -1;
+
+	rndis_per_dev_params[configNr].vendorID = vendorID;
+	rndis_per_dev_params[configNr].vendorDescr = vendorDescr;
+
+	return 0;
+}
+
+int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed)
+{
+	pr_debug("%s: %u %u\n", __func__, medium, speed);
+	if (configNr >= RNDIS_MAX_CONFIGS) return -1;
+
+	rndis_per_dev_params[configNr].medium = medium;
+	rndis_per_dev_params[configNr].speed = speed;
+
+	return 0;
+}
+
+void rndis_add_hdr(struct sk_buff *skb)
+{
+	struct rndis_packet_msg_type *header;
+
+	if (!skb)
+		return;
+	header = (void *)skb_push(skb, sizeof(*header));
+	memset(header, 0, sizeof *header);
+	header->MessageType = cpu_to_le32(RNDIS_MSG_PACKET);
+	header->MessageLength = cpu_to_le32(skb->len);
+	header->DataOffset = cpu_to_le32(36);
+	header->DataLength = cpu_to_le32(skb->len - sizeof(*header));
+}
+
+void rndis_free_response(int configNr, u8 *buf)
+{
+	rndis_resp_t *r;
+	struct list_head *act, *tmp;
+
+	list_for_each_safe(act, tmp,
+			&(rndis_per_dev_params[configNr].resp_queue))
+	{
+		r = list_entry(act, rndis_resp_t, list);
+		if (r && r->buf == buf) {
+			list_del(&r->list);
+			kfree(r);
+		}
+	}
+}
+
+u8 *rndis_get_next_response(int configNr, u32 *length)
+{
+	rndis_resp_t *r;
+	struct list_head *act, *tmp;
+
+	if (!length) return NULL;
+
+	list_for_each_safe(act, tmp,
+			&(rndis_per_dev_params[configNr].resp_queue))
+	{
+		r = list_entry(act, rndis_resp_t, list);
+		if (!r->send) {
+			r->send = 1;
+			*length = r->length;
+			return r->buf;
+		}
+	}
+
+	return NULL;
+}
+
+static rndis_resp_t *rndis_add_response(int configNr, u32 length)
+{
+	rndis_resp_t *r;
+
+	/* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
+	r = kmalloc(sizeof(rndis_resp_t) + length, GFP_ATOMIC);
+	if (!r) return NULL;
+
+	r->buf = (u8 *)(r + 1);
+	r->length = length;
+	r->send = 0;
+
+	list_add_tail(&r->list,
+		&(rndis_per_dev_params[configNr].resp_queue));
+	return r;
+}
+
+int rndis_rm_hdr(struct gether *port,
+			struct sk_buff *skb,
+			struct sk_buff_head *list)
+{
+	/* tmp points to a struct rndis_packet_msg_type */
+	__le32 *tmp = (void *)skb->data;
+
+	/* MessageType, MessageLength */
+	if (cpu_to_le32(RNDIS_MSG_PACKET)
+			!= get_unaligned(tmp++)) {
+		dev_kfree_skb_any(skb);
+		return -EINVAL;
+	}
+	tmp++;
+
+	/* DataOffset, DataLength */
+	if (!skb_pull(skb, get_unaligned_le32(tmp++) + 8)) {
+		dev_kfree_skb_any(skb);
+		return -EOVERFLOW;
+	}
+	skb_trim(skb, get_unaligned_le32(tmp++));
+
+	skb_queue_tail(list, skb);
+	return 0;
+}
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static int rndis_proc_show(struct seq_file *m, void *v)
+{
+	rndis_params *param = m->private;
+
+	seq_printf(m,
+			 "Config Nr. %d\n"
+			 "used      : %s\n"
+			 "state     : %s\n"
+			 "medium    : 0x%08X\n"
+			 "speed     : %d\n"
+			 "cable     : %s\n"
+			 "vendor ID : 0x%08X\n"
+			 "vendor    : %s\n",
+			 param->confignr, (param->used) ? "y" : "n",
+			 ({ char *s = "?";
+			 switch (param->state) {
+			 case RNDIS_UNINITIALIZED:
+				s = "RNDIS_UNINITIALIZED"; break;
+			 case RNDIS_INITIALIZED:
+				s = "RNDIS_INITIALIZED"; break;
+			 case RNDIS_DATA_INITIALIZED:
+				s = "RNDIS_DATA_INITIALIZED"; break;
+			}; s; }),
+			 param->medium,
+			 (param->media_state) ? 0 : param->speed*100,
+			 (param->media_state) ? "disconnected" : "connected",
+			 param->vendorID, param->vendorDescr);
+	return 0;
+}
+
+static ssize_t rndis_proc_write(struct file *file, const char __user *buffer,
+				size_t count, loff_t *ppos)
+{
+	rndis_params *p = PDE(file->f_path.dentry->d_inode)->data;
+	u32 speed = 0;
+	int i, fl_speed = 0;
+
+	for (i = 0; i < count; i++) {
+		char c;
+		if (get_user(c, buffer))
+			return -EFAULT;
+		switch (c) {
+		case '0':
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+		case '8':
+		case '9':
+			fl_speed = 1;
+			speed = speed * 10 + c - '0';
+			break;
+		case 'C':
+		case 'c':
+			rndis_signal_connect(p->confignr);
+			break;
+		case 'D':
+		case 'd':
+			rndis_signal_disconnect(p->confignr);
+			break;
+		default:
+			if (fl_speed) p->speed = speed;
+			else pr_debug("%c is not valid\n", c);
+			break;
+		}
+
+		buffer++;
+	}
+
+	return count;
+}
+
+static int rndis_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, rndis_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations rndis_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= rndis_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.write		= rndis_proc_write,
+};
+
+#define	NAME_TEMPLATE "driver/rndis-%03d"
+
+static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
+
+#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
+
+
+int rndis_init(void)
+{
+	u8 i;
+
+	for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
+#ifdef	CONFIG_USB_GADGET_DEBUG_FILES
+		char name [20];
+
+		sprintf(name, NAME_TEMPLATE, i);
+		rndis_connect_state[i] = proc_create_data(name, 0660, NULL,
+					&rndis_proc_fops,
+					(void *)(rndis_per_dev_params + i));
+		if (!rndis_connect_state[i]) {
+			pr_debug("%s: remove entries", __func__);
+			while (i) {
+				sprintf(name, NAME_TEMPLATE, --i);
+				remove_proc_entry(name, NULL);
+			}
+			pr_debug("\n");
+			return -EIO;
+		}
+#endif
+		rndis_per_dev_params[i].confignr = i;
+		rndis_per_dev_params[i].used = 0;
+		rndis_per_dev_params[i].state = RNDIS_UNINITIALIZED;
+		rndis_per_dev_params[i].media_state
+				= RNDIS_MEDIA_STATE_DISCONNECTED;
+		INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue));
+	}
+
+	return 0;
+}
+
+void rndis_exit(void)
+{
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+	u8 i;
+	char name[20];
+
+	for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
+		sprintf(name, NAME_TEMPLATE, i);
+		remove_proc_entry(name, NULL);
+	}
+#endif
+}
diff --git a/drivers/staging/ccg/rndis.h b/drivers/staging/ccg/rndis.h
new file mode 100644
index 00000000000..0647f2f34e8
--- /dev/null
+++ b/drivers/staging/ccg/rndis.h
@@ -0,0 +1,222 @@
+/*
+ * RNDIS	Definitions for Remote NDIS
+ *
+ * Authors:	Benedikt Spranger, Pengutronix
+ *		Robert Schwebel, Pengutronix
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		version 2, as published by the Free Software Foundation.
+ *
+ *		This software was originally developed in conformance with
+ *		Microsoft's Remote NDIS Specification License Agreement.
+ */
+
+#ifndef _LINUX_RNDIS_H
+#define _LINUX_RNDIS_H
+
+#include <linux/rndis.h>
+#include "ndis.h"
+
+#define RNDIS_MAXIMUM_FRAME_SIZE	1518
+#define RNDIS_MAX_TOTAL_SIZE		1558
+
+typedef struct rndis_init_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	MajorVersion;
+	__le32	MinorVersion;
+	__le32	MaxTransferSize;
+} rndis_init_msg_type;
+
+typedef struct rndis_init_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+	__le32	MajorVersion;
+	__le32	MinorVersion;
+	__le32	DeviceFlags;
+	__le32	Medium;
+	__le32	MaxPacketsPerTransfer;
+	__le32	MaxTransferSize;
+	__le32	PacketAlignmentFactor;
+	__le32	AFListOffset;
+	__le32	AFListSize;
+} rndis_init_cmplt_type;
+
+typedef struct rndis_halt_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+} rndis_halt_msg_type;
+
+typedef struct rndis_query_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	OID;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+	__le32	DeviceVcHandle;
+} rndis_query_msg_type;
+
+typedef struct rndis_query_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+} rndis_query_cmplt_type;
+
+typedef struct rndis_set_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	OID;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+	__le32	DeviceVcHandle;
+} rndis_set_msg_type;
+
+typedef struct rndis_set_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+} rndis_set_cmplt_type;
+
+typedef struct rndis_reset_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Reserved;
+} rndis_reset_msg_type;
+
+typedef struct rndis_reset_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Status;
+	__le32	AddressingReset;
+} rndis_reset_cmplt_type;
+
+typedef struct rndis_indicate_status_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Status;
+	__le32	StatusBufferLength;
+	__le32	StatusBufferOffset;
+} rndis_indicate_status_msg_type;
+
+typedef struct rndis_keepalive_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+} rndis_keepalive_msg_type;
+
+typedef struct rndis_keepalive_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+} rndis_keepalive_cmplt_type;
+
+struct rndis_packet_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	DataOffset;
+	__le32	DataLength;
+	__le32	OOBDataOffset;
+	__le32	OOBDataLength;
+	__le32	NumOOBDataElements;
+	__le32	PerPacketInfoOffset;
+	__le32	PerPacketInfoLength;
+	__le32	VcHandle;
+	__le32	Reserved;
+} __attribute__ ((packed));
+
+struct rndis_config_parameter
+{
+	__le32	ParameterNameOffset;
+	__le32	ParameterNameLength;
+	__le32	ParameterType;
+	__le32	ParameterValueOffset;
+	__le32	ParameterValueLength;
+};
+
+/* implementation specific */
+enum rndis_state
+{
+	RNDIS_UNINITIALIZED,
+	RNDIS_INITIALIZED,
+	RNDIS_DATA_INITIALIZED,
+};
+
+typedef struct rndis_resp_t
+{
+	struct list_head	list;
+	u8			*buf;
+	u32			length;
+	int			send;
+} rndis_resp_t;
+
+typedef struct rndis_params
+{
+	u8			confignr;
+	u8			used;
+	u16			saved_filter;
+	enum rndis_state	state;
+	u32			medium;
+	u32			speed;
+	u32			media_state;
+
+	const u8		*host_mac;
+	u16			*filter;
+	struct net_device	*dev;
+
+	u32			vendorID;
+	const char		*vendorDescr;
+	void			(*resp_avail)(void *v);
+	void			*v;
+	struct list_head	resp_queue;
+} rndis_params;
+
+/* RNDIS Message parser and other useless functions */
+int  rndis_msg_parser (u8 configNr, u8 *buf);
+int  rndis_register(void (*resp_avail)(void *v), void *v);
+void rndis_deregister (int configNr);
+int  rndis_set_param_dev (u8 configNr, struct net_device *dev,
+			 u16 *cdc_filter);
+int  rndis_set_param_vendor (u8 configNr, u32 vendorID,
+			    const char *vendorDescr);
+int  rndis_set_param_medium (u8 configNr, u32 medium, u32 speed);
+void rndis_add_hdr (struct sk_buff *skb);
+int rndis_rm_hdr(struct gether *port, struct sk_buff *skb,
+			struct sk_buff_head *list);
+u8   *rndis_get_next_response (int configNr, u32 *length);
+void rndis_free_response (int configNr, u8 *buf);
+
+void rndis_uninit (int configNr);
+int  rndis_signal_connect (int configNr);
+int  rndis_signal_disconnect (int configNr);
+int  rndis_state (int configNr);
+extern void rndis_set_host_mac (int configNr, const u8 *addr);
+
+int rndis_init(void);
+void rndis_exit (void);
+
+#endif  /* _LINUX_RNDIS_H */
diff --git a/drivers/staging/ccg/storage_common.c b/drivers/staging/ccg/storage_common.c
new file mode 100644
index 00000000000..8d9bcd8207c
--- /dev/null
+++ b/drivers/staging/ccg/storage_common.c
@@ -0,0 +1,893 @@
+/*
+ * storage_common.c -- Common definitions for mass storage functionality
+ *
+ * Copyright (C) 2003-2008 Alan Stern
+ * Copyeight (C) 2009 Samsung Electronics
+ * Author: Michal Nazarewicz (mina86@mina86.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+
+/*
+ * This file requires the following identifiers used in USB strings to
+ * be defined (each of type pointer to char):
+ *  - fsg_string_manufacturer -- name of the manufacturer
+ *  - fsg_string_product      -- name of the product
+ *  - fsg_string_config       -- name of the configuration
+ *  - fsg_string_interface    -- name of the interface
+ * The first four are only needed when FSG_DESCRIPTORS_DEVICE_STRINGS
+ * macro is defined prior to including this file.
+ */
+
+/*
+ * When FSG_NO_INTR_EP is defined fsg_fs_intr_in_desc and
+ * fsg_hs_intr_in_desc objects as well as
+ * FSG_FS_FUNCTION_PRE_EP_ENTRIES and FSG_HS_FUNCTION_PRE_EP_ENTRIES
+ * macros are not defined.
+ *
+ * When FSG_NO_DEVICE_STRINGS is defined FSG_STRING_MANUFACTURER,
+ * FSG_STRING_PRODUCT, FSG_STRING_SERIAL and FSG_STRING_CONFIG are not
+ * defined (as well as corresponding entries in string tables are
+ * missing) and FSG_STRING_INTERFACE has value of zero.
+ *
+ * When FSG_NO_OTG is defined fsg_otg_desc won't be defined.
+ */
+
+/*
+ * When USB_GADGET_DEBUG_FILES is defined the module param num_buffers
+ * sets the number of pipeline buffers (length of the fsg_buffhd array).
+ * The valid range of num_buffers is: num >= 2 && num <= 4.
+ */
+
+
+#include <linux/usb/storage.h>
+#include <scsi/scsi.h>
+#include <asm/unaligned.h>
+
+
+/*
+ * Thanks to NetChip Technologies for donating this product ID.
+ *
+ * DO NOT REUSE THESE IDs with any other driver!!  Ever!!
+ * Instead:  allocate your own, using normal USB-IF procedures.
+ */
+#define FSG_VENDOR_ID	0x0525	/* NetChip */
+#define FSG_PRODUCT_ID	0xa4a5	/* Linux-USB File-backed Storage Gadget */
+
+
+/*-------------------------------------------------------------------------*/
+
+
+#ifndef DEBUG
+#undef VERBOSE_DEBUG
+#undef DUMP_MSGS
+#endif /* !DEBUG */
+
+#ifdef VERBOSE_DEBUG
+#define VLDBG	LDBG
+#else
+#define VLDBG(lun, fmt, args...) do { } while (0)
+#endif /* VERBOSE_DEBUG */
+
+#define LDBG(lun, fmt, args...)   dev_dbg (&(lun)->dev, fmt, ## args)
+#define LERROR(lun, fmt, args...) dev_err (&(lun)->dev, fmt, ## args)
+#define LWARN(lun, fmt, args...)  dev_warn(&(lun)->dev, fmt, ## args)
+#define LINFO(lun, fmt, args...)  dev_info(&(lun)->dev, fmt, ## args)
+
+/*
+ * Keep those macros in sync with those in
+ * include/linux/usb/composite.h or else GCC will complain.  If they
+ * are identical (the same names of arguments, white spaces in the
+ * same places) GCC will allow redefinition otherwise (even if some
+ * white space is removed or added) warning will be issued.
+ *
+ * Those macros are needed here because File Storage Gadget does not
+ * include the composite.h header.  For composite gadgets those macros
+ * are redundant since composite.h is included any way.
+ *
+ * One could check whether those macros are already defined (which
+ * would indicate composite.h had been included) or not (which would
+ * indicate we were in FSG) but this is not done because a warning is
+ * desired if definitions here differ from the ones in composite.h.
+ *
+ * We want the definitions to match and be the same in File Storage
+ * Gadget as well as Mass Storage Function (and so composite gadgets
+ * using MSF).  If someone changes them in composite.h it will produce
+ * a warning in this file when building MSF.
+ */
+#define DBG(d, fmt, args...)     dev_dbg(&(d)->gadget->dev , fmt , ## args)
+#define VDBG(d, fmt, args...)    dev_vdbg(&(d)->gadget->dev , fmt , ## args)
+#define ERROR(d, fmt, args...)   dev_err(&(d)->gadget->dev , fmt , ## args)
+#define WARNING(d, fmt, args...) dev_warn(&(d)->gadget->dev , fmt , ## args)
+#define INFO(d, fmt, args...)    dev_info(&(d)->gadget->dev , fmt , ## args)
+
+
+
+#ifdef DUMP_MSGS
+
+#  define dump_msg(fsg, /* const char * */ label,			\
+		   /* const u8 * */ buf, /* unsigned */ length) do {	\
+	if (length < 512) {						\
+		DBG(fsg, "%s, length %u:\n", label, length);		\
+		print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET,	\
+			       16, 1, buf, length, 0);			\
+	}								\
+} while (0)
+
+#  define dump_cdb(fsg) do { } while (0)
+
+#else
+
+#  define dump_msg(fsg, /* const char * */ label, \
+		   /* const u8 * */ buf, /* unsigned */ length) do { } while (0)
+
+#  ifdef VERBOSE_DEBUG
+
+#    define dump_cdb(fsg)						\
+	print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE,	\
+		       16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0)		\
+
+#  else
+
+#    define dump_cdb(fsg) do { } while (0)
+
+#  endif /* VERBOSE_DEBUG */
+
+#endif /* DUMP_MSGS */
+
+/*-------------------------------------------------------------------------*/
+
+/* CBI Interrupt data structure */
+struct interrupt_data {
+	u8	bType;
+	u8	bValue;
+};
+
+#define CBI_INTERRUPT_DATA_LEN		2
+
+/* CBI Accept Device-Specific Command request */
+#define USB_CBI_ADSC_REQUEST		0x00
+
+
+/* Length of a SCSI Command Data Block */
+#define MAX_COMMAND_SIZE	16
+
+/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */
+#define SS_NO_SENSE				0
+#define SS_COMMUNICATION_FAILURE		0x040800
+#define SS_INVALID_COMMAND			0x052000
+#define SS_INVALID_FIELD_IN_CDB			0x052400
+#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE	0x052100
+#define SS_LOGICAL_UNIT_NOT_SUPPORTED		0x052500
+#define SS_MEDIUM_NOT_PRESENT			0x023a00
+#define SS_MEDIUM_REMOVAL_PREVENTED		0x055302
+#define SS_NOT_READY_TO_READY_TRANSITION	0x062800
+#define SS_RESET_OCCURRED			0x062900
+#define SS_SAVING_PARAMETERS_NOT_SUPPORTED	0x053900
+#define SS_UNRECOVERED_READ_ERROR		0x031100
+#define SS_WRITE_ERROR				0x030c02
+#define SS_WRITE_PROTECTED			0x072700
+
+#define SK(x)		((u8) ((x) >> 16))	/* Sense Key byte, etc. */
+#define ASC(x)		((u8) ((x) >> 8))
+#define ASCQ(x)		((u8) (x))
+
+
+/*-------------------------------------------------------------------------*/
+
+
+struct fsg_lun {
+	struct file	*filp;
+	loff_t		file_length;
+	loff_t		num_sectors;
+
+	unsigned int	initially_ro:1;
+	unsigned int	ro:1;
+	unsigned int	removable:1;
+	unsigned int	cdrom:1;
+	unsigned int	prevent_medium_removal:1;
+	unsigned int	registered:1;
+	unsigned int	info_valid:1;
+	unsigned int	nofua:1;
+
+	u32		sense_data;
+	u32		sense_data_info;
+	u32		unit_attention_data;
+
+	unsigned int	blkbits;	/* Bits of logical block size of bound block device */
+	unsigned int	blksize;	/* logical block size of bound block device */
+	struct device	dev;
+};
+
+#define fsg_lun_is_open(curlun)	((curlun)->filp != NULL)
+
+static struct fsg_lun *fsg_lun_from_dev(struct device *dev)
+{
+	return container_of(dev, struct fsg_lun, dev);
+}
+
+
+/* Big enough to hold our biggest descriptor */
+#define EP0_BUFSIZE	256
+#define DELAYED_STATUS	(EP0_BUFSIZE + 999)	/* An impossibly large value */
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
+module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);
+MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers");
+
+#else
+
+/*
+ * Number of buffers we will use.
+ * 2 is usually enough for good buffering pipeline
+ */
+#define fsg_num_buffers	CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
+
+#endif /* CONFIG_USB_DEBUG */
+
+/* check if fsg_num_buffers is within a valid range */
+static inline int fsg_num_buffers_validate(void)
+{
+	if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4)
+		return 0;
+	pr_err("fsg_num_buffers %u is out of range (%d to %d)\n",
+	       fsg_num_buffers, 2 ,4);
+	return -EINVAL;
+}
+
+/* Default size of buffer length. */
+#define FSG_BUFLEN	((u32)16384)
+
+/* Maximal number of LUNs supported in mass storage function */
+#define FSG_MAX_LUNS	8
+
+enum fsg_buffer_state {
+	BUF_STATE_EMPTY = 0,
+	BUF_STATE_FULL,
+	BUF_STATE_BUSY
+};
+
+struct fsg_buffhd {
+	void				*buf;
+	enum fsg_buffer_state		state;
+	struct fsg_buffhd		*next;
+
+	/*
+	 * The NetChip 2280 is faster, and handles some protocol faults
+	 * better, if we don't submit any short bulk-out read requests.
+	 * So we will record the intended request length here.
+	 */
+	unsigned int			bulk_out_intended_length;
+
+	struct usb_request		*inreq;
+	int				inreq_busy;
+	struct usb_request		*outreq;
+	int				outreq_busy;
+};
+
+enum fsg_state {
+	/* This one isn't used anywhere */
+	FSG_STATE_COMMAND_PHASE = -10,
+	FSG_STATE_DATA_PHASE,
+	FSG_STATE_STATUS_PHASE,
+
+	FSG_STATE_IDLE = 0,
+	FSG_STATE_ABORT_BULK_OUT,
+	FSG_STATE_RESET,
+	FSG_STATE_INTERFACE_CHANGE,
+	FSG_STATE_CONFIG_CHANGE,
+	FSG_STATE_DISCONNECT,
+	FSG_STATE_EXIT,
+	FSG_STATE_TERMINATED
+};
+
+enum data_direction {
+	DATA_DIR_UNKNOWN = 0,
+	DATA_DIR_FROM_HOST,
+	DATA_DIR_TO_HOST,
+	DATA_DIR_NONE
+};
+
+
+/*-------------------------------------------------------------------------*/
+
+
+static inline u32 get_unaligned_be24(u8 *buf)
+{
+	return 0xffffff & (u32) get_unaligned_be32(buf - 1);
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+
+enum {
+#ifndef FSG_NO_DEVICE_STRINGS
+	FSG_STRING_MANUFACTURER	= 1,
+	FSG_STRING_PRODUCT,
+	FSG_STRING_SERIAL,
+	FSG_STRING_CONFIG,
+#endif
+	FSG_STRING_INTERFACE
+};
+
+
+#ifndef FSG_NO_OTG
+static struct usb_otg_descriptor
+fsg_otg_desc = {
+	.bLength =		sizeof fsg_otg_desc,
+	.bDescriptorType =	USB_DT_OTG,
+
+	.bmAttributes =		USB_OTG_SRP,
+};
+#endif
+
+/* There is only one interface. */
+
+static struct usb_interface_descriptor
+fsg_intf_desc = {
+	.bLength =		sizeof fsg_intf_desc,
+	.bDescriptorType =	USB_DT_INTERFACE,
+
+	.bNumEndpoints =	2,		/* Adjusted during fsg_bind() */
+	.bInterfaceClass =	USB_CLASS_MASS_STORAGE,
+	.bInterfaceSubClass =	USB_SC_SCSI,	/* Adjusted during fsg_bind() */
+	.bInterfaceProtocol =	USB_PR_BULK,	/* Adjusted during fsg_bind() */
+	.iInterface =		FSG_STRING_INTERFACE,
+};
+
+/*
+ * Three full-speed endpoint descriptors: bulk-in, bulk-out, and
+ * interrupt-in.
+ */
+
+static struct usb_endpoint_descriptor
+fsg_fs_bulk_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	/* wMaxPacketSize set by autoconfiguration */
+};
+
+static struct usb_endpoint_descriptor
+fsg_fs_bulk_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	/* wMaxPacketSize set by autoconfiguration */
+};
+
+#ifndef FSG_NO_INTR_EP
+
+static struct usb_endpoint_descriptor
+fsg_fs_intr_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(2),
+	.bInterval =		32,	/* frames -> 32 ms */
+};
+
+#ifndef FSG_NO_OTG
+#  define FSG_FS_FUNCTION_PRE_EP_ENTRIES	2
+#else
+#  define FSG_FS_FUNCTION_PRE_EP_ENTRIES	1
+#endif
+
+#endif
+
+static struct usb_descriptor_header *fsg_fs_function[] = {
+#ifndef FSG_NO_OTG
+	(struct usb_descriptor_header *) &fsg_otg_desc,
+#endif
+	(struct usb_descriptor_header *) &fsg_intf_desc,
+	(struct usb_descriptor_header *) &fsg_fs_bulk_in_desc,
+	(struct usb_descriptor_header *) &fsg_fs_bulk_out_desc,
+#ifndef FSG_NO_INTR_EP
+	(struct usb_descriptor_header *) &fsg_fs_intr_in_desc,
+#endif
+	NULL,
+};
+
+
+/*
+ * USB 2.0 devices need to expose both high speed and full speed
+ * descriptors, unless they only run at full speed.
+ *
+ * That means alternate endpoint descriptors (bigger packets)
+ * and a "device qualifier" ... plus more construction options
+ * for the configuration descriptor.
+ */
+static struct usb_endpoint_descriptor
+fsg_hs_bulk_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	/* bEndpointAddress copied from fs_bulk_in_desc during fsg_bind() */
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512),
+};
+
+static struct usb_endpoint_descriptor
+fsg_hs_bulk_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	/* bEndpointAddress copied from fs_bulk_out_desc during fsg_bind() */
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512),
+	.bInterval =		1,	/* NAK every 1 uframe */
+};
+
+#ifndef FSG_NO_INTR_EP
+
+static struct usb_endpoint_descriptor
+fsg_hs_intr_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	/* bEndpointAddress copied from fs_intr_in_desc during fsg_bind() */
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(2),
+	.bInterval =		9,	/* 2**(9-1) = 256 uframes -> 32 ms */
+};
+
+#ifndef FSG_NO_OTG
+#  define FSG_HS_FUNCTION_PRE_EP_ENTRIES	2
+#else
+#  define FSG_HS_FUNCTION_PRE_EP_ENTRIES	1
+#endif
+
+#endif
+
+static struct usb_descriptor_header *fsg_hs_function[] = {
+#ifndef FSG_NO_OTG
+	(struct usb_descriptor_header *) &fsg_otg_desc,
+#endif
+	(struct usb_descriptor_header *) &fsg_intf_desc,
+	(struct usb_descriptor_header *) &fsg_hs_bulk_in_desc,
+	(struct usb_descriptor_header *) &fsg_hs_bulk_out_desc,
+#ifndef FSG_NO_INTR_EP
+	(struct usb_descriptor_header *) &fsg_hs_intr_in_desc,
+#endif
+	NULL,
+};
+
+static struct usb_endpoint_descriptor
+fsg_ss_bulk_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	/* bEndpointAddress copied from fs_bulk_in_desc during fsg_bind() */
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = {
+	.bLength =		sizeof(fsg_ss_bulk_in_comp_desc),
+	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
+
+	/*.bMaxBurst =		DYNAMIC, */
+};
+
+static struct usb_endpoint_descriptor
+fsg_ss_bulk_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	/* bEndpointAddress copied from fs_bulk_out_desc during fsg_bind() */
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = {
+	.bLength =		sizeof(fsg_ss_bulk_in_comp_desc),
+	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
+
+	/*.bMaxBurst =		DYNAMIC, */
+};
+
+#ifndef FSG_NO_INTR_EP
+
+static struct usb_endpoint_descriptor
+fsg_ss_intr_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+
+	/* bEndpointAddress copied from fs_intr_in_desc during fsg_bind() */
+	.bmAttributes =		USB_ENDPOINT_XFER_INT,
+	.wMaxPacketSize =	cpu_to_le16(2),
+	.bInterval =		9,	/* 2**(9-1) = 256 uframes -> 32 ms */
+};
+
+static struct usb_ss_ep_comp_descriptor fsg_ss_intr_in_comp_desc = {
+	.bLength =		sizeof(fsg_ss_bulk_in_comp_desc),
+	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
+
+	.wBytesPerInterval =	cpu_to_le16(2),
+};
+
+#ifndef FSG_NO_OTG
+#  define FSG_SS_FUNCTION_PRE_EP_ENTRIES	2
+#else
+#  define FSG_SS_FUNCTION_PRE_EP_ENTRIES	1
+#endif
+
+#endif
+
+static __maybe_unused struct usb_ext_cap_descriptor fsg_ext_cap_desc = {
+	.bLength =		USB_DT_USB_EXT_CAP_SIZE,
+	.bDescriptorType =	USB_DT_DEVICE_CAPABILITY,
+	.bDevCapabilityType =	USB_CAP_TYPE_EXT,
+
+	.bmAttributes =		cpu_to_le32(USB_LPM_SUPPORT),
+};
+
+static __maybe_unused struct usb_ss_cap_descriptor fsg_ss_cap_desc = {
+	.bLength =		USB_DT_USB_SS_CAP_SIZE,
+	.bDescriptorType =	USB_DT_DEVICE_CAPABILITY,
+	.bDevCapabilityType =	USB_SS_CAP_TYPE,
+
+	/* .bmAttributes = LTM is not supported yet */
+
+	.wSpeedSupported =	cpu_to_le16(USB_LOW_SPEED_OPERATION
+		| USB_FULL_SPEED_OPERATION
+		| USB_HIGH_SPEED_OPERATION
+		| USB_5GBPS_OPERATION),
+	.bFunctionalitySupport = USB_LOW_SPEED_OPERATION,
+	.bU1devExitLat =	USB_DEFAULT_U1_DEV_EXIT_LAT,
+	.bU2DevExitLat =	cpu_to_le16(USB_DEFAULT_U2_DEV_EXIT_LAT),
+};
+
+static __maybe_unused struct usb_bos_descriptor fsg_bos_desc = {
+	.bLength =		USB_DT_BOS_SIZE,
+	.bDescriptorType =	USB_DT_BOS,
+
+	.wTotalLength =		cpu_to_le16(USB_DT_BOS_SIZE
+				+ USB_DT_USB_EXT_CAP_SIZE
+				+ USB_DT_USB_SS_CAP_SIZE),
+
+	.bNumDeviceCaps =	2,
+};
+
+static struct usb_descriptor_header *fsg_ss_function[] = {
+#ifndef FSG_NO_OTG
+	(struct usb_descriptor_header *) &fsg_otg_desc,
+#endif
+	(struct usb_descriptor_header *) &fsg_intf_desc,
+	(struct usb_descriptor_header *) &fsg_ss_bulk_in_desc,
+	(struct usb_descriptor_header *) &fsg_ss_bulk_in_comp_desc,
+	(struct usb_descriptor_header *) &fsg_ss_bulk_out_desc,
+	(struct usb_descriptor_header *) &fsg_ss_bulk_out_comp_desc,
+#ifndef FSG_NO_INTR_EP
+	(struct usb_descriptor_header *) &fsg_ss_intr_in_desc,
+	(struct usb_descriptor_header *) &fsg_ss_intr_in_comp_desc,
+#endif
+	NULL,
+};
+
+/* Maxpacket and other transfer characteristics vary by speed. */
+static __maybe_unused struct usb_endpoint_descriptor *
+fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
+		struct usb_endpoint_descriptor *hs,
+		struct usb_endpoint_descriptor *ss)
+{
+	if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
+		return ss;
+	else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
+		return hs;
+	return fs;
+}
+
+
+/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
+static struct usb_string		fsg_strings[] = {
+#ifndef FSG_NO_DEVICE_STRINGS
+	{FSG_STRING_MANUFACTURER,	fsg_string_manufacturer},
+	{FSG_STRING_PRODUCT,		fsg_string_product},
+	{FSG_STRING_SERIAL,		""},
+	{FSG_STRING_CONFIG,		fsg_string_config},
+#endif
+	{FSG_STRING_INTERFACE,		fsg_string_interface},
+	{}
+};
+
+static struct usb_gadget_strings	fsg_stringtab = {
+	.language	= 0x0409,		/* en-us */
+	.strings	= fsg_strings,
+};
+
+
+ /*-------------------------------------------------------------------------*/
+
+/*
+ * If the next two routines are called while the gadget is registered,
+ * the caller must own fsg->filesem for writing.
+ */
+
+static void fsg_lun_close(struct fsg_lun *curlun)
+{
+	if (curlun->filp) {
+		LDBG(curlun, "close backing file\n");
+		fput(curlun->filp);
+		curlun->filp = NULL;
+	}
+}
+
+
+static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
+{
+	int				ro;
+	struct file			*filp = NULL;
+	int				rc = -EINVAL;
+	struct inode			*inode = NULL;
+	loff_t				size;
+	loff_t				num_sectors;
+	loff_t				min_sectors;
+	unsigned int			blkbits;
+	unsigned int			blksize;
+
+	/* R/W if we can, R/O if we must */
+	ro = curlun->initially_ro;
+	if (!ro) {
+		filp = filp_open(filename, O_RDWR | O_LARGEFILE, 0);
+		if (PTR_ERR(filp) == -EROFS || PTR_ERR(filp) == -EACCES)
+			ro = 1;
+	}
+	if (ro)
+		filp = filp_open(filename, O_RDONLY | O_LARGEFILE, 0);
+	if (IS_ERR(filp)) {
+		LINFO(curlun, "unable to open backing file: %s\n", filename);
+		return PTR_ERR(filp);
+	}
+
+	if (!(filp->f_mode & FMODE_WRITE))
+		ro = 1;
+
+	inode = filp->f_path.dentry->d_inode;
+	if ((!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))) {
+		LINFO(curlun, "invalid file type: %s\n", filename);
+		goto out;
+	}
+
+	/*
+	 * If we can't read the file, it's no good.
+	 * If we can't write the file, use it read-only.
+	 */
+	if (!(filp->f_op->read || filp->f_op->aio_read)) {
+		LINFO(curlun, "file not readable: %s\n", filename);
+		goto out;
+	}
+	if (!(filp->f_op->write || filp->f_op->aio_write))
+		ro = 1;
+
+	size = i_size_read(inode->i_mapping->host);
+	if (size < 0) {
+		LINFO(curlun, "unable to find file size: %s\n", filename);
+		rc = (int) size;
+		goto out;
+	}
+
+	if (curlun->cdrom) {
+		blksize = 2048;
+		blkbits = 11;
+	} else if (inode->i_bdev) {
+		blksize = bdev_logical_block_size(inode->i_bdev);
+		blkbits = blksize_bits(blksize);
+	} else {
+		blksize = 512;
+		blkbits = 9;
+	}
+
+	num_sectors = size >> blkbits; /* File size in logic-block-size blocks */
+	min_sectors = 1;
+	if (curlun->cdrom) {
+		min_sectors = 300;	/* Smallest track is 300 frames */
+		if (num_sectors >= 256*60*75) {
+			num_sectors = 256*60*75 - 1;
+			LINFO(curlun, "file too big: %s\n", filename);
+			LINFO(curlun, "using only first %d blocks\n",
+					(int) num_sectors);
+		}
+	}
+	if (num_sectors < min_sectors) {
+		LINFO(curlun, "file too small: %s\n", filename);
+		rc = -ETOOSMALL;
+		goto out;
+	}
+
+	if (fsg_lun_is_open(curlun))
+		fsg_lun_close(curlun);
+
+	curlun->blksize = blksize;
+	curlun->blkbits = blkbits;
+	curlun->ro = ro;
+	curlun->filp = filp;
+	curlun->file_length = size;
+	curlun->num_sectors = num_sectors;
+	LDBG(curlun, "open backing file: %s\n", filename);
+	return 0;
+
+out:
+	fput(filp);
+	return rc;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Sync the file data, don't bother with the metadata.
+ * This code was copied from fs/buffer.c:sys_fdatasync().
+ */
+static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
+{
+	struct file	*filp = curlun->filp;
+
+	if (curlun->ro || !filp)
+		return 0;
+	return vfs_fsync(filp, 1);
+}
+
+static void store_cdrom_address(u8 *dest, int msf, u32 addr)
+{
+	if (msf) {
+		/* Convert to Minutes-Seconds-Frames */
+		addr >>= 2;		/* Convert to 2048-byte frames */
+		addr += 2*75;		/* Lead-in occupies 2 seconds */
+		dest[3] = addr % 75;	/* Frames */
+		addr /= 75;
+		dest[2] = addr % 60;	/* Seconds */
+		addr /= 60;
+		dest[1] = addr;		/* Minutes */
+		dest[0] = 0;		/* Reserved */
+	} else {
+		/* Absolute sector */
+		put_unaligned_be32(addr, dest);
+	}
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+
+static ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
+
+	return sprintf(buf, "%d\n", fsg_lun_is_open(curlun)
+				  ? curlun->ro
+				  : curlun->initially_ro);
+}
+
+static ssize_t fsg_show_nofua(struct device *dev, struct device_attribute *attr,
+			      char *buf)
+{
+	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
+
+	return sprintf(buf, "%u\n", curlun->nofua);
+}
+
+static ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
+	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
+	char		*p;
+	ssize_t		rc;
+
+	down_read(filesem);
+	if (fsg_lun_is_open(curlun)) {	/* Get the complete pathname */
+		p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1);
+		if (IS_ERR(p))
+			rc = PTR_ERR(p);
+		else {
+			rc = strlen(p);
+			memmove(buf, p, rc);
+			buf[rc] = '\n';		/* Add a newline */
+			buf[++rc] = 0;
+		}
+	} else {				/* No file, return 0 bytes */
+		*buf = 0;
+		rc = 0;
+	}
+	up_read(filesem);
+	return rc;
+}
+
+
+static ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	ssize_t		rc;
+	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
+	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
+	unsigned	ro;
+
+	rc = kstrtouint(buf, 2, &ro);
+	if (rc)
+		return rc;
+
+	/*
+	 * Allow the write-enable status to change only while the
+	 * backing file is closed.
+	 */
+	down_read(filesem);
+	if (fsg_lun_is_open(curlun)) {
+		LDBG(curlun, "read-only status change prevented\n");
+		rc = -EBUSY;
+	} else {
+		curlun->ro = ro;
+		curlun->initially_ro = ro;
+		LDBG(curlun, "read-only status set to %d\n", curlun->ro);
+		rc = count;
+	}
+	up_read(filesem);
+	return rc;
+}
+
+static ssize_t fsg_store_nofua(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
+	unsigned	nofua;
+	int		ret;
+
+	ret = kstrtouint(buf, 2, &nofua);
+	if (ret)
+		return ret;
+
+	/* Sync data when switching from async mode to sync */
+	if (!nofua && curlun->nofua)
+		fsg_lun_fsync_sub(curlun);
+
+	curlun->nofua = nofua;
+
+	return count;
+}
+
+static ssize_t fsg_store_file(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
+	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
+	int		rc = 0;
+
+	if (curlun->prevent_medium_removal && fsg_lun_is_open(curlun)) {
+		LDBG(curlun, "eject attempt prevented\n");
+		return -EBUSY;				/* "Door is locked" */
+	}
+
+	/* Remove a trailing newline */
+	if (count > 0 && buf[count-1] == '\n')
+		((char *) buf)[count-1] = 0;		/* Ugh! */
+
+	/* Load new medium */
+	down_write(filesem);
+	if (count > 0 && buf[0]) {
+		/* fsg_lun_open() will close existing file if any. */
+		rc = fsg_lun_open(curlun, buf);
+		if (rc == 0)
+			curlun->unit_attention_data =
+					SS_NOT_READY_TO_READY_TRANSITION;
+	} else if (fsg_lun_is_open(curlun)) {
+		fsg_lun_close(curlun);
+		curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
+	}
+	up_write(filesem);
+	return (rc < 0 ? rc : count);
+}
diff --git a/drivers/staging/ccg/u_ether.c b/drivers/staging/ccg/u_ether.c
new file mode 100644
index 00000000000..d0dabcf015a
--- /dev/null
+++ b/drivers/staging/ccg/u_ether.c
@@ -0,0 +1,986 @@
+/*
+ * u_ether.c -- Ethernet-over-USB link layer utilities for Gadget stack
+ *
+ * Copyright (C) 2003-2005,2008 David Brownell
+ * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/* #define VERBOSE_DEBUG */
+
+#include <linux/kernel.h>
+#include <linux/gfp.h>
+#include <linux/device.h>
+#include <linux/ctype.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+
+#include "u_ether.h"
+
+
+/*
+ * This component encapsulates the Ethernet link glue needed to provide
+ * one (!) network link through the USB gadget stack, normally "usb0".
+ *
+ * The control and data models are handled by the function driver which
+ * connects to this code; such as CDC Ethernet (ECM or EEM),
+ * "CDC Subset", or RNDIS.  That includes all descriptor and endpoint
+ * management.
+ *
+ * Link level addressing is handled by this component using module
+ * parameters; if no such parameters are provided, random link level
+ * addresses are used.  Each end of the link uses one address.  The
+ * host end address is exported in various ways, and is often recorded
+ * in configuration databases.
+ *
+ * The driver which assembles each configuration using such a link is
+ * responsible for ensuring that each configuration includes at most one
+ * instance of is network link.  (The network layer provides ways for
+ * this single "physical" link to be used by multiple virtual links.)
+ */
+
+#define UETH__VERSION	"29-May-2008"
+
+struct eth_dev {
+	/* lock is held while accessing port_usb
+	 * or updating its backlink port_usb->ioport
+	 */
+	spinlock_t		lock;
+	struct gether		*port_usb;
+
+	struct net_device	*net;
+	struct usb_gadget	*gadget;
+
+	spinlock_t		req_lock;	/* guard {rx,tx}_reqs */
+	struct list_head	tx_reqs, rx_reqs;
+	atomic_t		tx_qlen;
+
+	struct sk_buff_head	rx_frames;
+
+	unsigned		header_len;
+	struct sk_buff		*(*wrap)(struct gether *, struct sk_buff *skb);
+	int			(*unwrap)(struct gether *,
+						struct sk_buff *skb,
+						struct sk_buff_head *list);
+
+	struct work_struct	work;
+
+	unsigned long		todo;
+#define	WORK_RX_MEMORY		0
+
+	bool			zlp;
+	u8			host_mac[ETH_ALEN];
+};
+
+/*-------------------------------------------------------------------------*/
+
+#define RX_EXTRA	20	/* bytes guarding against rx overflows */
+
+#define DEFAULT_QLEN	2	/* double buffering by default */
+
+static unsigned qmult = 5;
+module_param(qmult, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");
+
+/* for dual-speed hardware, use deeper queues at high/super speed */
+static inline int qlen(struct usb_gadget *gadget)
+{
+	if (gadget_is_dualspeed(gadget) && (gadget->speed == USB_SPEED_HIGH ||
+					    gadget->speed == USB_SPEED_SUPER))
+		return qmult * DEFAULT_QLEN;
+	else
+		return DEFAULT_QLEN;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* REVISIT there must be a better way than having two sets
+ * of debug calls ...
+ */
+
+#undef DBG
+#undef VDBG
+#undef ERROR
+#undef INFO
+
+#define xprintk(d, level, fmt, args...) \
+	printk(level "%s: " fmt , (d)->net->name , ## args)
+
+#ifdef DEBUG
+#undef DEBUG
+#define DBG(dev, fmt, args...) \
+	xprintk(dev , KERN_DEBUG , fmt , ## args)
+#else
+#define DBG(dev, fmt, args...) \
+	do { } while (0)
+#endif /* DEBUG */
+
+#ifdef VERBOSE_DEBUG
+#define VDBG	DBG
+#else
+#define VDBG(dev, fmt, args...) \
+	do { } while (0)
+#endif /* DEBUG */
+
+#define ERROR(dev, fmt, args...) \
+	xprintk(dev , KERN_ERR , fmt , ## args)
+#define INFO(dev, fmt, args...) \
+	xprintk(dev , KERN_INFO , fmt , ## args)
+
+/*-------------------------------------------------------------------------*/
+
+/* NETWORK DRIVER HOOKUP (to the layer above this driver) */
+
+static int ueth_change_mtu(struct net_device *net, int new_mtu)
+{
+	struct eth_dev	*dev = netdev_priv(net);
+	unsigned long	flags;
+	int		status = 0;
+
+	/* don't change MTU on "live" link (peer won't know) */
+	spin_lock_irqsave(&dev->lock, flags);
+	if (dev->port_usb)
+		status = -EBUSY;
+	else if (new_mtu <= ETH_HLEN || new_mtu > ETH_FRAME_LEN)
+		status = -ERANGE;
+	else
+		net->mtu = new_mtu;
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	return status;
+}
+
+static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
+{
+	struct eth_dev	*dev = netdev_priv(net);
+
+	strlcpy(p->driver, "g_ether", sizeof p->driver);
+	strlcpy(p->version, UETH__VERSION, sizeof p->version);
+	strlcpy(p->fw_version, dev->gadget->name, sizeof p->fw_version);
+	strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof p->bus_info);
+}
+
+/* REVISIT can also support:
+ *   - WOL (by tracking suspends and issuing remote wakeup)
+ *   - msglevel (implies updated messaging)
+ *   - ... probably more ethtool ops
+ */
+
+static const struct ethtool_ops ops = {
+	.get_drvinfo = eth_get_drvinfo,
+	.get_link = ethtool_op_get_link,
+};
+
+static void defer_kevent(struct eth_dev *dev, int flag)
+{
+	if (test_and_set_bit(flag, &dev->todo))
+		return;
+	if (!schedule_work(&dev->work))
+		ERROR(dev, "kevent %d may have been dropped\n", flag);
+	else
+		DBG(dev, "kevent %d scheduled\n", flag);
+}
+
+static void rx_complete(struct usb_ep *ep, struct usb_request *req);
+
+static int
+rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags)
+{
+	struct sk_buff	*skb;
+	int		retval = -ENOMEM;
+	size_t		size = 0;
+	struct usb_ep	*out;
+	unsigned long	flags;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	if (dev->port_usb)
+		out = dev->port_usb->out_ep;
+	else
+		out = NULL;
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	if (!out)
+		return -ENOTCONN;
+
+
+	/* Padding up to RX_EXTRA handles minor disagreements with host.
+	 * Normally we use the USB "terminate on short read" convention;
+	 * so allow up to (N*maxpacket), since that memory is normally
+	 * already allocated.  Some hardware doesn't deal well with short
+	 * reads (e.g. DMA must be N*maxpacket), so for now don't trim a
+	 * byte off the end (to force hardware errors on overflow).
+	 *
+	 * RNDIS uses internal framing, and explicitly allows senders to
+	 * pad to end-of-packet.  That's potentially nice for speed, but
+	 * means receivers can't recover lost synch on their own (because
+	 * new packets don't only start after a short RX).
+	 */
+	size += sizeof(struct ethhdr) + dev->net->mtu + RX_EXTRA;
+	size += dev->port_usb->header_len;
+	size += out->maxpacket - 1;
+	size -= size % out->maxpacket;
+
+	if (dev->port_usb->is_fixed)
+		size = max_t(size_t, size, dev->port_usb->fixed_out_len);
+
+	skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags);
+	if (skb == NULL) {
+		DBG(dev, "no rx skb\n");
+		goto enomem;
+	}
+
+	/* Some platforms perform better when IP packets are aligned,
+	 * but on at least one, checksumming fails otherwise.  Note:
+	 * RNDIS headers involve variable numbers of LE32 values.
+	 */
+	skb_reserve(skb, NET_IP_ALIGN);
+
+	req->buf = skb->data;
+	req->length = size;
+	req->complete = rx_complete;
+	req->context = skb;
+
+	retval = usb_ep_queue(out, req, gfp_flags);
+	if (retval == -ENOMEM)
+enomem:
+		defer_kevent(dev, WORK_RX_MEMORY);
+	if (retval) {
+		DBG(dev, "rx submit --> %d\n", retval);
+		if (skb)
+			dev_kfree_skb_any(skb);
+		spin_lock_irqsave(&dev->req_lock, flags);
+		list_add(&req->list, &dev->rx_reqs);
+		spin_unlock_irqrestore(&dev->req_lock, flags);
+	}
+	return retval;
+}
+
+static void rx_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct sk_buff	*skb = req->context, *skb2;
+	struct eth_dev	*dev = ep->driver_data;
+	int		status = req->status;
+
+	switch (status) {
+
+	/* normal completion */
+	case 0:
+		skb_put(skb, req->actual);
+
+		if (dev->unwrap) {
+			unsigned long	flags;
+
+			spin_lock_irqsave(&dev->lock, flags);
+			if (dev->port_usb) {
+				status = dev->unwrap(dev->port_usb,
+							skb,
+							&dev->rx_frames);
+			} else {
+				dev_kfree_skb_any(skb);
+				status = -ENOTCONN;
+			}
+			spin_unlock_irqrestore(&dev->lock, flags);
+		} else {
+			skb_queue_tail(&dev->rx_frames, skb);
+		}
+		skb = NULL;
+
+		skb2 = skb_dequeue(&dev->rx_frames);
+		while (skb2) {
+			if (status < 0
+					|| ETH_HLEN > skb2->len
+					|| skb2->len > ETH_FRAME_LEN) {
+				dev->net->stats.rx_errors++;
+				dev->net->stats.rx_length_errors++;
+				DBG(dev, "rx length %d\n", skb2->len);
+				dev_kfree_skb_any(skb2);
+				goto next_frame;
+			}
+			skb2->protocol = eth_type_trans(skb2, dev->net);
+			dev->net->stats.rx_packets++;
+			dev->net->stats.rx_bytes += skb2->len;
+
+			/* no buffer copies needed, unless hardware can't
+			 * use skb buffers.
+			 */
+			status = netif_rx(skb2);
+next_frame:
+			skb2 = skb_dequeue(&dev->rx_frames);
+		}
+		break;
+
+	/* software-driven interface shutdown */
+	case -ECONNRESET:		/* unlink */
+	case -ESHUTDOWN:		/* disconnect etc */
+		VDBG(dev, "rx shutdown, code %d\n", status);
+		goto quiesce;
+
+	/* for hardware automagic (such as pxa) */
+	case -ECONNABORTED:		/* endpoint reset */
+		DBG(dev, "rx %s reset\n", ep->name);
+		defer_kevent(dev, WORK_RX_MEMORY);
+quiesce:
+		dev_kfree_skb_any(skb);
+		goto clean;
+
+	/* data overrun */
+	case -EOVERFLOW:
+		dev->net->stats.rx_over_errors++;
+		/* FALLTHROUGH */
+
+	default:
+		dev->net->stats.rx_errors++;
+		DBG(dev, "rx status %d\n", status);
+		break;
+	}
+
+	if (skb)
+		dev_kfree_skb_any(skb);
+	if (!netif_running(dev->net)) {
+clean:
+		spin_lock(&dev->req_lock);
+		list_add(&req->list, &dev->rx_reqs);
+		spin_unlock(&dev->req_lock);
+		req = NULL;
+	}
+	if (req)
+		rx_submit(dev, req, GFP_ATOMIC);
+}
+
+static int prealloc(struct list_head *list, struct usb_ep *ep, unsigned n)
+{
+	unsigned		i;
+	struct usb_request	*req;
+
+	if (!n)
+		return -ENOMEM;
+
+	/* queue/recycle up to N requests */
+	i = n;
+	list_for_each_entry(req, list, list) {
+		if (i-- == 0)
+			goto extra;
+	}
+	while (i--) {
+		req = usb_ep_alloc_request(ep, GFP_ATOMIC);
+		if (!req)
+			return list_empty(list) ? -ENOMEM : 0;
+		list_add(&req->list, list);
+	}
+	return 0;
+
+extra:
+	/* free extras */
+	for (;;) {
+		struct list_head	*next;
+
+		next = req->list.next;
+		list_del(&req->list);
+		usb_ep_free_request(ep, req);
+
+		if (next == list)
+			break;
+
+		req = container_of(next, struct usb_request, list);
+	}
+	return 0;
+}
+
+static int alloc_requests(struct eth_dev *dev, struct gether *link, unsigned n)
+{
+	int	status;
+
+	spin_lock(&dev->req_lock);
+	status = prealloc(&dev->tx_reqs, link->in_ep, n);
+	if (status < 0)
+		goto fail;
+	status = prealloc(&dev->rx_reqs, link->out_ep, n);
+	if (status < 0)
+		goto fail;
+	goto done;
+fail:
+	DBG(dev, "can't alloc requests\n");
+done:
+	spin_unlock(&dev->req_lock);
+	return status;
+}
+
+static void rx_fill(struct eth_dev *dev, gfp_t gfp_flags)
+{
+	struct usb_request	*req;
+	unsigned long		flags;
+
+	/* fill unused rxq slots with some skb */
+	spin_lock_irqsave(&dev->req_lock, flags);
+	while (!list_empty(&dev->rx_reqs)) {
+		req = container_of(dev->rx_reqs.next,
+				struct usb_request, list);
+		list_del_init(&req->list);
+		spin_unlock_irqrestore(&dev->req_lock, flags);
+
+		if (rx_submit(dev, req, gfp_flags) < 0) {
+			defer_kevent(dev, WORK_RX_MEMORY);
+			return;
+		}
+
+		spin_lock_irqsave(&dev->req_lock, flags);
+	}
+	spin_unlock_irqrestore(&dev->req_lock, flags);
+}
+
+static void eth_work(struct work_struct *work)
+{
+	struct eth_dev	*dev = container_of(work, struct eth_dev, work);
+
+	if (test_and_clear_bit(WORK_RX_MEMORY, &dev->todo)) {
+		if (netif_running(dev->net))
+			rx_fill(dev, GFP_KERNEL);
+	}
+
+	if (dev->todo)
+		DBG(dev, "work done, flags = 0x%lx\n", dev->todo);
+}
+
+static void tx_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct sk_buff	*skb = req->context;
+	struct eth_dev	*dev = ep->driver_data;
+
+	switch (req->status) {
+	default:
+		dev->net->stats.tx_errors++;
+		VDBG(dev, "tx err %d\n", req->status);
+		/* FALLTHROUGH */
+	case -ECONNRESET:		/* unlink */
+	case -ESHUTDOWN:		/* disconnect etc */
+		break;
+	case 0:
+		dev->net->stats.tx_bytes += skb->len;
+	}
+	dev->net->stats.tx_packets++;
+
+	spin_lock(&dev->req_lock);
+	list_add(&req->list, &dev->tx_reqs);
+	spin_unlock(&dev->req_lock);
+	dev_kfree_skb_any(skb);
+
+	atomic_dec(&dev->tx_qlen);
+	if (netif_carrier_ok(dev->net))
+		netif_wake_queue(dev->net);
+}
+
+static inline int is_promisc(u16 cdc_filter)
+{
+	return cdc_filter & USB_CDC_PACKET_TYPE_PROMISCUOUS;
+}
+
+static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
+					struct net_device *net)
+{
+	struct eth_dev		*dev = netdev_priv(net);
+	int			length = skb->len;
+	int			retval;
+	struct usb_request	*req = NULL;
+	unsigned long		flags;
+	struct usb_ep		*in;
+	u16			cdc_filter;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	if (dev->port_usb) {
+		in = dev->port_usb->in_ep;
+		cdc_filter = dev->port_usb->cdc_filter;
+	} else {
+		in = NULL;
+		cdc_filter = 0;
+	}
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	if (!in) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	/* apply outgoing CDC or RNDIS filters */
+	if (!is_promisc(cdc_filter)) {
+		u8		*dest = skb->data;
+
+		if (is_multicast_ether_addr(dest)) {
+			u16	type;
+
+			/* ignores USB_CDC_PACKET_TYPE_MULTICAST and host
+			 * SET_ETHERNET_MULTICAST_FILTERS requests
+			 */
+			if (is_broadcast_ether_addr(dest))
+				type = USB_CDC_PACKET_TYPE_BROADCAST;
+			else
+				type = USB_CDC_PACKET_TYPE_ALL_MULTICAST;
+			if (!(cdc_filter & type)) {
+				dev_kfree_skb_any(skb);
+				return NETDEV_TX_OK;
+			}
+		}
+		/* ignores USB_CDC_PACKET_TYPE_DIRECTED */
+	}
+
+	spin_lock_irqsave(&dev->req_lock, flags);
+	/*
+	 * this freelist can be empty if an interrupt triggered disconnect()
+	 * and reconfigured the gadget (shutting down this queue) after the
+	 * network stack decided to xmit but before we got the spinlock.
+	 */
+	if (list_empty(&dev->tx_reqs)) {
+		spin_unlock_irqrestore(&dev->req_lock, flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	req = container_of(dev->tx_reqs.next, struct usb_request, list);
+	list_del(&req->list);
+
+	/* temporarily stop TX queue when the freelist empties */
+	if (list_empty(&dev->tx_reqs))
+		netif_stop_queue(net);
+	spin_unlock_irqrestore(&dev->req_lock, flags);
+
+	/* no buffer copies needed, unless the network stack did it
+	 * or the hardware can't use skb buffers.
+	 * or there's not enough space for extra headers we need
+	 */
+	if (dev->wrap) {
+		unsigned long	flags;
+
+		spin_lock_irqsave(&dev->lock, flags);
+		if (dev->port_usb)
+			skb = dev->wrap(dev->port_usb, skb);
+		spin_unlock_irqrestore(&dev->lock, flags);
+		if (!skb)
+			goto drop;
+
+		length = skb->len;
+	}
+	req->buf = skb->data;
+	req->context = skb;
+	req->complete = tx_complete;
+
+	/* NCM requires no zlp if transfer is dwNtbInMaxSize */
+	if (dev->port_usb->is_fixed &&
+	    length == dev->port_usb->fixed_in_len &&
+	    (length % in->maxpacket) == 0)
+		req->zero = 0;
+	else
+		req->zero = 1;
+
+	/* use zlp framing on tx for strict CDC-Ether conformance,
+	 * though any robust network rx path ignores extra padding.
+	 * and some hardware doesn't like to write zlps.
+	 */
+	if (req->zero && !dev->zlp && (length % in->maxpacket) == 0)
+		length++;
+
+	req->length = length;
+
+	/* throttle high/super speed IRQ rate back slightly */
+	if (gadget_is_dualspeed(dev->gadget))
+		req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH ||
+				     dev->gadget->speed == USB_SPEED_SUPER)
+			? ((atomic_read(&dev->tx_qlen) % qmult) != 0)
+			: 0;
+
+	retval = usb_ep_queue(in, req, GFP_ATOMIC);
+	switch (retval) {
+	default:
+		DBG(dev, "tx queue err %d\n", retval);
+		break;
+	case 0:
+		net->trans_start = jiffies;
+		atomic_inc(&dev->tx_qlen);
+	}
+
+	if (retval) {
+		dev_kfree_skb_any(skb);
+drop:
+		dev->net->stats.tx_dropped++;
+		spin_lock_irqsave(&dev->req_lock, flags);
+		if (list_empty(&dev->tx_reqs))
+			netif_start_queue(net);
+		list_add(&req->list, &dev->tx_reqs);
+		spin_unlock_irqrestore(&dev->req_lock, flags);
+	}
+	return NETDEV_TX_OK;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void eth_start(struct eth_dev *dev, gfp_t gfp_flags)
+{
+	DBG(dev, "%s\n", __func__);
+
+	/* fill the rx queue */
+	rx_fill(dev, gfp_flags);
+
+	/* and open the tx floodgates */
+	atomic_set(&dev->tx_qlen, 0);
+	netif_wake_queue(dev->net);
+}
+
+static int eth_open(struct net_device *net)
+{
+	struct eth_dev	*dev = netdev_priv(net);
+	struct gether	*link;
+
+	DBG(dev, "%s\n", __func__);
+	if (netif_carrier_ok(dev->net))
+		eth_start(dev, GFP_KERNEL);
+
+	spin_lock_irq(&dev->lock);
+	link = dev->port_usb;
+	if (link && link->open)
+		link->open(link);
+	spin_unlock_irq(&dev->lock);
+
+	return 0;
+}
+
+static int eth_stop(struct net_device *net)
+{
+	struct eth_dev	*dev = netdev_priv(net);
+	unsigned long	flags;
+
+	VDBG(dev, "%s\n", __func__);
+	netif_stop_queue(net);
+
+	DBG(dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld\n",
+		dev->net->stats.rx_packets, dev->net->stats.tx_packets,
+		dev->net->stats.rx_errors, dev->net->stats.tx_errors
+		);
+
+	/* ensure there are no more active requests */
+	spin_lock_irqsave(&dev->lock, flags);
+	if (dev->port_usb) {
+		struct gether	*link = dev->port_usb;
+
+		if (link->close)
+			link->close(link);
+
+		/* NOTE:  we have no abort-queue primitive we could use
+		 * to cancel all pending I/O.  Instead, we disable then
+		 * reenable the endpoints ... this idiom may leave toggle
+		 * wrong, but that's a self-correcting error.
+		 *
+		 * REVISIT:  we *COULD* just let the transfers complete at
+		 * their own pace; the network stack can handle old packets.
+		 * For the moment we leave this here, since it works.
+		 */
+		usb_ep_disable(link->in_ep);
+		usb_ep_disable(link->out_ep);
+		if (netif_carrier_ok(net)) {
+			DBG(dev, "host still using in/out endpoints\n");
+			usb_ep_enable(link->in_ep);
+			usb_ep_enable(link->out_ep);
+		}
+	}
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* initial value, changed by "ifconfig usb0 hw ether xx:xx:xx:xx:xx:xx" */
+static char *dev_addr;
+module_param(dev_addr, charp, S_IRUGO);
+MODULE_PARM_DESC(dev_addr, "Device Ethernet Address");
+
+/* this address is invisible to ifconfig */
+static char *host_addr;
+module_param(host_addr, charp, S_IRUGO);
+MODULE_PARM_DESC(host_addr, "Host Ethernet Address");
+
+static int get_ether_addr(const char *str, u8 *dev_addr)
+{
+	if (str) {
+		unsigned	i;
+
+		for (i = 0; i < 6; i++) {
+			unsigned char num;
+
+			if ((*str == '.') || (*str == ':'))
+				str++;
+			num = hex_to_bin(*str++) << 4;
+			num |= hex_to_bin(*str++);
+			dev_addr [i] = num;
+		}
+		if (is_valid_ether_addr(dev_addr))
+			return 0;
+	}
+	eth_random_addr(dev_addr);
+	return 1;
+}
+
+static struct eth_dev *the_dev;
+
+static const struct net_device_ops eth_netdev_ops = {
+	.ndo_open		= eth_open,
+	.ndo_stop		= eth_stop,
+	.ndo_start_xmit		= eth_start_xmit,
+	.ndo_change_mtu		= ueth_change_mtu,
+	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
+static struct device_type gadget_type = {
+	.name	= "gadget",
+};
+
+/**
+ * gether_setup_name - initialize one ethernet-over-usb link
+ * @g: gadget to associated with these links
+ * @ethaddr: NULL, or a buffer in which the ethernet address of the
+ *	host side of the link is recorded
+ * @netname: name for network device (for example, "usb")
+ * Context: may sleep
+ *
+ * This sets up the single network link that may be exported by a
+ * gadget driver using this framework.  The link layer addresses are
+ * set up using module parameters.
+ *
+ * Returns negative errno, or zero on success
+ */
+int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
+		const char *netname)
+{
+	struct eth_dev		*dev;
+	struct net_device	*net;
+	int			status;
+
+	if (the_dev)
+		return -EBUSY;
+
+	net = alloc_etherdev(sizeof *dev);
+	if (!net)
+		return -ENOMEM;
+
+	dev = netdev_priv(net);
+	spin_lock_init(&dev->lock);
+	spin_lock_init(&dev->req_lock);
+	INIT_WORK(&dev->work, eth_work);
+	INIT_LIST_HEAD(&dev->tx_reqs);
+	INIT_LIST_HEAD(&dev->rx_reqs);
+
+	skb_queue_head_init(&dev->rx_frames);
+
+	/* network device setup */
+	dev->net = net;
+	snprintf(net->name, sizeof(net->name), "%s%%d", netname);
+
+	if (get_ether_addr(dev_addr, net->dev_addr))
+		dev_warn(&g->dev,
+			"using random %s ethernet address\n", "self");
+	if (get_ether_addr(host_addr, dev->host_mac))
+		dev_warn(&g->dev,
+			"using random %s ethernet address\n", "host");
+
+	if (ethaddr)
+		memcpy(ethaddr, dev->host_mac, ETH_ALEN);
+
+	net->netdev_ops = &eth_netdev_ops;
+
+	SET_ETHTOOL_OPS(net, &ops);
+
+	dev->gadget = g;
+	SET_NETDEV_DEV(net, &g->dev);
+	SET_NETDEV_DEVTYPE(net, &gadget_type);
+
+	status = register_netdev(net);
+	if (status < 0) {
+		dev_dbg(&g->dev, "register_netdev failed, %d\n", status);
+		free_netdev(net);
+	} else {
+		INFO(dev, "MAC %pM\n", net->dev_addr);
+		INFO(dev, "HOST MAC %pM\n", dev->host_mac);
+
+		the_dev = dev;
+
+		/* two kinds of host-initiated state changes:
+		 *  - iff DATA transfer is active, carrier is "on"
+		 *  - tx queueing enabled if open *and* carrier is "on"
+		 */
+		netif_carrier_off(net);
+	}
+
+	return status;
+}
+
+/**
+ * gether_cleanup - remove Ethernet-over-USB device
+ * Context: may sleep
+ *
+ * This is called to free all resources allocated by @gether_setup().
+ */
+void gether_cleanup(void)
+{
+	if (!the_dev)
+		return;
+
+	unregister_netdev(the_dev->net);
+	flush_work(&the_dev->work);
+	free_netdev(the_dev->net);
+
+	the_dev = NULL;
+}
+
+
+/**
+ * gether_connect - notify network layer that USB link is active
+ * @link: the USB link, set up with endpoints, descriptors matching
+ *	current device speed, and any framing wrapper(s) set up.
+ * Context: irqs blocked
+ *
+ * This is called to activate endpoints and let the network layer know
+ * the connection is active ("carrier detect").  It may cause the I/O
+ * queues to open and start letting network packets flow, but will in
+ * any case activate the endpoints so that they respond properly to the
+ * USB host.
+ *
+ * Verify net_device pointer returned using IS_ERR().  If it doesn't
+ * indicate some error code (negative errno), ep->driver_data values
+ * have been overwritten.
+ */
+struct net_device *gether_connect(struct gether *link)
+{
+	struct eth_dev		*dev = the_dev;
+	int			result = 0;
+
+	if (!dev)
+		return ERR_PTR(-EINVAL);
+
+	link->in_ep->driver_data = dev;
+	result = usb_ep_enable(link->in_ep);
+	if (result != 0) {
+		DBG(dev, "enable %s --> %d\n",
+			link->in_ep->name, result);
+		goto fail0;
+	}
+
+	link->out_ep->driver_data = dev;
+	result = usb_ep_enable(link->out_ep);
+	if (result != 0) {
+		DBG(dev, "enable %s --> %d\n",
+			link->out_ep->name, result);
+		goto fail1;
+	}
+
+	if (result == 0)
+		result = alloc_requests(dev, link, qlen(dev->gadget));
+
+	if (result == 0) {
+		dev->zlp = link->is_zlp_ok;
+		DBG(dev, "qlen %d\n", qlen(dev->gadget));
+
+		dev->header_len = link->header_len;
+		dev->unwrap = link->unwrap;
+		dev->wrap = link->wrap;
+
+		spin_lock(&dev->lock);
+		dev->port_usb = link;
+		link->ioport = dev;
+		if (netif_running(dev->net)) {
+			if (link->open)
+				link->open(link);
+		} else {
+			if (link->close)
+				link->close(link);
+		}
+		spin_unlock(&dev->lock);
+
+		netif_carrier_on(dev->net);
+		if (netif_running(dev->net))
+			eth_start(dev, GFP_ATOMIC);
+
+	/* on error, disable any endpoints  */
+	} else {
+		(void) usb_ep_disable(link->out_ep);
+fail1:
+		(void) usb_ep_disable(link->in_ep);
+	}
+fail0:
+	/* caller is responsible for cleanup on error */
+	if (result < 0)
+		return ERR_PTR(result);
+	return dev->net;
+}
+
+/**
+ * gether_disconnect - notify network layer that USB link is inactive
+ * @link: the USB link, on which gether_connect() was called
+ * Context: irqs blocked
+ *
+ * This is called to deactivate endpoints and let the network layer know
+ * the connection went inactive ("no carrier").
+ *
+ * On return, the state is as if gether_connect() had never been called.
+ * The endpoints are inactive, and accordingly without active USB I/O.
+ * Pointers to endpoint descriptors and endpoint private data are nulled.
+ */
+void gether_disconnect(struct gether *link)
+{
+	struct eth_dev		*dev = link->ioport;
+	struct usb_request	*req;
+
+	WARN_ON(!dev);
+	if (!dev)
+		return;
+
+	DBG(dev, "%s\n", __func__);
+
+	netif_stop_queue(dev->net);
+	netif_carrier_off(dev->net);
+
+	/* disable endpoints, forcing (synchronous) completion
+	 * of all pending i/o.  then free the request objects
+	 * and forget about the endpoints.
+	 */
+	usb_ep_disable(link->in_ep);
+	spin_lock(&dev->req_lock);
+	while (!list_empty(&dev->tx_reqs)) {
+		req = container_of(dev->tx_reqs.next,
+					struct usb_request, list);
+		list_del(&req->list);
+
+		spin_unlock(&dev->req_lock);
+		usb_ep_free_request(link->in_ep, req);
+		spin_lock(&dev->req_lock);
+	}
+	spin_unlock(&dev->req_lock);
+	link->in_ep->driver_data = NULL;
+	link->in_ep->desc = NULL;
+
+	usb_ep_disable(link->out_ep);
+	spin_lock(&dev->req_lock);
+	while (!list_empty(&dev->rx_reqs)) {
+		req = container_of(dev->rx_reqs.next,
+					struct usb_request, list);
+		list_del(&req->list);
+
+		spin_unlock(&dev->req_lock);
+		usb_ep_free_request(link->out_ep, req);
+		spin_lock(&dev->req_lock);
+	}
+	spin_unlock(&dev->req_lock);
+	link->out_ep->driver_data = NULL;
+	link->out_ep->desc = NULL;
+
+	/* finish forgetting about this USB link episode */
+	dev->header_len = 0;
+	dev->unwrap = NULL;
+	dev->wrap = NULL;
+
+	spin_lock(&dev->lock);
+	dev->port_usb = NULL;
+	link->ioport = NULL;
+	spin_unlock(&dev->lock);
+}
diff --git a/drivers/staging/ccg/u_ether.h b/drivers/staging/ccg/u_ether.h
new file mode 100644
index 00000000000..6f4a1623d85
--- /dev/null
+++ b/drivers/staging/ccg/u_ether.h
@@ -0,0 +1,154 @@
+/*
+ * u_ether.h -- interface to USB gadget "ethernet link" utilities
+ *
+ * Copyright (C) 2003-2005,2008 David Brownell
+ * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __U_ETHER_H
+#define __U_ETHER_H
+
+#include <linux/err.h>
+#include <linux/if_ether.h>
+#include <linux/usb/composite.h>
+#include <linux/usb/cdc.h>
+
+#include "gadget_chips.h"
+
+
+/*
+ * This represents the USB side of an "ethernet" link, managed by a USB
+ * function which provides control and (maybe) framing.  Two functions
+ * in different configurations could share the same ethernet link/netdev,
+ * using different host interaction models.
+ *
+ * There is a current limitation that only one instance of this link may
+ * be present in any given configuration.  When that's a problem, network
+ * layer facilities can be used to package multiple logical links on this
+ * single "physical" one.
+ */
+struct gether {
+	struct usb_function		func;
+
+	/* updated by gether_{connect,disconnect} */
+	struct eth_dev			*ioport;
+
+	/* endpoints handle full and/or high speeds */
+	struct usb_ep			*in_ep;
+	struct usb_ep			*out_ep;
+
+	bool				is_zlp_ok;
+
+	u16				cdc_filter;
+
+	/* hooks for added framing, as needed for RNDIS and EEM. */
+	u32				header_len;
+	/* NCM requires fixed size bundles */
+	bool				is_fixed;
+	u32				fixed_out_len;
+	u32				fixed_in_len;
+	struct sk_buff			*(*wrap)(struct gether *port,
+						struct sk_buff *skb);
+	int				(*unwrap)(struct gether *port,
+						struct sk_buff *skb,
+						struct sk_buff_head *list);
+
+	/* called on network open/close */
+	void				(*open)(struct gether *);
+	void				(*close)(struct gether *);
+};
+
+#define	DEFAULT_FILTER	(USB_CDC_PACKET_TYPE_BROADCAST \
+			|USB_CDC_PACKET_TYPE_ALL_MULTICAST \
+			|USB_CDC_PACKET_TYPE_PROMISCUOUS \
+			|USB_CDC_PACKET_TYPE_DIRECTED)
+
+/* variant of gether_setup that allows customizing network device name */
+int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
+		const char *netname);
+
+/* netdev setup/teardown as directed by the gadget driver */
+/* gether_setup - initialize one ethernet-over-usb link
+ * @g: gadget to associated with these links
+ * @ethaddr: NULL, or a buffer in which the ethernet address of the
+ *	host side of the link is recorded
+ * Context: may sleep
+ *
+ * This sets up the single network link that may be exported by a
+ * gadget driver using this framework.  The link layer addresses are
+ * set up using module parameters.
+ *
+ * Returns negative errno, or zero on success
+ */
+static inline int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN])
+{
+	return gether_setup_name(g, ethaddr, "usb");
+}
+
+void gether_cleanup(void);
+
+/* connect/disconnect is handled by individual functions */
+struct net_device *gether_connect(struct gether *);
+void gether_disconnect(struct gether *);
+
+/* Some controllers can't support CDC Ethernet (ECM) ... */
+static inline bool can_support_ecm(struct usb_gadget *gadget)
+{
+	if (!gadget_supports_altsettings(gadget))
+		return false;
+
+	/* Everything else is *presumably* fine ... but this is a bit
+	 * chancy, so be **CERTAIN** there are no hardware issues with
+	 * your controller.  Add it above if it can't handle CDC.
+	 */
+	return true;
+}
+
+/* each configuration may bind one instance of an ethernet link */
+int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
+int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
+int ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
+int eem_bind_config(struct usb_configuration *c);
+
+#ifdef USB_ETH_RNDIS
+
+int rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
+				u32 vendorID, const char *manufacturer);
+
+#else
+
+static inline int
+rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
+				u32 vendorID, const char *manufacturer)
+{
+	return 0;
+}
+
+#endif
+
+/**
+ * rndis_bind_config - add RNDIS network link to a configuration
+ * @c: the configuration to support the network link
+ * @ethaddr: a buffer in which the ethernet address of the host side
+ *	side of the link was recorded
+ * Context: single threaded during gadget setup
+ *
+ * Returns zero on success, else negative errno.
+ *
+ * Caller must have called @gether_setup().  Caller is also responsible
+ * for calling @gether_cleanup() before module unload.
+ */
+static inline int rndis_bind_config(struct usb_configuration *c,
+				    u8 ethaddr[ETH_ALEN])
+{
+	return rndis_bind_config_vendor(c, ethaddr, 0, NULL);
+}
+
+
+#endif /* __U_ETHER_H */
diff --git a/drivers/staging/ccg/u_serial.c b/drivers/staging/ccg/u_serial.c
new file mode 100644
index 00000000000..5b3f5fffea9
--- /dev/null
+++ b/drivers/staging/ccg/u_serial.c
@@ -0,0 +1,1341 @@
+/*
+ * u_serial.c - utilities for USB gadget "serial port"/TTY support
+ *
+ * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
+ * Copyright (C) 2008 David Brownell
+ * Copyright (C) 2008 by Nokia Corporation
+ *
+ * This code also borrows from usbserial.c, which is
+ * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2000 Peter Berger (pberger@brimson.com)
+ * Copyright (C) 2000 Al Borchers (alborchers@steinerpoint.com)
+ *
+ * This software is distributed under the terms of the GNU General
+ * Public License ("GPL") as published by the Free Software Foundation,
+ * either version 2 of that License or (at your option) any later version.
+ */
+
+/* #define VERBOSE_DEBUG */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+
+#include "u_serial.h"
+
+
+/*
+ * This component encapsulates the TTY layer glue needed to provide basic
+ * "serial port" functionality through the USB gadget stack.  Each such
+ * port is exposed through a /dev/ttyGS* node.
+ *
+ * After initialization (gserial_setup), these TTY port devices stay
+ * available until they are removed (gserial_cleanup).  Each one may be
+ * connected to a USB function (gserial_connect), or disconnected (with
+ * gserial_disconnect) when the USB host issues a config change event.
+ * Data can only flow when the port is connected to the host.
+ *
+ * A given TTY port can be made available in multiple configurations.
+ * For example, each one might expose a ttyGS0 node which provides a
+ * login application.  In one case that might use CDC ACM interface 0,
+ * while another configuration might use interface 3 for that.  The
+ * work to handle that (including descriptor management) is not part
+ * of this component.
+ *
+ * Configurations may expose more than one TTY port.  For example, if
+ * ttyGS0 provides login service, then ttyGS1 might provide dialer access
+ * for a telephone or fax link.  And ttyGS2 might be something that just
+ * needs a simple byte stream interface for some messaging protocol that
+ * is managed in userspace ... OBEX, PTP, and MTP have been mentioned.
+ */
+
+#define PREFIX	"ttyGS"
+
+/*
+ * gserial is the lifecycle interface, used by USB functions
+ * gs_port is the I/O nexus, used by the tty driver
+ * tty_struct links to the tty/filesystem framework
+ *
+ * gserial <---> gs_port ... links will be null when the USB link is
+ * inactive; managed by gserial_{connect,disconnect}().  each gserial
+ * instance can wrap its own USB control protocol.
+ *	gserial->ioport == usb_ep->driver_data ... gs_port
+ *	gs_port->port_usb ... gserial
+ *
+ * gs_port <---> tty_struct ... links will be null when the TTY file
+ * isn't opened; managed by gs_open()/gs_close()
+ *	gserial->port_tty ... tty_struct
+ *	tty_struct->driver_data ... gserial
+ */
+
+/* RX and TX queues can buffer QUEUE_SIZE packets before they hit the
+ * next layer of buffering.  For TX that's a circular buffer; for RX
+ * consider it a NOP.  A third layer is provided by the TTY code.
+ */
+#define QUEUE_SIZE		16
+#define WRITE_BUF_SIZE		8192		/* TX only */
+
+/* circular buffer */
+struct gs_buf {
+	unsigned		buf_size;
+	char			*buf_buf;
+	char			*buf_get;
+	char			*buf_put;
+};
+
+/*
+ * The port structure holds info for each port, one for each minor number
+ * (and thus for each /dev/ node).
+ */
+struct gs_port {
+	struct tty_port		port;
+	spinlock_t		port_lock;	/* guard port_* access */
+
+	struct gserial		*port_usb;
+
+	bool			openclose;	/* open/close in progress */
+	u8			port_num;
+
+	struct list_head	read_pool;
+	int read_started;
+	int read_allocated;
+	struct list_head	read_queue;
+	unsigned		n_read;
+	struct tasklet_struct	push;
+
+	struct list_head	write_pool;
+	int write_started;
+	int write_allocated;
+	struct gs_buf		port_write_buf;
+	wait_queue_head_t	drain_wait;	/* wait while writes drain */
+
+	/* REVISIT this state ... */
+	struct usb_cdc_line_coding port_line_coding;	/* 8-N-1 etc */
+};
+
+/* increase N_PORTS if you need more */
+#define N_PORTS		4
+static struct portmaster {
+	struct mutex	lock;			/* protect open/close */
+	struct gs_port	*port;
+} ports[N_PORTS];
+static unsigned	n_ports;
+
+#define GS_CLOSE_TIMEOUT		15		/* seconds */
+
+
+
+#ifdef VERBOSE_DEBUG
+#define pr_vdebug(fmt, arg...) \
+	pr_debug(fmt, ##arg)
+#else
+#define pr_vdebug(fmt, arg...) \
+	({ if (0) pr_debug(fmt, ##arg); })
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+/* Circular Buffer */
+
+/*
+ * gs_buf_alloc
+ *
+ * Allocate a circular buffer and all associated memory.
+ */
+static int gs_buf_alloc(struct gs_buf *gb, unsigned size)
+{
+	gb->buf_buf = kmalloc(size, GFP_KERNEL);
+	if (gb->buf_buf == NULL)
+		return -ENOMEM;
+
+	gb->buf_size = size;
+	gb->buf_put = gb->buf_buf;
+	gb->buf_get = gb->buf_buf;
+
+	return 0;
+}
+
+/*
+ * gs_buf_free
+ *
+ * Free the buffer and all associated memory.
+ */
+static void gs_buf_free(struct gs_buf *gb)
+{
+	kfree(gb->buf_buf);
+	gb->buf_buf = NULL;
+}
+
+/*
+ * gs_buf_clear
+ *
+ * Clear out all data in the circular buffer.
+ */
+static void gs_buf_clear(struct gs_buf *gb)
+{
+	gb->buf_get = gb->buf_put;
+	/* equivalent to a get of all data available */
+}
+
+/*
+ * gs_buf_data_avail
+ *
+ * Return the number of bytes of data written into the circular
+ * buffer.
+ */
+static unsigned gs_buf_data_avail(struct gs_buf *gb)
+{
+	return (gb->buf_size + gb->buf_put - gb->buf_get) % gb->buf_size;
+}
+
+/*
+ * gs_buf_space_avail
+ *
+ * Return the number of bytes of space available in the circular
+ * buffer.
+ */
+static unsigned gs_buf_space_avail(struct gs_buf *gb)
+{
+	return (gb->buf_size + gb->buf_get - gb->buf_put - 1) % gb->buf_size;
+}
+
+/*
+ * gs_buf_put
+ *
+ * Copy data data from a user buffer and put it into the circular buffer.
+ * Restrict to the amount of space available.
+ *
+ * Return the number of bytes copied.
+ */
+static unsigned
+gs_buf_put(struct gs_buf *gb, const char *buf, unsigned count)
+{
+	unsigned len;
+
+	len  = gs_buf_space_avail(gb);
+	if (count > len)
+		count = len;
+
+	if (count == 0)
+		return 0;
+
+	len = gb->buf_buf + gb->buf_size - gb->buf_put;
+	if (count > len) {
+		memcpy(gb->buf_put, buf, len);
+		memcpy(gb->buf_buf, buf+len, count - len);
+		gb->buf_put = gb->buf_buf + count - len;
+	} else {
+		memcpy(gb->buf_put, buf, count);
+		if (count < len)
+			gb->buf_put += count;
+		else /* count == len */
+			gb->buf_put = gb->buf_buf;
+	}
+
+	return count;
+}
+
+/*
+ * gs_buf_get
+ *
+ * Get data from the circular buffer and copy to the given buffer.
+ * Restrict to the amount of data available.
+ *
+ * Return the number of bytes copied.
+ */
+static unsigned
+gs_buf_get(struct gs_buf *gb, char *buf, unsigned count)
+{
+	unsigned len;
+
+	len = gs_buf_data_avail(gb);
+	if (count > len)
+		count = len;
+
+	if (count == 0)
+		return 0;
+
+	len = gb->buf_buf + gb->buf_size - gb->buf_get;
+	if (count > len) {
+		memcpy(buf, gb->buf_get, len);
+		memcpy(buf+len, gb->buf_buf, count - len);
+		gb->buf_get = gb->buf_buf + count - len;
+	} else {
+		memcpy(buf, gb->buf_get, count);
+		if (count < len)
+			gb->buf_get += count;
+		else /* count == len */
+			gb->buf_get = gb->buf_buf;
+	}
+
+	return count;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* I/O glue between TTY (upper) and USB function (lower) driver layers */
+
+/*
+ * gs_alloc_req
+ *
+ * Allocate a usb_request and its buffer.  Returns a pointer to the
+ * usb_request or NULL if there is an error.
+ */
+struct usb_request *
+gs_alloc_req(struct usb_ep *ep, unsigned len, gfp_t kmalloc_flags)
+{
+	struct usb_request *req;
+
+	req = usb_ep_alloc_request(ep, kmalloc_flags);
+
+	if (req != NULL) {
+		req->length = len;
+		req->buf = kmalloc(len, kmalloc_flags);
+		if (req->buf == NULL) {
+			usb_ep_free_request(ep, req);
+			return NULL;
+		}
+	}
+
+	return req;
+}
+
+/*
+ * gs_free_req
+ *
+ * Free a usb_request and its buffer.
+ */
+void gs_free_req(struct usb_ep *ep, struct usb_request *req)
+{
+	kfree(req->buf);
+	usb_ep_free_request(ep, req);
+}
+
+/*
+ * gs_send_packet
+ *
+ * If there is data to send, a packet is built in the given
+ * buffer and the size is returned.  If there is no data to
+ * send, 0 is returned.
+ *
+ * Called with port_lock held.
+ */
+static unsigned
+gs_send_packet(struct gs_port *port, char *packet, unsigned size)
+{
+	unsigned len;
+
+	len = gs_buf_data_avail(&port->port_write_buf);
+	if (len < size)
+		size = len;
+	if (size != 0)
+		size = gs_buf_get(&port->port_write_buf, packet, size);
+	return size;
+}
+
+/*
+ * gs_start_tx
+ *
+ * This function finds available write requests, calls
+ * gs_send_packet to fill these packets with data, and
+ * continues until either there are no more write requests
+ * available or no more data to send.  This function is
+ * run whenever data arrives or write requests are available.
+ *
+ * Context: caller owns port_lock; port_usb is non-null.
+ */
+static int gs_start_tx(struct gs_port *port)
+/*
+__releases(&port->port_lock)
+__acquires(&port->port_lock)
+*/
+{
+	struct list_head	*pool = &port->write_pool;
+	struct usb_ep		*in = port->port_usb->in;
+	int			status = 0;
+	bool			do_tty_wake = false;
+
+	while (!list_empty(pool)) {
+		struct usb_request	*req;
+		int			len;
+
+		if (port->write_started >= QUEUE_SIZE)
+			break;
+
+		req = list_entry(pool->next, struct usb_request, list);
+		len = gs_send_packet(port, req->buf, in->maxpacket);
+		if (len == 0) {
+			wake_up_interruptible(&port->drain_wait);
+			break;
+		}
+		do_tty_wake = true;
+
+		req->length = len;
+		list_del(&req->list);
+		req->zero = (gs_buf_data_avail(&port->port_write_buf) == 0);
+
+		pr_vdebug(PREFIX "%d: tx len=%d, 0x%02x 0x%02x 0x%02x ...\n",
+				port->port_num, len, *((u8 *)req->buf),
+				*((u8 *)req->buf+1), *((u8 *)req->buf+2));
+
+		/* Drop lock while we call out of driver; completions
+		 * could be issued while we do so.  Disconnection may
+		 * happen too; maybe immediately before we queue this!
+		 *
+		 * NOTE that we may keep sending data for a while after
+		 * the TTY closed (dev->ioport->port_tty is NULL).
+		 */
+		spin_unlock(&port->port_lock);
+		status = usb_ep_queue(in, req, GFP_ATOMIC);
+		spin_lock(&port->port_lock);
+
+		if (status) {
+			pr_debug("%s: %s %s err %d\n",
+					__func__, "queue", in->name, status);
+			list_add(&req->list, pool);
+			break;
+		}
+
+		port->write_started++;
+
+		/* abort immediately after disconnect */
+		if (!port->port_usb)
+			break;
+	}
+
+	if (do_tty_wake && port->port.tty)
+		tty_wakeup(port->port.tty);
+	return status;
+}
+
+/*
+ * Context: caller owns port_lock, and port_usb is set
+ */
+static unsigned gs_start_rx(struct gs_port *port)
+/*
+__releases(&port->port_lock)
+__acquires(&port->port_lock)
+*/
+{
+	struct list_head	*pool = &port->read_pool;
+	struct usb_ep		*out = port->port_usb->out;
+
+	while (!list_empty(pool)) {
+		struct usb_request	*req;
+		int			status;
+		struct tty_struct	*tty;
+
+		/* no more rx if closed */
+		tty = port->port.tty;
+		if (!tty)
+			break;
+
+		if (port->read_started >= QUEUE_SIZE)
+			break;
+
+		req = list_entry(pool->next, struct usb_request, list);
+		list_del(&req->list);
+		req->length = out->maxpacket;
+
+		/* drop lock while we call out; the controller driver
+		 * may need to call us back (e.g. for disconnect)
+		 */
+		spin_unlock(&port->port_lock);
+		status = usb_ep_queue(out, req, GFP_ATOMIC);
+		spin_lock(&port->port_lock);
+
+		if (status) {
+			pr_debug("%s: %s %s err %d\n",
+					__func__, "queue", out->name, status);
+			list_add(&req->list, pool);
+			break;
+		}
+		port->read_started++;
+
+		/* abort immediately after disconnect */
+		if (!port->port_usb)
+			break;
+	}
+	return port->read_started;
+}
+
+/*
+ * RX tasklet takes data out of the RX queue and hands it up to the TTY
+ * layer until it refuses to take any more data (or is throttled back).
+ * Then it issues reads for any further data.
+ *
+ * If the RX queue becomes full enough that no usb_request is queued,
+ * the OUT endpoint may begin NAKing as soon as its FIFO fills up.
+ * So QUEUE_SIZE packets plus however many the FIFO holds (usually two)
+ * can be buffered before the TTY layer's buffers (currently 64 KB).
+ */
+static void gs_rx_push(unsigned long _port)
+{
+	struct gs_port		*port = (void *)_port;
+	struct tty_struct	*tty;
+	struct list_head	*queue = &port->read_queue;
+	bool			disconnect = false;
+	bool			do_push = false;
+
+	/* hand any queued data to the tty */
+	spin_lock_irq(&port->port_lock);
+	tty = port->port.tty;
+	while (!list_empty(queue)) {
+		struct usb_request	*req;
+
+		req = list_first_entry(queue, struct usb_request, list);
+
+		/* discard data if tty was closed */
+		if (!tty)
+			goto recycle;
+
+		/* leave data queued if tty was rx throttled */
+		if (test_bit(TTY_THROTTLED, &tty->flags))
+			break;
+
+		switch (req->status) {
+		case -ESHUTDOWN:
+			disconnect = true;
+			pr_vdebug(PREFIX "%d: shutdown\n", port->port_num);
+			break;
+
+		default:
+			/* presumably a transient fault */
+			pr_warning(PREFIX "%d: unexpected RX status %d\n",
+					port->port_num, req->status);
+			/* FALLTHROUGH */
+		case 0:
+			/* normal completion */
+			break;
+		}
+
+		/* push data to (open) tty */
+		if (req->actual) {
+			char		*packet = req->buf;
+			unsigned	size = req->actual;
+			unsigned	n;
+			int		count;
+
+			/* we may have pushed part of this packet already... */
+			n = port->n_read;
+			if (n) {
+				packet += n;
+				size -= n;
+			}
+
+			count = tty_insert_flip_string(tty, packet, size);
+			if (count)
+				do_push = true;
+			if (count != size) {
+				/* stop pushing; TTY layer can't handle more */
+				port->n_read += count;
+				pr_vdebug(PREFIX "%d: rx block %d/%d\n",
+						port->port_num,
+						count, req->actual);
+				break;
+			}
+			port->n_read = 0;
+		}
+recycle:
+		list_move(&req->list, &port->read_pool);
+		port->read_started--;
+	}
+
+	/* Push from tty to ldisc; without low_latency set this is handled by
+	 * a workqueue, so we won't get callbacks and can hold port_lock
+	 */
+	if (tty && do_push)
+		tty_flip_buffer_push(tty);
+
+
+	/* We want our data queue to become empty ASAP, keeping data
+	 * in the tty and ldisc (not here).  If we couldn't push any
+	 * this time around, there may be trouble unless there's an
+	 * implicit tty_unthrottle() call on its way...
+	 *
+	 * REVISIT we should probably add a timer to keep the tasklet
+	 * from starving ... but it's not clear that case ever happens.
+	 */
+	if (!list_empty(queue) && tty) {
+		if (!test_bit(TTY_THROTTLED, &tty->flags)) {
+			if (do_push)
+				tasklet_schedule(&port->push);
+			else
+				pr_warning(PREFIX "%d: RX not scheduled?\n",
+					port->port_num);
+		}
+	}
+
+	/* If we're still connected, refill the USB RX queue. */
+	if (!disconnect && port->port_usb)
+		gs_start_rx(port);
+
+	spin_unlock_irq(&port->port_lock);
+}
+
+static void gs_read_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct gs_port	*port = ep->driver_data;
+
+	/* Queue all received data until the tty layer is ready for it. */
+	spin_lock(&port->port_lock);
+	list_add_tail(&req->list, &port->read_queue);
+	tasklet_schedule(&port->push);
+	spin_unlock(&port->port_lock);
+}
+
+static void gs_write_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct gs_port	*port = ep->driver_data;
+
+	spin_lock(&port->port_lock);
+	list_add(&req->list, &port->write_pool);
+	port->write_started--;
+
+	switch (req->status) {
+	default:
+		/* presumably a transient fault */
+		pr_warning("%s: unexpected %s status %d\n",
+				__func__, ep->name, req->status);
+		/* FALL THROUGH */
+	case 0:
+		/* normal completion */
+		gs_start_tx(port);
+		break;
+
+	case -ESHUTDOWN:
+		/* disconnect */
+		pr_vdebug("%s: %s shutdown\n", __func__, ep->name);
+		break;
+	}
+
+	spin_unlock(&port->port_lock);
+}
+
+static void gs_free_requests(struct usb_ep *ep, struct list_head *head,
+							 int *allocated)
+{
+	struct usb_request	*req;
+
+	while (!list_empty(head)) {
+		req = list_entry(head->next, struct usb_request, list);
+		list_del(&req->list);
+		gs_free_req(ep, req);
+		if (allocated)
+			(*allocated)--;
+	}
+}
+
+static int gs_alloc_requests(struct usb_ep *ep, struct list_head *head,
+		void (*fn)(struct usb_ep *, struct usb_request *),
+		int *allocated)
+{
+	int			i;
+	struct usb_request	*req;
+	int n = allocated ? QUEUE_SIZE - *allocated : QUEUE_SIZE;
+
+	/* Pre-allocate up to QUEUE_SIZE transfers, but if we can't
+	 * do quite that many this time, don't fail ... we just won't
+	 * be as speedy as we might otherwise be.
+	 */
+	for (i = 0; i < n; i++) {
+		req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC);
+		if (!req)
+			return list_empty(head) ? -ENOMEM : 0;
+		req->complete = fn;
+		list_add_tail(&req->list, head);
+		if (allocated)
+			(*allocated)++;
+	}
+	return 0;
+}
+
+/**
+ * gs_start_io - start USB I/O streams
+ * @dev: encapsulates endpoints to use
+ * Context: holding port_lock; port_tty and port_usb are non-null
+ *
+ * We only start I/O when something is connected to both sides of
+ * this port.  If nothing is listening on the host side, we may
+ * be pointlessly filling up our TX buffers and FIFO.
+ */
+static int gs_start_io(struct gs_port *port)
+{
+	struct list_head	*head = &port->read_pool;
+	struct usb_ep		*ep = port->port_usb->out;
+	int			status;
+	unsigned		started;
+
+	/* Allocate RX and TX I/O buffers.  We can't easily do this much
+	 * earlier (with GFP_KERNEL) because the requests are coupled to
+	 * endpoints, as are the packet sizes we'll be using.  Different
+	 * configurations may use different endpoints with a given port;
+	 * and high speed vs full speed changes packet sizes too.
+	 */
+	status = gs_alloc_requests(ep, head, gs_read_complete,
+		&port->read_allocated);
+	if (status)
+		return status;
+
+	status = gs_alloc_requests(port->port_usb->in, &port->write_pool,
+			gs_write_complete, &port->write_allocated);
+	if (status) {
+		gs_free_requests(ep, head, &port->read_allocated);
+		return status;
+	}
+
+	/* queue read requests */
+	port->n_read = 0;
+	started = gs_start_rx(port);
+
+	/* unblock any pending writes into our circular buffer */
+	if (started) {
+		tty_wakeup(port->port.tty);
+	} else {
+		gs_free_requests(ep, head, &port->read_allocated);
+		gs_free_requests(port->port_usb->in, &port->write_pool,
+			&port->write_allocated);
+		status = -EIO;
+	}
+
+	return status;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* TTY Driver */
+
+/*
+ * gs_open sets up the link between a gs_port and its associated TTY.
+ * That link is broken *only* by TTY close(), and all driver methods
+ * know that.
+ */
+static int gs_open(struct tty_struct *tty, struct file *file)
+{
+	int		port_num = tty->index;
+	struct gs_port	*port;
+	int		status;
+
+	do {
+		mutex_lock(&ports[port_num].lock);
+		port = ports[port_num].port;
+		if (!port)
+			status = -ENODEV;
+		else {
+			spin_lock_irq(&port->port_lock);
+
+			/* already open?  Great. */
+			if (port->port.count) {
+				status = 0;
+				port->port.count++;
+
+			/* currently opening/closing? wait ... */
+			} else if (port->openclose) {
+				status = -EBUSY;
+
+			/* ... else we do the work */
+			} else {
+				status = -EAGAIN;
+				port->openclose = true;
+			}
+			spin_unlock_irq(&port->port_lock);
+		}
+		mutex_unlock(&ports[port_num].lock);
+
+		switch (status) {
+		default:
+			/* fully handled */
+			return status;
+		case -EAGAIN:
+			/* must do the work */
+			break;
+		case -EBUSY:
+			/* wait for EAGAIN task to finish */
+			msleep(1);
+			/* REVISIT could have a waitchannel here, if
+			 * concurrent open performance is important
+			 */
+			break;
+		}
+	} while (status != -EAGAIN);
+
+	/* Do the "real open" */
+	spin_lock_irq(&port->port_lock);
+
+	/* allocate circular buffer on first open */
+	if (port->port_write_buf.buf_buf == NULL) {
+
+		spin_unlock_irq(&port->port_lock);
+		status = gs_buf_alloc(&port->port_write_buf, WRITE_BUF_SIZE);
+		spin_lock_irq(&port->port_lock);
+
+		if (status) {
+			pr_debug("gs_open: ttyGS%d (%p,%p) no buffer\n",
+				port->port_num, tty, file);
+			port->openclose = false;
+			goto exit_unlock_port;
+		}
+	}
+
+	/* REVISIT if REMOVED (ports[].port NULL), abort the open
+	 * to let rmmod work faster (but this way isn't wrong).
+	 */
+
+	/* REVISIT maybe wait for "carrier detect" */
+
+	tty->driver_data = port;
+	port->port.tty = tty;
+
+	port->port.count = 1;
+	port->openclose = false;
+
+	/* if connected, start the I/O stream */
+	if (port->port_usb) {
+		struct gserial	*gser = port->port_usb;
+
+		pr_debug("gs_open: start ttyGS%d\n", port->port_num);
+		gs_start_io(port);
+
+		if (gser->connect)
+			gser->connect(gser);
+	}
+
+	pr_debug("gs_open: ttyGS%d (%p,%p)\n", port->port_num, tty, file);
+
+	status = 0;
+
+exit_unlock_port:
+	spin_unlock_irq(&port->port_lock);
+	return status;
+}
+
+static int gs_writes_finished(struct gs_port *p)
+{
+	int cond;
+
+	/* return true on disconnect or empty buffer */
+	spin_lock_irq(&p->port_lock);
+	cond = (p->port_usb == NULL) || !gs_buf_data_avail(&p->port_write_buf);
+	spin_unlock_irq(&p->port_lock);
+
+	return cond;
+}
+
+static void gs_close(struct tty_struct *tty, struct file *file)
+{
+	struct gs_port *port = tty->driver_data;
+	struct gserial	*gser;
+
+	spin_lock_irq(&port->port_lock);
+
+	if (port->port.count != 1) {
+		if (port->port.count == 0)
+			WARN_ON(1);
+		else
+			--port->port.count;
+		goto exit;
+	}
+
+	pr_debug("gs_close: ttyGS%d (%p,%p) ...\n", port->port_num, tty, file);
+
+	/* mark port as closing but in use; we can drop port lock
+	 * and sleep if necessary
+	 */
+	port->openclose = true;
+	port->port.count = 0;
+
+	gser = port->port_usb;
+	if (gser && gser->disconnect)
+		gser->disconnect(gser);
+
+	/* wait for circular write buffer to drain, disconnect, or at
+	 * most GS_CLOSE_TIMEOUT seconds; then discard the rest
+	 */
+	if (gs_buf_data_avail(&port->port_write_buf) > 0 && gser) {
+		spin_unlock_irq(&port->port_lock);
+		wait_event_interruptible_timeout(port->drain_wait,
+					gs_writes_finished(port),
+					GS_CLOSE_TIMEOUT * HZ);
+		spin_lock_irq(&port->port_lock);
+		gser = port->port_usb;
+	}
+
+	/* Iff we're disconnected, there can be no I/O in flight so it's
+	 * ok to free the circular buffer; else just scrub it.  And don't
+	 * let the push tasklet fire again until we're re-opened.
+	 */
+	if (gser == NULL)
+		gs_buf_free(&port->port_write_buf);
+	else
+		gs_buf_clear(&port->port_write_buf);
+
+	tty->driver_data = NULL;
+	port->port.tty = NULL;
+
+	port->openclose = false;
+
+	pr_debug("gs_close: ttyGS%d (%p,%p) done!\n",
+			port->port_num, tty, file);
+
+	wake_up_interruptible(&port->port.close_wait);
+exit:
+	spin_unlock_irq(&port->port_lock);
+}
+
+static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count)
+{
+	struct gs_port	*port = tty->driver_data;
+	unsigned long	flags;
+	int		status;
+
+	pr_vdebug("gs_write: ttyGS%d (%p) writing %d bytes\n",
+			port->port_num, tty, count);
+
+	spin_lock_irqsave(&port->port_lock, flags);
+	if (count)
+		count = gs_buf_put(&port->port_write_buf, buf, count);
+	/* treat count == 0 as flush_chars() */
+	if (port->port_usb)
+		status = gs_start_tx(port);
+	spin_unlock_irqrestore(&port->port_lock, flags);
+
+	return count;
+}
+
+static int gs_put_char(struct tty_struct *tty, unsigned char ch)
+{
+	struct gs_port	*port = tty->driver_data;
+	unsigned long	flags;
+	int		status;
+
+	pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %pf\n",
+		port->port_num, tty, ch, __builtin_return_address(0));
+
+	spin_lock_irqsave(&port->port_lock, flags);
+	status = gs_buf_put(&port->port_write_buf, &ch, 1);
+	spin_unlock_irqrestore(&port->port_lock, flags);
+
+	return status;
+}
+
+static void gs_flush_chars(struct tty_struct *tty)
+{
+	struct gs_port	*port = tty->driver_data;
+	unsigned long	flags;
+
+	pr_vdebug("gs_flush_chars: (%d,%p)\n", port->port_num, tty);
+
+	spin_lock_irqsave(&port->port_lock, flags);
+	if (port->port_usb)
+		gs_start_tx(port);
+	spin_unlock_irqrestore(&port->port_lock, flags);
+}
+
+static int gs_write_room(struct tty_struct *tty)
+{
+	struct gs_port	*port = tty->driver_data;
+	unsigned long	flags;
+	int		room = 0;
+
+	spin_lock_irqsave(&port->port_lock, flags);
+	if (port->port_usb)
+		room = gs_buf_space_avail(&port->port_write_buf);
+	spin_unlock_irqrestore(&port->port_lock, flags);
+
+	pr_vdebug("gs_write_room: (%d,%p) room=%d\n",
+		port->port_num, tty, room);
+
+	return room;
+}
+
+static int gs_chars_in_buffer(struct tty_struct *tty)
+{
+	struct gs_port	*port = tty->driver_data;
+	unsigned long	flags;
+	int		chars = 0;
+
+	spin_lock_irqsave(&port->port_lock, flags);
+	chars = gs_buf_data_avail(&port->port_write_buf);
+	spin_unlock_irqrestore(&port->port_lock, flags);
+
+	pr_vdebug("gs_chars_in_buffer: (%d,%p) chars=%d\n",
+		port->port_num, tty, chars);
+
+	return chars;
+}
+
+/* undo side effects of setting TTY_THROTTLED */
+static void gs_unthrottle(struct tty_struct *tty)
+{
+	struct gs_port		*port = tty->driver_data;
+	unsigned long		flags;
+
+	spin_lock_irqsave(&port->port_lock, flags);
+	if (port->port_usb) {
+		/* Kickstart read queue processing.  We don't do xon/xoff,
+		 * rts/cts, or other handshaking with the host, but if the
+		 * read queue backs up enough we'll be NAKing OUT packets.
+		 */
+		tasklet_schedule(&port->push);
+		pr_vdebug(PREFIX "%d: unthrottle\n", port->port_num);
+	}
+	spin_unlock_irqrestore(&port->port_lock, flags);
+}
+
+static int gs_break_ctl(struct tty_struct *tty, int duration)
+{
+	struct gs_port	*port = tty->driver_data;
+	int		status = 0;
+	struct gserial	*gser;
+
+	pr_vdebug("gs_break_ctl: ttyGS%d, send break (%d) \n",
+			port->port_num, duration);
+
+	spin_lock_irq(&port->port_lock);
+	gser = port->port_usb;
+	if (gser && gser->send_break)
+		status = gser->send_break(gser, duration);
+	spin_unlock_irq(&port->port_lock);
+
+	return status;
+}
+
+static const struct tty_operations gs_tty_ops = {
+	.open =			gs_open,
+	.close =		gs_close,
+	.write =		gs_write,
+	.put_char =		gs_put_char,
+	.flush_chars =		gs_flush_chars,
+	.write_room =		gs_write_room,
+	.chars_in_buffer =	gs_chars_in_buffer,
+	.unthrottle =		gs_unthrottle,
+	.break_ctl =		gs_break_ctl,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static struct tty_driver *gs_tty_driver;
+
+static int
+gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding)
+{
+	struct gs_port	*port;
+
+	port = kzalloc(sizeof(struct gs_port), GFP_KERNEL);
+	if (port == NULL)
+		return -ENOMEM;
+
+	tty_port_init(&port->port);
+	spin_lock_init(&port->port_lock);
+	init_waitqueue_head(&port->drain_wait);
+
+	tasklet_init(&port->push, gs_rx_push, (unsigned long) port);
+
+	INIT_LIST_HEAD(&port->read_pool);
+	INIT_LIST_HEAD(&port->read_queue);
+	INIT_LIST_HEAD(&port->write_pool);
+
+	port->port_num = port_num;
+	port->port_line_coding = *coding;
+
+	ports[port_num].port = port;
+
+	return 0;
+}
+
+/**
+ * gserial_setup - initialize TTY driver for one or more ports
+ * @g: gadget to associate with these ports
+ * @count: how many ports to support
+ * Context: may sleep
+ *
+ * The TTY stack needs to know in advance how many devices it should
+ * plan to manage.  Use this call to set up the ports you will be
+ * exporting through USB.  Later, connect them to functions based
+ * on what configuration is activated by the USB host; and disconnect
+ * them as appropriate.
+ *
+ * An example would be a two-configuration device in which both
+ * configurations expose port 0, but through different functions.
+ * One configuration could even expose port 1 while the other
+ * one doesn't.
+ *
+ * Returns negative errno or zero.
+ */
+int gserial_setup(struct usb_gadget *g, unsigned count)
+{
+	unsigned			i;
+	struct usb_cdc_line_coding	coding;
+	int				status;
+
+	if (count == 0 || count > N_PORTS)
+		return -EINVAL;
+
+	gs_tty_driver = alloc_tty_driver(count);
+	if (!gs_tty_driver)
+		return -ENOMEM;
+
+	gs_tty_driver->driver_name = "g_serial";
+	gs_tty_driver->name = PREFIX;
+	/* uses dynamically assigned dev_t values */
+
+	gs_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
+	gs_tty_driver->subtype = SERIAL_TYPE_NORMAL;
+	gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+	gs_tty_driver->init_termios = tty_std_termios;
+
+	/* 9600-8-N-1 ... matches defaults expected by "usbser.sys" on
+	 * MS-Windows.  Otherwise, most of these flags shouldn't affect
+	 * anything unless we were to actually hook up to a serial line.
+	 */
+	gs_tty_driver->init_termios.c_cflag =
+			B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	gs_tty_driver->init_termios.c_ispeed = 9600;
+	gs_tty_driver->init_termios.c_ospeed = 9600;
+
+	coding.dwDTERate = cpu_to_le32(9600);
+	coding.bCharFormat = 8;
+	coding.bParityType = USB_CDC_NO_PARITY;
+	coding.bDataBits = USB_CDC_1_STOP_BITS;
+
+	tty_set_operations(gs_tty_driver, &gs_tty_ops);
+
+	/* make devices be openable */
+	for (i = 0; i < count; i++) {
+		mutex_init(&ports[i].lock);
+		status = gs_port_alloc(i, &coding);
+		if (status) {
+			count = i;
+			goto fail;
+		}
+	}
+	n_ports = count;
+
+	/* export the driver ... */
+	status = tty_register_driver(gs_tty_driver);
+	if (status) {
+		pr_err("%s: cannot register, err %d\n",
+				__func__, status);
+		goto fail;
+	}
+
+	/* ... and sysfs class devices, so mdev/udev make /dev/ttyGS* */
+	for (i = 0; i < count; i++) {
+		struct device	*tty_dev;
+
+		tty_dev = tty_register_device(gs_tty_driver, i, &g->dev);
+		if (IS_ERR(tty_dev))
+			pr_warning("%s: no classdev for port %d, err %ld\n",
+				__func__, i, PTR_ERR(tty_dev));
+	}
+
+	pr_debug("%s: registered %d ttyGS* device%s\n", __func__,
+			count, (count == 1) ? "" : "s");
+
+	return status;
+fail:
+	while (count--)
+		kfree(ports[count].port);
+	put_tty_driver(gs_tty_driver);
+	gs_tty_driver = NULL;
+	return status;
+}
+
+static int gs_closed(struct gs_port *port)
+{
+	int cond;
+
+	spin_lock_irq(&port->port_lock);
+	cond = (port->port.count == 0) && !port->openclose;
+	spin_unlock_irq(&port->port_lock);
+	return cond;
+}
+
+/**
+ * gserial_cleanup - remove TTY-over-USB driver and devices
+ * Context: may sleep
+ *
+ * This is called to free all resources allocated by @gserial_setup().
+ * Accordingly, it may need to wait until some open /dev/ files have
+ * closed.
+ *
+ * The caller must have issued @gserial_disconnect() for any ports
+ * that had previously been connected, so that there is never any
+ * I/O pending when it's called.
+ */
+void gserial_cleanup(void)
+{
+	unsigned	i;
+	struct gs_port	*port;
+
+	if (!gs_tty_driver)
+		return;
+
+	/* start sysfs and /dev/ttyGS* node removal */
+	for (i = 0; i < n_ports; i++)
+		tty_unregister_device(gs_tty_driver, i);
+
+	for (i = 0; i < n_ports; i++) {
+		/* prevent new opens */
+		mutex_lock(&ports[i].lock);
+		port = ports[i].port;
+		ports[i].port = NULL;
+		mutex_unlock(&ports[i].lock);
+
+		tasklet_kill(&port->push);
+
+		/* wait for old opens to finish */
+		wait_event(port->port.close_wait, gs_closed(port));
+
+		WARN_ON(port->port_usb != NULL);
+
+		kfree(port);
+	}
+	n_ports = 0;
+
+	tty_unregister_driver(gs_tty_driver);
+	put_tty_driver(gs_tty_driver);
+	gs_tty_driver = NULL;
+
+	pr_debug("%s: cleaned up ttyGS* support\n", __func__);
+}
+
+/**
+ * gserial_connect - notify TTY I/O glue that USB link is active
+ * @gser: the function, set up with endpoints and descriptors
+ * @port_num: which port is active
+ * Context: any (usually from irq)
+ *
+ * This is called activate endpoints and let the TTY layer know that
+ * the connection is active ... not unlike "carrier detect".  It won't
+ * necessarily start I/O queues; unless the TTY is held open by any
+ * task, there would be no point.  However, the endpoints will be
+ * activated so the USB host can perform I/O, subject to basic USB
+ * hardware flow control.
+ *
+ * Caller needs to have set up the endpoints and USB function in @dev
+ * before calling this, as well as the appropriate (speed-specific)
+ * endpoint descriptors, and also have set up the TTY driver by calling
+ * @gserial_setup().
+ *
+ * Returns negative errno or zero.
+ * On success, ep->driver_data will be overwritten.
+ */
+int gserial_connect(struct gserial *gser, u8 port_num)
+{
+	struct gs_port	*port;
+	unsigned long	flags;
+	int		status;
+
+	if (!gs_tty_driver || port_num >= n_ports)
+		return -ENXIO;
+
+	/* we "know" gserial_cleanup() hasn't been called */
+	port = ports[port_num].port;
+
+	/* activate the endpoints */
+	status = usb_ep_enable(gser->in);
+	if (status < 0)
+		return status;
+	gser->in->driver_data = port;
+
+	status = usb_ep_enable(gser->out);
+	if (status < 0)
+		goto fail_out;
+	gser->out->driver_data = port;
+
+	/* then tell the tty glue that I/O can work */
+	spin_lock_irqsave(&port->port_lock, flags);
+	gser->ioport = port;
+	port->port_usb = gser;
+
+	/* REVISIT unclear how best to handle this state...
+	 * we don't really couple it with the Linux TTY.
+	 */
+	gser->port_line_coding = port->port_line_coding;
+
+	/* REVISIT if waiting on "carrier detect", signal. */
+
+	/* if it's already open, start I/O ... and notify the serial
+	 * protocol about open/close status (connect/disconnect).
+	 */
+	if (port->port.count) {
+		pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
+		gs_start_io(port);
+		if (gser->connect)
+			gser->connect(gser);
+	} else {
+		if (gser->disconnect)
+			gser->disconnect(gser);
+	}
+
+	spin_unlock_irqrestore(&port->port_lock, flags);
+
+	return status;
+
+fail_out:
+	usb_ep_disable(gser->in);
+	gser->in->driver_data = NULL;
+	return status;
+}
+
+/**
+ * gserial_disconnect - notify TTY I/O glue that USB link is inactive
+ * @gser: the function, on which gserial_connect() was called
+ * Context: any (usually from irq)
+ *
+ * This is called to deactivate endpoints and let the TTY layer know
+ * that the connection went inactive ... not unlike "hangup".
+ *
+ * On return, the state is as if gserial_connect() had never been called;
+ * there is no active USB I/O on these endpoints.
+ */
+void gserial_disconnect(struct gserial *gser)
+{
+	struct gs_port	*port = gser->ioport;
+	unsigned long	flags;
+
+	if (!port)
+		return;
+
+	/* tell the TTY glue not to do I/O here any more */
+	spin_lock_irqsave(&port->port_lock, flags);
+
+	/* REVISIT as above: how best to track this? */
+	port->port_line_coding = gser->port_line_coding;
+
+	port->port_usb = NULL;
+	gser->ioport = NULL;
+	if (port->port.count > 0 || port->openclose) {
+		wake_up_interruptible(&port->drain_wait);
+		if (port->port.tty)
+			tty_hangup(port->port.tty);
+	}
+	spin_unlock_irqrestore(&port->port_lock, flags);
+
+	/* disable endpoints, aborting down any active I/O */
+	usb_ep_disable(gser->out);
+	gser->out->driver_data = NULL;
+
+	usb_ep_disable(gser->in);
+	gser->in->driver_data = NULL;
+
+	/* finally, free any unused/unusable I/O buffers */
+	spin_lock_irqsave(&port->port_lock, flags);
+	if (port->port.count == 0 && !port->openclose)
+		gs_buf_free(&port->port_write_buf);
+	gs_free_requests(gser->out, &port->read_pool, NULL);
+	gs_free_requests(gser->out, &port->read_queue, NULL);
+	gs_free_requests(gser->in, &port->write_pool, NULL);
+
+	port->read_allocated = port->read_started =
+		port->write_allocated = port->write_started = 0;
+
+	spin_unlock_irqrestore(&port->port_lock, flags);
+}
diff --git a/drivers/staging/ccg/u_serial.h b/drivers/staging/ccg/u_serial.h
new file mode 100644
index 00000000000..9b0fe6450fb
--- /dev/null
+++ b/drivers/staging/ccg/u_serial.h
@@ -0,0 +1,65 @@
+/*
+ * u_serial.h - interface to USB gadget "serial port"/TTY utilities
+ *
+ * Copyright (C) 2008 David Brownell
+ * Copyright (C) 2008 by Nokia Corporation
+ *
+ * This software is distributed under the terms of the GNU General
+ * Public License ("GPL") as published by the Free Software Foundation,
+ * either version 2 of that License or (at your option) any later version.
+ */
+
+#ifndef __U_SERIAL_H
+#define __U_SERIAL_H
+
+#include <linux/usb/composite.h>
+#include <linux/usb/cdc.h>
+
+/*
+ * One non-multiplexed "serial" I/O port ... there can be several of these
+ * on any given USB peripheral device, if it provides enough endpoints.
+ *
+ * The "u_serial" utility component exists to do one thing:  manage TTY
+ * style I/O using the USB peripheral endpoints listed here, including
+ * hookups to sysfs and /dev for each logical "tty" device.
+ *
+ * REVISIT at least ACM could support tiocmget() if needed.
+ *
+ * REVISIT someday, allow multiplexing several TTYs over these endpoints.
+ */
+struct gserial {
+	struct usb_function		func;
+
+	/* port is managed by gserial_{connect,disconnect} */
+	struct gs_port			*ioport;
+
+	struct usb_ep			*in;
+	struct usb_ep			*out;
+
+	/* REVISIT avoid this CDC-ACM support harder ... */
+	struct usb_cdc_line_coding port_line_coding;	/* 9600-8-N-1 etc */
+
+	/* notification callbacks */
+	void (*connect)(struct gserial *p);
+	void (*disconnect)(struct gserial *p);
+	int (*send_break)(struct gserial *p, int duration);
+};
+
+/* utilities to allocate/free request and buffer */
+struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned len, gfp_t flags);
+void gs_free_req(struct usb_ep *, struct usb_request *req);
+
+/* port setup/teardown is handled by gadget driver */
+int gserial_setup(struct usb_gadget *g, unsigned n_ports);
+void gserial_cleanup(void);
+
+/* connect/disconnect is handled by individual functions */
+int gserial_connect(struct gserial *, u8 port_num);
+void gserial_disconnect(struct gserial *);
+
+/* functions are bound to configurations by a config or gadget driver */
+int acm_bind_config(struct usb_configuration *c, u8 port_num);
+int gser_bind_config(struct usb_configuration *c, u8 port_num);
+int obex_bind_config(struct usb_configuration *c, u8 port_num);
+
+#endif /* __U_SERIAL_H */
diff --git a/drivers/staging/ccg/usbstring.c b/drivers/staging/ccg/usbstring.c
new file mode 100644
index 00000000000..4d25b9009ed
--- /dev/null
+++ b/drivers/staging/ccg/usbstring.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2003 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/string.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/nls.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+
+/**
+ * usb_gadget_get_string - fill out a string descriptor 
+ * @table: of c strings encoded using UTF-8
+ * @id: string id, from low byte of wValue in get string descriptor
+ * @buf: at least 256 bytes, must be 16-bit aligned
+ *
+ * Finds the UTF-8 string matching the ID, and converts it into a
+ * string descriptor in utf16-le.
+ * Returns length of descriptor (always even) or negative errno
+ *
+ * If your driver needs stings in multiple languages, you'll probably
+ * "switch (wIndex) { ... }"  in your ep0 string descriptor logic,
+ * using this routine after choosing which set of UTF-8 strings to use.
+ * Note that US-ASCII is a strict subset of UTF-8; any string bytes with
+ * the eighth bit set will be multibyte UTF-8 characters, not ISO-8859/1
+ * characters (which are also widely used in C strings).
+ */
+int
+usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf)
+{
+	struct usb_string	*s;
+	int			len;
+
+	/* descriptor 0 has the language id */
+	if (id == 0) {
+		buf [0] = 4;
+		buf [1] = USB_DT_STRING;
+		buf [2] = (u8) table->language;
+		buf [3] = (u8) (table->language >> 8);
+		return 4;
+	}
+	for (s = table->strings; s && s->s; s++)
+		if (s->id == id)
+			break;
+
+	/* unrecognized: stall. */
+	if (!s || !s->s)
+		return -EINVAL;
+
+	/* string descriptors have length, tag, then UTF16-LE text */
+	len = min ((size_t) 126, strlen (s->s));
+	len = utf8s_to_utf16s(s->s, len, UTF16_LITTLE_ENDIAN,
+			(wchar_t *) &buf[2], 126);
+	if (len < 0)
+		return -EINVAL;
+	buf [0] = (len + 1) * 2;
+	buf [1] = USB_DT_STRING;
+	return buf [0];
+}
+
diff --git a/drivers/staging/ced1401/Kconfig b/drivers/staging/ced1401/Kconfig
new file mode 100644
index 00000000000..ae36d1b2ba9
--- /dev/null
+++ b/drivers/staging/ced1401/Kconfig
@@ -0,0 +1,6 @@
+config CED1401
+	tristate "Cambridge Electronic Design 1401 USB support"
+	depends on USB
+	help
+	  This driver supports the Cambridge Electronic Design 1401 USB device
+	  (whatever that is.)
diff --git a/drivers/staging/ced1401/Makefile b/drivers/staging/ced1401/Makefile
new file mode 100644
index 00000000000..f0c114b2b4b
--- /dev/null
+++ b/drivers/staging/ced1401/Makefile
@@ -0,0 +1,3 @@
+
+obj-$(CONFIG_CED1401)	:= cedusb.o
+cedusb-objs	:= usb1401.o ced_ioc.o
diff --git a/drivers/staging/ced1401/TODO b/drivers/staging/ced1401/TODO
new file mode 100644
index 00000000000..9fd5630bdf4
--- /dev/null
+++ b/drivers/staging/ced1401/TODO
@@ -0,0 +1,10 @@
+TODO:
+	- coding syle fixes
+	- build warning fixups
+	- ioctl auditing
+	- usb api auditing
+	- proper USB minor number (it's stomping on an existing one right now.)
+
+Please send patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org> and Cc:
+Alois Schlögl <alois.schloegl@ist.ac.at>
+
diff --git a/drivers/staging/ced1401/ced_ioc.c b/drivers/staging/ced1401/ced_ioc.c
new file mode 100644
index 00000000000..c9492edaadd
--- /dev/null
+++ b/drivers/staging/ced1401/ced_ioc.c
@@ -0,0 +1,1515 @@
+/* ced_ioc.c
+ ioctl part of the 1401 usb device driver for linux.
+ Copyright (C) 2010 Cambridge Electronic Design Ltd
+ Author Greg P Smith (greg@ced.co.uk)
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kref.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/page-flags.h>
+#include <linux/pagemap.h>
+#include <linux/jiffies.h>
+
+#include "usb1401.h"
+
+/****************************************************************************
+** FlushOutBuff
+**
+** Empties the Output buffer and sets int lines. Used from user level only
+****************************************************************************/
+void FlushOutBuff(DEVICE_EXTENSION * pdx)
+{
+	dev_dbg(&pdx->interface->dev, "%s currentState=%d", __func__,
+		pdx->sCurrentState);
+	if (pdx->sCurrentState == U14ERR_TIME)	/* Do nothing if hardware in trouble */
+		return;
+//    CharSend_Cancel(pdx);                   /* Kill off any pending I/O */
+	spin_lock_irq(&pdx->charOutLock);
+	pdx->dwNumOutput = 0;
+	pdx->dwOutBuffGet = 0;
+	pdx->dwOutBuffPut = 0;
+	spin_unlock_irq(&pdx->charOutLock);
+}
+
+/****************************************************************************
+**
+** FlushInBuff
+**
+** Empties the input buffer and sets int lines
+****************************************************************************/
+void FlushInBuff(DEVICE_EXTENSION * pdx)
+{
+	dev_dbg(&pdx->interface->dev, "%s currentState=%d", __func__,
+		pdx->sCurrentState);
+	if (pdx->sCurrentState == U14ERR_TIME)	/* Do nothing if hardware in trouble */
+		return;
+//    CharRead_Cancel(pDevObject);            /* Kill off any pending I/O */
+	spin_lock_irq(&pdx->charInLock);
+	pdx->dwNumInput = 0;
+	pdx->dwInBuffGet = 0;
+	pdx->dwInBuffPut = 0;
+	spin_unlock_irq(&pdx->charInLock);
+}
+
+/****************************************************************************
+** PutChars
+**
+** Utility routine to copy chars into the output buffer and fire them off.
+** called from user mode, holds charOutLock.
+****************************************************************************/
+static int PutChars(DEVICE_EXTENSION * pdx, const char *pCh,
+		    unsigned int uCount)
+{
+	int iReturn;
+	spin_lock_irq(&pdx->charOutLock);	// get the output spin lock
+	if ((OUTBUF_SZ - pdx->dwNumOutput) >= uCount) {
+		unsigned int u;
+		for (u = 0; u < uCount; u++) {
+			pdx->outputBuffer[pdx->dwOutBuffPut++] = pCh[u];
+			if (pdx->dwOutBuffPut >= OUTBUF_SZ)
+				pdx->dwOutBuffPut = 0;
+		}
+		pdx->dwNumOutput += uCount;
+		spin_unlock_irq(&pdx->charOutLock);
+		iReturn = SendChars(pdx);	// ...give a chance to transmit data
+	} else {
+		iReturn = U14ERR_NOOUT;	// no room at the out (ha-ha)
+		spin_unlock_irq(&pdx->charOutLock);
+	}
+	return iReturn;
+}
+
+/*****************************************************************************
+** Add the data in pData (local pointer) of length n to the output buffer, and
+** trigger an output transfer if this is appropriate. User mode.
+** Holds the io_mutex
+*****************************************************************************/
+int SendString(DEVICE_EXTENSION * pdx, const char __user * pData,
+	       unsigned int n)
+{
+	int iReturn = U14ERR_NOERROR;	// assume all will be well
+	char buffer[OUTBUF_SZ + 1];	// space in our address space for characters
+	if (n > OUTBUF_SZ)	// check space in local buffer...
+		return U14ERR_NOOUT;	// ...too many characters
+	if (copy_from_user(buffer, pData, n))
+		return -EFAULT;
+	buffer[n] = 0;		// terminate for debug purposes
+
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	if (n > 0)		// do nothing if nowt to do!
+	{
+		dev_dbg(&pdx->interface->dev, "%s n=%d>%s<", __func__, n,
+			buffer);
+		iReturn = PutChars(pdx, buffer, n);
+	}
+
+	Allowi(pdx, false);	// make sure we have input int
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** SendChar
+**
+** Sends a single character to the 1401. User mode, holds io_mutex.
+****************************************************************************/
+int SendChar(DEVICE_EXTENSION * pdx, char c)
+{
+	int iReturn;
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	iReturn = PutChars(pdx, &c, 1);
+	dev_dbg(&pdx->interface->dev, "SendChar >%c< (0x%02x)", c, c);
+	Allowi(pdx, false);	// Make sure char reads are running
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
+
+/***************************************************************************
+**
+** Get1401State
+**
+**  Retrieves state information from the 1401, adjusts the 1401 state held
+**  in the device extension to indicate the current 1401 type.
+**
+**  *state is updated with information about the 1401 state as returned by the
+**         1401. The low byte is a code for what 1401 is doing:
+**
+**  0       normal 1401 operation
+**  1       sending chars to host
+**  2       sending block data to host
+**  3       reading block data from host
+**  4       sending an escape sequence to the host
+**  0x80    1401 is executing self-test, in which case the upper word
+**          is the last error code seen (or zero for no new error).
+**
+** *error is updated with error information if a self-test error code
+**          is returned in the upper word of state.
+**
+**  both state and error are set to -1 if there are comms problems, and
+**  to zero if there is a simple failure.
+**
+** return error code (U14ERR_NOERROR for OK)
+*/
+int Get1401State(DEVICE_EXTENSION * pdx, __u32 * state, __u32 * error)
+{
+	int nGot;
+	dev_dbg(&pdx->interface->dev, "Get1401State() entry");
+
+	*state = 0xFFFFFFFF;	// Start off with invalid state
+	nGot = usb_control_msg(pdx->udev, usb_rcvctrlpipe(pdx->udev, 0),
+			       GET_STATUS, (D_TO_H | VENDOR | DEVREQ), 0, 0,
+			       pdx->statBuf, sizeof(pdx->statBuf), HZ);
+	if (nGot != sizeof(pdx->statBuf)) {
+		dev_err(&pdx->interface->dev,
+			"Get1401State() FAILED, return code %d", nGot);
+		pdx->sCurrentState = U14ERR_TIME;	// Indicate that things are very wrong indeed
+		*state = 0;	// Force status values to a known state
+		*error = 0;
+	} else {
+		int nDevice;
+		dev_dbg(&pdx->interface->dev,
+			"Get1401State() Success, state: 0x%x, 0x%x",
+			pdx->statBuf[0], pdx->statBuf[1]);
+
+		*state = pdx->statBuf[0];	// Return the state values to the calling code
+		*error = pdx->statBuf[1];
+
+		nDevice = pdx->udev->descriptor.bcdDevice >> 8;	// 1401 type code value
+		switch (nDevice)	// so we can clean up current state
+		{
+		case 0:
+			pdx->sCurrentState = U14ERR_U1401;
+			break;
+
+		default:	// allow lots of device codes for future 1401s
+			if ((nDevice >= 1) && (nDevice <= 23))
+				pdx->sCurrentState = (short)(nDevice + 6);
+			else
+				pdx->sCurrentState = U14ERR_ILL;
+			break;
+		}
+	}
+
+	return pdx->sCurrentState >= 0 ? U14ERR_NOERROR : pdx->sCurrentState;
+}
+
+/****************************************************************************
+** ReadWrite_Cancel
+**
+** Kills off staged read\write request from the USB if one is pending.
+****************************************************************************/
+int ReadWrite_Cancel(DEVICE_EXTENSION * pdx)
+{
+	dev_dbg(&pdx->interface->dev, "ReadWrite_Cancel entry %d",
+		pdx->bStagedUrbPending);
+#ifdef NOT_WRITTEN_YET
+	int ntStatus = STATUS_SUCCESS;
+	bool bResult = false;
+	unsigned int i;
+	// We can fill this in when we know how we will implement the staged transfer stuff
+	spin_lock_irq(&pdx->stagedLock);
+
+	if (pdx->bStagedUrbPending)	// anything to be cancelled? May need more...
+	{
+		dev_info(&pdx->interface - dev,
+			 "ReadWrite_Cancel about to cancel Urb");
+
+		//       KeClearEvent(&pdx->StagingDoneEvent);   // Clear the staging done flag
+		USB_ASSERT(pdx->pStagedIrp != NULL);
+
+		// Release the spinlock first otherwise the completion routine may hang
+		//  on the spinlock while this function hands waiting for the event.
+		spin_unlock_irq(&pdx->stagedLock);
+		bResult = IoCancelIrp(pdx->pStagedIrp);	// Actually do the cancel
+		if (bResult) {
+			LARGE_INTEGER timeout;
+			timeout.QuadPart = -10000000;	// Use a timeout of 1 second
+			dev_info(&pdx->interface - dev,
+				 "ReadWrite_Cancel about to wait till done");
+			ntStatus =
+			    KeWaitForSingleObject(&pdx->StagingDoneEvent,
+						  Executive, KernelMode, FALSE,
+						  &timeout);
+		} else {
+			dev_info(&pdx->interface - dev,
+				 "ReadWrite_Cancel, cancellation failed");
+			ntStatus = U14ERR_FAIL;
+		}
+		USB_KdPrint(DBGLVL_DEFAULT,
+			    ("ReadWrite_Cancel ntStatus = 0x%x decimal %d\n",
+			     ntStatus, ntStatus));
+	} else
+		spin_unlock_irq(&pdx->stagedLock);
+
+	dev_info(&pdx->interface - dev, "ReadWrite_Cancel  done");
+	return ntStatus;
+#else
+	return U14ERR_NOERROR;
+#endif
+
+}
+
+/***************************************************************************
+** InSelfTest - utility to check in self test. Return 1 for ST, 0 for not or
+** a -ve error code if we failed for some reason.
+***************************************************************************/
+static int InSelfTest(DEVICE_EXTENSION * pdx, unsigned int *pState)
+{
+	unsigned int state, error;
+	int iReturn = Get1401State(pdx, &state, &error);	// see if in self-test
+	if (iReturn == U14ERR_NOERROR)	// if all still OK
+		iReturn = (state == (unsigned int)-1) ||	// TX problem or...
+		    ((state & 0xff) == 0x80);	// ...self test
+	*pState = state;	// return actual state
+	return iReturn;
+}
+
+/***************************************************************************
+** Is1401 - ALWAYS CALLED HOLDING THE io_mutex
+**
+** Tests for the current state of the 1401. Sets sCurrentState:
+**
+**  U14ERR_NOIF  1401  i/f card not installed (not done here)
+**  U14ERR_OFF   1401  apparently not switched on
+**  U14ERR_NC    1401  appears to be not connected
+**  U14ERR_ILL   1401  if it is there its not very well at all
+**  U14ERR_TIME  1401  appears OK, but doesn't communicate - very bad
+**  U14ERR_STD   1401  OK and ready for use
+**  U14ERR_PLUS  1401+ OK and ready for use
+**  U14ERR_U1401 Micro1401 OK and ready for use
+**  U14ERR_POWER Power1401 OK and ready for use
+**  U14ERR_U14012 Micro1401 mkII OK and ready for use
+**
+**  Returns TRUE if a 1401 detected and OK, else FALSE
+****************************************************************************/
+bool Is1401(DEVICE_EXTENSION * pdx)
+{
+	int iReturn;
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	ced_draw_down(pdx);	// wait for, then kill outstanding Urbs
+	FlushInBuff(pdx);	// Clear out input buffer & pipe
+	FlushOutBuff(pdx);	// Clear output buffer & pipe
+
+	// The next call returns 0 if OK, but has returned 1 in the past, meaning that
+	// usb_unlock_device() is needed... now it always is
+	iReturn = usb_lock_device_for_reset(pdx->udev, pdx->interface);
+
+	// release the io_mutex because if we don't, we will deadlock due to system
+	// calls back into the driver.
+	mutex_unlock(&pdx->io_mutex);	// locked, so we will not get system calls
+	if (iReturn >= 0)	// if we failed
+	{
+		iReturn = usb_reset_device(pdx->udev);	// try to do the reset
+		usb_unlock_device(pdx->udev);	// undo the lock
+	}
+
+	mutex_lock(&pdx->io_mutex);	// hold stuff off while we wait
+	pdx->dwDMAFlag = MODE_CHAR;	// Clear DMA mode flag regardless!
+	if (iReturn == 0)	// if all is OK still
+	{
+		unsigned int state;
+		iReturn = InSelfTest(pdx, &state);	// see if likely in self test
+		if (iReturn > 0)	// do we need to wait for self-test?
+		{
+			unsigned long ulTimeOut = jiffies + 30 * HZ;	// when to give up
+			while ((iReturn > 0) && time_before(jiffies, ulTimeOut)) {
+				schedule();	// let other stuff run
+				iReturn = InSelfTest(pdx, &state);	// see if done yet
+			}
+		}
+
+		if (iReturn == 0)	// if all is OK...
+			iReturn = state == 0;	// then sucess is that the state is 0
+	} else
+		iReturn = 0;	// we failed
+	pdx->bForceReset = false;	// Clear forced reset flag now
+
+	return iReturn > 0;
+}
+
+/****************************************************************************
+** QuickCheck  - ALWAYS CALLED HOLDING THE io_mutex
+** This is used to test for a 1401. It will try to do a quick check if all is
+**  OK, that is the 1401 was OK the last time it was asked, and there is no DMA
+**  in progress, and if the bTestBuff flag is set, the character buffers must be
+**  empty too. If the quick check shows that the state is still the same, then
+**  all is OK.
+**
+** If any of the above conditions are not met, or if the state or type of the
+**  1401 has changed since the previous test, the full Is1401 test is done, but
+**  only if bCanReset is also TRUE.
+**
+** The return value is TRUE if a useable 1401 is found, FALSE if not
+*/
+bool QuickCheck(DEVICE_EXTENSION * pdx, bool bTestBuff, bool bCanReset)
+{
+	bool bRet = false;	// assume it will fail and we will reset
+	bool bShortTest;
+
+	bShortTest = ((pdx->dwDMAFlag == MODE_CHAR) &&	// no DMA running
+		      (!pdx->bForceReset) &&	// Not had a real reset forced
+		      (pdx->sCurrentState >= U14ERR_STD));	// No 1401 errors stored
+
+	dev_dbg(&pdx->interface->dev,
+		"%s DMAFlag:%d, state:%d, force:%d, testBuff:%d, short:%d",
+		__func__, pdx->dwDMAFlag, pdx->sCurrentState, pdx->bForceReset,
+		bTestBuff, bShortTest);
+
+	if ((bTestBuff) &&	// Buffer check requested, and...
+	    (pdx->dwNumInput || pdx->dwNumOutput))	// ...characters were in the buffer?
+	{
+		bShortTest = false;	// Then do the full test
+		dev_dbg(&pdx->interface->dev,
+			"%s will reset as buffers not empty", __func__);
+	}
+
+	if (bShortTest || !bCanReset)	// Still OK to try the short test?
+	{			// Always test if no reset - we want state update
+		unsigned int state, error;
+		dev_dbg(&pdx->interface->dev, "%s->Get1401State", __func__);
+		if (Get1401State(pdx, &state, &error) == U14ERR_NOERROR)	// Check on the 1401 state
+		{
+			if ((state & 0xFF) == 0)	// If call worked, check the status value
+				bRet = true;	// If that was zero, all is OK, no reset needed
+		}
+	}
+
+	if (!bRet && bCanReset)	// If all not OK, then
+	{
+		dev_info(&pdx->interface->dev, "%s->Is1401 %d %d %d %d",
+			 __func__, bShortTest, pdx->sCurrentState, bTestBuff,
+			 pdx->bForceReset);
+		bRet = Is1401(pdx);	//  do full test
+	}
+
+	return bRet;
+}
+
+/****************************************************************************
+** Reset1401
+**
+** Resets the 1401 and empties the i/o buffers
+*****************************************************************************/
+int Reset1401(DEVICE_EXTENSION * pdx)
+{
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	dev_dbg(&pdx->interface->dev, "ABout to call QuickCheck");
+	QuickCheck(pdx, true, true);	// Check 1401, reset if not OK
+	mutex_unlock(&pdx->io_mutex);
+	return U14ERR_NOERROR;
+}
+
+/****************************************************************************
+** GetChar
+**
+** Gets a single character from the 1401
+****************************************************************************/
+int GetChar(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = U14ERR_NOIN;	// assume we will get  nothing
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+
+	dev_dbg(&pdx->interface->dev, "GetChar");
+
+	Allowi(pdx, false);	// Make sure char reads are running
+	SendChars(pdx);		// and send any buffered chars
+
+	spin_lock_irq(&pdx->charInLock);
+	if (pdx->dwNumInput > 0)	// worth looking
+	{
+		iReturn = pdx->inputBuffer[pdx->dwInBuffGet++];
+		if (pdx->dwInBuffGet >= INBUF_SZ)
+			pdx->dwInBuffGet = 0;
+		pdx->dwNumInput--;
+	} else
+		iReturn = U14ERR_NOIN;	// no input data to read
+	spin_unlock_irq(&pdx->charInLock);
+
+	Allowi(pdx, false);	// Make sure char reads are running
+
+	mutex_unlock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	return iReturn;
+}
+
+/****************************************************************************
+** GetString
+**
+** Gets a string from the 1401. Returns chars up to the next CR or when
+** there are no more to read or nowhere to put them. CR is translated to
+** 0 and counted as a character. If the string does not end in a 0, we will
+** add one, if there is room, but it is not counted as a character.
+**
+** returns the count of characters (including the terminator, or 0 if none
+** or a negative error code.
+****************************************************************************/
+int GetString(DEVICE_EXTENSION * pdx, char __user * pUser, int n)
+{
+	int nAvailable;		// character in the buffer
+	int iReturn = U14ERR_NOIN;
+	if (n <= 0)
+		return -ENOMEM;
+
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	Allowi(pdx, false);	// Make sure char reads are running
+	SendChars(pdx);		// and send any buffered chars
+
+	spin_lock_irq(&pdx->charInLock);
+	nAvailable = pdx->dwNumInput;	// characters available now
+	if (nAvailable > n)	// read max of space in pUser...
+		nAvailable = n;	// ...or input characters
+
+	if (nAvailable > 0)	// worth looking?
+	{
+		char buffer[INBUF_SZ + 1];	// space for a linear copy of data
+		int nGot = 0;
+		int nCopyToUser;	// number to copy to user
+		char cData;
+		do {
+			cData = pdx->inputBuffer[pdx->dwInBuffGet++];
+			if (cData == CR_CHAR)	// replace CR with zero
+				cData = (char)0;
+
+			if (pdx->dwInBuffGet >= INBUF_SZ)
+				pdx->dwInBuffGet = 0;	// wrap buffer pointer
+
+			buffer[nGot++] = cData;	// save the output
+		}
+		while ((nGot < nAvailable) && cData);
+
+		nCopyToUser = nGot;	// what to copy...
+		if (cData)	// do we need null
+		{
+			buffer[nGot] = (char)0;	// make it tidy
+			if (nGot < n)	// if space in user buffer...
+				++nCopyToUser;	// ...copy the 0 as well.
+		}
+
+		pdx->dwNumInput -= nGot;
+		spin_unlock_irq(&pdx->charInLock);
+
+		dev_dbg(&pdx->interface->dev,
+			"GetString read %d characters >%s<", nGot, buffer);
+		if (copy_to_user(pUser, buffer, nCopyToUser))
+			iReturn = -EFAULT;
+		else
+			iReturn = nGot;		// report characters read
+	} else
+		spin_unlock_irq(&pdx->charInLock);
+
+	Allowi(pdx, false);	// Make sure char reads are running
+	mutex_unlock(&pdx->io_mutex);	// Protect disconnect from new i/o
+
+	return iReturn;
+}
+
+/*******************************************************************************
+** Get count of characters in the inout buffer.
+*******************************************************************************/
+int Stat1401(DEVICE_EXTENSION * pdx)
+{
+	int iReturn;
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	Allowi(pdx, false);	// make sure we allow pending chars
+	SendChars(pdx);		// in both directions
+	iReturn = pdx->dwNumInput;	// no lock as single read
+	mutex_unlock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	return iReturn;
+}
+
+/****************************************************************************
+** LineCount
+**
+** Returns the number of newline chars in the buffer. There is no need for
+** any fancy interlocks as we only read the interrupt routine data, and the
+** system is arranged so nothing can be destroyed.
+****************************************************************************/
+int LineCount(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = 0;	// will be count of line ends
+
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	Allowi(pdx, false);	// Make sure char reads are running
+	SendChars(pdx);		// and send any buffered chars
+	spin_lock_irq(&pdx->charInLock);	// Get protection
+
+	if (pdx->dwNumInput > 0)	// worth looking?
+	{
+		unsigned int dwIndex = pdx->dwInBuffGet;	// start at first available
+		unsigned int dwEnd = pdx->dwInBuffPut;	// Position for search end
+		do {
+			if (pdx->inputBuffer[dwIndex++] == CR_CHAR)
+				++iReturn;	// inc count if CR
+
+			if (dwIndex >= INBUF_SZ)	// see if we fall off buff
+				dwIndex = 0;
+		}
+		while (dwIndex != dwEnd);	// go to last avaliable
+	}
+
+	spin_unlock_irq(&pdx->charInLock);
+	dev_dbg(&pdx->interface->dev, "LineCount returned %d", iReturn);
+	mutex_unlock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	return iReturn;
+}
+
+/****************************************************************************
+** GetOutBufSpace
+**
+** Gets the space in the output buffer. Called from user code.
+*****************************************************************************/
+int GetOutBufSpace(DEVICE_EXTENSION * pdx)
+{
+	int iReturn;
+	mutex_lock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	SendChars(pdx);		// send any buffered chars
+	iReturn = (int)(OUTBUF_SZ - pdx->dwNumOutput);	// no lock needed for single read
+	dev_dbg(&pdx->interface->dev, "OutBufSpace %d", iReturn);
+	mutex_unlock(&pdx->io_mutex);	// Protect disconnect from new i/o
+	return iReturn;
+}
+
+/****************************************************************************
+**
+** ClearArea
+**
+** Clears up a transfer area. This is always called in the context of a user
+** request, never from a call-back.
+****************************************************************************/
+int ClearArea(DEVICE_EXTENSION * pdx, int nArea)
+{
+	int iReturn = U14ERR_NOERROR;
+
+	if ((nArea < 0) || (nArea >= MAX_TRANSAREAS)) {
+		iReturn = U14ERR_BADAREA;
+		dev_err(&pdx->interface->dev, "%s Attempt to clear area %d",
+			__func__, nArea);
+	} else {
+		TRANSAREA *pTA = &pdx->rTransDef[nArea];	// to save typing
+		if (!pTA->bUsed)	// if not used...
+			iReturn = U14ERR_NOTSET;	// ...nothing to be done
+		else {
+			// We must save the memory we return as we shouldn't mess with memory while
+			// holding a spin lock.
+			struct page **pPages = 0;	// save page address list
+			int nPages = 0;	// and number of pages
+			int np;
+
+			dev_dbg(&pdx->interface->dev, "%s area %d", __func__,
+				nArea);
+			spin_lock_irq(&pdx->stagedLock);
+			if ((pdx->StagedId == nArea)
+			    && (pdx->dwDMAFlag > MODE_CHAR)) {
+				iReturn = U14ERR_UNLOCKFAIL;	// cannot delete as in use
+				dev_err(&pdx->interface->dev,
+					"%s call on area %d while active",
+					__func__, nArea);
+			} else {
+				pPages = pTA->pPages;	// save page address list
+				nPages = pTA->nPages;	// and page count
+				if (pTA->dwEventSz)	// if events flagging in use
+					wake_up_interruptible(&pTA->wqEvent);	// release anything that was waiting
+
+				if (pdx->bXFerWaiting
+				    && (pdx->rDMAInfo.wIdent == nArea))
+					pdx->bXFerWaiting = false;	// Cannot have pending xfer if area cleared
+
+				// Clean out the TRANSAREA except for the wait queue, which is at the end
+				// This sets bUsed to false and dwEventSz to 0 to say area not used and no events.
+				memset(pTA, 0,
+				       sizeof(TRANSAREA) -
+				       sizeof(wait_queue_head_t));
+			}
+			spin_unlock_irq(&pdx->stagedLock);
+
+			if (pPages)	// if we decided to release the memory
+			{
+				// Now we must undo the pinning down of the pages. We will assume the worst and mark
+				// all the pages as dirty. Don't be tempted to move this up above as you must not be
+				// holding a spin lock to do this stuff as it is not atomic.
+				dev_dbg(&pdx->interface->dev, "%s nPages=%d",
+					__func__, nPages);
+
+				for (np = 0; np < nPages; ++np) {
+					if (pPages[np]) {
+						SetPageDirty(pPages[np]);
+						page_cache_release(pPages[np]);
+					}
+				}
+
+				kfree(pPages);
+				dev_dbg(&pdx->interface->dev,
+					"%s kfree(pPages) done", __func__);
+			}
+		}
+	}
+
+	return iReturn;
+}
+
+/****************************************************************************
+** SetArea
+**
+** Sets up a transfer area - the functional part. Called by both
+** SetTransfer and SetCircular.
+****************************************************************************/
+static int SetArea(DEVICE_EXTENSION * pdx, int nArea, char __user * puBuf,
+		   unsigned int dwLength, bool bCircular, bool bCircToHost)
+{
+	// Start by working out the page aligned start of the area and the size
+	// of the area in pages, allowing for the start not being aligned and the
+	// end needing to be rounded up to a page boundary.
+	unsigned long ulStart = ((unsigned long)puBuf) & PAGE_MASK;
+	unsigned int ulOffset = ((unsigned long)puBuf) & (PAGE_SIZE - 1);
+	int len = (dwLength + ulOffset + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+	TRANSAREA *pTA = &pdx->rTransDef[nArea];	// to save typing
+	struct page **pPages = 0;	// space for page tables
+	int nPages = 0;		// and number of pages
+
+	int iReturn = ClearArea(pdx, nArea);	// see if OK to use this area
+	if ((iReturn != U14ERR_NOTSET) &&	// if not area unused and...
+	    (iReturn != U14ERR_NOERROR))	// ...not all OK, then...
+		return iReturn;	// ...we cannot use this area
+
+	if (!access_ok(VERIFY_WRITE, puBuf, dwLength))	// if we cannot access the memory...
+		return -EFAULT;	// ...then we are done
+
+	// Now allocate space to hold the page pointer and virtual address pointer tables
+	pPages =
+	    (struct page **)kmalloc(len * sizeof(struct page *), GFP_KERNEL);
+	if (!pPages) {
+		iReturn = U14ERR_NOMEMORY;
+		goto error;
+	}
+	dev_dbg(&pdx->interface->dev, "%s %p, length=%06x, circular %d",
+		__func__, puBuf, dwLength, bCircular);
+
+	// To pin down user pages we must first acquire the mapping semaphore.
+	down_read(&current->mm->mmap_sem);	// get memory map semaphore
+	nPages =
+	    get_user_pages(current, current->mm, ulStart, len, 1, 0, pPages, 0);
+	up_read(&current->mm->mmap_sem);	// release the semaphore
+	dev_dbg(&pdx->interface->dev, "%s nPages = %d", __func__, nPages);
+
+	if (nPages > 0)		// if we succeeded
+	{
+		// If you are tempted to use page_address (form LDD3), forget it. You MUST use
+		// kmap() or kmap_atomic() to get a virtual address. page_address will give you
+		// (null) or at least it does in this context with an x86 machine.
+		spin_lock_irq(&pdx->stagedLock);
+		pTA->lpvBuff = puBuf;	// keep start of region (user address)
+		pTA->dwBaseOffset = ulOffset;	// save offset in first page to start of xfer
+		pTA->dwLength = dwLength;	// Size if the region in bytes
+		pTA->pPages = pPages;	// list of pages that are used by buffer
+		pTA->nPages = nPages;	// number of pages
+
+		pTA->bCircular = bCircular;
+		pTA->bCircToHost = bCircToHost;
+
+		pTA->aBlocks[0].dwOffset = 0;
+		pTA->aBlocks[0].dwSize = 0;
+		pTA->aBlocks[1].dwOffset = 0;
+		pTA->aBlocks[1].dwSize = 0;
+		pTA->bUsed = true;	// This is now a used block
+
+		spin_unlock_irq(&pdx->stagedLock);
+		iReturn = U14ERR_NOERROR;	// say all was well
+	} else {
+		iReturn = U14ERR_LOCKFAIL;
+		goto error;
+	}
+
+	return iReturn;
+
+error:
+	kfree(pPages);
+	return iReturn;
+}
+
+/****************************************************************************
+** SetTransfer
+**
+** Sets up a transfer area record. If the area is already set, we attempt to
+** unset it. Unsetting will fail if the area is booked, and a transfer to that
+** area is in progress. Otherwise, we will release the area and re-assign it.
+****************************************************************************/
+int SetTransfer(DEVICE_EXTENSION * pdx, TRANSFERDESC __user * pTD)
+{
+	int iReturn;
+	TRANSFERDESC td;
+
+	if (copy_from_user(&td, pTD, sizeof(td)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s area:%d, size:%08x", __func__,
+		td.wAreaNum, td.dwLength);
+	// The strange cast is done so that we don't get warnings in 32-bit linux about the size of the
+	// pointer. The pointer is always passed as a 64-bit object so that we don't have problems using
+	// a 32-bit program on a 64-bit system. unsigned long is 64-bits on a 64-bit system.
+	iReturn =
+	    SetArea(pdx, td.wAreaNum,
+		    (char __user *)((unsigned long)td.lpvBuff), td.dwLength,
+		    false, false);
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
+
+/****************************************************************************
+** UnSetTransfer
+** Erases a transfer area record
+****************************************************************************/
+int UnsetTransfer(DEVICE_EXTENSION * pdx, int nArea)
+{
+	int iReturn;
+	mutex_lock(&pdx->io_mutex);
+	iReturn = ClearArea(pdx, nArea);
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
+
+/****************************************************************************
+** SetEvent
+** Creates an event that we can test for based on a transfer to/from an area.
+** The area must be setup for a transfer. We attempt to simulate the Windows
+** driver behavior for events (as we don't actually use them), which is to
+** pretend that whatever the user asked for was achieved, so we return 1 if
+** try to create one, and 0 if they ask to remove (assuming all else was OK).
+****************************************************************************/
+int SetEvent(DEVICE_EXTENSION * pdx, TRANSFEREVENT __user * pTE)
+{
+	int iReturn = U14ERR_NOERROR;
+	TRANSFEREVENT te;
+
+	// get a local copy of the data
+	if (copy_from_user(&te, pTE, sizeof(te)))
+		return -EFAULT;
+
+	if (te.wAreaNum >= MAX_TRANSAREAS)	// the area must exist
+		return U14ERR_BADAREA;
+	else {
+		TRANSAREA *pTA = &pdx->rTransDef[te.wAreaNum];
+		mutex_lock(&pdx->io_mutex);	// make sure we have no competitor
+		spin_lock_irq(&pdx->stagedLock);
+		if (pTA->bUsed)	// area must be in use
+		{
+			pTA->dwEventSt = te.dwStart;	// set area regions
+			pTA->dwEventSz = te.dwLength;	// set size (0 cancels it)
+			pTA->bEventToHost = te.wFlags & 1;	// set the direction
+			pTA->iWakeUp = 0;	// zero the wake up count
+		} else
+			iReturn = U14ERR_NOTSET;
+		spin_unlock_irq(&pdx->stagedLock);
+		mutex_unlock(&pdx->io_mutex);
+	}
+	return iReturn ==
+	    U14ERR_NOERROR ? (te.iSetEvent ? 1 : U14ERR_NOERROR) : iReturn;
+}
+
+/****************************************************************************
+** WaitEvent
+** Sleep the process with a timeout waiting for an event. Returns the number
+** of times that a block met the event condition since we last cleared it or
+** 0 if timed out, or -ve error (bad area or not set, or signal).
+****************************************************************************/
+int WaitEvent(DEVICE_EXTENSION * pdx, int nArea, int msTimeOut)
+{
+	int iReturn;
+	if ((unsigned)nArea >= MAX_TRANSAREAS)
+		return U14ERR_BADAREA;
+	else {
+		int iWait;
+		TRANSAREA *pTA = &pdx->rTransDef[nArea];
+		msTimeOut = (msTimeOut * HZ + 999) / 1000;	// convert timeout to jiffies
+
+		// We cannot wait holding the mutex, but we check the flags while holding
+		// it. This may well be pointless as another thread could get in between
+		// releasing it and the wait call. However, this would have to clear the
+		// iWakeUp flag. However, the !pTA-bUsed may help us in this case.
+		mutex_lock(&pdx->io_mutex);	// make sure we have no competitor
+		if (!pTA->bUsed || !pTA->dwEventSz)	// check something to wait for...
+			return U14ERR_NOTSET;	// ...else we do nothing
+		mutex_unlock(&pdx->io_mutex);
+
+		if (msTimeOut)
+			iWait =
+			    wait_event_interruptible_timeout(pTA->wqEvent,
+							     pTA->iWakeUp
+							     || !pTA->bUsed,
+							     msTimeOut);
+		else
+			iWait =
+			    wait_event_interruptible(pTA->wqEvent, pTA->iWakeUp
+						     || !pTA->bUsed);
+		if (iWait)
+			iReturn = -ERESTARTSYS;	// oops - we have had a SIGNAL
+		else
+			iReturn = pTA->iWakeUp;	// else the wakeup count
+
+		spin_lock_irq(&pdx->stagedLock);
+		pTA->iWakeUp = 0;	// clear the flag
+		spin_unlock_irq(&pdx->stagedLock);
+	}
+	return iReturn;
+}
+
+/****************************************************************************
+** TestEvent
+** Test the event to see if a WaitEvent would return immediately. Returns the
+** number of times a block completed since the last call, or 0 if none or a
+** negative error.
+****************************************************************************/
+int TestEvent(DEVICE_EXTENSION * pdx, int nArea)
+{
+	int iReturn;
+	if ((unsigned)nArea >= MAX_TRANSAREAS)
+		iReturn = U14ERR_BADAREA;
+	else {
+		TRANSAREA *pTA = &pdx->rTransDef[nArea];
+		mutex_lock(&pdx->io_mutex);	// make sure we have no competitor
+		spin_lock_irq(&pdx->stagedLock);
+		iReturn = pTA->iWakeUp;	// get wakeup count since last call
+		pTA->iWakeUp = 0;	// clear the count
+		spin_unlock_irq(&pdx->stagedLock);
+		mutex_unlock(&pdx->io_mutex);
+	}
+	return iReturn;
+}
+
+/****************************************************************************
+** GetTransferInfo
+** Puts the current state of the 1401 in a TGET_TX_BLOCK.
+*****************************************************************************/
+int GetTransfer(DEVICE_EXTENSION * pdx, TGET_TX_BLOCK __user * pTX)
+{
+	int iReturn = U14ERR_NOERROR;
+	unsigned int dwIdent;
+
+	mutex_lock(&pdx->io_mutex);
+	dwIdent = pdx->StagedId;	// area ident for last xfer
+	if (dwIdent >= MAX_TRANSAREAS)
+		iReturn = U14ERR_BADAREA;
+	else {
+		// Return the best information we have - we don't have physical addresses
+		TGET_TX_BLOCK tx;
+		memset(&tx, 0, sizeof(tx));	// clean out local work structure
+		tx.size = pdx->rTransDef[dwIdent].dwLength;
+		tx.linear = (long long)((long)pdx->rTransDef[dwIdent].lpvBuff);
+		tx.avail = GET_TX_MAXENTRIES;	// how many blocks we could return
+		tx.used = 1;	// number we actually return
+		tx.entries[0].physical =
+		    (long long)(tx.linear + pdx->StagedOffset);
+		tx.entries[0].size = tx.size;
+
+		if (copy_to_user(pTX, &tx, sizeof(tx)))
+			iReturn = -EFAULT;
+	}
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
+
+/****************************************************************************
+** KillIO1401
+**
+** Empties the host i/o buffers
+****************************************************************************/
+int KillIO1401(DEVICE_EXTENSION * pdx)
+{
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+	mutex_lock(&pdx->io_mutex);
+	FlushOutBuff(pdx);
+	FlushInBuff(pdx);
+	mutex_unlock(&pdx->io_mutex);
+	return U14ERR_NOERROR;
+}
+
+/****************************************************************************
+** BlkTransState
+** Returns a 0 or a 1 for whether DMA is happening. No point holding a mutex
+** for this as it only does one read.
+*****************************************************************************/
+int BlkTransState(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = pdx->dwDMAFlag != MODE_CHAR;
+	dev_dbg(&pdx->interface->dev, "%s = %d", __func__, iReturn);
+	return iReturn;
+}
+
+/****************************************************************************
+** StateOf1401
+**
+** Puts the current state of the 1401 in the Irp return buffer.
+*****************************************************************************/
+int StateOf1401(DEVICE_EXTENSION * pdx)
+{
+	int iReturn;
+	mutex_lock(&pdx->io_mutex);
+
+	QuickCheck(pdx, false, false);	// get state up to date, no reset
+	iReturn = pdx->sCurrentState;
+
+	mutex_unlock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s = %d", __func__, iReturn);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** StartSelfTest
+**
+** Initiates a self-test cycle. The assumption is that we have no interrupts
+** active, so we should make sure that this is the case.
+*****************************************************************************/
+int StartSelfTest(DEVICE_EXTENSION * pdx)
+{
+	int nGot;
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	ced_draw_down(pdx);	// wait for, then kill outstanding Urbs
+	FlushInBuff(pdx);	// Clear out input buffer & pipe
+	FlushOutBuff(pdx);	// Clear output buffer & pipe
+//    ReadWrite_Cancel(pDeviceObject);        /* so things stay tidy */
+	pdx->dwDMAFlag = MODE_CHAR;	/* Clear DMA mode flags here */
+
+	nGot = usb_control_msg(pdx->udev, usb_rcvctrlpipe(pdx->udev, 0), DB_SELFTEST, (H_TO_D | VENDOR | DEVREQ), 0, 0, 0, 0, HZ);	// allow 1 second timeout
+	pdx->ulSelfTestTime = jiffies + HZ * 30;	// 30 seconds into the future
+
+	mutex_unlock(&pdx->io_mutex);
+	if (nGot < 0)
+		dev_err(&pdx->interface->dev, "%s err=%d", __func__, nGot);
+	return nGot < 0 ? U14ERR_FAIL : U14ERR_NOERROR;
+}
+
+/****************************************************************************
+** CheckSelfTest
+**
+** Check progress of a self-test cycle
+****************************************************************************/
+int CheckSelfTest(DEVICE_EXTENSION * pdx, TGET_SELFTEST __user * pGST)
+{
+	unsigned int state, error;
+	int iReturn;
+	TGET_SELFTEST gst;	// local work space
+	memset(&gst, 0, sizeof(gst));	// clear out the space (sets code 0)
+
+	mutex_lock(&pdx->io_mutex);
+
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+	iReturn = Get1401State(pdx, &state, &error);
+	if (iReturn == U14ERR_NOERROR)	// Only accept zero if it happens twice
+		iReturn = Get1401State(pdx, &state, &error);
+
+	if (iReturn != U14ERR_NOERROR)	// Self-test can cause comms errors
+	{			// so we assume still testing
+		dev_err(&pdx->interface->dev,
+			"%s Get1401State=%d, assuming still testing", __func__,
+			iReturn);
+		state = 0x80;	// Force still-testing, no error
+		error = 0;
+		iReturn = U14ERR_NOERROR;
+	}
+
+	if ((state == -1) && (error == -1))	// If Get1401State had problems
+	{
+		dev_err(&pdx->interface->dev,
+			"%s Get1401State failed, assuming still testing",
+			__func__);
+		state = 0x80;	// Force still-testing, no error
+		error = 0;
+	}
+
+	if ((state & 0xFF) == 0x80)	// If we are still in self-test
+	{
+		if (state & 0x00FF0000)	// Have we got an error?
+		{
+			gst.code = (state & 0x00FF0000) >> 16;	// read the error code
+			gst.x = error & 0x0000FFFF;	// Error data X
+			gst.y = (error & 0xFFFF0000) >> 16;	// and data Y
+			dev_dbg(&pdx->interface->dev, "Self-test error code %d",
+				gst.code);
+		} else		// No error, check for timeout
+		{
+			unsigned long ulNow = jiffies;	// get current time
+			if (time_after(ulNow, pdx->ulSelfTestTime)) {
+				gst.code = -2;	// Flag the timeout
+				dev_dbg(&pdx->interface->dev,
+					"Self-test timed-out");
+			} else
+				dev_dbg(&pdx->interface->dev,
+					"Self-test on-going");
+		}
+	} else {
+		gst.code = -1;	// Flag the test is done
+		dev_dbg(&pdx->interface->dev, "Self-test done");
+	}
+
+	if (gst.code < 0)	// If we have a problem or finished
+	{			// If using the 2890 we should reset properly
+		if ((pdx->nPipes == 4) && (pdx->s1401Type <= TYPEPOWER))
+			Is1401(pdx);	// Get 1401 reset and OK
+		else
+			QuickCheck(pdx, true, true);	// Otherwise check without reset unless problems
+	}
+	mutex_unlock(&pdx->io_mutex);
+
+	if (copy_to_user(pGST, &gst, sizeof(gst)))
+		return -EFAULT;
+
+	return iReturn;
+}
+
+/****************************************************************************
+** TypeOf1401
+**
+** Returns code for standard, plus, micro1401, power1401 or none
+****************************************************************************/
+int TypeOf1401(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = TYPEUNKNOWN;
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	switch (pdx->s1401Type) {
+	case TYPE1401:
+		iReturn = U14ERR_STD;
+		break;		// Handle these types directly
+	case TYPEPLUS:
+		iReturn = U14ERR_PLUS;
+		break;
+	case TYPEU1401:
+		iReturn = U14ERR_U1401;
+		break;
+	default:
+		if ((pdx->s1401Type >= TYPEPOWER) && (pdx->s1401Type <= 25))
+			iReturn = pdx->s1401Type + 4;	// We can calculate types
+		else		//  for up-coming 1401 designs
+			iReturn = TYPEUNKNOWN;	// Don't know or not there
+	}
+	dev_dbg(&pdx->interface->dev, "%s %d", __func__, iReturn);
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** TransferFlags
+**
+** Returns flags on block transfer abilities
+****************************************************************************/
+int TransferFlags(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = U14TF_MULTIA | U14TF_DIAG |	// we always have multiple DMA area
+	    U14TF_NOTIFY | U14TF_CIRCTH;	// diagnostics, notify and circular
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+	mutex_lock(&pdx->io_mutex);
+	if (pdx->bIsUSB2)	// Set flag for USB2 if appropriate
+		iReturn |= U14TF_USB2;
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/***************************************************************************
+** DbgCmd1401
+** Issues a debug\diagnostic command to the 1401 along with a 32-bit datum
+** This is a utility command used for dbg operations.
+*/
+static int DbgCmd1401(DEVICE_EXTENSION * pdx, unsigned char cmd,
+		      unsigned int data)
+{
+	int iReturn;
+	dev_dbg(&pdx->interface->dev, "%s entry", __func__);
+	iReturn = usb_control_msg(pdx->udev, usb_sndctrlpipe(pdx->udev, 0), cmd, (H_TO_D | VENDOR | DEVREQ), (unsigned short)data, (unsigned short)(data >> 16), 0, 0, HZ);	// allow 1 second timeout
+	if (iReturn < 0)
+		dev_err(&pdx->interface->dev, "%s fail code=%d", __func__,
+			iReturn);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** DbgPeek
+**
+** Execute the diagnostic peek operation. Uses address, width and repeats.
+****************************************************************************/
+int DbgPeek(DEVICE_EXTENSION * pdx, TDBGBLOCK __user * pDB)
+{
+	int iReturn;
+	TDBGBLOCK db;
+
+	if (copy_from_user(&db, pDB, sizeof(db)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s @ %08x", __func__, db.iAddr);
+
+	iReturn = DbgCmd1401(pdx, DB_SETADD, db.iAddr);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_WIDTH, db.iWidth);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_REPEATS, db.iRepeats);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_PEEK, 0);
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** DbgPoke
+**
+** Execute the diagnostic poke operation. Parameters are in the CSBLOCK struct
+** in order address, size, repeats and value to poke.
+****************************************************************************/
+int DbgPoke(DEVICE_EXTENSION * pdx, TDBGBLOCK __user * pDB)
+{
+	int iReturn;
+	TDBGBLOCK db;
+
+	if (copy_from_user(&db, pDB, sizeof(db)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s @ %08x", __func__, db.iAddr);
+
+	iReturn = DbgCmd1401(pdx, DB_SETADD, db.iAddr);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_WIDTH, db.iWidth);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_REPEATS, db.iRepeats);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_POKE, db.iData);
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** DbgRampData
+**
+** Execute the diagnostic ramp data operation. Parameters are in the CSBLOCK struct
+** in order address, default, enable mask, size and repeats.
+****************************************************************************/
+int DbgRampData(DEVICE_EXTENSION * pdx, TDBGBLOCK __user * pDB)
+{
+	int iReturn;
+	TDBGBLOCK db;
+
+	if (copy_from_user(&db, pDB, sizeof(db)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s @ %08x", __func__, db.iAddr);
+
+	iReturn = DbgCmd1401(pdx, DB_SETADD, db.iAddr);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_SETDEF, db.iDefault);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_SETMASK, db.iMask);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_WIDTH, db.iWidth);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_REPEATS, db.iRepeats);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_RAMPD, 0);
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** DbgRampAddr
+**
+** Execute the diagnostic ramp address operation
+****************************************************************************/
+int DbgRampAddr(DEVICE_EXTENSION * pdx, TDBGBLOCK __user * pDB)
+{
+	int iReturn;
+	TDBGBLOCK db;
+
+	if (copy_from_user(&db, pDB, sizeof(db)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	iReturn = DbgCmd1401(pdx, DB_SETDEF, db.iDefault);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_SETMASK, db.iMask);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_WIDTH, db.iWidth);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_REPEATS, db.iRepeats);
+	if (iReturn == U14ERR_NOERROR)
+		iReturn = DbgCmd1401(pdx, DB_RAMPA, 0);
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** DbgGetData
+**
+** Retrieve the data resulting from the last debug Peek operation
+****************************************************************************/
+int DbgGetData(DEVICE_EXTENSION * pdx, TDBGBLOCK __user * pDB)
+{
+	int iReturn;
+	TDBGBLOCK db;
+	memset(&db, 0, sizeof(db));	// fill returned block with 0s
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	// Read back the last peeked value from the 1401.
+	iReturn = usb_control_msg(pdx->udev, usb_rcvctrlpipe(pdx->udev, 0),
+				  DB_DATA, (D_TO_H | VENDOR | DEVREQ), 0, 0,
+				  &db.iData, sizeof(db.iData), HZ);
+	if (iReturn == sizeof(db.iData)) {
+		if (copy_to_user(pDB, &db, sizeof(db)))
+			iReturn = -EFAULT;
+		else
+			iReturn = U14ERR_NOERROR;
+	} else
+		dev_err(&pdx->interface->dev, "%s failed, code %d", __func__,
+			iReturn);
+
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** DbgStopLoop
+**
+** Stop any never-ending debug loop, we just call Get1401State for USB
+**
+****************************************************************************/
+int DbgStopLoop(DEVICE_EXTENSION * pdx)
+{
+	int iReturn;
+	unsigned int uState, uErr;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+	iReturn = Get1401State(pdx, &uState, &uErr);
+	mutex_unlock(&pdx->io_mutex);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** SetCircular
+**
+** Sets up a transfer area record for circular transfers. If the area is
+** already set, we attempt to unset it. Unsetting will fail if the area is
+** booked and a transfer to that area is in progress. Otherwise, we will
+** release the area and re-assign it.
+****************************************************************************/
+int SetCircular(DEVICE_EXTENSION * pdx, TRANSFERDESC __user * pTD)
+{
+	int iReturn;
+	bool bToHost;
+	TRANSFERDESC td;
+
+	if (copy_from_user(&td, pTD, sizeof(td)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s area:%d, size:%08x", __func__,
+		td.wAreaNum, td.dwLength);
+	bToHost = td.eSize != 0;	// this is used as the tohost flag
+
+	// The strange cast is done so that we don't get warnings in 32-bit linux about the size of the
+	// pointer. The pointer is always passed as a 64-bit object so that we don't have problems using
+	// a 32-bit program on a 64-bit system. unsigned long is 64-bits on a 64-bit system.
+	iReturn =
+	    SetArea(pdx, td.wAreaNum,
+		    (char __user *)((unsigned long)td.lpvBuff), td.dwLength,
+		    true, bToHost);
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
+
+/****************************************************************************
+** GetCircBlock
+**
+** Return the next available block of circularly-transferred data.
+****************************************************************************/
+int GetCircBlock(DEVICE_EXTENSION * pdx, TCIRCBLOCK __user * pCB)
+{
+	int iReturn = U14ERR_NOERROR;
+	unsigned int nArea;
+	TCIRCBLOCK cb;
+
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	if (copy_from_user(&cb, pCB, sizeof(cb)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+
+	nArea = cb.nArea;	// Retrieve parameters first
+	cb.dwOffset = 0;	// set default result (nothing)
+	cb.dwSize = 0;
+
+	if (nArea < MAX_TRANSAREAS)	// The area number must be OK
+	{
+		TRANSAREA *pArea = &pdx->rTransDef[nArea];	// Pointer to relevant info
+		spin_lock_irq(&pdx->stagedLock);	// Lock others out
+
+		if ((pArea->bUsed) && (pArea->bCircular) &&	// Must be circular area
+		    (pArea->bCircToHost))	// For now at least must be to host
+		{
+			if (pArea->aBlocks[0].dwSize > 0)	// Got anything?
+			{
+				cb.dwOffset = pArea->aBlocks[0].dwOffset;
+				cb.dwSize = pArea->aBlocks[0].dwSize;
+				dev_dbg(&pdx->interface->dev,
+					"%s return block 0: %d bytes at %d",
+					__func__, cb.dwSize, cb.dwOffset);
+			}
+		} else
+			iReturn = U14ERR_NOTSET;
+
+		spin_unlock_irq(&pdx->stagedLock);
+	} else
+		iReturn = U14ERR_BADAREA;
+
+	if (copy_to_user(pCB, &cb, sizeof(cb)))
+		iReturn = -EFAULT;
+
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
+
+/****************************************************************************
+** FreeCircBlock
+**
+** Frees a block of circularly-transferred data and returns the next one.
+****************************************************************************/
+int FreeCircBlock(DEVICE_EXTENSION * pdx, TCIRCBLOCK __user * pCB)
+{
+	int iReturn = U14ERR_NOERROR;
+	unsigned int nArea, uStart, uSize;
+	TCIRCBLOCK cb;
+
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	if (copy_from_user(&cb, pCB, sizeof(cb)))
+		return -EFAULT;
+
+	mutex_lock(&pdx->io_mutex);
+
+	nArea = cb.nArea;	// Retrieve parameters first
+	uStart = cb.dwOffset;
+	uSize = cb.dwSize;
+	cb.dwOffset = 0;	// then set default result (nothing)
+	cb.dwSize = 0;
+
+	if (nArea < MAX_TRANSAREAS)	// The area number must be OK
+	{
+		TRANSAREA *pArea = &pdx->rTransDef[nArea];	// Pointer to relevant info
+		spin_lock_irq(&pdx->stagedLock);	// Lock others out
+
+		if ((pArea->bUsed) && (pArea->bCircular) &&	// Must be circular area
+		    (pArea->bCircToHost))	// For now at least must be to host
+		{
+			bool bWaiting = false;
+
+			if ((pArea->aBlocks[0].dwSize >= uSize) &&	// Got anything?
+			    (pArea->aBlocks[0].dwOffset == uStart))	// Must be legal data
+			{
+				pArea->aBlocks[0].dwSize -= uSize;
+				pArea->aBlocks[0].dwOffset += uSize;
+				if (pArea->aBlocks[0].dwSize == 0)	// Have we emptied this block?
+				{
+					if (pArea->aBlocks[1].dwSize)	// Is there a second block?
+					{
+						pArea->aBlocks[0] = pArea->aBlocks[1];	// Copy down block 2 data
+						pArea->aBlocks[1].dwSize = 0;	// and mark the second block as unused
+						pArea->aBlocks[1].dwOffset = 0;
+					} else
+						pArea->aBlocks[0].dwOffset = 0;
+				}
+
+				dev_dbg(&pdx->interface->dev,
+					"%s free %d bytes at %d, return %d bytes at %d, wait=%d",
+					__func__, uSize, uStart,
+					pArea->aBlocks[0].dwSize,
+					pArea->aBlocks[0].dwOffset,
+					pdx->bXFerWaiting);
+
+				// Return the next available block of memory as well
+				if (pArea->aBlocks[0].dwSize > 0)	// Got anything?
+				{
+					cb.dwOffset =
+					    pArea->aBlocks[0].dwOffset;
+					cb.dwSize = pArea->aBlocks[0].dwSize;
+				}
+
+				bWaiting = pdx->bXFerWaiting;
+				if (bWaiting && pdx->bStagedUrbPending) {
+					dev_err(&pdx->interface->dev,
+						"%s ERROR: waiting xfer and staged Urb pending!",
+						__func__);
+					bWaiting = false;
+				}
+			} else {
+				dev_err(&pdx->interface->dev,
+					"%s ERROR: freeing %d bytes at %d, block 0 is %d bytes at %d",
+					__func__, uSize, uStart,
+					pArea->aBlocks[0].dwSize,
+					pArea->aBlocks[0].dwOffset);
+				iReturn = U14ERR_NOMEMORY;
+			}
+
+			// If we have one, kick off pending transfer
+			if (bWaiting)	// Got a block xfer waiting?
+			{
+				int RWMStat =
+				    ReadWriteMem(pdx, !pdx->rDMAInfo.bOutWard,
+						 pdx->rDMAInfo.wIdent,
+						 pdx->rDMAInfo.dwOffset,
+						 pdx->rDMAInfo.dwSize);
+				if (RWMStat != U14ERR_NOERROR)
+					dev_err(&pdx->interface->dev,
+						"%s rw setup failed %d",
+						__func__, RWMStat);
+			}
+		} else
+			iReturn = U14ERR_NOTSET;
+
+		spin_unlock_irq(&pdx->stagedLock);
+	} else
+		iReturn = U14ERR_BADAREA;
+
+	if (copy_to_user(pCB, &cb, sizeof(cb)))
+		return -EFAULT;
+
+	mutex_unlock(&pdx->io_mutex);
+	return iReturn;
+}
diff --git a/drivers/staging/ced1401/ced_ioctl.h b/drivers/staging/ced1401/ced_ioctl.h
new file mode 100644
index 00000000000..0895c9414b4
--- /dev/null
+++ b/drivers/staging/ced1401/ced_ioctl.h
@@ -0,0 +1,345 @@
+/*
+ * IOCTL calls for the CED1401 driver
+ * Copyright (C) 2010 Cambridge Electronic Design Ltd
+ * Author Greg P Smith (greg@ced.co.uk)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef __CED_IOCTL_H__
+#define __CED_IOCTL_H__
+
+#include <linux/ioctl.h>
+
+/* dma modes, only MODE_CHAR and MODE_LINEAR are used in this driver */
+#define MODE_CHAR		0
+#define MODE_LINEAR		1
+
+/****************************************************************************
+** TypeDefs
+*****************************************************************************/
+
+typedef unsigned short TBLOCKENTRY;	/* index the blk transfer table 0-7 */
+
+typedef struct TransferDesc {
+	long long lpvBuff;	/* address of transfer area (for 64 or 32 bit) */
+	unsigned int dwLength;	/* length of the area */
+	TBLOCKENTRY wAreaNum;	/* number of transfer area to set up */
+	short eSize;		/* element size - is tohost flag for circular */
+} TRANSFERDESC;
+
+typedef TRANSFERDESC * LPTRANSFERDESC;
+
+typedef struct TransferEvent {
+	unsigned int dwStart;		/* offset into the area */
+	unsigned int dwLength;		/* length of the region */
+	unsigned short wAreaNum;	/* the area number */
+	unsigned short wFlags;		/* bit 0 set for toHost */
+	int iSetEvent;			/* could be dummy in LINUX */
+} TRANSFEREVENT;
+
+#define MAX_TRANSFER_SIZE	0x4000		/* Maximum data bytes per IRP */
+#define MAX_AREA_LENGTH		0x100000	/* Maximum size of transfer area */
+#define MAX_TRANSAREAS		8		/* definitions for dma set up  */
+
+typedef struct TGetSelfTest {
+	int code;			/* self-test error code */
+	int x, y;			/* additional information */
+} TGET_SELFTEST;
+
+/* Debug block used for several commands. Not all fields are used for all commands. */
+typedef struct TDbgBlock {
+	int iAddr;			/* the address in the 1401 */
+	int iRepeats;			/* number of repeats */
+	int iWidth;			/* width in bytes 1, 2, 4 */
+	int iDefault;			/* default value */
+	int iMask;			/* mask to apply */
+	int iData;			/* data for poke, result for peek */
+} TDBGBLOCK;
+
+/* Used to collect information about a circular block from the device driver */
+typedef struct TCircBlock {
+	unsigned int nArea;		/* the area to collect information from */
+	unsigned int dwOffset;		/* offset into the area to the available block */
+	unsigned int dwSize;		/* size of the area */
+} TCIRCBLOCK;
+
+/* Used to clollect the 1401 status */
+typedef struct TCSBlock {
+	unsigned int uiState;
+	unsigned int uiError;
+} TCSBLOCK;
+
+/*
+ * As seen by the user, an ioctl call looks like: int ioctl(int fd, unsigned
+ * long cmd, char* argp); We will then have all sorts of variants on this that
+ * can be used to pass stuff to our driver. We will generate macros for each
+ * type of call so as to provide some sort of type safety in the calling:
+ */
+#define CED_MAGIC_IOC 0xce
+
+/* NBNB: READ and WRITE are from the point of view of the device, not user. */
+typedef struct ced_ioc_string {
+	int nChars;
+	char buffer[256];
+} CED_IOC_STRING;
+
+#define IOCTL_CED_SENDSTRING(n)		_IOC(_IOC_WRITE, CED_MAGIC_IOC, 2, n)
+
+#define IOCTL_CED_RESET1401		_IO(CED_MAGIC_IOC, 3)
+#define IOCTL_CED_GETCHAR		_IO(CED_MAGIC_IOC, 4)
+#define IOCTL_CED_SENDCHAR		_IO(CED_MAGIC_IOC, 5)
+#define IOCTL_CED_STAT1401		_IO(CED_MAGIC_IOC, 6)
+#define IOCTL_CED_LINECOUNT		_IO(CED_MAGIC_IOC, 7)
+#define IOCTL_CED_GETSTRING(nMax)	_IOC(_IOC_READ, CED_MAGIC_IOC, 8, nMax)
+
+#define IOCTL_CED_SETTRANSFER		_IOW(CED_MAGIC_IOC, 11, TRANSFERDESC)
+#define IOCTL_CED_UNSETTRANSFER		_IO(CED_MAGIC_IOC, 12)
+#define IOCTL_CED_SETEVENT		_IOW(CED_MAGIC_IOC, 13, TRANSFEREVENT)
+#define IOCTL_CED_GETOUTBUFSPACE	_IO(CED_MAGIC_IOC, 14)
+#define IOCTL_CED_GETBASEADDRESS	_IO(CED_MAGIC_IOC, 15)
+#define IOCTL_CED_GETDRIVERREVISION	_IO(CED_MAGIC_IOC, 16)
+
+#define IOCTL_CED_GETTRANSFER		_IOR(CED_MAGIC_IOC, 17, TGET_TX_BLOCK)
+#define IOCTL_CED_KILLIO1401		_IO(CED_MAGIC_IOC, 18)
+#define IOCTL_CED_BLKTRANSSTATE		_IO(CED_MAGIC_IOC, 19)
+
+#define IOCTL_CED_STATEOF1401		_IO(CED_MAGIC_IOC, 23)
+#define IOCTL_CED_GRAB1401		_IO(CED_MAGIC_IOC, 25)
+#define IOCTL_CED_FREE1401		_IO(CED_MAGIC_IOC, 26)
+#define IOCTL_CED_STARTSELFTEST		_IO(CED_MAGIC_IOC, 31)
+#define IOCTL_CED_CHECKSELFTEST		_IOR(CED_MAGIC_IOC, 32, TGET_SELFTEST)
+#define IOCTL_CED_TYPEOF1401		_IO(CED_MAGIC_IOC, 33)
+#define IOCTL_CED_TRANSFERFLAGS		_IO(CED_MAGIC_IOC, 34)
+
+#define IOCTL_CED_DBGPEEK		_IOW(CED_MAGIC_IOC, 35, TDBGBLOCK)
+#define IOCTL_CED_DBGPOKE		_IOW(CED_MAGIC_IOC, 36, TDBGBLOCK)
+#define IOCTL_CED_DBGRAMPDATA		_IOW(CED_MAGIC_IOC, 37, TDBGBLOCK)
+#define IOCTL_CED_DBGRAMPADDR		_IOW(CED_MAGIC_IOC, 38, TDBGBLOCK)
+#define IOCTL_CED_DBGGETDATA		_IOR(CED_MAGIC_IOC, 39, TDBGBLOCK)
+#define IOCTL_CED_DBGSTOPLOOP		_IO(CED_MAGIC_IOC, 40)
+#define IOCTL_CED_FULLRESET		_IO(CED_MAGIC_IOC, 41)
+#define IOCTL_CED_SETCIRCULAR		_IOW(CED_MAGIC_IOC, 42, TRANSFERDESC)
+#define IOCTL_CED_GETCIRCBLOCK		_IOWR(CED_MAGIC_IOC, 43, TCIRCBLOCK)
+#define IOCTL_CED_FREECIRCBLOCK		_IOWR(CED_MAGIC_IOC, 44, TCIRCBLOCK)
+#define IOCTL_CED_WAITEVENT		_IO(CED_MAGIC_IOC, 45)
+#define IOCTL_CED_TESTEVENT		_IO(CED_MAGIC_IOC, 46)
+
+#ifndef __KERNEL__
+/*
+ * If nothing said about return value, it is a U14ERR_... error code
+ * (U14ERR_NOERROR for none)
+ */
+inline int CED_SendString(int fh, const char *szText, int n)
+{
+	return ioctl(fh, IOCTL_CED_SENDSTRING(n), szText);
+}
+
+inline int CED_Reset1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_RESET1401);
+}
+
+/* Return the singe character or a -ve error code. */
+inline int CED_GetChar(int fh)
+{
+	return ioctl(fh, IOCTL_CED_GETCHAR);
+}
+
+/* Return character count in input buffer */
+inline int CED_Stat1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_STAT1401);
+}
+
+inline int CED_SendChar(int fh, char c)
+{
+	return ioctl(fh, IOCTL_CED_SENDCHAR, c);
+}
+
+inline int CED_LineCount(int fh)
+{
+	return ioctl(fh, IOCTL_CED_LINECOUNT);
+}
+
+/*
+ * return the count of characters returned. If the string was terminated by CR
+ * or 0, then the 0 is part of the count. Otherwise, we will add a zero if
+ * there is room, but it is not included in the count.  The return value is 0
+ * if there was nothing to read.
+ */
+inline int CED_GetString(int fh, char *szText, int nMax)
+{
+	return ioctl(fh, IOCTL_CED_GETSTRING(nMax), szText);
+}
+
+/* returns space in the output buffer. */
+inline int CED_GetOutBufSpace(int fh)
+{
+	return ioctl(fh, IOCTL_CED_GETOUTBUFSPACE);
+}
+
+/* This always returns -1 as not implemented. */
+inline int CED_GetBaseAddress(int fh)
+{
+	return ioctl(fh, IOCTL_CED_GETBASEADDRESS);
+}
+
+/* returns the major revision <<16 | minor revision. */
+inline int CED_GetDriverRevision(int fh)
+{
+	return ioctl(fh, IOCTL_CED_GETDRIVERREVISION);
+}
+
+inline int CED_SetTransfer(int fh, TRANSFERDESC *pTD)
+{
+	return ioctl(fh, IOCTL_CED_SETTRANSFER, pTD);
+}
+
+inline int CED_UnsetTransfer(int fh, int nArea)
+{
+	return ioctl(fh, IOCTL_CED_UNSETTRANSFER, nArea);
+}
+
+inline int CED_SetEvent(int fh, TRANSFEREVENT *pTE)
+{
+	return ioctl(fh, IOCTL_CED_SETEVENT, pTE);
+}
+
+inline int CED_GetTransfer(int fh, TGET_TX_BLOCK *pTX)
+{
+	return ioctl(fh, IOCTL_CED_GETTRANSFER, pTX);
+}
+
+inline int CED_KillIO1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_KILLIO1401);
+}
+
+/* returns 0 if no active DMA, 1 if active */
+inline int CED_BlkTransState(int fh)
+{
+	return ioctl(fh, IOCTL_CED_BLKTRANSSTATE);
+}
+
+inline int CED_StateOf1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_STATEOF1401);
+}
+
+inline int CED_Grab1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_GRAB1401);
+}
+
+inline int CED_Free1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_FREE1401);
+}
+
+inline int CED_StartSelfTest(int fh)
+{
+	return ioctl(fh, IOCTL_CED_STARTSELFTEST);
+}
+
+inline int CED_CheckSelfTest(int fh, TGET_SELFTEST *pGST)
+{
+	return ioctl(fh, IOCTL_CED_CHECKSELFTEST, pGST);
+}
+
+inline int CED_TypeOf1401(int fh)
+{
+	return ioctl(fh, IOCTL_CED_TYPEOF1401);
+}
+
+inline int CED_TransferFlags(int fh)
+{
+	return ioctl(fh, IOCTL_CED_TRANSFERFLAGS);
+}
+
+inline int CED_DbgPeek(int fh, TDBGBLOCK *pDB)
+{
+	return ioctl(fh, IOCTL_CED_DBGPEEK, pDB);
+}
+
+inline int CED_DbgPoke(int fh, TDBGBLOCK *pDB)
+{
+	return ioctl(fh, IOCTL_CED_DBGPOKE, pDB);
+}
+
+inline int CED_DbgRampData(int fh, TDBGBLOCK *pDB)
+{
+	return ioctl(fh, IOCTL_CED_DBGRAMPDATA, pDB);
+}
+
+inline int CED_DbgRampAddr(int fh, TDBGBLOCK *pDB)
+{
+	return ioctl(fh, IOCTL_CED_DBGRAMPADDR, pDB);
+}
+
+inline int CED_DbgGetData(int fh, TDBGBLOCK *pDB)
+{
+	return ioctl(fh, IOCTL_CED_DBGGETDATA, pDB);
+}
+
+inline int CED_DbgStopLoop(int fh)
+{
+	return ioctl(fh, IOCTL_CED_DBGSTOPLOOP);
+}
+
+inline int CED_FullReset(int fh)
+{
+	return ioctl(fh, IOCTL_CED_FULLRESET);
+}
+
+inline int CED_SetCircular(int fh, TRANSFERDESC *pTD)
+{
+	return ioctl(fh, IOCTL_CED_SETCIRCULAR, pTD);
+}
+
+inline int CED_GetCircBlock(int fh, TCIRCBLOCK *pCB)
+{
+	return ioctl(fh, IOCTL_CED_GETCIRCBLOCK, pCB);
+}
+
+inline int CED_FreeCircBlock(int fh, TCIRCBLOCK *pCB)
+{
+	return ioctl(fh, IOCTL_CED_FREECIRCBLOCK, pCB);
+}
+
+inline int CED_WaitEvent(int fh, int nArea, int msTimeOut)
+{
+	return ioctl(fh, IOCTL_CED_WAITEVENT, (nArea & 0xff)|(msTimeOut << 8));
+}
+
+inline int CED_TestEvent(int fh, int nArea)
+{
+	return ioctl(fh, IOCTL_CED_TESTEVENT, nArea);
+}
+#endif
+
+#ifdef NOTWANTEDYET
+#define IOCTL_CED_REGCALLBACK		_IO(CED_MAGIC_IOC, 9)	/* Not used */
+#define IOCTL_CED_GETMONITORBUF		_IO(CED_MAGIC_IOC, 10)	/* Not used */
+
+#define IOCTL_CED_BYTECOUNT		_IO(CED_MAGIC_IOC, 20)	/* Not used */
+#define IOCTL_CED_ZEROBLOCKCOUNT	_IO(CED_MAGIC_IOC, 21)	/* Not used */
+#define IOCTL_CED_STOPCIRCULAR		_IO(CED_MAGIC_IOC, 22)	/* Not used */
+
+#define IOCTL_CED_REGISTERS1401		_IO(CED_MAGIC_IOC, 24)	/* Not used */
+#define IOCTL_CED_STEP1401		_IO(CED_MAGIC_IOC, 27)	/* Not used */
+#define IOCTL_CED_SET1401REGISTERS	_IO(CED_MAGIC_IOC, 28)	/* Not used */
+#define IOCTL_CED_STEPTILL1401		_IO(CED_MAGIC_IOC, 29)	/* Not used */
+#define IOCTL_CED_SETORIN		_IO(CED_MAGIC_IOC, 30)	/* Not used */
+
+#endif
+
+/* __CED_IOCTL_H__ */
+#endif
diff --git a/drivers/staging/ced1401/machine.h b/drivers/staging/ced1401/machine.h
new file mode 100644
index 00000000000..af073790b94
--- /dev/null
+++ b/drivers/staging/ced1401/machine.h
@@ -0,0 +1,127 @@
+/*****************************************************************************
+**
+** machine.h
+**
+** Copyright (c) Cambridge Electronic Design Limited 1991,1992,2010
+**
+** This program is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License
+** as published by the Free Software Foundation; either version 2
+** of the License, or (at your option) any later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**
+** Contact CED: Cambridge Electronic Design Limited, Science Park, Milton Road
+**              Cambridge, CB6 0FE.
+**              www.ced.co.uk
+**              greg@ced.co.uk
+**
+** This file is included at the start of 'C' or 'C++' source file to define
+** things for cross-platform/compiler interoperability. This used to deal with
+** MSDOS/16-bit stuff, but this was all removed in Decemeber 2010. There are
+** three things to consider: Windows, LINUX, mac OSX (BSD Unix) and 32 vs 64
+** bit. At the time of writing (DEC 2010) there is a consensus on the following
+** and their unsigned equivalents:
+**
+** type       bits
+** char         8
+** short       16
+** int         32
+** long long   64
+**
+** long is a problem as it is always 64 bits on linux/unix and is always 32 bits
+** on windows.
+** On windows, we define _IS_WINDOWS_ and one of WIN32 or WIN64.
+** On linux we define LINUX
+** On Max OSX we define MACOSX
+**
+*/
+
+#ifndef __MACHINE_H__
+#define __MACHINE_H__
+#ifndef __KERNEL__
+#include <float.h>
+#include <limits.h>
+#endif
+
+/*
+** The initial section is to identify the operating system
+*/
+#if (defined(__linux__) || defined(_linux) || defined(__linux)) && !defined(LINUX)
+#define LINUX 1
+#endif
+
+#if (defined(__WIN32__) || defined(_WIN32)) && !defined(WIN32)
+#define WIN32 1
+#endif
+
+#if defined(__APPLE__)
+#define MACOSX
+#endif
+
+#if defined(_WIN64)
+#undef WIN32
+#undef WIN64
+#define WIN64 1
+#endif
+
+#if defined(WIN32) || defined(WIN64)
+#define _IS_WINDOWS_ 1
+#endif
+
+#if defined(LINUX) || defined(MAXOSX)
+    #define FAR
+
+    typedef int BOOL;       // To match Windows
+    typedef char * LPSTR;
+    typedef const char * LPCSTR;
+    typedef unsigned short WORD;
+    typedef unsigned int  DWORD;
+    typedef unsigned char  BYTE;
+    typedef BYTE  BOOLEAN;
+    typedef unsigned char UCHAR;
+    #define __packed __attribute__((packed))
+    typedef BYTE * LPBYTE;
+    #define HIWORD(x) (WORD)(((x)>>16) & 0xffff)
+    #define LOWORD(x) (WORD)((x) & 0xffff)
+#endif
+
+#ifdef _IS_WINDOWS_
+#include <windows.h>
+#define __packed
+#endif
+
+/*
+** Sort out the DllExport and DllImport macros. The GCC compiler has its own
+** syntax for this, though it also supports the MS specific __declspec() as
+** a synonym.
+*/
+#ifdef GNUC
+    #define DllExport __attribute__((dllexport))
+    #define DllImport __attribute__((dllimport))
+#endif
+
+#ifndef DllExport
+#ifdef _IS_WINDOWS_
+    #define DllExport __declspec(dllexport)
+    #define DllImport __declspec(dllimport)
+#else
+    #define DllExport
+    #define DllImport
+#endif
+#endif /* _IS_WINDOWS_ */
+
+    
+#ifndef TRUE
+   #define TRUE 1
+   #define FALSE 0
+#endif
+
+#endif
diff --git a/drivers/staging/ced1401/usb1401.c b/drivers/staging/ced1401/usb1401.c
new file mode 100644
index 00000000000..6ba0ef65256
--- /dev/null
+++ b/drivers/staging/ced1401/usb1401.c
@@ -0,0 +1,1637 @@
+/***********************************************************************************
+ CED1401 usb driver. This basic loading is based on the usb-skeleton.c code that is:
+ Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ Copyright (C) 2012 Alois Schloegl <alois.schloegl@ist.ac.at>
+ There is not a great deal of the skeleton left.
+
+ All the remainder dealing specifically with the CED1401 is based on drivers written
+ by CED for other systems (mainly Windows) and is:
+ Copyright (C) 2010 Cambridge Electronic Design Ltd
+ Author Greg P Smith (greg@ced.co.uk)
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+Endpoints
+*********
+There are 4 endpoints plus the control endpoint in the standard interface
+provided by most 1401s. The control endpoint is used for standard USB requests,
+plus various CED-specific transactions such as start self test, debug and get
+the 1401 status. The other endpoints are:
+
+ 1 Characters to the 1401
+ 2 Characters from the 1401
+ 3 Block data to the 1401
+ 4 Block data to the host.
+
+inside the driver these are indexed as an array from 0 to 3, transactions
+over the control endpoint are carried out using a separate mechanism. The
+use of the endpoints is mostly straightforward, with the driver issuing
+IO request packets (IRPs) as required to transfer data to and from the 1401.
+The handling of endpoint 2 is different because it is used for characters
+from the 1401, which can appear spontaneously and without any other driver
+activity - for example to repeatedly request DMA transfers in Spike2. The
+desired effect is achieved by using an interrupt endpoint which can be
+polled to see if it has data available, and writing the driver so that it
+always maintains a pending read IRP from that endpoint which will read the
+character data and terminate as soon as the 1401 makes data available. This
+works very well, some care is taken with when you kick off this character
+read IRP to avoid it being active when it is not wanted but generally it
+is running all the time.
+
+In the 2270, there are only three endpoints plus the control endpoint. In
+addition to the transactions mentioned above, the control endpoint is used
+to transfer character data to the 1401. The other endpoints are used as:
+
+ 1 Characters from the 1401
+ 2 Block data to the 1401
+ 3 Block data to the host.
+
+The type of interface available is specified by the interface subclass field
+in the interface descriptor provided by the 1401. See the USB_INT_ constants
+for the values that this field can hold.
+
+****************************************************************************
+Linux implementation
+
+Although Linux Device Drivers (3rd Edition) was a major source of information,
+it is very out of date. A lot of information was gleaned from the latest
+usb_skeleton.c code (you need to download the kernel sources to get this).
+
+To match the Windows version, everything is done using ioctl calls. All the
+device state is held in the DEVICE_EXTENSION (named to match Windows use).
+Block transfers are done by using get_user_pages() to pin down a list of
+pages that we hold a pointer to in the device driver. We also allocate a
+coherent transfer buffer of size STAGED_SZ (this must be a multiple of the
+bulk endpoint size so that the 1401 does not realise that we break large
+transfers down into smaller pieces). We use kmap_atomic() to get a kernel
+va for each page, as it is required, for copying; see CopyUserSpace().
+
+All character and data transfers are done using asynchronous IO. All Urbs are
+tracked by anchoring them. Status and debug ioctls are implemented with the
+synchronous non-Urb based transfers.
+*/
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/usb.h>
+#include <linux/mutex.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/version.h>
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35) )
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kref.h>
+#include <linux/uaccess.h>
+#endif
+
+#include "usb1401.h"
+
+/* Define these values to match your devices */
+#define USB_CED_VENDOR_ID	0x0525
+#define USB_CED_PRODUCT_ID	0xa0f0
+
+/* table of devices that work with this driver */
+static const struct usb_device_id ced_table[] = {
+	{USB_DEVICE(USB_CED_VENDOR_ID, USB_CED_PRODUCT_ID)},
+	{}			/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, ced_table);
+
+/* Get a minor range for your devices from the usb maintainer */
+#define USB_CED_MINOR_BASE	192
+
+/* our private defines. if this grows any larger, use your own .h file */
+#define MAX_TRANSFER		(PAGE_SIZE - 512)
+/* MAX_TRANSFER is chosen so that the VM is not stressed by
+   allocations > PAGE_SIZE and the number of packets in a page
+   is an integer 512 is the largest possible packet on EHCI */
+#define WRITES_IN_FLIGHT	8
+/* arbitrarily chosen */
+
+/* 
+The cause for these errors is that the driver makes use of the functions usb_buffer_alloc() and usb_buffer_free() which got renamed in kernel 2.6.35. This is stated in the Changelog:   USB: rename usb_buffer_alloc() and usb_buffer_free() users
+    For more clearance what the functions actually do,
+      usb_buffer_alloc() is renamed to usb_alloc_coherent()
+      usb_buffer_free()  is renamed to usb_free_coherent()
+   This is needed on Debian 2.6.32-5-amd64
+*/
+#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) )
+#define usb_alloc_coherent usb_buffer_alloc
+#define usb_free_coherent  usb_buffer_free
+#define noop_llseek NULL
+#endif
+
+static struct usb_driver ced_driver;
+
+static void ced_delete(struct kref *kref)
+{
+	DEVICE_EXTENSION *pdx = to_DEVICE_EXTENSION(kref);
+
+	// Free up the output buffer, then free the output urb. Note that the interface member
+	// of pdx will probably be NULL, so cannot be used to get to dev.
+	usb_free_coherent(pdx->udev, OUTBUF_SZ, pdx->pCoherCharOut,
+			  pdx->pUrbCharOut->transfer_dma);
+	usb_free_urb(pdx->pUrbCharOut);
+
+	// Do the same for chan input
+	usb_free_coherent(pdx->udev, INBUF_SZ, pdx->pCoherCharIn,
+			  pdx->pUrbCharIn->transfer_dma);
+	usb_free_urb(pdx->pUrbCharIn);
+
+	// Do the same for the block transfers
+	usb_free_coherent(pdx->udev, STAGED_SZ, pdx->pCoherStagedIO,
+			  pdx->pStagedUrb->transfer_dma);
+	usb_free_urb(pdx->pStagedUrb);
+
+	usb_put_dev(pdx->udev);
+	kfree(pdx);
+}
+
+// This is the driver end of the open() call from user space.
+static int ced_open(struct inode *inode, struct file *file)
+{
+	DEVICE_EXTENSION *pdx;
+	int retval = 0;
+	int subminor = iminor(inode);
+	struct usb_interface *interface =
+	    usb_find_interface(&ced_driver, subminor);
+	if (!interface) {
+		pr_err("%s - error, can't find device for minor %d", __func__,
+		       subminor);
+		retval = -ENODEV;
+		goto exit;
+	}
+
+	pdx = usb_get_intfdata(interface);
+	if (!pdx) {
+		retval = -ENODEV;
+		goto exit;
+	}
+
+	dev_dbg(&interface->dev, "%s got pdx", __func__);
+
+	/* increment our usage count for the device */
+	kref_get(&pdx->kref);
+
+	/* lock the device to allow correctly handling errors
+	 * in resumption */
+	mutex_lock(&pdx->io_mutex);
+
+	if (!pdx->open_count++) {
+		retval = usb_autopm_get_interface(interface);
+		if (retval) {
+			pdx->open_count--;
+			mutex_unlock(&pdx->io_mutex);
+			kref_put(&pdx->kref, ced_delete);
+			goto exit;
+		}
+	} else {		//uncomment this block if you want exclusive open
+		dev_err(&interface->dev, "%s fail: already open", __func__);
+		retval = -EBUSY;
+		pdx->open_count--;
+		mutex_unlock(&pdx->io_mutex);
+		kref_put(&pdx->kref, ced_delete);
+		goto exit;
+	}
+	/* prevent the device from being autosuspended */
+
+	/* save our object in the file's private structure */
+	file->private_data = pdx;
+	mutex_unlock(&pdx->io_mutex);
+
+exit:
+	return retval;
+}
+
+static int ced_release(struct inode *inode, struct file *file)
+{
+	DEVICE_EXTENSION *pdx = file->private_data;
+	if (pdx == NULL)
+		return -ENODEV;
+
+	dev_dbg(&pdx->interface->dev, "%s called", __func__);
+	mutex_lock(&pdx->io_mutex);
+	if (!--pdx->open_count && pdx->interface)	// Allow autosuspend
+		usb_autopm_put_interface(pdx->interface);
+	mutex_unlock(&pdx->io_mutex);
+
+	kref_put(&pdx->kref, ced_delete);	// decrement the count on our device
+	return 0;
+}
+
+static int ced_flush(struct file *file, fl_owner_t id)
+{
+	int res;
+	DEVICE_EXTENSION *pdx = file->private_data;
+	if (pdx == NULL)
+		return -ENODEV;
+
+	dev_dbg(&pdx->interface->dev, "%s char in pend=%d", __func__,
+		pdx->bReadCharsPending);
+
+	/* wait for io to stop */
+	mutex_lock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s got io_mutex", __func__);
+	ced_draw_down(pdx);
+
+	/* read out errors, leave subsequent opens a clean slate */
+	spin_lock_irq(&pdx->err_lock);
+	res = pdx->errors ? (pdx->errors == -EPIPE ? -EPIPE : -EIO) : 0;
+	pdx->errors = 0;
+	spin_unlock_irq(&pdx->err_lock);
+
+	mutex_unlock(&pdx->io_mutex);
+	dev_dbg(&pdx->interface->dev, "%s exit reached", __func__);
+
+	return res;
+}
+
+/***************************************************************************
+** CanAcceptIoRequests
+** If the device is removed, interface is set NULL. We also clear our pointer
+** from the interface, so we should make sure that pdx is not NULL. This will
+** not help with a device extension held by a file.
+** return true if can accept new io requests, else false
+*/
+static bool CanAcceptIoRequests(DEVICE_EXTENSION * pdx)
+{
+	return pdx && pdx->interface;	// Can we accept IO requests
+}
+
+/****************************************************************************
+** Callback routine to complete writes. This may need to fire off another
+** urb to complete the transfer.
+****************************************************************************/
+static void ced_writechar_callback(struct urb *pUrb)
+{
+	DEVICE_EXTENSION *pdx = pUrb->context;
+	int nGot = pUrb->actual_length;	// what we transferred
+
+	if (pUrb->status) {	// sync/async unlink faults aren't errors
+		if (!
+		    (pUrb->status == -ENOENT || pUrb->status == -ECONNRESET
+		     || pUrb->status == -ESHUTDOWN)) {
+			dev_err(&pdx->interface->dev,
+				"%s - nonzero write bulk status received: %d",
+				__func__, pUrb->status);
+		}
+
+		spin_lock(&pdx->err_lock);
+		pdx->errors = pUrb->status;
+		spin_unlock(&pdx->err_lock);
+		nGot = 0;	//  and tidy up again if so
+
+		spin_lock(&pdx->charOutLock);	// already at irq level
+		pdx->dwOutBuffGet = 0;	// Reset the output buffer
+		pdx->dwOutBuffPut = 0;
+		pdx->dwNumOutput = 0;	// Clear the char count
+		pdx->bPipeError[0] = 1;	// Flag an error for later
+		pdx->bSendCharsPending = false;	// Allow other threads again
+		spin_unlock(&pdx->charOutLock);	// already at irq level
+		dev_dbg(&pdx->interface->dev,
+			"%s - char out done, 0 chars sent", __func__);
+	} else {
+		dev_dbg(&pdx->interface->dev,
+			"%s - char out done, %d chars sent", __func__, nGot);
+		spin_lock(&pdx->charOutLock);	// already at irq level
+		pdx->dwNumOutput -= nGot;	// Now adjust the char send buffer
+		pdx->dwOutBuffGet += nGot;	// to match what we did
+		if (pdx->dwOutBuffGet >= OUTBUF_SZ)	// Can't do this any earlier as data could be overwritten
+			pdx->dwOutBuffGet = 0;
+
+		if (pdx->dwNumOutput > 0)	// if more to be done...
+		{
+			int nPipe = 0;	// The pipe number to use
+			int iReturn;
+			char *pDat = &pdx->outputBuffer[pdx->dwOutBuffGet];
+			unsigned int dwCount = pdx->dwNumOutput;	// maximum to send
+			if ((pdx->dwOutBuffGet + dwCount) > OUTBUF_SZ)	// does it cross buffer end?
+				dwCount = OUTBUF_SZ - pdx->dwOutBuffGet;
+			spin_unlock(&pdx->charOutLock);	// we are done with stuff that changes
+			memcpy(pdx->pCoherCharOut, pDat, dwCount);	// copy output data to the buffer
+			usb_fill_bulk_urb(pdx->pUrbCharOut, pdx->udev,
+					  usb_sndbulkpipe(pdx->udev,
+							  pdx->epAddr[0]),
+					  pdx->pCoherCharOut, dwCount,
+					  ced_writechar_callback, pdx);
+			pdx->pUrbCharOut->transfer_flags |=
+			    URB_NO_TRANSFER_DMA_MAP;
+			usb_anchor_urb(pdx->pUrbCharOut, &pdx->submitted);	// in case we need to kill it
+			iReturn = usb_submit_urb(pdx->pUrbCharOut, GFP_ATOMIC);
+			dev_dbg(&pdx->interface->dev, "%s n=%d>%s<", __func__,
+				dwCount, pDat);
+			spin_lock(&pdx->charOutLock);	// grab lock for errors
+			if (iReturn) {
+				pdx->bPipeError[nPipe] = 1;	// Flag an error to be handled later
+				pdx->bSendCharsPending = false;	// Allow other threads again
+				usb_unanchor_urb(pdx->pUrbCharOut);
+				dev_err(&pdx->interface->dev,
+					"%s usb_submit_urb() returned %d",
+					__func__, iReturn);
+			}
+		} else
+			pdx->bSendCharsPending = false;	// Allow other threads again
+		spin_unlock(&pdx->charOutLock);	// already at irq level
+	}
+}
+
+/****************************************************************************
+** SendChars
+** Transmit the characters in the output buffer to the 1401. This may need
+** breaking down into multiple transfers.
+****************************************************************************/
+int SendChars(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = U14ERR_NOERROR;
+
+	spin_lock_irq(&pdx->charOutLock);	// Protect ourselves
+
+	if ((!pdx->bSendCharsPending) &&	// Not currently sending
+	    (pdx->dwNumOutput > 0) &&	//  has characters to output
+	    (CanAcceptIoRequests(pdx)))	//  and current activity is OK
+	{
+		unsigned int dwCount = pdx->dwNumOutput;	// Get a copy of the character count
+		pdx->bSendCharsPending = true;	// Set flag to lock out other threads
+
+		dev_dbg(&pdx->interface->dev,
+			"Send %d chars to 1401, EP0 flag %d\n", dwCount,
+			pdx->nPipes == 3);
+		// If we have only 3 end points we must send the characters to the 1401 using EP0.
+		if (pdx->nPipes == 3) {
+			// For EP0 character transmissions to the 1401, we have to hang about until they
+			// are gone, as otherwise without more character IO activity they will never go.
+			unsigned int count = dwCount;	// Local char counter
+			unsigned int index = 0;	// The index into the char buffer
+
+			spin_unlock_irq(&pdx->charOutLock);	// Free spinlock as we call USBD
+
+			while ((count > 0) && (iReturn == U14ERR_NOERROR)) {
+				// We have to break the transfer up into 64-byte chunks because of a 2270 problem
+				int n = count > 64 ? 64 : count;	// Chars for this xfer, max of 64
+				int nSent = usb_control_msg(pdx->udev,
+							    usb_sndctrlpipe(pdx->udev, 0),	// use end point 0
+							    DB_CHARS,	// bRequest
+							    (H_TO_D | VENDOR | DEVREQ),	// to the device, vendor request to the device
+							    0, 0,	// value and index are both 0
+							    &pdx->outputBuffer[index],	// where to send from
+							    n,	// how much to send
+							    1000);	// timeout in jiffies
+				if (nSent <= 0) {
+					iReturn = nSent ? nSent : -ETIMEDOUT;	// if 0 chars says we timed out
+					dev_err(&pdx->interface->dev,
+						"Send %d chars by EP0 failed: %d",
+						n, iReturn);
+				} else {
+					dev_dbg(&pdx->interface->dev,
+						"Sent %d chars by EP0", n);
+					count -= nSent;
+					index += nSent;
+				}
+			}
+
+			spin_lock_irq(&pdx->charOutLock);	// Protect pdx changes, released by general code
+			pdx->dwOutBuffGet = 0;	// so reset the output buffer
+			pdx->dwOutBuffPut = 0;
+			pdx->dwNumOutput = 0;	// and clear the buffer count
+			pdx->bSendCharsPending = false;	// Allow other threads again
+		} else {	// Here for sending chars normally - we hold the spin lock
+			int nPipe = 0;	// The pipe number to use
+			char *pDat = &pdx->outputBuffer[pdx->dwOutBuffGet];
+
+			if ((pdx->dwOutBuffGet + dwCount) > OUTBUF_SZ)	// does it cross buffer end?
+				dwCount = OUTBUF_SZ - pdx->dwOutBuffGet;
+			spin_unlock_irq(&pdx->charOutLock);	// we are done with stuff that changes
+			memcpy(pdx->pCoherCharOut, pDat, dwCount);	// copy output data to the buffer
+			usb_fill_bulk_urb(pdx->pUrbCharOut, pdx->udev,
+					  usb_sndbulkpipe(pdx->udev,
+							  pdx->epAddr[0]),
+					  pdx->pCoherCharOut, dwCount,
+					  ced_writechar_callback, pdx);
+			pdx->pUrbCharOut->transfer_flags |=
+			    URB_NO_TRANSFER_DMA_MAP;
+			usb_anchor_urb(pdx->pUrbCharOut, &pdx->submitted);
+			iReturn = usb_submit_urb(pdx->pUrbCharOut, GFP_KERNEL);
+			spin_lock_irq(&pdx->charOutLock);	// grab lock for errors
+			if (iReturn) {
+				pdx->bPipeError[nPipe] = 1;	// Flag an error to be handled later
+				pdx->bSendCharsPending = false;	// Allow other threads again
+				usb_unanchor_urb(pdx->pUrbCharOut);	// remove from list of active urbs
+			}
+		}
+	} else if (pdx->bSendCharsPending && (pdx->dwNumOutput > 0))
+		dev_dbg(&pdx->interface->dev,
+			"SendChars bSendCharsPending:true");
+
+	dev_dbg(&pdx->interface->dev, "SendChars exit code: %d", iReturn);
+	spin_unlock_irq(&pdx->charOutLock);	// Now let go of the spinlock
+	return iReturn;
+}
+
+/***************************************************************************
+** CopyUserSpace
+** This moves memory between pinned down user space and the pCoherStagedIO
+** memory buffer we use for transfers. Copy n bytes in the directions that
+** is defined by pdx->StagedRead. The user space is determined by the area
+** in pdx->StagedId and the offset in pdx->StagedDone. The user
+** area may well not start on a page boundary, so allow for that.
+**
+** We have a table of physical pages that describe the area, so we can use
+** this to get a virtual address that the kernel can use.
+**
+** pdx  Is our device extension which holds all we know about the transfer.
+** n    The number of bytes to move one way or the other.
+***************************************************************************/
+static void CopyUserSpace(DEVICE_EXTENSION * pdx, int n)
+{
+	unsigned int nArea = pdx->StagedId;
+	if (nArea < MAX_TRANSAREAS) {
+		TRANSAREA *pArea = &pdx->rTransDef[nArea];	// area to be used
+		unsigned int dwOffset =
+		    pdx->StagedDone + pdx->StagedOffset + pArea->dwBaseOffset;
+		char *pCoherBuf = pdx->pCoherStagedIO;	// coherent buffer
+		if (!pArea->bUsed) {
+			dev_err(&pdx->interface->dev, "%s area %d unused",
+				__func__, nArea);
+			return;
+		}
+
+		while (n) {
+			int nPage = dwOffset >> PAGE_SHIFT;	// page number in table
+			if (nPage < pArea->nPages) {
+				char *pvAddress =
+				    (char *)kmap_atomic(pArea->pPages[nPage]);
+				if (pvAddress) {
+					unsigned int uiPageOff = dwOffset & (PAGE_SIZE - 1);	// offset into the page
+					size_t uiXfer = PAGE_SIZE - uiPageOff;	// max to transfer on this page
+					if (uiXfer > n)	// limit byte count if too much
+						uiXfer = n;	// for the page
+					if (pdx->StagedRead)
+						memcpy(pvAddress + uiPageOff,
+						       pCoherBuf, uiXfer);
+					else
+						memcpy(pCoherBuf,
+						       pvAddress + uiPageOff,
+						       uiXfer);
+					kunmap_atomic(pvAddress);
+					dwOffset += uiXfer;
+					pCoherBuf += uiXfer;
+					n -= uiXfer;
+				} else {
+					dev_err(&pdx->interface->dev,
+						"%s did not map page %d",
+						__func__, nPage);
+					return;
+				}
+
+			} else {
+				dev_err(&pdx->interface->dev,
+					"%s exceeded pages %d", __func__,
+					nPage);
+				return;
+			}
+		}
+	} else
+		dev_err(&pdx->interface->dev, "%s bad area %d", __func__,
+			nArea);
+}
+
+// Forward declarations for stuff used circularly
+static int StageChunk(DEVICE_EXTENSION * pdx);
+/***************************************************************************
+** ReadWrite_Complete
+**
+**  Completion routine for our staged read/write Irps
+*/
+static void staged_callback(struct urb *pUrb)
+{
+	DEVICE_EXTENSION *pdx = pUrb->context;
+	unsigned int nGot = pUrb->actual_length;	// what we transferred
+	bool bCancel = false;
+	bool bRestartCharInput;	// used at the end
+
+	spin_lock(&pdx->stagedLock);	// stop ReadWriteMem() action while this routine is running
+	pdx->bStagedUrbPending = false;	// clear the flag for staged IRP pending
+
+	if (pUrb->status) {	// sync/async unlink faults aren't errors
+		if (!
+		    (pUrb->status == -ENOENT || pUrb->status == -ECONNRESET
+		     || pUrb->status == -ESHUTDOWN)) {
+			dev_err(&pdx->interface->dev,
+				"%s - nonzero write bulk status received: %d",
+				__func__, pUrb->status);
+		} else
+			dev_info(&pdx->interface->dev,
+				 "%s - staged xfer cancelled", __func__);
+
+		spin_lock(&pdx->err_lock);
+		pdx->errors = pUrb->status;
+		spin_unlock(&pdx->err_lock);
+		nGot = 0;	//  and tidy up again if so
+		bCancel = true;
+	} else {
+		dev_dbg(&pdx->interface->dev, "%s %d chars xferred", __func__,
+			nGot);
+		if (pdx->StagedRead)	// if reading, save to user space
+			CopyUserSpace(pdx, nGot);	// copy from buffer to user
+		if (nGot == 0)
+			dev_dbg(&pdx->interface->dev, "%s ZLP", __func__);
+	}
+
+	// Update the transfer length based on the TransferBufferLength value in the URB
+	pdx->StagedDone += nGot;
+
+	dev_dbg(&pdx->interface->dev, "%s, done %d bytes of %d", __func__,
+		pdx->StagedDone, pdx->StagedLength);
+
+	if ((pdx->StagedDone == pdx->StagedLength) ||	// If no more to do
+	    (bCancel))		// or this IRP was cancelled
+	{
+		TRANSAREA *pArea = &pdx->rTransDef[pdx->StagedId];	// Transfer area info
+		dev_dbg(&pdx->interface->dev,
+			"%s transfer done, bytes %d, cancel %d", __func__,
+			pdx->StagedDone, bCancel);
+
+		// Here is where we sort out what to do with this transfer if using a circular buffer. We have
+		//  a completed transfer that can be assumed to fit into the transfer area. We should be able to
+		//  add this to the end of a growing block or to use it to start a new block unless the code
+		//  that calculates the offset to use (in ReadWriteMem) is totally duff.
+		if ((pArea->bCircular) && (pArea->bCircToHost) && (!bCancel) &&	// Time to sort out circular buffer info?
+		    (pdx->StagedRead))	// Only for tohost transfers for now
+		{
+			if (pArea->aBlocks[1].dwSize > 0)	// If block 1 is in use we must append to it
+			{
+				if (pdx->StagedOffset ==
+				    (pArea->aBlocks[1].dwOffset +
+				     pArea->aBlocks[1].dwSize)) {
+					pArea->aBlocks[1].dwSize +=
+					    pdx->StagedLength;
+					dev_dbg(&pdx->interface->dev,
+						"RWM_Complete, circ block 1 now %d bytes at %d",
+						pArea->aBlocks[1].dwSize,
+						pArea->aBlocks[1].dwOffset);
+				} else {
+					// Here things have gone very, very, wrong, but I cannot see how this can actually be achieved
+					pArea->aBlocks[1].dwOffset =
+					    pdx->StagedOffset;
+					pArea->aBlocks[1].dwSize =
+					    pdx->StagedLength;
+					dev_err(&pdx->interface->dev,
+						"%s ERROR, circ block 1 re-started %d bytes at %d",
+						__func__,
+						pArea->aBlocks[1].dwSize,
+						pArea->aBlocks[1].dwOffset);
+				}
+			} else	// If block 1 is not used, we try to add to block 0
+			{
+				if (pArea->aBlocks[0].dwSize > 0)	// Got stored block 0 information?
+				{	// Must append onto the existing block 0
+					if (pdx->StagedOffset ==
+					    (pArea->aBlocks[0].dwOffset +
+					     pArea->aBlocks[0].dwSize)) {
+						pArea->aBlocks[0].dwSize += pdx->StagedLength;	// Just add this transfer in
+						dev_dbg(&pdx->interface->dev,
+							"RWM_Complete, circ block 0 now %d bytes at %d",
+							pArea->aBlocks[0].
+							dwSize,
+							pArea->aBlocks[0].
+							dwOffset);
+					} else	// If it doesn't append, put into new block 1
+					{
+						pArea->aBlocks[1].dwOffset =
+						    pdx->StagedOffset;
+						pArea->aBlocks[1].dwSize =
+						    pdx->StagedLength;
+						dev_dbg(&pdx->interface->dev,
+							"RWM_Complete, circ block 1 started %d bytes at %d",
+							pArea->aBlocks[1].
+							dwSize,
+							pArea->aBlocks[1].
+							dwOffset);
+					}
+				} else	// No info stored yet, just save in block 0
+				{
+					pArea->aBlocks[0].dwOffset =
+					    pdx->StagedOffset;
+					pArea->aBlocks[0].dwSize =
+					    pdx->StagedLength;
+					dev_dbg(&pdx->interface->dev,
+						"RWM_Complete, circ block 0 started %d bytes at %d",
+						pArea->aBlocks[0].dwSize,
+						pArea->aBlocks[0].dwOffset);
+				}
+			}
+		}
+
+		if (!bCancel)	// Don't generate an event if cancelled
+		{
+			dev_dbg(&pdx->interface->dev,
+				"RWM_Complete,  bCircular %d, bToHost %d, eStart %d, eSize %d",
+				pArea->bCircular, pArea->bEventToHost,
+				pArea->dwEventSt, pArea->dwEventSz);
+			if ((pArea->dwEventSz) &&	// Set a user-mode event...
+			    (pdx->StagedRead == pArea->bEventToHost))	// ...on transfers in this direction?
+			{
+				int iWakeUp = 0;	// assume
+				// If we have completed the right sort of DMA transfer then set the event to notify
+				//   the user code to wake up anyone that is waiting.
+				if ((pArea->bCircular) &&	// Circular areas use a simpler test
+				    (pArea->bCircToHost))	// only in supported direction
+				{	// Is total data waiting up to size limit?
+					unsigned int dwTotal =
+					    pArea->aBlocks[0].dwSize +
+					    pArea->aBlocks[1].dwSize;
+					iWakeUp = (dwTotal >= pArea->dwEventSz);
+				} else {
+					unsigned int transEnd =
+					    pdx->StagedOffset +
+					    pdx->StagedLength;
+					unsigned int eventEnd =
+					    pArea->dwEventSt + pArea->dwEventSz;
+					iWakeUp = (pdx->StagedOffset < eventEnd)
+					    && (transEnd > pArea->dwEventSt);
+				}
+
+				if (iWakeUp) {
+					dev_dbg(&pdx->interface->dev,
+						"About to set event to notify app");
+					wake_up_interruptible(&pArea->wqEvent);	// wake up waiting processes
+					++pArea->iWakeUp;	// increment wakeup count
+				}
+			}
+		}
+
+		pdx->dwDMAFlag = MODE_CHAR;	// Switch back to char mode before ReadWriteMem call
+
+		if (!bCancel)	// Don't look for waiting transfer if cancelled
+		{
+			// If we have a transfer waiting, kick it off
+			if (pdx->bXFerWaiting)	// Got a block xfer waiting?
+			{
+				int iReturn;
+				dev_info(&pdx->interface->dev,
+					 "*** RWM_Complete *** pending transfer will now be set up!!!");
+				iReturn =
+				    ReadWriteMem(pdx, !pdx->rDMAInfo.bOutWard,
+						 pdx->rDMAInfo.wIdent,
+						 pdx->rDMAInfo.dwOffset,
+						 pdx->rDMAInfo.dwSize);
+
+				if (iReturn)
+					dev_err(&pdx->interface->dev,
+						"RWM_Complete rw setup failed %d",
+						iReturn);
+			}
+		}
+
+	} else			// Here for more to do
+		StageChunk(pdx);	// fire off the next bit
+
+	// While we hold the stagedLock, see if we should reallow character input ints
+	// Don't allow if cancelled, or if a new block has started or if there is a waiting block.
+	// This feels wrong as we should ask which spin lock protects dwDMAFlag.
+	bRestartCharInput = !bCancel && (pdx->dwDMAFlag == MODE_CHAR)
+	    && !pdx->bXFerWaiting;
+
+	spin_unlock(&pdx->stagedLock);	// Finally release the lock again
+
+	// This is not correct as dwDMAFlag is protected by the staged lock, but it is treated
+	// in Allowi as if it were protected by the char lock. In any case, most systems will
+	// not be upset by char input during DMA... sigh. Needs sorting out.
+	if (bRestartCharInput)	// may be out of date, but...
+		Allowi(pdx, true);	// ...Allowi tests a lock too.
+	dev_dbg(&pdx->interface->dev, "%s done", __func__);
+}
+
+/****************************************************************************
+** StageChunk
+**
+** Generates the next chunk of data making up a staged transfer.
+**
+** The calling code must have acquired the staging spinlock before calling
+**  this function, and is responsible for releasing it. We are at callback level.
+****************************************************************************/
+static int StageChunk(DEVICE_EXTENSION * pdx)
+{
+	int iReturn = U14ERR_NOERROR;
+	unsigned int ChunkSize;
+	int nPipe = pdx->StagedRead ? 3 : 2;	// The pipe number to use for reads or writes
+	if (pdx->nPipes == 3)
+		nPipe--;	// Adjust for the 3-pipe case
+	if (nPipe < 0)		// and trap case that should never happen
+		return U14ERR_FAIL;
+
+	if (!CanAcceptIoRequests(pdx))	// got sudden remove?
+	{
+		dev_info(&pdx->interface->dev, "%s sudden remove, giving up",
+			 __func__);
+		return U14ERR_FAIL;	// could do with a better error
+	}
+
+	ChunkSize = (pdx->StagedLength - pdx->StagedDone);	// transfer length remaining
+	if (ChunkSize > STAGED_SZ)	// make sure to keep legal
+		ChunkSize = STAGED_SZ;	//  limit to max allowed
+
+	if (!pdx->StagedRead)	// if writing...
+		CopyUserSpace(pdx, ChunkSize);	// ...copy data into the buffer
+
+	usb_fill_bulk_urb(pdx->pStagedUrb, pdx->udev,
+			  pdx->StagedRead ? usb_rcvbulkpipe(pdx->udev,
+							    pdx->
+							    epAddr[nPipe]) :
+			  usb_sndbulkpipe(pdx->udev, pdx->epAddr[nPipe]),
+			  pdx->pCoherStagedIO, ChunkSize, staged_callback, pdx);
+	pdx->pStagedUrb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+	usb_anchor_urb(pdx->pStagedUrb, &pdx->submitted);	// in case we need to kill it
+	iReturn = usb_submit_urb(pdx->pStagedUrb, GFP_ATOMIC);
+	if (iReturn) {
+		usb_unanchor_urb(pdx->pStagedUrb);	// kill it
+		pdx->bPipeError[nPipe] = 1;	// Flag an error to be handled later
+		dev_err(&pdx->interface->dev, "%s submit urb failed, code %d",
+			__func__, iReturn);
+	} else
+		pdx->bStagedUrbPending = true;	// Set the flag for staged URB pending
+	dev_dbg(&pdx->interface->dev, "%s done so far:%d, this size:%d",
+		__func__, pdx->StagedDone, ChunkSize);
+
+	return iReturn;
+}
+
+/***************************************************************************
+** ReadWriteMem
+**
+** This routine is used generally for block read and write operations.
+** Breaks up a read or write in to specified sized chunks, as specified by pipe
+** information on maximum transfer size.
+**
+** Any code that calls this must be holding the stagedLock
+**
+** Arguments:
+**    DeviceObject - pointer to our FDO (Functional Device Object)
+**    Read - TRUE for read, FALSE for write. This is from POV of the driver
+**    wIdent - the transfer area number - defines memory area and more.
+**    dwOffs - the start offset within the transfer area of the start of this
+**             transfer.
+**    dwLen - the number of bytes to transfer.
+*/
+int ReadWriteMem(DEVICE_EXTENSION * pdx, bool Read, unsigned short wIdent,
+		 unsigned int dwOffs, unsigned int dwLen)
+{
+	TRANSAREA *pArea = &pdx->rTransDef[wIdent];	// Transfer area info
+
+	if (!CanAcceptIoRequests(pdx))	// Are we in a state to accept new requests?
+	{
+		dev_err(&pdx->interface->dev, "%s can't accept requests",
+			__func__);
+		return U14ERR_FAIL;
+	}
+
+	dev_dbg(&pdx->interface->dev,
+		"%s xfer %d bytes to %s, offset %d, area %d", __func__, dwLen,
+		Read ? "host" : "1401", dwOffs, wIdent);
+
+	// Amazingly, we can get an escape sequence back before the current staged Urb is done, so we
+	//  have to check for this situation and, if so, wait until all is OK.
+	if (pdx->bStagedUrbPending) {
+		pdx->bXFerWaiting = true;	// Flag we are waiting
+		dev_info(&pdx->interface->dev,
+			 "%s xfer is waiting, as previous staged pending",
+			 __func__);
+		return U14ERR_NOERROR;
+	}
+
+	if (dwLen == 0)		// allow 0-len read or write; just return success
+	{
+		dev_dbg(&pdx->interface->dev,
+			"%s OK; zero-len read/write request", __func__);
+		return U14ERR_NOERROR;
+	}
+
+	if ((pArea->bCircular) &&	// Circular transfer?
+	    (pArea->bCircToHost) && (Read))	// In a supported direction
+	{			// If so, we sort out offset ourself
+		bool bWait = false;	// Flag for transfer having to wait
+
+		dev_dbg(&pdx->interface->dev,
+			"Circular buffers are %d at %d and %d at %d",
+			pArea->aBlocks[0].dwSize, pArea->aBlocks[0].dwOffset,
+			pArea->aBlocks[1].dwSize, pArea->aBlocks[1].dwOffset);
+		if (pArea->aBlocks[1].dwSize > 0)	// Using the second block already?
+		{
+			dwOffs = pArea->aBlocks[1].dwOffset + pArea->aBlocks[1].dwSize;	// take offset from that
+			bWait = (dwOffs + dwLen) > pArea->aBlocks[0].dwOffset;	// Wait if will overwrite block 0?
+			bWait |= (dwOffs + dwLen) > pArea->dwLength;	// or if it overflows the buffer
+		} else		// Area 1 not in use, try to use area 0
+		{
+			if (pArea->aBlocks[0].dwSize == 0)	// Reset block 0 if not in use
+				pArea->aBlocks[0].dwOffset = 0;
+			dwOffs =
+			    pArea->aBlocks[0].dwOffset +
+			    pArea->aBlocks[0].dwSize;
+			if ((dwOffs + dwLen) > pArea->dwLength)	// Off the end of the buffer?
+			{
+				pArea->aBlocks[1].dwOffset = 0;	// Set up to use second block
+				dwOffs = 0;
+				bWait = (dwOffs + dwLen) > pArea->aBlocks[0].dwOffset;	// Wait if will overwrite block 0?
+				bWait |= (dwOffs + dwLen) > pArea->dwLength;	// or if it overflows the buffer
+			}
+		}
+
+		if (bWait)	// This transfer will have to wait?
+		{
+			pdx->bXFerWaiting = true;	// Flag we are waiting
+			dev_dbg(&pdx->interface->dev,
+				"%s xfer waiting for circular buffer space",
+				__func__);
+			return U14ERR_NOERROR;
+		}
+
+		dev_dbg(&pdx->interface->dev,
+			"%s circular xfer, %d bytes starting at %d", __func__,
+			dwLen, dwOffs);
+	}
+	// Save the parameters for the read\write transfer
+	pdx->StagedRead = Read;	// Save the parameters for this read
+	pdx->StagedId = wIdent;	// ID allows us to get transfer area info
+	pdx->StagedOffset = dwOffs;	// The area within the transfer area
+	pdx->StagedLength = dwLen;
+	pdx->StagedDone = 0;	// Initialise the byte count
+	pdx->dwDMAFlag = MODE_LINEAR;	// Set DMA mode flag at this point
+	pdx->bXFerWaiting = false;	// Clearly not a transfer waiting now
+
+//    KeClearEvent(&pdx->StagingDoneEvent);           // Clear the transfer done event
+	StageChunk(pdx);	// fire off the first chunk
+
+	return U14ERR_NOERROR;
+}
+
+/****************************************************************************
+**
+** ReadChar
+**
+** Reads a character a buffer. If there is no more
+**  data we return FALSE. Used as part of decoding a DMA request.
+**
+****************************************************************************/
+static bool ReadChar(unsigned char *pChar, char *pBuf, unsigned int *pdDone,
+		     unsigned int dGot)
+{
+	bool bRead = false;
+	unsigned int dDone = *pdDone;
+
+	if (dDone < dGot)	// If there is more data
+	{
+		*pChar = (unsigned char)pBuf[dDone];	// Extract the next char
+		dDone++;	// Increment the done count
+		*pdDone = dDone;
+		bRead = true;	// and flag success
+	}
+
+	return bRead;
+}
+
+#ifdef NOTUSED
+/****************************************************************************
+**
+** ReadWord
+**
+** Reads a word from the 1401, just uses ReadChar twice; passes on any error
+**
+*****************************************************************************/
+static bool ReadWord(unsigned short *pWord, char *pBuf, unsigned int *pdDone,
+		     unsigned int dGot)
+{
+	if (ReadChar((unsigned char *)pWord, pBuf, pdDone, dGot))
+		return ReadChar(((unsigned char *)pWord) + 1, pBuf, pdDone,
+				dGot);
+	else
+		return false;
+}
+#endif
+
+/****************************************************************************
+** ReadHuff
+**
+** Reads a coded number in and returns it, Code is:
+** If data is in range 0..127 we recieve 1 byte. If data in range 128-16383
+** we recieve two bytes, top bit of first indicates another on its way. If
+** data in range 16383-4194303 we get three bytes, top two bits of first set
+** to indicate three byte total.
+**
+*****************************************************************************/
+static bool ReadHuff(volatile unsigned int *pDWord, char *pBuf,
+		     unsigned int *pdDone, unsigned int dGot)
+{
+	unsigned char ucData;	/* for each read to ReadChar */
+	bool bReturn = true;	/* assume we will succeed */
+	unsigned int dwData = 0;	/* Accumulator for the data */
+
+	if (ReadChar(&ucData, pBuf, pdDone, dGot)) {
+		dwData = ucData;	/* copy the data */
+		if ((dwData & 0x00000080) != 0) {	/* Bit set for more data ? */
+			dwData &= 0x0000007F;	/* Clear the relevant bit */
+			if (ReadChar(&ucData, pBuf, pdDone, dGot)) {
+				dwData = (dwData << 8) | ucData;
+				if ((dwData & 0x00004000) != 0) {	/* three byte sequence ? */
+					dwData &= 0x00003FFF;	/* Clear the relevant bit */
+					if (ReadChar
+					    (&ucData, pBuf, pdDone, dGot))
+						dwData = (dwData << 8) | ucData;
+					else
+						bReturn = false;
+				}
+			} else
+				bReturn = false;	/* couldn't read data */
+		}
+	} else
+		bReturn = false;
+
+	*pDWord = dwData;	/* return the data */
+	return bReturn;
+}
+
+/***************************************************************************
+**
+** ReadDMAInfo
+**
+** Tries to read info about the dma request from the 1401 and decode it into
+** the dma descriptor block. We have at this point had the escape character
+** from the 1401 and now we must read in the rest of the information about
+** the transfer request. Returns FALSE if 1401 fails to respond or obselete
+** code from 1401 or bad parameters.
+**
+** The pBuf char pointer does not include the initial escape character, so
+**  we start handling the data at offset zero.
+**
+*****************************************************************************/
+static bool ReadDMAInfo(volatile DMADESC * pDmaDesc, DEVICE_EXTENSION * pdx,
+			char *pBuf, unsigned int dwCount)
+{
+	bool bResult = false;	// assume we won't succeed
+	unsigned char ucData;
+	unsigned int dDone = 0;	// We haven't parsed anything so far
+
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	if (ReadChar(&ucData, pBuf, &dDone, dwCount)) {
+		unsigned char ucTransCode = (ucData & 0x0F);	// get code for transfer type
+		unsigned short wIdent = ((ucData >> 4) & 0x07);	// and area identifier
+
+		// fill in the structure we were given
+		pDmaDesc->wTransType = ucTransCode;	// type of transfer
+		pDmaDesc->wIdent = wIdent;	// area to use
+		pDmaDesc->dwSize = 0;	// initialise other bits
+		pDmaDesc->dwOffset = 0;
+
+		dev_dbg(&pdx->interface->dev, "%s type: %d ident: %d", __func__,
+			pDmaDesc->wTransType, pDmaDesc->wIdent);
+
+		pDmaDesc->bOutWard = (ucTransCode != TM_EXTTOHOST);	// set transfer direction
+
+		switch (ucTransCode) {
+		case TM_EXTTOHOST:	// Extended linear transfer modes (the only ones!)
+		case TM_EXTTO1401:
+			{
+				bResult =
+				    ReadHuff(&(pDmaDesc->dwOffset), pBuf,
+					     &dDone, dwCount)
+				    && ReadHuff(&(pDmaDesc->dwSize), pBuf,
+						&dDone, dwCount);
+				if (bResult) {
+					dev_dbg(&pdx->interface->dev,
+						"%s xfer offset & size %d %d",
+						__func__, pDmaDesc->dwOffset,
+						pDmaDesc->dwSize);
+
+					if ((wIdent >= MAX_TRANSAREAS) ||	// Illegal area number, or...
+					    (!pdx->rTransDef[wIdent].bUsed) ||	// area not set up, or...
+					    (pDmaDesc->dwOffset > pdx->rTransDef[wIdent].dwLength) ||	// range/size
+					    ((pDmaDesc->dwOffset +
+					      pDmaDesc->dwSize) >
+					     (pdx->rTransDef[wIdent].
+					      dwLength))) {
+						bResult = false;	// bad parameter(s)
+						dev_dbg(&pdx->interface->dev,
+							"%s bad param - id %d, bUsed %d, offset %d, size %d, area length %d",
+							__func__, wIdent,
+							pdx->rTransDef[wIdent].
+							bUsed,
+							pDmaDesc->dwOffset,
+							pDmaDesc->dwSize,
+							pdx->rTransDef[wIdent].
+							dwLength);
+					}
+				}
+				break;
+			}
+		default:
+			break;
+		}
+	} else
+		bResult = false;
+
+	if (!bResult)		// now check parameters for validity
+		dev_err(&pdx->interface->dev, "%s error reading Esc sequence",
+			__func__);
+
+	return bResult;
+}
+
+/****************************************************************************
+**
+** Handle1401Esc
+**
+** Deals with an escape sequence coming from the 1401. This can either be
+**  a DMA transfer request of various types or a response to an escape sequence
+**  sent to the 1401. This is called from a callback.
+**
+** Parameters are
+**
+** dwCount - the number of characters in the device extension char in buffer,
+**           this is known to be at least 2 or we will not be called.
+**
+****************************************************************************/
+static int Handle1401Esc(DEVICE_EXTENSION * pdx, char *pCh,
+			 unsigned int dwCount)
+{
+	int iReturn = U14ERR_FAIL;
+
+	// I have no idea what this next test is about. '?' is 0x3f, which is area 3, code
+	// 15. At the moment, this is not used, so it does no harm, but unless someone can
+	// tell me what this is for, it should be removed from this and the Windows driver.
+	if (pCh[0] == '?')	// Is this an information response
+	{			// Parse and save the information
+	} else {
+		spin_lock(&pdx->stagedLock);	// Lock others out
+
+		if (ReadDMAInfo(&pdx->rDMAInfo, pdx, pCh, dwCount))	// Get DMA parameters
+		{
+			unsigned short wTransType = pdx->rDMAInfo.wTransType;	// check transfer type
+
+			dev_dbg(&pdx->interface->dev,
+				"%s xfer to %s, offset %d, length %d", __func__,
+				pdx->rDMAInfo.bOutWard ? "1401" : "host",
+				pdx->rDMAInfo.dwOffset, pdx->rDMAInfo.dwSize);
+
+			if (pdx->bXFerWaiting)	// Check here for badly out of kilter...
+			{	// This can never happen, really
+				dev_err(&pdx->interface->dev,
+					"ERROR: DMA setup while transfer still waiting");
+				spin_unlock(&pdx->stagedLock);
+			} else {
+				if ((wTransType == TM_EXTTOHOST)
+				    || (wTransType == TM_EXTTO1401)) {
+					iReturn =
+					    ReadWriteMem(pdx,
+							 !pdx->rDMAInfo.
+							 bOutWard,
+							 pdx->rDMAInfo.wIdent,
+							 pdx->rDMAInfo.dwOffset,
+							 pdx->rDMAInfo.dwSize);
+					if (iReturn != U14ERR_NOERROR)
+						dev_err(&pdx->interface->dev,
+							"%s ReadWriteMem() failed %d",
+							__func__, iReturn);
+				} else	// This covers non-linear transfer setup
+					dev_err(&pdx->interface->dev,
+						"%s Unknown block xfer type %d",
+						__func__, wTransType);
+			}
+		} else		// Failed to read parameters
+			dev_err(&pdx->interface->dev, "%s ReadDMAInfo() fail",
+				__func__);
+
+		spin_unlock(&pdx->stagedLock);	// OK here
+	}
+
+	dev_dbg(&pdx->interface->dev, "%s returns %d", __func__, iReturn);
+
+	return iReturn;
+}
+
+/****************************************************************************
+** Callback for the character read complete or error
+****************************************************************************/
+static void ced_readchar_callback(struct urb *pUrb)
+{
+	DEVICE_EXTENSION *pdx = pUrb->context;
+	int nGot = pUrb->actual_length;	// what we transferred
+
+	if (pUrb->status)	// Do we have a problem to handle?
+	{
+		int nPipe = pdx->nPipes == 4 ? 1 : 0;	// The pipe number to use for error
+		// sync/async unlink faults aren't errors... just saying device removed or stopped
+		if (!
+		    (pUrb->status == -ENOENT || pUrb->status == -ECONNRESET
+		     || pUrb->status == -ESHUTDOWN)) {
+			dev_err(&pdx->interface->dev,
+				"%s - nonzero write bulk status received: %d",
+				__func__, pUrb->status);
+		} else
+			dev_dbg(&pdx->interface->dev,
+				"%s - 0 chars pUrb->status=%d (shutdown?)",
+				__func__, pUrb->status);
+
+		spin_lock(&pdx->err_lock);
+		pdx->errors = pUrb->status;
+		spin_unlock(&pdx->err_lock);
+		nGot = 0;	//  and tidy up again if so
+
+		spin_lock(&pdx->charInLock);	// already at irq level
+		pdx->bPipeError[nPipe] = 1;	// Flag an error for later
+	} else {
+		if ((nGot > 1) && ((pdx->pCoherCharIn[0] & 0x7f) == 0x1b))	// Esc sequence?
+		{
+			Handle1401Esc(pdx, &pdx->pCoherCharIn[1], nGot - 1);	// handle it
+			spin_lock(&pdx->charInLock);	// already at irq level
+		} else {
+			spin_lock(&pdx->charInLock);	// already at irq level
+			if (nGot > 0) {
+				unsigned int i;
+				if (nGot < INBUF_SZ) {
+					pdx->pCoherCharIn[nGot] = 0;	// tidy the string
+					dev_dbg(&pdx->interface->dev,
+						"%s got %d chars >%s<",
+						__func__, nGot,
+						pdx->pCoherCharIn);
+				}
+				// We know that whatever we read must fit in the input buffer
+				for (i = 0; i < nGot; i++) {
+					pdx->inputBuffer[pdx->dwInBuffPut++] =
+					    pdx->pCoherCharIn[i] & 0x7F;
+					if (pdx->dwInBuffPut >= INBUF_SZ)
+						pdx->dwInBuffPut = 0;
+				}
+
+				if ((pdx->dwNumInput + nGot) <= INBUF_SZ)
+					pdx->dwNumInput += nGot;	// Adjust the buffer count accordingly
+			} else
+				dev_dbg(&pdx->interface->dev, "%s read ZLP",
+					__func__);
+		}
+	}
+
+	pdx->bReadCharsPending = false;	// No longer have a pending read
+	spin_unlock(&pdx->charInLock);	// already at irq level
+
+	Allowi(pdx, true);	// see if we can do the next one
+}
+
+/****************************************************************************
+** Allowi
+**
+** This is used to make sure that there is always a pending input transfer so
+** we can pick up any inward transfers. This can be called in multiple contexts
+** so we use the irqsave version of the spinlock.
+****************************************************************************/
+int Allowi(DEVICE_EXTENSION * pdx, bool bInCallback)
+{
+	int iReturn = U14ERR_NOERROR;
+	unsigned long flags;
+	spin_lock_irqsave(&pdx->charInLock, flags);	// can be called in multiple contexts
+
+	// We don't want char input running while DMA is in progress as we know that this
+	//  can cause sequencing problems for the 2270. So don't. It will also allow the
+	//  ERR response to get back to the host code too early on some PCs, even if there
+	//  is no actual driver failure, so we don't allow this at all.
+	if (!pdx->bInDrawDown &&	// stop input if
+	    !pdx->bReadCharsPending &&	// If no read request outstanding
+	    (pdx->dwNumInput < (INBUF_SZ / 2)) &&	//  and there is some space
+	    (pdx->dwDMAFlag == MODE_CHAR) &&	//  not doing any DMA
+	    (!pdx->bXFerWaiting) &&	//  no xfer waiting to start
+	    (CanAcceptIoRequests(pdx)))	//  and activity is generally OK
+	{			//  then off we go
+		unsigned int nMax = INBUF_SZ - pdx->dwNumInput;	// max we could read
+		int nPipe = pdx->nPipes == 4 ? 1 : 0;	// The pipe number to use
+
+		dev_dbg(&pdx->interface->dev, "%s %d chars in input buffer",
+			__func__, pdx->dwNumInput);
+
+		usb_fill_int_urb(pdx->pUrbCharIn, pdx->udev,
+				 usb_rcvintpipe(pdx->udev, pdx->epAddr[nPipe]),
+				 pdx->pCoherCharIn, nMax, ced_readchar_callback,
+				 pdx, pdx->bInterval);
+		pdx->pUrbCharIn->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;	// short xfers are OK by default
+		usb_anchor_urb(pdx->pUrbCharIn, &pdx->submitted);	// in case we need to kill it
+		iReturn =
+		    usb_submit_urb(pdx->pUrbCharIn,
+				   bInCallback ? GFP_ATOMIC : GFP_KERNEL);
+		if (iReturn) {
+			usb_unanchor_urb(pdx->pUrbCharIn);	// remove from list of active Urbs
+			pdx->bPipeError[nPipe] = 1;	// Flag an error to be handled later
+			dev_err(&pdx->interface->dev,
+				"%s submit urb failed: %d", __func__, iReturn);
+		} else
+			pdx->bReadCharsPending = true;	// Flag that we are active here
+	}
+
+	spin_unlock_irqrestore(&pdx->charInLock, flags);
+
+	return iReturn;
+
+}
+
+/*****************************************************************************
+** The ioctl entry point to the driver that is used by us to talk to it.
+** inode    The device node (no longer in 3.0.0 kernels)
+** file     The file that is open, which holds our pdx pointer
+** ulArg    The argument passed in. Note that long is 64-bits in 64-bit system, i.e. it is big
+**          enough for a 64-bit pointer.
+*****************************************************************************/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
+static long ced_ioctl(struct file *file, unsigned int cmd, unsigned long ulArg)
+#else
+static int ced_ioctl(struct inode *node, struct file *file, unsigned int cmd,
+		     unsigned long ulArg)
+#endif
+{
+	int err = 0;
+	DEVICE_EXTENSION *pdx = file->private_data;
+	if (!CanAcceptIoRequests(pdx))	// check we still exist
+		return -ENODEV;
+
+	// Check that access is allowed, where is is needed. Anything that would have an indeterminate
+	// size will be checked by the specific command.
+	if (_IOC_DIR(cmd) & _IOC_READ)	// read from point of view of user...
+		err = !access_ok(VERIFY_WRITE, (void __user *)ulArg, _IOC_SIZE(cmd));	// is kernel write
+	else if (_IOC_DIR(cmd) & _IOC_WRITE)	// and write from point of view of user...
+		err = !access_ok(VERIFY_READ, (void __user *)ulArg, _IOC_SIZE(cmd));	// is kernel read
+	if (err)
+		return -EFAULT;
+
+	switch (_IOC_NR(cmd)) {
+	case _IOC_NR(IOCTL_CED_SENDSTRING(0)):
+		return SendString(pdx, (const char __user *)ulArg,
+				  _IOC_SIZE(cmd));
+
+	case _IOC_NR(IOCTL_CED_RESET1401):
+		return Reset1401(pdx);
+
+	case _IOC_NR(IOCTL_CED_GETCHAR):
+		return GetChar(pdx);
+
+	case _IOC_NR(IOCTL_CED_SENDCHAR):
+		return SendChar(pdx, (char)ulArg);
+
+	case _IOC_NR(IOCTL_CED_STAT1401):
+		return Stat1401(pdx);
+
+	case _IOC_NR(IOCTL_CED_LINECOUNT):
+		return LineCount(pdx);
+
+	case _IOC_NR(IOCTL_CED_GETSTRING(0)):
+		return GetString(pdx, (char __user *)ulArg, _IOC_SIZE(cmd));
+
+	case _IOC_NR(IOCTL_CED_SETTRANSFER):
+		return SetTransfer(pdx, (TRANSFERDESC __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_UNSETTRANSFER):
+		return UnsetTransfer(pdx, (int)ulArg);
+
+	case _IOC_NR(IOCTL_CED_SETEVENT):
+		return SetEvent(pdx, (TRANSFEREVENT __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_GETOUTBUFSPACE):
+		return GetOutBufSpace(pdx);
+
+	case _IOC_NR(IOCTL_CED_GETBASEADDRESS):
+		return -1;
+
+	case _IOC_NR(IOCTL_CED_GETDRIVERREVISION):
+		return (2 << 24) | (DRIVERMAJREV << 16) | DRIVERMINREV;	// USB | MAJOR | MINOR
+
+	case _IOC_NR(IOCTL_CED_GETTRANSFER):
+		return GetTransfer(pdx, (TGET_TX_BLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_KILLIO1401):
+		return KillIO1401(pdx);
+
+	case _IOC_NR(IOCTL_CED_STATEOF1401):
+		return StateOf1401(pdx);
+
+	case _IOC_NR(IOCTL_CED_GRAB1401):
+	case _IOC_NR(IOCTL_CED_FREE1401):
+		return U14ERR_NOERROR;
+
+	case _IOC_NR(IOCTL_CED_STARTSELFTEST):
+		return StartSelfTest(pdx);
+
+	case _IOC_NR(IOCTL_CED_CHECKSELFTEST):
+		return CheckSelfTest(pdx, (TGET_SELFTEST __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_TYPEOF1401):
+		return TypeOf1401(pdx);
+
+	case _IOC_NR(IOCTL_CED_TRANSFERFLAGS):
+		return TransferFlags(pdx);
+
+	case _IOC_NR(IOCTL_CED_DBGPEEK):
+		return DbgPeek(pdx, (TDBGBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_DBGPOKE):
+		return DbgPoke(pdx, (TDBGBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_DBGRAMPDATA):
+		return DbgRampData(pdx, (TDBGBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_DBGRAMPADDR):
+		return DbgRampAddr(pdx, (TDBGBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_DBGGETDATA):
+		return DbgGetData(pdx, (TDBGBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_DBGSTOPLOOP):
+		return DbgStopLoop(pdx);
+
+	case _IOC_NR(IOCTL_CED_FULLRESET):
+		pdx->bForceReset = true;	// Set a flag for a full reset
+		break;
+
+	case _IOC_NR(IOCTL_CED_SETCIRCULAR):
+		return SetCircular(pdx, (TRANSFERDESC __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_GETCIRCBLOCK):
+		return GetCircBlock(pdx, (TCIRCBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_FREECIRCBLOCK):
+		return FreeCircBlock(pdx, (TCIRCBLOCK __user *) ulArg);
+
+	case _IOC_NR(IOCTL_CED_WAITEVENT):
+		return WaitEvent(pdx, (int)(ulArg & 0xff), (int)(ulArg >> 8));
+
+	case _IOC_NR(IOCTL_CED_TESTEVENT):
+		return TestEvent(pdx, (int)ulArg);
+
+	default:
+		return U14ERR_NO_SUCH_FN;
+	}
+	return U14ERR_NOERROR;
+}
+
+static const struct file_operations ced_fops = {
+	.owner = THIS_MODULE,
+	.open = ced_open,
+	.release = ced_release,
+	.flush = ced_flush,
+	.llseek = noop_llseek,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
+	.unlocked_ioctl = ced_ioctl,
+#else
+	.ioctl = ced_ioctl,
+#endif
+};
+
+/*
+ * usb class driver info in order to get a minor number from the usb core,
+ * and to have the device registered with the driver core
+ */
+static struct usb_class_driver ced_class = {
+	.name = "cedusb%d",
+	.fops = &ced_fops,
+	.minor_base = USB_CED_MINOR_BASE,
+};
+
+// Check that the device that matches a 1401 vendor and product ID is OK to use and
+// initialise our DEVICE_EXTENSION.
+static int ced_probe(struct usb_interface *interface,
+		     const struct usb_device_id *id)
+{
+	DEVICE_EXTENSION *pdx;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	int i, bcdDevice;
+	int retval = -ENOMEM;
+
+	// allocate memory for our device extension and initialize it
+	pdx = kzalloc(sizeof(*pdx), GFP_KERNEL);
+	if (!pdx) {
+		dev_err(&interface->dev, "Out of memory\n");
+		goto error;
+	}
+
+	for (i = 0; i < MAX_TRANSAREAS; ++i)	// Initialise the wait queues
+	{
+		init_waitqueue_head(&pdx->rTransDef[i].wqEvent);
+	}
+
+	// Put initialises for our stuff here. Note that all of *pdx is zero, so
+	// no need to explicitly zero it.
+	spin_lock_init(&pdx->charOutLock);
+	spin_lock_init(&pdx->charInLock);
+	spin_lock_init(&pdx->stagedLock);
+
+	// Initialises from the skeleton stuff
+	kref_init(&pdx->kref);
+	mutex_init(&pdx->io_mutex);
+	spin_lock_init(&pdx->err_lock);
+	init_usb_anchor(&pdx->submitted);
+
+	pdx->udev = usb_get_dev(interface_to_usbdev(interface));
+	pdx->interface = interface;
+
+	// Attempt to identify the device
+	bcdDevice = pdx->udev->descriptor.bcdDevice;
+	i = (bcdDevice >> 8);
+	if (i == 0)
+		pdx->s1401Type = TYPEU1401;
+	else if ((i >= 1) && (i <= 23))
+		pdx->s1401Type = i + 2;
+	else {
+		dev_err(&interface->dev, "%s Unknown device. bcdDevice = %d",
+			__func__, bcdDevice);
+		goto error;
+	}
+	// set up the endpoint information. We only care about the number of EP as
+	// we know that we are dealing with a 1401 device.
+	iface_desc = interface->cur_altsetting;
+	pdx->nPipes = iface_desc->desc.bNumEndpoints;
+	dev_info(&interface->dev, "1401Type=%d with %d End Points",
+		 pdx->s1401Type, pdx->nPipes);
+	if ((pdx->nPipes < 3) || (pdx->nPipes > 4))
+		goto error;
+
+	// Allocate the URBs we hold for performing transfers
+	pdx->pUrbCharOut = usb_alloc_urb(0, GFP_KERNEL);	// character output URB
+	pdx->pUrbCharIn = usb_alloc_urb(0, GFP_KERNEL);	// character input URB
+	pdx->pStagedUrb = usb_alloc_urb(0, GFP_KERNEL);	// block transfer URB
+	if (!pdx->pUrbCharOut || !pdx->pUrbCharIn || !pdx->pStagedUrb) {
+		dev_err(&interface->dev, "%s URB alloc failed", __func__);
+		goto error;
+	}
+
+	pdx->pCoherStagedIO =
+	    usb_alloc_coherent(pdx->udev, STAGED_SZ, GFP_KERNEL,
+			       &pdx->pStagedUrb->transfer_dma);
+	pdx->pCoherCharOut =
+	    usb_alloc_coherent(pdx->udev, OUTBUF_SZ, GFP_KERNEL,
+			       &pdx->pUrbCharOut->transfer_dma);
+	pdx->pCoherCharIn =
+	    usb_alloc_coherent(pdx->udev, INBUF_SZ, GFP_KERNEL,
+			       &pdx->pUrbCharIn->transfer_dma);
+	if (!pdx->pCoherCharOut || !pdx->pCoherCharIn || !pdx->pCoherStagedIO) {
+		dev_err(&interface->dev, "%s Coherent buffer alloc failed",
+			__func__);
+		goto error;
+	}
+
+	for (i = 0; i < pdx->nPipes; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+		pdx->epAddr[i] = endpoint->bEndpointAddress;
+		dev_info(&interface->dev, "Pipe %d, ep address %02x", i,
+			 pdx->epAddr[i]);
+		if (((pdx->nPipes == 3) && (i == 0)) ||	// if char input end point
+		    ((pdx->nPipes == 4) && (i == 1))) {
+			pdx->bInterval = endpoint->bInterval;	// save the endpoint interrupt interval
+			dev_info(&interface->dev, "Pipe %d, bInterval = %d", i,
+				 pdx->bInterval);
+		}
+		// Detect USB2 by checking last ep size (64 if USB1)
+		if (i == pdx->nPipes - 1)	// if this is the last ep (bulk)
+		{
+			pdx->bIsUSB2 =
+			    le16_to_cpu(endpoint->wMaxPacketSize) > 64;
+			dev_info(&pdx->interface->dev, "USB%d",
+				 pdx->bIsUSB2 + 1);
+		}
+	}
+
+	/* save our data pointer in this interface device */
+	usb_set_intfdata(interface, pdx);
+
+	/* we can register the device now, as it is ready */
+	retval = usb_register_dev(interface, &ced_class);
+	if (retval) {
+		/* something prevented us from registering this driver */
+		dev_err(&interface->dev,
+			"Not able to get a minor for this device.\n");
+		usb_set_intfdata(interface, NULL);
+		goto error;
+	}
+
+	/* let the user know what node this device is now attached to */
+	dev_info(&interface->dev,
+		 "USB CEDUSB device now attached to cedusb #%d",
+		 interface->minor);
+	return 0;
+
+error:
+	if (pdx)
+		kref_put(&pdx->kref, ced_delete);	// frees allocated memory
+	return retval;
+}
+
+static void ced_disconnect(struct usb_interface *interface)
+{
+	DEVICE_EXTENSION *pdx = usb_get_intfdata(interface);
+	int minor = interface->minor;	// save for message at the end
+	int i;
+
+	usb_set_intfdata(interface, NULL);	// remove the pdx from the interface
+	usb_deregister_dev(interface, &ced_class);	// give back our minor device number
+
+	mutex_lock(&pdx->io_mutex);	// stop more I/O starting while...
+	ced_draw_down(pdx);	// ...wait for then kill any io
+	for (i = 0; i < MAX_TRANSAREAS; ++i) {
+		int iErr = ClearArea(pdx, i);	// ...release any used memory
+		if (iErr == U14ERR_UNLOCKFAIL)
+			dev_err(&pdx->interface->dev, "%s Area %d was in used",
+				__func__, i);
+	}
+	pdx->interface = NULL;	// ...we kill off link to interface
+	mutex_unlock(&pdx->io_mutex);
+
+	usb_kill_anchored_urbs(&pdx->submitted);
+
+	kref_put(&pdx->kref, ced_delete);	// decrement our usage count
+
+	dev_info(&interface->dev, "USB cedusb #%d now disconnected", minor);
+}
+
+// Wait for all the urbs we know of to be done with, then kill off any that
+// are left. NBNB we will need to have a mechanism to stop circular xfers
+// from trying to fire off more urbs. We will wait up to 3 seconds for Urbs
+// to be done.
+void ced_draw_down(DEVICE_EXTENSION * pdx)
+{
+	int time;
+	dev_dbg(&pdx->interface->dev, "%s called", __func__);
+
+	pdx->bInDrawDown = true;
+	time = usb_wait_anchor_empty_timeout(&pdx->submitted, 3000);
+	if (!time)		// if we timed out we kill the urbs
+	{
+		usb_kill_anchored_urbs(&pdx->submitted);
+		dev_err(&pdx->interface->dev, "%s timed out", __func__);
+	}
+	pdx->bInDrawDown = false;
+}
+
+static int ced_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	DEVICE_EXTENSION *pdx = usb_get_intfdata(intf);
+	if (!pdx)
+		return 0;
+	ced_draw_down(pdx);
+
+	dev_dbg(&pdx->interface->dev, "%s called", __func__);
+	return 0;
+}
+
+static int ced_resume(struct usb_interface *intf)
+{
+	DEVICE_EXTENSION *pdx = usb_get_intfdata(intf);
+	if (!pdx)
+		return 0;
+	dev_dbg(&pdx->interface->dev, "%s called", __func__);
+	return 0;
+}
+
+static int ced_pre_reset(struct usb_interface *intf)
+{
+	DEVICE_EXTENSION *pdx = usb_get_intfdata(intf);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+	mutex_lock(&pdx->io_mutex);
+	ced_draw_down(pdx);
+	return 0;
+}
+
+static int ced_post_reset(struct usb_interface *intf)
+{
+	DEVICE_EXTENSION *pdx = usb_get_intfdata(intf);
+	dev_dbg(&pdx->interface->dev, "%s", __func__);
+
+	/* we are sure no URBs are active - no locking needed */
+	pdx->errors = -EPIPE;
+	mutex_unlock(&pdx->io_mutex);
+
+	return 0;
+}
+
+static struct usb_driver ced_driver = {
+	.name = "cedusb",
+	.probe = ced_probe,
+	.disconnect = ced_disconnect,
+	.suspend = ced_suspend,
+	.resume = ced_resume,
+	.pre_reset = ced_pre_reset,
+	.post_reset = ced_post_reset,
+	.id_table = ced_table,
+	.supports_autosuspend = 1,
+};
+
+module_usb_driver(ced_driver);
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/ced1401/usb1401.h b/drivers/staging/ced1401/usb1401.h
new file mode 100644
index 00000000000..331ca985982
--- /dev/null
+++ b/drivers/staging/ced1401/usb1401.h
@@ -0,0 +1,249 @@
+/* usb1401.h
+ Header file for the CED 1401 USB device driver for Linux
+ Copyright (C) 2010 Cambridge Electronic Design Ltd
+ Author Greg P Smith (greg@ced.co.uk)
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+#ifndef __USB1401_H__
+#define __USB1401_H__
+#include "use1401.h"
+#include "ced_ioctl.h"
+
+#ifndef UINT
+#define UINT unsigned int
+#endif
+
+/// Device type codes, but these don't need to be extended - a succession is assumed
+/// These are set for usb from the bcdDevice field (suitably mangled). Future devices
+/// will be added in order of device creation to the list, so the names here are just
+/// to help use remember which device is which. The U14ERR_... values follow the same
+/// pattern for modern devices.
+#define TYPEUNKNOWN        -1             // dont know
+#define TYPE1401           0              // standard 1401
+#define TYPEPLUS           1              // 1401 plus
+#define TYPEU1401          2              // u1401
+#define TYPEPOWER          3              // Power1401
+#define TYPEU14012         4              // u1401 mkII
+#define TYPEPOWER2         5              // Power1401 mk II
+#define TYPEMICRO3         6              // Micro1401-3
+#define TYPEPOWER3         7              // Power1401-3
+
+/// Some useful defines of constants. DONT FORGET to change the version in the
+/// resources whenever you change it here!.
+#define DRIVERMAJREV      2             // driver revision level major (match windows)
+#define DRIVERMINREV      0             // driver revision level minor
+
+/// Definitions of the various block transfer command codes
+#define TM_EXTTOHOST    8               // extended tohost
+#define TM_EXTTO1401    9               // extended to1401
+
+/// Definitions of values in usbReqtype. Used in sorting out setup actions
+#define H_TO_D 0x00
+#define D_TO_H 0x80
+#define VENDOR 0x40
+#define DEVREQ 0x00
+#define INTREQ 0x01
+#define ENDREQ 0x02
+
+/// Definition of values in usbRequest, again used to sort out setup
+#define GET_STATUS      0x00
+#define CLEAR_FEATURE   0x01
+#define SET_FEATURE     0x03
+#define SET_ADDRESS     0x05
+#define GET_DESC        0x06
+#define SET_DESC        0x07
+#define GET_CONF        0x08
+#define SET_CONF        0x09
+#define GET_INTERFACE   0x0a
+#define SET_INTERFACE   0x0b
+#define SYNCH_FRAME     0x0c
+
+/// Definitions of the various debug command codes understood by the 1401. These
+/// are used in various vendor-specific commands to achieve the desired effect
+#define DB_GRAB         0x50            /* Grab is a NOP for USB */
+#define DB_FREE         0x51            /* Free is a NOP for the USB */
+#define DB_SETADD       0x52            /* Set debug address (double) */
+#define DB_SELFTEST     0x53            /* Start self test */
+#define DB_SETMASK      0x54            /* Set enable mask (double) */
+#define DB_SETDEF       0x55            /* Set default mask (double) */
+#define DB_PEEK         0x56            /* Peek address, save result */
+#define DB_POKE         0x57            /* Poke address with data (double) */
+#define DB_RAMPD        0x58            /* Ramp data at debug address */
+#define DB_RAMPA        0x59            /* Ramp address bus */
+#define DB_REPEATS      0x5A            /* Set repeats for operations (double) */
+#define DB_WIDTH        0x5B            /* Set width for operations (byte) */
+#define DB_DATA         0x5C            /* Get 4-byte data read by PEEK */
+#define DB_CHARS        0x5D            /* Send chars via EP0 control write */
+
+#define CR_CHAR          0x0D           /* The carriage return character */
+#define CR_CHAR_80       0x8d           /*  and with bit 7 set */
+
+/// A structure holding information about a block of memory for use in circular transfers
+typedef struct circBlk
+{
+    volatile UINT dwOffset;             /* Offset within area of block start */
+    volatile UINT dwSize;               /* Size of the block, in bytes (0 = unused) */
+} CIRCBLK;
+
+/// A structure holding all of the information about a transfer area - an area of
+///  memory set up for use either as a source or destination in DMA transfers.
+typedef struct transarea
+{
+    void*       lpvBuff;                // User address of xfer area saved for completeness
+    UINT        dwBaseOffset;           // offset to start of xfer area in first page
+    UINT        dwLength;               // Length of xfer area, in bytes
+    struct page **pPages;               // Points at array of locked down pages
+    int         nPages;                 // number of pages that are locked down
+    bool        bUsed;                  // Is this structure in use?
+    bool        bCircular;              // Is this area for circular transfers?
+    bool        bCircToHost;            // Flag for direction of circular transfer
+    bool        bEventToHost;           // Set event on transfer to host?
+    int         iWakeUp;                // Set 1 on event, cleared by TestEvent()
+    UINT        dwEventSt;              // Defines section within xfer area for...
+    UINT        dwEventSz;              // ...notification by the event SZ is 0 if unset
+    CIRCBLK     aBlocks[2];             // Info on a pair of circular blocks
+    wait_queue_head_t wqEvent;          // The wait queue for events in this area MUST BE LAST
+} TRANSAREA;
+
+/// The DMADESC structure is used to hold information on the transfer in progress. It
+/// is set up by ReadDMAInfo, using information sent by the 1401 in an escape sequence.
+typedef struct dmadesc
+{
+    unsigned short wTransType;          /* transfer type as TM_xxx above        */
+    unsigned short wIdent;              /* identifier word                      */
+    unsigned int   dwSize;              /* bytes to transfer                    */
+    unsigned int   dwOffset;            /* offset into transfer area for trans  */
+    bool           bOutWard;            /* true when data is going TO 1401      */
+} DMADESC;
+
+#define INBUF_SZ         256            /* input buffer size */
+#define OUTBUF_SZ        256            /* output buffer size */
+#define STAGED_SZ 0x10000               // size of coherent buffer for staged transfers
+
+/// Structure to hold all of our device specific stuff. We are making this as similar as we
+/// can to the Windows driver to help in our understanding of what is going on.
+typedef struct _DEVICE_EXTENSION
+{
+    char inputBuffer[INBUF_SZ];         /* The two buffers */
+    char outputBuffer[OUTBUF_SZ];       /* accessed by the host functions */
+    volatile unsigned int dwNumInput;   /* num of chars in input buffer   */
+    volatile unsigned int dwInBuffGet;  /* where to get from input buffer */
+    volatile unsigned int dwInBuffPut;  /* where to put into input buffer */
+    volatile unsigned int dwNumOutput;  /* num of chars in output buffer  */
+    volatile unsigned int dwOutBuffGet; /* where to get from output buffer*/
+    volatile unsigned int dwOutBuffPut; /* where to put into output buffer*/
+
+    volatile bool bSendCharsPending;    /* Flag to indicate sendchar active */
+    volatile bool bReadCharsPending;    /* Flag to indicate a read is primed */
+    char* pCoherCharOut;                /* special aligned buffer for chars to 1401 */
+    struct urb* pUrbCharOut;            /* urb used for chars to 1401 */
+    char* pCoherCharIn;                 /* special aligned buffer for chars to host */
+    struct urb* pUrbCharIn;             /* urb used for chars to host */
+
+    spinlock_t charOutLock;             /* to protect the outputBuffer and outputting */
+    spinlock_t charInLock;              /* to protect the inputBuffer and char reads */
+    __u8 bInterval;                     /* Interrupt end point interval */
+
+    volatile unsigned int dwDMAFlag;    /* state of DMA */
+    TRANSAREA rTransDef[MAX_TRANSAREAS];/* transfer area info */
+    volatile DMADESC rDMAInfo;          // info on current DMA transfer
+    volatile bool bXFerWaiting;         // Flag set if DMA transfer stalled
+    volatile bool bInDrawDown;          // Flag that we want to halt transfers
+
+    // Parameters relating to a block read\write that is in progress. Some of these values
+    //  are equivalent to values in rDMAInfo. The values here are those in use, while those
+    //  in rDMAInfo are those recieved from the 1401 via an escape sequence. If another
+    //  escape sequence arrives before the previous xfer ends, rDMAInfo values are updated while these
+    //  are used to finish off the current transfer.
+    volatile short StagedId;            // The transfer area id for this transfer
+    volatile bool StagedRead;           // Flag TRUE for read from 1401, FALSE for write
+    volatile unsigned int StagedLength; // Total length of this transfer
+    volatile unsigned int StagedOffset; // Offset within memory area for transfer start
+    volatile unsigned int StagedDone;   // Bytes transferred so far
+    volatile bool bStagedUrbPending;    // Flag to indicate active
+    char* pCoherStagedIO;               // buffer used for block transfers
+    struct urb* pStagedUrb;             // The URB to use
+    spinlock_t stagedLock;              // protects ReadWriteMem() and circular buffer stuff
+
+    short s1401Type;                    // type of 1401 attached
+    short sCurrentState;                // current error state
+    bool bIsUSB2;                       // type of the interface we connect to
+    bool bForceReset;                   // Flag to make sure we get a real reset
+    __u32 statBuf[2];                   // buffer for 1401 state info
+
+    unsigned long ulSelfTestTime;       // used to timeout self test
+
+    int nPipes;                         // Should be 3 or 4 depending on 1401 usb chip
+    int bPipeError[4];                  // set non-zero if an error on one of the pipe
+    __u8 epAddr[4];                     // addresses of the 3/4 end points
+
+    struct usb_device *udev;            // the usb device for this device
+    struct usb_interface *interface;    // the interface for this device, NULL if removed
+    struct usb_anchor submitted;        // in case we need to retract our submissions
+    struct mutex io_mutex;              // synchronize I/O with disconnect, one user-mode caller at a time
+
+    int    errors;                      // the last request tanked
+    int    open_count;                  // count the number of openers
+    spinlock_t err_lock;                // lock for errors
+    struct kref kref;
+}DEVICE_EXTENSION, *PDEVICE_EXTENSION;
+#define to_DEVICE_EXTENSION(d) container_of(d, DEVICE_EXTENSION, kref)
+
+/// Definitions of routimes used between compilation object files
+// in usb1401.c
+extern int Allowi(DEVICE_EXTENSION* pdx, bool bInCallback);
+extern int SendChars(DEVICE_EXTENSION* pdx);
+extern void ced_draw_down(DEVICE_EXTENSION *pdx);
+extern int ReadWriteMem(DEVICE_EXTENSION *pdx, bool Read, unsigned short wIdent,
+                      unsigned int dwOffs, unsigned int dwLen);
+
+// in ced_ioc.c
+extern int ClearArea(DEVICE_EXTENSION *pdx, int nArea);
+extern int SendString(DEVICE_EXTENSION* pdx, const char __user* pData, unsigned int n);
+extern int SendChar(DEVICE_EXTENSION *pdx, char c);
+extern int Get1401State(DEVICE_EXTENSION* pdx, __u32* state, __u32* error);
+extern int ReadWrite_Cancel(DEVICE_EXTENSION *pdx);
+extern bool Is1401(DEVICE_EXTENSION* pdx);
+extern bool QuickCheck(DEVICE_EXTENSION* pdx, bool bTestBuff, bool bCanReset);
+extern int Reset1401(DEVICE_EXTENSION *pdx);
+extern int GetChar(DEVICE_EXTENSION *pdx);
+extern int GetString(DEVICE_EXTENSION *pdx, char __user* pUser, int n);
+extern int SetTransfer(DEVICE_EXTENSION *pdx, TRANSFERDESC __user *pTD);
+extern int UnsetTransfer(DEVICE_EXTENSION *pdx, int nArea);
+extern int SetEvent(DEVICE_EXTENSION *pdx, TRANSFEREVENT __user*pTE);
+extern int Stat1401(DEVICE_EXTENSION *pdx);
+extern int LineCount(DEVICE_EXTENSION *pdx);
+extern int GetOutBufSpace(DEVICE_EXTENSION *pdx);
+extern int GetTransfer(DEVICE_EXTENSION *pdx, TGET_TX_BLOCK __user *pGTB);
+extern int KillIO1401(DEVICE_EXTENSION *pdx);
+extern int BlkTransState(DEVICE_EXTENSION *pdx);
+extern int StateOf1401(DEVICE_EXTENSION *pdx);
+extern int StartSelfTest(DEVICE_EXTENSION *pdx);
+extern int CheckSelfTest(DEVICE_EXTENSION *pdx, TGET_SELFTEST __user *pGST);
+extern int TypeOf1401(DEVICE_EXTENSION *pdx);
+extern int TransferFlags(DEVICE_EXTENSION *pdx);
+extern int DbgPeek(DEVICE_EXTENSION *pdx, TDBGBLOCK __user* pDB);
+extern int DbgPoke(DEVICE_EXTENSION *pdx, TDBGBLOCK __user *pDB);
+extern int DbgRampData(DEVICE_EXTENSION *pdx, TDBGBLOCK __user *pDB);
+extern int DbgRampAddr(DEVICE_EXTENSION *pdx, TDBGBLOCK __user *pDB);
+extern int DbgGetData(DEVICE_EXTENSION *pdx, TDBGBLOCK __user *pDB);
+extern int DbgStopLoop(DEVICE_EXTENSION *pdx);
+extern int SetCircular(DEVICE_EXTENSION *pdx, TRANSFERDESC __user *pTD);
+extern int GetCircBlock(DEVICE_EXTENSION *pdx, TCIRCBLOCK __user* pCB);
+extern int FreeCircBlock(DEVICE_EXTENSION *pdx, TCIRCBLOCK __user* pCB);
+extern int WaitEvent(DEVICE_EXTENSION *pdx, int nArea, int msTimeOut);
+extern int TestEvent(DEVICE_EXTENSION *pdx, int nArea);
+#endif
diff --git a/drivers/staging/ced1401/use1401.h b/drivers/staging/ced1401/use1401.h
new file mode 100644
index 00000000000..86294e21db0
--- /dev/null
+++ b/drivers/staging/ced1401/use1401.h
@@ -0,0 +1,287 @@
+/****************************************************************************
+** use1401.h
+** Copyright (C) Cambridge Electronic Design Ltd, 1992-2010
+** Authors: Paul Cox, Tim Bergel, Greg Smith
+** See CVS for revisions.
+**
+** Because the size of a long is different between 32-bit and 64-bit on some
+** systems, we avoid this in this interface.
+****************************************************************************/
+#ifndef __USE1401_H__
+#define __USE1401_H__
+#include "machine.h"
+
+// Some definitions to make things compatible. If you want to use Use1401 directly
+//  from a Windows program you should define U14_NOT_DLL, in which case you also
+//  MUST make sure that your application startup code calls U14InitLib().
+// DLL_USE1401 is defined when you are building the Use1401 dll, not otherwise.
+#ifdef _IS_WINDOWS_
+#ifndef U14_NOT_DLL
+#ifdef DLL_USE1401
+#define U14API(retType) retType DllExport __stdcall
+#else
+#define U14API(retType) retType DllImport __stdcall
+#endif
+#endif
+
+#define U14ERRBASE -500
+#define U14LONG long
+#endif
+
+#ifdef LINUX
+#define U14ERRBASE -1000
+#define U14LONG int
+#endif
+
+#ifdef _QT
+#ifndef U14_NOT_DLL
+#undef U14API
+#define U14API(retType) retType __declspec(dllimport) __stdcall
+#endif
+#undef U14LONG
+#define U14LONG int
+#endif
+
+#ifndef U14API
+#define U14API(retType) retType
+#endif
+
+#ifndef U14LONG
+#define U14LONG long
+#endif
+
+/// Error codes: We need them here as user space can see them.
+#define U14ERR_NOERROR        0             // no problems
+
+/// Device error codes, but these don't need to be extended - a succession is assumed
+#define U14ERR_STD            4              // standard 1401 connected
+#define U14ERR_U1401          5              // u1401 connected
+#define U14ERR_PLUS           6              // 1401 plus connected
+#define U14ERR_POWER          7              // Power1401 connected
+#define U14ERR_U14012         8              // u1401 mkII connected
+#define U14ERR_POWER2         9
+#define U14ERR_U14013        10
+#define U14ERR_POWER3        11
+
+/// NBNB Error numbers need shifting as some linux error codes start at 512
+#define U14ERR(n)             (n+U14ERRBASE)
+#define U14ERR_OFF            U14ERR(0)      /* 1401 there but switched off    */
+#define U14ERR_NC             U14ERR(-1)     /* 1401 not connected             */
+#define U14ERR_ILL            U14ERR(-2)     /* if present it is ill           */
+#define U14ERR_NOIF           U14ERR(-3)     /* I/F card missing               */
+#define U14ERR_TIME           U14ERR(-4)     /* 1401 failed to come ready      */
+#define U14ERR_BADSW          U14ERR(-5)     /* I/F card bad switches          */
+#define U14ERR_PTIME          U14ERR(-6)     /* 1401plus failed to come ready  */
+#define U14ERR_NOINT          U14ERR(-7)     /* couldn't grab the int vector   */
+#define U14ERR_INUSE          U14ERR(-8)     /* 1401 is already in use         */
+#define U14ERR_NODMA          U14ERR(-9)     /* couldn't get DMA channel       */
+#define U14ERR_BADHAND        U14ERR(-10)    /* handle provided was bad        */
+#define U14ERR_BAD1401NUM     U14ERR(-11)    /* 1401 number provided was bad   */
+
+#define U14ERR_NO_SUCH_FN     U14ERR(-20)    /* no such function               */
+#define U14ERR_NO_SUCH_SUBFN  U14ERR(-21)    /* no such sub function           */
+#define U14ERR_NOOUT          U14ERR(-22)    /* no room in output buffer       */
+#define U14ERR_NOIN           U14ERR(-23)    /* no input in buffer             */
+#define U14ERR_STRLEN         U14ERR(-24)    /* string longer than buffer      */
+#define U14ERR_ERR_STRLEN     U14ERR(-24)    /* string longer than buffer      */
+#define U14ERR_LOCKFAIL       U14ERR(-25)    /* failed to lock memory          */
+#define U14ERR_UNLOCKFAIL     U14ERR(-26)    /* failed to unlock memory        */
+#define U14ERR_ALREADYSET     U14ERR(-27)    /* area already set up            */
+#define U14ERR_NOTSET         U14ERR(-28)    /* area not set up                */
+#define U14ERR_BADAREA        U14ERR(-29)    /* illegal area number            */
+#define U14ERR_FAIL           U14ERR(-30)    /* we failed for some other reason*/
+
+#define U14ERR_NOFILE         U14ERR(-40)    /* command file not found         */
+#define U14ERR_READERR        U14ERR(-41)    /* error reading command file     */
+#define U14ERR_UNKNOWN        U14ERR(-42)    /* unknown command                */
+#define U14ERR_HOSTSPACE      U14ERR(-43)    /* not enough host space to load  */
+#define U14ERR_LOCKERR        U14ERR(-44)    /* could not lock resource/command*/
+#define U14ERR_CLOADERR       U14ERR(-45)    /* CLOAD command failed           */
+
+#define U14ERR_TOXXXERR       U14ERR(-60)    /* tohost/1401 failed             */
+#define U14ERR_NO386ENH       U14ERR(-80)    /* not 386 enhanced mode          */
+#define U14ERR_NO1401DRIV     U14ERR(-81)    /* no device driver               */
+#define U14ERR_DRIVTOOOLD     U14ERR(-82)    /* device driver too old          */
+
+#define U14ERR_TIMEOUT        U14ERR(-90)    /* timeout occurred               */
+
+#define U14ERR_BUFF_SMALL     U14ERR(-100)   /* buffer for getstring too small */
+#define U14ERR_CBALREADY      U14ERR(-101)   /* there is already a callback    */
+#define U14ERR_BADDEREG       U14ERR(-102)   /* bad parameter to deregcallback */
+#define U14ERR_NOMEMORY       U14ERR(-103)   /* no memory for allocation       */
+
+#define U14ERR_DRIVCOMMS      U14ERR(-110)   /* failed talking to driver       */
+#define U14ERR_OUTOFMEMORY    U14ERR(-111)   /* needed memory and couldnt get it*/
+
+/// 1401 type codes.
+#define U14TYPE1401           0           /* standard 1401                  */
+#define U14TYPEPLUS           1           /* 1401 plus                      */
+#define U14TYPEU1401          2           /* u1401                          */
+#define U14TYPEPOWER          3           /* power1401                      */
+#define U14TYPEU14012         4           /* u1401 mk II                    */
+#define U14TYPEPOWER2         5           /* power1401 mk II                */
+#define U14TYPEU14013         6           /* u1401-3                        */
+#define U14TYPEPOWER3         7           /* power1401-3                    */
+#define U14TYPEUNKNOWN        -1          /* dont know                      */
+
+/// Transfer flags to allow driver capabilities to be interrogated
+
+/// Constants for transfer flags
+#define U14TF_USEDMA          1           /* Transfer flag for use DMA      */
+#define U14TF_MULTIA          2           /* Transfer flag for multi areas  */
+#define U14TF_FIFO            4           /* for FIFO interface card        */
+#define U14TF_USB2            8           /* for USB2 interface and 1401    */
+#define U14TF_NOTIFY          16          /* for event notifications        */
+#define U14TF_SHORT           32          /* for PCI can short cycle        */
+#define U14TF_PCI2            64          /* for new PCI card 1401-70       */
+#define U14TF_CIRCTH          128         /* Circular-mode to host          */
+#define U14TF_DIAG            256         /* Diagnostics/debug functions    */
+#define U14TF_CIRC14          512         /* Circular-mode to 1401          */
+
+/// Definitions of element sizes for DMA transfers - to allow byte-swapping
+#define ESZBYTES              0           /* BYTE element size value        */
+#define ESZWORDS              1           /* WORD element size value        */
+#define ESZLONGS              2           /* long element size value        */
+#define ESZUNKNOWN            0           /* unknown element size value     */
+
+/// These define required access types for the debug/diagnostics function
+#define BYTE_SIZE             1           /* 8-bit access                   */
+#define WORD_SIZE             2           /* 16-bit access                  */
+#define LONG_SIZE             3           /* 32-bit access                  */
+
+/// Stuff used by U14_GetTransfer
+#define GET_TX_MAXENTRIES  257          /* (max length / page size + 1) */
+
+#ifdef _IS_WINDOWS_
+#pragma pack(1)
+
+typedef struct                          /* used for U14_GetTransfer results */
+{                                          /* Info on a single mapped block */
+   U14LONG physical;
+   U14LONG size;
+} TXENTRY;
+
+typedef struct TGetTxBlock              /* used for U14_GetTransfer results */
+{                                               /* matches structure in VXD */
+   U14LONG size;
+   U14LONG linear;
+   short   seg;
+   short   reserved;
+   short   avail;                      /* number of available entries */
+   short   used;                       /* number of used entries */
+   TXENTRY entries[GET_TX_MAXENTRIES];       /* Array of mapped block info */
+} TGET_TX_BLOCK;
+
+typedef TGET_TX_BLOCK *LPGET_TX_BLOCK;
+
+#pragma pack()
+#endif
+
+#ifdef LINUX
+typedef struct                          /* used for U14_GetTransfer results */
+{                                       /* Info on a single mapped block */
+   long long physical;
+   long     size;
+} TXENTRY;
+
+typedef struct TGetTxBlock              /* used for U14_GetTransfer results */
+{                                       /* matches structure in VXD */
+   long long linear;                    /* linear address */
+   long     size;                       /* total size of the mapped area, holds id when called */
+   short    seg;                        /* segment of the address for Win16 */
+   short    reserved;
+   short    avail;                      /* number of available entries */
+   short    used;                       /* number of used entries */
+   TXENTRY  entries[GET_TX_MAXENTRIES]; /* Array of mapped block info */
+} TGET_TX_BLOCK;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+U14API(int)   U14WhenToTimeOut(short hand);         // when to timeout in ms
+U14API(short) U14PassedTime(int iTime);             // non-zero if iTime passed
+
+U14API(short) U14LastErrCode(short hand);
+
+U14API(short) U14Open1401(short n1401);
+U14API(short) U14Close1401(short hand);
+U14API(short) U14Reset1401(short hand);
+U14API(short) U14ForceReset(short hand);
+U14API(short) U14TypeOf1401(short hand);
+U14API(short) U14NameOf1401(short hand, char* pBuf, WORD wMax);
+
+U14API(short) U14Stat1401(short hand);
+U14API(short) U14CharCount(short hand);
+U14API(short) U14LineCount(short hand);
+
+U14API(short) U14SendString(short hand, const char* pString);
+U14API(short) U14GetString(short hand, char* pBuffer, WORD wMaxLen);
+U14API(short) U14SendChar(short hand, char cChar);
+U14API(short) U14GetChar(short hand, char* pcChar);
+
+U14API(short) U14LdCmd(short hand, const char* command);
+U14API(DWORD) U14Ld(short hand, const char* vl, const char* str);
+
+U14API(short) U14SetTransArea(short hand, WORD wArea, void *pvBuff,
+                                            DWORD dwLength, short eSz);
+U14API(short) U14UnSetTransfer(short hand, WORD wArea);
+U14API(short) U14SetTransferEvent(short hand, WORD wArea, BOOL bEvent,
+                                  BOOL bToHost, DWORD dwStart, DWORD dwLength);
+U14API(int)   U14TestTransferEvent(short hand, WORD wArea);
+U14API(int)   U14WaitTransferEvent(short hand, WORD wArea, int msTimeOut);
+U14API(short) U14GetTransfer(short hand, TGET_TX_BLOCK *pTransBlock);
+
+U14API(short) U14ToHost(short hand, char* pAddrHost,DWORD dwSize,DWORD dw1401,
+                                                            short eSz);
+U14API(short) U14To1401(short hand, const char* pAddrHost,DWORD dwSize,DWORD dw1401,
+                                                            short eSz);
+
+U14API(short) U14SetCircular(short hand, WORD wArea, BOOL bToHost, void *pvBuff,
+                                         DWORD dwLength);
+
+U14API(int)   U14GetCircBlk(short hand, WORD wArea, DWORD *pdwOffs);
+U14API(int)   U14FreeCircBlk(short hand, WORD wArea, DWORD dwOffs, DWORD dwSize,
+                                         DWORD *pdwOffs);
+
+U14API(short) U14StrToLongs(const char* pszBuff, U14LONG *palNums, short sMaxLongs);
+U14API(short) U14LongsFrom1401(short hand, U14LONG *palBuff, short sMaxLongs);
+
+U14API(void)  U14SetTimeout(short hand, int lTimeout);
+U14API(int)   U14GetTimeout(short hand);
+U14API(short) U14OutBufSpace(short hand);
+U14API(int)   U14BaseAddr1401(short hand);
+U14API(int)   U14DriverVersion(short hand);
+U14API(int)   U14DriverType(short hand);
+U14API(short) U14DriverName(short hand, char* pBuf, WORD wMax);
+U14API(short) U14GetUserMemorySize(short hand, DWORD *pMemorySize);
+U14API(short) U14KillIO1401(short hand);
+
+U14API(short) U14BlkTransState(short hand);
+U14API(short) U14StateOf1401(short hand);
+
+U14API(short) U14Grab1401(short hand);
+U14API(short) U14Free1401(short hand);
+U14API(short) U14Peek1401(short hand, DWORD dwAddr, int nSize, int nRepeats);
+U14API(short) U14Poke1401(short hand, DWORD dwAddr, DWORD dwValue, int nSize, int nRepeats);
+U14API(short) U14Ramp1401(short hand, DWORD dwAddr, DWORD dwDef, DWORD dwEnable, int nSize, int nRepeats);
+U14API(short) U14RampAddr(short hand, DWORD dwDef, DWORD dwEnable, int nSize, int nRepeats);
+U14API(short) U14StopDebugLoop(short hand);
+U14API(short) U14GetDebugData(short hand, U14LONG *plValue);
+
+U14API(short) U14StartSelfTest(short hand);
+U14API(short) U14CheckSelfTest(short hand, U14LONG *pData);
+U14API(short) U14TransferFlags(short hand);
+U14API(void)  U14GetErrorString(short nErr, char* pStr, WORD wMax);
+U14API(int)   U14MonitorRev(short hand);
+U14API(void)  U14CloseAll(void);
+
+U14API(short) U14WorkingSet(DWORD dwMinKb, DWORD dwMaxKb);
+U14API(int)   U14InitLib(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* End of ifndef __USE1401_H__ */
diff --git a/drivers/staging/ced1401/use14_ioc.h b/drivers/staging/ced1401/use14_ioc.h
new file mode 100644
index 00000000000..15ca6388838
--- /dev/null
+++ b/drivers/staging/ced1401/use14_ioc.h
@@ -0,0 +1,301 @@
+/* use14_ioc.h
+** definitions of use1401 module stuff that is shared between use1401 and the driver.
+** Copyright (C) Cambridge Electronic Design Limited 2010
+** Author Greg P Smith
+************************************************************************************/
+#ifndef __USE14_IOC_H__
+#define __USE14_IOC_H__
+
+#define  MAX_TRANSAREAS   8   /* The number of transfer areas supported by driver */
+
+#define i386
+#include "winioctl.h"                   /* needed so we can access driver   */
+
+/*
+** Defines for IOCTL functions to ask driver to perform. These must be matched
+** in both use1401 and in the driver. The IOCTL code contains a command
+** identifier, plus other information about the device, the type of access
+** with which the file must have been opened, and the type of buffering.
+** The IOCTL function codes from 0x80 to 0xFF are for developer use.
+*/
+#define  FILE_DEVICE_CED1401    0x8001
+#define  FNNUMBASE              0x800
+
+#define  U14_OPEN1401            CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE,               \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_CLOSE1401           CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+1,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SENDSTRING          CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+2,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_RESET1401           CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+3,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETCHAR             CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+4,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SENDCHAR            CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+5,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_STAT1401            CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+6,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_LINECOUNT           CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+7,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETSTRING           CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+8,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_REGCALLBACK         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+9,             \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETMONITORBUF       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+10,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SETTRANSFER         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+11,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_UNSETTRANSFER       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+12,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SETTRANSEVENT       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+13,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETOUTBUFSPACE      CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+14,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETBASEADDRESS      CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+15,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETDRIVERREVISION   CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+16,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETTRANSFER         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+17,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_KILLIO1401          CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+18,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_BLKTRANSSTATE       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+19,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_BYTECOUNT           CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+20,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_ZEROBLOCKCOUNT      CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+21,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_STOPCIRCULAR        CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+22,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_STATEOF1401         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+23,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_REGISTERS1401       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+24,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GRAB1401            CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+25,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_FREE1401            CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+26,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_STEP1401            CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+27,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SET1401REGISTERS    CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+28,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_STEPTILL1401        CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+29,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SETORIN             CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+30,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_STARTSELFTEST       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+31,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_CHECKSELFTEST       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+32,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_TYPEOF1401          CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+33,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_TRANSFERFLAGS       CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+34,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_DBGPEEK             CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+35,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_DBGPOKE             CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+36,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_DBGRAMPDATA         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+37,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_DBGRAMPADDR         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+38,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_DBGGETDATA          CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+39,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_DBGSTOPLOOP         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+40,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_FULLRESET           CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+41,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_SETCIRCULAR         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+42,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_GETCIRCBLK          CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+43,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+#define  U14_FREECIRCBLK         CTL_CODE( FILE_DEVICE_CED1401,     \
+                                           FNNUMBASE+44,            \
+                                           METHOD_BUFFERED,         \
+                                           FILE_ANY_ACCESS)
+
+//--------------- Structures that are shared with the driver -------------
+#pragma pack(1)
+
+typedef struct                  /* used for get/set standard 1401 registers */
+{
+   short   sPC;
+   char    A;
+   char    X;
+   char    Y;
+   char    stat;
+   char    rubbish;
+} T1401REGISTERS;
+
+typedef union     /* to communicate with 1401 driver status & control funcs */
+{
+   char           chrs[22];
+   short          ints[11];
+   long           longs[5];
+   T1401REGISTERS registers;
+} TCSBLOCK;
+
+typedef TCSBLOCK*  LPTCSBLOCK;
+
+typedef struct paramBlk
+{
+    short       sState;
+    TCSBLOCK    csBlock;
+} PARAMBLK;
+
+typedef PARAMBLK*   PPARAMBLK;
+
+typedef struct TransferDesc          /* Structure and type for SetTransArea */
+{
+   WORD        wArea;            /* number of transfer area to set up       */
+   void FAR *  lpvBuff;          /* address of transfer area                */
+   DWORD       dwLength;         /* length of area to set up                */
+   short       eSize;            /* size to move (for swapping on MAC)      */
+} TRANSFERDESC;
+
+typedef TRANSFERDESC FAR *    LPTRANSFERDESC;
+
+/* This is the structure used to set up a transfer area */
+typedef struct VXTransferDesc    /* use1401.c and use1432x.x use only       */
+{
+   WORD        wArea;            /* number of transfer area to set up       */
+   WORD        wAddrSel;         /* 16 bit selector for area                */
+   DWORD       dwAddrOfs;        /* 32 bit offset for area start            */
+   DWORD       dwLength;         /* length of area to set up                */
+} VXTRANSFERDESC;
+
+#pragma pack()
+
+#endif
\ No newline at end of file
diff --git a/drivers/staging/ced1401/userspace/use1401.c b/drivers/staging/ced1401/userspace/use1401.c
new file mode 100644
index 00000000000..d4c63168ea2
--- /dev/null
+++ b/drivers/staging/ced1401/userspace/use1401.c
@@ -0,0 +1,3035 @@
+/****************************************************************************
+** use1401.c
+** Copyright (C) Cambridge Electronic Design Ltd, 1992-2010
+**
+** This program is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License
+** as published by the Free Software Foundation; either version 2
+** of the License, or (at your option) any later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**
+** Contact CED: Cambridge Electronic Design Limited, Science Park, Milton Road
+**              Cambridge, CB6 0FE.
+**              www.ced.co.uk
+**              greg@ced.co.uk
+**
+**  Title:      USE1401.C
+**  Version:    4.00
+**  Author:     Paul Cox, Tim Bergel, Greg Smith
+**
+** The code was vigorously pruned in DEC 2010 to remove the macintosh options
+** and to get rid of the 16-bit support. It has also been aligned with the
+** Linux version. See CVS for revisions. This will work for Win 9x onwards.
+****************************************************************************
+**
+** Notes on Windows interface to driver
+** ************************************
+**
+** Under Windows 9x and NT, Use1401 uses DeviceIoControl to get access to
+** the 1401 driver. This has parameters for the device handle, the function
+** code, an input pointer and byte count, an output pointer and byte count
+** and a pointer to a DWORD to hold the output byte count. Note that input
+** and output are from the point-of-view of the driver, so the output stuff
+** is used to read values from the 1401, not send to the 1401. The use of
+** these parameters varies with the function in use and the operating
+** system; there are five separate DIOC calls SendString, GetString and
+** SetTransferArea all have their own specialised calls, the rest use the
+** Status1401 or Control1401 functions.
+**
+** There are two basic styles of DIOC call used, one for Win9x VxD drivers
+** and one for NT Kernel-mode and WDM drivers (see below for tables showing
+** the different parameters used. The array bUseNTDIOC[] selects between
+** these two calling styles.
+**
+** Function codes
+** In Win3.x, simple function codes from 0 to 40 were used, shifted left 8
+** bits with a sub-function code in the lower 8 bits. These were also used
+** in the Windows 95 driver, though we had to add 1 to the code value to
+** avoid problems (Open from CreateFile is zero), and the sub-function code
+** is now unused. We found that this gave some problems with Windows 98
+** as the function code values are reserved by microsoft, so we switched to
+** using the NT function codes instead. The NT codes are generated using the
+** CTL_CODE macro, essentially this gives 0x80012000 | (func << 2), where
+** func is the original 0 to 34 value. The driver will handle both types of
+** code and Use1432 only uses the NT codes if it knows the driver is new
+** enough. The array bUseNTCodes[] holds flags on the type of codes required.
+** GPS/TDB Dec 2010: we removed the bUseNTCodes array as this is always true
+** as we no longer support ancient versions.
+**
+** The CreateFile and CloseFile function calls are also handled
+** by DIOC, using the special function codes 0 and -1 respectively.
+**
+** Input pointer and buffer size
+** These are intended for data sent to the device driver. In nearly all cases
+** they are unused in calls to the Win95 driver, the NT driver uses them
+** for all information sent to the driver. The table below shows the pointer
+** and byte count used for the various calls:
+**
+**                      Win 95                  Win NT
+** SendString           NULL, 0                 pStr, nStr
+** GetString            NULL, 0                 NULL, 0
+** SetTransferArea      pBuf, nBuf (unused?)    pDesc, nDesc
+** GetTransfer          NULL, 0                 NULL, 0
+** Status1401           NULL, 0                 NULL, 0
+** Control1401          NULL, 0                 pBlk, nBlk
+**
+** pStr and nStr are pointers to a char buffer and the buffer length for
+** string I/O, note that these are temporary buffers owned by the DLL, not
+** application memory, pBuf and nBuf are the transfer area buffer (I think
+** these are unused), pDesc and nDesc are the TRANSFERDESC structure, pBlk
+** and nBlk are the TCSBLOCK structure.
+**
+**
+** Output pointer and buffer size
+** These are intended for data read from the device driver. These are used
+** for almost all information sent to the Win95 driver, the NT driver uses
+** them for information read from the driver, chiefly the error code. The
+** table below shows the pointer and byte count used for the various calls:
+**
+**                      Win 95                  Win NT
+** SendString           pStr, nStr              pPar, nPar
+** GetString            pStr, nStr+2            pStr, nStr+2
+** SetTransferArea      pDesc, nDesc            pPar, nPar
+** GetTransfer          pGet, nGet              pGet, nGet
+** Status1401           pBlk, nBlk              pPar, nPar
+** Control1401          pBlk, nBlk              pPar, nPar
+**
+** pStr and nStr are pointers to a char buffer and the buffer length for
+** string I/O, the +2 for GetString refers to two spare bytes at the start
+** used to hold the string length and returning an error code for NT. Note
+** again that these are (and must be) DLL-owned temporary buffers. pPar
+** and nPar are a PARAM structure used in NT (it holds an error code and a 
+** TCSBLOCK structure). pDesc and nDesc are the VXTRANSFERDESC structure,
+** pBlk and nBlk are the TCSBLOCK structure. pGet and nGet indicate the
+** TGET_TX_BLOCK structure used for GetTransfer.
+**
+**
+** The output byte count
+** Both drivers return the output buffer size here, regardless of the actual
+** bytes output. This is used to check that we did get through to the driver.
+**
+** Multiple 1401s
+** **************
+**
+** We have code that tries to support the use of multiple 1401s, but there
+** are problems: The lDriverVersion and lDriverType variables are global, not
+** per-1401 (a particular problem as the U14 functions that use them don't
+** have a hand parameter). In addition, the mechansim for finding a free
+** 1401 depends upon the 1401 device driver open operation failing if it's
+** already in use, which doesn't always happen, particularly with the VxDs.
+** The code in TryToOpen tries to fix this by relying on TYPEOF1401 to detect
+** the 1401-in-use state - the VxDs contain special code to help this. This is
+** working OK but multiple 1401 support works better with the Win2000 drivers.
+**
+** USB driver
+** **********
+**
+** The USB driver, which runs on both Win98 and NT2000, uses the NT-style
+** calling convention, both for the DIOC codes and the DIOC parameters. The
+** TryToOpen function has been altered to look for an NT driver first in
+** the appropriate circumstances, and to set the driver DIOC flags up in
+** the correct state.
+**
+** Adding a new 1401 type - now almost nothing to do
+** *************************************************
+**
+** The 1401 types are defined by a set of U14TYPExxxx codes in USE1401.H.
+** You should add a new one of these to keep things tidy for applications.
+**
+** DRIVERET_MAX (below) specifies the maximum allowed type code from the
+** 1401 driver; I have set this high to accomodate as yet undesigned 1401
+** types. Similarly, as long as the command file names follow the ARM,
+** ARN, ARO sequence, these are calculated by the ExtForType function, so
+** you don't need to do anything here either.
+**
+** Version number
+** **************
+** The new U14InitLib() function returns 0 if the OS is incapable of use,
+** otherwise is returns the version of the USE1401 library. This is done
+** in three parts: Major(31-24).Minor(23-16).Revision.(15-0) (brackets are
+** the bits used). The Major number starts at 2 for the first revision with
+** the U14InitLib() function. Changes to the Major version means that we
+** have broken backwards compatibility. Minor number changes mean that we
+** have added new functionality that does not break backwards compatibility.
+** we starts at 0. Revision changes mean we have fixed something. Each index
+** returns to 0 when a higer one changes.
+*/
+#define U14LIB_MAJOR 4
+#define U14LIB_MINOR 0
+#define U14LIB_REVISION 0
+#define U14LIB_VERSION ((U14LIB_MAJOR<<24) | (U14LIB_MINOR<<16) | U14LIB_REVISION)
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "USE1401.H"
+
+#ifdef _IS_WINDOWS_
+#include <io.h>
+#include <windows.h>
+#pragma warning(disable: 4100) /* Disable "Unused formal parameter" warning */
+#include <assert.h>
+#include "process.h"
+
+
+#define sprintf wsprintf
+#define PATHSEP '\\'
+#define PATHSEPSTR "\\"
+#define DEFCMDPATH "\\1401\\"   // default command path if all else fails
+#define MINDRIVERMAJREV 1       // minimum driver revision level we need
+#define __packed                // does nothing in Windows
+
+#include "use14_ioc.h"          // links to device driver stuff
+#endif
+
+#ifdef LINUX
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <sched.h>
+#include <libgen.h>
+#define PATHSEP '/'
+#define PATHSEPSTR "/"
+#define DEFCMDPATH "/var/1401/" // default command path if all else fails
+#define MINDRIVERMAJREV 2       // minimum driver revision level we need
+
+#include "ced_ioctl.h"          // links to device driver stuff
+#endif
+
+#define MAX1401         8       // The number of 1401s that can be supported
+
+/*
+** These are the 1401 type codes returned by the driver, they are a slightly
+** odd sequence & start for reasons of compatability with the DOS driver.
+** The maximum code value is the upper limit of 1401 device types.
+*/
+#define DRIVRET_STD     4       // Codes for 1401 types matching driver values
+#define DRIVRET_U1401   5       // This table does not need extending, as
+#define DRIVRET_PLUS    6       // we can calculate values now.
+#define DRIVRET_POWER   7       // but we need all of these values still
+#define DRIVRET_MAX     26      // Maximum tolerated code - future designs
+
+/*
+** These variables store data that will be used to generate the last
+** error string. For now, a string will hold the 1401 command file name.
+*/
+static char szLastName[20];     // additional text information
+
+/*
+** Information stored per handle. NBNB, driverType and DriverVersion used to be
+** only stored once for all handles... i.e. nonsensical. This change means that
+** three U14...() calls now include handles that were previously void. We have
+** set a constructor and a destructor call for the library (see the end) to
+** initialise important structures, or call use1401_load().
+*/
+static short asDriverType[MAX1401] = {0};
+static int lLastDriverVersion = U14ERR_NO1401DRIV;
+static int lLastDriverType = U14TYPEUNKNOWN;
+static int alDriverVersion[MAX1401];            // version/type of each driver
+static int alTimeOutPeriod[MAX1401];            // timeout time in milliseconds
+static short asLastRetCode[MAX1401];            // last code from a fn call
+static short asType1401[MAX1401] = {0};         // The type of the 1401
+static BOOL abGrabbed[MAX1401] = {0};           // Flag for grabbed, set true by grab1401
+static int iAttached = 0;                       // counts process attaches so can let go
+
+#ifdef _IS_WINDOWS_
+/****************************************************************************
+** Windows NT Specific Variables and internal types
+****************************************************************************/
+static HANDLE aHand1401[MAX1401] = {0};         // handles for 1401s
+static HANDLE aXferEvent[MAX1401] = {0};        // transfer events for the 1401s
+static LPVOID apAreas[MAX1401][MAX_TRANSAREAS]; // Locked areas
+static DWORD  auAreas[MAX1401][MAX_TRANSAREAS]; // Size of locked areas
+static BOOL   bWindows9x = FALSE;               // if we are Windows 95 or better
+#ifdef _WIN64
+#define USE_NT_DIOC(ind) TRUE
+#else
+static BOOL   abUseNTDIOC[MAX1401];             // Use NT-style DIOC parameters */
+#define USE_NT_DIOC(ind) abUseNTDIOC[ind]
+#endif
+
+#endif
+
+#ifdef LINUX
+static int aHand1401[MAX1401] = {0};    // handles for 1401s
+#define INVALID_HANDLE_VALUE 0          // to avoid code differences
+#endif
+
+
+/*
+** The CmdHead relates to backwards compatibility with ancient Microsoft (and Sperry!)
+** versions of BASIC, where this header was needed so we could load a command into
+** memory.
+*/
+#pragma pack(1)                 // pack our structure
+typedef struct CmdHead          // defines header block on command
+{                               // for PC commands
+   char   acBasic[5];           // BASIC information - needed to align things
+   WORD   wBasicSz;             // size as seen by BASIC
+   WORD   wCmdSize;             // size of the following info
+} __packed CMDHEAD;
+#pragma pack()                  // back to normal
+
+/*
+** The rest of the header looks like this...
+**  int    iRelPnt;             relocation pointer... actual start
+**  char   acName[8];           string holding the command name
+**  BYTE   bMonRev;             monitor revision level
+**  BYTE   bCmdRev;             command revision level
+*/
+
+typedef CMDHEAD *LPCMDHEAD;     // pointer to a command header
+
+#define  MAXSTRLEN   255        // maximum string length we use
+#define  TOHOST      FALSE
+#define  TO1401      TRUE
+
+static short CheckHandle(short h)
+{
+    if ((h < 0) || (h >= MAX1401))  // must be legal range...
+        return U14ERR_BADHAND;
+    if (aHand1401[h] <= 0)          // must be open
+        return U14ERR_BADHAND;
+    return U14ERR_NOERROR;
+}
+
+#ifdef _IS_WINDOWS_
+/****************************************************************************
+** U14Status1401    Used for functions which do not pass any data in but
+**                  get data back
+****************************************************************************/
+static short U14Status1401(short sHand, LONG lCode, TCSBLOCK* pBlk)
+{
+    DWORD dwBytes = 0;
+
+    if ((sHand < 0) || (sHand >= MAX1401))  /* Check parameters */
+        return U14ERR_BADHAND;
+#ifndef _WIN64
+    if (!USE_NT_DIOC(sHand)) 
+    {   /* Windows 9x DIOC methods? */
+        if (DeviceIoControl(aHand1401[sHand], lCode, NULL, 0, pBlk,sizeof(TCSBLOCK),&dwBytes,NULL))
+            return (short)((dwBytes>=sizeof(TCSBLOCK)) ? U14ERR_NOERROR : U14ERR_DRIVCOMMS);
+        else
+            return (short)GetLastError();
+    }
+    else
+#endif
+    {                                       /* Windows NT or USB driver */
+        PARAMBLK rWork;
+        rWork.sState = U14ERR_DRIVCOMMS;
+        if (DeviceIoControl(aHand1401[sHand], lCode, NULL, 0, &rWork,sizeof(PARAMBLK),&dwBytes,NULL) &&
+            (dwBytes >= sizeof(PARAMBLK)))
+        {
+            *pBlk = rWork.csBlock;
+            return rWork.sState;
+        }
+    }
+
+    return U14ERR_DRIVCOMMS;
+}
+
+/****************************************************************************
+** U14Control1401   Used for functions which pass data in and only expect
+**                  an error code back
+****************************************************************************/
+static short U14Control1401(short sHand, LONG lCode, TCSBLOCK* pBlk)
+{
+    DWORD dwBytes = 0;
+
+    if ((sHand < 0) || (sHand >= MAX1401))              /* Check parameters */
+        return U14ERR_BADHAND;
+
+#ifndef _WIN64
+    if (!USE_NT_DIOC(sHand))                    
+    {                            /* Windows 9x DIOC methods */
+        if (DeviceIoControl(aHand1401[sHand], lCode, NULL, 0, pBlk, sizeof(TCSBLOCK), &dwBytes, NULL))
+            return (short)(dwBytes >= sizeof(TCSBLOCK) ? U14ERR_NOERROR : U14ERR_DRIVCOMMS);
+        else
+            return (short)GetLastError();
+    }
+    else
+#endif
+    {                            /* Windows NT or later */
+        PARAMBLK rWork;
+        rWork.sState = U14ERR_DRIVCOMMS;
+        if (DeviceIoControl(aHand1401[sHand], lCode, pBlk, sizeof(TCSBLOCK), &rWork, sizeof(PARAMBLK), &dwBytes, NULL) &&
+            (dwBytes >= sizeof(PARAMBLK)))
+            return rWork.sState;
+    }
+
+    return U14ERR_DRIVCOMMS;
+}
+#endif
+
+/****************************************************************************
+** SafeTickCount
+** Gets time in approximately units of a millisecond.
+*****************************************************************************/
+static long SafeTickCount()
+{
+#ifdef _IS_WINDOWS_
+    return GetTickCount();
+#endif
+#ifdef LINUX
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    return (tv.tv_sec*1000 + tv.tv_usec/1000);
+#endif
+}
+
+/****************************************************************************
+** A utility routine to get the command file extension for a given type
+** of 1401. We assume the type code is vaguely legal.
+****************************************************************************/
+static int ExtForType(short sType, char* szExt)
+{
+    szExt[0] = 0;                       /* Default return is a blank string */
+    switch (sType)
+    {
+    case U14TYPE1401: strcpy(szExt, ".CMD");  break;    // Standard 1401
+    case U14TYPEPLUS: strcpy(szExt, ".GXC");  break;    // 1401 plus
+    default:               // All others are in a predictable sequence
+        strcpy(szExt, ".ARM");
+            szExt[3] = (char)('M' + sType - U14TYPEU1401);
+        if (szExt[3] > 'Z')             // Wrap round to ARA after ARZ
+                szExt[3] = (char)(szExt[3] - 26);
+    }
+    return 0;
+}
+
+/****************************************************************************
+**   U14WhenToTimeOut
+**       Returns the time to time out in time units suitable for the machine
+** we are running on  ie millsecs for pc/linux, or Mac/
+****************************************************************************/
+U14API(int) U14WhenToTimeOut(short hand)
+{
+    int iNow = SafeTickCount();
+    if ((hand >= 0) && (hand < MAX1401))
+        iNow += alTimeOutPeriod[hand];
+    return iNow;
+}
+
+/****************************************************************************
+** U14PassedTime
+** Returns non zero if the timed passed in has been passed 0 if not
+****************************************************************************/
+U14API(short) U14PassedTime(int lCheckTime)
+{
+    return (short)((SafeTickCount()-lCheckTime) > 0);
+}
+
+/****************************************************************************
+** TranslateString
+** Tidies up string that U14GetString returns. Converts all the commas in a
+** string to spaces. Removes terminating CR character. May do more in future.
+****************************************************************************/
+static void TranslateString(char* pStr)
+{
+    int i = 0;
+    while (pStr[i])
+    {
+        if (pStr[i] == ',')
+            pStr[i] = ' ';              /* convert comma to space */
+        ++i;
+    }
+
+    if ((i > 0) && (pStr[i-1] == '\n'))  /* kill terminating LF */
+        pStr[i-1] = (char)0;
+}
+
+/****************************************************************************
+** U14StrToLongs
+** Converts a string to an array of longs and returns the number of values
+****************************************************************************/
+U14API(short) U14StrToLongs(const char* pszBuff, U14LONG *palNums, short sMaxLongs)
+{
+    WORD wChInd = 0;                // index into source
+    short sLgInd = 0;               // index into result longs
+
+    while (pszBuff[wChInd] &&       // until we get to end of string...
+           (sLgInd < sMaxLongs))    // ...or filled the buffer
+    {
+        // Why not use a C Library converter?
+        switch (pszBuff[wChInd])
+        {
+        case '-':
+        case '0': case '1':   case '2': case '3':   case '4':
+        case '5': case '6':   case '7': case '8':   case '9':
+            {
+                BOOL bDone = FALSE; // true at end of number
+                int iSign = 1;      // sign of number
+                long lValue = 0;
+
+                while ((!bDone) && pszBuff[wChInd])
+                {
+                    switch (pszBuff[wChInd])
+                    {
+                    case '-':
+                        iSign = -1; // swap sign
+                        break;
+
+                    case '0': case '1':   case '2': case '3':   case '4':
+                    case '5': case '6':   case '7': case '8':   case '9':
+                        lValue *= 10;   // move to next digit base 10
+                        lValue += ((int)pszBuff[wChInd]-(int)'0');
+                        break;
+
+                    default:        // end of number
+                        bDone = TRUE;
+                        break;
+                    }
+                    wChInd++;       // move onto next character
+                }
+                palNums[sLgInd] = lValue * iSign;
+                sLgInd++;
+            }
+            break;
+
+        default:
+            wChInd++;               // look at next char
+            break;
+        }
+    }
+    return (sLgInd);
+}
+
+
+/****************************************************************************
+** U14LongsFrom1401
+** Gets the next waiting line from the 1401 and converts it longs
+** Returns the number of numbers read or an error.
+****************************************************************************/
+U14API(short) U14LongsFrom1401(short hand, U14LONG *palBuff, short sMaxLongs)
+{
+    char szWork[MAXSTRLEN];
+    short sResult = U14GetString(hand, szWork, MAXSTRLEN);/* get reply from 1401   */
+    if (sResult == U14ERR_NOERROR)                  /* if no error convert   */
+        sResult = U14StrToLongs(szWork, palBuff, sMaxLongs);
+    return sResult;
+}
+
+/****************************************************************************
+**   U14CheckErr
+**   Sends the ERR command to the 1401 and gets the result. Returns 0, a
+**   negative error code, or the first error value.
+****************************************************************************/
+U14API(short) U14CheckErr(short hand)
+{
+    short sResult = U14SendString(hand, ";ERR;");
+    if (sResult == U14ERR_NOERROR)
+    {
+        U14LONG er[3];
+        sResult = U14LongsFrom1401(hand, er, 3);
+        if (sResult > 0)
+        {
+            sResult = (short)er[0];        /* Either zero or an error value */
+#ifdef _DEBUG
+            if (er[0] != 0)
+            {
+                char szMsg[50];
+                sprintf(szMsg, "U14CheckErr returned %d,%d\n", er[0], er[1]);
+                OutputDebugString(szMsg);
+            }
+#endif
+        }
+        else
+        {
+            if (sResult == 0)
+                sResult = U14ERR_TIMEOUT;      /* No numbers equals timeout */
+        }
+    }
+
+    return sResult;
+}
+
+/****************************************************************************
+** U14LastErrCode
+** Returns the last code from the driver. This is for Windows where all calls
+** go through the Control and Status routines, so we can save any error.
+****************************************************************************/
+U14API(short) U14LastErrCode(short hand)
+{
+    if ((hand < 0) || (hand >= MAX1401))
+        return U14ERR_BADHAND;
+    return asLastRetCode[hand];
+}
+
+/****************************************************************************
+** U14SetTimeout
+** Set the timeout period for 1401 comms in milliseconds
+****************************************************************************/
+U14API(void) U14SetTimeout(short hand, int lTimeOut)
+{
+    if ((hand < 0) || (hand >= MAX1401))
+        return;
+    alTimeOutPeriod[hand] = lTimeOut;
+}
+
+/****************************************************************************
+** U14GetTimeout
+** Get the timeout period for 1401 comms in milliseconds
+****************************************************************************/
+U14API(int) U14GetTimeout(short hand)
+{
+    if ((hand < 0) || (hand >= MAX1401))
+        return U14ERR_BADHAND;
+    return alTimeOutPeriod[hand];
+}
+
+/****************************************************************************
+** U14OutBufSpace
+** Return the space in the output buffer, or an error.
+****************************************************************************/
+U14API(short) U14OutBufSpace(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_GETOUTBUFSPACE,&csBlock);
+    if (sErr == U14ERR_NOERROR)
+        sErr = csBlock.ints[0];
+    return sErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_GetOutBufSpace(aHand1401[hand]) : sErr;
+#endif
+}
+
+
+/****************************************************************************
+** U14BaseAddr1401
+** Returns the 1401 base address or an error code. Meaningless nowadays
+****************************************************************************/
+U14API(int) U14BaseAddr1401(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    int iError = U14Status1401(hand, U14_GETBASEADDRESS,&csBlock);
+    if (iError == U14ERR_NOERROR)
+        iError = csBlock.longs[0];
+    return iError;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_GetBaseAddress(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14StateOf1401
+** Return error state, either NOERROR or a negative code.
+****************************************************************************/
+U14API(short) U14StateOf1401(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_STATEOF1401, &csBlock);
+    if (sErr == U14ERR_NOERROR)
+    {
+        sErr = csBlock.ints[0];      // returned 1401 state
+        if ((sErr >= DRIVRET_STD) && (sErr <= DRIVRET_MAX))
+            sErr = U14ERR_NOERROR;
+    }
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        sErr = (short)CED_StateOf1401(aHand1401[hand]);
+        if ((sErr >= DRIVRET_STD) && (sErr <= DRIVRET_MAX))
+            sErr = U14ERR_NOERROR;
+    }
+#endif
+    return sErr;
+}
+
+/****************************************************************************
+** U14DriverVersion
+** Returns the driver version. Hi word is major revision, low word is minor.
+** If you pass in a silly handle (like -1), we return the version of the last
+** driver we know of (to cope with PCI and no 1401 attached).
+****************************************************************************/
+U14API(int) U14DriverVersion(short hand)
+{
+    return CheckHandle(hand) != U14ERR_NOERROR ? lLastDriverVersion : alDriverVersion[hand];
+}
+
+/****************************************************************************
+** U14DriverType
+** Returns the driver type. The type, 0=ISA/NU-Bus, 1=PCI, 2=USB, 3=HSS
+** If you pass in a silly handle (like -1), we return the type of the last
+** driver we know of (to cope with PCI and no 1401 attached).
+****************************************************************************/
+U14API(int) U14DriverType(short hand)
+{
+    return CheckHandle(hand) != U14ERR_NOERROR ? lLastDriverType : asDriverType[hand];
+}
+
+/****************************************************************************
+** U14DriverName
+** Returns the driver type as 3 character (ISA, PCI, USB or HSS))
+****************************************************************************/
+U14API(short) U14DriverName(short hand, char* pBuf, WORD wMax)
+{
+    char* pName;
+    *pBuf = 0;                             // Start off with a blank string
+    switch (U14DriverType(hand))           // Results according to type
+    {
+    case 0:  pName = "ISA"; break;
+    case 1:  pName = "PCI"; break;
+    case 2:  pName = "USB"; break;
+    case 3:  pName = "HSS"; break;
+    default: pName = "???"; break;
+    }
+    strncpy(pBuf, pName, wMax);            // Copy the correct name to return
+
+    return U14ERR_NOERROR;
+}
+
+/****************************************************************************
+** U14BlkTransState
+** Returns 0 no transfer in progress, 1 transfer in progress or an error code
+****************************************************************************/
+U14API(short) U14BlkTransState(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_BLKTRANSSTATE, &csBlock);
+    if (sErr == U14ERR_NOERROR)
+        sErr = csBlock.ints[0];
+    return sErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_BlkTransState(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14Grab1401
+** Take control of the 1401 for diagnostics purposes. USB does nothing.
+****************************************************************************/
+U14API(short) U14Grab1401(short hand)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+#ifdef _IS_WINDOWS_
+        if (abGrabbed[hand])            // 1401 should not have been grabbed
+            sErr = U14ERR_ALREADYSET;   // Error code defined for this
+        else
+        {
+            TCSBLOCK csBlock;
+            sErr = U14Control1401(hand, U14_GRAB1401, &csBlock);
+        }
+#endif
+#ifdef LINUX
+        // 1401 should not have been grabbed
+        sErr = abGrabbed[hand] ? U14ERR_ALREADYSET : CED_Grab1401(aHand1401[hand]);
+#endif
+        if (sErr == U14ERR_NOERROR)
+            abGrabbed[hand] = TRUE;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14Free1401
+****************************************************************************/
+U14API(short)  U14Free1401(short hand)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+#ifdef _IS_WINDOWS_
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+            TCSBLOCK csBlock;
+            sErr = U14Control1401(hand, U14_FREE1401, &csBlock);
+        }
+        else
+            sErr = U14ERR_NOTSET;
+#endif
+#ifdef LINUX
+        // 1401 should not have been grabbed
+        sErr = abGrabbed[hand] ? CED_Free1401(aHand1401[hand]) : U14ERR_NOTSET;
+#endif
+        if (sErr == U14ERR_NOERROR)
+            abGrabbed[hand] = FALSE;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14Peek1401
+** DESCRIPTION  Cause the 1401 to do one or more peek operations.
+** If lRepeats is zero, the loop will continue until U14StopDebugLoop
+** is called. After the peek is done, use U14GetDebugData to retrieve
+** the results of the peek.
+****************************************************************************/
+U14API(short) U14Peek1401(short hand, DWORD dwAddr, int nSize, int nRepeats)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+#ifdef _IS_WINDOWS_
+            TCSBLOCK csBlock;
+            csBlock.longs[0] = (long)dwAddr;
+            csBlock.longs[1] = nSize;
+            csBlock.longs[2] = nRepeats;
+            sErr = U14Control1401(hand, U14_DBGPEEK, &csBlock);
+#endif
+#ifdef LINUX
+            TDBGBLOCK dbb;
+            dbb.iAddr = (int)dwAddr;
+            dbb.iWidth = nSize;
+            dbb.iRepeats = nRepeats;
+            sErr = CED_DbgPeek(aHand1401[hand], &dbb);
+#endif
+        }
+        else
+            sErr = U14ERR_NOTSET;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14Poke1401
+** DESCRIPTION  Cause the 1401 to do one or more poke operations.
+** If lRepeats is zero, the loop will continue until U14StopDebugLoop
+** is called.
+****************************************************************************/
+U14API(short) U14Poke1401(short hand, DWORD dwAddr, DWORD dwValue,
+                                      int nSize, int nRepeats)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+#ifdef _IS_WINDOWS_
+            TCSBLOCK csBlock;
+            csBlock.longs[0] = (long)dwAddr;
+            csBlock.longs[1] = nSize;
+            csBlock.longs[2] = nRepeats;
+            csBlock.longs[3] = (long)dwValue;
+            sErr = U14Control1401(hand, U14_DBGPOKE, &csBlock);
+#endif
+#ifdef LINUX
+            TDBGBLOCK dbb;
+            dbb.iAddr = (int)dwAddr;
+            dbb.iWidth = nSize;
+            dbb.iRepeats= nRepeats;
+            dbb.iData = (int)dwValue;
+            sErr = CED_DbgPoke(aHand1401[hand], &dbb);
+#endif
+        }
+        else
+            sErr = U14ERR_NOTSET;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14Ramp1401
+** DESCRIPTION  Cause the 1401 to loop, writing a ramp to a location.
+** If lRepeats is zero, the loop will continue until U14StopDebugLoop.
+****************************************************************************/
+U14API(short) U14Ramp1401(short hand, DWORD dwAddr, DWORD dwDef, DWORD dwEnable,
+                                      int nSize, int nRepeats)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+#ifdef _IS_WINDOWS_
+            TCSBLOCK csBlock;
+            csBlock.longs[0] = (long)dwAddr;
+            csBlock.longs[1] = (long)dwDef;
+            csBlock.longs[2] = (long)dwEnable;
+            csBlock.longs[3] = nSize;
+            csBlock.longs[4] = nRepeats;
+            sErr = U14Control1401(hand, U14_DBGRAMPDATA, &csBlock);
+#endif
+#ifdef LINUX
+            TDBGBLOCK dbb;
+            dbb.iAddr = (int)dwAddr;
+            dbb.iDefault = (int)dwDef;
+            dbb.iMask = (int)dwEnable;
+            dbb.iWidth = nSize;
+            dbb.iRepeats = nRepeats;
+            sErr = CED_DbgRampAddr(aHand1401[hand], &dbb);
+#endif
+        }
+        else
+            sErr = U14ERR_NOTSET;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14RampAddr
+** DESCRIPTION  Cause the 1401 to loop, reading from a ramping location.
+** If lRepeats is zero, the loop will continue until U14StopDebugLoop
+****************************************************************************/
+U14API(short) U14RampAddr(short hand, DWORD dwDef, DWORD dwEnable,
+                                      int nSize, int nRepeats)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+#ifdef _IS_WINDOWS_
+            TCSBLOCK csBlock;
+            csBlock.longs[0] = (long)dwDef;
+            csBlock.longs[1] = (long)dwEnable;
+            csBlock.longs[2] = nSize;
+            csBlock.longs[3] = nRepeats;
+            sErr = U14Control1401(hand, U14_DBGRAMPADDR, &csBlock);
+#endif
+#ifdef LINUX
+            TDBGBLOCK dbb;
+            dbb.iDefault = (int)dwDef;
+            dbb.iMask = (int)dwEnable;
+            dbb.iWidth = nSize;
+            dbb.iRepeats = nRepeats;
+            sErr = CED_DbgRampAddr(aHand1401[hand], &dbb);
+#endif
+        }
+        else
+            sErr = U14ERR_NOTSET;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+**    U14StopDebugLoop
+**    DESCRIPTION Stops a peek\poke\ramp that, with repeats set to zero,
+**    will otherwise continue forever.
+****************************************************************************/
+U14API(short) U14StopDebugLoop(short hand)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+#ifdef _IS_WINDOWS_
+    {
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+            TCSBLOCK csBlock;
+            sErr = U14Control1401(hand, U14_DBGSTOPLOOP, &csBlock);
+        }
+        else
+            sErr = U14ERR_NOTSET;
+    }
+#endif
+#ifdef LINUX
+        sErr = abGrabbed[hand] ? CED_DbgStopLoop(aHand1401[hand]) : U14ERR_NOTSET;
+#endif
+    return sErr;
+}
+
+/****************************************************************************
+** U14GetDebugData
+** DESCRIPTION Returns the result from a previous peek operation.
+****************************************************************************/
+U14API(short) U14GetDebugData(short hand, U14LONG* plValue)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        if (abGrabbed[hand])    // 1401 should have been grabbed
+        {
+#ifdef _IS_WINDOWS_
+            TCSBLOCK csBlock;
+            sErr = U14Status1401(hand, U14_DBGGETDATA, &csBlock);
+            if (sErr == U14ERR_NOERROR)
+                *plValue = csBlock.longs[0];    // Return the data
+#endif
+#ifdef LINUX
+            TDBGBLOCK dbb;
+            sErr = CED_DbgGetData(aHand1401[hand], &dbb);
+            if (sErr == U14ERR_NOERROR)
+                *plValue = dbb.iData;                     /* Return the data */
+#endif
+        }
+        else
+            sErr = U14ERR_NOTSET;
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14StartSelfTest
+****************************************************************************/
+U14API(short) U14StartSelfTest(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    return U14Control1401(hand, U14_STARTSELFTEST, &csBlock);
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_StartSelfTest(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14CheckSelfTest
+****************************************************************************/
+U14API(short) U14CheckSelfTest(short hand, U14LONG *pData)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_CHECKSELFTEST, &csBlock);
+    if (sErr == U14ERR_NOERROR)
+    {
+        pData[0] = csBlock.longs[0];        /* Return the results to user */
+        pData[1] = csBlock.longs[1];
+        pData[2] = csBlock.longs[2];
+    }
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)                /* Check parameters */
+    {
+        TGET_SELFTEST gst;
+        sErr = CED_CheckSelfTest(aHand1401[hand], &gst);
+        if (sErr == U14ERR_NOERROR)
+        {
+            pData[0] = gst.code;        /* Return the results to user */
+            pData[1] = gst.x;
+            pData[2] = gst.y;
+        }
+    }
+#endif
+    return sErr;
+}
+
+/****************************************************************************
+** U14GetUserMemorySize
+****************************************************************************/
+U14API(short) U14GetUserMemorySize(short hand, DWORD *pMemorySize)
+{
+    // The original 1401 used a different command for getting the size
+    short sErr = U14SendString(hand, (asType1401[hand] == U14TYPE1401) ? "MEMTOP;" : "MEMTOP,?;");
+    *pMemorySize = 0;         /* if we get error then leave size set at 0  */
+    if (sErr == U14ERR_NOERROR)
+    {
+        U14LONG alLimits[4];
+        sErr = U14LongsFrom1401(hand, alLimits, 4);
+        if (sErr > 0)              /* +ve sErr is the number of values read */
+        {
+            sErr = U14ERR_NOERROR;                  /* All OK, flag success */
+            if (asType1401[hand] == U14TYPE1401)    /* result for standard  */
+                *pMemorySize = alLimits[0] - alLimits[1]; /* memtop-membot */
+            else
+                *pMemorySize = alLimits[0];   /* result for plus or u1401  */
+        }
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14TypeOf1401
+** Returns the type of the 1401, maybe unknown
+****************************************************************************/
+U14API(short) U14TypeOf1401(short hand)
+{
+    if ((hand < 0) || (hand >= MAX1401))                /* Check parameters */
+        return U14ERR_BADHAND;
+    else
+        return asType1401[hand];
+}
+
+/****************************************************************************
+** U14NameOf1401
+** Returns the type of the 1401 as a string, blank if unknown
+****************************************************************************/
+U14API(short) U14NameOf1401(short hand, char* pBuf, WORD wMax)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+    char* pName;
+    switch (asType1401[hand])               // Results according to type
+    {
+    case U14TYPE1401:  pName = "Std 1401"; break;
+    case U14TYPEPLUS:  pName = "1401plus"; break;
+    case U14TYPEU1401: pName = "micro1401"; break;
+    case U14TYPEPOWER: pName = "Power1401"; break;
+    case U14TYPEU14012:pName = "Micro1401 mk II"; break;
+    case U14TYPEPOWER2:pName = "Power1401 mk II"; break;
+    case U14TYPEU14013:pName = "Micro1401-3"; break;
+    case U14TYPEPOWER3:pName = "Power1401-3"; break;
+    default:           pName = "Unknown";
+    }
+        strncpy(pBuf, pName, wMax);
+    }
+    return sErr;
+}
+
+/****************************************************************************
+** U14TransferFlags
+**  Returns the driver block transfer flags.
+**  Bits can be set - see U14TF_ constants in use1401.h
+*****************************************************************************/
+U14API(short) U14TransferFlags(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_TRANSFERFLAGS, &csBlock);
+    return (sErr == U14ERR_NOERROR) ? (short)csBlock.ints[0] : sErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_TransferFlags(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** GetDriverVersion
+** Actually reads driver version from the device driver.
+** Hi word is major revision, low word is minor revision.
+** Assumes that hand has been checked. Also codes driver type in bits 24 up.
+*****************************************************************************/
+static int GetDriverVersion(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    int iErr = U14Status1401(hand, U14_GETDRIVERREVISION, &csBlock);
+    if (iErr == U14ERR_NOERROR)
+        iErr = csBlock.longs[0];
+    return iErr;
+#endif
+#ifdef LINUX
+    return CED_GetDriverRevision(aHand1401[hand]);
+#endif
+}
+
+/****************************************************************************
+** U14MonitorRev
+** Returns the 1401 monitor revision number.
+** The number returned is the minor revision - the part after the
+** decimal point - plus the major revision times 1000.
+*****************************************************************************/
+U14API(int) U14MonitorRev(short hand)
+{
+    int iRev = 0;
+    int iErr = CheckHandle(hand);
+    if (iErr != U14ERR_NOERROR)                 // Check open and in use
+        return iErr;
+
+    if (asType1401[hand] >= U14TYPEPOWER2)      // The Power2 onwards can give us the monitor
+    {                                           //  revision directly for all versions
+        iErr = U14SendString(hand, "INFO,S,28;");
+        if (iErr == U14ERR_NOERROR)
+        {
+            U14LONG lVals[2];                   // Read a single number being the revision
+            iErr = U14LongsFrom1401(hand, lVals, 1);
+            if (iErr > 0)
+            {
+                iErr = U14ERR_NOERROR;
+                iRev = lVals[0];                // This is the minor part of the revision
+                iRev += asType1401[hand] * 10000;
+            }
+        }
+    }
+    else
+    {                                           /* Do it the hard way for older hardware */
+        iErr = U14SendString(hand, ";CLIST;");     /* ask for command levels */
+        if (iErr == U14ERR_NOERROR)
+        {     
+            while (iErr == U14ERR_NOERROR)
+            {
+                char wstr[50];
+                iErr = U14GetString(hand, wstr, 45);
+                if (iErr == U14ERR_NOERROR)
+                {
+                    char *pstr = strstr(wstr,"RESET");  /* Is this the RESET command? */
+                    if ((pstr == wstr) && (wstr[5] == ' '))
+                    {
+                        char *pstr2;
+                        size_t l;
+                        pstr += 6;       /* Move past RESET and followinmg char */
+                        l = strlen(pstr);       /* The length of text remaining */
+                        while (((pstr[l-1] == ' ') || (pstr[l-1] == 13)) && (l > 0))
+                        {
+                            pstr[l-1] = 0;         /* Tidy up string at the end */
+                            l--;                  /* by removing spaces and CRs */
+                        }
+                        pstr2 = strchr(pstr, '.');    /* Find the decimal point */
+                        if (pstr2 != NULL)                /* If we found the DP */
+                        {
+                            *pstr2 = 0;                /* End pstr string at DP */
+                            pstr2++;              /* Now past the decimal point */
+                            iRev = atoi(pstr2);   /* Get the number after point */
+                        }
+                        iRev += (atoi(pstr) * 1000);    /* Add first bit * 1000 */
+                    }
+                    if ((strlen(wstr) < 3) && (wstr[0] == ' '))
+                        break;              /* Spot the last line of results */
+                }
+            }
+        }
+    }
+    if (iErr == U14ERR_NOERROR)            /* Return revision if no error */
+        iErr = iRev;
+
+    return iErr;
+}
+
+/****************************************************************************
+** U14TryToOpen     Tries to open the 1401 number passed
+**  Note : This will succeed with NT driver even if no I/F card or
+**         1401 switched off, so we check state and close the driver
+**         if the state is unsatisfactory in U14Open1401.
+****************************************************************************/
+#ifdef _IS_WINDOWS_
+#define U14NAMEOLD "\\\\.\\CED_140%d"
+#define U14NAMENEW "\\\\.\\CED%d"
+static short U14TryToOpen(int n1401, long* plRetVal, short* psHandle)
+{
+    short sErr = U14ERR_NOERROR;
+    HANDLE hDevice = INVALID_HANDLE_VALUE;
+    DWORD dwErr = 0;
+    int nFirst, nLast, nDev = 0;        /* Used for the search for a 1401 */
+    BOOL bOldName = FALSE;               /* start by looking for a modern driver */
+
+    if (n1401 == 0)                             /* If we need to look for a 1401 */
+    {
+        nFirst = 1;                             /* Set the search range */
+        nLast = MAX1401;                        /* through all the possible 1401s */
+    }
+    else
+        nFirst = nLast = n1401;                 /* Otherwise just one 1401 */
+
+    while (hDevice == INVALID_HANDLE_VALUE)     /* Loop to try for a 1401 */
+    {
+        for (nDev = nFirst; nDev <= nLast; nDev++)
+        {
+            char szDevName[40];                 /* name of the device to open */
+            sprintf(szDevName, bOldName ? U14NAMEOLD : U14NAMENEW, nDev);
+            hDevice = CreateFile(szDevName, GENERIC_WRITE | GENERIC_READ,
+                                 0, 0,          /* Unshared mode does nothing as this is a device */
+                                 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+
+            if (hDevice != INVALID_HANDLE_VALUE)/* Check 1401 if opened */
+            {
+                TCSBLOCK csBlock;
+                assert(aHand1401[nDev-1] == INVALID_HANDLE_VALUE);  // assert if already open
+                aHand1401[nDev-1] = hDevice;    /* Save handle for now */
+
+#ifndef _WIN64
+                // Use DIOC method if not windows 9x or if using new device name
+                abUseNTDIOC[nDev-1] = (BOOL)(!bWindows9x || !bOldName);
+#endif
+                sErr = U14Status1401((short)(nDev-1), U14_TYPEOF1401, &csBlock);
+                if (sErr == U14ERR_NOERROR)
+                {
+                    *plRetVal = csBlock.ints[0];
+                    if (csBlock.ints[0] == U14ERR_INUSE)/* Prevent multi opens */
+                    {
+                        CloseHandle(hDevice);   /* treat as open failure */
+                        hDevice = INVALID_HANDLE_VALUE;
+                        aHand1401[nDev-1] = INVALID_HANDLE_VALUE;
+                        sErr = U14ERR_INUSE;
+                    }
+                    else
+                        break;                  /* Exit from for loop on success */
+                }
+                else
+                {
+                    CloseHandle(hDevice);       /* Give up if func fails */
+                    hDevice = INVALID_HANDLE_VALUE;
+                    aHand1401[nDev-1] = INVALID_HANDLE_VALUE;
+                }
+            }
+            else
+            {
+                DWORD dwe = GetLastError();     /* Get error code otherwise */
+                if ((dwe != ERROR_FILE_NOT_FOUND) || (dwErr == 0))
+                    dwErr = dwe;                /* Ignore repeats of 'not found' */
+            }
+        }
+
+        if ((hDevice == INVALID_HANDLE_VALUE) &&/* No device found, and... */
+            (bWindows9x) &&                     /* ...old names are allowed, and... */
+            (bOldName == FALSE))                /* ...not tried old names yet */
+            bOldName = TRUE;                    /* Set flag and go round again */
+        else
+            break;                              /* otherwise that's all folks */
+    }
+
+    if (hDevice != INVALID_HANDLE_VALUE)        /* If we got our device open */
+        *psHandle = (short)(nDev-1);            /* return 1401 number opened */
+    else
+    {
+        if (dwErr == ERROR_FILE_NOT_FOUND)      /* Sort out the error codes */
+            sErr = U14ERR_NO1401DRIV;           /* if file not found */
+        else if (dwErr == ERROR_NOT_SUPPORTED)
+            sErr = U14ERR_DRIVTOOOLD;           /* if DIOC not supported */
+        else if (dwErr == ERROR_ACCESS_DENIED)
+            sErr = U14ERR_INUSE;
+        else
+            sErr = U14ERR_DRIVCOMMS;            /* otherwise assume comms problem */
+    }
+    return sErr;
+}
+#endif
+#ifdef LINUX
+static short U14TryToOpen(int n1401, long* plRetVal, short* psHandle)
+{
+    short sErr = U14ERR_NOERROR;
+    int fh = 0;                             // will be 1401 handle
+    int iErr = 0;
+    int nFirst, nLast, nDev = 0;            // Used for the search for a 1401
+
+    if (n1401 == 0)                         // If we need to look for a 1401
+    {
+        nFirst = 1;                             /* Set the search range */
+        nLast = MAX1401;                        /* through all the possible 1401s */
+    }
+    else
+        nFirst = nLast = n1401;                 /* Otherwise just one 1401 */
+
+    for (nDev = nFirst; nDev <= nLast; nDev++)
+    {
+        char szDevName[40];                 // name of the device to open
+        sprintf(szDevName,"/dev/cedusb/%d", nDev-1);
+        fh = open(szDevName, O_RDWR);       // can only be opened once at a time
+        if (fh > 0)                         // Check 1401 if opened
+        {
+            int iType1401 = CED_TypeOf1401(fh); // get 1401 type
+            aHand1401[nDev-1] = fh;         // Save handle for now
+            if (iType1401 >= 0)
+            {
+                *plRetVal = iType1401;
+                 break;                     // Exit from for loop on success
+            }
+            else
+            {
+                close(fh);                  // Give up if func fails
+                fh = 0;
+                aHand1401[nDev-1] = 0;
+            }
+        }
+        else
+        {
+            if (((errno != ENODEV) && (errno != ENOENT)) || (iErr == 0))
+                iErr = errno;                // Ignore repeats of 'not found'
+        }
+    }
+
+
+    if (fh)                                 // If we got our device open
+        *psHandle = (short)(nDev-1);        // return 1401 number opened
+    else
+    {
+        if ((iErr == ENODEV) || (iErr == ENOENT)) // Sort out the error codes
+            sErr = U14ERR_NO1401DRIV;       // if file not found
+        else if (iErr == EBUSY)
+            sErr = U14ERR_INUSE;
+        else
+            sErr = U14ERR_DRIVCOMMS;        // otherwise assume comms problem
+    }
+
+    return sErr;
+}
+#endif
+/****************************************************************************
+** U14Open1401
+** Tries to get the 1401 for use by this application
+*****************************************************************************/
+U14API(short) U14Open1401(short n1401)
+{
+    long     lRetVal = -1;
+    short    sErr;
+    short    hand = 0;
+    
+    if ((n1401 < 0) || (n1401 > MAX1401))       // must check the 1401 number
+        return U14ERR_BAD1401NUM;
+
+    szLastName[0] = 0;          /* initialise the error info string */
+
+    sErr = U14TryToOpen(n1401, &lRetVal, &hand);
+    if (sErr == U14ERR_NOERROR)
+    {
+        long lDriverVersion = GetDriverVersion(hand);   /* get driver revision */
+        long lDriverRev = -1;
+		if (lDriverVersion >= 0)                    /* can use it if all OK */
+        {
+            lLastDriverType = (lDriverVersion >> 24) & 0x000000FF;
+            asDriverType[hand] = (short)lLastDriverType;    /* Drv type */
+            lLastDriverVersion = lDriverVersion & 0x00FFFFFF;
+            alDriverVersion[hand] = lLastDriverVersion;     /* Actual version */
+            lDriverRev = ((lDriverVersion>>16) & 0x00FF);    /* use hi word */
+        }
+        else
+        {
+            U14Close1401(hand);    /* If there is a problem we should close */
+            return (short)lDriverVersion;      /* and return the error code */
+        }
+    
+        if (lDriverRev < MINDRIVERMAJREV)       /* late enough version?     */
+        {
+            U14Close1401(hand);    /* If there is a problem we should close */
+            return U14ERR_DRIVTOOOLD;           /* too old                  */
+        }
+    
+        asLastRetCode[hand] = U14ERR_NOERROR; /* Initialise this 1401s info */
+        abGrabbed[hand] = FALSE;          /* we are not in single step mode */
+        U14SetTimeout(hand, 3000);      /* set 3 seconds as default timeout */
+
+        switch (lRetVal)
+        {
+        case DRIVRET_STD:  asType1401[hand] = U14TYPE1401; break;      /* Some we do by hand */
+        case DRIVRET_U1401:asType1401[hand] = U14TYPEU1401; break;
+        case DRIVRET_PLUS: asType1401[hand] = U14TYPEPLUS; break;
+        default:  // For the power upwards, we can calculate the codes
+                if ((lRetVal >= DRIVRET_POWER) && (lRetVal <= DRIVRET_MAX))
+                    asType1401[hand] = (short)(lRetVal - (DRIVRET_POWER - U14TYPEPOWER));
+                else
+                    asType1401[hand] = U14TYPEUNKNOWN;
+                break;
+            }
+        U14KillIO1401(hand);                     /* resets the 1401 buffers */
+
+        if (asType1401[hand] != U14TYPEUNKNOWN)   /* If all seems OK so far */
+        {
+            sErr = U14CheckErr(hand);        /* we can check 1401 comms now */
+            if (sErr != 0)                       /* If this failed to go OK */
+                U14Reset1401(hand); /* Reset the 1401 to try to sort it out */
+        }
+
+        sErr = U14StateOf1401(hand);/* Get the state of the 1401 for return */
+        if (sErr == U14ERR_NOERROR)
+            sErr = hand;                 /* return the handle if no problem */
+        else
+            U14Close1401(hand);    /* If there is a problem we should close */
+    }
+
+    return sErr;
+}
+
+
+/****************************************************************************
+** U14Close1401
+** Closes the 1401 so someone else can use it.
+****************************************************************************/
+U14API(short) U14Close1401(short hand)
+{
+    int j;
+    int iAreaMask = 0;                          // Mask for active areas
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)                 // Check open and in use
+        return sErr;
+
+    for (j = 0; j<MAX_TRANSAREAS; ++j)
+    {
+        TGET_TX_BLOCK gtb;
+        int iReturn = U14GetTransfer(hand, &gtb);   // get area information
+        if (iReturn == U14ERR_NOERROR)          // ignore if any problem
+            if (gtb.used)
+                iAreaMask |= (1 << j);          // set a bit for each used area
+    }
+
+    if (iAreaMask)                              // if any areas are in use
+    {
+        U14Reset1401(hand);                     // in case an active transfer running
+        for (j = 0; j < MAX_TRANSAREAS; ++j)    // Locate locked areas
+            if (iAreaMask & (1 << j))           // And kill off any transfers
+                U14UnSetTransfer(hand, (WORD)j);
+    }
+
+#ifdef _IS_WINDOWS_
+    if (aXferEvent[hand])                       // if this 1401 has an open event handle
+    {
+        CloseHandle(aXferEvent[hand]);          // close down the handle
+        aXferEvent[hand] = NULL;                // and mark it as gone
+    }
+
+    if (CloseHandle(aHand1401[hand]))
+#endif
+#ifdef LINUX
+    if (close(aHand1401[hand]) == 0)            // make sure that close works
+#endif
+    {
+        aHand1401[hand] = INVALID_HANDLE_VALUE;
+        asType1401[hand] = U14TYPEUNKNOWN;
+        return U14ERR_NOERROR;
+    }
+    else
+        return U14ERR_BADHAND;     /* BUGBUG GetLastError() ? */
+}
+
+/**************************************************************************
+**
+** Look for open 1401s and attempt to close them down. 32-bit windows only.
+**************************************************************************/
+U14API(void) U14CloseAll(void)
+{
+    int i;
+    for (i = 0; i < MAX1401; i++)       // Tidy up and make safe
+        if (aHand1401[i] != INVALID_HANDLE_VALUE)
+            U14Close1401((short)i);     // Last ditch close 1401
+}
+
+/****************************************************************************
+** U14Reset1401
+** Resets the 1401
+****************************************************************************/
+U14API(short) U14Reset1401(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    return U14Control1401(hand, U14_RESET1401, &csBlock);
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_Reset1401(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14ForceReset
+**    Sets the 1401 full reset flag, so that next call to Reset1401 will
+**     always cause a genuine reset.
+*****************************************************************************/
+U14API(short) U14ForceReset(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    return U14Control1401(hand, U14_FULLRESET, &csBlock);
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_FullReset(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14KillIO1401
+**    Removes any pending IO from the buffers.
+*****************************************************************************/
+U14API(short) U14KillIO1401(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    return U14Control1401(hand, U14_KILLIO1401, &csBlock);
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_KillIO1401(aHand1401[hand]) : sErr;
+#endif
+}
+
+
+/****************************************************************************
+** U14SendString
+** Send characters to the 1401
+*****************************************************************************/
+U14API(short) U14SendString(short hand, const char* pString)
+{
+    int nChars;                     // length we are sending
+    long lTimeOutTicks;             // when to time out
+    BOOL bSpaceToSend;              // space to send yet
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)
+        return sErr;
+
+    nChars = (int)strlen(pString);  // get string length we want to send
+    if (nChars > MAXSTRLEN)
+        return U14ERR_STRLEN;       // String too long
+
+#ifdef _IS_WINDOWS_
+    // To get here we must wait for the buffer to have some space
+    lTimeOutTicks = U14WhenToTimeOut(hand);
+    do
+    {
+        bSpaceToSend = (BOOL)((long)U14OutBufSpace(hand) >= nChars);
+    }
+    while (!bSpaceToSend && !U14PassedTime(lTimeOutTicks));
+
+    if (!bSpaceToSend)             /* Last-ditch attempt to avoid timeout */
+    {           /* This can happen with anti-virus or network activity! */
+        int i;
+        for (i = 0; (i < 4) && (!bSpaceToSend); ++i)
+        {
+            Sleep(25);       /* Give other threads a chance for a while */
+            bSpaceToSend = (BOOL)((long)U14OutBufSpace(hand) >= nChars);
+        }
+    }
+
+    if (asLastRetCode[hand] == U14ERR_NOERROR)      /* no errors? */
+    {
+        if (bSpaceToSend)
+        {
+            PARAMBLK    rData;
+            DWORD       dwBytes;
+            char        tstr[MAXSTRLEN+5];          /* Buffer for chars */
+
+            if ((hand < 0) || (hand >= MAX1401))
+                sErr = U14ERR_BADHAND;
+            else
+            {
+                strcpy(tstr, pString);              /* Into local buf */
+#ifndef _WIN64
+                if (!USE_NT_DIOC(hand))             /* Using WIN 95 driver access? */
+                {
+                    int iOK = DeviceIoControl(aHand1401[hand], (DWORD)U14_SENDSTRING,
+                                    NULL, 0, tstr, nChars,
+                                    &dwBytes, NULL);
+                    if (iOK)
+                        sErr = (dwBytes >= (DWORD)nChars) ? U14ERR_NOERROR : U14ERR_DRIVCOMMS;
+                    else
+                        sErr = (short)GetLastError();
+                }
+                else
+#endif
+                {
+                    int iOK = DeviceIoControl(aHand1401[hand],(DWORD)U14_SENDSTRING,
+                                    tstr, nChars,
+                                    &rData,sizeof(PARAMBLK),&dwBytes,NULL);
+                    if (iOK && (dwBytes >= sizeof(PARAMBLK)))
+                        sErr = rData.sState;
+                    else
+                        sErr = U14ERR_DRIVCOMMS;
+                }
+
+                if (sErr != U14ERR_NOERROR) // If we have had a comms error
+                    U14ForceReset(hand);    //  make sure we get real reset
+            }
+
+            return sErr;
+
+        }
+        else
+        {
+            U14ForceReset(hand);                //  make sure we get real reset
+            return U14ERR_TIMEOUT;
+        }
+    }
+    else
+        return asLastRetCode[hand];
+#endif
+#ifdef LINUX
+    // Just try to send it and see what happens!
+    sErr = CED_SendString(aHand1401[hand], pString, nChars);
+    if (sErr != U14ERR_NOOUT)       // if any result except "no room in output"...
+    {
+        if (sErr != U14ERR_NOERROR) // if a problem...
+             U14ForceReset(hand);   // ...make sure we get real reset next time
+        return sErr;                // ... we are done as nothing we can do
+    }
+
+    // To get here we must wait for the buffer to have some space
+    lTimeOutTicks = U14WhenToTimeOut(hand);
+    do
+    {
+        bSpaceToSend = (BOOL)((long)U14OutBufSpace(hand) >= nChars);
+        if (!bSpaceToSend)
+            sched_yield();          // let others have fun while we wait
+    }
+    while (!bSpaceToSend && !U14PassedTime(lTimeOutTicks));
+
+    if (asLastRetCode[hand] == U14ERR_NOERROR)                /* no errors? */
+    {
+        if (bSpaceToSend)
+        {
+            sErr = CED_SendString(aHand1401[hand], pString, nChars);
+            if (sErr != U14ERR_NOERROR) // If we have had a comms error
+                U14ForceReset(hand);    //  make sure we get real reset
+            return sErr;
+        }
+        else
+        {
+            U14ForceReset(hand);                //  make sure we get real reset
+            return U14ERR_TIMEOUT;
+        }
+    }
+    else
+        return asLastRetCode[hand];
+#endif
+}
+
+/****************************************************************************
+** U14SendChar
+** Send character to the 1401
+*****************************************************************************/
+U14API(short) U14SendChar(short hand, char cChar)
+{
+#ifdef _IS_WINDOWS_
+    char sz[2]=" ";                         // convert to a string and send
+    sz[0] = cChar;
+    sz[1] = 0;
+    return(U14SendString(hand, sz));        // String routines are better
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_SendChar(aHand1401[hand], cChar) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14GetString
+** Get a string from the 1401. Returns a null terminated string.
+** The string is all the characters up to the next CR in the buffer
+** or the end of the buffer if that comes first. This only returns text
+** if there is a CR in the buffer. The terminating CR character is removed.
+** wMaxLen  Is the size of the buffer and must be at least 2 or an error.
+** Returns  U14ERR_NOERR if OK with the result in the string or a negative
+**          error code. Any error from the device causes us to set up for
+**          a full reset.
+****************************************************************************/
+U14API(short) U14GetString(short hand, char* pBuffer, WORD wMaxLen)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)             // If an error...
+        return sErr;                        // ...bail out!
+
+#ifdef _IS_WINDOWS_
+    if (wMaxLen>1)                          // we need space for terminating 0
+    {
+        BOOL bLineToGet;                    // true when a line to get
+        long lTimeOutTicks = U14WhenToTimeOut(hand);
+        do
+            bLineToGet = (BOOL)(U14LineCount(hand) != 0);
+        while (!bLineToGet && !U14PassedTime(lTimeOutTicks));
+
+        if (!bLineToGet)             /* Last-ditch attempt to avoid timeout */
+        {           /* This can happen with anti-virus or network activity! */
+            int i;
+            for (i = 0; (i < 4) && (!bLineToGet); ++i)
+            {
+                Sleep(25);       /* Give other threads a chance for a while */
+                bLineToGet = (BOOL)(U14LineCount(hand) != 0);
+            }
+        }
+
+        if (bLineToGet)
+        {
+            if (asLastRetCode[hand] == U14ERR_NOERROR)     /* all ok so far */
+            {
+                DWORD       dwBytes = 0;
+                *((WORD *)pBuffer) = wMaxLen;       /* set up length */
+#ifndef _WIN64
+                if (!USE_NT_DIOC(hand))             /* Win 95 DIOC here ? */
+                {
+                    char tstr[MAXSTRLEN+5];         /* Buffer for Win95 chars */
+                    int iOK;
+
+                    if (wMaxLen > MAXSTRLEN)        /* Truncate length */
+                        wMaxLen = MAXSTRLEN;    
+
+                    *((WORD *)tstr) = wMaxLen;      /* set len */
+
+                    iOK = DeviceIoControl(aHand1401[hand],(DWORD)U14_GETSTRING,
+                                    NULL, 0, tstr, wMaxLen+sizeof(short),
+                                    &dwBytes, NULL);
+                    if (iOK)                        /* Device IO control OK ? */
+                    {
+                        if (dwBytes >= 0)           /* If driver OK */
+                        {
+                            strcpy(pBuffer, tstr);
+                            sErr = U14ERR_NOERROR;
+                        }
+                        else
+                            sErr = U14ERR_DRIVCOMMS;
+                    }
+                    else
+                    {
+                        sErr = (short)GetLastError();
+                        if (sErr > 0)               /* Errors are -ve */
+                            sErr = (short)-sErr;
+                    }
+                }
+                else
+#endif
+                {       /* Here for NT, the DLL must own the buffer */
+                    HANDLE hMem = GlobalAlloc(GMEM_MOVEABLE,wMaxLen+sizeof(short));
+                    if (hMem)
+                    {
+                        char* pMem = (char*)GlobalLock(hMem);
+                        if (pMem)
+                        {
+                            int iOK = DeviceIoControl(aHand1401[hand],(DWORD)U14_GETSTRING,
+                                            NULL, 0, pMem, wMaxLen+sizeof(short),
+                                            &dwBytes, NULL);
+                            if (iOK)                /* Device IO control OK ? */
+                            {
+                                if (dwBytes >= wMaxLen)
+                                {
+                                    strcpy(pBuffer, pMem+sizeof(short));
+                                    sErr = *((SHORT*)pMem);
+                                }
+                                else
+                                    sErr = U14ERR_DRIVCOMMS;
+                            }
+                            else
+                                sErr = U14ERR_DRIVCOMMS;
+
+                            GlobalUnlock(hMem);
+                        }
+                        else
+                            sErr = U14ERR_OUTOFMEMORY;
+
+                        GlobalFree(hMem);
+                    }
+                    else
+                        sErr = U14ERR_OUTOFMEMORY;
+                }
+
+                if (sErr == U14ERR_NOERROR)     // If all OK...
+                    TranslateString(pBuffer);   // ...convert any commas to spaces
+                else                            // If we have had a comms error...
+                    U14ForceReset(hand);        // ...make sure we get real reset
+
+            }
+            else
+                sErr = asLastRetCode[hand];
+        }
+        else
+        {
+            sErr = U14ERR_TIMEOUT;
+            U14ForceReset(hand);            //  make sure we get real reset
+        }
+    }
+    else
+        sErr = U14ERR_BUFF_SMALL;
+    return sErr;
+#endif
+#ifdef LINUX
+    if (wMaxLen>1)                          // we need space for terminating 0
+    {
+        BOOL bLineToGet;                    // true when a line to get
+        long lTimeOutTicks = U14WhenToTimeOut(hand);
+        do
+        {
+            bLineToGet = (BOOL)(U14LineCount(hand) != 0);
+            if (!bLineToGet)
+                sched_yield();
+
+        }
+        while (!bLineToGet && !U14PassedTime(lTimeOutTicks));
+
+        if (bLineToGet)
+        {
+            sErr = CED_GetString(aHand1401[hand], pBuffer, wMaxLen-1);   // space for terminator
+            if (sErr >=0)                    // if we were OK...
+            {
+                if (sErr >= wMaxLen)         // this should NOT happen unless
+                    sErr = U14ERR_DRIVCOMMS; // ...driver Comms are very bad
+                else
+                {
+                    pBuffer[sErr] = 0;      // OK, so terminate the string...
+                    TranslateString(pBuffer);  // ...and convert commas to spaces.
+                }
+            }
+
+            if (sErr < U14ERR_NOERROR)       // If we have had a comms error
+                U14ForceReset(hand);            //  make sure we get real reset
+        }
+        else
+        {
+            sErr = U14ERR_TIMEOUT;
+            U14ForceReset(hand);            //  make sure we get real reset
+        }
+    }
+    else
+        sErr = U14ERR_BUFF_SMALL;
+
+    return sErr >= U14ERR_NOERROR ? U14ERR_NOERROR : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14GetChar
+** Get a character from the 1401. CR returned as CR.
+*****************************************************************************/
+U14API(short) U14GetChar(short hand, char* pcChar)
+{
+#ifdef _IS_WINDOWS_
+    char sz[2];                             // read a very short string
+    short sErr = U14GetString(hand, sz, 2); // read one char and nul terminate it
+    *pcChar = sz[0];    // copy to result, NB char translate done by GetString
+    if (sErr == U14ERR_NOERROR)
+    {                                       // undo translate of CR to zero
+        if (*pcChar == '\0')                // by converting back
+            *pcChar = '\n';                 // What a nasty thing to have to do
+    }
+    return sErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)             // Check parameters
+        return sErr;
+    sErr = CED_GetChar(aHand1401[hand]);    // get one char, if available
+    if (sErr >= 0)
+    {
+        *pcChar = (char)sErr;              // return if it we have one
+        return U14ERR_NOERROR;              // say all OK
+    }
+    else
+        return sErr;
+#endif
+}
+
+/****************************************************************************
+** U14Stat1401
+** Returns 0 for no lines or error or non zero for something waiting
+****************************************************************************/
+U14API(short) U14Stat1401(short hand)
+{
+    return ((short)(U14LineCount(hand) > 0));
+}
+
+/****************************************************************************
+** U14CharCount
+** Returns the number of characters in the input buffer
+*****************************************************************************/
+U14API(short) U14CharCount(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_STAT1401, &csBlock);
+    if (sErr == U14ERR_NOERROR)
+        sErr = csBlock.ints[0];
+    return sErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_Stat1401(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14LineCount
+** Returns the number of CR characters in the input buffer
+*****************************************************************************/
+U14API(short) U14LineCount(short hand)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14Status1401(hand, U14_LINECOUNT, &csBlock);
+    if (sErr == U14ERR_NOERROR)
+        sErr = csBlock.ints[0];
+    return sErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_LineCount(aHand1401[hand]) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14GetErrorString
+** Converts error code supplied to a decent descriptive string.
+** NOTE: This function may use some extra information stored
+**       internally in the DLL. This information is stored on a
+**       per-process basis, but it might be altered if you call
+**       other functions after getting an error and before using
+**       this function.
+****************************************************************************/
+U14API(void)  U14GetErrorString(short nErr, char* pStr, WORD wMax)
+{
+    char    wstr[150];
+
+    switch (nErr)              /* Basically, we do this with a switch block */
+    {
+    case U14ERR_OFF:
+        sprintf(wstr, "The 1401 is apparently switched off (code %d)", nErr);
+        break;
+
+    case U14ERR_NC:
+        sprintf(wstr, "The 1401 is not connected to the interface card (code %d)", nErr);
+        break;
+
+    case U14ERR_ILL:
+        sprintf(wstr, "The 1401 is not working correctly (code %d)", nErr);
+        break;
+
+    case U14ERR_NOIF:
+        sprintf(wstr, "The 1401 interface card was not detected (code %d)", nErr);
+        break;
+
+    case U14ERR_TIME:
+        sprintf(wstr, "The 1401 fails to become ready for use (code %d)", nErr);
+        break;
+
+    case U14ERR_BADSW:
+        sprintf(wstr, "The 1401 interface card jumpers are incorrect (code %d)", nErr);
+        break;
+
+    case U14ERR_NOINT:
+        sprintf(wstr, "The 1401 interrupt is not available for use (code %d)", nErr);
+        break;
+
+    case U14ERR_INUSE:
+        sprintf(wstr, "The 1401 is already in use by another program (code %d)", nErr);
+        break;
+
+    case U14ERR_NODMA:
+        sprintf(wstr, "The 1401 DMA channel is not available for use (code %d)", nErr);
+        break;
+
+    case U14ERR_BADHAND:
+        sprintf(wstr, "The application supplied an incorrect 1401 handle (code %d)", nErr);
+        break;
+
+    case U14ERR_BAD1401NUM:
+        sprintf(wstr, "The application used an incorrect 1401 number (code %d)", nErr);
+        break;
+
+    case U14ERR_NO_SUCH_FN:
+        sprintf(wstr, "The code passed to the 1401 driver is invalid (code %d)", nErr);
+        break;
+
+    case U14ERR_NO_SUCH_SUBFN:
+        sprintf(wstr, "The sub-code passed to the 1401 driver is invalid (code %d)", nErr);
+        break;
+
+    case U14ERR_NOOUT:
+        sprintf(wstr, "No room in buffer for characters for the 1401 (code %d)", nErr);
+        break;
+
+    case U14ERR_NOIN:
+        sprintf(wstr, "No characters from the 1401 are available (code %d)", nErr);
+        break;
+
+    case U14ERR_STRLEN:
+        sprintf(wstr, "A string sent to or read from the 1401 was too long (code %d)", nErr);
+        break;
+
+    case U14ERR_LOCKFAIL:
+        sprintf(wstr, "Failed to lock host memory for data transfer (code %d)", nErr);
+        break;
+
+    case U14ERR_UNLOCKFAIL:
+        sprintf(wstr, "Failed to unlock host memory after data transfer (code %d)", nErr);
+        break;
+
+    case U14ERR_ALREADYSET:
+        sprintf(wstr, "The transfer area used is already set up (code %d)", nErr);
+        break;
+
+    case U14ERR_NOTSET:
+        sprintf(wstr, "The transfer area used has not been set up (code %d)", nErr);
+        break;
+
+    case U14ERR_BADAREA:
+        sprintf(wstr, "The transfer area number is incorrect (code %d)", nErr);
+        break;
+
+    case U14ERR_NOFILE:
+        sprintf(wstr, "The command file %s could not be opened (code %d)", szLastName, nErr);
+        break;
+
+    case U14ERR_READERR:
+        sprintf(wstr, "The command file %s could not be read (code %d)", szLastName, nErr);
+        break;
+
+    case U14ERR_UNKNOWN:
+        sprintf(wstr, "The %s command resource could not be found (code %d)", szLastName, nErr);
+        break;
+
+    case U14ERR_HOSTSPACE:
+        sprintf(wstr, "Unable to allocate memory for loading command %s (code %d)", szLastName, nErr);
+        break;
+
+    case U14ERR_LOCKERR:
+        sprintf(wstr, "Unable to lock memory for loading command %s (code %d)", szLastName, nErr);
+        break;
+
+    case U14ERR_CLOADERR:
+        sprintf(wstr, "Error in loading command %s, bad command format (code %d)", szLastName, nErr);
+        break;
+
+    case U14ERR_TOXXXERR:
+        sprintf(wstr, "Error detected after data transfer to or from the 1401 (code %d)", nErr);
+        break;
+
+    case U14ERR_NO386ENH:
+        sprintf(wstr, "Windows 3.1 is not running in 386 enhanced mode (code %d)", nErr);
+        break;
+
+    case U14ERR_NO1401DRIV:
+        sprintf(wstr, "The 1401 device driver cannot be found (code %d)\nUSB:   check plugged in and powered\nOther: not installed?", nErr);
+        break;
+
+    case U14ERR_DRIVTOOOLD:
+        sprintf(wstr, "The 1401 device driver is too old for use (code %d)", nErr);
+        break;
+
+    case U14ERR_TIMEOUT:
+        sprintf(wstr, "Character transmissions to the 1401 timed-out (code %d)", nErr);
+        break;
+
+    case U14ERR_BUFF_SMALL:
+        sprintf(wstr, "Buffer for text from the 1401 was too small (code %d)", nErr);
+        break;
+
+    case U14ERR_CBALREADY:
+        sprintf(wstr, "1401 monitor callback already set up (code %d)", nErr);
+        break;
+
+    case U14ERR_BADDEREG:
+        sprintf(wstr, "1401 monitor callback deregister invalid (code %d)", nErr);
+        break;
+
+    case U14ERR_DRIVCOMMS:
+        sprintf(wstr, "1401 device driver communications failed (code %d)", nErr);
+        break;
+
+    case U14ERR_OUTOFMEMORY:
+        sprintf(wstr, "Failed to allocate or lock memory for text from the 1401 (code %d)", nErr);
+        break;
+
+    default:
+        sprintf(wstr, "1401 error code %d returned; this code is unknown", nErr);
+        break;
+
+    }
+    if ((WORD)strlen(wstr) >= wMax-1)  /* Check for string being too long */
+        wstr[wMax-1] = 0;                          /* and truncate it if so */
+    strcpy(pStr, wstr);                       /* Return the error string */
+}
+
+/***************************************************************************
+** U14GetTransfer
+** Get a TGET_TX_BLOCK describing a transfer area (held in the block)
+***************************************************************************/
+U14API(short) U14GetTransfer(short hand, TGET_TX_BLOCK *pTransBlock)
+{
+    short sErr = CheckHandle(hand);
+#ifdef _IS_WINDOWS_
+    if (sErr == U14ERR_NOERROR)
+    { 
+        DWORD dwBytes = 0;
+        BOOL bOK = DeviceIoControl(aHand1401[hand], (DWORD)U14_GETTRANSFER, NULL, 0, pTransBlock,
+                              sizeof(TGET_TX_BLOCK), &dwBytes, NULL);
+    
+        if (bOK && (dwBytes >= sizeof(TGET_TX_BLOCK)))
+            sErr = U14ERR_NOERROR;
+        else
+            sErr = U14ERR_DRIVCOMMS;
+    }
+    return sErr;
+#endif
+#ifdef LINUX
+    return (sErr == U14ERR_NOERROR) ? CED_GetTransfer(aHand1401[hand], pTransBlock) : sErr;
+#endif
+}
+/////////////////////////////////////////////////////////////////////////////
+// U14WorkingSet
+// For Win32 only, adjusts process working set so that minimum is at least
+//  dwMinKb and maximum is at least dwMaxKb.
+// Return value is zero if all went OK, or a code from 1 to 3 indicating the
+//  cause of the failure:
+//
+//     1 unable to access process (insufficient rights?)
+//     2 unable to read process working set
+//     3 unable to set process working set - bad parameters?
+U14API(short) U14WorkingSet(DWORD dwMinKb, DWORD dwMaxKb)
+{
+#ifdef _IS_WINDOWS_
+    short sRetVal = 0;                      // 0 means all is OK
+    HANDLE hProcess;
+    DWORD dwVer = GetVersion();
+	if (dwVer & 0x80000000)                 // is this not NT?
+        return 0;                           // then give up right now
+
+    // Now attempt to get information on working set size
+    hProcess = OpenProcess(STANDARD_RIGHTS_REQUIRED |
+                                  PROCESS_QUERY_INFORMATION |
+                                  PROCESS_SET_QUOTA,
+                                  FALSE, _getpid());
+    if (hProcess)
+    {
+        SIZE_T dwMinSize,dwMaxSize;
+        if (GetProcessWorkingSetSize(hProcess, &dwMinSize, &dwMaxSize))
+        {
+            DWORD dwMin = dwMinKb << 10;    // convert from kb to bytes
+            DWORD dwMax = dwMaxKb << 10;
+
+            // if we get here, we have managed to read the current size
+            if (dwMin > dwMinSize)          // need to change sizes?
+                dwMinSize = dwMin;
+
+            if (dwMax > dwMaxSize)
+                dwMaxSize = dwMax;
+
+            if (!SetProcessWorkingSetSize(hProcess, dwMinSize, dwMaxSize))
+                sRetVal = 3;                // failed to change size
+        }
+        else
+            sRetVal = 2;                    // failed to read original size
+
+        CloseHandle(hProcess);
+    }
+    else
+        sRetVal = 1;            // failed to get handle
+
+    return sRetVal;
+#endif
+#ifdef LINUX
+    if (dwMinKb | dwMaxKb)
+    {
+        // to stop compiler moaning
+    }
+    return U14ERR_NOERROR;
+#endif
+}
+
+/****************************************************************************
+** U14UnSetTransfer  Cancels a transfer area
+** wArea    The index of a block previously used in by SetTransfer
+*****************************************************************************/
+U14API(short) U14UnSetTransfer(short hand, WORD wArea)
+{
+    short sErr = CheckHandle(hand);
+#ifdef _IS_WINDOWS_
+    if (sErr == U14ERR_NOERROR)
+    {
+       TCSBLOCK csBlock;
+       csBlock.ints[0] = (short)wArea;       /* Area number into control block */
+       sErr = U14Control1401(hand, U14_UNSETTRANSFER, &csBlock);  /* Free area */
+   
+       VirtualUnlock(apAreas[hand][wArea], auAreas[hand][wArea]);/* Unlock */
+       apAreas[hand][wArea] = NULL;                         /* Clear locations */
+       auAreas[hand][wArea] = 0;
+    }
+    return sErr;
+#endif
+#ifdef LINUX
+    return (sErr == U14ERR_NOERROR) ? CED_UnsetTransfer(aHand1401[hand], wArea) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14SetTransArea      Sets an area up to be used for transfers
+** WORD  wArea     The area number to set up
+** void *pvBuff    The address of the buffer for the data.
+** DWORD dwLength  The length of the buffer for the data
+** short eSz       The element size (used for byte swapping on the Mac)
+****************************************************************************/
+U14API(short) U14SetTransArea(short hand, WORD wArea, void *pvBuff,
+                                          DWORD dwLength, short eSz)
+{
+    TRANSFERDESC td;
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)
+        return sErr;
+    if (wArea >= MAX_TRANSAREAS)                    // Is this a valid area number
+        return U14ERR_BADAREA;
+
+#ifdef _IS_WINDOWS_
+    assert(apAreas[hand][wArea] == NULL);
+    assert(auAreas[hand][wArea] == 0);
+
+    apAreas[hand][wArea] = pvBuff;                  /* Save data for later */
+    auAreas[hand][wArea] = dwLength;
+
+    if (!VirtualLock(pvBuff, dwLength))             /* Lock using WIN32 calls */
+    {
+        apAreas[hand][wArea] = NULL;                /* Clear locations */
+        auAreas[hand][wArea] = 0;
+        return U14ERR_LOCKERR;                      /* VirtualLock failed */
+    }
+#ifndef _WIN64
+    if (!USE_NT_DIOC(hand))                         /* Use Win 9x DIOC? */
+    {
+        DWORD dwBytes;
+        VXTRANSFERDESC vxDesc;                      /* Structure to pass to VXD */
+        vxDesc.wArea = wArea;                       /* Copy across simple params */
+        vxDesc.dwLength = dwLength;
+
+        // Check we are not asking an old driver for more than area 0
+        if ((wArea != 0) && (U14DriverVersion(hand) < 0x00010002L))
+            sErr = U14ERR_DRIVTOOOLD;
+        else
+        {
+            vxDesc.dwAddrOfs = (DWORD)pvBuff;       /* 32 bit offset */
+            vxDesc.wAddrSel  = 0;
+
+            if (DeviceIoControl(aHand1401[hand], (DWORD)U14_SETTRANSFER,
+                                pvBuff,dwLength,    /* Will translate pointer */
+                                &vxDesc,sizeof(VXTRANSFERDESC),
+                                &dwBytes,NULL))
+            {
+                if (dwBytes >= sizeof(VXTRANSFERDESC)) /* Driver OK ? */
+                    sErr = U14ERR_NOERROR;
+                else
+                    sErr = U14ERR_DRIVCOMMS;        /* Else never got there */
+            }
+            else
+                sErr = (short)GetLastError();
+        }
+    }
+    else
+#endif
+    {
+        PARAMBLK rWork;
+        DWORD dwBytes;
+        td.wArea = wArea;     /* Pure NT - put data into struct */
+        td.lpvBuff = pvBuff;
+        td.dwLength = dwLength;
+        td.eSize = 0;                // Dummy element size
+
+        if (DeviceIoControl(aHand1401[hand],(DWORD)U14_SETTRANSFER,
+                            &td,sizeof(TRANSFERDESC),
+                            &rWork,sizeof(PARAMBLK),&dwBytes,NULL))
+        {
+            if (dwBytes >= sizeof(PARAMBLK))    // maybe error from driver?
+                sErr = rWork.sState;            // will report any error
+            else
+                sErr = U14ERR_DRIVCOMMS;        // Else never got there
+        }
+        else
+            sErr = U14ERR_DRIVCOMMS;
+    }
+
+    if (sErr != U14ERR_NOERROR)
+    {
+        if (sErr != U14ERR_LOCKERR)             // unless lock failed...
+            VirtualUnlock(pvBuff, dwLength);    // ...release the lock
+        apAreas[hand][wArea] = NULL;            // Clear locations
+        auAreas[hand][wArea] = 0;
+    }
+
+    return sErr;
+#endif
+#ifdef LINUX
+    // The strange cast is so that it works in 64 and 32-bit linux as long is 64-bits
+    // in the 64 bit version.
+    td.lpvBuff = (long long)((unsigned long)pvBuff);
+    td.wAreaNum = wArea;
+    td.dwLength = dwLength;
+    td.eSize = eSz;                // Dummy element size
+    return CED_SetTransfer(aHand1401[hand], &td);
+#endif
+}
+
+/****************************************************************************
+** U14SetTransferEvent  Sets an event for notification of application
+** wArea       The tranfer area index, from 0 to MAXAREAS-1
+**    bEvent      True to create an event, false to remove it
+**    bToHost     Set 0 for notification on to1401 tranfers, 1 for
+**                notification of transfers to the host PC
+**    dwStart     The offset of the sub-area of interest
+**    dwLength    The size of the sub-area of interest
+**
+** The device driver will set the event supplied to the signalled state
+** whenever a DMA transfer to/from the specified area is completed. The
+** transfer has to be in the direction specified by bToHost, and overlap
+** that part of the whole transfer area specified by dwStart and dwLength.
+** It is important that this function is called with bEvent false to release
+** the event once 1401 activity is finished.
+**
+** Returns 1 if an event handle exists, 0 if all OK and no event handle or
+** a negative code for an error.
+****************************************************************************/
+U14API(short) U14SetTransferEvent(short hand, WORD wArea, BOOL bEvent,
+                                  BOOL bToHost, DWORD dwStart, DWORD dwLength)
+{
+#ifdef _IS_WINDOWS_
+    TCSBLOCK csBlock;
+    short sErr = U14TransferFlags(hand);        // see if we can handle events
+    if (sErr >= U14ERR_NOERROR)                 // check handle is OK
+    {
+        bEvent = bEvent && ((sErr & U14TF_NOTIFY) != 0); // remove request if we cannot do events
+        if (wArea >= MAX_TRANSAREAS)            // Check a valid area...
+            return U14ERR_BADAREA;              // ...and bail of not
+
+        // We can hold an event for each area, so see if we need to change the
+        // state of the event.
+        if ((bEvent != 0) != (aXferEvent[hand] != 0))    // change of event state?
+        {
+            if (bEvent)                         // want one and none present
+                aXferEvent[hand] = CreateEvent(NULL, FALSE, FALSE, NULL);
+            else
+            {
+                CloseHandle(aXferEvent[hand]);  // clear the existing event
+                aXferEvent[hand] = NULL;        // and clear handle
+            }
+        }
+
+        // We have to store the parameters differently for 64-bit operations
+        //  because a handle is 64 bits long. The drivers know of this and
+        //  handle the information appropriately.
+#ifdef _WIN64
+        csBlock.longs[0] = wArea;               // Pass paramaters into the driver...
+        if (bToHost != 0)                       // The direction flag is held in the
+            csBlock.longs[0] |= 0x10000;        //  upper word of the transfer area value
+        *((HANDLE*)&csBlock.longs[1]) = aXferEvent[hand];  // The event handle is 64-bits
+        csBlock.longs[3] = dwStart;             // Thankfully these two remain
+        csBlock.longs[4] = dwLength;            //  as unsigned 32-bit values
+#else
+        csBlock.longs[0] = wArea;               // pass paramaters into the driver...
+        csBlock.longs[1] = (long)aXferEvent[hand];    // ...especially the event handle
+        csBlock.longs[2] = bToHost;
+        csBlock.longs[3] = dwStart;
+        csBlock.longs[4] = dwLength;
+#endif
+        sErr = U14Control1401(hand, U14_SETTRANSEVENT, &csBlock);
+        if (sErr == U14ERR_NOERROR)
+            sErr = (short)(aXferEvent[hand] != NULL);    // report if we have a flag
+    }
+
+    return sErr;
+#endif
+#ifdef LINUX
+    TRANSFEREVENT te;
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)
+        return sErr;
+
+    if (wArea >= MAX_TRANSAREAS)            // Is this a valid area number
+        return U14ERR_BADAREA;
+
+    te.wAreaNum = wArea;                    // copy parameters to the control block
+    te.wFlags = bToHost ? 1 : 0;            // bit 0 sets the direction
+    te.dwStart = dwStart;                   // start offset of the event area
+    te.dwLength = dwLength;                 // size of the event area
+    te.iSetEvent = bEvent;                  // in Windows, this creates/destroys the event
+    return CED_SetEvent(aHand1401[hand], &te);
+#endif
+}
+
+/****************************************************************************
+** U14TestTransferEvent
+** Would a U14WaitTransferEvent() call return immediately? return 1 if so,
+** 0 if not or a negative code if a problem.
+****************************************************************************/
+U14API(int) U14TestTransferEvent(short hand, WORD wArea)
+{
+#ifdef _IS_WINDOWS_
+    int iErr = CheckHandle(hand);
+    if (iErr == U14ERR_NOERROR)
+    {
+        if (aXferEvent[hand])           // if a handle is set...
+            iErr = WaitForSingleObject(aXferEvent[hand], 0) == WAIT_OBJECT_0;
+    }
+    return iErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_TestEvent(aHand1401[hand], wArea) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14WaitTransferEvent
+** Wait for a transfer event with a timeout.
+** msTimeOut is 0 for an infinite wait, else it is the maximum time to wait
+**           in milliseconds in range 0-0x00ffffff.
+** Returns   If no event handle then return immediately. Else return 1 if
+**           timed out or 0=event, and a negative code if a problem.
+****************************************************************************/
+U14API(int) U14WaitTransferEvent(short hand, WORD wArea, int msTimeOut)
+{
+#ifdef _IS_WINDOWS_
+    int iErr = CheckHandle(hand);
+    if (iErr == U14ERR_NOERROR)
+    {
+        if (aXferEvent[hand])
+        {
+            if (msTimeOut == 0)
+                msTimeOut = INFINITE;
+            iErr = WaitForSingleObject(aXferEvent[hand], msTimeOut) != WAIT_OBJECT_0;
+        }
+        else
+            iErr = TRUE;                // say we timed out if no event
+    }
+    return iErr;
+#endif
+#ifdef LINUX
+    short sErr = CheckHandle(hand);
+    return (sErr == U14ERR_NOERROR) ? CED_WaitEvent(aHand1401[hand], wArea, msTimeOut) : sErr;
+#endif
+}
+
+/****************************************************************************
+** U14SetCircular    Sets an area up for circular DMA transfers
+** WORD  wArea          The area number to set up
+** BOOL  bToHost        Sets the direction of data transfer
+** void *pvBuff        The address of the buffer for the data
+** DWORD dwLength       The length of the buffer for the data
+****************************************************************************/
+U14API(short) U14SetCircular(short hand, WORD wArea, BOOL bToHost,
+									void *pvBuff, DWORD dwLength)
+{
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)
+        return sErr;
+
+    if (wArea >= MAX_TRANSAREAS)         /* Is this a valid area number */
+        return U14ERR_BADAREA;
+
+	if (!bToHost)             /* For now, support tohost transfers only */
+        return U14ERR_BADAREA;            /* best error code I can find */
+#ifdef _IS_WINDOWS_
+    assert(apAreas[hand][wArea] == NULL);
+    assert(auAreas[hand][wArea] == 0);
+
+    apAreas[hand][wArea] = pvBuff;              /* Save data for later */
+    auAreas[hand][wArea] = dwLength;
+
+    if (!VirtualLock(pvBuff, dwLength))      /* Lock using WIN32 calls */
+        sErr = U14ERR_LOCKERR;                    /* VirtualLock failed */
+    else
+    {
+        PARAMBLK rWork;
+        DWORD dwBytes;
+        TRANSFERDESC txDesc;
+        txDesc.wArea = wArea;             /* Pure NT - put data into struct */
+        txDesc.lpvBuff = pvBuff;
+        txDesc.dwLength = dwLength;
+        txDesc.eSize = (short)bToHost;       /* Use this for direction flag */
+   
+        if (DeviceIoControl(aHand1401[hand],(DWORD)U14_SETCIRCULAR,
+                           &txDesc, sizeof(TRANSFERDESC),
+                           &rWork, sizeof(PARAMBLK),&dwBytes,NULL))
+        {
+           if (dwBytes >= sizeof(PARAMBLK))          /* error from driver? */
+               sErr = rWork.sState;         /* No, just return driver data */
+           else
+               sErr = U14ERR_DRIVCOMMS;            /* Else never got there */
+        }
+        else
+            sErr = U14ERR_DRIVCOMMS;
+    }
+
+    if (sErr != U14ERR_NOERROR)
+    {
+        if (sErr != U14ERR_LOCKERR)
+            VirtualUnlock(pvBuff, dwLength);         /* Release NT lock */
+        apAreas[hand][wArea] = NULL;                 /* Clear locations */
+        auAreas[hand][wArea] = 0;
+    }
+
+    return sErr;
+#endif
+#ifdef LINUX
+    else
+    {
+        TRANSFERDESC td;
+        td.lpvBuff = (long long)((unsigned long)pvBuff);
+        td.wAreaNum = wArea;
+        td.dwLength = dwLength;
+        td.eSize = (short)bToHost;       /* Use this for direction flag */
+        return CED_SetCircular(aHand1401[hand], &td);
+    }
+#endif
+}
+
+/****************************************************************************
+** Function  GetCircBlk returns the size (& start offset) of the next
+**           available block of circular data.
+****************************************************************************/
+U14API(int) U14GetCircBlk(short hand, WORD wArea, DWORD *pdwOffs)
+{
+    int lErr = CheckHandle(hand);
+    if (lErr != U14ERR_NOERROR)
+        return lErr;
+
+    if (wArea >= MAX_TRANSAREAS)            // Is this a valid area number?
+        return U14ERR_BADAREA;
+    else
+    {
+#ifdef _IS_WINDOWS_
+        PARAMBLK rWork;
+        TCSBLOCK csBlock;
+        DWORD dwBytes;
+        csBlock.longs[0] = wArea;               // Area number into control block
+        rWork.sState = U14ERR_DRIVCOMMS;
+        if (DeviceIoControl(aHand1401[hand], (DWORD)U14_GETCIRCBLK, &csBlock, sizeof(TCSBLOCK), &rWork, sizeof(PARAMBLK), &dwBytes, NULL) &&
+           (dwBytes >= sizeof(PARAMBLK)))
+            lErr = rWork.sState;
+        else
+            lErr = U14ERR_DRIVCOMMS;
+   
+        if (lErr == U14ERR_NOERROR)             // Did everything go OK?
+        {                                       // Yes, we can pass the results back
+            lErr = rWork.csBlock.longs[1];      // Return the block information
+            *pdwOffs = rWork.csBlock.longs[0];  // Offset is first in array
+        }
+#endif
+#ifdef LINUX
+        TCIRCBLOCK cb;
+        cb.nArea = wArea;                       // Area number into control block
+        cb.dwOffset = 0;
+        cb.dwSize = 0;
+        lErr = CED_GetCircBlock(aHand1401[hand], &cb);
+        if (lErr == U14ERR_NOERROR)             // Did everything go OK?
+        {                                       // Yes, we can pass the results back
+            lErr = cb.dwSize;                   // return the size
+            *pdwOffs = cb.dwOffset;             // and the offset
+        }
+#endif
+    }
+    return lErr;
+}
+
+/****************************************************************************
+** Function  FreeCircBlk marks the specified area of memory as free for
+**           resuse for circular transfers and returns the size (& start
+**           offset) of the next available block of circular data.
+****************************************************************************/
+U14API(int) U14FreeCircBlk(short hand, WORD wArea, DWORD dwOffs, DWORD dwSize,
+                                        DWORD *pdwOffs)
+{
+    int lErr = CheckHandle(hand);
+    if (lErr != U14ERR_NOERROR)
+        return lErr;
+
+    if (wArea < MAX_TRANSAREAS)                 // Is this a valid area number
+    {
+#ifdef _IS_WINDOWS_
+        PARAMBLK rWork;
+        TCSBLOCK csBlock;
+        DWORD dwBytes;
+        csBlock.longs[0] = wArea;               // Area number into control block
+        csBlock.longs[1] = dwOffs;
+        csBlock.longs[2] = dwSize;
+        rWork.sState = U14ERR_DRIVCOMMS;
+        if (DeviceIoControl(aHand1401[hand], (DWORD)U14_FREECIRCBLK, &csBlock, sizeof(TCSBLOCK),
+                           &rWork, sizeof(PARAMBLK), &dwBytes, NULL) &&
+           (dwBytes >= sizeof(PARAMBLK)))
+           lErr = rWork.sState;
+        else
+           lErr = U14ERR_DRIVCOMMS;
+       if (lErr == U14ERR_NOERROR)             // Did everything work OK?
+       {                                       // Yes, we can pass the results back
+           lErr = rWork.csBlock.longs[1];      // Return the block information
+           *pdwOffs = rWork.csBlock.longs[0];  // Offset is first in array
+       }
+#endif
+#ifdef LINUX
+        TCIRCBLOCK cb;
+        cb.nArea = wArea;                       // Area number into control block
+        cb.dwOffset = dwOffs;
+        cb.dwSize = dwSize;
+    
+        lErr = CED_FreeCircBlock(aHand1401[hand], &cb);
+        if (lErr == U14ERR_NOERROR)             // Did everything work OK?
+        {                                       // Yes, we can pass the results back
+            lErr = cb.dwSize;                   // Return the block information
+            *pdwOffs = cb.dwOffset;             // Offset is first in array
+        }
+#endif
+    }
+    else
+        lErr = U14ERR_BADAREA;
+
+    return lErr;
+}
+
+/****************************************************************************
+** Transfer
+** Transfer moves data to 1401 or to host
+** Assumes memory is allocated and locked,
+** which it should be to get a pointer
+*****************************************************************************/
+static short Transfer(short hand, BOOL bTo1401, char* pData,
+                       DWORD dwSize, DWORD dw1401, short eSz)
+{
+    char strcopy[MAXSTRLEN+1];          // to hold copy of work string
+    short sResult = U14SetTransArea(hand, 0, (void *)pData, dwSize, eSz);
+    if (sResult == U14ERR_NOERROR)      // no error
+    {
+        sprintf(strcopy,                // data offset is always 0
+                "TO%s,$%X,$%X,0;", bTo1401 ? "1401" : "HOST", dw1401, dwSize);
+
+        U14SendString(hand, strcopy);   // send transfer string
+
+        sResult = U14CheckErr(hand);    // Use ERR command to check for done
+        if (sResult > 0)
+            sResult = U14ERR_TOXXXERR;  // If a 1401 error, use this code
+
+        U14UnSetTransfer(hand, 0);
+    }
+    return sResult;
+}
+
+/****************************************************************************
+** Function  ToHost transfers data into the host from the 1401
+****************************************************************************/
+U14API(short) U14ToHost(short hand, char* pAddrHost, DWORD dwSize,
+                                            DWORD dw1401, short eSz)
+{
+    short sErr = CheckHandle(hand);
+    if ((sErr == U14ERR_NOERROR) && dwSize) // TOHOST is a constant
+        sErr = Transfer(hand, TOHOST, pAddrHost, dwSize, dw1401, eSz);
+    return sErr;
+}
+
+/****************************************************************************
+** Function  To1401 transfers data into the 1401 from the host
+****************************************************************************/
+U14API(short) U14To1401(short hand, const char* pAddrHost,DWORD dwSize,
+                                    DWORD dw1401, short eSz)
+{
+    short sErr = CheckHandle(hand);
+    if ((sErr == U14ERR_NOERROR) && dwSize) // TO1401 is a constant
+        sErr = Transfer(hand, TO1401, (char*)pAddrHost, dwSize, dw1401, eSz);
+    return sErr;
+}
+
+/****************************************************************************
+** Function  LdCmd    Loads a command from a full path or just a file
+*****************************************************************************/
+#ifdef _IS_WINDOWS_
+#define file_exist(name) (_access(name, 0) != -1)
+#define file_open(name) _lopen(name, OF_READ)
+#define file_close(h)   _lclose(h)
+#define file_seek(h, pos) _llseek(h, pos, FILE_BEGIN) 
+#define file_read(h, buffer, size) (_lread(h, buffer, size) == size)
+#endif
+#ifdef LINUX
+#define file_exist(name) (access(name, F_OK) != -1)
+#define file_open(name) open(name, O_RDONLY)
+#define file_close(h)   close(h)
+#define file_seek(h, pos) lseek(h, pos, SEEK_SET) 
+#define file_read(h, buffer, size) (read(h, buffer, size) == (ssize_t)size)
+static DWORD GetModuleFileName(void* dummy, char* buffer, int max)
+{
+    // The following works for Linux systems with a /proc file system.
+    char szProcPath[32];
+    sprintf(szProcPath, "/proc/%d/exe", getpid());  // attempt to read link
+    if (readlink(szProcPath, buffer, max) != -1)
+    {
+        dirname (buffer);
+        strcat  (buffer, "/");
+        return strlen(buffer);
+    }
+    return 0;
+}
+#endif
+
+U14API(short) U14LdCmd(short hand, const char* command)
+{
+    char strcopy[MAXSTRLEN+1];      // to hold copy of work string
+    BOOL bGotIt = FALSE;            // have we found the command file?
+    int iFHandle;                   // file handle of command
+#define FNSZ 260
+    char filnam[FNSZ];              // space to build name in
+    char szCmd[25];                 // just the command name with extension
+
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)
+        return sErr;
+
+    if (strchr(command, '.') != NULL)       // see if we have full name
+    {
+        if (file_exist(command))            // If the file exists
+        {
+            strcpy(filnam, command);        // use name as is
+            bGotIt = TRUE;                  // Flag no more searching
+        }
+        else                                // not found, get file name for search
+        {
+            char* pStr = strrchr(command, PATHSEP);  // Point to last separator
+            if (pStr != NULL)               // Check we got it
+            {
+                pStr++;                     // move past the backslash
+                strcpy(szCmd, pStr);        // copy file name as is
+            }
+            else
+                strcpy(szCmd, command);     // use as is
+        }
+    }
+    else    // File extension not supplied, so build the command file name
+    {
+        char szExt[8];
+        strcpy(szCmd, command);             // Build command file name
+        ExtForType(asType1401[hand], szExt);// File extension string
+        strcat(szCmd, szExt);               // add it to the end
+    }
+
+    // Next place to look is in the 1401 folder in the same place as the
+    // application was run from.
+    if (!bGotIt)                            // Still not got it?
+    {
+        DWORD dwLen = GetModuleFileName(NULL, filnam, FNSZ); // Get app path
+        if (dwLen > 0)                      // and use it as path if found
+        {
+            char* pStr = strrchr(filnam, PATHSEP);    // Point to last separator
+            if (pStr != NULL)
+            {
+                *(++pStr) = 0;                  // Terminate string there
+                if (strlen(filnam) < FNSZ-6)    // make sure we have space
+                {
+                    strcat(filnam, "1401" PATHSEPSTR);  // add in 1401 subdir
+                    strcat(filnam,szCmd);
+                    bGotIt = (BOOL)file_exist(filnam);  // See if file exists
+                }
+            }
+        }
+    }
+
+    // Next place to look is in whatever path is set by the 1401DIR environment
+    // variable, if it exists.
+    if (!bGotIt)                            // Need to do more searches?/
+    {
+        char* pStr = getenv("1401DIR");     // Try to find environment var
+        if (pStr != NULL)                   // and use it as path if found
+        {
+            strcpy(filnam, pStr);                   // Use path in environment
+            if (filnam[strlen(filnam)-1] != PATHSEP)// We need separator
+                strcat(filnam, PATHSEPSTR);
+            strcat(filnam, szCmd);
+            bGotIt = (BOOL)file_exist(filnam); // Got this one?
+        }
+    }
+
+    // Last place to look is the default location.
+    if (!bGotIt)                        // Need to do more searches?
+    {
+        strcpy(filnam, DEFCMDPATH);     // Use default path
+        strcat(filnam, szCmd);
+        bGotIt = file_exist(filnam);    // Got this one?
+    }
+
+    iFHandle = file_open(filnam);
+    if (iFHandle == -1)
+        sErr = U14ERR_NOFILE;
+    else
+    {                                   // first read in the header block
+        CMDHEAD rCmdHead;               // to hold the command header
+        if (file_read(iFHandle, &rCmdHead, sizeof(CMDHEAD)))
+        {
+            size_t nComSize = rCmdHead.wCmdSize;
+            char* pMem = malloc(nComSize);
+            if (pMem != NULL)
+            {
+                file_seek(iFHandle, sizeof(CMDHEAD));
+                if (file_read(iFHandle, pMem, (UINT)nComSize))
+                {
+                    sErr = U14SetTransArea(hand, 0, (void *)pMem, (DWORD)nComSize, ESZBYTES);
+                    if (sErr == U14ERR_NOERROR)
+                    {
+                        sprintf(strcopy, "CLOAD,0,$%X;", (int)nComSize);
+                        sErr = U14SendString(hand, strcopy);
+                        if (sErr == U14ERR_NOERROR)
+                        {
+                            sErr = U14CheckErr(hand);     // Use ERR to check for done
+                            if (sErr > 0)
+                                sErr = U14ERR_CLOADERR;   // If an error, this code
+                        }
+                        U14UnSetTransfer(hand, 0);  // release transfer area
+                    }
+                }
+                else
+                    sErr = U14ERR_READERR;
+                free(pMem);
+            }
+            else
+                sErr = U14ERR_HOSTSPACE;    // memory allocate failed
+        }
+        else
+            sErr = U14ERR_READERR;
+
+        file_close(iFHandle);               // close the file
+    }
+
+    return sErr;
+}
+
+
+/****************************************************************************
+** Ld
+** Loads a command into the 1401
+** Returns NOERROR code or a long with error in lo word and index of
+** command that failed in high word
+****************************************************************************/
+U14API(DWORD) U14Ld(short hand, const char* vl, const char* str)
+{
+    DWORD dwIndex = 0;              // index to current command
+    long lErr = U14ERR_NOERROR;     // what the error was that went wrong
+    char strcopy[MAXSTRLEN+1];      // stores unmodified str parameter
+    char szFExt[8];                 // The command file extension
+    short sErr = CheckHandle(hand);
+    if (sErr != U14ERR_NOERROR)
+        return sErr;
+
+    ExtForType(asType1401[hand], szFExt);   // File extension string
+    strcpy(strcopy, str);               // to avoid changing original
+
+    // now break out one command at a time and see if loaded
+    if (*str)                           // if anything there
+    {
+        BOOL bDone = FALSE;             // true when finished all commands
+        int iLoop1 = 0;                 // Point at start of string for command name
+        int iLoop2 = 0;                 // and at start of str parameter
+        do                              // repeat until end of str
+        {
+            char filnam[MAXSTRLEN+1];   // filename to use
+            char szFName[MAXSTRLEN+1];  // filename work string
+
+            if (!strcopy[iLoop1])       // at the end of the string?
+                bDone = TRUE;           // set the finish flag
+
+            if (bDone || (strcopy[iLoop1] == ','))  // end of cmd?
+            {
+                U14LONG er[5];                  // Used to read back error results
+                ++dwIndex;                      // Keep count of command number, first is 1
+                szFName[iLoop2]=(char)0;        // null terminate name of command
+
+                strncpy(szLastName, szFName, sizeof(szLastName));    // Save for error info
+                szLastName[sizeof(szLastName)-1] = 0;
+                strncat(szLastName, szFExt, sizeof(szLastName));     // with extension included
+                szLastName[sizeof(szLastName)-1] = 0;
+
+                U14SendString(hand, szFName);   // ask if loaded
+                U14SendString(hand, ";ERR;");   // add err return
+
+                lErr = U14LongsFrom1401(hand, er, 5);
+                if (lErr > 0)
+                {
+                    lErr = U14ERR_NOERROR;
+                    if (er[0] == 255)           // if command not loaded at all
+                    {
+                        if (vl && *vl)          // if we have a path name
+                        {
+                            strcpy(filnam, vl);
+                            if (strchr("\\/:", filnam[strlen(filnam)-1]) == NULL)
+                                strcat(filnam, PATHSEPSTR); // add separator if none found
+                            strcat(filnam, szFName);    // add the file name
+                            strcat(filnam, szFExt);     // and extension
+                        }
+                        else
+                            strcpy(filnam, szFName);    // simple name
+
+                        lErr = U14LdCmd(hand, filnam);  // load cmd
+                        if (lErr != U14ERR_NOERROR)     // spot any errors
+                            bDone = TRUE;               // give up if an error
+                    }
+                }
+                else
+                    bDone = TRUE;       // give up if an error
+
+                iLoop2 = 0;             // Reset pointer to command name string
+                ++iLoop1;               // and move on through str parameter
+            }
+            else
+                szFName[iLoop2++] = strcopy[iLoop1++];  // no command end, so copy 1 char
+        }
+        while (!bDone);
+    }
+
+    if (lErr == U14ERR_NOERROR)
+    {
+        szLastName[0] = 0;      // No error, so clean out command name here
+        return lErr;
+    }
+    else
+        return ((dwIndex<<16) | ((DWORD)lErr & 0x0000FFFF));
+}
+
+// Initialise the library (if not initialised) and return the library version
+U14API(int) U14InitLib(void)
+{
+    int iRetVal = U14LIB_VERSION;
+    if (iAttached == 0)         // only do this the first time please
+    {
+        int i;
+#ifdef _IS_WINDOWS_
+        int j;
+        DWORD   dwVersion = GetVersion();
+        bWindows9x = FALSE;                  // Assume not Win9x
+
+        if (dwVersion & 0x80000000)                 // if not windows NT
+        {
+            if ((LOBYTE(LOWORD(dwVersion)) < 4) &&  // if Win32s or...
+                 (HIBYTE(LOWORD(dwVersion)) < 95))  // ...below Windows 95
+            iRetVal = 0;                            // We do not support this
+        else
+            bWindows9x = TRUE;                      // Flag we have Win9x
+        }
+#endif
+        
+        for (i = 0; i < MAX1401; i++)               // initialise the device area
+        {
+            aHand1401[i] = INVALID_HANDLE_VALUE;    // Clear handle values
+            asType1401[i] = U14TYPEUNKNOWN;         // and 1401 type codes
+            alTimeOutPeriod[i] = 3000;              // 3 second timeouts
+#ifdef _IS_WINDOWS_
+#ifndef _WIN64
+            abUseNTDIOC[i] = (BOOL)!bWindows9x;
+#endif
+            aXferEvent[i] = NULL;                   // there are no Xfer events
+            for (j = 0; j < MAX_TRANSAREAS; j++)    // Clear out locked area info
+            {
+                apAreas[i][j] = NULL;
+                auAreas[i][j] = 0;
+            }
+#endif
+        }
+    }
+    return iRetVal;
+}
+
+///--------------------------------------------------------------------------------
+/// Functions called when the library is loaded and unloaded to give us a chance to
+/// setup the library.
+
+
+#ifdef _IS_WINDOWS_
+#ifndef U14_NOT_DLL
+/****************************************************************************
+** FUNCTION: DllMain(HANDLE, DWORD, LPVOID)
+** LibMain is called by Windows when the DLL is initialized, Thread Attached,
+** and other times. Refer to SDK documentation, as to the different ways this
+** may be called.
+****************************************************************************/
+INT APIENTRY DllMain(HANDLE hInst, DWORD ul_reason_being_called, LPVOID lpReserved)
+{
+    int iRetVal = 1;
+
+    switch (ul_reason_being_called)
+    {
+    case DLL_PROCESS_ATTACH:
+        iRetVal = U14InitLib() > 0;         // does nothing if iAttached != 0
+        ++iAttached;                        // count times attached
+        break;
+
+    case DLL_PROCESS_DETACH:
+        if (--iAttached == 0)               // last man out?
+            U14CloseAll();                  // release all open handles
+        break;
+    }
+    return iRetVal;
+
+    UNREFERENCED_PARAMETER(lpReserved);
+}
+#endif
+#endif
+#ifdef LINUX
+void __attribute__((constructor)) use1401_load(void)
+{
+    U14InitLib();
+    ++iAttached;
+}
+
+void __attribute__((destructor)) use1401_unload(void)
+{
+        if (--iAttached == 0)               // last man out?
+            U14CloseAll();                  // release all open handles
+}
+#endif
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 6cee7855b01..2093403af25 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -549,6 +549,23 @@ menuconfig COMEDI_PCI_DRIVERS
 
 if COMEDI_PCI_DRIVERS
 
+config COMEDI_8255_PCI
+	tristate "Generic PCI based 8255 digital i/o board support"
+	select COMEDI_8255
+	---help---
+	  Enable support for PCI based 8255 digital i/o boards. This driver
+	  provides a PCI wrapper around the generic 8255 driver.
+
+	  Supported boards:
+	    ADlink - PCI-7224, PCI-7248, and PCI-7296
+	    Measurement Computing - PCI-DIO24, PCI-DIO24H, PCI-DIO48H and
+	                            PCI-DIO96H
+	    National Instruments - PCI-DIO-96, PCI-DIO-96B, PXI-6508, PCI-6503,
+	                           PCI-6503B, PCI-6503X, and PXI-6503
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called 8255_pci.
+
 config COMEDI_ADDI_APCI_035
 	tristate "ADDI-DATA APCI_035 support"
 	depends on VIRT_TO_BUS
@@ -676,30 +693,16 @@ config COMEDI_ADL_PCI6208
 	  To compile this driver as a module, choose M here: the module will be
 	  called adl_pci6208.
 
-config COMEDI_ADL_PCI7230
-	tristate "ADLink PCI-7230 digital io board support"
-	---help---
-	  Enable support for ADlink PCI-7230 digital io board support
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci7230.
-
-config COMEDI_ADL_PCI7296
-	tristate "ADLink PCI-7296 96 ch. digital io board support"
-	select COMEDI_8255
+config COMEDI_ADL_PCI7X3X
+	tristate "ADLink PCI-723X/743X isolated digital i/o board support"
 	---help---
-	  Enable support for ADlink PCI-7296 96 ch. digital io board support
+	  Enable support for ADlink PCI-723X/743X isolated digital i/o boards.
+	  Supported boards include the 32-channel PCI-7230 (16 in/16 out),
+	  PCI-7233 (32 in), and PCI-7234 (32 out) as well as the 64-channel
+	  PCI-7432 (32 in/32 out), PCI-7433 (64 in), and PCI-7434 (64 out).
 
 	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci7296.
-
-config COMEDI_ADL_PCI7432
-	tristate "ADLink PCI-7432 64 ch. isolated digital io board support"
-	---help---
-	  Enable support for ADlink PCI-7432 64 ch. isolated digital io board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci7432.
+	  called adl_pci7x3x.
 
 config COMEDI_ADL_PCI8164
 	tristate "ADLink PCI-8164 4 Axes Motion Control board support"
@@ -935,16 +938,6 @@ config COMEDI_CB_PCIDDA
 	  To compile this driver as a module, choose M here: the module will be
 	  called cb_pcidda.
 
-config COMEDI_CB_PCIDIO
-	tristate "MeasurementComputing PCI-DIO series support"
-	select COMEDI_8255
-	---help---
-	  Enable support for ComputerBoards/MeasurementComputing PCI-DIO series
-	  PCI-DIO24, PCI-DIO24H and PCI-DIO48H
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_pcidio.
-
 config COMEDI_CB_PCIMDAS
 	tristate "MeasurementComputing PCIM-DAS1602/16 support"
 	select COMEDI_8255
@@ -1039,15 +1032,12 @@ config COMEDI_NI_LABPC
 	  called ni_labpc.
 
 config COMEDI_NI_PCIDIO
-	tristate "NI PCI-DIO32HS, PCI-DIO96, PCI-6533, PCI-6503 support"
+	tristate "NI PCI-DIO32HS, PCI-6533, PCI-6534 support"
 	select COMEDI_MITE
 	select COMEDI_8255
 	---help---
 	  Enable support for National Instruments PCI-DIO-32HS, PXI-6533,
-	  PCI-DIO-96, PCI-DIO-96B, PXI-6508, PCI-6503, PCI-6503B, PCI-6503X,
-	  PXI-6503, PCI-6533 and PCI-6534
-	  The DIO-96 appears as four 8255 subdevices. See the 8255
-	  driver notes for details.
+	  PCI-6533 and PCI-6534
 
 	  To compile this driver as a module, choose M here: the module will be
 	  called ni_pcidio.
@@ -1262,8 +1252,8 @@ config COMEDI_8255
 	  that has an 8255 chip. For multifunction boards, the main driver will
 	  configure the 8255 subdevice automatically.
 
-	  Note that most PCI 8255 boards do NOT work with this driver, and
-	  need a separate driver as a wrapper.
+	  Note that most PCI based 8255 boards use the 8255_pci driver as a
+	  wrapper around this driver.
 
 	  To compile this driver as a module, choose M here: the module will be
 	  called 8255.
diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
index 8ea55aef10a..133f013e0f6 100644
--- a/drivers/staging/comedi/comedi.h
+++ b/drivers/staging/comedi/comedi.h
@@ -208,92 +208,92 @@
 
 /* subdevice types */
 
-	enum comedi_subdevice_type {
-		COMEDI_SUBD_UNUSED,	/* unused by driver */
-		COMEDI_SUBD_AI,	/* analog input */
-		COMEDI_SUBD_AO,	/* analog output */
-		COMEDI_SUBD_DI,	/* digital input */
-		COMEDI_SUBD_DO,	/* digital output */
-		COMEDI_SUBD_DIO,	/* digital input/output */
-		COMEDI_SUBD_COUNTER,	/* counter */
-		COMEDI_SUBD_TIMER,	/* timer */
-		COMEDI_SUBD_MEMORY,	/* memory, EEPROM, DPRAM */
-		COMEDI_SUBD_CALIB,	/* calibration DACs */
-		COMEDI_SUBD_PROC,	/* processor, DSP */
-		COMEDI_SUBD_SERIAL,	/* serial IO */
-		COMEDI_SUBD_PWM	/* PWM */
-	};
+enum comedi_subdevice_type {
+	COMEDI_SUBD_UNUSED,	/* unused by driver */
+	COMEDI_SUBD_AI,		/* analog input */
+	COMEDI_SUBD_AO,		/* analog output */
+	COMEDI_SUBD_DI,		/* digital input */
+	COMEDI_SUBD_DO,		/* digital output */
+	COMEDI_SUBD_DIO,	/* digital input/output */
+	COMEDI_SUBD_COUNTER,	/* counter */
+	COMEDI_SUBD_TIMER,	/* timer */
+	COMEDI_SUBD_MEMORY,	/* memory, EEPROM, DPRAM */
+	COMEDI_SUBD_CALIB,	/* calibration DACs */
+	COMEDI_SUBD_PROC,	/* processor, DSP */
+	COMEDI_SUBD_SERIAL,	/* serial IO */
+	COMEDI_SUBD_PWM		/* PWM */
+};
 
 /* configuration instructions */
 
-	enum configuration_ids {
-		INSN_CONFIG_DIO_INPUT = 0,
-		INSN_CONFIG_DIO_OUTPUT = 1,
-		INSN_CONFIG_DIO_OPENDRAIN = 2,
-		INSN_CONFIG_ANALOG_TRIG = 16,
+enum configuration_ids {
+	INSN_CONFIG_DIO_INPUT = 0,
+	INSN_CONFIG_DIO_OUTPUT = 1,
+	INSN_CONFIG_DIO_OPENDRAIN = 2,
+	INSN_CONFIG_ANALOG_TRIG = 16,
 /*	INSN_CONFIG_WAVEFORM = 17, */
 /*	INSN_CONFIG_TRIG = 18, */
 /*	INSN_CONFIG_COUNTER = 19, */
-		INSN_CONFIG_ALT_SOURCE = 20,
-		INSN_CONFIG_DIGITAL_TRIG = 21,
-		INSN_CONFIG_BLOCK_SIZE = 22,
-		INSN_CONFIG_TIMER_1 = 23,
-		INSN_CONFIG_FILTER = 24,
-		INSN_CONFIG_CHANGE_NOTIFY = 25,
-
-		 /*ALPHA*/ INSN_CONFIG_SERIAL_CLOCK = 26,
-		INSN_CONFIG_BIDIRECTIONAL_DATA = 27,
-		INSN_CONFIG_DIO_QUERY = 28,
-		INSN_CONFIG_PWM_OUTPUT = 29,
-		INSN_CONFIG_GET_PWM_OUTPUT = 30,
-		INSN_CONFIG_ARM = 31,
-		INSN_CONFIG_DISARM = 32,
-		INSN_CONFIG_GET_COUNTER_STATUS = 33,
-		INSN_CONFIG_RESET = 34,
-		/* Use CTR as single pulsegenerator */
-		INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001,
-		/* Use CTR as pulsetraingenerator */
-		INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002,
-		/* Use the counter as encoder */
-		INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003,
-		INSN_CONFIG_SET_GATE_SRC = 2001,	/* Set gate source */
-		INSN_CONFIG_GET_GATE_SRC = 2002,	/* Get gate source */
-		/* Set master clock source */
-		INSN_CONFIG_SET_CLOCK_SRC = 2003,
-		INSN_CONFIG_GET_CLOCK_SRC = 2004, /* Get master clock source */
-		INSN_CONFIG_SET_OTHER_SRC = 2005, /* Set other source */
-		/* INSN_CONFIG_GET_OTHER_SRC = 2006,*//* Get other source */
-		/* Get size in bytes of subdevice's on-board fifos used during
-		 * streaming input/output */
-		INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
-		INSN_CONFIG_SET_COUNTER_MODE = 4097,
-		/* INSN_CONFIG_8254_SET_MODE is deprecated */
-		INSN_CONFIG_8254_SET_MODE = INSN_CONFIG_SET_COUNTER_MODE,
-		INSN_CONFIG_8254_READ_STATUS = 4098,
-		INSN_CONFIG_SET_ROUTING = 4099,
-		INSN_CONFIG_GET_ROUTING = 4109,
-/* PWM */
-		INSN_CONFIG_PWM_SET_PERIOD = 5000,	/* sets frequency */
-		INSN_CONFIG_PWM_GET_PERIOD = 5001,	/* gets frequency */
-		INSN_CONFIG_GET_PWM_STATUS = 5002,	/* is it running? */
-		/* sets H bridge: duty cycle and sign bit for a relay at the
-		 * same time */
-		INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
-		/* gets H bridge data: duty cycle and the sign bit */
-		INSN_CONFIG_PWM_GET_H_BRIDGE = 5004
-	};
-
-	enum comedi_io_direction {
-		COMEDI_INPUT = 0,
-		COMEDI_OUTPUT = 1,
-		COMEDI_OPENDRAIN = 2
-	};
-
-	enum comedi_support_level {
-		COMEDI_UNKNOWN_SUPPORT = 0,
-		COMEDI_SUPPORTED,
-		COMEDI_UNSUPPORTED
-	};
+	INSN_CONFIG_ALT_SOURCE = 20,
+	INSN_CONFIG_DIGITAL_TRIG = 21,
+	INSN_CONFIG_BLOCK_SIZE = 22,
+	INSN_CONFIG_TIMER_1 = 23,
+	INSN_CONFIG_FILTER = 24,
+	INSN_CONFIG_CHANGE_NOTIFY = 25,
+
+	INSN_CONFIG_SERIAL_CLOCK = 26,	/*ALPHA*/
+	INSN_CONFIG_BIDIRECTIONAL_DATA = 27,
+	INSN_CONFIG_DIO_QUERY = 28,
+	INSN_CONFIG_PWM_OUTPUT = 29,
+	INSN_CONFIG_GET_PWM_OUTPUT = 30,
+	INSN_CONFIG_ARM = 31,
+	INSN_CONFIG_DISARM = 32,
+	INSN_CONFIG_GET_COUNTER_STATUS = 33,
+	INSN_CONFIG_RESET = 34,
+	/* Use CTR as single pulsegenerator */
+	INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001,
+	/* Use CTR as pulsetraingenerator */
+	INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002,
+	/* Use the counter as encoder */
+	INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003,
+	INSN_CONFIG_SET_GATE_SRC = 2001,	/* Set gate source */
+	INSN_CONFIG_GET_GATE_SRC = 2002,	/* Get gate source */
+	/* Set master clock source */
+	INSN_CONFIG_SET_CLOCK_SRC = 2003,
+	INSN_CONFIG_GET_CLOCK_SRC = 2004, /* Get master clock source */
+	INSN_CONFIG_SET_OTHER_SRC = 2005, /* Set other source */
+	/* INSN_CONFIG_GET_OTHER_SRC = 2006,*//* Get other source */
+	/* Get size in bytes of subdevice's on-board fifos used during
+	 * streaming input/output */
+	INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
+	INSN_CONFIG_SET_COUNTER_MODE = 4097,
+	/* INSN_CONFIG_8254_SET_MODE is deprecated */
+	INSN_CONFIG_8254_SET_MODE = INSN_CONFIG_SET_COUNTER_MODE,
+	INSN_CONFIG_8254_READ_STATUS = 4098,
+	INSN_CONFIG_SET_ROUTING = 4099,
+	INSN_CONFIG_GET_ROUTING = 4109,
+	/* PWM */
+	INSN_CONFIG_PWM_SET_PERIOD = 5000,	/* sets frequency */
+	INSN_CONFIG_PWM_GET_PERIOD = 5001,	/* gets frequency */
+	INSN_CONFIG_GET_PWM_STATUS = 5002,	/* is it running? */
+	/* sets H bridge: duty cycle and sign bit for a relay at the
+	 * same time */
+	INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
+	/* gets H bridge data: duty cycle and the sign bit */
+	INSN_CONFIG_PWM_GET_H_BRIDGE = 5004
+};
+
+enum comedi_io_direction {
+	COMEDI_INPUT = 0,
+	COMEDI_OUTPUT = 1,
+	COMEDI_OPENDRAIN = 2
+};
+
+enum comedi_support_level {
+	COMEDI_UNKNOWN_SUPPORT = 0,
+	COMEDI_SUPPORTED,
+	COMEDI_UNSUPPORTED
+};
 
 /* ioctls */
 
@@ -317,133 +317,133 @@
 
 /* structures */
 
-	struct comedi_trig {
-		unsigned int subdev;	/* subdevice */
-		unsigned int mode;	/* mode */
-		unsigned int flags;
-		unsigned int n_chan;	/* number of channels */
-		unsigned int *chanlist;	/* channel/range list */
-		short *data;	/* data list, size depends on subd flags */
-		unsigned int n;	/* number of scans */
-		unsigned int trigsrc;
-		unsigned int trigvar;
-		unsigned int trigvar1;
-		unsigned int data_len;
-		unsigned int unused[3];
-	};
-
-	struct comedi_insn {
-		unsigned int insn;
-		unsigned int n;
-		unsigned int __user *data;
-		unsigned int subdev;
-		unsigned int chanspec;
-		unsigned int unused[3];
-	};
-
-	struct comedi_insnlist {
-		unsigned int n_insns;
-		struct comedi_insn __user *insns;
-	};
-
-	struct comedi_cmd {
-		unsigned int subdev;
-		unsigned int flags;
-
-		unsigned int start_src;
-		unsigned int start_arg;
-
-		unsigned int scan_begin_src;
-		unsigned int scan_begin_arg;
-
-		unsigned int convert_src;
-		unsigned int convert_arg;
-
-		unsigned int scan_end_src;
-		unsigned int scan_end_arg;
-
-		unsigned int stop_src;
-		unsigned int stop_arg;
-
-		unsigned int __user *chanlist;	/* channel/range list */
-		unsigned int chanlist_len;
-
-		short __user *data; /* data list, size depends on subd flags */
-		unsigned int data_len;
-	};
-
-	struct comedi_chaninfo {
-		unsigned int subdev;
-		unsigned int __user *maxdata_list;
-		unsigned int __user *flaglist;
-		unsigned int __user *rangelist;
-		unsigned int unused[4];
-	};
-
-	struct comedi_rangeinfo {
-		unsigned int range_type;
-		void __user *range_ptr;
-	};
-
-	struct comedi_krange {
-		int min;	/* fixed point, multiply by 1e-6 */
-		int max;	/* fixed point, multiply by 1e-6 */
-		unsigned int flags;
-	};
-
-	struct comedi_subdinfo {
-		unsigned int type;
-		unsigned int n_chan;
-		unsigned int subd_flags;
-		unsigned int timer_type;
-		unsigned int len_chanlist;
-		unsigned int maxdata;
-		unsigned int flags;	/* channel flags */
-		unsigned int range_type;	/* lookup in kernel */
-		unsigned int settling_time_0;
-		/* see support_level enum for values */
-		unsigned insn_bits_support;
-		unsigned int unused[8];
-	};
-
-	struct comedi_devinfo {
-		unsigned int version_code;
-		unsigned int n_subdevs;
-		char driver_name[COMEDI_NAMELEN];
-		char board_name[COMEDI_NAMELEN];
-		int read_subdevice;
-		int write_subdevice;
-		int unused[30];
-	};
-
-	struct comedi_devconfig {
-		char board_name[COMEDI_NAMELEN];
-		int options[COMEDI_NDEVCONFOPTS];
-	};
-
-	struct comedi_bufconfig {
-		unsigned int subdevice;
-		unsigned int flags;
-
-		unsigned int maximum_size;
-		unsigned int size;
-
-		unsigned int unused[4];
-	};
-
-	struct comedi_bufinfo {
-		unsigned int subdevice;
-		unsigned int bytes_read;
-
-		unsigned int buf_write_ptr;
-		unsigned int buf_read_ptr;
-		unsigned int buf_write_count;
-		unsigned int buf_read_count;
-
-		unsigned int bytes_written;
-
-		unsigned int unused[4];
-	};
+struct comedi_trig {
+	unsigned int subdev;	/* subdevice */
+	unsigned int mode;	/* mode */
+	unsigned int flags;
+	unsigned int n_chan;	/* number of channels */
+	unsigned int *chanlist;	/* channel/range list */
+	short *data;		/* data list, size depends on subd flags */
+	unsigned int n;		/* number of scans */
+	unsigned int trigsrc;
+	unsigned int trigvar;
+	unsigned int trigvar1;
+	unsigned int data_len;
+	unsigned int unused[3];
+};
+
+struct comedi_insn {
+	unsigned int insn;
+	unsigned int n;
+	unsigned int __user *data;
+	unsigned int subdev;
+	unsigned int chanspec;
+	unsigned int unused[3];
+};
+
+struct comedi_insnlist {
+	unsigned int n_insns;
+	struct comedi_insn __user *insns;
+};
+
+struct comedi_cmd {
+	unsigned int subdev;
+	unsigned int flags;
+
+	unsigned int start_src;
+	unsigned int start_arg;
+
+	unsigned int scan_begin_src;
+	unsigned int scan_begin_arg;
+
+	unsigned int convert_src;
+	unsigned int convert_arg;
+
+	unsigned int scan_end_src;
+	unsigned int scan_end_arg;
+
+	unsigned int stop_src;
+	unsigned int stop_arg;
+
+	unsigned int *chanlist;	/* channel/range list */
+	unsigned int chanlist_len;
+
+	short __user *data; /* data list, size depends on subd flags */
+	unsigned int data_len;
+};
+
+struct comedi_chaninfo {
+	unsigned int subdev;
+	unsigned int __user *maxdata_list;
+	unsigned int __user *flaglist;
+	unsigned int __user *rangelist;
+	unsigned int unused[4];
+};
+
+struct comedi_rangeinfo {
+	unsigned int range_type;
+	void __user *range_ptr;
+};
+
+struct comedi_krange {
+	int min;	/* fixed point, multiply by 1e-6 */
+	int max;	/* fixed point, multiply by 1e-6 */
+	unsigned int flags;
+};
+
+struct comedi_subdinfo {
+	unsigned int type;
+	unsigned int n_chan;
+	unsigned int subd_flags;
+	unsigned int timer_type;
+	unsigned int len_chanlist;
+	unsigned int maxdata;
+	unsigned int flags;		/* channel flags */
+	unsigned int range_type;	/* lookup in kernel */
+	unsigned int settling_time_0;
+	/* see support_level enum for values */
+	unsigned insn_bits_support;
+	unsigned int unused[8];
+};
+
+struct comedi_devinfo {
+	unsigned int version_code;
+	unsigned int n_subdevs;
+	char driver_name[COMEDI_NAMELEN];
+	char board_name[COMEDI_NAMELEN];
+	int read_subdevice;
+	int write_subdevice;
+	int unused[30];
+};
+
+struct comedi_devconfig {
+	char board_name[COMEDI_NAMELEN];
+	int options[COMEDI_NDEVCONFOPTS];
+};
+
+struct comedi_bufconfig {
+	unsigned int subdevice;
+	unsigned int flags;
+
+	unsigned int maximum_size;
+	unsigned int size;
+
+	unsigned int unused[4];
+};
+
+struct comedi_bufinfo {
+	unsigned int subdevice;
+	unsigned int bytes_read;
+
+	unsigned int buf_write_ptr;
+	unsigned int buf_read_ptr;
+	unsigned int buf_write_count;
+	unsigned int buf_read_count;
+
+	unsigned int bytes_written;
+
+	unsigned int unused[4];
+};
 
 /* range stuff */
 
@@ -495,306 +495,306 @@
 
 */
 
-	enum i8254_mode {
-		I8254_MODE0 = (0 << 1),	/* Interrupt on terminal count */
-		I8254_MODE1 = (1 << 1),	/* Hardware retriggerable one-shot */
-		I8254_MODE2 = (2 << 1),	/* Rate generator */
-		I8254_MODE3 = (3 << 1),	/* Square wave mode */
-		I8254_MODE4 = (4 << 1),	/* Software triggered strobe */
-		I8254_MODE5 = (5 << 1),	/* Hardware triggered strobe
-					 * (retriggerable) */
-		I8254_BCD = 1,	/* use binary-coded decimal instead of binary
+enum i8254_mode {
+	I8254_MODE0 = (0 << 1),	/* Interrupt on terminal count */
+	I8254_MODE1 = (1 << 1),	/* Hardware retriggerable one-shot */
+	I8254_MODE2 = (2 << 1),	/* Rate generator */
+	I8254_MODE3 = (3 << 1),	/* Square wave mode */
+	I8254_MODE4 = (4 << 1),	/* Software triggered strobe */
+	I8254_MODE5 = (5 << 1),	/* Hardware triggered strobe
+				 * (retriggerable) */
+	I8254_BCD = 1,		/* use binary-coded decimal instead of binary
 				 * (pretty useless) */
-		I8254_BINARY = 0
-	};
-
-	static inline unsigned NI_USUAL_PFI_SELECT(unsigned pfi_channel)
-	{
-		if (pfi_channel < 10)
-			return 0x1 + pfi_channel;
-		else
-			return 0xb + pfi_channel;
-	}
-
-	static inline unsigned NI_USUAL_RTSI_SELECT(unsigned rtsi_channel)
-	{
-		if (rtsi_channel < 7)
-			return 0xb + rtsi_channel;
-		else
-			return 0x1b;
-	}
+	I8254_BINARY = 0
+};
+
+static inline unsigned NI_USUAL_PFI_SELECT(unsigned pfi_channel)
+{
+	if (pfi_channel < 10)
+		return 0x1 + pfi_channel;
+	else
+		return 0xb + pfi_channel;
+}
+
+static inline unsigned NI_USUAL_RTSI_SELECT(unsigned rtsi_channel)
+{
+	if (rtsi_channel < 7)
+		return 0xb + rtsi_channel;
+	else
+		return 0x1b;
+}
 
 /* mode bits for NI general-purpose counters, set with
  * INSN_CONFIG_SET_COUNTER_MODE */
 #define NI_GPCT_COUNTING_MODE_SHIFT 16
 #define NI_GPCT_INDEX_PHASE_BITSHIFT 20
 #define NI_GPCT_COUNTING_DIRECTION_SHIFT 24
-	enum ni_gpct_mode_bits {
-		NI_GPCT_GATE_ON_BOTH_EDGES_BIT = 0x4,
-		NI_GPCT_EDGE_GATE_MODE_MASK = 0x18,
-		NI_GPCT_EDGE_GATE_STARTS_STOPS_BITS = 0x0,
-		NI_GPCT_EDGE_GATE_STOPS_STARTS_BITS = 0x8,
-		NI_GPCT_EDGE_GATE_STARTS_BITS = 0x10,
-		NI_GPCT_EDGE_GATE_NO_STARTS_NO_STOPS_BITS = 0x18,
-		NI_GPCT_STOP_MODE_MASK = 0x60,
-		NI_GPCT_STOP_ON_GATE_BITS = 0x00,
-		NI_GPCT_STOP_ON_GATE_OR_TC_BITS = 0x20,
-		NI_GPCT_STOP_ON_GATE_OR_SECOND_TC_BITS = 0x40,
-		NI_GPCT_LOAD_B_SELECT_BIT = 0x80,
-		NI_GPCT_OUTPUT_MODE_MASK = 0x300,
-		NI_GPCT_OUTPUT_TC_PULSE_BITS = 0x100,
-		NI_GPCT_OUTPUT_TC_TOGGLE_BITS = 0x200,
-		NI_GPCT_OUTPUT_TC_OR_GATE_TOGGLE_BITS = 0x300,
-		NI_GPCT_HARDWARE_DISARM_MASK = 0xc00,
-		NI_GPCT_NO_HARDWARE_DISARM_BITS = 0x000,
-		NI_GPCT_DISARM_AT_TC_BITS = 0x400,
-		NI_GPCT_DISARM_AT_GATE_BITS = 0x800,
-		NI_GPCT_DISARM_AT_TC_OR_GATE_BITS = 0xc00,
-		NI_GPCT_LOADING_ON_TC_BIT = 0x1000,
-		NI_GPCT_LOADING_ON_GATE_BIT = 0x4000,
-		NI_GPCT_COUNTING_MODE_MASK = 0x7 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_COUNTING_MODE_NORMAL_BITS =
-		    0x0 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_COUNTING_MODE_QUADRATURE_X1_BITS =
-		    0x1 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_COUNTING_MODE_QUADRATURE_X2_BITS =
-		    0x2 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_COUNTING_MODE_QUADRATURE_X4_BITS =
-		    0x3 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_COUNTING_MODE_TWO_PULSE_BITS =
-		    0x4 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_COUNTING_MODE_SYNC_SOURCE_BITS =
-		    0x6 << NI_GPCT_COUNTING_MODE_SHIFT,
-		NI_GPCT_INDEX_PHASE_MASK = 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-		NI_GPCT_INDEX_PHASE_LOW_A_LOW_B_BITS =
-		    0x0 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-		NI_GPCT_INDEX_PHASE_LOW_A_HIGH_B_BITS =
-		    0x1 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-		NI_GPCT_INDEX_PHASE_HIGH_A_LOW_B_BITS =
-		    0x2 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-		NI_GPCT_INDEX_PHASE_HIGH_A_HIGH_B_BITS =
-		    0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-		NI_GPCT_INDEX_ENABLE_BIT = 0x400000,
-		NI_GPCT_COUNTING_DIRECTION_MASK =
-		    0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-		NI_GPCT_COUNTING_DIRECTION_DOWN_BITS =
-		    0x00 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-		NI_GPCT_COUNTING_DIRECTION_UP_BITS =
-		    0x1 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-		NI_GPCT_COUNTING_DIRECTION_HW_UP_DOWN_BITS =
-		    0x2 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-		NI_GPCT_COUNTING_DIRECTION_HW_GATE_BITS =
-		    0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-		NI_GPCT_RELOAD_SOURCE_MASK = 0xc000000,
-		NI_GPCT_RELOAD_SOURCE_FIXED_BITS = 0x0,
-		NI_GPCT_RELOAD_SOURCE_SWITCHING_BITS = 0x4000000,
-		NI_GPCT_RELOAD_SOURCE_GATE_SELECT_BITS = 0x8000000,
-		NI_GPCT_OR_GATE_BIT = 0x10000000,
-		NI_GPCT_INVERT_OUTPUT_BIT = 0x20000000
-	};
+enum ni_gpct_mode_bits {
+	NI_GPCT_GATE_ON_BOTH_EDGES_BIT = 0x4,
+	NI_GPCT_EDGE_GATE_MODE_MASK = 0x18,
+	NI_GPCT_EDGE_GATE_STARTS_STOPS_BITS = 0x0,
+	NI_GPCT_EDGE_GATE_STOPS_STARTS_BITS = 0x8,
+	NI_GPCT_EDGE_GATE_STARTS_BITS = 0x10,
+	NI_GPCT_EDGE_GATE_NO_STARTS_NO_STOPS_BITS = 0x18,
+	NI_GPCT_STOP_MODE_MASK = 0x60,
+	NI_GPCT_STOP_ON_GATE_BITS = 0x00,
+	NI_GPCT_STOP_ON_GATE_OR_TC_BITS = 0x20,
+	NI_GPCT_STOP_ON_GATE_OR_SECOND_TC_BITS = 0x40,
+	NI_GPCT_LOAD_B_SELECT_BIT = 0x80,
+	NI_GPCT_OUTPUT_MODE_MASK = 0x300,
+	NI_GPCT_OUTPUT_TC_PULSE_BITS = 0x100,
+	NI_GPCT_OUTPUT_TC_TOGGLE_BITS = 0x200,
+	NI_GPCT_OUTPUT_TC_OR_GATE_TOGGLE_BITS = 0x300,
+	NI_GPCT_HARDWARE_DISARM_MASK = 0xc00,
+	NI_GPCT_NO_HARDWARE_DISARM_BITS = 0x000,
+	NI_GPCT_DISARM_AT_TC_BITS = 0x400,
+	NI_GPCT_DISARM_AT_GATE_BITS = 0x800,
+	NI_GPCT_DISARM_AT_TC_OR_GATE_BITS = 0xc00,
+	NI_GPCT_LOADING_ON_TC_BIT = 0x1000,
+	NI_GPCT_LOADING_ON_GATE_BIT = 0x4000,
+	NI_GPCT_COUNTING_MODE_MASK = 0x7 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_COUNTING_MODE_NORMAL_BITS =
+		0x0 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_COUNTING_MODE_QUADRATURE_X1_BITS =
+		0x1 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_COUNTING_MODE_QUADRATURE_X2_BITS =
+		0x2 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_COUNTING_MODE_QUADRATURE_X4_BITS =
+		0x3 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_COUNTING_MODE_TWO_PULSE_BITS =
+		0x4 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_COUNTING_MODE_SYNC_SOURCE_BITS =
+		0x6 << NI_GPCT_COUNTING_MODE_SHIFT,
+	NI_GPCT_INDEX_PHASE_MASK = 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+	NI_GPCT_INDEX_PHASE_LOW_A_LOW_B_BITS =
+		0x0 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+	NI_GPCT_INDEX_PHASE_LOW_A_HIGH_B_BITS =
+		0x1 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+	NI_GPCT_INDEX_PHASE_HIGH_A_LOW_B_BITS =
+		0x2 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+	NI_GPCT_INDEX_PHASE_HIGH_A_HIGH_B_BITS =
+		0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
+	NI_GPCT_INDEX_ENABLE_BIT = 0x400000,
+	NI_GPCT_COUNTING_DIRECTION_MASK =
+		0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+	NI_GPCT_COUNTING_DIRECTION_DOWN_BITS =
+		0x00 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+	NI_GPCT_COUNTING_DIRECTION_UP_BITS =
+		0x1 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+	NI_GPCT_COUNTING_DIRECTION_HW_UP_DOWN_BITS =
+		0x2 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+	NI_GPCT_COUNTING_DIRECTION_HW_GATE_BITS =
+		0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
+	NI_GPCT_RELOAD_SOURCE_MASK = 0xc000000,
+	NI_GPCT_RELOAD_SOURCE_FIXED_BITS = 0x0,
+	NI_GPCT_RELOAD_SOURCE_SWITCHING_BITS = 0x4000000,
+	NI_GPCT_RELOAD_SOURCE_GATE_SELECT_BITS = 0x8000000,
+	NI_GPCT_OR_GATE_BIT = 0x10000000,
+	NI_GPCT_INVERT_OUTPUT_BIT = 0x20000000
+};
 
 /* Bits for setting a clock source with
  * INSN_CONFIG_SET_CLOCK_SRC when using NI general-purpose counters. */
-	enum ni_gpct_clock_source_bits {
-		NI_GPCT_CLOCK_SRC_SELECT_MASK = 0x3f,
-		NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS = 0x0,
-		NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS = 0x1,
-		NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS = 0x2,
-		NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS = 0x3,
-		NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS = 0x4,
-		NI_GPCT_NEXT_TC_CLOCK_SRC_BITS = 0x5,
-		/* NI 660x-specific */
-		NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS = 0x6,
-		NI_GPCT_PXI10_CLOCK_SRC_BITS = 0x7,
-		NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS = 0x8,
-		NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS = 0x9,
-		NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK = 0x30000000,
-		NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS = 0x0,
-		/* divide source by 2 */
-		NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS = 0x10000000,
-		/* divide source by 8 */
-		NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS = 0x20000000,
-		NI_GPCT_INVERT_CLOCK_SRC_BIT = 0x80000000
-	};
-	static inline unsigned NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(unsigned n)
-	{
-		/* NI 660x-specific */
-		return 0x10 + n;
-	}
-	static inline unsigned NI_GPCT_RTSI_CLOCK_SRC_BITS(unsigned n)
-	{
-		return 0x18 + n;
-	}
-	static inline unsigned NI_GPCT_PFI_CLOCK_SRC_BITS(unsigned n)
-	{
-		/* no pfi on NI 660x */
-		return 0x20 + n;
-	}
+enum ni_gpct_clock_source_bits {
+	NI_GPCT_CLOCK_SRC_SELECT_MASK = 0x3f,
+	NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS = 0x0,
+	NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS = 0x1,
+	NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS = 0x2,
+	NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS = 0x3,
+	NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS = 0x4,
+	NI_GPCT_NEXT_TC_CLOCK_SRC_BITS = 0x5,
+	/* NI 660x-specific */
+	NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS = 0x6,
+	NI_GPCT_PXI10_CLOCK_SRC_BITS = 0x7,
+	NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS = 0x8,
+	NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS = 0x9,
+	NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK = 0x30000000,
+	NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS = 0x0,
+	/* divide source by 2 */
+	NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS = 0x10000000,
+	/* divide source by 8 */
+	NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS = 0x20000000,
+	NI_GPCT_INVERT_CLOCK_SRC_BIT = 0x80000000
+};
+static inline unsigned NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(unsigned n)
+{
+	/* NI 660x-specific */
+	return 0x10 + n;
+}
+static inline unsigned NI_GPCT_RTSI_CLOCK_SRC_BITS(unsigned n)
+{
+	return 0x18 + n;
+}
+static inline unsigned NI_GPCT_PFI_CLOCK_SRC_BITS(unsigned n)
+{
+	/* no pfi on NI 660x */
+	return 0x20 + n;
+}
 
 /* Possibilities for setting a gate source with
 INSN_CONFIG_SET_GATE_SRC when using NI general-purpose counters.
 May be bitwise-or'd with CR_EDGE or CR_INVERT. */
-	enum ni_gpct_gate_select {
-		/* m-series gates */
-		NI_GPCT_TIMESTAMP_MUX_GATE_SELECT = 0x0,
-		NI_GPCT_AI_START2_GATE_SELECT = 0x12,
-		NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT = 0x13,
-		NI_GPCT_NEXT_OUT_GATE_SELECT = 0x14,
-		NI_GPCT_AI_START1_GATE_SELECT = 0x1c,
-		NI_GPCT_NEXT_SOURCE_GATE_SELECT = 0x1d,
-		NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT = 0x1e,
-		NI_GPCT_LOGIC_LOW_GATE_SELECT = 0x1f,
-		/* more gates for 660x */
-		NI_GPCT_SOURCE_PIN_i_GATE_SELECT = 0x100,
-		NI_GPCT_GATE_PIN_i_GATE_SELECT = 0x101,
-		/* more gates for 660x "second gate" */
-		NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT = 0x201,
-		NI_GPCT_SELECTED_GATE_GATE_SELECT = 0x21e,
-		/* m-series "second gate" sources are unknown,
-		 * we should add them here with an offset of 0x300 when
-		 * known. */
-		NI_GPCT_DISABLED_GATE_SELECT = 0x8000,
-	};
-	static inline unsigned NI_GPCT_GATE_PIN_GATE_SELECT(unsigned n)
-	{
-		return 0x102 + n;
-	}
-	static inline unsigned NI_GPCT_RTSI_GATE_SELECT(unsigned n)
-	{
-		return NI_USUAL_RTSI_SELECT(n);
-	}
-	static inline unsigned NI_GPCT_PFI_GATE_SELECT(unsigned n)
-	{
-		return NI_USUAL_PFI_SELECT(n);
-	}
-	static inline unsigned NI_GPCT_UP_DOWN_PIN_GATE_SELECT(unsigned n)
-	{
-		return 0x202 + n;
-	}
+enum ni_gpct_gate_select {
+	/* m-series gates */
+	NI_GPCT_TIMESTAMP_MUX_GATE_SELECT = 0x0,
+	NI_GPCT_AI_START2_GATE_SELECT = 0x12,
+	NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT = 0x13,
+	NI_GPCT_NEXT_OUT_GATE_SELECT = 0x14,
+	NI_GPCT_AI_START1_GATE_SELECT = 0x1c,
+	NI_GPCT_NEXT_SOURCE_GATE_SELECT = 0x1d,
+	NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT = 0x1e,
+	NI_GPCT_LOGIC_LOW_GATE_SELECT = 0x1f,
+	/* more gates for 660x */
+	NI_GPCT_SOURCE_PIN_i_GATE_SELECT = 0x100,
+	NI_GPCT_GATE_PIN_i_GATE_SELECT = 0x101,
+	/* more gates for 660x "second gate" */
+	NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT = 0x201,
+	NI_GPCT_SELECTED_GATE_GATE_SELECT = 0x21e,
+	/* m-series "second gate" sources are unknown,
+	 * we should add them here with an offset of 0x300 when
+	 * known. */
+	NI_GPCT_DISABLED_GATE_SELECT = 0x8000,
+};
+static inline unsigned NI_GPCT_GATE_PIN_GATE_SELECT(unsigned n)
+{
+	return 0x102 + n;
+}
+static inline unsigned NI_GPCT_RTSI_GATE_SELECT(unsigned n)
+{
+	return NI_USUAL_RTSI_SELECT(n);
+}
+static inline unsigned NI_GPCT_PFI_GATE_SELECT(unsigned n)
+{
+	return NI_USUAL_PFI_SELECT(n);
+}
+static inline unsigned NI_GPCT_UP_DOWN_PIN_GATE_SELECT(unsigned n)
+{
+	return 0x202 + n;
+}
 
 /* Possibilities for setting a source with
 INSN_CONFIG_SET_OTHER_SRC when using NI general-purpose counters. */
-	enum ni_gpct_other_index {
-		NI_GPCT_SOURCE_ENCODER_A,
-		NI_GPCT_SOURCE_ENCODER_B,
-		NI_GPCT_SOURCE_ENCODER_Z
-	};
-	enum ni_gpct_other_select {
-		/* m-series gates */
-		/* Still unknown, probably only need NI_GPCT_PFI_OTHER_SELECT */
-		NI_GPCT_DISABLED_OTHER_SELECT = 0x8000,
-	};
-	static inline unsigned NI_GPCT_PFI_OTHER_SELECT(unsigned n)
-	{
-		return NI_USUAL_PFI_SELECT(n);
-	}
+enum ni_gpct_other_index {
+	NI_GPCT_SOURCE_ENCODER_A,
+	NI_GPCT_SOURCE_ENCODER_B,
+	NI_GPCT_SOURCE_ENCODER_Z
+};
+enum ni_gpct_other_select {
+	/* m-series gates */
+	/* Still unknown, probably only need NI_GPCT_PFI_OTHER_SELECT */
+	NI_GPCT_DISABLED_OTHER_SELECT = 0x8000,
+};
+static inline unsigned NI_GPCT_PFI_OTHER_SELECT(unsigned n)
+{
+	return NI_USUAL_PFI_SELECT(n);
+}
 
 /* start sources for ni general-purpose counters for use with
 INSN_CONFIG_ARM */
-	enum ni_gpct_arm_source {
-		NI_GPCT_ARM_IMMEDIATE = 0x0,
-		NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1, /* Start both the counter
-						     * and the adjacent paired
-						     * counter simultaneously */
-		/* NI doesn't document bits for selecting hardware arm triggers.
-		 * If the NI_GPCT_ARM_UNKNOWN bit is set, we will pass the least
-		 * significant bits (3 bits for 660x or 5 bits for m-series)
-		 * through to the hardware.  This will at least allow someone to
-		 * figure out what the bits do later. */
-		NI_GPCT_ARM_UNKNOWN = 0x1000,
-	};
+enum ni_gpct_arm_source {
+	NI_GPCT_ARM_IMMEDIATE = 0x0,
+	NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1, /* Start both the counter
+					     * and the adjacent paired
+					     * counter simultaneously */
+	/* NI doesn't document bits for selecting hardware arm triggers.
+	 * If the NI_GPCT_ARM_UNKNOWN bit is set, we will pass the least
+	 * significant bits (3 bits for 660x or 5 bits for m-series)
+	 * through to the hardware.  This will at least allow someone to
+	 * figure out what the bits do later. */
+	NI_GPCT_ARM_UNKNOWN = 0x1000,
+};
 
 /* digital filtering options for ni 660x for use with INSN_CONFIG_FILTER. */
-	enum ni_gpct_filter_select {
-		NI_GPCT_FILTER_OFF = 0x0,
-		NI_GPCT_FILTER_TIMEBASE_3_SYNC = 0x1,
-		NI_GPCT_FILTER_100x_TIMEBASE_1 = 0x2,
-		NI_GPCT_FILTER_20x_TIMEBASE_1 = 0x3,
-		NI_GPCT_FILTER_10x_TIMEBASE_1 = 0x4,
-		NI_GPCT_FILTER_2x_TIMEBASE_1 = 0x5,
-		NI_GPCT_FILTER_2x_TIMEBASE_3 = 0x6
-	};
+enum ni_gpct_filter_select {
+	NI_GPCT_FILTER_OFF = 0x0,
+	NI_GPCT_FILTER_TIMEBASE_3_SYNC = 0x1,
+	NI_GPCT_FILTER_100x_TIMEBASE_1 = 0x2,
+	NI_GPCT_FILTER_20x_TIMEBASE_1 = 0x3,
+	NI_GPCT_FILTER_10x_TIMEBASE_1 = 0x4,
+	NI_GPCT_FILTER_2x_TIMEBASE_1 = 0x5,
+	NI_GPCT_FILTER_2x_TIMEBASE_3 = 0x6
+};
 
 /* PFI digital filtering options for ni m-series for use with
  * INSN_CONFIG_FILTER. */
-	enum ni_pfi_filter_select {
-		NI_PFI_FILTER_OFF = 0x0,
-		NI_PFI_FILTER_125ns = 0x1,
-		NI_PFI_FILTER_6425ns = 0x2,
-		NI_PFI_FILTER_2550us = 0x3
-	};
+enum ni_pfi_filter_select {
+	NI_PFI_FILTER_OFF = 0x0,
+	NI_PFI_FILTER_125ns = 0x1,
+	NI_PFI_FILTER_6425ns = 0x2,
+	NI_PFI_FILTER_2550us = 0x3
+};
 
 /* master clock sources for ni mio boards and INSN_CONFIG_SET_CLOCK_SRC */
-	enum ni_mio_clock_source {
-		NI_MIO_INTERNAL_CLOCK = 0,
-		NI_MIO_RTSI_CLOCK = 1,	/* doesn't work for m-series, use
-					   NI_MIO_PLL_RTSI_CLOCK() */
-		/* the NI_MIO_PLL_* sources are m-series only */
-		NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK = 2,
-		NI_MIO_PLL_PXI10_CLOCK = 3,
-		NI_MIO_PLL_RTSI0_CLOCK = 4
-	};
-	static inline unsigned NI_MIO_PLL_RTSI_CLOCK(unsigned rtsi_channel)
-	{
-		return NI_MIO_PLL_RTSI0_CLOCK + rtsi_channel;
-	}
+enum ni_mio_clock_source {
+	NI_MIO_INTERNAL_CLOCK = 0,
+	NI_MIO_RTSI_CLOCK = 1,	/* doesn't work for m-series, use
+				   NI_MIO_PLL_RTSI_CLOCK() */
+	/* the NI_MIO_PLL_* sources are m-series only */
+	NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK = 2,
+	NI_MIO_PLL_PXI10_CLOCK = 3,
+	NI_MIO_PLL_RTSI0_CLOCK = 4
+};
+static inline unsigned NI_MIO_PLL_RTSI_CLOCK(unsigned rtsi_channel)
+{
+	return NI_MIO_PLL_RTSI0_CLOCK + rtsi_channel;
+}
 
 /* Signals which can be routed to an NI RTSI pin with INSN_CONFIG_SET_ROUTING.
  The numbers assigned are not arbitrary, they correspond to the bits required
  to program the board. */
-	enum ni_rtsi_routing {
-		NI_RTSI_OUTPUT_ADR_START1 = 0,
-		NI_RTSI_OUTPUT_ADR_START2 = 1,
-		NI_RTSI_OUTPUT_SCLKG = 2,
-		NI_RTSI_OUTPUT_DACUPDN = 3,
-		NI_RTSI_OUTPUT_DA_START1 = 4,
-		NI_RTSI_OUTPUT_G_SRC0 = 5,
-		NI_RTSI_OUTPUT_G_GATE0 = 6,
-		NI_RTSI_OUTPUT_RGOUT0 = 7,
-		NI_RTSI_OUTPUT_RTSI_BRD_0 = 8,
-		NI_RTSI_OUTPUT_RTSI_OSC = 12	/* pre-m-series always have RTSI
-						 * clock on line 7 */
-	};
-	static inline unsigned NI_RTSI_OUTPUT_RTSI_BRD(unsigned n)
-	{
-		return NI_RTSI_OUTPUT_RTSI_BRD_0 + n;
-	}
+enum ni_rtsi_routing {
+	NI_RTSI_OUTPUT_ADR_START1 = 0,
+	NI_RTSI_OUTPUT_ADR_START2 = 1,
+	NI_RTSI_OUTPUT_SCLKG = 2,
+	NI_RTSI_OUTPUT_DACUPDN = 3,
+	NI_RTSI_OUTPUT_DA_START1 = 4,
+	NI_RTSI_OUTPUT_G_SRC0 = 5,
+	NI_RTSI_OUTPUT_G_GATE0 = 6,
+	NI_RTSI_OUTPUT_RGOUT0 = 7,
+	NI_RTSI_OUTPUT_RTSI_BRD_0 = 8,
+	NI_RTSI_OUTPUT_RTSI_OSC = 12	/* pre-m-series always have RTSI
+					 * clock on line 7 */
+};
+static inline unsigned NI_RTSI_OUTPUT_RTSI_BRD(unsigned n)
+{
+	return NI_RTSI_OUTPUT_RTSI_BRD_0 + n;
+}
 
 /* Signals which can be routed to an NI PFI pin on an m-series board with
  * INSN_CONFIG_SET_ROUTING.  These numbers are also returned by
  * INSN_CONFIG_GET_ROUTING on pre-m-series boards, even though their routing
  * cannot be changed.  The numbers assigned are not arbitrary, they correspond
  * to the bits required to program the board. */
-	enum ni_pfi_routing {
-		NI_PFI_OUTPUT_PFI_DEFAULT = 0,
-		NI_PFI_OUTPUT_AI_START1 = 1,
-		NI_PFI_OUTPUT_AI_START2 = 2,
-		NI_PFI_OUTPUT_AI_CONVERT = 3,
-		NI_PFI_OUTPUT_G_SRC1 = 4,
-		NI_PFI_OUTPUT_G_GATE1 = 5,
-		NI_PFI_OUTPUT_AO_UPDATE_N = 6,
-		NI_PFI_OUTPUT_AO_START1 = 7,
-		NI_PFI_OUTPUT_AI_START_PULSE = 8,
-		NI_PFI_OUTPUT_G_SRC0 = 9,
-		NI_PFI_OUTPUT_G_GATE0 = 10,
-		NI_PFI_OUTPUT_EXT_STROBE = 11,
-		NI_PFI_OUTPUT_AI_EXT_MUX_CLK = 12,
-		NI_PFI_OUTPUT_GOUT0 = 13,
-		NI_PFI_OUTPUT_GOUT1 = 14,
-		NI_PFI_OUTPUT_FREQ_OUT = 15,
-		NI_PFI_OUTPUT_PFI_DO = 16,
-		NI_PFI_OUTPUT_I_ATRIG = 17,
-		NI_PFI_OUTPUT_RTSI0 = 18,
-		NI_PFI_OUTPUT_PXI_STAR_TRIGGER_IN = 26,
-		NI_PFI_OUTPUT_SCXI_TRIG1 = 27,
-		NI_PFI_OUTPUT_DIO_CHANGE_DETECT_RTSI = 28,
-		NI_PFI_OUTPUT_CDI_SAMPLE = 29,
-		NI_PFI_OUTPUT_CDO_UPDATE = 30
-	};
-	static inline unsigned NI_PFI_OUTPUT_RTSI(unsigned rtsi_channel)
-	{
-		return NI_PFI_OUTPUT_RTSI0 + rtsi_channel;
-	}
+enum ni_pfi_routing {
+	NI_PFI_OUTPUT_PFI_DEFAULT = 0,
+	NI_PFI_OUTPUT_AI_START1 = 1,
+	NI_PFI_OUTPUT_AI_START2 = 2,
+	NI_PFI_OUTPUT_AI_CONVERT = 3,
+	NI_PFI_OUTPUT_G_SRC1 = 4,
+	NI_PFI_OUTPUT_G_GATE1 = 5,
+	NI_PFI_OUTPUT_AO_UPDATE_N = 6,
+	NI_PFI_OUTPUT_AO_START1 = 7,
+	NI_PFI_OUTPUT_AI_START_PULSE = 8,
+	NI_PFI_OUTPUT_G_SRC0 = 9,
+	NI_PFI_OUTPUT_G_GATE0 = 10,
+	NI_PFI_OUTPUT_EXT_STROBE = 11,
+	NI_PFI_OUTPUT_AI_EXT_MUX_CLK = 12,
+	NI_PFI_OUTPUT_GOUT0 = 13,
+	NI_PFI_OUTPUT_GOUT1 = 14,
+	NI_PFI_OUTPUT_FREQ_OUT = 15,
+	NI_PFI_OUTPUT_PFI_DO = 16,
+	NI_PFI_OUTPUT_I_ATRIG = 17,
+	NI_PFI_OUTPUT_RTSI0 = 18,
+	NI_PFI_OUTPUT_PXI_STAR_TRIGGER_IN = 26,
+	NI_PFI_OUTPUT_SCXI_TRIG1 = 27,
+	NI_PFI_OUTPUT_DIO_CHANGE_DETECT_RTSI = 28,
+	NI_PFI_OUTPUT_CDI_SAMPLE = 29,
+	NI_PFI_OUTPUT_CDO_UPDATE = 30
+};
+static inline unsigned NI_PFI_OUTPUT_RTSI(unsigned rtsi_channel)
+{
+	return NI_PFI_OUTPUT_RTSI0 + rtsi_channel;
+}
 
 /* Signals which can be routed to output on a NI PFI pin on a 660x board
  with INSN_CONFIG_SET_ROUTING.  The numbers assigned are
@@ -802,113 +802,112 @@ INSN_CONFIG_ARM */
  to program the board.  Lines 0 to 7 can only be set to
  NI_660X_PFI_OUTPUT_DIO.  Lines 32 to 39 can only be set to
  NI_660X_PFI_OUTPUT_COUNTER. */
-	enum ni_660x_pfi_routing {
-		NI_660X_PFI_OUTPUT_COUNTER = 1,	/* counter */
-		NI_660X_PFI_OUTPUT_DIO = 2,	/* static digital output */
-	};
+enum ni_660x_pfi_routing {
+	NI_660X_PFI_OUTPUT_COUNTER = 1,	/* counter */
+	NI_660X_PFI_OUTPUT_DIO = 2,	/* static digital output */
+};
 
 /* NI External Trigger lines.  These values are not arbitrary, but are related
  * to the bits required to program the board (offset by 1 for historical
  * reasons). */
-	static inline unsigned NI_EXT_PFI(unsigned pfi_channel)
-	{
-		return NI_USUAL_PFI_SELECT(pfi_channel) - 1;
-	}
-	static inline unsigned NI_EXT_RTSI(unsigned rtsi_channel)
-	{
-		return NI_USUAL_RTSI_SELECT(rtsi_channel) - 1;
-	}
+static inline unsigned NI_EXT_PFI(unsigned pfi_channel)
+{
+	return NI_USUAL_PFI_SELECT(pfi_channel) - 1;
+}
+static inline unsigned NI_EXT_RTSI(unsigned rtsi_channel)
+{
+	return NI_USUAL_RTSI_SELECT(rtsi_channel) - 1;
+}
 
 /* status bits for INSN_CONFIG_GET_COUNTER_STATUS */
-	enum comedi_counter_status_flags {
-		COMEDI_COUNTER_ARMED = 0x1,
-		COMEDI_COUNTER_COUNTING = 0x2,
-		COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
-	};
+enum comedi_counter_status_flags {
+	COMEDI_COUNTER_ARMED = 0x1,
+	COMEDI_COUNTER_COUNTING = 0x2,
+	COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
+};
 
 /* Clock sources for CDIO subdevice on NI m-series boards.  Used as the
  * scan_begin_arg for a comedi_command. These sources may also be bitwise-or'd
  * with CR_INVERT to change polarity. */
-	enum ni_m_series_cdio_scan_begin_src {
-		NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
-		NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
-		NI_CDIO_SCAN_BEGIN_SRC_AI_CONVERT = 19,
-		NI_CDIO_SCAN_BEGIN_SRC_PXI_STAR_TRIGGER = 20,
-		NI_CDIO_SCAN_BEGIN_SRC_G0_OUT = 28,
-		NI_CDIO_SCAN_BEGIN_SRC_G1_OUT = 29,
-		NI_CDIO_SCAN_BEGIN_SRC_ANALOG_TRIGGER = 30,
-		NI_CDIO_SCAN_BEGIN_SRC_AO_UPDATE = 31,
-		NI_CDIO_SCAN_BEGIN_SRC_FREQ_OUT = 32,
-		NI_CDIO_SCAN_BEGIN_SRC_DIO_CHANGE_DETECT_IRQ = 33
-	};
-	static inline unsigned NI_CDIO_SCAN_BEGIN_SRC_PFI(unsigned pfi_channel)
-	{
-		return NI_USUAL_PFI_SELECT(pfi_channel);
-	}
-	static inline unsigned
-		NI_CDIO_SCAN_BEGIN_SRC_RTSI(unsigned rtsi_channel)
-	{
-		return NI_USUAL_RTSI_SELECT(rtsi_channel);
-	}
+enum ni_m_series_cdio_scan_begin_src {
+	NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
+	NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
+	NI_CDIO_SCAN_BEGIN_SRC_AI_CONVERT = 19,
+	NI_CDIO_SCAN_BEGIN_SRC_PXI_STAR_TRIGGER = 20,
+	NI_CDIO_SCAN_BEGIN_SRC_G0_OUT = 28,
+	NI_CDIO_SCAN_BEGIN_SRC_G1_OUT = 29,
+	NI_CDIO_SCAN_BEGIN_SRC_ANALOG_TRIGGER = 30,
+	NI_CDIO_SCAN_BEGIN_SRC_AO_UPDATE = 31,
+	NI_CDIO_SCAN_BEGIN_SRC_FREQ_OUT = 32,
+	NI_CDIO_SCAN_BEGIN_SRC_DIO_CHANGE_DETECT_IRQ = 33
+};
+static inline unsigned NI_CDIO_SCAN_BEGIN_SRC_PFI(unsigned pfi_channel)
+{
+	return NI_USUAL_PFI_SELECT(pfi_channel);
+}
+static inline unsigned NI_CDIO_SCAN_BEGIN_SRC_RTSI(unsigned rtsi_channel)
+{
+	return NI_USUAL_RTSI_SELECT(rtsi_channel);
+}
 
 /* scan_begin_src for scan_begin_arg==TRIG_EXT with analog output command on NI
  * boards.  These scan begin sources can also be bitwise-or'd with CR_INVERT to
  * change polarity. */
-	static inline unsigned NI_AO_SCAN_BEGIN_SRC_PFI(unsigned pfi_channel)
-	{
-		return NI_USUAL_PFI_SELECT(pfi_channel);
-	}
-	static inline unsigned NI_AO_SCAN_BEGIN_SRC_RTSI(unsigned rtsi_channel)
-	{
-		return NI_USUAL_RTSI_SELECT(rtsi_channel);
-	}
+static inline unsigned NI_AO_SCAN_BEGIN_SRC_PFI(unsigned pfi_channel)
+{
+	return NI_USUAL_PFI_SELECT(pfi_channel);
+}
+static inline unsigned NI_AO_SCAN_BEGIN_SRC_RTSI(unsigned rtsi_channel)
+{
+	return NI_USUAL_RTSI_SELECT(rtsi_channel);
+}
 
 /* Bits for setting a clock source with
  * INSN_CONFIG_SET_CLOCK_SRC when using NI frequency output subdevice. */
-	enum ni_freq_out_clock_source_bits {
-		NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC,	/* 10 MHz */
-		NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC	/* 100 KHz */
-	};
+enum ni_freq_out_clock_source_bits {
+	NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC,	/* 10 MHz */
+	NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC	/* 100 KHz */
+};
 
 /* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
  * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
-	enum amplc_dio_clock_source {
-		AMPLC_DIO_CLK_CLKN,	/* per channel external clock
-					   input/output pin (pin is only an
-					   input when clock source set to this
-					   value, otherwise it is an output) */
-		AMPLC_DIO_CLK_10MHZ,	/* 10 MHz internal clock */
-		AMPLC_DIO_CLK_1MHZ,	/* 1 MHz internal clock */
-		AMPLC_DIO_CLK_100KHZ,	/* 100 kHz internal clock */
-		AMPLC_DIO_CLK_10KHZ,	/* 10 kHz internal clock */
-		AMPLC_DIO_CLK_1KHZ,	/* 1 kHz internal clock */
-		AMPLC_DIO_CLK_OUTNM1,	/* output of preceding counter channel
-					   (for channel 0, preceding counter
-					   channel is channel 2 on preceding
-					   counter subdevice, for first counter
-					   subdevice, preceding counter
-					   subdevice is the last counter
-					   subdevice) */
-		AMPLC_DIO_CLK_EXT	/* per chip external input pin */
-	};
+enum amplc_dio_clock_source {
+	AMPLC_DIO_CLK_CLKN,	/* per channel external clock
+				   input/output pin (pin is only an
+				   input when clock source set to this
+				   value, otherwise it is an output) */
+	AMPLC_DIO_CLK_10MHZ,	/* 10 MHz internal clock */
+	AMPLC_DIO_CLK_1MHZ,	/* 1 MHz internal clock */
+	AMPLC_DIO_CLK_100KHZ,	/* 100 kHz internal clock */
+	AMPLC_DIO_CLK_10KHZ,	/* 10 kHz internal clock */
+	AMPLC_DIO_CLK_1KHZ,	/* 1 kHz internal clock */
+	AMPLC_DIO_CLK_OUTNM1,	/* output of preceding counter channel
+				   (for channel 0, preceding counter
+				   channel is channel 2 on preceding
+				   counter subdevice, for first counter
+				   subdevice, preceding counter
+				   subdevice is the last counter
+				   subdevice) */
+	AMPLC_DIO_CLK_EXT	/* per chip external input pin */
+};
 
 /* Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
  * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
-	enum amplc_dio_gate_source {
-		AMPLC_DIO_GAT_VCC,	/* internal high logic level */
-		AMPLC_DIO_GAT_GND,	/* internal low logic level */
-		AMPLC_DIO_GAT_GATN,	/* per channel external gate input */
-		AMPLC_DIO_GAT_NOUTNM2,	/* negated output of counter channel
-					   minus 2 (for channels 0 or 1,
-					   channel minus 2 is channel 1 or 2 on
-					   the preceding counter subdevice, for
-					   the first counter subdevice the
-					   preceding counter subdevice is the
-					   last counter subdevice) */
-		AMPLC_DIO_GAT_RESERVED4,
-		AMPLC_DIO_GAT_RESERVED5,
-		AMPLC_DIO_GAT_RESERVED6,
-		AMPLC_DIO_GAT_RESERVED7
-	};
+enum amplc_dio_gate_source {
+	AMPLC_DIO_GAT_VCC,	/* internal high logic level */
+	AMPLC_DIO_GAT_GND,	/* internal low logic level */
+	AMPLC_DIO_GAT_GATN,	/* per channel external gate input */
+	AMPLC_DIO_GAT_NOUTNM2,	/* negated output of counter channel
+				   minus 2 (for channels 0 or 1,
+				   channel minus 2 is channel 1 or 2 on
+				   the preceding counter subdevice, for
+				   the first counter subdevice the
+				   preceding counter subdevice is the
+				   last counter subdevice) */
+	AMPLC_DIO_GAT_RESERVED4,
+	AMPLC_DIO_GAT_RESERVED5,
+	AMPLC_DIO_GAT_RESERVED6,
+	AMPLC_DIO_GAT_RESERVED7
+};
 
 #endif /* _COMEDI_H */
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index e82126407e9..c2a32cf95a8 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -370,7 +370,8 @@ static int do_devconfig_ioctl(struct comedi_device *dev,
 			return -ENOMEM;
 
 		if (copy_from_user(aux_data,
-				   comedi_aux_data(it.options, 0), aux_len)) {
+				   (unsigned char __user *
+				    )comedi_aux_data(it.options, 0), aux_len)) {
 			vfree(aux_data);
 			return -EFAULT;
 		}
@@ -426,7 +427,7 @@ static int do_bufconfig_ioctl(struct comedi_device *dev,
 	if (bc.subdevice >= dev->n_subdevices || bc.subdevice < 0)
 		return -EINVAL;
 
-	s = dev->subdevices + bc.subdevice;
+	s = &dev->subdevices[bc.subdevice];
 	async = s->async;
 
 	if (!async) {
@@ -539,7 +540,7 @@ static int do_subdinfo_ioctl(struct comedi_device *dev,
 
 	/* fill subdinfo structs */
 	for (i = 0; i < dev->n_subdevices; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		us = tmp + i;
 
 		us->type = s->type;
@@ -617,7 +618,7 @@ static int do_chaninfo_ioctl(struct comedi_device *dev,
 
 	if (it.subdev >= dev->n_subdevices)
 		return -EINVAL;
-	s = dev->subdevices + it.subdev;
+	s = &dev->subdevices[it.subdev];
 
 	if (it.maxdata_list) {
 		if (s->maxdata || !s->maxdata_list)
@@ -685,7 +686,7 @@ static int do_bufinfo_ioctl(struct comedi_device *dev,
 	if (bi.subdevice >= dev->n_subdevices || bi.subdevice < 0)
 		return -EINVAL;
 
-	s = dev->subdevices + bi.subdevice;
+	s = &dev->subdevices[bi.subdevice];
 
 	if (s->lock && s->lock != file)
 		return -EACCES;
@@ -882,14 +883,12 @@ static int check_insn_config_length(struct comedi_insn *insn,
 		/* by default we allow the insn since we don't have checks for
 		 * all possible cases yet */
 	default:
-		printk(KERN_WARNING
-		       "comedi: no check for data length of config insn id "
-		       "%i is implemented.\n"
-		       " Add a check to %s in %s.\n"
-		       " Assuming n=%i is correct.\n", data[0], __func__,
-		       __FILE__, insn->n);
+		pr_warn("comedi: No check for data length of config insn id %i is implemented.\n",
+			data[0]);
+		pr_warn("comedi: Add a check to %s in %s.\n",
+			__func__, __FILE__);
+		pr_warn("comedi: Assuming n=%i is correct.\n", insn->n);
 		return 0;
-		break;
 	}
 	return -EINVAL;
 }
@@ -940,7 +939,7 @@ static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn,
 				ret = -EINVAL;
 				break;
 			}
-			s = dev->subdevices + insn->subdev;
+			s = &dev->subdevices[insn->subdev];
 			if (!s->async) {
 				DPRINTK("no async\n");
 				ret = -EINVAL;
@@ -951,7 +950,7 @@ static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn,
 				ret = -EAGAIN;
 				break;
 			}
-			ret = s->async->inttrig(dev, s, insn->data[0]);
+			ret = s->async->inttrig(dev, s, data[0]);
 			if (ret >= 0)
 				ret = 1;
 			break;
@@ -969,7 +968,7 @@ static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn,
 			ret = -EINVAL;
 			goto out;
 		}
-		s = dev->subdevices + insn->subdev;
+		s = &dev->subdevices[insn->subdev];
 
 		if (s->type == COMEDI_SUBD_UNUSED) {
 			DPRINTK("%d not usable subdevice\n", insn->subdev);
@@ -1133,37 +1132,37 @@ static void comedi_set_subdevice_runflags(struct comedi_subdevice *s,
 }
 
 static int do_cmd_ioctl(struct comedi_device *dev,
-			struct comedi_cmd __user *cmd, void *file)
+			struct comedi_cmd __user *arg, void *file)
 {
-	struct comedi_cmd user_cmd;
+	struct comedi_cmd cmd;
 	struct comedi_subdevice *s;
 	struct comedi_async *async;
 	int ret = 0;
-	unsigned int __user *chanlist_saver = NULL;
+	unsigned int __user *user_chanlist;
 
-	if (copy_from_user(&user_cmd, cmd, sizeof(struct comedi_cmd))) {
+	if (copy_from_user(&cmd, arg, sizeof(struct comedi_cmd))) {
 		DPRINTK("bad cmd address\n");
 		return -EFAULT;
 	}
 	/* save user's chanlist pointer so it can be restored later */
-	chanlist_saver = user_cmd.chanlist;
+	user_chanlist = (unsigned int __user *)cmd.chanlist;
 
-	if (user_cmd.subdev >= dev->n_subdevices) {
-		DPRINTK("%d no such subdevice\n", user_cmd.subdev);
+	if (cmd.subdev >= dev->n_subdevices) {
+		DPRINTK("%d no such subdevice\n", cmd.subdev);
 		return -ENODEV;
 	}
 
-	s = dev->subdevices + user_cmd.subdev;
+	s = &dev->subdevices[cmd.subdev];
 	async = s->async;
 
 	if (s->type == COMEDI_SUBD_UNUSED) {
-		DPRINTK("%d not valid subdevice\n", user_cmd.subdev);
+		DPRINTK("%d not valid subdevice\n", cmd.subdev);
 		return -EIO;
 	}
 
 	if (!s->do_cmd || !s->do_cmdtest || !s->async) {
 		DPRINTK("subdevice %i does not support commands\n",
-			user_cmd.subdev);
+			cmd.subdev);
 		return -EIO;
 	}
 
@@ -1181,23 +1180,22 @@ static int do_cmd_ioctl(struct comedi_device *dev,
 	s->busy = file;
 
 	/* make sure channel/gain list isn't too long */
-	if (user_cmd.chanlist_len > s->len_chanlist) {
+	if (cmd.chanlist_len > s->len_chanlist) {
 		DPRINTK("channel/gain list too long %u > %d\n",
-			user_cmd.chanlist_len, s->len_chanlist);
+			cmd.chanlist_len, s->len_chanlist);
 		ret = -EINVAL;
 		goto cleanup;
 	}
 
 	/* make sure channel/gain list isn't too short */
-	if (user_cmd.chanlist_len < 1) {
+	if (cmd.chanlist_len < 1) {
 		DPRINTK("channel/gain list too short %u < 1\n",
-			user_cmd.chanlist_len);
+			cmd.chanlist_len);
 		ret = -EINVAL;
 		goto cleanup;
 	}
 
-	kfree(async->cmd.chanlist);
-	async->cmd = user_cmd;
+	async->cmd = cmd;
 	async->cmd.data = NULL;
 	/* load channel/gain list */
 	async->cmd.chanlist =
@@ -1208,7 +1206,7 @@ static int do_cmd_ioctl(struct comedi_device *dev,
 		goto cleanup;
 	}
 
-	if (copy_from_user(async->cmd.chanlist, user_cmd.chanlist,
+	if (copy_from_user(async->cmd.chanlist, user_chanlist,
 			   async->cmd.chanlist_len * sizeof(int))) {
 		DPRINTK("fault reading chanlist\n");
 		ret = -EFAULT;
@@ -1228,11 +1226,11 @@ static int do_cmd_ioctl(struct comedi_device *dev,
 
 	if (async->cmd.flags & TRIG_BOGUS || ret) {
 		DPRINTK("test returned %d\n", ret);
-		user_cmd = async->cmd;
+		cmd = async->cmd;
 		/* restore chanlist pointer before copying back */
-		user_cmd.chanlist = chanlist_saver;
-		user_cmd.data = NULL;
-		if (copy_to_user(cmd, &user_cmd, sizeof(struct comedi_cmd))) {
+		cmd.chanlist = (unsigned int __force *)user_chanlist;
+		cmd.data = NULL;
+		if (copy_to_user(arg, &cmd, sizeof(struct comedi_cmd))) {
 			DPRINTK("fault writing cmd\n");
 			ret = -EFAULT;
 			goto cleanup;
@@ -1285,77 +1283,77 @@ cleanup:
 static int do_cmdtest_ioctl(struct comedi_device *dev,
 			    struct comedi_cmd __user *arg, void *file)
 {
-	struct comedi_cmd user_cmd;
+	struct comedi_cmd cmd;
 	struct comedi_subdevice *s;
 	int ret = 0;
 	unsigned int *chanlist = NULL;
-	unsigned int __user *chanlist_saver = NULL;
+	unsigned int __user *user_chanlist;
 
-	if (copy_from_user(&user_cmd, arg, sizeof(struct comedi_cmd))) {
+	if (copy_from_user(&cmd, arg, sizeof(struct comedi_cmd))) {
 		DPRINTK("bad cmd address\n");
 		return -EFAULT;
 	}
 	/* save user's chanlist pointer so it can be restored later */
-	chanlist_saver = user_cmd.chanlist;
+	user_chanlist = (unsigned int __user *)cmd.chanlist;
 
-	if (user_cmd.subdev >= dev->n_subdevices) {
-		DPRINTK("%d no such subdevice\n", user_cmd.subdev);
+	if (cmd.subdev >= dev->n_subdevices) {
+		DPRINTK("%d no such subdevice\n", cmd.subdev);
 		return -ENODEV;
 	}
 
-	s = dev->subdevices + user_cmd.subdev;
+	s = &dev->subdevices[cmd.subdev];
 	if (s->type == COMEDI_SUBD_UNUSED) {
-		DPRINTK("%d not valid subdevice\n", user_cmd.subdev);
+		DPRINTK("%d not valid subdevice\n", cmd.subdev);
 		return -EIO;
 	}
 
 	if (!s->do_cmd || !s->do_cmdtest) {
 		DPRINTK("subdevice %i does not support commands\n",
-			user_cmd.subdev);
+			cmd.subdev);
 		return -EIO;
 	}
 
 	/* make sure channel/gain list isn't too long */
-	if (user_cmd.chanlist_len > s->len_chanlist) {
+	if (cmd.chanlist_len > s->len_chanlist) {
 		DPRINTK("channel/gain list too long %d > %d\n",
-			user_cmd.chanlist_len, s->len_chanlist);
+			cmd.chanlist_len, s->len_chanlist);
 		ret = -EINVAL;
 		goto cleanup;
 	}
 
 	/* load channel/gain list */
-	if (user_cmd.chanlist) {
+	if (cmd.chanlist) {
 		chanlist =
-		    kmalloc(user_cmd.chanlist_len * sizeof(int), GFP_KERNEL);
+		    kmalloc(cmd.chanlist_len * sizeof(int), GFP_KERNEL);
 		if (!chanlist) {
 			DPRINTK("allocation failed\n");
 			ret = -ENOMEM;
 			goto cleanup;
 		}
 
-		if (copy_from_user(chanlist, user_cmd.chanlist,
-				   user_cmd.chanlist_len * sizeof(int))) {
+		if (copy_from_user(chanlist, user_chanlist,
+				   cmd.chanlist_len * sizeof(int))) {
 			DPRINTK("fault reading chanlist\n");
 			ret = -EFAULT;
 			goto cleanup;
 		}
 
 		/* make sure each element in channel/gain list is valid */
-		ret = comedi_check_chanlist(s, user_cmd.chanlist_len, chanlist);
+		ret = comedi_check_chanlist(s, cmd.chanlist_len, chanlist);
 		if (ret < 0) {
 			DPRINTK("bad chanlist\n");
 			goto cleanup;
 		}
 
-		user_cmd.chanlist = chanlist;
+		cmd.chanlist = chanlist;
 	}
 
-	ret = s->do_cmdtest(dev, s, &user_cmd);
+	ret = s->do_cmdtest(dev, s, &cmd);
 
 	/* restore chanlist pointer before copying back */
-	user_cmd.chanlist = chanlist_saver;
+	cmd.chanlist = (unsigned int __force *)user_chanlist;
 
-	if (copy_to_user(arg, &user_cmd, sizeof(struct comedi_cmd))) {
+	if (copy_to_user(arg, &cmd, sizeof(struct comedi_cmd))) {
 		DPRINTK("bad cmd address\n");
 		ret = -EFAULT;
 		goto cleanup;
@@ -1390,7 +1388,7 @@ static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg,
 
 	if (arg >= dev->n_subdevices)
 		return -EINVAL;
-	s = dev->subdevices + arg;
+	s = &dev->subdevices[arg];
 
 	spin_lock_irqsave(&s->spin_lock, flags);
 	if (s->busy || s->lock)
@@ -1433,7 +1431,7 @@ static int do_unlock_ioctl(struct comedi_device *dev, unsigned int arg,
 
 	if (arg >= dev->n_subdevices)
 		return -EINVAL;
-	s = dev->subdevices + arg;
+	s = &dev->subdevices[arg];
 
 	if (s->busy)
 		return -EBUSY;
@@ -1474,7 +1472,7 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg,
 
 	if (arg >= dev->n_subdevices)
 		return -EINVAL;
-	s = dev->subdevices + arg;
+	s = &dev->subdevices[arg];
 	if (s->async == NULL)
 		return -EINVAL;
 
@@ -1511,7 +1509,7 @@ static int do_poll_ioctl(struct comedi_device *dev, unsigned int arg,
 
 	if (arg >= dev->n_subdevices)
 		return -EINVAL;
-	s = dev->subdevices + arg;
+	s = &dev->subdevices[arg];
 
 	if (s->lock && s->lock != file)
 		return -EACCES;
@@ -2025,7 +2023,8 @@ done:
 /*
    This function restores a subdevice to an idle state.
  */
-void do_become_nonbusy(struct comedi_device *dev, struct comedi_subdevice *s)
+static void do_become_nonbusy(struct comedi_device *dev,
+			      struct comedi_subdevice *s)
 {
 	struct comedi_async *async = s->async;
 
@@ -2033,9 +2032,11 @@ void do_become_nonbusy(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (async) {
 		comedi_reset_async_buf(async);
 		async->inttrig = NULL;
+		kfree(async->cmd.chanlist);
+		async->cmd.chanlist = NULL;
 	} else {
-		printk(KERN_ERR
-		       "BUG: (?) do_become_nonbusy called with async=0\n");
+		dev_err(dev->class_dev,
+			"BUG: (?) do_become_nonbusy called with async=NULL\n");
 	}
 
 	s->busy = NULL;
@@ -2140,7 +2141,7 @@ static int comedi_close(struct inode *inode, struct file *file)
 
 	if (dev->subdevices) {
 		for (i = 0; i < dev->n_subdevices; i++) {
-			s = dev->subdevices + i;
+			s = &dev->subdevices[i];
 
 			if (s->busy == file)
 				do_cancel(dev, s);
@@ -2211,14 +2212,12 @@ static int __init comedi_init(void)
 	int i;
 	int retval;
 
-	printk(KERN_INFO "comedi: version " COMEDI_RELEASE
-	       " - http://www.comedi.org\n");
+	pr_info("comedi: version " COMEDI_RELEASE " - http://www.comedi.org\n");
 
 	if (comedi_num_legacy_minors < 0 ||
 	    comedi_num_legacy_minors > COMEDI_NUM_BOARD_MINORS) {
-		printk(KERN_ERR "comedi: error: invalid value for module "
-		       "parameter \"comedi_num_legacy_minors\".  Valid values "
-		       "are 0 through %i.\n", COMEDI_NUM_BOARD_MINORS);
+		pr_err("comedi: error: invalid value for module parameter \"comedi_num_legacy_minors\".  Valid values are 0 through %i.\n",
+		       COMEDI_NUM_BOARD_MINORS);
 		return -EINVAL;
 	}
 
@@ -2247,7 +2246,7 @@ static int __init comedi_init(void)
 	}
 	comedi_class = class_create(THIS_MODULE, "comedi");
 	if (IS_ERR(comedi_class)) {
-		printk(KERN_ERR "comedi: failed to create class");
+		pr_err("comedi: failed to create class\n");
 		cdev_del(&comedi_cdev);
 		unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
 					 COMEDI_NUM_MINORS);
@@ -2295,8 +2294,7 @@ module_exit(comedi_cleanup);
 
 void comedi_error(const struct comedi_device *dev, const char *s)
 {
-	printk(KERN_ERR "comedi%d: %s: %s\n", dev->minor,
-	       dev->driver->driver_name, s);
+	dev_err(dev->class_dev, "%s: %s\n", dev->driver->driver_name, s);
 }
 EXPORT_SYMBOL(comedi_error);
 
@@ -2364,7 +2362,7 @@ static int is_device_busy(struct comedi_device *dev)
 		return 0;
 
 	for (i = 0; i < dev->n_subdevices; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		if (s->busy)
 			return 1;
 		if (s->async && s->async->mmap_count)
@@ -2420,9 +2418,7 @@ int comedi_alloc_board_minor(struct device *hardware_device)
 		comedi_device_cleanup(info->device);
 		kfree(info->device);
 		kfree(info);
-		printk(KERN_ERR
-		       "comedi: error: "
-		       "ran out of minor numbers for board device files.\n");
+		pr_err("comedi: error: ran out of minor numbers for board device files.\n");
 		return -EBUSY;
 	}
 	info->device->minor = i;
@@ -2499,9 +2495,7 @@ int comedi_alloc_subdevice_minor(struct comedi_device *dev,
 	spin_unlock(&comedi_file_info_table_lock);
 	if (i == COMEDI_NUM_MINORS) {
 		kfree(info);
-		printk(KERN_ERR
-		       "comedi: error: "
-		       "ran out of minor numbers for board device files.\n");
+		pr_err("comedi: error: ran out of minor numbers for board device files.\n");
 		return -EBUSY;
 	}
 	s->minor = i;
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index f713783ef62..cb67a5cb9c8 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -46,7 +46,7 @@
 
 #define DPRINTK(format, args...)	do {		\
 	if (comedi_debug)				\
-		printk(KERN_DEBUG "comedi: " format , ## args);	\
+		pr_debug("comedi: " format, ## args);	\
 } while (0)
 
 #define COMEDI_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index c0fdb00783e..1db6bfdbf13 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -71,7 +71,7 @@ int comedi_alloc_subdevices(struct comedi_device *dev, int num_subdevices)
 	dev->n_subdevices = num_subdevices;
 
 	for (i = 0; i < num_subdevices; ++i) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		s->device = dev;
 		s->async_dma_dir = DMA_NONE;
 		spin_lock_init(&s->spin_lock);
@@ -88,7 +88,7 @@ static void cleanup_device(struct comedi_device *dev)
 
 	if (dev->subdevices) {
 		for (i = 0; i < dev->n_subdevices; i++) {
-			s = dev->subdevices + i;
+			s = &dev->subdevices[i];
 			comedi_free_subdevice_minor(s);
 			if (s->async) {
 				comedi_buf_alloc(dev, s, 0);
@@ -119,8 +119,8 @@ static void __comedi_device_detach(struct comedi_device *dev)
 	if (dev->driver)
 		dev->driver->detach(dev);
 	else
-		printk(KERN_WARNING
-		       "BUG: dev->driver=NULL in comedi_device_detach()\n");
+		dev_warn(dev->class_dev,
+			 "BUG: dev->driver=NULL in comedi_device_detach()\n");
 	cleanup_device(dev);
 }
 
@@ -142,8 +142,7 @@ static int comedi_device_postconfig(struct comedi_device *dev)
 		return ret;
 	}
 	if (!dev->board_name) {
-		printk(KERN_WARNING "BUG: dev->board_name=<%p>\n",
-		       dev->board_name);
+		dev_warn(dev->class_dev, "BUG: dev->board_name=NULL\n");
 		dev->board_name = "BUG";
 	}
 	smp_wmb();
@@ -160,15 +159,13 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EBUSY;
 
 	for (driv = comedi_drivers; driv; driv = driv->next) {
-		if (!try_module_get(driv->module)) {
-			printk(KERN_INFO "comedi: failed to increment module count, skipping\n");
+		if (!try_module_get(driv->module))
 			continue;
-		}
 		if (driv->num_names) {
 			dev->board_ptr = comedi_recognize(driv, it->board_name);
 			if (dev->board_ptr)
 				break;
-		} else if (strcmp(driv->driver_name, it->board_name))
+		} else if (strcmp(driv->driver_name, it->board_name) == 0)
 			break;
 		module_put(driv->module);
 	}
@@ -176,16 +173,21 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		/*  recognize has failed if we get here */
 		/*  report valid board names before returning error */
 		for (driv = comedi_drivers; driv; driv = driv->next) {
-			if (!try_module_get(driv->module)) {
-				printk(KERN_INFO
-				       "comedi: failed to increment module count\n");
+			if (!try_module_get(driv->module))
 				continue;
-			}
 			comedi_report_boards(driv);
 			module_put(driv->module);
 		}
 		return -EIO;
 	}
+	if (driv->attach == NULL) {
+		/* driver does not support manual configuration */
+		dev_warn(dev->class_dev,
+			 "driver '%s' does not support attach using comedi_config\n",
+			 driv->driver_name);
+		module_put(driv->module);
+		return -ENOSYS;
+	}
 	/* initialize dev->driver here so
 	 * comedi_error() can be called from attach */
 	dev->driver = driv;
@@ -225,8 +227,9 @@ int comedi_driver_unregister(struct comedi_driver *driver)
 		mutex_lock(&dev->mutex);
 		if (dev->attached && dev->driver == driver) {
 			if (dev->use_count)
-				printk(KERN_WARNING "BUG! detaching device with use_count=%d\n",
-						dev->use_count);
+				dev_warn(dev->class_dev,
+					 "BUG! detaching device with use_count=%d\n",
+					 dev->use_count);
 			comedi_device_detach(dev);
 		}
 		mutex_unlock(&dev->mutex);
@@ -255,7 +258,7 @@ static int postconfig(struct comedi_device *dev)
 	int ret;
 
 	for (i = 0; i < dev->n_subdevices; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 
 		if (s->type == COMEDI_SUBD_UNUSED)
 			continue;
@@ -273,8 +276,8 @@ static int postconfig(struct comedi_device *dev)
 			async =
 			    kzalloc(sizeof(struct comedi_async), GFP_KERNEL);
 			if (async == NULL) {
-				printk(KERN_INFO
-				       "failed to allocate async struct\n");
+				dev_warn(dev->class_dev,
+					 "failed to allocate async struct\n");
 				return -ENOMEM;
 			}
 			init_waitqueue_head(&async->wait_head);
@@ -290,7 +293,8 @@ static int postconfig(struct comedi_device *dev)
 			async->prealloc_buf = NULL;
 			async->prealloc_bufsz = 0;
 			if (comedi_buf_alloc(dev, s, buf_size) < 0) {
-				printk(KERN_INFO "Buffer allocation failed\n");
+				dev_warn(dev->class_dev,
+					 "Buffer allocation failed\n");
 				return -ENOMEM;
 			}
 			if (s->buf_change) {
@@ -370,17 +374,17 @@ static void comedi_report_boards(struct comedi_driver *driv)
 	unsigned int i;
 	const char *const *name_ptr;
 
-	printk(KERN_INFO "comedi: valid board names for %s driver are:\n",
-	       driv->driver_name);
+	pr_info("comedi: valid board names for %s driver are:\n",
+		driv->driver_name);
 
 	name_ptr = driv->board_name;
 	for (i = 0; i < driv->num_names; i++) {
-		printk(KERN_INFO " %s\n", *name_ptr);
+		pr_info(" %s\n", *name_ptr);
 		name_ptr = (const char **)((char *)name_ptr + driv->offset);
 	}
 
 	if (driv->num_names == 0)
-		printk(KERN_INFO " %s\n", driv->driver_name);
+		pr_info(" %s\n", driv->driver_name);
 }
 
 static int poll_invalid(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -411,7 +415,6 @@ static int insn_rw_emulate_bits(struct comedi_device *dev,
 	new_insn.insn = INSN_BITS;
 	new_insn.chanspec = base_bitfield_channel;
 	new_insn.n = 2;
-	new_insn.data = new_data;
 	new_insn.subdev = insn->subdev;
 
 	if (insn->insn == INSN_WRITE) {
@@ -584,9 +587,9 @@ static unsigned int comedi_buf_munge(struct comedi_async *async,
 
 		block_size = num_bytes - count;
 		if (block_size < 0) {
-			printk(KERN_WARNING
-			       "%s: %s: bug! block_size is negative\n",
-			       __FILE__, __func__);
+			dev_warn(s->device->class_dev,
+				 "%s: %s: bug! block_size is negative\n",
+				 __FILE__, __func__);
 			break;
 		}
 		if ((int)(async->munge_ptr + block_size -
@@ -667,7 +670,8 @@ unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
 {
 	if ((int)(async->buf_write_count + nbytes -
 		  async->buf_write_alloc_count) > 0) {
-		printk(KERN_INFO "comedi: attempted to write-free more bytes than have been write-allocated.\n");
+		dev_info(async->subdevice->device->class_dev,
+			 "attempted to write-free more bytes than have been write-allocated.\n");
 		nbytes = async->buf_write_alloc_count - async->buf_write_count;
 	}
 	async->buf_write_count += nbytes;
@@ -703,8 +707,8 @@ unsigned comedi_buf_read_free(struct comedi_async *async, unsigned int nbytes)
 	smp_mb();
 	if ((int)(async->buf_read_count + nbytes -
 		  async->buf_read_alloc_count) > 0) {
-		printk(KERN_INFO
-		       "comedi: attempted to read-free more bytes than have been read-allocated.\n");
+		dev_info(async->subdevice->device->class_dev,
+			 "attempted to read-free more bytes than have been read-allocated.\n");
 		nbytes = async->buf_read_alloc_count - async->buf_read_count;
 	}
 	async->buf_read_count += nbytes;
@@ -853,10 +857,9 @@ comedi_auto_config_helper(struct device *hardware_device,
 	mutex_lock(&comedi_dev->mutex);
 	if (comedi_dev->attached)
 		ret = -EBUSY;
-	else if (!try_module_get(driver->module)) {
-		printk(KERN_INFO "comedi: failed to increment module count\n");
+	else if (!try_module_get(driver->module))
 		ret = -EIO;
-	} else {
+	else {
 		/* set comedi_dev->driver here for attach wrapper */
 		comedi_dev->driver = driver;
 		ret = (*attach_wrapper)(comedi_dev, context);
@@ -884,14 +887,19 @@ static int comedi_auto_config_wrapper(struct comedi_device *dev, void *context)
 		 * has already been copied to it->board_name */
 		dev->board_ptr = comedi_recognize(driv, it->board_name);
 		if (dev->board_ptr == NULL) {
-			printk(KERN_WARNING
-			       "comedi: auto config failed to find board entry"
-			       " '%s' for driver '%s'\n", it->board_name,
-			       driv->driver_name);
+			dev_warn(dev->class_dev,
+				 "auto config failed to find board entry '%s' for driver '%s'\n",
+				 it->board_name, driv->driver_name);
 			comedi_report_boards(driv);
 			return -EINVAL;
 		}
 	}
+	if (!driv->attach) {
+		dev_warn(dev->class_dev,
+			 "BUG! driver '%s' using old-style auto config but has no attach handler\n",
+			 driv->driver_name);
+		return -EINVAL;
+	}
 	return driv->attach(dev, it);
 }
 
diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h
index 3eb45d46e05..429e0d60c0a 100644
--- a/drivers/staging/comedi/drivers/8253.h
+++ b/drivers/staging/comedi/drivers/8253.h
@@ -262,8 +262,10 @@ static inline int i8254_load(unsigned long base_address, unsigned int regshift,
 	return 0;
 }
 
-static inline int i8254_mm_load(void *base_address, unsigned int regshift,
-				unsigned int counter_number, unsigned int count,
+static inline int i8254_mm_load(void __iomem *base_address,
+				unsigned int regshift,
+				unsigned int counter_number,
+				unsigned int count,
 				unsigned int mode)
 {
 	unsigned int byte;
@@ -311,7 +313,8 @@ static inline int i8254_read(unsigned long base_address, unsigned int regshift,
 	return ret;
 }
 
-static inline int i8254_mm_read(void *base_address, unsigned int regshift,
+static inline int i8254_mm_read(void __iomem *base_address,
+				unsigned int regshift,
 				unsigned int counter_number)
 {
 	unsigned int byte;
@@ -348,7 +351,7 @@ static inline void i8254_write(unsigned long base_address,
 	outb(byte, base_address + (counter_number << regshift));
 }
 
-static inline void i8254_mm_write(void *base_address,
+static inline void i8254_mm_write(void __iomem *base_address,
 				  unsigned int regshift,
 				  unsigned int counter_number,
 				  unsigned int count)
@@ -390,7 +393,7 @@ static inline int i8254_set_mode(unsigned long base_address,
 	return 0;
 }
 
-static inline int i8254_mm_set_mode(void *base_address,
+static inline int i8254_mm_set_mode(void __iomem *base_address,
 				    unsigned int regshift,
 				    unsigned int counter_number,
 				    unsigned int mode)
@@ -419,7 +422,7 @@ static inline int i8254_status(unsigned long base_address,
 	return inb(base_address + (counter_number << regshift));
 }
 
-static inline int i8254_mm_status(void *base_address,
+static inline int i8254_mm_status(void __iomem *base_address,
 				  unsigned int regshift,
 				  unsigned int counter_number)
 {
diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c
index 4c9977b8a5a..a256622e2dd 100644
--- a/drivers/staging/comedi/drivers/8255.c
+++ b/drivers/staging/comedi/drivers/8255.c
@@ -82,6 +82,8 @@ I/O port base address can be found in the output of 'lspci -v'.
 
 #include <linux/ioport.h>
 #include <linux/slab.h>
+
+#include "comedi_fc.h"
 #include "8255.h"
 
 #define _8255_SIZE	4
@@ -229,39 +231,20 @@ static int subdev_8255_cmdtest(struct comedi_device *dev,
 			       struct comedi_cmd *cmd)
 {
 	int err = 0;
-	unsigned int tmp;
-
-	/* step 1 */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_FOLLOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2 */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -403,7 +386,7 @@ static int dev_8255_attach(struct comedi_device *dev,
 		return ret;
 
 	for (i = 0; i < dev->n_subdevices; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		iobase = it->options[i];
 
 		if (!request_region(iobase, _8255_SIZE, "8255")) {
@@ -429,7 +412,7 @@ static void dev_8255_detach(struct comedi_device *dev)
 	int i;
 
 	for (i = 0; i < dev->n_subdevices; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		if (s->type != COMEDI_SUBD_UNUSED) {
 			spriv = s->private;
 			release_region(spriv->iobase, _8255_SIZE);
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c
new file mode 100644
index 00000000000..7dff3c01dc2
--- /dev/null
+++ b/drivers/staging/comedi/drivers/8255_pci.c
@@ -0,0 +1,353 @@
+/*
+ * COMEDI driver for generic PCI based 8255 digital i/o boards
+ * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * Based on the tested adl_pci7296 driver written by:
+ *	Jon Grierson <jd@renko.co.uk>
+ * and the experimental cb_pcidio driver written by:
+ *	Yoshiya Matsuzaka
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+Driver: 8255_pci
+Description: Generic PCI based 8255 Digital I/O boards
+Devices: (ADLink) PCI-7224 [adl_pci-7224] - 24 channels
+	 (ADLink) PCI-7248 [adl_pci-7248] - 48 channels
+	 (ADLink) PCI-7296 [adl_pci-7296] - 96 channels
+	 (Measurement Computing) PCI-DIO24 [cb_pci-dio24] - 24 channels
+	 (Measurement Computing) PCI-DIO24H [cb_pci-dio24h] - 24 channels
+	 (Measurement Computing) PCI-DIO48H [cb_pci-dio48h] - 48 channels
+	 (Measurement Computing) PCI-DIO96H [cb_pci-dio96h] - 96 channels
+	 (National Instruments) PCI-DIO-96 [ni_pci-dio-96] - 96 channels
+	 (National Instruments) PCI-DIO-96B [ni_pci-dio-96b] - 96 channels
+	 (National Instruments) PXI-6508 [ni_pxi-6508] - 96 channels
+	 (National Instruments) PCI-6503 [ni_pci-6503] - 24 channels
+	 (National Instruments) PCI-6503B [ni_pci-6503b] - 24 channels
+	 (National Instruments) PCI-6503X [ni_pci-6503x] - 24 channels
+	 (National Instruments) PXI-6503 [ni_pxi-6503] - 24 channels
+Author: H Hartley Sweeten <hsweeten@visionengravers.com>
+Updated: Wed, 12 Sep 2012 11:52:01 -0700
+Status: untested
+
+Some of these boards also have an 8254 programmable timer/counter
+chip. This chip is not currently supported by this driver.
+
+Interrupt support for these boards is also not currently supported.
+
+Configuration Options: not applicable, uses PCI auto config
+*/
+
+#include "../comedidev.h"
+
+#include "8255.h"
+
+/*
+ * PCI Device ID's supported by this driver
+ */
+#define PCI_DEVICE_ID_ADLINK_PCI7224	0x7224
+#define PCI_DEVICE_ID_ADLINK_PCI7248	0x7248
+#define PCI_DEVICE_ID_ADLINK_PCI7296	0x7296
+
+/* ComputerBoards is now known as Measurement Computing */
+#define PCI_VENDOR_ID_CB		0x1307
+
+#define PCI_DEVICE_ID_CB_PCIDIO48H	0x000b
+#define PCI_DEVICE_ID_CB_PCIDIO24H	0x0014
+#define PCI_DEVICE_ID_CB_PCIDIO96H	0x0017
+#define PCI_DEVICE_ID_CB_PCIDIO24	0x0028
+
+#define PCI_DEVICE_ID_NI_PCIDIO96	0x0160
+#define PCI_DEVICE_ID_NI_PCI6503	0x0400
+#define PCI_DEVICE_ID_NI_PCI6503B	0x1250
+#define PCI_DEVICE_ID_NI_PXI6508	0x13c0
+#define PCI_DEVICE_ID_NI_PCIDIO96B	0x1630
+#define PCI_DEVICE_ID_NI_PCI6503X	0x17d0
+#define PCI_DEVICE_ID_NI_PXI_6503	0x1800
+
+struct pci_8255_boardinfo {
+	const char *name;
+	unsigned short vendor;
+	unsigned short device;
+	int dio_badr;
+	int is_mmio;
+	int n_8255;
+};
+
+static const struct pci_8255_boardinfo pci_8255_boards[] = {
+	{
+		.name		= "adl_pci-7224",
+		.vendor		= PCI_VENDOR_ID_ADLINK,
+		.device		= PCI_DEVICE_ID_ADLINK_PCI7224,
+		.dio_badr	= 2,
+		.n_8255		= 1,
+	}, {
+		.name		= "adl_pci-7248",
+		.vendor		= PCI_VENDOR_ID_ADLINK,
+		.device		= PCI_DEVICE_ID_ADLINK_PCI7248,
+		.dio_badr	= 2,
+		.n_8255		= 2,
+	}, {
+		.name		= "adl_pci-7296",
+		.vendor		= PCI_VENDOR_ID_ADLINK,
+		.device		= PCI_DEVICE_ID_ADLINK_PCI7296,
+		.dio_badr	= 2,
+		.n_8255		= 4,
+	}, {
+		.name		= "cb_pci-dio24",
+		.vendor		= PCI_VENDOR_ID_CB,
+		.device		= PCI_DEVICE_ID_CB_PCIDIO24,
+		.dio_badr	= 2,
+		.n_8255		= 1,
+	}, {
+		.name		= "cb_pci-dio24h",
+		.vendor		= PCI_VENDOR_ID_CB,
+		.device		= PCI_DEVICE_ID_CB_PCIDIO24H,
+		.dio_badr	= 2,
+		.n_8255		= 1,
+	}, {
+		.name		= "cb_pci-dio48h",
+		.vendor		= PCI_VENDOR_ID_CB,
+		.device		= PCI_DEVICE_ID_CB_PCIDIO48H,
+		.dio_badr	= 1,
+		.n_8255		= 2,
+	}, {
+		.name		= "cb_pci-dio96h",
+		.vendor		= PCI_VENDOR_ID_CB,
+		.device		= PCI_DEVICE_ID_CB_PCIDIO96H,
+		.dio_badr	= 2,
+		.n_8255		= 4,
+	}, {
+		.name		= "ni_pci-dio-96",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCIDIO96,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 4,
+	}, {
+		.name		= "ni_pci-dio-96b",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCIDIO96B,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 4,
+	}, {
+		.name		= "ni_pxi-6508",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI6508,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 4,
+	}, {
+		.name		= "ni_pci-6503",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI6503,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 1,
+	}, {
+		.name		= "ni_pci-6503b",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI6503B,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 1,
+	}, {
+		.name		= "ni_pci-6503x",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI6503X,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 1,
+	}, {
+		.name		= "ni_pxi-6503",
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI_6503,
+		.dio_badr	= 1,
+		.is_mmio	= 1,
+		.n_8255		= 1,
+	},
+};
+
+struct pci_8255_private {
+	void __iomem *mmio_base;
+};
+
+static int pci_8255_mmio(int dir, int port, int data, unsigned long iobase)
+{
+	void __iomem *mmio_base = (void __iomem *)iobase;
+
+	if (dir) {
+		writeb(data, mmio_base + port);
+		return 0;
+	} else {
+		return readb(mmio_base  + port);
+	}
+}
+
+static const void *pci_8255_find_boardinfo(struct comedi_device *dev,
+					      struct pci_dev *pcidev)
+{
+	const struct pci_8255_boardinfo *board;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pci_8255_boards); i++) {
+		board = &pci_8255_boards[i];
+		if (pcidev->vendor == board->vendor &&
+		    pcidev->device == board->device)
+			return board;
+	}
+	return NULL;
+}
+
+static int pci_8255_attach_pci(struct comedi_device *dev,
+			       struct pci_dev *pcidev)
+{
+	const struct pci_8255_boardinfo *board;
+	struct pci_8255_private *devpriv;
+	struct comedi_subdevice *s;
+	resource_size_t iobase;
+	unsigned long len;
+	int ret;
+	int i;
+
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	board = pci_8255_find_boardinfo(dev, pcidev);
+	if (!board)
+		return -ENODEV;
+	dev->board_ptr = board;
+	dev->board_name = board->name;
+
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret < 0)
+		return ret;
+	devpriv = dev->private;
+
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	iobase = pci_resource_start(pcidev, board->dio_badr);
+	len = pci_resource_len(pcidev, board->dio_badr);
+
+	if (board->is_mmio) {
+		devpriv->mmio_base = ioremap(iobase, len);
+		if (!devpriv->mmio_base)
+			return -ENOMEM;
+	}
+	dev->iobase = iobase;
+
+	/*
+	 * One, two, or four subdevices are setup by this driver depending
+	 * on the number of channels provided by the board. Each subdevice
+	 * has 24 channels supported by the 8255 module.
+	 */
+	ret = comedi_alloc_subdevices(dev, board->n_8255);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < board->n_8255; i++) {
+		s = &dev->subdevices[i];
+		if (board->is_mmio) {
+			iobase = (unsigned long)(devpriv->mmio_base + (i * 4));
+			ret = subdev_8255_init(dev, s, pci_8255_mmio, iobase);
+		} else {
+			iobase = dev->iobase + (i * 4);
+			ret = subdev_8255_init(dev, s, NULL, iobase);
+		}
+		if (ret)
+			return ret;
+	}
+
+	dev_info(dev->class_dev, "%s attached (%d digital i/o channels)\n",
+		dev->board_name, board->n_8255 * 24);
+
+	return 0;
+}
+
+static void pci_8255_detach(struct comedi_device *dev)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	const struct pci_8255_boardinfo *board = comedi_board(dev);
+	struct pci_8255_private *devpriv = dev->private;
+	struct comedi_subdevice *s;
+	int i;
+
+	if (dev->subdevices) {
+		for (i = 0; i < board->n_8255; i++) {
+			s = &dev->subdevices[i];
+			subdev_8255_cleanup(dev, s);
+		}
+	}
+	if (pcidev) {
+		if (devpriv->mmio_base)
+			iounmap(devpriv->mmio_base);
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
+	}
+}
+
+static struct comedi_driver pci_8255_driver = {
+	.driver_name	= "8255_pci",
+	.module		= THIS_MODULE,
+	.attach_pci	= pci_8255_attach_pci,
+	.detach		= pci_8255_detach,
+};
+
+static int __devinit pci_8255_pci_probe(struct pci_dev *dev,
+					const struct pci_device_id *ent)
+{
+	return comedi_pci_auto_config(dev, &pci_8255_driver);
+}
+
+static void __devexit pci_8255_pci_remove(struct pci_dev *dev)
+{
+	comedi_pci_auto_unconfig(dev);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(pci_8255_pci_table) = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_ADLINK_PCI7224) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_ADLINK_PCI7248) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_ADLINK_PCI7296) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CB, PCI_DEVICE_ID_CB_PCIDIO24) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CB, PCI_DEVICE_ID_CB_PCIDIO24H) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CB, PCI_DEVICE_ID_CB_PCIDIO48H) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CB, PCI_DEVICE_ID_CB_PCIDIO96H) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCIDIO96) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCIDIO96B) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI6508) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI6503) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI6503B) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI6503X) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI_6503) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, pci_8255_pci_table);
+
+static struct pci_driver pci_8255_pci_driver = {
+	.name		= "8255_pci",
+	.id_table	= pci_8255_pci_table,
+	.probe		= pci_8255_pci_probe,
+	.remove		= __devexit_p(pci_8255_pci_remove),
+};
+module_comedi_pci_driver(pci_8255_driver, pci_8255_pci_driver);
+
+MODULE_DESCRIPTION("COMEDI - Generic PCI based 8255 Digital I/O boards");
+MODULE_AUTHOR("Comedi http://www.comedi.org");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/Makefile b/drivers/staging/comedi/drivers/Makefile
index 57b19e44d86..a2787c0ca32 100644
--- a/drivers/staging/comedi/drivers/Makefile
+++ b/drivers/staging/comedi/drivers/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_COMEDI_MULTIQ3)		+= multiq3.o
 obj-$(CONFIG_COMEDI_POC)		+= poc.o
 
 # Comedi PCI drivers
+obj-$(CONFIG_COMEDI_8255_PCI)		+= 8255_pci.o
 obj-$(CONFIG_COMEDI_ADDI_APCI_035)	+= addi_apci_035.o
 obj-$(CONFIG_COMEDI_ADDI_APCI_1032)	+= addi_apci_1032.o
 obj-$(CONFIG_COMEDI_ADDI_APCI_1500)	+= addi_apci_1500.o
@@ -69,9 +70,7 @@ obj-$(CONFIG_COMEDI_ADDI_APCI_3120)	+= addi_apci_3120.o
 obj-$(CONFIG_COMEDI_ADDI_APCI_3501)	+= addi_apci_3501.o
 obj-$(CONFIG_COMEDI_ADDI_APCI_3XXX)	+= addi_apci_3xxx.o
 obj-$(CONFIG_COMEDI_ADL_PCI6208)	+= adl_pci6208.o
-obj-$(CONFIG_COMEDI_ADL_PCI7230)	+= adl_pci7230.o
-obj-$(CONFIG_COMEDI_ADL_PCI7296)	+= adl_pci7296.o
-obj-$(CONFIG_COMEDI_ADL_PCI7432)	+= adl_pci7432.o
+obj-$(CONFIG_COMEDI_ADL_PCI7X3X)	+= adl_pci7x3x.o
 obj-$(CONFIG_COMEDI_ADL_PCI8164)	+= adl_pci8164.o
 obj-$(CONFIG_COMEDI_ADL_PCI9111)	+= adl_pci9111.o
 obj-$(CONFIG_COMEDI_ADL_PCI9118)	+= adl_pci9118.o
@@ -96,7 +95,6 @@ obj-$(CONFIG_COMEDI_KE_COUNTER)		+= ke_counter.o
 obj-$(CONFIG_COMEDI_CB_PCIDAS64)	+= cb_pcidas64.o
 obj-$(CONFIG_COMEDI_CB_PCIDAS)		+= cb_pcidas.o
 obj-$(CONFIG_COMEDI_CB_PCIDDA)		+= cb_pcidda.o
-obj-$(CONFIG_COMEDI_CB_PCIDIO)		+= cb_pcidio.o
 obj-$(CONFIG_COMEDI_CB_PCIMDAS)		+= cb_pcimdas.o
 obj-$(CONFIG_COMEDI_CB_PCIMDDA)		+= cb_pcimdda.o
 obj-$(CONFIG_COMEDI_ME4000)		+= me4000.o
diff --git a/drivers/staging/comedi/drivers/acl7225b.c b/drivers/staging/comedi/drivers/acl7225b.c
index ddba5db1e2e..28c7fd3a96b 100644
--- a/drivers/staging/comedi/drivers/acl7225b.c
+++ b/drivers/staging/comedi/drivers/acl7225b.c
@@ -81,7 +81,7 @@ static int acl7225b_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* Relays outputs */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -91,7 +91,7 @@ static int acl7225b_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)ACL7225_RIO_LO;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* Relays status */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -101,7 +101,7 @@ static int acl7225b_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)ACL7225_RIO_LO;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* Isolated digital inputs */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c b/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c
deleted file mode 100644
index b973095146f..00000000000
--- a/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/**
-@verbatim
-
-Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
-
-	ADDI-DATA GmbH
-	Dieselstrasse 3
-	D-77833 Ottersweier
-	Tel: +19(0)7223/9493-0
-	Fax: +49(0)7223/9493-92
-	http://www.addi-data.com
-	info@addi-data.com
-
-This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-You should also find the complete GPL in the COPYING file accompanying this source code.
-
-@endverbatim
-*/
-/*
-  +-----------------------------------------------------------------------+
-  | (C) ADDI-DATA GmbH          Dieselstraße 3       D-77833 Ottersweier  |
-  +-----------------------------------------------------------------------+
-  | Tel : +49 (0) 7223/9493-0     | email    : info@addi-data.com         |
-  | Fax : +49 (0) 7223/9493-92    | Internet : http://www.addi-data.com   |
-  +-------------------------------+---------------------------------------+
-  | Project : ADDI HEADER READ WRITER |     Compiler   : Visual C++       |
-  | Module name : S5920.cpp           |     Version    : 6.0              |
-  +-------------------------------+---------------------------------------+
-  | Author : E. LIBS                      Date : 02/05/2002               |
-  +-----------------------------------------------------------------------+
-  | Description   : DLL with the S5920 PCI Controller functions           |
-  +-----------------------------------------------------------------------+
-  |                             UPDATE'S                                  |
-  +-----------------------------------------------------------------------+
-  |   Date   |   Author  |          Description of updates                |
-  +----------+-----------+------------------------------------------------+
-  | 28/08/02 | LIBS Eric | Add return codes each time a function of the   |
-  |          |           | Addi Library is called                         |
-  +-----------------------------------------------------------------------+
-  | 31/07/03 | KRAUTH J. | Changes for the MSX-Box                        |
-  +-----------------------------------------------------------------------+
-*/
-
-#include "addi_amcc_S5920.h"
-
-/*+----------------------------------------------------------------------------+*/
-/*| Function   Name   : int i_AddiHeaderRW_ReadEeprom                          |*/
-/*|                               (int    i_NbOfWordsToRead,                   |*/
-/*|                                unsigned int dw_PCIBoardEepromAddress,             |*/
-/*|                                unsigned short   w_EepromStartAddress,                |*/
-/*|                                unsigned short * pw_DataRead)                          |*/
-/*+----------------------------------------------------------------------------+*/
-/*| Task              : Read word from the 5920 eeprom.                        |*/
-/*+----------------------------------------------------------------------------+*/
-/*| Input Parameters  : int    i_NbOfWordsToRead : Nbr. of word to read        |*/
-/*|                     unsigned int dw_PCIBoardEepromAddress : Address of the eeprom |*/
-/*|                     unsigned short   w_EepromStartAddress : Eeprom start address     |*/
-/*+----------------------------------------------------------------------------+*/
-/*| Output Parameters : unsigned short * pw_DataRead : Read data                          |*/
-/*+----------------------------------------------------------------------------+*/
-/*| Return Value      : -                                                      |*/
-/*+----------------------------------------------------------------------------+*/
-
-int i_AddiHeaderRW_ReadEeprom(int i_NbOfWordsToRead,
-	unsigned int dw_PCIBoardEepromAddress,
-	unsigned short w_EepromStartAddress, unsigned short *pw_DataRead)
-{
-	unsigned int dw_eeprom_busy = 0;
-	int i_Counter = 0;
-	int i_WordCounter;
-	int i;
-	unsigned char pb_ReadByte[1];
-	unsigned char b_ReadLowByte = 0;
-	unsigned char b_ReadHighByte = 0;
-	unsigned char b_SelectedAddressLow = 0;
-	unsigned char b_SelectedAddressHigh = 0;
-	unsigned short w_ReadWord = 0;
-
-	for (i_WordCounter = 0; i_WordCounter < i_NbOfWordsToRead;
-		i_WordCounter++) {
-		do {
-			dw_eeprom_busy =
-				inl(dw_PCIBoardEepromAddress +
-				AMCC_OP_REG_MCSR);
-			dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-		} while (dw_eeprom_busy == EEPROM_BUSY);
-
-		for (i_Counter = 0; i_Counter < 2; i_Counter++) {
-			b_SelectedAddressLow = (w_EepromStartAddress + i_Counter) % 256;	/* Read the low 8 bit part */
-			b_SelectedAddressHigh = (w_EepromStartAddress + i_Counter) / 256;	/* Read the high 8 bit part */
-
-			/* Select the load low address mode */
-			outb(NVCMD_LOAD_LOW,
-				dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
-				3);
-
-			/* Wait on busy */
-			do {
-				dw_eeprom_busy =
-					inl(dw_PCIBoardEepromAddress +
-					AMCC_OP_REG_MCSR);
-				dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-			} while (dw_eeprom_busy == EEPROM_BUSY);
-
-			/* Load the low address */
-			outb(b_SelectedAddressLow,
-				dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
-				2);
-
-			/* Wait on busy */
-			do {
-				dw_eeprom_busy =
-					inl(dw_PCIBoardEepromAddress +
-					AMCC_OP_REG_MCSR);
-				dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-			} while (dw_eeprom_busy == EEPROM_BUSY);
-
-			/* Select the load high address mode */
-			outb(NVCMD_LOAD_HIGH,
-				dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
-				3);
-
-			/* Wait on busy */
-			do {
-				dw_eeprom_busy =
-					inl(dw_PCIBoardEepromAddress +
-					AMCC_OP_REG_MCSR);
-				dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-			} while (dw_eeprom_busy == EEPROM_BUSY);
-
-			/* Load the high address */
-			outb(b_SelectedAddressHigh,
-				dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
-				2);
-
-			/* Wait on busy */
-			do {
-				dw_eeprom_busy =
-					inl(dw_PCIBoardEepromAddress +
-					AMCC_OP_REG_MCSR);
-				dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-			} while (dw_eeprom_busy == EEPROM_BUSY);
-
-			/* Select the READ mode */
-			outb(NVCMD_BEGIN_READ,
-				dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
-				3);
-
-			/* Wait on busy */
-			do {
-				dw_eeprom_busy =
-					inl(dw_PCIBoardEepromAddress +
-					AMCC_OP_REG_MCSR);
-				dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-			} while (dw_eeprom_busy == EEPROM_BUSY);
-
-			/* Read data into the EEPROM */
-			*pb_ReadByte =
-				inb(dw_PCIBoardEepromAddress +
-				AMCC_OP_REG_MCSR + 2);
-
-			/* Wait on busy */
-			do {
-				dw_eeprom_busy =
-					inl(dw_PCIBoardEepromAddress +
-					AMCC_OP_REG_MCSR);
-				dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
-			} while (dw_eeprom_busy == EEPROM_BUSY);
-
-			/* Select the upper address part */
-			if (i_Counter == 0)
-				b_ReadLowByte = pb_ReadByte[0];
-			else
-				b_ReadHighByte = pb_ReadByte[0];
-
-			/* Sleep */
-			msleep(1);
-
-		}
-		w_ReadWord =
-			(b_ReadLowByte | (((unsigned short)b_ReadHighByte) *
-				256));
-
-		pw_DataRead[i_WordCounter] = w_ReadWord;
-
-		w_EepromStartAddress += 2;	/*  to read the next word */
-
-	}			/*  for (...) i_NbOfWordsToRead */
-	return 0;
-}
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.h b/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.h
deleted file mode 100644
index 9afdb1357aa..00000000000
--- a/drivers/staging/comedi/drivers/addi-data/addi_amcc_S5920.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- *  Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#define AMCC_OP_REG_MCSR	0x3c
-#define EEPROM_BUSY		0x80000000
-#define NVCMD_LOAD_LOW		(0x4 << 5)	/* nvRam load low command */
-#define NVCMD_LOAD_HIGH		(0x5 << 5)	/* nvRam load high command */
-#define NVCMD_BEGIN_READ	(0x7 << 5)	/* nvRam begin read command */
-#define NVCMD_BEGIN_WRITE	(0x6 << 5)	/* EEPROM begin write command */
-
-int i_AddiHeaderRW_ReadEeprom(int i_NbOfWordsToRead,
-			      unsigned int dw_PCIBoardEepromAddress,
-			      unsigned short w_EepromStartAddress, unsigned short *pw_DataRead);
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.c b/drivers/staging/comedi/drivers/addi-data/addi_common.c
index a3d4ed25fb0..99a96bd9671 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.c
@@ -1669,7 +1669,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			return ret;
 
 		/*  Allocate and Initialise AI Subdevice Structures */
-		s = dev->subdevices + 0;
+		s = &dev->subdevices[0];
 		if ((devpriv->s_EeParameters.i_NbrAiChannel)
 			|| (this_board->i_NbrAiChannelDiff)) {
 			dev->read_subdev = s;
@@ -1705,7 +1705,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 
 		/*  Allocate and Initialise AO Subdevice Structures */
-		s = dev->subdevices + 1;
+		s = &dev->subdevices[1];
 		if (devpriv->s_EeParameters.i_NbrAoChannel) {
 			s->type = COMEDI_SUBD_AO;
 			s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
@@ -1720,7 +1720,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			s->type = COMEDI_SUBD_UNUSED;
 		}
 		/*  Allocate and Initialise DI Subdevice Structures */
-		s = dev->subdevices + 2;
+		s = &dev->subdevices[2];
 		if (devpriv->s_EeParameters.i_NbrDiChannel) {
 			s->type = COMEDI_SUBD_DI;
 			s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
@@ -1738,7 +1738,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			s->type = COMEDI_SUBD_UNUSED;
 		}
 		/*  Allocate and Initialise DO Subdevice Structures */
-		s = dev->subdevices + 3;
+		s = &dev->subdevices[3];
 		if (devpriv->s_EeParameters.i_NbrDoChannel) {
 			s->type = COMEDI_SUBD_DO;
 			s->subdev_flags =
@@ -1760,7 +1760,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 
 		/*  Allocate and Initialise Timer Subdevice Structures */
-		s = dev->subdevices + 4;
+		s = &dev->subdevices[4];
 		if (devpriv->s_EeParameters.i_Timer) {
 			s->type = COMEDI_SUBD_TIMER;
 			s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
@@ -1778,7 +1778,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 
 		/*  Allocate and Initialise TTL */
-		s = dev->subdevices + 5;
+		s = &dev->subdevices[5];
 		if (this_board->i_NbrTTLChannel) {
 			s->type = COMEDI_SUBD_TTLIO;
 			s->subdev_flags =
@@ -1797,7 +1797,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 
 		/* EEPROM */
-		s = dev->subdevices + 6;
+		s = &dev->subdevices[6];
 		if (this_board->i_PCIEeprom) {
 			s->type = COMEDI_SUBD_MEMORY;
 			s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
diff --git a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
deleted file mode 100644
index c26c28c31b9..00000000000
--- a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
+++ /dev/null
@@ -1,453 +0,0 @@
-/*
-	Modified by umesh on 16th may 2001
-	Modified by sarath on 22nd may 2001
-*/
-
-/*
-    comedi/drivers/amcc_s5933_v_58.h
-
-    Stuff for AMCC S5933 PCI Controller
-
-    Author: Michal Dobes <majkl@tesnet.cz>
-
-    Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver
-    made by Andrea Cisternino  <acister@pcape1.pi.infn.it>
-    and as result of espionage from MITE code made by David A. Schleef.
-    Thanks to AMCC for their on-line documentation and bus master DMA
-    example.
-*/
-
-#ifndef _AMCC_S5933_H_
-#define _AMCC_S5933_H_
-
-#include <linux/pci.h>
-#include "../../comedidev.h"
-
-/***********Added by sarath for compatibility with APCI3120
-
-*************************/
-
-#define FIFO_ADVANCE_ON_BYTE_2     0x20000000	/*  written on base0 */
-
-#define AMWEN_ENABLE                     0x02	/*  added for step 6 dma written on base2 */
-#define A2P_FIFO_WRITE_ENABLE            0x01
-
-#define AGCSTS_TC_ENABLE		   0x10000000	/*  Added for transfer count enable bit */
-
-/* ADDON RELATED ADDITIONS */
-/* Constant */
-#define     APCI3120_ENABLE_TRANSFER_ADD_ON_LOW       0x00
-#define     APCI3120_ENABLE_TRANSFER_ADD_ON_HIGH      0x1200
-#define     APCI3120_A2P_FIFO_MANAGEMENT              0x04000400L
-#define     APCI3120_AMWEN_ENABLE                     0x02
-#define     APCI3120_A2P_FIFO_WRITE_ENABLE            0x01
-#define     APCI3120_FIFO_ADVANCE_ON_BYTE_2           0x20000000L
-#define     APCI3120_ENABLE_WRITE_TC_INT              0x00004000L
-#define     APCI3120_CLEAR_WRITE_TC_INT               0x00040000L
-#define     APCI3120_DISABLE_AMWEN_AND_A2P_FIFO_WRITE 0x0
-#define     APCI3120_DISABLE_BUS_MASTER_ADD_ON        0x0
-#define     APCI3120_DISABLE_BUS_MASTER_PCI           0x0
-
- /*  ADD_ON ::: this needed since apci supports 16 bit interface to add on */
-#define     APCI3120_ADD_ON_AGCSTS_LOW       0x3C
-#define     APCI3120_ADD_ON_AGCSTS_HIGH      APCI3120_ADD_ON_AGCSTS_LOW + 2
-#define     APCI3120_ADD_ON_MWAR_LOW         0x24
-#define     APCI3120_ADD_ON_MWAR_HIGH        APCI3120_ADD_ON_MWAR_LOW + 2
-#define     APCI3120_ADD_ON_MWTC_LOW         0x058
-#define     APCI3120_ADD_ON_MWTC_HIGH        APCI3120_ADD_ON_MWTC_LOW + 2
-
-/* AMCC */
-#define     APCI3120_AMCC_OP_MCSR            0x3C
-#define     APCI3120_AMCC_OP_REG_INTCSR      0x38
-
-/*******from here all upward definitions are added by sarath */
-
-/****************************************************************************/
-/* AMCC Operation Register Offsets - PCI                                    */
-/****************************************************************************/
-
-#define AMCC_OP_REG_OMB1         0x00
-#define AMCC_OP_REG_OMB2         0x04
-#define AMCC_OP_REG_OMB3         0x08
-#define AMCC_OP_REG_OMB4         0x0c
-#define AMCC_OP_REG_IMB1         0x10
-#define AMCC_OP_REG_IMB2         0x14
-#define AMCC_OP_REG_IMB3         0x18
-#define AMCC_OP_REG_IMB4         0x1c
-#define AMCC_OP_REG_FIFO         0x20
-#define AMCC_OP_REG_MWAR         0x24
-#define AMCC_OP_REG_MWTC         0x28
-#define AMCC_OP_REG_MRAR         0x2c
-#define AMCC_OP_REG_MRTC         0x30
-#define AMCC_OP_REG_MBEF         0x34
-#define AMCC_OP_REG_INTCSR       0x38
-#define  AMCC_OP_REG_INTCSR_SRC  (AMCC_OP_REG_INTCSR + 2)	/* int source */
-#define  AMCC_OP_REG_INTCSR_FEC  (AMCC_OP_REG_INTCSR + 3)	/* FIFO ctrl */
-#define AMCC_OP_REG_MCSR         0x3c
-#define  AMCC_OP_REG_MCSR_NVDATA (AMCC_OP_REG_MCSR + 2)	/* Data in byte 2 */
-#define  AMCC_OP_REG_MCSR_NVCMD  (AMCC_OP_REG_MCSR + 3)	/* Command in byte 3 */
-
-#define AMCC_FIFO_DEPTH_DWORD	8
-#define AMCC_FIFO_DEPTH_BYTES	(8 * sizeof (u32))
-
-/****************************************************************************/
-/* AMCC Operation Registers Size - PCI                                      */
-/****************************************************************************/
-
-#define AMCC_OP_REG_SIZE	 64	/* in bytes */
-
-/****************************************************************************/
-/* AMCC Operation Register Offsets - Add-on                                 */
-/****************************************************************************/
-
-#define AMCC_OP_REG_AIMB1         0x00
-#define AMCC_OP_REG_AIMB2         0x04
-#define AMCC_OP_REG_AIMB3         0x08
-#define AMCC_OP_REG_AIMB4         0x0c
-#define AMCC_OP_REG_AOMB1         0x10
-#define AMCC_OP_REG_AOMB2         0x14
-#define AMCC_OP_REG_AOMB3         0x18
-#define AMCC_OP_REG_AOMB4         0x1c
-#define AMCC_OP_REG_AFIFO         0x20
-#define AMCC_OP_REG_AMWAR         0x24
-#define AMCC_OP_REG_APTA          0x28
-#define AMCC_OP_REG_APTD          0x2c
-#define AMCC_OP_REG_AMRAR         0x30
-#define AMCC_OP_REG_AMBEF         0x34
-#define AMCC_OP_REG_AINT          0x38
-#define AMCC_OP_REG_AGCSTS        0x3c
-#define AMCC_OP_REG_AMWTC         0x58
-#define AMCC_OP_REG_AMRTC         0x5c
-
-/****************************************************************************/
-/* AMCC - Add-on General Control/Status Register                            */
-/****************************************************************************/
-
-#define AGCSTS_CONTROL_MASK	0xfffff000
-#define  AGCSTS_NV_ACC_MASK	0xe0000000
-#define  AGCSTS_RESET_MASK	0x0e000000
-#define  AGCSTS_NV_DA_MASK	0x00ff0000
-#define  AGCSTS_BIST_MASK	0x0000f000
-#define AGCSTS_STATUS_MASK	0x000000ff
-#define  AGCSTS_TCZERO_MASK	0x000000c0
-#define  AGCSTS_FIFO_ST_MASK	0x0000003f
-
-#define AGCSTS_RESET_MBFLAGS	0x08000000
-#define AGCSTS_RESET_P2A_FIFO	0x04000000
-#define AGCSTS_RESET_A2P_FIFO	0x02000000
-#define AGCSTS_RESET_FIFOS	(AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO)
-
-#define AGCSTS_A2P_TCOUNT	0x00000080
-#define AGCSTS_P2A_TCOUNT	0x00000040
-
-#define AGCSTS_FS_P2A_EMPTY	0x00000020
-#define AGCSTS_FS_P2A_HALF	0x00000010
-#define AGCSTS_FS_P2A_FULL	0x00000008
-
-#define AGCSTS_FS_A2P_EMPTY	0x00000004
-#define AGCSTS_FS_A2P_HALF	0x00000002
-#define AGCSTS_FS_A2P_FULL	0x00000001
-
-/****************************************************************************/
-/* AMCC - Add-on Interrupt Control/Status Register                            */
-/****************************************************************************/
-
-#define AINT_INT_MASK		0x00ff0000
-#define AINT_SEL_MASK		0x0000ffff
-#define  AINT_IS_ENSEL_MASK	0x00001f1f
-
-#define AINT_INT_ASSERTED	0x00800000
-#define AINT_BM_ERROR		0x00200000
-#define AINT_BIST_INT		0x00100000
-
-#define AINT_RT_COMPLETE	0x00080000
-#define AINT_WT_COMPLETE	0x00040000
-
-#define AINT_OUT_MB_INT		0x00020000
-#define AINT_IN_MB_INT		0x00010000
-
-#define AINT_READ_COMPL		0x00008000
-#define AINT_WRITE_COMPL	0x00004000
-
-#define AINT_OMB_ENABLE 	0x00001000
-#define AINT_OMB_SELECT 	0x00000c00
-#define AINT_OMB_BYTE		0x00000300
-
-#define AINT_IMB_ENABLE 	0x00000010
-#define AINT_IMB_SELECT 	0x0000000c
-#define AINT_IMB_BYTE		0x00000003
-
-/* Enable Bus Mastering */
-#define EN_A2P_TRANSFERS	0x00000400
-/* FIFO Flag Reset */
-#define RESET_A2P_FLAGS		0x04000000L
-/* FIFO Relative Priority */
-#define A2P_HI_PRIORITY		0x00000100L
-/* Identify Interrupt Sources */
-#define ANY_S593X_INT		0x00800000L
-#define READ_TC_INT		0x00080000L
-#define WRITE_TC_INT		0x00040000L
-#define IN_MB_INT		0x00020000L
-#define MASTER_ABORT_INT	0x00100000L
-#define TARGET_ABORT_INT	0x00200000L
-#define BUS_MASTER_INT		0x00200000L
-
-/****************************************************************************/
-
-struct pcilst_struct {
-	struct pcilst_struct *next;
-	int used;
-	struct pci_dev *pcidev;
-	unsigned short vendor;
-	unsigned short device;
-	unsigned int master;
-	unsigned char pci_bus;
-	unsigned char pci_slot;
-	unsigned char pci_func;
-	unsigned int io_addr[5];
-	unsigned int irq;
-};
-
-struct pcilst_struct *amcc_devices;	/*  ptr to root list of all amcc devices */
-
-/****************************************************************************/
-
-void v_pci_card_list_init(unsigned short pci_vendor, char display);
-void v_pci_card_list_cleanup(unsigned short pci_vendor);
-struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id,
-						       unsigned short
-						       device_id);
-int i_find_free_pci_card_by_position(unsigned short vendor_id,
-				     unsigned short device_id,
-				     unsigned short pci_bus,
-				     unsigned short pci_slot,
-				     struct pcilst_struct **card);
-struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
-						    unsigned short device_id,
-						    unsigned short pci_bus,
-						    unsigned short pci_slot);
-
-int i_pci_card_alloc(struct pcilst_struct *amcc);
-int i_pci_card_free(struct pcilst_struct *amcc);
-void v_pci_card_list_display(void);
-int i_pci_card_data(struct pcilst_struct *amcc,
-		    unsigned char *pci_bus, unsigned char *pci_slot,
-		    unsigned char *pci_func, unsigned short *io_addr,
-		    unsigned short *irq, unsigned short *master);
-
-/****************************************************************************/
-
-/* build list of amcc cards in this system */
-void v_pci_card_list_init(unsigned short pci_vendor, char display)
-{
-	struct pci_dev *pcidev;
-	struct pcilst_struct *amcc, *last;
-	int i;
-
-	amcc_devices = NULL;
-	last = NULL;
-
-	pci_for_each_dev(pcidev) {
-		if (pcidev->vendor == pci_vendor) {
-			amcc = kzalloc(sizeof(*amcc), GFP_KERNEL);
-			if (amcc == NULL)
-				continue;
-
-			amcc->pcidev = pcidev;
-			if (last) {
-				last->next = amcc;
-			} else {
-				amcc_devices = amcc;
-			}
-			last = amcc;
-
-			amcc->vendor = pcidev->vendor;
-			amcc->device = pcidev->device;
-#if 0
-			amcc->master = pcidev->master;	/*  how get this information under 2.4 kernels? */
-#endif
-			amcc->pci_bus = pcidev->bus->number;
-			amcc->pci_slot = PCI_SLOT(pcidev->devfn);
-			amcc->pci_func = PCI_FUNC(pcidev->devfn);
-			for (i = 0; i < 5; i++)
-				amcc->io_addr[i] =
-				    pcidev->resource[i].start & ~3UL;
-			amcc->irq = pcidev->irq;
-		}
-	}
-
-	if (display)
-		v_pci_card_list_display();
-}
-
-/****************************************************************************/
-/* free up list of amcc cards in this system */
-void v_pci_card_list_cleanup(unsigned short pci_vendor)
-{
-	struct pcilst_struct *amcc, *next;
-
-	for (amcc = amcc_devices; amcc; amcc = next) {
-		next = amcc->next;
-		kfree(amcc);
-	}
-
-	amcc_devices = NULL;
-}
-
-/****************************************************************************/
-/* find first unused card with this device_id */
-struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id,
-						       unsigned short device_id)
-{
-	struct pcilst_struct *amcc, *next;
-
-	for (amcc = amcc_devices; amcc; amcc = next) {
-		next = amcc->next;
-		if ((!amcc->used) && (amcc->device == device_id)
-		    && (amcc->vendor == vendor_id))
-			return amcc;
-
-	}
-
-	return NULL;
-}
-
-/****************************************************************************/
-/* find card on requested position */
-int i_find_free_pci_card_by_position(unsigned short vendor_id,
-				     unsigned short device_id,
-				     unsigned short pci_bus,
-				     unsigned short pci_slot,
-				     struct pcilst_struct **card)
-{
-	struct pcilst_struct *amcc, *next;
-
-	*card = NULL;
-	for (amcc = amcc_devices; amcc; amcc = next) {
-		next = amcc->next;
-		if ((amcc->vendor == vendor_id) && (amcc->device == device_id)
-		    && (amcc->pci_bus == pci_bus)
-		    && (amcc->pci_slot == pci_slot)) {
-			if (!(amcc->used)) {
-				*card = amcc;
-				return 0;	/*  ok, card is found */
-			} else {
-				printk
-				    (" - \nCard on requested position is used b:s %d:%d!\n",
-				     pci_bus, pci_slot);
-				return 2;	/*  card exist but is used */
-			}
-		}
-	}
-
-	return 1;		/*  no card found */
-}
-
-/****************************************************************************/
-/* mark card as used */
-int i_pci_card_alloc(struct pcilst_struct *amcc)
-{
-	if (!amcc)
-		return -1;
-
-	if (amcc->used)
-		return 1;
-	amcc->used = 1;
-	return 0;
-}
-
-/****************************************************************************/
-/* mark card as free */
-int i_pci_card_free(struct pcilst_struct *amcc)
-{
-	if (!amcc)
-		return -1;
-
-	if (!amcc->used)
-		return 1;
-	amcc->used = 0;
-	return 0;
-}
-
-/****************************************************************************/
-/* display list of found cards */
-void v_pci_card_list_display(void)
-{
-	struct pcilst_struct *amcc, *next;
-
-	printk("List of pci cards\n");
-	printk("bus:slot:func vendor device master io_amcc io_daq irq used\n");
-
-	for (amcc = amcc_devices; amcc; amcc = next) {
-		next = amcc->next;
-		printk
-		    ("%2d   %2d   %2d  0x%4x 0x%4x   %3s   0x%4x 0x%4x  %2d  %2d\n",
-		     amcc->pci_bus, amcc->pci_slot, amcc->pci_func,
-		     amcc->vendor, amcc->device, amcc->master ? "yes" : "no",
-		     amcc->io_addr[0], amcc->io_addr[2], amcc->irq, amcc->used);
-
-	}
-}
-
-/****************************************************************************/
-/* return all card information for driver */
-int i_pci_card_data(struct pcilst_struct *amcc,
-		    unsigned char *pci_bus, unsigned char *pci_slot,
-		    unsigned char *pci_func, unsigned short *io_addr,
-		    unsigned short *irq, unsigned short *master)
-{
-	int i;
-
-	if (!amcc)
-		return -1;
-	*pci_bus = amcc->pci_bus;
-	*pci_slot = amcc->pci_slot;
-	*pci_func = amcc->pci_func;
-	for (i = 0; i < 5; i++)
-		io_addr[i] = amcc->io_addr[i];
-	*irq = amcc->irq;
-	*master = amcc->master;
-	return 0;
-}
-
-/****************************************************************************/
-/* select and alloc card */
-struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
-						    unsigned short device_id,
-						    unsigned short pci_bus,
-						    unsigned short pci_slot)
-{
-	struct pcilst_struct *card;
-
-	if ((pci_bus < 1) & (pci_slot < 1)) {	/*  use autodetection */
-		card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
-		if (card == NULL) {
-			printk(" - Unused card not found in system!\n");
-			return NULL;
-		}
-	} else {
-		switch (i_find_free_pci_card_by_position(vendor_id, device_id,
-							 pci_bus, pci_slot,
-							 &card)) {
-		case 1:
-			printk
-			    (" - Card not found on requested position b:s %d:%d!\n",
-			     pci_bus, pci_slot);
-			return NULL;
-		case 2:
-			printk
-			    (" - Card on requested position is used b:s %d:%d!\n",
-			     pci_bus, pci_slot);
-			return NULL;
-		}
-	}
-
-	if (i_pci_card_alloc(card) != 0) {
-		printk(" - Can't allocate card!\n");
-		return NULL;
-	}
-
-	return card;
-}
-
-#endif
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_APCI1710.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_APCI1710.c
index 595238feaf4..f9a8937be8e 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_APCI1710.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_APCI1710.c
@@ -67,7 +67,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 		return;
 
 	/*  Allocate and Initialise Timer Subdevice Structures */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 
 	s->type = COMEDI_SUBD_TIMER;
 	s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
@@ -81,7 +81,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_bits = i_APCI1710_InsnBitsTimer;
 
 	/*  Allocate and Initialise DIO Subdevice Structures */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags =
@@ -96,7 +96,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_write = i_APCI1710_InsnWriteDigitalIOChlOnOff;
 
 	/*  Allocate and Initialise Chrono Subdevice Structures */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 
 	s->type = COMEDI_SUBD_CHRONO;
 	s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
@@ -110,7 +110,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_bits = i_APCI1710_InsnBitsChronoDigitalIO;
 
 	/*  Allocate and Initialise PWM Subdevice Structures */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_PWM;
 	s->subdev_flags =
 		SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
@@ -125,7 +125,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_bits = i_APCI1710_InsnBitsReadPWMInterrupt;
 
 	/*  Allocate and Initialise TTLIO Subdevice Structures */
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	s->type = COMEDI_SUBD_TTLIO;
 	s->subdev_flags =
 		SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
@@ -139,7 +139,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_read = i_APCI1710_InsnReadTTLIOAllPortValue;
 
 	/*  Allocate and Initialise TOR Subdevice Structures */
-	s = dev->subdevices + 5;
+	s = &dev->subdevices[5];
 	s->type = COMEDI_SUBD_TOR;
 	s->subdev_flags =
 		SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
@@ -154,7 +154,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_bits = i_APCI1710_InsnBitsGetTorCounterProgressStatusAndValue;
 
 	/*  Allocate and Initialise SSI Subdevice Structures */
-	s = dev->subdevices + 6;
+	s = &dev->subdevices[6];
 	s->type = COMEDI_SUBD_SSI;
 	s->subdev_flags =
 		SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
@@ -167,7 +167,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_bits = i_APCI1710_InsnBitsSSIDigitalIO;
 
 	/*  Allocate and Initialise PULSEENCODER Subdevice Structures */
-	s = dev->subdevices + 7;
+	s = &dev->subdevices[7];
 	s->type = COMEDI_SUBD_PULSEENCODER;
 	s->subdev_flags =
 		SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
@@ -181,7 +181,7 @@ void i_ADDI_AttachPCI1710(struct comedi_device *dev)
 	s->insn_read = i_APCI1710_InsnReadInterruptPulseEncoder;
 
 	/*  Allocate and Initialise INCREMENTALCOUNTER Subdevice Structures */
-	s = dev->subdevices + 8;
+	s = &dev->subdevices[8];
 	s->type = COMEDI_SUBD_INCREMENTALCOUNTER;
 	s->subdev_flags =
 		SDF_WRITEABLE | SDF_READABLE | SDF_GROUND | SDF_COMMON;
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index ffe390c6da8..f406dfb2a67 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -479,57 +479,26 @@ int i_APCI3120_CommandTestAnalogInput(struct comedi_device *dev, struct comedi_s
 	struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;		/*  divisor1,divisor2; */
 
-	/*  step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-		cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
-
-	if (cmd->convert_src != TRIG_TIMER)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
 
-	if (cmd->scan_end_src != TRIG_COUNT) {
-		cmd->scan_end_src = TRIG_COUNT;
-		err++;
-	}
-
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1451,7 +1420,7 @@ void v_APCI3120_Interrupt(int irq, void *d)
 	unsigned short us_TmpValue;
 	unsigned char b_DummyRead;
 
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	ui_Check = 1;
 
 	int_daq = inw(dev->iobase + APCI3120_RD_STATUS) & 0xf000;	/*  get IRQ reasons */
@@ -1656,7 +1625,7 @@ void v_APCI3120_Interrupt(int irq, void *d)
 int i_APCI3120_InterruptHandleEos(struct comedi_device *dev)
 {
 	int n_chan, i;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int err = 1;
 
 	n_chan = devpriv->ui_AiNbrofChannels;
@@ -1698,7 +1667,7 @@ int i_APCI3120_InterruptHandleEos(struct comedi_device *dev)
 void v_APCI3120_InterruptDma(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	unsigned int next_dma_buf, samplesinbuf;
 	unsigned long low_word, high_word, var;
 
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
index f9545b064ea..38ab49917d7 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
@@ -57,11 +57,8 @@ You should also find the complete GPL in the COPYING file accompanying this sour
   +----------------------------------------------------------------------------+
 */
 #include "hwdrv_apci3200.h"
-/* Begin JK 21.10.2004: APCI-3200 / APCI-3300 Reading of EEPROM values */
-#include "addi_amcc_S5920.h"
-/* #define PRINT_INFO */
 
-/* End JK 21.10.2004: APCI-3200 / APCI-3300 Reading of EEPROM values */
+/* #define PRINT_INFO */
 
 /* BEGIN JK 06.07.04: Management of sevrals boards */
 /*
@@ -90,7 +87,12 @@ You should also find the complete GPL in the COPYING file accompanying this sour
 struct str_BoardInfos s_BoardInfos[100];	/*  100 will be the max number of boards to be used */
 /* END JK 06.07.04: Management of sevrals boards */
 
-/* Begin JK 21.10.2004: APCI-3200 / APCI-3300 Reading of EEPROM values */
+#define AMCC_OP_REG_MCSR	0x3c
+#define EEPROM_BUSY		0x80000000
+#define NVCMD_LOAD_LOW		(0x4 << 5)	/* nvRam load low command */
+#define NVCMD_LOAD_HIGH		(0x5 << 5)	/* nvRam load high command */
+#define NVCMD_BEGIN_READ	(0x7 << 5)	/* nvRam begin read command */
+#define NVCMD_BEGIN_WRITE	(0x6 << 5)	/* EEPROM begin write command */
 
 /*+----------------------------------------------------------------------------+*/
 /*| Function   Name   : int i_AddiHeaderRW_ReadEeprom                          |*/
@@ -2558,7 +2560,6 @@ int i_APCI3200_CommandTestAnalogInput(struct comedi_device *dev, struct comedi_s
 {
 
 	int err = 0;
-	int tmp;		/*  divisor1,divisor2; */
 	unsigned int ui_ConvertTime = 0;
 	unsigned int ui_ConvertTimeBase = 0;
 	unsigned int ui_DelayTime = 0;
@@ -2569,41 +2570,32 @@ int i_APCI3200_CommandTestAnalogInput(struct comedi_device *dev, struct comedi_s
 	int i_Cpt = 0;
 	double d_ConversionTimeForAllChannels = 0.0;
 	double d_SCANTimeNewUnit = 0.0;
-	/*  step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
-	/* if(i_InterruptFlag==0) */
-	if (s_BoardInfos[dev->minor].i_InterruptFlag == 0) {
-		err++;
-		/*           printk("\nThe interrupt should be enabled\n"); */
-	}
+
+	/* Step 1 : check if triggers are trivially valid */
+
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+
+	if (s_BoardInfos[dev->minor].i_InterruptFlag == 0)
+		err |= -EINVAL;
+
 	if (err) {
 		i_APCI3200_Reset(dev);
 		return 1;
 	}
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT) {
-		err++;
-	}
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(&cmd->start_src);
+	err |= cfc_check_trigger_is_unique(&cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(&cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
+
 	if (cmd->start_src == TRIG_EXT) {
 		i_TriggerEdge = cmd->start_arg & 0xFFFF;
 		i_Triggermode = cmd->start_arg >> 16;
@@ -2617,21 +2609,6 @@ int i_APCI3200_CommandTestAnalogInput(struct comedi_device *dev, struct comedi_s
 		}
 	}
 
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-		cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
-
-	if (cmd->convert_src != TRIG_TIMER)
-		err++;
-
-	if (cmd->scan_end_src != TRIG_COUNT) {
-		cmd->scan_end_src = TRIG_COUNT;
-		err++;
-	}
-
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
-
 	if (err) {
 		i_APCI3200_Reset(dev);
 		return 2;
@@ -3495,7 +3472,7 @@ void v_APCI3200_Interrupt(int irq, void *d)
 int i_APCI3200_InterruptHandleEos(struct comedi_device *dev)
 {
 	unsigned int ui_StatusRegister = 0;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 
 	/* BEGIN JK 18.10.2004: APCI-3200 Driver update 0.7.57 -> 0.7.68 */
 	/* comedi_async *async = s->async; */
diff --git a/drivers/staging/comedi/drivers/addi_apci_all.c b/drivers/staging/comedi/drivers/addi_apci_all.c
deleted file mode 100644
index aeb1b2688f3..00000000000
--- a/drivers/staging/comedi/drivers/addi_apci_all.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#define CONFIG_APCI_035  1
-#define CONFIG_APCI_1032 1
-#define CONFIG_APCI_1500 1
-#define CONFIG_APCI_1516 1
-#define CONFIG_APCI_1564 1
-#define CONFIG_APCI_16XX 1
-#define CONFIG_APCI_1710 1
-#define CONFIG_APCI_2016 1
-#define CONFIG_APCI_2032 1
-#define CONFIG_APCI_2200 1
-#define CONFIG_APCI_3001 1
-#define CONFIG_APCI_3120 1
-#define CONFIG_APCI_3200 1
-#define CONFIG_APCI_3300 1
-#define CONFIG_APCI_3501 1
-#define CONFIG_APCI_3XXX 1
-
-#include "addi-data/addi_common.c"
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 3bec0f6e4a8..3492ce1156e 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -27,14 +27,14 @@
 */
 /*
 Driver: adl_pci6208
-Description: ADLink PCI-6208A
-Devices: [ADLink] PCI-6208A (adl_pci6208)
+Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
+Devices: (ADLink) PCI-6208 [adl_pci6208]
+	 (ADLink) PCI-6216 [adl_pci6216]
 Author: nsyeow <nsyeow@pd.jaring.my>
 Updated: Fri, 30 Jan 2004 14:44:27 +0800
 Status: untested
 
-Configuration Options:
-  none
+Configuration Options: not applicable, uses PCI auto config
 
 References:
 	- ni_660x.c
@@ -45,6 +45,12 @@ References:
 #include "../comedidev.h"
 
 /*
+ * ADLINK PCI Device ID's supported by this driver
+ */
+#define PCI_DEVICE_ID_PCI6208		0x6208
+#define PCI_DEVICE_ID_PCI6216		0x6216
+
+/*
  * PCI-6208/6216-GL register map
  */
 #define PCI6208_AO_CONTROL(x)		(0x00 + (2 * (x)))
@@ -56,7 +62,7 @@ References:
 #define PCI6208_DIO_DI_MASK		(0xf0)
 #define PCI6208_DIO_DI_SHIFT		(4)
 
-#define PCI6208_MAX_AO_CHANNELS		8
+#define PCI6208_MAX_AO_CHANNELS		16
 
 struct pci6208_board {
 	const char *name;
@@ -66,9 +72,13 @@ struct pci6208_board {
 
 static const struct pci6208_board pci6208_boards[] = {
 	{
-		.name		= "pci6208a",
-		.dev_id		= 0x6208,
+		.name		= "adl_pci6208",
+		.dev_id		= PCI_DEVICE_ID_PCI6208,
 		.ao_chans	= 8,
+	}, {
+		.name		= "adl_pci6216",
+		.dev_id		= PCI_DEVICE_ID_PCI6216,
+		.ao_chans	= 16,
 	},
 };
 
@@ -115,141 +125,122 @@ static int pci6208_ao_rinsn(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int pci6208_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
+static int pci6208_di_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	unsigned int val;
+
+	val = inw(dev->iobase + PCI6208_DIO);
+	val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
+
+	data[1] = val;
+
+	return insn->n;
+}
+
+static int pci6208_do_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	unsigned int mask = data[0] & PCI6208_DIO_DO_MASK;
+	unsigned int mask = data[0];
 	unsigned int bits = data[1];
 
 	if (mask) {
 		s->state &= ~mask;
-		s->state |= bits & mask;
+		s->state |= (bits & mask);
 
 		outw(s->state, dev->iobase + PCI6208_DIO);
 	}
 
-	s->state = inw(dev->iobase + PCI6208_DIO);
 	data[1] = s->state;
 
 	return insn->n;
 }
 
-static int pci6208_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask = 1 << chan;
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_QUERY:
-		data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static struct pci_dev *pci6208_find_device(struct comedi_device *dev,
-					   struct comedi_devconfig *it)
+static const void *pci6208_find_boardinfo(struct comedi_device *dev,
+					  struct pci_dev *pcidev)
 {
-	const struct pci6208_board *thisboard;
-	struct pci_dev *pci_dev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
+	const struct pci6208_board *boardinfo;
 	int i;
 
-	for_each_pci_dev(pci_dev) {
-		if (pci_dev->vendor != PCI_VENDOR_ID_ADLINK)
-			continue;
-		for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
-			thisboard = &pci6208_boards[i];
-			if (thisboard->dev_id != pci_dev->device)
-				continue;
-			/* was a particular bus/slot requested? */
-			if (bus || slot) {
-				/* are we on the wrong bus/slot? */
-				if (pci_dev->bus->number != bus ||
-				    PCI_SLOT(pci_dev->devfn) != slot)
-					continue;
-			}
-			dev_dbg(dev->class_dev,
-				"Found %s on bus %d, slot, %d, irq=%d\n",
-				thisboard->name,
-				pci_dev->bus->number,
-				PCI_SLOT(pci_dev->devfn),
-				pci_dev->irq);
-			dev->board_ptr = thisboard;
-			return pci_dev;
-		}
+	for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
+		boardinfo = &pci6208_boards[i];
+		if (boardinfo->dev_id == pcidev->device)
+			return boardinfo;
 	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
 	return NULL;
 }
 
-static int pci6208_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static int pci6208_attach_pci(struct comedi_device *dev,
+			      struct pci_dev *pcidev)
 {
-	const struct pci6208_board *thisboard;
+	const struct pci6208_board *boardinfo;
 	struct pci6208_private *devpriv;
-	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
+	unsigned int val;
 	int ret;
 
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	boardinfo = pci6208_find_boardinfo(dev, pcidev);
+	if (!boardinfo)
+		return -ENODEV;
+	dev->board_ptr = boardinfo;
+	dev->board_name = boardinfo->name;
+
 	ret = alloc_private(dev, sizeof(*devpriv));
 	if (ret < 0)
 		return ret;
 	devpriv = dev->private;
 
-	pcidev = pci6208_find_device(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-	thisboard = comedi_board(dev);
-
-	dev->board_name = thisboard->name;
-
-	ret = comedi_pci_enable(pcidev, dev->driver->driver_name);
-	if (ret) {
-		dev_err(dev->class_dev,
-			"Failed to enable PCI device and request regions\n");
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
 		return ret;
-	}
 	dev->iobase = pci_resource_start(pcidev, 2);
 
-	ret = comedi_alloc_subdevices(dev, 2);
+	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog output subdevice */
 	s->type		= COMEDI_SUBD_AO;
 	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= thisboard->ao_chans;
+	s->n_chan	= boardinfo->ao_chans;
 	s->maxdata	= 0xffff;
 	s->range_table	= &range_bipolar10;
 	s->insn_write	= pci6208_ao_winsn;
 	s->insn_read	= pci6208_ao_rinsn;
 
-	s = dev->subdevices + 1;
-	/* digital i/o subdevice */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
+	s = &dev->subdevices[1];
+	/* digital input subdevice */
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 4;
 	s->maxdata	= 1;
 	s->range_table	= &range_digital;
-	s->insn_bits	= pci6208_dio_insn_bits;
-	s->insn_config	= pci6208_dio_insn_config;
+	s->insn_bits	= pci6208_di_insn_bits;
 
+	s = &dev->subdevices[2];
+	/* digital output subdevice */
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 4;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci6208_do_insn_bits;
+
+	/*
+	 * Get the read back signals from the digital outputs
+	 * and save it as the initial state for the subdevice.
+	 */
+	val = inw(dev->iobase + PCI6208_DIO);
+	val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
+	s->state	= val;
 	s->io_bits	= 0x0f;
-	s->state	= inw(dev->iobase + PCI6208_DIO);
 
 	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
 		dev->driver->driver_name, dev->board_name, dev->iobase);
@@ -264,14 +255,13 @@ static void pci6208_detach(struct comedi_device *dev)
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver adl_pci6208_driver = {
 	.driver_name	= "adl_pci6208",
 	.module		= THIS_MODULE,
-	.attach		= pci6208_attach,
+	.attach_pci	= pci6208_attach_pci,
 	.detach		= pci6208_detach,
 };
 
@@ -287,7 +277,8 @@ static void __devexit adl_pci6208_pci_remove(struct pci_dev *dev)
 }
 
 static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI6208) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI6216) },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
diff --git a/drivers/staging/comedi/drivers/adl_pci7230.c b/drivers/staging/comedi/drivers/adl_pci7230.c
deleted file mode 100644
index 7df4c960d5e..00000000000
--- a/drivers/staging/comedi/drivers/adl_pci7230.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
-    comedi/drivers/adl_pci7230.c
-
-    Hardware comedi driver fot PCI7230 Adlink card
-    Copyright (C) 2010 David Fernandez <dfcastelao@gmail.com>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-/*
-Driver: adl_pci7230
-Description: Driver for the Adlink PCI-7230 32 ch. isolated digital io board
-Devices: [ADLink] PCI-7230 (adl_pci7230)
-Author: David Fernandez <dfcastelao@gmail.com>
-Status: experimental
-Updated: Mon, 14 Apr 2008 15:08:14 +0100
-
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
-*/
-
-#include "../comedidev.h"
-#include <linux/kernel.h>
-
-#define PCI7230_DI      0x00
-#define PCI7230_DO	    0x00
-
-#define PCI_DEVICE_ID_PCI7230 0x7230
-
-static int adl_pci7230_do_insn_bits(struct comedi_device *dev,
-	struct comedi_subdevice *s,
-	struct comedi_insn *insn,
-	unsigned int *data)
-{
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-
-		outl((s->state  << 16) & 0xffffffff, dev->iobase + PCI7230_DO);
-	}
-
-	return insn->n;
-}
-
-static int adl_pci7230_di_insn_bits(struct comedi_device *dev,
-	struct comedi_subdevice *s,
-	struct comedi_insn *insn,
-	unsigned int *data)
-{
-	data[1] = inl(dev->iobase + PCI7230_DI) & 0xffffffff;
-
-	return insn->n;
-}
-
-static struct pci_dev *adl_pci7230_find_pci(struct comedi_device *dev,
-	struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor != PCI_VENDOR_ID_ADLINK ||
-		    pcidev->device != PCI_DEVICE_ID_PCI7230)
-			continue;
-		if (bus || slot) {
-			/* requested particular bus/slot */
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		return pcidev;
-	}
-	printk(KERN_ERR "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
-		dev->minor, bus, slot);
-	return NULL;
-}
-
-static int adl_pci7230_attach(struct comedi_device *dev,
-	struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	struct pci_dev *pcidev;
-	int ret;
-
-	printk(KERN_INFO "comedi%d: adl_pci7230\n", dev->minor);
-
-	dev->board_name = "pci7230";
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	pcidev = adl_pci7230_find_pci(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	if (comedi_pci_enable(pcidev, "adl_pci7230") < 0) {
-		printk(KERN_ERR "comedi%d: Failed to enable PCI device and request regions\n",
-			dev->minor);
-		return -EIO;
-	}
-	dev->iobase = pci_resource_start(pcidev, 2);
-	printk(KERN_DEBUG "comedi: base addr %4lx\n", dev->iobase);
-
-	s = dev->subdevices + 0;
-	/* Isolated do */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = adl_pci7230_do_insn_bits;
-
-	s = dev->subdevices + 1;
-	/* Isolated di */
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = adl_pci7230_di_insn_bits;
-
-	printk(KERN_DEBUG "comedi: attached\n");
-
-	return 1;
-}
-
-static void adl_pci7230_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	}
-}
-
-static struct comedi_driver adl_pci7230_driver = {
-	.driver_name	= "adl_pci7230",
-	.module		= THIS_MODULE,
-	.attach		= adl_pci7230_attach,
-	.detach		= adl_pci7230_detach,
-};
-
-static int __devinit adl_pci7230_pci_probe(struct pci_dev *dev,
-					   const struct pci_device_id *ent)
-{
-	return comedi_pci_auto_config(dev, &adl_pci7230_driver);
-}
-
-static void __devexit adl_pci7230_pci_remove(struct pci_dev *dev)
-{
-	comedi_pci_auto_unconfig(dev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(adl_pci7230_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7230) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci7230_pci_table);
-
-static struct pci_driver adl_pci7230_pci_driver = {
-	.name		= "adl_pci7230",
-	.id_table	= adl_pci7230_pci_table,
-	.probe		= adl_pci7230_pci_probe,
-	.remove		= __devexit_p(adl_pci7230_pci_remove),
-};
-module_comedi_pci_driver(adl_pci7230_driver, adl_pci7230_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci7296.c b/drivers/staging/comedi/drivers/adl_pci7296.c
deleted file mode 100644
index 19b47af9c10..00000000000
--- a/drivers/staging/comedi/drivers/adl_pci7296.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
-    comedi/drivers/adl_pci7296.c
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-/*
-Driver: adl_pci7296
-Description: Driver for the Adlink PCI-7296 96 ch. digital io board
-Devices: [ADLink] PCI-7296 (adl_pci7296)
-Author: Jon Grierson <jd@renko.co.uk>
-Updated: Mon, 14 Apr 2008 15:05:56 +0100
-Status: testing
-
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
-*/
-
-#include "../comedidev.h"
-#include <linux/kernel.h>
-
-#include "8255.h"
-/* #include "8253.h" */
-
-#define PORT1A 0
-#define PORT2A 4
-#define PORT3A 8
-#define PORT4A 12
-
-#define PCI_DEVICE_ID_PCI7296 0x7296
-
-static struct pci_dev *adl_pci7296_find_pci(struct comedi_device *dev,
-					    struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor != PCI_VENDOR_ID_ADLINK ||
-		    pcidev->device != PCI_DEVICE_ID_PCI7296)
-			continue;
-		if (bus || slot) {
-			/* requested particular bus/slot */
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		return pcidev;
-	}
-	printk(KERN_ERR
-		"comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
-	       dev->minor, bus, slot);
-	return NULL;
-}
-
-static int adl_pci7296_attach(struct comedi_device *dev,
-			      struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	struct comedi_subdevice *s;
-	int ret;
-
-	printk(KERN_INFO "comedi%d: attach adl_pci7432\n", dev->minor);
-
-	dev->board_name = "pci7432";
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	pcidev = adl_pci7296_find_pci(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	if (comedi_pci_enable(pcidev, "adl_pci7296") < 0) {
-		printk(KERN_ERR
-			"comedi%d: Failed to enable PCI device and request regions\n",
-			dev->minor);
-		return -EIO;
-	}
-
-	dev->iobase = pci_resource_start(pcidev, 2);
-	printk(KERN_INFO "comedi: base addr %4lx\n", dev->iobase);
-
-	/*  four 8255 digital io subdevices */
-	s = dev->subdevices + 0;
-	subdev_8255_init(dev, s, NULL, (unsigned long)(dev->iobase));
-
-	s = dev->subdevices + 1;
-	ret = subdev_8255_init(dev, s, NULL,
-				(unsigned long)(dev->iobase + PORT2A));
-	if (ret < 0)
-		return ret;
-
-	s = dev->subdevices + 2;
-	ret = subdev_8255_init(dev, s, NULL,
-				(unsigned long)(dev->iobase + PORT3A));
-	if (ret < 0)
-		return ret;
-
-	s = dev->subdevices + 3;
-	ret = subdev_8255_init(dev, s, NULL,
-				(unsigned long)(dev->iobase + PORT4A));
-	if (ret < 0)
-		return ret;
-
-	printk(KERN_DEBUG "comedi%d: adl_pci7432 attached\n", dev->minor);
-
-	return 0;
-}
-
-static void adl_pci7296_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	}
-	if (dev->subdevices) {
-		subdev_8255_cleanup(dev, dev->subdevices + 0);
-		subdev_8255_cleanup(dev, dev->subdevices + 1);
-		subdev_8255_cleanup(dev, dev->subdevices + 2);
-		subdev_8255_cleanup(dev, dev->subdevices + 3);
-	}
-}
-
-static struct comedi_driver adl_pci7296_driver = {
-	.driver_name	= "adl_pci7296",
-	.module		= THIS_MODULE,
-	.attach		= adl_pci7296_attach,
-	.detach		= adl_pci7296_detach,
-};
-
-static int __devinit adl_pci7296_pci_probe(struct pci_dev *dev,
-					   const struct pci_device_id *ent)
-{
-	return comedi_pci_auto_config(dev, &adl_pci7296_driver);
-}
-
-static void __devexit adl_pci7296_pci_remove(struct pci_dev *dev)
-{
-	comedi_pci_auto_unconfig(dev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(adl_pci7296_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci7296_pci_table);
-
-static struct pci_driver adl_pci7296_pci_driver = {
-	.name		= "adl_pci7296",
-	.id_table	= adl_pci7296_pci_table,
-	.probe		= adl_pci7296_pci_probe,
-	.remove		= __devexit_p(adl_pci7296_pci_remove),
-};
-module_comedi_pci_driver(adl_pci7296_driver, adl_pci7296_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci7432.c b/drivers/staging/comedi/drivers/adl_pci7432.c
deleted file mode 100644
index 6b8d9408e3b..00000000000
--- a/drivers/staging/comedi/drivers/adl_pci7432.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
-    comedi/drivers/adl_pci7432.c
-
-    Hardware comedi driver fot PCI7432 Adlink card
-    Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-/*
-Driver: adl_pci7432
-Description: Driver for the Adlink PCI-7432 64 ch. isolated digital io board
-Devices: [ADLink] PCI-7432 (adl_pci7432)
-Author: Michel Lachaine <mike@mikelachaine.ca>
-Status: experimental
-Updated: Mon, 14 Apr 2008 15:08:14 +0100
-
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
-*/
-
-#include "../comedidev.h"
-#include <linux/kernel.h>
-
-#define PCI7432_DI      0x00
-#define PCI7432_DO	    0x00
-
-#define PCI_DEVICE_ID_PCI7432 0x7432
-
-static int adl_pci7432_do_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	printk(KERN_DEBUG "comedi: pci7432_do_insn_bits called\n");
-	printk(KERN_DEBUG "comedi: data0: %8x data1: %8x\n", data[0], data[1]);
-
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-
-		printk(KERN_DEBUG "comedi: out: %8x on iobase %4lx\n", s->state,
-		       dev->iobase + PCI7432_DO);
-		outl(s->state & 0xffffffff, dev->iobase + PCI7432_DO);
-	}
-	return insn->n;
-}
-
-static int adl_pci7432_di_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	printk(KERN_DEBUG "comedi: pci7432_di_insn_bits called\n");
-	printk(KERN_DEBUG "comedi: data0: %8x data1: %8x\n", data[0], data[1]);
-
-	data[1] = inl(dev->iobase + PCI7432_DI) & 0xffffffff;
-	printk(KERN_DEBUG "comedi: data1 %8x\n", data[1]);
-
-	return insn->n;
-}
-
-static struct pci_dev *adl_pci7432_find_pci(struct comedi_device *dev,
-					    struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor != PCI_VENDOR_ID_ADLINK ||
-		    pcidev->device != PCI_DEVICE_ID_PCI7432)
-			continue;
-		if (bus || slot) {
-			/* requested particular bus/slot */
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		return pcidev;
-	}
-	printk(KERN_ERR
-		"comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
-	       dev->minor, bus, slot);
-	return NULL;
-}
-
-static int adl_pci7432_attach(struct comedi_device *dev,
-			      struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	struct comedi_subdevice *s;
-	int ret;
-
-	printk(KERN_INFO "comedi%d: attach adl_pci7432\n", dev->minor);
-
-	dev->board_name = "pci7432";
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	pcidev = adl_pci7432_find_pci(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	if (comedi_pci_enable(pcidev, "adl_pci7432") < 0) {
-		printk(KERN_ERR "comedi%d: Failed to enable PCI device and request regions\n",
-			dev->minor);
-		return -EIO;
-	}
-	dev->iobase = pci_resource_start(pcidev, 2);
-	printk(KERN_INFO "comedi: base addr %4lx\n", dev->iobase);
-
-	s = dev->subdevices + 0;
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan = 32;
-	s->maxdata = 1;
-	s->len_chanlist = 32;
-	s->io_bits = 0x00000000;
-	s->range_table = &range_digital;
-	s->insn_bits = adl_pci7432_di_insn_bits;
-
-	s = dev->subdevices + 1;
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan = 32;
-	s->maxdata = 1;
-	s->len_chanlist = 32;
-	s->io_bits = 0xffffffff;
-	s->range_table = &range_digital;
-	s->insn_bits = adl_pci7432_do_insn_bits;
-
-	printk(KERN_DEBUG "comedi%d: adl_pci7432 attached\n", dev->minor);
-	return 0;
-}
-
-static void adl_pci7432_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	}
-}
-
-static struct comedi_driver adl_pci7432_driver = {
-	.driver_name	= "adl_pci7432",
-	.module		= THIS_MODULE,
-	.attach		= adl_pci7432_attach,
-	.detach		= adl_pci7432_detach,
-};
-
-static int __devinit adl_pci7432_pci_probe(struct pci_dev *dev,
-					   const struct pci_device_id *ent)
-{
-	return comedi_pci_auto_config(dev, &adl_pci7432_driver);
-}
-
-static void __devexit adl_pci7432_pci_remove(struct pci_dev *dev)
-{
-	comedi_pci_auto_unconfig(dev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(adl_pci7432_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci7432_pci_table);
-
-static struct pci_driver adl_pci7432_pci_driver = {
-	.name		= "adl_pci7432",
-	.id_table	= adl_pci7432_pci_table,
-	.probe		= adl_pci7432_pci_probe,
-	.remove		= __devexit_p(adl_pci7432_pci_remove),
-};
-module_comedi_pci_driver(adl_pci7432_driver, adl_pci7432_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c
new file mode 100644
index 00000000000..599714e978b
--- /dev/null
+++ b/drivers/staging/comedi/drivers/adl_pci7x3x.c
@@ -0,0 +1,332 @@
+/*
+ * COMEDI driver for the ADLINK PCI-723x/743x series boards.
+ * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * Based on the adl_pci7230 driver written by:
+ *	David Fernandez <dfcastelao@gmail.com>
+ * and the adl_pci7432 driver written by:
+ *	Michel Lachaine <mike@mikelachaine.ca>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+Driver: adl_pci7x3x
+Description: 32/64-Channel Isolated Digital I/O Boards
+Devices: (ADLink) PCI-7230 [adl_pci7230] - 16 input / 16 output
+	 (ADLink) PCI-7233 [adl_pci7233] - 32 input
+	 (ADLink) PCI-7234 [adl_pci7234] - 32 output
+	 (ADLink) PCI-7432 [adl_pci7432] - 32 input / 32 output
+	 (ADLink) PCI-7433 [adl_pci7433] - 64 input
+	 (ADLink) PCI-7434 [adl_pci7434] - 64 output
+Author: H Hartley Sweeten <hsweeten@visionengravers.com>
+Updated: Thu, 02 Aug 2012 14:27:46 -0700
+Status: untested
+
+This driver only attaches using the PCI PnP auto config support
+in the comedi core. The module parameter 'comedi_autoconfig'
+must be 1 (default) to enable this feature. The COMEDI_DEVCONFIG
+ioctl, used by the comedi_config utility, is not supported by
+this driver.
+
+The PCI-7230, PCI-7432 and PCI-7433 boards also support external
+interrupt signals on digital input channels 0 and 1. The PCI-7233
+has dual-interrupt sources for change-of-state (COS) on any 16
+digital input channels of LSB and for COS on any 16 digital input
+lines of MSB. Interrupts are not currently supported by this
+driver.
+
+Configuration Options: not applicable
+*/
+
+#include "../comedidev.h"
+
+/*
+ * PCI Device ID's supported by this driver
+ */
+#define PCI_DEVICE_ID_PCI7230	0x7230
+#define PCI_DEVICE_ID_PCI7233	0x7233
+#define PCI_DEVICE_ID_PCI7234	0x7234
+#define PCI_DEVICE_ID_PCI7432	0x7432
+#define PCI_DEVICE_ID_PCI7433	0x7433
+#define PCI_DEVICE_ID_PCI7434	0x7434
+
+/*
+ * Register I/O map (32-bit access only)
+ */
+#define PCI7X3X_DIO_REG		0x00
+#define PCI743X_DIO_REG		0x04
+
+struct adl_pci7x3x_boardinfo {
+	const char *name;
+	unsigned short device;
+	int nsubdevs;
+	int di_nchan;
+	int do_nchan;
+};
+
+static const struct adl_pci7x3x_boardinfo adl_pci7x3x_boards[] = {
+	{
+		.name		= "adl_pci7230",
+		.device		= PCI_DEVICE_ID_PCI7230,
+		.nsubdevs	= 2,
+		.di_nchan	= 16,
+		.do_nchan	= 16,
+	}, {
+		.name		= "adl_pci7233",
+		.device		= PCI_DEVICE_ID_PCI7233,
+		.nsubdevs	= 1,
+		.di_nchan	= 32,
+	}, {
+		.name		= "adl_pci7234",
+		.device		= PCI_DEVICE_ID_PCI7234,
+		.nsubdevs	= 1,
+		.do_nchan	= 32,
+	}, {
+		.name		= "adl_pci7432",
+		.device		= PCI_DEVICE_ID_PCI7432,
+		.nsubdevs	= 2,
+		.di_nchan	= 32,
+		.do_nchan	= 32,
+	}, {
+		.name		= "adl_pci7433",
+		.device		= PCI_DEVICE_ID_PCI7433,
+		.nsubdevs	= 2,
+		.di_nchan	= 64,
+	}, {
+		.name		= "adl_pci7434",
+		.device		= PCI_DEVICE_ID_PCI7434,
+		.nsubdevs	= 2,
+		.do_nchan	= 64,
+	}
+};
+
+static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev,
+				    struct comedi_subdevice *s,
+				    struct comedi_insn *insn,
+				    unsigned int *data)
+{
+	unsigned long reg = (unsigned long)s->private;
+	unsigned int mask = data[0];
+	unsigned int bits = data[1];
+
+	if (mask) {
+		s->state &= ~mask;
+		s->state |= (bits & mask);
+
+		outl(s->state, dev->iobase + reg);
+	}
+
+	/*
+	 * NOTE: The output register is not readable.
+	 * This returned state will not be correct until all the
+	 * outputs have been updated.
+	 */
+	data[1] = s->state;
+
+	return insn->n;
+}
+
+static int adl_pci7x3x_di_insn_bits(struct comedi_device *dev,
+				    struct comedi_subdevice *s,
+				    struct comedi_insn *insn,
+				    unsigned int *data)
+{
+	unsigned long reg = (unsigned long)s->private;
+
+	data[1] = inl(dev->iobase + reg);
+
+	return insn->n;
+}
+
+static const void *adl_pci7x3x_find_boardinfo(struct comedi_device *dev,
+					      struct pci_dev *pcidev)
+{
+	const struct adl_pci7x3x_boardinfo *board;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(adl_pci7x3x_boards); i++) {
+		board = &adl_pci7x3x_boards[i];
+		if (pcidev->device == board->device)
+			return board;
+	}
+	return NULL;
+}
+
+static int adl_pci7x3x_attach_pci(struct comedi_device *dev,
+				  struct pci_dev *pcidev)
+{
+	const struct adl_pci7x3x_boardinfo *board;
+	struct comedi_subdevice *s;
+	int subdev;
+	int nchan;
+	int ret;
+
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	board = adl_pci7x3x_find_boardinfo(dev, pcidev);
+	if (!board)
+		return -ENODEV;
+	dev->board_ptr = board;
+	dev->board_name = board->name;
+
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	dev->iobase = pci_resource_start(pcidev, 2);
+
+	/*
+	 * One or two subdevices are setup by this driver depending on
+	 * the number of digital inputs and/or outputs provided by the
+	 * board. Each subdevice has a maximum of 32 channels.
+	 *
+	 *	PCI-7230 - 2 subdevices: 0 - 16 input, 1 - 16 output
+	 *	PCI-7233 - 1 subdevice: 0 - 32 input
+	 *	PCI-7234 - 1 subdevice: 0 - 32 output
+	 *	PCI-7432 - 2 subdevices: 0 - 32 input, 1 - 32 output
+	 *	PCI-7433 - 2 subdevices: 0 - 32 input, 1 - 32 input
+	 *	PCI-7434 - 2 subdevices: 0 - 32 output, 1 - 32 output
+	 */
+	ret = comedi_alloc_subdevices(dev, board->nsubdevs);
+	if (ret)
+		return ret;
+
+	subdev = 0;
+
+	if (board->di_nchan) {
+		nchan = min(board->di_nchan, 32);
+
+		s = &dev->subdevices[subdev];
+		/* Isolated digital inputs 0 to 15/31 */
+		s->type		= COMEDI_SUBD_DI;
+		s->subdev_flags	= SDF_READABLE;
+		s->n_chan	= nchan;
+		s->maxdata	= 1;
+		s->insn_bits	= adl_pci7x3x_di_insn_bits;
+		s->range_table	= &range_digital;
+
+		s->private	= (void *)PCI7X3X_DIO_REG;
+
+		subdev++;
+
+		nchan = board->di_nchan - nchan;
+		if (nchan) {
+			s = &dev->subdevices[subdev];
+			/* Isolated digital inputs 32 to 63 */
+			s->type		= COMEDI_SUBD_DI;
+			s->subdev_flags	= SDF_READABLE;
+			s->n_chan	= nchan;
+			s->maxdata	= 1;
+			s->insn_bits	= adl_pci7x3x_di_insn_bits;
+			s->range_table	= &range_digital;
+
+			s->private	= (void *)PCI743X_DIO_REG;
+
+			subdev++;
+		}
+	}
+
+	if (board->do_nchan) {
+		nchan = min(board->do_nchan, 32);
+
+		s = &dev->subdevices[subdev];
+		/* Isolated digital outputs 0 to 15/31 */
+		s->type		= COMEDI_SUBD_DO;
+		s->subdev_flags	= SDF_WRITABLE;
+		s->n_chan	= nchan;
+		s->maxdata	= 1;
+		s->insn_bits	= adl_pci7x3x_do_insn_bits;
+		s->range_table	= &range_digital;
+
+		s->private	= (void *)PCI7X3X_DIO_REG;
+
+		subdev++;
+
+		nchan = board->do_nchan - nchan;
+		if (nchan) {
+			s = &dev->subdevices[subdev];
+			/* Isolated digital outputs 32 to 63 */
+			s->type		= COMEDI_SUBD_DO;
+			s->subdev_flags	= SDF_WRITABLE;
+			s->n_chan	= nchan;
+			s->maxdata	= 1;
+			s->insn_bits	= adl_pci7x3x_do_insn_bits;
+			s->range_table	= &range_digital;
+
+			s->private	= (void *)PCI743X_DIO_REG;
+
+			subdev++;
+		}
+	}
+
+	dev_info(dev->class_dev, "%s attached (%d inputs/%d outputs)\n",
+		dev->board_name, board->di_nchan, board->do_nchan);
+
+	return 0;
+}
+
+static void adl_pci7x3x_detach(struct comedi_device *dev)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
+	}
+}
+
+static struct comedi_driver adl_pci7x3x_driver = {
+	.driver_name	= "adl_pci7x3x",
+	.module		= THIS_MODULE,
+	.attach_pci	= adl_pci7x3x_attach_pci,
+	.detach		= adl_pci7x3x_detach,
+};
+
+static int __devinit adl_pci7x3x_pci_probe(struct pci_dev *dev,
+					   const struct pci_device_id *ent)
+{
+	return comedi_pci_auto_config(dev, &adl_pci7x3x_driver);
+}
+
+static void __devexit adl_pci7x3x_pci_remove(struct pci_dev *dev)
+{
+	comedi_pci_auto_unconfig(dev);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(adl_pci7x3x_pci_table) = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7230) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7233) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7234) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7433) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7434) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, adl_pci7x3x_pci_table);
+
+static struct pci_driver adl_pci7x3x_pci_driver = {
+	.name		= "adl_pci7x3x",
+	.id_table	= adl_pci7x3x_pci_table,
+	.probe		= adl_pci7x3x_pci_probe,
+	.remove		= __devexit_p(adl_pci7x3x_pci_remove),
+};
+module_comedi_pci_driver(adl_pci7x3x_driver, adl_pci7x3x_pci_driver);
+
+MODULE_DESCRIPTION("ADLINK PCI-723x/743x Isolated Digital I/O boards");
+MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c
index 247ef00a7c6..05e06e7ba9f 100644
--- a/drivers/staging/comedi/drivers/adl_pci8164.c
+++ b/drivers/staging/comedi/drivers/adl_pci8164.c
@@ -27,11 +27,7 @@ Author: Michel Lachaine <mike@mikelachaine.ca>
 Status: experimental
 Updated: Mon, 14 Apr 2008 15:10:32 +0100
 
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
+Configuration Options: not applicable, uses PCI auto config
 */
 
 #include "../comedidev.h"
@@ -216,61 +212,26 @@ static int adl_pci8164_insn_write_buf1(struct comedi_device *dev,
 	return 2;
 }
 
-static struct pci_dev *adl_pci8164_find_pci(struct comedi_device *dev,
-					    struct comedi_devconfig *it)
+static int adl_pci8164_attach_pci(struct comedi_device *dev,
+				  struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor != PCI_VENDOR_ID_ADLINK ||
-		    pcidev->device != PCI_DEVICE_ID_PCI8164)
-			continue;
-		if (bus || slot) {
-			/* requested particular bus/slot */
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		return pcidev;
-	}
-	printk(KERN_ERR
-		"comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
-		dev->minor, bus, slot);
-	return NULL;
-}
-
-static int adl_pci8164_attach(struct comedi_device *dev,
-			      struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
 	int ret;
 
-	printk(KERN_INFO "comedi: attempt to attach...\n");
-	printk(KERN_INFO "comedi%d: adl_pci8164\n", dev->minor);
+	comedi_set_hw_dev(dev, &pcidev->dev);
 
-	dev->board_name = "pci8164";
+	dev->board_name = dev->driver->driver_name;
 
-	ret = comedi_alloc_subdevices(dev, 4);
+	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
 		return ret;
-
-	pcidev = adl_pci8164_find_pci(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	if (comedi_pci_enable(pcidev, "adl_pci8164") < 0) {
-		printk(KERN_ERR "comedi%d: Failed to enable "
-		"PCI device and request regions\n", dev->minor);
-		return -EIO;
-	}
 	dev->iobase = pci_resource_start(pcidev, 2);
-	printk(KERN_DEBUG "comedi: base addr %4lx\n", dev->iobase);
 
-	s = dev->subdevices + 0;
+	ret = comedi_alloc_subdevices(dev, 4);
+	if (ret)
+		return ret;
+
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
@@ -280,7 +241,7 @@ static int adl_pci8164_attach(struct comedi_device *dev,
 	s->insn_read = adl_pci8164_insn_read_msts;
 	s->insn_write = adl_pci8164_insn_write_cmd;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
@@ -290,7 +251,7 @@ static int adl_pci8164_attach(struct comedi_device *dev,
 	s->insn_read = adl_pci8164_insn_read_ssts;
 	s->insn_write = adl_pci8164_insn_write_otp;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
@@ -300,7 +261,7 @@ static int adl_pci8164_attach(struct comedi_device *dev,
 	s->insn_read = adl_pci8164_insn_read_buf0;
 	s->insn_write = adl_pci8164_insn_write_buf0;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
@@ -310,7 +271,8 @@ static int adl_pci8164_attach(struct comedi_device *dev,
 	s->insn_read = adl_pci8164_insn_read_buf1;
 	s->insn_write = adl_pci8164_insn_write_buf1;
 
-	printk(KERN_INFO "comedi: attached\n");
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
+
 	return 0;
 }
 
@@ -321,14 +283,13 @@ static void adl_pci8164_detach(struct comedi_device *dev)
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver adl_pci8164_driver = {
 	.driver_name	= "adl_pci8164",
 	.module		= THIS_MODULE,
-	.attach		= adl_pci8164_attach,
+	.attach_pci	= adl_pci8164_attach_pci,
 	.detach		= adl_pci8164_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index a31dae6e07d..a87192ac284 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -47,14 +47,7 @@ Supports:
 The scanned channels must be consecutive and start from 0. They must
 all have the same range and aref.
 
-Configuration options:
-
-	[0] - PCI bus number (optional)
-	[1] - PCI slot number (optional)
-
-If bus/slot is not specified, the first available PCI
-device will be used.
-
+Configuration options: not applicable, uses PCI auto config
 */
 
 /*
@@ -86,29 +79,9 @@ TODO:
 #define PCI9111_DRIVER_NAME	"adl_pci9111"
 #define PCI9111_HR_DEVICE_ID	0x9111
 
-/*  TODO: Add other pci9111 board id */
-
-#define PCI9111_IO_RANGE	0x0100
-
 #define PCI9111_FIFO_HALF_SIZE	512
 
-#define PCI9111_AI_CHANNEL_NBR			16
-
-#define PCI9111_AI_RESOLUTION			12
-#define PCI9111_AI_RESOLUTION_MASK		0x0FFF
-#define PCI9111_AI_RESOLUTION_2_CMP_BIT		0x0800
-
-#define PCI9111_HR_AI_RESOLUTION		16
-#define PCI9111_HR_AI_RESOLUTION_MASK		0xFFFF
-#define PCI9111_HR_AI_RESOLUTION_2_CMP_BIT	0x8000
-
 #define PCI9111_AI_ACQUISITION_PERIOD_MIN_NS	10000
-#define PCI9111_AO_CHANNEL_NBR			1
-#define	PCI9111_AO_RESOLUTION			12
-#define PCI9111_AO_RESOLUTION_MASK		0x0FFF
-#define PCI9111_DI_CHANNEL_NBR			16
-#define	PCI9111_DO_CHANNEL_NBR			16
-#define PCI9111_DO_MASK				0xFFFF
 
 #define PCI9111_RANGE_SETTING_DELAY		10
 #define PCI9111_AI_INSTANT_READ_UDELAY_US	2
@@ -116,233 +89,49 @@ TODO:
 
 #define PCI9111_8254_CLOCK_PERIOD_NS		500
 
-#define PCI9111_8254_COUNTER_0			0x00
-#define PCI9111_8254_COUNTER_1			0x40
-#define PCI9111_8254_COUNTER_2			0x80
-#define PCI9111_8254_COUNTER_LATCH		0x00
-#define PCI9111_8254_READ_LOAD_LSB_ONLY		0x10
-#define PCI9111_8254_READ_LOAD_MSB_ONLY		0x20
-#define PCI9111_8254_READ_LOAD_LSB_MSB		0x30
-#define PCI9111_8254_MODE_0			0x00
-#define PCI9111_8254_MODE_1			0x02
-#define PCI9111_8254_MODE_2			0x04
-#define PCI9111_8254_MODE_3			0x06
-#define PCI9111_8254_MODE_4			0x08
-#define PCI9111_8254_MODE_5			0x0A
-#define PCI9111_8254_BINARY_COUNTER		0x00
-#define PCI9111_8254_BCD_COUNTER		0x01
-
-/* IO address map */
-
-#define PCI9111_REGISTER_AD_FIFO_VALUE			0x00 /* AD Data stored
-								in FIFO */
-#define PCI9111_REGISTER_DA_OUTPUT			0x00
-#define PCI9111_REGISTER_DIGITAL_IO			0x02
-#define PCI9111_REGISTER_EXTENDED_IO_PORTS		0x04
-#define PCI9111_REGISTER_AD_CHANNEL_CONTROL		0x06 /* Channel
-								selection */
-#define PCI9111_REGISTER_AD_CHANNEL_READBACK		0x06
-#define PCI9111_REGISTER_INPUT_SIGNAL_RANGE		0x08
-#define PCI9111_REGISTER_RANGE_STATUS_READBACK		0x08
-#define PCI9111_REGISTER_TRIGGER_MODE_CONTROL		0x0A
-#define PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK	0x0A
-#define PCI9111_REGISTER_SOFTWARE_TRIGGER		0x0E
-#define PCI9111_REGISTER_INTERRUPT_CONTROL		0x0C
-#define PCI9111_REGISTER_8254_COUNTER_0			0x40
-#define PCI9111_REGISTER_8254_COUNTER_1			0x42
-#define PCI9111_REGISTER_8254_COUNTER_2			0X44
-#define PCI9111_REGISTER_8254_CONTROL			0x46
-#define PCI9111_REGISTER_INTERRUPT_CLEAR		0x48
-
-#define PCI9111_TRIGGER_MASK				0x0F
-#define PCI9111_PTRG_OFF				(0 << 3)
-#define PCI9111_PTRG_ON					(1 << 3)
-#define PCI9111_EITS_EXTERNAL				(1 << 2)
-#define PCI9111_EITS_INTERNAL				(0 << 2)
-#define PCI9111_TPST_SOFTWARE_TRIGGER			(0 << 1)
-#define PCI9111_TPST_TIMER_PACER			(1 << 1)
-#define PCI9111_ASCAN_ON				(1 << 0)
-#define PCI9111_ASCAN_OFF				(0 << 0)
-
-#define PCI9111_ISC0_SET_IRQ_ON_ENDING_OF_AD_CONVERSION (0 << 0)
-#define PCI9111_ISC0_SET_IRQ_ON_FIFO_HALF_FULL		(1 << 0)
-#define PCI9111_ISC1_SET_IRQ_ON_TIMER_TICK		(0 << 1)
-#define PCI9111_ISC1_SET_IRQ_ON_EXT_TRG			(1 << 1)
-#define PCI9111_FFEN_SET_FIFO_ENABLE			(0 << 2)
-#define PCI9111_FFEN_SET_FIFO_DISABLE			(1 << 2)
-
-#define PCI9111_CHANNEL_MASK				0x0F
-
-#define PCI9111_RANGE_MASK				0x07
-#define PCI9111_FIFO_EMPTY_MASK				0x10
-#define PCI9111_FIFO_HALF_FULL_MASK			0x20
-#define PCI9111_FIFO_FULL_MASK				0x40
-#define PCI9111_AD_BUSY_MASK				0x80
-
-#define PCI9111_IO_BASE (dev->iobase)
-
 /*
- * Define inlined function
+ * IO address map and bit defines
  */
-
-#define pci9111_trigger_and_autoscan_get() \
-	(inb(PCI9111_IO_BASE+PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK)&0x0F)
-
-#define pci9111_trigger_and_autoscan_set(flags) \
-	outb(flags, PCI9111_IO_BASE+PCI9111_REGISTER_TRIGGER_MODE_CONTROL)
-
-#define pci9111_interrupt_and_fifo_get() \
-	((inb(PCI9111_IO_BASE+PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK) \
-		>> 4) & 0x03)
-
-#define pci9111_interrupt_and_fifo_set(flags) \
-	outb(flags, PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL)
-
-#define pci9111_interrupt_clear() \
-	outb(0, PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CLEAR)
-
-#define pci9111_software_trigger() \
-	outb(0, PCI9111_IO_BASE+PCI9111_REGISTER_SOFTWARE_TRIGGER)
-
-#define pci9111_fifo_reset() do { \
-	outb(PCI9111_FFEN_SET_FIFO_ENABLE, \
-		PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL); \
-	outb(PCI9111_FFEN_SET_FIFO_DISABLE, \
-		PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL); \
-	outb(PCI9111_FFEN_SET_FIFO_ENABLE, \
-		PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL); \
-	} while (0)
-
-#define pci9111_is_fifo_full() \
-	((inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)& \
-		PCI9111_FIFO_FULL_MASK) == 0)
-
-#define pci9111_is_fifo_half_full() \
-	((inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)& \
-		PCI9111_FIFO_HALF_FULL_MASK) == 0)
-
-#define pci9111_is_fifo_empty() \
-	((inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)& \
-		PCI9111_FIFO_EMPTY_MASK) == 0)
-
-#define pci9111_ai_channel_set(channel) \
-	outb((channel)&PCI9111_CHANNEL_MASK, \
-		PCI9111_IO_BASE+PCI9111_REGISTER_AD_CHANNEL_CONTROL)
-
-#define pci9111_ai_channel_get() \
-	(inb(PCI9111_IO_BASE+PCI9111_REGISTER_AD_CHANNEL_READBACK) \
-		&PCI9111_CHANNEL_MASK)
-
-#define pci9111_ai_range_set(range) \
-	outb((range)&PCI9111_RANGE_MASK, \
-		PCI9111_IO_BASE+PCI9111_REGISTER_INPUT_SIGNAL_RANGE)
-
-#define pci9111_ai_range_get() \
-	(inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK) \
-		&PCI9111_RANGE_MASK)
-
-#define pci9111_ai_get_data() \
-	(((inw(PCI9111_IO_BASE+PCI9111_REGISTER_AD_FIFO_VALUE)>>4) \
-		&PCI9111_AI_RESOLUTION_MASK) \
-			^ PCI9111_AI_RESOLUTION_2_CMP_BIT)
-
-#define pci9111_hr_ai_get_data() \
-	((inw(PCI9111_IO_BASE+PCI9111_REGISTER_AD_FIFO_VALUE) \
-		&PCI9111_HR_AI_RESOLUTION_MASK) \
-			^ PCI9111_HR_AI_RESOLUTION_2_CMP_BIT)
-
-#define pci9111_ao_set_data(data) \
-	outw(data&PCI9111_AO_RESOLUTION_MASK, \
-		PCI9111_IO_BASE+PCI9111_REGISTER_DA_OUTPUT)
-
-#define pci9111_di_get_bits() \
-	inw(PCI9111_IO_BASE+PCI9111_REGISTER_DIGITAL_IO)
-
-#define pci9111_do_set_bits(bits) \
-	outw(bits, PCI9111_IO_BASE+PCI9111_REGISTER_DIGITAL_IO)
-
-#define pci9111_8254_control_set(flags) \
-	outb(flags, PCI9111_IO_BASE+PCI9111_REGISTER_8254_CONTROL)
-
-#define pci9111_8254_counter_0_set(data) \
-	do { \
-		outb(data & 0xFF, \
-			PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_0); \
-		outb((data >> 8) & 0xFF, \
-			PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_0); \
-	} while (0)
-
-#define pci9111_8254_counter_1_set(data) \
-	do { \
-		outb(data & 0xFF, \
-			PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_1); \
-		outb((data >> 8) & 0xFF, \
-			PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_1); \
-	} while (0)
-
-#define pci9111_8254_counter_2_set(data) \
-	do { \
-		outb(data & 0xFF, \
-			PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_2); \
-		outb((data >> 8) & 0xFF, \
-			PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_2); \
-	} while (0)
-
-static const struct comedi_lrange pci9111_hr_ai_range = {
+#define PCI9111_AI_FIFO_REG		0x00
+#define PCI9111_AO_REG			0x00
+#define PCI9111_DIO_REG			0x02
+#define PCI9111_EDIO_REG		0x04
+#define PCI9111_AI_CHANNEL_REG		0x06
+#define PCI9111_AI_RANGE_STAT_REG	0x08
+#define PCI9111_AI_STAT_AD_BUSY		(1 << 7)
+#define PCI9111_AI_STAT_FF_FF		(1 << 6)
+#define PCI9111_AI_STAT_FF_HF		(1 << 5)
+#define PCI9111_AI_STAT_FF_EF		(1 << 4)
+#define PCI9111_AI_RANGE_MASK		(7 << 0)
+#define PCI9111_AI_TRIG_CTRL_REG	0x0a
+#define PCI9111_AI_TRIG_CTRL_TRGEVENT	(1 << 5)
+#define PCI9111_AI_TRIG_CTRL_POTRG	(1 << 4)
+#define PCI9111_AI_TRIG_CTRL_PTRG	(1 << 3)
+#define PCI9111_AI_TRIG_CTRL_ETIS	(1 << 2)
+#define PCI9111_AI_TRIG_CTRL_TPST	(1 << 1)
+#define PCI9111_AI_TRIG_CTRL_ASCAN	(1 << 0)
+#define PCI9111_INT_CTRL_REG		0x0c
+#define PCI9111_INT_CTRL_ISC2		(1 << 3)
+#define PCI9111_INT_CTRL_FFEN		(1 << 2)
+#define PCI9111_INT_CTRL_ISC1		(1 << 1)
+#define PCI9111_INT_CTRL_ISC0		(1 << 0)
+#define PCI9111_SOFT_TRIG_REG		0x0e
+#define PCI9111_8254_BASE_REG		0x40
+#define PCI9111_INT_CLR_REG		0x48
+
+static const struct comedi_lrange pci9111_ai_range = {
 	5,
 	{
-	 BIP_RANGE(10),
-	 BIP_RANGE(5),
-	 BIP_RANGE(2.5),
-	 BIP_RANGE(1.25),
-	 BIP_RANGE(0.625)
-	 }
-};
-
-/*  */
-/*  Board specification structure */
-/*  */
-
-struct pci9111_board {
-	const char *name;	/*  driver name */
-	int device_id;
-	int ai_channel_nbr;	/*  num of A/D chans */
-	int ao_channel_nbr;	/*  num of D/A chans */
-	int ai_resolution;	/*  resolution of A/D */
-	int ai_resolution_mask;
-	int ao_resolution;	/*  resolution of D/A */
-	int ao_resolution_mask;
-	const struct comedi_lrange *ai_range_list;	/*  rangelist for A/D */
-	const struct comedi_lrange *ao_range_list;	/*  rangelist for D/A */
-	unsigned int ai_acquisition_period_min_ns;
-};
-
-static const struct pci9111_board pci9111_boards[] = {
-	{
-	 .name = "pci9111_hr",
-	 .device_id = PCI9111_HR_DEVICE_ID,
-	 .ai_channel_nbr = PCI9111_AI_CHANNEL_NBR,
-	 .ao_channel_nbr = PCI9111_AO_CHANNEL_NBR,
-	 .ai_resolution = PCI9111_HR_AI_RESOLUTION,
-	 .ai_resolution_mask = PCI9111_HR_AI_RESOLUTION_MASK,
-	 .ao_resolution = PCI9111_AO_RESOLUTION,
-	 .ao_resolution_mask = PCI9111_AO_RESOLUTION_MASK,
-	 .ai_range_list = &pci9111_hr_ai_range,
-	 .ao_range_list = &range_bipolar10,
-	 .ai_acquisition_period_min_ns = PCI9111_AI_ACQUISITION_PERIOD_MIN_NS}
+		BIP_RANGE(10),
+		BIP_RANGE(5),
+		BIP_RANGE(2.5),
+		BIP_RANGE(1.25),
+		BIP_RANGE(0.625)
+	}
 };
 
-#define pci9111_board_nbr \
-	(sizeof(pci9111_boards)/sizeof(struct pci9111_board))
-
-/*  Private data structure */
-
 struct pci9111_private_data {
-	unsigned long io_range;	/*  PCI6503 io range */
-
-	unsigned long lcr_io_base; /* Local configuration register base
-				    * address */
-	unsigned long lcr_io_range;
+	unsigned long lcr_io_base;
 
 	int stop_counter;
 	int stop_is_none;
@@ -352,23 +141,14 @@ struct pci9111_private_data {
 	unsigned int chunk_counter;
 	unsigned int chunk_num_samples;
 
-	int ao_readback;	/*  Last written analog output data */
+	int ao_readback;
 
-	unsigned int timer_divisor_1; /* Divisor values for the 8254 timer
-				       * pacer */
-	unsigned int timer_divisor_2;
-
-	int is_valid;		/*  Is device valid */
+	unsigned int div1;
+	unsigned int div2;
 
 	short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
 };
 
-#define dev_private	((struct pci9111_private_data *)dev->private)
-
-/*  ------------------------------------------------------------------ */
-/*  PLX9050 SECTION */
-/*  ------------------------------------------------------------------ */
-
 #define PLX9050_REGISTER_INTERRUPT_CONTROL 0x4c
 
 #define PLX9050_LINTI1_ENABLE		(1 << 0)
@@ -404,33 +184,19 @@ static void plx9050_interrupt_control(unsigned long io_base,
 	outb(flags, io_base + PLX9050_REGISTER_INTERRUPT_CONTROL);
 }
 
-/*  ------------------------------------------------------------------ */
-/*  MISCELLANEOUS SECTION */
-/*  ------------------------------------------------------------------ */
-
-/*  8254 timer */
-
 static void pci9111_timer_set(struct comedi_device *dev)
 {
-	pci9111_8254_control_set(PCI9111_8254_COUNTER_0 |
-				 PCI9111_8254_READ_LOAD_LSB_MSB |
-				 PCI9111_8254_MODE_0 |
-				 PCI9111_8254_BINARY_COUNTER);
+	struct pci9111_private_data *dev_private = dev->private;
+	unsigned long timer_base = dev->iobase + PCI9111_8254_BASE_REG;
 
-	pci9111_8254_control_set(PCI9111_8254_COUNTER_1 |
-				 PCI9111_8254_READ_LOAD_LSB_MSB |
-				 PCI9111_8254_MODE_2 |
-				 PCI9111_8254_BINARY_COUNTER);
-
-	pci9111_8254_control_set(PCI9111_8254_COUNTER_2 |
-				 PCI9111_8254_READ_LOAD_LSB_MSB |
-				 PCI9111_8254_MODE_2 |
-				 PCI9111_8254_BINARY_COUNTER);
+	i8254_set_mode(timer_base, 1, 0, I8254_MODE0 | I8254_BINARY);
+	i8254_set_mode(timer_base, 1, 1, I8254_MODE2 | I8254_BINARY);
+	i8254_set_mode(timer_base, 1, 2, I8254_MODE2 | I8254_BINARY);
 
 	udelay(1);
 
-	pci9111_8254_counter_2_set(dev_private->timer_divisor_2);
-	pci9111_8254_counter_1_set(dev_private->timer_divisor_1);
+	i8254_write(timer_base, 1, 2, dev_private->div2);
+	i8254_write(timer_base, 1, 1, dev_private->div1);
 }
 
 enum pci9111_trigger_sources {
@@ -444,47 +210,55 @@ static void pci9111_trigger_source_set(struct comedi_device *dev,
 {
 	int flags;
 
-	flags = pci9111_trigger_and_autoscan_get() & 0x09;
+	/* Read the current trigger mode control bits */
+	flags = inb(dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
+	/* Mask off the EITS and TPST bits */
+	flags &= 0x9;
 
 	switch (source) {
 	case software:
-		flags |= PCI9111_EITS_INTERNAL | PCI9111_TPST_SOFTWARE_TRIGGER;
 		break;
 
 	case timer_pacer:
-		flags |= PCI9111_EITS_INTERNAL | PCI9111_TPST_TIMER_PACER;
+		flags |= PCI9111_AI_TRIG_CTRL_TPST;
 		break;
 
 	case external:
-		flags |= PCI9111_EITS_EXTERNAL;
+		flags |= PCI9111_AI_TRIG_CTRL_ETIS;
 		break;
 	}
 
-	pci9111_trigger_and_autoscan_set(flags);
+	outb(flags, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
 }
 
 static void pci9111_pretrigger_set(struct comedi_device *dev, bool pretrigger)
 {
 	int flags;
 
-	flags = pci9111_trigger_and_autoscan_get() & 0x07;
+	/* Read the current trigger mode control bits */
+	flags = inb(dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
+	/* Mask off the PTRG bit */
+	flags &= 0x7;
 
 	if (pretrigger)
-		flags |= PCI9111_PTRG_ON;
+		flags |= PCI9111_AI_TRIG_CTRL_PTRG;
 
-	pci9111_trigger_and_autoscan_set(flags);
+	outb(flags, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
 }
 
 static void pci9111_autoscan_set(struct comedi_device *dev, bool autoscan)
 {
 	int flags;
 
-	flags = pci9111_trigger_and_autoscan_get() & 0x0e;
+	/* Read the current trigger mode control bits */
+	flags = inb(dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
+	/* Mask off the ASCAN bit */
+	flags &= 0xe;
 
 	if (autoscan)
-		flags |= PCI9111_ASCAN_ON;
+		flags |= PCI9111_AI_TRIG_CTRL_ASCAN;
 
-	pci9111_trigger_and_autoscan_set(flags);
+	outb(flags, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
 }
 
 enum pci9111_ISC0_sources {
@@ -503,30 +277,39 @@ static void pci9111_interrupt_source_set(struct comedi_device *dev,
 {
 	int flags;
 
-	flags = pci9111_interrupt_and_fifo_get() & 0x04;
+	/* Read the current interrupt control bits */
+	flags = inb(dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
+	/* Shift the bits so they are compatible with the write register */
+	flags >>= 4;
+	/* Mask off the ISCx bits */
+	flags &= 0xc0;
 
+	/* Now set the new ISCx bits */
 	if (irq_0_source == irq_on_fifo_half_full)
-		flags |= PCI9111_ISC0_SET_IRQ_ON_FIFO_HALF_FULL;
+		flags |= PCI9111_INT_CTRL_ISC0;
 
 	if (irq_1_source == irq_on_external_trigger)
-		flags |= PCI9111_ISC1_SET_IRQ_ON_EXT_TRG;
+		flags |= PCI9111_INT_CTRL_ISC1;
 
-	pci9111_interrupt_and_fifo_set(flags);
+	outb(flags, dev->iobase + PCI9111_INT_CTRL_REG);
 }
 
-/*  ------------------------------------------------------------------ */
-/*  HARDWARE TRIGGERED ANALOG INPUT SECTION */
-/*  ------------------------------------------------------------------ */
-
-/*  Cancel analog input autoscan */
+static void pci9111_fifo_reset(struct comedi_device *dev)
+{
+	unsigned long int_ctrl_reg = dev->iobase + PCI9111_INT_CTRL_REG;
 
-#undef AI_DO_CMD_DEBUG
+	/* To reset the FIFO, set FFEN sequence as 0 -> 1 -> 0 */
+	outb(0, int_ctrl_reg);
+	outb(PCI9111_INT_CTRL_FFEN, int_ctrl_reg);
+	outb(0, int_ctrl_reg);
+}
 
 static int pci9111_ai_cancel(struct comedi_device *dev,
 			     struct comedi_subdevice *s)
 {
-	/*  Disable interrupts */
+	struct pci9111_private_data *dev_private = dev->private;
 
+	/*  Disable interrupts */
 	plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
 				  true, false);
 
@@ -534,97 +317,65 @@ static int pci9111_ai_cancel(struct comedi_device *dev,
 
 	pci9111_autoscan_set(dev, false);
 
-	pci9111_fifo_reset();
-
-#ifdef AI_DO_CMD_DEBUG
-	printk(PCI9111_DRIVER_NAME ": ai_cancel\n");
-#endif
+	pci9111_fifo_reset(dev);
 
 	return 0;
 }
 
-/*  Test analog input command */
-
-#define pci9111_check_trigger_src(src, flags)	do {			\
-		tmp = src;						\
-		src &= flags;						\
-		if (!src || tmp != src)					\
-			error++;					\
-	} while (false);
-
-static int
-pci9111_ai_do_cmd_test(struct comedi_device *dev,
-		       struct comedi_subdevice *s, struct comedi_cmd *cmd)
+static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
+				  struct comedi_subdevice *s,
+				  struct comedi_cmd *cmd)
 {
+	struct pci9111_private_data *dev_private = dev->private;
 	int tmp;
 	int error = 0;
 	int range, reference;
 	int i;
-	struct pci9111_board *board = (struct pci9111_board *)dev->board_ptr;
 
-	/*  Step 1 : check if trigger are trivialy valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	pci9111_check_trigger_src(cmd->start_src, TRIG_NOW);
-	pci9111_check_trigger_src(cmd->scan_begin_src,
-				  TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
-	pci9111_check_trigger_src(cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	pci9111_check_trigger_src(cmd->scan_end_src, TRIG_COUNT);
-	pci9111_check_trigger_src(cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	error |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	error |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
+	error |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	error |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	error |= cfc_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_NONE);
 
 	if (error)
 		return 1;
 
-	/*  step 2 : make sure trigger sources are unique and mutually
-	 *  compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW)
-		error++;
+	error |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	error |= cfc_check_trigger_is_unique(cmd->convert_src);
+	error |= cfc_check_trigger_is_unique(cmd->stop_src);
 
-	if ((cmd->scan_begin_src != TRIG_TIMER) &&
-	    (cmd->scan_begin_src != TRIG_FOLLOW) &&
-	    (cmd->scan_begin_src != TRIG_EXT))
-		error++;
+	/* Step 2b : and mutually compatible */
 
-	if ((cmd->convert_src != TRIG_TIMER) && (cmd->convert_src != TRIG_EXT))
-		error++;
 	if ((cmd->convert_src == TRIG_TIMER) &&
 	    !((cmd->scan_begin_src == TRIG_TIMER) ||
 	      (cmd->scan_begin_src == TRIG_FOLLOW)))
-		error++;
+		error |= -EINVAL;
 	if ((cmd->convert_src == TRIG_EXT) &&
 	    !((cmd->scan_begin_src == TRIG_EXT) ||
 	      (cmd->scan_begin_src == TRIG_FOLLOW)))
-		error++;
-
-
-	if (cmd->scan_end_src != TRIG_COUNT)
-		error++;
-	if ((cmd->stop_src != TRIG_COUNT) && (cmd->stop_src != TRIG_NONE))
-		error++;
+		error |= -EINVAL;
 
 	if (error)
 		return 2;
 
 	/*  Step 3 : make sure arguments are trivialy compatible */
 
-	if (cmd->chanlist_len < 1) {
-		cmd->chanlist_len = 1;
-		error++;
-	}
-
-	if (cmd->chanlist_len > board->ai_channel_nbr) {
-		cmd->chanlist_len = board->ai_channel_nbr;
-		error++;
-	}
-
 	if ((cmd->start_src == TRIG_NOW) && (cmd->start_arg != 0)) {
 		cmd->start_arg = 0;
 		error++;
 	}
 
 	if ((cmd->convert_src == TRIG_TIMER) &&
-	    (cmd->convert_arg < board->ai_acquisition_period_min_ns)) {
-		cmd->convert_arg = board->ai_acquisition_period_min_ns;
+	    (cmd->convert_arg < PCI9111_AI_ACQUISITION_PERIOD_MIN_NS)) {
+		cmd->convert_arg = PCI9111_AI_ACQUISITION_PERIOD_MIN_NS;
 		error++;
 	}
 	if ((cmd->convert_src == TRIG_EXT) && (cmd->convert_arg != 0)) {
@@ -633,8 +384,8 @@ pci9111_ai_do_cmd_test(struct comedi_device *dev,
 	}
 
 	if ((cmd->scan_begin_src == TRIG_TIMER) &&
-	    (cmd->scan_begin_arg < board->ai_acquisition_period_min_ns)) {
-		cmd->scan_begin_arg = board->ai_acquisition_period_min_ns;
+	    (cmd->scan_begin_arg < PCI9111_AI_ACQUISITION_PERIOD_MIN_NS)) {
+		cmd->scan_begin_arg = PCI9111_AI_ACQUISITION_PERIOD_MIN_NS;
 		error++;
 	}
 	if ((cmd->scan_begin_src == TRIG_FOLLOW)
@@ -670,9 +421,9 @@ pci9111_ai_do_cmd_test(struct comedi_device *dev,
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
 		i8253_cascade_ns_to_timer_2div(PCI9111_8254_CLOCK_PERIOD_NS,
-					       &(dev_private->timer_divisor_1),
-					       &(dev_private->timer_divisor_2),
-					       &(cmd->convert_arg),
+					       &dev_private->div1,
+					       &dev_private->div2,
+					       &cmd->convert_arg,
 					       cmd->flags & TRIG_ROUND_MASK);
 		if (tmp != cmd->convert_arg)
 			error++;
@@ -733,14 +484,6 @@ pci9111_ai_do_cmd_test(struct comedi_device *dev,
 					error++;
 				}
 			}
-		} else {
-			if ((CR_CHAN(cmd->chanlist[0]) >
-			     (board->ai_channel_nbr - 1))
-			    || (CR_CHAN(cmd->chanlist[0]) < 0)) {
-				comedi_error(dev,
-					     "channel number is out of limits\n");
-				error++;
-			}
 		}
 	}
 
@@ -751,12 +494,11 @@ pci9111_ai_do_cmd_test(struct comedi_device *dev,
 
 }
 
-/*  Analog input command */
-
 static int pci9111_ai_do_cmd(struct comedi_device *dev,
-			     struct comedi_subdevice *subdevice)
+			     struct comedi_subdevice *s)
 {
-	struct comedi_cmd *async_cmd = &subdevice->async->cmd;
+	struct pci9111_private_data *dev_private = dev->private;
+	struct comedi_cmd *async_cmd = &s->async->cmd;
 
 	if (!dev->irq) {
 		comedi_error(dev,
@@ -768,17 +510,20 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev,
 	/*  TODO: handle the case of an external multiplexer */
 
 	if (async_cmd->chanlist_len > 1) {
-		pci9111_ai_channel_set((async_cmd->chanlist_len) - 1);
+		outb(async_cmd->chanlist_len - 1,
+			dev->iobase + PCI9111_AI_CHANNEL_REG);
 		pci9111_autoscan_set(dev, true);
 	} else {
-		pci9111_ai_channel_set(CR_CHAN(async_cmd->chanlist[0]));
+		outb(CR_CHAN(async_cmd->chanlist[0]),
+			dev->iobase + PCI9111_AI_CHANNEL_REG);
 		pci9111_autoscan_set(dev, false);
 	}
 
 	/*  Set gain */
 	/*  This is the same gain on every channel */
 
-	pci9111_ai_range_set(CR_RANGE(async_cmd->chanlist[0]));
+	outb(CR_RANGE(async_cmd->chanlist[0]) & PCI9111_AI_RANGE_MASK,
+		dev->iobase + PCI9111_AI_RANGE_STAT_REG);
 
 	/* Set counter */
 
@@ -804,21 +549,9 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev,
 	dev_private->scan_delay = 0;
 	switch (async_cmd->convert_src) {
 	case TRIG_TIMER:
-		i8253_cascade_ns_to_timer_2div(PCI9111_8254_CLOCK_PERIOD_NS,
-					       &(dev_private->timer_divisor_1),
-					       &(dev_private->timer_divisor_2),
-					       &(async_cmd->convert_arg),
-					       async_cmd->
-					       flags & TRIG_ROUND_MASK);
-#ifdef AI_DO_CMD_DEBUG
-		printk(PCI9111_DRIVER_NAME ": divisors = %d, %d\n",
-		       dev_private->timer_divisor_1,
-		       dev_private->timer_divisor_2);
-#endif
-
 		pci9111_trigger_source_set(dev, software);
 		pci9111_timer_set(dev);
-		pci9111_fifo_reset();
+		pci9111_fifo_reset(dev);
 		pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
 					     irq_on_timer_tick);
 		pci9111_trigger_source_set(dev, timer_pacer);
@@ -837,7 +570,7 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev,
 	case TRIG_EXT:
 
 		pci9111_trigger_source_set(dev, external);
-		pci9111_fifo_reset();
+		pci9111_fifo_reset(dev);
 		pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
 					     irq_on_timer_tick);
 		plx9050_interrupt_control(dev_private->lcr_io_base, true, true,
@@ -856,23 +589,6 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev,
 	dev_private->chunk_num_samples =
 	    dev_private->chanlist_len * (1 + dev_private->scan_delay);
 
-#ifdef AI_DO_CMD_DEBUG
-	printk(PCI9111_DRIVER_NAME ": start interruptions!\n");
-	printk(PCI9111_DRIVER_NAME ": trigger source = %2x\n",
-	       pci9111_trigger_and_autoscan_get());
-	printk(PCI9111_DRIVER_NAME ": irq source     = %2x\n",
-	       pci9111_interrupt_and_fifo_get());
-	printk(PCI9111_DRIVER_NAME ": ai_do_cmd\n");
-	printk(PCI9111_DRIVER_NAME ": stop counter   = %d\n",
-	       dev_private->stop_counter);
-	printk(PCI9111_DRIVER_NAME ": scan delay     = %d\n",
-	       dev_private->scan_delay);
-	printk(PCI9111_DRIVER_NAME ": chanlist_len   = %d\n",
-	       dev_private->chanlist_len);
-	printk(PCI9111_DRIVER_NAME ": chunk num samples = %d\n",
-	       dev_private->chunk_num_samples);
-#endif
-
 	return 0;
 }
 
@@ -881,34 +597,24 @@ static void pci9111_ai_munge(struct comedi_device *dev,
 			     unsigned int num_bytes,
 			     unsigned int start_chan_index)
 {
-	unsigned int i, num_samples = num_bytes / sizeof(short);
 	short *array = data;
-	int resolution =
-	    ((struct pci9111_board *)dev->board_ptr)->ai_resolution;
-
-	for (i = 0; i < num_samples; i++) {
-		if (resolution == PCI9111_HR_AI_RESOLUTION)
-			array[i] =
-			    (array[i] & PCI9111_HR_AI_RESOLUTION_MASK) ^
-			    PCI9111_HR_AI_RESOLUTION_2_CMP_BIT;
-		else
-			array[i] =
-			    ((array[i] >> 4) & PCI9111_AI_RESOLUTION_MASK) ^
-			    PCI9111_AI_RESOLUTION_2_CMP_BIT;
-	}
+	unsigned int maxdata = s->maxdata;
+	unsigned int invert = (maxdata + 1) >> 1;
+	unsigned int shift = (maxdata == 0xffff) ? 0 : 4;
+	unsigned int num_samples = num_bytes / sizeof(short);
+	unsigned int i;
+
+	for (i = 0; i < num_samples; i++)
+		array[i] = ((array[i] >> shift) & maxdata) ^ invert;
 }
 
-/*  ------------------------------------------------------------------ */
-/*  INTERRUPT SECTION */
-/*  ------------------------------------------------------------------ */
-
-#undef INTERRUPT_DEBUG
-
 static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 {
 	struct comedi_device *dev = p_device;
-	struct comedi_subdevice *subdevice = dev->read_subdev;
+	struct pci9111_private_data *dev_private = dev->private;
+	struct comedi_subdevice *s = dev->read_subdev;
 	struct comedi_async *async;
+	unsigned int status;
 	unsigned long irq_flags;
 	unsigned char intcsr;
 
@@ -918,7 +624,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 		return IRQ_NONE;
 	}
 
-	async = subdevice->async;
+	async = s->async;
 
 	spin_lock_irqsave(&dev->spinlock, irq_flags);
 
@@ -940,37 +646,37 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 	    (PLX9050_LINTI1_ENABLE | PLX9050_LINTI1_STATUS)) {
 		/*  Interrupt comes from fifo_half-full signal */
 
-		if (pci9111_is_fifo_full()) {
+		status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
+
+		/* '0' means FIFO is full, data may have been lost */
+		if (!(status & PCI9111_AI_STAT_FF_FF)) {
 			spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 			comedi_error(dev, PCI9111_DRIVER_NAME " fifo overflow");
-			pci9111_interrupt_clear();
-			pci9111_ai_cancel(dev, subdevice);
+			outb(0, dev->iobase + PCI9111_INT_CLR_REG);
+			pci9111_ai_cancel(dev, s);
 			async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
-			comedi_event(dev, subdevice);
+			comedi_event(dev, s);
 
 			return IRQ_HANDLED;
 		}
 
-		if (pci9111_is_fifo_half_full()) {
+		/* '0' means FIFO is half-full */
+		if (!(status & PCI9111_AI_STAT_FF_HF)) {
 			unsigned int num_samples;
 			unsigned int bytes_written = 0;
 
-#ifdef INTERRUPT_DEBUG
-			printk(PCI9111_DRIVER_NAME ": fifo is half full\n");
-#endif
-
 			num_samples =
 			    PCI9111_FIFO_HALF_SIZE >
 			    dev_private->stop_counter
 			    && !dev_private->
 			    stop_is_none ? dev_private->stop_counter :
 			    PCI9111_FIFO_HALF_SIZE;
-			insw(PCI9111_IO_BASE + PCI9111_REGISTER_AD_FIFO_VALUE,
+			insw(dev->iobase + PCI9111_AI_FIFO_REG,
 			     dev_private->ai_bounce_buffer, num_samples);
 
 			if (dev_private->scan_delay < 1) {
 				bytes_written =
-				    cfc_write_array_to_buffer(subdevice,
+				    cfc_write_array_to_buffer(s,
 							      dev_private->
 							      ai_bounce_buffer,
 							      num_samples *
@@ -994,7 +700,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 
 						bytes_written +=
 						    cfc_write_array_to_buffer
-						    (subdevice,
+						    (s,
 						     dev_private->ai_bounce_buffer
 						     + position,
 						     to_read * sizeof(short));
@@ -1029,168 +735,135 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 
 	if ((dev_private->stop_counter == 0) && (!dev_private->stop_is_none)) {
 		async->events |= COMEDI_CB_EOA;
-		pci9111_ai_cancel(dev, subdevice);
+		pci9111_ai_cancel(dev, s);
 	}
 
-	/* Very important, otherwise another interrupt request will be inserted
-	 * and will cause driver hangs on processing interrupt event. */
-
-	pci9111_interrupt_clear();
+	outb(0, dev->iobase + PCI9111_INT_CLR_REG);
 
 	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
-	comedi_event(dev, subdevice);
+	comedi_event(dev, s);
 
 	return IRQ_HANDLED;
 }
 
-/*  ------------------------------------------------------------------ */
-/*  INSTANT ANALOG INPUT OUTPUT SECTION */
-/*  ------------------------------------------------------------------ */
-
-/*  analog instant input */
-
-#undef AI_INSN_DEBUG
-
 static int pci9111_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *subdevice,
+				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-	int resolution =
-	    ((struct pci9111_board *)dev->board_ptr)->ai_resolution;
-
-	int timeout, i;
-
-#ifdef AI_INSN_DEBUG
-	printk(PCI9111_DRIVER_NAME ": ai_insn set c/r/n = %2x/%2x/%2x\n",
-	       CR_CHAN((&insn->chanspec)[0]),
-	       CR_RANGE((&insn->chanspec)[0]), insn->n);
-#endif
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int range = CR_RANGE(insn->chanspec);
+	unsigned int maxdata = s->maxdata;
+	unsigned int invert = (maxdata + 1) >> 1;
+	unsigned int shift = (maxdata == 0xffff) ? 0 : 4;
+	unsigned int status;
+	int timeout;
+	int i;
 
-	pci9111_ai_channel_set(CR_CHAN((&insn->chanspec)[0]));
+	outb(chan, dev->iobase + PCI9111_AI_CHANNEL_REG);
 
-	if ((pci9111_ai_range_get()) != CR_RANGE((&insn->chanspec)[0]))
-		pci9111_ai_range_set(CR_RANGE((&insn->chanspec)[0]));
+	status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
+	if ((status & PCI9111_AI_RANGE_MASK) != range) {
+		outb(range & PCI9111_AI_RANGE_MASK,
+			dev->iobase + PCI9111_AI_RANGE_STAT_REG);
+	}
 
-	pci9111_fifo_reset();
+	pci9111_fifo_reset(dev);
 
 	for (i = 0; i < insn->n; i++) {
-		pci9111_software_trigger();
+		/* Generate a software trigger */
+		outb(0, dev->iobase + PCI9111_SOFT_TRIG_REG);
 
 		timeout = PCI9111_AI_INSTANT_READ_TIMEOUT;
 
 		while (timeout--) {
-			if (!pci9111_is_fifo_empty())
+			status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
+			/* '1' means FIFO is not empty */
+			if (status & PCI9111_AI_STAT_FF_EF)
 				goto conversion_done;
 		}
 
 		comedi_error(dev, "A/D read timeout");
 		data[i] = 0;
-		pci9111_fifo_reset();
+		pci9111_fifo_reset(dev);
 		return -ETIME;
 
 conversion_done:
 
-		if (resolution == PCI9111_HR_AI_RESOLUTION)
-			data[i] = pci9111_hr_ai_get_data();
-		else
-			data[i] = pci9111_ai_get_data();
+		data[i] = inw(dev->iobase + PCI9111_AI_FIFO_REG);
+		data[i] = ((data[i] >> shift) & maxdata) ^ invert;
 	}
 
-#ifdef AI_INSN_DEBUG
-	printk(PCI9111_DRIVER_NAME ": ai_insn get c/r/t = %2x/%2x/%2x\n",
-	       pci9111_ai_channel_get(),
-	       pci9111_ai_range_get(), pci9111_trigger_and_autoscan_get());
-#endif
-
 	return i;
 }
 
-/*  Analog instant output */
-
-static int
-pci9111_ao_insn_write(struct comedi_device *dev,
-		      struct comedi_subdevice *s, struct comedi_insn *insn,
-		      unsigned int *data)
+static int pci9111_ao_insn_write(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
+	struct pci9111_private_data *dev_private = dev->private;
+	unsigned int val = 0;
 	int i;
 
 	for (i = 0; i < insn->n; i++) {
-		pci9111_ao_set_data(data[i]);
-		dev_private->ao_readback = data[i];
+		val = data[i];
+		outw(val, dev->iobase + PCI9111_AO_REG);
 	}
+	dev_private->ao_readback = val;
 
-	return i;
+	return insn->n;
 }
 
-/*  Analog output readback */
-
 static int pci9111_ao_insn_read(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
+	struct pci9111_private_data *dev_private = dev->private;
 	int i;
 
 	for (i = 0; i < insn->n; i++)
-		data[i] = dev_private->ao_readback & PCI9111_AO_RESOLUTION_MASK;
+		data[i] = dev_private->ao_readback;
 
-	return i;
+	return insn->n;
 }
 
-/*  ------------------------------------------------------------------ */
-/*  DIGITAL INPUT OUTPUT SECTION */
-/*  ------------------------------------------------------------------ */
-
-/*  Digital inputs */
-
 static int pci9111_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *subdevice,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	unsigned int bits;
-
-	bits = pci9111_di_get_bits();
-	data[1] = bits;
+	data[1] = inw(dev->iobase + PCI9111_DIO_REG);
 
 	return insn->n;
 }
 
-/*  Digital outputs */
-
 static int pci9111_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *subdevice,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	unsigned int bits;
-
-	/*  Only set bits that have been masked */
-	/*  data[0] = mask */
-	/*  data[1] = bit state */
+	unsigned int mask = data[0];
+	unsigned int bits = data[1];
 
-	data[0] &= PCI9111_DO_MASK;
+	if (mask) {
+		s->state &= ~mask;
+		s->state |= (bits & mask);
 
-	bits = subdevice->state;
-	bits &= ~data[0];
-	bits |= data[0] & data[1];
-	subdevice->state = bits;
-
-	pci9111_do_set_bits(bits);
+		outw(s->state, dev->iobase + PCI9111_DIO_REG);
+	}
 
-	data[1] = bits;
+	data[1] = s->state;
 
 	return insn->n;
 }
 
-/*  ------------------------------------------------------------------ */
-/*  INITIALISATION SECTION */
-/*  ------------------------------------------------------------------ */
-
-/*  Reset device */
-
 static int pci9111_reset(struct comedi_device *dev)
 {
-	/*  Set trigger source to software */
+	struct pci9111_private_data *dev_private = dev->private;
 
+	/*  Set trigger source to software */
 	plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
 				  true, false);
 
@@ -1198,177 +871,90 @@ static int pci9111_reset(struct comedi_device *dev)
 	pci9111_pretrigger_set(dev, false);
 	pci9111_autoscan_set(dev, false);
 
-	/*  Reset 8254 chip */
-
-	dev_private->timer_divisor_1 = 0;
-	dev_private->timer_divisor_2 = 0;
-
+	/* Reset 8254 chip */
+	dev_private->div1 = 0;
+	dev_private->div2 = 0;
 	pci9111_timer_set(dev);
 
 	return 0;
 }
 
-static struct pci_dev *pci9111_find_pci(struct comedi_device *dev,
-					struct comedi_devconfig *it)
+static int pci9111_attach_pci(struct comedi_device *dev,
+			      struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int i;
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor != PCI_VENDOR_ID_ADLINK)
-			continue;
-		for (i = 0; i < pci9111_board_nbr; i++) {
-			if (pcidev->device != pci9111_boards[i].device_id)
-				continue;
-			if (bus || slot) {
-				/* requested particular bus/slot */
-				if (pcidev->bus->number != bus ||
-				    PCI_SLOT(pcidev->devfn) != slot)
-					continue;
-			}
-			dev->board_ptr = pci9111_boards + i;
-			printk(KERN_ERR
-				"comedi%d: found %s (b:s:f=%d:%d:%d), irq=%d\n",
-				dev->minor, pci9111_boards[i].name,
-				pcidev->bus->number, PCI_SLOT(pcidev->devfn),
-				PCI_FUNC(pcidev->devfn), pcidev->irq);
-			return pcidev;
-		}
-	}
-	printk(KERN_ERR
-		"comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
-		dev->minor, bus, slot);
-	return NULL;
-}
+	struct pci9111_private_data *dev_private;
+	struct comedi_subdevice *s;
+	int ret;
 
-static int pci9111_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	struct comedi_subdevice *subdevice;
-	unsigned long io_base, io_range, lcr_io_base, lcr_io_range;
-	int error;
-	const struct pci9111_board *board;
-
-	if (alloc_private(dev, sizeof(struct pci9111_private_data)) < 0)
-		return -ENOMEM;
-	/*  Probe the device to determine what device in the series it is. */
-
-	printk(KERN_ERR "comedi%d: " PCI9111_DRIVER_NAME " driver\n",
-								dev->minor);
-
-	pcidev = pci9111_find_pci(dev, it);
-	if (!pcidev)
-		return -EIO;
 	comedi_set_hw_dev(dev, &pcidev->dev);
-	board = (struct pci9111_board *)dev->board_ptr;
-
-	/*  TODO: Warn about non-tested boards. */
-
-	/*  Read local configuration register base address
-	 *  [PCI_BASE_ADDRESS #1]. */
-
-	lcr_io_base = pci_resource_start(pcidev, 1);
-	lcr_io_range = pci_resource_len(pcidev, 1);
-
-	printk
-	    ("comedi%d: local configuration registers at address 0x%4lx [0x%4lx]\n",
-	     dev->minor, lcr_io_base, lcr_io_range);
-
-	/*  Enable PCI device and request regions */
-	if (comedi_pci_enable(pcidev, PCI9111_DRIVER_NAME) < 0) {
-		printk
-		    ("comedi%d: Failed to enable PCI device and request regions\n",
-		     dev->minor);
-		return -EIO;
-	}
-	/*  Read PCI6308 register base address [PCI_BASE_ADDRESS #2]. */
+	dev->board_name = dev->driver->driver_name;
 
-	io_base = pci_resource_start(pcidev, 2);
-	io_range = pci_resource_len(pcidev, 2);
+	ret = alloc_private(dev, sizeof(*dev_private));
+	if (ret)
+		return ret;
+	dev_private = dev->private;
 
-	printk(KERN_ERR "comedi%d: 6503 registers at address 0x%4lx [0x%4lx]\n",
-	       dev->minor, io_base, io_range);
-
-	dev->iobase = io_base;
-	dev->board_name = board->name;
-	dev_private->io_range = io_range;
-	dev_private->is_valid = 0;
-	dev_private->lcr_io_base = lcr_io_base;
-	dev_private->lcr_io_range = lcr_io_range;
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	dev_private->lcr_io_base = pci_resource_start(pcidev, 1);
+	dev->iobase = pci_resource_start(pcidev, 2);
 
 	pci9111_reset(dev);
 
-	/*  Irq setup */
-
-	dev->irq = 0;
 	if (pcidev->irq > 0) {
+		ret = request_irq(dev->irq, pci9111_interrupt,
+				  IRQF_SHARED, dev->board_name, dev);
+		if (ret)
+			return ret;
 		dev->irq = pcidev->irq;
-
-		if (request_irq(dev->irq, pci9111_interrupt,
-				IRQF_SHARED, PCI9111_DRIVER_NAME, dev) != 0) {
-			printk(KERN_ERR
-				"comedi%d: unable to allocate irq  %u\n",
-					dev->minor, dev->irq);
-			return -EINVAL;
-		}
 	}
 
-	/*  TODO: Add external multiplexer setup (according to option[2]). */
-
-	error = comedi_alloc_subdevices(dev, 4);
-	if (error)
-		return error;
-
-	subdevice = dev->subdevices + 0;
-	dev->read_subdev = subdevice;
-
-	subdevice->type = COMEDI_SUBD_AI;
-	subdevice->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_CMD_READ;
-
-	/*  TODO: Add external multiplexer data */
-	/*     if (devpriv->usemux) { subdevice->n_chan = devpriv->usemux; } */
-	/*     else { subdevice->n_chan = this_board->n_aichan; } */
-
-	subdevice->n_chan = board->ai_channel_nbr;
-	subdevice->maxdata = board->ai_resolution_mask;
-	subdevice->len_chanlist = board->ai_channel_nbr;
-	subdevice->range_table = board->ai_range_list;
-	subdevice->cancel = pci9111_ai_cancel;
-	subdevice->insn_read = pci9111_ai_insn_read;
-	subdevice->do_cmdtest = pci9111_ai_do_cmd_test;
-	subdevice->do_cmd = pci9111_ai_do_cmd;
-	subdevice->munge = pci9111_ai_munge;
-
-	subdevice = dev->subdevices + 1;
-	subdevice->type = COMEDI_SUBD_AO;
-	subdevice->subdev_flags = SDF_WRITABLE | SDF_COMMON;
-	subdevice->n_chan = board->ao_channel_nbr;
-	subdevice->maxdata = board->ao_resolution_mask;
-	subdevice->len_chanlist = board->ao_channel_nbr;
-	subdevice->range_table = board->ao_range_list;
-	subdevice->insn_write = pci9111_ao_insn_write;
-	subdevice->insn_read = pci9111_ao_insn_read;
-
-	subdevice = dev->subdevices + 2;
-	subdevice->type = COMEDI_SUBD_DI;
-	subdevice->subdev_flags = SDF_READABLE;
-	subdevice->n_chan = PCI9111_DI_CHANNEL_NBR;
-	subdevice->maxdata = 1;
-	subdevice->range_table = &range_digital;
-	subdevice->insn_bits = pci9111_di_insn_bits;
-
-	subdevice = dev->subdevices + 3;
-	subdevice->type = COMEDI_SUBD_DO;
-	subdevice->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	subdevice->n_chan = PCI9111_DO_CHANNEL_NBR;
-	subdevice->maxdata = 1;
-	subdevice->range_table = &range_digital;
-	subdevice->insn_bits = pci9111_do_insn_bits;
-
-	dev_private->is_valid = 1;
+	ret = comedi_alloc_subdevices(dev, 4);
+	if (ret)
+		return ret;
+
+	s = &dev->subdevices[0];
+	dev->read_subdev = s;
+	s->type		= COMEDI_SUBD_AI;
+	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_CMD_READ;
+	s->n_chan	= 16;
+	s->maxdata	= 0xffff;
+	s->len_chanlist	= 16;
+	s->range_table	= &pci9111_ai_range;
+	s->cancel	= pci9111_ai_cancel;
+	s->insn_read	= pci9111_ai_insn_read;
+	s->do_cmdtest	= pci9111_ai_do_cmd_test;
+	s->do_cmd	= pci9111_ai_do_cmd;
+	s->munge	= pci9111_ai_munge;
+
+	s = &dev->subdevices[1];
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE | SDF_COMMON;
+	s->n_chan	= 1;
+	s->maxdata	= 0x0fff;
+	s->len_chanlist	= 1;
+	s->range_table	= &range_bipolar10;
+	s->insn_write	= pci9111_ao_insn_write;
+	s->insn_read	= pci9111_ao_insn_read;
+
+	s = &dev->subdevices[2];
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci9111_di_insn_bits;
+
+	s = &dev->subdevices[3];
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci9111_do_insn_bits;
+
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
 
 	return 0;
 }
@@ -1377,23 +963,20 @@ static void pci9111_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
-	if (dev->private != NULL) {
-		if (dev_private->is_valid)
-			pci9111_reset(dev);
-	}
+	if (dev->iobase)
+		pci9111_reset(dev);
 	if (dev->irq != 0)
 		free_irq(dev->irq, dev);
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver adl_pci9111_driver = {
 	.driver_name	= "adl_pci9111",
 	.module		= THIS_MODULE,
-	.attach		= pci9111_attach,
+	.attach_pci	= pci9111_attach_pci,
 	.detach		= pci9111_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index a1f74c2590e..06ff65c85c9 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -81,18 +81,6 @@ Configuration options:
 				 * correct channel number on every 12 bit sample
 				 */
 
-#undef PCI9118_EXTDEBUG		/*
-				 * if defined then driver prints
-				 * a lot of messages
-				 */
-
-#undef DPRINTK
-#ifdef PCI9118_EXTDEBUG
-#define DPRINTK(fmt, args...) printk(fmt, ## args)
-#else
-#define DPRINTK(fmt, args...)
-#endif
-
 #define IORANGE_9118 	64	/* I hope */
 #define PCI9118_CHANLEN	255	/*
 				 * len of chanlist, some source say 256,
@@ -356,43 +344,170 @@ struct pci9118_private {
 	unsigned int ai_inttrig_start;	/* TRIG_INT for start */
 };
 
-#define devpriv ((struct pci9118_private *)dev->private)
-#define this_board ((struct boardtype *)dev->board_ptr)
-
-/*
-==============================================================================
-*/
-
 static int check_channel_list(struct comedi_device *dev,
 			      struct comedi_subdevice *s, int n_chan,
-			      unsigned int *chanlist, int frontadd,
-			      int backadd);
+			      unsigned int *chanlist, int frontadd, int backadd)
+{
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci9118_private *devpriv = dev->private;
+	unsigned int i, differencial = 0, bipolar = 0;
+
+	/* correct channel and range number check itself comedi/range.c */
+	if (n_chan < 1) {
+		comedi_error(dev, "range/channel list is empty!");
+		return 0;
+	}
+	if ((frontadd + n_chan + backadd) > s->len_chanlist) {
+		printk
+		    ("comedi%d: range/channel list is too long for "
+						"actual configuration (%d>%d)!",
+		     dev->minor, n_chan, s->len_chanlist - frontadd - backadd);
+		return 0;
+	}
+
+	if (CR_AREF(chanlist[0]) == AREF_DIFF)
+		differencial = 1;	/* all input must be diff */
+	if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
+		bipolar = 1;	/* all input must be bipolar */
+	if (n_chan > 1)
+		for (i = 1; i < n_chan; i++) {	/* check S.E/diff */
+			if ((CR_AREF(chanlist[i]) == AREF_DIFF) !=
+			    (differencial)) {
+				comedi_error(dev,
+					     "Differencial and single ended "
+						"inputs can't be mixtured!");
+				return 0;
+			}
+			if ((CR_RANGE(chanlist[i]) < PCI9118_BIPOLAR_RANGES) !=
+			    (bipolar)) {
+				comedi_error(dev,
+					     "Bipolar and unipolar ranges "
+							"can't be mixtured!");
+				return 0;
+			}
+			if (!devpriv->usemux && differencial &&
+			    (CR_CHAN(chanlist[i]) >= this_board->n_aichand)) {
+				comedi_error(dev,
+					     "If AREF_DIFF is used then is "
+					"available only first 8 channels!");
+				return 0;
+			}
+		}
+
+	return 1;
+}
+
 static int setup_channel_list(struct comedi_device *dev,
 			      struct comedi_subdevice *s, int n_chan,
 			      unsigned int *chanlist, int rot, int frontadd,
-			      int backadd, int usedma, char eoshandle);
-static void start_pacer(struct comedi_device *dev, int mode,
-			unsigned int divisor1, unsigned int divisor2);
-static int pci9118_reset(struct comedi_device *dev);
-static int pci9118_exttrg_add(struct comedi_device *dev, unsigned char source);
-static int pci9118_exttrg_del(struct comedi_device *dev, unsigned char source);
-static int pci9118_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s);
-static void pci9118_calc_divisors(char mode, struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int *tim1, unsigned int *tim2,
-				  unsigned int flags, int chans,
-				  unsigned int *div1, unsigned int *div2,
-				  char usessh, unsigned int chnsshfront);
+			      int backadd, int usedma, char useeos)
+{
+	struct pci9118_private *devpriv = dev->private;
+	unsigned int i, differencial = 0, bipolar = 0;
+	unsigned int scanquad, gain, ssh = 0x00;
+
+	if (usedma == 1) {
+		rot = 8;
+		usedma = 0;
+	}
+
+	if (CR_AREF(chanlist[0]) == AREF_DIFF)
+		differencial = 1;	/* all input must be diff */
+	if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
+		bipolar = 1;	/* all input must be bipolar */
+
+	/* All is ok, so we can setup channel/range list */
+
+	if (!bipolar) {
+		devpriv->AdControlReg |= AdControl_UniP;
+							/* set unibipolar */
+	} else {
+		devpriv->AdControlReg &= ((~AdControl_UniP) & 0xff);
+							/* enable bipolar */
+	}
+
+	if (differencial) {
+		devpriv->AdControlReg |= AdControl_Diff;
+							/* enable diff inputs */
+	} else {
+		devpriv->AdControlReg &= ((~AdControl_Diff) & 0xff);
+						/* set single ended inputs */
+	}
+
+	outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
+								/* setup mode */
+
+	outl(2, dev->iobase + PCI9118_SCANMOD);
+					/* gods know why this sequence! */
+	outl(0, dev->iobase + PCI9118_SCANMOD);
+	outl(1, dev->iobase + PCI9118_SCANMOD);
+
+#ifdef PCI9118_PARANOIDCHECK
+	devpriv->chanlistlen = n_chan;
+	for (i = 0; i < (PCI9118_CHANLEN + 1); i++)
+		devpriv->chanlist[i] = 0x55aa;
+#endif
+
+	if (frontadd) {		/* insert channels for S&H */
+		ssh = devpriv->softsshsample;
+		for (i = 0; i < frontadd; i++) {
+						/* store range list to card */
+			scanquad = CR_CHAN(chanlist[0]);
+						/* get channel number; */
+			gain = CR_RANGE(chanlist[0]);
+						/* get gain number */
+			scanquad |= ((gain & 0x03) << 8);
+			outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
+			ssh = devpriv->softsshhold;
+		}
+	}
+
+	for (i = 0; i < n_chan; i++) {	/* store range list to card */
+		scanquad = CR_CHAN(chanlist[i]);	/* get channel number */
+#ifdef PCI9118_PARANOIDCHECK
+		devpriv->chanlist[i ^ usedma] = (scanquad & 0xf) << rot;
+#endif
+		gain = CR_RANGE(chanlist[i]);		/* get gain number */
+		scanquad |= ((gain & 0x03) << 8);
+		outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
+	}
+
+	if (backadd) {		/* insert channels for fit onto 32bit DMA */
+		for (i = 0; i < backadd; i++) {	/* store range list to card */
+			scanquad = CR_CHAN(chanlist[0]);
+							/* get channel number */
+			gain = CR_RANGE(chanlist[0]);	/* get gain number */
+			scanquad |= ((gain & 0x03) << 8);
+			outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
+		}
+	}
+#ifdef PCI9118_PARANOIDCHECK
+	devpriv->chanlist[n_chan ^ usedma] = devpriv->chanlist[0 ^ usedma];
+						/* for 32bit operations */
+	if (useeos) {
+		for (i = 1; i < n_chan; i++) {	/* store range list to card */
+			devpriv->chanlist[(n_chan + i) ^ usedma] =
+			    (CR_CHAN(chanlist[i]) & 0xf) << rot;
+		}
+		devpriv->chanlist[(2 * n_chan) ^ usedma] =
+						devpriv->chanlist[0 ^ usedma];
+						/* for 32bit operations */
+		useeos = 2;
+	} else {
+		useeos = 1;
+	}
+#endif
+	outl(0, dev->iobase + PCI9118_SCANMOD);	/* close scan queue */
+	/* udelay(100); important delay, or first sample will be crippled */
+
+	return 1;		/* we can serve this with scan logic */
+}
 
-/*
-==============================================================================
-*/
 static int pci9118_insn_read_ai(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-
+	struct pci9118_private *devpriv = dev->private;
 	int n, timeout;
 
 	devpriv->AdControlReg = AdControl_Int & 0xff;
@@ -442,13 +557,11 @@ conv_finish:
 
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_insn_write_ao(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci9118_private *devpriv = dev->private;
 	int n, chanreg, ch;
 
 	ch = CR_CHAN(insn->chanspec);
@@ -466,13 +579,11 @@ static int pci9118_insn_write_ao(struct comedi_device *dev,
 	return n;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_insn_read_ao(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci9118_private *devpriv = dev->private;
 	int n, chan;
 
 	chan = CR_CHAN(insn->chanspec);
@@ -482,9 +593,6 @@ static int pci9118_insn_read_ao(struct comedi_device *dev,
 	return n;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_insn_bits_di(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
@@ -494,9 +602,6 @@ static int pci9118_insn_bits_di(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_insn_bits_do(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
@@ -511,11 +616,10 @@ static int pci9118_insn_bits_do(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static void interrupt_pci9118_ai_mode4_switch(struct comedi_device *dev)
 {
+	struct pci9118_private *devpriv = dev->private;
+
 	devpriv->AdFunctionReg =
 	    AdFunction_PDTrg | AdFunction_PETrg | AdFunction_AM;
 	outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC);
@@ -533,6 +637,7 @@ static unsigned int defragment_dma_buffer(struct comedi_device *dev,
 					  short *dma_buffer,
 					  unsigned int num_samples)
 {
+	struct pci9118_private *devpriv = dev->private;
 	unsigned int i = 0, j = 0;
 	unsigned int start_pos = devpriv->ai_add_front,
 	    stop_pos = devpriv->ai_add_front + devpriv->ai_n_chan;
@@ -551,14 +656,12 @@ static unsigned int defragment_dma_buffer(struct comedi_device *dev,
 	return j;
 }
 
-/*
-==============================================================================
-*/
 static int move_block_from_dma(struct comedi_device *dev,
 					struct comedi_subdevice *s,
 					short *dma_buffer,
 					unsigned int num_samples)
 {
+	struct pci9118_private *devpriv = dev->private;
 	unsigned int num_bytes;
 
 	num_samples = defragment_dma_buffer(dev, s, dma_buffer, num_samples);
@@ -574,13 +677,153 @@ static int move_block_from_dma(struct comedi_device *dev,
 	return 0;
 }
 
-/*
-==============================================================================
-*/
+static int pci9118_exttrg_add(struct comedi_device *dev, unsigned char source)
+{
+	struct pci9118_private *devpriv = dev->private;
+
+	if (source > 3)
+		return -1;				/* incorrect source */
+	devpriv->exttrg_users |= (1 << source);
+	devpriv->IntControlReg |= Int_DTrg;
+	outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
+	outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00,
+					devpriv->iobase_a + AMCC_OP_REG_INTCSR);
+							/* allow INT in AMCC */
+	return 0;
+}
+
+static int pci9118_exttrg_del(struct comedi_device *dev, unsigned char source)
+{
+	struct pci9118_private *devpriv = dev->private;
+
+	if (source > 3)
+		return -1;			/* incorrect source */
+	devpriv->exttrg_users &= ~(1 << source);
+	if (!devpriv->exttrg_users) {	/* shutdown ext trg intterrupts */
+		devpriv->IntControlReg &= ~Int_DTrg;
+		if (!devpriv->IntControlReg)	/* all IRQ disabled */
+			outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) &
+					(~0x00001f00),
+					devpriv->iobase_a + AMCC_OP_REG_INTCSR);
+						/* disable int in AMCC */
+		outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
+	}
+	return 0;
+}
+
+static void pci9118_calc_divisors(char mode, struct comedi_device *dev,
+				  struct comedi_subdevice *s,
+				  unsigned int *tim1, unsigned int *tim2,
+				  unsigned int flags, int chans,
+				  unsigned int *div1, unsigned int *div2,
+				  char usessh, unsigned int chnsshfront)
+{
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci9118_private *devpriv = dev->private;
+
+	switch (mode) {
+	case 1:
+	case 4:
+		if (*tim2 < this_board->ai_ns_min)
+			*tim2 = this_board->ai_ns_min;
+		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, div1, div2,
+					  tim2, flags & TRIG_ROUND_NEAREST);
+		break;
+	case 2:
+		if (*tim2 < this_board->ai_ns_min)
+			*tim2 = this_board->ai_ns_min;
+		*div1 = *tim2 / devpriv->i8254_osc_base;
+						/* convert timer (burst) */
+		if (*div1 < this_board->ai_pacer_min)
+			*div1 = this_board->ai_pacer_min;
+		*div2 = *tim1 / devpriv->i8254_osc_base;	/* scan timer */
+		*div2 = *div2 / *div1;		/* major timer is c1*c2 */
+		if (*div2 < chans)
+			*div2 = chans;
+
+		*tim2 = *div1 * devpriv->i8254_osc_base;
+							/* real convert timer */
+
+		if (usessh & (chnsshfront == 0))	/* use BSSH signal */
+			if (*div2 < (chans + 2))
+				*div2 = chans + 2;
+
+		*tim1 = *div1 * *div2 * devpriv->i8254_osc_base;
+		break;
+	}
+}
+
+static void start_pacer(struct comedi_device *dev, int mode,
+			unsigned int divisor1, unsigned int divisor2)
+{
+	outl(0x74, dev->iobase + PCI9118_CNTCTRL);
+	outl(0xb4, dev->iobase + PCI9118_CNTCTRL);
+/* outl(0x30, dev->iobase + PCI9118_CNTCTRL); */
+	udelay(1);
+
+	if ((mode == 1) || (mode == 2) || (mode == 4)) {
+		outl(divisor2 & 0xff, dev->iobase + PCI9118_CNT2);
+		outl((divisor2 >> 8) & 0xff, dev->iobase + PCI9118_CNT2);
+		outl(divisor1 & 0xff, dev->iobase + PCI9118_CNT1);
+		outl((divisor1 >> 8) & 0xff, dev->iobase + PCI9118_CNT1);
+	}
+}
+
+static int pci9118_ai_cancel(struct comedi_device *dev,
+			     struct comedi_subdevice *s)
+{
+	struct pci9118_private *devpriv = dev->private;
+
+	if (devpriv->usedma)
+		outl(inl(devpriv->iobase_a + AMCC_OP_REG_MCSR) &
+			(~EN_A2P_TRANSFERS),
+			devpriv->iobase_a + AMCC_OP_REG_MCSR);	/* stop DMA */
+	pci9118_exttrg_del(dev, EXTTRG_AI);
+	start_pacer(dev, 0, 0, 0);	/* stop 8254 counters */
+	devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;
+	outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC);
+					/*
+					 * positive triggers, no S&H, no burst,
+					 * burst stop, no post trigger,
+					 * no about trigger, trigger stop
+					 */
+	devpriv->AdControlReg = 0x00;
+	outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
+					/*
+					 * bipolar, S.E., use 8254, stop 8354,
+					 * internal trigger, soft trigger,
+					 * disable INT and DMA
+					 */
+	outl(0, dev->iobase + PCI9118_BURST);
+	outl(1, dev->iobase + PCI9118_SCANMOD);
+	outl(2, dev->iobase + PCI9118_SCANMOD);	/* reset scan queue */
+	outl(0, dev->iobase + PCI9118_DELFIFO);	/* flush FIFO */
+
+	devpriv->ai_do = 0;
+	devpriv->usedma = 0;
+
+	devpriv->ai_act_scan = 0;
+	devpriv->ai_act_dmapos = 0;
+	s->async->cur_chan = 0;
+	s->async->inttrig = NULL;
+	devpriv->ai_buf_ptr = 0;
+	devpriv->ai_neverending = 0;
+	devpriv->dma_actbuf = 0;
+
+	if (!devpriv->IntControlReg)
+		outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00,
+					devpriv->iobase_a + AMCC_OP_REG_INTCSR);
+							/* allow INT in AMCC */
+
+	return 0;
+}
+
 static char pci9118_decode_error_status(struct comedi_device *dev,
 					struct comedi_subdevice *s,
 					unsigned char m)
 {
+	struct pci9118_private *devpriv = dev->private;
+
 	if (m & 0x100) {
 		comedi_error(dev, "A/D FIFO Full status (Fatal Error!)");
 		devpriv->ai_maskerr &= ~0x100L;
@@ -613,6 +856,7 @@ static void pci9118_ai_munge(struct comedi_device *dev,
 			     unsigned int num_bytes,
 			     unsigned int start_chan_index)
 {
+	struct pci9118_private *devpriv = dev->private;
 	unsigned int i, num_samples = num_bytes / sizeof(short);
 	short *array = data;
 
@@ -627,15 +871,13 @@ static void pci9118_ai_munge(struct comedi_device *dev,
 	}
 }
 
-/*
-==============================================================================
-*/
 static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
 					   struct comedi_subdevice *s,
 					   unsigned short int_adstat,
 					   unsigned int int_amcc,
 					   unsigned short int_daq)
 {
+	struct pci9118_private *devpriv = dev->private;
 	register short sampl;
 
 	s->async->events = 0;
@@ -680,15 +922,13 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
 		comedi_event(dev, s);
 }
 
-/*
-==============================================================================
-*/
 static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
 				     struct comedi_subdevice *s,
 				     unsigned short int_adstat,
 				     unsigned int int_amcc,
 				     unsigned short int_daq)
 {
+	struct pci9118_private *devpriv = dev->private;
 	unsigned int next_dma_buf, samplesinbuf, sampls, m;
 
 	if (int_amcc & MASTER_ABORT_INT) {
@@ -713,7 +953,6 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
 
 	samplesinbuf = devpriv->dmabuf_use_size[devpriv->dma_actbuf] >> 1;
 					/* number of received real samples */
-/* DPRINTK("dma_actbuf=%d\n",devpriv->dma_actbuf); */
 
 	if (devpriv->dma_doublebuf) {	/*
 					 * switch DMA buffers if is used
@@ -735,17 +974,12 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
 						 * how many samples is to
 						 * end of buffer
 						 */
-/*
- * DPRINTK("samps=%d m=%d %d %d\n",
- * samplesinbuf,m,s->async->buf_int_count,s->async->buf_int_ptr);
- */
 		sampls = m;
 		move_block_from_dma(dev, s,
 				    devpriv->dmabuf_virt[devpriv->dma_actbuf],
 				    samplesinbuf);
 		m = m - sampls;		/* m= how many samples was transferred */
 	}
-/* DPRINTK("YYY\n"); */
 
 	if (!devpriv->ai_neverending)
 		if (devpriv->ai_act_scan >= devpriv->ai_scans) {
@@ -768,12 +1002,10 @@ static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
 	comedi_event(dev, s);
 }
 
-/*
-==============================================================================
-*/
 static irqreturn_t interrupt_pci9118(int irq, void *d)
 {
 	struct comedi_device *dev = d;
+	struct pci9118_private *devpriv = dev->private;
 	unsigned int int_daq = 0, int_amcc, int_adstat;
 
 	if (!dev->attached)
@@ -784,14 +1016,6 @@ static irqreturn_t interrupt_pci9118(int irq, void *d)
 	int_amcc = inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR);
 					/* get INT register from AMCC chip */
 
-/*
- * DPRINTK("INT daq=0x%01x amcc=0x%08x MWAR=0x%08x
- * MWTC=0x%08x ADSTAT=0x%02x ai_do=%d\n",
- * int_daq, int_amcc, inl(devpriv->iobase_a+AMCC_OP_REG_MWAR),
- * inl(devpriv->iobase_a+AMCC_OP_REG_MWTC),
- * inw(dev->iobase+PCI9118_ADSTAT)&0x1ff,devpriv->ai_do);
- */
-
 	if ((!int_daq) && (!(int_amcc & ANY_S593X_INT)))
 		return IRQ_NONE;	/* interrupt from other source */
 
@@ -837,19 +1061,18 @@ static irqreturn_t interrupt_pci9118(int irq, void *d)
 				}
 			}
 
-		(devpriv->int_ai_func) (dev, dev->subdevices + 0, int_adstat,
+		(devpriv->int_ai_func) (dev, &dev->subdevices[0], int_adstat,
 					int_amcc, int_daq);
 
 	}
 	return IRQ_HANDLED;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_ai_inttrig(struct comedi_device *dev,
 			      struct comedi_subdevice *s, unsigned int trignum)
 {
+	struct pci9118_private *devpriv = dev->private;
+
 	if (trignum != devpriv->ai_inttrig_start)
 		return -EINVAL;
 
@@ -868,119 +1091,64 @@ static int pci9118_ai_inttrig(struct comedi_device *dev,
 	return 1;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_ai_cmdtest(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_cmd *cmd)
 {
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci9118_private *devpriv = dev->private;
 	int err = 0;
+	unsigned int flags;
 	int tmp;
 	unsigned int divisor1 = 0, divisor2 = 0;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src,
+					TRIG_NOW | TRIG_EXT | TRIG_INT);
 
-	tmp = cmd->scan_begin_src;
+	flags = TRIG_FOLLOW;
 	if (devpriv->master)
-		cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW;
-	else
-		cmd->scan_begin_src &= TRIG_FOLLOW;
+		flags |= TRIG_TIMER | TRIG_EXT;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags);
 
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
+	flags = TRIG_TIMER | TRIG_EXT;
 	if (devpriv->master)
-		cmd->convert_src &= TRIG_TIMER | TRIG_EXT | TRIG_NOW;
-	else
-		cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+		flags |= TRIG_NOW;
+	err |= cfc_check_trigger_src(&cmd->convert_src, flags);
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE | TRIG_EXT;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_NONE | TRIG_EXT);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2:
-	 * make sure trigger sources are
-	 * unique and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW &&
-	    cmd->start_src != TRIG_INT && cmd->start_src != TRIG_EXT) {
-		cmd->start_src = TRIG_NOW;
-		err++;
-	}
-
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_INT &&
-	    cmd->scan_begin_src != TRIG_FOLLOW) {
-		cmd->scan_begin_src = TRIG_FOLLOW;
-		err++;
-	}
-
-	if (cmd->convert_src != TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW) {
-		cmd->convert_src = TRIG_TIMER;
-		err++;
-	}
-
-	if (cmd->scan_end_src != TRIG_COUNT) {
-		cmd->scan_end_src = TRIG_COUNT;
-		err++;
-	}
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
 
-	if (cmd->stop_src != TRIG_NONE &&
-	    cmd->stop_src != TRIG_COUNT &&
-	    cmd->stop_src != TRIG_INT && cmd->stop_src != TRIG_EXT) {
-		cmd->stop_src = TRIG_COUNT;
-		err++;
-	}
+	/* Step 2b : and mutually compatible */
 
-	if (cmd->start_src == TRIG_EXT && cmd->scan_begin_src == TRIG_EXT) {
-		cmd->start_src = TRIG_NOW;
-		err++;
-	}
+	if (cmd->start_src == TRIG_EXT && cmd->scan_begin_src == TRIG_EXT)
+		err |= -EINVAL;
 
-	if (cmd->start_src == TRIG_INT && cmd->scan_begin_src == TRIG_INT) {
-		cmd->start_src = TRIG_NOW;
-		err++;
-	}
+	if (cmd->start_src == TRIG_INT && cmd->scan_begin_src == TRIG_INT)
+		err |= -EINVAL;
 
 	if ((cmd->scan_begin_src & (TRIG_TIMER | TRIG_EXT)) &&
-	    (!(cmd->convert_src & (TRIG_TIMER | TRIG_NOW)))) {
-		cmd->convert_src = TRIG_TIMER;
-		err++;
-	}
+	    (!(cmd->convert_src & (TRIG_TIMER | TRIG_NOW))))
+		err |= -EINVAL;
 
 	if ((cmd->scan_begin_src == TRIG_FOLLOW) &&
-	    (!(cmd->convert_src & (TRIG_TIMER | TRIG_EXT)))) {
-		cmd->convert_src = TRIG_TIMER;
-		err++;
-	}
+	    (!(cmd->convert_src & (TRIG_TIMER | TRIG_EXT))))
+		err |= -EINVAL;
 
-	if (cmd->stop_src == TRIG_EXT && cmd->scan_begin_src == TRIG_EXT) {
-		cmd->stop_src = TRIG_COUNT;
-		err++;
-	}
+	if (cmd->stop_src == TRIG_EXT && cmd->scan_begin_src == TRIG_EXT)
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -1074,11 +1242,9 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-/* printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 					  &divisor2, &cmd->scan_begin_arg,
 					  cmd->flags & TRIG_ROUND_MASK);
-/* printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		if (cmd->scan_begin_arg < this_board->ai_ns_min)
 			cmd->scan_begin_arg = this_board->ai_ns_min;
 		if (tmp != cmd->scan_begin_arg)
@@ -1090,7 +1256,6 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 					  &divisor2, &cmd->convert_arg,
 					  cmd->flags & TRIG_ROUND_MASK);
-/* printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		if (cmd->convert_arg < this_board->ai_ns_min)
 			cmd->convert_arg = this_board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -1104,7 +1269,6 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 					cmd->scan_begin_arg =
 					    this_board->ai_ns_min *
 					    (cmd->scan_end_arg + 2);
-/* printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 					err++;
 				}
 			} else {
@@ -1113,7 +1277,6 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 					cmd->scan_begin_arg =
 					    cmd->convert_arg *
 					    cmd->chanlist_len;
-/* printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 					err++;
 				}
 			}
@@ -1131,18 +1294,13 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 	return 0;
 }
 
-/*
-==============================================================================
-*/
 static int Compute_and_setup_dma(struct comedi_device *dev)
 {
+	struct pci9118_private *devpriv = dev->private;
 	unsigned int dmalen0, dmalen1, i;
 
-	DPRINTK("adl_pci9118 EDBG: BGN: Compute_and_setup_dma()\n");
 	dmalen0 = devpriv->dmabuf_size[0];
 	dmalen1 = devpriv->dmabuf_size[1];
-	DPRINTK("1 dmalen0=%d dmalen1=%d ai_data_len=%d\n", dmalen0, dmalen1,
-		devpriv->ai_data_len);
 	/* isn't output buff smaller that our DMA buff? */
 	if (dmalen0 > (devpriv->ai_data_len)) {
 		dmalen0 = devpriv->ai_data_len & ~3L;	/*
@@ -1154,7 +1312,6 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 							 * align to 32bit down
 							 */
 	}
-	DPRINTK("2 dmalen0=%d dmalen1=%d\n", dmalen0, dmalen1);
 
 	/* we want wake up every scan? */
 	if (devpriv->ai_flags & TRIG_WAKE_EOS) {
@@ -1169,11 +1326,6 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		} else {
 			/* short first DMA buffer to one scan */
 			dmalen0 = devpriv->ai_n_realscanlen << 1;
-			DPRINTK
-				("21 dmalen0=%d ai_n_realscanlen=%d "
-							"useeoshandle=%d\n",
-				dmalen0, devpriv->ai_n_realscanlen,
-				devpriv->useeoshandle);
 			if (devpriv->useeoshandle)
 				dmalen0 += 2;
 			if (dmalen0 < 4) {
@@ -1197,11 +1349,6 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		} else {
 			/* short second DMA buffer to one scan */
 			dmalen1 = devpriv->ai_n_realscanlen << 1;
-			DPRINTK
-			    ("22 dmalen1=%d ai_n_realscanlen=%d "
-							"useeoshandle=%d\n",
-			     dmalen1, devpriv->ai_n_realscanlen,
-			     devpriv->useeoshandle);
 			if (devpriv->useeoshandle)
 				dmalen1 -= 2;
 			if (dmalen1 < 4) {
@@ -1214,7 +1361,6 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		}
 	}
 
-	DPRINTK("3 dmalen0=%d dmalen1=%d\n", dmalen0, dmalen1);
 	/* transfer without TRIG_WAKE_EOS */
 	if (!(devpriv->ai_flags & TRIG_WAKE_EOS)) {
 		/* if it's possible then align DMA buffers to length of scan */
@@ -1241,15 +1387,9 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 			if (dmalen0 >
 			    ((devpriv->ai_n_realscanlen << 1) *
 			     devpriv->ai_scans)) {
-				DPRINTK
-				    ("3.0 ai_n_realscanlen=%d ai_scans=%d\n",
-				     devpriv->ai_n_realscanlen,
-				     devpriv->ai_scans);
 				dmalen0 =
 				    (devpriv->ai_n_realscanlen << 1) *
 				    devpriv->ai_scans;
-				DPRINTK("3.1 dmalen0=%d dmalen1=%d\n", dmalen0,
-					dmalen1);
 				dmalen0 &= ~3L;
 			} else {	/*
 					 * fits whole measure into
@@ -1261,21 +1401,16 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 					dmalen1 =
 					    (devpriv->ai_n_realscanlen << 1) *
 					    devpriv->ai_scans - dmalen0;
-				DPRINTK("3.2 dmalen0=%d dmalen1=%d\n", dmalen0,
-					dmalen1);
 				dmalen1 &= ~3L;
 			}
 		}
 	}
 
-	DPRINTK("4 dmalen0=%d dmalen1=%d\n", dmalen0, dmalen1);
-
 	/* these DMA buffer size will be used */
 	devpriv->dma_actbuf = 0;
 	devpriv->dmabuf_use_size[0] = dmalen0;
 	devpriv->dmabuf_use_size[1] = dmalen1;
 
-	DPRINTK("5 dmalen0=%d dmalen1=%d\n", dmalen0, dmalen1);
 #if 0
 	if (devpriv->ai_n_scanlen < this_board->half_fifo_size) {
 		devpriv->dmabuf_panic_size[0] =
@@ -1308,18 +1443,14 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 			devpriv->iobase_a + AMCC_OP_REG_INTCSR);
 						/* allow bus mastering */
 
-	DPRINTK("adl_pci9118 EDBG: END: Compute_and_setup_dma()\n");
 	return 0;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_ai_docmd_sampl(struct comedi_device *dev,
 				  struct comedi_subdevice *s)
 {
-	DPRINTK("adl_pci9118 EDBG: BGN: pci9118_ai_docmd_sampl(%d,) [%d]\n",
-		dev->minor, devpriv->ai_do);
+	struct pci9118_private *devpriv = dev->private;
+
 	switch (devpriv->ai_do) {
 	case 1:
 		devpriv->AdControlReg |= AdControl_TmrTr;
@@ -1366,18 +1497,14 @@ static int pci9118_ai_docmd_sampl(struct comedi_device *dev,
 		outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
 	}
 
-	DPRINTK("adl_pci9118 EDBG: END: pci9118_ai_docmd_sampl()\n");
 	return 0;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_ai_docmd_dma(struct comedi_device *dev,
 				struct comedi_subdevice *s)
 {
-	DPRINTK("adl_pci9118 EDBG: BGN: pci9118_ai_docmd_dma(%d,) [%d,%d]\n",
-		dev->minor, devpriv->ai_do, devpriv->usedma);
+	struct pci9118_private *devpriv = dev->private;
+
 	Compute_and_setup_dma(dev);
 
 	switch (devpriv->ai_do) {
@@ -1440,20 +1567,17 @@ static int pci9118_ai_docmd_dma(struct comedi_device *dev,
 		outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
 	}
 
-	DPRINTK("adl_pci9118 EDBG: BGN: pci9118_ai_docmd_dma()\n");
 	return 0;
 }
 
-/*
-==============================================================================
-*/
 static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci9118_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
 	unsigned int addchans = 0;
 	int ret = 0;
 
-	DPRINTK("adl_pci9118 EDBG: BGN: pci9118_ai_cmd(%d,)\n", dev->minor);
 	devpriv->ai12_startstop = 0;
 	devpriv->ai_flags = cmd->flags;
 	devpriv->ai_n_chan = cmd->chanlist_len;
@@ -1502,10 +1626,6 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->usessh = 0;
 				/*  no */
 
-	DPRINTK("1 neverending=%d scans=%u usessh=%d ai_startstop=0x%2x\n",
-		devpriv->ai_neverending, devpriv->ai_scans, devpriv->usessh,
-		devpriv->ai12_startstop);
-
 	/*
 	 * use additional sample at end of every scan
 	 * to satisty DMA 32 bit transfer?
@@ -1586,12 +1706,6 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	     devpriv->ai_add_back) * (devpriv->ai_n_scanlen /
 				      devpriv->ai_n_chan);
 
-	DPRINTK("2 usedma=%d realscan=%d af=%u n_chan=%d ab=%d n_scanlen=%d\n",
-		devpriv->usedma,
-		devpriv->ai_n_realscanlen, devpriv->ai_add_front,
-		devpriv->ai_n_chan, devpriv->ai_add_back,
-		devpriv->ai_n_scanlen);
-
 	/* check and setup channel list */
 	if (!check_channel_list(dev, s, devpriv->ai_n_chan,
 				devpriv->ai_chanlist, devpriv->ai_add_front,
@@ -1688,371 +1802,13 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	else
 		ret = pci9118_ai_docmd_sampl(dev, s);
 
-	DPRINTK("adl_pci9118 EDBG: END: pci9118_ai_cmd()\n");
 	return ret;
 }
 
-/*
-==============================================================================
-*/
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s, int n_chan,
-			      unsigned int *chanlist, int frontadd, int backadd)
-{
-	unsigned int i, differencial = 0, bipolar = 0;
-
-	/* correct channel and range number check itself comedi/range.c */
-	if (n_chan < 1) {
-		comedi_error(dev, "range/channel list is empty!");
-		return 0;
-	}
-	if ((frontadd + n_chan + backadd) > s->len_chanlist) {
-		printk
-		    ("comedi%d: range/channel list is too long for "
-						"actual configuration (%d>%d)!",
-		     dev->minor, n_chan, s->len_chanlist - frontadd - backadd);
-		return 0;
-	}
-
-	if (CR_AREF(chanlist[0]) == AREF_DIFF)
-		differencial = 1;	/* all input must be diff */
-	if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
-		bipolar = 1;	/* all input must be bipolar */
-	if (n_chan > 1)
-		for (i = 1; i < n_chan; i++) {	/* check S.E/diff */
-			if ((CR_AREF(chanlist[i]) == AREF_DIFF) !=
-			    (differencial)) {
-				comedi_error(dev,
-					     "Differencial and single ended "
-						"inputs can't be mixtured!");
-				return 0;
-			}
-			if ((CR_RANGE(chanlist[i]) < PCI9118_BIPOLAR_RANGES) !=
-			    (bipolar)) {
-				comedi_error(dev,
-					     "Bipolar and unipolar ranges "
-							"can't be mixtured!");
-				return 0;
-			}
-			if (!devpriv->usemux && differencial &&
-			    (CR_CHAN(chanlist[i]) >= this_board->n_aichand)) {
-				comedi_error(dev,
-					     "If AREF_DIFF is used then is "
-					"available only first 8 channels!");
-				return 0;
-			}
-		}
-
-	return 1;
-}
-
-/*
-==============================================================================
-*/
-static int setup_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s, int n_chan,
-			      unsigned int *chanlist, int rot, int frontadd,
-			      int backadd, int usedma, char useeos)
-{
-	unsigned int i, differencial = 0, bipolar = 0;
-	unsigned int scanquad, gain, ssh = 0x00;
-
-	DPRINTK
-	    ("adl_pci9118 EDBG: BGN: setup_channel_list"
-						"(%d,.,%d,.,%d,%d,%d,%d)\n",
-	     dev->minor, n_chan, rot, frontadd, backadd, usedma);
-
-	if (usedma == 1) {
-		rot = 8;
-		usedma = 0;
-	}
-
-	if (CR_AREF(chanlist[0]) == AREF_DIFF)
-		differencial = 1;	/* all input must be diff */
-	if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
-		bipolar = 1;	/* all input must be bipolar */
-
-	/* All is ok, so we can setup channel/range list */
-
-	if (!bipolar) {
-		devpriv->AdControlReg |= AdControl_UniP;
-							/* set unibipolar */
-	} else {
-		devpriv->AdControlReg &= ((~AdControl_UniP) & 0xff);
-							/* enable bipolar */
-	}
-
-	if (differencial) {
-		devpriv->AdControlReg |= AdControl_Diff;
-							/* enable diff inputs */
-	} else {
-		devpriv->AdControlReg &= ((~AdControl_Diff) & 0xff);
-						/* set single ended inputs */
-	}
-
-	outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
-								/* setup mode */
-
-	outl(2, dev->iobase + PCI9118_SCANMOD);
-					/* gods know why this sequence! */
-	outl(0, dev->iobase + PCI9118_SCANMOD);
-	outl(1, dev->iobase + PCI9118_SCANMOD);
-
-#ifdef PCI9118_PARANOIDCHECK
-	devpriv->chanlistlen = n_chan;
-	for (i = 0; i < (PCI9118_CHANLEN + 1); i++)
-		devpriv->chanlist[i] = 0x55aa;
-#endif
-
-	if (frontadd) {		/* insert channels for S&H */
-		ssh = devpriv->softsshsample;
-		DPRINTK("FA: %04x: ", ssh);
-		for (i = 0; i < frontadd; i++) {
-						/* store range list to card */
-			scanquad = CR_CHAN(chanlist[0]);
-						/* get channel number; */
-			gain = CR_RANGE(chanlist[0]);
-						/* get gain number */
-			scanquad |= ((gain & 0x03) << 8);
-			outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
-			DPRINTK("%02x ", scanquad | ssh);
-			ssh = devpriv->softsshhold;
-		}
-		DPRINTK("\n ");
-	}
-
-	DPRINTK("SL: ", ssh);
-	for (i = 0; i < n_chan; i++) {	/* store range list to card */
-		scanquad = CR_CHAN(chanlist[i]);	/* get channel number */
-#ifdef PCI9118_PARANOIDCHECK
-		devpriv->chanlist[i ^ usedma] = (scanquad & 0xf) << rot;
-#endif
-		gain = CR_RANGE(chanlist[i]);		/* get gain number */
-		scanquad |= ((gain & 0x03) << 8);
-		outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
-		DPRINTK("%02x ", scanquad | ssh);
-	}
-	DPRINTK("\n ");
-
-	if (backadd) {		/* insert channels for fit onto 32bit DMA */
-		DPRINTK("BA: %04x: ", ssh);
-		for (i = 0; i < backadd; i++) {	/* store range list to card */
-			scanquad = CR_CHAN(chanlist[0]);
-							/* get channel number */
-			gain = CR_RANGE(chanlist[0]);	/* get gain number */
-			scanquad |= ((gain & 0x03) << 8);
-			outl(scanquad | ssh, dev->iobase + PCI9118_GAIN);
-			DPRINTK("%02x ", scanquad | ssh);
-		}
-		DPRINTK("\n ");
-	}
-#ifdef PCI9118_PARANOIDCHECK
-	devpriv->chanlist[n_chan ^ usedma] = devpriv->chanlist[0 ^ usedma];
-						/* for 32bit operations */
-	if (useeos) {
-		for (i = 1; i < n_chan; i++) {	/* store range list to card */
-			devpriv->chanlist[(n_chan + i) ^ usedma] =
-			    (CR_CHAN(chanlist[i]) & 0xf) << rot;
-		}
-		devpriv->chanlist[(2 * n_chan) ^ usedma] =
-						devpriv->chanlist[0 ^ usedma];
-						/* for 32bit operations */
-		useeos = 2;
-	} else {
-		useeos = 1;
-	}
-#ifdef PCI9118_EXTDEBUG
-	DPRINTK("CHL: ");
-	for (i = 0; i <= (useeos * n_chan); i++)
-		DPRINTK("%04x ", devpriv->chanlist[i]);
-
-	DPRINTK("\n ");
-#endif
-#endif
-	outl(0, dev->iobase + PCI9118_SCANMOD);	/* close scan queue */
-	/* udelay(100); important delay, or first sample will be crippled */
-
-	DPRINTK("adl_pci9118 EDBG: END: setup_channel_list()\n");
-	return 1;		/* we can serve this with scan logic */
-}
-
-/*
-==============================================================================
-  calculate 8254 divisors if they are used for dual timing
-*/
-static void pci9118_calc_divisors(char mode, struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int *tim1, unsigned int *tim2,
-				  unsigned int flags, int chans,
-				  unsigned int *div1, unsigned int *div2,
-				  char usessh, unsigned int chnsshfront)
-{
-	DPRINTK
-	    ("adl_pci9118 EDBG: BGN: pci9118_calc_divisors"
-					"(%d,%d,.,%u,%u,%u,%d,.,.,,%u,%u)\n",
-	     mode, dev->minor, *tim1, *tim2, flags, chans, usessh, chnsshfront);
-	switch (mode) {
-	case 1:
-	case 4:
-		if (*tim2 < this_board->ai_ns_min)
-			*tim2 = this_board->ai_ns_min;
-		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, div1, div2,
-					  tim2, flags & TRIG_ROUND_NEAREST);
-		DPRINTK("OSC base=%u div1=%u div2=%u timer1=%u\n",
-			devpriv->i8254_osc_base, *div1, *div2, *tim1);
-		break;
-	case 2:
-		if (*tim2 < this_board->ai_ns_min)
-			*tim2 = this_board->ai_ns_min;
-		DPRINTK("1 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-		*div1 = *tim2 / devpriv->i8254_osc_base;
-						/* convert timer (burst) */
-		DPRINTK("2 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-		if (*div1 < this_board->ai_pacer_min)
-			*div1 = this_board->ai_pacer_min;
-		DPRINTK("3 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-		*div2 = *tim1 / devpriv->i8254_osc_base;	/* scan timer */
-		DPRINTK("4 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-		*div2 = *div2 / *div1;		/* major timer is c1*c2 */
-		DPRINTK("5 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-		if (*div2 < chans)
-			*div2 = chans;
-		DPRINTK("6 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-
-		*tim2 = *div1 * devpriv->i8254_osc_base;
-							/* real convert timer */
-
-		if (usessh & (chnsshfront == 0))	/* use BSSH signal */
-			if (*div2 < (chans + 2))
-				*div2 = chans + 2;
-
-		DPRINTK("7 div1=%u div2=%u timer1=%u timer2=%u\n", *div1, *div2,
-			*tim1, *tim2);
-		*tim1 = *div1 * *div2 * devpriv->i8254_osc_base;
-		DPRINTK("OSC base=%u div1=%u div2=%u timer1=%u timer2=%u\n",
-			devpriv->i8254_osc_base, *div1, *div2, *tim1, *tim2);
-		break;
-	}
-	DPRINTK("adl_pci9118 EDBG: END: pci9118_calc_divisors(%u,%u)\n",
-		*div1, *div2);
-}
-
-/*
-==============================================================================
-*/
-static void start_pacer(struct comedi_device *dev, int mode,
-			unsigned int divisor1, unsigned int divisor2)
-{
-	outl(0x74, dev->iobase + PCI9118_CNTCTRL);
-	outl(0xb4, dev->iobase + PCI9118_CNTCTRL);
-/* outl(0x30, dev->iobase + PCI9118_CNTCTRL); */
-	udelay(1);
-
-	if ((mode == 1) || (mode == 2) || (mode == 4)) {
-		outl(divisor2 & 0xff, dev->iobase + PCI9118_CNT2);
-		outl((divisor2 >> 8) & 0xff, dev->iobase + PCI9118_CNT2);
-		outl(divisor1 & 0xff, dev->iobase + PCI9118_CNT1);
-		outl((divisor1 >> 8) & 0xff, dev->iobase + PCI9118_CNT1);
-	}
-}
-
-/*
-==============================================================================
-*/
-static int pci9118_exttrg_add(struct comedi_device *dev, unsigned char source)
-{
-	if (source > 3)
-		return -1;				/* incorrect source */
-	devpriv->exttrg_users |= (1 << source);
-	devpriv->IntControlReg |= Int_DTrg;
-	outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
-	outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00,
-					devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-							/* allow INT in AMCC */
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci9118_exttrg_del(struct comedi_device *dev, unsigned char source)
-{
-	if (source > 3)
-		return -1;			/* incorrect source */
-	devpriv->exttrg_users &= ~(1 << source);
-	if (!devpriv->exttrg_users) {	/* shutdown ext trg intterrupts */
-		devpriv->IntControlReg &= ~Int_DTrg;
-		if (!devpriv->IntControlReg)	/* all IRQ disabled */
-			outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) &
-					(~0x00001f00),
-					devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-						/* disable int in AMCC */
-		outl(devpriv->IntControlReg, dev->iobase + PCI9118_INTCTRL);
-	}
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci9118_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	if (devpriv->usedma)
-		outl(inl(devpriv->iobase_a + AMCC_OP_REG_MCSR) &
-			(~EN_A2P_TRANSFERS),
-			devpriv->iobase_a + AMCC_OP_REG_MCSR);	/* stop DMA */
-	pci9118_exttrg_del(dev, EXTTRG_AI);
-	start_pacer(dev, 0, 0, 0);	/* stop 8254 counters */
-	devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;
-	outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC);
-					/*
-					 * positive triggers, no S&H, no burst,
-					 * burst stop, no post trigger,
-					 * no about trigger, trigger stop
-					 */
-	devpriv->AdControlReg = 0x00;
-	outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
-					/*
-					 * bipolar, S.E., use 8254, stop 8354,
-					 * internal trigger, soft trigger,
-					 * disable INT and DMA
-					 */
-	outl(0, dev->iobase + PCI9118_BURST);
-	outl(1, dev->iobase + PCI9118_SCANMOD);
-	outl(2, dev->iobase + PCI9118_SCANMOD);	/* reset scan queue */
-	outl(0, dev->iobase + PCI9118_DELFIFO);	/* flush FIFO */
-
-	devpriv->ai_do = 0;
-	devpriv->usedma = 0;
-
-	devpriv->ai_act_scan = 0;
-	devpriv->ai_act_dmapos = 0;
-	s->async->cur_chan = 0;
-	s->async->inttrig = NULL;
-	devpriv->ai_buf_ptr = 0;
-	devpriv->ai_neverending = 0;
-	devpriv->dma_actbuf = 0;
-
-	if (!devpriv->IntControlReg)
-		outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | 0x1f00,
-					devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-							/* allow INT in AMCC */
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
 static int pci9118_reset(struct comedi_device *dev)
 {
+	struct pci9118_private *devpriv = dev->private;
+
 	devpriv->IntControlReg = 0;
 	devpriv->exttrg_users = 0;
 	inl(dev->iobase + PCI9118_INTCTRL);
@@ -2112,6 +1868,7 @@ static int pci9118_reset(struct comedi_device *dev)
 static struct pci_dev *pci9118_find_pci(struct comedi_device *dev,
 					struct comedi_devconfig *it)
 {
+	const struct boardtype *this_board = comedi_board(dev);
 	struct pci_dev *pcidev = NULL;
 	int bus = it->options[0];
 	int slot = it->options[1];
@@ -2150,6 +1907,8 @@ static struct pci_dev *pci9118_find_pci(struct comedi_device *dev,
 static int pci9118_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci9118_private *devpriv;
 	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
 	int ret, pages, i;
@@ -2164,11 +1923,12 @@ static int pci9118_attach(struct comedi_device *dev,
 	else
 		master = 1;
 
-	ret = alloc_private(dev, sizeof(struct pci9118_private));
+	ret = alloc_private(dev, sizeof(*devpriv));
 	if (ret < 0) {
 		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
+	devpriv = dev->private;
 
 	pcidev = pci9118_find_pci(dev, it);
 	if (!pcidev)
@@ -2273,7 +2033,7 @@ static int pci9118_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;
@@ -2294,7 +2054,7 @@ static int pci9118_attach(struct comedi_device *dev,
 		s->munge = pci9118_ai_munge;
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
 	s->n_chan = this_board->n_aochan;
@@ -2304,7 +2064,7 @@ static int pci9118_attach(struct comedi_device *dev,
 	s->insn_write = pci9118_insn_write_ao;
 	s->insn_read = pci9118_insn_read_ao;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
 	s->n_chan = 4;
@@ -2314,7 +2074,7 @@ static int pci9118_attach(struct comedi_device *dev,
 	s->io_bits = 0;		/* all bits input */
 	s->insn_bits = pci9118_insn_bits_di;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
 	s->n_chan = 4;
@@ -2345,8 +2105,9 @@ static int pci9118_attach(struct comedi_device *dev,
 static void pci9118_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct pci9118_private *devpriv = dev->private;
 
-	if (dev->private) {
+	if (devpriv) {
 		if (devpriv->valid)
 			pci9118_reset(dev);
 		if (dev->irq)
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index 6df51c8a602..3a2aa5628be 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -133,8 +133,6 @@ struct adq12b_private {
 	unsigned int digital_state;
 };
 
-#define devpriv ((struct adq12b_private *)dev->private)
-
 /*
  * "instructions" read/write data in "one-shot" or "software-triggered"
  * mode.
@@ -144,6 +142,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev,
 			   struct comedi_subdevice *s, struct comedi_insn *insn,
 			   unsigned int *data)
 {
+	struct adq12b_private *devpriv = dev->private;
 	int n, i;
 	int range, channel;
 	unsigned char hi, lo, status;
@@ -200,6 +199,7 @@ static int adq12b_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	struct adq12b_private *devpriv = dev->private;
 	int channel;
 
 	for (channel = 0; channel < 8; channel++)
@@ -221,6 +221,7 @@ static int adq12b_do_insn_bits(struct comedi_device *dev,
 static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct adq12b_board *board = comedi_board(dev);
+	struct adq12b_private *devpriv;
 	struct comedi_subdevice *s;
 	unsigned long iobase;
 	int unipolar, differential;
@@ -252,19 +253,18 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = board->name;
 
-/*
- * Allocate the private structure area.  alloc_private() is a
- * convenient macro defined in comedidev.h.
- */
-	if (alloc_private(dev, sizeof(struct adq12b_private)) < 0)
-		return -ENOMEM;
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
 
-/* fill in devpriv structure */
 	devpriv->unipolar = unipolar;
 	devpriv->differential = differential;
 	devpriv->digital_state = 0;
-/* initialize channel and range to -1 so we make sure we always write
-   at least once to the CTREG in the instruction */
+	/*
+	 * initialize channel and range to -1 so we make sure we
+	 * always write at least once to the CTREG in the instruction
+	 */
 	devpriv->last_channel = -1;
 	devpriv->last_range = -1;
 
@@ -272,7 +272,7 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
 	if (differential) {
@@ -294,7 +294,7 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				   the board can handle */
 	s->insn_read = adq12b_ai_rinsn;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* digital input subdevice */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -303,7 +303,7 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_digital;
 	s->insn_bits = adq12b_di_insn_bits;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* digital output subdevice */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -321,7 +321,6 @@ static void adq12b_detach(struct comedi_device *dev)
 {
 	if (dev->iobase)
 		release_region(dev->iobase, ADQ12B_SIZE);
-	kfree(devpriv);
 }
 
 static const struct adq12b_board adq12b_boards[] = {
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 31986608eaf..def37bcc2a6 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -45,6 +45,7 @@ Configuration options:
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "8253.h"
 #include "amcc_s5933.h"
 
@@ -52,17 +53,6 @@ Configuration options:
 				 * correct channel number on every 12 bit
 				 * sample */
 
-#undef PCI171X_EXTDEBUG
-
-#define DRV_NAME "adv_pci1710"
-
-#undef DPRINTK
-#ifdef PCI171X_EXTDEBUG
-#define DPRINTK(fmt, args...) printk(fmt, ## args)
-#else
-#define DPRINTK(fmt, args...)
-#endif
-
 #define PCI_VENDOR_ID_ADVANTECH		0x13fe
 
 /* hardware types of the cards */
@@ -211,44 +201,101 @@ struct boardtype {
 };
 
 static const struct boardtype boardtypes[] = {
-	{"pci1710", 0x1710,
-	 IORANGE_171x, 1, TYPE_PCI171X,
-	 16, 8, 2, 16, 16, 1, 0x0fff, 0x0fff,
-	 &range_pci1710_3, range_codes_pci1710_3,
-	 &range_pci171x_da,
-	 10000, 2048},
-	{"pci1710hg", 0x1710,
-	 IORANGE_171x, 1, TYPE_PCI171X,
-	 16, 8, 2, 16, 16, 1, 0x0fff, 0x0fff,
-	 &range_pci1710hg, range_codes_pci1710hg,
-	 &range_pci171x_da,
-	 10000, 2048},
-	{"pci1711", 0x1711,
-	 IORANGE_171x, 1, TYPE_PCI171X,
-	 16, 0, 2, 16, 16, 1, 0x0fff, 0x0fff,
-	 &range_pci17x1, range_codes_pci17x1, &range_pci171x_da,
-	 10000, 512},
-	{"pci1713", 0x1713,
-	 IORANGE_171x, 1, TYPE_PCI1713,
-	 32, 16, 0, 0, 0, 0, 0x0fff, 0x0000,
-	 &range_pci1710_3, range_codes_pci1710_3, NULL,
-	 10000, 2048},
-	{"pci1720", 0x1720,
-	 IORANGE_1720, 0, TYPE_PCI1720,
-	 0, 0, 4, 0, 0, 0, 0x0000, 0x0fff,
-	 NULL, NULL, &range_pci1720,
-	 0, 0},
-	{"pci1731", 0x1731,
-	 IORANGE_171x, 1, TYPE_PCI171X,
-	 16, 0, 0, 16, 16, 0, 0x0fff, 0x0000,
-	 &range_pci17x1, range_codes_pci17x1, NULL,
-	 10000, 512},
-	/*  dummy entry corresponding to driver name */
-	{.name = DRV_NAME},
+	{
+		.name		= "pci1710",
+		.device_id	= 0x1710,
+		.iorange	= IORANGE_171x,
+		.have_irq	= 1,
+		.cardtype	= TYPE_PCI171X,
+		.n_aichan	= 16,
+		.n_aichand	= 8,
+		.n_aochan	= 2,
+		.n_dichan	= 16,
+		.n_dochan	= 16,
+		.n_counter	= 1,
+		.ai_maxdata	= 0x0fff,
+		.ao_maxdata	= 0x0fff,
+		.rangelist_ai	= &range_pci1710_3,
+		.rangecode_ai	= range_codes_pci1710_3,
+		.rangelist_ao	= &range_pci171x_da,
+		.ai_ns_min	= 10000,
+		.fifo_half_size	= 2048,
+	}, {
+		.name		= "pci1710hg",
+		.device_id	= 0x1710,
+		.iorange	= IORANGE_171x,
+		.have_irq	= 1,
+		.cardtype	= TYPE_PCI171X,
+		.n_aichan	= 16,
+		.n_aichand	= 8,
+		.n_aochan	= 2,
+		.n_dichan	= 16,
+		.n_dochan	= 16,
+		.n_counter	= 1,
+		.ai_maxdata	= 0x0fff,
+		.ao_maxdata	= 0x0fff,
+		.rangelist_ai	= &range_pci1710hg,
+		.rangecode_ai	= range_codes_pci1710hg,
+		.rangelist_ao	= &range_pci171x_da,
+		.ai_ns_min	= 10000,
+		.fifo_half_size	= 2048,
+	}, {
+		.name		= "pci1711",
+		.device_id	= 0x1711,
+		.iorange	= IORANGE_171x,
+		.have_irq	= 1,
+		.cardtype	= TYPE_PCI171X,
+		.n_aichan	= 16,
+		.n_aochan	= 2,
+		.n_dichan	= 16,
+		.n_dochan	= 16,
+		.n_counter	= 1,
+		.ai_maxdata	= 0x0fff,
+		.ao_maxdata	= 0x0fff,
+		.rangelist_ai	= &range_pci17x1,
+		.rangecode_ai	= range_codes_pci17x1,
+		.rangelist_ao	= &range_pci171x_da,
+		.ai_ns_min	= 10000,
+		.fifo_half_size	= 512,
+	}, {
+		.name		= "pci1713",
+		.device_id	= 0x1713,
+		.iorange	= IORANGE_171x,
+		.have_irq	= 1,
+		.cardtype	= TYPE_PCI1713,
+		.n_aichan	= 32,
+		.n_aichand	= 16,
+		.ai_maxdata	= 0x0fff,
+		.rangelist_ai	= &range_pci1710_3,
+		.rangecode_ai	= range_codes_pci1710_3,
+		.ai_ns_min	= 10000,
+		.fifo_half_size	= 2048,
+	}, {
+		.name		= "pci1720",
+		.device_id	= 0x1720,
+		.iorange	= IORANGE_1720,
+		.cardtype	= TYPE_PCI1720,
+		.n_aochan	= 4,
+		.ao_maxdata	= 0x0fff,
+		.rangelist_ao	= &range_pci1720,
+	}, {
+		.name		= "pci1731",
+		.device_id	= 0x1731,
+		.iorange	= IORANGE_171x,
+		.have_irq	= 1,
+		.cardtype	= TYPE_PCI171X,
+		.n_aichan	= 16,
+		.n_dichan	= 16,
+		.n_dochan	= 16,
+		.ai_maxdata	= 0x0fff,
+		.rangelist_ai	= &range_pci17x1,
+		.rangecode_ai	= range_codes_pci17x1,
+		.ai_ns_min	= 10000,
+		.fifo_half_size	= 512,
+	},
 };
 
 struct pci1710_private {
-	char valid;		/*  card is usable */
 	char neverending_ai;	/*  we do unlimited AI */
 	unsigned int CntrlReg;	/*  Control register */
 	unsigned int i8254_osc_base;	/*  frequence of onboard oscilator */
@@ -278,33 +325,108 @@ struct pci1710_private {
 					 * internal state */
 };
 
-#define devpriv ((struct pci1710_private *)dev->private)
-#define this_board ((const struct boardtype *)dev->board_ptr)
+/*  used for gain list programming */
+static const unsigned int muxonechan[] = {
+	0x0000, 0x0101, 0x0202, 0x0303, 0x0404, 0x0505, 0x0606, 0x0707,
+	0x0808, 0x0909, 0x0a0a, 0x0b0b, 0x0c0c, 0x0d0d, 0x0e0e, 0x0f0f,
+	0x1010, 0x1111, 0x1212, 0x1313, 0x1414, 0x1515, 0x1616, 0x1717,
+	0x1818, 0x1919, 0x1a1a, 0x1b1b, 0x1c1c, 0x1d1d, 0x1e1e, 0x1f1f
+};
 
 /*
 ==============================================================================
+ Check if channel list from user is builded correctly
+ If it's ok, then program scan/gain logic.
+ This works for all cards.
 */
-
 static int check_channel_list(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
-			      unsigned int *chanlist, unsigned int n_chan);
+			      unsigned int *chanlist, unsigned int n_chan)
+{
+	unsigned int chansegment[32];
+	unsigned int i, nowmustbechan, seglen, segpos;
+
+	/* correct channel and range number check itself comedi/range.c */
+	if (n_chan < 1) {
+		comedi_error(dev, "range/channel list is empty!");
+		return 0;
+	}
+
+	if (n_chan == 1)
+		return 1; /* seglen=1 */
+
+	chansegment[0] = chanlist[0]; /*  first channel is every time ok */
+	for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
+		if (chanlist[0] == chanlist[i])
+			break;	/*  we detected a loop, stop */
+		if ((CR_CHAN(chanlist[i]) & 1) &&
+		    (CR_AREF(chanlist[i]) == AREF_DIFF)) {
+			comedi_error(dev, "Odd channel cannot be differential input!\n");
+			return 0;
+		}
+		nowmustbechan = (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
+		if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
+			nowmustbechan = (nowmustbechan + 1) % s->n_chan;
+		if (nowmustbechan != CR_CHAN(chanlist[i])) {
+			printk("channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
+			       i, CR_CHAN(chanlist[i]), nowmustbechan,
+			       CR_CHAN(chanlist[0]));
+			return 0;
+		}
+		chansegment[i] = chanlist[i]; /* next correct channel in list */
+	}
+
+	for (i = 0, segpos = 0; i < n_chan; i++) {
+		if (chanlist[i] != chansegment[i % seglen]) {
+			printk("bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
+			       i, CR_CHAN(chansegment[i]),
+			       CR_RANGE(chansegment[i]),
+			       CR_AREF(chansegment[i]),
+			       CR_CHAN(chanlist[i % seglen]),
+			       CR_RANGE(chanlist[i % seglen]),
+			       CR_AREF(chansegment[i % seglen]));
+			return 0;
+		}
+	}
+	return seglen;
+}
+
 static void setup_channel_list(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       unsigned int *chanlist, unsigned int n_chan,
-			       unsigned int seglen);
-static void start_pacer(struct comedi_device *dev, int mode,
-			unsigned int divisor1, unsigned int divisor2);
-static int pci1710_reset(struct comedi_device *dev);
-static int pci171x_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s);
+			       unsigned int seglen)
+{
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci1710_private *devpriv = dev->private;
+	unsigned int i, range, chanprog;
 
-/*  used for gain list programming */
-static const unsigned int muxonechan[] = {
-	0x0000, 0x0101, 0x0202, 0x0303, 0x0404, 0x0505, 0x0606, 0x0707,
-	0x0808, 0x0909, 0x0a0a, 0x0b0b, 0x0c0c, 0x0d0d, 0x0e0e, 0x0f0f,
-	0x1010, 0x1111, 0x1212, 0x1313, 0x1414, 0x1515, 0x1616, 0x1717,
-	0x1818, 0x1919, 0x1a1a, 0x1b1b, 0x1c1c, 0x1d1d, 0x1e1e, 0x1f1f
-};
+	devpriv->act_chanlist_len = seglen;
+	devpriv->act_chanlist_pos = 0;
+
+	for (i = 0; i < seglen; i++) {	/*  store range list to card */
+		chanprog = muxonechan[CR_CHAN(chanlist[i])];
+		outw(chanprog, dev->iobase + PCI171x_MUX); /* select channel */
+		range = this_board->rangecode_ai[CR_RANGE(chanlist[i])];
+		if (CR_AREF(chanlist[i]) == AREF_DIFF)
+			range |= 0x0020;
+		outw(range, dev->iobase + PCI171x_RANGE); /* select gain */
+#ifdef PCI171x_PARANOIDCHECK
+		devpriv->act_chanlist[i] =
+			(CR_CHAN(chanlist[i]) << 12) & 0xf000;
+#endif
+	}
+#ifdef PCI171x_PARANOIDCHECK
+	for ( ; i < n_chan; i++) { /* store remainder of channel list */
+		devpriv->act_chanlist[i] =
+			(CR_CHAN(chanlist[i]) << 12) & 0xf000;
+	}
+#endif
+
+	devpriv->ai_et_MuxVal =
+		CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8);
+	/* select channel interval to scan */
+	outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
+}
 
 /*
 ==============================================================================
@@ -313,12 +435,13 @@ static int pci171x_insn_read_ai(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci1710_private *devpriv = dev->private;
 	int n, timeout;
 #ifdef PCI171x_PARANOIDCHECK
+	const struct boardtype *this_board = comedi_board(dev);
 	unsigned int idata;
 #endif
 
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_insn_read_ai(...)\n");
 	devpriv->CntrlReg &= Control_CNT0;
 	devpriv->CntrlReg |= Control_SW;	/*  set software trigger */
 	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
@@ -327,32 +450,18 @@ static int pci171x_insn_read_ai(struct comedi_device *dev,
 
 	setup_channel_list(dev, s, &insn->chanspec, 1, 1);
 
-	DPRINTK("adv_pci1710 A ST=%4x IO=%x\n",
-		inw(dev->iobase + PCI171x_STATUS),
-		dev->iobase + PCI171x_STATUS);
 	for (n = 0; n < insn->n; n++) {
 		outw(0, dev->iobase + PCI171x_SOFTTRG);	/* start conversion */
-		DPRINTK("adv_pci1710 B n=%d ST=%4x\n", n,
-			inw(dev->iobase + PCI171x_STATUS));
 		/* udelay(1); */
-		DPRINTK("adv_pci1710 C n=%d ST=%4x\n", n,
-			inw(dev->iobase + PCI171x_STATUS));
 		timeout = 100;
 		while (timeout--) {
 			if (!(inw(dev->iobase + PCI171x_STATUS) & Status_FE))
 				goto conv_finish;
-			if (!(timeout % 10))
-				DPRINTK("adv_pci1710 D n=%d tm=%d ST=%4x\n", n,
-					timeout,
-					inw(dev->iobase + PCI171x_STATUS));
 		}
 		comedi_error(dev, "A/D insn timeout");
 		outb(0, dev->iobase + PCI171x_CLRFIFO);
 		outb(0, dev->iobase + PCI171x_CLRINT);
 		data[n] = 0;
-		DPRINTK
-		    ("adv_pci1710 EDBG: END: pci171x_insn_read_ai(...) n=%d\n",
-		     n);
 		return -ETIME;
 
 conv_finish:
@@ -373,7 +482,6 @@ conv_finish:
 	outb(0, dev->iobase + PCI171x_CLRFIFO);
 	outb(0, dev->iobase + PCI171x_CLRINT);
 
-	DPRINTK("adv_pci1710 EDBG: END: pci171x_insn_read_ai(...) n=%d\n", n);
 	return n;
 }
 
@@ -384,6 +492,7 @@ static int pci171x_insn_write_ao(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci1710_private *devpriv = dev->private;
 	int n, chan, range, ofs;
 
 	chan = CR_CHAN(insn->chanspec);
@@ -416,6 +525,7 @@ static int pci171x_insn_read_ao(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci1710_private *devpriv = dev->private;
 	int n, chan;
 
 	chan = CR_CHAN(insn->chanspec);
@@ -457,6 +567,23 @@ static int pci171x_insn_bits_do(struct comedi_device *dev,
 /*
 ==============================================================================
 */
+static void start_pacer(struct comedi_device *dev, int mode,
+			unsigned int divisor1, unsigned int divisor2)
+{
+	outw(0xb4, dev->iobase + PCI171x_CNTCTRL);
+	outw(0x74, dev->iobase + PCI171x_CNTCTRL);
+
+	if (mode == 1) {
+		outw(divisor2 & 0xff, dev->iobase + PCI171x_CNT2);
+		outw((divisor2 >> 8) & 0xff, dev->iobase + PCI171x_CNT2);
+		outw(divisor1 & 0xff, dev->iobase + PCI171x_CNT1);
+		outw((divisor1 >> 8) & 0xff, dev->iobase + PCI171x_CNT1);
+	}
+}
+
+/*
+==============================================================================
+*/
 static int pci171x_insn_counter_read(struct comedi_device *dev,
 				     struct comedi_subdevice *s,
 				     struct comedi_insn *insn,
@@ -486,6 +613,7 @@ static int pci171x_insn_counter_write(struct comedi_device *dev,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
+	struct pci1710_private *devpriv = dev->private;
 	uint msb, lsb, ccntrl, status;
 
 	lsb = data[0] & 0x00FF;
@@ -517,6 +645,7 @@ static int pci171x_insn_counter_config(struct comedi_device *dev,
 {
 #ifdef unused
 	/* This doesn't work like a normal Comedi counter config */
+	struct pci1710_private *devpriv = dev->private;
 	uint ccntrl = 0;
 
 	devpriv->cnt0_write_wait = data[0] & 0x20;
@@ -552,6 +681,7 @@ static int pci1720_insn_write_ao(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci1710_private *devpriv = dev->private;
 	int n, rangereg, chan;
 
 	chan = CR_CHAN(insn->chanspec);
@@ -575,16 +705,47 @@ static int pci1720_insn_write_ao(struct comedi_device *dev,
 /*
 ==============================================================================
 */
+static int pci171x_ai_cancel(struct comedi_device *dev,
+			     struct comedi_subdevice *s)
+{
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci1710_private *devpriv = dev->private;
+
+	switch (this_board->cardtype) {
+	default:
+		devpriv->CntrlReg &= Control_CNT0;
+		devpriv->CntrlReg |= Control_SW;
+
+		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);	/*  reset any operations */
+		start_pacer(dev, -1, 0, 0);
+		outb(0, dev->iobase + PCI171x_CLRFIFO);
+		outb(0, dev->iobase + PCI171x_CLRINT);
+		break;
+	}
+
+	devpriv->ai_do = 0;
+	devpriv->ai_act_scan = 0;
+	s->async->cur_chan = 0;
+	devpriv->ai_buf_ptr = 0;
+	devpriv->neverending_ai = 0;
+
+	return 0;
+}
+
+/*
+==============================================================================
+*/
 static void interrupt_pci1710_every_sample(void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct pci1710_private *devpriv = dev->private;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int m;
 #ifdef PCI171x_PARANOIDCHECK
+	const struct boardtype *this_board = comedi_board(dev);
 	short sampl;
 #endif
 
-	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_pci1710_every_sample(...)\n");
 	m = inw(dev->iobase + PCI171x_STATUS);
 	if (m & Status_FE) {
 		printk("comedi%d: A/D FIFO empty (%4x)\n", dev->minor, m);
@@ -605,11 +766,9 @@ static void interrupt_pci1710_every_sample(void *d)
 
 	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear our INT request */
 
-	DPRINTK("FOR ");
 	for (; !(inw(dev->iobase + PCI171x_STATUS) & Status_FE);) {
 #ifdef PCI171x_PARANOIDCHECK
 		sampl = inw(dev->iobase + PCI171x_AD_DATA);
-		DPRINTK("%04x:", sampl);
 		if (this_board->cardtype != TYPE_PCI1713)
 			if ((sampl & 0xf000) !=
 			    devpriv->act_chanlist[s->async->cur_chan]) {
@@ -626,8 +785,6 @@ static void interrupt_pci1710_every_sample(void *d)
 				comedi_event(dev, s);
 				return;
 			}
-		DPRINTK("%8d %2d %8d~", s->async->buf_int_ptr,
-			s->async->cur_chan, s->async->buf_int_count);
 		comedi_buf_put(s->async, sampl & 0x0fff);
 #else
 		comedi_buf_put(s->async,
@@ -641,11 +798,6 @@ static void interrupt_pci1710_every_sample(void *d)
 
 		if (s->async->cur_chan == 0) {	/*  one scan done */
 			devpriv->ai_act_scan++;
-			DPRINTK
-			    ("adv_pci1710 EDBG: EOS1 bic %d bip %d buc %d bup %d\n",
-			     s->async->buf_int_count, s->async->buf_int_ptr,
-			     s->async->buf_user_count, s->async->buf_user_ptr);
-			DPRINTK("adv_pci1710 EDBG: EOS2\n");
 			if ((!devpriv->neverending_ai) &&
 			    (devpriv->ai_act_scan >= devpriv->ai_scans)) {
 				/*  all data sampled */
@@ -658,7 +810,6 @@ static void interrupt_pci1710_every_sample(void *d)
 	}
 
 	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear our INT request */
-	DPRINTK("adv_pci1710 EDBG: END: interrupt_pci1710_every_sample(...)\n");
 
 	comedi_event(dev, s);
 }
@@ -669,12 +820,13 @@ static void interrupt_pci1710_every_sample(void *d)
 static int move_block_from_fifo(struct comedi_device *dev,
 				struct comedi_subdevice *s, int n, int turn)
 {
+	struct pci1710_private *devpriv = dev->private;
 	int i, j;
 #ifdef PCI171x_PARANOIDCHECK
+	const struct boardtype *this_board = comedi_board(dev);
 	int sampl;
 #endif
-	DPRINTK("adv_pci1710 EDBG: BGN: move_block_from_fifo(...,%d,%d)\n", n,
-		turn);
+
 	j = s->async->cur_chan;
 	for (i = 0; i < n; i++) {
 #ifdef PCI171x_PARANOIDCHECK
@@ -705,7 +857,6 @@ static int move_block_from_fifo(struct comedi_device *dev,
 		}
 	}
 	s->async->cur_chan = j;
-	DPRINTK("adv_pci1710 EDBG: END: move_block_from_fifo(...)\n");
 	return 0;
 }
 
@@ -715,10 +866,11 @@ static int move_block_from_fifo(struct comedi_device *dev,
 static void interrupt_pci1710_half_fifo(void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci1710_private *devpriv = dev->private;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int m, samplesinbuf;
 
-	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_pci1710_half_fifo(...)\n");
 	m = inw(dev->iobase + PCI171x_STATUS);
 	if (!(m & Status_FH)) {
 		printk("comedi%d: A/D FIFO not half full! (%4x)\n",
@@ -760,7 +912,6 @@ static void interrupt_pci1710_half_fifo(void *d)
 			return;
 		}
 	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear our INT request */
-	DPRINTK("adv_pci1710 EDBG: END: interrupt_pci1710_half_fifo(...)\n");
 
 	comedi_event(dev, s);
 }
@@ -771,18 +922,14 @@ static void interrupt_pci1710_half_fifo(void *d)
 static irqreturn_t interrupt_service_pci1710(int irq, void *d)
 {
 	struct comedi_device *dev = d;
+	struct pci1710_private *devpriv = dev->private;
 
-	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_service_pci1710(%d,...)\n",
-		irq);
 	if (!dev->attached)	/*  is device attached? */
 		return IRQ_NONE;	/*  no, exit */
 	/*  is this interrupt from our board? */
 	if (!(inw(dev->iobase + PCI171x_STATUS) & Status_IRQ))
 		return IRQ_NONE;	/*  no, exit */
 
-	DPRINTK("adv_pci1710 EDBG: interrupt_service_pci1710() ST: %4x\n",
-		inw(dev->iobase + PCI171x_STATUS));
-
 	if (devpriv->ai_et) {	/*  Switch from initial TRIG_EXT to TRIG_xxx. */
 		devpriv->ai_et = 0;
 		devpriv->CntrlReg &= Control_CNT0;
@@ -802,7 +949,6 @@ static irqreturn_t interrupt_service_pci1710(int irq, void *d)
 	} else {
 		interrupt_pci1710_half_fifo(d);
 	}
-	DPRINTK("adv_pci1710 EDBG: END: interrupt_service_pci1710(...)\n");
 	return IRQ_HANDLED;
 }
 
@@ -812,11 +958,11 @@ static irqreturn_t interrupt_service_pci1710(int irq, void *d)
 static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev,
 				     struct comedi_subdevice *s)
 {
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci1710_private *devpriv = dev->private;
 	unsigned int divisor1 = 0, divisor2 = 0;
 	unsigned int seglen;
 
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_ai_docmd_and_mode(%d,...)\n",
-		mode);
 	start_pacer(dev, -1, 0, 0);	/*  stop pacer */
 
 	seglen = check_channel_list(dev, s, devpriv->ai_chanlist,
@@ -869,10 +1015,6 @@ static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev,
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 					  &divisor2, &devpriv->ai_timer1,
 					  devpriv->ai_flags & TRIG_ROUND_MASK);
-		DPRINTK
-		    ("adv_pci1710 EDBG: OSC base=%u div1=%u div2=%u timer=%u\n",
-		     devpriv->i8254_osc_base, divisor1, divisor2,
-		     devpriv->ai_timer1);
 		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
 		if (mode != 2) {
 			/*  start pacer */
@@ -888,27 +1030,9 @@ static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev,
 		break;
 	}
 
-	DPRINTK("adv_pci1710 EDBG: END: pci171x_ai_docmd_and_mode(...)\n");
 	return 0;
 }
 
-#ifdef PCI171X_EXTDEBUG
-/*
-==============================================================================
-*/
-static void pci171x_cmdtest_out(int e, struct comedi_cmd *cmd)
-{
-	printk("adv_pci1710 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
-	       cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	printk("adv_pci1710 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
-	       cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	printk("adv_pci1710 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
-	       cmd->scan_end_src);
-	printk("adv_pci1710 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n",
-	       e, cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
-}
-#endif
-
 /*
 ==============================================================================
 */
@@ -916,83 +1040,33 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_cmd *cmd)
 {
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci1710_private *devpriv = dev->private;
 	int err = 0;
 	int tmp;
 	unsigned int divisor1 = 0, divisor2 = 0;
 
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_ai_cmdtest(...)\n");
-#ifdef PCI171X_EXTDEBUG
-	pci171x_cmdtest_out(-1, cmd);
-#endif
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
-
-	if (err) {
-#ifdef PCI171X_EXTDEBUG
-		pci171x_cmdtest_out(1, cmd);
-#endif
-		DPRINTK(
-		"adv_pci1710 EDBG: BGN: pci171x_ai_cmdtest(...) err=%d ret=1\n",
-		err);
+	if (err)
 		return 1;
-	}
-
-	/* step2: make sure trigger srcs are unique and mutually compatible */
-
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT) {
-		cmd->start_src = TRIG_NOW;
-		err++;
-	}
 
-	if (cmd->scan_begin_src != TRIG_FOLLOW) {
-		cmd->scan_begin_src = TRIG_FOLLOW;
-		err++;
-	}
+	/* step 2a: make sure trigger sources are unique */
 
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
 
-	if (cmd->scan_end_src != TRIG_COUNT) {
-		cmd->scan_end_src = TRIG_COUNT;
-		err++;
-	}
-
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
+	/* step 2b: and mutually compatible */
 
-	if (err) {
-#ifdef PCI171X_EXTDEBUG
-		pci171x_cmdtest_out(2, cmd);
-#endif
-		DPRINTK(
-		"adv_pci1710 EDBG: BGN: pci171x_ai_cmdtest(...) err=%d ret=2\n",
-		err);
+	if (err)
 		return 2;
-	}
 
 	/* step 3: make sure arguments are trivially compatible */
 
@@ -1034,15 +1108,8 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 		}
 	}
 
-	if (err) {
-#ifdef PCI171X_EXTDEBUG
-		pci171x_cmdtest_out(3, cmd);
-#endif
-		DPRINTK(
-		"adv_pci1710 EDBG: BGN: pci171x_ai_cmdtest(...) err=%d ret=3\n",
-		err);
+	if (err)
 		return 3;
-	}
 
 	/* step 4: fix up any arguments */
 
@@ -1057,12 +1124,8 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 			err++;
 	}
 
-	if (err) {
-		DPRINTK
-		    ("adv_pci1710 EDBG: BGN: pci171x_ai_cmdtest(...) err=%d ret=4\n",
-		     err);
+	if (err)
 		return 4;
-	}
 
 	/* step 5: complain about special chanlist considerations */
 
@@ -1072,7 +1135,6 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 			return 5;	/*  incorrect channels list */
 	}
 
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_ai_cmdtest(...) ret=0\n");
 	return 0;
 }
 
@@ -1081,9 +1143,9 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 */
 static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
+	struct pci1710_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_ai_cmd(...)\n");
 	devpriv->ai_n_chan = cmd->chanlist_len;
 	devpriv->ai_chanlist = cmd->chanlist;
 	devpriv->ai_flags = cmd->flags;
@@ -1115,162 +1177,12 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 /*
 ==============================================================================
- Check if channel list from user is builded correctly
- If it's ok, then program scan/gain logic.
- This works for all cards.
-*/
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      unsigned int *chanlist, unsigned int n_chan)
-{
-	unsigned int chansegment[32];
-	unsigned int i, nowmustbechan, seglen, segpos;
-
-	DPRINTK("adv_pci1710 EDBG:  check_channel_list(...,%d)\n", n_chan);
-	/* correct channel and range number check itself comedi/range.c */
-	if (n_chan < 1) {
-		comedi_error(dev, "range/channel list is empty!");
-		return 0;
-	}
-
-	if (n_chan == 1)
-		return 1; /* seglen=1 */
-
-	chansegment[0] = chanlist[0]; /*  first channel is every time ok */
-	for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
-		if (chanlist[0] == chanlist[i])
-			break;	/*  we detected a loop, stop */
-		if ((CR_CHAN(chanlist[i]) & 1) &&
-		    (CR_AREF(chanlist[i]) == AREF_DIFF)) {
-			comedi_error(dev, "Odd channel cannot be differential input!\n");
-			return 0;
-		}
-		nowmustbechan = (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
-		if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
-			nowmustbechan = (nowmustbechan + 1) % s->n_chan;
-		if (nowmustbechan != CR_CHAN(chanlist[i])) {
-			printk("channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
-			       i, CR_CHAN(chanlist[i]), nowmustbechan,
-			       CR_CHAN(chanlist[0]));
-			return 0;
-		}
-		chansegment[i] = chanlist[i]; /* next correct channel in list */
-	}
-
-	for (i = 0, segpos = 0; i < n_chan; i++) {
-		if (chanlist[i] != chansegment[i % seglen]) {
-			printk("bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
-			       i, CR_CHAN(chansegment[i]),
-			       CR_RANGE(chansegment[i]),
-			       CR_AREF(chansegment[i]),
-			       CR_CHAN(chanlist[i % seglen]),
-			       CR_RANGE(chanlist[i % seglen]),
-			       CR_AREF(chansegment[i % seglen]));
-			return 0;
-		}
-	}
-	return seglen;
-}
-
-static void setup_channel_list(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       unsigned int *chanlist, unsigned int n_chan,
-			       unsigned int seglen)
-{
-	unsigned int i, range, chanprog;
-
-	DPRINTK("adv_pci1710 EDBG:  setup_channel_list(...,%d,%d)\n", n_chan,
-		seglen);
-	devpriv->act_chanlist_len = seglen;
-	devpriv->act_chanlist_pos = 0;
-
-	DPRINTK("SegLen: %d\n", seglen);
-	for (i = 0; i < seglen; i++) {	/*  store range list to card */
-		chanprog = muxonechan[CR_CHAN(chanlist[i])];
-		outw(chanprog, dev->iobase + PCI171x_MUX); /* select channel */
-		range = this_board->rangecode_ai[CR_RANGE(chanlist[i])];
-		if (CR_AREF(chanlist[i]) == AREF_DIFF)
-			range |= 0x0020;
-		outw(range, dev->iobase + PCI171x_RANGE); /* select gain */
-#ifdef PCI171x_PARANOIDCHECK
-		devpriv->act_chanlist[i] =
-			(CR_CHAN(chanlist[i]) << 12) & 0xf000;
-#endif
-		DPRINTK("GS: %2d. [%4x]=%4x %4x\n", i, chanprog, range,
-			devpriv->act_chanlist[i]);
-	}
-#ifdef PCI171x_PARANOIDCHECK
-	for ( ; i < n_chan; i++) { /* store remainder of channel list */
-		devpriv->act_chanlist[i] =
-			(CR_CHAN(chanlist[i]) << 12) & 0xf000;
-	}
-#endif
-
-	devpriv->ai_et_MuxVal =
-		CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8);
-	/* select channel interval to scan */
-	outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
-	DPRINTK("MUX: %4x L%4x.H%4x\n",
-		CR_CHAN(chanlist[0]) | (CR_CHAN(chanlist[seglen - 1]) << 8),
-		CR_CHAN(chanlist[0]), CR_CHAN(chanlist[seglen - 1]));
-}
-
-/*
-==============================================================================
-*/
-static void start_pacer(struct comedi_device *dev, int mode,
-			unsigned int divisor1, unsigned int divisor2)
-{
-	DPRINTK("adv_pci1710 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode,
-		divisor1, divisor2);
-	outw(0xb4, dev->iobase + PCI171x_CNTCTRL);
-	outw(0x74, dev->iobase + PCI171x_CNTCTRL);
-
-	if (mode == 1) {
-		outw(divisor2 & 0xff, dev->iobase + PCI171x_CNT2);
-		outw((divisor2 >> 8) & 0xff, dev->iobase + PCI171x_CNT2);
-		outw(divisor1 & 0xff, dev->iobase + PCI171x_CNT1);
-		outw((divisor1 >> 8) & 0xff, dev->iobase + PCI171x_CNT1);
-	}
-	DPRINTK("adv_pci1710 EDBG: END: start_pacer(...)\n");
-}
-
-/*
-==============================================================================
-*/
-static int pci171x_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_ai_cancel(...)\n");
-
-	switch (this_board->cardtype) {
-	default:
-		devpriv->CntrlReg &= Control_CNT0;
-		devpriv->CntrlReg |= Control_SW;
-
-		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);	/*  reset any operations */
-		start_pacer(dev, -1, 0, 0);
-		outb(0, dev->iobase + PCI171x_CLRFIFO);
-		outb(0, dev->iobase + PCI171x_CLRINT);
-		break;
-	}
-
-	devpriv->ai_do = 0;
-	devpriv->ai_act_scan = 0;
-	s->async->cur_chan = 0;
-	devpriv->ai_buf_ptr = 0;
-	devpriv->neverending_ai = 0;
-
-	DPRINTK("adv_pci1710 EDBG: END: pci171x_ai_cancel(...)\n");
-	return 0;
-}
-
-/*
-==============================================================================
 */
 static int pci171x_reset(struct comedi_device *dev)
 {
-	DPRINTK("adv_pci1710 EDBG: BGN: pci171x_reset(...)\n");
+	const struct boardtype *this_board = comedi_board(dev);
+	struct pci1710_private *devpriv = dev->private;
+
 	outw(0x30, dev->iobase + PCI171x_CNTCTRL);
 	devpriv->CntrlReg = Control_SW | Control_CNT0;	/*  Software trigger, CNT0=external */
 	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);	/*  reset any operations */
@@ -1291,7 +1203,6 @@ static int pci171x_reset(struct comedi_device *dev)
 	outb(0, dev->iobase + PCI171x_CLRFIFO);	/*  clear FIFO */
 	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear INT request */
 
-	DPRINTK("adv_pci1710 EDBG: END: pci171x_reset(...)\n");
 	return 0;
 }
 
@@ -1300,7 +1211,8 @@ static int pci171x_reset(struct comedi_device *dev)
 */
 static int pci1720_reset(struct comedi_device *dev)
 {
-	DPRINTK("adv_pci1710 EDBG: BGN: pci1720_reset(...)\n");
+	struct pci1710_private *devpriv = dev->private;
+
 	outb(Syncont_SC0, dev->iobase + PCI1720_SYNCONT);	/*  set synchronous output mode */
 	devpriv->da_ranges = 0xAA;
 	outb(devpriv->da_ranges, dev->iobase + PCI1720_RANGE);	/*  set all ranges to +/-5V */
@@ -1313,7 +1225,6 @@ static int pci1720_reset(struct comedi_device *dev)
 	devpriv->ao_data[1] = 0x0800;
 	devpriv->ao_data[2] = 0x0800;
 	devpriv->ao_data[3] = 0x0800;
-	DPRINTK("adv_pci1710 EDBG: END: pci1720_reset(...)\n");
 	return 0;
 }
 
@@ -1322,85 +1233,55 @@ static int pci1720_reset(struct comedi_device *dev)
 */
 static int pci1710_reset(struct comedi_device *dev)
 {
-	DPRINTK("adv_pci1710 EDBG: BGN: pci1710_reset(...)\n");
+	const struct boardtype *this_board = comedi_board(dev);
+
 	switch (this_board->cardtype) {
 	case TYPE_PCI1720:
 		return pci1720_reset(dev);
 	default:
 		return pci171x_reset(dev);
 	}
-	DPRINTK("adv_pci1710 EDBG: END: pci1710_reset(...)\n");
 }
 
-static struct pci_dev *pci1710_find_pci_dev(struct comedi_device *dev,
-					    struct comedi_devconfig *it)
+static const void *pci1710_find_boardinfo(struct comedi_device *dev,
+					  struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int board_index = this_board - boardtypes;
+	const struct boardtype *this_board;
 	int i;
 
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-			    slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_ADVANTECH)
-			continue;
-		if (pci_is_enabled(pcidev))
-			continue;
-
-		if (strcmp(this_board->name, DRV_NAME) == 0) {
-			for (i = 0; i < ARRAY_SIZE(boardtypes); ++i) {
-				if (pcidev->device == boardtypes[i].device_id) {
-					board_index = i;
-					break;
-				}
-			}
-			if (i == ARRAY_SIZE(boardtypes))
-				continue;
-		} else {
-			if (pcidev->device != boardtypes[board_index].device_id)
-				continue;
-		}
-		dev->board_ptr = &boardtypes[board_index];
-		return pcidev;
+	for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {
+		this_board = &boardtypes[i];
+		if (pcidev->device == this_board->device_id)
+			return this_board;
 	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
 	return NULL;
 }
 
-static int pci1710_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static int pci1710_attach_pci(struct comedi_device *dev,
+			      struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev;
+	const struct boardtype *this_board;
+	struct pci1710_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret, subdev, n_subdevices;
-	unsigned int irq;
 
-	dev_info(dev->class_dev, DRV_NAME ": attach\n");
+	comedi_set_hw_dev(dev, &pcidev->dev);
 
-	ret = alloc_private(dev, sizeof(struct pci1710_private));
-	if (ret < 0)
-		return -ENOMEM;
+	this_board = pci1710_find_boardinfo(dev, pcidev);
+	if (!this_board)
+		return -ENODEV;
+	dev->board_ptr = this_board;
+	dev->board_name = this_board->name;
 
-	pcidev = pci1710_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret < 0)
+		return ret;
+	devpriv = dev->private;
 
-	ret = comedi_pci_enable(pcidev, DRV_NAME);
+	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
 		return ret;
-
 	dev->iobase = pci_resource_start(pcidev, 2);
-	irq = pcidev->irq;
-
-	dev->board_name = this_board->name;
 
 	n_subdevices = 0;
 	if (this_board->n_aichan)
@@ -1420,30 +1301,17 @@ static int pci1710_attach(struct comedi_device *dev,
 
 	pci1710_reset(dev);
 
-	if (this_board->have_irq) {
-		if (irq) {
-			if (request_irq(irq, interrupt_service_pci1710,
-					IRQF_SHARED, "Advantech PCI-1710",
-					dev)) {
-				dev_dbg(dev->class_dev,
-					"unable to allocate IRQ %d, DISABLING IT",
-					irq);
-				irq = 0;	/* Can't use IRQ */
-			} else {
-				dev_dbg(dev->class_dev, "irq=%u", irq);
-			}
-		} else {
-			dev_dbg(dev->class_dev, "IRQ disabled");
-		}
-	} else {
-		irq = 0;
+	if (this_board->have_irq && pcidev->irq) {
+		ret = request_irq(pcidev->irq, interrupt_service_pci1710,
+				  IRQF_SHARED, dev->board_name, dev);
+		if (ret == 0)
+			dev->irq = pcidev->irq;
 	}
 
-	dev->irq = irq;
 	subdev = 0;
 
 	if (this_board->n_aichan) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		dev->read_subdev = s;
 		s->type = COMEDI_SUBD_AI;
 		s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND;
@@ -1455,7 +1323,7 @@ static int pci1710_attach(struct comedi_device *dev,
 		s->range_table = this_board->rangelist_ai;
 		s->cancel = pci171x_ai_cancel;
 		s->insn_read = pci171x_insn_read_ai;
-		if (irq) {
+		if (dev->irq) {
 			s->subdev_flags |= SDF_CMD_READ;
 			s->do_cmdtest = pci171x_ai_cmdtest;
 			s->do_cmd = pci171x_ai_cmd;
@@ -1465,7 +1333,7 @@ static int pci1710_attach(struct comedi_device *dev,
 	}
 
 	if (this_board->n_aochan) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
 		s->n_chan = this_board->n_aochan;
@@ -1485,7 +1353,7 @@ static int pci1710_attach(struct comedi_device *dev,
 	}
 
 	if (this_board->n_dichan) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_DI;
 		s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
 		s->n_chan = this_board->n_dichan;
@@ -1498,7 +1366,7 @@ static int pci1710_attach(struct comedi_device *dev,
 	}
 
 	if (this_board->n_dochan) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_DO;
 		s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
 		s->n_chan = this_board->n_dochan;
@@ -1513,7 +1381,7 @@ static int pci1710_attach(struct comedi_device *dev,
 	}
 
 	if (this_board->n_counter) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_COUNTER;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 		s->n_chan = this_board->n_counter;
@@ -1526,7 +1394,8 @@ static int pci1710_attach(struct comedi_device *dev,
 		subdev++;
 	}
 
-	devpriv->valid = 1;
+	dev_info(dev->class_dev, "%s attached, irq %sabled\n",
+		dev->board_name, dev->irq ? "en" : "dis");
 
 	return 0;
 }
@@ -1535,27 +1404,21 @@ static void pci1710_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
-	if (dev->private) {
-		if (devpriv->valid)
-			pci1710_reset(dev);
-		if (dev->irq)
-			free_irq(dev->irq, dev);
-	}
+	if (dev->iobase)
+		pci1710_reset(dev);
+	if (dev->irq)
+		free_irq(dev->irq, dev);
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver adv_pci1710_driver = {
 	.driver_name	= "adv_pci1710",
 	.module		= THIS_MODULE,
-	.attach		= pci1710_attach,
+	.attach_pci	= pci1710_attach_pci,
 	.detach		= pci1710_detach,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.board_name	= &boardtypes[0].name,
-	.offset		= sizeof(struct boardtype),
 };
 
 static int __devinit adv_pci1710_pci_probe(struct pci_dev *dev,
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index da5ee69d2c9..df4efc0606d 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -52,11 +52,6 @@ TODO:
 
 #define PCI_VENDOR_ID_ADVANTECH		0x13fe	/* Advantech PCI vendor ID */
 
-/* hardware types of the cards */
-#define TYPE_PCI1723 0
-
-#define IORANGE_1723  0x2A
-
 /* all the registers for the pci1723 board */
 #define PCI1723_DA(N)   ((N)<<1)	/* W: D/A register N (0 to 7) */
 
@@ -112,63 +107,18 @@ TODO:
 
 #define PCI1723_SELECT_CALIBRATION 0x28	/* Select the calibration Ref_V */
 
-/* static unsigned short pci_list_builded=0;      =1 list of card is know */
-
-static const struct comedi_lrange range_pci1723 = { 1, {
-							BIP_RANGE(10)
-							}
-};
-
-/*
- * Board descriptions for pci1723 boards.
- */
-struct pci1723_board {
-	const char *name;
-	int vendor_id;		/* PCI vendor a device ID of card */
-	int device_id;
-	int iorange;
-	char cardtype;
-	int n_aochan;		/* num of D/A chans */
-	int n_diochan;		/* num of DIO chans */
-	int ao_maxdata;		/* resolution of D/A */
-	const struct comedi_lrange *rangelist_ao;	/* rangelist for D/A */
-};
-
-static const struct pci1723_board boardtypes[] = {
-	{
-	 .name = "pci1723",
-	 .vendor_id = PCI_VENDOR_ID_ADVANTECH,
-	 .device_id = 0x1723,
-	 .iorange = IORANGE_1723,
-	 .cardtype = TYPE_PCI1723,
-	 .n_aochan = 8,
-	 .n_diochan = 16,
-	 .ao_maxdata = 0xffff,
-	 .rangelist_ao = &range_pci1723,
-	 },
-};
-
-/* This structure is for data unique to this hardware driver. */
 struct pci1723_private {
-	int valid;		/* card is usable; */
-
 	unsigned char da_range[8];	/* D/A output range for each channel */
-
 	short ao_data[8];	/* data output buffer */
 };
 
-/* The following macro to make it easy to access the private structure. */
-#define devpriv ((struct pci1723_private *)dev->private)
-
-#define this_board boardtypes
-
 /*
  * The pci1723 card reset;
  */
 static int pci1723_reset(struct comedi_device *dev)
 {
+	struct pci1723_private *devpriv = dev->private;
 	int i;
-	DPRINTK("adv_pci1723 EDBG: BGN: pci1723_reset(...)\n");
 
 	outw(0x01, dev->iobase + PCI1723_SYN_SET);
 					       /* set synchronous output mode */
@@ -190,7 +140,6 @@ static int pci1723_reset(struct comedi_device *dev)
 	/* set asynchronous output mode */
 	outw(0, dev->iobase + PCI1723_SYN_SET);
 
-	DPRINTK("adv_pci1723 EDBG: END: pci1723_reset(...)\n");
 	return 0;
 }
 
@@ -198,10 +147,10 @@ static int pci1723_insn_read_ao(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci1723_private *devpriv = dev->private;
 	int n, chan;
 
 	chan = CR_CHAN(insn->chanspec);
-	DPRINTK(" adv_PCI1723 DEBUG: pci1723_insn_read_ao() -----\n");
 	for (n = 0; n < insn->n; n++)
 		data[n] = devpriv->ao_data[chan];
 
@@ -215,11 +164,10 @@ static int pci1723_ao_write_winsn(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci1723_private *devpriv = dev->private;
 	int n, chan;
 	chan = CR_CHAN(insn->chanspec);
 
-	DPRINTK("PCI1723: the pci1723_ao_write_winsn() ------\n");
-
 	for (n = 0; n < insn->n; n++) {
 
 		devpriv->ao_data[chan] = data[n];
@@ -286,126 +234,73 @@ static int pci1723_dio_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static struct pci_dev *pci1723_find_pci_dev(struct comedi_device *dev,
-					    struct comedi_devconfig *it)
+static int pci1723_attach_pci(struct comedi_device *dev,
+			      struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-			    slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_ADVANTECH)
-			continue;
-		if (pci_is_enabled(pcidev))
-			continue;
-		return pcidev;
-	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
-	return NULL;
-}
-
-static int pci1723_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
+	struct pci1723_private *devpriv;
 	struct comedi_subdevice *s;
-	int ret, subdev, n_subdevices;
+	int ret;
 
-	printk(KERN_ERR "comedi%d: adv_pci1723: board=%s",
-						dev->minor, this_board->name);
-
-	ret = alloc_private(dev, sizeof(struct pci1723_private));
-	if (ret < 0) {
-		printk(" - Allocation failed!\n");
-		return -ENOMEM;
-	}
-
-	pcidev = pci1723_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
 	comedi_set_hw_dev(dev, &pcidev->dev);
+	dev->board_name = dev->driver->driver_name;
 
-	ret = comedi_pci_enable(pcidev, "adv_pci1723");
-	if (ret)
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret < 0)
 		return ret;
+	devpriv = dev->private;
 
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
 	dev->iobase = pci_resource_start(pcidev, 2);
 
-	dev->board_name = this_board->name;
-
-	n_subdevices = 0;
-
-	if (this_board->n_aochan)
-		n_subdevices++;
-	if (this_board->n_diochan)
-		n_subdevices++;
-
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
+	ret = comedi_alloc_subdevices(dev, 2);
 	if (ret)
 		return ret;
 
-	pci1723_reset(dev);
-	subdev = 0;
-	if (this_board->n_aochan) {
-		s = dev->subdevices + subdev;
-		dev->write_subdev = s;
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = this_board->n_aochan;
-		s->maxdata = this_board->ao_maxdata;
-		s->len_chanlist = this_board->n_aochan;
-		s->range_table = this_board->rangelist_ao;
-
-		s->insn_write = pci1723_ao_write_winsn;
-		s->insn_read = pci1723_insn_read_ao;
-
-		/* read DIO config */
-		switch (inw(dev->iobase + PCI1723_DIGITAL_IO_PORT_MODE)
-								       & 0x03) {
-		case 0x00:	/* low byte output, high byte output */
-			s->io_bits = 0xFFFF;
-			break;
-		case 0x01:	/* low byte input, high byte output */
-			s->io_bits = 0xFF00;
-			break;
-		case 0x02:	/* low byte output, high byte input */
-			s->io_bits = 0x00FF;
-			break;
-		case 0x03:	/* low byte input, high byte input */
-			s->io_bits = 0x0000;
-			break;
-		}
-		/* read DIO port state */
-		s->state = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
-
-		subdev++;
-	}
-
-	if (this_board->n_diochan) {
-		s = dev->subdevices + subdev;
-		s->type = COMEDI_SUBD_DIO;
-		s->subdev_flags =
-		    SDF_READABLE | SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = this_board->n_diochan;
-		s->maxdata = 1;
-		s->len_chanlist = this_board->n_diochan;
-		s->range_table = &range_digital;
-		s->insn_config = pci1723_dio_insn_config;
-		s->insn_bits = pci1723_dio_insn_bits;
-		subdev++;
+	s = &dev->subdevices[0];
+	dev->write_subdev = s;
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
+	s->n_chan	= 8;
+	s->maxdata	= 0xffff;
+	s->len_chanlist	= 8;
+	s->range_table	= &range_bipolar10;
+	s->insn_write	= pci1723_ao_write_winsn;
+	s->insn_read	= pci1723_insn_read_ao;
+
+	s = &dev->subdevices[1];
+	s->type		= COMEDI_SUBD_DIO;
+	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->len_chanlist	= 16;
+	s->range_table	= &range_digital;
+	s->insn_config	= pci1723_dio_insn_config;
+	s->insn_bits	= pci1723_dio_insn_bits;
+
+	/* read DIO config */
+	switch (inw(dev->iobase + PCI1723_DIGITAL_IO_PORT_MODE) & 0x03) {
+	case 0x00:	/* low byte output, high byte output */
+		s->io_bits = 0xFFFF;
+		break;
+	case 0x01:	/* low byte input, high byte output */
+		s->io_bits = 0xFF00;
+		break;
+	case 0x02:	/* low byte output, high byte input */
+		s->io_bits = 0x00FF;
+		break;
+	case 0x03:	/* low byte input, high byte input */
+		s->io_bits = 0x0000;
+		break;
 	}
-
-	devpriv->valid = 1;
+	/* read DIO port state */
+	s->state = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
 
 	pci1723_reset(dev);
 
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
+
 	return 0;
 }
 
@@ -413,21 +308,18 @@ static void pci1723_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
-	if (dev->private) {
-		if (devpriv->valid)
-			pci1723_reset(dev);
-	}
 	if (pcidev) {
-		if (dev->iobase)
+		if (dev->iobase) {
+			pci1723_reset(dev);
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
+		}
 	}
 }
 
 static struct comedi_driver adv_pci1723_driver = {
 	.driver_name	= "adv_pci1723",
 	.module		= THIS_MODULE,
-	.attach		= pci1723_attach,
+	.attach_pci	= pci1723_attach_pci,
 	.detach		= pci1723_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 97f06dc8e48..a3c22419cd5 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -36,15 +36,6 @@ Configuration options:
 #include "8255.h"
 #include "8253.h"
 
-#undef PCI_DIO_EXTDEBUG		/* if defined, enable extensive debug logging */
-
-#undef DPRINTK
-#ifdef PCI_DIO_EXTDEBUG
-#define DPRINTK(fmt, args...) printk(fmt, ## args)
-#else
-#define DPRINTK(fmt, args...)
-#endif
-
 #define PCI_VENDOR_ID_ADVANTECH		0x13fe
 
 /* hardware types of the cards */
@@ -250,6 +241,7 @@ struct dio_boardtype {
 	int device_id;
 	int main_pci_region;	/*  main I/O PCI region */
 	enum hw_cards_id cardtype;
+	int nsubdevs;
 	struct diosubd_data sdi[MAX_DI_SUBDEVS];	/*  DI chans */
 	struct diosubd_data sdo[MAX_DO_SUBDEVS];	/*  DO chans */
 	struct diosubd_data sdio[MAX_DIO_SUBDEVG];	/*  DIO 8255 chans */
@@ -259,126 +251,164 @@ struct dio_boardtype {
 };
 
 static const struct dio_boardtype boardtypes[] = {
-	{"pci1730", PCI_VENDOR_ID_ADVANTECH, 0x1730, PCIDIO_MAINREG,
-	 TYPE_PCI1730,
-	 { {16, PCI1730_DI, 2, 0}, {16, PCI1730_IDI, 2, 0} },
-	 { {16, PCI1730_DO, 2, 0}, {16, PCI1730_IDO, 2, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI173x_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1733", PCI_VENDOR_ID_ADVANTECH, 0x1733, PCIDIO_MAINREG,
-	 TYPE_PCI1733,
-	 { {0, 0, 0, 0}, {32, PCI1733_IDI, 4, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI173x_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1734", PCI_VENDOR_ID_ADVANTECH, 0x1734, PCIDIO_MAINREG,
-	 TYPE_PCI1734,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {32, PCI1734_IDO, 4, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI173x_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1735", PCI_VENDOR_ID_ADVANTECH, 0x1735, PCIDIO_MAINREG,
-	 TYPE_PCI1735,
-	 { {32, PCI1735_DI, 4, 0}, {0, 0, 0, 0} },
-	 { {32, PCI1735_DO, 4, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { 4, PCI1735_BOARDID, 1, SDF_INTERNAL},
-	 { {3, PCI1735_C8254, 1, 0} },
-	 IO_8b},
-	{"pci1736", PCI_VENDOR_ID_ADVANTECH, 0x1736, PCI1736_MAINREG,
-	 TYPE_PCI1736,
-	 { {0, 0, 0, 0}, {16, PCI1736_IDI, 2, 0} },
-	 { {0, 0, 0, 0}, {16, PCI1736_IDO, 2, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI1736_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1739", PCI_VENDOR_ID_ADVANTECH, 0x1739, PCIDIO_MAINREG,
-	 TYPE_PCI1739,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {48, PCI1739_DIO, 2, 0}, {0, 0, 0, 0} },
-	 {0, 0, 0, 0},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1750", PCI_VENDOR_ID_ADVANTECH, 0x1750, PCIDIO_MAINREG,
-	 TYPE_PCI1750,
-	 { {0, 0, 0, 0}, {16, PCI1750_IDI, 2, 0} },
-	 { {0, 0, 0, 0}, {16, PCI1750_IDO, 2, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {0, 0, 0, 0},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1751", PCI_VENDOR_ID_ADVANTECH, 0x1751, PCIDIO_MAINREG,
-	 TYPE_PCI1751,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {48, PCI1751_DIO, 2, 0}, {0, 0, 0, 0} },
-	 {0, 0, 0, 0},
-	 { {3, PCI1751_CNT, 1, 0} },
-	 IO_8b},
-	{"pci1752", PCI_VENDOR_ID_ADVANTECH, 0x1752, PCIDIO_MAINREG,
-	 TYPE_PCI1752,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {32, PCI1752_IDO, 2, 0}, {32, PCI1752_IDO2, 2, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI175x_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_16b},
-	{"pci1753", PCI_VENDOR_ID_ADVANTECH, 0x1753, PCIDIO_MAINREG,
-	 TYPE_PCI1753,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {96, PCI1753_DIO, 4, 0}, {0, 0, 0, 0} },
-	 {0, 0, 0, 0},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1753e", PCI_VENDOR_ID_ADVANTECH, 0x1753, PCIDIO_MAINREG,
-	 TYPE_PCI1753E,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {96, PCI1753_DIO, 4, 0}, {96, PCI1753E_DIO, 4, 0} },
-	 {0, 0, 0, 0},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1754", PCI_VENDOR_ID_ADVANTECH, 0x1754, PCIDIO_MAINREG,
-	 TYPE_PCI1754,
-	 { {32, PCI1754_IDI, 2, 0}, {32, PCI1754_IDI2, 2, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI175x_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_16b},
-	{"pci1756", PCI_VENDOR_ID_ADVANTECH, 0x1756, PCIDIO_MAINREG,
-	 TYPE_PCI1756,
-	 { {0, 0, 0, 0}, {32, PCI1756_IDI, 2, 0} },
-	 { {0, 0, 0, 0}, {32, PCI1756_IDO, 2, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI175x_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_16b},
-	{"pci1760", PCI_VENDOR_ID_ADVANTECH, 0x1760, 0,
-	 TYPE_PCI1760,
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} }, /* This card have own setup work */
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {0, 0, 0, 0},
-	 { {0, 0, 0, 0} },
-	 IO_8b},
-	{"pci1762", PCI_VENDOR_ID_ADVANTECH, 0x1762, PCIDIO_MAINREG,
-	 TYPE_PCI1762,
-	 { {0, 0, 0, 0}, {16, PCI1762_IDI, 1, 0} },
-	 { {0, 0, 0, 0}, {16, PCI1762_RO, 1, 0} },
-	 { {0, 0, 0, 0}, {0, 0, 0, 0} },
-	 {4, PCI1762_BOARDID, 1, SDF_INTERNAL},
-	 { {0, 0, 0, 0} },
-	 IO_16b}
+	{
+		.name		= "pci1730",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1730,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1730,
+		.nsubdevs	= 5,
+		.sdi[0]		= { 16, PCI1730_DI, 2, 0, },
+		.sdi[1]		= { 16, PCI1730_IDI, 2, 0, },
+		.sdo[0]		= { 16, PCI1730_DO, 2, 0, },
+		.sdo[1]		= { 16, PCI1730_IDO, 2, 0, },
+		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1733",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1733,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1733,
+		.nsubdevs	= 2,
+		.sdi[1]		= { 32, PCI1733_IDI, 4, 0, },
+		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1734",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1734,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1734,
+		.nsubdevs	= 2,
+		.sdo[1]		= { 32, PCI1734_IDO, 4, 0, },
+		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1735",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1735,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1735,
+		.nsubdevs	= 4,
+		.sdi[0]		= { 32, PCI1735_DI, 4, 0, },
+		.sdo[0]		= { 32, PCI1735_DO, 4, 0, },
+		.boardid	= { 4, PCI1735_BOARDID, 1, SDF_INTERNAL, },
+		.s8254[0]	= { 3, PCI1735_C8254, 1, 0, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1736",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1736,
+		.main_pci_region = PCI1736_MAINREG,
+		.cardtype	= TYPE_PCI1736,
+		.nsubdevs	= 3,
+		.sdi[1]		= { 16, PCI1736_IDI, 2, 0, },
+		.sdo[1]		= { 16, PCI1736_IDO, 2, 0, },
+		.boardid	= { 4, PCI1736_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1739",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1739,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1739,
+		.nsubdevs	= 2,
+		.sdio[0]	= { 48, PCI1739_DIO, 2, 0, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1750",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1750,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1750,
+		.nsubdevs	= 2,
+		.sdi[1]		= { 16, PCI1750_IDI, 2, 0, },
+		.sdo[1]		= { 16, PCI1750_IDO, 2, 0, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1751",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1751,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1751,
+		.nsubdevs	= 3,
+		.sdio[0]	= { 48, PCI1751_DIO, 2, 0, },
+		.s8254[0]	= { 3, PCI1751_CNT, 1, 0, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1752",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1752,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1752,
+		.nsubdevs	= 3,
+		.sdo[0]		= { 32, PCI1752_IDO, 2, 0, },
+		.sdo[1]		= { 32, PCI1752_IDO2, 2, 0, },
+		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_16b,
+	}, {
+		.name		= "pci1753",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1753,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1753,
+		.nsubdevs	= 4,
+		.sdio[0]	= { 96, PCI1753_DIO, 4, 0, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1753e",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1753,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1753E,
+		.nsubdevs	= 8,
+		.sdio[0]	= { 96, PCI1753_DIO, 4, 0, },
+		.sdio[1]	= { 96, PCI1753E_DIO, 4, 0, },
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1754",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1754,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1754,
+		.nsubdevs	= 3,
+		.sdi[0]		= { 32, PCI1754_IDI, 2, 0, },
+		.sdi[1]		= { 32, PCI1754_IDI2, 2, 0, },
+		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_16b,
+	}, {
+		.name		= "pci1756",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1756,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1756,
+		.nsubdevs	= 3,
+		.sdi[1]		= { 32, PCI1756_IDI, 2, 0, },
+		.sdo[1]		= { 32, PCI1756_IDO, 2, 0, },
+		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_16b,
+	}, {
+		/* This card has its own 'attach' */
+		.name		= "pci1760",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1760,
+		.main_pci_region = 0,
+		.cardtype	= TYPE_PCI1760,
+		.nsubdevs	= 4,
+		.io_access	= IO_8b,
+	}, {
+		.name		= "pci1762",
+		.vendor_id	= PCI_VENDOR_ID_ADVANTECH,
+		.device_id	= 0x1762,
+		.main_pci_region = PCIDIO_MAINREG,
+		.cardtype	= TYPE_PCI1762,
+		.nsubdevs	= 3,
+		.sdi[1]		= { 16, PCI1762_IDI, 1, 0, },
+		.sdo[1]		= { 16, PCI1762_RO, 1, 0, },
+		.boardid	= { 4, PCI1762_BOARDID, 1, SDF_INTERNAL, },
+		.io_access	= IO_16b,
+	},
 };
 
 struct pci_dio_private {
@@ -401,9 +431,6 @@ struct pci_dio_private {
 	unsigned short IDIFiltrHigh[8];	/*  IDI's filter value high signal */
 };
 
-#define devpriv ((struct pci_dio_private *)dev->private)
-#define this_board ((const struct dio_boardtype *)dev->board_ptr)
-
 /*
 ==============================================================================
 */
@@ -694,6 +721,7 @@ static int pci1760_insn_cnt_write(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
+	struct pci_dio_private *devpriv = dev->private;
 	int ret;
 	unsigned char chan = CR_CHAN(insn->chanspec) & 0x07;
 	unsigned char bitmask = 1 << chan;
@@ -736,6 +764,7 @@ static int pci1760_insn_cnt_write(struct comedi_device *dev,
 */
 static int pci1760_reset(struct comedi_device *dev)
 {
+	struct pci_dio_private *devpriv = dev->private;
 	int i;
 	unsigned char omb[4] = { 0x00, 0x00, 0x00, 0x00 };
 	unsigned char imb[4];
@@ -816,7 +845,7 @@ static int pci1760_reset(struct comedi_device *dev)
 */
 static int pci_dio_reset(struct comedi_device *dev)
 {
-	DPRINTK("adv_pci_dio EDBG: BGN: pci171x_reset(...)\n");
+	const struct dio_boardtype *this_board = comedi_board(dev);
 
 	switch (this_board->cardtype) {
 	case TYPE_PCI1730:
@@ -917,21 +946,17 @@ static int pci_dio_reset(struct comedi_device *dev)
 		break;
 	}
 
-	DPRINTK("adv_pci_dio EDBG: END: pci171x_reset(...)\n");
-
 	return 0;
 }
 
 /*
 ==============================================================================
 */
-static int pci1760_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static int pci1760_attach(struct comedi_device *dev)
 {
 	struct comedi_subdevice *s;
-	int subdev = 0;
 
-	s = dev->subdevices + subdev;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON;
 	s->n_chan = 8;
@@ -939,9 +964,8 @@ static int pci1760_attach(struct comedi_device *dev,
 	s->len_chanlist = 8;
 	s->range_table = &range_digital;
 	s->insn_bits = pci1760_insn_bits_di;
-	subdev++;
 
-	s = dev->subdevices + subdev;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
 	s->n_chan = 8;
@@ -950,18 +974,16 @@ static int pci1760_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->state = 0;
 	s->insn_bits = pci1760_insn_bits_do;
-	subdev++;
 
-	s = dev->subdevices + subdev;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_TIMER;
 	s->subdev_flags = SDF_WRITABLE | SDF_LSAMPL;
 	s->n_chan = 2;
 	s->maxdata = 0xffffffff;
 	s->len_chanlist = 2;
 /*       s->insn_config=pci1760_insn_pwm_cfg; */
-	subdev++;
 
-	s = dev->subdevices + subdev;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 8;
@@ -970,7 +992,6 @@ static int pci1760_attach(struct comedi_device *dev,
 	s->insn_read = pci1760_insn_cnt_read;
 	s->insn_write = pci1760_insn_cnt_write;
 /*       s->insn_config=pci1760_insn_cnt_cfg; */
-	subdev++;
 
 	return 0;
 }
@@ -978,9 +999,12 @@ static int pci1760_attach(struct comedi_device *dev,
 /*
 ==============================================================================
 */
-static int pci_dio_add_di(struct comedi_device *dev, struct comedi_subdevice *s,
-			  const struct diosubd_data *d, int subdev)
+static int pci_dio_add_di(struct comedi_device *dev,
+			  struct comedi_subdevice *s,
+			  const struct diosubd_data *d)
 {
+	const struct dio_boardtype *this_board = comedi_board(dev);
+
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_COMMON | d->specflags;
 	if (d->chans > 16)
@@ -1005,9 +1029,12 @@ static int pci_dio_add_di(struct comedi_device *dev, struct comedi_subdevice *s,
 /*
 ==============================================================================
 */
-static int pci_dio_add_do(struct comedi_device *dev, struct comedi_subdevice *s,
-			  const struct diosubd_data *d, int subdev)
+static int pci_dio_add_do(struct comedi_device *dev,
+			  struct comedi_subdevice *s,
+			  const struct diosubd_data *d)
 {
+	const struct dio_boardtype *this_board = comedi_board(dev);
+
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
 	if (d->chans > 16)
@@ -1035,7 +1062,7 @@ static int pci_dio_add_do(struct comedi_device *dev, struct comedi_subdevice *s,
 */
 static int pci_dio_add_8254(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    const struct diosubd_data *d, int subdev)
+			    const struct diosubd_data *d)
 {
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
@@ -1050,103 +1077,69 @@ static int pci_dio_add_8254(struct comedi_device *dev,
 	return 0;
 }
 
-static struct pci_dev *pci_dio_find_pci_dev(struct comedi_device *dev,
-					    struct comedi_devconfig *it)
+static const void *pci_dio_find_boardinfo(struct comedi_device *dev,
+					  struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
+	const struct dio_boardtype *this_board;
 	int i;
 
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-			    slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pci_is_enabled(pcidev))
-			continue;
-		for (i = 0; i < ARRAY_SIZE(boardtypes); ++i) {
-			if (boardtypes[i].vendor_id != pcidev->vendor)
-				continue;
-			if (boardtypes[i].device_id != pcidev->device)
-				continue;
-			dev->board_ptr = boardtypes + i;
-			return pcidev;
-		}
+	for (i = 0; i < ARRAY_SIZE(boardtypes); ++i) {
+		this_board = &boardtypes[i];
+		if (this_board->vendor_id == pcidev->vendor &&
+		    this_board->device_id == pcidev->device)
+			return this_board;
 	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
 	return NULL;
 }
 
-static int pci_dio_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static int pci_dio_attach_pci(struct comedi_device *dev,
+			      struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev;
+	const struct dio_boardtype *this_board;
+	struct pci_dio_private *devpriv;
 	struct comedi_subdevice *s;
-	int ret, subdev, n_subdevices, i, j;
+	int ret, subdev, i, j;
 
-	ret = alloc_private(dev, sizeof(struct pci_dio_private));
-	if (ret < 0)
-		return -ENOMEM;
-
-	pcidev = pci_dio_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
 	comedi_set_hw_dev(dev, &pcidev->dev);
 
-	if (comedi_pci_enable(pcidev, dev->driver->driver_name)) {
-		dev_err(dev->class_dev,
-			"Error: Can't enable PCI device and request regions!\n");
-		return -EIO;
-	}
-
-	dev->iobase = pci_resource_start(pcidev, this_board->main_pci_region);
+	this_board = pci_dio_find_boardinfo(dev, pcidev);
+	if (!this_board)
+		return -ENODEV;
+	dev->board_ptr = this_board;
 	dev->board_name = this_board->name;
 
-	if (this_board->cardtype == TYPE_PCI1760) {
-		n_subdevices = 4;	/*  8 IDI, 8 IDO, 2 PWM, 8 CNT */
-	} else {
-		n_subdevices = 0;
-		for (i = 0; i < MAX_DI_SUBDEVS; i++)
-			if (this_board->sdi[i].chans)
-				n_subdevices++;
-		for (i = 0; i < MAX_DO_SUBDEVS; i++)
-			if (this_board->sdo[i].chans)
-				n_subdevices++;
-		for (i = 0; i < MAX_DIO_SUBDEVG; i++)
-			n_subdevices += this_board->sdio[i].regs;
-		if (this_board->boardid.chans)
-			n_subdevices++;
-		for (i = 0; i < MAX_8254_SUBDEVS; i++)
-			if (this_board->s8254[i].chans)
-				n_subdevices++;
-	}
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret < 0)
+		return ret;
+	devpriv = dev->private;
 
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	dev->iobase = pci_resource_start(pcidev, this_board->main_pci_region);
+
+	ret = comedi_alloc_subdevices(dev, this_board->nsubdevs);
 	if (ret)
 		return ret;
 
 	subdev = 0;
 	for (i = 0; i < MAX_DI_SUBDEVS; i++)
 		if (this_board->sdi[i].chans) {
-			s = dev->subdevices + subdev;
-			pci_dio_add_di(dev, s, &this_board->sdi[i], subdev);
+			s = &dev->subdevices[subdev];
+			pci_dio_add_di(dev, s, &this_board->sdi[i]);
 			subdev++;
 		}
 
 	for (i = 0; i < MAX_DO_SUBDEVS; i++)
 		if (this_board->sdo[i].chans) {
-			s = dev->subdevices + subdev;
-			pci_dio_add_do(dev, s, &this_board->sdo[i], subdev);
+			s = &dev->subdevices[subdev];
+			pci_dio_add_do(dev, s, &this_board->sdo[i]);
 			subdev++;
 		}
 
 	for (i = 0; i < MAX_DIO_SUBDEVG; i++)
 		for (j = 0; j < this_board->sdio[i].regs; j++) {
-			s = dev->subdevices + subdev;
+			s = &dev->subdevices[subdev];
 			subdev_8255_init(dev, s, NULL,
 					 dev->iobase +
 					 this_board->sdio[i].addr +
@@ -1155,21 +1148,21 @@ static int pci_dio_attach(struct comedi_device *dev,
 		}
 
 	if (this_board->boardid.chans) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_DI;
-		pci_dio_add_di(dev, s, &this_board->boardid, subdev);
+		pci_dio_add_di(dev, s, &this_board->boardid);
 		subdev++;
 	}
 
 	for (i = 0; i < MAX_8254_SUBDEVS; i++)
 		if (this_board->s8254[i].chans) {
-			s = dev->subdevices + subdev;
-			pci_dio_add_8254(dev, s, &this_board->s8254[i], subdev);
+			s = &dev->subdevices[subdev];
+			pci_dio_add_8254(dev, s, &this_board->s8254[i]);
 			subdev++;
 		}
 
 	if (this_board->cardtype == TYPE_PCI1760)
-		pci1760_attach(dev, it);
+		pci1760_attach(dev);
 
 	devpriv->valid = 1;
 
@@ -1180,52 +1173,34 @@ static int pci_dio_attach(struct comedi_device *dev,
 
 static void pci_dio_detach(struct comedi_device *dev)
 {
+	struct pci_dio_private *devpriv = dev->private;
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	int i, j;
 	struct comedi_subdevice *s;
-	int subdev;
+	int i;
 
-	if (dev->private) {
+	if (devpriv) {
 		if (devpriv->valid)
 			pci_dio_reset(dev);
-		subdev = 0;
-		for (i = 0; i < MAX_DI_SUBDEVS; i++) {
-			if (this_board->sdi[i].chans)
-				subdev++;
-		}
-		for (i = 0; i < MAX_DO_SUBDEVS; i++) {
-			if (this_board->sdo[i].chans)
-				subdev++;
-		}
-		for (i = 0; i < MAX_DIO_SUBDEVG; i++) {
-			for (j = 0; j < this_board->sdio[i].regs; j++) {
-				s = dev->subdevices + subdev;
-				subdev_8255_cleanup(dev, s);
-				subdev++;
-			}
-		}
-		if (this_board->boardid.chans)
-			subdev++;
-		for (i = 0; i < MAX_8254_SUBDEVS; i++)
-			if (this_board->s8254[i].chans)
-				subdev++;
+	}
+	if (dev->subdevices) {
 		for (i = 0; i < dev->n_subdevices; i++) {
-			s = dev->subdevices + i;
+			s = &dev->subdevices[i];
+			if (s->type == COMEDI_SUBD_DIO)
+				subdev_8255_cleanup(dev, s);
 			s->private = NULL;
 		}
 	}
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver adv_pci_dio_driver = {
 	.driver_name	= "adv_pci_dio",
 	.module		= THIS_MODULE,
-	.attach		= pci_dio_attach,
-	.detach		= pci_dio_detach
+	.attach_pci	= pci_dio_attach_pci,
+	.detach		= pci_dio_detach,
 };
 
 static int __devinit adv_pci_dio_pci_probe(struct pci_dev *dev,
diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index f7d453f8fe3..8acf60d0f20 100644
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ b/drivers/staging/comedi/drivers/aio_aio12_8.c
@@ -25,8 +25,9 @@
 Driver: aio_aio12_8
 Description: Access I/O Products PC-104 AIO12-8 Analog I/O Board
 Author: Pablo Mejia <pablo.mejia@cctechnol.com>
-Devices:
- [Access I/O] PC-104 AIO12-8
+Devices: [Access I/O] PC-104 AIO12-8 (aio_aio12_8)
+	 [Access I/O] PC-104 AI12-8 (aio_ai12_8)
+	 [Access I/O] PC-104 AO12-8 (aio_ao12_8)
 Status: experimental
 
 Configuration Options:
@@ -42,91 +43,118 @@ Notes:
 #include <linux/ioport.h>
 #include "8255.h"
 
-#define AIO12_8_STATUS			0x00
-#define AIO12_8_INTERRUPT		0x01
-#define AIO12_8_ADC			0x02
-#define AIO12_8_DAC_0			0x04
-#define AIO12_8_DAC_1			0x06
-#define AIO12_8_DAC_2			0x08
-#define AIO12_8_DAC_3			0x0A
-#define AIO12_8_COUNTER_0		0x0C
-#define AIO12_8_COUNTER_1		0x0D
-#define AIO12_8_COUNTER_2		0x0E
-#define AIO12_8_COUNTER_CONTROL		0x0F
-#define AIO12_8_DIO_0			0x10
-#define AIO12_8_DIO_1			0x11
-#define AIO12_8_DIO_2			0x12
-#define AIO12_8_DIO_STATUS		0x13
-#define AIO12_8_DIO_CONTROL		0x14
-#define AIO12_8_ADC_TRIGGER_CONTROL	0x15
-#define AIO12_8_TRIGGER			0x16
-#define AIO12_8_POWER			0x17
-
-#define STATUS_ADC_EOC			0x80
-
-#define ADC_MODE_NORMAL			0x00
-#define ADC_MODE_INTERNAL_CLOCK		0x40
-#define ADC_MODE_STANDBY		0x80
-#define ADC_MODE_POWERDOWN		0xC0
-
-#define DAC_ENABLE			0x18
+/*
+ * Register map
+ */
+#define AIO12_8_STATUS_REG		0x00
+#define AIO12_8_STATUS_ADC_EOC		(1 << 7)
+#define AIO12_8_STATUS_PORT_C_COS	(1 << 6)
+#define AIO12_8_STATUS_IRQ_ENA		(1 << 2)
+#define AIO12_8_INTERRUPT_REG		0x01
+#define AIO12_8_INTERRUPT_ADC		(1 << 7)
+#define AIO12_8_INTERRUPT_COS		(1 << 6)
+#define AIO12_8_INTERRUPT_COUNTER1	(1 << 5)
+#define AIO12_8_INTERRUPT_PORT_C3	(1 << 4)
+#define AIO12_8_INTERRUPT_PORT_C0	(1 << 3)
+#define AIO12_8_INTERRUPT_ENA		(1 << 2)
+#define AIO12_8_ADC_REG			0x02
+#define AIO12_8_ADC_MODE_NORMAL		(0 << 6)
+#define AIO12_8_ADC_MODE_INT_CLK	(1 << 6)
+#define AIO12_8_ADC_MODE_STANDBY	(2 << 6)
+#define AIO12_8_ADC_MODE_POWERDOWN	(3 << 6)
+#define AIO12_8_ADC_ACQ_3USEC		(0 << 5)
+#define AIO12_8_ADC_ACQ_PROGRAM		(1 << 5)
+#define AIO12_8_ADC_RANGE(x)		((x) << 3)
+#define AIO12_8_ADC_CHAN(x)		((x) << 0)
+#define AIO12_8_DAC_REG(x)		(0x04 + (x) * 2)
+#define AIO12_8_8254_BASE_REG		0x0c
+#define AIO12_8_8255_BASE_REG		0x10
+#define AIO12_8_DIO_CONTROL_REG		0x14
+#define AIO12_8_DIO_CONTROL_TST		(1 << 0)
+#define AIO12_8_ADC_TRIGGER_REG		0x15
+#define AIO12_8_ADC_TRIGGER_RANGE(x)	((x) << 3)
+#define AIO12_8_ADC_TRIGGER_CHAN(x)	((x) << 0)
+#define AIO12_8_TRIGGER_REG		0x16
+#define AIO12_8_TRIGGER_ADTRIG		(1 << 1)
+#define AIO12_8_TRIGGER_DACTRIG		(1 << 0)
+#define AIO12_8_COS_REG			0x17
+#define AIO12_8_DAC_ENABLE_REG		0x18
+#define AIO12_8_DAC_ENABLE_REF_ENA	(1 << 0)
 
 struct aio12_8_boardtype {
 	const char *name;
+	int ai_nchan;
+	int ao_nchan;
 };
 
 static const struct aio12_8_boardtype board_types[] = {
 	{
-	 .name = "aio_aio12_8"},
+		.name		= "aio_aio12_8",
+		.ai_nchan	= 8,
+		.ao_nchan	= 4,
+	}, {
+		.name		= "aio_ai12_8",
+		.ai_nchan	= 8,
+	}, {
+		.name		= "aio_ao12_8",
+		.ao_nchan	= 4,
+	},
 };
 
 struct aio12_8_private {
 	unsigned int ao_readback[4];
 };
 
-#define devpriv	((struct aio12_8_private *) dev->private)
-
 static int aio_aio12_8_ai_read(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int range = CR_RANGE(insn->chanspec);
+	unsigned int val;
+	unsigned char control;
 	int n;
-	unsigned char control =
-	    ADC_MODE_NORMAL |
-	    (CR_RANGE(insn->chanspec) << 3) | CR_CHAN(insn->chanspec);
 
-	/* read status to clear EOC latch */
-	inb(dev->iobase + AIO12_8_STATUS);
+	/*
+	 * Setup the control byte for internal 2MHz clock, 3uS conversion,
+	 * at the desired range of the requested channel.
+	 */
+	control = AIO12_8_ADC_MODE_NORMAL | AIO12_8_ADC_ACQ_3USEC |
+		  AIO12_8_ADC_RANGE(range) | AIO12_8_ADC_CHAN(chan);
+
+	/* Read status to clear EOC latch */
+	inb(dev->iobase + AIO12_8_STATUS_REG);
 
 	for (n = 0; n < insn->n; n++) {
 		int timeout = 5;
 
 		/*  Setup and start conversion */
-		outb(control, dev->iobase + AIO12_8_ADC);
+		outb(control, dev->iobase + AIO12_8_ADC_REG);
 
 		/*  Wait for conversion to complete */
-		while (timeout &&
-		       !(inb(dev->iobase + AIO12_8_STATUS) & STATUS_ADC_EOC)) {
+		do {
+			val = inb(dev->iobase + AIO12_8_STATUS_REG);
 			timeout--;
-			printk(KERN_ERR "timeout %d\n", timeout);
-			udelay(1);
-		}
-		if (timeout == 0) {
-			comedi_error(dev, "ADC timeout");
-			return -EIO;
-		}
-
-		data[n] = inw(dev->iobase + AIO12_8_ADC) & 0x0FFF;
+			if (timeout == 0) {
+				dev_err(dev->class_dev, "ADC timeout\n");
+				return -ETIMEDOUT;
+			}
+		} while (!(val & AIO12_8_STATUS_ADC_EOC));
+
+		data[n] = inw(dev->iobase + AIO12_8_ADC_REG) & s->maxdata;
 	}
-	return n;
+
+	return insn->n;
 }
 
 static int aio_aio12_8_ao_read(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	struct aio12_8_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int val = devpriv->ao_readback[chan];
 	int i;
-	int val = devpriv->ao_readback[CR_CHAN(insn->chanspec)];
 
 	for (i = 0; i < insn->n; i++)
 		data[i] = val;
@@ -137,18 +165,22 @@ static int aio_aio12_8_ao_write(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
+	struct aio12_8_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned long port = dev->iobase + AIO12_8_DAC_REG(chan);
+	unsigned int val = 0;
 	int i;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned long port = dev->iobase + AIO12_8_DAC_0 + (2 * chan);
 
 	/* enable DACs */
-	outb(0x01, dev->iobase + DAC_ENABLE);
+	outb(AIO12_8_DAC_ENABLE_REF_ENA, dev->iobase + AIO12_8_DAC_ENABLE_REG);
 
 	for (i = 0; i < insn->n; i++) {
-		outb(data[i] & 0xFF, port);	/*  LSB */
-		outb((data[i] >> 8) & 0x0F, port + 1);	/*  MSB */
-		devpriv->ao_readback[chan] = data[i];
+		val = data[i];
+		outw(val, port);
 	}
+
+	devpriv->ao_readback[chan] = val;
+
 	return insn->n;
 }
 
@@ -166,53 +198,77 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
 			      struct comedi_devconfig *it)
 {
 	const struct aio12_8_boardtype *board = comedi_board(dev);
-	int iobase;
+	struct aio12_8_private *devpriv;
 	struct comedi_subdevice *s;
+	int iobase;
 	int ret;
 
+	dev->board_name = board->name;
+
 	iobase = it->options[0];
-	if (!request_region(iobase, 24, "aio_aio12_8")) {
+	if (!request_region(iobase, 32, dev->board_name)) {
 		printk(KERN_ERR "I/O port conflict");
 		return -EIO;
 	}
-
-	dev->board_name = board->name;
-
 	dev->iobase = iobase;
 
-	if (alloc_private(dev, sizeof(struct aio12_8_private)) < 0)
-		return -ENOMEM;
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
 
-	ret = comedi_alloc_subdevices(dev, 3);
+	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
 
 	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan = 8;
-	s->maxdata = (1 << 12) - 1;
-	s->range_table = &range_aio_aio12_8;
-	s->insn_read = aio_aio12_8_ai_read;
+	if (board->ai_nchan) {
+		/* Analog input subdevice */
+		s->type		= COMEDI_SUBD_AI;
+		s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF;
+		s->n_chan	= board->ai_nchan;
+		s->maxdata	= 0x0fff;
+		s->range_table	= &range_aio_aio12_8;
+		s->insn_read	= aio_aio12_8_ai_read;
+	} else {
+		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan = 4;
-	s->maxdata = (1 << 12) - 1;
-	s->range_table = &range_aio_aio12_8;
-	s->insn_read = aio_aio12_8_ao_read;
-	s->insn_write = aio_aio12_8_ao_write;
+	if (board->ao_nchan) {
+		/* Analog output subdevice */
+		s->type		= COMEDI_SUBD_AO;
+		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_DIFF;
+		s->n_chan	= 4;
+		s->maxdata	= 0x0fff;
+		s->range_table	= &range_aio_aio12_8;
+		s->insn_read	= aio_aio12_8_ao_read;
+		s->insn_write	= aio_aio12_8_ao_write;
+	} else {
+		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	s = &dev->subdevices[2];
-	subdev_8255_init(dev, s, NULL, dev->iobase + AIO12_8_DIO_0);
+	/* 8255 Digital i/o subdevice */
+	iobase = dev->iobase + AIO12_8_8255_BASE_REG;
+	ret = subdev_8255_init(dev, s, NULL, iobase);
+	if (ret)
+		return ret;
+
+	s = &dev->subdevices[3];
+	/* 8254 counter/timer subdevice */
+	s->type		= COMEDI_SUBD_UNUSED;
+
+	dev_info(dev->class_dev, "%s: %s attached\n",
+		dev->driver->driver_name, dev->board_name);
 
 	return 0;
 }
 
 static void aio_aio12_8_detach(struct comedi_device *dev)
 {
-	subdev_8255_cleanup(dev, &dev->subdevices[2]);
+	if (dev->subdevices)
+		subdev_8255_cleanup(dev, &dev->subdevices[2]);
 	if (dev->iobase)
 		release_region(dev->iobase, 24);
 }
diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c
index ba1e3bbf2df..b2cb8b02b2a 100644
--- a/drivers/staging/comedi/drivers/aio_iiro_16.c
+++ b/drivers/staging/comedi/drivers/aio_iiro_16.c
@@ -112,7 +112,7 @@ static int aio_iiro_16_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->n_chan = 16;
@@ -120,7 +120,7 @@ static int aio_iiro_16_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = aio_iiro_16_dio_insn_bits_write;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 16;
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
index 6c81e377262..08f305210a6 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200.c
@@ -210,11 +210,15 @@ order they appear in the channel list.
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "8255.h"
 #include "8253.h"
 
 #define DIO200_DRIVER_NAME	"amplc_dio200"
 
+#define DO_ISA	IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA)
+#define DO_PCI	IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_PCI)
+
 /* PCI IDs */
 #define PCI_VENDOR_ID_AMPLICON 0x14dc
 #define PCI_DEVICE_ID_AMPLICON_PCI272 0x000a
@@ -272,12 +276,12 @@ enum dio200_model {
 };
 
 enum dio200_layout {
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA)
+#if DO_ISA
 	pc212_layout,
 	pc214_layout,
 #endif
 	pc215_layout,
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA)
+#if DO_ISA
 	pc218_layout,
 #endif
 	pc272_layout
@@ -292,7 +296,7 @@ struct dio200_board {
 };
 
 static const struct dio200_board dio200_boards[] = {
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA)
+#if DO_ISA
 	{
 	 .name = "pc212e",
 	 .bustype = isa_bustype,
@@ -324,7 +328,7 @@ static const struct dio200_board dio200_boards[] = {
 	 .layout = pc272_layout,
 	 },
 #endif
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_PCI)
+#if DO_PCI
 	{
 	 .name = "pci215",
 	 .devid = PCI_DEVICE_ID_AMPLICON_PCI215,
@@ -367,7 +371,7 @@ struct dio200_layout_struct {
 };
 
 static const struct dio200_layout_struct dio200_layouts[] = {
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA)
+#if DO_ISA
 	[pc212_layout] = {
 			  .n_subdevs = 6,
 			  .sdtype = {sd_8255, sd_8254, sd_8254, sd_8254,
@@ -396,7 +400,7 @@ static const struct dio200_layout_struct dio200_layouts[] = {
 			  .has_int_sce = 1,
 			  .has_clk_gat_sce = 1,
 			  },
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA)
+#if DO_ISA
 	[pc218_layout] = {
 			  .n_subdevs = 7,
 			  .sdtype = {sd_8254, sd_8254, sd_8255, sd_8254,
@@ -449,6 +453,16 @@ struct dio200_subdev_intr {
 	int continuous;
 };
 
+static inline bool is_pci_board(const struct dio200_board *board)
+{
+	return DO_PCI && board->bustype == pci_bustype;
+}
+
+static inline bool is_isa_board(const struct dio200_board *board)
+{
+	return DO_ISA && board->bustype == isa_bustype;
+}
+
 /*
  * This function looks for a board matching the supplied PCI device.
  */
@@ -458,7 +472,7 @@ dio200_find_pci_board(struct pci_dev *pci_dev)
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(dio200_boards); i++)
-		if (dio200_boards[i].bustype == pci_bustype &&
+		if (is_pci_board(&dio200_boards[i]) &&
 		    pci_dev->device == dio200_boards[i].devid)
 			return &dio200_boards[i];
 	return NULL;
@@ -758,52 +772,24 @@ dio200_subdev_intr_cmdtest(struct comedi_device *dev,
 			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
 	int err = 0;
-	unsigned int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= (TRIG_NOW | TRIG_INT);
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= (TRIG_COUNT | TRIG_NONE);
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually
-		   compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* these tests are true if more than one _src bit is set */
-	if ((cmd->start_src & (cmd->start_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_begin_src & (cmd->scan_begin_src - 1)) != 0)
-		err++;
-	if ((cmd->convert_src & (cmd->convert_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_end_src & (cmd->scan_end_src - 1)) != 0)
-		err++;
-	if ((cmd->stop_src & (cmd->stop_src - 1)) != 0)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -965,15 +951,15 @@ static irqreturn_t dio200_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
 	struct dio200_private *devpriv = dev->private;
+	struct comedi_subdevice *s;
 	int handled;
 
 	if (!dev->attached)
 		return IRQ_NONE;
 
 	if (devpriv->intr_sd >= 0) {
-		handled = dio200_handle_read_intr(dev,
-						  dev->subdevices +
-						  devpriv->intr_sd);
+		s = &dev->subdevices[devpriv->intr_sd];
+		handled = dio200_handle_read_intr(dev, s);
 	} else {
 		handled = 0;
 	}
@@ -1228,12 +1214,10 @@ static void dio200_report_attach(struct comedi_device *dev, unsigned int irq)
 	char tmpbuf[60];
 	int tmplen;
 
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA) &&
-	    thisboard->bustype == isa_bustype)
+	if (is_isa_board(thisboard))
 		tmplen = scnprintf(tmpbuf, sizeof(tmpbuf),
 				   "(base %#lx) ", dev->iobase);
-	else if (IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_PCI) &&
-		 thisboard->bustype == pci_bustype)
+	else if (is_pci_board(thisboard))
 		tmplen = scnprintf(tmpbuf, sizeof(tmpbuf),
 				   "(pci %s) ", pci_name(pcidev));
 	else
@@ -1361,8 +1345,7 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* Process options and reserve resources according to bus type. */
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_ISA) &&
-	    thisboard->bustype == isa_bustype) {
+	if (is_isa_board(thisboard)) {
 		unsigned long iobase;
 		unsigned int irq;
 
@@ -1372,8 +1355,7 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		if (ret < 0)
 			return ret;
 		return dio200_common_attach(dev, iobase, irq, 0);
-	} else if (IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_PCI) &&
-		   thisboard->bustype == pci_bustype) {
+	} else if (is_pci_board(thisboard)) {
 		struct pci_dev *pci_dev;
 
 		pci_dev = dio200_find_pci_dev(dev, it);
@@ -1397,7 +1379,7 @@ static int __devinit dio200_attach_pci(struct comedi_device *dev,
 {
 	int ret;
 
-	if (!IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_PCI))
+	if (!DO_PCI)
 		return -EINVAL;
 
 	dev_info(dev->class_dev, DIO200_DRIVER_NAME ": attach pci %s\n",
@@ -1412,13 +1394,19 @@ static int __devinit dio200_attach_pci(struct comedi_device *dev,
 		dev_err(dev->class_dev, "BUG! cannot determine board type!\n");
 		return -EINVAL;
 	}
+	/*
+	 * Need to 'get' the PCI device to match the 'put' in dio200_detach().
+	 * TODO: Remove the pci_dev_get() and matching pci_dev_put() once
+	 * support for manual attachment of PCI devices via dio200_attach()
+	 * has been removed.
+	 */
+	pci_dev_get(pci_dev);
 	return dio200_pci_common_attach(dev, pci_dev);
 }
 
 static void dio200_detach(struct comedi_device *dev)
 {
 	const struct dio200_board *thisboard = comedi_board(dev);
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	const struct dio200_layout_struct *layout;
 	unsigned n;
 
@@ -1443,13 +1431,16 @@ static void dio200_detach(struct comedi_device *dev)
 			}
 		}
 	}
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	} else {
+	if (is_isa_board(thisboard)) {
 		if (dev->iobase)
 			release_region(dev->iobase, DIO200_IO_SIZE);
+	} else if (is_pci_board(thisboard)) {
+		struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+		if (pcidev) {
+			if (dev->iobase)
+				comedi_pci_disable(pcidev);
+			pci_dev_put(pcidev);
+		}
 	}
 }
 
@@ -1470,7 +1461,7 @@ static struct comedi_driver amplc_dio200_driver = {
 	.num_names = ARRAY_SIZE(dio200_boards),
 };
 
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_DIO200_PCI)
+#if DO_PCI
 static DEFINE_PCI_DEVICE_TABLE(dio200_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI215) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI272) },
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
index aabba9886b7..eacb5e4735d 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236.c
@@ -56,11 +56,15 @@ unused.
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "8255.h"
 #include "plx9052.h"
 
 #define PC236_DRIVER_NAME	"amplc_pc236"
 
+#define DO_ISA	IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
+#define DO_PCI	IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
+
 /* PCI236 PCI configuration register information */
 #define PCI_VENDOR_ID_AMPLICON 0x14dc
 #define PCI_DEVICE_ID_AMPLICON_PCI236 0x0009
@@ -103,14 +107,14 @@ struct pc236_board {
 	enum pc236_model model;
 };
 static const struct pc236_board pc236_boards[] = {
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA)
+#if DO_ISA
 	{
 		.name = "pc36at",
 		.bustype = isa_bustype,
 		.model = pc36at_model,
 	},
 #endif
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
+#if DO_PCI
 	{
 		.name = "pci236",
 		.devid = PCI_DEVICE_ID_AMPLICON_PCI236,
@@ -135,6 +139,18 @@ struct pc236_private {
 	int enable_irq;
 };
 
+/* test if ISA supported and this is an ISA board */
+static inline bool is_isa_board(const struct pc236_board *board)
+{
+	return DO_ISA && board->bustype == isa_bustype;
+}
+
+/* test if PCI supported and this is a PCI board */
+static inline bool is_pci_board(const struct pc236_board *board)
+{
+	return DO_PCI && board->bustype == pci_bustype;
+}
+
 /*
  * This function looks for a board matching the supplied PCI device.
  */
@@ -143,7 +159,7 @@ static const struct pc236_board *pc236_find_pci_board(struct pci_dev *pci_dev)
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(pc236_boards); i++)
-		if (pc236_boards[i].bustype == pci_bustype &&
+		if (is_pci_board(&pc236_boards[i]) &&
 		    pci_dev->device == pc236_boards[i].devid)
 			return &pc236_boards[i];
 	return NULL;
@@ -214,12 +230,13 @@ static int pc236_request_region(struct comedi_device *dev, unsigned long from,
  */
 static void pc236_intr_disable(struct comedi_device *dev)
 {
+	const struct pc236_board *thisboard = comedi_board(dev);
 	struct pc236_private *devpriv = dev->private;
 	unsigned long flags;
 
 	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->enable_irq = 0;
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI) && devpriv->lcr_iobase)
+	if (is_pci_board(thisboard))
 		outl(PCI236_INTR_DISABLE, devpriv->lcr_iobase + PLX9052_INTCSR);
 	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
@@ -231,12 +248,13 @@ static void pc236_intr_disable(struct comedi_device *dev)
  */
 static void pc236_intr_enable(struct comedi_device *dev)
 {
+	const struct pc236_board *thisboard = comedi_board(dev);
 	struct pc236_private *devpriv = dev->private;
 	unsigned long flags;
 
 	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->enable_irq = 1;
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI) && devpriv->lcr_iobase)
+	if (is_pci_board(thisboard))
 		outl(PCI236_INTR_ENABLE, devpriv->lcr_iobase + PLX9052_INTCSR);
 	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
@@ -250,6 +268,7 @@ static void pc236_intr_enable(struct comedi_device *dev)
  */
 static int pc236_intr_check(struct comedi_device *dev)
 {
+	const struct pc236_board *thisboard = comedi_board(dev);
 	struct pc236_private *devpriv = dev->private;
 	int retval = 0;
 	unsigned long flags;
@@ -257,8 +276,7 @@ static int pc236_intr_check(struct comedi_device *dev)
 	spin_lock_irqsave(&dev->spinlock, flags);
 	if (devpriv->enable_irq) {
 		retval = 1;
-		if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI) &&
-		    devpriv->lcr_iobase) {
+		if (is_pci_board(thisboard)) {
 			if ((inl(devpriv->lcr_iobase + PLX9052_INTCSR)
 			     & PLX9052_INTCSR_LI1STAT_MASK)
 			    == PLX9052_INTCSR_LI1STAT_INACTIVE) {
@@ -296,39 +314,20 @@ static int pc236_intr_cmdtest(struct comedi_device *dev,
 			      struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
 
-	/* step 1 */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_FOLLOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: ignored */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -395,7 +394,7 @@ static int pc236_intr_cancel(struct comedi_device *dev,
 static irqreturn_t pc236_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 1;
+	struct comedi_subdevice *s = &dev->subdevices[1];
 	int handled;
 
 	handled = pc236_intr_check(dev);
@@ -414,15 +413,13 @@ static void pc236_report_attach(struct comedi_device *dev, unsigned int irq)
 	char tmpbuf[60];
 	int tmplen;
 
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA) &&
-	    thisboard->bustype == isa_bustype)
+	if (is_isa_board(thisboard))
 		tmplen = scnprintf(tmpbuf, sizeof(tmpbuf),
 				   "(base %#lx) ", dev->iobase);
-	else if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI) &&
-		 thisboard->bustype == pci_bustype) {
+	else if (is_pci_board(thisboard))
 		tmplen = scnprintf(tmpbuf, sizeof(tmpbuf),
 				   "(pci %s) ", pci_name(pcidev));
-	} else
+	else
 		tmplen = 0;
 	if (irq)
 		tmplen += scnprintf(&tmpbuf[tmplen], sizeof(tmpbuf) - tmplen,
@@ -449,14 +446,14 @@ static int pc236_common_attach(struct comedi_device *dev, unsigned long iobase,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* digital i/o subdevice (8255) */
 	ret = subdev_8255_init(dev, s, NULL, iobase);
 	if (ret < 0) {
 		dev_err(dev->class_dev, "error! out of memory!\n");
 		return ret;
 	}
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_UNUSED;
 	pc236_intr_disable(dev);
@@ -517,16 +514,14 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 	}
 	/* Process options according to bus type. */
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_ISA) &&
-	    thisboard->bustype == isa_bustype) {
+	if (is_isa_board(thisboard)) {
 		unsigned long iobase = it->options[0];
 		unsigned int irq = it->options[1];
 		ret = pc236_request_region(dev, iobase, PC236_IO_SIZE);
 		if (ret < 0)
 			return ret;
 		return pc236_common_attach(dev, iobase, irq, 0);
-	} else if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI) &&
-		   thisboard->bustype == pci_bustype) {
+	} else if (is_pci_board(thisboard)) {
 		struct pci_dev *pci_dev;
 
 		pci_dev = pc236_find_pci_dev(dev, it);
@@ -550,7 +545,7 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev,
 {
 	int ret;
 
-	if (!IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI))
+	if (!DO_PCI)
 		return -EINVAL;
 
 	dev_info(dev->class_dev, PC236_DRIVER_NAME ": attach pci %s\n",
@@ -565,27 +560,37 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev,
 		dev_err(dev->class_dev, "BUG! cannot determine board type!\n");
 		return -EINVAL;
 	}
+	/*
+	 * Need to 'get' the PCI device to match the 'put' in pc236_detach().
+	 * TODO: Remove the pci_dev_get() and matching pci_dev_put() once
+	 * support for manual attachment of PCI devices via pc236_attach()
+	 * has been removed.
+	 */
+	pci_dev_get(pci_dev);
 	return pc236_pci_common_attach(dev, pci_dev);
 }
 
 static void pc236_detach(struct comedi_device *dev)
 {
+	const struct pc236_board *thisboard = comedi_board(dev);
 	struct pc236_private *devpriv = dev->private;
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
 	if (devpriv)
 		pc236_intr_disable(dev);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 0);
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	} else {
+		subdev_8255_cleanup(dev, &dev->subdevices[0]);
+	if (is_isa_board(thisboard)) {
 		if (dev->iobase)
 			release_region(dev->iobase, PC236_IO_SIZE);
+	} else if (is_pci_board(thisboard)) {
+		struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+		if (pcidev) {
+			if (dev->iobase)
+				comedi_pci_disable(pcidev);
+			pci_dev_put(pcidev);
+		}
 	}
 }
 
@@ -606,7 +611,7 @@ static struct comedi_driver amplc_pc236_driver = {
 	.num_names = ARRAY_SIZE(pc236_boards),
 };
 
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC236_PCI)
+#if DO_PCI
 static DEFINE_PCI_DEVICE_TABLE(pc236_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI236) },
 	{0}
diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c
index 40ec1ffebba..60830ccfb90 100644
--- a/drivers/staging/comedi/drivers/amplc_pc263.c
+++ b/drivers/staging/comedi/drivers/amplc_pc263.c
@@ -48,6 +48,9 @@ The state of the outputs can be read.
 
 #define PC263_DRIVER_NAME	"amplc_pc263"
 
+#define DO_ISA	IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_ISA)
+#define DO_PCI	IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_PCI)
+
 /* PCI263 PCI configuration register information */
 #define PCI_VENDOR_ID_AMPLICON 0x14dc
 #define PCI_DEVICE_ID_AMPLICON_PCI263 0x000c
@@ -70,14 +73,14 @@ struct pc263_board {
 	enum pc263_model model;
 };
 static const struct pc263_board pc263_boards[] = {
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_ISA)
+#if DO_ISA
 	{
 		.name = "pc263",
 		.bustype = isa_bustype,
 		.model = pc263_model,
 	},
 #endif
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_PCI)
+#if DO_PCI
 	{
 		.name = "pci263",
 		.devid = PCI_DEVICE_ID_AMPLICON_PCI263,
@@ -93,6 +96,18 @@ static const struct pc263_board pc263_boards[] = {
 #endif
 };
 
+/* test if ISA supported and this is an ISA board */
+static inline bool is_isa_board(const struct pc263_board *board)
+{
+	return DO_ISA && board->bustype == isa_bustype;
+}
+
+/* test if PCI supported and this is a PCI board */
+static inline bool is_pci_board(const struct pc263_board *board)
+{
+	return DO_PCI && board->bustype == pci_bustype;
+}
+
 /*
  * This function looks for a board matching the supplied PCI device.
  */
@@ -101,7 +116,7 @@ static const struct pc263_board *pc263_find_pci_board(struct pci_dev *pci_dev)
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(pc263_boards); i++)
-		if (pc263_boards[i].bustype == pci_bustype &&
+		if (is_pci_board(&pc263_boards[i]) &&
 		    pci_dev->device == pc263_boards[i].devid)
 			return &pc263_boards[i];
 	return NULL;
@@ -187,11 +202,9 @@ static void pc263_report_attach(struct comedi_device *dev)
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	char tmpbuf[40];
 
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_ISA) &&
-	    thisboard->bustype == isa_bustype)
+	if (is_isa_board(thisboard))
 		snprintf(tmpbuf, sizeof(tmpbuf), "(base %#lx) ", dev->iobase);
-	else if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_PCI) &&
-		 thisboard->bustype == pci_bustype)
+	else if (is_pci_board(thisboard))
 		snprintf(tmpbuf, sizeof(tmpbuf), "(pci %s) ",
 			 pci_name(pcidev));
 	else
@@ -212,7 +225,7 @@ static int pc263_common_attach(struct comedi_device *dev, unsigned long iobase)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* digital output subdevice */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -259,15 +272,13 @@ static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev_info(dev->class_dev, PC263_DRIVER_NAME ": attach\n");
 
 	/* Process options and reserve resources according to bus type. */
-	if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_ISA) &&
-	    thisboard->bustype == isa_bustype) {
+	if (is_isa_board(thisboard)) {
 		unsigned long iobase = it->options[0];
 		ret = pc263_request_region(dev, iobase, PC263_IO_SIZE);
 		if (ret < 0)
 			return ret;
 		return pc263_common_attach(dev, iobase);
-	} else if (IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_PCI) &&
-		   thisboard->bustype == pci_bustype) {
+	} else if (is_pci_board(thisboard)) {
 		struct pci_dev *pci_dev;
 
 		pci_dev = pc263_find_pci_dev(dev, it);
@@ -288,7 +299,7 @@ static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static int __devinit pc263_attach_pci(struct comedi_device *dev,
 				      struct pci_dev *pci_dev)
 {
-	if (!IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_PCI))
+	if (!DO_PCI)
 		return -EINVAL;
 
 	dev_info(dev->class_dev, PC263_DRIVER_NAME ": attach pci %s\n",
@@ -298,20 +309,30 @@ static int __devinit pc263_attach_pci(struct comedi_device *dev,
 		dev_err(dev->class_dev, "BUG! cannot determine board type!\n");
 		return -EINVAL;
 	}
+	/*
+	 * Need to 'get' the PCI device to match the 'put' in pc263_detach().
+	 * TODO: Remove the pci_dev_get() and matching pci_dev_put() once
+	 * support for manual attachment of PCI devices via pc263_attach()
+	 * has been removed.
+	 */
+	pci_dev_get(pci_dev);
 	return pc263_pci_common_attach(dev, pci_dev);
 }
 
 static void pc263_detach(struct comedi_device *dev)
 {
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	const struct pc263_board *thisboard = comedi_board(dev);
 
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	} else {
+	if (is_isa_board(thisboard)) {
 		if (dev->iobase)
 			release_region(dev->iobase, PC263_IO_SIZE);
+	} else if (is_pci_board(thisboard)) {
+		struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+		if (pcidev) {
+			if (dev->iobase)
+				comedi_pci_disable(pcidev);
+			pci_dev_put(pcidev);
+		}
 	}
 }
 
@@ -332,7 +353,7 @@ static struct comedi_driver amplc_pc263_driver = {
 	.num_names = ARRAY_SIZE(pc263_boards),
 };
 
-#if IS_ENABLED(CONFIG_COMEDI_AMPLC_PC263_PCI)
+#if DO_PCI
 static DEFINE_PCI_DEVICE_TABLE(pc263_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI263) },
 	{0}
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 4e17f13e57f..1f65ec4d261 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -720,53 +720,31 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	int err = 0;
 	unsigned int tmp;
 
-	/* Step 1: make sure trigger sources are trivially valid. */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_INT | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT | TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_EXT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_EXT | TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* Step 2: make sure trigger sources are unique and mutually
-	 * compatible. */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* these tests are true if more than one _src bit is set */
-	if ((cmd->start_src & (cmd->start_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_begin_src & (cmd->scan_begin_src - 1)) != 0)
-		err++;
-	if ((cmd->convert_src & (cmd->convert_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_end_src & (cmd->scan_end_src - 1)) != 0)
-		err++;
-	if ((cmd->stop_src & (cmd->stop_src - 1)) != 0)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
-	/* There's only one external trigger signal (which makes these
-	 * tests easier).  Only one thing can use it. */
+	/*
+	 * There's only one external trigger signal (which makes these
+	 * tests easier).  Only one thing can use it.
+	 */
 	tmp = 0;
 	if (cmd->start_src & TRIG_EXT)
 		tmp++;
@@ -775,7 +753,7 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (cmd->stop_src & TRIG_EXT)
 		tmp++;
 	if (tmp > 1)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -1375,7 +1353,7 @@ static int pci224_attach_common(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* Analog output subdevice. */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE;
@@ -1503,6 +1481,13 @@ pci224_attach_pci(struct comedi_device *dev, struct pci_dev *pci_dev)
 			DRIVER_NAME ": BUG! cannot determine board type!\n");
 		return -EINVAL;
 	}
+	/*
+	 * Need to 'get' the PCI device to match the 'put' in pci224_detach().
+	 * TODO: Remove the pci_dev_get() and matching pci_dev_put() once
+	 * support for manual attachment of PCI devices via pci224_attach()
+	 * has been removed.
+	 */
+	pci_dev_get(pci_dev);
 	return pci224_attach_common(dev, pci_dev, NULL);
 }
 
@@ -1516,7 +1501,7 @@ static void pci224_detach(struct comedi_device *dev)
 	if (dev->subdevices) {
 		struct comedi_subdevice *s;
 
-		s = dev->subdevices + 0;
+		s = &dev->subdevices[0];
 		/* AO subdevice */
 		kfree(s->range_table_list);
 	}
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 1b67d0c61fa..bd8fb876ce2 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -193,6 +193,7 @@ for (or detection of) various hardware problems added by Ian Abbott.
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
+#include "comedi_fc.h"
 #include "8253.h"
 #include "8255.h"
 
@@ -958,23 +959,11 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	unsigned int tmp;
 
-	/* cmdtest tests a particular command to see if it is valid.
-	 * Using the cmdtest ioctl, a user can create a valid cmd
-	 * and then have it executes by the cmd ioctl.
-	 *
-	 * cmdtest returns 1,2,3,4 or 0, depending on which tests
-	 * the command passes. */
+	/* Step 1 : check if triggers are trivially valid */
 
-	/* Step 1: make sure trigger sources are trivially valid.
-	 * "invalid source" returned by comedilib to user mode process
-	 * if this fails. */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
 
-	tmp = cmd->scan_begin_src;
+	tmp = TRIG_TIMER | TRIG_INT;
 	if ((thisboard->min_hwver > 0) && (devpriv->hwver >= 2)) {
 		/*
 		 * For PCI230+ hardware version 2 onwards, allow external
@@ -990,46 +979,23 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 		 * scan_begin_src==TRIG_EXT support to be a bonus rather than a
 		 * guarantee!
 		 */
-		cmd->scan_begin_src &= TRIG_TIMER | TRIG_INT | TRIG_EXT;
-	} else {
-		cmd->scan_begin_src &= TRIG_TIMER | TRIG_INT;
+		tmp |= TRIG_EXT;
 	}
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, tmp);
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* Step 2: make sure trigger sources are unique and mutually compatible
-	 * "source conflict" returned by comedilib to user mode process
-	 * if this fails. */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* these tests are true if more than one _src bit is set */
-	if ((cmd->start_src & (cmd->start_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_begin_src & (cmd->scan_begin_src - 1)) != 0)
-		err++;
-	if ((cmd->convert_src & (cmd->convert_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_end_src & (cmd->scan_end_src - 1)) != 0)
-		err++;
-	if ((cmd->stop_src & (cmd->stop_src - 1)) != 0)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1610,75 +1576,45 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	unsigned int tmp;
 
-	/* cmdtest tests a particular command to see if it is valid.
-	 * Using the cmdtest ioctl, a user can create a valid cmd
-	 * and then have it executes by the cmd ioctl.
-	 *
-	 * cmdtest returns 1,2,3,4,5 or 0, depending on which tests
-	 * the command passes. */
+	/* Step 1 : check if triggers are trivially valid */
 
-	/* Step 1: make sure trigger sources are trivially valid.
-	 * "invalid source" returned by comedilib to user mode process
-	 * if this fails. */
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	/* Unfortunately, we cannot trigger a scan off an external source
-	 * on the PCI260 board, since it uses the PPIC0 (DIO) input, which
-	 * isn't present on the PCI260.  For PCI260+ we can use the
-	 * EXTTRIG/EXTCONVCLK input on pin 17 instead. */
+	tmp = TRIG_FOLLOW | TRIG_TIMER | TRIG_INT;
 	if ((thisboard->have_dio) || (thisboard->min_hwver > 0)) {
-		cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER | TRIG_INT
-		    | TRIG_EXT;
-	} else {
-		cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER | TRIG_INT;
+		/*
+		 * Unfortunately, we cannot trigger a scan off an external
+		 * source on the PCI260 board, since it uses the PPIC0 (DIO)
+		 * input, which isn't present on the PCI260.  For PCI260+
+		 * we can use the EXTTRIG/EXTCONVCLK input on pin 17 instead.
+		 */
+		tmp |= TRIG_EXT;
 	}
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_INT | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, tmp);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_INT | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* Step 2: make sure trigger sources are unique and mutually compatible
-	 * "source conflict" returned by comedilib to user mode process
-	 * if this fails. */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* these tests are true if more than one _src bit is set */
-	if ((cmd->start_src & (cmd->start_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_begin_src & (cmd->scan_begin_src - 1)) != 0)
-		err++;
-	if ((cmd->convert_src & (cmd->convert_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_end_src & (cmd->scan_end_src - 1)) != 0)
-		err++;
-	if ((cmd->stop_src & (cmd->stop_src - 1)) != 0)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
-	/* If scan_begin_src is not TRIG_FOLLOW, then a monostable will be
-	 * set up to generate a fixed number of timed conversion pulses. */
+	/*
+	 * If scan_begin_src is not TRIG_FOLLOW, then a monostable will be
+	 * set up to generate a fixed number of timed conversion pulses.
+	 */
 	if ((cmd->scan_begin_src != TRIG_FOLLOW)
 	    && (cmd->convert_src != TRIG_TIMER))
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -2838,7 +2774,7 @@ static int pci230_attach_common(struct comedi_device *dev,
 	if (rc)
 		return rc;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND;
@@ -2855,7 +2791,7 @@ static int pci230_attach_common(struct comedi_device *dev,
 		s->do_cmdtest = &pci230_ai_cmdtest;
 		s->cancel = pci230_ai_cancel;
 	}
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* analog output subdevice */
 	if (thisboard->ao_chans > 0) {
 		s->type = COMEDI_SUBD_AO;
@@ -2878,7 +2814,7 @@ static int pci230_attach_common(struct comedi_device *dev,
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* digital i/o subdevice */
 	if (thisboard->have_dio) {
 		rc = subdev_8255_init(dev, s, NULL,
@@ -2925,6 +2861,13 @@ static int __devinit pci230_attach_pci(struct comedi_device *dev,
 			"amplc_pci230: BUG! cannot determine board type!\n");
 		return -EINVAL;
 	}
+	/*
+	 * Need to 'get' the PCI device to match the 'put' in pci230_detach().
+	 * TODO: Remove the pci_dev_get() and matching pci_dev_put() once
+	 * support for manual attachment of PCI devices via pci230_attach()
+	 * has been removed.
+	 */
+	pci_dev_get(pci_dev);
 	return pci230_attach_common(dev, pci_dev);
 }
 
@@ -2934,7 +2877,7 @@ static void pci230_detach(struct comedi_device *dev)
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
 	if (dev->subdevices && thisboard->have_dio)
-		subdev_8255_cleanup(dev, dev->subdevices + 2);
+		subdev_8255_cleanup(dev, &dev->subdevices[2]);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (pcidev) {
diff --git a/drivers/staging/comedi/drivers/c6xdigio.c b/drivers/staging/comedi/drivers/c6xdigio.c
index 41ed8576f30..070037c22db 100644
--- a/drivers/staging/comedi/drivers/c6xdigio.c
+++ b/drivers/staging/comedi/drivers/c6xdigio.c
@@ -447,7 +447,7 @@ static int c6xdigio_attach(struct comedi_device *dev,
 	else if (irq == 0)
 		printk(KERN_DEBUG "comedi%d: no irq\n", dev->minor);
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* pwm output subdevice */
 	s->type = COMEDI_SUBD_AO;	/*  Not sure what to put here */
 	s->subdev_flags = SDF_WRITEABLE;
@@ -458,7 +458,7 @@ static int c6xdigio_attach(struct comedi_device *dev,
 	s->maxdata = 500;
 	s->range_table = &range_bipolar10;	/*  A suitable lie */
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* encoder (counter) subdevice */
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_LSAMPL;
@@ -468,7 +468,7 @@ static int c6xdigio_attach(struct comedi_device *dev,
 	s->maxdata = 0xffffff;
 	s->range_table = &range_unknown;
 
-	/*	s = dev->subdevices + 2; */
+	/*	s = &dev->subdevices[2]; */
 	/* pwm output subdevice */
 	/*	s->type = COMEDI_SUBD_COUNTER;  // Not sure what to put here */
 	/*	s->subdev_flags = SDF_WRITEABLE; */
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 58d45299bf8..6d81d8b40cc 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -46,6 +46,7 @@ Status: experimental
 #include <pcmcia/cistpl.h>
 #include <pcmcia/ds.h>
 
+#include "comedi_fc.h"
 #include "8253.h"
 
 #define DAS16CS_SIZE			18
@@ -169,47 +170,26 @@ static int das16cs_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and
-	 * mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -478,7 +458,7 @@ static int das16cs_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* analog input subdevice */
 	s->type		= COMEDI_SUBD_AI;
@@ -491,7 +471,7 @@ static int das16cs_attach(struct comedi_device *dev,
 	s->do_cmd	= das16cs_ai_cmd;
 	s->do_cmdtest	= das16cs_ai_cmdtest;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* analog output subdevice */
 	if (thisboard->n_ao_chans) {
 		s->type		= COMEDI_SUBD_AO;
@@ -505,7 +485,7 @@ static int das16cs_attach(struct comedi_device *dev,
 		s->type		= COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* digital i/o subdevice */
 	s->type		= COMEDI_SUBD_DIO;
 	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 2b6a637c349..de21a261ff4 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -45,11 +45,7 @@ Status:
   The boards may be autocalibrated using the comedi_calibrate
   utility.
 
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
+Configuration options: not applicable, uses PCI auto config
 
 For commands, the scanned channels must be consecutive
 (i.e. 4-5-6-7, 2-3-4,...), and must all have the same
@@ -807,58 +803,35 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 	int tmp;
 	int i, gain, start_chan;
 
-	/* step 1: trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_NOW | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
-	/*  make sure trigger sources are compatible with each other */
 	if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW)
-		err++;
+		err |= -EINVAL;
 	if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW)
-		err++;
+		err |= -EINVAL;
 	if (cmd->start_src == TRIG_EXT &&
 	    (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT))
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -1083,43 +1056,24 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1501,69 +1455,45 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 	return IRQ_HANDLED;
 }
 
-static struct pci_dev *cb_pcidas_find_pci_device(struct comedi_device *dev,
-						 struct comedi_devconfig *it)
+static const void *cb_pcidas_find_boardinfo(struct comedi_device *dev,
+					    struct pci_dev *pcidev)
 {
 	const struct cb_pcidas_board *thisboard;
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
 	int i;
 
-	for_each_pci_dev(pcidev) {
-		/*  is it not a computer boards card? */
-		if (pcidev->vendor != PCI_VENDOR_ID_CB)
-			continue;
-		/*  loop through cards supported by this driver */
-		for (i = 0; i < ARRAY_SIZE(cb_pcidas_boards); i++) {
-			thisboard = &cb_pcidas_boards[i];
-			if (thisboard->device_id != pcidev->device)
-				continue;
-			/*  was a particular bus/slot requested? */
-			if (bus || slot) {
-				/*  are we on the wrong bus/slot? */
-				if (pcidev->bus->number != bus ||
-				    PCI_SLOT(pcidev->devfn) != slot) {
-					continue;
-				}
-			}
-			dev_dbg(dev->class_dev,
-				"Found %s on bus %i, slot %i\n",
-				thisboard->name,
-				pcidev->bus->number, PCI_SLOT(pcidev->devfn));
-			dev->board_ptr = thisboard;
-			return pcidev;
-		}
+	for (i = 0; i < ARRAY_SIZE(cb_pcidas_boards); i++) {
+		thisboard = &cb_pcidas_boards[i];
+		if (thisboard->device_id == pcidev->device)
+			return thisboard;
 	}
-	dev_err(dev->class_dev, "No supported card found\n");
 	return NULL;
 }
 
-static int cb_pcidas_attach(struct comedi_device *dev,
-			    struct comedi_devconfig *it)
+static int cb_pcidas_attach_pci(struct comedi_device *dev,
+				struct pci_dev *pcidev)
 {
 	const struct cb_pcidas_board *thisboard;
 	struct cb_pcidas_private *devpriv;
-	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
 	int i;
 	int ret;
 
-	if (alloc_private(dev, sizeof(struct cb_pcidas_private)) < 0)
-		return -ENOMEM;
-	devpriv = dev->private;
-
-	pcidev = cb_pcidas_find_pci_device(dev, it);
-	if (!pcidev)
-		return -EIO;
 	comedi_set_hw_dev(dev, &pcidev->dev);
-	thisboard = comedi_board(dev);
 
-	if (comedi_pci_enable(pcidev, dev->driver->driver_name)) {
-		dev_err(dev->class_dev,
-			"Failed to enable PCI device and request regions\n");
-		return -EIO;
-	}
+	thisboard = cb_pcidas_find_boardinfo(dev, pcidev);
+	if (!thisboard)
+		return -ENODEV;
+	dev->board_ptr  = thisboard;
+	dev->board_name = thisboard->name;
+
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
+
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
 
 	devpriv->s5933_config = pci_resource_start(pcidev, 0);
 	devpriv->control_status = pci_resource_start(pcidev, 1);
@@ -1584,13 +1514,11 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 	}
 	dev->irq = pcidev->irq;
 
-	dev->board_name = thisboard->name;
-
 	ret = comedi_alloc_subdevices(dev, 7);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog input subdevice */
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
@@ -1607,7 +1535,7 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 	s->cancel = cb_pcidas_cancel;
 
 	/* analog output subdevice */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	if (thisboard->ao_nchan) {
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND;
@@ -1634,14 +1562,14 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 	}
 
 	/* 8255 */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	ret = subdev_8255_init(dev, s, NULL,
 			       devpriv->pacer_counter_dio + DIO_8255);
 	if (ret)
 		return ret;
 
 	/*  serial EEPROM, */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_MEMORY;
 	s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
 	s->n_chan = 256;
@@ -1649,7 +1577,7 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 	s->insn_read = eeprom_read_insn;
 
 	/*  8800 caldac */
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	s->type = COMEDI_SUBD_CALIB;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
 	s->n_chan = NUM_CHANNELS_8800;
@@ -1660,7 +1588,7 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 		caldac_8800_write(dev, i, s->maxdata / 2);
 
 	/*  trim potentiometer */
-	s = dev->subdevices + 5;
+	s = &dev->subdevices[5];
 	s->type = COMEDI_SUBD_CALIB;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
 	if (thisboard->trimpot == AD7376) {
@@ -1676,7 +1604,7 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 		cb_pcidas_trimpot_write(dev, i, s->maxdata / 2);
 
 	/*  dac08 caldac */
-	s = dev->subdevices + 6;
+	s = &dev->subdevices[6];
 	if (thisboard->has_dac08) {
 		s->type = COMEDI_SUBD_CALIB;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
@@ -1698,7 +1626,10 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 	outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS,
 	     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 
-	return 1;
+	dev_info(dev->class_dev, "%s: %s attached\n",
+		dev->driver->driver_name, dev->board_name);
+
+	return 0;
 }
 
 static void cb_pcidas_detach(struct comedi_device *dev)
@@ -1715,18 +1646,17 @@ static void cb_pcidas_detach(struct comedi_device *dev)
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 2);
+		subdev_8255_cleanup(dev, &dev->subdevices[2]);
 	if (pcidev) {
 		if (devpriv->s5933_config)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver cb_pcidas_driver = {
 	.driver_name	= "cb_pcidas",
 	.module		= THIS_MODULE,
-	.attach		= cb_pcidas_attach,
+	.attach_pci	= cb_pcidas_attach_pci,
 	.detach		= cb_pcidas_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 65cbaabf645..0472a9088ab 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1348,7 +1348,7 @@ static int setup_subdevices(struct comedi_device *dev)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog input subdevice */
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
@@ -1379,7 +1379,7 @@ static int setup_subdevices(struct comedi_device *dev)
 	}
 
 	/* analog output subdevice */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	if (board(dev)->ao_nchan) {
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags =
@@ -1401,7 +1401,7 @@ static int setup_subdevices(struct comedi_device *dev)
 	}
 
 	/*  digital input */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	if (board(dev)->layout == LAYOUT_64XX) {
 		s->type = COMEDI_SUBD_DI;
 		s->subdev_flags = SDF_READABLE;
@@ -1414,7 +1414,7 @@ static int setup_subdevices(struct comedi_device *dev)
 
 	/*  digital output */
 	if (board(dev)->layout == LAYOUT_64XX) {
-		s = dev->subdevices + 3;
+		s = &dev->subdevices[3];
 		s->type = COMEDI_SUBD_DO;
 		s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 		s->n_chan = 4;
@@ -1425,7 +1425,7 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->type = COMEDI_SUBD_UNUSED;
 
 	/* 8255 */
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	if (board(dev)->has_8255) {
 		if (board(dev)->layout == LAYOUT_4020) {
 			dio_8255_iobase =
@@ -1442,7 +1442,7 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->type = COMEDI_SUBD_UNUSED;
 
 	/*  8 channel dio for 60xx */
-	s = dev->subdevices + 5;
+	s = &dev->subdevices[5];
 	if (board(dev)->layout == LAYOUT_60XX) {
 		s->type = COMEDI_SUBD_DIO;
 		s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
@@ -1455,7 +1455,7 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->type = COMEDI_SUBD_UNUSED;
 
 	/*  caldac */
-	s = dev->subdevices + 6;
+	s = &dev->subdevices[6];
 	s->type = COMEDI_SUBD_CALIB;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
 	s->n_chan = 8;
@@ -1469,7 +1469,7 @@ static int setup_subdevices(struct comedi_device *dev)
 		caldac_write(dev, i, s->maxdata / 2);
 
 	/*  2 channel ad8402 potentiometer */
-	s = dev->subdevices + 7;
+	s = &dev->subdevices[7];
 	if (board(dev)->layout == LAYOUT_64XX) {
 		s->type = COMEDI_SUBD_CALIB;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
@@ -1483,7 +1483,7 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->type = COMEDI_SUBD_UNUSED;
 
 	/* serial EEPROM, if present */
-	s = dev->subdevices + 8;
+	s = &dev->subdevices[8];
 	if (readl(priv(dev)->plx9080_iobase + PLX_CONTROL_REG) & CTL_EECHK) {
 		s->type = COMEDI_SUBD_MEMORY;
 		s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
@@ -1494,7 +1494,7 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->type = COMEDI_SUBD_UNUSED;
 
 	/*  user counter subd XXX */
-	s = dev->subdevices + 9;
+	s = &dev->subdevices[9];
 	s->type = COMEDI_SUBD_UNUSED;
 
 	return 0;
@@ -1847,7 +1847,7 @@ static void detach(struct comedi_device *dev)
 		}
 	}
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 4);
+		subdev_8255_cleanup(dev, &dev->subdevices[4]);
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
@@ -2108,74 +2108,50 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		      struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
 	unsigned int tmp_arg, tmp_arg2;
 	int i;
 	int aref;
 	unsigned int triggers;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
 
-	tmp = cmd->scan_begin_src;
 	triggers = TRIG_TIMER;
 	if (board(dev)->layout == LAYOUT_4020)
 		triggers |= TRIG_OTHER;
 	else
 		triggers |= TRIG_FOLLOW;
-	cmd->scan_begin_src &= triggers;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, triggers);
 
-	tmp = cmd->convert_src;
 	triggers = TRIG_TIMER;
 	if (board(dev)->layout == LAYOUT_4020)
 		triggers |= TRIG_NOW;
 	else
 		triggers |= TRIG_EXT;
-	cmd->convert_src &= triggers;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->convert_src, triggers);
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_EXT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/*  uniqueness check */
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_OTHER &&
-	    cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT &&
-	    cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
-	/*  compatibility check */
 	if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER)
-		err++;
+		err |= -EINVAL;
 	if (cmd->stop_src != TRIG_COUNT &&
 	    cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -3466,55 +3442,33 @@ static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		      struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
 	unsigned int tmp_arg;
 	int i;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_INT | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/*  uniqueness check */
-	if (cmd->start_src != TRIG_INT && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+
+	/* Step 2b : and mutually compatible */
 
-	/*  compatibility check */
 	if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER)
-		err++;
+		err |= -EINVAL;
 	if (cmd->stop_src != TRIG_COUNT &&
 	    cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index 12660a384e5..aef946df27e 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -48,6 +48,7 @@ Please report success/failure with other different cards to
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "8255.h"
 
 /* PCI vendor number of ComputerBoards */
@@ -56,14 +57,6 @@ Please report success/failure with other different cards to
 /* maximum number of ao channels for supported boards */
 #define MAX_AO_CHANNELS 8
 
-/* PCI-DDA base addresses */
-#define DIGITALIO_BADRINDEX	2
-	/*  DIGITAL I/O is pci_dev->resource[2] */
-#define DIGITALIO_SIZE 8
-	/*  DIGITAL I/O uses 8 I/O port addresses */
-#define DAC_BADRINDEX	3
-	/*  DAC is pci_dev->resource[3] */
-
 /* Digital I/O registers */
 #define PORT1A 0		/*  PORT 1A DATA */
 
@@ -203,11 +196,6 @@ static const struct cb_pcidda_board cb_pcidda_boards[] = {
 };
 
 /*
- * Useful for shorthand access to the particular board structure
- */
-#define thisboard ((const struct cb_pcidda_board *)dev->board_ptr)
-
-/*
  * this structure is for data unique to this hardware driver.  If
  * several hardware drivers keep similar information in this structure,
  * feel free to suggest moving the variable to the struct comedi_device
@@ -230,164 +218,6 @@ struct cb_pcidda_private {
 };
 
 /*
- * most drivers define the following macro to make it easy to
- * access the private structure.
- */
-#define devpriv ((struct cb_pcidda_private *)dev->private)
-
-/* static int cb_pcidda_ai_rinsn(struct comedi_device *dev,struct comedi_subdevice *s,struct comedi_insn *insn,unsigned int *data); */
-static int cb_pcidda_ao_winsn(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data);
-
-/* static int cb_pcidda_ai_cmd(struct comedi_device *dev, struct *comedi_subdevice *s);*/
-/* static int cb_pcidda_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd); */
-/* static int cb_pcidda_ns_to_timer(unsigned int *ns,int *round); */
-
-static unsigned int cb_pcidda_serial_in(struct comedi_device *dev);
-static void cb_pcidda_serial_out(struct comedi_device *dev, unsigned int value,
-				 unsigned int num_bits);
-static unsigned int cb_pcidda_read_eeprom(struct comedi_device *dev,
-					  unsigned int address);
-static void cb_pcidda_calibrate(struct comedi_device *dev, unsigned int channel,
-				unsigned int range);
-
-static struct pci_dev *cb_pcidda_find_pci_dev(struct comedi_device *dev,
-					      struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int i;
-
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-			    slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_CB)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(cb_pcidda_boards); i++) {
-			if (cb_pcidda_boards[i].device_id != pcidev->device)
-				continue;
-			dev->board_ptr = cb_pcidda_boards + i;
-			return pcidev;
-		}
-	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
-	return NULL;
-}
-
-/*
- * Attach is called by the Comedi core to configure the driver
- * for a particular board.
- */
-static int cb_pcidda_attach(struct comedi_device *dev,
-			    struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	struct comedi_subdevice *s;
-	int index;
-	int ret;
-
-/*
- * Allocate the private structure area.
- */
-	if (alloc_private(dev, sizeof(struct cb_pcidda_private)) < 0)
-		return -ENOMEM;
-
-	pcidev = cb_pcidda_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	/*
-	 * Enable PCI device and request regions.
-	 */
-	if (comedi_pci_enable(pcidev, thisboard->name)) {
-		dev_err(dev->class_dev,
-			"cb_pcidda: failed to enable PCI device and request regions\n");
-		return -EIO;
-	}
-
-/*
- * Allocate the I/O ports.
- */
-	devpriv->digitalio = pci_resource_start(pcidev, DIGITALIO_BADRINDEX);
-	devpriv->dac = pci_resource_start(pcidev, DAC_BADRINDEX);
-	dev->iobase = devpriv->dac;
-
-/*
- * Warn about the status of the driver.
- */
-	if (thisboard->status == 2)
-		printk
-		    ("WARNING: DRIVER FOR THIS BOARD NOT CHECKED WITH MANUAL. "
-		     "WORKS ASSUMING FULL COMPATIBILITY WITH PCI-DDA08/12. "
-		     "PLEASE REPORT USAGE TO <ivanmr@altavista.com>.\n");
-
-/*
- * Initialize dev->board_name.
- */
-	dev->board_name = thisboard->name;
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	s = dev->subdevices + 0;
-	/* analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = thisboard->ao_chans;
-	s->maxdata = (1 << thisboard->ao_bits) - 1;
-	s->range_table = thisboard->ranges;
-	s->insn_write = cb_pcidda_ao_winsn;
-
-	/* s->subdev_flags |= SDF_CMD_READ; */
-	/* s->do_cmd = cb_pcidda_ai_cmd; */
-	/* s->do_cmdtest = cb_pcidda_ai_cmdtest; */
-
-	/*  two 8255 digital io subdevices */
-	s = dev->subdevices + 1;
-	subdev_8255_init(dev, s, NULL, devpriv->digitalio);
-	s = dev->subdevices + 2;
-	subdev_8255_init(dev, s, NULL, devpriv->digitalio + PORT2A);
-
-	dev_dbg(dev->class_dev, "eeprom:\n");
-	for (index = 0; index < EEPROM_SIZE; index++) {
-		devpriv->eeprom_data[index] = cb_pcidda_read_eeprom(dev, index);
-		dev_dbg(dev->class_dev, "%i:0x%x\n", index,
-			devpriv->eeprom_data[index]);
-	}
-
-	/*  set calibrations dacs */
-	for (index = 0; index < thisboard->ao_chans; index++)
-		cb_pcidda_calibrate(dev, index, devpriv->ao_range[index]);
-
-	return 1;
-}
-
-static void cb_pcidda_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	}
-	if (dev->subdevices) {
-		subdev_8255_cleanup(dev, dev->subdevices + 1);
-		subdev_8255_cleanup(dev, dev->subdevices + 2);
-	}
-}
-
-/*
  * I will program this later... ;-)
  */
 #if 0
@@ -418,56 +248,26 @@ static int cb_pcidda_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* cmdtest tests a particular command to see if it is valid.
-	 * Using the cmdtest ioctl, a user can create a valid cmd
-	 * and then have it executes by the cmd ioctl.
-	 *
-	 * cmdtest returns 1,2,3,4 or 0, depending on which tests
-	 * the command passes. */
-
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually
-	 * compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER
-	    && cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_TIMER && cmd->stop_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -581,59 +381,10 @@ static int cb_pcidda_ns_to_timer(unsigned int *ns, int round)
 }
 #endif
 
-static int cb_pcidda_ao_winsn(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int command;
-	unsigned int channel, range;
-
-	channel = CR_CHAN(insn->chanspec);
-	range = CR_RANGE(insn->chanspec);
-
-	/*  adjust calibration dacs if range has changed */
-	if (range != devpriv->ao_range[channel])
-		cb_pcidda_calibrate(dev, channel, range);
-
-	/* output channel configuration */
-	command = NOSU | ENABLEDAC;
-
-	/* output channel range */
-	switch (range) {
-	case 0:
-		command |= BIP | RANGE10V;
-		break;
-	case 1:
-		command |= BIP | RANGE5V;
-		break;
-	case 2:
-		command |= BIP | RANGE2V5;
-		break;
-	case 3:
-		command |= UNIP | RANGE10V;
-		break;
-	case 4:
-		command |= UNIP | RANGE5V;
-		break;
-	case 5:
-		command |= UNIP | RANGE2V5;
-		break;
-	}
-
-	/* output channel specification */
-	command |= channel << 2;
-	outw(command, devpriv->dac + DACONTROL);
-
-	/* write data */
-	outw(data[0], devpriv->dac + DADATA + channel * 2);
-
-	/* return the number of samples read/written */
-	return 1;
-}
-
 /* lowlevel read from eeprom */
 static unsigned int cb_pcidda_serial_in(struct comedi_device *dev)
 {
+	struct cb_pcidda_private *devpriv = dev->private;
 	unsigned int value = 0;
 	int i;
 	const int value_width = 16;	/*  number of bits wide values are */
@@ -651,6 +402,7 @@ static unsigned int cb_pcidda_serial_in(struct comedi_device *dev)
 static void cb_pcidda_serial_out(struct comedi_device *dev, unsigned int value,
 				 unsigned int num_bits)
 {
+	struct cb_pcidda_private *devpriv = dev->private;
 	int i;
 
 	for (i = 1; i <= num_bits; i++) {
@@ -667,6 +419,7 @@ static void cb_pcidda_serial_out(struct comedi_device *dev, unsigned int value,
 static unsigned int cb_pcidda_read_eeprom(struct comedi_device *dev,
 					  unsigned int address)
 {
+	struct cb_pcidda_private *devpriv = dev->private;
 	unsigned int i;
 	unsigned int cal2_bits;
 	unsigned int value;
@@ -703,6 +456,7 @@ static void cb_pcidda_write_caldac(struct comedi_device *dev,
 				   unsigned int caldac, unsigned int channel,
 				   unsigned int value)
 {
+	struct cb_pcidda_private *devpriv = dev->private;
 	unsigned int cal2_bits;
 	unsigned int i;
 	/* caldacs use 3 bit channel specification */
@@ -797,6 +551,7 @@ static unsigned int eeprom_fine_byte(unsigned int word)
 static void cb_pcidda_calibrate(struct comedi_device *dev, unsigned int channel,
 				unsigned int range)
 {
+	struct cb_pcidda_private *devpriv = dev->private;
 	unsigned int coarse_offset, fine_offset, coarse_gain, fine_gain;
 
 	/* remember range so we can tell when we need to readjust calibration */
@@ -827,10 +582,164 @@ static void cb_pcidda_calibrate(struct comedi_device *dev, unsigned int channel,
 			       fine_gain_channel(channel), fine_gain);
 }
 
+static int cb_pcidda_ao_winsn(struct comedi_device *dev,
+			      struct comedi_subdevice *s,
+			      struct comedi_insn *insn, unsigned int *data)
+{
+	struct cb_pcidda_private *devpriv = dev->private;
+	unsigned int command;
+	unsigned int channel, range;
+
+	channel = CR_CHAN(insn->chanspec);
+	range = CR_RANGE(insn->chanspec);
+
+	/*  adjust calibration dacs if range has changed */
+	if (range != devpriv->ao_range[channel])
+		cb_pcidda_calibrate(dev, channel, range);
+
+	/* output channel configuration */
+	command = NOSU | ENABLEDAC;
+
+	/* output channel range */
+	switch (range) {
+	case 0:
+		command |= BIP | RANGE10V;
+		break;
+	case 1:
+		command |= BIP | RANGE5V;
+		break;
+	case 2:
+		command |= BIP | RANGE2V5;
+		break;
+	case 3:
+		command |= UNIP | RANGE10V;
+		break;
+	case 4:
+		command |= UNIP | RANGE5V;
+		break;
+	case 5:
+		command |= UNIP | RANGE2V5;
+		break;
+	}
+
+	/* output channel specification */
+	command |= channel << 2;
+	outw(command, devpriv->dac + DACONTROL);
+
+	/* write data */
+	outw(data[0], devpriv->dac + DADATA + channel * 2);
+
+	/* return the number of samples read/written */
+	return 1;
+}
+
+static const void *cb_pcidda_find_boardinfo(struct comedi_device *dev,
+					    struct pci_dev *pcidev)
+{
+	const struct cb_pcidda_board *thisboard;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(cb_pcidda_boards); i++) {
+		thisboard = &cb_pcidda_boards[i];
+		if (thisboard->device_id != pcidev->device)
+			return thisboard;
+	}
+	return NULL;
+}
+
+static int cb_pcidda_attach_pci(struct comedi_device *dev,
+				struct pci_dev *pcidev)
+{
+	const struct cb_pcidda_board *thisboard;
+	struct cb_pcidda_private *devpriv;
+	struct comedi_subdevice *s;
+	int index;
+	int ret;
+
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	thisboard = cb_pcidda_find_boardinfo(dev, pcidev);
+	if (!pcidev)
+		return -ENODEV;
+	dev->board_ptr = thisboard;
+	dev->board_name = thisboard->name;
+
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
+
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+
+	devpriv->digitalio = pci_resource_start(pcidev, 2);
+	devpriv->dac = pci_resource_start(pcidev, 3);
+	dev->iobase = devpriv->dac;
+
+	if (thisboard->status == 2)
+		printk
+		    ("WARNING: DRIVER FOR THIS BOARD NOT CHECKED WITH MANUAL. "
+		     "WORKS ASSUMING FULL COMPATIBILITY WITH PCI-DDA08/12. "
+		     "PLEASE REPORT USAGE TO <ivanmr@altavista.com>.\n");
+
+	ret = comedi_alloc_subdevices(dev, 3);
+	if (ret)
+		return ret;
+
+	s = &dev->subdevices[0];
+	/* analog output subdevice */
+	s->type = COMEDI_SUBD_AO;
+	s->subdev_flags = SDF_WRITABLE;
+	s->n_chan = thisboard->ao_chans;
+	s->maxdata = (1 << thisboard->ao_bits) - 1;
+	s->range_table = thisboard->ranges;
+	s->insn_write = cb_pcidda_ao_winsn;
+
+	/* s->subdev_flags |= SDF_CMD_READ; */
+	/* s->do_cmd = cb_pcidda_ai_cmd; */
+	/* s->do_cmdtest = cb_pcidda_ai_cmdtest; */
+
+	/*  two 8255 digital io subdevices */
+	s = &dev->subdevices[1];
+	subdev_8255_init(dev, s, NULL, devpriv->digitalio);
+	s = &dev->subdevices[2];
+	subdev_8255_init(dev, s, NULL, devpriv->digitalio + PORT2A);
+
+	dev_dbg(dev->class_dev, "eeprom:\n");
+	for (index = 0; index < EEPROM_SIZE; index++) {
+		devpriv->eeprom_data[index] = cb_pcidda_read_eeprom(dev, index);
+		dev_dbg(dev->class_dev, "%i:0x%x\n", index,
+			devpriv->eeprom_data[index]);
+	}
+
+	/*  set calibrations dacs */
+	for (index = 0; index < thisboard->ao_chans; index++)
+		cb_pcidda_calibrate(dev, index, devpriv->ao_range[index]);
+
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
+
+	return 0;
+}
+
+static void cb_pcidda_detach(struct comedi_device *dev)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
+	if (dev->subdevices) {
+		subdev_8255_cleanup(dev, &dev->subdevices[1]);
+		subdev_8255_cleanup(dev, &dev->subdevices[2]);
+	}
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
+	}
+}
+
 static struct comedi_driver cb_pcidda_driver = {
 	.driver_name	= "cb_pcidda",
 	.module		= THIS_MODULE,
-	.attach		= cb_pcidda_attach,
+	.attach_pci	= cb_pcidda_attach_pci,
 	.detach		= cb_pcidda_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidio.c b/drivers/staging/comedi/drivers/cb_pcidio.c
deleted file mode 100644
index e370d0d81bb..00000000000
--- a/drivers/staging/comedi/drivers/cb_pcidio.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
-    comedi/drivers/cb_pcidio.c
-    A Comedi driver for PCI-DIO24H & PCI-DIO48H of ComputerBoards (currently MeasurementComputing)
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-/*
-Driver: cb_pcidio
-Description: ComputerBoards' DIO boards with PCI interface
-Devices: [Measurement Computing] PCI-DIO24 (cb_pcidio), PCI-DIO24H, PCI-DIO48H
-Author: Yoshiya Matsuzaka
-Updated: Mon, 29 Oct 2007 15:40:47 +0000
-Status: experimental
-
-This driver has been modified from skel.c of comedi-0.7.70.
-
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first available PCI device will
-  be used.
-
-Passing a zero for an option is the same as leaving it unspecified.
-*/
-
-/*------------------------------ HEADER FILES ---------------------------------*/
-#include "../comedidev.h"
-#include "8255.h"
-
-/*-------------------------- MACROS and DATATYPES -----------------------------*/
-#define PCI_VENDOR_ID_CB	0x1307
-
-/*
- * Board descriptions for two imaginary boards.  Describing the
- * boards in this way is optional, and completely driver-dependent.
- * Some drivers use arrays such as this, other do not.
- */
-struct pcidio_board {
-	const char *name;	/*  name of the board */
-	int dev_id;
-	int n_8255;		/*  number of 8255 chips on board */
-
-	/*  indices of base address regions */
-	int pcicontroler_badrindex;
-	int dioregs_badrindex;
-};
-
-static const struct pcidio_board pcidio_boards[] = {
-	{
-	 .name = "pci-dio24",
-	 .dev_id = 0x0028,
-	 .n_8255 = 1,
-	 .pcicontroler_badrindex = 1,
-	 .dioregs_badrindex = 2,
-	 },
-	{
-	 .name = "pci-dio24h",
-	 .dev_id = 0x0014,
-	 .n_8255 = 1,
-	 .pcicontroler_badrindex = 1,
-	 .dioregs_badrindex = 2,
-	 },
-	{
-	 .name = "pci-dio48h",
-	 .dev_id = 0x000b,
-	 .n_8255 = 2,
-	 .pcicontroler_badrindex = 0,
-	 .dioregs_badrindex = 1,
-	 },
-};
-
-/*
- * Useful for shorthand access to the particular board structure
- */
-#define thisboard ((const struct pcidio_board *)dev->board_ptr)
-
-static struct pci_dev *pcidio_find_pci_dev(struct comedi_device *dev,
-					   struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int i;
-
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-				slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_CB)
-			continue;
-		for (i = 0; i < ARRAY_SIZE(pcidio_boards); i++) {
-			if (pcidio_boards[i].dev_id != pcidev->device)
-				continue;
-
-			dev->board_ptr = pcidio_boards + i;
-			return pcidev;
-		}
-	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
-	return NULL;
-}
-
-static int pcidio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	int i;
-	int ret;
-
-	pcidev = pcidio_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-/*
- * Initialize dev->board_name.  Note that we can use the "thisboard"
- * macro now, since we just initialized it in the last line.
- */
-	dev->board_name = thisboard->name;
-
-	if (comedi_pci_enable(pcidev, thisboard->name))
-		return -EIO;
-
-	dev->iobase = pci_resource_start(pcidev, thisboard->dioregs_badrindex);
-
-	ret = comedi_alloc_subdevices(dev, thisboard->n_8255);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < thisboard->n_8255; i++) {
-		subdev_8255_init(dev, dev->subdevices + i,
-				 NULL, dev->iobase + i * 4);
-		dev_dbg(dev->class_dev, "subdev %d: base = 0x%lx\n", i,
-			dev->iobase + i * 4);
-	}
-
-	return 1;
-}
-
-static void pcidio_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	}
-	if (dev->subdevices) {
-		int i;
-		for (i = 0; i < thisboard->n_8255; i++)
-			subdev_8255_cleanup(dev, dev->subdevices + i);
-	}
-}
-
-static struct comedi_driver cb_pcidio_driver = {
-	.driver_name	= "cb_pcidio",
-	.module		= THIS_MODULE,
-	.attach		= pcidio_attach,
-	.detach		= pcidio_detach,
-};
-
-static int __devinit cb_pcidio_pci_probe(struct pci_dev *dev,
-						const struct pci_device_id *ent)
-{
-	return comedi_pci_auto_config(dev, &cb_pcidio_driver);
-}
-
-static void __devexit cb_pcidio_pci_remove(struct pci_dev *dev)
-{
-	comedi_pci_auto_unconfig(dev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(cb_pcidio_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0028) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0014) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x000b) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, cb_pcidio_pci_table);
-
-static struct pci_driver cb_pcidio_pci_driver = {
-	.name		= "cb_pcidio",
-	.id_table	= cb_pcidio_pci_table,
-	.probe		= cb_pcidio_pci_probe,
-	.remove		= __devexit_p(cb_pcidio_pci_remove),
-};
-module_comedi_pci_driver(cb_pcidio_driver, cb_pcidio_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index c632a89f3ae..9515b692666 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -119,11 +119,6 @@ static const struct cb_pcimdas_board cb_pcimdas_boards[] = {
 };
 
 /*
- * Useful for shorthand access to the particular board structure
- */
-#define thisboard ((const struct cb_pcimdas_board *)dev->board_ptr)
-
-/*
  * this structure is for data unique to this hardware driver.  If
  * several hardware drivers keep similar information in this structure,
  * feel free to suggest moving the variable to the struct comedi_device
@@ -138,160 +133,6 @@ struct cb_pcimdas_private {
 };
 
 /*
- * most drivers define the following macro to make it easy to
- * access the private structure.
- */
-#define devpriv ((struct cb_pcimdas_private *)dev->private)
-
-static int cb_pcimdas_ai_rinsn(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data);
-static int cb_pcimdas_ao_winsn(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data);
-static int cb_pcimdas_ao_rinsn(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data);
-
-static struct pci_dev *cb_pcimdas_find_pci_dev(struct comedi_device *dev,
-					       struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int i;
-
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-				slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_COMPUTERBOARDS)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(cb_pcimdas_boards); i++) {
-			if (cb_pcimdas_boards[i].device_id != pcidev->device)
-				continue;
-
-			dev->board_ptr = cb_pcimdas_boards + i;
-			return pcidev;
-		}
-	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
-	return NULL;
-}
-
-/*
- * Attach is called by the Comedi core to configure the driver
- * for a particular board.  If you specified a board_name array
- * in the driver structure, dev->board_ptr contains that
- * address.
- */
-static int cb_pcimdas_attach(struct comedi_device *dev,
-			     struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	struct comedi_subdevice *s;
-	unsigned long iobase_8255;
-	int ret;
-
-/*
- * Allocate the private structure area.
- */
-	if (alloc_private(dev, sizeof(struct cb_pcimdas_private)) < 0)
-		return -ENOMEM;
-
-	pcidev = cb_pcimdas_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	/*  Warn about non-tested features */
-	switch (thisboard->device_id) {
-	case 0x56:
-		break;
-	default:
-		dev_dbg(dev->class_dev, "THIS CARD IS UNSUPPORTED.\n");
-		dev_dbg(dev->class_dev,
-			"PLEASE REPORT USAGE TO <mocelet@sucs.org>\n");
-	}
-
-	if (comedi_pci_enable(pcidev, "cb_pcimdas")) {
-		dev_err(dev->class_dev,
-			"Failed to enable PCI device and request regions\n");
-		return -EIO;
-	}
-
-	dev->iobase = pci_resource_start(pcidev, 2);
-	devpriv->BADR3 = pci_resource_start(pcidev, 3);
-	iobase_8255 = pci_resource_start(pcidev, 4);
-
-/* Dont support IRQ yet */
-/*  get irq */
-/* if(request_irq(pcidev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
-/* { */
-/* printk(" unable to allocate irq %u\n", pcidev->irq); */
-/* return -EINVAL; */
-/* } */
-/* dev->irq = pcidev->irq; */
-
-	/* Initialize dev->board_name */
-	dev->board_name = thisboard->name;
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	s = dev->subdevices + 0;
-	/* dev->read_subdev=s; */
-	/*  analog input subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = thisboard->ai_se_chans;
-	s->maxdata = (1 << thisboard->ai_bits) - 1;
-	s->range_table = &range_unknown;
-	s->len_chanlist = 1;	/*  This is the maximum chanlist length that */
-	/*  the board can handle */
-	s->insn_read = cb_pcimdas_ai_rinsn;
-
-	s = dev->subdevices + 1;
-	/*  analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = thisboard->ao_nchan;
-	s->maxdata = 1 << thisboard->ao_bits;
-	/* ranges are hardware settable, but not software readable. */
-	s->range_table = &range_unknown;
-	s->insn_write = &cb_pcimdas_ao_winsn;
-	s->insn_read = &cb_pcimdas_ao_rinsn;
-
-	s = dev->subdevices + 2;
-	/* digital i/o subdevice */
-	if (thisboard->has_dio)
-		subdev_8255_init(dev, s, NULL, iobase_8255);
-	else
-		s->type = COMEDI_SUBD_UNUSED;
-
-	return 1;
-}
-
-static void cb_pcimdas_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	if (pcidev) {
-		if (dev->iobase)
-			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
-	}
-}
-
-/*
  * "instructions" read/write data in "one-shot" or "software-triggered"
  * mode.
  */
@@ -299,6 +140,8 @@ static int cb_pcimdas_ai_rinsn(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	const struct cb_pcimdas_board *thisboard = comedi_board(dev);
+	struct cb_pcimdas_private *devpriv = dev->private;
 	int n, i;
 	unsigned int d;
 	unsigned int busy;
@@ -368,6 +211,7 @@ static int cb_pcimdas_ao_winsn(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	struct cb_pcimdas_private *devpriv = dev->private;
 	int i;
 	int chan = CR_CHAN(insn->chanspec);
 
@@ -397,6 +241,7 @@ static int cb_pcimdas_ao_rinsn(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	struct cb_pcimdas_private *devpriv = dev->private;
 	int i;
 	int chan = CR_CHAN(insn->chanspec);
 
@@ -406,10 +251,124 @@ static int cb_pcimdas_ao_rinsn(struct comedi_device *dev,
 	return i;
 }
 
+static const void *cb_pcimdas_find_boardinfo(struct comedi_device *dev,
+					     struct pci_dev *pcidev)
+{
+	const struct cb_pcimdas_board *thisboard;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(cb_pcimdas_boards); i++) {
+		thisboard = &cb_pcimdas_boards[i];
+		if (thisboard->device_id == pcidev->device)
+			return thisboard;
+	}
+	return NULL;
+}
+
+static int cb_pcimdas_attach_pci(struct comedi_device *dev,
+				 struct pci_dev *pcidev)
+{
+	const struct cb_pcimdas_board *thisboard;
+	struct cb_pcimdas_private *devpriv;
+	struct comedi_subdevice *s;
+	unsigned long iobase_8255;
+	int ret;
+
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	thisboard = cb_pcimdas_find_boardinfo(dev, pcidev);
+	if (!thisboard)
+		return -ENODEV;
+	dev->board_ptr = thisboard;
+	dev->board_name = thisboard->name;
+
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
+
+	/*  Warn about non-tested features */
+	switch (thisboard->device_id) {
+	case 0x56:
+		break;
+	default:
+		dev_dbg(dev->class_dev, "THIS CARD IS UNSUPPORTED.\n");
+		dev_dbg(dev->class_dev,
+			"PLEASE REPORT USAGE TO <mocelet@sucs.org>\n");
+	}
+
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+
+	dev->iobase = pci_resource_start(pcidev, 2);
+	devpriv->BADR3 = pci_resource_start(pcidev, 3);
+	iobase_8255 = pci_resource_start(pcidev, 4);
+
+/* Dont support IRQ yet */
+/*  get irq */
+/* if(request_irq(pcidev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
+/* { */
+/* printk(" unable to allocate irq %u\n", pcidev->irq); */
+/* return -EINVAL; */
+/* } */
+/* dev->irq = pcidev->irq; */
+
+	ret = comedi_alloc_subdevices(dev, 3);
+	if (ret)
+		return ret;
+
+	s = &dev->subdevices[0];
+	/* dev->read_subdev=s; */
+	/*  analog input subdevice */
+	s->type = COMEDI_SUBD_AI;
+	s->subdev_flags = SDF_READABLE | SDF_GROUND;
+	s->n_chan = thisboard->ai_se_chans;
+	s->maxdata = (1 << thisboard->ai_bits) - 1;
+	s->range_table = &range_unknown;
+	s->len_chanlist = 1;	/*  This is the maximum chanlist length that */
+	/*  the board can handle */
+	s->insn_read = cb_pcimdas_ai_rinsn;
+
+	s = &dev->subdevices[1];
+	/*  analog output subdevice */
+	s->type = COMEDI_SUBD_AO;
+	s->subdev_flags = SDF_WRITABLE;
+	s->n_chan = thisboard->ao_nchan;
+	s->maxdata = 1 << thisboard->ao_bits;
+	/* ranges are hardware settable, but not software readable. */
+	s->range_table = &range_unknown;
+	s->insn_write = &cb_pcimdas_ao_winsn;
+	s->insn_read = &cb_pcimdas_ao_rinsn;
+
+	s = &dev->subdevices[2];
+	/* digital i/o subdevice */
+	if (thisboard->has_dio)
+		subdev_8255_init(dev, s, NULL, iobase_8255);
+	else
+		s->type = COMEDI_SUBD_UNUSED;
+
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
+
+	return 0;
+}
+
+static void cb_pcimdas_detach(struct comedi_device *dev)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
+	if (dev->irq)
+		free_irq(dev->irq, dev);
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
+	}
+}
+
 static struct comedi_driver cb_pcimdas_driver = {
 	.driver_name	= "cb_pcimdas",
 	.module		= THIS_MODULE,
-	.attach		= cb_pcimdas_attach,
+	.attach_pci	= cb_pcimdas_attach_pci,
 	.detach		= cb_pcimdas_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c
index a80146133c0..ba9f0599be2 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdda.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdda.c
@@ -57,12 +57,7 @@ output modes on the board:
     then issue one comedi_data_read() on any channel on the AO subdevice
     to initiate the simultaneous XFER.
 
-Configuration Options:
-  [0] PCI bus (optional)
-  [1] PCI slot (optional)
-  [2] analog output range jumper setting
-      0 == +/- 5 V
-      1 == +/- 10 V
+Configuration Options: not applicable, uses PCI auto config
 */
 
 /*
@@ -93,337 +88,133 @@ Configuration Options:
 #define PCI_ID_PCIM_DDA06_16		0x0053
 
 /*
- * This is straight from skel.c -- I did this in case this source file
- * will someday support more than 1 board...
+ * Register map, 8-bit access only
  */
-struct board_struct {
-	const char *name;
-	unsigned short device_id;
-	int ao_chans;
-	int ao_bits;
-	int dio_chans;
-	int dio_method;
-	/* how many bytes into the BADR are the DIO ports */
-	int dio_offset;
-	int regs_badrindex;	/* IO Region for the control, analog output,
-				   and DIO registers */
-	int reg_sz;		/* number of bytes of registers in io region */
-};
+#define PCIMDDA_DA_CHAN(x)		(0x00 + (x) * 2)
+#define PCIMDDA_8255_BASE_REG		0x0c
 
-enum DIO_METHODS {
-	DIO_NONE = 0,
-	DIO_8255,
-	DIO_INTERNAL		/* unimplemented */
-};
+#define MAX_AO_READBACK_CHANNELS	6
 
-static const struct board_struct boards[] = {
-	{
-	 .name = "cb_pcimdda06-16",
-	 .device_id = PCI_ID_PCIM_DDA06_16,
-	 .ao_chans = 6,
-	 .ao_bits = 16,
-	 .dio_chans = 24,
-	 .dio_method = DIO_8255,
-	 .dio_offset = 12,
-	 .regs_badrindex = 3,
-	 .reg_sz = 16,
-	 }
+struct cb_pcimdda_private {
+	unsigned int ao_readback[MAX_AO_READBACK_CHANNELS];
 };
 
-/*
- * Useful for shorthand access to the particular board structure
- */
-#define thisboard    ((const struct board_struct *)dev->board_ptr)
-
-#define REG_SZ (thisboard->reg_sz)
-#define REGS_BADRINDEX (thisboard->regs_badrindex)
-
-/*
- * this structure is for data unique to this hardware driver.  If
- * several hardware drivers keep similar information in this structure,
- * feel free to suggest moving the variable to the struct comedi_device
- * struct.
- */
-struct board_private_struct {
-	unsigned long registers;	/* set by probe */
-	unsigned long dio_registers;
-	char attached_to_8255;	/* boolean */
-	/* would be useful for a PCI device */
-	struct pci_dev *pci_dev;
-
-#define MAX_AO_READBACK_CHANNELS 6
-	/* Used for AO readback */
-	unsigned int ao_readback[MAX_AO_READBACK_CHANNELS];
+static int cb_pcimdda_ao_winsn(struct comedi_device *dev,
+			       struct comedi_subdevice *s,
+			       struct comedi_insn *insn,
+			       unsigned int *data)
+{
+	struct cb_pcimdda_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned long offset = dev->iobase + PCIMDDA_DA_CHAN(chan);
+	unsigned int val = 0;
+	int i;
 
-};
+	for (i = 0; i < insn->n; i++) {
+		val = data[i];
 
-/*
- * most drivers define the following macro to make it easy to
- * access the private structure.
- */
-#define devpriv ((struct board_private_struct *)dev->private)
+		/*
+		 * Write the LSB then MSB.
+		 *
+		 * If the simultaneous xfer mode is selected by the
+		 * jumper on the card, a read instruction is needed
+		 * in order to initiate the simultaneous transfer.
+		 * Otherwise, the DAC will be updated when the MSB
+		 * is written.
+		 */
+		outb(val & 0x00ff, offset);
+		outb((val >> 8) & 0x00ff, offset + 1);
+	}
 
-static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data);
-static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data);
+	/* Cache the last value for readback */
+	devpriv->ao_readback[chan] = val;
 
-/*---------------------------------------------------------------------------
-  HELPER FUNCTION DECLARATIONS
------------------------------------------------------------------------------*/
+	return insn->n;
+}
 
-/* returns a maxdata value for a given n_bits */
-static inline unsigned int figure_out_maxdata(int bits)
+static int cb_pcimdda_ao_rinsn(struct comedi_device *dev,
+			       struct comedi_subdevice *s,
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	return ((unsigned int)1 << bits) - 1;
-}
+	struct cb_pcimdda_private *devpriv = dev->private;
+	int chan = CR_CHAN(insn->chanspec);
+	unsigned long offset = dev->iobase + PCIMDDA_DA_CHAN(chan);
+	int i;
 
-/*
- *  Probes for a supported device.
- *
- *  Prerequisite: private be allocated already inside dev
- *
- *  If the device is found, it returns 0 and has the following side effects:
- *
- *  o  assigns a struct pci_dev * to dev->private->pci_dev
- *  o  assigns a struct board * to dev->board_ptr
- *  o  sets dev->private->registers
- *  o  sets dev->private->dio_registers
- *
- *  Otherwise, returns a -errno on error
- */
-static int probe(struct comedi_device *dev, const struct comedi_devconfig *it);
+	for (i = 0; i < insn->n; i++) {
+		/* Initiate the simultaneous transfer */
+		inw(offset);
+
+		data[i] = devpriv->ao_readback[chan];
+	}
 
-/*---------------------------------------------------------------------------
-  FUNCTION DEFINITIONS
------------------------------------------------------------------------------*/
+	return insn->n;
+}
 
-/*
- * Attach is called by the Comedi core to configure the driver
- * for a particular board.  If you specified a board_name array
- * in the driver structure, dev->board_ptr contains that
- * address.
- */
-static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int cb_pcimdda_attach_pci(struct comedi_device *dev,
+				 struct pci_dev *pcidev)
 {
+	struct cb_pcimdda_private *devpriv;
 	struct comedi_subdevice *s;
-	int err;
+	int ret;
 
-/*
- * Allocate the private structure area.  alloc_private() is a
- * convenient macro defined in comedidev.h.
- * if this function fails (returns negative) then the private area is
- * kfree'd by comedi
- */
-	if (alloc_private(dev, sizeof(struct board_private_struct)) < 0)
-		return -ENOMEM;
+	comedi_set_hw_dev(dev, &pcidev->dev);
+	dev->board_name = dev->driver->driver_name;
 
-/*
- * If you can probe the device to determine what device in a series
- * it is, this is the place to do it.  Otherwise, dev->board_ptr
- * should already be initialized.
- */
-	err = probe(dev, it);
-	if (err)
-		return err;
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
 
-/* Output some info */
-	printk("comedi%d: %s: ", dev->minor, thisboard->name);
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	dev->iobase = pci_resource_start(pcidev, 3);
 
-/*
- * Initialize dev->board_name.  Note that we can use the "thisboard"
- * macro now, since we just initialized it in the last line.
- */
-	dev->board_name = thisboard->name;
-
-	err = comedi_alloc_subdevices(dev, 2);
-	if (err)
-		return err;
-
-	s = dev->subdevices + 0;
+	ret = comedi_alloc_subdevices(dev, 2);
+	if (ret)
+		return ret;
 
+	s = &dev->subdevices[0];
 	/* analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-	s->n_chan = thisboard->ao_chans;
-	s->maxdata = figure_out_maxdata(thisboard->ao_bits);
-	/* this is hard-coded here */
-	if (it->options[2])
-		s->range_table = &range_bipolar10;
-	else
-		s->range_table = &range_bipolar5;
-	s->insn_write = &ao_winsn;
-	s->insn_read = &ao_rinsn;
-
-	s = dev->subdevices + 1;
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
+	s->n_chan	= 6;
+	s->maxdata	= 0xffff;
+	s->range_table	= &range_bipolar5;
+	s->insn_write	= cb_pcimdda_ao_winsn;
+	s->insn_read	= cb_pcimdda_ao_rinsn;
+
+	s = &dev->subdevices[1];
 	/* digital i/o subdevice */
-	if (thisboard->dio_chans) {
-		switch (thisboard->dio_method) {
-		case DIO_8255:
-			/*
-			 * this is a straight 8255, so register us with
-			 * the 8255 driver
-			 */
-			subdev_8255_init(dev, s, NULL, devpriv->dio_registers);
-			devpriv->attached_to_8255 = 1;
-			break;
-		case DIO_INTERNAL:
-		default:
-			printk("DIO_INTERNAL not implemented yet!\n");
-			return -ENXIO;
-			break;
-		}
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
+	ret = subdev_8255_init(dev, s, NULL,
+			dev->iobase + PCIMDDA_8255_BASE_REG);
+	if (ret)
+		return ret;
 
-	printk("attached\n");
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
 
 	return 1;
 }
 
-static void detach(struct comedi_device *dev)
-{
-	if (devpriv) {
-		if (dev->subdevices && devpriv->attached_to_8255) {
-			subdev_8255_cleanup(dev, dev->subdevices + 2);
-			devpriv->attached_to_8255 = 0;
-		}
-		if (devpriv->pci_dev) {
-			if (devpriv->registers)
-				comedi_pci_disable(devpriv->pci_dev);
-			pci_dev_put(devpriv->pci_dev);
-		}
-	}
-}
-
-static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data)
+static void cb_pcimdda_detach(struct comedi_device *dev)
 {
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned long offset = devpriv->registers + chan * 2;
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
-	/* Writing a list of values to an AO channel is probably not
-	 * very useful, but that's how the interface is defined. */
-	for (i = 0; i < insn->n; i++) {
-		/*  first, load the low byte */
-		outb((char)(data[i] & 0x00ff), offset);
-		/*  next, write the high byte -- only after this is written is
-		   the channel voltage updated in the DAC, unless
-		   we're in simultaneous xfer mode (jumper on card)
-		   then a rinsn is necessary to actually update the DAC --
-		   see ao_rinsn() below... */
-		outb((char)(data[i] >> 8 & 0x00ff), offset + 1);
-
-		/* for testing only.. the actual rinsn SHOULD do an inw!
-		   (see the stuff about simultaneous XFER mode on this board) */
-		devpriv->ao_readback[chan] = data[i];
+	if (dev->subdevices)
+		subdev_8255_cleanup(dev, &dev->subdevices[1]);
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
 	}
-
-	/* return the number of samples read/written */
-	return i;
-}
-
-/* AO subdevices should have a read insn as well as a write insn.
-
-   Usually this means copying a value stored in devpriv->ao_readback.
-   However, since this board has this jumper setting called "Simultaneous
-   Xfer mode" (off by default), we will support it.  Simultaneaous xfer
-   mode is accomplished by loading ALL the values you want for AO in all the
-   channels, then READing off one of the AO registers to initiate the
-   instantaneous simultaneous update of all DAC outputs, which makes
-   all AO channels update simultaneously.  This is useful for some control
-   applications, I would imagine.
-*/
-static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data)
-{
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-
-	for (i = 0; i < insn->n; i++) {
-		inw(devpriv->registers + chan * 2);
-		/*
-		 * should I set data[i] to the result of the actual read
-		 * on the register or the cached unsigned int in
-		 * devpriv->ao_readback[]?
-		 */
-		data[i] = devpriv->ao_readback[chan];
-	}
-
-	return i;
-}
-
-/*---------------------------------------------------------------------------
-  HELPER FUNCTION DEFINITIONS
------------------------------------------------------------------------------*/
-
-/*
- *  Probes for a supported device.
- *
- *  Prerequisite: private be allocated already inside dev
- *
- *  If the device is found, it returns 0 and has the following side effects:
- *
- *  o  assigns a struct pci_dev * to dev->private->pci_dev
- *  o  assigns a struct board * to dev->board_ptr
- *  o  sets dev->private->registers
- *  o  sets dev->private->dio_registers
- *
- *  Otherwise, returns a -errno on error
- */
-static int probe(struct comedi_device *dev, const struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int index;
-	unsigned long registers;
-
-	for_each_pci_dev(pcidev) {
-		/*  is it not a computer boards card? */
-		if (pcidev->vendor != PCI_VENDOR_ID_COMPUTERBOARDS)
-			continue;
-		/*  loop through cards supported by this driver */
-		for (index = 0; index < ARRAY_SIZE(boards); index++) {
-			if (boards[index].device_id != pcidev->device)
-				continue;
-			/*  was a particular bus/slot requested? */
-			if (it->options[0] || it->options[1]) {
-				/*  are we on the wrong bus/slot? */
-				if (pcidev->bus->number != it->options[0] ||
-				    PCI_SLOT(pcidev->devfn) != it->options[1]) {
-					continue;
-				}
-			}
-			/* found ! */
-
-			devpriv->pci_dev = pcidev;
-			dev->board_ptr = boards + index;
-			if (comedi_pci_enable(pcidev, thisboard->name)) {
-				printk
-				    ("cb_pcimdda: Failed to enable PCI device and request regions\n");
-				return -EIO;
-			}
-			registers =
-			    pci_resource_start(devpriv->pci_dev,
-					       REGS_BADRINDEX);
-			devpriv->registers = registers;
-			devpriv->dio_registers
-			    = devpriv->registers + thisboard->dio_offset;
-			return 0;
-		}
-	}
-
-	printk("cb_pcimdda: No supported ComputerBoards/MeasurementComputing "
-	       "card found at the requested position\n");
-	return -ENODEV;
 }
 
 static struct comedi_driver cb_pcimdda_driver = {
 	.driver_name	= "cb_pcimdda",
 	.module		= THIS_MODULE,
-	.attach		= attach,
-	.detach		= detach,
+	.attach_pci	= cb_pcimdda_attach_pci,
+	.detach		= cb_pcimdda_detach,
 };
 
 static int __devinit cb_pcimdda_pci_probe(struct pci_dev *dev,
diff --git a/drivers/staging/comedi/drivers/comedi_bond.c b/drivers/staging/comedi/drivers/comedi_bond.c
index 5ed324c4f62..5c768bc76eb 100644
--- a/drivers/staging/comedi/drivers/comedi_bond.c
+++ b/drivers/staging/comedi/drivers/comedi_bond.c
@@ -59,40 +59,6 @@ Configuration Options:
 /* The maxiumum number of channels per subdevice. */
 #define MAX_CHANS 256
 
-#define MODULE_NAME "comedi_bond"
-#ifndef STR
-#  define STR1(x) #x
-#  define STR(x) STR1(x)
-#endif
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "If true, print extra cryptic debugging output useful"
-		 "only to developers.");
-
-#define LOG_MSG(x...) printk(KERN_INFO MODULE_NAME": "x)
-#define DEBUG(x...)							\
-	do {								\
-		if (debug)						\
-			printk(KERN_DEBUG MODULE_NAME": DEBUG: "x);	\
-	} while (0)
-#define WARNING(x...)  printk(KERN_WARNING MODULE_NAME ": WARNING: "x)
-#define ERROR(x...)  printk(KERN_ERR MODULE_NAME ": INTERNAL ERROR: "x)
-
-/*
- * Board descriptions for two imaginary boards.  Describing the
- * boards in this way is optional, and completely driver-dependent.
- * Some drivers use arrays such as this, other do not.
- */
-struct BondingBoard {
-	const char *name;
-};
-
-/*
- * Useful for shorthand access to the particular board structure
- */
-#define thisboard ((const struct BondingBoard *)dev->board_ptr)
-
 struct BondedDevice {
 	struct comedi_device *dev;
 	unsigned minor;
@@ -107,7 +73,7 @@ struct BondedDevice {
 /* this structure is for data unique to this hardware driver.  If
    several hardware drivers keep similar information in this structure,
    feel free to suggest moving the variable to the struct comedi_device struct.  */
-struct Private {
+struct comedi_bond_private {
 # define MAX_BOARD_NAME 256
 	char name[MAX_BOARD_NAME];
 	struct BondedDevice **devs;
@@ -116,12 +82,6 @@ struct Private {
 	unsigned nchans;
 };
 
-/*
- * most drivers define the following macro to make it easy to
- * access the private structure.
- */
-#define devpriv ((struct Private *)dev->private)
-
 /* DIO devices are slightly special.  Although it is possible to
  * implement the insn_read/insn_write interface, it is much more
  * useful to applications if you implement the insn_bits interface.
@@ -131,6 +91,7 @@ static int bonding_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct comedi_bond_private *devpriv = dev->private;
 #define LSAMPL_BITS (sizeof(unsigned int)*8)
 	unsigned nchans = LSAMPL_BITS, num_done = 0, i;
 
@@ -177,6 +138,7 @@ static int bonding_dio_insn_config(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
 				   struct comedi_insn *insn, unsigned int *data)
 {
+	struct comedi_bond_private *devpriv = dev->private;
 	int chan = CR_CHAN(insn->chanspec), ret, io_bits = s->io_bits;
 	unsigned int io;
 	struct BondedDevice *bdev;
@@ -230,6 +192,7 @@ static void *Realloc(const void *oldmem, size_t newlen, size_t oldlen)
 
 static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 {
+	struct comedi_bond_private *devpriv = dev->private;
 	int i;
 	struct comedi_device *devs_opened[COMEDI_NUM_BOARD_MINORS];
 
@@ -245,15 +208,18 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 		struct BondedDevice *bdev = NULL;
 
 		if (minor < 0 || minor >= COMEDI_NUM_BOARD_MINORS) {
-			ERROR("Minor %d is invalid!\n", minor);
+			dev_err(dev->class_dev,
+				"Minor %d is invalid!\n", minor);
 			return 0;
 		}
 		if (minor == dev->minor) {
-			ERROR("Cannot bond this driver to itself!\n");
+			dev_err(dev->class_dev,
+				"Cannot bond this driver to itself!\n");
 			return 0;
 		}
 		if (devs_opened[minor]) {
-			ERROR("Minor %d specified more than once!\n", minor);
+			dev_err(dev->class_dev,
+				"Minor %d specified more than once!\n", minor);
 			return 0;
 		}
 
@@ -263,7 +229,8 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 		d = devs_opened[minor] = comedi_open(file);
 
 		if (!d) {
-			ERROR("Minor %u could not be opened\n", minor);
+			dev_err(dev->class_dev,
+				"Minor %u could not be opened\n", minor);
 			return 0;
 		}
 
@@ -272,14 +239,14 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 							     sdev + 1)) > -1) {
 			nchans = comedi_get_n_channels(d, sdev);
 			if (nchans <= 0) {
-				ERROR("comedi_get_n_channels() returned %d "
-				      "on minor %u subdev %d!\n",
-				      nchans, minor, sdev);
+				dev_err(dev->class_dev,
+					"comedi_get_n_channels() returned %d on minor %u subdev %d!\n",
+					nchans, minor, sdev);
 				return 0;
 			}
 			bdev = kmalloc(sizeof(*bdev), GFP_KERNEL);
 			if (!bdev) {
-				ERROR("Out of memory.\n");
+				dev_err(dev->class_dev, "Out of memory\n");
 				return 0;
 			}
 			bdev->dev = d;
@@ -302,8 +269,8 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 			    Realloc(devpriv->devs,
 				    ++devpriv->ndevs * sizeof(bdev), tmp);
 			if (!devpriv->devs) {
-				ERROR("Could not allocate memory. "
-				      "Out of memory?");
+				dev_err(dev->class_dev,
+					"Could not allocate memory. Out of memory?\n");
 				return 0;
 			}
 
@@ -323,7 +290,7 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	if (!devpriv->nchans) {
-		ERROR("No channels found!\n");
+		dev_err(dev->class_dev, "No channels found!\n");
 		return 0;
 	}
 
@@ -333,35 +300,28 @@ static int doDevConfig(struct comedi_device *dev, struct comedi_devconfig *it)
 static int bonding_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
+	struct comedi_bond_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret;
 
-	LOG_MSG("comedi%d\n", dev->minor);
-
-	/*
-	 * Allocate the private structure area.  alloc_private() is a
-	 * convenient macro defined in comedidev.h.
-	 */
-	if (alloc_private(dev, sizeof(struct Private)) < 0)
-		return -ENOMEM;
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
 
 	/*
-	 * Setup our bonding from config params.. sets up our Private struct..
+	 * Setup our bonding from config params.. sets up our private struct..
 	 */
 	if (!doDevConfig(dev, it))
 		return -EINVAL;
 
-	/*
-	 * Initialize dev->board_name.  Note that we can use the "thisboard"
-	 * macro now, since we just initialized it in the last line.
-	 */
 	dev->board_name = devpriv->name;
 
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = devpriv->nchans;
@@ -370,9 +330,9 @@ static int bonding_attach(struct comedi_device *dev,
 	s->insn_bits = bonding_dio_insn_bits;
 	s->insn_config = bonding_dio_insn_config;
 
-	LOG_MSG("attached with %u DIO channels coming from %u different "
-		"subdevices all bonded together.  "
-		"John Lennon would be proud!\n",
+	dev_info(dev->class_dev,
+		"%s: %s attached, %u channels from %u devices\n",
+		dev->driver->driver_name, dev->board_name,
 		devpriv->nchans, devpriv->ndevs);
 
 	return 1;
@@ -380,6 +340,7 @@ static int bonding_attach(struct comedi_device *dev,
 
 static void bonding_detach(struct comedi_device *dev)
 {
+	struct comedi_bond_private *devpriv = dev->private;
 	unsigned long devs_closed = 0;
 
 	if (devpriv) {
@@ -402,25 +363,16 @@ static void bonding_detach(struct comedi_device *dev)
 	}
 }
 
-static const struct BondingBoard bondingBoards[] = {
-	{
-		.name		= "comedi_bond",
-	},
-};
-
 static struct comedi_driver bonding_driver = {
 	.driver_name	= "comedi_bond",
 	.module		= THIS_MODULE,
 	.attach		= bonding_attach,
 	.detach		= bonding_detach,
-	.board_name	= &bondingBoards[0].name,
-	.offset		= sizeof(struct BondingBoard),
-	.num_names	= ARRAY_SIZE(bondingBoards),
 };
 module_comedi_driver(bonding_driver);
 
 MODULE_AUTHOR("Calin A. Culianu");
-MODULE_DESCRIPTION(MODULE_NAME "A driver for COMEDI to bond multiple COMEDI "
+MODULE_DESCRIPTION("comedi_bond: A driver for COMEDI to bond multiple COMEDI "
 		   "devices together as one.  In the words of John Lennon: "
 		   "'And the world will live as one...'");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_fc.h b/drivers/staging/comedi/drivers/comedi_fc.h
index 4b2cfd32799..94481c637a0 100644
--- a/drivers/staging/comedi/drivers/comedi_fc.h
+++ b/drivers/staging/comedi/drivers/comedi_fc.h
@@ -73,4 +73,36 @@ static inline unsigned int cfc_bytes_per_scan(struct comedi_subdevice *subd)
 	return num_samples * bytes_per_sample(subd);
 }
 
+/**
+ * cfc_check_trigger_src() - trivially validate a comedi_cmd trigger source
+ * @src: pointer to the trigger source to validate
+ * @flags: bitmask of valid TRIG_* for the trigger
+ *
+ * This is used in "step 1" of the do_cmdtest functions of comedi drivers
+ * to vaildate the comedi_cmd triggers. The mask of the @src against the
+ * @flags allows the userspace comedilib to pass all the comedi_cmd
+ * triggers as TRIG_ANY and get back a bitmask of the valid trigger sources.
+ */
+static inline int cfc_check_trigger_src(unsigned int *src, unsigned int flags)
+{
+	unsigned int orig_src = *src;
+
+	*src = orig_src & flags;
+	if (*src == TRIG_INVALID || *src != orig_src)
+		return -EINVAL;
+	return 0;
+}
+
+/**
+ * cfc_check_trigger_is_unique() - make sure a trigger source is unique
+ * @src: the trigger source to check
+ */
+static inline int cfc_check_trigger_is_unique(unsigned int src)
+{
+	/* this test is true if more than one _src bit is set */
+	if ((src & (src - 1)) != 0)
+		return -EINVAL;
+	return 0;
+}
+
 #endif /* _COMEDI_FC_H */
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 9a63cac2434..22ef9424259 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -85,6 +85,8 @@ pin, which can be used to wake up tasks.
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 
+#include "comedi_fc.h"
+
 #define PARPORT_SIZE 3
 
 #define PARPORT_A 0
@@ -96,11 +98,12 @@ struct parport_private {
 	unsigned int c_data;
 	int enable_irq;
 };
-#define devpriv ((struct parport_private *)(dev->private))
 
 static int parport_insn_a(struct comedi_device *dev, struct comedi_subdevice *s,
 			  struct comedi_insn *insn, unsigned int *data)
 {
+	struct parport_private *devpriv = dev->private;
+
 	if (data[0]) {
 		devpriv->a_data &= ~data[0];
 		devpriv->a_data |= (data[0] & data[1]);
@@ -117,6 +120,8 @@ static int parport_insn_config_a(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct parport_private *devpriv = dev->private;
+
 	if (data[0]) {
 		s->io_bits = 0xff;
 		devpriv->c_data &= ~(1 << 5);
@@ -145,6 +150,8 @@ static int parport_insn_b(struct comedi_device *dev, struct comedi_subdevice *s,
 static int parport_insn_c(struct comedi_device *dev, struct comedi_subdevice *s,
 			  struct comedi_insn *insn, unsigned int *data)
 {
+	struct parport_private *devpriv = dev->private;
+
 	data[0] &= 0x0f;
 	if (data[0]) {
 		devpriv->c_data &= ~data[0];
@@ -171,39 +178,20 @@ static int parport_intr_cmdtest(struct comedi_device *dev,
 				struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
-
-	/* step 1 */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_FOLLOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: ignored */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -245,6 +233,8 @@ static int parport_intr_cmdtest(struct comedi_device *dev,
 static int parport_intr_cmd(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
+	struct parport_private *devpriv = dev->private;
+
 	devpriv->c_data |= 0x10;
 	outb(devpriv->c_data, dev->iobase + PARPORT_C);
 
@@ -256,7 +246,7 @@ static int parport_intr_cmd(struct comedi_device *dev,
 static int parport_intr_cancel(struct comedi_device *dev,
 			       struct comedi_subdevice *s)
 {
-	printk(KERN_DEBUG "parport_intr_cancel()\n");
+	struct parport_private *devpriv = dev->private;
 
 	devpriv->c_data &= ~0x10;
 	outb(devpriv->c_data, dev->iobase + PARPORT_C);
@@ -269,12 +259,11 @@ static int parport_intr_cancel(struct comedi_device *dev,
 static irqreturn_t parport_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 3;
+	struct parport_private *devpriv = dev->private;
+	struct comedi_subdevice *s = &dev->subdevices[3];
 
-	if (!devpriv->enable_irq) {
-		printk(KERN_ERR "comedi_parport: bogus irq, ignored\n");
+	if (!devpriv->enable_irq)
 		return IRQ_NONE;
-	}
 
 	comedi_buf_put(s->async, 0);
 	s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS;
@@ -286,41 +275,42 @@ static irqreturn_t parport_interrupt(int irq, void *d)
 static int parport_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
+	struct parport_private *devpriv;
 	int ret;
 	unsigned int irq;
 	unsigned long iobase;
 	struct comedi_subdevice *s;
 
+	dev->board_name = dev->driver->driver_name;
+
 	iobase = it->options[0];
-	printk(KERN_INFO "comedi%d: parport: 0x%04lx ", dev->minor, iobase);
-	if (!request_region(iobase, PARPORT_SIZE, "parport (comedi)")) {
-		printk(KERN_ERR "I/O port conflict\n");
+	if (!request_region(iobase, PARPORT_SIZE, dev->board_name)) {
+		dev_err(dev->class_dev, "I/O port conflict\n");
 		return -EIO;
 	}
 	dev->iobase = iobase;
 
 	irq = it->options[1];
 	if (irq) {
-		printk(KERN_INFO " irq=%u", irq);
-		ret = request_irq(irq, parport_interrupt, 0, "comedi_parport",
+		ret = request_irq(irq, parport_interrupt, 0, dev->board_name,
 				  dev);
 		if (ret < 0) {
-			printk(KERN_ERR " irq not available\n");
+			dev_err(dev->class_dev, "irq not available\n");
 			return -EINVAL;
 		}
 		dev->irq = irq;
 	}
-	dev->board_name = "parport";
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(struct parport_private));
+	ret = alloc_private(dev, sizeof(*devpriv));
 	if (ret < 0)
 		return ret;
+	devpriv = dev->private;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 8;
@@ -329,7 +319,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->insn_bits = parport_insn_a;
 	s->insn_config = parport_insn_config_a;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 5;
@@ -337,7 +327,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = parport_insn_b;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->n_chan = 4;
@@ -345,7 +335,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = parport_insn_c;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	if (irq) {
 		dev->read_subdev = s;
 		s->type = COMEDI_SUBD_DI;
@@ -366,8 +356,10 @@ static int parport_attach(struct comedi_device *dev,
 	devpriv->c_data = 0;
 	outb(devpriv->c_data, dev->iobase + PARPORT_C);
 
-	printk(KERN_INFO "\n");
-	return 1;
+	dev_info(dev->class_dev, "%s: iobase=0x%04lx, irq %sabled",
+		dev->board_name, dev->iobase, dev->irq ? "en" : "dis");
+
+	return 0;
 }
 
 static void parport_detach(struct comedi_device *dev)
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index 523a809708b..7817def1556 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -57,14 +57,6 @@ zero volts).
 #include "comedi_fc.h"
 #include <linux/timer.h>
 
-/* Board descriptions */
-struct waveform_board {
-	const char *name;
-	int ai_chans;
-	int ai_bits;
-	int have_dio;
-};
-
 #define N_CHANS 8
 
 /* Data unique to this driver */
@@ -81,7 +73,6 @@ struct waveform_private {
 	unsigned timer_running:1;
 	unsigned int ao_loopbacks[N_CHANS];
 };
-#define devpriv ((struct waveform_private *)dev->private)
 
 /* 1000 nanosec in a microsec */
 static const int nano_per_micro = 1000;
@@ -98,6 +89,7 @@ static const struct comedi_lrange waveform_ai_ranges = {
 static short fake_sawtooth(struct comedi_device *dev, unsigned int range_index,
 			   unsigned long current_time)
 {
+	struct waveform_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int offset = s->maxdata / 2;
 	u64 value;
@@ -122,6 +114,7 @@ static short fake_squarewave(struct comedi_device *dev,
 			     unsigned int range_index,
 			     unsigned long current_time)
 {
+	struct waveform_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int offset = s->maxdata / 2;
 	u64 value;
@@ -175,6 +168,7 @@ static short fake_waveform(struct comedi_device *dev, unsigned int channel,
 static void waveform_ai_interrupt(unsigned long arg)
 {
 	struct comedi_device *dev = (struct comedi_device *)arg;
+	struct waveform_private *devpriv = dev->private;
 	struct comedi_async *async = dev->read_subdev->async;
 	struct comedi_cmd *cmd = &async->cmd;
 	unsigned int i, j;
@@ -237,44 +231,23 @@ static int waveform_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW | TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW | TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->convert_src != TRIG_NOW && cmd->convert_src != TRIG_TIMER)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -362,6 +335,7 @@ static int waveform_ai_cmdtest(struct comedi_device *dev,
 static int waveform_ai_cmd(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
+	struct waveform_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
 	if (cmd->flags & TRIG_RT) {
@@ -395,6 +369,8 @@ static int waveform_ai_cmd(struct comedi_device *dev,
 static int waveform_ai_cancel(struct comedi_device *dev,
 			      struct comedi_subdevice *s)
 {
+	struct waveform_private *devpriv = dev->private;
+
 	devpriv->timer_running = 0;
 	del_timer(&devpriv->timer);
 	return 0;
@@ -404,6 +380,7 @@ static int waveform_ai_insn_read(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct waveform_private *devpriv = dev->private;
 	int i, chan = CR_CHAN(insn->chanspec);
 
 	for (i = 0; i < insn->n; i++)
@@ -416,6 +393,7 @@ static int waveform_ao_insn_write(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
+	struct waveform_private *devpriv = dev->private;
 	int i, chan = CR_CHAN(insn->chanspec);
 
 	for (i = 0; i < insn->n; i++)
@@ -427,17 +405,19 @@ static int waveform_ao_insn_write(struct comedi_device *dev,
 static int waveform_attach(struct comedi_device *dev,
 			   struct comedi_devconfig *it)
 {
-	const struct waveform_board *board = comedi_board(dev);
+	struct waveform_private *devpriv;
 	struct comedi_subdevice *s;
 	int amplitude = it->options[0];
 	int period = it->options[1];
 	int i;
 	int ret;
 
-	dev->board_name = board->name;
+	dev->board_name = dev->driver->driver_name;
 
-	if (alloc_private(dev, sizeof(struct waveform_private)) < 0)
-		return -ENOMEM;
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret < 0)
+		return ret;
+	devpriv = dev->private;
 
 	/* set default amplitude and period */
 	if (amplitude <= 0)
@@ -452,13 +432,13 @@ static int waveform_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
-	s->n_chan = board->ai_chans;
-	s->maxdata = (1 << board->ai_bits) - 1;
+	s->n_chan = N_CHANS;
+	s->maxdata = 0xffff;
 	s->range_table = &waveform_ai_ranges;
 	s->len_chanlist = s->n_chan * 2;
 	s->insn_read = waveform_ai_insn_read;
@@ -466,13 +446,13 @@ static int waveform_attach(struct comedi_device *dev,
 	s->do_cmdtest = waveform_ai_cmdtest;
 	s->cancel = waveform_ai_cancel;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	dev->write_subdev = s;
 	/* analog output subdevice (loopback) */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
-	s->n_chan = board->ai_chans;
-	s->maxdata = (1 << board->ai_bits) - 1;
+	s->n_chan = N_CHANS;
+	s->maxdata = 0xffff;
 	s->range_table = &waveform_ai_ranges;
 	s->len_chanlist = s->n_chan * 2;
 	s->insn_write = waveform_ao_insn_write;
@@ -488,35 +468,27 @@ static int waveform_attach(struct comedi_device *dev,
 	devpriv->timer.function = waveform_ai_interrupt;
 	devpriv->timer.data = (unsigned long)dev;
 
-	printk(KERN_INFO "comedi%d: comedi_test: "
-	       "%i microvolt, %li microsecond waveform attached\n", dev->minor,
-	       devpriv->uvolt_amplitude, devpriv->usec_period);
-	return 1;
+	dev_info(dev->class_dev,
+		"%s: %i microvolt, %li microsecond waveform attached\n",
+		dev->board_name,
+		devpriv->uvolt_amplitude, devpriv->usec_period);
+
+	return 0;
 }
 
 static void waveform_detach(struct comedi_device *dev)
 {
-	if (dev->private)
+	struct waveform_private *devpriv = dev->private;
+
+	if (devpriv)
 		waveform_ai_cancel(dev, dev->read_subdev);
 }
 
-static const struct waveform_board waveform_boards[] = {
-	{
-		.name		= "comedi_test",
-		.ai_chans	= N_CHANS,
-		.ai_bits	= 16,
-		.have_dio	= 0,
-	},
-};
-
 static struct comedi_driver waveform_driver = {
 	.driver_name	= "comedi_test",
 	.module		= THIS_MODULE,
 	.attach		= waveform_attach,
 	.detach		= waveform_detach,
-	.board_name	= &waveform_boards[0].name,
-	.offset		= sizeof(struct waveform_board),
-	.num_names	= ARRAY_SIZE(waveform_boards),
 };
 module_comedi_driver(waveform_driver);
 
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index 944cfeeb2b2..178a6a4bb7d 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -27,51 +27,35 @@ Author: Stefano Rivoir <s.rivoir@gts.it>
 Updated: Wed, 27 Jun 2007 13:00:06 +0100
 Status: works
 
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
+Configuration Options: not applicable, uses comedi PCI auto config
 */
 
 #include "../comedidev.h"
 
-enum contec_model {
-	PIO1616L = 0,
-};
-
-struct contec_board {
-	const char *name;
-	int model;
-	int in_ports;
-	int out_ports;
-	int in_offs;
-	int out_offs;
-	int out_boffs;
-};
-static const struct contec_board contec_boards[] = {
-	{"PIO1616L", PIO1616L, 16, 16, 0, 2, 10},
-};
-
 #define PCI_DEVICE_ID_PIO1616L 0x8172
 
-#define thisboard ((const struct contec_board *)dev->board_ptr)
+/*
+ * Register map
+ */
+#define PIO1616L_DI_REG		0x00
+#define PIO1616L_DO_REG		0x02
 
 static int contec_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	unsigned int mask = data[0];
+	unsigned int bits = data[1];
 
-	dev_dbg(dev->class_dev, "contec_do_insn_bits called\n");
-	dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]);
+	if (mask) {
+		s->state &= ~mask;
+		s->state |= (bits & mask);
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-		dev_dbg(dev->class_dev, "out: %d on %lx\n", s->state,
-			dev->iobase + thisboard->out_offs);
-		outw(s->state, dev->iobase + thisboard->out_offs);
+		outw(s->state, dev->iobase + PIO1616L_DO_REG);
 	}
+
+	data[1] = s->state;
+
 	return insn->n;
 }
 
@@ -79,87 +63,49 @@ static int contec_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
-
-	dev_dbg(dev->class_dev, "contec_di_insn_bits called\n");
-	dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]);
-
-	data[1] = inw(dev->iobase + thisboard->in_offs);
+	data[1] = inw(dev->iobase + PIO1616L_DI_REG);
 
 	return insn->n;
 }
 
-static struct pci_dev *contec_find_pci_dev(struct comedi_device *dev,
-					   struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-				slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_CONTEC ||
-		    pcidev->device != PCI_DEVICE_ID_PIO1616L)
-			continue;
-
-		dev->board_ptr = contec_boards + 0;
-		return pcidev;
-	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
-	return NULL;
-}
-
-static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int contec_attach_pci(struct comedi_device *dev,
+			     struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
 	int ret;
 
-	printk("comedi%d: contec: ", dev->minor);
+	comedi_set_hw_dev(dev, &pcidev->dev);
 
-	dev->board_name = thisboard->name;
+	dev->board_name = dev->driver->driver_name;
 
-	ret = comedi_alloc_subdevices(dev, 2);
+	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
 		return ret;
-
-	pcidev = contec_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
-		printk("error enabling PCI device and request regions!\n");
-		return -EIO;
-	}
 	dev->iobase = pci_resource_start(pcidev, 0);
-	printk(" base addr %lx ", dev->iobase);
 
-	s = dev->subdevices + 0;
-
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = contec_di_insn_bits;
-
-	s = dev->subdevices + 1;
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = contec_do_insn_bits;
-
-	printk("attached\n");
+	ret = comedi_alloc_subdevices(dev, 2);
+	if (ret)
+		return ret;
 
-	return 1;
+	s = &dev->subdevices[0];
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= contec_di_insn_bits;
+
+	s = &dev->subdevices[1];
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= contec_do_insn_bits;
+
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
+
+	return 0;
 }
 
 static void contec_detach(struct comedi_device *dev)
@@ -169,14 +115,13 @@ static void contec_detach(struct comedi_device *dev)
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver contec_pci_dio_driver = {
 	.driver_name	= "contec_pci_dio",
 	.module		= THIS_MODULE,
-	.attach		= contec_attach,
+	.attach_pci	= contec_attach_pci,
 	.detach		= contec_detach,
 };
 
@@ -192,8 +137,7 @@ static void __devexit contec_pci_dio_pci_remove(struct pci_dev *dev)
 }
 
 static DEFINE_PCI_DEVICE_TABLE(contec_pci_dio_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L),
-		.driver_data = PIO1616L },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L) },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, contec_pci_dio_pci_table);
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index ef28385c148..d13c8c5822b 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -31,16 +31,10 @@ Devices: [IOTech] DAQBoard/2000 (daqboard2000)
 Much of the functionality of this driver was determined from reading
 the source code for the Windows driver.
 
-The FPGA on the board requires initialization code, which can
-be loaded by comedi_config using the -i
-option.  The initialization code is available from http://www.comedi.org
-in the comedi_nonfree_firmware tarball.
-
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
+The FPGA on the board requires fimware, which is available from
+http://www.comedi.org in the comedi_nonfree_firmware tarball.
+
+Configuration options: not applicable, uses PCI auto config
 */
 /*
    This card was obviously never intended to leave the Windows world,
@@ -117,17 +111,17 @@ Configuration options:
 
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/firmware.h>
 
 #include "8255.h"
 
+#define DAQBOARD2000_FIRMWARE		"daqboard2000_firmware.bin"
+
 #define PCI_VENDOR_ID_IOTECH		0x1616
 
 #define DAQBOARD2000_SUBSYSTEM_IDS2 	0x0002	/* Daqboard/2000 - 2 Dacs */
 #define DAQBOARD2000_SUBSYSTEM_IDS4 	0x0004	/* Daqboard/2000 - 4 Dacs */
 
-#define DAQBOARD2000_DAQ_SIZE 		0x1002
-#define DAQBOARD2000_PLX_SIZE 		0x100
-
 /* Initialization bits for the Serial EEPROM Control Register */
 #define DAQBOARD2000_SECRProgPinHi      0x8001767e
 #define DAQBOARD2000_SECRProgPinLo      0x8000767e
@@ -143,85 +137,56 @@ Configuration options:
 #define DAQBOARD2000_CPLD_INIT 		0x0002
 #define DAQBOARD2000_CPLD_DONE 		0x0004
 
-/* Available ranges */
-static const struct comedi_lrange range_daqboard2000_ai = { 13, {
-								 RANGE(-10, 10),
-								 RANGE(-5, 5),
-								 RANGE(-2.5,
-								       2.5),
-								 RANGE(-1.25,
-								       1.25),
-								 RANGE(-0.625,
-								       0.625),
-								 RANGE(-0.3125,
-								       0.3125),
-								 RANGE(-0.156,
-								       0.156),
-								 RANGE(0, 10),
-								 RANGE(0, 5),
-								 RANGE(0, 2.5),
-								 RANGE(0, 1.25),
-								 RANGE(0,
-								       0.625),
-								 RANGE(0,
-								       0.3125)
-								 }
-};
-
-static const struct comedi_lrange range_daqboard2000_ao = { 1, {
-								RANGE(-10, 10)
-								}
+static const struct comedi_lrange range_daqboard2000_ai = {
+	13, {
+		BIP_RANGE(10),
+		BIP_RANGE(5),
+		BIP_RANGE(2.5),
+		BIP_RANGE(1.25),
+		BIP_RANGE(0.625),
+		BIP_RANGE(0.3125),
+		BIP_RANGE(0.156),
+		UNI_RANGE(10),
+		UNI_RANGE(5),
+		UNI_RANGE(2.5),
+		UNI_RANGE(1.25),
+		UNI_RANGE(0.625),
+		UNI_RANGE(0.3125)
+	}
 };
 
-struct daqboard2000_hw {
-	volatile u16 acqControl;	/*  0x00 */
-	volatile u16 acqScanListFIFO;	/*  0x02 */
-	volatile u32 acqPacerClockDivLow;	/*  0x04 */
-
-	volatile u16 acqScanCounter;	/*  0x08 */
-	volatile u16 acqPacerClockDivHigh;	/*  0x0a */
-	volatile u16 acqTriggerCount;	/*  0x0c */
-	volatile u16 fill2;	/*  0x0e */
-	volatile u16 acqResultsFIFO;	/*  0x10 */
-	volatile u16 fill3;	/*  0x12 */
-	volatile u16 acqResultsShadow;	/*  0x14 */
-	volatile u16 fill4;	/*  0x16 */
-	volatile u16 acqAdcResult;	/*  0x18 */
-	volatile u16 fill5;	/*  0x1a */
-	volatile u16 dacScanCounter;	/*  0x1c */
-	volatile u16 fill6;	/*  0x1e */
-
-	volatile u16 dacControl;	/*  0x20 */
-	volatile u16 fill7;	/*  0x22 */
-	volatile s16 dacFIFO;	/*  0x24 */
-	volatile u16 fill8[2];	/*  0x26 */
-	volatile u16 dacPacerClockDiv;	/*  0x2a */
-	volatile u16 refDacs;	/*  0x2c */
-	volatile u16 fill9;	/*  0x2e */
-
-	volatile u16 dioControl;	/*  0x30 */
-	volatile s16 dioP3hsioData;	/*  0x32 */
-	volatile u16 dioP3Control;	/*  0x34 */
-	volatile u16 calEepromControl;	/*  0x36 */
-	volatile s16 dacSetting[4];	/*  0x38 */
-	volatile s16 dioP2ExpansionIO8Bit[32];	/*  0x40 */
-
-	volatile u16 ctrTmrControl;	/*  0x80 */
-	volatile u16 fill10[3];	/*  0x82 */
-	volatile s16 ctrInput[4];	/*  0x88 */
-	volatile u16 fill11[8];	/*  0x90 */
-	volatile u16 timerDivisor[2];	/*  0xa0 */
-	volatile u16 fill12[6];	/*  0xa4 */
-
-	volatile u16 dmaControl;	/*  0xb0 */
-	volatile u16 trigControl;	/*  0xb2 */
-	volatile u16 fill13[2];	/*  0xb4 */
-	volatile u16 calEeprom;	/*  0xb8 */
-	volatile u16 acqDigitalMark;	/*  0xba */
-	volatile u16 trigDacs;	/*  0xbc */
-	volatile u16 fill14;	/*  0xbe */
-	volatile s16 dioP2ExpansionIO16Bit[32];	/*  0xc0 */
-};
+/*
+ * Register Memory Map
+ */
+#define acqControl			0x00		/* u16 */
+#define acqScanListFIFO			0x02		/* u16 */
+#define acqPacerClockDivLow		0x04		/* u32 */
+#define acqScanCounter			0x08		/* u16 */
+#define acqPacerClockDivHigh		0x0a		/* u16 */
+#define acqTriggerCount			0x0c		/* u16 */
+#define acqResultsFIFO			0x10		/* u16 */
+#define acqResultsShadow		0x14		/* u16 */
+#define acqAdcResult			0x18		/* u16 */
+#define dacScanCounter			0x1c		/* u16 */
+#define dacControl			0x20		/* u16 */
+#define dacFIFO				0x24		/* s16 */
+#define dacPacerClockDiv		0x2a		/* u16 */
+#define refDacs				0x2c		/* u16 */
+#define dioControl			0x30		/* u16 */
+#define dioP3hsioData			0x32		/* s16 */
+#define dioP3Control			0x34		/* u16 */
+#define calEepromControl		0x36		/* u16 */
+#define dacSetting(x)			(0x38 + (x)*2)	/* s16 */
+#define dioP2ExpansionIO8Bit		0x40		/* s16 */
+#define ctrTmrControl			0x80		/* u16 */
+#define ctrInput(x)			(0x88 + (x)*2)	/* s16 */
+#define timerDivisor(x)			(0xa0 + (x)*2)	/* u16 */
+#define dmaControl			0xb0		/* u16 */
+#define trigControl			0xb2		/* u16 */
+#define calEeprom			0xb8		/* u16 */
+#define acqDigitalMark			0xba		/* u16 */
+#define trigDacs			0xbc		/* u16 */
+#define dioP2ExpansionIO16Bit(x)	(0xc0 + (x)*2)	/* s16 */
 
 /* Scan Sequencer programming */
 #define DAQBOARD2000_SeqStartScanList            0x0011
@@ -311,27 +276,23 @@ static const struct daq200_boardtype boardtypes[] = {
 	{"ids4", DAQBOARD2000_SUBSYSTEM_IDS4},
 };
 
-#define this_board ((const struct daq200_boardtype *)dev->board_ptr)
-
 struct daqboard2000_private {
 	enum {
 		card_daqboard_2000
 	} card;
-	void *daq;
+	void __iomem *daq;
 	void __iomem *plx;
 	unsigned int ao_readback[2];
 };
 
-#define devpriv ((struct daqboard2000_private *)dev->private)
-
 static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry)
 {
-	struct daqboard2000_hw *fpga = devpriv->daq;
+	struct daqboard2000_private *devpriv = dev->private;
 
-/* udelay(4); */
-	fpga->acqScanListFIFO = entry & 0x00ff;
-/* udelay(4); */
-	fpga->acqScanListFIFO = (entry >> 8) & 0x00ff;
+	/* udelay(4); */
+	writew(entry & 0x00ff, devpriv->daq + acqScanListFIFO);
+	/* udelay(4); */
+	writew((entry >> 8) & 0x00ff, devpriv->daq + acqScanListFIFO);
 }
 
 static void setup_sampling(struct comedi_device *dev, int chan, int gain)
@@ -372,7 +333,6 @@ static void setup_sampling(struct comedi_device *dev, int chan, int gain)
 	/* These should be read from EEPROM */
 	word2 |= 0x0800;
 	word3 |= 0xc000;
-/*  printk("%d %4.4x %4.4x %4.4x %4.4x\n", chan, word0, word1, word2, word3);*/
 	writeAcqScanListEntry(dev, word0);
 	writeAcqScanListEntry(dev, word1);
 	writeAcqScanListEntry(dev, word2);
@@ -384,21 +344,22 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev,
 				     struct comedi_insn *insn,
 				     unsigned int *data)
 {
-	int i;
-	struct daqboard2000_hw *fpga = devpriv->daq;
+	struct daqboard2000_private *devpriv = dev->private;
+	unsigned int val;
 	int gain, chan, timeout;
+	int i;
 
-	fpga->acqControl =
-	    DAQBOARD2000_AcqResetScanListFifo |
-	    DAQBOARD2000_AcqResetResultsFifo | DAQBOARD2000_AcqResetConfigPipe;
+	writew(DAQBOARD2000_AcqResetScanListFifo |
+	       DAQBOARD2000_AcqResetResultsFifo |
+	       DAQBOARD2000_AcqResetConfigPipe, devpriv->daq + acqControl);
 
 	/*
 	 * If pacer clock is not set to some high value (> 10 us), we
 	 * risk multiple samples to be put into the result FIFO.
 	 */
 	/* 1 second, should be long enough */
-	fpga->acqPacerClockDivLow = 1000000;
-	fpga->acqPacerClockDivHigh = 0;
+	writel(1000000, devpriv->daq + acqPacerClockDivLow);
+	writew(0, devpriv->daq + acqPacerClockDivHigh);
 
 	gain = CR_RANGE(insn->chanspec);
 	chan = CR_CHAN(insn->chanspec);
@@ -410,28 +371,30 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev,
 	for (i = 0; i < insn->n; i++) {
 		setup_sampling(dev, chan, gain);
 		/* Enable reading from the scanlist FIFO */
-		fpga->acqControl = DAQBOARD2000_SeqStartScanList;
+		writew(DAQBOARD2000_SeqStartScanList,
+		       devpriv->daq + acqControl);
 		for (timeout = 0; timeout < 20; timeout++) {
-			if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull)
+			val = readw(devpriv->daq + acqControl);
+			if (val & DAQBOARD2000_AcqConfigPipeFull)
 				break;
 			/* udelay(2); */
 		}
-		fpga->acqControl = DAQBOARD2000_AdcPacerEnable;
+		writew(DAQBOARD2000_AdcPacerEnable, devpriv->daq + acqControl);
 		for (timeout = 0; timeout < 20; timeout++) {
-			if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning)
+			val = readw(devpriv->daq + acqControl);
+			if (val & DAQBOARD2000_AcqLogicScanning)
 				break;
 			/* udelay(2); */
 		}
 		for (timeout = 0; timeout < 20; timeout++) {
-			if (fpga->acqControl &
-			    DAQBOARD2000_AcqResultsFIFOHasValidData) {
+			val = readw(devpriv->daq + acqControl);
+			if (val & DAQBOARD2000_AcqResultsFIFOHasValidData)
 				break;
-			}
 			/* udelay(2); */
 		}
-		data[i] = fpga->acqResultsFIFO;
-		fpga->acqControl = DAQBOARD2000_AdcPacerDisable;
-		fpga->acqControl = DAQBOARD2000_SeqStopScanList;
+		data[i] = readw(devpriv->daq + acqResultsFIFO);
+		writew(DAQBOARD2000_AdcPacerDisable, devpriv->daq + acqControl);
+		writew(DAQBOARD2000_SeqStopScanList, devpriv->daq + acqControl);
 	}
 
 	return i;
@@ -442,8 +405,9 @@ static int daqboard2000_ao_insn_read(struct comedi_device *dev,
 				     struct comedi_insn *insn,
 				     unsigned int *data)
 {
-	int i;
+	struct daqboard2000_private *devpriv = dev->private;
 	int chan = CR_CHAN(insn->chanspec);
+	int i;
 
 	for (i = 0; i < insn->n; i++)
 		data[i] = devpriv->ao_readback[chan];
@@ -456,28 +420,39 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
-	int i;
+	struct daqboard2000_private *devpriv = dev->private;
 	int chan = CR_CHAN(insn->chanspec);
-	struct daqboard2000_hw *fpga = devpriv->daq;
+	unsigned int val;
 	int timeout;
+	int i;
 
 	for (i = 0; i < insn->n; i++) {
+#if 0
 		/*
-		 * OK, since it works OK without enabling the DAC's, let's keep
-		 * it as simple as possible...
+		 * OK, since it works OK without enabling the DAC's,
+		 * let's keep it as simple as possible...
 		 */
-		/* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; udelay(1000); */
-		fpga->dacSetting[chan] = data[i];
+		writew((chan + 2) * 0x0010 | 0x0001,
+		       devpriv->daq + dacControl);
+		udelay(1000);
+#endif
+		writew(data[i], devpriv->daq + dacSetting(chan));
 		for (timeout = 0; timeout < 20; timeout++) {
-			if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0)
+			val = readw(devpriv->daq + dacControl);
+			if ((val & ((chan + 1) * 0x0010)) == 0)
 				break;
 			/* udelay(2); */
 		}
 		devpriv->ao_readback[chan] = data[i];
+#if 0
 		/*
-		 * Since we never enabled the DAC's, we don't need to disable it...
-		 * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; udelay(1000);
+		 * Since we never enabled the DAC's, we don't need
+		 * to disable it...
 		 */
+		writew((chan + 2) * 0x0010 | 0x0000,
+		       devpriv->daq + dacControl);
+		udelay(1000);
+#endif
 	}
 
 	return i;
@@ -485,7 +460,8 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev,
 
 static void daqboard2000_resetLocalBus(struct comedi_device *dev)
 {
-	dev_dbg(dev->class_dev, "daqboard2000_resetLocalBus\n");
+	struct daqboard2000_private *devpriv = dev->private;
+
 	writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c);
 	udelay(10000);
 	writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c);
@@ -494,7 +470,8 @@ static void daqboard2000_resetLocalBus(struct comedi_device *dev)
 
 static void daqboard2000_reloadPLX(struct comedi_device *dev)
 {
-	dev_dbg(dev->class_dev, "daqboard2000_reloadPLX\n");
+	struct daqboard2000_private *devpriv = dev->private;
+
 	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
 	udelay(10000);
 	writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c);
@@ -505,7 +482,8 @@ static void daqboard2000_reloadPLX(struct comedi_device *dev)
 
 static void daqboard2000_pulseProgPin(struct comedi_device *dev)
 {
-	dev_dbg(dev->class_dev, "daqboard2000_pulseProgPin 1\n");
+	struct daqboard2000_private *devpriv = dev->private;
+
 	writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c);
 	udelay(10000);
 	writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c);
@@ -514,6 +492,7 @@ static void daqboard2000_pulseProgPin(struct comedi_device *dev)
 
 static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
 {
+	struct daqboard2000_private *devpriv = dev->private;
 	int result = 0;
 	int i;
 	int cpld;
@@ -533,6 +512,7 @@ static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
 
 static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
 {
+	struct daqboard2000_private *devpriv = dev->private;
 	int result = 0;
 
 	udelay(10);
@@ -545,41 +525,29 @@ static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
 }
 
 static int initialize_daqboard2000(struct comedi_device *dev,
-				   unsigned char *cpld_array, int len)
+				   const u8 *cpld_array, size_t len)
 {
+	struct daqboard2000_private *devpriv = dev->private;
 	int result = -EIO;
 	/* Read the serial EEPROM control register */
 	int secr;
 	int retry;
-	int i;
+	size_t i;
 
 	/* Check to make sure the serial eeprom is present on the board */
 	secr = readl(devpriv->plx + 0x6c);
-	if (!(secr & DAQBOARD2000_EEPROM_PRESENT)) {
-#ifdef DEBUG_EEPROM
-		dev_dbg(dev->class_dev, "no serial eeprom\n");
-#endif
+	if (!(secr & DAQBOARD2000_EEPROM_PRESENT))
 		return -EIO;
-	}
 
 	for (retry = 0; retry < 3; retry++) {
-#ifdef DEBUG_EEPROM
-		dev_dbg(dev->class_dev, "Programming EEPROM try %x\n", retry);
-#endif
-
 		daqboard2000_resetLocalBus(dev);
 		daqboard2000_reloadPLX(dev);
 		daqboard2000_pulseProgPin(dev);
 		if (daqboard2000_pollCPLD(dev, DAQBOARD2000_CPLD_INIT)) {
 			for (i = 0; i < len; i++) {
-				if (cpld_array[i] == 0xff
-				    && cpld_array[i + 1] == 0x20) {
-#ifdef DEBUG_EEPROM
-					dev_dbg(dev->class_dev,
-						"Preamble found at %d\n", i);
-#endif
+				if (cpld_array[i] == 0xff &&
+				    cpld_array[i + 1] == 0x20)
 					break;
-				}
 			}
 			for (; i < len; i += 2) {
 				int data =
@@ -588,9 +556,6 @@ static int initialize_daqboard2000(struct comedi_device *dev,
 					break;
 			}
 			if (i >= len) {
-#ifdef DEBUG_EEPROM
-				dev_dbg(dev->class_dev, "Programmed\n");
-#endif
 				daqboard2000_resetLocalBus(dev);
 				daqboard2000_reloadPLX(dev);
 				result = 0;
@@ -601,28 +566,45 @@ static int initialize_daqboard2000(struct comedi_device *dev,
 	return result;
 }
 
+static int daqboard2000_upload_firmware(struct comedi_device *dev)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	const struct firmware *fw;
+	int ret;
+
+	ret = request_firmware(&fw, DAQBOARD2000_FIRMWARE, &pcidev->dev);
+	if (ret)
+		return ret;
+
+	ret = initialize_daqboard2000(dev, fw->data, fw->size);
+	release_firmware(fw);
+
+	return ret;
+}
+
 static void daqboard2000_adcStopDmaTransfer(struct comedi_device *dev)
 {
-/*  printk("Implement: daqboard2000_adcStopDmaTransfer\n");*/
 }
 
 static void daqboard2000_adcDisarm(struct comedi_device *dev)
 {
-	struct daqboard2000_hw *fpga = devpriv->daq;
+	struct daqboard2000_private *devpriv = dev->private;
 
 	/* Disable hardware triggers */
 	udelay(2);
-	fpga->trigControl = DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable;
+	writew(DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable,
+	       devpriv->daq + trigControl);
 	udelay(2);
-	fpga->trigControl = DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable;
+	writew(DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable,
+	       devpriv->daq + trigControl);
 
 	/* Stop the scan list FIFO from loading the configuration pipe */
 	udelay(2);
-	fpga->acqControl = DAQBOARD2000_SeqStopScanList;
+	writew(DAQBOARD2000_SeqStopScanList, devpriv->daq + acqControl);
 
 	/* Stop the pacer clock */
 	udelay(2);
-	fpga->acqControl = DAQBOARD2000_AdcPacerDisable;
+	writew(DAQBOARD2000_AdcPacerDisable, devpriv->daq + acqControl);
 
 	/* Stop the input dma (abort channel 1) */
 	daqboard2000_adcStopDmaTransfer(dev);
@@ -630,41 +612,39 @@ static void daqboard2000_adcDisarm(struct comedi_device *dev)
 
 static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 {
-	struct daqboard2000_hw *fpga = devpriv->daq;
+	struct daqboard2000_private *devpriv = dev->private;
+	unsigned int val;
 	int timeout;
 
 	/*  Set the + reference dac value in the FPGA */
-	fpga->refDacs = 0x80 | DAQBOARD2000_PosRefDacSelect;
+	writew(0x80 | DAQBOARD2000_PosRefDacSelect, devpriv->daq + refDacs);
 	for (timeout = 0; timeout < 20; timeout++) {
-		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0)
+		val = readw(devpriv->daq + dacControl);
+		if ((val & DAQBOARD2000_RefBusy) == 0)
 			break;
 		udelay(2);
 	}
-/*  printk("DAQBOARD2000_PosRefDacSelect %d\n", timeout);*/
 
 	/*  Set the - reference dac value in the FPGA */
-	fpga->refDacs = 0x80 | DAQBOARD2000_NegRefDacSelect;
+	writew(0x80 | DAQBOARD2000_NegRefDacSelect, devpriv->daq + refDacs);
 	for (timeout = 0; timeout < 20; timeout++) {
-		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0)
+		val = readw(devpriv->daq + dacControl);
+		if ((val & DAQBOARD2000_RefBusy) == 0)
 			break;
 		udelay(2);
 	}
-/*  printk("DAQBOARD2000_NegRefDacSelect %d\n", timeout);*/
 }
 
 static void daqboard2000_initializeCtrs(struct comedi_device *dev)
 {
-/*  printk("Implement: daqboard2000_initializeCtrs\n");*/
 }
 
 static void daqboard2000_initializeTmrs(struct comedi_device *dev)
 {
-/*  printk("Implement: daqboard2000_initializeTmrs\n");*/
 }
 
 static void daqboard2000_dacDisarm(struct comedi_device *dev)
 {
-/*  printk("Implement: daqboard2000_dacDisarm\n");*/
 }
 
 static void daqboard2000_initializeAdc(struct comedi_device *dev)
@@ -680,89 +660,66 @@ static void daqboard2000_initializeDac(struct comedi_device *dev)
 	daqboard2000_dacDisarm(dev);
 }
 
-/*
-The test command, REMOVE!!:
-
-rmmod daqboard2000 ; rmmod comedi; make install ; modprobe daqboard2000; /usr/sbin/comedi_config /dev/comedi0 daqboard/2000 ; tail -40 /var/log/messages
-*/
-
 static int daqboard2000_8255_cb(int dir, int port, int data,
 				unsigned long ioaddr)
 {
-	int result = 0;
+	void __iomem *mmio_base = (void __iomem *)ioaddr;
+
 	if (dir) {
-		writew(data, ((void *)ioaddr) + port * 2);
-		result = 0;
+		writew(data, mmio_base + port * 2);
+		return 0;
 	} else {
-		result = readw(((void *)ioaddr) + port * 2);
+		return readw(mmio_base + port * 2);
 	}
-/*
-  printk("daqboard2000_8255_cb %x %d %d %2.2x -> %2.2x\n",
-        arg, dir, port, data, result);
-*/
-	return result;
 }
 
-static struct pci_dev *daqboard2000_find_pci_dev(struct comedi_device *dev,
-						 struct comedi_devconfig *it)
+static const void *daqboard2000_find_boardinfo(struct comedi_device *dev,
+					       struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
+	const struct daq200_boardtype *board;
 	int i;
 
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-			    slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_IOTECH ||
-		    pcidev->device != 0x0409)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {
-			if (boardtypes[i].id != pcidev->subsystem_device)
-				continue;
-			dev->board_ptr = boardtypes + i;
-			return pcidev;
-		}
+	if (pcidev->subsystem_device != PCI_VENDOR_ID_IOTECH)
+		return NULL;
+
+	for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {
+		board = &boardtypes[i];
+		if (pcidev->subsystem_device == board->id)
+			return board;
 	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
 	return NULL;
 }
 
-static int daqboard2000_attach(struct comedi_device *dev,
-			       struct comedi_devconfig *it)
+static int daqboard2000_attach_pci(struct comedi_device *dev,
+				   struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev;
+	const struct daq200_boardtype *board;
+	struct daqboard2000_private *devpriv;
 	struct comedi_subdevice *s;
-	void *aux_data;
-	unsigned int aux_len;
 	int result;
 
-	result = alloc_private(dev, sizeof(struct daqboard2000_private));
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	board = daqboard2000_find_boardinfo(dev, pcidev);
+	if (!board)
+		return -ENODEV;
+	dev->board_ptr = board;
+	dev->board_name = board->name;
+
+	result = alloc_private(dev, sizeof(*devpriv));
 	if (result < 0)
 		return -ENOMEM;
+	devpriv = dev->private;
 
-	pcidev = daqboard2000_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	result = comedi_pci_enable(pcidev, "daqboard2000");
-	if (result < 0) {
-		dev_err(dev->class_dev,
-			"failed to enable PCI device and request regions\n");
-		return -EIO;
-	}
-	dev->iobase = pci_resource_start(pcidev, 2);
+	result = comedi_pci_enable(pcidev, dev->driver->driver_name);
+	if (result < 0)
+		return result;
+	dev->iobase = 1;	/* the "detach" needs this */
 
-	devpriv->plx =
-	    ioremap(pci_resource_start(pcidev, 0), DAQBOARD2000_PLX_SIZE);
-	devpriv->daq = ioremap(dev->iobase, DAQBOARD2000_DAQ_SIZE);
+	devpriv->plx = ioremap(pci_resource_start(pcidev, 0),
+			       pci_resource_len(pcidev, 0));
+	devpriv->daq = ioremap(pci_resource_start(pcidev, 2),
+			       pci_resource_len(pcidev, 2));
 	if (!devpriv->plx || !devpriv->daq)
 		return -ENOMEM;
 
@@ -772,38 +729,14 @@ static int daqboard2000_attach(struct comedi_device *dev,
 
 	readl(devpriv->plx + 0x6c);
 
-	/*
-	   u8 interrupt;
-	   Windows code does restore interrupts, but since we don't use them...
-	   pci_read_config_byte(pcidev, PCI_INTERRUPT_LINE, &interrupt);
-	   printk("Interrupt before is: %x\n", interrupt);
-	 */
-
-	aux_data = comedi_aux_data(it->options, 0);
-	aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
-
-	if (aux_data && aux_len) {
-		result = initialize_daqboard2000(dev, aux_data, aux_len);
-	} else {
-		dev_dbg(dev->class_dev,
-			"no FPGA initialization code, aborting\n");
-		result = -EIO;
-	}
+	result = daqboard2000_upload_firmware(dev);
 	if (result < 0)
-		goto out;
+		return result;
+
 	daqboard2000_initializeAdc(dev);
 	daqboard2000_initializeDac(dev);
-	/*
-	   Windows code does restore interrupts, but since we don't use them...
-	   pci_read_config_byte(pcidev, PCI_INTERRUPT_LINE, &interrupt);
-	   printk("Interrupt after is: %x\n", interrupt);
-	 */
-
-	dev->iobase = (unsigned long)devpriv->daq;
-
-	dev->board_name = this_board->name;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* ai subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -812,7 +745,7 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	s->insn_read = daqboard2000_ai_insn_read;
 	s->range_table = &range_daqboard2000_ai;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* ao subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -820,22 +753,27 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	s->maxdata = 0xffff;
 	s->insn_read = daqboard2000_ao_insn_read;
 	s->insn_write = daqboard2000_ao_insn_write;
-	s->range_table = &range_daqboard2000_ao;
+	s->range_table = &range_bipolar10;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	result = subdev_8255_init(dev, s, daqboard2000_8255_cb,
-				  (unsigned long)(dev->iobase + 0x40));
+			(unsigned long)(devpriv->daq + dioP2ExpansionIO8Bit));
+	if (result)
+		return result;
 
-out:
-	return result;
+	dev_info(dev->class_dev, "%s: %s attached\n",
+		dev->driver->driver_name, dev->board_name);
+
+	return 0;
 }
 
 static void daqboard2000_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct daqboard2000_private *devpriv = dev->private;
 
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 2);
+		subdev_8255_cleanup(dev, &dev->subdevices[2]);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (devpriv) {
@@ -854,7 +792,7 @@ static void daqboard2000_detach(struct comedi_device *dev)
 static struct comedi_driver daqboard2000_driver = {
 	.driver_name	= "daqboard2000",
 	.module		= THIS_MODULE,
-	.attach		= daqboard2000_attach,
+	.attach_pci	= daqboard2000_attach_pci,
 	.detach		= daqboard2000_detach,
 };
 
@@ -886,3 +824,4 @@ module_comedi_pci_driver(daqboard2000_driver, daqboard2000_pci_driver);
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(DAQBOARD2000_FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 874e02e4766..5fd21fa6c1c 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -32,8 +32,9 @@
  *   [ComputerBoards] DAS08 (isa-das08), DAS08-PGM (das08-pgm),
  *   DAS08-PGH (das08-pgh), DAS08-PGL (das08-pgl), DAS08-AOH (das08-aoh),
  *   DAS08-AOL (das08-aol), DAS08-AOM (das08-aom), DAS08/JR-AO (das08/jr-ao),
- *   DAS08/JR-16-AO (das08jr-16-ao), PCI-DAS08 (pci-das08 or das08),
+ *   DAS08/JR-16-AO (das08jr-16-ao), PCI-DAS08 (pci-das08),
  *   PC104-DAS08 (pc104-das08), DAS08/JR/16 (das08jr/16)
+ * Updated: Fri, 31 Aug 2012 19:19:06 +0100
  * Status: works
  *
  * This is a rewrite of the das08 and das08jr drivers.
@@ -41,9 +42,8 @@
  * Options (for ISA cards):
  *		[0] - base io address
  *
- * Options (for pci-das08):
- *		[0] - bus  (optional)
- *		[1] = slot (optional)
+ * Manual configuration of PCI cards is not supported; they are
+ * configured automatically.
  *
  * The das08 driver doesn't support asynchronous commands, since
  * the cheap das08 hardware doesn't really support them.  The
@@ -61,9 +61,9 @@
 
 #define DRV_NAME "das08"
 
-#define DO_COMEDI_DRIVER_REGISTER \
-	(IS_ENABLED(CONFIG_COMEDI_DAS08_ISA) || \
-	 IS_ENABLED(CONFIG_COMEDI_DAS08_PCI))
+#define DO_ISA IS_ENABLED(CONFIG_COMEDI_DAS08_ISA)
+#define DO_PCI IS_ENABLED(CONFIG_COMEDI_DAS08_PCI)
+#define DO_COMEDI_DRIVER_REGISTER (DO_ISA || DO_PCI)
 
 #define PCI_VENDOR_ID_COMPUTERBOARDS 0x1307
 #define PCI_DEVICE_ID_PCIDAS08 0x29
@@ -236,6 +236,16 @@ static const int *const das08_gainlists[] = {
 	das08_pgm_gainlist,
 };
 
+static inline bool is_isa_board(const struct das08_board_struct *board)
+{
+	return DO_ISA && board->bustype == isa;
+}
+
+static inline bool is_pci_board(const struct das08_board_struct *board)
+{
+	return DO_PCI && board->bustype == pci;
+}
+
 #define TIMEOUT 100000
 
 static int das08_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
@@ -342,9 +352,9 @@ static int das08_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
 	return insn->n;
 }
 
-static int __maybe_unused
-das08jr_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
-		 struct comedi_insn *insn, unsigned int *data)
+static int das08jr_di_rbits(struct comedi_device *dev,
+			    struct comedi_subdevice *s,
+			    struct comedi_insn *insn, unsigned int *data)
 {
 	data[0] = 0;
 	data[1] = inb(dev->iobase + DAS08JR_DIO);
@@ -352,9 +362,9 @@ das08jr_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
 	return insn->n;
 }
 
-static int __maybe_unused
-das08jr_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
-		 struct comedi_insn *insn, unsigned int *data)
+static int das08jr_do_wbits(struct comedi_device *dev,
+			    struct comedi_subdevice *s,
+			    struct comedi_insn *insn, unsigned int *data)
 {
 	struct das08_private_struct *devpriv = dev->private;
 
@@ -369,88 +379,92 @@ das08jr_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
 	return insn->n;
 }
 
-static int __maybe_unused
-das08jr_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		 struct comedi_insn *insn, unsigned int *data)
+static void das08_ao_set_data(struct comedi_device *dev,
+			      unsigned int chan, unsigned int data)
 {
-	int n;
-	int lsb, msb;
-	int chan;
-
-	lsb = data[0] & 0xff;
-	msb = (data[0] >> 8) & 0xf;
-
-	chan = CR_CHAN(insn->chanspec);
+	const struct das08_board_struct *thisboard = comedi_board(dev);
+	struct das08_private_struct *devpriv = dev->private;
+	unsigned char lsb;
+	unsigned char msb;
 
-	for (n = 0; n < insn->n; n++) {
-#if 0
-		outb(lsb, dev->iobase + devpriv->ao_offset_lsb[chan]);
-		outb(msb, dev->iobase + devpriv->ao_offset_msb[chan]);
-#else
+	lsb = data & 0xff;
+	msb = (data >> 8) & 0xff;
+	if (thisboard->is_jr) {
 		outb(lsb, dev->iobase + DAS08JR_AO_LSB(chan));
 		outb(msb, dev->iobase + DAS08JR_AO_MSB(chan));
-#endif
-
 		/* load DACs */
 		inb(dev->iobase + DAS08JR_DIO);
+	} else {
+		outb(lsb, dev->iobase + DAS08AO_AO_LSB(chan));
+		outb(msb, dev->iobase + DAS08AO_AO_MSB(chan));
+		/* load DACs */
+		inb(dev->iobase + DAS08AO_AO_UPDATE);
 	}
-
-	return n;
+	devpriv->ao_readback[chan] = data;
 }
 
-/*
- *
- * The -aox boards have the DACs at a different offset and use
- * a different method to force an update.
- *
- */
-static int __maybe_unused
-das08ao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		 struct comedi_insn *insn, unsigned int *data)
+static void das08_ao_initialize(struct comedi_device *dev,
+				struct comedi_subdevice *s)
 {
 	int n;
-	int lsb, msb;
-	int chan;
+	unsigned int data;
 
-	lsb = data[0] & 0xff;
-	msb = (data[0] >> 8) & 0xf;
+	data = s->maxdata / 2;	/* should be about 0 volts */
+	for (n = 0; n < s->n_chan; n++)
+		das08_ao_set_data(dev, n, data);
+}
+
+static int das08_ao_winsn(struct comedi_device *dev,
+			  struct comedi_subdevice *s,
+			  struct comedi_insn *insn, unsigned int *data)
+{
+	unsigned int n;
+	unsigned int chan;
 
 	chan = CR_CHAN(insn->chanspec);
 
-	for (n = 0; n < insn->n; n++) {
-#if 0
-		outb(lsb, dev->iobase + devpriv->ao_offset_lsb[chan]);
-		outb(msb, dev->iobase + devpriv->ao_offset_msb[chan]);
-#else
-		outb(lsb, dev->iobase + DAS08AO_AO_LSB(chan));
-		outb(msb, dev->iobase + DAS08AO_AO_MSB(chan));
-#endif
+	for (n = 0; n < insn->n; n++)
+		das08_ao_set_data(dev, chan, *data);
 
-		/* load DACs */
-		inb(dev->iobase + DAS08AO_AO_UPDATE);
-	}
+	return n;
+}
+
+static int das08_ao_rinsn(struct comedi_device *dev,
+			  struct comedi_subdevice *s,
+			  struct comedi_insn *insn, unsigned int *data)
+{
+	struct das08_private_struct *devpriv = dev->private;
+	unsigned int n;
+	unsigned int chan;
+
+	chan = CR_CHAN(insn->chanspec);
+
+	for (n = 0; n < insn->n; n++)
+		data[n] = devpriv->ao_readback[chan];
 
 	return n;
 }
 
 static void i8254_initialize(struct comedi_device *dev)
 {
-	struct das08_private_struct *devpriv = dev->private;
+	const struct das08_board_struct *thisboard = comedi_board(dev);
+	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
 	unsigned int mode = I8254_MODE0 | I8254_BINARY;
 	int i;
 
 	for (i = 0; i < 3; ++i)
-		i8254_set_mode(devpriv->i8254_iobase, 0, i, mode);
+		i8254_set_mode(i8254_iobase, 0, i, mode);
 }
 
 static int das08_counter_read(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn, unsigned int *data)
 {
-	struct das08_private_struct *devpriv = dev->private;
+	const struct das08_board_struct *thisboard = comedi_board(dev);
+	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
 	int chan = insn->chanspec;
 
-	data[0] = i8254_read(devpriv->i8254_iobase, 0, chan);
+	data[0] = i8254_read(i8254_iobase, 0, chan);
 	return 1;
 }
 
@@ -458,10 +472,11 @@ static int das08_counter_write(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
-	struct das08_private_struct *devpriv = dev->private;
+	const struct das08_board_struct *thisboard = comedi_board(dev);
+	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
 	int chan = insn->chanspec;
 
-	i8254_write(devpriv->i8254_iobase, 0, chan, data[0]);
+	i8254_write(i8254_iobase, 0, chan, data[0]);
 	return 1;
 }
 
@@ -469,18 +484,16 @@ static int das08_counter_config(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-	struct das08_private_struct *devpriv = dev->private;
+	const struct das08_board_struct *thisboard = comedi_board(dev);
+	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
 	int chan = insn->chanspec;
 
-	if (insn->n != 2)
-		return -EINVAL;
-
 	switch (data[0]) {
 	case INSN_CONFIG_SET_COUNTER_MODE:
-		i8254_set_mode(devpriv->i8254_iobase, 0, chan, data[1]);
+		i8254_set_mode(i8254_iobase, 0, chan, data[1]);
 		break;
 	case INSN_CONFIG_8254_READ_STATUS:
-		data[1] = i8254_status(devpriv->i8254_iobase, 0, chan);
+		data[1] = i8254_status(i8254_iobase, 0, chan);
 		break;
 	default:
 		return -EINVAL;
@@ -491,18 +504,14 @@ static int das08_counter_config(struct comedi_device *dev,
 
 #if DO_COMEDI_DRIVER_REGISTER
 static const struct das08_board_struct das08_boards[] = {
-#if IS_ENABLED(CONFIG_COMEDI_DAS08_ISA)
+#if DO_ISA
 	{
 		.name = "isa-das08",	/*  cio-das08.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pg_none,
 		.ai_encoding = das08_encode12,
-		.ao = NULL,
-		.ao_nbits = 12,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
 		.i8255_offset = 8,
 		.i8254_offset = 4,
@@ -511,13 +520,10 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08-pgm",	/*  cio-das08pgx.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pgm,
 		.ai_encoding = das08_encode12,
-		.ao = NULL,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
 		.i8255_offset = 0,
 		.i8254_offset = 0x04,
@@ -526,44 +532,33 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08-pgh",	/*  cio-das08pgx.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pgh,
 		.ai_encoding = das08_encode12,
-		.ao = NULL,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
-		.i8255_offset = 0,
 		.i8254_offset = 0x04,
 		.iosize = 16,		/*  unchecked */
 	},
 	{
 		.name = "das08-pgl",	/*  cio-das08pgx.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pgl,
 		.ai_encoding = das08_encode12,
-		.ao = NULL,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
-		.i8255_offset = 0,
 		.i8254_offset = 0x04,
 		.iosize = 16,		/*  unchecked */
 	},
 	{
 		.name = "das08-aoh",	/*  cio-das08_aox.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pgh,
 		.ai_encoding = das08_encode12,
-		.ao = das08ao_ao_winsn,	/*  8 */
 		.ao_nbits = 12,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
 		.i8255_offset = 0x0c,
 		.i8254_offset = 0x04,
@@ -572,14 +567,11 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08-aol",	/*  cio-das08_aox.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pgl,
 		.ai_encoding = das08_encode12,
-		.ao = das08ao_ao_winsn,	/*  8 */
 		.ao_nbits = 12,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
 		.i8255_offset = 0x0c,
 		.i8254_offset = 0x04,
@@ -588,14 +580,11 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08-aom",	/*  cio-das08_aox.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pgm,
 		.ai_encoding = das08_encode12,
-		.ao = das08ao_ao_winsn,	/*  8 */
 		.ao_nbits = 12,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
 		.i8255_offset = 0x0c,
 		.i8254_offset = 0x04,
@@ -604,152 +593,68 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08/jr-ao",	/*  cio-das08-jr-ao.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
+		.is_jr = true,
 		.ai_nbits = 12,
 		.ai_pg = das08_pg_none,
 		.ai_encoding = das08_encode12,
-		.ao = das08jr_ao_winsn,
 		.ao_nbits = 12,
-		.di = das08jr_di_rbits,
-		.do_ = das08jr_do_wbits,
+		.di_nchan = 8,
 		.do_nchan = 8,
-		.i8255_offset = 0,
-		.i8254_offset = 0,
 		.iosize = 16,		/*  unchecked */
 	},
 	{
 		.name = "das08jr-16-ao",	/*  cio-das08jr-16-ao.pdf */
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
+		.is_jr = true,
 		.ai_nbits = 16,
 		.ai_pg = das08_pg_none,
-		.ai_encoding = das08_encode12,
-		.ao = das08jr_ao_winsn,
+		.ai_encoding = das08_encode16,
 		.ao_nbits = 16,
-		.di = das08jr_di_rbits,
-		.do_ = das08jr_do_wbits,
+		.di_nchan = 8,
 		.do_nchan = 8,
-		.i8255_offset = 0,
 		.i8254_offset = 0x04,
 		.iosize = 16,		/*  unchecked */
 	},
 	{
 		.name = "pc104-das08",
-		.bustype = pc104,
-		.ai = das08_ai_rinsn,
+		.bustype = isa,
 		.ai_nbits = 12,
 		.ai_pg = das08_pg_none,
 		.ai_encoding = das08_encode12,
-		.ao = NULL,
-		.ao_nbits = 0,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
-		.i8255_offset = 0,
 		.i8254_offset = 4,
 		.iosize = 16,		/*  unchecked */
 	},
-#if 0
-	{
-		.name = "das08/f",
-	},
-	{
-		.name = "das08jr",
-	},
-#endif
 	{
 		.name = "das08jr/16",
 		.bustype = isa,
-		.ai = das08_ai_rinsn,
+		.is_jr = true,
 		.ai_nbits = 16,
 		.ai_pg = das08_pg_none,
 		.ai_encoding = das08_encode16,
-		.ao = NULL,
-		.ao_nbits = 0,
-		.di = das08jr_di_rbits,
-		.do_ = das08jr_do_wbits,
+		.di_nchan = 8,
 		.do_nchan = 8,
-		.i8255_offset = 0,
-		.i8254_offset = 0,
 		.iosize = 16,		/*  unchecked */
 	},
-#if 0
-	{
-		.name = "das48-pga",	/*  cio-das48-pga.pdf */
-	},
-	{
-		.name = "das08-pga-g2",	/*  a KM board */
-	},
-#endif
-#endif /* IS_ENABLED(CONFIG_COMEDI_DAS08_ISA) */
-#if IS_ENABLED(CONFIG_COMEDI_DAS08_PCI)
+#endif /* DO_ISA */
+#if DO_PCI
 	{
 		.name = "pci-das08",	/*  pci-das08 */
 		.id = PCI_DEVICE_ID_PCIDAS08,
 		.bustype = pci,
-		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_bipolar5,
 		.ai_encoding = das08_encode12,
-		.ao = NULL,
-		.ao_nbits = 0,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
+		.di_nchan = 3,
 		.do_nchan = 4,
-		.i8255_offset = 0,
 		.i8254_offset = 4,
 		.iosize = 8,
 	},
-	{ /* wildcard entry matches any supported PCI device */
-		.name = DRV_NAME,
-		.id = PCI_ANY_ID,
-		.bustype = pci,
-	},
-#endif /* IS_ENABLED(CONFIG_COMEDI_DAS08_PCI) */
+#endif /* DO_PCI */
 };
 #endif /* DO_COMEDI_DRIVER_REGISTER */
 
-#if IS_ENABLED(CONFIG_COMEDI_DAS08_CS)
-struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS] = {
-	{
-		.name = "pcm-das08",
-		.id = 0x0,		/*  XXX */
-		.bustype = pcmcia,
-		.ai = das08_ai_rinsn,
-		.ai_nbits = 12,
-		.ai_pg = das08_bipolar5,
-		.ai_encoding = das08_pcm_encode12,
-		.ao = NULL,
-		.ao_nbits = 0,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
-		.do_nchan = 3,
-		.i8255_offset = 0,
-		.i8254_offset = 0,
-		.iosize = 16,
-	},
-	/*  duplicate so driver name can be used also */
-	{
-		.name = "das08_cs",
-		.id = 0x0,		/*  XXX */
-		.bustype = pcmcia,
-		.ai = das08_ai_rinsn,
-		.ai_nbits = 12,
-		.ai_pg = das08_bipolar5,
-		.ai_encoding = das08_pcm_encode12,
-		.ao = NULL,
-		.ao_nbits = 0,
-		.di = das08_di_rbits,
-		.do_ = das08_do_wbits,
-		.do_nchan = 3,
-		.i8255_offset = 0,
-		.i8254_offset = 0,
-		.iosize = 16,
-	},
-};
-EXPORT_SYMBOL_GPL(das08_cs_boards);
-#endif
-
 int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 {
 	const struct das08_board_struct *thisboard = comedi_board(dev);
@@ -765,9 +670,9 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* ai */
-	if (thisboard->ai) {
+	if (thisboard->ai_nbits) {
 		s->type = COMEDI_SUBD_AI;
 		/* XXX some boards actually have differential
 		 * inputs instead of single ended.
@@ -778,53 +683,56 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 		s->n_chan = 8;
 		s->maxdata = (1 << thisboard->ai_nbits) - 1;
 		s->range_table = das08_ai_lranges[thisboard->ai_pg];
-		s->insn_read = thisboard->ai;
+		s->insn_read = das08_ai_rinsn;
 		devpriv->pg_gainlist = das08_gainlists[thisboard->ai_pg];
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* ao */
-	if (thisboard->ao) {
+	if (thisboard->ao_nbits) {
 		s->type = COMEDI_SUBD_AO;
-/* XXX lacks read-back insn */
 		s->subdev_flags = SDF_WRITABLE;
 		s->n_chan = 2;
 		s->maxdata = (1 << thisboard->ao_nbits) - 1;
 		s->range_table = &range_bipolar5;
-		s->insn_write = thisboard->ao;
+		s->insn_write = das08_ao_winsn;
+		s->insn_read = das08_ao_rinsn;
+		das08_ao_initialize(dev, s);
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* di */
-	if (thisboard->di) {
+	if (thisboard->di_nchan) {
 		s->type = COMEDI_SUBD_DI;
 		s->subdev_flags = SDF_READABLE;
-		s->n_chan = (thisboard->di == das08_di_rbits) ? 3 : 8;
+		s->n_chan = thisboard->di_nchan;
 		s->maxdata = 1;
 		s->range_table = &range_digital;
-		s->insn_bits = thisboard->di;
+		s->insn_bits =
+			thisboard->is_jr ? das08jr_di_rbits : das08_di_rbits;
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* do */
-	if (thisboard->do_) {
+	if (thisboard->do_nchan) {
 		s->type = COMEDI_SUBD_DO;
 		s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 		s->n_chan = thisboard->do_nchan;
 		s->maxdata = 1;
 		s->range_table = &range_digital;
-		s->insn_bits = thisboard->do_;
+		s->insn_bits =
+			thisboard->is_jr ? das08jr_do_wbits : das08_do_wbits;
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	/* 8255 */
 	if (thisboard->i8255_offset != 0) {
 		subdev_8255_init(dev, s, NULL, (unsigned long)(dev->iobase +
@@ -834,7 +742,7 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 5;
+	s = &dev->subdevices[5];
 	/* 8254 */
 	if (thisboard->i8254_offset != 0) {
 		s->type = COMEDI_SUBD_COUNTER;
@@ -844,8 +752,6 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 		s->insn_read = das08_counter_read;
 		s->insn_write = das08_counter_write;
 		s->insn_config = das08_counter_config;
-
-		devpriv->i8254_iobase = iobase + thisboard->i8254_offset;
 		i8254_initialize(dev);
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
@@ -855,50 +761,13 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 }
 EXPORT_SYMBOL_GPL(das08_common_attach);
 
-static int das08_pci_attach_common(struct comedi_device *dev,
-				   struct pci_dev *pdev)
-{
-	unsigned long iobase;
-	unsigned long pci_iobase;
-	struct das08_private_struct *devpriv = dev->private;
-
-	if (!IS_ENABLED(CONFIG_COMEDI_DAS08_PCI))
-		return -EINVAL;
-
-	devpriv->pdev = pdev;
-	/*  enable PCI device and reserve I/O spaces */
-	if (comedi_pci_enable(pdev, dev->driver->driver_name)) {
-		dev_err(dev->class_dev,
-			"Error enabling PCI device and requesting regions\n");
-		return -EIO;
-	}
-	/*  read base addresses */
-	pci_iobase = pci_resource_start(pdev, 1);
-	iobase = pci_resource_start(pdev, 2);
-	dev_info(dev->class_dev, "pcibase 0x%lx  iobase 0x%lx\n",
-		 pci_iobase, iobase);
-	devpriv->pci_iobase = pci_iobase;
-#if 0
-	/* We could enable pci-das08's interrupt here to make it possible
-	* to do timed input in this driver, but there is little point since
-	* conversions would have to be started by the interrupt handler
-	* so you might as well use comedi_rt_timer to emulate commands
-	*/
-	/* set source of interrupt trigger to counter2 output */
-	outb(CNTRL_INTR | CNTRL_DIR, pci_iobase + CNTRL);
-	/* Enable local interrupt 1 and pci interrupt */
-	outw(INTR1_ENABLE | PCI_INTR_ENABLE, pci_iobase + INTCSR);
-#endif
-	return das08_common_attach(dev, iobase);
-}
-
 static const struct das08_board_struct *
 das08_find_pci_board(struct pci_dev *pdev)
 {
 #if DO_COMEDI_DRIVER_REGISTER
 	unsigned int i;
 	for (i = 0; i < ARRAY_SIZE(das08_boards); i++)
-		if (das08_boards[i].bustype == pci &&
+		if (is_pci_board(&das08_boards[i]) &&
 		    pdev->device == das08_boards[i].id)
 			return &das08_boards[i];
 #endif
@@ -909,9 +778,10 @@ das08_find_pci_board(struct pci_dev *pdev)
 static int __devinit __maybe_unused
 das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev)
 {
+	unsigned long iobase;
 	int ret;
 
-	if (!IS_ENABLED(CONFIG_COMEDI_DAS08_PCI))
+	if (!DO_PCI)
 		return -EINVAL;
 	ret = alloc_private(dev, sizeof(struct das08_private_struct));
 	if (ret < 0)
@@ -922,58 +792,16 @@ das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev)
 		dev_err(dev->class_dev, "BUG! cannot determine board type!\n");
 		return -EINVAL;
 	}
-	return das08_pci_attach_common(dev, pdev);
-}
-
-static struct pci_dev *das08_find_pci(struct comedi_device *dev,
-				      int bus, int slot)
-{
-	const struct das08_board_struct *thisboard = comedi_board(dev);
-	struct pci_dev *pdev;
-	unsigned int matchid;
-
-	if (bus || slot)
-		dev_dbg(dev->class_dev, "Looking for %s at PCI %02X:%02X\n",
-			thisboard->name, bus, slot);
-	else
-		dev_dbg(dev->class_dev, "Looking for %s on PCI buses\n",
-			thisboard->name);
-
-	matchid = thisboard->id;
-	pdev = NULL;
-	for_each_pci_dev(pdev) {
-		if ((bus || slot) &&
-		    (bus != pdev->bus->number || slot != PCI_SLOT(pdev->devfn)))
-			continue;
-		if (pdev->vendor != PCI_VENDOR_ID_COMPUTERBOARDS)
-			continue;
-		if (matchid == PCI_ANY_ID) {
-			/* wildcard board matches any supported PCI board */
-			const struct das08_board_struct *foundboard;
-			foundboard = das08_find_pci_board(pdev);
-			if (foundboard == NULL)
-				continue;
-			/* replace wildcard board_ptr */
-			dev->board_ptr = thisboard = foundboard;
-		} else {
-			/* match specific PCI board */
-			if (pdev->device != matchid)
-				continue;
-		}
-		/* found a match */
-		dev_info(dev->class_dev, "Found %s at PCI %s\n",
-			 thisboard->name, pci_name(pdev));
-		return pdev;
-	}
-	/* no match found */
-	if (bus || slot)
+	comedi_set_hw_dev(dev, &pdev->dev);
+	/*  enable PCI device and reserve I/O spaces */
+	if (comedi_pci_enable(pdev, dev->driver->driver_name)) {
 		dev_err(dev->class_dev,
-			"No %s cards found at PCI %02X:%02X\n",
-			thisboard->name, bus, slot);
-	else
-		dev_err(dev->class_dev, "No %s cards found on PCI buses\n",
-			thisboard->name);
-	return NULL;
+			"Error enabling PCI device and requesting regions\n");
+		return -EIO;
+	}
+	/*  read base addresses */
+	iobase = pci_resource_start(pdev, 2);
+	return das08_common_attach(dev, iobase);
 }
 
 static int __maybe_unused
@@ -990,14 +818,12 @@ das08_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	devpriv = dev->private;
 
 	dev_info(dev->class_dev, "attach\n");
-	if (IS_ENABLED(CONFIG_COMEDI_DAS08_PCI) && thisboard->bustype == pci) {
-		struct pci_dev *pdev;
-		pdev = das08_find_pci(dev, it->options[0], it->options[1]);
-		if (pdev == NULL)
-			return -EIO;
-		return das08_pci_attach_common(dev, pdev);
-	} else if (IS_ENABLED(CONFIG_COMEDI_DAS08_ISA) &&
-		   (thisboard->bustype == isa || thisboard->bustype == pc104)) {
+	if (is_pci_board(thisboard)) {
+		dev_err(dev->class_dev,
+			"Manual configuration of PCI board '%s' is not supported\n",
+			thisboard->name);
+		return -EIO;
+	} else if (is_isa_board(thisboard)) {
 		iobase = it->options[0];
 		dev_info(dev->class_dev, "iobase 0x%lx\n", iobase);
 		if (!request_region(iobase, thisboard->iosize, DRV_NAME)) {
@@ -1012,26 +838,23 @@ das08_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 void das08_common_detach(struct comedi_device *dev)
 {
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 4);
+		subdev_8255_cleanup(dev, &dev->subdevices[4]);
 }
 EXPORT_SYMBOL_GPL(das08_common_detach);
 
 static void __maybe_unused das08_detach(struct comedi_device *dev)
 {
 	const struct das08_board_struct *thisboard = comedi_board(dev);
-	struct das08_private_struct *devpriv = dev->private;
 
 	das08_common_detach(dev);
-	if (IS_ENABLED(CONFIG_COMEDI_DAS08_ISA) &&
-	    (thisboard->bustype == isa || thisboard->bustype == pc104)) {
+	if (is_isa_board(thisboard)) {
 		if (dev->iobase)
 			release_region(dev->iobase, thisboard->iosize);
-	} else if (IS_ENABLED(CONFIG_COMEDI_DAS08_PCI) &&
-		   thisboard->bustype == pci) {
-		if (devpriv && devpriv->pdev) {
-			if (devpriv->pci_iobase)
-				comedi_pci_disable(devpriv->pdev);
-			pci_dev_put(devpriv->pdev);
+	} else if (is_pci_board(thisboard)) {
+		struct pci_dev *pdev = comedi_to_pci_dev(dev);
+		if (pdev) {
+			if (dev->iobase)
+				comedi_pci_disable(pdev);
 		}
 	}
 }
@@ -1049,7 +872,7 @@ static struct comedi_driver das08_driver = {
 };
 #endif
 
-#if IS_ENABLED(CONFIG_COMEDI_DAS08_PCI)
+#if DO_PCI
 static DEFINE_PCI_DEVICE_TABLE(das08_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, PCI_DEVICE_ID_PCIDAS08) },
 	{0}
@@ -1074,10 +897,10 @@ static struct pci_driver das08_pci_driver = {
 	.probe = &das08_pci_probe,
 	.remove = __devexit_p(&das08_pci_remove)
 };
-#endif /* CONFIG_COMEDI_DAS08_PCI */
+#endif /* DO_PCI */
 
 #if DO_COMEDI_DRIVER_REGISTER
-#if IS_ENABLED(CONFIG_COMEDI_DAS08_PCI)
+#if DO_PCI
 module_comedi_pci_driver(das08_driver, das08_pci_driver);
 #else
 module_comedi_driver(das08_driver);
diff --git a/drivers/staging/comedi/drivers/das08.h b/drivers/staging/comedi/drivers/das08.h
index 27b6d4ec903..0314baebae3 100644
--- a/drivers/staging/comedi/drivers/das08.h
+++ b/drivers/staging/comedi/drivers/das08.h
@@ -24,7 +24,7 @@
 #ifndef _DAS08_H
 #define _DAS08_H
 
-enum das08_bustype { isa, pci, pcmcia, pc104 };
+enum das08_bustype { isa, pci, pcmcia };
 /* different ways ai data is encoded in first two registers */
 enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
 enum das08_lrange { das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl,
@@ -35,14 +35,12 @@ struct das08_board_struct {
 	const char *name;
 	unsigned int id;	/*  id for pci/pcmcia boards */
 	enum das08_bustype bustype;
-	void *ai;
+	bool is_jr;		/* true for 'JR' boards */
 	unsigned int ai_nbits;
 	enum das08_lrange ai_pg;
 	enum das08_ai_encoding ai_encoding;
-	void *ao;
 	unsigned int ao_nbits;
-	void *di;
-	void *do_;
+	unsigned int di_nchan;
 	unsigned int do_nchan;
 	unsigned int i8255_offset;
 	unsigned int i8254_offset;
@@ -53,14 +51,9 @@ struct das08_private_struct {
 	unsigned int do_mux_bits;	/*  bits for do/mux register on boards without separate do register */
 	unsigned int do_bits;	/*  bits for do register on boards with register dedicated to digital out only */
 	const unsigned int *pg_gainlist;
-	struct pci_dev *pdev;	/*  struct for pci-das08 */
-	unsigned int pci_iobase;	/*  additional base address for pci-das08 */
-	unsigned int i8254_iobase;
+	unsigned int ao_readback[2];	/* assume 2 AO channels */
 };
 
-#define NUM_DAS08_CS_BOARDS 2
-extern struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS];
-
 int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
 void das08_common_detach(struct comedi_device *dev);
 
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
index f5700de7b6c..e4c91e67537 100644
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ b/drivers/staging/comedi/drivers/das08_cs.c
@@ -58,6 +58,32 @@ Command support does not exist, but could be added for this board.
 #include <pcmcia/cistpl.h>
 #include <pcmcia/ds.h>
 
+static const struct das08_board_struct das08_cs_boards[] = {
+	{
+		.name = "pcm-das08",
+		.id = 0x0,		/*  XXX */
+		.bustype = pcmcia,
+		.ai_nbits = 12,
+		.ai_pg = das08_bipolar5,
+		.ai_encoding = das08_pcm_encode12,
+		.di_nchan = 3,
+		.do_nchan = 3,
+		.iosize = 16,
+	},
+	/*  duplicate so driver name can be used also */
+	{
+		.name = "das08_cs",
+		.id = 0x0,		/*  XXX */
+		.bustype = pcmcia,
+		.ai_nbits = 12,
+		.ai_pg = das08_bipolar5,
+		.ai_encoding = das08_pcm_encode12,
+		.di_nchan = 3,
+		.do_nchan = 3,
+		.iosize = 16,
+	},
+};
+
 static struct pcmcia_device *cur_dev;
 
 static int das08_cs_attach(struct comedi_device *dev,
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 895cc7783c9..fcb8a32adb2 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -402,62 +402,42 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 	int gain, start_chan, i;
 	int mask;
 
-	/* make sure triggers are valid */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
+
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
 
-	tmp = cmd->scan_begin_src;
 	mask = TRIG_FOLLOW;
 	/*  if board supports burst mode */
 	if (board->size > 0x400)
 		mask |= TRIG_TIMER | TRIG_EXT;
-	cmd->scan_begin_src &= mask;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, mask);
 
 	tmp = cmd->convert_src;
 	mask = TRIG_TIMER | TRIG_EXT;
 	/*  if board supports burst mode */
 	if (board->size > 0x400)
 		mask |= TRIG_NOW;
-	cmd->convert_src &= mask;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->convert_src, mask);
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/**
-	 * step 2: make sure trigger sources are unique and
-	 * mutually compatible
-	 */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	/*  make sure scan_begin_src and convert_src dont conflict */
 	if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW)
-		err++;
+		err |= -EINVAL;
 	if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -558,7 +538,7 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 
 /* utility function that suggests a dma transfer size in bytes */
 static unsigned int das16_suggest_transfer_size(struct comedi_device *dev,
-						struct comedi_cmd cmd)
+						const struct comedi_cmd *cmd)
 {
 	unsigned int size;
 	unsigned int freq;
@@ -571,16 +551,16 @@ static unsigned int das16_suggest_transfer_size(struct comedi_device *dev,
 
 	/* otherwise, we are relying on dma terminal count interrupt,
 	 * so pick a reasonable size */
-	if (cmd.convert_src == TRIG_TIMER)
-		freq = 1000000000 / cmd.convert_arg;
-	else if (cmd.scan_begin_src == TRIG_TIMER)
-		freq = (1000000000 / cmd.scan_begin_arg) * cmd.chanlist_len;
+	if (cmd->convert_src == TRIG_TIMER)
+		freq = 1000000000 / cmd->convert_arg;
+	else if (cmd->scan_begin_src == TRIG_TIMER)
+		freq = (1000000000 / cmd->scan_begin_arg) * cmd->chanlist_len;
 	/*  return some default value */
 	else
 		freq = 0xffffffff;
 
-	if (cmd.flags & TRIG_WAKE_EOS) {
-		size = sample_size * cmd.chanlist_len;
+	if (cmd->flags & TRIG_WAKE_EOS) {
+		size = sample_size * cmd->chanlist_len;
 	} else {
 		/*  make buffer fill in no more than 1/3 second */
 		size = (freq / 3) * sample_size;
@@ -592,7 +572,7 @@ static unsigned int das16_suggest_transfer_size(struct comedi_device *dev,
 	else if (size < sample_size)
 		size = sample_size;
 
-	if (cmd.stop_src == TRIG_COUNT && size > devpriv->adc_byte_count)
+	if (cmd->stop_src == TRIG_COUNT && size > devpriv->adc_byte_count)
 		size = devpriv->adc_byte_count;
 
 	return size;
@@ -685,7 +665,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
 	set_dma_addr(devpriv->dma_chan,
 		     devpriv->dma_buffer_addr[devpriv->current_buffer]);
 	/*  set appropriate size of transfer */
-	devpriv->dma_transfer_size = das16_suggest_transfer_size(dev, *cmd);
+	devpriv->dma_transfer_size = das16_suggest_transfer_size(dev, cmd);
 	set_dma_count(devpriv->dma_chan, devpriv->dma_transfer_size);
 	enable_dma(devpriv->dma_chan);
 	release_dma_lock(flags);
@@ -1268,7 +1248,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* ai */
 	if (board->ai) {
@@ -1300,7 +1280,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* ao */
 	if (board->ao) {
 		s->type = COMEDI_SUBD_AO;
@@ -1318,7 +1298,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* di */
 	if (board->di) {
 		s->type = COMEDI_SUBD_DI;
@@ -1331,7 +1311,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* do */
 	if (board->do_) {
 		s->type = COMEDI_SUBD_DO;
@@ -1346,7 +1326,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	/* 8255 */
 	if (board->i8255_offset != 0) {
 		subdev_8255_init(dev, s, NULL, (dev->iobase +
@@ -1376,7 +1356,7 @@ static void das16_detach(struct comedi_device *dev)
 
 	das16_reset(dev);
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 4);
+		subdev_8255_cleanup(dev, &dev->subdevices[4]);
 	if (devpriv) {
 		int i;
 		for (i = 0; i < 2; i++) {
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index 20092634786..3f87d7598e5 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -170,42 +170,24 @@ static int das16m1_cmd_test(struct comedi_device *dev,
 	const struct das16m1_board *board = comedi_board(dev);
 	unsigned int err = 0, tmp, i;
 
-	/* make sure triggers are valid */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -650,7 +632,7 @@ static int das16m1_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* ai */
 	s->type = COMEDI_SUBD_AI;
@@ -666,7 +648,7 @@ static int das16m1_attach(struct comedi_device *dev,
 	s->cancel = das16m1_cancel;
 	s->poll = das16m1_poll;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* di */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -675,7 +657,7 @@ static int das16m1_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = das16m1_di_rbits;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* do */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
@@ -684,7 +666,7 @@ static int das16m1_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = das16m1_do_wbits;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* 8255 */
 	subdev_8255_init(dev, s, NULL, dev->iobase + DAS16M1_82C55);
 
@@ -707,7 +689,7 @@ static int das16m1_attach(struct comedi_device *dev,
 static void das16m1_detach(struct comedi_device *dev)
 {
 	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 3);
+		subdev_8255_cleanup(dev, &dev->subdevices[3]);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (dev->iobase) {
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 25e7e56a376..2555f3297d7 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -656,7 +656,7 @@ static int das1800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 /* the guts of the interrupt handler, that is shared with das1800_ai_poll */
 static void das1800_ai_handler(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + 0;	/* analog input subdevice */
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
 	unsigned int status = inb(dev->iobase + DAS1800_STATUS);
@@ -784,59 +784,35 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 				 struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
 	unsigned int tmp_arg;
 	int i;
 	int unipolar;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_EXT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
-	/*  uniqueness check */
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT &&
-	    cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT)
-		err++;
-	/* compatibility check */
 	if (cmd->scan_begin_src != TRIG_FOLLOW &&
 	    cmd->convert_src != TRIG_TIMER)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -958,14 +934,14 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 }
 
 /* returns appropriate bits for control register a, depending on command */
-static int control_a_bits(struct comedi_cmd cmd)
+static int control_a_bits(const struct comedi_cmd *cmd)
 {
 	int control_a;
 
 	control_a = FFEN;	/* enable fifo */
-	if (cmd.stop_src == TRIG_EXT)
+	if (cmd->stop_src == TRIG_EXT)
 		control_a |= ATEN;
-	switch (cmd.start_src) {
+	switch (cmd->start_src) {
 	case TRIG_EXT:
 		control_a |= TGEN | CGSL;
 		break;
@@ -980,7 +956,7 @@ static int control_a_bits(struct comedi_cmd cmd)
 }
 
 /* returns appropriate bits for control register c, depending on command */
-static int control_c_bits(struct comedi_cmd cmd)
+static int control_c_bits(const struct comedi_cmd *cmd)
 {
 	int control_c;
 	int aref;
@@ -988,18 +964,18 @@ static int control_c_bits(struct comedi_cmd cmd)
 	/* set clock source to internal or external, select analog reference,
 	 * select unipolar / bipolar
 	 */
-	aref = CR_AREF(cmd.chanlist[0]);
+	aref = CR_AREF(cmd->chanlist[0]);
 	control_c = UQEN;	/* enable upper qram addresses */
 	if (aref != AREF_DIFF)
 		control_c |= SD;
 	if (aref == AREF_COMMON)
 		control_c |= CMEN;
 	/* if a unipolar range was selected */
-	if (CR_RANGE(cmd.chanlist[0]) & UNIPOLAR)
+	if (CR_RANGE(cmd->chanlist[0]) & UNIPOLAR)
 		control_c |= UB;
-	switch (cmd.scan_begin_src) {
+	switch (cmd->scan_begin_src) {
 	case TRIG_FOLLOW:	/*  not in burst mode */
-		switch (cmd.convert_src) {
+		switch (cmd->convert_src) {
 		case TRIG_TIMER:
 			/* trig on cascaded counters */
 			control_c |= IPCLK;
@@ -1047,29 +1023,33 @@ static int das1800_set_frequency(struct comedi_device *dev)
 }
 
 /* sets up counters */
-static int setup_counters(struct comedi_device *dev, struct comedi_cmd cmd)
+static int setup_counters(struct comedi_device *dev,
+			  const struct comedi_cmd *cmd)
 {
+	unsigned int period;
+
 	/*  setup cascaded counters for conversion/scan frequency */
-	switch (cmd.scan_begin_src) {
+	switch (cmd->scan_begin_src) {
 	case TRIG_FOLLOW:	/*  not in burst mode */
-		if (cmd.convert_src == TRIG_TIMER) {
+		if (cmd->convert_src == TRIG_TIMER) {
 			/* set conversion frequency */
+			period = cmd->convert_arg;
 			i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-						       &(devpriv->divisor1),
-						       &(devpriv->divisor2),
-						       &(cmd.convert_arg),
-						       cmd.
-						       flags & TRIG_ROUND_MASK);
+						       &devpriv->divisor1,
+						       &devpriv->divisor2,
+						       &period,
+						       cmd->flags &
+							TRIG_ROUND_MASK);
 			if (das1800_set_frequency(dev) < 0)
 				return -1;
 		}
 		break;
 	case TRIG_TIMER:	/*  in burst mode */
 		/* set scan frequency */
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1),
-					       &(devpriv->divisor2),
-					       &(cmd.scan_begin_arg),
-					       cmd.flags & TRIG_ROUND_MASK);
+		period = cmd->scan_begin_arg;
+		i8253_cascade_ns_to_timer_2div(TIMER_BASE, &devpriv->divisor1,
+					       &devpriv->divisor2, &period,
+					       cmd->flags & TRIG_ROUND_MASK);
 		if (das1800_set_frequency(dev) < 0)
 			return -1;
 		break;
@@ -1078,7 +1058,7 @@ static int setup_counters(struct comedi_device *dev, struct comedi_cmd cmd)
 	}
 
 	/*  setup counter 0 for 'about triggering' */
-	if (cmd.stop_src == TRIG_EXT) {
+	if (cmd->stop_src == TRIG_EXT) {
 		/*  load counter 0 in mode 0 */
 		i8254_load(dev->iobase + DAS1800_COUNTER, 0, 0, 1, 0);
 	}
@@ -1087,7 +1067,7 @@ static int setup_counters(struct comedi_device *dev, struct comedi_cmd cmd)
 }
 
 /* utility function that suggests a dma transfer size based on the conversion period 'ns' */
-static unsigned int suggest_transfer_size(struct comedi_cmd *cmd)
+static unsigned int suggest_transfer_size(const struct comedi_cmd *cmd)
 {
 	unsigned int size = DMA_BUF_SIZE;
 	static const int sample_size = 2;	/*  size in bytes of one sample from board */
@@ -1125,7 +1105,7 @@ static unsigned int suggest_transfer_size(struct comedi_cmd *cmd)
 }
 
 /* sets up dma */
-static void setup_dma(struct comedi_device *dev, struct comedi_cmd cmd)
+static void setup_dma(struct comedi_device *dev, const struct comedi_cmd *cmd)
 {
 	unsigned long lock_flags;
 	const int dual_dma = devpriv->irq_dma_bits & DMA_DUAL;
@@ -1134,7 +1114,7 @@ static void setup_dma(struct comedi_device *dev, struct comedi_cmd cmd)
 		return;
 
 	/* determine a reasonable dma transfer size */
-	devpriv->dma_transfer_size = suggest_transfer_size(&cmd);
+	devpriv->dma_transfer_size = suggest_transfer_size(cmd);
 	lock_flags = claim_dma_lock();
 	disable_dma(devpriv->dma0);
 	/* clear flip-flop to make sure 2-byte registers for
@@ -1163,14 +1143,15 @@ static void setup_dma(struct comedi_device *dev, struct comedi_cmd cmd)
 }
 
 /* programs channel/gain list into card */
-static void program_chanlist(struct comedi_device *dev, struct comedi_cmd cmd)
+static void program_chanlist(struct comedi_device *dev,
+			     const struct comedi_cmd *cmd)
 {
 	int i, n, chan_range;
 	unsigned long irq_flags;
 	const int range_mask = 0x3;	/* masks unipolar/bipolar bit off range */
 	const int range_bitshift = 8;
 
-	n = cmd.chanlist_len;
+	n = cmd->chanlist_len;
 	/*  spinlock protects indirect addressing */
 	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
@@ -1178,9 +1159,9 @@ static void program_chanlist(struct comedi_device *dev, struct comedi_cmd cmd)
 	/* make channel / gain list */
 	for (i = 0; i < n; i++) {
 		chan_range =
-		    CR_CHAN(cmd.
-			    chanlist[i]) | ((CR_RANGE(cmd.chanlist[i]) &
-					     range_mask) << range_bitshift);
+		    CR_CHAN(cmd->chanlist[i]) |
+		    ((CR_RANGE(cmd->chanlist[i]) & range_mask) <<
+		     range_bitshift);
 		outw(chan_range, dev->iobase + DAS1800_QRAM);
 	}
 	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*finish write to QRAM */
@@ -1196,7 +1177,7 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
 	int ret;
 	int control_a, control_c;
 	struct comedi_async *async = s->async;
-	struct comedi_cmd cmd = async->cmd;
+	const struct comedi_cmd *cmd = &async->cmd;
 
 	if (!dev->irq) {
 		comedi_error(dev,
@@ -1206,12 +1187,12 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
 
 	/* disable dma on TRIG_WAKE_EOS, or TRIG_RT
 	 * (because dma in handler is unsafe at hard real-time priority) */
-	if (cmd.flags & (TRIG_WAKE_EOS | TRIG_RT))
+	if (cmd->flags & (TRIG_WAKE_EOS | TRIG_RT))
 		devpriv->irq_dma_bits &= ~DMA_ENABLED;
 	else
 		devpriv->irq_dma_bits |= devpriv->dma_bits;
 	/*  interrupt on end of conversion for TRIG_WAKE_EOS */
-	if (cmd.flags & TRIG_WAKE_EOS) {
+	if (cmd->flags & TRIG_WAKE_EOS) {
 		/*  interrupt fifo not empty */
 		devpriv->irq_dma_bits &= ~FIMD;
 	} else {
@@ -1219,8 +1200,8 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
 		devpriv->irq_dma_bits |= FIMD;
 	}
 	/*  determine how many conversions we need */
-	if (cmd.stop_src == TRIG_COUNT)
-		devpriv->count = cmd.stop_arg * cmd.chanlist_len;
+	if (cmd->stop_src == TRIG_COUNT)
+		devpriv->count = cmd->stop_arg * cmd->chanlist_len;
 
 	das1800_cancel(dev, s);
 
@@ -1240,9 +1221,9 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
 	/*  set conversion rate and length for burst mode */
 	if (control_c & BMDE) {
 		/*  program conversion period with number of microseconds minus 1 */
-		outb(cmd.convert_arg / 1000 - 1,
+		outb(cmd->convert_arg / 1000 - 1,
 		     dev->iobase + DAS1800_BURST_RATE);
-		outb(cmd.chanlist_len - 1, dev->iobase + DAS1800_BURST_LENGTH);
+		outb(cmd->chanlist_len - 1, dev->iobase + DAS1800_BURST_LENGTH);
 	}
 	outb(devpriv->irq_dma_bits, dev->iobase + DAS1800_CONTROL_B);	/*  enable irq/dma */
 	outb(control_a, dev->iobase + DAS1800_CONTROL_A);	/* enable fifo and triggering */
@@ -1653,7 +1634,7 @@ static int das1800_attach(struct comedi_device *dev,
 		return retval;
 
 	/* analog input subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND | SDF_CMD_READ;
@@ -1670,7 +1651,7 @@ static int das1800_attach(struct comedi_device *dev,
 	s->cancel = das1800_cancel;
 
 	/* analog out */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	if (thisboard->ao_ability == 1) {
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags = SDF_WRITABLE;
@@ -1683,7 +1664,7 @@ static int das1800_attach(struct comedi_device *dev,
 	}
 
 	/* di */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 4;
@@ -1692,7 +1673,7 @@ static int das1800_attach(struct comedi_device *dev,
 	s->insn_bits = das1800_di_rbits;
 
 	/* do */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 	s->n_chan = thisboard->do_n_chan;
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index e3afcfa9efc..e134c46dedf 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -152,7 +152,7 @@ static void das6402_setcounter(struct comedi_device *dev)
 static irqreturn_t intr_handler(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 
 	if (!dev->attached || devpriv->das6402_ignoreirq) {
 		dev_warn(dev->class_dev, "BUG: spurious interrupt\n");
@@ -312,7 +312,7 @@ static int das6402_attach(struct comedi_device *dev,
 		return ret;
 
 	/* ai subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
 	s->n_chan = 8;
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index a0959a5e874..215deac0a39 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -435,7 +435,7 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 	if (fifo_overflow) {
 		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		comedi_error(dev, "DAS800 FIFO overflow");
-		das800_cancel(dev, dev->subdevices + 0);
+		das800_cancel(dev, s);
 		async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
 		comedi_event(dev, s);
 		async->events = 0;
@@ -517,7 +517,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 
 	/* analog input subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
@@ -531,7 +531,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->cancel = das800_cancel;
 
 	/* di */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 3;
@@ -540,7 +540,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_bits = das800_di_rbits;
 
 	/* do */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 	s->n_chan = 4;
@@ -609,44 +609,24 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
 	int gain, startChan;
 	int i;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 7107f590b1f..4d5c33c4750 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -41,6 +41,8 @@ Configuration Options:
 #include "../comedidev.h"
 #include <linux/ioport.h>
 
+#include "comedi_fc.h"
+
 /* Board register addresses */
 
 #define DMM32AT_MEMSIZE 0x10
@@ -258,47 +260,26 @@ static int dmm32at_ai_cmdtest(struct comedi_device *dev,
 	int tmp;
 	int start_chan, gain, i;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER /*| TRIG_EXT */ ;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER /*| TRIG_EXT */ ;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER /*| TRIG_EXT */);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER /*| TRIG_EXT */);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually
-	 * compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -825,7 +806,7 @@ static int dmm32at_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
@@ -841,7 +822,7 @@ static int dmm32at_attach(struct comedi_device *dev,
 	s->do_cmdtest = dmm32at_ai_cmdtest;
 	s->cancel = dmm32at_ai_cancel;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -851,7 +832,7 @@ static int dmm32at_attach(struct comedi_device *dev,
 	s->insn_write = dmm32at_ao_winsn;
 	s->insn_read = dmm32at_ao_rinsn;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* digital i/o subdevice */
 
 	/* get access to the DIO regs */
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index d332269375a..c59a652a119 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -532,7 +532,7 @@ static int dt2801_dio_insn_bits(struct comedi_device *dev,
 {
 	int which = 0;
 
-	if (s == dev->subdevices + 4)
+	if (s == &dev->subdevices[3])
 		which = 1;
 
 	if (data[0]) {
@@ -555,7 +555,7 @@ static int dt2801_dio_insn_config(struct comedi_device *dev,
 {
 	int which = 0;
 
-	if (s == dev->subdevices + 4)
+	if (s == &dev->subdevices[3])
 		which = 1;
 
 	/* configure */
@@ -636,7 +636,7 @@ havetype:
 
 	dev->board_name = boardtype.name;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* ai subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -652,7 +652,7 @@ havetype:
 	s->range_table = ai_range_lkup(boardtype.adrangetype, it->options[3]);
 	s->insn_read = dt2801_ai_insn_read;
 
-	s++;
+	s = &dev->subdevices[1];
 	/* ao subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -664,7 +664,7 @@ havetype:
 	s->insn_read = dt2801_ao_insn_read;
 	s->insn_write = dt2801_ao_insn_write;
 
-	s++;
+	s = &dev->subdevices[2];
 	/* 1st digital subdevice */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -674,7 +674,7 @@ havetype:
 	s->insn_bits = dt2801_dio_insn_bits;
 	s->insn_config = dt2801_dio_insn_config;
 
-	s++;
+	s = &dev->subdevices[3];
 	/* 2nd digital subdevice */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index 290b933c5f9..d3a8c1aec9d 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -510,7 +510,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		break;
 	}
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* initialize the ADC subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -530,7 +530,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		break;
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* ao subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -542,7 +542,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	devpriv->range_type_list[0] = dac_range_types[devpriv->dac_range[0]];
 	devpriv->range_type_list[1] = dac_range_types[devpriv->dac_range[1]];
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* di subdevice */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -551,7 +551,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->maxdata = 1;
 	s->range_table = &range_digital;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* do subdevice */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index 2e39ebe36fb..064a8f215e4 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -45,6 +45,8 @@ addition, the clock does not seem to be very accurate.
 #include <linux/ioport.h>
 #include <linux/delay.h>
 
+#include "comedi_fc.h"
+
 #define DT2814_SIZE 2
 
 #define DT2814_CSR 0
@@ -129,42 +131,22 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are
-	 * unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->stop_src != TRIG_TIMER && cmd->stop_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -247,7 +229,7 @@ static irqreturn_t dt2814_interrupt(int irq, void *d)
 		return IRQ_HANDLED;
 	}
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 
 	hi = inb(dev->iobase + DT2814_DATA);
 	lo = inb(dev->iobase + DT2814_DATA);
@@ -346,7 +328,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret < 0)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
index 45b20bee436..b9692ef64c4 100644
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ b/drivers/staging/comedi/drivers/dt2815.c
@@ -185,7 +185,7 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (alloc_private(dev, sizeof(struct dt2815_private)) < 0)
 		return -ENOMEM;
 
-	s = dev->subdevices;
+	s = &dev->subdevices[0];
 	/* ao subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/dt2817.c b/drivers/staging/comedi/drivers/dt2817.c
index beba0447b3e..502e42e0753 100644
--- a/drivers/staging/comedi/drivers/dt2817.c
+++ b/drivers/staging/comedi/drivers/dt2817.c
@@ -141,7 +141,7 @@ static int dt2817_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 
 	s->n_chan = 32;
 	s->type = COMEDI_SUBD_DIO;
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index 1f0b40e4bdd..78d340716d1 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -312,7 +312,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device *dev)
 	void *ptr;
 	int size;
 	int i;
-	struct comedi_subdevice *s = dev->subdevices + 1;
+	struct comedi_subdevice *s = &dev->subdevices[1];
 
 	outw(devpriv->supcsr | DT2821_CLRDMADNE, dev->iobase + DT2821_SUPCSR);
 
@@ -345,7 +345,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device *dev)
 	int size;
 	int i;
 	int ret;
-	struct comedi_subdevice *s = dev->subdevices;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 
 	outw(devpriv->supcsr | DT2821_CLRDMADNE, dev->iobase + DT2821_SUPCSR);
 
@@ -457,8 +457,8 @@ static irqreturn_t dt282x_interrupt(int irq, void *d)
 		return IRQ_HANDLED;
 	}
 
-	s = dev->subdevices + 0;
-	s_ao = dev->subdevices + 1;
+	s = &dev->subdevices[0];
+	s_ao = &dev->subdevices[1];
 	adcsr = inw(dev->iobase + DT2821_ADCSR);
 	dacsr = inw(dev->iobase + DT2821_DACSR);
 	supcsr = inw(dev->iobase + DT2821_SUPCSR);
@@ -582,47 +582,24 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_FOLLOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique
-	 * and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -862,44 +839,22 @@ static int dt282x_ao_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique
-	 * and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1275,7 +1230,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 
 	dev->read_subdev = s;
 	/* ai subdevice */
@@ -1294,7 +1249,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	    opt_ai_range_lkup(boardtype.ispgl, it->options[opt_ai_range]);
 	devpriv->ad_2scomp = it->options[opt_ai_twos];
 
-	s++;
+	s = &dev->subdevices[1];
 
 	s->n_chan = boardtype.dachan;
 	if (s->n_chan) {
@@ -1320,7 +1275,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s++;
+	s = &dev->subdevices[2];
 	/* dio subsystem */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index a6fe6c9be87..43d05ef9715 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -63,6 +63,8 @@ AO commands are not supported.
 #include "../comedidev.h"
 #include <linux/delay.h>
 
+#include "comedi_fc.h"
+
 #define PCI_VENDOR_ID_DT	0x1116
 
 static const struct comedi_lrange range_dt3000_ai = { 4, {
@@ -330,7 +332,7 @@ static irqreturn_t dt3k_interrupt(int irq, void *d)
 	if (!dev->attached)
 		return IRQ_NONE;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	status = readw(devpriv->io_addr + DPR_Intr_Flag);
 #ifdef DEBUG
 	debug_intr_flags(status);
@@ -408,37 +410,19 @@ static int dt3k_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -804,6 +788,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
+	resource_size_t pci_base;
 	int ret = 0;
 
 	dev_dbg(dev->class_dev, "dt3000:\n");
@@ -820,9 +805,10 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	ret = comedi_pci_enable(pcidev, "dt3000");
 	if (ret < 0)
 		return ret;
+	dev->iobase = 1;	/* the "detach" needs this */
 
-	dev->iobase = pci_resource_start(pcidev, 0);
-	devpriv->io_addr = ioremap(dev->iobase, DT3000_SIZE);
+	pci_base  = pci_resource_start(pcidev, 0);
+	devpriv->io_addr = ioremap(pci_base, DT3000_SIZE);
 	if (!devpriv->io_addr)
 		return -ENOMEM;
 
@@ -840,7 +826,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 
 	/* ai subdevice */
@@ -855,7 +841,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->do_cmdtest = dt3k_ai_cmdtest;
 	s->cancel = dt3k_ai_cancel;
 
-	s++;
+	s = &dev->subdevices[1];
 	/* ao subsystem */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -866,7 +852,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->len_chanlist = 1;
 	s->range_table = &range_bipolar10;
 
-	s++;
+	s = &dev->subdevices[2];
 	/* dio subsystem */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -877,7 +863,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->len_chanlist = 8;
 	s->range_table = &range_digital;
 
-	s++;
+	s = &dev->subdevices[3];
 	/* mem subsystem */
 	s->type = COMEDI_SUBD_MEMORY;
 	s->subdev_flags = SDF_READABLE;
@@ -888,7 +874,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_unknown;
 
 #if 0
-	s++;
+	s = &dev->subdevices[4];
 	/* proc subsystem */
 	s->type = COMEDI_SUBD_PROC;
 #endif
diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index 40821c7303e..bc6f409b7e1 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -1041,7 +1041,7 @@ static int dt9812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 
 	/* digital input subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 0;
@@ -1050,7 +1050,7 @@ static int dt9812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_read = &dt9812_di_rinsn;
 
 	/* digital output subdevice */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITEABLE;
 	s->n_chan = 0;
@@ -1059,7 +1059,7 @@ static int dt9812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = &dt9812_do_winsn;
 
 	/* analog input subdevice */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
 	s->n_chan = 0;
@@ -1068,7 +1068,7 @@ static int dt9812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_read = &dt9812_ai_rinsn;
 
 	/* analog output subdevice */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITEABLE;
 	s->n_chan = 0;
diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c
index 064be9aae3a..6f612be1b0a 100644
--- a/drivers/staging/comedi/drivers/dyna_pci10xx.c
+++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c
@@ -41,7 +41,6 @@
 #include <linux/mutex.h>
 
 #define PCI_VENDOR_ID_DYNALOG		0x10b5
-#define DRV_NAME			"dyna_pci10xx"
 
 #define READ_TIMEOUT 50
 
@@ -54,59 +53,11 @@ static const struct comedi_lrange range_pci1050_ai = { 3, {
 
 static const char range_codes_pci1050_ai[] = { 0x00, 0x10, 0x30 };
 
-static const struct comedi_lrange range_pci1050_ao = { 1, {
-							  UNI_RANGE(10)
-							  }
-};
-
-static const char range_codes_pci1050_ao[] = { 0x00 };
-
-struct boardtype {
-	const char *name;
-	int device_id;
-	int ai_chans;
-	int ai_bits;
-	int ao_chans;
-	int ao_bits;
-	int di_chans;
-	int di_bits;
-	int do_chans;
-	int do_bits;
-	const struct comedi_lrange *range_ai;
-	const char *range_codes_ai;
-	const struct comedi_lrange *range_ao;
-	const char *range_codes_ao;
-};
-
-static const struct boardtype boardtypes[] = {
-	{
-	.name = "dyna_pci1050",
-	.device_id = 0x1050,
-	.ai_chans = 16,
-	.ai_bits = 12,
-	.ao_chans = 16,
-	.ao_bits = 12,
-	.di_chans = 16,
-	.di_bits = 16,
-	.do_chans = 16,
-	.do_bits = 16,
-	.range_ai = &range_pci1050_ai,
-	.range_codes_ai = range_codes_pci1050_ai,
-	.range_ao = &range_pci1050_ao,
-	.range_codes_ao = range_codes_pci1050_ao,
-	},
-	/*  dummy entry corresponding to driver name */
-	{.name = DRV_NAME},
-};
-
 struct dyna_pci10xx_private {
 	struct mutex mutex;
 	unsigned long BADR3;
 };
 
-#define thisboard ((const struct boardtype *)dev->board_ptr)
-#define devpriv ((struct dyna_pci10xx_private *)dev->private)
-
 /******************************************************************************/
 /************************** READ WRITE FUNCTIONS ******************************/
 /******************************************************************************/
@@ -116,13 +67,14 @@ static int dyna_pci10xx_insn_read_ai(struct comedi_device *dev,
 			struct comedi_subdevice *s,
 			struct comedi_insn *insn, unsigned int *data)
 {
+	struct dyna_pci10xx_private *devpriv = dev->private;
 	int n, counter;
 	u16 d = 0;
 	unsigned int chan, range;
 
 	/* get the channel number and range */
 	chan = CR_CHAN(insn->chanspec);
-	range = thisboard->range_codes_ai[CR_RANGE((insn->chanspec))];
+	range = range_codes_pci1050_ai[CR_RANGE((insn->chanspec))];
 
 	mutex_lock(&devpriv->mutex);
 	/* convert n samples */
@@ -159,11 +111,12 @@ static int dyna_pci10xx_insn_write_ao(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
+	struct dyna_pci10xx_private *devpriv = dev->private;
 	int n;
 	unsigned int chan, range;
 
 	chan = CR_CHAN(insn->chanspec);
-	range = thisboard->range_codes_ai[CR_RANGE((insn->chanspec))];
+	range = range_codes_pci1050_ai[CR_RANGE((insn->chanspec))];
 
 	mutex_lock(&devpriv->mutex);
 	for (n = 0; n < insn->n; n++) {
@@ -181,6 +134,7 @@ static int dyna_pci10xx_di_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn, unsigned int *data)
 {
+	struct dyna_pci10xx_private *devpriv = dev->private;
 	u16 d = 0;
 
 	mutex_lock(&devpriv->mutex);
@@ -200,6 +154,8 @@ static int dyna_pci10xx_do_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn, unsigned int *data)
 {
+	struct dyna_pci10xx_private *devpriv = dev->private;
+
 	/* The insn data is a mask in data[0] and the new data
 	 * in data[1], each channel cooresponding to a bit.
 	 * s->state contains the previous write data
@@ -223,143 +179,98 @@ static int dyna_pci10xx_do_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static struct pci_dev *dyna_pci10xx_find_pci_dev(struct comedi_device *dev,
-						 struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int i;
-
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (bus != pcidev->bus->number ||
-			    slot != PCI_SLOT(pcidev->devfn))
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_DYNALOG)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(boardtypes); ++i) {
-			if (pcidev->device != boardtypes[i].device_id)
-				continue;
-
-			dev->board_ptr = &boardtypes[i];
-			return pcidev;
-		}
-	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
-	return NULL;
-}
-
-static int dyna_pci10xx_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static int dyna_pci10xx_attach_pci(struct comedi_device *dev,
+				   struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev;
+	struct dyna_pci10xx_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret;
 
-	if (alloc_private(dev, sizeof(struct dyna_pci10xx_private)) < 0) {
-		printk(KERN_ERR "comedi: dyna_pci10xx: "
-			"failed to allocate memory!\n");
-		return -ENOMEM;
-	}
-
-	pcidev = dyna_pci10xx_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
 	comedi_set_hw_dev(dev, &pcidev->dev);
 
-	dev->board_name = thisboard->name;
-	dev->irq = 0;
-
-	if (comedi_pci_enable(pcidev, DRV_NAME)) {
-		printk(KERN_ERR "comedi: dyna_pci10xx: "
-			"failed to enable PCI device and request regions!");
-		return -EIO;
-	}
-
-	mutex_init(&devpriv->mutex);
+	dev->board_name = dev->driver->driver_name;
 
-	printk(KERN_INFO "comedi: dyna_pci10xx: device found!\n");
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
 
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
 	dev->iobase = pci_resource_start(pcidev, 2);
 	devpriv->BADR3 = pci_resource_start(pcidev, 3);
 
+	mutex_init(&devpriv->mutex);
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
 
 	/* analog input */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan = thisboard->ai_chans;
+	s->n_chan = 16;
 	s->maxdata = 0x0FFF;
-	s->range_table = thisboard->range_ai;
+	s->range_table = &range_pci1050_ai;
 	s->len_chanlist = 16;
 	s->insn_read = dyna_pci10xx_insn_read_ai;
 
 	/* analog output */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = thisboard->ao_chans;
+	s->n_chan = 16;
 	s->maxdata = 0x0FFF;
-	s->range_table = thisboard->range_ao;
+	s->range_table = &range_unipolar10;
 	s->len_chanlist = 16;
 	s->insn_write = dyna_pci10xx_insn_write_ao;
 
 	/* digital input */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = thisboard->di_chans;
+	s->n_chan = 16;
 	s->maxdata = 1;
 	s->range_table = &range_digital;
-	s->len_chanlist = thisboard->di_chans;
+	s->len_chanlist = 16;
 	s->insn_bits = dyna_pci10xx_di_insn_bits;
 
 	/* digital output */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
-	s->n_chan = thisboard->do_chans;
+	s->n_chan = 16;
 	s->maxdata = 1;
 	s->range_table = &range_digital;
-	s->len_chanlist = thisboard->do_chans;
+	s->len_chanlist = 16;
 	s->state = 0;
 	s->insn_bits = dyna_pci10xx_do_insn_bits;
 
-	printk(KERN_INFO "comedi: dyna_pci10xx: %s - device setup completed!\n",
-		thisboard->name);
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
 
-	return 1;
+	return 0;
 }
 
 static void dyna_pci10xx_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct dyna_pci10xx_private *devpriv = dev->private;
 
 	if (devpriv)
 		mutex_destroy(&devpriv->mutex);
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver dyna_pci10xx_driver = {
 	.driver_name	= "dyna_pci10xx",
 	.module		= THIS_MODULE,
-	.attach		= dyna_pci10xx_attach,
+	.attach_pci	= dyna_pci10xx_attach_pci,
 	.detach		= dyna_pci10xx_detach,
-	.board_name	= &boardtypes[0].name,
-	.offset		= sizeof(struct boardtype),
-	.num_names	= ARRAY_SIZE(boardtypes),
 };
 
 static int __devinit dyna_pci10xx_pci_probe(struct pci_dev *dev,
diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
index d1da80976f8..ae8e8f46029 100644
--- a/drivers/staging/comedi/drivers/fl512.c
+++ b/drivers/staging/comedi/drivers/fl512.c
@@ -140,7 +140,7 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	 * this if the definitions of the supdevices, 2 have been defined
 	 */
 	/* Analog indput */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* define subdevice as Analog In */
 	s->type = COMEDI_SUBD_AI;
 	/* you can read it from userspace */
@@ -156,7 +156,7 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	printk(KERN_INFO "comedi: fl512: subdevice 0 initialized\n");
 
 	/* Analog output */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* define subdevice as Analog OUT */
 	s->type = COMEDI_SUBD_AO;
 	/* you can write it from userspace */
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index 79f580841de..abff6603952 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -436,7 +436,7 @@ static int setup_subdevices(struct comedi_device *dev)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog input subdevice */
 	dev->read_subdev = s;
 /*	dev->write_subdev = s; */
@@ -723,45 +723,24 @@ static int di_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 		       struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
 	int i;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually
-	 * compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/*  uniqueness check */
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index b10ebdbc1f7..d696d4d51e2 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -44,10 +44,7 @@ There are 4 x 12-bit Analogue Outputs.  Ranges : 5V, 10V, +/-5V, +/-10V
 
 4 x 16-bit counters
 
-Options:
- [0] - PCI bus number - if bus number and slot number are 0,
-			then driver search for first unused card
- [1] - PCI slot number
+Configuration options: not applicable, uses PCI auto config
 */
 
 #include <linux/interrupt.h>
@@ -56,16 +53,7 @@ Options:
 #include <linux/delay.h>
 #include <linux/pci.h>
 
-#include "icp_multi.h"
-
-#define DEVICE_ID	0x8000	/* Device ID */
-
-#define ICP_MULTI_EXTDEBUG
-
-/*  Hardware types of the cards */
-#define TYPE_ICP_MULTI	0
-
-#define IORANGE_ICP_MULTI 	32
+#define PCI_DEVICE_ID_ICP_MULTI	0x8000
 
 #define ICP_MULTI_ADC_CSR	0	/* R/W: ADC command/status register */
 #define ICP_MULTI_AI		2	/* R:   Analogue input data */
@@ -124,32 +112,10 @@ static const char range_codes_analog[] = { 0x00, 0x20, 0x10, 0x30 };
 	Data & Structure declarations
 ==============================================================================
 */
-static unsigned short pci_list_builded;	/*>0 list of card is known */
-
-struct boardtype {
-	const char *name;	/*  driver name */
-	int device_id;
-	int iorange;		/*  I/O range len */
-	char have_irq;		/*  1=card support IRQ */
-	char cardtype;		/*  0=ICP Multi */
-	int n_aichan;		/*  num of A/D chans */
-	int n_aichand;		/*  num of A/D chans in diff mode */
-	int n_aochan;		/*  num of D/A chans */
-	int n_dichan;		/*  num of DI chans */
-	int n_dochan;		/*  num of DO chans */
-	int n_ctrs;		/*  num of counters */
-	int ai_maxdata;		/*  resolution of A/D */
-	int ao_maxdata;		/*  resolution of D/A */
-	const struct comedi_lrange *rangelist_ai;	/*  rangelist for A/D */
-	const char *rangecode;	/*  range codes for programming */
-	const struct comedi_lrange *rangelist_ao;	/*  rangelist for D/A */
-};
 
 struct icp_multi_private {
-	struct pcilst_struct *card;	/*  pointer to card */
 	char valid;		/*  card is usable */
 	void __iomem *io_addr;		/*  Pointer to mapped io address */
-	resource_size_t phys_iobase;	/*  Physical io address */
 	unsigned int AdcCmdStatus;	/*  ADC Command/Status register */
 	unsigned int DacCmdStatus;	/*  DAC Command/Status register */
 	unsigned int IntEnable;	/*  Interrupt Enable register */
@@ -164,40 +130,14 @@ struct icp_multi_private {
 	unsigned int do_data;	/*  Remember digital output data */
 };
 
-#define devpriv ((struct icp_multi_private *)dev->private)
-#define this_board ((const struct boardtype *)dev->board_ptr)
-
-/*
-==============================================================================
-
-Name:	setup_channel_list
-
-Description:
-	This function sets the appropriate channel selection,
-	differential input mode and range bits in the ADC Command/
-	Status register.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current service structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	unsigned int *chanlist	Pointer to packed channel list
-	unsigned int n_chan	Number of channels to scan
-
-Returns:Void
-
-==============================================================================
-*/
 static void setup_channel_list(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       unsigned int *chanlist, unsigned int n_chan)
 {
+	struct icp_multi_private *devpriv = dev->private;
 	unsigned int i, range, chanprog;
 	unsigned int diff;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG:  setup_channel_list(...,%d)\n", n_chan);
-#endif
 	devpriv->act_chanlist_len = n_chan;
 	devpriv->act_chanlist_pos = 0;
 
@@ -228,50 +168,23 @@ static void setup_channel_list(struct comedi_device *dev,
 			devpriv->AdcCmdStatus |= (chanprog << 8);
 
 		/*  Get range for current channel */
-		range = this_board->rangecode[CR_RANGE(chanlist[i])];
+		range = range_codes_analog[CR_RANGE(chanlist[i])];
 		/*  Set range. bits 4-5 */
 		devpriv->AdcCmdStatus |= range;
 
 		/* Output channel, range, mode to ICP Multi */
 		writew(devpriv->AdcCmdStatus,
 		       devpriv->io_addr + ICP_MULTI_ADC_CSR);
-
-#ifdef ICP_MULTI_EXTDEBUG
-		printk(KERN_DEBUG
-		       "GS: %2d. [%4x]=%4x %4x\n", i, chanprog, range,
-		       devpriv->act_chanlist[i]);
-#endif
 	}
-
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_read_ai
-
-Description:
-	This function reads a single analogue input.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to analogue input data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_read_ai(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
+	struct icp_multi_private *devpriv = dev->private;
 	int n, timeout;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG "icp multi EDBG: BGN: icp_multi_insn_read_ai(...)\n");
-#endif
 	/*  Disable A/D conversion ready interrupt */
 	devpriv->IntEnable &= ~ADC_READY;
 	writew(devpriv->IntEnable, devpriv->io_addr + ICP_MULTI_INT_EN);
@@ -283,12 +196,6 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev,
 	/*  Set up appropriate channel, mode and range data, for specified ch */
 	setup_channel_list(dev, s, &insn->chanspec, 1);
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG "icp_multi A ST=%4x IO=%p\n",
-	       readw(devpriv->io_addr + ICP_MULTI_ADC_CSR),
-	       devpriv->io_addr + ICP_MULTI_ADC_CSR);
-#endif
-
 	for (n = 0; n < insn->n; n++) {
 		/*  Set start ADC bit */
 		devpriv->AdcCmdStatus |= ADC_ST;
@@ -296,18 +203,8 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev,
 		       devpriv->io_addr + ICP_MULTI_ADC_CSR);
 		devpriv->AdcCmdStatus &= ~ADC_ST;
 
-#ifdef ICP_MULTI_EXTDEBUG
-		printk(KERN_DEBUG "icp multi B n=%d ST=%4x\n", n,
-		       readw(devpriv->io_addr + ICP_MULTI_ADC_CSR));
-#endif
-
 		udelay(1);
 
-#ifdef ICP_MULTI_EXTDEBUG
-		printk(KERN_DEBUG "icp multi C n=%d ST=%4x\n", n,
-		       readw(devpriv->io_addr + ICP_MULTI_ADC_CSR));
-#endif
-
 		/*  Wait for conversion to complete, or get fed up waiting */
 		timeout = 100;
 		while (timeout--) {
@@ -315,15 +212,6 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev,
 				    ICP_MULTI_ADC_CSR) & ADC_BSY))
 				goto conv_finish;
 
-#ifdef ICP_MULTI_EXTDEBUG
-			if (!(timeout % 10))
-				printk(KERN_DEBUG
-				       "icp multi D n=%d tm=%d ST=%4x\n", n,
-				       timeout,
-				       readw(devpriv->io_addr +
-					     ICP_MULTI_ADC_CSR));
-#endif
-
 			udelay(1);
 		}
 
@@ -342,11 +230,6 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev,
 		/*  Clear data received */
 		data[n] = 0;
 
-#ifdef ICP_MULTI_EXTDEBUG
-		printk(KERN_DEBUG
-		      "icp multi EDBG: END: icp_multi_insn_read_ai(...) n=%d\n",
-		      n);
-#endif
 		return -ETIME;
 
 conv_finish:
@@ -362,41 +245,16 @@ conv_finish:
 	devpriv->IntStatus |= ADC_READY;
 	writew(devpriv->IntStatus, devpriv->io_addr + ICP_MULTI_INT_STAT);
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: END: icp_multi_insn_read_ai(...) n=%d\n", n);
-#endif
 	return n;
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_write_ao
-
-Description:
-	This function writes a single analogue output.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to analogue output data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_write_ao(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
 				   struct comedi_insn *insn, unsigned int *data)
 {
+	struct icp_multi_private *devpriv = dev->private;
 	int n, chan, range, timeout;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: BGN: icp_multi_insn_write_ao(...)\n");
-#endif
 	/*  Disable D/A conversion ready interrupt */
 	devpriv->IntEnable &= ~DAC_READY;
 	writew(devpriv->IntEnable, devpriv->io_addr + ICP_MULTI_INT_EN);
@@ -415,7 +273,7 @@ static int icp_multi_insn_write_ao(struct comedi_device *dev,
 	/*  Bit 5 = 1 : 10V */
 	/*  Bits 8-9 : Channel number */
 	devpriv->DacCmdStatus &= 0xfccf;
-	devpriv->DacCmdStatus |= this_board->rangecode[range];
+	devpriv->DacCmdStatus |= range_codes_analog[range];
 	devpriv->DacCmdStatus |= (chan << 8);
 
 	writew(devpriv->DacCmdStatus, devpriv->io_addr + ICP_MULTI_DAC_CSR);
@@ -429,15 +287,6 @@ static int icp_multi_insn_write_ao(struct comedi_device *dev,
 				    ICP_MULTI_DAC_CSR) & DAC_BSY))
 				goto dac_ready;
 
-#ifdef ICP_MULTI_EXTDEBUG
-			if (!(timeout % 10))
-				printk(KERN_DEBUG
-				       "icp multi A n=%d tm=%d ST=%4x\n", n,
-				       timeout,
-				       readw(devpriv->io_addr +
-					     ICP_MULTI_DAC_CSR));
-#endif
-
 			udelay(1);
 		}
 
@@ -456,11 +305,6 @@ static int icp_multi_insn_write_ao(struct comedi_device *dev,
 		/*  Clear data received */
 		devpriv->ao_data[chan] = 0;
 
-#ifdef ICP_MULTI_EXTDEBUG
-		printk(KERN_DEBUG
-		     "icp multi EDBG: END: icp_multi_insn_write_ao(...) n=%d\n",
-		     n);
-#endif
 		return -ETIME;
 
 dac_ready:
@@ -477,35 +321,14 @@ dac_ready:
 		devpriv->ao_data[chan] = data[n];
 	}
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: END: icp_multi_insn_write_ao(...) n=%d\n", n);
-#endif
 	return n;
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_read_ao
-
-Description:
-	This function reads a single analogue output.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to analogue output data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_read_ao(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
+	struct icp_multi_private *devpriv = dev->private;
 	int n, chan;
 
 	/*  Get channel number */
@@ -518,58 +341,22 @@ static int icp_multi_insn_read_ao(struct comedi_device *dev,
 	return n;
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_bits_di
-
-Description:
-	This function reads the digital inputs.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to analogue output data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_bits_di(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
+	struct icp_multi_private *devpriv = dev->private;
+
 	data[1] = readw(devpriv->io_addr + ICP_MULTI_DI);
 
 	return insn->n;
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_bits_do
-
-Description:
-	This function writes the appropriate digital outputs.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to analogue output data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_bits_do(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG "icp multi EDBG: BGN: icp_multi_insn_bits_do(...)\n");
-#endif
+	struct icp_multi_private *devpriv = dev->private;
 
 	if (data[0]) {
 		s->state &= ~data[0];
@@ -582,30 +369,9 @@ static int icp_multi_insn_bits_do(struct comedi_device *dev,
 
 	data[1] = readw(devpriv->io_addr + ICP_MULTI_DI);
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG "icp multi EDBG: END: icp_multi_insn_bits_do(...)\n");
-#endif
 	return insn->n;
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_read_ctr
-
-Description:
-	This function reads the specified counter.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to counter data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_read_ctr(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
 				   struct comedi_insn *insn, unsigned int *data)
@@ -613,24 +379,6 @@ static int icp_multi_insn_read_ctr(struct comedi_device *dev,
 	return 0;
 }
 
-/*
-==============================================================================
-
-Name:	icp_multi_insn_write_ctr
-
-Description:
-	This function write to the specified counter.
-
-Parameters:
-	struct comedi_device *dev	Pointer to current device structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	struct comedi_insn *insn	Pointer to current comedi instruction
-	unsigned int *data		Pointer to counter data
-
-Returns:int			Nmuber of instructions executed
-
-==============================================================================
-*/
 static int icp_multi_insn_write_ctr(struct comedi_device *dev,
 				    struct comedi_subdevice *s,
 				    struct comedi_insn *insn,
@@ -639,44 +387,18 @@ static int icp_multi_insn_write_ctr(struct comedi_device *dev,
 	return 0;
 }
 
-/*
-==============================================================================
-
-Name:	interrupt_service_icp_multi
-
-Description:
-	This function is the interrupt service routine for all
-	interrupts generated by the icp multi board.
-
-Parameters:
-	int irq
-	void *d			Pointer to current device
-
-==============================================================================
-*/
 static irqreturn_t interrupt_service_icp_multi(int irq, void *d)
 {
 	struct comedi_device *dev = d;
+	struct icp_multi_private *devpriv = dev->private;
 	int int_no;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: BGN: interrupt_service_icp_multi(%d,...)\n",
-	       irq);
-#endif
-
 	/*  Is this interrupt from our board? */
 	int_no = readw(devpriv->io_addr + ICP_MULTI_INT_STAT) & Status_IRQ;
 	if (!int_no)
 		/*  No, exit */
 		return IRQ_NONE;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: interrupt_service_icp_multi() ST: %4x\n",
-	       readw(devpriv->io_addr + ICP_MULTI_INT_STAT));
-#endif
-
 	/*  Determine which interrupt is active & handle it */
 	switch (int_no) {
 	case ADC_READY:
@@ -700,44 +422,16 @@ static irqreturn_t interrupt_service_icp_multi(int irq, void *d)
 
 	}
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: END: interrupt_service_icp_multi(...)\n");
-#endif
 	return IRQ_HANDLED;
 }
 
 #if 0
-/*
-==============================================================================
-
-Name:	check_channel_list
-
-Description:
-	This function checks if the channel list, provided by user
-	is built correctly
-
-Parameters:
-	struct comedi_device *dev	Pointer to current service structure
-	struct comedi_subdevice *s	Pointer to current subdevice structure
-	unsigned int *chanlist	Pointer to packed channel list
-	unsigned int n_chan	Number of channels to scan
-
-Returns:int 0 = failure
-	    1 = success
-
-==============================================================================
-*/
 static int check_channel_list(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      unsigned int *chanlist, unsigned int n_chan)
 {
 	unsigned int i;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG:  check_channel_list(...,%d)\n", n_chan);
-#endif
 	/*  Check that we at least have one channel to check */
 	if (n_chan < 1) {
 		comedi_error(dev, "range/channel list is empty!");
@@ -747,13 +441,13 @@ static int check_channel_list(struct comedi_device *dev,
 	for (i = 0; i < n_chan; i++) {
 		/*  Check that channel number is < maximum */
 		if (CR_AREF(chanlist[i]) == AREF_DIFF) {
-			if (CR_CHAN(chanlist[i]) > this_board->n_aichand) {
+			if (CR_CHAN(chanlist[i]) > (s->nchan / 2)) {
 				comedi_error(dev,
 					     "Incorrect differential ai ch-nr");
 				return 0;
 			}
 		} else {
-			if (CR_CHAN(chanlist[i]) > this_board->n_aichan) {
+			if (CR_CHAN(chanlist[i]) > s->n_chan) {
 				comedi_error(dev,
 					     "Incorrect ai channel number");
 				return 0;
@@ -764,295 +458,189 @@ static int check_channel_list(struct comedi_device *dev,
 }
 #endif
 
-/*
-==============================================================================
-
-Name:	icp_multi_reset
-
-Description:
-	This function resets the icp multi device to a 'safe' state
-
-Parameters:
-	struct comedi_device *dev	Pointer to current service structure
-
-Returns:int	0 = success
-
-==============================================================================
-*/
 static int icp_multi_reset(struct comedi_device *dev)
 {
+	struct icp_multi_private *devpriv = dev->private;
 	unsigned int i;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp_multi EDBG: BGN: icp_multi_reset(...)\n");
-#endif
 	/*  Clear INT enables and requests */
 	writew(0, devpriv->io_addr + ICP_MULTI_INT_EN);
 	writew(0x00ff, devpriv->io_addr + ICP_MULTI_INT_STAT);
 
-	if (this_board->n_aochan)
-		/*  Set DACs to 0..5V range and 0V output */
-		for (i = 0; i < this_board->n_aochan; i++) {
-			devpriv->DacCmdStatus &= 0xfcce;
+	/* Set DACs to 0..5V range and 0V output */
+	for (i = 0; i < 4; i++) {
+		devpriv->DacCmdStatus &= 0xfcce;
+
+		/*  Set channel number */
+		devpriv->DacCmdStatus |= (i << 8);
 
-			/*  Set channel number */
-			devpriv->DacCmdStatus |= (i << 8);
+		/*  Output 0V */
+		writew(0, devpriv->io_addr + ICP_MULTI_AO);
 
-			/*  Output 0V */
-			writew(0, devpriv->io_addr + ICP_MULTI_AO);
+		/*  Set start conversion bit */
+		devpriv->DacCmdStatus |= DAC_ST;
 
-			/*  Set start conversion bit */
-			devpriv->DacCmdStatus |= DAC_ST;
+		/*  Output to command / status register */
+		writew(devpriv->DacCmdStatus,
+			devpriv->io_addr + ICP_MULTI_DAC_CSR);
 
-			/*  Output to command / status register */
-			writew(devpriv->DacCmdStatus,
-			       devpriv->io_addr + ICP_MULTI_DAC_CSR);
+		/*  Delay to allow DAC time to recover */
+		udelay(1);
+	}
 
-			/*  Delay to allow DAC time to recover */
-			udelay(1);
-		}
-	/*  Digital outputs to 0 */
+	/* Digital outputs to 0 */
 	writew(0, devpriv->io_addr + ICP_MULTI_DO);
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "icp multi EDBG: END: icp_multi_reset(...)\n");
-#endif
 	return 0;
 }
 
-static int icp_multi_attach(struct comedi_device *dev,
-			    struct comedi_devconfig *it)
+static int icp_multi_attach_pci(struct comedi_device *dev,
+				struct pci_dev *pcidev)
 {
+	struct icp_multi_private *devpriv;
 	struct comedi_subdevice *s;
-	int ret, subdev, n_subdevices;
-	unsigned int irq;
-	struct pcilst_struct *card = NULL;
-	resource_size_t io_addr[5], iobase;
-	unsigned char pci_bus, pci_slot, pci_func;
+	resource_size_t iobase;
+	int ret;
 
-	printk(KERN_WARNING
-	       "icp_multi EDBG: BGN: icp_multi_attach(...)\n");
+	comedi_set_hw_dev(dev, &pcidev->dev);
+	dev->board_name = dev->driver->driver_name;
 
-	/*  Allocate private data storage space */
-	ret = alloc_private(dev, sizeof(struct icp_multi_private));
+	ret = alloc_private(dev, sizeof(*devpriv));
 	if (ret < 0)
 		return ret;
+	devpriv = dev->private;
 
-	/*  Initialise list of PCI cards in system, if not already done so */
-	if (pci_list_builded++ == 0) {
-		pci_card_list_init(PCI_VENDOR_ID_ICP,
-#ifdef ICP_MULTI_EXTDEBUG
-				   1
-#else
-				   0
-#endif
-		    );
-	}
-
-	printk(KERN_WARNING
-	       "Anne's comedi%d: icp_multi: board=%s", dev->minor,
-	       this_board->name);
-
-	card = select_and_alloc_pci_card(PCI_VENDOR_ID_ICP,
-					 this_board->device_id, it->options[0],
-					 it->options[1]);
-
-	if (card == NULL)
-		return -EIO;
-
-	devpriv->card = card;
-
-	if ((pci_card_data(card, &pci_bus, &pci_slot, &pci_func, &io_addr[0],
-			   &irq)) < 0) {
-		printk(KERN_WARNING " - Can't get configuration data!\n");
-		return -EIO;
-	}
-
-	iobase = io_addr[2];
-	devpriv->phys_iobase = iobase;
-
-	printk(KERN_WARNING
-	       ", b:s:f=%d:%d:%d, io=0x%8llx \n", pci_bus, pci_slot, pci_func,
-	       (unsigned long long)iobase);
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	iobase = pci_resource_start(pcidev, 2);
+	dev->iobase = iobase;
 
 	devpriv->io_addr = ioremap(iobase, ICP_MULTI_SIZE);
-
-	if (devpriv->io_addr == NULL) {
-		printk(KERN_WARNING "ioremap failed.\n");
+	if (!devpriv->io_addr)
 		return -ENOMEM;
-	}
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG
-	       "0x%08llx mapped to %p, ", (unsigned long long)iobase,
-	       devpriv->io_addr);
-#endif
 
-	dev->board_name = this_board->name;
-
-	n_subdevices = 0;
-	if (this_board->n_aichan)
-		n_subdevices++;
-	if (this_board->n_aochan)
-		n_subdevices++;
-	if (this_board->n_dichan)
-		n_subdevices++;
-	if (this_board->n_dochan)
-		n_subdevices++;
-	if (this_board->n_ctrs)
-		n_subdevices++;
-
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
+	ret = comedi_alloc_subdevices(dev, 5);
 	if (ret)
 		return ret;
 
 	icp_multi_reset(dev);
 
-	if (this_board->have_irq) {
-		if (irq) {
-			if (request_irq(irq, interrupt_service_icp_multi,
-					IRQF_SHARED, "Inova Icp Multi", dev)) {
-				printk(KERN_WARNING
-				    "unable to allocate IRQ %u, DISABLING IT",
-				     irq);
-				irq = 0;	/* Can't use IRQ */
-			} else
-				printk(KERN_WARNING ", irq=%u", irq);
-		} else
-			printk(KERN_WARNING ", IRQ disabled");
-	} else
-		irq = 0;
-
-	dev->irq = irq;
-
-	printk(KERN_WARNING ".\n");
-
-	subdev = 0;
-
-	if (this_board->n_aichan) {
-		s = dev->subdevices + subdev;
-		dev->read_subdev = s;
-		s->type = COMEDI_SUBD_AI;
-		s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND;
-		if (this_board->n_aichand)
-			s->subdev_flags |= SDF_DIFF;
-		s->n_chan = this_board->n_aichan;
-		s->maxdata = this_board->ai_maxdata;
-		s->len_chanlist = this_board->n_aichan;
-		s->range_table = this_board->rangelist_ai;
-		s->insn_read = icp_multi_insn_read_ai;
-		subdev++;
+	if (pcidev->irq) {
+		ret = request_irq(pcidev->irq, interrupt_service_icp_multi,
+				  IRQF_SHARED, dev->board_name, dev);
+		if (ret == 0)
+			dev->irq = pcidev->irq;
 	}
 
-	if (this_board->n_aochan) {
-		s = dev->subdevices + subdev;
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = this_board->n_aochan;
-		s->maxdata = this_board->ao_maxdata;
-		s->len_chanlist = this_board->n_aochan;
-		s->range_table = this_board->rangelist_ao;
-		s->insn_write = icp_multi_insn_write_ao;
-		s->insn_read = icp_multi_insn_read_ao;
-		subdev++;
-	}
-
-	if (this_board->n_dichan) {
-		s = dev->subdevices + subdev;
-		s->type = COMEDI_SUBD_DI;
-		s->subdev_flags = SDF_READABLE;
-		s->n_chan = this_board->n_dichan;
-		s->maxdata = 1;
-		s->len_chanlist = this_board->n_dichan;
-		s->range_table = &range_digital;
-		s->io_bits = 0;
-		s->insn_bits = icp_multi_insn_bits_di;
-		subdev++;
-	}
-
-	if (this_board->n_dochan) {
-		s = dev->subdevices + subdev;
-		s->type = COMEDI_SUBD_DO;
-		s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-		s->n_chan = this_board->n_dochan;
-		s->maxdata = 1;
-		s->len_chanlist = this_board->n_dochan;
-		s->range_table = &range_digital;
-		s->io_bits = (1 << this_board->n_dochan) - 1;
-		s->state = 0;
-		s->insn_bits = icp_multi_insn_bits_do;
-		subdev++;
-	}
-
-	if (this_board->n_ctrs) {
-		s = dev->subdevices + subdev;
-		s->type = COMEDI_SUBD_COUNTER;
-		s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = this_board->n_ctrs;
-		s->maxdata = 0xffff;
-		s->len_chanlist = this_board->n_ctrs;
-		s->state = 0;
-		s->insn_read = icp_multi_insn_read_ctr;
-		s->insn_write = icp_multi_insn_write_ctr;
-		subdev++;
-	}
+	s = &dev->subdevices[0];
+	dev->read_subdev = s;
+	s->type = COMEDI_SUBD_AI;
+	s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;
+	s->n_chan = 16;
+	s->maxdata = 0x0fff;
+	s->len_chanlist = 16;
+	s->range_table = &range_analog;
+	s->insn_read = icp_multi_insn_read_ai;
+
+	s = &dev->subdevices[1];
+	s->type = COMEDI_SUBD_AO;
+	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
+	s->n_chan = 4;
+	s->maxdata = 0x0fff;
+	s->len_chanlist = 4;
+	s->range_table = &range_analog;
+	s->insn_write = icp_multi_insn_write_ao;
+	s->insn_read = icp_multi_insn_read_ao;
+
+	s = &dev->subdevices[2];
+	s->type = COMEDI_SUBD_DI;
+	s->subdev_flags = SDF_READABLE;
+	s->n_chan = 16;
+	s->maxdata = 1;
+	s->len_chanlist = 16;
+	s->range_table = &range_digital;
+	s->io_bits = 0;
+	s->insn_bits = icp_multi_insn_bits_di;
+
+	s = &dev->subdevices[3];
+	s->type = COMEDI_SUBD_DO;
+	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
+	s->n_chan = 8;
+	s->maxdata = 1;
+	s->len_chanlist = 8;
+	s->range_table = &range_digital;
+	s->io_bits = 0xff;
+	s->state = 0;
+	s->insn_bits = icp_multi_insn_bits_do;
+
+	s = &dev->subdevices[4];
+	s->type = COMEDI_SUBD_COUNTER;
+	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
+	s->n_chan = 4;
+	s->maxdata = 0xffff;
+	s->len_chanlist = 4;
+	s->state = 0;
+	s->insn_read = icp_multi_insn_read_ctr;
+	s->insn_write = icp_multi_insn_write_ctr;
 
 	devpriv->valid = 1;
 
-#ifdef ICP_MULTI_EXTDEBUG
-	printk(KERN_DEBUG "icp multi EDBG: END: icp_multi_attach(...)\n");
-#endif
+	dev_info(dev->class_dev, "%s attached, irq %sabled\n",
+		dev->board_name, dev->irq ? "en" : "dis");
 
 	return 0;
 }
 
 static void icp_multi_detach(struct comedi_device *dev)
 {
-	if (dev->private)
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct icp_multi_private *devpriv = dev->private;
+
+	if (devpriv)
 		if (devpriv->valid)
 			icp_multi_reset(dev);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
-	if (dev->private && devpriv->io_addr)
+	if (devpriv && devpriv->io_addr)
 		iounmap(devpriv->io_addr);
-	if (dev->private && devpriv->card)
-		pci_card_free(devpriv->card);
-	if (--pci_list_builded == 0)
-		pci_card_list_cleanup(PCI_VENDOR_ID_ICP);
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
+	}
 }
 
-static const struct boardtype boardtypes[] = {
-	{
-		.name		= "icp_multi",
-		.device_id	= DEVICE_ID,
-		.iorange	= IORANGE_ICP_MULTI,
-		.have_irq	= 1,
-		.cardtype	= TYPE_ICP_MULTI,
-		.n_aichan	= 16,
-		.n_aichand	= 8,
-		.n_aochan	= 4,
-		.n_dichan	= 16,
-		.n_dochan	= 8,
-		.n_ctrs		= 4,
-		.ai_maxdata	= 0x0fff,
-		.ao_maxdata	= 0x0fff,
-		.rangelist_ai	= &range_analog,
-		.rangecode	= range_codes_analog,
-		.rangelist_ao	= &range_analog,
-	},
-};
-
 static struct comedi_driver icp_multi_driver = {
 	.driver_name	= "icp_multi",
 	.module		= THIS_MODULE,
-	.attach		= icp_multi_attach,
+	.attach_pci	= icp_multi_attach_pci,
 	.detach		= icp_multi_detach,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.board_name	= &boardtypes[0].name,
-	.offset		= sizeof(struct boardtype),
 };
-module_comedi_driver(icp_multi_driver);
+
+static int __devinit icp_multi_pci_probe(struct pci_dev *dev,
+					   const struct pci_device_id *ent)
+{
+	return comedi_pci_auto_config(dev, &icp_multi_driver);
+}
+
+static void __devexit icp_multi_pci_remove(struct pci_dev *dev)
+{
+	comedi_pci_auto_unconfig(dev);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(icp_multi_pci_table) = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_ICP, PCI_DEVICE_ID_ICP_MULTI) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, icp_multi_pci_table);
+
+static struct pci_driver icp_multi_pci_driver = {
+	.name		= "icp_multi",
+	.id_table	= icp_multi_pci_table,
+	.probe		= icp_multi_pci_probe,
+	.remove		= __devexit_p(icp_multi_pci_remove),
+};
+module_comedi_pci_driver(icp_multi_driver, icp_multi_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
diff --git a/drivers/staging/comedi/drivers/icp_multi.h b/drivers/staging/comedi/drivers/icp_multi.h
deleted file mode 100644
index dbf9908cfde..00000000000
--- a/drivers/staging/comedi/drivers/icp_multi.h
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
-    comedi/drivers/icp_multi.h
-
-    Stuff for ICP Multi
-
-    Author: Anne Smorthit <anne.smorthit@sfwte.ch>
-
-*/
-
-#ifndef _ICP_MULTI_H_
-#define _ICP_MULTI_H_
-
-#include "../comedidev.h"
-
-/****************************************************************************/
-
-struct pcilst_struct {
-	struct pcilst_struct *next;
-	int used;
-	struct pci_dev *pcidev;
-	unsigned short vendor;
-	unsigned short device;
-	unsigned char pci_bus;
-	unsigned char pci_slot;
-	unsigned char pci_func;
-	resource_size_t io_addr[5];
-	unsigned int irq;
-};
-
-struct pcilst_struct *inova_devices;
-/* ptr to root list of all Inova devices */
-
-/****************************************************************************/
-
-static void pci_card_list_init(unsigned short pci_vendor, char display);
-static void pci_card_list_cleanup(unsigned short pci_vendor);
-static struct pcilst_struct *find_free_pci_card_by_device(unsigned short
-							  vendor_id,
-							  unsigned short
-							  device_id);
-static int find_free_pci_card_by_position(unsigned short vendor_id,
-					  unsigned short device_id,
-					  unsigned short pci_bus,
-					  unsigned short pci_slot,
-					  struct pcilst_struct **card);
-static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
-						       unsigned short device_id,
-						       unsigned short pci_bus,
-						       unsigned short pci_slot);
-
-static int pci_card_alloc(struct pcilst_struct *amcc);
-static int pci_card_free(struct pcilst_struct *amcc);
-static void pci_card_list_display(void);
-static int pci_card_data(struct pcilst_struct *amcc,
-			 unsigned char *pci_bus, unsigned char *pci_slot,
-			 unsigned char *pci_func, resource_size_t * io_addr,
-			 unsigned int *irq);
-
-/****************************************************************************/
-
-/* build list of Inova cards in this system */
-static void pci_card_list_init(unsigned short pci_vendor, char display)
-{
-	struct pci_dev *pcidev = NULL;
-	struct pcilst_struct *inova, *last;
-	int i;
-
-	inova_devices = NULL;
-	last = NULL;
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor == pci_vendor) {
-			inova = kzalloc(sizeof(*inova), GFP_KERNEL);
-			if (!inova) {
-				printk
-				    ("icp_multi: pci_card_list_init: allocation failed\n");
-				pci_dev_put(pcidev);
-				break;
-			}
-
-			inova->pcidev = pci_dev_get(pcidev);
-			if (last) {
-				last->next = inova;
-			} else {
-				inova_devices = inova;
-			}
-			last = inova;
-
-			inova->vendor = pcidev->vendor;
-			inova->device = pcidev->device;
-			inova->pci_bus = pcidev->bus->number;
-			inova->pci_slot = PCI_SLOT(pcidev->devfn);
-			inova->pci_func = PCI_FUNC(pcidev->devfn);
-			/* Note: resources may be invalid if PCI device
-			 * not enabled, but they are corrected in
-			 * pci_card_alloc. */
-			for (i = 0; i < 5; i++)
-				inova->io_addr[i] =
-				    pci_resource_start(pcidev, i);
-			inova->irq = pcidev->irq;
-		}
-	}
-
-	if (display)
-		pci_card_list_display();
-}
-
-/****************************************************************************/
-/* free up list of amcc cards in this system */
-static void pci_card_list_cleanup(unsigned short pci_vendor)
-{
-	struct pcilst_struct *inova, *next;
-
-	for (inova = inova_devices; inova; inova = next) {
-		next = inova->next;
-		pci_dev_put(inova->pcidev);
-		kfree(inova);
-	}
-
-	inova_devices = NULL;
-}
-
-/****************************************************************************/
-/* find first unused card with this device_id */
-static struct pcilst_struct *find_free_pci_card_by_device(unsigned short
-							  vendor_id,
-							  unsigned short
-							  device_id)
-{
-	struct pcilst_struct *inova, *next;
-
-	for (inova = inova_devices; inova; inova = next) {
-		next = inova->next;
-		if ((!inova->used) && (inova->device == device_id)
-		    && (inova->vendor == vendor_id))
-			return inova;
-
-	}
-
-	return NULL;
-}
-
-/****************************************************************************/
-/* find card on requested position */
-static int find_free_pci_card_by_position(unsigned short vendor_id,
-					  unsigned short device_id,
-					  unsigned short pci_bus,
-					  unsigned short pci_slot,
-					  struct pcilst_struct **card)
-{
-	struct pcilst_struct *inova, *next;
-
-	*card = NULL;
-	for (inova = inova_devices; inova; inova = next) {
-		next = inova->next;
-		if ((inova->vendor == vendor_id) && (inova->device == device_id)
-		    && (inova->pci_bus == pci_bus)
-		    && (inova->pci_slot == pci_slot)) {
-			if (!(inova->used)) {
-				*card = inova;
-				return 0;	/* ok, card is found */
-			} else {
-				return 2;	/* card exist but is used */
-			}
-		}
-	}
-
-	return 1;		/* no card found */
-}
-
-/****************************************************************************/
-/* mark card as used */
-static int pci_card_alloc(struct pcilst_struct *inova)
-{
-	int i;
-
-	if (!inova) {
-		printk(" - BUG!! inova is NULL!\n");
-		return -1;
-	}
-
-	if (inova->used)
-		return 1;
-	if (comedi_pci_enable(inova->pcidev, "icp_multi")) {
-		printk(" - Can't enable PCI device and request regions!\n");
-		return -1;
-	}
-	/* Resources will be accurate now. */
-	for (i = 0; i < 5; i++)
-		inova->io_addr[i] = pci_resource_start(inova->pcidev, i);
-	inova->irq = inova->pcidev->irq;
-	inova->used = 1;
-	return 0;
-}
-
-/****************************************************************************/
-/* mark card as free */
-static int pci_card_free(struct pcilst_struct *inova)
-{
-	if (!inova)
-		return -1;
-
-	if (!inova->used)
-		return 1;
-	inova->used = 0;
-	comedi_pci_disable(inova->pcidev);
-	return 0;
-}
-
-/****************************************************************************/
-/* display list of found cards */
-static void pci_card_list_display(void)
-{
-	struct pcilst_struct *inova, *next;
-
-	printk("Anne's List of pci cards\n");
-	printk("bus:slot:func vendor device io_inova io_daq irq used\n");
-
-	for (inova = inova_devices; inova; inova = next) {
-		next = inova->next;
-		printk
-		    ("%2d   %2d   %2d  0x%4x 0x%4x   0x%8llx 0x%8llx  %2u  %2d\n",
-		     inova->pci_bus, inova->pci_slot, inova->pci_func,
-		     inova->vendor, inova->device,
-		     (unsigned long long)inova->io_addr[0],
-		     (unsigned long long)inova->io_addr[2], inova->irq,
-		     inova->used);
-
-	}
-}
-
-/****************************************************************************/
-/* return all card information for driver */
-static int pci_card_data(struct pcilst_struct *inova,
-			 unsigned char *pci_bus, unsigned char *pci_slot,
-			 unsigned char *pci_func, resource_size_t * io_addr,
-			 unsigned int *irq)
-{
-	int i;
-
-	if (!inova)
-		return -1;
-	*pci_bus = inova->pci_bus;
-	*pci_slot = inova->pci_slot;
-	*pci_func = inova->pci_func;
-	for (i = 0; i < 5; i++)
-		io_addr[i] = inova->io_addr[i];
-	*irq = inova->irq;
-	return 0;
-}
-
-/****************************************************************************/
-/* select and alloc card */
-static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
-						       unsigned short device_id,
-						       unsigned short pci_bus,
-						       unsigned short pci_slot)
-{
-	struct pcilst_struct *card;
-	int err;
-
-	if ((pci_bus < 1) & (pci_slot < 1)) {	/* use autodetection */
-
-		card = find_free_pci_card_by_device(vendor_id, device_id);
-		if (card == NULL) {
-			printk(" - Unused card not found in system!\n");
-			return NULL;
-		}
-	} else {
-		switch (find_free_pci_card_by_position(vendor_id, device_id,
-						       pci_bus, pci_slot,
-						       &card)) {
-		case 1:
-			printk
-			    (" - Card not found on requested position b:s %d:%d!\n",
-			     pci_bus, pci_slot);
-			return NULL;
-		case 2:
-			printk
-			    (" - Card on requested position is used b:s %d:%d!\n",
-			     pci_bus, pci_slot);
-			return NULL;
-		}
-	}
-
-	err = pci_card_alloc(card);
-	if (err != 0) {
-		if (err > 0)
-			printk(" - Can't allocate card!\n");
-		/* else: error already printed. */
-		return NULL;
-	}
-
-	return card;
-}
-
-#endif
diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c
index 0f9cfe662b9..65ff1c9b973 100644
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ b/drivers/staging/comedi/drivers/ii_pci20kc.c
@@ -224,7 +224,7 @@ static int pci20xxx_attach(struct comedi_device *dev,
 	       dev->minor, devpriv->ioaddr);
 
 	for (i = 0; i < PCI20000_MODULES; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		id = readb(devpriv->ioaddr + (i + 1) * PCI20000_OFFSET);
 		s->private = devpriv->subdev_private + i;
 		sdp = s->private;
@@ -259,7 +259,7 @@ static int pci20xxx_attach(struct comedi_device *dev,
 	}
 
 	/* initialize struct pci20xxx_private */
-	pci20xxx_dio_init(dev, dev->subdevices + PCI20000_MODULES);
+	pci20xxx_dio_init(dev, &dev->subdevices[PCI20000_MODULES]);
 
 	return 1;
 }
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 93f94cd7bae..4a108ea8a9a 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -362,10 +362,11 @@ static int jr3_pci_open(struct comedi_device *dev)
 	return 0;
 }
 
-int read_idm_word(const u8 * data, size_t size, int *pos, unsigned int *val)
+static int read_idm_word(const u8 *data, size_t size, int *pos,
+			 unsigned int *val)
 {
 	int result = 0;
-	if (pos != 0 && val != 0) {
+	if (pos && val) {
 		/*  Skip over non hex */
 		for (; *pos < size && !isxdigit(data[*pos]); (*pos)++) {
 		}
@@ -875,7 +876,7 @@ static int jr3_pci_attach(struct comedi_device *dev,
 			p->maxdata_list[56] = 0xffff;
 			p->maxdata_list[57] = 0xffff;
 			/*  Channel specific range and maxdata */
-			dev->subdevices[i].range_table = 0;
+			dev->subdevices[i].range_table = NULL;
 			dev->subdevices[i].range_table_list =
 			    p->range_table_list;
 			dev->subdevices[i].maxdata = 0;
@@ -884,7 +885,7 @@ static int jr3_pci_attach(struct comedi_device *dev,
 	}
 
 	/*  Reset DSP card */
-	devpriv->iobase->channel[0].reset = 0;
+	writel(0, &devpriv->iobase->channel[0].reset);
 
 	result = comedi_load_firmware(dev, "jr3pci.idm", jr3_download_firmware);
 	dev_dbg(dev->class_dev, "Firmare load %d\n", result);
diff --git a/drivers/staging/comedi/drivers/jr3_pci.h b/drivers/staging/comedi/drivers/jr3_pci.h
index a1469611d84..9c42653d8f1 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.h
+++ b/drivers/staging/comedi/drivers/jr3_pci.h
@@ -97,7 +97,7 @@ enum {
 	mz = 0x0020,
 	changeV2 = 0x0040,
 	changeV1 = 0x0080
-} vect_bits_t;
+};
 
 /* WARNING_BITS */
 /* The warning_bits structure shows the bit pattern for the warning
@@ -116,7 +116,7 @@ enum {
 	mx_near_sat = 0x0008,
 	my_near_sat = 0x0010,
 	mz_near_sat = 0x0020
-} warning_bits_t;
+};
 
 /*  ERROR_BITS */
 /*  XX_SAT */
diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c
index d4e9292483a..e867b720f66 100644
--- a/drivers/staging/comedi/drivers/ke_counter.c
+++ b/drivers/staging/comedi/drivers/ke_counter.c
@@ -28,11 +28,7 @@ Author: Michael Hillmann
 Updated: Mon, 14 Apr 2008 15:42:42 +0100
 Status: tested
 
-Configuration Options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
+Configuration Options: not applicable, uses PCI auto config
 
 This driver is a simple driver to read the counter values from
 Kolter Electronic PCI Counter Card.
@@ -111,82 +107,53 @@ static int cnt_rinsn(struct comedi_device *dev,
 	return 1;
 }
 
-static struct pci_dev *cnt_find_pci_dev(struct comedi_device *dev,
-					struct comedi_devconfig *it)
+static const void *cnt_find_boardinfo(struct comedi_device *dev,
+				      struct pci_dev *pcidev)
 {
 	const struct cnt_board_struct *board;
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
 	int i;
 
-	/* Probe the device to determine what device in the series it is. */
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_KOLTER)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(cnt_boards); i++) {
-			board = &cnt_boards[i];
-			if (board->device_id != pcidev->device)
-				continue;
-
-			dev->board_ptr = board;
-			return pcidev;
-		}
+	for (i = 0; i < ARRAY_SIZE(cnt_boards); i++) {
+		board = &cnt_boards[i];
+		if (board->device_id == pcidev->device)
+			return board;
 	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
 	return NULL;
 }
 
-static int cnt_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int cnt_attach_pci(struct comedi_device *dev,
+			  struct pci_dev *pcidev)
 {
 	const struct cnt_board_struct *board;
-	struct pci_dev *pcidev;
-	struct comedi_subdevice *subdevice;
-	unsigned long io_base;
-	int error;
-
-	pcidev = cnt_find_pci_dev(dev, it);
-	if (!pcidev)
-		return -EIO;
+	struct comedi_subdevice *s;
+	int ret;
+
 	comedi_set_hw_dev(dev, &pcidev->dev);
-	board = comedi_board(dev);
 
+	board = cnt_find_boardinfo(dev, pcidev);
+	if (!board)
+		return -ENODEV;
+	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	/* enable PCI device and request regions */
-	error = comedi_pci_enable(pcidev, CNT_DRIVER_NAME);
-	if (error < 0) {
-		printk(KERN_WARNING "comedi%d: "
-		       "failed to enable PCI device and request regions!\n",
-		       dev->minor);
-		return error;
-	}
-
-	/* read register base address [PCI_BASE_ADDRESS #0] */
-	io_base = pci_resource_start(pcidev, 0);
-	dev->iobase = io_base;
+	ret = comedi_pci_enable(pcidev, dev->board_name);
+	if (ret)
+		return ret;
+	dev->iobase = pci_resource_start(pcidev, 0);
 
-	error = comedi_alloc_subdevices(dev, 1);
-	if (error)
-		return error;
+	ret = comedi_alloc_subdevices(dev, 1);
+	if (ret)
+		return ret;
 
-	subdevice = dev->subdevices + 0;
-	dev->read_subdev = subdevice;
+	s = &dev->subdevices[0];
+	dev->read_subdev = s;
 
-	subdevice->type = COMEDI_SUBD_COUNTER;
-	subdevice->subdev_flags = SDF_READABLE /* | SDF_COMMON */ ;
-	subdevice->n_chan = board->cnt_channel_nbr;
-	subdevice->maxdata = (1 << board->cnt_bits) - 1;
-	subdevice->insn_read = cnt_rinsn;
-	subdevice->insn_write = cnt_winsn;
+	s->type = COMEDI_SUBD_COUNTER;
+	s->subdev_flags = SDF_READABLE /* | SDF_COMMON */ ;
+	s->n_chan = board->cnt_channel_nbr;
+	s->maxdata = (1 << board->cnt_bits) - 1;
+	s->insn_read = cnt_rinsn;
+	s->insn_write = cnt_winsn;
 
 	/*  select 20MHz clock */
 	outb(3, dev->iobase + 248);
@@ -196,8 +163,9 @@ static int cnt_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	outb(0, dev->iobase + 0x20);
 	outb(0, dev->iobase + 0x40);
 
-	printk(KERN_INFO "comedi%d: " CNT_DRIVER_NAME " attached.\n",
-	       dev->minor);
+	dev_info(dev->class_dev, "%s: %s attached\n",
+		dev->driver->driver_name, dev->board_name);
+
 	return 0;
 }
 
@@ -208,14 +176,13 @@ static void cnt_detach(struct comedi_device *dev)
 	if (pcidev) {
 		if (dev->iobase)
 			comedi_pci_disable(pcidev);
-		pci_dev_put(pcidev);
 	}
 }
 
 static struct comedi_driver ke_counter_driver = {
 	.driver_name	= "ke_counter",
 	.module		= THIS_MODULE,
-	.attach		= cnt_attach,
+	.attach_pci	= cnt_attach_pci,
 	.detach		= cnt_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index 9a8258e6fa4..22db35d091f 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -35,13 +35,7 @@ Supports:
     - Digital I/O
     - Counter
 
-Configuration Options:
-
-    [0] - PCI bus number (optional)
-    [1] - PCI slot number (optional)
-
-    If bus/slot is not specified, the first available PCI
-    device will be used.
+Configuration Options: not applicable, uses PCI auto config
 
 The firmware required by these boards is available in the
 comedi_nonfree_firmware tarball available from
@@ -58,51 +52,306 @@ broken.
 #include <linux/list.h>
 #include <linux/spinlock.h>
 
-#include "me4000.h"
+#include "comedi_fc.h"
+#include "8253.h"
+
 #if 0
 /* file removed due to GPL incompatibility */
 #include "me4000_fw.h"
 #endif
 
-static const struct me4000_board me4000_boards[] = {
-	{"ME-4650", 0x4650, {0, 0}, {16, 0, 0, 0}, {4}, {0} },
-
-	{"ME-4660", 0x4660, {0, 0}, {32, 0, 16, 0}, {4}, {3} },
-	{"ME-4660i", 0x4661, {0, 0}, {32, 0, 16, 0}, {4}, {3} },
-	{"ME-4660s", 0x4662, {0, 0}, {32, 8, 16, 0}, {4}, {3} },
-	{"ME-4660is", 0x4663, {0, 0}, {32, 8, 16, 0}, {4}, {3} },
-
-	{"ME-4670", 0x4670, {4, 0}, {32, 0, 16, 1}, {4}, {3} },
-	{"ME-4670i", 0x4671, {4, 0}, {32, 0, 16, 1}, {4}, {3} },
-	{"ME-4670s", 0x4672, {4, 0}, {32, 8, 16, 1}, {4}, {3} },
-	{"ME-4670is", 0x4673, {4, 0}, {32, 8, 16, 1}, {4}, {3} },
+#define PCI_VENDOR_ID_MEILHAUS		0x1402
+
+#define PCI_DEVICE_ID_MEILHAUS_ME4650	0x4650
+#define PCI_DEVICE_ID_MEILHAUS_ME4660	0x4660
+#define PCI_DEVICE_ID_MEILHAUS_ME4660I	0x4661
+#define PCI_DEVICE_ID_MEILHAUS_ME4660S	0x4662
+#define PCI_DEVICE_ID_MEILHAUS_ME4660IS	0x4663
+#define PCI_DEVICE_ID_MEILHAUS_ME4670	0x4670
+#define PCI_DEVICE_ID_MEILHAUS_ME4670I	0x4671
+#define PCI_DEVICE_ID_MEILHAUS_ME4670S	0x4672
+#define PCI_DEVICE_ID_MEILHAUS_ME4670IS	0x4673
+#define PCI_DEVICE_ID_MEILHAUS_ME4680	0x4680
+#define PCI_DEVICE_ID_MEILHAUS_ME4680I	0x4681
+#define PCI_DEVICE_ID_MEILHAUS_ME4680S	0x4682
+#define PCI_DEVICE_ID_MEILHAUS_ME4680IS	0x4683
 
-	{"ME-4680", 0x4680, {4, 4}, {32, 0, 16, 1}, {4}, {3} },
-	{"ME-4680i", 0x4681, {4, 4}, {32, 0, 16, 1}, {4}, {3} },
-	{"ME-4680s", 0x4682, {4, 4}, {32, 8, 16, 1}, {4}, {3} },
-	{"ME-4680is", 0x4683, {4, 4}, {32, 8, 16, 1}, {4}, {3} },
+/*
+ * ME4000 Register map and bit defines
+ */
+#define ME4000_AO_CHAN(x)			((x) * 0x18)
+
+#define ME4000_AO_CTRL_REG(x)			(0x00 + ME4000_AO_CHAN(x))
+#define ME4000_AO_CTRL_BIT_MODE_0		(1 << 0)
+#define ME4000_AO_CTRL_BIT_MODE_1		(1 << 1)
+#define ME4000_AO_CTRL_MASK_MODE		(3 << 0)
+#define ME4000_AO_CTRL_BIT_STOP			(1 << 2)
+#define ME4000_AO_CTRL_BIT_ENABLE_FIFO		(1 << 3)
+#define ME4000_AO_CTRL_BIT_ENABLE_EX_TRIG	(1 << 4)
+#define ME4000_AO_CTRL_BIT_EX_TRIG_EDGE		(1 << 5)
+#define ME4000_AO_CTRL_BIT_IMMEDIATE_STOP	(1 << 7)
+#define ME4000_AO_CTRL_BIT_ENABLE_DO		(1 << 8)
+#define ME4000_AO_CTRL_BIT_ENABLE_IRQ		(1 << 9)
+#define ME4000_AO_CTRL_BIT_RESET_IRQ		(1 << 10)
+#define ME4000_AO_STATUS_REG(x)			(0x04 + ME4000_AO_CHAN(x))
+#define ME4000_AO_STATUS_BIT_FSM		(1 << 0)
+#define ME4000_AO_STATUS_BIT_FF			(1 << 1)
+#define ME4000_AO_STATUS_BIT_HF			(1 << 2)
+#define ME4000_AO_STATUS_BIT_EF			(1 << 3)
+#define ME4000_AO_FIFO_REG(x)			(0x08 + ME4000_AO_CHAN(x))
+#define ME4000_AO_SINGLE_REG(x)			(0x0c + ME4000_AO_CHAN(x))
+#define ME4000_AO_TIMER_REG(x)			(0x10 + ME4000_AO_CHAN(x))
+#define ME4000_AI_CTRL_REG			0x74
+#define ME4000_AI_STATUS_REG			0x74
+#define ME4000_AI_CTRL_BIT_MODE_0		(1 << 0)
+#define ME4000_AI_CTRL_BIT_MODE_1		(1 << 1)
+#define ME4000_AI_CTRL_BIT_MODE_2		(1 << 2)
+#define ME4000_AI_CTRL_BIT_SAMPLE_HOLD		(1 << 3)
+#define ME4000_AI_CTRL_BIT_IMMEDIATE_STOP	(1 << 4)
+#define ME4000_AI_CTRL_BIT_STOP			(1 << 5)
+#define ME4000_AI_CTRL_BIT_CHANNEL_FIFO		(1 << 6)
+#define ME4000_AI_CTRL_BIT_DATA_FIFO		(1 << 7)
+#define ME4000_AI_CTRL_BIT_FULLSCALE		(1 << 8)
+#define ME4000_AI_CTRL_BIT_OFFSET		(1 << 9)
+#define ME4000_AI_CTRL_BIT_EX_TRIG_ANALOG	(1 << 10)
+#define ME4000_AI_CTRL_BIT_EX_TRIG		(1 << 11)
+#define ME4000_AI_CTRL_BIT_EX_TRIG_FALLING	(1 << 12)
+#define ME4000_AI_CTRL_BIT_EX_IRQ		(1 << 13)
+#define ME4000_AI_CTRL_BIT_EX_IRQ_RESET		(1 << 14)
+#define ME4000_AI_CTRL_BIT_LE_IRQ		(1 << 15)
+#define ME4000_AI_CTRL_BIT_LE_IRQ_RESET		(1 << 16)
+#define ME4000_AI_CTRL_BIT_HF_IRQ		(1 << 17)
+#define ME4000_AI_CTRL_BIT_HF_IRQ_RESET		(1 << 18)
+#define ME4000_AI_CTRL_BIT_SC_IRQ		(1 << 19)
+#define ME4000_AI_CTRL_BIT_SC_IRQ_RESET		(1 << 20)
+#define ME4000_AI_CTRL_BIT_SC_RELOAD		(1 << 21)
+#define ME4000_AI_STATUS_BIT_EF_CHANNEL		(1 << 22)
+#define ME4000_AI_STATUS_BIT_HF_CHANNEL		(1 << 23)
+#define ME4000_AI_STATUS_BIT_FF_CHANNEL		(1 << 24)
+#define ME4000_AI_STATUS_BIT_EF_DATA		(1 << 25)
+#define ME4000_AI_STATUS_BIT_HF_DATA		(1 << 26)
+#define ME4000_AI_STATUS_BIT_FF_DATA		(1 << 27)
+#define ME4000_AI_STATUS_BIT_LE			(1 << 28)
+#define ME4000_AI_STATUS_BIT_FSM		(1 << 29)
+#define ME4000_AI_CTRL_BIT_EX_TRIG_BOTH		(1 << 31)
+#define ME4000_AI_CHANNEL_LIST_REG		0x78
+#define ME4000_AI_LIST_INPUT_SINGLE_ENDED	(0 << 5)
+#define ME4000_AI_LIST_INPUT_DIFFERENTIAL	(1 << 5)
+#define ME4000_AI_LIST_RANGE_BIPOLAR_10		(0 << 6)
+#define ME4000_AI_LIST_RANGE_BIPOLAR_2_5	(1 << 6)
+#define ME4000_AI_LIST_RANGE_UNIPOLAR_10	(2 << 6)
+#define ME4000_AI_LIST_RANGE_UNIPOLAR_2_5	(3 << 6)
+#define ME4000_AI_LIST_LAST_ENTRY		(1 << 8)
+#define ME4000_AI_DATA_REG			0x7c
+#define ME4000_AI_CHAN_TIMER_REG		0x80
+#define ME4000_AI_CHAN_PRE_TIMER_REG		0x84
+#define ME4000_AI_SCAN_TIMER_LOW_REG		0x88
+#define ME4000_AI_SCAN_TIMER_HIGH_REG		0x8c
+#define ME4000_AI_SCAN_PRE_TIMER_LOW_REG	0x90
+#define ME4000_AI_SCAN_PRE_TIMER_HIGH_REG	0x94
+#define ME4000_AI_START_REG			0x98
+#define ME4000_IRQ_STATUS_REG			0x9c
+#define ME4000_IRQ_STATUS_BIT_EX		(1 << 0)
+#define ME4000_IRQ_STATUS_BIT_LE		(1 << 1)
+#define ME4000_IRQ_STATUS_BIT_AI_HF		(1 << 2)
+#define ME4000_IRQ_STATUS_BIT_AO_0_HF		(1 << 3)
+#define ME4000_IRQ_STATUS_BIT_AO_1_HF		(1 << 4)
+#define ME4000_IRQ_STATUS_BIT_AO_2_HF		(1 << 5)
+#define ME4000_IRQ_STATUS_BIT_AO_3_HF		(1 << 6)
+#define ME4000_IRQ_STATUS_BIT_SC		(1 << 7)
+#define ME4000_DIO_PORT_0_REG			0xa0
+#define ME4000_DIO_PORT_1_REG			0xa4
+#define ME4000_DIO_PORT_2_REG			0xa8
+#define ME4000_DIO_PORT_3_REG			0xac
+#define ME4000_DIO_DIR_REG			0xb0
+#define ME4000_AO_LOADSETREG_XX			0xb4
+#define ME4000_DIO_CTRL_REG			0xb8
+#define ME4000_DIO_CTRL_BIT_MODE_0		(1 << 0)
+#define ME4000_DIO_CTRL_BIT_MODE_1		(1 << 1)
+#define ME4000_DIO_CTRL_BIT_MODE_2		(1 << 2)
+#define ME4000_DIO_CTRL_BIT_MODE_3		(1 << 3)
+#define ME4000_DIO_CTRL_BIT_MODE_4		(1 << 4)
+#define ME4000_DIO_CTRL_BIT_MODE_5		(1 << 5)
+#define ME4000_DIO_CTRL_BIT_MODE_6		(1 << 6)
+#define ME4000_DIO_CTRL_BIT_MODE_7		(1 << 7)
+#define ME4000_DIO_CTRL_BIT_FUNCTION_0		(1 << 8)
+#define ME4000_DIO_CTRL_BIT_FUNCTION_1		(1 << 9)
+#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_0		(1 << 10)
+#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_1		(1 << 11)
+#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_2		(1 << 12)
+#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_3		(1 << 13)
+#define ME4000_AO_DEMUX_ADJUST_REG		0xbc
+#define ME4000_AO_DEMUX_ADJUST_VALUE		0x4c
+#define ME4000_AI_SAMPLE_COUNTER_REG		0xc0
 
-	{0},
+/*
+ * PLX Register map and bit defines
+ */
+#define PLX_INTCSR				0x4c
+#define PLX_INTCSR_LOCAL_INT1_EN		(1 << 0)
+#define PLX_INTCSR_LOCAL_INT1_POL		(1 << 1)
+#define PLX_INTCSR_LOCAL_INT1_STATE		(1 << 2)
+#define PLX_INTCSR_LOCAL_INT2_EN		(1 << 3)
+#define PLX_INTCSR_LOCAL_INT2_POL		(1 << 4)
+#define PLX_INTCSR_LOCAL_INT2_STATE		(1 << 5)
+#define PLX_INTCSR_PCI_INT_EN			(1 << 6)
+#define PLX_INTCSR_SOFT_INT			(1 << 7)
+#define PLX_ICR					0x50
+#define PLX_ICR_BIT_EEPROM_CLOCK_SET		(1 << 24)
+#define PLX_ICR_BIT_EEPROM_CHIP_SELECT		(1 << 25)
+#define PLX_ICR_BIT_EEPROM_WRITE		(1 << 26)
+#define PLX_ICR_BIT_EEPROM_READ			(1 << 27)
+#define PLX_ICR_BIT_EEPROM_VALID		(1 << 28)
+#define PLX_ICR_MASK_EEPROM			(0x1f << 24)
+
+#define EEPROM_DELAY				1
+
+#define ME4000_AI_FIFO_COUNT			2048
+
+#define ME4000_AI_MIN_TICKS			66
+#define ME4000_AI_MIN_SAMPLE_TIME		2000
+#define ME4000_AI_BASE_FREQUENCY		(unsigned int) 33E6
+
+#define ME4000_AI_CHANNEL_LIST_COUNT		1024
+
+struct me4000_info {
+	unsigned long plx_regbase;
+	unsigned long timer_regbase;
+
+	unsigned int ao_readback[4];
 };
 
-#define ME4000_BOARD_VERSIONS (ARRAY_SIZE(me4000_boards) - 1)
-
-/*-----------------------------------------------------------------------------
-  Meilhaus function prototypes
-  ---------------------------------------------------------------------------*/
-static int get_registers(struct comedi_device *dev, struct pci_dev *pci_dev_p);
-static int init_board_info(struct comedi_device *dev,
-			   struct pci_dev *pci_dev_p);
-static int init_ao_context(struct comedi_device *dev);
-static int init_ai_context(struct comedi_device *dev);
-static int init_dio_context(struct comedi_device *dev);
-static int init_cnt_context(struct comedi_device *dev);
-static int xilinx_download(struct comedi_device *dev);
-static int reset_board(struct comedi_device *dev);
+struct me4000_board {
+	const char *name;
+	unsigned short device_id;
+	int ao_nchan;
+	int ao_fifo;
+	int ai_nchan;
+	int ai_diff_nchan;
+	int ai_sh_nchan;
+	int ex_trig_analog;
+	int dio_nchan;
+	int has_counter;
+};
 
-static int ai_write_chanlist(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_cmd *cmd);
+static const struct me4000_board me4000_boards[] = {
+	{
+		.name		= "ME-4650",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4650,
+		.ai_nchan	= 16,
+		.dio_nchan	= 32,
+	}, {
+		.name		= "ME-4660",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4660,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4660i",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4660I,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4660s",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4660S,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ai_sh_nchan	= 8,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4660is",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4660IS,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ai_sh_nchan	= 8,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4670",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4670,
+		.ao_nchan	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4670i",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4670I,
+		.ao_nchan	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4670s",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4670S,
+		.ao_nchan	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ai_sh_nchan	= 8,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4670is",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4670IS,
+		.ao_nchan	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ai_sh_nchan	= 8,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4680",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4680,
+		.ao_nchan	= 4,
+		.ao_fifo	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4680i",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4680I,
+		.ao_nchan	= 4,
+		.ao_fifo	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4680s",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4680S,
+		.ao_nchan	= 4,
+		.ao_fifo	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ai_sh_nchan	= 8,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	}, {
+		.name		= "ME-4680is",
+		.device_id	= PCI_DEVICE_ID_MEILHAUS_ME4680IS,
+		.ao_nchan	= 4,
+		.ao_fifo	= 4,
+		.ai_nchan	= 32,
+		.ai_diff_nchan	= 16,
+		.ai_sh_nchan	= 8,
+		.ex_trig_analog	= 1,
+		.dio_nchan	= 32,
+		.has_counter	= 1,
+	},
+};
 
 static const struct comedi_lrange me4000_ai_range = {
 	4,
@@ -114,380 +363,6 @@ static const struct comedi_lrange me4000_ai_range = {
 	 }
 };
 
-static const struct comedi_lrange me4000_ao_range = {
-	1,
-	{
-	 BIP_RANGE(10),
-	 }
-};
-
-static int me4000_probe(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct pci_dev *pci_device = NULL;
-	int result, i;
-	struct me4000_board *board;
-
-	/* Allocate private memory */
-	if (alloc_private(dev, sizeof(struct me4000_info)) < 0)
-		return -ENOMEM;
-
-	/*
-	 * Probe the device to determine what device in the series it is.
-	 */
-	for_each_pci_dev(pci_device) {
-		if (pci_device->vendor == PCI_VENDOR_ID_MEILHAUS) {
-			for (i = 0; i < ME4000_BOARD_VERSIONS; i++) {
-				if (me4000_boards[i].device_id ==
-				    pci_device->device) {
-					/*
-					 * Was a particular
-					 * bus/slot requested?
-					 */
-					if ((it->options[0] != 0)
-					    || (it->options[1] != 0)) {
-						/*
-						 * Are we on the wrong
-						 * bus/slot?
-						 */
-						if (pci_device->bus->number !=
-						    it->options[0]
-						    ||
-						    PCI_SLOT(pci_device->devfn)
-						    != it->options[1]) {
-							continue;
-						}
-					}
-					dev->board_ptr = me4000_boards + i;
-					board =
-					    (struct me4000_board *)
-					    dev->board_ptr;
-					info->pci_dev_p = pci_device;
-					goto found;
-				}
-			}
-		}
-	}
-
-	printk(KERN_ERR
-	       "comedi%d: me4000: me4000_probe(): "
-	       "No supported board found (req. bus/slot : %d/%d)\n",
-	       dev->minor, it->options[0], it->options[1]);
-	return -ENODEV;
-
-found:
-
-	printk(KERN_INFO
-	       "comedi%d: me4000: me4000_probe(): "
-	       "Found %s at PCI bus %d, slot %d\n",
-	       dev->minor, me4000_boards[i].name, pci_device->bus->number,
-	       PCI_SLOT(pci_device->devfn));
-
-	/* Set data in device structure */
-	dev->board_name = board->name;
-
-	/* Enable PCI device and request regions */
-	result = comedi_pci_enable(pci_device, dev->board_name);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): Cannot enable PCI "
-		       "device and request I/O regions\n", dev->minor);
-		return result;
-	}
-
-	/* Get the PCI base registers */
-	result = get_registers(dev, pci_device);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Cannot get registers\n", dev->minor);
-		return result;
-	}
-	/* Initialize board info */
-	result = init_board_info(dev, pci_device);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Cannot init baord info\n", dev->minor);
-		return result;
-	}
-
-	/* Init analog output context */
-	result = init_ao_context(dev);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Cannot init ao context\n", dev->minor);
-		return result;
-	}
-
-	/* Init analog input context */
-	result = init_ai_context(dev);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Cannot init ai context\n", dev->minor);
-		return result;
-	}
-
-	/* Init digital I/O context */
-	result = init_dio_context(dev);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Cannot init dio context\n", dev->minor);
-		return result;
-	}
-
-	/* Init counter context */
-	result = init_cnt_context(dev);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Cannot init cnt context\n", dev->minor);
-		return result;
-	}
-
-	/* Download the xilinx firmware */
-	result = xilinx_download(dev);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): "
-		       "Can't download firmware\n", dev->minor);
-		return result;
-	}
-
-	/* Make a hardware reset */
-	result = reset_board(dev);
-	if (result) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_probe(): Can't reset board\n",
-		       dev->minor);
-		return result;
-	}
-
-	return 0;
-}
-
-static int get_registers(struct comedi_device *dev, struct pci_dev *pci_dev_p)
-{
-    /*--------------------------- plx regbase -------------------------------*/
-
-	info->plx_regbase = pci_resource_start(pci_dev_p, 1);
-	if (info->plx_regbase == 0) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: get_registers(): "
-		       "PCI base address 1 is not available\n", dev->minor);
-		return -ENODEV;
-	}
-	info->plx_regbase_size = pci_resource_len(pci_dev_p, 1);
-
-    /*--------------------------- me4000 regbase ----------------------------*/
-
-	info->me4000_regbase = pci_resource_start(pci_dev_p, 2);
-	if (info->me4000_regbase == 0) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: get_registers(): "
-		       "PCI base address 2 is not available\n", dev->minor);
-		return -ENODEV;
-	}
-	info->me4000_regbase_size = pci_resource_len(pci_dev_p, 2);
-
-    /*--------------------------- timer regbase ------------------------------*/
-
-	info->timer_regbase = pci_resource_start(pci_dev_p, 3);
-	if (info->timer_regbase == 0) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: get_registers(): "
-		       "PCI base address 3 is not available\n", dev->minor);
-		return -ENODEV;
-	}
-	info->timer_regbase_size = pci_resource_len(pci_dev_p, 3);
-
-    /*--------------------------- program regbase ----------------------------*/
-
-	info->program_regbase = pci_resource_start(pci_dev_p, 5);
-	if (info->program_regbase == 0) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: get_registers(): "
-		       "PCI base address 5 is not available\n", dev->minor);
-		return -ENODEV;
-	}
-	info->program_regbase_size = pci_resource_len(pci_dev_p, 5);
-
-	return 0;
-}
-
-static int init_board_info(struct comedi_device *dev, struct pci_dev *pci_dev_p)
-{
-	int result;
-
-	/* Init spin locks */
-	/* spin_lock_init(&info->preload_lock); */
-	/* spin_lock_init(&info->ai_ctrl_lock); */
-
-	/* Get the serial number */
-	result = pci_read_config_dword(pci_dev_p, 0x2C, &info->serial_no);
-	if (result != PCIBIOS_SUCCESSFUL)
-		return result;
-
-	/* Get the hardware revision */
-	result = pci_read_config_byte(pci_dev_p, 0x08, &info->hw_revision);
-	if (result != PCIBIOS_SUCCESSFUL)
-		return result;
-
-	/* Get the vendor id */
-	info->vendor_id = pci_dev_p->vendor;
-
-	/* Get the device id */
-	info->device_id = pci_dev_p->device;
-
-	/* Get the irq assigned to the board */
-	info->irq = pci_dev_p->irq;
-
-	return 0;
-}
-
-static int init_ao_context(struct comedi_device *dev)
-{
-	int i;
-
-	for (i = 0; i < thisboard->ao.count; i++) {
-		/* spin_lock_init(&info->ao_context[i].use_lock); */
-		info->ao_context[i].irq = info->irq;
-
-		switch (i) {
-		case 0:
-			info->ao_context[i].ctrl_reg =
-			    info->me4000_regbase + ME4000_AO_00_CTRL_REG;
-			info->ao_context[i].status_reg =
-			    info->me4000_regbase + ME4000_AO_00_STATUS_REG;
-			info->ao_context[i].fifo_reg =
-			    info->me4000_regbase + ME4000_AO_00_FIFO_REG;
-			info->ao_context[i].single_reg =
-			    info->me4000_regbase + ME4000_AO_00_SINGLE_REG;
-			info->ao_context[i].timer_reg =
-			    info->me4000_regbase + ME4000_AO_00_TIMER_REG;
-			info->ao_context[i].irq_status_reg =
-			    info->me4000_regbase + ME4000_IRQ_STATUS_REG;
-			info->ao_context[i].preload_reg =
-			    info->me4000_regbase + ME4000_AO_LOADSETREG_XX;
-			break;
-		case 1:
-			info->ao_context[i].ctrl_reg =
-			    info->me4000_regbase + ME4000_AO_01_CTRL_REG;
-			info->ao_context[i].status_reg =
-			    info->me4000_regbase + ME4000_AO_01_STATUS_REG;
-			info->ao_context[i].fifo_reg =
-			    info->me4000_regbase + ME4000_AO_01_FIFO_REG;
-			info->ao_context[i].single_reg =
-			    info->me4000_regbase + ME4000_AO_01_SINGLE_REG;
-			info->ao_context[i].timer_reg =
-			    info->me4000_regbase + ME4000_AO_01_TIMER_REG;
-			info->ao_context[i].irq_status_reg =
-			    info->me4000_regbase + ME4000_IRQ_STATUS_REG;
-			info->ao_context[i].preload_reg =
-			    info->me4000_regbase + ME4000_AO_LOADSETREG_XX;
-			break;
-		case 2:
-			info->ao_context[i].ctrl_reg =
-			    info->me4000_regbase + ME4000_AO_02_CTRL_REG;
-			info->ao_context[i].status_reg =
-			    info->me4000_regbase + ME4000_AO_02_STATUS_REG;
-			info->ao_context[i].fifo_reg =
-			    info->me4000_regbase + ME4000_AO_02_FIFO_REG;
-			info->ao_context[i].single_reg =
-			    info->me4000_regbase + ME4000_AO_02_SINGLE_REG;
-			info->ao_context[i].timer_reg =
-			    info->me4000_regbase + ME4000_AO_02_TIMER_REG;
-			info->ao_context[i].irq_status_reg =
-			    info->me4000_regbase + ME4000_IRQ_STATUS_REG;
-			info->ao_context[i].preload_reg =
-			    info->me4000_regbase + ME4000_AO_LOADSETREG_XX;
-			break;
-		case 3:
-			info->ao_context[i].ctrl_reg =
-			    info->me4000_regbase + ME4000_AO_03_CTRL_REG;
-			info->ao_context[i].status_reg =
-			    info->me4000_regbase + ME4000_AO_03_STATUS_REG;
-			info->ao_context[i].fifo_reg =
-			    info->me4000_regbase + ME4000_AO_03_FIFO_REG;
-			info->ao_context[i].single_reg =
-			    info->me4000_regbase + ME4000_AO_03_SINGLE_REG;
-			info->ao_context[i].timer_reg =
-			    info->me4000_regbase + ME4000_AO_03_TIMER_REG;
-			info->ao_context[i].irq_status_reg =
-			    info->me4000_regbase + ME4000_IRQ_STATUS_REG;
-			info->ao_context[i].preload_reg =
-			    info->me4000_regbase + ME4000_AO_LOADSETREG_XX;
-			break;
-		default:
-			break;
-		}
-	}
-
-	return 0;
-}
-
-static int init_ai_context(struct comedi_device *dev)
-{
-	info->ai_context.irq = info->irq;
-
-	info->ai_context.ctrl_reg = info->me4000_regbase + ME4000_AI_CTRL_REG;
-	info->ai_context.status_reg =
-	    info->me4000_regbase + ME4000_AI_STATUS_REG;
-	info->ai_context.channel_list_reg =
-	    info->me4000_regbase + ME4000_AI_CHANNEL_LIST_REG;
-	info->ai_context.data_reg = info->me4000_regbase + ME4000_AI_DATA_REG;
-	info->ai_context.chan_timer_reg =
-	    info->me4000_regbase + ME4000_AI_CHAN_TIMER_REG;
-	info->ai_context.chan_pre_timer_reg =
-	    info->me4000_regbase + ME4000_AI_CHAN_PRE_TIMER_REG;
-	info->ai_context.scan_timer_low_reg =
-	    info->me4000_regbase + ME4000_AI_SCAN_TIMER_LOW_REG;
-	info->ai_context.scan_timer_high_reg =
-	    info->me4000_regbase + ME4000_AI_SCAN_TIMER_HIGH_REG;
-	info->ai_context.scan_pre_timer_low_reg =
-	    info->me4000_regbase + ME4000_AI_SCAN_PRE_TIMER_LOW_REG;
-	info->ai_context.scan_pre_timer_high_reg =
-	    info->me4000_regbase + ME4000_AI_SCAN_PRE_TIMER_HIGH_REG;
-	info->ai_context.start_reg = info->me4000_regbase + ME4000_AI_START_REG;
-	info->ai_context.irq_status_reg =
-	    info->me4000_regbase + ME4000_IRQ_STATUS_REG;
-	info->ai_context.sample_counter_reg =
-	    info->me4000_regbase + ME4000_AI_SAMPLE_COUNTER_REG;
-
-	return 0;
-}
-
-static int init_dio_context(struct comedi_device *dev)
-{
-	info->dio_context.dir_reg = info->me4000_regbase + ME4000_DIO_DIR_REG;
-	info->dio_context.ctrl_reg = info->me4000_regbase + ME4000_DIO_CTRL_REG;
-	info->dio_context.port_0_reg =
-	    info->me4000_regbase + ME4000_DIO_PORT_0_REG;
-	info->dio_context.port_1_reg =
-	    info->me4000_regbase + ME4000_DIO_PORT_1_REG;
-	info->dio_context.port_2_reg =
-	    info->me4000_regbase + ME4000_DIO_PORT_2_REG;
-	info->dio_context.port_3_reg =
-	    info->me4000_regbase + ME4000_DIO_PORT_3_REG;
-
-	return 0;
-}
-
-static int init_cnt_context(struct comedi_device *dev)
-{
-	info->cnt_context.ctrl_reg = info->timer_regbase + ME4000_CNT_CTRL_REG;
-	info->cnt_context.counter_0_reg =
-	    info->timer_regbase + ME4000_CNT_COUNTER_0_REG;
-	info->cnt_context.counter_1_reg =
-	    info->timer_regbase + ME4000_CNT_COUNTER_1_REG;
-	info->cnt_context.counter_2_reg =
-	    info->timer_regbase + ME4000_CNT_COUNTER_2_REG;
-
-	return 0;
-}
-
 #define FIRMWARE_NOT_AVAILABLE 1
 #if FIRMWARE_NOT_AVAILABLE
 extern unsigned char *xilinx_firm;
@@ -495,11 +370,17 @@ extern unsigned char *xilinx_firm;
 
 static int xilinx_download(struct comedi_device *dev)
 {
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct me4000_info *info = dev->private;
+	unsigned long xilinx_iobase = pci_resource_start(pcidev, 5);
 	u32 value = 0;
 	wait_queue_head_t queue;
 	int idx = 0;
 	int size = 0;
 
+	if (!xilinx_iobase)
+		return -ENODEV;
+
 	init_waitqueue_head(&queue);
 
 	/*
@@ -514,14 +395,12 @@ static int xilinx_download(struct comedi_device *dev)
 	outl(value, info->plx_regbase + PLX_ICR);
 
 	/* Init Xilinx with CS1 */
-	inb(info->program_regbase + 0xC8);
+	inb(xilinx_iobase + 0xC8);
 
 	/* Wait until /INIT pin is set */
 	udelay(20);
 	if (!(inl(info->plx_regbase + PLX_INTCSR) & 0x20)) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: xilinx_download(): "
-		       "Can't init Xilinx\n", dev->minor);
+		dev_err(dev->class_dev, "Can't init Xilinx\n");
 		return -EIO;
 	}
 
@@ -530,8 +409,8 @@ static int xilinx_download(struct comedi_device *dev)
 	value &= ~0x100;
 	outl(value, info->plx_regbase + PLX_ICR);
 	if (FIRMWARE_NOT_AVAILABLE) {
-		comedi_error(dev, "xilinx firmware unavailable "
-			     "due to licensing, aborting");
+		dev_err(dev->class_dev,
+			"xilinx firmware unavailable due to licensing, aborting");
 		return -EIO;
 	} else {
 		/* Download Xilinx firmware */
@@ -540,15 +419,14 @@ static int xilinx_download(struct comedi_device *dev)
 		udelay(10);
 
 		for (idx = 0; idx < size; idx++) {
-			outb(xilinx_firm[16 + idx], info->program_regbase);
+			outb(xilinx_firm[16 + idx], xilinx_iobase);
 			udelay(10);
 
 			/* Check if BUSY flag is low */
 			if (inl(info->plx_regbase + PLX_ICR) & 0x20) {
-				printk(KERN_ERR
-				       "comedi%d: me4000: xilinx_download(): "
-				       "Xilinx is still busy (idx = %d)\n",
-				       dev->minor, idx);
+				dev_err(dev->class_dev,
+					"Xilinx is still busy (idx = %d)\n",
+					idx);
 				return -EIO;
 			}
 		}
@@ -557,12 +435,8 @@ static int xilinx_download(struct comedi_device *dev)
 	/* If done flag is high download was successful */
 	if (inl(info->plx_regbase + PLX_ICR) & 0x4) {
 	} else {
-		printk(KERN_ERR
-		       "comedi%d: me4000: xilinx_download(): "
-		       "DONE flag is not set\n", dev->minor);
-		printk(KERN_ERR
-		       "comedi%d: me4000: xilinx_download(): "
-		       "Download not successful\n", dev->minor);
+		dev_err(dev->class_dev, "DONE flag is not set\n");
+		dev_err(dev->class_dev, "Download not successful\n");
 		return -EIO;
 	}
 
@@ -574,52 +448,45 @@ static int xilinx_download(struct comedi_device *dev)
 	return 0;
 }
 
-static int reset_board(struct comedi_device *dev)
+static void me4000_reset(struct comedi_device *dev)
 {
-	unsigned long icr;
+	struct me4000_info *info = dev->private;
+	unsigned long val;
+	int chan;
 
 	/* Make a hardware reset */
-	icr = inl(info->plx_regbase + PLX_ICR);
-	icr |= 0x40000000;
-	outl(icr, info->plx_regbase + PLX_ICR);
-	icr &= ~0x40000000;
-	outl(icr, info->plx_regbase + PLX_ICR);
+	val = inl(info->plx_regbase + PLX_ICR);
+	val |= 0x40000000;
+	outl(val, info->plx_regbase + PLX_ICR);
+	val &= ~0x40000000;
+	outl(val , info->plx_regbase + PLX_ICR);
 
 	/* 0x8000 to the DACs means an output voltage of 0V */
-	outl(0x8000, info->me4000_regbase + ME4000_AO_00_SINGLE_REG);
-	outl(0x8000, info->me4000_regbase + ME4000_AO_01_SINGLE_REG);
-	outl(0x8000, info->me4000_regbase + ME4000_AO_02_SINGLE_REG);
-	outl(0x8000, info->me4000_regbase + ME4000_AO_03_SINGLE_REG);
+	for (chan = 0; chan < 4; chan++)
+		outl(0x8000, dev->iobase + ME4000_AO_SINGLE_REG(chan));
 
 	/* Set both stop bits in the analog input control register */
 	outl(ME4000_AI_CTRL_BIT_IMMEDIATE_STOP | ME4000_AI_CTRL_BIT_STOP,
-		info->me4000_regbase + ME4000_AI_CTRL_REG);
+		dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Set both stop bits in the analog output control register */
-	outl(ME4000_AO_CTRL_BIT_IMMEDIATE_STOP | ME4000_AO_CTRL_BIT_STOP,
-		info->me4000_regbase + ME4000_AO_00_CTRL_REG);
-	outl(ME4000_AO_CTRL_BIT_IMMEDIATE_STOP | ME4000_AO_CTRL_BIT_STOP,
-		info->me4000_regbase + ME4000_AO_01_CTRL_REG);
-	outl(ME4000_AO_CTRL_BIT_IMMEDIATE_STOP | ME4000_AO_CTRL_BIT_STOP,
-		info->me4000_regbase + ME4000_AO_02_CTRL_REG);
-	outl(ME4000_AO_CTRL_BIT_IMMEDIATE_STOP | ME4000_AO_CTRL_BIT_STOP,
-		info->me4000_regbase + ME4000_AO_03_CTRL_REG);
+	val = ME4000_AO_CTRL_BIT_IMMEDIATE_STOP | ME4000_AO_CTRL_BIT_STOP;
+	for (chan = 0; chan < 4; chan++)
+		outl(val, dev->iobase + ME4000_AO_CTRL_REG(chan));
 
 	/* Enable interrupts on the PLX */
 	outl(0x43, info->plx_regbase + PLX_INTCSR);
 
 	/* Set the adustment register for AO demux */
 	outl(ME4000_AO_DEMUX_ADJUST_VALUE,
-		    info->me4000_regbase + ME4000_AO_DEMUX_ADJUST_REG);
+		    dev->iobase + ME4000_AO_DEMUX_ADJUST_REG);
 
 	/*
 	 * Set digital I/O direction for port 0
 	 * to output on isolated versions
 	 */
-	if (!(inl(info->me4000_regbase + ME4000_DIO_DIR_REG) & 0x1))
-		outl(0x1, info->me4000_regbase + ME4000_DIO_CTRL_REG);
-
-	return 0;
+	if (!(inl(dev->iobase + ME4000_DIO_DIR_REG) & 0x1))
+		outl(0x1, dev->iobase + ME4000_DIO_CTRL_REG);
 }
 
 /*=============================================================================
@@ -630,7 +497,7 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 			       struct comedi_subdevice *subdevice,
 			       struct comedi_insn *insn, unsigned int *data)
 {
-
+	const struct me4000_board *thisboard = comedi_board(dev);
 	int chan = CR_CHAN(insn->chanspec);
 	int rang = CR_RANGE(insn->chanspec);
 	int aref = CR_AREF(insn->chanspec);
@@ -642,9 +509,8 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 	if (insn->n == 0) {
 		return 0;
 	} else if (insn->n > 1) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_insn_read(): "
-		       "Invalid instruction length %d\n", dev->minor, insn->n);
+		dev_err(dev->class_dev, "Invalid instruction length %d\n",
+			insn->n);
 		return -EINVAL;
 	}
 
@@ -662,19 +528,16 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 		entry |= ME4000_AI_LIST_RANGE_BIPOLAR_10;
 		break;
 	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_insn_read(): "
-		       "Invalid range specified\n", dev->minor);
+		dev_err(dev->class_dev, "Invalid range specified\n");
 		return -EINVAL;
 	}
 
 	switch (aref) {
 	case AREF_GROUND:
 	case AREF_COMMON:
-		if (chan >= thisboard->ai.count) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_insn_read(): "
-			       "Analog input is not available\n", dev->minor);
+		if (chan >= thisboard->ai_nchan) {
+			dev_err(dev->class_dev,
+				"Analog input is not available\n");
 			return -EINVAL;
 		}
 		entry |= ME4000_AI_LIST_INPUT_SINGLE_ENDED | chan;
@@ -682,68 +545,61 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 
 	case AREF_DIFF:
 		if (rang == 0 || rang == 1) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_insn_read(): "
-			       "Range must be bipolar when aref = diff\n",
-			       dev->minor);
+			dev_err(dev->class_dev,
+				"Range must be bipolar when aref = diff\n");
 			return -EINVAL;
 		}
 
-		if (chan >= thisboard->ai.diff_count) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_insn_read(): "
-			       "Analog input is not available\n", dev->minor);
+		if (chan >= thisboard->ai_diff_nchan) {
+			dev_err(dev->class_dev,
+				"Analog input is not available\n");
 			return -EINVAL;
 		}
 		entry |= ME4000_AI_LIST_INPUT_DIFFERENTIAL | chan;
 		break;
 	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_insn_read(): "
-		       "Invalid aref specified\n", dev->minor);
+		dev_err(dev->class_dev, "Invalid aref specified\n");
 		return -EINVAL;
 	}
 
 	entry |= ME4000_AI_LIST_LAST_ENTRY;
 
 	/* Clear channel list, data fifo and both stop bits */
-	tmp = inl(info->ai_context.ctrl_reg);
+	tmp = inl(dev->iobase + ME4000_AI_CTRL_REG);
 	tmp &= ~(ME4000_AI_CTRL_BIT_CHANNEL_FIFO |
 		 ME4000_AI_CTRL_BIT_DATA_FIFO |
 		 ME4000_AI_CTRL_BIT_STOP | ME4000_AI_CTRL_BIT_IMMEDIATE_STOP);
-	outl(tmp, info->ai_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Set the acquisition mode to single */
 	tmp &= ~(ME4000_AI_CTRL_BIT_MODE_0 | ME4000_AI_CTRL_BIT_MODE_1 |
 		 ME4000_AI_CTRL_BIT_MODE_2);
-	outl(tmp, info->ai_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Enable channel list and data fifo */
 	tmp |= ME4000_AI_CTRL_BIT_CHANNEL_FIFO | ME4000_AI_CTRL_BIT_DATA_FIFO;
-	outl(tmp, info->ai_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Generate channel list entry */
-	outl(entry, info->ai_context.channel_list_reg);
+	outl(entry, dev->iobase + ME4000_AI_CHANNEL_LIST_REG);
 
 	/* Set the timer to maximum sample rate */
-	outl(ME4000_AI_MIN_TICKS, info->ai_context.chan_timer_reg);
-	outl(ME4000_AI_MIN_TICKS, info->ai_context.chan_pre_timer_reg);
+	outl(ME4000_AI_MIN_TICKS, dev->iobase + ME4000_AI_CHAN_TIMER_REG);
+	outl(ME4000_AI_MIN_TICKS, dev->iobase + ME4000_AI_CHAN_PRE_TIMER_REG);
 
 	/* Start conversion by dummy read */
-	inl(info->ai_context.start_reg);
+	inl(dev->iobase + ME4000_AI_START_REG);
 
 	/* Wait until ready */
 	udelay(10);
-	if (!(inl(info->ai_context.status_reg) &
+	if (!(inl(dev->iobase + ME4000_AI_STATUS_REG) &
 	     ME4000_AI_STATUS_BIT_EF_DATA)) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_insn_read(): "
-		       "Value not available after wait\n", dev->minor);
+		dev_err(dev->class_dev, "Value not available after wait\n");
 		return -EIO;
 	}
 
 	/* Read value from data fifo */
-	lval = inl(info->ai_context.data_reg) & 0xFFFF;
+	lval = inl(dev->iobase + ME4000_AI_DATA_REG) & 0xFFFF;
 	data[0] = lval ^ 0x8000;
 
 	return 1;
@@ -755,12 +611,12 @@ static int me4000_ai_cancel(struct comedi_device *dev,
 	unsigned long tmp;
 
 	/* Stop any running conversion */
-	tmp = inl(info->ai_context.ctrl_reg);
+	tmp = inl(dev->iobase + ME4000_AI_CTRL_REG);
 	tmp &= ~(ME4000_AI_CTRL_BIT_STOP | ME4000_AI_CTRL_BIT_IMMEDIATE_STOP);
-	outl(tmp, info->ai_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Clear the control register */
-	outl(0x0, info->ai_context.ctrl_reg);
+	outl(0x0, dev->iobase + ME4000_AI_CTRL_REG);
 
 	return 0;
 }
@@ -768,30 +624,25 @@ static int me4000_ai_cancel(struct comedi_device *dev,
 static int ai_check_chanlist(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
+	const struct me4000_board *thisboard = comedi_board(dev);
 	int aref;
 	int i;
 
 	/* Check whether a channel list is available */
 	if (!cmd->chanlist_len) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: ai_check_chanlist(): "
-		       "No channel list available\n", dev->minor);
+		dev_err(dev->class_dev, "No channel list available\n");
 		return -EINVAL;
 	}
 
 	/* Check the channel list size */
 	if (cmd->chanlist_len > ME4000_AI_CHANNEL_LIST_COUNT) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: ai_check_chanlist(): "
-		       "Channel list is to large\n", dev->minor);
+		dev_err(dev->class_dev, "Channel list is to large\n");
 		return -EINVAL;
 	}
 
 	/* Check the pointer */
 	if (!cmd->chanlist) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: ai_check_chanlist(): "
-		       "NULL pointer to channel list\n", dev->minor);
+		dev_err(dev->class_dev, "NULL pointer to channel list\n");
 		return -EFAULT;
 	}
 
@@ -799,10 +650,8 @@ static int ai_check_chanlist(struct comedi_device *dev,
 	aref = CR_AREF(cmd->chanlist[0]);
 	for (i = 0; i < cmd->chanlist_len; i++) {
 		if (CR_AREF(cmd->chanlist[i]) != aref) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: ai_check_chanlist(): "
-			       "Mode is not equal for all entries\n",
-			       dev->minor);
+			dev_err(dev->class_dev,
+				"Mode is not equal for all entries\n");
 			return -EINVAL;
 		}
 	}
@@ -811,19 +660,17 @@ static int ai_check_chanlist(struct comedi_device *dev,
 	if (aref == SDF_DIFF) {
 		for (i = 0; i < cmd->chanlist_len; i++) {
 			if (CR_CHAN(cmd->chanlist[i]) >=
-			    thisboard->ai.diff_count) {
-				printk(KERN_ERR
-				       "comedi%d: me4000: ai_check_chanlist():"
-				       " Channel number to high\n", dev->minor);
+			    thisboard->ai_diff_nchan) {
+				dev_err(dev->class_dev,
+					"Channel number to high\n");
 				return -EINVAL;
 			}
 		}
 	} else {
 		for (i = 0; i < cmd->chanlist_len; i++) {
-			if (CR_CHAN(cmd->chanlist[i]) >= thisboard->ai.count) {
-				printk(KERN_ERR
-				       "comedi%d: me4000: ai_check_chanlist(): "
-				       "Channel number to high\n", dev->minor);
+			if (CR_CHAN(cmd->chanlist[i]) >= thisboard->ai_nchan) {
+				dev_err(dev->class_dev,
+					"Channel number to high\n");
 				return -EINVAL;
 			}
 		}
@@ -834,11 +681,8 @@ static int ai_check_chanlist(struct comedi_device *dev,
 		for (i = 0; i < cmd->chanlist_len; i++) {
 			if (CR_RANGE(cmd->chanlist[i]) != 1 &&
 			    CR_RANGE(cmd->chanlist[i]) != 2) {
-				printk(KERN_ERR
-				       "comedi%d: me4000: ai_check_chanlist(): "
-				       "Bipolar is not selected in "
-				       "differential mode\n",
-				       dev->minor);
+				dev_err(dev->class_dev,
+				       "Bipolar is not selected in differential mode\n");
 				return -EINVAL;
 			}
 		}
@@ -906,16 +750,52 @@ static void ai_write_timer(struct comedi_device *dev,
 			   unsigned int init_ticks,
 			   unsigned int scan_ticks, unsigned int chan_ticks)
 {
-	outl(init_ticks - 1, info->ai_context.scan_pre_timer_low_reg);
-	outl(0x0, info->ai_context.scan_pre_timer_high_reg);
+	outl(init_ticks - 1, dev->iobase + ME4000_AI_SCAN_PRE_TIMER_LOW_REG);
+	outl(0x0, dev->iobase + ME4000_AI_SCAN_PRE_TIMER_HIGH_REG);
 
 	if (scan_ticks) {
-		outl(scan_ticks - 1, info->ai_context.scan_timer_low_reg);
-		outl(0x0, info->ai_context.scan_timer_high_reg);
+		outl(scan_ticks - 1, dev->iobase + ME4000_AI_SCAN_TIMER_LOW_REG);
+		outl(0x0, dev->iobase + ME4000_AI_SCAN_TIMER_HIGH_REG);
 	}
 
-	outl(chan_ticks - 1, info->ai_context.chan_pre_timer_reg);
-	outl(chan_ticks - 1, info->ai_context.chan_timer_reg);
+	outl(chan_ticks - 1, dev->iobase + ME4000_AI_CHAN_PRE_TIMER_REG);
+	outl(chan_ticks - 1, dev->iobase + ME4000_AI_CHAN_TIMER_REG);
+}
+
+static int ai_write_chanlist(struct comedi_device *dev,
+			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
+{
+	unsigned int entry;
+	unsigned int chan;
+	unsigned int rang;
+	unsigned int aref;
+	int i;
+
+	for (i = 0; i < cmd->chanlist_len; i++) {
+		chan = CR_CHAN(cmd->chanlist[i]);
+		rang = CR_RANGE(cmd->chanlist[i]);
+		aref = CR_AREF(cmd->chanlist[i]);
+
+		entry = chan;
+
+		if (rang == 0)
+			entry |= ME4000_AI_LIST_RANGE_UNIPOLAR_2_5;
+		else if (rang == 1)
+			entry |= ME4000_AI_LIST_RANGE_UNIPOLAR_10;
+		else if (rang == 2)
+			entry |= ME4000_AI_LIST_RANGE_BIPOLAR_2_5;
+		else
+			entry |= ME4000_AI_LIST_RANGE_BIPOLAR_10;
+
+		if (aref == SDF_DIFF)
+			entry |= ME4000_AI_LIST_INPUT_DIFFERENTIAL;
+		else
+			entry |= ME4000_AI_LIST_INPUT_SINGLE_ENDED;
+
+		outl(entry, dev->iobase + ME4000_AI_CHANNEL_LIST_REG);
+	}
+
+	return 0;
 }
 
 static int ai_prepare(struct comedi_device *dev,
@@ -931,7 +811,7 @@ static int ai_prepare(struct comedi_device *dev,
 	ai_write_timer(dev, init_ticks, scan_ticks, chan_ticks);
 
 	/* Reset control register */
-	outl(tmp, info->ai_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Start sources */
 	if ((cmd->start_src == TRIG_EXT &&
@@ -965,19 +845,19 @@ static int ai_prepare(struct comedi_device *dev,
 	/* Stop triggers */
 	if (cmd->stop_src == TRIG_COUNT) {
 		outl(cmd->chanlist_len * cmd->stop_arg,
-			    info->ai_context.sample_counter_reg);
+			    dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ | ME4000_AI_CTRL_BIT_SC_IRQ;
 	} else if (cmd->stop_src == TRIG_NONE &&
 		   cmd->scan_end_src == TRIG_COUNT) {
 		outl(cmd->scan_end_arg,
-			    info->ai_context.sample_counter_reg);
+			    dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ | ME4000_AI_CTRL_BIT_SC_IRQ;
 	} else {
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ;
 	}
 
 	/* Write the setup to the control register */
-	outl(tmp, info->ai_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Write the channel list */
 	ai_write_chanlist(dev, s, cmd);
@@ -985,42 +865,6 @@ static int ai_prepare(struct comedi_device *dev,
 	return 0;
 }
 
-static int ai_write_chanlist(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	unsigned int entry;
-	unsigned int chan;
-	unsigned int rang;
-	unsigned int aref;
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		chan = CR_CHAN(cmd->chanlist[i]);
-		rang = CR_RANGE(cmd->chanlist[i]);
-		aref = CR_AREF(cmd->chanlist[i]);
-
-		entry = chan;
-
-		if (rang == 0)
-			entry |= ME4000_AI_LIST_RANGE_UNIPOLAR_2_5;
-		else if (rang == 1)
-			entry |= ME4000_AI_LIST_RANGE_UNIPOLAR_10;
-		else if (rang == 2)
-			entry |= ME4000_AI_LIST_RANGE_BIPOLAR_2_5;
-		else
-			entry |= ME4000_AI_LIST_RANGE_BIPOLAR_10;
-
-		if (aref == SDF_DIFF)
-			entry |= ME4000_AI_LIST_INPUT_DIFFERENTIAL;
-		else
-			entry |= ME4000_AI_LIST_INPUT_SINGLE_ENDED;
-
-		outl(entry, info->ai_context.channel_list_reg);
-	}
-
-	return 0;
-}
-
 static int me4000_ai_do_cmd(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
@@ -1047,23 +891,11 @@ static int me4000_ai_do_cmd(struct comedi_device *dev,
 		return err;
 
 	/* Start acquistion by dummy read */
-	inl(info->ai_context.start_reg);
+	inl(dev->iobase + ME4000_AI_START_REG);
 
 	return 0;
 }
 
-/*
- * me4000_ai_do_cmd_test():
- *
- * The demo cmd.c in ./comedilib/demo specifies 6 return values:
- * - success
- * - invalid source
- * - source conflict
- * - invalid argument
- * - argument conflict
- * - invalid chanlist
- * So I tried to adopt this scheme.
- */
 static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_cmd *cmd)
@@ -1080,91 +912,29 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	/* Round the timer arguments */
 	ai_round_cmd_args(dev, s, cmd, &init_ticks, &scan_ticks, &chan_ticks);
 
-	/*
-	 * Stage 1. Check if the trigger sources are generally valid.
-	 */
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-	case TRIG_EXT:
-		break;
-	case TRIG_ANY:
-		cmd->start_src &= TRIG_NOW | TRIG_EXT;
-		err++;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid start source\n", dev->minor);
-		cmd->start_src = TRIG_NOW;
-		err++;
-	}
-	switch (cmd->scan_begin_src) {
-	case TRIG_FOLLOW:
-	case TRIG_TIMER:
-	case TRIG_EXT:
-		break;
-	case TRIG_ANY:
-		cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT;
-		err++;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid scan begin source\n", dev->minor);
-		cmd->scan_begin_src = TRIG_FOLLOW;
-		err++;
-	}
-	switch (cmd->convert_src) {
-	case TRIG_TIMER:
-	case TRIG_EXT:
-		break;
-	case TRIG_ANY:
-		cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-		err++;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid convert source\n", dev->minor);
-		cmd->convert_src = TRIG_TIMER;
-		err++;
-	}
-	switch (cmd->scan_end_src) {
-	case TRIG_NONE:
-	case TRIG_COUNT:
-		break;
-	case TRIG_ANY:
-		cmd->scan_end_src &= TRIG_NONE | TRIG_COUNT;
-		err++;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid scan end source\n", dev->minor);
-		cmd->scan_end_src = TRIG_NONE;
-		err++;
-	}
-	switch (cmd->stop_src) {
-	case TRIG_NONE:
-	case TRIG_COUNT:
-		break;
-	case TRIG_ANY:
-		cmd->stop_src &= TRIG_NONE | TRIG_COUNT;
-		err++;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid stop source\n", dev->minor);
-		cmd->stop_src = TRIG_NONE;
-		err++;
-	}
+	/* Step 1 : check if triggers are trivially valid */
+
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src,
+					TRIG_NONE | TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE | TRIG_COUNT);
+
 	if (err)
 		return 1;
 
-	/*
-	 * Stage 2. Check for trigger source conflicts.
-	 */
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_end_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
+
 	if (cmd->start_src == TRIG_NOW &&
 	    cmd->scan_begin_src == TRIG_TIMER &&
 	    cmd->convert_src == TRIG_TIMER) {
@@ -1184,13 +954,7 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 		   cmd->scan_begin_src == TRIG_EXT &&
 		   cmd->convert_src == TRIG_EXT) {
 	} else {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid start trigger combination\n", dev->minor);
-		cmd->start_src = TRIG_NOW;
-		cmd->scan_begin_src = TRIG_FOLLOW;
-		cmd->convert_src = TRIG_TIMER;
-		err++;
+		err |= -EINVAL;
 	}
 
 	if (cmd->stop_src == TRIG_NONE && cmd->scan_end_src == TRIG_NONE) {
@@ -1201,13 +965,9 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	} else if (cmd->stop_src == TRIG_COUNT &&
 		   cmd->scan_end_src == TRIG_COUNT) {
 	} else {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Invalid stop trigger combination\n", dev->minor);
-		cmd->stop_src = TRIG_NONE;
-		cmd->scan_end_src = TRIG_NONE;
-		err++;
+		err |= -EINVAL;
 	}
+
 	if (err)
 		return 2;
 
@@ -1215,30 +975,22 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	 * Stage 3. Check if arguments are generally valid.
 	 */
 	if (cmd->chanlist_len < 1) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "No channel list\n", dev->minor);
+		dev_err(dev->class_dev, "No channel list\n");
 		cmd->chanlist_len = 1;
 		err++;
 	}
 	if (init_ticks < 66) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Start arg to low\n", dev->minor);
+		dev_err(dev->class_dev, "Start arg to low\n");
 		cmd->start_arg = 2000;
 		err++;
 	}
 	if (scan_ticks && scan_ticks < 67) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Scan begin arg to low\n", dev->minor);
+		dev_err(dev->class_dev, "Scan begin arg to low\n");
 		cmd->scan_begin_arg = 2031;
 		err++;
 	}
 	if (chan_ticks < 66) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-		       "Convert arg to low\n", dev->minor);
+		dev_err(dev->class_dev, "Convert arg to low\n");
 		cmd->convert_arg = 2000;
 		err++;
 	}
@@ -1255,23 +1007,17 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid start arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid start arg\n");
 			cmd->start_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (chan_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid convert arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid convert arg\n");
 			cmd->convert_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (scan_ticks <= cmd->chanlist_len * chan_ticks) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid scan end arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid scan end arg\n");
 
 			/*  At least one tick more */
 			cmd->scan_end_arg = 2000 * cmd->chanlist_len + 31;
@@ -1283,16 +1029,12 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid start arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid start arg\n");
 			cmd->start_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (chan_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid convert arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid convert arg\n");
 			cmd->convert_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
@@ -1302,23 +1044,17 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid start arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid start arg\n");
 			cmd->start_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (chan_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid convert arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid convert arg\n");
 			cmd->convert_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (scan_ticks <= cmd->chanlist_len * chan_ticks) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid scan end arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid scan end arg\n");
 
 			/*  At least one tick more */
 			cmd->scan_end_arg = 2000 * cmd->chanlist_len + 31;
@@ -1330,16 +1066,12 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid start arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid start arg\n");
 			cmd->start_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (chan_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid convert arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid convert arg\n");
 			cmd->convert_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
@@ -1349,16 +1081,12 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid start arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid start arg\n");
 			cmd->start_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 		if (chan_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid convert arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid convert arg\n");
 			cmd->convert_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
@@ -1368,27 +1096,21 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid start arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid start arg\n");
 			cmd->start_arg = 2000;	/*  66 ticks at least */
 			err++;
 		}
 	}
 	if (cmd->stop_src == TRIG_COUNT) {
 		if (cmd->stop_arg == 0) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid stop arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid stop arg\n");
 			cmd->stop_arg = 1;
 			err++;
 		}
 	}
 	if (cmd->scan_end_src == TRIG_COUNT) {
 		if (cmd->scan_end_arg == 0) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_do_cmd_test(): "
-			       "Invalid scan end arg\n", dev->minor);
+			dev_err(dev->class_dev, "Invalid scan end arg\n");
 			cmd->scan_end_arg = 1;
 			err++;
 		}
@@ -1410,8 +1132,7 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 {
 	unsigned int tmp;
 	struct comedi_device *dev = dev_id;
-	struct comedi_subdevice *s = dev->subdevices;
-	struct me4000_ai_context *ai_context = &info->ai_context;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int i;
 	int c = 0;
 	long lval;
@@ -1423,17 +1144,15 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 	s->async->events = 0;
 
 	/* Check if irq number is right */
-	if (irq != ai_context->irq) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ai_isr(): "
-		       "Incorrect interrupt num: %d\n", dev->minor, irq);
+	if (irq != dev->irq) {
+		dev_err(dev->class_dev, "Incorrect interrupt num: %d\n", irq);
 		return IRQ_HANDLED;
 	}
 
-	if (inl(ai_context->irq_status_reg) &
+	if (inl(dev->iobase + ME4000_IRQ_STATUS_REG) &
 	    ME4000_IRQ_STATUS_BIT_AI_HF) {
 		/* Read status register to find out what happened */
-		tmp = inl(ai_context->ctrl_reg);
+		tmp = inl(dev->iobase + ME4000_AI_CTRL_REG);
 
 		if (!(tmp & ME4000_AI_STATUS_BIT_FF_DATA) &&
 		    !(tmp & ME4000_AI_STATUS_BIT_HF_DATA) &&
@@ -1447,13 +1166,11 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 			tmp |= ME4000_AI_CTRL_BIT_IMMEDIATE_STOP;
 			tmp &= ~(ME4000_AI_CTRL_BIT_HF_IRQ |
 				 ME4000_AI_CTRL_BIT_SC_IRQ);
-			outl(tmp, ai_context->ctrl_reg);
+			outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 			s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
 
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_isr(): "
-			       "FIFO overflow\n", dev->minor);
+			dev_err(dev->class_dev, "FIFO overflow\n");
 		} else if ((tmp & ME4000_AI_STATUS_BIT_FF_DATA)
 			   && !(tmp & ME4000_AI_STATUS_BIT_HF_DATA)
 			   && (tmp & ME4000_AI_STATUS_BIT_EF_DATA)) {
@@ -1461,9 +1178,8 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 
 			c = ME4000_AI_FIFO_COUNT / 2;
 		} else {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_isr(): "
-			       "Can't determine state of fifo\n", dev->minor);
+			dev_err(dev->class_dev,
+				"Can't determine state of fifo\n");
 			c = 0;
 
 			/*
@@ -1473,18 +1189,16 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 			tmp |= ME4000_AI_CTRL_BIT_IMMEDIATE_STOP;
 			tmp &= ~(ME4000_AI_CTRL_BIT_HF_IRQ |
 				 ME4000_AI_CTRL_BIT_SC_IRQ);
-			outl(tmp, ai_context->ctrl_reg);
+			outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 			s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
 
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_ai_isr(): "
-			       "Undefined FIFO state\n", dev->minor);
+			dev_err(dev->class_dev, "Undefined FIFO state\n");
 		}
 
 		for (i = 0; i < c; i++) {
 			/* Read value from data fifo */
-			lval = inl(ai_context->data_reg) & 0xFFFF;
+			lval = inl(dev->iobase + ME4000_AI_DATA_REG) & 0xFFFF;
 			lval ^= 0x8000;
 
 			if (!comedi_buf_put(s->async, lval)) {
@@ -1495,13 +1209,11 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 				tmp |= ME4000_AI_CTRL_BIT_IMMEDIATE_STOP;
 				tmp &= ~(ME4000_AI_CTRL_BIT_HF_IRQ |
 					 ME4000_AI_CTRL_BIT_SC_IRQ);
-				outl(tmp, ai_context->ctrl_reg);
+				outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 				s->async->events |= COMEDI_CB_OVERFLOW;
 
-				printk(KERN_ERR
-				       "comedi%d: me4000: me4000_ai_isr(): "
-				       "Buffer overflow\n", dev->minor);
+				dev_err(dev->class_dev, "Buffer overflow\n");
 
 				break;
 			}
@@ -1509,33 +1221,33 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 
 		/* Work is done, so reset the interrupt */
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ_RESET;
-		outl(tmp, ai_context->ctrl_reg);
+		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 		tmp &= ~ME4000_AI_CTRL_BIT_HF_IRQ_RESET;
-		outl(tmp, ai_context->ctrl_reg);
+		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 	}
 
-	if (inl(ai_context->irq_status_reg) & ME4000_IRQ_STATUS_BIT_SC) {
+	if (inl(dev->iobase + ME4000_IRQ_STATUS_REG) &
+	    ME4000_IRQ_STATUS_BIT_SC) {
 		s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOA;
 
 		/*
 		 * Acquisition is complete, so stop
 		 * conversion and disable all interrupts
 		 */
-		tmp = inl(ai_context->ctrl_reg);
+		tmp = inl(dev->iobase + ME4000_AI_CTRL_REG);
 		tmp |= ME4000_AI_CTRL_BIT_IMMEDIATE_STOP;
 		tmp &= ~(ME4000_AI_CTRL_BIT_HF_IRQ | ME4000_AI_CTRL_BIT_SC_IRQ);
-		outl(tmp, ai_context->ctrl_reg);
+		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 
 		/* Poll data until fifo empty */
-		while (inl(ai_context->ctrl_reg) & ME4000_AI_STATUS_BIT_EF_DATA) {
+		while (inl(dev->iobase + ME4000_AI_CTRL_REG) &
+		       ME4000_AI_STATUS_BIT_EF_DATA) {
 			/* Read value from data fifo */
-			lval = inl(ai_context->data_reg) & 0xFFFF;
+			lval = inl(dev->iobase + ME4000_AI_DATA_REG) & 0xFFFF;
 			lval ^= 0x8000;
 
 			if (!comedi_buf_put(s->async, lval)) {
-				printk(KERN_ERR
-				       "comedi%d: me4000: me4000_ai_isr(): "
-				       "Buffer overflow\n", dev->minor);
+				dev_err(dev->class_dev, "Buffer overflow\n");
 				s->async->events |= COMEDI_CB_OVERFLOW;
 				break;
 			}
@@ -1543,9 +1255,9 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 
 		/* Work is done, so reset the interrupt */
 		tmp |= ME4000_AI_CTRL_BIT_SC_IRQ_RESET;
-		outl(tmp, ai_context->ctrl_reg);
+		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 		tmp &= ~ME4000_AI_CTRL_BIT_SC_IRQ_RESET;
-		outl(tmp, ai_context->ctrl_reg);
+		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
 	}
 
 	if (s->async->events)
@@ -1562,7 +1274,8 @@ static int me4000_ao_insn_write(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-
+	const struct me4000_board *thisboard = comedi_board(dev);
+	struct me4000_info *info = dev->private;
 	int chan = CR_CHAN(insn->chanspec);
 	int rang = CR_RANGE(insn->chanspec);
 	int aref = CR_AREF(insn->chanspec);
@@ -1571,46 +1284,39 @@ static int me4000_ao_insn_write(struct comedi_device *dev,
 	if (insn->n == 0) {
 		return 0;
 	} else if (insn->n > 1) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ao_insn_write(): "
-		       "Invalid instruction length %d\n", dev->minor, insn->n);
+		dev_err(dev->class_dev, "Invalid instruction length %d\n",
+			insn->n);
 		return -EINVAL;
 	}
 
-	if (chan >= thisboard->ao.count) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ao_insn_write(): "
-		       "Invalid channel %d\n", dev->minor, insn->n);
+	if (chan >= thisboard->ao_nchan) {
+		dev_err(dev->class_dev, "Invalid channel %d\n", insn->n);
 		return -EINVAL;
 	}
 
 	if (rang != 0) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ao_insn_write(): "
-		       "Invalid range %d\n", dev->minor, insn->n);
+		dev_err(dev->class_dev, "Invalid range %d\n", insn->n);
 		return -EINVAL;
 	}
 
 	if (aref != AREF_GROUND && aref != AREF_COMMON) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_ao_insn_write(): "
-		       "Invalid aref %d\n", dev->minor, insn->n);
+		dev_err(dev->class_dev, "Invalid aref %d\n", insn->n);
 		return -EINVAL;
 	}
 
 	/* Stop any running conversion */
-	tmp = inl(info->ao_context[chan].ctrl_reg);
+	tmp = inl(dev->iobase + ME4000_AO_CTRL_REG(chan));
 	tmp |= ME4000_AO_CTRL_BIT_IMMEDIATE_STOP;
-	outl(tmp, info->ao_context[chan].ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_AO_CTRL_REG(chan));
 
 	/* Clear control register and set to single mode */
-	outl(0x0, info->ao_context[chan].ctrl_reg);
+	outl(0x0, dev->iobase + ME4000_AO_CTRL_REG(chan));
 
 	/* Write data value */
-	outl(data[0], info->ao_context[chan].single_reg);
+	outl(data[0], dev->iobase + ME4000_AO_SINGLE_REG(chan));
 
 	/* Store in the mirror */
-	info->ao_context[chan].mirror = data[0];
+	info->ao_readback[chan] = data[0];
 
 	return 1;
 }
@@ -1619,18 +1325,17 @@ static int me4000_ao_insn_read(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	struct me4000_info *info = dev->private;
 	int chan = CR_CHAN(insn->chanspec);
 
 	if (insn->n == 0) {
 		return 0;
 	} else if (insn->n > 1) {
-		printk
-		    ("comedi%d: me4000: me4000_ao_insn_read(): "
-		     "Invalid instruction length\n", dev->minor);
+		dev_err(dev->class_dev, "Invalid instruction length\n");
 		return -EINVAL;
 	}
 
-	data[0] = info->ao_context[chan].mirror;
+	data[0] = info->ao_readback[chan];
 
 	return 1;
 }
@@ -1659,21 +1364,21 @@ static int me4000_dio_insn_bits(struct comedi_device *dev,
 
 		/* Write out the new digital output lines */
 		outl((s->state >> 0) & 0xFF,
-			    info->dio_context.port_0_reg);
+			    dev->iobase + ME4000_DIO_PORT_0_REG);
 		outl((s->state >> 8) & 0xFF,
-			    info->dio_context.port_1_reg);
+			    dev->iobase + ME4000_DIO_PORT_1_REG);
 		outl((s->state >> 16) & 0xFF,
-			    info->dio_context.port_2_reg);
+			    dev->iobase + ME4000_DIO_PORT_2_REG);
 		outl((s->state >> 24) & 0xFF,
-			    info->dio_context.port_3_reg);
+			    dev->iobase + ME4000_DIO_PORT_3_REG);
 	}
 
 	/* On return, data[1] contains the value of
 	   the digital input and output lines. */
-	data[1] = ((inl(info->dio_context.port_0_reg) & 0xFF) << 0) |
-		  ((inl(info->dio_context.port_1_reg) & 0xFF) << 8) |
-		  ((inl(info->dio_context.port_2_reg) & 0xFF) << 16) |
-		  ((inl(info->dio_context.port_3_reg) & 0xFF) << 24);
+	data[1] = ((inl(dev->iobase + ME4000_DIO_PORT_0_REG) & 0xFF) << 0) |
+		  ((inl(dev->iobase + ME4000_DIO_PORT_1_REG) & 0xFF) << 8) |
+		  ((inl(dev->iobase + ME4000_DIO_PORT_2_REG) & 0xFF) << 16) |
+		  ((inl(dev->iobase + ME4000_DIO_PORT_3_REG) & 0xFF) << 24);
 
 	return insn->n;
 }
@@ -1705,7 +1410,7 @@ static int me4000_dio_insn_config(struct comedi_device *dev,
 	 * On the ME-4000 it is only possible to switch port wise (8 bit)
 	 */
 
-	tmp = inl(info->dio_context.ctrl_reg);
+	tmp = inl(dev->iobase + ME4000_DIO_CTRL_REG);
 
 	if (data[0] == INSN_CONFIG_DIO_OUTPUT) {
 		if (chan < 8) {
@@ -1719,7 +1424,7 @@ static int me4000_dio_insn_config(struct comedi_device *dev,
 			 * If one the first port is a fixed output
 			 * port and the second is a fixed input port.
 			 */
-			if (!inl(info->dio_context.dir_reg))
+			if (!inl(dev->iobase + ME4000_DIO_DIR_REG))
 				return -ENODEV;
 
 			s->io_bits |= 0xFF00;
@@ -1746,7 +1451,7 @@ static int me4000_dio_insn_config(struct comedi_device *dev,
 			 * If one the first port is a fixed output
 			 * port and the second is a fixed input port.
 			 */
-			if (!inl(info->dio_context.dir_reg))
+			if (!inl(dev->iobase + ME4000_DIO_DIR_REG))
 				return -ENODEV;
 
 			s->io_bits &= ~0xFF;
@@ -1769,7 +1474,7 @@ static int me4000_dio_insn_config(struct comedi_device *dev,
 		}
 	}
 
-	outl(tmp, info->dio_context.ctrl_reg);
+	outl(tmp, dev->iobase + ME4000_DIO_CTRL_REG);
 
 	return 1;
 }
@@ -1778,177 +1483,56 @@ static int me4000_dio_insn_config(struct comedi_device *dev,
   Counter section
   ===========================================================================*/
 
-static int cnt_reset(struct comedi_device *dev, unsigned int channel)
-{
-	switch (channel) {
-	case 0:
-		outb(0x30, info->cnt_context.ctrl_reg);
-		outb(0x00, info->cnt_context.counter_0_reg);
-		outb(0x00, info->cnt_context.counter_0_reg);
-		break;
-	case 1:
-		outb(0x70, info->cnt_context.ctrl_reg);
-		outb(0x00, info->cnt_context.counter_1_reg);
-		outb(0x00, info->cnt_context.counter_1_reg);
-		break;
-	case 2:
-		outb(0xB0, info->cnt_context.ctrl_reg);
-		outb(0x00, info->cnt_context.counter_2_reg);
-		outb(0x00, info->cnt_context.counter_2_reg);
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: cnt_reset(): Invalid channel\n",
-		       dev->minor);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int cnt_config(struct comedi_device *dev, unsigned int channel,
-		      unsigned int mode)
-{
-	int tmp = 0;
-
-	switch (channel) {
-	case 0:
-		tmp |= ME4000_CNT_COUNTER_0;
-		break;
-	case 1:
-		tmp |= ME4000_CNT_COUNTER_1;
-		break;
-	case 2:
-		tmp |= ME4000_CNT_COUNTER_2;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: cnt_config(): Invalid channel\n",
-		       dev->minor);
-		return -EINVAL;
-	}
-
-	switch (mode) {
-	case 0:
-		tmp |= ME4000_CNT_MODE_0;
-		break;
-	case 1:
-		tmp |= ME4000_CNT_MODE_1;
-		break;
-	case 2:
-		tmp |= ME4000_CNT_MODE_2;
-		break;
-	case 3:
-		tmp |= ME4000_CNT_MODE_3;
-		break;
-	case 4:
-		tmp |= ME4000_CNT_MODE_4;
-		break;
-	case 5:
-		tmp |= ME4000_CNT_MODE_5;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: cnt_config(): Invalid counter mode\n",
-		       dev->minor);
-		return -EINVAL;
-	}
-
-	/* Write the control word */
-	tmp |= 0x30;
-	outb(tmp, info->cnt_context.ctrl_reg);
-
-	return 0;
-}
-
 static int me4000_cnt_insn_config(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
-
+	struct me4000_info *info = dev->private;
 	int err;
 
 	switch (data[0]) {
 	case GPCT_RESET:
-		if (insn->n != 1) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_cnt_insn_config(): "
-			       "Invalid instruction length%d\n",
-			       dev->minor, insn->n);
+		if (insn->n != 1)
 			return -EINVAL;
-		}
 
-		err = cnt_reset(dev, insn->chanspec);
+		err = i8254_load(info->timer_regbase, 0, insn->chanspec, 0,
+				I8254_MODE0 | I8254_BINARY);
 		if (err)
 			return err;
 		break;
 	case GPCT_SET_OPERATION:
-		if (insn->n != 2) {
-			printk(KERN_ERR
-			       "comedi%d: me4000: me4000_cnt_insn_config(): "
-			       "Invalid instruction length%d\n",
-			       dev->minor, insn->n);
+		if (insn->n != 2)
 			return -EINVAL;
-		}
 
-		err = cnt_config(dev, insn->chanspec, data[1]);
+		err = i8254_set_mode(info->timer_regbase, 0, insn->chanspec,
+				(data[1] << 1) | I8254_BINARY);
 		if (err)
 			return err;
 		break;
 	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_cnt_insn_config(): "
-		       "Invalid instruction\n", dev->minor);
 		return -EINVAL;
 	}
 
-	return 2;
+	return insn->n;
 }
 
 static int me4000_cnt_insn_read(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-
-	unsigned short tmp;
+	struct me4000_info *info = dev->private;
 
 	if (insn->n == 0)
 		return 0;
 
 	if (insn->n > 1) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_cnt_insn_read(): "
-		       "Invalid instruction length %d\n",
-		       dev->minor, insn->n);
+		dev_err(dev->class_dev, "Invalid instruction length %d\n",
+			insn->n);
 		return -EINVAL;
 	}
 
-	switch (insn->chanspec) {
-	case 0:
-		tmp = inb(info->cnt_context.counter_0_reg);
-		data[0] = tmp;
-		tmp = inb(info->cnt_context.counter_0_reg);
-		data[0] |= tmp << 8;
-		break;
-	case 1:
-		tmp = inb(info->cnt_context.counter_1_reg);
-		data[0] = tmp;
-		tmp = inb(info->cnt_context.counter_1_reg);
-		data[0] |= tmp << 8;
-		break;
-	case 2:
-		tmp = inb(info->cnt_context.counter_2_reg);
-		data[0] = tmp;
-		tmp = inb(info->cnt_context.counter_2_reg);
-		data[0] |= tmp << 8;
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_cnt_insn_read(): "
-		       "Invalid channel %d\n",
-		       dev->minor, insn->chanspec);
-		return -EINVAL;
-	}
+	data[0] = i8254_read(info->timer_regbase, 0, insn->chanspec);
 
 	return 1;
 }
@@ -1957,58 +1541,72 @@ static int me4000_cnt_insn_write(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
 {
-
-	unsigned short tmp;
+	struct me4000_info *info = dev->private;
 
 	if (insn->n == 0) {
 		return 0;
 	} else if (insn->n > 1) {
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_cnt_insn_write(): "
-		       "Invalid instruction length %d\n",
-		       dev->minor, insn->n);
+		dev_err(dev->class_dev, "Invalid instruction length %d\n",
+			insn->n);
 		return -EINVAL;
 	}
 
-	switch (insn->chanspec) {
-	case 0:
-		tmp = data[0] & 0xFF;
-		outb(tmp, info->cnt_context.counter_0_reg);
-		tmp = (data[0] >> 8) & 0xFF;
-		outb(tmp, info->cnt_context.counter_0_reg);
-		break;
-	case 1:
-		tmp = data[0] & 0xFF;
-		outb(tmp, info->cnt_context.counter_1_reg);
-		tmp = (data[0] >> 8) & 0xFF;
-		outb(tmp, info->cnt_context.counter_1_reg);
-		break;
-	case 2:
-		tmp = data[0] & 0xFF;
-		outb(tmp, info->cnt_context.counter_2_reg);
-		tmp = (data[0] >> 8) & 0xFF;
-		outb(tmp, info->cnt_context.counter_2_reg);
-		break;
-	default:
-		printk(KERN_ERR
-		       "comedi%d: me4000: me4000_cnt_insn_write(): "
-		       "Invalid channel %d\n",
-		       dev->minor, insn->chanspec);
-		return -EINVAL;
-	}
+	i8254_write(info->timer_regbase, 0, insn->chanspec, data[0]);
 
 	return 1;
 }
 
-static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static const void *me4000_find_boardinfo(struct comedi_device *dev,
+					 struct pci_dev *pcidev)
 {
+	const struct me4000_board *thisboard;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(me4000_boards); i++) {
+		thisboard = &me4000_boards[i];
+		if (thisboard->device_id == pcidev->device)
+			return thisboard;
+	}
+	return NULL;
+}
+
+static int me4000_attach_pci(struct comedi_device *dev,
+			     struct pci_dev *pcidev)
+{
+	const struct me4000_board *thisboard;
+	struct me4000_info *info;
 	struct comedi_subdevice *s;
 	int result;
 
-	result = me4000_probe(dev, it);
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	thisboard = me4000_find_boardinfo(dev, pcidev);
+	if (!thisboard)
+		return -ENODEV;
+	dev->board_ptr = thisboard;
+	dev->board_name = thisboard->name;
+
+	result = alloc_private(dev, sizeof(*info));
+	if (result)
+		return result;
+	info = dev->private;
+
+	result = comedi_pci_enable(pcidev, dev->board_name);
+	if (result)
+		return result;
+
+	info->plx_regbase = pci_resource_start(pcidev, 1);
+	dev->iobase = pci_resource_start(pcidev, 2);
+	info->timer_regbase = pci_resource_start(pcidev, 3);
+	if (!info->plx_regbase || !dev->iobase || !info->timer_regbase)
+		return -ENODEV;
+
+	result = xilinx_download(dev);
 	if (result)
 		return result;
 
+	me4000_reset(dev);
+
 	result = comedi_alloc_subdevices(dev, 4);
 	if (result)
 		return result;
@@ -2017,35 +1615,34 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
       Analog input subdevice
       ========================================================================*/
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 
-	if (thisboard->ai.count) {
+	if (thisboard->ai_nchan) {
 		s->type = COMEDI_SUBD_AI;
 		s->subdev_flags =
 		    SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;
-		s->n_chan = thisboard->ai.count;
+		s->n_chan = thisboard->ai_nchan;
 		s->maxdata = 0xFFFF;	/*  16 bit ADC */
 		s->len_chanlist = ME4000_AI_CHANNEL_LIST_COUNT;
 		s->range_table = &me4000_ai_range;
 		s->insn_read = me4000_ai_insn_read;
 
-		if (info->irq > 0) {
-			if (request_irq(info->irq, me4000_ai_isr,
-					IRQF_SHARED, "ME-4000", dev)) {
-				printk
-				    ("comedi%d: me4000: me4000_attach(): "
-				     "Unable to allocate irq\n", dev->minor);
+		if (pcidev->irq > 0) {
+			if (request_irq(pcidev->irq, me4000_ai_isr,
+					IRQF_SHARED, dev->board_name, dev)) {
+				dev_warn(dev->class_dev,
+					"request_irq failed\n");
 			} else {
 				dev->read_subdev = s;
 				s->subdev_flags |= SDF_CMD_READ;
 				s->cancel = me4000_ai_cancel;
 				s->do_cmdtest = me4000_ai_do_cmd_test;
 				s->do_cmd = me4000_ai_do_cmd;
+
+				dev->irq = pcidev->irq;
 			}
 		} else {
-			printk(KERN_WARNING
-			       "comedi%d: me4000: me4000_attach(): "
-			       "No interrupt available\n", dev->minor);
+			dev_warn(dev->class_dev, "No interrupt available\n");
 		}
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
@@ -2055,14 +1652,14 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
       Analog output subdevice
       ========================================================================*/
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 
-	if (thisboard->ao.count) {
+	if (thisboard->ao_nchan) {
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags = SDF_WRITEABLE | SDF_COMMON | SDF_GROUND;
-		s->n_chan = thisboard->ao.count;
+		s->n_chan = thisboard->ao_nchan;
 		s->maxdata = 0xFFFF;	/*  16 bit DAC */
-		s->range_table = &me4000_ao_range;
+		s->range_table = &range_bipolar10;
 		s->insn_write = me4000_ao_insn_write;
 		s->insn_read = me4000_ao_insn_read;
 	} else {
@@ -2073,12 +1670,12 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
       Digital I/O subdevice
       ========================================================================*/
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 
-	if (thisboard->dio.count) {
+	if (thisboard->dio_nchan) {
 		s->type = COMEDI_SUBD_DIO;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-		s->n_chan = thisboard->dio.count * 8;
+		s->n_chan = thisboard->dio_nchan;
 		s->maxdata = 1;
 		s->range_table = &range_digital;
 		s->insn_bits = me4000_dio_insn_bits;
@@ -2091,21 +1688,22 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	 * Check for optoisolated ME-4000 version. If one the first
 	 * port is a fixed output port and the second is a fixed input port.
 	 */
-	if (!inl(info->dio_context.dir_reg)) {
+	if (!inl(dev->iobase + ME4000_DIO_DIR_REG)) {
 		s->io_bits |= 0xFF;
-		outl(ME4000_DIO_CTRL_BIT_MODE_0, info->dio_context.dir_reg);
+		outl(ME4000_DIO_CTRL_BIT_MODE_0,
+			dev->iobase + ME4000_DIO_DIR_REG);
 	}
 
     /*=========================================================================
       Counter subdevice
       ========================================================================*/
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 
-	if (thisboard->cnt.count) {
+	if (thisboard->has_counter) {
 		s->type = COMEDI_SUBD_COUNTER;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-		s->n_chan = thisboard->cnt.count;
+		s->n_chan = 3;
 		s->maxdata = 0xFFFF;	/*  16 bit counters */
 		s->insn_read = me4000_cnt_insn_read;
 		s->insn_write = me4000_cnt_insn_write;
@@ -2119,12 +1717,14 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static void me4000_detach(struct comedi_device *dev)
 {
-	if (info) {
-		if (info->pci_dev_p) {
-			reset_board(dev);
-			if (info->plx_regbase)
-				comedi_pci_disable(info->pci_dev_p);
-			pci_dev_put(info->pci_dev_p);
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
+	if (dev->irq)
+		free_irq(dev->irq, dev);
+	if (pcidev) {
+		if (dev->iobase) {
+			me4000_reset(dev);
+			comedi_pci_disable(pcidev);
 		}
 	}
 }
@@ -2132,7 +1732,7 @@ static void me4000_detach(struct comedi_device *dev)
 static struct comedi_driver me4000_driver = {
 	.driver_name	= "me4000",
 	.module		= THIS_MODULE,
-	.attach		= me4000_attach,
+	.attach_pci	= me4000_attach_pci,
 	.detach		= me4000_detach,
 };
 
@@ -2148,20 +1748,20 @@ static void __devexit me4000_pci_remove(struct pci_dev *dev)
 }
 
 static DEFINE_PCI_DEVICE_TABLE(me4000_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4650) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4660) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4661) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4662) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4663) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4670) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4671) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4672) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4673) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4680) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4681) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4682) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, 0x4683) },
-	{ 0 }
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4650)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4660)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4660I)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4660S)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4660IS)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4670)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4670I)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4670S)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4670IS)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4680)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4680I)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4680S)},
+	{PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, PCI_DEVICE_ID_MEILHAUS_ME4680IS)},
+	{0}
 };
 MODULE_DEVICE_TABLE(pci, me4000_pci_table);
 
diff --git a/drivers/staging/comedi/drivers/me4000.h b/drivers/staging/comedi/drivers/me4000.h
deleted file mode 100644
index 5a4df4e4b23..00000000000
--- a/drivers/staging/comedi/drivers/me4000.h
+++ /dev/null
@@ -1,409 +0,0 @@
-/*
-    me4000.h
-    Register descriptions and defines for the ME-4000 board family
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998-9 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-#ifndef _ME4000_H_
-#define _ME4000_H_
-
-/*=============================================================================
-  PCI vendor and device IDs
-  ===========================================================================*/
-
-#define PCI_VENDOR_ID_MEILHAUS 0x1402
-
-#define PCI_DEVICE_ID_MEILHAUS_ME4650	0x4650	/*  Low Cost version */
-
-#define PCI_DEVICE_ID_MEILHAUS_ME4660	0x4660	/*  Standard version */
-#define PCI_DEVICE_ID_MEILHAUS_ME4660I	0x4661	/*  Isolated version */
-#define PCI_DEVICE_ID_MEILHAUS_ME4660S	0x4662	/*  Standard version with Sample and Hold */
-#define PCI_DEVICE_ID_MEILHAUS_ME4660IS	0x4663	/*  Isolated version with Sample and Hold */
-
-#define PCI_DEVICE_ID_MEILHAUS_ME4670	0x4670	/*  Standard version */
-#define PCI_DEVICE_ID_MEILHAUS_ME4670I	0x4671	/*  Isolated version */
-#define PCI_DEVICE_ID_MEILHAUS_ME4670S	0x4672	/*  Standard version with Sample and Hold */
-#define PCI_DEVICE_ID_MEILHAUS_ME4670IS	0x4673	/*  Isolated version with Sample and Hold */
-
-#define PCI_DEVICE_ID_MEILHAUS_ME4680	0x4680	/*  Standard version */
-#define PCI_DEVICE_ID_MEILHAUS_ME4680I	0x4681	/*  Isolated version */
-#define PCI_DEVICE_ID_MEILHAUS_ME4680S	0x4682	/*  Standard version with Sample and Hold */
-#define PCI_DEVICE_ID_MEILHAUS_ME4680IS	0x4683	/*  Isolated version with Sample and Hold */
-
-/*=============================================================================
-  ME-4000 base register offsets
-  ===========================================================================*/
-
-#define ME4000_AO_00_CTRL_REG			0x00	/*  R/W */
-#define ME4000_AO_00_STATUS_REG			0x04	/*  R/_ */
-#define ME4000_AO_00_FIFO_REG			0x08	/*  _/W */
-#define ME4000_AO_00_SINGLE_REG			0x0C	/*  R/W */
-#define ME4000_AO_00_TIMER_REG			0x10	/*  _/W */
-
-#define ME4000_AO_01_CTRL_REG			0x18	/*  R/W */
-#define ME4000_AO_01_STATUS_REG			0x1C	/*  R/_ */
-#define ME4000_AO_01_FIFO_REG			0x20	/*  _/W */
-#define ME4000_AO_01_SINGLE_REG			0x24	/*  R/W */
-#define ME4000_AO_01_TIMER_REG			0x28	/*  _/W */
-
-#define ME4000_AO_02_CTRL_REG			0x30	/*  R/W */
-#define ME4000_AO_02_STATUS_REG			0x34	/*  R/_ */
-#define ME4000_AO_02_FIFO_REG			0x38	/*  _/W */
-#define ME4000_AO_02_SINGLE_REG			0x3C	/*  R/W */
-#define ME4000_AO_02_TIMER_REG			0x40	/*  _/W */
-
-#define ME4000_AO_03_CTRL_REG			0x48	/*  R/W */
-#define ME4000_AO_03_STATUS_REG			0x4C	/*  R/_ */
-#define ME4000_AO_03_FIFO_REG			0x50	/*  _/W */
-#define ME4000_AO_03_SINGLE_REG			0x54	/*  R/W */
-#define ME4000_AO_03_TIMER_REG			0x58	/*  _/W */
-
-#define ME4000_AI_CTRL_REG			0x74	/*  _/W */
-#define ME4000_AI_STATUS_REG			0x74	/*  R/_ */
-#define ME4000_AI_CHANNEL_LIST_REG		0x78	/*  _/W */
-#define ME4000_AI_DATA_REG			0x7C	/*  R/_ */
-#define ME4000_AI_CHAN_TIMER_REG		0x80	/*  _/W */
-#define ME4000_AI_CHAN_PRE_TIMER_REG		0x84	/*  _/W */
-#define ME4000_AI_SCAN_TIMER_LOW_REG		0x88	/*  _/W */
-#define ME4000_AI_SCAN_TIMER_HIGH_REG		0x8C	/*  _/W */
-#define ME4000_AI_SCAN_PRE_TIMER_LOW_REG	0x90	/*  _/W */
-#define ME4000_AI_SCAN_PRE_TIMER_HIGH_REG	0x94	/*  _/W */
-#define ME4000_AI_START_REG			0x98	/*  R/_ */
-
-#define ME4000_IRQ_STATUS_REG			0x9C	/*  R/_ */
-
-#define ME4000_DIO_PORT_0_REG			0xA0	/*  R/W */
-#define ME4000_DIO_PORT_1_REG			0xA4	/*  R/W */
-#define ME4000_DIO_PORT_2_REG			0xA8	/*  R/W */
-#define ME4000_DIO_PORT_3_REG			0xAC	/*  R/W */
-#define ME4000_DIO_DIR_REG			0xB0	/*  R/W */
-
-#define ME4000_AO_LOADSETREG_XX			0xB4	/*  R/W */
-
-#define ME4000_DIO_CTRL_REG			0xB8	/*  R/W */
-
-#define ME4000_AO_DEMUX_ADJUST_REG		0xBC	/*  -/W */
-
-#define ME4000_AI_SAMPLE_COUNTER_REG		0xC0	/*  _/W */
-
-/*=============================================================================
-  Value to adjust Demux
-  ===========================================================================*/
-
-#define ME4000_AO_DEMUX_ADJUST_VALUE            0x4C
-
-/*=============================================================================
-  Counter base register offsets
-  ===========================================================================*/
-
-#define ME4000_CNT_COUNTER_0_REG		0x00
-#define ME4000_CNT_COUNTER_1_REG		0x01
-#define ME4000_CNT_COUNTER_2_REG		0x02
-#define ME4000_CNT_CTRL_REG			0x03
-
-/*=============================================================================
-  PLX base register offsets
-  ===========================================================================*/
-
-#define PLX_INTCSR	0x4C	/*  Interrupt control and status register */
-#define PLX_ICR		0x50	/*  Initialization control register */
-
-/*=============================================================================
-  Bits for the PLX_ICSR register
-  ===========================================================================*/
-
-#define PLX_INTCSR_LOCAL_INT1_EN             0x01	/*  If set, local interrupt 1 is enabled (r/w) */
-#define PLX_INTCSR_LOCAL_INT1_POL            0x02	/*  If set, local interrupt 1 polarity is active high (r/w) */
-#define PLX_INTCSR_LOCAL_INT1_STATE          0x04	/*  If set, local interrupt 1 is active (r/_) */
-#define PLX_INTCSR_LOCAL_INT2_EN             0x08	/*  If set, local interrupt 2 is enabled (r/w) */
-#define PLX_INTCSR_LOCAL_INT2_POL            0x10	/*  If set, local interrupt 2 polarity is active high (r/w) */
-#define PLX_INTCSR_LOCAL_INT2_STATE          0x20	/*  If set, local interrupt 2 is active  (r/_) */
-#define PLX_INTCSR_PCI_INT_EN                0x40	/*  If set, PCI interrupt is enabled (r/w) */
-#define PLX_INTCSR_SOFT_INT                  0x80	/*  If set, a software interrupt is generated (r/w) */
-
-/*=============================================================================
-  Bits for the PLX_ICR register
-  ===========================================================================*/
-
-#define PLX_ICR_BIT_EEPROM_CLOCK_SET		0x01000000
-#define PLX_ICR_BIT_EEPROM_CHIP_SELECT		0x02000000
-#define PLX_ICR_BIT_EEPROM_WRITE		0x04000000
-#define PLX_ICR_BIT_EEPROM_READ			0x08000000
-#define PLX_ICR_BIT_EEPROM_VALID		0x10000000
-
-#define PLX_ICR_MASK_EEPROM			0x1F000000
-
-#define EEPROM_DELAY				1
-
-/*=============================================================================
-  Bits for the ME4000_AO_CTRL_REG register
-  ===========================================================================*/
-
-#define ME4000_AO_CTRL_BIT_MODE_0		0x001
-#define ME4000_AO_CTRL_BIT_MODE_1		0x002
-#define ME4000_AO_CTRL_MASK_MODE		0x003
-#define ME4000_AO_CTRL_BIT_STOP			0x004
-#define ME4000_AO_CTRL_BIT_ENABLE_FIFO		0x008
-#define ME4000_AO_CTRL_BIT_ENABLE_EX_TRIG	0x010
-#define ME4000_AO_CTRL_BIT_EX_TRIG_EDGE		0x020
-#define ME4000_AO_CTRL_BIT_IMMEDIATE_STOP	0x080
-#define ME4000_AO_CTRL_BIT_ENABLE_DO		0x100
-#define ME4000_AO_CTRL_BIT_ENABLE_IRQ		0x200
-#define ME4000_AO_CTRL_BIT_RESET_IRQ		0x400
-
-/*=============================================================================
-  Bits for the ME4000_AO_STATUS_REG register
-  ===========================================================================*/
-
-#define ME4000_AO_STATUS_BIT_FSM		0x01
-#define ME4000_AO_STATUS_BIT_FF			0x02
-#define ME4000_AO_STATUS_BIT_HF			0x04
-#define ME4000_AO_STATUS_BIT_EF			0x08
-
-/*=============================================================================
-  Bits for the ME4000_AI_CTRL_REG register
-  ===========================================================================*/
-
-#define ME4000_AI_CTRL_BIT_MODE_0		0x00000001
-#define ME4000_AI_CTRL_BIT_MODE_1		0x00000002
-#define ME4000_AI_CTRL_BIT_MODE_2		0x00000004
-#define ME4000_AI_CTRL_BIT_SAMPLE_HOLD		0x00000008
-#define ME4000_AI_CTRL_BIT_IMMEDIATE_STOP	0x00000010
-#define ME4000_AI_CTRL_BIT_STOP			0x00000020
-#define ME4000_AI_CTRL_BIT_CHANNEL_FIFO		0x00000040
-#define ME4000_AI_CTRL_BIT_DATA_FIFO		0x00000080
-#define ME4000_AI_CTRL_BIT_FULLSCALE		0x00000100
-#define ME4000_AI_CTRL_BIT_OFFSET		0x00000200
-#define ME4000_AI_CTRL_BIT_EX_TRIG_ANALOG	0x00000400
-#define ME4000_AI_CTRL_BIT_EX_TRIG		0x00000800
-#define ME4000_AI_CTRL_BIT_EX_TRIG_FALLING	0x00001000
-#define ME4000_AI_CTRL_BIT_EX_IRQ		0x00002000
-#define ME4000_AI_CTRL_BIT_EX_IRQ_RESET		0x00004000
-#define ME4000_AI_CTRL_BIT_LE_IRQ		0x00008000
-#define ME4000_AI_CTRL_BIT_LE_IRQ_RESET		0x00010000
-#define ME4000_AI_CTRL_BIT_HF_IRQ		0x00020000
-#define ME4000_AI_CTRL_BIT_HF_IRQ_RESET		0x00040000
-#define ME4000_AI_CTRL_BIT_SC_IRQ		0x00080000
-#define ME4000_AI_CTRL_BIT_SC_IRQ_RESET		0x00100000
-#define ME4000_AI_CTRL_BIT_SC_RELOAD		0x00200000
-#define ME4000_AI_CTRL_BIT_EX_TRIG_BOTH		0x80000000
-
-/*=============================================================================
-  Bits for the ME4000_AI_STATUS_REG register
-  ===========================================================================*/
-
-#define ME4000_AI_STATUS_BIT_EF_CHANNEL		0x00400000
-#define ME4000_AI_STATUS_BIT_HF_CHANNEL		0x00800000
-#define ME4000_AI_STATUS_BIT_FF_CHANNEL		0x01000000
-#define ME4000_AI_STATUS_BIT_EF_DATA		0x02000000
-#define ME4000_AI_STATUS_BIT_HF_DATA		0x04000000
-#define ME4000_AI_STATUS_BIT_FF_DATA		0x08000000
-#define ME4000_AI_STATUS_BIT_LE			0x10000000
-#define ME4000_AI_STATUS_BIT_FSM		0x20000000
-
-/*=============================================================================
-  Bits for the ME4000_IRQ_STATUS_REG register
-  ===========================================================================*/
-
-#define ME4000_IRQ_STATUS_BIT_EX		0x01
-#define ME4000_IRQ_STATUS_BIT_LE		0x02
-#define ME4000_IRQ_STATUS_BIT_AI_HF		0x04
-#define ME4000_IRQ_STATUS_BIT_AO_0_HF		0x08
-#define ME4000_IRQ_STATUS_BIT_AO_1_HF		0x10
-#define ME4000_IRQ_STATUS_BIT_AO_2_HF		0x20
-#define ME4000_IRQ_STATUS_BIT_AO_3_HF		0x40
-#define ME4000_IRQ_STATUS_BIT_SC		0x80
-
-/*=============================================================================
-  Bits for the ME4000_DIO_CTRL_REG register
-  ===========================================================================*/
-
-#define ME4000_DIO_CTRL_BIT_MODE_0		0x0001
-#define ME4000_DIO_CTRL_BIT_MODE_1		0x0002
-#define ME4000_DIO_CTRL_BIT_MODE_2		0x0004
-#define ME4000_DIO_CTRL_BIT_MODE_3		0x0008
-#define ME4000_DIO_CTRL_BIT_MODE_4		0x0010
-#define ME4000_DIO_CTRL_BIT_MODE_5		0x0020
-#define ME4000_DIO_CTRL_BIT_MODE_6		0x0040
-#define ME4000_DIO_CTRL_BIT_MODE_7		0x0080
-
-#define ME4000_DIO_CTRL_BIT_FUNCTION_0		0x0100
-#define ME4000_DIO_CTRL_BIT_FUNCTION_1		0x0200
-
-#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_0		0x0400
-#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_1		0x0800
-#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_2		0x1000
-#define ME4000_DIO_CTRL_BIT_FIFO_HIGH_3		0x2000
-
-/*=============================================================================
-  Information about the hardware capabilities
-  ===========================================================================*/
-
-struct me4000_ao_info {
-	int count;
-	int fifo_count;
-};
-
-struct me4000_ai_info {
-	int count;
-	int sh_count;
-	int diff_count;
-	int ex_trig_analog;
-};
-
-struct me4000_dio_info {
-	int count;
-};
-
-struct me4000_cnt_info {
-	int count;
-};
-
-struct me4000_board {
-	const char *name;
-	unsigned short device_id;
-	struct me4000_ao_info ao;
-	struct me4000_ai_info ai;
-	struct me4000_dio_info dio;
-	struct me4000_cnt_info cnt;
-};
-
-#define thisboard ((const struct me4000_board *)dev->board_ptr)
-
-/*=============================================================================
-  Global board and subdevice information structures
-  ===========================================================================*/
-
-struct me4000_ao_context {
-	int irq;
-
-	unsigned long mirror;	/*  Store the last written value */
-
-	unsigned long ctrl_reg;
-	unsigned long status_reg;
-	unsigned long fifo_reg;
-	unsigned long single_reg;
-	unsigned long timer_reg;
-	unsigned long irq_status_reg;
-	unsigned long preload_reg;
-};
-
-struct me4000_ai_context {
-	int irq;
-
-	unsigned long ctrl_reg;
-	unsigned long status_reg;
-	unsigned long channel_list_reg;
-	unsigned long data_reg;
-	unsigned long chan_timer_reg;
-	unsigned long chan_pre_timer_reg;
-	unsigned long scan_timer_low_reg;
-	unsigned long scan_timer_high_reg;
-	unsigned long scan_pre_timer_low_reg;
-	unsigned long scan_pre_timer_high_reg;
-	unsigned long start_reg;
-	unsigned long irq_status_reg;
-	unsigned long sample_counter_reg;
-};
-
-struct me4000_dio_context {
-	unsigned long dir_reg;
-	unsigned long ctrl_reg;
-	unsigned long port_0_reg;
-	unsigned long port_1_reg;
-	unsigned long port_2_reg;
-	unsigned long port_3_reg;
-};
-
-struct me4000_cnt_context {
-	unsigned long ctrl_reg;
-	unsigned long counter_0_reg;
-	unsigned long counter_1_reg;
-	unsigned long counter_2_reg;
-};
-
-struct me4000_info {
-	unsigned long plx_regbase;	/*  PLX configuration space base address */
-	unsigned long me4000_regbase;	/*  Base address of the ME4000 */
-	unsigned long timer_regbase;	/*  Base address of the timer circuit */
-	unsigned long program_regbase;	/*  Base address to set the program pin for the xilinx */
-
-	unsigned long plx_regbase_size;	/*  PLX register set space */
-	unsigned long me4000_regbase_size;	/*  ME4000 register set space */
-	unsigned long timer_regbase_size;	/*  Timer circuit register set space */
-	unsigned long program_regbase_size;	/*  Size of program base address of the ME4000 */
-
-	unsigned int serial_no;	/*  Serial number of the board */
-	unsigned char hw_revision;	/*  Hardware revision of the board */
-	unsigned short vendor_id;	/*  Meilhaus vendor id */
-	unsigned short device_id;	/*  Device id */
-
-	struct pci_dev *pci_dev_p;	/*  General PCI information */
-
-	unsigned int irq;	/*  IRQ assigned from the PCI BIOS */
-
-	struct me4000_ai_context ai_context;	/*  Analog input  specific context */
-	struct me4000_ao_context ao_context[4];	/*  Vector with analog output specific context */
-	struct me4000_dio_context dio_context;	/*  Digital I/O specific context */
-	struct me4000_cnt_context cnt_context;	/*  Counter specific context */
-};
-
-#define info	((struct me4000_info *)dev->private)
-
-/*-----------------------------------------------------------------------------
-  Defines for analog input
- ----------------------------------------------------------------------------*/
-
-/* General stuff */
-#define ME4000_AI_FIFO_COUNT			2048
-
-#define ME4000_AI_MIN_TICKS			66
-#define ME4000_AI_MIN_SAMPLE_TIME		2000	/*  Minimum sample time [ns] */
-#define ME4000_AI_BASE_FREQUENCY		(unsigned int) 33E6
-
-/* Channel list defines and masks */
-#define ME4000_AI_CHANNEL_LIST_COUNT		1024
-
-#define ME4000_AI_LIST_INPUT_SINGLE_ENDED	0x000
-#define ME4000_AI_LIST_INPUT_DIFFERENTIAL	0x020
-
-#define ME4000_AI_LIST_RANGE_BIPOLAR_10		0x000
-#define ME4000_AI_LIST_RANGE_BIPOLAR_2_5	0x040
-#define ME4000_AI_LIST_RANGE_UNIPOLAR_10	0x080
-#define ME4000_AI_LIST_RANGE_UNIPOLAR_2_5	0x0C0
-
-#define ME4000_AI_LIST_LAST_ENTRY		0x100
-
-/*-----------------------------------------------------------------------------
-  Defines for counters
- ----------------------------------------------------------------------------*/
-
-#define ME4000_CNT_COUNTER_0  0x00
-#define ME4000_CNT_COUNTER_1  0x40
-#define ME4000_CNT_COUNTER_2  0x80
-
-#define ME4000_CNT_MODE_0     0x00	/*  Change state if zero crossing */
-#define ME4000_CNT_MODE_1     0x02	/*  Retriggerable One-Shot */
-#define ME4000_CNT_MODE_2     0x04	/*  Asymmetrical divider */
-#define ME4000_CNT_MODE_3     0x06	/*  Symmetrical divider */
-#define ME4000_CNT_MODE_4     0x08	/*  Counter start by software trigger */
-#define ME4000_CNT_MODE_5     0x0A	/*  Counter start by hardware trigger */
-
-#endif
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index 8c6f8b93b27..2ce0b14af58 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -41,22 +41,14 @@ Configuration options:
 
     If bus/slot is not specified, the first available PCI
     device will be used.
-
-The 2600 requires a firmware upload, which can be accomplished
-using the -i or --init-data option of comedi_config.
-The firmware can be
-found in the comedi_nonfree_firmware tarball available
-from http://www.comedi.org
-
 */
 
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/firmware.h>
 #include "../comedidev.h"
 
-/*#include "me2600_fw.h" */
-
-#define ME_DRIVER_NAME		"me_daq"
+#define ME2600_FIRMWARE		"me2600_firmware.bin"
 
 #define PCI_VENDOR_ID_MEILHAUS	0x1402
 #define ME2000_DEVICE_ID	0x2000
@@ -198,8 +190,7 @@ struct me_board {
 
 static const struct me_board me_boards[] = {
 	{
-	 /* -- ME-2600i -- */
-	 .name = ME_DRIVER_NAME,
+	 .name = "me-2600i",
 	 .device_id = ME2600_DEVICE_ID,
 	 /* Analog Output */
 	 .ao_channel_nbr = 4,
@@ -214,8 +205,7 @@ static const struct me_board me_boards[] = {
 	 .dio_channel_nbr = 32,
 	 },
 	{
-	 /* -- ME-2000i -- */
-	 .name = ME_DRIVER_NAME,
+	 .name = "me-2000i",
 	 .device_id = ME2000_DEVICE_ID,
 	 /* Analog Output */
 	 .ao_channel_nbr = 0,
@@ -341,7 +331,7 @@ static int me_dio_insn_bits(struct comedi_device *dev,
 
 /* Analog instant input */
 static int me_ai_insn_read(struct comedi_device *dev,
-			   struct comedi_subdevice *subdevice,
+			   struct comedi_subdevice *s,
 			   struct comedi_insn *insn, unsigned int *data)
 {
 	unsigned short value;
@@ -435,7 +425,7 @@ static int me_ai_do_cmd_test(struct comedi_device *dev,
 
 /* Analog input command */
 static int me_ai_do_cmd(struct comedi_device *dev,
-			struct comedi_subdevice *subdevice)
+			struct comedi_subdevice *s)
 {
 	return 0;
 }
@@ -524,8 +514,7 @@ static int me_ao_insn_read(struct comedi_device *dev,
 
 /* Xilinx firmware download for card: ME-2600i */
 static int me2600_xilinx_download(struct comedi_device *dev,
-				  unsigned char *me2600_firmware,
-				  unsigned int length)
+				  const u8 *data, size_t size)
 {
 	unsigned int value;
 	unsigned int file_length;
@@ -552,19 +541,20 @@ static int me2600_xilinx_download(struct comedi_device *dev,
 	 * Byte 8-11:  date
 	 * Byte 12-15: reserved
 	 */
-	if (length < 16)
+	if (size < 16)
 		return -EINVAL;
-	file_length = (((unsigned int)me2600_firmware[0] & 0xff) << 24) +
-	    (((unsigned int)me2600_firmware[1] & 0xff) << 16) +
-	    (((unsigned int)me2600_firmware[2] & 0xff) << 8) +
-	    ((unsigned int)me2600_firmware[3] & 0xff);
+
+	file_length = (((unsigned int)data[0] & 0xff) << 24) +
+	    (((unsigned int)data[1] & 0xff) << 16) +
+	    (((unsigned int)data[2] & 0xff) << 8) +
+	    ((unsigned int)data[3] & 0xff);
 
 	/*
 	 * Loop for writing firmware byte by byte to xilinx
 	 * Firmware data start at offfset 16
 	 */
 	for (i = 0; i < file_length; i++)
-		writeb((me2600_firmware[16 + i] & 0xff),
+		writeb((data[16 + i] & 0xff),
 		       dev_private->me_regbase + 0x0);
 
 	/* Write 5 dummy values to xilinx */
@@ -590,6 +580,22 @@ static int me2600_xilinx_download(struct comedi_device *dev,
 	return 0;
 }
 
+static int me2600_upload_firmware(struct comedi_device *dev)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	const struct firmware *fw;
+	int ret;
+
+	ret = request_firmware(&fw, ME2600_FIRMWARE, &pcidev->dev);
+	if (ret)
+		return ret;
+
+	ret = me2600_xilinx_download(dev, fw->data, fw->size);
+	release_firmware(fw);
+
+	return ret;
+}
+
 /* Reset device */
 static int me_reset(struct comedi_device *dev)
 {
@@ -607,44 +613,24 @@ static int me_reset(struct comedi_device *dev)
 	return 0;
 }
 
-static struct pci_dev *me_find_pci_dev(struct comedi_device *dev,
-				       struct comedi_devconfig *it)
+static const void *me_find_boardinfo(struct comedi_device *dev,
+				     struct pci_dev *pcidev)
 {
 	const struct me_board *board;
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
 	int i;
 
-	for_each_pci_dev(pcidev) {
-		if (bus || slot) {
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		if (pcidev->vendor != PCI_VENDOR_ID_MEILHAUS)
-			continue;
-
-		for (i = 0; i < ARRAY_SIZE(me_boards); i++) {
-			board = &me_boards[i];
-			if (board->device_id != pcidev->device)
-				continue;
-
-			dev->board_ptr = board;
-			return pcidev;
-		}
+	for (i = 0; i < ARRAY_SIZE(me_boards); i++) {
+		board = &me_boards[i];
+		if (board->device_id == pcidev->device)
+			return board;
 	}
-	dev_err(dev->class_dev,
-		"No supported board found! (req. bus %d, slot %d)\n",
-		bus, slot);
 	return NULL;
 }
 
-static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int me_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
 {
-	struct pci_dev *pci_device;
-	struct comedi_subdevice *subdevice;
-	struct me_board *board;
+	const struct me_board *board;
+	struct comedi_subdevice *s;
 	resource_size_t plx_regbase_tmp;
 	unsigned long plx_regbase_size_tmp;
 	resource_size_t me_regbase_tmp;
@@ -654,29 +640,28 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	resource_size_t regbase_tmp;
 	int result, error;
 
+	comedi_set_hw_dev(dev, &pcidev->dev);
+
+	board = me_find_boardinfo(dev, pcidev);
+	if (!board)
+		return -ENODEV;
+	dev->board_ptr = board;
+	dev->board_name = board->name;
+
 	/* Allocate private memory */
 	if (alloc_private(dev, sizeof(struct me_private_data)) < 0)
 		return -ENOMEM;
 
-	pci_device = me_find_pci_dev(dev, it);
-	if (!pci_device)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pci_device->dev);
-	board = (struct me_board *)dev->board_ptr;
-
 	/* Enable PCI device and request PCI regions */
-	if (comedi_pci_enable(pci_device, ME_DRIVER_NAME) < 0) {
+	if (comedi_pci_enable(pcidev, dev->board_name) < 0) {
 		printk(KERN_ERR "comedi%d: Failed to enable PCI device and "
 		       "request regions\n", dev->minor);
 		return -EIO;
 	}
 
-	/* Set data in device structure */
-	dev->board_name = board->name;
-
 	/* Read PLX register base address [PCI_BASE_ADDRESS #0]. */
-	plx_regbase_tmp = pci_resource_start(pci_device, 0);
-	plx_regbase_size_tmp = pci_resource_len(pci_device, 0);
+	plx_regbase_tmp = pci_resource_start(pcidev, 0);
+	plx_regbase_size_tmp = pci_resource_len(pcidev, 0);
 	dev_private->plx_regbase =
 	    ioremap(plx_regbase_tmp, plx_regbase_size_tmp);
 	dev_private->plx_regbase_size = plx_regbase_size_tmp;
@@ -687,8 +672,8 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* Read Swap base address [PCI_BASE_ADDRESS #5]. */
 
-	swap_regbase_tmp = pci_resource_start(pci_device, 5);
-	swap_regbase_size_tmp = pci_resource_len(pci_device, 5);
+	swap_regbase_tmp = pci_resource_start(pcidev, 5);
+	swap_regbase_size_tmp = pci_resource_len(pcidev, 5);
 
 	if (!swap_regbase_tmp)
 		printk(KERN_ERR "comedi%d: Swap not present\n", dev->minor);
@@ -702,20 +687,20 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			plx_regbase_tmp = swap_regbase_tmp;
 			swap_regbase_tmp = regbase_tmp;
 
-			result = pci_write_config_dword(pci_device,
+			result = pci_write_config_dword(pcidev,
 							PCI_BASE_ADDRESS_0,
 							plx_regbase_tmp);
 			if (result != PCIBIOS_SUCCESSFUL)
 				return -EIO;
 
-			result = pci_write_config_dword(pci_device,
+			result = pci_write_config_dword(pcidev,
 							PCI_BASE_ADDRESS_5,
 							swap_regbase_tmp);
 			if (result != PCIBIOS_SUCCESSFUL)
 				return -EIO;
 		} else {
 			plx_regbase_tmp -= 0x80;
-			result = pci_write_config_dword(pci_device,
+			result = pci_write_config_dword(pcidev,
 							PCI_BASE_ADDRESS_0,
 							plx_regbase_tmp);
 			if (result != PCIBIOS_SUCCESSFUL)
@@ -726,8 +711,8 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* Read Meilhaus register base address [PCI_BASE_ADDRESS #2]. */
 
-	me_regbase_tmp = pci_resource_start(pci_device, 2);
-	me_regbase_size_tmp = pci_resource_len(pci_device, 2);
+	me_regbase_tmp = pci_resource_start(pcidev, 2);
+	me_regbase_size_tmp = pci_resource_len(pcidev, 2);
 	dev_private->me_regbase_size = me_regbase_size_tmp;
 	dev_private->me_regbase = ioremap(me_regbase_tmp, me_regbase_size_tmp);
 	if (!dev_private->me_regbase) {
@@ -735,64 +720,55 @@ static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		       dev->minor);
 		return -ENOMEM;
 	}
+
 	/* Download firmware and reset card */
 	if (board->device_id == ME2600_DEVICE_ID) {
-		unsigned char *aux_data;
-		int aux_len;
-
-		aux_data = comedi_aux_data(it->options, 0);
-		aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
-
-		if (!aux_data || aux_len < 1) {
-			comedi_error(dev, "You must provide me2600 firmware "
-				     "using the --init-data option of "
-				     "comedi_config");
-			return -EINVAL;
-		}
-		me2600_xilinx_download(dev, aux_data, aux_len);
+		result = me2600_upload_firmware(dev);
+		if (result < 0)
+			return result;
 	}
-
 	me_reset(dev);
 
 	error = comedi_alloc_subdevices(dev, 3);
 	if (error)
 		return error;
 
-	subdevice = dev->subdevices + 0;
-	subdevice->type = COMEDI_SUBD_AI;
-	subdevice->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_CMD_READ;
-	subdevice->n_chan = board->ai_channel_nbr;
-	subdevice->maxdata = board->ai_resolution_mask;
-	subdevice->len_chanlist = board->ai_channel_nbr;
-	subdevice->range_table = board->ai_range_list;
-	subdevice->cancel = me_ai_cancel;
-	subdevice->insn_read = me_ai_insn_read;
-	subdevice->do_cmdtest = me_ai_do_cmd_test;
-	subdevice->do_cmd = me_ai_do_cmd;
-
-	subdevice = dev->subdevices + 1;
-	subdevice->type = COMEDI_SUBD_AO;
-	subdevice->subdev_flags = SDF_WRITEABLE | SDF_COMMON;
-	subdevice->n_chan = board->ao_channel_nbr;
-	subdevice->maxdata = board->ao_resolution_mask;
-	subdevice->len_chanlist = board->ao_channel_nbr;
-	subdevice->range_table = board->ao_range_list;
-	subdevice->insn_read = me_ao_insn_read;
-	subdevice->insn_write = me_ao_insn_write;
-
-	subdevice = dev->subdevices + 2;
-	subdevice->type = COMEDI_SUBD_DIO;
-	subdevice->subdev_flags = SDF_READABLE | SDF_WRITEABLE;
-	subdevice->n_chan = board->dio_channel_nbr;
-	subdevice->maxdata = 1;
-	subdevice->len_chanlist = board->dio_channel_nbr;
-	subdevice->range_table = &range_digital;
-	subdevice->insn_bits = me_dio_insn_bits;
-	subdevice->insn_config = me_dio_insn_config;
-	subdevice->io_bits = 0;
-
-	printk(KERN_INFO "comedi%d: " ME_DRIVER_NAME " attached.\n",
-	       dev->minor);
+	s = &dev->subdevices[0];
+	s->type = COMEDI_SUBD_AI;
+	s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_CMD_READ;
+	s->n_chan = board->ai_channel_nbr;
+	s->maxdata = board->ai_resolution_mask;
+	s->len_chanlist = board->ai_channel_nbr;
+	s->range_table = board->ai_range_list;
+	s->cancel = me_ai_cancel;
+	s->insn_read = me_ai_insn_read;
+	s->do_cmdtest = me_ai_do_cmd_test;
+	s->do_cmd = me_ai_do_cmd;
+
+	s = &dev->subdevices[1];
+	s->type = COMEDI_SUBD_AO;
+	s->subdev_flags = SDF_WRITEABLE | SDF_COMMON;
+	s->n_chan = board->ao_channel_nbr;
+	s->maxdata = board->ao_resolution_mask;
+	s->len_chanlist = board->ao_channel_nbr;
+	s->range_table = board->ao_range_list;
+	s->insn_read = me_ao_insn_read;
+	s->insn_write = me_ao_insn_write;
+
+	s = &dev->subdevices[2];
+	s->type = COMEDI_SUBD_DIO;
+	s->subdev_flags = SDF_READABLE | SDF_WRITEABLE;
+	s->n_chan = board->dio_channel_nbr;
+	s->maxdata = 1;
+	s->len_chanlist = board->dio_channel_nbr;
+	s->range_table = &range_digital;
+	s->insn_bits = me_dio_insn_bits;
+	s->insn_config = me_dio_insn_config;
+	s->io_bits = 0;
+
+	dev_info(dev->class_dev, "%s: %s attached\n",
+		dev->driver->driver_name, dev->board_name);
+
 	return 0;
 }
 
@@ -818,7 +794,7 @@ static void me_detach(struct comedi_device *dev)
 static struct comedi_driver me_daq_driver = {
 	.driver_name	= "me_daq",
 	.module		= THIS_MODULE,
-	.attach		= me_attach,
+	.attach_pci	= me_attach_pci,
 	.detach		= me_detach,
 };
 
@@ -851,3 +827,4 @@ module_comedi_pci_driver(me_daq_driver, me_daq_pci_driver);
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(ME2600_FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c
index a93166d6a8f..e27850f628c 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -49,6 +49,8 @@
 
 /* #define USE_KMALLOC */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include "mite.h"
 
 #include "comedi_fc.h"
@@ -59,52 +61,38 @@
 #define PCI_DAQ_SIZE		4096
 #define PCI_DAQ_SIZE_660X       8192
 
-struct mite_struct *mite_devices;
-EXPORT_SYMBOL(mite_devices);
-
 #define TOP_OF_PAGE(x) ((x)|(~(PAGE_MASK)))
 
-void mite_init(void)
+struct mite_struct *mite_alloc(struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = NULL;
 	struct mite_struct *mite;
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor == PCI_VENDOR_ID_NI) {
-			unsigned i;
-
-			mite = kzalloc(sizeof(*mite), GFP_KERNEL);
-			if (!mite) {
-				printk(KERN_ERR "mite: allocation failed\n");
-				pci_dev_put(pcidev);
-				return;
-			}
-			spin_lock_init(&mite->lock);
-			mite->pcidev = pci_dev_get(pcidev);
-			for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) {
-				mite->channels[i].mite = mite;
-				mite->channels[i].channel = i;
-				mite->channels[i].done = 1;
-			}
-			mite->next = mite_devices;
-			mite_devices = mite;
+	unsigned int i;
+
+	mite = kzalloc(sizeof(*mite), GFP_KERNEL);
+	if (mite) {
+		spin_lock_init(&mite->lock);
+		mite->pcidev = pcidev;
+		for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) {
+			mite->channels[i].mite = mite;
+			mite->channels[i].channel = i;
+			mite->channels[i].done = 1;
 		}
 	}
+	return mite;
 }
+EXPORT_SYMBOL(mite_alloc);
 
 static void dump_chip_signature(u32 csigr_bits)
 {
-	printk(KERN_INFO "mite: version = %i, type = %i, mite mode = %i,"
-	       "interface mode = %i\n",
-	       mite_csigr_version(csigr_bits), mite_csigr_type(csigr_bits),
-	       mite_csigr_mmode(csigr_bits), mite_csigr_imode(csigr_bits));
-	printk(KERN_INFO "mite: num channels = %i, write post fifo depth = %i,"
-	       "wins = %i, iowins = %i\n",
-	       mite_csigr_dmac(csigr_bits), mite_csigr_wpdep(csigr_bits),
-	       mite_csigr_wins(csigr_bits), mite_csigr_iowins(csigr_bits));
+	pr_info("version = %i, type = %i, mite mode = %i, interface mode = %i\n",
+		mite_csigr_version(csigr_bits), mite_csigr_type(csigr_bits),
+		mite_csigr_mmode(csigr_bits), mite_csigr_imode(csigr_bits));
+	pr_info("num channels = %i, write post fifo depth = %i, wins = %i, iowins = %i\n",
+		mite_csigr_dmac(csigr_bits), mite_csigr_wpdep(csigr_bits),
+		mite_csigr_wins(csigr_bits), mite_csigr_iowins(csigr_bits));
 }
 
-unsigned mite_fifo_size(struct mite_struct *mite, unsigned channel)
+static unsigned mite_fifo_size(struct mite_struct *mite, unsigned channel)
 {
 	unsigned fcr_bits = readl(mite->mite_io_addr + MITE_FCR(channel));
 	unsigned empty_count = (fcr_bits >> 16) & 0xff;
@@ -121,7 +109,8 @@ int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1)
 	unsigned unknown_dma_burst_bits;
 
 	if (comedi_pci_enable(mite->pcidev, "mite")) {
-		printk(KERN_ERR "error enabling mite and requesting io regions\n");
+		dev_err(&mite->pcidev->dev,
+			"error enabling mite and requesting io regions\n");
 		return -EIO;
 	}
 	pci_set_master(mite->pcidev);
@@ -130,11 +119,10 @@ int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1)
 	mite->mite_phys_addr = addr;
 	mite->mite_io_addr = ioremap(addr, PCI_MITE_SIZE);
 	if (!mite->mite_io_addr) {
-		printk(KERN_ERR "Failed to remap mite io memory address\n");
+		dev_err(&mite->pcidev->dev,
+			"Failed to remap mite io memory address\n");
 		return -ENOMEM;
 	}
-	printk(KERN_INFO "MITE:0x%08llx mapped to %p ",
-	       (unsigned long long)mite->mite_phys_addr, mite->mite_io_addr);
 
 	addr = pci_resource_start(mite->pcidev, 1);
 	mite->daq_phys_addr = addr;
@@ -145,15 +133,15 @@ int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1)
 	 */
 	mite->daq_io_addr = ioremap(mite->daq_phys_addr, length);
 	if (!mite->daq_io_addr) {
-		printk(KERN_ERR "Failed to remap daq io memory address\n");
+		dev_err(&mite->pcidev->dev,
+			"Failed to remap daq io memory address\n");
 		return -ENOMEM;
 	}
-	printk(KERN_INFO "DAQ:0x%08llx mapped to %p\n",
-	       (unsigned long long)mite->daq_phys_addr, mite->daq_io_addr);
 
 	if (use_iodwbsr_1) {
 		writel(0, mite->mite_io_addr + MITE_IODWBSR);
-		printk(KERN_INFO "mite: using I/O Window Base Size register 1\n");
+		dev_info(&mite->pcidev->dev,
+			 "using I/O Window Base Size register 1\n");
 		writel(mite->daq_phys_addr | WENAB |
 		       MITE_IODWBSR_1_WSIZE_bits(length),
 		       mite->mite_io_addr + MITE_IODWBSR_1);
@@ -178,9 +166,9 @@ int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1)
 	csigr_bits = readl(mite->mite_io_addr + MITE_CSIGR);
 	mite->num_channels = mite_csigr_dmac(csigr_bits);
 	if (mite->num_channels > MAX_MITE_DMA_CHANNELS) {
-		printk(KERN_WARNING "mite: bug? chip claims to have %i dma "
-		       "channels. Setting to %i.\n",
-		       mite->num_channels, MAX_MITE_DMA_CHANNELS);
+		dev_warn(&mite->pcidev->dev,
+			 "mite: bug? chip claims to have %i dma channels. Setting to %i.\n",
+			 mite->num_channels, MAX_MITE_DMA_CHANNELS);
 		mite->num_channels = MAX_MITE_DMA_CHANNELS;
 	}
 	dump_chip_signature(csigr_bits);
@@ -193,9 +181,7 @@ int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1)
 		       mite->mite_io_addr + MITE_CHCR(i));
 	}
 	mite->fifo_size = mite_fifo_size(mite, 0);
-	printk(KERN_INFO "mite: fifo size is %i.\n", mite->fifo_size);
-	mite->used = 1;
-
+	dev_info(&mite->pcidev->dev, "fifo size is %i.\n", mite->fifo_size);
 	return 0;
 }
 EXPORT_SYMBOL(mite_setup2);
@@ -206,17 +192,6 @@ int mite_setup(struct mite_struct *mite)
 }
 EXPORT_SYMBOL(mite_setup);
 
-void mite_cleanup(void)
-{
-	struct mite_struct *mite, *next;
-
-	for (mite = mite_devices; mite; mite = next) {
-		pci_dev_put(mite->pcidev);
-		next = mite->next;
-		kfree(mite);
-	}
-}
-
 void mite_unsetup(struct mite_struct *mite)
 {
 	/* unsigned long offset, start, length; */
@@ -236,26 +211,43 @@ void mite_unsetup(struct mite_struct *mite)
 		comedi_pci_disable(mite->pcidev);
 		mite->mite_phys_addr = 0;
 	}
-
-	mite->used = 0;
 }
 EXPORT_SYMBOL(mite_unsetup);
 
-void mite_list_devices(void)
+struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite)
+{
+	struct mite_dma_descriptor_ring *ring =
+	    kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL);
+
+	if (ring == NULL)
+		return ring;
+	ring->hw_dev = get_device(&mite->pcidev->dev);
+	if (ring->hw_dev == NULL) {
+		kfree(ring);
+		return NULL;
+	}
+	ring->n_links = 0;
+	ring->descriptors = NULL;
+	ring->descriptors_dma_addr = 0;
+	return ring;
+};
+EXPORT_SYMBOL(mite_alloc_ring);
+
+void mite_free_ring(struct mite_dma_descriptor_ring *ring)
 {
-	struct mite_struct *mite, *next;
-
-	printk(KERN_INFO "Available NI device IDs:");
-	if (mite_devices)
-		for (mite = mite_devices; mite; mite = next) {
-			next = mite->next;
-			printk(KERN_INFO " 0x%04x", mite_device_id(mite));
-			if (mite->used)
-				printk(KERN_INFO "(used)");
+	if (ring) {
+		if (ring->descriptors) {
+			dma_free_coherent(ring->hw_dev,
+					  ring->n_links *
+					  sizeof(struct mite_dma_descriptor),
+					  ring->descriptors,
+					  ring->descriptors_dma_addr);
 		}
-	printk(KERN_INFO "\n");
-}
-EXPORT_SYMBOL(mite_list_devices);
+		put_device(ring->hw_dev);
+		kfree(ring);
+	}
+};
+EXPORT_SYMBOL(mite_free_ring);
 
 struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
 						   struct
@@ -317,7 +309,7 @@ void mite_dma_arm(struct mite_channel *mite_chan)
 	int chor;
 	unsigned long flags;
 
-	MDPRINTK("mite_dma_arm ch%i\n", channel);
+	MDPRINTK("mite_dma_arm ch%i\n", mite_chan->channel);
 	/*
 	 * memory barrier is intended to insure any twiddling with the buffer
 	 * is done before writing to the mite to arm dma transfer
@@ -365,7 +357,8 @@ int mite_buf_change(struct mite_dma_descriptor_ring *ring,
 			       n_links * sizeof(struct mite_dma_descriptor),
 			       &ring->descriptors_dma_addr, GFP_KERNEL);
 	if (!ring->descriptors) {
-		printk(KERN_ERR "mite: ring buffer allocation failed\n");
+		dev_err(async->subdevice->device->class_dev,
+			"mite: ring buffer allocation failed\n");
 		return -ENOMEM;
 	}
 	ring->n_links = n_links;
@@ -442,8 +435,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 		mcr |= CR_PSIZE32;
 		break;
 	default:
-		printk(KERN_WARNING "mite: bug! invalid mem bit width for dma "
-		       "transfer\n");
+		pr_warn("bug! invalid mem bit width for dma transfer\n");
 		break;
 	}
 	writel(mcr, mite->mite_io_addr + MITE_MCR(mite_chan->channel));
@@ -462,8 +454,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 		dcr |= CR_PSIZE32;
 		break;
 	default:
-		printk(KERN_WARNING "mite: bug! invalid dev bit width for dma "
-		       "transfer\n");
+		pr_warn("bug! invalid dev bit width for dma transfer\n");
 		break;
 	}
 	writel(dcr, mite->mite_io_addr + MITE_DCR(mite_chan->channel));
@@ -483,7 +474,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 }
 EXPORT_SYMBOL(mite_prep_dma);
 
-u32 mite_device_bytes_transferred(struct mite_channel *mite_chan)
+static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan)
 {
 	struct mite_struct *mite = mite_chan->mite;
 	return readl(mite->mite_io_addr + MITE_DAR(mite_chan->channel));
@@ -577,7 +568,8 @@ int mite_sync_input_dma(struct mite_channel *mite_chan,
 	nbytes = mite_bytes_written_to_memory_lb(mite_chan);
 	if ((int)(mite_bytes_written_to_memory_ub(mite_chan) -
 		  old_alloc_count) > 0) {
-		printk("mite: DMA overwrite of free area\n");
+		dev_warn(async->subdevice->device->class_dev,
+			 "mite: DMA overwrite of free area\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return -1;
 	}
@@ -621,7 +613,8 @@ int mite_sync_output_dma(struct mite_channel *mite_chan,
 	    (int)(nbytes_ub - stop_count) > 0)
 		nbytes_ub = stop_count;
 	if ((int)(nbytes_ub - old_alloc_count) > 0) {
-		printk(KERN_ERR "mite: DMA underrun\n");
+		dev_warn(async->subdevice->device->class_dev,
+			 "mite: DMA underrun\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return -1;
 	}
@@ -672,8 +665,6 @@ EXPORT_SYMBOL(mite_done);
 
 #ifdef DEBUG_MITE
 
-static void mite_decode(char **bit_str, unsigned int bits);
-
 /* names of bits in mite registers */
 
 static const char *const mite_CHOR_strings[] = {
@@ -743,86 +734,80 @@ static const char *const mite_CHSR_strings[] = {
 	"28", "lpauses", "30", "int",
 };
 
-void mite_dump_regs(struct mite_channel *mite_chan)
-{
-	unsigned long mite_io_addr =
-	    (unsigned long)mite_chan->mite->mite_io_addr;
-	unsigned long addr = 0;
-	unsigned long temp = 0;
-
-	printk(KERN_DEBUG "mite_dump_regs ch%i\n", mite_chan->channel);
-	printk(KERN_DEBUG "mite address is  =0x%08lx\n", mite_io_addr);
-
-	addr = mite_io_addr + MITE_CHOR(channel);
-	printk(KERN_DEBUG "mite status[CHOR]at 0x%08lx =0x%08lx\n", addr,
-	       temp = readl(addr));
-	mite_decode(mite_CHOR_strings, temp);
-	addr = mite_io_addr + MITE_CHCR(channel);
-	printk(KERN_DEBUG "mite status[CHCR]at 0x%08lx =0x%08lx\n", addr,
-	       temp = readl(addr));
-	mite_decode(mite_CHCR_strings, temp);
-	addr = mite_io_addr + MITE_TCR(channel);
-	printk(KERN_DEBUG "mite status[TCR] at 0x%08lx =0x%08x\n", addr,
-	       readl(addr));
-	addr = mite_io_addr + MITE_MCR(channel);
-	printk(KERN_DEBUG "mite status[MCR] at 0x%08lx =0x%08lx\n", addr,
-	       temp = readl(addr));
-	mite_decode(mite_MCR_strings, temp);
-
-	addr = mite_io_addr + MITE_MAR(channel);
-	printk(KERN_DEBUG "mite status[MAR] at 0x%08lx =0x%08x\n", addr,
-	       readl(addr));
-	addr = mite_io_addr + MITE_DCR(channel);
-	printk(KERN_DEBUG "mite status[DCR] at 0x%08lx =0x%08lx\n", addr,
-	       temp = readl(addr));
-	mite_decode(mite_DCR_strings, temp);
-	addr = mite_io_addr + MITE_DAR(channel);
-	printk(KERN_DEBUG "mite status[DAR] at 0x%08lx =0x%08x\n", addr,
-	       readl(addr));
-	addr = mite_io_addr + MITE_LKCR(channel);
-	printk(KERN_DEBUG "mite status[LKCR]at 0x%08lx =0x%08lx\n", addr,
-	       temp = readl(addr));
-	mite_decode(mite_LKCR_strings, temp);
-	addr = mite_io_addr + MITE_LKAR(channel);
-	printk(KERN_DEBUG "mite status[LKAR]at 0x%08lx =0x%08x\n", addr,
-	       readl(addr));
-	addr = mite_io_addr + MITE_CHSR(channel);
-	printk(KERN_DEBUG "mite status[CHSR]at 0x%08lx =0x%08lx\n", addr,
-	       temp = readl(addr));
-	mite_decode(mite_CHSR_strings, temp);
-	addr = mite_io_addr + MITE_FCR(channel);
-	printk(KERN_DEBUG "mite status[FCR] at 0x%08lx =0x%08x\n\n", addr,
-	       readl(addr));
-}
-EXPORT_SYMBOL(mite_dump_regs);
-
-static void mite_decode(char **bit_str, unsigned int bits)
+static void mite_decode(const char *const *bit_str, unsigned int bits)
 {
 	int i;
 
 	for (i = 31; i >= 0; i--) {
 		if (bits & (1 << i))
-			printk(KERN_DEBUG " %s", bit_str[i]);
+			pr_debug(" %s\n", bit_str[i]);
 	}
-	printk(KERN_DEBUG "\n");
 }
-EXPORT_SYMBOL(mite_decode);
-#endif
 
-#ifdef MODULE
-int __init init_module(void)
+void mite_dump_regs(struct mite_channel *mite_chan)
 {
-	mite_init();
-	mite_list_devices();
+	void __iomem *mite_io_addr = mite_chan->mite->mite_io_addr;
+	unsigned int offset;
+	unsigned int value;
+	int channel = mite_chan->channel;
+
+	pr_debug("mite_dump_regs ch%i\n", channel);
+	pr_debug("mite address is  =%p\n", mite_io_addr);
+
+	offset = MITE_CHOR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[CHOR] at 0x%08x =0x%08x\n", offset, value);
+	mite_decode(mite_CHOR_strings, value);
+	offset = MITE_CHCR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[CHCR] at 0x%08x =0x%08x\n", offset, value);
+	mite_decode(mite_CHCR_strings, value);
+	offset = MITE_TCR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[TCR] at 0x%08x =0x%08x\n", offset, value);
+	offset = MITE_MCR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[MCR] at 0x%08x =0x%08x\n", offset, value);
+	mite_decode(mite_MCR_strings, value);
+	offset = MITE_MAR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[MAR] at 0x%08x =0x%08x\n", offset, value);
+	offset = MITE_DCR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[DCR] at 0x%08x =0x%08x\n", offset, value);
+	mite_decode(mite_DCR_strings, value);
+	offset = MITE_DAR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[DAR] at 0x%08x =0x%08x\n", offset, value);
+	offset = MITE_LKCR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[LKCR] at 0x%08x =0x%08x\n", offset, value);
+	mite_decode(mite_LKCR_strings, value);
+	offset = MITE_LKAR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[LKAR] at 0x%08x =0x%08x\n", offset, value);
+	offset = MITE_CHSR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[CHSR] at 0x%08x =0x%08x\n", offset, value);
+	mite_decode(mite_CHSR_strings, value);
+	offset = MITE_FCR(channel);
+	value = readl(mite_io_addr + offset);
+	pr_debug("mite status[FCR] at 0x%08x =0x%08x\n", offset, value);
+}
+EXPORT_SYMBOL(mite_dump_regs);
+#endif
 
+static int __init mite_module_init(void)
+{
 	return 0;
 }
 
-void __exit cleanup_module(void)
+static void __exit mite_module_exit(void)
 {
-	mite_cleanup();
 }
-#endif
+
+module_init(mite_module_init);
+module_exit(mite_module_exit);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h
index 83f1b27a472..255b8ba9c91 100644
--- a/drivers/staging/comedi/drivers/mite.h
+++ b/drivers/staging/comedi/drivers/mite.h
@@ -25,15 +25,16 @@
 #define _MITE_H_
 
 #include <linux/pci.h>
+#include <linux/log2.h>
 #include "../comedidev.h"
 
 /*  #define DEBUG_MITE */
 #define PCIMIO_COMPAT
 
 #ifdef DEBUG_MITE
-#define MDPRINTK(format, args...)	printk(format , ## args)
+#define MDPRINTK(format, args...)	pr_debug(format , ## args)
 #else
-#define MDPRINTK(format, args...)
+#define MDPRINTK(format, args...)	do { } while (0)
 #endif
 
 #define MAX_MITE_DMA_CHANNELS 8
@@ -61,15 +62,11 @@ struct mite_channel {
 };
 
 struct mite_struct {
-	struct mite_struct *next;
-	int used;
-
 	struct pci_dev *pcidev;
 	resource_size_t mite_phys_addr;
 	void __iomem *mite_io_addr;
 	resource_size_t daq_phys_addr;
 	void __iomem *daq_io_addr;
-
 	struct mite_channel channels[MAX_MITE_DMA_CHANNELS];
 	short channel_allocated[MAX_MITE_DMA_CHANNELS];
 	int num_channels;
@@ -77,41 +74,12 @@ struct mite_struct {
 	spinlock_t lock;
 };
 
-static inline struct mite_dma_descriptor_ring *mite_alloc_ring(struct
-							       mite_struct
-							       *mite)
-{
-	struct mite_dma_descriptor_ring *ring =
-	    kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL);
-	if (ring == NULL)
-		return ring;
-	ring->hw_dev = get_device(&mite->pcidev->dev);
-	if (ring->hw_dev == NULL) {
-		kfree(ring);
-		return NULL;
-	}
-	ring->n_links = 0;
-	ring->descriptors = NULL;
-	ring->descriptors_dma_addr = 0;
-	return ring;
-};
-
-static inline void mite_free_ring(struct mite_dma_descriptor_ring *ring)
-{
-	if (ring) {
-		if (ring->descriptors) {
-			dma_free_coherent(ring->hw_dev,
-					  ring->n_links *
-					  sizeof(struct mite_dma_descriptor),
-					  ring->descriptors,
-					  ring->descriptors_dma_addr);
-		}
-		put_device(ring->hw_dev);
-		kfree(ring);
-	}
-};
+struct mite_struct *mite_alloc(struct pci_dev *pcidev);
 
-extern struct mite_struct *mite_devices;
+static inline void mite_free(struct mite_struct *mite)
+{
+	kfree(mite);
+}
 
 static inline unsigned int mite_irq(struct mite_struct *mite)
 {
@@ -123,12 +91,11 @@ static inline unsigned int mite_device_id(struct mite_struct *mite)
 	return mite->pcidev->device;
 };
 
-void mite_init(void);
-void mite_cleanup(void);
 int mite_setup(struct mite_struct *mite);
 int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1);
 void mite_unsetup(struct mite_struct *mite);
-void mite_list_devices(void);
+struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite);
+void mite_free_ring(struct mite_dma_descriptor_ring *ring);
 struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
 						   struct
 						   mite_dma_descriptor_ring
@@ -279,8 +246,9 @@ enum MITE_IODWBSR_bits {
 static inline unsigned MITE_IODWBSR_1_WSIZE_bits(unsigned size)
 {
 	unsigned order = 0;
-	while (size >>= 1)
-		++order;
+
+	BUG_ON(size == 0);
+	order = ilog2(size);
 	BUG_ON(order < 1);
 	return (order - 1) & 0x1f;
 }
@@ -427,12 +395,10 @@ static inline int CR_RL(unsigned int retry_limit)
 {
 	int value = 0;
 
-	while (retry_limit) {
-		retry_limit >>= 1;
-		value++;
-	}
+	if (retry_limit)
+		value = 1 + ilog2(retry_limit);
 	if (value > 0x7)
-		printk("comedi: bug! retry_limit too large\n");
+		value = 0x7;
 	return (value & 0x7) << 21;
 }
 
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
index b928b6763cd..f8b7faefc96 100644
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ b/drivers/staging/comedi/drivers/mpc624.c
@@ -353,7 +353,7 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_DIFF;
 	s->n_chan = 8;
diff --git a/drivers/staging/comedi/drivers/mpc8260cpm.c b/drivers/staging/comedi/drivers/mpc8260cpm.c
index a7fda8f01e8..c0c33299b7f 100644
--- a/drivers/staging/comedi/drivers/mpc8260cpm.c
+++ b/drivers/staging/comedi/drivers/mpc8260cpm.c
@@ -137,7 +137,7 @@ static int mpc8260cpm_attach(struct comedi_device *dev,
 		return ret;
 
 	for (i = 0; i < 4; i++) {
-		s = dev->subdevices + i;
+		s = &dev->subdevices[i];
 		s->type = COMEDI_SUBD_DIO;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 		s->n_chan = 32;
diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c
index eccbe1fb4f2..4625cb4d07c 100644
--- a/drivers/staging/comedi/drivers/multiq3.c
+++ b/drivers/staging/comedi/drivers/multiq3.c
@@ -204,8 +204,10 @@ static int multiq3_encoder_insn_read(struct comedi_device *dev,
 
 static void encoder_reset(struct comedi_device *dev)
 {
+	struct comedi_subdevice *s = &dev->subdevices[4];
 	int chan;
-	for (chan = 0; chan < dev->subdevices[4].n_chan; chan++) {
+
+	for (chan = 0; chan < s->n_chan; chan++) {
 		int control =
 		    MULTIQ3_CONTROL_MUST | MULTIQ3_AD_MUX_EN | (chan << 3);
 		outw(control, dev->iobase + MULTIQ3_CONTROL);
@@ -258,7 +260,7 @@ static int multiq3_attach(struct comedi_device *dev,
 	if (result < 0)
 		return result;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* ai subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -267,7 +269,7 @@ static int multiq3_attach(struct comedi_device *dev,
 	s->maxdata = 0x1fff;
 	s->range_table = &range_bipolar5;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* ao subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -277,7 +279,7 @@ static int multiq3_attach(struct comedi_device *dev,
 	s->maxdata = 0xfff;
 	s->range_table = &range_bipolar5;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* di subdevice */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -286,7 +288,7 @@ static int multiq3_attach(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->range_table = &range_digital;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* do subdevice */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -296,7 +298,7 @@ static int multiq3_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->state = 0;
 
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	/* encoder (counter) subdevice */
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_LSAMPL;
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index a80c52fb273..51295f32ee8 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -44,8 +44,11 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #include <linux/interrupt.h>
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "mite.h"
 
+#define DRIVER_NAME "ni_6527"
+
 #define NI6527_DIO_SIZE 4096
 #define NI6527_MITE_SIZE 4096
 
@@ -76,16 +79,6 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #define Rising_Edge_Detection_Enable(x)		(0x018+(x))
 #define Falling_Edge_Detection_Enable(x)	(0x020+(x))
 
-static int ni6527_attach(struct comedi_device *dev,
-			 struct comedi_devconfig *it);
-static void ni6527_detach(struct comedi_device *dev);
-static struct comedi_driver driver_ni6527 = {
-	.driver_name = "ni6527",
-	.module = THIS_MODULE,
-	.attach = ni6527_attach,
-	.detach = ni6527_detach,
-};
-
 struct ni6527_board {
 
 	int dev_id;
@@ -103,7 +96,6 @@ static const struct ni6527_board ni6527_boards[] = {
 	 },
 };
 
-#define n_ni6527_boards ARRAY_SIZE(ni6527_boards)
 #define this_board ((const struct ni6527_board *)dev->board_ptr)
 
 static DEFINE_PCI_DEVICE_TABLE(ni6527_pci_table) = {
@@ -122,8 +114,6 @@ struct ni6527_private {
 
 #define devpriv ((struct ni6527_private *)dev->private)
 
-static int ni6527_find_device(struct comedi_device *dev, int bus, int slot);
-
 static int ni6527_di_insn_config(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
@@ -212,7 +202,7 @@ static int ni6527_do_insn_bits(struct comedi_device *dev,
 static irqreturn_t ni6527_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 2;
+	struct comedi_subdevice *s = &dev->subdevices[2];
 	unsigned int status;
 
 	status = readb(devpriv->mite->daq_io_addr + Change_Status);
@@ -235,40 +225,20 @@ static int ni6527_intr_cmdtest(struct comedi_device *dev,
 			       struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
-
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_OTHER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_FOLLOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and */
-	/*         are mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -364,36 +334,53 @@ static int ni6527_intr_insn_config(struct comedi_device *dev,
 	return 2;
 }
 
-static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static const struct ni6527_board *
+ni6527_find_boardinfo(struct pci_dev *pcidev)
+{
+	unsigned int dev_id = pcidev->device;
+	unsigned int n;
+
+	for (n = 0; n < ARRAY_SIZE(ni6527_boards); n++) {
+		const struct ni6527_board *board = &ni6527_boards[n];
+		if (board->dev_id == dev_id)
+			return board;
+	}
+	return NULL;
+}
+
+static int __devinit ni6527_attach_pci(struct comedi_device *dev,
+				       struct pci_dev *pcidev)
 {
 	struct comedi_subdevice *s;
 	int ret;
 
-	printk(KERN_INFO "comedi%d: ni6527\n", dev->minor);
-
 	ret = alloc_private(dev, sizeof(struct ni6527_private));
 	if (ret < 0)
 		return ret;
 
-	ret = ni6527_find_device(dev, it->options[0], it->options[1]);
-	if (ret < 0)
-		return ret;
+	dev->board_ptr = ni6527_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+
+	devpriv->mite = mite_alloc(pcidev);
+	if (!devpriv->mite)
+		return -ENOMEM;
 
 	ret = mite_setup(devpriv->mite);
 	if (ret < 0) {
-		printk(KERN_ERR "comedi: error setting up mite\n");
+		dev_err(dev->class_dev, "error setting up mite\n");
 		return ret;
 	}
 
 	dev->board_name = this_board->name;
-	printk(KERN_INFO "comedi board: %s, ID=0x%02x\n", dev->board_name,
-		readb(devpriv->mite->daq_io_addr + ID_Register));
+	dev_info(dev->class_dev, "board: %s, ID=0x%02x\n", dev->board_name,
+		 readb(devpriv->mite->daq_io_addr + ID_Register));
 
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 24;
@@ -402,7 +389,7 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_config = ni6527_di_insn_config;
 	s->insn_bits = ni6527_di_insn_bits;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 24;
@@ -410,7 +397,7 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->maxdata = 1;
 	s->insn_bits = ni6527_do_insn_bits;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
@@ -432,9 +419,9 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
 
 	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
-			  IRQF_SHARED, "ni6527", dev);
+			  IRQF_SHARED, DRIVER_NAME, dev);
 	if (ret < 0)
-		printk(KERN_WARNING "comedi i6527 irq not available\n");
+		dev_warn(dev->class_dev, "irq not available\n");
 	else
 		dev->irq = mite_irq(devpriv->mite);
 
@@ -448,73 +435,37 @@ static void ni6527_detach(struct comedi_device *dev)
 		       devpriv->mite->daq_io_addr + Master_Interrupt_Control);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
-	if (devpriv && devpriv->mite)
+	if (devpriv && devpriv->mite) {
 		mite_unsetup(devpriv->mite);
-}
-
-static int ni6527_find_device(struct comedi_device *dev, int bus, int slot)
-{
-	struct mite_struct *mite;
-	int i;
-
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number ||
-			    slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-		for (i = 0; i < n_ni6527_boards; i++) {
-			if (mite_device_id(mite) == ni6527_boards[i].dev_id) {
-				dev->board_ptr = ni6527_boards + i;
-				devpriv->mite = mite;
-				return 0;
-			}
-		}
+		mite_free(devpriv->mite);
 	}
-	printk(KERN_ERR "comedi 6527: no device found\n");
-	mite_list_devices();
-	return -EIO;
 }
 
-static int __devinit driver_ni6527_pci_probe(struct pci_dev *dev,
-					     const struct pci_device_id *ent)
+static struct comedi_driver ni6527_driver = {
+	.driver_name = DRIVER_NAME,
+	.module = THIS_MODULE,
+	.attach_pci = ni6527_attach_pci,
+	.detach = ni6527_detach,
+};
+
+static int __devinit ni6527_pci_probe(struct pci_dev *dev,
+				      const struct pci_device_id *ent)
 {
-	return comedi_pci_auto_config(dev, &driver_ni6527);
+	return comedi_pci_auto_config(dev, &ni6527_driver);
 }
 
-static void __devexit driver_ni6527_pci_remove(struct pci_dev *dev)
+static void __devexit ni6527_pci_remove(struct pci_dev *dev)
 {
 	comedi_pci_auto_unconfig(dev);
 }
 
-static struct pci_driver driver_ni6527_pci_driver = {
+static struct pci_driver ni6527_pci_driver = {
+	.name = DRIVER_NAME,
 	.id_table = ni6527_pci_table,
-	.probe = &driver_ni6527_pci_probe,
-	.remove = __devexit_p(&driver_ni6527_pci_remove)
+	.probe = ni6527_pci_probe,
+	.remove = __devexit_p(ni6527_pci_remove)
 };
-
-static int __init driver_ni6527_init_module(void)
-{
-	int retval;
-
-	retval = comedi_driver_register(&driver_ni6527);
-	if (retval < 0)
-		return retval;
-
-	driver_ni6527_pci_driver.name = (char *)driver_ni6527.driver_name;
-	return pci_register_driver(&driver_ni6527_pci_driver);
-}
-
-static void __exit driver_ni6527_cleanup_module(void)
-{
-	pci_unregister_driver(&driver_ni6527_pci_driver);
-	comedi_driver_unregister(&driver_ni6527);
-}
-
-module_init(driver_ni6527_init_module);
-module_exit(driver_ni6527_cleanup_module);
+module_comedi_pci_driver(ni6527_driver, ni6527_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
index bce39f1ea36..2a73ff57a2f 100644
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ b/drivers/staging/comedi/drivers/ni_65xx.c
@@ -55,6 +55,7 @@ except maybe the 6514.
 #include <linux/slab.h>
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "mite.h"
 
 #define NI6514_DIO_SIZE 4096
@@ -109,18 +110,7 @@ static inline unsigned Filter_Enable(unsigned port)
 #define OverflowIntEnable		0x02
 #define EdgeIntEnable			0x01
 
-static int ni_65xx_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it);
-static void ni_65xx_detach(struct comedi_device *dev);
-static struct comedi_driver driver_ni_65xx = {
-	.driver_name = "ni_65xx",
-	.module = THIS_MODULE,
-	.attach = ni_65xx_attach,
-	.detach = ni_65xx_detach,
-};
-
 struct ni_65xx_board {
-
 	int dev_id;
 	const char *name;
 	unsigned num_dio_ports;
@@ -325,8 +315,6 @@ static struct ni_65xx_subdevice_private *ni_65xx_alloc_subdevice_private(void)
 	return subdev_private;
 }
 
-static int ni_65xx_find_device(struct comedi_device *dev, int bus, int slot);
-
 static int ni_65xx_config_filter(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
@@ -453,11 +441,9 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
 			writeb(bits,
 			       private(dev)->mite->daq_io_addr +
 			       Port_Data(port));
-/* printk("wrote 0x%x to port %i\n", bits, port); */
 		}
 		port_read_bits =
 		    readb(private(dev)->mite->daq_io_addr + Port_Data(port));
-/* printk("read 0x%x from port %i\n", port_read_bits, port); */
 		if (s->type == COMEDI_SUBD_DO && board(dev)->invert_outputs) {
 			/* Outputs inverted, so invert value read back from
 			 * DO subdevice.  (Does not apply to boards with DIO
@@ -478,7 +464,7 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
 static irqreturn_t ni_65xx_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 2;
+	struct comedi_subdevice *s = &dev->subdevices[2];
 	unsigned int status;
 
 	status = readb(private(dev)->mite->daq_io_addr + Change_Status);
@@ -501,40 +487,20 @@ static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
 				struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
-
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_OTHER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_FOLLOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually
-	compatible */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -644,41 +610,55 @@ static int ni_65xx_intr_insn_config(struct comedi_device *dev,
 	return 2;
 }
 
-static int ni_65xx_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static const struct ni_65xx_board *
+ni_65xx_find_boardinfo(struct pci_dev *pcidev)
+{
+	unsigned int dev_id = pcidev->device;
+	unsigned int n;
+
+	for (n = 0; n < ARRAY_SIZE(ni_65xx_boards); n++) {
+		const struct ni_65xx_board *board = &ni_65xx_boards[n];
+		if (board->dev_id == dev_id)
+			return board;
+	}
+	return NULL;
+}
+
+static int __devinit ni_65xx_attach_pci(struct comedi_device *dev,
+					struct pci_dev *pcidev)
 {
 	struct comedi_subdevice *s;
 	unsigned i;
 	int ret;
 
-	printk(KERN_INFO "comedi%d: ni_65xx:", dev->minor);
-
 	ret = alloc_private(dev, sizeof(struct ni_65xx_private));
 	if (ret < 0)
 		return ret;
 
-	ret = ni_65xx_find_device(dev, it->options[0], it->options[1]);
-	if (ret < 0)
-		return ret;
+	dev->board_ptr = ni_65xx_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+
+	private(dev)->mite = mite_alloc(pcidev);
+	if (!private(dev)->mite)
+		return -ENOMEM;
 
 	ret = mite_setup(private(dev)->mite);
 	if (ret < 0) {
-		printk(KERN_WARNING "error setting up mite\n");
+		dev_warn(dev->class_dev, "error setting up mite\n");
 		return ret;
 	}
 
 	dev->board_name = board(dev)->name;
 	dev->irq = mite_irq(private(dev)->mite);
-	printk(KERN_INFO " %s", dev->board_name);
-
-	printk(KERN_INFO " ID=0x%02x",
+	dev_info(dev->class_dev, "board: %s, ID=0x%02x", dev->board_name,
 	       readb(private(dev)->mite->daq_io_addr + ID_Register));
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	if (board(dev)->num_di_ports) {
 		s->type = COMEDI_SUBD_DI;
 		s->subdev_flags = SDF_READABLE;
@@ -696,7 +676,7 @@ static int ni_65xx_attach(struct comedi_device *dev,
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	if (board(dev)->num_do_ports) {
 		s->type = COMEDI_SUBD_DO;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -713,7 +693,7 @@ static int ni_65xx_attach(struct comedi_device *dev,
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	if (board(dev)->num_dio_ports) {
 		s->type = COMEDI_SUBD_DIO;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -737,7 +717,7 @@ static int ni_65xx_attach(struct comedi_device *dev,
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
@@ -772,11 +752,9 @@ static int ni_65xx_attach(struct comedi_device *dev,
 			  "ni_65xx", dev);
 	if (ret < 0) {
 		dev->irq = 0;
-		printk(KERN_WARNING " irq not available");
+		dev_warn(dev->class_dev, "irq not available\n");
 	}
 
-	printk("\n");
-
 	return 0;
 }
 
@@ -791,79 +769,46 @@ static void ni_65xx_detach(struct comedi_device *dev)
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (private(dev)) {
+		struct comedi_subdevice *s;
 		unsigned i;
+
 		for (i = 0; i < dev->n_subdevices; ++i) {
-			kfree(dev->subdevices[i].private);
-			dev->subdevices[i].private = NULL;
+			s = &dev->subdevices[i];
+			kfree(s->private);
+			s->private = NULL;
 		}
-		if (private(dev)->mite)
+		if (private(dev)->mite) {
 			mite_unsetup(private(dev)->mite);
-	}
-}
-
-static int ni_65xx_find_device(struct comedi_device *dev, int bus, int slot)
-{
-	struct mite_struct *mite;
-	int i;
-
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number ||
-			    slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-		for (i = 0; i < n_ni_65xx_boards; i++) {
-			if (mite_device_id(mite) == ni_65xx_boards[i].dev_id) {
-				dev->board_ptr = ni_65xx_boards + i;
-				private(dev)->mite = mite;
-				return 0;
-			}
+			mite_free(private(dev)->mite);
 		}
 	}
-	printk(KERN_WARNING "no device found\n");
-	mite_list_devices();
-	return -EIO;
 }
 
-static int __devinit driver_ni_65xx_pci_probe(struct pci_dev *dev,
-					      const struct pci_device_id *ent)
+static struct comedi_driver ni_65xx_driver = {
+	.driver_name = "ni_65xx",
+	.module = THIS_MODULE,
+	.attach_pci = ni_65xx_attach_pci,
+	.detach = ni_65xx_detach,
+};
+
+static int __devinit ni_65xx_pci_probe(struct pci_dev *dev,
+				       const struct pci_device_id *ent)
 {
-	return comedi_pci_auto_config(dev, &driver_ni_65xx);
+	return comedi_pci_auto_config(dev, &ni_65xx_driver);
 }
 
-static void __devexit driver_ni_65xx_pci_remove(struct pci_dev *dev)
+static void __devexit ni_65xx_pci_remove(struct pci_dev *dev)
 {
 	comedi_pci_auto_unconfig(dev);
 }
 
-static struct pci_driver driver_ni_65xx_pci_driver = {
+static struct pci_driver ni_65xx_pci_driver = {
+	.name = "ni_65xx",
 	.id_table = ni_65xx_pci_table,
-	.probe = &driver_ni_65xx_pci_probe,
-	.remove = __devexit_p(&driver_ni_65xx_pci_remove)
+	.probe = ni_65xx_pci_probe,
+	.remove = __devexit_p(ni_65xx_pci_remove)
 };
-
-static int __init driver_ni_65xx_init_module(void)
-{
-	int retval;
-
-	retval = comedi_driver_register(&driver_ni_65xx);
-	if (retval < 0)
-		return retval;
-
-	driver_ni_65xx_pci_driver.name = (char *)driver_ni_65xx.driver_name;
-	return pci_register_driver(&driver_ni_65xx_pci_driver);
-}
-
-static void __exit driver_ni_65xx_cleanup_module(void)
-{
-	pci_unregister_driver(&driver_ni_65xx_pci_driver);
-	comedi_driver_unregister(&driver_ni_65xx);
-}
-
-module_init(driver_ni_65xx_init_module);
-module_exit(driver_ni_65xx_cleanup_module);
+module_comedi_pci_driver(ni_65xx_driver, ni_65xx_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index 5e863ff343d..df2f3b0bab4 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -448,68 +448,46 @@ static inline struct ni_660x_private *private(struct comedi_device *dev)
 	return dev->private;
 }
 
-/* initialized in ni_660x_find_device() */
+/* initialized in ni_660x_attach_pci() */
 static inline const struct ni_660x_board *board(struct comedi_device *dev)
 {
 	return dev->board_ptr;
 }
 
-#define n_ni_660x_boards ARRAY_SIZE(ni_660x_boards)
-
-static int ni_660x_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it);
+static int ni_660x_attach_pci(struct comedi_device *dev,
+			      struct pci_dev *pcidev);
 static void ni_660x_detach(struct comedi_device *dev);
 static void init_tio_chip(struct comedi_device *dev, int chipset);
 static void ni_660x_select_pfi_output(struct comedi_device *dev,
 				      unsigned pfi_channel,
 				      unsigned output_select);
 
-static struct comedi_driver driver_ni_660x = {
+static struct comedi_driver ni_660x_driver = {
 	.driver_name = "ni_660x",
 	.module = THIS_MODULE,
-	.attach = ni_660x_attach,
+	.attach_pci = ni_660x_attach_pci,
 	.detach = ni_660x_detach,
 };
 
-static int __devinit driver_ni_660x_pci_probe(struct pci_dev *dev,
-					      const struct pci_device_id *ent)
+static int __devinit ni_660x_pci_probe(struct pci_dev *dev,
+				       const struct pci_device_id *ent)
 {
-	return comedi_pci_auto_config(dev, &driver_ni_660x);
+	return comedi_pci_auto_config(dev, &ni_660x_driver);
 }
 
-static void __devexit driver_ni_660x_pci_remove(struct pci_dev *dev)
+static void __devexit ni_660x_pci_remove(struct pci_dev *dev)
 {
 	comedi_pci_auto_unconfig(dev);
 }
 
-static struct pci_driver driver_ni_660x_pci_driver = {
+static struct pci_driver ni_660x_pci_driver = {
+	.name = "ni_660x",
 	.id_table = ni_660x_pci_table,
-	.probe = &driver_ni_660x_pci_probe,
-	.remove = __devexit_p(&driver_ni_660x_pci_remove)
+	.probe = ni_660x_pci_probe,
+	.remove = __devexit_p(ni_660x_pci_remove)
 };
+module_comedi_pci_driver(ni_660x_driver, ni_660x_pci_driver);
 
-static int __init driver_ni_660x_init_module(void)
-{
-	int retval;
-
-	retval = comedi_driver_register(&driver_ni_660x);
-	if (retval < 0)
-		return retval;
-
-	driver_ni_660x_pci_driver.name = (char *)driver_ni_660x.driver_name;
-	return pci_register_driver(&driver_ni_660x_pci_driver);
-}
-
-static void __exit driver_ni_660x_cleanup_module(void)
-{
-	pci_unregister_driver(&driver_ni_660x_pci_driver);
-	comedi_driver_unregister(&driver_ni_660x);
-}
-
-module_init(driver_ni_660x_init_module);
-module_exit(driver_ni_660x_cleanup_module);
-
-static int ni_660x_find_device(struct comedi_device *dev, int bus, int slot);
 static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan,
 				   unsigned source);
 
@@ -748,8 +726,6 @@ static enum NI_660x_Register ni_gpct_to_660x_register(enum ni_gpct_register reg)
 		ni_660x_register = G3InterruptEnable;
 		break;
 	default:
-		printk(KERN_WARNING "%s: unhandled register 0x%x in switch.\n",
-		       __func__, reg);
 		BUG();
 		return 0;
 		break;
@@ -773,8 +749,6 @@ static inline void ni_660x_write_register(struct comedi_device *dev,
 		writel(bits, write_address);
 		break;
 	default:
-		printk(KERN_WARNING "%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
-		       __FILE__, __func__, reg);
 		BUG();
 		break;
 	}
@@ -796,8 +770,6 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev,
 		return readl(read_address);
 		break;
 	default:
-		printk(KERN_WARNING "%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
-		       __FILE__, __func__, reg);
 		BUG();
 		break;
 	}
@@ -893,8 +865,8 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 	return 0;
 }
 
-void ni_660x_release_mite_channel(struct comedi_device *dev,
-				  struct ni_gpct *counter)
+static void ni_660x_release_mite_channel(struct comedi_device *dev,
+					 struct ni_gpct *counter)
 {
 	unsigned long flags;
 
@@ -985,7 +957,7 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d)
 	spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
 	smp_mb();
 	for (i = 0; i < ni_660x_num_counters(dev); ++i) {
-		s = dev->subdevices + NI_660X_GPCT_SUBDEV(i);
+		s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)];
 		ni_660x_handle_gpct_interrupt(dev, s);
 	}
 	spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
@@ -1062,28 +1034,43 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev)
 	}
 }
 
-static int ni_660x_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static const struct ni_660x_board *
+ni_660x_find_boardinfo(struct pci_dev *pcidev)
+{
+	unsigned int dev_id = pcidev->device;
+	unsigned int n;
+
+	for (n = 0; n < ARRAY_SIZE(ni_660x_boards); n++) {
+		const struct ni_660x_board *board = &ni_660x_boards[n];
+		if (board->dev_id == dev_id)
+			return board;
+	}
+	return NULL;
+}
+
+static int __devinit ni_660x_attach_pci(struct comedi_device *dev,
+					struct pci_dev *pcidev)
 {
 	struct comedi_subdevice *s;
 	int ret;
 	unsigned i;
 	unsigned global_interrupt_config_bits;
 
-	printk(KERN_INFO "comedi%d: ni_660x: ", dev->minor);
-
 	ret = ni_660x_allocate_private(dev);
 	if (ret < 0)
 		return ret;
-	ret = ni_660x_find_device(dev, it->options[0], it->options[1]);
-	if (ret < 0)
-		return ret;
+	dev->board_ptr = ni_660x_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+	private(dev)->mite = mite_alloc(pcidev);
+	if (!private(dev)->mite)
+		return -ENOMEM;
 
 	dev->board_name = board(dev)->name;
 
 	ret = mite_setup2(private(dev)->mite, 1);
 	if (ret < 0) {
-		printk(KERN_WARNING "error setting up mite\n");
+		dev_warn(dev->class_dev, "error setting up mite\n");
 		return ret;
 	}
 	comedi_set_hw_dev(dev, &private(dev)->mite->pcidev->dev);
@@ -1091,17 +1078,15 @@ static int ni_660x_attach(struct comedi_device *dev,
 	if (ret < 0)
 		return ret;
 
-	printk(KERN_INFO " %s ", dev->board_name);
-
 	ret = comedi_alloc_subdevices(dev, 2 + NI_660X_MAX_NUM_COUNTERS);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* Old GENERAL-PURPOSE COUNTER/TIME (GPCT) subdevice, no longer used */
 	s->type = COMEDI_SUBD_UNUSED;
 
-	s = dev->subdevices + NI_660X_DIO_SUBDEV;
+	s = &dev->subdevices[NI_660X_DIO_SUBDEV];
 	/* DIGITAL I/O SUBDEVICE */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -1124,7 +1109,7 @@ static int ni_660x_attach(struct comedi_device *dev,
 	if (private(dev)->counter_dev == NULL)
 		return -ENOMEM;
 	for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) {
-		s = dev->subdevices + NI_660X_GPCT_SUBDEV(i);
+		s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)];
 		if (i < ni_660x_num_counters(dev)) {
 			s->type = COMEDI_SUBD_COUNTER;
 			s->subdev_flags =
@@ -1174,7 +1159,7 @@ static int ni_660x_attach(struct comedi_device *dev,
 	ret = request_irq(mite_irq(private(dev)->mite), ni_660x_interrupt,
 			  IRQF_SHARED, "ni_660x", dev);
 	if (ret < 0) {
-		printk(KERN_WARNING " irq not available\n");
+		dev_warn(dev->class_dev, " irq not available\n");
 		return ret;
 	}
 	dev->irq = mite_irq(private(dev)->mite);
@@ -1183,7 +1168,7 @@ static int ni_660x_attach(struct comedi_device *dev,
 		global_interrupt_config_bits |= Cascade_Int_Enable_Bit;
 	ni_660x_write_register(dev, 0, global_interrupt_config_bits,
 			       GlobalInterruptConfigRegister);
-	printk(KERN_INFO "attached\n");
+	dev_info(dev->class_dev, "ni_660x: %s attached\n", dev->board_name);
 	return 0;
 }
 
@@ -1197,6 +1182,7 @@ static void ni_660x_detach(struct comedi_device *dev)
 		if (private(dev)->mite) {
 			ni_660x_free_mite_rings(dev);
 			mite_unsetup(private(dev)->mite);
+			mite_free(private(dev)->mite);
 		}
 	}
 }
@@ -1240,33 +1226,6 @@ static int ni_660x_GPCT_winsn(struct comedi_device *dev,
 	return ni_tio_winsn(subdev_to_counter(s), insn, data);
 }
 
-static int ni_660x_find_device(struct comedi_device *dev, int bus, int slot)
-{
-	struct mite_struct *mite;
-	int i;
-
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number ||
-			    slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-
-		for (i = 0; i < n_ni_660x_boards; i++) {
-			if (mite_device_id(mite) == ni_660x_boards[i].dev_id) {
-				dev->board_ptr = ni_660x_boards + i;
-				private(dev)->mite = mite;
-				return 0;
-			}
-		}
-	}
-	printk(KERN_WARNING "no device found\n");
-	mite_list_devices();
-	return -EIO;
-}
-
 static int ni_660x_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index 9c57618f2c5..eac6dc047bb 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -187,37 +187,22 @@ static int ni_670x_dio_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int ni_670x_find_device(struct comedi_device *dev, int bus, int slot)
+static const struct ni_670x_board *
+ni_670x_find_boardinfo(struct pci_dev *pcidev)
 {
-	struct ni_670x_private *devpriv = dev->private;
-	struct mite_struct *mite;
-	int i;
-
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number
-			    || slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-
-		for (i = 0; i < ARRAY_SIZE(ni_670x_boards); i++) {
-			if (mite_device_id(mite) == ni_670x_boards[i].dev_id) {
-				dev->board_ptr = ni_670x_boards + i;
-				devpriv->mite = mite;
+	unsigned int dev_id = pcidev->device;
+	unsigned int n;
 
-				return 0;
-			}
-		}
+	for (n = 0; n < ARRAY_SIZE(ni_670x_boards); n++) {
+		const struct ni_670x_board *board = &ni_670x_boards[n];
+		if (board->dev_id == dev_id)
+			return board;
 	}
-	dev_warn(dev->class_dev, "no device found\n");
-	mite_list_devices();
-	return -EIO;
+	return NULL;
 }
 
-static int ni_670x_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
+static int __devinit ni_670x_attach_pci(struct comedi_device *dev,
+					struct pci_dev *pcidev)
 {
 	const struct ni_670x_board *thisboard;
 	struct ni_670x_private *devpriv;
@@ -229,10 +214,12 @@ static int ni_670x_attach(struct comedi_device *dev,
 	if (ret < 0)
 		return ret;
 	devpriv = dev->private;
-
-	ret = ni_670x_find_device(dev, it->options[0], it->options[1]);
-	if (ret < 0)
-		return ret;
+	dev->board_ptr = ni_670x_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+	devpriv->mite = mite_alloc(pcidev);
+	if (!devpriv->mite)
+		return -ENOMEM;
 	thisboard = comedi_board(dev);
 
 	ret = mite_setup(devpriv->mite);
@@ -241,13 +228,12 @@ static int ni_670x_attach(struct comedi_device *dev,
 		return ret;
 	}
 	dev->board_name = thisboard->name;
-	dev->irq = mite_irq(devpriv->mite);
 
 	ret = comedi_alloc_subdevices(dev, 2);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -271,7 +257,7 @@ static int ni_670x_attach(struct comedi_device *dev,
 	s->insn_write = &ni_670x_ao_winsn;
 	s->insn_read = &ni_670x_ao_rinsn;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* digital i/o subdevice */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -298,20 +284,20 @@ static void ni_670x_detach(struct comedi_device *dev)
 	struct comedi_subdevice *s;
 
 	if (dev->n_subdevices) {
-		s = dev->subdevices + 0;
+		s = &dev->subdevices[0];
 		if (s)
 			kfree(s->range_table_list);
 	}
-	if (devpriv && devpriv->mite)
+	if (devpriv && devpriv->mite) {
 		mite_unsetup(devpriv->mite);
-	if (dev->irq)
-		free_irq(dev->irq, dev);
+		mite_free(devpriv->mite);
+	}
 }
 
 static struct comedi_driver ni_670x_driver = {
 	.driver_name	= "ni_670x",
 	.module		= THIS_MODULE,
-	.attach		= ni_670x_attach,
+	.attach_pci	= ni_670x_attach_pci,
 	.detach		= ni_670x_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index b53a4286f8c..83950807b67 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -321,45 +321,23 @@ static int a2150_ai_cmdtest(struct comedi_device *dev,
 	int startChan;
 	int i;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually
-	 * compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -832,7 +810,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 
 	/* analog input subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_OTHER | SDF_CMD_READ;
diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 62c8c44a8d2..93938cec93e 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -358,7 +358,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -371,7 +371,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = &atao_ao_winsn;
 	s->insn_read = &atao_ao_rinsn;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* digital i/o subdevice */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -381,7 +381,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_bits = atao_dio_insn_bits;
 	s->insn_config = atao_dio_insn_config;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* caldac subdevice */
 	s->type = COMEDI_SUBD_CALIB;
 	s->subdev_flags = SDF_WRITABLE | SDF_INTERNAL;
@@ -390,7 +390,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_read = atao_calib_insn_read;
 	s->insn_write = atao_calib_insn_write;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* eeprom subdevice */
 	/* s->type=COMEDI_SUBD_EEPROM; */
 	s->type = COMEDI_SUBD_UNUSED;
diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c
index 6448373878e..cac25572f6b 100644
--- a/drivers/staging/comedi/drivers/ni_atmio.c
+++ b/drivers/staging/comedi/drivers/ni_atmio.c
@@ -489,7 +489,7 @@ static int ni_atmio_attach(struct comedi_device *dev,
 
 	/* generic E series stuff in ni_mio_common.c */
 
-	ret = ni_E_init(dev, it);
+	ret = ni_E_init(dev);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index 2c78d3dd242..e91a620f9db 100644
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -40,6 +40,7 @@ Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d)
 
 #include <linux/ioport.h>
 
+#include "comedi_fc.h"
 #include "8255.h"
 
 /* Configuration and Status Registers */
@@ -234,7 +235,7 @@ static void reset_atmio16d(struct comedi_device *dev)
 static irqreturn_t atmio16d_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 
 	comedi_buf_put(s->async, inw(dev->iobase + AD_FIFO_REG));
 
@@ -246,45 +247,26 @@ static int atmio16d_ai_cmdtest(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_cmd *cmd)
 {
-	int err = 0, tmp;
+	int err = 0;
 
-	/* make sure triggers are valid */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_FOLLOW | TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique & mutually compatible */
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_TIMER)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -724,7 +706,7 @@ static int atmio16d_attach(struct comedi_device *dev,
 	devpriv->dac1_coding = it->options[12];
 
 	/* setup sub-devices */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* ai subdevice */
 	s->type = COMEDI_SUBD_AI;
@@ -749,7 +731,7 @@ static int atmio16d_attach(struct comedi_device *dev,
 	}
 
 	/* ao subdevice */
-	s++;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->n_chan = 2;
@@ -775,7 +757,7 @@ static int atmio16d_attach(struct comedi_device *dev,
 	}
 
 	/* Digital I/O */
-	s++;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 	s->n_chan = 8;
@@ -785,7 +767,7 @@ static int atmio16d_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 
 	/* 8255 subdevice */
-	s++;
+	s = &dev->subdevices[3];
 	if (board->has_8255)
 		subdev_8255_init(dev, s, NULL, dev->iobase);
 	else
@@ -793,7 +775,7 @@ static int atmio16d_attach(struct comedi_device *dev,
 
 /* don't yet know how to deal with counter/timers */
 #if 0
-	s++;
+	s = &dev->subdevices[4];
 	/* do */
 	s->type = COMEDI_SUBD_TIMER;
 	s->n_chan = 0;
@@ -807,9 +789,12 @@ static int atmio16d_attach(struct comedi_device *dev,
 static void atmio16d_detach(struct comedi_device *dev)
 {
 	const struct atmio16_board_t *board = comedi_board(dev);
+	struct comedi_subdevice *s;
 
-	if (dev->subdevices && board->has_8255)
-		subdev_8255_cleanup(dev, dev->subdevices + 3);
+	if (dev->subdevices && board->has_8255) {
+		s = &dev->subdevices[3];
+		subdev_8255_cleanup(dev, s);
+	}
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	reset_atmio16d(dev);
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
index 83016b41185..2ba0ade45c6 100644
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ b/drivers/staging/comedi/drivers/ni_daq_700.c
@@ -1,6 +1,6 @@
 /*
  *     comedi/drivers/ni_daq_700.c
- *     Driver for DAQCard-700 DIO only
+ *     Driver for DAQCard-700 DIO/AI
  *     copied from 8255
  *
  *     COMEDI - Linux Control and Measurement Device Interface
@@ -29,14 +29,25 @@ Author: Fred Brooks <nsaspook@nsaspook.com>,
   based on ni_daq_dio24 by Daniel Vecino Castel <dvecino@able.es>
 Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700)
 Status: works
-Updated: Thu, 21 Feb 2008 12:07:20 +0000
+Updated: Wed, 19 Sep 2012 12:07:20 +0000
 
-The daqcard-700 appears in Comedi as a single digital I/O subdevice with
-16 channels.  The channel 0 corresponds to the daqcard-700's output
+The daqcard-700 appears in Comedi as a  digital I/O subdevice (0) with
+16 channels and a analog input subdevice (1) with 16 single-ended channels.
+
+Digital:  The channel 0 corresponds to the daqcard-700's output
 port, bit 0; channel 8 corresponds to the input port, bit 0.
 
-Direction configuration: channels 0-7 output, 8-15 input (8225 device
+Digital direction configuration: channels 0-7 output, 8-15 input (8225 device
 emu as port A output, port B input, port C N/A).
+
+Analog: The input  range is 0 to 4095 for -10 to +10 volts 
+IRQ is assigned but not used.
+
+Version 0.1	Original DIO only driver
+Version 0.2	DIO and basic AI analog input support on 16 se channels
+
+Manuals:	Register level:	http://www.ni.com/pdf/manuals/340698.pdf
+		User Manual:	http://www.ni.com/pdf/manuals/320676d.pdf
 */
 
 #include <linux/interrupt.h>
@@ -51,16 +62,29 @@ emu as port A output, port B input, port C N/A).
 
 static struct pcmcia_device *pcmcia_cur_dev;
 
-struct dio700_board {
+struct daq700_board {
 	const char *name;
 };
 
-#define DIO_W		0x04
-#define DIO_R		0x05
-
-static int subdev_700_insn(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_insn *insn,
-			   unsigned int *data)
+/* daqcard700 registers */
+#define DIO_W		0x04	/* WO 8bit */
+#define DIO_R		0x05	/* RO 8bit */
+#define CMD_R1		0x00	/* WO 8bit */
+#define CMD_R2		0x07	/* RW 8bit */
+#define CMD_R3		0x05	/* W0 8bit */
+#define STA_R1		0x00	/* RO 8bit */
+#define STA_R2		0x01	/* RO 8bit */
+#define ADFIFO_R	0x02	/* RO 16bit */
+#define ADCLEAR_R	0x01	/* WO 8bit */
+#define CDA_R0		0x08	/* RW 8bit */
+#define CDA_R1		0x09	/* RW 8bit */
+#define CDA_R2		0x0A	/* RW 8bit */
+#define CMO_R		0x0B	/* RO 8bit */
+#define TIC_R		0x06	/* WO 8bit */
+
+static int daq700_dio_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn, unsigned int *data)
 {
 	if (data[0]) {
 		s->state &= ~data[0];
@@ -76,7 +100,7 @@ static int subdev_700_insn(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int subdev_700_insn_config(struct comedi_device *dev,
+static int daq700_dio_insn_config(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn, unsigned int *data)
 {
@@ -97,9 +121,90 @@ static int subdev_700_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int daq700_ai_rinsn(struct comedi_device *dev,
+			   struct comedi_subdevice *s,
+			   struct comedi_insn *insn, unsigned int *data)
 {
-	const struct dio700_board *thisboard = comedi_board(dev);
+	int n, i, chan;
+	int d;
+	unsigned int status;
+	enum { TIMEOUT = 100 };
+
+	chan = CR_CHAN(insn->chanspec);
+	/* write channel to multiplexer */
+	/* set mask scan bit high to disable scanning */
+	outb(chan | 0x80, dev->iobase + CMD_R1);
+
+	/* convert n samples */
+	for (n = 0; n < insn->n; n++) {
+		/* trigger conversion with out0 L to H */
+		outb(0x00, dev->iobase + CMD_R2); /* enable ADC conversions */
+		outb(0x30, dev->iobase + CMO_R); /* mode 0 out0 L, from H */
+		/* mode 1 out0 H, L to H, start conversion */
+		outb(0x32, dev->iobase + CMO_R);
+		/* wait for conversion to end */
+		for (i = 0; i < TIMEOUT; i++) {
+			status = inb(dev->iobase + STA_R2);
+			if ((status & 0x03) != 0) {
+				dev_info(dev->class_dev,
+					 "Overflow/run Error\n");
+				return -EOVERFLOW;
+			}
+			status = inb(dev->iobase + STA_R1);
+			if ((status & 0x02) != 0) {
+				dev_info(dev->class_dev, "Data Error\n");
+				return -ENODATA;
+			}
+			if ((status & 0x11) == 0x01) {
+				/* ADC conversion complete */
+				break;
+			}
+			udelay(1);
+		}
+		if (i == TIMEOUT) {
+			dev_info(dev->class_dev,
+				 "timeout during ADC conversion\n");
+			return -ETIMEDOUT;
+		}
+		/* read data */
+		d = inw(dev->iobase + ADFIFO_R);
+		/* mangle the data as necessary */
+		/* Bipolar Offset Binary: 0 to 4095 for -10 to +10 */
+		d &= 0x0fff;
+		d ^= 0x0800;
+		data[n] = d;
+	}
+	return n;
+}
+
+/*
+ * Data acquisition is enabled.
+ * The counter 0 output is high.
+ * The I/O connector pin CLK1 drives counter 1 source.
+ * Multiple-channel scanning is disabled.
+ * All interrupts are disabled.
+ * The analog input range is set to +-10 V
+ * The analog input mode is single-ended.
+ * The analog input circuitry is initialized to channel 0.
+ * The A/D FIFO is cleared.
+ */
+static void daq700_ai_config(struct comedi_device *dev,
+			     struct comedi_subdevice *s)
+{			
+	unsigned long iobase = dev->iobase;
+
+	outb(0x80, iobase + CMD_R1);	/* disable scanning, ADC to chan 0 */
+	outb(0x00, iobase + CMD_R2);	/* clear all bits */
+	outb(0x00, iobase + CMD_R3);	/* set +-10 range */
+	outb(0x32, iobase + CMO_R);	/* config counter mode1, out0 to H */
+	outb(0x00, iobase + TIC_R);	/* clear counter interrupt */
+	outb(0x00, iobase + ADCLEAR_R);	/* clear the ADC FIFO */
+	inw(iobase + ADFIFO_R);		/* read 16bit junk from FIFO to clear */
+}
+
+static int daq700_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+{
+	const struct daq700_board *thisboard = comedi_board(dev);
 	struct comedi_subdevice *s;
 	struct pcmcia_device *link;
 	int ret;
@@ -116,23 +221,33 @@ static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = thisboard->name;
 
-	ret = comedi_alloc_subdevices(dev, 1);
+	ret = comedi_alloc_subdevices(dev, 2);
 	if (ret)
 		return ret;
 
 	/* DAQCard-700 dio */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_DIO;
 	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
 	s->n_chan	= 16;
 	s->range_table	= &range_digital;
 	s->maxdata	= 1;
-	s->insn_bits	= subdev_700_insn;
-	s->insn_config	= subdev_700_insn_config;
-
+	s->insn_bits	= daq700_dio_insn_bits;
+	s->insn_config	= daq700_dio_insn_config;
 	s->state	= 0;
 	s->io_bits	= 0x00ff;
 
+	/* DAQCard-700 ai */
+	s = &dev->subdevices[1];
+	s->type = COMEDI_SUBD_AI;
+	/* we support single-ended (ground)  */
+	s->subdev_flags = SDF_READABLE | SDF_GROUND;
+	s->n_chan = 16;
+	s->maxdata = (1 << 12) - 1;
+	s->range_table = &range_bipolar10;
+	s->insn_read = daq700_ai_rinsn;
+	daq700_ai_config(dev, s);
+
 	dev_info(dev->class_dev, "%s: %s, io 0x%lx\n",
 		dev->driver->driver_name,
 		dev->board_name,
@@ -141,12 +256,12 @@ static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	return 0;
 }
 
-static void dio700_detach(struct comedi_device *dev)
+static void daq700_detach(struct comedi_device *dev)
 {
 	/* nothing to cleanup */
 }
 
-static const struct dio700_board dio700_boards[] = {
+static const struct daq700_board daq700_boards[] = {
 	{
 		.name		= "daqcard-700",
 	}, {
@@ -154,17 +269,17 @@ static const struct dio700_board dio700_boards[] = {
 	},
 };
 
-static struct comedi_driver driver_dio700 = {
+static struct comedi_driver daq700_driver = {
 	.driver_name	= "ni_daq_700",
 	.module		= THIS_MODULE,
-	.attach		= dio700_attach,
-	.detach		= dio700_detach,
-	.board_name	= &dio700_boards[0].name,
-	.num_names	= ARRAY_SIZE(dio700_boards),
-	.offset		= sizeof(struct dio700_board),
+	.attach		= daq700_attach,
+	.detach		= daq700_detach,
+	.board_name	= &daq700_boards[0].name,
+	.num_names	= ARRAY_SIZE(daq700_boards),
+	.offset		= sizeof(struct daq700_board),
 };
 
-static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev,
+static int daq700_pcmcia_config_loop(struct pcmcia_device *p_dev,
 				void *priv_data)
 {
 	if (p_dev->config_index == 0)
@@ -173,14 +288,14 @@ static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev,
 	return pcmcia_request_io(p_dev);
 }
 
-static int dio700_cs_attach(struct pcmcia_device *link)
+static int daq700_cs_attach(struct pcmcia_device *link)
 {
 	int ret;
 
 	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_AUDIO |
 		CONF_AUTO_SET_IO;
 
-	ret = pcmcia_loop_config(link, dio700_pcmcia_config_loop, NULL);
+	ret = pcmcia_loop_config(link, daq700_pcmcia_config_loop, NULL);
 	if (ret)
 		goto failed;
 
@@ -199,52 +314,53 @@ failed:
 	return ret;
 }
 
-static void dio700_cs_detach(struct pcmcia_device *link)
+static void daq700_cs_detach(struct pcmcia_device *link)
 {
 	pcmcia_disable_device(link);
 	pcmcia_cur_dev = NULL;
 }
 
-static const struct pcmcia_device_id dio700_cs_ids[] = {
+static const struct pcmcia_device_id daq700_cs_ids[] = {
 	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x4743),
 	PCMCIA_DEVICE_NULL
 };
-MODULE_DEVICE_TABLE(pcmcia, dio700_cs_ids);
+MODULE_DEVICE_TABLE(pcmcia, daq700_cs_ids);
 
-static struct pcmcia_driver dio700_cs_driver = {
+static struct pcmcia_driver daq700_cs_driver = {
 	.name		= "ni_daq_700",
 	.owner		= THIS_MODULE,
-	.probe		= dio700_cs_attach,
-	.remove		= dio700_cs_detach,
-	.id_table	= dio700_cs_ids,
+	.probe		= daq700_cs_attach,
+	.remove		= daq700_cs_detach,
+	.id_table	= daq700_cs_ids,
 };
 
-static int __init dio700_cs_init(void)
+static int __init daq700_cs_init(void)
 {
 	int ret;
 
-	ret = comedi_driver_register(&driver_dio700);
+	ret = comedi_driver_register(&daq700_driver);
 	if (ret < 0)
 		return ret;
 
-	ret = pcmcia_register_driver(&dio700_cs_driver);
+	ret = pcmcia_register_driver(&daq700_cs_driver);
 	if (ret < 0) {
-		comedi_driver_unregister(&driver_dio700);
+		comedi_driver_unregister(&daq700_driver);
 		return ret;
 	}
 
 	return 0;
 }
-module_init(dio700_cs_init);
+module_init(daq700_cs_init);
 
-static void __exit dio700_cs_exit(void)
+static void __exit daq700_cs_exit(void)
 {
-	pcmcia_unregister_driver(&dio700_cs_driver);
-	comedi_driver_unregister(&driver_dio700);
+	pcmcia_unregister_driver(&daq700_cs_driver);
+	comedi_driver_unregister(&daq700_driver);
 }
-module_exit(dio700_cs_exit);
+module_exit(daq700_cs_exit);
 
 MODULE_AUTHOR("Fred Brooks <nsaspook@nsaspook.com>");
 MODULE_DESCRIPTION(
-	"Comedi driver for National Instruments PCMCIA DAQCard-700 DIO");
+	"Comedi driver for National Instruments PCMCIA DAQCard-700 DIO/AI");
+MODULE_VERSION("0.2.00");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
index e27cae0eb8a..0ca222bbcbe 100644
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c
@@ -164,7 +164,7 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 
 	/* 8255 dio */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	subdev_8255_init(dev, s, NULL, dev->iobase);
 
 	return 0;
@@ -172,8 +172,12 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static void dio24_detach(struct comedi_device *dev)
 {
-	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 0);
+	struct comedi_subdevice *s;
+
+	if (dev->subdevices) {
+		s = &dev->subdevices[0];
+		subdev_8255_cleanup(dev, s);
+	}
 	if (thisboard->bustype != pcmcia_bustype && dev->iobase)
 		release_region(dev->iobase, DIO24_SIZE);
 	if (dev->irq)
@@ -304,7 +308,7 @@ MODULE_DESCRIPTION("Comedi driver for National Instruments "
 		   "PCMCIA DAQ-Card DIO-24");
 MODULE_LICENSE("GPL");
 
-struct pcmcia_driver dio24_cs_driver = {
+static struct pcmcia_driver dio24_cs_driver = {
 	.probe = dio24_cs_attach,
 	.remove = dio24_cs_detach,
 	.suspend = dio24_cs_suspend,
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index ab8b787c78b..28b91a6c378 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -73,9 +73,6 @@ NI manuals:
 
 */
 
-#undef LABPC_DEBUG
-/* #define LABPC_DEBUG    enable debugging messages */
-
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/io.h>
@@ -209,7 +206,13 @@ NI manuals:
 #define   INIT_A1_BITS	0x70
 #define COUNTER_B_BASE_REG	0x18
 
-static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it);
+enum scan_mode {
+	MODE_SINGLE_CHAN,
+	MODE_SINGLE_CHAN_INTERVAL,
+	MODE_MULT_CHAN_UP,
+	MODE_MULT_CHAN_DOWN,
+};
+
 static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s);
 static irqreturn_t labpc_interrupt(int irq, void *d);
 static int labpc_drain_fifo(struct comedi_device *dev);
@@ -240,12 +243,10 @@ static int labpc_eeprom_write_insn(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
 				   struct comedi_insn *insn,
 				   unsigned int *data);
-static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd);
+static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
+			     enum scan_mode scan_mode);
 #ifdef CONFIG_ISA_DMA_API
-static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd);
-#endif
-#ifdef CONFIG_COMEDI_PCI_DRIVERS
-static int labpc_find_device(struct comedi_device *dev, int bus, int slot);
+static unsigned int labpc_suggest_transfer_size(const struct comedi_cmd *cmd);
 #endif
 static int labpc_dio_mem_callback(int dir, int port, int data,
 				  unsigned long arg);
@@ -261,13 +262,6 @@ static int labpc_eeprom_write(struct comedi_device *dev,
 static void write_caldac(struct comedi_device *dev, unsigned int channel,
 			 unsigned int value);
 
-enum scan_mode {
-	MODE_SINGLE_CHAN,
-	MODE_SINGLE_CHAN_INTERVAL,
-	MODE_MULT_CHAN_UP,
-	MODE_MULT_CHAN_DOWN,
-};
-
 /* analog input ranges */
 #define NUM_LABPC_PLUS_AI_RANGES 16
 /* indicates unipolar ranges */
@@ -416,12 +410,12 @@ static inline void labpc_outb(unsigned int byte, unsigned long address)
 
 static inline unsigned int labpc_readb(unsigned long address)
 {
-	return readb((void *)address);
+	return readb((void __iomem *)address);
 }
 
 static inline void labpc_writeb(unsigned int byte, unsigned long address)
 {
-	writeb(byte, (void *)address);
+	writeb(byte, (void __iomem *)address);
 }
 
 static const struct labpc_board_struct labpc_boards[] = {
@@ -495,33 +489,14 @@ static const int sample_size = 2;
 
 #define devpriv ((struct labpc_private *)dev->private)
 
-static struct comedi_driver driver_labpc = {
-	.driver_name = DRV_NAME,
-	.module = THIS_MODULE,
-	.attach = labpc_attach,
-	.detach = labpc_common_detach,
-	.num_names = ARRAY_SIZE(labpc_boards),
-	.board_name = &labpc_boards[0].name,
-	.offset = sizeof(struct labpc_board_struct),
-};
-
-#ifdef CONFIG_COMEDI_PCI_DRIVERS
-static DEFINE_PCI_DEVICE_TABLE(labpc_pci_table) = {
-	{PCI_DEVICE(PCI_VENDOR_ID_NI, 0x161)},
-	{0}
-};
-
-MODULE_DEVICE_TABLE(pci, labpc_pci_table);
-#endif /* CONFIG_COMEDI_PCI_DRIVERS */
-
 static inline int labpc_counter_load(struct comedi_device *dev,
 				     unsigned long base_address,
 				     unsigned int counter_number,
 				     unsigned int count, unsigned int mode)
 {
 	if (thisboard->memory_mapped_io)
-		return i8254_mm_load((void *)base_address, 0, counter_number,
-				     count, mode);
+		return i8254_mm_load((void __iomem *)base_address, 0,
+				     counter_number, count, mode);
 	else
 		return i8254_load(base_address, 0, counter_number, count, mode);
 }
@@ -538,25 +513,16 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 	short lsb, msb;
 	int ret;
 
-	printk(KERN_ERR "comedi%d: ni_labpc: %s, io 0x%lx", dev->minor,
-								thisboard->name,
-	       iobase);
-	if (irq)
-		printk(", irq %u", irq);
-	if (dma_chan)
-		printk(", dma %u", dma_chan);
-	printk("\n");
-
+	dev_info(dev->class_dev, "ni_labpc: %s\n", thisboard->name);
 	if (iobase == 0) {
-		printk(KERN_ERR "io base address is zero!\n");
+		dev_err(dev->class_dev, "io base address is zero!\n");
 		return -EINVAL;
 	}
 	/*  request io regions for isa boards */
 	if (thisboard->bustype == isa_bustype) {
 		/* check if io addresses are available */
-		if (!request_region(iobase, LABPC_SIZE,
-				    driver_labpc.driver_name)) {
-			printk(KERN_ERR "I/O port conflict\n");
+		if (!request_region(iobase, LABPC_SIZE, DRV_NAME)) {
+			dev_err(dev->class_dev, "I/O port conflict\n");
 			return -EIO;
 		}
 	}
@@ -588,8 +554,9 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 		    || thisboard->bustype == pcmcia_bustype)
 			isr_flags |= IRQF_SHARED;
 		if (request_irq(irq, labpc_interrupt, isr_flags,
-				driver_labpc.driver_name, dev)) {
-			printk(KERN_ERR "unable to allocate irq %u\n", irq);
+				DRV_NAME, dev)) {
+			dev_err(dev->class_dev, "unable to allocate irq %u\n",
+				irq);
 			return -EINVAL;
 		}
 	}
@@ -598,19 +565,21 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 #ifdef CONFIG_ISA_DMA_API
 	/* grab dma channel */
 	if (dma_chan > 3) {
-		printk(KERN_ERR " invalid dma channel %u\n", dma_chan);
+		dev_err(dev->class_dev, "invalid dma channel %u\n", dma_chan);
 		return -EINVAL;
 	} else if (dma_chan) {
 		/* allocate dma buffer */
 		devpriv->dma_buffer =
 		    kmalloc(dma_buffer_size, GFP_KERNEL | GFP_DMA);
 		if (devpriv->dma_buffer == NULL) {
-			printk(KERN_ERR " failed to allocate dma buffer\n");
+			dev_err(dev->class_dev,
+				"failed to allocate dma buffer\n");
 			return -ENOMEM;
 		}
-		if (request_dma(dma_chan, driver_labpc.driver_name)) {
-			printk(KERN_ERR " failed to allocate dma channel %u\n",
-			       dma_chan);
+		if (request_dma(dma_chan, DRV_NAME)) {
+			dev_err(dev->class_dev,
+				"failed to allocate dma channel %u\n",
+				dma_chan);
 			return -EINVAL;
 		}
 		devpriv->dma_chan = dma_chan;
@@ -628,7 +597,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 		return ret;
 
 	/* analog input subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags =
@@ -643,7 +612,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 	s->cancel = labpc_cancel;
 
 	/* analog output */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	if (thisboard->has_ao) {
 		/*
 		 * Could provide command support, except it only has a
@@ -670,7 +639,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 	}
 
 	/* 8255 dio */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/*  if board uses io memory we have to give a custom callback
 	 * function to the 8255 driver */
 	if (thisboard->memory_mapped_io)
@@ -680,7 +649,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 		subdev_8255_init(dev, s, NULL, dev->iobase + DIO_BASE_REG);
 
 	/*  calibration subdevices for boards that have one */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	if (thisboard->register_layout == labpc_1200_layout) {
 		s->type = COMEDI_SUBD_CALIB;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
@@ -695,7 +664,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 		s->type = COMEDI_SUBD_UNUSED;
 
 	/* EEPROM */
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	if (thisboard->register_layout == labpc_1200_layout) {
 		s->type = COMEDI_SUBD_MEMORY;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
@@ -706,12 +675,6 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 
 		for (i = 0; i < EEPROM_SIZE; i++)
 			devpriv->eeprom_data[i] = labpc_eeprom_read(dev, i);
-#ifdef LABPC_DEBUG
-		printk(KERN_ERR " eeprom:");
-		for (i = 0; i < EEPROM_SIZE; i++)
-			printk(" %i:0x%x ", i, devpriv->eeprom_data[i]);
-		printk("\n");
-#endif
 	} else
 		s->type = COMEDI_SUBD_UNUSED;
 
@@ -719,14 +682,52 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 }
 EXPORT_SYMBOL_GPL(labpc_common_attach);
 
+static const struct labpc_board_struct *
+labpc_pci_find_boardinfo(struct pci_dev *pcidev)
+{
+	unsigned int device_id = pcidev->device;
+	unsigned int n;
+
+	for (n = 0; n < ARRAY_SIZE(labpc_boards); n++) {
+		const struct labpc_board_struct *board = &labpc_boards[n];
+		if (board->bustype == pci_bustype &&
+		    board->device_id == device_id)
+			return board;
+	}
+	return NULL;
+}
+
+static int __devinit labpc_attach_pci(struct comedi_device *dev,
+				      struct pci_dev *pcidev)
+{
+	unsigned long iobase;
+	unsigned int irq;
+	int ret;
+
+	if (!IS_ENABLED(CONFIG_COMEDI_PCI_DRIVERS))
+		return -ENODEV;
+	ret = alloc_private(dev, sizeof(struct labpc_private));
+	if (ret < 0)
+		return ret;
+	dev->board_ptr = labpc_pci_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+	devpriv->mite = mite_alloc(pcidev);
+	if (!devpriv->mite)
+		return -ENOMEM;
+	ret = mite_setup(devpriv->mite);
+	if (ret < 0)
+		return ret;
+	iobase = (unsigned long)devpriv->mite->daq_io_addr;
+	irq = mite_irq(devpriv->mite);
+	return labpc_common_attach(dev, iobase, irq, 0);
+}
+
 static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	unsigned long iobase = 0;
 	unsigned int irq = 0;
 	unsigned int dma_chan = 0;
-#ifdef CONFIG_COMEDI_PCI_DRIVERS
-	int retval;
-#endif
 
 	/* allocate and initialize dev->private */
 	if (alloc_private(dev, sizeof(struct labpc_private)) < 0)
@@ -740,34 +741,26 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		dma_chan = it->options[2];
 #else
-		printk(KERN_ERR " this driver has not been built with ISA DMA "
-								"support.\n");
+		dev_err(dev->class_dev,
+			"ni_labpc driver has not been built with ISA DMA support.\n");
 		return -EINVAL;
 #endif
 		break;
 	case pci_bustype:
 #ifdef CONFIG_COMEDI_PCI_DRIVERS
-		retval = labpc_find_device(dev, it->options[0], it->options[1]);
-		if (retval < 0)
-			return retval;
-		retval = mite_setup(devpriv->mite);
-		if (retval < 0)
-			return retval;
-		iobase = (unsigned long)devpriv->mite->daq_io_addr;
-		irq = mite_irq(devpriv->mite);
+		dev_err(dev->class_dev,
+			"manual configuration of PCI board '%s' is not supported\n",
+			thisboard->name);
+		return -EINVAL;
 #else
-		printk(KERN_ERR " this driver has not been built with PCI "
-								"support.\n");
+		dev_err(dev->class_dev,
+			"ni_labpc driver has not been built with PCI support.\n");
 		return -EINVAL;
 #endif
 		break;
-	case pcmcia_bustype:
-		printk
-		    (" this driver does not support pcmcia cards, use ni_labpc_cs.o\n");
-		return -EINVAL;
-		break;
 	default:
-		printk(KERN_ERR "bug! couldn't determine board type\n");
+		dev_err(dev->class_dev,
+			"ni_labpc: bug! couldn't determine board type\n");
 		return -EINVAL;
 		break;
 	}
@@ -775,42 +768,14 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	return labpc_common_attach(dev, iobase, irq, dma_chan);
 }
 
-/* adapted from ni_pcimio for finding mite based boards (pc-1200) */
-#ifdef CONFIG_COMEDI_PCI_DRIVERS
-static int labpc_find_device(struct comedi_device *dev, int bus, int slot)
-{
-	struct mite_struct *mite;
-	int i;
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-/* if bus/slot are specified then make sure we have the right bus/slot */
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number
-			    || slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-		for (i = 0; i < driver_labpc.num_names; i++) {
-			if (labpc_boards[i].bustype != pci_bustype)
-				continue;
-			if (mite_device_id(mite) == labpc_boards[i].device_id) {
-				devpriv->mite = mite;
-/* fixup board pointer, in case we were using the dummy "ni_labpc" entry */
-				dev->board_ptr = &labpc_boards[i];
-				return 0;
-			}
-		}
-	}
-	printk(KERN_ERR "no device found\n");
-	mite_list_devices();
-	return -EIO;
-}
-#endif
-
 void labpc_common_detach(struct comedi_device *dev)
 {
-	if (dev->subdevices)
-		subdev_8255_cleanup(dev, dev->subdevices + 2);
+	struct comedi_subdevice *s;
+
+	if (dev->subdevices) {
+		s = &dev->subdevices[2];
+		subdev_8255_cleanup(dev, s);
+	}
 #ifdef CONFIG_ISA_DMA_API
 	/* only free stuff if it has been allocated by _attach */
 	kfree(devpriv->dma_buffer);
@@ -822,8 +787,10 @@ void labpc_common_detach(struct comedi_device *dev)
 	if (thisboard->bustype == isa_bustype && dev->iobase)
 		release_region(dev->iobase, LABPC_SIZE);
 #ifdef CONFIG_COMEDI_PCI_DRIVERS
-	if (devpriv->mite)
+	if (devpriv->mite) {
 		mite_unsetup(devpriv->mite);
+		mite_free(devpriv->mite);
+	}
 #endif
 };
 EXPORT_SYMBOL_GPL(labpc_common_detach);
@@ -868,21 +835,19 @@ static enum scan_mode labpc_ai_scan_mode(const struct comedi_cmd *cmd)
 	if (CR_CHAN(cmd->chanlist[0]) > CR_CHAN(cmd->chanlist[1]))
 		return MODE_MULT_CHAN_DOWN;
 
-	printk(KERN_ERR "ni_labpc: bug! this should never happen\n");
-
+	pr_err("ni_labpc: bug! cannot determine AI scan mode\n");
 	return 0;
 }
 
 static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
-				     const struct comedi_cmd *cmd)
+				     const struct comedi_cmd *cmd,
+				     enum scan_mode mode)
 {
-	int mode, channel, range, aref, i;
+	int channel, range, aref, i;
 
 	if (cmd->chanlist == NULL)
 		return 0;
 
-	mode = labpc_ai_scan_mode(cmd);
-
 	if (mode == MODE_SINGLE_CHAN)
 		return 0;
 
@@ -924,7 +889,8 @@ static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
 			}
 			break;
 		default:
-			printk(KERN_ERR "ni_labpc: bug! in chanlist check\n");
+			dev_err(dev->class_dev,
+				"ni_labpc: bug! in chanlist check\n");
 			return 1;
 			break;
 		}
@@ -945,9 +911,10 @@ static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
 	return 0;
 }
 
-static int labpc_use_continuous_mode(const struct comedi_cmd *cmd)
+static int labpc_use_continuous_mode(const struct comedi_cmd *cmd,
+				     enum scan_mode mode)
 {
-	if (labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN)
+	if (mode == MODE_SINGLE_CHAN)
 		return 1;
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)
@@ -956,24 +923,25 @@ static int labpc_use_continuous_mode(const struct comedi_cmd *cmd)
 	return 0;
 }
 
-static unsigned int labpc_ai_convert_period(const struct comedi_cmd *cmd)
+static unsigned int labpc_ai_convert_period(const struct comedi_cmd *cmd,
+					    enum scan_mode mode)
 {
 	if (cmd->convert_src != TRIG_TIMER)
 		return 0;
 
-	if (labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN &&
-	    cmd->scan_begin_src == TRIG_TIMER)
+	if (mode == MODE_SINGLE_CHAN && cmd->scan_begin_src == TRIG_TIMER)
 		return cmd->scan_begin_arg;
 
 	return cmd->convert_arg;
 }
 
-static void labpc_set_ai_convert_period(struct comedi_cmd *cmd, unsigned int ns)
+static void labpc_set_ai_convert_period(struct comedi_cmd *cmd,
+					enum scan_mode mode, unsigned int ns)
 {
 	if (cmd->convert_src != TRIG_TIMER)
 		return;
 
-	if (labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN &&
+	if (mode == MODE_SINGLE_CHAN &&
 	    cmd->scan_begin_src == TRIG_TIMER) {
 		cmd->scan_begin_arg = ns;
 		if (cmd->convert_arg > cmd->scan_begin_arg)
@@ -982,25 +950,25 @@ static void labpc_set_ai_convert_period(struct comedi_cmd *cmd, unsigned int ns)
 		cmd->convert_arg = ns;
 }
 
-static unsigned int labpc_ai_scan_period(const struct comedi_cmd *cmd)
+static unsigned int labpc_ai_scan_period(const struct comedi_cmd *cmd,
+					enum scan_mode mode)
 {
 	if (cmd->scan_begin_src != TRIG_TIMER)
 		return 0;
 
-	if (labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN &&
-	    cmd->convert_src == TRIG_TIMER)
+	if (mode == MODE_SINGLE_CHAN && cmd->convert_src == TRIG_TIMER)
 		return 0;
 
 	return cmd->scan_begin_arg;
 }
 
-static void labpc_set_ai_scan_period(struct comedi_cmd *cmd, unsigned int ns)
+static void labpc_set_ai_scan_period(struct comedi_cmd *cmd,
+				     enum scan_mode mode, unsigned int ns)
 {
 	if (cmd->scan_begin_src != TRIG_TIMER)
 		return;
 
-	if (labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN &&
-	    cmd->convert_src == TRIG_TIMER)
+	if (mode == MODE_SINGLE_CHAN && cmd->convert_src == TRIG_TIMER)
 		return;
 
 	cmd->scan_begin_arg = ns;
@@ -1011,54 +979,33 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
 {
 	int err = 0;
 	int tmp, tmp2;
-	int stop_mask;
+	unsigned int stop_mask;
+	enum scan_mode mode;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
 	stop_mask = TRIG_COUNT | TRIG_NONE;
 	if (thisboard->register_layout == labpc_1200_layout)
 		stop_mask |= TRIG_EXT;
-	cmd->stop_src &= stop_mask;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->stop_src, stop_mask);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT &&
-	    cmd->stop_src != TRIG_EXT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	/* can't have external stop and start triggers at once */
 	if (cmd->start_src == TRIG_EXT && cmd->stop_src == TRIG_EXT)
@@ -1133,14 +1080,15 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
 
 	tmp = cmd->convert_arg;
 	tmp2 = cmd->scan_begin_arg;
-	labpc_adc_timing(dev, cmd);
+	mode = labpc_ai_scan_mode(cmd);
+	labpc_adc_timing(dev, cmd, mode);
 	if (tmp != cmd->convert_arg || tmp2 != cmd->scan_begin_arg)
 		err++;
 
 	if (err)
 		return 4;
 
-	if (labpc_ai_chanlist_invalid(dev, cmd))
+	if (labpc_ai_chanlist_invalid(dev, cmd, mode))
 		return 5;
 
 	return 0;
@@ -1156,6 +1104,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
 	enum transfer_type xfer;
+	enum scan_mode mode;
 	unsigned long flags;
 
 	if (!dev->irq) {
@@ -1221,6 +1170,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	} else
 		xfer = fifo_not_empty_transfer;
 	devpriv->current_transfer = xfer;
+	mode = labpc_ai_scan_mode(cmd);
 
 	/*  setup command6 register for 1200 boards */
 	if (thisboard->register_layout == labpc_1200_layout) {
@@ -1245,7 +1195,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		else
 			devpriv->command6_bits &= ~A1_INTR_EN_BIT;
 		/*  are we scanning up or down through channels? */
-		if (labpc_ai_scan_mode(cmd) == MODE_MULT_CHAN_UP)
+		if (mode == MODE_MULT_CHAN_UP)
 			devpriv->command6_bits |= ADC_SCAN_UP_BIT;
 		else
 			devpriv->command6_bits &= ~ADC_SCAN_UP_BIT;
@@ -1256,19 +1206,18 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	/* setup channel list, etc (command1 register) */
 	devpriv->command1_bits = 0;
-	if (labpc_ai_scan_mode(cmd) == MODE_MULT_CHAN_UP)
+	if (mode == MODE_MULT_CHAN_UP)
 		channel = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]);
 	else
 		channel = CR_CHAN(cmd->chanlist[0]);
 	/* munge channel bits for differential / scan disabled mode */
-	if (labpc_ai_scan_mode(cmd) != MODE_SINGLE_CHAN && aref == AREF_DIFF)
+	if (mode != MODE_SINGLE_CHAN && aref == AREF_DIFF)
 		channel *= 2;
 	devpriv->command1_bits |= ADC_CHAN_BITS(channel);
 	devpriv->command1_bits |= thisboard->ai_range_code[range];
 	devpriv->write_byte(devpriv->command1_bits, dev->iobase + COMMAND1_REG);
 	/* manual says to set scan enable bit on second pass */
-	if (labpc_ai_scan_mode(cmd) == MODE_MULT_CHAN_UP ||
-	    labpc_ai_scan_mode(cmd) == MODE_MULT_CHAN_DOWN) {
+	if (mode == MODE_MULT_CHAN_UP || mode == MODE_MULT_CHAN_DOWN) {
 		devpriv->command1_bits |= ADC_SCAN_EN_BIT;
 		/* need a brief delay before enabling scan, or scan
 		 * list will get screwed when you switch
@@ -1283,7 +1232,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->command4_bits |= EXT_CONVERT_DISABLE_BIT;
 	/* XXX should discard first scan when using interval scanning
 	 * since manual says it is not synced with scan clock */
-	if (labpc_use_continuous_mode(cmd) == 0) {
+	if (labpc_use_continuous_mode(cmd, mode) == 0) {
 		devpriv->command4_bits |= INTERVAL_SCAN_EN_BIT;
 		if (cmd->scan_begin_src == TRIG_EXT)
 			devpriv->command4_bits |= EXT_SCAN_EN_BIT;
@@ -1301,7 +1250,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	if (cmd->convert_src == TRIG_TIMER || cmd->scan_begin_src == TRIG_TIMER) {
 		/*  set up pacing */
-		labpc_adc_timing(dev, cmd);
+		labpc_adc_timing(dev, cmd, mode);
 		/*  load counter b0 in mode 3 */
 		ret = labpc_counter_load(dev, dev->iobase + COUNTER_B_BASE_REG,
 					 0, devpriv->divisor_b0, 3);
@@ -1311,7 +1260,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		}
 	}
 	/*  set up conversion pacing */
-	if (labpc_ai_convert_period(cmd)) {
+	if (labpc_ai_convert_period(cmd, mode)) {
 		/*  load counter a0 in mode 2 */
 		ret = labpc_counter_load(dev, dev->iobase + COUNTER_A_BASE_REG,
 					 0, devpriv->divisor_a0, 2);
@@ -1324,7 +1273,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 				    dev->iobase + COUNTER_A_CONTROL_REG);
 
 	/*  set up scan pacing */
-	if (labpc_ai_scan_period(cmd)) {
+	if (labpc_ai_scan_period(cmd, mode)) {
 		/*  load counter b1 in mode 2 */
 		ret = labpc_counter_load(dev, dev->iobase + COUNTER_B_BASE_REG,
 					 1, devpriv->divisor_b1, 2);
@@ -1347,7 +1296,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		set_dma_addr(devpriv->dma_chan,
 			     virt_to_bus(devpriv->dma_buffer));
 		/*  set appropriate size of transfer */
-		devpriv->dma_transfer_size = labpc_suggest_transfer_size(*cmd);
+		devpriv->dma_transfer_size = labpc_suggest_transfer_size(cmd);
 		if (cmd->stop_src == TRIG_COUNT &&
 		    devpriv->count * sample_size < devpriv->dma_transfer_size) {
 			devpriv->dma_transfer_size =
@@ -1786,8 +1735,8 @@ static int labpc_eeprom_write_insn(struct comedi_device *dev,
 
 	/*  only allow writes to user area of eeprom */
 	if (channel < 16 || channel > 127) {
-		printk
-		    ("eeprom writes are only allowed to channels 16 through 127 (the pointer and user areas)");
+		dev_dbg(dev->class_dev,
+			"eeprom writes are only allowed to channels 16 through 127 (the pointer and user areas)\n");
 		return -EINVAL;
 	}
 
@@ -1800,13 +1749,13 @@ static int labpc_eeprom_write_insn(struct comedi_device *dev,
 
 #ifdef CONFIG_ISA_DMA_API
 /* utility function that suggests a dma transfer size in bytes */
-static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd)
+static unsigned int labpc_suggest_transfer_size(const struct comedi_cmd *cmd)
 {
 	unsigned int size;
 	unsigned int freq;
 
-	if (cmd.convert_src == TRIG_TIMER)
-		freq = 1000000000 / cmd.convert_arg;
+	if (cmd->convert_src == TRIG_TIMER)
+		freq = 1000000000 / cmd->convert_arg;
 	/* return some default value */
 	else
 		freq = 0xffffffff;
@@ -1825,24 +1774,29 @@ static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd)
 #endif
 
 /* figures out what counter values to use based on command */
-static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
+static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
+			     enum scan_mode mode)
 {
 	/* max value for 16 bit counter in mode 2 */
 	const int max_counter_value = 0x10000;
 	/* min value for 16 bit counter in mode 2 */
 	const int min_counter_value = 2;
 	unsigned int base_period;
+	unsigned int scan_period;
+	unsigned int convert_period;
 
 	/*
 	 * if both convert and scan triggers are TRIG_TIMER, then they
 	 * both rely on counter b0
 	 */
-	if (labpc_ai_convert_period(cmd) && labpc_ai_scan_period(cmd)) {
+	convert_period = labpc_ai_convert_period(cmd, mode);
+	scan_period = labpc_ai_scan_period(cmd, mode);
+	if (convert_period && scan_period) {
 		/*
 		 * pick the lowest b0 divisor value we can (for maximum input
 		 * clock speed on convert and scan counters)
 		 */
-		devpriv->divisor_b0 = (labpc_ai_scan_period(cmd) - 1) /
+		devpriv->divisor_b0 = (scan_period - 1) /
 		    (LABPC_TIMER_BASE * max_counter_value) + 1;
 		if (devpriv->divisor_b0 < min_counter_value)
 			devpriv->divisor_b0 = min_counter_value;
@@ -1856,25 +1810,19 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
 		default:
 		case TRIG_ROUND_NEAREST:
 			devpriv->divisor_a0 =
-			    (labpc_ai_convert_period(cmd) +
-			     (base_period / 2)) / base_period;
+			    (convert_period + (base_period / 2)) / base_period;
 			devpriv->divisor_b1 =
-			    (labpc_ai_scan_period(cmd) +
-			     (base_period / 2)) / base_period;
+			    (scan_period + (base_period / 2)) / base_period;
 			break;
 		case TRIG_ROUND_UP:
 			devpriv->divisor_a0 =
-			    (labpc_ai_convert_period(cmd) + (base_period -
-							     1)) / base_period;
+			    (convert_period + (base_period - 1)) / base_period;
 			devpriv->divisor_b1 =
-			    (labpc_ai_scan_period(cmd) + (base_period -
-							  1)) / base_period;
+			    (scan_period + (base_period - 1)) / base_period;
 			break;
 		case TRIG_ROUND_DOWN:
-			devpriv->divisor_a0 =
-			    labpc_ai_convert_period(cmd) / base_period;
-			devpriv->divisor_b1 =
-			    labpc_ai_scan_period(cmd) / base_period;
+			devpriv->divisor_a0 = convert_period / base_period;
+			devpriv->divisor_b1 = scan_period / base_period;
 			break;
 		}
 		/*  make sure a0 and b1 values are acceptable */
@@ -1887,18 +1835,15 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
 		if (devpriv->divisor_b1 > max_counter_value)
 			devpriv->divisor_b1 = max_counter_value;
 		/*  write corrected timings to command */
-		labpc_set_ai_convert_period(cmd,
+		labpc_set_ai_convert_period(cmd, mode,
 					    base_period * devpriv->divisor_a0);
-		labpc_set_ai_scan_period(cmd,
+		labpc_set_ai_scan_period(cmd, mode,
 					 base_period * devpriv->divisor_b1);
 		/*
 		 * if only one TRIG_TIMER is used, we can employ the generic
 		 * cascaded timing functions
 		 */
-	} else if (labpc_ai_scan_period(cmd)) {
-		unsigned int scan_period;
-
-		scan_period = labpc_ai_scan_period(cmd);
+	} else if (scan_period) {
 		/*
 		 * calculate cascaded counter values
 		 * that give desired scan timing
@@ -1908,11 +1853,8 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
 					       &(devpriv->divisor_b0),
 					       &scan_period,
 					       cmd->flags & TRIG_ROUND_MASK);
-		labpc_set_ai_scan_period(cmd, scan_period);
-	} else if (labpc_ai_convert_period(cmd)) {
-		unsigned int convert_period;
-
-		convert_period = labpc_ai_convert_period(cmd);
+		labpc_set_ai_scan_period(cmd, mode, scan_period);
+	} else if (convert_period) {
 		/*
 		 * calculate cascaded counter values
 		 * that give desired conversion timing
@@ -1922,7 +1864,7 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
 					       &(devpriv->divisor_b0),
 					       &convert_period,
 					       cmd->flags & TRIG_ROUND_MASK);
-		labpc_set_ai_convert_period(cmd, convert_period);
+		labpc_set_ai_convert_period(cmd, mode, convert_period);
 	}
 }
 
@@ -1930,10 +1872,10 @@ static int labpc_dio_mem_callback(int dir, int port, int data,
 				  unsigned long iobase)
 {
 	if (dir) {
-		writeb(data, (void *)(iobase + port));
+		writeb(data, (void __iomem *)(iobase + port));
 		return 0;
 	} else {
-		return readb((void *)(iobase + port));
+		return readb((void __iomem *)(iobase + port));
 	}
 }
 
@@ -2136,57 +2078,44 @@ static void write_caldac(struct comedi_device *dev, unsigned int channel,
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 }
 
+static struct comedi_driver labpc_driver = {
+	.driver_name = DRV_NAME,
+	.module = THIS_MODULE,
+	.attach = labpc_attach,
+	.attach_pci = labpc_attach_pci,
+	.detach = labpc_common_detach,
+	.num_names = ARRAY_SIZE(labpc_boards),
+	.board_name = &labpc_boards[0].name,
+	.offset = sizeof(struct labpc_board_struct),
+};
+
 #ifdef CONFIG_COMEDI_PCI_DRIVERS
-static int __devinit driver_labpc_pci_probe(struct pci_dev *dev,
-					    const struct pci_device_id *ent)
+static DEFINE_PCI_DEVICE_TABLE(labpc_pci_table) = {
+	{PCI_DEVICE(PCI_VENDOR_ID_NI, 0x161)},
+	{0}
+};
+MODULE_DEVICE_TABLE(pci, labpc_pci_table);
+
+static int __devinit labpc_pci_probe(struct pci_dev *dev,
+				     const struct pci_device_id *ent)
 {
-	return comedi_pci_auto_config(dev, &driver_labpc);
+	return comedi_pci_auto_config(dev, &labpc_driver);
 }
 
-static void __devexit driver_labpc_pci_remove(struct pci_dev *dev)
+static void __devexit labpc_pci_remove(struct pci_dev *dev)
 {
 	comedi_pci_auto_unconfig(dev);
 }
 
-static struct pci_driver driver_labpc_pci_driver = {
+static struct pci_driver labpc_pci_driver = {
+	.name = DRV_NAME,
 	.id_table = labpc_pci_table,
-	.probe = &driver_labpc_pci_probe,
-	.remove = __devexit_p(&driver_labpc_pci_remove)
+	.probe = labpc_pci_probe,
+	.remove = __devexit_p(labpc_pci_remove)
 };
-
-static int __init driver_labpc_init_module(void)
-{
-	int retval;
-
-	retval = comedi_driver_register(&driver_labpc);
-	if (retval < 0)
-		return retval;
-
-	driver_labpc_pci_driver.name = (char *)driver_labpc.driver_name;
-	return pci_register_driver(&driver_labpc_pci_driver);
-}
-
-static void __exit driver_labpc_cleanup_module(void)
-{
-	pci_unregister_driver(&driver_labpc_pci_driver);
-	comedi_driver_unregister(&driver_labpc);
-}
-
-module_init(driver_labpc_init_module);
-module_exit(driver_labpc_cleanup_module);
+module_comedi_pci_driver(labpc_driver, labpc_pci_driver);
 #else
-static int __init driver_labpc_init_module(void)
-{
-	return comedi_driver_register(&driver_labpc);
-}
-
-static void __exit driver_labpc_cleanup_module(void)
-{
-	comedi_driver_unregister(&driver_labpc);
-}
-
-module_init(driver_labpc_init_module);
-module_exit(driver_labpc_cleanup_module);
+module_comedi_driver(labpc_driver);
 #endif
 
 
diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
index dbb61b6b3ed..eb0417eb6d7 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c
@@ -270,7 +270,7 @@ MODULE_AUTHOR("Frank Mori Hess <fmhess@users.sourceforge.net>");
 MODULE_DESCRIPTION("Comedi driver for National Instruments Lab-PC");
 MODULE_LICENSE("GPL");
 
-struct pcmcia_driver labpc_cs_driver = {
+static struct pcmcia_driver labpc_cs_driver = {
 	.probe = labpc_cs_attach,
 	.remove = labpc_cs_detach,
 	.suspend = labpc_cs_suspend,
@@ -291,7 +291,7 @@ static void __exit exit_labpc_cs(void)
 	pcmcia_unregister_driver(&labpc_cs_driver);
 }
 
-int __init labpc_init_module(void)
+static int __init labpc_init_module(void)
 {
 	int ret;
 
@@ -302,7 +302,7 @@ int __init labpc_init_module(void)
 	return comedi_driver_register(&driver_labpc_cs);
 }
 
-void __exit labpc_exit_module(void)
+static void __exit labpc_exit_module(void)
 {
 	exit_labpc_cs();
 	comedi_driver_unregister(&driver_labpc_cs);
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index cf0e0d147f8..3e5fdae9316 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -644,10 +644,10 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev)
 #endif /*  PCIDMA */
 }
 
-void ni_release_gpct_mite_channel(struct comedi_device *dev,
-				  unsigned gpct_index)
-{
 #ifdef PCIDMA
+static void ni_release_gpct_mite_channel(struct comedi_device *dev,
+					 unsigned gpct_index)
+{
 	unsigned long flags;
 
 	BUG_ON(gpct_index >= NUM_GPCT);
@@ -663,8 +663,8 @@ void ni_release_gpct_mite_channel(struct comedi_device *dev,
 		mite_release_channel(mite_chan);
 	}
 	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-#endif /*  PCIDMA */
 }
+#endif /*  PCIDMA */
 
 static void ni_release_cdo_mite_channel(struct comedi_device *dev)
 {
@@ -872,7 +872,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 #ifdef PCIDMA
 static void ni_sync_ai_dma(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 	unsigned long flags;
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
@@ -884,7 +884,7 @@ static void ni_sync_ai_dma(struct comedi_device *dev)
 static void mite_handle_b_linkc(struct mite_struct *mite,
 				struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AO_SUBDEV];
 	unsigned long flags;
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
@@ -942,7 +942,7 @@ static void ni_handle_eos(struct comedi_device *dev, struct comedi_subdevice *s)
 
 static void shutdown_ai_command(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 
 #ifdef PCIDMA
 	ni_ai_drain_dma(dev);
@@ -984,8 +984,9 @@ static void handle_gpct_interrupt(struct comedi_device *dev,
 				  unsigned short counter_index)
 {
 #ifdef PCIDMA
-	struct comedi_subdevice *s =
-	    dev->subdevices + NI_GPCT_SUBDEV(counter_index);
+	struct comedi_subdevice *s;
+
+	s = &dev->subdevices[NI_GPCT_SUBDEV(counter_index)];
 
 	ni_tio_handle_interrupt(&devpriv->counter_dev->counters[counter_index],
 				s);
@@ -1018,7 +1019,7 @@ static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status)
 static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 			       unsigned ai_mite_status)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 
 	/* 67xx boards don't have ai subdevice, but their gpct0 might generate an a interrupt */
 	if (s->type == COMEDI_SUBD_UNUSED)
@@ -1150,7 +1151,7 @@ static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status)
 static void handle_b_interrupt(struct comedi_device *dev,
 			       unsigned short b_status, unsigned ao_mite_status)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AO_SUBDEV];
 	/* unsigned short ack=0; */
 #ifdef DEBUG_INTERRUPT
 	printk("ni_mio_common: interrupt: b_status=%04x m1_status=%08x\n",
@@ -1422,7 +1423,7 @@ static void ni_ai_fifo_read(struct comedi_device *dev,
 static void ni_handle_fifo_half_full(struct comedi_device *dev)
 {
 	int n;
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 
 	n = boardtype.ai_fifo_depth / 2;
 
@@ -1470,7 +1471,7 @@ static int ni_ai_drain_dma(struct comedi_device *dev)
 */
 static void ni_handle_fifo_dregs(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 	short data[2];
 	u32 dl;
 	short fifo_empty;
@@ -1534,7 +1535,7 @@ static void ni_handle_fifo_dregs(struct comedi_device *dev)
 
 static void get_last_sample_611x(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 	short data;
 	u32 dl;
 
@@ -1551,7 +1552,7 @@ static void get_last_sample_611x(struct comedi_device *dev)
 
 static void get_last_sample_6143(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 	short data;
 	u32 dl;
 
@@ -1598,7 +1599,7 @@ static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 
 static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
 	int retval;
 	unsigned long flags;
 
@@ -1637,7 +1638,7 @@ static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 
 static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
 {
-	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_AO_SUBDEV];
 	int retval;
 	unsigned long flags;
 
@@ -1765,20 +1766,18 @@ static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s)
 
 static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 {
-	unsigned long flags = 0;
+	unsigned long flags;
 	int count;
 
 	/*  lock to avoid race with interrupt handler */
-	if (in_interrupt() == 0)
-		spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 #ifndef PCIDMA
 	ni_handle_fifo_dregs(dev);
 #else
 	ni_sync_ai_dma(dev);
 #endif
 	count = s->async->buf_write_count - s->async->buf_read_count;
-	if (in_interrupt() == 0)
-		spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return count;
 }
@@ -1880,7 +1879,7 @@ static int ni_ai_insn_read(struct comedi_device *dev,
 	return insn->n;
 }
 
-void ni_prime_channelgain_list(struct comedi_device *dev)
+static void ni_prime_channelgain_list(struct comedi_device *dev)
 {
 	int i;
 	devpriv->stc_writew(dev, AI_CONVERT_Pulse, AI_Command_1_Register);
@@ -2165,61 +2164,38 @@ static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 {
 	int err = 0;
 	int tmp;
-	int sources;
+	unsigned int sources;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	if ((cmd->flags & CMDF_WRITE)) {
+	if ((cmd->flags & CMDF_WRITE))
 		cmd->flags &= ~CMDF_WRITE;
-	}
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src,
+					TRIG_NOW | TRIG_INT | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
 
-	tmp = cmd->convert_src;
 	sources = TRIG_TIMER | TRIG_EXT;
-	if ((boardtype.reg_type == ni_reg_611x)
-	    || (boardtype.reg_type == ni_reg_6143))
+	if (boardtype.reg_type == ni_reg_611x ||
+	    boardtype.reg_type == ni_reg_6143)
 		sources |= TRIG_NOW;
-	cmd->convert_src &= sources;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->convert_src, sources);
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->start_src != TRIG_NOW &&
-	    cmd->start_src != TRIG_INT && cmd->start_src != TRIG_EXT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_OTHER)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -3357,44 +3333,28 @@ static int ni_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	if ((cmd->flags & CMDF_WRITE) == 0) {
+	if ((cmd->flags & CMDF_WRITE) == 0)
 		cmd->flags |= CMDF_WRITE;
-	}
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_INT | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -3644,51 +3604,21 @@ static int ni_cdio_cmdtest(struct comedi_device *dev,
 {
 	int err = 0;
 	int tmp;
-	int sources;
 	unsigned i;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	sources = TRIG_INT;
-	cmd->start_src &= sources;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique... */
-
-	if (cmd->start_src != TRIG_INT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_NONE)
-		err++;
-	/* ... and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -3852,7 +3782,7 @@ static int ni_cdio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 static void handle_cdio_interrupt(struct comedi_device *dev)
 {
 	unsigned cdio_status;
-	struct comedi_subdevice *s = dev->subdevices + NI_DIO_SUBDEV;
+	struct comedi_subdevice *s = &dev->subdevices[NI_DIO_SUBDEV];
 #ifdef PCIDMA
 	unsigned long flags;
 #endif
@@ -4101,13 +4031,17 @@ static int ni_serial_sw_readwrite8(struct comedi_device *dev,
 
 static void mio_common_detach(struct comedi_device *dev)
 {
+	struct comedi_subdevice *s;
+
 	if (dev->private) {
 		if (devpriv->counter_dev) {
 			ni_gpct_device_destroy(devpriv->counter_dev);
 		}
 	}
-	if (dev->subdevices && boardtype.has_8255)
-		subdev_8255_cleanup(dev, dev->subdevices + NI_8255_DIO_SUBDEV);
+	if (dev->subdevices && boardtype.has_8255) {
+		s = &dev->subdevices[NI_8255_DIO_SUBDEV];
+		subdev_8255_cleanup(dev, s);
+	}
 }
 
 static void init_ao_67xx(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -4399,7 +4333,7 @@ static int ni_alloc_private(struct comedi_device *dev)
 	return 0;
 };
 
-static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
+static int ni_E_init(struct comedi_device *dev)
 {
 	struct comedi_subdevice *s;
 	unsigned j;
@@ -4417,7 +4351,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* analog input subdevice */
 
-	s = dev->subdevices + NI_AI_SUBDEV;
+	s = &dev->subdevices[NI_AI_SUBDEV];
 	dev->read_subdev = s;
 	if (boardtype.n_adchan) {
 		s->type = COMEDI_SUBD_AI;
@@ -4449,7 +4383,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* analog output subdevice */
 
-	s = dev->subdevices + NI_AO_SUBDEV;
+	s = &dev->subdevices[NI_AO_SUBDEV];
 	if (boardtype.n_aochan) {
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags = SDF_WRITABLE | SDF_DEGLITCH | SDF_GROUND;
@@ -4488,7 +4422,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* digital i/o subdevice */
 
-	s = dev->subdevices + NI_DIO_SUBDEV;
+	s = &dev->subdevices[NI_DIO_SUBDEV];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 	s->maxdata = 1;
@@ -4516,7 +4450,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* 8255 device */
-	s = dev->subdevices + NI_8255_DIO_SUBDEV;
+	s = &dev->subdevices[NI_8255_DIO_SUBDEV];
 	if (boardtype.has_8255) {
 		subdev_8255_init(dev, s, ni_8255_callback, (unsigned long)dev);
 	} else {
@@ -4524,11 +4458,11 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* formerly general purpose counter/timer device, but no longer used */
-	s = dev->subdevices + NI_UNUSED_SUBDEV;
+	s = &dev->subdevices[NI_UNUSED_SUBDEV];
 	s->type = COMEDI_SUBD_UNUSED;
 
 	/* calibration subdevice -- ai and ao */
-	s = dev->subdevices + NI_CALIBRATION_SUBDEV;
+	s = &dev->subdevices[NI_CALIBRATION_SUBDEV];
 	s->type = COMEDI_SUBD_CALIB;
 	if (boardtype.reg_type & ni_reg_m_series_mask) {
 		/*  internal PWM analog output used for AI nonlinearity calibration */
@@ -4551,7 +4485,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* EEPROM */
-	s = dev->subdevices + NI_EEPROM_SUBDEV;
+	s = &dev->subdevices[NI_EEPROM_SUBDEV];
 	s->type = COMEDI_SUBD_MEMORY;
 	s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
 	s->maxdata = 0xff;
@@ -4564,7 +4498,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* PFI */
-	s = dev->subdevices + NI_PFI_DIO_SUBDEV;
+	s = &dev->subdevices[NI_PFI_DIO_SUBDEV];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
 	if (boardtype.reg_type & ni_reg_m_series_mask) {
@@ -4586,7 +4520,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	ni_set_bits(dev, IO_Bidirection_Pin_Register, ~0, 0);
 
 	/* cs5529 calibration adc */
-	s = dev->subdevices + NI_CS5529_CALIBRATION_SUBDEV;
+	s = &dev->subdevices[NI_CS5529_CALIBRATION_SUBDEV];
 	if (boardtype.reg_type & ni_reg_67xx_mask) {
 		s->type = COMEDI_SUBD_AI;
 		s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_INTERNAL;
@@ -4602,7 +4536,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* Serial */
-	s = dev->subdevices + NI_SERIAL_SUBDEV;
+	s = &dev->subdevices[NI_SERIAL_SUBDEV];
 	s->type = COMEDI_SUBD_SERIAL;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
 	s->n_chan = 1;
@@ -4612,7 +4546,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	devpriv->serial_hw_mode = 0;
 
 	/* RTSI */
-	s = dev->subdevices + NI_RTSI_SUBDEV;
+	s = &dev->subdevices[NI_RTSI_SUBDEV];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
 	s->n_chan = 8;
@@ -4633,7 +4567,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 							NUM_GPCT);
 	/* General purpose counters */
 	for (j = 0; j < NUM_GPCT; ++j) {
-		s = dev->subdevices + NI_GPCT_SUBDEV(j);
+		s = &dev->subdevices[NI_GPCT_SUBDEV(j)];
 		s->type = COMEDI_SUBD_COUNTER;
 		s->subdev_flags =
 		    SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_CMD_READ
@@ -4659,7 +4593,7 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 
 	/* Frequency output */
-	s = dev->subdevices + NI_FREQ_OUT_SUBDEV;
+	s = &dev->subdevices[NI_FREQ_OUT_SUBDEV];
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 1;
@@ -4669,7 +4603,8 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_config = &ni_freq_out_insn_config;
 
 	/* ai configuration */
-	ni_ai_reset(dev, dev->subdevices + NI_AI_SUBDEV);
+	s = &dev->subdevices[NI_AI_SUBDEV];
+	ni_ai_reset(dev, s);
 	if ((boardtype.reg_type & ni_reg_6xxx_mask) == 0) {
 		/*  BEAM is this needed for PCI-6143 ?? */
 		devpriv->clock_and_fout =
@@ -4688,7 +4623,8 @@ static int ni_E_init(struct comedi_device *dev, struct comedi_devconfig *it)
 			    Clock_and_FOUT_Register);
 
 	/* analog output configuration */
-	ni_ao_reset(dev, dev->subdevices + NI_AO_SUBDEV);
+	s = &dev->subdevices[NI_AO_SUBDEV];
+	ni_ao_reset(dev, s);
 
 	if (dev->irq) {
 		devpriv->stc_writew(dev,
diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c
index b85765d266c..ca4f8e06e75 100644
--- a/drivers/staging/comedi/drivers/ni_mio_cs.c
+++ b/drivers/staging/comedi/drivers/ni_mio_cs.c
@@ -382,7 +382,7 @@ static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	devpriv->stc_writel = &win_out2;
 	devpriv->stc_readl = &win_in2;
 
-	ret = ni_E_init(dev, it);
+	ret = ni_E_init(dev);
 
 	if (ret < 0)
 		return ret;
@@ -421,7 +421,7 @@ MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
 MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
 MODULE_LICENSE("GPL");
 
-struct pcmcia_driver ni_mio_cs_driver = {
+static struct pcmcia_driver ni_mio_cs_driver = {
 	.probe = &cs_attach,
 	.remove = &cs_detach,
 	.suspend = &mio_cs_suspend,
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index 0a55de96803..bc9313ec985 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -1,8 +1,6 @@
 /*
     comedi/drivers/ni_pcidio.c
-    driver for National Instruments PCI-DIO-96/PCI-6508
-		National Instruments PCI-DIO-32HS
-		National Instruments PCI-6503
+    driver for National Instruments PCI-DIO-32HS
 
     COMEDI - Linux Control and Measurement Device Interface
     Copyright (C) 1999,2002 David A. Schleef <ds@schleef.org>
@@ -24,17 +22,14 @@
 */
 /*
 Driver: ni_pcidio
-Description: National Instruments PCI-DIO32HS, PCI-DIO96, PCI-6533, PCI-6503
+Description: National Instruments PCI-DIO32HS, PCI-6533
 Author: ds
 Status: works
-Devices: [National Instruments] PCI-DIO-32HS (ni_pcidio), PXI-6533,
-  PCI-DIO-96, PCI-DIO-96B, PXI-6508, PCI-6503, PCI-6503B, PCI-6503X,
-  PXI-6503, PCI-6533, PCI-6534
+Devices: [National Instruments] PCI-DIO-32HS (ni_pcidio)
+	 [National Instruments] PXI-6533, PCI-6533 (pxi-6533)
+	 [National Instruments] PCI-6534 (pci-6534)
 Updated: Mon, 09 Jan 2012 14:27:23 +0000
 
-The DIO-96 appears as four 8255 subdevices.  See the 8255
-driver notes for details.
-
 The DIO32HS board appears as one subdevice, with 32 channels.
 Each channel is individually I/O configurable.  The channel order
 is 0=A0, 1=A1, 2=A2, ... 8=B0, 16=C0, 24=D0.  The driver only
@@ -56,49 +51,28 @@ it are contained in the
 comedi_nonfree_firmware tarball available from http://www.comedi.org
 */
 
-/*
-   This driver is for both the NI PCI-DIO-32HS and the PCI-DIO-96,
-   which have very different architectures.  But, since the '96 is
-   so simple, it is included here.
-
-   Manuals (available from ftp://ftp.natinst.com/support/manuals)
-
-	320938c.pdf	PCI-DIO-96/PXI-6508/PCI-6503 User Manual
-	321464b.pdf	AT/PCI-DIO-32HS User Manual
-	341329A.pdf	PCI-6533 Register-Level Programmer Manual
-	341330A.pdf	DAQ-DIO Technical Reference Manual
-
- */
-
 #define USE_DMA
 /* #define DEBUG 1 */
 /* #define DEBUG_FLAGS */
 
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/firmware.h>
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
 #include "mite.h"
-#include "8255.h"
 
 #undef DPRINTK
 #ifdef DEBUG
-#define DPRINTK(format, args...)	printk(format, ## args)
+#define DPRINTK(format, args...) pr_debug(format, ## args)
 #else
-#define DPRINTK(format, args...)
+#define DPRINTK(format, args...) do { } while (0)
 #endif
 
 #define PCI_DIO_SIZE 4096
 #define PCI_MITE_SIZE 4096
 
-/* defines for the PCI-DIO-96 */
-
-#define NIDIO_8255_BASE(x)	((x)*4)
-#define NIDIO_A 0
-#define NIDIO_B 4
-#define NIDIO_C 8
-#define NIDIO_D 12
-
 /* defines for the PCI-DIO-32HS */
 
 #define Window_Address			4	/* W */
@@ -258,6 +232,14 @@ static inline unsigned secondary_DMAChannel_bits(unsigned channel)
 #define Protocol_Register_8		88	/* 32 bit */
 #define StartDelay			Protocol_Register_8
 
+/* Firmware files for PCI-6524 */
+#define FW_PCI_6534_MAIN		"ni6534a.bin"
+#define FW_PCI_6534_SCARAB_DI		"niscrb01.bin"
+#define FW_PCI_6534_SCARAB_DO		"niscrb02.bin"
+MODULE_FIRMWARE(FW_PCI_6534_MAIN);
+MODULE_FIRMWARE(FW_PCI_6534_SCARAB_DI);
+MODULE_FIRMWARE(FW_PCI_6534_SCARAB_DO);
+
 enum pci_6534_firmware_registers {	/* 16 bit */
 	Firmware_Control_Register = 0x100,
 	Firmware_Status_Register = 0x104,
@@ -297,76 +279,23 @@ static int ni_pcidio_cancel(struct comedi_device *dev,
 			    struct comedi_subdevice *s);
 
 struct nidio_board {
-
 	int dev_id;
 	const char *name;
-	int n_8255;
-	unsigned int is_diodaq:1;
 	unsigned int uses_firmware:1;
 };
 
 static const struct nidio_board nidio_boards[] = {
 	{
-	 .dev_id = 0x1150,
-	 .name = "pci-dio-32hs",
-	 .n_8255 = 0,
-	 .is_diodaq = 1,
-	 },
-	{
-	 .dev_id = 0x1320,
-	 .name = "pxi-6533",
-	 .n_8255 = 0,
-	 .is_diodaq = 1,
-	 },
-	{
-	 .dev_id = 0x12b0,
-	 .name = "pci-6534",
-	 .n_8255 = 0,
-	 .is_diodaq = 1,
-	 .uses_firmware = 1,
-	 },
-	{
-	 .dev_id = 0x0160,
-	 .name = "pci-dio-96",
-	 .n_8255 = 4,
-	 .is_diodaq = 0,
-	 },
-	{
-	 .dev_id = 0x1630,
-	 .name = "pci-dio-96b",
-	 .n_8255 = 4,
-	 .is_diodaq = 0,
-	 },
-	{
-	 .dev_id = 0x13c0,
-	 .name = "pxi-6508",
-	 .n_8255 = 4,
-	 .is_diodaq = 0,
-	 },
-	{
-	 .dev_id = 0x0400,
-	 .name = "pci-6503",
-	 .n_8255 = 1,
-	 .is_diodaq = 0,
-	 },
-	{
-	 .dev_id = 0x1250,
-	 .name = "pci-6503b",
-	 .n_8255 = 1,
-	 .is_diodaq = 0,
-	 },
-	{
-	 .dev_id = 0x17d0,
-	 .name = "pci-6503x",
-	 .n_8255 = 1,
-	 .is_diodaq = 0,
-	 },
-	{
-	 .dev_id = 0x1800,
-	 .name = "pxi-6503",
-	 .n_8255 = 1,
-	 .is_diodaq = 0,
-	 },
+		.dev_id		= 0x1150,
+		.name		= "pci-dio-32hs",
+	}, {
+		.dev_id		= 0x1320,
+		.name		= "pxi-6533",
+	}, {
+		.dev_id		= 0x12b0,
+		.name		= "pci-6534",
+		.uses_firmware	= 1,
+	},
 };
 
 #define n_nidio_boards ARRAY_SIZE(nidio_boards)
@@ -442,17 +371,8 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
 	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
-static int nidio96_8255_cb(int dir, int port, int data, unsigned long iobase)
-{
-	if (dir) {
-		writeb(data, (void *)(iobase + port));
-		return 0;
-	} else {
-		return readb((void *)(iobase + port));
-	}
-}
-
-void ni_pcidio_event(struct comedi_device *dev, struct comedi_subdevice *s)
+static void ni_pcidio_event(struct comedi_device *dev,
+			    struct comedi_subdevice *s)
 {
 	if (s->
 	    async->events & (COMEDI_CB_EOA | COMEDI_CB_ERROR |
@@ -480,7 +400,7 @@ static int ni_pcidio_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 static irqreturn_t nidio_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	struct comedi_async *async = s->async;
 	struct mite_struct *mite = devpriv->mite;
 
@@ -511,18 +431,12 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 	ni_pcidio_print_flags(flags);
 	ni_pcidio_print_status(status);
 
-	/* printk("buf[0]=%08x\n",*(unsigned int *)async->prealloc_buf); */
-	/* printk("buf[4096]=%08x\n",
-	       *(unsigned int *)(async->prealloc_buf+4096)); */
-
 	spin_lock(&devpriv->mite_channel_lock);
 	if (devpriv->di_mite_chan)
 		m_status = mite_get_status(devpriv->di_mite_chan);
 #ifdef MITE_DEBUG
 	mite_print_chsr(m_status);
 #endif
-	/* printk("mite_bytes_transferred: %d\n",
-	       mite_bytes_transferred(mite,DI_DMA_CHAN)); */
 
 	/* mite_dump_regs(mite); */
 	if (m_status & CHSR_INT) {
@@ -617,7 +531,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 		}
 #if 0
 		else {
-			printk("ni_pcidio: unknown interrupt\n");
+			DPRINTK("ni_pcidio: unknown interrupt\n");
 			async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
 			writeb(0x00,
 			       devpriv->mite->daq_io_addr +
@@ -648,38 +562,47 @@ out:
 }
 
 #ifdef DEBUG_FLAGS
+static const char *bit_set_string(unsigned int bits, unsigned int bit,
+				  const char *const strings[])
+{
+	return (bits & (1U << bit)) ? strings[bit] : "";
+}
+
 static const char *const flags_strings[] = {
-	"TransferReady", "CountExpired", "2", "3",
-	"4", "Waited", "PrimaryTC", "SecondaryTC",
+	" TransferReady", " CountExpired", " 2", " 3",
+	" 4", " Waited", " PrimaryTC", " SecondaryTC",
 };
 
+
 static void ni_pcidio_print_flags(unsigned int flags)
 {
-	int i;
-
-	printk(KERN_INFO "group_1_flags:");
-	for (i = 7; i >= 0; i--) {
-		if (flags & (1 << i))
-			printk(" %s", flags_strings[i]);
-	}
-	printk("\n");
+	pr_debug("group_1_flags:%s%s%s%s%s%s%s%s\n",
+		 bit_set_string(flags, 7, flags_strings),
+		 bit_set_string(flags, 6, flags_strings),
+		 bit_set_string(flags, 5, flags_strings),
+		 bit_set_string(flags, 4, flags_strings),
+		 bit_set_string(flags, 3, flags_strings),
+		 bit_set_string(flags, 2, flags_strings),
+		 bit_set_string(flags, 1, flags_strings),
+		 bit_set_string(flags, 0, flags_strings));
 }
 
-static char *status_strings[] = {
-	"DataLeft1", "Reserved1", "Req1", "StopTrig1",
-	"DataLeft2", "Reserved2", "Req2", "StopTrig2",
+static const char *const status_strings[] = {
+	" DataLeft1", " Reserved1", " Req1", " StopTrig1",
+	" DataLeft2", " Reserved2", " Req2", " StopTrig2",
 };
 
 static void ni_pcidio_print_status(unsigned int flags)
 {
-	int i;
-
-	printk(KERN_INFO "group_status:");
-	for (i = 7; i >= 0; i--) {
-		if (flags & (1 << i))
-			printk(" %s", status_strings[i]);
-	}
-	printk("\n");
+	pr_debug("group_status:%s%s%s%s%s%s%s%s\n",
+		 bit_set_string(flags, 7, status_strings),
+		 bit_set_string(flags, 6, status_strings),
+		 bit_set_string(flags, 5, status_strings),
+		 bit_set_string(flags, 4, status_strings),
+		 bit_set_string(flags, 3, status_strings),
+		 bit_set_string(flags, 2, status_strings),
+		 bit_set_string(flags, 1, status_strings),
+		 bit_set_string(flags, 0, status_strings));
 }
 #endif
 
@@ -761,45 +684,25 @@ static int ni_pcidio_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually
-	compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_INT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1065,10 +968,12 @@ static int ni_pcidio_change(struct comedi_device *dev,
 }
 
 static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index,
-			      u8 *data, int data_len)
+			      const u8 *data, size_t data_len)
 {
 	static const int timeout = 1000;
-	int i, j;
+	int i;
+	size_t j;
+
 	writew(0x80 | fpga_index,
 	       devpriv->mite->daq_io_addr + Firmware_Control_Register);
 	writew(0xc0 | fpga_index,
@@ -1079,8 +984,9 @@ static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index,
 		udelay(1);
 	}
 	if (i == timeout) {
-		printk(KERN_WARNING "ni_pcidio: failed to load fpga %i, "
-		       "waiting for status 0x2\n", fpga_index);
+		dev_warn(dev->class_dev,
+			 "ni_pcidio: failed to load fpga %i, waiting for status 0x2\n",
+			 fpga_index);
 		return -EIO;
 	}
 	writew(0x80 | fpga_index,
@@ -1091,8 +997,9 @@ static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index,
 		udelay(1);
 	}
 	if (i == timeout) {
-		printk(KERN_WARNING "ni_pcidio: failed to load fpga %i, "
-		       "waiting for status 0x3\n", fpga_index);
+		dev_warn(dev->class_dev,
+			 "ni_pcidio: failed to load fpga %i, waiting for status 0x3\n",
+			 fpga_index);
 		return -EIO;
 	}
 	for (j = 0; j + 1 < data_len;) {
@@ -1107,8 +1014,9 @@ static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index,
 			udelay(1);
 		}
 		if (i == timeout) {
-			printk("ni_pcidio: failed to load word into fpga %i\n",
-			       fpga_index);
+			dev_warn(dev->class_dev,
+				 "ni_pcidio: failed to load word into fpga %i\n",
+				 fpga_index);
 			return -EIO;
 		}
 		if (need_resched())
@@ -1147,85 +1055,72 @@ static void pci_6534_init_main_fpga(struct comedi_device *dev)
 	writel(0, devpriv->mite->daq_io_addr + FPGA_SCBMS_Counter_Register);
 }
 
-static int pci_6534_upload_firmware(struct comedi_device *dev, int options[])
+static int pci_6534_upload_firmware(struct comedi_device *dev)
 {
 	int ret;
-	void *main_fpga_data, *scarab_a_data, *scarab_b_data;
-	int main_fpga_data_len, scarab_a_data_len, scarab_b_data_len;
+	const struct firmware *fw;
+	static const char *const fw_file[3] = {
+		FW_PCI_6534_SCARAB_DI,	/* loaded into scarab A for DI */
+		FW_PCI_6534_SCARAB_DO,	/* loaded into scarab B for DO */
+		FW_PCI_6534_MAIN,	/* loaded into main FPGA */
+	};
+	int n;
 
-	if (options[COMEDI_DEVCONF_AUX_DATA_LENGTH] == 0)
-		return 0;
 	ret = pci_6534_reset_fpgas(dev);
 	if (ret < 0)
 		return ret;
-	main_fpga_data = comedi_aux_data(options, 0);
-	main_fpga_data_len = options[COMEDI_DEVCONF_AUX_DATA0_LENGTH];
-	ret = pci_6534_load_fpga(dev, 2, main_fpga_data, main_fpga_data_len);
-	if (ret < 0)
-		return ret;
-	pci_6534_init_main_fpga(dev);
-	scarab_a_data = comedi_aux_data(options, 1);
-	scarab_a_data_len = options[COMEDI_DEVCONF_AUX_DATA1_LENGTH];
-	ret = pci_6534_load_fpga(dev, 0, scarab_a_data, scarab_a_data_len);
-	if (ret < 0)
-		return ret;
-	scarab_b_data = comedi_aux_data(options, 2);
-	scarab_b_data_len = options[COMEDI_DEVCONF_AUX_DATA2_LENGTH];
-	ret = pci_6534_load_fpga(dev, 1, scarab_b_data, scarab_b_data_len);
-	if (ret < 0)
-		return ret;
-	return 0;
+	/* load main FPGA first, then the two scarabs */
+	for (n = 2; n >= 0; n--) {
+		ret = request_firmware(&fw, fw_file[n],
+				       &devpriv->mite->pcidev->dev);
+		if (ret == 0) {
+			ret = pci_6534_load_fpga(dev, n, fw->data, fw->size);
+			if (ret == 0 && n == 2)
+				pci_6534_init_main_fpga(dev);
+			release_firmware(fw);
+		}
+		if (ret < 0)
+			break;
+	}
+	return ret;
 }
 
-static int nidio_find_device(struct comedi_device *dev, int bus, int slot)
+static const struct nidio_board *
+nidio_find_boardinfo(struct pci_dev *pcidev)
 {
-	struct mite_struct *mite;
-	int i;
-
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number ||
-			    slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-		for (i = 0; i < n_nidio_boards; i++) {
-			if (mite_device_id(mite) == nidio_boards[i].dev_id) {
-				dev->board_ptr = nidio_boards + i;
-				devpriv->mite = mite;
+	unsigned int dev_id = pcidev->device;
+	unsigned int n;
 
-				return 0;
-			}
-		}
+	for (n = 0; n < ARRAY_SIZE(nidio_boards); n++) {
+		const struct nidio_board *board = &nidio_boards[n];
+		if (board->dev_id == dev_id)
+			return board;
 	}
-	printk(KERN_WARNING "no device found\n");
-	mite_list_devices();
-	return -EIO;
+	return NULL;
 }
 
-static int nidio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int __devinit nidio_attach_pci(struct comedi_device *dev,
+				      struct pci_dev *pcidev)
 {
 	struct comedi_subdevice *s;
-	int i;
 	int ret;
-	int n_subdevices;
 	unsigned int irq;
 
-	printk(KERN_INFO "comedi%d: nidio:", dev->minor);
-
 	ret = alloc_private(dev, sizeof(struct nidio96_private));
 	if (ret < 0)
 		return ret;
 	spin_lock_init(&devpriv->mite_channel_lock);
 
-	ret = nidio_find_device(dev, it->options[0], it->options[1]);
-	if (ret < 0)
-		return ret;
+	dev->board_ptr = nidio_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+	devpriv->mite = mite_alloc(pcidev);
+	if (!devpriv->mite)
+		return -ENOMEM;
 
 	ret = mite_setup(devpriv->mite);
 	if (ret < 0) {
-		printk(KERN_WARNING "error setting up mite\n");
+		dev_warn(dev->class_dev, "error setting up mite\n");
 		return ret;
 	}
 	comedi_set_hw_dev(dev, &devpriv->mite->pcidev->dev);
@@ -1235,84 +1130,60 @@ static int nidio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = this_board->name;
 	irq = mite_irq(devpriv->mite);
-	printk(KERN_INFO " %s", dev->board_name);
 	if (this_board->uses_firmware) {
-		ret = pci_6534_upload_firmware(dev, it->options);
+		ret = pci_6534_upload_firmware(dev);
 		if (ret < 0)
 			return ret;
 	}
-	if (!this_board->is_diodaq)
-		n_subdevices = this_board->n_8255;
-	else
-		n_subdevices = 1;
 
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
+	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
 		return ret;
 
-	if (!this_board->is_diodaq) {
-		for (i = 0; i < this_board->n_8255; i++) {
-			subdev_8255_init(dev, dev->subdevices + i,
-					 nidio96_8255_cb,
-					 (unsigned long)(devpriv->mite->
-							 daq_io_addr +
-							 NIDIO_8255_BASE(i)));
-		}
-	} else {
-
-		printk(KERN_INFO " rev=%d",
-		       readb(devpriv->mite->daq_io_addr + Chip_Version));
-
-		s = dev->subdevices + 0;
-
-		dev->read_subdev = s;
-		s->type = COMEDI_SUBD_DIO;
-		s->subdev_flags =
-		    SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_PACKED |
-		    SDF_CMD_READ;
-		s->n_chan = 32;
-		s->range_table = &range_digital;
-		s->maxdata = 1;
-		s->insn_config = &ni_pcidio_insn_config;
-		s->insn_bits = &ni_pcidio_insn_bits;
-		s->do_cmd = &ni_pcidio_cmd;
-		s->do_cmdtest = &ni_pcidio_cmdtest;
-		s->cancel = &ni_pcidio_cancel;
-		s->len_chanlist = 32;	/* XXX */
-		s->buf_change = &ni_pcidio_change;
-		s->async_dma_dir = DMA_BIDIRECTIONAL;
-		s->poll = &ni_pcidio_poll;
-
-		writel(0, devpriv->mite->daq_io_addr + Port_IO(0));
-		writel(0, devpriv->mite->daq_io_addr + Port_Pin_Directions(0));
-		writel(0, devpriv->mite->daq_io_addr + Port_Pin_Mask(0));
-
-		/* disable interrupts on board */
-		writeb(0x00,
-		       devpriv->mite->daq_io_addr +
-		       Master_DMA_And_Interrupt_Control);
-
-		ret = request_irq(irq, nidio_interrupt, IRQF_SHARED,
-				  "ni_pcidio", dev);
-		if (ret < 0)
-			printk(KERN_WARNING " irq not available");
+	dev_info(dev->class_dev, "%s rev=%d\n", dev->board_name,
+		 readb(devpriv->mite->daq_io_addr + Chip_Version));
+
+	s = &dev->subdevices[0];
+
+	dev->read_subdev = s;
+	s->type = COMEDI_SUBD_DIO;
+	s->subdev_flags =
+		SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_PACKED |
+		SDF_CMD_READ;
+	s->n_chan = 32;
+	s->range_table = &range_digital;
+	s->maxdata = 1;
+	s->insn_config = &ni_pcidio_insn_config;
+	s->insn_bits = &ni_pcidio_insn_bits;
+	s->do_cmd = &ni_pcidio_cmd;
+	s->do_cmdtest = &ni_pcidio_cmdtest;
+	s->cancel = &ni_pcidio_cancel;
+	s->len_chanlist = 32;	/* XXX */
+	s->buf_change = &ni_pcidio_change;
+	s->async_dma_dir = DMA_BIDIRECTIONAL;
+	s->poll = &ni_pcidio_poll;
+
+	writel(0, devpriv->mite->daq_io_addr + Port_IO(0));
+	writel(0, devpriv->mite->daq_io_addr + Port_Pin_Directions(0));
+	writel(0, devpriv->mite->daq_io_addr + Port_Pin_Mask(0));
+
+	/* disable interrupts on board */
+	writeb(0x00,
+		devpriv->mite->daq_io_addr +
+		Master_DMA_And_Interrupt_Control);
 
-		dev->irq = irq;
-	}
+	ret = request_irq(irq, nidio_interrupt, IRQF_SHARED,
+				"ni_pcidio", dev);
+	if (ret < 0)
+		dev_warn(dev->class_dev, "irq not available\n");
 
-	printk("\n");
+	dev->irq = irq;
 
 	return 0;
 }
 
 static void nidio_detach(struct comedi_device *dev)
 {
-	int i;
-
-	if (this_board && !this_board->is_diodaq) {
-		for (i = 0; i < this_board->n_8255; i++)
-			subdev_8255_cleanup(dev, dev->subdevices + i);
-	}
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (devpriv) {
@@ -1320,15 +1191,17 @@ static void nidio_detach(struct comedi_device *dev)
 			mite_free_ring(devpriv->di_mite_ring);
 			devpriv->di_mite_ring = NULL;
 		}
-		if (devpriv->mite)
+		if (devpriv->mite) {
 			mite_unsetup(devpriv->mite);
+			mite_free(devpriv->mite);
+		}
 	}
 }
 
 static struct comedi_driver ni_pcidio_driver = {
 	.driver_name	= "ni_pcidio",
 	.module		= THIS_MODULE,
-	.attach		= nidio_attach,
+	.attach_pci	= nidio_attach_pci,
 	.detach		= nidio_detach,
 };
 
@@ -1347,13 +1220,6 @@ static DEFINE_PCI_DEVICE_TABLE(ni_pcidio_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1150) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1320) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x12b0) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x0160) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1630) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x13c0) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x0400) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1250) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x17d0) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_NI, 0x1800) },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, ni_pcidio_pci_table);
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
index 89f4d43c6d0..f284a90720e 100644
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ b/drivers/staging/comedi/drivers/ni_pcimio.c
@@ -1188,8 +1188,6 @@ static const struct ni_board_struct ni_boards[] = {
 	 },
 };
 
-#define n_pcimio_boards ARRAY_SIZE(ni_boards)
-
 struct ni_private {
 NI_PRIVATE_COMMON};
 #define devpriv ((struct ni_private *)dev->private)
@@ -1502,7 +1500,6 @@ static uint32_t m_series_stc_readl(struct comedi_device *dev, int reg)
 
 #include "ni_mio_common.c"
 
-static int pcimio_find_device(struct comedi_device *dev, int bus, int slot);
 static int pcimio_ai_change(struct comedi_device *dev,
 			    struct comedi_subdevice *s, unsigned long new_size);
 static int pcimio_ao_change(struct comedi_device *dev,
@@ -1584,24 +1581,45 @@ static void pcimio_detach(struct comedi_device *dev)
 		mite_free_ring(devpriv->cdo_mite_ring);
 		mite_free_ring(devpriv->gpct_mite_ring[0]);
 		mite_free_ring(devpriv->gpct_mite_ring[1]);
-		if (devpriv->mite)
+		if (devpriv->mite) {
 			mite_unsetup(devpriv->mite);
+			mite_free(devpriv->mite);
+		}
 	}
 }
 
-static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static const struct ni_board_struct *
+pcimio_find_boardinfo(struct pci_dev *pcidev)
+{
+	unsigned int device_id = pcidev->device;
+	unsigned int n;
+
+	for (n = 0; n < ARRAY_SIZE(ni_boards); n++) {
+		const struct ni_board_struct *board = &ni_boards[n];
+		if (board->device_id == device_id)
+			return board;
+	}
+	return NULL;
+}
+
+static int __devinit pcimio_attach_pci(struct comedi_device *dev,
+				       struct pci_dev *pcidev)
 {
 	int ret;
 
-	dev_info(dev->class_dev, "ni_pcimio: attach\n");
+	dev_info(dev->class_dev, "ni_pcimio: attach %s\n", pci_name(pcidev));
 
 	ret = ni_alloc_private(dev);
 	if (ret < 0)
 		return ret;
 
-	ret = pcimio_find_device(dev, it->options[0], it->options[1]);
-	if (ret < 0)
-		return ret;
+	dev->board_ptr = pcimio_find_boardinfo(pcidev);
+	if (!dev->board_ptr)
+		return -ENODEV;
+
+	devpriv->mite = mite_alloc(pcidev);
+	if (!devpriv->mite)
+		return -ENOMEM;
 
 	dev_dbg(dev->class_dev, "%s\n", boardtype.name);
 	dev->board_name = boardtype.name;
@@ -1659,7 +1677,7 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 	}
 
-	ret = ni_E_init(dev, it);
+	ret = ni_E_init(dev);
 	if (ret < 0)
 		return ret;
 
@@ -1672,34 +1690,6 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	return ret;
 }
 
-static int pcimio_find_device(struct comedi_device *dev, int bus, int slot)
-{
-	struct mite_struct *mite;
-	int i;
-
-	for (mite = mite_devices; mite; mite = mite->next) {
-		if (mite->used)
-			continue;
-		if (bus || slot) {
-			if (bus != mite->pcidev->bus->number ||
-			    slot != PCI_SLOT(mite->pcidev->devfn))
-				continue;
-		}
-
-		for (i = 0; i < n_pcimio_boards; i++) {
-			if (mite_device_id(mite) == ni_boards[i].device_id) {
-				dev->board_ptr = ni_boards + i;
-				devpriv->mite = mite;
-
-				return 0;
-			}
-		}
-	}
-	pr_warn("no device found\n");
-	mite_list_devices();
-	return -EIO;
-}
-
 static int pcimio_ai_change(struct comedi_device *dev,
 			    struct comedi_subdevice *s, unsigned long new_size)
 {
@@ -1765,7 +1755,7 @@ static int pcimio_dio_change(struct comedi_device *dev,
 static struct comedi_driver ni_pcimio_driver = {
 	.driver_name	= "ni_pcimio",
 	.module		= THIS_MODULE,
-	.attach		= pcimio_attach,
+	.attach_pci	= pcimio_attach_pci,
 	.detach		= pcimio_detach,
 };
 
@@ -1844,7 +1834,7 @@ static struct pci_driver ni_pcimio_pci_driver = {
 	.probe		= ni_pcimio_pci_probe,
 	.remove		= __devexit_p(ni_pcimio_pci_remove)
 };
-module_comedi_pci_driver(ni_pcimio_driver, ni_pcimio_pci_driver)
+module_comedi_pci_driver(ni_pcimio_driver, ni_pcimio_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
index a9611587460..8ee93d359be 100644
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -48,6 +48,7 @@ TODO:
 	Support use of both banks X and Y
 */
 
+#include "comedi_fc.h"
 #include "ni_tio_internal.h"
 #include "mite.h"
 
@@ -237,61 +238,35 @@ EXPORT_SYMBOL_GPL(ni_tio_cmd);
 int ni_tio_cmdtest(struct ni_gpct *counter, struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp;
-	int sources;
+	unsigned int sources;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
 	sources = TRIG_NOW | TRIG_INT | TRIG_OTHER;
 	if (ni_tio_counting_mode_registers_present(counter->counter_dev))
 		sources |= TRIG_EXT;
-	cmd->start_src &= sources;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_EXT | TRIG_OTHER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	sources = TRIG_NOW | TRIG_EXT | TRIG_OTHER;
-	cmd->convert_src &= sources;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, sources);
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_FOLLOW | TRIG_EXT | TRIG_OTHER);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_NOW | TRIG_EXT | TRIG_OTHER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique... */
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+
+	/* Step 2b : and mutually compatible */
 
-	if (cmd->start_src != TRIG_NOW &&
-	    cmd->start_src != TRIG_INT &&
-	    cmd->start_src != TRIG_EXT && cmd->start_src != TRIG_OTHER)
-		err++;
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_OTHER)
-		err++;
-	if (cmd->convert_src != TRIG_OTHER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_NONE)
-		err++;
-	/* ... and mutually compatible */
 	if (cmd->convert_src != TRIG_NOW && cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index bb72d0bc297..89305a14eb5 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -64,6 +64,7 @@ supported.
 #include <linux/ioport.h>
 #include <linux/delay.h>
 
+#include "comedi_fc.h"
 #include "8253.h"
 
 #define PCL711_SIZE 16
@@ -168,7 +169,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 	int data;
 	struct comedi_device *dev = d;
 	const struct pcl711_board *board = comedi_board(dev);
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 
 	if (!dev->attached) {
 		comedi_error(dev, "spurious interrupt");
@@ -266,42 +267,24 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 	int tmp;
 	int err = 0;
 
-	/* step 1 */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -520,7 +503,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret < 0)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* AI subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -536,7 +519,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->do_cmd = pcl711_ai_cmd;
 	}
 
-	s++;
+	s = &dev->subdevices[1];
 	/* AO subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -547,7 +530,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = pcl711_ao_insn;
 	s->insn_read = pcl711_ao_insn_read;
 
-	s++;
+	s = &dev->subdevices[2];
 	/* 16-bit digital input */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -557,7 +540,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_digital;
 	s->insn_bits = pcl711_di_insn_bits;
 
-	s++;
+	s = &dev->subdevices[3];
 	/* 16-bit digital out */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c
index c8fe23ca899..7b3c4293c01 100644
--- a/drivers/staging/comedi/drivers/pcl724.c
+++ b/drivers/staging/comedi/drivers/pcl724.c
@@ -99,6 +99,7 @@ static int subdev_8255mapped_cb(int dir, int port, int data,
 static int pcl724_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct pcl724_board *board = comedi_board(dev);
+	struct comedi_subdevice *s;
 	unsigned long iobase;
 	unsigned int iorange;
 	int ret, i, n_subdevices;
@@ -161,14 +162,13 @@ static int pcl724_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 
 	for (i = 0; i < dev->n_subdevices; i++) {
+		s = &dev->subdevices[i];
 		if (board->is_pet48) {
-			subdev_8255_init(dev, dev->subdevices + i,
-					 subdev_8255mapped_cb,
+			subdev_8255_init(dev, s, subdev_8255mapped_cb,
 					 (unsigned long)(dev->iobase +
 							 i * 0x1000));
 		} else
-			subdev_8255_init(dev, dev->subdevices + i,
-					 subdev_8255_cb,
+			subdev_8255_init(dev, s, subdev_8255_cb,
 					 (unsigned long)(dev->iobase +
 							 SIZE_8255 * i));
 	}
@@ -179,10 +179,13 @@ static int pcl724_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static void pcl724_detach(struct comedi_device *dev)
 {
 	const struct pcl724_board *board = comedi_board(dev);
+	struct comedi_subdevice *s;
 	int i;
 
-	for (i = 0; i < dev->n_subdevices; i++)
-		subdev_8255_cleanup(dev, dev->subdevices + i);
+	for (i = 0; i < dev->n_subdevices; i++) {
+		s = &dev->subdevices[i];
+		subdev_8255_cleanup(dev, s);
+	}
 #ifdef PCL724_IRQ
 	if (dev->irq)
 		free_irq(dev->irq, dev);
diff --git a/drivers/staging/comedi/drivers/pcl725.c b/drivers/staging/comedi/drivers/pcl725.c
index d5b60cf7c93..21fbc1ae1e7 100644
--- a/drivers/staging/comedi/drivers/pcl725.c
+++ b/drivers/staging/comedi/drivers/pcl725.c
@@ -62,7 +62,7 @@ static int pcl725_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* do */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -71,7 +71,7 @@ static int pcl725_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_bits = pcl725_do_insn;
 	s->range_table = &range_digital;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* di */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 2b10f1d8308..07e72de982a 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -290,7 +290,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* ao */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
@@ -316,7 +316,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			devpriv->bipolar[i] = 1;	/* bipolar range */
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* di */
 	if (!board->have_dio) {
 		s->type = COMEDI_SUBD_UNUSED;
@@ -330,7 +330,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->range_table = &range_digital;
 	}
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* do */
 	if (!board->have_dio) {
 		s->type = COMEDI_SUBD_UNUSED;
diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c
index 4675ec57082..e3de4993745 100644
--- a/drivers/staging/comedi/drivers/pcl730.c
+++ b/drivers/staging/comedi/drivers/pcl730.c
@@ -84,7 +84,7 @@ static int pcl730_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* Isolated do */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -94,7 +94,7 @@ static int pcl730_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_digital;
 	s->private = (void *)PCL730_IDIO_LO;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* Isolated di */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -104,7 +104,7 @@ static int pcl730_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_digital;
 	s->private = (void *)PCL730_IDIO_LO;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* TTL do */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -114,7 +114,7 @@ static int pcl730_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_digital;
 	s->private = (void *)PCL730_DIO_LO;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* TTL di */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 578fd8920be..3cf55ff9308 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -117,6 +117,7 @@
 #include <linux/io.h>
 #include <asm/dma.h>
 
+#include "comedi_fc.h"
 #include "8253.h"
 
 /* hardware types of the cards */
@@ -533,49 +534,31 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev,
 {
 	const struct pcl812_board *board = comedi_board(dev);
 	int err = 0;
+	unsigned int flags;
 	int tmp, divisor1, divisor2;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
 
-	tmp = cmd->convert_src;
 	if (devpriv->use_ext_trg)
-		cmd->convert_src &= TRIG_EXT;
+		flags = TRIG_EXT;
 	else
-		cmd->convert_src &= TRIG_TIMER;
-
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+		flags = TRIG_TIMER;
+	err |= cfc_check_trigger_src(&cmd->convert_src, flags);
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are
-	 * unique and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -806,7 +789,7 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
 	char err = 1;
 	unsigned int mask, timeout;
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	unsigned int next_chan;
 
 	s->async->events = 0;
@@ -909,7 +892,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev,
 static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	unsigned long dma_flags;
 	int len, bufptr;
 	short *ptr;
@@ -1267,7 +1250,7 @@ no_dma:
 
 	/* analog input */
 	if (board->n_aichan > 0) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_AI;
 		s->subdev_flags = SDF_READABLE;
 		switch (board->board_type) {
@@ -1409,7 +1392,7 @@ no_dma:
 
 	/* analog output */
 	if (board->n_aochan > 0) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_AO;
 		s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
 		s->n_chan = board->n_aochan;
@@ -1438,7 +1421,7 @@ no_dma:
 
 	/* digital input */
 	if (board->n_dichan > 0) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_DI;
 		s->subdev_flags = SDF_READABLE;
 		s->n_chan = board->n_dichan;
@@ -1451,7 +1434,7 @@ no_dma:
 
 	/* digital output */
 	if (board->n_dochan > 0) {
-		s = dev->subdevices + subdev;
+		s = &dev->subdevices[subdev];
 		s->type = COMEDI_SUBD_DO;
 		s->subdev_flags = SDF_WRITABLE;
 		s->n_chan = board->n_dochan;
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index ba6911f063c..0822de058e4 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -41,6 +41,7 @@ Configuration Options:
 #include <linux/io.h>
 #include <asm/dma.h>
 
+#include "comedi_fc.h"
 #include "8253.h"
 
 #define DEBUG(x) x
@@ -258,7 +259,7 @@ static int pcl816_ai_insn_read(struct comedi_device *dev,
 static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int low, hi;
 	int timeout = 50;	/* wait max 50us */
 
@@ -349,7 +350,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev,
 static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int len, bufptr, this_dma_buf;
 	unsigned long dma_flags;
 	short *ptr;
@@ -458,48 +459,23 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev,
 	      pcl816_cmdtest_out(-1, cmd);
 	     );
 
-	/* step 1: make sure trigger sources are trivially valid */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_EXT | TRIG_TIMER;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_EXT | TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
+	/* Step 2a : make sure trigger sources are unique */
 
-	/*
-	 * step 2: make sure trigger sources
-	 * are unique and mutually compatible
-	 */
-
-	if (cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_TIMER) {
-		cmd->convert_src = TRIG_TIMER;
-		err++;
-	}
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
 
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1183,7 +1159,7 @@ no_dma:
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	if (board->n_aichan > 0) {
 		s->type = COMEDI_SUBD_AI;
 		devpriv->sub_ai = s;
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index 34169c16fb9..d4b0859d81f 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -107,6 +107,7 @@ A word or two about DMA. Driver support DMA operations at two ways:
 #include <linux/io.h>
 #include <asm/dma.h>
 
+#include "comedi_fc.h"
 #include "8253.h"
 
 /* #define PCL818_MODE13_AO 1 */
@@ -477,7 +478,7 @@ static int pcl818_do_insn_bits(struct comedi_device *dev,
 static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int low;
 	int timeout = 50;	/* wait max 50us */
 
@@ -536,7 +537,7 @@ conv_finish:
 static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int i, len, bufptr;
 	unsigned long flags;
 	short *ptr;
@@ -615,7 +616,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	unsigned long tmp;
 	unsigned int top1, top2, i, bufptr;
 	long ofs_dats;
@@ -720,7 +721,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d)
 static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	int i, len, lo;
 
 	outb(0, dev->iobase + PCL818_FI_INTCLR);	/*  clear fifo int request */
@@ -811,7 +812,7 @@ static irqreturn_t interrupt_pcl818(int irq, void *d)
 			   being reprogrammed while a DMA transfer is in
 			   progress.
 			 */
-			struct comedi_subdevice *s = dev->subdevices + 0;
+			struct comedi_subdevice *s = &dev->subdevices[0];
 			devpriv->ai_act_scan = 0;
 			devpriv->neverending_ai = 0;
 			pcl818_ai_cancel(dev, s);
@@ -1261,43 +1262,23 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	int err = 0;
 	int tmp, divisor1 = 0, divisor2 = 0;
 
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
 
-	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
-		err++;
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1763,7 +1744,7 @@ no_dma:
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	if (!board->n_aichan_se) {
 		s->type = COMEDI_SUBD_UNUSED;
 	} else {
@@ -1829,7 +1810,7 @@ no_dma:
 		}
 	}
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	if (!board->n_aochan) {
 		s->type = COMEDI_SUBD_UNUSED;
 	} else {
@@ -1862,7 +1843,7 @@ no_dma:
 		}
 	}
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	if (!board->n_dichan) {
 		s->type = COMEDI_SUBD_UNUSED;
 	} else {
@@ -1875,7 +1856,7 @@ no_dma:
 		s->insn_bits = pcl818_di_insn_bits;
 	}
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	if (!board->n_dochan) {
 		s->type = COMEDI_SUBD_UNUSED;
 	} else {
diff --git a/drivers/staging/comedi/drivers/pcm3724.c b/drivers/staging/comedi/drivers/pcm3724.c
index 62c22ccfb78..4102547dc6a 100644
--- a/drivers/staging/comedi/drivers/pcm3724.c
+++ b/drivers/staging/comedi/drivers/pcm3724.c
@@ -119,6 +119,8 @@ static int compute_buffer(int config, int devno, struct comedi_subdevice *s)
 static void do_3724_config(struct comedi_device *dev,
 			   struct comedi_subdevice *s, int chanspec)
 {
+	struct comedi_subdevice *s_dio1 = &dev->subdevices[0];
+	struct comedi_subdevice *s_dio2 = &dev->subdevices[1];
 	int config;
 	int buffer_config;
 	unsigned long port_8255_cfg;
@@ -136,10 +138,10 @@ static void do_3724_config(struct comedi_device *dev,
 	if (!(s->io_bits & 0xff0000))
 		config |= CR_C_IO;
 
-	buffer_config = compute_buffer(0, 0, dev->subdevices);
-	buffer_config = compute_buffer(buffer_config, 1, (dev->subdevices) + 1);
+	buffer_config = compute_buffer(0, 0, s_dio1);
+	buffer_config = compute_buffer(buffer_config, 1, s_dio2);
 
-	if (s == dev->subdevices)
+	if (s == s_dio1)
 		port_8255_cfg = dev->iobase + _8255_CR;
 	else
 		port_8255_cfg = dev->iobase + SIZE_8255 + _8255_CR;
@@ -154,6 +156,7 @@ static void do_3724_config(struct comedi_device *dev,
 static void enable_chan(struct comedi_device *dev, struct comedi_subdevice *s,
 			int chanspec)
 {
+	struct comedi_subdevice *s_dio1 = &dev->subdevices[0];
 	unsigned int mask;
 	int gatecfg;
 	struct priv_pcm3724 *priv;
@@ -162,9 +165,9 @@ static void enable_chan(struct comedi_device *dev, struct comedi_subdevice *s,
 	priv = dev->private;
 
 	mask = 1 << CR_CHAN(chanspec);
-	if (s == dev->subdevices)	/*  subdev 0 */
+	if (s == s_dio1)
 		priv->dio_1 |= mask;
-	else		/* subdev 1 */
+	else
 		priv->dio_2 |= mask;
 
 	if (priv->dio_1 & 0xff0000)
@@ -231,6 +234,7 @@ static int pcm3724_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
 	const struct pcm3724_board *board = comedi_board(dev);
+	struct comedi_subdevice *s;
 	unsigned long iobase;
 	unsigned int iorange;
 	int ret, i, n_subdevices;
@@ -263,9 +267,10 @@ static int pcm3724_attach(struct comedi_device *dev,
 		return ret;
 
 	for (i = 0; i < dev->n_subdevices; i++) {
-		subdev_8255_init(dev, dev->subdevices + i, subdev_8255_cb,
+		s = &dev->subdevices[i];
+		subdev_8255_init(dev, s, subdev_8255_cb,
 				 (unsigned long)(dev->iobase + SIZE_8255 * i));
-		((dev->subdevices) + i)->insn_config = subdev_3724_insn_config;
+		s->insn_config = subdev_3724_insn_config;
 	}
 	return 0;
 }
@@ -273,11 +278,14 @@ static int pcm3724_attach(struct comedi_device *dev,
 static void pcm3724_detach(struct comedi_device *dev)
 {
 	const struct pcm3724_board *board = comedi_board(dev);
+	struct comedi_subdevice *s;
 	int i;
 
 	if (dev->subdevices) {
-		for (i = 0; i < dev->n_subdevices; i++)
-			subdev_8255_cleanup(dev, dev->subdevices + i);
+		for (i = 0; i < dev->n_subdevices; i++) {
+			s = &dev->subdevices[i];
+			subdev_8255_cleanup(dev, s);
+		}
 	}
 	if (dev->iobase)
 		release_region(dev->iobase, board->io_range);
diff --git a/drivers/staging/comedi/drivers/pcm3730.c b/drivers/staging/comedi/drivers/pcm3730.c
index d65e0bda2c4..067f14d2261 100644
--- a/drivers/staging/comedi/drivers/pcm3730.c
+++ b/drivers/staging/comedi/drivers/pcm3730.c
@@ -72,7 +72,7 @@ static int pcm3730_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->maxdata = 1;
@@ -81,7 +81,7 @@ static int pcm3730_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)PCM3730_DOA;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->maxdata = 1;
@@ -90,7 +90,7 @@ static int pcm3730_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)PCM3730_DOB;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
 	s->maxdata = 1;
@@ -99,7 +99,7 @@ static int pcm3730_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)PCM3730_DOC;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->maxdata = 1;
@@ -108,7 +108,7 @@ static int pcm3730_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)PCM3730_DIA;
 
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->maxdata = 1;
@@ -117,7 +117,7 @@ static int pcm3730_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->private = (void *)PCM3730_DIB;
 
-	s = dev->subdevices + 5;
+	s = &dev->subdevices[5];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->maxdata = 1;
diff --git a/drivers/staging/comedi/drivers/pcm_common.c b/drivers/staging/comedi/drivers/pcm_common.c
index 474af7bc6c8..85ee05ece9c 100644
--- a/drivers/staging/comedi/drivers/pcm_common.c
+++ b/drivers/staging/comedi/drivers/pcm_common.c
@@ -1,60 +1,30 @@
 #include "../comedidev.h"
+
+#include "comedi_fc.h"
 #include "pcm_common.h"
 
-/*
- * 'do_cmdtest' function for an 'INTERRUPT' subdevice.  This is for
- * the PCM drivers.
- */
 int comedi_pcm_cmdtest(struct comedi_device *dev,
 		       struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
 	int err = 0;
-	unsigned int tmp;
-
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= (TRIG_NOW | TRIG_INT);
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= (TRIG_COUNT | TRIG_NONE);
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and
-	 * mutually compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* these tests are true if more than one _src bit is set */
-	if ((cmd->start_src & (cmd->start_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_begin_src & (cmd->scan_begin_src - 1)) != 0)
-		err++;
-	if ((cmd->convert_src & (cmd->convert_src - 1)) != 0)
-		err++;
-	if ((cmd->scan_end_src & (cmd->scan_end_src - 1)) != 0)
-		err++;
-	if ((cmd->stop_src & (cmd->stop_src - 1)) != 0)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c
index 54d19c94396..5efeb9205c2 100644
--- a/drivers/staging/comedi/drivers/pcmad.c
+++ b/drivers/staging/comedi/drivers/pcmad.c
@@ -127,7 +127,7 @@ static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = board->name;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | AREF_GROUND;
 	s->n_chan = 16;		/* XXX */
diff --git a/drivers/staging/comedi/drivers/pcmda12.c b/drivers/staging/comedi/drivers/pcmda12.c
index 291ce7c1bdb..28af8f6873e 100644
--- a/drivers/staging/comedi/drivers/pcmda12.c
+++ b/drivers/staging/comedi/drivers/pcmda12.c
@@ -195,7 +195,7 @@ static int pcmda12_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s = dev->subdevices;
+	s = &dev->subdevices[0];
 	s->private = NULL;
 	s->maxdata = (0x1 << BITS) - 1;
 	s->range_table = &pcmda12_ranges;
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 3d2e6f01c4b..a10bf0a2987 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -526,6 +526,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 {
 	int asic, got1 = 0;
 	struct comedi_device *dev = (struct comedi_device *)d;
+	int i;
 
 	for (asic = 0; asic < MAX_ASICS; ++asic) {
 		if (irq == devpriv->asics[asic].irq) {
@@ -583,9 +584,8 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 				printk
 				    (KERN_DEBUG "got edge detect interrupt %d asic %d which_chans: %06x\n",
 				     irq, asic, triggered);
-				for (s = dev->subdevices + 2;
-				     s < dev->subdevices + dev->n_subdevices;
-				     ++s) {
+				for (i = 2; i < dev->n_subdevices; i++) {
+					s = &dev->subdevices[i];
 					/*
 					 * this is an interrupt subdev,
 					 * and it matches this asic!
@@ -1076,9 +1076,8 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return ret;
 
 	/* First, AI */
-	sdev_no = 0;
-	s = dev->subdevices + sdev_no;
-	s->private = devpriv->sprivs + sdev_no;
+	s = &dev->subdevices[0];
+	s->private = &devpriv->sprivs[0];
 	s->maxdata = (1 << board->ai_bits) - 1;
 	s->range_table = board->ai_range_table;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
@@ -1092,9 +1091,8 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	outb(0, subpriv->iobase + 4 + 3);
 
 	/* Next, AO */
-	++sdev_no;
-	s = dev->subdevices + sdev_no;
-	s->private = devpriv->sprivs + sdev_no;
+	s = &dev->subdevices[1];
+	s->private = &devpriv->sprivs[1];
 	s->maxdata = (1 << board->ao_bits) - 1;
 	s->range_table = board->ao_range_table;
 	s->subdev_flags = SDF_READABLE;
@@ -1108,14 +1106,13 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	outb(0, subpriv->iobase + 3);
 	outb(0, subpriv->iobase + 4 + 3);
 
-	++sdev_no;
 	port = 0;
 	asic = 0;
-	for (; sdev_no < (int)dev->n_subdevices; ++sdev_no) {
+	for (sdev_no = 2; sdev_no < dev->n_subdevices; ++sdev_no) {
 		int byte_no;
 
-		s = dev->subdevices + sdev_no;
-		s->private = devpriv->sprivs + sdev_no;
+		s = &dev->subdevices[sdev_no];
+		s->private = &devpriv->sprivs[sdev_no];
 		s->maxdata = 1;
 		s->range_table = &range_digital;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -1200,15 +1197,6 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				 * multiple irqs..
 				 */
 
-	if (irq[0]) {
-		printk(KERN_DEBUG "comedi%d: irq: %u\n", dev->minor, irq[0]);
-		if (board->dio_num_asics == 2 && irq[1])
-			printk(KERN_DEBUG "comedi%d: second ASIC irq: %u\n",
-					dev->minor, irq[1]);
-	} else {
-		printk(KERN_INFO "comedi%d: (IRQ mode disabled)\n", dev->minor);
-	}
-
 	printk(KERN_INFO "comedi%d: attached\n", dev->minor);
 
 	return 1;
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index feef3d02f35..0e32119bc3f 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -442,7 +442,7 @@ static void pcmuio_stop_intr(struct comedi_device *dev,
 
 	subpriv->intr.enabled_mask = 0;
 	subpriv->intr.active = 0;
-	s->async->inttrig = 0;
+	s->async->inttrig = NULL;
 	nports = subpriv->intr.num_asic_chans / CHANS_PER_PORT;
 	firstport = subpriv->intr.asic_chan / CHANS_PER_PORT;
 	switch_page(dev, asic, PAGE_ENAB);
@@ -456,6 +456,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 {
 	int asic, got1 = 0;
 	struct comedi_device *dev = (struct comedi_device *)d;
+	int i;
 
 	for (asic = 0; asic < MAX_ASICS; ++asic) {
 		if (irq == devpriv->asics[asic].irq) {
@@ -507,9 +508,8 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 				printk
 				    ("PCMUIO DEBUG: got edge detect interrupt %d asic %d which_chans: %06x\n",
 				     irq, asic, triggered);
-				for (s = dev->subdevices;
-				     s < dev->subdevices + dev->n_subdevices;
-				     ++s) {
+				for (i = 0; i < dev->n_subdevices; i++) {
+					s = &dev->subdevices[i];
 					if (subpriv->intr.asic == asic) {	/* this is an interrupt subdev, and it matches this asic! */
 						unsigned long flags;
 						unsigned oldevents;
@@ -683,7 +683,7 @@ pcmuio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 		return -EINVAL;
 
 	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
-	s->async->inttrig = 0;
+	s->async->inttrig = NULL;
 	if (subpriv->intr.active)
 		event = pcmuio_start_intr(dev, s);
 
@@ -811,8 +811,8 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	for (sdev_no = 0; sdev_no < (int)dev->n_subdevices; ++sdev_no) {
 		int byte_no;
 
-		s = dev->subdevices + sdev_no;
-		s->private = devpriv->sprivs + sdev_no;
+		s = &dev->subdevices[sdev_no];
+		s->private = &devpriv->sprivs[sdev_no];
 		s->maxdata = 1;
 		s->range_table = &range_digital;
 		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/poc.c b/drivers/staging/comedi/drivers/poc.c
index c253bb9ef33..78dfe167b14 100644
--- a/drivers/staging/comedi/drivers/poc.c
+++ b/drivers/staging/comedi/drivers/poc.c
@@ -164,7 +164,7 @@ static int poc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -ENOMEM;
 
 	/* analog output subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = board->type;
 	s->n_chan = board->n_chan;
 	s->maxdata = (1 << board->n_bits) - 1;
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index a029147c9b6..3e276f7a338 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -56,6 +56,8 @@ Devices: [Quatech] DAQP-208 (daqp), DAQP-308
 
 #include <linux/completion.h>
 
+#include "comedi_fc.h"
+
 /* Maximum number of separate DAQP devices we'll allow */
 #define MAX_DEV         4
 
@@ -456,51 +458,26 @@ static int daqp_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources
-	 * are unique and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
-	if (cmd->convert_src != TRIG_NOW && cmd->convert_src != TRIG_TIMER)
-		err++;
-	if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -878,7 +855,7 @@ static int daqp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	printk(KERN_INFO "comedi%d: attaching daqp%d (io 0x%04lx)\n",
 	       dev->minor, it->options[0], dev->iobase);
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	s->private = local;
 	s->type = COMEDI_SUBD_AI;
@@ -892,7 +869,7 @@ static int daqp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->do_cmd = daqp_ai_cmd;
 	s->cancel = daqp_ai_cancel;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	dev->write_subdev = s;
 	s->private = local;
 	s->type = COMEDI_SUBD_AO;
@@ -903,7 +880,7 @@ static int daqp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table = &range_daqp_ao;
 	s->insn_write = daqp_ao_insn_write;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->private = local;
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -911,7 +888,7 @@ static int daqp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->len_chanlist = 1;
 	s->insn_read = daqp_di_insn_read;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->private = local;
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITEABLE;
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 112fdc3e9c6..41d24b08913 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -106,6 +106,8 @@ Configuration options:
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
+
 #define DRV_NAME "rtd520"
 
 /*======================================================================
@@ -783,7 +785,7 @@ static irqreturn_t rtd_interrupt(int irq,	/* interrupt number (ignored) */
 				 void *d)
 {				/* our data *//* cpu context (ignored) */
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->subdevices + 0;	/* analog in subdevice */
+	struct comedi_subdevice *s = &dev->subdevices[0];
 	struct rtdPrivate *devpriv = dev->private;
 	u32 overrun;
 	u16 status;
@@ -964,7 +966,7 @@ static int rtd_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 /*
   cmdtest tests a particular command to see if it is valid.
   Using the cmdtest ioctl, a user can create a valid cmd
-  and then have it executed by the cmd ioctl (asyncronously).
+  and then have it executed by the cmd ioctl (asynchronously).
 
   cmdtest returns 1,2,3,4 or 0, depending on which tests
   the command passes.
@@ -976,52 +978,25 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique
-	   and mutually compatible */
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT) {
-		err++;
-	}
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1619,9 +1594,8 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	struct rtdPrivate *devpriv;
 	struct pci_dev *pcidev;
 	struct comedi_subdevice *s;
+	resource_size_t pci_base;
 	int ret;
-	resource_size_t physLas1;	/* data area */
-	resource_size_t physLcfg;	/* PLX9080 */
 #ifdef USE_DMA
 	int index;
 #endif
@@ -1655,20 +1629,15 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		printk(KERN_INFO "Failed to enable PCI device and request regions.\n");
 		return ret;
 	}
-
-	/*
-	 * Initialize base addresses
-	 */
-	/* Get the physical address from PCI config */
-	dev->iobase = pci_resource_start(pcidev, LAS0_PCIINDEX);
-	physLas1 = pci_resource_start(pcidev, LAS1_PCIINDEX);
-	physLcfg = pci_resource_start(pcidev, LCFG_PCIINDEX);
-	/* Now have the kernel map this into memory */
-	/* ASSUME page aligned */
-	devpriv->las0 = ioremap_nocache(dev->iobase, LAS0_PCISIZE);
-	devpriv->las1 = ioremap_nocache(physLas1, LAS1_PCISIZE);
-	devpriv->lcfg = ioremap_nocache(physLcfg, LCFG_PCISIZE);
-
+	dev->iobase = 1;	/* the "detach" needs this */
+
+	/* Initialize the base addresses */
+	pci_base = pci_resource_start(pcidev, LAS0_PCIINDEX);
+	devpriv->las0 = ioremap_nocache(pci_base, LAS0_PCISIZE);
+	pci_base = pci_resource_start(pcidev, LAS1_PCIINDEX);
+	devpriv->las1 = ioremap_nocache(pci_base, LAS1_PCISIZE);
+	pci_base = pci_resource_start(pcidev, LCFG_PCIINDEX);
+	devpriv->lcfg = ioremap_nocache(pci_base, LCFG_PCISIZE);
 	if (!devpriv->las0 || !devpriv->las1 || !devpriv->lcfg)
 		return -ENOMEM;
 
@@ -1712,7 +1681,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	dev->read_subdev = s;
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
@@ -1732,7 +1701,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->cancel = rtd_ai_cancel;
 	/* s->poll = rtd_ai_poll; *//* not ready yet */
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -1742,7 +1711,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = rtd_ao_winsn;
 	s->insn_read = rtd_ao_rinsn;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* digital i/o subdevice */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -1754,7 +1723,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_config = rtd_dio_insn_config;
 
 	/* timer/counter subdevices (not currently supported) */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 3;
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
index f7fa940d978..137885b1681 100644
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -360,7 +360,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	devpriv->dac1_coding = it->options[8];
 	devpriv->muxgain_bits = -1;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* ai subdevice */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -379,7 +379,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		break;
 	}
 
-	s++;
+	s = &dev->subdevices[1];
 	if (board->has_ao) {
 		/* ao subdevice (only on rti815) */
 		s->type = COMEDI_SUBD_AO;
@@ -409,7 +409,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	s++;
+	s = &dev->subdevices[2];
 	/* di */
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
@@ -418,7 +418,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->maxdata = 1;
 	s->range_table = &range_digital;
 
-	s++;
+	s = &dev->subdevices[3];
 	/* do */
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -429,7 +429,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 /* don't yet know how to deal with counter/timers */
 #if 0
-	s++;
+	s = &dev->subdevices[4];
 	/* do */
 	s->type = COMEDI_SUBD_TIMER;
 #endif
diff --git a/drivers/staging/comedi/drivers/rti802.c b/drivers/staging/comedi/drivers/rti802.c
index fc16508181d..3f9d0278be5 100644
--- a/drivers/staging/comedi/drivers/rti802.c
+++ b/drivers/staging/comedi/drivers/rti802.c
@@ -111,7 +111,7 @@ static int rti802_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices;
+	s = &dev->subdevices[0];
 	/* ao subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index 737a194dfce..a1e256293bd 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -83,36 +83,6 @@ comedi_config /dev/comedi0 s526 0x2C0,0x3
 #define REG_EED 0x32
 #define REG_EEC 0x34
 
-static const int s526_ports[] = {
-	REG_TCR,
-	REG_WDC,
-	REG_DAC,
-	REG_ADC,
-	REG_ADD,
-	REG_DIO,
-	REG_IER,
-	REG_ISR,
-	REG_MSC,
-	REG_C0L,
-	REG_C0H,
-	REG_C0M,
-	REG_C0C,
-	REG_C1L,
-	REG_C1H,
-	REG_C1M,
-	REG_C1C,
-	REG_C2L,
-	REG_C2H,
-	REG_C2M,
-	REG_C2C,
-	REG_C3L,
-	REG_C3H,
-	REG_C3M,
-	REG_C3C,
-	REG_EED,
-	REG_EEC
-};
-
 struct counter_mode_register_t {
 #if defined(__LITTLE_ENDIAN_BITFIELD)
 	unsigned short coutSource:1;
@@ -148,122 +118,48 @@ union cmReg {
 	unsigned short value;
 };
 
-#define MAX_GPCT_CONFIG_DATA 6
-
-/* Different Application Classes for GPCT Subdevices */
-/* The list is not exhaustive and needs discussion! */
-enum S526_GPCT_APP_CLASS {
-	CountingAndTimeMeasurement,
-	SinglePulseGeneration,
-	PulseTrainGeneration,
-	PositionMeasurement,
-	Miscellaneous
-};
-
-/* Config struct for different GPCT subdevice Application Classes and
-   their options
-*/
-struct s526GPCTConfig {
-	enum S526_GPCT_APP_CLASS app;
-	int data[MAX_GPCT_CONFIG_DATA];
-};
-
-/*
- * Board descriptions for two imaginary boards.  Describing the
- * boards in this way is optional, and completely driver-dependent.
- * Some drivers use arrays such as this, other do not.
- */
-struct s526_board {
-	const char *name;
-	int gpct_chans;
-	int gpct_bits;
-	int ad_chans;
-	int ad_bits;
-	int da_chans;
-	int da_bits;
-	int have_dio;
-};
-
-static const struct s526_board s526_boards[] = {
-	{
-	 .name = "s526",
-	 .gpct_chans = 4,
-	 .gpct_bits = 24,
-	 .ad_chans = 8,
-	 .ad_bits = 16,
-	 .da_chans = 4,
-	 .da_bits = 16,
-	 .have_dio = 1,
-	 }
-};
-
-#define ADDR_REG(reg) (dev->iobase + (reg))
-#define ADDR_CHAN_REG(reg, chan) (dev->iobase + (reg) + (chan) * 8)
-
-/* this structure is for data unique to this hardware driver.  If
-   several hardware drivers keep similar information in this structure,
-   feel free to suggest moving the variable to the struct comedi_device
-   struct.
-*/
 struct s526_private {
 	unsigned int ao_readback[2];
-	struct s526GPCTConfig s526_gpct_config[4];
-	unsigned short s526_ai_config;
+	unsigned int gpct_config[4];
+	unsigned short ai_config;
 };
 
-/*
- * most drivers define the following macro to make it easy to
- * access the private structure.
- */
-#define devpriv ((struct s526_private *)dev->private)
-
 static int s526_gpct_rinsn(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_insn *insn,
+			   struct comedi_subdevice *s,
+			   struct comedi_insn *insn,
 			   unsigned int *data)
 {
-	int i;			/*  counts the Data */
-	int counter_channel = CR_CHAN(insn->chanspec);
-	unsigned short datalow;
-	unsigned short datahigh;
-
-	/*  Check if (n > 0) */
-	if (insn->n <= 0) {
-		printk(KERN_ERR "s526: INSN_READ: n should be > 0\n");
-		return -EINVAL;
-	}
-	/*  Read the low word first */
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned long chan_iobase = dev->iobase + chan * 8;
+	unsigned int lo;
+	unsigned int hi;
+	int i;
+
 	for (i = 0; i < insn->n; i++) {
-		datalow = inw(ADDR_CHAN_REG(REG_C0L, counter_channel));
-		datahigh = inw(ADDR_CHAN_REG(REG_C0H, counter_channel));
-		data[i] = (int)(datahigh & 0x00FF);
-		data[i] = (data[i] << 16) | (datalow & 0xFFFF);
-		/* printk("s526 GPCT[%d]: %x(0x%04x, 0x%04x)\n",
-		   counter_channel, data[i], datahigh, datalow); */
+		/* Read the low word first */
+		lo = inw(chan_iobase + REG_C0L) & 0xffff;
+		hi = inw(chan_iobase + REG_C0H) & 0xff;
+
+		data[i] = (hi << 16) | lo;
 	}
-	return i;
+
+	return insn->n;
 }
 
 static int s526_gpct_insn_config(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
-	int subdev_channel = CR_CHAN(insn->chanspec);	/*  Unpack chanspec */
-	int i;
-	short value;
+	struct s526_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned long chan_iobase = dev->iobase + chan * 8;
+	unsigned int val;
 	union cmReg cmReg;
 
-	/* printk("s526: GPCT_INSN_CONFIG: Configuring Channel %d\n",
-						subdev_channel); */
-
-	for (i = 0; i < MAX_GPCT_CONFIG_DATA; i++) {
-		devpriv->s526_gpct_config[subdev_channel].data[i] =
-		    insn->data[i];
-/* printk("data[%d]=%x\n", i, insn->data[i]); */
-	}
-
 	/*  Check what type of Counter the user requested, data[0] contains */
 	/*  the Application type */
-	switch (insn->data[0]) {
+	switch (data[0]) {
 	case INSN_CONFIG_GPCT_QUADRATURE_ENCODER:
 		/*
 		   data[0]: Application Type
@@ -271,9 +167,7 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		   data[2]: Pre-load Register Value
 		   data[3]: Conter Control Register
 		 */
-		printk(KERN_INFO "s526: GPCT_INSN_CONFIG: Configuring Encoder\n");
-		devpriv->s526_gpct_config[subdev_channel].app =
-		    PositionMeasurement;
+		devpriv->gpct_config[chan] = data[0];
 
 #if 0
 		/*  Example of Counter Application */
@@ -290,34 +184,32 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
 		cmReg.reg.reserved = 0;
 
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
-		outw(0x0001, ADDR_CHAN_REG(REG_C0H, subdev_channel));
-		outw(0x3C68, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		outw(0x0001, chan_iobase + REG_C0H);
+		outw(0x3C68, chan_iobase + REG_C0L);
 
 		/*  Reset the counter */
-		outw(0x8000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+		outw(0x8000, chan_iobase + REG_C0C);
 		/*  Load the counter from PR0 */
-		outw(0x4000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+		outw(0x4000, chan_iobase + REG_C0C);
 
 		/*  Reset RCAP (fires one-shot) */
-		outw(0x0008, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+		outw(0x0008, chan_iobase + REG_C0C);
 
 #endif
 
 #if 1
 		/*  Set Counter Mode Register */
-		cmReg.value = insn->data[1] & 0xFFFF;
-
-/* printk("s526: Counter Mode register=%x\n", cmReg.value); */
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		cmReg.value = data[1] & 0xffff;
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
 		/*  Reset the counter if it is software preload */
 		if (cmReg.reg.autoLoadResetRcap == 0) {
 			/*  Reset the counter */
-			outw(0x8000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+			outw(0x8000, chan_iobase + REG_C0C);
 			/* Load the counter from PR0
-			 * outw(0x4000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+			 * outw(0x4000, chan_iobase + REG_C0C);
 			 */
 		}
 #else
@@ -325,47 +217,47 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		cmReg.reg.countDirCtrl = 0;
 
 		/*  data[1] contains GPCT_X1, GPCT_X2 or GPCT_X4 */
-		if (insn->data[1] == GPCT_X2)
+		if (data[1] == GPCT_X2)
 			cmReg.reg.clockSource = 1;
-		else if (insn->data[1] == GPCT_X4)
+		else if (data[1] == GPCT_X4)
 			cmReg.reg.clockSource = 2;
 		else
 			cmReg.reg.clockSource = 0;
 
 		/*  When to take into account the indexpulse: */
-		/*if (insn->data[2] == GPCT_IndexPhaseLowLow) {
-		} else if (insn->data[2] == GPCT_IndexPhaseLowHigh) {
-		} else if (insn->data[2] == GPCT_IndexPhaseHighLow) {
-		} else if (insn->data[2] == GPCT_IndexPhaseHighHigh) {
+		/*if (data[2] == GPCT_IndexPhaseLowLow) {
+		} else if (data[2] == GPCT_IndexPhaseLowHigh) {
+		} else if (data[2] == GPCT_IndexPhaseHighLow) {
+		} else if (data[2] == GPCT_IndexPhaseHighHigh) {
 		}*/
 		/*  Take into account the index pulse? */
-		if (insn->data[3] == GPCT_RESET_COUNTER_ON_INDEX)
+		if (data[3] == GPCT_RESET_COUNTER_ON_INDEX)
 			/*  Auto load with INDEX^ */
 			cmReg.reg.autoLoadResetRcap = 4;
 
 		/*  Set Counter Mode Register */
-		cmReg.value = (short)(insn->data[1] & 0xFFFF);
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		cmReg.value = data[1] & 0xffff;
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
 		/*  Load the pre-load register high word */
-		value = (short)((insn->data[2] >> 16) & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0H, subdev_channel));
+		val = (data[2] >> 16) & 0xffff;
+		outw(val, chan_iobase + REG_C0H);
 
 		/*  Load the pre-load register low word */
-		value = (short)(insn->data[2] & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		val = data[2] & 0xffff;
+		outw(val, chan_iobase + REG_C0L);
 
 		/*  Write the Counter Control Register */
-		if (insn->data[3] != 0) {
-			value = (short)(insn->data[3] & 0xFFFF);
-			outw(value, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+		if (data[3]) {
+			val = data[3] & 0xffff;
+			outw(val, chan_iobase + REG_C0C);
 		}
 		/*  Reset the counter if it is software preload */
 		if (cmReg.reg.autoLoadResetRcap == 0) {
 			/*  Reset the counter */
-			outw(0x8000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+			outw(0x8000, chan_iobase + REG_C0C);
 			/*  Load the counter from PR0 */
-			outw(0x4000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+			outw(0x4000, chan_iobase + REG_C0C);
 		}
 #endif
 		break;
@@ -378,40 +270,38 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		   data[3]: Pre-load Register 1 Value
 		   data[4]: Conter Control Register
 		 */
-		printk(KERN_INFO "s526: GPCT_INSN_CONFIG: Configuring SPG\n");
-		devpriv->s526_gpct_config[subdev_channel].app =
-		    SinglePulseGeneration;
+		devpriv->gpct_config[chan] = data[0];
 
 		/*  Set Counter Mode Register */
-		cmReg.value = (short)(insn->data[1] & 0xFFFF);
+		cmReg.value = data[1] & 0xffff;
 		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
 		/*  Load the pre-load register 0 high word */
-		value = (short)((insn->data[2] >> 16) & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0H, subdev_channel));
+		val = (data[2] >> 16) & 0xffff;
+		outw(val, chan_iobase + REG_C0H);
 
 		/*  Load the pre-load register 0 low word */
-		value = (short)(insn->data[2] & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		val = data[2] & 0xffff;
+		outw(val, chan_iobase + REG_C0L);
 
 		/*  Set Counter Mode Register */
-		cmReg.value = (short)(insn->data[1] & 0xFFFF);
+		cmReg.value = data[1] & 0xffff;
 		cmReg.reg.preloadRegSel = 1;	/*  PR1 */
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
 		/*  Load the pre-load register 1 high word */
-		value = (short)((insn->data[3] >> 16) & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0H, subdev_channel));
+		val = (data[3] >> 16) & 0xffff;
+		outw(val, chan_iobase + REG_C0H);
 
 		/*  Load the pre-load register 1 low word */
-		value = (short)(insn->data[3] & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		val = data[3] & 0xffff;
+		outw(val, chan_iobase + REG_C0L);
 
 		/*  Write the Counter Control Register */
-		if (insn->data[4] != 0) {
-			value = (short)(insn->data[4] & 0xFFFF);
-			outw(value, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+		if (data[4]) {
+			val = data[4] & 0xffff;
+			outw(val, chan_iobase + REG_C0C);
 		}
 		break;
 
@@ -423,45 +313,42 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		   data[3]: Pre-load Register 1 Value
 		   data[4]: Conter Control Register
 		 */
-		printk(KERN_INFO "s526: GPCT_INSN_CONFIG: Configuring PTG\n");
-		devpriv->s526_gpct_config[subdev_channel].app =
-		    PulseTrainGeneration;
+		devpriv->gpct_config[chan] = data[0];
 
 		/*  Set Counter Mode Register */
-		cmReg.value = (short)(insn->data[1] & 0xFFFF);
+		cmReg.value = data[1] & 0xffff;
 		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
 		/*  Load the pre-load register 0 high word */
-		value = (short)((insn->data[2] >> 16) & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0H, subdev_channel));
+		val = (data[2] >> 16) & 0xffff;
+		outw(val, chan_iobase + REG_C0H);
 
 		/*  Load the pre-load register 0 low word */
-		value = (short)(insn->data[2] & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		val = data[2] & 0xffff;
+		outw(val, chan_iobase + REG_C0L);
 
 		/*  Set Counter Mode Register */
-		cmReg.value = (short)(insn->data[1] & 0xFFFF);
+		cmReg.value = data[1] & 0xffff;
 		cmReg.reg.preloadRegSel = 1;	/*  PR1 */
-		outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
+		outw(cmReg.value, chan_iobase + REG_C0M);
 
 		/*  Load the pre-load register 1 high word */
-		value = (short)((insn->data[3] >> 16) & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0H, subdev_channel));
+		val = (data[3] >> 16) & 0xffff;
+		outw(val, chan_iobase + REG_C0H);
 
 		/*  Load the pre-load register 1 low word */
-		value = (short)(insn->data[3] & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		val = data[3] & 0xffff;
+		outw(val, chan_iobase + REG_C0L);
 
 		/*  Write the Counter Control Register */
-		if (insn->data[4] != 0) {
-			value = (short)(insn->data[4] & 0xFFFF);
-			outw(value, ADDR_CHAN_REG(REG_C0C, subdev_channel));
+		if (data[4]) {
+			val = data[4] & 0xffff;
+			outw(val, chan_iobase + REG_C0C);
 		}
 		break;
 
 	default:
-		printk(KERN_ERR "s526: unsupported GPCT_insn_config\n");
 		return -EINVAL;
 		break;
 	}
@@ -470,65 +357,40 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 }
 
 static int s526_gpct_winsn(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_insn *insn,
+			   struct comedi_subdevice *s,
+			   struct comedi_insn *insn,
 			   unsigned int *data)
 {
-	int subdev_channel = CR_CHAN(insn->chanspec);	/*  Unpack chanspec */
-	short value;
-	union cmReg cmReg;
-
-	printk(KERN_INFO "s526: GPCT_INSN_WRITE on channel %d\n",
-					subdev_channel);
-	cmReg.value = inw(ADDR_CHAN_REG(REG_C0M, subdev_channel));
-	printk(KERN_INFO "s526: Counter Mode Register: %x\n", cmReg.value);
-	/*  Check what Application of Counter this channel is configured for */
-	switch (devpriv->s526_gpct_config[subdev_channel].app) {
-	case PositionMeasurement:
-		printk(KERN_INFO "S526: INSN_WRITE: PM\n");
-		outw(0xFFFF & ((*data) >> 16), ADDR_CHAN_REG(REG_C0H,
-							     subdev_channel));
-		outw(0xFFFF & (*data), ADDR_CHAN_REG(REG_C0L, subdev_channel));
-		break;
+	struct s526_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned long chan_iobase = dev->iobase + chan * 8;
 
-	case SinglePulseGeneration:
-		printk(KERN_INFO "S526: INSN_WRITE: SPG\n");
-		outw(0xFFFF & ((*data) >> 16), ADDR_CHAN_REG(REG_C0H,
-							     subdev_channel));
-		outw(0xFFFF & (*data), ADDR_CHAN_REG(REG_C0L, subdev_channel));
-		break;
+	inw(chan_iobase + REG_C0M);	/* Is this read required? */
 
-	case PulseTrainGeneration:
+	/*  Check what Application of Counter this channel is configured for */
+	switch (devpriv->gpct_config[chan]) {
+	case INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR:
 		/* data[0] contains the PULSE_WIDTH
 		   data[1] contains the PULSE_PERIOD
 		   @pre PULSE_PERIOD > PULSE_WIDTH > 0
 		   The above periods must be expressed as a multiple of the
 		   pulse frequency on the selected source
 		 */
-		printk(KERN_INFO "S526: INSN_WRITE: PTG\n");
-		if ((insn->data[1] > insn->data[0]) && (insn->data[0] > 0)) {
-			(devpriv->s526_gpct_config[subdev_channel]).data[0] =
-			    insn->data[0];
-			(devpriv->s526_gpct_config[subdev_channel]).data[1] =
-			    insn->data[1];
-		} else {
-			printk(KERN_ERR "s526: INSN_WRITE: PTG: Problem with Pulse params -> %d %d\n",
-				insn->data[0], insn->data[1]);
+		if ((data[1] <= data[0]) || !data[0])
 			return -EINVAL;
-		}
 
-		value = (short)((*data >> 16) & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0H, subdev_channel));
-		value = (short)(*data & 0xFFFF);
-		outw(value, ADDR_CHAN_REG(REG_C0L, subdev_channel));
+		/* Fall thru to write the PULSE_WIDTH */
+
+	case INSN_CONFIG_GPCT_QUADRATURE_ENCODER:
+	case INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR:
+		outw((data[0] >> 16) & 0xffff, chan_iobase + REG_C0H);
+		outw(data[0] & 0xffff, chan_iobase + REG_C0L);
 		break;
-	default:		/*  Impossible */
-		printk
-		    ("s526: INSN_WRITE: Functionality %d not implemented yet\n",
-		     devpriv->s526_gpct_config[subdev_channel].app);
+
+	default:
 		return -EINVAL;
-		break;
 	}
-	/*  return the number of samples written */
+
 	return insn->n;
 }
 
@@ -537,6 +399,7 @@ static int s526_ai_insn_config(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
+	struct s526_private *devpriv = dev->private;
 	int result = -EINVAL;
 
 	if (insn->n < 1)
@@ -552,62 +415,50 @@ static int s526_ai_insn_config(struct comedi_device *dev,
 	 * INSN_READ handler. */
 
 	/*  Enable ADC interrupt */
-	outw(ISR_ADC_DONE, ADDR_REG(REG_IER));
-/* printk("s526: ADC current value: 0x%04x\n", inw(ADDR_REG(REG_ADC))); */
-	devpriv->s526_ai_config = (data[0] & 0x3FF) << 5;
+	outw(ISR_ADC_DONE, dev->iobase + REG_IER);
+	devpriv->ai_config = (data[0] & 0x3ff) << 5;
 	if (data[1] > 0)
-		devpriv->s526_ai_config |= 0x8000;	/* set the delay */
+		devpriv->ai_config |= 0x8000;	/* set the delay */
 
-	devpriv->s526_ai_config |= 0x0001;	/*  ADC start bit. */
+	devpriv->ai_config |= 0x0001;		/* ADC start bit */
 
 	return result;
 }
 
-/*
- * "instructions" read/write data in "one-shot" or "software-triggered"
- * mode.
- */
 static int s526_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			 struct comedi_insn *insn, unsigned int *data)
 {
+	struct s526_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	int n, i;
-	int chan = CR_CHAN(insn->chanspec);
 	unsigned short value;
 	unsigned int d;
 	unsigned int status;
 
 	/* Set configured delay, enable channel for this channel only,
 	 * select "ADC read" channel, set "ADC start" bit. */
-	value = (devpriv->s526_ai_config & 0x8000) |
-	    ((1 << 5) << chan) | (chan << 1) | 0x0001;
+	value = (devpriv->ai_config & 0x8000) |
+		((1 << 5) << chan) | (chan << 1) | 0x0001;
 
 	/* convert n samples */
 	for (n = 0; n < insn->n; n++) {
 		/* trigger conversion */
-		outw(value, ADDR_REG(REG_ADC));
-/* printk("s526: Wrote 0x%04x to ADC\n", value); */
-/* printk("s526: ADC reg=0x%04x\n", inw(ADDR_REG(REG_ADC))); */
+		outw(value, dev->iobase + REG_ADC);
 
 #define TIMEOUT 100
 		/* wait for conversion to end */
 		for (i = 0; i < TIMEOUT; i++) {
-			status = inw(ADDR_REG(REG_ISR));
+			status = inw(dev->iobase + REG_ISR);
 			if (status & ISR_ADC_DONE) {
-				outw(ISR_ADC_DONE, ADDR_REG(REG_ISR));
+				outw(ISR_ADC_DONE, dev->iobase + REG_ISR);
 				break;
 			}
 		}
-		if (i == TIMEOUT) {
-			/* printk() should be used instead of printk()
-			 * whenever the code can be called from real-time. */
-			printk(KERN_ERR "s526: ADC(0x%04x) timeout\n",
-			       inw(ADDR_REG(REG_ISR)));
+		if (i == TIMEOUT)
 			return -ETIMEDOUT;
-		}
 
 		/* read data */
-		d = inw(ADDR_REG(REG_ADD));
-/* printk("AI[%d]=0x%04x\n", n, (unsigned short)(d & 0xFFFF)); */
+		d = inw(dev->iobase + REG_ADD);
 
 		/* munge data */
 		data[n] = d ^ 0x8000;
@@ -620,40 +471,30 @@ static int s526_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 static int s526_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			 struct comedi_insn *insn, unsigned int *data)
 {
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
+	struct s526_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned short val;
+	int i;
 
-/* printk("s526_ao_winsn\n"); */
 	val = chan << 1;
-/* outw(val, dev->iobase + REG_DAC); */
-	outw(val, ADDR_REG(REG_DAC));
+	outw(val, dev->iobase + REG_DAC);
 
-	/* Writing a list of values to an AO channel is probably not
-	 * very useful, but that's how the interface is defined. */
 	for (i = 0; i < insn->n; i++) {
-		/* a typical programming sequence */
-		/* write the data to preload register
-		 * outw(data[i], dev->iobase + REG_ADD);
-		 */
-		/* write the data to preload register */
-		outw(data[i], ADDR_REG(REG_ADD));
+		outw(data[i], dev->iobase + REG_ADD);
 		devpriv->ao_readback[chan] = data[i];
-/* outw(val + 1, dev->iobase + REG_DAC);  starts the D/A conversion. */
-		outw(val + 1, ADDR_REG(REG_DAC)); /*starts the D/A conversion.*/
+		/* starts the D/A conversion */
+		outw(val + 1, dev->iobase + REG_DAC);
 	}
 
-	/* return the number of samples read/written */
 	return i;
 }
 
-/* AO subdevices should have a read insn as well as a write insn.
- * Usually this means copying a value stored in devpriv. */
 static int s526_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			 struct comedi_insn *insn, unsigned int *data)
 {
+	struct s526_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	int i;
-	int chan = CR_CHAN(insn->chanspec);
 
 	for (i = 0; i < insn->n; i++)
 		data[i] = devpriv->ao_readback[chan];
@@ -661,30 +502,18 @@ static int s526_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	return i;
 }
 
-/* DIO devices are slightly special.  Although it is possible to
- * implement the insn_read/insn_write interface, it is much more
- * useful to applications if you implement the insn_bits interface.
- * This allows packed reading/writing of the DIO channels.  The
- * comedi core can convert between insn_bits and insn_read/write */
 static int s526_dio_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn, unsigned int *data)
 {
-	/* The insn data is a mask in data[0] and the new data
-	 * in data[1], each channel cooresponding to a bit. */
 	if (data[0]) {
 		s->state &= ~data[0];
 		s->state |= data[0] & data[1];
-		/* Write out the new digital output lines */
-		outw(s->state, ADDR_REG(REG_DIO));
+
+		outw(s->state, dev->iobase + REG_DIO);
 	}
 
-	/* on return, data[1] contains the value of the digital
-	 * input and output lines. */
-	data[1] = inw(ADDR_REG(REG_DIO)) & 0xFF; /* low 8 bits are the data */
-	/* or we could just return the software copy of the output values if
-	 * it was a purely digital output subdevice */
-	/* data[1]=s->state & 0xFF; */
+	data[1] = inw(dev->iobase + REG_DIO) & 0xff;
 
 	return insn->n;
 }
@@ -693,16 +522,9 @@ static int s526_dio_insn_config(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-	int chan = CR_CHAN(insn->chanspec);
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	int group, mask;
 
-	printk(KERN_INFO "S526 DIO insn_config\n");
-
-	/* The input or output configuration of each digital line is
-	 * configured by a special insn_config instruction.  chanspec
-	 * contains the channel to be changed, and data[0] contains the
-	 * value COMEDI_INPUT or COMEDI_OUTPUT. */
-
 	group = chan >> 2;
 	mask = 0xF << (group << 2);
 	switch (data[0]) {
@@ -721,88 +543,60 @@ static int s526_dio_insn_config(struct comedi_device *dev,
 	default:
 		return -EINVAL;
 	}
-	outw(s->state, ADDR_REG(REG_DIO));
+	outw(s->state, dev->iobase + REG_DIO);
 
 	return 1;
 }
 
 static int s526_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
-	const struct s526_board *board = comedi_board(dev);
+	struct s526_private *devpriv;
 	struct comedi_subdevice *s;
 	int iobase;
-	int i, n;
 	int ret;
-/* short value; */
-/* int subdev_channel = 0; */
-	union cmReg cmReg;
 
-	printk(KERN_INFO "comedi%d: s526: ", dev->minor);
+	dev->board_name = dev->driver->driver_name;
 
 	iobase = it->options[0];
-	if (!iobase || !request_region(iobase, S526_IOSIZE, board->name)) {
+	if (!iobase || !request_region(iobase, S526_IOSIZE, dev->board_name)) {
 		comedi_error(dev, "I/O port conflict");
 		return -EIO;
 	}
 	dev->iobase = iobase;
 
-	printk("iobase=0x%lx\n", dev->iobase);
-
-	/*** make it a little quieter, exw, 8/29/06
-	for (i = 0; i < S526_NUM_PORTS; i++) {
-		printk("0x%02x: 0x%04x\n", ADDR_REG(s526_ports[i]),
-				inw(ADDR_REG(s526_ports[i])));
-	}
-	***/
-
-	dev->board_name = board->name;
-
-/*
- * Allocate the private structure area.  alloc_private() is a
- * convenient macro defined in comedidev.h.
- */
-	if (alloc_private(dev, sizeof(struct s526_private)) < 0)
-		return -ENOMEM;
+	ret = alloc_private(dev, sizeof(*devpriv));
+	if (ret)
+		return ret;
+	devpriv = dev->private;
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* GENERAL-PURPOSE COUNTER/TIME (GPCT) */
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL;
-	/* KG: What does SDF_LSAMPL (see multiq3.c) mean? */
-	s->n_chan = board->gpct_chans;
+	s->n_chan = 4;
 	s->maxdata = 0x00ffffff;	/* 24 bit counter */
 	s->insn_read = s526_gpct_rinsn;
 	s->insn_config = s526_gpct_insn_config;
 	s->insn_write = s526_gpct_winsn;
 
-	/* Command are not implemented yet, however they are necessary to
-	   allocate the necessary memory for the comedi_async struct (used
-	   to trigger the GPCT in case of pulsegenerator function */
-	/* s->do_cmd = s526_gpct_cmd; */
-	/* s->do_cmdtest = s526_gpct_cmdtest; */
-	/* s->cancel = s526_gpct_cancel; */
-
-	s = dev->subdevices + 1;
-	/* dev->read_subdev=s; */
+	s = &dev->subdevices[1];
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
-	/* we support differential */
 	s->subdev_flags = SDF_READABLE | SDF_DIFF;
 	/* channels 0 to 7 are the regular differential inputs */
 	/* channel 8 is "reference 0" (+10V), channel 9 is "reference 1" (0V) */
 	s->n_chan = 10;
 	s->maxdata = 0xffff;
 	s->range_table = &range_bipolar10;
-	s->len_chanlist = 16;	/* This is the maximum chanlist length that
-				   the board can handle */
+	s->len_chanlist = 16;
 	s->insn_read = s526_ai_rinsn;
 	s->insn_config = s526_ai_insn_config;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -812,105 +606,18 @@ static int s526_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = s526_ao_winsn;
 	s->insn_read = s526_ao_rinsn;
 
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	/* digital i/o subdevice */
-	if (board->have_dio) {
-		s->type = COMEDI_SUBD_DIO;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-		s->n_chan = 8;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_bits = s526_dio_insn_bits;
-		s->insn_config = s526_dio_insn_config;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	printk(KERN_INFO "attached\n");
-
-	return 1;
-
-#if 0
-	/*  Example of Counter Application */
-	/* One-shot (software trigger) */
-	cmReg.reg.coutSource = 0;	/*  out RCAP */
-	cmReg.reg.coutPolarity = 1;	/*  Polarity inverted */
-	cmReg.reg.autoLoadResetRcap = 1;/*  Auto load 0:disabled, 1:enabled */
-	cmReg.reg.hwCtEnableSource = 3;	/*  NOT RCAP */
-	cmReg.reg.ctEnableCtrl = 2;	/*  Hardware */
-	cmReg.reg.clockSource = 2;	/*  Internal */
-	cmReg.reg.countDir = 1;	/*  Down */
-	cmReg.reg.countDirCtrl = 1;	/*  Software */
-	cmReg.reg.outputRegLatchCtrl = 0;	/*  latch on read */
-	cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-	cmReg.reg.reserved = 0;
-
-	outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, subdev_channel));
-
-	outw(0x0001, ADDR_CHAN_REG(REG_C0H, subdev_channel));
-	outw(0x3C68, ADDR_CHAN_REG(REG_C0L, subdev_channel));
-
-	/*  Reset the counter */
-	outw(0x8000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
-	/*  Load the counter from PR0 */
-	outw(0x4000, ADDR_CHAN_REG(REG_C0C, subdev_channel));
-	/*  Reset RCAP (fires one-shot) */
-	outw(0x0008, ADDR_CHAN_REG(REG_C0C, subdev_channel));
-
-#else
-
-	/*  Set Counter Mode Register */
-	cmReg.reg.coutSource = 0;	/*  out RCAP */
-	cmReg.reg.coutPolarity = 0;	/*  Polarity inverted */
-	cmReg.reg.autoLoadResetRcap = 0;	/*  Auto load disabled */
-	cmReg.reg.hwCtEnableSource = 2;	/*  NOT RCAP */
-	cmReg.reg.ctEnableCtrl = 1;	/*  1: Software,  >1 : Hardware */
-	cmReg.reg.clockSource = 3;	/*  x4 */
-	cmReg.reg.countDir = 0;	/*  up */
-	cmReg.reg.countDirCtrl = 0;	/*  quadrature */
-	cmReg.reg.outputRegLatchCtrl = 0;	/*  latch on read */
-	cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-	cmReg.reg.reserved = 0;
-
-	n = 0;
-	printk(KERN_INFO "Mode reg=0x%04x, 0x%04lx\n",
-		cmReg.value, ADDR_CHAN_REG(REG_C0M, n));
-	outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, n));
-	udelay(1000);
-	printk(KERN_INFO "Read back mode reg=0x%04x\n",
-		inw(ADDR_CHAN_REG(REG_C0M, n)));
-
-	/*  Load the pre-load register high word */
-/* value = (short) (0x55); */
-/* outw(value, ADDR_CHAN_REG(REG_C0H, n)); */
-
-	/*  Load the pre-load register low word */
-/* value = (short)(0xaa55); */
-/* outw(value, ADDR_CHAN_REG(REG_C0L, n)); */
-
-	/*  Write the Counter Control Register */
-/* outw(value, ADDR_CHAN_REG(REG_C0C, 0)); */
-
-	/*  Reset the counter if it is software preload */
-	if (cmReg.reg.autoLoadResetRcap == 0) {
-		/*  Reset the counter */
-		outw(0x8000, ADDR_CHAN_REG(REG_C0C, n));
-		/*  Load the counter from PR0 */
-		outw(0x4000, ADDR_CHAN_REG(REG_C0C, n));
-	}
+	s->type = COMEDI_SUBD_DIO;
+	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+	s->n_chan = 8;
+	s->maxdata = 1;
+	s->range_table = &range_digital;
+	s->insn_bits = s526_dio_insn_bits;
+	s->insn_config = s526_dio_insn_config;
 
-	outw(cmReg.value, ADDR_CHAN_REG(REG_C0M, n));
-	udelay(1000);
-	printk(KERN_INFO "Read back mode reg=0x%04x\n",
-			inw(ADDR_CHAN_REG(REG_C0M, n)));
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
 
-#endif
-	printk(KERN_INFO "Current registres:\n");
-
-	for (i = 0; i < S526_NUM_PORTS; i++) {
-		printk(KERN_INFO "0x%02lx: 0x%04x\n",
-			ADDR_REG(s526_ports[i]), inw(ADDR_REG(s526_ports[i])));
-	}
 	return 1;
 }
 
@@ -925,9 +632,6 @@ static struct comedi_driver s526_driver = {
 	.module		= THIS_MODULE,
 	.attach		= s526_attach,
 	.detach		= s526_detach,
-	.board_name	= &s526_boards[0].name,
-	.offset		= sizeof(struct s526_board),
-	.num_names	= ARRAY_SIZE(s526_boards),
 };
 module_comedi_driver(s526_driver);
 
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index f90578e5e72..551d68b7837 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -32,11 +32,7 @@ Authors: Gianluca Palli <gpalli@deis.unibo.it>,
 Updated: Fri, 15 Feb 2008 10:28:42 +0000
 Status: experimental
 
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-  If bus/slot is not specified, the first supported
-  PCI device found will be used.
+Configuration options: not applicable, uses PCI auto config
 
 INSN_CONFIG instructions:
   analog input:
@@ -82,45 +78,8 @@ INSN_CONFIG instructions:
 #define PCI_SUBVENDOR_ID_S626 0x6000
 #define PCI_SUBDEVICE_ID_S626 0x0272
 
-struct s626_board {
-	const char *name;
-	int vendor_id;
-	int device_id;
-	int subvendor_id;
-	int subdevice_id;
-	int ai_chans;
-	int ai_bits;
-	int ao_chans;
-	int ao_bits;
-	int dio_chans;
-	int dio_banks;
-	int enc_chans;
-};
-
-static const struct s626_board s626_boards[] = {
-	{
-	 .name = "s626",
-	 .vendor_id = PCI_VENDOR_ID_S626,
-	 .device_id = PCI_DEVICE_ID_S626,
-	 .subvendor_id = PCI_SUBVENDOR_ID_S626,
-	 .subdevice_id = PCI_SUBDEVICE_ID_S626,
-	 .ai_chans = S626_ADC_CHANNELS,
-	 .ai_bits = 14,
-	 .ao_chans = S626_DAC_CHANNELS,
-	 .ao_bits = 13,
-	 .dio_chans = S626_DIO_CHANNELS,
-	 .dio_banks = S626_DIO_BANKS,
-	 .enc_chans = S626_ENCODER_CHANNELS,
-	 }
-};
-
-#define thisboard ((const struct s626_board *)dev->board_ptr)
-
 struct s626_private {
-	struct pci_dev *pdev;
 	void __iomem *base_addr;
-	int got_regions;
-	short allocatedBuf;
 	uint8_t ai_cmd_running;	/*  ai_cmd is running */
 	uint8_t ai_continous;	/*  continous acquisition */
 	int ai_sample_count;	/*  number of samples to acquire */
@@ -139,9 +98,7 @@ struct s626_private {
 	/* Pointer to logical adrs of DMA buffer used to hold DAC  data. */
 	uint16_t Dacpol;	/* Image of DAC polarity register. */
 	uint8_t TrimSetpoint[12];	/* Images of TrimDAC setpoints */
-	uint16_t ChargeEnabled;	/* Image of MISC2 Battery */
 	/* Charge Enabled (0 or WRMISC2_CHARGE_ENABLE). */
-	uint16_t WDInterval;	/* Image of MISC2 watchdog interval control bits. */
 	uint32_t I2CAdrs;
 	/* I2C device address for onboard EEPROM (board rev dependent). */
 	/*   short         I2Cards; */
@@ -1548,56 +1505,28 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	int tmp;
 
-	/* cmdtest tests a particular command to see if it is valid.  Using
-	 * the cmdtest ioctl, a user can create a valid cmd and then have it
-	 * executes by the cmd ioctl.
-	 *
-	 * cmdtest returns 1,2,3,4 or 0, depending on which tests the
-	 * command passes. */
-
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT | TRIG_EXT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT | TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src,
+					TRIG_NOW | TRIG_INT | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT | TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually
-	   compatible */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT
-	    && cmd->scan_begin_src != TRIG_FOLLOW)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1847,6 +1776,9 @@ static int s626_dio_insn_config(struct comedi_device *dev,
 /* Now this function initializes the value of the counter (data[0])
    and set the subdevice. To complete with trigger and interrupt
    configuration */
+/* FIXME: data[0] is supposed to be an INSN_CONFIG_xxx constant indicating
+ * what is being configured, but this function appears to be using data[0]
+ * as a variable. */
 static int s626_enc_insn_config(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
@@ -1868,7 +1800,7 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 	/*   (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
 	k->SetMode(dev, k, Setup, TRUE);
-	Preload(dev, k, *(insn->data));
+	Preload(dev, k, data[0]);
 	k->PulseIndex(dev, k);
 	SetLatchSource(dev, k, valueSrclatch);
 	k->SetEnable(dev, k, (uint16_t) (enab != 0));
@@ -1920,6 +1852,7 @@ static void WriteMISC2(struct comedi_device *dev, uint16_t NewImage)
 static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
 		      size_t bsize)
 {
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	void *vbptr;
 	dma_addr_t vpptr;
 
@@ -1930,7 +1863,7 @@ static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
 	vbptr = pdma->LogicalBase;
 	vpptr = pdma->PhysicalBase;
 	if (vbptr) {
-		pci_free_consistent(devpriv->pdev, bsize, vbptr, vpptr);
+		pci_free_consistent(pcidev, bsize, vbptr, vpptr);
 		pdma->LogicalBase = NULL;
 		pdma->PhysicalBase = 0;
 	}
@@ -2476,146 +2409,317 @@ static void CountersInit(struct comedi_device *dev)
 	}
 }
 
-static struct pci_dev *s626_find_pci(struct comedi_device *dev,
-				     struct comedi_devconfig *it)
+static int s626_allocate_dma_buffers(struct comedi_device *dev)
 {
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-	int i;
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	void *addr;
+	dma_addr_t appdma;
 
-	for (i = 0; i < ARRAY_SIZE(s626_boards) && !pcidev; i++) {
-		do {
-			pcidev = pci_get_subsys(s626_boards[i].vendor_id,
-						s626_boards[i].device_id,
-						s626_boards[i].subvendor_id,
-						s626_boards[i].subdevice_id,
-						pcidev);
-
-			if ((bus || slot) && pcidev) {
-				/* matches requested bus/slot */
-				if (pcidev->bus->number == bus &&
-				    PCI_SLOT(pcidev->devfn) == slot)
-					break;
-			} else {
-				break;
-			}
-		} while (1);
-	}
-	return pcidev;
+	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
+	if (!addr)
+		return -ENOMEM;
+	devpriv->ANABuf.LogicalBase = addr;
+	devpriv->ANABuf.PhysicalBase = appdma;
+
+	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
+	if (!addr)
+		return -ENOMEM;
+	devpriv->RPSBuf.LogicalBase = addr;
+	devpriv->RPSBuf.PhysicalBase = appdma;
+
+	return 0;
 }
 
-static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static void s626_initialize(struct comedi_device *dev)
 {
-/*   uint8_t	PollList; */
-/*   uint16_t	AdcData; */
-/*   uint16_t	StartVal; */
-/*   uint16_t	index; */
-/*   unsigned int data[16]; */
-	int result;
+	dma_addr_t pPhysBuf;
+	uint16_t chan;
 	int i;
-	int ret;
-	resource_size_t resourceStart;
-	dma_addr_t appdma;
-	struct comedi_subdevice *s;
 
-	if (alloc_private(dev, sizeof(struct s626_private)) < 0)
-		return -ENOMEM;
+	/* Enable DEBI and audio pins, enable I2C interface */
+	MC_ENABLE(P_MC1, MC1_DEBI | MC1_AUDIO | MC1_I2C);
 
-	devpriv->pdev = s626_find_pci(dev, it);
-	if (!devpriv->pdev) {
-		printk(KERN_ERR "s626_attach: Board not present!!!\n");
-		return -ENODEV;
-	}
+	/*
+	 *  Configure DEBI operating mode
+	 *
+	 *   Local bus is 16 bits wide
+	 *   Declare DEBI transfer timeout interval
+	 *   Set up byte lane steering
+	 *   Intel-compatible local bus (DEBI never times out)
+	 */
+	WR7146(P_DEBICFG, DEBI_CFG_SLAVE16 |
+			  (DEBI_TOUT << DEBI_CFG_TOUT_BIT) |
+			  DEBI_SWAP | DEBI_CFG_INTEL);
+
+	/* Disable MMU paging */
+	WR7146(P_DEBIPAGE, DEBI_PAGE_DISABLE);
 
-	result = comedi_pci_enable(devpriv->pdev, "s626");
-	if (result < 0) {
-		printk(KERN_ERR "s626_attach: comedi_pci_enable fails\n");
-		return -ENODEV;
+	/* Init GPIO so that ADC Start* is negated */
+	WR7146(P_GPIO, GPIO_BASE | GPIO1_HI);
+
+	/* I2C device address for onboard eeprom (revb) */
+	devpriv->I2CAdrs = 0xA0;
+
+	/*
+	 * Issue an I2C ABORT command to halt any I2C
+	 * operation in progress and reset BUSY flag.
+	 */
+	WR7146(P_I2CSTAT, I2C_CLKSEL | I2C_ABORT);
+	MC_ENABLE(P_MC2, MC2_UPLD_IIC);
+	while ((RR7146(P_MC2) & MC2_UPLD_IIC) == 0)
+		;
+
+	/*
+	 * Per SAA7146 data sheet, write to STATUS
+	 * reg twice to reset all  I2C error flags.
+	 */
+	for (i = 0; i < 2; i++) {
+		WR7146(P_I2CSTAT, I2C_CLKSEL);
+		MC_ENABLE(P_MC2, MC2_UPLD_IIC);
+		while (!MC_TEST(P_MC2, MC2_UPLD_IIC))
+			;
 	}
-	devpriv->got_regions = 1;
 
-	resourceStart = pci_resource_start(devpriv->pdev, 0);
+	/*
+	 * Init audio interface functional attributes: set DAC/ADC
+	 * serial clock rates, invert DAC serial clock so that
+	 * DAC data setup times are satisfied, enable DAC serial
+	 * clock out.
+	 */
+	WR7146(P_ACON2, ACON2_INIT);
+
+	/*
+	 * Set up TSL1 slot list, which is used to control the
+	 * accumulation of ADC data: RSD1 = shift data in on SD1.
+	 * SIB_A1  = store data uint8_t at next available location
+	 * in FB BUFFER1 register.
+	 */
+	WR7146(P_TSL1, RSD1 | SIB_A1);
+	WR7146(P_TSL1 + 4, RSD1 | SIB_A1 | EOS);
+
+	/* Enable TSL1 slot list so that it executes all the time */
+	WR7146(P_ACON1, ACON1_ADCSTART);
+
+	/*
+	 * Initialize RPS registers used for ADC
+	 */
+
+	/* Physical start of RPS program */
+	WR7146(P_RPSADDR1, (uint32_t)devpriv->RPSBuf.PhysicalBase);
+	/* RPS program performs no explicit mem writes */
+	WR7146(P_RPSPAGE1, 0);
+	/* Disable RPS timeouts */
+	WR7146(P_RPS1_TOUT, 0);
+
+#if 0
+	/*
+	 * SAA7146 BUG WORKAROUND
+	 *
+	 * Initialize SAA7146 ADC interface to a known state by
+	 * invoking ADCs until FB BUFFER 1 register shows that it
+	 * is correctly receiving ADC data. This is necessary
+	 * because the SAA7146 ADC interface does not start up in
+	 * a defined state after a PCI reset.
+	 */
+
+	{
+	uint8_t PollList;
+	uint16_t AdcData;
+	uint16_t StartVal;
+	uint16_t index;
+	unsigned int data[16];
+
+	/* Create a simple polling list for analog input channel 0 */
+	PollList = EOPL;
+	ResetADC(dev, &PollList);
 
-	devpriv->base_addr = ioremap(resourceStart, SIZEOF_ADDRESS_SPACE);
-	if (devpriv->base_addr == NULL) {
-		printk(KERN_ERR "s626_attach: IOREMAP failed\n");
-		return -ENODEV;
+	/* Get initial ADC value */
+	s626_ai_rinsn(dev, dev->subdevices, NULL, data);
+	StartVal = data[0];
+
+	/*
+	 * VERSION 2.01 CHANGE: TIMEOUT ADDED TO PREVENT HANGED EXECUTION.
+	 *
+	 * Invoke ADCs until the new ADC value differs from the initial
+	 * value or a timeout occurs.  The timeout protects against the
+	 * possibility that the driver is restarting and the ADC data is a
+	 * fixed value resulting from the applied ADC analog input being
+	 * unusually quiet or at the rail.
+	 */
+	for (index = 0; index < 500; index++) {
+		s626_ai_rinsn(dev, dev->subdevices, NULL, data);
+		AdcData = data[0];
+		if (AdcData != StartVal)
+			break;
 	}
 
-	if (devpriv->base_addr) {
-		/* disable master interrupt */
-		writel(0, devpriv->base_addr + P_IER);
+	}
+#endif	/* SAA7146 BUG WORKAROUND */
 
-		/* soft reset */
-		writel(MC1_SOFT_RESET, devpriv->base_addr + P_MC1);
+	/*
+	 * Initialize the DAC interface
+	 */
 
-		/* DMA FIXME DMA// */
+	/*
+	 * Init Audio2's output DMAC attributes:
+	 *   burst length = 1 DWORD
+	 *   threshold = 1 DWORD.
+	 */
+	WR7146(P_PCI_BT_A, 0);
 
-		/* adc buffer allocation */
-		devpriv->allocatedBuf = 0;
+	/*
+	 * Init Audio2's output DMA physical addresses.  The protection
+	 * address is set to 1 DWORD past the base address so that a
+	 * single DWORD will be transferred each time a DMA transfer is
+	 * enabled.
+	 */
+	pPhysBuf = devpriv->ANABuf.PhysicalBase +
+		   (DAC_WDMABUF_OS * sizeof(uint32_t));
+	WR7146(P_BASEA2_OUT, (uint32_t) pPhysBuf);
+	WR7146(P_PROTA2_OUT, (uint32_t) (pPhysBuf + sizeof(uint32_t)));
 
-		devpriv->ANABuf.LogicalBase =
-		    pci_alloc_consistent(devpriv->pdev, DMABUF_SIZE, &appdma);
+	/*
+	 * Cache Audio2's output DMA buffer logical address.  This is
+	 * where DAC data is buffered for A2 output DMA transfers.
+	 */
+	devpriv->pDacWBuf = (uint32_t *)devpriv->ANABuf.LogicalBase +
+			    DAC_WDMABUF_OS;
 
-		if (devpriv->ANABuf.LogicalBase == NULL) {
-			printk(KERN_ERR "s626_attach: DMA Memory mapping error\n");
-			return -ENOMEM;
-		}
+	/*
+	 * Audio2's output channels does not use paging.  The
+	 * protection violation handling bit is set so that the
+	 * DMAC will automatically halt and its PCI address pointer
+	 * will be reset when the protection address is reached.
+	 */
+	WR7146(P_PAGEA2_OUT, 8);
 
-		devpriv->ANABuf.PhysicalBase = appdma;
+	/*
+	 * Initialize time slot list 2 (TSL2), which is used to control
+	 * the clock generation for and serialization of data to be sent
+	 * to the DAC devices.  Slot 0 is a NOP that is used to trap TSL
+	 * execution; this permits other slots to be safely modified
+	 * without first turning off the TSL sequencer (which is
+	 * apparently impossible to do).  Also, SD3 (which is driven by a
+	 * pull-up resistor) is shifted in and stored to the MSB of
+	 * FB_BUFFER2 to be used as evidence that the slot sequence has
+	 * not yet finished executing.
+	 */
 
-		devpriv->allocatedBuf++;
+	/* Slot 0: Trap TSL execution, shift 0xFF into FB_BUFFER2 */
+	SETVECT(0, XSD2 | RSD3 | SIB_A2 | EOS);
 
-		devpriv->RPSBuf.LogicalBase =
-		    pci_alloc_consistent(devpriv->pdev, DMABUF_SIZE, &appdma);
+	/*
+	 * Initialize slot 1, which is constant.  Slot 1 causes a
+	 * DWORD to be transferred from audio channel 2's output FIFO
+	 * to the FIFO's output buffer so that it can be serialized
+	 * and sent to the DAC during subsequent slots.  All remaining
+	 * slots are dynamically populated as required by the target
+	 * DAC device.
+	 */
 
-		if (devpriv->RPSBuf.LogicalBase == NULL) {
-			printk(KERN_ERR "s626_attach: DMA Memory mapping error\n");
-			return -ENOMEM;
-		}
+	/* Slot 1: Fetch DWORD from Audio2's output FIFO */
+	SETVECT(1, LF_A2);
+
+	/* Start DAC's audio interface (TSL2) running */
+	WR7146(P_ACON1, ACON1_DACSTART);
+
+	/*
+	 * Init Trim DACs to calibrated values.  Do it twice because the
+	 * SAA7146 audio channel does not always reset properly and
+	 * sometimes causes the first few TrimDAC writes to malfunction.
+	 */
+	LoadTrimDACs(dev);
+	LoadTrimDACs(dev);
+
+	/*
+	 * Manually init all gate array hardware in case this is a soft
+	 * reset (we have no way of determining whether this is a warm
+	 * or cold start).  This is necessary because the gate array will
+	 * reset only in response to a PCI hard reset; there is no soft
+	 * reset function.
+	 */
 
-		devpriv->RPSBuf.PhysicalBase = appdma;
+	/*
+	 * Init all DAC outputs to 0V and init all DAC setpoint and
+	 * polarity images.
+	 */
+	for (chan = 0; chan < S626_DAC_CHANNELS; chan++)
+		SetDAC(dev, chan, 0);
 
-		devpriv->allocatedBuf++;
+	/* Init counters */
+	CountersInit(dev);
 
-	}
+	/*
+	 * Without modifying the state of the Battery Backup enab, disable
+	 * the watchdog timer, set DIO channels 0-5 to operate in the
+	 * standard DIO (vs. counter overflow) mode, disable the battery
+	 * charger, and reset the watchdog interval selector to zero.
+	 */
+	WriteMISC2(dev, (uint16_t)(DEBIread(dev, LP_RDMISC2) &
+				   MISC2_BATT_ENABLE));
 
-	dev->board_ptr = s626_boards;
-	dev->board_name = thisboard->name;
+	/* Initialize the digital I/O subsystem */
+	s626_dio_init(dev);
 
-	ret = comedi_alloc_subdevices(dev, 6);
+	/* enable interrupt test */
+	/* writel(IRQ_GPIO3 | IRQ_RPS1, devpriv->base_addr + P_IER); */
+}
+
+static int s626_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
+{
+	struct comedi_subdevice *s;
+	int ret;
+
+	comedi_set_hw_dev(dev, &pcidev->dev);
+	dev->board_name = dev->driver->driver_name;
+
+	if (alloc_private(dev, sizeof(struct s626_private)) < 0)
+		return -ENOMEM;
+
+	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
 		return ret;
+	dev->iobase = 1;	/* detach needs this */
 
-	dev->iobase = (unsigned long)devpriv->base_addr;
-	dev->irq = devpriv->pdev->irq;
+	devpriv->base_addr = ioremap(pci_resource_start(pcidev, 0),
+				     pci_resource_len(pcidev, 0));
+	if (!devpriv->base_addr)
+		return -ENOMEM;
 
-	/* set up interrupt handler */
-	if (dev->irq == 0) {
-		printk(KERN_ERR " unknown irq (bad)\n");
-	} else {
-		ret = request_irq(dev->irq, s626_irq_handler, IRQF_SHARED,
-				  "s626", dev);
+	/* disable master interrupt */
+	writel(0, devpriv->base_addr + P_IER);
 
-		if (ret < 0) {
-			printk(KERN_ERR " irq not available\n");
-			dev->irq = 0;
-		}
+	/* soft reset */
+	writel(MC1_SOFT_RESET, devpriv->base_addr + P_MC1);
+
+	/* DMA FIXME DMA// */
+
+	ret = s626_allocate_dma_buffers(dev);
+	if (ret)
+		return ret;
+
+	if (pcidev->irq) {
+		ret = request_irq(pcidev->irq, s626_irq_handler, IRQF_SHARED,
+				  dev->board_name, dev);
+
+		if (ret == 0)
+			dev->irq = pcidev->irq;
 	}
 
+	ret = comedi_alloc_subdevices(dev, 6);
+	if (ret)
+		return ret;
+
 	s = dev->subdevices + 0;
 	/* analog input subdevice */
 	dev->read_subdev = s;
 	/* we support single-ended (ground) and differential */
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_CMD_READ;
-	s->n_chan = thisboard->ai_chans;
+	s->n_chan = S626_ADC_CHANNELS;
 	s->maxdata = (0xffff >> 2);
 	s->range_table = &s626_range_table;
-	s->len_chanlist = thisboard->ai_chans;	/* This is the maximum chanlist
-						   length that the board can
-						   handle */
+	s->len_chanlist = S626_ADC_CHANNELS;
 	s->insn_config = s626_ai_insn_config;
 	s->insn_read = s626_ai_insn_read;
 	s->do_cmd = s626_ai_cmd;
@@ -2626,7 +2730,7 @@ static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-	s->n_chan = thisboard->ao_chans;
+	s->n_chan = S626_DAC_CHANNELS;
 	s->maxdata = (0x3fff);
 	s->range_table = &range_bipolar10;
 	s->insn_write = s626_ao_winsn;
@@ -2672,7 +2776,7 @@ static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* encoder (counter) subdevice */
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE | SDF_LSAMPL;
-	s->n_chan = thisboard->enc_chans;
+	s->n_chan = S626_ENCODER_CHANNELS;
 	s->private = enc_private_data;
 	s->insn_config = s626_enc_insn_config;
 	s->insn_read = s626_enc_insn_read;
@@ -2680,269 +2784,17 @@ static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->maxdata = 0xffffff;
 	s->range_table = &range_unknown;
 
-	/* stop ai_command */
-	devpriv->ai_cmd_running = 0;
-
-	if (devpriv->base_addr && (devpriv->allocatedBuf == 2)) {
-		dma_addr_t pPhysBuf;
-		uint16_t chan;
-
-		/*  enab DEBI and audio pins, enable I2C interface. */
-		MC_ENABLE(P_MC1, MC1_DEBI | MC1_AUDIO | MC1_I2C);
-		/*  Configure DEBI operating mode. */
-		WR7146(P_DEBICFG, DEBI_CFG_SLAVE16	/*  Local bus is 16 */
-		       /*  bits wide. */
-		       | (DEBI_TOUT << DEBI_CFG_TOUT_BIT)
-
-		       /*  Declare DEBI */
-		       /*  transfer timeout */
-		       /*  interval. */
-		       |DEBI_SWAP	/*  Set up byte lane */
-		       /*  steering. */
-		       | DEBI_CFG_INTEL);	/*  Intel-compatible */
-		/*  local bus (DEBI */
-		/*  never times out). */
-
-		/* DEBI INIT S626 WR7146( P_DEBICFG, DEBI_CFG_INTEL | DEBI_CFG_TOQ */
-		/* | DEBI_CFG_INCQ| DEBI_CFG_16Q); //end */
-
-		/*  Paging is disabled. */
-		WR7146(P_DEBIPAGE, DEBI_PAGE_DISABLE);	/*  Disable MMU paging. */
-
-		/*  Init GPIO so that ADC Start* is negated. */
-		WR7146(P_GPIO, GPIO_BASE | GPIO1_HI);
-
-		/* IsBoardRevA is a boolean that indicates whether the board is RevA.
-		 *
-		 * VERSION 2.01 CHANGE: REV A & B BOARDS NOW SUPPORTED BY DYNAMIC
-		 * EEPROM ADDRESS SELECTION.  Initialize the I2C interface, which
-		 * is used to access the onboard serial EEPROM.  The EEPROM's I2C
-		 * DeviceAddress is hardwired to a value that is dependent on the
-		 * 626 board revision.  On all board revisions, the EEPROM stores
-		 * TrimDAC calibration constants for analog I/O.  On RevB and
-		 * higher boards, the DeviceAddress is hardwired to 0 to enable
-		 * the EEPROM to also store the PCI SubVendorID and SubDeviceID;
-		 * this is the address at which the SAA7146 expects a
-		 * configuration EEPROM to reside.  On RevA boards, the EEPROM
-		 * device address, which is hardwired to 4, prevents the SAA7146
-		 * from retrieving PCI sub-IDs, so the SAA7146 uses its built-in
-		 * default values, instead.
-		 */
-
-		/*     devpriv->I2Cards= IsBoardRevA ? 0xA8 : 0xA0; // Set I2C EEPROM */
-		/*  DeviceType (0xA0) */
-		/*  and DeviceAddress<<1. */
-
-		devpriv->I2CAdrs = 0xA0;	/*  I2C device address for onboard */
-		/*  eeprom(revb) */
+	s626_initialize(dev);
 
-		/*  Issue an I2C ABORT command to halt any I2C operation in */
-		/* progress and reset BUSY flag. */
-		WR7146(P_I2CSTAT, I2C_CLKSEL | I2C_ABORT);
-		/*  Write I2C control: abort any I2C activity. */
-		MC_ENABLE(P_MC2, MC2_UPLD_IIC);
-		/*  Invoke command  upload */
-		while ((RR7146(P_MC2) & MC2_UPLD_IIC) == 0)
-			;
-		/*  and wait for upload to complete. */
-
-		/* Per SAA7146 data sheet, write to STATUS reg twice to
-		 * reset all  I2C error flags. */
-		for (i = 0; i < 2; i++) {
-			WR7146(P_I2CSTAT, I2C_CLKSEL);
-			/*  Write I2C control: reset  error flags. */
-			MC_ENABLE(P_MC2, MC2_UPLD_IIC);	/*  Invoke command upload */
-			while (!MC_TEST(P_MC2, MC2_UPLD_IIC))
-				;
-			/* and wait for upload to complete. */
-		}
-
-		/* Init audio interface functional attributes: set DAC/ADC
-		 * serial clock rates, invert DAC serial clock so that
-		 * DAC data setup times are satisfied, enable DAC serial
-		 * clock out.
-		 */
+	dev_info(dev->class_dev, "%s attached\n", dev->board_name);
 
-		WR7146(P_ACON2, ACON2_INIT);
-
-		/* Set up TSL1 slot list, which is used to control the
-		 * accumulation of ADC data: RSD1 = shift data in on SD1.
-		 * SIB_A1  = store data uint8_t at next available location in
-		 * FB BUFFER1  register. */
-		WR7146(P_TSL1, RSD1 | SIB_A1);
-		/*  Fetch ADC high data uint8_t. */
-		WR7146(P_TSL1 + 4, RSD1 | SIB_A1 | EOS);
-		/*  Fetch ADC low data uint8_t; end of TSL1. */
-
-		/*  enab TSL1 slot list so that it executes all the time. */
-		WR7146(P_ACON1, ACON1_ADCSTART);
-
-		/*  Initialize RPS registers used for ADC. */
-
-		/* Physical start of RPS program. */
-		WR7146(P_RPSADDR1, (uint32_t) devpriv->RPSBuf.PhysicalBase);
-
-		WR7146(P_RPSPAGE1, 0);
-		/*  RPS program performs no explicit mem writes. */
-		WR7146(P_RPS1_TOUT, 0);	/*  Disable RPS timeouts. */
-
-		/* SAA7146 BUG WORKAROUND.  Initialize SAA7146 ADC interface
-		 * to a known state by invoking ADCs until FB BUFFER 1
-		 * register shows that it is correctly receiving ADC data.
-		 * This is necessary because the SAA7146 ADC interface does
-		 * not start up in a defined state after a PCI reset.
-		 */
-
-/*     PollList = EOPL;		// Create a simple polling */
-/*				// list for analog input */
-/*				// channel 0. */
-/*     ResetADC( dev, &PollList ); */
-
-/*     s626_ai_rinsn(dev,dev->subdevices,NULL,data); //( &AdcData ); // */
-/*							//Get initial ADC */
-/*							//value. */
-
-/*     StartVal = data[0]; */
-
-/*     // VERSION 2.01 CHANGE: TIMEOUT ADDED TO PREVENT HANGED EXECUTION. */
-/*     // Invoke ADCs until the new ADC value differs from the initial */
-/*     // value or a timeout occurs.  The timeout protects against the */
-/*     // possibility that the driver is restarting and the ADC data is a */
-/*     // fixed value resulting from the applied ADC analog input being */
-/*     // unusually quiet or at the rail. */
-
-/*     for ( index = 0; index < 500; index++ ) */
-/*       { */
-/*	s626_ai_rinsn(dev,dev->subdevices,NULL,data); */
-/*	AdcData = data[0];	//ReadADC(  &AdcData ); */
-/*	if ( AdcData != StartVal ) */
-/*		break; */
-/*       } */
-
-		/*  end initADC */
-
-		/*  init the DAC interface */
-
-		/* Init Audio2's output DMAC attributes: burst length = 1
-		 * DWORD,  threshold = 1 DWORD.
-		 */
-		WR7146(P_PCI_BT_A, 0);
-
-		/* Init Audio2's output DMA physical addresses.  The protection
-		 * address is set to 1 DWORD past the base address so that a
-		 * single DWORD will be transferred each time a DMA transfer is
-		 * enabled. */
-
-		pPhysBuf =
-		    devpriv->ANABuf.PhysicalBase +
-		    (DAC_WDMABUF_OS * sizeof(uint32_t));
-
-		WR7146(P_BASEA2_OUT, (uint32_t) pPhysBuf);	/*  Buffer base adrs. */
-		WR7146(P_PROTA2_OUT, (uint32_t) (pPhysBuf + sizeof(uint32_t)));	/*  Protection address. */
-
-		/* Cache Audio2's output DMA buffer logical address.  This is
-		 * where DAC data is buffered for A2 output DMA transfers. */
-		devpriv->pDacWBuf =
-		    (uint32_t *) devpriv->ANABuf.LogicalBase + DAC_WDMABUF_OS;
-
-		/* Audio2's output channels does not use paging.  The protection
-		 * violation handling bit is set so that the DMAC will
-		 * automatically halt and its PCI address pointer will be reset
-		 * when the protection address is reached. */
-
-		WR7146(P_PAGEA2_OUT, 8);
-
-		/* Initialize time slot list 2 (TSL2), which is used to control
-		 * the clock generation for and serialization of data to be sent
-		 * to the DAC devices.  Slot 0 is a NOP that is used to trap TSL
-		 * execution; this permits other slots to be safely modified
-		 * without first turning off the TSL sequencer (which is
-		 * apparently impossible to do).  Also, SD3 (which is driven by a
-		 * pull-up resistor) is shifted in and stored to the MSB of
-		 * FB_BUFFER2 to be used as evidence that the slot sequence has
-		 * not yet finished executing.
-		 */
-
-		SETVECT(0, XSD2 | RSD3 | SIB_A2 | EOS);
-		/*  Slot 0: Trap TSL execution, shift 0xFF into FB_BUFFER2. */
-
-		/* Initialize slot 1, which is constant.  Slot 1 causes a
-		 * DWORD to be transferred from audio channel 2's output FIFO
-		 * to the FIFO's output buffer so that it can be serialized
-		 * and sent to the DAC during subsequent slots.  All remaining
-		 * slots are dynamically populated as required by the target
-		 * DAC device.
-		 */
-		SETVECT(1, LF_A2);
-		/*  Slot 1: Fetch DWORD from Audio2's output FIFO. */
-
-		/*  Start DAC's audio interface (TSL2) running. */
-		WR7146(P_ACON1, ACON1_DACSTART);
-
-		/* end init DAC interface */
-
-		/* Init Trim DACs to calibrated values.  Do it twice because the
-		 * SAA7146 audio channel does not always reset properly and
-		 * sometimes causes the first few TrimDAC writes to malfunction.
-		 */
-
-		LoadTrimDACs(dev);
-		LoadTrimDACs(dev);	/*  Insurance. */
-
-		/* Manually init all gate array hardware in case this is a soft
-		 * reset (we have no way of determining whether this is a warm
-		 * or cold start).  This is necessary because the gate array will
-		 * reset only in response to a PCI hard reset; there is no soft
-		 * reset function. */
-
-		/* Init all DAC outputs to 0V and init all DAC setpoint and
-		 * polarity images.
-		 */
-		for (chan = 0; chan < S626_DAC_CHANNELS; chan++)
-			SetDAC(dev, chan, 0);
-
-		/* Init image of WRMISC2 Battery Charger Enabled control bit.
-		 * This image is used when the state of the charger control bit,
-		 * which has no direct hardware readback mechanism, is queried.
-		 */
-		devpriv->ChargeEnabled = 0;
-
-		/* Init image of watchdog timer interval in WRMISC2.  This image
-		 * maintains the value of the control bits of MISC2 are
-		 * continuously reset to zero as long as the WD timer is disabled.
-		 */
-		devpriv->WDInterval = 0;
-
-		/* Init Counter Interrupt enab mask for RDMISC2.  This mask is
-		 * applied against MISC2 when testing to determine which timer
-		 * events are requesting interrupt service.
-		 */
-		devpriv->CounterIntEnabs = 0;
-
-		/*  Init counters. */
-		CountersInit(dev);
-
-		/* Without modifying the state of the Battery Backup enab, disable
-		 * the watchdog timer, set DIO channels 0-5 to operate in the
-		 * standard DIO (vs. counter overflow) mode, disable the battery
-		 * charger, and reset the watchdog interval selector to zero.
-		 */
-		WriteMISC2(dev, (uint16_t) (DEBIread(dev,
-						     LP_RDMISC2) &
-					    MISC2_BATT_ENABLE));
-
-		/*  Initialize the digital I/O subsystem. */
-		s626_dio_init(dev);
-
-		/* enable interrupt test */
-		/*  writel(IRQ_GPIO3 | IRQ_RPS1,devpriv->base_addr+P_IER); */
-	}
-
-	return 1;
+	return 0;
 }
 
 static void s626_detach(struct comedi_device *dev)
 {
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+
 	if (devpriv) {
 		/* stop ai_command */
 		devpriv->ai_cmd_running = 0;
@@ -2967,18 +2819,17 @@ static void s626_detach(struct comedi_device *dev)
 			free_irq(dev->irq, dev);
 		if (devpriv->base_addr)
 			iounmap(devpriv->base_addr);
-		if (devpriv->pdev) {
-			if (devpriv->got_regions)
-				comedi_pci_disable(devpriv->pdev);
-			pci_dev_put(devpriv->pdev);
-		}
+	}
+	if (pcidev) {
+		if (dev->iobase)
+			comedi_pci_disable(pcidev);
 	}
 }
 
 static struct comedi_driver s626_driver = {
 	.driver_name	= "s626",
 	.module		= THIS_MODULE,
-	.attach		= s626_attach,
+	.attach_pci	= s626_attach_pci,
 	.detach		= s626_detach,
 };
 
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 8a8f196cf15..ff4b3a5e4e5 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -73,7 +73,6 @@
 #include <linux/slab.h>
 
 #define S626_SIZE 0x0200
-#define SIZEOF_ADDRESS_SPACE		0x0200
 #define DMABUF_SIZE			4096	/*  4k pages */
 
 #define S626_ADC_CHANNELS       16
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index c18314be8c8..5bf84cfbdce 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -588,7 +588,9 @@ static int serial_2002_open(struct comedi_device *dev)
 				kfree(s->range_table_list);
 				s->range_table = NULL;
 				s->range_table_list = NULL;
-				if (range) {
+				if (kind == 1 || kind == 2) {
+					s->range_table = &range_digital;
+				} else if (range) {
 					s->range_table_list = range_table_list =
 					    kmalloc(sizeof
 						    (struct
@@ -798,7 +800,7 @@ static int serial2002_attach(struct comedi_device *dev,
 		return ret;
 
 	/* digital input subdevice */
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = 0;
@@ -807,7 +809,7 @@ static int serial2002_attach(struct comedi_device *dev,
 	s->insn_read = &serial2002_di_rinsn;
 
 	/* digital output subdevice */
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITEABLE;
 	s->n_chan = 0;
@@ -816,7 +818,7 @@ static int serial2002_attach(struct comedi_device *dev,
 	s->insn_write = &serial2002_do_winsn;
 
 	/* analog input subdevice */
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
 	s->n_chan = 0;
@@ -825,7 +827,7 @@ static int serial2002_attach(struct comedi_device *dev,
 	s->insn_read = &serial2002_ai_rinsn;
 
 	/* analog output subdevice */
-	s = dev->subdevices + 3;
+	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITEABLE;
 	s->n_chan = 0;
@@ -835,7 +837,7 @@ static int serial2002_attach(struct comedi_device *dev,
 	s->insn_read = &serial2002_ao_rinsn;
 
 	/* encoder input subdevice */
-	s = dev->subdevices + 4;
+	s = &dev->subdevices[4];
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE | SDF_LSAMPL;
 	s->n_chan = 0;
diff --git a/drivers/staging/comedi/drivers/skel.c b/drivers/staging/comedi/drivers/skel.c
index 9a68eebefca..b70cdf300bb 100644
--- a/drivers/staging/comedi/drivers/skel.c
+++ b/drivers/staging/comedi/drivers/skel.c
@@ -76,6 +76,8 @@ Configuration Options:
 
 #include <linux/pci.h>		/* for PCI devices */
 
+#include "comedi_fc.h"
+
 /* Imaginary registers for the imaginary board */
 
 #define SKEL_SIZE 0
@@ -238,7 +240,7 @@ static int skel_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* dev->read_subdev=s; */
 	/* analog input subdevice */
 	s->type = COMEDI_SUBD_AI;
@@ -256,7 +258,7 @@ static int skel_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 */
 	s->do_cmdtest = skel_ai_cmdtest;
 
-	s = dev->subdevices + 1;
+	s = &dev->subdevices[1];
 	/* analog output subdevice */
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITABLE;
@@ -266,7 +268,7 @@ static int skel_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = skel_ao_winsn;
 	s->insn_read = skel_ao_rinsn;
 
-	s = dev->subdevices + 2;
+	s = &dev->subdevices[2];
 	/* digital i/o subdevice */
 	if (thisboard->have_dio) {
 		s->type = COMEDI_SUBD_DIO;
@@ -349,60 +351,40 @@ static int skel_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	return n;
 }
 
+/*
+ * cmdtest tests a particular command to see if it is valid.
+ * Using the cmdtest ioctl, a user can create a valid cmd
+ * and then have it executes by the cmd ioctl.
+ *
+ * cmdtest returns 1,2,3,4 or 0, depending on which tests
+ * the command passes.
+ */
 static int skel_ai_cmdtest(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
+			   struct comedi_subdevice *s,
+			   struct comedi_cmd *cmd)
 {
 	int err = 0;
 	int tmp;
 
-	/* cmdtest tests a particular command to see if it is valid.
-	 * Using the cmdtest ioctl, a user can create a valid cmd
-	 * and then have it executes by the cmd ioctl.
-	 *
-	 * cmdtest returns 1,2,3,4 or 0, depending on which tests
-	 * the command passes. */
-
-	/* step 1: make sure trigger sources are trivially valid */
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/* step 2: make sure trigger sources are unique and mutually compatible
-     */
+	/* Step 2a : make sure trigger sources are unique */
 
-	/* note that mutual compatibility is not an issue here */
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c
index 84b9f2a4280..ae3aa1c5cae 100644
--- a/drivers/staging/comedi/drivers/ssv_dnp.c
+++ b/drivers/staging/comedi/drivers/ssv_dnp.c
@@ -177,15 +177,13 @@ static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	struct comedi_subdevice *s;
 	int ret;
 
-	printk(KERN_INFO "comedi%d: dnp: ", dev->minor);
-
 	dev->board_name = board->name;
 
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
 		return ret;
 
-	s = dev->subdevices + 0;
+	s = &dev->subdevices[0];
 	/* digital i/o subdevice                                             */
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@@ -195,8 +193,6 @@ static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_bits = dnp_dio_insn_bits;
 	s->insn_config = dnp_dio_insn_config;
 
-	printk("attached\n");
-
 	/* We use the I/O ports 0x22,0x23 and 0xa3-0xa9, which are always
 	 * allocated for the primary 8259, so we don't need to allocate them
 	 * ourselves. */
@@ -209,6 +205,7 @@ static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	outb(PCMR, CSCIR);
 	outb((inb(CSCDR) & 0xAA), CSCDR);
 
+	dev_info(dev->class_dev, "%s: attached\n", dev->board_name);
 	return 1;
 }
 
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index 848c7ec0697..b536bba7435 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -98,10 +98,13 @@ sampling rate. If you sample two channels you get 4kHz and so on.
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
+
 /* timeout for the USB-transfer in ms*/
 #define BULK_TIMEOUT 1000
 
 /* constants for "firmware" upload and download */
+#define FIRMWARE "usbdux_firmware.bin"
 #define USBDUXSUB_FIRMWARE 0xA0
 #define VENDOR_DIR_IN  0xC0
 #define VENDOR_DIR_OUT 0x40
@@ -403,7 +406,7 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb)
 	/* the private structure of the subdevice is struct usbduxsub */
 	this_usbduxsub = this_comedidev->private;
 	/* subdevice which is the AD converter */
-	s = this_comedidev->subdevices + SUBDEV_AD;
+	s = &this_comedidev->subdevices[SUBDEV_AD];
 
 	/* first we test if something unusual has just happened */
 	switch (urb->status) {
@@ -603,7 +606,7 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb)
 	/* the private structure of the subdevice is struct usbduxsub */
 	this_usbduxsub = this_comedidev->private;
 
-	s = this_comedidev->subdevices + SUBDEV_DA;
+	s = &this_comedidev->subdevices[SUBDEV_DA];
 
 	switch (urb->status) {
 	case 0:
@@ -928,9 +931,9 @@ static int usbduxsub_submit_OutURBs(struct usbduxsub *usbduxsub)
 static int usbdux_ai_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-	int err = 0, tmp, i;
-	unsigned int tmpTimer;
 	struct usbduxsub *this_usbduxsub = dev->private;
+	int err = 0, i;
+	unsigned int tmpTimer;
 
 	if (!(this_usbduxsub->probed))
 		return -ENODEV;
@@ -938,51 +941,23 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 	dev_dbg(&this_usbduxsub->interface->dev,
 		"comedi%d: usbdux_ai_cmdtest\n", dev->minor);
 
-	/* make sure triggers are valid */
-	/* Only immediate triggers are allowed */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	/* trigger should happen timed */
-	tmp = cmd->scan_begin_src;
-	/* start a new _scan_ with a timer */
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	/* scanning is continuous */
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	/* issue a trigger when scan is finished and start a new scan */
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	/* trigger at the end of count events or not, stop condition or not */
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually compatible
-	 * note that mutual compatibility is not an issue here
-	 */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_TIMER)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1487,8 +1462,9 @@ static int usbdux_ao_inttrig(struct comedi_device *dev,
 static int usbdux_ao_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-	int err = 0, tmp;
 	struct usbduxsub *this_usbduxsub = dev->private;
+	int err = 0;
+	unsigned int flags;
 
 	if (!this_usbduxsub)
 		return -EFAULT;
@@ -1499,69 +1475,46 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 	dev_dbg(&this_usbduxsub->interface->dev,
 		"comedi%d: usbdux_ao_cmdtest\n", dev->minor);
 
-	/* make sure triggers are valid */
-	/* Only immediate triggers are allowed */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
+
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
 
-	/* trigger should happen timed */
-	tmp = cmd->scan_begin_src;
-	/* just now we scan also in the high speed mode every frame */
-	/* this is due to ehci driver limitations */
 	if (0) {		/* (this_usbduxsub->high_speed) */
-		/* start immediately a new scan */
 		/* the sampling rate is set by the coversion rate */
-		cmd->scan_begin_src &= TRIG_FOLLOW;
+		flags = TRIG_FOLLOW;
 	} else {
 		/* start a new scan (output at once) with a timer */
-		cmd->scan_begin_src &= TRIG_TIMER;
+		flags = TRIG_TIMER;
 	}
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags);
 
-	/* scanning is continuous */
-	tmp = cmd->convert_src;
-	/* we always output at 1kHz just now all channels at once */
 	if (0) {		/* (this_usbduxsub->high_speed) */
 		/*
-		 * in usb-2.0 only one conversion it transmitted but with 8kHz/n
+		 * in usb-2.0 only one conversion it transmitted
+		 * but with 8kHz/n
 		 */
-		cmd->convert_src &= TRIG_TIMER;
+		flags = TRIG_TIMER;
 	} else {
-		/* all conversion events happen simultaneously with a rate of
-		 * 1kHz/n */
-		cmd->convert_src &= TRIG_NOW;
+		/*
+		 * all conversion events happen simultaneously with
+		 * a rate of 1kHz/n
+		 */
+		flags = TRIG_NOW;
 	}
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	/* issue a trigger when scan is finished and start a new scan */
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->convert_src, flags);
 
-	/* trigger at the end of count events or not, stop condition or not */
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually compatible
-	 * note that mutual compatibility is not an issue here
-	 */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_TIMER)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1946,7 +1899,7 @@ static void usbduxsub_pwm_irq(struct urb *urb)
 	/* the private structure of the subdevice is struct usbduxsub */
 	this_usbduxsub = this_comedidev->private;
 
-	s = this_comedidev->subdevices + SUBDEV_DA;
+	s = &this_comedidev->subdevices[SUBDEV_DA];
 
 	switch (urb->status) {
 	case 0:
@@ -2292,10 +2245,8 @@ static void tidy_up(struct usbduxsub *usbduxsub_tmp)
 	usbduxsub_tmp->pwm_cmd_running = 0;
 }
 
-/* common part of attach and attach_usb */
 static int usbdux_attach_common(struct comedi_device *dev,
-				struct usbduxsub *udev,
-				void *aux_data, int aux_len)
+				struct usbduxsub *udev)
 {
 	int ret;
 	struct comedi_subdevice *s = NULL;
@@ -2305,10 +2256,6 @@ static int usbdux_attach_common(struct comedi_device *dev,
 	/* pointer back to the corresponding comedi device */
 	udev->comedidev = dev;
 
-	/* trying to upload the firmware into the chip */
-	if (aux_data)
-		firmwareUpload(udev, aux_data, aux_len);
-
 	dev->board_name = "usbdux";
 
 	/* set number of subdevices */
@@ -2330,7 +2277,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
 	dev->private = udev;
 
 	/* the first subdevice is the A/D converter */
-	s = dev->subdevices + SUBDEV_AD;
+	s = &dev->subdevices[SUBDEV_AD];
 	/* the URBs get the comedi subdevice */
 	/* which is responsible for reading */
 	/* this is the subdevice which reads data */
@@ -2357,7 +2304,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
 	s->range_table = (&range_usbdux_ai_range);
 
 	/* analog out */
-	s = dev->subdevices + SUBDEV_DA;
+	s = &dev->subdevices[SUBDEV_DA];
 	/* analog out */
 	s->type = COMEDI_SUBD_AO;
 	/* backward pointer */
@@ -2383,7 +2330,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
 	s->insn_write = usbdux_ao_insn_write;
 
 	/* digital I/O */
-	s = dev->subdevices + SUBDEV_DIO;
+	s = &dev->subdevices[SUBDEV_DIO];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 8;
@@ -2395,7 +2342,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
 	s->private = NULL;
 
 	/* counter */
-	s = dev->subdevices + SUBDEV_COUNTER;
+	s = &dev->subdevices[SUBDEV_COUNTER];
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
 	s->n_chan = 4;
@@ -2406,7 +2353,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
 
 	if (udev->high_speed) {
 		/* timer / pwm */
-		s = dev->subdevices + SUBDEV_PWM;
+		s = &dev->subdevices[SUBDEV_PWM];
 		s->type = COMEDI_SUBD_PWM;
 		s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE;
 		s->n_chan = 8;
@@ -2428,48 +2375,6 @@ static int usbdux_attach_common(struct comedi_device *dev,
 	return 0;
 }
 
-/* is called when comedi-config is called */
-static int usbdux_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	int ret;
-	int index;
-	int i;
-	void *aux_data;
-	int aux_len;
-
-	dev->private = NULL;
-
-	aux_data = comedi_aux_data(it->options, 0);
-	aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
-	if (aux_data == NULL)
-		aux_len = 0;
-	else if (aux_len == 0)
-		aux_data = NULL;
-
-	down(&start_stop_sem);
-	/* find a valid device which has been detected by the probe function of
-	 * the usb */
-	index = -1;
-	for (i = 0; i < NUMUSBDUX; i++) {
-		if ((usbduxsub[i].probed) && (!usbduxsub[i].attached)) {
-			index = i;
-			break;
-		}
-	}
-
-	if (index < 0) {
-		printk(KERN_ERR
-		       "comedi%d: usbdux: error: attach failed, no usbdux devs connected to the usb bus.\n",
-		       dev->minor);
-		ret = -ENODEV;
-	} else
-		ret = usbdux_attach_common(dev, &usbduxsub[index],
-					   aux_data, aux_len);
-	up(&start_stop_sem);
-	return ret;
-}
-
-/* is called from comedi_usb_auto_config() */
 static int usbdux_attach_usb(struct comedi_device *dev,
 			     struct usb_interface *uinterf)
 {
@@ -2491,7 +2396,7 @@ static int usbdux_attach_usb(struct comedi_device *dev,
 		       dev->minor);
 		ret = -ENODEV;
 	} else
-		ret = usbdux_attach_common(dev, this_usbduxsub, NULL, 0);
+		ret = usbdux_attach_common(dev, this_usbduxsub);
 	up(&start_stop_sem);
 	return ret;
 }
@@ -2512,9 +2417,8 @@ static void usbdux_detach(struct comedi_device *dev)
 static struct comedi_driver usbdux_driver = {
 	.driver_name	= "usbdux",
 	.module		= THIS_MODULE,
-	.attach		= usbdux_attach,
-	.detach		= usbdux_detach,
 	.attach_usb	= usbdux_attach_usb,
+	.detach		= usbdux_detach,
 };
 
 static void usbdux_firmware_request_complete_handler(const struct firmware *fw,
@@ -2791,7 +2695,7 @@ static int usbdux_usb_probe(struct usb_interface *uinterf,
 
 	ret = request_firmware_nowait(THIS_MODULE,
 				      FW_ACTION_HOTPLUG,
-				      "usbdux_firmware.bin",
+				      FIRMWARE,
 				      &udev->dev,
 				      GFP_KERNEL,
 				      usbduxsub + index,
@@ -2850,3 +2754,4 @@ module_comedi_usb_driver(usbdux_driver, usbdux_usb_driver);
 MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com");
 MODULE_DESCRIPTION("Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com");
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c
index d9911588c10..1154a7e2895 100644
--- a/drivers/staging/comedi/drivers/usbduxfast.c
+++ b/drivers/staging/comedi/drivers/usbduxfast.c
@@ -57,6 +57,7 @@
 /*
  * constants for "firmware" upload and download
  */
+#define FIRMWARE		"usbduxfast_firmware.bin"
 #define USBDUXFASTSUB_FIRMWARE	0xA0
 #define VENDOR_DIR_IN		0xC0
 #define VENDOR_DIR_OUT		0x40
@@ -345,7 +346,7 @@ static void usbduxfastsub_ai_Irq(struct urb *urb)
 		return;
 	}
 	/* subdevice which is the AD converter */
-	s = this_comedidev->subdevices + SUBDEV_AD;
+	s = &this_comedidev->subdevices[SUBDEV_AD];
 
 	/* first we test if something unusual has just happened */
 	switch (urb->status) {
@@ -548,10 +549,10 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_cmd *cmd)
 {
-	int err = 0, stop_mask = 0;
+	struct usbduxfastsub_s *udfs = dev->private;
+	int err = 0;
 	long int steps, tmp;
 	int minSamplPer;
-	struct usbduxfastsub_s *udfs = dev->private;
 
 	if (!udfs->probed)
 		return -ENODEV;
@@ -562,57 +563,31 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
 	       "scan_begin_arg=%u\n",
 	       dev->minor, cmd->convert_arg, cmd->scan_begin_arg);
 #endif
-	/* step 1: make sure trigger sources are trivially valid */
-
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_EXT | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	tmp = cmd->scan_begin_src;
-	cmd->scan_begin_src &= TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_TIMER | TRIG_EXT;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	tmp = cmd->stop_src;
-	stop_mask = TRIG_COUNT | TRIG_NONE;
-	cmd->stop_src &= stop_mask;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src,
+					TRIG_NOW | TRIG_EXT | TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually compatible
-	 */
+	/* Step 2a : make sure trigger sources are unique */
 
-	if (cmd->start_src != TRIG_NOW &&
-	    cmd->start_src != TRIG_EXT && cmd->start_src != TRIG_INT)
-		err++;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT)
-		err++;
-	if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT &&
-	    cmd->stop_src != TRIG_EXT && cmd->stop_src != TRIG_NONE)
-		err++;
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	/* can't have external stop and start triggers at once */
 	if (cmd->start_src == TRIG_EXT && cmd->stop_src == TRIG_EXT)
-		err++;
+		err |= -EINVAL;
 
 	if (err)
 		return 2;
@@ -1429,10 +1404,8 @@ static void tidy_up(struct usbduxfastsub_s *udfs)
 	udfs->ai_cmd_running = 0;
 }
 
-/* common part of attach and attach_usb */
 static int usbduxfast_attach_common(struct comedi_device *dev,
-				    struct usbduxfastsub_s *udfs,
-				    void *aux_data, int aux_len)
+				    struct usbduxfastsub_s *udfs)
 {
 	int ret;
 	struct comedi_subdevice *s;
@@ -1440,9 +1413,6 @@ static int usbduxfast_attach_common(struct comedi_device *dev,
 	down(&udfs->sem);
 	/* pointer back to the corresponding comedi device */
 	udfs->comedidev = dev;
-	/* trying to upload the firmware into the chip */
-	if (aux_data)
-		firmwareUpload(udfs, aux_data, aux_len);
 	dev->board_name = "usbduxfast";
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret) {
@@ -1452,7 +1422,7 @@ static int usbduxfast_attach_common(struct comedi_device *dev,
 	/* private structure is also simply the usb-structure */
 	dev->private = udfs;
 	/* the first subdevice is the A/D converter */
-	s = dev->subdevices + SUBDEV_AD;
+	s = &dev->subdevices[SUBDEV_AD];
 	/*
 	 * the URBs get the comedi subdevice which is responsible for reading
 	 * this is the subdevice which reads data
@@ -1484,48 +1454,6 @@ static int usbduxfast_attach_common(struct comedi_device *dev,
 	return 0;
 }
 
-/* is called for COMEDI_DEVCONFIG ioctl (when comedi_config is run) */
-static int usbduxfast_attach(struct comedi_device *dev,
-			     struct comedi_devconfig *it)
-{
-	int ret;
-	int index;
-	int i;
-	void *aux_data;
-	int aux_len;
-
-	dev->private = NULL;
-
-	aux_data = comedi_aux_data(it->options, 0);
-	aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
-	if (aux_data == NULL)
-		aux_len = 0;
-	else if (aux_len == 0)
-		aux_data = NULL;
-	down(&start_stop_sem);
-	/*
-	 * find a valid device which has been detected by the
-	 * probe function of the usb
-	 */
-	index = -1;
-	for (i = 0; i < NUMUSBDUXFAST; i++) {
-		if (usbduxfastsub[i].probed && !usbduxfastsub[i].attached) {
-			index = i;
-			break;
-		}
-	}
-	if (index < 0) {
-		dev_err(dev->class_dev,
-			"usbduxfast: error: attach failed, no usbduxfast devs connected to the usb bus.\n");
-		ret = -ENODEV;
-	} else
-		ret = usbduxfast_attach_common(dev, &usbduxfastsub[index],
-					       aux_data, aux_len);
-	up(&start_stop_sem);
-	return ret;
-}
-
-/* is called from comedi_usb_auto_config() */
 static int usbduxfast_attach_usb(struct comedi_device *dev,
 				 struct usb_interface *uinterf)
 {
@@ -1544,7 +1472,7 @@ static int usbduxfast_attach_usb(struct comedi_device *dev,
 		       "usbduxfast: error: attach_usb failed, already attached\n");
 		ret = -ENODEV;
 	} else
-		ret = usbduxfast_attach_common(dev, udfs, NULL, 0);
+		ret = usbduxfast_attach_common(dev, udfs);
 	up(&start_stop_sem);
 	return ret;
 }
@@ -1567,9 +1495,8 @@ static void usbduxfast_detach(struct comedi_device *dev)
 static struct comedi_driver usbduxfast_driver = {
 	.driver_name	= "usbduxfast",
 	.module		= THIS_MODULE,
-	.attach		= usbduxfast_attach,
-	.detach		= usbduxfast_detach,
 	.attach_usb	= usbduxfast_attach_usb,
+	.detach		= usbduxfast_detach,
 };
 
 static void usbduxfast_firmware_request_complete_handler(const struct firmware
@@ -1706,7 +1633,7 @@ static int usbduxfast_usb_probe(struct usb_interface *uinterf,
 
 	ret = request_firmware_nowait(THIS_MODULE,
 				      FW_ACTION_HOTPLUG,
-				      "usbduxfast_firmware.bin",
+				      FIRMWARE,
 				      &udev->dev,
 				      GFP_KERNEL,
 				      usbduxfastsub + index,
@@ -1774,3 +1701,4 @@ module_comedi_usb_driver(usbduxfast_driver, usbduxfast_usb_driver);
 MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com");
 MODULE_DESCRIPTION("USB-DUXfast, BerndPorr@f2s.com");
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index 543e604791e..b1694121f84 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -63,6 +63,7 @@ Status: testing
 #define BULK_TIMEOUT 1000
 
 /* constants for "firmware" upload and download */
+#define FIRMWARE "usbduxsigma_firmware.bin"
 #define USBDUXSUB_FIRMWARE 0xA0
 #define VENDOR_DIR_IN  0xC0
 #define VENDOR_DIR_OUT 0x40
@@ -355,7 +356,7 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb)
 	/* the private structure of the subdevice is struct usbduxsub */
 	this_usbduxsub = this_comedidev->private;
 	/* subdevice which is the AD converter */
-	s = this_comedidev->subdevices + SUBDEV_AD;
+	s = &this_comedidev->subdevices[SUBDEV_AD];
 
 	/* first we test if something unusual has just happened */
 	switch (urb->status) {
@@ -557,7 +558,7 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb)
 	/* the private structure of the subdevice is struct usbduxsub */
 	this_usbduxsub = this_comedidev->private;
 
-	s = this_comedidev->subdevices + SUBDEV_DA;
+	s = &this_comedidev->subdevices[SUBDEV_DA];
 
 	switch (urb->status) {
 	case 0:
@@ -896,9 +897,9 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s,
 			     struct comedi_cmd *cmd)
 {
-	int err = 0, tmp, i;
-	unsigned int tmpTimer;
 	struct usbduxsub *this_usbduxsub = dev->private;
+	int err = 0, i;
+	unsigned int tmpTimer;
 
 	if (!(this_usbduxsub->probed))
 		return -ENODEV;
@@ -906,51 +907,23 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 	dev_dbg(&this_usbduxsub->interface->dev,
 		"comedi%d: usbdux_ai_cmdtest\n", dev->minor);
 
-	/* make sure triggers are valid */
-	/* Only immediate triggers are allowed */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
-
-	/* trigger should happen timed */
-	tmp = cmd->scan_begin_src;
-	/* start a new _scan_ with a timer */
-	cmd->scan_begin_src &= TRIG_TIMER;
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	/* scanning is continuous */
-	tmp = cmd->convert_src;
-	cmd->convert_src &= TRIG_NOW;
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
 
-	/* issue a trigger when scan is finished and start a new scan */
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	/* trigger at the end of count events or not, stop condition or not */
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources are unique and mutually compatible
-	 * note that mutual compatibility is not an issue here
-	 */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_TIMER)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1557,8 +1530,9 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s,
 			     struct comedi_cmd *cmd)
 {
-	int err = 0, tmp;
 	struct usbduxsub *this_usbduxsub = dev->private;
+	int err = 0;
+	unsigned int flags;
 
 	if (!this_usbduxsub)
 		return -EFAULT;
@@ -1569,63 +1543,35 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 	dev_dbg(&this_usbduxsub->interface->dev,
 		"comedi%d: usbdux_ao_cmdtest\n", dev->minor);
 
-	/* make sure triggers are valid */
-	/* Only immediate triggers are allowed */
-	tmp = cmd->start_src;
-	cmd->start_src &= TRIG_NOW | TRIG_INT;
-	if (!cmd->start_src || tmp != cmd->start_src)
-		err++;
+	/* Step 1 : check if triggers are trivially valid */
+
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
 
-	/* trigger should happen timed */
-	tmp = cmd->scan_begin_src;
-	/* just now we scan also in the high speed mode every frame */
-	/* this is due to ehci driver limitations */
 	if (0) {		/* (this_usbduxsub->high_speed) */
-		/* start immediately a new scan */
-		/* the sampling rate is set by the coversion rate */
-		cmd->scan_begin_src &= TRIG_FOLLOW;
+		/*
+		 * start immediately a new scan
+		 * the sampling rate is set by the coversion rate
+		 */
+		flags = TRIG_FOLLOW;
 	} else {
 		/* start a new scan (output at once) with a timer */
-		cmd->scan_begin_src &= TRIG_TIMER;
+		flags = TRIG_TIMER;
 	}
-	if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
-		err++;
-
-	/* scanning is continuous */
-	tmp = cmd->convert_src;
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags);
 
-	/* all conversion events happen simultaneously */
-	cmd->convert_src &= TRIG_NOW;
-
-	if (!cmd->convert_src || tmp != cmd->convert_src)
-		err++;
-
-	/* issue a trigger when scan is finished and start a new scan */
-	tmp = cmd->scan_end_src;
-	cmd->scan_end_src &= TRIG_COUNT;
-	if (!cmd->scan_end_src || tmp != cmd->scan_end_src)
-		err++;
-
-	/* trigger at the end of count events or not, stop condition or not */
-	tmp = cmd->stop_src;
-	cmd->stop_src &= TRIG_COUNT | TRIG_NONE;
-	if (!cmd->stop_src || tmp != cmd->stop_src)
-		err++;
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
-	/*
-	 * step 2: make sure trigger sources
-	 * are unique and mutually compatible
-	 * note that mutual compatibility is not an issue here
-	 */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->scan_begin_src != TRIG_EXT &&
-	    cmd->scan_begin_src != TRIG_TIMER)
-		err++;
-	if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE)
-		err++;
+	/* Step 2a : make sure trigger sources are unique */
+
+	err |= cfc_check_trigger_is_unique(cmd->start_src);
+	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+
+	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
@@ -1949,7 +1895,7 @@ static void usbduxsub_pwm_irq(struct urb *urb)
 	/* the private structure of the subdevice is struct usbduxsub */
 	this_usbduxsub = this_comedidev->private;
 
-	s = this_comedidev->subdevices + SUBDEV_DA;
+	s = &this_comedidev->subdevices[SUBDEV_DA];
 
 	switch (urb->status) {
 	case 0:
@@ -2300,10 +2246,8 @@ static void tidy_up(struct usbduxsub *usbduxsub_tmp)
 	usbduxsub_tmp->pwm_cmd_running = 0;
 }
 
-/* common part of attach and attach_usb */
 static int usbduxsigma_attach_common(struct comedi_device *dev,
-				     struct usbduxsub *uds,
-				     void *aux_data, int aux_len)
+				     struct usbduxsub *uds)
 {
 	int ret;
 	struct comedi_subdevice *s;
@@ -2313,9 +2257,6 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
 	down(&uds->sem);
 	/* pointer back to the corresponding comedi device */
 	uds->comedidev = dev;
-	/* trying to upload the firmware into the FX2 */
-	if (aux_data)
-		firmwareUpload(uds, aux_data, aux_len);
 	dev->board_name = "usbduxsigma";
 	/* set number of subdevices */
 	if (uds->high_speed)
@@ -2330,7 +2271,7 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
 	/* private structure is also simply the usb-structure */
 	dev->private = uds;
 	/* the first subdevice is the A/D converter */
-	s = dev->subdevices + SUBDEV_AD;
+	s = &dev->subdevices[SUBDEV_AD];
 	/* the URBs get the comedi subdevice */
 	/* which is responsible for reading */
 	/* this is the subdevice which reads data */
@@ -2357,7 +2298,7 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
 	/* range table to convert to physical units */
 	s->range_table = (&range_usbdux_ai_range);
 	/* analog output subdevice */
-	s = dev->subdevices + SUBDEV_DA;
+	s = &dev->subdevices[SUBDEV_DA];
 	/* analog out */
 	s->type = COMEDI_SUBD_AO;
 	/* backward pointer */
@@ -2382,7 +2323,7 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
 	s->insn_read = usbdux_ao_insn_read;
 	s->insn_write = usbdux_ao_insn_write;
 	/* digital I/O subdevice */
-	s = dev->subdevices + SUBDEV_DIO;
+	s = &dev->subdevices[SUBDEV_DIO];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	/* 8 external and 16 internal channels */
@@ -2395,7 +2336,7 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
 	s->private = NULL;
 	if (uds->high_speed) {
 		/* timer / pwm subdevice */
-		s = dev->subdevices + SUBDEV_PWM;
+		s = &dev->subdevices[SUBDEV_PWM];
 		s->type = COMEDI_SUBD_PWM;
 		s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE;
 		s->n_chan = 8;
@@ -2418,47 +2359,6 @@ static int usbduxsigma_attach_common(struct comedi_device *dev,
 	return 0;
 }
 
-/* is called for COMEDI_DEVCONFIG ioctl (when comedi_config is run) */
-static int usbduxsigma_attach(struct comedi_device *dev,
-			      struct comedi_devconfig *it)
-{
-	int ret;
-	int index;
-	int i;
-	void *aux_data;
-	int aux_len;
-
-	dev->private = NULL;
-
-	aux_data = comedi_aux_data(it->options, 0);
-	aux_len = it->options[COMEDI_DEVCONF_AUX_DATA_LENGTH];
-	if (aux_data == NULL)
-		aux_len = 0;
-	else if (aux_len == 0)
-		aux_data = NULL;
-
-	down(&start_stop_sem);
-	/* find a valid device which has been detected by the probe function of
-	 * the usb */
-	index = -1;
-	for (i = 0; i < NUMUSBDUX; i++) {
-		if ((usbduxsub[i].probed) && (!usbduxsub[i].attached)) {
-			index = i;
-			break;
-		}
-	}
-	if (index < 0) {
-		dev_err(dev->class_dev,
-			"usbduxsigma: error: attach failed, dev not connected to the usb bus.\n");
-		ret = -ENODEV;
-	} else
-		ret = usbduxsigma_attach_common(dev, &usbduxsub[index],
-						aux_data, aux_len);
-	up(&start_stop_sem);
-	return ret;
-}
-
-/* is called from comedi_usb_auto_config() */
 static int usbduxsigma_attach_usb(struct comedi_device *dev,
 				  struct usb_interface *uinterf)
 {
@@ -2477,7 +2377,7 @@ static int usbduxsigma_attach_usb(struct comedi_device *dev,
 		       "usbduxsigma: error: attach_usb failed, already attached\n");
 		ret = -ENODEV;
 	} else
-		ret = usbduxsigma_attach_common(dev, uds, NULL, 0);
+		ret = usbduxsigma_attach_common(dev, uds);
 	up(&start_stop_sem);
 	return ret;
 }
@@ -2498,9 +2398,8 @@ static void usbduxsigma_detach(struct comedi_device *dev)
 static struct comedi_driver usbduxsigma_driver = {
 	.driver_name	= "usbduxsigma",
 	.module		= THIS_MODULE,
-	.attach		= usbduxsigma_attach,
-	.detach		= usbduxsigma_detach,
 	.attach_usb	= usbduxsigma_attach_usb,
+	.detach		= usbduxsigma_detach,
 };
 
 static void usbdux_firmware_request_complete_handler(const struct firmware *fw,
@@ -2780,7 +2679,7 @@ static int usbduxsigma_usb_probe(struct usb_interface *uinterf,
 
 	ret = request_firmware_nowait(THIS_MODULE,
 				      FW_ACTION_HOTPLUG,
-				      "usbduxsigma_firmware.bin",
+				      FIRMWARE,
 				      &udev->dev,
 				      GFP_KERNEL,
 				      usbduxsub + index,
@@ -2845,3 +2744,4 @@ module_comedi_usb_driver(usbduxsigma_driver, usbduxsigma_usb_driver);
 MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com");
 MODULE_DESCRIPTION("Stirling/ITL USB-DUX SIGMA -- Bernd.Porr@f2s.com");
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 94010fc0590..df277aa591b 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -546,6 +546,7 @@ static int vmk80xx_ai_rinsn(struct comedi_device *cdev,
 			reg[0] = VMK8055_AI2_REG;
 		break;
 	case VMK8061_MODEL:
+	default:
 		reg[0] = VMK8061_AI_REG1;
 		reg[1] = VMK8061_AI_REG2;
 		dev->usb_tx_buf[0] = VMK8061_CMD_RD_AI;
@@ -904,6 +905,7 @@ static int vmk80xx_cnt_rinsn(struct comedi_device *cdev,
 			reg[0] = VMK8055_CNT2_REG;
 		break;
 	case VMK8061_MODEL:
+	default:
 		reg[0] = VMK8061_CNT_REG;
 		reg[1] = VMK8061_CNT_REG;
 		dev->usb_tx_buf[0] = VMK8061_CMD_RD_CNT;
@@ -1119,7 +1121,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 		return ret;
 	}
 	/* Analog input subdevice */
-	s = cdev->subdevices + VMK80XX_SUBD_AI;
+	s = &cdev->subdevices[VMK80XX_SUBD_AI];
 	s->type = COMEDI_SUBD_AI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
 	s->n_chan = dev->board.ai_chans;
@@ -1127,7 +1129,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 	s->range_table = dev->board.range;
 	s->insn_read = vmk80xx_ai_rinsn;
 	/* Analog output subdevice */
-	s = cdev->subdevices + VMK80XX_SUBD_AO;
+	s = &cdev->subdevices[VMK80XX_SUBD_AO];
 	s->type = COMEDI_SUBD_AO;
 	s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
 	s->n_chan = dev->board.ao_chans;
@@ -1139,7 +1141,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 		s->insn_read = vmk80xx_ao_rinsn;
 	}
 	/* Digital input subdevice */
-	s = cdev->subdevices + VMK80XX_SUBD_DI;
+	s = &cdev->subdevices[VMK80XX_SUBD_DI];
 	s->type = COMEDI_SUBD_DI;
 	s->subdev_flags = SDF_READABLE | SDF_GROUND;
 	s->n_chan = dev->board.di_chans;
@@ -1147,7 +1149,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 	s->insn_read = vmk80xx_di_rinsn;
 	s->insn_bits = vmk80xx_di_bits;
 	/* Digital output subdevice */
-	s = cdev->subdevices + VMK80XX_SUBD_DO;
+	s = &cdev->subdevices[VMK80XX_SUBD_DO];
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
 	s->n_chan = dev->board.do_chans;
@@ -1159,7 +1161,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 		s->insn_read = vmk80xx_do_rinsn;
 	}
 	/* Counter subdevice */
-	s = cdev->subdevices + VMK80XX_SUBD_CNT;
+	s = &cdev->subdevices[VMK80XX_SUBD_CNT];
 	s->type = COMEDI_SUBD_COUNTER;
 	s->subdev_flags = SDF_READABLE;
 	s->n_chan = dev->board.cnt_chans;
@@ -1172,7 +1174,7 @@ static int vmk80xx_attach_common(struct comedi_device *cdev,
 	}
 	/* PWM subdevice */
 	if (dev->board.model == VMK8061_MODEL) {
-		s = cdev->subdevices + VMK80XX_SUBD_PWM;
+		s = &cdev->subdevices[VMK80XX_SUBD_PWM];
 		s->type = COMEDI_SUBD_PWM;
 		s->subdev_flags = SDF_READABLE | SDF_WRITEABLE;
 		s->n_chan = dev->board.pwm_chans;
diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index 0252b440885..3f20ea55b8d 100644
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -80,7 +80,9 @@ int comedi_close(struct comedi_device *d)
 }
 EXPORT_SYMBOL(comedi_close);
 
-static int comedi_do_insn(struct comedi_device *dev, struct comedi_insn *insn)
+static int comedi_do_insn(struct comedi_device *dev,
+			  struct comedi_insn *insn,
+			  unsigned int *data)
 {
 	struct comedi_subdevice *s;
 	int ret = 0;
@@ -90,7 +92,7 @@ static int comedi_do_insn(struct comedi_device *dev, struct comedi_insn *insn)
 		ret = -EINVAL;
 		goto error;
 	}
-	s = dev->subdevices + insn->subdev;
+	s = &dev->subdevices[insn->subdev];
 
 	if (s->type == COMEDI_SUBD_UNUSED) {
 		printk(KERN_ERR "%d not useable subdevice\n", insn->subdev);
@@ -115,11 +117,11 @@ static int comedi_do_insn(struct comedi_device *dev, struct comedi_insn *insn)
 
 	switch (insn->insn) {
 	case INSN_BITS:
-		ret = s->insn_bits(dev, s, insn, insn->data);
+		ret = s->insn_bits(dev, s, insn, data);
 		break;
 	case INSN_CONFIG:
 		/* XXX should check instruction length */
-		ret = s->insn_config(dev, s, insn, insn->data);
+		ret = s->insn_config(dev, s, insn, data);
 		break;
 	default:
 		ret = -EINVAL;
@@ -140,11 +142,10 @@ int comedi_dio_config(struct comedi_device *dev, unsigned int subdev,
 	memset(&insn, 0, sizeof(insn));
 	insn.insn = INSN_CONFIG;
 	insn.n = 1;
-	insn.data = &io;
 	insn.subdev = subdev;
 	insn.chanspec = CR_PACK(chan, 0, 0);
 
-	return comedi_do_insn(dev, &insn);
+	return comedi_do_insn(dev, &insn, &io);
 }
 EXPORT_SYMBOL(comedi_dio_config);
 
@@ -158,13 +159,12 @@ int comedi_dio_bitfield(struct comedi_device *dev, unsigned int subdev,
 	memset(&insn, 0, sizeof(insn));
 	insn.insn = INSN_BITS;
 	insn.n = 2;
-	insn.data = data;
 	insn.subdev = subdev;
 
 	data[0] = mask;
 	data[1] = *bits;
 
-	ret = comedi_do_insn(dev, &insn);
+	ret = comedi_do_insn(dev, &insn, data);
 
 	*bits = data[1];
 
@@ -175,11 +175,14 @@ EXPORT_SYMBOL(comedi_dio_bitfield);
 int comedi_find_subdevice_by_type(struct comedi_device *dev, int type,
 				  unsigned int subd)
 {
+	struct comedi_subdevice *s;
+
 	if (subd > dev->n_subdevices)
 		return -ENODEV;
 
 	for (; subd < dev->n_subdevices; subd++) {
-		if (dev->subdevices[subd].type == type)
+		s = &dev->subdevices[subd];
+		if (s->type == type)
 			return subd;
 	}
 	return -1;
@@ -188,7 +191,7 @@ EXPORT_SYMBOL(comedi_find_subdevice_by_type);
 
 int comedi_get_n_channels(struct comedi_device *dev, unsigned int subdevice)
 {
-	struct comedi_subdevice *s = dev->subdevices + subdevice;
+	struct comedi_subdevice *s = &dev->subdevices[subdevice];
 
 	return s->n_chan;
 }
diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c
index 41f95237789..59ff0cf7338 100644
--- a/drivers/staging/comedi/range.c
+++ b/drivers/staging/comedi/range.c
@@ -68,7 +68,7 @@ int do_rangeinfo_ioctl(struct comedi_device *dev,
 		return -EINVAL;
 	if (subd >= dev->n_subdevices)
 		return -EINVAL;
-	s = dev->subdevices + subd;
+	s = &dev->subdevices[subd];
 	if (s->range_table) {
 		lr = s->range_table;
 	} else if (s->range_table_list) {
@@ -131,6 +131,7 @@ static int aref_invalid(struct comedi_subdevice *s, unsigned int chanspec)
 int comedi_check_chanlist(struct comedi_subdevice *s, int n,
 			  unsigned int *chanlist)
 {
+	struct comedi_device *dev = s->device;
 	int i;
 	int chan;
 
@@ -139,10 +140,10 @@ int comedi_check_chanlist(struct comedi_subdevice *s, int n,
 			if (CR_CHAN(chanlist[i]) >= s->n_chan ||
 			    CR_RANGE(chanlist[i]) >= s->range_table->length
 			    || aref_invalid(s, chanlist[i])) {
-				printk(KERN_ERR "bad chanlist[%d]=0x%08x "
-				       "in_chan=%d range length=%d\n", i,
-				       chanlist[i], s->n_chan,
-				       s->range_table->length);
+				dev_warn(dev->class_dev,
+					 "bad chanlist[%d]=0x%08x in_chan=%d range length=%d\n",
+					 i, chanlist[i], s->n_chan,
+					 s->range_table->length);
 				return -EINVAL;
 			}
 	} else if (s->range_table_list) {
@@ -152,13 +153,14 @@ int comedi_check_chanlist(struct comedi_subdevice *s, int n,
 			    CR_RANGE(chanlist[i]) >=
 			    s->range_table_list[chan]->length
 			    || aref_invalid(s, chanlist[i])) {
-				printk(KERN_ERR "bad chanlist[%d]=0x%08x\n",
-				       i, chanlist[i]);
+				dev_warn(dev->class_dev,
+					 "bad chanlist[%d]=0x%08x\n",
+					 i, chanlist[i]);
 				return -EINVAL;
 			}
 		}
 	} else {
-		printk(KERN_ERR "comedi: (bug) no range type list!\n");
+		dev_err(dev->class_dev, "(bug) no range type list!\n");
 		return -EINVAL;
 	}
 	return 0;
diff --git a/drivers/staging/cptm1217/clearpad_tm1217.c b/drivers/staging/cptm1217/clearpad_tm1217.c
index 0d924d3a2ab..a49b0da6004 100644
--- a/drivers/staging/cptm1217/clearpad_tm1217.c
+++ b/drivers/staging/cptm1217/clearpad_tm1217.c
@@ -658,18 +658,7 @@ static struct i2c_driver cp_tm1217_driver = {
 	.resume     = cp_tm1217_resume,
 };
 
-static int __init clearpad_tm1217_init(void)
-{
-	return i2c_add_driver(&cp_tm1217_driver);
-}
-
-static void __exit clearpad_tm1217_exit(void)
-{
-	i2c_del_driver(&cp_tm1217_driver);
-}
-
-module_init(clearpad_tm1217_init);
-module_exit(clearpad_tm1217_exit);
+module_i2c_driver(cp_tm1217_driver);
 
 MODULE_AUTHOR("Ramesh Agarwal <ramesh.agarwal@intel.com>");
 MODULE_DESCRIPTION("Synaptics TM1217 TouchScreen Driver");
diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index d9e3d618f7f..166203aeb7b 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.c
+++ b/drivers/staging/crystalhd/crystalhd_lnx.c
@@ -373,13 +373,15 @@ static int __devinit chd_dec_init_chdev(struct crystalhd_adp *adp)
 	/* register crystalhd class */
 	crystalhd_class = class_create(THIS_MODULE, "crystalhd");
 	if (IS_ERR(crystalhd_class)) {
+		rc = PTR_ERR(crystalhd_class);
 		BCMLOG_ERR("failed to create class\n");
-		goto fail;
+		goto class_create_fail;
 	}
 
 	dev = device_create(crystalhd_class, NULL, MKDEV(adp->chd_dec_major, 0),
 			    NULL, "crystalhd");
 	if (IS_ERR(dev)) {
+		rc = PTR_ERR(dev);
 		BCMLOG_ERR("failed to create device\n");
 		goto device_create_fail;
 	}
@@ -410,6 +412,8 @@ elem_pool_fail:
 	device_destroy(crystalhd_class, MKDEV(adp->chd_dec_major, 0));
 device_create_fail:
 	class_destroy(crystalhd_class);
+class_create_fail:
+	unregister_chrdev(adp->chd_dec_major, CRYSTALHD_API_NAME);
 fail:
 	return rc;
 }
diff --git a/drivers/staging/csr/Kconfig b/drivers/staging/csr/Kconfig
index cee8d48d2af..ad2a1096e92 100644
--- a/drivers/staging/csr/Kconfig
+++ b/drivers/staging/csr/Kconfig
@@ -1,6 +1,6 @@
 config CSR_WIFI
 	tristate "CSR wireless driver"
-	depends on MMC && CFG80211_WEXT
+	depends on MMC && CFG80211_WEXT && INET
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	help
diff --git a/drivers/staging/csr/Makefile b/drivers/staging/csr/Makefile
index afda44b0a92..ab626edc5ba 100644
--- a/drivers/staging/csr/Makefile
+++ b/drivers/staging/csr/Makefile
@@ -25,7 +25,6 @@ csr_wifi-y :=	bh.o				\
 		unifi_event.o			\
 		unifi_pdu_processing.o		\
 		unifi_sme.o			\
-		csr_formatted_io.o		\
 		csr_wifi_hip_card_sdio.o	\
 		csr_wifi_hip_card_sdio_intr.o	\
 		csr_wifi_hip_card_sdio_mem.o	\
diff --git a/drivers/staging/csr/bh.c b/drivers/staging/csr/bh.c
index b089c28d561..addee05a451 100644
--- a/drivers/staging/csr/bh.c
+++ b/drivers/staging/csr/bh.c
@@ -32,45 +32,49 @@
  *      0 on success or else a Linux error code.
  * ---------------------------------------------------------------------------
  */
-int
-uf_start_thread(unifi_priv_t *priv, struct uf_thread *thread, int (*func)(void *))
+int uf_start_thread(unifi_priv_t *priv,
+		    struct uf_thread *thread, int (*func)(void *))
 {
-    if (thread->thread_task != NULL) {
-        unifi_error(priv, "%s thread already started\n", thread->name);
-        return 0;
-    }
-
-    /* Start the kernel thread that handles all h/w accesses. */
-    thread->thread_task = kthread_run(func, priv, "%s", thread->name);
-    if (IS_ERR(thread->thread_task)) {
-        return PTR_ERR(thread->thread_task);
-    }
-
-    /* Module parameter overides the thread priority */
-    if (bh_priority != -1) {
-        if (bh_priority >= 0 && bh_priority <= MAX_RT_PRIO) {
-            struct sched_param param;
-            priv->bh_thread.prio = bh_priority;
-            unifi_trace(priv, UDBG1, "%s thread (RT) priority = %d\n",
-                        thread->name, bh_priority);
-            param.sched_priority = bh_priority;
-            sched_setscheduler(thread->thread_task, SCHED_FIFO, &param);
-        } else if (bh_priority > MAX_RT_PRIO && bh_priority <= MAX_PRIO) {
-            priv->bh_thread.prio = bh_priority;
-            unifi_trace(priv, UDBG1, "%s thread priority = %d\n",
-                        thread->name, PRIO_TO_NICE(bh_priority));
-            set_user_nice(thread->thread_task, PRIO_TO_NICE(bh_priority));
-        } else {
-            priv->bh_thread.prio = DEFAULT_PRIO;
-            unifi_warning(priv, "%s thread unsupported (%d) priority\n",
-                          thread->name, bh_priority);
-        }
-    } else {
-        priv->bh_thread.prio = DEFAULT_PRIO;
-    }
-    unifi_trace(priv, UDBG2, "Started %s thread\n", thread->name);
-
-    return 0;
+	if (thread->thread_task != NULL) {
+		unifi_error(priv, "%s thread already started\n", thread->name);
+		return 0;
+	}
+
+	/* Start the kernel thread that handles all h/w accesses. */
+	thread->thread_task = kthread_run(func, priv, "%s", thread->name);
+	if (IS_ERR(thread->thread_task))
+		return PTR_ERR(thread->thread_task);
+
+	/* Module parameter overides the thread priority */
+	if (bh_priority != -1) {
+		if (bh_priority >= 0 && bh_priority <= MAX_RT_PRIO) {
+			struct sched_param param;
+			priv->bh_thread.prio = bh_priority;
+			unifi_trace(priv, UDBG1,
+				"%s thread (RT) priority = %d\n",
+				thread->name, bh_priority);
+			param.sched_priority = bh_priority;
+			sched_setscheduler(thread->thread_task,
+					   SCHED_FIFO, &param);
+		} else if (bh_priority > MAX_RT_PRIO &&
+			   bh_priority <= MAX_PRIO) {
+			priv->bh_thread.prio = bh_priority;
+			unifi_trace(priv, UDBG1, "%s thread priority = %d\n",
+					thread->name,
+					PRIO_TO_NICE(bh_priority));
+			set_user_nice(thread->thread_task,
+				      PRIO_TO_NICE(bh_priority));
+		} else {
+			priv->bh_thread.prio = DEFAULT_PRIO;
+			unifi_warning(priv,
+				      "%s thread unsupported (%d) priority\n",
+				      thread->name, bh_priority);
+		}
+	} else
+		priv->bh_thread.prio = DEFAULT_PRIO;
+	unifi_trace(priv, UDBG2, "Started %s thread\n", thread->name);
+
+	return 0;
 } /* uf_start_thread() */
 
 
@@ -88,18 +92,18 @@ uf_start_thread(unifi_priv_t *priv, struct uf_thread *thread, int (*func)(void *
  *
  * ---------------------------------------------------------------------------
  */
-    void
-uf_stop_thread(unifi_priv_t *priv, struct uf_thread *thread)
+void uf_stop_thread(unifi_priv_t *priv, struct uf_thread *thread)
 {
-    if (!thread->thread_task) {
-        unifi_notice(priv, "%s thread is already stopped\n", thread->name);
-        return;
-    }
+	if (!thread->thread_task) {
+		unifi_notice(priv, "%s thread is already stopped\n",
+							thread->name);
+		return;
+	}
 
-    unifi_trace(priv, UDBG2, "Stopping %s thread\n", thread->name);
+	unifi_trace(priv, UDBG2, "Stopping %s thread\n", thread->name);
 
-    kthread_stop(thread->thread_task);
-    thread->thread_task = NULL;
+	kthread_stop(thread->thread_task);
+	thread->thread_task = NULL;
 
 } /* uf_stop_thread() */
 
@@ -118,23 +122,24 @@ uf_stop_thread(unifi_priv_t *priv, struct uf_thread *thread)
  *
  * ---------------------------------------------------------------------------
  */
-    void
+void
 uf_wait_for_thread_to_stop(unifi_priv_t *priv, struct uf_thread *thread)
 {
-    /*
-     * kthread_stop() cannot handle the thread exiting while
-     * kthread_should_stop() is false, so sleep until kthread_stop()
-     * wakes us up.
-     */
-    unifi_trace(priv, UDBG2, "%s waiting for the stop signal.\n", thread->name);
-    set_current_state(TASK_INTERRUPTIBLE);
-    if (!kthread_should_stop()) {
-        unifi_trace(priv, UDBG2, "%s schedule....\n", thread->name);
-        schedule();
-    }
-
-    thread->thread_task = NULL;
-    unifi_trace(priv, UDBG2, "%s exiting....\n", thread->name);
+	/*
+	 * kthread_stop() cannot handle the thread exiting while
+	 * kthread_should_stop() is false, so sleep until kthread_stop()
+	 * wakes us up
+	 */
+	unifi_trace(priv, UDBG2, "%s waiting for the stop signal.\n",
+							thread->name);
+	set_current_state(TASK_INTERRUPTIBLE);
+	if (!kthread_should_stop()) {
+		unifi_trace(priv, UDBG2, "%s schedule....\n", thread->name);
+		schedule();
+	}
+
+	thread->thread_task = NULL;
+	unifi_trace(priv, UDBG2, "%s exiting....\n", thread->name);
 } /* uf_wait_for_thread_to_stop() */
 
 
@@ -155,39 +160,41 @@ uf_wait_for_thread_to_stop(unifi_priv_t *priv, struct uf_thread *thread)
  *      None.
  * ---------------------------------------------------------------------------
  */
-    static void
+static void
 handle_bh_error(unifi_priv_t *priv)
 {
-    u8 conf_param = CONFIG_IND_ERROR;
-    u8 interfaceTag = 0; /* used as a loop counter */
+	netInterface_priv_t *interfacePriv;
+	u8 conf_param = CONFIG_IND_ERROR;
+	u8 interfaceTag;
 
 
-    /* Block unifi_run_bh() until the error has been handled. */
-    priv->bh_thread.block_thread = 1;
+	/* Block unifi_run_bh() until the error has been handled. */
+	priv->bh_thread.block_thread = 1;
 
-    /* Consider UniFi to be uninitialised */
-    priv->init_progress = UNIFI_INIT_NONE;
+	/* Consider UniFi to be uninitialised */
+	priv->init_progress = UNIFI_INIT_NONE;
 
-    /* Stop the network traffic */
-    for( interfaceTag =0; interfaceTag <CSR_WIFI_NUM_INTERFACES;interfaceTag ++) {
-        netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag];
-        if (interfacePriv->netdev_registered == 1) {
-            netif_carrier_off(priv->netdev[interfaceTag]);
-        }
-    }
+	/* Stop the network traffic */
+	for (interfaceTag = 0;
+	     interfaceTag < CSR_WIFI_NUM_INTERFACES; interfaceTag++) {
+		interfacePriv = priv->interfacePriv[interfaceTag];
+		if (interfacePriv->netdev_registered)
+			netif_carrier_off(priv->netdev[interfaceTag]);
+	}
 
 #ifdef CSR_NATIVE_LINUX
-    /* Force any client waiting on an mlme_wait_for_reply() to abort. */
-    uf_abort_mlme(priv);
+	/* Force any client waiting on an mlme_wait_for_reply() to abort. */
+	uf_abort_mlme(priv);
 
-    /* Cancel any pending workqueue tasks */
-    flush_workqueue(priv->unifi_workqueue);
+	/* Cancel any pending workqueue tasks */
+	flush_workqueue(priv->unifi_workqueue);
 
 #endif /* CSR_NATIVE_LINUX */
 
-    unifi_error(priv, "handle_bh_error: fatal error is reported to the SME.\n");
-    /* Notify the clients (SME or unifi_manager) for the error. */
-    ul_log_config_ind(priv, &conf_param, sizeof(u8));
+	unifi_error(priv,
+		"handle_bh_error: fatal error is reported to the SME.\n");
+	/* Notify the clients (SME or unifi_manager) for the error. */
+	ul_log_config_ind(priv, &conf_param, sizeof(u8));
 
 } /* handle_bh_error() */
 
diff --git a/drivers/staging/csr/csr_formatted_io.c b/drivers/staging/csr/csr_formatted_io.c
deleted file mode 100644
index 7213cc8fb57..00000000000
--- a/drivers/staging/csr/csr_formatted_io.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/*****************************************************************************
-
-            (c) Cambridge Silicon Radio Limited 2010
-            All rights reserved and confidential information of CSR
-
-            Refer to LICENSE.txt included with this source for details
-            on the license terms.
-
-*****************************************************************************/
-#include <linux/kernel.h>
-#include "csr_formatted_io.h"
-
-s32 CsrSnprintf(char *dest, size_t n, const char *fmt, ...)
-{
-    s32 r;
-    va_list args;
-    va_start(args, fmt);
-    r = vsnprintf(dest, n, fmt, args);
-    va_end(args);
-
-    if (dest && (n > 0))
-    {
-        dest[n - 1] = '\0';
-    }
-
-    return r;
-}
diff --git a/drivers/staging/csr/csr_formatted_io.h b/drivers/staging/csr/csr_formatted_io.h
deleted file mode 100644
index 2e238cb98d5..00000000000
--- a/drivers/staging/csr/csr_formatted_io.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef CSR_FORMATTED_IO_H__
-#define CSR_FORMATTED_IO_H__
-/*****************************************************************************
-
-            (c) Cambridge Silicon Radio Limited 2010
-            All rights reserved and confidential information of CSR
-
-            Refer to LICENSE.txt included with this source for details
-            on the license terms.
-
-*****************************************************************************/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <linux/types.h>
-
-s32 CsrSnprintf(char *dest, size_t n, const char *fmt, ...);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/drivers/staging/csr/csr_framework_ext.c b/drivers/staging/csr/csr_framework_ext.c
index 12e7ddf3220..f91a4bf4e68 100644
--- a/drivers/staging/csr/csr_framework_ext.c
+++ b/drivers/staging/csr/csr_framework_ext.c
@@ -12,20 +12,9 @@
 #include <linux/version.h>
 #include <linux/kthread.h>
 #include <linux/module.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 34)
-#include <linux/slab.h>
-#endif
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 19)
 #include <linux/freezer.h>
-#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27)
-#include <asm/semaphore.h>
-#else
 #include <linux/semaphore.h>
-#endif
-
+#include <linux/slab.h>
 #include <linux/bitops.h>
 
 #include "csr_framework_ext.h"
diff --git a/drivers/staging/csr/csr_panic.c b/drivers/staging/csr/csr_panic.c
index 353a829bb74..095f7fa3ae2 100644
--- a/drivers/staging/csr/csr_panic.c
+++ b/drivers/staging/csr/csr_panic.c
@@ -9,7 +9,6 @@
 *****************************************************************************/
 
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/module.h>
 
 #include "csr_panic.h"
diff --git a/drivers/staging/csr/csr_time.c b/drivers/staging/csr/csr_time.c
index 83586ca34e8..7b597f7622a 100644
--- a/drivers/staging/csr/csr_time.c
+++ b/drivers/staging/csr/csr_time.c
@@ -10,13 +10,6 @@
 
 #include <linux/kernel.h>
 #include <linux/version.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 16)
-#include <linux/autoconf.h>
-#include <linux/config.h>
-#endif
-
 #include <linux/time.h>
 #include <linux/module.h>
 
@@ -24,20 +17,18 @@
 
 CsrTime CsrTimeGet(CsrTime *high)
 {
-    struct timespec ts;
-    u64 time;
-    CsrTime low;
+	struct timespec ts;
+	u64 time;
+	CsrTime low;
 
-    ts = current_kernel_time();
-    time = (u64) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
+	ts = current_kernel_time();
+	time = (u64) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
 
-    if (high != NULL)
-    {
-        *high = (CsrTime) ((time >> 32) & 0xFFFFFFFF);
-    }
+	if (high != NULL)
+		*high = (CsrTime) ((time >> 32) & 0xFFFFFFFF);
 
-    low = (CsrTime) (time & 0xFFFFFFFF);
+	low = (CsrTime) (time & 0xFFFFFFFF);
 
-    return low;
+	return low;
 }
 EXPORT_SYMBOL_GPL(CsrTimeGet);
diff --git a/drivers/staging/csr/csr_wifi_hip_card_sdio.c b/drivers/staging/csr/csr_wifi_hip_card_sdio.c
index 44ab00c53fe..cf148a0fec6 100644
--- a/drivers/staging/csr/csr_wifi_hip_card_sdio.c
+++ b/drivers/staging/csr/csr_wifi_hip_card_sdio.c
@@ -1612,13 +1612,13 @@ static CsrResult card_allocate_memory_resources(card_t *card)
     /* Reset any state carried forward from a previous life */
     card->fh_command_queue.q_rd_ptr = 0;
     card->fh_command_queue.q_wr_ptr = 0;
-    (void)CsrSnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
+    (void)scnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
                       "fh_cmd_q");
     for (i = 0; i < UNIFI_NO_OF_TX_QS; i++)
     {
         card->fh_traffic_queue[i].q_rd_ptr = 0;
         card->fh_traffic_queue[i].q_wr_ptr = 0;
-        (void)CsrSnprintf(card->fh_traffic_queue[i].name,
+        (void)scnprintf(card->fh_traffic_queue[i].name,
                           UNIFI_QUEUE_NAME_MAX_LENGTH, "fh_data_q%d", i);
     }
 #ifndef CSR_WIFI_HIP_TA_DISABLE
@@ -1826,13 +1826,13 @@ static void card_init_soft_queues(card_t *card)
     /* Reset any state carried forward from a previous life */
     card->fh_command_queue.q_rd_ptr = 0;
     card->fh_command_queue.q_wr_ptr = 0;
-    (void)CsrSnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
+    (void)scnprintf(card->fh_command_queue.name, UNIFI_QUEUE_NAME_MAX_LENGTH,
                       "fh_cmd_q");
     for (i = 0; i < UNIFI_NO_OF_TX_QS; i++)
     {
         card->fh_traffic_queue[i].q_rd_ptr = 0;
         card->fh_traffic_queue[i].q_wr_ptr = 0;
-        (void)CsrSnprintf(card->fh_traffic_queue[i].name,
+        (void)scnprintf(card->fh_traffic_queue[i].name,
                           UNIFI_QUEUE_NAME_MAX_LENGTH, "fh_data_q%d", i);
     }
 #ifndef CSR_WIFI_HIP_TA_DISABLE
diff --git a/drivers/staging/csr/csr_wifi_hip_download.c b/drivers/staging/csr/csr_wifi_hip_download.c
index 8e4a4608ba5..6db672caaa0 100644
--- a/drivers/staging/csr/csr_wifi_hip_download.c
+++ b/drivers/staging/csr/csr_wifi_hip_download.c
@@ -250,6 +250,7 @@ static CsrResult do_patch_convert_download(card_t *card, void *dlpriv, xbv1_t *p
         if (r != CSR_RESULT_SUCCESS)
         {
             unifi_error(card->ospriv, "Failed to find BOOT_LOADER_CONTROL\n");
+            kfree(pfw);
             return CSR_RESULT_FAILURE;
         }
 
@@ -265,6 +266,7 @@ static CsrResult do_patch_convert_download(card_t *card, void *dlpriv, xbv1_t *p
         desc = unifi_fw_open_buffer(card->ospriv, pfw, psize);
         if (!desc)
         {
+            kfree(pfw);
             return CSR_WIFI_HIP_RESULT_NO_MEMORY;
         }
 
diff --git a/drivers/staging/csr/csr_wifi_hip_send.c b/drivers/staging/csr/csr_wifi_hip_send.c
index 684d30459d7..86aa23cefe3 100644
--- a/drivers/staging/csr/csr_wifi_hip_send.c
+++ b/drivers/staging/csr/csr_wifi_hip_send.c
@@ -172,13 +172,8 @@ static CsrResult send_signal(card_t *card, const u8 *sigptr, u32 siglen,
     {
         const u8 *sig = sigptr;
 
-        unifi_error(card->ospriv, "Signal(%d): %02x %02x %02x %02x %02x %02x %02x %02x"
-                    " %02x %02x %02x %02x %02x %02x %02x %02x\n",
-                    siglen,
-                    sig[0], sig[1], sig[2], sig[3],
-                    sig[4], sig[5], sig[6], sig[7],
-                    sig[8], sig[9], sig[10], sig[11],
-                    sig[12], sig[13], sig[14], sig[15]);
+		unifi_error(card->ospriv, "Signal(%d): %*ph\n", siglen,
+					  16, sig);
         unifi_error(card->ospriv, "Bulkdata pointer %p(%d), %p(%d)\n",
                     bulkdata != NULL?bulkdata->d[0].os_data_ptr : NULL,
                     bulkdata != NULL?bulkdata->d[0].data_length : 0,
diff --git a/drivers/staging/csr/csr_wifi_hip_udi.c b/drivers/staging/csr/csr_wifi_hip_udi.c
index 07cfd36c497..a65b822db69 100644
--- a/drivers/staging/csr/csr_wifi_hip_udi.c
+++ b/drivers/staging/csr/csr_wifi_hip_udi.c
@@ -64,104 +64,104 @@ s32 unifi_print_status(card_t *card, char *str, s32 *remain)
     }
 
     i = n = 0;
-    written = CsrSnprintf(p, remaining, "Chip ID %u\n",
+    written = scnprintf(p, remaining, "Chip ID %u\n",
                           (u16)card->chip_id);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "Chip Version %04X\n",
+    written = scnprintf(p, remaining, "Chip Version %04X\n",
                           card->chip_version);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "HIP v%u.%u\n",
+    written = scnprintf(p, remaining, "HIP v%u.%u\n",
                           (card->config_data.version >> 8) & 0xFF,
                           card->config_data.version & 0xFF);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "Build %lu: %s\n",
+    written = scnprintf(p, remaining, "Build %u: %s\n",
                           card->build_id, card->build_id_string);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
     cfg = &card->config_data;
 
-    written = CsrSnprintf(p, remaining, "sdio ctrl offset          %u\n",
+    written = scnprintf(p, remaining, "sdio ctrl offset          %u\n",
                           cfg->sdio_ctrl_offset);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "fromhost sigbuf handle    %u\n",
+    written = scnprintf(p, remaining, "fromhost sigbuf handle    %u\n",
                           cfg->fromhost_sigbuf_handle);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "tohost_sigbuf_handle      %u\n",
+    written = scnprintf(p, remaining, "tohost_sigbuf_handle      %u\n",
                           cfg->tohost_sigbuf_handle);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "num_fromhost_sig_frags    %u\n",
+    written = scnprintf(p, remaining, "num_fromhost_sig_frags    %u\n",
                           cfg->num_fromhost_sig_frags);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "num_tohost_sig_frags      %u\n",
+    written = scnprintf(p, remaining, "num_tohost_sig_frags      %u\n",
                           cfg->num_tohost_sig_frags);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "num_fromhost_data_slots   %u\n",
+    written = scnprintf(p, remaining, "num_fromhost_data_slots   %u\n",
                           cfg->num_fromhost_data_slots);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "num_tohost_data_slots     %u\n",
+    written = scnprintf(p, remaining, "num_tohost_data_slots     %u\n",
                           cfg->num_tohost_data_slots);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "data_slot_size            %u\n",
+    written = scnprintf(p, remaining, "data_slot_size            %u\n",
                           cfg->data_slot_size);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
     /* Added by protocol version 0x0001 */
-    written = CsrSnprintf(p, remaining, "overlay_size              %u\n",
+    written = scnprintf(p, remaining, "overlay_size              %u\n",
                           (u16)cfg->overlay_size);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
     /* Added by protocol version 0x0300 */
-    written = CsrSnprintf(p, remaining, "data_slot_round           %u\n",
+    written = scnprintf(p, remaining, "data_slot_round           %u\n",
                           cfg->data_slot_round);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "sig_frag_size             %u\n",
+    written = scnprintf(p, remaining, "sig_frag_size             %u\n",
                           cfg->sig_frag_size);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
     /* Added by protocol version 0x0300 */
-    written = CsrSnprintf(p, remaining, "tohost_sig_pad            %u\n",
+    written = scnprintf(p, remaining, "tohost_sig_pad            %u\n",
                           cfg->tohost_signal_padding);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
-    written = CsrSnprintf(p, remaining, "\nInternal state:\n");
+    written = scnprintf(p, remaining, "\nInternal state:\n");
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
-    written = CsrSnprintf(p, remaining, "Last PHY PANIC: %04x:%04x\n",
+    written = scnprintf(p, remaining, "Last PHY PANIC: %04x:%04x\n",
                           card->last_phy_panic_code, card->last_phy_panic_arg);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "Last MAC PANIC: %04x:%04x\n",
+    written = scnprintf(p, remaining, "Last MAC PANIC: %04x:%04x\n",
                           card->last_mac_panic_code, card->last_mac_panic_arg);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
-    written = CsrSnprintf(p, remaining, "fhsr: %u\n",
+    written = scnprintf(p, remaining, "fhsr: %u\n",
                           (u16)card->from_host_signals_r);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "fhsw: %u\n",
+    written = scnprintf(p, remaining, "fhsw: %u\n",
                           (u16)card->from_host_signals_w);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "thsr: %u\n",
+    written = scnprintf(p, remaining, "thsr: %u\n",
                           (u16)card->to_host_signals_r);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "thsw: %u\n",
+    written = scnprintf(p, remaining, "thsw: %u\n",
                           (u16)card->to_host_signals_w);
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining,
-                          "fh buffer contains: %u signals, %u bytes\n",
+    written = scnprintf(p, remaining,
+                          "fh buffer contains: %d signals, %td bytes\n",
                           card->fh_buffer.count,
                           card->fh_buffer.ptr - card->fh_buffer.buf);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
-    written = CsrSnprintf(p, remaining, "paused: ");
+    written = scnprintf(p, remaining, "paused: ");
     UNIFI_SNPRINTF_RET(p, remaining, written);
     for (i = 0; i < sizeof(card->tx_q_paused_flag) / sizeof(card->tx_q_paused_flag[0]); i++)
     {
-        written = CsrSnprintf(p, remaining, card->tx_q_paused_flag[i]?"1" : "0");
+        written = scnprintf(p, remaining, card->tx_q_paused_flag[i]?"1" : "0");
         UNIFI_SNPRINTF_RET(p, remaining, written);
     }
-    written = CsrSnprintf(p, remaining, "\n");
+    written = scnprintf(p, remaining, "\n");
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
-    written = CsrSnprintf(p, remaining,
+    written = scnprintf(p, remaining,
                           "fh command q: %u waiting, %u free of %u:\n",
                           CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_command_queue),
                           CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_command_queue),
@@ -169,7 +169,7 @@ s32 unifi_print_status(card_t *card, char *str, s32 *remain)
     UNIFI_SNPRINTF_RET(p, remaining, written);
     for (i = 0; i < UNIFI_NO_OF_TX_QS; i++)
     {
-        written = CsrSnprintf(p, remaining,
+        written = scnprintf(p, remaining,
                               "fh traffic q[%u]: %u waiting, %u free of %u:\n",
                               i,
                               CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_traffic_queue[i]),
@@ -178,58 +178,58 @@ s32 unifi_print_status(card_t *card, char *str, s32 *remain)
         UNIFI_SNPRINTF_RET(p, remaining, written);
     }
 
-    written = CsrSnprintf(p, remaining, "fh data slots free: %u\n",
+    written = scnprintf(p, remaining, "fh data slots free: %u\n",
                           card->from_host_data?CardGetFreeFromHostDataSlots(card) : 0);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
 
-    written = CsrSnprintf(p, remaining, "From host data slots:");
+    written = scnprintf(p, remaining, "From host data slots:");
     UNIFI_SNPRINTF_RET(p, remaining, written);
     n = card->config_data.num_fromhost_data_slots;
     for (i = 0; i < n && card->from_host_data; i++)
     {
-        written = CsrSnprintf(p, remaining, " %u",
+        written = scnprintf(p, remaining, " %u",
                               (u16)card->from_host_data[i].bd.data_length);
         UNIFI_SNPRINTF_RET(p, remaining, written);
     }
-    written = CsrSnprintf(p, remaining, "\n");
+    written = scnprintf(p, remaining, "\n");
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
-    written = CsrSnprintf(p, remaining, "To host data slots:");
+    written = scnprintf(p, remaining, "To host data slots:");
     UNIFI_SNPRINTF_RET(p, remaining, written);
     n = card->config_data.num_tohost_data_slots;
     for (i = 0; i < n && card->to_host_data; i++)
     {
-        written = CsrSnprintf(p, remaining, " %u",
+        written = scnprintf(p, remaining, " %u",
                               (u16)card->to_host_data[i].data_length);
         UNIFI_SNPRINTF_RET(p, remaining, written);
     }
 
-    written = CsrSnprintf(p, remaining, "\n");
+    written = scnprintf(p, remaining, "\n");
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
 #ifdef CSR_UNSAFE_SDIO_ACCESS
-    written = CsrSnprintf(p, remaining, "Host State: %s\n", states[card->host_state]);
+    written = scnprintf(p, remaining, "Host State: %s\n", states[card->host_state]);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
     r = unifi_check_io_status(card, &iostate);
     if (iostate == 1)
     {
-        written = CsrSnprintf(p, remaining, "I/O Check: F1 disabled\n");
+        written = scnprintf(p, remaining, "I/O Check: F1 disabled\n");
         UNIFI_SNPRINTF_RET(p, remaining, written);
     }
     else
     {
         if (iostate == 1)
         {
-            written = CsrSnprintf(p, remaining, "I/O Check: pending interrupt\n");
+            written = scnprintf(p, remaining, "I/O Check: pending interrupt\n");
             UNIFI_SNPRINTF_RET(p, remaining, written);
         }
 
-        written = CsrSnprintf(p, remaining, "BH reason interrupt = %d\n",
+        written = scnprintf(p, remaining, "BH reason interrupt = %d\n",
                               card->bh_reason_unifi);
         UNIFI_SNPRINTF_RET(p, remaining, written);
-        written = CsrSnprintf(p, remaining, "BH reason host      = %d\n",
+        written = scnprintf(p, remaining, "BH reason host      = %d\n",
                               card->bh_reason_host);
         UNIFI_SNPRINTF_RET(p, remaining, written);
 
@@ -238,26 +238,26 @@ s32 unifi_print_status(card_t *card, char *str, s32 *remain)
             r = unifi_read_8_or_16(card, card->sdio_ctrl_addr + 2, &b);
             if ((r == CSR_RESULT_SUCCESS) && (!(b & 0x80)))
             {
-                written = CsrSnprintf(p, remaining, "fhsr: %u (driver thinks is %u)\n",
+                written = scnprintf(p, remaining, "fhsr: %u (driver thinks is %u)\n",
                                       b, card->from_host_signals_r);
                 UNIFI_SNPRINTF_RET(p, remaining, written);
                 break;
             }
         }
         iostate = unifi_read_shared_count(card, card->sdio_ctrl_addr + 4);
-        written = CsrSnprintf(p, remaining, "thsw: %u (driver thinks is %u)\n",
+        written = scnprintf(p, remaining, "thsw: %u (driver thinks is %u)\n",
                               iostate, card->to_host_signals_w);
         UNIFI_SNPRINTF_RET(p, remaining, written);
     }
 #endif
 
-    written = CsrSnprintf(p, remaining, "\nStats:\n");
+    written = scnprintf(p, remaining, "\nStats:\n");
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "Total SDIO bytes: R=%lu W=%lu\n",
+    written = scnprintf(p, remaining, "Total SDIO bytes: R=%u W=%u\n",
                           card->sdio_bytes_read, card->sdio_bytes_written);
 
     UNIFI_SNPRINTF_RET(p, remaining, written);
-    written = CsrSnprintf(p, remaining, "Interrupts generated on card: %lu\n",
+    written = scnprintf(p, remaining, "Interrupts generated on card: %u\n",
                           card->unifi_interrupt_seq);
     UNIFI_SNPRINTF_RET(p, remaining, written);
 
diff --git a/drivers/staging/csr/csr_wifi_hip_unifi.h b/drivers/staging/csr/csr_wifi_hip_unifi.h
index dc3c60b4970..2923e2ef12f 100644
--- a/drivers/staging/csr/csr_wifi_hip_unifi.h
+++ b/drivers/staging/csr/csr_wifi_hip_unifi.h
@@ -98,7 +98,6 @@ extern "C" {
 #include "csr_framework_ext.h"  /* from the synergy porting folder */
 #include "csr_sdio.h"           /* from the synergy porting folder */
 #include "csr_macro.h"          /* from the synergy porting folder */
-#include "csr_formatted_io.h"   /* from the synergy gsp folder */
 #include "csr_wifi_result.h"
 
 /* Utility MACROS. Note that UNIFI_MAC_ADDRESS_CMP returns TRUE on success */
diff --git a/drivers/staging/csr/drv.c b/drivers/staging/csr/drv.c
index b2c27f4f03d..249758076a7 100644
--- a/drivers/staging/csr/drv.c
+++ b/drivers/staging/csr/drv.c
@@ -15,8 +15,6 @@
  * ---------------------------------------------------------------------------
  */
 
-
-
 /*
  * Porting Notes:
  * Part of this file contains an example for how to glue the OS layer
@@ -37,6 +35,7 @@
 #include <linux/poll.h>
 #include <asm/uaccess.h>
 #include <linux/jiffies.h>
+#include <linux/version.h>
 
 #include "csr_wifi_hip_unifiversion.h"
 #include "unifi_priv.h"
@@ -124,11 +123,7 @@ static void udi_set_log_filter(ul_client_t *pcli,
 
 
 /* Mutex to protect access to  priv->sme_cli */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)
 DEFINE_SEMAPHORE(udi_mutex);
-#else
-DECLARE_MUTEX(udi_mutex);
-#endif
 
 s32 CsrHipResultToStatus(CsrResult csrResult)
 {
@@ -1980,18 +1975,6 @@ uf_sme_queue_message(unifi_priv_t *priv, u8 *buffer, int length)
 } /* uf_sme_queue_message() */
 #endif
 
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-#define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args)       \
-    device_create(_class, _parent, _devno, _priv, _fmt, _args)
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
-#define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args)       \
-    device_create_drvdata(_class, _parent, _devno, _priv, _fmt, _args)
-#else
-#define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args)       \
-    device_create(_class, _parent, _devno, _fmt, _args)
-#endif
-
 /*
  ****************************************************************************
  *
@@ -2009,17 +1992,6 @@ static struct file_operations unifi_fops = {
     .poll       = unifi_poll,
 };
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-#define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args)       \
-    device_create(_class, _parent, _devno, _priv, _fmt, _args)
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
-#define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args)       \
-    device_create_drvdata(_class, _parent, _devno, _priv, _fmt, _args)
-#else
-#define UF_DEVICE_CREATE(_class, _parent, _devno, _priv, _fmt, _args)       \
-    device_create(_class, _parent, _devno, _fmt, _args)
-#endif
-
 static dev_t unifi_first_devno;
 static struct class *unifi_class;
 
@@ -2042,11 +2014,11 @@ int uf_create_device_nodes(unifi_priv_t *priv, int bus_id)
     }
 
 #ifdef SDIO_EXPORTS_STRUCT_DEVICE
-    if (!UF_DEVICE_CREATE(unifi_class, priv->unifi_device,
-                          devno, priv, "unifi%d", bus_id)) {
+    if (!device_create(unifi_class, priv->unifi_device,
+                       devno, priv, "unifi%d", bus_id)) {
 #else
-    priv->unifi_device = UF_DEVICE_CREATE(unifi_class, NULL,
-                                          devno, priv, "unifi%d", bus_id);
+    priv->unifi_device = device_create(unifi_class, NULL,
+                                       devno, priv, "unifi%d", bus_id);
     if (priv->unifi_device == NULL) {
 #endif /* SDIO_EXPORTS_STRUCT_DEVICE */
 
@@ -2068,13 +2040,13 @@ int uf_create_device_nodes(unifi_priv_t *priv, int bus_id)
         return r;
     }
 
-    if (!UF_DEVICE_CREATE(unifi_class,
+    if (!device_create(unifi_class,
 #ifdef SDIO_EXPORTS_STRUCT_DEVICE
-                          priv->unifi_device,
+                       priv->unifi_device,
 #else
-                          NULL,
+                       NULL,
 #endif /* SDIO_EXPORTS_STRUCT_DEVICE */
-                          devno, priv, "unifiudi%d", bus_id)) {
+                       devno, priv, "unifiudi%d", bus_id)) {
         device_destroy(unifi_class, priv->unifi_cdev.dev);
         cdev_del(&priv->unifiudi_cdev);
         cdev_del(&priv->unifi_cdev);
diff --git a/drivers/staging/csr/firmware.c b/drivers/staging/csr/firmware.c
index d14e1183961..b6d8a6e5291 100644
--- a/drivers/staging/csr/firmware.c
+++ b/drivers/staging/csr/firmware.c
@@ -286,7 +286,7 @@ uf_run_unifihelper(unifi_priv_t *priv)
 
     unifi_trace(priv, UDBG2, "running %s %s %s\n", argv[0], argv[1], argv[2]);
 
-    r = call_usermodehelper(argv[0], argv, envp, 0);
+    r = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_EXEC);
 
     return r;
 #else
@@ -402,9 +402,7 @@ int uf_release_firmware_files(unifi_priv_t *priv)
 int uf_release_firmware(unifi_priv_t *priv, struct dlpriv *to_free)
 {
     if (to_free != NULL) {
-        if (to_free->fw_desc != NULL) {
-            release_firmware((const struct firmware *)to_free->fw_desc);
-        }
+        release_firmware((const struct firmware *)to_free->fw_desc);
         to_free->fw_desc = NULL;
         to_free->dl_data = NULL;
         to_free->dl_len = 0;
diff --git a/drivers/staging/csr/io.c b/drivers/staging/csr/io.c
index e6503d9620a..caf48e3120c 100644
--- a/drivers/staging/csr/io.c
+++ b/drivers/staging/csr/io.c
@@ -31,6 +31,7 @@
  * ---------------------------------------------------------------------------
  */
 #include <linux/proc_fs.h>
+#include <linux/version.h>
 
 #include "csr_wifi_hip_unifi.h"
 #include "csr_wifi_hip_unifiversion.h"
@@ -38,7 +39,6 @@
 #include "unifiio.h"
 #include "unifi_priv.h"
 
-
 /*
  * Array of pointers to context structs for unifi devices that are present.
  * The index in the array corresponds to the wlan interface number
@@ -70,11 +70,7 @@ static int In_use[MAX_UNIFI_DEVS];
  * Mutex to prevent UDI clients to open the character device before the priv
  * is created and initialised.
  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)
 DEFINE_SEMAPHORE(Unifi_instance_mutex);
-#else
-DECLARE_MUTEX(Unifi_instance_mutex);
-#endif
 /*
  * When the device is removed, unregister waits on Unifi_cleanup_wq
  * until all the UDI clients release the character device.
@@ -177,21 +173,6 @@ uf_register_netdev(unifi_priv_t *priv, int interfaceTag)
     /* The device is registed */
     interfacePriv->netdev_registered = 1;
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
-    /*
-     * IMPORTANT:
-     * uf_install_qdisc() holds the network device lock, we can not
-     * install the qdisk before the network device is registered.
-     */
-    r = uf_install_qdisc(priv->netdev[interfaceTag]);
-    if (r) {
-        unifi_error(priv, "Failed to install qdisc\n");
-        return r;
-    }
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
 #ifdef CSR_SUPPORT_SME
     /*
      * Register the inet handler; it notifies us for changes in the IP address.
@@ -347,7 +328,7 @@ register_unifi_sdio(CsrSdioFunction *sdio_dev, int bus_id, struct device *dev)
     /*
      * We use the slot number as unifi device index.
      */
-    snprintf(priv->proc_entry_name, 64, "driver/unifi%d", priv->instance);
+    scnprintf(priv->proc_entry_name, 64, "driver/unifi%d", priv->instance);
     /*
      * The following complex casting is in place in order to eliminate 64-bit compilation warning
      * "cast to/from pointer from/to integer of different size"
@@ -669,7 +650,7 @@ unregister_unifi_sdio(int bus_id)
         if(interfacePriv->netdev_registered)
         {
             netif_carrier_off(priv->netdev[interfaceTag]);
-            UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[interfaceTag]);
+            netif_tx_stop_all_queues(priv->netdev[interfaceTag]);
         }
     }
 
@@ -904,54 +885,54 @@ uf_read_proc(char *page, char **start, off_t offset, int count,
 
     orig_p = p;
 
-    written = CsrSnprintf(p, remain, "UniFi SDIO Driver: %s %s %s\n",
+    written = scnprintf(p, remain, "UniFi SDIO Driver: %s %s %s\n",
             CSR_WIFI_VERSION, __DATE__, __TIME__);
     UNIFI_SNPRINTF_RET(p, remain, written);
 #ifdef CSR_SME_USERSPACE
-    written = CsrSnprintf(p, remain, "SME: CSR userspace ");
+    written = scnprintf(p, remain, "SME: CSR userspace ");
     UNIFI_SNPRINTF_RET(p, remain, written);
 #ifdef CSR_SUPPORT_WEXT
-    written = CsrSnprintf(p, remain, "with WEXT support\n");
+    written = scnprintf(p, remain, "with WEXT support\n");
 #else
-    written = CsrSnprintf(p, remain, "\n");
+    written = scnprintf(p, remain, "\n");
 #endif /* CSR_SUPPORT_WEXT */
     UNIFI_SNPRINTF_RET(p, remain, written);
 #endif /* CSR_SME_USERSPACE */
 #ifdef CSR_NATIVE_LINUX
-    written = CsrSnprintf(p, remain, "SME: native\n");
+    written = scnprintf(p, remain, "SME: native\n");
     UNIFI_SNPRINTF_RET(p, remain, written);
 #endif
 
 #ifdef CSR_SUPPORT_SME
-    written = CsrSnprintf(p, remain,
-            "Firmware (ROM) build:%lu, Patch:%lu\n",
+    written = scnprintf(p, remain,
+            "Firmware (ROM) build:%u, Patch:%u\n",
             priv->card_info.fw_build,
             priv->sme_versions.firmwarePatch);
     UNIFI_SNPRINTF_RET(p, remain, written);
 #endif
     p += unifi_print_status(priv->card, p, &remain);
 
-    written = CsrSnprintf(p, remain, "Last dbg str: %s\n",
+    written = scnprintf(p, remain, "Last dbg str: %s\n",
             priv->last_debug_string);
     UNIFI_SNPRINTF_RET(p, remain, written);
 
-    written = CsrSnprintf(p, remain, "Last dbg16:");
+    written = scnprintf(p, remain, "Last dbg16:");
     UNIFI_SNPRINTF_RET(p, remain, written);
     for (i = 0; i < 8; i++) {
-        written = CsrSnprintf(p, remain, " %04X",
+        written = scnprintf(p, remain, " %04X",
                 priv->last_debug_word16[i]);
         UNIFI_SNPRINTF_RET(p, remain, written);
     }
-    written = CsrSnprintf(p, remain, "\n");
+    written = scnprintf(p, remain, "\n");
     UNIFI_SNPRINTF_RET(p, remain, written);
-    written = CsrSnprintf(p, remain, "           ");
+    written = scnprintf(p, remain, "           ");
     UNIFI_SNPRINTF_RET(p, remain, written);
     for (; i < 16; i++) {
-        written = CsrSnprintf(p, remain, " %04X",
+        written = scnprintf(p, remain, " %04X",
                 priv->last_debug_word16[i]);
         UNIFI_SNPRINTF_RET(p, remain, written);
     }
-    written = CsrSnprintf(p, remain, "\n");
+    written = scnprintf(p, remain, "\n");
     UNIFI_SNPRINTF_RET(p, remain, written);
     *start = page;
 
diff --git a/drivers/staging/csr/monitor.c b/drivers/staging/csr/monitor.c
index 628782ad641..7c524a18958 100644
--- a/drivers/staging/csr/monitor.c
+++ b/drivers/staging/csr/monitor.c
@@ -10,6 +10,7 @@
  * ---------------------------------------------------------------------------
  */
 
+#include <linux/version.h>
 #include "unifi_priv.h"
 
 #ifdef UNIFI_SNIFF_ARPHRD
@@ -23,8 +24,6 @@
 #define ETH_P_80211_RAW ETH_P_ALL
 #endif
 
-
-
 /*
  * ---------------------------------------------------------------------------
  *  uf_start_sniff
@@ -192,11 +191,7 @@ netrx_radiotap(unifi_priv_t *priv,
 
 
     skb->dev = dev;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
     skb->mac_header = skb->data;
-#else
-    skb->mac.raw = skb->data;
-#endif
     skb->pkt_type = PACKET_OTHERHOST;
     skb->protocol = __constant_htons(ETH_P_80211_RAW);
     memset(skb->cb, 0, sizeof(skb->cb));
diff --git a/drivers/staging/csr/netdev.c b/drivers/staging/csr/netdev.c
index 1e6e111a8e1..9a52ab408e1 100644
--- a/drivers/staging/csr/netdev.c
+++ b/drivers/staging/csr/netdev.c
@@ -15,7 +15,6 @@
  * ---------------------------------------------------------------------------
  */
 
-
 /*
  * Porting Notes:
  * This file implements the data plane of the UniFi linux driver.
@@ -48,59 +47,14 @@
 #include <linux/etherdevice.h>
 #include <linux/mutex.h>
 #include <linux/semaphore.h>
-
+#include <linux/version.h>
 #include <linux/vmalloc.h>
 #include "csr_wifi_hip_unifi.h"
 #include "csr_wifi_hip_conversions.h"
 #include "unifi_priv.h"
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
-#include <net/iw_handler.h>
-#endif
 #include <net/pkt_sched.h>
 
 
-/* ALLOW_Q_PAUSE: Pre 2.6.28 kernels do not support multiple driver queues (required for QoS).
- * In order to support QoS in these kernels, multiple queues are implemented in the driver. But since
- * there is only a single queue in the kernel (leading to multiple queues in the driver) there is no possibility
- * of stopping a particular queue in the kernel. Stopping the single kernel queue leads to undesirable starvation
- * of driver queues. One of the proposals is to not stop the kernel queue but to prevent dequeuing from the
- * 'stopped' driver queue. Allow q pause is an experimental implementation of this scheme for pre 2.6.28 kernels.
- * When NOT defined, queues are paused locally in the driver and packets are dequeued for transmission only from the
- * unpaused queues. When Allow q pause is defined the kernel queue is stopped whenever any driver queue is paused.
- */
-#define ALLOW_Q_PAUSE
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
-#ifdef UNIFI_NET_NAME
-#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues)     \
-    do {                                                                \
-        static char name[8];                                           \
-        sprintf(name, "%s%s", UNIFI_NET_NAME, _name);                   \
-        _dev = alloc_netdev_mq(_size, name, _setup, _num_of_queues);    \
-    } while (0);
-#else
-#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues)     \
-    do {                                                                \
-        _dev = alloc_etherdev_mq(_size, _num_of_queues);                \
-    } while (0);
-#endif /* UNIFI_NET_NAME */
-#else
-#ifdef UNIFI_NET_NAME
-#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues)     \
-    do {                                                                \
-        static char name[8];                                           \
-        sprintf(name, "%s%s", UNIFI_NET_NAME, _name);                   \
-        _dev = alloc_netdev(_size, name, _setup);                       \
-    } while (0);
-#else
-#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues)     \
-    do {                                                                \
-        _dev = alloc_etherdev(_size);                                   \
-    } while (0);
-#endif /* UNIFI_NET_NAME */
-#endif /* LINUX_VERSION_CODE */
-
-
 /* Wext handler is suported only if CSR_SUPPORT_WEXT is defined */
 #ifdef CSR_SUPPORT_WEXT
 extern struct iw_handler_def unifi_iw_handler_def;
@@ -119,20 +73,8 @@ static int uf_net_open(struct net_device *dev);
 static int uf_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static int uf_net_stop(struct net_device *dev);
 static struct net_device_stats *uf_net_get_stats(struct net_device *dev);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
 static u16 uf_net_select_queue(struct net_device *dev, struct sk_buff *skb);
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 static netdev_tx_t uf_net_xmit(struct sk_buff *skb, struct net_device *dev);
-#else
-static int uf_net_xmit(struct sk_buff *skb, struct net_device *dev);
-#ifndef NETDEV_TX_OK
-#define NETDEV_TX_OK        0
-#endif
-#ifndef NETDEV_TX_BUSY
-#define NETDEV_TX_BUSY      1
-#endif
-#endif
 static void uf_set_multicast_list(struct net_device *dev);
 
 
@@ -182,62 +124,8 @@ struct uf_tx_packet_data {
     unsigned long host_tag;
 };
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-static int uf_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd);
-static int uf_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd);
-static struct sk_buff *uf_qdiscop_dequeue(struct Qdisc* qd);
-static void uf_qdiscop_reset(struct Qdisc* qd);
-static void uf_qdiscop_destroy(struct Qdisc* qd);
-static int uf_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
-static int uf_qdiscop_tune(struct Qdisc *qd, struct nlattr *opt);
-static int uf_qdiscop_init(struct Qdisc *qd, struct nlattr *opt);
-#else
-static int uf_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt);
-static int uf_qdiscop_init(struct Qdisc *qd, struct rtattr *opt);
-#endif
-#endif
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-/* queueing discipline operations */
-static struct Qdisc_ops uf_qdisc_ops =
-{
-    .next = NULL,
-    .cl_ops = NULL,
-    .id = "UniFi Qdisc",
-    .priv_size = sizeof(struct uf_sched_data),
-
-    .enqueue = uf_qdiscop_enqueue,
-    .dequeue = uf_qdiscop_dequeue,
-    .requeue = uf_qdiscop_requeue,
-    .drop = NULL, /* drop not needed since we are always the root qdisc */
-
-    .init = uf_qdiscop_init,
-    .reset = uf_qdiscop_reset,
-    .destroy = uf_qdiscop_destroy,
-    .change = uf_qdiscop_tune,
-
-    .dump = uf_qdiscop_dump,
-};
-#endif /* LINUX_VERSION_CODE */
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
-#define UF_QDISC_CREATE_DFLT(_dev, _ops, _root)
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-#define UF_QDISC_CREATE_DFLT(_dev, _ops, _root)         \
-    qdisc_create_dflt(dev, netdev_get_tx_queue(_dev, 0), _ops, _root)
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
-#define UF_QDISC_CREATE_DFLT(_dev, _ops, _root)         \
-    qdisc_create_dflt(dev, _ops, _root)
-#else
-#define UF_QDISC_CREATE_DFLT(_dev, _ops, _root)         \
-    qdisc_create_dflt(dev, _ops)
-#endif /* LINUX_VERSION_CODE */
-
 #endif /* CONFIG_NET_SCHED */
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
 static const struct net_device_ops uf_netdev_ops =
 {
     .ndo_open = uf_net_open,
@@ -248,7 +136,6 @@ static const struct net_device_ops uf_netdev_ops =
     .ndo_set_rx_mode = uf_set_multicast_list,
     .ndo_select_queue = uf_net_select_queue,
 };
-#endif
 
 static u8 oui_rfc1042[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
 static u8 oui_8021h[P80211_OUI_LEN]   = { 0x00, 0x00, 0xf8 };
@@ -310,7 +197,7 @@ uf_alloc_netdevice(CsrSdioFunction *sdio_dev, int bus_id)
      * The RedHat 9 redhat-config-network tool doesn't recognise wlan* devices,
      * so use "eth*" (like other wireless extns drivers).
      */
-    UF_ALLOC_NETDEV(dev, sizeof(unifi_priv_t)+sizeof(netInterface_priv_t), "%d", ether_setup, UNIFI_TRAFFIC_Q_MAX);
+    dev = alloc_etherdev_mq(sizeof(unifi_priv_t) + sizeof(netInterface_priv_t), UNIFI_TRAFFIC_Q_MAX);
 
     if (dev == NULL) {
         return NULL;
@@ -332,22 +219,7 @@ uf_alloc_netdevice(CsrSdioFunction *sdio_dev, int bus_id)
     priv->interfacePriv[0] = interfacePriv;
 
     /* Setup / override net_device fields */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
     dev->netdev_ops = &uf_netdev_ops;
-#else
-    dev->open             = uf_net_open;
-    dev->stop             = uf_net_stop;
-    dev->hard_start_xmit  = uf_net_xmit;
-    dev->do_ioctl         = uf_net_ioctl;
-
-    /* called by /proc/net/dev */
-    dev->get_stats = uf_net_get_stats;
-
-    dev->set_multicast_list = uf_set_multicast_list;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
-    dev->select_queue       = uf_net_select_queue;
-#endif
-#endif
 
 #ifdef CSR_SUPPORT_WEXT
     dev->wireless_handlers = &unifi_iw_handler_def;
@@ -440,21 +312,13 @@ uf_alloc_netdevice(CsrSdioFunction *sdio_dev, int bus_id)
     interfacePriv->connected = UnifiConnectedUnknown;  /* -1 unknown, 0 no, 1 yes */
 
 #ifdef USE_DRIVER_LOCK
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)
     sema_init(&priv->lock, 1);
-#else
-    init_MUTEX(&priv->lock);
-#endif
 #endif /* USE_DRIVER_LOCK */
 
     spin_lock_init(&priv->send_signal_lock);
 
     spin_lock_init(&priv->m4_lock);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)
     sema_init(&priv->ba_mutex, 1);
-#else
-    init_MUTEX(&priv->ba_mutex);
-#endif
 
 #if (defined(CSR_WIFI_SECURITY_WAPI_ENABLE) && defined(CSR_WIFI_SECURITY_WAPI_SW_ENCRYPTION))
     spin_lock_init(&priv->wapi_lock);
@@ -487,16 +351,8 @@ uf_alloc_netdevice(CsrSdioFunction *sdio_dev, int bus_id)
 #endif
 #endif
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
-    /* Register the qdisc operations */
-    register_qdisc(&uf_qdisc_ops);
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
     priv->ref_count = 1;
 
-
     priv->amp_client = NULL;
     priv->coredump_mode = 0;
     priv->ptest_mode = 0;
@@ -566,7 +422,7 @@ uf_alloc_netdevice_for_other_interfaces(unifi_priv_t *priv, u16 interfaceTag)
      * The RedHat 9 redhat-config-network tool doesn't recognise wlan* devices,
      * so use "eth*" (like other wireless extns drivers).
      */
-    UF_ALLOC_NETDEV(dev, sizeof(netInterface_priv_t), "%d", ether_setup, 1);
+    dev = alloc_etherdev_mq(sizeof(netInterface_priv_t), 1);
     if (dev == NULL) {
         return FALSE;
     }
@@ -589,19 +445,7 @@ uf_alloc_netdevice_for_other_interfaces(unifi_priv_t *priv, u16 interfaceTag)
     INIT_LIST_HEAD(&interfacePriv->rx_controlled_list);
 
     /* Setup / override net_device fields */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
     dev->netdev_ops = &uf_netdev_ops;
-#else
-    dev->open             = uf_net_open;
-    dev->stop             = uf_net_stop;
-    dev->hard_start_xmit  = uf_net_xmit;
-    dev->do_ioctl         = uf_net_ioctl;
-
-    /* called by /proc/net/dev */
-    dev->get_stats = uf_net_get_stats;
-
-    dev->set_multicast_list = uf_set_multicast_list;
-#endif
 
 #ifdef CSR_SUPPORT_WEXT
     dev->wireless_handlers = &unifi_iw_handler_def;
@@ -686,13 +530,6 @@ uf_free_netdevice(unifi_priv_t *priv)
     spin_unlock_irqrestore(&priv->wapi_lock, flags);
 #endif
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
-    /* Unregister the qdisc operations */
-    unregister_qdisc(&uf_qdisc_ops);
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
 #ifdef CSR_SUPPORT_WEXT
     /* Unregister callback for netdevice state changes */
     unregister_netdevice_notifier(&uf_netdev_notifier);
@@ -700,10 +537,8 @@ uf_free_netdevice(unifi_priv_t *priv)
 
 #ifdef CSR_SUPPORT_SME
     /* Cancel work items and destroy the workqueue */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
     cancel_work_sync(&priv->multicast_list_task);
 #endif
-#endif
 /* Destroy the workqueues. */
     flush_workqueue(priv->unifi_workqueue);
     destroy_workqueue(priv->unifi_workqueue);
@@ -778,7 +613,7 @@ uf_net_open(struct net_device *dev)
     }
 #endif
 
-    UF_NETIF_TX_START_ALL_QUEUES(dev);
+    netif_tx_start_all_queues(dev);
 
     func_exit();
     return 0;
@@ -808,7 +643,7 @@ uf_net_stop(struct net_device *dev)
     func_enter();
 #endif
 
-    UF_NETIF_TX_STOP_ALL_QUEUES(dev);
+    netif_tx_stop_all_queues(dev);
 
     func_exit();
     return 0;
@@ -957,7 +792,6 @@ get_packet_priority(unifi_priv_t *priv, struct sk_buff *skb, const struct ethhdr
     return priority;
 }
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
 /*
  * ---------------------------------------------------------------------------
  *  uf_net_select_queue
@@ -1005,7 +839,6 @@ uf_net_select_queue(struct net_device *dev, struct sk_buff *skb)
     func_exit();
     return (u16)queue;
 } /* uf_net_select_queue() */
-#endif
 
 int
 skb_add_llc_snap(struct net_device *dev, struct sk_buff *skb, int proto)
@@ -1915,11 +1748,7 @@ send_ma_pkt_request(unifi_priv_t *priv, struct sk_buff *skb, const struct ethhdr
  *      The controlled port is handled in the qdisc dequeue handler.
  * ---------------------------------------------------------------------------
  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 static netdev_tx_t
-#else
-static int
-#endif
 uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
 {
     netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(dev);
@@ -1929,9 +1758,7 @@ uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
     int result;
     static tx_signal_handler tx_handler;
     CSR_PRIORITY priority;
-#if !defined (CONFIG_NET_SCHED) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
     CsrWifiRouterCtrlPortAction port_action;
-#endif /* CONFIG_NET_SCHED */
 
     func_enter();
 
@@ -1956,11 +1783,6 @@ uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
         port = UF_UNCONTROLLED_PORT_Q;
     }
 
-#if defined (CONFIG_NET_SCHED) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28))
-    /* Remove the ethernet header */
-    skb_pull(skb, ETH_HLEN);
-    result = tx_handler(priv, skb, &ehdr, priority);
-#else
     /* Uncontrolled port rules apply */
     port_action = verify_port(priv
         , (((CSR_WIFI_ROUTER_CTRL_MODE_STA == interfacePriv->interfaceMode)||(CSR_WIFI_ROUTER_CTRL_MODE_P2PCLI== interfacePriv->interfaceMode))? interfacePriv->bssid.a: ehdr.h_dest)
@@ -1986,7 +1808,6 @@ uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
         func_exit();
         return NETDEV_TX_OK;
     }
-#endif /* CONFIG_NET_SCHED */
 
     if (result == NETDEV_TX_OK) {
 #if (defined(CSR_WIFI_SECURITY_WAPI_ENABLE) && defined(CSR_WIFI_SECURITY_WAPI_SW_ENCRYPTION))
@@ -2059,7 +1880,6 @@ unifi_pause_xmit(void *ospriv, unifi_TrafficQueue queue)
     func_enter();
     unifi_trace(priv, UDBG2, "Stopping queue %d\n", queue);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
     for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
     {
         if (netif_running(priv->netdev[i]))
@@ -2067,24 +1887,6 @@ unifi_pause_xmit(void *ospriv, unifi_TrafficQueue queue)
             netif_stop_subqueue(priv->netdev[i], (u16)queue);
         }
     }
-#else
-#ifdef ALLOW_Q_PAUSE
-    unifi_trace(priv, UDBG2, "Stopping netif\n");
-    /* stop the traffic from all the interfaces. */
-    for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
-    {
-        if (netif_running(priv->netdev[i])) {
-            UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[i]);
-        }
-    }
-#else
-    if (net_is_tx_q_paused(priv, queue)) {
-        unifi_trace(priv, UDBG2, "Queue already stopped\n");
-        return;
-    }
-    net_tx_q_pause(priv, queue);
-#endif
-#endif
 
 #ifdef CSR_SUPPORT_SME
     if(queue<=3) {
@@ -2108,7 +1910,6 @@ unifi_restart_xmit(void *ospriv, unifi_TrafficQueue queue)
     func_enter();
     unifi_trace(priv, UDBG2, "Waking queue %d\n", queue);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
     for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
     {
         if (netif_running(priv->netdev[i]))
@@ -2116,25 +1917,6 @@ unifi_restart_xmit(void *ospriv, unifi_TrafficQueue queue)
             netif_wake_subqueue(priv->netdev[i], (u16)queue);
         }
     }
-#else
-#ifdef ALLOW_Q_PAUSE
-    /* Need to supply queue number depending on Kernel support */
-    /* Resume the traffic from all the interfaces */
-    for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
-    {
-        if (netif_running(priv->netdev[i])) {
-            UF_NETIF_TX_WAKE_ALL_QUEUES(priv->netdev[i]);
-        }
-    }
-#else
-    if (!(net_is_tx_q_paused(priv, queue))) {
-        unifi_trace(priv, UDBG2, "Queue already running\n");
-        func_exit();
-        return;
-    }
-    net_tx_q_unpause(priv, queue);
-#endif
-#endif
 
 #ifdef CSR_SUPPORT_SME
     if(queue <=3) {
@@ -2349,13 +2131,7 @@ uf_resume_data_plane(unifi_priv_t *priv, int queue,
     {
 #ifdef CONFIG_NET_SCHED
         if (netif_running(priv->netdev[interfaceTag])) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
             netif_tx_schedule_all(priv->netdev[interfaceTag]);
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-            netif_schedule_queue(netdev_get_tx_queue(priv->netdev[interfaceTag], 0));
-#else
-            netif_schedule(priv->netdev[interfaceTag]);
-#endif /* LINUX_VERSION_CODE */
         }
 #endif
         uf_process_rx_pending_queue(priv, queue, peer_address, 1,interfaceTag);
@@ -2998,19 +2774,13 @@ uf_set_multicast_list(struct net_device *dev)
 #else
 
     u8 *mc_list = interfacePriv->mc_list;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,34)
     struct netdev_hw_addr *mc_addr;
     int mc_addr_count;
-#else
-    struct dev_mc_list *p;      /* Pointer to the addresses structure. */
-    int i;
-#endif
 
     if (priv->init_progress != UNIFI_INIT_COMPLETED) {
         return;
     }
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,34)
     mc_addr_count = netdev_mc_count(dev);
 
     unifi_trace(priv, UDBG3,
@@ -3029,25 +2799,6 @@ uf_set_multicast_list(struct net_device *dev)
         mc_list += ETH_ALEN;
     }
 
-#else
-    unifi_trace(priv, UDBG3,
-            "uf_set_multicast_list (count=%d)\n", dev->mc_count);
-
-    /* Not enough space? */
-    if (dev->mc_count > UNIFI_MAX_MULTICAST_ADDRESSES) {
-        return;
-    }
-
-    /* Store the list to be processed by the work item. */
-    interfacePriv->mc_list_count = dev->mc_count;
-    p = dev->mc_list;
-    for (i = 0; i < dev->mc_count; i++) {
-        memcpy(mc_list, p->dmi_addr, ETH_ALEN);
-        p = p->next;
-        mc_list += ETH_ALEN;
-    }
-#endif
-
     /* Send a message to the workqueue */
     queue_work(priv->unifi_workqueue, &priv->multicast_list_task);
 #endif
@@ -3181,375 +2932,6 @@ void uf_net_get_name(struct net_device *dev, char *name, int len)
 
 } /* uf_net_get_name */
 
-
-
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
-
-/*
- * ---------------------------------------------------------------------------
- *  uf_install_qdisc
- *
- *      Creates a root qdisc, registers our qdisc handlers and
- *      overrides the device's qdisc_sleeping to prevent the system
- *      from creating a new one for our network device.
- *
- *  Arguments:
- *      dev             Pointer to the network device.
- *
- *  Returns:
- *      0 on success, Linux error code otherwise.
- *
- *  Notes:
- *      This function holds the qdisk lock so it needs to be called
- *      after registering the network device in uf_register_netdev().
- *      Also, the qdisc_create_dflt() API has changed in 2.6.20 to
- *      include the parentid.
- * ---------------------------------------------------------------------------
- */
-int uf_install_qdisc(struct net_device *dev)
-{
-    struct Qdisc *qdisc;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-    struct netdev_queue *queue0;
-#endif /* LINUX_VERSION_CODE */
-
-
-    func_enter();
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
-    /*
-     * check that there is no qdisc currently attached to device
-     * this ensures that we will be the root qdisc. (I can't find a better
-     * way to test this explicitly)
-     */
-    if (dev->qdisc_sleeping != &noop_qdisc) {
-        func_exit_r(-EFAULT);
-        return -EINVAL;
-    }
-#endif /* LINUX_VERSION_CODE */
-
-    qdisc = UF_QDISC_CREATE_DFLT(dev, &uf_qdisc_ops, TC_H_ROOT);
-    if (!qdisc) {
-        unifi_error(NULL, "%s: qdisc installation failed\n", dev->name);
-        func_exit_r(-EFAULT);
-        return -EFAULT;
-    }
-    unifi_trace(NULL, UDBG5, "%s: parent qdisc=0x%p\n",
-            dev->name, qdisc);
-
-    qdisc->handle = 0x80020000;
-    qdisc->flags = 0x0;
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-    queue0 = netdev_get_tx_queue(dev, 0);
-    if (queue0 == NULL) {
-        unifi_error(NULL, "%s: netdev_get_tx_queue returned no queue\n",
-                dev->name);
-        func_exit_r(-EFAULT);
-        return -EFAULT;
-    }
-    queue0->qdisc = qdisc;
-    queue0->qdisc_sleeping = qdisc;
-#else
-    qdisc_lock_tree(dev);
-    list_add_tail(&qdisc->list, &dev->qdisc_list);
-    dev->qdisc_sleeping = qdisc;
-    qdisc_unlock_tree(dev);
-#endif /* LINUX_VERSION_CODE */
-
-    func_exit_r(0);
-    return 0;
-
-} /* uf_install_qdisc() */
-
-static int uf_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(qd->dev_queue->dev);
-#else
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(qd->dev);
-#endif /* LINUX_VERSION_CODE */
-    unifi_priv_t *priv = interfacePriv->privPtr;
-    struct uf_sched_data *q = qdisc_priv(qd);
-    struct uf_tx_packet_data *pkt_data = (struct uf_tx_packet_data *) skb->cb;
-    struct ethhdr ehdr;
-    struct Qdisc *qdisc;
-    int r, proto;
-
-    func_enter();
-
-    memcpy(&ehdr, skb->data, ETH_HLEN);
-    proto = ntohs(ehdr.h_proto);
-
-    /* 802.1x - apply controlled/uncontrolled port rules */
-    if ((proto != ETH_P_PAE)
-#ifdef CSR_WIFI_SECURITY_WAPI_ENABLE
-            && (proto != ETH_P_WAI)
-#endif
-       ) {
-        /* queues 0 - 3 */
-        pkt_data->priority = get_packet_priority(priv, skb, &ehdr, interfacePriv);
-        pkt_data->queue = unifi_frame_priority_to_queue(pkt_data->priority);
-    } else {
-        pkt_data->queue = UNIFI_TRAFFIC_Q_EAPOL;
-    }
-
-    qdisc = q->queues[pkt_data->queue];
-    r = qdisc->enqueue(skb, qdisc);
-    if (r == NET_XMIT_SUCCESS) {
-        qd->q.qlen++;
-        qd->bstats.bytes += skb->len;
-        qd->bstats.packets++;
-        func_exit_r(NET_XMIT_SUCCESS);
-        return NET_XMIT_SUCCESS;
-    }
-
-    unifi_error(priv, "uf_qdiscop_enqueue: dropped\n");
-    qd->qstats.drops++;
-
-    func_exit_r(r);
-    return r;
-
-} /* uf_qdiscop_enqueue() */
-
-
-static int uf_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t*)netdev_priv(qd->dev_queue->dev);
-#else
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t*)netdev_priv(qd->dev);
-#endif /* LINUX_VERSION_CODE */
-    unifi_priv_t *priv = interfacePriv->privPtr;
-    struct uf_sched_data *q = qdisc_priv(qd);
-    struct uf_tx_packet_data *pkt_data = (struct uf_tx_packet_data *) skb->cb;
-    struct Qdisc *qdisc;
-    int r;
-
-    func_enter();
-
-    unifi_trace(priv, UDBG5, "uf_qdiscop_requeue: (q=%d), tag=%u\n",
-            pkt_data->queue, pkt_data->host_tag);
-
-    /* we recorded which queue to use earlier! */
-    qdisc = q->queues[pkt_data->queue];
-
-    if ((r = qdisc->ops->requeue(skb, qdisc)) == 0) {
-        qd->q.qlen++;
-        func_exit_r(0);
-        return 0;
-    }
-
-    unifi_error(priv, "uf_qdiscop_requeue: dropped\n");
-    qd->qstats.drops++;
-
-    func_exit_r(r);
-    return r;
-} /* uf_qdiscop_requeue() */
-
-static struct sk_buff *uf_qdiscop_dequeue(struct Qdisc* qd)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(qd->dev_queue->dev);
-#else
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(qd->dev);
-#endif /* LINUX_VERSION_CODE */
-    unifi_priv_t *priv = interfacePriv->privPtr;
-    struct uf_sched_data *q = qdisc_priv(qd);
-    struct sk_buff *skb;
-    struct Qdisc *qdisc;
-    int queue, i;
-    struct ethhdr ehdr;
-    struct uf_tx_packet_data *pkt_data;
-    CsrWifiRouterCtrlPortAction port_action;
-
-    func_enter();
-
-    /* check all the queues */
-    for (i = UNIFI_TRAFFIC_Q_MAX - 1; i >= 0; i--) {
-
-        if (i != UNIFI_TRAFFIC_Q_EAPOL) {
-            queue = priv->prev_queue;
-            if (++priv->prev_queue >= UNIFI_TRAFFIC_Q_EAPOL) {
-                priv->prev_queue = 0;
-            }
-        } else {
-            queue = i;
-        }
-
-#ifndef ALLOW_Q_PAUSE
-        /* If queue is paused, do not dequeue */
-        if (net_is_tx_q_paused(priv, queue)) {
-            unifi_trace(priv, UDBG5,
-                    "uf_qdiscop_dequeue: tx queue paused (q=%d)\n", queue);
-            continue;
-        }
-#endif
-
-        qdisc = q->queues[queue];
-        skb = qdisc->dequeue(qdisc);
-        if (skb) {
-            /* A packet has been dequeued, decrease the queued packets count */
-            qd->q.qlen--;
-
-            pkt_data = (struct uf_tx_packet_data *) skb->cb;
-
-            /* Check the (un)controlled port status */
-            memcpy(&ehdr, skb->data, ETH_HLEN);
-
-            port_action = verify_port(priv
-                            , (((CSR_WIFI_ROUTER_CTRL_MODE_STA == interfacePriv->interfaceMode) ||(CSR_WIFI_ROUTER_CTRL_MODE_P2PCLI == interfacePriv->interfaceMode))? interfacePriv->bssid.a: ehdr.h_dest)
-                            , (UNIFI_TRAFFIC_Q_EAPOL == queue? UF_UNCONTROLLED_PORT_Q: UF_CONTROLLED_PORT_Q)
-                            , interfacePriv->InterfaceTag);
-
-            /* Dequeue packet if port is open */
-            if (port_action == CSR_WIFI_ROUTER_CTRL_PORT_ACTION_8021X_PORT_OPEN) {
-                unifi_trace(priv, UDBG5,
-                        "uf_qdiscop_dequeue: new (q=%d), tag=%u\n",
-                        queue, pkt_data->host_tag);
-
-                func_exit();
-                return skb;
-            }
-
-            /* Discard or block the packet if necessary */
-            if (port_action == CSR_WIFI_ROUTER_CTRL_PORT_ACTION_8021X_PORT_CLOSED_DISCARD) {
-                unifi_trace(priv, UDBG5,
-                        "uf_qdiscop_dequeue: drop (q=%d), tag=%u\n",
-                        queue, pkt_data->host_tag);
-                kfree_skb(skb);
-                break;
-            }
-
-            /* We can not send the packet now, put it back to the queue */
-            if (qdisc->ops->requeue(skb, qdisc) != 0) {
-                unifi_error(priv,
-                        "uf_qdiscop_dequeue: requeue (q=%d) failed, tag=%u, drop it\n",
-                        queue, pkt_data->host_tag);
-
-                /* Requeue failed, drop the packet */
-                kfree_skb(skb);
-                break;
-            }
-            /* We requeued the packet, increase the queued packets count */
-            qd->q.qlen++;
-
-            unifi_trace(priv, UDBG5,
-                    "uf_qdiscop_dequeue: skip (q=%d), tag=%u\n",
-                    queue, pkt_data->host_tag);
-        }
-    }
-
-    func_exit();
-    return NULL;
-} /* uf_qdiscop_dequeue() */
-
-
-static void uf_qdiscop_reset(struct Qdisc* qd)
-{
-    struct uf_sched_data *q = qdisc_priv(qd);
-    int queue;
-    func_enter();
-
-    for (queue = 0; queue < UNIFI_TRAFFIC_Q_MAX; queue++) {
-        qdisc_reset(q->queues[queue]);
-    }
-    qd->q.qlen = 0;
-
-    func_exit();
-} /* uf_qdiscop_reset() */
-
-
-static void uf_qdiscop_destroy(struct Qdisc* qd)
-{
-    struct uf_sched_data *q = qdisc_priv(qd);
-    int queue;
-
-    func_enter();
-
-    for (queue=0; queue < UNIFI_TRAFFIC_Q_MAX; queue++) {
-        qdisc_destroy(q->queues[queue]);
-        q->queues[queue] = &noop_qdisc;
-    }
-
-    func_exit();
-} /* uf_qdiscop_destroy() */
-
-
-/* called whenever parameters are updated on existing qdisc */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
-static int uf_qdiscop_tune(struct Qdisc *qd, struct nlattr *opt)
-#else
-static int uf_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
-#endif
-{
-    func_enter();
-    func_exit();
-    return 0;
-} /* uf_qdiscop_tune() */
-
-
-/* called during initial creation of qdisc on device */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
-static int uf_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
-#else
-static int uf_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
-#endif
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-    struct net_device *dev = qd->dev_queue->dev;
-#else
-    struct net_device *dev = qd->dev;
-#endif /* LINUX_VERSION_CODE */
-    netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(dev);
-    unifi_priv_t *priv = interfacePriv->privPtr;
-    struct uf_sched_data *q = qdisc_priv(qd);
-    int err = 0, i;
-
-    func_enter();
-
-    /* make sure we do not mess with the ingress qdisc */
-    if (qd->flags & TCQ_F_INGRESS) {
-        func_exit();
-        return -EINVAL;
-    }
-
-    /* if options were passed in, set them */
-    if (opt) {
-        err = uf_qdiscop_tune(qd, opt);
-    }
-
-    /* create child queues */
-    for (i = 0; i < UNIFI_TRAFFIC_Q_MAX; i++) {
-        q->queues[i] = UF_QDISC_CREATE_DFLT(dev, &pfifo_qdisc_ops,
-                qd->handle);
-        if (!q->queues[i]) {
-            q->queues[i] = &noop_qdisc;
-            unifi_error(priv, "%s child qdisc %i creation failed\n");
-        }
-
-        unifi_trace(priv, UDBG5, "%s: child qdisc=0x%p\n",
-                dev->name, q->queues[i]);
-    }
-
-    func_exit_r(err);
-    return err;
-} /* uf_qdiscop_init() */
-
-
-static int uf_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
-{
-    func_enter();
-    func_exit_r(skb->len);
-    return skb->len;
-} /* uf_qdiscop_dump() */
-
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
 #ifdef CSR_SUPPORT_WEXT
 
 /*
@@ -3595,7 +2977,7 @@ uf_netdev_event(struct notifier_block *notif, unsigned long event, void* ptr) {
                     interfacePriv->wait_netdev_change ? "" : "not");
 
         if (interfacePriv->wait_netdev_change) {
-            UF_NETIF_TX_WAKE_ALL_QUEUES(priv->netdev[interfacePriv->InterfaceTag]);
+            netif_tx_wake_all_queues(priv->netdev[interfacePriv->InterfaceTag]);
             interfacePriv->connected = UnifiConnected;
             interfacePriv->wait_netdev_change = FALSE;
             /* Note: passing the broadcast address here will allow anyone to attempt to join our adhoc network */
diff --git a/drivers/staging/csr/sdio_events.c b/drivers/staging/csr/sdio_events.c
index 6892c2e281b..2a80b9eb020 100644
--- a/drivers/staging/csr/sdio_events.c
+++ b/drivers/staging/csr/sdio_events.c
@@ -66,7 +66,7 @@ void unifi_suspend(void *ospriv)
                 unifi_trace(priv, UDBG1, "unifi_suspend: netif_carrier_off");
                 netif_carrier_off(priv->netdev[interfaceTag]);
             }
-            UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[interfaceTag]);
+            netif_tx_stop_all_queues(priv->netdev[interfaceTag]);
         }
     }
 
@@ -119,7 +119,7 @@ void unifi_resume(void *ospriv)
             if (interfacePriv->netdev_registered == 1)
             {
                 netif_carrier_on(priv->netdev[interfaceTag]);
-                UF_NETIF_TX_START_ALL_QUEUES(priv->netdev[interfaceTag]);
+                netif_tx_start_all_queues(priv->netdev[interfaceTag]);
             }
         }
 
diff --git a/drivers/staging/csr/sdio_mmc.c b/drivers/staging/csr/sdio_mmc.c
index d3fd57cdde0..af3e40bb501 100644
--- a/drivers/staging/csr/sdio_mmc.c
+++ b/drivers/staging/csr/sdio_mmc.c
@@ -14,7 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/mutex.h>
 #include <linux/gfp.h>
-
+#include <linux/version.h>
 #include <linux/mmc/core.h>
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -31,7 +31,6 @@ struct wake_lock unifi_sdio_wake_lock; /* wakelock to prevent suspend while resu
 
 static CsrSdioFunctionDriver *sdio_func_drv;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 #ifdef CONFIG_PM
 static int uf_sdio_mmc_power_event(struct notifier_block *this, unsigned long event, void *ptr);
 #endif
@@ -45,7 +44,6 @@ static int uf_sdio_mmc_power_event(struct notifier_block *this, unsigned long ev
  * returning immediately (at least on x86).
  */
 static int card_is_powered = 1;
-#endif /* 2.6.32 */
 
 /* MMC uses ENOMEDIUM to indicate card gone away */
 
@@ -637,7 +635,6 @@ CsrSdioFunctionIdle(CsrSdioFunction *function)
 CsrResult
 CsrSdioPowerOn(CsrSdioFunction *function)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
     struct sdio_func *func = (struct sdio_func *)function->priv;
     struct mmc_host *host = func->card->host;
 
@@ -649,7 +646,6 @@ CsrSdioPowerOn(CsrSdioFunction *function)
         printk(KERN_INFO "SDIO: Skip power on; card is already powered.\n");
     }
     _sdio_release_host(func);
-#endif /* 2.6.32 */
 
     return CSR_RESULT_SUCCESS;
 } /* CsrSdioPowerOn() */
@@ -667,7 +663,6 @@ CsrSdioPowerOn(CsrSdioFunction *function)
 void
 CsrSdioPowerOff(CsrSdioFunction *function)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
     struct sdio_func *func = (struct sdio_func *)function->priv;
     struct mmc_host *host = func->card->host;
 
@@ -679,7 +674,6 @@ CsrSdioPowerOff(CsrSdioFunction *function)
         printk(KERN_INFO "SDIO: Skip power off; card is already powered off.\n");
     }
     _sdio_release_host(func);
-#endif /* 2.6.32 */
 } /* CsrSdioPowerOff() */
 
 
@@ -845,19 +839,18 @@ uf_glue_sdio_int_handler(struct sdio_func *func)
  *      Status of the removal.
  * ---------------------------------------------------------------------------
  */
-int
-csr_sdio_linux_remove_irq(CsrSdioFunction *function)
+int csr_sdio_linux_remove_irq(CsrSdioFunction *function)
 {
-    struct sdio_func *func = (struct sdio_func *)function->priv;
-    int r;
+	struct sdio_func *func = (struct sdio_func *)function->priv;
+	int r;
 
-    unifi_trace(NULL, UDBG1, "csr_sdio_linux_remove_irq\n");
+	unifi_trace(NULL, UDBG1, "csr_sdio_linux_remove_irq\n");
 
-    sdio_claim_host(func);
-    r = sdio_release_irq(func);
-    sdio_release_host(func);
+	sdio_claim_host(func);
+	r = sdio_release_irq(func);
+	sdio_release_host(func);
 
-    return r;
+	return r;
 
 } /* csr_sdio_linux_remove_irq() */
 
@@ -876,28 +869,25 @@ csr_sdio_linux_remove_irq(CsrSdioFunction *function)
  *      Status of the removal.
  * ---------------------------------------------------------------------------
  */
-int
-csr_sdio_linux_install_irq(CsrSdioFunction *function)
+int csr_sdio_linux_install_irq(CsrSdioFunction *function)
 {
-    struct sdio_func *func = (struct sdio_func *)function->priv;
-    int r;
+	struct sdio_func *func = (struct sdio_func *)function->priv;
+	int r;
 
-    unifi_trace(NULL, UDBG1, "csr_sdio_linux_install_irq\n");
+	unifi_trace(NULL, UDBG1, "csr_sdio_linux_install_irq\n");
 
-    /* Register our interrupt handle */
-    sdio_claim_host(func);
-    r = sdio_claim_irq(func, uf_glue_sdio_int_handler);
-    sdio_release_host(func);
+	/* Register our interrupt handle */
+	sdio_claim_host(func);
+	r = sdio_claim_irq(func, uf_glue_sdio_int_handler);
+	sdio_release_host(func);
 
-    /* If the interrupt was installed earlier, is fine */
-    if (r == -EBUSY) {
-        r = 0;
-    }
+	/* If the interrupt was installed earlier, is fine */
+	if (r == -EBUSY)
+		r = 0;
 
-    return r;
+	return r;
 } /* csr_sdio_linux_install_irq() */
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 #ifdef CONFIG_PM
 
 /*
@@ -1023,7 +1013,6 @@ uf_sdio_mmc_power_event(struct notifier_block *this, unsigned long event, void *
 }
 
 #endif /* CONFIG_PM */
-#endif /* 2.6.32 */
 
 /*
  * ---------------------------------------------------------------------------
@@ -1050,10 +1039,8 @@ uf_glue_sdio_probe(struct sdio_func *func,
     /* First of all claim the SDIO driver */
     sdio_claim_host(func);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
     /* Assume that the card is already powered */
     card_is_powered = 1;
-#endif
 
     /* Assumes one card per host, which is true for SDIO */
     instance = func->card->host->index;
@@ -1093,14 +1080,12 @@ uf_glue_sdio_probe(struct sdio_func *func,
     /* Pass context to the SDIO driver */
     sdio_set_drvdata(func, sdio_ctx);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 #ifdef CONFIG_PM
     /* Register to get PM events */
     if (uf_sdio_mmc_register_pm_notifier(sdio_ctx) == NULL) {
         unifi_error(NULL, "%s: Failed to register for PM events\n", __FUNCTION__);
     }
 #endif
-#endif
 
     /* Register this device with the SDIO function driver */
     /* Call the main UniFi driver inserted handler */
@@ -1156,12 +1141,10 @@ uf_glue_sdio_remove(struct sdio_func *func)
         sdio_func_drv->removed(sdio_ctx);
     }
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 #ifdef CONFIG_PM
     /* Unregister for PM events */
     uf_sdio_mmc_unregister_pm_notifier(sdio_ctx);
 #endif
-#endif
 
     kfree(sdio_ctx);
 
@@ -1182,7 +1165,6 @@ static const struct sdio_device_id unifi_ids[] = {
 
 MODULE_DEVICE_TABLE(sdio, unifi_ids);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 #ifdef CONFIG_PM
 
 /*
@@ -1252,16 +1234,13 @@ static struct dev_pm_ops unifi_pm_ops = {
 #define UNIFI_PM_OPS  NULL
 
 #endif /* CONFIG_PM */
-#endif /* 2.6.32 */
 
 static struct sdio_driver unifi_driver = {
     .probe      = uf_glue_sdio_probe,
     .remove     = uf_glue_sdio_remove,
     .name       = "unifi",
     .id_table	= unifi_ids,
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
     .drv.pm     = UNIFI_PM_OPS,
-#endif /* 2.6.32 */
 };
 
 
@@ -1305,12 +1284,10 @@ CsrSdioFunctionDriverRegister(CsrSdioFunctionDriver *sdio_drv)
      */
     sdio_func_drv = sdio_drv;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 #ifdef CONFIG_PM
     /* Initialise PM notifier list */
     INIT_LIST_HEAD(&uf_sdio_mmc_pm_notifiers.list);
 #endif
-#endif
 
     /* Register ourself with mmc_core */
     r = sdio_register_driver(&unifi_driver);
diff --git a/drivers/staging/csr/sme_blocking.c b/drivers/staging/csr/sme_blocking.c
index acf0f0fe3b3..543e8f2c407 100644
--- a/drivers/staging/csr/sme_blocking.c
+++ b/drivers/staging/csr/sme_blocking.c
@@ -18,10 +18,10 @@
 
 
 /*
- * This file also contains the implementation of the asyncronous
+ * This file also contains the implementation of the asynchronous
  * requests to the SME.
  *
- * Before calling an asyncronous SME function, we call sme_init_request()
+ * Before calling an asynchronous SME function, we call sme_init_request()
  * which gets hold of the SME semaphore and updates the request status.
  * The semaphore makes sure that there is only one pending request to
  * the SME at a time.
diff --git a/drivers/staging/csr/sme_native.c b/drivers/staging/csr/sme_native.c
index 229268fd746..d7a5125d9a8 100644
--- a/drivers/staging/csr/sme_native.c
+++ b/drivers/staging/csr/sme_native.c
@@ -12,7 +12,7 @@
  */
 
 #include <linux/netdevice.h>
-
+#include <linux/version.h>
 #include "unifi_priv.h"
 #include "csr_wifi_hip_unifi.h"
 #include "csr_wifi_hip_conversions.h"
@@ -24,11 +24,7 @@ uf_sme_init(unifi_priv_t *priv)
 {
     func_enter();
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)
     sema_init(&priv->mlme_blocking_mutex, 1);
-#else
-    init_MUTEX(&priv->mlme_blocking_mutex);
-#endif
 
 #ifdef CSR_SUPPORT_WEXT
     {
diff --git a/drivers/staging/csr/sme_sys.c b/drivers/staging/csr/sme_sys.c
index 99de27e678d..5b26c41c01f 100644
--- a/drivers/staging/csr/sme_sys.c
+++ b/drivers/staging/csr/sme_sys.c
@@ -14,6 +14,7 @@
  * ---------------------------------------------------------------------------
  */
 
+#include <linux/version.h>
 #include "csr_wifi_hip_unifiversion.h"
 #include "unifi_priv.h"
 #include "csr_wifi_hip_conversions.h"
@@ -21,7 +22,6 @@
 #include "csr_wifi_sme_sef.h"
 #endif
 
-
 /*
  * This file implements the SME SYS API and contains the following functions:
  * CsrWifiRouterCtrlMediaStatusReqHandler()
@@ -192,7 +192,7 @@ void CsrWifiRouterCtrlMediaStatusReqHandler(void* drvpriv, CsrWifiFsmEvent* msg)
 #endif
                     unifi_trace(priv, UDBG1,
                                 "CsrWifiRouterCtrlMediaStatusReqHandler: AP/P2PGO setting netif_carrier_on\n");
-                    UF_NETIF_TX_WAKE_ALL_QUEUES(priv->netdev[req->interfaceTag]);
+                    netif_tx_wake_all_queues(priv->netdev[req->interfaceTag]);
                     break;
 
                 default:
@@ -226,7 +226,7 @@ void CsrWifiRouterCtrlMediaStatusReqHandler(void* drvpriv, CsrWifiFsmEvent* msg)
                     unifi_trace(priv, UDBG1,
                                 "CsrWifiRouterMediaStatusReqHandler: UnifiConnected && netif_carrier_on\n");
                     netif_carrier_on(priv->netdev[req->interfaceTag]);
-                    UF_NETIF_TX_WAKE_ALL_QUEUES(priv->netdev[req->interfaceTag]);
+                    netif_tx_wake_all_queues(priv->netdev[req->interfaceTag]);
                     uf_process_rx_pending_queue(priv, UF_UNCONTROLLED_PORT_Q, broadcast_address, 1, interfacePriv->InterfaceTag);
                     uf_process_rx_pending_queue(priv, UF_CONTROLLED_PORT_Q, broadcast_address, 1, interfacePriv->InterfaceTag);
                 }
@@ -869,7 +869,6 @@ wifi_off(unifi_priv_t *priv)
     unifi_trace(priv, UDBG1, "wifi_off\n");
 
     /* Destroy the Traffic Analysis Module */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
     cancel_work_sync(&priv->ta_ind_work.task);
     cancel_work_sync(&priv->ta_sample_ind_work.task);
 #ifdef CSR_SUPPORT_WEXT
@@ -884,7 +883,6 @@ wifi_off(unifi_priv_t *priv)
             cancel_work_sync(&netpriv->send_m4_ready_task);
         }
     }
-#endif
     flush_workqueue(priv->unifi_workqueue);
 
     /* fw_init parameter can prevent power off UniFi, for debugging */
@@ -955,7 +953,7 @@ void CsrWifiRouterCtrlWifiOffReqHandler(void* drvpriv, CsrWifiFsmEvent* msg)
         netInterface_priv_t *interfacePriv = priv->interfacePriv[i];
         if (interfacePriv->netdev_registered == 1) {
             netif_carrier_off(priv->netdev[i]);
-            UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[i]);
+            netif_tx_stop_all_queues(priv->netdev[i]);
             interfacePriv->connected = UnifiConnectedUnknown;
         }
         interfacePriv->interfaceMode = 0;
@@ -2123,7 +2121,7 @@ static int peer_add_new_record(unifi_priv_t *priv,CsrWifiRouterCtrlPeerAddReq *r
             /* Allocate for the new station record , to avoid race condition would happen between ADD_PEER &
              * DEL_PEER the allocation made atomic memory rather than kernel memory
              */
-            newRecord = (CsrWifiRouterCtrlStaInfo_t *) kmalloc(sizeof(CsrWifiRouterCtrlStaInfo_t), GFP_ATOMIC);
+            newRecord = kmalloc(sizeof(CsrWifiRouterCtrlStaInfo_t), GFP_ATOMIC);
             if (!newRecord) {
                 unifi_error(priv, "failed to allocate the %d bytes of mem for station record\n",
                             sizeof(CsrWifiRouterCtrlStaInfo_t));
@@ -2815,12 +2813,11 @@ u8 blockack_session_start(unifi_priv_t *priv,
         }
 
         /* create and populate the new BA session structure */
-        ba_session_tx = kmalloc(sizeof(ba_session_tx_struct), GFP_KERNEL);
+        ba_session_tx = kzalloc(sizeof(ba_session_tx_struct), GFP_KERNEL);
         if (!ba_session_tx) {
             unifi_error(priv, "%s: kmalloc failed for ba_session_tx\n", __FUNCTION__);
             return FALSE;
         }
-        memset(ba_session_tx, 0, sizeof(ba_session_tx_struct));
 
         ba_session_tx->interfacePriv = interfacePriv;
         ba_session_tx->tID = tID;
@@ -2905,26 +2902,23 @@ u8 blockack_session_start(unifi_priv_t *priv,
             return FALSE;
         }
 
-        ba_session_rx = kmalloc(sizeof(ba_session_rx_struct), GFP_KERNEL);
+        ba_session_rx = kzalloc(sizeof(ba_session_rx_struct), GFP_KERNEL);
         if (!ba_session_rx) {
             unifi_error(priv, "%s: kmalloc failed for ba_session_rx\n", __FUNCTION__);
             return FALSE;
         }
-        memset(ba_session_rx, 0, sizeof(ba_session_rx_struct));
 
         ba_session_rx->wind_size = wind_size;
         ba_session_rx->start_sn = ba_session_rx->expected_sn = start_sn;
         ba_session_rx->trigger_ba_after_ssn = FALSE;
 
-        ba_session_rx->buffer = kmalloc(ba_session_rx->wind_size*sizeof(frame_desc_struct), GFP_KERNEL);
+        ba_session_rx->buffer = kzalloc(ba_session_rx->wind_size*sizeof(frame_desc_struct), GFP_KERNEL);
         if (!ba_session_rx->buffer) {
             kfree(ba_session_rx);
             unifi_error(priv, "%s: kmalloc failed for buffer\n", __FUNCTION__);
             return FALSE;
         }
 
-        memset(ba_session_rx->buffer, 0, ba_session_rx->wind_size*sizeof(frame_desc_struct));
-
         INIT_WORK(&ba_session_rx->send_ba_err_task, uf_send_ba_err_wq);
         if (timeout) {
             ba_session_rx->timeout = timeout;
diff --git a/drivers/staging/csr/sme_wext.c b/drivers/staging/csr/sme_wext.c
index 7e85907e29a..b58c0c6b171 100644
--- a/drivers/staging/csr/sme_wext.c
+++ b/drivers/staging/csr/sme_wext.c
@@ -1191,8 +1191,6 @@ unifi_siwap(struct net_device *dev, struct iw_request_info *info,
     netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(dev);
     unifi_priv_t *priv = interfacePriv->privPtr;
     int err = 0;
-    const unsigned char zero_bssid[ETH_ALEN] = {0x00, 0x00, 0x00,
-        0x00, 0x00, 0x00};
 
     func_enter();
 
@@ -1213,7 +1211,7 @@ unifi_siwap(struct net_device *dev, struct iw_request_info *info,
 	unifi_trace(priv, UDBG1, "unifi_siwap: asked for %pM\n",
 		wrqu->ap_addr.sa_data);
 
-    if (!memcmp(wrqu->ap_addr.sa_data, zero_bssid, ETH_ALEN)) {
+    if (is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
         priv->ignore_bssid_join = FALSE;
         err = sme_mgt_disconnect(priv);
         if (err) {
@@ -3043,8 +3041,8 @@ _unifi_siwencodeext(struct net_device *dev, struct iw_request_info *info,
     memcpy(sme_key.address.a, ext->addr.sa_data, ETH_ALEN);
     if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 
-        unifi_trace(priv, UDBG5, "RSC first 6 bytes = %02X:%02X:%02X:%02X:%02X:%02X\n",
-                    ext->rx_seq[0], ext->rx_seq[1], ext->rx_seq[2], ext->rx_seq[3], ext->rx_seq[4], ext->rx_seq[5]);
+		unifi_trace(priv, UDBG5, "RSC first 6 bytes = %*phC\n",
+					 6, ext->rx_seq);
 
         /* memcpy((u8*)(&sme_key.keyRsc), ext->rx_seq, 8); */
         sme_key.keyRsc[0] = ext->rx_seq[1] << 8 | ext->rx_seq[0];
diff --git a/drivers/staging/csr/ul_int.c b/drivers/staging/csr/ul_int.c
index 46d3507fd8f..4013d021ebb 100644
--- a/drivers/staging/csr/ul_int.c
+++ b/drivers/staging/csr/ul_int.c
@@ -12,6 +12,7 @@
  *
  * ***************************************************************************
  */
+#include <linux/version.h>
 #include "csr_wifi_hip_unifi.h"
 #include "csr_wifi_hip_conversions.h"
 #include "unifi_priv.h"
@@ -44,11 +45,7 @@ ul_init_clients(unifi_priv_t *priv)
     int id;
     ul_client_t *ul_clients;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)
     sema_init(&priv->udi_logging_mutex, 1);
-#else
-    init_MUTEX(&priv->udi_logging_mutex);
-#endif
     priv->logging_client = NULL;
 
     ul_clients = priv->ul_clients;
diff --git a/drivers/staging/csr/unifi_pdu_processing.c b/drivers/staging/csr/unifi_pdu_processing.c
index 7c7e8d49ae4..ae7c8fc9409 100644
--- a/drivers/staging/csr/unifi_pdu_processing.c
+++ b/drivers/staging/csr/unifi_pdu_processing.c
@@ -14,7 +14,7 @@
  * ---------------------------------------------------------------------------
  */
 
-
+#include <linux/version.h>
 #include <linux/types.h>
 #include <linux/etherdevice.h>
 #include <linux/vmalloc.h>
@@ -23,9 +23,6 @@
 #include "csr_wifi_hip_conversions.h"
 #include "csr_time.h"
 #include "unifi_priv.h"
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
-#include <net/iw_handler.h>
-#endif
 #include <net/pkt_sched.h>
 
 #ifdef CSR_SUPPORT_SME
diff --git a/drivers/staging/csr/unifi_priv.h b/drivers/staging/csr/unifi_priv.h
index 6d6b46191a1..aec8e28fb60 100644
--- a/drivers/staging/csr/unifi_priv.h
+++ b/drivers/staging/csr/unifi_priv.h
@@ -29,9 +29,7 @@
 #include <linux/wireless.h>
 #include <linux/cdev.h>
 #include <linux/kthread.h>
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
 #include <linux/freezer.h>
-#endif
 
 #ifdef CSR_WIFI_SUPPORT_MMC_DRIVER
 #include <linux/mmc/core.h>
@@ -73,33 +71,6 @@ extern struct wake_lock unifi_sdio_wake_lock;
 
 #include "unifi_clients.h"
 
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-#include <linux/workqueue.h>
-
-#undef INIT_WORK
-#define INIT_WORK(_work, _func)                                         \
-    do {                                                                \
-        INIT_LIST_HEAD(&(_work)->entry);                                \
-        (_work)->pending = 0;                                           \
-        PREPARE_WORK((_work), (_func), (_work));                        \
-        init_timer(&(_work)->timer);                                    \
-    } while(0)
-
-#endif  /* Linux kernel < 2.6.20 */
-
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-#define UF_NETIF_TX_WAKE_ALL_QUEUES(_netdev)    netif_tx_wake_all_queues(_netdev)
-#define UF_NETIF_TX_START_ALL_QUEUES(_netdev)   netif_tx_start_all_queues(_netdev)
-#define UF_NETIF_TX_STOP_ALL_QUEUES(_netdev)    netif_tx_stop_all_queues(_netdev)
-#else
-#define UF_NETIF_TX_WAKE_ALL_QUEUES(_netdev)    netif_wake_queue(_netdev)
-#define UF_NETIF_TX_START_ALL_QUEUES(_netdev)   netif_start_queue(_netdev)
-#define UF_NETIF_TX_STOP_ALL_QUEUES(_netdev)    netif_stop_queue(_netdev)
-#endif  /* Linux kernel >= 2.6.27 */
-
-
 #ifdef CSR_NATIVE_LINUX
 #include "sme_native/unifi_native.h"
 #else
@@ -634,12 +605,10 @@ struct unifi_priv {
     spinlock_t wapi_lock;
 #endif
 
-#ifndef ALLOW_Q_PAUSE
     /* Array to indicate if a particular Tx queue is paused, this may not be
      * required in a multiqueue implementation since we can directly stop kernel
      * queues */
     u8 tx_q_paused_flag[UNIFI_TRAFFIC_Q_MAX];
-#endif
 
 #ifdef CSR_WIFI_RX_PATH_SPLIT
     struct workqueue_struct *rx_workqueue;
@@ -798,12 +767,6 @@ typedef struct netInterface_priv
     u8 bcTimSetReqQueued;
 } netInterface_priv_t;
 
-#ifndef ALLOW_Q_PAUSE
-#define net_is_tx_q_paused(priv, q)   (priv->tx_q_paused_flag[q])
-#define net_tx_q_unpause(priv, q)   (priv->tx_q_paused_flag[q] = 0)
-#define net_tx_q_pause(priv, q)   (priv->tx_q_paused_flag[q] = 1)
-#endif
-
 #ifdef CSR_SUPPORT_SME
 #define routerStartBuffering(priv,queue) priv->routerBufferEnable[(queue)] = TRUE;
 #define routerStopBuffering(priv,queue) priv->routerBufferEnable[(queue)]  = FALSE;
@@ -1088,9 +1051,6 @@ CsrWifiRouterCtrlStaInfo_t * CsrWifiRouterCtrlGetStationRecordFromHandle(unifi_p
 void uf_update_sta_activity(unifi_priv_t *priv, u16 interfaceTag, const u8 *peerMacAddress);
 void uf_process_ma_pkt_cfm_for_ap(unifi_priv_t *priv,u16 interfaceTag, const CSR_MA_PACKET_CONFIRM *pkt_cfm);
 #endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-int uf_install_qdisc(struct net_device *dev);
-#endif
 
 void uf_resume_data_plane(unifi_priv_t *priv, int queue,
                           CsrWifiMacAddress peer_address,
diff --git a/drivers/staging/csr/unifi_wext.h b/drivers/staging/csr/unifi_wext.h
index 6d7a9959508..6834c43abfb 100644
--- a/drivers/staging/csr/unifi_wext.h
+++ b/drivers/staging/csr/unifi_wext.h
@@ -16,6 +16,7 @@
 #define __LINUX_UNIFI_WEXT_H__ 1
 
 #include <linux/kernel.h>
+#include <linux/version.h>
 #include <net/iw_handler.h>
 #include "csr_wifi_sme_prim.h"
 
@@ -70,15 +71,9 @@ uf_iwe_stream_add_point(struct iw_request_info *info, char *start, char *stop,
 {
     char *new_start;
 
-    new_start = iwe_stream_add_point(
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) || defined (IW_REQUEST_FLAG_COMPAT)
-                                     info,
-#endif
-                                     start, stop, piwe, extra);
+    new_start = iwe_stream_add_point(info, start, stop, piwe, extra);
     if (unlikely(new_start == start))
-    {
         return -E2BIG;
-    }
 
     return (new_start - start);
 }
@@ -90,14 +85,9 @@ uf_iwe_stream_add_event(struct iw_request_info *info, char *start, char *stop,
 {
     char *new_start;
 
-    new_start = iwe_stream_add_event(
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) || defined(IW_REQUEST_FLAG_COMPAT)
-                                     info,
-#endif
-                                     start, stop, piwe, len);
-    if (unlikely(new_start == start)) {
+    new_start = iwe_stream_add_event(info, start, stop, piwe, len);
+    if (unlikely(new_start == start))
         return -E2BIG;
-    }
 
     return (new_start - start);
 }
@@ -108,14 +98,9 @@ uf_iwe_stream_add_value(struct iw_request_info *info, char *stream, char *start,
 {
     char *new_start;
 
-    new_start = iwe_stream_add_value(
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) || defined(IW_REQUEST_FLAG_COMPAT)
-                                     info,
-#endif
-                                     stream, start, stop, piwe, len);
-    if (unlikely(new_start == start)) {
+    new_start = iwe_stream_add_value(info, stream, start, stop, piwe, len);
+    if (unlikely(new_start == start))
         return -E2BIG;
-    }
 
     return (new_start - start);
 }
diff --git a/drivers/staging/csr/wext_events.c b/drivers/staging/csr/wext_events.c
index d356887ac4c..9860ea30da2 100644
--- a/drivers/staging/csr/wext_events.c
+++ b/drivers/staging/csr/wext_events.c
@@ -194,11 +194,9 @@ _send_michaelmicfailure_event(struct net_device *dev,
     union iwreq_data wrqu;
     char buf[128];
 
-    sprintf(buf,
-            "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr=%02x:%02x:%02x:%02x:%02x:%02x)",
-            key_idx, (key_type == CSR_GROUP) ? "broad" : "uni",
-            macaddr[0], macaddr[1], macaddr[2],
-            macaddr[3], macaddr[4], macaddr[5]);
+	sprintf(buf,
+		"MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr=%pM)",
+		key_idx, (key_type == CSR_GROUP) ? "broad" : "uni", macaddr);
     memset(&wrqu, 0, sizeof(wrqu));
     wrqu.data.length = strlen(buf);
     wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
diff --git a/drivers/staging/cxt1e1/linux.c b/drivers/staging/cxt1e1/linux.c
index 911c0e4375f..0ff2865edec 100644
--- a/drivers/staging/cxt1e1/linux.c
+++ b/drivers/staging/cxt1e1/linux.c
@@ -405,7 +405,7 @@ c4_linux_xmit (struct sk_buff * skb, struct net_device * ndev)
     priv = hdlc->priv;
 
     rval = musycc_start_xmit (priv->ci, priv->channum, skb);
-    return -rval;
+    return rval;
 }
 
 static const struct net_device_ops chan_ops = {
@@ -1169,11 +1169,11 @@ cleanup_hdlc (void)
 STATIC void __exit
 c4_mod_remove (void)
 {
-    cleanup_hdlc ();            /* delete any missed channels */
-    cleanup_devs ();
-    c4_cleanup ();
-    cleanup_ioremap ();
-    pr_info("SBE - driver removed.\n");
+	cleanup_hdlc();            /* delete any missed channels */
+	cleanup_devs();
+	c4_cleanup();
+	cleanup_ioremap();
+	pr_info("SBE - driver removed.\n");
 }
 
 module_init (c4_mod_init);
diff --git a/drivers/staging/cxt1e1/musycc.c b/drivers/staging/cxt1e1/musycc.c
index 90c0f1e30f6..ba721c60406 100644
--- a/drivers/staging/cxt1e1/musycc.c
+++ b/drivers/staging/cxt1e1/musycc.c
@@ -1761,15 +1761,15 @@ musycc_start_xmit (ci_t * ci, int channum, void *mem_token)
     u_int32_t   len;
 
     if (!(ch = sd_find_chan (ci, channum)))
-        return ENOENT;
+        return -ENOENT;
 
     if (ci->state != C_RUNNING)     /* full interrupt processing available */
-        return EINVAL;
+        return -EINVAL;
     if (ch->state != UP)
-        return EINVAL;
+        return -EINVAL;
 
     if (!(ch->status & TX_ENABLED))
-        return EROFS;               /* how else to flag unwritable state ? */
+        return -EROFS;               /* how else to flag unwritable state ? */
 
 #ifdef RLD_TRANS_DEBUGx
     if (1 || cxt1e1_log_level >= LOG_MONITOR2)
@@ -1836,7 +1836,7 @@ musycc_start_xmit (ci_t * ci, int channum, void *mem_token)
 #if 0
         spin_unlock_irqrestore (&ch->ch_txlock, flags);
 #endif
-        return EBUSY;               /* tell user to try again later */
+        return -EBUSY;               /* tell user to try again later */
     }
     /**************************************************/
     /** Put the user data into MUSYCC data buffer(s) **/
diff --git a/drivers/staging/dgrp/Kconfig b/drivers/staging/dgrp/Kconfig
new file mode 100644
index 00000000000..39f4bb65ec8
--- /dev/null
+++ b/drivers/staging/dgrp/Kconfig
@@ -0,0 +1,9 @@
+config DGRP
+       tristate "Digi Realport driver"
+       default n
+       depends on SYSFS
+       ---help---
+       Support for Digi Realport devices.  These devices allow you to
+       access remote serial ports as if they are local tty devices.  This
+       will build the kernel driver, you will still need the userspace
+       component to make your Realport device work.
diff --git a/drivers/staging/dgrp/Makefile b/drivers/staging/dgrp/Makefile
new file mode 100644
index 00000000000..d9c3b88d716
--- /dev/null
+++ b/drivers/staging/dgrp/Makefile
@@ -0,0 +1,12 @@
+obj-$(CONFIG_DGRP) += dgrp.o
+
+dgrp-y := 			\
+	dgrp_common.o 		\
+	dgrp_dpa_ops.o 		\
+	dgrp_driver.o 		\
+	dgrp_mon_ops.o 	 	\
+	dgrp_net_ops.o 		\
+	dgrp_ports_ops.o 	\
+	dgrp_specproc.o 	\
+	dgrp_tty.o 		\
+	dgrp_sysfs.o
diff --git a/drivers/staging/dgrp/README b/drivers/staging/dgrp/README
new file mode 100644
index 00000000000..1d8aaee270e
--- /dev/null
+++ b/drivers/staging/dgrp/README
@@ -0,0 +1,2 @@
+The user space code to work with this driver is located at
+https://github.com/wfp5p/dgrp-utils
diff --git a/drivers/staging/dgrp/TODO b/drivers/staging/dgrp/TODO
new file mode 100644
index 00000000000..3ef2611bc6d
--- /dev/null
+++ b/drivers/staging/dgrp/TODO
@@ -0,0 +1,13 @@
+- Use configfs for config stuff.  This will require changes to the
+  user space code.
+
+- dgrp_send() and dgrp_receive() could use some refactoring
+
+- Don't automatically create CHAN_MAX (64) channel array entries for
+  every device as many devices are going to have much less than 64
+  channels.
+
+- The locking needs to be checked.  It seems haphazardly done in most
+  places.
+
+- Check Kconfig dependencies
diff --git a/drivers/staging/dgrp/dgrp_common.c b/drivers/staging/dgrp/dgrp_common.c
new file mode 100644
index 00000000000..fce74e7fb83
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_common.c
@@ -0,0 +1,200 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     James Puzzo <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_common.c
+ *
+ *  Description:
+ *
+ *     Definitions of global variables and functions which are either
+ *     shared by the tty, mon, and net drivers; or which cross them
+ *     functionally (like the poller).
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include <linux/cred.h>
+
+#include "dgrp_common.h"
+
+/**
+ * dgrp_carrier -- check for carrier change state and act
+ * @ch: struct ch_struct *
+ */
+void dgrp_carrier(struct ch_struct *ch)
+{
+	struct nd_struct *nd;
+
+	int virt_carrier = 0;
+	int phys_carrier = 0;
+
+	/* fix case when the tty has already closed. */
+
+	if (!ch)
+		return;
+	nd  = ch->ch_nd;
+	if (!nd)
+		return;
+
+	/*
+	 *  If we are currently waiting to determine the status of the port,
+	 *  we don't yet know the state of the modem lines.  As a result,
+	 *  we ignore state changes when we are waiting for the modem lines
+	 *  to be established.  We know, as a result of code in dgrp_net_ops,
+	 *  that we will be called again immediately following the reception
+	 *  of the status message with the true modem status flags in it.
+	 */
+	if (ch->ch_expect & RR_STATUS)
+		return;
+
+	/*
+	 * If CH_HANGUP is set, we gotta keep trying to get all the processes
+	 * that have the port open to close the port.
+	 * So lets just keep sending a hangup every time we get here.
+	 */
+	if ((ch->ch_flag & CH_HANGUP) &&
+	    (ch->ch_tun.un_open_count > 0))
+		tty_hangup(ch->ch_tun.un_tty);
+
+	/*
+	 *  Compute the effective state of both the physical and virtual
+	 *  senses of carrier.
+	 */
+
+	if (ch->ch_s_mlast & DM_CD)
+		phys_carrier = 1;
+
+	if ((ch->ch_s_mlast & DM_CD) ||
+	    (ch->ch_digi.digi_flags & DIGI_FORCEDCD) ||
+	    (ch->ch_flag & CH_CLOCAL))
+		virt_carrier = 1;
+
+	/*
+	 *  Test for a VIRTUAL carrier transition to HIGH.
+	 *
+	 *  The CH_HANGUP condition is intended to prevent any action
+	 *  except for close.  As a result, we ignore positive carrier
+	 *  transitions during CH_HANGUP.
+	 */
+	if (((ch->ch_flag & CH_HANGUP)  == 0) &&
+	    ((ch->ch_flag & CH_VIRT_CD) == 0) &&
+	    (virt_carrier == 1)) {
+		/*
+		 * When carrier rises, wake any threads waiting
+		 * for carrier in the open routine.
+		 */
+		nd->nd_tx_work = 1;
+
+		if (waitqueue_active(&ch->ch_flag_wait))
+			wake_up_interruptible(&ch->ch_flag_wait);
+	}
+
+	/*
+	 *  Test for a PHYSICAL transition to low, so long as we aren't
+	 *  currently ignoring physical transitions (which is what "virtual
+	 *  carrier" indicates).
+	 *
+	 *  The transition of the virtual carrier to low really doesn't
+	 *  matter... it really only means "ignore carrier state", not
+	 *  "make pretend that carrier is there".
+	 */
+	if ((virt_carrier == 0) &&
+	    ((ch->ch_flag & CH_PHYS_CD) != 0) &&
+	    (phys_carrier == 0)) {
+		/*
+		 * When carrier drops:
+		 *
+		 *   Do a Hard Hangup if that is called for.
+		 *
+		 *   Drop carrier on all open units.
+		 *
+		 *   Flush queues, waking up any task waiting in the
+		 *   line discipline.
+		 *
+		 *   Send a hangup to the control terminal.
+		 *
+		 *   Enable all select calls.
+		 */
+
+		nd->nd_tx_work = 1;
+
+		ch->ch_flag &= ~(CH_LOW | CH_EMPTY | CH_DRAIN | CH_INPUT);
+
+		if (waitqueue_active(&ch->ch_flag_wait))
+			wake_up_interruptible(&ch->ch_flag_wait);
+
+		if (ch->ch_tun.un_open_count > 0)
+			tty_hangup(ch->ch_tun.un_tty);
+
+		if (ch->ch_pun.un_open_count > 0)
+			tty_hangup(ch->ch_pun.un_tty);
+	}
+
+	/*
+	 *  Make sure that our cached values reflect the current reality.
+	 */
+	if (virt_carrier == 1)
+		ch->ch_flag |= CH_VIRT_CD;
+	else
+		ch->ch_flag &= ~CH_VIRT_CD;
+
+	if (phys_carrier == 1)
+		ch->ch_flag |= CH_PHYS_CD;
+	else
+		ch->ch_flag &= ~CH_PHYS_CD;
+
+}
+
+/**
+ * dgrp_chk_perm() -- check permissions for net device
+ * @inode: pointer to inode structure for the net communication device
+ * @op: operation to be tested
+ *
+ * The file permissions and ownerships are tested to determine whether
+ * the operation "op" is permitted on the file pointed to by the inode.
+ * Returns 0 if the operation is permitted, -EACCESS otherwise
+ */
+int dgrp_chk_perm(int mode, int op)
+{
+	if (!current_euid())
+		mode >>= 6;
+	else if (in_egroup_p(0))
+		mode >>= 3;
+
+	if ((mode & op & 0007) == op)
+		return 0;
+
+	if (capable(CAP_SYS_ADMIN))
+		return 0;
+
+	return -EACCES;
+}
+
+/* dgrp_chk_perm wrapper for permission call in struct inode_operations */
+int dgrp_inode_permission(struct inode *inode, int op)
+{
+	return dgrp_chk_perm(inode->i_mode, op);
+}
diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h
new file mode 100644
index 00000000000..05ff338471a
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_common.h
@@ -0,0 +1,208 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     James Puzzo <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+#ifndef __DGRP_COMMON_H
+#define __DGRP_COMMON_H
+
+#define DIGI_VERSION "1.9-29"
+
+#include <linux/fs.h>
+#include <linux/timer.h>
+#include "drp.h"
+
+#define DGRP_TTIME 100
+#define DGRP_RTIME 100
+
+/************************************************************************
+ * All global storage allocation.
+ ************************************************************************/
+
+extern int dgrp_rawreadok;  /* Allow raw writing of input */
+extern int dgrp_register_cudevices; /* enable legacy cu devices */
+extern int dgrp_register_prdevices; /* enable transparent print devices */
+extern int dgrp_poll_tick;          /* Poll interval - in ms */
+
+extern struct list_head nd_struct_list;
+
+struct dgrp_poll_data {
+	spinlock_t poll_lock;
+	struct timer_list timer;
+	int poll_tick;
+	ulong poll_round;	/* Timer rouding factor */
+	long node_active_count;
+};
+
+extern struct dgrp_poll_data dgrp_poll_data;
+extern void dgrp_poll_handler(unsigned long arg);
+
+/* from dgrp_mon_ops.c */
+extern void dgrp_register_mon_hook(struct proc_dir_entry *de);
+
+/* from dgrp_tty.c */
+extern int dgrp_tty_init(struct nd_struct *nd);
+extern void dgrp_tty_uninit(struct nd_struct *nd);
+
+/* from dgrp_ports_ops.c */
+extern void dgrp_register_ports_hook(struct proc_dir_entry *de);
+
+/* from dgrp_net_ops.c */
+extern void dgrp_register_net_hook(struct proc_dir_entry *de);
+
+/* from dgrp_dpa_ops.c */
+extern void dgrp_register_dpa_hook(struct proc_dir_entry *de);
+extern void dgrp_dpa_data(struct nd_struct *, int, u8 *, int);
+
+/* from dgrp_sysfs.c */
+extern void dgrp_create_class_sysfs_files(void);
+extern void dgrp_remove_class_sysfs_files(void);
+
+extern void dgrp_create_node_class_sysfs_files(struct nd_struct *nd);
+extern void dgrp_remove_node_class_sysfs_files(struct nd_struct *nd);
+
+extern void dgrp_create_tty_sysfs(struct un_struct *un, struct device *c);
+extern void dgrp_remove_tty_sysfs(struct device *c);
+
+/* from dgrp_specproc.c */
+/*
+ *  The list of DGRP entries with r/w capabilities.  These
+ *  magic numbers are used for identification purposes.
+ */
+enum {
+	DGRP_CONFIG = 1,	/* Configure portservers */
+	DGRP_NETDIR = 2,	/* Directory for "net" devices */
+	DGRP_MONDIR = 3,	/* Directory for "mon" devices */
+	DGRP_PORTSDIR = 4,	/* Directory for "ports" devices */
+	DGRP_INFO = 5,		/* Get info. about the running module */
+	DGRP_NODEINFO = 6,	/* Get info. about the configured nodes */
+	DGRP_DPADIR = 7,	/* Directory for the "dpa" devices */
+};
+
+/*
+ *  Directions for proc handlers
+ */
+enum {
+	INBOUND = 1,		/* Data being written to kernel */
+	OUTBOUND = 2,		/* Data being read from the kernel */
+};
+
+/**
+ * dgrp_proc_entry: structure for dgrp proc dirs
+ * @id: ID number associated with this particular entry.  Should be
+ *    unique across all of DGRP.
+ * @name: text name associated with the /proc entry
+ * @mode: file access permisssions for the /proc entry
+ * @child: pointer to table describing a subdirectory for this entry
+ * @de: pointer to directory entry for this object once registered.  Used
+ *    to grab the handle of the object for unregistration
+ * @excl_sem: semaphore to provide exclusive to struct
+ * @excl_cnt: counter of current accesses
+ *
+ *  Each entry in a DGRP proc directory is described with a
+ *  dgrp_proc_entry structure.  A collection of these
+ *  entries (in an array) represents the members associated
+ *  with a particular /proc directory, and is referred to
+ *  as a table.  All tables are terminated by an entry with
+ *  zeros for every member.
+ */
+struct dgrp_proc_entry {
+	int                  id;          /* Integer identifier */
+	const char        *name;          /* ASCII identifier */
+	mode_t             mode;          /* File access permissions */
+	struct dgrp_proc_entry *child;    /* Child pointer */
+
+	/* file ops to use, pass NULL to use default */
+	struct file_operations *proc_file_ops;
+
+	struct proc_dir_entry *de;        /* proc entry pointer */
+	struct semaphore   excl_sem;      /* Protects exclusive access var */
+	int                excl_cnt;      /* Counts number of curr accesses */
+};
+
+extern void dgrp_unregister_proc(void);
+extern void dgrp_register_proc(void);
+
+/*-----------------------------------------------------------------------*
+ *
+ *  Declarations for common operations:
+ *
+ *      (either used by more than one of net, mon, or tty,
+ *       or in interrupt context (i.e. the poller))
+ *
+ *-----------------------------------------------------------------------*/
+
+void dgrp_carrier(struct ch_struct *ch);
+extern int dgrp_inode_permission(struct inode *inode, int op);
+extern int dgrp_chk_perm(int mode, int op);
+
+
+/*
+ *  ID manipulation macros (where c1 & c2 are characters, i is
+ *  a long integer, and s is a character array of at least three members
+ */
+
+static inline void ID_TO_CHAR(long i, char *s)
+{
+	s[0] = ((i & 0xff00)>>8);
+	s[1] = (i & 0xff);
+	s[2] = 0;
+}
+
+static inline long CHAR_TO_ID(char *s)
+{
+	return ((s[0] & 0xff) << 8) | (s[1] & 0xff);
+}
+
+static inline struct nd_struct *nd_struct_get(long major)
+{
+	struct nd_struct *nd;
+
+	list_for_each_entry(nd, &nd_struct_list, list) {
+		if (major == nd->nd_major)
+			return nd;
+	}
+
+	return NULL;
+}
+
+static inline int nd_struct_add(struct nd_struct *entry)
+{
+	struct nd_struct *ptr;
+
+	ptr = nd_struct_get(entry->nd_major);
+
+	if (ptr)
+		return -EBUSY;
+
+	list_add_tail(&entry->list, &nd_struct_list);
+
+	return 0;
+}
+
+static inline int nd_struct_del(struct nd_struct *entry)
+{
+	struct nd_struct *nd;
+
+	nd = nd_struct_get(entry->nd_major);
+
+	if (!nd)
+		return -ENODEV;
+
+	list_del(&nd->list);
+	return 0;
+}
+
+#endif /* __DGRP_COMMON_H */
diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c
new file mode 100644
index 00000000000..49e670915e5
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_dpa_ops.c
@@ -0,0 +1,556 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     James Puzzo <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_dpa_ops.c
+ *
+ *  Description:
+ *
+ *     Handle the file operations required for the "dpa" devices.
+ *     Includes those functions required to register the "dpa" devices
+ *     in "/proc".
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/tty.h>
+#include <linux/poll.h>
+#include <linux/cred.h>
+#include <linux/sched.h>
+#include <linux/ratelimit.h>
+#include <asm/unaligned.h>
+
+#include "dgrp_common.h"
+
+/* File operation declarations */
+static int dgrp_dpa_open(struct inode *, struct file *);
+static int dgrp_dpa_release(struct inode *, struct file *);
+static ssize_t dgrp_dpa_read(struct file *, char __user *, size_t, loff_t *);
+static long dgrp_dpa_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg);
+static unsigned int dgrp_dpa_select(struct file *, struct poll_table_struct *);
+
+static const struct file_operations dpa_ops = {
+	.owner   =  THIS_MODULE,
+	.read    =  dgrp_dpa_read,
+	.poll    =  dgrp_dpa_select,
+	.unlocked_ioctl =  dgrp_dpa_ioctl,
+	.open    =  dgrp_dpa_open,
+	.release =  dgrp_dpa_release,
+};
+
+static struct inode_operations dpa_inode_ops = {
+	.permission = dgrp_inode_permission
+};
+
+
+
+struct digi_node {
+	uint	nd_state;		/* Node state: 1 = up, 0 = down. */
+	uint	nd_chan_count;		/* Number of channels found */
+	uint	nd_tx_byte;		/* Tx data count */
+	uint	nd_rx_byte;		/* RX data count */
+	u8	nd_ps_desc[MAX_DESC_LEN]; /* Description from PS */
+};
+
+#define DIGI_GETNODE      (('d'<<8) | 249)	/* get board info */
+
+
+struct digi_chan {
+	uint	ch_port;	/* Port number to get info on */
+	uint	ch_open;	/* 1 if open, 0 if not */
+	uint	ch_txcount;	/* TX data count  */
+	uint	ch_rxcount;	/* RX data count  */
+	uint	ch_s_brate;	/* Realport BRATE */
+	uint	ch_s_estat;	/* Realport ELAST */
+	uint	ch_s_cflag;	/* Realport CFLAG */
+	uint	ch_s_iflag;	/* Realport IFLAG */
+	uint	ch_s_oflag;	/* Realport OFLAG */
+	uint	ch_s_xflag;	/* Realport XFLAG */
+	uint	ch_s_mstat;	/* Realport MLAST */
+};
+
+#define DIGI_GETCHAN      (('d'<<8) | 248)	/* get channel info */
+
+
+struct digi_vpd {
+	int vpd_len;
+	char vpd_data[VPDSIZE];
+};
+
+#define DIGI_GETVPD       (('d'<<8) | 246)	/* get VPD info */
+
+
+struct digi_debug {
+	int onoff;
+	int port;
+};
+
+#define DIGI_SETDEBUG      (('d'<<8) | 247)	/* set debug info */
+
+
+void dgrp_register_dpa_hook(struct proc_dir_entry *de)
+{
+	struct nd_struct *node = de->data;
+
+	de->proc_iops = &dpa_inode_ops;
+	de->proc_fops = &dpa_ops;
+
+	node->nd_dpa_de = de;
+	spin_lock_init(&node->nd_dpa_lock);
+}
+
+/*
+ * dgrp_dpa_open -- open the DPA device for a particular PortServer
+ */
+static int dgrp_dpa_open(struct inode *inode, struct file *file)
+{
+	struct nd_struct *nd;
+	int rtn = 0;
+
+	struct proc_dir_entry *de;
+
+	rtn = try_module_get(THIS_MODULE);
+	if (!rtn)
+		return -ENXIO;
+
+	rtn = 0;
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		rtn = -EPERM;
+		goto done;
+	}
+
+	/*
+	 *  Make sure that the "private_data" field hasn't already been used.
+	 */
+	if (file->private_data) {
+		rtn = -EINVAL;
+		goto done;
+	}
+
+	/*
+	 *  Get the node pointer, and fail if it doesn't exist.
+	 */
+	de = PDE(inode);
+	if (!de) {
+		rtn = -ENXIO;
+		goto done;
+	}
+	nd = (struct nd_struct *)de->data;
+	if (!nd) {
+		rtn = -ENXIO;
+		goto done;
+	}
+
+	file->private_data = (void *) nd;
+
+	/*
+	 * Allocate the DPA buffer.
+	 */
+
+	if (nd->nd_dpa_buf) {
+		rtn = -EBUSY;
+	} else {
+		nd->nd_dpa_buf = kmalloc(DPA_MAX, GFP_KERNEL);
+
+		if (!nd->nd_dpa_buf) {
+			rtn = -ENOMEM;
+		} else {
+			nd->nd_dpa_out = 0;
+			nd->nd_dpa_in = 0;
+			nd->nd_dpa_lbolt = jiffies;
+		}
+	}
+
+done:
+
+	if (rtn)
+		module_put(THIS_MODULE);
+	return rtn;
+}
+
+/*
+ * dgrp_dpa_release -- close the DPA device for a particular PortServer
+ */
+static int dgrp_dpa_release(struct inode *inode, struct file *file)
+{
+	struct nd_struct *nd;
+	u8 *buf;
+	unsigned long lock_flags;
+
+	/*
+	 *  Get the node pointer, and quit if it doesn't exist.
+	 */
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		goto done;
+
+	/*
+	 *  Free the dpa buffer.
+	 */
+
+	spin_lock_irqsave(&nd->nd_dpa_lock, lock_flags);
+
+	buf = nd->nd_dpa_buf;
+
+	nd->nd_dpa_buf = NULL;
+	nd->nd_dpa_out = nd->nd_dpa_in;
+
+	/*
+	 *  Wakeup any thread waiting for buffer space.
+	 */
+
+	if (nd->nd_dpa_flag & DPA_WAIT_SPACE) {
+		nd->nd_dpa_flag &= ~DPA_WAIT_SPACE;
+		wake_up_interruptible(&nd->nd_dpa_wqueue);
+	}
+
+	spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+
+	kfree(buf);
+
+done:
+	module_put(THIS_MODULE);
+	file->private_data = NULL;
+	return 0;
+}
+
+/*
+ * dgrp_dpa_read
+ *
+ * Copy data from the monitoring buffer to the user, freeing space
+ * in the monitoring buffer for more messages
+ */
+static ssize_t dgrp_dpa_read(struct file *file, char __user *buf, size_t count,
+			     loff_t *ppos)
+{
+	struct nd_struct *nd;
+	int n;
+	int r;
+	int offset = 0;
+	int res = 0;
+	ssize_t rtn;
+	unsigned long lock_flags;
+
+	/*
+	 *  Get the node pointer, and quit if it doesn't exist.
+	 */
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		return -ENXIO;
+
+	/*
+	 *  Wait for some data to appear in the buffer.
+	 */
+
+	spin_lock_irqsave(&nd->nd_dpa_lock, lock_flags);
+
+	for (;;) {
+		n = (nd->nd_dpa_in - nd->nd_dpa_out) & DPA_MASK;
+
+		if (n != 0)
+			break;
+
+		nd->nd_dpa_flag |= DPA_WAIT_DATA;
+
+		spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+
+		/*
+		 * Go to sleep waiting until the condition becomes true.
+		 */
+		rtn = wait_event_interruptible(nd->nd_dpa_wqueue,
+			((nd->nd_dpa_flag & DPA_WAIT_DATA) == 0));
+
+		if (rtn)
+			return rtn;
+
+		spin_lock_irqsave(&nd->nd_dpa_lock, lock_flags);
+	}
+
+	/*
+	 *  Read whatever is there.
+	 */
+
+	if (n > count)
+		n = count;
+
+	res = n;
+
+	r = DPA_MAX - nd->nd_dpa_out;
+
+	if (r <= n) {
+
+		spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+		rtn = copy_to_user((void __user *)buf,
+				   nd->nd_dpa_buf + nd->nd_dpa_out, r);
+		spin_lock_irqsave(&nd->nd_dpa_lock, lock_flags);
+
+		if (rtn) {
+			rtn = -EFAULT;
+			goto done;
+		}
+
+		nd->nd_dpa_out = 0;
+		n -= r;
+		offset = r;
+	}
+
+	spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+	rtn = copy_to_user((void __user *)buf + offset,
+			   nd->nd_dpa_buf + nd->nd_dpa_out, n);
+	spin_lock_irqsave(&nd->nd_dpa_lock, lock_flags);
+
+	if (rtn) {
+		rtn = -EFAULT;
+		goto done;
+	}
+
+	nd->nd_dpa_out += n;
+
+	*ppos += res;
+
+	rtn = res;
+
+	/*
+	 *  Wakeup any thread waiting for buffer space.
+	 */
+
+	n = (nd->nd_dpa_in - nd->nd_dpa_out) & DPA_MASK;
+
+	if (nd->nd_dpa_flag & DPA_WAIT_SPACE &&
+	    (DPA_MAX - n) > DPA_HIGH_WATER) {
+		nd->nd_dpa_flag &= ~DPA_WAIT_SPACE;
+		wake_up_interruptible(&nd->nd_dpa_wqueue);
+	}
+
+ done:
+	spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+	return rtn;
+}
+
+static unsigned int dgrp_dpa_select(struct file *file,
+				    struct poll_table_struct *table)
+{
+	unsigned int retval = 0;
+	struct nd_struct *nd = file->private_data;
+
+	if (nd->nd_dpa_out != nd->nd_dpa_in)
+		retval |= POLLIN | POLLRDNORM; /* Conditionally readable */
+
+	retval |= POLLOUT | POLLWRNORM;        /* Always writeable */
+
+	return retval;
+}
+
+static long dgrp_dpa_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg)
+{
+
+	struct nd_struct  *nd;
+	struct digi_chan getchan;
+	struct digi_node getnode;
+	struct ch_struct *ch;
+	struct digi_debug setdebug;
+	struct digi_vpd vpd;
+	unsigned int port;
+	void __user *uarg = (void __user *) arg;
+
+	nd = file->private_data;
+
+	switch (cmd) {
+	case DIGI_GETCHAN:
+		if (copy_from_user(&getchan, uarg, sizeof(struct digi_chan)))
+			return -EFAULT;
+
+		port = getchan.ch_port;
+
+		if (port < 0 || port > nd->nd_chan_count)
+			return -EINVAL;
+
+		ch = nd->nd_chan + port;
+
+		getchan.ch_open = (ch->ch_open_count > 0) ? 1 : 0;
+		getchan.ch_txcount = ch->ch_txcount;
+		getchan.ch_rxcount = ch->ch_rxcount;
+		getchan.ch_s_brate = ch->ch_s_brate;
+		getchan.ch_s_estat = ch->ch_s_elast;
+		getchan.ch_s_cflag = ch->ch_s_cflag;
+		getchan.ch_s_iflag = ch->ch_s_iflag;
+		getchan.ch_s_oflag = ch->ch_s_oflag;
+		getchan.ch_s_xflag = ch->ch_s_xflag;
+		getchan.ch_s_mstat = ch->ch_s_mlast;
+
+		if (copy_to_user(uarg, &getchan, sizeof(struct digi_chan)))
+			return -EFAULT;
+		break;
+
+
+	case DIGI_GETNODE:
+		getnode.nd_state = (nd->nd_state & NS_READY) ? 1 : 0;
+		getnode.nd_chan_count = nd->nd_chan_count;
+		getnode.nd_tx_byte = nd->nd_tx_byte;
+		getnode.nd_rx_byte = nd->nd_rx_byte;
+
+		memset(&getnode.nd_ps_desc, 0, MAX_DESC_LEN);
+		strncpy(getnode.nd_ps_desc, nd->nd_ps_desc, MAX_DESC_LEN);
+
+		if (copy_to_user(uarg, &getnode, sizeof(struct digi_node)))
+			return -EFAULT;
+		break;
+
+
+	case DIGI_SETDEBUG:
+		if (copy_from_user(&setdebug, uarg, sizeof(struct digi_debug)))
+			return -EFAULT;
+
+		nd->nd_dpa_debug = setdebug.onoff;
+		nd->nd_dpa_port = setdebug.port;
+		break;
+
+
+	case DIGI_GETVPD:
+		if (nd->nd_vpd_len > 0) {
+			vpd.vpd_len = nd->nd_vpd_len;
+			memcpy(&vpd.vpd_data, &nd->nd_vpd, nd->nd_vpd_len);
+		} else {
+			vpd.vpd_len = 0;
+		}
+
+		if (copy_to_user(uarg, &vpd, sizeof(struct digi_vpd)))
+			return -EFAULT;
+		break;
+	}
+
+	return 0;
+}
+
+/**
+ * dgrp_dpa() -- send data to the device monitor queue
+ * @nd: pointer to a node structure
+ * @buf: buffer of data to copy to the monitoring buffer
+ * @len: number of bytes to transfer to the buffer
+ *
+ * Called by the net device routines to send data to the device
+ * monitor queue.  If the device monitor buffer is too full to
+ * accept the data, it waits until the buffer is ready.
+ */
+static void dgrp_dpa(struct nd_struct *nd, u8 *buf, int nbuf)
+{
+	int n;
+	int r;
+	unsigned long lock_flags;
+
+	/*
+	 *  Grab DPA lock.
+	 */
+	spin_lock_irqsave(&nd->nd_dpa_lock, lock_flags);
+
+	/*
+	 *  Loop while data remains.
+	 */
+	while (nbuf > 0 && nd->nd_dpa_buf != NULL) {
+
+		n = (nd->nd_dpa_out - nd->nd_dpa_in - 1) & DPA_MASK;
+
+		/*
+		 * Enforce flow control on the DPA device.
+		 */
+		if (n < (DPA_MAX - DPA_HIGH_WATER))
+			nd->nd_dpa_flag |= DPA_WAIT_SPACE;
+
+		/*
+		 * This should never happen, as the flow control above
+		 * should have stopped things before they got to this point.
+		 */
+		if (n == 0) {
+			spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+			return;
+		}
+
+		/*
+		 * Copy as much data as will fit.
+		 */
+
+		if (n > nbuf)
+			n = nbuf;
+
+		r = DPA_MAX - nd->nd_dpa_in;
+
+		if (r <= n) {
+			memcpy(nd->nd_dpa_buf + nd->nd_dpa_in, buf, r);
+
+			n -= r;
+
+			nd->nd_dpa_in = 0;
+
+			buf += r;
+			nbuf -= r;
+		}
+
+		memcpy(nd->nd_dpa_buf + nd->nd_dpa_in, buf, n);
+
+		nd->nd_dpa_in += n;
+
+		buf += n;
+		nbuf -= n;
+
+		if (nd->nd_dpa_in >= DPA_MAX)
+			pr_info_ratelimited("%s - nd->nd_dpa_in (%i) >= DPA_MAX\n",
+					    __func__, nd->nd_dpa_in);
+
+		/*
+		 *  Wakeup any thread waiting for data
+		 */
+		if (nd->nd_dpa_flag & DPA_WAIT_DATA) {
+			nd->nd_dpa_flag &= ~DPA_WAIT_DATA;
+			wake_up_interruptible(&nd->nd_dpa_wqueue);
+		}
+	}
+
+	/*
+	 *  Release the DPA lock.
+	 */
+	spin_unlock_irqrestore(&nd->nd_dpa_lock, lock_flags);
+}
+
+/**
+ * dgrp_monitor_data() -- builds a DPA data packet
+ * @nd: pointer to a node structure
+ * @type: type of message to be logged in the DPA buffer
+ * @buf: buffer of data to be logged in the DPA buffer
+ * @size -- number of bytes in the "buf" buffer
+ */
+void dgrp_dpa_data(struct nd_struct *nd, int type, u8 *buf, int size)
+{
+	u8 header[5];
+
+	header[0] = type;
+
+	put_unaligned_be32(size, header + 1);
+
+	dgrp_dpa(nd, header, sizeof(header));
+	dgrp_dpa(nd, buf, size);
+}
diff --git a/drivers/staging/dgrp/dgrp_driver.c b/drivers/staging/dgrp/dgrp_driver.c
new file mode 100644
index 00000000000..6e4a0ebc074
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_driver.c
@@ -0,0 +1,110 @@
+/*
+ *
+ * Copyright 1999-2003 Digi International (www.digi.com)
+ *     Jeff Randall
+ *     James Puzzo  <jamesp at digi dot com>
+ *     Scott Kilau  <Scott_Kilau at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *	Driver specific includes
+ */
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/init.h>
+
+/*
+ *  PortServer includes
+ */
+#include "dgrp_common.h"
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Digi International, http://www.digi.com");
+MODULE_DESCRIPTION("RealPort driver for Digi's ethernet-based serial connectivity product line");
+MODULE_VERSION(DIGI_VERSION);
+
+struct list_head nd_struct_list;
+struct dgrp_poll_data dgrp_poll_data;
+
+int dgrp_rawreadok = 1;		/* Bypass flipbuf on input */
+int dgrp_register_cudevices = 1;/* Turn on/off registering legacy cu devices */
+int dgrp_register_prdevices = 1;/* Turn on/off registering transparent print */
+int dgrp_poll_tick = 20;	/* Poll interval - in ms */
+
+module_param_named(rawreadok, dgrp_rawreadok, int, 0644);
+MODULE_PARM_DESC(rawreadok, "Bypass flip buffers on input");
+
+module_param_named(register_cudevices, dgrp_register_cudevices, int, 0644);
+MODULE_PARM_DESC(register_cudevices, "Turn on/off registering legacy cu devices");
+
+module_param_named(register_prdevices, dgrp_register_prdevices, int, 0644);
+MODULE_PARM_DESC(register_prdevices, "Turn on/off registering transparent print devices");
+
+module_param_named(pollrate, dgrp_poll_tick, int, 0644);
+MODULE_PARM_DESC(pollrate, "Poll interval in ms");
+
+/* Driver load/unload functions */
+static int dgrp_init_module(void);
+static void dgrp_cleanup_module(void);
+
+module_init(dgrp_init_module);
+module_exit(dgrp_cleanup_module);
+
+/*
+ * init_module()
+ *
+ * Module load.  This is where it all starts.
+ */
+static int dgrp_init_module(void)
+{
+	INIT_LIST_HEAD(&nd_struct_list);
+
+	spin_lock_init(&dgrp_poll_data.poll_lock);
+	init_timer(&dgrp_poll_data.timer);
+	dgrp_poll_data.poll_tick = dgrp_poll_tick;
+	dgrp_poll_data.timer.function = dgrp_poll_handler;
+	dgrp_poll_data.timer.data = (unsigned long) &dgrp_poll_data;
+
+	dgrp_create_class_sysfs_files();
+
+	dgrp_register_proc();
+
+	return 0;
+}
+
+
+/*
+ *	Module unload.  This is where it all ends.
+ */
+static void dgrp_cleanup_module(void)
+{
+	struct nd_struct *nd, *next;
+
+	/*
+	 *	Attempting to free resources in backwards
+	 *	order of allocation, in case that helps
+	 *	memory pool fragmentation.
+	 */
+	dgrp_unregister_proc();
+
+	dgrp_remove_class_sysfs_files();
+
+
+	list_for_each_entry_safe(nd, next, &nd_struct_list, list) {
+		dgrp_tty_uninit(nd);
+		kfree(nd);
+	}
+}
diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c
new file mode 100644
index 00000000000..268dcb95204
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_mon_ops.c
@@ -0,0 +1,346 @@
+/*****************************************************************************
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     James Puzzo <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_mon_ops.c
+ *
+ *  Description:
+ *
+ *     Handle the file operations required for the "monitor" devices.
+ *     Includes those functions required to register the "mon" devices
+ *     in "/proc".
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include <asm/unaligned.h>
+#include <linux/proc_fs.h>
+
+#include "dgrp_common.h"
+
+/* File operation declarations */
+static int dgrp_mon_open(struct inode *, struct file *);
+static int dgrp_mon_release(struct inode *, struct file *);
+static ssize_t dgrp_mon_read(struct file *, char __user *, size_t, loff_t *);
+static long dgrp_mon_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg);
+
+static const struct file_operations mon_ops = {
+	.owner   = THIS_MODULE,
+	.read    = dgrp_mon_read,
+	.unlocked_ioctl = dgrp_mon_ioctl,
+	.open    = dgrp_mon_open,
+	.release = dgrp_mon_release,
+};
+
+static struct inode_operations mon_inode_ops = {
+	.permission = dgrp_inode_permission
+};
+
+void dgrp_register_mon_hook(struct proc_dir_entry *de)
+{
+	struct nd_struct *node = de->data;
+
+	de->proc_iops = &mon_inode_ops;
+	de->proc_fops = &mon_ops;
+	node->nd_mon_de = de;
+	sema_init(&node->nd_mon_semaphore, 1);
+}
+
+/**
+ * dgrp_mon_open() -- open /proc/dgrp/ports device for a PortServer
+ * @inode: struct inode *
+ * @file: struct file *
+ *
+ * Open function to open the /proc/dgrp/ports device for a PortServer.
+ */
+static int dgrp_mon_open(struct inode *inode, struct file *file)
+{
+	struct nd_struct *nd;
+	struct proc_dir_entry *de;
+	struct timeval tv;
+	uint32_t time;
+	u8 *buf;
+	int rtn;
+
+	rtn = try_module_get(THIS_MODULE);
+	if (!rtn)
+		return -ENXIO;
+
+	rtn = 0;
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		rtn = -EPERM;
+		goto done;
+	}
+
+	/*
+	 *  Make sure that the "private_data" field hasn't already been used.
+	 */
+	if (file->private_data) {
+		rtn = -EINVAL;
+		goto done;
+	}
+
+	/*
+	 *  Get the node pointer, and fail if it doesn't exist.
+	 */
+	de = PDE(inode);
+	if (!de) {
+		rtn = -ENXIO;
+		goto done;
+	}
+
+	nd = (struct nd_struct *)de->data;
+	if (!nd) {
+		rtn = -ENXIO;
+		goto done;
+	}
+
+	file->private_data = (void *) nd;
+
+	/*
+	 * Allocate the monitor buffer.
+	 */
+
+	/*
+	 *  Grab the MON lock.
+	 */
+	down(&nd->nd_mon_semaphore);
+
+	if (nd->nd_mon_buf) {
+		rtn = -EBUSY;
+		goto done_up;
+	}
+
+	nd->nd_mon_buf = kmalloc(MON_MAX, GFP_KERNEL);
+
+	if (!nd->nd_mon_buf) {
+		rtn = -ENOMEM;
+		goto done_up;
+	}
+
+	/*
+	 *  Enter an RPDUMP file header into the buffer.
+	 */
+
+	buf = nd->nd_mon_buf;
+
+	strcpy(buf, RPDUMP_MAGIC);
+	buf += strlen(buf) + 1;
+
+	do_gettimeofday(&tv);
+
+	/*
+	 *  tv.tv_sec might be a 64 bit quantity.  Pare
+	 *  it down to 32 bits before attempting to encode
+	 *  it.
+	 */
+	time = (uint32_t) (tv.tv_sec & 0xffffffff);
+
+	put_unaligned_be32(time, buf);
+	put_unaligned_be16(0, buf + 4);
+	buf += 6;
+
+	if (nd->nd_tx_module) {
+		buf[0] = RPDUMP_CLIENT;
+		put_unaligned_be32(0, buf + 1);
+		put_unaligned_be16(1, buf + 5);
+		buf[7] = 0xf0 + nd->nd_tx_module;
+		buf += 8;
+	}
+
+	if (nd->nd_rx_module) {
+		buf[0] = RPDUMP_SERVER;
+		put_unaligned_be32(0, buf + 1);
+		put_unaligned_be16(1, buf + 5);
+		buf[7] = 0xf0 + nd->nd_rx_module;
+		buf += 8;
+	}
+
+	nd->nd_mon_out = 0;
+	nd->nd_mon_in  = buf - nd->nd_mon_buf;
+	nd->nd_mon_lbolt = jiffies;
+
+done_up:
+	up(&nd->nd_mon_semaphore);
+
+done:
+	if (rtn)
+		module_put(THIS_MODULE);
+	return rtn;
+}
+
+
+/**
+ * dgrp_mon_release() - Close the MON device for a particular PortServer
+ * @inode: struct inode *
+ * @file: struct file *
+ */
+static int dgrp_mon_release(struct inode *inode, struct file *file)
+{
+	struct nd_struct *nd;
+
+	/*
+	 *  Get the node pointer, and quit if it doesn't exist.
+	 */
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		goto done;
+
+	/*
+	 *  Free the monitor buffer.
+	 */
+
+	down(&nd->nd_mon_semaphore);
+
+	kfree(nd->nd_mon_buf);
+	nd->nd_mon_buf = NULL;
+	nd->nd_mon_out = nd->nd_mon_in;
+
+	/*
+	 *  Wakeup any thread waiting for buffer space.
+	 */
+
+	if (nd->nd_mon_flag & MON_WAIT_SPACE) {
+		nd->nd_mon_flag &= ~MON_WAIT_SPACE;
+		wake_up_interruptible(&nd->nd_mon_wqueue);
+	}
+
+	up(&nd->nd_mon_semaphore);
+
+	/*
+	 *  Make sure there is no thread in the middle of writing a packet.
+	 */
+	down(&nd->nd_net_semaphore);
+	up(&nd->nd_net_semaphore);
+
+done:
+	module_put(THIS_MODULE);
+	file->private_data = NULL;
+	return 0;
+}
+
+/**
+ * dgrp_mon_read() -- Copy data from the monitoring buffer to the user
+ */
+static ssize_t dgrp_mon_read(struct file *file, char __user *buf, size_t count,
+			     loff_t *ppos)
+{
+	struct nd_struct *nd;
+	int r;
+	int offset = 0;
+	int res = 0;
+	ssize_t rtn;
+
+	/*
+	 *  Get the node pointer, and quit if it doesn't exist.
+	 */
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		return -ENXIO;
+
+	/*
+	 *  Wait for some data to appear in the buffer.
+	 */
+
+	down(&nd->nd_mon_semaphore);
+
+	for (;;) {
+		res = (nd->nd_mon_in - nd->nd_mon_out) & MON_MASK;
+
+		if (res)
+			break;
+
+		nd->nd_mon_flag |= MON_WAIT_DATA;
+
+		up(&nd->nd_mon_semaphore);
+
+		/*
+		 * Go to sleep waiting until the condition becomes true.
+		 */
+		rtn = wait_event_interruptible(nd->nd_mon_wqueue,
+					       ((nd->nd_mon_flag & MON_WAIT_DATA) == 0));
+
+		if (rtn)
+			return rtn;
+
+		down(&nd->nd_mon_semaphore);
+	}
+
+	/*
+	 *  Read whatever is there.
+	 */
+
+	if (res > count)
+		res = count;
+
+	r = MON_MAX - nd->nd_mon_out;
+
+	if (r <= res) {
+		rtn = copy_to_user((void __user *)buf,
+				   nd->nd_mon_buf + nd->nd_mon_out, r);
+		if (rtn) {
+			up(&nd->nd_mon_semaphore);
+			return -EFAULT;
+		}
+
+		nd->nd_mon_out = 0;
+		res -= r;
+		offset = r;
+	}
+
+	rtn = copy_to_user((void __user *) buf + offset,
+			   nd->nd_mon_buf + nd->nd_mon_out, res);
+	if (rtn) {
+		up(&nd->nd_mon_semaphore);
+		return -EFAULT;
+	}
+
+	nd->nd_mon_out += res;
+
+	*ppos += res;
+
+	up(&nd->nd_mon_semaphore);
+
+	/*
+	 *  Wakeup any thread waiting for buffer space.
+	 */
+
+	if (nd->nd_mon_flag & MON_WAIT_SPACE) {
+		nd->nd_mon_flag &= ~MON_WAIT_SPACE;
+		wake_up_interruptible(&nd->nd_mon_wqueue);
+	}
+
+	return res;
+}
+
+/*  ioctl is not valid on monitor device */
+static long dgrp_mon_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg)
+{
+	return -EINVAL;
+}
diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c
new file mode 100644
index 00000000000..ab839ea3b44
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_net_ops.c
@@ -0,0 +1,3737 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     James Puzzo  <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_net_ops.c
+ *
+ *  Description:
+ *
+ *     Handle the file operations required for the "network" devices.
+ *     Includes those functions required to register the "net" devices
+ *     in "/proc".
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/spinlock.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/ratelimit.h>
+#include <asm/unaligned.h>
+
+#define MYFLIPLEN	TBUF_MAX
+
+#include "dgrp_common.h"
+
+#define TTY_FLIPBUF_SIZE 512
+#define DEVICE_NAME_SIZE 50
+
+/*
+ *  Generic helper function declarations
+ */
+static void   parity_scan(struct ch_struct *ch, unsigned char *cbuf,
+				unsigned char *fbuf, int *len);
+
+/*
+ *  File operation declarations
+ */
+static int dgrp_net_open(struct inode *, struct file *);
+static int dgrp_net_release(struct inode *, struct file *);
+static ssize_t dgrp_net_read(struct file *, char __user *, size_t, loff_t *);
+static ssize_t dgrp_net_write(struct file *, const char __user *, size_t,
+			      loff_t *);
+static long dgrp_net_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg);
+static unsigned int dgrp_net_select(struct file *file,
+				    struct poll_table_struct *table);
+
+static const struct file_operations net_ops = {
+	.owner   =  THIS_MODULE,
+	.read    =  dgrp_net_read,
+	.write   =  dgrp_net_write,
+	.poll    =  dgrp_net_select,
+	.unlocked_ioctl =  dgrp_net_ioctl,
+	.open    =  dgrp_net_open,
+	.release =  dgrp_net_release,
+};
+
+static struct inode_operations net_inode_ops = {
+	.permission = dgrp_inode_permission
+};
+
+void dgrp_register_net_hook(struct proc_dir_entry *de)
+{
+	struct nd_struct *node = de->data;
+
+	de->proc_iops = &net_inode_ops;
+	de->proc_fops = &net_ops;
+	node->nd_net_de = de;
+	sema_init(&node->nd_net_semaphore, 1);
+	node->nd_state = NS_CLOSED;
+	dgrp_create_node_class_sysfs_files(node);
+}
+
+
+/**
+ * dgrp_dump() -- prints memory for debugging purposes.
+ * @mem: Memory location which should be printed to the console
+ * @len: Number of bytes to be dumped
+ */
+static void dgrp_dump(u8 *mem, int len)
+{
+	int i;
+
+	pr_debug("dgrp dump length = %d, data = ", len);
+	for (i = 0; i < len; ++i)
+		pr_debug("%.2x ", mem[i]);
+	pr_debug("\n");
+}
+
+/**
+ * dgrp_read_data_block() -- Read a data block
+ * @ch: struct ch_struct *
+ * @flipbuf: u8 *
+ * @flipbuf_size: size of flipbuf
+ */
+static void dgrp_read_data_block(struct ch_struct *ch, u8 *flipbuf,
+				 int flipbuf_size)
+{
+	int t;
+	int n;
+
+	if (flipbuf_size <= 0)
+		return;
+
+	t = RBUF_MAX - ch->ch_rout;
+	n = flipbuf_size;
+
+	if (n >= t) {
+		memcpy(flipbuf, ch->ch_rbuf + ch->ch_rout, t);
+		flipbuf += t;
+		n -= t;
+		ch->ch_rout = 0;
+	}
+
+	memcpy(flipbuf, ch->ch_rbuf + ch->ch_rout, n);
+	flipbuf += n;
+	ch->ch_rout += n;
+}
+
+
+/**
+ * dgrp_input() -- send data to the line disipline
+ * @ch: pointer to channel struct
+ *
+ * Copys the rbuf to the flipbuf and sends to line discipline.
+ * Sends input buffer data to the line discipline.
+ *
+ * There are several modes to consider here:
+ *    rawreadok, tty->real_raw, and IF_PARMRK
+ */
+static void dgrp_input(struct ch_struct *ch)
+{
+	struct nd_struct *nd;
+	struct tty_struct *tty;
+	int remain;
+	int data_len;
+	int len;
+	int flip_len;
+	int tty_count;
+	ulong lock_flags;
+	struct tty_ldisc *ld;
+	u8  *myflipbuf;
+	u8  *myflipflagbuf;
+
+	if (!ch)
+		return;
+
+	nd = ch->ch_nd;
+
+	if (!nd)
+		return;
+
+	spin_lock_irqsave(&nd->nd_lock, lock_flags);
+
+	myflipbuf = nd->nd_inputbuf;
+	myflipflagbuf = nd->nd_inputflagbuf;
+
+	if (!ch->ch_open_count) {
+		ch->ch_rout = ch->ch_rin;
+		goto out;
+	}
+
+	if (ch->ch_tun.un_flag & UN_CLOSING) {
+		ch->ch_rout = ch->ch_rin;
+		goto out;
+	}
+
+	tty = (ch->ch_tun).un_tty;
+
+
+	if (!tty || tty->magic != TTY_MAGIC) {
+		ch->ch_rout = ch->ch_rin;
+		goto out;
+	}
+
+	tty_count = tty->count;
+	if (!tty_count) {
+		ch->ch_rout = ch->ch_rin;
+		goto out;
+	}
+
+	if (tty->closing || test_bit(TTY_CLOSING, &tty->flags)) {
+		ch->ch_rout = ch->ch_rin;
+		goto out;
+	}
+
+	spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+
+	/* Decide how much data we can send into the tty layer */
+	if (dgrp_rawreadok && tty->real_raw)
+		flip_len = MYFLIPLEN;
+	else
+		flip_len = TTY_FLIPBUF_SIZE;
+
+	/* data_len should be the number of chars that we read in */
+	data_len = (ch->ch_rin - ch->ch_rout) & RBUF_MASK;
+	remain = data_len;
+
+	/* len is the amount of data we are going to transfer here */
+	len = min(data_len, flip_len);
+
+	/* take into consideration length of ldisc */
+	len = min(len, (N_TTY_BUF_SIZE - 1) - tty->read_cnt);
+
+	ld = tty_ldisc_ref(tty);
+
+	/*
+	 * If we were unable to get a reference to the ld,
+	 * don't flush our buffer, and act like the ld doesn't
+	 * have any space to put the data right now.
+	 */
+	if (!ld) {
+		len = 0;
+	} else if (!ld->ops->receive_buf) {
+		spin_lock_irqsave(&nd->nd_lock, lock_flags);
+		ch->ch_rout = ch->ch_rin;
+		spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+		len = 0;
+	}
+
+	/* Check DPA flow control */
+	if ((nd->nd_dpa_debug) &&
+	    (nd->nd_dpa_flag & DPA_WAIT_SPACE) &&
+	    (nd->nd_dpa_port == MINOR(tty_devnum(ch->ch_tun.un_tty))))
+		len = 0;
+
+	if ((len) && !(ch->ch_flag & CH_RXSTOP)) {
+
+		dgrp_read_data_block(ch, myflipbuf, len);
+
+		/*
+		 * In high performance mode, we don't have to update
+		 * flag_buf or any of the counts or pointers into flip buf.
+		 */
+		if (!dgrp_rawreadok || !tty->real_raw) {
+			if (I_PARMRK(tty) || I_BRKINT(tty) || I_INPCK(tty))
+				parity_scan(ch, myflipbuf, myflipflagbuf, &len);
+			else
+				memset(myflipflagbuf, TTY_NORMAL, len);
+		}
+
+		if ((nd->nd_dpa_debug) &&
+		    (nd->nd_dpa_port == PORT_NUM(MINOR(tty_devnum(tty)))))
+			dgrp_dpa_data(nd, 1, myflipbuf, len);
+
+		/*
+		 * If we're doing raw reads, jam it right into the
+		 * line disc bypassing the flip buffers.
+		 */
+		if (dgrp_rawreadok && tty->real_raw)
+			ld->ops->receive_buf(tty, myflipbuf, NULL, len);
+		else {
+			len = tty_buffer_request_room(tty, len);
+			tty_insert_flip_string_flags(tty, myflipbuf,
+						     myflipflagbuf, len);
+
+			/* Tell the tty layer its okay to "eat" the data now */
+			tty_flip_buffer_push(tty);
+		}
+
+		ch->ch_rxcount += len;
+	}
+
+	if (ld)
+		tty_ldisc_deref(ld);
+
+	/*
+	 * Wake up any sleepers (maybe dgrp close) that might be waiting
+	 * for a channel flag state change.
+	 */
+	wake_up_interruptible(&ch->ch_flag_wait);
+	return;
+
+out:
+	spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+}
+
+
+/*
+ *  parity_scan
+ *
+ *  Loop to inspect each single character or 0xFF escape.
+ *
+ *  if PARMRK & ~DOSMODE:
+ *     0xFF  0xFF           Normal 0xFF character, escaped
+ *                          to eliminate confusion.
+ *     0xFF  0x00  0x00     Break
+ *     0xFF  0x00  CC       Error character CC.
+ *     CC                   Normal character CC.
+ *
+ *  if PARMRK & DOSMODE:
+ *     0xFF  0x18  0x00     Break
+ *     0xFF  0x08  0x00     Framing Error
+ *     0xFF  0x04  0x00     Parity error
+ *     0xFF  0x0C  0x00     Both Framing and Parity error
+ *
+ *  TODO:  do we need to do the XMODEM, XOFF, XON, XANY processing??
+ *         as per protocol
+ */
+static void parity_scan(struct ch_struct *ch, unsigned char *cbuf,
+			unsigned char *fbuf, int *len)
+{
+	int l = *len;
+	int count = 0;
+	int DOS = ((ch->ch_iflag & IF_DOSMODE) == 0 ? 0 : 1);
+	unsigned char *cout; /* character buffer */
+	unsigned char *fout; /* flag buffer */
+	unsigned char *in;
+	unsigned char c;
+
+	in = cbuf;
+	cout = cbuf;
+	fout = fbuf;
+
+	while (l--) {
+		c = *in;
+		in++;
+
+		switch (ch->ch_pscan_state) {
+		default:
+			/* reset to sanity and fall through */
+			ch->ch_pscan_state = 0 ;
+
+		case 0:
+			/* No FF seen yet */
+			if (c == 0xff) /* delete this character from stream */
+				ch->ch_pscan_state = 1;
+			else {
+				*cout++ = c;
+				*fout++ = TTY_NORMAL;
+				count += 1;
+			}
+			break;
+
+		case 1:
+			/* first FF seen */
+			if (c == 0xff) {
+				/* doubled ff, transform to single ff */
+				*cout++ = c;
+				*fout++ = TTY_NORMAL;
+				count += 1;
+				ch->ch_pscan_state = 0;
+			} else {
+				/* save value examination in next state */
+				ch->ch_pscan_savechar = c;
+				ch->ch_pscan_state = 2;
+			}
+			break;
+
+		case 2:
+			/* third character of ff sequence */
+			*cout++ = c;
+			if (DOS) {
+				if (ch->ch_pscan_savechar & 0x10)
+					*fout++ = TTY_BREAK;
+				else if (ch->ch_pscan_savechar & 0x08)
+					*fout++ = TTY_FRAME;
+				else
+					/*
+					 * either marked as a parity error,
+					 * indeterminate, or not in DOSMODE
+					 * call it a parity error
+					 */
+					*fout++ = TTY_PARITY;
+			} else {
+				/* case FF XX ?? where XX is not 00 */
+				if (ch->ch_pscan_savechar & 0xff) {
+					/* this should not happen */
+					pr_info("%s: parity_scan: error unexpected byte\n",
+						__func__);
+					*fout++ = TTY_PARITY;
+				}
+				/* case FF 00 XX where XX is not 00 */
+				else if (c == 0xff)
+					*fout++ = TTY_PARITY;
+				/* case FF 00 00 */
+				else
+					*fout++ = TTY_BREAK;
+
+			}
+			count += 1;
+			ch->ch_pscan_state = 0;
+		}
+	}
+	*len = count;
+}
+
+
+/**
+ * dgrp_net_idle() -- Idle the network connection
+ * @nd: pointer to node structure to idle
+ */
+static void dgrp_net_idle(struct nd_struct *nd)
+{
+	struct ch_struct *ch;
+	int i;
+
+	nd->nd_tx_work = 1;
+
+	nd->nd_state = NS_IDLE;
+	nd->nd_flag = 0;
+
+	for (i = nd->nd_seq_out; ; i = (i + 1) & SEQ_MASK) {
+		if (!nd->nd_seq_wait[i]) {
+			nd->nd_seq_wait[i] = 0;
+			wake_up_interruptible(&nd->nd_seq_wque[i]);
+		}
+
+		if (i == nd->nd_seq_in)
+			break;
+	}
+
+	nd->nd_seq_out = nd->nd_seq_in;
+
+	nd->nd_unack = 0;
+	nd->nd_remain = 0;
+
+	nd->nd_tx_module = 0x10;
+	nd->nd_rx_module = 0x00;
+
+	for (i = 0, ch = nd->nd_chan; i < CHAN_MAX; i++, ch++) {
+		ch->ch_state = CS_IDLE;
+
+		ch->ch_otype = 0;
+		ch->ch_otype_waiting = 0;
+	}
+}
+
+/*
+ *  Increase the number of channels, waking up any
+ *  threads that might be waiting for the channels
+ *  to appear.
+ */
+static void increase_channel_count(struct nd_struct *nd, int n)
+{
+	struct ch_struct *ch;
+	struct device *classp;
+	char name[DEVICE_NAME_SIZE];
+	int ret;
+	u8 *buf;
+	int i;
+
+	for (i = nd->nd_chan_count; i < n; ++i) {
+		ch = nd->nd_chan + i;
+
+		/* FIXME: return a useful error instead! */
+		buf = kmalloc(TBUF_MAX, GFP_KERNEL);
+		if (!buf)
+			return;
+
+		if (ch->ch_tbuf)
+			pr_info_ratelimited("%s - ch_tbuf was not NULL\n",
+					    __func__);
+
+		ch->ch_tbuf = buf;
+
+		buf = kmalloc(RBUF_MAX, GFP_KERNEL);
+		if (!buf)
+			return;
+
+		if (ch->ch_rbuf)
+			pr_info("%s - ch_rbuf was not NULL\n",
+				__func__);
+		ch->ch_rbuf = buf;
+
+		classp = tty_port_register_device(&ch->port,
+						  nd->nd_serial_ttdriver, i,
+						  NULL);
+
+		ch->ch_tun.un_sysfs = classp;
+		snprintf(name, DEVICE_NAME_SIZE, "tty_%d", i);
+
+		dgrp_create_tty_sysfs(&ch->ch_tun, classp);
+		ret = sysfs_create_link(&nd->nd_class_dev->kobj,
+					&classp->kobj, name);
+
+		/* NOTE: We don't support "cu" devices anymore,
+		 * so you will notice we don't register them
+		 * here anymore. */
+		if (dgrp_register_prdevices) {
+			classp = tty_register_device(nd->nd_xprint_ttdriver,
+						     i, NULL);
+			ch->ch_pun.un_sysfs = classp;
+			snprintf(name, DEVICE_NAME_SIZE, "pr_%d", i);
+
+			dgrp_create_tty_sysfs(&ch->ch_pun, classp);
+			ret = sysfs_create_link(&nd->nd_class_dev->kobj,
+						&classp->kobj, name);
+		}
+
+		nd->nd_chan_count = i + 1;
+		wake_up_interruptible(&ch->ch_flag_wait);
+	}
+}
+
+/*
+ * Decrease the number of channels, and wake up any threads that might
+ * be waiting on the channels that vanished.
+ */
+static void decrease_channel_count(struct nd_struct *nd, int n)
+{
+	struct ch_struct *ch;
+	char name[DEVICE_NAME_SIZE];
+	int i;
+
+	for (i = nd->nd_chan_count - 1; i >= n; --i) {
+		ch = nd->nd_chan + i;
+
+		/*
+		 *  Make any open ports inoperative.
+		 */
+		ch->ch_state = CS_IDLE;
+
+		ch->ch_otype = 0;
+		ch->ch_otype_waiting = 0;
+
+		/*
+		 *  Only "HANGUP" if we care about carrier
+		 *  transitions and we are already open.
+		 */
+		if (ch->ch_open_count != 0) {
+			ch->ch_flag |= CH_HANGUP;
+			dgrp_carrier(ch);
+		}
+
+		/*
+		 * Unlike the CH_HANGUP flag above, use another
+		 * flag to indicate to the RealPort state machine
+		 * that this port has disappeared.
+		 */
+		if (ch->ch_open_count != 0)
+			ch->ch_flag |= CH_PORT_GONE;
+
+		wake_up_interruptible(&ch->ch_flag_wait);
+
+		nd->nd_chan_count = i;
+
+		kfree(ch->ch_tbuf);
+		ch->ch_tbuf = NULL;
+
+		kfree(ch->ch_rbuf);
+		ch->ch_rbuf = NULL;
+
+		nd->nd_chan_count = i;
+
+		dgrp_remove_tty_sysfs(ch->ch_tun.un_sysfs);
+		snprintf(name, DEVICE_NAME_SIZE, "tty_%d", i);
+		sysfs_remove_link(&nd->nd_class_dev->kobj, name);
+		tty_unregister_device(nd->nd_serial_ttdriver, i);
+
+		/*
+		 * NOTE: We don't support "cu" devices anymore, so don't
+		 * unregister them here anymore.
+		 */
+
+		if (dgrp_register_prdevices) {
+			dgrp_remove_tty_sysfs(ch->ch_pun.un_sysfs);
+			snprintf(name, DEVICE_NAME_SIZE, "pr_%d", i);
+			sysfs_remove_link(&nd->nd_class_dev->kobj, name);
+			tty_unregister_device(nd->nd_xprint_ttdriver, i);
+		}
+	}
+}
+
+/**
+ * dgrp_chan_count() -- Adjust the node channel count.
+ * @nd: pointer to a node structure
+ * @n: new value for channel count
+ *
+ * Adjusts the node channel count.  If new ports have appeared, it tries
+ * to signal those processes that might have been waiting for ports to
+ * appear.  If ports have disappeared it tries to signal those processes
+ * that might be hung waiting for a response for the now non-existant port.
+ */
+static void dgrp_chan_count(struct nd_struct *nd, int n)
+{
+	if (n == nd->nd_chan_count)
+		return;
+
+	if (n > nd->nd_chan_count)
+		increase_channel_count(nd, n);
+
+	if (n < nd->nd_chan_count)
+		decrease_channel_count(nd, n);
+}
+
+/**
+ * dgrp_monitor() -- send data to the device monitor queue
+ * @nd: pointer to a node structure
+ * @buf: data to copy to the monitoring buffer
+ * @len: number of bytes to transfer to the buffer
+ *
+ * Called by the net device routines to send data to the device
+ * monitor queue.  If the device monitor buffer is too full to
+ * accept the data, it waits until the buffer is ready.
+ */
+static void dgrp_monitor(struct nd_struct *nd, u8 *buf, int len)
+{
+	int n;
+	int r;
+	int rtn;
+
+	/*
+	 *  Grab monitor lock.
+	 */
+	down(&nd->nd_mon_semaphore);
+
+	/*
+	 *  Loop while data remains.
+	 */
+	while ((len > 0) && (nd->nd_mon_buf)) {
+		/*
+		 *  Determine the amount of available space left in the
+		 *  buffer.  If there's none, wait until some appears.
+		 */
+
+		n = (nd->nd_mon_out - nd->nd_mon_in - 1) & MON_MASK;
+
+		if (!n) {
+			nd->nd_mon_flag |= MON_WAIT_SPACE;
+
+			up(&nd->nd_mon_semaphore);
+
+			/*
+			 * Go to sleep waiting until the condition becomes true.
+			 */
+			rtn = wait_event_interruptible(nd->nd_mon_wqueue,
+						       ((nd->nd_mon_flag & MON_WAIT_SPACE) == 0));
+
+/* FIXME: really ignore rtn? */
+
+			/*
+			 *  We can't exit here if we receive a signal, since
+			 *  to do so would trash the debug stream.
+			 */
+
+			down(&nd->nd_mon_semaphore);
+
+			continue;
+		}
+
+		/*
+		 * Copy as much data as will fit.
+		 */
+
+		if (n > len)
+			n = len;
+
+		r = MON_MAX - nd->nd_mon_in;
+
+		if (r <= n) {
+			memcpy(nd->nd_mon_buf + nd->nd_mon_in, buf, r);
+
+			n -= r;
+
+			nd->nd_mon_in = 0;
+
+			buf += r;
+			len -= r;
+		}
+
+		memcpy(nd->nd_mon_buf + nd->nd_mon_in, buf, n);
+
+		nd->nd_mon_in += n;
+
+		buf += n;
+		len -= n;
+
+		if (nd->nd_mon_in >= MON_MAX)
+			pr_info_ratelimited("%s - nd_mon_in (%i) >= MON_MAX\n",
+					    __func__, nd->nd_mon_in);
+
+		/*
+		 *  Wakeup any thread waiting for data
+		 */
+
+		if (nd->nd_mon_flag & MON_WAIT_DATA) {
+			nd->nd_mon_flag &= ~MON_WAIT_DATA;
+			wake_up_interruptible(&nd->nd_mon_wqueue);
+		}
+	}
+
+	/*
+	 *  Release the monitor lock.
+	 */
+	up(&nd->nd_mon_semaphore);
+}
+
+/**
+ * dgrp_encode_time() -- Encodes rpdump time into a 4-byte quantity.
+ * @nd: pointer to a node structure
+ * @buf: destination buffer
+ *
+ * Encodes "rpdump" time into a 4-byte quantity.  Time is measured since
+ * open.
+ */
+static void dgrp_encode_time(struct nd_struct *nd, u8 *buf)
+{
+	ulong t;
+
+	/*
+	 *  Convert time in HZ since open to time in milliseconds
+	 *  since open.
+	 */
+	t = jiffies - nd->nd_mon_lbolt;
+	t = 1000 * (t / HZ) + 1000 * (t % HZ) / HZ;
+
+	put_unaligned_be32((uint)(t & 0xffffffff), buf);
+}
+
+
+
+/**
+ * dgrp_monitor_message() -- Builds a rpdump style message.
+ * @nd: pointer to a node structure
+ * @message: destination buffer
+ */
+static void dgrp_monitor_message(struct nd_struct *nd, char *message)
+{
+	u8 header[7];
+	int n;
+
+	header[0] = RPDUMP_MESSAGE;
+
+	dgrp_encode_time(nd, header + 1);
+
+	n = strlen(message);
+
+	put_unaligned_be16(n, header + 5);
+
+	dgrp_monitor(nd, header, sizeof(header));
+	dgrp_monitor(nd, (u8 *) message, n);
+}
+
+
+
+/**
+ * dgrp_monitor_reset() -- Note a reset in the monitoring buffer.
+ * @nd: pointer to a node structure
+ */
+static void dgrp_monitor_reset(struct nd_struct *nd)
+{
+	u8 header[5];
+
+	header[0] = RPDUMP_RESET;
+
+	dgrp_encode_time(nd, header + 1);
+
+	dgrp_monitor(nd, header, sizeof(header));
+}
+
+/**
+ * dgrp_monitor_data() -- builds a monitor data packet
+ * @nd: pointer to a node structure
+ * @type: type of message to be logged
+ * @buf: data to be logged
+ * @size: number of bytes in the buffer
+ */
+static void dgrp_monitor_data(struct nd_struct *nd, u8 type, u8 *buf, int size)
+{
+	u8 header[7];
+
+	header[0] = type;
+
+	dgrp_encode_time(nd, header + 1);
+
+	put_unaligned_be16(size, header + 5);
+
+	dgrp_monitor(nd, header, sizeof(header));
+	dgrp_monitor(nd, buf, size);
+}
+
+static int alloc_nd_buffers(struct nd_struct *nd)
+{
+
+	nd->nd_iobuf = NULL;
+	nd->nd_writebuf = NULL;
+	nd->nd_inputbuf = NULL;
+	nd->nd_inputflagbuf = NULL;
+
+	/*
+	 *  Allocate the network read/write buffer.
+	 */
+	nd->nd_iobuf = kzalloc(UIO_MAX + 10, GFP_KERNEL);
+	if (!nd->nd_iobuf)
+		goto out_err;
+
+	/*
+	 * Allocate a buffer for doing the copy from user space to
+	 * kernel space in the write routines.
+	 */
+	nd->nd_writebuf = kzalloc(WRITEBUFLEN, GFP_KERNEL);
+	if (!nd->nd_writebuf)
+		goto out_err;
+
+	/*
+	 * Allocate a buffer for doing the copy from kernel space to
+	 * tty buffer space in the read routines.
+	 */
+	nd->nd_inputbuf = kzalloc(MYFLIPLEN, GFP_KERNEL);
+	if (!nd->nd_inputbuf)
+		goto out_err;
+
+	/*
+	 * Allocate a buffer for doing the copy from kernel space to
+	 * tty buffer space in the read routines.
+	 */
+	nd->nd_inputflagbuf = kzalloc(MYFLIPLEN, GFP_KERNEL);
+	if (!nd->nd_inputflagbuf)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	kfree(nd->nd_iobuf);
+	kfree(nd->nd_writebuf);
+	kfree(nd->nd_inputbuf);
+	kfree(nd->nd_inputflagbuf);
+	return -ENOMEM;
+}
+
+/*
+ * dgrp_net_open() -- Open the NET device for a particular PortServer
+ */
+static int dgrp_net_open(struct inode *inode, struct file *file)
+{
+	struct nd_struct *nd;
+	struct proc_dir_entry *de;
+	ulong  lock_flags;
+	int rtn;
+
+	rtn = try_module_get(THIS_MODULE);
+	if (!rtn)
+		return -EAGAIN;
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		rtn = -EPERM;
+		goto done;
+	}
+
+	/*
+	 *  Make sure that the "private_data" field hasn't already been used.
+	 */
+	if (file->private_data) {
+		rtn = -EINVAL;
+		goto done;
+	}
+
+	/*
+	 *  Get the node pointer, and fail if it doesn't exist.
+	 */
+	de = PDE(inode);
+	if (!de) {
+		rtn = -ENXIO;
+		goto done;
+	}
+
+	nd = (struct nd_struct *) de->data;
+	if (!nd) {
+		rtn = -ENXIO;
+		goto done;
+	}
+
+	file->private_data = (void *) nd;
+
+	/*
+	 *  Grab the NET lock.
+	 */
+	down(&nd->nd_net_semaphore);
+
+	if (nd->nd_state != NS_CLOSED) {
+		rtn = -EBUSY;
+		goto unlock;
+	}
+
+	/*
+	 *  Initialize the link speed parameters.
+	 */
+
+	nd->nd_link.lk_fast_rate = UIO_MAX;
+	nd->nd_link.lk_slow_rate = UIO_MAX;
+
+	nd->nd_link.lk_fast_delay = 1000;
+	nd->nd_link.lk_slow_delay = 1000;
+
+	nd->nd_link.lk_header_size = 46;
+
+
+	rtn = alloc_nd_buffers(nd);
+	if (rtn)
+		goto unlock;
+
+	/*
+	 *  The port is now open, so move it to the IDLE state
+	 */
+	dgrp_net_idle(nd);
+
+	nd->nd_tx_time = jiffies;
+
+	/*
+	 *  If the polling routing is not running, start it running here
+	 */
+	spin_lock_irqsave(&dgrp_poll_data.poll_lock, lock_flags);
+
+	if (!dgrp_poll_data.node_active_count) {
+		dgrp_poll_data.node_active_count = 2;
+		dgrp_poll_data.timer.expires = jiffies +
+			dgrp_poll_tick * HZ / 1000;
+		add_timer(&dgrp_poll_data.timer);
+	}
+
+	spin_unlock_irqrestore(&dgrp_poll_data.poll_lock, lock_flags);
+
+	dgrp_monitor_message(nd, "Net Open");
+
+unlock:
+	/*
+	 *  Release the NET lock.
+	 */
+	up(&nd->nd_net_semaphore);
+
+done:
+	if (rtn)
+		module_put(THIS_MODULE);
+
+	return rtn;
+}
+
+/* dgrp_net_release() -- close the NET device for a particular PortServer */
+static int dgrp_net_release(struct inode *inode, struct file *file)
+{
+	struct nd_struct *nd;
+	ulong  lock_flags;
+
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		goto done;
+
+/* TODO : historical locking placeholder */
+/*
+ *  In the HPUX version of the RealPort driver (which served as a basis
+ *  for this driver) this locking code was used.  Saved if ever we need
+ *  to review the locking under Linux.
+ */
+/*	spinlock(&nd->nd_lock); */
+
+
+	/*
+	 *  Grab the NET lock.
+	 */
+	down(&nd->nd_net_semaphore);
+
+	/*
+	 *  Before "closing" the internal connection, make sure all
+	 *  ports are "idle".
+	 */
+	dgrp_net_idle(nd);
+
+	nd->nd_state = NS_CLOSED;
+	nd->nd_flag = 0;
+
+	/*
+	 *  TODO ... must the wait queue be reset on close?
+	 *  should any pending waiters be reset?
+	 *  Let's decide to assert that the waitq is empty... and see
+	 *  how soon we break.
+	 */
+	if (waitqueue_active(&nd->nd_tx_waitq))
+		pr_info("%s - expected waitqueue_active to be false\n",
+			__func__);
+
+	nd->nd_send = 0;
+
+	kfree(nd->nd_iobuf);
+	nd->nd_iobuf = NULL;
+
+/* TODO : historical locking placeholder */
+/*
+ *  In the HPUX version of the RealPort driver (which served as a basis
+ *  for this driver) this locking code was used.  Saved if ever we need
+ *  to review the locking under Linux.
+ */
+/*	spinunlock( &nd->nd_lock ); */
+
+
+	kfree(nd->nd_writebuf);
+	nd->nd_writebuf = NULL;
+
+	kfree(nd->nd_inputbuf);
+	nd->nd_inputbuf = NULL;
+
+	kfree(nd->nd_inputflagbuf);
+	nd->nd_inputflagbuf = NULL;
+
+/* TODO : historical locking placeholder */
+/*
+ *  In the HPUX version of the RealPort driver (which served as a basis
+ *  for this driver) this locking code was used.  Saved if ever we need
+ *  to review the locking under Linux.
+ */
+/*	spinlock(&nd->nd_lock); */
+
+	/*
+	 *  Set the active port count to zero.
+	 */
+	dgrp_chan_count(nd, 0);
+
+/* TODO : historical locking placeholder */
+/*
+ *  In the HPUX version of the RealPort driver (which served as a basis
+ *  for this driver) this locking code was used.  Saved if ever we need
+ *  to review the locking under Linux.
+ */
+/*	spinunlock(&nd->nd_lock); */
+
+	/*
+	 *  Release the NET lock.
+	 */
+	up(&nd->nd_net_semaphore);
+
+	/*
+	 *  Cause the poller to stop scheduling itself if this is
+	 *  the last active node.
+	 */
+	spin_lock_irqsave(&dgrp_poll_data.poll_lock, lock_flags);
+
+	if (dgrp_poll_data.node_active_count == 2) {
+		del_timer(&dgrp_poll_data.timer);
+		dgrp_poll_data.node_active_count = 0;
+	}
+
+	spin_unlock_irqrestore(&dgrp_poll_data.poll_lock, lock_flags);
+
+done:
+	down(&nd->nd_net_semaphore);
+
+	dgrp_monitor_message(nd, "Net Close");
+
+	up(&nd->nd_net_semaphore);
+
+	module_put(THIS_MODULE);
+	file->private_data = NULL;
+	return 0;
+}
+
+/* used in dgrp_send to setup command header */
+static inline u8 *set_cmd_header(u8 *b, u8 port, u8 cmd)
+{
+	*b++ = 0xb0 + (port & 0x0f);
+	*b++ = cmd;
+	return b;
+}
+
+/**
+ * dgrp_send() -- build a packet for transmission to the server
+ * @nd: pointer to a node structure
+ * @tmax: maximum bytes to transmit
+ *
+ * returns number of bytes sent
+ */
+static int dgrp_send(struct nd_struct *nd, long tmax)
+{
+	struct ch_struct *ch = nd->nd_chan;
+	u8 *b;
+	u8 *buf;
+	u8 *mbuf;
+	u8 port;
+	int mod;
+	long send;
+	int maxport;
+	long lastport = -1;
+	ushort rwin;
+	long in;
+	ushort n;
+	long t;
+	long ttotal;
+	long tchan;
+	long tsend;
+	ushort tsafe;
+	long work;
+	long send_sync;
+	long wanted_sync_port = -1;
+	ushort tdata[CHAN_MAX];
+	long used_buffer;
+
+	mbuf = nd->nd_iobuf + UIO_BASE;
+	buf = b = mbuf;
+
+	send_sync = nd->nd_link.lk_slow_rate < UIO_MAX;
+
+	ttotal = 0;
+	tchan = 0;
+
+	memset(tdata, 0, sizeof(tdata));
+
+
+	/*
+	 * If there are any outstanding requests to be serviced,
+	 * service them here.
+	 */
+	if (nd->nd_send & NR_PASSWORD) {
+
+		/*
+		 *  Send Password response.
+		 */
+
+		b[0] = 0xfc;
+		b[1] = 0x20;
+		put_unaligned_be16(strlen(nd->password), b + 2);
+		b += 4;
+		b += strlen(nd->password);
+		nd->nd_send &= ~(NR_PASSWORD);
+	}
+
+
+	/*
+	 *  Loop over all modules to generate commands, and determine
+	 *  the amount of data queued for transmit.
+	 */
+
+	for (mod = 0, port = 0; port < nd->nd_chan_count; mod++) {
+		/*
+		 *  If this is not the current module, enter a module select
+		 *  code in the buffer.
+		 */
+
+		if (mod != nd->nd_tx_module)
+			mbuf = ++b;
+
+		/*
+		 *  Loop to process one module.
+		 */
+
+		maxport = port + 16;
+
+		if (maxport > nd->nd_chan_count)
+			maxport = nd->nd_chan_count;
+
+		for (; port < maxport; port++, ch++) {
+			/*
+			 *  Switch based on channel state.
+			 */
+
+			switch (ch->ch_state) {
+			/*
+			 *  Send requests when the port is closed, and there
+			 *  are no Open, Close or Cancel requests expected.
+			 */
+
+			case CS_IDLE:
+				/*
+				 * Wait until any open error code
+				 * has been delivered to all
+				 * associated ports.
+				 */
+
+				if (ch->ch_open_error) {
+					if (ch->ch_wait_count[ch->ch_otype]) {
+						work = 1;
+						break;
+					}
+
+					ch->ch_open_error = 0;
+				}
+
+				/*
+				 *  Wait until the channel HANGUP flag is reset
+				 *  before sending the first open.  We can only
+				 *  get to this state after a server disconnect.
+				 */
+
+				if ((ch->ch_flag & CH_HANGUP) != 0)
+					break;
+
+				/*
+				 *  If recovering from a TCP disconnect, or if
+				 *  there is an immediate open pending, send an
+				 *  Immediate Open request.
+				 */
+				if ((ch->ch_flag & CH_PORT_GONE) ||
+				    ch->ch_wait_count[OTYPE_IMMEDIATE] != 0) {
+					b = set_cmd_header(b, port, 10);
+					*b++ = 0;
+
+					ch->ch_state = CS_WAIT_OPEN;
+					ch->ch_otype = OTYPE_IMMEDIATE;
+					break;
+				}
+
+	/*
+	 *  If there is no Persistent or Incoming Open on the wait
+	 *  list in the server, and a thread is waiting for a
+	 *  Persistent or Incoming Open, send a Persistent or Incoming
+	 *  Open Request.
+	 */
+				if (ch->ch_otype_waiting == 0) {
+					if (ch->ch_wait_count[OTYPE_PERSISTENT] != 0) {
+						b = set_cmd_header(b, port, 10);
+						*b++ = 1;
+
+						ch->ch_state = CS_WAIT_OPEN;
+						ch->ch_otype = OTYPE_PERSISTENT;
+					} else if (ch->ch_wait_count[OTYPE_INCOMING] != 0) {
+						b = set_cmd_header(b, port, 10);
+						*b++ = 2;
+
+						ch->ch_state = CS_WAIT_OPEN;
+						ch->ch_otype = OTYPE_INCOMING;
+					}
+					break;
+				}
+
+				/*
+				 *  If a Persistent or Incoming Open is pending in
+				 *  the server, but there is no longer an open
+				 *  thread waiting for it, cancel the request.
+				 */
+
+				if (ch->ch_wait_count[ch->ch_otype_waiting] == 0) {
+					b = set_cmd_header(b, port, 10);
+					*b++ = 4;
+
+					ch->ch_state = CS_WAIT_CANCEL;
+					ch->ch_otype = ch->ch_otype_waiting;
+				}
+				break;
+
+				/*
+				 *  Send port parameter queries.
+				 */
+			case CS_SEND_QUERY:
+				/*
+				 *  Clear out all FEP state that might remain
+				 *  from the last connection.
+				 */
+
+				ch->ch_flag |= CH_PARAM;
+
+				ch->ch_flag &= ~CH_RX_FLUSH;
+
+				ch->ch_expect = 0;
+
+				ch->ch_s_tin   = 0;
+				ch->ch_s_tpos  = 0;
+				ch->ch_s_tsize = 0;
+				ch->ch_s_treq  = 0;
+				ch->ch_s_elast = 0;
+
+				ch->ch_s_rin   = 0;
+				ch->ch_s_rwin  = 0;
+				ch->ch_s_rsize = 0;
+
+				ch->ch_s_tmax  = 0;
+				ch->ch_s_ttime = 0;
+				ch->ch_s_rmax  = 0;
+				ch->ch_s_rtime = 0;
+				ch->ch_s_rlow  = 0;
+				ch->ch_s_rhigh = 0;
+
+				ch->ch_s_brate = 0;
+				ch->ch_s_iflag = 0;
+				ch->ch_s_cflag = 0;
+				ch->ch_s_oflag = 0;
+				ch->ch_s_xflag = 0;
+
+				ch->ch_s_mout  = 0;
+				ch->ch_s_mflow = 0;
+				ch->ch_s_mctrl = 0;
+				ch->ch_s_xon   = 0;
+				ch->ch_s_xoff  = 0;
+				ch->ch_s_lnext = 0;
+				ch->ch_s_xxon  = 0;
+				ch->ch_s_xxoff = 0;
+
+				/* Send Sequence Request */
+				b = set_cmd_header(b, port, 14);
+
+				/* Configure Event Conditions Packet */
+				b = set_cmd_header(b, port, 42);
+				put_unaligned_be16(0x02c0, b);
+				b += 2;
+				*b++ = (DM_DTR | DM_RTS | DM_CTS |
+					DM_DSR | DM_RI | DM_CD);
+
+				/* Send Status Request */
+				b = set_cmd_header(b, port, 16);
+
+				/* Send Buffer Request  */
+				b = set_cmd_header(b, port, 20);
+
+				/* Send Port Capability Request */
+				b = set_cmd_header(b, port, 22);
+
+				ch->ch_expect = (RR_SEQUENCE |
+						 RR_STATUS  |
+						 RR_BUFFER |
+						 RR_CAPABILITY);
+
+				ch->ch_state = CS_WAIT_QUERY;
+
+				/* Raise modem signals */
+				b = set_cmd_header(b, port, 44);
+
+				if (ch->ch_flag & CH_PORT_GONE)
+					ch->ch_s_mout = ch->ch_mout;
+				else
+					ch->ch_s_mout = ch->ch_mout = DM_DTR | DM_RTS;
+
+				*b++ = ch->ch_mout;
+				*b++ = ch->ch_s_mflow = 0;
+				*b++ = ch->ch_s_mctrl = ch->ch_mctrl = 0;
+
+				if (ch->ch_flag & CH_PORT_GONE)
+					ch->ch_flag &= ~CH_PORT_GONE;
+
+				break;
+
+			/*
+			 *  Handle normal open and ready mode.
+			 */
+
+			case CS_READY:
+
+				/*
+				 *  If the port is not open, and there are no
+				 *  no longer any ports requesting an open,
+				 *  then close the port.
+				 */
+
+				if (ch->ch_open_count == 0 &&
+				    ch->ch_wait_count[ch->ch_otype] == 0) {
+					goto send_close;
+				}
+
+	/*
+	 *  Process waiting input.
+	 *
+	 *  If there is no one to read it, discard the data.
+	 *
+	 *  Otherwise if we are not in fastcook mode, or if there is a
+	 *  fastcook thread waiting for data, send the data to the
+	 *  line discipline.
+	 */
+				if (ch->ch_rin != ch->ch_rout) {
+					if (ch->ch_tun.un_open_count == 0 ||
+					     (ch->ch_tun.un_flag & UN_CLOSING) ||
+					    (ch->ch_cflag & CF_CREAD) == 0) {
+						ch->ch_rout = ch->ch_rin;
+					} else if ((ch->ch_flag & CH_FAST_READ) == 0 ||
+							ch->ch_inwait != 0) {
+						dgrp_input(ch);
+
+						if (ch->ch_rin != ch->ch_rout)
+							work = 1;
+					}
+				}
+
+				/*
+				 *  Handle receive flush, and changes to
+				 *  server port parameters.
+				 */
+
+				if (ch->ch_flag & (CH_RX_FLUSH | CH_PARAM)) {
+				/*
+				 *  If we are in receive flush mode,
+				 *  and enough data has gone by, reset
+				 *  receive flush mode.
+				 */
+					if (ch->ch_flag & CH_RX_FLUSH) {
+						if (((ch->ch_flush_seq - nd->nd_seq_out) & SEQ_MASK) >
+						    ((nd->nd_seq_in - nd->nd_seq_out) & SEQ_MASK))
+							ch->ch_flag &= ~CH_RX_FLUSH;
+						else
+							work = 1;
+					}
+
+					/*
+					 *  Send TMAX, TTIME.
+					 */
+
+					if (ch->ch_s_tmax  != ch->ch_tmax ||
+					    ch->ch_s_ttime != ch->ch_ttime) {
+						b = set_cmd_header(b, port, 48);
+
+						ch->ch_s_tmax = ch->ch_tmax;
+						ch->ch_s_ttime = ch->ch_ttime;
+
+						put_unaligned_be16(ch->ch_s_tmax,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_ttime,
+								   b);
+						b += 2;
+					}
+
+					/*
+					 *  Send RLOW, RHIGH.
+					 */
+
+					if (ch->ch_s_rlow  != ch->ch_rlow ||
+					    ch->ch_s_rhigh != ch->ch_rhigh) {
+						b = set_cmd_header(b, port, 45);
+
+						ch->ch_s_rlow  = ch->ch_rlow;
+						ch->ch_s_rhigh = ch->ch_rhigh;
+
+						put_unaligned_be16(ch->ch_s_rlow,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_rhigh,
+								   b);
+						b += 2;
+					}
+
+					/*
+					 *  Send BRATE, CFLAG, IFLAG,
+					 *  OFLAG, XFLAG.
+					 */
+
+					if (ch->ch_s_brate != ch->ch_brate ||
+					    ch->ch_s_cflag != ch->ch_cflag ||
+					    ch->ch_s_iflag != ch->ch_iflag ||
+					    ch->ch_s_oflag != ch->ch_oflag ||
+					    ch->ch_s_xflag != ch->ch_xflag) {
+						b = set_cmd_header(b, port, 40);
+
+						ch->ch_s_brate = ch->ch_brate;
+						ch->ch_s_cflag = ch->ch_cflag;
+						ch->ch_s_iflag = ch->ch_iflag;
+						ch->ch_s_oflag = ch->ch_oflag;
+						ch->ch_s_xflag = ch->ch_xflag;
+
+						put_unaligned_be16(ch->ch_s_brate,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_cflag,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_iflag,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_oflag,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_xflag,
+								   b);
+						b += 2;
+					}
+
+					/*
+					 *  Send MOUT, MFLOW, MCTRL.
+					 */
+
+					if (ch->ch_s_mout  != ch->ch_mout  ||
+					    ch->ch_s_mflow != ch->ch_mflow ||
+					    ch->ch_s_mctrl != ch->ch_mctrl) {
+						b = set_cmd_header(b, port, 44);
+
+						*b++ = ch->ch_s_mout  = ch->ch_mout;
+						*b++ = ch->ch_s_mflow = ch->ch_mflow;
+						*b++ = ch->ch_s_mctrl = ch->ch_mctrl;
+					}
+
+					/*
+					 *  Send Flow control characters.
+					 */
+
+					if (ch->ch_s_xon   != ch->ch_xon   ||
+					    ch->ch_s_xoff  != ch->ch_xoff  ||
+					    ch->ch_s_lnext != ch->ch_lnext ||
+					    ch->ch_s_xxon  != ch->ch_xxon  ||
+					    ch->ch_s_xxoff != ch->ch_xxoff) {
+						b = set_cmd_header(b, port, 46);
+
+						*b++ = ch->ch_s_xon   = ch->ch_xon;
+						*b++ = ch->ch_s_xoff  = ch->ch_xoff;
+						*b++ = ch->ch_s_lnext = ch->ch_lnext;
+						*b++ = ch->ch_s_xxon  = ch->ch_xxon;
+						*b++ = ch->ch_s_xxoff = ch->ch_xxoff;
+					}
+
+					/*
+					 *  Send RMAX, RTIME.
+					 */
+
+					if (ch->ch_s_rmax != ch->ch_rmax ||
+					    ch->ch_s_rtime != ch->ch_rtime) {
+						b = set_cmd_header(b, port, 47);
+
+						ch->ch_s_rmax  = ch->ch_rmax;
+						ch->ch_s_rtime = ch->ch_rtime;
+
+						put_unaligned_be16(ch->ch_s_rmax,
+								   b);
+						b += 2;
+
+						put_unaligned_be16(ch->ch_s_rtime,
+								   b);
+						b += 2;
+					}
+
+					ch->ch_flag &= ~CH_PARAM;
+					wake_up_interruptible(&ch->ch_flag_wait);
+				}
+
+
+				/*
+				 *  Handle action commands.
+				 */
+
+				if (ch->ch_send != 0) {
+					/* int send = ch->ch_send & ~ch->ch_expect; */
+					send = ch->ch_send & ~ch->ch_expect;
+
+					/* Send character immediate */
+					if ((send & RR_TX_ICHAR) != 0) {
+						b = set_cmd_header(b, port, 60);
+
+						*b++ = ch->ch_xon;
+						ch->ch_expect |= RR_TX_ICHAR;
+					}
+
+					/* BREAK request */
+					if ((send & RR_TX_BREAK) != 0) {
+						if (ch->ch_break_time != 0) {
+							b = set_cmd_header(b, port, 61);
+							put_unaligned_be16(ch->ch_break_time,
+									   b);
+							b += 2;
+
+							ch->ch_expect |= RR_TX_BREAK;
+							ch->ch_break_time = 0;
+						} else {
+							ch->ch_send &= ~RR_TX_BREAK;
+							ch->ch_flag &= ~CH_TX_BREAK;
+							wake_up_interruptible(&ch->ch_flag_wait);
+						}
+					}
+
+					/*
+					 *  Flush input/output buffers.
+					 */
+
+					if ((send & (RR_RX_FLUSH | RR_TX_FLUSH)) != 0) {
+						b = set_cmd_header(b, port, 62);
+
+						*b++ = ((send & RR_TX_FLUSH) == 0 ? 1 :
+							(send & RR_RX_FLUSH) == 0 ? 2 : 3);
+
+						if (send & RR_RX_FLUSH) {
+							ch->ch_flush_seq = nd->nd_seq_in;
+							ch->ch_flag |= CH_RX_FLUSH;
+							work = 1;
+							send_sync = 1;
+							wanted_sync_port = port;
+						}
+
+						ch->ch_send &= ~(RR_RX_FLUSH | RR_TX_FLUSH);
+					}
+
+					/*  Pause input/output */
+					if ((send & (RR_RX_STOP | RR_TX_STOP)) != 0) {
+						b = set_cmd_header(b, port, 63);
+						*b = 0;
+
+						if ((send & RR_TX_STOP) != 0)
+							*b |= EV_OPU;
+
+						if ((send & RR_RX_STOP) != 0)
+							*b |= EV_IPU;
+
+						b++;
+
+						ch->ch_send &= ~(RR_RX_STOP | RR_TX_STOP);
+					}
+
+					/* Start input/output */
+					if ((send & (RR_RX_START | RR_TX_START)) != 0) {
+						b = set_cmd_header(b, port, 64);
+						*b = 0;
+
+						if ((send & RR_TX_START) != 0)
+							*b |= EV_OPU | EV_OPS | EV_OPX;
+
+						if ((send & RR_RX_START) != 0)
+							*b |= EV_IPU | EV_IPS;
+
+						b++;
+
+						ch->ch_send &= ~(RR_RX_START | RR_TX_START);
+					}
+				}
+
+
+				/*
+				 *  Send a window sequence to acknowledge received data.
+				 */
+
+				rwin = (ch->ch_s_rin +
+					((ch->ch_rout - ch->ch_rin - 1) & RBUF_MASK));
+
+				n = (rwin - ch->ch_s_rwin) & 0xffff;
+
+				if (n >= RBUF_MAX / 4) {
+					b[0] = 0xa0 + (port & 0xf);
+					ch->ch_s_rwin = rwin;
+					put_unaligned_be16(rwin, b + 1);
+					b += 3;
+				}
+
+				/*
+				 *  If the terminal is waiting on LOW
+				 *  water or EMPTY, and the condition
+				 *  is now satisfied, call the line
+				 *  discipline to put more data in the
+				 *  buffer.
+				 */
+
+				n = (ch->ch_tin - ch->ch_tout) & TBUF_MASK;
+
+				if ((ch->ch_tun.un_flag & (UN_EMPTY|UN_LOW)) != 0) {
+					if ((ch->ch_tun.un_flag & UN_LOW) != 0 ?
+					    (n <= TBUF_LOW) :
+					    (n == 0 && ch->ch_s_tpos == ch->ch_s_tin)) {
+						ch->ch_tun.un_flag &= ~(UN_EMPTY|UN_LOW);
+
+						if (waitqueue_active(&((ch->ch_tun.un_tty)->write_wait)))
+							wake_up_interruptible(&((ch->ch_tun.un_tty)->write_wait));
+						tty_wakeup(ch->ch_tun.un_tty);
+						n = (ch->ch_tin - ch->ch_tout) & TBUF_MASK;
+					}
+				}
+
+				/*
+				 * If the printer is waiting on LOW
+				 * water, TIME, EMPTY or PWAIT, and is
+				 * now ready to put more data in the
+				 * buffer, call the line discipline to
+				 * do the job.
+				 */
+
+				if (ch->ch_pun.un_open_count &&
+				    (ch->ch_pun.un_flag &
+				    (UN_EMPTY|UN_TIME|UN_LOW|UN_PWAIT)) != 0) {
+
+					if ((ch->ch_pun.un_flag & UN_LOW) != 0 ?
+					    (n <= TBUF_LOW) :
+					    (ch->ch_pun.un_flag & UN_TIME) != 0 ?
+					    ((jiffies - ch->ch_waketime) >= 0) :
+					    (n == 0 && ch->ch_s_tpos == ch->ch_s_tin) &&
+					    ((ch->ch_pun.un_flag & UN_EMPTY) != 0 ||
+					    ((ch->ch_tun.un_open_count &&
+					      ch->ch_tun.un_tty->ops->chars_in_buffer) ?
+					     (ch->ch_tun.un_tty->ops->chars_in_buffer)(ch->ch_tun.un_tty) == 0
+					     : 1
+					    )
+					    )) {
+						ch->ch_pun.un_flag &= ~(UN_EMPTY | UN_TIME | UN_LOW | UN_PWAIT);
+
+						if (waitqueue_active(&((ch->ch_pun.un_tty)->write_wait)))
+							wake_up_interruptible(&((ch->ch_pun.un_tty)->write_wait));
+						tty_wakeup(ch->ch_pun.un_tty);
+						n = (ch->ch_tin - ch->ch_tout) & TBUF_MASK;
+
+					} else if ((ch->ch_pun.un_flag & UN_TIME) != 0) {
+						work = 1;
+					}
+				}
+
+
+				/*
+				 *  Determine the max number of bytes
+				 *  this port can send, including
+				 *  packet header overhead.
+				 */
+
+				t = ((ch->ch_s_tsize + ch->ch_s_tpos - ch->ch_s_tin) & 0xffff);
+
+				if (n > t)
+					n = t;
+
+				if (n != 0) {
+					n += (n <= 8 ? 1 : n <= 255 ? 2 : 3);
+
+					tdata[tchan++] = n;
+					ttotal += n;
+				}
+				break;
+
+			/*
+			 *  Close the port.
+			 */
+
+send_close:
+			case CS_SEND_CLOSE:
+				b = set_cmd_header(b, port, 10);
+				if (ch->ch_otype == OTYPE_IMMEDIATE)
+					*b++ = 3;
+				else
+					*b++ = 4;
+
+				ch->ch_state = CS_WAIT_CLOSE;
+				break;
+
+			/*
+			 *  Wait for a previous server request.
+			 */
+
+			case CS_WAIT_OPEN:
+			case CS_WAIT_CANCEL:
+			case CS_WAIT_FAIL:
+			case CS_WAIT_QUERY:
+			case CS_WAIT_CLOSE:
+				break;
+
+			default:
+				pr_info("%s - unexpected channel state (%i)\n",
+					__func__, ch->ch_state);
+			}
+		}
+
+		/*
+		 *  If a module select code is needed, drop one in.  If space
+		 *  was reserved for one, but none is needed, recover the space.
+		 */
+
+		if (mod != nd->nd_tx_module) {
+			if (b != mbuf) {
+				mbuf[-1] = 0xf0 | mod;
+				nd->nd_tx_module = mod;
+			} else {
+				b--;
+			}
+		}
+	}
+
+	/*
+	 *  Adjust "tmax" so that under worst case conditions we do
+	 *  not overflow either the daemon buffer or the internal
+	 *  buffer in the loop that follows.   Leave a safe area
+	 *  of 64 bytes so we start getting asserts before we start
+	 *  losing data or clobbering memory.
+	 */
+
+	n = UIO_MAX - UIO_BASE;
+
+	if (tmax > n)
+		tmax = n;
+
+	tmax -= 64;
+
+	tsafe = tmax;
+
+	/*
+	 *  Allocate space for 5 Module Selects, 1 Sequence Request,
+	 *  and 1 Set TREQ for each active channel.
+	 */
+
+	tmax -= 5 + 3 + 4 * nd->nd_chan_count;
+
+	/*
+	 *  Further reduce "tmax" to the available transmit credit.
+	 *  Note that this is a soft constraint;  The transmit credit
+	 *  can go negative for a time and then recover.
+	 */
+
+	n = nd->nd_tx_deposit - nd->nd_tx_charge - nd->nd_link.lk_header_size;
+
+	if (tmax > n)
+		tmax = n;
+
+	/*
+	 *  Finally reduce tmax by the number of bytes already in
+	 *  the buffer.
+	 */
+
+	tmax -= b - buf;
+
+	/*
+	 *  Suspend data transmit unless every ready channel can send
+	 *  at least 1 character.
+	 */
+	if (tmax < 2 * nd->nd_chan_count) {
+		tsend = 1;
+
+	} else if (tchan > 1 && ttotal > tmax) {
+
+		/*
+		 *  If transmit is limited by the credit budget, find the
+		 *  largest number of characters we can send without driving
+		 *  the credit negative.
+		 */
+
+		long tm = tmax;
+		int tc = tchan;
+		int try;
+
+		tsend = tm / tc;
+
+		for (try = 0; try < 3; try++) {
+			int i;
+			int c = 0;
+
+			for (i = 0; i < tc; i++) {
+				if (tsend < tdata[i])
+					tdata[c++] = tdata[i];
+				else
+					tm -= tdata[i];
+			}
+
+			if (c == tc)
+				break;
+
+			tsend = tm / c;
+
+			if (c == 1)
+				break;
+
+			tc = c;
+		}
+
+		tsend = tm / nd->nd_chan_count;
+
+		if (tsend < 2)
+			tsend = 1;
+
+	} else {
+		/*
+		 *  If no budgetary constraints, or only one channel ready
+		 *  to send, set the character limit to the remaining
+		 *  buffer size.
+		 */
+
+		tsend = tmax;
+	}
+
+	tsend -= (tsend <= 9) ? 1 : (tsend <= 257) ? 2 : 3;
+
+	/*
+	 *  Loop over all channels, sending queued data.
+	 */
+
+	port = 0;
+	ch = nd->nd_chan;
+	used_buffer = tmax;
+
+	for (mod = 0; port < nd->nd_chan_count; mod++) {
+		/*
+		 *  If this is not the current module, enter a module select
+		 *  code in the buffer.
+		 */
+
+		if (mod != nd->nd_tx_module)
+			mbuf = ++b;
+
+		/*
+		 *  Loop to process one module.
+		 */
+
+		maxport = port + 16;
+
+		if (maxport > nd->nd_chan_count)
+			maxport = nd->nd_chan_count;
+
+		for (; port < maxport; port++, ch++) {
+			if (ch->ch_state != CS_READY)
+				continue;
+
+			lastport = port;
+
+			n = (ch->ch_tin - ch->ch_tout) & TBUF_MASK;
+
+			/*
+			 *  If there is data that can be sent, send it.
+			 */
+
+			if (n != 0 && used_buffer > 0) {
+				t = (ch->ch_s_tsize + ch->ch_s_tpos - ch->ch_s_tin) & 0xffff;
+
+				if (n > t)
+					n = t;
+
+				if (n > tsend) {
+					work = 1;
+					n = tsend;
+				}
+
+				if (n > used_buffer) {
+					work = 1;
+					n = used_buffer;
+				}
+
+				if (n <= 0)
+					continue;
+
+				/*
+				 *  Create the correct size transmit header,
+				 *  depending on the amount of data to transmit.
+				 */
+
+				if (n <= 8) {
+
+					b[0] = ((n - 1) << 4) + (port & 0xf);
+					b += 1;
+
+				} else if (n <= 255) {
+
+					b[0] = 0x80 + (port & 0xf);
+					b[1] = n;
+					b += 2;
+
+				} else {
+
+					b[0] = 0x90 + (port & 0xf);
+					put_unaligned_be16(n, b + 1);
+					b += 3;
+				}
+
+				ch->ch_s_tin = (ch->ch_s_tin + n) & 0xffff;
+
+				/*
+				 *  Copy transmit data to the packet.
+				 */
+
+				t = TBUF_MAX - ch->ch_tout;
+
+				if (n >= t) {
+					memcpy(b, ch->ch_tbuf + ch->ch_tout, t);
+					b += t;
+					n -= t;
+					used_buffer -= t;
+					ch->ch_tout = 0;
+				}
+
+				memcpy(b, ch->ch_tbuf + ch->ch_tout, n);
+				b += n;
+				used_buffer -= n;
+				ch->ch_tout += n;
+				n = (ch->ch_tin - ch->ch_tout) & TBUF_MASK;
+			}
+
+			/*
+			 *  Wake any terminal unit process waiting in the
+			 *  dgrp_write routine for low water.
+			 */
+
+			if (n > TBUF_LOW)
+				continue;
+
+			if ((ch->ch_flag & CH_LOW) != 0) {
+				ch->ch_flag &= ~CH_LOW;
+				wake_up_interruptible(&ch->ch_flag_wait);
+			}
+
+			/* selwakeup tty_sel */
+			if (ch->ch_tun.un_open_count) {
+				struct tty_struct *tty = (ch->ch_tun.un_tty);
+
+				if (waitqueue_active(&tty->write_wait))
+					wake_up_interruptible(&tty->write_wait);
+
+				tty_wakeup(tty);
+			}
+
+			if (ch->ch_pun.un_open_count) {
+				struct tty_struct *tty = (ch->ch_pun.un_tty);
+
+				if (waitqueue_active(&tty->write_wait))
+					wake_up_interruptible(&tty->write_wait);
+
+				tty_wakeup(tty);
+			}
+
+			/*
+			 *  Do EMPTY processing.
+			 */
+
+			if (n != 0)
+				continue;
+
+			if ((ch->ch_flag & (CH_EMPTY | CH_DRAIN)) != 0 ||
+			    (ch->ch_pun.un_flag & UN_EMPTY) != 0) {
+				/*
+				 *  If there is still data in the server, ask the server
+				 *  to notify us when its all gone.
+				 */
+
+				if (ch->ch_s_treq != ch->ch_s_tin) {
+					b = set_cmd_header(b, port, 43);
+
+					ch->ch_s_treq = ch->ch_s_tin;
+					put_unaligned_be16(ch->ch_s_treq,
+							   b);
+					b += 2;
+				}
+
+				/*
+				 *  If there is a thread waiting for buffer empty,
+				 *  and we are truly empty, wake the thread.
+				 */
+
+				else if ((ch->ch_flag & CH_EMPTY) != 0 &&
+					(ch->ch_send & RR_TX_BREAK) == 0) {
+					ch->ch_flag &= ~CH_EMPTY;
+
+					wake_up_interruptible(&ch->ch_flag_wait);
+				}
+			}
+		}
+
+		/*
+		 *  If a module select code is needed, drop one in.  If space
+		 *  was reserved for one, but none is needed, recover the space.
+		 */
+
+		if (mod != nd->nd_tx_module) {
+			if (b != mbuf) {
+				mbuf[-1] = 0xf0 | mod;
+				nd->nd_tx_module = mod;
+			} else {
+				b--;
+			}
+		}
+	}
+
+	/*
+	 *  Send a synchronization sequence associated with the last open
+	 *  channel that sent data, and remember the time when the data was
+	 *  sent.
+	 */
+
+	in = nd->nd_seq_in;
+
+	if ((send_sync || nd->nd_seq_wait[in] != 0) && lastport >= 0) {
+		u8 *bb = b;
+
+		/*
+		 * Attempt the use the port that really wanted the sync.
+		 * This gets around a race condition where the "lastport" is in
+		 * the middle of the close() routine, and by the time we
+		 * send this command, it will have already acked the close, and
+		 * thus not send the sync response.
+		 */
+		if (wanted_sync_port >= 0)
+			lastport = wanted_sync_port;
+		/*
+		 * Set a flag just in case the port is in the middle of a close,
+		 * it will not be permitted to actually close until we get an
+		 * sync response, and clear the flag there.
+		 */
+		ch = nd->nd_chan + lastport;
+		ch->ch_flag |= CH_WAITING_SYNC;
+
+		mod = lastport >> 4;
+
+		if (mod != nd->nd_tx_module) {
+			bb[0] = 0xf0 + mod;
+			bb += 1;
+
+			nd->nd_tx_module = mod;
+		}
+
+		bb = set_cmd_header(bb, lastport, 12);
+		*bb++ = in;
+
+		nd->nd_seq_size[in] = bb - buf;
+		nd->nd_seq_time[in] = jiffies;
+
+		if (++in >= SEQ_MAX)
+			in = 0;
+
+		if (in != nd->nd_seq_out) {
+			b = bb;
+			nd->nd_seq_in = in;
+			nd->nd_unack += b - buf;
+		}
+	}
+
+	/*
+	 *  If there are no open ports, a sync cannot be sent.
+	 *  There is nothing left to wait for anyway, so wake any
+	 *  thread waiting for an acknowledgement.
+	 */
+
+	else if (nd->nd_seq_wait[in] != 0) {
+		nd->nd_seq_wait[in] = 0;
+
+		wake_up_interruptible(&nd->nd_seq_wque[in]);
+	}
+
+	/*
+	 *  If there is no traffic for an interval of IDLE_MAX, then
+	 *  send a single byte packet.
+	 */
+
+	if (b != buf) {
+		nd->nd_tx_time = jiffies;
+	} else if ((ulong)(jiffies - nd->nd_tx_time) >= IDLE_MAX) {
+		*b++ = 0xf0 | nd->nd_tx_module;
+		nd->nd_tx_time = jiffies;
+	}
+
+	n = b - buf;
+
+	if (n >= tsafe)
+		pr_info("%s - n(%i) >= tsafe(%i)\n",
+			__func__, n, tsafe);
+
+	if (tsend < 0)
+		dgrp_dump(buf, n);
+
+	nd->nd_tx_work = work;
+
+	return n;
+}
+
+/*
+ * dgrp_net_read()
+ * Data to be sent TO the PortServer from the "async." half of the driver.
+ */
+static ssize_t dgrp_net_read(struct file *file, char __user *buf, size_t count,
+			     loff_t *ppos)
+{
+	struct nd_struct *nd;
+	long n;
+	u8 *local_buf;
+	u8 *b;
+	ssize_t rtn;
+
+	/*
+	 *  Get the node pointer, and quit if it doesn't exist.
+	 */
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		return -ENXIO;
+
+	if (count < UIO_MIN)
+		return -EINVAL;
+
+	/*
+	 *  Only one read/write operation may be in progress at
+	 *  any given time.
+	 */
+
+	/*
+	 *  Grab the NET lock.
+	 */
+	down(&nd->nd_net_semaphore);
+
+	nd->nd_read_count++;
+
+	nd->nd_tx_ready = 0;
+
+	/*
+	 *  Determine the effective size of the buffer.
+	 */
+
+	if (nd->nd_remain > UIO_BASE)
+		pr_info_ratelimited("%s - nd_remain(%i) > UIO_BASE\n",
+				    __func__, nd->nd_remain);
+
+	b = local_buf = nd->nd_iobuf + UIO_BASE;
+
+	/*
+	 *  Generate data according to the node state.
+	 */
+
+	switch (nd->nd_state) {
+	/*
+	 *  Initialize the connection.
+	 */
+
+	case NS_IDLE:
+		if (nd->nd_mon_buf)
+			dgrp_monitor_reset(nd);
+
+		/*
+		 *  Request a Product ID Packet.
+		 */
+
+		b[0] = 0xfb;
+		b[1] = 0x01;
+		b += 2;
+
+		nd->nd_expect |= NR_IDENT;
+
+		/*
+		 *  Request a Server Capability ID Response.
+		 */
+
+		b[0] = 0xfb;
+		b[1] = 0x02;
+		b += 2;
+
+		nd->nd_expect |= NR_CAPABILITY;
+
+		/*
+		 *  Request a Server VPD Response.
+		 */
+
+		b[0] = 0xfb;
+		b[1] = 0x18;
+		b += 2;
+
+		nd->nd_expect |= NR_VPD;
+
+		nd->nd_state = NS_WAIT_QUERY;
+		break;
+
+	/*
+	 *  We do serious communication with the server only in
+	 *  the READY state.
+	 */
+
+	case NS_READY:
+		b = dgrp_send(nd, count) + local_buf;
+		break;
+
+	/*
+	 *  Send off an error after receiving a bogus message
+	 *  from the server.
+	 */
+
+	case NS_SEND_ERROR:
+		n = strlen(nd->nd_error);
+
+		b[0] = 0xff;
+		b[1] = n;
+		memcpy(b + 2, nd->nd_error, n);
+		b += 2 + n;
+
+		dgrp_net_idle(nd);
+		/*
+		 *  Set the active port count to zero.
+		 */
+		dgrp_chan_count(nd, 0);
+		break;
+
+	default:
+		break;
+	}
+
+	n = b - local_buf;
+
+	if (n != 0) {
+		nd->nd_send_count++;
+
+		nd->nd_tx_byte   += n + nd->nd_link.lk_header_size;
+		nd->nd_tx_charge += n + nd->nd_link.lk_header_size;
+	}
+
+	rtn = copy_to_user((void __user *)buf, local_buf, n);
+	if (rtn) {
+		rtn = -EFAULT;
+		goto done;
+	}
+
+	*ppos += n;
+
+	rtn = n;
+
+	if (nd->nd_mon_buf)
+		dgrp_monitor_data(nd, RPDUMP_CLIENT, local_buf, n);
+
+	/*
+	 *  Release the NET lock.
+	 */
+done:
+	up(&nd->nd_net_semaphore);
+
+	return rtn;
+}
+
+/**
+ * dgrp_receive() -- decode data packets received from the remote PortServer.
+ * @nd: pointer to a node structure
+ */
+static void dgrp_receive(struct nd_struct *nd)
+{
+	struct ch_struct *ch;
+	u8 *buf;
+	u8 *b;
+	u8 *dbuf;
+	char *error;
+	long port;
+	long dlen;
+	long plen;
+	long remain;
+	long n;
+	long mlast;
+	long elast;
+	long mstat;
+	long estat;
+
+	char ID[3];
+
+	nd->nd_tx_time = jiffies;
+
+	ID_TO_CHAR(nd->nd_ID, ID);
+
+	b = buf = nd->nd_iobuf;
+	remain = nd->nd_remain;
+
+	/*
+	 *  Loop to process Realport protocol packets.
+	 */
+
+	while (remain > 0) {
+		int n0 = b[0] >> 4;
+		int n1 = b[0] & 0x0f;
+
+		if (n0 <= 12) {
+			port = (nd->nd_rx_module << 4) + n1;
+
+			if (port >= nd->nd_chan_count) {
+				error = "Improper Port Number";
+				goto prot_error;
+			}
+
+			ch = nd->nd_chan + port;
+		} else {
+			port = -1;
+			ch = NULL;
+		}
+
+		/*
+		 *  Process by major packet type.
+		 */
+
+		switch (n0) {
+
+		/*
+		 *  Process 1-byte header data packet.
+		 */
+
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+		case 6:
+		case 7:
+			dlen = n0 + 1;
+			plen = dlen + 1;
+
+			dbuf = b + 1;
+			goto data;
+
+		/*
+		 *  Process 2-byte header data packet.
+		 */
+
+		case 8:
+			if (remain < 3)
+				goto done;
+
+			dlen = b[1];
+			plen = dlen + 2;
+
+			dbuf = b + 2;
+			goto data;
+
+		/*
+		 *  Process 3-byte header data packet.
+		 */
+
+		case 9:
+			if (remain < 4)
+				goto done;
+
+			dlen = get_unaligned_be16(b + 1);
+			plen = dlen + 3;
+
+			dbuf = b + 3;
+
+		/*
+		 *  Common packet handling code.
+		 */
+
+data:
+			nd->nd_tx_work = 1;
+
+			/*
+			 *  Otherwise data should appear only when we are
+			 *  in the CS_READY state.
+			 */
+
+			if (ch->ch_state < CS_READY) {
+				error = "Data received before RWIN established";
+				goto prot_error;
+			}
+
+			/*
+			 *  Assure that the data received is within the
+			 *  allowable window.
+			 */
+
+			n = (ch->ch_s_rwin - ch->ch_s_rin) & 0xffff;
+
+			if (dlen > n) {
+				error = "Receive data overrun";
+				goto prot_error;
+			}
+
+			/*
+			 *  If we received 3 or less characters,
+			 *  assume it is a human typing, and set RTIME
+			 *  to 10 milliseconds.
+			 *
+			 *  If we receive 10 or more characters,
+			 *  assume its not a human typing, and set RTIME
+			 *  to 100 milliseconds.
+			 */
+
+			if (ch->ch_edelay != DGRP_RTIME) {
+				if (ch->ch_rtime != ch->ch_edelay) {
+					ch->ch_rtime = ch->ch_edelay;
+					ch->ch_flag |= CH_PARAM;
+				}
+			} else if (dlen <= 3) {
+				if (ch->ch_rtime != 10) {
+					ch->ch_rtime = 10;
+					ch->ch_flag |= CH_PARAM;
+				}
+			} else {
+				if (ch->ch_rtime != DGRP_RTIME) {
+					ch->ch_rtime = DGRP_RTIME;
+					ch->ch_flag |= CH_PARAM;
+				}
+			}
+
+			/*
+			 *  If a portion of the packet is outside the
+			 *  buffer, shorten the effective length of the
+			 *  data packet to be the amount of data received.
+			 */
+
+			if (remain < plen)
+				dlen -= plen - remain;
+
+			/*
+			 *  Detect if receive flush is now complete.
+			 */
+
+			if ((ch->ch_flag & CH_RX_FLUSH) != 0 &&
+			    ((ch->ch_flush_seq - nd->nd_seq_out) & SEQ_MASK) >=
+			    ((nd->nd_seq_in    - nd->nd_seq_out) & SEQ_MASK)) {
+				ch->ch_flag &= ~CH_RX_FLUSH;
+			}
+
+			/*
+			 *  If we are ready to receive, move the data into
+			 *  the receive buffer.
+			 */
+
+			ch->ch_s_rin = (ch->ch_s_rin + dlen) & 0xffff;
+
+			if (ch->ch_state == CS_READY &&
+			    (ch->ch_tun.un_open_count != 0) &&
+			    (ch->ch_tun.un_flag & UN_CLOSING) == 0 &&
+			    (ch->ch_cflag & CF_CREAD) != 0 &&
+			    (ch->ch_flag & (CH_BAUD0 | CH_RX_FLUSH)) == 0 &&
+			    (ch->ch_send & RR_RX_FLUSH) == 0) {
+
+				if (ch->ch_rin + dlen >= RBUF_MAX) {
+					n = RBUF_MAX - ch->ch_rin;
+
+					memcpy(ch->ch_rbuf + ch->ch_rin, dbuf, n);
+
+					ch->ch_rin = 0;
+					dbuf += n;
+					dlen -= n;
+				}
+
+				memcpy(ch->ch_rbuf + ch->ch_rin, dbuf, dlen);
+
+				ch->ch_rin += dlen;
+
+
+				/*
+				 *  If we are not in fastcook mode, or
+				 *  if there is a fastcook thread
+				 *  waiting for data, send the data to
+				 *  the line discipline.
+				 */
+
+				if ((ch->ch_flag & CH_FAST_READ) == 0 ||
+				    ch->ch_inwait != 0) {
+					dgrp_input(ch);
+				}
+
+				/*
+				 *  If there is a read thread waiting
+				 *  in select, and we are in fastcook
+				 *  mode, wake him up.
+				 */
+
+				if (waitqueue_active(&ch->ch_tun.un_tty->read_wait) &&
+				    (ch->ch_flag & CH_FAST_READ) != 0)
+					wake_up_interruptible(&ch->ch_tun.un_tty->read_wait);
+
+				/*
+				 * Wake any thread waiting in the
+				 * fastcook loop.
+				 */
+
+				if ((ch->ch_flag & CH_INPUT) != 0) {
+					ch->ch_flag &= ~CH_INPUT;
+
+					wake_up_interruptible(&ch->ch_flag_wait);
+				}
+			}
+
+			/*
+			 *  Fabricate and insert a data packet header to
+			 *  preceed the remaining data when it comes in.
+			 */
+
+			if (remain < plen) {
+				dlen = plen - remain;
+				b = buf;
+
+				b[0] = 0x90 + n1;
+				put_unaligned_be16(dlen, b + 1);
+
+				remain = 3;
+				goto done;
+			}
+			break;
+
+		/*
+		 *  Handle Window Sequence packets.
+		 */
+
+		case 10:
+			plen = 3;
+			if (remain < plen)
+				goto done;
+
+			nd->nd_tx_work = 1;
+
+			{
+				ushort tpos   = get_unaligned_be16(b + 1);
+
+				ushort ack    = (tpos          - ch->ch_s_tpos) & 0xffff;
+				ushort unack  = (ch->ch_s_tin  - ch->ch_s_tpos) & 0xffff;
+				ushort notify = (ch->ch_s_treq - ch->ch_s_tpos) & 0xffff;
+
+				if (ch->ch_state < CS_READY || ack > unack) {
+					error = "Improper Window Sequence";
+					goto prot_error;
+				}
+
+				ch->ch_s_tpos = tpos;
+
+				if (notify <= ack)
+					ch->ch_s_treq = tpos;
+			}
+			break;
+
+		/*
+		 *  Handle Command response packets.
+		 */
+
+		case 11:
+
+			/*
+			 * RealPort engine fix - 03/11/2004
+			 *
+			 * This check did not used to be here.
+			 *
+			 * We were using b[1] without verifying that the data
+			 * is actually there and valid. On a split packet, it
+			 * might not be yet.
+			 *
+			 * NOTE:  I have never actually seen the failure happen
+			 *        under Linux,  but since I have seen it occur
+			 *        under both Solaris and HP-UX,  the assumption
+			 *        is that it *could* happen here as well...
+			 */
+			if (remain < 2)
+				goto done;
+
+
+			switch (b[1]) {
+
+			/*
+			 *  Handle Open Response.
+			 */
+
+			case 11:
+				plen = 6;
+				if (remain < plen)
+					goto done;
+
+				nd->nd_tx_work = 1;
+
+				{
+					int req = b[2];
+					int resp = b[3];
+					port = get_unaligned_be16(b + 4);
+
+					if (port >= nd->nd_chan_count) {
+						error = "Open channel number out of range";
+						goto prot_error;
+					}
+
+					ch = nd->nd_chan + port;
+
+					/*
+					 *  How we handle an open response depends primarily
+					 *  on our current channel state.
+					 */
+
+					switch (ch->ch_state) {
+					case CS_IDLE:
+
+						/*
+						 *  Handle a delayed open.
+						 */
+
+						if (ch->ch_otype_waiting != 0 &&
+						    req == ch->ch_otype_waiting &&
+						    resp == 0) {
+							ch->ch_otype = req;
+							ch->ch_otype_waiting = 0;
+							ch->ch_state = CS_SEND_QUERY;
+							break;
+						}
+						goto open_error;
+
+					case CS_WAIT_OPEN:
+
+						/*
+						 *  Handle the open response.
+						 */
+
+						if (req == ch->ch_otype) {
+							switch (resp) {
+
+							/*
+							 *  On successful response, open the
+							 *  port and proceed normally.
+							 */
+
+							case 0:
+								ch->ch_state = CS_SEND_QUERY;
+								break;
+
+							/*
+							 *  On a busy response to a persistent open,
+							 *  remember that the open is pending.
+							 */
+
+							case 1:
+							case 2:
+								if (req != OTYPE_IMMEDIATE) {
+									ch->ch_otype_waiting = req;
+									ch->ch_state = CS_IDLE;
+									break;
+								}
+
+							/*
+							 *  Otherwise the server open failed.  If
+							 *  the Unix port is open, hang it up.
+							 */
+
+							default:
+								if (ch->ch_open_count != 0) {
+									ch->ch_flag |= CH_HANGUP;
+									dgrp_carrier(ch);
+									ch->ch_state = CS_IDLE;
+									break;
+								}
+
+								ch->ch_open_error = resp;
+								ch->ch_state = CS_IDLE;
+
+								wake_up_interruptible(&ch->ch_flag_wait);
+							}
+							break;
+						}
+
+						/*
+						 *  Handle delayed response arrival preceeding
+						 *  the open response we are waiting for.
+						 */
+
+						if (ch->ch_otype_waiting != 0 &&
+						    req == ch->ch_otype_waiting &&
+						    resp == 0) {
+							ch->ch_otype = ch->ch_otype_waiting;
+							ch->ch_otype_waiting = 0;
+							ch->ch_state = CS_WAIT_FAIL;
+							break;
+						}
+						goto open_error;
+
+
+					case CS_WAIT_FAIL:
+
+						/*
+						 *  Handle response to immediate open arriving
+						 *  after a delayed open success.
+						 */
+
+						if (req == OTYPE_IMMEDIATE) {
+							ch->ch_state = CS_SEND_QUERY;
+							break;
+						}
+						goto open_error;
+
+
+					case CS_WAIT_CANCEL:
+						/*
+						 *  Handle delayed open response arriving before
+						 *  the cancel response.
+						 */
+
+						if (req == ch->ch_otype_waiting &&
+						    resp == 0) {
+							ch->ch_otype_waiting = 0;
+							break;
+						}
+
+						/*
+						 *  Handle cancel response.
+						 */
+
+						if (req == 4 && resp == 0) {
+							ch->ch_otype_waiting = 0;
+							ch->ch_state = CS_IDLE;
+							break;
+						}
+						goto open_error;
+
+
+					case CS_WAIT_CLOSE:
+						/*
+						 *  Handle a successful response to a port
+						 *  close.
+						 */
+
+						if (req >= 3) {
+							ch->ch_state = CS_IDLE;
+							break;
+						}
+						goto open_error;
+
+open_error:
+					default:
+						{
+							error = "Improper Open Response";
+							goto prot_error;
+						}
+					}
+				}
+				break;
+
+			/*
+			 *  Handle Synchronize Response.
+			 */
+
+			case 13:
+				plen = 3;
+				if (remain < plen)
+					goto done;
+				{
+					int seq = b[2];
+					int s;
+
+					/*
+					 * If channel was waiting for this sync response,
+					 * unset the flag, and wake up anyone waiting
+					 * on the event.
+					 */
+					if (ch->ch_flag & CH_WAITING_SYNC) {
+						ch->ch_flag &= ~(CH_WAITING_SYNC);
+						wake_up_interruptible(&ch->ch_flag_wait);
+					}
+
+					if (((seq - nd->nd_seq_out) & SEQ_MASK) >=
+					    ((nd->nd_seq_in - nd->nd_seq_out) & SEQ_MASK)) {
+						break;
+					}
+
+					for (s = nd->nd_seq_out;; s = (s + 1) & SEQ_MASK) {
+						if (nd->nd_seq_wait[s] != 0) {
+							nd->nd_seq_wait[s] = 0;
+
+							wake_up_interruptible(&nd->nd_seq_wque[s]);
+						}
+
+						nd->nd_unack -= nd->nd_seq_size[s];
+
+						if (s == seq)
+							break;
+					}
+
+					nd->nd_seq_out = (seq + 1) & SEQ_MASK;
+				}
+				break;
+
+			/*
+			 *  Handle Sequence Response.
+			 */
+
+			case 15:
+				plen = 6;
+				if (remain < plen)
+					goto done;
+
+				{
+				/* Record that we have received the Sequence
+				 * Response, but we aren't interested in the
+				 * sequence numbers.  We were using RIN like it
+				 * was ROUT and that was causing problems,
+				 * fixed 7-13-2001 David Fries. See comment in
+				 * drp.h for ch_s_rin variable.
+					int rin = get_unaligned_be16(b + 2);
+					int tpos = get_unaligned_be16(b + 4);
+				*/
+
+					ch->ch_send   &= ~RR_SEQUENCE;
+					ch->ch_expect &= ~RR_SEQUENCE;
+				}
+				goto check_query;
+
+			/*
+			 *  Handle Status Response.
+			 */
+
+			case 17:
+				plen = 5;
+				if (remain < plen)
+					goto done;
+
+				{
+					ch->ch_s_elast = get_unaligned_be16(b + 2);
+					ch->ch_s_mlast = b[4];
+
+					ch->ch_expect &= ~RR_STATUS;
+					ch->ch_send   &= ~RR_STATUS;
+
+					/*
+					 *  CH_PHYS_CD is cleared because something _could_ be
+					 *  waiting for the initial sense of carrier... and if
+					 *  carrier is high immediately, we want to be sure to
+					 *  wake them as soon as possible.
+					 */
+					ch->ch_flag &= ~CH_PHYS_CD;
+
+					dgrp_carrier(ch);
+				}
+				goto check_query;
+
+			/*
+			 *  Handle Line Error Response.
+			 */
+
+			case 19:
+				plen = 14;
+				if (remain < plen)
+					goto done;
+
+				break;
+
+			/*
+			 *  Handle Buffer Response.
+			 */
+
+			case 21:
+				plen = 6;
+				if (remain < plen)
+					goto done;
+
+				{
+					ch->ch_s_rsize = get_unaligned_be16(b + 2);
+					ch->ch_s_tsize = get_unaligned_be16(b + 4);
+
+					ch->ch_send   &= ~RR_BUFFER;
+					ch->ch_expect &= ~RR_BUFFER;
+				}
+				goto check_query;
+
+			/*
+			 *  Handle Port Capability Response.
+			 */
+
+			case 23:
+				plen = 32;
+				if (remain < plen)
+					goto done;
+
+				{
+					ch->ch_send   &= ~RR_CAPABILITY;
+					ch->ch_expect &= ~RR_CAPABILITY;
+				}
+
+			/*
+			 *  When all queries are complete, set those parameters
+			 *  derived from the query results, then transition
+			 *  to the READY state.
+			 */
+
+check_query:
+				if (ch->ch_state == CS_WAIT_QUERY &&
+				    (ch->ch_expect & (RR_SEQUENCE |
+							RR_STATUS |
+							RR_BUFFER |
+							RR_CAPABILITY)) == 0) {
+					ch->ch_tmax  = ch->ch_s_tsize / 4;
+
+					if (ch->ch_edelay == DGRP_TTIME)
+						ch->ch_ttime = DGRP_TTIME;
+					else
+						ch->ch_ttime = ch->ch_edelay;
+
+					ch->ch_rmax = ch->ch_s_rsize / 4;
+
+					if (ch->ch_edelay == DGRP_RTIME)
+						ch->ch_rtime = DGRP_RTIME;
+					else
+						ch->ch_rtime = ch->ch_edelay;
+
+					ch->ch_rlow  = 2 * ch->ch_s_rsize / 8;
+					ch->ch_rhigh = 6 * ch->ch_s_rsize / 8;
+
+					ch->ch_state = CS_READY;
+
+					nd->nd_tx_work = 1;
+					wake_up_interruptible(&ch->ch_flag_wait);
+
+				}
+				break;
+
+			default:
+				goto decode_error;
+			}
+			break;
+
+		/*
+		 *  Handle Events.
+		 */
+
+		case 12:
+			plen = 4;
+			if (remain < plen)
+				goto done;
+
+			mlast = ch->ch_s_mlast;
+			elast = ch->ch_s_elast;
+
+			mstat = ch->ch_s_mlast = b[1];
+			estat = ch->ch_s_elast = get_unaligned_be16(b + 2);
+
+			/*
+			 *  Handle modem changes.
+			 */
+
+			if (((mstat ^ mlast) & DM_CD) != 0)
+				dgrp_carrier(ch);
+
+
+			/*
+			 *  Handle received break.
+			 */
+
+			if ((estat & ~elast & EV_RXB) != 0 &&
+			    (ch->ch_tun.un_open_count != 0) &&
+			    I_BRKINT(ch->ch_tun.un_tty) &&
+			    !(I_IGNBRK(ch->ch_tun.un_tty))) {
+
+				tty_buffer_request_room(ch->ch_tun.un_tty, 1);
+				tty_insert_flip_char(ch->ch_tun.un_tty, 0, TTY_BREAK);
+				tty_flip_buffer_push(ch->ch_tun.un_tty);
+
+			}
+
+			/*
+			 *  On transmit break complete, if more break traffic
+			 *  is waiting then send it.  Otherwise wake any threads
+			 *  waiting for transmitter empty.
+			 */
+
+			if ((~estat & elast & EV_TXB) != 0 &&
+			    (ch->ch_expect & RR_TX_BREAK) != 0) {
+
+				nd->nd_tx_work = 1;
+
+				ch->ch_expect &= ~RR_TX_BREAK;
+
+				if (ch->ch_break_time != 0) {
+					ch->ch_send |= RR_TX_BREAK;
+				} else {
+					ch->ch_send &= ~RR_TX_BREAK;
+					ch->ch_flag &= ~CH_TX_BREAK;
+					wake_up_interruptible(&ch->ch_flag_wait);
+				}
+			}
+			break;
+
+		case 13:
+		case 14:
+			error = "Unrecognized command";
+			goto prot_error;
+
+		/*
+		 *  Decode Special Codes.
+		 */
+
+		case 15:
+			switch (n1) {
+			/*
+			 *  One byte module select.
+			 */
+
+			case 0:
+			case 1:
+			case 2:
+			case 3:
+			case 4:
+			case 5:
+			case 6:
+			case 7:
+				plen = 1;
+				nd->nd_rx_module = n1;
+				break;
+
+			/*
+			 *  Two byte module select.
+			 */
+
+			case 8:
+				plen = 2;
+				if (remain < plen)
+					goto done;
+
+				nd->nd_rx_module = b[1];
+				break;
+
+			/*
+			 *  ID Request packet.
+			 */
+
+			case 11:
+				if (remain < 4)
+					goto done;
+
+				plen = get_unaligned_be16(b + 2);
+
+				if (plen < 12 || plen > 1000) {
+					error = "Response Packet length error";
+					goto prot_error;
+				}
+
+				nd->nd_tx_work = 1;
+
+				switch (b[1]) {
+				/*
+				 *  Echo packet.
+				 */
+
+				case 0:
+					nd->nd_send |= NR_ECHO;
+					break;
+
+				/*
+				 *  ID Response packet.
+				 */
+
+				case 1:
+					nd->nd_send |= NR_IDENT;
+					break;
+
+				/*
+				 *  ID Response packet.
+				 */
+
+				case 32:
+					nd->nd_send |= NR_PASSWORD;
+					break;
+
+				}
+				break;
+
+			/*
+			 *  Various node-level response packets.
+			 */
+
+			case 12:
+				if (remain < 4)
+					goto done;
+
+				plen = get_unaligned_be16(b + 2);
+
+				if (plen < 4 || plen > 1000) {
+					error = "Response Packet length error";
+					goto prot_error;
+				}
+
+				nd->nd_tx_work = 1;
+
+				switch (b[1]) {
+				/*
+				 *  Echo packet.
+				 */
+
+				case 0:
+					nd->nd_expect &= ~NR_ECHO;
+					break;
+
+				/*
+				 *  Product Response Packet.
+				 */
+
+				case 1:
+					{
+						int desclen;
+
+						nd->nd_hw_ver = (b[8] << 8) | b[9];
+						nd->nd_sw_ver = (b[10] << 8) | b[11];
+						nd->nd_hw_id = b[6];
+						desclen = ((plen - 12) > MAX_DESC_LEN) ? MAX_DESC_LEN :
+							plen - 12;
+
+						if (desclen <= 0) {
+							error = "Response Packet desclen error";
+							goto prot_error;
+						}
+
+						strncpy(nd->nd_ps_desc, b + 12, desclen);
+						nd->nd_ps_desc[desclen] = 0;
+					}
+
+					nd->nd_expect &= ~NR_IDENT;
+					break;
+
+				/*
+				 *  Capability Response Packet.
+				 */
+
+				case 2:
+					{
+						int nn = get_unaligned_be16(b + 4);
+
+						if (nn > CHAN_MAX)
+							nn = CHAN_MAX;
+
+						dgrp_chan_count(nd, nn);
+					}
+
+					nd->nd_expect &= ~NR_CAPABILITY;
+					break;
+
+				/*
+				 *  VPD Response Packet.
+				 */
+
+				case 15:
+					/*
+					 * NOTE: case 15 is here ONLY because the EtherLite
+					 * is broken, and sends a response to 24 back as 15.
+					 * To resolve this, the EtherLite firmware is now
+					 * fixed to send back 24 correctly, but, for backwards
+					 * compatibility, we now have reserved 15 for the
+					 * bad EtherLite response to 24 as well.
+					 */
+
+					/* Fallthru! */
+
+				case 24:
+
+					/*
+					 * If the product doesn't support VPD,
+					 * it will send back a null IDRESP,
+					 * which is a length of 4 bytes.
+					 */
+					if (plen > 4) {
+						memcpy(nd->nd_vpd, b + 4, min(plen - 4, (long) VPDSIZE));
+						nd->nd_vpd_len = min(plen - 4, (long) VPDSIZE);
+					}
+
+					nd->nd_expect &= ~NR_VPD;
+					break;
+
+				default:
+					goto decode_error;
+				}
+
+				if (nd->nd_expect == 0 &&
+				    nd->nd_state == NS_WAIT_QUERY) {
+					nd->nd_state = NS_READY;
+				}
+				break;
+
+			/*
+			 *  Debug packet.
+			 */
+
+			case 14:
+				if (remain < 4)
+					goto done;
+
+				plen = get_unaligned_be16(b + 2) + 4;
+
+				if (plen > 1000) {
+					error = "Debug Packet too large";
+					goto prot_error;
+				}
+
+				if (remain < plen)
+					goto done;
+				break;
+
+			/*
+			 *  Handle reset packet.
+			 */
+
+			case 15:
+				if (remain < 2)
+					goto done;
+
+				plen = 2 + b[1];
+
+				if (remain < plen)
+					goto done;
+
+				nd->nd_tx_work = 1;
+
+				n = b[plen];
+				b[plen] = 0;
+
+				b[plen] = n;
+
+				error = "Client Reset Acknowledge";
+				goto prot_error;
+
+			default:
+				goto decode_error;
+			}
+			break;
+
+		default:
+			goto decode_error;
+		}
+
+		b += plen;
+		remain -= plen;
+	}
+
+	/*
+	 *  When the buffer is exhausted, copy any data left at the
+	 *  top of the buffer back down to the bottom for the next
+	 *  read request.
+	 */
+
+done:
+	if (remain > 0 && b != buf)
+		memcpy(buf, b, remain);
+
+	nd->nd_remain = remain;
+	return;
+
+/*
+ *  Handle a decode error.
+ */
+
+decode_error:
+	error = "Protocol decode error";
+
+/*
+ *  Handle a general protocol error.
+ */
+
+prot_error:
+	nd->nd_remain = 0;
+	nd->nd_state = NS_SEND_ERROR;
+	nd->nd_error = error;
+}
+
+/*
+ * dgrp_net_write() -- write data to the network device.
+ *
+ * A zero byte write indicates that the connection to the RealPort
+ * device has been broken.
+ *
+ * A non-zero write indicates data from the RealPort device.
+ */
+static ssize_t dgrp_net_write(struct file *file, const char __user *buf,
+			      size_t count, loff_t *ppos)
+{
+	struct nd_struct *nd;
+	ssize_t rtn = 0;
+	long n;
+	long total = 0;
+
+	/*
+	 *  Get the node pointer, and quit if it doesn't exist.
+	 */
+	nd = (struct nd_struct *)(file->private_data);
+	if (!nd)
+		return -ENXIO;
+
+	/*
+	 *  Grab the NET lock.
+	 */
+	down(&nd->nd_net_semaphore);
+
+	nd->nd_write_count++;
+
+	/*
+	 *  Handle disconnect.
+	 */
+
+	if (count == 0) {
+		dgrp_net_idle(nd);
+		/*
+		 *  Set the active port count to zero.
+		 */
+		dgrp_chan_count(nd, 0);
+		goto unlock;
+	}
+
+	/*
+	 *  Loop to process entire receive packet.
+	 */
+
+	while (count > 0) {
+		n = UIO_MAX - nd->nd_remain;
+
+		if (n > count)
+			n = count;
+
+		nd->nd_rx_byte += n + nd->nd_link.lk_header_size;
+
+		rtn = copy_from_user(nd->nd_iobuf + nd->nd_remain,
+				     (void __user *) buf + total, n);
+		if (rtn) {
+			rtn = -EFAULT;
+			goto unlock;
+		}
+
+		*ppos += n;
+
+		total += n;
+
+		count -= n;
+
+		if (nd->nd_mon_buf)
+			dgrp_monitor_data(nd, RPDUMP_SERVER,
+					  nd->nd_iobuf + nd->nd_remain, n);
+
+		nd->nd_remain += n;
+
+		dgrp_receive(nd);
+	}
+
+	rtn = total;
+
+unlock:
+	/*
+	 *  Release the NET lock.
+	 */
+	up(&nd->nd_net_semaphore);
+
+	return rtn;
+}
+
+
+/*
+ * dgrp_net_select()
+ *  Determine whether a device is ready to be read or written to, and
+ *  sleep if not.
+ */
+static unsigned int dgrp_net_select(struct file *file,
+				    struct poll_table_struct *table)
+{
+	unsigned int retval = 0;
+	struct nd_struct *nd = file->private_data;
+
+	poll_wait(file, &nd->nd_tx_waitq, table);
+
+	if (nd->nd_tx_ready)
+		retval |= POLLIN | POLLRDNORM; /* Conditionally readable */
+
+	retval |= POLLOUT | POLLWRNORM;        /* Always writeable */
+
+	return retval;
+}
+
+/*
+ * dgrp_net_ioctl
+ *
+ * Implement those functions which allow the network daemon to control
+ * the network parameters in the driver.  The ioctls include ones to
+ * get and set the link speed parameters for the PortServer.
+ */
+static long dgrp_net_ioctl(struct file *file, unsigned int cmd,
+			   unsigned long arg)
+{
+	struct nd_struct  *nd;
+	int    rtn = 0;
+	long   size = _IOC_SIZE(cmd);
+	struct link_struct link;
+
+	nd = file->private_data;
+
+	if (_IOC_DIR(cmd) & _IOC_READ)
+		rtn = access_ok(VERIFY_WRITE, (void __user *) arg, size);
+	else if (_IOC_DIR(cmd) & _IOC_WRITE)
+		rtn = access_ok(VERIFY_READ,  (void __user *) arg, size);
+
+	if (!rtn)
+		return rtn;
+
+	switch (cmd) {
+	case DIGI_SETLINK:
+		if (size != sizeof(struct link_struct))
+			return -EINVAL;
+
+		if (copy_from_user((void *)(&link), (void __user *) arg, size))
+			return -EFAULT;
+
+		if (link.lk_fast_rate < 9600)
+			link.lk_fast_rate = 9600;
+
+		if (link.lk_slow_rate < 2400)
+			link.lk_slow_rate = 2400;
+
+		if (link.lk_fast_rate > 10000000)
+			link.lk_fast_rate = 10000000;
+
+		if (link.lk_slow_rate > link.lk_fast_rate)
+			link.lk_slow_rate = link.lk_fast_rate;
+
+		if (link.lk_fast_delay > 2000)
+			link.lk_fast_delay = 2000;
+
+		if (link.lk_slow_delay > 10000)
+			link.lk_slow_delay = 10000;
+
+		if (link.lk_fast_delay < 60)
+			link.lk_fast_delay = 60;
+
+		if (link.lk_slow_delay < link.lk_fast_delay)
+			link.lk_slow_delay = link.lk_fast_delay;
+
+		if (link.lk_header_size < 2)
+			link.lk_header_size = 2;
+
+		if (link.lk_header_size > 128)
+			link.lk_header_size = 128;
+
+		link.lk_fast_rate /= 8 * 1000 / dgrp_poll_tick;
+		link.lk_slow_rate /= 8 * 1000 / dgrp_poll_tick;
+
+		link.lk_fast_delay /= dgrp_poll_tick;
+		link.lk_slow_delay /= dgrp_poll_tick;
+
+		nd->nd_link = link;
+
+		break;
+
+	case DIGI_GETLINK:
+		if (size != sizeof(struct link_struct))
+			return -EINVAL;
+
+		if (copy_to_user((void __user *)arg, (void *)(&nd->nd_link),
+				 size))
+			return -EFAULT;
+
+		break;
+
+	default:
+		return -EINVAL;
+
+	}
+
+	return 0;
+}
+
+/**
+ * dgrp_poll_handler() -- handler for poll timer
+ *
+ * As each timer expires, it determines (a) whether the "transmit"
+ * waiter needs to be woken up, and (b) whether the poller needs to
+ * be rescheduled.
+ */
+void dgrp_poll_handler(unsigned long arg)
+{
+	struct dgrp_poll_data *poll_data;
+	struct nd_struct *nd;
+	struct link_struct *lk;
+	ulong time;
+	ulong poll_time;
+	ulong freq;
+	ulong lock_flags;
+
+	poll_data = (struct dgrp_poll_data *) arg;
+	freq = 1000 / poll_data->poll_tick;
+	poll_data->poll_round += 17;
+
+	if (poll_data->poll_round >= freq)
+		poll_data->poll_round -= freq;
+
+	/*
+	 * Loop to process all open nodes.
+	 *
+	 * For each node, determine the rate at which it should
+	 * be transmitting data.  Then if the node should wake up
+	 * and transmit data now, enable the net receive select
+	 * to get the transmit going.
+	 */
+
+	list_for_each_entry(nd, &nd_struct_list, list) {
+
+		lk = &nd->nd_link;
+
+		/*
+		 * Decrement statistics.  These are only for use with
+		 * KME, so don't worry that the operations are done
+		 * unlocked, and so the results are occassionally wrong.
+		 */
+
+		nd->nd_read_count -= (nd->nd_read_count +
+				      poll_data->poll_round) / freq;
+		nd->nd_write_count -= (nd->nd_write_count +
+				       poll_data->poll_round) / freq;
+		nd->nd_send_count -= (nd->nd_send_count +
+				      poll_data->poll_round) / freq;
+		nd->nd_tx_byte -= (nd->nd_tx_byte +
+				   poll_data->poll_round) / freq;
+		nd->nd_rx_byte -= (nd->nd_rx_byte +
+				   poll_data->poll_round) / freq;
+
+		/*
+		 * Wake the daemon to transmit data only when there is
+		 * enough byte credit to send data.
+		 *
+		 * The results are approximate because the operations
+		 * are performed unlocked, and we are inspecting
+		 * data asynchronously updated elsewhere.  The whole
+		 * thing is just approximation anyway, so that should
+		 * be okay.
+		 */
+
+		if (lk->lk_slow_rate >= UIO_MAX) {
+
+			nd->nd_delay = 0;
+			nd->nd_rate = UIO_MAX;
+
+			nd->nd_tx_deposit = nd->nd_tx_charge + 3 * UIO_MAX;
+			nd->nd_tx_credit  = 3 * UIO_MAX;
+
+		} else {
+
+			long rate;
+			long delay;
+			long deposit;
+			long charge;
+			long size;
+			long excess;
+
+			long seq_in = nd->nd_seq_in;
+			long seq_out = nd->nd_seq_out;
+
+			/*
+			 * If there are no outstanding packets, run at the
+			 * fastest rate.
+			 */
+
+			if (seq_in == seq_out) {
+				delay = 0;
+				rate = lk->lk_fast_rate;
+			}
+
+			/*
+			 * Otherwise compute the transmit rate based on the
+			 * delay since the oldest packet.
+			 */
+
+			else {
+				/*
+				 * The actual delay is computed as the
+				 * time since the oldest unacknowledged
+				 * packet was sent, minus the time it
+				 * took to send that packet to the server.
+				 */
+
+				delay = ((jiffies - nd->nd_seq_time[seq_out])
+					- (nd->nd_seq_size[seq_out] /
+					lk->lk_fast_rate));
+
+				/*
+				 * If the delay is less than the "fast"
+				 * delay, transmit full speed.  If greater
+				 * than the "slow" delay, transmit at the
+				 * "slow" speed.   In between, interpolate
+				 * between the fast and slow speeds.
+				 */
+
+				rate =
+				  (delay <= lk->lk_fast_delay ?
+				    lk->lk_fast_rate :
+				    delay >= lk->lk_slow_delay ?
+				      lk->lk_slow_rate :
+				      (lk->lk_slow_rate +
+				       (lk->lk_slow_delay - delay) *
+				       (lk->lk_fast_rate - lk->lk_slow_rate) /
+				       (lk->lk_slow_delay - lk->lk_fast_delay)
+				      )
+				  );
+			}
+
+			nd->nd_delay = delay;
+			nd->nd_rate = rate;
+
+			/*
+			 * Increase the transmit credit by depositing the
+			 * current transmit rate.
+			 */
+
+			deposit = nd->nd_tx_deposit;
+			charge  = nd->nd_tx_charge;
+
+			deposit += rate;
+
+			/*
+			 * If the available transmit credit becomes too large,
+			 * reduce the deposit to correct the value.
+			 *
+			 * Too large is the max of:
+			 *		6 times the header size
+			 *		3 times the current transmit rate.
+			 */
+
+			size = 2 * nd->nd_link.lk_header_size;
+
+			if (size < rate)
+				size = rate;
+
+			size *= 3;
+
+			excess = deposit - charge - size;
+
+			if (excess > 0)
+				deposit -= excess;
+
+			nd->nd_tx_deposit = deposit;
+			nd->nd_tx_credit  = deposit - charge;
+
+			/*
+			 * Wake the transmit task only if the transmit credit
+			 * is at least 3 times the transmit header size.
+			 */
+
+			size = 3 * lk->lk_header_size;
+
+			if (nd->nd_tx_credit < size)
+				continue;
+		}
+
+
+		/*
+		 * Enable the READ select to wake the daemon if there
+		 * is useful work for the drp_read routine to perform.
+		 */
+
+		if (waitqueue_active(&nd->nd_tx_waitq) &&
+		    (nd->nd_tx_work != 0 ||
+		    (ulong)(jiffies - nd->nd_tx_time) >= IDLE_MAX)) {
+			nd->nd_tx_ready = 1;
+
+			wake_up_interruptible(&nd->nd_tx_waitq);
+
+			/* not needed */
+			/* nd->nd_flag &= ~ND_SELECT; */
+		}
+	}
+
+
+	/*
+	 * Schedule ourself back at the nominal wakeup interval.
+	 */
+	spin_lock_irqsave(&poll_data->poll_lock, lock_flags);
+
+	poll_data->node_active_count--;
+	if (poll_data->node_active_count > 0) {
+		poll_data->node_active_count++;
+		poll_time = poll_data->timer.expires +
+			poll_data->poll_tick * HZ / 1000;
+
+		time = poll_time - jiffies;
+
+		if (time >= 2 * poll_data->poll_tick)
+			poll_time = jiffies + dgrp_poll_tick * HZ / 1000;
+
+		poll_data->timer.expires = poll_time;
+		add_timer(&poll_data->timer);
+	}
+
+	spin_unlock_irqrestore(&poll_data->poll_lock, lock_flags);
+}
diff --git a/drivers/staging/dgrp/dgrp_ports_ops.c b/drivers/staging/dgrp/dgrp_ports_ops.c
new file mode 100644
index 00000000000..cd1fc208862
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_ports_ops.c
@@ -0,0 +1,170 @@
+/*
+ *
+ * Copyright 1999-2000 Digi International (www.digi.com)
+ *     James Puzzo <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_ports_ops.c
+ *
+ *  Description:
+ *
+ *     Handle the file operations required for the /proc/dgrp/ports/...
+ *     devices.  Basically gathers tty status for the node and returns it.
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+
+#include "dgrp_common.h"
+
+/* File operation declarations */
+static int dgrp_ports_open(struct inode *, struct file *);
+
+static const struct file_operations ports_ops = {
+	.owner   = THIS_MODULE,
+	.open    = dgrp_ports_open,
+	.read    = seq_read,
+	.llseek	 = seq_lseek,
+	.release = seq_release
+};
+
+static struct inode_operations ports_inode_ops = {
+	.permission = dgrp_inode_permission
+};
+
+
+void dgrp_register_ports_hook(struct proc_dir_entry *de)
+{
+	struct nd_struct *node = de->data;
+
+	de->proc_iops = &ports_inode_ops;
+	de->proc_fops = &ports_ops;
+	node->nd_ports_de = de;
+}
+
+static void *dgrp_ports_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	if (*pos == 0)
+		seq_puts(seq, "#num tty_open pr_open tot_wait MSTAT  IFLAG  OFLAG  CFLAG  BPS    DIGIFLAGS\n");
+
+	return pos;
+}
+
+static void *dgrp_ports_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct nd_struct *nd = seq->private;
+
+	if (*pos >= nd->nd_chan_count)
+		return NULL;
+
+	*pos += 1;
+
+	return pos;
+}
+
+static void dgrp_ports_seq_stop(struct seq_file *seq, void *v)
+{
+}
+
+static int dgrp_ports_seq_show(struct seq_file *seq, void *v)
+{
+	loff_t *pos = v;
+	struct nd_struct *nd;
+	struct ch_struct *ch;
+	struct un_struct *tun, *pun;
+	unsigned int totcnt;
+
+	nd = seq->private;
+	if (!nd)
+		return 0;
+
+	if (*pos >= nd->nd_chan_count)
+		return 0;
+
+	ch = &nd->nd_chan[*pos];
+	tun = &ch->ch_tun;
+	pun = &ch->ch_pun;
+
+	/*
+	 * If port is not open and no one is waiting to
+	 * open it, the modem signal values can't be
+	 * trusted, and will be zeroed.
+	 */
+	totcnt = tun->un_open_count +
+		pun->un_open_count +
+		ch->ch_wait_count[0] +
+		ch->ch_wait_count[1] +
+		ch->ch_wait_count[2];
+
+	seq_printf(seq, "%02d      %02d      %02d      %02d     0x%04X 0x%04X 0x%04X 0x%04X %-6d 0x%04X\n",
+		   (int) *pos,
+		   tun->un_open_count,
+		   pun->un_open_count,
+		   ch->ch_wait_count[0] +
+		   ch->ch_wait_count[1] +
+		   ch->ch_wait_count[2],
+		   (totcnt ? ch->ch_s_mlast : 0),
+		   ch->ch_s_iflag,
+		   ch->ch_s_oflag,
+		   ch->ch_s_cflag,
+		   (ch->ch_s_brate ? (1843200 / ch->ch_s_brate) : 0),
+		   ch->ch_digi.digi_flags);
+
+	return 0;
+}
+
+static const struct seq_operations ports_seq_ops = {
+	.start = dgrp_ports_seq_start,
+	.next  = dgrp_ports_seq_next,
+	.stop  = dgrp_ports_seq_stop,
+	.show  = dgrp_ports_seq_show,
+};
+
+/**
+ * dgrp_ports_open -- open the /proc/dgrp/ports/... device
+ * @inode: struct inode *
+ * @file: struct file *
+ *
+ * Open function to open the /proc/dgrp/ports device for a PortServer.
+ * This is the open function for struct file_operations
+ */
+static int dgrp_ports_open(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq;
+	int rtn;
+
+	rtn = seq_open(file, &ports_seq_ops);
+	if (!rtn) {
+		seq = file->private_data;
+		seq->private = PDE(inode)->data;
+	}
+
+	return rtn;
+}
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
new file mode 100644
index 00000000000..28f5c9ab6b4
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -0,0 +1,822 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     James Puzzo  <jamesp at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_specproc.c
+ *
+ *  Description:
+ *
+ *     Handle the "config" proc entry for the linux realport device driver
+ *     and provide slots for the "net" and "mon" devices
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/tty.h>
+#include <linux/sched.h>
+#include <linux/cred.h>
+#include <linux/proc_fs.h>
+#include <linux/ctype.h>
+#include <linux/seq_file.h>
+#include <linux/vmalloc.h>
+
+#include "dgrp_common.h"
+
+static struct dgrp_proc_entry dgrp_table[];
+static struct proc_dir_entry *dgrp_proc_dir_entry;
+
+static int dgrp_add_id(long id);
+static int dgrp_remove_nd(struct nd_struct *nd);
+static void unregister_dgrp_device(struct proc_dir_entry *de);
+static void register_dgrp_device(struct nd_struct *node,
+				 struct proc_dir_entry *root,
+				 void (*register_hook)(struct proc_dir_entry *de));
+
+/* File operation declarations */
+static int dgrp_gen_proc_open(struct inode *, struct file *);
+static int dgrp_gen_proc_close(struct inode *, struct file *);
+static int parse_write_config(char *);
+
+
+static const struct file_operations dgrp_proc_file_ops = {
+	.owner   = THIS_MODULE,
+	.open    = dgrp_gen_proc_open,
+	.release = dgrp_gen_proc_close,
+};
+
+static struct inode_operations proc_inode_ops = {
+	.permission = dgrp_inode_permission
+};
+
+
+static void register_proc_table(struct dgrp_proc_entry *,
+				struct proc_dir_entry *);
+static void unregister_proc_table(struct dgrp_proc_entry *,
+				  struct proc_dir_entry *);
+
+static struct dgrp_proc_entry dgrp_net_table[];
+static struct dgrp_proc_entry dgrp_mon_table[];
+static struct dgrp_proc_entry dgrp_ports_table[];
+static struct dgrp_proc_entry dgrp_dpa_table[];
+
+static ssize_t config_proc_write(struct file *file, const char __user *buffer,
+				 size_t count, loff_t *pos);
+
+static int nodeinfo_proc_open(struct inode *inode, struct file *file);
+static int info_proc_open(struct inode *inode, struct file *file);
+static int config_proc_open(struct inode *inode, struct file *file);
+
+static struct file_operations config_proc_file_ops = {
+	.owner	 = THIS_MODULE,
+	.open	 = config_proc_open,
+	.read	 = seq_read,
+	.llseek	 = seq_lseek,
+	.release = seq_release,
+	.write   = config_proc_write
+};
+
+static struct file_operations info_proc_file_ops = {
+	.owner	 = THIS_MODULE,
+	.open	 = info_proc_open,
+	.read	 = seq_read,
+	.llseek	 = seq_lseek,
+	.release = seq_release,
+};
+
+static struct file_operations nodeinfo_proc_file_ops = {
+	.owner	 = THIS_MODULE,
+	.open	 = nodeinfo_proc_open,
+	.read	 = seq_read,
+	.llseek	 = seq_lseek,
+	.release = seq_release,
+};
+
+static struct dgrp_proc_entry dgrp_table[] = {
+	{
+		.id = DGRP_CONFIG,
+		.name = "config",
+		.mode = 0644,
+		.proc_file_ops = &config_proc_file_ops,
+	},
+	{
+		.id = DGRP_INFO,
+		.name = "info",
+		.mode = 0644,
+		.proc_file_ops = &info_proc_file_ops,
+	},
+	{
+		.id = DGRP_NODEINFO,
+		.name = "nodeinfo",
+		.mode = 0644,
+		.proc_file_ops = &nodeinfo_proc_file_ops,
+	},
+	{
+		.id = DGRP_NETDIR,
+		.name = "net",
+		.mode = 0500,
+		.child = dgrp_net_table
+	},
+	{
+		.id = DGRP_MONDIR,
+		.name = "mon",
+		.mode = 0500,
+		.child = dgrp_mon_table
+	},
+	{
+		.id = DGRP_PORTSDIR,
+		.name = "ports",
+		.mode = 0500,
+		.child = dgrp_ports_table
+	},
+	{
+		.id = DGRP_DPADIR,
+		.name = "dpa",
+		.mode = 0500,
+		.child = dgrp_dpa_table
+	}
+};
+
+static struct proc_dir_entry *net_entry_pointer;
+static struct proc_dir_entry *mon_entry_pointer;
+static struct proc_dir_entry *dpa_entry_pointer;
+static struct proc_dir_entry *ports_entry_pointer;
+
+static struct dgrp_proc_entry dgrp_net_table[] = {
+	{0}
+};
+
+static struct dgrp_proc_entry dgrp_mon_table[] = {
+	{0}
+};
+
+static struct dgrp_proc_entry dgrp_ports_table[] = {
+	{0}
+};
+
+static struct dgrp_proc_entry dgrp_dpa_table[] = {
+	{0}
+};
+
+void dgrp_unregister_proc(void)
+{
+	unregister_proc_table(dgrp_table, dgrp_proc_dir_entry);
+	net_entry_pointer = NULL;
+	mon_entry_pointer = NULL;
+	dpa_entry_pointer = NULL;
+	ports_entry_pointer = NULL;
+
+	if (dgrp_proc_dir_entry) {
+		remove_proc_entry(dgrp_proc_dir_entry->name,
+				  dgrp_proc_dir_entry->parent);
+		dgrp_proc_dir_entry = NULL;
+	}
+
+}
+
+void dgrp_register_proc(void)
+{
+	/*
+	 *	Register /proc/dgrp
+	 */
+	dgrp_proc_dir_entry = proc_create("dgrp", S_IFDIR, NULL,
+					  &dgrp_proc_file_ops);
+	register_proc_table(dgrp_table, dgrp_proc_dir_entry);
+}
+
+/*
+ * /proc/sys support
+ */
+static int dgrp_proc_match(int len, const char *name, struct proc_dir_entry *de)
+{
+	if (!de || !de->low_ino)
+		return 0;
+	if (de->namelen != len)
+		return 0;
+	return !memcmp(name, de->name, len);
+}
+
+
+/*
+ *  Scan the entries in table and add them all to /proc at the position
+ *  referred to by "root"
+ */
+static void register_proc_table(struct dgrp_proc_entry *table,
+				struct proc_dir_entry *root)
+{
+	struct proc_dir_entry *de;
+	int len;
+	mode_t mode;
+
+	for (; table->id; table++) {
+		/* Can't do anything without a proc name. */
+		if (!table->name)
+			continue;
+
+		/* Maybe we can't do anything with it... */
+		if (!table->proc_file_ops &&
+		    !table->child) {
+			pr_warn("dgrp: Can't register %s\n",
+				table->name);
+			continue;
+		}
+
+		len = strlen(table->name);
+		mode = table->mode;
+
+		de = NULL;
+		if (!table->child)
+			mode |= S_IFREG;
+		else {
+			mode |= S_IFDIR;
+			for (de = root->subdir; de; de = de->next) {
+				if (dgrp_proc_match(len, table->name, de))
+					break;
+			}
+			/* If the subdir exists already, de is non-NULL */
+		}
+
+		if (!de) {
+			de = create_proc_entry(table->name, mode, root);
+			if (!de)
+				continue;
+			de->data = (void *) table;
+			if (!table->child) {
+				de->proc_iops = &proc_inode_ops;
+				if (table->proc_file_ops)
+					de->proc_fops = table->proc_file_ops;
+				else
+					de->proc_fops = &dgrp_proc_file_ops;
+			}
+		}
+		table->de = de;
+		if (de->mode & S_IFDIR)
+			register_proc_table(table->child, de);
+
+		if (table->id == DGRP_NETDIR)
+			net_entry_pointer = de;
+
+		if (table->id == DGRP_MONDIR)
+			mon_entry_pointer = de;
+
+		if (table->id == DGRP_DPADIR)
+			dpa_entry_pointer = de;
+
+		if (table->id == DGRP_PORTSDIR)
+			ports_entry_pointer = de;
+	}
+}
+
+/*
+ * Unregister a /proc sysctl table and any subdirectories.
+ */
+static void unregister_proc_table(struct dgrp_proc_entry *table,
+				  struct proc_dir_entry *root)
+{
+	struct proc_dir_entry *de;
+	struct nd_struct *tmp;
+
+	list_for_each_entry(tmp, &nd_struct_list, list) {
+		if ((table == dgrp_net_table) && (tmp->nd_net_de)) {
+			unregister_dgrp_device(tmp->nd_net_de);
+			dgrp_remove_node_class_sysfs_files(tmp);
+		}
+
+		if ((table == dgrp_mon_table) && (tmp->nd_mon_de))
+			unregister_dgrp_device(tmp->nd_mon_de);
+
+		if ((table == dgrp_dpa_table) && (tmp->nd_dpa_de))
+			unregister_dgrp_device(tmp->nd_dpa_de);
+
+		if ((table == dgrp_ports_table) && (tmp->nd_ports_de))
+			unregister_dgrp_device(tmp->nd_ports_de);
+	}
+
+	for (; table->id; table++) {
+		de = table->de;
+
+		if (!de)
+			continue;
+		if (de->mode & S_IFDIR) {
+			if (!table->child) {
+				pr_alert("dgrp: malformed sysctl tree on free\n");
+				continue;
+			}
+			unregister_proc_table(table->child, de);
+
+	/* Don't unregister directories which still have entries */
+			if (de->subdir)
+				continue;
+		}
+
+		/* Don't unregister proc entries that are still being used.. */
+		if ((atomic_read(&de->count)) != 1) {
+			pr_alert("proc entry %s in use, not removing\n",
+				de->name);
+			continue;
+		}
+
+		remove_proc_entry(de->name, de->parent);
+		table->de = NULL;
+	}
+}
+
+static int dgrp_gen_proc_open(struct inode *inode, struct file *file)
+{
+	struct proc_dir_entry *de;
+	struct dgrp_proc_entry *entry;
+	int ret = 0;
+
+	de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
+	if (!de || !de->data) {
+		ret = -ENXIO;
+		goto done;
+	}
+
+	entry = (struct dgrp_proc_entry *) de->data;
+	if (!entry) {
+		ret = -ENXIO;
+		goto done;
+	}
+
+	down(&entry->excl_sem);
+
+	if (entry->excl_cnt)
+		ret = -EBUSY;
+	else
+		entry->excl_cnt++;
+
+	up(&entry->excl_sem);
+
+done:
+	return ret;
+}
+
+static int dgrp_gen_proc_close(struct inode *inode, struct file *file)
+{
+	struct proc_dir_entry *de;
+	struct dgrp_proc_entry *entry;
+
+	de = (struct proc_dir_entry *) PDE(file->f_dentry->d_inode);
+	if (!de || !de->data)
+		goto done;
+
+	entry = (struct dgrp_proc_entry *) de->data;
+	if (!entry)
+		goto done;
+
+	down(&entry->excl_sem);
+
+	if (entry->excl_cnt)
+		entry->excl_cnt = 0;
+
+	up(&entry->excl_sem);
+
+done:
+	return 0;
+}
+
+static void *config_proc_start(struct seq_file *m, loff_t *pos)
+{
+	return seq_list_start_head(&nd_struct_list, *pos);
+}
+
+static void *config_proc_next(struct seq_file *p, void *v, loff_t *pos)
+{
+	return seq_list_next(v, &nd_struct_list, pos);
+}
+
+static void config_proc_stop(struct seq_file *m, void *v)
+{
+}
+
+static int config_proc_show(struct seq_file *m, void *v)
+{
+	struct nd_struct *nd;
+	char tmp_id[4];
+
+	if (v == &nd_struct_list) {
+		seq_puts(m, "#-----------------------------------------------------------------------------\n");
+		seq_puts(m, "#                        Avail\n");
+		seq_puts(m, "# ID  Major  State       Ports\n");
+		return 0;
+	}
+
+	nd = list_entry(v, struct nd_struct, list);
+
+	ID_TO_CHAR(nd->nd_ID, tmp_id);
+
+	seq_printf(m, "  %-2.2s  %-5ld  %-10.10s  %-5d\n",
+		   tmp_id,
+		   nd->nd_major,
+		   ND_STATE_STR(nd->nd_state),
+		   nd->nd_chan_count);
+
+	return 0;
+}
+
+static const struct seq_operations proc_config_ops = {
+	.start = config_proc_start,
+	.next  = config_proc_next,
+	.stop  = config_proc_stop,
+	.show  = config_proc_show
+};
+
+static int config_proc_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &proc_config_ops);
+}
+
+
+/*
+ *  When writing configuration information, each "record" (i.e. each
+ *  write) is treated as an independent request.  See the "parse"
+ *  description for more details.
+ */
+static ssize_t config_proc_write(struct file *file, const char __user *buffer,
+				 size_t count, loff_t *pos)
+{
+	ssize_t retval;
+	char *inbuf, *sp;
+	char *line, *ldelim;
+
+	if (count > 32768)
+		return -EINVAL;
+
+	inbuf = sp = vzalloc(count + 1);
+	if (!inbuf)
+		return -ENOMEM;
+
+	if (copy_from_user(inbuf, buffer, count)) {
+		retval = -EFAULT;
+		goto done;
+	}
+
+	inbuf[count] = 0;
+
+	ldelim = "\n";
+
+	line = strpbrk(sp, ldelim);
+	while (line) {
+		*line = 0;
+		retval = parse_write_config(sp);
+		if (retval)
+			goto done;
+
+		sp = line + 1;
+		line = strpbrk(sp, ldelim);
+	}
+
+	retval = count;
+done:
+	vfree(inbuf);
+	return retval;
+}
+
+/*
+ *  ------------------------------------------------------------------------
+ *
+ *  The following are the functions to parse input
+ *
+ *  ------------------------------------------------------------------------
+ */
+static inline char *skip_past_ws(const char *str)
+{
+	while ((*str) && !isspace(*str))
+		++str;
+
+	return skip_spaces(str);
+}
+
+static int parse_id(char **c, char *cID)
+{
+	int tmp = **c;
+
+	if (isalnum(tmp) || (tmp == '_'))
+		cID[0] = tmp;
+	else
+		return -EINVAL;
+
+	(*c)++; tmp = **c;
+
+	if (isalnum(tmp) || (tmp == '_')) {
+		cID[1] = tmp;
+		(*c)++;
+	} else
+		cID[1] = 0;
+
+	return 0;
+}
+
+static int parse_add_config(char *buf)
+{
+	char *c = buf;
+	int  retval;
+	char cID[2];
+	long ID;
+
+	c = skip_past_ws(c);
+
+	retval = parse_id(&c, cID);
+	if (retval < 0)
+		return retval;
+
+	ID = CHAR_TO_ID(cID);
+
+	c = skip_past_ws(c);
+
+	return dgrp_add_id(ID);
+}
+
+static int parse_del_config(char *buf)
+{
+	char *c = buf;
+	int  retval;
+	struct nd_struct *nd;
+	char cID[2];
+	long ID;
+	long major;
+
+	c = skip_past_ws(c);
+
+	retval = parse_id(&c, cID);
+	if (retval < 0)
+		return retval;
+
+	ID = CHAR_TO_ID(cID);
+
+	c = skip_past_ws(c);
+
+	retval = kstrtol(c, 10, &major);
+	if (retval)
+		return retval;
+
+	nd = nd_struct_get(major);
+	if (!nd)
+		return -EINVAL;
+
+	if ((nd->nd_major != major) || (nd->nd_ID != ID))
+		return -EINVAL;
+
+	return dgrp_remove_nd(nd);
+}
+
+static int parse_chg_config(char *buf)
+{
+	return -EINVAL;
+}
+
+/*
+ *  The passed character buffer represents a single configuration request.
+ *  If the first character is a "+", it is parsed as a request to add a
+ *     PortServer
+ *  If the first character is a "-", it is parsed as a request to delete a
+ *     PortServer
+ *  If the first character is a "*", it is parsed as a request to change a
+ *     PortServer
+ *  Any other character (including whitespace) causes the record to be
+ *     ignored.
+ */
+static int parse_write_config(char *buf)
+{
+	int retval;
+
+	switch (buf[0]) {
+	case '+':
+		retval = parse_add_config(buf);
+		break;
+	case '-':
+		retval = parse_del_config(buf);
+		break;
+	case '*':
+		retval = parse_chg_config(buf);
+		break;
+	default:
+		retval = -EINVAL;
+	}
+
+	return retval;
+}
+
+static int info_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "version: %s\n", DIGI_VERSION);
+	seq_puts(m, "register_with_sysfs: 1\n");
+	seq_printf(m, "rawreadok: 0x%08x\t(%d)\n",
+		   dgrp_rawreadok, dgrp_rawreadok);
+	seq_printf(m, "pollrate: 0x%08x\t(%d)\n",
+		   dgrp_poll_tick, dgrp_poll_tick);
+
+	return 0;
+}
+
+static int info_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, info_proc_show, NULL);
+}
+
+
+static void *nodeinfo_start(struct seq_file *m, loff_t *pos)
+{
+	return seq_list_start_head(&nd_struct_list, *pos);
+}
+
+static void *nodeinfo_next(struct seq_file *p, void *v, loff_t *pos)
+{
+	return seq_list_next(v, &nd_struct_list, pos);
+}
+
+static void nodeinfo_stop(struct seq_file *m, void *v)
+{
+}
+
+static int nodeinfo_show(struct seq_file *m, void *v)
+{
+	struct nd_struct *nd;
+	char hwver[8];
+	char swver[8];
+	char tmp_id[4];
+
+	if (v == &nd_struct_list) {
+		seq_puts(m, "#-----------------------------------------------------------------------------\n");
+		seq_puts(m, "#                 HW       HW   SW\n");
+		seq_puts(m, "# ID  State       Version  ID   Version  Description\n");
+		return 0;
+	}
+
+	nd = list_entry(v, struct nd_struct, list);
+
+	ID_TO_CHAR(nd->nd_ID, tmp_id);
+
+	if (nd->nd_state == NS_READY) {
+		sprintf(hwver, "%d.%d", (nd->nd_hw_ver >> 8) & 0xff,
+			nd->nd_hw_ver & 0xff);
+		sprintf(swver, "%d.%d", (nd->nd_sw_ver >> 8) & 0xff,
+			nd->nd_sw_ver & 0xff);
+		seq_printf(m, "  %-2.2s  %-10.10s  %-7.7s  %-3d  %-7.7s  %-35.35s\n",
+			   tmp_id,
+			   ND_STATE_STR(nd->nd_state),
+			   hwver,
+			   nd->nd_hw_id,
+			   swver,
+			   nd->nd_ps_desc);
+
+	} else {
+		seq_printf(m, "  %-2.2s  %-10.10s\n",
+			   tmp_id,
+			   ND_STATE_STR(nd->nd_state));
+	}
+
+	return 0;
+}
+
+
+static const struct seq_operations nodeinfo_ops = {
+	.start = nodeinfo_start,
+	.next  = nodeinfo_next,
+	.stop  = nodeinfo_stop,
+	.show  = nodeinfo_show
+};
+
+static int nodeinfo_proc_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &nodeinfo_ops);
+}
+
+/**
+ * dgrp_add_id() -- creates new nd struct and adds it to list
+ * @id: id of device to add
+ */
+static int dgrp_add_id(long id)
+{
+	struct nd_struct *nd;
+	int ret;
+	int i;
+
+	nd = kzalloc(sizeof(struct nd_struct), GFP_KERNEL);
+	if (!nd)
+		return -ENOMEM;
+
+	nd->nd_major = 0;
+	nd->nd_ID = id;
+
+	spin_lock_init(&nd->nd_lock);
+
+	init_waitqueue_head(&nd->nd_tx_waitq);
+	init_waitqueue_head(&nd->nd_mon_wqueue);
+	init_waitqueue_head(&nd->nd_dpa_wqueue);
+	for (i = 0; i < SEQ_MAX; i++)
+		init_waitqueue_head(&nd->nd_seq_wque[i]);
+
+	/* setup the structures to get the major number */
+	ret = dgrp_tty_init(nd);
+	if (ret)
+		goto error_out;
+
+	nd->nd_major = nd->nd_serial_ttdriver->major;
+
+	ret = nd_struct_add(nd);
+	if (ret)
+		goto error_out;
+
+	register_dgrp_device(nd, net_entry_pointer, dgrp_register_net_hook);
+	register_dgrp_device(nd, mon_entry_pointer, dgrp_register_mon_hook);
+	register_dgrp_device(nd, dpa_entry_pointer, dgrp_register_dpa_hook);
+	register_dgrp_device(nd, ports_entry_pointer,
+			      dgrp_register_ports_hook);
+
+	return 0;
+
+error_out:
+	kfree(nd);
+	return ret;
+
+}
+
+static int dgrp_remove_nd(struct nd_struct *nd)
+{
+	int ret;
+
+	/* Check to see if the selected structure is in use */
+	if (nd->nd_tty_ref_cnt)
+		return -EBUSY;
+
+	if (nd->nd_net_de) {
+		unregister_dgrp_device(nd->nd_net_de);
+		dgrp_remove_node_class_sysfs_files(nd);
+	}
+
+	if (nd->nd_mon_de)
+		unregister_dgrp_device(nd->nd_mon_de);
+
+	if (nd->nd_ports_de)
+		unregister_dgrp_device(nd->nd_ports_de);
+
+	if (nd->nd_dpa_de)
+		unregister_dgrp_device(nd->nd_dpa_de);
+
+	dgrp_tty_uninit(nd);
+
+	ret = nd_struct_del(nd);
+	if (ret)
+		return ret;
+
+	kfree(nd);
+	return 0;
+}
+
+static void register_dgrp_device(struct nd_struct *node,
+				 struct proc_dir_entry *root,
+				 void (*register_hook)(struct proc_dir_entry *de))
+{
+	char buf[3];
+	struct proc_dir_entry *de;
+
+	ID_TO_CHAR(node->nd_ID, buf);
+
+	de = create_proc_entry(buf, 0600 | S_IFREG, root);
+	if (!de)
+		return;
+
+	de->data = (void *) node;
+
+	if (register_hook)
+		register_hook(de);
+
+}
+
+static void unregister_dgrp_device(struct proc_dir_entry *de)
+{
+	if (!de)
+		return;
+
+	/* Don't unregister proc entries that are still being used.. */
+	if ((atomic_read(&de->count)) != 1) {
+		pr_alert("%s - proc entry %s in use. Not removing.\n",
+			 __func__, de->name);
+		return;
+	}
+
+	remove_proc_entry(de->name, de->parent);
+	de = NULL;
+}
diff --git a/drivers/staging/dgrp/dgrp_sysfs.c b/drivers/staging/dgrp/dgrp_sysfs.c
new file mode 100644
index 00000000000..e5a3c88d016
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_sysfs.c
@@ -0,0 +1,555 @@
+/*
+ * Copyright 2004 Digi International (www.digi.com)
+ *      Scott H Kilau <Scott_Kilau at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+#include "dgrp_common.h"
+
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/serial_reg.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+
+
+#define PORTSERVER_DIVIDEND 1843200
+#define SERIAL_TYPE_NORMAL      1
+#define SERIAL_TYPE_CALLOUT     2
+#define SERIAL_TYPE_XPRINT      3
+
+
+static struct class *dgrp_class;
+static struct device *dgrp_class_nodes_dev;
+static struct device *dgrp_class_global_settings_dev;
+
+
+static ssize_t dgrp_class_version_show(struct class *class,
+				       struct class_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%s\n", DIGI_VERSION);
+}
+static CLASS_ATTR(driver_version, 0400, dgrp_class_version_show, NULL);
+
+
+static ssize_t dgrp_class_register_with_sysfs_show(struct device *c,
+						   struct device_attribute *attr,
+						   char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "1\n");
+}
+static DEVICE_ATTR(register_with_sysfs, 0400,
+		   dgrp_class_register_with_sysfs_show, NULL);
+
+
+static ssize_t dgrp_class_rawreadok_show(struct device *c,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", dgrp_rawreadok);
+}
+static ssize_t dgrp_class_rawreadok_store(struct device *c,
+					  struct device_attribute *attr,
+					  const char *buf, size_t count)
+{
+	sscanf(buf, "0x%x\n", &dgrp_rawreadok);
+	return count;
+}
+static DEVICE_ATTR(rawreadok, 0600, dgrp_class_rawreadok_show,
+		   dgrp_class_rawreadok_store);
+
+
+static ssize_t dgrp_class_pollrate_show(struct device *c,
+					struct device_attribute *attr,
+					char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", dgrp_poll_tick);
+}
+
+static ssize_t dgrp_class_pollrate_store(struct device *c,
+					 struct device_attribute *attr,
+					 const char *buf, size_t count)
+{
+	sscanf(buf, "0x%x\n", &dgrp_poll_tick);
+	return count;
+}
+static DEVICE_ATTR(pollrate, 0600, dgrp_class_pollrate_show,
+		   dgrp_class_pollrate_store);
+
+static struct attribute *dgrp_sysfs_global_settings_entries[] = {
+	&dev_attr_pollrate.attr,
+	&dev_attr_rawreadok.attr,
+	&dev_attr_register_with_sysfs.attr,
+	NULL
+};
+
+
+static struct attribute_group dgrp_global_settings_attribute_group = {
+	.name = NULL,
+	.attrs = dgrp_sysfs_global_settings_entries,
+};
+
+
+
+void dgrp_create_class_sysfs_files(void)
+{
+	int ret = 0;
+	int max_majors = 1U << (32 - MINORBITS);
+
+	dgrp_class = class_create(THIS_MODULE, "digi_realport");
+	ret = class_create_file(dgrp_class, &class_attr_driver_version);
+
+	dgrp_class_global_settings_dev = device_create(dgrp_class, NULL,
+		MKDEV(0, max_majors + 1), NULL, "driver_settings");
+
+	ret = sysfs_create_group(&dgrp_class_global_settings_dev->kobj,
+		&dgrp_global_settings_attribute_group);
+	if (ret) {
+		pr_alert("%s: failed to create sysfs global settings device attributes.\n",
+			__func__);
+		sysfs_remove_group(&dgrp_class_global_settings_dev->kobj,
+			&dgrp_global_settings_attribute_group);
+		return;
+	}
+
+	dgrp_class_nodes_dev = device_create(dgrp_class, NULL,
+		MKDEV(0, max_majors + 2), NULL, "nodes");
+
+}
+
+
+void dgrp_remove_class_sysfs_files(void)
+{
+	struct nd_struct *nd;
+	int max_majors = 1U << (32 - MINORBITS);
+
+	list_for_each_entry(nd, &nd_struct_list, list)
+		dgrp_remove_node_class_sysfs_files(nd);
+
+	sysfs_remove_group(&dgrp_class_global_settings_dev->kobj,
+		&dgrp_global_settings_attribute_group);
+
+	class_remove_file(dgrp_class, &class_attr_driver_version);
+
+	device_destroy(dgrp_class, MKDEV(0, max_majors + 1));
+	device_destroy(dgrp_class, MKDEV(0, max_majors + 2));
+	class_destroy(dgrp_class);
+}
+
+static ssize_t dgrp_node_state_show(struct device *c,
+				    struct device_attribute *attr, char *buf)
+{
+	struct nd_struct *nd;
+
+	if (!c)
+		return 0;
+	nd = (struct nd_struct *) dev_get_drvdata(c);
+	if (!nd)
+		return 0;
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", ND_STATE_STR(nd->nd_state));
+}
+
+static DEVICE_ATTR(state, 0600, dgrp_node_state_show, NULL);
+
+static ssize_t dgrp_node_description_show(struct device *c,
+					  struct device_attribute *attr,
+					  char *buf)
+{
+	struct nd_struct *nd;
+
+	if (!c)
+		return 0;
+	nd = (struct nd_struct *) dev_get_drvdata(c);
+	if (!nd)
+		return 0;
+
+	if (nd->nd_state == NS_READY && nd->nd_ps_desc)
+		return snprintf(buf, PAGE_SIZE, "%s\n", nd->nd_ps_desc);
+	return 0;
+}
+static DEVICE_ATTR(description_info, 0600, dgrp_node_description_show, NULL);
+
+static ssize_t dgrp_node_hw_version_show(struct device *c,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct nd_struct *nd;
+
+	if (!c)
+		return 0;
+	nd = (struct nd_struct *) dev_get_drvdata(c);
+	if (!nd)
+		return 0;
+
+	if (nd->nd_state == NS_READY)
+		return snprintf(buf, PAGE_SIZE, "%d.%d\n",
+				(nd->nd_hw_ver >> 8) & 0xff,
+				nd->nd_hw_ver & 0xff);
+
+	return 0;
+}
+static DEVICE_ATTR(hw_version_info, 0600, dgrp_node_hw_version_show, NULL);
+
+static ssize_t dgrp_node_hw_id_show(struct device *c,
+				    struct device_attribute *attr, char *buf)
+{
+	struct nd_struct *nd;
+
+	if (!c)
+		return 0;
+	nd = (struct nd_struct *) dev_get_drvdata(c);
+	if (!nd)
+		return 0;
+
+
+	if (nd->nd_state == NS_READY)
+		return snprintf(buf, PAGE_SIZE, "%d\n", nd->nd_hw_id);
+	return 0;
+}
+static DEVICE_ATTR(hw_id_info, 0600, dgrp_node_hw_id_show, NULL);
+
+static ssize_t dgrp_node_sw_version_show(struct device *c,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct nd_struct *nd;
+
+	if (!c)
+		return 0;
+
+	nd = (struct nd_struct *) dev_get_drvdata(c);
+	if (!nd)
+		return 0;
+
+	if (nd->nd_state == NS_READY)
+		return snprintf(buf, PAGE_SIZE, "%d.%d\n",
+				(nd->nd_sw_ver >> 8) & 0xff,
+				nd->nd_sw_ver & 0xff);
+
+	return 0;
+}
+static DEVICE_ATTR(sw_version_info, 0600, dgrp_node_sw_version_show, NULL);
+
+
+static struct attribute *dgrp_sysfs_node_entries[] = {
+	&dev_attr_state.attr,
+	&dev_attr_description_info.attr,
+	&dev_attr_hw_version_info.attr,
+	&dev_attr_hw_id_info.attr,
+	&dev_attr_sw_version_info.attr,
+	NULL
+};
+
+
+static struct attribute_group dgrp_node_attribute_group = {
+	.name = NULL,
+	.attrs = dgrp_sysfs_node_entries,
+};
+
+
+void dgrp_create_node_class_sysfs_files(struct nd_struct *nd)
+{
+	int ret;
+	char name[10];
+
+	if (nd->nd_ID)
+		ID_TO_CHAR(nd->nd_ID, name);
+	else
+		sprintf(name, "node%ld", nd->nd_major);
+
+	nd->nd_class_dev = device_create(dgrp_class, dgrp_class_nodes_dev,
+		MKDEV(0, nd->nd_major), NULL, name);
+
+	ret = sysfs_create_group(&nd->nd_class_dev->kobj,
+				 &dgrp_node_attribute_group);
+
+	if (ret) {
+		pr_alert("%s: failed to create sysfs node device attributes.\n",
+			__func__);
+		sysfs_remove_group(&nd->nd_class_dev->kobj,
+				   &dgrp_node_attribute_group);
+		return;
+	}
+
+	dev_set_drvdata(nd->nd_class_dev, nd);
+
+}
+
+
+void dgrp_remove_node_class_sysfs_files(struct nd_struct *nd)
+{
+	if (nd->nd_class_dev) {
+		sysfs_remove_group(&nd->nd_class_dev->kobj,
+				   &dgrp_node_attribute_group);
+
+		device_destroy(dgrp_class, MKDEV(0, nd->nd_major));
+		nd->nd_class_dev = NULL;
+	}
+}
+
+
+
+static ssize_t dgrp_tty_state_show(struct device *d,
+				   struct device_attribute *attr, char *buf)
+{
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+
+	return snprintf(buf, PAGE_SIZE, "%s\n",
+			un->un_open_count ? "Open" : "Closed");
+}
+static DEVICE_ATTR(state_info, 0600, dgrp_tty_state_show, NULL);
+
+static ssize_t dgrp_tty_baud_show(struct device *d,
+				  struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+		un->un_open_count ? (PORTSERVER_DIVIDEND / ch->ch_s_brate) : 0);
+}
+static DEVICE_ATTR(baud_info, 0400, dgrp_tty_baud_show, NULL);
+
+
+static ssize_t dgrp_tty_msignals_show(struct device *d,
+				      struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+
+	if (ch->ch_open_count) {
+		return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n",
+			(ch->ch_s_mlast & DM_RTS) ? "RTS" : "",
+			(ch->ch_s_mlast & DM_CTS) ? "CTS" : "",
+			(ch->ch_s_mlast & DM_DTR) ? "DTR" : "",
+			(ch->ch_s_mlast & DM_DSR) ? "DSR" : "",
+			(ch->ch_s_mlast & DM_CD) ? "DCD" : "",
+			(ch->ch_s_mlast & DM_RI)  ? "RI"  : "");
+	}
+	return 0;
+}
+static DEVICE_ATTR(msignals_info, 0400, dgrp_tty_msignals_show, NULL);
+
+
+static ssize_t dgrp_tty_iflag_show(struct device *d,
+				   struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_s_iflag);
+}
+static DEVICE_ATTR(iflag_info, 0600, dgrp_tty_iflag_show, NULL);
+
+
+static ssize_t dgrp_tty_cflag_show(struct device *d,
+				   struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_s_cflag);
+}
+static DEVICE_ATTR(cflag_info, 0600, dgrp_tty_cflag_show, NULL);
+
+
+static ssize_t dgrp_tty_oflag_show(struct device *d,
+				   struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_s_oflag);
+}
+static DEVICE_ATTR(oflag_info, 0600, dgrp_tty_oflag_show, NULL);
+
+
+static ssize_t dgrp_tty_digi_flag_show(struct device *d,
+				       struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags);
+}
+static DEVICE_ATTR(digi_flag_info, 0600, dgrp_tty_digi_flag_show, NULL);
+
+
+static ssize_t dgrp_tty_rxcount_show(struct device *d,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_rxcount);
+}
+static DEVICE_ATTR(rxcount_info, 0600, dgrp_tty_rxcount_show, NULL);
+
+
+static ssize_t dgrp_tty_txcount_show(struct device *d,
+				     struct device_attribute *attr, char *buf)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_txcount);
+}
+static DEVICE_ATTR(txcount_info, 0600, dgrp_tty_txcount_show, NULL);
+
+
+static ssize_t dgrp_tty_name_show(struct device *d,
+				  struct device_attribute *attr, char *buf)
+{
+	struct nd_struct *nd;
+	struct ch_struct *ch;
+	struct un_struct *un;
+	char name[10];
+
+	if (!d)
+		return 0;
+	un = (struct un_struct *) dev_get_drvdata(d);
+	if (!un)
+		return 0;
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+	nd = ch->ch_nd;
+	if (!nd)
+		return 0;
+
+	ID_TO_CHAR(nd->nd_ID, name);
+
+	return snprintf(buf, PAGE_SIZE, "%s%s%02d\n",
+		un->un_type == SERIAL_TYPE_XPRINT ? "pr" : "tty",
+		name, ch->ch_portnum);
+}
+static DEVICE_ATTR(custom_name, 0600, dgrp_tty_name_show, NULL);
+
+
+static struct attribute *dgrp_sysfs_tty_entries[] = {
+	&dev_attr_state_info.attr,
+	&dev_attr_baud_info.attr,
+	&dev_attr_msignals_info.attr,
+	&dev_attr_iflag_info.attr,
+	&dev_attr_cflag_info.attr,
+	&dev_attr_oflag_info.attr,
+	&dev_attr_digi_flag_info.attr,
+	&dev_attr_rxcount_info.attr,
+	&dev_attr_txcount_info.attr,
+	&dev_attr_custom_name.attr,
+	NULL
+};
+
+
+static struct attribute_group dgrp_tty_attribute_group = {
+	.name = NULL,
+	.attrs = dgrp_sysfs_tty_entries,
+};
+
+
+void dgrp_create_tty_sysfs(struct un_struct *un, struct device *c)
+{
+	int ret;
+
+	ret = sysfs_create_group(&c->kobj, &dgrp_tty_attribute_group);
+	if (ret) {
+		pr_alert("%s: failed to create sysfs tty device attributes.\n",
+			__func__);
+		sysfs_remove_group(&c->kobj, &dgrp_tty_attribute_group);
+		return;
+	}
+
+	dev_set_drvdata(c, un);
+
+}
+
+
+void dgrp_remove_tty_sysfs(struct device *c)
+{
+	sysfs_remove_group(&c->kobj, &dgrp_tty_attribute_group);
+}
diff --git a/drivers/staging/dgrp/dgrp_tty.c b/drivers/staging/dgrp/dgrp_tty.c
new file mode 100644
index 00000000000..7d7de873870
--- /dev/null
+++ b/drivers/staging/dgrp/dgrp_tty.c
@@ -0,0 +1,3331 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     Gene Olson    <Gene_Olson at digi dot com>
+ *     James Puzzo   <jamesp at digi dot com>
+ *     Jeff Randall
+ *     Scott Kilau   <scottk at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/*
+ *
+ *  Filename:
+ *
+ *     dgrp_tty.c
+ *
+ *  Description:
+ *
+ *     This file implements the tty driver functionality for the
+ *     RealPort driver software.
+ *
+ *  Author:
+ *
+ *     James A. Puzzo
+ *     Ann-Marie Westgate
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/sched.h>
+
+#include "dgrp_common.h"
+
+#ifndef _POSIX_VDISABLE
+#define   _POSIX_VDISABLE ('\0')
+#endif
+
+/*
+ *	forward declarations
+ */
+
+static void drp_param(struct ch_struct *);
+static void dgrp_tty_close(struct tty_struct *, struct file *);
+
+/* ioctl helper functions */
+static int set_modem_info(struct ch_struct *, unsigned int, unsigned int *);
+static int get_modem_info(struct ch_struct *, unsigned int *);
+static void dgrp_set_custom_speed(struct ch_struct *, int);
+static int dgrp_tty_digigetedelay(struct tty_struct *, int *);
+static int dgrp_tty_digisetedelay(struct tty_struct *, int *);
+static int dgrp_send_break(struct ch_struct *, int);
+
+static ushort  tty_to_ch_flags(struct tty_struct *, char);
+static tcflag_t ch_to_tty_flags(unsigned short, char);
+
+static void dgrp_tty_input_start(struct tty_struct *);
+static void dgrp_tty_input_stop(struct tty_struct *);
+
+static void drp_wmove(struct ch_struct *, int, void*, int);
+
+static int dgrp_tty_open(struct tty_struct *, struct file *);
+static void dgrp_tty_close(struct tty_struct *, struct file *);
+static int dgrp_tty_write(struct tty_struct *, const unsigned char *, int);
+static int dgrp_tty_write_room(struct tty_struct *);
+static void dgrp_tty_flush_buffer(struct tty_struct *);
+static int dgrp_tty_chars_in_buffer(struct tty_struct *);
+static int dgrp_tty_ioctl(struct tty_struct *, unsigned int, unsigned long);
+static void dgrp_tty_set_termios(struct tty_struct *, struct ktermios *);
+static void dgrp_tty_stop(struct tty_struct *);
+static void dgrp_tty_start(struct tty_struct *);
+static void dgrp_tty_throttle(struct tty_struct *);
+static void dgrp_tty_unthrottle(struct tty_struct *);
+static void dgrp_tty_hangup(struct tty_struct *);
+static int dgrp_tty_put_char(struct tty_struct *, unsigned char);
+static int dgrp_tty_tiocmget(struct tty_struct *);
+static int dgrp_tty_tiocmset(struct tty_struct *, unsigned int, unsigned int);
+static int dgrp_tty_send_break(struct tty_struct *, int);
+static void dgrp_tty_send_xchar(struct tty_struct *, char);
+
+/*
+ *	tty defines
+ */
+#define	SERIAL_TYPE_NORMAL	1
+#define	SERIAL_TYPE_CALLOUT	2
+#define	SERIAL_TYPE_XPRINT	3
+
+
+/*
+ *	tty globals/statics
+ */
+
+
+#define PORTSERVER_DIVIDEND	1843200
+
+/*
+ *  Default transparent print information.
+ */
+static struct digi_struct digi_init = {
+	.digi_flags   = DIGI_COOK,	/* Flags			*/
+	.digi_maxcps  = 100,		/* Max CPS			*/
+	.digi_maxchar = 50,		/* Max chars in print queue	*/
+	.digi_bufsize = 100,		/* Printer buffer size		*/
+	.digi_onlen   = 4,		/* size of printer on string	*/
+	.digi_offlen  = 4,		/* size of printer off string	*/
+	.digi_onstr   = "\033[5i",	/* ANSI printer on string	*/
+	.digi_offstr  = "\033[4i",	/* ANSI printer off string	*/
+	.digi_term    = "ansi"		/* default terminal type	*/
+};
+
+/*
+ *	Define a local default termios struct. All ports will be created
+ *	with this termios initially.
+ *
+ *	This defines a raw port at 9600 baud, 8 data bits, no parity,
+ *	1 stop bit.
+ */
+static struct ktermios DefaultTermios = {
+	.c_iflag = (ICRNL | IXON),
+	.c_oflag = (OPOST | ONLCR),
+	.c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL),
+	.c_lflag = (ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHOCTL
+		    | ECHOKE | IEXTEN),
+	.c_cc    = INIT_C_CC,
+	.c_line  = 0,
+};
+
+/* Define our tty operations struct */
+static const struct tty_operations dgrp_tty_ops = {
+	.open            = dgrp_tty_open,
+	.close           = dgrp_tty_close,
+	.write           = dgrp_tty_write,
+	.write_room      = dgrp_tty_write_room,
+	.flush_buffer    = dgrp_tty_flush_buffer,
+	.chars_in_buffer = dgrp_tty_chars_in_buffer,
+	.flush_chars     = NULL,
+	.ioctl           = dgrp_tty_ioctl,
+	.set_termios     = dgrp_tty_set_termios,
+	.stop            = dgrp_tty_stop,
+	.start           = dgrp_tty_start,
+	.throttle        = dgrp_tty_throttle,
+	.unthrottle      = dgrp_tty_unthrottle,
+	.hangup          = dgrp_tty_hangup,
+	.put_char        = dgrp_tty_put_char,
+	.tiocmget        = dgrp_tty_tiocmget,
+	.tiocmset        = dgrp_tty_tiocmset,
+	.break_ctl       = dgrp_tty_send_break,
+	.send_xchar      = dgrp_tty_send_xchar
+};
+
+
+static int calc_baud_rate(struct un_struct *un)
+{
+	int i;
+	int brate;
+
+	struct baud_rates {
+		unsigned int rate;
+		unsigned int cflag;
+	};
+
+	static struct baud_rates baud_rates[] = {
+		{ 921600, B921600 },
+		{ 460800, B460800 },
+		{ 230400, B230400 },
+		{ 115200, B115200 },
+		{  57600, B57600  },
+		{  38400, B38400  },
+		{  19200, B19200  },
+		{   9600, B9600   },
+		{   4800, B4800   },
+		{   2400, B2400   },
+		{   1200, B1200   },
+		{    600, B600    },
+		{    300, B300    },
+		{    200, B200    },
+		{    150, B150    },
+		{    134, B134    },
+		{    110, B110    },
+		{     75, B75     },
+		{     50, B50     },
+		{      0, B9600  }
+	};
+
+	brate = C_BAUD(un->un_tty);
+
+	for (i = 0; baud_rates[i].rate; i++) {
+		if (baud_rates[i].cflag == brate)
+			break;
+	}
+
+	return baud_rates[i].rate;
+}
+
+static int calc_fastbaud_rate(struct un_struct *un, struct ktermios *uts)
+{
+	int i;
+	int brate;
+
+	ulong bauds[2][16] = {
+		{ /* fastbaud*/
+			0,      57600,	 76800,	115200,
+			131657, 153600, 230400, 460800,
+			921600, 1200,   1800,	2400,
+			4800,   9600,	19200,	38400 },
+		{ /* fastbaud & CBAUDEX */
+			0,      57600,	115200,	230400,
+			460800, 150,    200,    921600,
+			600,    1200,   1800,	2400,
+			4800,   9600,	19200,	38400 }
+	};
+
+	brate = C_BAUD(un->un_tty) & 0xff;
+
+	i = (uts->c_cflag & CBAUDEX) ? 1 : 0;
+
+
+	if ((i >= 0) && (i < 2) && (brate >= 0) && (brate < 16))
+		brate = bauds[i][brate];
+	else
+		brate = 0;
+
+	return brate;
+}
+
+/**
+ * drp_param() -- send parameter values to be sent to the node
+ * @ch: channel structure of port to modify
+ *
+ * Interprets the tty and modem changes made by an application
+ * program (by examining the termios structures) and sets up
+ * parameter values to be sent to the node.
+ */
+static void drp_param(struct ch_struct *ch)
+{
+	struct nd_struct *nd;
+	struct un_struct *un;
+	int   brate;
+	int   mflow;
+	int   xflag;
+	int   iflag;
+	struct ktermios *tts, *pts, *uts;
+
+	nd = ch->ch_nd;
+
+	/*
+	 *  If the terminal device is open, use it to set up all tty
+	 *  modes and functions.  Otherwise use the printer device.
+	 */
+
+	if (ch->ch_tun.un_open_count) {
+
+		un = &ch->ch_tun;
+		tts = &ch->ch_tun.un_tty->termios;
+
+		/*
+		 *  If both devices are open, copy critical line
+		 *  parameters from the tty device to the printer,
+		 *  so that if the tty is closed, the printer will
+		 *  continue without disruption.
+		 */
+
+		if (ch->ch_pun.un_open_count) {
+
+			pts = &ch->ch_pun.un_tty->termios;
+
+			pts->c_cflag ^=
+				(pts->c_cflag ^ tts->c_cflag) &
+				(CBAUD  | CSIZE | CSTOPB | CREAD | PARENB |
+				 PARODD | HUPCL | CLOCAL);
+
+			pts->c_iflag ^=
+				(pts->c_iflag ^ tts->c_iflag) &
+				(IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK |
+				 ISTRIP | IXON   | IXANY  | IXOFF);
+
+			pts->c_cc[VSTART] = tts->c_cc[VSTART];
+			pts->c_cc[VSTOP] = tts->c_cc[VSTOP];
+		}
+	} else if (ch->ch_pun.un_open_count == 0) {
+		pr_warn("%s - ch_pun.un_open_count shouldn't be 0\n",
+		       __func__);
+		return;
+	} else {
+		un = &ch->ch_pun;
+	}
+
+	uts = &un->un_tty->termios;
+
+	/*
+	 * Determine if FAST writes can be performed.
+	 */
+
+	if ((ch->ch_digi.digi_flags & DIGI_COOK) != 0 &&
+	    (ch->ch_tun.un_open_count != 0)  &&
+	    !((un->un_tty)->ldisc->ops->flags & LDISC_FLAG_DEFINED) &&
+	    !(L_XCASE(un->un_tty))) {
+		ch->ch_flag |= CH_FAST_WRITE;
+	} else {
+		ch->ch_flag &= ~CH_FAST_WRITE;
+	}
+
+	/*
+	 *  If FAST writes can be performed, and OPOST is on in the
+	 *  terminal device, do OPOST handling in the server.
+	 */
+
+	if ((ch->ch_flag & CH_FAST_WRITE) &&
+	      O_OPOST(un->un_tty) != 0) {
+		int oflag = tty_to_ch_flags(un->un_tty, 'o');
+
+		/* add to ch_ocook any processing flags set in the termio */
+		ch->ch_ocook |= oflag & (OF_OLCUC |
+					 OF_ONLCR |
+					 OF_OCRNL |
+					 OF_ONLRET |
+					 OF_TABDLY);
+
+		/*
+		 * the hpux driver clears any flags set in ch_ocook
+		 * from the termios oflag.  It is STILL reported though
+		 * by a TCGETA
+		 */
+
+		oflag = ch_to_tty_flags(ch->ch_ocook, 'o');
+		uts->c_oflag &= ~oflag;
+
+	} else {
+		/* clear the ch->ch_ocook flag */
+		int oflag = ch_to_tty_flags(ch->ch_ocook, 'o');
+		uts->c_oflag |= oflag;
+		ch->ch_ocook = 0;
+	}
+
+	ch->ch_oflag = ch->ch_ocook;
+
+
+	ch->ch_flag &= ~CH_FAST_READ;
+
+	/*
+	 *  Generate channel flags
+	 */
+
+	if (C_BAUD(un->un_tty) == B0) {
+		if (!(ch->ch_flag & CH_BAUD0)) {
+			/* TODO : the HPUX driver flushes line */
+			/* TODO : discipline, I assume I don't have to */
+
+			ch->ch_tout = ch->ch_tin;
+			ch->ch_rout = ch->ch_rin;
+
+			ch->ch_break_time = 0;
+
+			ch->ch_send |= RR_TX_FLUSH | RR_RX_FLUSH;
+
+			ch->ch_mout &= ~(DM_DTR | DM_RTS);
+
+			ch->ch_flag |= CH_BAUD0;
+		}
+	} else if (ch->ch_custom_speed) {
+		ch->ch_brate = PORTSERVER_DIVIDEND / ch->ch_custom_speed ;
+
+		if (ch->ch_flag & CH_BAUD0) {
+			ch->ch_mout |= DM_DTR | DM_RTS;
+
+			ch->ch_flag &= ~CH_BAUD0;
+		}
+	} else {
+		/*
+		 * Baud rate mapping.
+		 *
+		 * If FASTBAUD isn't on, we can scan the new baud rate list
+		 * as required.
+		 *
+		 * However, if FASTBAUD is on, we must go to the old
+		 * baud rate mapping that existed many many moons ago,
+		 * for compatibility reasons.
+		 */
+
+		if (!(ch->ch_digi.digi_flags & DIGI_FAST))
+			brate = calc_baud_rate(un);
+		else
+			brate = calc_fastbaud_rate(un, uts);
+
+		if (brate == 0)
+			brate = 9600;
+
+		ch->ch_brate = PORTSERVER_DIVIDEND / brate;
+
+		if (ch->ch_flag & CH_BAUD0) {
+			ch->ch_mout |= DM_DTR | DM_RTS;
+
+			ch->ch_flag &= ~CH_BAUD0;
+		}
+	}
+
+	/*
+	 *  Generate channel cflags from the termio.
+	 */
+
+	ch->ch_cflag = tty_to_ch_flags(un->un_tty, 'c');
+
+	/*
+	 *  Generate channel iflags from the termio.
+	 */
+
+	iflag = (int) tty_to_ch_flags(un->un_tty, 'i');
+
+	if (START_CHAR(un->un_tty) == _POSIX_VDISABLE ||
+	    STOP_CHAR(un->un_tty) == _POSIX_VDISABLE) {
+		iflag &= ~(IF_IXON | IF_IXANY | IF_IXOFF);
+	}
+
+	ch->ch_iflag = iflag;
+
+	/*
+	 *  Generate flow control characters
+	 */
+
+	/*
+	 * From the POSIX.1 spec (7.1.2.6): "If {_POSIX_VDISABLE}
+	 * is defined for the terminal device file, and the value
+	 * of one of the changable special control characters (see
+	 * 7.1.1.9) is {_POSIX_VDISABLE}, that function shall be
+	 * disabled, that is, no input data shall be recognized as
+	 * the disabled special character."
+	 *
+	 * OK, so we don't ever assign S/DXB XON or XOFF to _POSIX_VDISABLE.
+	 */
+
+	if (uts->c_cc[VSTART] != _POSIX_VDISABLE)
+		ch->ch_xon = uts->c_cc[VSTART];
+	if (uts->c_cc[VSTOP] != _POSIX_VDISABLE)
+		ch->ch_xoff = uts->c_cc[VSTOP];
+
+	ch->ch_lnext = (uts->c_cc[VLNEXT] == _POSIX_VDISABLE ? 0 :
+			uts->c_cc[VLNEXT]);
+
+	/*
+	 * Also, if either c_cc[START] or c_cc[STOP] is set to
+	 * _POSIX_VDISABLE, we can't really do software flow
+	 * control--in either direction--so we turn it off as
+	 * far as S/DXB is concerned.  In essence, if you disable
+	 * one, you disable the other too.
+	 */
+	if ((uts->c_cc[VSTART] == _POSIX_VDISABLE) ||
+	    (uts->c_cc[VSTOP] == _POSIX_VDISABLE))
+		ch->ch_iflag &= ~(IF_IXOFF | IF_IXON);
+
+	/*
+	 *  Update xflags.
+	 */
+
+	xflag = 0;
+
+	if (ch->ch_digi.digi_flags & DIGI_AIXON)
+		xflag = XF_XIXON;
+
+	if ((ch->ch_xxon == _POSIX_VDISABLE) ||
+	    (ch->ch_xxoff == _POSIX_VDISABLE))
+		xflag &= ~XF_XIXON;
+
+	ch->ch_xflag = xflag;
+
+
+	/*
+	 *  Figure effective DCD value.
+	 */
+
+	if (C_CLOCAL(un->un_tty))
+		ch->ch_flag |= CH_CLOCAL;
+	else
+		ch->ch_flag &= ~CH_CLOCAL;
+
+	/*
+	 *  Check modem signals
+	 */
+
+	dgrp_carrier(ch);
+
+	/*
+	 *  Get hardware handshake value.
+	 */
+
+	mflow = 0;
+
+	if (C_CRTSCTS(un->un_tty))
+		mflow |= (DM_RTS | DM_CTS);
+
+	if (ch->ch_digi.digi_flags & RTSPACE)
+		mflow |= DM_RTS;
+
+	if (ch->ch_digi.digi_flags & DTRPACE)
+		mflow |= DM_DTR;
+
+	if (ch->ch_digi.digi_flags & CTSPACE)
+		mflow |= DM_CTS;
+
+	if (ch->ch_digi.digi_flags & DSRPACE)
+		mflow |= DM_DSR;
+
+	if (ch->ch_digi.digi_flags & DCDPACE)
+		mflow |= DM_CD;
+
+	if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE)
+		mflow |= DM_RTS_TOGGLE;
+
+	ch->ch_mflow = mflow;
+
+	/*
+	 *  Send the changes to the server.
+	 */
+
+	ch->ch_flag |= CH_PARAM;
+	(ch->ch_nd)->nd_tx_work = 1;
+
+	if (waitqueue_active(&ch->ch_flag_wait))
+		wake_up_interruptible(&ch->ch_flag_wait);
+}
+
+/*
+ * This function is just used as a callback for timeouts
+ * waiting on the ch_sleep flag.
+ */
+static void wake_up_drp_sleep_timer(unsigned long ptr)
+{
+	struct ch_struct *ch = (struct ch_struct *) ptr;
+	if (ch)
+		wake_up(&ch->ch_sleep);
+}
+
+
+/*
+ * Set up our own sleep that can't be cancelled
+ * until our timeout occurs.
+ */
+static void drp_my_sleep(struct ch_struct *ch)
+{
+	struct timer_list drp_wakeup_timer;
+	DECLARE_WAITQUEUE(wait, current);
+
+	/*
+	 * First make sure we're ready to receive the wakeup.
+	 */
+
+	add_wait_queue(&ch->ch_sleep, &wait);
+	current->state = TASK_UNINTERRUPTIBLE;
+
+	/*
+	 * Since we are uninterruptible, set a timer to
+	 * unset the uninterruptable state in 1 second.
+	 */
+
+	init_timer(&drp_wakeup_timer);
+	drp_wakeup_timer.function = wake_up_drp_sleep_timer;
+	drp_wakeup_timer.data = (unsigned long) ch;
+	drp_wakeup_timer.expires = jiffies + (1 * HZ);
+	add_timer(&drp_wakeup_timer);
+
+	schedule();
+
+	del_timer(&drp_wakeup_timer);
+
+	remove_wait_queue(&ch->ch_sleep, &wait);
+}
+
+/*
+ * dgrp_tty_open()
+ *
+ * returns:
+ *    -EBUSY    - this is a callout device and the normal device is active
+ *              - there is an error in opening the tty
+ *    -ENODEV   - the channel does not exist
+ *    -EAGAIN   - we are in the middle of hanging up or closing
+ *              - IMMEDIATE_OPEN fails
+ *    -ENXIO or -EAGAIN
+ *              - if the port is outside physical range
+ *    -EINTR    - the open is interrupted
+ *
+ */
+static int dgrp_tty_open(struct tty_struct *tty, struct file *file)
+{
+	int    retval = 0;
+	struct nd_struct  *nd;
+	struct ch_struct *ch;
+	struct un_struct  *un;
+	int    port;
+	int    delay_error;
+	int    otype;
+	int    unf;
+	int    wait_carrier;
+	int    category;
+	int    counts_were_incremented = 0;
+	ulong lock_flags;
+	DECLARE_WAITQUEUE(wait, current);
+
+	/*
+	 * Do some initial checks to see if the node and port exist
+	 */
+
+	nd = nd_struct_get(MAJOR(tty_devnum(tty)));
+	port = PORT_NUM(MINOR(tty_devnum(tty)));
+	category = OPEN_CATEGORY(MINOR(tty_devnum(tty)));
+
+	if (!nd)
+		return -ENODEV;
+
+	if (port >= CHAN_MAX)
+		return -ENODEV;
+
+	/*
+	 *  The channel exists.
+	 */
+
+	ch = nd->nd_chan + port;
+
+	un = IS_PRINT(MINOR(tty_devnum(tty))) ? &ch->ch_pun : &ch->ch_tun;
+	un->un_tty = tty;
+	tty->driver_data = un;
+
+	/*
+	 * If we are in the middle of hanging up,
+	 * then return an error
+	 */
+	if (tty_hung_up_p(file)) {
+		retval = ((un->un_flag & UN_HUP_NOTIFY) ?
+			   -EAGAIN : -ERESTARTSYS);
+		goto done;
+	}
+
+	/*
+	 * If the port is in the middle of closing, then block
+	 * until it is done, then try again.
+	 */
+	retval = wait_event_interruptible(un->un_close_wait,
+			((un->un_flag & UN_CLOSING) == 0));
+
+	if (retval)
+		goto done;
+
+	/*
+	 * If the port is in the middle of a reopen after a network disconnect,
+	 * wait until it is done, then try again.
+	 */
+	retval = wait_event_interruptible(ch->ch_flag_wait,
+			((ch->ch_flag & CH_PORT_GONE) == 0));
+
+	if (retval)
+		goto done;
+
+	/*
+	 * If this is a callout device, then just make sure the normal
+	 * device isn't being used.
+	 */
+
+	if (tty->driver->subtype == SERIAL_TYPE_CALLOUT) {
+		if (un->un_flag & UN_NORMAL_ACTIVE) {
+			retval = -EBUSY;
+			goto done;
+		} else {
+			un->un_flag |= UN_CALLOUT_ACTIVE;
+		}
+	}
+
+	/*
+	 *  Loop waiting until the open can be successfully completed.
+	 */
+
+	spin_lock_irqsave(&nd->nd_lock, lock_flags);
+
+	nd->nd_tx_work = 1;
+
+	for (;;) {
+		wait_carrier = 0;
+
+		/*
+		 * Determine the open type from the flags provided.
+		 */
+
+		/*
+		 * If the port is not enabled, then exit
+		 */
+		if (test_bit(TTY_IO_ERROR, &tty->flags)) {
+			/* there was an error in opening the tty */
+			if (un->un_flag & UN_CALLOUT_ACTIVE)
+				retval = -EBUSY;
+			else
+				un->un_flag |= UN_NORMAL_ACTIVE;
+			goto unlock;
+		}
+
+		if (file->f_flags & O_NONBLOCK) {
+
+			/*
+			 * if the O_NONBLOCK is set, errors on read and write
+			 * must return -EAGAIN immediately and NOT sleep
+			 * on the waitqs.
+			 */
+			otype = OTYPE_IMMEDIATE;
+			delay_error = -EAGAIN;
+
+		} else if (!OPEN_WAIT_AVAIL(category) ||
+			  (file->f_flags & O_NDELAY) != 0) {
+			otype = OTYPE_IMMEDIATE;
+			delay_error = -EBUSY;
+
+		} else if (!OPEN_WAIT_CARRIER(category) ||
+			  ((ch->ch_digi.digi_flags & DIGI_FORCEDCD) != 0) ||
+			  C_CLOCAL(tty)) {
+			otype = OTYPE_PERSISTENT;
+			delay_error = 0;
+
+		} else {
+			otype = OTYPE_INCOMING;
+			delay_error = 0;
+		}
+
+		/*
+		 * Handle port currently outside physical port range.
+		 */
+
+		if (port >= nd->nd_chan_count) {
+			if (otype == OTYPE_IMMEDIATE) {
+				retval = (nd->nd_state == NS_READY) ?
+						-ENXIO : -EAGAIN;
+				goto unlock;
+			}
+		}
+
+		/*
+		 *  Handle port not currently open.
+		 */
+
+		else if (ch->ch_open_count == 0) {
+			/*
+			 * Return an error when an Incoming Open
+			 * response indicates the port is busy.
+			 */
+
+			if (ch->ch_open_error != 0 && otype == ch->ch_otype) {
+				retval = (ch->ch_open_error <= 2) ?
+					  delay_error : -ENXIO ;
+				goto unlock;
+			}
+
+			/*
+			 * Fail any new Immediate open if we do not have
+			 * a normal connection to the server.
+			 */
+
+			if (nd->nd_state != NS_READY &&
+			    otype == OTYPE_IMMEDIATE) {
+				retval = -EAGAIN;
+				goto unlock;
+			}
+
+			/*
+			 * If a Realport open of the correct type has
+			 * succeeded, complete the open.
+			 */
+
+			if (ch->ch_state == CS_READY && ch->ch_otype == otype)
+				break;
+		}
+
+		/*
+		 * Handle port already open and active as a device
+		 * of same category.
+		 */
+
+		else if ((ch->ch_category == category) ||
+			  IS_PRINT(MINOR(tty_devnum(tty)))) {
+			/*
+			 * Fail if opening the device now would
+			 * violate exclusive use.
+			 */
+			unf = ch->ch_tun.un_flag | ch->ch_pun.un_flag;
+
+			if ((file->f_flags & O_EXCL) || (unf & UN_EXCL)) {
+				retval = -EBUSY;
+				goto unlock;
+			}
+
+			/*
+			 * If the open device is in the hangup state, all
+			 * system calls fail except close().
+			 */
+
+			/* TODO : check on hangup_p calls */
+
+			if (ch->ch_flag & CH_HANGUP) {
+				retval = -ENXIO;
+				goto unlock;
+			}
+
+			/*
+			 * If the port is ready, and carrier is ignored
+			 * or present, then complete the open.
+			 */
+
+			if (ch->ch_state == CS_READY &&
+			    (otype != OTYPE_INCOMING ||
+			    ch->ch_flag & CH_VIRT_CD))
+				break;
+
+			wait_carrier = 1;
+		}
+
+		/*
+		 *  Handle port active with a different category device.
+		 */
+
+		else {
+			if (otype == OTYPE_IMMEDIATE) {
+				retval = delay_error;
+				goto unlock;
+			}
+		}
+
+		/*
+		 * Wait until conditions change, then take another
+		 * try at the open.
+		 */
+
+		ch->ch_wait_count[otype]++;
+
+		if (wait_carrier)
+			ch->ch_wait_carrier++;
+
+		/*
+		 * Prepare the task to accept the wakeup, then
+		 * release our locks and release control.
+		 */
+
+		add_wait_queue(&ch->ch_flag_wait, &wait);
+		current->state = TASK_INTERRUPTIBLE;
+
+		spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+
+		/*
+		 * Give up control, we'll come back if we're
+		 * interrupted or are woken up.
+		 */
+		schedule();
+		remove_wait_queue(&ch->ch_flag_wait, &wait);
+
+		spin_lock_irqsave(&nd->nd_lock, lock_flags);
+
+		current->state = TASK_RUNNING;
+
+		ch->ch_wait_count[otype]--;
+
+		if (wait_carrier)
+			ch->ch_wait_carrier--;
+
+		nd->nd_tx_work = 1;
+
+		if (signal_pending(current)) {
+			retval = -EINTR;
+			goto unlock;
+		}
+	} /* end for(;;) */
+
+	/*
+	 *  The open has succeeded.  No turning back.
+	 */
+	counts_were_incremented = 1;
+	un->un_open_count++;
+	ch->ch_open_count++;
+
+	/*
+	 * Initialize the channel, if it's not already open.
+	 */
+
+	if (ch->ch_open_count == 1) {
+		ch->ch_flag = 0;
+		ch->ch_inwait = 0;
+		ch->ch_category = category;
+		ch->ch_pscan_state = 0;
+
+		/* TODO : find out what PS-1 bug Gene was referring to */
+		/* TODO : in the following comment. */
+
+		ch->ch_send = RR_TX_START | RR_RX_START;  /* PS-1 bug */
+
+		if (C_CLOCAL(tty) ||
+		    ch->ch_s_mlast & DM_CD ||
+		    ch->ch_digi.digi_flags & DIGI_FORCEDCD)
+			ch->ch_flag |= CH_VIRT_CD;
+		else if (OPEN_FORCES_CARRIER(category))
+			ch->ch_flag |= CH_VIRT_CD;
+
+	}
+
+	/*
+	 *  Initialize the unit, if it is not already open.
+	 */
+
+	if (un->un_open_count == 1) {
+		/*
+		 *  Since all terminal options are always sticky in Linux,
+		 *  we don't need the UN_STICKY flag to be handled specially.
+		 */
+		/* clears all the digi flags, leaves serial flags */
+		un->un_flag &= ~UN_DIGI_MASK;
+
+		if (file->f_flags & O_EXCL)
+			un->un_flag |= UN_EXCL;
+
+		/* TODO : include "session" and "pgrp" */
+
+		/*
+		 *  In Linux, all terminal parameters are intended to be sticky.
+		 *  as a result, we "remove" the code which once reset the ports
+		 *  to sane values.
+		 */
+
+		drp_param(ch);
+
+	}
+
+	un->un_flag |= UN_INITIALIZED;
+
+	retval = 0;
+
+unlock:
+
+	spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+
+done:
+	/*
+	 * Linux does a close for every open, even failed ones!
+	 */
+	if (!counts_were_incremented) {
+		un->un_open_count++;
+		ch->ch_open_count++;
+	}
+
+	if (retval)
+		dev_err(tty->dev, "tty open bad return (%i)\n", retval);
+
+	return retval;
+}
+
+
+
+
+/*
+ * dgrp_tty_close() -- close function for tty_operations
+ */
+static void dgrp_tty_close(struct tty_struct *tty, struct file *file)
+{
+	struct ch_struct *ch;
+	struct un_struct *un;
+	struct nd_struct *nd;
+	int	tpos;
+	int	port;
+	int	err = 0;
+	int	s = 0;
+	ulong  waketime;
+	ulong  lock_flags;
+	int sent_printer_offstr = 0;
+
+	port = PORT_NUM(MINOR(tty_devnum(tty)));
+
+	un = tty->driver_data;
+
+	if (!un)
+		return;
+
+	ch = un->un_ch;
+
+	if (!ch)
+		return;
+
+	nd = ch->ch_nd;
+
+	if (!nd)
+		return;
+
+	spin_lock_irqsave(&nd->nd_lock, lock_flags);
+
+
+	/* Used to be on channel basis, now we check on a unit basis. */
+	if (un->un_open_count != 1)
+		goto unlock;
+
+	/*
+	 * OK, its the last close on the unit
+	 */
+	un->un_flag |= UN_CLOSING;
+
+	/*
+	 * Notify the discipline to only process XON/XOFF characters.
+	 */
+	tty->closing = 1;
+
+	/*
+	 * Wait for output to drain only if this is
+	 * the last close against the channel
+	 */
+
+	if (ch->ch_open_count == 1) {
+		/*
+		 * If its the print device, we need to ensure at all costs that
+		 * the offstr will fit. If it won't, flush our tbuf.
+		 */
+		if (IS_PRINT(MINOR(tty_devnum(tty))) &&
+		    (((ch->ch_tout - ch->ch_tin - 1) & TBUF_MASK) <
+		    ch->ch_digi.digi_offlen))
+			ch->ch_tin = ch->ch_tout;
+
+		/*
+		 * Turn off the printer.  Don't bother checking to see if its
+		 * IS_PRINT... Since this is the last close the flag is going
+		 * to be cleared, so we MUST make sure the offstr gets inserted
+		 * into tbuf.
+		 */
+
+		if ((ch->ch_flag & CH_PRON) != 0) {
+			drp_wmove(ch, 0, ch->ch_digi.digi_offstr,
+				  ch->ch_digi.digi_offlen);
+			ch->ch_flag &= ~CH_PRON;
+			sent_printer_offstr = 1;
+		}
+	}
+
+	/*
+	 *  Wait until either the output queue has drained, or we see
+	 *  absolutely no progress for 15 seconds.
+	 */
+
+	tpos = ch->ch_s_tpos;
+
+	waketime = jiffies + 15 * HZ;
+
+	for (;;) {
+
+		/*
+		 *  Make sure the port still exists.
+		 */
+
+		if (port >= nd->nd_chan_count) {
+			err = 1;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			err = 1;
+			break;
+		}
+
+		/*
+		 * If the port is idle (not opened on the server), we have
+		 * no way of draining/flushing/closing the port on that server.
+		 * So break out of loop.
+		 */
+		if (ch->ch_state == CS_IDLE)
+			break;
+
+		nd->nd_tx_work = 1;
+
+		/*
+		 *  Exit if the queues for this unit are empty,
+		 *  and either the other unit is still open or all
+		 *  data has drained.
+		 */
+
+		if ((un->un_tty)->ops->chars_in_buffer ?
+		    ((un->un_tty)->ops->chars_in_buffer)(un->un_tty) == 0 : 1) {
+
+			/*
+			 * We don't need to wait for a buffer to drain
+			 * if the other unit is open.
+			 */
+
+			if (ch->ch_open_count != un->un_open_count)
+				break;
+
+			/*
+			 *  The wait is complete when all queues are
+			 *  drained, and any break in progress is complete.
+			 */
+
+			if (ch->ch_tin == ch->ch_tout &&
+			    ch->ch_s_tin == ch->ch_s_tpos &&
+			    (ch->ch_send & RR_TX_BREAK) == 0) {
+				break;
+			}
+		}
+
+		/*
+		 * Flush TX data and exit the wait if NDELAY is set,
+		 * or this is not a DIGI printer, and the close timeout
+		 * expires.
+		 */
+
+		if ((file->f_flags & (O_NDELAY | O_NONBLOCK)) ||
+		    ((long)(jiffies - waketime) >= 0 &&
+		      (ch->ch_digi.digi_flags & DIGI_PRINTER) == 0)) {
+
+				/*
+				 * If we sent the printer off string, we cannot
+				 * flush our internal buffers, or we might lose
+				 * the offstr.
+				 */
+				if (!sent_printer_offstr)
+					dgrp_tty_flush_buffer(tty);
+
+				tty_ldisc_flush(tty);
+				break;
+		}
+
+		/*
+		 *  Otherwise take a short nap.
+		 */
+
+		ch->ch_flag |= CH_DRAIN;
+
+		spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+
+		schedule_timeout_interruptible(1);
+		s = signal_pending(current);
+
+		spin_lock_irqsave(&nd->nd_lock, lock_flags);
+
+		if (s) {
+			/*
+			 * If we had sent the printer off string, we now have
+			 * some problems.
+			 *
+			 * The system won't let us sleep since we got an error
+			 * back from sleep, presumably because the user did
+			 * a ctrl-c...
+			 * But we need to ensure that the offstr gets sent!
+			 * Thus, we have to do something else besides sleeping.
+			 * The plan:
+			 * 1) Make this task uninterruptable.
+			 * 2) Set up a timer to go off in 1 sec.
+			 * 3) Act as tho we just got out of the sleep above.
+			 *
+			 * Thankfully, in the real world, this just
+			 * never happens.
+			 */
+
+			if (sent_printer_offstr) {
+				spin_unlock_irqrestore(&nd->nd_lock,
+						       lock_flags);
+				drp_my_sleep(ch);
+				spin_lock_irqsave(&nd->nd_lock, lock_flags);
+			} else {
+				err = 1;
+				break;
+			}
+		}
+
+		/*
+		 *  Restart the wait if any progress is seen.
+		 */
+
+		if (ch->ch_s_tpos != tpos) {
+			tpos = ch->ch_s_tpos;
+
+			/* TODO:  this gives us timeout problems with nist ?? */
+			waketime = jiffies + 15 * HZ;
+		}
+	}
+
+	/*
+	 *  Close the line discipline
+	 */
+
+	/* this is done in tty_io.c */
+	/* if ((un->un_tty)->ldisc.close)
+	 *	((un->un_tty)->ldisc.close)(un->un_tty);
+	 */
+
+	/* don't do this here */
+	/* un->un_flag = 0; */
+
+	/*
+	 *  Flush the receive buffer on terminal unit close only.
+	 */
+
+	if (!IS_PRINT(MINOR(tty_devnum(tty))))
+		ch->ch_rout = ch->ch_rin;
+
+
+	/*
+	 * Don't permit the close to happen until we get any pending
+	 * sync request responses.
+	 * There could be other ports depending upon the response as well.
+	 *
+	 * Also, don't permit the close to happen until any parameter
+	 * changes have been sent out from the state machine as well.
+	 * This is required because of a ditty -a race with -HUPCL
+	 * We MUST make sure all channel parameters have been sent to the
+	 * Portserver before sending a close.
+	 */
+
+	if ((err != 1) && (ch->ch_state != CS_IDLE)) {
+		spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+		s = wait_event_interruptible(ch->ch_flag_wait,
+			((ch->ch_flag & (CH_WAITING_SYNC | CH_PARAM)) == 0));
+		spin_lock_irqsave(&nd->nd_lock, lock_flags);
+	}
+
+	/*
+	 * Cleanup the channel if last unit open.
+	 */
+
+	if (ch->ch_open_count == 1) {
+		ch->ch_flag = 0;
+		ch->ch_category = 0;
+		ch->ch_send = 0;
+		ch->ch_expect = 0;
+		ch->ch_tout = ch->ch_tin;
+		/* (un->un_tty)->device = 0; */
+
+		if (ch->ch_state == CS_READY)
+			ch->ch_state = CS_SEND_CLOSE;
+	}
+
+	/*
+	 * Send the changes to the server
+	 */
+	if (ch->ch_state != CS_IDLE) {
+		ch->ch_flag |= CH_PARAM;
+		wake_up_interruptible(&ch->ch_flag_wait);
+	}
+
+	nd->nd_tx_work = 1;
+	nd->nd_tx_ready = 1;
+
+unlock:
+	tty->closing = 0;
+
+	if (ch->ch_open_count <= 0)
+		dev_info(tty->dev,
+			 "%s - unexpected value for ch->ch_open_count: %i\n",
+			 __func__, ch->ch_open_count);
+	else
+		ch->ch_open_count--;
+
+	if (un->un_open_count <= 0)
+		dev_info(tty->dev,
+			 "%s - unexpected value for un->un_open_count: %i\n",
+			 __func__, un->un_open_count);
+	else
+		un->un_open_count--;
+
+	un->un_flag &= ~(UN_NORMAL_ACTIVE | UN_CALLOUT_ACTIVE | UN_CLOSING);
+	if (waitqueue_active(&un->un_close_wait))
+		wake_up_interruptible(&un->un_close_wait);
+
+	spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
+
+	return;
+
+}
+
+static void drp_wmove(struct ch_struct *ch, int from_user, void *buf, int count)
+{
+	int n;
+	int ret = 0;
+
+	ch->ch_nd->nd_tx_work = 1;
+
+	n = TBUF_MAX - ch->ch_tin;
+
+	if (count >= n) {
+		if (from_user)
+			ret = copy_from_user(ch->ch_tbuf + ch->ch_tin,
+					     (void __user *) buf, n);
+		else
+			memcpy(ch->ch_tbuf + ch->ch_tin, buf, n);
+
+		buf = (char *) buf + n;
+		count -= n;
+		ch->ch_tin = 0;
+	}
+
+	if (from_user)
+		ret = copy_from_user(ch->ch_tbuf + ch->ch_tin,
+				     (void __user *) buf, count);
+	else
+		memcpy(ch->ch_tbuf + ch->ch_tin, buf, count);
+
+	ch->ch_tin += count;
+}
+
+
+static int dgrp_calculate_txprint_bounds(struct ch_struct *ch, int space,
+					 int *un_flag)
+{
+	clock_t tt;
+	clock_t mt;
+	unsigned short tmax = 0;
+
+	/*
+	 * If the terminal device is busy, reschedule when
+	 * the terminal device becomes idle.
+	 */
+
+	if (ch->ch_tun.un_open_count != 0 &&
+	    ch->ch_tun.un_tty->ops->chars_in_buffer &&
+	    ((ch->ch_tun.un_tty->ops->chars_in_buffer)(ch->ch_tun.un_tty) != 0)) {
+		*un_flag = UN_PWAIT;
+		return 0;
+	}
+
+	/*
+	 * Assure that whenever there is printer data in the output
+	 * buffer, there always remains enough space after it to
+	 * turn the printer off.
+	 */
+	space -= ch->ch_digi.digi_offlen;
+
+	if (space <= 0) {
+		*un_flag = UN_EMPTY;
+		return 0;
+	}
+
+	/*
+	 * We measure printer CPS speed by incrementing
+	 * ch_cpstime by (HZ / digi_maxcps) for every
+	 * character we output, restricting output so
+	 * that ch_cpstime never exceeds lbolt.
+	 *
+	 * However if output has not been done for some
+	 * time, lbolt will grow to very much larger than
+	 * ch_cpstime, which would allow essentially
+	 * unlimited amounts of output until ch_cpstime
+	 * finally caught up.   To avoid this, we adjust
+	 * cps_time when necessary so the difference
+	 * between lbolt and ch_cpstime never results
+	 * in sending more than digi_bufsize characters.
+	 *
+	 * This nicely models a printer with an internal
+	 * buffer of digi_bufsize characters.
+	 *
+	 * Get the time between lbolt and ch->ch_cpstime;
+	 */
+
+	tt = jiffies - ch->ch_cpstime;
+
+	/*
+	 * Compute the time required to send digi_bufsize
+	 * characters.
+	 */
+
+	mt = HZ * ch->ch_digi.digi_bufsize / ch->ch_digi.digi_maxcps;
+
+	/*
+	 * Compute the number of characters that can be sent
+	 * without violating the time constraint.   If the
+	 * direct calculation of this number is bigger than
+	 * digi_bufsize, limit the number to digi_bufsize,
+	 * and adjust cpstime to match.
+	 */
+
+	if ((clock_t)(tt + HZ) > (clock_t)(mt + HZ)) {
+		tmax = ch->ch_digi.digi_bufsize;
+		ch->ch_cpstime = jiffies - mt;
+	} else {
+		tmax = ch->ch_digi.digi_maxcps * tt / HZ;
+	}
+
+	/*
+	 * If the time constraint now binds, limit the transmit
+	 * count accordingly, and tentatively arrange to be
+	 * rescheduled based on time.
+	 */
+
+	if (tmax < space) {
+		*un_flag = UN_TIME;
+		space = tmax;
+	}
+
+	/*
+	 * Compute the total number of characters we can
+	 * output before the total number of characters known
+	 * to be in the output queue exceeds digi_maxchar.
+	 */
+
+	tmax = (ch->ch_digi.digi_maxchar -
+		((ch->ch_tin - ch->ch_tout) & TBUF_MASK) -
+		((ch->ch_s_tin - ch->ch_s_tpos) & 0xffff));
+
+
+	/*
+	 * If the digi_maxchar constraint now holds, limit
+	 * the transmit count accordingly, and arrange to
+	 * be rescheduled when the queue becomes empty.
+	 */
+
+	if (space > tmax) {
+		*un_flag = UN_EMPTY;
+		space = tmax;
+	}
+
+	if (space <= 0)
+		*un_flag |= UN_EMPTY;
+
+	return space;
+}
+
+
+static int dgrp_tty_write(struct tty_struct *tty,
+			  const unsigned char *buf,
+			  int count)
+{
+	struct nd_struct *nd;
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int	space;
+	int	n;
+	int	t;
+	int sendcount;
+	int un_flag;
+	ulong lock_flags;
+
+	if (tty == NULL)
+		return 0;
+
+	un = tty->driver_data;
+	if (!un)
+		return 0;
+
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+
+	nd = ch->ch_nd;
+	if (!nd)
+		return 0;
+
+	/*
+	 * Ignore the request if the channel is not ready.
+	 */
+	if (ch->ch_state != CS_READY)
+		return 0;
+
+	spin_lock_irqsave(&dgrp_poll_data.poll_lock, lock_flags);
+
+	/*
+	 * Ignore the request if output is blocked.
+	 */
+	if ((un->un_flag & (UN_EMPTY | UN_LOW | UN_TIME | UN_PWAIT)) != 0) {
+		count = 0;
+		goto out;
+	}
+
+	/*
+	 * Also ignore the request if DPA has this port open,
+	 * and is flow controlled on reading more data.
+	 */
+	if (nd->nd_dpa_debug && nd->nd_dpa_flag & DPA_WAIT_SPACE &&
+		nd->nd_dpa_port == MINOR(tty_devnum(ch->ch_tun.un_tty))) {
+		count = 0;
+		goto out;
+	}
+
+	/*
+	 *	Limit amount we will write to the amount of space
+	 *	available in the channel buffer.
+	 */
+	sendcount = 0;
+
+	space = (ch->ch_tout - ch->ch_tin - 1) & TBUF_MASK;
+
+	/*
+	 * Handle the printer device.
+	 */
+
+	un_flag = UN_LOW;
+
+	if (IS_PRINT(MINOR(tty_devnum(tty)))) {
+		clock_t tt;
+		clock_t mt;
+		unsigned short tmax = 0;
+
+		/*
+		 * If the terminal device is busy, reschedule when
+		 * the terminal device becomes idle.
+		 */
+
+		if (ch->ch_tun.un_open_count != 0 &&
+		    ((ch->ch_tun.un_tty->ops->chars_in_buffer)(ch->ch_tun.un_tty) != 0)) {
+			un->un_flag |= UN_PWAIT;
+			count = 0;
+			goto out;
+		}
+
+		/*
+		 * Assure that whenever there is printer data in the output
+		 * buffer, there always remains enough space after it to
+		 * turn the printer off.
+		 */
+		space -= ch->ch_digi.digi_offlen;
+
+		/*
+		 * Output the printer on string.
+		 */
+
+		if ((ch->ch_flag & CH_PRON) == 0) {
+			space -= ch->ch_digi.digi_onlen;
+
+			if (space < 0) {
+				un->un_flag |= UN_EMPTY;
+				(ch->ch_nd)->nd_tx_work = 1;
+				count = 0;
+				goto out;
+			}
+
+			drp_wmove(ch, 0, ch->ch_digi.digi_onstr,
+				ch->ch_digi.digi_onlen);
+
+			ch->ch_flag |= CH_PRON;
+		}
+
+		/*
+		 * We measure printer CPS speed by incrementing
+		 * ch_cpstime by (HZ / digi_maxcps) for every
+		 * character we output, restricting output so
+		 * that ch_cpstime never exceeds lbolt.
+		 *
+		 * However if output has not been done for some
+		 * time, lbolt will grow to very much larger than
+		 * ch_cpstime, which would allow essentially
+		 * unlimited amounts of output until ch_cpstime
+		 * finally caught up.   To avoid this, we adjust
+		 * cps_time when necessary so the difference
+		 * between lbolt and ch_cpstime never results
+		 * in sending more than digi_bufsize characters.
+		 *
+		 * This nicely models a printer with an internal
+		 * buffer of digi_bufsize characters.
+		 *
+		 * Get the time between lbolt and ch->ch_cpstime;
+		 */
+
+		tt = jiffies - ch->ch_cpstime;
+
+		/*
+		 * Compute the time required to send digi_bufsize
+		 * characters.
+		 */
+
+		mt = HZ * ch->ch_digi.digi_bufsize / ch->ch_digi.digi_maxcps;
+
+		/*
+		 * Compute the number of characters that can be sent
+		 * without violating the time constraint.   If the
+		 * direct calculation of this number is bigger than
+		 * digi_bufsize, limit the number to digi_bufsize,
+		 * and adjust cpstime to match.
+		 */
+
+		if ((clock_t)(tt + HZ) > (clock_t)(mt + HZ)) {
+			tmax = ch->ch_digi.digi_bufsize;
+			ch->ch_cpstime = jiffies - mt;
+		} else {
+			tmax = ch->ch_digi.digi_maxcps * tt / HZ;
+		}
+
+		/*
+		 * If the time constraint now binds, limit the transmit
+		 * count accordingly, and tentatively arrange to be
+		 * rescheduled based on time.
+		 */
+
+		if (tmax < space) {
+			space = tmax;
+			un_flag = UN_TIME;
+		}
+
+		/*
+		 * Compute the total number of characters we can
+		 * output before the total number of characters known
+		 * to be in the output queue exceeds digi_maxchar.
+		 */
+
+		tmax = (ch->ch_digi.digi_maxchar -
+			((ch->ch_tin - ch->ch_tout) & TBUF_MASK) -
+			((ch->ch_s_tin - ch->ch_s_tpos) & 0xffff));
+
+
+		/*
+		 * If the digi_maxchar constraint now holds, limit
+		 * the transmit count accordingly, and arrange to
+		 * be rescheduled when the queue becomes empty.
+		 */
+
+		if (space > tmax) {
+			space = tmax;
+			un_flag = UN_EMPTY;
+		}
+
+	}
+	/*
+	 * Handle the terminal device.
+	 */
+	else {
+
+		/*
+		 * If the printer device is on, turn it off.
+		 */
+
+		if ((ch->ch_flag & CH_PRON) != 0) {
+
+			space -= ch->ch_digi.digi_offlen;
+
+			drp_wmove(ch, 0, ch->ch_digi.digi_offstr,
+				  ch->ch_digi.digi_offlen);
+
+			ch->ch_flag &= ~CH_PRON;
+		}
+	}
+
+	/*
+	 *	If space is 0 and its because the ch->tbuf
+	 *	is full, then Linux will handle a callback when queue
+	 *	space becomes available.
+	 *	tty_write returns count = 0
+	 */
+
+	if (space <= 0) {
+		/* the linux tty_io.c handles this if we return 0 */
+		/* if (fp->flags & O_NONBLOCK) return -EAGAIN; */
+
+		un->un_flag |= UN_EMPTY;
+		(ch->ch_nd)->nd_tx_work = 1;
+		count = 0;
+		goto out;
+	}
+
+	count = min(count, space);
+
+	if (count > 0) {
+
+		un->un_tbusy++;
+
+		/*
+		 *	Copy the buffer contents to the ch_tbuf
+		 *	being careful to wrap around the circular queue
+		 */
+
+		t = TBUF_MAX - ch->ch_tin;
+		n = count;
+
+		if (n >= t) {
+			memcpy(ch->ch_tbuf + ch->ch_tin, buf, t);
+			if (nd->nd_dpa_debug && nd->nd_dpa_port == PORT_NUM(MINOR(tty_devnum(un->un_tty))))
+				dgrp_dpa_data(nd, 0, (char *) buf, t);
+			buf += t;
+			n -= t;
+			ch->ch_tin = 0;
+			sendcount += n;
+		}
+
+		memcpy(ch->ch_tbuf + ch->ch_tin, buf, n);
+		if (nd->nd_dpa_debug && nd->nd_dpa_port == PORT_NUM(MINOR(tty_devnum(un->un_tty))))
+			dgrp_dpa_data(nd, 0, (char *) buf, n);
+		buf += n;
+		ch->ch_tin += n;
+		sendcount += n;
+
+		un->un_tbusy--;
+		(ch->ch_nd)->nd_tx_work = 1;
+		if (ch->ch_edelay != DGRP_RTIME) {
+			(ch->ch_nd)->nd_tx_ready = 1;
+			wake_up_interruptible(&nd->nd_tx_waitq);
+		}
+	}
+
+	ch->ch_txcount += count;
+
+	if (IS_PRINT(MINOR(tty_devnum(tty)))) {
+
+		/*
+		 * Adjust ch_cpstime to account
+		 * for the characters just output.
+		 */
+
+		if (sendcount > 0) {
+			int cc = HZ * sendcount + ch->ch_cpsrem;
+
+			ch->ch_cpstime += cc / ch->ch_digi.digi_maxcps;
+			ch->ch_cpsrem   = cc % ch->ch_digi.digi_maxcps;
+		}
+
+		/*
+		 * If we are now waiting on time, schedule ourself
+		 * back when we'll be able to send a block of
+		 * digi_maxchar characters.
+		 */
+
+		if ((un_flag & UN_TIME) != 0) {
+			ch->ch_waketime = (ch->ch_cpstime +
+				(ch->ch_digi.digi_maxchar * HZ /
+				ch->ch_digi.digi_maxcps));
+		}
+	}
+
+	/*
+	 * If the printer unit is waiting for completion
+	 * of terminal output, get him going again.
+	 */
+
+	if ((ch->ch_pun.un_flag & UN_PWAIT) != 0)
+		(ch->ch_nd)->nd_tx_work = 1;
+
+out:
+	spin_unlock_irqrestore(&dgrp_poll_data.poll_lock, lock_flags);
+
+	return count;
+}
+
+
+/*
+ *	Put a character into ch->ch_buf
+ *
+ *	- used by the line discipline for OPOST processing
+ */
+
+static int dgrp_tty_put_char(struct tty_struct *tty, unsigned char new_char)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	ulong  lock_flags;
+	int space;
+	int retval = 0;
+
+	if (tty == NULL)
+		return 0;
+
+	un = tty->driver_data;
+	if (!un)
+		return 0;
+
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+
+	if (ch->ch_state != CS_READY)
+		return 0;
+
+	spin_lock_irqsave(&dgrp_poll_data.poll_lock, lock_flags);
+
+
+	/*
+	 *	If space is 0 and its because the ch->tbuf
+	 *	Warn and dump the character, there isn't anything else
+	 *	we can do about it.  David_Fries@digi.com
+	 */
+
+	space = (ch->ch_tout - ch->ch_tin - 1) & TBUF_MASK;
+
+	un->un_tbusy++;
+
+	/*
+	 * Output the printer on string if device is TXPrint.
+	 */
+	if (IS_PRINT(MINOR(tty_devnum(tty))) && (ch->ch_flag & CH_PRON) == 0) {
+		if (space < ch->ch_digi.digi_onlen) {
+			un->un_tbusy--;
+			goto out;
+		}
+		space -= ch->ch_digi.digi_onlen;
+		drp_wmove(ch, 0, ch->ch_digi.digi_onstr,
+			  ch->ch_digi.digi_onlen);
+		ch->ch_flag |= CH_PRON;
+	}
+
+	/*
+	 * Output the printer off string if device is NOT TXPrint.
+	 */
+
+	if (!IS_PRINT(MINOR(tty_devnum(tty))) &&
+	    ((ch->ch_flag & CH_PRON) != 0)) {
+		if (space < ch->ch_digi.digi_offlen) {
+			un->un_tbusy--;
+			goto out;
+		}
+
+		space -= ch->ch_digi.digi_offlen;
+		drp_wmove(ch, 0, ch->ch_digi.digi_offstr,
+			  ch->ch_digi.digi_offlen);
+		ch->ch_flag &= ~CH_PRON;
+	}
+
+	if (!space) {
+		un->un_tbusy--;
+		goto out;
+	}
+
+	/*
+	 *	Copy the character to the ch_tbuf being
+	 *	careful to wrap around the circular queue
+	 */
+	ch->ch_tbuf[ch->ch_tin] = new_char;
+	ch->ch_tin = (1 + ch->ch_tin) & TBUF_MASK;
+
+	if (IS_PRINT(MINOR(tty_devnum(tty)))) {
+
+		/*
+		 * Adjust ch_cpstime to account
+		 * for the character just output.
+		 */
+
+		int cc = HZ + ch->ch_cpsrem;
+
+		ch->ch_cpstime += cc / ch->ch_digi.digi_maxcps;
+		ch->ch_cpsrem   = cc % ch->ch_digi.digi_maxcps;
+
+		/*
+		 * If we are now waiting on time, schedule ourself
+		 * back when we'll be able to send a block of
+		 * digi_maxchar characters.
+		 */
+
+		ch->ch_waketime = (ch->ch_cpstime +
+			(ch->ch_digi.digi_maxchar * HZ /
+			ch->ch_digi.digi_maxcps));
+	}
+
+
+	un->un_tbusy--;
+	(ch->ch_nd)->nd_tx_work = 1;
+
+	retval = 1;
+out:
+	spin_unlock_irqrestore(&dgrp_poll_data.poll_lock, lock_flags);
+	return retval;
+}
+
+
+
+/*
+ *	Flush TX buffer (make in == out)
+ *
+ *	check tty_ioctl.c  -- this is called after TCOFLUSH
+ */
+static void dgrp_tty_flush_buffer(struct tty_struct *tty)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+	un = tty->driver_data;
+	if (!un)
+		return;
+
+	ch = un->un_ch;
+	if (!ch)
+		return;
+
+	ch->ch_tout = ch->ch_tin;
+	/* do NOT do this here! */
+	/* ch->ch_s_tpos = ch->ch_s_tin = 0; */
+
+	/* send the flush output command now */
+	ch->ch_send |= RR_TX_FLUSH;
+	(ch->ch_nd)->nd_tx_ready = 1;
+	(ch->ch_nd)->nd_tx_work = 1;
+	wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+
+	if (waitqueue_active(&tty->write_wait))
+		wake_up_interruptible(&tty->write_wait);
+
+	tty_wakeup(tty);
+
+}
+
+/*
+ *	Return space available in Tx buffer
+ *	count = ( ch->ch_tout - ch->ch_tin ) mod (TBUF_MAX - 1)
+ */
+static int dgrp_tty_write_room(struct tty_struct *tty)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int	count;
+
+	if (!tty)
+		return 0;
+
+	un = tty->driver_data;
+	if (!un)
+		return 0;
+
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+
+	count = (ch->ch_tout - ch->ch_tin - 1) & TBUF_MASK;
+
+	/* We *MUST* check this, and return 0 if the Printer Unit cannot
+	 * take any more data within its time constraints...  If we don't
+	 * return 0 and the printer has hit it time constraint, the ld will
+	 * call us back doing a put_char, which cannot be rejected!!!
+	 */
+	if (IS_PRINT(MINOR(tty_devnum(tty)))) {
+		int un_flag = 0;
+		count = dgrp_calculate_txprint_bounds(ch, count, &un_flag);
+		if (count <= 0)
+			count = 0;
+
+		ch->ch_pun.un_flag |= un_flag;
+		(ch->ch_nd)->nd_tx_work = 1;
+	}
+
+	return count;
+}
+
+/*
+ *	Return number of characters that have not been transmitted yet.
+ *	chars_in_buffer = ( ch->ch_tin - ch->ch_tout ) mod (TBUF_MAX - 1)
+ *			+ ( ch->ch_s_tin - ch->ch_s_tout ) mod (0xffff)
+ *			= number of characters "in transit"
+ *
+ * Remember that sequence number math is always with a sixteen bit
+ * mask, not the TBUF_MASK.
+ */
+
+static int dgrp_tty_chars_in_buffer(struct tty_struct *tty)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int	count;
+	int	count1;
+
+	if (!tty)
+		return 0;
+
+	un = tty->driver_data;
+	if (!un)
+		return 0;
+
+	ch = un->un_ch;
+	if (!ch)
+		return 0;
+
+	count1 = count = (ch->ch_tin - ch->ch_tout) & TBUF_MASK;
+	count += (ch->ch_s_tin - ch->ch_s_tpos) & 0xffff;
+	/* one for tbuf, one for the PS */
+
+	/*
+	 * If we are busy transmitting add 1
+	 */
+	count += un->un_tbusy;
+
+	return count;
+}
+
+
+/*****************************************************************************
+ *
+ * Helper applications for dgrp_tty_ioctl()
+ *
+ *****************************************************************************
+ */
+
+
+/**
+ * ch_to_tty_flags() -- convert channel flags to termio flags
+ * @ch_flag: Digi channel flags
+ * @flagtype: type of ch_flag (iflag, oflag or cflag)
+ *
+ * take the channel flags of the specified type and return the
+ * corresponding termio flag
+ */
+static tcflag_t ch_to_tty_flags(ushort ch_flag, char flagtype)
+{
+	tcflag_t retval = 0;
+
+	switch (flagtype) {
+	case 'i':
+		retval = ((ch_flag & IF_IGNBRK) ? IGNBRK : 0)
+		     | ((ch_flag & IF_BRKINT) ? BRKINT : 0)
+		     | ((ch_flag & IF_IGNPAR) ? IGNPAR : 0)
+		     | ((ch_flag & IF_PARMRK) ? PARMRK : 0)
+		     | ((ch_flag & IF_INPCK) ? INPCK  : 0)
+		     | ((ch_flag & IF_ISTRIP) ? ISTRIP : 0)
+		     | ((ch_flag & IF_IXON) ? IXON   : 0)
+		     | ((ch_flag & IF_IXANY) ? IXANY  : 0)
+		     | ((ch_flag & IF_IXOFF) ? IXOFF  : 0);
+		break;
+
+	case 'o':
+		retval = ((ch_flag & OF_OLCUC) ? OLCUC : 0)
+		     | ((ch_flag & OF_ONLCR) ? ONLCR  : 0)
+		     | ((ch_flag & OF_OCRNL) ? OCRNL  : 0)
+		     | ((ch_flag & OF_ONOCR) ? ONOCR  : 0)
+		     | ((ch_flag & OF_ONLRET) ? ONLRET : 0)
+		  /* | ((ch_flag & OF_OTAB3) ? OFILL  : 0) */
+		     | ((ch_flag & OF_TABDLY) ? TABDLY : 0);
+		break;
+
+	case 'c':
+		retval = ((ch_flag & CF_CSTOPB) ? CSTOPB : 0)
+		     | ((ch_flag & CF_CREAD) ? CREAD  : 0)
+		     | ((ch_flag & CF_PARENB) ? PARENB : 0)
+		     | ((ch_flag & CF_PARODD) ? PARODD : 0)
+		     | ((ch_flag & CF_HUPCL) ? HUPCL  : 0);
+
+		switch (ch_flag & CF_CSIZE) {
+		case CF_CS5:
+			retval |= CS5;
+			break;
+		case CF_CS6:
+			retval |= CS6;
+			break;
+		case CF_CS7:
+			retval |= CS7;
+			break;
+		case CF_CS8:
+			retval |= CS8;
+			break;
+		default:
+			retval |= CS8;
+			break;
+		}
+		break;
+	case 'x':
+		break;
+	case 'l':
+		break;
+	default:
+		return 0;
+	}
+
+	return retval;
+}
+
+
+/**
+ * tty_to_ch_flags() -- convert termio flags to digi channel flags
+ * @tty: pointer to a TTY structure holding flag to be converted
+ * @flagtype: identifies which flag (iflags, oflags, or cflags) should
+ *                 be converted
+ *
+ * take the termio flag of the specified type and return the
+ * corresponding Digi version of the flags
+ */
+static ushort tty_to_ch_flags(struct tty_struct *tty, char flagtype)
+{
+	ushort retval = 0;
+	tcflag_t tflag = 0;
+
+	switch (flagtype) {
+	case 'i':
+		tflag  = tty->termios.c_iflag;
+		retval = (I_IGNBRK(tty) ? IF_IGNBRK : 0)
+		      | (I_BRKINT(tty) ? IF_BRKINT : 0)
+		      | (I_IGNPAR(tty) ? IF_IGNPAR : 0)
+		      | (I_PARMRK(tty) ? IF_PARMRK : 0)
+		      | (I_INPCK(tty)  ? IF_INPCK  : 0)
+		      | (I_ISTRIP(tty) ? IF_ISTRIP : 0)
+		      | (I_IXON(tty)   ? IF_IXON   : 0)
+		      | (I_IXANY(tty)  ? IF_IXANY  : 0)
+		      | (I_IXOFF(tty)  ? IF_IXOFF  : 0);
+		break;
+	case 'o':
+		tflag  = tty->termios.c_oflag;
+		/*
+		 * If OPOST is set, then do the post processing in the
+		 * firmware by setting all the processing flags on.
+		 * If ~OPOST, then make sure we are not doing any
+		 * output processing!!
+		 */
+		if (!O_OPOST(tty))
+			retval = 0;
+		else
+			retval = (O_OLCUC(tty) ? OF_OLCUC : 0)
+			     | (O_ONLCR(tty)  ? OF_ONLCR  : 0)
+			     | (O_OCRNL(tty)  ? OF_OCRNL  : 0)
+			     | (O_ONOCR(tty)  ? OF_ONOCR  : 0)
+			     | (O_ONLRET(tty) ? OF_ONLRET : 0)
+			  /* | (O_OFILL(tty)  ? OF_TAB3   : 0) */
+			     | (O_TABDLY(tty) ? OF_TABDLY : 0);
+		break;
+	case 'c':
+		tflag  = tty->termios.c_cflag;
+		retval = (C_CSTOPB(tty) ? CF_CSTOPB : 0)
+		     | (C_CREAD(tty)  ? CF_CREAD  : 0)
+		     | (C_PARENB(tty) ? CF_PARENB : 0)
+		     | (C_PARODD(tty) ? CF_PARODD : 0)
+		     | (C_HUPCL(tty)  ? CF_HUPCL  : 0);
+		switch (C_CSIZE(tty)) {
+		case CS8:
+			retval |= CF_CS8;
+			break;
+		case CS7:
+			retval |= CF_CS7;
+			break;
+		case CS6:
+			retval |= CF_CS6;
+			break;
+		case CS5:
+			retval |= CF_CS5;
+			break;
+		default:
+			retval |= CF_CS8;
+			break;
+		}
+		break;
+	case 'x':
+		break;
+	case 'l':
+		break;
+	default:
+		return 0;
+	}
+
+	return retval;
+}
+
+
+static int dgrp_tty_send_break(struct tty_struct *tty, int msec)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int ret = -EIO;
+
+	if (!tty)
+		return ret;
+
+	un = tty->driver_data;
+	if (!un)
+		return ret;
+
+	ch = un->un_ch;
+	if (!ch)
+		return ret;
+
+	dgrp_send_break(ch, msec);
+	return 0;
+}
+
+
+/*
+ * This routine sends a break character out the serial port.
+ *
+ * duration is in 1/1000's of a second
+ */
+static int dgrp_send_break(struct ch_struct *ch, int msec)
+{
+	ulong x;
+
+	wait_event_interruptible(ch->ch_flag_wait,
+		((ch->ch_flag & CH_TX_BREAK) == 0));
+	ch->ch_break_time += max(msec, 250);
+	ch->ch_send |= RR_TX_BREAK;
+	ch->ch_flag |= CH_TX_BREAK;
+	(ch->ch_nd)->nd_tx_work = 1;
+
+	x = (msec * HZ) / 1000;
+	wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+
+	return 0;
+}
+
+
+/*
+ * Return modem signals to ld.
+ */
+static int dgrp_tty_tiocmget(struct tty_struct *tty)
+{
+	unsigned int mlast;
+	struct un_struct *un = tty->driver_data;
+	struct ch_struct *ch;
+
+	if (!un)
+		return -ENODEV;
+
+	ch = un->un_ch;
+	if (!ch)
+		return -ENODEV;
+
+	mlast = ((ch->ch_s_mlast & ~(DM_RTS | DM_DTR)) |
+		(ch->ch_mout & (DM_RTS | DM_DTR)));
+
+	/* defined in /usr/include/asm/termios.h */
+	mlast =   ((mlast & DM_RTS) ? TIOCM_RTS : 0)
+		| ((mlast & DM_DTR) ? TIOCM_DTR : 0)
+		| ((mlast & DM_CD)  ? TIOCM_CAR : 0)
+		| ((mlast & DM_RI)  ? TIOCM_RNG : 0)
+		| ((mlast & DM_DSR) ? TIOCM_DSR : 0)
+		| ((mlast & DM_CTS) ? TIOCM_CTS : 0);
+
+	return mlast;
+}
+
+
+/*
+ *      Set modem lines
+ */
+static int dgrp_tty_tiocmset(struct tty_struct *tty,
+			     unsigned int set, unsigned int clear)
+{
+	ulong lock_flags;
+	struct un_struct *un = tty->driver_data;
+	struct ch_struct *ch;
+
+	if (!un)
+		return -ENODEV;
+
+	ch = un->un_ch;
+	if (!ch)
+		return -ENODEV;
+
+	if (set & TIOCM_RTS)
+		ch->ch_mout |= DM_RTS;
+
+	if (set & TIOCM_DTR)
+		ch->ch_mout |= DM_DTR;
+
+	if (clear & TIOCM_RTS)
+		ch->ch_mout &= ~(DM_RTS);
+
+	if (clear & TIOCM_DTR)
+		ch->ch_mout &= ~(DM_DTR);
+
+	spin_lock_irqsave(&(ch->ch_nd)->nd_lock, lock_flags);
+	ch->ch_flag |= CH_PARAM;
+	(ch->ch_nd)->nd_tx_work = 1;
+	wake_up_interruptible(&ch->ch_flag_wait);
+
+	spin_unlock_irqrestore(&(ch->ch_nd)->nd_lock, lock_flags);
+
+	return 0;
+}
+
+
+
+/*
+ *      Get current modem status
+ */
+static int get_modem_info(struct ch_struct *ch, unsigned int *value)
+{
+	unsigned int mlast;
+
+	mlast = ((ch->ch_s_mlast & ~(DM_RTS | DM_DTR)) |
+		(ch->ch_mout    &  (DM_RTS | DM_DTR)));
+
+	/* defined in /usr/include/asm/termios.h */
+	mlast =   ((mlast & DM_RTS) ? TIOCM_RTS : 0)
+		| ((mlast & DM_DTR) ? TIOCM_DTR : 0)
+		| ((mlast & DM_CD)  ? TIOCM_CAR : 0)
+		| ((mlast & DM_RI)  ? TIOCM_RNG : 0)
+		| ((mlast & DM_DSR) ? TIOCM_DSR : 0)
+		| ((mlast & DM_CTS) ? TIOCM_CTS : 0);
+	put_user(mlast, (unsigned int __user *) value);
+
+	return 0;
+}
+
+/*
+ *      Set modem lines
+ */
+static int set_modem_info(struct ch_struct *ch, unsigned int command,
+			  unsigned int *value)
+{
+	int error;
+	unsigned int arg;
+	int mval = 0;
+	ulong lock_flags;
+
+	error = access_ok(VERIFY_READ, (void __user *) value, sizeof(int));
+	if (error == 0)
+		return -EFAULT;
+
+	get_user(arg, (unsigned int __user *) value);
+	mval |= ((arg & TIOCM_RTS) ? DM_RTS : 0)
+		| ((arg & TIOCM_DTR) ? DM_DTR : 0);
+
+	switch (command) {
+	case TIOCMBIS:  /* set flags */
+		ch->ch_mout |= mval;
+		break;
+	case TIOCMBIC:  /* clear flags */
+		ch->ch_mout &= ~mval;
+		break;
+	case TIOCMSET:
+		ch->ch_mout = mval;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&(ch->ch_nd)->nd_lock, lock_flags);
+
+	ch->ch_flag |= CH_PARAM;
+	(ch->ch_nd)->nd_tx_work = 1;
+	wake_up_interruptible(&ch->ch_flag_wait);
+
+	spin_unlock_irqrestore(&(ch->ch_nd)->nd_lock, lock_flags);
+
+	return 0;
+}
+
+
+/*
+ *  Assign the custom baud rate to the channel structure
+ */
+static void dgrp_set_custom_speed(struct ch_struct *ch, int newrate)
+{
+	int testdiv;
+	int testrate_high;
+	int testrate_low;
+
+	int deltahigh, deltalow;
+
+	if (newrate < 0)
+		newrate = 0;
+
+	/*
+	 * Since the divisor is stored in a 16-bit integer, we make sure
+	 * we don't allow any rates smaller than a 16-bit integer would allow.
+	 * And of course, rates above the dividend won't fly.
+	 */
+	if (newrate && newrate < ((PORTSERVER_DIVIDEND / 0xFFFF) + 1))
+		newrate = ((PORTSERVER_DIVIDEND / 0xFFFF) + 1);
+	if (newrate && newrate > PORTSERVER_DIVIDEND)
+		newrate = PORTSERVER_DIVIDEND;
+
+	while (newrate > 0) {
+		testdiv = PORTSERVER_DIVIDEND / newrate;
+
+		/*
+		 * If we try to figure out what rate the PortServer would use
+		 * with the test divisor, it will be either equal or higher
+		 * than the requested baud rate.  If we then determine the
+		 * rate with a divisor one higher, we will get the next lower
+		 * supported rate below the requested.
+		 */
+		testrate_high = PORTSERVER_DIVIDEND / testdiv;
+		testrate_low  = PORTSERVER_DIVIDEND / (testdiv + 1);
+
+		/*
+		 * If the rate for the requested divisor is correct, just
+		 * use it and be done.
+		 */
+		if (testrate_high == newrate)
+			break;
+
+		/*
+		 * Otherwise, pick the rate that is closer (i.e. whichever rate
+		 * has a smaller delta).
+		 */
+		deltahigh = testrate_high - newrate;
+		deltalow = newrate - testrate_low;
+
+		if (deltahigh < deltalow)
+			newrate = testrate_high;
+		else
+			newrate = testrate_low;
+
+		break;
+	}
+
+	ch->ch_custom_speed = newrate;
+
+	drp_param(ch);
+
+	return;
+}
+
+
+/*
+ # dgrp_tty_digiseta()
+ *
+ * Ioctl to set the information from ditty.
+ *
+ * NOTE: DIGI_IXON, DSRPACE, DCDPACE, and DTRPACE are unsupported.  JAR 990922
+ */
+static int dgrp_tty_digiseta(struct tty_struct *tty,
+			     struct digi_struct *new_info)
+{
+	struct un_struct *un = tty->driver_data;
+	struct ch_struct *ch;
+
+	if (!un)
+		return -ENODEV;
+
+	ch = un->un_ch;
+	if (!ch)
+		return -ENODEV;
+
+	if (copy_from_user(&ch->ch_digi, (void __user *) new_info,
+			   sizeof(struct digi_struct)))
+		return -EFAULT;
+
+	if ((ch->ch_digi.digi_flags & RTSPACE) ||
+	    (ch->ch_digi.digi_flags & CTSPACE))
+		tty->termios.c_cflag |= CRTSCTS;
+	else
+		tty->termios.c_cflag &= ~CRTSCTS;
+
+	if (ch->ch_digi.digi_maxcps < 1)
+		ch->ch_digi.digi_maxcps = 1;
+
+	if (ch->ch_digi.digi_maxcps > 10000)
+		ch->ch_digi.digi_maxcps = 10000;
+
+	if (ch->ch_digi.digi_bufsize < 10)
+		ch->ch_digi.digi_bufsize = 10;
+
+	if (ch->ch_digi.digi_maxchar < 1)
+		ch->ch_digi.digi_maxchar = 1;
+
+	if (ch->ch_digi.digi_maxchar > ch->ch_digi.digi_bufsize)
+		ch->ch_digi.digi_maxchar = ch->ch_digi.digi_bufsize;
+
+	if (ch->ch_digi.digi_onlen > DIGI_PLEN)
+		ch->ch_digi.digi_onlen = DIGI_PLEN;
+
+	if (ch->ch_digi.digi_offlen > DIGI_PLEN)
+		ch->ch_digi.digi_offlen = DIGI_PLEN;
+
+	/* make the changes now */
+	drp_param(ch);
+
+	return 0;
+}
+
+
+
+/*
+ * dgrp_tty_digigetedelay()
+ *
+ * Ioctl to get the current edelay setting.
+ *
+ *
+ *
+ */
+static int dgrp_tty_digigetedelay(struct tty_struct *tty, int *retinfo)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int tmp;
+
+	if (!retinfo)
+		return -EFAULT;
+
+	if (!tty || tty->magic != TTY_MAGIC)
+		return -EFAULT;
+
+	un = tty->driver_data;
+
+	if (!un)
+		return -ENODEV;
+
+	ch = un->un_ch;
+	if (!ch)
+		return -ENODEV;
+
+	tmp = ch->ch_edelay;
+
+	if (copy_to_user((void __user *) retinfo, &tmp, sizeof(*retinfo)))
+		return -EFAULT;
+
+	return 0;
+}
+
+
+/*
+ * dgrp_tty_digisetedelay()
+ *
+ * Ioctl to set the EDELAY setting
+ *
+ */
+static int dgrp_tty_digisetedelay(struct tty_struct *tty, int *new_info)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int new_digi;
+
+	if (!tty || tty->magic != TTY_MAGIC)
+		return -EFAULT;
+
+	un = tty->driver_data;
+
+	if (!un)
+		return -ENODEV;
+
+	ch = un->un_ch;
+	if (!ch)
+		return -ENODEV;
+
+	if (copy_from_user(&new_digi, (void __user *)new_info, sizeof(int)))
+		return -EFAULT;
+
+	ch->ch_edelay = new_digi;
+
+	/* make the changes now */
+	drp_param(ch);
+
+	return 0;
+}
+
+
+/*
+ *	The usual assortment of ioctl's
+ *
+ *	note:  use tty_check_change to make sure that we are not
+ *	changing the state of a terminal when we are not a process
+ *	in the forground.  See tty_io.c
+ *		rc = tty_check_change(tty);
+ *		if (rc) return rc;
+ */
+static int dgrp_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+			  unsigned long arg)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+	int rc;
+	struct digiflow_struct   dflow;
+
+	if (!tty)
+		return -ENODEV;
+
+	un = tty->driver_data;
+	if (!un)
+		return -ENODEV;
+
+	ch = un->un_ch;
+	if (!ch)
+		return -ENODEV;
+
+	switch (cmd) {
+
+	/*
+	 * Here are all the standard ioctl's that we MUST implement
+	 */
+
+	case TCSBRK:
+		/*
+		 * TCSBRK is SVID version: non-zero arg --> no break
+		 * this behaviour is exploited by tcdrain().
+		 *
+		 * According to POSIX.1 spec (7.2.2.1.2) breaks should be
+		 * between 0.25 and 0.5 seconds
+		 */
+
+		rc = tty_check_change(tty);
+		if (rc)
+			return rc;
+		tty_wait_until_sent(tty, 0);
+
+		if (!arg)
+			rc = dgrp_send_break(ch, 250); /* 1/4 second */
+
+		if (dgrp_tty_chars_in_buffer(tty) != 0)
+			return -EINTR;
+
+		return 0;
+
+	case TCSBRKP:
+		/* support for POSIX tcsendbreak()
+		 *
+		 * According to POSIX.1 spec (7.2.2.1.2) breaks should be
+		 * between 0.25 and 0.5 seconds so we'll ask for something
+		 * in the middle: 0.375 seconds.
+		 */
+		rc = tty_check_change(tty);
+		if (rc)
+			return rc;
+		tty_wait_until_sent(tty, 0);
+
+		rc = dgrp_send_break(ch, arg ? arg*250 : 250);
+
+		if (dgrp_tty_chars_in_buffer(tty) != 0)
+			return -EINTR;
+		return 0;
+
+	case TIOCSBRK:
+		rc = tty_check_change(tty);
+		if (rc)
+			return rc;
+		tty_wait_until_sent(tty, 0);
+
+		/*
+		 * RealPort doesn't support turning on a break unconditionally.
+		 * The RealPort device will stop sending a break automatically
+		 * after the specified time value that we send in.
+		 */
+		rc = dgrp_send_break(ch, 250); /* 1/4 second */
+
+		if (dgrp_tty_chars_in_buffer(tty) != 0)
+			return -EINTR;
+		return 0;
+
+	case TIOCCBRK:
+		/*
+		 * RealPort doesn't support turning off a break unconditionally.
+		 * The RealPort device will stop sending a break automatically
+		 * after the specified time value that was sent when turning on
+		 * the break.
+		 */
+		return 0;
+
+	case TIOCGSOFTCAR:
+		rc = access_ok(VERIFY_WRITE, (void __user *) arg,
+			       sizeof(long));
+		if (rc == 0)
+			return -EFAULT;
+		put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) arg);
+		return 0;
+
+	case TIOCSSOFTCAR:
+		get_user(arg, (unsigned long __user *) arg);
+		tty->termios.c_cflag =
+			((tty->termios.c_cflag & ~CLOCAL) |
+			 (arg ? CLOCAL : 0));
+		return 0;
+
+	case TIOCMGET:
+		rc = access_ok(VERIFY_WRITE, (void __user *) arg,
+				 sizeof(unsigned int));
+		if (rc == 0)
+			return -EFAULT;
+		return get_modem_info(ch, (unsigned int *) arg);
+
+	case TIOCMBIS:
+	case TIOCMBIC:
+	case TIOCMSET:
+		return set_modem_info(ch, cmd, (unsigned int *) arg);
+
+	/*
+	 * Here are any additional ioctl's that we want to implement
+	 */
+
+	case TCFLSH:
+		/*
+		 * The linux tty driver doesn't have a flush
+		 * input routine for the driver, assuming all backed
+		 * up data is in the line disc. buffers.  However,
+		 * we all know that's not the case.  Here, we
+		 * act on the ioctl, but then lie and say we didn't
+		 * so the line discipline will process the flush
+		 * also.
+		 */
+		rc = tty_check_change(tty);
+		if (rc)
+			return rc;
+
+		switch (arg) {
+		case TCIFLUSH:
+		case TCIOFLUSH:
+			/* only flush input if this is the only open unit */
+			if (!IS_PRINT(MINOR(tty_devnum(tty)))) {
+				ch->ch_rout = ch->ch_rin;
+				ch->ch_send |= RR_RX_FLUSH;
+				(ch->ch_nd)->nd_tx_work = 1;
+				(ch->ch_nd)->nd_tx_ready = 1;
+				wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+			}
+			if (arg == TCIFLUSH)
+				break;
+
+		case TCOFLUSH: /* flush output, or the receive buffer */
+			/*
+			 * This is handled in the tty_ioctl.c code
+			 * calling tty_flush_buffer
+			 */
+			break;
+
+		default:
+			/* POSIX.1 says return EINVAL if we got a bad arg */
+			return -EINVAL;
+		}
+		/* pretend we didn't recognize this IOCTL */
+		return -ENOIOCTLCMD;
+
+#ifdef TIOCGETP
+	case TIOCGETP:
+#endif
+	/*****************************************
+	Linux		HPUX		Function
+	TCSETA		TCSETA		- set the termios
+	TCSETAF		TCSETAF		- wait for drain first, then set termios
+	TCSETAW		TCSETAW		- wait for drain, flush the input queue, then set termios
+	- looking at the tty_ioctl code, these command all call our
+	tty_set_termios at the driver's end, when a TCSETA* is sent,
+	it is expecting the tty to have a termio structure,
+	NOT a termios stucture.  These two structures differ in size
+	and the tty_ioctl code does a conversion before processing them both.
+	- we should treat the TCSETAW TCSETAF ioctls the same, and let
+	the tty_ioctl code do the conversion stuff.
+
+	TCSETS
+	TCSETSF		(none)
+	TCSETSW
+	- the associated tty structure has a termios structure.
+	*****************************************/
+
+	case TCGETS:
+	case TCGETA:
+		return -ENOIOCTLCMD;
+
+	case TCSETAW:
+	case TCSETAF:
+	case TCSETSF:
+	case TCSETSW:
+		/*
+		 * The linux tty driver doesn't have a flush
+		 * input routine for the driver, assuming all backed
+		 * up data is in the line disc. buffers.  However,
+		 * we all know that's not the case.  Here, we
+		 * act on the ioctl, but then lie and say we didn't
+		 * so the line discipline will process the flush
+		 * also.
+		 */
+
+		/*
+		 * Also, now that we have TXPrint, we have to check
+		 * if this is the TXPrint device and the terminal
+		 * device is open. If so, do NOT run check_change,
+		 * as the terminal device is ALWAYS the parent.
+		 */
+		if (!IS_PRINT(MINOR(tty_devnum(tty))) ||
+		    !ch->ch_tun.un_open_count) {
+			rc = tty_check_change(tty);
+			if (rc)
+				return rc;
+		}
+
+		/* wait for all the characters in tbuf to drain */
+		tty_wait_until_sent(tty, 0);
+
+		if ((cmd == TCSETSF) || (cmd == TCSETAF)) {
+			/* flush the contents of the rbuf queue */
+			/* TODO:  check if this is print device? */
+			ch->ch_send |= RR_RX_FLUSH;
+			(ch->ch_nd)->nd_tx_ready = 1;
+			(ch->ch_nd)->nd_tx_work = 1;
+			wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+			/* do we need to do this?  just to be safe! */
+			ch->ch_rout = ch->ch_rin;
+		}
+
+		/* pretend we didn't recognize this */
+		return -ENOIOCTLCMD;
+
+	case TCXONC:
+		/*
+		 * The Linux Line Discipline (LD) would do this for us if we
+		 * let it, but we have the special firmware options to do this
+		 * the "right way" regardless of hardware or software flow
+		 * control so we'll do it outselves instead of letting the LD
+		 * do it.
+		 */
+		rc = tty_check_change(tty);
+		if (rc)
+			return rc;
+
+		switch (arg) {
+		case TCOON:
+			dgrp_tty_start(tty);
+			return 0;
+		case TCOOFF:
+			dgrp_tty_stop(tty);
+			return 0;
+		case TCION:
+			dgrp_tty_input_start(tty);
+			return 0;
+		case TCIOFF:
+			dgrp_tty_input_stop(tty);
+			return 0;
+		default:
+			return -EINVAL;
+		}
+
+	case DIGI_GETA:
+		/* get information for ditty */
+		if (copy_to_user((struct digi_struct __user *) arg,
+				 &ch->ch_digi, sizeof(struct digi_struct)))
+			return -EFAULT;
+		break;
+
+	case DIGI_SETAW:
+	case DIGI_SETAF:
+		/* wait for all the characters in tbuf to drain */
+		tty_wait_until_sent(tty, 0);
+
+		if (cmd == DIGI_SETAF) {
+			/* flush the contents of the rbuf queue */
+			/* send down a packet with RR_RX_FLUSH set */
+			ch->ch_send |= RR_RX_FLUSH;
+			(ch->ch_nd)->nd_tx_ready = 1;
+			(ch->ch_nd)->nd_tx_work = 1;
+			wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+			/* do we need to do this?  just to be safe! */
+			ch->ch_rout = ch->ch_rin;
+		}
+
+		/* pretend we didn't recognize this */
+
+	case DIGI_SETA:
+		return dgrp_tty_digiseta(tty, (struct digi_struct *) arg);
+
+	case DIGI_SEDELAY:
+		return dgrp_tty_digisetedelay(tty, (int *) arg);
+
+	case DIGI_GEDELAY:
+		return dgrp_tty_digigetedelay(tty, (int *) arg);
+
+	case DIGI_GETFLOW:
+	case DIGI_GETAFLOW:
+		if (cmd == (DIGI_GETFLOW)) {
+			dflow.startc = tty->termios.c_cc[VSTART];
+			dflow.stopc = tty->termios.c_cc[VSTOP];
+		} else {
+			dflow.startc = ch->ch_xxon;
+			dflow.stopc = ch->ch_xxoff;
+		}
+
+		if (copy_to_user((char __user *)arg, &dflow, sizeof(dflow)))
+			return -EFAULT;
+		break;
+
+	case DIGI_SETFLOW:
+	case DIGI_SETAFLOW:
+
+		if (copy_from_user(&dflow, (char __user *)arg, sizeof(dflow)))
+			return -EFAULT;
+
+		if (cmd == (DIGI_SETFLOW)) {
+			tty->termios.c_cc[VSTART] = dflow.startc;
+			tty->termios.c_cc[VSTOP] = dflow.stopc;
+		} else {
+			ch->ch_xxon = dflow.startc;
+			ch->ch_xxoff = dflow.stopc;
+		}
+		break;
+
+	case DIGI_GETCUSTOMBAUD:
+		rc = access_ok(VERIFY_WRITE, (void __user *) arg, sizeof(int));
+		if (rc == 0)
+			return -EFAULT;
+		put_user(ch->ch_custom_speed, (unsigned int __user *) arg);
+		break;
+
+	case DIGI_SETCUSTOMBAUD:
+	{
+		int new_rate;
+
+		get_user(new_rate, (unsigned int __user *) arg);
+		dgrp_set_custom_speed(ch, new_rate);
+
+		break;
+	}
+
+	default:
+		return -ENOIOCTLCMD;
+	}
+
+	return 0;
+}
+
+/*
+ *  This routine allows the tty driver to be notified when
+ *  the device's termios setting have changed.  Note that we
+ *  should be prepared to accept the case where old == NULL
+ *  and try to do something rational.
+ *
+ *  So we need to make sure that our copies of ch_oflag,
+ *  ch_clag, and ch_iflag reflect the tty->termios flags.
+ */
+static void dgrp_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
+{
+	struct ktermios *ts;
+	struct ch_struct *ch;
+	struct un_struct *un;
+
+	/* seems silly, but we have to check all these! */
+	if (!tty)
+		return;
+
+	un = tty->driver_data;
+	if (!un)
+		return;
+
+	ts = &tty->termios;
+
+	ch = un->un_ch;
+	if (!ch)
+		return;
+
+	drp_param(ch);
+
+	/* the CLOCAL flag has just been set */
+	if (!(old->c_cflag & CLOCAL) && C_CLOCAL(tty))
+		wake_up_interruptible(&un->un_open_wait);
+}
+
+
+/*
+ *	Throttle receiving data.  We just set a bit and stop reading
+ *	data out of the channel buffer.  It will back up and the
+ *	FEP will do whatever is necessary to stop the far end.
+ */
+static void dgrp_tty_throttle(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	ch = ((struct un_struct *) tty->driver_data)->un_ch;
+	if (!ch)
+		return;
+
+	ch->ch_flag |= CH_RXSTOP;
+}
+
+
+static void dgrp_tty_unthrottle(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	ch = ((struct un_struct *) tty->driver_data)->un_ch;
+	if (!ch)
+		return;
+
+	ch->ch_flag &= ~CH_RXSTOP;
+}
+
+/*
+ *	Stop the transmitter
+ */
+static void dgrp_tty_stop(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	ch = ((struct un_struct *) tty->driver_data)->un_ch;
+	if (!ch)
+		return;
+
+	ch->ch_send |= RR_TX_STOP;
+	ch->ch_send &= ~RR_TX_START;
+
+	/* make the change NOW! */
+	(ch->ch_nd)->nd_tx_ready = 1;
+	if (waitqueue_active(&(ch->ch_nd)->nd_tx_waitq))
+		wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+}
+
+/*
+ *	Start the transmitter
+ */
+static void dgrp_tty_start(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	ch = ((struct un_struct *) tty->driver_data)->un_ch;
+	if (!ch)
+		return;
+
+	/* TODO: don't do anything if the transmitter is not stopped */
+
+	ch->ch_send |= RR_TX_START;
+	ch->ch_send &= ~RR_TX_STOP;
+
+	/* make the change NOW! */
+	(ch->ch_nd)->nd_tx_ready = 1;
+	(ch->ch_nd)->nd_tx_work = 1;
+	if (waitqueue_active(&(ch->ch_nd)->nd_tx_waitq))
+		wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+
+}
+
+/*
+ *	Stop the reciever
+ */
+static void dgrp_tty_input_stop(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	ch = ((struct un_struct *) tty->driver_data)->un_ch;
+	if (!ch)
+		return;
+
+	ch->ch_send |= RR_RX_STOP;
+	ch->ch_send &= ~RR_RX_START;
+	(ch->ch_nd)->nd_tx_ready = 1;
+	if (waitqueue_active(&(ch->ch_nd)->nd_tx_waitq))
+		wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+
+}
+
+
+static void dgrp_tty_send_xchar(struct tty_struct *tty, char c)
+{
+	struct un_struct *un;
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	un = tty->driver_data;
+	if (!un)
+		return;
+
+	ch = un->un_ch;
+	if (!ch)
+		return;
+	if (c == STOP_CHAR(tty))
+		ch->ch_send |= RR_RX_STOP;
+	else if (c == START_CHAR(tty))
+		ch->ch_send |= RR_RX_START;
+
+	ch->ch_nd->nd_tx_ready = 1;
+	ch->ch_nd->nd_tx_work = 1;
+
+	return;
+}
+
+
+static void dgrp_tty_input_start(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+
+	if (!tty)
+		return;
+
+	ch = ((struct un_struct *) tty->driver_data)->un_ch;
+	if (!ch)
+		return;
+
+	ch->ch_send |= RR_RX_START;
+	ch->ch_send &= ~RR_RX_STOP;
+	(ch->ch_nd)->nd_tx_ready = 1;
+	(ch->ch_nd)->nd_tx_work = 1;
+	if (waitqueue_active(&(ch->ch_nd)->nd_tx_waitq))
+		wake_up_interruptible(&(ch->ch_nd)->nd_tx_waitq);
+
+}
+
+
+/*
+ *	Hangup the port.  Like a close, but don't wait for output
+ *	to drain.
+ *
+ *	How do we close all the channels that are open?
+ */
+static void dgrp_tty_hangup(struct tty_struct *tty)
+{
+	struct ch_struct *ch;
+	struct nd_struct *nd;
+	struct un_struct *un;
+
+	if (!tty)
+		return;
+
+	un = tty->driver_data;
+	if (!un)
+		return;
+
+	ch = un->un_ch;
+	if (!ch)
+		return;
+
+	nd = ch->ch_nd;
+
+	if (C_HUPCL(tty)) {
+		/* LOWER DTR */
+		ch->ch_mout &= ~DM_DTR;
+		/* Don't do this here */
+		/* ch->ch_flag |= CH_HANGUP; */
+		ch->ch_nd->nd_tx_ready = 1;
+		ch->ch_nd->nd_tx_work  = 1;
+		if (waitqueue_active(&ch->ch_flag_wait))
+			wake_up_interruptible(&ch->ch_flag_wait);
+	}
+
+}
+
+/************************************************************************/
+/*                                                                      */
+/*       TTY Initialization/Cleanup Functions                           */
+/*                                                                      */
+/************************************************************************/
+
+/*
+ *	Uninitialize the TTY portion of the supplied node.  Free all
+ *      memory and resources associated with this node.  Do it in reverse
+ *      allocation order: this might possibly result in less fragmentation
+ *      of memory, though I don't know this for sure.
+ */
+void
+dgrp_tty_uninit(struct nd_struct *nd)
+{
+	char id[3];
+
+	ID_TO_CHAR(nd->nd_ID, id);
+
+	if (nd->nd_ttdriver_flags & SERIAL_TTDRV_REG) {
+		tty_unregister_driver(nd->nd_serial_ttdriver);
+
+		kfree(nd->nd_serial_ttdriver->ttys);
+		nd->nd_serial_ttdriver->ttys = NULL;
+
+		put_tty_driver(nd->nd_serial_ttdriver);
+		nd->nd_ttdriver_flags &= ~SERIAL_TTDRV_REG;
+	}
+
+	if (nd->nd_ttdriver_flags & CALLOUT_TTDRV_REG) {
+		tty_unregister_driver(nd->nd_callout_ttdriver);
+
+		kfree(nd->nd_callout_ttdriver->ttys);
+		nd->nd_callout_ttdriver->ttys = NULL;
+
+		put_tty_driver(nd->nd_callout_ttdriver);
+		nd->nd_ttdriver_flags &= ~CALLOUT_TTDRV_REG;
+	}
+
+	if (nd->nd_ttdriver_flags & XPRINT_TTDRV_REG) {
+		tty_unregister_driver(nd->nd_xprint_ttdriver);
+
+		kfree(nd->nd_xprint_ttdriver->ttys);
+		nd->nd_xprint_ttdriver->ttys = NULL;
+
+		put_tty_driver(nd->nd_xprint_ttdriver);
+		nd->nd_ttdriver_flags &= ~XPRINT_TTDRV_REG;
+	}
+}
+
+
+
+/*
+ *     Initialize the TTY portion of the supplied node.
+ */
+int
+dgrp_tty_init(struct nd_struct *nd)
+{
+	char id[3];
+	int  rc;
+	int  i;
+
+	ID_TO_CHAR(nd->nd_ID, id);
+
+	/*
+	 *  Initialize the TTDRIVER structures.
+	 */
+
+	nd->nd_serial_ttdriver = alloc_tty_driver(CHAN_MAX);
+	sprintf(nd->nd_serial_name,  "tty_dgrp_%s_", id);
+
+	nd->nd_serial_ttdriver->owner = THIS_MODULE;
+	nd->nd_serial_ttdriver->name = nd->nd_serial_name;
+	nd->nd_serial_ttdriver->name_base = 0;
+	nd->nd_serial_ttdriver->major = 0;
+	nd->nd_serial_ttdriver->minor_start = 0;
+	nd->nd_serial_ttdriver->type = TTY_DRIVER_TYPE_SERIAL;
+	nd->nd_serial_ttdriver->subtype = SERIAL_TYPE_NORMAL;
+	nd->nd_serial_ttdriver->init_termios = DefaultTermios;
+	nd->nd_serial_ttdriver->driver_name = "dgrp";
+	nd->nd_serial_ttdriver->flags = (TTY_DRIVER_REAL_RAW |
+					 TTY_DRIVER_DYNAMIC_DEV |
+					 TTY_DRIVER_HARDWARE_BREAK);
+
+	/* The kernel wants space to store pointers to tty_structs. */
+	nd->nd_serial_ttdriver->ttys =
+		kzalloc(CHAN_MAX * sizeof(struct tty_struct *), GFP_KERNEL);
+	if (!nd->nd_serial_ttdriver->ttys)
+		return -ENOMEM;
+
+	tty_set_operations(nd->nd_serial_ttdriver, &dgrp_tty_ops);
+
+	if (!(nd->nd_ttdriver_flags & SERIAL_TTDRV_REG)) {
+		/*
+		 *   Register tty devices
+		 */
+		rc = tty_register_driver(nd->nd_serial_ttdriver);
+		if (rc < 0) {
+			/*
+			 * If errno is EBUSY, this means there are no more
+			 * slots available to have us auto-majored.
+			 * (Which is currently supported up to 256)
+			 *
+			 * We can still request majors above 256,
+			 * we just have to do it manually.
+			 */
+			if (rc == -EBUSY) {
+				int i;
+				int max_majors = 1U << (32 - MINORBITS);
+				for (i = 256; i < max_majors; i++) {
+					nd->nd_serial_ttdriver->major = i;
+					rc = tty_register_driver(nd->nd_serial_ttdriver);
+					if (rc >= 0)
+						break;
+				}
+				/* Really fail now, since we ran out
+				 * of majors to try. */
+				if (i == max_majors)
+					return rc;
+
+			} else {
+				return rc;
+			}
+		}
+		nd->nd_ttdriver_flags |= SERIAL_TTDRV_REG;
+	}
+
+	nd->nd_callout_ttdriver = alloc_tty_driver(CHAN_MAX);
+	sprintf(nd->nd_callout_name, "cu_dgrp_%s_",  id);
+
+	nd->nd_callout_ttdriver->owner = THIS_MODULE;
+	nd->nd_callout_ttdriver->name = nd->nd_callout_name;
+	nd->nd_callout_ttdriver->name_base = 0;
+	nd->nd_callout_ttdriver->major = nd->nd_serial_ttdriver->major;
+	nd->nd_callout_ttdriver->minor_start = 0x40;
+	nd->nd_callout_ttdriver->type = TTY_DRIVER_TYPE_SERIAL;
+	nd->nd_callout_ttdriver->subtype = SERIAL_TYPE_CALLOUT;
+	nd->nd_callout_ttdriver->init_termios = DefaultTermios;
+	nd->nd_callout_ttdriver->driver_name = "dgrp";
+	nd->nd_callout_ttdriver->flags = (TTY_DRIVER_REAL_RAW |
+					  TTY_DRIVER_DYNAMIC_DEV |
+					  TTY_DRIVER_HARDWARE_BREAK);
+
+	/* The kernel wants space to store pointers to tty_structs. */
+	nd->nd_callout_ttdriver->ttys =
+		kzalloc(CHAN_MAX * sizeof(struct tty_struct *), GFP_KERNEL);
+	if (!nd->nd_callout_ttdriver->ttys)
+		return -ENOMEM;
+
+	tty_set_operations(nd->nd_callout_ttdriver, &dgrp_tty_ops);
+
+	if (dgrp_register_cudevices) {
+		if (!(nd->nd_ttdriver_flags & CALLOUT_TTDRV_REG)) {
+			/*
+			 *   Register cu devices
+			 */
+			rc = tty_register_driver(nd->nd_callout_ttdriver);
+			if (rc < 0)
+				return rc;
+			nd->nd_ttdriver_flags |= CALLOUT_TTDRV_REG;
+		}
+	}
+
+
+	nd->nd_xprint_ttdriver = alloc_tty_driver(CHAN_MAX);
+	sprintf(nd->nd_xprint_name,  "pr_dgrp_%s_", id);
+
+	nd->nd_xprint_ttdriver->owner = THIS_MODULE;
+	nd->nd_xprint_ttdriver->name = nd->nd_xprint_name;
+	nd->nd_xprint_ttdriver->name_base = 0;
+	nd->nd_xprint_ttdriver->major = nd->nd_serial_ttdriver->major;
+	nd->nd_xprint_ttdriver->minor_start = 0x80;
+	nd->nd_xprint_ttdriver->type = TTY_DRIVER_TYPE_SERIAL;
+	nd->nd_xprint_ttdriver->subtype = SERIAL_TYPE_XPRINT;
+	nd->nd_xprint_ttdriver->init_termios = DefaultTermios;
+	nd->nd_xprint_ttdriver->driver_name = "dgrp";
+	nd->nd_xprint_ttdriver->flags = (TTY_DRIVER_REAL_RAW |
+					 TTY_DRIVER_DYNAMIC_DEV |
+					 TTY_DRIVER_HARDWARE_BREAK);
+
+	/* The kernel wants space to store pointers to tty_structs. */
+	nd->nd_xprint_ttdriver->ttys =
+		kzalloc(CHAN_MAX * sizeof(struct tty_struct *), GFP_KERNEL);
+	if (!nd->nd_xprint_ttdriver->ttys)
+		return -ENOMEM;
+
+	tty_set_operations(nd->nd_xprint_ttdriver, &dgrp_tty_ops);
+
+	if (dgrp_register_prdevices) {
+		if (!(nd->nd_ttdriver_flags & XPRINT_TTDRV_REG)) {
+			/*
+			 *   Register transparent print devices
+			 */
+			rc = tty_register_driver(nd->nd_xprint_ttdriver);
+			if (rc < 0)
+				return rc;
+			nd->nd_ttdriver_flags |= XPRINT_TTDRV_REG;
+		}
+	}
+
+	for (i = 0; i < CHAN_MAX; i++) {
+		struct ch_struct *ch = nd->nd_chan + i;
+
+		ch->ch_nd = nd;
+		ch->ch_digi = digi_init;
+		ch->ch_edelay = 100;
+		ch->ch_custom_speed = 0;
+		ch->ch_portnum = i;
+		ch->ch_tun.un_ch = ch;
+		ch->ch_pun.un_ch = ch;
+		ch->ch_tun.un_type = SERIAL_TYPE_NORMAL;
+		ch->ch_pun.un_type = SERIAL_TYPE_XPRINT;
+
+		init_waitqueue_head(&(ch->ch_flag_wait));
+		init_waitqueue_head(&(ch->ch_sleep));
+
+		init_waitqueue_head(&(ch->ch_tun.un_open_wait));
+		init_waitqueue_head(&(ch->ch_tun.un_close_wait));
+
+		init_waitqueue_head(&(ch->ch_pun.un_open_wait));
+		init_waitqueue_head(&(ch->ch_pun.un_close_wait));
+		tty_port_init(&ch->port);
+		tty_port_init(&ch->port);
+	}
+	return 0;
+}
diff --git a/drivers/staging/dgrp/digirp.h b/drivers/staging/dgrp/digirp.h
new file mode 100644
index 00000000000..33c1394fade
--- /dev/null
+++ b/drivers/staging/dgrp/digirp.h
@@ -0,0 +1,129 @@
+/************************************************************************
+ * HP-UX Realport Daemon interface file.
+ *
+ * Copyright (C) 1998, by Digi International.  All Rights Reserved.
+ ************************************************************************/
+
+#ifndef _DIGIDRP_H
+#define _DIGIDRP_H
+
+/************************************************************************
+ * This file contains defines for the ioctl() interface to
+ * the realport driver.   This ioctl() interface is used by the
+ * daemon to set speed setup parameters honored by the driver.
+ ************************************************************************/
+
+struct link_struct {
+	int lk_fast_rate;  /* Fast line rate to be used
+			      when the delay is less-equal
+			      to lk_fast_delay */
+
+	int lk_fast_delay; /* Fast line rate delay in
+			      milliseconds */
+
+	int lk_slow_rate;  /* Slow line rate to be used when
+			      the delay is greater-equal
+			      to lk_slow_delay */
+
+	int lk_slow_delay; /* Slow line rate delay in
+			      milliseconds */
+
+	int lk_header_size; /* Estimated packet header size
+			       when sent across the slowest
+			       link.  */
+};
+
+#define DIGI_GETLINK	_IOW('e', 103, struct link_struct)	/* Get link parameters */
+#define DIGI_SETLINK	_IOW('e', 104, struct link_struct)	/* Set link parameters */
+
+
+/************************************************************************
+ * This module provides application access to special Digi
+ * serial line enhancements which are not standard UNIX(tm) features.
+ ************************************************************************/
+
+struct	digiflow_struct {
+	unsigned char	startc;				/* flow cntl start char	*/
+	unsigned char	stopc;				/* flow cntl stop char	*/
+};
+
+/************************************************************************
+ * Values for digi_flags
+ ************************************************************************/
+#define DIGI_IXON	0x0001		/* Handle IXON in the FEP	*/
+#define DIGI_FAST	0x0002		/* Fast baud rates		*/
+#define RTSPACE		0x0004		/* RTS input flow control	*/
+#define CTSPACE		0x0008		/* CTS output flow control	*/
+#define DSRPACE		0x0010		/* DSR output flow control	*/
+#define DCDPACE		0x0020		/* DCD output flow control	*/
+#define DTRPACE		0x0040		/* DTR input flow control	*/
+#define DIGI_COOK	0x0080		/* Cooked processing done in FEP */
+#define DIGI_FORCEDCD	0x0100		/* Force carrier		*/
+#define	DIGI_ALTPIN	0x0200		/* Alternate RJ-45 pin config	*/
+#define	DIGI_AIXON	0x0400		/* Aux flow control in fep	*/
+#define	DIGI_PRINTER	0x0800		/* Hold port open for flow cntrl */
+#define DIGI_PP_INPUT	0x1000		/* Change parallel port to input */
+#define DIGI_422	0x4000		/* Change parallel port to input */
+#define DIGI_RTS_TOGGLE	0x8000		/* Support RTS Toggle		 */
+
+
+/************************************************************************
+ * Values associated with transparent print
+ ************************************************************************/
+#define DIGI_PLEN	8		/* String length */
+#define	DIGI_TSIZ	10		/* Terminal string len */
+
+
+/************************************************************************
+ * Structure used with ioctl commands for DIGI parameters.
+ ************************************************************************/
+struct digi_struct {
+	unsigned short	digi_flags;		/* Flags (see above)	*/
+	unsigned short	digi_maxcps;		/* Max printer CPS	*/
+	unsigned short	digi_maxchar;		/* Max chars in print queue */
+	unsigned short	digi_bufsize;		/* Buffer size		*/
+	unsigned char	digi_onlen;		/* Length of ON string	*/
+	unsigned char	digi_offlen;		/* Length of OFF string	*/
+	char		digi_onstr[DIGI_PLEN];	/* Printer on string	*/
+	char		digi_offstr[DIGI_PLEN];	/* Printer off string	*/
+	char		digi_term[DIGI_TSIZ];	/* terminal string	*/
+};
+
+/************************************************************************
+ * Ioctl command arguments for DIGI parameters.
+ ************************************************************************/
+/* Read params */
+#define DIGI_GETA	_IOR('e', 94, struct digi_struct)
+
+/* Set params */
+#define DIGI_SETA	_IOW('e', 95, struct digi_struct)
+
+/* Drain & set params	*/
+#define DIGI_SETAW	_IOW('e', 96, struct digi_struct)
+
+/* Drain, flush & set params */
+#define DIGI_SETAF	_IOW('e', 97, struct digi_struct)
+
+/* Get startc/stopc flow control characters */
+#define	DIGI_GETFLOW	_IOR('e', 99, struct digiflow_struct)
+
+/* Set startc/stopc flow control characters */
+#define	DIGI_SETFLOW	_IOW('e', 100, struct digiflow_struct)
+
+/* Get Aux. startc/stopc flow control chars */
+#define	DIGI_GETAFLOW	_IOR('e', 101, struct digiflow_struct)
+
+/* Set Aux. startc/stopc flow control chars */
+#define	DIGI_SETAFLOW	_IOW('e', 102, struct digiflow_struct)
+
+/* Set integer baud rate */
+#define	DIGI_SETCUSTOMBAUD	_IOW('e', 106, int)
+
+/* Get integer baud rate */
+#define	DIGI_GETCUSTOMBAUD	_IOR('e', 107, int)
+
+#define	DIGI_GEDELAY	_IOR('d', 246, int)	/* Get edelay */
+#define	DIGI_SEDELAY	_IOW('d', 247, int)	/* Get edelay */
+
+
+#endif /* _DIGIDRP_H */
diff --git a/drivers/staging/dgrp/drp.h b/drivers/staging/dgrp/drp.h
new file mode 100644
index 00000000000..84a1e7be489
--- /dev/null
+++ b/drivers/staging/dgrp/drp.h
@@ -0,0 +1,693 @@
+/*
+ *
+ * Copyright 1999 Digi International (www.digi.com)
+ *     Gene Olson  <gene at digi dot com>
+ *     James Puzzo <jamesp at digi dot com>
+ *     Scott Kilau <scottk at digi dot com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ */
+
+/************************************************************************
+ * Master include file for Linux Realport Driver.
+ ************************************************************************/
+
+#ifndef __DRP_H
+#define __DRP_H
+
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <linux/semaphore.h>
+#include <linux/tty.h>
+
+
+#include "digirp.h"
+
+/************************************************************************
+ * Tuning parameters.
+ ************************************************************************/
+
+#define CHAN_MAX	64		/* Max # ports per server */
+
+#define SEQ_MAX		128		/* Max # transmit sequences (2^n) */
+#define SEQ_MASK	(SEQ_MAX-1)	/* Sequence buffer modulus mask */
+
+#define TBUF_MAX	4096		/* Size of transmit buffer (2^n) */
+#define RBUF_MAX	4096		/* Size of receive buffer (2^n) */
+
+#define TBUF_MASK	(TBUF_MAX-1)	/* Transmit buffer modulus mask */
+#define RBUF_MASK	(RBUF_MAX-1)	/* Receive buffer modulus mask */
+
+#define TBUF_LOW	1000		/* Transmit low water mark */
+
+#define UIO_BASE	1000		/* Base for write operations */
+#define UIO_MIN		2000		/* Minimum size application buffer */
+#define UIO_MAX		8100		/* Unix I/O buffer size */
+
+#define MON_MAX		65536		/* Monitor buffer size (2^n) */
+#define MON_MASK	(MON_MAX-1)	/* Monitor wrap mask */
+
+#define DPA_MAX		65536		/* DPA buffer size (2^n) */
+#define DPA_MASK	(DPA_MAX-1)	/* DPA wrap mask */
+#define DPA_HIGH_WATER	58000		/* Enforce flow control when
+					 * over this amount
+					 */
+
+#define IDLE_MAX	(20 * HZ)	/* Max TCP link idle time */
+
+#define MAX_DESC_LEN	100		/* Maximum length of stored PS
+					 * description
+					 */
+
+#define WRITEBUFLEN	((4096) + 4)    /* 4 extra for alignment play space */
+
+#define VPDSIZE		512
+
+/************************************************************************
+ * Minor device decoding conventions.
+ ************************************************************************
+ *
+ * For Linux, the net and mon devices are handled via "proc", so we
+ * only have to mux the "tty" devices.  Since every PortServer will
+ * have an individual major number, the PortServer number does not
+ * need to be encoded, and in fact, does not need to exist.
+ *
+ */
+
+/*
+ * Port device decoding conventions:
+ *
+ *	Device 00 - 3f        64 dial-in modem devices. (tty)
+ *	Device 40 - 7f        64 dial-out tty devices.  (cu)
+ *	Device 80 - bf        64 dial-out printer devices.
+ *
+ *  IS_PRINT(dev)		This is a printer device.
+ *
+ *  OPEN_CATEGORY(dev)		Specifies the device category.  No two
+ *				devices of different categories may be open
+ *				at the same time.
+ *
+ * The following require the category returned by OPEN_CATEGORY().
+ *
+ *  OPEN_WAIT_AVAIL(cat)	Waits on open until the device becomes
+ *				available.  Fails if NDELAY specified.
+ *
+ *  OPEN_WAIT_CARRIER(cat)	Waits on open if carrier is not present.
+ *				Succeeds if NDELAY is given.
+ *
+ *  OPEN_FORCES_CARRIER(cat)	Carrier is forced high on open.
+ *
+ */
+
+#define PORT_NUM(dev)			((dev) & 0x3f)
+
+#define OPEN_CATEGORY(dev)		((((dev) & 0x80) & 0x40))
+#define IS_PRINT(dev)			(((dev) & 0xff) >= 0x80)
+
+#define OPEN_WAIT_AVAIL(cat)		(((cat) & 0x40) == 0x000)
+#define OPEN_WAIT_CARRIER(cat)		(((cat) & 0x40) == 0x000)
+#define OPEN_FORCES_CARRIER(cat)	(((cat) & 0x40) != 0x000)
+
+
+/************************************************************************
+ * Modem signal defines for 16450/16550 compatible FEP.
+ * set in ch_mout, ch_mflow, ch_mlast etc
+ ************************************************************************/
+
+/* TODO : Re-verify that these modem signal definitions are correct */
+
+#define DM_DTR		0x01
+#define DM_RTS		0x02
+#define DM_RTS_TOGGLE	0x04
+
+#define DM_OUT1		0x04
+#define DM_OUT2		0x08
+
+#define DM_CTS		0x10
+#define DM_DSR		0x20
+#define DM_RI		0x40
+#define DM_CD		0x80		/* This is the DCD flag */
+
+
+/************************************************************************
+ * Realport Event Flags.
+ ************************************************************************/
+
+#define EV_OPU		0x0001		/* Ouput paused by client */
+#define EV_OPS		0x0002		/* Output paused by XOFF */
+#define EV_OPX		0x0004		/* Output paused by XXOFF */
+#define EV_OPH		0x0008		/* Output paused by MFLOW */
+#define EV_IPU		0x0010		/* Input paused by client */
+#define EV_IPS		0x0020		/* Input paused by hi/low water */
+#define EV_TXB		0x0040		/* Transmit break pending */
+#define EV_TXI		0x0080		/* Transmit immediate pending */
+#define EV_TXF		0x0100		/* Transmit flow control pending */
+#define EV_RXB		0x0200		/* Break received */
+
+
+/************************************************************************
+ * Realport CFLAGS.
+ ************************************************************************/
+
+#define CF_CS5		0x0000		/* 5 bit characters */
+#define CF_CS6		0x0010		/* 6 bit characters */
+#define CF_CS7		0x0020		/* 7 bit characters */
+#define CF_CS8		0x0030		/* 8 bit characters */
+#define CF_CSIZE	0x0030		/* Character size */
+#define CF_CSTOPB	0x0040		/* Two stop bits */
+#define CF_CREAD	0x0080		/* Enable receiver */
+#define CF_PARENB	0x0100		/* Enable parity */
+#define CF_PARODD	0x0200		/* Odd parity */
+#define CF_HUPCL	0x0400		/* Drop DTR on close */
+
+
+/************************************************************************
+ * Realport XFLAGS.
+ ************************************************************************/
+
+#define XF_XPAR		0x0001		/* Enable Mark/Space Parity */
+#define XF_XMODEM	0x0002		/* Enable in-band modem signalling */
+#define XF_XCASE	0x0004		/* Convert special characters */
+#define XF_XEDATA	0x0008		/* Error data in stream */
+#define XF_XTOSS	0x0010		/* Toss IXANY characters */
+#define XF_XIXON	0x0020		/* xxon/xxoff enable */
+
+
+/************************************************************************
+ * Realport IFLAGS.
+ ************************************************************************/
+
+#define IF_IGNBRK	0x0001		/* Ignore input break */
+#define IF_BRKINT	0x0002		/* Break interrupt */
+#define IF_IGNPAR	0x0004		/* Ignore error characters */
+#define IF_PARMRK	0x0008		/* Error chars marked with 0xff */
+#define IF_INPCK	0x0010		/* Input parity checking enabled */
+#define IF_ISTRIP	0x0020		/* Input chars masked with 0x7F */
+#define IF_IXON		0x0400		/* Output software flow control */
+#define IF_IXANY	0x0800		/* Restart output on any char */
+#define	IF_IXOFF	0x1000		/* Input software flow control */
+#define IF_DOSMODE	0x8000		/* 16450-compatible errors */
+
+
+/************************************************************************
+ * Realport OFLAGS.
+ ************************************************************************/
+
+#define OF_OLCUC	0x0002		/* Map lower to upper case */
+#define OF_ONLCR	0x0004		/* Map NL to CR-NL */
+#define OF_OCRNL	0x0008		/* Map CR to NL */
+#define OF_ONOCR	0x0010		/* No CR output at column 0 */
+#define OF_ONLRET	0x0020		/* Assume NL does NL/CR */
+#define OF_TAB3		0x1800		/* Tabs expand to 8 spaces */
+#define OF_TABDLY	0x1800		/* Tab delay */
+
+/************************************************************************
+ * Unit flag definitions for un_flag.
+ ************************************************************************/
+
+/* These are the DIGI unit flags */
+#define UN_EXCL		0x00010000	/* Exclusive open */
+#define UN_STICKY	0x00020000	/* TTY Settings are now sticky */
+#define UN_BUSY		0x00040000	/* Some work this channel */
+#define UN_PWAIT	0x00080000	/* Printer waiting for terminal */
+#define UN_TIME		0x00100000	/* Waiting on time */
+#define UN_EMPTY	0x00200000	/* Waiting output queue empty */
+#define UN_LOW		0x00400000	/* Waiting output low water */
+#define UN_DIGI_MASK	0x00FF0000	/* Waiting output low water */
+
+/*
+ * Definitions for async_struct (and serial_struct) flags field
+ *
+ * these are the ASYNC flags copied from serial.h
+ *
+ */
+#define UN_HUP_NOTIFY	0x0001 /* Notify getty on hangups and
+				* closes on the callout port
+				*/
+#define UN_FOURPORT	0x0002	/* Set OU1, OUT2 per AST Fourport settings */
+#define UN_SAK		0x0004	/* Secure Attention Key (Orange book) */
+#define UN_SPLIT_TERMIOS 0x0008 /* Separate termios for dialin/callout */
+
+#define UN_SPD_MASK	0x0030
+#define UN_SPD_HI	0x0010	/* Use 56000 instead of 38400 bps */
+#define UN_SPD_VHI	0x0020	/* Use 115200 instead of 38400 bps */
+#define UN_SPD_CUST	0x0030	/* Use user-specified divisor */
+
+#define UN_SKIP_TEST	0x0040 /* Skip UART test during autoconfiguration */
+#define UN_AUTO_IRQ	0x0080 /* Do automatic IRQ during autoconfiguration */
+
+#define UN_SESSION_LOCKOUT 0x0100 /* Lock out cua opens based on session */
+#define UN_PGRP_LOCKOUT	   0x0200 /* Lock out cua opens based on pgrp */
+#define UN_CALLOUT_NOHUP   0x0400 /* Don't do hangups for cua device */
+
+#define UN_FLAGS	0x0FFF	/* Possible legal async flags */
+#define UN_USR_MASK	0x0430	/* Legal flags that non-privileged
+				 * users can set or reset
+				 */
+
+#define UN_INITIALIZED		0x80000000 /* Serial port was initialized */
+#define UN_CALLOUT_ACTIVE	0x40000000 /* Call out device is active */
+#define UN_NORMAL_ACTIVE	0x20000000 /* Normal device is active */
+#define UN_BOOT_AUTOCONF	0x10000000 /* Autoconfigure port on bootup */
+#define UN_CLOSING		0x08000000 /* Serial port is closing */
+#define UN_CTS_FLOW		0x04000000 /* Do CTS flow control */
+#define UN_CHECK_CD		0x02000000 /* i.e., CLOCAL */
+#define UN_SHARE_IRQ		0x01000000 /* for multifunction cards */
+
+
+/************************************************************************
+ * Structure for terminal or printer unit.  struct un_struct
+ *
+ * Note that in some places the code assumes the "tty_t" is placed
+ * first in the structure.
+ ************************************************************************/
+
+struct un_struct {
+	struct tty_struct *un_tty;		/* System TTY struct */
+	struct ch_struct *un_ch;		/* Associated channel */
+
+	ushort     un_open_count;		/* Successful open count */
+	int		un_flag;		/* Unit flags */
+	ushort     un_tbusy;		/* Busy transmit count */
+
+	wait_queue_head_t  un_open_wait;
+	wait_queue_head_t  un_close_wait;
+	ushort	un_type;
+	struct device *un_sysfs;
+};
+
+
+/************************************************************************
+ * Channel State Numbers for ch_state.
+ ************************************************************************/
+
+/*
+ * The ordering is important.
+ *
+ *    state <= CS_WAIT_CANCEL implies the channel is definitely closed.
+ *
+ *    state >= CS_WAIT_FAIL  implies the channel is definitely open.
+ *
+ *    state >= CS_READY implies data is allowed on the channel.
+ */
+
+enum dgrp_ch_state_t {
+	CS_IDLE = 0,	    /* Channel is idle */
+	CS_WAIT_OPEN = 1,   /* Waiting for Immediate Open Resp */
+	CS_WAIT_CANCEL = 2, /* Waiting for Per/Incom Cancel Resp */
+	CS_WAIT_FAIL = 3,   /* Waiting for Immed Open Failure */
+	CS_SEND_QUERY = 4,  /* Ready to send Port Query */
+	CS_WAIT_QUERY = 5,  /* Waiting for Port Query Response */
+	CS_READY = 6,	    /* Ready to accept commands and data */
+	CS_SEND_CLOSE =	7,  /* Ready to send Close Request */
+	CS_WAIT_CLOSE =	8   /* Waiting for Close Response */
+};
+
+/************************************************************************
+ * Device flag definitions for ch_flag.
+ ************************************************************************/
+
+/*
+ *  Note that the state of the two carrier based flags is key.	When
+ *  we check for carrier state transitions, we look at the current
+ *  physical state of the DCD line and compare it with PHYS_CD (which
+ *  was the state the last time we checked), and we also determine
+ *  a new virtual state (composite of the physical state, FORCEDCD,
+ *  CLOCAL, etc.) and compare it with VIRT_CD.
+ *
+ *  VIRTUAL transitions high will have the side effect of waking blocked
+ *  opens.
+ *
+ *  PHYSICAL transitions low will cause hangups to occur _IF_ the virtual
+ *  state is also low.	We DON'T want to hangup on a PURE virtual drop.
+ */
+
+#define CH_HANGUP	0x00002		/* Server port ready to close */
+
+#define CH_VIRT_CD	0x00004		/* Carrier was virtually present */
+#define CH_PHYS_CD	0x00008		/* Carrier was physically present */
+
+#define CH_CLOCAL	0x00010		/* CLOCAL set in cflags */
+#define CH_BAUD0	0x00020		/* Baud rate zero hangup */
+
+#define CH_FAST_READ	0x00040		/* Fast reads are enabled */
+#define CH_FAST_WRITE	0x00080		/* Fast writes are enabled */
+
+#define CH_PRON		0x00100		/* Printer on string active */
+#define CH_RX_FLUSH	0x00200		/* Flushing receive data */
+#define CH_LOW		0x00400		/* Thread waiting for LOW water */
+#define CH_EMPTY	0x00800		/* Thread waiting for EMPTY */
+#define CH_DRAIN	0x01000		/* Close is waiting to drain */
+#define CH_INPUT	0x02000		/* Thread waiting for INPUT */
+#define CH_RXSTOP	0x04000		/* Stop output to ldisc */
+#define CH_PARAM	0x08000		/* A parameter was updated */
+#define CH_WAITING_SYNC 0x10000		/* A pending sync was assigned
+					 * to this port.
+					 */
+#define CH_PORT_GONE	0x20000		/* Port has disappeared */
+#define CH_TX_BREAK	0x40000		/* TX Break to be sent,
+					 * but has not yet.
+					 */
+
+/************************************************************************
+ * Types of Open Requests for ch_otype.
+ ************************************************************************/
+
+#define OTYPE_IMMEDIATE	  0		/* Immediate Open */
+#define OTYPE_PERSISTENT  1		/* Persistent Open */
+#define OTYPE_INCOMING	  2		/* Incoming Open */
+
+
+/************************************************************************
+ * Request/Response flags.
+ ************************************************************************/
+
+#define RR_SEQUENCE	0x0001		/* Get server RLAST, TIN */
+#define RR_STATUS	0x0002		/* Get server MINT, EINT */
+#define RR_BUFFER	0x0004		/* Get server RSIZE, TSIZE */
+#define RR_CAPABILITY	0x0008		/* Get server port capabilities */
+
+#define RR_TX_FLUSH	0x0040		/* Flush output buffers */
+#define RR_RX_FLUSH	0x0080		/* Flush input buffers */
+
+#define RR_TX_STOP	0x0100		/* Pause output */
+#define RR_RX_STOP	0x0200		/* Pause input */
+#define RR_TX_START	0x0400		/* Start output */
+#define RR_RX_START	0x0800		/* Start input */
+
+#define RR_TX_BREAK	0x1000		/* Send BREAK */
+#define RR_TX_ICHAR	0x2000		/* Send character immediate */
+
+
+/************************************************************************
+ * Channel information structure.   struct ch_struct
+ ************************************************************************/
+
+struct ch_struct {
+	struct digi_struct ch_digi;		/* Digi variables */
+	int	ch_edelay;		/* Digi edelay */
+
+	struct tty_port port;
+	struct un_struct ch_tun;	/* Terminal unit info */
+	struct un_struct ch_pun;	/* Printer unit info */
+
+	struct nd_struct *ch_nd;	/* Node pointer */
+	u8  *ch_tbuf;		/* Local Transmit Buffer */
+	u8  *ch_rbuf;		/* Local Receive Buffer */
+	ulong	ch_cpstime;		/* Printer CPS time */
+	ulong	ch_waketime;		/* Printer wake time */
+
+	ulong	ch_flag;		/* CH_* flags */
+
+	enum dgrp_ch_state_t ch_state;		/* CS_* Protocol state */
+	ushort	ch_send;		/* Bit vector of RR_* requests */
+	ushort	ch_expect;		/* Bit vector of RR_* responses */
+	ushort	ch_wait_carrier;	/* Thread count waiting for carrier */
+	ushort	ch_wait_count[3];	/* Thread count waiting by otype */
+
+	ushort	ch_portnum;		/* Port number */
+	ushort	ch_open_count;		/* Successful open count */
+	ushort	ch_category;		/* Device category */
+	ushort	ch_open_error;		/* Last open error number */
+	ushort	ch_break_time;		/* Pending break request time */
+	ushort	ch_cpsrem;		/* Printer CPS remainder */
+	ushort	ch_ocook;		/* Realport fastcook oflags */
+	ushort	ch_inwait;		/* Thread count in CLIST input */
+
+	ushort	ch_tin;			/* Local transmit buffer in ptr */
+	ushort	ch_tout;		/* Local transmit buffer out ptr */
+	ushort	ch_s_tin;		/* Realport TIN */
+	ushort	ch_s_tpos;		/* Realport TPOS */
+	ushort	ch_s_tsize;		/* Realport TSIZE */
+	ushort	ch_s_treq;		/* Realport TREQ */
+	ushort	ch_s_elast;		/* Realport ELAST */
+
+	ushort	ch_rin;			/* Local receive buffer in ptr */
+	ushort	ch_rout;		/* Local receive buffer out ptr */
+	ushort	ch_s_rin;		/* Realport RIN */
+	/* David Fries 7-13-2001, ch_s_rin should be renamed ch_s_rout because
+	 * the variable we want to represent is the PortServer's ROUT, which is
+	 * the sequence number for the next byte the PortServer will send us.
+	 * RIN is the sequence number for the next byte the PortServer will
+	 * receive from the uart.  The port server will send data as long as
+	 * ROUT is less than RWIN.  What would happen is the port is opened, it
+	 * receives data, it gives the value of RIN, we set the RWIN to
+	 * RIN+RBUF_MAX-1, it sends us RWIN-ROUT bytes which overflows.	 ROUT
+	 * is set to zero when the port is opened, so we start at zero and
+	 * count up as data is received.
+	 */
+	ushort	ch_s_rwin;		/* Realport RWIN */
+	ushort	ch_s_rsize;		/* Realport RSIZE */
+
+	ushort	ch_tmax;		/* Local TMAX */
+	ushort	ch_ttime;		/* Local TTIME */
+	ushort	ch_rmax;		/* Local RMAX */
+	ushort	ch_rtime;		/* Local RTIME */
+	ushort	ch_rlow;		/* Local RLOW */
+	ushort	ch_rhigh;		/* Local RHIGH */
+
+	ushort	ch_s_tmax;		/* Realport TMAX */
+	ushort	ch_s_ttime;		/* Realport TTIME */
+	ushort	ch_s_rmax;		/* Realport RMAX */
+	ushort	ch_s_rtime;		/* Realport RTIME */
+	ushort	ch_s_rlow;		/* Realport RLOW */
+	ushort	ch_s_rhigh;		/* Realport RHIGH */
+
+	ushort	ch_brate;		/* Local baud rate */
+	ushort	ch_cflag;		/* Local tty cflags */
+	ushort	ch_iflag;		/* Local tty iflags */
+	ushort	ch_oflag;		/* Local tty oflags */
+	ushort	ch_xflag;		/* Local tty xflags */
+
+	ushort	ch_s_brate;		/* Realport BRATE */
+	ushort	ch_s_cflag;		/* Realport CFLAG */
+	ushort	ch_s_iflag;		/* Realport IFLAG */
+	ushort	ch_s_oflag;		/* Realport OFLAG */
+	ushort	ch_s_xflag;		/* Realport XFLAG */
+
+	u8	ch_otype;		/* Open request type */
+	u8	ch_pscan_savechar;	/* Last character read by parity scan */
+	u8	ch_pscan_state;		/* PScan State based on last 2 chars */
+	u8	ch_otype_waiting;	/* Type of open pending in server */
+	u8	ch_flush_seq;		/* Receive flush end sequence */
+	u8	ch_s_mlast;		/* Realport MLAST */
+
+	u8	ch_mout;		/* Local MOUT */
+	u8	ch_mflow;		/* Local MFLOW */
+	u8	ch_mctrl;		/* Local MCTRL */
+	u8	ch_xon;			/* Local XON */
+	u8	ch_xoff;		/* Local XOFF */
+	u8	ch_lnext;		/* Local LNEXT */
+	u8	ch_xxon;		/* Local XXON */
+	u8	ch_xxoff;		/* Local XXOFF */
+
+	u8	ch_s_mout;		/* Realport MOUT */
+	u8	ch_s_mflow;		/* Realport MFLOW */
+	u8	ch_s_mctrl;		/* Realport MCTRL */
+	u8	ch_s_xon;		/* Realport XON */
+	u8	ch_s_xoff;		/* Realport XOFF */
+	u8	ch_s_lnext;		/* Realport LNEXT */
+	u8	ch_s_xxon;		/* Realport XXON */
+	u8	ch_s_xxoff;		/* Realport XXOFF */
+
+	wait_queue_head_t ch_flag_wait;	/* Wait queue for ch_flag changes */
+	wait_queue_head_t ch_sleep;	/* Wait queue for my_sleep() */
+
+	int	ch_custom_speed;	/* Realport custom speed */
+	int	ch_txcount;		/* Running TX count */
+	int	ch_rxcount;		/* Running RX count */
+};
+
+
+/************************************************************************
+ * Node State definitions.
+ ************************************************************************/
+
+enum dgrp_nd_state_t {
+	NS_CLOSED = 0,	   /* Network device is closed */
+	NS_IDLE = 1,	   /* Network connection inactive */
+	NS_SEND_QUERY =	2, /* Send server query */
+	NS_WAIT_QUERY =	3, /* Wait for query response */
+	NS_READY = 4,	   /* Network ready */
+	NS_SEND_ERROR =	5  /* Must send error hangup */
+};
+
+#define ND_STATE_STR(x) \
+	((x) == NS_CLOSED     ? "CLOSED"     : \
+	((x) == NS_IDLE	      ? "IDLE"	     : \
+	((x) == NS_SEND_QUERY ? "SEND_QUERY" : \
+	((x) == NS_WAIT_QUERY ? "WAIT_QUERY" : \
+	((x) == NS_READY      ? "READY"	     : \
+	((x) == NS_SEND_ERROR ? "SEND_ERROR" : "UNKNOWN"))))))
+
+/************************************************************************
+ * Node Flag definitions.
+ ************************************************************************/
+
+#define ND_SELECT	0x0001		/* Multiple net read selects */
+#define ND_DEB_WAIT	0x0002		/* Debug Device waiting */
+
+
+/************************************************************************
+ * Monitoring flag definitions.
+ ************************************************************************/
+
+#define MON_WAIT_DATA	0x0001		/* Waiting for buffer data */
+#define MON_WAIT_SPACE	0x0002		/* Waiting for buffer space */
+
+/************************************************************************
+ * DPA flag definitions.
+ ************************************************************************/
+
+#define DPA_WAIT_DATA	0x0001		/* Waiting for buffer data */
+#define DPA_WAIT_SPACE	0x0002		/* Waiting for buffer space */
+
+
+/************************************************************************
+ * Definitions taken from Realport Dump.
+ ************************************************************************/
+
+#define RPDUMP_MAGIC	"Digi-RealPort-1.0"
+
+#define RPDUMP_MESSAGE	0xE2		/* Descriptive message */
+#define RPDUMP_RESET	0xE7		/* Connection reset */
+#define RPDUMP_CLIENT	0xE8		/* Client data */
+#define RPDUMP_SERVER	0xE9		/* Server data */
+
+
+/************************************************************************
+ * Node request/response definitions.
+ ************************************************************************/
+
+#define NR_ECHO		0x0001		/* Server echo packet */
+#define NR_IDENT	0x0002		/* Server Product ID */
+#define NR_CAPABILITY	0x0004		/* Server Capabilties */
+#define NR_VPD		0x0008		/* Server VPD, if any */
+#define NR_PASSWORD	0x0010		/* Server Password */
+
+/************************************************************************
+ * Registration status of the node's Linux struct tty_driver structures.
+ ************************************************************************/
+#define SERIAL_TTDRV_REG   0x0001     /* nd_serial_ttdriver registered	*/
+#define CALLOUT_TTDRV_REG  0x0002     /* nd_callout_ttdriver registered */
+#define XPRINT_TTDRV_REG   0x0004     /* nd_xprint_ttdriver registered	*/
+
+
+/************************************************************************
+ * Node structure.  There exists one of these for each associated
+ * realport server.
+ ************************************************************************/
+
+struct nd_struct {
+	struct list_head	list;
+	long	      nd_major;		   /* Node's major number	    */
+	long	      nd_ID;		   /* Node's ID code		    */
+
+	char	      nd_serial_name[50];   /* "tty_dgrp_<id>_" + null	    */
+	char	      nd_callout_name[50];  /* "cu_dgrp_<id>_" + null	    */
+	char	      nd_xprint_name[50];   /* "pr_dgrp_<id>_" + null	    */
+
+	char	     password[16];	  /* Password for server, if needed */
+	int	     nd_tty_ref_cnt;	  /* Linux tty reference count	   */
+
+	struct proc_dir_entry *nd_net_de; /* Dir entry for /proc/dgrp/net  */
+	struct proc_dir_entry *nd_mon_de; /* Dir entry for /proc/dgrp/mon  */
+	struct proc_dir_entry *nd_ports_de; /* Dir entry for /proc/dgrp/ports*/
+	struct proc_dir_entry *nd_dpa_de; /* Dir entry for /proc/dgrp/dpa  */
+
+	spinlock_t nd_lock;		  /* General node lock		   */
+
+	struct semaphore nd_net_semaphore; /* Net read/write lock	    */
+	struct semaphore nd_mon_semaphore; /* Monitor buffer lock	    */
+	spinlock_t nd_dpa_lock;		/* DPA buffer lock	     */
+
+	enum dgrp_nd_state_t nd_state;	  /* NS_* network state */
+	int	      nd_chan_count;	   /* # active channels		    */
+	int	      nd_flag;		   /* Node flags		    */
+	int	      nd_send;		   /* Responses to send		    */
+	int	      nd_expect;	   /* Responses we expect	    */
+
+	u8	 *nd_iobuf;	       /* Network R/W Buffer		*/
+	wait_queue_head_t nd_tx_waitq;	  /* Network select wait queue	   */
+
+	u8	 *nd_inputbuf;	       /* Input Buffer			*/
+	u8	 *nd_inputflagbuf;     /* Input Flags Buffer		*/
+
+	int	      nd_tx_deposit;	   /* Accumulated transmit deposits */
+	int	      nd_tx_charge;	   /* Accumulated transmit charges  */
+	int	      nd_tx_credit;	   /* Current TX credit		    */
+	int	      nd_tx_ready;	   /* Ready to transmit		    */
+	int	      nd_tx_work;	   /* TX work waiting		    */
+	ulong	     nd_tx_time;	  /* Last transmit time		   */
+	ulong	     nd_poll_time;	  /* Next scheduled poll time	   */
+
+	int	      nd_delay;		   /* Current TX delay		    */
+	int	      nd_rate;		   /* Current TX rate		    */
+	struct link_struct nd_link;		/* Link speed params.		 */
+
+	int	      nd_seq_in;	   /* TX seq in ptr		    */
+	int	      nd_seq_out;	   /* TX seq out ptr		    */
+	int	      nd_unack;		   /* Unacknowledged byte count	    */
+	int	      nd_remain;	   /* Remaining receive bytes	    */
+	int	      nd_tx_module;	   /* Current TX module #	    */
+	int	      nd_rx_module;	   /* Current RX module #	    */
+	char	     *nd_error;		   /* Protocol error message	    */
+
+	int	      nd_write_count;	   /* drp_write() call count	    */
+	int	      nd_read_count;	   /* drp_read() count		    */
+	int	      nd_send_count;	   /* TCP message sent		    */
+	int	      nd_tx_byte;	   /* Transmit byte count	    */
+	int	      nd_rx_byte;	   /* Receive byte count	    */
+
+	ulong	     nd_mon_lbolt;	 /* Monitor start time		   */
+	int	      nd_mon_flag;	  /* Monitor flags		    */
+	int	      nd_mon_in;	  /* Monitor in pointer		    */
+	int	      nd_mon_out;	  /* Monitor out pointer	    */
+	wait_queue_head_t nd_mon_wqueue;  /* Monitor wait queue (on flags)  */
+	u8	 *nd_mon_buf;	      /* Monitor buffer			*/
+
+	ulong	     nd_dpa_lbolt;	/* DPA start time	      */
+	int	     nd_dpa_flag;	/* DPA flags		      */
+	int	     nd_dpa_in;		/* DPA in pointer	      */
+	int	     nd_dpa_out;	/* DPA out pointer	      */
+	wait_queue_head_t nd_dpa_wqueue; /* DPA wait queue (on flags)  */
+	u8	  *nd_dpa_buf;	/* DPA buffer		      */
+
+	uint	     nd_dpa_debug;
+	uint	     nd_dpa_port;
+
+	wait_queue_head_t nd_seq_wque[SEQ_MAX];	  /* TX thread wait queues */
+	u8	  nd_seq_wait[SEQ_MAX];	  /* Transmit thread wait count */
+
+	ushort	     nd_seq_size[SEQ_MAX];   /* Transmit seq packet size   */
+	ulong	     nd_seq_time[SEQ_MAX];   /* Transmit seq packet time   */
+
+	ushort	     nd_hw_ver;		  /* HW version returned from PS   */
+	ushort	     nd_sw_ver;		  /* SW version returned from PS   */
+	uint	     nd_hw_id;		  /* HW ID returned from PS	   */
+	u8	  nd_ps_desc[MAX_DESC_LEN+1];  /* Description from PS	*/
+	uint	     nd_vpd_len;		/* VPD len, if any */
+	u8	     nd_vpd[VPDSIZE];		/* VPD, if any */
+
+	ulong	     nd_ttdriver_flags;	  /* Registration status	    */
+	struct tty_driver *nd_serial_ttdriver;	/* Linux TTYDRIVER structure */
+	struct tty_driver *nd_callout_ttdriver; /* Linux TTYDRIVER structure */
+	struct tty_driver *nd_xprint_ttdriver;	/* Linux TTYDRIVER structure */
+
+	u8	     *nd_writebuf;		/* Used to cache data read
+						 * from user
+						 */
+	struct ch_struct nd_chan[CHAN_MAX];  /* Channel array		    */
+	struct device *nd_class_dev;	/* Hang our sysfs stuff off of here */
+};
+
+#endif /* __DRP_H */
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index 029725c89e5..413da0d6b9f 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -3955,12 +3955,7 @@ static void et131x_hwaddr_init(struct et131x_adapter *adapter)
 	 * EEPROM then we need to generate the last octet and set it on the
 	 * device
 	 */
-	if (adapter->rom_addr[0] == 0x00 &&
-	    adapter->rom_addr[1] == 0x00 &&
-	    adapter->rom_addr[2] == 0x00 &&
-	    adapter->rom_addr[3] == 0x00 &&
-	    adapter->rom_addr[4] == 0x00 &&
-	    adapter->rom_addr[5] == 0x00) {
+	if (is_zero_ether_addr(adapter->rom_addr)) {
 		/*
 		 * We need to randomly generate the last octet so we
 		 * decrease our chances of setting the mac address to
@@ -3995,16 +3990,14 @@ static void et131x_hwaddr_init(struct et131x_adapter *adapter)
 static int et131x_pci_init(struct et131x_adapter *adapter,
 						struct pci_dev *pdev)
 {
-	int cap = pci_pcie_cap(pdev);
 	u16 max_payload;
-	u16 ctl;
 	int i, rc;
 
 	rc = et131x_init_eeprom(adapter);
 	if (rc < 0)
 		goto out;
 
-	if (!cap) {
+	if (!pci_is_pcie(pdev)) {
 		dev_err(&pdev->dev, "Missing PCIe capabilities\n");
 		goto err_out;
 	}
@@ -4012,7 +4005,7 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 	/* Let's set up the PORT LOGIC Register.  First we need to know what
 	 * the max_payload_size is
 	 */
-	if (pci_read_config_word(pdev, cap + PCI_EXP_DEVCAP, &max_payload)) {
+	if (pcie_capability_read_word(pdev, PCI_EXP_DEVCAP, &max_payload)) {
 		dev_err(&pdev->dev,
 		    "Could not read PCI config space for Max Payload Size\n");
 		goto err_out;
@@ -4049,17 +4042,10 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 	}
 
 	/* Change the max read size to 2k */
-	if (pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl)) {
+	if (pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
+				PCI_EXP_DEVCTL_READRQ, 0x4 << 12)) {
 		dev_err(&pdev->dev,
-			"Could not read PCI config space for Max read size\n");
-		goto err_out;
-	}
-
-	ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | (0x04 << 12);
-
-	if (pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl)) {
-		dev_err(&pdev->dev,
-		      "Could not write PCI config space for Max read size\n");
+			"Couldn't change PCI config space for Max read size\n");
 		goto err_out;
 	}
 
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
index f8b8e71284d..47cc365c630 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
@@ -94,27 +94,27 @@ void put_request_value(struct net_device *dev, long lvalue);
 u16 hdr_checksum(struct pseudo_hdr *pHdr);
 
 struct dsp_file_hdr {
-	u32  version_id;	// Version ID of this image format.
-	u32  package_id;	// Package ID of code release.
-	u32  build_date;	// Date/time stamp when file was built.
-	u32  commands_offset;	// Offset to attached commands in Pseudo Hdr format.
-	u32  loader_offset;	// Offset to bootloader code.
-	u32  loader_code_address;	// Start address of bootloader.
-	u32  loader_code_end;	// Where bootloader code ends.
+	u32  version_id;	/* Version ID of this image format. */
+	u32  package_id;	/* Package ID of code release. */
+	u32  build_date;	/* Date/time stamp when file was built. */
+	u32  commands_offset;	/* Offset to attached commands in Pseudo Hdr format. */
+	u32  loader_offset;	/* Offset to bootloader code. */
+	u32  loader_code_address;	/* Start address of bootloader. */
+	u32  loader_code_end;	/* Where bootloader code ends. */
 	u32  loader_code_size;
-	u32  version_data_offset;	// Offset were scrambled version data begins.
-	u32  version_data_size;	// Size, in words, of scrambled version data.
-	u32  nDspImages;	// Number of DSP images in file.
+	u32  version_data_offset;	/* Offset were scrambled version data begins. */
+	u32  version_data_size;	/* Size, in words, of scrambled version data. */
+	u32  nDspImages;	/* Number of DSP images in file. */
 } __attribute__ ((packed));
 
 struct dsp_image_info {
-	u32  coff_date;		// Date/time when DSP Coff image was built.
-	u32  begin_offset;	// Offset in file where image begins.
-	u32  end_offset;	// Offset in file where image begins.
-	u32  run_address;	// On chip Start address of DSP code.
-	u32  image_size;	// Size of image.
-	u32  version;		// Embedded version # of DSP code.
-	unsigned short checksum;	// Dsp File checksum
+	u32  coff_date;		/* Date/time when DSP Coff image was built. */
+	u32  begin_offset;	/* Offset in file where image begins. */
+	u32  end_offset;	/* Offset in file where image begins. */
+	u32  run_address;	/* On chip Start address of DSP code. */
+	u32  image_size;	/* Size of image. */
+	u32  version;		/* Embedded version # of DSP code. */
+	unsigned short checksum;	/* Dsp File checksum */
 	unsigned short pad1;
 } __attribute__ ((packed));
 
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index 31929ef5332..809fa488696 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -73,7 +73,7 @@ static int ft1000_control(struct ft1000_device *ft1000dev, unsigned int pipe,
 	}
 
 	ret = usb_control_msg(ft1000dev->dev, pipe, request, requesttype,
-			      value, index, data, size, LARGE_TIMEOUT);
+			      value, index, data, size, timeout);
 
 	if (ret > 0)
 		ret = 0;
@@ -110,7 +110,7 @@ int ft1000_read_register(struct ft1000_device *ft1000dev, u16* Data,
 			     nRegIndx,
 			     Data,
 			     2,
-			     LARGE_TIMEOUT);
+			     USB_CTRL_GET_TIMEOUT);
 
 	return ret;
 }
@@ -143,7 +143,7 @@ int ft1000_write_register(struct ft1000_device *ft1000dev, u16 value,
 			     nRegIndx,
 			     NULL,
 			     0,
-			     LARGE_TIMEOUT);
+			     USB_CTRL_SET_TIMEOUT);
 
 	return ret;
 }
@@ -178,7 +178,7 @@ int ft1000_read_dpram32(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer,
 			     indx,
 			     buffer,
 			     cnt,
-			     LARGE_TIMEOUT);
+			     USB_CTRL_GET_TIMEOUT);
 
 	return ret;
 }
@@ -215,7 +215,7 @@ int ft1000_write_dpram32(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer,
 			     indx,
 			     buffer,
 			     cnt,
-			     LARGE_TIMEOUT);
+			     USB_CTRL_SET_TIMEOUT);
 
 	return ret;
 }
@@ -255,7 +255,7 @@ int ft1000_read_dpram16(struct ft1000_device *ft1000dev, u16 indx, u8 *buffer,
 			     indx,
 			     buffer,
 			     2,
-			     LARGE_TIMEOUT);
+			     USB_CTRL_GET_TIMEOUT);
 
 	return ret;
 }
@@ -294,7 +294,7 @@ int ft1000_write_dpram16(struct ft1000_device *ft1000dev, u16 indx, u16 value, u
 			     indx,
 			     NULL,
 			     0,
-			     LARGE_TIMEOUT);
+			     USB_CTRL_SET_TIMEOUT);
 
 	return ret;
 }
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
index 642bb89942f..2aa6a1c7fd3 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
@@ -36,8 +36,6 @@ struct app_info_block {
 
 #define FT1000_STATUS_CLOSING  0x01
 
-#define LARGE_TIMEOUT   5000
-
 #define DSPBCMSGID              0x10
 
 /* Electrabuzz specific DPRAM mapping */
diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
index 80bde053fbc..e26c6a8b262 100644
--- a/drivers/staging/gdm72xx/gdm_qos.c
+++ b/drivers/staging/gdm72xx/gdm_qos.c
@@ -106,8 +106,8 @@ void gdm_qos_init(void *nic_ptr)
 
 	for (i = 0 ; i < QOS_MAX; i++) {
 		INIT_LIST_HEAD(&qcb->qos_list[i]);
-		qcb->csr[i].QoSBufCount = 0;
-		qcb->csr[i].Enabled = 0;
+		qcb->csr[i].qos_buf_count = 0;
+		qcb->csr[i].enabled = 0;
 	}
 
 	qcb->qos_list_cnt = 0;
@@ -133,8 +133,8 @@ void gdm_qos_release_list(void *nic_ptr)
 	spin_lock_irqsave(&qcb->qos_lock, flags);
 
 	for (i = 0; i < QOS_MAX; i++) {
-		qcb->csr[i].QoSBufCount = 0;
-		qcb->csr[i].Enabled = 0;
+		qcb->csr[i].qos_buf_count = 0;
+		qcb->csr[i].enabled = 0;
 	}
 
 	qcb->qos_list_cnt = 0;
@@ -153,42 +153,42 @@ static u32 chk_ipv4_rule(struct gdm_wimax_csr_s *csr, u8 *Stream, u8 *port)
 {
 	int i;
 
-	if (csr->ClassifierRuleEnable&IPTYPEOFSERVICE) {
-		if (((Stream[1] & csr->IPToSMask) < csr->IPToSLow) ||
-		((Stream[1] & csr->IPToSMask) > csr->IPToSHigh))
+	if (csr->classifier_rule_en&IPTYPEOFSERVICE) {
+		if (((Stream[1] & csr->ip2s_mask) < csr->ip2s_lo) ||
+		((Stream[1] & csr->ip2s_mask) > csr->ip2s_hi))
 			return 1;
 	}
 
-	if (csr->ClassifierRuleEnable&PROTOCOL) {
-		if (Stream[9] != csr->Protocol)
+	if (csr->classifier_rule_en&PROTOCOL) {
+		if (Stream[9] != csr->protocol)
 			return 1;
 	}
 
-	if (csr->ClassifierRuleEnable&IPMASKEDSRCADDRESS) {
+	if (csr->classifier_rule_en&IPMASKEDSRCADDRESS) {
 		for (i = 0; i < 4; i++) {
-			if ((Stream[12 + i] & csr->IPSrcAddrMask[i]) !=
-			(csr->IPSrcAddr[i] & csr->IPSrcAddrMask[i]))
+			if ((Stream[12 + i] & csr->ipsrc_addrmask[i]) !=
+			(csr->ipsrc_addr[i] & csr->ipsrc_addrmask[i]))
 				return 1;
 		}
 	}
 
-	if (csr->ClassifierRuleEnable&IPMASKEDDSTADDRESS) {
+	if (csr->classifier_rule_en&IPMASKEDDSTADDRESS) {
 		for (i = 0; i < 4; i++) {
-			if ((Stream[16 + i] & csr->IPDstAddrMask[i]) !=
-			(csr->IPDstAddr[i] & csr->IPDstAddrMask[i]))
+			if ((Stream[16 + i] & csr->ipdst_addrmask[i]) !=
+			(csr->ipdst_addr[i] & csr->ipdst_addrmask[i]))
 				return 1;
 		}
 	}
 
-	if (csr->ClassifierRuleEnable&PROTOCOLSRCPORTRANGE) {
+	if (csr->classifier_rule_en&PROTOCOLSRCPORTRANGE) {
 		i = ((port[0]<<8)&0xff00)+port[1];
-		if ((i < csr->SrcPortLow) || (i > csr->SrcPortHigh))
+		if ((i < csr->srcport_lo) || (i > csr->srcport_hi))
 			return 1;
 	}
 
-	if (csr->ClassifierRuleEnable&PROTOCOLDSTPORTRANGE) {
+	if (csr->classifier_rule_en&PROTOCOLDSTPORTRANGE) {
 		i = ((port[2]<<8)&0xff00)+port[3];
-		if ((i < csr->DstPortLow) || (i > csr->DstPortHigh))
+		if ((i < csr->dstport_lo) || (i > csr->dstport_hi))
 			return 1;
 	}
 
@@ -208,8 +208,8 @@ static u32 get_qos_index(struct nic *nic, u8 *iph, u8 *tcpudph)
 
 	if (IP_Ver == 4) {
 		for (i = 0; i < QOS_MAX; i++) {
-			if (qcb->csr[i].Enabled) {
-				if (qcb->csr[i].ClassifierRuleEnable) {
+			if (qcb->csr[i].enabled) {
+				if (qcb->csr[i].classifier_rule_en) {
 					if (chk_ipv4_rule(&qcb->csr[i], iph,
 					tcpudph) == 0)
 						return i;
@@ -230,14 +230,14 @@ static u32 extract_qos_list(struct nic *nic, struct list_head *head)
 	INIT_LIST_HEAD(head);
 
 	for (i = 0; i < QOS_MAX; i++) {
-		if (qcb->csr[i].Enabled) {
-			if (qcb->csr[i].QoSBufCount < qcb->qos_limit_size) {
+		if (qcb->csr[i].enabled) {
+			if (qcb->csr[i].qos_buf_count < qcb->qos_limit_size) {
 				if (!list_empty(&qcb->qos_list[i])) {
 					entry = list_entry(
 					qcb->qos_list[i].prev,
 					struct qos_entry_s, list);
 					list_move_tail(&entry->list, head);
-					qcb->csr[i].QoSBufCount++;
+					qcb->csr[i].qos_buf_count++;
 
 					if (!list_empty(&qcb->qos_list[i]))
 						wprintk("QoS Index(%d) is piled!!\n", i);
@@ -322,8 +322,8 @@ static u32 get_csr(struct qos_cb_s *qcb, u32 SFID, int mode)
 
 	if (mode) {
 		for (i = 0; i < QOS_MAX; i++) {
-			if (qcb->csr[i].Enabled == 0) {
-				qcb->csr[i].Enabled = 1;
+			if (qcb->csr[i].enabled == 0) {
+				qcb->csr[i].enabled = 1;
 				qcb->qos_list_cnt++;
 				return i;
 			}
@@ -365,7 +365,7 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 				eprintk("QoS ERROR: No SF\n");
 				return;
 			}
-			qcb->csr[index].QoSBufCount = buf[(i*5)+10];
+			qcb->csr[index].qos_buf_count = buf[(i*5)+10];
 		}
 
 		extract_qos_list(nic, &send_list);
@@ -391,38 +391,38 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 
 		spin_lock_irqsave(&qcb->qos_lock, flags);
 		qcb->csr[index].SFID = SFID;
-		qcb->csr[index].ClassifierRuleEnable = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].ClassifierRuleEnable += buf[pos++];
-		if (qcb->csr[index].ClassifierRuleEnable == 0)
+		qcb->csr[index].classifier_rule_en = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].classifier_rule_en += buf[pos++];
+		if (qcb->csr[index].classifier_rule_en == 0)
 			qcb->qos_null_idx = index;
-		qcb->csr[index].IPToSMask = buf[pos++];
-		qcb->csr[index].IPToSLow = buf[pos++];
-		qcb->csr[index].IPToSHigh = buf[pos++];
-		qcb->csr[index].Protocol = buf[pos++];
-		qcb->csr[index].IPSrcAddrMask[0] = buf[pos++];
-		qcb->csr[index].IPSrcAddrMask[1] = buf[pos++];
-		qcb->csr[index].IPSrcAddrMask[2] = buf[pos++];
-		qcb->csr[index].IPSrcAddrMask[3] = buf[pos++];
-		qcb->csr[index].IPSrcAddr[0] = buf[pos++];
-		qcb->csr[index].IPSrcAddr[1] = buf[pos++];
-		qcb->csr[index].IPSrcAddr[2] = buf[pos++];
-		qcb->csr[index].IPSrcAddr[3] = buf[pos++];
-		qcb->csr[index].IPDstAddrMask[0] = buf[pos++];
-		qcb->csr[index].IPDstAddrMask[1] = buf[pos++];
-		qcb->csr[index].IPDstAddrMask[2] = buf[pos++];
-		qcb->csr[index].IPDstAddrMask[3] = buf[pos++];
-		qcb->csr[index].IPDstAddr[0] = buf[pos++];
-		qcb->csr[index].IPDstAddr[1] = buf[pos++];
-		qcb->csr[index].IPDstAddr[2] = buf[pos++];
-		qcb->csr[index].IPDstAddr[3] = buf[pos++];
-		qcb->csr[index].SrcPortLow = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].SrcPortLow += buf[pos++];
-		qcb->csr[index].SrcPortHigh = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].SrcPortHigh += buf[pos++];
-		qcb->csr[index].DstPortLow = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].DstPortLow += buf[pos++];
-		qcb->csr[index].DstPortHigh = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].DstPortHigh += buf[pos++];
+		qcb->csr[index].ip2s_mask = buf[pos++];
+		qcb->csr[index].ip2s_lo = buf[pos++];
+		qcb->csr[index].ip2s_hi = buf[pos++];
+		qcb->csr[index].protocol = buf[pos++];
+		qcb->csr[index].ipsrc_addrmask[0] = buf[pos++];
+		qcb->csr[index].ipsrc_addrmask[1] = buf[pos++];
+		qcb->csr[index].ipsrc_addrmask[2] = buf[pos++];
+		qcb->csr[index].ipsrc_addrmask[3] = buf[pos++];
+		qcb->csr[index].ipsrc_addr[0] = buf[pos++];
+		qcb->csr[index].ipsrc_addr[1] = buf[pos++];
+		qcb->csr[index].ipsrc_addr[2] = buf[pos++];
+		qcb->csr[index].ipsrc_addr[3] = buf[pos++];
+		qcb->csr[index].ipdst_addrmask[0] = buf[pos++];
+		qcb->csr[index].ipdst_addrmask[1] = buf[pos++];
+		qcb->csr[index].ipdst_addrmask[2] = buf[pos++];
+		qcb->csr[index].ipdst_addrmask[3] = buf[pos++];
+		qcb->csr[index].ipdst_addr[0] = buf[pos++];
+		qcb->csr[index].ipdst_addr[1] = buf[pos++];
+		qcb->csr[index].ipdst_addr[2] = buf[pos++];
+		qcb->csr[index].ipdst_addr[3] = buf[pos++];
+		qcb->csr[index].srcport_lo = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].srcport_lo += buf[pos++];
+		qcb->csr[index].srcport_hi = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].srcport_hi += buf[pos++];
+		qcb->csr[index].dstport_lo = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].dstport_lo += buf[pos++];
+		qcb->csr[index].dstport_hi = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].dstport_hi += buf[pos++];
 
 		qcb->qos_limit_size = 254/qcb->qos_list_cnt;
 		spin_unlock_irqrestore(&qcb->qos_lock, flags);
@@ -444,7 +444,7 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 		INIT_LIST_HEAD(&free_list);
 
 		spin_lock_irqsave(&qcb->qos_lock, flags);
-		qcb->csr[index].Enabled = 0;
+		qcb->csr[index].enabled = 0;
 		qcb->qos_list_cnt--;
 		qcb->qos_limit_size = 254/qcb->qos_list_cnt;
 
diff --git a/drivers/staging/gdm72xx/gdm_qos.h b/drivers/staging/gdm72xx/gdm_qos.h
index 33f2bd4cee3..8f18119d22a 100644
--- a/drivers/staging/gdm72xx/gdm_qos.h
+++ b/drivers/staging/gdm72xx/gdm_qos.h
@@ -20,18 +20,18 @@
 
 #define BOOLEAN	u8
 
-#define QOS_MAX						16
-#define IPTYPEOFSERVICE				0x8000
-#define	PROTOCOL				0x4000
-#define	IPMASKEDSRCADDRESS			0x2000
-#define	IPMASKEDDSTADDRESS			0x1000
+#define QOS_MAX				16
+#define IPTYPEOFSERVICE			0x8000
+#define	PROTOCOL			0x4000
+#define	IPMASKEDSRCADDRESS		0x2000
+#define	IPMASKEDDSTADDRESS		0x1000
 #define	PROTOCOLSRCPORTRANGE		0x800
 #define	PROTOCOLDSTPORTRANGE		0x400
-#define	DSTMACADDR					0x200
-#define	SRCMACADDR					0x100
-#define	ETHERTYPE					0x80
+#define	DSTMACADDR			0x200
+#define	SRCMACADDR			0x100
+#define	ETHERTYPE			0x80
 #define	IEEE802_1DUSERPRIORITY		0x40
-#define	IEEE802_1QVLANID			0x10
+#define	IEEE802_1QVLANID		0x10
 
 struct gdm_wimax_csr_s {
 	/*	union{
@@ -51,28 +51,28 @@ struct gdm_wimax_csr_s {
 			Reserved:5;
 		} fields;
 	} */
-	BOOLEAN		Enabled;
-	u32			SFID;
-	u8			QoSBufCount;
-	u16		ClassifierRuleEnable;
-	u8			IPToSLow;
-	u8			IPToSHigh;
-	u8			IPToSMask;
-	u8			Protocol;
-	u8			IPSrcAddr[16];
-	u8			IPSrcAddrMask[16];
-	u8			IPDstAddr[16];
-	u8			IPDstAddrMask[16];
-	u16		SrcPortLow;
-	u16		SrcPortHigh;
-	u16		DstPortLow;
-	u16		DstPortHigh;
+	BOOLEAN		enabled;
+	u32		SFID;
+	u8		qos_buf_count;
+	u16		classifier_rule_en;
+	u8		ip2s_lo;
+	u8		ip2s_hi;
+	u8		ip2s_mask;
+	u8		protocol;
+	u8		ipsrc_addr[16];
+	u8		ipsrc_addrmask[16];
+	u8		ipdst_addr[16];
+	u8		ipdst_addrmask[16];
+	u16		srcport_lo;
+	u16		srcport_hi;
+	u16		dstport_lo;
+	u16		dstport_hi;
 };
 
 struct qos_entry_s {
-	struct list_head list;
-	struct sk_buff *skb;
-	struct net_device *dev;
+	struct list_head	list;
+	struct sk_buff		*skb;
+	struct net_device	*dev;
 
 };
 
@@ -81,7 +81,7 @@ struct qos_cb_s {
 	u32			qos_list_cnt;
 	u32			qos_null_idx;
 	struct gdm_wimax_csr_s	csr[QOS_MAX];
-	spinlock_t	qos_lock;
+	spinlock_t		qos_lock;
 	u32			qos_limit_size;
 };
 
diff --git a/drivers/staging/gdm72xx/gdm_sdio.c b/drivers/staging/gdm72xx/gdm_sdio.c
index 3e43c012ef2..ca38d719a1f 100644
--- a/drivers/staging/gdm72xx/gdm_sdio.c
+++ b/drivers/staging/gdm72xx/gdm_sdio.c
@@ -60,27 +60,20 @@ static void hexdump(char *title, u8 *data, int len)
 
 static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
 {
-	struct sdio_tx *t = NULL;
-
-	t = kmalloc(sizeof(*t), GFP_ATOMIC);
-	if (t == NULL)
-		goto out;
+	struct sdio_tx *t = kzalloc(sizeof(*t), GFP_ATOMIC);
 
-	memset(t, 0, sizeof(*t));
+	if (!t)
+		return NULL;
 
 	t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
-	if (t->buf == NULL)
-		goto out;
+	if (!t->buf) {
+		kfree(t);
+		return NULL;
+	}
 
 	t->tx_cxt = tx;
 
 	return t;
-out:
-	if (t) {
-		kfree(t->buf);
-		kfree(t);
-	}
-	return NULL;
 }
 
 static void free_tx_struct(struct sdio_tx *t)
@@ -93,20 +86,12 @@ static void free_tx_struct(struct sdio_tx *t)
 
 static struct sdio_rx *alloc_rx_struct(struct rx_cxt *rx)
 {
-	struct sdio_rx *r = NULL;
+	struct sdio_rx *r = kzalloc(sizeof(*r), GFP_ATOMIC);
 
-	r = kmalloc(sizeof(*r), GFP_ATOMIC);
-	if (r == NULL)
-		goto out;
-
-	memset(r, 0, sizeof(*r));
-
-	r->rx_cxt = rx;
+	if (r)
+		r->rx_cxt = rx;
 
 	return r;
-out:
-	kfree(r);
-	return NULL;
 }
 
 static void free_rx_struct(struct sdio_rx *r)
@@ -680,7 +665,7 @@ static int sdio_wimax_probe(struct sdio_func *func,
 	phy_dev->rcv_func = gdm_sdio_receive;
 
 	ret = init_sdio(sdev);
-	if (sdev < 0)
+	if (ret < 0)
 		goto out;
 
 	sdev->func = func;
diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
index d48d49c145e..0c9e8958009 100644
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -26,11 +26,11 @@
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-#define TX_BUF_SIZE	2048
+#define TX_BUF_SIZE		2048
 #if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
-#define RX_BUF_SIZE	(128*1024)	/* For packet aggregation */
+#define RX_BUF_SIZE		(128*1024)	/* For packet aggregation */
 #else
-#define RX_BUF_SIZE	2048
+#define RX_BUF_SIZE		2048
 #endif
 
 #define GDM7205_PADDING		256
@@ -39,7 +39,7 @@ MODULE_DEVICE_TABLE(usb, id_table);
 #define B2H(x)		__be16_to_cpu(x)
 #define DB2H(x)		__be32_to_cpu(x)
 
-#define DOWNLOAD_CONF_VALUE		0x21
+#define DOWNLOAD_CONF_VALUE	0x21
 
 #ifdef CONFIG_WIMAX_GDM72XX_K_MODE
 
@@ -48,7 +48,7 @@ static LIST_HEAD(k_list);
 static DEFINE_SPINLOCK(k_lock);
 static int k_mode_stop;
 
-#define K_WAIT_TIME	(2 * HZ / 100)
+#define K_WAIT_TIME		(2 * HZ / 100)
 
 #endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
 
@@ -73,29 +73,23 @@ static void hexdump(char *title, u8 *data, int len)
 
 static struct usb_tx *alloc_tx_struct(struct tx_cxt *tx)
 {
-	struct usb_tx *t = NULL;
+	struct usb_tx *t = kzalloc(sizeof(*t), GFP_ATOMIC);
 
-	t = kmalloc(sizeof(*t), GFP_ATOMIC);
-	if (t == NULL)
-		goto out;
-
-	memset(t, 0, sizeof(*t));
+	if (!t)
+		return NULL;
 
 	t->urb = usb_alloc_urb(0, GFP_ATOMIC);
 	t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
-	if (t->urb == NULL || t->buf == NULL)
-		goto out;
-
-	t->tx_cxt = tx;
-
-	return t;
-out:
-	if (t) {
+	if (!t->urb || !t->buf) {
 		usb_free_urb(t->urb);
 		kfree(t->buf);
 		kfree(t);
+		return NULL;
 	}
-	return NULL;
+
+	t->tx_cxt = tx;
+
+	return t;
 }
 
 static void free_tx_struct(struct usb_tx *t)
@@ -109,28 +103,22 @@ static void free_tx_struct(struct usb_tx *t)
 
 static struct usb_rx *alloc_rx_struct(struct rx_cxt *rx)
 {
-	struct usb_rx *r = NULL;
+	struct usb_rx *r = kzalloc(sizeof(*r), GFP_ATOMIC);
 
-	r = kmalloc(sizeof(*r), GFP_ATOMIC);
-	if (r == NULL)
-		goto out;
-
-	memset(r, 0, sizeof(*r));
+	if (!r)
+		return NULL;
 
 	r->urb = usb_alloc_urb(0, GFP_ATOMIC);
 	r->buf = kmalloc(RX_BUF_SIZE, GFP_ATOMIC);
-	if (r->urb == NULL || r->buf == NULL)
-		goto out;
-
-	r->rx_cxt = rx;
-	return r;
-out:
-	if (r) {
+	if (!r->urb || !r->buf) {
 		usb_free_urb(r->urb);
 		kfree(r->buf);
 		kfree(r);
+		return NULL;
 	}
-	return NULL;
+
+	r->rx_cxt = rx;
+	return r;
 }
 
 static void free_rx_struct(struct usb_rx *r)
@@ -180,8 +168,7 @@ static struct usb_rx *get_rx_struct(struct rx_cxt *rx)
 	}
 
 	r = list_entry(rx->free_list.next, struct usb_rx, list);
-	list_del(&r->list);
-	list_add_tail(&r->list, &rx->used_list);
+	list_move_tail(&r->list, &rx->used_list);
 
 	return r;
 }
@@ -189,8 +176,7 @@ static struct usb_rx *get_rx_struct(struct rx_cxt *rx)
 /* Before this function is called, spin lock should be locked. */
 static void put_rx_struct(struct rx_cxt *rx, struct usb_rx *r)
 {
-	list_del(&r->list);
-	list_add(&r->list, &rx->free_list);
+	list_move(&r->list, &rx->free_list);
 }
 
 static int init_usb(struct usbwm_dev *udev)
diff --git a/drivers/staging/gdm72xx/gdm_usb.h b/drivers/staging/gdm72xx/gdm_usb.h
index ecb891f6a59..f2c54511bb9 100644
--- a/drivers/staging/gdm72xx/gdm_usb.h
+++ b/drivers/staging/gdm72xx/gdm_usb.h
@@ -18,8 +18,8 @@
 #include <linux/usb.h>
 #include <linux/list.h>
 
-#define B_DIFF_DL_DRV		(1<<4)
-#define B_DOWNLOAD			(1 << 5)
+#define B_DIFF_DL_DRV		(1 << 4)
+#define B_DOWNLOAD		(1 << 5)
 #define MAX_NR_SDU_BUF		64
 
 struct usb_tx {
@@ -29,7 +29,7 @@ struct usb_tx {
 #endif
 	struct tx_cxt		*tx_cxt;
 
-	struct urb	*urb;
+	struct urb		*urb;
 	u8			*buf;
 
 	void (*callback)(void *cb_data);
@@ -44,14 +44,14 @@ struct tx_cxt {
 	struct list_head	pending_list;
 #endif
 
-	spinlock_t			lock;
+	spinlock_t		lock;
 };
 
 struct usb_rx {
 	struct list_head	list;
 	struct rx_cxt		*rx_cxt;
 
-	struct urb	*urb;
+	struct urb		*urb;
 	u8			*buf;
 
 	void (*callback)(void *cb_data, void *data, int len);
@@ -61,7 +61,7 @@ struct usb_rx {
 struct rx_cxt {
 	struct list_head	free_list;
 	struct list_head	used_list;
-	spinlock_t			lock;
+	spinlock_t		lock;
 };
 
 struct usbwm_dev {
@@ -76,8 +76,8 @@ struct usbwm_dev {
 	struct list_head	list;
 #endif
 
-	struct tx_cxt	tx;
-	struct rx_cxt	rx;
+	struct tx_cxt		tx;
+	struct rx_cxt		rx;
 
 	int padding;
 };
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index 0716efc1817..6cb810701a3 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -258,12 +258,16 @@ static int gdm_wimax_event_init(void)
 	if (!wm_event.ref_cnt) {
 		wm_event.sock = netlink_init(NETLINK_WIMAX,
 						gdm_wimax_event_rcv);
-		if (wm_event.sock)
-			wm_event.ref_cnt++;
-		INIT_LIST_HEAD(&wm_event.evtq);
-		INIT_LIST_HEAD(&wm_event.freeq);
-		INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
-		spin_lock_init(&wm_event.evt_lock);
+		if (wm_event.sock) {
+			INIT_LIST_HEAD(&wm_event.evtq);
+			INIT_LIST_HEAD(&wm_event.freeq);
+			INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
+			spin_lock_init(&wm_event.evt_lock);
+		}
+	}
+
+	if (wm_event.sock) {
+		wm_event.ref_cnt++;
 		return 0;
 	}
 
diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c
index 3abb31df8f2..20d0aec52e7 100644
--- a/drivers/staging/gdm72xx/netlink_k.c
+++ b/drivers/staging/gdm72xx/netlink_k.c
@@ -95,7 +95,7 @@ struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type,
 	init_MUTEX(&netlink_mutex);
 #endif
 
-	sock = netlink_kernel_create(&init_net, unit, THIS_MODULE, &cfg);
+	sock = netlink_kernel_create(&init_net, unit, &cfg);
 
 	if (sock)
 		rcv_cb = cb;
@@ -135,7 +135,7 @@ int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
 	}
 	memcpy(nlmsg_data(nlh), msg, len);
 
-	NETLINK_CB(skb).pid = 0;
+	NETLINK_CB(skb).portid = 0;
 	NETLINK_CB(skb).dst_group = 0;
 
 	ret = netlink_broadcast(sock, skb, 0, group+1, GFP_ATOMIC);
diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c
index e3dbd5a552c..0787188728a 100644
--- a/drivers/staging/gdm72xx/usb_boot.c
+++ b/drivers/staging/gdm72xx/usb_boot.c
@@ -18,25 +18,22 @@
 #include <linux/usb.h>
 #include <linux/unistd.h>
 #include <linux/slab.h>
+#include <linux/firmware.h>
 
 #include <asm/byteorder.h>
 #include "gdm_usb.h"
 #include "usb_boot.h"
 
-#define DN_KERNEL_MAGIC_NUMBER		0x10760001
-#define DN_ROOTFS_MAGIC_NUMBER		0x10760002
+#define DN_KERNEL_MAGIC_NUMBER	0x10760001
+#define DN_ROOTFS_MAGIC_NUMBER	0x10760002
 
-#define DOWNLOAD_SIZE	1024
-
-#define DH2B(x)		__cpu_to_be32(x)
-#define DL2H(x)		__le32_to_cpu(x)
-
-#define MIN(a, b)	((a) > (b) ? (b) : (a))
+#define DOWNLOAD_SIZE		1024
 
 #define MAX_IMG_CNT		16
-#define UIMG_PATH		"/lib/firmware/gdm72xx/gdmuimg.bin"
-#define KERN_PATH		"/lib/firmware/gdm72xx/zImage"
-#define FS_PATH			"/lib/firmware/gdm72xx/ramdisk.jffs2"
+#define FW_DIR			"gdm72xx/"
+#define FW_UIMG			"gdmuimg.bin"
+#define FW_KERN			"zImage"
+#define FW_FS			"ramdisk.jffs2"
 
 struct dn_header {
 	u32	magic_num;
@@ -44,23 +41,23 @@ struct dn_header {
 };
 
 struct img_header {
-	u32		magic_code;
-	u32		count;
-	u32		len;
-	u32		offset[MAX_IMG_CNT];
+	u32	magic_code;
+	u32	count;
+	u32	len;
+	u32	offset[MAX_IMG_CNT];
 	char	hostname[32];
 	char	date[32];
 };
 
 struct fw_info {
-	u32		id;
-	u32		len;
-	u32		kernel_len;
-	u32		rootfs_len;
-	u32		kernel_offset;
-	u32		rootfs_offset;
-	u32		fw_ver;
-	u32		mac_ver;
+	u32	id;
+	u32	len;
+	u32	kernel_len;
+	u32	rootfs_len;
+	u32	kernel_offset;
+	u32	rootfs_offset;
+	u32	fw_ver;
+	u32	mac_ver;
 	char	hostname[32];
 	char	userid[16];
 	char	date[32];
@@ -71,7 +68,7 @@ static void array_le32_to_cpu(u32 *arr, int num)
 {
 	int i;
 	for (i = 0; i < num; i++, arr++)
-		*arr = DL2H(*arr);
+		*arr = __le32_to_cpu(*arr);
 }
 
 static u8 *tx_buf;
@@ -107,44 +104,37 @@ static int gdm_wibro_recv(struct usb_device *usbdev, void *data, int len)
 	return 0;
 }
 
-static int download_image(struct usb_device *usbdev, struct file *filp,
-				loff_t *pos, u32 img_len, u32 magic_num)
+static int download_image(struct usb_device *usbdev,
+				const struct firmware *firm,
+				loff_t pos, u32 img_len, u32 magic_num)
 {
 	struct dn_header h;
 	int ret = 0;
 	u32 size;
-	int len, readn;
 
-	size = (img_len + DOWNLOAD_SIZE - 1) & ~(DOWNLOAD_SIZE - 1);
-	h.magic_num = DH2B(magic_num);
-	h.file_size = DH2B(size);
+	size = ALIGN(img_len, DOWNLOAD_SIZE);
+	h.magic_num = __cpu_to_be32(magic_num);
+	h.file_size = __cpu_to_be32(size);
 
 	ret = gdm_wibro_send(usbdev, &h, sizeof(h));
 	if (ret < 0)
-		goto out;
+		return ret;
 
-	readn = 0;
-	while ((len = filp->f_op->read(filp, tx_buf, DOWNLOAD_SIZE, pos))) {
+	while (img_len > 0) {
+		if (img_len > DOWNLOAD_SIZE)
+			size = DOWNLOAD_SIZE;
+		else
+			size = img_len;	/* the last chunk of data */
 
-		if (len < 0) {
-			ret = -1;
-			goto out;
-		}
-		readn += len;
+		memcpy(tx_buf, firm->data + pos, size);
+		ret = gdm_wibro_send(usbdev, tx_buf, size);
 
-		ret = gdm_wibro_send(usbdev, tx_buf, DOWNLOAD_SIZE);
 		if (ret < 0)
-			goto out;
-		if (readn >= img_len)
-			break;
-	}
+			return ret;
 
-	if (readn < img_len) {
-		printk(KERN_ERR "gdmwm: Cannot read to the requested size. "
-			"Read = %d Requested = %d\n", readn, img_len);
-		ret = -EIO;
+		img_len -= size;
+		pos += size;
 	}
-out:
 
 	return ret;
 }
@@ -152,14 +142,19 @@ out:
 int usb_boot(struct usb_device *usbdev, u16 pid)
 {
 	int i, ret = 0;
-	struct file *filp = NULL;
-	struct inode *inode = NULL;
-	static mm_segment_t fs;
 	struct img_header hdr;
 	struct fw_info fw_info;
 	loff_t pos = 0;
-	char *img_name = UIMG_PATH;
-	int len;
+	char *img_name = FW_DIR FW_UIMG;
+	const struct firmware *firm;
+
+	ret = request_firmware(&firm, img_name, &usbdev->dev);
+	if (ret < 0) {
+		printk(KERN_ERR
+		       "requesting firmware %s failed with error %d\n",
+			img_name, ret);
+		return ret;
+	}
 
 	tx_buf = kmalloc(DOWNLOAD_SIZE, GFP_KERNEL);
 	if (tx_buf == NULL) {
@@ -167,29 +162,12 @@ int usb_boot(struct usb_device *usbdev, u16 pid)
 		return -ENOMEM;
 	}
 
-	fs = get_fs();
-	set_fs(get_ds());
-
-	filp = filp_open(img_name, O_RDONLY | O_LARGEFILE, 0);
-	if (IS_ERR(filp)) {
-		printk(KERN_ERR "Can't find %s.\n", img_name);
-		ret = PTR_ERR(filp);
-		goto restore_fs;
-	}
-
-	inode = filp->f_dentry->d_inode;
-	if (!S_ISREG(inode->i_mode)) {
-		printk(KERN_ERR "Invalid file type: %s\n", img_name);
-		ret = -EINVAL;
-		goto out;
-	}
-
-	len = filp->f_op->read(filp, (u8 *)&hdr, sizeof(hdr), &pos);
-	if (len != sizeof(hdr)) {
+	if (firm->size < sizeof(hdr)) {
 		printk(KERN_ERR "gdmwm: Cannot read the image info.\n");
 		ret = -EIO;
 		goto out;
 	}
+	memcpy(&hdr, firm->data, sizeof(hdr));
 
 	array_le32_to_cpu((u32 *)&hdr, 19);
 #if 0
@@ -217,13 +195,12 @@ int usb_boot(struct usb_device *usbdev, u16 pid)
 		}
 
 		pos = hdr.offset[i];
-		len = filp->f_op->read(filp, (u8 *)&fw_info, sizeof(fw_info),
-					&pos);
-		if (len != sizeof(fw_info)) {
+		if (firm->size < sizeof(fw_info) + pos) {
 			printk(KERN_ERR "gdmwm: Cannot read the FW info.\n");
 			ret = -EIO;
 			goto out;
 		}
+		memcpy(&fw_info, firm->data + pos, sizeof(fw_info));
 
 		array_le32_to_cpu((u32 *)&fw_info, 8);
 #if 0
@@ -239,14 +216,23 @@ int usb_boot(struct usb_device *usbdev, u16 pid)
 			continue;
 
 		pos = hdr.offset[i] + fw_info.kernel_offset;
-		ret = download_image(usbdev, filp, &pos, fw_info.kernel_len,
-				DN_KERNEL_MAGIC_NUMBER);
+		if (firm->size < fw_info.kernel_len + pos) {
+			printk(KERN_ERR "gdmwm: Kernel FW is too small.\n");
+			goto out;
+		}
+
+		ret = download_image(usbdev, firm, pos,
+				fw_info.kernel_len, DN_KERNEL_MAGIC_NUMBER);
 		if (ret < 0)
 			goto out;
 		printk(KERN_INFO "GCT: Kernel download success.\n");
 
 		pos = hdr.offset[i] + fw_info.rootfs_offset;
-		ret = download_image(usbdev, filp, &pos, fw_info.rootfs_len,
+		if (firm->size < fw_info.rootfs_len + pos) {
+			printk(KERN_ERR "gdmwm: Filesystem FW is too small.\n");
+			goto out;
+		}
+		ret = download_image(usbdev, firm, pos, fw_info.rootfs_len,
 				DN_ROOTFS_MAGIC_NUMBER);
 		if (ret < 0)
 			goto out;
@@ -260,10 +246,7 @@ int usb_boot(struct usb_device *usbdev, u16 pid)
 		ret = -EINVAL;
 	}
 out:
-	filp_close(filp, NULL);
-
-restore_fs:
-	set_fs(fs);
+	release_firmware(firm);
 	kfree(tx_buf);
 	return ret;
 }
@@ -293,38 +276,27 @@ out:
 	return ret;
 }
 
-static int em_download_image(struct usb_device *usbdev, char *path,
+static int em_download_image(struct usb_device *usbdev, const char *img_name,
 				char *type_string)
 {
-	struct file *filp;
-	struct inode *inode;
-	static mm_segment_t fs;
 	char *buf = NULL;
 	loff_t pos = 0;
 	int ret = 0;
-	int len, readn = 0;
+	int len;
+	int img_len;
+	const struct firmware *firm;
 	#if defined(GDM7205_PADDING)
 	const int pad_size = GDM7205_PADDING;
 	#else
 	const int pad_size = 0;
 	#endif
 
-	fs = get_fs();
-	set_fs(get_ds());
-
-	filp = filp_open(path, O_RDONLY | O_LARGEFILE, 0);
-	if (IS_ERR(filp)) {
-		printk(KERN_ERR "Can't find %s.\n", path);
-		set_fs(fs);
-		ret = -ENOENT;
-		goto restore_fs;
-	}
-
-	inode = filp->f_dentry->d_inode;
-	if (!S_ISREG(inode->i_mode)) {
-		printk(KERN_ERR "Invalid file type: %s\n", path);
-		ret = -EINVAL;
-		goto out;
+	ret = request_firmware(&firm, img_name, &usbdev->dev);
+	if (ret < 0) {
+		printk(KERN_ERR
+		       "requesting firmware %s failed with error %d\n",
+			img_name, ret);
+		return ret;
 	}
 
 	buf = kmalloc(DOWNLOAD_CHUCK + pad_size, GFP_KERNEL);
@@ -338,18 +310,28 @@ static int em_download_image(struct usb_device *usbdev, char *path,
 	if (ret < 0)
 		goto out;
 
-	while ((len = filp->f_op->read(filp, buf+pad_size, DOWNLOAD_CHUCK,
-					&pos))) {
-		if (len < 0) {
-			ret = -1;
-			goto out;
-		}
-		readn += len;
+	img_len = firm->size;
+
+	if (img_len <= 0) {
+		ret = -1;
+		goto out;
+	}
 
+	while (img_len > 0) {
+		if (img_len > DOWNLOAD_CHUCK)
+			len = DOWNLOAD_CHUCK;
+		else
+			len = img_len; /* the last chunk of data */
+
+		memcpy(buf+pad_size, firm->data + pos, len);
 		ret = gdm_wibro_send(usbdev, buf, len+pad_size);
+
 		if (ret < 0)
 			goto out;
 
+		img_len -= DOWNLOAD_CHUCK;
+		pos += DOWNLOAD_CHUCK;
+
 		ret = em_wait_ack(usbdev, ((len+pad_size) % 512 == 0));
 		if (ret < 0)
 			goto out;
@@ -360,11 +342,7 @@ static int em_download_image(struct usb_device *usbdev, char *path,
 		goto out;
 
 out:
-	filp_close(filp, NULL);
-
-restore_fs:
-	set_fs(fs);
-
+	release_firmware(firm);
 	kfree(buf);
 
 	return ret;
@@ -382,18 +360,20 @@ static int em_fw_reset(struct usb_device *usbdev)
 int usb_emergency(struct usb_device *usbdev)
 {
 	int ret;
+	const char *kern_name = FW_DIR FW_KERN;
+	const char *fs_name = FW_DIR FW_FS;
 
-	ret = em_download_image(usbdev, KERN_PATH, KERNEL_TYPE_STRING);
+	ret = em_download_image(usbdev, kern_name, KERNEL_TYPE_STRING);
 	if (ret < 0)
-		goto out;
+		return ret;
 	printk(KERN_INFO "GCT Emergency: Kernel download success.\n");
 
-	ret = em_download_image(usbdev, FS_PATH, FS_TYPE_STRING);
+	ret = em_download_image(usbdev, fs_name, FS_TYPE_STRING);
 	if (ret < 0)
-		goto out;
+		return ret;
 	printk(KERN_INFO "GCT Emergency: Filesystem download success.\n");
 
 	ret = em_fw_reset(usbdev);
-out:
+
 	return ret;
 }
diff --git a/drivers/staging/iio/Documentation/generic_buffer.c b/drivers/staging/iio/Documentation/generic_buffer.c
index 827e92de8e3..40d0ecac047 100644
--- a/drivers/staging/iio/Documentation/generic_buffer.c
+++ b/drivers/staging/iio/Documentation/generic_buffer.c
@@ -104,6 +104,16 @@ void process_scan(char *data,
 			print2byte(*(uint16_t *)(data + channels[k].location),
 				   &channels[k]);
 			break;
+		case 4:
+			if (!channels[k].is_signed) {
+				uint32_t val = *(uint32_t *)
+					(data + channels[k].location);
+				printf("%05f ", ((float)val +
+						 channels[k].offset)*
+				       channels[k].scale);
+
+			}
+			break;
 		case 8:
 			if (channels[k].is_signed) {
 				int64_t val = *(int64_t *)
diff --git a/drivers/staging/iio/Documentation/inkernel.txt b/drivers/staging/iio/Documentation/inkernel.txt
index a05823e955d..ab528409bba 100644
--- a/drivers/staging/iio/Documentation/inkernel.txt
+++ b/drivers/staging/iio/Documentation/inkernel.txt
@@ -48,11 +48,11 @@ There are then a number of functions that can be used to get information
 about this channel such as it's current reading.
 
 e.g.
-iio_st_read_channel_raw() - get a reading
-iio_st_read_channel_type() - get the type of channel
+iio_read_channel_raw() - get a reading
+iio_get_channel_type() - get the type of channel
 
 There is also provision for retrieving all of the channels associated
 with a given consumer.  This is useful for generic drivers such as
 iio_hwmon where the number and naming of channels is not known by the
-consumer driver.  To do this, use iio_st_channel_get_all.
+consumer driver.  To do this, use iio_channel_get_all.
 
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index 04cd6ec1f70..ca56c75a35f 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -1,5 +1,5 @@
 #
-# Industrial I/O subsytem configuration
+# Industrial I/O subsystem configuration
 #
 menu "IIO staging drivers"
 	depends on IIO
diff --git a/drivers/staging/iio/TODO b/drivers/staging/iio/TODO
index cf3f9489b9d..04c23262f8e 100644
--- a/drivers/staging/iio/TODO
+++ b/drivers/staging/iio/TODO
@@ -69,5 +69,5 @@ Documentation
 1) Lots of cleanup and expansion.
 2) Some device require individual docs.
 
-Contact: Jonathan Cameron <jic23@cam.ac.uk>.
+Contact: Jonathan Cameron <jic23@kernel.org>.
 Mailing list: linux-iio@vger.kernel.org
diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c
index 204106b72d2..8e37d6e0427 100644
--- a/drivers/staging/iio/accel/adis16201_core.c
+++ b/drivers/staging/iio/accel/adis16201_core.c
@@ -390,7 +390,7 @@ static int adis16201_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
-static struct iio_chan_spec adis16201_channels[] = {
+static const struct iio_chan_spec adis16201_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -565,7 +565,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16201_remove(struct spi_device *spi)
+static int __devexit adis16201_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
diff --git a/drivers/staging/iio/accel/adis16201_ring.c b/drivers/staging/iio/accel/adis16201_ring.c
index 03fcf6e319d..97c09f0c26a 100644
--- a/drivers/staging/iio/accel/adis16201_ring.c
+++ b/drivers/staging/iio/accel/adis16201_ring.c
@@ -62,7 +62,6 @@ static irqreturn_t adis16201_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16201_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 
 	int i = 0;
 	s16 *data;
@@ -83,7 +82,7 @@ static irqreturn_t adis16201_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
 
-	ring->access->store_to(ring, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c
index 22085e9dfd1..002fa9dfc37 100644
--- a/drivers/staging/iio/accel/adis16203_core.c
+++ b/drivers/staging/iio/accel/adis16203_core.c
@@ -355,7 +355,7 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
 	}
 }
 
-static struct iio_chan_spec adis16203_channels[] = {
+static const struct iio_chan_spec adis16203_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -500,7 +500,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16203_remove(struct spi_device *spi)
+static int __devexit adis16203_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
diff --git a/drivers/staging/iio/accel/adis16203_ring.c b/drivers/staging/iio/accel/adis16203_ring.c
index c16b2b7323a..7507e1a0459 100644
--- a/drivers/staging/iio/accel/adis16203_ring.c
+++ b/drivers/staging/iio/accel/adis16203_ring.c
@@ -61,7 +61,6 @@ static irqreturn_t adis16203_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16203_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 
 	int i = 0;
 	s16 *data;
@@ -82,9 +81,7 @@ static irqreturn_t adis16203_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
 
-	ring->access->store_to(ring,
-			      (u8 *)data,
-			      pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c
index 5f2e5f11c54..05bdb7c2c8e 100644
--- a/drivers/staging/iio/accel/adis16204_core.c
+++ b/drivers/staging/iio/accel/adis16204_core.c
@@ -397,7 +397,7 @@ static int adis16204_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
-static struct iio_chan_spec adis16204_channels[] = {
+static const struct iio_chan_spec adis16204_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1, /* Note was not previously indexed */
@@ -558,7 +558,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16204_remove(struct spi_device *spi)
+static int __devexit adis16204_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
diff --git a/drivers/staging/iio/accel/adis16204_ring.c b/drivers/staging/iio/accel/adis16204_ring.c
index 1d2b31cc849..4c976bec986 100644
--- a/drivers/staging/iio/accel/adis16204_ring.c
+++ b/drivers/staging/iio/accel/adis16204_ring.c
@@ -59,7 +59,6 @@ static irqreturn_t adis16204_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16204_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 	int i = 0;
 	s16 *data;
 
@@ -79,7 +78,7 @@ static irqreturn_t adis16204_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
 
-	ring->access->store_to(ring, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c
index 494570508c3..b7333bfe0b2 100644
--- a/drivers/staging/iio/accel/adis16209_core.c
+++ b/drivers/staging/iio/accel/adis16209_core.c
@@ -390,7 +390,7 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
-static struct iio_chan_spec adis16209_channels[] = {
+static const struct iio_chan_spec adis16209_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -573,7 +573,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16209_remove(struct spi_device *spi)
+static int __devexit adis16209_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
diff --git a/drivers/staging/iio/accel/adis16209_ring.c b/drivers/staging/iio/accel/adis16209_ring.c
index 1a4a55c27c7..f939e29d6c8 100644
--- a/drivers/staging/iio/accel/adis16209_ring.c
+++ b/drivers/staging/iio/accel/adis16209_ring.c
@@ -59,7 +59,6 @@ static irqreturn_t adis16209_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16209_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 	int i = 0;
 	s16 *data;
 
@@ -79,7 +78,7 @@ static irqreturn_t adis16209_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
 
-	ring->access->store_to(ring, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
index 575f1af25d5..c755089c711 100644
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ b/drivers/staging/iio/accel/adis16220_core.c
@@ -372,8 +372,7 @@ static ssize_t adis16220_accel_bin_read(struct file *filp, struct kobject *kobj,
 					loff_t off,
 					size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
 
 	return adis16220_capture_buffer_read(indio_dev, buf,
 					off, count,
@@ -394,8 +393,7 @@ static ssize_t adis16220_adc1_bin_read(struct file *filp, struct kobject *kobj,
 				char *buf, loff_t off,
 				size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
 
 	return adis16220_capture_buffer_read(indio_dev, buf,
 					off, count,
@@ -416,8 +414,7 @@ static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj,
 				char *buf, loff_t off,
 				size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
 
 	return adis16220_capture_buffer_read(indio_dev, buf,
 					off, count,
@@ -666,7 +663,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16220_remove(struct spi_device *spi)
+static int __devexit adis16220_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c
index b30b7874ffb..0fc26a49d68 100644
--- a/drivers/staging/iio/accel/adis16240_core.c
+++ b/drivers/staging/iio/accel/adis16240_core.c
@@ -448,7 +448,7 @@ static int adis16240_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
-static struct iio_chan_spec adis16240_channels[] = {
+static const struct iio_chan_spec adis16240_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -619,7 +619,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16240_remove(struct spi_device *spi)
+static int __devexit adis16240_remove(struct spi_device *spi)
 {
 
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
diff --git a/drivers/staging/iio/accel/adis16240_ring.c b/drivers/staging/iio/accel/adis16240_ring.c
index 360dfed6d4d..caff8e25e0a 100644
--- a/drivers/staging/iio/accel/adis16240_ring.c
+++ b/drivers/staging/iio/accel/adis16240_ring.c
@@ -56,7 +56,6 @@ static irqreturn_t adis16240_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16240_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 
 	int i = 0;
 	s16 *data;
@@ -77,7 +76,7 @@ static irqreturn_t adis16240_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
 
-	ring->access->store_to(ring, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/accel/kxsd9.c b/drivers/staging/iio/accel/kxsd9.c
index 8cf7cd943c9..fdd5fbded66 100644
--- a/drivers/staging/iio/accel/kxsd9.c
+++ b/drivers/staging/iio/accel/kxsd9.c
@@ -2,7 +2,7 @@
  * kxsd9.c	simple support for the Kionix KXSD9 3D
  *		accelerometer.
  *
- * Copyright (c) 2008-2009 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2008-2009 Jonathan Cameron <jic23@kernel.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -186,7 +186,7 @@ error_ret:
 		.address = KXSD9_REG_##axis,				\
 	}
 
-static struct iio_chan_spec kxsd9_channels[] = {
+static const struct iio_chan_spec kxsd9_channels[] = {
 	KXSD9_ACCEL_CHAN(X), KXSD9_ACCEL_CHAN(Y), KXSD9_ACCEL_CHAN(Z),
 	{
 		.type = IIO_VOLTAGE,
@@ -286,6 +286,6 @@ static struct spi_driver kxsd9_driver = {
 };
 module_spi_driver(kxsd9_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("Kionix KXSD9 SPI driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/accel/lis3l02dq.h b/drivers/staging/iio/accel/lis3l02dq.h
index ae5f225b4bb..f9bcd41f718 100644
--- a/drivers/staging/iio/accel/lis3l02dq.h
+++ b/drivers/staging/iio/accel/lis3l02dq.h
@@ -2,7 +2,7 @@
  * LISL02DQ.h -- support STMicroelectronics LISD02DQ
  *               3d 2g Linear Accelerometers via SPI
  *
- * Copyright (c) 2007 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
  *
  * Loosely based upon tle62x0.c
  *
@@ -28,7 +28,7 @@
 /* Control Register (1 of 2) */
 #define LIS3L02DQ_REG_CTRL_1_ADDR		0x20
 /* Power ctrl - either bit set corresponds to on*/
-#define LIS3L02DQ_REG_CTRL_1_PD_ON	0xC0
+#define LIS3L02DQ_REG_CTRL_1_PD_ON		0xC0
 
 /* Decimation Factor  */
 #define LIS3L02DQ_DEC_MASK			0x30
@@ -73,14 +73,14 @@
 /* Interrupt related stuff */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_ADDR			0x23
 
-/* Switch from or combination fo conditions to and */
+/* Switch from or combination of conditions to and */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_BOOLEAN_AND		0x80
 
 /* Latch interrupt request,
  * if on ack must be given by reading the ack register */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_LATCH_SRC		0x40
 
-/* Z Interrupt on High (above threshold)*/
+/* Z Interrupt on High (above threshold) */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Z_HIGH	0x20
 /* Z Interrupt on Low */
 #define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Z_LOW	0x10
@@ -117,13 +117,13 @@
 #define LIS3L02DQ_REG_STATUS_Y_OVERRUN			0x20
 #define LIS3L02DQ_REG_STATUS_X_OVERRUN			0x10
 /* XYZ new data available - first is all 3 available? */
-#define LIS3L02DQ_REG_STATUS_XYZ_NEW_DATA 0x08
+#define LIS3L02DQ_REG_STATUS_XYZ_NEW_DATA		0x08
 #define LIS3L02DQ_REG_STATUS_Z_NEW_DATA			0x04
 #define LIS3L02DQ_REG_STATUS_Y_NEW_DATA			0x02
 #define LIS3L02DQ_REG_STATUS_X_NEW_DATA			0x01
 
 /* The accelerometer readings - low and high bytes.
-Form of high byte dependent on justification set in ctrl reg */
+ * Form of high byte dependent on justification set in ctrl reg */
 #define LIS3L02DQ_REG_OUT_X_L_ADDR			0x28
 #define LIS3L02DQ_REG_OUT_X_H_ADDR			0x29
 #define LIS3L02DQ_REG_OUT_Y_L_ADDR			0x2A
@@ -150,9 +150,9 @@ Form of high byte dependent on justification set in ctrl reg */
  * struct lis3l02dq_state - device instance specific data
  * @us:			actual spi_device
  * @trig:		data ready trigger registered with iio
+ * @buf_lock:		mutex to protect tx and rx
  * @tx:			transmit buffer
  * @rx:			receive buffer
- * @buf_lock:		mutex to protect tx and rx
  **/
 struct lis3l02dq_state {
 	struct spi_device		*us;
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 9d263484fb8..21b0469f8bc 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -2,7 +2,7 @@
  * lis3l02dq.c	support STMicroelectronics LISD02DQ
  *		3d 2g Linear Accelerometers via SPI
  *
- * Copyright (c) 2007 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -392,7 +392,7 @@ static int lis3l02dq_initial_setup(struct iio_dev *indio_dev)
 		dev_err(&st->us->dev, "problem with setup control register 1");
 		goto err_ret;
 	}
-	/* Repeat as sometimes doesn't work first time?*/
+	/* Repeat as sometimes doesn't work first time? */
 	ret = lis3l02dq_spi_write_reg_8(indio_dev,
 					LIS3L02DQ_REG_CTRL_1_ADDR,
 					val);
@@ -538,7 +538,7 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
 		.event_mask = LIS3L02DQ_EVENT_MASK,		\
 	 }
 
-static struct iio_chan_spec lis3l02dq_channels[] = {
+static const struct iio_chan_spec lis3l02dq_channels[] = {
 	LIS3L02DQ_CHAN(0, IIO_MOD_X),
 	LIS3L02DQ_CHAN(1, IIO_MOD_Y),
 	LIS3L02DQ_CHAN(2, IIO_MOD_Z),
@@ -686,7 +686,7 @@ static int __devinit lis3l02dq_probe(struct spi_device *spi)
 		goto error_ret;
 	}
 	st = iio_priv(indio_dev);
-	/* this is only used tor removal purposes */
+	/* this is only used for removal purposes */
 	spi_set_drvdata(spi, indio_dev);
 
 	st->us = spi;
@@ -780,21 +780,15 @@ err_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int lis3l02dq_remove(struct spi_device *spi)
+static int __devexit lis3l02dq_remove(struct spi_device *spi)
 {
-	int ret;
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
 
-	ret = lis3l02dq_disable_all_events(indio_dev);
-	if (ret)
-		goto err_ret;
-
-	ret = lis3l02dq_stop_device(indio_dev);
-	if (ret)
-		goto err_ret;
+	lis3l02dq_disable_all_events(indio_dev);
+	lis3l02dq_stop_device(indio_dev);
 
 	if (spi->irq && gpio_is_valid(irq_to_gpio(spi->irq)) > 0)
 		free_irq(st->us->irq, indio_dev);
@@ -804,8 +798,8 @@ static int lis3l02dq_remove(struct spi_device *spi)
 	lis3l02dq_unconfigure_buffer(indio_dev);
 
 	iio_device_free(indio_dev);
-err_ret:
-	return ret;
+
+	return 0;
 }
 
 static struct spi_driver lis3l02dq_driver = {
@@ -818,7 +812,7 @@ static struct spi_driver lis3l02dq_driver = {
 };
 module_spi_driver(lis3l02dq_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("ST LIS3L02DQ Accelerometer SPI driver");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("spi:lis3l02dq");
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 18d108fd967..fa4190d9624 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -14,7 +14,7 @@
 #include "lis3l02dq.h"
 
 /**
- * combine_8_to_16() utility function to munge to u8s into u16
+ * combine_8_to_16() utility function to munge two u8s into u16
  **/
 static inline u16 combine_8_to_16(u8 lower, u8 upper)
 {
@@ -49,7 +49,7 @@ static const u8 read_all_tx_array[] = {
 
 /**
  * lis3l02dq_read_all() Reads all channels currently selected
- * @st:		device specific state
+ * @indio_dev:	IIO device state
  * @rx_array:	(dma capable) receive array, must be at least
  *		4*number of channels
  **/
@@ -121,8 +121,10 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
 	if (rx_array == NULL)
 		return -ENOMEM;
 	ret = lis3l02dq_read_all(indio_dev, rx_array);
-	if (ret < 0)
+	if (ret < 0) {
+		kfree(rx_array);
 		return ret;
+	}
 	for (i = 0; i < scan_count; i++)
 		data[i] = combine_8_to_16(rx_array[i*4+1],
 					rx_array[i*4+3]);
@@ -135,7 +137,6 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
-	struct iio_buffer *buffer = indio_dev->buffer;
 	int len = 0;
 	char *data;
 
@@ -153,7 +154,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
 			= pf->timestamp;
-	buffer->access->store_to(buffer, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
@@ -170,22 +171,22 @@ __lis3l02dq_write_data_ready_config(struct iio_dev *indio_dev, bool state)
 	bool currentlyset;
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
 
-/* Get the current event mask register */
+	/* Get the current event mask register */
 	ret = lis3l02dq_spi_read_reg_8(indio_dev,
 				       LIS3L02DQ_REG_CTRL_2_ADDR,
 				       &valold);
 	if (ret)
 		goto error_ret;
-/* Find out if data ready is already on */
+	/* Find out if data ready is already on */
 	currentlyset
 		= valold & LIS3L02DQ_REG_CTRL_2_ENABLE_DATA_READY_GENERATION;
 
-/* Disable requested */
+	/* Disable requested */
 	if (!state && currentlyset) {
-		/* disable the data ready signal */
+		/* Disable the data ready signal */
 		valold &= ~LIS3L02DQ_REG_CTRL_2_ENABLE_DATA_READY_GENERATION;
 
-		/* The double write is to overcome a hardware bug?*/
+		/* The double write is to overcome a hardware bug? */
 		ret = lis3l02dq_spi_write_reg_8(indio_dev,
 						LIS3L02DQ_REG_CTRL_2_ADDR,
 						valold);
@@ -197,10 +198,10 @@ __lis3l02dq_write_data_ready_config(struct iio_dev *indio_dev, bool state)
 		if (ret)
 			goto error_ret;
 		st->trigger_on = false;
-/* Enable requested */
+	/* Enable requested */
 	} else if (state && !currentlyset) {
-		/* if not set, enable requested */
-		/* first disable all events */
+		/* If not set, enable requested
+		 * first disable all events */
 		ret = lis3l02dq_disable_all_events(indio_dev);
 		if (ret < 0)
 			goto error_ret;
@@ -239,7 +240,7 @@ static int lis3l02dq_data_rdy_trigger_set_state(struct iio_trigger *trig,
 	if (state == false) {
 		/*
 		 * A possible quirk with the handler is currently worked around
-		 *  by ensuring outstanding read events are cleared.
+		 * by ensuring outstanding read events are cleared.
 		 */
 		ret = lis3l02dq_read_all(indio_dev, NULL);
 	}
@@ -250,7 +251,7 @@ static int lis3l02dq_data_rdy_trigger_set_state(struct iio_trigger *trig,
 }
 
 /**
- * lis3l02dq_trig_try_reen() try renabling irq for data rdy trigger
+ * lis3l02dq_trig_try_reen() try reenabling irq for data rdy trigger
  * @trig:	the datardy trigger
  */
 static int lis3l02dq_trig_try_reen(struct iio_trigger *trig)
@@ -259,8 +260,8 @@ static int lis3l02dq_trig_try_reen(struct iio_trigger *trig)
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
 	int i;
 
-	/* If gpio still high (or high again) */
-	/* In theory possible we will need to do this several times */
+	/* If gpio still high (or high again)
+	 * In theory possible we will need to do this several times */
 	for (i = 0; i < 5; i++)
 		if (gpio_get_value(irq_to_gpio(st->us->irq)))
 			lis3l02dq_read_all(indio_dev, NULL);
diff --git a/drivers/staging/iio/accel/sca3000.h b/drivers/staging/iio/accel/sca3000.h
index 131daac9001..c1016c510da 100644
--- a/drivers/staging/iio/accel/sca3000.h
+++ b/drivers/staging/iio/accel/sca3000.h
@@ -2,7 +2,7 @@
  * sca3000.c -- support VTI sca3000 series accelerometers
  *              via SPI
  *
- * Copyright (c) 2007 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
  *
  * Partly based upon tle62x0.c
  *
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index c218d71abf1..ffd1697a9db 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -5,7 +5,7 @@
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  *
- * Copyright (c) 2009 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
  *
  * See industrialio/accels/sca3000.h for comments.
  */
@@ -450,7 +450,7 @@ static IIO_DEVICE_ATTR(revision, S_IRUGO, sca3000_show_rev, NULL, 0);
 		.event_mask = SCA3000_EVENT_MASK,		\
 	 }
 
-static struct iio_chan_spec sca3000_channels[] = {
+static const struct iio_chan_spec sca3000_channels[] = {
 	SCA3000_CHAN(0, IIO_MOD_X),
 	SCA3000_CHAN(1, IIO_MOD_Y),
 	SCA3000_CHAN(2, IIO_MOD_Z),
@@ -1233,15 +1233,13 @@ error_ret:
 	return ret;
 }
 
-static int sca3000_remove(struct spi_device *spi)
+static int __devexit sca3000_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret;
+
 	/* Must ensure no interrupts can be generated after this!*/
-	ret = sca3000_stop_all_interrupts(st);
-	if (ret)
-		return ret;
+	sca3000_stop_all_interrupts(st);
 	if (spi->irq)
 		free_irq(spi->irq, indio_dev);
 	iio_device_unregister(indio_dev);
@@ -1272,6 +1270,6 @@ static struct spi_driver sca3000_driver = {
 };
 module_spi_driver(sca3000_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("VTI SCA3000 Series Accelerometers SPI driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index b7e1a002630..cbec2f1665e 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -5,7 +5,7 @@
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  *
- * Copyright (c) 2009 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
  *
  */
 
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index 67711b7d718..a525143ecbe 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -68,20 +68,6 @@ config AD799X_RING_BUFFER
 	  Say yes here to include ring buffer support in the AD799X
 	  ADC driver.
 
-config AD7476
-	tristate "Analog Devices AD7475/6/7/8 AD7466/7/8 and AD7495 ADC driver"
-	depends on SPI
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
-	help
-	  Say yes here to build support for Analog Devices
-	  AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495
-	  SPI analog to digital converters (ADC).
-	  If unsure, say N (but it's safe to say "Y").
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7476.
-
 config AD7887
 	tristate "Analog Devices AD7887 ADC driver"
 	depends on SPI
@@ -96,11 +82,12 @@ config AD7887
 	  module will be called ad7887.
 
 config AD7780
-	tristate "Analog Devices AD7780 AD7781 ADC driver"
+	tristate "Analog Devices AD7780 and similar ADCs driver"
 	depends on SPI
 	depends on GPIOLIB
+	select AD_SIGMA_DELTA
 	help
-	  Say yes here to build support for Analog Devices
+	  Say yes here to build support for Analog Devices AD7170, AD7171,
 	  AD7780 and AD7781 SPI analog to digital converters (ADC).
 	  If unsure, say N (but it's safe to say "Y").
 
@@ -108,13 +95,12 @@ config AD7780
 	  module will be called ad7780.
 
 config AD7793
-	tristate "Analog Devices AD7792 AD7793 ADC driver"
+	tristate "Analog Devices AD7793 and similar ADCs driver"
 	depends on SPI
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
+	select AD_SIGMA_DELTA
 	help
-	  Say yes here to build support for Analog Devices
-	  AD7792 and AD7793 SPI analog to digital converters (ADC).
+	  Say yes here to build support for Analog Devices AD7785, AD7792, AD7793,
+	  AD7794 and AD7795 SPI analog to digital converters (ADC).
 	  If unsure, say N (but it's safe to say "Y").
 
 	  To compile this driver as a module, choose M here: the
@@ -131,8 +117,7 @@ config AD7816
 config AD7192
 	tristate "Analog Devices AD7190 AD7192 AD7195 ADC driver"
 	depends on SPI
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
+	select AD_SIGMA_DELTA
 	help
 	  Say yes here to build support for Analog Devices AD7190,
 	  AD7192 or AD7195 SPI analog to digital converters (ADC).
@@ -200,6 +185,18 @@ config LPC32XX_ADC
 	  activate only one via device tree selection.  Provides direct access
 	  via sysfs.
 
+config MXS_LRADC
+	tristate "Freescale i.MX28 LRADC"
+	depends on ARCH_MXS
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  Say yes here to build support for i.MX28 LRADC convertor
+	  built into these chips.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mxs-lradc.
+
 config SPEAR_ADC
 	tristate "ST SPEAr ADC"
 	depends on PLAT_SPEAR
diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile
index 14e98b62b70..62ee02e80cf 100644
--- a/drivers/staging/iio/adc/Makefile
+++ b/drivers/staging/iio/adc/Makefile
@@ -17,10 +17,6 @@ ad799x-y := ad799x_core.o
 ad799x-$(CONFIG_AD799X_RING_BUFFER) += ad799x_ring.o
 obj-$(CONFIG_AD799X) += ad799x.o
 
-ad7476-y := ad7476_core.o
-ad7476-$(CONFIG_IIO_BUFFER) += ad7476_ring.o
-obj-$(CONFIG_AD7476) += ad7476.o
-
 ad7887-y := ad7887_core.o
 ad7887-$(CONFIG_IIO_BUFFER) += ad7887_ring.o
 obj-$(CONFIG_AD7887) += ad7887.o
@@ -38,4 +34,5 @@ obj-$(CONFIG_ADT7310) += adt7310.o
 obj-$(CONFIG_ADT7410) += adt7410.o
 obj-$(CONFIG_AD7280) += ad7280a.o
 obj-$(CONFIG_LPC32XX_ADC) += lpc32xx_adc.o
+obj-$(CONFIG_MXS_LRADC) += mxs-lradc.o
 obj-$(CONFIG_SPEAR_ADC) += spear_adc.o
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 22c3923d55e..aeaa61d49f5 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -23,6 +23,7 @@
 #include <linux/iio/trigger.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
+#include <linux/iio/adc/ad_sigma_delta.h>
 
 #include "ad7192.h"
 
@@ -57,6 +58,7 @@
 
 /* Mode Register Bit Designations (AD7192_REG_MODE) */
 #define AD7192_MODE_SEL(x)	(((x) & 0x7) << 21) /* Operation Mode Select */
+#define AD7192_MODE_SEL_MASK	(0x7 << 21) /* Operation Mode Select Mask */
 #define AD7192_MODE_DAT_STA	(1 << 20) /* Status Register transmission */
 #define AD7192_MODE_CLKSRC(x)	(((x) & 0x3) << 18) /* Clock Source Select */
 #define AD7192_MODE_SINC3	(1 << 15) /* SINC3 Filter Select */
@@ -91,7 +93,8 @@
 
 #define AD7192_CONF_CHOP	(1 << 23) /* CHOP enable */
 #define AD7192_CONF_REFSEL	(1 << 20) /* REFIN1/REFIN2 Reference Select */
-#define AD7192_CONF_CHAN(x)	(((x) & 0xFF) << 8) /* Channel select */
+#define AD7192_CONF_CHAN(x)	(((1 << (x)) & 0xFF) << 8) /* Channel select */
+#define AD7192_CONF_CHAN_MASK	(0xFF << 8) /* Channel select mask */
 #define AD7192_CONF_BURN	(1 << 7) /* Burnout current enable */
 #define AD7192_CONF_REFDET	(1 << 6) /* Reference detect enable */
 #define AD7192_CONF_BUF		(1 << 4) /* Buffered Mode Enable */
@@ -133,13 +136,7 @@
  */
 
 struct ad7192_state {
-	struct spi_device		*spi;
-	struct iio_trigger		*trig;
 	struct regulator		*reg;
-	struct ad7192_platform_data	*pdata;
-	wait_queue_head_t		wq_data_avail;
-	bool				done;
-	bool				irq_dis;
 	u16				int_vref_mv;
 	u32				mclk;
 	u32				f_order;
@@ -148,178 +145,45 @@ struct ad7192_state {
 	u32				scale_avail[8][2];
 	u8				gpocon;
 	u8				devid;
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	u8				data[4] ____cacheline_aligned;
-};
 
-static int __ad7192_write_reg(struct ad7192_state *st, bool locked,
-			      bool cs_change, unsigned char reg,
-			      unsigned size, unsigned val)
-{
-	u8 *data = st->data;
-	struct spi_transfer t = {
-		.tx_buf		= data,
-		.len		= size + 1,
-		.cs_change	= cs_change,
-	};
-	struct spi_message m;
-
-	data[0] = AD7192_COMM_WRITE | AD7192_COMM_ADDR(reg);
-
-	switch (size) {
-	case 3:
-		data[1] = val >> 16;
-		data[2] = val >> 8;
-		data[3] = val;
-		break;
-	case 2:
-		data[1] = val >> 8;
-		data[2] = val;
-		break;
-	case 1:
-		data[1] = val;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t, &m);
-
-	if (locked)
-		return spi_sync_locked(st->spi, &m);
-	else
-		return spi_sync(st->spi, &m);
-}
+	struct ad_sigma_delta		sd;
+};
 
-static int ad7192_write_reg(struct ad7192_state *st,
-			    unsigned reg, unsigned size, unsigned val)
+static struct ad7192_state *ad_sigma_delta_to_ad7192(struct ad_sigma_delta *sd)
 {
-	return __ad7192_write_reg(st, false, false, reg, size, val);
+	return container_of(sd, struct ad7192_state, sd);
 }
 
-static int __ad7192_read_reg(struct ad7192_state *st, bool locked,
-			     bool cs_change, unsigned char reg,
-			     int *val, unsigned size)
+static int ad7192_set_channel(struct ad_sigma_delta *sd, unsigned int channel)
 {
-	u8 *data = st->data;
-	int ret;
-	struct spi_transfer t[] = {
-		{
-			.tx_buf = data,
-			.len = 1,
-		}, {
-			.rx_buf = data,
-			.len = size,
-			.cs_change = cs_change,
-		},
-	};
-	struct spi_message m;
-
-	data[0] = AD7192_COMM_READ | AD7192_COMM_ADDR(reg);
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-
-	if (locked)
-		ret = spi_sync_locked(st->spi, &m);
-	else
-		ret = spi_sync(st->spi, &m);
-
-	if (ret < 0)
-		return ret;
-
-	switch (size) {
-	case 3:
-		*val = data[0] << 16 | data[1] << 8 | data[2];
-		break;
-	case 2:
-		*val = data[0] << 8 | data[1];
-		break;
-	case 1:
-		*val = data[0];
-		break;
-	default:
-		return -EINVAL;
-	}
+	struct ad7192_state *st = ad_sigma_delta_to_ad7192(sd);
 
-	return 0;
-}
+	st->conf &= ~AD7192_CONF_CHAN_MASK;
+	st->conf |= AD7192_CONF_CHAN(channel);
 
-static int ad7192_read_reg(struct ad7192_state *st,
-			   unsigned reg, int *val, unsigned size)
-{
-	return __ad7192_read_reg(st, 0, 0, reg, val, size);
+	return ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, st->conf);
 }
 
-static int ad7192_read(struct ad7192_state *st, unsigned ch,
-		       unsigned len, int *val)
+static int ad7192_set_mode(struct ad_sigma_delta *sd,
+			   enum ad_sigma_delta_mode mode)
 {
-	int ret;
-	st->conf = (st->conf & ~AD7192_CONF_CHAN(-1)) |
-		AD7192_CONF_CHAN(1 << ch);
-	st->mode = (st->mode & ~AD7192_MODE_SEL(-1)) |
-		AD7192_MODE_SEL(AD7192_MODE_SINGLE);
-
-	ad7192_write_reg(st, AD7192_REG_CONF, 3, st->conf);
+	struct ad7192_state *st = ad_sigma_delta_to_ad7192(sd);
 
-	spi_bus_lock(st->spi->master);
-	st->done = false;
+	st->mode &= ~AD7192_MODE_SEL_MASK;
+	st->mode |= AD7192_MODE_SEL(mode);
 
-	ret = __ad7192_write_reg(st, 1, 1, AD7192_REG_MODE, 3, st->mode);
-	if (ret < 0)
-		goto out;
-
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-	wait_event_interruptible(st->wq_data_avail, st->done);
-
-	ret = __ad7192_read_reg(st, 1, 0, AD7192_REG_DATA, val, len);
-out:
-	spi_bus_unlock(st->spi->master);
-
-	return ret;
+	return ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 }
 
-static int ad7192_calibrate(struct ad7192_state *st, unsigned mode, unsigned ch)
-{
-	int ret;
-
-	st->conf = (st->conf & ~AD7192_CONF_CHAN(-1)) |
-		AD7192_CONF_CHAN(1 << ch);
-	st->mode = (st->mode & ~AD7192_MODE_SEL(-1)) | AD7192_MODE_SEL(mode);
-
-	ad7192_write_reg(st, AD7192_REG_CONF, 3, st->conf);
-
-	spi_bus_lock(st->spi->master);
-	st->done = false;
-
-	ret = __ad7192_write_reg(st, 1, 1, AD7192_REG_MODE, 3,
-				 (st->devid != ID_AD7195) ?
-				 st->mode | AD7192_MODE_CLKDIV :
-				 st->mode);
-	if (ret < 0)
-		goto out;
-
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-	wait_event_interruptible(st->wq_data_avail, st->done);
-
-	st->mode = (st->mode & ~AD7192_MODE_SEL(-1)) |
-		AD7192_MODE_SEL(AD7192_MODE_IDLE);
-
-	ret = __ad7192_write_reg(st, 1, 0, AD7192_REG_MODE, 3, st->mode);
-out:
-	spi_bus_unlock(st->spi->master);
-
-	return ret;
-}
+static const struct ad_sigma_delta_info ad7192_sigma_delta_info = {
+	.set_channel = ad7192_set_channel,
+	.set_mode = ad7192_set_mode,
+	.has_registers = true,
+	.addr_shift = 3,
+	.read_mask = BIT(6),
+};
 
-static const u8 ad7192_calib_arr[8][2] = {
+static const struct ad_sd_calib_data ad7192_calib_arr[8] = {
 	{AD7192_MODE_CAL_INT_ZERO, AD7192_CH_AIN1},
 	{AD7192_MODE_CAL_INT_FULL, AD7192_CH_AIN1},
 	{AD7192_MODE_CAL_INT_ZERO, AD7192_CH_AIN2},
@@ -332,45 +196,34 @@ static const u8 ad7192_calib_arr[8][2] = {
 
 static int ad7192_calibrate_all(struct ad7192_state *st)
 {
-	int i, ret;
-
-	for (i = 0; i < ARRAY_SIZE(ad7192_calib_arr); i++) {
-		ret = ad7192_calibrate(st, ad7192_calib_arr[i][0],
-				       ad7192_calib_arr[i][1]);
-		if (ret)
-			goto out;
-	}
-
-	return 0;
-out:
-	dev_err(&st->spi->dev, "Calibration failed\n");
-	return ret;
+		return ad_sd_calibrate_all(&st->sd, ad7192_calib_arr,
+				ARRAY_SIZE(ad7192_calib_arr));
 }
 
-static int ad7192_setup(struct ad7192_state *st)
+static int ad7192_setup(struct ad7192_state *st,
+	const struct ad7192_platform_data *pdata)
 {
-	struct iio_dev *indio_dev = spi_get_drvdata(st->spi);
-	struct ad7192_platform_data *pdata = st->pdata;
+	struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
 	unsigned long long scale_uv;
 	int i, ret, id;
 	u8 ones[6];
 
 	/* reset the serial interface */
 	memset(&ones, 0xFF, 6);
-	ret = spi_write(st->spi, &ones, 6);
+	ret = spi_write(st->sd.spi, &ones, 6);
 	if (ret < 0)
 		goto out;
 	msleep(1); /* Wait for at least 500us */
 
 	/* write/read test for device presence */
-	ret = ad7192_read_reg(st, AD7192_REG_ID, &id, 1);
+	ret = ad_sd_read_reg(&st->sd, AD7192_REG_ID, 1, &id);
 	if (ret)
 		goto out;
 
 	id &= AD7192_ID_MASK;
 
 	if (id != st->devid)
-		dev_warn(&st->spi->dev, "device ID query failed (0x%X)\n", id);
+		dev_warn(&st->sd.spi->dev, "device ID query failed (0x%X)\n", id);
 
 	switch (pdata->clock_source_sel) {
 	case AD7192_CLK_EXT_MCLK1_2:
@@ -423,11 +276,11 @@ static int ad7192_setup(struct ad7192_state *st)
 	if (pdata->burnout_curr_en)
 		st->conf |= AD7192_CONF_BURN;
 
-	ret = ad7192_write_reg(st, AD7192_REG_MODE, 3, st->mode);
+	ret = ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 	if (ret)
 		goto out;
 
-	ret = ad7192_write_reg(st, AD7192_REG_CONF, 3, st->conf);
+	ret = ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, st->conf);
 	if (ret)
 		goto out;
 
@@ -448,181 +301,10 @@ static int ad7192_setup(struct ad7192_state *st)
 
 	return 0;
 out:
-	dev_err(&st->spi->dev, "setup failed\n");
-	return ret;
-}
-
-static int ad7192_ring_preenable(struct iio_dev *indio_dev)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-	unsigned channel;
-	int ret;
-
-	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		return -EINVAL;
-
-	ret = iio_sw_buffer_preenable(indio_dev);
-	if (ret < 0)
-		return ret;
-
-	channel = find_first_bit(indio_dev->active_scan_mask,
-				 indio_dev->masklength);
-
-	st->mode  = (st->mode & ~AD7192_MODE_SEL(-1)) |
-		    AD7192_MODE_SEL(AD7192_MODE_CONT);
-	st->conf  = (st->conf & ~AD7192_CONF_CHAN(-1)) |
-		    AD7192_CONF_CHAN(1 << indio_dev->channels[channel].address);
-
-	ad7192_write_reg(st, AD7192_REG_CONF, 3, st->conf);
-
-	spi_bus_lock(st->spi->master);
-	__ad7192_write_reg(st, 1, 1, AD7192_REG_MODE, 3, st->mode);
-
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-
-	return 0;
-}
-
-static int ad7192_ring_postdisable(struct iio_dev *indio_dev)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	st->mode  = (st->mode & ~AD7192_MODE_SEL(-1)) |
-		    AD7192_MODE_SEL(AD7192_MODE_IDLE);
-
-	st->done = false;
-	wait_event_interruptible(st->wq_data_avail, st->done);
-
-	if (!st->irq_dis)
-		disable_irq_nosync(st->spi->irq);
-
-	__ad7192_write_reg(st, 1, 0, AD7192_REG_MODE, 3, st->mode);
-
-	return spi_bus_unlock(st->spi->master);
-}
-
-/**
- * ad7192_trigger_handler() bh of trigger launched polling to ring buffer
- **/
-static irqreturn_t ad7192_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	struct iio_buffer *ring = indio_dev->buffer;
-	struct ad7192_state *st = iio_priv(indio_dev);
-	s64 dat64[2];
-	s32 *dat32 = (s32 *)dat64;
-
-	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		__ad7192_read_reg(st, 1, 1, AD7192_REG_DATA,
-				  dat32,
-				  indio_dev->channels[0].scan_type.realbits/8);
-
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp)
-		dat64[1] = pf->timestamp;
-
-	ring->access->store_to(ring, (u8 *)dat64, pf->timestamp);
-
-	iio_trigger_notify_done(indio_dev->trig);
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-
-	return IRQ_HANDLED;
-}
-
-static const struct iio_buffer_setup_ops ad7192_ring_setup_ops = {
-	.preenable = &ad7192_ring_preenable,
-	.postenable = &iio_triggered_buffer_postenable,
-	.predisable = &iio_triggered_buffer_predisable,
-	.postdisable = &ad7192_ring_postdisable,
-	.validate_scan_mask = &iio_validate_scan_mask_onehot,
-};
-
-static int ad7192_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
-			&ad7192_trigger_handler, &ad7192_ring_setup_ops);
-}
-
-static void ad7192_ring_cleanup(struct iio_dev *indio_dev)
-{
-	iio_triggered_buffer_cleanup(indio_dev);
-}
-
-/**
- * ad7192_data_rdy_trig_poll() the event handler for the data rdy trig
- **/
-static irqreturn_t ad7192_data_rdy_trig_poll(int irq, void *private)
-{
-	struct ad7192_state *st = iio_priv(private);
-
-	st->done = true;
-	wake_up_interruptible(&st->wq_data_avail);
-	disable_irq_nosync(irq);
-	st->irq_dis = true;
-	iio_trigger_poll(st->trig, iio_get_time_ns());
-
-	return IRQ_HANDLED;
-}
-
-static struct iio_trigger_ops ad7192_trigger_ops = {
-	.owner = THIS_MODULE,
-};
-
-static int ad7192_probe_trigger(struct iio_dev *indio_dev)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-	int ret;
-
-	st->trig = iio_trigger_alloc("%s-dev%d",
-					spi_get_device_id(st->spi)->name,
-					indio_dev->id);
-	if (st->trig == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	st->trig->ops = &ad7192_trigger_ops;
-	ret = request_irq(st->spi->irq,
-			  ad7192_data_rdy_trig_poll,
-			  IRQF_TRIGGER_LOW,
-			  spi_get_device_id(st->spi)->name,
-			  indio_dev);
-	if (ret)
-		goto error_free_trig;
-
-	disable_irq_nosync(st->spi->irq);
-	st->irq_dis = true;
-	st->trig->dev.parent = &st->spi->dev;
-	st->trig->private_data = indio_dev;
-
-	ret = iio_trigger_register(st->trig);
-
-	/* select default trigger */
-	indio_dev->trig = st->trig;
-	if (ret)
-		goto error_free_irq;
-
-	return 0;
-
-error_free_irq:
-	free_irq(st->spi->irq, indio_dev);
-error_free_trig:
-	iio_trigger_free(st->trig);
-error_ret:
+	dev_err(&st->sd.spi->dev, "setup failed\n");
 	return ret;
 }
 
-static void ad7192_remove_trigger(struct iio_dev *indio_dev)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	iio_trigger_unregister(st->trig);
-	free_irq(st->spi->irq, indio_dev);
-	iio_trigger_free(st->trig);
-}
-
 static ssize_t ad7192_read_frequency(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
@@ -647,6 +329,8 @@ static ssize_t ad7192_write_frequency(struct device *dev,
 	ret = strict_strtoul(buf, 10, &lval);
 	if (ret)
 		return ret;
+	if (lval == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 	if (iio_buffer_enabled(indio_dev)) {
@@ -662,7 +346,7 @@ static ssize_t ad7192_write_frequency(struct device *dev,
 
 	st->mode &= ~AD7192_MODE_RATE(-1);
 	st->mode |= AD7192_MODE_RATE(div);
-	ad7192_write_reg(st, AD7192_REG_MODE, 3, st->mode);
+	ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 
 out:
 	mutex_unlock(&indio_dev->mlock);
@@ -674,7 +358,6 @@ static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
 		ad7192_read_frequency,
 		ad7192_write_frequency);
 
-
 static ssize_t ad7192_show_scale_available(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
@@ -746,7 +429,7 @@ static ssize_t ad7192_set(struct device *dev,
 		else
 			st->gpocon &= ~AD7192_GPOCON_BPDSW;
 
-		ad7192_write_reg(st, AD7192_REG_GPOCON, 1, st->gpocon);
+		ad_sd_write_reg(&st->sd, AD7192_REG_GPOCON, 1, st->gpocon);
 		break;
 	case AD7192_REG_MODE:
 		if (val)
@@ -754,7 +437,7 @@ static ssize_t ad7192_set(struct device *dev,
 		else
 			st->mode &= ~AD7192_MODE_ACX;
 
-		ad7192_write_reg(st, AD7192_REG_GPOCON, 3, st->mode);
+		ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
 		break;
 	default:
 		ret = -EINVAL;
@@ -798,6 +481,11 @@ static const struct attribute_group ad7195_attribute_group = {
 	.attrs = ad7195_attributes,
 };
 
+static unsigned int ad7192_get_temp_scale(bool unipolar)
+{
+	return unipolar ? 2815 * 2 : 2815;
+}
+
 static int ad7192_read_raw(struct iio_dev *indio_dev,
 			   struct iio_chan_spec const *chan,
 			   int *val,
@@ -805,40 +493,11 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad7192_state *st = iio_priv(indio_dev);
-	int ret, smpl = 0;
 	bool unipolar = !!(st->conf & AD7192_CONF_UNIPOLAR);
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-		if (iio_buffer_enabled(indio_dev))
-			ret = -EBUSY;
-		else
-			ret = ad7192_read(st, chan->address,
-					chan->scan_type.realbits / 8, &smpl);
-		mutex_unlock(&indio_dev->mlock);
-
-		if (ret < 0)
-			return ret;
-
-		*val = (smpl >> chan->scan_type.shift) &
-			((1 << (chan->scan_type.realbits)) - 1);
-
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (!unipolar)
-				*val -= (1 << (chan->scan_type.realbits - 1));
-			break;
-		case IIO_TEMP:
-			*val -= 0x800000;
-			*val /= 2815; /* temp Kelvin */
-			*val -= 273; /* temp Celsius */
-			break;
-		default:
-			return -EINVAL;
-		}
-		return IIO_VAL_INT;
-
+		return ad_sigma_delta_single_conversion(indio_dev, chan, val);
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
@@ -848,11 +507,21 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 			mutex_unlock(&indio_dev->mlock);
 			return IIO_VAL_INT_PLUS_NANO;
 		case IIO_TEMP:
-			*val =  1000;
-			return IIO_VAL_INT;
+			*val = 0;
+			*val2 = 1000000000 / ad7192_get_temp_scale(unipolar);
+			return IIO_VAL_INT_PLUS_NANO;
 		default:
 			return -EINVAL;
 		}
+	case IIO_CHAN_INFO_OFFSET:
+		if (!unipolar)
+			*val = -(1 << (chan->scan_type.realbits - 1));
+		else
+			*val = 0;
+		/* Kelvin to Celsius */
+		if (chan->type == IIO_TEMP)
+			*val -= 273 * ad7192_get_temp_scale(unipolar);
+		return IIO_VAL_INT;
 	}
 
 	return -EINVAL;
@@ -879,18 +548,18 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 		ret = -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
+				ret = 0;
 				tmp = st->conf;
 				st->conf &= ~AD7192_CONF_GAIN(-1);
 				st->conf |= AD7192_CONF_GAIN(i);
-
-				if (tmp != st->conf) {
-					ad7192_write_reg(st, AD7192_REG_CONF,
-							 3, st->conf);
-					ad7192_calibrate_all(st);
-				}
-				ret = 0;
+				if (tmp == st->conf)
+					break;
+				ad_sd_write_reg(&st->sd, AD7192_REG_CONF,
+						 3, st->conf);
+				ad7192_calibrate_all(st);
+				break;
 			}
-
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -900,15 +569,6 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
-static int ad7192_validate_trigger(struct iio_dev *indio_dev,
-				   struct iio_trigger *trig)
-{
-	if (indio_dev->trig != trig)
-		return -EINVAL;
-
-	return 0;
-}
-
 static int ad7192_write_raw_get_fmt(struct iio_dev *indio_dev,
 			       struct iio_chan_spec const *chan,
 			       long mask)
@@ -921,7 +581,7 @@ static const struct iio_info ad7192_info = {
 	.write_raw = &ad7192_write_raw,
 	.write_raw_get_fmt = &ad7192_write_raw_get_fmt,
 	.attrs = &ad7192_attribute_group,
-	.validate_trigger = ad7192_validate_trigger,
+	.validate_trigger = ad_sd_validate_trigger,
 	.driver_module = THIS_MODULE,
 };
 
@@ -930,58 +590,25 @@ static const struct iio_info ad7195_info = {
 	.write_raw = &ad7192_write_raw,
 	.write_raw_get_fmt = &ad7192_write_raw_get_fmt,
 	.attrs = &ad7195_attribute_group,
-	.validate_trigger = ad7192_validate_trigger,
+	.validate_trigger = ad_sd_validate_trigger,
 	.driver_module = THIS_MODULE,
 };
 
-#define AD7192_CHAN_DIFF(_chan, _chan2, _name, _address, _si)		\
-	{ .type = IIO_VOLTAGE,						\
-	  .differential = 1,						\
-	  .indexed = 1,							\
-	  .extend_name = _name,						\
-	  .channel = _chan,						\
-	  .channel2 = _chan2,						\
-	  .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |			\
-	  IIO_CHAN_INFO_SCALE_SHARED_BIT,				\
-	  .address = _address,						\
-	  .scan_index = _si,						\
-	  .scan_type =  IIO_ST('s', 24, 32, 0)}
-
-#define AD7192_CHAN(_chan, _address, _si)				\
-	{ .type = IIO_VOLTAGE,						\
-	  .indexed = 1,							\
-	  .channel = _chan,						\
-	  .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |			\
-	  IIO_CHAN_INFO_SCALE_SHARED_BIT,				\
-	  .address = _address,						\
-	  .scan_index = _si,						\
-	  .scan_type =  IIO_ST('s', 24, 32, 0)}
-
-#define AD7192_CHAN_TEMP(_chan, _address, _si)				\
-	{ .type = IIO_TEMP,						\
-	  .indexed = 1,							\
-	  .channel = _chan,						\
-	  .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |			\
-	  IIO_CHAN_INFO_SCALE_SEPARATE_BIT,				\
-	  .address = _address,						\
-	  .scan_index = _si,						\
-	  .scan_type =  IIO_ST('s', 24, 32, 0)}
-
-static struct iio_chan_spec ad7192_channels[] = {
-	AD7192_CHAN_DIFF(1, 2, NULL, AD7192_CH_AIN1P_AIN2M, 0),
-	AD7192_CHAN_DIFF(3, 4, NULL, AD7192_CH_AIN3P_AIN4M, 1),
-	AD7192_CHAN_TEMP(0, AD7192_CH_TEMP, 2),
-	AD7192_CHAN_DIFF(2, 2, "shorted", AD7192_CH_AIN2P_AIN2M, 3),
-	AD7192_CHAN(1, AD7192_CH_AIN1, 4),
-	AD7192_CHAN(2, AD7192_CH_AIN2, 5),
-	AD7192_CHAN(3, AD7192_CH_AIN3, 6),
-	AD7192_CHAN(4, AD7192_CH_AIN4, 7),
+static const struct iio_chan_spec ad7192_channels[] = {
+	AD_SD_DIFF_CHANNEL(0, 1, 2, AD7192_CH_AIN1P_AIN2M, 24, 32, 0),
+	AD_SD_DIFF_CHANNEL(1, 3, 4, AD7192_CH_AIN3P_AIN4M, 24, 32, 0),
+	AD_SD_TEMP_CHANNEL(2, AD7192_CH_TEMP, 24, 32, 0),
+	AD_SD_SHORTED_CHANNEL(3, 2, AD7192_CH_AIN2P_AIN2M, 24, 32, 0),
+	AD_SD_CHANNEL(4, 1, AD7192_CH_AIN1, 24, 32, 0),
+	AD_SD_CHANNEL(5, 2, AD7192_CH_AIN2, 24, 32, 0),
+	AD_SD_CHANNEL(6, 3, AD7192_CH_AIN3, 24, 32, 0),
+	AD_SD_CHANNEL(7, 4, AD7192_CH_AIN4, 24, 32, 0),
 	IIO_CHAN_SOFT_TIMESTAMP(8),
 };
 
 static int __devinit ad7192_probe(struct spi_device *spi)
 {
-	struct ad7192_platform_data *pdata = spi->dev.platform_data;
+	const struct ad7192_platform_data *pdata = spi->dev.platform_data;
 	struct ad7192_state *st;
 	struct iio_dev *indio_dev;
 	int ret , voltage_uv = 0;
@@ -1011,8 +638,6 @@ static int __devinit ad7192_probe(struct spi_device *spi)
 		voltage_uv = regulator_get_voltage(st->reg);
 	}
 
-	st->pdata = pdata;
-
 	if (pdata && pdata->vref_mv)
 		st->int_vref_mv = pdata->vref_mv;
 	else if (voltage_uv)
@@ -1021,7 +646,6 @@ static int __devinit ad7192_probe(struct spi_device *spi)
 		dev_warn(&spi->dev, "reference voltage undefined\n");
 
 	spi_set_drvdata(spi, indio_dev);
-	st->spi = spi;
 	st->devid = spi_get_device_id(spi)->driver_data;
 	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
@@ -1033,17 +657,13 @@ static int __devinit ad7192_probe(struct spi_device *spi)
 	else
 		indio_dev->info = &ad7192_info;
 
-	init_waitqueue_head(&st->wq_data_avail);
+	ad_sd_init(&st->sd, indio_dev, spi, &ad7192_sigma_delta_info);
 
-	ret = ad7192_register_ring_funcs_and_init(indio_dev);
+	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
 	if (ret)
 		goto error_disable_reg;
 
-	ret = ad7192_probe_trigger(indio_dev);
-	if (ret)
-		goto error_ring_cleanup;
-
-	ret = ad7192_setup(st);
+	ret = ad7192_setup(st, pdata);
 	if (ret)
 		goto error_remove_trigger;
 
@@ -1053,9 +673,7 @@ static int __devinit ad7192_probe(struct spi_device *spi)
 	return 0;
 
 error_remove_trigger:
-	ad7192_remove_trigger(indio_dev);
-error_ring_cleanup:
-	ad7192_ring_cleanup(indio_dev);
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
@@ -1068,14 +686,13 @@ error_put_reg:
 	return ret;
 }
 
-static int ad7192_remove(struct spi_device *spi)
+static int __devexit ad7192_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct ad7192_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	ad7192_remove_trigger(indio_dev);
-	ad7192_ring_cleanup(indio_dev);
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 
 	if (!IS_ERR(st->reg)) {
 		regulator_disable(st->reg);
diff --git a/drivers/staging/iio/adc/ad7298_core.c b/drivers/staging/iio/adc/ad7298_core.c
index 6141f4a70cf..4c75114e7d7 100644
--- a/drivers/staging/iio/adc/ad7298_core.c
+++ b/drivers/staging/iio/adc/ad7298_core.c
@@ -38,7 +38,7 @@
 		},							\
 	}
 
-static struct iio_chan_spec ad7298_channels[] = {
+static const struct iio_chan_spec ad7298_channels[] = {
 	{
 		.type = IIO_TEMP,
 		.indexed = 1,
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c
index fd1d855ff57..c2906a85fed 100644
--- a/drivers/staging/iio/adc/ad7298_ring.c
+++ b/drivers/staging/iio/adc/ad7298_ring.c
@@ -75,8 +75,7 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad7298_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
-	s64 time_ns;
+	s64 time_ns = 0;
 	__u16 buf[16];
 	int b_sent, i;
 
@@ -94,7 +93,7 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p)
 						 indio_dev->masklength); i++)
 		buf[i] = be16_to_cpu(st->rx_buf[i]);
 
-	indio_dev->buffer->access->store_to(ring, (u8 *)buf, time_ns);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)buf);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/staging/iio/adc/ad7476.h b/drivers/staging/iio/adc/ad7476.h
deleted file mode 100644
index b1dd9317fe1..00000000000
--- a/drivers/staging/iio/adc/ad7476.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * AD7476/5/7/8 (A) SPI ADC driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-#ifndef IIO_ADC_AD7476_H_
-#define IIO_ADC_AD7476_H_
-
-#define RES_MASK(bits)	((1 << (bits)) - 1)
-
-/*
- * TODO: struct ad7476_platform_data needs to go into include/linux/iio
- */
-
-struct ad7476_platform_data {
-	u16				vref_mv;
-};
-
-struct ad7476_chip_info {
-	u16				int_vref_mv;
-	struct iio_chan_spec		channel[2];
-};
-
-struct ad7476_state {
-	struct spi_device		*spi;
-	const struct ad7476_chip_info	*chip_info;
-	struct regulator		*reg;
-	u16				int_vref_mv;
-	struct spi_transfer		xfer;
-	struct spi_message		msg;
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	unsigned char			data[2] ____cacheline_aligned;
-};
-
-enum ad7476_supported_device_ids {
-	ID_AD7466,
-	ID_AD7467,
-	ID_AD7468,
-	ID_AD7475,
-	ID_AD7476,
-	ID_AD7477,
-	ID_AD7478,
-	ID_AD7495
-};
-
-#ifdef CONFIG_IIO_BUFFER
-int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev);
-void ad7476_ring_cleanup(struct iio_dev *indio_dev);
-#else /* CONFIG_IIO_BUFFER */
-
-static inline int
-ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static inline void ad7476_ring_cleanup(struct iio_dev *indio_dev)
-{
-}
-#endif /* CONFIG_IIO_BUFFER */
-#endif /* IIO_ADC_AD7476_H_ */
diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c
deleted file mode 100644
index d087b21c51f..00000000000
--- a/drivers/staging/iio/adc/ad7476_ring.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2010-2012 Analog Devices Inc.
- * Copyright (C) 2008 Jonathan Cameron
- *
- * Licensed under the GPL-2 or later.
- *
- * ad7476_ring.c
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/spi/spi.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
-
-#include "ad7476.h"
-
-static irqreturn_t ad7476_trigger_handler(int irq, void  *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	struct ad7476_state *st = iio_priv(indio_dev);
-	s64 time_ns;
-	__u8 *rxbuf;
-	int b_sent;
-
-	rxbuf = kzalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (rxbuf == NULL)
-		goto done;
-
-	b_sent = spi_read(st->spi, rxbuf,
-			  st->chip_info->channel[0].scan_type.storagebits / 8);
-	if (b_sent < 0)
-		goto done;
-
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		memcpy(rxbuf + indio_dev->scan_bytes - sizeof(s64),
-			&time_ns, sizeof(time_ns));
-
-	indio_dev->buffer->access->store_to(indio_dev->buffer, rxbuf, time_ns);
-done:
-	iio_trigger_notify_done(indio_dev->trig);
-	kfree(rxbuf);
-
-	return IRQ_HANDLED;
-}
-
-int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	return iio_triggered_buffer_setup(indio_dev, NULL,
-			&ad7476_trigger_handler, NULL);
-}
-
-void ad7476_ring_cleanup(struct iio_dev *indio_dev)
-{
-	iio_triggered_buffer_cleanup(indio_dev);
-}
diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
index 10f59896597..9221a74efd1 100644
--- a/drivers/staging/iio/adc/ad7606.h
+++ b/drivers/staging/iio/adc/ad7606.h
@@ -51,7 +51,7 @@ struct ad7606_platform_data {
 struct ad7606_chip_info {
 	const char			*name;
 	u16				int_vref_mv;
-	struct iio_chan_spec		*channels;
+	const struct iio_chan_spec	*channels;
 	unsigned			num_channels;
 };
 
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index ccb97fecdea..bae61cbe921 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -241,7 +241,7 @@ static const struct attribute_group ad7606_attribute_group_range = {
 		.scan_type = IIO_ST('s', 16, 16, 0),		\
 	}
 
-static struct iio_chan_spec ad7606_8_channels[] = {
+static const struct iio_chan_spec ad7606_8_channels[] = {
 	AD7606_CHANNEL(0),
 	AD7606_CHANNEL(1),
 	AD7606_CHANNEL(2),
@@ -253,7 +253,7 @@ static struct iio_chan_spec ad7606_8_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(8),
 };
 
-static struct iio_chan_spec ad7606_6_channels[] = {
+static const struct iio_chan_spec ad7606_6_channels[] = {
 	AD7606_CHANNEL(0),
 	AD7606_CHANNEL(1),
 	AD7606_CHANNEL(2),
@@ -263,7 +263,7 @@ static struct iio_chan_spec ad7606_6_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(6),
 };
 
-static struct iio_chan_spec ad7606_4_channels[] = {
+static const struct iio_chan_spec ad7606_4_channels[] = {
 	AD7606_CHANNEL(0),
 	AD7606_CHANNEL(1),
 	AD7606_CHANNEL(2),
diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
index f15afe47c20..ba04d0ffd4f 100644
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ b/drivers/staging/iio/adc/ad7606_ring.c
@@ -46,7 +46,6 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
 	struct ad7606_state *st = container_of(work_s, struct ad7606_state,
 						poll_work);
 	struct iio_dev *indio_dev = iio_priv_to_dev(st);
-	struct iio_buffer *ring = indio_dev->buffer;
 	s64 time_ns;
 	__u8 *buf;
 	int ret;
@@ -84,7 +83,7 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(buf + indio_dev->scan_bytes - sizeof(s64))) = time_ns;
 
-	ring->access->store_to(indio_dev->buffer, buf, time_ns);
+	iio_push_to_buffer(indio_dev->buffer, buf);
 done:
 	gpio_set_value(st->pdata->gpio_convst, 0);
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index 1ece2ac8de5..0a1328b8657 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -1,5 +1,5 @@
 /*
- * AD7780/AD7781 SPI ADC driver
+ * AD7170/AD7171 and AD7780/AD7781 SPI ADC driver
  *
  * Copyright 2011 Analog Devices Inc.
  *
@@ -20,6 +20,7 @@
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+#include <linux/iio/adc/ad_sigma_delta.h>
 
 #include "ad7780.h"
 
@@ -33,53 +34,53 @@
 #define AD7780_PAT0	(1 << 0)
 
 struct ad7780_chip_info {
-	struct iio_chan_spec		channel;
+	struct iio_chan_spec	channel;
+	unsigned int		pattern_mask;
+	unsigned int		pattern;
 };
 
 struct ad7780_state {
-	struct spi_device		*spi;
 	const struct ad7780_chip_info	*chip_info;
 	struct regulator		*reg;
-	struct ad7780_platform_data	*pdata;
-	wait_queue_head_t		wq_data_avail;
-	bool				done;
+	int				powerdown_gpio;
+	unsigned int	gain;
 	u16				int_vref_mv;
-	struct spi_transfer		xfer;
-	struct spi_message		msg;
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	unsigned int			data ____cacheline_aligned;
+
+	struct ad_sigma_delta sd;
 };
 
 enum ad7780_supported_device_ids {
+	ID_AD7170,
+	ID_AD7171,
 	ID_AD7780,
 	ID_AD7781,
 };
 
-static int ad7780_read(struct ad7780_state *st, int *val)
+static struct ad7780_state *ad_sigma_delta_to_ad7780(struct ad_sigma_delta *sd)
 {
-	int ret;
-
-	spi_bus_lock(st->spi->master);
-
-	enable_irq(st->spi->irq);
-	st->done = false;
-	gpio_set_value(st->pdata->gpio_pdrst, 1);
+	return container_of(sd, struct ad7780_state, sd);
+}
 
-	ret = wait_event_interruptible(st->wq_data_avail, st->done);
-	disable_irq_nosync(st->spi->irq);
-	if (ret)
-		goto out;
+static int ad7780_set_mode(struct ad_sigma_delta *sigma_delta,
+	enum ad_sigma_delta_mode mode)
+{
+	struct ad7780_state *st = ad_sigma_delta_to_ad7780(sigma_delta);
+	unsigned val;
+
+	switch (mode) {
+	case AD_SD_MODE_SINGLE:
+	case AD_SD_MODE_CONTINUOUS:
+		val = 1;
+		break;
+	default:
+		val = 0;
+		break;
+	}
 
-	ret = spi_sync_locked(st->spi, &st->msg);
-	*val = be32_to_cpu(st->data);
-out:
-	gpio_set_value(st->pdata->gpio_pdrst, 0);
-	spi_bus_unlock(st->spi->master);
+	if (gpio_is_valid(st->powerdown_gpio))
+		gpio_set_value(st->powerdown_gpio, val);
 
-	return ret;
+	return 0;
 }
 
 static int ad7780_read_raw(struct iio_dev *indio_dev,
@@ -89,87 +90,75 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad7780_state *st = iio_priv(indio_dev);
-	struct iio_chan_spec channel = st->chip_info->channel;
-	int ret, smpl = 0;
 	unsigned long scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-		ret = ad7780_read(st, &smpl);
-		mutex_unlock(&indio_dev->mlock);
-
-		if (ret < 0)
-			return ret;
-
-		if ((smpl & AD7780_ERR) ||
-			!((smpl & AD7780_PAT0) && !(smpl & AD7780_PAT1)))
-			return -EIO;
-
-		*val = (smpl >> channel.scan_type.shift) &
-			((1 << (channel.scan_type.realbits)) - 1);
-		*val -= (1 << (channel.scan_type.realbits - 1));
-
-		if (!(smpl & AD7780_GAIN))
-			*val *= 128;
-
-		return IIO_VAL_INT;
+		return ad_sigma_delta_single_conversion(indio_dev, chan, val);
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->int_vref_mv * 100000)
-			>> (channel.scan_type.realbits - 1);
+		scale_uv = (st->int_vref_mv * 100000 * st->gain)
+			>> (chan->scan_type.realbits - 1);
 		*val =  scale_uv / 100000;
 		*val2 = (scale_uv % 100000) * 10;
 		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_OFFSET:
+		*val -= (1 << (chan->scan_type.realbits - 1));
+		return IIO_VAL_INT;
 	}
+
 	return -EINVAL;
 }
 
+static int ad7780_postprocess_sample(struct ad_sigma_delta *sigma_delta,
+	unsigned int raw_sample)
+{
+	struct ad7780_state *st = ad_sigma_delta_to_ad7780(sigma_delta);
+	const struct ad7780_chip_info *chip_info = st->chip_info;
+
+	if ((raw_sample & AD7780_ERR) ||
+		((raw_sample & chip_info->pattern_mask) != chip_info->pattern))
+		return -EIO;
+
+	if (raw_sample & AD7780_GAIN)
+		st->gain = 1;
+	else
+		st->gain = 128;
+
+	return 0;
+}
+
+static const struct ad_sigma_delta_info ad7780_sigma_delta_info = {
+	.set_mode = ad7780_set_mode,
+	.postprocess_sample = ad7780_postprocess_sample,
+	.has_registers = false,
+};
+
+#define AD7780_CHANNEL(bits, wordsize) \
+	AD_SD_CHANNEL(1, 0, 0, bits, 32, wordsize - bits)
+
 static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
+	[ID_AD7170] = {
+		.channel = AD7780_CHANNEL(12, 24),
+		.pattern = 0x5,
+		.pattern_mask = 0x7,
+	},
+	[ID_AD7171] = {
+		.channel = AD7780_CHANNEL(16, 24),
+		.pattern = 0x5,
+		.pattern_mask = 0x7,
+	},
 	[ID_AD7780] = {
-		.channel = {
-			.type = IIO_VOLTAGE,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_type = {
-				.sign = 's',
-				.realbits = 24,
-				.storagebits = 32,
-				.shift = 8,
-			},
-		},
+		.channel = AD7780_CHANNEL(24, 32),
+		.pattern = 0x1,
+		.pattern_mask = 0x3,
 	},
 	[ID_AD7781] = {
-		.channel = {
-			.type = IIO_VOLTAGE,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_type = {
-				.sign = 's',
-				.realbits = 20,
-				.storagebits = 32,
-				.shift = 12,
-			},
-		},
+		.channel = AD7780_CHANNEL(20, 32),
+		.pattern = 0x1,
+		.pattern_mask = 0x3,
 	},
 };
 
-/**
- *  Interrupt handler
- */
-static irqreturn_t ad7780_interrupt(int irq, void *dev_id)
-{
-	struct ad7780_state *st = dev_id;
-
-	st->done = true;
-	wake_up_interruptible(&st->wq_data_avail);
-
-	return IRQ_HANDLED;
-};
-
 static const struct iio_info ad7780_info = {
 	.read_raw = &ad7780_read_raw,
 	.driver_module = THIS_MODULE,
@@ -182,16 +171,14 @@ static int __devinit ad7780_probe(struct spi_device *spi)
 	struct iio_dev *indio_dev;
 	int ret, voltage_uv = 0;
 
-	if (!pdata) {
-		dev_dbg(&spi->dev, "no platform data?\n");
-		return -ENODEV;
-	}
-
 	indio_dev = iio_device_alloc(sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
+	st->gain = 1;
+
+	ad_sd_init(&st->sd, indio_dev, spi, &ad7780_sigma_delta_info);
 
 	st->reg = regulator_get(&spi->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
@@ -205,8 +192,6 @@ static int __devinit ad7780_probe(struct spi_device *spi)
 	st->chip_info =
 		&ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
-	st->pdata = pdata;
-
 	if (pdata && pdata->vref_mv)
 		st->int_vref_mv = pdata->vref_mv;
 	else if (voltage_uv)
@@ -215,7 +200,6 @@ static int __devinit ad7780_probe(struct spi_device *spi)
 		dev_warn(&spi->dev, "reference voltage unspecified\n");
 
 	spi_set_drvdata(spi, indio_dev);
-	st->spi = spi;
 
 	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
@@ -224,40 +208,34 @@ static int __devinit ad7780_probe(struct spi_device *spi)
 	indio_dev->num_channels = 1;
 	indio_dev->info = &ad7780_info;
 
-	init_waitqueue_head(&st->wq_data_avail);
-
-	/* Setup default message */
+	if (pdata && gpio_is_valid(pdata->gpio_pdrst)) {
 
-	st->xfer.rx_buf = &st->data;
-	st->xfer.len = st->chip_info->channel.scan_type.storagebits / 8;
-
-	spi_message_init(&st->msg);
-	spi_message_add_tail(&st->xfer, &st->msg);
-
-	ret = gpio_request_one(st->pdata->gpio_pdrst, GPIOF_OUT_INIT_LOW,
+		ret = gpio_request_one(pdata->gpio_pdrst, GPIOF_OUT_INIT_LOW,
 			       "AD7780 /PDRST");
-	if (ret) {
-		dev_err(&spi->dev, "failed to request GPIO PDRST\n");
-		goto error_disable_reg;
+		if (ret) {
+			dev_err(&spi->dev, "failed to request GPIO PDRST\n");
+			goto error_disable_reg;
+		}
+		st->powerdown_gpio = pdata->gpio_pdrst;
+	} else {
+		st->powerdown_gpio = -1;
 	}
 
-	ret = request_irq(spi->irq, ad7780_interrupt,
-		IRQF_TRIGGER_FALLING, spi_get_device_id(spi)->name, st);
+	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
 	if (ret)
 		goto error_free_gpio;
 
-	disable_irq(spi->irq);
-
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_irq;
+		goto error_cleanup_buffer_and_trigger;
 
 	return 0;
 
-error_free_irq:
-	free_irq(spi->irq, st);
+error_cleanup_buffer_and_trigger:
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 error_free_gpio:
-	gpio_free(st->pdata->gpio_pdrst);
+	if (pdata && gpio_is_valid(pdata->gpio_pdrst))
+		gpio_free(pdata->gpio_pdrst);
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
@@ -270,14 +248,17 @@ error_put_reg:
 	return ret;
 }
 
-static int ad7780_remove(struct spi_device *spi)
+static int __devexit ad7780_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct ad7780_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	free_irq(spi->irq, st);
-	gpio_free(st->pdata->gpio_pdrst);
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
+
+	if (gpio_is_valid(st->powerdown_gpio))
+		gpio_free(st->powerdown_gpio);
+
 	if (!IS_ERR(st->reg)) {
 		regulator_disable(st->reg);
 		regulator_put(st->reg);
@@ -288,6 +269,8 @@ static int ad7780_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id ad7780_id[] = {
+	{"ad7170", ID_AD7170},
+	{"ad7171", ID_AD7171},
 	{"ad7780", ID_AD7780},
 	{"ad7781", ID_AD7781},
 	{}
@@ -306,5 +289,5 @@ static struct spi_driver ad7780_driver = {
 module_spi_driver(ad7780_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7780/1 ADC");
+MODULE_DESCRIPTION("Analog Devices AD7780 and similar ADCs");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
index 76fdd7145fc..691a7be6f5c 100644
--- a/drivers/staging/iio/adc/ad7793.c
+++ b/drivers/staging/iio/adc/ad7793.c
@@ -1,5 +1,5 @@
 /*
- * AD7792/AD7793 SPI ADC driver
+ * AD7785/AD7792/AD7793/AD7794/AD7795 SPI ADC driver
  *
  * Copyright 2011-2012 Analog Devices Inc.
  *
@@ -24,6 +24,7 @@
 #include <linux/iio/trigger.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
+#include <linux/iio/adc/ad_sigma_delta.h>
 
 #include "ad7793.h"
 
@@ -36,198 +37,65 @@
  */
 
 struct ad7793_chip_info {
-	struct iio_chan_spec		channel[7];
+	const struct iio_chan_spec *channels;
+	unsigned int num_channels;
 };
 
 struct ad7793_state {
-	struct spi_device		*spi;
-	struct iio_trigger		*trig;
 	const struct ad7793_chip_info	*chip_info;
 	struct regulator		*reg;
-	struct ad7793_platform_data	*pdata;
-	wait_queue_head_t		wq_data_avail;
-	bool				done;
-	bool				irq_dis;
 	u16				int_vref_mv;
 	u16				mode;
 	u16				conf;
 	u32				scale_avail[8][2];
 
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	u8				data[4] ____cacheline_aligned;
+	struct ad_sigma_delta		sd;
+
 };
 
 enum ad7793_supported_device_ids {
+	ID_AD7785,
 	ID_AD7792,
 	ID_AD7793,
+	ID_AD7794,
+	ID_AD7795,
 };
 
-static int __ad7793_write_reg(struct ad7793_state *st, bool locked,
-			      bool cs_change, unsigned char reg,
-			      unsigned size, unsigned val)
-{
-	u8 *data = st->data;
-	struct spi_transfer t = {
-		.tx_buf		= data,
-		.len		= size + 1,
-		.cs_change	= cs_change,
-	};
-	struct spi_message m;
-
-	data[0] = AD7793_COMM_WRITE | AD7793_COMM_ADDR(reg);
-
-	switch (size) {
-	case 3:
-		data[1] = val >> 16;
-		data[2] = val >> 8;
-		data[3] = val;
-		break;
-	case 2:
-		data[1] = val >> 8;
-		data[2] = val;
-		break;
-	case 1:
-		data[1] = val;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t, &m);
-
-	if (locked)
-		return spi_sync_locked(st->spi, &m);
-	else
-		return spi_sync(st->spi, &m);
-}
-
-static int ad7793_write_reg(struct ad7793_state *st,
-			    unsigned reg, unsigned size, unsigned val)
+static struct ad7793_state *ad_sigma_delta_to_ad7793(struct ad_sigma_delta *sd)
 {
-	return __ad7793_write_reg(st, false, false, reg, size, val);
+	return container_of(sd, struct ad7793_state, sd);
 }
 
-static int __ad7793_read_reg(struct ad7793_state *st, bool locked,
-			     bool cs_change, unsigned char reg,
-			     int *val, unsigned size)
+static int ad7793_set_channel(struct ad_sigma_delta *sd, unsigned int channel)
 {
-	u8 *data = st->data;
-	int ret;
-	struct spi_transfer t[] = {
-		{
-			.tx_buf = data,
-			.len = 1,
-		}, {
-			.rx_buf = data,
-			.len = size,
-			.cs_change = cs_change,
-		},
-	};
-	struct spi_message m;
-
-	data[0] = AD7793_COMM_READ | AD7793_COMM_ADDR(reg);
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-
-	if (locked)
-		ret = spi_sync_locked(st->spi, &m);
-	else
-		ret = spi_sync(st->spi, &m);
-
-	if (ret < 0)
-		return ret;
+	struct ad7793_state *st = ad_sigma_delta_to_ad7793(sd);
 
-	switch (size) {
-	case 3:
-		*val = data[0] << 16 | data[1] << 8 | data[2];
-		break;
-	case 2:
-		*val = data[0] << 8 | data[1];
-		break;
-	case 1:
-		*val = data[0];
-		break;
-	default:
-		return -EINVAL;
-	}
+	st->conf &= ~AD7793_CONF_CHAN_MASK;
+	st->conf |= AD7793_CONF_CHAN(channel);
 
-	return 0;
-}
-
-static int ad7793_read_reg(struct ad7793_state *st,
-			   unsigned reg, int *val, unsigned size)
-{
-	return __ad7793_read_reg(st, 0, 0, reg, val, size);
+	return ad_sd_write_reg(&st->sd, AD7793_REG_CONF, 2, st->conf);
 }
 
-static int ad7793_read(struct ad7793_state *st, unsigned ch,
-		       unsigned len, int *val)
+static int ad7793_set_mode(struct ad_sigma_delta *sd,
+			   enum ad_sigma_delta_mode mode)
 {
-	int ret;
-	st->conf = (st->conf & ~AD7793_CONF_CHAN(-1)) | AD7793_CONF_CHAN(ch);
-	st->mode = (st->mode & ~AD7793_MODE_SEL(-1)) |
-		AD7793_MODE_SEL(AD7793_MODE_SINGLE);
-
-	ad7793_write_reg(st, AD7793_REG_CONF, sizeof(st->conf), st->conf);
+	struct ad7793_state *st = ad_sigma_delta_to_ad7793(sd);
 
-	spi_bus_lock(st->spi->master);
-	st->done = false;
+	st->mode &= ~AD7793_MODE_SEL_MASK;
+	st->mode |= AD7793_MODE_SEL(mode);
 
-	ret = __ad7793_write_reg(st, 1, 1, AD7793_REG_MODE,
-				 sizeof(st->mode), st->mode);
-	if (ret < 0)
-		goto out;
-
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-	wait_event_interruptible(st->wq_data_avail, st->done);
-
-	ret = __ad7793_read_reg(st, 1, 0, AD7793_REG_DATA, val, len);
-out:
-	spi_bus_unlock(st->spi->master);
-
-	return ret;
+	return ad_sd_write_reg(&st->sd, AD7793_REG_MODE, 2, st->mode);
 }
 
-static int ad7793_calibrate(struct ad7793_state *st, unsigned mode, unsigned ch)
-{
-	int ret;
-
-	st->conf = (st->conf & ~AD7793_CONF_CHAN(-1)) | AD7793_CONF_CHAN(ch);
-	st->mode = (st->mode & ~AD7793_MODE_SEL(-1)) | AD7793_MODE_SEL(mode);
-
-	ad7793_write_reg(st, AD7793_REG_CONF, sizeof(st->conf), st->conf);
-
-	spi_bus_lock(st->spi->master);
-	st->done = false;
-
-	ret = __ad7793_write_reg(st, 1, 1, AD7793_REG_MODE,
-				 sizeof(st->mode), st->mode);
-	if (ret < 0)
-		goto out;
-
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-	wait_event_interruptible(st->wq_data_avail, st->done);
-
-	st->mode = (st->mode & ~AD7793_MODE_SEL(-1)) |
-		AD7793_MODE_SEL(AD7793_MODE_IDLE);
-
-	ret = __ad7793_write_reg(st, 1, 0, AD7793_REG_MODE,
-				 sizeof(st->mode), st->mode);
-out:
-	spi_bus_unlock(st->spi->master);
-
-	return ret;
-}
+static const struct ad_sigma_delta_info ad7793_sigma_delta_info = {
+	.set_channel = ad7793_set_channel,
+	.set_mode = ad7793_set_mode,
+	.has_registers = true,
+	.addr_shift = 3,
+	.read_mask = BIT(6),
+};
 
-static const u8 ad7793_calib_arr[6][2] = {
+static const struct ad_sd_calib_data ad7793_calib_arr[6] = {
 	{AD7793_MODE_CAL_INT_ZERO, AD7793_CH_AIN1P_AIN1M},
 	{AD7793_MODE_CAL_INT_FULL, AD7793_CH_AIN1P_AIN1M},
 	{AD7793_MODE_CAL_INT_ZERO, AD7793_CH_AIN2P_AIN2M},
@@ -238,59 +106,49 @@ static const u8 ad7793_calib_arr[6][2] = {
 
 static int ad7793_calibrate_all(struct ad7793_state *st)
 {
-	int i, ret;
-
-	for (i = 0; i < ARRAY_SIZE(ad7793_calib_arr); i++) {
-		ret = ad7793_calibrate(st, ad7793_calib_arr[i][0],
-				       ad7793_calib_arr[i][1]);
-		if (ret)
-			goto out;
-	}
-
-	return 0;
-out:
-	dev_err(&st->spi->dev, "Calibration failed\n");
-	return ret;
+	return ad_sd_calibrate_all(&st->sd, ad7793_calib_arr,
+				   ARRAY_SIZE(ad7793_calib_arr));
 }
 
-static int ad7793_setup(struct ad7793_state *st)
+static int ad7793_setup(struct iio_dev *indio_dev,
+	const struct ad7793_platform_data *pdata)
 {
+	struct ad7793_state *st = iio_priv(indio_dev);
 	int i, ret = -1;
 	unsigned long long scale_uv;
 	u32 id;
 
 	/* reset the serial interface */
-	ret = spi_write(st->spi, (u8 *)&ret, sizeof(ret));
+	ret = spi_write(st->sd.spi, (u8 *)&ret, sizeof(ret));
 	if (ret < 0)
 		goto out;
 	msleep(1); /* Wait for at least 500us */
 
 	/* write/read test for device presence */
-	ret = ad7793_read_reg(st, AD7793_REG_ID, &id, 1);
+	ret = ad_sd_read_reg(&st->sd, AD7793_REG_ID, 1, &id);
 	if (ret)
 		goto out;
 
 	id &= AD7793_ID_MASK;
 
-	if (!((id == AD7792_ID) || (id == AD7793_ID))) {
-		dev_err(&st->spi->dev, "device ID query failed\n");
+	if (!((id == AD7792_ID) || (id == AD7793_ID) || (id == AD7795_ID))) {
+		dev_err(&st->sd.spi->dev, "device ID query failed\n");
 		goto out;
 	}
 
-	st->mode  = (st->pdata->mode & ~AD7793_MODE_SEL(-1)) |
-			AD7793_MODE_SEL(AD7793_MODE_IDLE);
-	st->conf  = st->pdata->conf & ~AD7793_CONF_CHAN(-1);
+	st->mode = pdata->mode;
+	st->conf = pdata->conf;
 
-	ret = ad7793_write_reg(st, AD7793_REG_MODE, sizeof(st->mode), st->mode);
+	ret = ad7793_set_mode(&st->sd, AD_SD_MODE_IDLE);
 	if (ret)
 		goto out;
 
-	ret = ad7793_write_reg(st, AD7793_REG_CONF, sizeof(st->conf), st->conf);
+	ret = ad7793_set_channel(&st->sd, 0);
 	if (ret)
 		goto out;
 
-	ret = ad7793_write_reg(st, AD7793_REG_IO,
-			       sizeof(st->pdata->io), st->pdata->io);
+	ret = ad_sd_write_reg(&st->sd, AD7793_REG_IO,
+			       sizeof(pdata->io), pdata->io);
 	if (ret)
 		goto out;
 
@@ -301,7 +159,7 @@ static int ad7793_setup(struct ad7793_state *st)
 	/* Populate available ADC input ranges */
 	for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++) {
 		scale_uv = ((u64)st->int_vref_mv * 100000000)
-			>> (st->chip_info->channel[0].scan_type.realbits -
+			>> (st->chip_info->channels[0].scan_type.realbits -
 			(!!(st->conf & AD7793_CONF_UNIPOLAR) ? 0 : 1));
 		scale_uv >>= i;
 
@@ -311,184 +169,10 @@ static int ad7793_setup(struct ad7793_state *st)
 
 	return 0;
 out:
-	dev_err(&st->spi->dev, "setup failed\n");
-	return ret;
-}
-
-static int ad7793_ring_preenable(struct iio_dev *indio_dev)
-{
-	struct ad7793_state *st = iio_priv(indio_dev);
-	unsigned channel;
-	int ret;
-
-	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		return -EINVAL;
-	ret = iio_sw_buffer_preenable(indio_dev);
-	if (ret < 0)
-		return ret;
-
-	channel = find_first_bit(indio_dev->active_scan_mask,
-				 indio_dev->masklength);
-
-	st->mode  = (st->mode & ~AD7793_MODE_SEL(-1)) |
-		    AD7793_MODE_SEL(AD7793_MODE_CONT);
-	st->conf  = (st->conf & ~AD7793_CONF_CHAN(-1)) |
-		    AD7793_CONF_CHAN(indio_dev->channels[channel].address);
-
-	ad7793_write_reg(st, AD7793_REG_CONF, sizeof(st->conf), st->conf);
-
-	spi_bus_lock(st->spi->master);
-	__ad7793_write_reg(st, 1, 1, AD7793_REG_MODE,
-			   sizeof(st->mode), st->mode);
-
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-
-	return 0;
-}
-
-static int ad7793_ring_postdisable(struct iio_dev *indio_dev)
-{
-	struct ad7793_state *st = iio_priv(indio_dev);
-
-	st->mode  = (st->mode & ~AD7793_MODE_SEL(-1)) |
-		    AD7793_MODE_SEL(AD7793_MODE_IDLE);
-
-	st->done = false;
-	wait_event_interruptible(st->wq_data_avail, st->done);
-
-	if (!st->irq_dis)
-		disable_irq_nosync(st->spi->irq);
-
-	__ad7793_write_reg(st, 1, 0, AD7793_REG_MODE,
-			   sizeof(st->mode), st->mode);
-
-	return spi_bus_unlock(st->spi->master);
-}
-
-/**
- * ad7793_trigger_handler() bh of trigger launched polling to ring buffer
- **/
-
-static irqreturn_t ad7793_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	struct iio_buffer *ring = indio_dev->buffer;
-	struct ad7793_state *st = iio_priv(indio_dev);
-	s64 dat64[2];
-	s32 *dat32 = (s32 *)dat64;
-
-	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		__ad7793_read_reg(st, 1, 1, AD7793_REG_DATA,
-				  dat32,
-				  indio_dev->channels[0].scan_type.realbits/8);
-
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp)
-		dat64[1] = pf->timestamp;
-
-	ring->access->store_to(ring, (u8 *)dat64, pf->timestamp);
-
-	iio_trigger_notify_done(indio_dev->trig);
-	st->irq_dis = false;
-	enable_irq(st->spi->irq);
-
-	return IRQ_HANDLED;
-}
-
-static const struct iio_buffer_setup_ops ad7793_ring_setup_ops = {
-	.preenable = &ad7793_ring_preenable,
-	.postenable = &iio_triggered_buffer_postenable,
-	.predisable = &iio_triggered_buffer_predisable,
-	.postdisable = &ad7793_ring_postdisable,
-	.validate_scan_mask = &iio_validate_scan_mask_onehot,
-};
-
-static int ad7793_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	return iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
-			&ad7793_trigger_handler, &ad7793_ring_setup_ops);
-}
-
-static void ad7793_ring_cleanup(struct iio_dev *indio_dev)
-{
-	iio_triggered_buffer_cleanup(indio_dev);
-}
-
-/**
- * ad7793_data_rdy_trig_poll() the event handler for the data rdy trig
- **/
-static irqreturn_t ad7793_data_rdy_trig_poll(int irq, void *private)
-{
-	struct ad7793_state *st = iio_priv(private);
-
-	st->done = true;
-	wake_up_interruptible(&st->wq_data_avail);
-	disable_irq_nosync(irq);
-	st->irq_dis = true;
-	iio_trigger_poll(st->trig, iio_get_time_ns());
-
-	return IRQ_HANDLED;
-}
-
-static struct iio_trigger_ops ad7793_trigger_ops = {
-	.owner = THIS_MODULE,
-};
-
-static int ad7793_probe_trigger(struct iio_dev *indio_dev)
-{
-	struct ad7793_state *st = iio_priv(indio_dev);
-	int ret;
-
-	st->trig = iio_trigger_alloc("%s-dev%d",
-					spi_get_device_id(st->spi)->name,
-					indio_dev->id);
-	if (st->trig == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	st->trig->ops = &ad7793_trigger_ops;
-
-	ret = request_irq(st->spi->irq,
-			  ad7793_data_rdy_trig_poll,
-			  IRQF_TRIGGER_LOW,
-			  spi_get_device_id(st->spi)->name,
-			  indio_dev);
-	if (ret)
-		goto error_free_trig;
-
-	disable_irq_nosync(st->spi->irq);
-	st->irq_dis = true;
-	st->trig->dev.parent = &st->spi->dev;
-	st->trig->private_data = indio_dev;
-
-	ret = iio_trigger_register(st->trig);
-
-	/* select default trigger */
-	indio_dev->trig = st->trig;
-	if (ret)
-		goto error_free_irq;
-
-	return 0;
-
-error_free_irq:
-	free_irq(st->spi->irq, indio_dev);
-error_free_trig:
-	iio_trigger_free(st->trig);
-error_ret:
+	dev_err(&st->sd.spi->dev, "setup failed\n");
 	return ret;
 }
 
-static void ad7793_remove_trigger(struct iio_dev *indio_dev)
-{
-	struct ad7793_state *st = iio_priv(indio_dev);
-
-	iio_trigger_unregister(st->trig);
-	free_irq(st->spi->irq, indio_dev);
-	iio_trigger_free(st->trig);
-}
-
 static const u16 sample_freq_avail[16] = {0, 470, 242, 123, 62, 50, 39, 33, 19,
 					  17, 16, 12, 10, 8, 6, 4};
 
@@ -531,7 +215,7 @@ static ssize_t ad7793_write_frequency(struct device *dev,
 			mutex_lock(&indio_dev->mlock);
 			st->mode &= ~AD7793_MODE_RATE(-1);
 			st->mode |= AD7793_MODE_RATE(i);
-			ad7793_write_reg(st, AD7793_REG_MODE,
+			ad_sd_write_reg(&st->sd, AD7793_REG_MODE,
 					 sizeof(st->mode), st->mode);
 			mutex_unlock(&indio_dev->mlock);
 			ret = 0;
@@ -563,8 +247,9 @@ static ssize_t ad7793_show_scale_available(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR_NAMED(in_m_in_scale_available, in-in_scale_available,
-			     S_IRUGO, ad7793_show_scale_available, NULL, 0);
+static IIO_DEVICE_ATTR_NAMED(in_m_in_scale_available,
+		in_voltage-voltage_scale_available, S_IRUGO,
+		ad7793_show_scale_available, NULL, 0);
 
 static struct attribute *ad7793_attributes[] = {
 	&iio_dev_attr_sampling_frequency.dev_attr.attr,
@@ -584,29 +269,16 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad7793_state *st = iio_priv(indio_dev);
-	int ret, smpl = 0;
+	int ret;
 	unsigned long long scale_uv;
 	bool unipolar = !!(st->conf & AD7793_CONF_UNIPOLAR);
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-		if (iio_buffer_enabled(indio_dev))
-			ret = -EBUSY;
-		else
-			ret = ad7793_read(st, chan->address,
-					chan->scan_type.realbits / 8, &smpl);
-		mutex_unlock(&indio_dev->mlock);
-
+		ret = ad_sigma_delta_single_conversion(indio_dev, chan, val);
 		if (ret < 0)
 			return ret;
 
-		*val = (smpl >> chan->scan_type.shift) &
-			((1 << (chan->scan_type.realbits)) - 1);
-
-		if (!unipolar)
-			*val -= (1 << (chan->scan_type.realbits - 1));
-
 		return IIO_VAL_INT;
 
 	case IIO_CHAN_INFO_SCALE:
@@ -620,25 +292,38 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
 				return IIO_VAL_INT_PLUS_NANO;
 			} else {
 				/* 1170mV / 2^23 * 6 */
-				scale_uv = (1170ULL * 100000000ULL * 6ULL)
-					>> (chan->scan_type.realbits -
-					    (unipolar ? 0 : 1));
+				scale_uv = (1170ULL * 100000000ULL * 6ULL);
 			}
 			break;
 		case IIO_TEMP:
-			/* Always uses unity gain and internal ref */
-			scale_uv = (2500ULL * 100000000ULL)
-				>> (chan->scan_type.realbits -
-				(unipolar ? 0 : 1));
+				/* 1170mV / 0.81 mV/C / 2^23 */
+				scale_uv = 1444444444444ULL;
 			break;
 		default:
 			return -EINVAL;
 		}
 
-		*val2 = do_div(scale_uv, 100000000) * 10;
-		*val =  scale_uv;
-
+		scale_uv >>= (chan->scan_type.realbits - (unipolar ? 0 : 1));
+		*val = 0;
+		*val2 = scale_uv;
 		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_OFFSET:
+		if (!unipolar)
+			*val = -(1 << (chan->scan_type.realbits - 1));
+		else
+			*val = 0;
+
+		/* Kelvin to Celsius */
+		if (chan->type == IIO_TEMP) {
+			unsigned long long offset;
+			unsigned int shift;
+
+			shift = chan->scan_type.realbits - (unipolar ? 0 : 1);
+			offset = 273ULL << shift;
+			do_div(offset, 1444);
+			*val -= offset;
+		}
+		return IIO_VAL_INT;
 	}
 	return -EINVAL;
 }
@@ -664,19 +349,20 @@ static int ad7793_write_raw(struct iio_dev *indio_dev,
 		ret = -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
+				ret = 0;
 				tmp = st->conf;
 				st->conf &= ~AD7793_CONF_GAIN(-1);
 				st->conf |= AD7793_CONF_GAIN(i);
 
-				if (tmp != st->conf) {
-					ad7793_write_reg(st, AD7793_REG_CONF,
-							 sizeof(st->conf),
-							 st->conf);
-					ad7793_calibrate_all(st);
-				}
-				ret = 0;
-			}
+				if (tmp == st->conf)
+					break;
 
+				ad_sd_write_reg(&st->sd, AD7793_REG_CONF,
+						sizeof(st->conf), st->conf);
+				ad7793_calibrate_all(st);
+				break;
+			}
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -685,15 +371,6 @@ static int ad7793_write_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
-static int ad7793_validate_trigger(struct iio_dev *indio_dev,
-				   struct iio_trigger *trig)
-{
-	if (indio_dev->trig != trig)
-		return -EINVAL;
-
-	return 0;
-}
-
 static int ad7793_write_raw_get_fmt(struct iio_dev *indio_dev,
 			       struct iio_chan_spec const *chan,
 			       long mask)
@@ -706,162 +383,67 @@ static const struct iio_info ad7793_info = {
 	.write_raw = &ad7793_write_raw,
 	.write_raw_get_fmt = &ad7793_write_raw_get_fmt,
 	.attrs = &ad7793_attribute_group,
-	.validate_trigger = ad7793_validate_trigger,
+	.validate_trigger = ad_sd_validate_trigger,
 	.driver_module = THIS_MODULE,
 };
 
+#define DECLARE_AD7793_CHANNELS(_name, _b, _sb, _s) \
+const struct iio_chan_spec _name##_channels[] = { \
+	AD_SD_DIFF_CHANNEL(0, 0, 0, AD7793_CH_AIN1P_AIN1M, (_b), (_sb), (_s)), \
+	AD_SD_DIFF_CHANNEL(1, 1, 1, AD7793_CH_AIN2P_AIN2M, (_b), (_sb), (_s)), \
+	AD_SD_DIFF_CHANNEL(2, 2, 2, AD7793_CH_AIN3P_AIN3M, (_b), (_sb), (_s)), \
+	AD_SD_SHORTED_CHANNEL(3, 0, AD7793_CH_AIN1M_AIN1M, (_b), (_sb), (_s)), \
+	AD_SD_TEMP_CHANNEL(4, AD7793_CH_TEMP, (_b), (_sb), (_s)), \
+	AD_SD_SUPPLY_CHANNEL(5, 3, AD7793_CH_AVDD_MONITOR, (_b), (_sb), (_s)), \
+	IIO_CHAN_SOFT_TIMESTAMP(6), \
+}
+
+#define DECLARE_AD7795_CHANNELS(_name, _b, _sb) \
+const struct iio_chan_spec _name##_channels[] = { \
+	AD_SD_DIFF_CHANNEL(0, 0, 0, AD7793_CH_AIN1P_AIN1M, (_b), (_sb), 0), \
+	AD_SD_DIFF_CHANNEL(1, 1, 1, AD7793_CH_AIN2P_AIN2M, (_b), (_sb), 0), \
+	AD_SD_DIFF_CHANNEL(2, 2, 2, AD7793_CH_AIN3P_AIN3M, (_b), (_sb), 0), \
+	AD_SD_DIFF_CHANNEL(3, 3, 3, AD7795_CH_AIN4P_AIN4M, (_b), (_sb), 0), \
+	AD_SD_DIFF_CHANNEL(4, 4, 4, AD7795_CH_AIN5P_AIN5M, (_b), (_sb), 0), \
+	AD_SD_DIFF_CHANNEL(5, 5, 5, AD7795_CH_AIN6P_AIN6M, (_b), (_sb), 0), \
+	AD_SD_SHORTED_CHANNEL(6, 0, AD7795_CH_AIN1M_AIN1M, (_b), (_sb), 0), \
+	AD_SD_TEMP_CHANNEL(7, AD7793_CH_TEMP, (_b), (_sb), 0), \
+	AD_SD_SUPPLY_CHANNEL(8, 3, AD7793_CH_AVDD_MONITOR, (_b), (_sb), 0), \
+	IIO_CHAN_SOFT_TIMESTAMP(9), \
+}
+
+static DECLARE_AD7793_CHANNELS(ad7785, 20, 32, 4);
+static DECLARE_AD7793_CHANNELS(ad7792, 16, 32, 0);
+static DECLARE_AD7793_CHANNELS(ad7793, 24, 32, 0);
+static DECLARE_AD7795_CHANNELS(ad7794, 16, 32);
+static DECLARE_AD7795_CHANNELS(ad7795, 24, 32);
+
 static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
-	[ID_AD7793] = {
-		.channel[0] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.indexed = 1,
-			.channel = 0,
-			.channel2 = 0,
-			.address = AD7793_CH_AIN1P_AIN1M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 0,
-			.scan_type = IIO_ST('s', 24, 32, 0)
-		},
-		.channel[1] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.indexed = 1,
-			.channel = 1,
-			.channel2 = 1,
-			.address = AD7793_CH_AIN2P_AIN2M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 1,
-			.scan_type = IIO_ST('s', 24, 32, 0)
-		},
-		.channel[2] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.indexed = 1,
-			.channel = 2,
-			.channel2 = 2,
-			.address = AD7793_CH_AIN3P_AIN3M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 2,
-			.scan_type = IIO_ST('s', 24, 32, 0)
-		},
-		.channel[3] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.extend_name = "shorted",
-			.indexed = 1,
-			.channel = 2,
-			.channel2 = 2,
-			.address = AD7793_CH_AIN1M_AIN1M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 3,
-			.scan_type = IIO_ST('s', 24, 32, 0)
-		},
-		.channel[4] = {
-			.type = IIO_TEMP,
-			.indexed = 1,
-			.channel = 0,
-			.address = AD7793_CH_TEMP,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
-			.scan_index = 4,
-			.scan_type = IIO_ST('s', 24, 32, 0),
-		},
-		.channel[5] = {
-			.type = IIO_VOLTAGE,
-			.extend_name = "supply",
-			.indexed = 1,
-			.channel = 4,
-			.address = AD7793_CH_AVDD_MONITOR,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
-			.scan_index = 5,
-			.scan_type = IIO_ST('s', 24, 32, 0),
-		},
-		.channel[6] = IIO_CHAN_SOFT_TIMESTAMP(6),
+	[ID_AD7785] = {
+		.channels = ad7785_channels,
+		.num_channels = ARRAY_SIZE(ad7785_channels),
 	},
 	[ID_AD7792] = {
-		.channel[0] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.indexed = 1,
-			.channel = 0,
-			.channel2 = 0,
-			.address = AD7793_CH_AIN1P_AIN1M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 0,
-			.scan_type = IIO_ST('s', 16, 32, 0)
-		},
-		.channel[1] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.indexed = 1,
-			.channel = 1,
-			.channel2 = 1,
-			.address = AD7793_CH_AIN2P_AIN2M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 1,
-			.scan_type = IIO_ST('s', 16, 32, 0)
-		},
-		.channel[2] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.indexed = 1,
-			.channel = 2,
-			.channel2 = 2,
-			.address = AD7793_CH_AIN3P_AIN3M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 2,
-			.scan_type = IIO_ST('s', 16, 32, 0)
-		},
-		.channel[3] = {
-			.type = IIO_VOLTAGE,
-			.differential = 1,
-			.extend_name = "shorted",
-			.indexed = 1,
-			.channel = 2,
-			.channel2 = 2,
-			.address = AD7793_CH_AIN1M_AIN1M,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SHARED_BIT,
-			.scan_index = 3,
-			.scan_type = IIO_ST('s', 16, 32, 0)
-		},
-		.channel[4] = {
-			.type = IIO_TEMP,
-			.indexed = 1,
-			.channel = 0,
-			.address = AD7793_CH_TEMP,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
-			.scan_index = 4,
-			.scan_type = IIO_ST('s', 16, 32, 0),
-		},
-		.channel[5] = {
-			.type = IIO_VOLTAGE,
-			.extend_name = "supply",
-			.indexed = 1,
-			.channel = 4,
-			.address = AD7793_CH_AVDD_MONITOR,
-			.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
-			IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
-			.scan_index = 5,
-			.scan_type = IIO_ST('s', 16, 32, 0),
-		},
-		.channel[6] = IIO_CHAN_SOFT_TIMESTAMP(6),
+		.channels = ad7792_channels,
+		.num_channels = ARRAY_SIZE(ad7792_channels),
+	},
+	[ID_AD7793] = {
+		.channels = ad7793_channels,
+		.num_channels = ARRAY_SIZE(ad7793_channels),
+	},
+	[ID_AD7794] = {
+		.channels = ad7794_channels,
+		.num_channels = ARRAY_SIZE(ad7794_channels),
+	},
+	[ID_AD7795] = {
+		.channels = ad7795_channels,
+		.num_channels = ARRAY_SIZE(ad7795_channels),
 	},
 };
 
 static int __devinit ad7793_probe(struct spi_device *spi)
 {
-	struct ad7793_platform_data *pdata = spi->dev.platform_data;
+	const struct ad7793_platform_data *pdata = spi->dev.platform_data;
 	struct ad7793_state *st;
 	struct iio_dev *indio_dev;
 	int ret, voltage_uv = 0;
@@ -882,6 +464,8 @@ static int __devinit ad7793_probe(struct spi_device *spi)
 
 	st = iio_priv(indio_dev);
 
+	ad_sd_init(&st->sd, indio_dev, spi, &ad7793_sigma_delta_info);
+
 	st->reg = regulator_get(&spi->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
@@ -894,36 +478,27 @@ static int __devinit ad7793_probe(struct spi_device *spi)
 	st->chip_info =
 		&ad7793_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
-	st->pdata = pdata;
-
 	if (pdata && pdata->vref_mv)
 		st->int_vref_mv = pdata->vref_mv;
 	else if (voltage_uv)
 		st->int_vref_mv = voltage_uv / 1000;
 	else
-		st->int_vref_mv = 2500; /* Build-in ref */
+		st->int_vref_mv = 1170; /* Build-in ref */
 
 	spi_set_drvdata(spi, indio_dev);
-	st->spi = spi;
 
 	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = st->chip_info->channel;
-	indio_dev->num_channels = 7;
+	indio_dev->channels = st->chip_info->channels;
+	indio_dev->num_channels = st->chip_info->num_channels;
 	indio_dev->info = &ad7793_info;
 
-	init_waitqueue_head(&st->wq_data_avail);
-
-	ret = ad7793_register_ring_funcs_and_init(indio_dev);
+	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
 	if (ret)
 		goto error_disable_reg;
 
-	ret = ad7793_probe_trigger(indio_dev);
-	if (ret)
-		goto error_unreg_ring;
-
-	ret = ad7793_setup(st);
+	ret = ad7793_setup(indio_dev, pdata);
 	if (ret)
 		goto error_remove_trigger;
 
@@ -934,9 +509,7 @@ static int __devinit ad7793_probe(struct spi_device *spi)
 	return 0;
 
 error_remove_trigger:
-	ad7793_remove_trigger(indio_dev);
-error_unreg_ring:
-	ad7793_ring_cleanup(indio_dev);
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
@@ -949,14 +522,13 @@ error_put_reg:
 	return ret;
 }
 
-static int ad7793_remove(struct spi_device *spi)
+static int __devexit ad7793_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct ad7793_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	ad7793_remove_trigger(indio_dev);
-	ad7793_ring_cleanup(indio_dev);
+	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 
 	if (!IS_ERR(st->reg)) {
 		regulator_disable(st->reg);
@@ -969,8 +541,11 @@ static int ad7793_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id ad7793_id[] = {
+	{"ad7785", ID_AD7785},
 	{"ad7792", ID_AD7792},
 	{"ad7793", ID_AD7793},
+	{"ad7794", ID_AD7794},
+	{"ad7795", ID_AD7795},
 	{}
 };
 MODULE_DEVICE_TABLE(spi, ad7793_id);
@@ -987,5 +562,5 @@ static struct spi_driver ad7793_driver = {
 module_spi_driver(ad7793_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7792/3 ADC");
+MODULE_DESCRIPTION("Analog Devices AD7793 and simialr ADCs");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7793.h b/drivers/staging/iio/adc/ad7793.h
index 64f7d41dc45..8fdd450a2cd 100644
--- a/drivers/staging/iio/adc/ad7793.h
+++ b/drivers/staging/iio/adc/ad7793.h
@@ -41,6 +41,7 @@
 
 /* Mode Register Bit Designations (AD7793_REG_MODE) */
 #define AD7793_MODE_SEL(x)	(((x) & 0x7) << 13) /* Operation Mode Select */
+#define AD7793_MODE_SEL_MASK	(0x7 << 13) /* Operation Mode Select mask */
 #define AD7793_MODE_CLKSRC(x)	(((x) & 0x3) << 6) /* ADC Clock Source Select */
 #define AD7793_MODE_RATE(x)	((x) & 0xF) /* Filter Update Rate Select */
 
@@ -69,7 +70,8 @@
 #define AD7793_CONF_GAIN(x)	(((x) & 0x7) << 8) /* Gain Select */
 #define AD7793_CONF_REFSEL	(1 << 7) /* INT/EXT Reference Select */
 #define AD7793_CONF_BUF		(1 << 4) /* Buffered Mode Enable */
-#define AD7793_CONF_CHAN(x)	((x) & 0x7) /* Channel select */
+#define AD7793_CONF_CHAN(x)	((x) & 0xf) /* Channel select */
+#define AD7793_CONF_CHAN_MASK	0xf /* Channel select mask */
 
 #define AD7793_CH_AIN1P_AIN1M	0 /* AIN1(+) - AIN1(-) */
 #define AD7793_CH_AIN2P_AIN2M	1 /* AIN2(+) - AIN2(-) */
@@ -78,9 +80,15 @@
 #define AD7793_CH_TEMP		6 /* Temp Sensor */
 #define AD7793_CH_AVDD_MONITOR	7 /* AVDD Monitor */
 
+#define AD7795_CH_AIN4P_AIN4M	4 /* AIN4(+) - AIN4(-) */
+#define AD7795_CH_AIN5P_AIN5M	5 /* AIN5(+) - AIN5(-) */
+#define AD7795_CH_AIN6P_AIN6M	6 /* AIN6(+) - AIN6(-) */
+#define AD7795_CH_AIN1M_AIN1M	8 /* AIN1(-) - AIN1(-) */
+
 /* ID Register Bit Designations (AD7793_REG_ID) */
 #define AD7792_ID		0xA
 #define AD7793_ID		0xB
+#define AD7795_ID		0xF
 #define AD7793_ID_MASK		0xF
 
 /* IO (Excitation Current Sources) Register Bit Designations (AD7793_REG_IO) */
diff --git a/drivers/staging/iio/adc/ad7887_core.c b/drivers/staging/iio/adc/ad7887_core.c
index 397b8494715..551790584a1 100644
--- a/drivers/staging/iio/adc/ad7887_core.c
+++ b/drivers/staging/iio/adc/ad7887_core.c
@@ -219,7 +219,7 @@ error_put_reg:
 	return ret;
 }
 
-static int ad7887_remove(struct spi_device *spi)
+static int __devexit ad7887_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct ad7887_state *st = iio_priv(indio_dev);
diff --git a/drivers/staging/iio/adc/ad7887_ring.c b/drivers/staging/iio/adc/ad7887_ring.c
index c76fdb5081c..b39923bbeed 100644
--- a/drivers/staging/iio/adc/ad7887_ring.c
+++ b/drivers/staging/iio/adc/ad7887_ring.c
@@ -95,7 +95,7 @@ static irqreturn_t ad7887_trigger_handler(int irq, void *p)
 		memcpy(buf + indio_dev->scan_bytes - sizeof(s64),
 		       &time_ns, sizeof(time_ns));
 
-	indio_dev->buffer->access->store_to(indio_dev->buffer, buf, time_ns);
+	iio_push_to_buffer(indio_dev->buffer, buf);
 done:
 	kfree(buf);
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c
index 858a685e388..86026d9b20b 100644
--- a/drivers/staging/iio/adc/ad799x_ring.c
+++ b/drivers/staging/iio/adc/ad799x_ring.c
@@ -35,7 +35,6 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 	s64 time_ns;
 	__u8 *rxbuf;
 	int b_sent;
@@ -78,7 +77,7 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
 		memcpy(rxbuf + indio_dev->scan_bytes - sizeof(s64),
 			&time_ns, sizeof(time_ns));
 
-	ring->access->store_to(indio_dev->buffer, rxbuf, time_ns);
+	iio_push_to_buffer(indio_dev->buffer, rxbuf);
 done:
 	kfree(rxbuf);
 out:
diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c
index 348d051fc2f..7e9bd0001cc 100644
--- a/drivers/staging/iio/adc/lpc32xx_adc.c
+++ b/drivers/staging/iio/adc/lpc32xx_adc.c
@@ -108,7 +108,7 @@ static const struct iio_info lpc32xx_adc_iio_info = {
 	.scan_index = _index,				\
 }
 
-static struct iio_chan_spec lpc32xx_adc_iio_channels[] = {
+static const struct iio_chan_spec lpc32xx_adc_iio_channels[] = {
 	LPC32XX_ADC_CHANNEL(0),
 	LPC32XX_ADC_CHANNEL(1),
 	LPC32XX_ADC_CHANNEL(2),
diff --git a/drivers/staging/iio/adc/max1363.h b/drivers/staging/iio/adc/max1363.h
index 2cd0112067b..c746918683f 100644
--- a/drivers/staging/iio/adc/max1363.h
+++ b/drivers/staging/iio/adc/max1363.h
@@ -100,7 +100,7 @@ enum max1363_modes {
  */
 struct max1363_chip_info {
 	const struct iio_info		*info;
-	struct iio_chan_spec *channels;
+	const struct iio_chan_spec *channels;
 	int num_channels;
 	const enum max1363_modes	*mode_list;
 	enum max1363_modes		default_mode;
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index 6799ce23a39..d7b4ffcfa05 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -335,12 +335,12 @@ static const enum max1363_modes max1363_mode_list[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(8)			\
 	}
 
-static struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8, 0);
-static struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10, 0);
-static struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12, 0);
-static struct iio_chan_spec max1361_channels[] =
+static const struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8, 0);
+static const struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10, 0);
+static const struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12, 0);
+static const struct iio_chan_spec max1361_channels[] =
 	MAX1363_4X_CHANS(10, MAX1363_EV_M);
-static struct iio_chan_spec max1363_channels[] =
+static const struct iio_chan_spec max1363_channels[] =
 	MAX1363_4X_CHANS(12, MAX1363_EV_M);
 
 /* Applies to max1236, max1237 */
@@ -392,9 +392,9 @@ static const enum max1363_modes max1238_mode_list[] = {
 	MAX1363_CHAN_B(11, 10, d11m10, 23, bits, 0),	\
 	IIO_CHAN_SOFT_TIMESTAMP(24)			\
 	}
-static struct iio_chan_spec max1038_channels[] = MAX1363_12X_CHANS(8);
-static struct iio_chan_spec max1138_channels[] = MAX1363_12X_CHANS(10);
-static struct iio_chan_spec max1238_channels[] = MAX1363_12X_CHANS(12);
+static const struct iio_chan_spec max1038_channels[] = MAX1363_12X_CHANS(8);
+static const struct iio_chan_spec max1138_channels[] = MAX1363_12X_CHANS(10);
+static const struct iio_chan_spec max1238_channels[] = MAX1363_12X_CHANS(12);
 
 static const enum max1363_modes max11607_mode_list[] = {
 	_s0, _s1, _s2, _s3,
@@ -433,9 +433,9 @@ static const enum max1363_modes max11608_mode_list[] = {
 	MAX1363_CHAN_B(7, 6, d7m6, 15, bits, 0),	\
 	IIO_CHAN_SOFT_TIMESTAMP(16)			\
 }
-static struct iio_chan_spec max11602_channels[] = MAX1363_8X_CHANS(8);
-static struct iio_chan_spec max11608_channels[] = MAX1363_8X_CHANS(10);
-static struct iio_chan_spec max11614_channels[] = MAX1363_8X_CHANS(12);
+static const struct iio_chan_spec max11602_channels[] = MAX1363_8X_CHANS(8);
+static const struct iio_chan_spec max11608_channels[] = MAX1363_8X_CHANS(10);
+static const struct iio_chan_spec max11614_channels[] = MAX1363_8X_CHANS(12);
 
 static const enum max1363_modes max11644_mode_list[] = {
 	_s0, _s1, s0to1, d0m1, d1m0,
@@ -449,8 +449,8 @@ static const enum max1363_modes max11644_mode_list[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(4)			\
 	}
 
-static struct iio_chan_spec max11646_channels[] = MAX1363_2X_CHANS(10);
-static struct iio_chan_spec max11644_channels[] = MAX1363_2X_CHANS(12);
+static const struct iio_chan_spec max11646_channels[] = MAX1363_2X_CHANS(10);
+static const struct iio_chan_spec max11644_channels[] = MAX1363_2X_CHANS(12);
 
 enum { max1361,
        max1362,
@@ -1367,7 +1367,7 @@ error_out:
 	return ret;
 }
 
-static int max1363_remove(struct i2c_client *client)
+static int __devexit max1363_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct max1363_state *st = iio_priv(indio_dev);
@@ -1434,11 +1434,11 @@ static struct i2c_driver max1363_driver = {
 		.name = "max1363",
 	},
 	.probe = max1363_probe,
-	.remove = max1363_remove,
+	.remove = __devexit_p(max1363_remove),
 	.id_table = max1363_id,
 };
 module_i2c_driver(max1363_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("Maxim 1363 ADC");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
index 774ae1b6355..5f74f3b7671 100644
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ b/drivers/staging/iio/adc/max1363_ring.c
@@ -80,7 +80,7 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
 
 	if (indio_dev->scan_timestamp)
 		memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns));
-	iio_push_to_buffer(indio_dev->buffer, rxbuf, time_ns);
+	iio_push_to_buffer(indio_dev->buffer, rxbuf);
 
 done_free:
 	kfree(rxbuf);
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
new file mode 100644
index 00000000000..ca7c1fa88e7
--- /dev/null
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -0,0 +1,590 @@
+/*
+ * Freescale i.MX28 LRADC driver
+ *
+ * Copyright (c) 2012 DENX Software Engineering, GmbH.
+ * Marek Vasut <marex@denx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/sysfs.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/stmp_device.h>
+#include <linux/bitops.h>
+#include <linux/completion.h>
+
+#include <mach/mxs.h>
+#include <mach/common.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define DRIVER_NAME		"mxs-lradc"
+
+#define LRADC_MAX_DELAY_CHANS	4
+#define LRADC_MAX_MAPPED_CHANS	8
+#define LRADC_MAX_TOTAL_CHANS	16
+
+#define LRADC_DELAY_TIMER_HZ	2000
+
+/*
+ * Make this runtime configurable if necessary. Currently, if the buffered mode
+ * is enabled, the LRADC takes LRADC_DELAY_TIMER_LOOP samples of data before
+ * triggering IRQ. The sampling happens every (LRADC_DELAY_TIMER_PER / 2000)
+ * seconds. The result is that the samples arrive every 500mS.
+ */
+#define LRADC_DELAY_TIMER_PER	200
+#define LRADC_DELAY_TIMER_LOOP	5
+
+static const char * const mxs_lradc_irq_name[] = {
+	"mxs-lradc-touchscreen",
+	"mxs-lradc-thresh0",
+	"mxs-lradc-thresh1",
+	"mxs-lradc-channel0",
+	"mxs-lradc-channel1",
+	"mxs-lradc-channel2",
+	"mxs-lradc-channel3",
+	"mxs-lradc-channel4",
+	"mxs-lradc-channel5",
+	"mxs-lradc-channel6",
+	"mxs-lradc-channel7",
+	"mxs-lradc-button0",
+	"mxs-lradc-button1",
+};
+
+struct mxs_lradc_chan {
+	uint8_t				slot;
+	uint8_t				flags;
+};
+
+struct mxs_lradc {
+	struct device		*dev;
+	void __iomem		*base;
+	int			irq[13];
+
+	uint32_t		*buffer;
+	struct iio_trigger	*trig;
+
+	struct mutex		lock;
+
+	uint8_t			enable;
+
+	struct completion	completion;
+};
+
+#define	LRADC_CTRL0				0x00
+#define LRADC_CTRL0_TOUCH_DETECT_ENABLE		(1 << 23)
+#define LRADC_CTRL0_TOUCH_SCREEN_TYPE		(1 << 22)
+
+#define	LRADC_CTRL1				0x10
+#define	LRADC_CTRL1_LRADC_IRQ(n)		(1 << (n))
+#define	LRADC_CTRL1_LRADC_IRQ_MASK		0x1fff
+#define	LRADC_CTRL1_LRADC_IRQ_EN(n)		(1 << ((n) + 16))
+#define	LRADC_CTRL1_LRADC_IRQ_EN_MASK		(0x1fff << 16)
+
+#define	LRADC_CTRL2				0x20
+#define	LRADC_CTRL2_TEMPSENSE_PWD		(1 << 15)
+
+#define	LRADC_CH(n)				(0x50 + (0x10 * (n)))
+#define	LRADC_CH_ACCUMULATE			(1 << 29)
+#define	LRADC_CH_NUM_SAMPLES_MASK		(0x1f << 24)
+#define	LRADC_CH_NUM_SAMPLES_OFFSET		24
+#define	LRADC_CH_VALUE_MASK			0x3ffff
+#define	LRADC_CH_VALUE_OFFSET			0
+
+#define	LRADC_DELAY(n)				(0xd0 + (0x10 * (n)))
+#define	LRADC_DELAY_TRIGGER_LRADCS_MASK		(0xff << 24)
+#define	LRADC_DELAY_TRIGGER_LRADCS_OFFSET	24
+#define	LRADC_DELAY_KICK			(1 << 20)
+#define	LRADC_DELAY_TRIGGER_DELAYS_MASK		(0xf << 16)
+#define	LRADC_DELAY_TRIGGER_DELAYS_OFFSET	16
+#define	LRADC_DELAY_LOOP_COUNT_MASK		(0x1f << 11)
+#define	LRADC_DELAY_LOOP_COUNT_OFFSET		11
+#define	LRADC_DELAY_DELAY_MASK			0x7ff
+#define	LRADC_DELAY_DELAY_OFFSET		0
+
+#define	LRADC_CTRL4				0x140
+#define	LRADC_CTRL4_LRADCSELECT_MASK(n)		(0xf << ((n) * 4))
+#define	LRADC_CTRL4_LRADCSELECT_OFFSET(n)	((n) * 4)
+
+/*
+ * Raw I/O operations
+ */
+static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
+			const struct iio_chan_spec *chan,
+			int *val, int *val2, long m)
+{
+	struct mxs_lradc *lradc = iio_priv(iio_dev);
+	int ret;
+
+	if (m != IIO_CHAN_INFO_RAW)
+		return -EINVAL;
+
+	/* Check for invalid channel */
+	if (chan->channel > LRADC_MAX_TOTAL_CHANS)
+		return -EINVAL;
+
+	/*
+	 * See if there is no buffered operation in progess. If there is, simply
+	 * bail out. This can be improved to support both buffered and raw IO at
+	 * the same time, yet the code becomes horribly complicated. Therefore I
+	 * applied KISS principle here.
+	 */
+	ret = mutex_trylock(&lradc->lock);
+	if (!ret)
+		return -EBUSY;
+
+	INIT_COMPLETION(lradc->completion);
+
+	/*
+	 * No buffered operation in progress, map the channel and trigger it.
+	 * Virtual channel 0 is always used here as the others are always not
+	 * used if doing raw sampling.
+	 */
+	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+
+	writel(chan->channel, lradc->base + LRADC_CTRL4);
+	writel(0, lradc->base + LRADC_CH(0));
+
+	/* Enable the IRQ and start sampling the channel. */
+	writel(LRADC_CTRL1_LRADC_IRQ_EN(0),
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_SET);
+	writel(1 << 0, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
+
+	/* Wait for completion on the channel, 1 second max. */
+	ret = wait_for_completion_killable_timeout(&lradc->completion, HZ);
+	if (!ret)
+		ret = -ETIMEDOUT;
+	if (ret < 0)
+		goto err;
+
+	/* Read the data. */
+	*val = readl(lradc->base + LRADC_CH(0)) & LRADC_CH_VALUE_MASK;
+	ret = IIO_VAL_INT;
+
+err:
+	writel(LRADC_CTRL1_LRADC_IRQ_EN(0),
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+
+	mutex_unlock(&lradc->lock);
+
+	return ret;
+}
+
+static const struct iio_info mxs_lradc_iio_info = {
+	.driver_module		= THIS_MODULE,
+	.read_raw		= mxs_lradc_read_raw,
+};
+
+/*
+ * IRQ Handling
+ */
+static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
+{
+	struct iio_dev *iio = data;
+	struct mxs_lradc *lradc = iio_priv(iio);
+	unsigned long reg = readl(lradc->base + LRADC_CTRL1);
+
+	if (!(reg & LRADC_CTRL1_LRADC_IRQ_MASK))
+		return IRQ_NONE;
+
+	/*
+	 * Touchscreen IRQ handling code shall probably have priority
+	 * and therefore shall be placed here.
+	 */
+
+	if (iio_buffer_enabled(iio))
+		iio_trigger_poll(iio->trig, iio_get_time_ns());
+	else if (reg & LRADC_CTRL1_LRADC_IRQ(0))
+		complete(&lradc->completion);
+
+	writel(reg & LRADC_CTRL1_LRADC_IRQ_MASK,
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Trigger handling
+ */
+static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *iio = pf->indio_dev;
+	struct mxs_lradc *lradc = iio_priv(iio);
+	struct iio_buffer *buffer = iio->buffer;
+	const uint32_t chan_value = LRADC_CH_ACCUMULATE |
+		((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
+	int i, j = 0;
+
+	for_each_set_bit(i, iio->active_scan_mask, iio->masklength) {
+		lradc->buffer[j] = readl(lradc->base + LRADC_CH(j));
+		writel(chan_value, lradc->base + LRADC_CH(j));
+		lradc->buffer[j] &= LRADC_CH_VALUE_MASK;
+		lradc->buffer[j] /= LRADC_DELAY_TIMER_LOOP;
+		j++;
+	}
+
+	if (iio->scan_timestamp) {
+		s64 *timestamp = (s64 *)((u8 *)lradc->buffer +
+					ALIGN(j, sizeof(s64)));
+		*timestamp = pf->timestamp;
+	}
+
+	iio_push_to_buffer(buffer, (u8 *)lradc->buffer);
+
+	iio_trigger_notify_done(iio->trig);
+
+	return IRQ_HANDLED;
+}
+
+static int mxs_lradc_configure_trigger(struct iio_trigger *trig, bool state)
+{
+	struct iio_dev *iio = trig->private_data;
+	struct mxs_lradc *lradc = iio_priv(iio);
+	const uint32_t st = state ? STMP_OFFSET_REG_SET : STMP_OFFSET_REG_CLR;
+
+	writel(LRADC_DELAY_KICK, lradc->base + LRADC_DELAY(0) + st);
+
+	return 0;
+}
+
+static const struct iio_trigger_ops mxs_lradc_trigger_ops = {
+	.owner = THIS_MODULE,
+	.set_trigger_state = &mxs_lradc_configure_trigger,
+};
+
+static int mxs_lradc_trigger_init(struct iio_dev *iio)
+{
+	int ret;
+	struct iio_trigger *trig;
+
+	trig = iio_trigger_alloc("%s-dev%i", iio->name, iio->id);
+	if (trig == NULL)
+		return -ENOMEM;
+
+	trig->dev.parent = iio->dev.parent;
+	trig->private_data = iio;
+	trig->ops = &mxs_lradc_trigger_ops;
+
+	ret = iio_trigger_register(trig);
+	if (ret) {
+		iio_trigger_free(trig);
+		return ret;
+	}
+
+	iio->trig = trig;
+
+	return 0;
+}
+
+static void mxs_lradc_trigger_remove(struct iio_dev *iio)
+{
+	iio_trigger_unregister(iio->trig);
+	iio_trigger_free(iio->trig);
+}
+
+static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
+{
+	struct mxs_lradc *lradc = iio_priv(iio);
+	struct iio_buffer *buffer = iio->buffer;
+	int ret = 0, chan, ofs = 0, enable = 0;
+	uint32_t ctrl4 = 0;
+	uint32_t ctrl1_irq = 0;
+	const uint32_t chan_value = LRADC_CH_ACCUMULATE |
+		((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
+	const int len = bitmap_weight(buffer->scan_mask, LRADC_MAX_TOTAL_CHANS);
+
+	if (!len)
+		return -EINVAL;
+
+	/*
+	 * Lock the driver so raw access can not be done during buffered
+	 * operation. This simplifies the code a lot.
+	 */
+	ret = mutex_trylock(&lradc->lock);
+	if (!ret)
+		return -EBUSY;
+
+	lradc->buffer = kmalloc(len * sizeof(*lradc->buffer), GFP_KERNEL);
+	if (!lradc->buffer) {
+		ret = -ENOMEM;
+		goto err_mem;
+	}
+
+	ret = iio_sw_buffer_preenable(iio);
+	if (ret < 0)
+		goto err_buf;
+
+	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+
+	for_each_set_bit(chan, buffer->scan_mask, LRADC_MAX_TOTAL_CHANS) {
+		ctrl4 |= chan << LRADC_CTRL4_LRADCSELECT_OFFSET(ofs);
+		ctrl1_irq |= LRADC_CTRL1_LRADC_IRQ_EN(ofs);
+		writel(chan_value, lradc->base + LRADC_CH(ofs));
+		enable |= 1 << ofs;
+		ofs++;
+	};
+
+	writel(LRADC_DELAY_TRIGGER_LRADCS_MASK | LRADC_DELAY_KICK,
+		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_CLR);
+
+	writel(ctrl4, lradc->base + LRADC_CTRL4);
+	writel(ctrl1_irq, lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_SET);
+
+	writel(enable << LRADC_DELAY_TRIGGER_LRADCS_OFFSET,
+		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_SET);
+
+	return 0;
+
+err_buf:
+	kfree(lradc->buffer);
+err_mem:
+	mutex_unlock(&lradc->lock);
+	return ret;
+}
+
+static int mxs_lradc_buffer_postdisable(struct iio_dev *iio)
+{
+	struct mxs_lradc *lradc = iio_priv(iio);
+
+	writel(LRADC_DELAY_TRIGGER_LRADCS_MASK | LRADC_DELAY_KICK,
+		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_CLR);
+
+	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+
+	kfree(lradc->buffer);
+	mutex_unlock(&lradc->lock);
+
+	return 0;
+}
+
+static bool mxs_lradc_validate_scan_mask(struct iio_dev *iio,
+					const unsigned long *mask)
+{
+	const int mw = bitmap_weight(mask, iio->masklength);
+
+	return mw <= LRADC_MAX_MAPPED_CHANS;
+}
+
+static const struct iio_buffer_setup_ops mxs_lradc_buffer_ops = {
+	.preenable = &mxs_lradc_buffer_preenable,
+	.postenable = &iio_triggered_buffer_postenable,
+	.predisable = &iio_triggered_buffer_predisable,
+	.postdisable = &mxs_lradc_buffer_postdisable,
+	.validate_scan_mask = &mxs_lradc_validate_scan_mask,
+};
+
+/*
+ * Driver initialization
+ */
+
+#define MXS_ADC_CHAN(idx, chan_type) {				\
+	.type = (chan_type),					\
+	.indexed = 1,						\
+	.scan_index = (idx),					\
+	.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,		\
+	.channel = (idx),					\
+	.scan_type = {						\
+		.sign = 'u',					\
+		.realbits = 18,					\
+		.storagebits = 32,				\
+	},							\
+}
+
+static const struct iio_chan_spec mxs_lradc_chan_spec[] = {
+	MXS_ADC_CHAN(0, IIO_VOLTAGE),
+	MXS_ADC_CHAN(1, IIO_VOLTAGE),
+	MXS_ADC_CHAN(2, IIO_VOLTAGE),
+	MXS_ADC_CHAN(3, IIO_VOLTAGE),
+	MXS_ADC_CHAN(4, IIO_VOLTAGE),
+	MXS_ADC_CHAN(5, IIO_VOLTAGE),
+	MXS_ADC_CHAN(6, IIO_VOLTAGE),
+	MXS_ADC_CHAN(7, IIO_VOLTAGE),	/* VBATT */
+	MXS_ADC_CHAN(8, IIO_TEMP),	/* Temp sense 0 */
+	MXS_ADC_CHAN(9, IIO_TEMP),	/* Temp sense 1 */
+	MXS_ADC_CHAN(10, IIO_VOLTAGE),	/* VDDIO */
+	MXS_ADC_CHAN(11, IIO_VOLTAGE),	/* VTH */
+	MXS_ADC_CHAN(12, IIO_VOLTAGE),	/* VDDA */
+	MXS_ADC_CHAN(13, IIO_VOLTAGE),	/* VDDD */
+	MXS_ADC_CHAN(14, IIO_VOLTAGE),	/* VBG */
+	MXS_ADC_CHAN(15, IIO_VOLTAGE),	/* VDD5V */
+};
+
+static void mxs_lradc_hw_init(struct mxs_lradc *lradc)
+{
+	int i;
+	const uint32_t cfg =
+		(LRADC_DELAY_TIMER_PER << LRADC_DELAY_DELAY_OFFSET);
+
+	stmp_reset_block(lradc->base);
+
+	for (i = 0; i < LRADC_MAX_DELAY_CHANS; i++)
+		writel(cfg | (1 << (LRADC_DELAY_TRIGGER_DELAYS_OFFSET + i)),
+			lradc->base + LRADC_DELAY(i));
+
+	/* Start internal temperature sensing. */
+	writel(0, lradc->base + LRADC_CTRL2);
+}
+
+static void mxs_lradc_hw_stop(struct mxs_lradc *lradc)
+{
+	int i;
+
+	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+
+	for (i = 0; i < LRADC_MAX_DELAY_CHANS; i++)
+		writel(0, lradc->base + LRADC_DELAY(i));
+}
+
+static int __devinit mxs_lradc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mxs_lradc *lradc;
+	struct iio_dev *iio;
+	struct resource *iores;
+	int ret = 0;
+	int i;
+
+	/* Allocate the IIO device. */
+	iio = iio_device_alloc(sizeof(*lradc));
+	if (!iio) {
+		dev_err(dev, "Failed to allocate IIO device\n");
+		return -ENOMEM;
+	}
+
+	lradc = iio_priv(iio);
+
+	/* Grab the memory area */
+	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	lradc->dev = &pdev->dev;
+	lradc->base = devm_request_and_ioremap(dev, iores);
+	if (!lradc->base) {
+		ret = -EADDRNOTAVAIL;
+		goto err_addr;
+	}
+
+	/* Grab all IRQ sources */
+	for (i = 0; i < 13; i++) {
+		lradc->irq[i] = platform_get_irq(pdev, i);
+		if (lradc->irq[i] < 0) {
+			ret = -EINVAL;
+			goto err_addr;
+		}
+
+		ret = devm_request_irq(dev, lradc->irq[i],
+					mxs_lradc_handle_irq, 0,
+					mxs_lradc_irq_name[i], iio);
+		if (ret)
+			goto err_addr;
+	}
+
+	platform_set_drvdata(pdev, iio);
+
+	init_completion(&lradc->completion);
+	mutex_init(&lradc->lock);
+
+	iio->name = pdev->name;
+	iio->dev.parent = &pdev->dev;
+	iio->info = &mxs_lradc_iio_info;
+	iio->modes = INDIO_DIRECT_MODE;
+	iio->channels = mxs_lradc_chan_spec;
+	iio->num_channels = ARRAY_SIZE(mxs_lradc_chan_spec);
+
+	ret = iio_triggered_buffer_setup(iio, &iio_pollfunc_store_time,
+				&mxs_lradc_trigger_handler,
+				&mxs_lradc_buffer_ops);
+	if (ret)
+		goto err_addr;
+
+	ret = mxs_lradc_trigger_init(iio);
+	if (ret)
+		goto err_trig;
+
+	/* Register IIO device. */
+	ret = iio_device_register(iio);
+	if (ret) {
+		dev_err(dev, "Failed to register IIO device\n");
+		goto err_dev;
+	}
+
+	/* Configure the hardware. */
+	mxs_lradc_hw_init(lradc);
+
+	return 0;
+
+err_dev:
+	mxs_lradc_trigger_remove(iio);
+err_trig:
+	iio_triggered_buffer_cleanup(iio);
+err_addr:
+	iio_device_free(iio);
+	return ret;
+}
+
+static int __devexit mxs_lradc_remove(struct platform_device *pdev)
+{
+	struct iio_dev *iio = platform_get_drvdata(pdev);
+	struct mxs_lradc *lradc = iio_priv(iio);
+
+	mxs_lradc_hw_stop(lradc);
+
+	iio_device_unregister(iio);
+	iio_triggered_buffer_cleanup(iio);
+	mxs_lradc_trigger_remove(iio);
+	iio_device_free(iio);
+
+	return 0;
+}
+
+static const struct of_device_id mxs_lradc_dt_ids[] = {
+	{ .compatible = "fsl,imx28-lradc", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mxs_lradc_dt_ids);
+
+static struct platform_driver mxs_lradc_driver = {
+	.driver	= {
+		.name	= DRIVER_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = mxs_lradc_dt_ids,
+	},
+	.probe	= mxs_lradc_probe,
+	.remove	= __devexit_p(mxs_lradc_remove),
+};
+
+module_platform_driver(mxs_lradc_driver);
+
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_DESCRIPTION("Freescale i.MX28 LRADC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index 64d630e6fe2..0b83e2e1f41 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -189,7 +189,7 @@ static int spear_read_raw(struct iio_dev *indio_dev,
 	},						\
 }
 
-static struct iio_chan_spec spear_adc_iio_channels[] = {
+static const struct iio_chan_spec spear_adc_iio_channels[] = {
 	SPEAR_ADC_CHAN(0),
 	SPEAR_ADC_CHAN(1),
 	SPEAR_ADC_CHAN(2),
@@ -330,36 +330,30 @@ static int __devinit spear_adc_probe(struct platform_device *pdev)
 		goto errout3;
 	}
 
-	ret = clk_prepare(info->clk);
-	if (ret) {
-		dev_err(dev, "failed preparing clock\n");
-		goto errout4;
-	}
-
-	ret = clk_enable(info->clk);
+	ret = clk_prepare_enable(info->clk);
 	if (ret) {
 		dev_err(dev, "failed enabling clock\n");
-		goto errout5;
+		goto errout4;
 	}
 
 	irq = platform_get_irq(pdev, 0);
 	if ((irq < 0) || (irq >= NR_IRQS)) {
 		dev_err(dev, "failed getting interrupt resource\n");
 		ret = -EINVAL;
-		goto errout6;
+		goto errout5;
 	}
 
 	ret = devm_request_irq(dev, irq, spear_adc_isr, 0, MOD_NAME, info);
 	if (ret < 0) {
 		dev_err(dev, "failed requesting interrupt\n");
-		goto errout6;
+		goto errout5;
 	}
 
 	if (of_property_read_u32(np, "sampling-frequency",
 				 &info->sampling_freq)) {
 		dev_err(dev, "sampling-frequency missing in DT\n");
 		ret = -EINVAL;
-		goto errout6;
+		goto errout5;
 	}
 
 	/*
@@ -389,16 +383,14 @@ static int __devinit spear_adc_probe(struct platform_device *pdev)
 
 	ret = iio_device_register(iodev);
 	if (ret)
-		goto errout6;
+		goto errout5;
 
 	dev_info(dev, "SPEAR ADC driver loaded, IRQ %d\n", irq);
 
 	return 0;
 
-errout6:
-	clk_disable(info->clk);
 errout5:
-	clk_unprepare(info->clk);
+	clk_disable_unprepare(info->clk);
 errout4:
 	clk_put(info->clk);
 errout3:
@@ -416,8 +408,7 @@ static int __devexit spear_adc_remove(struct platform_device *pdev)
 
 	iio_device_unregister(iodev);
 	platform_set_drvdata(pdev, NULL);
-	clk_disable(info->clk);
-	clk_unprepare(info->clk);
+	clk_disable_unprepare(info->clk);
 	clk_put(info->clk);
 	iounmap(info->adc_base_spear6xx);
 	iio_device_free(iodev);
diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c
index 9931e2060e1..87151a7cff0 100644
--- a/drivers/staging/iio/gyro/adis16060_core.c
+++ b/drivers/staging/iio/gyro/adis16060_core.c
@@ -184,7 +184,7 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int adis16060_r_remove(struct spi_device *spi)
+static int __devexit adis16060_r_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
 	iio_device_free(spi_get_drvdata(spi));
@@ -210,7 +210,7 @@ error_ret:
 	return ret;
 }
 
-static int adis16060_w_remove(struct spi_device *spi)
+static int __devexit adis16060_w_remove(struct spi_device *spi)
 {
 	return 0;
 }
diff --git a/drivers/staging/iio/gyro/adis16080_core.c b/drivers/staging/iio/gyro/adis16080_core.c
index 345e4fa778b..a73902573f7 100644
--- a/drivers/staging/iio/gyro/adis16080_core.c
+++ b/drivers/staging/iio/gyro/adis16080_core.c
@@ -177,7 +177,7 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int adis16080_remove(struct spi_device *spi)
+static int __devexit adis16080_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
 	iio_device_free(spi_get_drvdata(spi));
diff --git a/drivers/staging/iio/gyro/adis16130_core.c b/drivers/staging/iio/gyro/adis16130_core.c
index bf61cd0b5bb..fbf96b0b6ee 100644
--- a/drivers/staging/iio/gyro/adis16130_core.c
+++ b/drivers/staging/iio/gyro/adis16130_core.c
@@ -154,7 +154,7 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int adis16130_remove(struct spi_device *spi)
+static int __devexit adis16130_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
 	iio_device_free(spi_get_drvdata(spi));
diff --git a/drivers/staging/iio/gyro/adis16260_core.c b/drivers/staging/iio/gyro/adis16260_core.c
index 93aa431287a..9571c03aa4c 100644
--- a/drivers/staging/iio/gyro/adis16260_core.c
+++ b/drivers/staging/iio/gyro/adis16260_core.c
@@ -195,6 +195,8 @@ static ssize_t adis16260_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 	if (spi_get_device_id(st->us)) {
@@ -698,24 +700,18 @@ error_ret:
 	return ret;
 }
 
-static int adis16260_remove(struct spi_device *spi)
+static int __devexit adis16260_remove(struct spi_device *spi)
 {
-	int ret;
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
 	iio_device_unregister(indio_dev);
-
-	ret = adis16260_stop_device(indio_dev);
-	if (ret)
-		goto err_ret;
-
+	adis16260_stop_device(indio_dev);
 	adis16260_remove_trigger(indio_dev);
 	iio_buffer_unregister(indio_dev);
 	adis16260_unconfigure_ring(indio_dev);
 	iio_device_free(indio_dev);
 
-err_ret:
-	return ret;
+	return 0;
 }
 
 /*
diff --git a/drivers/staging/iio/gyro/adis16260_ring.c b/drivers/staging/iio/gyro/adis16260_ring.c
index eeee8e760e6..e294cb49736 100644
--- a/drivers/staging/iio/gyro/adis16260_ring.c
+++ b/drivers/staging/iio/gyro/adis16260_ring.c
@@ -62,7 +62,6 @@ static irqreturn_t adis16260_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct adis16260_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 	int i = 0;
 	s16 *data;
 
@@ -82,7 +81,7 @@ static irqreturn_t adis16260_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
 
-	ring->access->store_to(ring, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/gyro/adxrs450_core.c b/drivers/staging/iio/gyro/adxrs450_core.c
index 6513119b1e9..d93527d1591 100644
--- a/drivers/staging/iio/gyro/adxrs450_core.c
+++ b/drivers/staging/iio/gyro/adxrs450_core.c
@@ -409,7 +409,7 @@ error_ret:
 	return ret;
 }
 
-static int adxrs450_remove(struct spi_device *spi)
+static int __devexit adxrs450_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
 	iio_device_free(spi_get_drvdata(spi));
diff --git a/drivers/staging/iio/iio_dummy_evgen.c b/drivers/staging/iio/iio_dummy_evgen.c
index 0cd4fe916bf..74e24e8aa87 100644
--- a/drivers/staging/iio/iio_dummy_evgen.c
+++ b/drivers/staging/iio/iio_dummy_evgen.c
@@ -216,6 +216,6 @@ static __exit void iio_dummy_evgen_exit(void)
 }
 module_exit(iio_dummy_evgen_exit);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("IIO dummy driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio_hwmon.c b/drivers/staging/iio/iio_hwmon.c
index 27d27ec9521..5d491227e01 100644
--- a/drivers/staging/iio/iio_hwmon.c
+++ b/drivers/staging/iio/iio_hwmon.c
@@ -42,40 +42,17 @@ static ssize_t iio_hwmon_read_val(struct device *dev,
 				  struct device_attribute *attr,
 				  char *buf)
 {
-	long result;
-	int val, ret, scaleint, scalepart;
+	int result;
+	int ret;
 	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
 	struct iio_hwmon_state *state = dev_get_drvdata(dev);
 
-	/*
-	 * No locking between this pair, so theoretically possible
-	 * the scale has changed.
-	 */
-	ret = iio_read_channel_raw(&state->channels[sattr->index],
-				      &val);
+	ret = iio_read_channel_processed(&state->channels[sattr->index],
+					&result);
 	if (ret < 0)
 		return ret;
 
-	ret = iio_read_channel_scale(&state->channels[sattr->index],
-					&scaleint, &scalepart);
-	if (ret < 0)
-		return ret;
-	switch (ret) {
-	case IIO_VAL_INT:
-		result = val * scaleint;
-		break;
-	case IIO_VAL_INT_PLUS_MICRO:
-		result = (s64)val * (s64)scaleint +
-			div_s64((s64)val * (s64)scalepart, 1000000LL);
-		break;
-	case IIO_VAL_INT_PLUS_NANO:
-		result = (s64)val * (s64)scaleint +
-			div_s64((s64)val * (s64)scalepart, 1000000000LL);
-		break;
-	default:
-		return -EINVAL;
-	}
-	return sprintf(buf, "%ld\n", result);
+	return sprintf(buf, "%d\n", result);
 }
 
 static void iio_hwmon_free_attrs(struct iio_hwmon_state *st)
@@ -215,18 +192,8 @@ static struct platform_driver __refdata iio_hwmon_driver = {
 	.remove = __devexit_p(iio_hwmon_remove),
 };
 
-static int iio_inkern_init(void)
-{
-	return platform_driver_register(&iio_hwmon_driver);
-}
-module_init(iio_inkern_init);
-
-static void iio_inkern_exit(void)
-{
-	platform_driver_unregister(&iio_hwmon_driver);
-}
-module_exit(iio_inkern_exit);
+module_platform_driver(iio_hwmon_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("IIO to hwmon driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index 155a49a9da7..dc6c728ea47 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -63,7 +63,7 @@ static const struct iio_dummy_accel_calibscale dummy_scales[] = {
  * This array of structures tells the IIO core about what the device
  * actually provides for a given channel.
  */
-static struct iio_chan_spec iio_dummy_channels[] = {
+static const struct iio_chan_spec iio_dummy_channels[] = {
 	/* indexed ADC channel in_voltage0_raw etc */
 	{
 		.type = IIO_VOLTAGE,
@@ -445,26 +445,20 @@ static int __devinit iio_dummy_probe(int index)
 	if (ret < 0)
 		goto error_free_device;
 
-	/* Configure buffered capture support. */
-	ret = iio_simple_dummy_configure_buffer(indio_dev);
-	if (ret < 0)
-		goto error_unregister_events;
-
 	/*
-	 * Register the channels with the buffer, but avoid the output
-	 * channel being registered by reducing the number of channels by 1.
+	 * Configure buffered capture support and register the channels with the
+	 * buffer, but avoid the output channel being registered by reducing the
+	 * number of channels by 1.
 	 */
-	ret = iio_buffer_register(indio_dev, iio_dummy_channels, 5);
+	ret = iio_simple_dummy_configure_buffer(indio_dev, iio_dummy_channels, 5);
 	if (ret < 0)
-		goto error_unconfigure_buffer;
+		goto error_unregister_events;
 
 	ret = iio_device_register(indio_dev);
 	if (ret < 0)
-		goto error_unregister_buffer;
+		goto error_unconfigure_buffer;
 
 	return 0;
-error_unregister_buffer:
-	iio_buffer_unregister(indio_dev);
 error_unconfigure_buffer:
 	iio_simple_dummy_unconfigure_buffer(indio_dev);
 error_unregister_events:
@@ -499,7 +493,6 @@ static int iio_dummy_remove(int index)
 	/* Device specific code to power down etc */
 
 	/* Buffered capture related cleanup */
-	iio_buffer_unregister(indio_dev);
 	iio_simple_dummy_unconfigure_buffer(indio_dev);
 
 	ret = iio_simple_dummy_events_unregister(indio_dev);
@@ -530,6 +523,7 @@ static __init int iio_dummy_init(void)
 		instances = 1;
 		return -EINVAL;
 	}
+
 	/* Fake a bus */
 	iio_dummy_devs = kcalloc(instances, sizeof(*iio_dummy_devs),
 				 GFP_KERNEL);
@@ -558,6 +552,6 @@ static __exit void iio_dummy_exit(void)
 }
 module_exit(iio_dummy_exit);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("IIO dummy driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio_simple_dummy.h b/drivers/staging/iio/iio_simple_dummy.h
index 53975d916fc..c9e8702caca 100644
--- a/drivers/staging/iio/iio_simple_dummy.h
+++ b/drivers/staging/iio/iio_simple_dummy.h
@@ -95,10 +95,12 @@ enum iio_simple_dummy_scan_elements {
 };
 
 #ifdef CONFIG_IIO_SIMPLE_DUMMY_BUFFER
-int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev);
+int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *channels, unsigned int num_channels);
 void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev);
 #else
-static inline int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
+static inline int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *channels, unsigned int num_channels)
 {
 	return 0;
 };
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index bd628de472a..697d9700db2 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -87,7 +87,7 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
 			= iio_get_time_ns();
-	buffer->access->store_to(buffer, (u8 *)data, pf->timestamp);
+	iio_push_to_buffer(buffer, (u8 *)data);
 
 	kfree(data);
 
@@ -126,7 +126,8 @@ static const struct iio_buffer_setup_ops iio_simple_dummy_buffer_setup_ops = {
 	.predisable = &iio_triggered_buffer_predisable,
 };
 
-int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
+int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *channels, unsigned int num_channels)
 {
 	int ret;
 	struct iio_buffer *buffer;
@@ -182,8 +183,15 @@ int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
 	 * driven by a trigger.
 	 */
 	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
+
+	ret = iio_buffer_register(indio_dev, channels, num_channels);
+	if (ret)
+		goto error_dealloc_pollfunc;
+
 	return 0;
 
+error_dealloc_pollfunc:
+	iio_dealloc_pollfunc(indio_dev->pollfunc);
 error_free_buffer:
 	iio_kfifo_free(indio_dev->buffer);
 error_ret:
@@ -197,6 +205,7 @@ error_ret:
  */
 void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev)
 {
+	iio_buffer_unregister(indio_dev);
 	iio_dealloc_pollfunc(indio_dev->pollfunc);
 	iio_kfifo_free(indio_dev->buffer);
 }
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index a8e51bc0443..de21d47f33e 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -108,7 +108,7 @@ static struct ad5933_platform_data ad5933_default_pdata  = {
 	.vref_mv = 3300,
 };
 
-static struct iio_chan_spec ad5933_channels[] = {
+static const struct iio_chan_spec ad5933_channels[] = {
 	{
 		.type = IIO_TEMP,
 		.indexed = 1,
@@ -678,7 +678,7 @@ static void ad5933_work(struct work_struct *work)
 			buf[0] = be16_to_cpu(buf[0]);
 		}
 		/* save datum to the ring */
-		ring->access->store_to(ring, (u8 *)buf, iio_get_time_ns());
+		iio_push_to_buffer(ring, (u8 *)buf);
 	} else {
 		/* no data available - try again later */
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
diff --git a/drivers/staging/iio/imu/adis16400.h b/drivers/staging/iio/imu/adis16400.h
index 9dd9f1459a4..d59d7ac856a 100644
--- a/drivers/staging/iio/imu/adis16400.h
+++ b/drivers/staging/iio/imu/adis16400.h
@@ -5,7 +5,7 @@
  *		3d 2.5gauss magnetometers via SPI
  *
  * Copyright (c) 2009 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
- * Copyright (c) 2007 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
  *
  * Loosely based upon lis3l02dq.h
  *
diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c
index 1f4c17779b5..b302c9ba271 100644
--- a/drivers/staging/iio/imu/adis16400_core.c
+++ b/drivers/staging/iio/imu/adis16400_core.c
@@ -5,7 +5,7 @@
  *		3d Magnetometers via SPI
  *
  * Copyright (c) 2009 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
- * Copyright (c) 2007 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
  * Copyright (c) 2011 Analog Devices Inc.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -234,6 +234,8 @@ static ssize_t adis16400_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
@@ -610,7 +612,7 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
 	}
 }
 
-static struct iio_chan_spec adis16400_channels[] = {
+static const struct iio_chan_spec adis16400_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -740,7 +742,7 @@ static struct iio_chan_spec adis16400_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(12)
 };
 
-static struct iio_chan_spec adis16350_channels[] = {
+static const struct iio_chan_spec adis16350_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -865,7 +867,7 @@ static struct iio_chan_spec adis16350_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(11)
 };
 
-static struct iio_chan_spec adis16300_channels[] = {
+static const struct iio_chan_spec adis16300_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -1204,15 +1206,12 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int adis16400_remove(struct spi_device *spi)
+static int __devexit adis16400_remove(struct spi_device *spi)
 {
-	int ret;
 	struct iio_dev *indio_dev =  spi_get_drvdata(spi);
 
 	iio_device_unregister(indio_dev);
-	ret = adis16400_stop_device(indio_dev);
-	if (ret)
-		goto err_ret;
+	adis16400_stop_device(indio_dev);
 
 	adis16400_remove_trigger(indio_dev);
 	iio_buffer_unregister(indio_dev);
@@ -1220,9 +1219,6 @@ static int adis16400_remove(struct spi_device *spi)
 	iio_device_free(indio_dev);
 
 	return 0;
-
-err_ret:
-	return ret;
 }
 
 static const struct spi_device_id adis16400_id[] = {
diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c
index beec650ddbd..260bdd1a468 100644
--- a/drivers/staging/iio/imu/adis16400_ring.c
+++ b/drivers/staging/iio/imu/adis16400_ring.c
@@ -150,7 +150,7 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
 	/* Guaranteed to be aligned with 8 byte boundary */
 	if (ring->scan_timestamp)
 		*((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp;
-	ring->access->store_to(indio_dev->buffer, (u8 *) data, pf->timestamp);
+	iio_push_to_buffer(ring, (u8 *) data);
 
 done:
 	kfree(data);
diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c
index 31d22f5591c..6ee5567d981 100644
--- a/drivers/staging/iio/light/isl29018.c
+++ b/drivers/staging/iio/light/isl29018.c
@@ -63,6 +63,7 @@ struct isl29018_chip {
 	struct regmap		*regmap;
 	struct mutex		lock;
 	unsigned int		lux_scale;
+	unsigned int		lux_uscale;
 	unsigned int		range;
 	unsigned int		adc_bit;
 	int			prox_scheme;
@@ -145,13 +146,22 @@ static int isl29018_read_sensor_input(struct isl29018_chip *chip, int mode)
 static int isl29018_read_lux(struct isl29018_chip *chip, int *lux)
 {
 	int lux_data;
+	unsigned int data_x_range, lux_unshifted;
 
 	lux_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_ALS_ONCE);
 
 	if (lux_data < 0)
 		return lux_data;
 
-	*lux = (lux_data * chip->range * chip->lux_scale) >> chip->adc_bit;
+	/* To support fractional scaling, separate the unshifted lux
+	 * into two calculations: int scaling and micro-scaling.
+	 * lux_uscale ranges from 0-999999, so about 20 bits.  Split
+	 * the /1,000,000 in two to reduce the risk of over/underflow.
+	 */
+	data_x_range = lux_data * chip->range;
+	lux_unshifted = data_x_range * chip->lux_scale;
+	lux_unshifted += data_x_range / 1000 * chip->lux_uscale / 1000;
+	*lux = lux_unshifted >> chip->adc_bit;
 
 	return 0;
 }
@@ -339,6 +349,8 @@ static int isl29018_write_raw(struct iio_dev *indio_dev,
 	mutex_lock(&chip->lock);
 	if (mask == IIO_CHAN_INFO_CALIBSCALE && chan->type == IIO_LIGHT) {
 		chip->lux_scale = val;
+		/* With no write_raw_get_fmt(), val2 is a MICRO fraction. */
+		chip->lux_uscale = val2;
 		ret = 0;
 	}
 	mutex_unlock(&chip->lock);
@@ -379,7 +391,8 @@ static int isl29018_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_CALIBSCALE:
 		if (chan->type == IIO_LIGHT) {
 			*val = chip->lux_scale;
-			ret = IIO_VAL_INT;
+			*val2 = chip->lux_uscale;
+			ret = IIO_VAL_INT_PLUS_MICRO;
 		}
 		break;
 	default:
diff --git a/drivers/staging/iio/light/tsl2563.c b/drivers/staging/iio/light/tsl2563.c
index 9d740be43a8..954ca2c172c 100644
--- a/drivers/staging/iio/light/tsl2563.c
+++ b/drivers/staging/iio/light/tsl2563.c
@@ -805,7 +805,7 @@ fail1:
 	return err;
 }
 
-static int tsl2563_remove(struct i2c_client *client)
+static int __devexit tsl2563_remove(struct i2c_client *client)
 {
 	struct tsl2563_chip *chip = i2c_get_clientdata(client);
 	struct iio_dev *indio_dev = iio_priv_to_dev(chip);
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 6c3e50f7c0d..10e095486e5 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -1,6 +1,6 @@
 /*  Copyright (C) 2010 Texas Instruments
     Author: Shubhrajyoti Datta <shubhrajyoti@ti.com>
-    Acknowledgement: Jonathan Cameron <jic23@cam.ac.uk> for valuable inputs.
+    Acknowledgement: Jonathan Cameron <jic23@kernel.org> for valuable inputs.
 
     Support for HMC5883 and HMC5883L by Peter Meerwald <pmeerw@pmeerw.net>.
 
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index f04ece7fbc2..8b9eceb66b3 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -425,6 +425,8 @@ static ssize_t ade7753_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
@@ -553,20 +555,15 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int ade7753_remove(struct spi_device *spi)
+static int __devexit ade7753_remove(struct spi_device *spi)
 {
-	int ret;
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
 	iio_device_unregister(indio_dev);
-
-	ret = ade7753_stop_device(&(indio_dev->dev));
-	if (ret)
-		goto err_ret;
-
+	ade7753_stop_device(&indio_dev->dev);
 	iio_device_free(indio_dev);
-err_ret:
-	return ret;
+
+	return 0;
 }
 
 static struct spi_driver ade7753_driver = {
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index 6cee28a5e87..76e0adee96e 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -445,6 +445,8 @@ static ssize_t ade7754_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
@@ -575,21 +577,15 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int ade7754_remove(struct spi_device *spi)
+static int __devexit ade7754_remove(struct spi_device *spi)
 {
-	int ret;
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
 	iio_device_unregister(indio_dev);
-	ret = ade7754_stop_device(&(indio_dev->dev));
-	if (ret)
-		goto err_ret;
-
+	ade7754_stop_device(&indio_dev->dev);
 	iio_device_free(indio_dev);
 
-err_ret:
-	return ret;
-
+	return 0;
 }
 
 static struct spi_driver ade7754_driver = {
diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h
index ec202b4ecfb..1e11ad5ae5a 100644
--- a/drivers/staging/iio/meter/ade7758.h
+++ b/drivers/staging/iio/meter/ade7758.h
@@ -122,7 +122,7 @@ struct ade7758_state {
 	u8			*tx;
 	u8			*rx;
 	struct mutex		buf_lock;
-	struct iio_chan_spec	*ade7758_ring_channels;
+	const struct iio_chan_spec *ade7758_ring_channels;
 	struct spi_transfer	ring_xfer[4];
 	struct spi_message	ring_msg;
 	/*
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 7014a007844..a0fef77d8e5 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -661,7 +661,7 @@ static const struct attribute_group ade7758_attribute_group = {
 	.attrs = ade7758_attributes,
 };
 
-static struct iio_chan_spec ade7758_channels[] = {
+static const struct iio_chan_spec ade7758_channels[] = {
 	{
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
@@ -962,17 +962,13 @@ error_ret:
 	return ret;
 }
 
-static int ade7758_remove(struct spi_device *spi)
+static int __devexit ade7758_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 	struct ade7758_state *st = iio_priv(indio_dev);
-	int ret;
 
 	iio_device_unregister(indio_dev);
-	ret = ade7758_stop_device(&indio_dev->dev);
-	if (ret)
-		goto err_ret;
-
+	ade7758_stop_device(&indio_dev->dev);
 	ade7758_remove_trigger(indio_dev);
 	ade7758_uninitialize_ring(indio_dev);
 	ade7758_unconfigure_ring(indio_dev);
@@ -981,8 +977,7 @@ static int ade7758_remove(struct spi_device *spi)
 
 	iio_device_free(indio_dev);
 
-err_ret:
-	return ret;
+	return 0;
 }
 
 static const struct spi_device_id ade7758_id[] = {
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 1ce10b21f4d..9e49baccf66 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -61,7 +61,6 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
-	struct iio_buffer *ring = indio_dev->buffer;
 	struct ade7758_state *st = iio_priv(indio_dev);
 	s64 dat64[2];
 	u32 *dat32 = (u32 *)dat64;
@@ -74,7 +73,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		dat64[1] = pf->timestamp;
 
-	ring->access->store_to(ring, (u8 *)dat64, pf->timestamp);
+	iio_push_to_buffer(indio_dev->buffer, (u8 *)dat64);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index b3f7e0fa961..cb0707cbc34 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -385,6 +385,8 @@ static ssize_t ade7759_write_frequency(struct device *dev,
 	ret = strict_strtol(buf, 10, &val);
 	if (ret)
 		return ret;
+	if (val == 0)
+		return -EINVAL;
 
 	mutex_lock(&indio_dev->mlock);
 
@@ -497,20 +499,15 @@ error_ret:
 }
 
 /* fixme, confirm ordering in this function */
-static int ade7759_remove(struct spi_device *spi)
+static int __devexit ade7759_remove(struct spi_device *spi)
 {
-	int ret;
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
 	iio_device_unregister(indio_dev);
-	ret = ade7759_stop_device(&(indio_dev->dev));
-	if (ret)
-		goto err_ret;
-
+	ade7759_stop_device(&indio_dev->dev);
 	iio_device_free(indio_dev);
 
-err_ret:
-	return ret;
+	return 0;
 }
 
 static struct spi_driver ade7759_driver = {
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
index 9fb2f8bfca8..7dae0357342 100644
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ b/drivers/staging/iio/meter/ade7854-spi.c
@@ -330,7 +330,7 @@ static int __devinit ade7854_spi_probe(struct spi_device *spi)
 	return 0;
 }
 
-static int ade7854_spi_remove(struct spi_device *spi)
+static int __devexit ade7854_spi_remove(struct spi_device *spi)
 {
 	ade7854_remove(spi_get_drvdata(spi));
 
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index f313859476c..4ba4d05ed42 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -575,7 +575,7 @@ static IIO_DEVICE_ATTR(lot_low_thrd, S_IRUGO | S_IWUSR,
 		       AD2S1210_REG_LOT_LOW_THRD);
 
 
-static struct iio_chan_spec ad2s1210_channels[] = {
+static const struct iio_chan_spec ad2s1210_channels[] = {
 	{
 		.type = IIO_ANGL,
 		.indexed = 1,
diff --git a/drivers/staging/iio/ring_hw.h b/drivers/staging/iio/ring_hw.h
index cad8a2ed9b6..39c14a71586 100644
--- a/drivers/staging/iio/ring_hw.h
+++ b/drivers/staging/iio/ring_hw.h
@@ -5,7 +5,7 @@
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  *
- * Copyright (c) 2009 Jonathan Cameron <jic23@cam.ac.uk>
+ * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
  *
  */
 
diff --git a/drivers/staging/iio/ring_sw.c b/drivers/staging/iio/ring_sw.c
index f61c8fdaab0..3a45f9a52de 100644
--- a/drivers/staging/iio/ring_sw.c
+++ b/drivers/staging/iio/ring_sw.c
@@ -65,7 +65,7 @@ static inline void __iio_free_sw_ring_buffer(struct iio_sw_ring_buffer *ring)
 /* Lock always held if their is a chance this may be called */
 /* Only one of these per ring may run concurrently - enforced by drivers */
 static int iio_store_to_sw_ring(struct iio_sw_ring_buffer *ring,
-				unsigned char *data, s64 timestamp)
+				unsigned char *data)
 {
 	int ret = 0;
 	unsigned char *temp_ptr, *change_test_ptr;
@@ -256,11 +256,10 @@ error_ret:
 }
 
 static int iio_store_to_sw_rb(struct iio_buffer *r,
-			      u8 *data,
-			      s64 timestamp)
+			      u8 *data)
 {
 	struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r);
-	return iio_store_to_sw_ring(ring, data, timestamp);
+	return iio_store_to_sw_ring(ring, data);
 }
 
 static int iio_request_update_sw_rb(struct iio_buffer *r)
diff --git a/drivers/staging/iio/trigger/Kconfig b/drivers/staging/iio/trigger/Kconfig
index b8abf5473dd..7d320755926 100644
--- a/drivers/staging/iio/trigger/Kconfig
+++ b/drivers/staging/iio/trigger/Kconfig
@@ -21,6 +21,8 @@ config IIO_GPIO_TRIGGER
 config IIO_SYSFS_TRIGGER
 	tristate "SYSFS trigger"
 	depends on SYSFS
+	depends on HAVE_IRQ_WORK
+	select IRQ_WORK
 	help
 	  Provides support for using SYSFS entry as IIO triggers.
 	  If unsure, say N (but it's safe to say "Y").
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
index ce6a7b1b886..52062d786f8 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
@@ -14,14 +14,18 @@
 #include <linux/delay.h>
 
 #include <asm/gptimers.h>
+#include <asm/portmux.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/trigger.h>
 
+#include "iio-trig-bfin-timer.h"
+
 struct bfin_timer {
 	unsigned short id, bit;
 	unsigned long irqbit;
 	int irq;
+	int pin;
 };
 
 /*
@@ -30,22 +34,22 @@ struct bfin_timer {
  */
 
 static struct bfin_timer iio_bfin_timer_code[MAX_BLACKFIN_GPTIMERS] = {
-	{TIMER0_id,  TIMER0bit,  TIMER_STATUS_TIMIL0,  IRQ_TIMER0},
-	{TIMER1_id,  TIMER1bit,  TIMER_STATUS_TIMIL1,  IRQ_TIMER1},
-	{TIMER2_id,  TIMER2bit,  TIMER_STATUS_TIMIL2,  IRQ_TIMER2},
+	{TIMER0_id,  TIMER0bit,  TIMER_STATUS_TIMIL0,  IRQ_TIMER0, P_TMR0},
+	{TIMER1_id,  TIMER1bit,  TIMER_STATUS_TIMIL1,  IRQ_TIMER1, P_TMR1},
+	{TIMER2_id,  TIMER2bit,  TIMER_STATUS_TIMIL2,  IRQ_TIMER2, P_TMR2},
 #if (MAX_BLACKFIN_GPTIMERS > 3)
-	{TIMER3_id,  TIMER3bit,  TIMER_STATUS_TIMIL3,  IRQ_TIMER3},
-	{TIMER4_id,  TIMER4bit,  TIMER_STATUS_TIMIL4,  IRQ_TIMER4},
-	{TIMER5_id,  TIMER5bit,  TIMER_STATUS_TIMIL5,  IRQ_TIMER5},
-	{TIMER6_id,  TIMER6bit,  TIMER_STATUS_TIMIL6,  IRQ_TIMER6},
-	{TIMER7_id,  TIMER7bit,  TIMER_STATUS_TIMIL7,  IRQ_TIMER7},
+	{TIMER3_id,  TIMER3bit,  TIMER_STATUS_TIMIL3,  IRQ_TIMER3, P_TMR3},
+	{TIMER4_id,  TIMER4bit,  TIMER_STATUS_TIMIL4,  IRQ_TIMER4, P_TMR4},
+	{TIMER5_id,  TIMER5bit,  TIMER_STATUS_TIMIL5,  IRQ_TIMER5, P_TMR5},
+	{TIMER6_id,  TIMER6bit,  TIMER_STATUS_TIMIL6,  IRQ_TIMER6, P_TMR6},
+	{TIMER7_id,  TIMER7bit,  TIMER_STATUS_TIMIL7,  IRQ_TIMER7, P_TMR7},
 #endif
 #if (MAX_BLACKFIN_GPTIMERS > 8)
-	{TIMER8_id,  TIMER8bit,  TIMER_STATUS_TIMIL8,  IRQ_TIMER8},
-	{TIMER9_id,  TIMER9bit,  TIMER_STATUS_TIMIL9,  IRQ_TIMER9},
-	{TIMER10_id, TIMER10bit, TIMER_STATUS_TIMIL10, IRQ_TIMER10},
+	{TIMER8_id,  TIMER8bit,  TIMER_STATUS_TIMIL8,  IRQ_TIMER8, P_TMR8},
+	{TIMER9_id,  TIMER9bit,  TIMER_STATUS_TIMIL9,  IRQ_TIMER9, P_TMR9},
+	{TIMER10_id, TIMER10bit, TIMER_STATUS_TIMIL10, IRQ_TIMER10, P_TMR10},
 #if (MAX_BLACKFIN_GPTIMERS > 11)
-	{TIMER11_id, TIMER11bit, TIMER_STATUS_TIMIL11, IRQ_TIMER11},
+	{TIMER11_id, TIMER11bit, TIMER_STATUS_TIMIL11, IRQ_TIMER11, P_TMR11},
 #endif
 #endif
 };
@@ -54,15 +58,33 @@ struct bfin_tmr_state {
 	struct iio_trigger *trig;
 	struct bfin_timer *t;
 	unsigned timer_num;
+	bool output_enable;
+	unsigned int duty;
 	int irq;
 };
 
+static int iio_bfin_tmr_set_state(struct iio_trigger *trig, bool state)
+{
+	struct bfin_tmr_state *st = trig->private_data;
+
+	if (get_gptimer_period(st->t->id) == 0)
+		return -EINVAL;
+
+	if (state)
+		enable_gptimers(st->t->bit);
+	else
+		disable_gptimers(st->t->bit);
+
+	return 0;
+}
+
 static ssize_t iio_bfin_tmr_frequency_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct iio_trigger *trig = to_iio_trigger(dev);
 	struct bfin_tmr_state *st = trig->private_data;
-	long val;
+	unsigned long val;
+	bool enabled;
 	int ret;
 
 	ret = strict_strtoul(buf, 10, &val);
@@ -74,20 +96,25 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev,
 		goto error_ret;
 	}
 
-	disable_gptimers(st->t->bit);
+	enabled = get_enabled_gptimers() & st->t->bit;
+
+	if (enabled)
+		disable_gptimers(st->t->bit);
 
 	if (!val)
 		goto error_ret;
 
 	val = get_sclk() / val;
-	if (val <= 4) {
+	if (val <= 4 || val <= st->duty) {
 		ret = -EINVAL;
 		goto error_ret;
 	}
 
 	set_gptimer_period(st->t->id, val);
-	set_gptimer_pwidth(st->t->id, 1);
-	enable_gptimers(st->t->bit);
+	set_gptimer_pwidth(st->t->id, val - st->duty);
+
+	if (enabled)
+		enable_gptimers(st->t->bit);
 
 error_ret:
 	return ret ? ret : count;
@@ -99,9 +126,15 @@ static ssize_t iio_bfin_tmr_frequency_show(struct device *dev,
 {
 	struct iio_trigger *trig = to_iio_trigger(dev);
 	struct bfin_tmr_state *st = trig->private_data;
+	unsigned int period = get_gptimer_period(st->t->id);
+	unsigned long val;
+
+	if (period == 0)
+		val = 0;
+	else
+		val = get_sclk() / get_gptimer_period(st->t->id);
 
-	return sprintf(buf, "%lu\n",
-			get_sclk() / get_gptimer_period(st->t->id));
+	return sprintf(buf, "%lu\n", val);
 }
 
 static DEVICE_ATTR(frequency, S_IRUGO | S_IWUSR, iio_bfin_tmr_frequency_show,
@@ -121,7 +154,6 @@ static const struct attribute_group *iio_bfin_tmr_trigger_attr_groups[] = {
 	NULL
 };
 
-
 static irqreturn_t iio_bfin_tmr_trigger_isr(int irq, void *devid)
 {
 	struct bfin_tmr_state *st = devid;
@@ -145,11 +177,14 @@ static int iio_bfin_tmr_get_number(int irq)
 
 static const struct iio_trigger_ops iio_bfin_tmr_trigger_ops = {
 	.owner = THIS_MODULE,
+	.set_trigger_state = iio_bfin_tmr_set_state,
 };
 
 static int __devinit iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 {
+	struct iio_bfin_timer_trigger_pdata *pdata = pdev->dev.platform_data;
 	struct bfin_tmr_state *st;
+	unsigned int config;
 	int ret;
 
 	st = kzalloc(sizeof(*st), GFP_KERNEL);
@@ -193,13 +228,43 @@ static int __devinit iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 		goto out4;
 	}
 
-	set_gptimer_config(st->t->id, OUT_DIS | PWM_OUT | PERIOD_CNT | IRQ_ENA);
+	config = PWM_OUT | PERIOD_CNT | IRQ_ENA;
+
+	if (pdata && pdata->output_enable) {
+		unsigned long long val;
+
+		st->output_enable = true;
+
+		ret = peripheral_request(st->t->pin, st->trig->name);
+		if (ret)
+			goto out_free_irq;
+
+		val = (unsigned long long)get_sclk() * pdata->duty_ns;
+		do_div(val, NSEC_PER_SEC);
+		st->duty = val;
+
+		/**
+		 * The interrupt will be generated at the end of the period,
+		 * since we want the interrupt to be generated at end of the
+		 * pulse we invert both polarity and duty cycle, so that the
+		 * pulse will be generated directly before the interrupt.
+		 */
+		if (pdata->active_low)
+			config |= PULSE_HI;
+	} else {
+		st->duty = 1;
+		config |= OUT_DIS;
+	}
+
+	set_gptimer_config(st->t->id, config);
 
 	dev_info(&pdev->dev, "iio trigger Blackfin TMR%d, IRQ-%d",
 		 st->timer_num, st->irq);
 	platform_set_drvdata(pdev, st);
 
 	return 0;
+out_free_irq:
+	free_irq(st->irq, st);
 out4:
 	iio_trigger_unregister(st->trig);
 out2:
@@ -215,6 +280,8 @@ static int __devexit iio_bfin_tmr_trigger_remove(struct platform_device *pdev)
 	struct bfin_tmr_state *st = platform_get_drvdata(pdev);
 
 	disable_gptimers(st->t->bit);
+	if (st->output_enable)
+		peripheral_free(st->t->pin);
 	free_irq(st->irq, st);
 	iio_trigger_unregister(st->trig);
 	iio_trigger_put(st->trig);
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.h b/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
new file mode 100644
index 00000000000..c07321f8d94
--- /dev/null
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
@@ -0,0 +1,24 @@
+#ifndef __IIO_BFIN_TIMER_TRIGGER_H__
+#define __IIO_BFIN_TIMER_TRIGGER_H__
+
+/**
+ * struct iio_bfin_timer_trigger_pdata - timer trigger platform data
+ * @output_enable: Enable external trigger pulse generation.
+ * @active_low: Whether the trigger pulse is active low.
+ * @duty_ns: Length of the trigger pulse in nanoseconds.
+ *
+ * This struct is used to configure the output pulse generation of the blackfin
+ * timer trigger. If output_enable is set to true an external trigger signal
+ * will generated on the pin corresponding to the timer. This is useful for
+ * converters which needs an external signal to start conversion. active_low and
+ * duty_ns are used to configure the type of the trigger pulse. If output_enable
+ * is set to false no external trigger pulse will be generated and active_low
+ * and duty_ns are ignored.
+ **/
+struct iio_bfin_timer_trigger_pdata {
+	bool output_enable;
+	bool active_low;
+	unsigned int duty_ns;
+};
+
+#endif
diff --git a/drivers/staging/iio/trigger/iio-trig-gpio.c b/drivers/staging/iio/trigger/iio-trig-gpio.c
index 90b26846fc6..5ff4d7fa20f 100644
--- a/drivers/staging/iio/trigger/iio-trig-gpio.c
+++ b/drivers/staging/iio/trigger/iio-trig-gpio.c
@@ -51,7 +51,7 @@ static const struct iio_trigger_ops iio_gpio_trigger_ops = {
 	.owner = THIS_MODULE,
 };
 
-static int iio_gpio_trigger_probe(struct platform_device *pdev)
+static int __devinit iio_gpio_trigger_probe(struct platform_device *pdev)
 {
 	struct iio_gpio_trigger_info *trig_info;
 	struct iio_trigger *trig, *trig2;
@@ -130,7 +130,7 @@ error_free_completed_registrations:
 	return ret;
 }
 
-static int iio_gpio_trigger_remove(struct platform_device *pdev)
+static int __devexit iio_gpio_trigger_remove(struct platform_device *pdev)
 {
 	struct iio_trigger *trig, *trig2;
 	struct iio_gpio_trigger_info *trig_info;
@@ -153,7 +153,7 @@ static int iio_gpio_trigger_remove(struct platform_device *pdev)
 
 static struct platform_driver iio_gpio_trigger_driver = {
 	.probe = iio_gpio_trigger_probe,
-	.remove = iio_gpio_trigger_remove,
+	.remove = __devexit_p(iio_gpio_trigger_remove),
 	.driver = {
 		.name = "iio_gpio_trigger",
 		.owner = THIS_MODULE,
@@ -162,6 +162,6 @@ static struct platform_driver iio_gpio_trigger_driver = {
 
 module_platform_driver(iio_gpio_trigger_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("Example gpio trigger for the iio subsystem");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
index 4ceaa18ef9f..a3de76d70cd 100644
--- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
+++ b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
@@ -101,7 +101,7 @@ static const struct iio_trigger_ops iio_prtc_trigger_ops = {
 	.set_trigger_state = &iio_trig_periodic_rtc_set_state,
 };
 
-static int iio_trig_periodic_rtc_probe(struct platform_device *dev)
+static int __devinit iio_trig_periodic_rtc_probe(struct platform_device *dev)
 {
 	char **pdata = dev->dev.platform_data;
 	struct iio_prtc_trigger_info *trig_info;
@@ -167,7 +167,7 @@ error_free_completed_registrations:
 	return ret;
 }
 
-static int iio_trig_periodic_rtc_remove(struct platform_device *dev)
+static int __devexit iio_trig_periodic_rtc_remove(struct platform_device *dev)
 {
 	struct iio_trigger *trig, *trig2;
 	struct iio_prtc_trigger_info *trig_info;
@@ -188,7 +188,7 @@ static int iio_trig_periodic_rtc_remove(struct platform_device *dev)
 
 static struct platform_driver iio_trig_periodic_rtc_driver = {
 	.probe = iio_trig_periodic_rtc_probe,
-	.remove = iio_trig_periodic_rtc_remove,
+	.remove = __devexit_p(iio_trig_periodic_rtc_remove),
 	.driver = {
 		.name = "iio_prtc_trigger",
 		.owner = THIS_MODULE,
@@ -197,6 +197,6 @@ static struct platform_driver iio_trig_periodic_rtc_driver = {
 
 module_platform_driver(iio_trig_periodic_rtc_driver);
 
-MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
+MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
 MODULE_DESCRIPTION("Periodic realtime clock  trigger for the iio subsystem");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/trigger/iio-trig-sysfs.c b/drivers/staging/iio/trigger/iio-trig-sysfs.c
index fee47464810..3bac97224bf 100644
--- a/drivers/staging/iio/trigger/iio-trig-sysfs.c
+++ b/drivers/staging/iio/trigger/iio-trig-sysfs.c
@@ -10,12 +10,14 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/list.h>
+#include <linux/irq_work.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/trigger.h>
 
 struct iio_sysfs_trig {
 	struct iio_trigger *trig;
+	struct irq_work work;
 	int id;
 	struct list_head l;
 };
@@ -89,11 +91,21 @@ static struct device iio_sysfs_trig_dev = {
 	.release = &iio_trigger_sysfs_release,
 };
 
+static void iio_sysfs_trigger_work(struct irq_work *work)
+{
+	struct iio_sysfs_trig *trig = container_of(work, struct iio_sysfs_trig,
+							work);
+
+	iio_trigger_poll(trig->trig, 0);
+}
+
 static ssize_t iio_sysfs_trigger_poll(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct iio_trigger *trig = to_iio_trigger(dev);
-	iio_trigger_poll_chained(trig, 0);
+	struct iio_sysfs_trig *sysfs_trig = trig->private_data;
+
+	irq_work_queue(&sysfs_trig->work);
 
 	return count;
 }
@@ -148,6 +160,9 @@ static int iio_sysfs_trigger_probe(int id)
 	t->trig->dev.groups = iio_sysfs_trigger_attr_groups;
 	t->trig->ops = &iio_sysfs_trigger_ops;
 	t->trig->dev.parent = &iio_sysfs_trig_dev;
+	t->trig->private_data = t;
+
+	init_irq_work(&t->work, iio_sysfs_trigger_work);
 
 	ret = iio_trigger_register(t->trig);
 	if (ret)
diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
new file mode 100644
index 00000000000..14b4449df23
--- /dev/null
+++ b/drivers/staging/imx-drm/Kconfig
@@ -0,0 +1,35 @@
+config DRM_IMX
+	tristate "DRM Support for Freescale i.MX"
+	select DRM_KMS_HELPER
+	select DRM_GEM_CMA_HELPER
+	select DRM_KMS_CMA_HELPER
+	depends on DRM && ARCH_MXC
+	help
+	  enable i.MX graphics support
+
+config DRM_IMX_FB_HELPER
+	tristate "provide legacy framebuffer /dev/fb0"
+	select DRM_KMS_CMA_HELPER
+	depends on DRM_IMX
+	help
+	  The DRM framework can provide a legacy /dev/fb0 framebuffer
+	  for your device. This is necessary to get a framebuffer console
+	  and also for appplications using the legacy framebuffer API
+
+config DRM_IMX_PARALLEL_DISPLAY
+	tristate "Support for parallel displays"
+	depends on DRM_IMX
+
+config DRM_IMX_IPUV3_CORE
+	tristate "IPUv3 core support"
+	depends on DRM_IMX
+	help
+	  Choose this if you have a i.MX5/6 system and want
+	  to use the IPU. This option only enables IPU base
+	  support.
+
+config DRM_IMX_IPUV3
+	tristate "DRM Support for i.MX IPUv3"
+	depends on DRM_IMX
+	help
+	  Choose this if you have a i.MX5 or i.MX6 processor.
diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
new file mode 100644
index 00000000000..83a9056546e
--- /dev/null
+++ b/drivers/staging/imx-drm/Makefile
@@ -0,0 +1,9 @@
+
+imxdrm-objs := imx-drm-core.o imx-fb.o
+
+obj-$(CONFIG_DRM_IMX) += imxdrm.o
+
+obj-$(CONFIG_DRM_IMX_PARALLEL_DISPLAY) += parallel-display.o
+obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o
+obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/
+obj-$(CONFIG_DRM_IMX_IPUV3)	+= ipuv3-crtc.o
diff --git a/drivers/staging/imx-drm/TODO b/drivers/staging/imx-drm/TODO
new file mode 100644
index 00000000000..e52adc44e60
--- /dev/null
+++ b/drivers/staging/imx-drm/TODO
@@ -0,0 +1,22 @@
+TODO:
+- get DRM Maintainer review for this code
+- Factor out more code to common helper functions
+- decide where to put the base driver. It is not specific to a subsystem
+  and would be used by DRM/KMS and media/V4L2
+- convert irq driver to irq_domain_add_linear
+
+Missing features (not necessarily for moving out of staging):
+
+- Add KMS plane support for CRTC driver
+- Add LDB (LVDS Display Bridge) support
+- Add i.MX6 HDMI support
+- Add support for IC (Image converter)
+- Add support for CSI (CMOS Sensor interface)
+- Add support for VDIC (Video Deinterlacer)
+
+Many work-in-progress patches for the above features exist. Contact
+Sascha Hauer <kernel@pengutronix.de> if you are interested in working
+on a specific feature.
+
+Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org> and
+Sascha Hauer <kernel@pengutronix.de>
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
new file mode 100644
index 00000000000..1913199ba16
--- /dev/null
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -0,0 +1,884 @@
+/*
+ * Freescale i.MX drm driver
+ *
+ * Copyright (C) 2011 Sascha Hauer, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+
+#include "imx-drm.h"
+
+#define MAX_CRTC	4
+
+struct crtc_cookie {
+	void *cookie;
+	int id;
+	struct list_head list;
+};
+
+struct imx_drm_device {
+	struct drm_device			*drm;
+	struct device				*dev;
+	struct list_head			crtc_list;
+	struct list_head			encoder_list;
+	struct list_head			connector_list;
+	struct mutex				mutex;
+	int					references;
+	int					pipes;
+	struct drm_fbdev_cma			*fbhelper;
+};
+
+struct imx_drm_crtc {
+	struct drm_crtc				*crtc;
+	struct list_head			list;
+	struct imx_drm_device			*imxdrm;
+	int					pipe;
+	struct imx_drm_crtc_helper_funcs	imx_drm_helper_funcs;
+	struct module				*owner;
+	struct crtc_cookie			cookie;
+};
+
+struct imx_drm_encoder {
+	struct drm_encoder			*encoder;
+	struct list_head			list;
+	struct module				*owner;
+	struct list_head			possible_crtcs;
+};
+
+struct imx_drm_connector {
+	struct drm_connector			*connector;
+	struct list_head			list;
+	struct module				*owner;
+};
+
+static int imx_drm_driver_firstopen(struct drm_device *drm)
+{
+	if (!imx_drm_device_get())
+		return -EINVAL;
+
+	return 0;
+}
+
+static void imx_drm_driver_lastclose(struct drm_device *drm)
+{
+	struct imx_drm_device *imxdrm = drm->dev_private;
+
+	if (imxdrm->fbhelper)
+		drm_fbdev_cma_restore_mode(imxdrm->fbhelper);
+
+	imx_drm_device_put();
+}
+
+static int imx_drm_driver_unload(struct drm_device *drm)
+{
+	struct imx_drm_device *imxdrm = drm->dev_private;
+
+	drm_mode_config_cleanup(imxdrm->drm);
+	drm_kms_helper_poll_fini(imxdrm->drm);
+
+	return 0;
+}
+
+/*
+ * We don't care at all for crtc numbers, but the core expects the
+ * crtcs to be numbered
+ */
+static struct imx_drm_crtc *imx_drm_crtc_by_num(struct imx_drm_device *imxdrm,
+		int num)
+{
+	struct imx_drm_crtc *imx_drm_crtc;
+
+	list_for_each_entry(imx_drm_crtc, &imxdrm->crtc_list, list)
+		if (imx_drm_crtc->pipe == num)
+			return imx_drm_crtc;
+	return NULL;
+}
+
+int imx_drm_crtc_panel_format(struct drm_crtc *crtc, u32 encoder_type,
+		u32 interface_pix_fmt)
+{
+	struct imx_drm_device *imxdrm = crtc->dev->dev_private;
+	struct imx_drm_crtc *imx_crtc;
+	struct imx_drm_crtc_helper_funcs *helper;
+
+	mutex_lock(&imxdrm->mutex);
+
+	list_for_each_entry(imx_crtc, &imxdrm->crtc_list, list)
+		if (imx_crtc->crtc == crtc)
+			goto found;
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return -EINVAL;
+found:
+	mutex_unlock(&imxdrm->mutex);
+
+	helper = &imx_crtc->imx_drm_helper_funcs;
+	if (helper->set_interface_pix_fmt)
+		return helper->set_interface_pix_fmt(crtc,
+				encoder_type, interface_pix_fmt);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_drm_crtc_panel_format);
+
+int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc)
+{
+	return drm_vblank_get(imx_drm_crtc->imxdrm->drm, imx_drm_crtc->pipe);
+}
+EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get);
+
+void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc)
+{
+	drm_vblank_put(imx_drm_crtc->imxdrm->drm, imx_drm_crtc->pipe);
+}
+EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put);
+
+void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc)
+{
+	drm_handle_vblank(imx_drm_crtc->imxdrm->drm, imx_drm_crtc->pipe);
+}
+EXPORT_SYMBOL_GPL(imx_drm_handle_vblank);
+
+static int imx_drm_enable_vblank(struct drm_device *drm, int crtc)
+{
+	struct imx_drm_device *imxdrm = drm->dev_private;
+	struct imx_drm_crtc *imx_drm_crtc;
+	int ret;
+
+	imx_drm_crtc = imx_drm_crtc_by_num(imxdrm, crtc);
+	if (!imx_drm_crtc)
+		return -EINVAL;
+
+	if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank)
+		return -ENOSYS;
+
+	ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank(
+			imx_drm_crtc->crtc);
+
+	return ret;
+}
+
+static void imx_drm_disable_vblank(struct drm_device *drm, int crtc)
+{
+	struct imx_drm_device *imxdrm = drm->dev_private;
+	struct imx_drm_crtc *imx_drm_crtc;
+
+	imx_drm_crtc = imx_drm_crtc_by_num(imxdrm, crtc);
+	if (!imx_drm_crtc)
+		return;
+
+	if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank)
+		return;
+
+	imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc);
+}
+
+static const struct file_operations imx_drm_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_gem_cma_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+	.llseek = noop_llseek,
+};
+
+static struct imx_drm_device *imx_drm_device;
+
+static struct imx_drm_device *__imx_drm_device(void)
+{
+	return imx_drm_device;
+}
+
+struct drm_device *imx_drm_device_get(void)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_encoder *enc;
+	struct imx_drm_connector *con;
+	struct imx_drm_crtc *crtc;
+
+	mutex_lock(&imxdrm->mutex);
+
+	list_for_each_entry(enc, &imxdrm->encoder_list, list) {
+		if (!try_module_get(enc->owner)) {
+			dev_err(imxdrm->dev, "could not get module %s\n",
+					module_name(enc->owner));
+			goto unwind_enc;
+		}
+	}
+
+	list_for_each_entry(con, &imxdrm->connector_list, list) {
+		if (!try_module_get(con->owner)) {
+			dev_err(imxdrm->dev, "could not get module %s\n",
+					module_name(con->owner));
+			goto unwind_con;
+		}
+	}
+
+	list_for_each_entry(crtc, &imxdrm->crtc_list, list) {
+		if (!try_module_get(crtc->owner)) {
+			dev_err(imxdrm->dev, "could not get module %s\n",
+					module_name(crtc->owner));
+			goto unwind_crtc;
+		}
+	}
+
+	imxdrm->references++;
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return imxdrm->drm;
+
+unwind_crtc:
+	list_for_each_entry_continue_reverse(crtc, &imxdrm->crtc_list, list)
+		module_put(crtc->owner);
+unwind_con:
+	list_for_each_entry_continue_reverse(con, &imxdrm->connector_list, list)
+		module_put(con->owner);
+unwind_enc:
+	list_for_each_entry_continue_reverse(enc, &imxdrm->encoder_list, list)
+		module_put(enc->owner);
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return NULL;
+
+}
+EXPORT_SYMBOL_GPL(imx_drm_device_get);
+
+void imx_drm_device_put(void)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_encoder *enc;
+	struct imx_drm_connector *con;
+	struct imx_drm_crtc *crtc;
+
+	mutex_lock(&imxdrm->mutex);
+
+	list_for_each_entry(crtc, &imxdrm->crtc_list, list)
+		module_put(crtc->owner);
+
+	list_for_each_entry(con, &imxdrm->connector_list, list)
+		module_put(con->owner);
+
+	list_for_each_entry(enc, &imxdrm->encoder_list, list)
+		module_put(enc->owner);
+
+	imxdrm->references--;
+
+	mutex_unlock(&imxdrm->mutex);
+}
+EXPORT_SYMBOL_GPL(imx_drm_device_put);
+
+static int drm_mode_group_reinit(struct drm_device *dev)
+{
+	struct drm_mode_group *group = &dev->primary->mode_group;
+	uint32_t *id_list = group->id_list;
+	int ret;
+
+	ret = drm_mode_group_init_legacy_group(dev, group);
+	if (ret < 0)
+		return ret;
+
+	kfree(id_list);
+	return 0;
+}
+
+/*
+ * register an encoder to the drm core
+ */
+static int imx_drm_encoder_register(struct imx_drm_encoder *imx_drm_encoder)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+
+	INIT_LIST_HEAD(&imx_drm_encoder->possible_crtcs);
+
+	drm_encoder_init(imxdrm->drm, imx_drm_encoder->encoder,
+			imx_drm_encoder->encoder->funcs,
+			imx_drm_encoder->encoder->encoder_type);
+
+	drm_mode_group_reinit(imxdrm->drm);
+
+	return 0;
+}
+
+/*
+ * unregister an encoder from the drm core
+ */
+static void imx_drm_encoder_unregister(struct imx_drm_encoder
+		*imx_drm_encoder)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+
+	drm_encoder_cleanup(imx_drm_encoder->encoder);
+
+	drm_mode_group_reinit(imxdrm->drm);
+}
+
+/*
+ * register a connector to the drm core
+ */
+static int imx_drm_connector_register(
+		struct imx_drm_connector *imx_drm_connector)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+
+	drm_connector_init(imxdrm->drm, imx_drm_connector->connector,
+			imx_drm_connector->connector->funcs,
+			imx_drm_connector->connector->connector_type);
+	drm_mode_group_reinit(imxdrm->drm);
+
+	return drm_sysfs_connector_add(imx_drm_connector->connector);
+}
+
+/*
+ * unregister a connector from the drm core
+ */
+static void imx_drm_connector_unregister(
+		struct imx_drm_connector *imx_drm_connector)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+
+	drm_sysfs_connector_remove(imx_drm_connector->connector);
+	drm_connector_cleanup(imx_drm_connector->connector);
+
+	drm_mode_group_reinit(imxdrm->drm);
+}
+
+/*
+ * register a crtc to the drm core
+ */
+static int imx_drm_crtc_register(struct imx_drm_crtc *imx_drm_crtc)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	int ret;
+
+	drm_crtc_init(imxdrm->drm, imx_drm_crtc->crtc,
+			imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs);
+	ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256);
+	if (ret)
+		return ret;
+
+	drm_crtc_helper_add(imx_drm_crtc->crtc,
+			imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs);
+
+	drm_mode_group_reinit(imxdrm->drm);
+
+	return 0;
+}
+
+/*
+ * Called by the CRTC driver when all CRTCs are registered. This
+ * puts all the pieces together and initializes the driver.
+ * Once this is called no more CRTCs can be registered since
+ * the drm core has hardcoded the number of crtcs in several
+ * places.
+ */
+static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	int ret;
+
+	imxdrm->drm = drm;
+
+	drm->dev_private = imxdrm;
+
+	/*
+	 * enable drm irq mode.
+	 * - with irq_enabled = 1, we can use the vblank feature.
+	 *
+	 * P.S. note that we wouldn't use drm irq handler but
+	 *      just specific driver own one instead because
+	 *      drm framework supports only one irq handler and
+	 *      drivers can well take care of their interrupts
+	 */
+	drm->irq_enabled = 1;
+
+	drm_mode_config_init(drm);
+	imx_drm_mode_config_init(drm);
+
+	mutex_lock(&imxdrm->mutex);
+
+	drm_kms_helper_poll_init(imxdrm->drm);
+
+	/* setup the grouping for the legacy output */
+	ret = drm_mode_group_init_legacy_group(imxdrm->drm,
+			&imxdrm->drm->primary->mode_group);
+	if (ret)
+		goto err_init;
+
+	ret = drm_vblank_init(imxdrm->drm, MAX_CRTC);
+	if (ret)
+		goto err_init;
+
+	/*
+	 * with vblank_disable_allowed = 1, vblank interrupt will be disabled
+	 * by drm timer once a current process gives up ownership of
+	 * vblank event.(after drm_vblank_put function is called)
+	 */
+	imxdrm->drm->vblank_disable_allowed = 1;
+
+	ret = 0;
+
+err_init:
+	mutex_unlock(&imxdrm->mutex);
+
+	return ret;
+}
+
+static void imx_drm_update_possible_crtcs(void)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_crtc *imx_drm_crtc;
+	struct imx_drm_encoder *enc;
+	struct crtc_cookie *cookie;
+
+	list_for_each_entry(enc, &imxdrm->encoder_list, list) {
+		u32 possible_crtcs = 0;
+
+		list_for_each_entry(cookie, &enc->possible_crtcs, list) {
+			list_for_each_entry(imx_drm_crtc, &imxdrm->crtc_list, list) {
+				if (imx_drm_crtc->cookie.cookie == cookie->cookie &&
+						imx_drm_crtc->cookie.id == cookie->id) {
+					possible_crtcs |= 1 << imx_drm_crtc->pipe;
+				}
+			}
+		}
+		enc->encoder->possible_crtcs = possible_crtcs;
+		enc->encoder->possible_clones = possible_crtcs;
+	}
+}
+
+/*
+ * imx_drm_add_crtc - add a new crtc
+ *
+ * The return value if !NULL is a cookie for the caller to pass to
+ * imx_drm_remove_crtc later.
+ */
+int imx_drm_add_crtc(struct drm_crtc *crtc,
+		struct imx_drm_crtc **new_crtc,
+		const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs,
+		struct module *owner, void *cookie, int id)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_crtc *imx_drm_crtc;
+	const struct drm_crtc_funcs *crtc_funcs;
+	int ret;
+
+	mutex_lock(&imxdrm->mutex);
+
+	if (imxdrm->references) {
+		ret = -EBUSY;
+		goto err_busy;
+	}
+
+	imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL);
+	if (!imx_drm_crtc) {
+		ret = -ENOMEM;
+		goto err_alloc;
+	}
+
+	imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs;
+	imx_drm_crtc->pipe = imxdrm->pipes++;
+	imx_drm_crtc->cookie.cookie = cookie;
+	imx_drm_crtc->cookie.id = id;
+
+	crtc_funcs = imx_drm_helper_funcs->crtc_funcs;
+
+	imx_drm_crtc->crtc = crtc;
+	imx_drm_crtc->imxdrm = imxdrm;
+
+	imx_drm_crtc->owner = owner;
+
+	list_add_tail(&imx_drm_crtc->list, &imxdrm->crtc_list);
+
+	*new_crtc = imx_drm_crtc;
+
+	ret = imx_drm_crtc_register(imx_drm_crtc);
+	if (ret)
+		goto err_register;
+
+	imx_drm_update_possible_crtcs();
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return 0;
+
+err_register:
+	kfree(imx_drm_crtc);
+err_alloc:
+err_busy:
+	mutex_unlock(&imxdrm->mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(imx_drm_add_crtc);
+
+/*
+ * imx_drm_remove_crtc - remove a crtc
+ */
+int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc)
+{
+	struct imx_drm_device *imxdrm = imx_drm_crtc->imxdrm;
+
+	mutex_lock(&imxdrm->mutex);
+
+	drm_crtc_cleanup(imx_drm_crtc->crtc);
+
+	list_del(&imx_drm_crtc->list);
+
+	drm_mode_group_reinit(imxdrm->drm);
+
+	mutex_unlock(&imxdrm->mutex);
+
+	kfree(imx_drm_crtc);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_drm_remove_crtc);
+
+/*
+ * imx_drm_add_encoder - add a new encoder
+ */
+int imx_drm_add_encoder(struct drm_encoder *encoder,
+		struct imx_drm_encoder **newenc, struct module *owner)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_encoder *imx_drm_encoder;
+	int ret;
+
+	mutex_lock(&imxdrm->mutex);
+
+	if (imxdrm->references) {
+		ret = -EBUSY;
+		goto err_busy;
+	}
+
+	imx_drm_encoder = kzalloc(sizeof(*imx_drm_encoder), GFP_KERNEL);
+	if (!imx_drm_encoder) {
+		ret = -ENOMEM;
+		goto err_alloc;
+	}
+
+	imx_drm_encoder->encoder = encoder;
+	imx_drm_encoder->owner = owner;
+
+	ret = imx_drm_encoder_register(imx_drm_encoder);
+	if (ret) {
+		kfree(imx_drm_encoder);
+		ret = -ENOMEM;
+		goto err_register;
+	}
+
+	list_add_tail(&imx_drm_encoder->list, &imxdrm->encoder_list);
+
+	*newenc = imx_drm_encoder;
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return 0;
+
+err_register:
+	kfree(imx_drm_encoder);
+err_alloc:
+err_busy:
+	mutex_unlock(&imxdrm->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(imx_drm_add_encoder);
+
+int imx_drm_encoder_add_possible_crtcs(
+		struct imx_drm_encoder *imx_drm_encoder,
+		struct device_node *np)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct of_phandle_args args;
+	struct crtc_cookie *c;
+	int ret = 0;
+	int i;
+
+	if (!list_empty(&imx_drm_encoder->possible_crtcs))
+		return -EBUSY;
+
+	for (i = 0; !ret; i++) {
+		ret = of_parse_phandle_with_args(np, "crtcs",
+				"#crtc-cells", i, &args);
+		if (ret < 0)
+			break;
+
+		c = kzalloc(sizeof(*c), GFP_KERNEL);
+		if (!c) {
+			of_node_put(args.np);
+			return -ENOMEM;
+		}
+
+		c->cookie = args.np;
+		c->id = args.args_count > 0 ? args.args[0] : 0;
+
+		of_node_put(args.np);
+
+		mutex_lock(&imxdrm->mutex);
+
+		list_add_tail(&c->list, &imx_drm_encoder->possible_crtcs);
+
+		mutex_unlock(&imxdrm->mutex);
+	}
+
+	imx_drm_update_possible_crtcs();
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_drm_encoder_add_possible_crtcs);
+
+int imx_drm_encoder_get_mux_id(struct imx_drm_encoder *imx_drm_encoder,
+		struct drm_crtc *crtc)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_crtc *imx_crtc;
+	int i = 0;
+
+	mutex_lock(&imxdrm->mutex);
+
+	list_for_each_entry(imx_crtc, &imxdrm->crtc_list, list) {
+		if (imx_crtc->crtc == crtc)
+			goto found;
+		i++;
+	}
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return -EINVAL;
+found:
+	mutex_unlock(&imxdrm->mutex);
+
+	return i;
+}
+
+/*
+ * imx_drm_remove_encoder - remove an encoder
+ */
+int imx_drm_remove_encoder(struct imx_drm_encoder *imx_drm_encoder)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct crtc_cookie *c, *tmp;
+
+	mutex_lock(&imxdrm->mutex);
+
+	imx_drm_encoder_unregister(imx_drm_encoder);
+
+	list_del(&imx_drm_encoder->list);
+
+	list_for_each_entry_safe(c, tmp, &imx_drm_encoder->possible_crtcs,
+			list)
+		kfree(c);
+
+	mutex_unlock(&imxdrm->mutex);
+
+	kfree(imx_drm_encoder);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_drm_remove_encoder);
+
+/*
+ * imx_drm_add_connector - add a connector
+ */
+int imx_drm_add_connector(struct drm_connector *connector,
+		struct imx_drm_connector **new_con,
+		struct module *owner)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+	struct imx_drm_connector *imx_drm_connector;
+	int ret;
+
+	mutex_lock(&imxdrm->mutex);
+
+	if (imxdrm->references) {
+		ret = -EBUSY;
+		goto err_busy;
+	}
+
+	imx_drm_connector = kzalloc(sizeof(*imx_drm_connector), GFP_KERNEL);
+	if (!imx_drm_connector) {
+		ret = -ENOMEM;
+		goto err_alloc;
+	}
+
+	imx_drm_connector->connector = connector;
+	imx_drm_connector->owner = owner;
+
+	ret = imx_drm_connector_register(imx_drm_connector);
+	if (ret)
+		goto err_register;
+
+	list_add_tail(&imx_drm_connector->list, &imxdrm->connector_list);
+
+	*new_con = imx_drm_connector;
+
+	mutex_unlock(&imxdrm->mutex);
+
+	return 0;
+
+err_register:
+	kfree(imx_drm_connector);
+err_alloc:
+err_busy:
+	mutex_unlock(&imxdrm->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(imx_drm_add_connector);
+
+void imx_drm_fb_helper_set(struct drm_fbdev_cma *fbdev_helper)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+
+	imxdrm->fbhelper = fbdev_helper;
+}
+EXPORT_SYMBOL_GPL(imx_drm_fb_helper_set);
+
+/*
+ * imx_drm_remove_connector - remove a connector
+ */
+int imx_drm_remove_connector(struct imx_drm_connector *imx_drm_connector)
+{
+	struct imx_drm_device *imxdrm = __imx_drm_device();
+
+	mutex_lock(&imxdrm->mutex);
+
+	imx_drm_connector_unregister(imx_drm_connector);
+
+	list_del(&imx_drm_connector->list);
+
+	mutex_unlock(&imxdrm->mutex);
+
+	kfree(imx_drm_connector);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_drm_remove_connector);
+
+static struct drm_ioctl_desc imx_drm_ioctls[] = {
+	/* none so far */
+};
+
+static struct drm_driver imx_drm_driver = {
+	.driver_features	= DRIVER_MODESET | DRIVER_GEM,
+	.load			= imx_drm_driver_load,
+	.unload			= imx_drm_driver_unload,
+	.firstopen		= imx_drm_driver_firstopen,
+	.lastclose		= imx_drm_driver_lastclose,
+	.gem_free_object	= drm_gem_cma_free_object,
+	.gem_vm_ops		= &drm_gem_cma_vm_ops,
+	.dumb_create		= drm_gem_cma_dumb_create,
+	.dumb_map_offset	= drm_gem_cma_dumb_map_offset,
+	.dumb_destroy		= drm_gem_cma_dumb_destroy,
+
+	.get_vblank_counter	= drm_vblank_count,
+	.enable_vblank		= imx_drm_enable_vblank,
+	.disable_vblank		= imx_drm_disable_vblank,
+	.ioctls			= imx_drm_ioctls,
+	.num_ioctls		= ARRAY_SIZE(imx_drm_ioctls),
+	.fops			= &imx_drm_driver_fops,
+	.name			= "imx-drm",
+	.desc			= "i.MX DRM graphics",
+	.date			= "20120507",
+	.major			= 1,
+	.minor			= 0,
+	.patchlevel		= 0,
+};
+
+static int imx_drm_platform_probe(struct platform_device *pdev)
+{
+	imx_drm_device->dev = &pdev->dev;
+
+	return drm_platform_init(&imx_drm_driver, pdev);
+}
+
+static int imx_drm_platform_remove(struct platform_device *pdev)
+{
+	drm_platform_exit(&imx_drm_driver, pdev);
+
+	return 0;
+}
+
+static struct platform_driver imx_drm_pdrv = {
+	.probe		= imx_drm_platform_probe,
+	.remove		= __devexit_p(imx_drm_platform_remove),
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "imx-drm",
+	},
+};
+
+static struct platform_device *imx_drm_pdev;
+
+static int __init imx_drm_init(void)
+{
+	int ret;
+
+	imx_drm_device = kzalloc(sizeof(*imx_drm_device), GFP_KERNEL);
+	if (!imx_drm_device)
+		return -ENOMEM;
+
+	mutex_init(&imx_drm_device->mutex);
+	INIT_LIST_HEAD(&imx_drm_device->crtc_list);
+	INIT_LIST_HEAD(&imx_drm_device->connector_list);
+	INIT_LIST_HEAD(&imx_drm_device->encoder_list);
+
+	imx_drm_pdev = platform_device_register_simple("imx-drm", -1, NULL, 0);
+	if (!imx_drm_pdev) {
+		ret = -EINVAL;
+		goto err_pdev;
+	}
+
+	imx_drm_pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32),
+
+	ret = platform_driver_register(&imx_drm_pdrv);
+	if (ret)
+		goto err_pdrv;
+
+	return 0;
+
+err_pdrv:
+	platform_device_unregister(imx_drm_pdev);
+err_pdev:
+	kfree(imx_drm_device);
+
+	return ret;
+}
+
+static void __exit imx_drm_exit(void)
+{
+	platform_device_unregister(imx_drm_pdev);
+	platform_driver_unregister(&imx_drm_pdrv);
+
+	kfree(imx_drm_device);
+}
+
+module_init(imx_drm_init);
+module_exit(imx_drm_exit);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("i.MX drm driver core");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/imx-drm/imx-drm.h b/drivers/staging/imx-drm/imx-drm.h
new file mode 100644
index 00000000000..ae28a490c44
--- /dev/null
+++ b/drivers/staging/imx-drm/imx-drm.h
@@ -0,0 +1,58 @@
+#ifndef _IMX_DRM_H_
+#define _IMX_DRM_H_
+
+struct imx_drm_crtc;
+struct drm_fbdev_cma;
+
+struct imx_drm_crtc_helper_funcs {
+	int (*enable_vblank)(struct drm_crtc *crtc);
+	void (*disable_vblank)(struct drm_crtc *crtc);
+	int (*set_interface_pix_fmt)(struct drm_crtc *crtc, u32 encoder_type,
+			u32 pix_fmt);
+	const struct drm_crtc_helper_funcs *crtc_helper_funcs;
+	const struct drm_crtc_funcs *crtc_funcs;
+};
+
+int imx_drm_add_crtc(struct drm_crtc *crtc,
+		struct imx_drm_crtc **new_crtc,
+		const struct imx_drm_crtc_helper_funcs *imx_helper_funcs,
+		struct module *owner, void *cookie, int id);
+int imx_drm_remove_crtc(struct imx_drm_crtc *);
+int imx_drm_init_drm(struct platform_device *pdev,
+		int preferred_bpp);
+int imx_drm_exit_drm(void);
+
+int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc);
+void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc);
+void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc);
+
+struct imx_drm_encoder;
+int imx_drm_add_encoder(struct drm_encoder *encoder,
+		struct imx_drm_encoder **new_enc,
+		struct module *owner);
+int imx_drm_remove_encoder(struct imx_drm_encoder *);
+
+struct imx_drm_connector;
+int imx_drm_add_connector(struct drm_connector *connector,
+		struct imx_drm_connector **new_con,
+		struct module *owner);
+int imx_drm_remove_connector(struct imx_drm_connector *);
+
+void imx_drm_mode_config_init(struct drm_device *drm);
+
+struct drm_gem_cma_object *imx_drm_fb_get_obj(struct drm_framebuffer *fb);
+
+struct drm_device *imx_drm_device_get(void);
+void imx_drm_device_put(void);
+int imx_drm_crtc_panel_format(struct drm_crtc *crtc, u32 encoder_type,
+		u32 interface_pix_fmt);
+void imx_drm_fb_helper_set(struct drm_fbdev_cma *fbdev_helper);
+
+struct device_node;
+
+int imx_drm_encoder_get_mux_id(struct imx_drm_encoder *imx_drm_encoder,
+		struct drm_crtc *crtc);
+int imx_drm_encoder_add_possible_crtcs(struct imx_drm_encoder *imx_drm_encoder,
+		struct device_node *np);
+
+#endif /* _IMX_DRM_H_ */
diff --git a/drivers/staging/imx-drm/imx-fb.c b/drivers/staging/imx-drm/imx-fb.c
new file mode 100644
index 00000000000..03a7b4e14f6
--- /dev/null
+++ b/drivers/staging/imx-drm/imx-fb.c
@@ -0,0 +1,47 @@
+/*
+ * i.MX drm driver
+ *
+ * Copyright (C) 2012 Sascha Hauer, Pengutronix
+ *
+ * Based on Samsung Exynos code
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/module.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+
+#include "imx-drm.h"
+
+static struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
+	.fb_create = drm_fb_cma_create,
+};
+
+void imx_drm_mode_config_init(struct drm_device *dev)
+{
+	dev->mode_config.min_width = 64;
+	dev->mode_config.min_height = 64;
+
+	/*
+	 * set max width and height as default value(4096x4096).
+	 * this value would be used to check framebuffer size limitation
+	 * at drm_mode_addfb().
+	 */
+	dev->mode_config.max_width = 4096;
+	dev->mode_config.max_height = 4096;
+
+	dev->mode_config.funcs = &imx_drm_mode_config_funcs;
+}
diff --git a/drivers/staging/imx-drm/imx-fbdev.c b/drivers/staging/imx-drm/imx-fbdev.c
new file mode 100644
index 00000000000..8331739c3d0
--- /dev/null
+++ b/drivers/staging/imx-drm/imx-fbdev.c
@@ -0,0 +1,74 @@
+/*
+ * i.MX drm driver
+ *
+ * Copyright (C) 2012 Sascha Hauer, Pengutronix
+ *
+ * Based on Samsung Exynos code
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/module.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+
+#include "imx-drm.h"
+
+#define MAX_CONNECTOR		4
+#define PREFERRED_BPP		16
+
+static struct drm_fbdev_cma *fbdev_cma;
+
+static int legacyfb_depth = 16;
+
+module_param(legacyfb_depth, int, 0444);
+
+static int __init imx_fb_helper_init(void)
+{
+	struct drm_device *drm = imx_drm_device_get();
+
+	if (!drm)
+		return -EINVAL;
+
+	if (legacyfb_depth != 16 && legacyfb_depth != 32) {
+		pr_warn("i.MX legacyfb: invalid legacyfb_depth setting. defaulting to 16bpp\n");
+		legacyfb_depth = 16;
+	}
+
+	fbdev_cma = drm_fbdev_cma_init(drm, legacyfb_depth,
+			drm->mode_config.num_crtc, MAX_CONNECTOR);
+
+	if (IS_ERR(fbdev_cma)) {
+		imx_drm_device_put();
+		return PTR_ERR(fbdev_cma);
+	}
+
+	imx_drm_fb_helper_set(fbdev_cma);
+
+	return 0;
+}
+
+static void __exit imx_fb_helper_exit(void)
+{
+	imx_drm_fb_helper_set(NULL);
+	drm_fbdev_cma_fini(fbdev_cma);
+	imx_drm_device_put();
+}
+
+late_initcall(imx_fb_helper_init);
+module_exit(imx_fb_helper_exit);
+
+MODULE_DESCRIPTION("Freescale i.MX legacy fb driver");
+MODULE_AUTHOR("Sascha Hauer, Pengutronix");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/imx-drm/ipu-v3/Makefile b/drivers/staging/imx-drm/ipu-v3/Makefile
new file mode 100644
index 00000000000..28ed72e98a9
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += imx-ipu-v3.o
+
+imx-ipu-v3-objs := ipu-common.o ipu-dc.o ipu-di.o ipu-dp.o ipu-dmfc.o
diff --git a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
new file mode 100644
index 00000000000..74158dd7375
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
@@ -0,0 +1,318 @@
+/*
+ * Copyright 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU Lesser General
+ * Public License.  You may obtain a copy of the GNU Lesser General
+ * Public License Version 2.1 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/lgpl-license.html
+ * http://www.gnu.org/copyleft/lgpl.html
+ */
+
+#ifndef __DRM_IPU_H__
+#define __DRM_IPU_H__
+
+#include <linux/types.h>
+#include <linux/videodev2.h>
+#include <linux/bitmap.h>
+#include <linux/fb.h>
+#include <linux/videodev2.h>
+
+struct ipu_soc;
+
+enum ipuv3_type {
+	IPUV3EX,
+	IPUV3M,
+	IPUV3H,
+};
+
+/*
+ * Bitfield of Display Interface signal polarities.
+ */
+struct ipu_di_signal_cfg {
+	unsigned datamask_en:1;
+	unsigned interlaced:1;
+	unsigned odd_field_first:1;
+	unsigned clksel_en:1;
+	unsigned clkidle_en:1;
+	unsigned data_pol:1;	/* true = inverted */
+	unsigned clk_pol:1;	/* true = rising edge */
+	unsigned enable_pol:1;
+	unsigned Hsync_pol:1;	/* true = active high */
+	unsigned Vsync_pol:1;
+
+	u16 width;
+	u16 height;
+	u32 pixel_fmt;
+	u16 h_start_width;
+	u16 h_sync_width;
+	u16 h_end_width;
+	u16 v_start_width;
+	u16 v_sync_width;
+	u16 v_end_width;
+	u32 v_to_h_sync;
+	unsigned long pixelclock;
+#define IPU_DI_CLKMODE_SYNC	(1 << 0)
+#define IPU_DI_CLKMODE_EXT	(1 << 1)
+	unsigned long clkflags;
+};
+
+enum ipu_color_space {
+	IPUV3_COLORSPACE_RGB,
+	IPUV3_COLORSPACE_YUV,
+	IPUV3_COLORSPACE_UNKNOWN,
+};
+
+struct ipuv3_channel;
+
+enum ipu_channel_irq {
+	IPU_IRQ_EOF = 0,
+	IPU_IRQ_NFACK = 64,
+	IPU_IRQ_NFB4EOF = 128,
+	IPU_IRQ_EOS = 192,
+};
+
+int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
+		enum ipu_channel_irq irq);
+
+#define IPU_IRQ_DP_SF_START		(448 + 2)
+#define IPU_IRQ_DP_SF_END		(448 + 3)
+#define IPU_IRQ_BG_SF_END		IPU_IRQ_DP_SF_END,
+#define IPU_IRQ_DC_FC_0			(448 + 8)
+#define IPU_IRQ_DC_FC_1			(448 + 9)
+#define IPU_IRQ_DC_FC_2			(448 + 10)
+#define IPU_IRQ_DC_FC_3			(448 + 11)
+#define IPU_IRQ_DC_FC_4			(448 + 12)
+#define IPU_IRQ_DC_FC_6			(448 + 13)
+#define IPU_IRQ_VSYNC_PRE_0		(448 + 14)
+#define IPU_IRQ_VSYNC_PRE_1		(448 + 15)
+
+/*
+ * IPU Image DMA Controller (idmac) functions
+ */
+struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned channel);
+void ipu_idmac_put(struct ipuv3_channel *);
+
+int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
+int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
+
+void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
+		bool doublebuffer);
+void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
+
+/*
+ * IPU Display Controller (dc) functions
+ */
+struct ipu_dc;
+struct ipu_di;
+struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel);
+void ipu_dc_put(struct ipu_dc *dc);
+int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
+		u32 pixel_fmt, u32 width);
+void ipu_dc_enable_channel(struct ipu_dc *dc);
+void ipu_dc_disable_channel(struct ipu_dc *dc);
+
+/*
+ * IPU Display Interface (di) functions
+ */
+struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp);
+void ipu_di_put(struct ipu_di *);
+int ipu_di_disable(struct ipu_di *);
+int ipu_di_enable(struct ipu_di *);
+int ipu_di_get_num(struct ipu_di *);
+int ipu_di_init_sync_panel(struct ipu_di *, struct ipu_di_signal_cfg *sig);
+
+/*
+ * IPU Display Multi FIFO Controller (dmfc) functions
+ */
+struct dmfc_channel;
+int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc);
+void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc);
+int ipu_dmfc_alloc_bandwidth(struct dmfc_channel *dmfc,
+		unsigned long bandwidth_mbs, int burstsize);
+void ipu_dmfc_free_bandwidth(struct dmfc_channel *dmfc);
+int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width);
+struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipuv3_channel);
+void ipu_dmfc_put(struct dmfc_channel *dmfc);
+
+/*
+ * IPU Display Processor (dp) functions
+ */
+#define IPU_DP_FLOW_SYNC_BG	0
+#define IPU_DP_FLOW_SYNC_FG	1
+#define IPU_DP_FLOW_ASYNC0_BG	2
+#define IPU_DP_FLOW_ASYNC0_FG	3
+#define IPU_DP_FLOW_ASYNC1_BG	4
+#define IPU_DP_FLOW_ASYNC1_FG	5
+
+struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow);
+void ipu_dp_put(struct ipu_dp *);
+int ipu_dp_enable_channel(struct ipu_dp *dp);
+void ipu_dp_disable_channel(struct ipu_dp *dp);
+int ipu_dp_setup_channel(struct ipu_dp *dp,
+		enum ipu_color_space in, enum ipu_color_space out);
+int ipu_dp_set_window_pos(struct ipu_dp *, u16 x_pos, u16 y_pos);
+int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, u8 alpha,
+		bool bg_chan);
+
+#define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size))
+
+#define IPU_FIELD_UBO		IPU_CPMEM_WORD(0, 46, 22)
+#define IPU_FIELD_VBO		IPU_CPMEM_WORD(0, 68, 22)
+#define IPU_FIELD_IOX		IPU_CPMEM_WORD(0, 90, 4)
+#define IPU_FIELD_RDRW		IPU_CPMEM_WORD(0, 94, 1)
+#define IPU_FIELD_SO		IPU_CPMEM_WORD(0, 113, 1)
+#define IPU_FIELD_SLY		IPU_CPMEM_WORD(1, 102, 14)
+#define IPU_FIELD_SLUV		IPU_CPMEM_WORD(1, 128, 14)
+
+#define IPU_FIELD_XV		IPU_CPMEM_WORD(0, 0, 10)
+#define IPU_FIELD_YV		IPU_CPMEM_WORD(0, 10, 9)
+#define IPU_FIELD_XB		IPU_CPMEM_WORD(0, 19, 13)
+#define IPU_FIELD_YB		IPU_CPMEM_WORD(0, 32, 12)
+#define IPU_FIELD_NSB_B		IPU_CPMEM_WORD(0, 44, 1)
+#define IPU_FIELD_CF		IPU_CPMEM_WORD(0, 45, 1)
+#define IPU_FIELD_SX		IPU_CPMEM_WORD(0, 46, 12)
+#define IPU_FIELD_SY		IPU_CPMEM_WORD(0, 58, 11)
+#define IPU_FIELD_NS		IPU_CPMEM_WORD(0, 69, 10)
+#define IPU_FIELD_SDX		IPU_CPMEM_WORD(0, 79, 7)
+#define IPU_FIELD_SM		IPU_CPMEM_WORD(0, 86, 10)
+#define IPU_FIELD_SCC		IPU_CPMEM_WORD(0, 96, 1)
+#define IPU_FIELD_SCE		IPU_CPMEM_WORD(0, 97, 1)
+#define IPU_FIELD_SDY		IPU_CPMEM_WORD(0, 98, 7)
+#define IPU_FIELD_SDRX		IPU_CPMEM_WORD(0, 105, 1)
+#define IPU_FIELD_SDRY		IPU_CPMEM_WORD(0, 106, 1)
+#define IPU_FIELD_BPP		IPU_CPMEM_WORD(0, 107, 3)
+#define IPU_FIELD_DEC_SEL	IPU_CPMEM_WORD(0, 110, 2)
+#define IPU_FIELD_DIM		IPU_CPMEM_WORD(0, 112, 1)
+#define IPU_FIELD_BNDM		IPU_CPMEM_WORD(0, 114, 3)
+#define IPU_FIELD_BM		IPU_CPMEM_WORD(0, 117, 2)
+#define IPU_FIELD_ROT		IPU_CPMEM_WORD(0, 119, 1)
+#define IPU_FIELD_HF		IPU_CPMEM_WORD(0, 120, 1)
+#define IPU_FIELD_VF		IPU_CPMEM_WORD(0, 121, 1)
+#define IPU_FIELD_THE		IPU_CPMEM_WORD(0, 122, 1)
+#define IPU_FIELD_CAP		IPU_CPMEM_WORD(0, 123, 1)
+#define IPU_FIELD_CAE		IPU_CPMEM_WORD(0, 124, 1)
+#define IPU_FIELD_FW		IPU_CPMEM_WORD(0, 125, 13)
+#define IPU_FIELD_FH		IPU_CPMEM_WORD(0, 138, 12)
+#define IPU_FIELD_EBA0		IPU_CPMEM_WORD(1, 0, 29)
+#define IPU_FIELD_EBA1		IPU_CPMEM_WORD(1, 29, 29)
+#define IPU_FIELD_ILO		IPU_CPMEM_WORD(1, 58, 20)
+#define IPU_FIELD_NPB		IPU_CPMEM_WORD(1, 78, 7)
+#define IPU_FIELD_PFS		IPU_CPMEM_WORD(1, 85, 4)
+#define IPU_FIELD_ALU		IPU_CPMEM_WORD(1, 89, 1)
+#define IPU_FIELD_ALBM		IPU_CPMEM_WORD(1, 90, 3)
+#define IPU_FIELD_ID		IPU_CPMEM_WORD(1, 93, 2)
+#define IPU_FIELD_TH		IPU_CPMEM_WORD(1, 95, 7)
+#define IPU_FIELD_SL		IPU_CPMEM_WORD(1, 102, 14)
+#define IPU_FIELD_WID0		IPU_CPMEM_WORD(1, 116, 3)
+#define IPU_FIELD_WID1		IPU_CPMEM_WORD(1, 119, 3)
+#define IPU_FIELD_WID2		IPU_CPMEM_WORD(1, 122, 3)
+#define IPU_FIELD_WID3		IPU_CPMEM_WORD(1, 125, 3)
+#define IPU_FIELD_OFS0		IPU_CPMEM_WORD(1, 128, 5)
+#define IPU_FIELD_OFS1		IPU_CPMEM_WORD(1, 133, 5)
+#define IPU_FIELD_OFS2		IPU_CPMEM_WORD(1, 138, 5)
+#define IPU_FIELD_OFS3		IPU_CPMEM_WORD(1, 143, 5)
+#define IPU_FIELD_SXYS		IPU_CPMEM_WORD(1, 148, 1)
+#define IPU_FIELD_CRE		IPU_CPMEM_WORD(1, 149, 1)
+#define IPU_FIELD_DEC_SEL2	IPU_CPMEM_WORD(1, 150, 1)
+
+struct ipu_cpmem_word {
+	u32 data[5];
+	u32 res[3];
+};
+
+struct ipu_ch_param {
+	struct ipu_cpmem_word word[2];
+};
+
+void ipu_ch_param_write_field(struct ipu_ch_param __iomem *base, u32 wbs, u32 v);
+u32 ipu_ch_param_read_field(struct ipu_ch_param __iomem *base, u32 wbs);
+struct ipu_ch_param __iomem *ipu_get_cpmem(struct ipuv3_channel *channel);
+void ipu_ch_param_dump(struct ipu_ch_param __iomem *p);
+
+static inline void ipu_ch_param_zero(struct ipu_ch_param __iomem *p)
+{
+	int i;
+	void __iomem *base = p;
+
+	for (i = 0; i < sizeof(*p) / sizeof(u32); i++)
+		writel(0, base + i * sizeof(u32));
+}
+
+static inline void ipu_cpmem_set_buffer(struct ipu_ch_param __iomem *p,
+		int bufnum, dma_addr_t buf)
+{
+	if (bufnum)
+		ipu_ch_param_write_field(p, IPU_FIELD_EBA1, buf >> 3);
+	else
+		ipu_ch_param_write_field(p, IPU_FIELD_EBA0, buf >> 3);
+}
+
+static inline void ipu_cpmem_set_resolution(struct ipu_ch_param __iomem *p,
+		int xres, int yres)
+{
+	ipu_ch_param_write_field(p, IPU_FIELD_FW, xres - 1);
+	ipu_ch_param_write_field(p, IPU_FIELD_FH, yres - 1);
+}
+
+static inline void ipu_cpmem_set_stride(struct ipu_ch_param __iomem *p,
+		int stride)
+{
+	ipu_ch_param_write_field(p, IPU_FIELD_SLY, stride - 1);
+}
+
+void ipu_cpmem_set_high_priority(struct ipuv3_channel *channel);
+
+struct ipu_rgb {
+	struct fb_bitfield	red;
+	struct fb_bitfield	green;
+	struct fb_bitfield	blue;
+	struct fb_bitfield	transp;
+	int			bits_per_pixel;
+};
+
+struct ipu_image {
+	struct v4l2_pix_format pix;
+	struct v4l2_rect rect;
+	dma_addr_t phys;
+};
+
+int ipu_cpmem_set_format_passthrough(struct ipu_ch_param __iomem *p,
+		int width);
+
+int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *,
+		struct ipu_rgb *rgb);
+
+static inline void ipu_cpmem_interlaced_scan(struct ipu_ch_param *p,
+		int stride)
+{
+	ipu_ch_param_write_field(p, IPU_FIELD_SO, 1);
+	ipu_ch_param_write_field(p, IPU_FIELD_ILO, stride / 8);
+	ipu_ch_param_write_field(p, IPU_FIELD_SLY, (stride * 2) - 1);
+};
+
+void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
+			int stride, int height);
+void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p,
+		u32 pixel_format, int stride, int u_offset, int v_offset);
+int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat);
+int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
+		struct ipu_image *image);
+
+enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
+
+static inline void ipu_cpmem_set_burstsize(struct ipu_ch_param __iomem *p,
+		int burstsize)
+{
+	ipu_ch_param_write_field(p, IPU_FIELD_NPB, burstsize - 1);
+};
+
+struct ipu_client_platformdata {
+	int di;
+	int dc;
+	int dp;
+	int dmfc;
+	int dma[2];
+};
+
+#endif /* __DRM_IPU_H__ */
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
new file mode 100644
index 00000000000..f381960f42b
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -0,0 +1,1143 @@
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/list.h>
+#include <linux/irq.h>
+#include <linux/of_device.h>
+#include <asm/mach/irq.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+static inline u32 ipu_cm_read(struct ipu_soc *ipu, unsigned offset)
+{
+	return readl(ipu->cm_reg + offset);
+}
+
+static inline void ipu_cm_write(struct ipu_soc *ipu, u32 value, unsigned offset)
+{
+	writel(value, ipu->cm_reg + offset);
+}
+
+static inline u32 ipu_idmac_read(struct ipu_soc *ipu, unsigned offset)
+{
+	return readl(ipu->idmac_reg + offset);
+}
+
+static inline void ipu_idmac_write(struct ipu_soc *ipu, u32 value,
+		unsigned offset)
+{
+	writel(value, ipu->idmac_reg + offset);
+}
+
+void ipu_srm_dp_sync_update(struct ipu_soc *ipu)
+{
+	u32 val;
+
+	val = ipu_cm_read(ipu, IPU_SRM_PRI2);
+	val |= 0x8;
+	ipu_cm_write(ipu, val, IPU_SRM_PRI2);
+}
+EXPORT_SYMBOL_GPL(ipu_srm_dp_sync_update);
+
+struct ipu_ch_param __iomem *ipu_get_cpmem(struct ipuv3_channel *channel)
+{
+	struct ipu_soc *ipu = channel->ipu;
+
+	return ipu->cpmem_base + channel->num;
+}
+EXPORT_SYMBOL_GPL(ipu_get_cpmem);
+
+void ipu_cpmem_set_high_priority(struct ipuv3_channel *channel)
+{
+	struct ipu_soc *ipu = channel->ipu;
+	struct ipu_ch_param __iomem *p = ipu_get_cpmem(channel);
+	u32 val;
+
+	if (ipu->ipu_type == IPUV3EX)
+		ipu_ch_param_write_field(p, IPU_FIELD_ID, 1);
+
+	val = ipu_idmac_read(ipu, IDMAC_CHA_PRI(channel->num));
+	val |= 1 << (channel->num % 32);
+	ipu_idmac_write(ipu, val, IDMAC_CHA_PRI(channel->num));
+};
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_high_priority);
+
+void ipu_ch_param_write_field(struct ipu_ch_param __iomem *base, u32 wbs, u32 v)
+{
+	u32 bit = (wbs >> 8) % 160;
+	u32 size = wbs & 0xff;
+	u32 word = (wbs >> 8) / 160;
+	u32 i = bit / 32;
+	u32 ofs = bit % 32;
+	u32 mask = (1 << size) - 1;
+	u32 val;
+
+	pr_debug("%s %d %d %d\n", __func__, word, bit , size);
+
+	val = readl(&base->word[word].data[i]);
+	val &= ~(mask << ofs);
+	val |= v << ofs;
+	writel(val, &base->word[word].data[i]);
+
+	if ((bit + size - 1) / 32 > i) {
+		val = readl(&base->word[word].data[i + 1]);
+		val &= ~(mask >> (ofs ? (32 - ofs) : 0));
+		val |= v >> (ofs ? (32 - ofs) : 0);
+		writel(val, &base->word[word].data[i + 1]);
+	}
+}
+EXPORT_SYMBOL_GPL(ipu_ch_param_write_field);
+
+u32 ipu_ch_param_read_field(struct ipu_ch_param __iomem *base, u32 wbs)
+{
+	u32 bit = (wbs >> 8) % 160;
+	u32 size = wbs & 0xff;
+	u32 word = (wbs >> 8) / 160;
+	u32 i = bit / 32;
+	u32 ofs = bit % 32;
+	u32 mask = (1 << size) - 1;
+	u32 val = 0;
+
+	pr_debug("%s %d %d %d\n", __func__, word, bit , size);
+
+	val = (readl(&base->word[word].data[i]) >> ofs) & mask;
+
+	if ((bit + size - 1) / 32 > i) {
+		u32 tmp;
+		tmp = readl(&base->word[word].data[i + 1]);
+		tmp &= mask >> (ofs ? (32 - ofs) : 0);
+		val |= tmp << (ofs ? (32 - ofs) : 0);
+	}
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(ipu_ch_param_read_field);
+
+int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *p,
+		struct ipu_rgb *rgb)
+{
+	int bpp = 0, npb = 0, ro, go, bo, to;
+
+	ro = rgb->bits_per_pixel - rgb->red.length - rgb->red.offset;
+	go = rgb->bits_per_pixel - rgb->green.length - rgb->green.offset;
+	bo = rgb->bits_per_pixel - rgb->blue.length - rgb->blue.offset;
+	to = rgb->bits_per_pixel - rgb->transp.length - rgb->transp.offset;
+
+	ipu_ch_param_write_field(p, IPU_FIELD_WID0, rgb->red.length - 1);
+	ipu_ch_param_write_field(p, IPU_FIELD_OFS0, ro);
+	ipu_ch_param_write_field(p, IPU_FIELD_WID1, rgb->green.length - 1);
+	ipu_ch_param_write_field(p, IPU_FIELD_OFS1, go);
+	ipu_ch_param_write_field(p, IPU_FIELD_WID2, rgb->blue.length - 1);
+	ipu_ch_param_write_field(p, IPU_FIELD_OFS2, bo);
+
+	if (rgb->transp.length) {
+		ipu_ch_param_write_field(p, IPU_FIELD_WID3,
+				rgb->transp.length - 1);
+		ipu_ch_param_write_field(p, IPU_FIELD_OFS3, to);
+	} else {
+		ipu_ch_param_write_field(p, IPU_FIELD_WID3, 7);
+		ipu_ch_param_write_field(p, IPU_FIELD_OFS3,
+				rgb->bits_per_pixel);
+	}
+
+	switch (rgb->bits_per_pixel) {
+	case 32:
+		bpp = 0;
+		npb = 15;
+		break;
+	case 24:
+		bpp = 1;
+		npb = 19;
+		break;
+	case 16:
+		bpp = 3;
+		npb = 31;
+		break;
+	case 8:
+		bpp = 5;
+		npb = 63;
+		break;
+	default:
+		return -EINVAL;
+	}
+	ipu_ch_param_write_field(p, IPU_FIELD_BPP, bpp);
+	ipu_ch_param_write_field(p, IPU_FIELD_NPB, npb);
+	ipu_ch_param_write_field(p, IPU_FIELD_PFS, 7); /* rgb mode */
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_rgb);
+
+int ipu_cpmem_set_format_passthrough(struct ipu_ch_param __iomem *p,
+		int width)
+{
+	int bpp = 0, npb = 0;
+
+	switch (width) {
+	case 32:
+		bpp = 0;
+		npb = 15;
+		break;
+	case 24:
+		bpp = 1;
+		npb = 19;
+		break;
+	case 16:
+		bpp = 3;
+		npb = 31;
+		break;
+	case 8:
+		bpp = 5;
+		npb = 63;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ipu_ch_param_write_field(p, IPU_FIELD_BPP, bpp);
+	ipu_ch_param_write_field(p, IPU_FIELD_NPB, npb);
+	ipu_ch_param_write_field(p, IPU_FIELD_PFS, 6); /* raw mode */
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_passthrough);
+
+void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p,
+		u32 pixel_format, int stride, int u_offset, int v_offset)
+{
+	switch (pixel_format) {
+	case V4L2_PIX_FMT_YUV420:
+		ipu_ch_param_write_field(p, IPU_FIELD_SLUV, (stride / 2) - 1);
+		ipu_ch_param_write_field(p, IPU_FIELD_UBO, u_offset / 8);
+		ipu_ch_param_write_field(p, IPU_FIELD_VBO, v_offset / 8);
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full);
+
+void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
+		int stride, int height)
+{
+	int u_offset, v_offset;
+	int uv_stride = 0;
+
+	switch (pixel_format) {
+	case V4L2_PIX_FMT_YUV420:
+		uv_stride = stride / 2;
+		u_offset = stride * height;
+		v_offset = u_offset + (uv_stride * height / 2);
+		ipu_cpmem_set_yuv_planar_full(p, V4L2_PIX_FMT_YUV420, stride,
+				u_offset, v_offset);
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar);
+
+static struct ipu_rgb def_rgb_32 = {
+	.red	= { .offset = 16, .length = 8, },
+	.green	= { .offset =  8, .length = 8, },
+	.blue	= { .offset =  0, .length = 8, },
+	.transp = { .offset = 24, .length = 8, },
+	.bits_per_pixel = 32,
+};
+
+static struct ipu_rgb def_bgr_32 = {
+	.red	= { .offset = 16, .length = 8, },
+	.green	= { .offset =  8, .length = 8, },
+	.blue	= { .offset =  0, .length = 8, },
+	.transp = { .offset = 24, .length = 8, },
+	.bits_per_pixel = 32,
+};
+
+static struct ipu_rgb def_rgb_24 = {
+	.red	= { .offset =  0, .length = 8, },
+	.green	= { .offset =  8, .length = 8, },
+	.blue	= { .offset = 16, .length = 8, },
+	.transp = { .offset =  0, .length = 0, },
+	.bits_per_pixel = 24,
+};
+
+static struct ipu_rgb def_bgr_24 = {
+	.red	= { .offset = 16, .length = 8, },
+	.green	= { .offset =  8, .length = 8, },
+	.blue	= { .offset =  0, .length = 8, },
+	.transp = { .offset =  0, .length = 0, },
+	.bits_per_pixel = 24,
+};
+
+static struct ipu_rgb def_rgb_16 = {
+	.red	= { .offset = 11, .length = 5, },
+	.green	= { .offset =  5, .length = 6, },
+	.blue	= { .offset =  0, .length = 5, },
+	.transp = { .offset =  0, .length = 0, },
+	.bits_per_pixel = 16,
+};
+
+#define Y_OFFSET(pix, x, y)	((x) + pix->width * (y))
+#define U_OFFSET(pix, x, y)	((pix->width * pix->height) + \
+					(pix->width * (y) / 4) + (x) / 2)
+#define V_OFFSET(pix, x, y)	((pix->width * pix->height) + \
+					(pix->width * pix->height / 4) + \
+					(pix->width * (y) / 4) + (x) / 2)
+
+int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
+{
+	switch (pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+		/* pix format */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 2);
+		/* burst size */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 63);
+		break;
+	case V4L2_PIX_FMT_UYVY:
+		/* bits/pixel */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_BPP, 3);
+		/* pix format */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 0xA);
+		/* burst size */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 31);
+		break;
+	case V4L2_PIX_FMT_YUYV:
+		/* bits/pixel */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_BPP, 3);
+		/* pix format */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 0x8);
+		/* burst size */
+		ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 31);
+		break;
+	case V4L2_PIX_FMT_RGB32:
+		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_32);
+		break;
+	case V4L2_PIX_FMT_RGB565:
+		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_16);
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_32);
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_24);
+		break;
+	case V4L2_PIX_FMT_BGR24:
+		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_24);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_fmt);
+
+int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
+		struct ipu_image *image)
+{
+	struct v4l2_pix_format *pix = &image->pix;
+	int y_offset, u_offset, v_offset;
+
+	pr_debug("%s: resolution: %dx%d stride: %d\n",
+			__func__, pix->width, pix->height,
+			pix->bytesperline);
+
+	ipu_cpmem_set_resolution(cpmem, image->rect.width,
+			image->rect.height);
+	ipu_cpmem_set_stride(cpmem, pix->bytesperline);
+
+	ipu_cpmem_set_fmt(cpmem, pix->pixelformat);
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+		y_offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
+		u_offset = U_OFFSET(pix, image->rect.left,
+				image->rect.top) - y_offset;
+		v_offset = V_OFFSET(pix, image->rect.left,
+				image->rect.top) - y_offset;
+
+		ipu_cpmem_set_yuv_planar_full(cpmem, pix->pixelformat,
+				pix->bytesperline, u_offset, v_offset);
+		ipu_cpmem_set_buffer(cpmem, 0, image->phys + y_offset);
+		break;
+	case V4L2_PIX_FMT_UYVY:
+		ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+				image->rect.left * 2 +
+				image->rect.top * image->pix.bytesperline);
+		break;
+	case V4L2_PIX_FMT_RGB32:
+	case V4L2_PIX_FMT_BGR32:
+		ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+				image->rect.left * 4 +
+				image->rect.top * image->pix.bytesperline);
+		break;
+	case V4L2_PIX_FMT_RGB565:
+		ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+				image->rect.left * 2 +
+				image->rect.top * image->pix.bytesperline);
+		break;
+	case V4L2_PIX_FMT_RGB24:
+	case V4L2_PIX_FMT_BGR24:
+		ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+				image->rect.left * 3 +
+				image->rect.top * image->pix.bytesperline);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_image);
+
+enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat)
+{
+	switch (pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+	case V4L2_PIX_FMT_UYVY:
+	case V4L2_PIX_FMT_YVYU:
+		return IPUV3_COLORSPACE_YUV;
+	case V4L2_PIX_FMT_RGB32:
+	case V4L2_PIX_FMT_BGR32:
+	case V4L2_PIX_FMT_RGB24:
+	case V4L2_PIX_FMT_BGR24:
+	case V4L2_PIX_FMT_RGB565:
+		return IPUV3_COLORSPACE_RGB;
+	default:
+		return IPUV3_COLORSPACE_UNKNOWN;
+	}
+}
+EXPORT_SYMBOL_GPL(ipu_pixelformat_to_colorspace);
+
+struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned num)
+{
+	struct ipuv3_channel *channel;
+
+	dev_dbg(ipu->dev, "%s %d\n", __func__, num);
+
+	if (num > 63)
+		return ERR_PTR(-ENODEV);
+
+	mutex_lock(&ipu->channel_lock);
+
+	channel = &ipu->channel[num];
+
+	if (channel->busy) {
+		channel = ERR_PTR(-EBUSY);
+		goto out;
+	}
+
+	channel->busy = 1;
+	channel->num = num;
+
+out:
+	mutex_unlock(&ipu->channel_lock);
+
+	return channel;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_get);
+
+void ipu_idmac_put(struct ipuv3_channel *channel)
+{
+	struct ipu_soc *ipu = channel->ipu;
+
+	dev_dbg(ipu->dev, "%s %d\n", __func__, channel->num);
+
+	mutex_lock(&ipu->channel_lock);
+
+	channel->busy = 0;
+
+	mutex_unlock(&ipu->channel_lock);
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_put);
+
+#define idma_mask(ch)			(1 << (ch & 0x1f))
+
+void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
+		bool doublebuffer)
+{
+	struct ipu_soc *ipu = channel->ipu;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&ipu->lock, flags);
+
+	reg = ipu_cm_read(ipu, IPU_CHA_DB_MODE_SEL(channel->num));
+	if (doublebuffer)
+		reg |= idma_mask(channel->num);
+	else
+		reg &= ~idma_mask(channel->num);
+	ipu_cm_write(ipu, reg, IPU_CHA_DB_MODE_SEL(channel->num));
+
+	spin_unlock_irqrestore(&ipu->lock, flags);
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_set_double_buffer);
+
+int ipu_module_enable(struct ipu_soc *ipu, u32 mask)
+{
+	unsigned long lock_flags;
+	u32 val;
+
+	spin_lock_irqsave(&ipu->lock, lock_flags);
+
+	val = ipu_cm_read(ipu, IPU_DISP_GEN);
+
+	if (mask & IPU_CONF_DI0_EN)
+		val |= IPU_DI0_COUNTER_RELEASE;
+	if (mask & IPU_CONF_DI1_EN)
+		val |= IPU_DI1_COUNTER_RELEASE;
+
+	ipu_cm_write(ipu, val, IPU_DISP_GEN);
+
+	val = ipu_cm_read(ipu, IPU_CONF);
+	val |= mask;
+	ipu_cm_write(ipu, val, IPU_CONF);
+
+	spin_unlock_irqrestore(&ipu->lock, lock_flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_module_enable);
+
+int ipu_module_disable(struct ipu_soc *ipu, u32 mask)
+{
+	unsigned long lock_flags;
+	u32 val;
+
+	spin_lock_irqsave(&ipu->lock, lock_flags);
+
+	val = ipu_cm_read(ipu, IPU_CONF);
+	val &= ~mask;
+	ipu_cm_write(ipu, val, IPU_CONF);
+
+	val = ipu_cm_read(ipu, IPU_DISP_GEN);
+
+	if (mask & IPU_CONF_DI0_EN)
+		val &= ~IPU_DI0_COUNTER_RELEASE;
+	if (mask & IPU_CONF_DI1_EN)
+		val &= ~IPU_DI1_COUNTER_RELEASE;
+
+	ipu_cm_write(ipu, val, IPU_DISP_GEN);
+
+	spin_unlock_irqrestore(&ipu->lock, lock_flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_module_disable);
+
+void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num)
+{
+	struct ipu_soc *ipu = channel->ipu;
+	unsigned int chno = channel->num;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ipu->lock, flags);
+
+	/* Mark buffer as ready. */
+	if (buf_num == 0)
+		ipu_cm_write(ipu, idma_mask(chno), IPU_CHA_BUF0_RDY(chno));
+	else
+		ipu_cm_write(ipu, idma_mask(chno), IPU_CHA_BUF1_RDY(chno));
+
+	spin_unlock_irqrestore(&ipu->lock, flags);
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_select_buffer);
+
+int ipu_idmac_enable_channel(struct ipuv3_channel *channel)
+{
+	struct ipu_soc *ipu = channel->ipu;
+	u32 val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ipu->lock, flags);
+
+	val = ipu_idmac_read(ipu, IDMAC_CHA_EN(channel->num));
+	val |= idma_mask(channel->num);
+	ipu_idmac_write(ipu, val, IDMAC_CHA_EN(channel->num));
+
+	spin_unlock_irqrestore(&ipu->lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_enable_channel);
+
+int ipu_idmac_disable_channel(struct ipuv3_channel *channel)
+{
+	struct ipu_soc *ipu = channel->ipu;
+	u32 val;
+	unsigned long flags;
+	unsigned long timeout;
+
+	timeout = jiffies + msecs_to_jiffies(50);
+	while (ipu_idmac_read(ipu, IDMAC_CHA_BUSY(channel->num)) &
+			idma_mask(channel->num)) {
+		if (time_after(jiffies, timeout)) {
+			dev_warn(ipu->dev, "disabling busy idmac channel %d\n",
+					channel->num);
+			break;
+		}
+		cpu_relax();
+	}
+
+	spin_lock_irqsave(&ipu->lock, flags);
+
+	/* Disable DMA channel(s) */
+	val = ipu_idmac_read(ipu, IDMAC_CHA_EN(channel->num));
+	val &= ~idma_mask(channel->num);
+	ipu_idmac_write(ipu, val, IDMAC_CHA_EN(channel->num));
+
+	/* Set channel buffers NOT to be ready */
+	ipu_cm_write(ipu, 0xf0000000, IPU_GPR); /* write one to clear */
+
+	if (ipu_cm_read(ipu, IPU_CHA_BUF0_RDY(channel->num)) &
+			idma_mask(channel->num)) {
+		ipu_cm_write(ipu, idma_mask(channel->num),
+			     IPU_CHA_BUF0_RDY(channel->num));
+	}
+
+	if (ipu_cm_read(ipu, IPU_CHA_BUF1_RDY(channel->num)) &
+			idma_mask(channel->num)) {
+		ipu_cm_write(ipu, idma_mask(channel->num),
+			     IPU_CHA_BUF1_RDY(channel->num));
+	}
+
+	ipu_cm_write(ipu, 0x0, IPU_GPR); /* write one to set */
+
+	/* Reset the double buffer */
+	val = ipu_cm_read(ipu, IPU_CHA_DB_MODE_SEL(channel->num));
+	val &= ~idma_mask(channel->num);
+	ipu_cm_write(ipu, val, IPU_CHA_DB_MODE_SEL(channel->num));
+
+	spin_unlock_irqrestore(&ipu->lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_disable_channel);
+
+static int ipu_reset(struct ipu_soc *ipu)
+{
+	unsigned long timeout;
+
+	ipu_cm_write(ipu, 0x807FFFFF, IPU_MEM_RST);
+
+	timeout = jiffies + msecs_to_jiffies(1000);
+	while (ipu_cm_read(ipu, IPU_MEM_RST) & 0x80000000) {
+		if (time_after(jiffies, timeout))
+			return -ETIME;
+		cpu_relax();
+	}
+
+	mdelay(300);
+
+	return 0;
+}
+
+struct ipu_devtype {
+	const char *name;
+	unsigned long cm_ofs;
+	unsigned long cpmem_ofs;
+	unsigned long srm_ofs;
+	unsigned long tpm_ofs;
+	unsigned long disp0_ofs;
+	unsigned long disp1_ofs;
+	unsigned long dc_tmpl_ofs;
+	unsigned long vdi_ofs;
+	enum ipuv3_type type;
+};
+
+static struct ipu_devtype ipu_type_imx51 = {
+	.name = "IPUv3EX",
+	.cm_ofs = 0x1e000000,
+	.cpmem_ofs = 0x1f000000,
+	.srm_ofs = 0x1f040000,
+	.tpm_ofs = 0x1f060000,
+	.disp0_ofs = 0x1e040000,
+	.disp1_ofs = 0x1e048000,
+	.dc_tmpl_ofs = 0x1f080000,
+	.vdi_ofs = 0x1e068000,
+	.type = IPUV3EX,
+};
+
+static struct ipu_devtype ipu_type_imx53 = {
+	.name = "IPUv3M",
+	.cm_ofs = 0x06000000,
+	.cpmem_ofs = 0x07000000,
+	.srm_ofs = 0x07040000,
+	.tpm_ofs = 0x07060000,
+	.disp0_ofs = 0x06040000,
+	.disp1_ofs = 0x06048000,
+	.dc_tmpl_ofs = 0x07080000,
+	.vdi_ofs = 0x06068000,
+	.type = IPUV3M,
+};
+
+static struct ipu_devtype ipu_type_imx6q = {
+	.name = "IPUv3H",
+	.cm_ofs = 0x00200000,
+	.cpmem_ofs = 0x00300000,
+	.srm_ofs = 0x00340000,
+	.tpm_ofs = 0x00360000,
+	.disp0_ofs = 0x00240000,
+	.disp1_ofs = 0x00248000,
+	.dc_tmpl_ofs = 0x00380000,
+	.vdi_ofs = 0x00268000,
+	.type = IPUV3H,
+};
+
+static const struct of_device_id imx_ipu_dt_ids[] = {
+	{ .compatible = "fsl,imx51-ipu", .data = &ipu_type_imx51, },
+	{ .compatible = "fsl,imx53-ipu", .data = &ipu_type_imx53, },
+	{ .compatible = "fsl,imx6q-ipu", .data = &ipu_type_imx6q, },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_ipu_dt_ids);
+
+static int ipu_submodules_init(struct ipu_soc *ipu,
+		struct platform_device *pdev, unsigned long ipu_base,
+		struct clk *ipu_clk)
+{
+	char *unit;
+	int ret;
+	struct device *dev = &pdev->dev;
+	const struct ipu_devtype *devtype = ipu->devtype;
+
+	ret = ipu_di_init(ipu, dev, 0, ipu_base + devtype->disp0_ofs,
+			IPU_CONF_DI0_EN, ipu_clk);
+	if (ret) {
+		unit = "di0";
+		goto err_di_0;
+	}
+
+	ret = ipu_di_init(ipu, dev, 1, ipu_base + devtype->disp1_ofs,
+			IPU_CONF_DI1_EN, ipu_clk);
+	if (ret) {
+		unit = "di1";
+		goto err_di_1;
+	}
+
+	ret = ipu_dc_init(ipu, dev, ipu_base + devtype->cm_ofs +
+			IPU_CM_DC_REG_OFS, ipu_base + devtype->dc_tmpl_ofs);
+	if (ret) {
+		unit = "dc_template";
+		goto err_dc;
+	}
+
+	ret = ipu_dmfc_init(ipu, dev, ipu_base +
+			devtype->cm_ofs + IPU_CM_DMFC_REG_OFS, ipu_clk);
+	if (ret) {
+		unit = "dmfc";
+		goto err_dmfc;
+	}
+
+	ret = ipu_dp_init(ipu, dev, ipu_base + devtype->srm_ofs);
+	if (ret) {
+		unit = "dp";
+		goto err_dp;
+	}
+
+	return 0;
+
+err_dp:
+	ipu_dmfc_exit(ipu);
+err_dmfc:
+	ipu_dc_exit(ipu);
+err_dc:
+	ipu_di_exit(ipu, 1);
+err_di_1:
+	ipu_di_exit(ipu, 0);
+err_di_0:
+	dev_err(&pdev->dev, "init %s failed with %d\n", unit, ret);
+	return ret;
+}
+
+static void ipu_irq_handle(struct ipu_soc *ipu, const int *regs, int num_regs)
+{
+	unsigned long status;
+	int i, bit, irq_base;
+
+	for (i = 0; i < num_regs; i++) {
+
+		status = ipu_cm_read(ipu, IPU_INT_STAT(regs[i]));
+		status &= ipu_cm_read(ipu, IPU_INT_CTRL(regs[i]));
+
+		irq_base = ipu->irq_start + regs[i] * 32;
+		for_each_set_bit(bit, &status, 32)
+			generic_handle_irq(irq_base + bit);
+	}
+}
+
+static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
+	const int int_reg[] = { 0, 1, 2, 3, 10, 11, 12, 13, 14};
+	struct irq_chip *chip = irq_get_chip(irq);
+
+	chained_irq_enter(chip, desc);
+
+	ipu_irq_handle(ipu, int_reg, ARRAY_SIZE(int_reg));
+
+	chained_irq_exit(chip, desc);
+}
+
+static void ipu_err_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
+	const int int_reg[] = { 4, 5, 8, 9};
+	struct irq_chip *chip = irq_get_chip(irq);
+
+	chained_irq_enter(chip, desc);
+
+	ipu_irq_handle(ipu, int_reg, ARRAY_SIZE(int_reg));
+
+	chained_irq_exit(chip, desc);
+}
+
+static void ipu_ack_irq(struct irq_data *d)
+{
+	struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+	unsigned int irq = d->irq - ipu->irq_start;
+
+	ipu_cm_write(ipu, 1 << (irq % 32), IPU_INT_STAT(irq / 32));
+}
+
+static void ipu_unmask_irq(struct irq_data *d)
+{
+	struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+	unsigned int irq = d->irq - ipu->irq_start;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&ipu->lock, flags);
+
+	reg = ipu_cm_read(ipu, IPU_INT_CTRL(irq / 32));
+	reg |= 1 << (irq % 32);
+	ipu_cm_write(ipu, reg, IPU_INT_CTRL(irq / 32));
+
+	spin_unlock_irqrestore(&ipu->lock, flags);
+}
+
+static void ipu_mask_irq(struct irq_data *d)
+{
+	struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+	unsigned int irq = d->irq - ipu->irq_start;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&ipu->lock, flags);
+
+	reg = ipu_cm_read(ipu, IPU_INT_CTRL(irq / 32));
+	reg &= ~(1 << (irq % 32));
+	ipu_cm_write(ipu, reg, IPU_INT_CTRL(irq / 32));
+
+	spin_unlock_irqrestore(&ipu->lock, flags);
+}
+
+static struct irq_chip ipu_irq_chip = {
+	.name = "IPU",
+	.irq_ack = ipu_ack_irq,
+	.irq_mask = ipu_mask_irq,
+	.irq_unmask = ipu_unmask_irq,
+};
+
+int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
+		enum ipu_channel_irq irq_type)
+{
+	return ipu->irq_start + irq_type + channel->num;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_channel_irq);
+
+static void ipu_submodules_exit(struct ipu_soc *ipu)
+{
+	ipu_dp_exit(ipu);
+	ipu_dmfc_exit(ipu);
+	ipu_dc_exit(ipu);
+	ipu_di_exit(ipu, 1);
+	ipu_di_exit(ipu, 0);
+}
+
+static int platform_remove_devices_fn(struct device *dev, void *unused)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	platform_device_unregister(pdev);
+
+	return 0;
+}
+
+static void platform_device_unregister_children(struct platform_device *pdev)
+{
+	device_for_each_child(&pdev->dev, NULL, platform_remove_devices_fn);
+}
+
+struct ipu_platform_reg {
+	struct ipu_client_platformdata pdata;
+	const char *name;
+};
+
+static const struct ipu_platform_reg client_reg[] = {
+	{
+		.pdata = {
+			.di = 0,
+			.dc = 5,
+			.dp = IPU_DP_FLOW_SYNC_BG,
+			.dma[0] = IPUV3_CHANNEL_MEM_BG_SYNC,
+			.dma[1] = -EINVAL,
+		},
+		.name = "imx-ipuv3-crtc",
+	}, {
+		.pdata = {
+			.di = 1,
+			.dc = 1,
+			.dp = -EINVAL,
+			.dma[0] = IPUV3_CHANNEL_MEM_DC_SYNC,
+			.dma[1] = -EINVAL,
+		},
+		.name = "imx-ipuv3-crtc",
+	},
+};
+
+static int ipu_client_id;
+
+static int ipu_add_subdevice_pdata(struct device *dev,
+		const struct ipu_platform_reg *reg)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_data(dev, reg->name, ipu_client_id++,
+			&reg->pdata, sizeof(struct ipu_platform_reg));
+
+	return pdev ? 0 : -EINVAL;
+}
+
+static int ipu_add_client_devices(struct ipu_soc *ipu)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
+		const struct ipu_platform_reg *reg = &client_reg[i];
+		ret = ipu_add_subdevice_pdata(ipu->dev, reg);
+		if (ret)
+			goto err_register;
+	}
+
+	return 0;
+
+err_register:
+	platform_device_unregister_children(to_platform_device(ipu->dev));
+
+	return ret;
+}
+
+static int ipu_irq_init(struct ipu_soc *ipu)
+{
+	int i;
+
+	ipu->irq_start = irq_alloc_descs(-1, 0, IPU_NUM_IRQS, 0);
+	if (ipu->irq_start < 0)
+		return ipu->irq_start;
+
+	for (i = ipu->irq_start; i < ipu->irq_start + IPU_NUM_IRQS; i++) {
+		irq_set_chip_and_handler(i, &ipu_irq_chip, handle_level_irq);
+		set_irq_flags(i, IRQF_VALID);
+		irq_set_chip_data(i, ipu);
+	}
+
+	irq_set_chained_handler(ipu->irq_sync, ipu_irq_handler);
+	irq_set_handler_data(ipu->irq_sync, ipu);
+	irq_set_chained_handler(ipu->irq_err, ipu_err_irq_handler);
+	irq_set_handler_data(ipu->irq_err, ipu);
+
+	return 0;
+}
+
+static void ipu_irq_exit(struct ipu_soc *ipu)
+{
+	int i;
+
+	irq_set_chained_handler(ipu->irq_err, NULL);
+	irq_set_handler_data(ipu->irq_err, NULL);
+	irq_set_chained_handler(ipu->irq_sync, NULL);
+	irq_set_handler_data(ipu->irq_sync, NULL);
+
+	for (i = ipu->irq_start; i < ipu->irq_start + IPU_NUM_IRQS; i++) {
+		set_irq_flags(i, 0);
+		irq_set_chip(i, NULL);
+		irq_set_chip_data(i, NULL);
+	}
+
+	irq_free_descs(ipu->irq_start, IPU_NUM_IRQS);
+}
+
+static int __devinit ipu_probe(struct platform_device *pdev)
+{
+	const struct of_device_id *of_id =
+			of_match_device(imx_ipu_dt_ids, &pdev->dev);
+	struct ipu_soc *ipu;
+	struct resource *res;
+	unsigned long ipu_base;
+	int i, ret, irq_sync, irq_err;
+	const struct ipu_devtype *devtype;
+
+	devtype = of_id->data;
+
+	dev_info(&pdev->dev, "Initializing %s\n", devtype->name);
+
+	irq_sync = platform_get_irq(pdev, 0);
+	irq_err = platform_get_irq(pdev, 1);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	dev_info(&pdev->dev, "irq_sync: %d irq_err: %d\n",
+			irq_sync, irq_err);
+
+	if (!res || irq_sync < 0 || irq_err < 0)
+		return -ENODEV;
+
+	ipu_base = res->start;
+
+	ipu = devm_kzalloc(&pdev->dev, sizeof(*ipu), GFP_KERNEL);
+	if (!ipu)
+		return -ENODEV;
+
+	for (i = 0; i < 64; i++)
+		ipu->channel[i].ipu = ipu;
+	ipu->devtype = devtype;
+	ipu->ipu_type = devtype->type;
+
+	spin_lock_init(&ipu->lock);
+	mutex_init(&ipu->channel_lock);
+
+	dev_info(&pdev->dev, "cm_reg:   0x%08lx\n",
+			ipu_base + devtype->cm_ofs);
+	dev_info(&pdev->dev, "idmac:    0x%08lx\n",
+			ipu_base + devtype->cm_ofs + IPU_CM_IDMAC_REG_OFS);
+	dev_info(&pdev->dev, "cpmem:    0x%08lx\n",
+			ipu_base + devtype->cpmem_ofs);
+	dev_info(&pdev->dev, "disp0:    0x%08lx\n",
+			ipu_base + devtype->disp0_ofs);
+	dev_info(&pdev->dev, "disp1:    0x%08lx\n",
+			ipu_base + devtype->disp1_ofs);
+	dev_info(&pdev->dev, "srm:      0x%08lx\n",
+			ipu_base + devtype->srm_ofs);
+	dev_info(&pdev->dev, "tpm:      0x%08lx\n",
+			ipu_base + devtype->tpm_ofs);
+	dev_info(&pdev->dev, "dc:       0x%08lx\n",
+			ipu_base + devtype->cm_ofs + IPU_CM_DC_REG_OFS);
+	dev_info(&pdev->dev, "ic:       0x%08lx\n",
+			ipu_base + devtype->cm_ofs + IPU_CM_IC_REG_OFS);
+	dev_info(&pdev->dev, "dmfc:     0x%08lx\n",
+			ipu_base + devtype->cm_ofs + IPU_CM_DMFC_REG_OFS);
+	dev_info(&pdev->dev, "vdi:      0x%08lx\n",
+			ipu_base + devtype->vdi_ofs);
+
+	ipu->cm_reg = devm_ioremap(&pdev->dev,
+			ipu_base + devtype->cm_ofs, PAGE_SIZE);
+	ipu->idmac_reg = devm_ioremap(&pdev->dev,
+			ipu_base + devtype->cm_ofs + IPU_CM_IDMAC_REG_OFS,
+			PAGE_SIZE);
+	ipu->cpmem_base = devm_ioremap(&pdev->dev,
+			ipu_base + devtype->cpmem_ofs, PAGE_SIZE);
+
+	if (!ipu->cm_reg || !ipu->idmac_reg || !ipu->cpmem_base) {
+		ret = -ENOMEM;
+		goto failed_ioremap;
+	}
+
+	ipu->clk = devm_clk_get(&pdev->dev, "bus");
+	if (IS_ERR(ipu->clk)) {
+		ret = PTR_ERR(ipu->clk);
+		dev_err(&pdev->dev, "clk_get failed with %d", ret);
+		goto failed_clk_get;
+	}
+
+	platform_set_drvdata(pdev, ipu);
+
+	clk_prepare_enable(ipu->clk);
+
+	ipu->dev = &pdev->dev;
+	ipu->irq_sync = irq_sync;
+	ipu->irq_err = irq_err;
+
+	ret = ipu_irq_init(ipu);
+	if (ret)
+		goto out_failed_irq;
+
+	ipu_reset(ipu);
+
+	/* Set MCU_T to divide MCU access window into 2 */
+	ipu_cm_write(ipu, 0x00400000L | (IPU_MCU_T_DEFAULT << 18),
+			IPU_DISP_GEN);
+
+	ret = ipu_submodules_init(ipu, pdev, ipu_base, ipu->clk);
+	if (ret)
+		goto failed_submodules_init;
+
+	ret = ipu_add_client_devices(ipu);
+	if (ret) {
+		dev_err(&pdev->dev, "adding client devices failed with %d\n",
+				ret);
+		goto failed_add_clients;
+	}
+
+	return 0;
+
+failed_add_clients:
+	ipu_submodules_exit(ipu);
+failed_submodules_init:
+	ipu_irq_exit(ipu);
+out_failed_irq:
+	clk_disable_unprepare(ipu->clk);
+failed_clk_get:
+failed_ioremap:
+	return ret;
+}
+
+static int __devexit ipu_remove(struct platform_device *pdev)
+{
+	struct ipu_soc *ipu = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	platform_device_unregister_children(pdev);
+	ipu_submodules_exit(ipu);
+	ipu_irq_exit(ipu);
+
+	clk_disable_unprepare(ipu->clk);
+
+	return 0;
+}
+
+static struct platform_driver imx_ipu_driver = {
+	.driver = {
+		.name = "imx-ipuv3",
+		.of_match_table = imx_ipu_dt_ids,
+	},
+	.probe = ipu_probe,
+	.remove = __devexit_p(ipu_remove),
+};
+
+module_platform_driver(imx_ipu_driver);
+
+MODULE_DESCRIPTION("i.MX IPU v3 driver");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
new file mode 100644
index 00000000000..93c7579417b
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
@@ -0,0 +1,372 @@
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+#define DC_MAP_CONF_PTR(n)	(0x108 + ((n) & ~0x1) * 2)
+#define DC_MAP_CONF_VAL(n)	(0x144 + ((n) & ~0x1) * 2)
+
+#define DC_EVT_NF		0
+#define DC_EVT_NL		1
+#define DC_EVT_EOF		2
+#define DC_EVT_NFIELD		3
+#define DC_EVT_EOL		4
+#define DC_EVT_EOFIELD		5
+#define DC_EVT_NEW_ADDR		6
+#define DC_EVT_NEW_CHAN		7
+#define DC_EVT_NEW_DATA		8
+
+#define DC_EVT_NEW_ADDR_W_0	0
+#define DC_EVT_NEW_ADDR_W_1	1
+#define DC_EVT_NEW_CHAN_W_0	2
+#define DC_EVT_NEW_CHAN_W_1	3
+#define DC_EVT_NEW_DATA_W_0	4
+#define DC_EVT_NEW_DATA_W_1	5
+#define DC_EVT_NEW_ADDR_R_0	6
+#define DC_EVT_NEW_ADDR_R_1	7
+#define DC_EVT_NEW_CHAN_R_0	8
+#define DC_EVT_NEW_CHAN_R_1	9
+#define DC_EVT_NEW_DATA_R_0	10
+#define DC_EVT_NEW_DATA_R_1	11
+
+#define DC_WR_CH_CONF		0x0
+#define DC_WR_CH_ADDR		0x4
+#define DC_RL_CH(evt)		(8 + ((evt) & ~0x1) * 2)
+
+#define DC_GEN			0xd4
+#define DC_DISP_CONF1(disp)	(0xd8 + (disp) * 4)
+#define DC_DISP_CONF2(disp)	(0xe8 + (disp) * 4)
+#define DC_STAT			0x1c8
+
+#define WROD(lf)		(0x18 | ((lf) << 1))
+#define WRG			0x01
+
+#define SYNC_WAVE 0
+
+#define DC_GEN_SYNC_1_6_SYNC	(2 << 1)
+#define DC_GEN_SYNC_PRIORITY_1	(1 << 7)
+
+#define DC_WR_CH_CONF_WORD_SIZE_8		(0 << 0)
+#define DC_WR_CH_CONF_WORD_SIZE_16		(1 << 0)
+#define DC_WR_CH_CONF_WORD_SIZE_24		(2 << 0)
+#define DC_WR_CH_CONF_WORD_SIZE_32		(3 << 0)
+#define DC_WR_CH_CONF_DISP_ID_PARALLEL(i)	(((i) & 0x1) << 3)
+#define DC_WR_CH_CONF_DISP_ID_SERIAL		(2 << 3)
+#define DC_WR_CH_CONF_DISP_ID_ASYNC		(3 << 4)
+#define DC_WR_CH_CONF_FIELD_MODE		(1 << 9)
+#define DC_WR_CH_CONF_PROG_TYPE_NORMAL		(4 << 5)
+#define DC_WR_CH_CONF_PROG_TYPE_MASK		(7 << 5)
+#define DC_WR_CH_CONF_PROG_DI_ID		(1 << 2)
+#define DC_WR_CH_CONF_PROG_DISP_ID(i)		(((i) & 0x1) << 3)
+
+#define IPU_DC_NUM_CHANNELS	10
+
+struct ipu_dc_priv;
+
+enum ipu_dc_map {
+	IPU_DC_MAP_RGB24,
+	IPU_DC_MAP_RGB565,
+};
+
+struct ipu_dc {
+	/* The display interface number assigned to this dc channel */
+	unsigned int		di;
+	void __iomem		*base;
+	struct ipu_dc_priv	*priv;
+	int			chno;
+	bool			in_use;
+};
+
+struct ipu_dc_priv {
+	void __iomem		*dc_reg;
+	void __iomem		*dc_tmpl_reg;
+	struct ipu_soc		*ipu;
+	struct device		*dev;
+	struct ipu_dc		channels[IPU_DC_NUM_CHANNELS];
+	struct mutex		mutex;
+};
+
+static void dc_link_event(struct ipu_dc *dc, int event, int addr, int priority)
+{
+	u32 reg;
+
+	reg = readl(dc->base + DC_RL_CH(event));
+	reg &= ~(0xffff << (16 * (event & 0x1)));
+	reg |= ((addr << 8) | priority) << (16 * (event & 0x1));
+	writel(reg, dc->base + DC_RL_CH(event));
+}
+
+static void dc_write_tmpl(struct ipu_dc *dc, int word, u32 opcode, u32 operand,
+		int map, int wave, int glue, int sync)
+{
+	struct ipu_dc_priv *priv = dc->priv;
+	u32 reg;
+	int stop = 1;
+
+	reg = sync | glue << 4 | ++wave << 11 | ++map << 15 | ((operand << 20) & 0xfff00000);
+	writel(reg, priv->dc_tmpl_reg + word * 8);
+	reg = operand >> 12 | opcode << 4 | stop << 9;
+	writel(reg, priv->dc_tmpl_reg + word * 8 + 4);
+}
+
+static int ipu_pixfmt_to_map(u32 fmt)
+{
+	switch (fmt) {
+	case V4L2_PIX_FMT_RGB24:
+		return IPU_DC_MAP_RGB24;
+	case V4L2_PIX_FMT_RGB565:
+		return IPU_DC_MAP_RGB565;
+	default:
+		return -EINVAL;
+	}
+}
+
+int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
+		u32 pixel_fmt, u32 width)
+{
+	struct ipu_dc_priv *priv = dc->priv;
+	u32 reg = 0, map;
+
+	dc->di = ipu_di_get_num(di);
+
+	map = ipu_pixfmt_to_map(pixel_fmt);
+	if (map < 0) {
+		dev_dbg(priv->dev, "IPU_DISP: No MAP\n");
+		return -EINVAL;
+	}
+
+	if (interlaced) {
+		dc_link_event(dc, DC_EVT_NL, 0, 3);
+		dc_link_event(dc, DC_EVT_EOL, 0, 2);
+		dc_link_event(dc, DC_EVT_NEW_DATA, 0, 1);
+
+		/* Init template microcode */
+		dc_write_tmpl(dc, 0, WROD(0), 0, map, SYNC_WAVE, 0, 8);
+	} else {
+		if (dc->di) {
+			dc_link_event(dc, DC_EVT_NL, 2, 3);
+			dc_link_event(dc, DC_EVT_EOL, 3, 2);
+			dc_link_event(dc, DC_EVT_NEW_DATA, 4, 1);
+			/* Init template microcode */
+			dc_write_tmpl(dc, 2, WROD(0), 0, map, SYNC_WAVE, 8, 5);
+			dc_write_tmpl(dc, 3, WROD(0), 0, map, SYNC_WAVE, 4, 5);
+			dc_write_tmpl(dc, 4, WROD(0), 0, map, SYNC_WAVE, 0, 5);
+		} else {
+			dc_link_event(dc, DC_EVT_NL, 5, 3);
+			dc_link_event(dc, DC_EVT_EOL, 6, 2);
+			dc_link_event(dc, DC_EVT_NEW_DATA, 7, 1);
+			/* Init template microcode */
+			dc_write_tmpl(dc, 5, WROD(0), 0, map, SYNC_WAVE, 8, 5);
+			dc_write_tmpl(dc, 6, WROD(0), 0, map, SYNC_WAVE, 4, 5);
+			dc_write_tmpl(dc, 7, WROD(0), 0, map, SYNC_WAVE, 0, 5);
+		}
+	}
+	dc_link_event(dc, DC_EVT_NF, 0, 0);
+	dc_link_event(dc, DC_EVT_NFIELD, 0, 0);
+	dc_link_event(dc, DC_EVT_EOF, 0, 0);
+	dc_link_event(dc, DC_EVT_EOFIELD, 0, 0);
+	dc_link_event(dc, DC_EVT_NEW_CHAN, 0, 0);
+	dc_link_event(dc, DC_EVT_NEW_ADDR, 0, 0);
+
+	reg = readl(dc->base + DC_WR_CH_CONF);
+	if (interlaced)
+		reg |= DC_WR_CH_CONF_FIELD_MODE;
+	else
+		reg &= ~DC_WR_CH_CONF_FIELD_MODE;
+	writel(reg, dc->base + DC_WR_CH_CONF);
+
+	writel(0x0, dc->base + DC_WR_CH_ADDR);
+	writel(width, priv->dc_reg + DC_DISP_CONF2(dc->di));
+
+	ipu_module_enable(priv->ipu, IPU_CONF_DC_EN);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dc_init_sync);
+
+void ipu_dc_enable_channel(struct ipu_dc *dc)
+{
+	int di;
+	u32 reg;
+
+	di = dc->di;
+
+	reg = readl(dc->base + DC_WR_CH_CONF);
+	reg |= DC_WR_CH_CONF_PROG_TYPE_NORMAL;
+	writel(reg, dc->base + DC_WR_CH_CONF);
+}
+EXPORT_SYMBOL_GPL(ipu_dc_enable_channel);
+
+void ipu_dc_disable_channel(struct ipu_dc *dc)
+{
+	struct ipu_dc_priv *priv = dc->priv;
+	u32 val;
+	int irq = 0, timeout = 50;
+
+	if (dc->chno == 1)
+		irq = IPU_IRQ_DC_FC_1;
+	else if (dc->chno == 5)
+		irq = IPU_IRQ_DP_SF_END;
+	else
+		return;
+
+	/* should wait for the interrupt here */
+	mdelay(50);
+
+	if (dc->di == 0)
+		val = 0x00000002;
+	else
+		val = 0x00000020;
+
+	/* Wait for DC triple buffer to empty */
+	while ((readl(priv->dc_reg + DC_STAT) & val) != val) {
+		msleep(2);
+		timeout -= 2;
+		if (timeout <= 0)
+			break;
+	}
+
+	val = readl(dc->base + DC_WR_CH_CONF);
+	val &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
+	writel(val, dc->base + DC_WR_CH_CONF);
+}
+EXPORT_SYMBOL_GPL(ipu_dc_disable_channel);
+
+static void ipu_dc_map_config(struct ipu_dc_priv *priv, enum ipu_dc_map map,
+		int byte_num, int offset, int mask)
+{
+	int ptr = map * 3 + byte_num;
+	u32 reg;
+
+	reg = readl(priv->dc_reg + DC_MAP_CONF_VAL(ptr));
+	reg &= ~(0xffff << (16 * (ptr & 0x1)));
+	reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1));
+	writel(reg, priv->dc_reg + DC_MAP_CONF_VAL(ptr));
+
+	reg = readl(priv->dc_reg + DC_MAP_CONF_PTR(map));
+	reg &= ~(0x1f << ((16 * (map & 0x1)) + (5 * byte_num)));
+	reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num));
+	writel(reg, priv->dc_reg + DC_MAP_CONF_PTR(map));
+}
+
+static void ipu_dc_map_clear(struct ipu_dc_priv *priv, int map)
+{
+	u32 reg = readl(priv->dc_reg + DC_MAP_CONF_PTR(map));
+
+	writel(reg & ~(0xffff << (16 * (map & 0x1))),
+		     priv->dc_reg + DC_MAP_CONF_PTR(map));
+}
+
+struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel)
+{
+	struct ipu_dc_priv *priv = ipu->dc_priv;
+	struct ipu_dc *dc;
+
+	if (channel >= IPU_DC_NUM_CHANNELS)
+		return ERR_PTR(-ENODEV);
+
+	dc = &priv->channels[channel];
+
+	mutex_lock(&priv->mutex);
+
+	if (dc->in_use) {
+		mutex_unlock(&priv->mutex);
+		return ERR_PTR(-EBUSY);
+	}
+
+	dc->in_use = 1;
+
+	mutex_unlock(&priv->mutex);
+
+	return dc;
+}
+EXPORT_SYMBOL_GPL(ipu_dc_get);
+
+void ipu_dc_put(struct ipu_dc *dc)
+{
+	struct ipu_dc_priv *priv = dc->priv;
+
+	mutex_lock(&priv->mutex);
+	dc->in_use = 0;
+	mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dc_put);
+
+int ipu_dc_init(struct ipu_soc *ipu, struct device *dev,
+		unsigned long base, unsigned long template_base)
+{
+	struct ipu_dc_priv *priv;
+	static int channel_offsets[] = { 0, 0x1c, 0x38, 0x54, 0x58, 0x5c,
+		0x78, 0, 0x94, 0xb4};
+	int i;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	mutex_init(&priv->mutex);
+
+	priv->dev = dev;
+	priv->ipu = ipu;
+	priv->dc_reg = devm_ioremap(dev, base, PAGE_SIZE);
+	priv->dc_tmpl_reg = devm_ioremap(dev, template_base, PAGE_SIZE);
+	if (!priv->dc_reg || !priv->dc_tmpl_reg)
+		return -ENOMEM;
+
+	for (i = 0; i < IPU_DC_NUM_CHANNELS; i++) {
+		priv->channels[i].chno = i;
+		priv->channels[i].priv = priv;
+		priv->channels[i].base = priv->dc_reg + channel_offsets[i];
+	}
+
+	writel(DC_WR_CH_CONF_WORD_SIZE_24 | DC_WR_CH_CONF_DISP_ID_PARALLEL(1) |
+			DC_WR_CH_CONF_PROG_DI_ID,
+			priv->channels[1].base + DC_WR_CH_CONF);
+	writel(DC_WR_CH_CONF_WORD_SIZE_24 | DC_WR_CH_CONF_DISP_ID_PARALLEL(0),
+			priv->channels[5].base + DC_WR_CH_CONF);
+
+	writel(DC_GEN_SYNC_1_6_SYNC | DC_GEN_SYNC_PRIORITY_1, priv->dc_reg + DC_GEN);
+
+	ipu->dc_priv = priv;
+
+	dev_dbg(dev, "DC base: 0x%08lx template base: 0x%08lx\n",
+			base, template_base);
+
+	/* rgb24 */
+	ipu_dc_map_clear(priv, IPU_DC_MAP_RGB24);
+	ipu_dc_map_config(priv, IPU_DC_MAP_RGB24, 0, 7, 0xff); /* blue */
+	ipu_dc_map_config(priv, IPU_DC_MAP_RGB24, 1, 15, 0xff); /* green */
+	ipu_dc_map_config(priv, IPU_DC_MAP_RGB24, 2, 23, 0xff); /* red */
+
+	/* rgb565 */
+	ipu_dc_map_clear(priv, IPU_DC_MAP_RGB565);
+	ipu_dc_map_config(priv, IPU_DC_MAP_RGB565, 0, 4, 0xf8); /* blue */
+	ipu_dc_map_config(priv, IPU_DC_MAP_RGB565, 1, 10, 0xfc); /* green */
+	ipu_dc_map_config(priv, IPU_DC_MAP_RGB565, 2, 15, 0xf8); /* red */
+
+	return 0;
+}
+
+void ipu_dc_exit(struct ipu_soc *ipu)
+{
+}
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-di.c b/drivers/staging/imx-drm/ipu-v3/ipu-di.c
new file mode 100644
index 00000000000..67d974f7be3
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-di.c
@@ -0,0 +1,700 @@
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+struct ipu_di {
+	void __iomem *base;
+	int id;
+	u32 module;
+	struct clk *clk_di;	/* display input clock */
+	struct clk *clk_ipu;	/* IPU bus clock */
+	struct clk *clk_di_pixel; /* resulting pixel clock */
+	struct clk_hw clk_hw_out;
+	char *clk_name;
+	bool inuse;
+	unsigned long clkflags;
+	struct ipu_soc *ipu;
+};
+
+static DEFINE_MUTEX(di_mutex);
+
+struct di_sync_config {
+	int run_count;
+	int run_src;
+	int offset_count;
+	int offset_src;
+	int repeat_count;
+	int cnt_clr_src;
+	int cnt_polarity_gen_en;
+	int cnt_polarity_clr_src;
+	int cnt_polarity_trigger_src;
+	int cnt_up;
+	int cnt_down;
+};
+
+enum di_pins {
+	DI_PIN11 = 0,
+	DI_PIN12 = 1,
+	DI_PIN13 = 2,
+	DI_PIN14 = 3,
+	DI_PIN15 = 4,
+	DI_PIN16 = 5,
+	DI_PIN17 = 6,
+	DI_PIN_CS = 7,
+
+	DI_PIN_SER_CLK = 0,
+	DI_PIN_SER_RS = 1,
+};
+
+enum di_sync_wave {
+	DI_SYNC_NONE = 0,
+	DI_SYNC_CLK = 1,
+	DI_SYNC_INT_HSYNC = 2,
+	DI_SYNC_HSYNC = 3,
+	DI_SYNC_VSYNC = 4,
+	DI_SYNC_DE = 6,
+};
+
+#define SYNC_WAVE 0
+
+#define DI_GENERAL		0x0000
+#define DI_BS_CLKGEN0		0x0004
+#define DI_BS_CLKGEN1		0x0008
+#define DI_SW_GEN0(gen)		(0x000c + 4 * ((gen) - 1))
+#define DI_SW_GEN1(gen)		(0x0030 + 4 * ((gen) - 1))
+#define DI_STP_REP(gen)		(0x0148 + 4 * (((gen) - 1)/2))
+#define DI_SYNC_AS_GEN		0x0054
+#define DI_DW_GEN(gen)		(0x0058 + 4 * (gen))
+#define DI_DW_SET(gen, set)	(0x0088 + 4 * ((gen) + 0xc * (set)))
+#define DI_SER_CONF		0x015c
+#define DI_SSC			0x0160
+#define DI_POL			0x0164
+#define DI_AW0			0x0168
+#define DI_AW1			0x016c
+#define DI_SCR_CONF		0x0170
+#define DI_STAT			0x0174
+
+#define DI_SW_GEN0_RUN_COUNT(x)			((x) << 19)
+#define DI_SW_GEN0_RUN_SRC(x)			((x) << 16)
+#define DI_SW_GEN0_OFFSET_COUNT(x)		((x) << 3)
+#define DI_SW_GEN0_OFFSET_SRC(x)		((x) << 0)
+
+#define DI_SW_GEN1_CNT_POL_GEN_EN(x)		((x) << 29)
+#define DI_SW_GEN1_CNT_CLR_SRC(x)		((x) << 25)
+#define DI_SW_GEN1_CNT_POL_TRIGGER_SRC(x)	((x) << 12)
+#define DI_SW_GEN1_CNT_POL_CLR_SRC(x)		((x) << 9)
+#define DI_SW_GEN1_CNT_DOWN(x)			((x) << 16)
+#define DI_SW_GEN1_CNT_UP(x)			(x)
+#define DI_SW_GEN1_AUTO_RELOAD			(0x10000000)
+
+#define DI_DW_GEN_ACCESS_SIZE_OFFSET		24
+#define DI_DW_GEN_COMPONENT_SIZE_OFFSET		16
+
+#define DI_GEN_POLARITY_1			(1 << 0)
+#define DI_GEN_POLARITY_2			(1 << 1)
+#define DI_GEN_POLARITY_3			(1 << 2)
+#define DI_GEN_POLARITY_4			(1 << 3)
+#define DI_GEN_POLARITY_5			(1 << 4)
+#define DI_GEN_POLARITY_6			(1 << 5)
+#define DI_GEN_POLARITY_7			(1 << 6)
+#define DI_GEN_POLARITY_8			(1 << 7)
+#define DI_GEN_POLARITY_DISP_CLK		(1 << 17)
+#define DI_GEN_DI_CLK_EXT			(1 << 20)
+#define DI_GEN_DI_VSYNC_EXT			(1 << 21)
+
+#define DI_POL_DRDY_DATA_POLARITY		(1 << 7)
+#define DI_POL_DRDY_POLARITY_15			(1 << 4)
+
+#define DI_VSYNC_SEL_OFFSET			13
+
+static inline u32 ipu_di_read(struct ipu_di *di, unsigned offset)
+{
+	return readl(di->base + offset);
+}
+
+static inline void ipu_di_write(struct ipu_di *di, u32 value, unsigned offset)
+{
+	writel(value, di->base + offset);
+}
+
+static int ipu_di_clk_calc_div(unsigned long inrate, unsigned long outrate)
+{
+	u64 tmp = inrate;
+	int div;
+
+	tmp *= 16;
+
+	do_div(tmp, outrate);
+
+	div = tmp;
+
+	if (div < 0x10)
+		div = 0x10;
+
+#ifdef WTF_IS_THIS
+	/*
+	 * Freescale has this in their Kernel. It is neither clear what
+	 * it does nor why it does it
+	 */
+	if (div & 0x10)
+		div &= ~0x7;
+	else {
+		/* Round up divider if it gets us closer to desired pix clk */
+		if ((div & 0xC) == 0xC) {
+			div += 0x10;
+			div &= ~0xF;
+		}
+	}
+#endif
+	return div;
+}
+
+static unsigned long clk_di_recalc_rate(struct clk_hw *hw,
+		unsigned long parent_rate)
+{
+	struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+	unsigned long outrate;
+	u32 div = ipu_di_read(di, DI_BS_CLKGEN0);
+
+	if (div < 0x10)
+		div = 0x10;
+
+	outrate = (parent_rate / div) * 16;
+
+	return outrate;
+}
+
+static long clk_di_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *prate)
+{
+	struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+	unsigned long outrate;
+	int div;
+	u32 val;
+
+	div = ipu_di_clk_calc_div(*prate, rate);
+
+	outrate = (*prate / div) * 16;
+
+	val = ipu_di_read(di, DI_GENERAL);
+
+	if (!(val & DI_GEN_DI_CLK_EXT) && outrate > *prate / 2)
+		outrate = *prate / 2;
+
+	dev_dbg(di->ipu->dev,
+		"%s: inrate: %ld div: 0x%08x outrate: %ld wanted: %ld\n",
+			__func__, *prate, div, outrate, rate);
+
+	return outrate;
+}
+
+static int clk_di_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+	int div;
+	u32 clkgen0;
+
+	clkgen0 = ipu_di_read(di, DI_BS_CLKGEN0) & ~0xfff;
+
+	div = ipu_di_clk_calc_div(parent_rate, rate);
+
+	ipu_di_write(di, clkgen0 | div, DI_BS_CLKGEN0);
+
+	dev_dbg(di->ipu->dev, "%s: inrate: %ld desired: %ld div: 0x%08x\n",
+			__func__, parent_rate, rate, div);
+	return 0;
+}
+
+static u8 clk_di_get_parent(struct clk_hw *hw)
+{
+	struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+	u32 val;
+
+	val = ipu_di_read(di, DI_GENERAL);
+
+	return val & DI_GEN_DI_CLK_EXT ? 1 : 0;
+}
+
+static int clk_di_set_parent(struct clk_hw *hw, u8 index)
+{
+	struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+	u32 val;
+
+	val = ipu_di_read(di, DI_GENERAL);
+
+	if (index)
+		val |= DI_GEN_DI_CLK_EXT;
+	else
+		val &= ~DI_GEN_DI_CLK_EXT;
+
+	ipu_di_write(di, val, DI_GENERAL);
+
+	return 0;
+}
+
+static struct clk_ops clk_di_ops = {
+	.round_rate = clk_di_round_rate,
+	.set_rate = clk_di_set_rate,
+	.recalc_rate = clk_di_recalc_rate,
+	.set_parent = clk_di_set_parent,
+	.get_parent = clk_di_get_parent,
+};
+
+static void ipu_di_data_wave_config(struct ipu_di *di,
+				     int wave_gen,
+				     int access_size, int component_size)
+{
+	u32 reg;
+	reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
+	    (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
+	ipu_di_write(di, reg, DI_DW_GEN(wave_gen));
+}
+
+static void ipu_di_data_pin_config(struct ipu_di *di, int wave_gen, int di_pin,
+		int set, int up, int down)
+{
+	u32 reg;
+
+	reg = ipu_di_read(di, DI_DW_GEN(wave_gen));
+	reg &= ~(0x3 << (di_pin * 2));
+	reg |= set << (di_pin * 2);
+	ipu_di_write(di, reg, DI_DW_GEN(wave_gen));
+
+	ipu_di_write(di, (down << 16) | up, DI_DW_SET(wave_gen, set));
+}
+
+static void ipu_di_sync_config(struct ipu_di *di, struct di_sync_config *config,
+		int start, int count)
+{
+	u32 reg;
+	int i;
+
+	for (i = 0; i < count; i++) {
+		struct di_sync_config *c = &config[i];
+		int wave_gen = start + i + 1;
+
+		if ((c->run_count >= 0x1000) || (c->offset_count >= 0x1000) ||
+				(c->repeat_count >= 0x1000) ||
+				(c->cnt_up >= 0x400) ||
+				(c->cnt_down >= 0x400)) {
+			dev_err(di->ipu->dev, "DI%d counters out of range.\n",
+					di->id);
+			return;
+		}
+
+		reg = DI_SW_GEN0_RUN_COUNT(c->run_count) |
+			DI_SW_GEN0_RUN_SRC(c->run_src) |
+			DI_SW_GEN0_OFFSET_COUNT(c->offset_count) |
+			DI_SW_GEN0_OFFSET_SRC(c->offset_src);
+		ipu_di_write(di, reg, DI_SW_GEN0(wave_gen));
+
+		reg = DI_SW_GEN1_CNT_POL_GEN_EN(c->cnt_polarity_gen_en) |
+			DI_SW_GEN1_CNT_CLR_SRC(c->cnt_clr_src) |
+			DI_SW_GEN1_CNT_POL_TRIGGER_SRC(
+					c->cnt_polarity_trigger_src) |
+			DI_SW_GEN1_CNT_POL_CLR_SRC(c->cnt_polarity_clr_src) |
+			DI_SW_GEN1_CNT_DOWN(c->cnt_down) |
+			DI_SW_GEN1_CNT_UP(c->cnt_up);
+
+		/* Enable auto reload */
+		if (c->repeat_count == 0)
+			reg |= DI_SW_GEN1_AUTO_RELOAD;
+
+		ipu_di_write(di, reg, DI_SW_GEN1(wave_gen));
+
+		reg = ipu_di_read(di, DI_STP_REP(wave_gen));
+		reg &= ~(0xffff << (16 * ((wave_gen - 1) & 0x1)));
+		reg |= c->repeat_count << (16 * ((wave_gen - 1) & 0x1));
+		ipu_di_write(di, reg, DI_STP_REP(wave_gen));
+	}
+}
+
+static void ipu_di_sync_config_interlaced(struct ipu_di *di,
+		struct ipu_di_signal_cfg *sig)
+{
+	u32 h_total = sig->width + sig->h_sync_width +
+		sig->h_start_width + sig->h_end_width;
+	u32 v_total = sig->height + sig->v_sync_width +
+		sig->v_start_width + sig->v_end_width;
+	u32 reg;
+	struct di_sync_config cfg[] = {
+		{
+			.run_count = h_total / 2 - 1,
+			.run_src = DI_SYNC_CLK,
+		}, {
+			.run_count = h_total - 11,
+			.run_src = DI_SYNC_CLK,
+			.cnt_down = 4,
+		}, {
+			.run_count = v_total * 2 - 1,
+			.run_src = DI_SYNC_INT_HSYNC,
+			.offset_count = 1,
+			.offset_src = DI_SYNC_INT_HSYNC,
+			.cnt_down = 4,
+		}, {
+			.run_count = v_total / 2 - 1,
+			.run_src = DI_SYNC_HSYNC,
+			.offset_count = sig->v_start_width,
+			.offset_src = DI_SYNC_HSYNC,
+			.repeat_count = 2,
+			.cnt_clr_src = DI_SYNC_VSYNC,
+		}, {
+			.run_src = DI_SYNC_HSYNC,
+			.repeat_count = sig->height / 2,
+			.cnt_clr_src = 4,
+		}, {
+			.run_count = v_total - 1,
+			.run_src = DI_SYNC_HSYNC,
+		}, {
+			.run_count = v_total / 2 - 1,
+			.run_src = DI_SYNC_HSYNC,
+			.offset_count = 9,
+			.offset_src = DI_SYNC_HSYNC,
+			.repeat_count = 2,
+			.cnt_clr_src = DI_SYNC_VSYNC,
+		}, {
+			.run_src = DI_SYNC_CLK,
+			.offset_count = sig->h_start_width,
+			.offset_src = DI_SYNC_CLK,
+			.repeat_count = sig->width,
+			.cnt_clr_src = 5,
+		}, {
+			.run_count = v_total - 1,
+			.run_src = DI_SYNC_INT_HSYNC,
+			.offset_count = v_total / 2,
+			.offset_src = DI_SYNC_INT_HSYNC,
+			.cnt_clr_src = DI_SYNC_HSYNC,
+			.cnt_down = 4,
+		}
+	};
+
+	ipu_di_sync_config(di, cfg, 0, ARRAY_SIZE(cfg));
+
+	/* set gentime select and tag sel */
+	reg = ipu_di_read(di, DI_SW_GEN1(9));
+	reg &= 0x1FFFFFFF;
+	reg |= (3 - 1) << 29 | 0x00008000;
+	ipu_di_write(di, reg, DI_SW_GEN1(9));
+
+	ipu_di_write(di, v_total / 2 - 1, DI_SCR_CONF);
+}
+
+static void ipu_di_sync_config_noninterlaced(struct ipu_di *di,
+		struct ipu_di_signal_cfg *sig, int div)
+{
+	u32 h_total = sig->width + sig->h_sync_width + sig->h_start_width +
+		sig->h_end_width;
+	u32 v_total = sig->height + sig->v_sync_width + sig->v_start_width +
+		sig->v_end_width;
+	struct di_sync_config cfg[] = {
+		{
+			.run_count = h_total - 1,
+			.run_src = DI_SYNC_CLK,
+		} , {
+			.run_count = h_total - 1,
+			.run_src = DI_SYNC_CLK,
+			.offset_count = div * sig->v_to_h_sync,
+			.offset_src = DI_SYNC_CLK,
+			.cnt_polarity_gen_en = 1,
+			.cnt_polarity_trigger_src = DI_SYNC_CLK,
+			.cnt_down = sig->h_sync_width * 2,
+		} , {
+			.run_count = v_total - 1,
+			.run_src = DI_SYNC_INT_HSYNC,
+			.cnt_polarity_gen_en = 1,
+			.cnt_polarity_trigger_src = DI_SYNC_INT_HSYNC,
+			.cnt_down = sig->v_sync_width * 2,
+		} , {
+			.run_src = DI_SYNC_HSYNC,
+			.offset_count = sig->v_sync_width + sig->v_start_width,
+			.offset_src = DI_SYNC_HSYNC,
+			.repeat_count = sig->height,
+			.cnt_clr_src = DI_SYNC_VSYNC,
+		} , {
+			.run_src = DI_SYNC_CLK,
+			.offset_count = sig->h_sync_width + sig->h_start_width,
+			.offset_src = DI_SYNC_CLK,
+			.repeat_count = sig->width,
+			.cnt_clr_src = 5,
+		} , {
+			/* unused */
+		} , {
+			/* unused */
+		} , {
+			/* unused */
+		} , {
+			/* unused */
+		},
+	};
+
+	ipu_di_write(di, v_total - 1, DI_SCR_CONF);
+	ipu_di_sync_config(di, cfg, 0, ARRAY_SIZE(cfg));
+}
+
+int ipu_di_init_sync_panel(struct ipu_di *di, struct ipu_di_signal_cfg *sig)
+{
+	u32 reg;
+	u32 di_gen, vsync_cnt;
+	u32 div;
+	u32 h_total, v_total;
+	int ret;
+	unsigned long round;
+	struct clk *parent;
+
+	dev_dbg(di->ipu->dev, "disp %d: panel size = %d x %d\n",
+		di->id, sig->width, sig->height);
+
+	if ((sig->v_sync_width == 0) || (sig->h_sync_width == 0))
+		return -EINVAL;
+
+	if (sig->clkflags & IPU_DI_CLKMODE_EXT)
+		parent = di->clk_di;
+	else
+		parent = di->clk_ipu;
+
+	ret = clk_set_parent(di->clk_di_pixel, parent);
+	if (ret) {
+		dev_err(di->ipu->dev,
+			"setting pixel clock to parent %s failed with %d\n",
+				__clk_get_name(parent), ret);
+		return ret;
+	}
+
+	if (sig->clkflags & IPU_DI_CLKMODE_SYNC)
+		round = clk_get_rate(parent);
+	else
+		round = clk_round_rate(di->clk_di_pixel, sig->pixelclock);
+
+	ret = clk_set_rate(di->clk_di_pixel, round);
+
+	h_total = sig->width + sig->h_sync_width + sig->h_start_width +
+		sig->h_end_width;
+	v_total = sig->height + sig->v_sync_width + sig->v_start_width +
+		sig->v_end_width;
+
+	mutex_lock(&di_mutex);
+
+	div = ipu_di_read(di, DI_BS_CLKGEN0) & 0xfff;
+	div = div / 16;		/* Now divider is integer portion */
+
+	/* Setup pixel clock timing */
+	/* Down time is half of period */
+	ipu_di_write(di, (div << 16), DI_BS_CLKGEN1);
+
+	ipu_di_data_wave_config(di, SYNC_WAVE, div - 1, div - 1);
+	ipu_di_data_pin_config(di, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
+
+	di_gen = ipu_di_read(di, DI_GENERAL) & DI_GEN_DI_CLK_EXT;
+	di_gen |= DI_GEN_DI_VSYNC_EXT;
+
+	if (sig->interlaced) {
+		ipu_di_sync_config_interlaced(di, sig);
+
+		/* set y_sel = 1 */
+		di_gen |= 0x10000000;
+		di_gen |= DI_GEN_POLARITY_5;
+		di_gen |= DI_GEN_POLARITY_8;
+
+		vsync_cnt = 7;
+
+		if (sig->Hsync_pol)
+			di_gen |= DI_GEN_POLARITY_3;
+		if (sig->Vsync_pol)
+			di_gen |= DI_GEN_POLARITY_2;
+	} else {
+		ipu_di_sync_config_noninterlaced(di, sig, div);
+
+		vsync_cnt = 3;
+
+		if (sig->Hsync_pol)
+			di_gen |= DI_GEN_POLARITY_2;
+		if (sig->Vsync_pol)
+			di_gen |= DI_GEN_POLARITY_3;
+	}
+
+	if (!sig->clk_pol)
+		di_gen |= DI_GEN_POLARITY_DISP_CLK;
+
+	ipu_di_write(di, di_gen, DI_GENERAL);
+
+	ipu_di_write(di, (--vsync_cnt << DI_VSYNC_SEL_OFFSET) | 0x00000002,
+		     DI_SYNC_AS_GEN);
+
+	reg = ipu_di_read(di, DI_POL);
+	reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
+
+	if (sig->enable_pol)
+		reg |= DI_POL_DRDY_POLARITY_15;
+	if (sig->data_pol)
+		reg |= DI_POL_DRDY_DATA_POLARITY;
+
+	ipu_di_write(di, reg, DI_POL);
+
+	mutex_unlock(&di_mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_di_init_sync_panel);
+
+int ipu_di_enable(struct ipu_di *di)
+{
+	clk_prepare_enable(di->clk_di_pixel);
+
+	ipu_module_enable(di->ipu, di->module);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_di_enable);
+
+int ipu_di_disable(struct ipu_di *di)
+{
+	ipu_module_disable(di->ipu, di->module);
+
+	clk_disable_unprepare(di->clk_di_pixel);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_di_disable);
+
+int ipu_di_get_num(struct ipu_di *di)
+{
+	return di->id;
+}
+EXPORT_SYMBOL_GPL(ipu_di_get_num);
+
+static DEFINE_MUTEX(ipu_di_lock);
+
+struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp)
+{
+	struct ipu_di *di;
+
+	if (disp > 1)
+		return ERR_PTR(-EINVAL);
+
+	di = ipu->di_priv[disp];
+
+	mutex_lock(&ipu_di_lock);
+
+	if (di->inuse) {
+		di = ERR_PTR(-EBUSY);
+		goto out;
+	}
+
+	di->inuse = true;
+out:
+	mutex_unlock(&ipu_di_lock);
+
+	return di;
+}
+EXPORT_SYMBOL_GPL(ipu_di_get);
+
+void ipu_di_put(struct ipu_di *di)
+{
+	mutex_lock(&ipu_di_lock);
+
+	di->inuse = false;
+
+	mutex_unlock(&ipu_di_lock);
+}
+EXPORT_SYMBOL_GPL(ipu_di_put);
+
+int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,
+		unsigned long base,
+		u32 module, struct clk *clk_ipu)
+{
+	struct ipu_di *di;
+	int ret;
+	const char *di_parent[2];
+	struct clk_init_data init = {
+		.ops = &clk_di_ops,
+		.num_parents = 2,
+		.flags = 0,
+	};
+
+	if (id > 1)
+		return -ENODEV;
+
+	di = devm_kzalloc(dev, sizeof(*di), GFP_KERNEL);
+	if (!di)
+		return -ENOMEM;
+
+	ipu->di_priv[id] = di;
+
+	di->clk_di = devm_clk_get(dev, id ? "di1" : "di0");
+	if (IS_ERR(di->clk_di))
+		return PTR_ERR(di->clk_di);
+
+	di->module = module;
+	di->id = id;
+	di->clk_ipu = clk_ipu;
+	di->base = devm_ioremap(dev, base, PAGE_SIZE);
+	if (!di->base)
+		return -ENOMEM;
+
+	di_parent[0] = __clk_get_name(di->clk_ipu);
+	di_parent[1] = __clk_get_name(di->clk_di);
+
+	ipu_di_write(di, 0x10, DI_BS_CLKGEN0);
+
+	init.parent_names = (const char **)&di_parent;
+	di->clk_name = kasprintf(GFP_KERNEL, "%s_di%d_pixel",
+			dev_name(dev), id);
+	if (!di->clk_name)
+		return -ENOMEM;
+
+	init.name = di->clk_name;
+
+	di->clk_hw_out.init = &init;
+	di->clk_di_pixel = clk_register(dev, &di->clk_hw_out);
+
+	if (IS_ERR(di->clk_di_pixel)) {
+		ret = PTR_ERR(di->clk_di_pixel);
+		goto failed_clk_register;
+	}
+
+	dev_info(dev, "DI%d base: 0x%08lx remapped to %p\n",
+			id, base, di->base);
+	di->inuse = false;
+	di->ipu = ipu;
+
+	return 0;
+
+failed_clk_register:
+
+	kfree(di->clk_name);
+
+	return ret;
+}
+
+void ipu_di_exit(struct ipu_soc *ipu, int id)
+{
+	struct ipu_di *di = ipu->di_priv[id];
+
+	clk_unregister(di->clk_di_pixel);
+	kfree(di->clk_name);
+}
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c
new file mode 100644
index 00000000000..91821bc30f4
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c
@@ -0,0 +1,408 @@
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+#define DMFC_RD_CHAN		0x0000
+#define DMFC_WR_CHAN		0x0004
+#define DMFC_WR_CHAN_DEF	0x0008
+#define DMFC_DP_CHAN		0x000c
+#define DMFC_DP_CHAN_DEF	0x0010
+#define DMFC_GENERAL1		0x0014
+#define DMFC_GENERAL2		0x0018
+#define DMFC_IC_CTRL		0x001c
+#define DMFC_STAT		0x0020
+
+#define DMFC_WR_CHAN_1_28		0
+#define DMFC_WR_CHAN_2_41		8
+#define DMFC_WR_CHAN_1C_42		16
+#define DMFC_WR_CHAN_2C_43		24
+
+#define DMFC_DP_CHAN_5B_23		0
+#define DMFC_DP_CHAN_5F_27		8
+#define DMFC_DP_CHAN_6B_24		16
+#define DMFC_DP_CHAN_6F_29		24
+
+#define DMFC_FIFO_SIZE_64		(3 << 3)
+#define DMFC_FIFO_SIZE_128		(2 << 3)
+#define DMFC_FIFO_SIZE_256		(1 << 3)
+#define DMFC_FIFO_SIZE_512		(0 << 3)
+
+#define DMFC_SEGMENT(x)			((x & 0x7) << 0)
+#define DMFC_BURSTSIZE_128		(0 << 6)
+#define DMFC_BURSTSIZE_64		(1 << 6)
+#define DMFC_BURSTSIZE_32		(2 << 6)
+#define DMFC_BURSTSIZE_16		(3 << 6)
+
+struct dmfc_channel_data {
+	int		ipu_channel;
+	unsigned long	channel_reg;
+	unsigned long	shift;
+	unsigned	eot_shift;
+	unsigned	max_fifo_lines;
+};
+
+static const struct dmfc_channel_data dmfcdata[] = {
+	{
+		.ipu_channel	= 23,
+		.channel_reg	= DMFC_DP_CHAN,
+		.shift		= DMFC_DP_CHAN_5B_23,
+		.eot_shift	= 20,
+		.max_fifo_lines	= 3,
+	}, {
+		.ipu_channel	= 24,
+		.channel_reg	= DMFC_DP_CHAN,
+		.shift		= DMFC_DP_CHAN_6B_24,
+		.eot_shift	= 22,
+		.max_fifo_lines	= 1,
+	}, {
+		.ipu_channel	= 27,
+		.channel_reg	= DMFC_DP_CHAN,
+		.shift		= DMFC_DP_CHAN_5F_27,
+		.eot_shift	= 21,
+		.max_fifo_lines	= 2,
+	}, {
+		.ipu_channel	= 28,
+		.channel_reg	= DMFC_WR_CHAN,
+		.shift		= DMFC_WR_CHAN_1_28,
+		.eot_shift	= 16,
+		.max_fifo_lines	= 2,
+	}, {
+		.ipu_channel	= 29,
+		.channel_reg	= DMFC_DP_CHAN,
+		.shift		= DMFC_DP_CHAN_6F_29,
+		.eot_shift	= 23,
+		.max_fifo_lines	= 1,
+	},
+};
+
+#define DMFC_NUM_CHANNELS	ARRAY_SIZE(dmfcdata)
+
+struct ipu_dmfc_priv;
+
+struct dmfc_channel {
+	unsigned			slots;
+	unsigned			slotmask;
+	unsigned			segment;
+	int				burstsize;
+	struct ipu_soc			*ipu;
+	struct ipu_dmfc_priv		*priv;
+	const struct dmfc_channel_data	*data;
+};
+
+struct ipu_dmfc_priv {
+	struct ipu_soc *ipu;
+	struct device *dev;
+	struct dmfc_channel channels[DMFC_NUM_CHANNELS];
+	struct mutex mutex;
+	unsigned long bandwidth_per_slot;
+	void __iomem *base;
+	int use_count;
+};
+
+int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc)
+{
+	struct ipu_dmfc_priv *priv = dmfc->priv;
+	mutex_lock(&priv->mutex);
+
+	if (!priv->use_count)
+		ipu_module_enable(priv->ipu, IPU_CONF_DMFC_EN);
+
+	priv->use_count++;
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_enable_channel);
+
+void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc)
+{
+	struct ipu_dmfc_priv *priv = dmfc->priv;
+
+	mutex_lock(&priv->mutex);
+
+	priv->use_count--;
+
+	if (!priv->use_count)
+		ipu_module_disable(priv->ipu, IPU_CONF_DMFC_EN);
+
+	if (priv->use_count < 0)
+		priv->use_count = 0;
+
+	mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_disable_channel);
+
+static int ipu_dmfc_setup_channel(struct dmfc_channel *dmfc, int slots,
+		int segment, int burstsize)
+{
+	struct ipu_dmfc_priv *priv = dmfc->priv;
+	u32 val, field;
+
+	dev_dbg(priv->dev,
+			"dmfc: using %d slots starting from segment %d for IPU channel %d\n",
+			slots, segment, dmfc->data->ipu_channel);
+
+	if (!dmfc)
+		return -EINVAL;
+
+	switch (slots) {
+	case 1:
+		field = DMFC_FIFO_SIZE_64;
+		break;
+	case 2:
+		field = DMFC_FIFO_SIZE_128;
+		break;
+	case 4:
+		field = DMFC_FIFO_SIZE_256;
+		break;
+	case 8:
+		field = DMFC_FIFO_SIZE_512;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (burstsize) {
+	case 16:
+		field |= DMFC_BURSTSIZE_16;
+		break;
+	case 32:
+		field |= DMFC_BURSTSIZE_32;
+		break;
+	case 64:
+		field |= DMFC_BURSTSIZE_64;
+		break;
+	case 128:
+		field |= DMFC_BURSTSIZE_128;
+		break;
+	}
+
+	field |= DMFC_SEGMENT(segment);
+
+	val = readl(priv->base + dmfc->data->channel_reg);
+
+	val &= ~(0xff << dmfc->data->shift);
+	val |= field << dmfc->data->shift;
+
+	writel(val, priv->base + dmfc->data->channel_reg);
+
+	dmfc->slots = slots;
+	dmfc->segment = segment;
+	dmfc->burstsize = burstsize;
+	dmfc->slotmask = ((1 << slots) - 1) << segment;
+
+	return 0;
+}
+
+static int dmfc_bandwidth_to_slots(struct ipu_dmfc_priv *priv,
+		unsigned long bandwidth)
+{
+	int slots = 1;
+
+	while (slots * priv->bandwidth_per_slot < bandwidth)
+		slots *= 2;
+
+	return slots;
+}
+
+static int dmfc_find_slots(struct ipu_dmfc_priv *priv, int slots)
+{
+	unsigned slotmask_need, slotmask_used = 0;
+	int i, segment = 0;
+
+	slotmask_need = (1 << slots) - 1;
+
+	for (i = 0; i < DMFC_NUM_CHANNELS; i++)
+		slotmask_used |= priv->channels[i].slotmask;
+
+	while (slotmask_need <= 0xff) {
+		if (!(slotmask_used & slotmask_need))
+			return segment;
+
+		slotmask_need <<= 1;
+		segment++;
+	}
+
+	return -EBUSY;
+}
+
+void ipu_dmfc_free_bandwidth(struct dmfc_channel *dmfc)
+{
+	struct ipu_dmfc_priv *priv = dmfc->priv;
+	int i;
+
+	dev_dbg(priv->dev, "dmfc: freeing %d slots starting from segment %d\n",
+			dmfc->slots, dmfc->segment);
+
+	mutex_lock(&priv->mutex);
+
+	if (!dmfc->slots)
+		goto out;
+
+	dmfc->slotmask = 0;
+	dmfc->slots = 0;
+	dmfc->segment = 0;
+
+	for (i = 0; i < DMFC_NUM_CHANNELS; i++)
+		priv->channels[i].slotmask = 0;
+
+	for (i = 0; i < DMFC_NUM_CHANNELS; i++) {
+		if (priv->channels[i].slots > 0) {
+			priv->channels[i].segment =
+				dmfc_find_slots(priv, priv->channels[i].slots);
+			priv->channels[i].slotmask =
+				((1 << priv->channels[i].slots) - 1) <<
+				priv->channels[i].segment;
+		}
+	}
+
+	for (i = 0; i < DMFC_NUM_CHANNELS; i++) {
+		if (priv->channels[i].slots > 0)
+			ipu_dmfc_setup_channel(&priv->channels[i],
+					priv->channels[i].slots,
+					priv->channels[i].segment,
+					priv->channels[i].burstsize);
+	}
+out:
+	mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_free_bandwidth);
+
+int ipu_dmfc_alloc_bandwidth(struct dmfc_channel *dmfc,
+		unsigned long bandwidth_pixel_per_second, int burstsize)
+{
+	struct ipu_dmfc_priv *priv = dmfc->priv;
+	int slots = dmfc_bandwidth_to_slots(priv, bandwidth_pixel_per_second);
+	int segment = 0, ret = 0;
+
+	dev_dbg(priv->dev, "dmfc: trying to allocate %ldMpixel/s for IPU channel %d\n",
+			bandwidth_pixel_per_second / 1000000,
+			dmfc->data->ipu_channel);
+
+	ipu_dmfc_free_bandwidth(dmfc);
+
+	mutex_lock(&priv->mutex);
+
+	if (slots > 8) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	segment = dmfc_find_slots(priv, slots);
+	if (segment < 0) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	ipu_dmfc_setup_channel(dmfc, slots, segment, burstsize);
+
+out:
+	mutex_unlock(&priv->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_alloc_bandwidth);
+
+int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
+{
+	struct ipu_dmfc_priv *priv = dmfc->priv;
+	u32 dmfc_gen1;
+
+	dmfc_gen1 = readl(priv->base + DMFC_GENERAL1);
+
+	if ((dmfc->slots * 64 * 4) / width > dmfc->data->max_fifo_lines)
+		dmfc_gen1 |= 1 << dmfc->data->eot_shift;
+	else
+		dmfc_gen1 &= ~(1 << dmfc->data->eot_shift);
+
+	writel(dmfc_gen1, priv->base + DMFC_GENERAL1);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_init_channel);
+
+struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipu_channel)
+{
+	struct ipu_dmfc_priv *priv = ipu->dmfc_priv;
+	int i;
+
+	for (i = 0; i < DMFC_NUM_CHANNELS; i++)
+		if (dmfcdata[i].ipu_channel == ipu_channel)
+			return &priv->channels[i];
+	return ERR_PTR(-ENODEV);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_get);
+
+void ipu_dmfc_put(struct dmfc_channel *dmfc)
+{
+	ipu_dmfc_free_bandwidth(dmfc);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_put);
+
+int ipu_dmfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
+		struct clk *ipu_clk)
+{
+	struct ipu_dmfc_priv *priv;
+	int i;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->base = devm_ioremap(dev, base, PAGE_SIZE);
+	if (!priv->base)
+		return -ENOMEM;
+
+	priv->dev = dev;
+	priv->ipu = ipu;
+	mutex_init(&priv->mutex);
+
+	ipu->dmfc_priv = priv;
+
+	for (i = 0; i < DMFC_NUM_CHANNELS; i++) {
+		priv->channels[i].priv = priv;
+		priv->channels[i].ipu = ipu;
+		priv->channels[i].data = &dmfcdata[i];
+	}
+
+	writel(0x0, priv->base + DMFC_WR_CHAN);
+	writel(0x0, priv->base + DMFC_DP_CHAN);
+
+	/*
+	 * We have a total bandwidth of clkrate * 4pixel divided
+	 * into 8 slots.
+	 */
+	priv->bandwidth_per_slot = clk_get_rate(ipu_clk) / 8;
+
+	dev_dbg(dev, "dmfc: 8 slots with %ldMpixel/s bandwidth each\n",
+			priv->bandwidth_per_slot / 1000000);
+
+	writel(0x202020f6, priv->base + DMFC_WR_CHAN_DEF);
+	writel(0x2020f6f6, priv->base + DMFC_DP_CHAN_DEF);
+	writel(0x00000003, priv->base + DMFC_GENERAL1);
+
+	return 0;
+}
+
+void ipu_dmfc_exit(struct ipu_soc *ipu)
+{
+}
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c
new file mode 100644
index 00000000000..26aecaf9677
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c
@@ -0,0 +1,336 @@
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/err.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+#define DP_SYNC 0
+#define DP_ASYNC0 0x60
+#define DP_ASYNC1 0xBC
+
+#define DP_COM_CONF		0x0
+#define DP_GRAPH_WIND_CTRL	0x0004
+#define DP_FG_POS		0x0008
+#define DP_CSC_A_0		0x0044
+#define DP_CSC_A_1		0x0048
+#define DP_CSC_A_2		0x004C
+#define DP_CSC_A_3		0x0050
+#define DP_CSC_0		0x0054
+#define DP_CSC_1		0x0058
+
+#define DP_COM_CONF_FG_EN		(1 << 0)
+#define DP_COM_CONF_GWSEL		(1 << 1)
+#define DP_COM_CONF_GWAM		(1 << 2)
+#define DP_COM_CONF_GWCKE		(1 << 3)
+#define DP_COM_CONF_CSC_DEF_MASK	(3 << 8)
+#define DP_COM_CONF_CSC_DEF_OFFSET	8
+#define DP_COM_CONF_CSC_DEF_FG		(3 << 8)
+#define DP_COM_CONF_CSC_DEF_BG		(2 << 8)
+#define DP_COM_CONF_CSC_DEF_BOTH	(1 << 8)
+
+struct ipu_dp_priv;
+
+struct ipu_dp {
+	u32 flow;
+	bool in_use;
+	bool foreground;
+	enum ipu_color_space in_cs;
+};
+
+struct ipu_flow {
+	struct ipu_dp foreground;
+	struct ipu_dp background;
+	enum ipu_color_space out_cs;
+	void __iomem *base;
+	struct ipu_dp_priv *priv;
+};
+
+struct ipu_dp_priv {
+	struct ipu_soc *ipu;
+	struct device *dev;
+	void __iomem *base;
+	struct ipu_flow flow[3];
+	struct mutex mutex;
+	int use_count;
+};
+
+static u32 ipu_dp_flow_base[] = {DP_SYNC, DP_ASYNC0, DP_ASYNC1};
+
+static inline struct ipu_flow *to_flow(struct ipu_dp *dp)
+{
+	if (dp->foreground)
+		return container_of(dp, struct ipu_flow, foreground);
+	else
+		return container_of(dp, struct ipu_flow, background);
+}
+
+int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable,
+		u8 alpha, bool bg_chan)
+{
+	struct ipu_flow *flow = to_flow(dp);
+	struct ipu_dp_priv *priv = flow->priv;
+	u32 reg;
+
+	mutex_lock(&priv->mutex);
+
+	reg = readl(flow->base + DP_COM_CONF);
+	if (bg_chan)
+		reg &= ~DP_COM_CONF_GWSEL;
+	else
+		reg |= DP_COM_CONF_GWSEL;
+	writel(reg, flow->base + DP_COM_CONF);
+
+	if (enable) {
+		reg = readl(flow->base + DP_GRAPH_WIND_CTRL) & 0x00FFFFFFL;
+		writel(reg | ((u32) alpha << 24),
+			     flow->base + DP_GRAPH_WIND_CTRL);
+
+		reg = readl(flow->base + DP_COM_CONF);
+		writel(reg | DP_COM_CONF_GWAM, flow->base + DP_COM_CONF);
+	} else {
+		reg = readl(flow->base + DP_COM_CONF);
+		writel(reg & ~DP_COM_CONF_GWAM, flow->base + DP_COM_CONF);
+	}
+
+	ipu_srm_dp_sync_update(priv->ipu);
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_set_global_alpha);
+
+int ipu_dp_set_window_pos(struct ipu_dp *dp, u16 x_pos, u16 y_pos)
+{
+	struct ipu_flow *flow = to_flow(dp);
+	struct ipu_dp_priv *priv = flow->priv;
+
+	writel((x_pos << 16) | y_pos, flow->base + DP_FG_POS);
+
+	ipu_srm_dp_sync_update(priv->ipu);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_set_window_pos);
+
+static void ipu_dp_csc_init(struct ipu_flow *flow,
+		enum ipu_color_space in,
+		enum ipu_color_space out,
+		u32 place)
+{
+	u32 reg;
+
+	reg = readl(flow->base + DP_COM_CONF);
+	reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+
+	if (in == out) {
+		writel(reg, flow->base + DP_COM_CONF);
+		return;
+	}
+
+	if (in == IPUV3_COLORSPACE_RGB && out == IPUV3_COLORSPACE_YUV) {
+		writel(0x099 | (0x12d << 16), flow->base + DP_CSC_A_0);
+		writel(0x03a | (0x3a9 << 16), flow->base + DP_CSC_A_1);
+		writel(0x356 | (0x100 << 16), flow->base + DP_CSC_A_2);
+		writel(0x100 | (0x329 << 16), flow->base + DP_CSC_A_3);
+		writel(0x3d6 | (0x0000 << 16) | (2 << 30),
+				flow->base + DP_CSC_0);
+		writel(0x200 | (2 << 14) | (0x200 << 16) | (2 << 30),
+				flow->base + DP_CSC_1);
+	} else {
+		writel(0x095 | (0x000 << 16), flow->base + DP_CSC_A_0);
+		writel(0x0cc | (0x095 << 16), flow->base + DP_CSC_A_1);
+		writel(0x3ce | (0x398 << 16), flow->base + DP_CSC_A_2);
+		writel(0x095 | (0x0ff << 16), flow->base + DP_CSC_A_3);
+		writel(0x000 | (0x3e42 << 16) | (1 << 30),
+				flow->base + DP_CSC_0);
+		writel(0x10a | (1 << 14) | (0x3dd6 << 16) | (1 << 30),
+				flow->base + DP_CSC_1);
+	}
+
+	reg |= place;
+
+	writel(reg, flow->base + DP_COM_CONF);
+}
+
+int ipu_dp_setup_channel(struct ipu_dp *dp,
+		enum ipu_color_space in,
+		enum ipu_color_space out)
+{
+	struct ipu_flow *flow = to_flow(dp);
+	struct ipu_dp_priv *priv = flow->priv;
+
+	mutex_lock(&priv->mutex);
+
+	dp->in_cs = in;
+
+	if (!dp->foreground)
+		flow->out_cs = out;
+
+	if (flow->foreground.in_cs == flow->background.in_cs) {
+		/*
+		 * foreground and background are of same colorspace, put
+		 * colorspace converter after combining unit.
+		 */
+		ipu_dp_csc_init(flow, flow->foreground.in_cs, flow->out_cs,
+				DP_COM_CONF_CSC_DEF_BOTH);
+	} else {
+		if (flow->foreground.in_cs == flow->out_cs)
+			/*
+			 * foreground identical to output, apply color
+			 * conversion on background
+			 */
+			ipu_dp_csc_init(flow, flow->background.in_cs,
+					flow->out_cs, DP_COM_CONF_CSC_DEF_BG);
+		else
+			ipu_dp_csc_init(flow, flow->foreground.in_cs,
+					flow->out_cs, DP_COM_CONF_CSC_DEF_FG);
+	}
+
+	ipu_srm_dp_sync_update(priv->ipu);
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_setup_channel);
+
+int ipu_dp_enable_channel(struct ipu_dp *dp)
+{
+	struct ipu_flow *flow = to_flow(dp);
+	struct ipu_dp_priv *priv = flow->priv;
+
+	mutex_lock(&priv->mutex);
+
+	if (!priv->use_count)
+		ipu_module_enable(priv->ipu, IPU_CONF_DP_EN);
+
+	priv->use_count++;
+
+	if (dp->foreground) {
+		u32 reg;
+
+		reg = readl(flow->base + DP_COM_CONF);
+		reg |= DP_COM_CONF_FG_EN;
+		writel(reg, flow->base + DP_COM_CONF);
+
+		ipu_srm_dp_sync_update(priv->ipu);
+	}
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_enable_channel);
+
+void ipu_dp_disable_channel(struct ipu_dp *dp)
+{
+	struct ipu_flow *flow = to_flow(dp);
+	struct ipu_dp_priv *priv = flow->priv;
+
+	mutex_lock(&priv->mutex);
+
+	priv->use_count--;
+
+	if (dp->foreground) {
+		u32 reg, csc;
+
+		reg = readl(flow->base + DP_COM_CONF);
+		csc = reg & DP_COM_CONF_CSC_DEF_MASK;
+		if (csc == DP_COM_CONF_CSC_DEF_FG)
+			reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+
+		reg &= ~DP_COM_CONF_FG_EN;
+		writel(reg, flow->base + DP_COM_CONF);
+
+		writel(0, flow->base + DP_FG_POS);
+		ipu_srm_dp_sync_update(priv->ipu);
+	}
+
+	if (!priv->use_count)
+		ipu_module_disable(priv->ipu, IPU_CONF_DP_EN);
+
+	if (priv->use_count < 0)
+		priv->use_count = 0;
+
+	mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dp_disable_channel);
+
+struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow)
+{
+	struct ipu_dp_priv *priv = ipu->dp_priv;
+	struct ipu_dp *dp;
+
+	if (flow > 5)
+		return ERR_PTR(-EINVAL);
+
+	if (flow & 1)
+		dp = &priv->flow[flow >> 1].foreground;
+	else
+		dp = &priv->flow[flow >> 1].background;
+
+	if (dp->in_use)
+		return ERR_PTR(-EBUSY);
+
+	dp->in_use = true;
+
+	return dp;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_get);
+
+void ipu_dp_put(struct ipu_dp *dp)
+{
+	dp->in_use = false;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_put);
+
+int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base)
+{
+	struct ipu_dp_priv *priv;
+	int i;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	priv->dev = dev;
+	priv->ipu = ipu;
+
+	ipu->dp_priv = priv;
+
+	priv->base = devm_ioremap(dev, base, PAGE_SIZE);
+	if (!priv->base) {
+		kfree(priv);
+		return -ENOMEM;
+	}
+
+	mutex_init(&priv->mutex);
+
+	for (i = 0; i < 3; i++) {
+		priv->flow[i].foreground.foreground = 1;
+		priv->flow[i].base = priv->base + ipu_dp_flow_base[i];
+		priv->flow[i].priv = priv;
+	}
+
+	return 0;
+}
+
+void ipu_dp_exit(struct ipu_soc *ipu)
+{
+}
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-prv.h b/drivers/staging/imx-drm/ipu-v3/ipu-prv.h
new file mode 100644
index 00000000000..551802863fd
--- /dev/null
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-prv.h
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+#ifndef __IPU_PRV_H__
+#define __IPU_PRV_H__
+
+struct ipu_soc;
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include "imx-ipu-v3.h"
+
+#define IPUV3_CHANNEL_CSI0			 0
+#define IPUV3_CHANNEL_CSI1			 1
+#define IPUV3_CHANNEL_CSI2			 2
+#define IPUV3_CHANNEL_CSI3			 3
+#define IPUV3_CHANNEL_MEM_BG_SYNC		23
+#define IPUV3_CHANNEL_MEM_FG_SYNC		27
+#define IPUV3_CHANNEL_MEM_DC_SYNC		28
+#define IPUV3_CHANNEL_MEM_FG_SYNC_ALPHA		31
+#define IPUV3_CHANNEL_MEM_DC_ASYNC		41
+#define IPUV3_CHANNEL_ROT_ENC_MEM		45
+#define IPUV3_CHANNEL_ROT_VF_MEM		46
+#define IPUV3_CHANNEL_ROT_PP_MEM		47
+#define IPUV3_CHANNEL_ROT_ENC_MEM_OUT		48
+#define IPUV3_CHANNEL_ROT_VF_MEM_OUT		49
+#define IPUV3_CHANNEL_ROT_PP_MEM_OUT		50
+#define IPUV3_CHANNEL_MEM_BG_SYNC_ALPHA		51
+
+#define IPU_MCU_T_DEFAULT	8
+#define IPU_CM_IDMAC_REG_OFS	0x00008000
+#define IPU_CM_IC_REG_OFS	0x00020000
+#define IPU_CM_IRT_REG_OFS	0x00028000
+#define IPU_CM_CSI0_REG_OFS	0x00030000
+#define IPU_CM_CSI1_REG_OFS	0x00038000
+#define IPU_CM_SMFC_REG_OFS	0x00050000
+#define IPU_CM_DC_REG_OFS	0x00058000
+#define IPU_CM_DMFC_REG_OFS	0x00060000
+
+/* Register addresses */
+/* IPU Common registers */
+#define IPU_CM_REG(offset)	(offset)
+
+#define IPU_CONF			IPU_CM_REG(0)
+
+#define IPU_SRM_PRI1			IPU_CM_REG(0x00a0)
+#define IPU_SRM_PRI2			IPU_CM_REG(0x00a4)
+#define IPU_FS_PROC_FLOW1		IPU_CM_REG(0x00a8)
+#define IPU_FS_PROC_FLOW2		IPU_CM_REG(0x00ac)
+#define IPU_FS_PROC_FLOW3		IPU_CM_REG(0x00b0)
+#define IPU_FS_DISP_FLOW1		IPU_CM_REG(0x00b4)
+#define IPU_FS_DISP_FLOW2		IPU_CM_REG(0x00b8)
+#define IPU_SKIP			IPU_CM_REG(0x00bc)
+#define IPU_DISP_ALT_CONF		IPU_CM_REG(0x00c0)
+#define IPU_DISP_GEN			IPU_CM_REG(0x00c4)
+#define IPU_DISP_ALT1			IPU_CM_REG(0x00c8)
+#define IPU_DISP_ALT2			IPU_CM_REG(0x00cc)
+#define IPU_DISP_ALT3			IPU_CM_REG(0x00d0)
+#define IPU_DISP_ALT4			IPU_CM_REG(0x00d4)
+#define IPU_SNOOP			IPU_CM_REG(0x00d8)
+#define IPU_MEM_RST			IPU_CM_REG(0x00dc)
+#define IPU_PM				IPU_CM_REG(0x00e0)
+#define IPU_GPR				IPU_CM_REG(0x00e4)
+#define IPU_CHA_DB_MODE_SEL(ch)		IPU_CM_REG(0x0150 + 4 * ((ch) / 32))
+#define IPU_ALT_CHA_DB_MODE_SEL(ch)	IPU_CM_REG(0x0168 + 4 * ((ch) / 32))
+#define IPU_CHA_CUR_BUF(ch)		IPU_CM_REG(0x023C + 4 * ((ch) / 32))
+#define IPU_ALT_CUR_BUF0		IPU_CM_REG(0x0244)
+#define IPU_ALT_CUR_BUF1		IPU_CM_REG(0x0248)
+#define IPU_SRM_STAT			IPU_CM_REG(0x024C)
+#define IPU_PROC_TASK_STAT		IPU_CM_REG(0x0250)
+#define IPU_DISP_TASK_STAT		IPU_CM_REG(0x0254)
+#define IPU_CHA_BUF0_RDY(ch)		IPU_CM_REG(0x0268 + 4 * ((ch) / 32))
+#define IPU_CHA_BUF1_RDY(ch)		IPU_CM_REG(0x0270 + 4 * ((ch) / 32))
+#define IPU_ALT_CHA_BUF0_RDY(ch)	IPU_CM_REG(0x0278 + 4 * ((ch) / 32))
+#define IPU_ALT_CHA_BUF1_RDY(ch)	IPU_CM_REG(0x0280 + 4 * ((ch) / 32))
+
+#define IPU_INT_CTRL(n)		IPU_CM_REG(0x003C + 4 * (n))
+#define IPU_INT_STAT(n)		IPU_CM_REG(0x0200 + 4 * (n))
+
+#define IPU_DI0_COUNTER_RELEASE			(1 << 24)
+#define IPU_DI1_COUNTER_RELEASE			(1 << 25)
+
+#define IPU_IDMAC_REG(offset)	(offset)
+
+#define IDMAC_CONF			IPU_IDMAC_REG(0x0000)
+#define IDMAC_CHA_EN(ch)		IPU_IDMAC_REG(0x0004 + 4 * ((ch) / 32))
+#define IDMAC_SEP_ALPHA			IPU_IDMAC_REG(0x000c)
+#define IDMAC_ALT_SEP_ALPHA		IPU_IDMAC_REG(0x0010)
+#define IDMAC_CHA_PRI(ch)		IPU_IDMAC_REG(0x0014 + 4 * ((ch) / 32))
+#define IDMAC_WM_EN(ch)			IPU_IDMAC_REG(0x001c + 4 * ((ch) / 32))
+#define IDMAC_CH_LOCK_EN_1		IPU_IDMAC_REG(0x0024)
+#define IDMAC_CH_LOCK_EN_2		IPU_IDMAC_REG(0x0028)
+#define IDMAC_SUB_ADDR_0		IPU_IDMAC_REG(0x002c)
+#define IDMAC_SUB_ADDR_1		IPU_IDMAC_REG(0x0030)
+#define IDMAC_SUB_ADDR_2		IPU_IDMAC_REG(0x0034)
+#define IDMAC_BAND_EN(ch)		IPU_IDMAC_REG(0x0040 + 4 * ((ch) / 32))
+#define IDMAC_CHA_BUSY(ch)		IPU_IDMAC_REG(0x0100 + 4 * ((ch) / 32))
+
+#define IPU_NUM_IRQS	(32 * 5)
+
+enum ipu_modules {
+	IPU_CONF_CSI0_EN		= (1 << 0),
+	IPU_CONF_CSI1_EN		= (1 << 1),
+	IPU_CONF_IC_EN			= (1 << 2),
+	IPU_CONF_ROT_EN			= (1 << 3),
+	IPU_CONF_ISP_EN			= (1 << 4),
+	IPU_CONF_DP_EN			= (1 << 5),
+	IPU_CONF_DI0_EN			= (1 << 6),
+	IPU_CONF_DI1_EN			= (1 << 7),
+	IPU_CONF_SMFC_EN		= (1 << 8),
+	IPU_CONF_DC_EN			= (1 << 9),
+	IPU_CONF_DMFC_EN		= (1 << 10),
+
+	IPU_CONF_VDI_EN			= (1 << 12),
+
+	IPU_CONF_IDMAC_DIS		= (1 << 22),
+
+	IPU_CONF_IC_DMFC_SEL		= (1 << 25),
+	IPU_CONF_IC_DMFC_SYNC		= (1 << 26),
+	IPU_CONF_VDI_DMFC_SYNC		= (1 << 27),
+
+	IPU_CONF_CSI0_DATA_SOURCE	= (1 << 28),
+	IPU_CONF_CSI1_DATA_SOURCE	= (1 << 29),
+	IPU_CONF_IC_INPUT		= (1 << 30),
+	IPU_CONF_CSI_SEL		= (1 << 31),
+};
+
+struct ipuv3_channel {
+	unsigned int num;
+
+	bool enabled;
+	bool busy;
+
+	struct ipu_soc *ipu;
+};
+
+struct ipu_dc_priv;
+struct ipu_dmfc_priv;
+struct ipu_di;
+struct ipu_devtype;
+
+struct ipu_soc {
+	struct device		*dev;
+	const struct ipu_devtype	*devtype;
+	enum ipuv3_type		ipu_type;
+	spinlock_t		lock;
+	struct mutex		channel_lock;
+
+	void __iomem		*cm_reg;
+	void __iomem		*idmac_reg;
+	struct ipu_ch_param __iomem	*cpmem_base;
+
+	int			usecount;
+
+	struct clk		*clk;
+
+	struct ipuv3_channel	channel[64];
+
+	int			irq_start;
+	int			irq_sync;
+	int			irq_err;
+
+	struct ipu_dc_priv	*dc_priv;
+	struct ipu_dp_priv	*dp_priv;
+	struct ipu_dmfc_priv	*dmfc_priv;
+	struct ipu_di		*di_priv[2];
+};
+
+void ipu_srm_dp_sync_update(struct ipu_soc *ipu);
+
+int ipu_module_enable(struct ipu_soc *ipu, u32 mask);
+int ipu_module_disable(struct ipu_soc *ipu, u32 mask);
+
+int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,
+		unsigned long base, u32 module, struct clk *ipu_clk);
+void ipu_di_exit(struct ipu_soc *ipu, int id);
+
+int ipu_dmfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
+		struct clk *ipu_clk);
+void ipu_dmfc_exit(struct ipu_soc *ipu);
+
+int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
+void ipu_dp_exit(struct ipu_soc *ipu);
+
+int ipu_dc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
+		unsigned long template_base);
+void ipu_dc_exit(struct ipu_soc *ipu);
+
+int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
+void ipu_cpmem_exit(struct ipu_soc *ipu);
+
+#endif				/* __IPU_PRV_H__ */
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
new file mode 100644
index 00000000000..78d3edac75c
--- /dev/null
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -0,0 +1,579 @@
+/*
+ * i.MX IPUv3 Graphics driver
+ *
+ * Copyright (C) 2011 Sascha Hauer, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <linux/fb.h>
+#include <linux/clk.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+
+#include "ipu-v3/imx-ipu-v3.h"
+#include "imx-drm.h"
+
+#define DRIVER_DESC		"i.MX IPUv3 Graphics"
+
+struct ipu_framebuffer {
+	struct drm_framebuffer	base;
+	void			*virt;
+	dma_addr_t		phys;
+	size_t			len;
+};
+
+struct ipu_crtc {
+	struct drm_fb_helper	fb_helper;
+	struct ipu_framebuffer	ifb;
+	int			num_crtcs;
+	struct device		*dev;
+	struct drm_crtc		base;
+	struct imx_drm_crtc	*imx_crtc;
+	struct ipuv3_channel	*ipu_ch;
+	struct ipu_dc		*dc;
+	struct ipu_dp		*dp;
+	struct dmfc_channel	*dmfc;
+	struct ipu_di		*di;
+	int			enabled;
+	struct ipu_priv		*ipu_priv;
+	struct drm_pending_vblank_event *page_flip_event;
+	struct drm_framebuffer	*newfb;
+	int			irq;
+	u32			interface_pix_fmt;
+	unsigned long		di_clkflags;
+};
+
+#define to_ipu_crtc(x) container_of(x, struct ipu_crtc, base)
+
+static int calc_vref(struct drm_display_mode *mode)
+{
+	unsigned long htotal, vtotal;
+
+	htotal = mode->htotal;
+	vtotal = mode->vtotal;
+
+	if (!htotal || !vtotal)
+		return 60;
+
+	return mode->clock * 1000 / vtotal / htotal;
+}
+
+static int calc_bandwidth(struct drm_display_mode *mode, unsigned int vref)
+{
+	return mode->hdisplay * mode->vdisplay * vref;
+}
+
+static void ipu_fb_enable(struct ipu_crtc *ipu_crtc)
+{
+	if (ipu_crtc->enabled)
+		return;
+
+	ipu_di_enable(ipu_crtc->di);
+	ipu_dmfc_enable_channel(ipu_crtc->dmfc);
+	ipu_idmac_enable_channel(ipu_crtc->ipu_ch);
+	ipu_dc_enable_channel(ipu_crtc->dc);
+	if (ipu_crtc->dp)
+		ipu_dp_enable_channel(ipu_crtc->dp);
+
+	ipu_crtc->enabled = 1;
+}
+
+static void ipu_fb_disable(struct ipu_crtc *ipu_crtc)
+{
+	if (!ipu_crtc->enabled)
+		return;
+
+	if (ipu_crtc->dp)
+		ipu_dp_disable_channel(ipu_crtc->dp);
+	ipu_dc_disable_channel(ipu_crtc->dc);
+	ipu_idmac_disable_channel(ipu_crtc->ipu_ch);
+	ipu_dmfc_disable_channel(ipu_crtc->dmfc);
+	ipu_di_disable(ipu_crtc->di);
+
+	ipu_crtc->enabled = 0;
+}
+
+static void ipu_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+
+	dev_info(ipu_crtc->dev, "%s mode: %d\n", __func__, mode);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		ipu_fb_enable(ipu_crtc);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		ipu_fb_disable(ipu_crtc);
+		break;
+	}
+}
+
+static int ipu_page_flip(struct drm_crtc *crtc,
+		struct drm_framebuffer *fb,
+		struct drm_pending_vblank_event *event)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+	int ret;
+
+	if (ipu_crtc->newfb)
+		return -EBUSY;
+
+	ret = imx_drm_crtc_vblank_get(ipu_crtc->imx_crtc);
+	if (ret) {
+		dev_dbg(ipu_crtc->dev, "failed to acquire vblank counter\n");
+		list_del(&event->base.link);
+
+		return ret;
+	}
+
+	ipu_crtc->newfb = fb;
+	ipu_crtc->page_flip_event = event;
+
+	return 0;
+}
+
+static const struct drm_crtc_funcs ipu_crtc_funcs = {
+	.set_config = drm_crtc_helper_set_config,
+	.destroy = drm_crtc_cleanup,
+	.page_flip = ipu_page_flip,
+};
+
+static int ipu_drm_set_base(struct drm_crtc *crtc, int x, int y)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+	struct drm_gem_cma_object *cma_obj;
+	struct drm_framebuffer *fb = crtc->fb;
+	unsigned long phys;
+
+	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
+	if (!cma_obj) {
+		DRM_LOG_KMS("entry is null.\n");
+		return -EFAULT;
+	}
+
+	phys = cma_obj->paddr;
+	phys += x * (fb->bits_per_pixel >> 3);
+	phys += y * fb->pitches[0];
+
+	dev_dbg(ipu_crtc->dev, "%s: phys: 0x%lx\n", __func__, phys);
+	dev_dbg(ipu_crtc->dev, "%s: xy: %dx%d\n", __func__, x, y);
+
+	ipu_cpmem_set_stride(ipu_get_cpmem(ipu_crtc->ipu_ch), fb->pitches[0]);
+	ipu_cpmem_set_buffer(ipu_get_cpmem(ipu_crtc->ipu_ch),
+			  0, phys);
+
+	return 0;
+}
+
+static int ipu_crtc_mode_set(struct drm_crtc *crtc,
+			       struct drm_display_mode *orig_mode,
+			       struct drm_display_mode *mode,
+			       int x, int y,
+			       struct drm_framebuffer *old_fb)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+	struct drm_framebuffer *fb = ipu_crtc->base.fb;
+	int ret;
+	struct ipu_di_signal_cfg sig_cfg = {};
+	u32 out_pixel_fmt;
+	struct ipu_ch_param __iomem *cpmem = ipu_get_cpmem(ipu_crtc->ipu_ch);
+	int bpp;
+	u32 v4l2_fmt;
+
+	dev_dbg(ipu_crtc->dev, "%s: mode->hdisplay: %d\n", __func__,
+			mode->hdisplay);
+	dev_dbg(ipu_crtc->dev, "%s: mode->vdisplay: %d\n", __func__,
+			mode->vdisplay);
+
+	ipu_ch_param_zero(cpmem);
+
+	switch (fb->pixel_format) {
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		v4l2_fmt = V4L2_PIX_FMT_RGB32;
+		bpp = 32;
+		break;
+	case DRM_FORMAT_RGB565:
+		v4l2_fmt = V4L2_PIX_FMT_RGB565;
+		bpp = 16;
+		break;
+	case DRM_FORMAT_RGB888:
+		v4l2_fmt = V4L2_PIX_FMT_RGB24;
+		bpp = 24;
+		break;
+	default:
+		dev_err(ipu_crtc->dev, "unsupported pixel format 0x%08x\n",
+				fb->pixel_format);
+		return -EINVAL;
+	}
+
+	out_pixel_fmt = ipu_crtc->interface_pix_fmt;
+
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		sig_cfg.interlaced = 1;
+	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
+		sig_cfg.Hsync_pol = 1;
+	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
+		sig_cfg.Vsync_pol = 1;
+
+	sig_cfg.enable_pol = 1;
+	sig_cfg.clk_pol = 0;
+	sig_cfg.width = mode->hdisplay;
+	sig_cfg.height = mode->vdisplay;
+	sig_cfg.pixel_fmt = out_pixel_fmt;
+	sig_cfg.h_start_width = mode->htotal - mode->hsync_end;
+	sig_cfg.h_sync_width = mode->hsync_end - mode->hsync_start;
+	sig_cfg.h_end_width = mode->hsync_start - mode->hdisplay;
+
+	sig_cfg.v_start_width = mode->vtotal - mode->vsync_end;
+	sig_cfg.v_sync_width = mode->vsync_end - mode->vsync_start;
+	sig_cfg.v_end_width = mode->vsync_start - mode->vdisplay;
+	sig_cfg.pixelclock = mode->clock * 1000;
+	sig_cfg.clkflags = ipu_crtc->di_clkflags;
+
+	sig_cfg.v_to_h_sync = 0;
+
+	if (ipu_crtc->dp) {
+		ret = ipu_dp_setup_channel(ipu_crtc->dp, IPUV3_COLORSPACE_RGB,
+				IPUV3_COLORSPACE_RGB);
+		if (ret) {
+			dev_err(ipu_crtc->dev,
+				"initializing display processor failed with %d\n",
+				ret);
+			return ret;
+		}
+		ipu_dp_set_global_alpha(ipu_crtc->dp, 1, 0, 1);
+	}
+
+	ret = ipu_dc_init_sync(ipu_crtc->dc, ipu_crtc->di, sig_cfg.interlaced,
+			out_pixel_fmt, mode->hdisplay);
+	if (ret) {
+		dev_err(ipu_crtc->dev,
+				"initializing display controller failed with %d\n",
+				ret);
+		return ret;
+	}
+
+	ret = ipu_di_init_sync_panel(ipu_crtc->di, &sig_cfg);
+	if (ret) {
+		dev_err(ipu_crtc->dev,
+				"initializing panel failed with %d\n", ret);
+		return ret;
+	}
+
+	ipu_cpmem_set_resolution(cpmem, mode->hdisplay, mode->vdisplay);
+	ipu_cpmem_set_fmt(cpmem, v4l2_fmt);
+	ipu_cpmem_set_high_priority(ipu_crtc->ipu_ch);
+
+	ret = ipu_dmfc_init_channel(ipu_crtc->dmfc, mode->hdisplay);
+	if (ret) {
+		dev_err(ipu_crtc->dev,
+				"initializing dmfc channel failed with %d\n",
+				ret);
+		return ret;
+	}
+
+	ret = ipu_dmfc_alloc_bandwidth(ipu_crtc->dmfc,
+			calc_bandwidth(mode, calc_vref(mode)), 64);
+	if (ret) {
+		dev_err(ipu_crtc->dev,
+				"allocating dmfc bandwidth failed with %d\n",
+				ret);
+		return ret;
+	}
+
+	ipu_drm_set_base(crtc, x, y);
+
+	return 0;
+}
+
+static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
+{
+	struct drm_pending_vblank_event *e;
+	struct timeval now;
+	unsigned long flags;
+	struct drm_device *drm = ipu_crtc->base.dev;
+
+	spin_lock_irqsave(&drm->event_lock, flags);
+
+	e = ipu_crtc->page_flip_event;
+	if (!e) {
+		spin_unlock_irqrestore(&drm->event_lock, flags);
+		return;
+	}
+
+	do_gettimeofday(&now);
+	e->event.sequence = 0;
+	e->event.tv_sec = now.tv_sec;
+	e->event.tv_usec = now.tv_usec;
+	ipu_crtc->page_flip_event = NULL;
+
+	imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc);
+
+	list_add_tail(&e->base.link, &e->base.file_priv->event_list);
+
+	wake_up_interruptible(&e->base.file_priv->event_wait);
+
+	spin_unlock_irqrestore(&drm->event_lock, flags);
+}
+
+static irqreturn_t ipu_irq_handler(int irq, void *dev_id)
+{
+	struct ipu_crtc *ipu_crtc = dev_id;
+
+	imx_drm_handle_vblank(ipu_crtc->imx_crtc);
+
+	if (ipu_crtc->newfb) {
+		ipu_crtc->base.fb = ipu_crtc->newfb;
+		ipu_crtc->newfb = NULL;
+		ipu_drm_set_base(&ipu_crtc->base, 0, 0);
+		ipu_crtc_handle_pageflip(ipu_crtc);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static bool ipu_crtc_mode_fixup(struct drm_crtc *crtc,
+				  const struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void ipu_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+
+	ipu_fb_disable(ipu_crtc);
+}
+
+static void ipu_crtc_commit(struct drm_crtc *crtc)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+
+	ipu_fb_enable(ipu_crtc);
+}
+
+static void ipu_crtc_load_lut(struct drm_crtc *crtc)
+{
+}
+
+static struct drm_crtc_helper_funcs ipu_helper_funcs = {
+	.dpms = ipu_crtc_dpms,
+	.mode_fixup = ipu_crtc_mode_fixup,
+	.mode_set = ipu_crtc_mode_set,
+	.prepare = ipu_crtc_prepare,
+	.commit = ipu_crtc_commit,
+	.load_lut = ipu_crtc_load_lut,
+};
+
+static int ipu_enable_vblank(struct drm_crtc *crtc)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+
+	enable_irq(ipu_crtc->irq);
+
+	return 0;
+}
+
+static void ipu_disable_vblank(struct drm_crtc *crtc)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+
+	disable_irq(ipu_crtc->irq);
+}
+
+static int ipu_set_interface_pix_fmt(struct drm_crtc *crtc, u32 encoder_type,
+		u32 pixfmt)
+{
+	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+
+	ipu_crtc->interface_pix_fmt = pixfmt;
+
+	switch (encoder_type) {
+	case DRM_MODE_ENCODER_LVDS:
+		ipu_crtc->di_clkflags = IPU_DI_CLKMODE_SYNC |
+			IPU_DI_CLKMODE_EXT;
+		break;
+	case DRM_MODE_ENCODER_NONE:
+		ipu_crtc->di_clkflags = 0;
+		break;
+	}
+
+	return 0;
+}
+
+static const struct imx_drm_crtc_helper_funcs ipu_crtc_helper_funcs = {
+	.enable_vblank = ipu_enable_vblank,
+	.disable_vblank = ipu_disable_vblank,
+	.set_interface_pix_fmt = ipu_set_interface_pix_fmt,
+	.crtc_funcs = &ipu_crtc_funcs,
+	.crtc_helper_funcs = &ipu_helper_funcs,
+};
+
+static void ipu_put_resources(struct ipu_crtc *ipu_crtc)
+{
+	if (!IS_ERR_OR_NULL(ipu_crtc->ipu_ch))
+		ipu_idmac_put(ipu_crtc->ipu_ch);
+	if (!IS_ERR_OR_NULL(ipu_crtc->dmfc))
+		ipu_dmfc_put(ipu_crtc->dmfc);
+	if (!IS_ERR_OR_NULL(ipu_crtc->dp))
+		ipu_dp_put(ipu_crtc->dp);
+	if (!IS_ERR_OR_NULL(ipu_crtc->di))
+		ipu_di_put(ipu_crtc->di);
+}
+
+static int ipu_get_resources(struct ipu_crtc *ipu_crtc,
+		struct ipu_client_platformdata *pdata)
+{
+	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
+	int ret;
+
+	ipu_crtc->ipu_ch = ipu_idmac_get(ipu, pdata->dma[0]);
+	if (IS_ERR_OR_NULL(ipu_crtc->ipu_ch)) {
+		ret = PTR_ERR(ipu_crtc->ipu_ch);
+		goto err_out;
+	}
+
+	ipu_crtc->dc = ipu_dc_get(ipu, pdata->dc);
+	if (IS_ERR(ipu_crtc->dc)) {
+		ret = PTR_ERR(ipu_crtc->dc);
+		goto err_out;
+	}
+
+	ipu_crtc->dmfc = ipu_dmfc_get(ipu, pdata->dma[0]);
+	if (IS_ERR(ipu_crtc->dmfc)) {
+		ret = PTR_ERR(ipu_crtc->dmfc);
+		goto err_out;
+	}
+
+	if (pdata->dp >= 0) {
+		ipu_crtc->dp = ipu_dp_get(ipu, pdata->dp);
+		if (IS_ERR(ipu_crtc->dp)) {
+			ret = PTR_ERR(ipu_crtc->ipu_ch);
+			goto err_out;
+		}
+	}
+
+	ipu_crtc->di = ipu_di_get(ipu, pdata->di);
+	if (IS_ERR(ipu_crtc->di)) {
+		ret = PTR_ERR(ipu_crtc->di);
+		goto err_out;
+	}
+
+	ipu_crtc->irq = ipu_idmac_channel_irq(ipu, ipu_crtc->ipu_ch,
+			IPU_IRQ_EOF);
+	ret = devm_request_irq(ipu_crtc->dev, ipu_crtc->irq, ipu_irq_handler, 0,
+			"imx_drm", ipu_crtc);
+	if (ret < 0) {
+		dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret);
+		goto err_out;
+	}
+
+	disable_irq(ipu_crtc->irq);
+
+	return 0;
+err_out:
+	ipu_put_resources(ipu_crtc);
+
+	return ret;
+}
+
+static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
+		struct ipu_client_platformdata *pdata)
+{
+	int ret;
+
+	ret = ipu_get_resources(ipu_crtc, pdata);
+	if (ret) {
+		dev_err(ipu_crtc->dev, "getting resources failed with %d.\n",
+				ret);
+		return ret;
+	}
+
+	ret = imx_drm_add_crtc(&ipu_crtc->base,
+			&ipu_crtc->imx_crtc,
+			&ipu_crtc_helper_funcs, THIS_MODULE,
+			ipu_crtc->dev->parent->of_node, pdata->di);
+	if (ret) {
+		dev_err(ipu_crtc->dev, "adding crtc failed with %d.\n", ret);
+		goto err_put_resources;
+	}
+
+	return 0;
+
+err_put_resources:
+	ipu_put_resources(ipu_crtc);
+
+	return ret;
+}
+
+static int __devinit ipu_drm_probe(struct platform_device *pdev)
+{
+	struct ipu_client_platformdata *pdata = pdev->dev.platform_data;
+	struct ipu_crtc *ipu_crtc;
+	int ret;
+
+	if (!pdata)
+		return -EINVAL;
+
+	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+	ipu_crtc = devm_kzalloc(&pdev->dev, sizeof(*ipu_crtc), GFP_KERNEL);
+	if (!ipu_crtc)
+		return -ENOMEM;
+
+	ipu_crtc->dev = &pdev->dev;
+
+	ret = ipu_crtc_init(ipu_crtc, pdata);
+
+	platform_set_drvdata(pdev, ipu_crtc);
+
+	return 0;
+}
+
+static int __devexit ipu_drm_remove(struct platform_device *pdev)
+{
+	struct ipu_crtc *ipu_crtc = platform_get_drvdata(pdev);
+
+	imx_drm_remove_crtc(ipu_crtc->imx_crtc);
+
+	ipu_put_resources(ipu_crtc);
+
+	return 0;
+}
+
+static struct platform_driver ipu_drm_driver = {
+	.driver = {
+		.name = "imx-ipuv3-crtc",
+	},
+	.probe = ipu_drm_probe,
+	.remove = __devexit_p(ipu_drm_remove),
+};
+module_platform_driver(ipu_drm_driver);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/imx-drm/parallel-display.c b/drivers/staging/imx-drm/parallel-display.c
new file mode 100644
index 00000000000..9b51d732eef
--- /dev/null
+++ b/drivers/staging/imx-drm/parallel-display.c
@@ -0,0 +1,261 @@
+/*
+ * i.MX drm driver - parallel display implementation
+ *
+ * Copyright (C) 2012 Sascha Hauer, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <linux/videodev2.h>
+
+#include "imx-drm.h"
+
+#define con_to_imxpd(x) container_of(x, struct imx_parallel_display, connector)
+#define enc_to_imxpd(x) container_of(x, struct imx_parallel_display, encoder)
+
+struct imx_parallel_display {
+	struct drm_connector connector;
+	struct imx_drm_connector *imx_drm_connector;
+	struct drm_encoder encoder;
+	struct imx_drm_encoder *imx_drm_encoder;
+	struct device *dev;
+	void *edid;
+	int edid_len;
+	u32 interface_pix_fmt;
+	int mode_valid;
+	struct drm_display_mode mode;
+};
+
+static enum drm_connector_status imx_pd_connector_detect(
+		struct drm_connector *connector, bool force)
+{
+	return connector_status_connected;
+}
+
+static void imx_pd_connector_destroy(struct drm_connector *connector)
+{
+	/* do not free here */
+}
+
+static int imx_pd_connector_get_modes(struct drm_connector *connector)
+{
+	struct imx_parallel_display *imxpd = con_to_imxpd(connector);
+	int num_modes = 0;
+
+	if (imxpd->edid) {
+		drm_mode_connector_update_edid_property(connector, imxpd->edid);
+		num_modes = drm_add_edid_modes(connector, imxpd->edid);
+	}
+
+	if (imxpd->mode_valid) {
+		struct drm_display_mode *mode = drm_mode_create(connector->dev);
+		drm_mode_copy(mode, &imxpd->mode);
+		mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+		drm_mode_probed_add(connector, mode);
+		num_modes++;
+	}
+
+	return num_modes;
+}
+
+static int imx_pd_connector_mode_valid(struct drm_connector *connector,
+			  struct drm_display_mode *mode)
+{
+	return 0;
+}
+
+static struct drm_encoder *imx_pd_connector_best_encoder(
+		struct drm_connector *connector)
+{
+	struct imx_parallel_display *imxpd = con_to_imxpd(connector);
+
+	return &imxpd->encoder;
+}
+
+static void imx_pd_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+}
+
+static bool imx_pd_encoder_mode_fixup(struct drm_encoder *encoder,
+			   const struct drm_display_mode *mode,
+			   struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void imx_pd_encoder_prepare(struct drm_encoder *encoder)
+{
+	struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
+
+	imx_drm_crtc_panel_format(encoder->crtc, DRM_MODE_ENCODER_NONE,
+			imxpd->interface_pix_fmt);
+}
+
+static void imx_pd_encoder_commit(struct drm_encoder *encoder)
+{
+}
+
+static void imx_pd_encoder_mode_set(struct drm_encoder *encoder,
+			 struct drm_display_mode *mode,
+			 struct drm_display_mode *adjusted_mode)
+{
+}
+
+static void imx_pd_encoder_disable(struct drm_encoder *encoder)
+{
+}
+
+static void imx_pd_encoder_destroy(struct drm_encoder *encoder)
+{
+	/* do not free here */
+}
+
+static struct drm_connector_funcs imx_pd_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.detect = imx_pd_connector_detect,
+	.destroy = imx_pd_connector_destroy,
+};
+
+static struct drm_connector_helper_funcs imx_pd_connector_helper_funcs = {
+	.get_modes = imx_pd_connector_get_modes,
+	.best_encoder = imx_pd_connector_best_encoder,
+	.mode_valid = imx_pd_connector_mode_valid,
+};
+
+static struct drm_encoder_funcs imx_pd_encoder_funcs = {
+	.destroy = imx_pd_encoder_destroy,
+};
+
+static struct drm_encoder_helper_funcs imx_pd_encoder_helper_funcs = {
+	.dpms = imx_pd_encoder_dpms,
+	.mode_fixup = imx_pd_encoder_mode_fixup,
+	.prepare = imx_pd_encoder_prepare,
+	.commit = imx_pd_encoder_commit,
+	.mode_set = imx_pd_encoder_mode_set,
+	.disable = imx_pd_encoder_disable,
+};
+
+static int imx_pd_register(struct imx_parallel_display *imxpd)
+{
+	int ret;
+
+	drm_mode_connector_attach_encoder(&imxpd->connector, &imxpd->encoder);
+
+	imxpd->connector.funcs = &imx_pd_connector_funcs;
+	imxpd->encoder.funcs = &imx_pd_encoder_funcs;
+
+	imxpd->encoder.encoder_type = DRM_MODE_ENCODER_NONE;
+	imxpd->connector.connector_type = DRM_MODE_CONNECTOR_VGA;
+
+	drm_encoder_helper_add(&imxpd->encoder, &imx_pd_encoder_helper_funcs);
+	ret = imx_drm_add_encoder(&imxpd->encoder, &imxpd->imx_drm_encoder,
+			THIS_MODULE);
+	if (ret) {
+		dev_err(imxpd->dev, "adding encoder failed with %d\n", ret);
+		return ret;
+	}
+
+	drm_connector_helper_add(&imxpd->connector,
+			&imx_pd_connector_helper_funcs);
+
+	ret = imx_drm_add_connector(&imxpd->connector,
+			&imxpd->imx_drm_connector, THIS_MODULE);
+	if (ret) {
+		imx_drm_remove_encoder(imxpd->imx_drm_encoder);
+		dev_err(imxpd->dev, "adding connector failed with %d\n", ret);
+		return ret;
+	}
+
+	imxpd->connector.encoder = &imxpd->encoder;
+
+	return 0;
+}
+
+static int __devinit imx_pd_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	const u8 *edidp;
+	struct imx_parallel_display *imxpd;
+	int ret;
+	const char *fmt;
+
+	imxpd = devm_kzalloc(&pdev->dev, sizeof(*imxpd), GFP_KERNEL);
+	if (!imxpd)
+		return -ENOMEM;
+
+	edidp = of_get_property(np, "edid", &imxpd->edid_len);
+	if (edidp)
+		imxpd->edid = kmemdup(edidp, imxpd->edid_len, GFP_KERNEL);
+
+	ret = of_property_read_string(np, "interface-pix-fmt", &fmt);
+	if (!ret) {
+		if (!strcmp(fmt, "rgb24"))
+			imxpd->interface_pix_fmt = V4L2_PIX_FMT_RGB24;
+		else if (!strcmp(fmt, "rgb565"))
+			imxpd->interface_pix_fmt = V4L2_PIX_FMT_RGB565;
+	}
+
+	imxpd->dev = &pdev->dev;
+
+	ret = imx_pd_register(imxpd);
+	if (ret)
+		return ret;
+
+	ret = imx_drm_encoder_add_possible_crtcs(imxpd->imx_drm_encoder, np);
+
+	platform_set_drvdata(pdev, imxpd);
+
+	return 0;
+}
+
+static int __devexit imx_pd_remove(struct platform_device *pdev)
+{
+	struct imx_parallel_display *imxpd = platform_get_drvdata(pdev);
+	struct drm_connector *connector = &imxpd->connector;
+	struct drm_encoder *encoder = &imxpd->encoder;
+
+	drm_mode_connector_detach_encoder(connector, encoder);
+
+	imx_drm_remove_connector(imxpd->imx_drm_connector);
+	imx_drm_remove_encoder(imxpd->imx_drm_encoder);
+
+	return 0;
+}
+
+static const struct of_device_id imx_pd_dt_ids[] = {
+	{ .compatible = "fsl,imx-parallel-display", },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver imx_pd_driver = {
+	.probe		= imx_pd_probe,
+	.remove		= __devexit_p(imx_pd_remove),
+	.driver		= {
+		.of_match_table = imx_pd_dt_ids,
+		.name	= "imx-parallel-display",
+		.owner	= THIS_MODULE,
+	},
+};
+
+module_platform_driver(imx_pd_driver);
+
+MODULE_DESCRIPTION("i.MX parallel display driver");
+MODULE_AUTHOR("Sascha Hauer, Pengutronix");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/ipack/Kconfig b/drivers/staging/ipack/Kconfig
index af321789ddd..4cf47066140 100644
--- a/drivers/staging/ipack/Kconfig
+++ b/drivers/staging/ipack/Kconfig
@@ -4,6 +4,7 @@
 
 menuconfig IPACK_BUS
 	tristate "IndustryPack bus support"
+	depends on HAS_IOMEM
 	---help---
 	  If you say Y here you get support for the IndustryPack Framework
 	  for drivers for many types of boards that support this industrial
diff --git a/drivers/staging/ipack/TODO b/drivers/staging/ipack/TODO
index b21d33ab144..ffafe6911a7 100644
--- a/drivers/staging/ipack/TODO
+++ b/drivers/staging/ipack/TODO
@@ -12,29 +12,8 @@ operations between the two kind of boards.
 TODO
 ====
 
-TPCI-200
---------
-
-* It has a linked list with the tpci200 devices it is managing. Get rid of it
-  and use driver_for_each_device() instead.
-
-IP-OCTAL
---------
-
-* It has a linked list which saves the devices it is currently
-  managing. It should use the driver_for_each_device() function. It is not there
-  due to the impossibility of using container_of macro to recover the
-  corresponding "struct ipoctal" because the attribute "struct ipack_device" is
-  a pointer. This code should be refactored.
-
-Ipack
------
-
-* The structures and API exported can be improved a lot. For example, the
-  way to unregistering IP module devices, doing the IP module driver a call to
-  remove_device() to notify the carrier driver, or the opposite with the call to
-  the ipack_driver_ops' remove() function could be improved.
-
+checkpatch.pl warnings
+cleanup
 
 Contact
 =======
diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c
index 2b83fa8e550..bb8aa70281c 100644
--- a/drivers/staging/ipack/bridges/tpci200.c
+++ b/drivers/staging/ipack/bridges/tpci200.c
@@ -14,38 +14,32 @@
 #include <linux/module.h>
 #include "tpci200.h"
 
-static struct ipack_bus_ops tpci200_bus_ops;
-
-/* TPCI200 controls registers */
-static int control_reg[] = {
-	TPCI200_CONTROL_A_REG,
-	TPCI200_CONTROL_B_REG,
-	TPCI200_CONTROL_C_REG,
-	TPCI200_CONTROL_D_REG
+static u16 tpci200_status_timeout[] = {
+	TPCI200_A_TIMEOUT,
+	TPCI200_B_TIMEOUT,
+	TPCI200_C_TIMEOUT,
+	TPCI200_D_TIMEOUT,
 };
 
-/* Linked list to save the registered devices */
-static LIST_HEAD(tpci200_list);
-
-static int tpci200_slot_unregister(struct ipack_device *dev);
+static u16 tpci200_status_error[] = {
+	TPCI200_A_ERROR,
+	TPCI200_B_ERROR,
+	TPCI200_C_ERROR,
+	TPCI200_D_ERROR,
+};
 
 static struct tpci200_board *check_slot(struct ipack_device *dev)
 {
 	struct tpci200_board *tpci200;
-	int found = 0;
 
 	if (dev == NULL)
 		return NULL;
 
-	list_for_each_entry(tpci200, &tpci200_list, list) {
-		if (tpci200->number == dev->bus_nr) {
-			found = 1;
-			break;
-		}
-	}
 
-	if (!found) {
-		dev_err(&dev->dev, "Carrier not found\n");
+	tpci200 = dev_get_drvdata(dev->bus->parent);
+
+	if (tpci200 == NULL) {
+		dev_info(&dev->dev, "carrier board not found\n");
 		return NULL;
 	}
 
@@ -59,296 +53,190 @@ static struct tpci200_board *check_slot(struct ipack_device *dev)
 	return tpci200;
 }
 
-static inline unsigned char __tpci200_read8(void __iomem *address,
-					    unsigned long offset)
-{
-	return ioread8(address + (offset^1));
-}
-
-static inline unsigned short __tpci200_read16(void __iomem *address,
-					      unsigned long offset)
+static void tpci200_clear_mask(struct tpci200_board *tpci200,
+			       __le16 __iomem *addr, u16 mask)
 {
-	return ioread16(address + offset);
+	unsigned long flags;
+	spin_lock_irqsave(&tpci200->regs_lock, flags);
+	iowrite16(ioread16(addr) & (~mask), addr);
+	spin_unlock_irqrestore(&tpci200->regs_lock, flags);
 }
 
-static inline unsigned int __tpci200_read32(void __iomem *address,
-					    unsigned long offset)
+static void tpci200_set_mask(struct tpci200_board *tpci200,
+			     __le16 __iomem *addr, u16 mask)
 {
-	return swahw32(ioread32(address + offset));
+	unsigned long flags;
+	spin_lock_irqsave(&tpci200->regs_lock, flags);
+	iowrite16(ioread16(addr) | mask, addr);
+	spin_unlock_irqrestore(&tpci200->regs_lock, flags);
 }
 
-static inline void __tpci200_write8(unsigned char value,
-				    void __iomem *address, unsigned long offset)
+static void tpci200_unregister(struct tpci200_board *tpci200)
 {
-	iowrite8(value, address+(offset^1));
-}
+	int i;
 
-static inline void __tpci200_write16(unsigned short value,
-				     void __iomem *address,
-				     unsigned long offset)
-{
-	iowrite16(value, address+offset);
-}
+	free_irq(tpci200->info->pdev->irq, (void *) tpci200);
 
-static inline void __tpci200_write32(unsigned int value,
-				     void __iomem *address,
-				     unsigned long offset)
-{
-	iowrite32(swahw32(value), address+offset);
-}
+	pci_iounmap(tpci200->info->pdev, tpci200->info->interface_regs);
+	pci_iounmap(tpci200->info->pdev, tpci200->info->ioidint_space);
+	pci_iounmap(tpci200->info->pdev, tpci200->info->mem8_space);
+	pci_iounmap(tpci200->info->pdev, tpci200->info->cfg_regs);
 
-static struct ipack_addr_space *get_slot_address_space(struct ipack_device *dev,
-						       int space)
-{
-	struct ipack_addr_space *addr;
+	pci_release_region(tpci200->info->pdev, TPCI200_IP_INTERFACE_BAR);
+	pci_release_region(tpci200->info->pdev, TPCI200_IO_ID_INT_SPACES_BAR);
+	pci_release_region(tpci200->info->pdev, TPCI200_MEM8_SPACE_BAR);
+	pci_release_region(tpci200->info->pdev, TPCI200_CFG_MEM_BAR);
 
-	switch (space) {
-	case IPACK_IO_SPACE:
-		addr = &dev->io_space;
-		break;
-	case IPACK_ID_SPACE:
-		addr = &dev->id_space;
-		break;
-	case IPACK_MEM_SPACE:
-		addr = &dev->mem_space;
-		break;
-	default:
-		dev_err(&dev->dev,
-			"Slot [%d:%d] space number %d doesn't exist !\n",
-			dev->bus_nr, dev->slot, space);
-		return NULL;
-		break;
-	}
+	pci_disable_device(tpci200->info->pdev);
+	pci_dev_put(tpci200->info->pdev);
 
-	if ((addr->size == 0) || (addr->address == NULL)) {
-		dev_err(&dev->dev, "Error, slot space not mapped !\n");
-		return NULL;
+	for (i = 0; i < TPCI200_NB_SLOT; i++) {
+		tpci200->slots[i].io_phys.address = NULL;
+		tpci200->slots[i].io_phys.size = 0;
+		tpci200->slots[i].id_phys.address = NULL;
+		tpci200->slots[i].id_phys.size = 0;
+		tpci200->slots[i].int_phys.address = NULL;
+		tpci200->slots[i].int_phys.size = 0;
+		tpci200->slots[i].mem_phys.address = NULL;
+		tpci200->slots[i].mem_phys.size = 0;
 	}
-
-	return addr;
 }
 
-static int tpci200_read8(struct ipack_device *dev, int space,
-			 unsigned long offset, unsigned char *value)
+static void tpci200_enable_irq(struct tpci200_board *tpci200,
+			       int islot)
 {
-	struct ipack_addr_space *addr;
-	struct tpci200_board *tpci200;
-
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
-
-	addr = get_slot_address_space(dev, space);
-	if (addr == NULL)
-		return -EINVAL;
-
-	if (offset >= addr->size) {
-		dev_err(&dev->dev, "Error, slot space offset error !\n");
-		return -EFAULT;
-	}
-
-	*value = __tpci200_read8(addr->address, offset);
-
-	return 0;
+	tpci200_set_mask(tpci200,
+			&tpci200->info->interface_regs->control[islot],
+			TPCI200_INT0_EN | TPCI200_INT1_EN);
 }
 
-static int tpci200_read16(struct ipack_device *dev, int space,
-			  unsigned long offset, unsigned short *value)
+static void tpci200_disable_irq(struct tpci200_board *tpci200,
+				int islot)
 {
-	struct ipack_addr_space *addr;
-	struct tpci200_board *tpci200;
-
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
-
-	addr = get_slot_address_space(dev, space);
-	if (addr == NULL)
-		return -EINVAL;
-
-	if ((offset+2) >= addr->size) {
-		dev_err(&dev->dev, "Error, slot space offset error !\n");
-		return -EFAULT;
-	}
-	*value = __tpci200_read16(addr->address, offset);
-
-	return 0;
+	tpci200_clear_mask(tpci200,
+			&tpci200->info->interface_regs->control[islot],
+			TPCI200_INT0_EN | TPCI200_INT1_EN);
 }
 
-static int tpci200_read32(struct ipack_device *dev, int space,
-			  unsigned long offset, unsigned int *value)
+static irqreturn_t tpci200_slot_irq(struct slot_irq *slot_irq)
 {
-	struct ipack_addr_space *addr;
-	struct tpci200_board *tpci200;
-
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
-
-	addr = get_slot_address_space(dev, space);
-	if (addr == NULL)
-		return -EINVAL;
+	irqreturn_t ret;
 
-	if ((offset+4) >= addr->size) {
-		dev_err(&dev->dev, "Error, slot space offset error !\n");
-		return -EFAULT;
-	}
-
-	*value = __tpci200_read32(addr->address, offset);
+	if (!slot_irq)
+		return -ENODEV;
+	ret = slot_irq->handler(slot_irq->arg);
 
-	return 0;
+	return ret;
 }
 
-static int tpci200_write8(struct ipack_device *dev, int space,
-			  unsigned long offset, unsigned char value)
+static irqreturn_t tpci200_interrupt(int irq, void *dev_id)
 {
-	struct ipack_addr_space *addr;
-	struct tpci200_board *tpci200;
+	struct tpci200_board *tpci200 = (struct tpci200_board *) dev_id;
+	struct slot_irq *slot_irq;
+	irqreturn_t ret;
+	u16 status_reg;
+	int i;
 
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
+	/* Read status register */
+	status_reg = ioread16(&tpci200->info->interface_regs->status);
 
-	addr = get_slot_address_space(dev, space);
-	if (addr == NULL)
-		return -EINVAL;
+	/* Did we cause the interrupt? */
+	if (!(status_reg & TPCI200_SLOT_INT_MASK))
+		return IRQ_NONE;
 
-	if (offset >= addr->size) {
-		dev_err(&dev->dev, "Error, slot space offset error !\n");
-		return -EFAULT;
+	/* callback to the IRQ handler for the corresponding slot */
+	rcu_read_lock();
+	for (i = 0; i < TPCI200_NB_SLOT; i++) {
+		if (!(status_reg & ((TPCI200_A_INT0 | TPCI200_A_INT1) << (2 * i))))
+			continue;
+		slot_irq = rcu_dereference(tpci200->slots[i].irq);
+		ret = tpci200_slot_irq(slot_irq);
+		if (ret == -ENODEV) {
+			dev_info(&tpci200->info->pdev->dev,
+				 "No registered ISR for slot [%d:%d]!. IRQ will be disabled.\n",
+				 tpci200->number, i);
+			tpci200_disable_irq(tpci200, i);
+		}
 	}
+	rcu_read_unlock();
 
-	__tpci200_write8(value, addr->address, offset);
-
-	return 0;
+	return IRQ_HANDLED;
 }
 
-static int tpci200_write16(struct ipack_device *dev, int space,
-			   unsigned long offset, unsigned short value)
+static int tpci200_free_irq(struct ipack_device *dev)
 {
-	struct ipack_addr_space *addr;
+	struct slot_irq *slot_irq;
 	struct tpci200_board *tpci200;
 
 	tpci200 = check_slot(dev);
 	if (tpci200 == NULL)
 		return -EINVAL;
 
-	addr = get_slot_address_space(dev, space);
-	if (addr == NULL)
-		return -EINVAL;
+	if (mutex_lock_interruptible(&tpci200->mutex))
+		return -ERESTARTSYS;
 
-	if ((offset+2) >= addr->size) {
-		dev_err(&dev->dev, "Error, slot space offset error !\n");
-		return -EFAULT;
+	if (tpci200->slots[dev->slot].irq == NULL) {
+		mutex_unlock(&tpci200->mutex);
+		return -EINVAL;
 	}
 
-	__tpci200_write16(value, addr->address, offset);
-
+	tpci200_disable_irq(tpci200, dev->slot);
+	slot_irq = tpci200->slots[dev->slot].irq;
+	/* uninstall handler */
+	RCU_INIT_POINTER(tpci200->slots[dev->slot].irq, NULL);
+	synchronize_rcu();
+	kfree(slot_irq);
+	mutex_unlock(&tpci200->mutex);
 	return 0;
 }
 
-static int tpci200_write32(struct ipack_device *dev, int space,
-			   unsigned long offset, unsigned int value)
+static int tpci200_request_irq(struct ipack_device *dev,
+			       irqreturn_t (*handler)(void *), void *arg)
 {
-	struct ipack_addr_space *addr;
+	int res = 0;
+	struct slot_irq *slot_irq;
 	struct tpci200_board *tpci200;
 
 	tpci200 = check_slot(dev);
 	if (tpci200 == NULL)
 		return -EINVAL;
 
-	addr = get_slot_address_space(dev, space);
-	if (addr == NULL)
-		return -EINVAL;
+	if (mutex_lock_interruptible(&tpci200->mutex))
+		return -ERESTARTSYS;
 
-	if ((offset+4) >= addr->size) {
-		dev_err(&dev->dev, "Error, slot space offset error !\n");
-		return -EFAULT;
+	if (tpci200->slots[dev->slot].irq != NULL) {
+		dev_err(&dev->dev,
+			"Slot [%d:%d] IRQ already registered !\n", dev->bus_nr,
+			dev->slot);
+		res = -EINVAL;
+		goto out_unlock;
 	}
 
-	__tpci200_write32(value, addr->address, offset);
-
-	return 0;
-}
-
-static void tpci200_unregister(struct tpci200_board *tpci200)
-{
-	int i;
-
-	free_irq(tpci200->info->pdev->irq, (void *) tpci200);
-
-	pci_iounmap(tpci200->info->pdev, tpci200->info->interface_regs);
-	pci_iounmap(tpci200->info->pdev, tpci200->info->ioidint_space);
-	pci_iounmap(tpci200->info->pdev, tpci200->info->mem8_space);
-
-	pci_release_region(tpci200->info->pdev, TPCI200_IP_INTERFACE_BAR);
-	pci_release_region(tpci200->info->pdev, TPCI200_IO_ID_INT_SPACES_BAR);
-	pci_release_region(tpci200->info->pdev, TPCI200_MEM8_SPACE_BAR);
-
-	pci_disable_device(tpci200->info->pdev);
-	pci_dev_put(tpci200->info->pdev);
-
-	for (i = 0; i < TPCI200_NB_SLOT; i++) {
-		tpci200->slots[i].io_phys.address = NULL;
-		tpci200->slots[i].io_phys.size = 0;
-		tpci200->slots[i].id_phys.address = NULL;
-		tpci200->slots[i].id_phys.size = 0;
-		tpci200->slots[i].mem_phys.address = NULL;
-		tpci200->slots[i].mem_phys.size = 0;
+	slot_irq = kzalloc(sizeof(struct slot_irq), GFP_KERNEL);
+	if (slot_irq == NULL) {
+		dev_err(&dev->dev,
+			"Slot [%d:%d] unable to allocate memory for IRQ !\n",
+			dev->bus_nr, dev->slot);
+		res = -ENOMEM;
+		goto out_unlock;
 	}
-}
 
-static irqreturn_t tpci200_interrupt(int irq, void *dev_id)
-{
-	struct tpci200_board *tpci200 = (struct tpci200_board *) dev_id;
-	int i;
-	unsigned short status_reg, reg_value;
-	unsigned short unhandled_ints = 0;
-	irqreturn_t ret = IRQ_NONE;
+	/*
+	 * WARNING: Setup Interrupt Vector in the IndustryPack device
+	 * before an IRQ request.
+	 * Read the User Manual of your IndustryPack device to know
+	 * where to write the vector in memory.
+	 */
+	slot_irq->handler = handler;
+	slot_irq->arg = arg;
+	slot_irq->holder = dev;
 
-	/* Read status register */
-	status_reg = readw(tpci200->info->interface_regs +
-			   TPCI200_STATUS_REG);
-
-	if (status_reg & TPCI200_SLOT_INT_MASK) {
-		unhandled_ints = status_reg & TPCI200_SLOT_INT_MASK;
-		/* callback to the IRQ handler for the corresponding slot */
-		for (i = 0; i < TPCI200_NB_SLOT; i++) {
-			if ((tpci200->slots[i].irq != NULL) &&
-			    (status_reg & ((TPCI200_A_INT0 | TPCI200_A_INT1) << (2*i)))) {
-
-				ret = tpci200->slots[i].irq->handler(tpci200->slots[i].irq->arg);
-
-				/* Dummy reads */
-				readw(tpci200->slots[i].dev->io_space.address +
-				      0xC0);
-				readw(tpci200->slots[i].dev->io_space.address +
-				      0xC2);
-
-				unhandled_ints &= ~(((TPCI200_A_INT0 | TPCI200_A_INT1) << (2*i)));
-			}
-		}
-	}
-	/* Interrupt not handled are disabled */
-	if (unhandled_ints) {
-		for (i = 0; i < TPCI200_NB_SLOT; i++) {
-			if (unhandled_ints & ((TPCI200_INT0_EN | TPCI200_INT1_EN) << (2*i))) {
-				dev_info(&tpci200->slots[i].dev->dev,
-					 "No registered ISR for slot [%d:%d]!. IRQ will be disabled.\n",
-					 tpci200->number, i);
-				reg_value = readw(
-					tpci200->info->interface_regs +
-					control_reg[i]);
-				reg_value &=
-					~(TPCI200_INT0_EN | TPCI200_INT1_EN);
-				writew(reg_value,
-				       (tpci200->info->interface_regs +
-					control_reg[i]));
-			}
-		}
-	}
+	rcu_assign_pointer(tpci200->slots[dev->slot].irq, slot_irq);
+	tpci200_enable_irq(tpci200, dev->slot);
 
-	return ret;
+out_unlock:
+	mutex_unlock(&tpci200->mutex);
+	return res;
 }
 
 static int tpci200_register(struct tpci200_board *tpci200)
@@ -398,18 +286,21 @@ static int tpci200_register(struct tpci200_board *tpci200)
 
 	/* Map internal tpci200 driver user space */
 	tpci200->info->interface_regs =
-		ioremap(pci_resource_start(tpci200->info->pdev,
+		ioremap_nocache(pci_resource_start(tpci200->info->pdev,
 					   TPCI200_IP_INTERFACE_BAR),
 			TPCI200_IFACE_SIZE);
 	tpci200->info->ioidint_space =
-		ioremap(pci_resource_start(tpci200->info->pdev,
+		ioremap_nocache(pci_resource_start(tpci200->info->pdev,
 					   TPCI200_IO_ID_INT_SPACES_BAR),
 			TPCI200_IOIDINT_SIZE);
 	tpci200->info->mem8_space =
-		ioremap(pci_resource_start(tpci200->info->pdev,
+		ioremap_nocache(pci_resource_start(tpci200->info->pdev,
 					   TPCI200_MEM8_SPACE_BAR),
 			TPCI200_MEM8_SIZE);
 
+	/* Initialize lock that protects interface_regs */
+	spin_lock_init(&tpci200->regs_lock);
+
 	ioidint_base = pci_resource_start(tpci200->info->pdev,
 					  TPCI200_IO_ID_INT_SPACES_BAR);
 	mem_base = pci_resource_start(tpci200->info->pdev,
@@ -437,12 +328,16 @@ static int tpci200_register(struct tpci200_board *tpci200)
 			TPCI200_ID_SPACE_OFF + TPCI200_ID_SPACE_GAP*i;
 		tpci200->slots[i].id_phys.size = TPCI200_ID_SPACE_SIZE;
 
+		tpci200->slots[i].int_phys.address =
+			(void __iomem *)ioidint_base +
+			TPCI200_INT_SPACE_OFF + TPCI200_INT_SPACE_GAP * i;
+		tpci200->slots[i].int_phys.size = TPCI200_INT_SPACE_SIZE;
+
 		tpci200->slots[i].mem_phys.address =
 			(void __iomem *)mem_base + TPCI200_MEM8_GAP*i;
 		tpci200->slots[i].mem_phys.size = TPCI200_MEM8_SIZE;
 
-		writew(slot_ctrl, (tpci200->info->interface_regs +
-				   control_reg[i]));
+		writew(slot_ctrl, &tpci200->info->interface_regs->control[i]);
 	}
 
 	res = request_irq(tpci200->info->pdev->irq,
@@ -467,70 +362,6 @@ out_disable_pci:
 	return res;
 }
 
-static int __tpci200_request_irq(struct tpci200_board *tpci200,
-				 struct ipack_device *dev)
-{
-	unsigned short slot_ctrl;
-
-	/* Set the default parameters of the slot
-	 * INT0 enabled, level sensitive
-	 * INT1 enabled, level sensitive
-	 * error interrupt disabled
-	 * timeout interrupt disabled
-	 * recover time disabled
-	 * clock rate 8 MHz
-	 */
-	slot_ctrl = TPCI200_INT0_EN | TPCI200_INT1_EN;
-	writew(slot_ctrl, (tpci200->info->interface_regs +
-			   control_reg[dev->slot]));
-
-	return 0;
-}
-
-static void __tpci200_free_irq(struct tpci200_board *tpci200,
-			       struct ipack_device *dev)
-{
-	unsigned short slot_ctrl;
-
-	/* Set the default parameters of the slot
-	 * INT0 disabled, level sensitive
-	 * INT1 disabled, level sensitive
-	 * error interrupt disabled
-	 * timeout interrupt disabled
-	 * recover time disabled
-	 * clock rate 8 MHz
-	 */
-	slot_ctrl = 0;
-	writew(slot_ctrl, (tpci200->info->interface_regs +
-			   control_reg[dev->slot]));
-}
-
-static int tpci200_free_irq(struct ipack_device *dev)
-{
-	struct slot_irq *slot_irq;
-	struct tpci200_board *tpci200;
-
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
-
-	if (mutex_lock_interruptible(&tpci200->mutex))
-		return -ERESTARTSYS;
-
-	if (tpci200->slots[dev->slot].irq == NULL) {
-		mutex_unlock(&tpci200->mutex);
-		return -EINVAL;
-	}
-
-	__tpci200_free_irq(tpci200, dev);
-	slot_irq = tpci200->slots[dev->slot].irq;
-	tpci200->slots[dev->slot].irq = NULL;
-	kfree(slot_irq);
-
-	mutex_unlock(&tpci200->mutex);
-	return 0;
-}
-
 static int tpci200_slot_unmap_space(struct ipack_device *dev, int space)
 {
 	struct ipack_addr_space *virt_addr_space;
@@ -562,6 +393,15 @@ static int tpci200_slot_unmap_space(struct ipack_device *dev, int space)
 		}
 		virt_addr_space = &dev->id_space;
 		break;
+	case IPACK_INT_SPACE:
+		if (dev->int_space.address == NULL) {
+			dev_info(&dev->dev,
+				 "Slot [%d:%d] INT space not mapped !\n",
+				 dev->bus_nr, dev->slot);
+			goto out_unlock;
+		}
+		virt_addr_space = &dev->int_space;
+		break;
 	case IPACK_MEM_SPACE:
 		if (dev->mem_space.address == NULL) {
 			dev_info(&dev->dev,
@@ -588,29 +428,6 @@ out_unlock:
 	return 0;
 }
 
-static int tpci200_slot_unregister(struct ipack_device *dev)
-{
-	struct tpci200_board *tpci200;
-
-	if (dev == NULL)
-		return -ENODEV;
-
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
-
-	tpci200_free_irq(dev);
-
-	if (mutex_lock_interruptible(&tpci200->mutex))
-		return -ERESTARTSYS;
-
-	ipack_device_unregister(dev);
-	tpci200->slots[dev->slot].dev = NULL;
-	mutex_unlock(&tpci200->mutex);
-
-	return 0;
-}
-
 static int tpci200_slot_map_space(struct ipack_device *dev,
 				  unsigned int memory_size, int space)
 {
@@ -654,6 +471,19 @@ static int tpci200_slot_map_space(struct ipack_device *dev,
 		phys_address = tpci200->slots[dev->slot].id_phys.address;
 		size_to_map = tpci200->slots[dev->slot].id_phys.size;
 		break;
+	case IPACK_INT_SPACE:
+		if (dev->int_space.address != NULL) {
+			dev_err(&dev->dev,
+				"Slot [%d:%d] INT space already mapped !\n",
+				tpci200->number, dev->slot);
+			res = -EINVAL;
+			goto out_unlock;
+		}
+		virt_addr_space = &dev->int_space;
+
+		phys_address = tpci200->slots[dev->slot].int_phys.address;
+		size_to_map = tpci200->slots[dev->slot].int_phys.size;
+		break;
 	case IPACK_MEM_SPACE:
 		if (dev->mem_space.address != NULL) {
 			dev_err(&dev->dev,
@@ -685,85 +515,109 @@ static int tpci200_slot_map_space(struct ipack_device *dev,
 
 	virt_addr_space->size = size_to_map;
 	virt_addr_space->address =
-		ioremap((unsigned long)phys_address, size_to_map);
+		ioremap_nocache((unsigned long)phys_address, size_to_map);
 
 out_unlock:
 	mutex_unlock(&tpci200->mutex);
 	return res;
 }
 
-static int tpci200_request_irq(struct ipack_device *dev, int vector,
-			       int (*handler)(void *), void *arg)
+static int tpci200_get_clockrate(struct ipack_device *dev)
 {
-	int res;
-	struct slot_irq *slot_irq;
-	struct tpci200_board *tpci200;
+	struct tpci200_board *tpci200 = check_slot(dev);
+	__le16 __iomem *addr;
 
-	tpci200 = check_slot(dev);
-	if (tpci200 == NULL)
-		return -EINVAL;
+	if (!tpci200)
+		return -ENODEV;
 
-	if (mutex_lock_interruptible(&tpci200->mutex))
-		return -ERESTARTSYS;
+	addr = &tpci200->info->interface_regs->control[dev->slot];
+	return (ioread16(addr) & TPCI200_CLK32) ? 32 : 8;
+}
 
-	if (tpci200->slots[dev->slot].irq != NULL) {
-		dev_err(&dev->dev,
-			"Slot [%d:%d] IRQ already registered !\n", dev->bus_nr,
-			dev->slot);
-		res = -EINVAL;
-		goto out_unlock;
-	}
+static int tpci200_set_clockrate(struct ipack_device *dev, int mherz)
+{
+	struct tpci200_board *tpci200 = check_slot(dev);
+	__le16 __iomem *addr;
 
-	slot_irq = kzalloc(sizeof(struct slot_irq), GFP_KERNEL);
-	if (slot_irq == NULL) {
-		dev_err(&dev->dev,
-			"Slot [%d:%d] unable to allocate memory for IRQ !\n",
-			dev->bus_nr, dev->slot);
-		res = -ENOMEM;
-		goto out_unlock;
+	if (!tpci200)
+		return -ENODEV;
+
+	addr = &tpci200->info->interface_regs->control[dev->slot];
+
+	switch (mherz) {
+	case 8:
+		tpci200_clear_mask(tpci200, addr, TPCI200_CLK32);
+		break;
+	case 32:
+		tpci200_set_mask(tpci200, addr, TPCI200_CLK32);
+		break;
+	default:
+		return -EINVAL;
 	}
+	return 0;
+}
 
-	/*
-	 * WARNING: Setup Interrupt Vector in the IndustryPack device
-	 * before an IRQ request.
-	 * Read the User Manual of your IndustryPack device to know
-	 * where to write the vector in memory.
-	 */
-	slot_irq->vector = vector;
-	slot_irq->handler = handler;
-	slot_irq->arg = arg;
+static int tpci200_get_error(struct ipack_device *dev)
+{
+	struct tpci200_board *tpci200 = check_slot(dev);
+	__le16 __iomem *addr;
+	u16 mask;
 
-	tpci200->slots[dev->slot].irq = slot_irq;
-	res = __tpci200_request_irq(tpci200, dev);
+	if (!tpci200)
+		return -ENODEV;
 
-out_unlock:
-	mutex_unlock(&tpci200->mutex);
-	return res;
+	addr = &tpci200->info->interface_regs->status;
+	mask = tpci200_status_error[dev->slot];
+	return (ioread16(addr) & mask) ? 1 : 0;
 }
 
-static void tpci200_uninstall(struct tpci200_board *tpci200)
+static int tpci200_get_timeout(struct ipack_device *dev)
 {
-	int i;
+	struct tpci200_board *tpci200 = check_slot(dev);
+	__le16 __iomem *addr;
+	u16 mask;
 
-	for (i = 0; i < TPCI200_NB_SLOT; i++)
-		tpci200_slot_unregister(tpci200->slots[i].dev);
+	if (!tpci200)
+		return -ENODEV;
+
+	addr = &tpci200->info->interface_regs->status;
+	mask = tpci200_status_timeout[dev->slot];
+
+	return (ioread16(addr) & mask) ? 1 : 0;
+}
+
+static int tpci200_reset_timeout(struct ipack_device *dev)
+{
+	struct tpci200_board *tpci200 = check_slot(dev);
+	__le16 __iomem *addr;
+	u16 mask;
+
+	if (!tpci200)
+		return -ENODEV;
+
+	addr = &tpci200->info->interface_regs->status;
+	mask = tpci200_status_timeout[dev->slot];
 
+	iowrite16(mask, addr);
+	return 0;
+}
+
+static void tpci200_uninstall(struct tpci200_board *tpci200)
+{
 	tpci200_unregister(tpci200);
 	kfree(tpci200->slots);
 }
 
-static struct ipack_bus_ops tpci200_bus_ops = {
+static const struct ipack_bus_ops tpci200_bus_ops = {
 	.map_space = tpci200_slot_map_space,
 	.unmap_space = tpci200_slot_unmap_space,
 	.request_irq = tpci200_request_irq,
 	.free_irq = tpci200_free_irq,
-	.read8 = tpci200_read8,
-	.read16 = tpci200_read16,
-	.read32 = tpci200_read32,
-	.write8 = tpci200_write8,
-	.write16 = tpci200_write16,
-	.write32 = tpci200_write32,
-	.remove_device = tpci200_slot_unregister,
+	.get_clockrate = tpci200_get_clockrate,
+	.set_clockrate = tpci200_set_clockrate,
+	.get_error     = tpci200_get_error,
+	.get_timeout   = tpci200_get_timeout,
+	.reset_timeout = tpci200_reset_timeout,
 };
 
 static int tpci200_install(struct tpci200_board *tpci200)
@@ -786,11 +640,12 @@ static int tpci200_install(struct tpci200_board *tpci200)
 	return 0;
 }
 
-static int tpci200_pciprobe(struct pci_dev *pdev,
-			    const struct pci_device_id *id)
+static int tpci200_pci_probe(struct pci_dev *pdev,
+			     const struct pci_device_id *id)
 {
 	int ret, i;
 	struct tpci200_board *tpci200;
+	u32 reg32;
 
 	tpci200 = kzalloc(sizeof(struct tpci200_board), GFP_KERNEL);
 	if (!tpci200)
@@ -798,10 +653,40 @@ static int tpci200_pciprobe(struct pci_dev *pdev,
 
 	tpci200->info = kzalloc(sizeof(struct tpci200_infos), GFP_KERNEL);
 	if (!tpci200->info) {
-		kfree(tpci200);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto out_err_info;
 	}
 
+	pci_dev_get(pdev);
+
+	/* Obtain a mapping of the carrier's PCI configuration registers */
+	ret = pci_request_region(pdev, TPCI200_CFG_MEM_BAR,
+				 KBUILD_MODNAME " Configuration Memory");
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to allocate PCI Configuration Memory");
+		ret = -EBUSY;
+		goto out_err_pci_request;
+	}
+	tpci200->info->cfg_regs = ioremap_nocache(
+			pci_resource_start(pdev, TPCI200_CFG_MEM_BAR),
+			pci_resource_len(pdev, TPCI200_CFG_MEM_BAR));
+	if (!tpci200->info->cfg_regs) {
+		dev_err(&pdev->dev, "Failed to map PCI Configuration Memory");
+		ret = -EFAULT;
+		goto out_err_ioremap;
+	}
+
+	/* Disable byte swapping for 16 bit IP module access. This will ensure
+	 * that the Industrypack big endian byte order is preserved by the
+	 * carrier. */
+	reg32 = ioread32(tpci200->info->cfg_regs + LAS1_DESC);
+	reg32 |= 1 << LAS_BIT_BIGENDIAN;
+	iowrite32(reg32, tpci200->info->cfg_regs + LAS1_DESC);
+
+	reg32 = ioread32(tpci200->info->cfg_regs + LAS2_DESC);
+	reg32 |= 1 << LAS_BIT_BIGENDIAN;
+	iowrite32(reg32, tpci200->info->cfg_regs + LAS2_DESC);
+
 	/* Save struct pci_dev pointer */
 	tpci200->info->pdev = pdev;
 	tpci200->info->id_table = (struct pci_device_id *)id;
@@ -809,10 +694,9 @@ static int tpci200_pciprobe(struct pci_dev *pdev,
 	/* register the device and initialize it */
 	ret = tpci200_install(tpci200);
 	if (ret) {
-		dev_err(&pdev->dev, "Error during tpci200 install !\n");
-		kfree(tpci200->info);
-		kfree(tpci200);
-		return -ENODEV;
+		dev_err(&pdev->dev, "error during tpci200 install\n");
+		ret = -ENODEV;
+		goto out_err_install;
 	}
 
 	/* Register the carrier in the industry pack bus driver */
@@ -822,48 +706,46 @@ static int tpci200_pciprobe(struct pci_dev *pdev,
 	if (!tpci200->info->ipack_bus) {
 		dev_err(&pdev->dev,
 			"error registering the carrier on ipack driver\n");
-		tpci200_uninstall(tpci200);
-		kfree(tpci200->info);
-		kfree(tpci200);
-		return -EFAULT;
+		ret = -EFAULT;
+		goto out_err_bus_register;
 	}
 
 	/* save the bus number given by ipack to logging purpose */
 	tpci200->number = tpci200->info->ipack_bus->bus_nr;
 	dev_set_drvdata(&pdev->dev, tpci200);
-	/* add the registered device in an internal linked list */
-	list_add_tail(&tpci200->list, &tpci200_list);
 
-	/*
-	 * Give the same IRQ number as the slot number.
-	 * The TPCI200 has assigned his own two IRQ by PCI bus driver
-	 */
 	for (i = 0; i < TPCI200_NB_SLOT; i++)
-		tpci200->slots[i].dev =
-			ipack_device_register(tpci200->info->ipack_bus, i, i);
+		ipack_device_register(tpci200->info->ipack_bus, i);
+	return 0;
+
+out_err_bus_register:
+	tpci200_uninstall(tpci200);
+out_err_install:
+	iounmap(tpci200->info->cfg_regs);
+out_err_ioremap:
+	pci_release_region(pdev, TPCI200_CFG_MEM_BAR);
+out_err_pci_request:
+	pci_dev_put(pdev);
+	kfree(tpci200->info);
+out_err_info:
+	kfree(tpci200);
 	return ret;
 }
 
 static void __tpci200_pci_remove(struct tpci200_board *tpci200)
 {
-	tpci200_uninstall(tpci200);
-	list_del(&tpci200->list);
 	ipack_bus_unregister(tpci200->info->ipack_bus);
+	tpci200_uninstall(tpci200);
+
 	kfree(tpci200->info);
 	kfree(tpci200);
 }
 
 static void __devexit tpci200_pci_remove(struct pci_dev *dev)
 {
-	struct tpci200_board *tpci200, *next;
+	struct tpci200_board *tpci200 = pci_get_drvdata(dev);
 
-	/* Search the registered device to uninstall it */
-	list_for_each_entry_safe(tpci200, next, &tpci200_list, list) {
-		if (tpci200->info->pdev == dev) {
-			__tpci200_pci_remove(tpci200);
-			break;
-		}
-	}
+	__tpci200_pci_remove(tpci200);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(tpci200_idtable) = {
@@ -877,7 +759,7 @@ MODULE_DEVICE_TABLE(pci, tpci200_idtable);
 static struct pci_driver tpci200_pci_drv = {
 	.name = "tpci200",
 	.id_table = tpci200_idtable,
-	.probe = tpci200_pciprobe,
+	.probe = tpci200_pci_probe,
 	.remove = __devexit_p(tpci200_pci_remove),
 };
 
@@ -888,11 +770,6 @@ static int __init tpci200_drvr_init_module(void)
 
 static void __exit tpci200_drvr_exit_module(void)
 {
-	struct tpci200_board *tpci200, *next;
-
-	list_for_each_entry_safe(tpci200, next, &tpci200_list, list)
-		__tpci200_pci_remove(tpci200);
-
 	pci_unregister_driver(&tpci200_pci_drv);
 }
 
diff --git a/drivers/staging/ipack/bridges/tpci200.h b/drivers/staging/ipack/bridges/tpci200.h
index d04510a89be..235d1fe4f48 100644
--- a/drivers/staging/ipack/bridges/tpci200.h
+++ b/drivers/staging/ipack/bridges/tpci200.h
@@ -17,7 +17,6 @@
 #include <linux/limits.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>
-#include <linux/interrupt.h>
 #include <linux/swab.h>
 #include <linux/io.h>
 
@@ -31,18 +30,21 @@
 #define TPCI200_SUBVENDOR_ID          0x1498
 #define TPCI200_SUBDEVICE_ID          0x300A
 
+#define TPCI200_CFG_MEM_BAR           0
 #define TPCI200_IP_INTERFACE_BAR      2
 #define TPCI200_IO_ID_INT_SPACES_BAR  3
 #define TPCI200_MEM16_SPACE_BAR       4
 #define TPCI200_MEM8_SPACE_BAR        5
 
-#define TPCI200_REVISION_REG          0x00
-#define TPCI200_CONTROL_A_REG         0x02
-#define TPCI200_CONTROL_B_REG         0x04
-#define TPCI200_CONTROL_C_REG         0x06
-#define TPCI200_CONTROL_D_REG         0x08
-#define TPCI200_RESET_REG             0x0A
-#define TPCI200_STATUS_REG            0x0C
+struct tpci200_regs {
+	__le16	revision;
+	/* writes to control should occur with the mutex held to protect
+	 * read-modify-write operations */
+	__le16  control[4];
+	__le16	reset;
+	__le16	status;
+	u8	reserved[242];
+} __packed;
 
 #define TPCI200_IFACE_SIZE            0x100
 
@@ -62,6 +64,7 @@
 #define TPCI200_MEM16_GAP             0x00800000
 #define TPCI200_MEM16_SIZE            0x00800000
 
+/* control field in tpci200_regs */
 #define TPCI200_INT0_EN               0x0040
 #define TPCI200_INT1_EN               0x0080
 #define TPCI200_INT0_EDGE             0x0010
@@ -71,11 +74,13 @@
 #define TPCI200_RECOVER_EN            0x0002
 #define TPCI200_CLK32                 0x0001
 
+/* reset field in tpci200_regs */
 #define TPCI200_A_RESET               0x0001
 #define TPCI200_B_RESET               0x0002
 #define TPCI200_C_RESET               0x0004
 #define TPCI200_D_RESET               0x0008
 
+/* status field in tpci200_regs */
 #define TPCI200_A_TIMEOUT             0x1000
 #define TPCI200_B_TIMEOUT             0x2000
 #define TPCI200_C_TIMEOUT             0x4000
@@ -97,6 +102,13 @@
 
 #define TPCI200_SLOT_INT_MASK         0x00FF
 
+/* PCI Configuration registers. The PCI bridge is a PLX Technology PCI9030. */
+#define LAS1_DESC		      0x2C
+#define LAS2_DESC		      0x30
+
+/* Bits in the LAS?_DESC registers */
+#define LAS_BIT_BIGENDIAN	      24
+
 #define VME_IOID_SPACE  "IOID"
 #define VME_MEM_SPACE  "MEM"
 
@@ -108,8 +120,9 @@
  *
  */
 struct slot_irq {
+	struct ipack_device *holder;
 	int		vector;
-	int		(*handler)(void *);
+	irqreturn_t	(*handler)(void *);
 	void		*arg;
 };
 
@@ -119,14 +132,15 @@ struct slot_irq {
  * @irq		Slot IRQ infos
  * @io_phys	IO physical base address register of the slot
  * @id_phys	ID physical base address register of the slot
+ * @int_phys	INT physical base address register of the slot
  * @mem_phys	MEM physical base address register of the slot
  *
  */
 struct tpci200_slot {
-	struct ipack_device	*dev;
 	struct slot_irq		*irq;
 	struct ipack_addr_space io_phys;
 	struct ipack_addr_space id_phys;
+	struct ipack_addr_space int_phys;
 	struct ipack_addr_space mem_phys;
 };
 
@@ -141,15 +155,16 @@ struct tpci200_slot {
 struct tpci200_infos {
 	struct pci_dev			*pdev;
 	struct pci_device_id		*id_table;
-	void __iomem			*interface_regs;
+	struct tpci200_regs __iomem	*interface_regs;
 	void __iomem			*ioidint_space;
 	void __iomem			*mem8_space;
+	void __iomem			*cfg_regs;
 	struct ipack_bus_device		*ipack_bus;
 };
 struct tpci200_board {
-	struct list_head	list;
 	unsigned int		number;
 	struct mutex		mutex;
+	spinlock_t		regs_lock;
 	struct tpci200_slot	*slots;
 	struct tpci200_infos	*info;
 };
diff --git a/drivers/staging/ipack/devices/ipoctal.c b/drivers/staging/ipack/devices/ipoctal.c
index fd0e30132ca..d751edfda83 100644
--- a/drivers/staging/ipack/devices/ipoctal.c
+++ b/drivers/staging/ipack/devices/ipoctal.c
@@ -20,127 +20,68 @@
 #include <linux/tty_flip.h>
 #include <linux/slab.h>
 #include <linux/atomic.h>
+#include <linux/io.h>
 #include "../ipack.h"
 #include "ipoctal.h"
 #include "scc2698.h"
 
-#define IP_OCTAL_MANUFACTURER_ID    0xF0
-#define IP_OCTAL_232_ID             0x22
-#define IP_OCTAL_422_ID             0x2A
-#define IP_OCTAL_485_ID             0x48
-
 #define IP_OCTAL_ID_SPACE_VECTOR    0x41
 #define IP_OCTAL_NB_BLOCKS          4
 
-static struct ipack_driver driver;
 static const struct tty_operations ipoctal_fops;
 
+struct ipoctal_channel {
+	struct ipoctal_stats		stats;
+	unsigned int			nb_bytes;
+	wait_queue_head_t		queue;
+	spinlock_t			lock;
+	unsigned int			pointer_read;
+	unsigned int			pointer_write;
+	atomic_t			open;
+	struct tty_port			tty_port;
+	union scc2698_channel __iomem	*regs;
+	union scc2698_block __iomem	*block_regs;
+	unsigned int			board_id;
+	unsigned char			*board_write;
+	u8				isr_rx_rdy_mask;
+	u8				isr_tx_rdy_mask;
+};
+
 struct ipoctal {
-	struct list_head		list;
 	struct ipack_device		*dev;
 	unsigned int			board_id;
-	struct scc2698_channel		*chan_regs;
-	struct scc2698_block		*block_regs;
-	struct ipoctal_stats		chan_stats[NR_CHANNELS];
-	unsigned int			nb_bytes[NR_CHANNELS];
-	unsigned int			count_wr[NR_CHANNELS];
-	wait_queue_head_t		queue[NR_CHANNELS];
-	spinlock_t			lock[NR_CHANNELS];
-	unsigned int			pointer_read[NR_CHANNELS];
-	unsigned int			pointer_write[NR_CHANNELS];
-	atomic_t			open[NR_CHANNELS];
+	struct ipoctal_channel		channel[NR_CHANNELS];
 	unsigned char			write;
-	struct tty_port			tty_port[NR_CHANNELS];
 	struct tty_driver		*tty_drv;
 };
 
-/* Linked list to save the registered devices */
-static LIST_HEAD(ipoctal_list);
-
-static inline void ipoctal_write_io_reg(struct ipoctal *ipoctal,
-					unsigned char *dest,
-					unsigned char value)
-{
-	unsigned long offset;
-
-	offset = ((void __iomem *) dest) - ipoctal->dev->io_space.address;
-	ipoctal->dev->bus->ops->write8(ipoctal->dev, IPACK_IO_SPACE, offset,
-				       value);
-}
-
-static inline void ipoctal_write_cr_cmd(struct ipoctal *ipoctal,
-					unsigned char *dest,
-					unsigned char value)
-{
-	ipoctal_write_io_reg(ipoctal, dest, value);
-}
-
-static inline unsigned char ipoctal_read_io_reg(struct ipoctal *ipoctal,
-						unsigned char *src)
-{
-	unsigned long offset;
-	unsigned char value;
-
-	offset = ((void __iomem *) src) - ipoctal->dev->io_space.address;
-	ipoctal->dev->bus->ops->read8(ipoctal->dev, IPACK_IO_SPACE, offset,
-				      &value);
-	return value;
-}
-
-static struct ipoctal *ipoctal_find_board(struct tty_struct *tty)
-{
-	struct ipoctal *p;
-
-	list_for_each_entry(p, &ipoctal_list, list) {
-		if (tty->driver->major == p->tty_drv->major)
-			return p;
-	}
-
-	return NULL;
-}
-
 static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty)
 {
-	struct ipoctal *ipoctal;
-	int channel = tty->index;
+	struct ipoctal_channel *channel;
 
-	ipoctal = ipoctal_find_board(tty);
+	channel = dev_get_drvdata(tty->dev);
 
-	if (ipoctal == NULL) {
-		dev_err(tty->dev, "Device not found. Major %d\n",
-			tty->driver->major);
-		return -ENODEV;
-	}
-
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_ENABLE_RX);
+	iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
 	return 0;
 }
 
 static int ipoctal_open(struct tty_struct *tty, struct file *file)
 {
-	int channel = tty->index;
 	int res;
-	struct ipoctal *ipoctal;
+	struct ipoctal_channel *channel;
 
-	ipoctal = ipoctal_find_board(tty);
-
-	if (ipoctal == NULL) {
-		dev_err(tty->dev, "Device not found. Major %d\n",
-			tty->driver->major);
-		return -ENODEV;
-	}
+	channel = dev_get_drvdata(tty->dev);
 
-	if (atomic_read(&ipoctal->open[channel]))
+	if (atomic_read(&channel->open))
 		return -EBUSY;
 
-	tty->driver_data = ipoctal;
+	tty->driver_data = channel;
 
-	res = tty_port_open(&ipoctal->tty_port[channel], tty, file);
+	res = tty_port_open(&channel->tty_port, tty, file);
 	if (res)
 		return res;
 
-	atomic_inc(&ipoctal->open[channel]);
+	atomic_inc(&channel->open);
 	return 0;
 }
 
@@ -154,175 +95,166 @@ static void ipoctal_reset_stats(struct ipoctal_stats *stats)
 	stats->parity_err = 0;
 }
 
-static void ipoctal_free_channel(struct tty_struct *tty)
+static void ipoctal_free_channel(struct ipoctal_channel *channel)
 {
-	int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
-
-	if (ipoctal == NULL)
-		return;
-
-	ipoctal_reset_stats(&ipoctal->chan_stats[channel]);
-	ipoctal->pointer_read[channel] = 0;
-	ipoctal->pointer_write[channel] = 0;
-	ipoctal->nb_bytes[channel] = 0;
+	ipoctal_reset_stats(&channel->stats);
+	channel->pointer_read = 0;
+	channel->pointer_write = 0;
+	channel->nb_bytes = 0;
 }
 
 static void ipoctal_close(struct tty_struct *tty, struct file *filp)
 {
-	int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
+	struct ipoctal_channel *channel = tty->driver_data;
 
-	tty_port_close(&ipoctal->tty_port[channel], tty, filp);
+	tty_port_close(&channel->tty_port, tty, filp);
 
-	if (atomic_dec_and_test(&ipoctal->open[channel]))
-		ipoctal_free_channel(tty);
+	if (atomic_dec_and_test(&channel->open))
+		ipoctal_free_channel(channel);
 }
 
 static int ipoctal_get_icount(struct tty_struct *tty,
 			      struct serial_icounter_struct *icount)
 {
-	struct ipoctal *ipoctal = tty->driver_data;
-	int channel = tty->index;
+	struct ipoctal_channel *channel = tty->driver_data;
 
 	icount->cts = 0;
 	icount->dsr = 0;
 	icount->rng = 0;
 	icount->dcd = 0;
-	icount->rx = ipoctal->chan_stats[channel].rx;
-	icount->tx = ipoctal->chan_stats[channel].tx;
-	icount->frame = ipoctal->chan_stats[channel].framing_err;
-	icount->parity = ipoctal->chan_stats[channel].parity_err;
-	icount->brk = ipoctal->chan_stats[channel].rcv_break;
+	icount->rx = channel->stats.rx;
+	icount->tx = channel->stats.tx;
+	icount->frame = channel->stats.framing_err;
+	icount->parity = channel->stats.parity_err;
+	icount->brk = channel->stats.rcv_break;
 	return 0;
 }
 
-static int ipoctal_irq_handler(void *arg)
+static void ipoctal_irq_rx(struct ipoctal_channel *channel,
+			   struct tty_struct *tty, u8 sr)
 {
-	unsigned int channel;
-	unsigned int block;
-	unsigned char isr;
-	unsigned char sr;
-	unsigned char isr_tx_rdy, isr_rx_rdy;
 	unsigned char value;
-	unsigned char flag;
-	struct tty_struct *tty;
-	struct ipoctal *ipoctal = (struct ipoctal *) arg;
-
-	/* Check all channels */
-	for (channel = 0; channel < NR_CHANNELS; channel++) {
-		/* If there is no client, skip the check */
-		if (!atomic_read(&ipoctal->open[channel]))
-			continue;
-
-		tty = tty_port_tty_get(&ipoctal->tty_port[channel]);
-		if (!tty)
-			continue;
-
-		/*
-		 * The HW is organized in pair of channels.
-		 * See which register we need to read from
-		 */
-		block = channel / 2;
-		isr = ipoctal_read_io_reg(ipoctal,
-					  &ipoctal->block_regs[block].u.r.isr);
-		sr = ipoctal_read_io_reg(ipoctal,
-					 &ipoctal->chan_regs[channel].u.r.sr);
-
-		if ((channel % 2) == 1) {
-			isr_tx_rdy = isr & ISR_TxRDY_B;
-			isr_rx_rdy = isr & ISR_RxRDY_FFULL_B;
-		} else {
-			isr_tx_rdy = isr & ISR_TxRDY_A;
-			isr_rx_rdy = isr & ISR_RxRDY_FFULL_A;
+	unsigned char flag = TTY_NORMAL;
+	u8 isr;
+
+	do {
+		value = ioread8(&channel->regs->r.rhr);
+		/* Error: count statistics */
+		if (sr & SR_ERROR) {
+			iowrite8(CR_CMD_RESET_ERR_STATUS, &channel->regs->w.cr);
+
+			if (sr & SR_OVERRUN_ERROR) {
+				channel->stats.overrun_err++;
+				/* Overrun doesn't affect the current character*/
+				tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+			}
+			if (sr & SR_PARITY_ERROR) {
+				channel->stats.parity_err++;
+				flag = TTY_PARITY;
+			}
+			if (sr & SR_FRAMING_ERROR) {
+				channel->stats.framing_err++;
+				flag = TTY_FRAME;
+			}
+			if (sr & SR_RECEIVED_BREAK) {
+				iowrite8(CR_CMD_RESET_BREAK_CHANGE, &channel->regs->w.cr);
+				channel->stats.rcv_break++;
+				flag = TTY_BREAK;
+			}
 		}
+		tty_insert_flip_char(tty, value, flag);
 
-		/* In case of RS-485, change from TX to RX when finishing TX.
-		 * Half-duplex.
+		/* Check if there are more characters in RX FIFO
+		 * If there are more, the isr register for this channel
+		 * has enabled the RxRDY|FFULL bit.
 		 */
-		if ((ipoctal->board_id == IP_OCTAL_485_ID) &&
-		    (sr & SR_TX_EMPTY) &&
-		    (ipoctal->nb_bytes[channel] == 0)) {
-			ipoctal_write_io_reg(ipoctal,
-					     &ipoctal->chan_regs[channel].u.w.cr,
-					     CR_DISABLE_TX);
-			ipoctal_write_cr_cmd(ipoctal,
-					     &ipoctal->chan_regs[channel].u.w.cr,
-					     CR_CMD_NEGATE_RTSN);
-			ipoctal_write_io_reg(ipoctal,
-					     &ipoctal->chan_regs[channel].u.w.cr,
-					     CR_ENABLE_RX);
-			ipoctal->write = 1;
-			wake_up_interruptible(&ipoctal->queue[channel]);
-		}
+		isr = ioread8(&channel->block_regs->r.isr);
+		sr = ioread8(&channel->regs->r.sr);
+	} while (isr & channel->isr_rx_rdy_mask);
 
-		/* RX data */
-		if (isr_rx_rdy && (sr & SR_RX_READY)) {
-			value = ipoctal_read_io_reg(ipoctal,
-						    &ipoctal->chan_regs[channel].u.r.rhr);
-			flag = TTY_NORMAL;
-
-			/* Error: count statistics */
-			if (sr & SR_ERROR) {
-				ipoctal_write_cr_cmd(ipoctal,
-						     &ipoctal->chan_regs[channel].u.w.cr,
-						     CR_CMD_RESET_ERR_STATUS);
-
-				if (sr & SR_OVERRUN_ERROR) {
-					ipoctal->chan_stats[channel].overrun_err++;
-					/* Overrun doesn't affect the current character*/
-					tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-				}
-				if (sr & SR_PARITY_ERROR) {
-					ipoctal->chan_stats[channel].parity_err++;
-					flag = TTY_PARITY;
-				}
-				if (sr & SR_FRAMING_ERROR) {
-					ipoctal->chan_stats[channel].framing_err++;
-					flag = TTY_FRAME;
-				}
-				if (sr & SR_RECEIVED_BREAK) {
-					ipoctal->chan_stats[channel].rcv_break++;
-					flag = TTY_BREAK;
-				}
-			}
+	tty_flip_buffer_push(tty);
+}
 
-			tty_insert_flip_char(tty, value, flag);
-		}
+static void ipoctal_irq_tx(struct ipoctal_channel *channel)
+{
+	unsigned char value;
+	unsigned int *pointer_write = &channel->pointer_write;
 
-		/* TX of each character */
-		if (isr_tx_rdy && (sr & SR_TX_READY)) {
-			unsigned int *pointer_write =
-				&ipoctal->pointer_write[channel];
+	if (channel->nb_bytes <= 0) {
+		channel->nb_bytes = 0;
+		return;
+	}
 
-			if (ipoctal->nb_bytes[channel] <= 0) {
-				ipoctal->nb_bytes[channel] = 0;
-				continue;
-			}
+	value = channel->tty_port.xmit_buf[*pointer_write];
+	iowrite8(value, &channel->regs->w.thr);
+	channel->stats.tx++;
+	(*pointer_write)++;
+	*pointer_write = *pointer_write % PAGE_SIZE;
+	channel->nb_bytes--;
 
-			value = ipoctal->tty_port[channel].xmit_buf[*pointer_write];
-			ipoctal_write_io_reg(ipoctal,
-					     &ipoctal->chan_regs[channel].u.w.thr,
-					     value);
-			ipoctal->chan_stats[channel].tx++;
-			ipoctal->count_wr[channel]++;
-			(*pointer_write)++;
-			*pointer_write = *pointer_write % PAGE_SIZE;
-			ipoctal->nb_bytes[channel]--;
-
-			if ((ipoctal->nb_bytes[channel] == 0) &&
-			    (waitqueue_active(&ipoctal->queue[channel]))) {
-
-				if (ipoctal->board_id != IP_OCTAL_485_ID) {
-					ipoctal->write = 1;
-					wake_up_interruptible(&ipoctal->queue[channel]);
-				}
-			}
+	if ((channel->nb_bytes == 0) &&
+	    (waitqueue_active(&channel->queue))) {
+
+		if (channel->board_id != IPACK1_DEVICE_ID_SBS_OCTAL_485) {
+			*channel->board_write = 1;
+			wake_up_interruptible(&channel->queue);
 		}
+	}
+}
 
-		tty_flip_buffer_push(tty);
-		tty_kref_put(tty);
+static void ipoctal_irq_channel(struct ipoctal_channel *channel)
+{
+	u8 isr, sr;
+	struct tty_struct *tty;
+
+	/* If there is no client, skip the check */
+	if (!atomic_read(&channel->open))
+		return;
+
+	tty = tty_port_tty_get(&channel->tty_port);
+	if (!tty)
+		return;
+	/* The HW is organized in pair of channels.  See which register we need
+	 * to read from */
+	isr = ioread8(&channel->block_regs->r.isr);
+	sr = ioread8(&channel->regs->r.sr);
+
+	/* In case of RS-485, change from TX to RX when finishing TX.
+	 * Half-duplex. */
+	if ((channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) &&
+	    (sr & SR_TX_EMPTY) && (channel->nb_bytes == 0)) {
+		iowrite8(CR_DISABLE_TX, &channel->regs->w.cr);
+		iowrite8(CR_CMD_NEGATE_RTSN, &channel->regs->w.cr);
+		iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
+		*channel->board_write = 1;
+		wake_up_interruptible(&channel->queue);
 	}
+
+	/* RX data */
+	if ((isr & channel->isr_rx_rdy_mask) && (sr & SR_RX_READY))
+		ipoctal_irq_rx(channel, tty, sr);
+
+	/* TX of each character */
+	if ((isr & channel->isr_tx_rdy_mask) && (sr & SR_TX_READY))
+		ipoctal_irq_tx(channel);
+
+	tty_flip_buffer_push(tty);
+	tty_kref_put(tty);
+}
+
+static irqreturn_t ipoctal_irq_handler(void *arg)
+{
+	unsigned int i;
+	struct ipoctal *ipoctal = (struct ipoctal *) arg;
+
+	/* Check all channels */
+	for (i = 0; i < NR_CHANNELS; i++)
+		ipoctal_irq_channel(&ipoctal->channel[i]);
+
+	/* Clear the IPack device interrupt */
+	readw(ipoctal->dev->int_space.address + ACK_INT_REQ0);
+	readw(ipoctal->dev->int_space.address + ACK_INT_REQ1);
+
 	return IRQ_HANDLED;
 }
 
@@ -331,18 +263,15 @@ static int ipoctal_check_model(struct ipack_device *dev, unsigned char *id)
 	unsigned char manufacturerID;
 	unsigned char board_id;
 
-	dev->bus->ops->read8(dev, IPACK_ID_SPACE,
-			IPACK_IDPROM_OFFSET_MANUFACTURER_ID, &manufacturerID);
-	if (manufacturerID != IP_OCTAL_MANUFACTURER_ID)
-		return -ENODEV;
-
-	dev->bus->ops->read8(dev, IPACK_ID_SPACE,
-			IPACK_IDPROM_OFFSET_MODEL, (unsigned char *)&board_id);
 
+	manufacturerID = ioread8(dev->id_space.address + IPACK_IDPROM_OFFSET_MANUFACTURER_ID);
+	if (manufacturerID != IPACK1_VENDOR_ID_SBS)
+		return -ENODEV;
+	board_id = ioread8(dev->id_space.address + IPACK_IDPROM_OFFSET_MODEL);
 	switch (board_id) {
-	case IP_OCTAL_232_ID:
-	case IP_OCTAL_422_ID:
-	case IP_OCTAL_485_ID:
+	case IPACK1_DEVICE_ID_SBS_OCTAL_232:
+	case IPACK1_DEVICE_ID_SBS_OCTAL_422:
+	case IPACK1_DEVICE_ID_SBS_OCTAL_485:
 		*id = board_id;
 		break;
 	default:
@@ -358,13 +287,16 @@ static const struct tty_port_operations ipoctal_tty_port_ops = {
 };
 
 static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
-			     unsigned int slot, unsigned int vector)
+			     unsigned int slot)
 {
 	int res = 0;
 	int i;
 	struct tty_driver *tty;
 	char name[20];
 	unsigned char board_id;
+	struct ipoctal_channel *channel;
+	union scc2698_channel __iomem *chan_regs;
+	union scc2698_block __iomem *block_regs;
 
 	res = ipoctal->dev->bus->ops->map_space(ipoctal->dev, 0,
 						IPACK_ID_SPACE);
@@ -392,54 +324,61 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 		goto out_unregister_id_space;
 	}
 
+	res = ipoctal->dev->bus->ops->map_space(ipoctal->dev, 0,
+						IPACK_INT_SPACE);
+	if (res) {
+		dev_err(&ipoctal->dev->dev,
+			"Unable to map slot [%d:%d] INT space!\n",
+			bus_nr, slot);
+		goto out_unregister_io_space;
+	}
+
 	res = ipoctal->dev->bus->ops->map_space(ipoctal->dev,
 					   0x8000, IPACK_MEM_SPACE);
 	if (res) {
 		dev_err(&ipoctal->dev->dev,
 			"Unable to map slot [%d:%d] MEM space!\n",
 			bus_nr, slot);
-		goto out_unregister_io_space;
+		goto out_unregister_int_space;
 	}
 
 	/* Save the virtual address to access the registers easily */
-	ipoctal->chan_regs =
-		(struct scc2698_channel *) ipoctal->dev->io_space.address;
-	ipoctal->block_regs =
-		(struct scc2698_block *) ipoctal->dev->io_space.address;
+	chan_regs =
+		(union scc2698_channel __iomem *) ipoctal->dev->io_space.address;
+	block_regs =
+		(union scc2698_block __iomem *) ipoctal->dev->io_space.address;
 
 	/* Disable RX and TX before touching anything */
 	for (i = 0; i < NR_CHANNELS ; i++) {
-		ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
-				     CR_DISABLE_RX | CR_DISABLE_TX);
-		ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
-				     CR_CMD_RESET_RX);
-		ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
-				     CR_CMD_RESET_TX);
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->chan_regs[i].u.w.mr,
-				     MR1_CHRL_8_BITS | MR1_ERROR_CHAR |
-				     MR1_RxINT_RxRDY); /* mr1 */
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->chan_regs[i].u.w.mr,
-				     0); /* mr2 */
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->chan_regs[i].u.w.csr,
-				     TX_CLK_9600  | RX_CLK_9600);
+		struct ipoctal_channel *channel = &ipoctal->channel[i];
+		channel->regs = chan_regs + i;
+		channel->block_regs = block_regs + (i >> 1);
+		channel->board_write = &ipoctal->write;
+		channel->board_id = ipoctal->board_id;
+		if (i & 1) {
+			channel->isr_tx_rdy_mask = ISR_TxRDY_B;
+			channel->isr_rx_rdy_mask = ISR_RxRDY_FFULL_B;
+		} else {
+			channel->isr_tx_rdy_mask = ISR_TxRDY_A;
+			channel->isr_rx_rdy_mask = ISR_RxRDY_FFULL_A;
+		}
+
+		iowrite8(CR_DISABLE_RX | CR_DISABLE_TX, &channel->regs->w.cr);
+		iowrite8(CR_CMD_RESET_RX, &channel->regs->w.cr);
+		iowrite8(CR_CMD_RESET_TX, &channel->regs->w.cr);
+		iowrite8(MR1_CHRL_8_BITS | MR1_ERROR_CHAR | MR1_RxINT_RxRDY,
+			 &channel->regs->w.mr); /* mr1 */
+		iowrite8(0, &channel->regs->w.mr); /* mr2 */
+		iowrite8(TX_CLK_9600  | RX_CLK_9600, &channel->regs->w.csr);
 	}
 
 	for (i = 0; i < IP_OCTAL_NB_BLOCKS; i++) {
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->block_regs[i].u.w.acr,
-				     ACR_BRG_SET2);
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->block_regs[i].u.w.opcr,
-				     OPCR_MPP_OUTPUT | OPCR_MPOa_RTSN |
-				     OPCR_MPOb_RTSN);
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->block_regs[i].u.w.imr,
-				     IMR_TxRDY_A | IMR_RxRDY_FFULL_A |
-				     IMR_DELTA_BREAK_A | IMR_TxRDY_B |
-				     IMR_RxRDY_FFULL_B | IMR_DELTA_BREAK_B);
+		iowrite8(ACR_BRG_SET2, &block_regs[i].w.acr);
+		iowrite8(OPCR_MPP_OUTPUT | OPCR_MPOa_RTSN | OPCR_MPOb_RTSN,
+			 &block_regs[i].w.opcr);
+		iowrite8(IMR_TxRDY_A | IMR_RxRDY_FFULL_A | IMR_DELTA_BREAK_A |
+			 IMR_TxRDY_B | IMR_RxRDY_FFULL_B | IMR_DELTA_BREAK_B,
+			 &block_regs[i].w.imr);
 	}
 
 	/*
@@ -447,10 +386,10 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 	 * Depending of the carrier these addresses are accesible or not.
 	 * More info in the datasheet.
 	 */
-	ipoctal->dev->bus->ops->request_irq(ipoctal->dev, vector,
+	ipoctal->dev->bus->ops->request_irq(ipoctal->dev,
 				       ipoctal_irq_handler, ipoctal);
-	ipoctal->dev->bus->ops->write8(ipoctal->dev, IPACK_MEM_SPACE, 0,
-				       vector);
+	/* Dummy write */
+	iowrite8(1, ipoctal->dev->mem_space.address + 1);
 
 	/* Register the TTY device */
 
@@ -464,8 +403,8 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 
 	/* Fill struct tty_driver with ipoctal data */
 	tty->owner = THIS_MODULE;
-	tty->driver_name = "ipoctal";
-	sprintf(name, "ipoctal.%d.%d.", bus_nr, slot);
+	tty->driver_name = KBUILD_MODNAME;
+	sprintf(name, KBUILD_MODNAME ".%d.%d.", bus_nr, slot);
 	tty->name = name;
 	tty->major = 0;
 
@@ -490,32 +429,40 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 	ipoctal->tty_drv = tty;
 
 	for (i = 0; i < NR_CHANNELS; i++) {
-		tty_port_init(&ipoctal->tty_port[i]);
-		tty_port_alloc_xmit_buf(&ipoctal->tty_port[i]);
-		ipoctal->tty_port[i].ops = &ipoctal_tty_port_ops;
-
-		ipoctal_reset_stats(&ipoctal->chan_stats[i]);
-		ipoctal->nb_bytes[i] = 0;
-		init_waitqueue_head(&ipoctal->queue[i]);
-
-		spin_lock_init(&ipoctal->lock[i]);
-		ipoctal->pointer_read[i] = 0;
-		ipoctal->pointer_write[i] = 0;
-		ipoctal->nb_bytes[i] = 0;
-		tty_register_device(tty, i, NULL);
+		struct device *tty_dev;
+
+		channel = &ipoctal->channel[i];
+		tty_port_init(&channel->tty_port);
+		tty_port_alloc_xmit_buf(&channel->tty_port);
+		channel->tty_port.ops = &ipoctal_tty_port_ops;
+
+		ipoctal_reset_stats(&channel->stats);
+		channel->nb_bytes = 0;
+		init_waitqueue_head(&channel->queue);
+
+		spin_lock_init(&channel->lock);
+		channel->pointer_read = 0;
+		channel->pointer_write = 0;
+		tty_dev = tty_port_register_device(&channel->tty_port, tty, i, NULL);
+		if (IS_ERR(tty_dev)) {
+			dev_err(&ipoctal->dev->dev, "Failed to register tty device.\n");
+			continue;
+		}
+		dev_set_drvdata(tty_dev, channel);
 
 		/*
 		 * Enable again the RX. TX will be enabled when
 		 * there is something to send
 		 */
-		ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
-				     CR_ENABLE_RX);
+		iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
 	}
 
 	return 0;
 
 out_unregister_slot_unmap:
 	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_ID_SPACE);
+out_unregister_int_space:
+	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_INT_SPACE);
 out_unregister_io_space:
 	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_IO_SPACE);
 out_unregister_id_space:
@@ -523,23 +470,22 @@ out_unregister_id_space:
 	return res;
 }
 
-static inline int ipoctal_copy_write_buffer(struct ipoctal *ipoctal,
-					    unsigned int channel,
+static inline int ipoctal_copy_write_buffer(struct ipoctal_channel *channel,
 					    const unsigned char *buf,
 					    int count)
 {
 	unsigned long flags;
 	int i;
-	unsigned int *pointer_read = &ipoctal->pointer_read[channel];
+	unsigned int *pointer_read = &channel->pointer_read;
 
 	/* Copy the bytes from the user buffer to the internal one */
 	for (i = 0; i < count; i++) {
-		if (i <= (PAGE_SIZE - ipoctal->nb_bytes[channel])) {
-			spin_lock_irqsave(&ipoctal->lock[channel], flags);
-			ipoctal->tty_port[channel].xmit_buf[*pointer_read] = buf[i];
+		if (i <= (PAGE_SIZE - channel->nb_bytes)) {
+			spin_lock_irqsave(&channel->lock, flags);
+			channel->tty_port.xmit_buf[*pointer_read] = buf[i];
 			*pointer_read = (*pointer_read + 1) % PAGE_SIZE;
-			ipoctal->nb_bytes[channel]++;
-			spin_unlock_irqrestore(&ipoctal->lock[channel], flags);
+			channel->nb_bytes++;
+			spin_unlock_irqrestore(&channel->lock, flags);
 		} else {
 			break;
 		}
@@ -547,63 +493,44 @@ static inline int ipoctal_copy_write_buffer(struct ipoctal *ipoctal,
 	return i;
 }
 
-static int ipoctal_write(struct ipoctal *ipoctal, unsigned int channel,
-			 const unsigned char *buf, int count)
+static int ipoctal_write_tty(struct tty_struct *tty,
+			     const unsigned char *buf, int count)
 {
-	ipoctal->nb_bytes[channel] = 0;
-	ipoctal->count_wr[channel] = 0;
+	struct ipoctal_channel *channel = tty->driver_data;
+	unsigned int char_copied;
 
-	ipoctal_copy_write_buffer(ipoctal, channel, buf, count);
+	char_copied = ipoctal_copy_write_buffer(channel, buf, count);
 
 	/* As the IP-OCTAL 485 only supports half duplex, do it manually */
-	if (ipoctal->board_id == IP_OCTAL_485_ID) {
-		ipoctal_write_io_reg(ipoctal,
-				     &ipoctal->chan_regs[channel].u.w.cr,
-				     CR_DISABLE_RX);
-		ipoctal_write_cr_cmd(ipoctal,
-				     &ipoctal->chan_regs[channel].u.w.cr,
-				     CR_CMD_ASSERT_RTSN);
+	if (channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) {
+		iowrite8(CR_DISABLE_RX, &channel->regs->w.cr);
+		iowrite8(CR_CMD_ASSERT_RTSN, &channel->regs->w.cr);
 	}
 
 	/*
 	 * Send a packet and then disable TX to avoid failure after several send
 	 * operations
 	 */
-	ipoctal_write_io_reg(ipoctal,
-			     &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_ENABLE_TX);
-	wait_event_interruptible(ipoctal->queue[channel], ipoctal->write);
-	ipoctal_write_io_reg(ipoctal,
-			     &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_DISABLE_TX);
-
-	ipoctal->write = 0;
-	return ipoctal->count_wr[channel];
-}
-
-static int ipoctal_write_tty(struct tty_struct *tty,
-			     const unsigned char *buf, int count)
-{
-	unsigned int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
+	iowrite8(CR_ENABLE_TX, &channel->regs->w.cr);
+	wait_event_interruptible(channel->queue, *channel->board_write);
+	iowrite8(CR_DISABLE_TX, &channel->regs->w.cr);
 
-	return ipoctal_write(ipoctal, channel, buf, count);
+	*channel->board_write = 0;
+	return char_copied;
 }
 
 static int ipoctal_write_room(struct tty_struct *tty)
 {
-	int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
+	struct ipoctal_channel *channel = tty->driver_data;
 
-	return PAGE_SIZE - ipoctal->nb_bytes[channel];
+	return PAGE_SIZE - channel->nb_bytes;
 }
 
 static int ipoctal_chars_in_buffer(struct tty_struct *tty)
 {
-	int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
+	struct ipoctal_channel *channel = tty->driver_data;
 
-	return ipoctal->nb_bytes[channel];
+	return channel->nb_bytes;
 }
 
 static void ipoctal_set_termios(struct tty_struct *tty,
@@ -613,23 +540,17 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 	unsigned char mr1 = 0;
 	unsigned char mr2 = 0;
 	unsigned char csr = 0;
-	unsigned int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
+	struct ipoctal_channel *channel = tty->driver_data;
 	speed_t baud;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	/* Disable and reset everything before change the setup */
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_DISABLE_RX | CR_DISABLE_TX);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_RX);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_TX);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_ERR_STATUS);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_MR);
+	iowrite8(CR_DISABLE_RX | CR_DISABLE_TX, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_RX, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_TX, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_ERR_STATUS, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_MR, &channel->regs->w.cr);
 
 	/* Set Bits per chars */
 	switch (cflag & CSIZE) {
@@ -643,7 +564,7 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 	default:
 		mr1 |= MR1_CHRL_8_BITS;
 		/* By default, select CS8 */
-		tty->termios->c_cflag = (cflag & ~CSIZE) | CS8;
+		tty->termios.c_cflag = (cflag & ~CSIZE) | CS8;
 		break;
 	}
 
@@ -657,7 +578,7 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 		mr1 |= MR1_PARITY_OFF;
 
 	/* Mark or space parity is not supported */
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 
 	/* Set stop bits */
 	if (cflag & CSTOPB)
@@ -666,8 +587,8 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 		mr2 |= MR2_STOP_BITS_LENGTH_1;
 
 	/* Set the flow control */
-	switch (ipoctal->board_id) {
-	case IP_OCTAL_232_ID:
+	switch (channel->board_id) {
+	case IPACK1_DEVICE_ID_SBS_OCTAL_232:
 		if (cflag & CRTSCTS) {
 			mr1 |= MR1_RxRTS_CONTROL_ON;
 			mr2 |= MR2_TxRTS_CONTROL_OFF | MR2_CTS_ENABLE_TX_ON;
@@ -676,11 +597,11 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 			mr2 |= MR2_TxRTS_CONTROL_OFF | MR2_CTS_ENABLE_TX_OFF;
 		}
 		break;
-	case IP_OCTAL_422_ID:
+	case IPACK1_DEVICE_ID_SBS_OCTAL_422:
 		mr1 |= MR1_RxRTS_CONTROL_OFF;
 		mr2 |= MR2_TxRTS_CONTROL_OFF | MR2_CTS_ENABLE_TX_OFF;
 		break;
-	case IP_OCTAL_485_ID:
+	case IPACK1_DEVICE_ID_SBS_OCTAL_485:
 		mr1 |= MR1_RxRTS_CONTROL_OFF;
 		mr2 |= MR2_TxRTS_CONTROL_ON | MR2_CTS_ENABLE_TX_OFF;
 		break;
@@ -690,10 +611,10 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 	}
 
 	baud = tty_get_baud_rate(tty);
-	tty_termios_encode_baud_rate(tty->termios, baud, baud);
+	tty_termios_encode_baud_rate(&tty->termios, baud, baud);
 
 	/* Set baud rate */
-	switch (tty->termios->c_ospeed) {
+	switch (baud) {
 	case 75:
 		csr |= TX_CLK_75 | RX_CLK_75;
 		break;
@@ -734,7 +655,7 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 	default:
 		csr |= TX_CLK_38400 | RX_CLK_38400;
 		/* In case of default, we establish 38400 bps */
-		tty_termios_encode_baud_rate(tty->termios, 38400, 38400);
+		tty_termios_encode_baud_rate(&tty->termios, 38400, 38400);
 		break;
 	}
 
@@ -742,45 +663,38 @@ static void ipoctal_set_termios(struct tty_struct *tty,
 	mr1 |= MR1_RxINT_RxRDY;
 
 	/* Write the control registers */
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.mr, mr1);
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.mr, mr2);
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.csr, csr);
+	iowrite8(mr1, &channel->regs->w.mr);
+	iowrite8(mr2, &channel->regs->w.mr);
+	iowrite8(csr, &channel->regs->w.csr);
 
 	/* Enable again the RX */
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_ENABLE_RX);
+	iowrite8(CR_ENABLE_RX, &channel->regs->w.cr);
 }
 
 static void ipoctal_hangup(struct tty_struct *tty)
 {
 	unsigned long flags;
-	int channel = tty->index;
-	struct ipoctal *ipoctal = tty->driver_data;
+	struct ipoctal_channel *channel = tty->driver_data;
 
-	if (ipoctal == NULL)
+	if (channel == NULL)
 		return;
 
-	spin_lock_irqsave(&ipoctal->lock[channel], flags);
-	ipoctal->nb_bytes[channel] = 0;
-	ipoctal->pointer_read[channel] = 0;
-	ipoctal->pointer_write[channel] = 0;
-	spin_unlock_irqrestore(&ipoctal->lock[channel], flags);
-
-	tty_port_hangup(&ipoctal->tty_port[channel]);
-
-	ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_DISABLE_RX | CR_DISABLE_TX);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_RX);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_TX);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_ERR_STATUS);
-	ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[channel].u.w.cr,
-			     CR_CMD_RESET_MR);
-
-	clear_bit(ASYNCB_INITIALIZED, &ipoctal->tty_port[channel].flags);
-	wake_up_interruptible(&ipoctal->tty_port[channel].open_wait);
+	spin_lock_irqsave(&channel->lock, flags);
+	channel->nb_bytes = 0;
+	channel->pointer_read = 0;
+	channel->pointer_write = 0;
+	spin_unlock_irqrestore(&channel->lock, flags);
+
+	tty_port_hangup(&channel->tty_port);
+
+	iowrite8(CR_DISABLE_RX | CR_DISABLE_TX, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_RX, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_TX, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_ERR_STATUS, &channel->regs->w.cr);
+	iowrite8(CR_CMD_RESET_MR, &channel->regs->w.cr);
+
+	clear_bit(ASYNCB_INITIALIZED, &channel->tty_port.flags);
+	wake_up_interruptible(&channel->tty_port.open_wait);
 }
 
 static const struct tty_operations ipoctal_fops = {
@@ -795,27 +709,6 @@ static const struct tty_operations ipoctal_fops = {
 	.hangup =		ipoctal_hangup,
 };
 
-static int ipoctal_match(struct ipack_device *dev)
-{
-	int res;
-	unsigned char board_id;
-
-	if ((!dev->bus->ops) || (!dev->bus->ops->map_space) ||
-	    (!dev->bus->ops->unmap_space))
-		return 0;
-
-	res = dev->bus->ops->map_space(dev, 0, IPACK_ID_SPACE);
-	if (res)
-		return 0;
-
-	res = ipoctal_check_model(dev, &board_id);
-	dev->bus->ops->unmap_space(dev, IPACK_ID_SPACE);
-	if (!res)
-		return 1;
-
-	return 0;
-}
-
 static int ipoctal_probe(struct ipack_device *dev)
 {
 	int res;
@@ -826,11 +719,11 @@ static int ipoctal_probe(struct ipack_device *dev)
 		return -ENOMEM;
 
 	ipoctal->dev = dev;
-	res = ipoctal_inst_slot(ipoctal, dev->bus_nr, dev->slot, dev->irq);
+	res = ipoctal_inst_slot(ipoctal, dev->bus_nr, dev->slot);
 	if (res)
 		goto out_uninst;
 
-	list_add_tail(&ipoctal->list, &ipoctal_list);
+	dev_set_drvdata(&dev->dev, ipoctal);
 	return 0;
 
 out_uninst:
@@ -842,46 +735,57 @@ static void __ipoctal_remove(struct ipoctal *ipoctal)
 {
 	int i;
 
+	ipoctal->dev->bus->ops->free_irq(ipoctal->dev);
+
 	for (i = 0; i < NR_CHANNELS; i++) {
+		struct ipoctal_channel *channel = &ipoctal->channel[i];
 		tty_unregister_device(ipoctal->tty_drv, i);
-		tty_port_free_xmit_buf(&ipoctal->tty_port[i]);
+		tty_port_free_xmit_buf(&channel->tty_port);
 	}
 
 	tty_unregister_driver(ipoctal->tty_drv);
 	put_tty_driver(ipoctal->tty_drv);
-	list_del(&ipoctal->list);
+	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_MEM_SPACE);
+	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_INT_SPACE);
+	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_IO_SPACE);
+	ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_ID_SPACE);
 	kfree(ipoctal);
 }
 
-static void ipoctal_remove(struct ipack_device *device)
+static void ipoctal_remove(struct ipack_device *idev)
 {
-	struct ipoctal *ipoctal, *next;
-
-	list_for_each_entry_safe(ipoctal, next, &ipoctal_list, list) {
-		if (ipoctal->dev == device)
-			__ipoctal_remove(ipoctal);
-	}
+	__ipoctal_remove(dev_get_drvdata(&idev->dev));
 }
 
-static struct ipack_driver_ops ipoctal_drv_ops = {
-	.match = ipoctal_match,
-	.probe = ipoctal_probe,
+static DEFINE_IPACK_DEVICE_TABLE(ipoctal_ids) = {
+	{ IPACK_DEVICE(IPACK_ID_VERSION_1, IPACK1_VENDOR_ID_SBS,
+			IPACK1_DEVICE_ID_SBS_OCTAL_232) },
+	{ IPACK_DEVICE(IPACK_ID_VERSION_1, IPACK1_VENDOR_ID_SBS,
+			IPACK1_DEVICE_ID_SBS_OCTAL_422) },
+	{ IPACK_DEVICE(IPACK_ID_VERSION_1, IPACK1_VENDOR_ID_SBS,
+			IPACK1_DEVICE_ID_SBS_OCTAL_485) },
+	{ 0, },
+};
+
+MODULE_DEVICE_TABLE(ipack, ipoctal_ids);
+
+static const struct ipack_driver_ops ipoctal_drv_ops = {
+	.probe  = ipoctal_probe,
 	.remove = ipoctal_remove,
 };
 
+static struct ipack_driver driver = {
+	.ops      = &ipoctal_drv_ops,
+	.id_table = ipoctal_ids,
+};
+
 static int __init ipoctal_init(void)
 {
-	driver.ops = &ipoctal_drv_ops;
 	return ipack_driver_register(&driver, THIS_MODULE, KBUILD_MODNAME);
 }
 
 static void __exit ipoctal_exit(void)
 {
-	struct ipoctal *p, *next;
-
-	list_for_each_entry_safe(p, next, &ipoctal_list, list)
-		p->dev->bus->ops->remove_device(p->dev);
-
 	ipack_driver_unregister(&driver);
 }
 
diff --git a/drivers/staging/ipack/devices/scc2698.h b/drivers/staging/ipack/devices/scc2698.h
index 47f6269985f..96e8d8c30e1 100644
--- a/drivers/staging/ipack/devices/scc2698.h
+++ b/drivers/staging/ipack/devices/scc2698.h
@@ -15,78 +15,74 @@
 #define SCC2698_H_
 
 /*
- * struct scc2698_channel - Channel access to scc2698 IO
+ * union scc2698_channel - Channel access to scc2698 IO
  *
  * dn value are only spacer.
  *
  */
-struct scc2698_channel {
-	union {
-		struct {
-			unsigned char d0, mr;  /* Mode register 1/2*/
-			unsigned char d1, sr;  /* Status register */
-			unsigned char d2, r1;  /* reserved */
-			unsigned char d3, rhr; /* Receive holding register (R) */
-			unsigned char junk[8]; /* other crap for block control */
-		} r; /* Read access */
-		struct {
-			unsigned char d0, mr;  /* Mode register 1/2 */
-			unsigned char d1, csr; /* Clock select register */
-			unsigned char d2, cr;  /* Command register */
-			unsigned char d3, thr; /* Transmit holding register */
-			unsigned char junk[8]; /* other crap for block control */
-		} w; /* Write access */
-	} u;
+union scc2698_channel {
+	struct {
+		u8 d0, mr;  /* Mode register 1/2*/
+		u8 d1, sr;  /* Status register */
+		u8 d2, r1;  /* reserved */
+		u8 d3, rhr; /* Receive holding register (R) */
+		u8 junk[8]; /* other crap for block control */
+	} __packed r; /* Read access */
+	struct {
+		u8 d0, mr;  /* Mode register 1/2 */
+		u8 d1, csr; /* Clock select register */
+		u8 d2, cr;  /* Command register */
+		u8 d3, thr; /* Transmit holding register */
+		u8 junk[8]; /* other crap for block control */
+	} __packed w; /* Write access */
 };
 
 /*
- * struct scc2698_block - Block access to scc2698 IO
+ * union scc2698_block - Block access to scc2698 IO
  *
  * The scc2698 contain 4 block.
  * Each block containt two channel a and b.
  * dn value are only spacer.
  *
  */
-struct scc2698_block {
-	union {
-		struct {
-			unsigned char d0, mra;  /* Mode register 1/2 (a) */
-			unsigned char d1, sra;  /* Status register (a) */
-			unsigned char d2, r1;   /* reserved */
-			unsigned char d3, rhra; /* Receive holding register (a) */
-			unsigned char d4, ipcr; /* Input port change register of block */
-			unsigned char d5, isr;  /* Interrupt status register of block */
-			unsigned char d6, ctur; /* Counter timer upper register of block */
-			unsigned char d7, ctlr; /* Counter timer lower register of block */
-			unsigned char d8, mrb;  /* Mode register 1/2 (b) */
-			unsigned char d9, srb;  /* Status register (b) */
-			unsigned char da, r2;   /* reserved */
-			unsigned char db, rhrb; /* Receive holding register (b) */
-			unsigned char dc, r3;   /* reserved */
-			unsigned char dd, ip;   /* Input port register of block */
-			unsigned char de, ctg;  /* Start counter timer of block */
-			unsigned char df, cts;  /* Stop counter timer of block */
-		} r; /* Read access */
-		struct {
-			unsigned char d0, mra;  /* Mode register 1/2 (a) */
-			unsigned char d1, csra; /* Clock select register (a) */
-			unsigned char d2, cra;  /* Command register (a) */
-			unsigned char d3, thra; /* Transmit holding register (a) */
-			unsigned char d4, acr;  /* Auxiliary control register of block */
-			unsigned char d5, imr;  /* Interrupt mask register of block  */
-			unsigned char d6, ctu;  /* Counter timer upper register of block */
-			unsigned char d7, ctl;  /* Counter timer lower register of block */
-			unsigned char d8, mrb;  /* Mode register 1/2 (b) */
-			unsigned char d9, csrb; /* Clock select register (a) */
-			unsigned char da, crb;  /* Command register (b) */
-			unsigned char db, thrb; /* Transmit holding register (b) */
-			unsigned char dc, r1;   /* reserved */
-			unsigned char dd, opcr; /* Output port configuration register of block */
-			unsigned char de, r2;   /* reserved */
-			unsigned char df, r3;   /* reserved */
-		} w; /* Write access */
-	} u;
-} ;
+union scc2698_block {
+	struct {
+		u8 d0, mra;  /* Mode register 1/2 (a) */
+		u8 d1, sra;  /* Status register (a) */
+		u8 d2, r1;   /* reserved */
+		u8 d3, rhra; /* Receive holding register (a) */
+		u8 d4, ipcr; /* Input port change register of block */
+		u8 d5, isr;  /* Interrupt status register of block */
+		u8 d6, ctur; /* Counter timer upper register of block */
+		u8 d7, ctlr; /* Counter timer lower register of block */
+		u8 d8, mrb;  /* Mode register 1/2 (b) */
+		u8 d9, srb;  /* Status register (b) */
+		u8 da, r2;   /* reserved */
+		u8 db, rhrb; /* Receive holding register (b) */
+		u8 dc, r3;   /* reserved */
+		u8 dd, ip;   /* Input port register of block */
+		u8 de, ctg;  /* Start counter timer of block */
+		u8 df, cts;  /* Stop counter timer of block */
+	} __packed r; /* Read access */
+	struct {
+		u8 d0, mra;  /* Mode register 1/2 (a) */
+		u8 d1, csra; /* Clock select register (a) */
+		u8 d2, cra;  /* Command register (a) */
+		u8 d3, thra; /* Transmit holding register (a) */
+		u8 d4, acr;  /* Auxiliary control register of block */
+		u8 d5, imr;  /* Interrupt mask register of block  */
+		u8 d6, ctu;  /* Counter timer upper register of block */
+		u8 d7, ctl;  /* Counter timer lower register of block */
+		u8 d8, mrb;  /* Mode register 1/2 (b) */
+		u8 d9, csrb; /* Clock select register (a) */
+		u8 da, crb;  /* Command register (b) */
+		u8 db, thrb; /* Transmit holding register (b) */
+		u8 dc, r1;   /* reserved */
+		u8 dd, opcr; /* Output port configuration register of block */
+		u8 de, r2;   /* reserved */
+		u8 df, r3;   /* reserved */
+	} __packed w; /* Write access */
+};
 
 #define MR1_CHRL_5_BITS             (0x0 << 0)
 #define MR1_CHRL_6_BITS             (0x1 << 0)
@@ -225,4 +221,7 @@ struct scc2698_block {
 #define ISR_DELTA_BREAK_B           (0x1 << 6)
 #define ISR_INPUT_PORT_CHANGE       (0x1 << 7)
 
+#define ACK_INT_REQ0			0
+#define ACK_INT_REQ1			2
+
 #endif /* SCC2698_H_ */
diff --git a/drivers/staging/ipack/ipack.c b/drivers/staging/ipack/ipack.c
index c1cd97a4d9c..d1e0651592a 100644
--- a/drivers/staging/ipack/ipack.c
+++ b/drivers/staging/ipack/ipack.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/idr.h>
+#include <asm/io.h>
 #include "ipack.h"
 
 #define to_ipack_dev(device) container_of(device, struct ipack_device, dev)
@@ -22,55 +23,190 @@ static DEFINE_IDA(ipack_ida);
 static void ipack_device_release(struct device *dev)
 {
 	struct ipack_device *device = to_ipack_dev(dev);
+	kfree(device->id);
 	kfree(device);
 }
 
-static int ipack_bus_match(struct device *device, struct device_driver *driver)
+static inline const struct ipack_device_id *
+ipack_match_one_device(const struct ipack_device_id *id,
+		       const struct ipack_device *device)
 {
-	int ret;
-	struct ipack_device *dev = to_ipack_dev(device);
-	struct ipack_driver *drv = to_ipack_driver(driver);
+	if ((id->format == IPACK_ANY_FORMAT ||
+				id->format == device->id_format) &&
+	    (id->vendor == IPACK_ANY_ID || id->vendor == device->id_vendor) &&
+	    (id->device == IPACK_ANY_ID || id->device == device->id_device))
+		return id;
+	return NULL;
+}
 
-	if ((!drv->ops) || (!drv->ops->match))
-		return -EINVAL;
+static const struct ipack_device_id *
+ipack_match_id(const struct ipack_device_id *ids, struct ipack_device *idev)
+{
+	if (ids) {
+		while (ids->vendor || ids->device) {
+			if (ipack_match_one_device(ids, idev))
+				return ids;
+			ids++;
+		}
+	}
+	return NULL;
+}
 
-	ret = drv->ops->match(dev);
-	if (ret)
-		dev->driver = drv;
+static int ipack_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct ipack_device *idev = to_ipack_dev(dev);
+	struct ipack_driver *idrv = to_ipack_driver(drv);
+	const struct ipack_device_id *found_id;
 
-	return ret;
+	found_id = ipack_match_id(idrv->id_table, idev);
+	return found_id ? 1 : 0;
 }
 
 static int ipack_bus_probe(struct device *device)
 {
 	struct ipack_device *dev = to_ipack_dev(device);
+	struct ipack_driver *drv = to_ipack_driver(device->driver);
 
-	if (!dev->driver->ops->probe)
+	if (!drv->ops->probe)
 		return -EINVAL;
 
-	return dev->driver->ops->probe(dev);
+	return drv->ops->probe(dev);
 }
 
 static int ipack_bus_remove(struct device *device)
 {
 	struct ipack_device *dev = to_ipack_dev(device);
+	struct ipack_driver *drv = to_ipack_driver(device->driver);
 
-	if (!dev->driver->ops->remove)
+	if (!drv->ops->remove)
 		return -EINVAL;
 
-	dev->driver->ops->remove(dev);
+	drv->ops->remove(dev);
+	return 0;
+}
+
+#ifdef CONFIG_HOTPLUG
+
+static int ipack_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct ipack_device *idev;
+
+	if (!dev)
+		return -ENODEV;
+
+	idev = to_ipack_dev(dev);
+
+	if (add_uevent_var(env,
+			   "MODALIAS=ipack:f%02Xv%08Xd%08X", idev->id_format,
+			   idev->id_vendor, idev->id_device))
+		return -ENOMEM;
+
 	return 0;
 }
 
+#else /* !CONFIG_HOTPLUG */
+
+#define ipack_uevent NULL
+
+#endif /* !CONFIG_HOTPLUG */
+
+#define ipack_device_attr(field, format_string)				\
+static ssize_t								\
+field##_show(struct device *dev, struct device_attribute *attr,		\
+		char *buf)						\
+{									\
+	struct ipack_device *idev = to_ipack_dev(dev);			\
+	return sprintf(buf, format_string, idev->field);		\
+}
+
+static ssize_t id_show(struct device *dev,
+		       struct device_attribute *attr, char *buf)
+{
+	unsigned int i, c, l, s;
+	struct ipack_device *idev = to_ipack_dev(dev);
+
+
+	switch (idev->id_format) {
+	case IPACK_ID_VERSION_1:
+		l = 0x7; s = 1; break;
+	case IPACK_ID_VERSION_2:
+		l = 0xf; s = 2; break;
+	default:
+		return -EIO;
+	}
+	c = 0;
+	for (i = 0; i < idev->id_avail; i++) {
+		if (i > 0) {
+			if ((i & l) == 0)
+				buf[c++] = '\n';
+			else if ((i & s) == 0)
+				buf[c++] = ' ';
+		}
+		sprintf(&buf[c], "%02x", idev->id[i]);
+		c += 2;
+	}
+	buf[c++] = '\n';
+	return c;
+}
+
+static ssize_t
+id_vendor_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct ipack_device *idev = to_ipack_dev(dev);
+	switch (idev->id_format) {
+	case IPACK_ID_VERSION_1:
+		return sprintf(buf, "0x%02x\n", idev->id_vendor);
+	case IPACK_ID_VERSION_2:
+		return sprintf(buf, "0x%06x\n", idev->id_vendor);
+	default:
+		return -EIO;
+	}
+}
+
+static ssize_t
+id_device_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct ipack_device *idev = to_ipack_dev(dev);
+	switch (idev->id_format) {
+	case IPACK_ID_VERSION_1:
+		return sprintf(buf, "0x%02x\n", idev->id_device);
+	case IPACK_ID_VERSION_2:
+		return sprintf(buf, "0x%04x\n", idev->id_device);
+	default:
+		return -EIO;
+	}
+}
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct ipack_device *idev = to_ipack_dev(dev);
+
+	return sprintf(buf, "ipac:f%02Xv%08Xd%08X", idev->id_format,
+		       idev->id_vendor, idev->id_device);
+}
+
+ipack_device_attr(id_format, "0x%hhu\n");
+
+static struct device_attribute ipack_dev_attrs[] = {
+	__ATTR_RO(id),
+	__ATTR_RO(id_device),
+	__ATTR_RO(id_format),
+	__ATTR_RO(id_vendor),
+	__ATTR_RO(modalias),
+};
+
 static struct bus_type ipack_bus_type = {
-	.name  = "ipack",
-	.probe = ipack_bus_probe,
-	.match = ipack_bus_match,
-	.remove = ipack_bus_remove,
+	.name      = "ipack",
+	.probe     = ipack_bus_probe,
+	.match     = ipack_bus_match,
+	.remove    = ipack_bus_remove,
+	.dev_attrs = ipack_dev_attrs,
+	.uevent	   = ipack_uevent,
 };
 
 struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots,
-					    struct ipack_bus_ops *ops)
+					    const struct ipack_bus_ops *ops)
 {
 	int bus_nr;
 	struct ipack_bus_device *bus;
@@ -93,8 +229,20 @@ struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots,
 }
 EXPORT_SYMBOL_GPL(ipack_bus_register);
 
+static int ipack_unregister_bus_member(struct device *dev, void *data)
+{
+	struct ipack_device *idev = to_ipack_dev(dev);
+	struct ipack_bus_device *bus = data;
+
+	if (idev->bus_nr == bus->bus_nr)
+		ipack_device_unregister(idev);
+
+	return 1;
+}
+
 int ipack_bus_unregister(struct ipack_bus_device *bus)
 {
+	bus_for_each_dev(&ipack_bus_type, NULL, bus, ipack_unregister_bus_member);
 	ida_simple_remove(&ipack_ida, bus->bus_nr);
 	kfree(bus);
 	return 0;
@@ -102,7 +250,7 @@ int ipack_bus_unregister(struct ipack_bus_device *bus)
 EXPORT_SYMBOL_GPL(ipack_bus_unregister);
 
 int ipack_driver_register(struct ipack_driver *edrv, struct module *owner,
-			  char *name)
+			  const char *name)
 {
 	edrv->driver.owner = owner;
 	edrv->driver.name = name;
@@ -117,8 +265,169 @@ void ipack_driver_unregister(struct ipack_driver *edrv)
 }
 EXPORT_SYMBOL_GPL(ipack_driver_unregister);
 
+static u16 ipack_crc_byte(u16 crc, u8 c)
+{
+	int i;
+
+	crc ^= c << 8;
+	for (i = 0; i < 8; i++)
+		crc = (crc << 1) ^ ((crc & 0x8000) ? 0x1021 : 0);
+	return crc;
+}
+
+/*
+ * The algorithm in lib/crc-ccitt.c does not seem to apply since it uses the
+ * opposite bit ordering.
+ */
+static u8 ipack_calc_crc1(struct ipack_device *dev)
+{
+	u8 c;
+	u16 crc;
+	unsigned int i;
+
+	crc = 0xffff;
+	for (i = 0; i < dev->id_avail; i++) {
+		c = (i != 11) ? dev->id[i] : 0;
+		crc = ipack_crc_byte(crc, c);
+	}
+	crc = ~crc;
+	return crc & 0xff;
+}
+
+static u16 ipack_calc_crc2(struct ipack_device *dev)
+{
+	u8 c;
+	u16 crc;
+	unsigned int i;
+
+	crc = 0xffff;
+	for (i = 0; i < dev->id_avail; i++) {
+		c = ((i != 0x18) && (i != 0x19)) ? dev->id[i] : 0;
+		crc = ipack_crc_byte(crc, c);
+	}
+	crc = ~crc;
+	return crc;
+}
+
+static void ipack_parse_id1(struct ipack_device *dev)
+{
+	u8 *id = dev->id;
+	u8 crc;
+
+	dev->id_vendor = id[4];
+	dev->id_device = id[5];
+	dev->speed_8mhz = 1;
+	dev->speed_32mhz = (id[7] == 'H');
+	crc = ipack_calc_crc1(dev);
+	dev->id_crc_correct = (crc == id[11]);
+	if (!dev->id_crc_correct) {
+		dev_warn(&dev->dev, "ID CRC invalid found 0x%x, expected 0x%x.\n",
+				id[11], crc);
+	}
+}
+
+static void ipack_parse_id2(struct ipack_device *dev)
+{
+	__be16 *id = (__be16 *) dev->id;
+	u16 flags, crc;
+
+	dev->id_vendor = ((be16_to_cpu(id[3]) & 0xff) << 16)
+			 + be16_to_cpu(id[4]);
+	dev->id_device = be16_to_cpu(id[5]);
+	flags = be16_to_cpu(id[10]);
+	dev->speed_8mhz = !!(flags & 2);
+	dev->speed_32mhz = !!(flags & 4);
+	crc = ipack_calc_crc2(dev);
+	dev->id_crc_correct = (crc == be16_to_cpu(id[12]));
+	if (!dev->id_crc_correct) {
+		dev_warn(&dev->dev, "ID CRC invalid found 0x%x, expected 0x%x.\n",
+				id[11], crc);
+	}
+}
+
+static int ipack_device_read_id(struct ipack_device *dev)
+{
+	u8 __iomem *idmem;
+	int i;
+	int ret = 0;
+
+	ret = dev->bus->ops->map_space(dev, 0, IPACK_ID_SPACE);
+	if (ret) {
+		dev_err(&dev->dev, "error mapping memory\n");
+		return ret;
+	}
+	idmem = dev->id_space.address;
+
+	/* Determine ID PROM Data Format.  If we find the ids "IPAC" or "IPAH"
+	 * we are dealing with a IndustryPack  format 1 device.  If we detect
+	 * "VITA4 " (16 bit big endian formatted) we are dealing with a
+	 * IndustryPack format 2 device */
+	if ((ioread8(idmem + 1) == 'I') &&
+			(ioread8(idmem + 3) == 'P') &&
+			(ioread8(idmem + 5) == 'A') &&
+			((ioread8(idmem + 7) == 'C') ||
+			 (ioread8(idmem + 7) == 'H'))) {
+		dev->id_format = IPACK_ID_VERSION_1;
+		dev->id_avail = ioread8(idmem + 0x15);
+		if ((dev->id_avail < 0x0c) || (dev->id_avail > 0x40)) {
+			dev_warn(&dev->dev, "invalid id size");
+			dev->id_avail = 0x0c;
+		}
+	} else if ((ioread8(idmem + 0) == 'I') &&
+			(ioread8(idmem + 1) == 'V') &&
+			(ioread8(idmem + 2) == 'A') &&
+			(ioread8(idmem + 3) == 'T') &&
+			(ioread8(idmem + 4) == ' ') &&
+			(ioread8(idmem + 5) == '4')) {
+		dev->id_format = IPACK_ID_VERSION_2;
+		dev->id_avail = ioread16be(idmem + 0x16);
+		if ((dev->id_avail < 0x1a) || (dev->id_avail > 0x40)) {
+			dev_warn(&dev->dev, "invalid id size");
+			dev->id_avail = 0x1a;
+		}
+	} else {
+		dev->id_format = IPACK_ID_VERSION_INVALID;
+		dev->id_avail = 0;
+	}
+
+	if (!dev->id_avail) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	/* Obtain the amount of memory required to store a copy of the complete
+	 * ID ROM contents */
+	dev->id = kmalloc(dev->id_avail, GFP_KERNEL);
+	if (!dev->id) {
+		dev_err(&dev->dev, "dev->id alloc failed.\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+	for (i = 0; i < dev->id_avail; i++) {
+		if (dev->id_format == IPACK_ID_VERSION_1)
+			dev->id[i] = ioread8(idmem + (i << 1) + 1);
+		else
+			dev->id[i] = ioread8(idmem + i);
+	}
+
+	/* now we can finally work with the copy */
+	switch (dev->id_format) {
+	case IPACK_ID_VERSION_1:
+		ipack_parse_id1(dev);
+		break;
+	case IPACK_ID_VERSION_2:
+		ipack_parse_id2(dev);
+		break;
+	}
+
+out:
+	dev->bus->ops->unmap_space(dev, IPACK_ID_SPACE);
+
+	return ret;
+}
+
 struct ipack_device *ipack_device_register(struct ipack_bus_device *bus,
-					   int slot, int irqv)
+					   int slot)
 {
 	int ret;
 	struct ipack_device *dev;
@@ -132,13 +441,32 @@ struct ipack_device *ipack_device_register(struct ipack_bus_device *bus,
 	dev->dev.parent = bus->parent;
 	dev->slot = slot;
 	dev->bus_nr = bus->bus_nr;
-	dev->irq = irqv;
 	dev->bus = bus;
 	dev_set_name(&dev->dev,
 		     "ipack-dev.%u.%u", dev->bus_nr, dev->slot);
 
+	if (bus->ops->set_clockrate(dev, 8))
+		dev_warn(&dev->dev, "failed to switch to 8 MHz operation for reading of device ID.\n");
+	if (bus->ops->reset_timeout(dev))
+		dev_warn(&dev->dev, "failed to reset potential timeout.");
+
+	ret = ipack_device_read_id(dev);
+	if (ret < 0) {
+		dev_err(&dev->dev, "error reading device id section.\n");
+		kfree(dev);
+		return NULL;
+	}
+
+	/* if the device supports 32 MHz operation, use it. */
+	if (dev->speed_32mhz) {
+		ret = bus->ops->set_clockrate(dev, 32);
+		if (ret < 0)
+			dev_err(&dev->dev, "failed to switch to 32 MHz operation.\n");
+	}
+
 	ret = device_register(&dev->dev);
 	if (ret < 0) {
+		kfree(dev->id);
 		kfree(dev);
 		return NULL;
 	}
diff --git a/drivers/staging/ipack/ipack.h b/drivers/staging/ipack/ipack.h
index 8bc001e3ca4..d8e3bb6feac 100644
--- a/drivers/staging/ipack/ipack.h
+++ b/drivers/staging/ipack/ipack.h
@@ -9,7 +9,11 @@
  * Software Foundation; version 2 of the License.
  */
 
+#include <linux/mod_devicetable.h>
 #include <linux/device.h>
+#include <linux/interrupt.h>
+
+#include "ipack_ids.h"
 
 #define IPACK_IDPROM_OFFSET_I			0x01
 #define IPACK_IDPROM_OFFSET_P			0x03
@@ -31,6 +35,7 @@ enum ipack_space {
 	IPACK_IO_SPACE    = 0,
 	IPACK_ID_SPACE    = 1,
 	IPACK_MEM_SPACE   = 2,
+	IPACK_INT_SPACE,
 };
 
 /**
@@ -49,8 +54,6 @@ struct ipack_addr_space {
  *
  *	@bus_nr: IP bus number where the device is plugged
  *	@slot: Slot where the device is plugged in the carrier board
- *	@irq: IRQ vector
- *	@driver: Pointer to the ipack_driver that manages the device
  *	@bus: ipack_bus_device where the device is plugged to.
  *	@id_space: Virtual address to ID space.
  *	@io_space: Virtual address to IO space.
@@ -64,25 +67,30 @@ struct ipack_addr_space {
 struct ipack_device {
 	unsigned int bus_nr;
 	unsigned int slot;
-	unsigned int irq;
-	struct ipack_driver *driver;
 	struct ipack_bus_device *bus;
 	struct ipack_addr_space id_space;
 	struct ipack_addr_space io_space;
+	struct ipack_addr_space int_space;
 	struct ipack_addr_space mem_space;
 	struct device dev;
+	u8                      *id;
+	size_t			 id_avail;
+	u32			 id_vendor;
+	u32			 id_device;
+	u8			 id_format;
+	unsigned int		 id_crc_correct:1;
+	unsigned int		 speed_8mhz:1;
+	unsigned int		 speed_32mhz:1;
 };
 
 /**
  *	struct ipack_driver_ops -- callbacks to mezzanine driver for installing/removing one device
  *
- *	@match: Match function
  *	@probe: Probe function
  *	@remove: tell the driver that the carrier board wants to remove one device
  */
 
 struct ipack_driver_ops {
-	int (*match) (struct ipack_device *dev);
 	int (*probe) (struct ipack_device *dev);
 	void (*remove) (struct ipack_device *dev);
 };
@@ -95,7 +103,8 @@ struct ipack_driver_ops {
  */
 struct ipack_driver {
 	struct device_driver driver;
-	struct ipack_driver_ops *ops;
+	const struct ipack_device_id *id_table;
+	const struct ipack_driver_ops *ops;
 };
 
 /**
@@ -105,26 +114,27 @@ struct ipack_driver {
  *	@unmap_space: unmap IP address space
  *	@request_irq: request IRQ
  *	@free_irq: free IRQ
- *	@read8: read unsigned char
- *	@read16: read unsigned short
- *	@read32: read unsigned int
- *	@write8: read unsigned char
- *	@write16: read unsigned short
- *	@write32: read unsigned int
- *	@remove_device: tell the bridge module that the device has been removed
+ *	@get_clockrate: Returns the clockrate the carrier is currently
+ *		communicating with the device at.
+ *	@set_clockrate: Sets the clock-rate for carrier / module communication.
+ *		Should return -EINVAL if the requested speed is not supported.
+ *	@get_error: Returns the error state for the slot the device is attached
+ *		to.
+ *	@get_timeout: Returns 1 if the communication with the device has
+ *		previously timed out.
+ *	@reset_timeout: Resets the state returned by get_timeout.
  */
 struct ipack_bus_ops {
 	int (*map_space) (struct ipack_device *dev, unsigned int memory_size, int space);
 	int (*unmap_space) (struct ipack_device *dev, int space);
-	int (*request_irq) (struct ipack_device *dev, int vector, int (*handler)(void *), void *arg);
+	int (*request_irq) (struct ipack_device *dev,
+			    irqreturn_t (*handler)(void *), void *arg);
 	int (*free_irq) (struct ipack_device *dev);
-	int (*read8) (struct ipack_device *dev, int space, unsigned long offset, unsigned char *value);
-	int (*read16) (struct ipack_device *dev, int space, unsigned long offset, unsigned short *value);
-	int (*read32) (struct ipack_device *dev, int space, unsigned long offset, unsigned int *value);
-	int (*write8) (struct ipack_device *dev, int space, unsigned long offset, unsigned char value);
-	int (*write16) (struct ipack_device *dev, int space, unsigned long offset, unsigned short value);
-	int (*write32) (struct ipack_device *dev, int space, unsigned long offset, unsigned int value);
-	int (*remove_device) (struct ipack_device *dev);
+	int (*get_clockrate) (struct ipack_device *dev);
+	int (*set_clockrate) (struct ipack_device *dev, int mherz);
+	int (*get_error) (struct ipack_device *dev);
+	int (*get_timeout) (struct ipack_device *dev);
+	int (*reset_timeout) (struct ipack_device *dev);
 };
 
 /**
@@ -139,7 +149,7 @@ struct ipack_bus_device {
 	struct device *parent;
 	int slots;
 	int bus_nr;
-	struct ipack_bus_ops *ops;
+	const struct ipack_bus_ops *ops;
 };
 
 /**
@@ -153,7 +163,7 @@ struct ipack_bus_device {
  * available bus device in ipack.
  */
 struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots,
-					    struct ipack_bus_ops *ops);
+					    const struct ipack_bus_ops *ops);
 
 /**
  *	ipack_bus_unregister -- unregister an ipack bus
@@ -166,7 +176,8 @@ int ipack_bus_unregister(struct ipack_bus_device *bus);
  * Called by a ipack driver to register itself as a driver
  * that can manage ipack devices.
  */
-int ipack_driver_register(struct ipack_driver *edrv, struct module *owner, char *name);
+int ipack_driver_register(struct ipack_driver *edrv, struct module *owner,
+			  const char *name);
 void ipack_driver_unregister(struct ipack_driver *edrv);
 
 /**
@@ -174,10 +185,33 @@ void ipack_driver_unregister(struct ipack_driver *edrv);
  *
  * @bus: ipack bus device it is plugged to.
  * @slot: slot position in the bus device.
- * @irqv: IRQ vector for the mezzanine.
  *
  * Register a new ipack device (mezzanine device). The call is done by
  * the carrier device driver.
  */
-struct ipack_device *ipack_device_register(struct ipack_bus_device *bus, int slot, int irqv);
+struct ipack_device *ipack_device_register(struct ipack_bus_device *bus, int slot);
 void ipack_device_unregister(struct ipack_device *dev);
+
+/**
+ * DEFINE_IPACK_DEVICE_TABLE - macro used to describe a IndustryPack table
+ * @_table: device table name
+ *
+ * This macro is used to create a struct ipack_device_id array (a device table)
+ * in a generic manner.
+ */
+#define DEFINE_IPACK_DEVICE_TABLE(_table) \
+	const struct ipack_device_id _table[] __devinitconst
+
+/**
+ * IPACK_DEVICE - macro used to describe a specific IndustryPack device
+ * @_format: the format version (currently either 1 or 2, 8 bit value)
+ * @vend:    the 8 or 24 bit IndustryPack Vendor ID
+ * @dev:     the 8 or 16  bit IndustryPack Device ID
+ *
+ * This macro is used to create a struct ipack_device_id that matches a specific
+ * device.
+ */
+#define IPACK_DEVICE(_format, vend, dev) \
+	 .format = (_format), \
+	 .vendor = (vend), \
+	 .device = (dev)
diff --git a/drivers/staging/ipack/ipack_ids.h b/drivers/staging/ipack/ipack_ids.h
new file mode 100644
index 00000000000..8153fee3f2f
--- /dev/null
+++ b/drivers/staging/ipack/ipack_ids.h
@@ -0,0 +1,32 @@
+/*
+ * IndustryPack Fromat, Vendor and Device IDs.
+ */
+
+/* ID section format versions */
+#define IPACK_ID_VERSION_INVALID	0x00
+#define IPACK_ID_VERSION_1		0x01
+#define IPACK_ID_VERSION_2		0x02
+
+/* Vendors and devices. Sort key: vendor first, device next. */
+#define IPACK1_VENDOR_ID_RESERVED1	0x00
+#define IPACK1_VENDOR_ID_RESERVED2	0xFF
+#define IPACK1_VENDOR_ID_UNREGISTRED01	0x01
+#define IPACK1_VENDOR_ID_UNREGISTRED02	0x02
+#define IPACK1_VENDOR_ID_UNREGISTRED03	0x03
+#define IPACK1_VENDOR_ID_UNREGISTRED04	0x04
+#define IPACK1_VENDOR_ID_UNREGISTRED05	0x05
+#define IPACK1_VENDOR_ID_UNREGISTRED06	0x06
+#define IPACK1_VENDOR_ID_UNREGISTRED07	0x07
+#define IPACK1_VENDOR_ID_UNREGISTRED08	0x08
+#define IPACK1_VENDOR_ID_UNREGISTRED09	0x09
+#define IPACK1_VENDOR_ID_UNREGISTRED10	0x0A
+#define IPACK1_VENDOR_ID_UNREGISTRED11	0x0B
+#define IPACK1_VENDOR_ID_UNREGISTRED12	0x0C
+#define IPACK1_VENDOR_ID_UNREGISTRED13	0x0D
+#define IPACK1_VENDOR_ID_UNREGISTRED14	0x0E
+#define IPACK1_VENDOR_ID_UNREGISTRED15	0x0F
+
+#define IPACK1_VENDOR_ID_SBS            0xF0
+#define IPACK1_DEVICE_ID_SBS_OCTAL_232  0x22
+#define IPACK1_DEVICE_ID_SBS_OCTAL_422  0x2A
+#define IPACK1_DEVICE_ID_SBS_OCTAL_485  0x48
diff --git a/drivers/staging/keucr/smcommon.h b/drivers/staging/keucr/smcommon.h
index 278bdb87112..4d57203b64d 100644
--- a/drivers/staging/keucr/smcommon.h
+++ b/drivers/staging/keucr/smcommon.h
@@ -25,7 +25,5 @@ Define Difinetion
 #define ERR_NoSmartMedia    0x003A /* Medium Not Present */
 
 /***************************************************************************/
-void StringCopy(char *, char *, int);
-int  StringCmp(char *, char *, int);
 
 #endif
diff --git a/drivers/staging/keucr/usb.c b/drivers/staging/keucr/usb.c
index 48330340273..55a0b82c639 100644
--- a/drivers/staging/keucr/usb.c
+++ b/drivers/staging/keucr/usb.c
@@ -320,7 +320,7 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id)
 
 	us->subclass = idesc->bInterfaceSubClass;
 	us->protocol = idesc->bInterfaceProtocol;
-	us->fflags = USB_US_ORIG_FLAGS(id->driver_info);
+	us->fflags = id->driver_info;
 	us->Power_IsResum = false;
 
 	if (us->fflags & US_FL_IGNORE_DEVICE)
diff --git a/drivers/staging/line6/pcm.c b/drivers/staging/line6/pcm.c
index 5e319e3ce68..7fe44a6fd0e 100644
--- a/drivers/staging/line6/pcm.c
+++ b/drivers/staging/line6/pcm.c
@@ -48,7 +48,13 @@ static ssize_t pcm_set_impulse_volume(struct device *dev,
 				      const char *buf, size_t count)
 {
 	struct snd_line6_pcm *line6pcm = dev2pcm(dev);
-	int value = simple_strtoul(buf, NULL, 10);
+	int value;
+	int rv;
+
+	rv = kstrtoint(buf, 10, &value);
+	if (rv < 0)
+		return rv;
+
 	line6pcm->impulse_volume = value;
 
 	if (value > 0)
diff --git a/drivers/staging/line6/variax.c b/drivers/staging/line6/variax.c
index bb99ee4919e..f97416b1de5 100644
--- a/drivers/staging/line6/variax.c
+++ b/drivers/staging/line6/variax.c
@@ -353,10 +353,10 @@ static ssize_t variax_set_model(struct device *dev,
 {
 	struct usb_line6_variax *variax =
 	    usb_get_intfdata(to_usb_interface(dev));
-	unsigned long value;
+	u8 value;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &value);
+	ret = kstrtou8(buf, 10, &value);
 	if (ret)
 		return ret;
 
@@ -387,10 +387,10 @@ static ssize_t variax_set_active(struct device *dev,
 {
 	struct usb_line6_variax *variax =
 	    usb_get_intfdata(to_usb_interface(dev));
-	unsigned long value;
+	u8 value;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &value);
+	ret = kstrtou8(buf, 10, &value);
 	if (ret)
 		return ret;
 
diff --git a/drivers/staging/nvec/Kconfig b/drivers/staging/nvec/Kconfig
index 43048e9ba0d..1235a7897d0 100644
--- a/drivers/staging/nvec/Kconfig
+++ b/drivers/staging/nvec/Kconfig
@@ -28,7 +28,7 @@ config NVEC_POWER
 
 config NVEC_PAZ00
 	bool "Support for OEM specific functions on Compal PAZ00 based devices"
-	depends on MFD_NVEC && LEDS_CLASS && MACH_PAZ00
+	depends on MFD_NVEC && LEDS_CLASS
 	help
 	  Say Y to enable control of the yellow side leds on Compal PAZ00 based
 	  devices, e.g. Toshbia AC100 and Dynabooks AZ netbooks.
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 695ea35f75b..094fdc366f3 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -264,7 +264,7 @@ int nvec_write_async(struct nvec_chip *nvec, const unsigned char *data,
 	list_add_tail(&msg->node, &nvec->tx_data);
 	spin_unlock_irqrestore(&nvec->tx_lock, flags);
 
-	queue_work(nvec->wq, &nvec->tx_work);
+	schedule_work(&nvec->tx_work);
 
 	return 0;
 }
@@ -294,8 +294,10 @@ struct nvec_msg *nvec_write_sync(struct nvec_chip *nvec,
 
 	nvec->sync_write_pending = (data[1] << 8) + data[0];
 
-	if (nvec_write_async(nvec, data, size) < 0)
+	if (nvec_write_async(nvec, data, size) < 0) {
+		mutex_unlock(&nvec->sync_write_mutex);
 		return NULL;
+	}
 
 	dev_dbg(nvec->dev, "nvec_sync_write: 0x%04x\n",
 					nvec->sync_write_pending);
@@ -366,8 +368,7 @@ static void nvec_request_master(struct work_struct *work)
 static int parse_msg(struct nvec_chip *nvec, struct nvec_msg *msg)
 {
 	if ((msg->data[0] & 1 << 7) == 0 && msg->data[3]) {
-		dev_err(nvec->dev, "ec responded %02x %02x %02x %02x\n",
-			msg->data[0], msg->data[1], msg->data[2], msg->data[3]);
+		dev_err(nvec->dev, "ec responded %*ph\n", 4, msg->data);
 		return -EINVAL;
 	}
 
@@ -470,7 +471,7 @@ static void nvec_rx_completed(struct nvec_chip *nvec)
 	if (!nvec_msg_is_event(nvec->rx))
 		complete(&nvec->ec_transfer);
 
-	queue_work(nvec->wq, &nvec->rx_work);
+	schedule_work(&nvec->rx_work);
 }
 
 /**
@@ -737,12 +738,14 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 		nvec->gpio = pdata->gpio;
 		nvec->i2c_addr = pdata->i2c_addr;
 	} else if (nvec->dev->of_node) {
-		nvec->gpio = of_get_named_gpio(nvec->dev->of_node, "request-gpios", 0);
+		nvec->gpio = of_get_named_gpio(nvec->dev->of_node,
+					"request-gpios", 0);
 		if (nvec->gpio < 0) {
 			dev_err(&pdev->dev, "no gpio specified");
 			return -ENODEV;
 		}
-		if (of_property_read_u32(nvec->dev->of_node, "slave-addr", &nvec->i2c_addr)) {
+		if (of_property_read_u32(nvec->dev->of_node,
+					"slave-addr", &nvec->i2c_addr)) {
 			dev_err(&pdev->dev, "no i2c address specified");
 			return -ENODEV;
 		}
@@ -769,7 +772,7 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	i2c_clk = clk_get_sys("tegra-i2c.2", NULL);
+	i2c_clk = clk_get_sys("tegra-i2c.2", "div-clk");
 	if (IS_ERR(i2c_clk)) {
 		dev_err(nvec->dev, "failed to get controller clock\n");
 		return -ENODEV;
@@ -791,13 +794,11 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&nvec->tx_data);
 	INIT_WORK(&nvec->rx_work, nvec_dispatch);
 	INIT_WORK(&nvec->tx_work, nvec_request_master);
-	nvec->wq = alloc_workqueue("nvec", WQ_NON_REENTRANT, 2);
 
 	err = devm_gpio_request_one(&pdev->dev, nvec->gpio, GPIOF_OUT_INIT_HIGH,
 					"nvec gpio");
 	if (err < 0) {
 		dev_err(nvec->dev, "couldn't request gpio\n");
-		destroy_workqueue(nvec->wq);
 		return -ENODEV;
 	}
 
@@ -805,7 +806,6 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 				"nvec", nvec);
 	if (err) {
 		dev_err(nvec->dev, "couldn't request irq\n");
-		destroy_workqueue(nvec->wq);
 		return -ENODEV;
 	}
 	disable_irq(nvec->irq);
@@ -837,7 +837,7 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 	}
 
 	ret = mfd_add_devices(nvec->dev, -1, nvec_devices,
-			      ARRAY_SIZE(nvec_devices), base, 0);
+			      ARRAY_SIZE(nvec_devices), base, 0, NULL);
 	if (ret)
 		dev_err(nvec->dev, "error adding subdevices\n");
 
@@ -859,7 +859,8 @@ static int __devexit tegra_nvec_remove(struct platform_device *pdev)
 
 	nvec_write_async(nvec, EC_DISABLE_EVENT_REPORTING, 3);
 	mfd_remove_devices(nvec->dev);
-	destroy_workqueue(nvec->wq);
+	cancel_work_sync(&nvec->rx_work);
+	cancel_work_sync(&nvec->tx_work);
 
 	return 0;
 }
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
index 2c4bd746715..d49c32a9569 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon.c
@@ -11,6 +11,7 @@
  * License as published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
 #include <linux/fb.h>
@@ -72,18 +73,16 @@ static int dcon_hw_init(struct dcon_priv *dcon, int is_init)
 
 	ver = dcon_read(dcon, DCON_REG_ID);
 	if ((ver >> 8) != 0xDC) {
-		printk(KERN_ERR "olpc-dcon:  DCON ID not 0xDCxx: 0x%04x instead.\n",
-			ver);
+		pr_err("DCON ID not 0xDCxx: 0x%04x instead.\n", ver);
 		rc = -ENXIO;
 		goto err;
 	}
 
 	if (is_init) {
-		printk(KERN_INFO "olpc-dcon:  Discovered DCON version %x\n",
-				ver & 0xFF);
+		pr_info("Discovered DCON version %x\n", ver & 0xFF);
 		rc = pdata->init(dcon);
 		if (rc != 0) {
-			printk(KERN_ERR "olpc-dcon:  Unable to init.\n");
+			pr_err("Unable to init.\n");
 			goto err;
 		}
 	}
@@ -137,8 +136,7 @@ power_up:
 		x = 1;
 		x = olpc_ec_cmd(0x26, (unsigned char *)&x, 1, NULL, 0);
 		if (x) {
-			printk(KERN_WARNING "olpc-dcon:  unable to force dcon to power up: %d!\n",
-				x);
+			pr_warn("unable to force dcon to power up: %d!\n", x);
 			return x;
 		}
 		msleep(10); /* we'll be conservative */
@@ -151,7 +149,7 @@ power_up:
 		x = dcon_read(dcon, DCON_REG_ID);
 	}
 	if (x < 0) {
-		printk(KERN_ERR "olpc-dcon:  unable to stabilize dcon's smbus, reasserting power and praying.\n");
+		pr_err("unable to stabilize dcon's smbus, reasserting power and praying.\n");
 		BUG_ON(olpc_board_at_least(olpc_board(0xc2)));
 		x = 0;
 		olpc_ec_cmd(0x26, (unsigned char *)&x, 1, NULL, 0);
@@ -222,8 +220,7 @@ static void dcon_sleep(struct dcon_priv *dcon, bool sleep)
 		x = 0;
 		x = olpc_ec_cmd(0x26, (unsigned char *)&x, 1, NULL, 0);
 		if (x)
-			printk(KERN_WARNING "olpc-dcon:  unable to force dcon to power down: %d!\n",
-				x);
+			pr_warn("unable to force dcon to power down: %d!\n", x);
 		else
 			dcon->asleep = sleep;
 	} else {
@@ -232,8 +229,7 @@ static void dcon_sleep(struct dcon_priv *dcon, bool sleep)
 			dcon->disp_mode |= MODE_BL_ENABLE;
 		x = dcon_bus_stabilize(dcon, 1);
 		if (x)
-			printk(KERN_WARNING "olpc-dcon:  unable to reinit dcon hardware: %d!\n",
-				x);
+			pr_warn("unable to reinit dcon hardware: %d!\n", x);
 		else
 			dcon->asleep = sleep;
 
@@ -304,12 +300,11 @@ static void dcon_source_switch(struct work_struct *work)
 
 	switch (source) {
 	case DCON_SOURCE_CPU:
-		printk(KERN_INFO "dcon_source_switch to CPU\n");
+		pr_info("dcon_source_switch to CPU\n");
 		/* Enable the scanline interrupt bit */
 		if (dcon_write(dcon, DCON_REG_MODE,
 				dcon->disp_mode | MODE_SCAN_INT))
-			printk(KERN_ERR
-			       "olpc-dcon:  couldn't enable scanline interrupt!\n");
+			pr_err("couldn't enable scanline interrupt!\n");
 		else {
 			/* Wait up to one second for the scanline interrupt */
 			wait_event_timeout(dcon_wait_queue,
@@ -317,11 +312,11 @@ static void dcon_source_switch(struct work_struct *work)
 		}
 
 		if (!dcon->switched)
-			printk(KERN_ERR "olpc-dcon:  Timeout entering CPU mode; expect a screen glitch.\n");
+			pr_err("Timeout entering CPU mode; expect a screen glitch.\n");
 
 		/* Turn off the scanline interrupt */
 		if (dcon_write(dcon, DCON_REG_MODE, dcon->disp_mode))
-			printk(KERN_ERR "olpc-dcon:  couldn't disable scanline interrupt!\n");
+			pr_err("couldn't disable scanline interrupt!\n");
 
 		/*
 		 * Ideally we'd like to disable interrupts here so that the
@@ -332,7 +327,7 @@ static void dcon_source_switch(struct work_struct *work)
 		 * For now, we just hope..
 		 */
 		if (!dcon_blank_fb(dcon, false)) {
-			printk(KERN_ERR "olpc-dcon:  Failed to enter CPU mode\n");
+			pr_err("Failed to enter CPU mode\n");
 			dcon->pending_src = DCON_SOURCE_DCON;
 			return;
 		}
@@ -341,14 +336,14 @@ static void dcon_source_switch(struct work_struct *work)
 		pdata->set_dconload(1);
 		getnstimeofday(&dcon->load_time);
 
-		printk(KERN_INFO "olpc-dcon: The CPU has control\n");
+		pr_info("The CPU has control\n");
 		break;
 	case DCON_SOURCE_DCON:
 	{
 		int t;
 		struct timespec delta_t;
 
-		printk(KERN_INFO "dcon_source_switch to DCON\n");
+		pr_info("dcon_source_switch to DCON\n");
 
 		add_wait_queue(&dcon_wait_queue, &wait);
 		set_current_state(TASK_UNINTERRUPTIBLE);
@@ -362,7 +357,7 @@ static void dcon_source_switch(struct work_struct *work)
 		set_current_state(TASK_RUNNING);
 
 		if (!dcon->switched) {
-			printk(KERN_ERR "olpc-dcon: Timeout entering DCON mode; expect a screen glitch.\n");
+			pr_err("Timeout entering DCON mode; expect a screen glitch.\n");
 		} else {
 			/* sometimes the DCON doesn't follow its own rules,
 			 * and doesn't wait for two vsync pulses before
@@ -378,7 +373,7 @@ static void dcon_source_switch(struct work_struct *work)
 			delta_t = timespec_sub(dcon->irq_time, dcon->load_time);
 			if (dcon->switched && delta_t.tv_sec == 0 &&
 					delta_t.tv_nsec < NSEC_PER_MSEC * 20) {
-				printk(KERN_ERR "olpc-dcon: missed loading, retrying\n");
+				pr_err("missed loading, retrying\n");
 				pdata->set_dconload(1);
 				mdelay(41);
 				pdata->set_dconload(0);
@@ -388,7 +383,7 @@ static void dcon_source_switch(struct work_struct *work)
 		}
 
 		dcon_blank_fb(dcon, true);
-		printk(KERN_INFO "olpc-dcon: The DCON has control\n");
+		pr_info("The DCON has control\n");
 		break;
 	}
 	default:
@@ -476,7 +471,7 @@ static ssize_t dcon_freeze_store(struct device *dev,
 	if (ret)
 		return ret;
 
-	printk(KERN_INFO "dcon_freeze_store: %lu\n", output);
+	pr_info("dcon_freeze_store: %lu\n", output);
 
 	switch (output) {
 	case 0:
@@ -650,7 +645,7 @@ static int dcon_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	dcon_device = platform_device_alloc("dcon", -1);
 
 	if (dcon_device == NULL) {
-		printk(KERN_ERR "dcon:  Unable to create the DCON device\n");
+		pr_err("Unable to create the DCON device\n");
 		rc = -ENOMEM;
 		goto eirq;
 	}
@@ -658,7 +653,7 @@ static int dcon_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	platform_set_drvdata(dcon_device, dcon);
 
 	if (rc) {
-		printk(KERN_ERR "dcon:  Unable to add the DCON device\n");
+		pr_err("Unable to add the DCON device\n");
 		goto edev;
 	}
 
@@ -762,7 +757,7 @@ irqreturn_t dcon_interrupt(int irq, void *id)
 
 	switch (status & 3) {
 	case 3:
-		printk(KERN_DEBUG "olpc-dcon: DCONLOAD_MISSED interrupt\n");
+		pr_debug("DCONLOAD_MISSED interrupt\n");
 		break;
 
 	case 2:	/* switch to DCON mode */
@@ -784,9 +779,9 @@ irqreturn_t dcon_interrupt(int irq, void *id)
 			dcon->switched = true;
 			getnstimeofday(&dcon->irq_time);
 			wake_up(&dcon_wait_queue);
-			printk(KERN_DEBUG "olpc-dcon: switching w/ status 0/0\n");
+			pr_debug("switching w/ status 0/0\n");
 		} else {
-			printk(KERN_DEBUG "olpc-dcon: scanline interrupt w/CPU\n");
+			pr_debug("scanline interrupt w/CPU\n");
 		}
 	}
 
diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
index c87fdfac485..77e8eb5a5ab 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
@@ -10,6 +10,9 @@
  * modify it under the terms of version 2 of the GNU General Public
  * License as published by the Free Software Foundation.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/cs5535.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
@@ -22,23 +25,23 @@ static int dcon_init_xo_1(struct dcon_priv *dcon)
 	unsigned char lob;
 
 	if (gpio_request(OLPC_GPIO_DCON_STAT0, "OLPC-DCON")) {
-		printk(KERN_ERR "olpc-dcon: failed to request STAT0 GPIO\n");
+		pr_err("failed to request STAT0 GPIO\n");
 		return -EIO;
 	}
 	if (gpio_request(OLPC_GPIO_DCON_STAT1, "OLPC-DCON")) {
-		printk(KERN_ERR "olpc-dcon: failed to request STAT1 GPIO\n");
+		pr_err("failed to request STAT1 GPIO\n");
 		goto err_gp_stat1;
 	}
 	if (gpio_request(OLPC_GPIO_DCON_IRQ, "OLPC-DCON")) {
-		printk(KERN_ERR "olpc-dcon: failed to request IRQ GPIO\n");
+		pr_err("failed to request IRQ GPIO\n");
 		goto err_gp_irq;
 	}
 	if (gpio_request(OLPC_GPIO_DCON_LOAD, "OLPC-DCON")) {
-		printk(KERN_ERR "olpc-dcon: failed to request LOAD GPIO\n");
+		pr_err("failed to request LOAD GPIO\n");
 		goto err_gp_load;
 	}
 	if (gpio_request(OLPC_GPIO_DCON_BLANK, "OLPC-DCON")) {
-		printk(KERN_ERR "olpc-dcon: failed to request BLANK GPIO\n");
+		pr_err("failed to request BLANK GPIO\n");
 		goto err_gp_blank;
 	}
 
@@ -83,7 +86,7 @@ static int dcon_init_xo_1(struct dcon_priv *dcon)
 
 	/* Register the interrupt handler */
 	if (request_irq(DCON_IRQ, &dcon_interrupt, 0, "DCON", dcon)) {
-		printk(KERN_ERR "olpc-dcon: failed to request DCON's irq\n");
+		pr_err("failed to request DCON's irq\n");
 		goto err_req_irq;
 	}
 
diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
index 69415eec425..352dd3db013 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
@@ -6,6 +6,8 @@
  * License as published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/acpi.h>
 #include <linux/delay.h>
 #include <linux/pci.h>
@@ -66,7 +68,7 @@ static int dcon_init_xo_1_5(struct dcon_priv *dcon)
 	pdev = pci_get_device(PCI_VENDOR_ID_VIA,
 			      PCI_DEVICE_ID_VIA_VX855, NULL);
 	if (!pdev) {
-		printk(KERN_ERR "cannot find VX855 PCI ID\n");
+		pr_err("cannot find VX855 PCI ID\n");
 		return 1;
 	}
 
@@ -104,7 +106,7 @@ static int dcon_init_xo_1_5(struct dcon_priv *dcon)
 	/* we're sharing the IRQ with ACPI */
 	irq = acpi_gbl_FADT.sci_interrupt;
 	if (request_irq(irq, &dcon_interrupt, IRQF_SHARED, "DCON", dcon)) {
-		printk(KERN_ERR PREFIX "DCON (IRQ%d) allocation failed\n", irq);
+		pr_err("DCON (IRQ%d) allocation failed\n", irq);
 		return 1;
 	}
 
diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index c556abb63a1..368a2e19b2d 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -157,7 +157,7 @@ static int temp_to_adc_conversion(long temp, struct omap_bandgap *bg_ptr, int i,
 	high = ts_data->adc_end_val - ts_data->adc_start_val;
 	mid = (high + low) / 2;
 
-	if (temp < bg_ptr->conv_table[high] || temp > bg_ptr->conv_table[high])
+	if (temp < bg_ptr->conv_table[low] || temp > bg_ptr->conv_table[high])
 		return -EINVAL;
 
 	while (low < high) {
@@ -953,12 +953,12 @@ int __devinit omap_bandgap_probe(struct platform_device *pdev)
 	for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
 		char *domain;
 
+		if (bg_ptr->conf->sensors[i].register_cooling)
+			bg_ptr->conf->sensors[i].register_cooling(bg_ptr, i);
+
 		domain = bg_ptr->conf->sensors[i].domain;
 		if (bg_ptr->conf->expose_sensor)
 			bg_ptr->conf->expose_sensor(bg_ptr, i, domain);
-
-		if (bg_ptr->conf->sensors[i].register_cooling)
-			bg_ptr->conf->sensors[i].register_cooling(bg_ptr, i);
 	}
 
 	/*
@@ -1037,20 +1037,20 @@ static int omap_bandgap_save_ctxt(struct omap_bandgap *bg_ptr)
 
 		if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
 			rval->bg_mode_ctrl = omap_bandgap_readl(bg_ptr,
-								tsr->bgap_mode_ctrl);
+							tsr->bgap_mode_ctrl);
 		if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
 			rval->bg_counter = omap_bandgap_readl(bg_ptr,
-							      tsr->bgap_counter);
+							tsr->bgap_counter);
 		if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
 			rval->bg_threshold = omap_bandgap_readl(bg_ptr,
-								tsr->bgap_threshold);
+							tsr->bgap_threshold);
 			rval->bg_ctrl = omap_bandgap_readl(bg_ptr,
-							   tsr->bgap_mask_ctrl);
+						   tsr->bgap_mask_ctrl);
 		}
 
 		if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG))
 			rval->tshut_threshold = omap_bandgap_readl(bg_ptr,
-								   tsr->tshut_threshold);
+						   tsr->tshut_threshold);
 	}
 
 	return 0;
@@ -1074,8 +1074,9 @@ static int omap_bandgap_restore_ctxt(struct omap_bandgap *bg_ptr)
 
 		if (val == 0) {
 			if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG))
-				omap_bandgap_writel(bg_ptr, rval->tshut_threshold,
-							   tsr->tshut_threshold);
+				omap_bandgap_writel(bg_ptr,
+					rval->tshut_threshold,
+						   tsr->tshut_threshold);
 			/* Force immediate temperature measurement and update
 			 * of the DTEMP field
 			 */
diff --git a/drivers/staging/omap-thermal/omap-thermal-common.c b/drivers/staging/omap-thermal/omap-thermal-common.c
index 0675a5e2f7c..46ee0a9f49d 100644
--- a/drivers/staging/omap-thermal/omap-thermal-common.c
+++ b/drivers/staging/omap-thermal/omap-thermal-common.c
@@ -77,10 +77,16 @@ static inline int omap_thermal_get_temp(struct thermal_zone_device *thermal,
 					 unsigned long *temp)
 {
 	struct omap_thermal_data *data = thermal->devdata;
-	struct omap_bandgap *bg_ptr = data->bg_ptr;
-	struct omap_temp_sensor *s = &bg_ptr->conf->sensors[data->sensor_id];
+	struct omap_bandgap *bg_ptr;
+	struct omap_temp_sensor *s;
 	int ret, tmp, pcb_temp, slope, constant;
 
+	if (!data)
+		return 0;
+
+	bg_ptr = data->bg_ptr;
+	s = &bg_ptr->conf->sensors[data->sensor_id];
+
 	ret = omap_bandgap_read_temperature(bg_ptr, data->sensor_id, &tmp);
 	if (ret)
 		return ret;
@@ -227,26 +233,44 @@ static struct thermal_zone_device_ops omap_thermal_ops = {
 	.get_crit_temp = omap_thermal_get_crit_temp,
 };
 
-int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id,
-			       char *domain)
+static struct omap_thermal_data
+*omap_thermal_build_data(struct omap_bandgap *bg_ptr, int id)
 {
 	struct omap_thermal_data *data;
 
 	data = devm_kzalloc(bg_ptr->dev, sizeof(*data), GFP_KERNEL);
 	if (!data) {
 		dev_err(bg_ptr->dev, "kzalloc fail\n");
-		return -ENOMEM;
+		return NULL;
 	}
 	data->sensor_id = id;
 	data->bg_ptr = bg_ptr;
 	data->mode = THERMAL_DEVICE_ENABLED;
 	INIT_WORK(&data->thermal_wq, omap_thermal_work);
 
+	return data;
+}
+
+int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id,
+			       char *domain)
+{
+	struct omap_thermal_pdata pdata;
+
+	data = omap_bandgap_get_sensor_data(bg_ptr, id);
+
+	if (!data)
+		data = omap_thermal_build_pdata(bg_ptr, id);
+
+	if (!data)
+		return -EINVAL;
+
 	/* TODO: remove TC1 TC2 */
 	/* Create thermal zone */
 	data->omap_thermal = thermal_zone_device_register(domain,
 				OMAP_TRIP_NUMBER, 0, data, &omap_thermal_ops,
-				0, FAST_TEMP_MONITORING_RATE, 0, 0);
+				1, 2, /*TODO: remove this when FW allows */
+				FAST_TEMP_MONITORING_RATE,
+				FAST_TEMP_MONITORING_RATE);
 	if (IS_ERR_OR_NULL(data->omap_thermal)) {
 		dev_err(bg_ptr->dev, "thermal zone device is NULL\n");
 		return PTR_ERR(data->omap_thermal);
@@ -333,6 +357,11 @@ int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id)
 	int tab_size, ret;
 
 	data = omap_bandgap_get_sensor_data(bg_ptr, id);
+	if (!data)
+		data = omap_thermal_build_pdata(bg_ptr, id);
+
+	if (!data)
+		return -EINVAL;
 
 	ret = omap_thermal_build_cpufreq_clip(bg_ptr, &tab_ptr, &tab_size);
 	if (ret < 0) {
@@ -349,6 +378,7 @@ int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id)
 		return PTR_ERR(data->cool_dev);
 	}
 	bg_ptr->conf->sensors[id].cooling_data.freq_clip_count = tab_size;
+	omap_bandgap_set_sensor_data(bg_ptr, id, data);
 
 	return 0;
 }
diff --git a/drivers/staging/omap-thermal/omap4-thermal.c b/drivers/staging/omap-thermal/omap4-thermal.c
index fa9dbcd7183..04c02b6c007 100644
--- a/drivers/staging/omap-thermal/omap4-thermal.c
+++ b/drivers/staging/omap-thermal/omap4-thermal.c
@@ -77,15 +77,15 @@ const struct omap_bandgap_data omap4430_data = {
 	.remove_sensor = omap_thermal_remove_sensor,
 	.sensors = {
 		{
-			.registers = &omap4430_mpu_temp_sensor_registers,
-			.ts_data = &omap4430_mpu_temp_sensor_data,
-			.domain = "cpu",
-			.slope = 0,
-			.constant = 20000,
-			.slope_pcb = 0,
-			.constant_pcb = 20000,
-			.register_cooling = omap_thermal_register_cpu_cooling,
-			.unregister_cooling = omap_thermal_unregister_cpu_cooling,
+		.registers = &omap4430_mpu_temp_sensor_registers,
+		.ts_data = &omap4430_mpu_temp_sensor_data,
+		.domain = "cpu",
+		.slope = 0,
+		.constant = 20000,
+		.slope_pcb = 0,
+		.constant_pcb = 20000,
+		.register_cooling = omap_thermal_register_cpu_cooling,
+		.unregister_cooling = omap_thermal_unregister_cpu_cooling,
 		},
 	},
 	.sensor_count = 1,
@@ -215,15 +215,15 @@ const struct omap_bandgap_data omap4460_data = {
 	.remove_sensor = omap_thermal_remove_sensor,
 	.sensors = {
 		{
-			.registers = &omap4460_mpu_temp_sensor_registers,
-			.ts_data = &omap4460_mpu_temp_sensor_data,
-			.domain = "cpu",
-			.slope = OMAP_GRADIENT_SLOPE_4460,
-			.constant = OMAP_GRADIENT_CONST_4460,
-			.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
-			.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
-			.register_cooling = omap_thermal_register_cpu_cooling,
-			.unregister_cooling = omap_thermal_unregister_cpu_cooling,
+		.registers = &omap4460_mpu_temp_sensor_registers,
+		.ts_data = &omap4460_mpu_temp_sensor_data,
+		.domain = "cpu",
+		.slope = OMAP_GRADIENT_SLOPE_4460,
+		.constant = OMAP_GRADIENT_CONST_4460,
+		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
+		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
+		.register_cooling = omap_thermal_register_cpu_cooling,
+		.unregister_cooling = omap_thermal_unregister_cpu_cooling,
 		},
 	},
 	.sensor_count = 1,
@@ -244,15 +244,15 @@ const struct omap_bandgap_data omap4470_data = {
 	.remove_sensor = omap_thermal_remove_sensor,
 	.sensors = {
 		{
-			.registers = &omap4460_mpu_temp_sensor_registers,
-			.ts_data = &omap4460_mpu_temp_sensor_data,
-			.domain = "cpu",
-			.slope = OMAP_GRADIENT_SLOPE_4470,
-			.constant = OMAP_GRADIENT_CONST_4470,
-			.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
-			.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
-			.register_cooling = omap_thermal_register_cpu_cooling,
-			.unregister_cooling = omap_thermal_unregister_cpu_cooling,
+		.registers = &omap4460_mpu_temp_sensor_registers,
+		.ts_data = &omap4460_mpu_temp_sensor_data,
+		.domain = "cpu",
+		.slope = OMAP_GRADIENT_SLOPE_4470,
+		.constant = OMAP_GRADIENT_CONST_4470,
+		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
+		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
+		.register_cooling = omap_thermal_register_cpu_cooling,
+		.unregister_cooling = omap_thermal_unregister_cpu_cooling,
 		},
 	},
 	.sensor_count = 1,
diff --git a/drivers/staging/omap-thermal/omap5-thermal.c b/drivers/staging/omap-thermal/omap5-thermal.c
index 0658af24a5c..2f3a498dacd 100644
--- a/drivers/staging/omap-thermal/omap5-thermal.c
+++ b/drivers/staging/omap-thermal/omap5-thermal.c
@@ -268,29 +268,29 @@ const struct omap_bandgap_data omap5430_data = {
 	.remove_sensor = omap_thermal_remove_sensor,
 	.sensors = {
 		{
-			.registers = &omap5430_mpu_temp_sensor_registers,
-			.ts_data = &omap5430_mpu_temp_sensor_data,
-			.domain = "cpu",
-			.register_cooling = omap_thermal_register_cpu_cooling,
-			.unregister_cooling = omap_thermal_unregister_cpu_cooling,
-			.slope = OMAP_GRADIENT_SLOPE_5430_CPU,
-			.constant = OMAP_GRADIENT_CONST_5430_CPU,
-			.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU,
-			.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU,
+		.registers = &omap5430_mpu_temp_sensor_registers,
+		.ts_data = &omap5430_mpu_temp_sensor_data,
+		.domain = "cpu",
+		.register_cooling = omap_thermal_register_cpu_cooling,
+		.unregister_cooling = omap_thermal_unregister_cpu_cooling,
+		.slope = OMAP_GRADIENT_SLOPE_5430_CPU,
+		.constant = OMAP_GRADIENT_CONST_5430_CPU,
+		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU,
+		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU,
 		},
 		{
-			.registers = &omap5430_gpu_temp_sensor_registers,
-			.ts_data = &omap5430_gpu_temp_sensor_data,
-			.domain = "gpu",
-			.slope = OMAP_GRADIENT_SLOPE_5430_GPU,
-			.constant = OMAP_GRADIENT_CONST_5430_GPU,
-			.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU,
-			.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU,
+		.registers = &omap5430_gpu_temp_sensor_registers,
+		.ts_data = &omap5430_gpu_temp_sensor_data,
+		.domain = "gpu",
+		.slope = OMAP_GRADIENT_SLOPE_5430_GPU,
+		.constant = OMAP_GRADIENT_CONST_5430_GPU,
+		.slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU,
+		.constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU,
 		},
 		{
-			.registers = &omap5430_core_temp_sensor_registers,
-			.ts_data = &omap5430_core_temp_sensor_data,
-			.domain = "core",
+		.registers = &omap5430_core_temp_sensor_registers,
+		.ts_data = &omap5430_core_temp_sensor_data,
+		.domain = "core",
 		},
 	},
 	.sensor_count = 3,
diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c
index 5e2856c0e0b..55e9c865585 100644
--- a/drivers/staging/omapdrm/omap_connector.c
+++ b/drivers/staging/omapdrm/omap_connector.c
@@ -48,13 +48,20 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode,
 	mode->vsync_end = mode->vsync_start + timings->vsw;
 	mode->vtotal = mode->vsync_end + timings->vbp;
 
-	/* note: whether or not it is interlaced, +/- h/vsync, etc,
-	 * which should be set in the mode flags, is not exposed in
-	 * the omap_video_timings struct.. but hdmi driver tracks
-	 * those separately so all we have to have to set the mode
-	 * is the way to recover these timings values, and the
-	 * omap_dss_driver would do the rest.
-	 */
+	mode->flags = 0;
+
+	if (timings->interlace)
+		mode->flags |= DRM_MODE_FLAG_INTERLACE;
+
+	if (timings->hsync_level == OMAPDSS_SIG_ACTIVE_HIGH)
+		mode->flags |= DRM_MODE_FLAG_PHSYNC;
+	else
+		mode->flags |= DRM_MODE_FLAG_NHSYNC;
+
+	if (timings->vsync_level == OMAPDSS_SIG_ACTIVE_HIGH)
+		mode->flags |= DRM_MODE_FLAG_PVSYNC;
+	else
+		mode->flags |= DRM_MODE_FLAG_NVSYNC;
 }
 
 static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings,
@@ -71,6 +78,22 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings,
 	timings->vfp = mode->vsync_start - mode->vdisplay;
 	timings->vsw = mode->vsync_end - mode->vsync_start;
 	timings->vbp = mode->vtotal - mode->vsync_end;
+
+	timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
+
+	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
+		timings->hsync_level = OMAPDSS_SIG_ACTIVE_HIGH;
+	else
+		timings->hsync_level = OMAPDSS_SIG_ACTIVE_LOW;
+
+	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
+		timings->vsync_level = OMAPDSS_SIG_ACTIVE_HIGH;
+	else
+		timings->vsync_level = OMAPDSS_SIG_ACTIVE_LOW;
+
+	timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
+	timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
+	timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES;
 }
 
 static void omap_connector_dpms(struct drm_connector *connector, int mode)
@@ -187,7 +210,7 @@ static int omap_connector_get_modes(struct drm_connector *connector)
 		}
 	} else {
 		struct drm_display_mode *mode = drm_mode_create(dev);
-		struct omap_video_timings timings;
+		struct omap_video_timings timings = {0};
 
 		dssdrv->get_timings(dssdev, &timings);
 
@@ -291,7 +314,7 @@ void omap_connector_mode_set(struct drm_connector *connector,
 	struct omap_connector *omap_connector = to_omap_connector(connector);
 	struct omap_dss_device *dssdev = omap_connector->dssdev;
 	struct omap_dss_driver *dssdrv = dssdev->driver;
-	struct omap_video_timings timings;
+	struct omap_video_timings timings = {0};
 
 	copy_timings_drm_to_omap(&timings, mode);
 
diff --git a/drivers/staging/omapdrm/omap_crtc.c b/drivers/staging/omapdrm/omap_crtc.c
index 62e0022561b..732f2ad3403 100644
--- a/drivers/staging/omapdrm/omap_crtc.c
+++ b/drivers/staging/omapdrm/omap_crtc.c
@@ -155,6 +155,7 @@ static void page_flip_cb(void *arg)
 	struct drm_crtc *crtc = arg;
 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
 	struct drm_framebuffer *old_fb = omap_crtc->old_fb;
+	struct drm_gem_object *bo;
 
 	omap_crtc->old_fb = NULL;
 
@@ -165,6 +166,9 @@ static void page_flip_cb(void *arg)
 	 * cycle.. for now go for correctness and later figure out speed..
 	 */
 	omap_plane_on_endwin(omap_crtc->plane, vblank_cb, crtc);
+
+	bo = omap_framebuffer_bo(crtc->fb, 0);
+	drm_gem_object_unreference_unlocked(bo);
 }
 
 static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
@@ -173,6 +177,7 @@ static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
 {
 	struct drm_device *dev = crtc->dev;
 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	struct drm_gem_object *bo;
 
 	DBG("%d -> %d", crtc->fb ? crtc->fb->base.id : -1, fb->base.id);
 
@@ -185,16 +190,38 @@ static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
 	omap_crtc->event = event;
 	crtc->fb = fb;
 
-	omap_gem_op_async(omap_framebuffer_bo(fb, 0), OMAP_GEM_READ,
-			page_flip_cb, crtc);
+	/*
+	 * Hold a reference temporarily until the crtc is updated
+	 * and takes the reference to the bo.  This avoids it
+	 * getting freed from under us:
+	 */
+	bo = omap_framebuffer_bo(fb, 0);
+	drm_gem_object_reference(bo);
+
+	omap_gem_op_async(bo, OMAP_GEM_READ, page_flip_cb, crtc);
 
 	return 0;
 }
 
+static int omap_crtc_set_property(struct drm_crtc *crtc,
+		struct drm_property *property, uint64_t val)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	struct omap_drm_private *priv = crtc->dev->dev_private;
+
+	if (property == priv->rotation_prop) {
+		crtc->invert_dimensions =
+				!!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270)));
+	}
+
+	return omap_plane_set_property(omap_crtc->plane, property, val);
+}
+
 static const struct drm_crtc_funcs omap_crtc_funcs = {
 	.set_config = drm_crtc_helper_set_config,
 	.destroy = omap_crtc_destroy,
 	.page_flip = omap_crtc_page_flip_locked,
+	.set_property = omap_crtc_set_property,
 };
 
 static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = {
@@ -231,6 +258,8 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev,
 	drm_crtc_init(dev, crtc, &omap_crtc_funcs);
 	drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs);
 
+	omap_plane_install_properties(omap_crtc->plane, &crtc->base);
+
 	return crtc;
 
 fail:
diff --git a/drivers/staging/omapdrm/omap_dmm_tiler.c b/drivers/staging/omapdrm/omap_dmm_tiler.c
index 86197831f63..3ae39554df1 100644
--- a/drivers/staging/omapdrm/omap_dmm_tiler.c
+++ b/drivers/staging/omapdrm/omap_dmm_tiler.c
@@ -120,7 +120,7 @@ static int wait_status(struct refill_engine *engine, uint32_t wait_mask)
 	return 0;
 }
 
-irqreturn_t omap_dmm_irq_handler(int irq, void *arg)
+static irqreturn_t omap_dmm_irq_handler(int irq, void *arg)
 {
 	struct dmm *dmm = arg;
 	uint32_t status = readl(dmm->base + DMM_PAT_IRQSTATUS);
@@ -367,7 +367,7 @@ struct tiler_block *tiler_reserve_1d(size_t size)
 	int num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
 	if (!block)
-		return 0;
+		return ERR_PTR(-ENOMEM);
 
 	block->fmt = TILFMT_PAGE;
 
@@ -404,8 +404,26 @@ int tiler_release(struct tiler_block *block)
  * Utils
  */
 
-/* calculate the tiler space address of a pixel in a view orientation */
-static u32 tiler_get_address(u32 orient, enum tiler_fmt fmt, u32 x, u32 y)
+/* calculate the tiler space address of a pixel in a view orientation...
+ * below description copied from the display subsystem section of TRM:
+ *
+ * When the TILER is addressed, the bits:
+ *   [28:27] = 0x0 for 8-bit tiled
+ *             0x1 for 16-bit tiled
+ *             0x2 for 32-bit tiled
+ *             0x3 for page mode
+ *   [31:29] = 0x0 for 0-degree view
+ *             0x1 for 180-degree view + mirroring
+ *             0x2 for 0-degree view + mirroring
+ *             0x3 for 180-degree view
+ *             0x4 for 270-degree view + mirroring
+ *             0x5 for 270-degree view
+ *             0x6 for 90-degree view
+ *             0x7 for 90-degree view + mirroring
+ * Otherwise the bits indicated the corresponding bit address to access
+ * the SDRAM.
+ */
+static u32 tiler_get_address(enum tiler_fmt fmt, u32 orient, u32 x, u32 y)
 {
 	u32 x_bits, y_bits, tmp, x_mask, y_mask, alignment;
 
@@ -417,8 +435,11 @@ static u32 tiler_get_address(u32 orient, enum tiler_fmt fmt, u32 x, u32 y)
 	x_mask = MASK(x_bits);
 	y_mask = MASK(y_bits);
 
-	if (x < 0 || x > x_mask || y < 0 || y > y_mask)
+	if (x < 0 || x > x_mask || y < 0 || y > y_mask) {
+		DBG("invalid coords: %u < 0 || %u > %u || %u < 0 || %u > %u",
+				x, x, x_mask, y, y, y_mask);
 		return 0;
+	}
 
 	/* account for mirroring */
 	if (orient & MASK_X_INVERT)
@@ -439,11 +460,22 @@ dma_addr_t tiler_ssptr(struct tiler_block *block)
 {
 	BUG_ON(!validfmt(block->fmt));
 
-	return TILVIEW_8BIT + tiler_get_address(0, block->fmt,
+	return TILVIEW_8BIT + tiler_get_address(block->fmt, 0,
 			block->area.p0.x * geom[block->fmt].slot_w,
 			block->area.p0.y * geom[block->fmt].slot_h);
 }
 
+dma_addr_t tiler_tsptr(struct tiler_block *block, uint32_t orient,
+		uint32_t x, uint32_t y)
+{
+	struct tcm_pt *p = &block->area.p0;
+	BUG_ON(!validfmt(block->fmt));
+
+	return tiler_get_address(block->fmt, orient,
+			(p->x * geom[block->fmt].slot_w) + x,
+			(p->y * geom[block->fmt].slot_h) + y);
+}
+
 void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h)
 {
 	BUG_ON(!validfmt(fmt));
@@ -451,11 +483,14 @@ void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h)
 	*h = round_up(*h, geom[fmt].slot_h);
 }
 
-uint32_t tiler_stride(enum tiler_fmt fmt)
+uint32_t tiler_stride(enum tiler_fmt fmt, uint32_t orient)
 {
 	BUG_ON(!validfmt(fmt));
 
-	return 1 << (CONT_WIDTH_BITS + geom[fmt].y_shft);
+	if (orient & MASK_XY_FLIP)
+		return 1 << (CONT_HEIGHT_BITS + geom[fmt].x_shft);
+	else
+		return 1 << (CONT_WIDTH_BITS + geom[fmt].y_shft);
 }
 
 size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h)
diff --git a/drivers/staging/omapdrm/omap_dmm_tiler.h b/drivers/staging/omapdrm/omap_dmm_tiler.h
index 7b1052a329e..740911df5fc 100644
--- a/drivers/staging/omapdrm/omap_dmm_tiler.h
+++ b/drivers/staging/omapdrm/omap_dmm_tiler.h
@@ -54,7 +54,18 @@ struct tiler_block {
 #define TILER_WIDTH             (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))
 #define TILER_HEIGHT            (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS))
 
-/* tiler space addressing bitfields */
+/*
+Table 15-11. Coding and Description of TILER Orientations
+S Y X	Description				Alternate description
+0 0 0	0-degree view				Natural view
+0 0 1	0-degree view with vertical mirror 	180-degree view with horizontal mirror
+0 1 0	0-degree view with horizontal mirror 	180-degree view with vertical mirror
+0 1 1	180-degree view
+1 0 0	90-degree view with vertical mirror	270-degree view with horizontal mirror
+1 0 1	270-degree view
+1 1 0	90-degree view
+1 1 1	90-degree view with horizontal mirror	270-degree view with vertical mirror
+ */
 #define MASK_XY_FLIP		(1 << 31)
 #define MASK_Y_INVERT		(1 << 30)
 #define MASK_X_INVERT		(1 << 29)
@@ -90,7 +101,9 @@ int tiler_release(struct tiler_block *block);
 
 /* utilities */
 dma_addr_t tiler_ssptr(struct tiler_block *block);
-uint32_t tiler_stride(enum tiler_fmt fmt);
+dma_addr_t tiler_tsptr(struct tiler_block *block, uint32_t orient,
+		uint32_t x, uint32_t y);
+uint32_t tiler_stride(enum tiler_fmt fmt, uint32_t orient);
 size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h);
 size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h);
 void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h);
diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c
index 4beab9447ce..2ec5264dd00 100644
--- a/drivers/staging/omapdrm/omap_drv.c
+++ b/drivers/staging/omapdrm/omap_drv.c
@@ -571,8 +571,7 @@ static int dev_load(struct drm_device *dev, unsigned long flags)
 
 	dev->dev_private = priv;
 
-	priv->wq = alloc_workqueue("omapdrm",
-			WQ_UNBOUND | WQ_NON_REENTRANT, 1);
+	priv->wq = alloc_ordered_workqueue("omapdrm", 0);
 
 	INIT_LIST_HEAD(&priv->obj_list);
 
@@ -649,6 +648,8 @@ static int dev_firstopen(struct drm_device *dev)
  */
 static void dev_lastclose(struct drm_device *dev)
 {
+	int i;
+
 	/* we don't support vga-switcheroo.. so just make sure the fbdev
 	 * mode is active
 	 */
@@ -657,6 +658,21 @@ static void dev_lastclose(struct drm_device *dev)
 
 	DBG("lastclose: dev=%p", dev);
 
+	/* need to restore default rotation state.. not sure if there is
+	 * a cleaner way to restore properties to default state?  Maybe
+	 * a flag that properties should automatically be restored to
+	 * default state on lastclose?
+	 */
+	for (i = 0; i < priv->num_crtcs; i++) {
+		drm_object_property_set_value(&priv->crtcs[i]->base,
+				priv->rotation_prop, 0);
+	}
+
+	for (i = 0; i < priv->num_planes; i++) {
+		drm_object_property_set_value(&priv->planes[i]->base,
+				priv->rotation_prop, 0);
+	}
+
 	ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev);
 	if (ret)
 		DBG("failed to restore crtc mode");
@@ -761,7 +777,6 @@ static struct drm_driver omap_drm_driver = {
 		.irq_postinstall = dev_irq_postinstall,
 		.irq_uninstall = dev_irq_uninstall,
 		.irq_handler = dev_irq_handler,
-		.reclaim_buffers = drm_core_reclaim_buffers,
 #ifdef CONFIG_DEBUG_FS
 		.debugfs_init = omap_debugfs_init,
 		.debugfs_cleanup = omap_debugfs_cleanup,
diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h
index 2092a9167d2..9dc72d143ff 100644
--- a/drivers/staging/omapdrm/omap_drv.h
+++ b/drivers/staging/omapdrm/omap_drv.h
@@ -59,6 +59,27 @@ struct omap_drm_private {
 	struct list_head obj_list;
 
 	bool has_dmm;
+
+	/* properties: */
+	struct drm_property *rotation_prop;
+	struct drm_property *zorder_prop;
+};
+
+/* this should probably be in drm-core to standardize amongst drivers */
+#define DRM_ROTATE_0	0
+#define DRM_ROTATE_90	1
+#define DRM_ROTATE_180	2
+#define DRM_ROTATE_270	3
+#define DRM_REFLECT_X	4
+#define DRM_REFLECT_Y	5
+
+/* parameters which describe (unrotated) coordinates of scanout within a fb: */
+struct omap_drm_window {
+	uint32_t rotation;
+	int32_t  crtc_x, crtc_y;		/* signed because can be offscreen */
+	uint32_t crtc_w, crtc_h;
+	uint32_t src_x, src_y;
+	uint32_t src_w, src_h;
 };
 
 #ifdef CONFIG_DEBUG_FS
@@ -87,6 +108,10 @@ int omap_plane_mode_set(struct drm_plane *plane,
 		uint32_t src_w, uint32_t src_h);
 void omap_plane_on_endwin(struct drm_plane *plane,
 		void (*fxn)(void *), void *arg);
+void omap_plane_install_properties(struct drm_plane *plane,
+		struct drm_mode_object *obj);
+int omap_plane_set_property(struct drm_plane *plane,
+		struct drm_property *property, uint64_t val);
 
 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
 		struct omap_overlay_manager *mgr);
@@ -114,8 +139,8 @@ struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
 int omap_framebuffer_replace(struct drm_framebuffer *a,
 		struct drm_framebuffer *b, void *arg,
 		void (*unpin)(void *arg, struct drm_gem_object *bo));
-void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, int x, int y,
-		struct omap_overlay_info *info);
+void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
+		struct omap_drm_window *win, struct omap_overlay_info *info);
 struct drm_connector *omap_framebuffer_get_next_connector(
 		struct drm_framebuffer *fb, struct drm_connector *from);
 void omap_framebuffer_flush(struct drm_framebuffer *fb,
@@ -157,8 +182,12 @@ int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
 		bool remap);
 int omap_gem_put_pages(struct drm_gem_object *obj);
 uint32_t omap_gem_flags(struct drm_gem_object *obj);
+int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient,
+		int x, int y, dma_addr_t *paddr);
 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
 size_t omap_gem_mmap_size(struct drm_gem_object *obj);
+int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h);
+int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient);
 
 struct dma_buf * omap_gem_prime_export(struct drm_device *dev,
 		struct drm_gem_object *obj, int flags);
diff --git a/drivers/staging/omapdrm/omap_fb.c b/drivers/staging/omapdrm/omap_fb.c
index 74260f043ab..446801d6300 100644
--- a/drivers/staging/omapdrm/omap_fb.c
+++ b/drivers/staging/omapdrm/omap_fb.c
@@ -18,6 +18,7 @@
  */
 
 #include "omap_drv.h"
+#include "omap_dmm_tiler.h"
 
 #include "drm_crtc.h"
 #include "drm_crtc_helper.h"
@@ -137,30 +138,100 @@ static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
 	.dirty = omap_framebuffer_dirty,
 };
 
+static uint32_t get_linear_addr(struct plane *plane,
+		const struct format *format, int n, int x, int y)
+{
+	uint32_t offset;
+
+	offset = plane->offset +
+			(x * format->planes[n].stride_bpp) +
+			(y * plane->pitch / format->planes[n].sub_y);
+
+	return plane->paddr + offset;
+}
+
 /* update ovl info for scanout, handles cases of multi-planar fb's, etc.
  */
-void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, int x, int y,
-		struct omap_overlay_info *info)
+void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
+		struct omap_drm_window *win, struct omap_overlay_info *info)
 {
 	struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
 	const struct format *format = omap_fb->format;
 	struct plane *plane = &omap_fb->planes[0];
-	unsigned int offset;
+	uint32_t x, y, orient = 0;
+
+	info->color_mode = format->dss_format;
+
+	info->pos_x      = win->crtc_x;
+	info->pos_y      = win->crtc_y;
+	info->out_width  = win->crtc_w;
+	info->out_height = win->crtc_h;
+	info->width      = win->src_w;
+	info->height     = win->src_h;
+
+	x = win->src_x;
+	y = win->src_y;
+
+	if (omap_gem_flags(plane->bo) & OMAP_BO_TILED) {
+		uint32_t w = win->src_w;
+		uint32_t h = win->src_h;
+
+		switch (win->rotation & 0xf) {
+		default:
+			dev_err(fb->dev->dev, "invalid rotation: %02x",
+					(uint32_t)win->rotation);
+			/* fallthru to default to no rotation */
+		case 0:
+		case BIT(DRM_ROTATE_0):
+			orient = 0;
+			break;
+		case BIT(DRM_ROTATE_90):
+			orient = MASK_XY_FLIP | MASK_X_INVERT;
+			break;
+		case BIT(DRM_ROTATE_180):
+			orient = MASK_X_INVERT | MASK_Y_INVERT;
+			break;
+		case BIT(DRM_ROTATE_270):
+			orient = MASK_XY_FLIP | MASK_Y_INVERT;
+			break;
+		}
 
-	offset = plane->offset +
-			(x * format->planes[0].stride_bpp) +
-			(y * plane->pitch / format->planes[0].sub_y);
+		if (win->rotation & BIT(DRM_REFLECT_X))
+			orient ^= MASK_X_INVERT;
+
+		if (win->rotation & BIT(DRM_REFLECT_Y))
+			orient ^= MASK_Y_INVERT;
+
+		/* adjust x,y offset for flip/invert: */
+		if (orient & MASK_XY_FLIP)
+			swap(w, h);
+		if (orient & MASK_Y_INVERT)
+			y += h - 1;
+		if (orient & MASK_X_INVERT)
+			x += w - 1;
 
-	info->color_mode   = format->dss_format;
-	info->paddr        = plane->paddr + offset;
-	info->screen_width = plane->pitch / format->planes[0].stride_bpp;
+		omap_gem_rotated_paddr(plane->bo, orient, x, y, &info->paddr);
+		info->rotation_type = OMAP_DSS_ROT_TILER;
+		info->screen_width  = omap_gem_tiled_stride(plane->bo, orient);
+	} else {
+		info->paddr         = get_linear_addr(plane, format, 0, x, y);
+		info->rotation_type = OMAP_DSS_ROT_DMA;
+		info->screen_width  = plane->pitch;
+	}
+
+	/* convert to pixels: */
+	info->screen_width /= format->planes[0].stride_bpp;
 
 	if (format->dss_format == OMAP_DSS_COLOR_NV12) {
 		plane = &omap_fb->planes[1];
-		offset = plane->offset +
-				(x * format->planes[1].stride_bpp) +
-				(y * plane->pitch / format->planes[1].sub_y);
-		info->p_uv_addr = plane->paddr + offset;
+
+		if (info->rotation_type == OMAP_DSS_ROT_TILER) {
+			WARN_ON(!(omap_gem_flags(plane->bo) & OMAP_BO_TILED));
+			omap_gem_rotated_paddr(plane->bo, orient,
+					x/2, y/2, &info->p_uv_addr);
+		} else {
+			info->p_uv_addr = get_linear_addr(plane, format, 1, x, y);
+		}
 	} else {
 		info->p_uv_addr = 0;
 	}
@@ -377,7 +448,7 @@ struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
 
 		size = pitch * mode_cmd->height / format->planes[i].sub_y;
 
-		if (size > (bos[i]->size - mode_cmd->offsets[i])) {
+		if (size > (omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i])) {
 			dev_err(dev->dev, "provided buffer object is too small! %d < %d\n",
 					bos[i]->size - mode_cmd->offsets[i], size);
 			ret = -EINVAL;
diff --git a/drivers/staging/omapdrm/omap_gem.c b/drivers/staging/omapdrm/omap_gem.c
index 3a0d035a9e0..3434e6ec014 100644
--- a/drivers/staging/omapdrm/omap_gem.c
+++ b/drivers/staging/omapdrm/omap_gem.c
@@ -226,7 +226,8 @@ static int omap_gem_attach_pages(struct drm_gem_object *obj)
 	struct drm_device *dev = obj->dev;
 	struct omap_gem_object *omap_obj = to_omap_bo(obj);
 	struct page **pages;
-	int i, npages = obj->size >> PAGE_SHIFT;
+	int npages = obj->size >> PAGE_SHIFT;
+	int i, ret;
 	dma_addr_t *addrs;
 
 	WARN_ON(omap_obj->pages);
@@ -246,18 +247,32 @@ static int omap_gem_attach_pages(struct drm_gem_object *obj)
 	 */
 	if (omap_obj->flags & (OMAP_BO_WC|OMAP_BO_UNCACHED)) {
 		addrs = kmalloc(npages * sizeof(addrs), GFP_KERNEL);
+		if (!addrs) {
+			ret = -ENOMEM;
+			goto free_pages;
+		}
+
 		for (i = 0; i < npages; i++) {
 			addrs[i] = dma_map_page(dev->dev, pages[i],
 					0, PAGE_SIZE, DMA_BIDIRECTIONAL);
 		}
 	} else {
 		addrs = kzalloc(npages * sizeof(addrs), GFP_KERNEL);
+		if (!addrs) {
+			ret = -ENOMEM;
+			goto free_pages;
+		}
 	}
 
 	omap_obj->addrs = addrs;
 	omap_obj->pages = pages;
 
 	return 0;
+
+free_pages:
+	_drm_gem_put_pages(obj, pages, true, false);
+
+	return ret;
 }
 
 /** release backing pages */
@@ -339,6 +354,17 @@ size_t omap_gem_mmap_size(struct drm_gem_object *obj)
 	return size;
 }
 
+/* get tiled size, returns -EINVAL if not tiled buffer */
+int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	if (omap_obj->flags & OMAP_BO_TILED) {
+		*w = omap_obj->width;
+		*h = omap_obj->height;
+		return 0;
+	}
+	return -EINVAL;
+}
 
 /* Normal handling for the case of faulting in non-tiled buffers */
 static int fault_1d(struct drm_gem_object *obj,
@@ -566,9 +592,8 @@ int omap_gem_mmap_obj(struct drm_gem_object *obj,
 		 * in particular in the case of mmap'd dmabufs)
 		 */
 		fput(vma->vm_file);
-		get_file(obj->filp);
 		vma->vm_pgoff = 0;
-		vma->vm_file  = obj->filp;
+		vma->vm_file  = get_file(obj->filp);
 
 		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 	}
@@ -832,6 +857,36 @@ fail:
 	return ret;
 }
 
+/* Get rotated scanout address (only valid if already pinned), at the
+ * specified orientation and x,y offset from top-left corner of buffer
+ * (only valid for tiled 2d buffers)
+ */
+int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient,
+		int x, int y, dma_addr_t *paddr)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = -EINVAL;
+
+	mutex_lock(&obj->dev->struct_mutex);
+	if ((omap_obj->paddr_cnt > 0) && omap_obj->block &&
+			(omap_obj->flags & OMAP_BO_TILED)) {
+		*paddr = tiler_tsptr(omap_obj->block, orient, x, y);
+		ret = 0;
+	}
+	mutex_unlock(&obj->dev->struct_mutex);
+	return ret;
+}
+
+/* Get tiler stride for the buffer (only valid for 2d tiled buffers) */
+int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = -EINVAL;
+	if (omap_obj->flags & OMAP_BO_TILED)
+		ret = tiler_stride(gem2fmt(omap_obj->flags), orient);
+	return ret;
+}
+
 /* acquire pages when needed (for example, for DMA where physically
  * contiguous buffer is not required
  */
@@ -1402,7 +1457,7 @@ void omap_gem_init(struct drm_device *dev)
 		 */
 		usergart[i].height = h;
 		usergart[i].height_shift = ilog2(h);
-		usergart[i].stride_pfn = tiler_stride(fmts[i]) >> PAGE_SHIFT;
+		usergart[i].stride_pfn = tiler_stride(fmts[i], 0) >> PAGE_SHIFT;
 		usergart[i].slot_shift = ilog2((PAGE_SIZE / h) >> i);
 		for (j = 0; j < NUM_USERGART_ENTRIES; j++) {
 			struct usergart_entry *entry = &usergart[i].entry[j];
diff --git a/drivers/staging/omapdrm/omap_plane.c b/drivers/staging/omapdrm/omap_plane.c
index 7997be74010..4bde639dd02 100644
--- a/drivers/staging/omapdrm/omap_plane.c
+++ b/drivers/staging/omapdrm/omap_plane.c
@@ -20,6 +20,7 @@
 #include <linux/kfifo.h>
 
 #include "omap_drv.h"
+#include "omap_dmm_tiler.h"
 
 /* some hackery because omapdss has an 'enum omap_plane' (which would be
  * better named omap_plane_id).. and compiler seems unhappy about having
@@ -43,10 +44,9 @@ struct omap_plane {
 	struct omap_overlay *ovl;
 	struct omap_overlay_info info;
 
-	/* Source values, converted to integers because we don't support
-	 * fractional positions:
-	 */
-	unsigned int src_x, src_y;
+	/* position/orientation of scanout within the fb: */
+	struct omap_drm_window win;
+
 
 	/* last fb that we pinned: */
 	struct drm_framebuffer *pinned_fb;
@@ -289,6 +289,7 @@ static void update_scanout(struct drm_plane *plane)
 {
 	struct omap_plane *omap_plane = to_omap_plane(plane);
 	struct omap_overlay_info *info = &omap_plane->info;
+	struct omap_drm_window *win = &omap_plane->win;
 	int ret;
 
 	ret = update_pin(plane, plane->fb);
@@ -299,11 +300,10 @@ static void update_scanout(struct drm_plane *plane)
 		return;
 	}
 
-	omap_framebuffer_update_scanout(plane->fb,
-			omap_plane->src_x, omap_plane->src_y, info);
+	omap_framebuffer_update_scanout(plane->fb, win, info);
 
 	DBG("%s: %d,%d: %08x %08x (%d)", omap_plane->ovl->name,
-			omap_plane->src_x, omap_plane->src_y,
+			win->src_x, win->src_y,
 			(u32)info->paddr, (u32)info->p_uv_addr,
 			info->screen_width);
 }
@@ -316,21 +316,18 @@ int omap_plane_mode_set(struct drm_plane *plane,
 		uint32_t src_w, uint32_t src_h)
 {
 	struct omap_plane *omap_plane = to_omap_plane(plane);
+	struct omap_drm_window *win = &omap_plane->win;
+
+	win->crtc_x = crtc_x;
+	win->crtc_y = crtc_y;
+	win->crtc_w = crtc_w;
+	win->crtc_h = crtc_h;
 
 	/* src values are in Q16 fixed point, convert to integer: */
-	src_x = src_x >> 16;
-	src_y = src_y >> 16;
-	src_w = src_w >> 16;
-	src_h = src_h >> 16;
-
-	omap_plane->info.pos_x = crtc_x;
-	omap_plane->info.pos_y = crtc_y;
-	omap_plane->info.out_width = crtc_w;
-	omap_plane->info.out_height = crtc_h;
-	omap_plane->info.width = src_w;
-	omap_plane->info.height = src_h;
-	omap_plane->src_x = src_x;
-	omap_plane->src_y = src_y;
+	win->src_x = src_x >> 16;
+	win->src_y = src_y >> 16;
+	win->src_w = src_w >> 16;
+	win->src_h = src_h >> 16;
 
 	/* note: this is done after this fxn returns.. but if we need
 	 * to do a commit/update_scanout, etc before this returns we
@@ -359,6 +356,8 @@ static int omap_plane_update(struct drm_plane *plane,
 
 static int omap_plane_disable(struct drm_plane *plane)
 {
+	struct omap_plane *omap_plane = to_omap_plane(plane);
+	omap_plane->win.rotation = BIT(DRM_ROTATE_0);
 	return omap_plane_dpms(plane, DRM_MODE_DPMS_OFF);
 }
 
@@ -409,10 +408,79 @@ void omap_plane_on_endwin(struct drm_plane *plane,
 	install_irq(plane);
 }
 
+/* helper to install properties which are common to planes and crtcs */
+void omap_plane_install_properties(struct drm_plane *plane,
+		struct drm_mode_object *obj)
+{
+	struct drm_device *dev = plane->dev;
+	struct omap_drm_private *priv = dev->dev_private;
+	struct drm_property *prop;
+
+	prop = priv->rotation_prop;
+	if (!prop) {
+		const struct drm_prop_enum_list props[] = {
+				{ DRM_ROTATE_0,   "rotate-0" },
+				{ DRM_ROTATE_90,  "rotate-90" },
+				{ DRM_ROTATE_180, "rotate-180" },
+				{ DRM_ROTATE_270, "rotate-270" },
+				{ DRM_REFLECT_X,  "reflect-x" },
+				{ DRM_REFLECT_Y,  "reflect-y" },
+		};
+		prop = drm_property_create_bitmask(dev, 0, "rotation",
+				props, ARRAY_SIZE(props));
+		if (prop == NULL)
+			return;
+		priv->rotation_prop = prop;
+	}
+	drm_object_attach_property(obj, prop, 0);
+
+        prop = priv->zorder_prop;
+        if (!prop) {
+		prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
+		if (prop == NULL)
+			return;
+		priv->zorder_prop = prop;
+	}
+	drm_object_attach_property(obj, prop, 0);
+}
+
+int omap_plane_set_property(struct drm_plane *plane,
+		struct drm_property *property, uint64_t val)
+{
+	struct omap_plane *omap_plane = to_omap_plane(plane);
+	struct omap_drm_private *priv = plane->dev->dev_private;
+	int ret = -EINVAL;
+
+	if (property == priv->rotation_prop) {
+		struct omap_overlay *ovl = omap_plane->ovl;
+
+		DBG("%s: rotation: %02x", ovl->name, (uint32_t)val);
+		omap_plane->win.rotation = val;
+
+		if (ovl->is_enabled(ovl))
+			ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON);
+		else
+			ret = 0;
+	} else if (property == priv->zorder_prop) {
+		struct omap_overlay *ovl = omap_plane->ovl;
+
+		DBG("%s: zorder: %d", ovl->name, (uint32_t)val);
+		omap_plane->info.zorder = val;
+
+		if (ovl->is_enabled(ovl))
+			ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON);
+		else
+			ret = 0;
+	}
+
+	return ret;
+}
+
 static const struct drm_plane_funcs omap_plane_funcs = {
 		.update_plane = omap_plane_update,
 		.disable_plane = omap_plane_disable,
 		.destroy = omap_plane_destroy,
+		.set_property = omap_plane_set_property,
 };
 
 /* initialize plane */
@@ -455,6 +523,8 @@ struct drm_plane *omap_plane_init(struct drm_device *dev,
 	drm_plane_init(dev, plane, possible_crtcs, &omap_plane_funcs,
 			omap_plane->formats, omap_plane->nformats, priv);
 
+	omap_plane_install_properties(plane, &plane->base);
+
 	/* get our starting configuration, set defaults for parameters
 	 * we don't currently use, etc:
 	 */
@@ -463,7 +533,6 @@ struct drm_plane *omap_plane_init(struct drm_device *dev,
 	omap_plane->info.rotation = OMAP_DSS_ROT_0;
 	omap_plane->info.global_alpha = 0xff;
 	omap_plane->info.mirror = 0;
-	omap_plane->info.mirror = 0;
 
 	/* Set defaults depending on whether we are a CRTC or overlay
 	 * layer.
diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c
index d9832194580..64913aeb0ba 100644
--- a/drivers/staging/ozwpan/ozcdev.c
+++ b/drivers/staging/ozwpan/ozcdev.c
@@ -8,6 +8,7 @@
 #include <linux/cdev.h>
 #include <linux/uaccess.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 #include <linux/poll.h>
 #include <linux/sched.h>
 #include "ozconfig.h"
@@ -103,10 +104,10 @@ ssize_t oz_cdev_read(struct file *filp, char __user *buf, size_t count,
 	if (pd)
 		oz_pd_get(pd);
 	spin_unlock_bh(&g_cdev.lock);
-	if (pd == 0)
+	if (pd == NULL)
 		return -1;
 	ctx = oz_cdev_claim_ctx(pd);
-	if (ctx == 0)
+	if (ctx == NULL)
 		goto out2;
 	n = ctx->rd_in - ctx->rd_out;
 	if (n < 0)
@@ -156,11 +157,11 @@ ssize_t oz_cdev_write(struct file *filp, const char __user *buf, size_t count,
 	if (pd)
 		oz_pd_get(pd);
 	spin_unlock_bh(&g_cdev.lock);
-	if (pd == 0)
+	if (pd == NULL)
 		return -1;
 	eb = &pd->elt_buff;
 	ei = oz_elt_info_alloc(eb);
-	if (ei == 0) {
+	if (ei == NULL) {
 		count = 0;
 		goto out;
 	}
@@ -213,7 +214,7 @@ static int oz_set_active_pd(u8 *addr)
 		if (old_pd)
 			oz_pd_put(old_pd);
 	} else {
-		if (!memcmp(addr, "\0\0\0\0\0\0", sizeof(addr))) {
+		if (is_zero_ether_addr(addr)) {
 			spin_lock_bh(&g_cdev.lock);
 			pd = g_cdev.active_pd;
 			g_cdev.active_pd = 0;
@@ -409,7 +410,7 @@ int oz_cdev_start(struct oz_pd *pd, int resume)
 		return 0;
 	}
 	ctx = kzalloc(sizeof(struct oz_serial_ctx), GFP_ATOMIC);
-	if (ctx == 0)
+	if (ctx == NULL)
 		return -ENOMEM;
 	atomic_set(&ctx->ref_count, 1);
 	ctx->tx_seq_num = 1;
@@ -423,7 +424,7 @@ int oz_cdev_start(struct oz_pd *pd, int resume)
 		spin_unlock_bh(&pd->app_lock[OZ_APPID_SERIAL-1]);
 	}
 	spin_lock(&g_cdev.lock);
-	if ((g_cdev.active_pd == 0) &&
+	if ((g_cdev.active_pd == NULL) &&
 		(memcmp(pd->mac_addr, g_cdev.active_addr, ETH_ALEN) == 0)) {
 		oz_pd_get(pd);
 		g_cdev.active_pd = pd;
@@ -476,7 +477,7 @@ void oz_cdev_rx(struct oz_pd *pd, struct oz_elt *elt)
 	int ix;
 
 	ctx = oz_cdev_claim_ctx(pd);
-	if (ctx == 0) {
+	if (ctx == NULL) {
 		oz_trace("Cannot claim serial context.\n");
 		return;
 	}
diff --git a/drivers/staging/ozwpan/ozevent.c b/drivers/staging/ozwpan/ozevent.c
index 7f66b4f19b0..a48498bd9b5 100644
--- a/drivers/staging/ozwpan/ozevent.c
+++ b/drivers/staging/ozwpan/ozevent.c
@@ -14,7 +14,7 @@
 #include "ozappif.h"
 /*------------------------------------------------------------------------------
  * Although the event mask is logically part of the oz_evtdev structure, it is
- * needed outside of this file so define it seperately to avoid the need to
+ * needed outside of this file so define it separately to avoid the need to
  * export definition of struct oz_evtdev.
  */
 u32 g_evt_mask;
@@ -39,8 +39,8 @@ static struct oz_evtdev g_evtdev;
  */
 void oz_event_init(void)
 {
-	/* Because g_evtdev is static external all fields initally zero so no
-	 * need to reinitialised those.
+	/* Because g_evtdev is static external all fields initially zero so no
+	 * need to reinitialized those.
 	 */
 	oz_trace("Event tracing initialized\n");
 	spin_lock_init(&g_evtdev.lock);
diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c
index 251f07c39a6..2e087acf157 100644
--- a/drivers/staging/ozwpan/ozhcd.c
+++ b/drivers/staging/ozwpan/ozhcd.c
@@ -417,6 +417,44 @@ static void oz_ep_free(struct oz_port *port, struct oz_endpoint *ep)
 /*------------------------------------------------------------------------------
  * Context: softirq
  */
+void oz_complete_buffered_urb(struct oz_port *port, struct oz_endpoint *ep,
+			struct urb *urb)
+{
+	u8 data_len, available_space, copy_len;
+
+	memcpy(&data_len, &ep->buffer[ep->out_ix], sizeof(u8));
+	if (data_len <= urb->transfer_buffer_length)
+		available_space = data_len;
+	else
+		available_space = urb->transfer_buffer_length;
+
+	if (++ep->out_ix == ep->buffer_size)
+		ep->out_ix = 0;
+	copy_len = ep->buffer_size - ep->out_ix;
+	if (copy_len >= available_space)
+		copy_len = available_space;
+	memcpy(urb->transfer_buffer, &ep->buffer[ep->out_ix], copy_len);
+
+	if (copy_len < available_space) {
+		memcpy((urb->transfer_buffer + copy_len), ep->buffer,
+						(available_space - copy_len));
+		ep->out_ix = available_space - copy_len;
+	} else {
+		ep->out_ix += copy_len;
+	}
+	urb->actual_length = available_space;
+	if (ep->out_ix == ep->buffer_size)
+		ep->out_ix = 0;
+
+	ep->buffered_units--;
+	oz_trace("Trying to give back buffered frame of size=%d\n",
+						available_space);
+	oz_complete_urb(port->ozhcd->hcd, urb, 0, 0);
+}
+
+/*------------------------------------------------------------------------------
+ * Context: softirq
+ */
 static int oz_enqueue_ep_urb(struct oz_port *port, u8 ep_addr, int in_dir,
 			struct urb *urb, u8 req_id)
 {
@@ -452,6 +490,18 @@ static int oz_enqueue_ep_urb(struct oz_port *port, u8 ep_addr, int in_dir,
 		ep = port->in_ep[ep_addr];
 	else
 		ep = port->out_ep[ep_addr];
+
+	/*For interrupt endpoint check for buffered data
+	* & complete urb
+	*/
+	if (((ep->attrib & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+						 && ep->buffered_units > 0) {
+		oz_free_urb_link(urbl);
+		spin_unlock_bh(&port->ozhcd->hcd_lock);
+		oz_complete_buffered_urb(port, ep, urb);
+		return 0;
+	}
+
 	if (ep && port->hpd) {
 		list_add_tail(&urbl->link, &ep->urb_list);
 		if (!in_dir && ep_addr && (ep->credit < 0)) {
@@ -883,13 +933,14 @@ void oz_hcd_control_cnf(void *hport, u8 req_id, u8 rcode, u8 *data,
 	} else {
 		int copy_len;
 		oz_trace("VENDOR-CLASS - cnf\n");
-		if (data_len <= urb->transfer_buffer_length)
-			copy_len = data_len;
-		else
-			copy_len = urb->transfer_buffer_length;
-		if (copy_len)
+		if (data_len) {
+			if (data_len <= urb->transfer_buffer_length)
+				copy_len = data_len;
+			else
+				copy_len = urb->transfer_buffer_length;
 			memcpy(urb->transfer_buffer, data, copy_len);
-		urb->actual_length = copy_len;
+			urb->actual_length = copy_len;
+		}
 		oz_complete_urb(hcd, urb, 0, 0);
 	}
 }
@@ -961,6 +1012,9 @@ void oz_hcd_data_ind(void *hport, u8 endpoint, u8 *data, int data_len)
 			urb->actual_length = copy_len;
 			oz_complete_urb(port->ozhcd->hcd, urb, 0, 0);
 			return;
+		} else {
+			oz_trace("buffering frame as URB is not available\n");
+			oz_hcd_buffer_data(ep, data, data_len);
 		}
 		break;
 	case USB_ENDPOINT_XFER_ISOC:
@@ -1000,7 +1054,7 @@ int oz_hcd_heartbeat(void *hport)
 		ep = ep_from_link(e);
 		if (ep->credit < 0)
 			continue;
-		ep->credit += (now - ep->last_jiffies);
+		ep->credit += jiffies_to_msecs(now - ep->last_jiffies);
 		if (ep->credit > ep->credit_ceiling)
 			ep->credit = ep->credit_ceiling;
 		oz_event_log(OZ_EVT_EP_CREDIT, ep->ep_num, 0, 0, ep->credit);
@@ -1009,13 +1063,12 @@ int oz_hcd_heartbeat(void *hport)
 			urbl = list_first_entry(&ep->urb_list,
 				struct oz_urb_link, link);
 			urb = urbl->urb;
-			if (ep->credit < urb->number_of_packets)
+			if ((ep->credit + 1) < urb->number_of_packets)
 				break;
 			ep->credit -= urb->number_of_packets;
 			oz_event_log(OZ_EVT_EP_CREDIT, ep->ep_num, 0, 0,
 				ep->credit);
-			list_del(&urbl->link);
-			list_add_tail(&urbl->link, &xfr_list);
+			list_move_tail(&urbl->link, &xfr_list);
 		}
 	}
 	spin_unlock_bh(&ozhcd->hcd_lock);
@@ -1052,7 +1105,7 @@ int oz_hcd_heartbeat(void *hport)
 			}
 			continue;
 		}
-		ep->credit += (now - ep->last_jiffies);
+		ep->credit += jiffies_to_msecs(now - ep->last_jiffies);
 		oz_event_log(OZ_EVT_EP_CREDIT, ep->ep_num | USB_DIR_IN,
 			0, 0, ep->credit);
 		ep->last_jiffies = now;
@@ -1064,7 +1117,7 @@ int oz_hcd_heartbeat(void *hport)
 			int len = 0;
 			int copy_len;
 			int i;
-			if (ep->credit < urb->number_of_packets)
+			if ((ep->credit + 1) < urb->number_of_packets)
 				break;
 			if (ep->buffered_units < urb->number_of_packets)
 				break;
@@ -1096,8 +1149,7 @@ int oz_hcd_heartbeat(void *hport)
 			urb->error_count = 0;
 			urb->start_frame = ep->start_frame;
 			ep->start_frame += urb->number_of_packets;
-			list_del(&urbl->link);
-			list_add_tail(&urbl->link, &xfr_list);
+			list_move_tail(&urbl->link, &xfr_list);
 			ep->credit -= urb->number_of_packets;
 			oz_event_log(OZ_EVT_EP_CREDIT, ep->ep_num | USB_DIR_IN,
 				0, 0, ep->credit);
@@ -1129,8 +1181,7 @@ int oz_hcd_heartbeat(void *hport)
 				oz_trace("%ld: Request 0x%p timeout\n",
 						now, urbl->urb);
 				urbl->submit_jiffies = now;
-				list_del(e);
-				list_add_tail(e, &xfr_list);
+				list_move_tail(e, &xfr_list);
 			}
 		}
 		if (!list_empty(&ep->urb_list))
@@ -1167,10 +1218,16 @@ static int oz_build_endpoints_for_interface(struct usb_hcd *hcd,
 		int buffer_size = 0;
 
 		oz_trace("%d bEndpointAddress = %x\n", i, ep_addr);
-		if ((ep_addr & USB_ENDPOINT_DIR_MASK) &&
-			((hep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
-			== USB_ENDPOINT_XFER_ISOC)) {
-			buffer_size = 24*1024;
+		if (ep_addr & USB_ENDPOINT_DIR_MASK) {
+			switch (hep->desc.bmAttributes &
+						USB_ENDPOINT_XFERTYPE_MASK) {
+			case USB_ENDPOINT_XFER_ISOC:
+				buffer_size = 24*1024;
+				break;
+			case USB_ENDPOINT_XFER_INT:
+				buffer_size = 128;
+				break;
+			}
 		}
 
 		ep = oz_ep_alloc(mem_flags, buffer_size);
@@ -1247,16 +1304,14 @@ static void oz_clean_endpoints_for_interface(struct usb_hcd *hcd,
 			port->out_ep[i] = 0;
 			/* Remove from isoc list if present.
 			 */
-			list_del(e);
-			list_add_tail(e, &ep_list);
+			list_move_tail(e, &ep_list);
 		}
 		/* Gather IN endpoints.
 		 */
 		if ((mask & (1<<(i+OZ_NB_ENDPOINTS))) && port->in_ep[i]) {
 			e = &port->in_ep[i]->link;
 			port->in_ep[i] = 0;
-			list_del(e);
-			list_add_tail(e, &ep_list);
+			list_move_tail(e, &ep_list);
 		}
 	}
 	spin_unlock_bh(&ozhcd->hcd_lock);
@@ -1458,6 +1513,7 @@ static void oz_process_ep0_urb(struct oz_hcd *ozhcd, struct urb *urb,
 		int data_len = 0;
 		if ((setup->bRequestType & USB_DIR_IN) == 0)
 			data_len = wlength;
+		urb->actual_length = data_len;
 		if (oz_usb_control_req(port->hpd, req_id, setup,
 				urb->transfer_buffer, data_len)) {
 			rc = -ENOMEM;
diff --git a/drivers/staging/ozwpan/ozmain.c b/drivers/staging/ozwpan/ozmain.c
index c1ed6b2522e..ef6c5ab753e 100644
--- a/drivers/staging/ozwpan/ozmain.c
+++ b/drivers/staging/ozwpan/ozmain.c
@@ -59,6 +59,6 @@ module_exit(ozwpan_exit);
 
 MODULE_AUTHOR("Chris Kelly");
 MODULE_DESCRIPTION("Ozmo Devices USB over WiFi hcd driver");
-MODULE_VERSION("1.0.10");
+MODULE_VERSION("1.0.13");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/ozwpan/ozpd.c b/drivers/staging/ozwpan/ozpd.c
index 6c287ac6eae..0b3648ce968 100644
--- a/drivers/staging/ozwpan/ozpd.c
+++ b/drivers/staging/ozwpan/ozpd.c
@@ -24,12 +24,6 @@
 /*------------------------------------------------------------------------------
  */
 #define OZ_MAX_TX_POOL_SIZE	6
-/* Maximum number of uncompleted isoc frames that can be pending in network.
- */
-#define OZ_MAX_SUBMITTED_ISOC	16
-/* Maximum number of uncompleted isoc frames that can be pending in Tx Queue.
- */
-#define OZ_MAX_TX_QUEUE_ISOC	32
 /*------------------------------------------------------------------------------
  */
 static struct oz_tx_frame *oz_tx_frame_alloc(struct oz_pd *pd);
@@ -752,8 +746,7 @@ int oz_isoc_stream_create(struct oz_pd *pd, u8 ep_num)
  */
 static void oz_isoc_stream_free(struct oz_isoc_stream *st)
 {
-	if (st->skb)
-		kfree_skb(st->skb);
+	kfree_skb(st->skb);
 	kfree(st);
 }
 /*------------------------------------------------------------------------------
@@ -854,7 +847,7 @@ int oz_send_isoc_unit(struct oz_pd *pd, u8 ep_num, u8 *data, int len)
 		if (!(pd->mode & OZ_F_ISOC_ANYTIME)) {
 			struct oz_tx_frame *isoc_unit = NULL;
 			int nb = pd->nb_queued_isoc_frames;
-			if (nb >= OZ_MAX_TX_QUEUE_ISOC) {
+			if (nb >= pd->isoc_latency) {
 				oz_trace2(OZ_TRACE_TX_FRAMES,
 						"Dropping ISOC Unit nb= %d\n",
 									nb);
diff --git a/drivers/staging/ozwpan/ozpd.h b/drivers/staging/ozwpan/ozpd.h
index ddf1341b4e6..d35b0ea44f6 100644
--- a/drivers/staging/ozwpan/ozpd.h
+++ b/drivers/staging/ozwpan/ozpd.h
@@ -82,6 +82,7 @@ struct oz_pd {
 	u8		heartbeat_requested;
 	u8		mode;
 	u8		ms_per_isoc;
+	unsigned	isoc_latency;
 	unsigned	max_stream_buffering;
 	int		nb_queued_frames;
 	int		nb_queued_isoc_frames;
diff --git a/drivers/staging/ozwpan/ozproto.c b/drivers/staging/ozwpan/ozproto.c
index a50ab18a598..cfb5160d1eb 100644
--- a/drivers/staging/ozwpan/ozproto.c
+++ b/drivers/staging/ozwpan/ozproto.c
@@ -220,6 +220,19 @@ static struct oz_pd *oz_connect_req(struct oz_pd *cur_pd, struct oz_elt *elt,
 		pd->ms_per_isoc = body->ms_per_isoc;
 		if (!pd->ms_per_isoc)
 			pd->ms_per_isoc = 4;
+
+		switch (body->ms_isoc_latency & OZ_LATENCY_MASK) {
+		case OZ_ONE_MS_LATENCY:
+			pd->isoc_latency = (body->ms_isoc_latency &
+					~OZ_LATENCY_MASK) / pd->ms_per_isoc;
+			break;
+		case OZ_TEN_MS_LATENCY:
+			pd->isoc_latency = ((body->ms_isoc_latency &
+				~OZ_LATENCY_MASK) * 10) / pd->ms_per_isoc;
+			break;
+		default:
+			pd->isoc_latency = OZ_MAX_TX_QUEUE_ISOC;
+		}
 	}
 	if (body->max_len_div16)
 		pd->max_tx_size = ((u16)body->max_len_div16)<<4;
diff --git a/drivers/staging/ozwpan/ozproto.h b/drivers/staging/ozwpan/ozproto.h
index 89aea28bd8d..755a08d0e1c 100644
--- a/drivers/staging/ozwpan/ozproto.h
+++ b/drivers/staging/ozwpan/ozproto.h
@@ -14,7 +14,7 @@
 
 /* Converts millisecs to jiffies.
  */
-#define oz_ms_to_jiffies(__x)	(((__x)*1000)/HZ)
+#define oz_ms_to_jiffies(__x)	msecs_to_jiffies(__x)
 
 /* Quantum milliseconds.
  */
@@ -30,6 +30,12 @@
 /* Maximun sizes of tx frames. */
 #define OZ_MAX_TX_SIZE		1514
 
+/* Maximum number of uncompleted isoc frames that can be pending in network. */
+#define OZ_MAX_SUBMITTED_ISOC	16
+
+/* Maximum number of uncompleted isoc frames that can be pending in Tx Queue. */
+#define OZ_MAX_TX_QUEUE_ISOC	32
+
 /* Application handler functions.
  */
 typedef int (*oz_app_init_fn_t)(void);
diff --git a/drivers/staging/ozwpan/ozprotocol.h b/drivers/staging/ozwpan/ozprotocol.h
index 1e4edbeb61c..17b09b9a5b0 100644
--- a/drivers/staging/ozwpan/ozprotocol.h
+++ b/drivers/staging/ozwpan/ozprotocol.h
@@ -65,6 +65,10 @@ struct oz_hdr {
 
 #define OZ_LAST_PN_HALF_CYCLE	127
 
+#define OZ_LATENCY_MASK		0xc0
+#define OZ_ONE_MS_LATENCY	0x40
+#define OZ_TEN_MS_LATENCY	0x80
+
 /* Connect request data structure.
  */
 struct oz_elt_connect_req {
@@ -73,7 +77,7 @@ struct oz_elt_connect_req {
 	u8	pd_info;
 	u8	session_id;
 	u8	presleep;
-	u8	resv2;
+	u8	ms_isoc_latency;
 	u8	host_vendor;
 	u8	keep_alive;
 	u16	apps;
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index 39f9982c270..6e9f7090c45 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -137,8 +137,8 @@
 #define r_ctr(x)        (parport_read_control((x)->port))
 #define r_dtr(x)        (parport_read_data((x)->port))
 #define r_str(x)        (parport_read_status((x)->port))
-#define w_ctr(x, y)     do { parport_write_control((x)->port, (y)); } while (0)
-#define w_dtr(x, y)     do { parport_write_data((x)->port, (y)); } while (0)
+#define w_ctr(x, y)     (parport_write_control((x)->port, (y)))
+#define w_dtr(x, y)     (parport_write_data((x)->port, (y)))
 
 /* this defines which bits are to be used and which ones to be ignored */
 /* logical or of the output bits involved in the scan matrix */
@@ -757,38 +757,38 @@ static void lcd_backlight(int on)
 		return;
 
 	/* The backlight is activated by setting the AUTOFEED line to +5V  */
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	bits.bl = on;
 	panel_set_bits();
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 /* send a command to the LCD panel in serial mode */
 static void lcd_write_cmd_s(int cmd)
 {
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	lcd_send_serial(0x1F);	/* R/W=W, RS=0 */
 	lcd_send_serial(cmd & 0x0F);
 	lcd_send_serial((cmd >> 4) & 0x0F);
 	udelay(40);		/* the shortest command takes at least 40 us */
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 /* send data to the LCD panel in serial mode */
 static void lcd_write_data_s(int data)
 {
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	lcd_send_serial(0x5F);	/* R/W=W, RS=1 */
 	lcd_send_serial(data & 0x0F);
 	lcd_send_serial((data >> 4) & 0x0F);
 	udelay(40);		/* the shortest data takes at least 40 us */
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 /* send a command to the LCD panel in 8 bits parallel mode */
 static void lcd_write_cmd_p8(int cmd)
 {
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	/* present the data to the data port */
 	w_dtr(pprt, cmd);
 	udelay(20);	/* maintain the data during 20 us before the strobe */
@@ -804,13 +804,13 @@ static void lcd_write_cmd_p8(int cmd)
 	set_ctrl_bits();
 
 	udelay(120);	/* the shortest command takes at least 120 us */
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 /* send data to the LCD panel in 8 bits parallel mode */
 static void lcd_write_data_p8(int data)
 {
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	/* present the data to the data port */
 	w_dtr(pprt, data);
 	udelay(20);	/* maintain the data during 20 us before the strobe */
@@ -826,27 +826,27 @@ static void lcd_write_data_p8(int data)
 	set_ctrl_bits();
 
 	udelay(45);	/* the shortest data takes at least 45 us */
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 /* send a command to the TI LCD panel */
 static void lcd_write_cmd_tilcd(int cmd)
 {
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	/* present the data to the control port */
 	w_ctr(pprt, cmd);
 	udelay(60);
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 /* send data to the TI LCD panel */
 static void lcd_write_data_tilcd(int data)
 {
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	/* present the data to the data port */
 	w_dtr(pprt, data);
 	udelay(60);
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 }
 
 static void lcd_gotoxy(void)
@@ -879,14 +879,14 @@ static void lcd_clear_fast_s(void)
 	lcd_addr_x = lcd_addr_y = 0;
 	lcd_gotoxy();
 
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
 		lcd_send_serial(0x5F);	/* R/W=W, RS=1 */
 		lcd_send_serial(' ' & 0x0F);
 		lcd_send_serial((' ' >> 4) & 0x0F);
 		udelay(40);	/* the shortest data takes at least 40 us */
 	}
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 
 	lcd_addr_x = lcd_addr_y = 0;
 	lcd_gotoxy();
@@ -899,7 +899,7 @@ static void lcd_clear_fast_p8(void)
 	lcd_addr_x = lcd_addr_y = 0;
 	lcd_gotoxy();
 
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
 		/* present the data to the data port */
 		w_dtr(pprt, ' ');
@@ -921,7 +921,7 @@ static void lcd_clear_fast_p8(void)
 		/* the shortest data takes at least 45 us */
 		udelay(45);
 	}
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 
 	lcd_addr_x = lcd_addr_y = 0;
 	lcd_gotoxy();
@@ -934,14 +934,14 @@ static void lcd_clear_fast_tilcd(void)
 	lcd_addr_x = lcd_addr_y = 0;
 	lcd_gotoxy();
 
-	spin_lock(&pprt_lock);
+	spin_lock_irq(&pprt_lock);
 	for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
 		/* present the data to the data port */
 		w_dtr(pprt, ' ');
 		udelay(60);
 	}
 
-	spin_unlock(&pprt_lock);
+	spin_unlock_irq(&pprt_lock);
 
 	lcd_addr_x = lcd_addr_y = 0;
 	lcd_gotoxy();
@@ -1197,7 +1197,7 @@ static inline int handle_lcd_special_code(void)
 		break;
 	}
 
-	/* Check wether one flag was changed */
+	/* Check whether one flag was changed */
 	if (oldflags != lcd_flags) {
 		/* check whether one of B,C,D flags were changed */
 		if ((oldflags ^ lcd_flags) &
@@ -1212,7 +1212,7 @@ static inline int handle_lcd_special_code(void)
 			lcd_write_cmd(0x30
 				      | ((lcd_flags & LCD_FLAG_F) ? 4 : 0)
 				      | ((lcd_flags & LCD_FLAG_N) ? 8 : 0));
-		/* check wether L flag was changed */
+		/* check whether L flag was changed */
 		else if ((oldflags ^ lcd_flags) & (LCD_FLAG_L)) {
 			if (lcd_flags & (LCD_FLAG_L))
 				lcd_backlight(1);
@@ -1886,11 +1886,11 @@ static void panel_process_inputs(void)
 static void panel_scan_timer(void)
 {
 	if (keypad_enabled && keypad_initialized) {
-		if (spin_trylock(&pprt_lock)) {
+		if (spin_trylock_irq(&pprt_lock)) {
 			phys_scan_contacts();
 
 			/* no need for the parport anymore */
-			spin_unlock(&pprt_lock);
+			spin_unlock_irq(&pprt_lock);
 		}
 
 		if (!inputs_stable || phys_curr != phys_prev)
diff --git a/drivers/staging/ramster/Kconfig b/drivers/staging/ramster/Kconfig
index 8349887827d..843c5410143 100644
--- a/drivers/staging/ramster/Kconfig
+++ b/drivers/staging/ramster/Kconfig
@@ -1,13 +1,30 @@
+config ZCACHE2
+	bool "Dynamic compression of swap pages and clean pagecache pages"
+	depends on CRYPTO=y && SWAP=y && CLEANCACHE && FRONTSWAP && !ZCACHE 
+	select CRYPTO_LZO
+	default n
+	help
+	  Zcache2 doubles RAM efficiency while providing a significant
+	  performance boosts on many workloads.  Zcache2 uses
+	  compression and an in-kernel implementation of transcendent
+	  memory to store clean page cache pages and swap in RAM,
+	  providing a noticeable reduction in disk I/O.  Zcache2
+	  is a complete rewrite of the older zcache; it was intended to
+	  be a merge but that has been blocked due to political and
+	  technical disagreements.  It is intended that they will merge
+	  again in the future.  Until then, zcache2 is a single-node
+	  version of ramster.
+
 config RAMSTER
 	bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"
-	depends on (CLEANCACHE || FRONTSWAP) && CONFIGFS_FS=y && !ZCACHE && !XVMALLOC && !HIGHMEM && NET
-	select LZO_COMPRESS
-	select LZO_DECOMPRESS
+	depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE2=y
+	# must ensure struct page is 8-byte aligned
+	select HAVE_ALIGNED_STRUCT_PAGE if !64_BIT
 	default n
 	help
 	  RAMster allows RAM on other machines in a cluster to be utilized
 	  dynamically and symmetrically instead of swapping to a local swap
 	  disk, thus improving performance on memory-constrained workloads
 	  while minimizing total RAM across the cluster.  RAMster, like
-	  zcache, compresses swap pages into local RAM, but then remotifies
+	  zcache2, compresses swap pages into local RAM, but then remotifies
 	  the compressed pages to another node in the RAMster cluster.
diff --git a/drivers/staging/ramster/Makefile b/drivers/staging/ramster/Makefile
index bcc13c87f99..2d8b9d0a6a8 100644
--- a/drivers/staging/ramster/Makefile
+++ b/drivers/staging/ramster/Makefile
@@ -1 +1,6 @@
-obj-$(CONFIG_RAMSTER)	+=	zcache-main.o tmem.o r2net.o xvmalloc.o cluster/
+zcache-y	:=		zcache-main.o tmem.o zbud.o
+zcache-$(CONFIG_RAMSTER)	+=	ramster/ramster.o ramster/r2net.o
+zcache-$(CONFIG_RAMSTER)	+=	ramster/nodemanager.o ramster/tcp.o
+zcache-$(CONFIG_RAMSTER)	+=	ramster/heartbeat.o ramster/masklog.o
+
+obj-$(CONFIG_ZCACHE2)	+=	zcache.o
diff --git a/drivers/staging/ramster/TODO b/drivers/staging/ramster/TODO
deleted file mode 100644
index 46fcf0c58ac..00000000000
--- a/drivers/staging/ramster/TODO
+++ /dev/null
@@ -1,13 +0,0 @@
-For this staging driver, RAMster duplicates code from drivers/staging/zcache
-then incorporates changes to the local copy of the code.  For V5, it also
-directly incorporates the soon-to-be-removed drivers/staging/zram/xvmalloc.[ch]
-as all testing has been done with xvmalloc rather than the new zsmalloc.
-Before RAMster can be promoted from staging, the zcache and RAMster drivers
-should be either merged or reorganized to separate out common code.
-
-Until V4, RAMster duplicated code from fs/ocfs2/cluster, but this made
-RAMster incompatible with ocfs2 running in the same kernel and included
-lots of code that could be removed.  As of V5, the ocfs2 code has been
-mined and made RAMster-specific, made to communicate with a userland
-ramster-tools package rather than ocfs2-tools, and can co-exist with ocfs2
-both in the same kernel and in userland on the same machine.
diff --git a/drivers/staging/ramster/cluster/Makefile b/drivers/staging/ramster/cluster/Makefile
deleted file mode 100644
index 9c6943652c0..00000000000
--- a/drivers/staging/ramster/cluster/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_RAMSTER) += ramster_nodemanager.o
-
-ramster_nodemanager-objs := heartbeat.o masklog.o nodemanager.o tcp.o
diff --git a/drivers/staging/ramster/ramster.h b/drivers/staging/ramster/ramster.h
index 0c9455e8dcd..1b71aea2ff6 100644
--- a/drivers/staging/ramster/ramster.h
+++ b/drivers/staging/ramster/ramster.h
@@ -1,118 +1,59 @@
+
 /*
- * ramster.h
+ * zcache/ramster.h
  *
- * Peer-to-peer transcendent memory
+ * Placeholder to resolve ramster references when !CONFIG_RAMSTER
+ * Real ramster.h lives in ramster subdirectory.
  *
  * Copyright (c) 2009-2012, Dan Magenheimer, Oracle Corp.
  */
 
-#ifndef _RAMSTER_H_
-#define _RAMSTER_H_
-
-/*
- * format of remote pampd:
- *   bit 0 == intransit
- *   bit 1 == is_remote... if this bit is set, then
- *   bit 2-9 == remotenode
- *   bit 10-22 == size
- *   bit 23-30 == cksum
- */
-#define FAKE_PAMPD_INTRANSIT_BITS	1
-#define FAKE_PAMPD_ISREMOTE_BITS	1
-#define FAKE_PAMPD_REMOTENODE_BITS	8
-#define FAKE_PAMPD_REMOTESIZE_BITS	13
-#define FAKE_PAMPD_CHECKSUM_BITS	8
-
-#define FAKE_PAMPD_INTRANSIT_SHIFT	0
-#define FAKE_PAMPD_ISREMOTE_SHIFT	(FAKE_PAMPD_INTRANSIT_SHIFT + \
-					 FAKE_PAMPD_INTRANSIT_BITS)
-#define FAKE_PAMPD_REMOTENODE_SHIFT	(FAKE_PAMPD_ISREMOTE_SHIFT + \
-					 FAKE_PAMPD_ISREMOTE_BITS)
-#define FAKE_PAMPD_REMOTESIZE_SHIFT	(FAKE_PAMPD_REMOTENODE_SHIFT + \
-					 FAKE_PAMPD_REMOTENODE_BITS)
-#define FAKE_PAMPD_CHECKSUM_SHIFT	(FAKE_PAMPD_REMOTESIZE_SHIFT + \
-					 FAKE_PAMPD_REMOTESIZE_BITS)
+#ifndef _ZCACHE_RAMSTER_H_
+#define _ZCACHE_RAMSTER_H_
 
-#define FAKE_PAMPD_MASK(x)		((1UL << (x)) - 1)
-
-static inline void *pampd_make_remote(int remotenode, size_t size,
-					unsigned char cksum)
+#ifdef CONFIG_RAMSTER
+#include "ramster/ramster.h"
+#else
+static inline void ramster_init(bool x, bool y, bool z)
 {
-	unsigned long fake_pampd = 0;
-	fake_pampd |= 1UL << FAKE_PAMPD_ISREMOTE_SHIFT;
-	fake_pampd |= ((unsigned long)remotenode &
-			FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTENODE_BITS)) <<
-				FAKE_PAMPD_REMOTENODE_SHIFT;
-	fake_pampd |= ((unsigned long)size &
-			FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTESIZE_BITS)) <<
-				FAKE_PAMPD_REMOTESIZE_SHIFT;
-	fake_pampd |= ((unsigned long)cksum &
-			FAKE_PAMPD_MASK(FAKE_PAMPD_CHECKSUM_BITS)) <<
-				FAKE_PAMPD_CHECKSUM_SHIFT;
-	return (void *)fake_pampd;
 }
 
-static inline unsigned int pampd_remote_node(void *pampd)
+static inline void ramster_register_pamops(struct tmem_pamops *p)
 {
-	unsigned long fake_pampd = (unsigned long)pampd;
-	return (fake_pampd >> FAKE_PAMPD_REMOTENODE_SHIFT) &
-		FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTENODE_BITS);
 }
 
-static inline unsigned int pampd_remote_size(void *pampd)
+static inline int ramster_remotify_pageframe(bool b)
 {
-	unsigned long fake_pampd = (unsigned long)pampd;
-	return (fake_pampd >> FAKE_PAMPD_REMOTESIZE_SHIFT) &
-		FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTESIZE_BITS);
+	return 0;
 }
 
-static inline unsigned char pampd_remote_cksum(void *pampd)
+static inline void *ramster_pampd_free(void *v, struct tmem_pool *p,
+			struct tmem_oid *o, uint32_t u, bool b)
 {
-	unsigned long fake_pampd = (unsigned long)pampd;
-	return (fake_pampd >> FAKE_PAMPD_CHECKSUM_SHIFT) &
-		FAKE_PAMPD_MASK(FAKE_PAMPD_CHECKSUM_BITS);
+	return NULL;
 }
 
-static inline bool pampd_is_remote(void *pampd)
+static inline int ramster_do_preload_flnode(struct tmem_pool *p)
 {
-	unsigned long fake_pampd = (unsigned long)pampd;
-	return (fake_pampd >> FAKE_PAMPD_ISREMOTE_SHIFT) &
-		FAKE_PAMPD_MASK(FAKE_PAMPD_ISREMOTE_BITS);
+	return -1;
 }
 
-static inline bool pampd_is_intransit(void *pampd)
+static inline bool pampd_is_remote(void *v)
 {
-	unsigned long fake_pampd = (unsigned long)pampd;
-	return (fake_pampd >> FAKE_PAMPD_INTRANSIT_SHIFT) &
-		FAKE_PAMPD_MASK(FAKE_PAMPD_INTRANSIT_BITS);
+	return false;
 }
 
-/* note that it is a BUG for intransit to be set without isremote also set */
-static inline void *pampd_mark_intransit(void *pampd)
+static inline void ramster_count_foreign_pages(bool b, int i)
 {
-	unsigned long fake_pampd = (unsigned long)pampd;
-
-	fake_pampd |= 1UL << FAKE_PAMPD_ISREMOTE_SHIFT;
-	fake_pampd |= 1UL << FAKE_PAMPD_INTRANSIT_SHIFT;
-	return (void *)fake_pampd;
 }
 
-static inline void *pampd_mask_intransit_and_remote(void *marked_pampd)
+static inline void ramster_cpu_up(int cpu)
 {
-	unsigned long pampd = (unsigned long)marked_pampd;
-
-	pampd &= ~(1UL << FAKE_PAMPD_INTRANSIT_SHIFT);
-	pampd &= ~(1UL << FAKE_PAMPD_ISREMOTE_SHIFT);
-	return (void *)pampd;
 }
 
-extern int ramster_remote_async_get(struct tmem_xhandle *,
-				bool, int, size_t, uint8_t, void *extra);
-extern int ramster_remote_put(struct tmem_xhandle *, char *, size_t,
-				bool, int *);
-extern int ramster_remote_flush(struct tmem_xhandle *, int);
-extern int ramster_remote_flush_object(struct tmem_xhandle *, int);
-extern int r2net_register_handlers(void);
-extern int r2net_remote_target_node_set(int);
+static inline void ramster_cpu_down(int cpu)
+{
+}
+#endif
 
-#endif /* _TMEM_H */
+#endif /* _ZCACHE_RAMSTER_H */
diff --git a/drivers/staging/ramster/cluster/heartbeat.c b/drivers/staging/ramster/ramster/heartbeat.c
index 00209490756..75d3fe80b05 100644
--- a/drivers/staging/ramster/cluster/heartbeat.c
+++ b/drivers/staging/ramster/ramster/heartbeat.c
@@ -172,8 +172,7 @@ static void r2hb_hb_group_drop_item(struct config_group *group,
 					   struct config_item *item)
 {
 	if (r2hb_global_heartbeat_active()) {
-		printk(KERN_NOTICE "ramster: Heartbeat %s "
-			"on region %s (%s)\n",
+		pr_notice("ramster: Heartbeat %s on region %s (%s)\n",
 			"stopped/aborted", config_item_name(item),
 			"no region");
 	}
@@ -265,8 +264,7 @@ ssize_t r2hb_hb_group_mode_store(struct r2hb_hb_group *group,
 
 		ret = r2hb_global_hearbeat_mode_set(i);
 		if (!ret)
-			printk(KERN_NOTICE "ramster: Heartbeat mode "
-						"set to %s\n",
+			pr_notice("ramster: Heartbeat mode set to %s\n",
 			       r2hb_heartbeat_mode_desc[i]);
 		return count;
 	}
diff --git a/drivers/staging/ramster/cluster/heartbeat.h b/drivers/staging/ramster/ramster/heartbeat.h
index 6cbc775bd63..6cbc775bd63 100644
--- a/drivers/staging/ramster/cluster/heartbeat.h
+++ b/drivers/staging/ramster/ramster/heartbeat.h
diff --git a/drivers/staging/ramster/cluster/masklog.c b/drivers/staging/ramster/ramster/masklog.c
index 1261d8579aa..1261d8579aa 100644
--- a/drivers/staging/ramster/cluster/masklog.c
+++ b/drivers/staging/ramster/ramster/masklog.c
diff --git a/drivers/staging/ramster/cluster/masklog.h b/drivers/staging/ramster/ramster/masklog.h
index 918ae110b69..918ae110b69 100644
--- a/drivers/staging/ramster/cluster/masklog.h
+++ b/drivers/staging/ramster/ramster/masklog.h
diff --git a/drivers/staging/ramster/cluster/nodemanager.c b/drivers/staging/ramster/ramster/nodemanager.c
index de0e5c8da6e..c0f48158735 100644
--- a/drivers/staging/ramster/cluster/nodemanager.c
+++ b/drivers/staging/ramster/ramster/nodemanager.c
@@ -528,7 +528,8 @@ static ssize_t r2nm_cluster_attr_idle_timeout_ms_write(
 			     r2net_num_connected_peers());
 			ret = -EINVAL;
 		} else if (val <= cluster->cl_keepalive_delay_ms) {
-			mlog(ML_NOTICE, "r2net: idle timeout must be larger "
+			mlog(ML_NOTICE,
+			     "r2net: idle timeout must be larger "
 			     "than keepalive delay\n");
 			ret = -EINVAL;
 		} else {
@@ -563,7 +564,8 @@ static ssize_t r2nm_cluster_attr_keepalive_delay_ms_write(
 			     r2net_num_connected_peers());
 			ret = -EINVAL;
 		} else if (val >= cluster->cl_idle_timeout_ms) {
-			mlog(ML_NOTICE, "r2net: keepalive delay must be "
+			mlog(ML_NOTICE,
+			     "r2net: keepalive delay must be "
 			     "smaller than idle timeout\n");
 			ret = -EINVAL;
 		} else {
@@ -612,7 +614,7 @@ static ssize_t r2nm_cluster_attr_fence_method_write(
 		if (strncasecmp(page, r2nm_fence_method_desc[i], count - 1))
 			continue;
 		if (cluster->cl_fence_method != i) {
-			printk(KERN_INFO "ramster: Changing fence method to %s\n",
+			pr_info("ramster: Changing fence method to %s\n",
 			       r2nm_fence_method_desc[i]);
 			cluster->cl_fence_method = i;
 		}
@@ -967,7 +969,7 @@ static int __init init_r2nm(void)
 	mutex_init(&r2nm_cluster_group.cs_subsys.su_mutex);
 	ret = configfs_register_subsystem(&r2nm_cluster_group.cs_subsys);
 	if (ret) {
-		printk(KERN_ERR "nodemanager: Registration returned %d\n", ret);
+		pr_err("nodemanager: Registration returned %d\n", ret);
 		goto out_callbacks;
 	}
 
@@ -988,5 +990,6 @@ out:
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
 
-module_init(init_r2nm)
-module_exit(exit_r2nm)
+/* module_init(init_r2nm) */
+late_initcall(init_r2nm);
+/* module_exit(exit_r2nm) */
diff --git a/drivers/staging/ramster/cluster/nodemanager.h b/drivers/staging/ramster/ramster/nodemanager.h
index 41a04df5842..41a04df5842 100644
--- a/drivers/staging/ramster/cluster/nodemanager.h
+++ b/drivers/staging/ramster/ramster/nodemanager.h
diff --git a/drivers/staging/ramster/r2net.c b/drivers/staging/ramster/ramster/r2net.c
index fc830c3ac74..34818dc6561 100644
--- a/drivers/staging/ramster/r2net.c
+++ b/drivers/staging/ramster/ramster/r2net.c
@@ -1,7 +1,7 @@
 /*
  * r2net.c
  *
- * Copyright (c) 2011, Dan Magenheimer, Oracle Corp.
+ * Copyright (c) 2011-2012, Dan Magenheimer, Oracle Corp.
  *
  * Ramster_r2net provides an interface between zcache and r2net.
  *
@@ -9,10 +9,10 @@
  */
 
 #include <linux/list.h>
-#include "cluster/tcp.h"
-#include "cluster/nodemanager.h"
-#include "tmem.h"
-#include "zcache.h"
+#include "tcp.h"
+#include "nodemanager.h"
+#include "../tmem.h"
+#include "../zcache.h"
 #include "ramster.h"
 
 #define RAMSTER_TESTING
@@ -33,7 +33,7 @@ enum {
 #define RMSTR_R2NET_MAX_LEN \
 		(R2NET_MAX_PAYLOAD_BYTES - sizeof(struct tmem_xhandle))
 
-#include "cluster/tcp_internal.h"
+#include "tcp_internal.h"
 
 static struct r2nm_node *r2net_target_node;
 static int r2net_target_nodenum;
@@ -72,8 +72,8 @@ static int ramster_remote_async_get_request_handler(struct r2net_msg *msg,
 	*(struct tmem_xhandle *)pdata = xh;
 	pdata += sizeof(struct tmem_xhandle);
 	local_irq_save(flags);
-	found = zcache_get(xh.client_id, xh.pool_id, &xh.oid, xh.index,
-				pdata, &size, 1, get_and_free ? 1 : -1);
+	found = zcache_get_page(xh.client_id, xh.pool_id, &xh.oid, xh.index,
+				pdata, &size, true, get_and_free ? 1 : -1);
 	local_irq_restore(flags);
 	if (found < 0) {
 		/* a zero size indicates the get failed */
@@ -98,7 +98,7 @@ static int ramster_remote_async_get_reply_handler(struct r2net_msg *msg,
 	in += sizeof(struct tmem_xhandle);
 	datalen -= sizeof(struct tmem_xhandle);
 	BUG_ON(datalen < 0 || datalen > PAGE_SIZE);
-	ret = zcache_localify(xh->pool_id, &xh->oid, xh->index,
+	ret = ramster_localify(xh->pool_id, &xh->oid, xh->index,
 				in, datalen, xh->extra);
 #ifdef RAMSTER_TESTING
 	if (ret == -EEXIST)
@@ -123,8 +123,8 @@ int ramster_remote_put_handler(struct r2net_msg *msg,
 	p += sizeof(struct tmem_xhandle);
 	zcache_autocreate_pool(xh->client_id, xh->pool_id, ephemeral);
 	local_irq_save(flags);
-	ret = zcache_put(xh->client_id, xh->pool_id, &xh->oid, xh->index,
-				p, datalen, 1, ephemeral ? 1 : -1);
+	ret = zcache_put_page(xh->client_id, xh->pool_id, &xh->oid, xh->index,
+				p, datalen, true, ephemeral);
 	local_irq_restore(flags);
 	return ret;
 }
@@ -137,7 +137,8 @@ int ramster_remote_flush_handler(struct r2net_msg *msg,
 
 	xh = (struct tmem_xhandle *)p;
 	p += sizeof(struct tmem_xhandle);
-	(void)zcache_flush(xh->client_id, xh->pool_id, &xh->oid, xh->index);
+	(void)zcache_flush_page(xh->client_id, xh->pool_id,
+					&xh->oid, xh->index);
 	return 0;
 }
 
@@ -153,15 +154,16 @@ int ramster_remote_flobj_handler(struct r2net_msg *msg,
 	return 0;
 }
 
-int ramster_remote_async_get(struct tmem_xhandle *xh, bool free, int remotenode,
+int r2net_remote_async_get(struct tmem_xhandle *xh, bool free, int remotenode,
 				size_t expect_size, uint8_t expect_cksum,
 				void *extra)
 {
-	int ret = -1, status;
+	int nodenum, ret = -1, status;
 	struct r2nm_node *node = NULL;
 	struct kvec vec[1];
 	size_t veclen = 1;
 	u32 msg_type;
+	struct r2net_node *nn;
 
 	node = r2nm_get_node_by_num(remotenode);
 	if (node == NULL)
@@ -172,6 +174,21 @@ int ramster_remote_async_get(struct tmem_xhandle *xh, bool free, int remotenode,
 	xh->extra = extra;
 	vec[0].iov_len = sizeof(*xh);
 	vec[0].iov_base = xh;
+
+	node = r2net_target_node;
+	if (!node)
+		goto out;
+
+	nodenum = r2net_target_nodenum;
+
+	r2nm_node_get(node);
+	nn = r2net_nn_from_num(nodenum);
+	if (nn->nn_persistent_error || !nn->nn_sc_valid) {
+		ret = -ENOTCONN;
+		r2nm_node_put(node);
+		goto out;
+	}
+
 	if (free)
 		msg_type = RMSTR_TMEM_ASYNC_GET_AND_FREE_REQUEST;
 	else
@@ -180,8 +197,13 @@ int ramster_remote_async_get(struct tmem_xhandle *xh, bool free, int remotenode,
 					vec, veclen, remotenode, &status);
 	r2nm_node_put(node);
 	if (ret < 0) {
+		if (ret == -ENOTCONN || ret == -EHOSTDOWN)
+			goto out;
+		if (ret == -EAGAIN)
+			goto out;
 		/* FIXME handle bad message possibilities here? */
-		pr_err("UNTESTED ret<0 in ramster_remote_async_get\n");
+		pr_err("UNTESTED ret<0 in ramster_remote_async_get: ret=%d\n",
+				ret);
 	}
 	ret = status;
 out:
@@ -219,7 +241,7 @@ static void ramster_check_irq_counts(void)
 }
 #endif
 
-int ramster_remote_put(struct tmem_xhandle *xh, char *data, size_t size,
+int r2net_remote_put(struct tmem_xhandle *xh, char *data, size_t size,
 				bool ephemeral, int *remotenode)
 {
 	int nodenum, ret = -1, status;
@@ -227,9 +249,7 @@ int ramster_remote_put(struct tmem_xhandle *xh, char *data, size_t size,
 	struct kvec vec[2];
 	size_t veclen = 2;
 	u32 msg_type;
-#ifdef RAMSTER_TESTING
 	struct r2net_node *nn;
-#endif
 
 	BUG_ON(size > RMSTR_R2NET_MAX_LEN);
 	xh->client_id = r2nm_this_node(); /* which node is putting */
@@ -237,6 +257,7 @@ int ramster_remote_put(struct tmem_xhandle *xh, char *data, size_t size,
 	vec[0].iov_base = xh;
 	vec[1].iov_len = size;
 	vec[1].iov_base = data;
+
 	node = r2net_target_node;
 	if (!node)
 		goto out;
@@ -245,10 +266,12 @@ int ramster_remote_put(struct tmem_xhandle *xh, char *data, size_t size,
 
 	r2nm_node_get(node);
 
-#ifdef RAMSTER_TESTING
 	nn = r2net_nn_from_num(nodenum);
-	WARN_ON_ONCE(nn->nn_persistent_error || !nn->nn_sc_valid);
-#endif
+	if (nn->nn_persistent_error || !nn->nn_sc_valid) {
+		ret = -ENOTCONN;
+		r2nm_node_put(node);
+		goto out;
+	}
 
 	if (ephemeral)
 		msg_type = RMSTR_TMEM_PUT_EPH;
@@ -261,16 +284,6 @@ int ramster_remote_put(struct tmem_xhandle *xh, char *data, size_t size,
 
 	ret = r2net_send_message_vec(msg_type, RMSTR_KEY, vec, veclen,
 						nodenum, &status);
-#ifdef RAMSTER_TESTING
-	if (ret != 0) {
-		static unsigned long cnt;
-		cnt++;
-		if (!(cnt&(cnt-1)))
-			pr_err("ramster_remote_put: message failed, ret=%d, cnt=%lu\n",
-				ret, cnt);
-		ret = -1;
-	}
-#endif
 	if (ret < 0)
 		ret = -1;
 	else {
@@ -283,7 +296,7 @@ out:
 	return ret;
 }
 
-int ramster_remote_flush(struct tmem_xhandle *xh, int remotenode)
+int r2net_remote_flush(struct tmem_xhandle *xh, int remotenode)
 {
 	int ret = -1, status;
 	struct r2nm_node *node = NULL;
@@ -303,7 +316,7 @@ int ramster_remote_flush(struct tmem_xhandle *xh, int remotenode)
 	return ret;
 }
 
-int ramster_remote_flush_object(struct tmem_xhandle *xh, int remotenode)
+int r2net_remote_flush_object(struct tmem_xhandle *xh, int remotenode)
 {
 	int ret = -1, status;
 	struct r2nm_node *node = NULL;
diff --git a/drivers/staging/ramster/ramster/ramster.c b/drivers/staging/ramster/ramster/ramster.c
new file mode 100644
index 00000000000..c06709f3968
--- /dev/null
+++ b/drivers/staging/ramster/ramster/ramster.c
@@ -0,0 +1,985 @@
+/*
+ * ramster.c
+ *
+ * Copyright (c) 2010-2012, Dan Magenheimer, Oracle Corp.
+ *
+ * RAMster implements peer-to-peer transcendent memory, allowing a "cluster" of
+ * kernels to dynamically pool their RAM so that a RAM-hungry workload on one
+ * machine can temporarily and transparently utilize RAM on another machine
+ * which is presumably idle or running a non-RAM-hungry workload.
+ *
+ * RAMster combines a clustering and messaging foundation based on the ocfs2
+ * cluster layer with the in-kernel compression implementation of zcache, and
+ * adds code to glue them together.  When a page is "put" to RAMster, it is
+ * compressed and stored locally.  Periodically, a thread will "remotify" these
+ * pages by sending them via messages to a remote machine.  When the page is
+ * later needed as indicated by a page fault, a "get" is issued.  If the data
+ * is local, it is uncompressed and the fault is resolved.  If the data is
+ * remote, a message is sent to fetch the data and the faulting thread sleeps;
+ * when the data arrives, the thread awakens, the data is decompressed and
+ * the fault is resolved.
+
+ * As of V5, clusters up to eight nodes are supported; each node can remotify
+ * pages to one specified node, so clusters can be configured as clients to
+ * a "memory server".  Some simple policy is in place that will need to be
+ * refined over time.  Larger clusters and fault-resistant protocols can also
+ * be added over time.
+ */
+
+#include <linux/module.h>
+#include <linux/cpu.h>
+#include <linux/highmem.h>
+#include <linux/list.h>
+#include <linux/lzo.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/atomic.h>
+#include <linux/frontswap.h>
+#include "../tmem.h"
+#include "../zcache.h"
+#include "../zbud.h"
+#include "ramster.h"
+#include "ramster_nodemanager.h"
+#include "tcp.h"
+
+#define RAMSTER_TESTING
+
+#ifndef CONFIG_SYSFS
+#error "ramster needs sysfs to define cluster nodes to use"
+#endif
+
+static bool use_cleancache __read_mostly;
+static bool use_frontswap __read_mostly;
+static bool use_frontswap_exclusive_gets __read_mostly;
+
+/* These must be sysfs not debugfs as they are checked/used by userland!! */
+static unsigned long ramster_interface_revision __read_mostly =
+	R2NM_API_VERSION; /* interface revision must match userspace! */
+static unsigned long ramster_pers_remotify_enable __read_mostly;
+static unsigned long ramster_eph_remotify_enable __read_mostly;
+static atomic_t ramster_remote_pers_pages = ATOMIC_INIT(0);
+#define MANUAL_NODES 8
+static bool ramster_nodes_manual_up[MANUAL_NODES] __read_mostly;
+static int ramster_remote_target_nodenum __read_mostly = -1;
+
+/* these counters are made available via debugfs */
+static long ramster_flnodes;
+static atomic_t ramster_flnodes_atomic = ATOMIC_INIT(0);
+static unsigned long ramster_flnodes_max;
+static long ramster_foreign_eph_pages;
+static atomic_t ramster_foreign_eph_pages_atomic = ATOMIC_INIT(0);
+static unsigned long ramster_foreign_eph_pages_max;
+static long ramster_foreign_pers_pages;
+static atomic_t ramster_foreign_pers_pages_atomic = ATOMIC_INIT(0);
+static unsigned long ramster_foreign_pers_pages_max;
+static unsigned long ramster_eph_pages_remoted;
+static unsigned long ramster_pers_pages_remoted;
+static unsigned long ramster_eph_pages_remote_failed;
+static unsigned long ramster_pers_pages_remote_failed;
+static unsigned long ramster_remote_eph_pages_succ_get;
+static unsigned long ramster_remote_pers_pages_succ_get;
+static unsigned long ramster_remote_eph_pages_unsucc_get;
+static unsigned long ramster_remote_pers_pages_unsucc_get;
+static unsigned long ramster_pers_pages_remote_nomem;
+static unsigned long ramster_remote_objects_flushed;
+static unsigned long ramster_remote_object_flushes_failed;
+static unsigned long ramster_remote_pages_flushed;
+static unsigned long ramster_remote_page_flushes_failed;
+/* FIXME frontswap selfshrinking knobs in debugfs? */
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#define	zdfs	debugfs_create_size_t
+#define	zdfs64	debugfs_create_u64
+static int __init ramster_debugfs_init(void)
+{
+	struct dentry *root = debugfs_create_dir("ramster", NULL);
+	if (root == NULL)
+		return -ENXIO;
+
+	zdfs("eph_pages_remoted", S_IRUGO, root, &ramster_eph_pages_remoted);
+	zdfs("pers_pages_remoted", S_IRUGO, root, &ramster_pers_pages_remoted);
+	zdfs("eph_pages_remote_failed", S_IRUGO, root,
+			&ramster_eph_pages_remote_failed);
+	zdfs("pers_pages_remote_failed", S_IRUGO, root,
+			&ramster_pers_pages_remote_failed);
+	zdfs("remote_eph_pages_succ_get", S_IRUGO, root,
+			&ramster_remote_eph_pages_succ_get);
+	zdfs("remote_pers_pages_succ_get", S_IRUGO, root,
+			&ramster_remote_pers_pages_succ_get);
+	zdfs("remote_eph_pages_unsucc_get", S_IRUGO, root,
+			&ramster_remote_eph_pages_unsucc_get);
+	zdfs("remote_pers_pages_unsucc_get", S_IRUGO, root,
+			&ramster_remote_pers_pages_unsucc_get);
+	zdfs("pers_pages_remote_nomem", S_IRUGO, root,
+			&ramster_pers_pages_remote_nomem);
+	zdfs("remote_objects_flushed", S_IRUGO, root,
+			&ramster_remote_objects_flushed);
+	zdfs("remote_pages_flushed", S_IRUGO, root,
+			&ramster_remote_pages_flushed);
+	zdfs("remote_object_flushes_failed", S_IRUGO, root,
+			&ramster_remote_object_flushes_failed);
+	zdfs("remote_page_flushes_failed", S_IRUGO, root,
+			&ramster_remote_page_flushes_failed);
+	zdfs("foreign_eph_pages", S_IRUGO, root,
+			&ramster_foreign_eph_pages);
+	zdfs("foreign_eph_pages_max", S_IRUGO, root,
+			&ramster_foreign_eph_pages_max);
+	zdfs("foreign_pers_pages", S_IRUGO, root,
+			&ramster_foreign_pers_pages);
+	zdfs("foreign_pers_pages_max", S_IRUGO, root,
+			&ramster_foreign_pers_pages_max);
+	return 0;
+}
+#undef	zdebugfs
+#undef	zdfs64
+#endif
+
+static LIST_HEAD(ramster_rem_op_list);
+static DEFINE_SPINLOCK(ramster_rem_op_list_lock);
+static DEFINE_PER_CPU(struct ramster_preload, ramster_preloads);
+
+static DEFINE_PER_CPU(unsigned char *, ramster_remoteputmem1);
+static DEFINE_PER_CPU(unsigned char *, ramster_remoteputmem2);
+
+static struct kmem_cache *ramster_flnode_cache __read_mostly;
+
+static struct flushlist_node *ramster_flnode_alloc(struct tmem_pool *pool)
+{
+	struct flushlist_node *flnode = NULL;
+	struct ramster_preload *kp;
+
+	kp = &__get_cpu_var(ramster_preloads);
+	flnode = kp->flnode;
+	BUG_ON(flnode == NULL);
+	kp->flnode = NULL;
+	ramster_flnodes = atomic_inc_return(&ramster_flnodes_atomic);
+	if (ramster_flnodes > ramster_flnodes_max)
+		ramster_flnodes_max = ramster_flnodes;
+	return flnode;
+}
+
+/* the "flush list" asynchronously collects pages to remotely flush */
+#define FLUSH_ENTIRE_OBJECT ((uint32_t)-1)
+static void ramster_flnode_free(struct flushlist_node *flnode,
+				struct tmem_pool *pool)
+{
+	int flnodes;
+
+	flnodes = atomic_dec_return(&ramster_flnodes_atomic);
+	BUG_ON(flnodes < 0);
+	kmem_cache_free(ramster_flnode_cache, flnode);
+}
+
+int ramster_do_preload_flnode(struct tmem_pool *pool)
+{
+	struct ramster_preload *kp;
+	struct flushlist_node *flnode;
+	int ret = -ENOMEM;
+
+	BUG_ON(!irqs_disabled());
+	if (unlikely(ramster_flnode_cache == NULL))
+		BUG();
+	kp = &__get_cpu_var(ramster_preloads);
+	flnode = kmem_cache_alloc(ramster_flnode_cache, GFP_ATOMIC);
+	if (unlikely(flnode == NULL) && kp->flnode == NULL)
+		BUG();  /* FIXME handle more gracefully, but how??? */
+	else if (kp->flnode == NULL)
+		kp->flnode = flnode;
+	else
+		kmem_cache_free(ramster_flnode_cache, flnode);
+	return ret;
+}
+
+/*
+ * Called by the message handler after a (still compressed) page has been
+ * fetched from the remote machine in response to an "is_remote" tmem_get
+ * or persistent tmem_localify.  For a tmem_get, "extra" is the address of
+ * the page that is to be filled to successfully resolve the tmem_get; for
+ * a (persistent) tmem_localify, "extra" is NULL (as the data is placed only
+ * in the local zcache).  "data" points to "size" bytes of (compressed) data
+ * passed in the message.  In the case of a persistent remote get, if
+ * pre-allocation was successful (see ramster_repatriate_preload), the page
+ * is placed into both local zcache and at "extra".
+ */
+int ramster_localify(int pool_id, struct tmem_oid *oidp, uint32_t index,
+			char *data, unsigned int size, void *extra)
+{
+	int ret = -ENOENT;
+	unsigned long flags;
+	struct tmem_pool *pool;
+	bool eph, delete = false;
+	void *pampd, *saved_hb;
+	struct tmem_obj *obj;
+
+	pool = zcache_get_pool_by_id(LOCAL_CLIENT, pool_id);
+	if (unlikely(pool == NULL))
+		/* pool doesn't exist anymore */
+		goto out;
+	eph = is_ephemeral(pool);
+	local_irq_save(flags);  /* FIXME: maybe only disable softirqs? */
+	pampd = tmem_localify_get_pampd(pool, oidp, index, &obj, &saved_hb);
+	if (pampd == NULL) {
+		/* hmmm... must have been a flush while waiting */
+#ifdef RAMSTER_TESTING
+		pr_err("UNTESTED pampd==NULL in ramster_localify\n");
+#endif
+		if (eph)
+			ramster_remote_eph_pages_unsucc_get++;
+		else
+			ramster_remote_pers_pages_unsucc_get++;
+		obj = NULL;
+		goto finish;
+	} else if (unlikely(!pampd_is_remote(pampd))) {
+		/* hmmm... must have been a dup put while waiting */
+#ifdef RAMSTER_TESTING
+		pr_err("UNTESTED dup while waiting in ramster_localify\n");
+#endif
+		if (eph)
+			ramster_remote_eph_pages_unsucc_get++;
+		else
+			ramster_remote_pers_pages_unsucc_get++;
+		obj = NULL;
+		pampd = NULL;
+		ret = -EEXIST;
+		goto finish;
+	} else if (size == 0) {
+		/* no remote data, delete the local is_remote pampd */
+		pampd = NULL;
+		if (eph)
+			ramster_remote_eph_pages_unsucc_get++;
+		else
+			BUG();
+		delete = true;
+		goto finish;
+	}
+	if (pampd_is_intransit(pampd)) {
+		/*
+		 *  a pampd is marked intransit if it is remote and space has
+		 *  been allocated for it locally (note, only happens for
+		 *  persistent pages, in which case the remote copy is freed)
+		 */
+		BUG_ON(eph);
+		pampd = pampd_mask_intransit_and_remote(pampd);
+		zbud_copy_to_zbud(pampd, data, size);
+	} else {
+		/*
+		 * setting pampd to NULL tells tmem_localify_finish to leave
+		 * pampd alone... meaning it is left pointing to the
+		 * remote copy
+		 */
+		pampd = NULL;
+		obj = NULL;
+	}
+	/*
+	 * but in all cases, we decompress direct-to-memory to complete
+	 * the remotify and return success
+	 */
+	BUG_ON(extra == NULL);
+	zcache_decompress_to_page(data, size, (struct page *)extra);
+	if (eph)
+		ramster_remote_eph_pages_succ_get++;
+	else
+		ramster_remote_pers_pages_succ_get++;
+	ret = 0;
+finish:
+	tmem_localify_finish(obj, index, pampd, saved_hb, delete);
+	zcache_put_pool(pool);
+	local_irq_restore(flags);
+out:
+	return ret;
+}
+
+void ramster_pampd_new_obj(struct tmem_obj *obj)
+{
+	obj->extra = NULL;
+}
+
+void ramster_pampd_free_obj(struct tmem_pool *pool, struct tmem_obj *obj,
+				bool pool_destroy)
+{
+	struct flushlist_node *flnode;
+
+	BUG_ON(preemptible());
+	if (obj->extra == NULL)
+		return;
+	if (pool_destroy && is_ephemeral(pool))
+		/* FIXME don't bother with remote eph data for now */
+		return;
+	BUG_ON(!pampd_is_remote(obj->extra));
+	flnode = ramster_flnode_alloc(pool);
+	flnode->xh.client_id = pampd_remote_node(obj->extra);
+	flnode->xh.pool_id = pool->pool_id;
+	flnode->xh.oid = obj->oid;
+	flnode->xh.index = FLUSH_ENTIRE_OBJECT;
+	flnode->rem_op.op = RAMSTER_REMOTIFY_FLUSH_OBJ;
+	spin_lock(&ramster_rem_op_list_lock);
+	list_add(&flnode->rem_op.list, &ramster_rem_op_list);
+	spin_unlock(&ramster_rem_op_list_lock);
+}
+
+/*
+ * Called on a remote persistent tmem_get to attempt to preallocate
+ * local storage for the data contained in the remote persistent page.
+ * If successfully preallocated, returns the pampd, marked as remote and
+ * in_transit.  Else returns NULL.  Note that the appropriate tmem data
+ * structure must be locked.
+ */
+void *ramster_pampd_repatriate_preload(void *pampd, struct tmem_pool *pool,
+					struct tmem_oid *oidp, uint32_t index,
+					bool *intransit)
+{
+	int clen = pampd_remote_size(pampd), c;
+	void *ret_pampd = NULL;
+	unsigned long flags;
+	struct tmem_handle th;
+
+	BUG_ON(!pampd_is_remote(pampd));
+	BUG_ON(is_ephemeral(pool));
+	if (use_frontswap_exclusive_gets)
+		/* don't need local storage */
+		goto out;
+	if (pampd_is_intransit(pampd)) {
+		/*
+		 * to avoid multiple allocations (and maybe a memory leak)
+		 * don't preallocate if already in the process of being
+		 * repatriated
+		 */
+		*intransit = true;
+		goto out;
+	}
+	*intransit = false;
+	local_irq_save(flags);
+	th.client_id = pampd_remote_node(pampd);
+	th.pool_id = pool->pool_id;
+	th.oid = *oidp;
+	th.index = index;
+	ret_pampd = zcache_pampd_create(NULL, clen, true, false, &th);
+	if (ret_pampd != NULL) {
+		/*
+		 *  a pampd is marked intransit if it is remote and space has
+		 *  been allocated for it locally (note, only happens for
+		 *  persistent pages, in which case the remote copy is freed)
+		 */
+		ret_pampd = pampd_mark_intransit(ret_pampd);
+		c = atomic_dec_return(&ramster_remote_pers_pages);
+		WARN_ON_ONCE(c < 0);
+	} else {
+		ramster_pers_pages_remote_nomem++;
+	}
+	local_irq_restore(flags);
+out:
+	return ret_pampd;
+}
+
+/*
+ * Called on a remote tmem_get to invoke a message to fetch the page.
+ * Might sleep so no tmem locks can be held.  "extra" is passed
+ * all the way through the round-trip messaging to ramster_localify.
+ */
+int ramster_pampd_repatriate(void *fake_pampd, void *real_pampd,
+				struct tmem_pool *pool,
+				struct tmem_oid *oid, uint32_t index,
+				bool free, void *extra)
+{
+	struct tmem_xhandle xh;
+	int ret;
+
+	if (pampd_is_intransit(real_pampd))
+		/* have local space pre-reserved, so free remote copy */
+		free = true;
+	xh = tmem_xhandle_fill(LOCAL_CLIENT, pool, oid, index);
+	/* unreliable request/response for now */
+	ret = r2net_remote_async_get(&xh, free,
+					pampd_remote_node(fake_pampd),
+					pampd_remote_size(fake_pampd),
+					pampd_remote_cksum(fake_pampd),
+					extra);
+	return ret;
+}
+
+bool ramster_pampd_is_remote(void *pampd)
+{
+	return pampd_is_remote(pampd);
+}
+
+int ramster_pampd_replace_in_obj(void *new_pampd, struct tmem_obj *obj)
+{
+	int ret = -1;
+
+	if (new_pampd != NULL) {
+		if (obj->extra == NULL)
+			obj->extra = new_pampd;
+		/* enforce that all remote pages in an object reside
+		 * in the same node! */
+		else if (pampd_remote_node(new_pampd) !=
+				pampd_remote_node((void *)(obj->extra)))
+			BUG();
+		ret = 0;
+	}
+	return ret;
+}
+
+void *ramster_pampd_free(void *pampd, struct tmem_pool *pool,
+			      struct tmem_oid *oid, uint32_t index, bool acct)
+{
+	bool eph = is_ephemeral(pool);
+	void *local_pampd = NULL;
+	int c;
+
+	BUG_ON(preemptible());
+	BUG_ON(!pampd_is_remote(pampd));
+	WARN_ON(acct == false);
+	if (oid == NULL) {
+		/*
+		 * a NULL oid means to ignore this pampd free
+		 * as the remote freeing will be handled elsewhere
+		 */
+	} else if (eph) {
+		/* FIXME remote flush optional but probably good idea */
+	} else if (pampd_is_intransit(pampd)) {
+		/* did a pers remote get_and_free, so just free local */
+		local_pampd = pampd_mask_intransit_and_remote(pampd);
+	} else {
+		struct flushlist_node *flnode =
+			ramster_flnode_alloc(pool);
+
+		flnode->xh.client_id = pampd_remote_node(pampd);
+		flnode->xh.pool_id = pool->pool_id;
+		flnode->xh.oid = *oid;
+		flnode->xh.index = index;
+		flnode->rem_op.op = RAMSTER_REMOTIFY_FLUSH_PAGE;
+		spin_lock(&ramster_rem_op_list_lock);
+		list_add(&flnode->rem_op.list, &ramster_rem_op_list);
+		spin_unlock(&ramster_rem_op_list_lock);
+		c = atomic_dec_return(&ramster_remote_pers_pages);
+		WARN_ON_ONCE(c < 0);
+	}
+	return local_pampd;
+}
+
+void ramster_count_foreign_pages(bool eph, int count)
+{
+	int c;
+
+	BUG_ON(count != 1 && count != -1);
+	if (eph) {
+		if (count > 0) {
+			c = atomic_inc_return(
+					&ramster_foreign_eph_pages_atomic);
+			if (c > ramster_foreign_eph_pages_max)
+				ramster_foreign_eph_pages_max = c;
+		} else {
+			c = atomic_dec_return(&ramster_foreign_eph_pages_atomic);
+			WARN_ON_ONCE(c < 0);
+		}
+		ramster_foreign_eph_pages = c;
+	} else {
+		if (count > 0) {
+			c = atomic_inc_return(
+					&ramster_foreign_pers_pages_atomic);
+			if (c > ramster_foreign_pers_pages_max)
+				ramster_foreign_pers_pages_max = c;
+		} else {
+			c = atomic_dec_return(
+					&ramster_foreign_pers_pages_atomic);
+			WARN_ON_ONCE(c < 0);
+		}
+		ramster_foreign_pers_pages = c;
+	}
+}
+
+/*
+ * For now, just push over a few pages every few seconds to
+ * ensure that it basically works
+ */
+static struct workqueue_struct *ramster_remotify_workqueue;
+static void ramster_remotify_process(struct work_struct *work);
+static DECLARE_DELAYED_WORK(ramster_remotify_worker,
+		ramster_remotify_process);
+
+static void ramster_remotify_queue_delayed_work(unsigned long delay)
+{
+	if (!queue_delayed_work(ramster_remotify_workqueue,
+				&ramster_remotify_worker, delay))
+		pr_err("ramster_remotify: bad workqueue\n");
+}
+
+static void ramster_remote_flush_page(struct flushlist_node *flnode)
+{
+	struct tmem_xhandle *xh;
+	int remotenode, ret;
+
+	preempt_disable();
+	xh = &flnode->xh;
+	remotenode = flnode->xh.client_id;
+	ret = r2net_remote_flush(xh, remotenode);
+	if (ret >= 0)
+		ramster_remote_pages_flushed++;
+	else
+		ramster_remote_page_flushes_failed++;
+	preempt_enable_no_resched();
+	ramster_flnode_free(flnode, NULL);
+}
+
+static void ramster_remote_flush_object(struct flushlist_node *flnode)
+{
+	struct tmem_xhandle *xh;
+	int remotenode, ret;
+
+	preempt_disable();
+	xh = &flnode->xh;
+	remotenode = flnode->xh.client_id;
+	ret = r2net_remote_flush_object(xh, remotenode);
+	if (ret >= 0)
+		ramster_remote_objects_flushed++;
+	else
+		ramster_remote_object_flushes_failed++;
+	preempt_enable_no_resched();
+	ramster_flnode_free(flnode, NULL);
+}
+
+int ramster_remotify_pageframe(bool eph)
+{
+	struct tmem_xhandle xh;
+	unsigned int size;
+	int remotenode, ret, zbuds;
+	struct tmem_pool *pool;
+	unsigned long flags;
+	unsigned char cksum;
+	char *p;
+	int i, j;
+	unsigned char *tmpmem[2];
+	struct tmem_handle th[2];
+	unsigned int zsize[2];
+
+	tmpmem[0] = __get_cpu_var(ramster_remoteputmem1);
+	tmpmem[1] = __get_cpu_var(ramster_remoteputmem2);
+	local_bh_disable();
+	zbuds = zbud_make_zombie_lru(&th[0], &tmpmem[0], &zsize[0], eph);
+	/* now OK to release lock set in caller */
+	local_bh_enable();
+	if (zbuds == 0)
+		goto out;
+	BUG_ON(zbuds > 2);
+	for (i = 0; i < zbuds; i++) {
+		xh.client_id = th[i].client_id;
+		xh.pool_id = th[i].pool_id;
+		xh.oid = th[i].oid;
+		xh.index = th[i].index;
+		size = zsize[i];
+		BUG_ON(size == 0 || size > zbud_max_buddy_size());
+		for (p = tmpmem[i], cksum = 0, j = 0; j < size; j++)
+			cksum += *p++;
+		ret = r2net_remote_put(&xh, tmpmem[i], size, eph, &remotenode);
+		if (ret != 0) {
+		/*
+		 * This is some form of a memory leak... if the remote put
+		 * fails, there will never be another attempt to remotify
+		 * this page.  But since we've dropped the zv pointer,
+		 * the page may have been freed or the data replaced
+		 * so we can't just "put it back" in the remote op list.
+		 * Even if we could, not sure where to put it in the list
+		 * because there may be flushes that must be strictly
+		 * ordered vs the put.  So leave this as a FIXME for now.
+		 * But count them so we know if it becomes a problem.
+		 */
+			if (eph)
+				ramster_eph_pages_remote_failed++;
+			else
+				ramster_pers_pages_remote_failed++;
+			break;
+		} else {
+			if (!eph)
+				atomic_inc(&ramster_remote_pers_pages);
+		}
+		if (eph)
+			ramster_eph_pages_remoted++;
+		else
+			ramster_pers_pages_remoted++;
+		/*
+		 * data was successfully remoted so change the local version to
+		 * point to the remote node where it landed
+		 */
+		local_bh_disable();
+		pool = zcache_get_pool_by_id(LOCAL_CLIENT, xh.pool_id);
+		local_irq_save(flags);
+		(void)tmem_replace(pool, &xh.oid, xh.index,
+				pampd_make_remote(remotenode, size, cksum));
+		local_irq_restore(flags);
+		zcache_put_pool(pool);
+		local_bh_enable();
+	}
+out:
+	return zbuds;
+}
+
+static void zcache_do_remotify_flushes(void)
+{
+	struct ramster_remotify_hdr *rem_op;
+	union remotify_list_node *u;
+
+	while (1) {
+		spin_lock(&ramster_rem_op_list_lock);
+		if (list_empty(&ramster_rem_op_list)) {
+			spin_unlock(&ramster_rem_op_list_lock);
+			goto out;
+		}
+		rem_op = list_first_entry(&ramster_rem_op_list,
+				struct ramster_remotify_hdr, list);
+		list_del_init(&rem_op->list);
+		spin_unlock(&ramster_rem_op_list_lock);
+		u = (union remotify_list_node *)rem_op;
+		switch (rem_op->op) {
+		case RAMSTER_REMOTIFY_FLUSH_PAGE:
+			ramster_remote_flush_page((struct flushlist_node *)u);
+			break;
+		case RAMSTER_REMOTIFY_FLUSH_OBJ:
+			ramster_remote_flush_object((struct flushlist_node *)u);
+			break;
+		default:
+			BUG();
+		}
+	}
+out:
+	return;
+}
+
+static void ramster_remotify_process(struct work_struct *work)
+{
+	static bool remotify_in_progress;
+	int i;
+
+	BUG_ON(irqs_disabled());
+	if (remotify_in_progress)
+		goto requeue;
+	if (ramster_remote_target_nodenum == -1)
+		goto requeue;
+	remotify_in_progress = true;
+	if (use_cleancache && ramster_eph_remotify_enable) {
+		for (i = 0; i < 100; i++) {
+			zcache_do_remotify_flushes();
+			(void)ramster_remotify_pageframe(true);
+		}
+	}
+	if (use_frontswap && ramster_pers_remotify_enable) {
+		for (i = 0; i < 100; i++) {
+			zcache_do_remotify_flushes();
+			(void)ramster_remotify_pageframe(false);
+		}
+	}
+	remotify_in_progress = false;
+requeue:
+	ramster_remotify_queue_delayed_work(HZ);
+}
+
+void __init ramster_remotify_init(void)
+{
+	unsigned long n = 60UL;
+	ramster_remotify_workqueue =
+		create_singlethread_workqueue("ramster_remotify");
+	ramster_remotify_queue_delayed_work(n * HZ);
+}
+
+static ssize_t ramster_manual_node_up_show(struct kobject *kobj,
+				struct kobj_attribute *attr, char *buf)
+{
+	int i;
+	char *p = buf;
+	for (i = 0; i < MANUAL_NODES; i++)
+		if (ramster_nodes_manual_up[i])
+			p += sprintf(p, "%d ", i);
+	p += sprintf(p, "\n");
+	return p - buf;
+}
+
+static ssize_t ramster_manual_node_up_store(struct kobject *kobj,
+		struct kobj_attribute *attr, const char *buf, size_t count)
+{
+	int err;
+	unsigned long node_num;
+
+	err = kstrtoul(buf, 10, &node_num);
+	if (err) {
+		pr_err("ramster: bad strtoul?\n");
+		return -EINVAL;
+	}
+	if (node_num >= MANUAL_NODES) {
+		pr_err("ramster: bad node_num=%lu?\n", node_num);
+		return -EINVAL;
+	}
+	if (ramster_nodes_manual_up[node_num]) {
+		pr_err("ramster: node %d already up, ignoring\n",
+							(int)node_num);
+	} else {
+		ramster_nodes_manual_up[node_num] = true;
+		r2net_hb_node_up_manual((int)node_num);
+	}
+	return count;
+}
+
+static struct kobj_attribute ramster_manual_node_up_attr = {
+	.attr = { .name = "manual_node_up", .mode = 0644 },
+	.show = ramster_manual_node_up_show,
+	.store = ramster_manual_node_up_store,
+};
+
+static ssize_t ramster_remote_target_nodenum_show(struct kobject *kobj,
+				struct kobj_attribute *attr, char *buf)
+{
+	if (ramster_remote_target_nodenum == -1UL)
+		return sprintf(buf, "unset\n");
+	else
+		return sprintf(buf, "%d\n", ramster_remote_target_nodenum);
+}
+
+static ssize_t ramster_remote_target_nodenum_store(struct kobject *kobj,
+		struct kobj_attribute *attr, const char *buf, size_t count)
+{
+	int err;
+	unsigned long node_num;
+
+	err = kstrtoul(buf, 10, &node_num);
+	if (err) {
+		pr_err("ramster: bad strtoul?\n");
+		return -EINVAL;
+	} else if (node_num == -1UL) {
+		pr_err("ramster: disabling all remotification, "
+			"data may still reside on remote nodes however\n");
+		return -EINVAL;
+	} else if (node_num >= MANUAL_NODES) {
+		pr_err("ramster: bad node_num=%lu?\n", node_num);
+		return -EINVAL;
+	} else if (!ramster_nodes_manual_up[node_num]) {
+		pr_err("ramster: node %d not up, ignoring setting "
+			"of remotification target\n", (int)node_num);
+	} else if (r2net_remote_target_node_set((int)node_num) >= 0) {
+		pr_info("ramster: node %d set as remotification target\n",
+				(int)node_num);
+		ramster_remote_target_nodenum = (int)node_num;
+	} else {
+		pr_err("ramster: bad num to node node_num=%d?\n",
+				(int)node_num);
+		return -EINVAL;
+	}
+	return count;
+}
+
+static struct kobj_attribute ramster_remote_target_nodenum_attr = {
+	.attr = { .name = "remote_target_nodenum", .mode = 0644 },
+	.show = ramster_remote_target_nodenum_show,
+	.store = ramster_remote_target_nodenum_store,
+};
+
+#define RAMSTER_SYSFS_RO(_name) \
+	static ssize_t ramster_##_name##_show(struct kobject *kobj, \
+				struct kobj_attribute *attr, char *buf) \
+	{ \
+		return sprintf(buf, "%lu\n", ramster_##_name); \
+	} \
+	static struct kobj_attribute ramster_##_name##_attr = { \
+		.attr = { .name = __stringify(_name), .mode = 0444 }, \
+		.show = ramster_##_name##_show, \
+	}
+
+#define RAMSTER_SYSFS_RW(_name) \
+	static ssize_t ramster_##_name##_show(struct kobject *kobj, \
+				struct kobj_attribute *attr, char *buf) \
+	{ \
+		return sprintf(buf, "%lu\n", ramster_##_name); \
+	} \
+	static ssize_t ramster_##_name##_store(struct kobject *kobj, \
+		struct kobj_attribute *attr, const char *buf, size_t count) \
+	{ \
+		int err; \
+		unsigned long enable; \
+		err = kstrtoul(buf, 10, &enable); \
+		if (err) \
+			return -EINVAL; \
+		ramster_##_name = enable; \
+		return count; \
+	} \
+	static struct kobj_attribute ramster_##_name##_attr = { \
+		.attr = { .name = __stringify(_name), .mode = 0644 }, \
+		.show = ramster_##_name##_show, \
+		.store = ramster_##_name##_store, \
+	}
+
+#define RAMSTER_SYSFS_RO_ATOMIC(_name) \
+	static ssize_t ramster_##_name##_show(struct kobject *kobj, \
+				struct kobj_attribute *attr, char *buf) \
+	{ \
+	    return sprintf(buf, "%d\n", atomic_read(&ramster_##_name)); \
+	} \
+	static struct kobj_attribute ramster_##_name##_attr = { \
+		.attr = { .name = __stringify(_name), .mode = 0444 }, \
+		.show = ramster_##_name##_show, \
+	}
+
+RAMSTER_SYSFS_RO(interface_revision);
+RAMSTER_SYSFS_RO_ATOMIC(remote_pers_pages);
+RAMSTER_SYSFS_RW(pers_remotify_enable);
+RAMSTER_SYSFS_RW(eph_remotify_enable);
+
+static struct attribute *ramster_attrs[] = {
+	&ramster_interface_revision_attr.attr,
+	&ramster_remote_pers_pages_attr.attr,
+	&ramster_manual_node_up_attr.attr,
+	&ramster_remote_target_nodenum_attr.attr,
+	&ramster_pers_remotify_enable_attr.attr,
+	&ramster_eph_remotify_enable_attr.attr,
+	NULL,
+};
+
+static struct attribute_group ramster_attr_group = {
+	.attrs = ramster_attrs,
+	.name = "ramster",
+};
+
+/*
+ * frontswap selfshrinking
+ */
+
+/* In HZ, controls frequency of worker invocation. */
+static unsigned int selfshrink_interval __read_mostly = 5;
+/* Enable/disable with sysfs. */
+static bool frontswap_selfshrinking __read_mostly;
+
+static void selfshrink_process(struct work_struct *work);
+static DECLARE_DELAYED_WORK(selfshrink_worker, selfshrink_process);
+
+/* Enable/disable with kernel boot option. */
+static bool use_frontswap_selfshrink __initdata = true;
+
+/*
+ * The default values for the following parameters were deemed reasonable
+ * by experimentation, may be workload-dependent, and can all be
+ * adjusted via sysfs.
+ */
+
+/* Control rate for frontswap shrinking. Higher hysteresis is slower. */
+static unsigned int frontswap_hysteresis __read_mostly = 20;
+
+/*
+ * Number of selfshrink worker invocations to wait before observing that
+ * frontswap selfshrinking should commence. Note that selfshrinking does
+ * not use a separate worker thread.
+ */
+static unsigned int frontswap_inertia __read_mostly = 3;
+
+/* Countdown to next invocation of frontswap_shrink() */
+static unsigned long frontswap_inertia_counter;
+
+/*
+ * Invoked by the selfshrink worker thread, uses current number of pages
+ * in frontswap (frontswap_curr_pages()), previous status, and control
+ * values (hysteresis and inertia) to determine if frontswap should be
+ * shrunk and what the new frontswap size should be.  Note that
+ * frontswap_shrink is essentially a partial swapoff that immediately
+ * transfers pages from the "swap device" (frontswap) back into kernel
+ * RAM; despite the name, frontswap "shrinking" is very different from
+ * the "shrinker" interface used by the kernel MM subsystem to reclaim
+ * memory.
+ */
+static void frontswap_selfshrink(void)
+{
+	static unsigned long cur_frontswap_pages;
+	static unsigned long last_frontswap_pages;
+	static unsigned long tgt_frontswap_pages;
+
+	last_frontswap_pages = cur_frontswap_pages;
+	cur_frontswap_pages = frontswap_curr_pages();
+	if (!cur_frontswap_pages ||
+			(cur_frontswap_pages > last_frontswap_pages)) {
+		frontswap_inertia_counter = frontswap_inertia;
+		return;
+	}
+	if (frontswap_inertia_counter && --frontswap_inertia_counter)
+		return;
+	if (cur_frontswap_pages <= frontswap_hysteresis)
+		tgt_frontswap_pages = 0;
+	else
+		tgt_frontswap_pages = cur_frontswap_pages -
+			(cur_frontswap_pages / frontswap_hysteresis);
+	frontswap_shrink(tgt_frontswap_pages);
+}
+
+static int __init ramster_nofrontswap_selfshrink_setup(char *s)
+{
+	use_frontswap_selfshrink = false;
+	return 1;
+}
+
+__setup("noselfshrink", ramster_nofrontswap_selfshrink_setup);
+
+static void selfshrink_process(struct work_struct *work)
+{
+	if (frontswap_selfshrinking && frontswap_enabled) {
+		frontswap_selfshrink();
+		schedule_delayed_work(&selfshrink_worker,
+			selfshrink_interval * HZ);
+	}
+}
+
+void ramster_cpu_up(int cpu)
+{
+	unsigned char *p1 = kzalloc(PAGE_SIZE, GFP_KERNEL | __GFP_REPEAT);
+	unsigned char *p2 = kzalloc(PAGE_SIZE, GFP_KERNEL | __GFP_REPEAT);
+	BUG_ON(!p1 || !p2);
+	per_cpu(ramster_remoteputmem1, cpu) = p1;
+	per_cpu(ramster_remoteputmem2, cpu) = p2;
+}
+
+void ramster_cpu_down(int cpu)
+{
+	struct ramster_preload *kp;
+
+	kfree(per_cpu(ramster_remoteputmem1, cpu));
+	per_cpu(ramster_remoteputmem1, cpu) = NULL;
+	kfree(per_cpu(ramster_remoteputmem2, cpu));
+	per_cpu(ramster_remoteputmem2, cpu) = NULL;
+	kp = &per_cpu(ramster_preloads, cpu);
+	if (kp->flnode) {
+		kmem_cache_free(ramster_flnode_cache, kp->flnode);
+		kp->flnode = NULL;
+	}
+}
+
+void ramster_register_pamops(struct tmem_pamops *pamops)
+{
+	pamops->free_obj = ramster_pampd_free_obj;
+	pamops->new_obj = ramster_pampd_new_obj;
+	pamops->replace_in_obj = ramster_pampd_replace_in_obj;
+	pamops->is_remote = ramster_pampd_is_remote;
+	pamops->repatriate = ramster_pampd_repatriate;
+	pamops->repatriate_preload = ramster_pampd_repatriate_preload;
+}
+
+void __init ramster_init(bool cleancache, bool frontswap,
+				bool frontswap_exclusive_gets)
+{
+	int ret = 0;
+
+	if (cleancache)
+		use_cleancache = true;
+	if (frontswap)
+		use_frontswap = true;
+	if (frontswap_exclusive_gets)
+		use_frontswap_exclusive_gets = true;
+	ramster_debugfs_init();
+	ret = sysfs_create_group(mm_kobj, &ramster_attr_group);
+	if (ret)
+		pr_err("ramster: can't create sysfs for ramster\n");
+	(void)r2net_register_handlers();
+	INIT_LIST_HEAD(&ramster_rem_op_list);
+	ramster_flnode_cache = kmem_cache_create("ramster_flnode",
+				sizeof(struct flushlist_node), 0, 0, NULL);
+	frontswap_selfshrinking = use_frontswap_selfshrink;
+	if (frontswap_selfshrinking) {
+		pr_info("ramster: Initializing frontswap selfshrink driver.\n");
+		schedule_delayed_work(&selfshrink_worker,
+					selfshrink_interval * HZ);
+	}
+	ramster_remotify_init();
+}
diff --git a/drivers/staging/ramster/ramster/ramster.h b/drivers/staging/ramster/ramster/ramster.h
new file mode 100644
index 00000000000..12ae56f09ca
--- /dev/null
+++ b/drivers/staging/ramster/ramster/ramster.h
@@ -0,0 +1,161 @@
+/*
+ * ramster.h
+ *
+ * Peer-to-peer transcendent memory
+ *
+ * Copyright (c) 2009-2012, Dan Magenheimer, Oracle Corp.
+ */
+
+#ifndef _RAMSTER_RAMSTER_H_
+#define _RAMSTER_RAMSTER_H_
+
+#include "../tmem.h"
+
+enum ramster_remotify_op {
+	RAMSTER_REMOTIFY_FLUSH_PAGE,
+	RAMSTER_REMOTIFY_FLUSH_OBJ,
+};
+
+struct ramster_remotify_hdr {
+	enum ramster_remotify_op op;
+	struct list_head list;
+};
+
+struct flushlist_node {
+	struct ramster_remotify_hdr rem_op;
+	struct tmem_xhandle xh;
+};
+
+struct ramster_preload {
+	struct flushlist_node *flnode;
+};
+
+union remotify_list_node {
+	struct ramster_remotify_hdr rem_op;
+	struct {
+		struct ramster_remotify_hdr rem_op;
+		struct tmem_handle th;
+	} zbud_hdr;
+	struct flushlist_node flist;
+};
+
+/*
+ * format of remote pampd:
+ *   bit 0 is reserved for zbud (in-page buddy selection)
+ *   bit 1 == intransit
+ *   bit 2 == is_remote... if this bit is set, then
+ *   bit 3-10 == remotenode
+ *   bit 11-23 == size
+ *   bit 24-31 == cksum
+ */
+#define FAKE_PAMPD_INTRANSIT_BITS	1
+#define FAKE_PAMPD_ISREMOTE_BITS	1
+#define FAKE_PAMPD_REMOTENODE_BITS	8
+#define FAKE_PAMPD_REMOTESIZE_BITS	13
+#define FAKE_PAMPD_CHECKSUM_BITS	8
+
+#define FAKE_PAMPD_INTRANSIT_SHIFT	1
+#define FAKE_PAMPD_ISREMOTE_SHIFT	(FAKE_PAMPD_INTRANSIT_SHIFT + \
+					 FAKE_PAMPD_INTRANSIT_BITS)
+#define FAKE_PAMPD_REMOTENODE_SHIFT	(FAKE_PAMPD_ISREMOTE_SHIFT + \
+					 FAKE_PAMPD_ISREMOTE_BITS)
+#define FAKE_PAMPD_REMOTESIZE_SHIFT	(FAKE_PAMPD_REMOTENODE_SHIFT + \
+					 FAKE_PAMPD_REMOTENODE_BITS)
+#define FAKE_PAMPD_CHECKSUM_SHIFT	(FAKE_PAMPD_REMOTESIZE_SHIFT + \
+					 FAKE_PAMPD_REMOTESIZE_BITS)
+
+#define FAKE_PAMPD_MASK(x)		((1UL << (x)) - 1)
+
+static inline void *pampd_make_remote(int remotenode, size_t size,
+					unsigned char cksum)
+{
+	unsigned long fake_pampd = 0;
+	fake_pampd |= 1UL << FAKE_PAMPD_ISREMOTE_SHIFT;
+	fake_pampd |= ((unsigned long)remotenode &
+			FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTENODE_BITS)) <<
+				FAKE_PAMPD_REMOTENODE_SHIFT;
+	fake_pampd |= ((unsigned long)size &
+			FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTESIZE_BITS)) <<
+				FAKE_PAMPD_REMOTESIZE_SHIFT;
+	fake_pampd |= ((unsigned long)cksum &
+			FAKE_PAMPD_MASK(FAKE_PAMPD_CHECKSUM_BITS)) <<
+				FAKE_PAMPD_CHECKSUM_SHIFT;
+	return (void *)fake_pampd;
+}
+
+static inline unsigned int pampd_remote_node(void *pampd)
+{
+	unsigned long fake_pampd = (unsigned long)pampd;
+	return (fake_pampd >> FAKE_PAMPD_REMOTENODE_SHIFT) &
+		FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTENODE_BITS);
+}
+
+static inline unsigned int pampd_remote_size(void *pampd)
+{
+	unsigned long fake_pampd = (unsigned long)pampd;
+	return (fake_pampd >> FAKE_PAMPD_REMOTESIZE_SHIFT) &
+		FAKE_PAMPD_MASK(FAKE_PAMPD_REMOTESIZE_BITS);
+}
+
+static inline unsigned char pampd_remote_cksum(void *pampd)
+{
+	unsigned long fake_pampd = (unsigned long)pampd;
+	return (fake_pampd >> FAKE_PAMPD_CHECKSUM_SHIFT) &
+		FAKE_PAMPD_MASK(FAKE_PAMPD_CHECKSUM_BITS);
+}
+
+static inline bool pampd_is_remote(void *pampd)
+{
+	unsigned long fake_pampd = (unsigned long)pampd;
+	return (fake_pampd >> FAKE_PAMPD_ISREMOTE_SHIFT) &
+		FAKE_PAMPD_MASK(FAKE_PAMPD_ISREMOTE_BITS);
+}
+
+static inline bool pampd_is_intransit(void *pampd)
+{
+	unsigned long fake_pampd = (unsigned long)pampd;
+	return (fake_pampd >> FAKE_PAMPD_INTRANSIT_SHIFT) &
+		FAKE_PAMPD_MASK(FAKE_PAMPD_INTRANSIT_BITS);
+}
+
+/* note that it is a BUG for intransit to be set without isremote also set */
+static inline void *pampd_mark_intransit(void *pampd)
+{
+	unsigned long fake_pampd = (unsigned long)pampd;
+
+	fake_pampd |= 1UL << FAKE_PAMPD_ISREMOTE_SHIFT;
+	fake_pampd |= 1UL << FAKE_PAMPD_INTRANSIT_SHIFT;
+	return (void *)fake_pampd;
+}
+
+static inline void *pampd_mask_intransit_and_remote(void *marked_pampd)
+{
+	unsigned long pampd = (unsigned long)marked_pampd;
+
+	pampd &= ~(1UL << FAKE_PAMPD_INTRANSIT_SHIFT);
+	pampd &= ~(1UL << FAKE_PAMPD_ISREMOTE_SHIFT);
+	return (void *)pampd;
+}
+
+extern int r2net_remote_async_get(struct tmem_xhandle *,
+				bool, int, size_t, uint8_t, void *extra);
+extern int r2net_remote_put(struct tmem_xhandle *, char *, size_t,
+				bool, int *);
+extern int r2net_remote_flush(struct tmem_xhandle *, int);
+extern int r2net_remote_flush_object(struct tmem_xhandle *, int);
+extern int r2net_register_handlers(void);
+extern int r2net_remote_target_node_set(int);
+
+extern int ramster_remotify_pageframe(bool);
+extern void ramster_init(bool, bool, bool);
+extern void ramster_register_pamops(struct tmem_pamops *);
+extern int ramster_localify(int, struct tmem_oid *oidp, uint32_t, char *,
+				unsigned int, void *);
+extern void *ramster_pampd_free(void *, struct tmem_pool *, struct tmem_oid *,
+				uint32_t, bool);
+extern void ramster_count_foreign_pages(bool, int);
+extern int ramster_do_preload_flnode(struct tmem_pool *);
+extern void ramster_cpu_up(int);
+extern void ramster_cpu_down(int);
+
+#endif /* _RAMSTER_RAMSTER_H */
diff --git a/drivers/staging/ramster/cluster/ramster_nodemanager.h b/drivers/staging/ramster/ramster/ramster_nodemanager.h
index 49f879d943a..49f879d943a 100644
--- a/drivers/staging/ramster/cluster/ramster_nodemanager.h
+++ b/drivers/staging/ramster/ramster/ramster_nodemanager.h
diff --git a/drivers/staging/ramster/cluster/tcp.c b/drivers/staging/ramster/ramster/tcp.c
index d0a07d722b6..aa2a1a763aa 100644
--- a/drivers/staging/ramster/cluster/tcp.c
+++ b/drivers/staging/ramster/ramster/tcp.c
@@ -541,8 +541,7 @@ static void r2net_set_nn_state(struct r2net_node *nn,
 	}
 
 	if (was_valid && !valid) {
-		printk(KERN_NOTICE "ramster: No longer connected to "
-		       SC_NODEF_FMT "\n",
+		pr_notice("ramster: No longer connected to " SC_NODEF_FMT "\n",
 			old_sc->sc_node->nd_name, old_sc->sc_node->nd_num,
 			&old_sc->sc_node->nd_ipv4_address,
 			ntohs(old_sc->sc_node->nd_ipv4_port));
@@ -551,7 +550,7 @@ static void r2net_set_nn_state(struct r2net_node *nn,
 
 	if (!was_valid && valid) {
 		cancel_delayed_work(&nn->nn_connect_expired);
-		printk(KERN_NOTICE "ramster: %s " SC_NODEF_FMT "\n",
+		pr_notice("ramster: %s " SC_NODEF_FMT "\n",
 		       r2nm_this_node() > sc->sc_node->nd_num ?
 		       "Connected to" : "Accepted connection from",
 		       sc->sc_node->nd_name, sc->sc_node->nd_num,
@@ -644,7 +643,7 @@ static void r2net_state_change(struct sock *sk)
 		r2net_sc_queue_work(sc, &sc->sc_connect_work);
 		break;
 	default:
-		printk(KERN_INFO "ramster: Connection to "
+		pr_info("ramster: Connection to "
 			SC_NODEF_FMT " shutdown, state %d\n",
 			sc->sc_node->nd_name, sc->sc_node->nd_num,
 			&sc->sc_node->nd_ipv4_address,
@@ -1160,7 +1159,8 @@ int r2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec,
 
 	/* wait on other node's handler */
 	r2net_set_nst_status_time(&nst);
-	wait_event(nsw.ns_wq, r2net_nsw_completed(nn, &nsw));
+	wait_event(nsw.ns_wq, r2net_nsw_completed(nn, &nsw) ||
+			nn->nn_persistent_error || !nn->nn_sc_valid);
 
 	r2net_update_send_stats(&nst, sc);
 
@@ -1325,8 +1325,10 @@ static int r2net_process_message(struct r2net_sock_container *sc,
 	if (be16_to_cpu(hdr->data_len) > nmh->nh_max_len)
 		syserr = R2NET_ERR_OVERFLOW;
 
-	if (syserr != R2NET_ERR_NONE)
+	if (syserr != R2NET_ERR_NONE) {
+		pr_err("ramster_r2net, message length problem\n");
 		goto out_respond;
+	}
 
 	r2net_set_func_start_time(sc);
 	sc->sc_msg_key = be32_to_cpu(hdr->key);
@@ -1393,7 +1395,7 @@ static int r2net_check_handshake(struct r2net_sock_container *sc)
 	struct r2net_node *nn = r2net_nn_from_num(sc->sc_node->nd_num);
 
 	if (hand->protocol_version != cpu_to_be64(R2NET_PROTOCOL_VERSION)) {
-		printk(KERN_NOTICE "ramster: " SC_NODEF_FMT " Advertised net "
+		pr_notice("ramster: " SC_NODEF_FMT " Advertised net "
 		       "protocol version %llu but %llu is required. "
 		       "Disconnecting.\n", sc->sc_node->nd_name,
 			sc->sc_node->nd_num, &sc->sc_node->nd_ipv4_address,
@@ -1413,7 +1415,7 @@ static int r2net_check_handshake(struct r2net_sock_container *sc)
 	 */
 	if (be32_to_cpu(hand->r2net_idle_timeout_ms) !=
 				r2net_idle_timeout()) {
-		printk(KERN_NOTICE "ramster: " SC_NODEF_FMT " uses a network "
+		pr_notice("ramster: " SC_NODEF_FMT " uses a network "
 		       "idle timeout of %u ms, but we use %u ms locally. "
 		       "Disconnecting.\n", sc->sc_node->nd_name,
 			sc->sc_node->nd_num, &sc->sc_node->nd_ipv4_address,
@@ -1426,7 +1428,7 @@ static int r2net_check_handshake(struct r2net_sock_container *sc)
 
 	if (be32_to_cpu(hand->r2net_keepalive_delay_ms) !=
 			r2net_keepalive_delay()) {
-		printk(KERN_NOTICE "ramster: " SC_NODEF_FMT " uses a keepalive "
+		pr_notice("ramster: " SC_NODEF_FMT " uses a keepalive "
 		       "delay of %u ms, but we use %u ms locally. "
 		       "Disconnecting.\n", sc->sc_node->nd_name,
 			sc->sc_node->nd_num, &sc->sc_node->nd_ipv4_address,
@@ -1439,7 +1441,7 @@ static int r2net_check_handshake(struct r2net_sock_container *sc)
 
 	if (be32_to_cpu(hand->r2hb_heartbeat_timeout_ms) !=
 			R2HB_MAX_WRITE_TIMEOUT_MS) {
-		printk(KERN_NOTICE "ramster: " SC_NODEF_FMT " uses a heartbeat "
+		pr_notice("ramster: " SC_NODEF_FMT " uses a heartbeat "
 		       "timeout of %u ms, but we use %u ms locally. "
 		       "Disconnecting.\n", sc->sc_node->nd_name,
 			sc->sc_node->nd_num, &sc->sc_node->nd_ipv4_address,
@@ -1516,6 +1518,7 @@ static int r2net_advance_rx(struct r2net_sock_container *sc)
 				if (be16_to_cpu(hdr->data_len) >
 				    R2NET_MAX_PAYLOAD_BYTES)
 					ret = -EOVERFLOW;
+				WARN_ON_ONCE(ret == -EOVERFLOW);
 			}
 		}
 		if (ret <= 0)
@@ -1583,7 +1586,6 @@ static void r2net_rx_until_empty(struct work_struct *work)
 		/* not permanent so read failed handshake can retry */
 		r2net_ensure_shutdown(nn, sc, 0);
 	}
-
 	sc_put(sc);
 }
 
@@ -1659,6 +1661,7 @@ static void r2net_sc_send_keep_req(struct work_struct *work)
 static void r2net_idle_timer(unsigned long data)
 {
 	struct r2net_sock_container *sc = (struct r2net_sock_container *)data;
+	struct r2net_node *nn = r2net_nn_from_num(sc->sc_node->nd_num);
 #ifdef CONFIG_DEBUG_FS
 	unsigned long msecs = ktime_to_ms(ktime_get()) -
 		ktime_to_ms(sc->sc_tv_timer);
@@ -1666,7 +1669,7 @@ static void r2net_idle_timer(unsigned long data)
 	unsigned long msecs = r2net_idle_timeout();
 #endif
 
-	printk(KERN_NOTICE "ramster: Connection to " SC_NODEF_FMT " has been "
+	pr_notice("ramster: Connection to " SC_NODEF_FMT " has been "
 	       "idle for %lu.%lu secs, shutting it down.\n",
 		sc->sc_node->nd_name, sc->sc_node->nd_num,
 		&sc->sc_node->nd_ipv4_address, ntohs(sc->sc_node->nd_ipv4_port),
@@ -1676,13 +1679,8 @@ static void r2net_idle_timer(unsigned long data)
 	 * Initialize the nn_timeout so that the next connection attempt
 	 * will continue in r2net_start_connect.
 	 */
-	/* Avoid spurious shutdowns... not sure if this is still necessary */
-	pr_err("ramster_idle_timer, skipping shutdown work\n");
-#if 0
-	/* old code used to do these two lines */
 	atomic_set(&nn->nn_timeout, 1);
 	r2net_sc_queue_work(sc, &sc->sc_shutdown_work);
-#endif
 }
 
 static void r2net_sc_reset_idle_timer(struct r2net_sock_container *sc)
@@ -1807,7 +1805,7 @@ static void r2net_start_connect(struct work_struct *work)
 
 out:
 	if (ret) {
-		printk(KERN_NOTICE "ramster: Connect attempt to " SC_NODEF_FMT
+		pr_notice("ramster: Connect attempt to " SC_NODEF_FMT
 		       " failed with errno %d\n", sc->sc_node->nd_name,
 			sc->sc_node->nd_num, &sc->sc_node->nd_ipv4_address,
 			ntohs(sc->sc_node->nd_ipv4_port), ret);
@@ -1833,7 +1831,7 @@ static void r2net_connect_expired(struct work_struct *work)
 
 	spin_lock(&nn->nn_lock);
 	if (!nn->nn_sc_valid) {
-		printk(KERN_NOTICE "ramster: No connection established with "
+		pr_notice("ramster: No connection established with "
 		       "node %u after %u.%u seconds, giving up.\n",
 		     r2net_num_from_nn(nn),
 		     r2net_idle_timeout() / 1000,
@@ -1969,7 +1967,7 @@ static int r2net_accept_one(struct socket *sock)
 
 	node = r2nm_get_node_by_ip(sin.sin_addr.s_addr);
 	if (node == NULL) {
-		printk(KERN_NOTICE "ramster: Attempt to connect from unknown "
+		pr_notice("ramster: Attempt to connect from unknown "
 		       "node at %pI4:%d\n", &sin.sin_addr.s_addr,
 		       ntohs(sin.sin_port));
 		ret = -EINVAL;
@@ -1978,7 +1976,7 @@ static int r2net_accept_one(struct socket *sock)
 
 	if (r2nm_this_node() >= node->nd_num) {
 		local_node = r2nm_get_node_by_num(r2nm_this_node());
-		printk(KERN_NOTICE "ramster: Unexpected connect attempt seen "
+		pr_notice("ramster: Unexpected connect attempt seen "
 		       "at node '%s' (%u, %pI4:%d) from node '%s' (%u, "
 		       "%pI4:%d)\n", local_node->nd_name, local_node->nd_num,
 		       &(local_node->nd_ipv4_address),
@@ -2008,7 +2006,7 @@ static int r2net_accept_one(struct socket *sock)
 		ret = 0;
 	spin_unlock(&nn->nn_lock);
 	if (ret) {
-		printk(KERN_NOTICE "ramster: Attempt to connect from node '%s' "
+		pr_notice("ramster: Attempt to connect from node '%s' "
 		       "at %pI4:%d but it already has an open connection\n",
 		       node->nd_name, &sin.sin_addr.s_addr,
 		       ntohs(sin.sin_port));
@@ -2091,8 +2089,7 @@ static int r2net_open_listening_sock(__be32 addr, __be16 port)
 
 	ret = sock_create(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock);
 	if (ret < 0) {
-		printk(KERN_ERR "ramster: Error %d while creating socket\n",
-			ret);
+		pr_err("ramster: Error %d while creating socket\n", ret);
 		goto out;
 	}
 
@@ -2106,17 +2103,17 @@ static int r2net_open_listening_sock(__be32 addr, __be16 port)
 	r2net_listen_sock = sock;
 	INIT_WORK(&r2net_listen_work, r2net_accept_many);
 
-	sock->sk->sk_reuse = SK_CAN_REUSE;
+	sock->sk->sk_reuse = /* SK_CAN_REUSE FIXME FOR 3.4 */ 1;
 	ret = sock->ops->bind(sock, (struct sockaddr *)&sin, sizeof(sin));
 	if (ret < 0) {
-		printk(KERN_ERR "ramster: Error %d while binding socket at "
-			"%pI4:%u\n", ret, &addr, ntohs(port));
+		pr_err("ramster: Error %d while binding socket at %pI4:%u\n",
+			ret, &addr, ntohs(port));
 		goto out;
 	}
 
 	ret = sock->ops->listen(sock, 64);
 	if (ret < 0)
-		printk(KERN_ERR "ramster: Error %d while listening on %pI4:%u\n",
+		pr_err("ramster: Error %d while listening on %pI4:%u\n",
 		       ret, &addr, ntohs(port));
 
 out:
diff --git a/drivers/staging/ramster/cluster/tcp.h b/drivers/staging/ramster/ramster/tcp.h
index 9d05833452b..9d05833452b 100644
--- a/drivers/staging/ramster/cluster/tcp.h
+++ b/drivers/staging/ramster/ramster/tcp.h
diff --git a/drivers/staging/ramster/cluster/tcp_internal.h b/drivers/staging/ramster/ramster/tcp_internal.h
index 4d8cc9f96fd..4d8cc9f96fd 100644
--- a/drivers/staging/ramster/cluster/tcp_internal.h
+++ b/drivers/staging/ramster/ramster/tcp_internal.h
diff --git a/drivers/staging/ramster/tmem.c b/drivers/staging/ramster/tmem.c
index 8f2f6892d8d..a2b7e03b606 100644
--- a/drivers/staging/ramster/tmem.c
+++ b/drivers/staging/ramster/tmem.c
@@ -1,33 +1,43 @@
 /*
  * In-kernel transcendent memory (generic implementation)
  *
- * Copyright (c) 2009-2011, Dan Magenheimer, Oracle Corp.
+ * Copyright (c) 2009-2012, Dan Magenheimer, Oracle Corp.
  *
  * The primary purpose of Transcedent Memory ("tmem") is to map object-oriented
  * "handles" (triples containing a pool id, and object id, and an index), to
  * pages in a page-accessible memory (PAM).  Tmem references the PAM pages via
  * an abstract "pampd" (PAM page-descriptor), which can be operated on by a
  * set of functions (pamops).  Each pampd contains some representation of
- * PAGE_SIZE bytes worth of data. Tmem must support potentially millions of
- * pages and must be able to insert, find, and delete these pages at a
- * potential frequency of thousands per second concurrently across many CPUs,
- * (and, if used with KVM, across many vcpus across many guests).
- * Tmem is tracked with a hierarchy of data structures, organized by
- * the elements in a handle-tuple: pool_id, object_id, and page index.
- * One or more "clients" (e.g. guests) each provide one or more tmem_pools.
- * Each pool, contains a hash table of rb_trees of tmem_objs.  Each
- * tmem_obj contains a radix-tree-like tree of pointers, with intermediate
- * nodes called tmem_objnodes.  Each leaf pointer in this tree points to
- * a pampd, which is accessible only through a small set of callbacks
- * registered by the PAM implementation (see tmem_register_pamops). Tmem
- * does all memory allocation via a set of callbacks registered by the tmem
- * host implementation (e.g. see tmem_register_hostops).
+ * PAGE_SIZE bytes worth of data. For those familiar with key-value stores,
+ * the tmem handle is a three-level hierarchical key, and the value is always
+ * reconstituted (but not necessarily stored) as PAGE_SIZE bytes and is
+ * referenced in the datastore by the pampd.  The hierarchy is required
+ * to ensure that certain invalidation functions can be performed efficiently
+ * (i.e. flush all indexes associated with this object_id, or
+ * flush all objects associated with this pool).
+ *
+ * Tmem must support potentially millions of pages and must be able to insert,
+ * find, and delete these pages at a potential frequency of thousands per
+ * second concurrently across many CPUs, (and, if used with KVM, across many
+ * vcpus across many guests).  Tmem is tracked with a hierarchy of data
+ * structures, organized by the elements in the handle-tuple: pool_id,
+ * object_id, and page index.  One or more "clients" (e.g. guests) each
+ * provide one or more tmem_pools.  Each pool, contains a hash table of
+ * rb_trees of tmem_objs.  Each tmem_obj contains a radix-tree-like tree
+ * of pointers, with intermediate nodes called tmem_objnodes.  Each leaf
+ * pointer in this tree points to a pampd, which is accessible only through
+ * a small set of callbacks registered by the PAM implementation (see
+ * tmem_register_pamops). Tmem only needs to memory allocation for objs
+ * and objnodes and this is done via a set of callbacks that must be
+ * registered by the tmem host implementation (e.g. see tmem_register_hostops).
  */
 
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/atomic.h>
+#ifdef CONFIG_RAMSTER
 #include <linux/delay.h>
+#endif
 
 #include "tmem.h"
 
@@ -52,7 +62,7 @@ void tmem_register_hostops(struct tmem_hostops *m)
 
 /*
  * A tmem host implementation must use this function to register
- * callbacks for a page-accessible memory (PAM) implementation
+ * callbacks for a page-accessible memory (PAM) implementation.
  */
 static struct tmem_pamops tmem_pamops;
 
@@ -67,42 +77,62 @@ void tmem_register_pamops(struct tmem_pamops *m)
  * So an rb_tree is an ideal data structure to manage tmem_objs.  But because
  * of the potentially huge number of tmem_objs, each pool manages a hashtable
  * of rb_trees to reduce search, insert, delete, and rebalancing time.
- * Each hashbucket also has a lock to manage concurrent access.
+ * Each hashbucket also has a lock to manage concurrent access and no
+ * searches, inserts, or deletions can be performed unless the lock is held.
+ * As a result, care must be taken to ensure tmem routines are not called
+ * recursively; the vast majority of the time, a recursive call may work
+ * but a deadlock will occur a small fraction of the time due to the
+ * hashbucket lock.
  *
- * The following routines manage tmem_objs.  When any tmem_obj is accessed,
- * the hashbucket lock must be held.
+ * The following routines manage tmem_objs.  In all of these routines,
+ * the hashbucket lock is already held.
  */
 
-/* searches for object==oid in pool, returns locked object if found */
-static struct tmem_obj *tmem_obj_find(struct tmem_hashbucket *hb,
-					struct tmem_oid *oidp)
+/* Search for object==oid in pool, returns object if found. */
+static struct tmem_obj *__tmem_obj_find(struct tmem_hashbucket *hb,
+					struct tmem_oid *oidp,
+					struct rb_node **parent,
+					struct rb_node ***link)
 {
-	struct rb_node *rbnode;
-	struct tmem_obj *obj;
+	struct rb_node *_parent = NULL, **rbnode;
+	struct tmem_obj *obj = NULL;
 
-	rbnode = hb->obj_rb_root.rb_node;
-	while (rbnode) {
-		BUG_ON(RB_EMPTY_NODE(rbnode));
-		obj = rb_entry(rbnode, struct tmem_obj, rb_tree_node);
+	rbnode = &hb->obj_rb_root.rb_node;
+	while (*rbnode) {
+		BUG_ON(RB_EMPTY_NODE(*rbnode));
+		_parent = *rbnode;
+		obj = rb_entry(*rbnode, struct tmem_obj,
+			       rb_tree_node);
 		switch (tmem_oid_compare(oidp, &obj->oid)) {
 		case 0: /* equal */
 			goto out;
 		case -1:
-			rbnode = rbnode->rb_left;
+			rbnode = &(*rbnode)->rb_left;
 			break;
 		case 1:
-			rbnode = rbnode->rb_right;
+			rbnode = &(*rbnode)->rb_right;
 			break;
 		}
 	}
+
+	if (parent)
+		*parent = _parent;
+	if (link)
+		*link = rbnode;
 	obj = NULL;
 out:
 	return obj;
 }
 
-static void tmem_pampd_destroy_all_in_obj(struct tmem_obj *);
+static struct tmem_obj *tmem_obj_find(struct tmem_hashbucket *hb,
+					struct tmem_oid *oidp)
+{
+	return __tmem_obj_find(hb, oidp, NULL, NULL);
+}
 
-/* free an object that has no more pampds in it */
+static void tmem_pampd_destroy_all_in_obj(struct tmem_obj *, bool);
+
+/* Free an object that has no more pampds in it. */
 static void tmem_obj_free(struct tmem_obj *obj, struct tmem_hashbucket *hb)
 {
 	struct tmem_pool *pool;
@@ -113,7 +143,7 @@ static void tmem_obj_free(struct tmem_obj *obj, struct tmem_hashbucket *hb)
 	pool = obj->pool;
 	BUG_ON(pool == NULL);
 	if (obj->objnode_tree_root != NULL) /* may be "stump" with no leaves */
-		tmem_pampd_destroy_all_in_obj(obj);
+		tmem_pampd_destroy_all_in_obj(obj, false);
 	BUG_ON(obj->objnode_tree_root != NULL);
 	BUG_ON((long)obj->objnode_count != 0);
 	atomic_dec(&pool->obj_count);
@@ -125,15 +155,14 @@ static void tmem_obj_free(struct tmem_obj *obj, struct tmem_hashbucket *hb)
 }
 
 /*
- * initialize, and insert an tmem_object_root (called only if find failed)
+ * Initialize, and insert an tmem_object_root (called only if find failed).
  */
 static void tmem_obj_init(struct tmem_obj *obj, struct tmem_hashbucket *hb,
 					struct tmem_pool *pool,
 					struct tmem_oid *oidp)
 {
 	struct rb_root *root = &hb->obj_rb_root;
-	struct rb_node **new = &(root->rb_node), *parent = NULL;
-	struct tmem_obj *this;
+	struct rb_node **new = NULL, *parent = NULL;
 
 	BUG_ON(pool == NULL);
 	atomic_inc(&pool->obj_count);
@@ -143,24 +172,15 @@ static void tmem_obj_init(struct tmem_obj *obj, struct tmem_hashbucket *hb,
 	obj->oid = *oidp;
 	obj->objnode_count = 0;
 	obj->pampd_count = 0;
-	(*tmem_pamops.new_obj)(obj);
+#ifdef CONFIG_RAMSTER
+	if (tmem_pamops.new_obj != NULL)
+		(*tmem_pamops.new_obj)(obj);
+#endif
 	SET_SENTINEL(obj, OBJ);
-	while (*new) {
-		BUG_ON(RB_EMPTY_NODE(*new));
-		this = rb_entry(*new, struct tmem_obj, rb_tree_node);
-		parent = *new;
-		switch (tmem_oid_compare(oidp, &this->oid)) {
-		case 0:
-			BUG(); /* already present; should never happen! */
-			break;
-		case -1:
-			new = &(*new)->rb_left;
-			break;
-		case 1:
-			new = &(*new)->rb_right;
-			break;
-		}
-	}
+
+	if (__tmem_obj_find(hb, oidp, &parent, &new))
+		BUG();
+
 	rb_link_node(&obj->rb_tree_node, parent, new);
 	rb_insert_color(&obj->rb_tree_node, root);
 }
@@ -170,7 +190,7 @@ static void tmem_obj_init(struct tmem_obj *obj, struct tmem_hashbucket *hb,
  * "ephemeral" vs "persistent".  These attributes apply to all tmem_objs
  * and all pampds that belong to a tmem_pool.  A tmem_pool is created
  * or deleted relatively rarely (for example, when a filesystem is
- * mounted or unmounted.
+ * mounted or unmounted).
  */
 
 /* flush all data from a pool and, optionally, free it */
@@ -188,7 +208,7 @@ static void tmem_pool_flush(struct tmem_pool *pool, bool destroy)
 		while (rbnode != NULL) {
 			obj = rb_entry(rbnode, struct tmem_obj, rb_tree_node);
 			rbnode = rb_next(rbnode);
-			tmem_pampd_destroy_all_in_obj(obj);
+			tmem_pampd_destroy_all_in_obj(obj, true);
 			tmem_obj_free(obj, hb);
 			(*tmem_hostops.obj_free)(obj, pool);
 		}
@@ -274,7 +294,7 @@ static void tmem_objnode_free(struct tmem_objnode *objnode)
 }
 
 /*
- * lookup index in object and return associated pampd (or NULL if not found)
+ * Lookup index in object and return associated pampd (or NULL if not found).
  */
 static void **__tmem_pampd_lookup_in_obj(struct tmem_obj *obj, uint32_t index)
 {
@@ -316,6 +336,7 @@ static void *tmem_pampd_lookup_in_obj(struct tmem_obj *obj, uint32_t index)
 	return slot != NULL ? *slot : NULL;
 }
 
+#ifdef CONFIG_RAMSTER
 static void *tmem_pampd_replace_in_obj(struct tmem_obj *obj, uint32_t index,
 					void *new_pampd, bool no_free)
 {
@@ -333,6 +354,7 @@ static void *tmem_pampd_replace_in_obj(struct tmem_obj *obj, uint32_t index,
 	}
 	return ret;
 }
+#endif
 
 static int tmem_pampd_add_to_obj(struct tmem_obj *obj, uint32_t index,
 					void *pampd)
@@ -470,7 +492,7 @@ out:
 	return slot;
 }
 
-/* recursively walk the objnode_tree destroying pampds and objnodes */
+/* Recursively walk the objnode_tree destroying pampds and objnodes. */
 static void tmem_objnode_node_destroy(struct tmem_obj *obj,
 					struct tmem_objnode *objnode,
 					unsigned int ht)
@@ -495,7 +517,8 @@ static void tmem_objnode_node_destroy(struct tmem_obj *obj,
 	}
 }
 
-static void tmem_pampd_destroy_all_in_obj(struct tmem_obj *obj)
+static void tmem_pampd_destroy_all_in_obj(struct tmem_obj *obj,
+						bool pool_destroy)
 {
 	if (obj->objnode_tree_root == NULL)
 		return;
@@ -510,7 +533,10 @@ static void tmem_pampd_destroy_all_in_obj(struct tmem_obj *obj)
 		obj->objnode_tree_height = 0;
 	}
 	obj->objnode_tree_root = NULL;
-	(*tmem_pamops.free_obj)(obj->pool, obj);
+#ifdef CONFIG_RAMSTER
+	if (tmem_pamops.free_obj != NULL)
+		(*tmem_pamops.free_obj)(obj->pool, obj, pool_destroy);
+#endif
 }
 
 /*
@@ -523,17 +549,16 @@ static void tmem_pampd_destroy_all_in_obj(struct tmem_obj *obj)
  */
 
 /*
- * "Put" a page, e.g. copy a page from the kernel into newly allocated
- * PAM space (if such space is available).  Tmem_put is complicated by
- * a corner case: What if a page with matching handle already exists in
- * tmem?  To guarantee coherency, one of two actions is necessary: Either
- * the data for the page must be overwritten, or the page must be
- * "flushed" so that the data is not accessible to a subsequent "get".
- * Since these "duplicate puts" are relatively rare, this implementation
- * always flushes for simplicity.
+ * "Put" a page, e.g. associate the passed pampd with the passed handle.
+ * Tmem_put is complicated by a corner case: What if a page with matching
+ * handle already exists in tmem?  To guarantee coherency, one of two
+ * actions is necessary: Either the data for the page must be overwritten,
+ * or the page must be "flushed" so that the data is not accessible to a
+ * subsequent "get".  Since these "duplicate puts" are relatively rare,
+ * this implementation always flushes for simplicity.
  */
 int tmem_put(struct tmem_pool *pool, struct tmem_oid *oidp, uint32_t index,
-		char *data, size_t size, bool raw, int ephemeral)
+		bool raw, void *pampd_to_use)
 {
 	struct tmem_obj *obj = NULL, *objfound = NULL, *objnew = NULL;
 	void *pampd = NULL, *pampd_del = NULL;
@@ -566,19 +591,17 @@ int tmem_put(struct tmem_pool *pool, struct tmem_oid *oidp, uint32_t index,
 	}
 	BUG_ON(obj == NULL);
 	BUG_ON(((objnew != obj) && (objfound != obj)) || (objnew == objfound));
-	pampd = (*tmem_pamops.create)(data, size, raw, ephemeral,
-					obj->pool, &obj->oid, index);
-	if (unlikely(pampd == NULL))
-		goto free;
+	pampd = pampd_to_use;
+	BUG_ON(pampd_to_use == NULL);
 	ret = tmem_pampd_add_to_obj(obj, index, pampd);
 	if (unlikely(ret == -ENOMEM))
 		/* may have partially built objnode tree ("stump") */
 		goto delete_and_free;
+	(*tmem_pamops.create_finish)(pampd, is_ephemeral(pool));
 	goto out;
 
 delete_and_free:
 	(void)tmem_pampd_delete_from_obj(obj, index);
-free:
 	if (pampd)
 		(*tmem_pamops.free)(pampd, pool, NULL, 0, true);
 	if (objnew) {
@@ -590,6 +613,16 @@ out:
 	return ret;
 }
 
+#ifdef CONFIG_RAMSTER
+/*
+ * For ramster only:  The following routines provide a two-step sequence
+ * to allow the caller to replace a pampd in the tmem data structures with
+ * another pampd. Here, we lookup the passed handle and, if found, return the
+ * associated pampd and object, leaving the hashbucket locked and returning
+ * a reference to it.  The caller is expected to immediately call the
+ * matching tmem_localify_finish routine which will handles the replacement
+ * and unlocks the hashbucket.
+ */
 void *tmem_localify_get_pampd(struct tmem_pool *pool, struct tmem_oid *oidp,
 				uint32_t index, struct tmem_obj **ret_obj,
 				void **saved_hb)
@@ -618,6 +651,7 @@ void tmem_localify_finish(struct tmem_obj *obj, uint32_t index,
 	if (pampd != NULL) {
 		BUG_ON(obj == NULL);
 		(void)tmem_pampd_replace_in_obj(obj, index, pampd, 1);
+		(*tmem_pamops.create_finish)(pampd, is_ephemeral(obj->pool));
 	} else if (delete) {
 		BUG_ON(obj == NULL);
 		(void)tmem_pampd_delete_from_obj(obj, index);
@@ -625,6 +659,9 @@ void tmem_localify_finish(struct tmem_obj *obj, uint32_t index,
 	spin_unlock(&hb->lock);
 }
 
+/*
+ * For ramster only.  Helper function to support asynchronous tmem_get.
+ */
 static int tmem_repatriate(void **ppampd, struct tmem_hashbucket *hb,
 				struct tmem_pool *pool, struct tmem_oid *oidp,
 				uint32_t index, bool free, char *data)
@@ -633,7 +670,6 @@ static int tmem_repatriate(void **ppampd, struct tmem_hashbucket *hb,
 	bool intransit = false;
 	int ret = 0;
 
-
 	if (!is_ephemeral(pool))
 		new_pampd = (*tmem_pamops.repatriate_preload)(
 				old_pampd, pool, oidp, index, &intransit);
@@ -646,60 +682,91 @@ static int tmem_repatriate(void **ppampd, struct tmem_hashbucket *hb,
 	if (!intransit)
 		ret = (*tmem_pamops.repatriate)(old_pampd, new_pampd, pool,
 						oidp, index, free, data);
+	if (ret == -EAGAIN) {
+		/* rare I think, but should cond_resched()??? */
+		usleep_range(10, 1000);
+	} else if (ret == -ENOTCONN || ret == -EHOSTDOWN) {
+		ret = -1;
+	} else if (ret != 0 && ret != -ENOENT) {
+		ret = -1;
+	}
+	/* note hb->lock has now been unlocked */
+	return ret;
+}
+
+/*
+ * For ramster only.  If a page in tmem matches the handle, replace the
+ * page so that any subsequent "get" gets the new page.  Returns 0 if
+ * there was a page to replace, else returns -1.
+ */
+int tmem_replace(struct tmem_pool *pool, struct tmem_oid *oidp,
+			uint32_t index, void *new_pampd)
+{
+	struct tmem_obj *obj;
+	int ret = -1;
+	struct tmem_hashbucket *hb;
+
+	hb = &pool->hashbucket[tmem_oid_hash(oidp)];
+	spin_lock(&hb->lock);
+	obj = tmem_obj_find(hb, oidp);
+	if (obj == NULL)
+		goto out;
+	new_pampd = tmem_pampd_replace_in_obj(obj, index, new_pampd, 0);
+	/* if we bug here, pamops wasn't properly set up for ramster */
+	BUG_ON(tmem_pamops.replace_in_obj == NULL);
+	ret = (*tmem_pamops.replace_in_obj)(new_pampd, obj);
+out:
+	spin_unlock(&hb->lock);
 	return ret;
 }
+#endif
 
 /*
- * "Get" a page, e.g. if one can be found, copy the tmem page with the
- * matching handle from PAM space to the kernel.  By tmem definition,
- * when a "get" is successful on an ephemeral page, the page is "flushed",
- * and when a "get" is successful on a persistent page, the page is retained
- * in tmem.  Note that to preserve
+ * "Get" a page, e.g. if a pampd can be found matching the passed handle,
+ * use a pamops callback to recreated the page from the pampd with the
+ * matching handle.  By tmem definition, when a "get" is successful on
+ * an ephemeral page, the page is "flushed", and when a "get" is successful
+ * on a persistent page, the page is retained in tmem.  Note that to preserve
  * coherency, "get" can never be skipped if tmem contains the data.
  * That is, if a get is done with a certain handle and fails, any
  * subsequent "get" must also fail (unless of course there is a
  * "put" done with the same handle).
-
  */
 int tmem_get(struct tmem_pool *pool, struct tmem_oid *oidp, uint32_t index,
-		char *data, size_t *size, bool raw, int get_and_free)
+		char *data, size_t *sizep, bool raw, int get_and_free)
 {
 	struct tmem_obj *obj;
-	void *pampd;
+	void *pampd = NULL;
 	bool ephemeral = is_ephemeral(pool);
 	int ret = -1;
 	struct tmem_hashbucket *hb;
 	bool free = (get_and_free == 1) || ((get_and_free == 0) && ephemeral);
-	bool lock_held = 0;
+	bool lock_held = false;
 	void **ppampd;
 
-again:
-	hb = &pool->hashbucket[tmem_oid_hash(oidp)];
-	spin_lock(&hb->lock);
-	lock_held = 1;
-	obj = tmem_obj_find(hb, oidp);
-	if (obj == NULL)
-		goto out;
-	ppampd = __tmem_pampd_lookup_in_obj(obj, index);
-	if (ppampd == NULL)
-		goto out;
-	if (tmem_pamops.is_remote(*ppampd)) {
-		ret = tmem_repatriate(ppampd, hb, pool, oidp,
-					index, free, data);
-		lock_held = 0; /* note hb->lock has been unlocked */
-		if (ret == -EAGAIN) {
-			/* rare I think, but should cond_resched()??? */
-			usleep_range(10, 1000);
-			goto again;
-		} else if (ret != 0) {
-			if (ret != -ENOENT)
-				pr_err("UNTESTED case in tmem_get, ret=%d\n",
-						ret);
-			ret = -1;
+	do {
+		hb = &pool->hashbucket[tmem_oid_hash(oidp)];
+		spin_lock(&hb->lock);
+		lock_held = true;
+		obj = tmem_obj_find(hb, oidp);
+		if (obj == NULL)
+			goto out;
+		ppampd = __tmem_pampd_lookup_in_obj(obj, index);
+		if (ppampd == NULL)
 			goto out;
+#ifdef CONFIG_RAMSTER
+		if ((tmem_pamops.is_remote != NULL) &&
+		     tmem_pamops.is_remote(*ppampd)) {
+			ret = tmem_repatriate(ppampd, hb, pool, oidp,
+						index, free, data);
+			/* tmem_repatriate releases hb->lock */
+			lock_held = false;
+			*sizep = PAGE_SIZE;
+			if (ret != -EAGAIN)
+				goto out;
 		}
-		goto out;
-	}
+#endif
+	} while (ret == -EAGAIN);
 	if (free)
 		pampd = tmem_pampd_delete_from_obj(obj, index);
 	else
@@ -715,10 +782,10 @@ again:
 	}
 	if (free)
 		ret = (*tmem_pamops.get_data_and_free)(
-				data, size, raw, pampd, pool, oidp, index);
+				data, sizep, raw, pampd, pool, oidp, index);
 	else
 		ret = (*tmem_pamops.get_data)(
-				data, size, raw, pampd, pool, oidp, index);
+				data, sizep, raw, pampd, pool, oidp, index);
 	if (ret < 0)
 		goto out;
 	ret = 0;
@@ -762,30 +829,6 @@ out:
 }
 
 /*
- * If a page in tmem matches the handle, replace the page so that any
- * subsequent "get" gets the new page.  Returns the new page if
- * there was a page to replace, else returns NULL.
- */
-int tmem_replace(struct tmem_pool *pool, struct tmem_oid *oidp,
-			uint32_t index, void *new_pampd)
-{
-	struct tmem_obj *obj;
-	int ret = -1;
-	struct tmem_hashbucket *hb;
-
-	hb = &pool->hashbucket[tmem_oid_hash(oidp)];
-	spin_lock(&hb->lock);
-	obj = tmem_obj_find(hb, oidp);
-	if (obj == NULL)
-		goto out;
-	new_pampd = tmem_pampd_replace_in_obj(obj, index, new_pampd, 0);
-	ret = (*tmem_pamops.replace_in_obj)(new_pampd, obj);
-out:
-	spin_unlock(&hb->lock);
-	return ret;
-}
-
-/*
  * "Flush" all pages in tmem matching this oid.
  */
 int tmem_flush_object(struct tmem_pool *pool, struct tmem_oid *oidp)
@@ -799,7 +842,7 @@ int tmem_flush_object(struct tmem_pool *pool, struct tmem_oid *oidp)
 	obj = tmem_obj_find(hb, oidp);
 	if (obj == NULL)
 		goto out;
-	tmem_pampd_destroy_all_in_obj(obj);
+	tmem_pampd_destroy_all_in_obj(obj, false);
 	tmem_obj_free(obj, hb);
 	(*tmem_hostops.obj_free)(obj, pool);
 	ret = 0;
diff --git a/drivers/staging/ramster/tmem.h b/drivers/staging/ramster/tmem.h
index 47f1918c831..adbe5a8f28a 100644
--- a/drivers/staging/ramster/tmem.h
+++ b/drivers/staging/ramster/tmem.h
@@ -3,23 +3,20 @@
  *
  * Transcendent memory
  *
- * Copyright (c) 2009-2011, Dan Magenheimer, Oracle Corp.
+ * Copyright (c) 2009-2012, Dan Magenheimer, Oracle Corp.
  */
 
 #ifndef _TMEM_H_
 #define _TMEM_H_
 
+#include <linux/types.h>
 #include <linux/highmem.h>
 #include <linux/hash.h>
 #include <linux/atomic.h>
 
 /*
- * These are pre-defined by the Xen<->Linux ABI
+ * These are defined by the Xen<->Linux ABI so should remain consistent
  */
-#define TMEM_PUT_PAGE			4
-#define TMEM_GET_PAGE			5
-#define TMEM_FLUSH_PAGE			6
-#define TMEM_FLUSH_OBJECT		7
 #define TMEM_POOL_PERSIST		1
 #define TMEM_POOL_SHARED		2
 #define TMEM_POOL_PRECOMPRESSED		4
@@ -31,7 +28,7 @@
  * sentinels have proven very useful for debugging but can be removed
  * or disabled before final merge.
  */
-#define SENTINELS
+#undef SENTINELS
 #ifdef SENTINELS
 #define DECL_SENTINEL uint32_t sentinel;
 #define SET_SENTINEL(_x, _y) (_x->sentinel = _y##_SENTINEL)
@@ -46,7 +43,7 @@
 #define ASSERT_INVERTED_SENTINEL(_x, _y) do { } while (0)
 #endif
 
-#define ASSERT_SPINLOCK(_l)	WARN_ON(!spin_is_locked(_l))
+#define ASSERT_SPINLOCK(_l)	lockdep_assert_held(_l)
 
 /*
  * A pool is the highest-level data structure managed by tmem and
@@ -88,31 +85,6 @@ struct tmem_oid {
 	uint64_t oid[3];
 };
 
-struct tmem_xhandle {
-	uint8_t client_id;
-	uint8_t xh_data_cksum;
-	uint16_t xh_data_size;
-	uint16_t pool_id;
-	struct tmem_oid oid;
-	uint32_t index;
-	void *extra;
-};
-
-static inline struct tmem_xhandle tmem_xhandle_fill(uint16_t client_id,
-					struct tmem_pool *pool,
-					struct tmem_oid *oidp,
-					uint32_t index)
-{
-	struct tmem_xhandle xh;
-	xh.client_id = client_id;
-	xh.xh_data_cksum = (uint8_t)-1;
-	xh.xh_data_size = (uint16_t)-1;
-	xh.pool_id = pool->pool_id;
-	xh.oid = *oidp;
-	xh.index = index;
-	return xh;
-}
-
 static inline void tmem_oid_set_invalid(struct tmem_oid *oidp)
 {
 	oidp->oid[0] = oidp->oid[1] = oidp->oid[2] = -1UL;
@@ -154,6 +126,34 @@ static inline unsigned tmem_oid_hash(struct tmem_oid *oidp)
 				TMEM_HASH_BUCKET_BITS);
 }
 
+#ifdef CONFIG_RAMSTER
+struct tmem_xhandle {
+	uint8_t client_id;
+	uint8_t xh_data_cksum;
+	uint16_t xh_data_size;
+	uint16_t pool_id;
+	struct tmem_oid oid;
+	uint32_t index;
+	void *extra;
+};
+
+static inline struct tmem_xhandle tmem_xhandle_fill(uint16_t client_id,
+					struct tmem_pool *pool,
+					struct tmem_oid *oidp,
+					uint32_t index)
+{
+	struct tmem_xhandle xh;
+	xh.client_id = client_id;
+	xh.xh_data_cksum = (uint8_t)-1;
+	xh.xh_data_size = (uint16_t)-1;
+	xh.pool_id = pool->pool_id;
+	xh.oid = *oidp;
+	xh.index = index;
+	return xh;
+}
+#endif
+
+
 /*
  * A tmem_obj contains an identifier (oid), pointers to the parent
  * pool and the rb_tree to which it belongs, counters, and an ordered
@@ -171,11 +171,15 @@ struct tmem_obj {
 	unsigned int objnode_tree_height;
 	unsigned long objnode_count;
 	long pampd_count;
-	/* for current design of ramster, all pages belonging to
+#ifdef CONFIG_RAMSTER
+	/*
+	 * for current design of ramster, all pages belonging to
 	 * an object reside on the same remotenode and extra is
 	 * used to record the number of the remotenode so a
-	 * flush-object operation can specify it */
-	void *extra; /* for use by pampd implementation */
+	 * flush-object operation can specify it
+	 */
+	void *extra; /* for private use by pampd implementation */
+#endif
 	DECL_SENTINEL
 };
 
@@ -193,10 +197,17 @@ struct tmem_objnode {
 	unsigned int slots_in_use;
 };
 
+struct tmem_handle {
+	struct tmem_oid oid; /* 24 bytes */
+	uint32_t index;
+	uint16_t pool_id;
+	uint16_t client_id;
+};
+
+
 /* pampd abstract datatype methods provided by the PAM implementation */
 struct tmem_pamops {
-	void *(*create)(char *, size_t, bool, int,
-			struct tmem_pool *, struct tmem_oid *, uint32_t);
+	void (*create_finish)(void *, bool);
 	int (*get_data)(char *, size_t *, bool, void *, struct tmem_pool *,
 				struct tmem_oid *, uint32_t);
 	int (*get_data_and_free)(char *, size_t *, bool, void *,
@@ -204,14 +215,16 @@ struct tmem_pamops {
 				uint32_t);
 	void (*free)(void *, struct tmem_pool *,
 				struct tmem_oid *, uint32_t, bool);
-	void (*free_obj)(struct tmem_pool *, struct tmem_obj *);
-	bool (*is_remote)(void *);
+#ifdef CONFIG_RAMSTER
+	void (*new_obj)(struct tmem_obj *);
+	void (*free_obj)(struct tmem_pool *, struct tmem_obj *, bool);
 	void *(*repatriate_preload)(void *, struct tmem_pool *,
 					struct tmem_oid *, uint32_t, bool *);
 	int (*repatriate)(void *, void *, struct tmem_pool *,
 				struct tmem_oid *, uint32_t, bool, void *);
-	void (*new_obj)(struct tmem_obj *);
+	bool (*is_remote)(void *);
 	int (*replace_in_obj)(void *, struct tmem_obj *);
+#endif
 };
 extern void tmem_register_pamops(struct tmem_pamops *m);
 
@@ -226,9 +239,15 @@ extern void tmem_register_hostops(struct tmem_hostops *m);
 
 /* core tmem accessor functions */
 extern int tmem_put(struct tmem_pool *, struct tmem_oid *, uint32_t index,
-			char *, size_t, bool, int);
+			bool, void *);
 extern int tmem_get(struct tmem_pool *, struct tmem_oid *, uint32_t index,
 			char *, size_t *, bool, int);
+extern int tmem_flush_page(struct tmem_pool *, struct tmem_oid *,
+			uint32_t index);
+extern int tmem_flush_object(struct tmem_pool *, struct tmem_oid *);
+extern int tmem_destroy_pool(struct tmem_pool *);
+extern void tmem_new_pool(struct tmem_pool *, uint32_t);
+#ifdef CONFIG_RAMSTER
 extern int tmem_replace(struct tmem_pool *, struct tmem_oid *, uint32_t index,
 			void *);
 extern void *tmem_localify_get_pampd(struct tmem_pool *, struct tmem_oid *,
@@ -236,9 +255,5 @@ extern void *tmem_localify_get_pampd(struct tmem_pool *, struct tmem_oid *,
 				   void **);
 extern void tmem_localify_finish(struct tmem_obj *, uint32_t index,
 				 void *, void *, bool);
-extern int tmem_flush_page(struct tmem_pool *, struct tmem_oid *,
-			uint32_t index);
-extern int tmem_flush_object(struct tmem_pool *, struct tmem_oid *);
-extern int tmem_destroy_pool(struct tmem_pool *);
-extern void tmem_new_pool(struct tmem_pool *, uint32_t);
+#endif
 #endif /* _TMEM_H */
diff --git a/drivers/staging/ramster/xvmalloc.c b/drivers/staging/ramster/xvmalloc.c
deleted file mode 100644
index 44ceb0b823a..00000000000
--- a/drivers/staging/ramster/xvmalloc.c
+++ /dev/null
@@ -1,509 +0,0 @@
-/*
- * xvmalloc memory allocator
- *
- * Copyright (C) 2008, 2009, 2010  Nitin Gupta
- *
- * This code is released using a dual license strategy: BSD/GPL
- * You can choose the licence that better fits your requirements.
- *
- * Released under the terms of 3-clause BSD License
- * Released under the terms of GNU General Public License Version 2.0
- */
-
-#ifdef CONFIG_ZRAM_DEBUG
-#define DEBUG
-#endif
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/bitops.h>
-#include <linux/errno.h>
-#include <linux/highmem.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-
-#include "xvmalloc.h"
-#include "xvmalloc_int.h"
-
-static void stat_inc(u64 *value)
-{
-	*value = *value + 1;
-}
-
-static void stat_dec(u64 *value)
-{
-	*value = *value - 1;
-}
-
-static int test_flag(struct block_header *block, enum blockflags flag)
-{
-	return block->prev & BIT(flag);
-}
-
-static void set_flag(struct block_header *block, enum blockflags flag)
-{
-	block->prev |= BIT(flag);
-}
-
-static void clear_flag(struct block_header *block, enum blockflags flag)
-{
-	block->prev &= ~BIT(flag);
-}
-
-/*
- * Given <page, offset> pair, provide a dereferencable pointer.
- * This is called from xv_malloc/xv_free path, so it
- * needs to be fast.
- */
-static void *get_ptr_atomic(struct page *page, u16 offset)
-{
-	unsigned char *base;
-
-	base = kmap_atomic(page);
-	return base + offset;
-}
-
-static void put_ptr_atomic(void *ptr)
-{
-	kunmap_atomic(ptr);
-}
-
-static u32 get_blockprev(struct block_header *block)
-{
-	return block->prev & PREV_MASK;
-}
-
-static void set_blockprev(struct block_header *block, u16 new_offset)
-{
-	block->prev = new_offset | (block->prev & FLAGS_MASK);
-}
-
-static struct block_header *BLOCK_NEXT(struct block_header *block)
-{
-	return (struct block_header *)
-		((char *)block + block->size + XV_ALIGN);
-}
-
-/*
- * Get index of free list containing blocks of maximum size
- * which is less than or equal to given size.
- */
-static u32 get_index_for_insert(u32 size)
-{
-	if (unlikely(size > XV_MAX_ALLOC_SIZE))
-		size = XV_MAX_ALLOC_SIZE;
-	size &= ~FL_DELTA_MASK;
-	return (size - XV_MIN_ALLOC_SIZE) >> FL_DELTA_SHIFT;
-}
-
-/*
- * Get index of free list having blocks of size greater than
- * or equal to requested size.
- */
-static u32 get_index(u32 size)
-{
-	if (unlikely(size < XV_MIN_ALLOC_SIZE))
-		size = XV_MIN_ALLOC_SIZE;
-	size = ALIGN(size, FL_DELTA);
-	return (size - XV_MIN_ALLOC_SIZE) >> FL_DELTA_SHIFT;
-}
-
-/**
- * find_block - find block of at least given size
- * @pool: memory pool to search from
- * @size: size of block required
- * @page: page containing required block
- * @offset: offset within the page where block is located.
- *
- * Searches two level bitmap to locate block of at least
- * the given size. If such a block is found, it provides
- * <page, offset> to identify this block and returns index
- * in freelist where we found this block.
- * Otherwise, returns 0 and <page, offset> params are not touched.
- */
-static u32 find_block(struct xv_pool *pool, u32 size,
-			struct page **page, u32 *offset)
-{
-	ulong flbitmap, slbitmap;
-	u32 flindex, slindex, slbitstart;
-
-	/* There are no free blocks in this pool */
-	if (!pool->flbitmap)
-		return 0;
-
-	/* Get freelist index corresponding to this size */
-	slindex = get_index(size);
-	slbitmap = pool->slbitmap[slindex / BITS_PER_LONG];
-	slbitstart = slindex % BITS_PER_LONG;
-
-	/*
-	 * If freelist is not empty at this index, we found the
-	 * block - head of this list. This is approximate best-fit match.
-	 */
-	if (test_bit(slbitstart, &slbitmap)) {
-		*page = pool->freelist[slindex].page;
-		*offset = pool->freelist[slindex].offset;
-		return slindex;
-	}
-
-	/*
-	 * No best-fit found. Search a bit further in bitmap for a free block.
-	 * Second level bitmap consists of series of 32-bit chunks. Search
-	 * further in the chunk where we expected a best-fit, starting from
-	 * index location found above.
-	 */
-	slbitstart++;
-	slbitmap >>= slbitstart;
-
-	/* Skip this search if we were already at end of this bitmap chunk */
-	if ((slbitstart != BITS_PER_LONG) && slbitmap) {
-		slindex += __ffs(slbitmap) + 1;
-		*page = pool->freelist[slindex].page;
-		*offset = pool->freelist[slindex].offset;
-		return slindex;
-	}
-
-	/* Now do a full two-level bitmap search to find next nearest fit */
-	flindex = slindex / BITS_PER_LONG;
-
-	flbitmap = (pool->flbitmap) >> (flindex + 1);
-	if (!flbitmap)
-		return 0;
-
-	flindex += __ffs(flbitmap) + 1;
-	slbitmap = pool->slbitmap[flindex];
-	slindex = (flindex * BITS_PER_LONG) + __ffs(slbitmap);
-	*page = pool->freelist[slindex].page;
-	*offset = pool->freelist[slindex].offset;
-
-	return slindex;
-}
-
-/*
- * Insert block at <page, offset> in freelist of given pool.
- * freelist used depends on block size.
- */
-static void insert_block(struct xv_pool *pool, struct page *page, u32 offset,
-			struct block_header *block)
-{
-	u32 flindex, slindex;
-	struct block_header *nextblock;
-
-	slindex = get_index_for_insert(block->size);
-	flindex = slindex / BITS_PER_LONG;
-
-	block->link.prev_page = NULL;
-	block->link.prev_offset = 0;
-	block->link.next_page = pool->freelist[slindex].page;
-	block->link.next_offset = pool->freelist[slindex].offset;
-	pool->freelist[slindex].page = page;
-	pool->freelist[slindex].offset = offset;
-
-	if (block->link.next_page) {
-		nextblock = get_ptr_atomic(block->link.next_page,
-					block->link.next_offset);
-		nextblock->link.prev_page = page;
-		nextblock->link.prev_offset = offset;
-		put_ptr_atomic(nextblock);
-		/* If there was a next page then the free bits are set. */
-		return;
-	}
-
-	__set_bit(slindex % BITS_PER_LONG, &pool->slbitmap[flindex]);
-	__set_bit(flindex, &pool->flbitmap);
-}
-
-/*
- * Remove block from freelist. Index 'slindex' identifies the freelist.
- */
-static void remove_block(struct xv_pool *pool, struct page *page, u32 offset,
-			struct block_header *block, u32 slindex)
-{
-	u32 flindex = slindex / BITS_PER_LONG;
-	struct block_header *tmpblock;
-
-	if (block->link.prev_page) {
-		tmpblock = get_ptr_atomic(block->link.prev_page,
-				block->link.prev_offset);
-		tmpblock->link.next_page = block->link.next_page;
-		tmpblock->link.next_offset = block->link.next_offset;
-		put_ptr_atomic(tmpblock);
-	}
-
-	if (block->link.next_page) {
-		tmpblock = get_ptr_atomic(block->link.next_page,
-				block->link.next_offset);
-		tmpblock->link.prev_page = block->link.prev_page;
-		tmpblock->link.prev_offset = block->link.prev_offset;
-		put_ptr_atomic(tmpblock);
-	}
-
-	/* Is this block is at the head of the freelist? */
-	if (pool->freelist[slindex].page == page
-	   && pool->freelist[slindex].offset == offset) {
-
-		pool->freelist[slindex].page = block->link.next_page;
-		pool->freelist[slindex].offset = block->link.next_offset;
-
-		if (pool->freelist[slindex].page) {
-			struct block_header *tmpblock;
-			tmpblock = get_ptr_atomic(pool->freelist[slindex].page,
-					pool->freelist[slindex].offset);
-			tmpblock->link.prev_page = NULL;
-			tmpblock->link.prev_offset = 0;
-			put_ptr_atomic(tmpblock);
-		} else {
-			/* This freelist bucket is empty */
-			__clear_bit(slindex % BITS_PER_LONG,
-				    &pool->slbitmap[flindex]);
-			if (!pool->slbitmap[flindex])
-				__clear_bit(flindex, &pool->flbitmap);
-		}
-	}
-
-	block->link.prev_page = NULL;
-	block->link.prev_offset = 0;
-	block->link.next_page = NULL;
-	block->link.next_offset = 0;
-}
-
-/*
- * Allocate a page and add it to freelist of given pool.
- */
-static int grow_pool(struct xv_pool *pool, gfp_t flags)
-{
-	struct page *page;
-	struct block_header *block;
-
-	page = alloc_page(flags);
-	if (unlikely(!page))
-		return -ENOMEM;
-
-	stat_inc(&pool->total_pages);
-
-	spin_lock(&pool->lock);
-	block = get_ptr_atomic(page, 0);
-
-	block->size = PAGE_SIZE - XV_ALIGN;
-	set_flag(block, BLOCK_FREE);
-	clear_flag(block, PREV_FREE);
-	set_blockprev(block, 0);
-
-	insert_block(pool, page, 0, block);
-
-	put_ptr_atomic(block);
-	spin_unlock(&pool->lock);
-
-	return 0;
-}
-
-/*
- * Create a memory pool. Allocates freelist, bitmaps and other
- * per-pool metadata.
- */
-struct xv_pool *xv_create_pool(void)
-{
-	u32 ovhd_size;
-	struct xv_pool *pool;
-
-	ovhd_size = roundup(sizeof(*pool), PAGE_SIZE);
-	pool = kzalloc(ovhd_size, GFP_KERNEL);
-	if (!pool)
-		return NULL;
-
-	spin_lock_init(&pool->lock);
-
-	return pool;
-}
-EXPORT_SYMBOL_GPL(xv_create_pool);
-
-void xv_destroy_pool(struct xv_pool *pool)
-{
-	kfree(pool);
-}
-EXPORT_SYMBOL_GPL(xv_destroy_pool);
-
-/**
- * xv_malloc - Allocate block of given size from pool.
- * @pool: pool to allocate from
- * @size: size of block to allocate
- * @page: page no. that holds the object
- * @offset: location of object within page
- *
- * On success, <page, offset> identifies block allocated
- * and 0 is returned. On failure, <page, offset> is set to
- * 0 and -ENOMEM is returned.
- *
- * Allocation requests with size > XV_MAX_ALLOC_SIZE will fail.
- */
-int xv_malloc(struct xv_pool *pool, u32 size, struct page **page,
-		u32 *offset, gfp_t flags)
-{
-	int error;
-	u32 index, tmpsize, origsize, tmpoffset;
-	struct block_header *block, *tmpblock;
-
-	*page = NULL;
-	*offset = 0;
-	origsize = size;
-
-	if (unlikely(!size || size > XV_MAX_ALLOC_SIZE))
-		return -ENOMEM;
-
-	size = ALIGN(size, XV_ALIGN);
-
-	spin_lock(&pool->lock);
-
-	index = find_block(pool, size, page, offset);
-
-	if (!*page) {
-		spin_unlock(&pool->lock);
-		if (flags & GFP_NOWAIT)
-			return -ENOMEM;
-		error = grow_pool(pool, flags);
-		if (unlikely(error))
-			return error;
-
-		spin_lock(&pool->lock);
-		index = find_block(pool, size, page, offset);
-	}
-
-	if (!*page) {
-		spin_unlock(&pool->lock);
-		return -ENOMEM;
-	}
-
-	block = get_ptr_atomic(*page, *offset);
-
-	remove_block(pool, *page, *offset, block, index);
-
-	/* Split the block if required */
-	tmpoffset = *offset + size + XV_ALIGN;
-	tmpsize = block->size - size;
-	tmpblock = (struct block_header *)((char *)block + size + XV_ALIGN);
-	if (tmpsize) {
-		tmpblock->size = tmpsize - XV_ALIGN;
-		set_flag(tmpblock, BLOCK_FREE);
-		clear_flag(tmpblock, PREV_FREE);
-
-		set_blockprev(tmpblock, *offset);
-		if (tmpblock->size >= XV_MIN_ALLOC_SIZE)
-			insert_block(pool, *page, tmpoffset, tmpblock);
-
-		if (tmpoffset + XV_ALIGN + tmpblock->size != PAGE_SIZE) {
-			tmpblock = BLOCK_NEXT(tmpblock);
-			set_blockprev(tmpblock, tmpoffset);
-		}
-	} else {
-		/* This block is exact fit */
-		if (tmpoffset != PAGE_SIZE)
-			clear_flag(tmpblock, PREV_FREE);
-	}
-
-	block->size = origsize;
-	clear_flag(block, BLOCK_FREE);
-
-	put_ptr_atomic(block);
-	spin_unlock(&pool->lock);
-
-	*offset += XV_ALIGN;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(xv_malloc);
-
-/*
- * Free block identified with <page, offset>
- */
-void xv_free(struct xv_pool *pool, struct page *page, u32 offset)
-{
-	void *page_start;
-	struct block_header *block, *tmpblock;
-
-	offset -= XV_ALIGN;
-
-	spin_lock(&pool->lock);
-
-	page_start = get_ptr_atomic(page, 0);
-	block = (struct block_header *)((char *)page_start + offset);
-
-	/* Catch double free bugs */
-	BUG_ON(test_flag(block, BLOCK_FREE));
-
-	block->size = ALIGN(block->size, XV_ALIGN);
-
-	tmpblock = BLOCK_NEXT(block);
-	if (offset + block->size + XV_ALIGN == PAGE_SIZE)
-		tmpblock = NULL;
-
-	/* Merge next block if its free */
-	if (tmpblock && test_flag(tmpblock, BLOCK_FREE)) {
-		/*
-		 * Blocks smaller than XV_MIN_ALLOC_SIZE
-		 * are not inserted in any free list.
-		 */
-		if (tmpblock->size >= XV_MIN_ALLOC_SIZE) {
-			remove_block(pool, page,
-				    offset + block->size + XV_ALIGN, tmpblock,
-				    get_index_for_insert(tmpblock->size));
-		}
-		block->size += tmpblock->size + XV_ALIGN;
-	}
-
-	/* Merge previous block if its free */
-	if (test_flag(block, PREV_FREE)) {
-		tmpblock = (struct block_header *)((char *)(page_start) +
-						get_blockprev(block));
-		offset = offset - tmpblock->size - XV_ALIGN;
-
-		if (tmpblock->size >= XV_MIN_ALLOC_SIZE)
-			remove_block(pool, page, offset, tmpblock,
-				    get_index_for_insert(tmpblock->size));
-
-		tmpblock->size += block->size + XV_ALIGN;
-		block = tmpblock;
-	}
-
-	/* No used objects in this page. Free it. */
-	if (block->size == PAGE_SIZE - XV_ALIGN) {
-		put_ptr_atomic(page_start);
-		spin_unlock(&pool->lock);
-
-		__free_page(page);
-		stat_dec(&pool->total_pages);
-		return;
-	}
-
-	set_flag(block, BLOCK_FREE);
-	if (block->size >= XV_MIN_ALLOC_SIZE)
-		insert_block(pool, page, offset, block);
-
-	if (offset + block->size + XV_ALIGN != PAGE_SIZE) {
-		tmpblock = BLOCK_NEXT(block);
-		set_flag(tmpblock, PREV_FREE);
-		set_blockprev(tmpblock, offset);
-	}
-
-	put_ptr_atomic(page_start);
-	spin_unlock(&pool->lock);
-}
-EXPORT_SYMBOL_GPL(xv_free);
-
-u32 xv_get_object_size(void *obj)
-{
-	struct block_header *blk;
-
-	blk = (struct block_header *)((char *)(obj) - XV_ALIGN);
-	return blk->size;
-}
-EXPORT_SYMBOL_GPL(xv_get_object_size);
-
-/*
- * Returns total memory used by allocator (userdata + metadata)
- */
-u64 xv_get_total_size_bytes(struct xv_pool *pool)
-{
-	return pool->total_pages << PAGE_SHIFT;
-}
-EXPORT_SYMBOL_GPL(xv_get_total_size_bytes);
diff --git a/drivers/staging/ramster/xvmalloc.h b/drivers/staging/ramster/xvmalloc.h
deleted file mode 100644
index 5b1a81aa5fa..00000000000
--- a/drivers/staging/ramster/xvmalloc.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * xvmalloc memory allocator
- *
- * Copyright (C) 2008, 2009, 2010  Nitin Gupta
- *
- * This code is released using a dual license strategy: BSD/GPL
- * You can choose the licence that better fits your requirements.
- *
- * Released under the terms of 3-clause BSD License
- * Released under the terms of GNU General Public License Version 2.0
- */
-
-#ifndef _XV_MALLOC_H_
-#define _XV_MALLOC_H_
-
-#include <linux/types.h>
-
-struct xv_pool;
-
-struct xv_pool *xv_create_pool(void);
-void xv_destroy_pool(struct xv_pool *pool);
-
-int xv_malloc(struct xv_pool *pool, u32 size, struct page **page,
-			u32 *offset, gfp_t flags);
-void xv_free(struct xv_pool *pool, struct page *page, u32 offset);
-
-u32 xv_get_object_size(void *obj);
-u64 xv_get_total_size_bytes(struct xv_pool *pool);
-
-#endif
diff --git a/drivers/staging/ramster/xvmalloc_int.h b/drivers/staging/ramster/xvmalloc_int.h
deleted file mode 100644
index b5f1f7febcf..00000000000
--- a/drivers/staging/ramster/xvmalloc_int.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * xvmalloc memory allocator
- *
- * Copyright (C) 2008, 2009, 2010  Nitin Gupta
- *
- * This code is released using a dual license strategy: BSD/GPL
- * You can choose the licence that better fits your requirements.
- *
- * Released under the terms of 3-clause BSD License
- * Released under the terms of GNU General Public License Version 2.0
- */
-
-#ifndef _XV_MALLOC_INT_H_
-#define _XV_MALLOC_INT_H_
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-/* User configurable params */
-
-/* Must be power of two */
-#ifdef CONFIG_64BIT
-#define XV_ALIGN_SHIFT 3
-#else
-#define XV_ALIGN_SHIFT	2
-#endif
-#define XV_ALIGN	(1 << XV_ALIGN_SHIFT)
-#define XV_ALIGN_MASK	(XV_ALIGN - 1)
-
-/* This must be greater than sizeof(link_free) */
-#define XV_MIN_ALLOC_SIZE	32
-#define XV_MAX_ALLOC_SIZE	(PAGE_SIZE - XV_ALIGN)
-
-/*
- * Free lists are separated by FL_DELTA bytes
- * This value is 3 for 4k pages and 4 for 64k pages, for any
- * other page size, a conservative (PAGE_SHIFT - 9) is used.
- */
-#if PAGE_SHIFT == 16
-#define FL_DELTA_SHIFT 4
-#else
-#define FL_DELTA_SHIFT (PAGE_SHIFT - 9)
-#endif
-#define FL_DELTA	(1 << FL_DELTA_SHIFT)
-#define FL_DELTA_MASK	(FL_DELTA - 1)
-#define NUM_FREE_LISTS	((XV_MAX_ALLOC_SIZE - XV_MIN_ALLOC_SIZE) \
-				/ FL_DELTA + 1)
-
-#define MAX_FLI		DIV_ROUND_UP(NUM_FREE_LISTS, BITS_PER_LONG)
-
-/* End of user params */
-
-enum blockflags {
-	BLOCK_FREE,
-	PREV_FREE,
-	__NR_BLOCKFLAGS,
-};
-
-#define FLAGS_MASK	XV_ALIGN_MASK
-#define PREV_MASK	(~FLAGS_MASK)
-
-struct freelist_entry {
-	struct page *page;
-	u16 offset;
-	u16 pad;
-};
-
-struct link_free {
-	struct page *prev_page;
-	struct page *next_page;
-	u16 prev_offset;
-	u16 next_offset;
-};
-
-struct block_header {
-	union {
-		/* This common header must be XV_ALIGN bytes */
-		u8 common[XV_ALIGN];
-		struct {
-			u16 size;
-			u16 prev;
-		};
-	};
-	struct link_free link;
-};
-
-struct xv_pool {
-	ulong flbitmap;
-	ulong slbitmap[MAX_FLI];
-	u64 total_pages;	/* stats */
-	struct freelist_entry freelist[NUM_FREE_LISTS];
-	spinlock_t lock;
-};
-
-#endif
diff --git a/drivers/staging/ramster/zbud.c b/drivers/staging/ramster/zbud.c
new file mode 100644
index 00000000000..a7c436127aa
--- /dev/null
+++ b/drivers/staging/ramster/zbud.c
@@ -0,0 +1,1060 @@
+/*
+ * zbud.c - Compression buddies allocator
+ *
+ * Copyright (c) 2010-2012, Dan Magenheimer, Oracle Corp.
+ *
+ * Compression buddies ("zbud") provides for efficiently packing two
+ * (or, possibly in the future, more) compressed pages ("zpages") into
+ * a single "raw" pageframe and for tracking both zpages and pageframes
+ * so that whole pageframes can be easily reclaimed in LRU-like order.
+ * It is designed to be used in conjunction with transcendent memory
+ * ("tmem"); for example separate LRU lists are maintained for persistent
+ * vs. ephemeral pages.
+ *
+ * A zbudpage is an overlay for a struct page and thus each zbudpage
+ * refers to a physical pageframe of RAM.  When the caller passes a
+ * struct page from the kernel's page allocator, zbud "transforms" it
+ * to a zbudpage which sets/uses a different set of fields than the
+ * struct-page and thus must "untransform" it back by reinitializing
+ * certain fields before the struct-page can be freed.  The fields
+ * of a zbudpage include a page lock for controlling access to the
+ * corresponding pageframe, and there is a size field for each zpage.
+ * Each zbudpage also lives on two linked lists: a "budlist" which is
+ * used to support efficient buddying of zpages; and an "lru" which
+ * is used for reclaiming pageframes in approximately least-recently-used
+ * order.
+ *
+ * A zbudpageframe is a pageframe divided up into aligned 64-byte "chunks"
+ * which contain the compressed data for zero, one, or two zbuds.  Contained
+ * with the compressed data is a tmem_handle which is a key to allow
+ * the same data to be found via the tmem interface so the zpage can
+ * be invalidated (for ephemeral pages) or repatriated to the swap cache
+ * (for persistent pages).  The contents of a zbudpageframe must never
+ * be accessed without holding the page lock for the corresponding
+ * zbudpage and, to accomodate highmem machines, the contents may
+ * only be examined or changes when kmapped.  Thus, when in use, a
+ * kmapped zbudpageframe is referred to in the zbud code as "void *zbpg".
+ *
+ * Note that the term "zbud" refers to the combination of a zpage and
+ * a tmem_handle that is stored as one of possibly two "buddied" zpages;
+ * it also generically refers to this allocator... sorry for any confusion.
+ *
+ * A zbudref is a pointer to a struct zbudpage (which can be cast to a
+ * struct page), with the LSB either cleared or set to indicate, respectively,
+ * the first or second zpage in the zbudpageframe. Since a zbudref can be
+ * cast to a pointer, it is used as the tmem "pampd" pointer and uniquely
+ * references a stored tmem page and so is the only zbud data structure
+ * externally visible to zbud.c/zbud.h.
+ *
+ * Since we wish to reclaim entire pageframes but zpages may be randomly
+ * added and deleted to any given pageframe, we approximate LRU by
+ * promoting a pageframe to MRU when a zpage is added to it, but
+ * leaving it at the current place in the list when a zpage is deleted
+ * from it.  As a side effect, zpages that are difficult to buddy (e.g.
+ * very large paages) will be reclaimed faster than average, which seems
+ * reasonable.
+ *
+ * In the current implementation, no more than two zpages may be stored in
+ * any pageframe and no zpage ever crosses a pageframe boundary.  While
+ * other zpage allocation mechanisms may allow greater density, this two
+ * zpage-per-pageframe limit both ensures simple reclaim of pageframes
+ * (including garbage collection of references to the contents of those
+ * pageframes from tmem data structures) AND avoids the need for compaction.
+ * With additional complexity, zbud could be modified to support storing
+ * up to three zpages per pageframe or, to handle larger average zpages,
+ * up to three zpages per pair of pageframes, but it is not clear if the
+ * additional complexity would be worth it.  So consider it an exercise
+ * for future developers.
+ *
+ * Note also that zbud does no page allocation or freeing.  This is so
+ * that the caller has complete control over and, for accounting, visibility
+ * into if/when pages are allocated and freed.
+ *
+ * Finally, note that zbud limits the size of zpages it can store; the
+ * caller must check the zpage size with zbud_max_buddy_size before
+ * storing it, else BUGs will result.  User beware.
+ */
+
+#include <linux/module.h>
+#include <linux/highmem.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/pagemap.h>
+#include <linux/atomic.h>
+#include <linux/bug.h>
+#include "tmem.h"
+#include "zcache.h"
+#include "zbud.h"
+
+/*
+ * We need to ensure that a struct zbudpage is never larger than a
+ * struct page.  This is checked with a BUG_ON in zbud_init.
+ *
+ * The unevictable field indicates that a zbud is being added to the
+ * zbudpage.  Since this is a two-phase process (due to tmem locking),
+ * this field locks the zbudpage against eviction when a zbud match
+ * or creation is in process.  Since this addition process may occur
+ * in parallel for two zbuds in one zbudpage, the field is a counter
+ * that must not exceed two.
+ */
+struct zbudpage {
+	union {
+		struct page page;
+		struct {
+			unsigned long space_for_flags;
+			struct {
+				unsigned zbud0_size:12;
+				unsigned zbud1_size:12;
+				unsigned unevictable:2;
+			};
+			struct list_head budlist;
+			struct list_head lru;
+		};
+	};
+};
+
+struct zbudref {
+	union {
+		struct zbudpage *zbudpage;
+		unsigned long zbudref;
+	};
+};
+
+#define CHUNK_SHIFT	6
+#define CHUNK_SIZE	(1 << CHUNK_SHIFT)
+#define CHUNK_MASK	(~(CHUNK_SIZE-1))
+#define NCHUNKS		(PAGE_SIZE >> CHUNK_SHIFT)
+#define MAX_CHUNK	(NCHUNKS-1)
+
+/*
+ * The following functions deal with the difference between struct
+ * page and struct zbudpage.  Note the hack of using the pageflags
+ * from struct page; this is to avoid duplicating all the complex
+ * pageflag macros.
+ */
+static inline void zbudpage_spin_lock(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	while (unlikely(test_and_set_bit_lock(PG_locked, &page->flags))) {
+		do {
+			cpu_relax();
+		} while (test_bit(PG_locked, &page->flags));
+	}
+}
+
+static inline void zbudpage_spin_unlock(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	clear_bit(PG_locked, &page->flags);
+}
+
+static inline int zbudpage_spin_trylock(struct zbudpage *zbudpage)
+{
+	return trylock_page((struct page *)zbudpage);
+}
+
+static inline int zbudpage_is_locked(struct zbudpage *zbudpage)
+{
+	return PageLocked((struct page *)zbudpage);
+}
+
+static inline void *kmap_zbudpage_atomic(struct zbudpage *zbudpage)
+{
+	return kmap_atomic((struct page *)zbudpage);
+}
+
+/*
+ * A dying zbudpage is an ephemeral page in the process of being evicted.
+ * Any data contained in the zbudpage is invalid and we are just waiting for
+ * the tmem pampds to be invalidated before freeing the page
+ */
+static inline int zbudpage_is_dying(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	return test_bit(PG_reclaim, &page->flags);
+}
+
+static inline void zbudpage_set_dying(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	set_bit(PG_reclaim, &page->flags);
+}
+
+static inline void zbudpage_clear_dying(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	clear_bit(PG_reclaim, &page->flags);
+}
+
+/*
+ * A zombie zbudpage is a persistent page in the process of being evicted.
+ * The data contained in the zbudpage is valid and we are just waiting for
+ * the tmem pampds to be invalidated before freeing the page
+ */
+static inline int zbudpage_is_zombie(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	return test_bit(PG_dirty, &page->flags);
+}
+
+static inline void zbudpage_set_zombie(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	set_bit(PG_dirty, &page->flags);
+}
+
+static inline void zbudpage_clear_zombie(struct zbudpage *zbudpage)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	clear_bit(PG_dirty, &page->flags);
+}
+
+static inline void kunmap_zbudpage_atomic(void *zbpg)
+{
+	kunmap_atomic(zbpg);
+}
+
+/*
+ * zbud "translation" and helper functions
+ */
+
+static inline struct zbudpage *zbudref_to_zbudpage(struct zbudref *zref)
+{
+	unsigned long zbud = (unsigned long)zref;
+	zbud &= ~1UL;
+	return (struct zbudpage *)zbud;
+}
+
+static inline struct zbudref *zbudpage_to_zbudref(struct zbudpage *zbudpage,
+							unsigned budnum)
+{
+	unsigned long zbud = (unsigned long)zbudpage;
+	BUG_ON(budnum > 1);
+	zbud |= budnum;
+	return (struct zbudref *)zbud;
+}
+
+static inline int zbudref_budnum(struct zbudref *zbudref)
+{
+	unsigned long zbud = (unsigned long)zbudref;
+	return zbud & 1UL;
+}
+
+static inline unsigned zbud_max_size(void)
+{
+	return MAX_CHUNK << CHUNK_SHIFT;
+}
+
+static inline unsigned zbud_size_to_chunks(unsigned size)
+{
+	BUG_ON(size == 0 || size > zbud_max_size());
+	return (size + CHUNK_SIZE - 1) >> CHUNK_SHIFT;
+}
+
+/* can only be used between kmap_zbudpage_atomic/kunmap_zbudpage_atomic! */
+static inline char *zbud_data(void *zbpg,
+			unsigned budnum, unsigned size)
+{
+	char *p;
+
+	BUG_ON(size == 0 || size > zbud_max_size());
+	p = (char *)zbpg;
+	if (budnum == 1)
+		p += PAGE_SIZE - ((size + CHUNK_SIZE - 1) & CHUNK_MASK);
+	return p;
+}
+
+/*
+ * These are all informative and exposed through debugfs... except for
+ * the arrays... anyone know how to do that?  To avoid confusion for
+ * debugfs viewers, some of these should also be atomic_long_t, but
+ * I don't know how to expose atomics via debugfs either...
+ */
+static unsigned long zbud_eph_pageframes;
+static unsigned long zbud_pers_pageframes;
+static unsigned long zbud_eph_zpages;
+static unsigned long zbud_pers_zpages;
+static u64 zbud_eph_zbytes;
+static u64 zbud_pers_zbytes;
+static unsigned long zbud_eph_evicted_pageframes;
+static unsigned long zbud_pers_evicted_pageframes;
+static unsigned long zbud_eph_cumul_zpages;
+static unsigned long zbud_pers_cumul_zpages;
+static u64 zbud_eph_cumul_zbytes;
+static u64 zbud_pers_cumul_zbytes;
+static unsigned long zbud_eph_cumul_chunk_counts[NCHUNKS];
+static unsigned long zbud_pers_cumul_chunk_counts[NCHUNKS];
+static unsigned long zbud_eph_buddied_count;
+static unsigned long zbud_pers_buddied_count;
+static unsigned long zbud_eph_unbuddied_count;
+static unsigned long zbud_pers_unbuddied_count;
+static unsigned long zbud_eph_zombie_count;
+static unsigned long zbud_pers_zombie_count;
+static atomic_t zbud_eph_zombie_atomic;
+static atomic_t zbud_pers_zombie_atomic;
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#define	zdfs	debugfs_create_size_t
+#define	zdfs64	debugfs_create_u64
+static int zbud_debugfs_init(void)
+{
+	struct dentry *root = debugfs_create_dir("zbud", NULL);
+	if (root == NULL)
+		return -ENXIO;
+
+	/*
+	 * would be nice to dump the sizes of the unbuddied
+	 * arrays, like was done with sysfs, but it doesn't
+	 * look like debugfs is flexible enough to do that
+	 */
+	zdfs64("eph_zbytes", S_IRUGO, root, &zbud_eph_zbytes);
+	zdfs64("eph_cumul_zbytes", S_IRUGO, root, &zbud_eph_cumul_zbytes);
+	zdfs64("pers_zbytes", S_IRUGO, root, &zbud_pers_zbytes);
+	zdfs64("pers_cumul_zbytes", S_IRUGO, root, &zbud_pers_cumul_zbytes);
+	zdfs("eph_cumul_zpages", S_IRUGO, root, &zbud_eph_cumul_zpages);
+	zdfs("eph_evicted_pageframes", S_IRUGO, root,
+				&zbud_eph_evicted_pageframes);
+	zdfs("eph_zpages", S_IRUGO, root, &zbud_eph_zpages);
+	zdfs("eph_pageframes", S_IRUGO, root, &zbud_eph_pageframes);
+	zdfs("eph_buddied_count", S_IRUGO, root, &zbud_eph_buddied_count);
+	zdfs("eph_unbuddied_count", S_IRUGO, root, &zbud_eph_unbuddied_count);
+	zdfs("pers_cumul_zpages", S_IRUGO, root, &zbud_pers_cumul_zpages);
+	zdfs("pers_evicted_pageframes", S_IRUGO, root,
+				&zbud_pers_evicted_pageframes);
+	zdfs("pers_zpages", S_IRUGO, root, &zbud_pers_zpages);
+	zdfs("pers_pageframes", S_IRUGO, root, &zbud_pers_pageframes);
+	zdfs("pers_buddied_count", S_IRUGO, root, &zbud_pers_buddied_count);
+	zdfs("pers_unbuddied_count", S_IRUGO, root, &zbud_pers_unbuddied_count);
+	zdfs("pers_zombie_count", S_IRUGO, root, &zbud_pers_zombie_count);
+	return 0;
+}
+#undef	zdfs
+#undef	zdfs64
+#endif
+
+/* protects the buddied list and all unbuddied lists */
+static DEFINE_SPINLOCK(zbud_eph_lists_lock);
+static DEFINE_SPINLOCK(zbud_pers_lists_lock);
+
+struct zbud_unbuddied {
+	struct list_head list;
+	unsigned count;
+};
+
+/* list N contains pages with N chunks USED and NCHUNKS-N unused */
+/* element 0 is never used but optimizing that isn't worth it */
+static struct zbud_unbuddied zbud_eph_unbuddied[NCHUNKS];
+static struct zbud_unbuddied zbud_pers_unbuddied[NCHUNKS];
+static LIST_HEAD(zbud_eph_lru_list);
+static LIST_HEAD(zbud_pers_lru_list);
+static LIST_HEAD(zbud_eph_buddied_list);
+static LIST_HEAD(zbud_pers_buddied_list);
+static LIST_HEAD(zbud_eph_zombie_list);
+static LIST_HEAD(zbud_pers_zombie_list);
+
+/*
+ * Given a struct page, transform it to a zbudpage so that it can be
+ * used by zbud and initialize fields as necessary.
+ */
+static inline struct zbudpage *zbud_init_zbudpage(struct page *page, bool eph)
+{
+	struct zbudpage *zbudpage = (struct zbudpage *)page;
+
+	BUG_ON(page == NULL);
+	INIT_LIST_HEAD(&zbudpage->budlist);
+	INIT_LIST_HEAD(&zbudpage->lru);
+	zbudpage->zbud0_size = 0;
+	zbudpage->zbud1_size = 0;
+	zbudpage->unevictable = 0;
+	if (eph)
+		zbud_eph_pageframes++;
+	else
+		zbud_pers_pageframes++;
+	return zbudpage;
+}
+
+/* "Transform" a zbudpage back to a struct page suitable to free. */
+static inline struct page *zbud_unuse_zbudpage(struct zbudpage *zbudpage,
+								bool eph)
+{
+	struct page *page = (struct page *)zbudpage;
+
+	BUG_ON(!list_empty(&zbudpage->budlist));
+	BUG_ON(!list_empty(&zbudpage->lru));
+	BUG_ON(zbudpage->zbud0_size != 0);
+	BUG_ON(zbudpage->zbud1_size != 0);
+	BUG_ON(!PageLocked(page));
+	BUG_ON(zbudpage->unevictable != 0);
+	BUG_ON(zbudpage_is_dying(zbudpage));
+	BUG_ON(zbudpage_is_zombie(zbudpage));
+	if (eph)
+		zbud_eph_pageframes--;
+	else
+		zbud_pers_pageframes--;
+	zbudpage_spin_unlock(zbudpage);
+	reset_page_mapcount(page);
+	init_page_count(page);
+	page->index = 0;
+	return page;
+}
+
+/* Mark a zbud as unused and do accounting */
+static inline void zbud_unuse_zbud(struct zbudpage *zbudpage,
+					int budnum, bool eph)
+{
+	unsigned size;
+
+	BUG_ON(!zbudpage_is_locked(zbudpage));
+	if (budnum == 0) {
+		size = zbudpage->zbud0_size;
+		zbudpage->zbud0_size = 0;
+	} else {
+		size = zbudpage->zbud1_size;
+		zbudpage->zbud1_size = 0;
+	}
+	if (eph) {
+		zbud_eph_zbytes -= size;
+		zbud_eph_zpages--;
+	} else {
+		zbud_pers_zbytes -= size;
+		zbud_pers_zpages--;
+	}
+}
+
+/*
+ * Given a zbudpage/budnum/size, a tmem handle, and a kmapped pointer
+ * to some data, set up the zbud appropriately including data copying
+ * and accounting.  Note that if cdata is NULL, the data copying is
+ * skipped.  (This is useful for lazy writes such as for RAMster.)
+ */
+static void zbud_init_zbud(struct zbudpage *zbudpage, struct tmem_handle *th,
+				bool eph, void *cdata,
+				unsigned budnum, unsigned size)
+{
+	char *to;
+	void *zbpg;
+	struct tmem_handle *to_th;
+	unsigned nchunks = zbud_size_to_chunks(size);
+
+	BUG_ON(!zbudpage_is_locked(zbudpage));
+	zbpg = kmap_zbudpage_atomic(zbudpage);
+	to = zbud_data(zbpg, budnum, size);
+	to_th = (struct tmem_handle *)to;
+	to_th->index = th->index;
+	to_th->oid = th->oid;
+	to_th->pool_id = th->pool_id;
+	to_th->client_id = th->client_id;
+	to += sizeof(struct tmem_handle);
+	if (cdata != NULL)
+		memcpy(to, cdata, size - sizeof(struct tmem_handle));
+	kunmap_zbudpage_atomic(zbpg);
+	if (budnum == 0)
+		zbudpage->zbud0_size = size;
+	else
+		zbudpage->zbud1_size = size;
+	if (eph) {
+		zbud_eph_cumul_chunk_counts[nchunks]++;
+		zbud_eph_zpages++;
+		zbud_eph_cumul_zpages++;
+		zbud_eph_zbytes += size;
+		zbud_eph_cumul_zbytes += size;
+	} else {
+		zbud_pers_cumul_chunk_counts[nchunks]++;
+		zbud_pers_zpages++;
+		zbud_pers_cumul_zpages++;
+		zbud_pers_zbytes += size;
+		zbud_pers_cumul_zbytes += size;
+	}
+}
+
+/*
+ * Given a locked dying zbudpage, read out the tmem handles from the data,
+ * unlock the page, then use the handles to tell tmem to flush out its
+ * references
+ */
+static void zbud_evict_tmem(struct zbudpage *zbudpage)
+{
+	int i, j;
+	uint32_t pool_id[2], client_id[2];
+	uint32_t index[2];
+	struct tmem_oid oid[2];
+	struct tmem_pool *pool;
+	void *zbpg;
+	struct tmem_handle *th;
+	unsigned size;
+
+	/* read out the tmem handles from the data and set aside */
+	zbpg = kmap_zbudpage_atomic(zbudpage);
+	for (i = 0, j = 0; i < 2; i++) {
+		size = (i == 0) ? zbudpage->zbud0_size : zbudpage->zbud1_size;
+		if (size) {
+			th = (struct tmem_handle *)zbud_data(zbpg, i, size);
+			client_id[j] = th->client_id;
+			pool_id[j] = th->pool_id;
+			oid[j] = th->oid;
+			index[j] = th->index;
+			j++;
+			zbud_unuse_zbud(zbudpage, i, true);
+		}
+	}
+	kunmap_zbudpage_atomic(zbpg);
+	zbudpage_spin_unlock(zbudpage);
+	/* zbudpage is now an unlocked dying... tell tmem to flush pointers */
+	for (i = 0; i < j; i++) {
+		pool = zcache_get_pool_by_id(client_id[i], pool_id[i]);
+		if (pool != NULL) {
+			tmem_flush_page(pool, &oid[i], index[i]);
+			zcache_put_pool(pool);
+		}
+	}
+}
+
+/*
+ * Externally callable zbud handling routines.
+ */
+
+/*
+ * Return the maximum size compressed page that can be stored (secretly
+ * setting aside space for the tmem handle.
+ */
+unsigned int zbud_max_buddy_size(void)
+{
+	return zbud_max_size() - sizeof(struct tmem_handle);
+}
+
+/*
+ * Given a zbud reference, free the corresponding zbud from all lists,
+ * mark it as unused, do accounting, and if the freeing of the zbud
+ * frees up an entire pageframe, return it to the caller (else NULL).
+ */
+struct page *zbud_free_and_delist(struct zbudref *zref, bool eph,
+				  unsigned int *zsize, unsigned int *zpages)
+{
+	unsigned long budnum = zbudref_budnum(zref);
+	struct zbudpage *zbudpage = zbudref_to_zbudpage(zref);
+	struct page *page = NULL;
+	unsigned chunks, bud_size, other_bud_size;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+	struct zbud_unbuddied *unbud =
+		eph ? zbud_eph_unbuddied : zbud_pers_unbuddied;
+
+
+	spin_lock(lists_lock);
+	zbudpage_spin_lock(zbudpage);
+	if (zbudpage_is_dying(zbudpage)) {
+		/* ignore dying zbudpage... see zbud_evict_pageframe_lru() */
+		zbudpage_spin_unlock(zbudpage);
+		spin_unlock(lists_lock);
+		*zpages = 0;
+		*zsize = 0;
+		goto out;
+	}
+	if (budnum == 0) {
+		bud_size = zbudpage->zbud0_size;
+		other_bud_size = zbudpage->zbud1_size;
+	} else {
+		bud_size = zbudpage->zbud1_size;
+		other_bud_size = zbudpage->zbud0_size;
+	}
+	*zsize = bud_size - sizeof(struct tmem_handle);
+	*zpages = 1;
+	zbud_unuse_zbud(zbudpage, budnum, eph);
+	if (other_bud_size == 0) { /* was unbuddied: unlist and free */
+		chunks = zbud_size_to_chunks(bud_size) ;
+		if (zbudpage_is_zombie(zbudpage)) {
+			if (eph)
+				zbud_pers_zombie_count =
+				  atomic_dec_return(&zbud_eph_zombie_atomic);
+			else
+				zbud_pers_zombie_count =
+				  atomic_dec_return(&zbud_pers_zombie_atomic);
+			zbudpage_clear_zombie(zbudpage);
+		} else {
+			BUG_ON(list_empty(&unbud[chunks].list));
+			list_del_init(&zbudpage->budlist);
+			unbud[chunks].count--;
+		}
+		list_del_init(&zbudpage->lru);
+		spin_unlock(lists_lock);
+		if (eph)
+			zbud_eph_unbuddied_count--;
+		else
+			zbud_pers_unbuddied_count--;
+		page = zbud_unuse_zbudpage(zbudpage, eph);
+	} else { /* was buddied: move remaining buddy to unbuddied list */
+		chunks = zbud_size_to_chunks(other_bud_size) ;
+		if (!zbudpage_is_zombie(zbudpage)) {
+			list_del_init(&zbudpage->budlist);
+			list_add_tail(&zbudpage->budlist, &unbud[chunks].list);
+			unbud[chunks].count++;
+		}
+		if (eph) {
+			zbud_eph_buddied_count--;
+			zbud_eph_unbuddied_count++;
+		} else {
+			zbud_pers_unbuddied_count++;
+			zbud_pers_buddied_count--;
+		}
+		/* don't mess with lru, no need to move it */
+		zbudpage_spin_unlock(zbudpage);
+		spin_unlock(lists_lock);
+	}
+out:
+	return page;
+}
+
+/*
+ * Given a tmem handle, and a kmapped pointer to compressed data of
+ * the given size, try to find an unbuddied zbudpage in which to
+ * create a zbud. If found, put it there, mark the zbudpage unevictable,
+ * and return a zbudref to it.  Else return NULL.
+ */
+struct zbudref *zbud_match_prep(struct tmem_handle *th, bool eph,
+				void *cdata, unsigned size)
+{
+	struct zbudpage *zbudpage = NULL, *zbudpage2;
+	unsigned long budnum = 0UL;
+	unsigned nchunks;
+	int i, found_good_buddy = 0;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+	struct zbud_unbuddied *unbud =
+		eph ? zbud_eph_unbuddied : zbud_pers_unbuddied;
+
+	size += sizeof(struct tmem_handle);
+	nchunks = zbud_size_to_chunks(size);
+	for (i = MAX_CHUNK - nchunks + 1; i > 0; i--) {
+		spin_lock(lists_lock);
+		if (!list_empty(&unbud[i].list)) {
+			list_for_each_entry_safe(zbudpage, zbudpage2,
+				    &unbud[i].list, budlist) {
+				if (zbudpage_spin_trylock(zbudpage)) {
+					found_good_buddy = i;
+					goto found_unbuddied;
+				}
+			}
+		}
+		spin_unlock(lists_lock);
+	}
+	zbudpage = NULL;
+	goto out;
+
+found_unbuddied:
+	BUG_ON(!zbudpage_is_locked(zbudpage));
+	BUG_ON(!((zbudpage->zbud0_size == 0) ^ (zbudpage->zbud1_size == 0)));
+	if (zbudpage->zbud0_size == 0)
+		budnum = 0UL;
+	else if (zbudpage->zbud1_size == 0)
+		budnum = 1UL;
+	list_del_init(&zbudpage->budlist);
+	if (eph) {
+		list_add_tail(&zbudpage->budlist, &zbud_eph_buddied_list);
+		unbud[found_good_buddy].count--;
+		zbud_eph_unbuddied_count--;
+		zbud_eph_buddied_count++;
+		/* "promote" raw zbudpage to most-recently-used */
+		list_del_init(&zbudpage->lru);
+		list_add_tail(&zbudpage->lru, &zbud_eph_lru_list);
+	} else {
+		list_add_tail(&zbudpage->budlist, &zbud_pers_buddied_list);
+		unbud[found_good_buddy].count--;
+		zbud_pers_unbuddied_count--;
+		zbud_pers_buddied_count++;
+		/* "promote" raw zbudpage to most-recently-used */
+		list_del_init(&zbudpage->lru);
+		list_add_tail(&zbudpage->lru, &zbud_pers_lru_list);
+	}
+	zbud_init_zbud(zbudpage, th, eph, cdata, budnum, size);
+	zbudpage->unevictable++;
+	BUG_ON(zbudpage->unevictable == 3);
+	zbudpage_spin_unlock(zbudpage);
+	spin_unlock(lists_lock);
+out:
+	return zbudpage_to_zbudref(zbudpage, budnum);
+
+}
+
+/*
+ * Given a tmem handle, and a kmapped pointer to compressed data of
+ * the given size, and a newly allocated struct page, create an unevictable
+ * zbud in that new page and return a zbudref to it.
+ */
+struct zbudref *zbud_create_prep(struct tmem_handle *th, bool eph,
+					void *cdata, unsigned size,
+					struct page *newpage)
+{
+	struct zbudpage *zbudpage;
+	unsigned long budnum = 0;
+	unsigned nchunks;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+	struct zbud_unbuddied *unbud =
+		eph ? zbud_eph_unbuddied : zbud_pers_unbuddied;
+
+#if 0
+	/* this may be worth it later to support decompress-in-place? */
+	static unsigned long counter;
+	budnum = counter++ & 1;	/* alternate using zbud0 and zbud1 */
+#endif
+
+	if (size  > zbud_max_buddy_size())
+		return NULL;
+	if (newpage == NULL)
+		return NULL;
+
+	size += sizeof(struct tmem_handle);
+	nchunks = zbud_size_to_chunks(size) ;
+	spin_lock(lists_lock);
+	zbudpage = zbud_init_zbudpage(newpage, eph);
+	zbudpage_spin_lock(zbudpage);
+	list_add_tail(&zbudpage->budlist, &unbud[nchunks].list);
+	if (eph) {
+		list_add_tail(&zbudpage->lru, &zbud_eph_lru_list);
+		zbud_eph_unbuddied_count++;
+	} else {
+		list_add_tail(&zbudpage->lru, &zbud_pers_lru_list);
+		zbud_pers_unbuddied_count++;
+	}
+	unbud[nchunks].count++;
+	zbud_init_zbud(zbudpage, th, eph, cdata, budnum, size);
+	zbudpage->unevictable++;
+	BUG_ON(zbudpage->unevictable == 3);
+	zbudpage_spin_unlock(zbudpage);
+	spin_unlock(lists_lock);
+	return zbudpage_to_zbudref(zbudpage, budnum);
+}
+
+/*
+ * Finish creation of a zbud by, assuming another zbud isn't being created
+ * in parallel, marking it evictable.
+ */
+void zbud_create_finish(struct zbudref *zref, bool eph)
+{
+	struct zbudpage *zbudpage = zbudref_to_zbudpage(zref);
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+
+	spin_lock(lists_lock);
+	zbudpage_spin_lock(zbudpage);
+	BUG_ON(zbudpage_is_dying(zbudpage));
+	zbudpage->unevictable--;
+	BUG_ON((int)zbudpage->unevictable < 0);
+	zbudpage_spin_unlock(zbudpage);
+	spin_unlock(lists_lock);
+}
+
+/*
+ * Given a zbudref and a struct page, decompress the data from
+ * the zbud into the physical page represented by the struct page
+ * by upcalling to zcache_decompress
+ */
+int zbud_decompress(struct page *data_page, struct zbudref *zref, bool eph,
+			void (*decompress)(char *, unsigned int, char *))
+{
+	struct zbudpage *zbudpage = zbudref_to_zbudpage(zref);
+	unsigned long budnum = zbudref_budnum(zref);
+	void *zbpg;
+	char *to_va, *from_va;
+	unsigned size;
+	int ret = -1;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+
+	spin_lock(lists_lock);
+	zbudpage_spin_lock(zbudpage);
+	if (zbudpage_is_dying(zbudpage)) {
+		/* ignore dying zbudpage... see zbud_evict_pageframe_lru() */
+		goto out;
+	}
+	zbpg = kmap_zbudpage_atomic(zbudpage);
+	to_va = kmap_atomic(data_page);
+	if (budnum == 0)
+		size = zbudpage->zbud0_size;
+	else
+		size = zbudpage->zbud1_size;
+	BUG_ON(size == 0 || size > zbud_max_size());
+	from_va = zbud_data(zbpg, budnum, size);
+	from_va += sizeof(struct tmem_handle);
+	size -= sizeof(struct tmem_handle);
+	decompress(from_va, size, to_va);
+	kunmap_atomic(to_va);
+	kunmap_zbudpage_atomic(zbpg);
+	ret = 0;
+out:
+	zbudpage_spin_unlock(zbudpage);
+	spin_unlock(lists_lock);
+	return ret;
+}
+
+/*
+ * Given a zbudref and a kernel pointer, copy the data from
+ * the zbud to the kernel pointer.
+ */
+int zbud_copy_from_zbud(char *to_va, struct zbudref *zref,
+				size_t *sizep, bool eph)
+{
+	struct zbudpage *zbudpage = zbudref_to_zbudpage(zref);
+	unsigned long budnum = zbudref_budnum(zref);
+	void *zbpg;
+	char *from_va;
+	unsigned size;
+	int ret = -1;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+
+	spin_lock(lists_lock);
+	zbudpage_spin_lock(zbudpage);
+	if (zbudpage_is_dying(zbudpage)) {
+		/* ignore dying zbudpage... see zbud_evict_pageframe_lru() */
+		goto out;
+	}
+	zbpg = kmap_zbudpage_atomic(zbudpage);
+	if (budnum == 0)
+		size = zbudpage->zbud0_size;
+	else
+		size = zbudpage->zbud1_size;
+	BUG_ON(size == 0 || size > zbud_max_size());
+	from_va = zbud_data(zbpg, budnum, size);
+	from_va += sizeof(struct tmem_handle);
+	size -= sizeof(struct tmem_handle);
+	*sizep = size;
+	memcpy(to_va, from_va, size);
+
+	kunmap_zbudpage_atomic(zbpg);
+	ret = 0;
+out:
+	zbudpage_spin_unlock(zbudpage);
+	spin_unlock(lists_lock);
+	return ret;
+}
+
+/*
+ * Given a zbudref and a kernel pointer, copy the data from
+ * the kernel pointer to the zbud.
+ */
+int zbud_copy_to_zbud(struct zbudref *zref, char *from_va, bool eph)
+{
+	struct zbudpage *zbudpage = zbudref_to_zbudpage(zref);
+	unsigned long budnum = zbudref_budnum(zref);
+	void *zbpg;
+	char *to_va;
+	unsigned size;
+	int ret = -1;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+
+	spin_lock(lists_lock);
+	zbudpage_spin_lock(zbudpage);
+	if (zbudpage_is_dying(zbudpage)) {
+		/* ignore dying zbudpage... see zbud_evict_pageframe_lru() */
+		goto out;
+	}
+	zbpg = kmap_zbudpage_atomic(zbudpage);
+	if (budnum == 0)
+		size = zbudpage->zbud0_size;
+	else
+		size = zbudpage->zbud1_size;
+	BUG_ON(size == 0 || size > zbud_max_size());
+	to_va = zbud_data(zbpg, budnum, size);
+	to_va += sizeof(struct tmem_handle);
+	size -= sizeof(struct tmem_handle);
+	memcpy(to_va, from_va, size);
+
+	kunmap_zbudpage_atomic(zbpg);
+	ret = 0;
+out:
+	zbudpage_spin_unlock(zbudpage);
+	spin_unlock(lists_lock);
+	return ret;
+}
+
+/*
+ * Choose an ephemeral LRU zbudpage that is evictable (not locked), ensure
+ * there are no references to it remaining, and return the now unused
+ * (and re-init'ed) struct page and the total amount of compressed
+ * data that was evicted.
+ */
+struct page *zbud_evict_pageframe_lru(unsigned int *zsize, unsigned int *zpages)
+{
+	struct zbudpage *zbudpage = NULL, *zbudpage2;
+	struct zbud_unbuddied *unbud = zbud_eph_unbuddied;
+	struct page *page = NULL;
+	bool irqs_disabled = irqs_disabled();
+
+	/*
+	 * Since this can be called indirectly from cleancache_put, which
+	 * has interrupts disabled, as well as frontswap_put, which does not,
+	 * we need to be able to handle both cases, even though it is ugly.
+	 */
+	if (irqs_disabled)
+		spin_lock(&zbud_eph_lists_lock);
+	else
+		spin_lock_bh(&zbud_eph_lists_lock);
+	*zsize = 0;
+	if (list_empty(&zbud_eph_lru_list))
+		goto unlock_out;
+	list_for_each_entry_safe(zbudpage, zbudpage2, &zbud_eph_lru_list, lru) {
+		/* skip a locked zbudpage */
+		if (unlikely(!zbudpage_spin_trylock(zbudpage)))
+			continue;
+		/* skip an unevictable zbudpage */
+		if (unlikely(zbudpage->unevictable != 0)) {
+			zbudpage_spin_unlock(zbudpage);
+			continue;
+		}
+		/* got a locked evictable page */
+		goto evict_page;
+
+	}
+unlock_out:
+	/* no unlocked evictable pages, give up */
+	if (irqs_disabled)
+		spin_unlock(&zbud_eph_lists_lock);
+	else
+		spin_unlock_bh(&zbud_eph_lists_lock);
+	goto out;
+
+evict_page:
+	list_del_init(&zbudpage->budlist);
+	list_del_init(&zbudpage->lru);
+	zbudpage_set_dying(zbudpage);
+	/*
+	 * the zbudpage is now "dying" and attempts to read, write,
+	 * or delete data from it will be ignored
+	 */
+	if (zbudpage->zbud0_size != 0 && zbudpage->zbud1_size !=  0) {
+		*zsize = zbudpage->zbud0_size + zbudpage->zbud1_size -
+				(2 * sizeof(struct tmem_handle));
+		*zpages = 2;
+	} else if (zbudpage->zbud0_size != 0) {
+		unbud[zbud_size_to_chunks(zbudpage->zbud0_size)].count--;
+		*zsize = zbudpage->zbud0_size - sizeof(struct tmem_handle);
+		*zpages = 1;
+	} else if (zbudpage->zbud1_size != 0) {
+		unbud[zbud_size_to_chunks(zbudpage->zbud1_size)].count--;
+		*zsize = zbudpage->zbud1_size - sizeof(struct tmem_handle);
+		*zpages = 1;
+	} else {
+		BUG();
+	}
+	spin_unlock(&zbud_eph_lists_lock);
+	zbud_eph_evicted_pageframes++;
+	if (*zpages == 1)
+		zbud_eph_unbuddied_count--;
+	else
+		zbud_eph_buddied_count--;
+	zbud_evict_tmem(zbudpage);
+	zbudpage_spin_lock(zbudpage);
+	zbudpage_clear_dying(zbudpage);
+	page = zbud_unuse_zbudpage(zbudpage, true);
+	if (!irqs_disabled)
+		local_bh_enable();
+out:
+	return page;
+}
+
+/*
+ * Choose a persistent LRU zbudpage that is evictable (not locked), zombify it,
+ * read the tmem_handle(s) out of it into the passed array, and return the
+ * number of zbuds.  Caller must perform necessary tmem functions and,
+ * indirectly, zbud functions to fetch any valid data and cause the
+ * now-zombified zbudpage to eventually be freed.  We track the zombified
+ * zbudpage count so it is possible to observe if there is a leak.
+ FIXME: describe (ramster) case where data pointers are passed in for memcpy
+ */
+unsigned int zbud_make_zombie_lru(struct tmem_handle *th, unsigned char **data,
+					unsigned int *zsize, bool eph)
+{
+	struct zbudpage *zbudpage = NULL, *zbudpag2;
+	struct tmem_handle *thfrom;
+	char *from_va;
+	void *zbpg;
+	unsigned size;
+	int ret = 0, i;
+	spinlock_t *lists_lock =
+		eph ? &zbud_eph_lists_lock : &zbud_pers_lists_lock;
+	struct list_head *lru_list =
+		eph ? &zbud_eph_lru_list : &zbud_pers_lru_list;
+
+	spin_lock_bh(lists_lock);
+	if (list_empty(lru_list))
+		goto out;
+	list_for_each_entry_safe(zbudpage, zbudpag2, lru_list, lru) {
+		/* skip a locked zbudpage */
+		if (unlikely(!zbudpage_spin_trylock(zbudpage)))
+			continue;
+		/* skip an unevictable zbudpage */
+		if (unlikely(zbudpage->unevictable != 0)) {
+			zbudpage_spin_unlock(zbudpage);
+			continue;
+		}
+		/* got a locked evictable page */
+		goto zombify_page;
+	}
+	/* no unlocked evictable pages, give up */
+	goto out;
+
+zombify_page:
+	/* got an unlocked evictable page, zombify it */
+	list_del_init(&zbudpage->budlist);
+	zbudpage_set_zombie(zbudpage);
+	/* FIXME what accounting do I need to do here? */
+	list_del_init(&zbudpage->lru);
+	if (eph) {
+		list_add_tail(&zbudpage->lru, &zbud_eph_zombie_list);
+		zbud_eph_zombie_count =
+				atomic_inc_return(&zbud_eph_zombie_atomic);
+	} else {
+		list_add_tail(&zbudpage->lru, &zbud_pers_zombie_list);
+		zbud_pers_zombie_count =
+				atomic_inc_return(&zbud_pers_zombie_atomic);
+	}
+	/* FIXME what accounting do I need to do here? */
+	zbpg = kmap_zbudpage_atomic(zbudpage);
+	for (i = 0; i < 2; i++) {
+		size = (i == 0) ? zbudpage->zbud0_size : zbudpage->zbud1_size;
+		if (size) {
+			from_va = zbud_data(zbpg, i, size);
+			thfrom = (struct tmem_handle *)from_va;
+			from_va += sizeof(struct tmem_handle);
+			size -= sizeof(struct tmem_handle);
+			if (th != NULL)
+				th[ret] = *thfrom;
+			if (data != NULL)
+				memcpy(data[ret], from_va, size);
+			if (zsize != NULL)
+				*zsize++ = size;
+			ret++;
+		}
+	}
+	kunmap_zbudpage_atomic(zbpg);
+	zbudpage_spin_unlock(zbudpage);
+out:
+	spin_unlock_bh(lists_lock);
+	return ret;
+}
+
+void __init zbud_init(void)
+{
+	int i;
+
+#ifdef CONFIG_DEBUG_FS
+	zbud_debugfs_init();
+#endif
+	BUG_ON((sizeof(struct tmem_handle) * 2 > CHUNK_SIZE));
+	BUG_ON(sizeof(struct zbudpage) > sizeof(struct page));
+	for (i = 0; i < NCHUNKS; i++) {
+		INIT_LIST_HEAD(&zbud_eph_unbuddied[i].list);
+		INIT_LIST_HEAD(&zbud_pers_unbuddied[i].list);
+	}
+}
diff --git a/drivers/staging/ramster/zbud.h b/drivers/staging/ramster/zbud.h
new file mode 100644
index 00000000000..891e8a7d5aa
--- /dev/null
+++ b/drivers/staging/ramster/zbud.h
@@ -0,0 +1,33 @@
+/*
+ * zbud.h
+ *
+ * Copyright (c) 2010-2012, Dan Magenheimer, Oracle Corp.
+ *
+ */
+
+#ifndef _ZBUD_H_
+#define _ZBUD_H_
+
+#include "tmem.h"
+
+struct zbudref;
+
+extern unsigned int zbud_max_buddy_size(void);
+extern struct zbudref *zbud_match_prep(struct tmem_handle *th, bool eph,
+						void *cdata, unsigned size);
+extern struct zbudref *zbud_create_prep(struct tmem_handle *th, bool eph,
+						void *cdata, unsigned size,
+						struct page *newpage);
+extern void zbud_create_finish(struct zbudref *, bool);
+extern int zbud_decompress(struct page *, struct zbudref *, bool,
+				void (*func)(char *, unsigned int, char *));
+extern int zbud_copy_from_zbud(char *, struct zbudref *, size_t *, bool);
+extern int zbud_copy_to_zbud(struct zbudref *, char *, bool);
+extern struct page *zbud_free_and_delist(struct zbudref *, bool eph,
+						unsigned int *, unsigned int *);
+extern struct page *zbud_evict_pageframe_lru(unsigned int *, unsigned int *);
+extern unsigned int zbud_make_zombie_lru(struct tmem_handle *, unsigned char **,
+						unsigned int *, bool);
+extern void zbud_init(void);
+
+#endif /* _ZBUD_H_ */
diff --git a/drivers/staging/ramster/zcache-main.c b/drivers/staging/ramster/zcache-main.c
index d46764b5aab..a09dd5cc1ce 100644
--- a/drivers/staging/ramster/zcache-main.c
+++ b/drivers/staging/ramster/zcache-main.c
@@ -5,1392 +5,322 @@
  * Copyright (c) 2010,2011, Nitin Gupta
  *
  * Zcache provides an in-kernel "host implementation" for transcendent memory
- * and, thus indirectly, for cleancache and frontswap.  Zcache includes two
- * page-accessible memory [1] interfaces, both utilizing lzo1x compression:
- * 1) "compression buddies" ("zbud") is used for ephemeral pages
- * 2) xvmalloc is used for persistent pages.
- * Xvmalloc (based on the TLSF allocator) has very low fragmentation
- * so maximizes space efficiency, while zbud allows pairs (and potentially,
- * in the future, more than a pair of) compressed pages to be closely linked
- * so that reclaiming can be done via the kernel's physical-page-oriented
- * "shrinker" interface.
- *
- * [1] For a definition of page-accessible memory (aka PAM), see:
- *   http://marc.info/?l=linux-mm&m=127811271605009
- *  RAMSTER TODO:
- *   - handle remotifying of buddied pages (see zbud_remotify_zbpg)
- *   - kernel boot params: nocleancache/nofrontswap don't always work?!?
+ * ("tmem") and, thus indirectly, for cleancache and frontswap.  Zcache uses
+ * lzo1x compression to improve density and an embedded allocator called
+ * "zbud" which "buddies" two compressed pages semi-optimally in each physical
+ * pageframe.  Zbud is integrally tied into tmem to allow pageframes to
+ * be "reclaimed" efficiently.
  */
 
 #include <linux/module.h>
 #include <linux/cpu.h>
 #include <linux/highmem.h>
 #include <linux/list.h>
-#include <linux/lzo.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/atomic.h>
 #include <linux/math64.h>
-#include "tmem.h"
-#include "zcache.h"
-#include "ramster.h"
-#include "cluster/tcp.h"
+#include <linux/crypto.h>
 
-#include "xvmalloc.h"	/* temporary until change to zsmalloc */
-
-#define	RAMSTER_TESTING
-
-#if (!defined(CONFIG_CLEANCACHE) && !defined(CONFIG_FRONTSWAP))
-#error "ramster is useless without CONFIG_CLEANCACHE or CONFIG_FRONTSWAP"
-#endif
-#ifdef CONFIG_CLEANCACHE
 #include <linux/cleancache.h>
-#endif
-#ifdef CONFIG_FRONTSWAP
 #include <linux/frontswap.h>
-#endif
-
-enum ramster_remotify_op {
-	RAMSTER_REMOTIFY_EPH_PUT,
-	RAMSTER_REMOTIFY_PERS_PUT,
-	RAMSTER_REMOTIFY_FLUSH_PAGE,
-	RAMSTER_REMOTIFY_FLUSH_OBJ,
-	RAMSTER_INTRANSIT_PERS
-};
-
-struct ramster_remotify_hdr {
-	enum ramster_remotify_op op;
-	struct list_head list;
-};
-
-#define ZBH_SENTINEL  0x43214321
-#define ZBPG_SENTINEL  0xdeadbeef
-
-#define ZBUD_MAX_BUDS 2
-
-struct zbud_hdr {
-	struct ramster_remotify_hdr rem_op;
-	uint16_t client_id;
-	uint16_t pool_id;
-	struct tmem_oid oid;
-	uint32_t index;
-	uint16_t size; /* compressed size in bytes, zero means unused */
-	DECL_SENTINEL
-};
-
-#define ZVH_SENTINEL  0x43214321
-static const int zv_max_page_size = (PAGE_SIZE / 8) * 7;
-
-struct zv_hdr {
-	struct ramster_remotify_hdr rem_op;
-	uint16_t client_id;
-	uint16_t pool_id;
-	struct tmem_oid oid;
-	uint32_t index;
-	DECL_SENTINEL
-};
-
-struct flushlist_node {
-	struct ramster_remotify_hdr rem_op;
-	struct tmem_xhandle xh;
-};
-
-union {
-	struct ramster_remotify_hdr rem_op;
-	struct zv_hdr zv;
-	struct zbud_hdr zbud;
-	struct flushlist_node flist;
-} remotify_list_node;
-
-static LIST_HEAD(zcache_rem_op_list);
-static DEFINE_SPINLOCK(zcache_rem_op_list_lock);
-
-#if 0
-/* this is more aggressive but may cause other problems? */
-#define ZCACHE_GFP_MASK	(GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN)
+#include "tmem.h"
+#include "zcache.h"
+#include "zbud.h"
+#include "ramster.h"
+#ifdef CONFIG_RAMSTER
+static int ramster_enabled;
 #else
-#define ZCACHE_GFP_MASK \
-	(__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC)
+#define ramster_enabled 0
 #endif
 
-#define MAX_POOLS_PER_CLIENT 16
-
-#define MAX_CLIENTS 16
-#define LOCAL_CLIENT ((uint16_t)-1)
-
-MODULE_LICENSE("GPL");
-
-struct zcache_client {
-	struct tmem_pool *tmem_pools[MAX_POOLS_PER_CLIENT];
-	struct xv_pool *xvpool;
-	bool allocated;
-	atomic_t refcount;
-};
-
-static struct zcache_client zcache_host;
-static struct zcache_client zcache_clients[MAX_CLIENTS];
-
-static inline uint16_t get_client_id_from_client(struct zcache_client *cli)
+#ifndef __PG_WAS_ACTIVE
+static inline bool PageWasActive(struct page *page)
 {
-	BUG_ON(cli == NULL);
-	if (cli == &zcache_host)
-		return LOCAL_CLIENT;
-	return cli - &zcache_clients[0];
+	return true;
 }
 
-static inline bool is_local_client(struct zcache_client *cli)
+static inline void SetPageWasActive(struct page *page)
 {
-	return cli == &zcache_host;
-}
-
-/**********
- * Compression buddies ("zbud") provides for packing two (or, possibly
- * in the future, more) compressed ephemeral pages into a single "raw"
- * (physical) page and tracking them with data structures so that
- * the raw pages can be easily reclaimed.
- *
- * A zbud page ("zbpg") is an aligned page containing a list_head,
- * a lock, and two "zbud headers".  The remainder of the physical
- * page is divided up into aligned 64-byte "chunks" which contain
- * the compressed data for zero, one, or two zbuds.  Each zbpg
- * resides on: (1) an "unused list" if it has no zbuds; (2) a
- * "buddied" list if it is fully populated  with two zbuds; or
- * (3) one of PAGE_SIZE/64 "unbuddied" lists indexed by how many chunks
- * the one unbuddied zbud uses.  The data inside a zbpg cannot be
- * read or written unless the zbpg's lock is held.
- */
-
-struct zbud_page {
-	struct list_head bud_list;
-	spinlock_t lock;
-	struct zbud_hdr buddy[ZBUD_MAX_BUDS];
-	DECL_SENTINEL
-	/* followed by NUM_CHUNK aligned CHUNK_SIZE-byte chunks */
-};
-
-#define CHUNK_SHIFT	6
-#define CHUNK_SIZE	(1 << CHUNK_SHIFT)
-#define CHUNK_MASK	(~(CHUNK_SIZE-1))
-#define NCHUNKS		(((PAGE_SIZE - sizeof(struct zbud_page)) & \
-				CHUNK_MASK) >> CHUNK_SHIFT)
-#define MAX_CHUNK	(NCHUNKS-1)
-
-static struct {
-	struct list_head list;
-	unsigned count;
-} zbud_unbuddied[NCHUNKS];
-/* list N contains pages with N chunks USED and NCHUNKS-N unused */
-/* element 0 is never used but optimizing that isn't worth it */
-static unsigned long zbud_cumul_chunk_counts[NCHUNKS];
-
-struct list_head zbud_buddied_list;
-static unsigned long zcache_zbud_buddied_count;
-
-/* protects the buddied list and all unbuddied lists */
-static DEFINE_SPINLOCK(zbud_budlists_spinlock);
-
-static atomic_t zcache_zbud_curr_raw_pages;
-static atomic_t zcache_zbud_curr_zpages;
-static unsigned long zcache_zbud_curr_zbytes;
-static unsigned long zcache_zbud_cumul_zpages;
-static unsigned long zcache_zbud_cumul_zbytes;
-static unsigned long zcache_compress_poor;
-static unsigned long zcache_policy_percent_exceeded;
-static unsigned long zcache_mean_compress_poor;
-
-/*
- * RAMster counters
- * - Remote pages are pages with a local pampd but the data is remote
- * - Foreign pages are pages stored locally but belonging to another node
- */
-static atomic_t ramster_remote_pers_pages = ATOMIC_INIT(0);
-static unsigned long ramster_pers_remotify_enable;
-static unsigned long ramster_eph_remotify_enable;
-static unsigned long ramster_eph_pages_remoted;
-static unsigned long ramster_eph_pages_remote_failed;
-static unsigned long ramster_pers_pages_remoted;
-static unsigned long ramster_pers_pages_remote_failed;
-static unsigned long ramster_pers_pages_remote_nomem;
-static unsigned long ramster_remote_objects_flushed;
-static unsigned long ramster_remote_object_flushes_failed;
-static unsigned long ramster_remote_pages_flushed;
-static unsigned long ramster_remote_page_flushes_failed;
-static unsigned long ramster_remote_eph_pages_succ_get;
-static unsigned long ramster_remote_pers_pages_succ_get;
-static unsigned long ramster_remote_eph_pages_unsucc_get;
-static unsigned long ramster_remote_pers_pages_unsucc_get;
-static atomic_t ramster_curr_flnode_count = ATOMIC_INIT(0);
-static unsigned long ramster_curr_flnode_count_max;
-static atomic_t ramster_foreign_eph_pampd_count = ATOMIC_INIT(0);
-static unsigned long ramster_foreign_eph_pampd_count_max;
-static atomic_t ramster_foreign_pers_pampd_count = ATOMIC_INIT(0);
-static unsigned long ramster_foreign_pers_pampd_count_max;
-
-/* forward references */
-static void *zcache_get_free_page(void);
-static void zcache_free_page(void *p);
-
-/*
- * zbud helper functions
- */
-
-static inline unsigned zbud_max_buddy_size(void)
-{
-	return MAX_CHUNK << CHUNK_SHIFT;
 }
+#endif
 
-static inline unsigned zbud_size_to_chunks(unsigned size)
+#ifdef FRONTSWAP_HAS_EXCLUSIVE_GETS
+static bool frontswap_has_exclusive_gets __read_mostly = true;
+#else
+static bool frontswap_has_exclusive_gets __read_mostly;
+static inline void frontswap_tmem_exclusive_gets(bool b)
 {
-	BUG_ON(size == 0 || size > zbud_max_buddy_size());
-	return (size + CHUNK_SIZE - 1) >> CHUNK_SHIFT;
-}
-
-static inline int zbud_budnum(struct zbud_hdr *zh)
-{
-	unsigned offset = (unsigned long)zh & (PAGE_SIZE - 1);
-	struct zbud_page *zbpg = NULL;
-	unsigned budnum = -1U;
-	int i;
-
-	for (i = 0; i < ZBUD_MAX_BUDS; i++)
-		if (offset == offsetof(typeof(*zbpg), buddy[i])) {
-			budnum = i;
-			break;
-		}
-	BUG_ON(budnum == -1U);
-	return budnum;
-}
-
-static char *zbud_data(struct zbud_hdr *zh, unsigned size)
-{
-	struct zbud_page *zbpg;
-	char *p;
-	unsigned budnum;
-
-	ASSERT_SENTINEL(zh, ZBH);
-	budnum = zbud_budnum(zh);
-	BUG_ON(size == 0 || size > zbud_max_buddy_size());
-	zbpg = container_of(zh, struct zbud_page, buddy[budnum]);
-	ASSERT_SPINLOCK(&zbpg->lock);
-	p = (char *)zbpg;
-	if (budnum == 0)
-		p += ((sizeof(struct zbud_page) + CHUNK_SIZE - 1) &
-							CHUNK_MASK);
-	else if (budnum == 1)
-		p += PAGE_SIZE - ((size + CHUNK_SIZE - 1) & CHUNK_MASK);
-	return p;
-}
-
-static void zbud_copy_from_pampd(char *data, size_t *size, struct zbud_hdr *zh)
-{
-	struct zbud_page *zbpg;
-	char *p;
-	unsigned budnum;
-
-	ASSERT_SENTINEL(zh, ZBH);
-	budnum = zbud_budnum(zh);
-	zbpg = container_of(zh, struct zbud_page, buddy[budnum]);
-	spin_lock(&zbpg->lock);
-	BUG_ON(zh->size > *size);
-	p = (char *)zbpg;
-	if (budnum == 0)
-		p += ((sizeof(struct zbud_page) + CHUNK_SIZE - 1) &
-							CHUNK_MASK);
-	else if (budnum == 1)
-		p += PAGE_SIZE - ((zh->size + CHUNK_SIZE - 1) & CHUNK_MASK);
-	/* client should be filled in by caller */
-	memcpy(data, p, zh->size);
-	*size = zh->size;
-	spin_unlock(&zbpg->lock);
-}
-
-/*
- * zbud raw page management
- */
-
-static struct zbud_page *zbud_alloc_raw_page(void)
-{
-	struct zbud_page *zbpg = NULL;
-	struct zbud_hdr *zh0, *zh1;
-		zbpg = zcache_get_free_page();
-	if (likely(zbpg != NULL)) {
-		INIT_LIST_HEAD(&zbpg->bud_list);
-		zh0 = &zbpg->buddy[0]; zh1 = &zbpg->buddy[1];
-		spin_lock_init(&zbpg->lock);
-		atomic_inc(&zcache_zbud_curr_raw_pages);
-		INIT_LIST_HEAD(&zbpg->bud_list);
-		SET_SENTINEL(zbpg, ZBPG);
-		zh0->size = 0; zh1->size = 0;
-		tmem_oid_set_invalid(&zh0->oid);
-		tmem_oid_set_invalid(&zh1->oid);
-	}
-	return zbpg;
 }
+#endif
 
-static void zbud_free_raw_page(struct zbud_page *zbpg)
-{
-	struct zbud_hdr *zh0 = &zbpg->buddy[0], *zh1 = &zbpg->buddy[1];
+static int zcache_enabled __read_mostly;
+static int disable_cleancache __read_mostly;
+static int disable_frontswap __read_mostly;
+static int disable_frontswap_ignore_nonactive __read_mostly;
+static int disable_cleancache_ignore_nonactive __read_mostly;
+static char *namestr __read_mostly = "zcache";
 
-	ASSERT_SENTINEL(zbpg, ZBPG);
-	BUG_ON(!list_empty(&zbpg->bud_list));
-	ASSERT_SPINLOCK(&zbpg->lock);
-	BUG_ON(zh0->size != 0 || tmem_oid_valid(&zh0->oid));
-	BUG_ON(zh1->size != 0 || tmem_oid_valid(&zh1->oid));
-	INVERT_SENTINEL(zbpg, ZBPG);
-	spin_unlock(&zbpg->lock);
-	atomic_dec(&zcache_zbud_curr_raw_pages);
-	zcache_free_page(zbpg);
-}
+#define ZCACHE_GFP_MASK \
+	(__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC)
 
-/*
- * core zbud handling routines
- */
+MODULE_LICENSE("GPL");
 
-static unsigned zbud_free(struct zbud_hdr *zh)
-{
-	unsigned size;
-
-	ASSERT_SENTINEL(zh, ZBH);
-	BUG_ON(!tmem_oid_valid(&zh->oid));
-	size = zh->size;
-	BUG_ON(zh->size == 0 || zh->size > zbud_max_buddy_size());
-	zh->size = 0;
-	tmem_oid_set_invalid(&zh->oid);
-	INVERT_SENTINEL(zh, ZBH);
-	zcache_zbud_curr_zbytes -= size;
-	atomic_dec(&zcache_zbud_curr_zpages);
-	return size;
-}
-
-static void zbud_free_and_delist(struct zbud_hdr *zh)
-{
-	unsigned chunks;
-	struct zbud_hdr *zh_other;
-	unsigned budnum = zbud_budnum(zh), size;
-	struct zbud_page *zbpg =
-		container_of(zh, struct zbud_page, buddy[budnum]);
-
-	/* FIXME, should be BUG_ON, pool destruction path doesn't disable
-	 * interrupts tmem_destroy_pool()->tmem_pampd_destroy_all_in_obj()->
-	 * tmem_objnode_node_destroy()-> zcache_pampd_free() */
-	WARN_ON(!irqs_disabled());
-	spin_lock(&zbpg->lock);
-	if (list_empty(&zbpg->bud_list)) {
-		/* ignore zombie page... see zbud_evict_pages() */
-		spin_unlock(&zbpg->lock);
-		return;
-	}
-	size = zbud_free(zh);
-	ASSERT_SPINLOCK(&zbpg->lock);
-	zh_other = &zbpg->buddy[(budnum == 0) ? 1 : 0];
-	if (zh_other->size == 0) { /* was unbuddied: unlist and free */
-		chunks = zbud_size_to_chunks(size) ;
-		spin_lock(&zbud_budlists_spinlock);
-		BUG_ON(list_empty(&zbud_unbuddied[chunks].list));
-		list_del_init(&zbpg->bud_list);
-		zbud_unbuddied[chunks].count--;
-		spin_unlock(&zbud_budlists_spinlock);
-		zbud_free_raw_page(zbpg);
-	} else { /* was buddied: move remaining buddy to unbuddied list */
-		chunks = zbud_size_to_chunks(zh_other->size) ;
-		spin_lock(&zbud_budlists_spinlock);
-		list_del_init(&zbpg->bud_list);
-		zcache_zbud_buddied_count--;
-		list_add_tail(&zbpg->bud_list, &zbud_unbuddied[chunks].list);
-		zbud_unbuddied[chunks].count++;
-		spin_unlock(&zbud_budlists_spinlock);
-		spin_unlock(&zbpg->lock);
-	}
-}
+/* crypto API for zcache  */
+#define ZCACHE_COMP_NAME_SZ CRYPTO_MAX_ALG_NAME
+static char zcache_comp_name[ZCACHE_COMP_NAME_SZ] __read_mostly;
+static struct crypto_comp * __percpu *zcache_comp_pcpu_tfms __read_mostly;
 
-static struct zbud_hdr *zbud_create(uint16_t client_id, uint16_t pool_id,
-					struct tmem_oid *oid,
-					uint32_t index, struct page *page,
-					void *cdata, unsigned size)
-{
-	struct zbud_hdr *zh0, *zh1, *zh = NULL;
-	struct zbud_page *zbpg = NULL, *ztmp;
-	unsigned nchunks;
-	char *to;
-	int i, found_good_buddy = 0;
-
-	nchunks = zbud_size_to_chunks(size) ;
-	for (i = MAX_CHUNK - nchunks + 1; i > 0; i--) {
-		spin_lock(&zbud_budlists_spinlock);
-		if (!list_empty(&zbud_unbuddied[i].list)) {
-			list_for_each_entry_safe(zbpg, ztmp,
-				    &zbud_unbuddied[i].list, bud_list) {
-				if (spin_trylock(&zbpg->lock)) {
-					found_good_buddy = i;
-					goto found_unbuddied;
-				}
-			}
-		}
-		spin_unlock(&zbud_budlists_spinlock);
-	}
-	/* didn't find a good buddy, try allocating a new page */
-	zbpg = zbud_alloc_raw_page();
-	if (unlikely(zbpg == NULL))
-		goto out;
-	/* ok, have a page, now compress the data before taking locks */
-	spin_lock(&zbud_budlists_spinlock);
-	spin_lock(&zbpg->lock);
-	list_add_tail(&zbpg->bud_list, &zbud_unbuddied[nchunks].list);
-	zbud_unbuddied[nchunks].count++;
-	zh = &zbpg->buddy[0];
-	goto init_zh;
-
-found_unbuddied:
-	ASSERT_SPINLOCK(&zbpg->lock);
-	zh0 = &zbpg->buddy[0]; zh1 = &zbpg->buddy[1];
-	BUG_ON(!((zh0->size == 0) ^ (zh1->size == 0)));
-	if (zh0->size != 0) { /* buddy0 in use, buddy1 is vacant */
-		ASSERT_SENTINEL(zh0, ZBH);
-		zh = zh1;
-	} else if (zh1->size != 0) { /* buddy1 in use, buddy0 is vacant */
-		ASSERT_SENTINEL(zh1, ZBH);
-		zh = zh0;
-	} else
-		BUG();
-	list_del_init(&zbpg->bud_list);
-	zbud_unbuddied[found_good_buddy].count--;
-	list_add_tail(&zbpg->bud_list, &zbud_buddied_list);
-	zcache_zbud_buddied_count++;
-
-init_zh:
-	SET_SENTINEL(zh, ZBH);
-	zh->size = size;
-	zh->index = index;
-	zh->oid = *oid;
-	zh->pool_id = pool_id;
-	zh->client_id = client_id;
-	to = zbud_data(zh, size);
-	memcpy(to, cdata, size);
-	spin_unlock(&zbpg->lock);
-	spin_unlock(&zbud_budlists_spinlock);
-	zbud_cumul_chunk_counts[nchunks]++;
-	atomic_inc(&zcache_zbud_curr_zpages);
-	zcache_zbud_cumul_zpages++;
-	zcache_zbud_curr_zbytes += size;
-	zcache_zbud_cumul_zbytes += size;
-out:
-	return zh;
-}
+enum comp_op {
+	ZCACHE_COMPOP_COMPRESS,
+	ZCACHE_COMPOP_DECOMPRESS
+};
 
-static int zbud_decompress(struct page *page, struct zbud_hdr *zh)
+static inline int zcache_comp_op(enum comp_op op,
+				const u8 *src, unsigned int slen,
+				u8 *dst, unsigned int *dlen)
 {
-	struct zbud_page *zbpg;
-	unsigned budnum = zbud_budnum(zh);
-	size_t out_len = PAGE_SIZE;
-	char *to_va, *from_va;
-	unsigned size;
-	int ret = 0;
+	struct crypto_comp *tfm;
+	int ret = -1;
 
-	zbpg = container_of(zh, struct zbud_page, buddy[budnum]);
-	spin_lock(&zbpg->lock);
-	if (list_empty(&zbpg->bud_list)) {
-		/* ignore zombie page... see zbud_evict_pages() */
+	BUG_ON(!zcache_comp_pcpu_tfms);
+	tfm = *per_cpu_ptr(zcache_comp_pcpu_tfms, get_cpu());
+	BUG_ON(!tfm);
+	switch (op) {
+	case ZCACHE_COMPOP_COMPRESS:
+		ret = crypto_comp_compress(tfm, src, slen, dst, dlen);
+		break;
+	case ZCACHE_COMPOP_DECOMPRESS:
+		ret = crypto_comp_decompress(tfm, src, slen, dst, dlen);
+		break;
+	default:
 		ret = -EINVAL;
-		goto out;
 	}
-	ASSERT_SENTINEL(zh, ZBH);
-	BUG_ON(zh->size == 0 || zh->size > zbud_max_buddy_size());
-	to_va = kmap_atomic(page);
-	size = zh->size;
-	from_va = zbud_data(zh, size);
-	ret = lzo1x_decompress_safe(from_va, size, to_va, &out_len);
-	BUG_ON(ret != LZO_E_OK);
-	BUG_ON(out_len != PAGE_SIZE);
-	kunmap_atomic(to_va);
-out:
-	spin_unlock(&zbpg->lock);
+	put_cpu();
 	return ret;
 }
 
 /*
- * The following routines handle shrinking of ephemeral pages by evicting
- * pages "least valuable" first.
- */
-
-static unsigned long zcache_evicted_raw_pages;
-static unsigned long zcache_evicted_buddied_pages;
-static unsigned long zcache_evicted_unbuddied_pages;
-
-static struct tmem_pool *zcache_get_pool_by_id(uint16_t cli_id,
-						uint16_t poolid);
-static void zcache_put_pool(struct tmem_pool *pool);
-
-/*
- * Flush and free all zbuds in a zbpg, then free the pageframe
- */
-static void zbud_evict_zbpg(struct zbud_page *zbpg)
-{
-	struct zbud_hdr *zh;
-	int i, j;
-	uint32_t pool_id[ZBUD_MAX_BUDS], client_id[ZBUD_MAX_BUDS];
-	uint32_t index[ZBUD_MAX_BUDS];
-	struct tmem_oid oid[ZBUD_MAX_BUDS];
-	struct tmem_pool *pool;
-	unsigned long flags;
-
-	ASSERT_SPINLOCK(&zbpg->lock);
-	for (i = 0, j = 0; i < ZBUD_MAX_BUDS; i++) {
-		zh = &zbpg->buddy[i];
-		if (zh->size) {
-			client_id[j] = zh->client_id;
-			pool_id[j] = zh->pool_id;
-			oid[j] = zh->oid;
-			index[j] = zh->index;
-			j++;
-		}
-	}
-	spin_unlock(&zbpg->lock);
-	for (i = 0; i < j; i++) {
-		pool = zcache_get_pool_by_id(client_id[i], pool_id[i]);
-		BUG_ON(pool == NULL);
-		local_irq_save(flags);
-		/* these flushes should dispose of any local storage */
-		tmem_flush_page(pool, &oid[i], index[i]);
-		local_irq_restore(flags);
-		zcache_put_pool(pool);
-	}
-}
-
-/*
- * Free nr pages.  This code is funky because we want to hold the locks
- * protecting various lists for as short a time as possible, and in some
- * circumstances the list may change asynchronously when the list lock is
- * not held.  In some cases we also trylock not only to avoid waiting on a
- * page in use by another cpu, but also to avoid potential deadlock due to
- * lock inversion.
- */
-static void zbud_evict_pages(int nr)
-{
-	struct zbud_page *zbpg;
-	int i, newly_unused_pages = 0;
-
-
-	/* now try freeing unbuddied pages, starting with least space avail */
-	for (i = 0; i < MAX_CHUNK; i++) {
-retry_unbud_list_i:
-		spin_lock_bh(&zbud_budlists_spinlock);
-		if (list_empty(&zbud_unbuddied[i].list)) {
-			spin_unlock_bh(&zbud_budlists_spinlock);
-			continue;
-		}
-		list_for_each_entry(zbpg, &zbud_unbuddied[i].list, bud_list) {
-			if (unlikely(!spin_trylock(&zbpg->lock)))
-				continue;
-			zbud_unbuddied[i].count--;
-			spin_unlock(&zbud_budlists_spinlock);
-			zcache_evicted_unbuddied_pages++;
-			/* want budlists unlocked when doing zbpg eviction */
-			zbud_evict_zbpg(zbpg);
-			newly_unused_pages++;
-			local_bh_enable();
-			if (--nr <= 0)
-				goto evict_unused;
-			goto retry_unbud_list_i;
-		}
-		spin_unlock_bh(&zbud_budlists_spinlock);
-	}
-
-	/* as a last resort, free buddied pages */
-retry_bud_list:
-	spin_lock_bh(&zbud_budlists_spinlock);
-	if (list_empty(&zbud_buddied_list)) {
-		spin_unlock_bh(&zbud_budlists_spinlock);
-		goto evict_unused;
-	}
-	list_for_each_entry(zbpg, &zbud_buddied_list, bud_list) {
-		if (unlikely(!spin_trylock(&zbpg->lock)))
-			continue;
-		zcache_zbud_buddied_count--;
-		spin_unlock(&zbud_budlists_spinlock);
-		zcache_evicted_buddied_pages++;
-		/* want budlists unlocked when doing zbpg eviction */
-		zbud_evict_zbpg(zbpg);
-		newly_unused_pages++;
-		local_bh_enable();
-		if (--nr <= 0)
-			goto evict_unused;
-		goto retry_bud_list;
-	}
-	spin_unlock_bh(&zbud_budlists_spinlock);
-
-evict_unused:
-	return;
-}
-
-static DEFINE_PER_CPU(unsigned char *, zcache_remoteputmem);
-
-static int zbud_remotify_zbud(struct tmem_xhandle *xh, char *data,
-				size_t size)
-{
-	struct tmem_pool *pool;
-	int i, remotenode, ret = -1;
-	unsigned char cksum, *p;
-	unsigned long flags;
-
-	for (p = data, cksum = 0, i = 0; i < size; i++)
-		cksum += *p;
-	ret = ramster_remote_put(xh, data, size, true, &remotenode);
-	if (ret == 0) {
-		/* data was successfully remoted so change the local version
-		 * to point to the remote node where it landed */
-		pool = zcache_get_pool_by_id(LOCAL_CLIENT, xh->pool_id);
-		BUG_ON(pool == NULL);
-		local_irq_save(flags);
-		/* tmem_replace will also free up any local space */
-		(void)tmem_replace(pool, &xh->oid, xh->index,
-			pampd_make_remote(remotenode, size, cksum));
-		local_irq_restore(flags);
-		zcache_put_pool(pool);
-		ramster_eph_pages_remoted++;
-		ret = 0;
-	} else
-		ramster_eph_pages_remote_failed++;
-	return ret;
-}
-
-static int zbud_remotify_zbpg(struct zbud_page *zbpg)
-{
-	struct zbud_hdr *zh1, *zh2 = NULL;
-	struct tmem_xhandle xh1, xh2 = { 0 };
-	char *data1 = NULL, *data2 = NULL;
-	size_t size1 = 0, size2 = 0;
-	int ret = 0;
-	unsigned char *tmpmem = __get_cpu_var(zcache_remoteputmem);
-
-	ASSERT_SPINLOCK(&zbpg->lock);
-	if (zbpg->buddy[0].size == 0)
-		zh1 = &zbpg->buddy[1];
-	else if (zbpg->buddy[1].size == 0)
-		zh1 = &zbpg->buddy[0];
-	else {
-		zh1 = &zbpg->buddy[0];
-		zh2 = &zbpg->buddy[1];
-	}
-	/* don't remotify pages that are already remotified */
-	if (zh1->client_id != LOCAL_CLIENT)
-		zh1 = NULL;
-	if ((zh2 != NULL) && (zh2->client_id != LOCAL_CLIENT))
-		zh2 = NULL;
-
-	/* copy the data and metadata so can release lock */
-	if (zh1 != NULL) {
-		xh1.client_id = zh1->client_id;
-		xh1.pool_id = zh1->pool_id;
-		xh1.oid = zh1->oid;
-		xh1.index = zh1->index;
-		size1 = zh1->size;
-		data1 = zbud_data(zh1, size1);
-		memcpy(tmpmem, zbud_data(zh1, size1), size1);
-		data1 = tmpmem;
-		tmpmem += size1;
-	}
-	if (zh2 != NULL) {
-		xh2.client_id = zh2->client_id;
-		xh2.pool_id = zh2->pool_id;
-		xh2.oid = zh2->oid;
-		xh2.index = zh2->index;
-		size2 = zh2->size;
-		memcpy(tmpmem, zbud_data(zh2, size2), size2);
-		data2 = tmpmem;
-	}
-	spin_unlock(&zbpg->lock);
-	preempt_enable();
-
-	/* OK, no locks held anymore, remotify one or both zbuds */
-	if (zh1 != NULL)
-		ret = zbud_remotify_zbud(&xh1, data1, size1);
-	if (zh2 != NULL)
-		ret |= zbud_remotify_zbud(&xh2, data2, size2);
-	return ret;
-}
-
-void zbud_remotify_pages(int nr)
-{
-	struct zbud_page *zbpg;
-	int i, ret;
-
-	/*
-	 * for now just try remotifying unbuddied pages, starting with
-	 * least space avail
-	 */
-	for (i = 0; i < MAX_CHUNK; i++) {
-retry_unbud_list_i:
-		preempt_disable();  /* enable in zbud_remotify_zbpg */
-		spin_lock_bh(&zbud_budlists_spinlock);
-		if (list_empty(&zbud_unbuddied[i].list)) {
-			spin_unlock_bh(&zbud_budlists_spinlock);
-			preempt_enable();
-			continue; /* next i in for loop */
-		}
-		list_for_each_entry(zbpg, &zbud_unbuddied[i].list, bud_list) {
-			if (unlikely(!spin_trylock(&zbpg->lock)))
-				continue; /* next list_for_each_entry */
-			zbud_unbuddied[i].count--;
-			/* want budlists unlocked when doing zbpg remotify */
-			spin_unlock_bh(&zbud_budlists_spinlock);
-			ret = zbud_remotify_zbpg(zbpg);
-			/* preemption is re-enabled in zbud_remotify_zbpg */
-			if (ret == 0) {
-				if (--nr <= 0)
-					goto out;
-				goto retry_unbud_list_i;
-			}
-			/* if fail to remotify any page, quit */
-			pr_err("TESTING zbud_remotify_pages failed on page,"
-				" trying to re-add\n");
-			spin_lock_bh(&zbud_budlists_spinlock);
-			spin_lock(&zbpg->lock);
-			list_add_tail(&zbpg->bud_list, &zbud_unbuddied[i].list);
-			zbud_unbuddied[i].count++;
-			spin_unlock(&zbpg->lock);
-			spin_unlock_bh(&zbud_budlists_spinlock);
-			pr_err("TESTING zbud_remotify_pages failed on page,"
-				" finished re-add\n");
-			goto out;
-		}
-		spin_unlock_bh(&zbud_budlists_spinlock);
-		preempt_enable();
-	}
-
-next_buddied_zbpg:
-	preempt_disable();  /* enable in zbud_remotify_zbpg */
-	spin_lock_bh(&zbud_budlists_spinlock);
-	if (list_empty(&zbud_buddied_list))
-		goto unlock_out;
-	list_for_each_entry(zbpg, &zbud_buddied_list, bud_list) {
-		if (unlikely(!spin_trylock(&zbpg->lock)))
-			continue; /* next list_for_each_entry */
-		zcache_zbud_buddied_count--;
-		/* want budlists unlocked when doing zbpg remotify */
-		spin_unlock_bh(&zbud_budlists_spinlock);
-		ret = zbud_remotify_zbpg(zbpg);
-		/* preemption is re-enabled in zbud_remotify_zbpg */
-		if (ret == 0) {
-			if (--nr <= 0)
-				goto out;
-			goto next_buddied_zbpg;
-		}
-		/* if fail to remotify any page, quit */
-		pr_err("TESTING zbud_remotify_pages failed on BUDDIED page,"
-			" trying to re-add\n");
-		spin_lock_bh(&zbud_budlists_spinlock);
-		spin_lock(&zbpg->lock);
-		list_add_tail(&zbpg->bud_list, &zbud_buddied_list);
-		zcache_zbud_buddied_count++;
-		spin_unlock(&zbpg->lock);
-		spin_unlock_bh(&zbud_budlists_spinlock);
-		pr_err("TESTING zbud_remotify_pages failed on BUDDIED page,"
-			" finished re-add\n");
-		goto out;
-	}
-unlock_out:
-	spin_unlock_bh(&zbud_budlists_spinlock);
-	preempt_enable();
-out:
-	return;
-}
-
-/* the "flush list" asynchronously collects pages to remotely flush */
-#define FLUSH_ENTIRE_OBJECT ((uint32_t)-1)
-static void ramster_flnode_free(struct flushlist_node *,
-				struct tmem_pool *);
-
-static void zcache_remote_flush_page(struct flushlist_node *flnode)
-{
-	struct tmem_xhandle *xh;
-	int remotenode, ret;
-
-	preempt_disable();
-	xh = &flnode->xh;
-	remotenode = flnode->xh.client_id;
-	ret = ramster_remote_flush(xh, remotenode);
-	if (ret >= 0)
-		ramster_remote_pages_flushed++;
-	else
-		ramster_remote_page_flushes_failed++;
-	preempt_enable_no_resched();
-	ramster_flnode_free(flnode, NULL);
-}
-
-static void zcache_remote_flush_object(struct flushlist_node *flnode)
-{
-	struct tmem_xhandle *xh;
-	int remotenode, ret;
-
-	preempt_disable();
-	xh = &flnode->xh;
-	remotenode = flnode->xh.client_id;
-	ret = ramster_remote_flush_object(xh, remotenode);
-	if (ret >= 0)
-		ramster_remote_objects_flushed++;
-	else
-		ramster_remote_object_flushes_failed++;
-	preempt_enable_no_resched();
-	ramster_flnode_free(flnode, NULL);
-}
-
-static void zcache_remote_eph_put(struct zbud_hdr *zbud)
-{
-	/* FIXME */
-}
-
-static void zcache_remote_pers_put(struct zv_hdr *zv)
-{
-	struct tmem_xhandle xh;
-	uint16_t size;
-	bool ephemeral;
-	int remotenode, ret = -1;
-	char *data;
-	struct tmem_pool *pool;
-	unsigned long flags;
-	unsigned char cksum;
-	char *p;
-	int i;
-	unsigned char *tmpmem = __get_cpu_var(zcache_remoteputmem);
-
-	ASSERT_SENTINEL(zv, ZVH);
-	BUG_ON(zv->client_id != LOCAL_CLIENT);
-	local_bh_disable();
-	xh.client_id = zv->client_id;
-	xh.pool_id = zv->pool_id;
-	xh.oid = zv->oid;
-	xh.index = zv->index;
-	size = xv_get_object_size(zv) - sizeof(*zv);
-	BUG_ON(size == 0 || size > zv_max_page_size);
-	data = (char *)zv + sizeof(*zv);
-	for (p = data, cksum = 0, i = 0; i < size; i++)
-		cksum += *p;
-	memcpy(tmpmem, data, size);
-	data = tmpmem;
-	pool = zcache_get_pool_by_id(zv->client_id, zv->pool_id);
-	ephemeral = is_ephemeral(pool);
-	zcache_put_pool(pool);
-	/* now OK to release lock set in caller */
-	spin_unlock(&zcache_rem_op_list_lock);
-	local_bh_enable();
-	preempt_disable();
-	ret = ramster_remote_put(&xh, data, size, ephemeral, &remotenode);
-	preempt_enable_no_resched();
-	if (ret != 0) {
-		/*
-		 * This is some form of a memory leak... if the remote put
-		 * fails, there will never be another attempt to remotify
-		 * this page.  But since we've dropped the zv pointer,
-		 * the page may have been freed or the data replaced
-		 * so we can't just "put it back" in the remote op list.
-		 * Even if we could, not sure where to put it in the list
-		 * because there may be flushes that must be strictly
-		 * ordered vs the put.  So leave this as a FIXME for now.
-		 * But count them so we know if it becomes a problem.
-		 */
-		ramster_pers_pages_remote_failed++;
-		goto out;
-	} else
-		atomic_inc(&ramster_remote_pers_pages);
-	ramster_pers_pages_remoted++;
-	/*
-	 * data was successfully remoted so change the local version to
-	 * point to the remote node where it landed
-	 */
-	local_bh_disable();
-	pool = zcache_get_pool_by_id(LOCAL_CLIENT, xh.pool_id);
-	local_irq_save(flags);
-	(void)tmem_replace(pool, &xh.oid, xh.index,
-			pampd_make_remote(remotenode, size, cksum));
-	local_irq_restore(flags);
-	zcache_put_pool(pool);
-	local_bh_enable();
-out:
-	return;
-}
-
-static void zcache_do_remotify_ops(int nr)
-{
-	struct ramster_remotify_hdr *rem_op;
-	union remotify_list_node *u;
-
-	while (1) {
-		if (!nr)
-			goto out;
-		spin_lock(&zcache_rem_op_list_lock);
-		if (list_empty(&zcache_rem_op_list)) {
-			spin_unlock(&zcache_rem_op_list_lock);
-			goto out;
-		}
-		rem_op = list_first_entry(&zcache_rem_op_list,
-				struct ramster_remotify_hdr, list);
-		list_del_init(&rem_op->list);
-		if (rem_op->op != RAMSTER_REMOTIFY_PERS_PUT)
-			spin_unlock(&zcache_rem_op_list_lock);
-		u = (union remotify_list_node *)rem_op;
-		switch (rem_op->op) {
-		case RAMSTER_REMOTIFY_EPH_PUT:
-BUG();
-			zcache_remote_eph_put((struct zbud_hdr *)rem_op);
-			break;
-		case RAMSTER_REMOTIFY_PERS_PUT:
-			zcache_remote_pers_put((struct zv_hdr *)rem_op);
-			break;
-		case RAMSTER_REMOTIFY_FLUSH_PAGE:
-			zcache_remote_flush_page((struct flushlist_node *)u);
-			break;
-		case RAMSTER_REMOTIFY_FLUSH_OBJ:
-			zcache_remote_flush_object((struct flushlist_node *)u);
-			break;
-		default:
-			BUG();
-		}
-	}
-out:
-	return;
-}
-
-/*
- * Communicate interface revision with userspace
- */
-#include "cluster/ramster_nodemanager.h"
-static unsigned long ramster_interface_revision  = R2NM_API_VERSION;
-
-/*
- * For now, just push over a few pages every few seconds to
- * ensure that it basically works
- */
-static struct workqueue_struct *ramster_remotify_workqueue;
-static void ramster_remotify_process(struct work_struct *work);
-static DECLARE_DELAYED_WORK(ramster_remotify_worker,
-		ramster_remotify_process);
-
-static void ramster_remotify_queue_delayed_work(unsigned long delay)
-{
-	if (!queue_delayed_work(ramster_remotify_workqueue,
-				&ramster_remotify_worker, delay))
-		pr_err("ramster_remotify: bad workqueue\n");
-}
-
-
-static int use_frontswap;
-static int use_cleancache;
-static int ramster_remote_target_nodenum = -1;
-static void ramster_remotify_process(struct work_struct *work)
-{
-	static bool remotify_in_progress;
-
-	BUG_ON(irqs_disabled());
-	if (remotify_in_progress)
-		ramster_remotify_queue_delayed_work(HZ);
-	else if (ramster_remote_target_nodenum != -1) {
-		remotify_in_progress = true;
-#ifdef CONFIG_CLEANCACHE
-	if (use_cleancache && ramster_eph_remotify_enable)
-		zbud_remotify_pages(5000); /* FIXME is this a good number? */
-#endif
-#ifdef CONFIG_FRONTSWAP
-	if (use_frontswap && ramster_pers_remotify_enable)
-		zcache_do_remotify_ops(500); /* FIXME is this a good number? */
-#endif
-		remotify_in_progress = false;
-		ramster_remotify_queue_delayed_work(HZ);
-	}
-}
-
-static void ramster_remotify_init(void)
-{
-	unsigned long n = 60UL;
-	ramster_remotify_workqueue =
-		create_singlethread_workqueue("ramster_remotify");
-	ramster_remotify_queue_delayed_work(n * HZ);
-}
-
-
-static void zbud_init(void)
-{
-	int i;
-
-	INIT_LIST_HEAD(&zbud_buddied_list);
-	zcache_zbud_buddied_count = 0;
-	for (i = 0; i < NCHUNKS; i++) {
-		INIT_LIST_HEAD(&zbud_unbuddied[i].list);
-		zbud_unbuddied[i].count = 0;
-	}
-}
-
-#ifdef CONFIG_SYSFS
-/*
- * These sysfs routines show a nice distribution of how many zbpg's are
- * currently (and have ever been placed) in each unbuddied list.  It's fun
- * to watch but can probably go away before final merge.
+ * policy parameters
  */
-static int zbud_show_unbuddied_list_counts(char *buf)
-{
-	int i;
-	char *p = buf;
-
-	for (i = 0; i < NCHUNKS; i++)
-		p += sprintf(p, "%u ", zbud_unbuddied[i].count);
-	return p - buf;
-}
-
-static int zbud_show_cumul_chunk_counts(char *buf)
-{
-	unsigned long i, chunks = 0, total_chunks = 0, sum_total_chunks = 0;
-	unsigned long total_chunks_lte_21 = 0, total_chunks_lte_32 = 0;
-	unsigned long total_chunks_lte_42 = 0;
-	char *p = buf;
-
-	for (i = 0; i < NCHUNKS; i++) {
-		p += sprintf(p, "%lu ", zbud_cumul_chunk_counts[i]);
-		chunks += zbud_cumul_chunk_counts[i];
-		total_chunks += zbud_cumul_chunk_counts[i];
-		sum_total_chunks += i * zbud_cumul_chunk_counts[i];
-		if (i == 21)
-			total_chunks_lte_21 = total_chunks;
-		if (i == 32)
-			total_chunks_lte_32 = total_chunks;
-		if (i == 42)
-			total_chunks_lte_42 = total_chunks;
-	}
-	p += sprintf(p, "<=21:%lu <=32:%lu <=42:%lu, mean:%lu\n",
-		total_chunks_lte_21, total_chunks_lte_32, total_chunks_lte_42,
-		chunks == 0 ? 0 : sum_total_chunks / chunks);
-	return p - buf;
-}
-#endif
 
-/**********
- * This "zv" PAM implementation combines the TLSF-based xvMalloc
- * with lzo1x compression to maximize the amount of data that can
- * be packed into a physical page.
- *
- * Zv represents a PAM page with the index and object (plus a "size" value
- * necessary for decompression) immediately preceding the compressed data.
- */
-
-/* rudimentary policy limits */
-/* total number of persistent pages may not exceed this percentage */
-static unsigned int zv_page_count_policy_percent = 75;
 /*
  * byte count defining poor compression; pages with greater zsize will be
  * rejected
  */
-static unsigned int zv_max_zsize = (PAGE_SIZE / 8) * 7;
+static unsigned int zbud_max_zsize __read_mostly = (PAGE_SIZE / 8) * 7;
 /*
  * byte count defining poor *mean* compression; pages with greater zsize
  * will be rejected until sufficient better-compressed pages are accepted
  * driving the mean below this threshold
  */
-static unsigned int zv_max_mean_zsize = (PAGE_SIZE / 8) * 5;
-
-static atomic_t zv_curr_dist_counts[NCHUNKS];
-static atomic_t zv_cumul_dist_counts[NCHUNKS];
+static unsigned int zbud_max_mean_zsize __read_mostly = (PAGE_SIZE / 8) * 5;
 
-
-static struct zv_hdr *zv_create(struct zcache_client *cli, uint32_t pool_id,
-				struct tmem_oid *oid, uint32_t index,
-				void *cdata, unsigned clen)
-{
-	struct page *page;
-	struct zv_hdr *zv = NULL;
-	uint32_t offset;
-	int alloc_size = clen + sizeof(struct zv_hdr);
-	int chunks = (alloc_size + (CHUNK_SIZE - 1)) >> CHUNK_SHIFT;
-	int ret;
-
-	BUG_ON(!irqs_disabled());
-	BUG_ON(chunks >= NCHUNKS);
-	ret = xv_malloc(cli->xvpool, clen + sizeof(struct zv_hdr),
-			&page, &offset, ZCACHE_GFP_MASK);
-	if (unlikely(ret))
-		goto out;
-	atomic_inc(&zv_curr_dist_counts[chunks]);
-	atomic_inc(&zv_cumul_dist_counts[chunks]);
-	zv = kmap_atomic(page) + offset;
-	zv->index = index;
-	zv->oid = *oid;
-	zv->pool_id = pool_id;
-	SET_SENTINEL(zv, ZVH);
-	INIT_LIST_HEAD(&zv->rem_op.list);
-	zv->client_id = get_client_id_from_client(cli);
-	zv->rem_op.op = RAMSTER_REMOTIFY_PERS_PUT;
-	if (zv->client_id == LOCAL_CLIENT) {
-		spin_lock(&zcache_rem_op_list_lock);
-		list_add_tail(&zv->rem_op.list, &zcache_rem_op_list);
-		spin_unlock(&zcache_rem_op_list_lock);
-	}
-	memcpy((char *)zv + sizeof(struct zv_hdr), cdata, clen);
-	kunmap_atomic(zv);
-out:
-	return zv;
-}
-
-/* similar to zv_create, but just reserve space, no data yet */
-static struct zv_hdr *zv_alloc(struct tmem_pool *pool,
-				struct tmem_oid *oid, uint32_t index,
-				unsigned clen)
-{
-	struct zcache_client *cli = pool->client;
-	struct page *page;
-	struct zv_hdr *zv = NULL;
-	uint32_t offset;
-	int ret;
-
-	BUG_ON(!irqs_disabled());
-	BUG_ON(!is_local_client(pool->client));
-	ret = xv_malloc(cli->xvpool, clen + sizeof(struct zv_hdr),
-			&page, &offset, ZCACHE_GFP_MASK);
-	if (unlikely(ret))
-		goto out;
-	zv = kmap_atomic(page) + offset;
-	SET_SENTINEL(zv, ZVH);
-	INIT_LIST_HEAD(&zv->rem_op.list);
-	zv->client_id = LOCAL_CLIENT;
-	zv->rem_op.op = RAMSTER_INTRANSIT_PERS;
-	zv->index = index;
-	zv->oid = *oid;
-	zv->pool_id = pool->pool_id;
-	kunmap_atomic(zv);
-out:
-	return zv;
-}
-
-static void zv_free(struct xv_pool *xvpool, struct zv_hdr *zv)
-{
-	unsigned long flags;
-	struct page *page;
-	uint32_t offset;
-	uint16_t size = xv_get_object_size(zv);
-	int chunks = (size + (CHUNK_SIZE - 1)) >> CHUNK_SHIFT;
-
-	ASSERT_SENTINEL(zv, ZVH);
-	BUG_ON(chunks >= NCHUNKS);
-	atomic_dec(&zv_curr_dist_counts[chunks]);
-	size -= sizeof(*zv);
-	spin_lock(&zcache_rem_op_list_lock);
-	size = xv_get_object_size(zv) - sizeof(*zv);
-	BUG_ON(size == 0);
-	INVERT_SENTINEL(zv, ZVH);
-	if (!list_empty(&zv->rem_op.list))
-		list_del_init(&zv->rem_op.list);
-	spin_unlock(&zcache_rem_op_list_lock);
-	page = virt_to_page(zv);
-	offset = (unsigned long)zv & ~PAGE_MASK;
-	local_irq_save(flags);
-	xv_free(xvpool, page, offset);
-	local_irq_restore(flags);
-}
-
-static void zv_decompress(struct page *page, struct zv_hdr *zv)
-{
-	size_t clen = PAGE_SIZE;
-	char *to_va;
-	unsigned size;
-	int ret;
-
-	ASSERT_SENTINEL(zv, ZVH);
-	size = xv_get_object_size(zv) - sizeof(*zv);
-	BUG_ON(size == 0);
-	to_va = kmap_atomic(page);
-	ret = lzo1x_decompress_safe((char *)zv + sizeof(*zv),
-					size, to_va, &clen);
-	kunmap_atomic(to_va);
-	BUG_ON(ret != LZO_E_OK);
-	BUG_ON(clen != PAGE_SIZE);
-}
-
-static void zv_copy_from_pampd(char *data, size_t *bufsize, struct zv_hdr *zv)
-{
-	unsigned size;
-
-	ASSERT_SENTINEL(zv, ZVH);
-	size = xv_get_object_size(zv) - sizeof(*zv);
-	BUG_ON(size == 0 || size > zv_max_page_size);
-	BUG_ON(size > *bufsize);
-	memcpy(data, (char *)zv + sizeof(*zv), size);
-	*bufsize = size;
-}
-
-static void zv_copy_to_pampd(struct zv_hdr *zv, char *data, size_t size)
-{
-	unsigned zv_size;
-
-	ASSERT_SENTINEL(zv, ZVH);
-	zv_size = xv_get_object_size(zv) - sizeof(*zv);
-	BUG_ON(zv_size != size);
-	BUG_ON(zv_size == 0 || zv_size > zv_max_page_size);
-	memcpy((char *)zv + sizeof(*zv), data, size);
-}
-
-#ifdef CONFIG_SYSFS
 /*
- * show a distribution of compression stats for zv pages.
+ * for now, used named slabs so can easily track usage; later can
+ * either just use kmalloc, or perhaps add a slab-like allocator
+ * to more carefully manage total memory utilization
  */
+static struct kmem_cache *zcache_objnode_cache;
+static struct kmem_cache *zcache_obj_cache;
 
-static int zv_curr_dist_counts_show(char *buf)
-{
-	unsigned long i, n, chunks = 0, sum_total_chunks = 0;
-	char *p = buf;
-
-	for (i = 0; i < NCHUNKS; i++) {
-		n = atomic_read(&zv_curr_dist_counts[i]);
-		p += sprintf(p, "%lu ", n);
-		chunks += n;
-		sum_total_chunks += i * n;
-	}
-	p += sprintf(p, "mean:%lu\n",
-		chunks == 0 ? 0 : sum_total_chunks / chunks);
-	return p - buf;
-}
-
-static int zv_cumul_dist_counts_show(char *buf)
-{
-	unsigned long i, n, chunks = 0, sum_total_chunks = 0;
-	char *p = buf;
-
-	for (i = 0; i < NCHUNKS; i++) {
-		n = atomic_read(&zv_cumul_dist_counts[i]);
-		p += sprintf(p, "%lu ", n);
-		chunks += n;
-		sum_total_chunks += i * n;
-	}
-	p += sprintf(p, "mean:%lu\n",
-		chunks == 0 ? 0 : sum_total_chunks / chunks);
-	return p - buf;
-}
+static DEFINE_PER_CPU(struct zcache_preload, zcache_preloads) = { 0, };
 
-/*
- * setting zv_max_zsize via sysfs causes all persistent (e.g. swap)
- * pages that don't compress to less than this value (including metadata
- * overhead) to be rejected.  We don't allow the value to get too close
- * to PAGE_SIZE.
- */
-static ssize_t zv_max_zsize_show(struct kobject *kobj,
-				    struct kobj_attribute *attr,
-				    char *buf)
-{
-	return sprintf(buf, "%u\n", zv_max_zsize);
+/* we try to keep these statistics SMP-consistent */
+static long zcache_obj_count;
+static atomic_t zcache_obj_atomic = ATOMIC_INIT(0);
+static long zcache_obj_count_max;
+static long zcache_objnode_count;
+static atomic_t zcache_objnode_atomic = ATOMIC_INIT(0);
+static long zcache_objnode_count_max;
+static u64 zcache_eph_zbytes;
+static atomic_long_t zcache_eph_zbytes_atomic = ATOMIC_INIT(0);
+static u64 zcache_eph_zbytes_max;
+static u64 zcache_pers_zbytes;
+static atomic_long_t zcache_pers_zbytes_atomic = ATOMIC_INIT(0);
+static u64 zcache_pers_zbytes_max;
+static long zcache_eph_pageframes;
+static atomic_t zcache_eph_pageframes_atomic = ATOMIC_INIT(0);
+static long zcache_eph_pageframes_max;
+static long zcache_pers_pageframes;
+static atomic_t zcache_pers_pageframes_atomic = ATOMIC_INIT(0);
+static long zcache_pers_pageframes_max;
+static long zcache_pageframes_alloced;
+static atomic_t zcache_pageframes_alloced_atomic = ATOMIC_INIT(0);
+static long zcache_pageframes_freed;
+static atomic_t zcache_pageframes_freed_atomic = ATOMIC_INIT(0);
+static long zcache_eph_zpages;
+static atomic_t zcache_eph_zpages_atomic = ATOMIC_INIT(0);
+static long zcache_eph_zpages_max;
+static long zcache_pers_zpages;
+static atomic_t zcache_pers_zpages_atomic = ATOMIC_INIT(0);
+static long zcache_pers_zpages_max;
+
+/* but for the rest of these, counting races are ok */
+static unsigned long zcache_flush_total;
+static unsigned long zcache_flush_found;
+static unsigned long zcache_flobj_total;
+static unsigned long zcache_flobj_found;
+static unsigned long zcache_failed_eph_puts;
+static unsigned long zcache_failed_pers_puts;
+static unsigned long zcache_failed_getfreepages;
+static unsigned long zcache_failed_alloc;
+static unsigned long zcache_put_to_flush;
+static unsigned long zcache_compress_poor;
+static unsigned long zcache_mean_compress_poor;
+static unsigned long zcache_eph_ate_tail;
+static unsigned long zcache_eph_ate_tail_failed;
+static unsigned long zcache_pers_ate_eph;
+static unsigned long zcache_pers_ate_eph_failed;
+static unsigned long zcache_evicted_eph_zpages;
+static unsigned long zcache_evicted_eph_pageframes;
+static unsigned long zcache_last_active_file_pageframes;
+static unsigned long zcache_last_inactive_file_pageframes;
+static unsigned long zcache_last_active_anon_pageframes;
+static unsigned long zcache_last_inactive_anon_pageframes;
+static unsigned long zcache_eph_nonactive_puts_ignored;
+static unsigned long zcache_pers_nonactive_puts_ignored;
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#define	zdfs	debugfs_create_size_t
+#define	zdfs64	debugfs_create_u64
+static int zcache_debugfs_init(void)
+{
+	struct dentry *root = debugfs_create_dir("zcache", NULL);
+	if (root == NULL)
+		return -ENXIO;
+
+	zdfs("obj_count", S_IRUGO, root, &zcache_obj_count);
+	zdfs("obj_count_max", S_IRUGO, root, &zcache_obj_count_max);
+	zdfs("objnode_count", S_IRUGO, root, &zcache_objnode_count);
+	zdfs("objnode_count_max", S_IRUGO, root, &zcache_objnode_count_max);
+	zdfs("flush_total", S_IRUGO, root, &zcache_flush_total);
+	zdfs("flush_found", S_IRUGO, root, &zcache_flush_found);
+	zdfs("flobj_total", S_IRUGO, root, &zcache_flobj_total);
+	zdfs("flobj_found", S_IRUGO, root, &zcache_flobj_found);
+	zdfs("failed_eph_puts", S_IRUGO, root, &zcache_failed_eph_puts);
+	zdfs("failed_pers_puts", S_IRUGO, root, &zcache_failed_pers_puts);
+	zdfs("failed_get_free_pages", S_IRUGO, root,
+				&zcache_failed_getfreepages);
+	zdfs("failed_alloc", S_IRUGO, root, &zcache_failed_alloc);
+	zdfs("put_to_flush", S_IRUGO, root, &zcache_put_to_flush);
+	zdfs("compress_poor", S_IRUGO, root, &zcache_compress_poor);
+	zdfs("mean_compress_poor", S_IRUGO, root, &zcache_mean_compress_poor);
+	zdfs("eph_ate_tail", S_IRUGO, root, &zcache_eph_ate_tail);
+	zdfs("eph_ate_tail_failed", S_IRUGO, root, &zcache_eph_ate_tail_failed);
+	zdfs("pers_ate_eph", S_IRUGO, root, &zcache_pers_ate_eph);
+	zdfs("pers_ate_eph_failed", S_IRUGO, root, &zcache_pers_ate_eph_failed);
+	zdfs("evicted_eph_zpages", S_IRUGO, root, &zcache_evicted_eph_zpages);
+	zdfs("evicted_eph_pageframes", S_IRUGO, root,
+				&zcache_evicted_eph_pageframes);
+	zdfs("eph_pageframes", S_IRUGO, root, &zcache_eph_pageframes);
+	zdfs("eph_pageframes_max", S_IRUGO, root, &zcache_eph_pageframes_max);
+	zdfs("pers_pageframes", S_IRUGO, root, &zcache_pers_pageframes);
+	zdfs("pers_pageframes_max", S_IRUGO, root, &zcache_pers_pageframes_max);
+	zdfs("eph_zpages", S_IRUGO, root, &zcache_eph_zpages);
+	zdfs("eph_zpages_max", S_IRUGO, root, &zcache_eph_zpages_max);
+	zdfs("pers_zpages", S_IRUGO, root, &zcache_pers_zpages);
+	zdfs("pers_zpages_max", S_IRUGO, root, &zcache_pers_zpages_max);
+	zdfs("last_active_file_pageframes", S_IRUGO, root,
+				&zcache_last_active_file_pageframes);
+	zdfs("last_inactive_file_pageframes", S_IRUGO, root,
+				&zcache_last_inactive_file_pageframes);
+	zdfs("last_active_anon_pageframes", S_IRUGO, root,
+				&zcache_last_active_anon_pageframes);
+	zdfs("last_inactive_anon_pageframes", S_IRUGO, root,
+				&zcache_last_inactive_anon_pageframes);
+	zdfs("eph_nonactive_puts_ignored", S_IRUGO, root,
+				&zcache_eph_nonactive_puts_ignored);
+	zdfs("pers_nonactive_puts_ignored", S_IRUGO, root,
+				&zcache_pers_nonactive_puts_ignored);
+	zdfs64("eph_zbytes", S_IRUGO, root, &zcache_eph_zbytes);
+	zdfs64("eph_zbytes_max", S_IRUGO, root, &zcache_eph_zbytes_max);
+	zdfs64("pers_zbytes", S_IRUGO, root, &zcache_pers_zbytes);
+	zdfs64("pers_zbytes_max", S_IRUGO, root, &zcache_pers_zbytes_max);
+	return 0;
 }
+#undef	zdebugfs
+#undef	zdfs64
+#endif
 
-static ssize_t zv_max_zsize_store(struct kobject *kobj,
-				    struct kobj_attribute *attr,
-				    const char *buf, size_t count)
-{
-	unsigned long val;
-	int err;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	err = kstrtoul(buf, 10, &val);
-	if (err || (val == 0) || (val > (PAGE_SIZE / 8) * 7))
-		return -EINVAL;
-	zv_max_zsize = val;
-	return count;
+#define ZCACHE_DEBUG
+#ifdef ZCACHE_DEBUG
+/* developers can call this in case of ooms, e.g. to find memory leaks */
+void zcache_dump(void)
+{
+	pr_info("zcache: obj_count=%lu\n", zcache_obj_count);
+	pr_info("zcache: obj_count_max=%lu\n", zcache_obj_count_max);
+	pr_info("zcache: objnode_count=%lu\n", zcache_objnode_count);
+	pr_info("zcache: objnode_count_max=%lu\n", zcache_objnode_count_max);
+	pr_info("zcache: flush_total=%lu\n", zcache_flush_total);
+	pr_info("zcache: flush_found=%lu\n", zcache_flush_found);
+	pr_info("zcache: flobj_total=%lu\n", zcache_flobj_total);
+	pr_info("zcache: flobj_found=%lu\n", zcache_flobj_found);
+	pr_info("zcache: failed_eph_puts=%lu\n", zcache_failed_eph_puts);
+	pr_info("zcache: failed_pers_puts=%lu\n", zcache_failed_pers_puts);
+	pr_info("zcache: failed_get_free_pages=%lu\n",
+				zcache_failed_getfreepages);
+	pr_info("zcache: failed_alloc=%lu\n", zcache_failed_alloc);
+	pr_info("zcache: put_to_flush=%lu\n", zcache_put_to_flush);
+	pr_info("zcache: compress_poor=%lu\n", zcache_compress_poor);
+	pr_info("zcache: mean_compress_poor=%lu\n",
+				zcache_mean_compress_poor);
+	pr_info("zcache: eph_ate_tail=%lu\n", zcache_eph_ate_tail);
+	pr_info("zcache: eph_ate_tail_failed=%lu\n",
+				zcache_eph_ate_tail_failed);
+	pr_info("zcache: pers_ate_eph=%lu\n", zcache_pers_ate_eph);
+	pr_info("zcache: pers_ate_eph_failed=%lu\n",
+				zcache_pers_ate_eph_failed);
+	pr_info("zcache: evicted_eph_zpages=%lu\n", zcache_evicted_eph_zpages);
+	pr_info("zcache: evicted_eph_pageframes=%lu\n",
+				zcache_evicted_eph_pageframes);
+	pr_info("zcache: eph_pageframes=%lu\n", zcache_eph_pageframes);
+	pr_info("zcache: eph_pageframes_max=%lu\n", zcache_eph_pageframes_max);
+	pr_info("zcache: pers_pageframes=%lu\n", zcache_pers_pageframes);
+	pr_info("zcache: pers_pageframes_max=%lu\n",
+				zcache_pers_pageframes_max);
+	pr_info("zcache: eph_zpages=%lu\n", zcache_eph_zpages);
+	pr_info("zcache: eph_zpages_max=%lu\n", zcache_eph_zpages_max);
+	pr_info("zcache: pers_zpages=%lu\n", zcache_pers_zpages);
+	pr_info("zcache: pers_zpages_max=%lu\n", zcache_pers_zpages_max);
+	pr_info("zcache: eph_zbytes=%llu\n",
+				(unsigned long long)zcache_eph_zbytes);
+	pr_info("zcache: eph_zbytes_max=%llu\n",
+				(unsigned long long)zcache_eph_zbytes_max);
+	pr_info("zcache: pers_zbytes=%llu\n",
+				(unsigned long long)zcache_pers_zbytes);
+	pr_info("zcache: pers_zbytes_max=%llu\n",
+			(unsigned long long)zcache_pers_zbytes_max);
 }
+#endif
 
 /*
- * setting zv_max_mean_zsize via sysfs causes all persistent (e.g. swap)
- * pages that don't compress to less than this value (including metadata
- * overhead) to be rejected UNLESS the mean compression is also smaller
- * than this value.  In other words, we are load-balancing-by-zsize the
- * accepted pages.  Again, we don't allow the value to get too close
- * to PAGE_SIZE.
+ * zcache core code starts here
  */
-static ssize_t zv_max_mean_zsize_show(struct kobject *kobj,
-				    struct kobj_attribute *attr,
-				    char *buf)
-{
-	return sprintf(buf, "%u\n", zv_max_mean_zsize);
-}
-
-static ssize_t zv_max_mean_zsize_store(struct kobject *kobj,
-				    struct kobj_attribute *attr,
-				    const char *buf, size_t count)
-{
-	unsigned long val;
-	int err;
 
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	err = kstrtoul(buf, 10, &val);
-	if (err || (val == 0) || (val > (PAGE_SIZE / 8) * 7))
-		return -EINVAL;
-	zv_max_mean_zsize = val;
-	return count;
-}
+static struct zcache_client zcache_host;
+static struct zcache_client zcache_clients[MAX_CLIENTS];
 
-/*
- * setting zv_page_count_policy_percent via sysfs sets an upper bound of
- * persistent (e.g. swap) pages that will be retained according to:
- *     (zv_page_count_policy_percent * totalram_pages) / 100)
- * when that limit is reached, further puts will be rejected (until
- * some pages have been flushed).  Note that, due to compression,
- * this number may exceed 100; it defaults to 75 and we set an
- * arbitrary limit of 150.  A poor choice will almost certainly result
- * in OOM's, so this value should only be changed prudently.
- */
-static ssize_t zv_page_count_policy_percent_show(struct kobject *kobj,
-						 struct kobj_attribute *attr,
-						 char *buf)
+static inline bool is_local_client(struct zcache_client *cli)
 {
-	return sprintf(buf, "%u\n", zv_page_count_policy_percent);
+	return cli == &zcache_host;
 }
 
-static ssize_t zv_page_count_policy_percent_store(struct kobject *kobj,
-						  struct kobj_attribute *attr,
-						  const char *buf, size_t count)
+static struct zcache_client *zcache_get_client_by_id(uint16_t cli_id)
 {
-	unsigned long val;
-	int err;
+	struct zcache_client *cli = &zcache_host;
 
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	err = kstrtoul(buf, 10, &val);
-	if (err || (val == 0) || (val > 150))
-		return -EINVAL;
-	zv_page_count_policy_percent = val;
-	return count;
+	if (cli_id != LOCAL_CLIENT) {
+		if (cli_id >= MAX_CLIENTS)
+			goto out;
+		cli = &zcache_clients[cli_id];
+	}
+out:
+	return cli;
 }
 
-static struct kobj_attribute zcache_zv_max_zsize_attr = {
-		.attr = { .name = "zv_max_zsize", .mode = 0644 },
-		.show = zv_max_zsize_show,
-		.store = zv_max_zsize_store,
-};
-
-static struct kobj_attribute zcache_zv_max_mean_zsize_attr = {
-		.attr = { .name = "zv_max_mean_zsize", .mode = 0644 },
-		.show = zv_max_mean_zsize_show,
-		.store = zv_max_mean_zsize_store,
-};
-
-static struct kobj_attribute zcache_zv_page_count_policy_percent_attr = {
-		.attr = { .name = "zv_page_count_policy_percent",
-			  .mode = 0644 },
-		.show = zv_page_count_policy_percent_show,
-		.store = zv_page_count_policy_percent_store,
-};
-#endif
-
-/*
- * zcache core code starts here
- */
-
-/* useful stats not collected by cleancache or frontswap */
-static unsigned long zcache_flush_total;
-static unsigned long zcache_flush_found;
-static unsigned long zcache_flobj_total;
-static unsigned long zcache_flobj_found;
-static unsigned long zcache_failed_eph_puts;
-static unsigned long zcache_nonactive_puts;
-static unsigned long zcache_failed_pers_puts;
-
 /*
  * Tmem operations assume the poolid implies the invoking client.
  * Zcache only has one client (the kernel itself): LOCAL_CLIENT.
@@ -1398,21 +328,16 @@ static unsigned long zcache_failed_pers_puts;
  * of zcache would have one client per guest and each client might
  * have a poolid==N.
  */
-static struct tmem_pool *zcache_get_pool_by_id(uint16_t cli_id, uint16_t poolid)
+struct tmem_pool *zcache_get_pool_by_id(uint16_t cli_id, uint16_t poolid)
 {
 	struct tmem_pool *pool = NULL;
 	struct zcache_client *cli = NULL;
 
-	if (cli_id == LOCAL_CLIENT)
-		cli = &zcache_host;
-	else {
-		if (cli_id >= MAX_CLIENTS)
-			goto out;
-		cli = &zcache_clients[cli_id];
-		if (cli == NULL)
-			goto out;
+	cli = zcache_get_client_by_id(cli_id);
+	if (cli == NULL)
+		goto out;
+	if (!is_local_client(cli))
 		atomic_inc(&cli->refcount);
-	}
 	if (poolid < MAX_POOLS_PER_CLIENT) {
 		pool = cli->tmem_pools[poolid];
 		if (pool != NULL)
@@ -1422,7 +347,7 @@ out:
 	return pool;
 }
 
-static void zcache_put_pool(struct tmem_pool *pool)
+void zcache_put_pool(struct tmem_pool *pool)
 {
 	struct zcache_client *cli = NULL;
 
@@ -1430,173 +355,26 @@ static void zcache_put_pool(struct tmem_pool *pool)
 		BUG();
 	cli = pool->client;
 	atomic_dec(&pool->refcount);
-	atomic_dec(&cli->refcount);
+	if (!is_local_client(cli))
+		atomic_dec(&cli->refcount);
 }
 
 int zcache_new_client(uint16_t cli_id)
 {
-	struct zcache_client *cli = NULL;
+	struct zcache_client *cli;
 	int ret = -1;
 
-	if (cli_id == LOCAL_CLIENT)
-		cli = &zcache_host;
-	else if ((unsigned int)cli_id < MAX_CLIENTS)
-		cli = &zcache_clients[cli_id];
+	cli = zcache_get_client_by_id(cli_id);
 	if (cli == NULL)
 		goto out;
 	if (cli->allocated)
 		goto out;
 	cli->allocated = 1;
-#ifdef CONFIG_FRONTSWAP
-	cli->xvpool = xv_create_pool();
-	if (cli->xvpool == NULL)
-		goto out;
-#endif
-	ret = 0;
-out:
-	return ret;
-}
-
-/* counters for debugging */
-static unsigned long zcache_failed_get_free_pages;
-static unsigned long zcache_failed_alloc;
-static unsigned long zcache_put_to_flush;
-
-/*
- * for now, used named slabs so can easily track usage; later can
- * either just use kmalloc, or perhaps add a slab-like allocator
- * to more carefully manage total memory utilization
- */
-static struct kmem_cache *zcache_objnode_cache;
-static struct kmem_cache *zcache_obj_cache;
-static struct kmem_cache *ramster_flnode_cache;
-static atomic_t zcache_curr_obj_count = ATOMIC_INIT(0);
-static unsigned long zcache_curr_obj_count_max;
-static atomic_t zcache_curr_objnode_count = ATOMIC_INIT(0);
-static unsigned long zcache_curr_objnode_count_max;
-
-/*
- * to avoid memory allocation recursion (e.g. due to direct reclaim), we
- * preload all necessary data structures so the hostops callbacks never
- * actually do a malloc
- */
-struct zcache_preload {
-	void *page;
-	struct tmem_obj *obj;
-	int nr;
-	struct tmem_objnode *objnodes[OBJNODE_TREE_MAX_PATH];
-	struct flushlist_node *flnode;
-};
-static DEFINE_PER_CPU(struct zcache_preload, zcache_preloads) = { 0, };
-
-static int zcache_do_preload(struct tmem_pool *pool)
-{
-	struct zcache_preload *kp;
-	struct tmem_objnode *objnode;
-	struct tmem_obj *obj;
-	struct flushlist_node *flnode;
-	void *page;
-	int ret = -ENOMEM;
-
-	if (unlikely(zcache_objnode_cache == NULL))
-		goto out;
-	if (unlikely(zcache_obj_cache == NULL))
-		goto out;
-	preempt_disable();
-	kp = &__get_cpu_var(zcache_preloads);
-	while (kp->nr < ARRAY_SIZE(kp->objnodes)) {
-		preempt_enable_no_resched();
-		objnode = kmem_cache_alloc(zcache_objnode_cache,
-				ZCACHE_GFP_MASK);
-		if (unlikely(objnode == NULL)) {
-			zcache_failed_alloc++;
-			goto out;
-		}
-		preempt_disable();
-		kp = &__get_cpu_var(zcache_preloads);
-		if (kp->nr < ARRAY_SIZE(kp->objnodes))
-			kp->objnodes[kp->nr++] = objnode;
-		else
-			kmem_cache_free(zcache_objnode_cache, objnode);
-	}
-	preempt_enable_no_resched();
-	obj = kmem_cache_alloc(zcache_obj_cache, ZCACHE_GFP_MASK);
-	if (unlikely(obj == NULL)) {
-		zcache_failed_alloc++;
-		goto out;
-	}
-	flnode = kmem_cache_alloc(ramster_flnode_cache, ZCACHE_GFP_MASK);
-	if (unlikely(flnode == NULL)) {
-		zcache_failed_alloc++;
-		goto out;
-	}
-	if (is_ephemeral(pool)) {
-		page = (void *)__get_free_page(ZCACHE_GFP_MASK);
-		if (unlikely(page == NULL)) {
-			zcache_failed_get_free_pages++;
-			kmem_cache_free(zcache_obj_cache, obj);
-			kmem_cache_free(ramster_flnode_cache, flnode);
-			goto out;
-		}
-	}
-	preempt_disable();
-	kp = &__get_cpu_var(zcache_preloads);
-	if (kp->obj == NULL)
-		kp->obj = obj;
-	else
-		kmem_cache_free(zcache_obj_cache, obj);
-	if (kp->flnode == NULL)
-		kp->flnode = flnode;
-	else
-		kmem_cache_free(ramster_flnode_cache, flnode);
-	if (is_ephemeral(pool)) {
-		if (kp->page == NULL)
-			kp->page = page;
-		else
-			free_page((unsigned long)page);
-	}
 	ret = 0;
 out:
 	return ret;
 }
 
-static int ramster_do_preload_flnode_only(struct tmem_pool *pool)
-{
-	struct zcache_preload *kp;
-	struct flushlist_node *flnode;
-	int ret = -ENOMEM;
-
-	BUG_ON(!irqs_disabled());
-	if (unlikely(ramster_flnode_cache == NULL))
-		BUG();
-	kp = &__get_cpu_var(zcache_preloads);
-	flnode = kmem_cache_alloc(ramster_flnode_cache, GFP_ATOMIC);
-	if (unlikely(flnode == NULL) && kp->flnode == NULL)
-		BUG();  /* FIXME handle more gracefully, but how??? */
-	else if (kp->flnode == NULL)
-		kp->flnode = flnode;
-	else
-		kmem_cache_free(ramster_flnode_cache, flnode);
-	return ret;
-}
-
-static void *zcache_get_free_page(void)
-{
-	struct zcache_preload *kp;
-	void *page;
-
-	kp = &__get_cpu_var(zcache_preloads);
-	page = kp->page;
-	BUG_ON(page == NULL);
-	kp->page = NULL;
-	return page;
-}
-
-static void zcache_free_page(void *p)
-{
-	free_page((unsigned long)p);
-}
-
 /*
  * zcache implementation for tmem host ops
  */
@@ -1604,78 +382,56 @@ static void zcache_free_page(void *p)
 static struct tmem_objnode *zcache_objnode_alloc(struct tmem_pool *pool)
 {
 	struct tmem_objnode *objnode = NULL;
-	unsigned long count;
 	struct zcache_preload *kp;
+	int i;
 
 	kp = &__get_cpu_var(zcache_preloads);
-	if (kp->nr <= 0)
-		goto out;
-	objnode = kp->objnodes[kp->nr - 1];
+	for (i = 0; i < ARRAY_SIZE(kp->objnodes); i++) {
+		objnode = kp->objnodes[i];
+		if (objnode != NULL) {
+			kp->objnodes[i] = NULL;
+			break;
+		}
+	}
 	BUG_ON(objnode == NULL);
-	kp->objnodes[kp->nr - 1] = NULL;
-	kp->nr--;
-	count = atomic_inc_return(&zcache_curr_objnode_count);
-	if (count > zcache_curr_objnode_count_max)
-		zcache_curr_objnode_count_max = count;
-out:
+	zcache_objnode_count = atomic_inc_return(&zcache_objnode_atomic);
+	if (zcache_objnode_count > zcache_objnode_count_max)
+		zcache_objnode_count_max = zcache_objnode_count;
 	return objnode;
 }
 
 static void zcache_objnode_free(struct tmem_objnode *objnode,
 					struct tmem_pool *pool)
 {
-	atomic_dec(&zcache_curr_objnode_count);
-	BUG_ON(atomic_read(&zcache_curr_objnode_count) < 0);
+	zcache_objnode_count =
+		atomic_dec_return(&zcache_objnode_atomic);
+	BUG_ON(zcache_objnode_count < 0);
 	kmem_cache_free(zcache_objnode_cache, objnode);
 }
 
 static struct tmem_obj *zcache_obj_alloc(struct tmem_pool *pool)
 {
 	struct tmem_obj *obj = NULL;
-	unsigned long count;
 	struct zcache_preload *kp;
 
 	kp = &__get_cpu_var(zcache_preloads);
 	obj = kp->obj;
 	BUG_ON(obj == NULL);
 	kp->obj = NULL;
-	count = atomic_inc_return(&zcache_curr_obj_count);
-	if (count > zcache_curr_obj_count_max)
-		zcache_curr_obj_count_max = count;
+	zcache_obj_count = atomic_inc_return(&zcache_obj_atomic);
+	if (zcache_obj_count > zcache_obj_count_max)
+		zcache_obj_count_max = zcache_obj_count;
 	return obj;
 }
 
 static void zcache_obj_free(struct tmem_obj *obj, struct tmem_pool *pool)
 {
-	atomic_dec(&zcache_curr_obj_count);
-	BUG_ON(atomic_read(&zcache_curr_obj_count) < 0);
+	zcache_obj_count =
+		atomic_dec_return(&zcache_obj_atomic);
+	BUG_ON(zcache_obj_count < 0);
 	kmem_cache_free(zcache_obj_cache, obj);
 }
 
-static struct flushlist_node *ramster_flnode_alloc(struct tmem_pool *pool)
-{
-	struct flushlist_node *flnode = NULL;
-	struct zcache_preload *kp;
-	int count;
-
-	kp = &__get_cpu_var(zcache_preloads);
-	flnode = kp->flnode;
-	BUG_ON(flnode == NULL);
-	kp->flnode = NULL;
-	count = atomic_inc_return(&ramster_curr_flnode_count);
-	if (count > ramster_curr_flnode_count_max)
-		ramster_curr_flnode_count_max = count;
-	return flnode;
-}
-
-static void ramster_flnode_free(struct flushlist_node *flnode,
-				struct tmem_pool *pool)
-{
-	atomic_dec(&ramster_curr_flnode_count);
-	BUG_ON(atomic_read(&ramster_curr_flnode_count) < 0);
-	kmem_cache_free(ramster_flnode_cache, flnode);
-}
-
 static struct tmem_hostops zcache_hostops = {
 	.obj_alloc = zcache_obj_alloc,
 	.obj_free = zcache_obj_free,
@@ -1683,220 +439,363 @@ static struct tmem_hostops zcache_hostops = {
 	.objnode_free = zcache_objnode_free,
 };
 
-/*
- * zcache implementations for PAM page descriptor ops
- */
+static struct page *zcache_alloc_page(void)
+{
+	struct page *page = alloc_page(ZCACHE_GFP_MASK);
 
+	if (page != NULL)
+		zcache_pageframes_alloced =
+			atomic_inc_return(&zcache_pageframes_alloced_atomic);
+	return page;
+}
 
-static inline void dec_and_check(atomic_t *pvar)
+#ifdef FRONTSWAP_HAS_UNUSE
+static void zcache_unacct_page(void)
 {
-	atomic_dec(pvar);
-	/* later when all accounting is fixed, make this a BUG */
-	WARN_ON_ONCE(atomic_read(pvar) < 0);
+	zcache_pageframes_freed =
+		atomic_inc_return(&zcache_pageframes_freed_atomic);
 }
+#endif
+
+static void zcache_free_page(struct page *page)
+{
+	long curr_pageframes;
+	static long max_pageframes, min_pageframes;
 
-static atomic_t zcache_curr_eph_pampd_count = ATOMIC_INIT(0);
-static unsigned long zcache_curr_eph_pampd_count_max;
-static atomic_t zcache_curr_pers_pampd_count = ATOMIC_INIT(0);
-static unsigned long zcache_curr_pers_pampd_count_max;
+	if (page == NULL)
+		BUG();
+	__free_page(page);
+	zcache_pageframes_freed =
+		atomic_inc_return(&zcache_pageframes_freed_atomic);
+	curr_pageframes = zcache_pageframes_alloced -
+			atomic_read(&zcache_pageframes_freed_atomic) -
+			atomic_read(&zcache_eph_pageframes_atomic) -
+			atomic_read(&zcache_pers_pageframes_atomic);
+	if (curr_pageframes > max_pageframes)
+		max_pageframes = curr_pageframes;
+	if (curr_pageframes < min_pageframes)
+		min_pageframes = curr_pageframes;
+#ifdef ZCACHE_DEBUG
+	if (curr_pageframes > 2L || curr_pageframes < -2L) {
+		/* pr_info here */
+	}
+#endif
+}
+
+/*
+ * zcache implementations for PAM page descriptor ops
+ */
 
 /* forward reference */
-static int zcache_compress(struct page *from, void **out_va, size_t *out_len);
+static void zcache_compress(struct page *from,
+				void **out_va, unsigned *out_len);
 
-static int zcache_pampd_eph_create(char *data, size_t size, bool raw,
-				struct tmem_pool *pool, struct tmem_oid *oid,
-				uint32_t index, void **pampd)
+static struct page *zcache_evict_eph_pageframe(void);
+
+static void *zcache_pampd_eph_create(char *data, size_t size, bool raw,
+					struct tmem_handle *th)
 {
-	int ret = -1;
-	void *cdata = data;
-	size_t clen = size;
-	struct zcache_client *cli = pool->client;
-	uint16_t client_id = get_client_id_from_client(cli);
-	struct page *page = NULL;
-	unsigned long count;
+	void *pampd = NULL, *cdata = data;
+	unsigned clen = size;
+	struct page *page = (struct page *)(data), *newpage;
 
 	if (!raw) {
-		page = virt_to_page(data);
-		ret = zcache_compress(page, &cdata, &clen);
-		if (ret == 0)
-			goto out;
-		if (clen == 0 || clen > zbud_max_buddy_size()) {
+		zcache_compress(page, &cdata, &clen);
+		if (clen > zbud_max_buddy_size()) {
 			zcache_compress_poor++;
 			goto out;
 		}
+	} else {
+		BUG_ON(clen > zbud_max_buddy_size());
 	}
-	*pampd = (void *)zbud_create(client_id, pool->pool_id, oid,
-					index, page, cdata, clen);
-	if (*pampd == NULL) {
-		ret = -ENOMEM;
+
+	/* look for space via an existing match first */
+	pampd = (void *)zbud_match_prep(th, true, cdata, clen);
+	if (pampd != NULL)
+		goto got_pampd;
+
+	/* no match, now we need to find (or free up) a full page */
+	newpage = zcache_alloc_page();
+	if (newpage != NULL)
+		goto create_in_new_page;
+
+	zcache_failed_getfreepages++;
+	/* can't allocate a page, evict an ephemeral page via LRU */
+	newpage = zcache_evict_eph_pageframe();
+	if (newpage == NULL) {
+		zcache_eph_ate_tail_failed++;
 		goto out;
 	}
-	ret = 0;
-	count = atomic_inc_return(&zcache_curr_eph_pampd_count);
-	if (count > zcache_curr_eph_pampd_count_max)
-		zcache_curr_eph_pampd_count_max = count;
-	if (client_id != LOCAL_CLIENT) {
-		count = atomic_inc_return(&ramster_foreign_eph_pampd_count);
-		if (count > ramster_foreign_eph_pampd_count_max)
-			ramster_foreign_eph_pampd_count_max = count;
-	}
+	zcache_eph_ate_tail++;
+
+create_in_new_page:
+	pampd = (void *)zbud_create_prep(th, true, cdata, clen, newpage);
+	BUG_ON(pampd == NULL);
+	zcache_eph_pageframes =
+		atomic_inc_return(&zcache_eph_pageframes_atomic);
+	if (zcache_eph_pageframes > zcache_eph_pageframes_max)
+		zcache_eph_pageframes_max = zcache_eph_pageframes;
+
+got_pampd:
+	zcache_eph_zbytes =
+		atomic_long_add_return(clen, &zcache_eph_zbytes_atomic);
+	if (zcache_eph_zbytes > zcache_eph_zbytes_max)
+		zcache_eph_zbytes_max = zcache_eph_zbytes;
+	zcache_eph_zpages = atomic_inc_return(&zcache_eph_zpages_atomic);
+	if (zcache_eph_zpages > zcache_eph_zpages_max)
+		zcache_eph_zpages_max = zcache_eph_zpages;
+	if (ramster_enabled && raw)
+		ramster_count_foreign_pages(true, 1);
 out:
-	return ret;
+	return pampd;
 }
 
-static int zcache_pampd_pers_create(char *data, size_t size, bool raw,
-				struct tmem_pool *pool, struct tmem_oid *oid,
-				uint32_t index, void **pampd)
+static void *zcache_pampd_pers_create(char *data, size_t size, bool raw,
+					struct tmem_handle *th)
 {
-	int ret = -1;
-	void *cdata = data;
-	size_t clen = size;
-	struct zcache_client *cli = pool->client;
-	struct page *page;
-	unsigned long count;
-	unsigned long zv_mean_zsize;
-	struct zv_hdr *zv;
-	long curr_pers_pampd_count;
-	u64 total_zsize;
-#ifdef RAMSTER_TESTING
-	static bool pampd_neg_warned;
-#endif
+	void *pampd = NULL, *cdata = data;
+	unsigned clen = size;
+	struct page *page = (struct page *)(data), *newpage;
+	unsigned long zbud_mean_zsize;
+	unsigned long curr_pers_zpages, total_zsize;
 
-	curr_pers_pampd_count = atomic_read(&zcache_curr_pers_pampd_count) -
-			atomic_read(&ramster_remote_pers_pages);
-#ifdef RAMSTER_TESTING
-	/* should always be positive, but warn if accounting is off */
-	if (!pampd_neg_warned) {
-		pr_warn("ramster: bad accounting for curr_pers_pampd_count\n");
-		pampd_neg_warned = true;
+	if (data == NULL) {
+		BUG_ON(!ramster_enabled);
+		goto create_pampd;
 	}
-#endif
-	if (curr_pers_pampd_count >
-		    (zv_page_count_policy_percent * totalram_pages) / 100) {
-		zcache_policy_percent_exceeded++;
-		goto out;
-	}
-	if (raw)
-		goto ok_to_create;
-	page = virt_to_page(data);
-	if (zcache_compress(page, &cdata, &clen) == 0)
-		goto out;
+	curr_pers_zpages = zcache_pers_zpages;
+/* FIXME CONFIG_RAMSTER... subtract atomic remote_pers_pages here? */
+	if (!raw)
+		zcache_compress(page, &cdata, &clen);
 	/* reject if compression is too poor */
-	if (clen > zv_max_zsize) {
+	if (clen > zbud_max_zsize) {
 		zcache_compress_poor++;
 		goto out;
 	}
 	/* reject if mean compression is too poor */
-	if ((clen > zv_max_mean_zsize) && (curr_pers_pampd_count > 0)) {
-		total_zsize = xv_get_total_size_bytes(cli->xvpool);
-		zv_mean_zsize = div_u64(total_zsize, curr_pers_pampd_count);
-		if (zv_mean_zsize > zv_max_mean_zsize) {
+	if ((clen > zbud_max_mean_zsize) && (curr_pers_zpages > 0)) {
+		total_zsize = zcache_pers_zbytes;
+		if ((long)total_zsize < 0)
+			total_zsize = 0;
+		zbud_mean_zsize = div_u64(total_zsize,
+					curr_pers_zpages);
+		if (zbud_mean_zsize > zbud_max_mean_zsize) {
 			zcache_mean_compress_poor++;
 			goto out;
 		}
 	}
-ok_to_create:
-	*pampd = (void *)zv_create(cli, pool->pool_id, oid, index, cdata, clen);
-	if (*pampd == NULL) {
-		ret = -ENOMEM;
+
+create_pampd:
+	/* look for space via an existing match first */
+	pampd = (void *)zbud_match_prep(th, false, cdata, clen);
+	if (pampd != NULL)
+		goto got_pampd;
+
+	/* no match, now we need to find (or free up) a full page */
+	newpage = zcache_alloc_page();
+	if (newpage != NULL)
+		goto create_in_new_page;
+	/*
+	 * FIXME do the following only if eph is oversized?
+	 * if (zcache_eph_pageframes >
+	 * (global_page_state(NR_LRU_BASE + LRU_ACTIVE_FILE) +
+	 * global_page_state(NR_LRU_BASE + LRU_INACTIVE_FILE)))
+	 */
+	zcache_failed_getfreepages++;
+	/* can't allocate a page, evict an ephemeral page via LRU */
+	newpage = zcache_evict_eph_pageframe();
+	if (newpage == NULL) {
+		zcache_pers_ate_eph_failed++;
 		goto out;
 	}
-	ret = 0;
-	count = atomic_inc_return(&zcache_curr_pers_pampd_count);
-	if (count > zcache_curr_pers_pampd_count_max)
-		zcache_curr_pers_pampd_count_max = count;
-	if (is_local_client(cli))
-		goto out;
-	zv = *(struct zv_hdr **)pampd;
-	count = atomic_inc_return(&ramster_foreign_pers_pampd_count);
-	if (count > ramster_foreign_pers_pampd_count_max)
-		ramster_foreign_pers_pampd_count_max = count;
+	zcache_pers_ate_eph++;
+
+create_in_new_page:
+	pampd = (void *)zbud_create_prep(th, false, cdata, clen, newpage);
+	BUG_ON(pampd == NULL);
+	zcache_pers_pageframes =
+		atomic_inc_return(&zcache_pers_pageframes_atomic);
+	if (zcache_pers_pageframes > zcache_pers_pageframes_max)
+		zcache_pers_pageframes_max = zcache_pers_pageframes;
+
+got_pampd:
+	zcache_pers_zpages = atomic_inc_return(&zcache_pers_zpages_atomic);
+	if (zcache_pers_zpages > zcache_pers_zpages_max)
+		zcache_pers_zpages_max = zcache_pers_zpages;
+	zcache_pers_zbytes =
+		atomic_long_add_return(clen, &zcache_pers_zbytes_atomic);
+	if (zcache_pers_zbytes > zcache_pers_zbytes_max)
+		zcache_pers_zbytes_max = zcache_pers_zbytes;
+	if (ramster_enabled && raw)
+		ramster_count_foreign_pages(false, 1);
 out:
-	return ret;
+	return pampd;
 }
 
-static void *zcache_pampd_create(char *data, size_t size, bool raw, int eph,
-				struct tmem_pool *pool, struct tmem_oid *oid,
-				uint32_t index)
+/*
+ * This is called directly from zcache_put_page to pre-allocate space
+ * to store a zpage.
+ */
+void *zcache_pampd_create(char *data, unsigned int size, bool raw,
+					int eph, struct tmem_handle *th)
 {
 	void *pampd = NULL;
-	int ret;
-	bool ephemeral;
+	struct zcache_preload *kp;
+	struct tmem_objnode *objnode;
+	struct tmem_obj *obj;
+	int i;
 
-	BUG_ON(preemptible());
-	ephemeral = (eph == 1) || ((eph == 0) && is_ephemeral(pool));
-	if (ephemeral)
-		ret = zcache_pampd_eph_create(data, size, raw, pool,
-						oid, index, &pampd);
+	BUG_ON(!irqs_disabled());
+	/* pre-allocate per-cpu metadata */
+	BUG_ON(zcache_objnode_cache == NULL);
+	BUG_ON(zcache_obj_cache == NULL);
+	kp = &__get_cpu_var(zcache_preloads);
+	for (i = 0; i < ARRAY_SIZE(kp->objnodes); i++) {
+		objnode = kp->objnodes[i];
+		if (objnode == NULL) {
+			objnode = kmem_cache_alloc(zcache_objnode_cache,
+							ZCACHE_GFP_MASK);
+			if (unlikely(objnode == NULL)) {
+				zcache_failed_alloc++;
+				goto out;
+			}
+			kp->objnodes[i] = objnode;
+		}
+	}
+	if (kp->obj == NULL) {
+		obj = kmem_cache_alloc(zcache_obj_cache, ZCACHE_GFP_MASK);
+		kp->obj = obj;
+	}
+	if (unlikely(kp->obj == NULL)) {
+		zcache_failed_alloc++;
+		goto out;
+	}
+	/*
+	 * ok, have all the metadata pre-allocated, now do the data
+	 * but since how we allocate the data is dependent on ephemeral
+	 * or persistent, we split the call here to different sub-functions
+	 */
+	if (eph)
+		pampd = zcache_pampd_eph_create(data, size, raw, th);
 	else
-		ret = zcache_pampd_pers_create(data, size, raw, pool,
-						oid, index, &pampd);
-	/* FIXME add some counters here for failed creates? */
+		pampd = zcache_pampd_pers_create(data, size, raw, th);
+out:
 	return pampd;
 }
 
 /*
+ * This is a pamops called via tmem_put and is necessary to "finish"
+ * a pampd creation.
+ */
+void zcache_pampd_create_finish(void *pampd, bool eph)
+{
+	zbud_create_finish((struct zbudref *)pampd, eph);
+}
+
+/*
+ * This is passed as a function parameter to zbud_decompress so that
+ * zbud need not be familiar with the details of crypto. It assumes that
+ * the bytes from_va and to_va through from_va+size-1 and to_va+size-1 are
+ * kmapped.  It must be successful, else there is a logic bug somewhere.
+ */
+static void zcache_decompress(char *from_va, unsigned int size, char *to_va)
+{
+	int ret;
+	unsigned int outlen = PAGE_SIZE;
+
+	ret = zcache_comp_op(ZCACHE_COMPOP_DECOMPRESS, from_va, size,
+				to_va, &outlen);
+	BUG_ON(ret);
+	BUG_ON(outlen != PAGE_SIZE);
+}
+
+/*
+ * Decompress from the kernel va to a pageframe
+ */
+void zcache_decompress_to_page(char *from_va, unsigned int size,
+					struct page *to_page)
+{
+	char *to_va = kmap_atomic(to_page);
+	zcache_decompress(from_va, size, to_va);
+	kunmap_atomic(to_va);
+}
+
+/*
  * fill the pageframe corresponding to the struct page with the data
  * from the passed pampd
  */
-static int zcache_pampd_get_data(char *data, size_t *bufsize, bool raw,
+static int zcache_pampd_get_data(char *data, size_t *sizep, bool raw,
 					void *pampd, struct tmem_pool *pool,
 					struct tmem_oid *oid, uint32_t index)
 {
-	int ret = 0;
+	int ret;
+	bool eph = !is_persistent(pool);
 
 	BUG_ON(preemptible());
-	BUG_ON(is_ephemeral(pool)); /* Fix later for shared pools? */
+	BUG_ON(eph);	/* fix later if shared pools get implemented */
 	BUG_ON(pampd_is_remote(pampd));
 	if (raw)
-		zv_copy_from_pampd(data, bufsize, pampd);
-	else
-		zv_decompress(virt_to_page(data), pampd);
+		ret = zbud_copy_from_zbud(data, (struct zbudref *)pampd,
+						sizep, eph);
+	else {
+		ret = zbud_decompress((struct page *)(data),
+					(struct zbudref *)pampd, false,
+					zcache_decompress);
+		*sizep = PAGE_SIZE;
+	}
 	return ret;
 }
 
-static int zcache_pampd_get_data_and_free(char *data, size_t *bufsize, bool raw,
+/*
+ * fill the pageframe corresponding to the struct page with the data
+ * from the passed pampd
+ */
+static int zcache_pampd_get_data_and_free(char *data, size_t *sizep, bool raw,
 					void *pampd, struct tmem_pool *pool,
 					struct tmem_oid *oid, uint32_t index)
 {
-	int ret = 0;
-	unsigned long flags;
-	struct zcache_client *cli = pool->client;
+	int ret;
+	bool eph = !is_persistent(pool);
+	struct page *page = NULL;
+	unsigned int zsize, zpages;
 
 	BUG_ON(preemptible());
 	BUG_ON(pampd_is_remote(pampd));
-	if (is_ephemeral(pool)) {
-		local_irq_save(flags);
-		if (raw)
-			zbud_copy_from_pampd(data, bufsize, pampd);
-		else
-			ret = zbud_decompress(virt_to_page(data), pampd);
-		zbud_free_and_delist((struct zbud_hdr *)pampd);
-		local_irq_restore(flags);
-		if (!is_local_client(cli))
-			dec_and_check(&ramster_foreign_eph_pampd_count);
-		dec_and_check(&zcache_curr_eph_pampd_count);
+	if (raw)
+		ret = zbud_copy_from_zbud(data, (struct zbudref *)pampd,
+						sizep, eph);
+	else {
+		ret = zbud_decompress((struct page *)(data),
+					(struct zbudref *)pampd, eph,
+					zcache_decompress);
+		*sizep = PAGE_SIZE;
+	}
+	page = zbud_free_and_delist((struct zbudref *)pampd, eph,
+					&zsize, &zpages);
+	if (eph) {
+		if (page)
+			zcache_eph_pageframes =
+			    atomic_dec_return(&zcache_eph_pageframes_atomic);
+		zcache_eph_zpages =
+		    atomic_sub_return(zpages, &zcache_eph_zpages_atomic);
+		zcache_eph_zbytes =
+		    atomic_long_sub_return(zsize, &zcache_eph_zbytes_atomic);
 	} else {
-		if (is_local_client(cli))
-			BUG();
-		if (raw)
-			zv_copy_from_pampd(data, bufsize, pampd);
-		else
-			zv_decompress(virt_to_page(data), pampd);
-		zv_free(cli->xvpool, pampd);
-		if (!is_local_client(cli))
-			dec_and_check(&ramster_foreign_pers_pampd_count);
-		dec_and_check(&zcache_curr_pers_pampd_count);
-		ret = 0;
-	}
+		if (page)
+			zcache_pers_pageframes =
+			    atomic_dec_return(&zcache_pers_pageframes_atomic);
+		zcache_pers_zpages =
+		    atomic_sub_return(zpages, &zcache_pers_zpages_atomic);
+		zcache_pers_zbytes =
+		    atomic_long_sub_return(zsize, &zcache_pers_zbytes_atomic);
+	}
+	if (!is_local_client(pool->client))
+		ramster_count_foreign_pages(eph, -1);
+	if (page)
+		zcache_free_page(page);
 	return ret;
 }
 
-static bool zcache_pampd_is_remote(void *pampd)
-{
-	return pampd_is_remote(pampd);
-}
-
 /*
  * free the pampd and remove it from any zcache lists
  * pampd must no longer be pointed to from any tmem data structures!
@@ -1904,362 +803,134 @@ static bool zcache_pampd_is_remote(void *pampd)
 static void zcache_pampd_free(void *pampd, struct tmem_pool *pool,
 			      struct tmem_oid *oid, uint32_t index, bool acct)
 {
-	struct zcache_client *cli = pool->client;
-	bool eph = is_ephemeral(pool);
-	struct zv_hdr *zv;
+	struct page *page = NULL;
+	unsigned int zsize, zpages;
 
 	BUG_ON(preemptible());
 	if (pampd_is_remote(pampd)) {
-		WARN_ON(acct == false);
-		if (oid == NULL) {
-			/*
-			 * a NULL oid means to ignore this pampd free
-			 * as the remote freeing will be handled elsewhere
-			 */
-		} else if (eph) {
-			/* FIXME remote flush optional but probably good idea */
-			/* FIXME get these working properly again */
-			dec_and_check(&zcache_curr_eph_pampd_count);
-		} else if (pampd_is_intransit(pampd)) {
-			/* did a pers remote get_and_free, so just free local */
-			pampd = pampd_mask_intransit_and_remote(pampd);
-			goto local_pers;
-		} else {
-			struct flushlist_node *flnode =
-				ramster_flnode_alloc(pool);
-
-			flnode->xh.client_id = pampd_remote_node(pampd);
-			flnode->xh.pool_id = pool->pool_id;
-			flnode->xh.oid = *oid;
-			flnode->xh.index = index;
-			flnode->rem_op.op = RAMSTER_REMOTIFY_FLUSH_PAGE;
-			spin_lock(&zcache_rem_op_list_lock);
-			list_add(&flnode->rem_op.list, &zcache_rem_op_list);
-			spin_unlock(&zcache_rem_op_list_lock);
-			dec_and_check(&zcache_curr_pers_pampd_count);
-			dec_and_check(&ramster_remote_pers_pages);
-		}
-	} else if (eph) {
-		zbud_free_and_delist((struct zbud_hdr *)pampd);
-		if (!is_local_client(pool->client))
-			dec_and_check(&ramster_foreign_eph_pampd_count);
-		if (acct)
-			/* FIXME get these working properly again */
-			dec_and_check(&zcache_curr_eph_pampd_count);
-	} else {
-local_pers:
-		zv = (struct zv_hdr *)pampd;
-		if (!is_local_client(pool->client))
-			dec_and_check(&ramster_foreign_pers_pampd_count);
-		zv_free(cli->xvpool, zv);
-		if (acct)
-			/* FIXME get these working properly again */
-			dec_and_check(&zcache_curr_pers_pampd_count);
+		BUG_ON(!ramster_enabled);
+		pampd = ramster_pampd_free(pampd, pool, oid, index, acct);
+		if (pampd == NULL)
+			return;
 	}
-}
-
-static void zcache_pampd_free_obj(struct tmem_pool *pool,
-					struct tmem_obj *obj)
-{
-	struct flushlist_node *flnode;
-
-	BUG_ON(preemptible());
-	if (obj->extra == NULL)
-		return;
-	BUG_ON(!pampd_is_remote(obj->extra));
-	flnode = ramster_flnode_alloc(pool);
-	flnode->xh.client_id = pampd_remote_node(obj->extra);
-	flnode->xh.pool_id = pool->pool_id;
-	flnode->xh.oid = obj->oid;
-	flnode->xh.index = FLUSH_ENTIRE_OBJECT;
-	flnode->rem_op.op = RAMSTER_REMOTIFY_FLUSH_OBJ;
-	spin_lock(&zcache_rem_op_list_lock);
-	list_add(&flnode->rem_op.list, &zcache_rem_op_list);
-	spin_unlock(&zcache_rem_op_list_lock);
-}
-
-void zcache_pampd_new_obj(struct tmem_obj *obj)
-{
-	obj->extra = NULL;
-}
-
-int zcache_pampd_replace_in_obj(void *new_pampd, struct tmem_obj *obj)
-{
-	int ret = -1;
-
-	if (new_pampd != NULL) {
-		if (obj->extra == NULL)
-			obj->extra = new_pampd;
-		/* enforce that all remote pages in an object reside
-		 * in the same node! */
-		else if (pampd_remote_node(new_pampd) !=
-				pampd_remote_node((void *)(obj->extra)))
-			BUG();
-		ret = 0;
-	}
-	return ret;
-}
-
-/*
- * Called by the message handler after a (still compressed) page has been
- * fetched from the remote machine in response to an "is_remote" tmem_get
- * or persistent tmem_localify.  For a tmem_get, "extra" is the address of
- * the page that is to be filled to successfully resolve the tmem_get; for
- * a (persistent) tmem_localify, "extra" is NULL (as the data is placed only
- * in the local zcache).  "data" points to "size" bytes of (compressed) data
- * passed in the message.  In the case of a persistent remote get, if
- * pre-allocation was successful (see zcache_repatriate_preload), the page
- * is placed into both local zcache and at "extra".
- */
-int zcache_localify(int pool_id, struct tmem_oid *oidp,
-			uint32_t index, char *data, size_t size,
-			void *extra)
-{
-	int ret = -ENOENT;
-	unsigned long flags;
-	struct tmem_pool *pool;
-	bool ephemeral, delete = false;
-	size_t clen = PAGE_SIZE;
-	void *pampd, *saved_hb;
-	struct tmem_obj *obj;
-
-	pool = zcache_get_pool_by_id(LOCAL_CLIENT, pool_id);
-	if (unlikely(pool == NULL))
-		/* pool doesn't exist anymore */
-		goto out;
-	ephemeral = is_ephemeral(pool);
-	local_irq_save(flags);  /* FIXME: maybe only disable softirqs? */
-	pampd = tmem_localify_get_pampd(pool, oidp, index, &obj, &saved_hb);
-	if (pampd == NULL) {
-		/* hmmm... must have been a flush while waiting */
-#ifdef RAMSTER_TESTING
-		pr_err("UNTESTED pampd==NULL in zcache_localify\n");
-#endif
-		if (ephemeral)
-			ramster_remote_eph_pages_unsucc_get++;
-		else
-			ramster_remote_pers_pages_unsucc_get++;
-		obj = NULL;
-		goto finish;
-	} else if (unlikely(!pampd_is_remote(pampd))) {
-		/* hmmm... must have been a dup put while waiting */
-#ifdef RAMSTER_TESTING
-		pr_err("UNTESTED dup while waiting in zcache_localify\n");
-#endif
-		if (ephemeral)
-			ramster_remote_eph_pages_unsucc_get++;
-		else
-			ramster_remote_pers_pages_unsucc_get++;
-		obj = NULL;
-		pampd = NULL;
-		ret = -EEXIST;
-		goto finish;
-	} else if (size == 0) {
-		/* no remote data, delete the local is_remote pampd */
-		pampd = NULL;
-		if (ephemeral)
-			ramster_remote_eph_pages_unsucc_get++;
-		else
-			BUG();
-		delete = true;
-		goto finish;
-	}
-	if (!ephemeral && pampd_is_intransit(pampd)) {
-		/* localify to zcache */
-		pampd = pampd_mask_intransit_and_remote(pampd);
-		zv_copy_to_pampd(pampd, data, size);
+	if (is_ephemeral(pool)) {
+		page = zbud_free_and_delist((struct zbudref *)pampd,
+						true, &zsize, &zpages);
+		if (page)
+			zcache_eph_pageframes =
+			    atomic_dec_return(&zcache_eph_pageframes_atomic);
+		zcache_eph_zpages =
+		    atomic_sub_return(zpages, &zcache_eph_zpages_atomic);
+		zcache_eph_zbytes =
+		    atomic_long_sub_return(zsize, &zcache_eph_zbytes_atomic);
+		/* FIXME CONFIG_RAMSTER... check acct parameter? */
 	} else {
-		pampd = NULL;
-		obj = NULL;
-	}
-	if (extra != NULL) {
-		/* decompress direct-to-memory to complete remotify */
-		ret = lzo1x_decompress_safe((char *)data, size,
-						(char *)extra, &clen);
-		BUG_ON(ret != LZO_E_OK);
-		BUG_ON(clen != PAGE_SIZE);
-	}
-	if (ephemeral)
-		ramster_remote_eph_pages_succ_get++;
-	else
-		ramster_remote_pers_pages_succ_get++;
-	ret = 0;
-finish:
-	tmem_localify_finish(obj, index, pampd, saved_hb, delete);
-	zcache_put_pool(pool);
-	local_irq_restore(flags);
-out:
-	return ret;
-}
-
-/*
- * Called on a remote persistent tmem_get to attempt to preallocate
- * local storage for the data contained in the remote persistent page.
- * If successfully preallocated, returns the pampd, marked as remote and
- * in_transit.  Else returns NULL.  Note that the appropriate tmem data
- * structure must be locked.
- */
-static void *zcache_pampd_repatriate_preload(void *pampd,
-						struct tmem_pool *pool,
-						struct tmem_oid *oid,
-						uint32_t index,
-						bool *intransit)
-{
-	int clen = pampd_remote_size(pampd);
-	void *ret_pampd = NULL;
-	unsigned long flags;
-
-	if (!pampd_is_remote(pampd))
-		BUG();
-	if (is_ephemeral(pool))
-		BUG();
-	if (pampd_is_intransit(pampd)) {
-		/*
-		 * to avoid multiple allocations (and maybe a memory leak)
-		 * don't preallocate if already in the process of being
-		 * repatriated
-		 */
-		*intransit = true;
-		goto out;
-	}
-	*intransit = false;
-	local_irq_save(flags);
-	ret_pampd = (void *)zv_alloc(pool, oid, index, clen);
-	if (ret_pampd != NULL) {
-		/*
-		 *  a pampd is marked intransit if it is remote and space has
-		 *  been allocated for it locally (note, only happens for
-		 *  persistent pages, in which case the remote copy is freed)
-		 */
-		ret_pampd = pampd_mark_intransit(ret_pampd);
-		dec_and_check(&ramster_remote_pers_pages);
-	} else
-		ramster_pers_pages_remote_nomem++;
-	local_irq_restore(flags);
-out:
-	return ret_pampd;
-}
-
-/*
- * Called on a remote tmem_get to invoke a message to fetch the page.
- * Might sleep so no tmem locks can be held.  "extra" is passed
- * all the way through the round-trip messaging to zcache_localify.
- */
-static int zcache_pampd_repatriate(void *fake_pampd, void *real_pampd,
-				   struct tmem_pool *pool,
-				   struct tmem_oid *oid, uint32_t index,
-				   bool free, void *extra)
-{
-	struct tmem_xhandle xh;
-	int ret;
-
-	if (pampd_is_intransit(real_pampd))
-		/* have local space pre-reserved, so free remote copy */
-		free = true;
-	xh = tmem_xhandle_fill(LOCAL_CLIENT, pool, oid, index);
-	/* unreliable request/response for now */
-	ret = ramster_remote_async_get(&xh, free,
-					pampd_remote_node(fake_pampd),
-					pampd_remote_size(fake_pampd),
-					pampd_remote_cksum(fake_pampd),
-					extra);
-#ifdef RAMSTER_TESTING
-	if (ret != 0 && ret != -ENOENT)
-		pr_err("TESTING zcache_pampd_repatriate returns, ret=%d\n",
-			ret);
-#endif
-	return ret;
+		page = zbud_free_and_delist((struct zbudref *)pampd,
+						false, &zsize, &zpages);
+		if (page)
+			zcache_pers_pageframes =
+			    atomic_dec_return(&zcache_pers_pageframes_atomic);
+		zcache_pers_zpages =
+		     atomic_sub_return(zpages, &zcache_pers_zpages_atomic);
+		zcache_pers_zbytes =
+		    atomic_long_sub_return(zsize, &zcache_pers_zbytes_atomic);
+	}
+	if (!is_local_client(pool->client))
+		ramster_count_foreign_pages(is_ephemeral(pool), -1);
+	if (page)
+		zcache_free_page(page);
 }
 
 static struct tmem_pamops zcache_pamops = {
-	.create = zcache_pampd_create,
+	.create_finish = zcache_pampd_create_finish,
 	.get_data = zcache_pampd_get_data,
-	.free = zcache_pampd_free,
 	.get_data_and_free = zcache_pampd_get_data_and_free,
-	.free_obj = zcache_pampd_free_obj,
-	.is_remote = zcache_pampd_is_remote,
-	.repatriate_preload = zcache_pampd_repatriate_preload,
-	.repatriate = zcache_pampd_repatriate,
-	.new_obj = zcache_pampd_new_obj,
-	.replace_in_obj = zcache_pampd_replace_in_obj,
+	.free = zcache_pampd_free,
 };
 
 /*
  * zcache compression/decompression and related per-cpu stuff
  */
 
-#define LZO_WORKMEM_BYTES LZO1X_1_MEM_COMPRESS
-#define LZO_DSTMEM_PAGE_ORDER 1
-static DEFINE_PER_CPU(unsigned char *, zcache_workmem);
 static DEFINE_PER_CPU(unsigned char *, zcache_dstmem);
+#define ZCACHE_DSTMEM_ORDER 1
 
-static int zcache_compress(struct page *from, void **out_va, size_t *out_len)
+static void zcache_compress(struct page *from, void **out_va, unsigned *out_len)
 {
-	int ret = 0;
+	int ret;
 	unsigned char *dmem = __get_cpu_var(zcache_dstmem);
-	unsigned char *wmem = __get_cpu_var(zcache_workmem);
 	char *from_va;
 
 	BUG_ON(!irqs_disabled());
-	if (unlikely(dmem == NULL || wmem == NULL))
-		goto out;  /* no buffer, so can't compress */
+	/* no buffer or no compressor so can't compress */
+	BUG_ON(dmem == NULL);
+	*out_len = PAGE_SIZE << ZCACHE_DSTMEM_ORDER;
 	from_va = kmap_atomic(from);
 	mb();
-	ret = lzo1x_1_compress(from_va, PAGE_SIZE, dmem, out_len, wmem);
-	BUG_ON(ret != LZO_E_OK);
+	ret = zcache_comp_op(ZCACHE_COMPOP_COMPRESS, from_va, PAGE_SIZE, dmem,
+				out_len);
+	BUG_ON(ret);
 	*out_va = dmem;
 	kunmap_atomic(from_va);
-	ret = 1;
-out:
-	return ret;
 }
 
+static int zcache_comp_cpu_up(int cpu)
+{
+	struct crypto_comp *tfm;
+
+	tfm = crypto_alloc_comp(zcache_comp_name, 0, 0);
+	if (IS_ERR(tfm))
+		return NOTIFY_BAD;
+	*per_cpu_ptr(zcache_comp_pcpu_tfms, cpu) = tfm;
+	return NOTIFY_OK;
+}
+
+static void zcache_comp_cpu_down(int cpu)
+{
+	struct crypto_comp *tfm;
+
+	tfm = *per_cpu_ptr(zcache_comp_pcpu_tfms, cpu);
+	crypto_free_comp(tfm);
+	*per_cpu_ptr(zcache_comp_pcpu_tfms, cpu) = NULL;
+}
 
 static int zcache_cpu_notifier(struct notifier_block *nb,
 				unsigned long action, void *pcpu)
 {
-	int cpu = (long)pcpu;
+	int ret, i, cpu = (long)pcpu;
 	struct zcache_preload *kp;
 
 	switch (action) {
 	case CPU_UP_PREPARE:
+		ret = zcache_comp_cpu_up(cpu);
+		if (ret != NOTIFY_OK) {
+			pr_err("%s: can't allocate compressor xform\n",
+				namestr);
+			return ret;
+		}
 		per_cpu(zcache_dstmem, cpu) = (void *)__get_free_pages(
-			GFP_KERNEL | __GFP_REPEAT,
-			LZO_DSTMEM_PAGE_ORDER),
-		per_cpu(zcache_workmem, cpu) =
-			kzalloc(LZO1X_MEM_COMPRESS,
-				GFP_KERNEL | __GFP_REPEAT);
-		per_cpu(zcache_remoteputmem, cpu) =
-			kzalloc(PAGE_SIZE, GFP_KERNEL | __GFP_REPEAT);
+			GFP_KERNEL | __GFP_REPEAT, ZCACHE_DSTMEM_ORDER);
+		if (ramster_enabled)
+			ramster_cpu_up(cpu);
 		break;
 	case CPU_DEAD:
 	case CPU_UP_CANCELED:
-		kfree(per_cpu(zcache_remoteputmem, cpu));
-		per_cpu(zcache_remoteputmem, cpu) = NULL;
+		zcache_comp_cpu_down(cpu);
 		free_pages((unsigned long)per_cpu(zcache_dstmem, cpu),
-				LZO_DSTMEM_PAGE_ORDER);
+			ZCACHE_DSTMEM_ORDER);
 		per_cpu(zcache_dstmem, cpu) = NULL;
-		kfree(per_cpu(zcache_workmem, cpu));
-		per_cpu(zcache_workmem, cpu) = NULL;
 		kp = &per_cpu(zcache_preloads, cpu);
-		while (kp->nr) {
-			kmem_cache_free(zcache_objnode_cache,
-					kp->objnodes[kp->nr - 1]);
-			kp->objnodes[kp->nr - 1] = NULL;
-			kp->nr--;
+		for (i = 0; i < ARRAY_SIZE(kp->objnodes); i++) {
+			if (kp->objnodes[i])
+				kmem_cache_free(zcache_objnode_cache,
+						kp->objnodes[i]);
 		}
 		if (kp->obj) {
 			kmem_cache_free(zcache_obj_cache, kp->obj);
 			kp->obj = NULL;
 		}
-		if (kp->flnode) {
-			kmem_cache_free(ramster_flnode_cache, kp->flnode);
-			kp->flnode = NULL;
-		}
-		if (kp->page) {
-			free_page((unsigned long)kp->page);
-			kp->page = NULL;
-		}
+		if (ramster_enabled)
+			ramster_cpu_down(cpu);
 		break;
 	default:
 		break;
@@ -2271,314 +942,104 @@ static struct notifier_block zcache_cpu_notifier_block = {
 	.notifier_call = zcache_cpu_notifier
 };
 
-#ifdef CONFIG_SYSFS
-#define ZCACHE_SYSFS_RO(_name) \
-	static ssize_t zcache_##_name##_show(struct kobject *kobj, \
-				struct kobj_attribute *attr, char *buf) \
-	{ \
-		return sprintf(buf, "%lu\n", zcache_##_name); \
-	} \
-	static struct kobj_attribute zcache_##_name##_attr = { \
-		.attr = { .name = __stringify(_name), .mode = 0444 }, \
-		.show = zcache_##_name##_show, \
-	}
-
-#define ZCACHE_SYSFS_RO_ATOMIC(_name) \
-	static ssize_t zcache_##_name##_show(struct kobject *kobj, \
-				struct kobj_attribute *attr, char *buf) \
-	{ \
-	    return sprintf(buf, "%d\n", atomic_read(&zcache_##_name)); \
-	} \
-	static struct kobj_attribute zcache_##_name##_attr = { \
-		.attr = { .name = __stringify(_name), .mode = 0444 }, \
-		.show = zcache_##_name##_show, \
-	}
-
-#define ZCACHE_SYSFS_RO_CUSTOM(_name, _func) \
-	static ssize_t zcache_##_name##_show(struct kobject *kobj, \
-				struct kobj_attribute *attr, char *buf) \
-	{ \
-	    return _func(buf); \
-	} \
-	static struct kobj_attribute zcache_##_name##_attr = { \
-		.attr = { .name = __stringify(_name), .mode = 0444 }, \
-		.show = zcache_##_name##_show, \
-	}
-
-ZCACHE_SYSFS_RO(curr_obj_count_max);
-ZCACHE_SYSFS_RO(curr_objnode_count_max);
-ZCACHE_SYSFS_RO(flush_total);
-ZCACHE_SYSFS_RO(flush_found);
-ZCACHE_SYSFS_RO(flobj_total);
-ZCACHE_SYSFS_RO(flobj_found);
-ZCACHE_SYSFS_RO(failed_eph_puts);
-ZCACHE_SYSFS_RO(nonactive_puts);
-ZCACHE_SYSFS_RO(failed_pers_puts);
-ZCACHE_SYSFS_RO(zbud_curr_zbytes);
-ZCACHE_SYSFS_RO(zbud_cumul_zpages);
-ZCACHE_SYSFS_RO(zbud_cumul_zbytes);
-ZCACHE_SYSFS_RO(zbud_buddied_count);
-ZCACHE_SYSFS_RO(evicted_raw_pages);
-ZCACHE_SYSFS_RO(evicted_unbuddied_pages);
-ZCACHE_SYSFS_RO(evicted_buddied_pages);
-ZCACHE_SYSFS_RO(failed_get_free_pages);
-ZCACHE_SYSFS_RO(failed_alloc);
-ZCACHE_SYSFS_RO(put_to_flush);
-ZCACHE_SYSFS_RO(compress_poor);
-ZCACHE_SYSFS_RO(mean_compress_poor);
-ZCACHE_SYSFS_RO(policy_percent_exceeded);
-ZCACHE_SYSFS_RO_ATOMIC(zbud_curr_raw_pages);
-ZCACHE_SYSFS_RO_ATOMIC(zbud_curr_zpages);
-ZCACHE_SYSFS_RO_ATOMIC(curr_obj_count);
-ZCACHE_SYSFS_RO_ATOMIC(curr_objnode_count);
-ZCACHE_SYSFS_RO_CUSTOM(zbud_unbuddied_list_counts,
-			zbud_show_unbuddied_list_counts);
-ZCACHE_SYSFS_RO_CUSTOM(zbud_cumul_chunk_counts,
-			zbud_show_cumul_chunk_counts);
-ZCACHE_SYSFS_RO_CUSTOM(zv_curr_dist_counts,
-			zv_curr_dist_counts_show);
-ZCACHE_SYSFS_RO_CUSTOM(zv_cumul_dist_counts,
-			zv_cumul_dist_counts_show);
-
-static struct attribute *zcache_attrs[] = {
-	&zcache_curr_obj_count_attr.attr,
-	&zcache_curr_obj_count_max_attr.attr,
-	&zcache_curr_objnode_count_attr.attr,
-	&zcache_curr_objnode_count_max_attr.attr,
-	&zcache_flush_total_attr.attr,
-	&zcache_flobj_total_attr.attr,
-	&zcache_flush_found_attr.attr,
-	&zcache_flobj_found_attr.attr,
-	&zcache_failed_eph_puts_attr.attr,
-	&zcache_nonactive_puts_attr.attr,
-	&zcache_failed_pers_puts_attr.attr,
-	&zcache_policy_percent_exceeded_attr.attr,
-	&zcache_compress_poor_attr.attr,
-	&zcache_mean_compress_poor_attr.attr,
-	&zcache_zbud_curr_raw_pages_attr.attr,
-	&zcache_zbud_curr_zpages_attr.attr,
-	&zcache_zbud_curr_zbytes_attr.attr,
-	&zcache_zbud_cumul_zpages_attr.attr,
-	&zcache_zbud_cumul_zbytes_attr.attr,
-	&zcache_zbud_buddied_count_attr.attr,
-	&zcache_evicted_raw_pages_attr.attr,
-	&zcache_evicted_unbuddied_pages_attr.attr,
-	&zcache_evicted_buddied_pages_attr.attr,
-	&zcache_failed_get_free_pages_attr.attr,
-	&zcache_failed_alloc_attr.attr,
-	&zcache_put_to_flush_attr.attr,
-	&zcache_zbud_unbuddied_list_counts_attr.attr,
-	&zcache_zbud_cumul_chunk_counts_attr.attr,
-	&zcache_zv_curr_dist_counts_attr.attr,
-	&zcache_zv_cumul_dist_counts_attr.attr,
-	&zcache_zv_max_zsize_attr.attr,
-	&zcache_zv_max_mean_zsize_attr.attr,
-	&zcache_zv_page_count_policy_percent_attr.attr,
-	NULL,
-};
-
-static struct attribute_group zcache_attr_group = {
-	.attrs = zcache_attrs,
-	.name = "zcache",
-};
-
-#define RAMSTER_SYSFS_RO(_name) \
-	static ssize_t ramster_##_name##_show(struct kobject *kobj, \
-				struct kobj_attribute *attr, char *buf) \
-	{ \
-		return sprintf(buf, "%lu\n", ramster_##_name); \
-	} \
-	static struct kobj_attribute ramster_##_name##_attr = { \
-		.attr = { .name = __stringify(_name), .mode = 0444 }, \
-		.show = ramster_##_name##_show, \
-	}
-
-#define RAMSTER_SYSFS_RW(_name) \
-	static ssize_t ramster_##_name##_show(struct kobject *kobj, \
-				struct kobj_attribute *attr, char *buf) \
-	{ \
-		return sprintf(buf, "%lu\n", ramster_##_name); \
-	} \
-	static ssize_t ramster_##_name##_store(struct kobject *kobj, \
-		struct kobj_attribute *attr, const char *buf, size_t count) \
-	{ \
-		int err; \
-		unsigned long enable; \
-		err = kstrtoul(buf, 10, &enable); \
-		if (err) \
-			return -EINVAL; \
-		ramster_##_name = enable; \
-		return count; \
-	} \
-	static struct kobj_attribute ramster_##_name##_attr = { \
-		.attr = { .name = __stringify(_name), .mode = 0644 }, \
-		.show = ramster_##_name##_show, \
-		.store = ramster_##_name##_store, \
-	}
-
-#define RAMSTER_SYSFS_RO_ATOMIC(_name) \
-	static ssize_t ramster_##_name##_show(struct kobject *kobj, \
-				struct kobj_attribute *attr, char *buf) \
-	{ \
-	    return sprintf(buf, "%d\n", atomic_read(&ramster_##_name)); \
-	} \
-	static struct kobj_attribute ramster_##_name##_attr = { \
-		.attr = { .name = __stringify(_name), .mode = 0444 }, \
-		.show = ramster_##_name##_show, \
-	}
-
-RAMSTER_SYSFS_RO(interface_revision);
-RAMSTER_SYSFS_RO_ATOMIC(remote_pers_pages);
-RAMSTER_SYSFS_RW(pers_remotify_enable);
-RAMSTER_SYSFS_RW(eph_remotify_enable);
-RAMSTER_SYSFS_RO(eph_pages_remoted);
-RAMSTER_SYSFS_RO(eph_pages_remote_failed);
-RAMSTER_SYSFS_RO(pers_pages_remoted);
-RAMSTER_SYSFS_RO(pers_pages_remote_failed);
-RAMSTER_SYSFS_RO(pers_pages_remote_nomem);
-RAMSTER_SYSFS_RO(remote_pages_flushed);
-RAMSTER_SYSFS_RO(remote_page_flushes_failed);
-RAMSTER_SYSFS_RO(remote_objects_flushed);
-RAMSTER_SYSFS_RO(remote_object_flushes_failed);
-RAMSTER_SYSFS_RO(remote_eph_pages_succ_get);
-RAMSTER_SYSFS_RO(remote_eph_pages_unsucc_get);
-RAMSTER_SYSFS_RO(remote_pers_pages_succ_get);
-RAMSTER_SYSFS_RO(remote_pers_pages_unsucc_get);
-RAMSTER_SYSFS_RO_ATOMIC(foreign_eph_pampd_count);
-RAMSTER_SYSFS_RO(foreign_eph_pampd_count_max);
-RAMSTER_SYSFS_RO_ATOMIC(foreign_pers_pampd_count);
-RAMSTER_SYSFS_RO(foreign_pers_pampd_count_max);
-RAMSTER_SYSFS_RO_ATOMIC(curr_flnode_count);
-RAMSTER_SYSFS_RO(curr_flnode_count_max);
-
-#define MANUAL_NODES 8
-static bool ramster_nodes_manual_up[MANUAL_NODES];
-static ssize_t ramster_manual_node_up_show(struct kobject *kobj,
-				struct kobj_attribute *attr, char *buf)
-{
-	int i;
-	char *p = buf;
-	for (i = 0; i < MANUAL_NODES; i++)
-		if (ramster_nodes_manual_up[i])
-			p += sprintf(p, "%d ", i);
-	p += sprintf(p, "\n");
-	return p - buf;
-}
+/*
+ * The following code interacts with the zbud eviction and zbud
+ * zombify code to access LRU pages
+ */
 
-static ssize_t ramster_manual_node_up_store(struct kobject *kobj,
-		struct kobj_attribute *attr, const char *buf, size_t count)
+static struct page *zcache_evict_eph_pageframe(void)
 {
-	int err;
-	unsigned long node_num;
+	struct page *page;
+	unsigned int zsize = 0, zpages = 0;
 
-	err = kstrtoul(buf, 10, &node_num);
-	if (err) {
-		pr_err("ramster: bad strtoul?\n");
-		return -EINVAL;
-	}
-	if (node_num >= MANUAL_NODES) {
-		pr_err("ramster: bad node_num=%lu?\n", node_num);
-		return -EINVAL;
-	}
-	if (ramster_nodes_manual_up[node_num]) {
-		pr_err("ramster: node %d already up, ignoring\n",
-							(int)node_num);
-	} else {
-		ramster_nodes_manual_up[node_num] = true;
-		r2net_hb_node_up_manual((int)node_num);
-	}
-	return count;
+	page = zbud_evict_pageframe_lru(&zsize, &zpages);
+	if (page == NULL)
+		goto out;
+	zcache_eph_zbytes = atomic_long_sub_return(zsize,
+					&zcache_eph_zbytes_atomic);
+	zcache_eph_zpages = atomic_sub_return(zpages,
+					&zcache_eph_zpages_atomic);
+	zcache_evicted_eph_zpages++;
+	zcache_eph_pageframes =
+		atomic_dec_return(&zcache_eph_pageframes_atomic);
+	zcache_evicted_eph_pageframes++;
+out:
+	return page;
 }
 
-static struct kobj_attribute ramster_manual_node_up_attr = {
-	.attr = { .name = "manual_node_up", .mode = 0644 },
-	.show = ramster_manual_node_up_show,
-	.store = ramster_manual_node_up_store,
-};
+#ifdef FRONTSWAP_HAS_UNUSE
+static void unswiz(struct tmem_oid oid, u32 index,
+				unsigned *type, pgoff_t *offset);
 
-static ssize_t ramster_remote_target_nodenum_show(struct kobject *kobj,
-				struct kobj_attribute *attr, char *buf)
+/*
+ *  Choose an LRU persistent pageframe and attempt to "unuse" it by
+ *  calling frontswap_unuse on both zpages.
+ *
+ *  This is work-in-progress.
+ */
+
+static int zcache_frontswap_unuse(void)
 {
-	if (ramster_remote_target_nodenum == -1UL)
-		return sprintf(buf, "unset\n");
-	else
-		return sprintf(buf, "%d\n", ramster_remote_target_nodenum);
-}
-
-static ssize_t ramster_remote_target_nodenum_store(struct kobject *kobj,
-		struct kobj_attribute *attr, const char *buf, size_t count)
-{
-	int err;
-	unsigned long node_num;
-
-	err = kstrtoul(buf, 10, &node_num);
-	if (err) {
-		pr_err("ramster: bad strtoul?\n");
-		return -EINVAL;
-	} else if (node_num == -1UL) {
-		pr_err("ramster: disabling all remotification, "
-			"data may still reside on remote nodes however\n");
-		return -EINVAL;
-	} else if (node_num >= MANUAL_NODES) {
-		pr_err("ramster: bad node_num=%lu?\n", node_num);
-		return -EINVAL;
-	} else if (!ramster_nodes_manual_up[node_num]) {
-		pr_err("ramster: node %d not up, ignoring setting "
-			"of remotification target\n", (int)node_num);
-	} else if (r2net_remote_target_node_set((int)node_num) >= 0) {
-		pr_info("ramster: node %d set as remotification target\n",
-				(int)node_num);
-		ramster_remote_target_nodenum = (int)node_num;
-	} else {
-		pr_err("ramster: bad num to node node_num=%d?\n",
-				(int)node_num);
-		return -EINVAL;
+	struct tmem_handle th[2];
+	int ret = -ENOMEM;
+	int nzbuds, unuse_ret;
+	unsigned type;
+	struct page *newpage1 = NULL, *newpage2 = NULL;
+	struct page *evictpage1 = NULL, *evictpage2 = NULL;
+	pgoff_t offset;
+
+	newpage1 = alloc_page(ZCACHE_GFP_MASK);
+	newpage2 = alloc_page(ZCACHE_GFP_MASK);
+	if (newpage1 == NULL)
+		evictpage1 = zcache_evict_eph_pageframe();
+	if (newpage2 == NULL)
+		evictpage2 = zcache_evict_eph_pageframe();
+	if (evictpage1 == NULL || evictpage2 == NULL)
+		goto free_and_out;
+	/* ok, we have two pages pre-allocated */
+	nzbuds = zbud_make_zombie_lru(&th[0], NULL, NULL, false);
+	if (nzbuds == 0) {
+		ret = -ENOENT;
+		goto free_and_out;
+	}
+	unswiz(th[0].oid, th[0].index, &type, &offset);
+	unuse_ret = frontswap_unuse(type, offset,
+				newpage1 != NULL ? newpage1 : evictpage1,
+				ZCACHE_GFP_MASK);
+	if (unuse_ret != 0)
+		goto free_and_out;
+	else if (evictpage1 != NULL)
+		zcache_unacct_page();
+	newpage1 = NULL;
+	evictpage1 = NULL;
+	if (nzbuds == 2) {
+		unswiz(th[1].oid, th[1].index, &type, &offset);
+		unuse_ret = frontswap_unuse(type, offset,
+				newpage2 != NULL ? newpage2 : evictpage2,
+				ZCACHE_GFP_MASK);
+		if (unuse_ret != 0) {
+			goto free_and_out;
+		} else if (evictpage2 != NULL) {
+			zcache_unacct_page();
+		}
 	}
-	return count;
+	ret = 0;
+	goto out;
+
+free_and_out:
+	if (newpage1 != NULL)
+		__free_page(newpage1);
+	if (newpage2 != NULL)
+		__free_page(newpage2);
+	if (evictpage1 != NULL)
+		zcache_free_page(evictpage1);
+	if (evictpage2 != NULL)
+		zcache_free_page(evictpage2);
+out:
+	return ret;
 }
+#endif
 
-static struct kobj_attribute ramster_remote_target_nodenum_attr = {
-	.attr = { .name = "remote_target_nodenum", .mode = 0644 },
-	.show = ramster_remote_target_nodenum_show,
-	.store = ramster_remote_target_nodenum_store,
-};
-
-
-static struct attribute *ramster_attrs[] = {
-	&ramster_interface_revision_attr.attr,
-	&ramster_pers_remotify_enable_attr.attr,
-	&ramster_eph_remotify_enable_attr.attr,
-	&ramster_remote_pers_pages_attr.attr,
-	&ramster_eph_pages_remoted_attr.attr,
-	&ramster_eph_pages_remote_failed_attr.attr,
-	&ramster_pers_pages_remoted_attr.attr,
-	&ramster_pers_pages_remote_failed_attr.attr,
-	&ramster_pers_pages_remote_nomem_attr.attr,
-	&ramster_remote_pages_flushed_attr.attr,
-	&ramster_remote_page_flushes_failed_attr.attr,
-	&ramster_remote_objects_flushed_attr.attr,
-	&ramster_remote_object_flushes_failed_attr.attr,
-	&ramster_remote_eph_pages_succ_get_attr.attr,
-	&ramster_remote_eph_pages_unsucc_get_attr.attr,
-	&ramster_remote_pers_pages_succ_get_attr.attr,
-	&ramster_remote_pers_pages_unsucc_get_attr.attr,
-	&ramster_foreign_eph_pampd_count_attr.attr,
-	&ramster_foreign_eph_pampd_count_max_attr.attr,
-	&ramster_foreign_pers_pampd_count_attr.attr,
-	&ramster_foreign_pers_pampd_count_max_attr.attr,
-	&ramster_curr_flnode_count_attr.attr,
-	&ramster_curr_flnode_count_max_attr.attr,
-	&ramster_manual_node_up_attr.attr,
-	&ramster_remote_target_nodenum_attr.attr,
-	NULL,
-};
-
-static struct attribute_group ramster_attr_group = {
-	.attrs = ramster_attrs,
-	.name = "ramster",
-};
-
-#endif /* CONFIG_SYSFS */
 /*
  * When zcache is disabled ("frozen"), pools can be created and destroyed,
  * but all puts (and thus all other operations that require memory allocation)
@@ -2589,23 +1050,74 @@ static struct attribute_group ramster_attr_group = {
 static bool zcache_freeze;
 
 /*
- * zcache shrinker interface (only useful for ephemeral pages, so zbud only)
+ * This zcache shrinker interface reduces the number of ephemeral pageframes
+ * used by zcache to approximately the same as the total number of LRU_FILE
+ * pageframes in use.
  */
 static int shrink_zcache_memory(struct shrinker *shrink,
 				struct shrink_control *sc)
 {
+	static bool in_progress;
 	int ret = -1;
 	int nr = sc->nr_to_scan;
-	gfp_t gfp_mask = sc->gfp_mask;
+	int nr_evict = 0;
+	int nr_unuse = 0;
+	struct page *page;
+#ifdef FRONTSWAP_HAS_UNUSE
+	int unuse_ret;
+#endif
 
-	if (nr >= 0) {
-		if (!(gfp_mask & __GFP_FS))
-			/* does this case really need to be skipped? */
-			goto out;
-		zbud_evict_pages(nr);
+	if (nr <= 0)
+		goto skip_evict;
+
+	/* don't allow more than one eviction thread at a time */
+	if (in_progress)
+		goto skip_evict;
+
+	in_progress = true;
+
+	/* we are going to ignore nr, and target a different value */
+	zcache_last_active_file_pageframes =
+		global_page_state(NR_LRU_BASE + LRU_ACTIVE_FILE);
+	zcache_last_inactive_file_pageframes =
+		global_page_state(NR_LRU_BASE + LRU_INACTIVE_FILE);
+	nr_evict = zcache_eph_pageframes - zcache_last_active_file_pageframes +
+		zcache_last_inactive_file_pageframes;
+	while (nr_evict-- > 0) {
+		page = zcache_evict_eph_pageframe();
+		if (page == NULL)
+			break;
+		zcache_free_page(page);
+	}
+
+	zcache_last_active_anon_pageframes =
+		global_page_state(NR_LRU_BASE + LRU_ACTIVE_ANON);
+	zcache_last_inactive_anon_pageframes =
+		global_page_state(NR_LRU_BASE + LRU_INACTIVE_ANON);
+	nr_unuse = zcache_pers_pageframes - zcache_last_active_anon_pageframes +
+		zcache_last_inactive_anon_pageframes;
+#ifdef FRONTSWAP_HAS_UNUSE
+	/* rate limit for testing */
+	if (nr_unuse > 32)
+		nr_unuse = 32;
+	while (nr_unuse-- > 0) {
+		unuse_ret = zcache_frontswap_unuse();
+		if (unuse_ret == -ENOMEM)
+			break;
 	}
-	ret = (int)atomic_read(&zcache_zbud_curr_raw_pages);
-out:
+#endif
+	in_progress = false;
+
+skip_evict:
+	/* resample: has changed, but maybe not all the way yet */
+	zcache_last_active_file_pageframes =
+		global_page_state(NR_LRU_BASE + LRU_ACTIVE_FILE);
+	zcache_last_inactive_file_pageframes =
+		global_page_state(NR_LRU_BASE + LRU_INACTIVE_FILE);
+	ret = zcache_eph_pageframes - zcache_last_active_file_pageframes +
+		zcache_last_inactive_file_pageframes;
+	if (ret < 0)
+		ret = 0;
 	return ret;
 }
 
@@ -2618,30 +1130,46 @@ static struct shrinker zcache_shrinker = {
  * zcache shims between cleancache/frontswap ops and tmem
  */
 
-int zcache_put(int cli_id, int pool_id, struct tmem_oid *oidp,
-			uint32_t index, char *data, size_t size,
-			bool raw, int ephemeral)
+/* FIXME rename these core routines to zcache_tmemput etc? */
+int zcache_put_page(int cli_id, int pool_id, struct tmem_oid *oidp,
+				uint32_t index, void *page,
+				unsigned int size, bool raw, int ephemeral)
 {
 	struct tmem_pool *pool;
+	struct tmem_handle th;
 	int ret = -1;
+	void *pampd = NULL;
 
 	BUG_ON(!irqs_disabled());
 	pool = zcache_get_pool_by_id(cli_id, pool_id);
 	if (unlikely(pool == NULL))
 		goto out;
-	if (!zcache_freeze && zcache_do_preload(pool) == 0) {
-		/* preload does preempt_disable on success */
-		ret = tmem_put(pool, oidp, index, data, size, raw, ephemeral);
-		if (ret < 0) {
-			if (is_ephemeral(pool))
+	if (!zcache_freeze) {
+		ret = 0;
+		th.client_id = cli_id;
+		th.pool_id = pool_id;
+		th.oid = *oidp;
+		th.index = index;
+		pampd = zcache_pampd_create((char *)page, size, raw,
+				ephemeral, &th);
+		if (pampd == NULL) {
+			ret = -ENOMEM;
+			if (ephemeral)
 				zcache_failed_eph_puts++;
 			else
 				zcache_failed_pers_puts++;
+		} else {
+			if (ramster_enabled)
+				ramster_do_preload_flnode(pool);
+			ret = tmem_put(pool, oidp, index, 0, pampd);
+			if (ret < 0)
+				BUG();
 		}
 		zcache_put_pool(pool);
-		preempt_enable_no_resched();
 	} else {
 		zcache_put_to_flush++;
+		if (ramster_enabled)
+			ramster_do_preload_flnode(pool);
 		if (atomic_read(&pool->obj_count) > 0)
 			/* the put fails whether the flush succeeds or not */
 			(void)tmem_flush_page(pool, oidp, index);
@@ -2651,9 +1179,9 @@ out:
 	return ret;
 }
 
-int zcache_get(int cli_id, int pool_id, struct tmem_oid *oidp,
-			uint32_t index, char *data, size_t *sizep,
-			bool raw, int get_and_free)
+int zcache_get_page(int cli_id, int pool_id, struct tmem_oid *oidp,
+				uint32_t index, void *page,
+				size_t *sizep, bool raw, int get_and_free)
 {
 	struct tmem_pool *pool;
 	int ret = -1;
@@ -2667,22 +1195,21 @@ int zcache_get(int cli_id, int pool_id, struct tmem_oid *oidp,
 	eph = is_ephemeral(pool);
 	if (likely(pool != NULL)) {
 		if (atomic_read(&pool->obj_count) > 0)
-			ret = tmem_get(pool, oidp, index, data, sizep,
-					raw, get_and_free);
+			ret = tmem_get(pool, oidp, index, (char *)(page),
+					sizep, raw, get_and_free);
 		zcache_put_pool(pool);
 	}
-	WARN_ONCE((!eph && (ret != 0)), "zcache_get fails on persistent pool, "
-			  "bad things are very likely to happen soon\n");
+	WARN_ONCE((!is_ephemeral(pool) && (ret != 0)),
+			"zcache_get fails on persistent pool, "
+			"bad things are very likely to happen soon\n");
 #ifdef RAMSTER_TESTING
 	if (ret != 0 && ret != -1 && !(ret == -EINVAL && is_ephemeral(pool)))
 		pr_err("TESTING zcache_get tmem_get returns ret=%d\n", ret);
 #endif
-	if (ret == -EAGAIN)
-		BUG(); /* FIXME... don't need this anymore??? let's ensure */
 	return ret;
 }
 
-int zcache_flush(int cli_id, int pool_id,
+int zcache_flush_page(int cli_id, int pool_id,
 				struct tmem_oid *oidp, uint32_t index)
 {
 	struct tmem_pool *pool;
@@ -2692,7 +1219,8 @@ int zcache_flush(int cli_id, int pool_id,
 	local_irq_save(flags);
 	zcache_flush_total++;
 	pool = zcache_get_pool_by_id(cli_id, pool_id);
-	ramster_do_preload_flnode_only(pool);
+	if (ramster_enabled)
+		ramster_do_preload_flnode(pool);
 	if (likely(pool != NULL)) {
 		if (atomic_read(&pool->obj_count) > 0)
 			ret = tmem_flush_page(pool, oidp, index);
@@ -2704,7 +1232,8 @@ int zcache_flush(int cli_id, int pool_id,
 	return ret;
 }
 
-int zcache_flush_object(int cli_id, int pool_id, struct tmem_oid *oidp)
+int zcache_flush_object(int cli_id, int pool_id,
+				struct tmem_oid *oidp)
 {
 	struct tmem_pool *pool;
 	int ret = -1;
@@ -2713,7 +1242,8 @@ int zcache_flush_object(int cli_id, int pool_id, struct tmem_oid *oidp)
 	local_irq_save(flags);
 	zcache_flobj_total++;
 	pool = zcache_get_pool_by_id(cli_id, pool_id);
-	ramster_do_preload_flnode_only(pool);
+	if (ramster_enabled)
+		ramster_do_preload_flnode(pool);
 	if (likely(pool != NULL)) {
 		if (atomic_read(&pool->obj_count) > 0)
 			ret = tmem_flush_object(pool, oidp);
@@ -2725,7 +1255,7 @@ int zcache_flush_object(int cli_id, int pool_id, struct tmem_oid *oidp)
 	return ret;
 }
 
-int zcache_client_destroy_pool(int cli_id, int pool_id)
+static int zcache_client_destroy_pool(int cli_id, int pool_id)
 {
 	struct tmem_pool *pool = NULL;
 	struct zcache_client *cli = NULL;
@@ -2752,16 +1282,15 @@ int zcache_client_destroy_pool(int cli_id, int pool_id)
 	ret = tmem_destroy_pool(pool);
 	local_bh_enable();
 	kfree(pool);
-	pr_info("ramster: destroyed pool id=%d cli_id=%d\n", pool_id, cli_id);
+	if (cli_id == LOCAL_CLIENT)
+		pr_info("%s: destroyed local pool id=%d\n", namestr, pool_id);
+	else
+		pr_info("%s: destroyed pool id=%d, client=%d\n",
+				namestr, pool_id, cli_id);
 out:
 	return ret;
 }
 
-static int zcache_destroy_pool(int pool_id)
-{
-	return zcache_client_destroy_pool(LOCAL_CLIENT, pool_id);
-}
-
 int zcache_new_pool(uint16_t cli_id, uint32_t flags)
 {
 	int poolid = -1;
@@ -2777,7 +1306,7 @@ int zcache_new_pool(uint16_t cli_id, uint32_t flags)
 	atomic_inc(&cli->refcount);
 	pool = kmalloc(sizeof(struct tmem_pool), GFP_ATOMIC);
 	if (pool == NULL) {
-		pr_info("ramster: pool creation failed: out of memory\n");
+		pr_info("%s: pool creation failed: out of memory\n", namestr);
 		goto out;
 	}
 
@@ -2785,7 +1314,7 @@ int zcache_new_pool(uint16_t cli_id, uint32_t flags)
 		if (cli->tmem_pools[poolid] == NULL)
 			break;
 	if (poolid >= MAX_POOLS_PER_CLIENT) {
-		pr_info("ramster: pool creation failed: max exceeded\n");
+		pr_info("%s: pool creation failed: max exceeded\n", namestr);
 		kfree(pool);
 		poolid = -1;
 		goto out;
@@ -2796,11 +1325,11 @@ int zcache_new_pool(uint16_t cli_id, uint32_t flags)
 	tmem_new_pool(pool, flags);
 	cli->tmem_pools[poolid] = pool;
 	if (cli_id == LOCAL_CLIENT)
-		pr_info("ramster: created %s tmem pool, id=%d, local client\n",
+		pr_info("%s: created %s local tmem pool, id=%d\n", namestr,
 			flags & TMEM_POOL_PERSIST ? "persistent" : "ephemeral",
 			poolid);
 	else
-		pr_info("ramster: created %s tmem pool, id=%d, client=%d\n",
+		pr_info("%s: created %s tmem pool, id=%d, client=%d\n", namestr,
 			flags & TMEM_POOL_PERSIST ? "persistent" : "ephemeral",
 			poolid, cli_id);
 out:
@@ -2814,30 +1343,37 @@ static int zcache_local_new_pool(uint32_t flags)
 	return zcache_new_pool(LOCAL_CLIENT, flags);
 }
 
-int zcache_autocreate_pool(int cli_id, int pool_id, bool ephemeral)
+int zcache_autocreate_pool(unsigned int cli_id, unsigned int pool_id, bool eph)
 {
 	struct tmem_pool *pool;
-	struct zcache_client *cli = NULL;
-	uint32_t flags = ephemeral ? 0 : TMEM_POOL_PERSIST;
+	struct zcache_client *cli;
+	uint32_t flags = eph ? 0 : TMEM_POOL_PERSIST;
 	int ret = -1;
 
+	BUG_ON(!ramster_enabled);
 	if (cli_id == LOCAL_CLIENT)
 		goto out;
 	if (pool_id >= MAX_POOLS_PER_CLIENT)
 		goto out;
-	else if ((unsigned int)cli_id < MAX_CLIENTS)
-		cli = &zcache_clients[cli_id];
-	if ((ephemeral && !use_cleancache) || (!ephemeral && !use_frontswap))
-		BUG(); /* FIXME, handle more gracefully later */
+	if (cli_id >= MAX_CLIENTS)
+		goto out;
+
+	cli = &zcache_clients[cli_id];
+	if ((eph && disable_cleancache) || (!eph && disable_frontswap)) {
+		pr_err("zcache_autocreate_pool: pool type disabled\n");
+		goto out;
+	}
 	if (!cli->allocated) {
-		if (zcache_new_client(cli_id))
-			BUG(); /* FIXME, handle more gracefully later */
+		if (zcache_new_client(cli_id)) {
+			pr_err("zcache_autocreate_pool: can't create client\n");
+			goto out;
+		}
 		cli = &zcache_clients[cli_id];
 	}
 	atomic_inc(&cli->refcount);
 	pool = cli->tmem_pools[pool_id];
 	if (pool != NULL) {
-		if (pool->persistent && ephemeral) {
+		if (pool->persistent && eph) {
 			pr_err("zcache_autocreate_pool: type mismatch\n");
 			goto out;
 		}
@@ -2846,7 +1382,7 @@ int zcache_autocreate_pool(int cli_id, int pool_id, bool ephemeral)
 	}
 	pool = kmalloc(sizeof(struct tmem_pool), GFP_KERNEL);
 	if (pool == NULL) {
-		pr_info("ramster: pool creation failed: out of memory\n");
+		pr_info("%s: pool creation failed: out of memory\n", namestr);
 		goto out;
 	}
 	atomic_set(&pool->refcount, 0);
@@ -2854,14 +1390,11 @@ int zcache_autocreate_pool(int cli_id, int pool_id, bool ephemeral)
 	pool->pool_id = pool_id;
 	tmem_new_pool(pool, flags);
 	cli->tmem_pools[pool_id] = pool;
-	pr_info("ramster: AUTOcreated %s tmem poolid=%d, for remote client=%d\n",
-		flags & TMEM_POOL_PERSIST ? "persistent" : "ephemeral",
+	pr_info("%s: AUTOcreated %s tmem poolid=%d, for remote client=%d\n",
+		namestr, flags & TMEM_POOL_PERSIST ? "persistent" : "ephemeral",
 		pool_id, cli_id);
 	ret = 0;
 out:
-	if (cli == NULL)
-		BUG(); /* FIXME, handle more gracefully later */
-		/* pr_err("zcache_autocreate_pool: failed\n"); */
 	if (cli != NULL)
 		atomic_dec(&cli->refcount);
 	return ret;
@@ -2875,7 +1408,6 @@ out:
  * to translate in-kernel semantics to zcache semantics.
  */
 
-#ifdef CONFIG_CLEANCACHE
 static void zcache_cleancache_put_page(int pool_id,
 					struct cleancache_filekey key,
 					pgoff_t index, struct page *page)
@@ -2883,18 +1415,13 @@ static void zcache_cleancache_put_page(int pool_id,
 	u32 ind = (u32) index;
 	struct tmem_oid oid = *(struct tmem_oid *)&key;
 
-#ifdef __PG_WAS_ACTIVE
-	if (!PageWasActive(page)) {
-		zcache_nonactive_puts++;
+	if (!disable_cleancache_ignore_nonactive && !PageWasActive(page)) {
+		zcache_eph_nonactive_puts_ignored++;
 		return;
 	}
-#endif
-	if (likely(ind == index)) {
-		char *kva = page_address(page);
-
-		(void)zcache_put(LOCAL_CLIENT, pool_id, &oid, index,
-			kva, PAGE_SIZE, 0, 1);
-	}
+	if (likely(ind == index))
+		(void)zcache_put_page(LOCAL_CLIENT, pool_id, &oid, index,
+					page, PAGE_SIZE, false, 1);
 }
 
 static int zcache_cleancache_get_page(int pool_id,
@@ -2903,21 +1430,16 @@ static int zcache_cleancache_get_page(int pool_id,
 {
 	u32 ind = (u32) index;
 	struct tmem_oid oid = *(struct tmem_oid *)&key;
+	size_t size;
 	int ret = -1;
 
-	preempt_disable();
 	if (likely(ind == index)) {
-		char *kva = page_address(page);
-		size_t size = PAGE_SIZE;
-
-		ret = zcache_get(LOCAL_CLIENT, pool_id, &oid, index,
-			kva, &size, 0, 0);
-#ifdef __PG_WAS_ACTIVE
+		ret = zcache_get_page(LOCAL_CLIENT, pool_id, &oid, index,
+					page, &size, false, 0);
+		BUG_ON(ret >= 0 && size != PAGE_SIZE);
 		if (ret == 0)
 			SetPageWasActive(page);
-#endif
 	}
-	preempt_enable();
 	return ret;
 }
 
@@ -2929,7 +1451,7 @@ static void zcache_cleancache_flush_page(int pool_id,
 	struct tmem_oid oid = *(struct tmem_oid *)&key;
 
 	if (likely(ind == index))
-		(void)zcache_flush(LOCAL_CLIENT, pool_id, &oid, ind);
+		(void)zcache_flush_page(LOCAL_CLIENT, pool_id, &oid, ind);
 }
 
 static void zcache_cleancache_flush_inode(int pool_id,
@@ -2943,7 +1465,7 @@ static void zcache_cleancache_flush_inode(int pool_id,
 static void zcache_cleancache_flush_fs(int pool_id)
 {
 	if (pool_id >= 0)
-		(void)zcache_destroy_pool(pool_id);
+		(void)zcache_client_destroy_pool(LOCAL_CLIENT, pool_id);
 }
 
 static int zcache_cleancache_init_fs(size_t pagesize)
@@ -2980,15 +1502,15 @@ struct cleancache_ops zcache_cleancache_register_ops(void)
 
 	return old_ops;
 }
-#endif
 
-#ifdef CONFIG_FRONTSWAP
 /* a single tmem poolid is used for all frontswap "types" (swapfiles) */
-static int zcache_frontswap_poolid = -1;
+static int zcache_frontswap_poolid __read_mostly = -1;
 
 /*
  * Swizzling increases objects per swaptype, increasing tmem concurrency
  * for heavy swaploads.  Later, larger nr_cpus -> larger SWIZ_BITS
+ * Setting SWIZ_BITS to 27 basically reconstructs the swap entry from
+ * frontswap_get_page(), but has side-effects. Hence using 8.
  */
 #define SWIZ_BITS		8
 #define SWIZ_MASK		((1 << SWIZ_BITS) - 1)
@@ -3002,47 +1524,64 @@ static inline struct tmem_oid oswiz(unsigned type, u32 ind)
 	return oid;
 }
 
-static int zcache_frontswap_store(unsigned type, pgoff_t offset,
-				   struct page *page)
+#ifdef FRONTSWAP_HAS_UNUSE
+static void unswiz(struct tmem_oid oid, u32 index,
+				unsigned *type, pgoff_t *offset)
+{
+	*type = (unsigned)(oid.oid[0] >> SWIZ_BITS);
+	*offset = (pgoff_t)((index << SWIZ_BITS) |
+			(oid.oid[0] & SWIZ_MASK));
+}
+#endif
+
+static int zcache_frontswap_put_page(unsigned type, pgoff_t offset,
+					struct page *page)
 {
 	u64 ind64 = (u64)offset;
 	u32 ind = (u32)offset;
 	struct tmem_oid oid = oswiz(type, ind);
 	int ret = -1;
 	unsigned long flags;
-	char *kva;
 
 	BUG_ON(!PageLocked(page));
+	if (!disable_frontswap_ignore_nonactive && !PageWasActive(page)) {
+		zcache_pers_nonactive_puts_ignored++;
+		ret = -ERANGE;
+		goto out;
+	}
 	if (likely(ind64 == ind)) {
 		local_irq_save(flags);
-		kva = page_address(page);
-		ret = zcache_put(LOCAL_CLIENT, zcache_frontswap_poolid,
-				&oid, iswiz(ind), kva, PAGE_SIZE, 0, 0);
+		ret = zcache_put_page(LOCAL_CLIENT, zcache_frontswap_poolid,
+					&oid, iswiz(ind),
+					page, PAGE_SIZE, false, 0);
 		local_irq_restore(flags);
 	}
+out:
 	return ret;
 }
 
 /* returns 0 if the page was successfully gotten from frontswap, -1 if
  * was not present (should never happen!) */
-static int zcache_frontswap_load(unsigned type, pgoff_t offset,
-				   struct page *page)
+static int zcache_frontswap_get_page(unsigned type, pgoff_t offset,
+					struct page *page)
 {
 	u64 ind64 = (u64)offset;
 	u32 ind = (u32)offset;
 	struct tmem_oid oid = oswiz(type, ind);
-	int ret = -1;
+	size_t size;
+	int ret = -1, get_and_free;
 
-	preempt_disable(); /* FIXME, remove this? */
+	if (frontswap_has_exclusive_gets)
+		get_and_free = 1;
+	else
+		get_and_free = -1;
 	BUG_ON(!PageLocked(page));
 	if (likely(ind64 == ind)) {
-		char *kva = page_address(page);
-		size_t size = PAGE_SIZE;
-
-		ret = zcache_get(LOCAL_CLIENT, zcache_frontswap_poolid,
-					&oid, iswiz(ind), kva, &size, 0, -1);
+		ret = zcache_get_page(LOCAL_CLIENT, zcache_frontswap_poolid,
+					&oid, iswiz(ind),
+					page, &size, false, get_and_free);
+		BUG_ON(ret >= 0 && size != PAGE_SIZE);
 	}
-	preempt_enable(); /* FIXME, remove this? */
 	return ret;
 }
 
@@ -3054,7 +1593,7 @@ static void zcache_frontswap_flush_page(unsigned type, pgoff_t offset)
 	struct tmem_oid oid = oswiz(type, ind);
 
 	if (likely(ind64 == ind))
-		(void)zcache_flush(LOCAL_CLIENT, zcache_frontswap_poolid,
+		(void)zcache_flush_page(LOCAL_CLIENT, zcache_frontswap_poolid,
 					&oid, iswiz(ind));
 }
 
@@ -3076,12 +1615,12 @@ static void zcache_frontswap_init(unsigned ignored)
 	/* a single tmem poolid is used for all frontswap "types" (swapfiles) */
 	if (zcache_frontswap_poolid < 0)
 		zcache_frontswap_poolid =
-				zcache_local_new_pool(TMEM_POOL_PERSIST);
+			zcache_local_new_pool(TMEM_POOL_PERSIST);
 }
 
 static struct frontswap_ops zcache_frontswap_ops = {
-	.store = zcache_frontswap_store,
-	.load = zcache_frontswap_load,
+	.store = zcache_frontswap_put_page,
+	.load = zcache_frontswap_get_page,
 	.invalidate_page = zcache_frontswap_flush_page,
 	.invalidate_area = zcache_frontswap_flush_area,
 	.init = zcache_frontswap_init
@@ -3094,179 +1633,135 @@ struct frontswap_ops zcache_frontswap_register_ops(void)
 
 	return old_ops;
 }
-#endif
 
 /*
- * frontswap selfshrinking
- */
-
-#ifdef CONFIG_FRONTSWAP
-/* In HZ, controls frequency of worker invocation. */
-static unsigned int selfshrink_interval __read_mostly = 5;
-
-static void selfshrink_process(struct work_struct *work);
-static DECLARE_DELAYED_WORK(selfshrink_worker, selfshrink_process);
-
-/* Enable/disable with sysfs. */
-static bool frontswap_selfshrinking __read_mostly;
-
-/* Enable/disable with kernel boot option. */
-static bool use_frontswap_selfshrink __initdata = true;
-
-/*
- * The default values for the following parameters were deemed reasonable
- * by experimentation, may be workload-dependent, and can all be
- * adjusted via sysfs.
- */
-
-/* Control rate for frontswap shrinking. Higher hysteresis is slower. */
-static unsigned int frontswap_hysteresis __read_mostly = 20;
-
-/*
- * Number of selfshrink worker invocations to wait before observing that
- * frontswap selfshrinking should commence. Note that selfshrinking does
- * not use a separate worker thread.
+ * zcache initialization
+ * NOTE FOR NOW zcache or ramster MUST BE PROVIDED AS A KERNEL BOOT PARAMETER
+ * OR NOTHING HAPPENS!
  */
-static unsigned int frontswap_inertia __read_mostly = 3;
 
-/* Countdown to next invocation of frontswap_shrink() */
-static unsigned long frontswap_inertia_counter;
-
-/*
- * Invoked by the selfshrink worker thread, uses current number of pages
- * in frontswap (frontswap_curr_pages()), previous status, and control
- * values (hysteresis and inertia) to determine if frontswap should be
- * shrunk and what the new frontswap size should be.  Note that
- * frontswap_shrink is essentially a partial swapoff that immediately
- * transfers pages from the "swap device" (frontswap) back into kernel
- * RAM; despite the name, frontswap "shrinking" is very different from
- * the "shrinker" interface used by the kernel MM subsystem to reclaim
- * memory.
- */
-static void frontswap_selfshrink(void)
+static int __init enable_zcache(char *s)
 {
-	static unsigned long cur_frontswap_pages;
-	static unsigned long last_frontswap_pages;
-	static unsigned long tgt_frontswap_pages;
-
-	last_frontswap_pages = cur_frontswap_pages;
-	cur_frontswap_pages = frontswap_curr_pages();
-	if (!cur_frontswap_pages ||
-			(cur_frontswap_pages > last_frontswap_pages)) {
-		frontswap_inertia_counter = frontswap_inertia;
-		return;
-	}
-	if (frontswap_inertia_counter && --frontswap_inertia_counter)
-		return;
-	if (cur_frontswap_pages <= frontswap_hysteresis)
-		tgt_frontswap_pages = 0;
-	else
-		tgt_frontswap_pages = cur_frontswap_pages -
-			(cur_frontswap_pages / frontswap_hysteresis);
-	frontswap_shrink(tgt_frontswap_pages);
+	zcache_enabled = 1;
+	return 1;
 }
+__setup("zcache", enable_zcache);
 
-static int __init ramster_nofrontswap_selfshrink_setup(char *s)
+static int __init enable_ramster(char *s)
 {
-	use_frontswap_selfshrink = false;
+	zcache_enabled = 1;
+#ifdef CONFIG_RAMSTER
+	ramster_enabled = 1;
+#endif
 	return 1;
 }
+__setup("ramster", enable_ramster);
 
-__setup("noselfshrink", ramster_nofrontswap_selfshrink_setup);
+/* allow independent dynamic disabling of cleancache and frontswap */
 
-static void selfshrink_process(struct work_struct *work)
+static int __init no_cleancache(char *s)
 {
-	if (frontswap_selfshrinking && frontswap_enabled) {
-		frontswap_selfshrink();
-		schedule_delayed_work(&selfshrink_worker,
-			selfshrink_interval * HZ);
-	}
+	disable_cleancache = 1;
+	return 1;
 }
 
-static int ramster_enabled;
+__setup("nocleancache", no_cleancache);
 
-static int __init ramster_selfshrink_init(void)
+static int __init no_frontswap(char *s)
 {
-	frontswap_selfshrinking = ramster_enabled && use_frontswap_selfshrink;
-	if (frontswap_selfshrinking)
-		pr_info("ramster: Initializing frontswap "
-					"selfshrinking driver.\n");
-	else
-		return -ENODEV;
-
-	schedule_delayed_work(&selfshrink_worker, selfshrink_interval * HZ);
-
-	return 0;
+	disable_frontswap = 1;
+	return 1;
 }
 
-subsys_initcall(ramster_selfshrink_init);
-#endif
+__setup("nofrontswap", no_frontswap);
 
-/*
- * zcache initialization
- * NOTE FOR NOW ramster MUST BE PROVIDED AS A KERNEL BOOT PARAMETER OR
- * NOTHING HAPPENS!
- */
+static int __init no_frontswap_exclusive_gets(char *s)
+{
+	frontswap_has_exclusive_gets = false;
+	return 1;
+}
 
-static int ramster_enabled;
+__setup("nofrontswapexclusivegets", no_frontswap_exclusive_gets);
 
-static int __init enable_ramster(char *s)
+static int __init no_frontswap_ignore_nonactive(char *s)
 {
-	ramster_enabled = 1;
+	disable_frontswap_ignore_nonactive = 1;
 	return 1;
 }
-__setup("ramster", enable_ramster);
 
-/* allow independent dynamic disabling of cleancache and frontswap */
+__setup("nofrontswapignorenonactive", no_frontswap_ignore_nonactive);
 
-static int use_cleancache = 1;
-
-static int __init no_cleancache(char *s)
+static int __init no_cleancache_ignore_nonactive(char *s)
 {
-	pr_info("INIT no_cleancache called\n");
-	use_cleancache = 0;
+	disable_cleancache_ignore_nonactive = 1;
 	return 1;
 }
 
-/*
- * FIXME: need to guarantee this gets checked before zcache_init is called
- * What is the correct way to achieve this?
- */
-early_param("nocleancache", no_cleancache);
-
-static int use_frontswap = 1;
+__setup("nocleancacheignorenonactive", no_cleancache_ignore_nonactive);
 
-static int __init no_frontswap(char *s)
+static int __init enable_zcache_compressor(char *s)
 {
-	pr_info("INIT no_frontswap called\n");
-	use_frontswap = 0;
+	strncpy(zcache_comp_name, s, ZCACHE_COMP_NAME_SZ);
+	zcache_enabled = 1;
 	return 1;
 }
+__setup("zcache=", enable_zcache_compressor);
 
-__setup("nofrontswap", no_frontswap);
 
-static int __init zcache_init(void)
+static int __init zcache_comp_init(void)
 {
 	int ret = 0;
 
-#ifdef CONFIG_SYSFS
-	ret = sysfs_create_group(mm_kobj, &zcache_attr_group);
-	ret = sysfs_create_group(mm_kobj, &ramster_attr_group);
-	if (ret) {
-		pr_err("ramster: can't create sysfs\n");
+	/* check crypto algorithm */
+	if (*zcache_comp_name != '\0') {
+		ret = crypto_has_comp(zcache_comp_name, 0, 0);
+		if (!ret)
+			pr_info("zcache: %s not supported\n",
+					zcache_comp_name);
+	}
+	if (!ret)
+		strcpy(zcache_comp_name, "lzo");
+	ret = crypto_has_comp(zcache_comp_name, 0, 0);
+	if (!ret) {
+		ret = 1;
 		goto out;
 	}
-#endif /* CONFIG_SYSFS */
-#if defined(CONFIG_CLEANCACHE) || defined(CONFIG_FRONTSWAP)
+	pr_info("zcache: using %s compressor\n", zcache_comp_name);
+
+	/* alloc percpu transforms */
+	ret = 0;
+	zcache_comp_pcpu_tfms = alloc_percpu(struct crypto_comp *);
+	if (!zcache_comp_pcpu_tfms)
+		ret = 1;
+out:
+	return ret;
+}
+
+static int __init zcache_init(void)
+{
+	int ret = 0;
+
 	if (ramster_enabled) {
+		namestr = "ramster";
+		ramster_register_pamops(&zcache_pamops);
+	}
+#ifdef CONFIG_DEBUG_FS
+	zcache_debugfs_init();
+#endif
+	if (zcache_enabled) {
 		unsigned int cpu;
 
-		(void)r2net_register_handlers();
 		tmem_register_hostops(&zcache_hostops);
 		tmem_register_pamops(&zcache_pamops);
 		ret = register_cpu_notifier(&zcache_cpu_notifier_block);
 		if (ret) {
-			pr_err("ramster: can't register cpu notifier\n");
+			pr_err("%s: can't register cpu notifier\n", namestr);
+			goto out;
+		}
+		ret = zcache_comp_init();
+		if (ret) {
+			pr_err("%s: compressor initialization failed\n",
+				namestr);
 			goto out;
 		}
 		for_each_online_cpu(cpu) {
@@ -3279,42 +1774,47 @@ static int __init zcache_init(void)
 				sizeof(struct tmem_objnode), 0, 0, NULL);
 	zcache_obj_cache = kmem_cache_create("zcache_obj",
 				sizeof(struct tmem_obj), 0, 0, NULL);
-	ramster_flnode_cache = kmem_cache_create("ramster_flnode",
-				sizeof(struct flushlist_node), 0, 0, NULL);
-#endif
-#ifdef CONFIG_CLEANCACHE
-	pr_info("INIT ramster_enabled=%d use_cleancache=%d\n",
-					ramster_enabled, use_cleancache);
-	if (ramster_enabled && use_cleancache) {
+	ret = zcache_new_client(LOCAL_CLIENT);
+	if (ret) {
+		pr_err("%s: can't create client\n", namestr);
+		goto out;
+	}
+	zbud_init();
+	if (zcache_enabled && !disable_cleancache) {
 		struct cleancache_ops old_ops;
 
-		zbud_init();
 		register_shrinker(&zcache_shrinker);
 		old_ops = zcache_cleancache_register_ops();
-		pr_info("ramster: cleancache enabled using kernel "
-			"transcendent memory and compression buddies\n");
+		pr_info("%s: cleancache enabled using kernel transcendent "
+			"memory and compression buddies\n", namestr);
+#ifdef ZCACHE_DEBUG
+		pr_info("%s: cleancache: ignorenonactive = %d\n",
+			namestr, !disable_cleancache_ignore_nonactive);
+#endif
 		if (old_ops.init_fs != NULL)
-			pr_warning("ramster: cleancache_ops overridden");
+			pr_warn("%s: cleancache_ops overridden\n", namestr);
 	}
-#endif
-#ifdef CONFIG_FRONTSWAP
-	pr_info("INIT ramster_enabled=%d use_frontswap=%d\n",
-					ramster_enabled, use_frontswap);
-	if (ramster_enabled && use_frontswap) {
+	if (zcache_enabled && !disable_frontswap) {
 		struct frontswap_ops old_ops;
 
-		zcache_new_client(LOCAL_CLIENT);
 		old_ops = zcache_frontswap_register_ops();
-		pr_info("ramster: frontswap enabled using kernel "
-			"transcendent memory and xvmalloc\n");
+		if (frontswap_has_exclusive_gets)
+			frontswap_tmem_exclusive_gets(true);
+		pr_info("%s: frontswap enabled using kernel transcendent "
+			"memory and compression buddies\n", namestr);
+#ifdef ZCACHE_DEBUG
+		pr_info("%s: frontswap: excl gets = %d active only = %d\n",
+			namestr, frontswap_has_exclusive_gets,
+			!disable_frontswap_ignore_nonactive);
+#endif
 		if (old_ops.init != NULL)
-			pr_warning("ramster: frontswap_ops overridden");
+			pr_warn("%s: frontswap_ops overridden\n", namestr);
 	}
-	if (ramster_enabled && (use_frontswap || use_cleancache))
-		ramster_remotify_init();
-#endif
+	if (ramster_enabled)
+		ramster_init(!disable_cleancache, !disable_frontswap,
+				frontswap_has_exclusive_gets);
 out:
 	return ret;
 }
 
-module_init(zcache_init)
+late_initcall(zcache_init);
diff --git a/drivers/staging/ramster/zcache.h b/drivers/staging/ramster/zcache.h
index 250b121c22e..81722b33b08 100644
--- a/drivers/staging/ramster/zcache.h
+++ b/drivers/staging/ramster/zcache.h
@@ -1,22 +1,53 @@
+
 /*
  * zcache.h
  *
- * External zcache functions
- *
- * Copyright (c) 2009-2012, Dan Magenheimer, Oracle Corp.
+ * Copyright (c) 2012, Dan Magenheimer, Oracle Corp.
  */
 
 #ifndef _ZCACHE_H_
 #define _ZCACHE_H_
 
-extern int zcache_put(int, int, struct tmem_oid *, uint32_t,
-			char *, size_t, bool, int);
-extern int zcache_autocreate_pool(int, int, bool);
-extern int zcache_get(int, int, struct tmem_oid *, uint32_t,
-			char *, size_t *, bool, int);
-extern int zcache_flush(int, int, struct tmem_oid *, uint32_t);
+struct zcache_preload {
+	struct tmem_obj *obj;
+	struct tmem_objnode *objnodes[OBJNODE_TREE_MAX_PATH];
+};
+
+struct tmem_pool;
+
+#define MAX_POOLS_PER_CLIENT 16
+
+#define MAX_CLIENTS 16
+#define LOCAL_CLIENT ((uint16_t)-1)
+
+struct zcache_client {
+	struct tmem_pool *tmem_pools[MAX_POOLS_PER_CLIENT];
+	bool allocated;
+	atomic_t refcount;
+};
+
+extern struct tmem_pool *zcache_get_pool_by_id(uint16_t cli_id,
+							uint16_t poolid);
+extern void zcache_put_pool(struct tmem_pool *pool);
+
+extern int zcache_put_page(int, int, struct tmem_oid *,
+				uint32_t, void *,
+				unsigned int, bool, int);
+extern int zcache_get_page(int, int, struct tmem_oid *, uint32_t,
+				void *, size_t *, bool, int);
+extern int zcache_flush_page(int, int, struct tmem_oid *, uint32_t);
 extern int zcache_flush_object(int, int, struct tmem_oid *);
-extern int zcache_localify(int, struct tmem_oid *, uint32_t,
-			char *, size_t, void *);
+extern void zcache_decompress_to_page(char *, unsigned int, struct page *);
+
+#ifdef CONFIG_RAMSTER
+extern void *zcache_pampd_create(char *, unsigned int, bool, int,
+				struct tmem_handle *);
+int zcache_autocreate_pool(unsigned int cli_id, unsigned int pool_id, bool eph);
+#endif
+
+#define MAX_POOLS_PER_CLIENT 16
+
+#define MAX_CLIENTS 16
+#define LOCAL_CLIENT ((uint16_t)-1)
 
-#endif /* _ZCACHE_H */
+#endif /* _ZCACHE_H_ */
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211.h b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
index b94c48b2930..5f5a30223d5 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
@@ -1094,7 +1094,7 @@ struct ieee80211_device {
 
 	int (*reset_port)(struct net_device *dev);
 
-	/* Softmac-generated frames (mamagement) are TXed via this
+	/* Softmac-generated frames (management) are TXed via this
 	 * callback if the flag IEEE_SOFTMAC_SINGLE_QUEUE is
 	 * not set. As some cards may have different HW queues that
 	 * one might want to use for data and management frames
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index 8173240dcf7..00f9af06aca 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <asm/uaccess.h>
+#include <linux/etherdevice.h>
 
 #include "dot11d.h"
 u8 rsn_authen_cipher_suite[16][4] = {
@@ -2110,13 +2111,7 @@ void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
 inline void ieee80211_randomize_cell(struct ieee80211_device *ieee)
 {
 
-	get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
-
-	/* an IBSS cell address must have the two less significant
-	 * bits of the first byte = 2
-	 */
-	ieee->current_network.bssid[0] &= ~0x01;
-	ieee->current_network.bssid[0] |= 0x02;
+	random_ether_addr(ieee->current_network.bssid);
 }
 
 /* called in user context only */
@@ -2808,9 +2803,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 			       param->u.crypt.key_len);
 		return -EINVAL;
 	}
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= WEP_KEYS)
 			return -EINVAL;
 		crypt = &ieee->crypt[param->u.crypt.idx];
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c
index 5d204906baf..1ef8fd61273 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac_wx.c
@@ -14,6 +14,8 @@
  */
 
 
+#include <linux/etherdevice.h>
+
 #include "ieee80211.h"
 
 /* FIXME: add A freqs */
@@ -131,7 +133,6 @@ int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
 {
 
 	int ret = 0;
-	u8 zero[] = {0,0,0,0,0,0};
 	unsigned long flags;
 
 	short ifup = ieee->proto_started;//dev->flags & IFF_UP;
@@ -161,7 +162,7 @@ int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
 	spin_lock_irqsave(&ieee->lock, flags);
 
 	memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
-	ieee->wap_set = memcmp(temp->sa_data, zero,ETH_ALEN)!=0;
+	ieee->wap_set = !is_zero_ether_addr(temp->sa_data);
 	//printk(" %x:%x:%x:%x:%x:%x\n", ieee->current_network.bssid[0],ieee->current_network.bssid[1],ieee->current_network.bssid[2],ieee->current_network.bssid[3],ieee->current_network.bssid[4],ieee->current_network.bssid[5]);
 
 	spin_unlock_irqrestore(&ieee->lock, flags);
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index fd22b75aea4..20e5fb58f52 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -2377,7 +2377,7 @@ void rtl8180_wmm_param_update(struct work_struct *work)
 				u8		u1bAIFS;
 				u32		u4bAcParam;
 				pAcParam = (PAC_PARAM)(&AcParam);
-				/* Retrieve paramters to update. */
+				/* Retrieve parameters to update. */
 				u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * (((mode&IEEE_G) == IEEE_G) ? 9 : 20) + aSifsTime;
 				u4bAcParam = ((((u32)(pAcParam->f.TXOPLimit))<<AC_PARAM_TXOP_LIMIT_OFFSET)|
 					      (((u32)(pAcParam->f.Ecw.f.ECWmax))<<AC_PARAM_ECW_MAX_OFFSET)|
@@ -2413,7 +2413,7 @@ void rtl8180_wmm_param_update(struct work_struct *work)
 			u8		u1bAIFS;
 			u32		u4bAcParam;
 
-			/* Retrieve paramters to update. */
+			/* Retrieve parameters to update. */
 			eACI = pAcParam->f.AciAifsn.f.ACI;
 			/* Mode G/A: slotTimeTimer = 9; Mode B: 20 */
 			u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * (((mode&IEEE_G) == IEEE_G) ? 9 : 20) + aSifsTime;
diff --git a/drivers/staging/rtl8187se/r8180_hw.h b/drivers/staging/rtl8187se/r8180_hw.h
index 3fca144a56a..533938123a9 100644
--- a/drivers/staging/rtl8187se/r8180_hw.h
+++ b/drivers/staging/rtl8187se/r8180_hw.h
@@ -554,11 +554,16 @@
 /* by amy for power save		*/
 /* by amy for antenna			*/
 #define EEPROM_SW_REVD_OFFSET 0x3f
-/*  BIT[8-9] is for SW Antenna Diversity. Only the value EEPROM_SW_AD_ENABLE means enable, other values are diable.					*/
+
+/*  BIT[8-9] is for SW Antenna Diversity. 
+ *  Only the value EEPROM_SW_AD_ENABLE means enable, other values are disable.
+ */
 #define EEPROM_SW_AD_MASK			0x0300
 #define EEPROM_SW_AD_ENABLE			0x0100
 
-/* BIT[10-11] determine if Antenna 1 is the Default Antenna. Only the value EEPROM_DEF_ANT_1 means TRUE, other values are FALSE.	*/
+/* BIT[10-11] determine if Antenna 1 is the Default Antenna.
+ * Only the value EEPROM_DEF_ANT_1 means TRUE, other values are FALSE.	
+ */
 #define EEPROM_DEF_ANT_MASK			0x0C00
 #define EEPROM_DEF_ANT_1			0x0400
 /*by amy for antenna																				*/
diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 914495783c0..bf343199bd2 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -1008,7 +1008,7 @@ void ActUpdateChannelAccessSetting(struct net_device *dev,
 				u8		u1bAIFS;
 				u32		u4bAcParam;
 
-				/*  Retrieve paramters to update. */
+				/*  Retrieve parameters to update. */
 				eACI = pAcParam->f.AciAifsn.f.ACI;
 				u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * ChnlAccessSetting->SlotTimeTimer + aSifsTime;
 				u4bAcParam = ((((u32)(pAcParam->f.TXOPLimit)) << AC_PARAM_TXOP_LIMIT_OFFSET)	|
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
index b526fa42867..dd2a96bfcc0 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
@@ -265,10 +265,11 @@ bool init_firmware(struct net_device *dev)
 			case FW_SOURCE_IMG_FILE:
 			{
 				if (pfirmware->firmware_buf_size[init_step] == 0) {
-					const char *fw_name[3] = { "RTL8192E/boot.img",
-							   "RTL8192E/main.img",
-							   "RTL8192E/data.img"
-							 };
+					const char *fw_name[3] = {
+							RTL8192E_BOOT_IMG_FW,
+							RTL8192E_MAIN_IMG_FW,
+							RTL8192E_DATA_IMG_FW
+					};
 					const struct firmware	*fw_entry;
 					int rc;
 					rc = request_firmware(&fw_entry,
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h
index caa87883310..06d6abc8345 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h
@@ -23,6 +23,10 @@
 
 #define GET_COMMAND_PACKET_FRAG_THRESHOLD(v)	(4*(v/4) - 8)
 
+#define RTL8192E_BOOT_IMG_FW	"RTL8192E/boot.img"
+#define RTL8192E_MAIN_IMG_FW	"RTL8192E/main.img"
+#define RTL8192E_DATA_IMG_FW	"RTL8192E/data.img"
+
 enum firmware_init_step {
 	FW_INIT_STEP0_BOOT = 0,
 	FW_INIT_STEP1_MAIN = 1,
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 4f602b227b5..81134d312ee 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -734,8 +734,7 @@ static void rtl8192_prepare_beacon(struct r8192_priv *priv)
 
 	ring = &priv->tx_ring[BEACON_QUEUE];
 	pskb = __skb_dequeue(&ring->queue);
-	if (pskb)
-		kfree_skb(pskb);
+	kfree_skb(pskb);
 
 	pnewskb = rtllib_get_beacon(priv->rtllib);
 	if (!pnewskb)
@@ -3125,6 +3124,9 @@ MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_VERSION(DRV_VERSION);
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(RTL8192E_BOOT_IMG_FW);
+MODULE_FIRMWARE(RTL8192E_MAIN_IMG_FW);
+MODULE_FIRMWARE(RTL8192E_DATA_IMG_FW);
 
 module_param(ifname, charp, S_IRUGO|S_IWUSR);
 module_param(hwwep, int, S_IRUGO|S_IWUSR);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index 481b1e4d491..1853665764a 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -202,7 +202,7 @@ static void dm_check_ac_dc_power(struct net_device *dev)
 
 	if (priv->ResetProgress == RESET_TYPE_SILENT) {
 		RT_TRACE((COMP_INIT | COMP_POWER | COMP_RF),
-			 "GPIOChangeRFWorkItemCallBack(): Silent Reseting!!!!!!!\n");
+			 "GPIOChangeRFWorkItemCallBack(): Silent Reset!!!!!!!\n");
 		return;
 	}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
index ddadcc3e4e7..5abbee37cdc 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
@@ -31,12 +31,10 @@ static void rtl8192_parse_pci_configuration(struct pci_dev *pdev,
 	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
 
 	u8 tmp;
-	int pos;
-	u8 LinkCtrlReg;
+	u16 LinkCtrlReg;
 
-	pos = pci_find_capability(priv->pdev, PCI_CAP_ID_EXP);
-	pci_read_config_byte(priv->pdev, pos + PCI_EXP_LNKCTL, &LinkCtrlReg);
-	priv->NdisAdapter.LinkCtrlReg = LinkCtrlReg;
+	pcie_capability_read_word(priv->pdev, PCI_EXP_LNKCTL, &LinkCtrlReg);
+	priv->NdisAdapter.LinkCtrlReg = (u8)LinkCtrlReg;
 
 	RT_TRACE(COMP_INIT, "Link Control Register =%x\n",
 		 priv->NdisAdapter.LinkCtrlReg);
diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index d7460ae3a76..9ac8d8ea4ae 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -2397,12 +2397,12 @@ struct rtllib_device {
 				 struct rtllib_network *network, u16 type);
 	int (*is_qos_active)(struct net_device *dev, struct sk_buff *skb);
 
-	/* Softmac-generated frames (mamagement) are TXed via this
+	/* Softmac-generated frames (management) are TXed via this
 	 * callback if the flag IEEE_SOFTMAC_SINGLE_QUEUE is
 	 * not set. As some cards may have different HW queues that
 	 * one might want to use for data and management frames
 	 * the option to have two callbacks might be useful.
-	 * This fucntion can't sleep.
+	 * This function can't sleep.
 	 */
 	int (*softmac_hard_start_xmit)(struct sk_buff *skb,
 			       struct net_device *dev);
@@ -2441,9 +2441,9 @@ struct rtllib_device {
 	 * it is called in a work_queue when switching to ad-hoc mode
 	 * or in behalf of iwlist scan when the card is associated
 	 * and root user ask for a scan.
-	 * the fucntion stop_scan should stop both the syncro and
+	 * the function stop_scan should stop both the syncro and
 	 * background scanning and can sleep.
-	 * The fucntion start_scan should initiate the background
+	 * The function start_scan should initiate the background
 	 * scanning and can't sleep.
 	 */
 	void (*scan_syncro)(struct net_device *dev);
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index a21b4d91a59..4feecec8609 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -19,6 +19,7 @@
 #include <linux/random.h>
 #include <linux/delay.h>
 #include <linux/uaccess.h>
+#include <linux/etherdevice.h>
 #include "dot11d.h"
 
 short rtllib_is_54g(struct rtllib_network *net)
@@ -266,7 +267,7 @@ inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
 		else
 			ieee->seq_ctrl[0]++;
 
-		/* check wether the managed packet queued greater than 5 */
+		/* check whether the managed packet queued greater than 5 */
 		if (!ieee->check_nic_enough_desc(ieee->dev, tcb_desc->queue_index) ||
 		    (skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0) ||
 		    (ieee->queue_stop)) {
@@ -1687,7 +1688,7 @@ inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
 		 * if the network does broadcast and the user did set essid
 		 * check if essid match
 		 * if the ap is not set, check that the user set the bssid
-		 * and the network does bradcast and that those two bssid match
+		 * and the network does broadcast and that those two bssid match
 		 */
 		if ((apset && apmatch &&
 		   ((ssidset && ssidbroad && ssidmatch) ||
@@ -1843,7 +1844,7 @@ static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
 
 	bssid_match =
 	  (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0) &&
-	  (memcmp(header->addr3, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0);
+	  (!is_broadcast_ether_addr(header->addr3));
 	if (bssid_match)
 		return -1;
 
@@ -2442,7 +2443,7 @@ inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
 	return 0;
 }
 
-/* following are for a simplier TX queue management.
+/* following are for a simpler TX queue management.
  * Instead of using netif_[stop/wake]_queue the driver
  * will use these two functions (plus a reset one), that
  * will internally use the kernel netif_* and takes
@@ -2619,13 +2620,7 @@ void rtllib_wake_all_queues(struct rtllib_device *ieee)
 inline void rtllib_randomize_cell(struct rtllib_device *ieee)
 {
 
-	get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
-
-	/* an IBSS cell address must have the two less significant
-	 * bits of the first byte = 2
-	 */
-	ieee->current_network.bssid[0] &= ~0x01;
-	ieee->current_network.bssid[0] |= 0x02;
+	random_ether_addr(ieee->current_network.bssid);
 }
 
 /* called in user context only */
@@ -3361,9 +3356,7 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 			       param->u.crypt.key_len);
 		return -EINVAL;
 	}
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= NUM_WEP_KEYS)
 			return -EINVAL;
 		crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
@@ -3411,8 +3404,7 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 
 		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
-		new_crypt = (struct lib80211_crypt_data *)
-			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 1bb6b52e0f2..740cf85e9d5 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -14,6 +14,8 @@
  */
 
 
+#include <linux/etherdevice.h>
+
 #include "rtllib.h"
 #include "dot11d.h"
 /* FIXME: add A freqs */
@@ -137,7 +139,6 @@ int rtllib_wx_set_wap(struct rtllib_device *ieee,
 {
 
 	int ret = 0;
-	u8 zero[] = {0, 0, 0, 0, 0, 0};
 	unsigned long flags;
 
 	short ifup = ieee->proto_started;
@@ -157,7 +158,7 @@ int rtllib_wx_set_wap(struct rtllib_device *ieee,
 		goto out;
 	}
 
-	if (memcmp(temp->sa_data, zero, ETH_ALEN) == 0) {
+	if (is_zero_ether_addr(temp->sa_data)) {
 		spin_lock_irqsave(&ieee->lock, flags);
 		memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
 		ieee->wap_set = 0;
@@ -177,7 +178,7 @@ int rtllib_wx_set_wap(struct rtllib_device *ieee,
 
 	ieee->cannot_notify = false;
 	memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
-	ieee->wap_set = (memcmp(temp->sa_data, zero, ETH_ALEN) != 0);
+	ieee->wap_set = !is_zero_ether_addr(temp->sa_data);
 
 	spin_unlock_irqrestore(&ieee->lock, flags);
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
index 1c0a1db6420..13f45c3125c 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
@@ -2114,7 +2114,7 @@ struct ieee80211_device {
                                   struct ieee80211_network * network, u16 type);
         int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
 
-	/* Softmac-generated frames (mamagement) are TXed via this
+	/* Softmac-generated frames (management) are TXed via this
 	 * callback if the flag IEEE_SOFTMAC_SINGLE_QUEUE is
 	 * not set. As some cards may have different HW queues that
 	 * one might want to use for data and management frames
@@ -2192,7 +2192,7 @@ struct ieee80211_device {
 	int (*handle_assoc_response) (struct net_device * dev, struct ieee80211_assoc_response_frame * resp, struct ieee80211_network * network);
 
 
-	/* check whether Tx hw resouce available */
+	/* check whether Tx hw resource available */
 	short (*check_nic_enough_desc)(struct net_device *dev, int queue_index);
 	//added by wb for HT related
 //	void (*SwChnlByTimerHandler)(struct net_device *dev, int channel);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index f6ff8cff313..7a0707810fd 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -20,6 +20,8 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <asm/uaccess.h>
+#include <linux/etherdevice.h>
+
 #include "dot11d.h"
 
 u8 rsn_authen_cipher_suite[16][4] = {
@@ -269,7 +271,7 @@ inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee
 		else
 			ieee->seq_ctrl[0]++;
 
-		/* check wether the managed packet queued greater than 5 */
+		/* check whether the managed packet queued greater than 5 */
 		if(!ieee->check_nic_enough_desc(ieee->dev,tcb_desc->queue_index)||\
 				(skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0)||\
 				(ieee->queue_stop) ) {
@@ -1448,7 +1450,7 @@ inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee
 			( apset && apmatch &&
 				((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) ) ||
 			/* if the ap is not set, check that the user set the bssid
-			 * and the network does bradcast and that those two bssid matches
+			 * and the network does broadcast and that those two bssid matches
 			 */
 			(!apset && ssidset && ssidbroad && ssidmatch)
 			){
@@ -2286,13 +2288,7 @@ void ieee80211_stop_queue(struct ieee80211_device *ieee)
 inline void ieee80211_randomize_cell(struct ieee80211_device *ieee)
 {
 
-	get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
-
-	/* an IBSS cell address must have the two less significant
-	 * bits of the first byte = 2
-	 */
-	ieee->current_network.bssid[0] &= ~0x01;
-	ieee->current_network.bssid[0] |= 0x02;
+	random_ether_addr(ieee->current_network.bssid);
 }
 
 /* called in user context only */
@@ -2520,7 +2516,7 @@ void ieee80211_associate_retry_wq(struct work_struct *work)
 
 	/* until we do not set the state to IEEE80211_NOLINK
 	* there are no possibility to have someone else trying
-	* to start an association procdure (we get here with
+	* to start an association procedure (we get here with
 	* ieee->state = IEEE80211_ASSOCIATING).
 	* When we set the state to IEEE80211_NOLINK it is possible
 	* that the RX path run an attempt to associate, but
@@ -2969,9 +2965,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 			       param->u.crypt.key_len);
 		return -EINVAL;
 	}
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= WEP_KEYS)
 			return -EINVAL;
 		crypt = &ieee->crypt[param->u.crypt.idx];
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c
index cb5a3c32974..421da8a0769 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c
@@ -14,6 +14,8 @@
  */
 
 
+#include <linux/etherdevice.h>
+
 #include "ieee80211.h"
 #include "dot11d.h"
 /* FIXME: add A freqs */
@@ -136,7 +138,6 @@ int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
 {
 
 	int ret = 0;
-	u8 zero[] = {0,0,0,0,0,0};
 	unsigned long flags;
 
 	short ifup = ieee->proto_started;//dev->flags & IFF_UP;
@@ -165,7 +166,7 @@ int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
 	spin_lock_irqsave(&ieee->lock, flags);
 
 	memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
-	ieee->wap_set = memcmp(temp->sa_data, zero,ETH_ALEN)!=0;
+	ieee->wap_set = !is_zero_ether_addr(temp->sa_data);
 
 	spin_unlock_irqrestore(&ieee->lock, flags);
 
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
index 27d083a70eb..1ebea3daea2 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
@@ -1,6 +1,6 @@
 /********************************************************************************************************************************
  * This file is created to process BA Action Frame. According to 802.11 spec, there are 3 BA action types at all. And as BA is
- * related to TS, this part need some struture defined in QOS side code. Also TX RX is going to be resturctured, so how to send
+ * related to TS, this part need some structure defined in QOS side code. Also TX RX is going to be resturctured, so how to send
  * ADDBAREQ ADDBARSP and DELBA packet is still on consideration. Temporarily use MANAGE QUEUE instead of Normal Queue.
  * WB 2008-05-27
  * *****************************************************************************************************************************/
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
index 0b1a1fc0939..a60b39cdb47 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
@@ -15,7 +15,7 @@
 #define HT_OPMODE_MIXED			3
 
 //
-// MIMO Power Save Setings
+// MIMO Power Save Settings
 //
 #define MIMO_PS_STATIC				0
 #define MIMO_PS_DYNAMIC			1
@@ -242,7 +242,7 @@ typedef struct _RT_HIGH_THROUGHPUT{
 	u8				bEnableHT;
 	u8				bCurrentHTSupport;
 
-	u8				bRegBW40MHz;				// Tx 40MHz channel capablity
+	u8				bRegBW40MHz;				// Tx 40MHz channel capability
 	u8				bCurBW40MHz;				// Tx 40MHz channel capability
 
 	u8				bRegShortGI40MHz;			// Tx Short GI for 40Mhz
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
index e88a839b2a9..ebb523904ed 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
@@ -912,7 +912,7 @@ u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperate
 
 	u8 i=0;
 
-	// filter out operational rate set not supported by AP, the lenth of it is 16
+	// filter out operational rate set not supported by AP, the length of it is 16
 	for(i=0;i<=15;i++){
 		pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
 	}
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 5981d665832..5a2fab9fa77 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2232,24 +2232,15 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 	memset(priv->rx_urb, 0, sizeof(struct urb*) * MAX_RX_URB);
 	priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *),
 				 GFP_KERNEL);
-	if (priv->pp_rxskb == NULL)
-		goto destroy;
-
-	goto _middle;
-
-
-destroy:
-	kfree(priv->pp_rxskb);
-	kfree(priv->rx_urb);
-
-	priv->pp_rxskb = NULL;
-	priv->rx_urb = NULL;
-
-	DMESGE("Endpoint Alloc Failure");
-	return -ENOMEM;
+	if (!priv->pp_rxskb) {
+		kfree(priv->rx_urb);
 
+		priv->pp_rxskb = NULL;
+		priv->rx_urb = NULL;
 
-_middle:
+		DMESGE("Endpoint Alloc Failure");
+		return -ENOMEM;
+	}
 
 	printk("End of initendpoints\n");
 	return 0;
@@ -2808,9 +2799,7 @@ static void rtl8192_init_priv_variable(struct net_device* dev)
 		(priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT:0);
 
 	priv->AcmControl = 0;
-	priv->pFirmware = kmalloc(sizeof(rt_firmware), GFP_KERNEL);
-	if (priv->pFirmware)
-	memset(priv->pFirmware, 0, sizeof(rt_firmware));
+	priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL);
 
 	/* rx related queue */
 	skb_queue_head_init(&priv->rx_queue);
diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index e07f8b17a0d..6c1d05e1e82 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -16,7 +16,7 @@
 #define HT_OPMODE_MIXED			3
 
 //
-// MIMO Power Save Setings
+// MIMO Power Save Settings
 //
 #define MIMO_PS_STATIC				0
 #define MIMO_PS_DYNAMIC			1
diff --git a/drivers/staging/rtl8192u/r819xU_phyreg.h b/drivers/staging/rtl8192u/r819xU_phyreg.h
index 50f24dce8b1..cca34c05f6a 100644
--- a/drivers/staging/rtl8192u/r819xU_phyreg.h
+++ b/drivers/staging/rtl8192u/r819xU_phyreg.h
@@ -443,7 +443,7 @@
 #define bCCKRxIG                  			0x7f00
 #define bCCKLNAPolarity           		0x800000
 #define bCCKRx1stGain             		0x7f0000
-#define bCCKRFExtend              		0x20000000 //CCK Rx inital gain polarity
+#define bCCKRFExtend              		0x20000000 //CCK Rx initial gain polarity
 #define bCCKRxAGCSatLevel        		0x1f000000
 #define bCCKRxAGCSatCount       		0xe0
 #define bCCKRxRFSettle            		0x1f       //AGCsamp_dly
diff --git a/drivers/staging/rtl8712/drv_types.h b/drivers/staging/rtl8712/drv_types.h
index 62b55663c63..a074fe81016 100644
--- a/drivers/staging/rtl8712/drv_types.h
+++ b/drivers/staging/rtl8712/drv_types.h
@@ -70,9 +70,7 @@ struct	qos_priv	{
 #include "rtl871x_event.h"
 #include "rtl871x_led.h"
 
-#define SPEC_DEV_ID_NONE BIT(0)
 #define SPEC_DEV_ID_DISABLE_HT BIT(1)
-#define SPEC_DEV_ID_ENABLE_PS BIT(2)
 
 struct specific_device_id {
 	u32		flags;
@@ -127,13 +125,6 @@ struct registry_priv {
 	u8 wifi_test;
 };
 
-/* For registry parameters */
-#define RGTRY_OFT(field) ((addr_t)FIELD_OFFSET(struct registry_priv, field))
-#define RGTRY_SZ(field)   sizeof(((struct registry_priv *)0)->field)
-#define BSSID_OFT(field) ((addr_t)FIELD_OFFSET(struct ndis_wlan_bssid_ex, \
-			 field))
-#define BSSID_SZ(field)   sizeof(((struct ndis_wlan_bssid_ex *)0)->field)
-
 struct dvobj_priv {
 	struct _adapter *padapter;
 	u32 nr_endpoint;
diff --git a/drivers/staging/rtl8712/ethernet.h b/drivers/staging/rtl8712/ethernet.h
index 882d61b2e95..90954203776 100644
--- a/drivers/staging/rtl8712/ethernet.h
+++ b/drivers/staging/rtl8712/ethernet.h
@@ -35,14 +35,6 @@
 
 /*!< Is Multicast Address? */
 #define RT_ETH_IS_MULTICAST(_pAddr)	((((u8 *)(_pAddr))[0]&0x01) != 0)
-/*!< Is Broadcast Address? */
-#define RT_ETH_IS_BROADCAST(_pAddr)	(				\
-			((u8 *)(_pAddr))[0] == 0xff	&&		\
-			((u8 *)(_pAddr))[1] == 0xff	&&		\
-			((u8 *)(_pAddr))[2] == 0xff	&&		\
-			((u8 *)(_pAddr))[3] == 0xff	&&		\
-			((u8 *)(_pAddr))[4] == 0xff	&&		\
-			((u8 *)(_pAddr))[5] == 0xff)
 
 #endif /* #ifndef __INC_ETHERNET_H */
 
diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 448f00dd68f..e00f7918d26 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -96,7 +96,7 @@ static char *initmac;
 /* if wifi_test = 1, driver will disable the turbo mode and pass it to
  * firmware private.
  */
-static int wifi_test = 0;
+static int wifi_test;
 
 module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
 module_param(wifi_test, int, 0644);
diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c
index 0e26d5f6cf2..495ee1205e0 100644
--- a/drivers/staging/rtl8712/recv_linux.c
+++ b/drivers/staging/rtl8712/recv_linux.c
@@ -117,13 +117,8 @@ void r8712_recv_indicatepkt(struct _adapter *padapter,
 	if (skb == NULL)
 		goto _recv_indicatepkt_drop;
 	skb->data = precv_frame->u.hdr.rx_data;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->tail = (sk_buff_data_t)(precv_frame->u.hdr.rx_tail -
-		     precv_frame->u.hdr.rx_head);
-#else
-	skb->tail = (sk_buff_data_t)precv_frame->u.hdr.rx_tail;
-#endif
 	skb->len = precv_frame->u.hdr.len;
+	skb_set_tail_pointer(skb, skb->len);
 	if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1))
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	else
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index 8e82ce2fee3..c76732cdb18 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -374,6 +374,8 @@ static int amsdu_to_msdu(struct _adapter *padapter, union recv_frame *prframe)
 		a_len -= ETH_HLEN;
 		/* Allocate new skb for releasing to upper layer */
 		sub_skb = dev_alloc_skb(nSubframe_Length + 12);
+		if (!sub_skb)
+			break;
 		skb_reserve(sub_skb, 12);
 		data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length);
 		memcpy(data_ptr, pdata, nSubframe_Length);
@@ -1094,6 +1096,8 @@ static int recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb)
 			precvframe->u.hdr.rx_end = pkt_copy->data + alloc_sz;
 		} else {
 			precvframe->u.hdr.pkt = skb_clone(pskb, GFP_ATOMIC);
+			if (!precvframe->u.hdr.pkt)
+				return _FAIL;
 			precvframe->u.hdr.rx_head = pbuf;
 			precvframe->u.hdr.rx_data = pbuf;
 			precvframe->u.hdr.rx_tail = pbuf;
@@ -1127,6 +1131,9 @@ static void recv_tasklet(void *priv)
 		recvbuf2recvframe(padapter, pskb);
 		skb_reset_tail_pointer(pskb);
 		pskb->len = 0;
-		skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
+		if (!skb_cloned(pskb))
+			skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
+		else
+			consume_skb(pskb);
 	}
 }
diff --git a/drivers/staging/rtl8712/rtl8712_recv.h b/drivers/staging/rtl8712/rtl8712_recv.h
index 8efbd1fa035..fd9e3fc4c22 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.h
+++ b/drivers/staging/rtl8712/rtl8712_recv.h
@@ -41,7 +41,7 @@
 #define RECV_BLK_SZ 512
 #define RECV_BLK_CNT 16
 #define RECV_BLK_TH RECV_BLK_CNT
-#define MAX_RECVBUF_SZ (30720) /* 30K */
+#define MAX_RECVBUF_SZ 9100
 #define RECVBUFF_ALIGN_SZ 512
 #define RSVD_ROOM_SZ (0)
 /*These definition is used for Rx packet reordering.*/
diff --git a/drivers/staging/rtl8712/rtl8712_xmit.c b/drivers/staging/rtl8712/rtl8712_xmit.c
index 3d23514c022..4e3f09420c1 100644
--- a/drivers/staging/rtl8712/rtl8712_xmit.c
+++ b/drivers/staging/rtl8712/rtl8712_xmit.c
@@ -376,7 +376,7 @@ u8 r8712_dump_aggr_xframe(struct xmit_buf *pxmitbuf,
 {
 	struct _adapter *padapter = pxmitframe->padapter;
 	struct dvobj_priv *pdvobj = (struct dvobj_priv *) &padapter->dvobjpriv;
-	struct tx_desc * ptxdesc = (struct tx_desc *)pxmitbuf->pbuf;
+	struct tx_desc *ptxdesc = (struct tx_desc *)pxmitbuf->pbuf;
 	struct cmd_hdr *pcmd_hdr = (struct cmd_hdr *)
 		(pxmitbuf->pbuf + TXDESC_SIZE);
 	u16 total_length = (u16) (ptxdesc->txdw0 & 0xffff);
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index 35e781fca4a..c9a6a7fbb89 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -407,9 +407,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
 	if (param_len != (u32)((u8 *) param->u.crypt.key - (u8 *)param) +
 			 param->u.crypt.key_len)
 		return -EINVAL;
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= WEP_KEYS) {
 			/* for large key indices, set the default (0) */
 			param->u.crypt.idx = 0;
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_set.c b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
index f352b32355a..d3ab24e34e3 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_set.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
@@ -131,10 +131,7 @@ u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
 	u8 status = true;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	if ((bssid[0] == 0x00 && bssid[1] == 0x00 && bssid[2] == 0x00 &&
-	     bssid[3] == 0x00 && bssid[4] == 0x00 && bssid[5] == 0x00) ||
-	    (bssid[0] == 0xFF && bssid[1] == 0xFF && bssid[2] == 0xFF &&
-	     bssid[3] == 0xFF && bssid[4] == 0xFF && bssid[5] == 0xFF)) {
+	if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
 		status = false;
 		return status;
 	}
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index dc7adc132d1..c51ad9ed4b5 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -28,6 +28,8 @@
 
 #define _RTL871X_MLME_C_
 
+#include <linux/etherdevice.h>
+
 #include "osdep_service.h"
 #include "drv_types.h"
 #include "recv_osdep.h"
@@ -146,9 +148,8 @@ static struct wlan_network *_r8712_find_network(struct  __queue *scanned_queue,
 	unsigned long irqL;
 	struct list_head *phead, *plist;
 	struct wlan_network *pnetwork = NULL;
-	u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
 
-	if (!memcmp(zero_addr, addr, ETH_ALEN))
+	if (is_zero_ether_addr(addr))
 		return NULL;
 	spin_lock_irqsave(&scanned_queue->lock, irqL);
 	phead = get_list_head(scanned_queue);
diff --git a/drivers/staging/rtl8712/rtl871x_pwrctrl.h b/drivers/staging/rtl8712/rtl871x_pwrctrl.h
index 6024c4f63d5..70ff924fba0 100644
--- a/drivers/staging/rtl8712/rtl871x_pwrctrl.h
+++ b/drivers/staging/rtl8712/rtl871x_pwrctrl.h
@@ -30,26 +30,7 @@
 #include "drv_types.h"
 
 
-#define FW_PWR0	0
-#define FW_PWR1		1
-#define FW_PWR2		2
-#define FW_PWR3		3
-
-
-#define HW_PWR0	7
-#define HW_PWR1		6
-#define HW_PWR2		2
-#define HW_PWR3	0
-#define HW_PWR4	8
-
-#define FW_PWRMSK	0x7
-
-
-#define XMIT_ALIVE	BIT(0)
-#define RECV_ALIVE	BIT(1)
 #define CMD_ALIVE	BIT(2)
-#define EVT_ALIVE	BIT(3)
-
 
 enum Power_Mgnt {
 	PS_MODE_ACTIVE	= 0	,
@@ -66,7 +47,6 @@ enum Power_Mgnt {
 	PS_MODE_NUM
 };
 
-
 /*
 	BIT[2:0] = HW state
 	BIT[3] = Protocol PS state, 0: register active state,
diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c
index c9d1743e5c5..23ec684b60e 100644
--- a/drivers/staging/rtl8712/rtl871x_recv.c
+++ b/drivers/staging/rtl8712/rtl871x_recv.c
@@ -32,6 +32,7 @@
 #include <linux/slab.h>
 #include <linux/if_ether.h>
 #include <linux/kmemleak.h>
+#include <linux/etherdevice.h>
 
 #include "osdep_service.h"
 #include "drv_types.h"
@@ -331,8 +332,8 @@ static sint sta2sta_data_frame(struct _adapter *adapter,
 			return _FAIL;
 		if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast))
 			return _FAIL;
-		if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
-		    !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
+		if (is_zero_ether_addr(pattrib->bssid) ||
+		    is_zero_ether_addr(mybssid) ||
 		    (memcmp(pattrib->bssid, mybssid, ETH_ALEN)))
 			return _FAIL;
 		sta_addr = pattrib->src;
@@ -409,8 +410,8 @@ static sint ap2sta_data_frame(struct _adapter *adapter,
 		if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast))
 			return _FAIL;
 		/* check BSSID */
-		if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
-		     !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
+		if (is_zero_ether_addr(pattrib->bssid) ||
+		     is_zero_ether_addr(mybssid) ||
 		     (memcmp(pattrib->bssid, mybssid, ETH_ALEN)))
 			return _FAIL;
 		if (bmcast)
diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
index 7b92927a04d..e33fd6db246 100644
--- a/drivers/staging/rtl8712/rtl871x_security.c
+++ b/drivers/staging/rtl8712/rtl871x_security.c
@@ -58,7 +58,7 @@ struct arc4context {
 	u8 state[256];
 };
 
-static void arcfour_init(struct arc4context *parc4ctx, u8 * key, u32 key_len)
+static void arcfour_init(struct arc4context *parc4ctx, u8 *key, u32 key_len)
 {
 	u32	t, u;
 	u32	keyindex;
@@ -288,7 +288,7 @@ static void secmicclear(struct mic_data *pmicdata)
 	pmicdata->M = 0;
 }
 
-void r8712_secmicsetkey(struct mic_data *pmicdata, u8 * key)
+void r8712_secmicsetkey(struct mic_data *pmicdata, u8 *key)
 {
 	/* Set the key */
 	pmicdata->K0 = secmicgetuint32(key);
@@ -320,7 +320,7 @@ static void secmicappendbyte(struct mic_data *pmicdata, u8 b)
 	}
 }
 
-void r8712_secmicappend(struct mic_data *pmicdata, u8 * src, u32 nbytes)
+void r8712_secmicappend(struct mic_data *pmicdata, u8 *src, u32 nbytes)
 {
 	/* This is simple */
 	while (nbytes > 0) {
@@ -1368,7 +1368,7 @@ u32 r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe)
 					   precvframe)->u.hdr.attrib;
 	struct	security_priv *psecuritypriv = &padapter->securitypriv;
 
-	pframe = (unsigned char *)((union recv_frame*)precvframe)->
+	pframe = (unsigned char *)((union recv_frame *)precvframe)->
 		 u.hdr.rx_data;
 	/* 4 start to encrypt each fragment */
 	if ((prxattrib->encrypt == _AES_)) {
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index c758c40e0c8..6b73843e580 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -37,7 +37,6 @@
 #include "recv_osdep.h"
 #include "xmit_osdep.h"
 #include "rtl8712_efuse.h"
-#include "usb_vendor_req.h"
 #include "usb_ops.h"
 #include "usb_osintf.h"
 
diff --git a/drivers/staging/rtl8712/usb_osintf.h b/drivers/staging/rtl8712/usb_osintf.h
index d95797aac37..609f9210cc4 100644
--- a/drivers/staging/rtl8712/usb_osintf.h
+++ b/drivers/staging/rtl8712/usb_osintf.h
@@ -28,9 +28,6 @@
 
 #include "osdep_service.h"
 #include "drv_types.h"
-#include "usb_vendor_req.h"
-
-#define USBD_HALTED(Status) ((u32)(Status) >> 30 == 3)
 
 extern char *r8712_initmac;
 
diff --git a/drivers/staging/rtl8712/usb_vendor_req.h b/drivers/staging/rtl8712/usb_vendor_req.h
deleted file mode 100644
index 82335a83d0d..00000000000
--- a/drivers/staging/rtl8712/usb_vendor_req.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * Modifications for inclusion into the Linux staging tree are
- * Copyright(c) 2010 Larry Finger. All rights reserved.
- *
- * Contact information:
- * WLAN FAE <wlanfae@realtek.com>
- * Larry Finger <Larry.Finger@lwfinger.net>
- *
- ******************************************************************************/
-#ifndef _USB_VENDOR_REQUEST_H_
-#define _USB_VENDOR_REQUEST_H_
-
-/*4	Set/Get Register related wIndex/Data */
-#define	RT_USB_RESET_MASK_OFF		0
-#define	RT_USB_RESET_MASK_ON		1
-#define	RT_USB_SLEEP_MASK_OFF		0
-#define	RT_USB_SLEEP_MASK_ON		1
-#define	RT_USB_LDO_ON			1
-#define	RT_USB_LDO_OFF			0
-
-/*4	Set/Get SYSCLK related	wValue or Data */
-#define	RT_USB_SYSCLK_32KHZ		0
-#define	RT_USB_SYSCLK_40MHZ		1
-#define	RT_USB_SYSCLK_60MHZ		2
-
-enum RT_USB_BREQUEST {
-	RT_USB_SET_REGISTER		= 1,
-	RT_USB_SET_SYSCLK		= 2,
-	RT_USB_GET_SYSCLK		= 3,
-	RT_USB_GET_REGISTER		= 4
-};
-
-enum RT_USB_WVALUE {
-	RT_USB_RESET_MASK	=	1,
-	RT_USB_SLEEP_MASK	=	2,
-	RT_USB_USB_HRCPWM	=	3,
-	RT_USB_LDO		=	4,
-	RT_USB_BOOT_TYPE	=	5
-};
-
-#endif
-
diff --git a/drivers/staging/rts5139/rts51x_fop.c b/drivers/staging/rts5139/rts51x_fop.c
index e1200fe8957..bf1a9e64e87 100644
--- a/drivers/staging/rts5139/rts51x_fop.c
+++ b/drivers/staging/rts5139/rts51x_fop.c
@@ -79,7 +79,7 @@ static int rts51x_sd_direct_cmnd(struct rts51x_chip *chip,
 
 	case 1:
 		/* Read from card */
-		buf = kmalloc(cmnd->buf_len, GFP_KERNEL);
+		buf = kzalloc(cmnd->buf_len, GFP_KERNEL);
 		if (!buf)
 			TRACE_RET(chip, STATUS_NOMEM);
 
diff --git a/drivers/staging/rts5139/trace.h b/drivers/staging/rts5139/trace.h
index 0584b8ab43c..c9dfb1ea411 100644
--- a/drivers/staging/rts5139/trace.h
+++ b/drivers/staging/rts5139/trace.h
@@ -93,35 +93,9 @@ do {									\
 #endif
 
 #ifdef CONFIG_RTS5139_DEBUG
-static inline void rts51x_dump(u8 *buf, int buf_len)
-{
-	int i;
-	u8 tmp[16] = { 0 };
-	u8 *_ptr = buf;
-
-	for (i = 0; i < ((buf_len) / 16); i++) {
-		RTS51X_DEBUGP("%02x %02x %02x %02x %02x %02x %02x %02x "
-			       "%02x %02x %02x %02x %02x %02x %02x %02x\n",
-			       _ptr[0], _ptr[1], _ptr[2], _ptr[3], _ptr[4],
-			       _ptr[5], _ptr[6], _ptr[7], _ptr[8], _ptr[9],
-			       _ptr[10], _ptr[11], _ptr[12], _ptr[13], _ptr[14],
-			       _ptr[15]);
-		_ptr += 16;
-	}
-	if ((buf_len) % 16) {
-		memcpy(tmp, _ptr, (buf_len) % 16);
-		_ptr = tmp;
-		RTS51X_DEBUGP("%02x %02x %02x %02x %02x %02x %02x %02x "
-			       "%02x %02x %02x %02x %02x %02x %02x %02x\n",
-			       _ptr[0], _ptr[1], _ptr[2], _ptr[3], _ptr[4],
-			       _ptr[5], _ptr[6], _ptr[7], _ptr[8], _ptr[9],
-			       _ptr[10], _ptr[11], _ptr[12], _ptr[13], _ptr[14],
-			       _ptr[15]);
-	}
-}
-
-#define RTS51X_DUMP(buf, buf_len)	\
-		rts51x_dump((u8 *)(buf), (buf_len))
+#define RTS51X_DUMP(buf, buf_len)					\
+	print_hex_dump(KERN_DEBUG, RTS51X_TIP, DUMP_PREFIX_NONE,	\
+				16, 1, (buf), (buf_len), false)
 
 #define CATCH_TRIGGER(chip)					\
 do {								\
diff --git a/drivers/staging/rts_pstor/ms.c b/drivers/staging/rts_pstor/ms.c
index 7cc2b53f20d..16a5c16fb6a 100644
--- a/drivers/staging/rts_pstor/ms.c
+++ b/drivers/staging/rts_pstor/ms.c
@@ -109,9 +109,8 @@ static int ms_transfer_data(struct rtsx_chip *chip, u8 trans_mode, u8 tpc, u16 s
 	u8 val, err_code = 0;
 	enum dma_data_direction dir;
 
-	if (!buf || !buf_len) {
+	if (!buf || !buf_len)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (trans_mode == MS_TM_AUTO_READ) {
 		dir = DMA_FROM_DEVICE;
@@ -151,18 +150,17 @@ static int ms_transfer_data(struct rtsx_chip *chip, u8 trans_mode, u8 tpc, u16 s
 				    use_sg, dir, chip->mspro_timeout);
 	if (retval < 0) {
 		ms_set_err_code(chip, err_code);
-		if (retval == -ETIMEDOUT) {
+		if (retval == -ETIMEDOUT)
 			retval = STATUS_TIMEDOUT;
-		} else {
+		else
 			retval = STATUS_FAIL;
-		}
+
 		TRACE_RET(chip, retval);
 	}
 
 	RTSX_READ_REG(chip, MS_TRANS_CFG, &val);
-	if (val & (MS_INT_CMDNK | MS_INT_ERR | MS_CRC16_ERR | MS_RDY_TIMEOUT)) {
+	if (val & (MS_INT_CMDNK | MS_INT_ERR | MS_CRC16_ERR | MS_RDY_TIMEOUT))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -173,9 +171,8 @@ static int ms_write_bytes(struct rtsx_chip *chip,
 	struct ms_info *ms_card = &(chip->ms_card);
 	int retval, i;
 
-	if (!data || (data_len < cnt)) {
+	if (!data || (data_len < cnt))
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	rtsx_init_cmd(chip);
 
@@ -183,9 +180,8 @@ static int ms_write_bytes(struct rtsx_chip *chip,
 		rtsx_add_cmd(chip, WRITE_REG_CMD,
 			     PPBUF_BASE2 + i, 0xFF, data[i]);
 	}
-	if (cnt % 2) {
+	if (cnt % 2)
 		rtsx_add_cmd(chip, WRITE_REG_CMD, PPBUF_BASE2 + i, 0xFF, 0xFF);
-	}
 
 	rtsx_add_cmd(chip, WRITE_REG_CMD, MS_TPC, 0xFF, tpc);
 	rtsx_add_cmd(chip, WRITE_REG_CMD, MS_BYTE_CNT, 0xFF, cnt);
@@ -238,9 +234,8 @@ static int ms_read_bytes(struct rtsx_chip *chip, u8 tpc, u8 cnt, u8 cfg, u8 *dat
 	int retval, i;
 	u8 *ptr;
 
-	if (!data) {
+	if (!data)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	rtsx_init_cmd(chip);
 
@@ -252,14 +247,13 @@ static int ms_read_bytes(struct rtsx_chip *chip, u8 tpc, u8 cnt, u8 cfg, u8 *dat
 	rtsx_add_cmd(chip, WRITE_REG_CMD, MS_TRANSFER, 0xFF, MS_TRANSFER_START | MS_TM_READ_BYTES);
 	rtsx_add_cmd(chip, CHECK_REG_CMD, MS_TRANSFER, MS_TRANSFER_END, MS_TRANSFER_END);
 
-	for (i = 0; i < data_len - 1; i++) {
+	for (i = 0; i < data_len - 1; i++)
 	       rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + i, 0, 0);
-	}
-	if (data_len % 2) {
+
+	if (data_len % 2)
 		rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + data_len, 0, 0);
-	} else {
+	else
 		rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + data_len - 1, 0, 0);
-	}
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 5000);
 	if (retval < 0) {
@@ -293,9 +287,8 @@ static int ms_read_bytes(struct rtsx_chip *chip, u8 tpc, u8 cnt, u8 cfg, u8 *dat
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
 
-	for (i = 0; i < data_len; i++) {
+	for (i = 0; i < data_len; i++)
 		data[i] = ptr[i];
-	}
 
 	if ((tpc == PRO_READ_SHORT_DATA) && (data_len == 8)) {
 		RTSX_DEBUGP("Read format progress:\n");
@@ -343,34 +336,31 @@ static int ms_set_init_para(struct rtsx_chip *chip)
 	int retval;
 
 	if (CHK_HG8BIT(ms_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			ms_card->ms_clock = chip->asic_ms_hg_clk;
-		} else {
+		else
 			ms_card->ms_clock = chip->fpga_ms_hg_clk;
-		}
+
 	} else if (CHK_MSPRO(ms_card) || CHK_MS4BIT(ms_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			ms_card->ms_clock = chip->asic_ms_4bit_clk;
-		} else {
+		else
 			ms_card->ms_clock = chip->fpga_ms_4bit_clk;
-		}
+
 	} else {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			ms_card->ms_clock = chip->asic_ms_1bit_clk;
-		} else {
+		else
 			ms_card->ms_clock = chip->fpga_ms_1bit_clk;
-		}
 	}
 
 	retval = switch_clock(chip, ms_card->ms_clock);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = select_card(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -381,14 +371,12 @@ static int ms_switch_clock(struct rtsx_chip *chip)
 	int retval;
 
 	retval = select_card(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = switch_clock(chip, ms_card->ms_clock);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -461,9 +449,8 @@ static int ms_pull_ctl_enable(struct rtsx_chip *chip)
 	}
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 100);
-	if (retval < 0) {
+	if (retval < 0)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -482,40 +469,37 @@ static int ms_prepare_reset(struct rtsx_chip *chip)
 	ms_card->pro_under_formatting = 0;
 
 	retval = ms_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (!chip->ft2_fast_mode)
 		wait_timeout(250);
 
 	retval = enable_card_clock(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (chip->asic_code) {
 		retval = ms_pull_ctl_enable(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		RTSX_WRITE_REG(chip, FPGA_PULL_CTL, FPGA_MS_PULL_CTL_BIT | 0x20, 0);
 	}
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_on(chip, MS_CARD);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		wait_timeout(150);
 
 #ifdef SUPPORT_OCP
-		if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+		if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 			oc_mask = MS_OC_NOW | MS_OC_EVER;
-		} else {
+		else
 			oc_mask = SD_OC_NOW | SD_OC_EVER;
-		}
+
 		if (chip->ocp_stat & oc_mask) {
 			RTSX_DEBUGP("Over current, OCPSTAT is 0x%x\n",
 				     chip->ocp_stat);
@@ -539,9 +523,8 @@ static int ms_prepare_reset(struct rtsx_chip *chip)
 	RTSX_WRITE_REG(chip, CARD_STOP, MS_STOP | MS_CLR_ERR, MS_STOP | MS_CLR_ERR);
 
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -553,26 +536,23 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 	u8 val;
 
 	retval = ms_set_rw_reg_addr(chip, Pro_StatusReg, 6, SystemParm, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_transfer_tpc(chip, MS_TM_READ_BYTES, READ_REG, 6, NO_WAIT_INT);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			break;
-		}
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_READ_REG(chip, PPBUF_BASE2 + 2, &val);
 	RTSX_DEBUGP("Type register: 0x%x\n", val);
 	if (val != 0x01) {
-		if (val != 0x02) {
+		if (val != 0x02)
 			ms_card->check_ms_flow = 1;
-		}
+
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
@@ -587,11 +567,11 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 	RTSX_DEBUGP("Class register: 0x%x\n", val);
 	if (val == 0) {
 		RTSX_READ_REG(chip, PPBUF_BASE2, &val);
-		if (val & WRT_PRTCT) {
+		if (val & WRT_PRTCT)
 			chip->card_wp |= MS_CARD;
-		} else {
+		else
 			chip->card_wp &= ~MS_CARD;
-		}
+
 	} else if ((val == 0x01) || (val == 0x02) || (val == 0x03)) {
 		chip->card_wp |= MS_CARD;
 	} else {
@@ -606,11 +586,11 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 	if (val == 0) {
 		ms_card->ms_type &= 0x0F;
 	} else if (val == 7) {
-		if (switch_8bit_bus) {
+		if (switch_8bit_bus)
 			ms_card->ms_type |= MS_HG;
-		} else {
+		else
 			ms_card->ms_type &= 0x0F;
-		}
+
 	} else {
 		TRACE_RET(chip, STATUS_FAIL);
 	}
@@ -633,17 +613,15 @@ static int ms_confirm_cpu_startup(struct rtsx_chip *chip)
 
 		for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 			retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-			if (retval == STATUS_SUCCESS) {
+			if (retval == STATUS_SUCCESS)
 				break;
-			}
 		}
-		if (i == MS_MAX_RETRY_COUNT) {
+		if (i == MS_MAX_RETRY_COUNT)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
-		if (k > 100) {
+		if (k > 100)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		k++;
 		wait_timeout(100);
 	} while (!(val & INT_REG_CED));
@@ -653,16 +631,14 @@ static int ms_confirm_cpu_startup(struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (val & INT_REG_ERR) {
-		if (val & INT_REG_CMDNK) {
+		if (val & INT_REG_CMDNK)
 			chip->card_wp |= (MS_CARD);
-		} else {
+		else
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 	/* --  end confirm CPU startup */
 
@@ -681,9 +657,8 @@ static int ms_switch_parallel_bus(struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -698,26 +673,22 @@ static int ms_switch_8bit_bus(struct rtsx_chip *chip)
 	data[1] = 0;
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_write_bytes(chip, WRITE_REG, 1, NO_WAIT_INT, data, 2);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			break;
-		}
 	}
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_WRITE_REG(chip, MS_CFG, 0x98, MS_BUS_WIDTH_8 | SAMPLE_TIME_FALLING);
 	ms_card->ms_type |= MS_8BIT;
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_transfer_tpc(chip, MS_TM_READ_BYTES, GET_INT, 1, NO_WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -730,19 +701,16 @@ static int ms_pro_reset_flow(struct rtsx_chip *chip, int switch_8bit_bus)
 
 	for (i = 0; i < 3; i++) {
 		retval = ms_prepare_reset(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_identify_media_type(chip, switch_8bit_bus);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_confirm_cpu_startup(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_switch_parallel_bus(chip);
 		if (retval != STATUS_SUCCESS) {
@@ -756,18 +724,16 @@ static int ms_pro_reset_flow(struct rtsx_chip *chip, int switch_8bit_bus)
 		}
 	}
 
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	/* Switch MS-PRO into Parallel mode */
 	RTSX_WRITE_REG(chip, MS_CFG, 0x18, MS_BUS_WIDTH_4);
 	RTSX_WRITE_REG(chip, MS_CFG, PUSH_TIME_ODD, PUSH_TIME_ODD);
 
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	/* If MSPro HG Card, We shall try to switch to 8-bit bus */
 	if (CHK_MSHG(ms_card) && chip->support_ms_8bit && switch_8bit_bus) {
@@ -790,9 +756,8 @@ static int msxc_change_power(struct rtsx_chip *chip, u8 mode)
 	ms_cleanup_work(chip);
 
 	retval = ms_set_rw_reg_addr(chip, 0, 0, Pro_DataCount1, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	buf[0] = 0;
 	buf[1] = mode;
@@ -802,19 +767,16 @@ static int msxc_change_power(struct rtsx_chip *chip, u8 mode)
 	buf[5] = 0;
 
 	retval = ms_write_bytes(chip, PRO_WRITE_REG , 6, NO_WAIT_INT, buf, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_send_cmd(chip, XC_CHG_POWER, WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_READ_REG(chip, MS_TRANS_CFG, buf);
-	if (buf[0] & (MS_INT_CMDNK | MS_INT_ERR)) {
+	if (buf[0] & (MS_INT_CMDNK | MS_INT_ERR))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -836,15 +798,14 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 #endif
 
 	retval = ms_set_rw_reg_addr(chip, Pro_IntReg, 2, Pro_SystemParm, 7);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (CHK_MS8BIT(ms_card)) {
+	if (CHK_MS8BIT(ms_card))
 		data[0] = PARALLEL_8BIT_IF;
-	} else {
+	else
 		data[0] = PARALLEL_4BIT_IF;
-	}
+
 	data[1] = 0;
 
 	data[2] = 0x40;
@@ -856,24 +817,21 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_write_bytes(chip, PRO_WRITE_REG, 7, NO_WAIT_INT, data, 8);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			break;
-		}
 	}
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	buf = kmalloc(64 * 512, GFP_KERNEL);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_send_cmd(chip, PRO_READ_ATRB, WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			continue;
-		}
+
 		retval = rtsx_read_register(chip, MS_TRANS_CFG, &val);
 		if (retval != STATUS_SUCCESS) {
 			kfree(buf);
@@ -885,11 +843,10 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 		}
 		retval = ms_transfer_data(chip, MS_TM_AUTO_READ, PRO_READ_LONG_DATA,
 				0x40, WAIT_INT, 0, 0, buf, 64 * 512);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			break;
-		} else {
+		else
 			rtsx_clear_ms_error(chip);
-		}
 	}
 	if (retval != STATUS_SUCCESS) {
 		kfree(buf);
@@ -963,9 +920,8 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 			}
 
 #ifdef SUPPORT_MSXC
-			if (buf[cur_addr_off + 8] == 0x13) {
+			if (buf[cur_addr_off + 8] == 0x13)
 				ms_card->ms_type |= MS_XC;
-			}
 #endif
 #ifdef SUPPORT_PCGL_1P18
 			found_sys_info = 1;
@@ -1046,18 +1002,15 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 
 #ifdef SUPPORT_MSXC
 	if (CHK_MSXC(ms_card)) {
-		if (class_code != 0x03) {
+		if (class_code != 0x03)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
-		if (class_code != 0x02) {
+		if (class_code != 0x02)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 #else
-	if (class_code != 0x02) {
+	if (class_code != 0x02)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 #endif
 
 	if (device_type != 0x00) {
@@ -1069,9 +1022,8 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 		}
 	}
 
-	if (sub_class & 0xC0) {
+	if (sub_class & 0xC0)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_DEBUGP("class_code: 0x%x, device_type: 0x%x, sub_class: 0x%x\n",
 		class_code, device_type, sub_class);
@@ -1117,23 +1069,20 @@ Retry:
 	if (retval != STATUS_SUCCESS) {
 		if (ms_card->switch_8bit_fail) {
 			retval = ms_pro_reset_flow(chip, 0);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		} else {
 			TRACE_RET(chip, STATUS_FAIL);
 		}
 	}
 
 	retval = ms_read_attribute_info(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 #ifdef XC_POWERCLASS
-	if (CHK_HG8BIT(ms_card)) {
+	if (CHK_HG8BIT(ms_card))
 		change_power_class = 0;
-	}
 
 	if (change_power_class && CHK_MSXC(ms_card)) {
 		u8 power_class_en = chip->ms_power_class_en;
@@ -1141,11 +1090,10 @@ Retry:
 		RTSX_DEBUGP("power_class_en = 0x%x\n", power_class_en);
 		RTSX_DEBUGP("change_power_class = %d\n", change_power_class);
 
-		if (change_power_class) {
+		if (change_power_class)
 			power_class_en &= (1 << (change_power_class - 1));
-		} else {
+		else
 			power_class_en = 0;
-		}
 
 		if (power_class_en) {
 			u8 power_class_mode = (ms_card->raw_sys_info[46] & 0x18) >> 3;
@@ -1165,16 +1113,14 @@ Retry:
 
 #ifdef SUPPORT_MAGIC_GATE
 	retval = mg_set_tpc_para_sub(chip, 0, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 #endif
 
-	if (CHK_HG8BIT(ms_card)) {
+	if (CHK_HG8BIT(ms_card))
 		chip->card_bus_width[chip->card2lun[MS_CARD]] = 8;
-	} else {
+	else
 		chip->card_bus_width[chip->card2lun[MS_CARD]] = 4;
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1185,14 +1131,12 @@ static int ms_read_status_reg(struct rtsx_chip *chip)
 	u8 val[2];
 
 	retval = ms_set_rw_reg_addr(chip, StatusReg0, 2, 0, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_read_bytes(chip, READ_REG, 2, NO_WAIT_INT, val, 2);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (val[1] & (STS_UCDT | STS_UCEX | STS_UCFG)) {
 		ms_set_err_code(chip, MS_FLASH_READ_ERROR);
@@ -1211,9 +1155,8 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 	u8 val, data[10];
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (CHK_MS4BIT(ms_card)) {
 		/* Parallel interface */
@@ -1233,9 +1176,8 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -1244,15 +1186,14 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
 		TRACE_RET(chip, STATUS_FAIL);
@@ -1260,20 +1201,18 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 	if (val & INT_REG_CED) {
 		if (val & INT_REG_ERR) {
 			retval = ms_read_status_reg(chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 			retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 	}
 
 	retval = ms_read_bytes(chip, READ_REG, MS_EXTRA_SIZE, NO_WAIT_INT, data, MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (buf && buf_len) {
 		if (buf_len > MS_EXTRA_SIZE)
@@ -1291,45 +1230,40 @@ static int ms_write_extra_data(struct rtsx_chip *chip,
 	int retval, i;
 	u8 val, data[16];
 
-	if (!buf || (buf_len < MS_EXTRA_SIZE)) {
+	if (!buf || (buf_len < MS_EXTRA_SIZE))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6 + MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
-	} else {
+	else
 		data[0] = 0x80;
-	}
+
 	data[1] = 0;
 	data[2] = (u8)(block_addr >> 8);
 	data[3] = (u8)block_addr;
 	data[4] = 0x40;
 	data[5] = page_num;
 
-	for (i = 6; i < MS_EXTRA_SIZE + 6; i++) {
+	for (i = 6; i < MS_EXTRA_SIZE + 6; i++)
 		data[i] = buf[i - 6];
-	}
 
 	retval = ms_write_bytes(chip, WRITE_REG , (6+MS_EXTRA_SIZE), NO_WAIT_INT, data, 16);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
 		TRACE_RET(chip, STATUS_FAIL);
@@ -1352,15 +1286,14 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 	u8 val, data[6];
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
-	} else {
+	else
 		data[0] = 0x80;
-	}
+
 	data[1] = 0;
 	data[2] = (u8)(block_addr >> 8);
 	data[3] = (u8)block_addr;
@@ -1368,20 +1301,18 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 	data[5] = page_num;
 
 	retval = ms_write_bytes(chip, WRITE_REG , 6, NO_WAIT_INT, data, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_send_cmd(chip, BLOCK_READ, WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
 		TRACE_RET(chip, STATUS_FAIL);
@@ -1394,9 +1325,9 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 				TRACE_RET(chip, STATUS_FAIL);
 			}
 			retval = ms_read_status_reg(chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				ms_set_err_code(chip,  MS_FLASH_WRITE_ERROR);
-			}
+
 		} else {
 			if (!(val & INT_REG_BREQ)) {
 				ms_set_err_code(chip, MS_BREQ_ERROR);
@@ -1406,13 +1337,11 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 	}
 
 	retval = ms_transfer_tpc(chip, MS_TM_NORMAL_READ, READ_PAGE_DATA, 0, NO_WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (ms_check_err_code(chip, MS_FLASH_WRITE_ERROR)) {
+	if (ms_check_err_code(chip, MS_FLASH_WRITE_ERROR))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1425,22 +1354,20 @@ static int ms_set_bad_block(struct rtsx_chip *chip, u16 phy_blk)
 	u8 val, data[8], extra[MS_EXTRA_SIZE];
 
 	retval = ms_read_extra_data(chip, phy_blk, 0, extra, MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 7);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
-	} else {
+	else
 		data[0] = 0x80;
-	}
+
 	data[1] = 0;
 	data[2] = (u8)(phy_blk >> 8);
 	data[3] = (u8)phy_blk;
@@ -1450,20 +1377,17 @@ static int ms_set_bad_block(struct rtsx_chip *chip, u16 phy_blk)
 	data[7] = 0xFF;
 
 	retval = ms_write_bytes(chip, WRITE_REG , 7, NO_WAIT_INT, data, 7);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
@@ -1488,17 +1412,16 @@ static int ms_erase_block(struct rtsx_chip *chip, u16 phy_blk)
 	u8 val, data[6];
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
-	} else {
+	else
 		data[0] = 0x80;
-	}
+
 	data[1] = 0;
 	data[2] = (u8)(phy_blk >> 8);
 	data[3] = (u8)phy_blk;
@@ -1506,21 +1429,18 @@ static int ms_erase_block(struct rtsx_chip *chip, u16 phy_blk)
 	data[5] = 0;
 
 	retval = ms_write_bytes(chip, WRITE_REG, 6, NO_WAIT_INT, data, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 ERASE_RTY:
 	retval = ms_send_cmd(chip, BLOCK_ERASE, WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (val & INT_REG_CMDNK) {
 		if (i < 3) {
@@ -1546,9 +1466,8 @@ ERASE_RTY:
 
 static void ms_set_page_status(u16 log_blk, u8 type, u8 *extra, int extra_len)
 {
-	if (!extra || (extra_len < MS_EXTRA_SIZE)) {
+	if (!extra || (extra_len < MS_EXTRA_SIZE))
 		return;
-	}
 
 	memset(extra, 0xFF, MS_EXTRA_SIZE);
 
@@ -1583,9 +1502,8 @@ static int ms_init_page(struct rtsx_chip *chip, u16 phy_blk, u16 log_blk, u8 sta
 		}
 
 		retval = ms_write_extra_data(chip, phy_blk, i, extra, MS_EXTRA_SIZE);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1603,27 +1521,23 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 	RTSX_DEBUGP("start_page = %d, end_page = %d\n", start_page, end_page);
 
 	retval = ms_read_extra_data(chip, new_blk, 0, extra, MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_read_status_reg(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_READ_REG(chip, PPBUF_BASE2, &val);
 
 	if (val & BUF_FULL) {
 		retval = ms_send_cmd(chip, CLEAR_BUF, WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (!(val & INT_REG_CED)) {
 			ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
@@ -1640,17 +1554,16 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 		ms_read_extra_data(chip, old_blk, i, extra, MS_EXTRA_SIZE);
 
 		retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 
-		if (CHK_MS4BIT(ms_card)) {
+		if (CHK_MS4BIT(ms_card))
 			data[0] = 0x88;
-		} else {
+		else
 			data[0] = 0x80;
-		}
+
 		data[1] = 0;
 		data[2] = (u8)(old_blk >> 8);
 		data[3] = (u8)old_blk;
@@ -1658,20 +1571,17 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 		data[5] = i;
 
 		retval = ms_write_bytes(chip, WRITE_REG , 6, NO_WAIT_INT, data, 6);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_send_cmd(chip, BLOCK_READ, WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
@@ -1689,15 +1599,14 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 				}
 
 				retval = ms_transfer_tpc(chip, MS_TM_NORMAL_READ, READ_PAGE_DATA, 0, NO_WAIT_INT);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 
 				if (uncorrect_flag) {
 					ms_set_page_status(log_blk, setPS_NG, extra, MS_EXTRA_SIZE);
-					if (i == 0) {
+					if (i == 0)
 						extra[0] &= 0xEF;
-					}
+
 					ms_write_extra_data(chip, old_blk, i, extra, MS_EXTRA_SIZE);
 					RTSX_DEBUGP("page %d : extra[0] = 0x%x\n", i, extra[0]);
 					MS_SET_BAD_BLOCK_FLG(ms_card);
@@ -1710,13 +1619,11 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 				for (rty_cnt = 0; rty_cnt < MS_MAX_RETRY_COUNT; rty_cnt++) {
 					retval = ms_transfer_tpc(chip, MS_TM_NORMAL_WRITE,
 							WRITE_PAGE_DATA, 0, NO_WAIT_INT);
-					if (retval == STATUS_SUCCESS) {
+					if (retval == STATUS_SUCCESS)
 						break;
-					}
 				}
-				if (rty_cnt == MS_MAX_RETRY_COUNT) {
+				if (rty_cnt == MS_MAX_RETRY_COUNT)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			}
 
 			if (!(val & INT_REG_BREQ)) {
@@ -1730,45 +1637,41 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 
-		if (CHK_MS4BIT(ms_card)) {
+		if (CHK_MS4BIT(ms_card))
 			data[0] = 0x88;
-		} else {
+		else
 			data[0] = 0x80;
-		}
+
 		data[1] = 0;
 		data[2] = (u8)(new_blk >> 8);
 		data[3] = (u8)new_blk;
 		data[4] = 0x20;
 		data[5] = i;
 
-		if ((extra[0] & 0x60) != 0x60) {
+		if ((extra[0] & 0x60) != 0x60)
 			data[6] = extra[0];
-		} else {
+		else
 			data[6] = 0xF8;
-		}
+
 		data[6 + 1] = 0xFF;
 		data[6 + 2] = (u8)(log_blk >> 8);
 		data[6 + 3] = (u8)log_blk;
 
-		for (j = 4; j <= MS_EXTRA_SIZE; j++) {
+		for (j = 4; j <= MS_EXTRA_SIZE; j++)
 			data[6 + j] = 0xFF;
-		}
 
 		retval = ms_write_bytes(chip, WRITE_REG, (6 + MS_EXTRA_SIZE), NO_WAIT_INT, data, 16);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
@@ -1784,17 +1687,16 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 		if (i == 0) {
 			retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 7);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 
 			ms_set_err_code(chip, MS_NO_ERROR);
 
-			if (CHK_MS4BIT(ms_card)) {
+			if (CHK_MS4BIT(ms_card))
 				data[0] = 0x88;
-			} else {
+			else
 				data[0] = 0x80;
-			}
+
 			data[1] = 0;
 			data[2] = (u8)(old_blk >> 8);
 			data[3] = (u8)old_blk;
@@ -1804,20 +1706,17 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 			data[7] = 0xFF;
 
 			retval = ms_write_bytes(chip, WRITE_REG, 7, NO_WAIT_INT, data, 8);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 
 			retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 
 			ms_set_err_code(chip, MS_NO_ERROR);
 			retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 
 			if (val & INT_REG_CMDNK) {
 				ms_set_err_code(chip, MS_CMD_NK);
@@ -1848,28 +1747,24 @@ static int reset_ms(struct rtsx_chip *chip)
 #endif
 
 	retval = ms_prepare_reset(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_card->ms_type |= TYPE_MS;
 
 	retval = ms_send_cmd(chip, MS_RESET, NO_WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_read_status_reg(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_READ_REG(chip, PPBUF_BASE2, &val);
-	if (val & WRT_PRTCT) {
+	if (val & WRT_PRTCT)
 		chip->card_wp |= MS_CARD;
-	} else {
+	else
 		chip->card_wp &= ~MS_CARD;
-	}
 
 	i = 0;
 
@@ -1913,21 +1808,18 @@ RE_SEARCH:
 	}
 
 	retval = ms_read_page(chip, ms_card->boot_block, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	/* Read MS system information as sys_info */
 	rtsx_init_cmd(chip);
 
-	for (i = 0; i < 96; i++) {
+	for (i = 0; i < 96; i++)
 		rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 0x1A0 + i, 0, 0);
-	}
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 100);
-	if (retval < 0) {
+	if (retval < 0)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ptr = rtsx_get_cmd_data(chip);
 	memcpy(ms_card->raw_sys_info, ptr, 96);
@@ -1938,21 +1830,18 @@ RE_SEARCH:
 	rtsx_add_cmd(chip, READ_REG_CMD, HEADER_ID0, 0, 0);
 	rtsx_add_cmd(chip, READ_REG_CMD, HEADER_ID1, 0, 0);
 
-	for (reg_addr = DISABLED_BLOCK0; reg_addr <= DISABLED_BLOCK3; reg_addr++) {
+	for (reg_addr = DISABLED_BLOCK0; reg_addr <= DISABLED_BLOCK3; reg_addr++)
 		rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0, 0);
-	}
 
-	for (reg_addr = BLOCK_SIZE_0; reg_addr <= PAGE_SIZE_1; reg_addr++) {
+	for (reg_addr = BLOCK_SIZE_0; reg_addr <= PAGE_SIZE_1; reg_addr++)
 		rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0, 0);
-	}
 
 	rtsx_add_cmd(chip, READ_REG_CMD, MS_Device_Type, 0, 0);
 	rtsx_add_cmd(chip, READ_REG_CMD, MS_4bit_Support, 0, 0);
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 100);
-	if (retval < 0) {
+	if (retval < 0)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ptr = rtsx_get_cmd_data(chip);
 
@@ -1975,9 +1864,8 @@ RE_SEARCH:
 		goto RE_SEARCH;
 	}
 
-	if ((ptr[14] == 1) || (ptr[14] == 3)) {
+	if ((ptr[14] == 1) || (ptr[14] == 3))
 		chip->card_wp |= MS_CARD;
-	}
 
 	/* BLOCK_SIZE_0, BLOCK_SIZE_1 */
 	block_size = ((u16)ptr[6] << 8) | ptr[7];
@@ -2026,17 +1914,15 @@ RE_SEARCH:
 	/* Switch I/F Mode */
 	if (ptr[15]) {
 		retval = ms_set_rw_reg_addr(chip, 0, 0, SystemParm, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		RTSX_WRITE_REG(chip, PPBUF_BASE2, 0xFF, 0x88);
 		RTSX_WRITE_REG(chip, PPBUF_BASE2 + 1, 0xFF, 0);
 
 		retval = ms_transfer_tpc(chip, MS_TM_WRITE_BYTES, WRITE_REG , 1, NO_WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		RTSX_WRITE_REG(chip, MS_CFG, 0x58 | MS_NO_CHECK_INT,
 				MS_BUS_WIDTH_4 | PUSH_TIME_ODD | MS_NO_CHECK_INT);
@@ -2044,11 +1930,10 @@ RE_SEARCH:
 		ms_card->ms_type |= MS_4BIT;
 	}
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		chip->card_bus_width[chip->card2lun[MS_CARD]] = 4;
-	} else {
+	else
 		chip->card_bus_width[chip->card2lun[MS_CARD]] = 1;
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2065,30 +1950,27 @@ static int ms_init_l2p_tbl(struct rtsx_chip *chip)
 
 	size = ms_card->segment_cnt * sizeof(struct zone_entry);
 	ms_card->segment = vzalloc(size);
-	if (ms_card->segment == NULL) {
+	if (ms_card->segment == NULL)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_read_page(chip, ms_card->boot_block, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, INIT_FAIL);
-	}
 
 	reg_addr = PPBUF_BASE2;
 	for (i = 0; i < (((ms_card->total_block >> 9) * 10) + 1); i++) {
 		retval = rtsx_read_register(chip, reg_addr++, &val1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, INIT_FAIL);
-		}
+
 		retval = rtsx_read_register(chip, reg_addr++, &val2);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, INIT_FAIL);
-		}
 
 		defect_block = ((u16)val1 << 8) | val2;
-		if (defect_block == 0xFFFF) {
+		if (defect_block == 0xFFFF)
 			break;
-		}
+
 		seg_no = defect_block / 512;
 		ms_card->segment[seg_no].defect_list[ms_card->segment[seg_no].disable_count++] = defect_block;
 	}
@@ -2141,9 +2023,8 @@ static void ms_set_l2p_tbl(struct rtsx_chip *chip, int seg_no, u16 log_off, u16
 		return;
 
 	segment = &(ms_card->segment[seg_no]);
-	if (segment->l2p_table) {
+	if (segment->l2p_table)
 		segment->l2p_table[log_off] = phy_blk;
-	}
 }
 
 static void ms_set_unused_block(struct rtsx_chip *chip, u16 phy_blk)
@@ -2156,9 +2037,9 @@ static void ms_set_unused_block(struct rtsx_chip *chip, u16 phy_blk)
 	segment = &(ms_card->segment[seg_no]);
 
 	segment->free_table[segment->set_index++] = phy_blk;
-	if (segment->set_index >= MS_FREE_TABLE_CNT) {
+	if (segment->set_index >= MS_FREE_TABLE_CNT)
 		segment->set_index = 0;
-	}
+
 	segment->unused_blk_cnt++;
 }
 
@@ -2175,9 +2056,9 @@ static u16 ms_get_unused_block(struct rtsx_chip *chip, int seg_no)
 
 	phy_blk = segment->free_table[segment->get_index];
 	segment->free_table[segment->get_index++] = 0xFFFF;
-	if (segment->get_index >= MS_FREE_TABLE_CNT) {
+	if (segment->get_index >= MS_FREE_TABLE_CNT)
 		segment->get_index = 0;
-	}
+
 	segment->unused_blk_cnt--;
 
 	return phy_blk;
@@ -2199,27 +2080,27 @@ static int ms_arbitrate_l2p(struct rtsx_chip *chip, u16 phy_blk, u16 log_off, u8
 
 	if (us1 != us2) {
 		if (us1 == 0) {
-			if (!(chip->card_wp & MS_CARD)) {
+			if (!(chip->card_wp & MS_CARD))
 				ms_erase_block(chip, tmp_blk);
-			}
+
 			ms_set_unused_block(chip, tmp_blk);
 			segment->l2p_table[log_off] = phy_blk;
 		} else {
-			if (!(chip->card_wp & MS_CARD)) {
+			if (!(chip->card_wp & MS_CARD))
 				ms_erase_block(chip, phy_blk);
-			}
+
 			ms_set_unused_block(chip, phy_blk);
 		}
 	} else {
 		if (phy_blk < tmp_blk) {
-			if (!(chip->card_wp & MS_CARD)) {
+			if (!(chip->card_wp & MS_CARD))
 				ms_erase_block(chip, phy_blk);
-			}
+
 			ms_set_unused_block(chip, phy_blk);
 		} else {
-			if (!(chip->card_wp & MS_CARD)) {
+			if (!(chip->card_wp & MS_CARD))
 				ms_erase_block(chip, tmp_blk);
-			}
+
 			ms_set_unused_block(chip, tmp_blk);
 			segment->l2p_table[log_off] = phy_blk;
 		}
@@ -2240,9 +2121,8 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 
 	if (ms_card->segment == NULL) {
 		retval = ms_init_l2p_tbl(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, retval);
-		}
 	}
 
 	if (ms_card->segment[seg_no].build_flag) {
@@ -2250,27 +2130,24 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 		return STATUS_SUCCESS;
 	}
 
-	if (seg_no == 0) {
+	if (seg_no == 0)
 		table_size = 494;
-	} else {
+	else
 		table_size = 496;
-	}
 
 	segment = &(ms_card->segment[seg_no]);
 
 	if (segment->l2p_table == NULL) {
 		segment->l2p_table = (u16 *)vmalloc(table_size * 2);
-		if (segment->l2p_table == NULL) {
+		if (segment->l2p_table == NULL)
 			TRACE_GOTO(chip, BUILD_FAIL);
-		}
 	}
 	memset((u8 *)(segment->l2p_table), 0xff, table_size * 2);
 
 	if (segment->free_table == NULL) {
 		segment->free_table = (u16 *)vmalloc(MS_FREE_TABLE_CNT * 2);
-		if (segment->free_table == NULL) {
+		if (segment->free_table == NULL)
 			TRACE_GOTO(chip, BUILD_FAIL);
-		}
 	}
 	memset((u8 *)(segment->free_table), 0xff, MS_FREE_TABLE_CNT * 2);
 
@@ -2368,13 +2245,11 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 
 	/* Logical Address Confirmation Process */
 	if (seg_no == ms_card->segment_cnt - 1) {
-		if (segment->unused_blk_cnt < 2) {
+		if (segment->unused_blk_cnt < 2)
 			chip->card_wp |= MS_CARD;
-		}
 	} else {
-		if (segment->unused_blk_cnt < 1) {
+		if (segment->unused_blk_cnt < 1)
 			chip->card_wp |= MS_CARD;
-		}
 	}
 
 	if (chip->card_wp & MS_CARD)
@@ -2388,9 +2263,9 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 				return STATUS_SUCCESS;
 			}
 			retval = ms_init_page(chip, phy_blk, log_blk, 0, 1);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_GOTO(chip, BUILD_FAIL);
-			}
+
 			segment->l2p_table[log_blk-ms_start_idx[seg_no]] = phy_blk;
 			if (seg_no == ms_card->segment_cnt - 1) {
 				if (segment->unused_blk_cnt < 2) {
@@ -2419,16 +2294,14 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 				phy_blk = ms_get_unused_block(chip, 0);
 				retval = ms_copy_page(chip, tmp_blk, phy_blk,
 						log_blk, 0, ms_card->page_off + 1);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 
 				segment->l2p_table[log_blk] = phy_blk;
 
 				retval = ms_set_bad_block(chip, tmp_blk);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			}
 		}
 	}
@@ -2458,14 +2331,12 @@ int reset_ms_card(struct rtsx_chip *chip)
 	memset(ms_card, 0, sizeof(struct ms_info));
 
 	retval = enable_card_clock(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = select_card(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_card->ms_type = 0;
 
@@ -2473,27 +2344,24 @@ int reset_ms_card(struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		if (ms_card->check_ms_flow) {
 			retval = reset_ms(chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		} else {
 			TRACE_RET(chip, STATUS_FAIL);
 		}
 	}
 
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (!CHK_MSPRO(ms_card)) {
 		/* Build table for the last segment,
 		 * to check if L2P table block exists, erasing it
 		 */
 		retval = ms_build_l2p_tbl(chip, ms_card->total_block / 512 - 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	RTSX_DEBUGP("ms_card->ms_type = 0x%x\n", ms_card->ms_type);
@@ -2520,9 +2388,8 @@ static int mspro_set_rw_cmd(struct rtsx_chip *chip, u32 start_sec, u16 sec_cnt,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2556,21 +2423,18 @@ static inline int ms_auto_tune_clock(struct rtsx_chip *chip)
 	RTSX_DEBUGP("--%s--\n", __func__);
 
 	if (chip->asic_code) {
-		if (ms_card->ms_clock > 30) {
+		if (ms_card->ms_clock > 30)
 			ms_card->ms_clock -= 20;
-		}
 	} else {
-		if (ms_card->ms_clock == CLK_80) {
+		if (ms_card->ms_clock == CLK_80)
 			ms_card->ms_clock = CLK_60;
-		} else if (ms_card->ms_clock == CLK_60) {
+		else if (ms_card->ms_clock == CLK_60)
 			ms_card->ms_clock = CLK_40;
-		}
 	}
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2616,15 +2480,13 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	}
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (srb->sc_data_direction == DMA_FROM_DEVICE) {
+	if (srb->sc_data_direction == DMA_FROM_DEVICE)
 		trans_mode = MS_TM_AUTO_READ;
-	} else {
+	else
 		trans_mode = MS_TM_AUTO_WRITE;
-	}
 
 	RTSX_READ_REG(chip, MS_TRANS_CFG, &val);
 
@@ -2639,9 +2501,8 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			ms_card->total_sec_cnt = 0;
 			if (val & MS_INT_BREQ) {
 				retval = ms_send_cmd(chip, PRO_STOP, WAIT_INT);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 
 				rtsx_write_register(chip, RBCTL, RB_FLUSH, RB_FLUSH);
 			}
@@ -2651,17 +2512,16 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	if (!ms_card->seq_mode) {
 		ms_card->total_sec_cnt = 0;
 		if (sector_cnt >= SEQ_START_CRITERIA) {
-			if ((ms_card->capacity - start_sector) > 0xFE00) {
+			if ((ms_card->capacity - start_sector) > 0xFE00)
 				count = 0xFE00;
-			} else {
+			else
 				count = (u16)(ms_card->capacity - start_sector);
-			}
+
 			if (count > sector_cnt) {
-				if (mode_2k) {
+				if (mode_2k)
 					ms_card->seq_mode |= MODE_2K_SEQ;
-				} else {
+				else
 					ms_card->seq_mode |= MODE_512_SEQ;
-				}
 			}
 		} else {
 			count = sector_cnt;
@@ -2686,9 +2546,9 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			TRACE_RET(chip, STATUS_FAIL);
 		}
 
-		if (val & MS_INT_BREQ) {
+		if (val & MS_INT_BREQ)
 			ms_send_cmd(chip, PRO_STOP, WAIT_INT);
-		}
+
 		if (val & (MS_CRC16_ERR | MS_RDY_TIMEOUT)) {
 			RTSX_DEBUGP("MSPro CRC error, tune clock!\n");
 			chip->rw_need_retry = 1;
@@ -2739,11 +2599,10 @@ static int mspro_read_format_progress(struct rtsx_chip *chip, const int short_da
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	if (short_data_len >= 256) {
+	if (short_data_len >= 256)
 		cnt = 0;
-	} else {
+	else
 		cnt = (u8)short_data_len;
-	}
 
 	retval = rtsx_write_register(chip, MS_CFG, MS_NO_CHECK_INT, MS_NO_CHECK_INT);
 	if (retval != STATUS_SUCCESS) {
@@ -2778,9 +2637,8 @@ static int mspro_read_format_progress(struct rtsx_chip *chip, const int short_da
 			ms_card->format_status = FORMAT_FAIL;
 			TRACE_RET(chip, STATUS_FAIL);
 		}
-		if (tmp & (MS_INT_CED | MS_INT_CMDNK | MS_INT_BREQ | MS_INT_ERR)) {
+		if (tmp & (MS_INT_CED | MS_INT_CMDNK | MS_INT_BREQ | MS_INT_ERR))
 			break;
-		}
 
 		wait_timeout(1);
 	}
@@ -2843,14 +2701,12 @@ int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip, int short_data_l
 	RTSX_DEBUGP("--%s--\n", __func__);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_set_rw_reg_addr(chip, 0x00, 0x00, Pro_TPCParm, 0x01);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	memset(buf, 0, 2);
 	switch (short_data_len) {
@@ -2874,25 +2730,22 @@ int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip, int short_data_l
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (quick_format) {
+	if (quick_format)
 		para = 0x0000;
-	} else {
+	else
 		para = 0x0001;
-	}
+
 	retval = mspro_set_rw_cmd(chip, 0, para, PRO_FORMAT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_READ_REG(chip, MS_TRANS_CFG, &tmp);
 
-	if (tmp & (MS_INT_CMDNK | MS_INT_ERR)) {
+	if (tmp & (MS_INT_CMDNK | MS_INT_ERR))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if ((tmp & (MS_INT_BREQ | MS_INT_CED)) == MS_INT_BREQ) {
 		ms_card->pro_under_formatting = 1;
@@ -2930,15 +2783,14 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk, u16 log_b
 	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
-	} else {
+	else
 		data[0] = 0x80;
-	}
+
 	data[1] = 0;
 	data[2] = (u8)(phy_blk >> 8);
 	data[3] = (u8)phy_blk;
@@ -2950,16 +2802,14 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk, u16 log_b
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
 	retval = ms_send_cmd(chip, BLOCK_READ, WAIT_INT);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ptr = buf;
 
@@ -2972,9 +2822,9 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk, u16 log_b
 		}
 
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
 			TRACE_RET(chip, STATUS_FAIL);
@@ -3006,15 +2856,14 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk, u16 log_b
 		if (page_addr == (end_page - 1)) {
 			if (!(val & INT_REG_CED)) {
 				retval = ms_send_cmd(chip, BLOCK_END, WAIT_INT);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			}
 
 			retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 			if (!(val & INT_REG_CED)) {
 				ms_set_err_code(chip, MS_FLASH_READ_ERROR);
 				TRACE_RET(chip, STATUS_FAIL);
@@ -3079,15 +2928,14 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk, u16 new_
 
 	if (!start_page) {
 		retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, 7);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
-		if (CHK_MS4BIT(ms_card)) {
+		if (CHK_MS4BIT(ms_card))
 			data[0] = 0x88;
-		} else {
+		else
 			data[0] = 0x80;
-		}
+
 		data[1] = 0;
 		data[2] = (u8)(old_blk >> 8);
 		data[3] = (u8)old_blk;
@@ -3097,74 +2945,66 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk, u16 new_
 		data[7] = 0xFF;
 
 		retval = ms_write_bytes(chip, WRITE_REG, 7, NO_WAIT_INT, data, 8);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 		retval = ms_transfer_tpc(chip, MS_TM_READ_BYTES, GET_INT, 1, NO_WAIT_INT);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE, SystemParm, (6 + MS_EXTRA_SIZE));
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
-	if (CHK_MS4BIT(ms_card)) {
+	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
-	} else {
+	else
 		data[0] = 0x80;
-	}
+
 	data[1] = 0;
 	data[2] = (u8)(new_blk >> 8);
 	data[3] = (u8)new_blk;
-	if ((end_page - start_page) == 1) {
+	if ((end_page - start_page) == 1)
 		data[4] = 0x20;
-	} else {
+	else
 		data[4] = 0;
-	}
+
 	data[5] = start_page;
 	data[6] = 0xF8;
 	data[7] = 0xFF;
 	data[8] = (u8)(log_blk >> 8);
 	data[9] = (u8)log_blk;
 
-	for (i = 0x0A; i < 0x10; i++) {
+	for (i = 0x0A; i < 0x10; i++)
 		data[i] = 0xFF;
-	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_write_bytes(chip, WRITE_REG, 6 + MS_EXTRA_SIZE, NO_WAIT_INT, data, 16);
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	ptr = buf;
 	for (page_addr = start_page; page_addr < end_page; page_addr++) {
@@ -3210,17 +3050,15 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk, u16 new_
 			ms_set_err_code(chip, MS_TO_ERROR);
 			rtsx_clear_ms_error(chip);
 
-			if (retval == -ETIMEDOUT) {
+			if (retval == -ETIMEDOUT)
 				TRACE_RET(chip, STATUS_TIMEDOUT);
-			} else {
+			else
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if ((end_page - start_page) == 1) {
 			if (!(val & INT_REG_CED)) {
@@ -3231,15 +3069,13 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk, u16 new_
 			if (page_addr == (end_page - 1)) {
 				if (!(val & INT_REG_CED)) {
 					retval = ms_send_cmd(chip, BLOCK_END, WAIT_INT);
-					if (retval != STATUS_SUCCESS) {
+					if (retval != STATUS_SUCCESS)
 						TRACE_RET(chip, STATUS_FAIL);
-					}
 				}
 
 				retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			}
 
 			if ((page_addr == (end_page - 1)) || (page_addr == ms_card->page_off)) {
@@ -3266,9 +3102,8 @@ static int ms_finish_write(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 	retval = ms_copy_page(chip, old_blk, new_blk, log_blk,
 			page_off, ms_card->page_off + 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	seg_no = old_blk >> 9;
 
@@ -3277,9 +3112,8 @@ static int ms_finish_write(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 		ms_set_bad_block(chip, old_blk);
 	} else {
 		retval = ms_erase_block(chip, old_blk);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			ms_set_unused_block(chip, old_blk);
-		}
 	}
 
 	ms_set_l2p_tbl(chip, seg_no, log_blk - ms_start_idx[seg_no], new_blk);
@@ -3294,9 +3128,8 @@ static int ms_prepare_write(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 	if (start_page) {
 		retval = ms_copy_page(chip, old_blk, new_blk, log_blk, 0, start_page);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -3311,17 +3144,15 @@ int ms_delay_write(struct rtsx_chip *chip)
 
 	if (delay_write->delay_write_flag) {
 		retval = ms_set_init_para(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		delay_write->delay_write_flag = 0;
 		retval = ms_finish_write(chip,
 				delay_write->old_phyblock, delay_write->new_phyblock,
 				delay_write->logblock, delay_write->pageoff);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -3330,11 +3161,10 @@ int ms_delay_write(struct rtsx_chip *chip)
 
 static inline void ms_rw_fail(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 {
-	if (srb->sc_data_direction == DMA_FROM_DEVICE) {
+	if (srb->sc_data_direction == DMA_FROM_DEVICE)
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-	} else {
+	else
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
-	}
 }
 
 static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 sector_cnt)
@@ -3449,11 +3279,11 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32
 	RTSX_DEBUGP("seg_no = %d, old_blk = 0x%x, new_blk = 0x%x\n", seg_no, old_blk, new_blk);
 
 	while (total_sec_cnt) {
-		if ((start_page + total_sec_cnt) > (ms_card->page_off + 1)) {
+		if ((start_page + total_sec_cnt) > (ms_card->page_off + 1))
 			end_page = ms_card->page_off + 1;
-		} else {
+		else
 			end_page = start_page + (u8)total_sec_cnt;
-		}
+
 		page_cnt = end_page - start_page;
 
 		RTSX_DEBUGP("start_page = %d, end_page = %d, page_cnt = %d\n",
@@ -3482,9 +3312,9 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32
 		if (srb->sc_data_direction == DMA_TO_DEVICE) {
 			if (end_page == (ms_card->page_off + 1)) {
 				retval = ms_erase_block(chip, old_blk);
-				if (retval == STATUS_SUCCESS) {
+				if (retval == STATUS_SUCCESS)
 					ms_set_unused_block(chip, old_blk);
-				}
+
 				ms_set_l2p_tbl(chip, seg_no, log_blk - ms_start_idx[seg_no], new_blk);
 			}
 		}
@@ -3565,11 +3395,10 @@ int ms_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 s
 	struct ms_info *ms_card = &(chip->ms_card);
 	int retval;
 
-	if (CHK_MSPRO(ms_card)) {
+	if (CHK_MSPRO(ms_card))
 		retval = mspro_rw_multi_sector(srb, chip, start_sector, sector_cnt);
-	} else {
+	else
 		retval = ms_rw_multi_sector(srb, chip, start_sector, sector_cnt);
-	}
 
 	return retval;
 }
@@ -3609,14 +3438,12 @@ static int ms_poll_int(struct rtsx_chip *chip)
 	rtsx_add_cmd(chip, CHECK_REG_CMD, MS_TRANS_CFG, MS_INT_CED, MS_INT_CED);
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 5000);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	val = *rtsx_get_cmd_data(chip);
-	if (val & MS_INT_ERR) {
+	if (val & MS_INT_ERR)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -3678,9 +3505,8 @@ static int mg_send_ex_cmd(struct rtsx_chip *chip, u8 cmd, u8 entry_num)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT) {
+	if (i == MS_MAX_RETRY_COUNT)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (check_ms_err(chip)) {
 		rtsx_clear_ms_error(chip);
@@ -3697,14 +3523,13 @@ static int mg_set_tpc_para_sub(struct rtsx_chip *chip, int type, u8 mg_entry_num
 
 	RTSX_DEBUGP("--%s--\n", __func__);
 
-	if (type == 0) {
+	if (type == 0)
 		retval = ms_set_rw_reg_addr(chip, 0, 0, Pro_TPCParm, 1);
-	} else {
+	else
 		retval = ms_set_rw_reg_addr(chip, 0, 0, Pro_DataCount1, 6);
-	}
-	if (retval != STATUS_SUCCESS) {
+
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	buf[0] = 0;
 	buf[1] = 0;
@@ -3715,9 +3540,8 @@ static int mg_set_tpc_para_sub(struct rtsx_chip *chip, int type, u8 mg_entry_num
 		buf[5] = mg_entry_num;
 	}
 	retval = ms_write_bytes(chip, PRO_WRITE_REG, (type == 0) ? 1 : 6, NO_WAIT_INT, buf, 6);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -3739,9 +3563,8 @@ int mg_set_leaf_id(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = mg_send_ex_cmd(chip, MG_SET_LID, 0);
 	if (retval != STATUS_SUCCESS) {
@@ -3751,9 +3574,9 @@ int mg_set_leaf_id(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	memset(buf1, 0, 32);
 	rtsx_stor_get_xfer_buf(buf2, min(12, (int)scsi_bufflen(srb)), srb);
-	for (i = 0; i < 8; i++) {
+	for (i = 0; i < 8; i++)
 		buf1[8+i] = buf2[4+i];
-	}
+
 	retval = ms_write_bytes(chip, PRO_WRITE_SHORT_DATA, 32, WAIT_INT, buf1, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
@@ -3780,14 +3603,12 @@ int mg_get_local_EKB(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	buf = kmalloc(1540, GFP_KERNEL);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	buf[0] = 0x04;
 	buf[1] = 0x1A;
@@ -3835,9 +3656,8 @@ int mg_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = mg_send_ex_cmd(chip, MG_GET_ID, 0);
 	if (retval != STATUS_SUCCESS) {
@@ -3875,12 +3695,12 @@ int mg_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	bufflen = min(12, (int)scsi_bufflen(srb));
 	rtsx_stor_get_xfer_buf(buf, bufflen, srb);
 
-	for (i = 0; i < 8; i++) {
+	for (i = 0; i < 8; i++)
 		buf[i] = buf[4+i];
-	}
-	for (i = 0; i < 24; i++) {
+
+	for (i = 0; i < 24; i++)
 		buf[8+i] = 0;
-	}
+
 	retval = ms_write_bytes(chip, PRO_WRITE_SHORT_DATA,
 				32, WAIT_INT, buf, 32);
 	if (retval != STATUS_SUCCESS) {
@@ -3911,9 +3731,8 @@ int mg_get_rsp_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = mg_send_ex_cmd(chip, MG_MAKE_RMS, 0);
 	if (retval != STATUS_SUCCESS) {
@@ -3968,9 +3787,8 @@ int mg_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = mg_send_ex_cmd(chip, MG_MAKE_KSE, 0);
 	if (retval != STATUS_SUCCESS) {
@@ -3981,12 +3799,12 @@ int mg_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	bufflen = min(12, (int)scsi_bufflen(srb));
 	rtsx_stor_get_xfer_buf(buf, bufflen, srb);
 
-	for (i = 0; i < 8; i++) {
+	for (i = 0; i < 8; i++)
 		buf[i] = buf[4+i];
-	}
-	for (i = 0; i < 24; i++) {
+
+	for (i = 0; i < 24; i++)
 		buf[8+i] = 0;
-	}
+
 	retval = ms_write_bytes(chip, PRO_WRITE_SHORT_DATA, 32, WAIT_INT, buf, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
@@ -4016,14 +3834,12 @@ int mg_get_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	buf = kmalloc(1028, GFP_KERNEL);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	buf[0] = 0x04;
 	buf[1] = 0x02;
@@ -4073,14 +3889,12 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	buf = kmalloc(1028, GFP_KERNEL);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	bufflen = min(1028, (int)scsi_bufflen(srb));
 	rtsx_stor_get_xfer_buf(buf, bufflen, srb);
@@ -4088,11 +3902,10 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = mg_send_ex_cmd(chip, MG_SET_IBD, ms_card->mg_entry_num);
 	if (retval != STATUS_SUCCESS) {
 		if (ms_card->mg_auth == 0) {
-			if ((buf[5] & 0xC0) != 0) {
+			if ((buf[5] & 0xC0) != 0)
 				set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
-			} else {
+			else
 				set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
-			}
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
 		}
@@ -4121,11 +3934,10 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if ((retval < 0) || check_ms_err(chip)) {
 			rtsx_clear_ms_error(chip);
 			if (ms_card->mg_auth == 0) {
-				if ((buf[5] & 0xC0) != 0) {
+				if ((buf[5] & 0xC0) != 0)
 					set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
-				} else {
+				else
 					set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
-				}
 			} else {
 				set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
 			}
@@ -4139,11 +3951,10 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if ((retval != STATUS_SUCCESS) || check_ms_err(chip)) {
 		rtsx_clear_ms_error(chip);
 		if (ms_card->mg_auth == 0) {
-			if ((buf[5] & 0xC0) != 0) {
+			if ((buf[5] & 0xC0) != 0)
 				set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
-			} else {
+			else
 				set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
-			}
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
 		}
@@ -4187,14 +3998,13 @@ int ms_power_off_card3v3(struct rtsx_chip *chip)
 	int retval;
 
 	retval = disable_card_clock(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	if (chip->asic_code) {
 		retval = ms_pull_ctl_disable(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
 			FPGA_MS_PULL_CTL_BIT | 0x20, FPGA_MS_PULL_CTL_BIT);
@@ -4202,9 +4012,8 @@ int ms_power_off_card3v3(struct rtsx_chip *chip)
 	RTSX_WRITE_REG(chip, CARD_OE, MS_OUTPUT_EN, 0);
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_off(chip, MS_CARD);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -4234,9 +4043,8 @@ int release_ms_card(struct rtsx_chip *chip)
 #endif
 
 	retval = ms_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
diff --git a/drivers/staging/rts_pstor/rtsx.c b/drivers/staging/rts_pstor/rtsx.c
index 5fb05a2edeb..afe9c2e763d 100644
--- a/drivers/staging/rts_pstor/rtsx.c
+++ b/drivers/staging/rts_pstor/rtsx.c
@@ -20,6 +20,8 @@
  *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/blkdev.h>
 #include <linux/kthread.h>
 #include <linux/sched.h>
@@ -170,14 +172,14 @@ static int queuecommand_lck(struct scsi_cmnd *srb,
 
 	/* check for state-transition errors */
 	if (chip->srb != NULL) {
-		printk(KERN_ERR "Error in %s: chip->srb = %p\n",
+		dev_err(&dev->pci->dev, "Error in %s: chip->srb = %p\n",
 			__func__, chip->srb);
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 
 	/* fail the command if we are disconnecting */
 	if (rtsx_chk_stat(chip, RTSX_STAT_DISCONNECT)) {
-		printk(KERN_INFO "Fail command during disconnect\n");
+		dev_info(&dev->pci->dev, "Fail command during disconnect\n");
 		srb->result = DID_NO_CONNECT << 16;
 		done(srb);
 		return 0;
@@ -204,14 +206,14 @@ static int command_abort(struct scsi_cmnd *srb)
 	struct rtsx_dev *dev = host_to_rtsx(host);
 	struct rtsx_chip *chip = dev->chip;
 
-	printk(KERN_INFO "%s called\n", __func__);
+	dev_info(&dev->pci->dev, "%s called\n", __func__);
 
 	scsi_lock(host);
 
 	/* Is this command still active? */
 	if (chip->srb != srb) {
 		scsi_unlock(host);
-		printk(KERN_INFO "-- nothing to abort\n");
+		dev_info(&dev->pci->dev, "-- nothing to abort\n");
 		return FAILED;
 	}
 
@@ -230,8 +232,9 @@ static int command_abort(struct scsi_cmnd *srb)
 static int device_reset(struct scsi_cmnd *srb)
 {
 	int result = 0;
+	struct rtsx_dev *dev = host_to_rtsx(srb->device->host);
 
-	printk(KERN_INFO "%s called\n", __func__);
+	dev_info(&dev->pci->dev, "%s called\n", __func__);
 
 	return result < 0 ? FAILED : SUCCESS;
 }
@@ -240,8 +243,9 @@ static int device_reset(struct scsi_cmnd *srb)
 static int bus_reset(struct scsi_cmnd *srb)
 {
 	int result = 0;
+	struct rtsx_dev *dev = host_to_rtsx(srb->device->host);
 
-	printk(KERN_INFO "%s called\n", __func__);
+	dev_info(&dev->pci->dev, "%s called\n", __func__);
 
 	return result < 0 ? FAILED : SUCCESS;
 }
@@ -303,14 +307,15 @@ static int rtsx_acquire_irq(struct rtsx_dev *dev)
 {
 	struct rtsx_chip *chip = dev->chip;
 
-	printk(KERN_INFO "%s: chip->msi_en = %d, pci->irq = %d\n",
-			__func__, chip->msi_en, dev->pci->irq);
+	dev_info(&dev->pci->dev, "%s: chip->msi_en = %d, pci->irq = %d\n",
+		 __func__, chip->msi_en, dev->pci->irq);
 
 	if (request_irq(dev->pci->irq, rtsx_interrupt,
 			chip->msi_en ? 0 : IRQF_SHARED,
 			CR_DRIVER_NAME, dev)) {
-		printk(KERN_ERR "rtsx: unable to grab IRQ %d, "
-		       "disabling device\n", dev->pci->irq);
+		dev_err(&dev->pci->dev,
+			"rtsx: unable to grab IRQ %d, disabling device\n",
+			dev->pci->irq);
 		return -1;
 	}
 
@@ -347,12 +352,8 @@ static int rtsx_suspend(struct pci_dev *pci, pm_message_t state)
 	struct rtsx_dev *dev = (struct rtsx_dev *)pci_get_drvdata(pci);
 	struct rtsx_chip *chip;
 
-	printk(KERN_INFO "Ready to suspend\n");
-
-	if (!dev) {
-		printk(KERN_ERR "Invalid memory\n");
+	if (!dev)
 		return 0;
-	}
 
 	/* lock the device pointers */
 	mutex_lock(&(dev->dev_mutex));
@@ -386,12 +387,8 @@ static int rtsx_resume(struct pci_dev *pci)
 	struct rtsx_dev *dev = (struct rtsx_dev *)pci_get_drvdata(pci);
 	struct rtsx_chip *chip;
 
-	printk(KERN_INFO "Ready to resume\n");
-
-	if (!dev) {
-		printk(KERN_ERR "Invalid memory\n");
+	if (!dev)
 		return 0;
-	}
 
 	chip = dev->chip;
 
@@ -401,8 +398,9 @@ static int rtsx_resume(struct pci_dev *pci)
 	pci_set_power_state(pci, PCI_D0);
 	pci_restore_state(pci);
 	if (pci_enable_device(pci) < 0) {
-		printk(KERN_ERR "%s: pci_enable_device failed, "
-		       "disabling device\n", CR_DRIVER_NAME);
+		dev_err(&dev->pci->dev,
+			"%s: pci_enable_device failed, disabling device\n",
+			CR_DRIVER_NAME);
 		/* unlock the device pointers */
 		mutex_unlock(&dev->dev_mutex);
 		return -EIO;
@@ -435,12 +433,8 @@ static void rtsx_shutdown(struct pci_dev *pci)
 	struct rtsx_dev *dev = (struct rtsx_dev *)pci_get_drvdata(pci);
 	struct rtsx_chip *chip;
 
-	printk(KERN_INFO "Ready to shutdown\n");
-
-	if (!dev) {
-		printk(KERN_ERR "Invalid memory\n");
+	if (!dev)
 		return;
-	}
 
 	chip = dev->chip;
 
@@ -475,7 +469,7 @@ static int rtsx_control_thread(void *__dev)
 
 		/* if the device has disconnected, we are free to exit */
 		if (rtsx_chk_stat(chip, RTSX_STAT_DISCONNECT)) {
-			printk(KERN_INFO "-- rtsx-control exiting\n");
+			dev_info(&dev->pci->dev, "-- rtsx-control exiting\n");
 			mutex_unlock(&dev->dev_mutex);
 			break;
 		}
@@ -495,7 +489,7 @@ static int rtsx_control_thread(void *__dev)
 		 * is UNKNOWN
 		 */
 		if (chip->srb->sc_data_direction == DMA_BIDIRECTIONAL) {
-			printk(KERN_ERR "UNKNOWN data direction\n");
+			dev_err(&dev->pci->dev, "UNKNOWN data direction\n");
 			chip->srb->result = DID_ERROR << 16;
 		}
 
@@ -503,14 +497,14 @@ static int rtsx_control_thread(void *__dev)
 		 * the maximum known LUN
 		 */
 		else if (chip->srb->device->id) {
-			printk(KERN_ERR "Bad target number (%d:%d)\n",
+			dev_err(&dev->pci->dev, "Bad target number (%d:%d)\n",
 				chip->srb->device->id,
 				chip->srb->device->lun);
 			chip->srb->result = DID_BAD_TARGET << 16;
 		}
 
 		else if (chip->srb->device->lun > chip->max_lun) {
-			printk(KERN_ERR "Bad LUN (%d:%d)\n",
+			dev_err(&dev->pci->dev, "Bad LUN (%d:%d)\n",
 				chip->srb->device->id,
 				chip->srb->device->lun);
 			chip->srb->result = DID_BAD_TARGET << 16;
@@ -534,7 +528,7 @@ static int rtsx_control_thread(void *__dev)
 			chip->srb->scsi_done(chip->srb);
 		} else {
 SkipForAbort:
-			printk(KERN_ERR "scsi command aborted\n");
+			dev_err(&dev->pci->dev, "scsi command aborted\n");
 		}
 
 		if (rtsx_chk_stat(chip, RTSX_STAT_ABORT)) {
@@ -594,7 +588,7 @@ static int rtsx_polling_thread(void *__dev)
 
 		/* if the device has disconnected, we are free to exit */
 		if (rtsx_chk_stat(chip, RTSX_STAT_DISCONNECT)) {
-			printk(KERN_INFO "-- rtsx-polling exiting\n");
+			dev_info(&dev->pci->dev, "-- rtsx-polling exiting\n");
 			mutex_unlock(&dev->dev_mutex);
 			break;
 		}
@@ -683,13 +677,13 @@ Exit:
 /* Release all our dynamic resources */
 static void rtsx_release_resources(struct rtsx_dev *dev)
 {
-	printk(KERN_INFO "-- %s\n", __func__);
+	dev_info(&dev->pci->dev, "-- %s\n", __func__);
 
 	/* Tell the control thread to exit.  The SCSI host must
 	 * already have been removed so it won't try to queue
 	 * any more commands.
 	 */
-	printk(KERN_INFO "-- sending exit command to thread\n");
+	dev_info(&dev->pci->dev, "-- sending exit command to thread\n");
 	complete(&dev->cmnd_ready);
 	if (dev->ctl_thread)
 		wait_for_completion(&dev->control_exit);
@@ -774,8 +768,9 @@ static int rtsx_scan_thread(void *__dev)
 
 	/* Wait for the timeout to expire or for a disconnect */
 	if (delay_use > 0) {
-		printk(KERN_INFO "%s: waiting for device "
-				"to settle before scanning\n", CR_DRIVER_NAME);
+		dev_info(&dev->pci->dev,
+			 "%s: waiting for device to settle before scanning\n",
+			 CR_DRIVER_NAME);
 		wait_event_interruptible_timeout(dev->delay_wait,
 				rtsx_chk_stat(chip, RTSX_STAT_DISCONNECT),
 				delay_use * HZ);
@@ -784,7 +779,8 @@ static int rtsx_scan_thread(void *__dev)
 	/* If the device is still connected, perform the scanning */
 	if (!rtsx_chk_stat(chip, RTSX_STAT_DISCONNECT)) {
 		scsi_scan_host(rtsx_to_host(dev));
-		printk(KERN_INFO "%s: device scan complete\n", CR_DRIVER_NAME);
+		dev_info(&dev->pci->dev, "%s: device scan complete\n",
+			 CR_DRIVER_NAME);
 
 		/* Should we unbind if no devices were detected? */
 	}
@@ -906,14 +902,14 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 
 	err = pci_enable_device(pci);
 	if (err < 0) {
-		printk(KERN_ERR "PCI enable device failed!\n");
+		dev_err(&pci->dev, "PCI enable device failed!\n");
 		return err;
 	}
 
 	err = pci_request_regions(pci, CR_DRIVER_NAME);
 	if (err < 0) {
-		printk(KERN_ERR "PCI request regions for %s failed!\n",
-		       CR_DRIVER_NAME);
+		dev_err(&pci->dev, "PCI request regions for %s failed!\n",
+			CR_DRIVER_NAME);
 		pci_disable_device(pci);
 		return err;
 	}
@@ -924,7 +920,7 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 	 */
 	host = scsi_host_alloc(&rtsx_host_template, sizeof(*dev));
 	if (!host) {
-		printk(KERN_ERR "Unable to allocate the scsi host\n");
+		dev_err(&pci->dev, "Unable to allocate the scsi host\n");
 		pci_release_regions(pci);
 		pci_disable_device(pci);
 		return -ENOMEM;
@@ -949,12 +945,12 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 	dev->pci = pci;
 	dev->irq = -1;
 
-	printk(KERN_INFO "Resource length: 0x%x\n",
-	       (unsigned int)pci_resource_len(pci, 0));
+	dev_info(&pci->dev, "Resource length: 0x%x\n",
+		 (unsigned int)pci_resource_len(pci, 0));
 	dev->addr = pci_resource_start(pci, 0);
 	dev->remap_addr = ioremap_nocache(dev->addr, pci_resource_len(pci, 0));
 	if (dev->remap_addr == NULL) {
-		printk(KERN_ERR "ioremap error\n");
+		dev_err(&pci->dev, "ioremap error\n");
 		err = -ENXIO;
 		goto errout;
 	}
@@ -963,13 +959,13 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 	 * Using "unsigned long" cast here to eliminate gcc warning in
 	 * 64-bit system
 	 */
-	printk(KERN_INFO "Original address: 0x%lx, remapped address: 0x%lx\n",
-	       (unsigned long)(dev->addr), (unsigned long)(dev->remap_addr));
+	dev_info(&pci->dev, "Original address: 0x%lx, remapped address: 0x%lx\n",
+		 (unsigned long)(dev->addr), (unsigned long)(dev->remap_addr));
 
 	dev->rtsx_resv_buf = dma_alloc_coherent(&(pci->dev), RTSX_RESV_BUF_LEN,
 			&(dev->rtsx_resv_buf_addr), GFP_KERNEL);
 	if (dev->rtsx_resv_buf == NULL) {
-		printk(KERN_ERR "alloc dma buffer fail\n");
+		dev_err(&pci->dev, "alloc dma buffer fail\n");
 		err = -ENXIO;
 		goto errout;
 	}
@@ -983,7 +979,7 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 
 	rtsx_init_options(dev->chip);
 
-	printk(KERN_INFO "pci->irq = %d\n", pci->irq);
+	dev_info(&pci->dev, "pci->irq = %d\n", pci->irq);
 
 	if (dev->chip->msi_en) {
 		if (pci_enable_msi(pci) < 0)
@@ -1008,7 +1004,7 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 	/* Start up our control thread */
 	th = kthread_run(rtsx_control_thread, dev, CR_DRIVER_NAME);
 	if (IS_ERR(th)) {
-		printk(KERN_ERR "Unable to start control thread\n");
+		dev_err(&pci->dev, "Unable to start control thread\n");
 		err = PTR_ERR(th);
 		goto errout;
 	}
@@ -1016,14 +1012,14 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 
 	err = scsi_add_host(host, &pci->dev);
 	if (err) {
-		printk(KERN_ERR "Unable to add the scsi host\n");
+		dev_err(&pci->dev, "Unable to add the scsi host\n");
 		goto errout;
 	}
 
 	/* Start up the thread for delayed SCSI-device scanning */
 	th = kthread_run(rtsx_scan_thread, dev, "rtsx-scan");
 	if (IS_ERR(th)) {
-		printk(KERN_ERR "Unable to start the device-scanning thread\n");
+		dev_err(&pci->dev, "Unable to start the device-scanning thread\n");
 		complete(&dev->scanning_done);
 		quiesce_and_remove_host(dev);
 		err = PTR_ERR(th);
@@ -1033,7 +1029,7 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 	/* Start up the thread for polling thread */
 	th = kthread_run(rtsx_polling_thread, dev, "rtsx-polling");
 	if (IS_ERR(th)) {
-		printk(KERN_ERR "Unable to start the device-polling thread\n");
+		dev_err(&pci->dev, "Unable to start the device-polling thread\n");
 		quiesce_and_remove_host(dev);
 		err = PTR_ERR(th);
 		goto errout;
@@ -1046,7 +1042,7 @@ static int __devinit rtsx_probe(struct pci_dev *pci,
 
 	/* We come here if there are any problems */
 errout:
-	printk(KERN_ERR "rtsx_probe() failed\n");
+	dev_err(&pci->dev, "rtsx_probe() failed\n");
 	release_everything(dev);
 
 	return err;
@@ -1057,7 +1053,7 @@ static void __devexit rtsx_remove(struct pci_dev *pci)
 {
 	struct rtsx_dev *dev = (struct rtsx_dev *)pci_get_drvdata(pci);
 
-	printk(KERN_INFO "rtsx_remove() called\n");
+	dev_info(&pci->dev, "rtsx_remove() called\n");
 
 	quiesce_and_remove_host(dev);
 	release_everything(dev);
@@ -1090,18 +1086,18 @@ static struct pci_driver driver = {
 
 static int __init rtsx_init(void)
 {
-	printk(KERN_INFO "Initializing Realtek PCIE storage driver...\n");
+	pr_info("Initializing Realtek PCIE storage driver...\n");
 
 	return pci_register_driver(&driver);
 }
 
 static void __exit rtsx_exit(void)
 {
-	printk(KERN_INFO "rtsx_exit() called\n");
+	pr_info("rtsx_exit() called\n");
 
 	pci_unregister_driver(&driver);
 
-	printk(KERN_INFO "%s module exit\n", CR_DRIVER_NAME);
+	pr_info("%s module exit\n", CR_DRIVER_NAME);
 }
 
 module_init(rtsx_init)
diff --git a/drivers/staging/rts_pstor/rtsx_card.c b/drivers/staging/rts_pstor/rtsx_card.c
index 4f971f2e930..539aa6a2778 100644
--- a/drivers/staging/rts_pstor/rtsx_card.c
+++ b/drivers/staging/rts_pstor/rtsx_card.c
@@ -309,11 +309,10 @@ static void release_sdio(struct rtsx_chip *chip)
 		if (chip->chip_insert_with_sdio) {
 			chip->chip_insert_with_sdio = 0;
 
-			if (CHECK_PID(chip, 0x5288)) {
+			if (CHECK_PID(chip, 0x5288))
 				rtsx_write_register(chip, 0xFE5A, 0x08, 0x00);
-			} else {
+			else
 				rtsx_write_register(chip, 0xFE70, 0x80, 0x00);
-			}
 		}
 
 		rtsx_write_register(chip, SDIO_CTRL, SDIO_CD_CTRL, 0);
@@ -379,11 +378,10 @@ void rtsx_reset_cards(struct rtsx_chip *chip)
 	if (chip->need_reset & XD_CARD) {
 		chip->card_exist |= XD_CARD;
 
-		if (chip->xd_show_cnt >= MAX_SHOW_CNT) {
+		if (chip->xd_show_cnt >= MAX_SHOW_CNT)
 			do_reset_xd_card(chip);
-		} else {
+		else
 			chip->xd_show_cnt++;
-		}
 	}
 	if (CHECK_PID(chip, 0x5288) && CHECK_BARO_PKG(chip, QFN)) {
 		if (chip->card_exist & XD_CARD) {
@@ -404,11 +402,10 @@ void rtsx_reset_cards(struct rtsx_chip *chip)
 	if (chip->need_reset & MS_CARD) {
 		chip->card_exist |= MS_CARD;
 
-		if (chip->ms_show_cnt >= MAX_SHOW_CNT) {
+		if (chip->ms_show_cnt >= MAX_SHOW_CNT)
 			do_reset_ms_card(chip);
-		} else {
+		else
 			chip->ms_show_cnt++;
-		}
 	}
 }
 
@@ -473,13 +470,12 @@ void card_cd_debounce(struct rtsx_chip *chip, unsigned long *need_reset, unsigne
 				release_map |= MS_CARD;
 		}
 	} else {
-		if (chip->int_reg & XD_EXIST) {
+		if (chip->int_reg & XD_EXIST)
 			reset_map |= XD_CARD;
-		} else if (chip->int_reg & SD_EXIST) {
+		else if (chip->int_reg & SD_EXIST)
 			reset_map |= SD_CARD;
-		} else if (chip->int_reg & MS_EXIST) {
+		else if (chip->int_reg & MS_EXIST)
 			reset_map |= MS_CARD;
-		}
 	}
 
 	if (reset_map) {
@@ -489,21 +485,21 @@ void card_cd_debounce(struct rtsx_chip *chip, unsigned long *need_reset, unsigne
 		for (i = 0; i < (DEBOUNCE_CNT); i++) {
 			chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
 
-			if (chip->int_reg & XD_EXIST) {
+			if (chip->int_reg & XD_EXIST)
 				xd_cnt++;
-			} else {
+			else
 				xd_cnt = 0;
-			}
-			if (chip->int_reg & SD_EXIST) {
+
+			if (chip->int_reg & SD_EXIST)
 				sd_cnt++;
-			} else {
+			else
 				sd_cnt = 0;
-			}
-			if (chip->int_reg & MS_EXIST) {
+
+			if (chip->int_reg & MS_EXIST)
 				ms_cnt++;
-			} else {
+			else
 				ms_cnt = 0;
-			}
+
 			wait_timeout(30);
 		}
 
@@ -677,9 +673,8 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 
 	RTSX_DEBUGP("Switch SSC clock to %dMHz (cur_clk = %d)\n", clk, chip->cur_clk);
 
-	if ((clk <= 2) || (N > max_N)) {
+	if ((clk <= 2) || (N > max_N))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	mcu_cnt = (u8)(125/clk + 3);
 	if (CHECK_PID(chip, 0x5209)) {
@@ -700,32 +695,29 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 	if (chip->ssc_en) {
 		if (CHECK_PID(chip, 0x5209)) {
 			if (chip->cur_card == SD_CARD) {
-				if (CHK_SD_SDR104(sd_card)) {
+				if (CHK_SD_SDR104(sd_card))
 					ssc_depth = chip->ssc_depth_sd_sdr104;
-				} else if (CHK_SD_SDR50(sd_card)) {
+				else if (CHK_SD_SDR50(sd_card))
 					ssc_depth = chip->ssc_depth_sd_sdr50;
-				} else if (CHK_SD_DDR50(sd_card)) {
+				else if (CHK_SD_DDR50(sd_card))
 					ssc_depth = double_depth(chip->ssc_depth_sd_ddr50);
-				} else if (CHK_SD_HS(sd_card)) {
+				else if (CHK_SD_HS(sd_card))
 					ssc_depth = double_depth(chip->ssc_depth_sd_hs);
-				} else if (CHK_MMC_52M(sd_card) || CHK_MMC_DDR52(sd_card)) {
+				else if (CHK_MMC_52M(sd_card) || CHK_MMC_DDR52(sd_card))
 					ssc_depth = double_depth(chip->ssc_depth_mmc_52m);
-				} else {
+				else
 					ssc_depth = double_depth(chip->ssc_depth_low_speed);
-				}
 			} else if (chip->cur_card == MS_CARD) {
 				if (CHK_MSPRO(ms_card)) {
-					if (CHK_HG8BIT(ms_card)) {
+					if (CHK_HG8BIT(ms_card))
 						ssc_depth = double_depth(chip->ssc_depth_ms_hg);
-					} else {
+					else
 						ssc_depth = double_depth(chip->ssc_depth_ms_4bit);
-					}
 				} else {
-					if (CHK_MS4BIT(ms_card)) {
+					if (CHK_MS4BIT(ms_card))
 						ssc_depth = double_depth(chip->ssc_depth_ms_4bit);
-					} else {
+					else
 						ssc_depth = double_depth(chip->ssc_depth_low_speed);
-					}
 				}
 			} else {
 				ssc_depth = double_depth(chip->ssc_depth_low_speed);
@@ -733,23 +725,23 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 
 			if (ssc_depth) {
 				if (div == CLK_DIV_2) {
-					if (ssc_depth > 1) {
+					if (ssc_depth > 1)
 						ssc_depth -= 1;
-					} else {
+					else
 						ssc_depth = SSC_DEPTH_4M;
-					}
+
 				} else if (div == CLK_DIV_4) {
-					if (ssc_depth > 2) {
+					if (ssc_depth > 2)
 						ssc_depth -= 2;
-					} else {
+					else
 						ssc_depth = SSC_DEPTH_4M;
-					}
+
 				} else if (div == CLK_DIV_8) {
-					if (ssc_depth > 3) {
+					if (ssc_depth > 3)
 						ssc_depth -= 3;
-					} else {
+					else
 						ssc_depth = SSC_DEPTH_4M;
-					}
+
 				}
 			}
 		} else {
@@ -760,11 +752,10 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 		ssc_depth = 0;
 	}
 
-	if (CHECK_PID(chip, 0x5209)) {
+	if (CHECK_PID(chip, 0x5209))
 		ssc_depth_mask = SSC_DEPTH_MASK;
-	} else {
+	else
 		ssc_depth_mask = 0x03;
-	}
 
 	RTSX_DEBUGP("ssc_depth = %d\n", ssc_depth);
 
@@ -781,9 +772,8 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 	}
 
 	retval = rtsx_send_cmd(chip, 0, WAIT_TIME);
-	if (retval < 0) {
+	if (retval < 0)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	udelay(10);
 	RTSX_WRITE_REG(chip, CLK_CTL, CLK_LOW_FREQ, 0);
@@ -976,25 +966,23 @@ int card_power_on(struct rtsx_chip *chip, u8 card)
 
 	rtsx_init_cmd(chip);
 	rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, mask, val1);
-	if (CHECK_PID(chip, 0x5209) && (card == SD_CARD)) {
+	if (CHECK_PID(chip, 0x5209) && (card == SD_CARD))
 		rtsx_add_cmd(chip, WRITE_REG_CMD, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_SUSPEND);
-	}
+
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	udelay(chip->pmos_pwr_on_interval);
 
 	rtsx_init_cmd(chip);
 	rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, mask, val2);
-	if (CHECK_PID(chip, 0x5209) && (card == SD_CARD)) {
+	if (CHECK_PID(chip, 0x5209) && (card == SD_CARD))
 		rtsx_add_cmd(chip, WRITE_REG_CMD, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_ON);
-	}
+
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1016,9 +1004,8 @@ int card_power_off(struct rtsx_chip *chip, u8 card)
 	}
 
 	RTSX_WRITE_REG(chip, CARD_PWR_CTL, mask, val);
-	if (CHECK_PID(chip, 0x5209) && (card == SD_CARD)) {
+	if (CHECK_PID(chip, 0x5209) && (card == SD_CARD))
 		RTSX_WRITE_REG(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_OFF);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1029,9 +1016,8 @@ int card_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 sec_addr, u16 sec
 	unsigned int lun = SCSI_LUN(srb);
 	int i;
 
-	if (chip->rw_card[lun] == NULL) {
+	if (chip->rw_card[lun] == NULL)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	for (i = 0; i < 3; i++) {
 		chip->rw_need_retry = 0;
@@ -1042,9 +1028,9 @@ int card_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 sec_addr, u16 sec
 				rtsx_release_chip(chip);
 				TRACE_RET(chip, STATUS_FAIL);
 			}
-			if (detect_card_cd(chip, chip->cur_card) != STATUS_SUCCESS) {
+			if (detect_card_cd(chip, chip->cur_card) != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 			if (!chip->rw_need_retry) {
 				RTSX_DEBUGP("RW fail, but no need to retry\n");
 				break;
@@ -1066,26 +1052,26 @@ int card_share_mode(struct rtsx_chip *chip, int card)
 
 	if (CHECK_PID(chip, 0x5209) || CHECK_PID(chip, 0x5208)) {
 		mask = CARD_SHARE_MASK;
-		if (card == SD_CARD) {
+		if (card == SD_CARD)
 			value = CARD_SHARE_48_SD;
-		} else if (card == MS_CARD) {
+		else if (card == MS_CARD)
 			value = CARD_SHARE_48_MS;
-		} else if (card == XD_CARD) {
+		else if (card == XD_CARD)
 			value = CARD_SHARE_48_XD;
-		} else {
+		else
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	} else if (CHECK_PID(chip, 0x5288)) {
 		mask = 0x03;
-		if (card == SD_CARD) {
+		if (card == SD_CARD)
 			value = CARD_SHARE_BAROSSA_SD;
-		} else if (card == MS_CARD) {
+		else if (card == MS_CARD)
 			value = CARD_SHARE_BAROSSA_MS;
-		} else if (card == XD_CARD) {
+		else if (card == XD_CARD)
 			value = CARD_SHARE_BAROSSA_XD;
-		} else {
+		else
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	} else {
 		TRACE_RET(chip, STATUS_FAIL);
 	}
@@ -1103,24 +1089,23 @@ int select_card(struct rtsx_chip *chip, int card)
 	if (chip->cur_card != card) {
 		u8 mod;
 
-		if (card == SD_CARD) {
+		if (card == SD_CARD)
 			mod = SD_MOD_SEL;
-		} else if (card == MS_CARD) {
+		else if (card == MS_CARD)
 			mod = MS_MOD_SEL;
-		} else if (card == XD_CARD) {
+		else if (card == XD_CARD)
 			mod = XD_MOD_SEL;
-		} else if (card == SPI_CARD) {
+		else if (card == SPI_CARD)
 			mod = SPI_MOD_SEL;
-		} else {
+		else
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		RTSX_WRITE_REG(chip, CARD_SELECT, 0x07, mod);
 		chip->cur_card = card;
 
 		retval =  card_share_mode(chip, card);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1137,20 +1122,18 @@ void toggle_gpio(struct rtsx_chip *chip, u8 gpio)
 
 void turn_on_led(struct rtsx_chip *chip, u8 gpio)
 {
-	if (CHECK_PID(chip, 0x5288)) {
+	if (CHECK_PID(chip, 0x5288))
 		rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio), (u8)(1 << gpio));
-	} else {
+	else
 		rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio), 0);
-	}
 }
 
 void turn_off_led(struct rtsx_chip *chip, u8 gpio)
 {
-	if (CHECK_PID(chip, 0x5288)) {
+	if (CHECK_PID(chip, 0x5288))
 		rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio), 0);
-	} else {
+	else
 		rtsx_write_register(chip, CARD_GPIO, (u8)(1 << gpio), (u8)(1 << gpio));
-	}
 }
 
 int detect_card_cd(struct rtsx_chip *chip, int card)
@@ -1169,67 +1152,60 @@ int detect_card_cd(struct rtsx_chip *chip, int card)
 	}
 
 	status = rtsx_readl(chip, RTSX_BIPR);
-	if (!(status & card_cd)) {
+	if (!(status & card_cd))
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
 
 int check_card_exist(struct rtsx_chip *chip, unsigned int lun)
 {
-	if (chip->card_exist & chip->lun2card[lun]) {
+	if (chip->card_exist & chip->lun2card[lun])
 		return 1;
-	}
 
 	return 0;
 }
 
 int check_card_ready(struct rtsx_chip *chip, unsigned int lun)
 {
-	if (chip->card_ready & chip->lun2card[lun]) {
+	if (chip->card_ready & chip->lun2card[lun])
 		return 1;
-	}
 
 	return 0;
 }
 
 int check_card_wp(struct rtsx_chip *chip, unsigned int lun)
 {
-	if (chip->card_wp & chip->lun2card[lun]) {
+	if (chip->card_wp & chip->lun2card[lun])
 		return 1;
-	}
 
 	return 0;
 }
 
 int check_card_fail(struct rtsx_chip *chip, unsigned int lun)
 {
-	if (chip->card_fail & chip->lun2card[lun]) {
+	if (chip->card_fail & chip->lun2card[lun])
 		return 1;
-	}
 
 	return 0;
 }
 
 int check_card_ejected(struct rtsx_chip *chip, unsigned int lun)
 {
-	if (chip->card_ejected & chip->lun2card[lun]) {
+	if (chip->card_ejected & chip->lun2card[lun])
 		return 1;
-	}
 
 	return 0;
 }
 
 u8 get_lun_card(struct rtsx_chip *chip, unsigned int lun)
 {
-	if ((chip->card_ready & chip->lun2card[lun]) == XD_CARD) {
+	if ((chip->card_ready & chip->lun2card[lun]) == XD_CARD)
 		return (u8)XD_CARD;
-	} else if ((chip->card_ready & chip->lun2card[lun]) == SD_CARD) {
+	else if ((chip->card_ready & chip->lun2card[lun]) == SD_CARD)
 		return (u8)SD_CARD;
-	} else if ((chip->card_ready & chip->lun2card[lun]) == MS_CARD) {
+	else if ((chip->card_ready & chip->lun2card[lun]) == MS_CARD)
 		return (u8)MS_CARD;
-	}
 
 	return 0;
 }
diff --git a/drivers/staging/rts_pstor/rtsx_chip.c b/drivers/staging/rts_pstor/rtsx_chip.c
index 5452069fbe0..d8e691b9902 100644
--- a/drivers/staging/rts_pstor/rtsx_chip.c
+++ b/drivers/staging/rts_pstor/rtsx_chip.c
@@ -105,11 +105,10 @@ void rtsx_enable_bus_int(struct rtsx_chip *chip)
 		reg |= DELINK_INT_EN;
 #ifdef SUPPORT_OCP
 	if (CHECK_PID(chip, 0x5209)) {
-		if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+		if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 			reg |= MS_OC_INT_EN | SD_OC_INT_EN;
-		} else {
+		else
 			reg |= SD_OC_INT_EN;
-		}
 	} else {
 		reg |= OC_INT_EN;
 	}
@@ -186,20 +185,20 @@ static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
 		u8 cd_toggle_mask = 0;
 
 		RTSX_READ_REG(chip, TLPTISTAT, &tmp);
-		if (CHECK_PID(chip, 0x5209)) {
+		if (CHECK_PID(chip, 0x5209))
 			cd_toggle_mask = 0x10;
-		} else {
+		else
 			cd_toggle_mask = 0x08;
-		}
+
 		if (tmp & cd_toggle_mask) {
 			/* Disable sdio_bus_auto_switch */
-			if (CHECK_PID(chip, 0x5288)) {
+			if (CHECK_PID(chip, 0x5288))
 				RTSX_WRITE_REG(chip, 0xFE5A, 0x08, 0x00);
-			} else if (CHECK_PID(chip, 0x5208)) {
+			else if (CHECK_PID(chip, 0x5208))
 				RTSX_WRITE_REG(chip, 0xFE70, 0x80, 0x00);
-			} else {
+			else
 				RTSX_WRITE_REG(chip, SDIO_CFG, SDIO_BUS_AUTO_SWITCH, 0);
-			}
+
 			RTSX_WRITE_REG(chip, TLPTISTAT, 0xFF, tmp);
 
 			chip->need_reset |= SD_CARD;
@@ -208,16 +207,14 @@ static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
 
 			if (chip->asic_code) {
 				retval = sd_pull_ctl_enable(chip);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			} else {
 				RTSX_WRITE_REG(chip, FPGA_PULL_CTL, FPGA_SD_PULL_CTL_BIT | 0x20, 0);
 			}
 			retval = card_share_mode(chip, SD_CARD);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 
 			/* Enable sdio_bus_auto_switch */
 			if (CHECK_PID(chip, 0x5288)) {
@@ -232,11 +229,11 @@ static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
 			chip->sd_io = 1;
 		}
 	} else {
-		if (CHECK_PID(chip, 0x5209)) {
+		if (CHECK_PID(chip, 0x5209))
 			RTSX_WRITE_REG(chip, TLPTISTAT, 0x10, 0x10);
-		} else {
+		else
 			RTSX_WRITE_REG(chip, TLPTISTAT, 0x08, 0x08);
-		}
+
 		chip->need_reset |= SD_CARD;
 	}
 
@@ -257,48 +254,47 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 
 		/* optimize PHY */
 		retval = rtsx_write_phy_register(chip, 0x00, 0xB966);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = rtsx_write_phy_register(chip, 0x01, 0x713F);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = rtsx_write_phy_register(chip, 0x03, 0xA549);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = rtsx_write_phy_register(chip, 0x06, 0xB235);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = rtsx_write_phy_register(chip, 0x07, 0xEF40);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = rtsx_write_phy_register(chip, 0x1E, 0xF8EB);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = rtsx_write_phy_register(chip, 0x19, 0xFE6C);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		wait_timeout(1);
 		retval = rtsx_write_phy_register(chip, 0x0A, 0x05C0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 
 		retval = rtsx_write_cfg_dw(chip, 1, 0x110, 0xFFFF, 0xFFFF);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		retval = rtsx_read_phy_register(chip, 0x08, &val);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		RTSX_DEBUGP("Read from phy 0x08: 0x%04x\n", val);
 
 		if (chip->phy_voltage) {
@@ -308,9 +304,9 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 			val |= chip->phy_voltage;
 			RTSX_DEBUGP("Write to phy 0x08: 0x%04x\n", val);
 			retval = rtsx_write_phy_register(chip, 0x08, val);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 		} else {
 			chip->phy_voltage = (u8)(val & 0x3F);
 			RTSX_DEBUGP("Default, chip->phy_voltage = 0x%x\n", chip->phy_voltage);
@@ -324,11 +320,11 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 
 #ifdef SUPPORT_OCP
 	/* SSC power on, OCD power on */
-	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+	if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 		RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, 0);
-	} else {
+	else
 		RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, MS_OC_POWER_DOWN);
-	}
+
 	if (CHECK_PID(chip, 0x5209)) {
 		RTSX_WRITE_REG(chip, OCPPARA1, SD_OCP_TIME_MASK | MS_OCP_TIME_MASK,
 				    SD_OCP_TIME_800 | MS_OCP_TIME_800);
@@ -352,9 +348,8 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 	RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, OC_POWER_DOWN);
 #endif
 
-	if (!CHECK_PID(chip, 0x5288)) {
+	if (!CHECK_PID(chip, 0x5288))
 		RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0xFF, 0x03);
-	}
 
 	/* Turn off LED */
 	RTSX_WRITE_REG(chip, CARD_GPIO, 0xFF, 0x03);
@@ -364,9 +359,8 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 
 	/* Card driving select */
 	RTSX_WRITE_REG(chip, CARD_DRIVE_SEL, 0xFF, chip->card_drive_sel);
-	if (CHECK_PID(chip, 0x5209)) {
+	if (CHECK_PID(chip, 0x5209))
 		RTSX_WRITE_REG(chip, SD30_DRIVE_SEL, 0x07, chip->sd30_drive_sel_3v3);
-	}
 
 #ifdef LED_AUTO_BLINK
 	RTSX_WRITE_REG(chip, CARD_AUTO_BLINK, 0xFF,
@@ -394,36 +388,34 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 			if (CHK_SDIO_EXIST(chip)) {
 				if (CHECK_PID(chip, 0x5209)) {
 					retval = rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
-					if (retval != STATUS_SUCCESS) {
+					if (retval != STATUS_SUCCESS)
 						TRACE_RET(chip, STATUS_FAIL);
-					}
+
 				} else if (CHECK_PID(chip, 0x5288)) {
 					retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
-					if (retval != STATUS_SUCCESS) {
+					if (retval != STATUS_SUCCESS)
 						TRACE_RET(chip, STATUS_FAIL);
-					}
 				}
 			}
 		} else {
-			if (CHECK_PID(chip, 0x5208)) {
+			if (CHECK_PID(chip, 0x5208))
 				RTSX_WRITE_REG(chip, ASPM_FORCE_CTL, 0xFF, 0x3F);
-			}
 
 			retval = rtsx_write_config_byte(chip, LCTLR, chip->aspm_l0s_l1_en);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 			chip->aspm_level[0] = chip->aspm_l0s_l1_en;
 			if (CHK_SDIO_EXIST(chip)) {
 				chip->aspm_level[1] = chip->aspm_l0s_l1_en;
-				if (CHECK_PID(chip, 0x5288)) {
+				if (CHECK_PID(chip, 0x5288))
 					retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
-				} else {
+				else
 					retval = rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
-				}
-				if (retval != STATUS_SUCCESS) {
+
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 			}
 
 			chip->aspm_enabled = 1;
@@ -431,49 +423,45 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 	} else {
 		if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
 			retval = rtsx_write_phy_register(chip, 0x07, 0x0129);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 		retval = rtsx_write_config_byte(chip, LCTLR, chip->aspm_l0s_l1_en);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	retval = rtsx_write_config_byte(chip, 0x81, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (CHK_SDIO_EXIST(chip)) {
-		if (CHECK_PID(chip, 0x5288)) {
+		if (CHECK_PID(chip, 0x5288))
 			retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF00, 0x0100);
-		} else {
+		else
 			retval = rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFF00, 0x0100);
-		}
-		if (retval != STATUS_SUCCESS) {
+
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	}
 
 	if (CHECK_PID(chip, 0x5209)) {
 		retval = rtsx_write_cfg_dw(chip, 0, 0x70C, 0xFF000000, 0x5B);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	if (CHECK_PID(chip, 0x5288)) {
 		if (!CHK_SDIO_EXIST(chip)) {
 			retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFFFF, 0x0103);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 			retval = rtsx_write_cfg_dw(chip, 2, 0x84, 0xFF, 0x03);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 		}
 	}
 
@@ -499,29 +487,29 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 			if (chip->ic_version >= IC_VER_D) {
 				u16 reg;
 				retval = rtsx_read_phy_register(chip, 0x00, &reg);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 				reg &= 0xFE7F;
 				reg |= 0x80;
 				retval = rtsx_write_phy_register(chip, 0x00, reg);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 				retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 				reg &= 0xFFF7;
 				retval = rtsx_write_phy_register(chip, 0x1C, reg);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 			}
 
-			if (chip->driver_first_load && (chip->ic_version < IC_VER_C)) {
+			if (chip->driver_first_load && (chip->ic_version < IC_VER_C))
 				rtsx_calibration(chip);
-			}
+
 		} else {
 			rtsx_enable_bus_int(chip);
 		}
@@ -550,18 +538,18 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 	RTSX_DEBUGP("In rtsx_reset_chip, chip->int_reg = 0x%x\n", chip->int_reg);
 	if (chip->int_reg & SD_EXIST) {
 #ifdef HW_AUTO_SWITCH_SD_BUS
-		if (CHECK_PID(chip, 0x5208) && (chip->ic_version < IC_VER_C)) {
+		if (CHECK_PID(chip, 0x5208) && (chip->ic_version < IC_VER_C))
 			retval = rtsx_pre_handle_sdio_old(chip);
-		} else {
+		else
 			retval = rtsx_pre_handle_sdio_new(chip);
-		}
+
 		RTSX_DEBUGP("chip->need_reset = 0x%x (rtsx_reset_chip)\n", (unsigned int)(chip->need_reset));
 #else  /* HW_AUTO_SWITCH_SD_BUS */
 		retval = rtsx_pre_handle_sdio_old(chip);
 #endif  /* HW_AUTO_SWITCH_SD_BUS */
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	} else {
 		chip->sd_io = 0;
 		RTSX_WRITE_REG(chip, SDIO_CTRL, SDIO_BUS_CTRL | SDIO_CD_CTRL, 0);
@@ -572,9 +560,8 @@ NextCard:
 		chip->need_reset |= XD_CARD;
 	if (chip->int_reg & MS_EXIST)
 		chip->need_reset |= MS_CARD;
-	if (chip->int_reg & CARD_EXIST) {
+	if (chip->int_reg & CARD_EXIST)
 		RTSX_WRITE_REG(chip, SSC_CTL1, SSC_RSTB, SSC_RSTB);
-	}
 
 	RTSX_DEBUGP("In rtsx_init_chip, chip->need_reset = 0x%x\n", (unsigned int)(chip->need_reset));
 
@@ -587,9 +574,8 @@ NextCard:
 
 	if (chip->remote_wakeup_en && !chip->auto_delink_en) {
 		RTSX_WRITE_REG(chip, WAKE_SEL_CTL, 0x07, 0x07);
-		if (chip->aux_pwr_exist) {
+		if (chip->aux_pwr_exist)
 			RTSX_WRITE_REG(chip, PME_FORCE_CTL, 0xFF, 0x33);
-		}
 	} else {
 		RTSX_WRITE_REG(chip, WAKE_SEL_CTL, 0x07, 0x04);
 		RTSX_WRITE_REG(chip, PME_FORCE_CTL, 0xFF, 0x30);
@@ -598,18 +584,16 @@ NextCard:
 	if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D)) {
 		RTSX_WRITE_REG(chip, PETXCFG, 0x1C, 0x14);
 	} else if (CHECK_PID(chip, 0x5209)) {
-		if (chip->force_clkreq_0) {
+		if (chip->force_clkreq_0)
 			RTSX_WRITE_REG(chip, PETXCFG, 0x08, 0x08);
-		} else {
+		else
 			RTSX_WRITE_REG(chip, PETXCFG, 0x08, 0x00);
-		}
 	}
 
 	if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
 		retval = rtsx_clr_phy_reg_bit(chip, 0x1C, 2);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	if (chip->ft2_fast_mode) {
@@ -665,11 +649,10 @@ static int rts5209_init(struct rtsx_chip *chip)
 	u8 val = 0;
 
 	val = rtsx_readb(chip, 0x1C);
-	if ((val & 0x10) == 0) {
+	if ((val & 0x10) == 0)
 		chip->asic_code = 1;
-	} else {
+	else
 		chip->asic_code = 0;
-	}
 
 	chip->ic_version = val & 0x0F;
 	chip->phy_debug_mode = 0;
@@ -679,9 +662,9 @@ static int rts5209_init(struct rtsx_chip *chip)
 	chip->ms_power_class_en = 0x03;
 
 	retval = rtsx_read_cfg_dw(chip, 0, 0x724, &lval);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	RTSX_DEBUGP("dw in 0x724: 0x%x\n", lval);
 	val = (u8)lval;
 	if (!(val & 0x80)) {
@@ -690,17 +673,16 @@ static int rts5209_init(struct rtsx_chip *chip)
 		else
 			chip->lun_mode = SD_MS_2LUN;
 
-		if (val & 0x04) {
+		if (val & 0x04)
 			SET_SDIO_EXIST(chip);
-		} else {
+		else
 			CLR_SDIO_EXIST(chip);
-		}
 
-		if (val & 0x02) {
+		if (val & 0x02)
 			chip->hw_bypass_sd = 0;
-		} else {
+		else
 			chip->hw_bypass_sd = 1;
-		}
+
 	} else {
 		SET_SDIO_EXIST(chip);
 		chip->hw_bypass_sd = 0;
@@ -714,24 +696,21 @@ static int rts5209_init(struct rtsx_chip *chip)
 		val = (u8)(lval >> 8);
 
 		clk = (val >> 5) & 0x07;
-		if (clk != 0x07) {
+		if (clk != 0x07)
 			chip->asic_sd_sdr50_clk = 98 - clk * 2;
-		}
 
-		if (val & 0x10) {
+		if (val & 0x10)
 			chip->auto_delink_en = 1;
-		} else {
+		else
 			chip->auto_delink_en = 0;
-		}
 
 		if (chip->ss_en == 2) {
 			chip->ss_en = 0;
 		} else {
-			if (val & 0x08) {
+			if (val & 0x08)
 				chip->ss_en = 1;
-			} else {
+			else
 				chip->ss_en = 0;
-			}
 		}
 
 		clk = val & 0x07;
@@ -750,21 +729,21 @@ static int rts5209_init(struct rtsx_chip *chip)
 		if (clk != 0x03)
 			chip->asic_sd_ddr50_clk = (48 - clk * 2) * 2;
 
-		if (val & 0x01) {
+		if (val & 0x01)
 			chip->sdr104_en = 1;
-		} else {
+		else
 			chip->sdr104_en = 0;
-		}
-		if (val & 0x02) {
+
+		if (val & 0x02)
 			chip->ddr50_en = 1;
-		} else {
+		else
 			chip->ddr50_en = 0;
-		}
-		if (val & 0x04) {
+
+		if (val & 0x04)
 			chip->sdr50_en = 1;
-		} else {
+		else
 			chip->sdr50_en = 0;
-		}
+
 
 		val = (u8)(lval >> 24);
 
@@ -772,11 +751,10 @@ static int rts5209_init(struct rtsx_chip *chip)
 		if (clk != 0x07)
 			chip->asic_sd_sdr104_clk = 206 - clk * 3;
 
-		if (val & 0x10) {
+		if (val & 0x10)
 			chip->power_down_in_ss = 1;
-		} else {
+		else
 			chip->power_down_in_ss = 0;
-		}
 
 		chip->ms_power_class_en = val & 0x03;
 	}
@@ -786,20 +764,19 @@ static int rts5209_init(struct rtsx_chip *chip)
 
 		retval = rtsx_read_pci_cfg_byte(0x00,
 						0x1C, 0x02, 0x58, &reg58);
-		if (retval < 0) {
+		if (retval < 0)
 			return STATUS_SUCCESS;
-		}
+
 		retval = rtsx_read_pci_cfg_byte(0x00,
 						0x1C, 0x02, 0x5B, &reg5b);
-		if (retval < 0) {
+		if (retval < 0)
 			return STATUS_SUCCESS;
-		}
 
 		RTSX_DEBUGP("reg58 = 0x%x, reg5b = 0x%x\n", reg58, reg5b);
 
-		if ((reg58 == 0x00) && (reg5b == 0x01)) {
+		if ((reg58 == 0x00) && (reg5b == 0x01))
 			chip->auto_delink_en = 0;
-		}
+
 	}
 
 	return STATUS_SUCCESS;
@@ -813,24 +790,23 @@ static int rts5208_init(struct rtsx_chip *chip)
 
 	RTSX_WRITE_REG(chip, CLK_SEL, 0x03, 0x03);
 	RTSX_READ_REG(chip, CLK_SEL, &val);
-	if (val == 0) {
+	if (val == 0)
 		chip->asic_code = 1;
-	} else {
+	else
 		chip->asic_code = 0;
-	}
 
 	if (chip->asic_code) {
 		retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		RTSX_DEBUGP("Value of phy register 0x1C is 0x%x\n", reg);
 		chip->ic_version = (reg >> 4) & 0x07;
-		if (reg & PHY_DEBUG_MODE) {
+		if (reg & PHY_DEBUG_MODE)
 			chip->phy_debug_mode = 1;
-		} else {
+		else
 			chip->phy_debug_mode = 0;
-		}
+
 	} else {
 		RTSX_READ_REG(chip, 0xFE80, &val);
 		chip->ic_version = val;
@@ -839,33 +815,29 @@ static int rts5208_init(struct rtsx_chip *chip)
 
 	RTSX_READ_REG(chip, PDINFO, &val);
 	RTSX_DEBUGP("PDINFO: 0x%x\n", val);
-	if (val & AUX_PWR_DETECTED) {
+	if (val & AUX_PWR_DETECTED)
 		chip->aux_pwr_exist = 1;
-	} else {
+	else
 		chip->aux_pwr_exist = 0;
-	}
 
 	RTSX_READ_REG(chip, 0xFE50, &val);
-	if (val & 0x01) {
+	if (val & 0x01)
 		chip->hw_bypass_sd = 1;
-	} else {
+	else
 		chip->hw_bypass_sd = 0;
-	}
 
 	rtsx_read_config_byte(chip, 0x0E, &val);
-	if (val & 0x80) {
+	if (val & 0x80)
 		SET_SDIO_EXIST(chip);
-	} else {
+	else
 		CLR_SDIO_EXIST(chip);
-	}
 
 	if (chip->use_hw_setting) {
 		RTSX_READ_REG(chip, CHANGE_LINK_STATE, &val);
-		if (val & 0x80) {
+		if (val & 0x80)
 			chip->auto_delink_en = 1;
-		} else {
+		else
 			chip->auto_delink_en = 0;
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -879,63 +851,57 @@ static int rts5288_init(struct rtsx_chip *chip)
 
 	RTSX_WRITE_REG(chip, CLK_SEL, 0x03, 0x03);
 	RTSX_READ_REG(chip, CLK_SEL, &val);
-	if (val == 0) {
+	if (val == 0)
 		chip->asic_code = 1;
-	} else {
+	else
 		chip->asic_code = 0;
-	}
 
 	chip->ic_version = 0;
 	chip->phy_debug_mode = 0;
 
 	RTSX_READ_REG(chip, PDINFO, &val);
 	RTSX_DEBUGP("PDINFO: 0x%x\n", val);
-	if (val & AUX_PWR_DETECTED) {
+	if (val & AUX_PWR_DETECTED)
 		chip->aux_pwr_exist = 1;
-	} else {
+	else
 		chip->aux_pwr_exist = 0;
-	}
 
 	RTSX_READ_REG(chip, CARD_SHARE_MODE, &val);
 	RTSX_DEBUGP("CARD_SHARE_MODE: 0x%x\n", val);
-	if (val & 0x04) {
+	if (val & 0x04)
 		chip->baro_pkg = QFN;
-	} else {
+	else
 		chip->baro_pkg = LQFP;
-	}
 
 	RTSX_READ_REG(chip, 0xFE5A, &val);
-	if (val & 0x10) {
+	if (val & 0x10)
 		chip->hw_bypass_sd = 1;
-	} else {
+	else
 		chip->hw_bypass_sd = 0;
-	}
 
 	retval = rtsx_read_cfg_dw(chip, 0, 0x718, &lval);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	max_func = (u8)((lval >> 29) & 0x07);
 	RTSX_DEBUGP("Max function number: %d\n", max_func);
-	if (max_func == 0x02) {
+	if (max_func == 0x02)
 		SET_SDIO_EXIST(chip);
-	} else {
+	else
 		CLR_SDIO_EXIST(chip);
-	}
 
 	if (chip->use_hw_setting) {
 		RTSX_READ_REG(chip, CHANGE_LINK_STATE, &val);
-		if (val & 0x80) {
+		if (val & 0x80)
 			chip->auto_delink_en = 1;
-		} else {
+		else
 			chip->auto_delink_en = 0;
-		}
 
-		if (CHECK_BARO_PKG(chip, LQFP)) {
+		if (CHECK_BARO_PKG(chip, LQFP))
 			chip->lun_mode = SD_MS_1LUN;
-		} else {
+		else
 			chip->lun_mode = DEFAULT_SINGLE;
-		}
+
 	}
 
 	return STATUS_SUCCESS;
@@ -990,22 +956,21 @@ int rtsx_init_chip(struct rtsx_chip *chip)
 		chip->rw_fail_cnt[i] = 0;
 	}
 
-	if (!check_sd_speed_prior(chip->sd_speed_prior)) {
+	if (!check_sd_speed_prior(chip->sd_speed_prior))
 		chip->sd_speed_prior = 0x01040203;
-	}
+
 	RTSX_DEBUGP("sd_speed_prior = 0x%08x\n", chip->sd_speed_prior);
 
-	if (!check_sd_current_prior(chip->sd_current_prior)) {
+	if (!check_sd_current_prior(chip->sd_current_prior))
 		chip->sd_current_prior = 0x00010203;
-	}
+
 	RTSX_DEBUGP("sd_current_prior = 0x%08x\n", chip->sd_current_prior);
 
-	if ((chip->sd_ddr_tx_phase > 31) || (chip->sd_ddr_tx_phase < 0)) {
+	if ((chip->sd_ddr_tx_phase > 31) || (chip->sd_ddr_tx_phase < 0))
 		chip->sd_ddr_tx_phase = 0;
-	}
-	if ((chip->mmc_ddr_tx_phase > 31) || (chip->mmc_ddr_tx_phase < 0)) {
+
+	if ((chip->mmc_ddr_tx_phase > 31) || (chip->mmc_ddr_tx_phase < 0))
 		chip->mmc_ddr_tx_phase = 0;
-	}
 
 	RTSX_WRITE_REG(chip, FPDCTL, SSC_POWER_DOWN, 0);
 	wait_timeout(200);
@@ -1014,24 +979,23 @@ int rtsx_init_chip(struct rtsx_chip *chip)
 
 	if (CHECK_PID(chip, 0x5209)) {
 		retval = rts5209_init(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	} else if (CHECK_PID(chip, 0x5208)) {
 		retval = rts5208_init(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	} else if (CHECK_PID(chip, 0x5288)) {
 		retval = rts5288_init(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 	}
 
-	if (chip->ss_en == 2) {
+	if (chip->ss_en == 2)
 		chip->ss_en = 0;
-	}
 
 	RTSX_DEBUGP("chip->asic_code = %d\n", chip->asic_code);
 	RTSX_DEBUGP("chip->ic_version = 0x%x\n", chip->ic_version);
@@ -1068,9 +1032,8 @@ int rtsx_init_chip(struct rtsx_chip *chip)
 	}
 
 	retval = rtsx_reset_chip(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1118,19 +1081,19 @@ static void rtsx_monitor_aspm_config(struct rtsx_chip *chip)
 			chip->aspm_level[1] = reg1;
 		}
 
-		if ((reg0 & 0x03) && (reg1 & 0x03)) {
+		if ((reg0 & 0x03) && (reg1 & 0x03))
 			maybe_support_aspm = 1;
-		}
+
 	} else {
-		if (reg0 & 0x03) {
+		if (reg0 & 0x03)
 			maybe_support_aspm = 1;
-		}
+
 	}
 
 	if (reg_changed) {
-		if (maybe_support_aspm) {
+		if (maybe_support_aspm)
 			chip->aspm_l0s_l1_en = 0x03;
-		}
+
 		RTSX_DEBUGP("aspm_level[0] = 0x%02x, aspm_level[1] = 0x%02x\n",
 			      chip->aspm_level[0], chip->aspm_level[1]);
 
@@ -1177,13 +1140,13 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 			if (chip->ocp_int & MS_OC_INT)
 				ms_power_off_card3v3(chip);
 		} else {
-			if (chip->card_exist & SD_CARD) {
+			if (chip->card_exist & SD_CARD)
 				sd_power_off_card3v3(chip);
-			} else if (chip->card_exist & MS_CARD) {
+			else if (chip->card_exist & MS_CARD)
 				ms_power_off_card3v3(chip);
-			} else if (chip->card_exist & XD_CARD) {
+			else if (chip->card_exist & XD_CARD)
 				xd_power_off_card3v3(chip);
-			}
+
 		}
 
 		chip->ocp_int = 0;
@@ -1226,9 +1189,9 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 			if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
 				u32 val;
 				rtsx_read_cfg_dw(chip, 1, 0x04, &val);
-				if (val & 0x07) {
+				if (val & 0x07)
 					ss_allowed = 0;
-				}
+
 			}
 		}
 	} else {
@@ -1284,9 +1247,9 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 
 			turn_off_led(chip, LED_GPIO);
 
-			if (chip->auto_power_down && !chip->card_ready && !chip->sd_io) {
+			if (chip->auto_power_down && !chip->card_ready && !chip->sd_io)
 				rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
-			}
+
 		}
 	}
 
@@ -1299,9 +1262,9 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 		break;
 
 	case RTSX_STAT_IDLE:
-		if (chip->sd_io && !chip->sd_int) {
+		if (chip->sd_io && !chip->sd_int)
 			try_to_switch_sdio_ctrl(chip);
-		}
+
 		rtsx_enable_aspm(chip);
 		break;
 
@@ -1313,9 +1276,8 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 #ifdef SUPPORT_OCP
 	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
 #ifdef CONFIG_RTS_PSTOR_DEBUG
-		if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER | MS_OC_NOW | MS_OC_EVER)) {
+		if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER | MS_OC_NOW | MS_OC_EVER))
 			RTSX_DEBUGP("Over current, OCPSTAT is 0x%x\n", chip->ocp_stat);
-		}
 #endif
 
 		if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
@@ -1362,28 +1324,27 @@ Delink_Stage:
 			if (chip->auto_delink_cnt == delink_stage1_cnt) {
 				rtsx_set_stat(chip, RTSX_STAT_DELINK);
 
-				if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
+				if (chip->asic_code && CHECK_PID(chip, 0x5208))
 					rtsx_set_phy_reg_bit(chip, 0x1C, 2);
-				}
+
 				if (chip->card_exist) {
 					RTSX_DEBUGP("False card inserted, do force delink\n");
 
-					if (enter_L1) {
+					if (enter_L1)
 						rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 1);
-					}
+
 					rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0x0A);
 
-					if (enter_L1) {
+					if (enter_L1)
 						rtsx_enter_L1(chip);
-					}
 
 					chip->auto_delink_cnt = delink_stage3_cnt + 1;
 				} else {
 					RTSX_DEBUGP("No card inserted, do delink\n");
 
-					if (enter_L1) {
+					if (enter_L1)
 						rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 1);
-					}
+
 #ifdef HW_INT_WRITE_CLR
 					if (CHECK_PID(chip, 0x5209)) {
 						rtsx_writel(chip, RTSX_BIPR, 0xFFFFFFFF);
@@ -1392,22 +1353,21 @@ Delink_Stage:
 #endif
 					rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 0x02);
 
-					if (enter_L1) {
+					if (enter_L1)
 						rtsx_enter_L1(chip);
-					}
+
 				}
 			}
 
 			if (chip->auto_delink_cnt == delink_stage2_cnt) {
 				RTSX_DEBUGP("Try to do force delink\n");
 
-				if (enter_L1) {
+				if (enter_L1)
 					rtsx_exit_L1(chip);
-				}
 
-				if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
+				if (chip->asic_code && CHECK_PID(chip, 0x5208))
 					rtsx_set_phy_reg_bit(chip, 0x1C, 2);
-				}
+
 				rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0x0A);
 			}
 
@@ -1472,9 +1432,9 @@ int rtsx_write_register(struct rtsx_chip *chip, u16 addr, u8 mask, u8 data)
 	for (i = 0; i < MAX_RW_REG_CNT; i++) {
 		val = rtsx_readl(chip, RTSX_HAIMR);
 		if ((val & (1 << 31)) == 0) {
-			if (data != (u8)val) {
+			if (data != (u8)val)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
+
 			return STATUS_SUCCESS;
 		}
 	}
@@ -1487,9 +1447,8 @@ int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
 	u32 val = 2 << 30;
 	int i;
 
-	if (data) {
+	if (data)
 		*data = 0;
-	}
 
 	val |= (u32)(addr & 0x3FFF) << 16;
 
@@ -1497,18 +1456,15 @@ int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
 
 	for (i = 0; i < MAX_RW_REG_CNT; i++) {
 		val = rtsx_readl(chip, RTSX_HAIMR);
-		if ((val & (1 << 31)) == 0) {
+		if ((val & (1 << 31)) == 0)
 			break;
-		}
 	}
 
-	if (i >= MAX_RW_REG_CNT) {
+	if (i >= MAX_RW_REG_CNT)
 		TRACE_RET(chip, STATUS_TIMEDOUT);
-	}
 
-	if (data) {
+	if (data)
 		*data = (u8)(val & 0xFF);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1537,9 +1493,8 @@ int rtsx_write_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 mask, u3
 
 		for (i = 0; i < MAX_RW_REG_CNT; i++) {
 			RTSX_READ_REG(chip, CFGRWCTL, &tmp);
-			if ((tmp & 0x80) == 0) {
+			if ((tmp & 0x80) == 0)
 				break;
-			}
 		}
 	}
 
@@ -1558,9 +1513,8 @@ int rtsx_read_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 *val)
 
 	for (i = 0; i < MAX_RW_REG_CNT; i++) {
 		RTSX_READ_REG(chip, CFGRWCTL, &tmp);
-		if ((tmp & 0x80) == 0) {
+		if ((tmp & 0x80) == 0)
 			break;
-		}
 	}
 
 	for (i = 0; i < 4; i++) {
@@ -1568,9 +1522,8 @@ int rtsx_read_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 *val)
 		data |= (u32)tmp << (i * 8);
 	}
 
-	if (val) {
+	if (val)
 		*val = data;
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1585,21 +1538,19 @@ int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf, int l
 
 	RTSX_DEBUGP("%s\n", __func__);
 
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, STATUS_NOMEM);
-	}
 
-	if ((len + offset) % 4) {
+	if ((len + offset) % 4)
 		dw_len = (len + offset) / 4 + 1;
-	} else {
+	else
 		dw_len = (len + offset) / 4;
-	}
+
 	RTSX_DEBUGP("dw_len = %d\n", dw_len);
 
 	data = vzalloc(dw_len * 4);
-	if (!data) {
+	if (!data)
 		TRACE_RET(chip, STATUS_NOMEM);
-	}
 
 	mask = vzalloc(dw_len * 4);
 	if (!mask) {
@@ -1645,17 +1596,16 @@ int rtsx_read_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf, int le
 
 	RTSX_DEBUGP("%s\n", __func__);
 
-	if ((len + offset) % 4) {
+	if ((len + offset) % 4)
 		dw_len = (len + offset) / 4 + 1;
-	} else {
+	else
 		dw_len = (len + offset) / 4;
-	}
+
 	RTSX_DEBUGP("dw_len = %d\n", dw_len);
 
 	data = (u32 *)vmalloc(dw_len * 4);
-	if (!data) {
+	if (!data)
 		TRACE_RET(chip, STATUS_NOMEM);
-	}
 
 	for (i = 0; i < dw_len; i++) {
 		retval = rtsx_read_cfg_dw(chip, func, aligned_addr + i * 4, data + i);
@@ -1700,9 +1650,8 @@ int rtsx_write_phy_register(struct rtsx_chip *chip, u8 addr, u16 val)
 		}
 	}
 
-	if (!finished) {
+	if (!finished)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1724,9 +1673,8 @@ int rtsx_read_phy_register(struct rtsx_chip *chip, u8 addr, u16 *val)
 		}
 	}
 
-	if (!finished) {
+	if (!finished)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_READ_REG(chip, PHYDATA0, &tmp);
 	data = tmp;
@@ -1753,9 +1701,8 @@ int rtsx_read_efuse(struct rtsx_chip *chip, u8 addr, u8 *val)
 		udelay(1);
 	}
 
-	if (data & 0x80) {
+	if (data & 0x80)
 		TRACE_RET(chip, STATUS_TIMEDOUT);
-	}
 
 	RTSX_READ_REG(chip, EFUSE_DATA, &data);
 	if (val)
@@ -1786,9 +1733,8 @@ int rtsx_write_efuse(struct rtsx_chip *chip, u8 addr, u8 val)
 			wait_timeout(3);
 		}
 
-		if (data & 0x80) {
+		if (data & 0x80)
 			TRACE_RET(chip, STATUS_TIMEDOUT);
-		}
 
 		wait_timeout(5);
 	}
@@ -1802,15 +1748,14 @@ int rtsx_clr_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
 	u16 value;
 
 	retval = rtsx_read_phy_register(chip, reg, &value);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	if (value & (1 << bit)) {
 		value &= ~(1 << bit);
 		retval = rtsx_write_phy_register(chip, reg, value);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1822,15 +1767,14 @@ int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
 	u16 value;
 
 	retval = rtsx_read_phy_register(chip, reg, &value);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	if (0 == (value & (1 << bit))) {
 		value |= (1 << bit);
 		retval = rtsx_write_phy_register(chip, reg, value);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1861,11 +1805,11 @@ static void rtsx_handle_pm_dstate(struct rtsx_chip *chip, u8 dstate)
 	if (CHK_SDIO_EXIST(chip)) {
 		u8 func_no;
 
-		if (CHECK_PID(chip, 0x5288)) {
+		if (CHECK_PID(chip, 0x5288))
 			func_no = 2;
-		} else {
+		else
 			func_no = 1;
-		}
+
 		rtsx_read_cfg_dw(chip, func_no, 0x84, &ultmp);
 		RTSX_DEBUGP("pm_dstate of function %d: 0x%x\n", (int)func_no, ultmp);
 		rtsx_write_cfg_dw(chip, func_no, 0x84, 0xFF, dstate);
@@ -1898,11 +1842,10 @@ void rtsx_enter_ss(struct rtsx_chip *chip)
 	}
 
 	if (CHK_SDIO_EXIST(chip)) {
-		if (CHECK_PID(chip, 0x5288)) {
+		if (CHECK_PID(chip, 0x5288))
 			rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF00, 0x0100);
-		} else {
+		else
 			rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFF00, 0x0100);
-		}
 	}
 
 	if (chip->auto_delink_en) {
@@ -1953,11 +1896,11 @@ int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
 	u32 ocp_int = 0;
 
 	if (CHECK_PID(chip, 0x5209)) {
-		if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+		if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 			ocp_int = MS_OC_INT | SD_OC_INT;
-		} else {
+		else
 			ocp_int = SD_OC_INT;
-		}
+
 	} else {
 		ocp_int = OC_INT;
 	}
@@ -1976,9 +1919,8 @@ int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
 	chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
 
 #ifdef HW_INT_WRITE_CLR
-	if (CHECK_PID(chip, 0x5209)) {
+	if (CHECK_PID(chip, 0x5209))
 		rtsx_writel(chip, RTSX_BIPR, chip->int_reg);
-	}
 #endif
 
 	if (((chip->int_reg & int_enable) == 0) || (chip->int_reg == 0xFFFFFFFF))
@@ -1988,9 +1930,8 @@ int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
 		if (CHECK_PID(chip, 0x5209)) {
 			u8 val;
 			rtsx_read_config_byte(chip, 0x05, &val);
-			if (val & 0x04) {
+			if (val & 0x04)
 				return STATUS_FAIL;
-			}
 		}
 	}
 
@@ -2107,16 +2048,15 @@ void rtsx_do_before_power_down(struct rtsx_chip *chip, int pm_stat)
 		RTSX_DEBUGP("Host enter S1\n");
 		rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, HOST_ENTER_S1);
 	} else if (pm_stat == PM_S3) {
-		if (chip->s3_pwr_off_delay > 0) {
+		if (chip->s3_pwr_off_delay > 0)
 			wait_timeout(chip->s3_pwr_off_delay);
-		}
+
 		RTSX_DEBUGP("Host enter S3\n");
 		rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, HOST_ENTER_S3);
 	}
 
-	if (chip->do_delink_before_power_down && chip->auto_delink_en) {
+	if (chip->do_delink_before_power_down && chip->auto_delink_en)
 		rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 2);
-	}
 
 	rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
 
@@ -2143,11 +2083,10 @@ void rtsx_enable_aspm(struct rtsx_chip *chip)
 
 			if (CHK_SDIO_EXIST(chip)) {
 				u16 val = chip->aspm_l0s_l1_en | 0x0100;
-				if (CHECK_PID(chip, 0x5288)) {
+				if (CHECK_PID(chip, 0x5288))
 					rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFFFF, val);
-				} else {
+				else
 					rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFFFF, val);
-				}
 			}
 		}
 	}
@@ -2167,11 +2106,11 @@ void rtsx_disable_aspm(struct rtsx_chip *chip)
 
 			if (chip->asic_code && CHECK_PID(chip, 0x5208))
 				rtsx_write_phy_register(chip, 0x07, 0x0129);
-			if (CHECK_PID(chip, 0x5208)) {
+			if (CHECK_PID(chip, 0x5208))
 				rtsx_write_register(chip, ASPM_FORCE_CTL, 0xF3, 0x30);
-			} else {
+			else
 				rtsx_write_config_byte(chip, LCTLR, 0x00);
-			}
+
 			wait_timeout(1);
 		}
 	}
@@ -2186,9 +2125,8 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 	u16 reg_addr;
 	u8 *ptr;
 
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	ptr = buf;
 	reg_addr = PPBUF_BASE2;
@@ -2199,9 +2137,8 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0) {
+		if (retval < 0)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		memcpy(ptr, rtsx_get_cmd_data(chip), 256);
 		ptr += 256;
@@ -2214,9 +2151,8 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0) {
+		if (retval < 0)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	memcpy(ptr, rtsx_get_cmd_data(chip), buf_len%256);
@@ -2231,9 +2167,8 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 	u16 reg_addr;
 	u8 *ptr;
 
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, STATUS_ERROR);
-	}
 
 	ptr = buf;
 	reg_addr = PPBUF_BASE2;
@@ -2246,9 +2181,8 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 		}
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0) {
+		if (retval < 0)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	if (buf_len%256) {
@@ -2260,9 +2194,8 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 		}
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0) {
+		if (retval < 0)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -2270,9 +2203,8 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 
 int rtsx_check_chip_exist(struct rtsx_chip *chip)
 {
-	if (rtsx_readl(chip, 0) == 0xFFFFFFFF) {
+	if (rtsx_readl(chip, 0) == 0xFFFFFFFF)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2288,17 +2220,15 @@ int rtsx_force_power_on(struct rtsx_chip *chip, u8 ctl)
 #ifdef SUPPORT_OCP
 	if (ctl & OC_PDCTL) {
 		mask |= SD_OC_POWER_DOWN;
-		if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+		if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 			mask |= MS_OC_POWER_DOWN;
-		}
 	}
 #endif
 
 	if (mask) {
 		retval = rtsx_write_register(chip, FPDCTL, mask, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (CHECK_PID(chip, 0x5288))
 			wait_timeout(200);
@@ -2326,9 +2256,8 @@ int rtsx_force_power_down(struct rtsx_chip *chip, u8 ctl)
 	if (mask) {
 		val = mask;
 		retval = rtsx_write_register(chip, FPDCTL, mask, val);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
diff --git a/drivers/staging/rts_pstor/rtsx_scsi.c b/drivers/staging/rts_pstor/rtsx_scsi.c
index f2e5842d4c9..86c41b3a42a 100644
--- a/drivers/staging/rts_pstor/rtsx_scsi.c
+++ b/drivers/staging/rts_pstor/rtsx_scsi.c
@@ -135,9 +135,9 @@ void scsi_show_command(struct scsi_cmnd *srb)
 	default: what = "(unknown command)"; unknown_cmd = 1; break;
 	}
 
-	if (srb->cmnd[0] != TEST_UNIT_READY) {
+	if (srb->cmnd[0] != TEST_UNIT_READY)
 		RTSX_DEBUGP("Command %s (%d bytes)\n", what, srb->cmd_len);
-	}
+
 	if (unknown_cmd) {
 		RTSX_DEBUGP("");
 		for (i = 0; i < srb->cmd_len && i < 16; i++)
@@ -317,11 +317,11 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	};
 
 	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
-		if (chip->lun2card[lun] == SD_CARD) {
+		if (chip->lun2card[lun] == SD_CARD)
 			inquiry_string = inquiry_sd;
-		} else {
+		else
 			inquiry_string = inquiry_ms;
-		}
+
 	} else if (CHECK_LUN_MODE(chip, SD_MS_1LUN)) {
 		inquiry_string = inquiry_sdms;
 	} else {
@@ -329,9 +329,8 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = vmalloc(scsi_bufflen(srb));
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 #ifdef SUPPORT_MAGIC_GATE
 	if ((chip->mspro_formatter_enable) &&
@@ -340,23 +339,21 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (chip->mspro_formatter_enable)
 #endif
 	{
-		if (!card || (card == MS_CARD)) {
+		if (!card || (card == MS_CARD))
 			pro_formatter_flag = 1;
-		}
 	}
 
 	if (pro_formatter_flag) {
-		if (scsi_bufflen(srb) < 56) {
+		if (scsi_bufflen(srb) < 56)
 			sendbytes = (unsigned char)(scsi_bufflen(srb));
-		} else {
+		else
 			sendbytes = 56;
-		}
+
 	} else {
-		if (scsi_bufflen(srb) < 36) {
+		if (scsi_bufflen(srb) < 36)
 			sendbytes = (unsigned char)(scsi_bufflen(srb));
-		} else {
+		else
 			sendbytes = 36;
-		}
 	}
 
 	if (sendbytes > 8) {
@@ -371,9 +368,8 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	if (pro_formatter_flag) {
-		if (sendbytes > 36) {
+		if (sendbytes > 36)
 			memcpy(buf + 36, formatter_inquiry_str, sendbytes - 36);
-		}
 	}
 
 	scsi_set_resid(srb, 0);
@@ -467,9 +463,8 @@ static int request_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = vmalloc(scsi_bufflen(srb));
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	tmp = (unsigned char *)sense;
 	memcpy(buf, tmp, scsi_bufflen(srb));
@@ -494,15 +489,15 @@ static void ms_mode_sense(struct rtsx_chip *chip, u8 cmd,
 
 	if (cmd == MODE_SENSE) {
 		sys_info_offset = 8;
-		if (data_size > 0x68) {
+		if (data_size > 0x68)
 			data_size = 0x68;
-		}
+
 		buf[i++] = 0x67;  /* Mode Data Length */
 	} else {
 		sys_info_offset = 12;
-		if (data_size > 0x6C) {
+		if (data_size > 0x6C)
 			data_size = 0x6C;
-		}
+
 		buf[i++] = 0x00;  /* Mode Data Length (MSB) */
 		buf[i++] = 0x6A;  /* Mode Data Length (LSB) */
 	}
@@ -520,11 +515,11 @@ static void ms_mode_sense(struct rtsx_chip *chip, u8 cmd,
 		}
 
 		/* WP */
-		if (check_card_wp(chip, lun)) {
+		if (check_card_wp(chip, lun))
 			buf[i++] = 0x80;
-		} else {
+		else
 			buf[i++] = 0x00;
-		}
+
 	} else {
 		buf[i++] = 0x00;	/* MediaType */
 		buf[i++] = 0x00;	/* WP */
@@ -545,11 +540,10 @@ static void ms_mode_sense(struct rtsx_chip *chip, u8 cmd,
 		if (data_size >= 11)
 			buf[i++] = 0x00;		/* No Access Control */
 		if (data_size >= 12) {
-			if (support_format) {
+			if (support_format)
 				buf[i++] = 0xC0;	/* SF, SGM */
-			} else {
+			else
 				buf[i++] = 0x00;
-			}
 		}
 	} else {
 		/* The Following Data is the content of "Page 0x20" */
@@ -560,11 +554,10 @@ static void ms_mode_sense(struct rtsx_chip *chip, u8 cmd,
 		if (data_size >= 7)
 			buf[i++] = 0x00;		/* No Access Control */
 		if (data_size >= 8) {
-			if (support_format) {
+			if (support_format)
 				buf[i++] = 0xC0;	/* SF, SGM */
-			} else {
+			else
 				buf[i++] = 0x00;
-			}
 		}
 	}
 
@@ -600,9 +593,8 @@ static int mode_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if ((chip->lun2card[lun] & MS_CARD)) {
 		if (!card || (card == MS_CARD)) {
 			dataSize = 108;
-			if (chip->mspro_formatter_enable) {
+			if (chip->mspro_formatter_enable)
 				pro_formatter_flag = 1;
-			}
 		}
 	}
 #else
@@ -615,9 +607,8 @@ static int mode_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 #endif
 
 	buf = kmalloc(dataSize, GFP_KERNEL);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	pageCode = srb->cmnd[2] & 0x3f;
 
@@ -632,11 +623,11 @@ static int mode_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				dataSize = 4;
 				buf[0] = 0x03;
 				buf[1] = 0x00;
-				if (check_card_wp(chip, lun)) {
+				if (check_card_wp(chip, lun))
 					buf[2] = 0x80;
-				} else {
+				else
 					buf[2] = 0x00;
-				}
+
 				buf[3] = 0x00;
 			}
 		} else {
@@ -648,11 +639,10 @@ static int mode_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				buf[0] = 0x00;
 				buf[1] = 0x06;
 				buf[2] = 0x00;
-				if (check_card_wp(chip, lun)) {
+				if (check_card_wp(chip, lun))
 					buf[3] = 0x80;
-				} else {
+				else
 					buf[3] = 0x00;
-				}
 				buf[4] = 0x00;
 				buf[5] = 0x00;
 				buf[6] = 0x00;
@@ -759,11 +749,11 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (chip->rw_fail_cnt[lun] == 3) {
 		RTSX_DEBUGP("read/write fail three times in succession\n");
-		if (srb->sc_data_direction == DMA_FROM_DEVICE) {
+		if (srb->sc_data_direction == DMA_FROM_DEVICE)
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		} else {
+		else
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
-		}
+
 		TRACE_RET(chip, TRANSPORT_FAILED);
 	}
 
@@ -776,9 +766,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (CHECK_PID(chip, 0x5209) && chip->max_payload) {
 			u8 val = 0x10 | (chip->max_payload << 5);
 			retval = rtsx_write_cfg_dw(chip, 0, 0x78, 0xFF, val);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_ERROR);
-			}
 		}
 	}
 
@@ -789,11 +778,10 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 		} else {
 			chip->rw_fail_cnt[lun]++;
-			if (srb->sc_data_direction == DMA_FROM_DEVICE) {
+			if (srb->sc_data_direction == DMA_FROM_DEVICE)
 				set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			} else {
+			else
 				set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
-			}
 		}
 		retval = TRANSPORT_FAILED;
 		TRACE_GOTO(chip, Exit);
@@ -808,9 +796,8 @@ Exit:
 	if (srb->sc_data_direction == DMA_TO_DEVICE) {
 		if (CHECK_PID(chip, 0x5209) && chip->max_payload) {
 			retval = rtsx_write_cfg_dw(chip, 0, 0x78, 0xFF, 0x10);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_ERROR);
-			}
 		}
 	}
 
@@ -837,9 +824,8 @@ static int read_format_capacity(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	buf_len = (scsi_bufflen(srb) > 12) ? 0x14 : 12;
 
 	buf = kmalloc(buf_len, GFP_KERNEL);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	buf[i++] = 0;
 	buf[i++] = 0;
@@ -864,22 +850,20 @@ static int read_format_capacity(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			buf[i++] = (unsigned char)(card_size >> 8);
 			buf[i++] = (unsigned char)card_size;
 
-			if (desc_cnt == 2) {
+			if (desc_cnt == 2)
 				buf[i++] = 2;
-			} else {
+			else
 				buf[i++] = 0;
-			}
 		} else {
 			buf[i++] = 0xFF;
 			buf[i++] = 0xFF;
 			buf[i++] = 0xFF;
 			buf[i++] = 0xFF;
 
-			if (desc_cnt == 2) {
+			if (desc_cnt == 2)
 				buf[i++] = 3;
-			} else {
+			else
 				buf[i++] = 0;
-			}
 		}
 
 		buf[i++] = 0x00;
@@ -916,9 +900,8 @@ static int read_capacity(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = kmalloc(8, GFP_KERNEL);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	card_size = get_card_size(chip, lun);
 	buf[0] = (unsigned char)((card_size - 1) >> 24);
@@ -956,9 +939,8 @@ static int read_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = ((u16)srb->cmnd[4] << 8) | srb->cmnd[5];
 
 	buf = (u8 *)vmalloc(len);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
@@ -1016,9 +998,8 @@ static int write_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	} else {
 		len = (unsigned short)min(scsi_bufflen(srb), (unsigned int)len);
 		buf = (u8 *)vmalloc(len);
-		if (buf == NULL) {
+		if (buf == NULL)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		rtsx_stor_get_xfer_buf(buf, len, srb);
 		scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1061,9 +1042,8 @@ static int read_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = (u8 *)vmalloc(len);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
@@ -1114,9 +1094,8 @@ static int write_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	len = (unsigned short)min(scsi_bufflen(srb), (unsigned int)len);
 	buf = (u8 *)vmalloc(len);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1200,16 +1179,15 @@ static int trace_msg_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	clear = srb->cmnd[2];
 
 	buf = (unsigned char *)vmalloc(scsi_bufflen(srb));
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 	ptr = buf;
 
-	if (chip->trace_msg[chip->msg_idx].valid) {
+	if (chip->trace_msg[chip->msg_idx].valid)
 		msg_cnt = TRACE_ITEM_CNT;
-	} else {
+	else
 		msg_cnt = chip->msg_idx;
-	}
+
 	*(ptr++) = (u8)(msg_cnt >> 24);
 	*(ptr++) = (u8)(msg_cnt >> 16);
 	*(ptr++) = (u8)(msg_cnt >> 8);
@@ -1225,15 +1203,14 @@ static int trace_msg_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 		*(ptr++) = (u8)(chip->trace_msg[idx].line >> 8);
 		*(ptr++) = (u8)(chip->trace_msg[idx].line);
-		for (j = 0; j < MSG_FUNC_LEN; j++) {
+		for (j = 0; j < MSG_FUNC_LEN; j++)
 			*(ptr++) = chip->trace_msg[idx].func[j];
-		}
-		for (j = 0; j < MSG_FILE_LEN; j++) {
+
+		for (j = 0; j < MSG_FILE_LEN; j++)
 			*(ptr++) = chip->trace_msg[idx].file[j];
-		}
-		for (j = 0; j < TIME_VAL_LEN; j++) {
+
+		for (j = 0; j < TIME_VAL_LEN; j++)
 			*(ptr++) = chip->trace_msg[idx].timeval_buf[j];
-		}
 	}
 
 	rtsx_stor_set_xfer_buf(buf, scsi_bufflen(srb), srb);
@@ -1424,20 +1401,19 @@ static int dma_access_ring_buffer(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = ((u16)(srb->cmnd[4]) << 8) | srb->cmnd[5];
 	len = min(len, (u16)scsi_bufflen(srb));
 
-	if (srb->sc_data_direction == DMA_FROM_DEVICE) {
+	if (srb->sc_data_direction == DMA_FROM_DEVICE)
 		RTSX_DEBUGP("Read from device\n");
-	} else {
+	else
 		RTSX_DEBUGP("Write to device\n");
-	}
 
 	retval = rtsx_transfer_data(chip, 0, scsi_sglist(srb), len,
 			scsi_sg_count(srb), srb->sc_data_direction, 1000);
 	if (retval < 0) {
-		if (srb->sc_data_direction == DMA_FROM_DEVICE) {
+		if (srb->sc_data_direction == DMA_FROM_DEVICE)
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		} else {
+		else
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
-		}
+
 		TRACE_RET(chip, TRANSPORT_FAILED);
 	}
 	scsi_set_resid(srb, 0);
@@ -1462,22 +1438,20 @@ static int get_dev_status(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	status[0] = (u8)(chip->product_id);
 	status[1] = chip->ic_version;
 
-	if (chip->auto_delink_en) {
+	if (chip->auto_delink_en)
 		status[2] = 0x10;
-	} else {
+	else
 		status[2] = 0x00;
-	}
 
 	status[3] = 20;
 	status[4] = 10;
 	status[5] = 05;
 	status[6] = 21;
 
-	if (chip->card_wp) {
+	if (chip->card_wp)
 		status[7] = 0x20;
-	} else {
+	else
 		status[7] = 0x00;
-	}
 
 #ifdef SUPPORT_OCP
 	status[8] = 0;
@@ -1489,67 +1463,60 @@ static int get_dev_status(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		oc_ever_mask = SD_OC_EVER;
 	}
 
-	if (chip->ocp_stat & oc_now_mask) {
+	if (chip->ocp_stat & oc_now_mask)
 		status[8] |= 0x02;
-	}
-	if (chip->ocp_stat & oc_ever_mask) {
+
+	if (chip->ocp_stat & oc_ever_mask)
 		status[8] |= 0x01;
-	}
 #endif
 
 	if (card == SD_CARD) {
 		if (CHK_SD(sd_card)) {
 			if (CHK_SD_HCXC(sd_card)) {
-				if (sd_card->capacity > 0x4000000) {
+				if (sd_card->capacity > 0x4000000)
 					status[0x0E] = 0x02;
-				} else {
+				else
 					status[0x0E] = 0x01;
-				}
 			} else {
 				status[0x0E] = 0x00;
 			}
 
-			if (CHK_SD_SDR104(sd_card)) {
+			if (CHK_SD_SDR104(sd_card))
 				status[0x0F] = 0x03;
-			} else if (CHK_SD_DDR50(sd_card)) {
+			else if (CHK_SD_DDR50(sd_card))
 				status[0x0F] = 0x04;
-			} else if (CHK_SD_SDR50(sd_card)) {
+			else if (CHK_SD_SDR50(sd_card))
 				status[0x0F] = 0x02;
-			} else if (CHK_SD_HS(sd_card)) {
+			else if (CHK_SD_HS(sd_card))
 				status[0x0F] = 0x01;
-			} else {
+			else
 				status[0x0F] = 0x00;
-			}
 		} else {
-			if (CHK_MMC_SECTOR_MODE(sd_card)) {
+			if (CHK_MMC_SECTOR_MODE(sd_card))
 				status[0x0E] = 0x01;
-			} else {
+			else
 				status[0x0E] = 0x00;
-			}
 
-			if (CHK_MMC_DDR52(sd_card)) {
+			if (CHK_MMC_DDR52(sd_card))
 				status[0x0F] = 0x03;
-			} else if (CHK_MMC_52M(sd_card)) {
+			else if (CHK_MMC_52M(sd_card))
 				status[0x0F] = 0x02;
-			} else if (CHK_MMC_26M(sd_card)) {
+			else if (CHK_MMC_26M(sd_card))
 				status[0x0F] = 0x01;
-			} else {
+			else
 				status[0x0F] = 0x00;
-			}
 		}
 	} else if (card == MS_CARD) {
 		if (CHK_MSPRO(ms_card)) {
-			if (CHK_MSXC(ms_card)) {
+			if (CHK_MSXC(ms_card))
 				status[0x0E] = 0x01;
-			} else {
+			else
 				status[0x0E] = 0x00;
-			}
 
-			if (CHK_HG8BIT(ms_card)) {
+			if (CHK_HG8BIT(ms_card))
 				status[0x0F] = 0x01;
-			} else {
+			else
 				status[0x0F] = 0x00;
-			}
 		}
 	}
 
@@ -1600,37 +1567,35 @@ static int set_chip_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (phy_debug_mode) {
 		chip->phy_debug_mode = 1;
 		retval = rtsx_write_register(chip, CDRESUMECTL, 0x77, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_FAILED);
-		}
+
 		rtsx_disable_bus_int(chip);
 
 		retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_FAILED);
-		}
+
 		reg |= 0x0001;
 		retval = rtsx_write_phy_register(chip, 0x1C, reg);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_FAILED);
-		}
 	} else {
 		chip->phy_debug_mode = 0;
 		retval = rtsx_write_register(chip, CDRESUMECTL, 0x77, 0x77);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_FAILED);
-		}
+
 		rtsx_enable_bus_int(chip);
 
 		retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_FAILED);
-		}
+
 		reg &= 0xFFFE;
 		retval = rtsx_write_phy_register(chip, 0x1C, reg);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_FAILED);
-		}
 	}
 
 	return TRANSPORT_GOOD;
@@ -1737,9 +1702,8 @@ static int read_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (len) {
 		buf = (u8 *)vmalloc(len);
-		if (!buf) {
+		if (!buf)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		retval = rtsx_force_power_on(chip, SSC_PDCTL);
 		if (retval != STATUS_SUCCESS) {
@@ -1795,9 +1759,8 @@ static int write_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		len = (unsigned short)min(scsi_bufflen(srb), (unsigned int)len);
 
 		buf = (u8 *)vmalloc(len);
-		if (buf == NULL) {
+		if (buf == NULL)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		rtsx_stor_get_xfer_buf(buf, len, srb);
 		scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1886,9 +1849,8 @@ static int read_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = ((u16)srb->cmnd[6] << 8) | srb->cmnd[7];
 
 	buf = (u8 *)vmalloc(len);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
@@ -1934,9 +1896,8 @@ static int write_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	len = (unsigned short)min(scsi_bufflen(srb), (unsigned int)len);
 	buf = (u8 *)vmalloc(len);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1980,9 +1941,8 @@ static int read_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = srb->cmnd[5];
 
 	buf = (u8 *)vmalloc(len);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
@@ -2029,9 +1989,8 @@ static int write_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	len = (u8)min(scsi_bufflen(srb), (unsigned int)len);
 	buf = (u8 *)vmalloc(len);
-	if (buf == NULL) {
+	if (buf == NULL)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -2093,27 +2052,23 @@ Exit:
 	vfree(buf);
 
 	retval = card_power_off(chip, SPI_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	if (chip->asic_code) {
 		retval = rtsx_write_register(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_OFF);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		wait_timeout(600);
 
 		retval = rtsx_write_phy_register(chip, 0x08, val);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		retval = rtsx_write_register(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_ON);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 	}
 
 	return result;
@@ -2140,11 +2095,10 @@ static int read_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	RTSX_DEBUGP("%s: func = %d, addr = 0x%x, len = %d\n", __func__, func, addr, len);
 
-	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
+	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip))
 		func_max = 1;
-	} else {
+	else
 		func_max = 0;
-	}
 
 	if (func > func_max) {
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
@@ -2152,9 +2106,8 @@ static int read_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = (u8 *)vmalloc(len);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	retval = rtsx_read_cfg_seq(chip, func, addr, buf, len);
 	if (retval != STATUS_SUCCESS) {
@@ -2193,11 +2146,10 @@ static int write_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	RTSX_DEBUGP("%s: func = %d, addr = 0x%x\n", __func__, func, addr);
 
-	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
+	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip))
 		func_max = 1;
-	} else {
+	else
 		func_max = 0;
-	}
 
 	if (func > func_max) {
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
@@ -2206,9 +2158,8 @@ static int write_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	len = (unsigned short)min(scsi_bufflen(srb), (unsigned int)len);
 	buf = (u8 *)vmalloc(len);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -2328,63 +2279,56 @@ static int read_status(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	rtsx_status[4] = (u8)lun;
 
 	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
-		if (chip->lun2card[lun] == SD_CARD) {
+		if (chip->lun2card[lun] == SD_CARD)
 			rtsx_status[5] = 2;
-		} else {
+		else
 			rtsx_status[5] = 3;
-		}
 	} else {
 		if (chip->card_exist) {
-			if (chip->card_exist & XD_CARD) {
+			if (chip->card_exist & XD_CARD)
 				rtsx_status[5] = 4;
-			} else if (chip->card_exist & SD_CARD) {
+			else if (chip->card_exist & SD_CARD)
 				rtsx_status[5] = 2;
-			} else if (chip->card_exist & MS_CARD) {
+			else if (chip->card_exist & MS_CARD)
 				rtsx_status[5] = 3;
-			} else {
+			else
 				rtsx_status[5] = 7;
-			}
 		} else {
 			rtsx_status[5] = 7;
 		}
 	}
 
-	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+	if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 		rtsx_status[6] = 2;
-	} else {
+	else
 		rtsx_status[6] = 1;
-	}
 
 	rtsx_status[7] = (u8)(chip->product_id);
 	rtsx_status[8] = chip->ic_version;
 
-	if (check_card_exist(chip, lun)) {
+	if (check_card_exist(chip, lun))
 		rtsx_status[9] = 1;
-	} else {
+	else
 		rtsx_status[9] = 0;
-	}
 
-	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+	if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
 		rtsx_status[10] = 0;
-	} else {
+	else
 		rtsx_status[10] = 1;
-	}
 
 	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
-		if (chip->lun2card[lun] == SD_CARD) {
+		if (chip->lun2card[lun] == SD_CARD)
 			rtsx_status[11] = SD_CARD;
-		} else {
+		else
 			rtsx_status[11] = MS_CARD;
-		}
 	} else {
 		rtsx_status[11] = XD_CARD | SD_CARD | MS_CARD;
 	}
 
-	if (check_card_ready(chip, lun)) {
+	if (check_card_ready(chip, lun))
 		rtsx_status[12] = 1;
-	} else {
+	else
 		rtsx_status[12] = 0;
-	}
 
 	if (get_lun_card(chip, lun) == XD_CARD) {
 		rtsx_status[13] = 0x40;
@@ -2421,29 +2365,26 @@ static int read_status(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	} else {
 		if (CHECK_LUN_MODE(chip, DEFAULT_SINGLE)) {
 #ifdef SUPPORT_SDIO
-			if (chip->sd_io && chip->sd_int) {
+			if (chip->sd_io && chip->sd_int)
 				rtsx_status[13] = 0x60;
-			} else {
+			else
 				rtsx_status[13] = 0x70;
-			}
 #else
 			rtsx_status[13] = 0x70;
 #endif
 		} else {
-			if (chip->lun2card[lun] == SD_CARD) {
+			if (chip->lun2card[lun] == SD_CARD)
 				rtsx_status[13] = 0x20;
-			} else {
+			else
 				rtsx_status[13] = 0x30;
-			}
 		}
 	}
 
 	rtsx_status[14] = 0x78;
-	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
+	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip))
 		rtsx_status[15] = 0x83;
-	} else {
+	else
 		rtsx_status[15] = 0x82;
-	}
 
 	buf_len = min(scsi_bufflen(srb), (unsigned int)sizeof(rtsx_status));
 	rtsx_stor_set_xfer_buf(rtsx_status, buf_len, srb);
@@ -2482,7 +2423,7 @@ static int spi_vendor_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	unsigned int lun = SCSI_LUN(srb);
 	u8 gpio_dir;
 
-	if (CHECK_PID(chip, 0x5208) && CHECK_PID(chip, 0x5288)) {
+	if (CHECK_PID(chip, 0x5208) || CHECK_PID(chip, 0x5288)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 		TRACE_RET(chip, TRANSPORT_FAILED);
 	}
@@ -2538,9 +2479,8 @@ static int spi_vendor_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	rtsx_write_register(chip, CARD_GPIO_DIR, 0x07, gpio_dir);
 
-	if (result != STATUS_SUCCESS) {
+	if (result != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 	return TRANSPORT_GOOD;
 }
@@ -2610,13 +2550,12 @@ void led_shine(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	unsigned int lun = SCSI_LUN(srb);
 	u16 sec_cnt;
 
-	if ((srb->cmnd[0] == READ_10) || (srb->cmnd[0] == WRITE_10)) {
+	if ((srb->cmnd[0] == READ_10) || (srb->cmnd[0] == WRITE_10))
 		sec_cnt = ((u16)(srb->cmnd[7]) << 8) | srb->cmnd[8];
-	} else if ((srb->cmnd[0] == READ_6) || (srb->cmnd[0] == WRITE_6)) {
+	else if ((srb->cmnd[0] == READ_6) || (srb->cmnd[0] == WRITE_6))
 		sec_cnt = srb->cmnd[4];
-	} else {
+	else
 		return;
-	}
 
 	if (chip->rw_cap[lun] >= GPIO_TOGGLE_THRESHOLD) {
 		toggle_gpio(chip, LED_GPIO);
@@ -2659,11 +2598,10 @@ static int ms_format_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 	rtsx_set_stat(chip, RTSX_STAT_RUN);
 
-	if (srb->cmnd[8] & 0x01) {
+	if (srb->cmnd[8] & 0x01)
 		quick_format = 0;
-	} else {
+	else
 		quick_format = 1;
-	}
 
 	if (!(chip->card_ready & MS_CARD)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
@@ -2724,27 +2662,25 @@ static int get_ms_information(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		TRACE_RET(chip, TRANSPORT_FAILED);
 	}
 
-	if (dev_info_id == 0x15) {
+	if (dev_info_id == 0x15)
 		buf_len = data_len = 0x3A;
-	} else {
+	else
 		buf_len = data_len = 0x6A;
-	}
 
 	buf = kmalloc(buf_len, GFP_KERNEL);
-	if (!buf) {
+	if (!buf)
 		TRACE_RET(chip, TRANSPORT_ERROR);
-	}
 
 	i = 0;
 	/*  GET Memory Stick Media Information Response Header */
 	buf[i++] = 0x00;		/* Data length MSB */
 	buf[i++] = data_len; 		/* Data length LSB */
 	/* Device Information Type Code */
-	if (CHK_MSXC(ms_card)) {
+	if (CHK_MSXC(ms_card))
 		buf[i++] = 0x03;
-	} else {
+	else
 		buf[i++] = 0x02;
-	}
+
 	/* SGM bit */
 	buf[i++] = 0x01;
 	/* Reserved */
@@ -2759,11 +2695,11 @@ static int get_ms_information(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	/* Device Information ID Number */
 	buf[i++] = dev_info_id;
 	/* Device Information Length */
-	if (dev_info_id == 0x15) {
+	if (dev_info_id == 0x15)
 		data_len = 0x31;
-	} else {
+	else
 		data_len = 0x61;
-	}
+
 	buf[i++] = 0x00;		/* Data length MSB */
 	buf[i++] = data_len; 		/* Data length LSB */
 	/* Valid Bit */
@@ -2778,11 +2714,10 @@ static int get_ms_information(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	rtsx_stor_set_xfer_buf(buf, buf_len, srb);
 
-	if (dev_info_id == 0x15) {
+	if (dev_info_id == 0x15)
 		scsi_set_resid(srb, scsi_bufflen(srb)-0x3C);
-	} else {
+	else
 		scsi_set_resid(srb, scsi_bufflen(srb)-0x6C);
-	}
 
 	kfree(buf);
 	return STATUS_SUCCESS;
@@ -2793,13 +2728,11 @@ static int ms_sp_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 {
 	int retval = TRANSPORT_ERROR;
 
-	if (srb->cmnd[2] == MS_FORMAT) {
+	if (srb->cmnd[2] == MS_FORMAT)
 		retval = ms_format_cmnd(srb, chip);
-	}
 #ifdef SUPPORT_PCGL_1P18
-	else if (srb->cmnd[2] == GET_MS_INFORMATION) {
+	else if (srb->cmnd[2] == GET_MS_INFORMATION)
 		retval = get_ms_information(srb, chip);
-	}
 #endif
 
 	return retval;
@@ -2912,9 +2845,9 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x04) &&
 			(srb->cmnd[9] == 0x1C)) {
 			retval = mg_get_local_EKB(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
@@ -2926,9 +2859,9 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x24)) {
 			retval = mg_get_rsp_chg(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
@@ -2945,9 +2878,9 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[4] == 0x00) &&
 			(srb->cmnd[5] < 32)) {
 			retval = mg_get_ICV(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
@@ -3014,9 +2947,9 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x0C)) {
 			retval = mg_set_leaf_id(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
@@ -3028,9 +2961,9 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x0C)) {
 			retval = mg_chg(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
@@ -3042,9 +2975,9 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x0C)) {
 			retval = mg_rsp(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
@@ -3061,9 +2994,9 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[4] == 0x00) &&
 			(srb->cmnd[5] < 32)) {
 			retval = mg_set_ICV(srb, chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
 			TRACE_RET(chip, TRANSPORT_FAILED);
diff --git a/drivers/staging/rts_pstor/rtsx_transport.c b/drivers/staging/rts_pstor/rtsx_transport.c
index 54a474235f2..1f9a4248044 100644
--- a/drivers/staging/rts_pstor/rtsx_transport.c
+++ b/drivers/staging/rts_pstor/rtsx_transport.c
@@ -218,9 +218,9 @@ void rtsx_add_cmd(struct rtsx_chip *chip,
 	val |= (u32)data;
 
 	spin_lock_irq(&chip->rtsx->reg_lock);
-	if (chip->ci < (HOST_CMDS_BUF_LEN / 4)) {
+	if (chip->ci < (HOST_CMDS_BUF_LEN / 4))
 		cb[(chip->ci)++] = cpu_to_le32(val);
-	}
+
 	spin_unlock_irq(&chip->rtsx->reg_lock);
 }
 
@@ -244,15 +244,14 @@ int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout)
 	long timeleft;
 	int err = 0;
 
-	if (card == SD_CARD) {
+	if (card == SD_CARD)
 		rtsx->check_card_cd = SD_EXIST;
-	} else if (card == MS_CARD) {
+	else if (card == MS_CARD)
 		rtsx->check_card_cd = MS_EXIST;
-	} else if (card == XD_CARD) {
+	else if (card == XD_CARD)
 		rtsx->check_card_cd = XD_EXIST;
-	} else {
+	else
 		rtsx->check_card_cd = 0;
-	}
 
 	spin_lock_irq(&rtsx->reg_lock);
 
@@ -281,11 +280,11 @@ int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout)
 	}
 
 	spin_lock_irq(&rtsx->reg_lock);
-	if (rtsx->trans_result == TRANS_RESULT_FAIL) {
+	if (rtsx->trans_result == TRANS_RESULT_FAIL)
 		err = -EIO;
-	} else if (rtsx->trans_result == TRANS_RESULT_OK) {
+	else if (rtsx->trans_result == TRANS_RESULT_OK)
 		err = 0;
-	}
+
 	spin_unlock_irq(&rtsx->reg_lock);
 
 finish_send_cmd:
@@ -341,23 +340,21 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 	if ((sg == NULL) || (num_sg <= 0) || !offset || !index)
 		return -EIO;
 
-	if (dma_dir == DMA_TO_DEVICE) {
+	if (dma_dir == DMA_TO_DEVICE)
 		dir = HOST_TO_DEVICE;
-	} else if (dma_dir == DMA_FROM_DEVICE) {
+	else if (dma_dir == DMA_FROM_DEVICE)
 		dir = DEVICE_TO_HOST;
-	} else {
+	else
 		return -ENXIO;
-	}
 
-	if (card == SD_CARD) {
+	if (card == SD_CARD)
 		rtsx->check_card_cd = SD_EXIST;
-	} else if (card == MS_CARD) {
+	else if (card == MS_CARD)
 		rtsx->check_card_cd = MS_EXIST;
-	} else if (card == XD_CARD) {
+	else if (card == XD_CARD)
 		rtsx->check_card_cd = XD_EXIST;
-	} else {
+	else
 		rtsx->check_card_cd = 0;
-	}
 
 	spin_lock_irq(&rtsx->reg_lock);
 
@@ -405,11 +402,10 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 			*offset = 0;
 			*index = *index + 1;
 		}
-		if ((i == (sg_cnt - 1)) || !resid) {
+		if ((i == (sg_cnt - 1)) || !resid)
 			option = SG_VALID | SG_END | SG_TRANS_DATA;
-		} else {
+		else
 			option = SG_VALID | SG_TRANS_DATA;
-		}
 
 		rtsx_add_sg_tbl(chip, (u32)addr, (u32)len, option);
 
@@ -468,11 +464,11 @@ static int rtsx_transfer_sglist_adma_partial(struct rtsx_chip *chip, u8 card,
 	}
 
 	spin_lock_irq(&rtsx->reg_lock);
-	if (rtsx->trans_result == TRANS_RESULT_FAIL) {
+	if (rtsx->trans_result == TRANS_RESULT_FAIL)
 		err = -EIO;
-	} else if (rtsx->trans_result == TRANS_RESULT_OK) {
+	else if (rtsx->trans_result == TRANS_RESULT_OK)
 		err = 0;
-	}
+
 	spin_unlock_irq(&rtsx->reg_lock);
 
 out:
@@ -501,23 +497,21 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 	if ((sg == NULL) || (num_sg <= 0))
 		return -EIO;
 
-	if (dma_dir == DMA_TO_DEVICE) {
+	if (dma_dir == DMA_TO_DEVICE)
 		dir = HOST_TO_DEVICE;
-	} else if (dma_dir == DMA_FROM_DEVICE) {
+	else if (dma_dir == DMA_FROM_DEVICE)
 		dir = DEVICE_TO_HOST;
-	} else {
+	else
 		return -ENXIO;
-	}
 
-	if (card == SD_CARD) {
+	if (card == SD_CARD)
 		rtsx->check_card_cd = SD_EXIST;
-	} else if (card == MS_CARD) {
+	else if (card == MS_CARD)
 		rtsx->check_card_cd = MS_EXIST;
-	} else if (card == XD_CARD) {
+	else if (card == XD_CARD)
 		rtsx->check_card_cd = XD_EXIST;
-	} else {
+	else
 		rtsx->check_card_cd = 0;
-	}
 
 	spin_lock_irq(&rtsx->reg_lock);
 
@@ -537,11 +531,10 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 		u32 val = TRIG_DMA;
 		int sg_cnt, j;
 
-		if (i == buf_cnt / (HOST_SG_TBL_BUF_LEN / 8)) {
+		if (i == buf_cnt / (HOST_SG_TBL_BUF_LEN / 8))
 			sg_cnt = buf_cnt % (HOST_SG_TBL_BUF_LEN / 8);
-		} else {
+		else
 			sg_cnt = (HOST_SG_TBL_BUF_LEN / 8);
-		}
 
 		chip->sgi = 0;
 		for (j = 0; j < sg_cnt; j++) {
@@ -552,11 +545,10 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 			RTSX_DEBUGP("DMA addr: 0x%x, Len: 0x%x\n",
 				     (unsigned int)addr, len);
 
-			if (j == (sg_cnt - 1)) {
+			if (j == (sg_cnt - 1))
 				option = SG_VALID | SG_END | SG_TRANS_DATA;
-			} else {
+			else
 				option = SG_VALID | SG_TRANS_DATA;
-			}
 
 			rtsx_add_sg_tbl(chip, (u32)addr, (u32)len, option);
 
@@ -615,11 +607,11 @@ static int rtsx_transfer_sglist_adma(struct rtsx_chip *chip, u8 card,
 	}
 
 	spin_lock_irq(&rtsx->reg_lock);
-	if (rtsx->trans_result == TRANS_RESULT_FAIL) {
+	if (rtsx->trans_result == TRANS_RESULT_FAIL)
 		err = -EIO;
-	} else if (rtsx->trans_result == TRANS_RESULT_OK) {
+	else if (rtsx->trans_result == TRANS_RESULT_OK)
 		err = 0;
-	}
+
 	spin_unlock_irq(&rtsx->reg_lock);
 
 out:
@@ -647,27 +639,25 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf, size_t
 	if ((buf == NULL) || (len <= 0))
 		return -EIO;
 
-	if (dma_dir == DMA_TO_DEVICE) {
+	if (dma_dir == DMA_TO_DEVICE)
 		dir = HOST_TO_DEVICE;
-	} else if (dma_dir == DMA_FROM_DEVICE) {
+	else if (dma_dir == DMA_FROM_DEVICE)
 		dir = DEVICE_TO_HOST;
-	} else {
+	else
 		return -ENXIO;
-	}
 
 	addr = dma_map_single(&(rtsx->pci->dev), buf, len, dma_dir);
 	if (!addr)
 		return -ENOMEM;
 
-	if (card == SD_CARD) {
+	if (card == SD_CARD)
 		rtsx->check_card_cd = SD_EXIST;
-	} else if (card == MS_CARD) {
+	else if (card == MS_CARD)
 		rtsx->check_card_cd = MS_EXIST;
-	} else if (card == XD_CARD) {
+	else if (card == XD_CARD)
 		rtsx->check_card_cd = XD_EXIST;
-	} else {
+	else
 		rtsx->check_card_cd = 0;
-	}
 
 	val |= (u32)(dir & 0x01) << 29;
 	val |= (u32)(len & 0x00FFFFFF);
@@ -698,11 +688,11 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf, size_t
 	}
 
 	spin_lock_irq(&rtsx->reg_lock);
-	if (rtsx->trans_result == TRANS_RESULT_FAIL) {
+	if (rtsx->trans_result == TRANS_RESULT_FAIL)
 		err = -EIO;
-	} else if (rtsx->trans_result == TRANS_RESULT_OK) {
+	else if (rtsx->trans_result == TRANS_RESULT_OK)
 		err = 0;
-	}
+
 	spin_unlock_irq(&rtsx->reg_lock);
 
 out:
diff --git a/drivers/staging/rts_pstor/sd.c b/drivers/staging/rts_pstor/sd.c
index 3cc9a489e4e..c6a581c47cb 100644
--- a/drivers/staging/rts_pstor/sd.c
+++ b/drivers/staging/rts_pstor/sd.c
@@ -192,9 +192,9 @@ RTY_SEND_CMD:
 
 		stat_idx = 16;
 	} else if (rsp_type != SD_RSP_TYPE_R0) {
-		for (reg_addr = REG_SD_CMD0; reg_addr <= REG_SD_CMD4; reg_addr++) {
+		for (reg_addr = REG_SD_CMD0; reg_addr <= REG_SD_CMD4; reg_addr++)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0, 0);
-		}
+
 		stat_idx = 5;
 	}
 
@@ -273,9 +273,8 @@ RTY_SEND_CMD:
 	if ((rsp_type == SD_RSP_TYPE_R1) || (rsp_type == SD_RSP_TYPE_R1b)) {
 		if ((cmd_idx != SEND_RELATIVE_ADDR) && (cmd_idx != SEND_IF_COND)) {
 			if (cmd_idx != STOP_TRANSMISSION) {
-				if (ptr[1] & 0x80) {
+				if (ptr[1] & 0x80)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			}
 #ifdef SUPPORT_SD_LOCK
 			if (ptr[1] & 0x7D)
@@ -294,11 +293,10 @@ RTY_SEND_CMD:
 				RTSX_DEBUGP("ptr[3]: 0x%02x\n", ptr[3]);
 				TRACE_RET(chip, STATUS_FAIL);
 			}
-			if (ptr[3] & 0x01) {
+			if (ptr[3] & 0x01)
 				sd_card->sd_data_buf_ready = 1;
-			} else {
+			else
 				sd_card->sd_data_buf_ready = 0;
-			}
 		}
 	}
 
@@ -322,17 +320,15 @@ static int sd_read_data(struct rtsx_chip *chip,
 	if (!buf)
 		buf_len = 0;
 
-	if (buf_len > 512) {
+	if (buf_len > 512)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	rtsx_init_cmd(chip);
 
 	if (cmd_len) {
 		RTSX_DEBUGP("SD/MMC CMD %d\n", cmd[0] - 0x40);
-		for (i = 0; i < (cmd_len < 6 ? cmd_len : 6); i++) {
+		for (i = 0; i < (cmd_len < 6 ? cmd_len : 6); i++)
 			rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CMD0 + i, 0xFF, cmd[i]);
-		}
 	}
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_BYTE_CNT_L, 0xFF, (u8)byte_cnt);
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_BYTE_CNT_H, 0xFF, (u8)(byte_cnt >> 8));
@@ -344,9 +340,9 @@ static int sd_read_data(struct rtsx_chip *chip,
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG2, 0xFF,
 			SD_CALCULATE_CRC7 | SD_CHECK_CRC16 | SD_NO_WAIT_BUSY_END |
 			SD_CHECK_CRC7 | SD_RSP_LEN_6);
-	if (trans_mode != SD_TM_AUTO_TUNING) {
+	if (trans_mode != SD_TM_AUTO_TUNING)
 		rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01, PINGPONG_BUFFER);
-	}
+
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_TRANSFER, 0xFF, trans_mode | SD_TRANSFER_START);
 	rtsx_add_cmd(chip, CHECK_REG_CMD, REG_SD_TRANSFER, SD_TRANSFER_END, SD_TRANSFER_END);
 
@@ -362,9 +358,8 @@ static int sd_read_data(struct rtsx_chip *chip,
 
 	if (buf && buf_len) {
 		retval = rtsx_read_ppbuf(chip, buf, buf_len);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -390,9 +385,8 @@ static int sd_write_data(struct rtsx_chip *chip, u8 trans_mode,
 
 	if (buf && buf_len) {
 		retval = rtsx_write_ppbuf(chip, buf, buf_len);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	rtsx_init_cmd(chip);
@@ -450,15 +444,13 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 			break;
 	}
 
-	if (i == 6) {
+	if (i == 6)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	memcpy(sd_card->raw_csd, rsp + 1, 15);
 
-	if (CHECK_PID(chip, 0x5209)) {
+	if (CHECK_PID(chip, 0x5209))
 		RTSX_READ_REG(chip, REG_SD_CMD5, sd_card->raw_csd + 15);
-	}
 
 	RTSX_DEBUGP("CSD Response:\n");
 	RTSX_DUMP(sd_card->raw_csd, 16);
@@ -469,35 +461,34 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 	trans_speed = rsp[4];
 	if ((trans_speed & 0x07) == 0x02) {
 		if ((trans_speed & 0xf8) >= 0x30) {
-			if (chip->asic_code) {
+			if (chip->asic_code)
 				sd_card->sd_clock = 47;
-			} else {
+			else
 				sd_card->sd_clock = CLK_50;
-			}
+
 		} else if ((trans_speed & 0xf8) == 0x28) {
-			if (chip->asic_code) {
+			if (chip->asic_code)
 				sd_card->sd_clock = 39;
-			} else {
+			else
 				sd_card->sd_clock = CLK_40;
-			}
+
 		} else if ((trans_speed & 0xf8) == 0x20) {
-			if (chip->asic_code) {
+			if (chip->asic_code)
 				sd_card->sd_clock = 29;
-			} else {
+			else
 				sd_card->sd_clock = CLK_30;
-			}
+
 		} else if ((trans_speed & 0xf8) >= 0x10) {
-			if (chip->asic_code) {
+			if (chip->asic_code)
 				sd_card->sd_clock = 23;
-			} else {
+			else
 				sd_card->sd_clock = CLK_20;
-			}
+
 		} else if ((trans_speed & 0x08) >= 0x08) {
-			if (chip->asic_code) {
+			if (chip->asic_code)
 				sd_card->sd_clock = 19;
-			} else {
+			else
 				sd_card->sd_clock = CLK_20;
-			}
 		} else {
 			TRACE_RET(chip, STATUS_FAIL);
 		}
@@ -527,9 +518,9 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 	}
 
 	if (check_wp) {
-		if (rsp[15] & 0x30) {
+		if (rsp[15] & 0x30)
 			chip->card_wp |= SD_CARD;
-		}
+
 		RTSX_DEBUGP("CSD WP Status: 0x%x\n", rsp[15]);
 	}
 
@@ -568,22 +559,21 @@ static int sd_set_sample_push_timing(struct rtsx_chip *chip)
 					CRC_FIX_CLK | SD30_VAR_CLK0 | SAMPLE_VAR_CLK1);
 			RTSX_WRITE_REG(chip, CLK_CTL, CLK_LOW_FREQ, 0);
 
-			if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_AUTO) {
+			if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_AUTO)
 				val = SD20_TX_NEG_EDGE;
-			} else if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_DELAY) {
+			else if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_DELAY)
 				val = SD20_TX_14_AHEAD;
-			} else {
+			else
 				val = SD20_TX_NEG_EDGE;
-			}
+
 			RTSX_WRITE_REG(chip, SD_PUSH_POINT_CTL, SD20_TX_SEL_MASK, val);
 
 			if ((chip->sd_ctl & SD_SAMPLE_POINT_CTL_MASK) == SD_SAMPLE_POINT_AUTO) {
 				if (chip->asic_code) {
-					if (CHK_SD_HS(sd_card) || CHK_MMC_52M(sd_card)) {
+					if (CHK_SD_HS(sd_card) || CHK_MMC_52M(sd_card))
 						val = SD20_RX_14_DELAY;
-					} else {
+					else
 						val = SD20_RX_POS_EDGE;
-					}
 				} else {
 					val = SD20_RX_14_DELAY;
 				}
@@ -597,32 +587,28 @@ static int sd_set_sample_push_timing(struct rtsx_chip *chip)
 	} else {
 		u8 val = 0;
 
-		if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_DELAY) {
+		if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_DELAY)
 			val |= 0x10;
-		}
 
 		if ((chip->sd_ctl & SD_SAMPLE_POINT_CTL_MASK) == SD_SAMPLE_POINT_AUTO) {
 			if (chip->asic_code) {
 				if (CHK_SD_HS(sd_card) || CHK_MMC_52M(sd_card)) {
-					if (val & 0x10) {
+					if (val & 0x10)
 						val |= 0x04;
-					} else {
+					else
 						val |= 0x08;
-					}
 				}
 			} else {
-				if (val & 0x10) {
+				if (val & 0x10)
 					val |= 0x04;
-				} else {
+				else
 					val |= 0x08;
-				}
 			}
 		} else if ((chip->sd_ctl & SD_SAMPLE_POINT_CTL_MASK) == SD_SAMPLE_POINT_DELAY) {
-			if (val & 0x10) {
+			if (val & 0x10)
 				val |= 0x04;
-			} else {
+			else
 				val |= 0x08;
-			}
 		}
 
 		RTSX_WRITE_REG(chip, REG_SD_CFG1, 0x1C, val);
@@ -636,41 +622,40 @@ static void sd_choose_proper_clock(struct rtsx_chip *chip)
 	struct sd_info *sd_card = &(chip->sd_card);
 
 	if (CHK_SD_SDR104(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_sdr104_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_sdr104_clk;
-		}
+
 	} else if (CHK_SD_DDR50(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_ddr50_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_ddr50_clk;
-		}
+
 	} else if (CHK_SD_SDR50(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_sdr50_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_sdr50_clk;
-		}
+
 	} else if (CHK_SD_HS(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_hs_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_hs_clk;
-		}
+
 	} else if (CHK_MMC_52M(sd_card) || CHK_MMC_DDR52(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_mmc_52m_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_mmc_52m_clk;
-		}
+
 	} else if (CHK_MMC_26M(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = 48;
-		} else {
+		else
 			sd_card->sd_clock = CLK_50;
-		}
 	}
 }
 
@@ -683,13 +668,12 @@ static int sd_set_clock_divider(struct rtsx_chip *chip, u8 clk_div)
 		val = clk_div;
 	} else {
 		mask = 0x60;
-		if (clk_div == SD_CLK_DIVIDE_0) {
+		if (clk_div == SD_CLK_DIVIDE_0)
 			val = 0x00;
-		} else if (clk_div == SD_CLK_DIVIDE_128) {
+		else if (clk_div == SD_CLK_DIVIDE_128)
 			val = 0x40;
-		} else if (clk_div == SD_CLK_DIVIDE_256) {
+		else if (clk_div == SD_CLK_DIVIDE_256)
 			val = 0x20;
-		}
 	}
 
 	RTSX_WRITE_REG(chip, REG_SD_CFG1, mask, val);
@@ -703,16 +687,14 @@ static int sd_set_init_para(struct rtsx_chip *chip)
 	int retval;
 
 	retval = sd_set_sample_push_timing(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	sd_choose_proper_clock(chip);
 
 	retval = switch_clock(chip, sd_card->sd_clock);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -735,9 +717,8 @@ int sd_select_card(struct rtsx_chip *chip, int select)
 	}
 
 	retval = sd_send_cmd_get_rsp(chip, cmd_idx, addr, cmd_type, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -750,21 +731,18 @@ static int sd_update_lock_status(struct rtsx_chip *chip)
 	u8 rsp[5];
 
 	retval = sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr, SD_RSP_TYPE_R1, rsp, 5);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (rsp[1] & 0x02) {
+	if (rsp[1] & 0x02)
 		sd_card->sd_lock_status |= SD_LOCKED;
-	} else {
+	else
 		sd_card->sd_lock_status &= ~SD_LOCKED;
-	}
 
 	RTSX_DEBUGP("sd_card->sd_lock_status = 0x%x\n", sd_card->sd_lock_status);
 
-	if (rsp[1] & 0x01) {
+	if (rsp[1] & 0x01)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -779,13 +757,11 @@ static int sd_wait_state_data_ready(struct rtsx_chip *chip, u8 state, u8 data_re
 	for (i = 0; i < polling_cnt; i++) {
 		retval = sd_send_cmd_get_rsp(chip, SEND_STATUS,
 					     sd_card->sd_addr, SD_RSP_TYPE_R1, rsp, 5);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
-		if (((rsp[3] & 0x1E) == state) && ((rsp[3] & 0x01) == data_ready)) {
+		if (((rsp[3] & 0x1E) == state) && ((rsp[3] & 0x01) == data_ready))
 			return STATUS_SUCCESS;
-		}
 	}
 
 	TRACE_RET(chip, STATUS_FAIL);
@@ -798,18 +774,16 @@ static int sd_change_bank_voltage(struct rtsx_chip *chip, u8 voltage)
 	if (voltage == SD_IO_3V3) {
 		if (chip->asic_code) {
 			retval = rtsx_write_phy_register(chip, 0x08, 0x4FC0 | chip->phy_voltage);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		} else {
 			RTSX_WRITE_REG(chip, SD_PAD_CTL, SD_IO_USING_1V8, 0);
 		}
 	} else if (voltage == SD_IO_1V8) {
 		if (chip->asic_code) {
 			retval = rtsx_write_phy_register(chip, 0x08, 0x4C40 | chip->phy_voltage);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		} else {
 			RTSX_WRITE_REG(chip, SD_PAD_CTL, SD_IO_USING_1V8, SD_IO_USING_1V8);
 		}
@@ -828,9 +802,8 @@ static int sd_voltage_switch(struct rtsx_chip *chip)
 	RTSX_WRITE_REG(chip, SD_BUS_STAT, SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP, SD_CLK_TOGGLE_EN);
 
 	retval = sd_send_cmd_get_rsp(chip, VOLTAGE_SWITCH, 0, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	udelay(chip->sd_voltage_switch_delay);
 
@@ -842,9 +815,9 @@ static int sd_voltage_switch(struct rtsx_chip *chip)
 
 	RTSX_WRITE_REG(chip, SD_BUS_STAT, 0xFF, SD_CLK_FORCE_STOP);
 	retval = sd_change_bank_voltage(chip, SD_IO_1V8);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	wait_timeout(50);
 
 	RTSX_WRITE_REG(chip, SD_BUS_STAT, 0xFF, SD_CLK_TOGGLE_EN);
@@ -893,9 +866,8 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
 	if (tune_dir == TUNE_RX) {
 		SD_VP_CTL = SD_VPRX_CTL;
 		SD_DCMPS_CTL = SD_DCMPS_RX_CTL;
-		if (CHK_SD_DDR50(sd_card)) {
+		if (CHK_SD_DDR50(sd_card))
 			ddr_rx = 1;
-		}
 	} else {
 		SD_VP_CTL = SD_VPTX_CTL;
 		SD_DCMPS_CTL = SD_DCMPS_TX_CTL;
@@ -932,23 +904,22 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
 		rtsx_add_cmd(chip, WRITE_REG_CMD, SD_DCMPS_CTL, DCMPS_CHANGE, DCMPS_CHANGE);
 		rtsx_add_cmd(chip, CHECK_REG_CMD, SD_DCMPS_CTL, DCMPS_CHANGE_DONE, DCMPS_CHANGE_DONE);
 		retval = rtsx_send_cmd(chip, SD_CARD, 100);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, Fail);
-		}
 
 		val = *rtsx_get_cmd_data(chip);
-		if (val & DCMPS_ERROR) {
+		if (val & DCMPS_ERROR)
 			TRACE_GOTO(chip, Fail);
-		}
-		if ((val & DCMPS_CURRENT_PHASE) != sample_point) {
+
+		if ((val & DCMPS_CURRENT_PHASE) != sample_point)
 			TRACE_GOTO(chip, Fail);
-		}
+
 		RTSX_WRITE_REG(chip, SD_DCMPS_CTL, DCMPS_CHANGE, 0);
-		if (ddr_rx) {
+		if (ddr_rx)
 			RTSX_WRITE_REG(chip, SD_VP_CTL, PHASE_CHANGE, 0);
-		} else {
+		else
 			RTSX_WRITE_REG(chip, CLK_CTL, CHANGE_CLK, 0);
-		}
+
 		udelay(50);
 	}
 
@@ -978,9 +949,8 @@ static int sd_check_spec(struct rtsx_chip *chip, u8 bus_width)
 	u8 cmd[5], buf[8];
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	cmd[0] = 0x40 | SEND_SCR;
 	cmd[1] = 0;
@@ -996,9 +966,8 @@ static int sd_check_spec(struct rtsx_chip *chip, u8 bus_width)
 
 	memcpy(sd_card->raw_scr, buf, 8);
 
-	if ((buf[0] & 0x0F) == 0) {
+	if ((buf[0] & 0x0F) == 0)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1172,13 +1141,12 @@ static int sd_check_switch_mode(struct rtsx_chip *chip, u8 mode,
 		 */
 		u16 cc = ((u16)buf[0] << 8) | buf[1];
 		RTSX_DEBUGP("Maximum current consumption: %dmA\n", cc);
-		if ((cc == 0) || (cc > 800)) {
+		if ((cc == 0) || (cc > 800))
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = sd_query_switch_result(chip, func_group, func_to_switch, buf, 64);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if ((cc > 400) || (func_to_switch > CURRENT_LIMIT_400)) {
 			RTSX_WRITE_REG(chip, OCPPARA2, SD_OCP_THD_MASK, chip->sd_800mA_ocp_thd);
@@ -1192,13 +1160,12 @@ static int sd_check_switch_mode(struct rtsx_chip *chip, u8 mode,
 static u8 downgrade_switch_mode(u8 func_group, u8 func_to_switch)
 {
 	if (func_group == SD_FUNC_GROUP_1) {
-		if (func_to_switch > HS_SUPPORT) {
+		if (func_to_switch > HS_SUPPORT)
 			func_to_switch--;
-		}
+
 	} else if (func_group == SD_FUNC_GROUP_4) {
-		if (func_to_switch > CURRENT_LIMIT_200) {
+		if (func_to_switch > CURRENT_LIMIT_200)
 			func_to_switch--;
-		}
 	}
 
 	return func_to_switch;
@@ -1241,9 +1208,8 @@ static int sd_check_switch(struct rtsx_chip *chip,
 		wait_timeout(20);
 	}
 
-	if (!switch_good) {
+	if (!switch_good)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1258,9 +1224,8 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 	/* Get supported functions */
 	retval = sd_check_switch_mode(chip, SD_CHECK_MODE,
 			NO_ARGUMENT, NO_ARGUMENT, bus_width);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	sd_card->func_group1_mask &= ~(sd_card->sd_switch_fail);
 
@@ -1289,9 +1254,9 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 			break;
 
 		case HS_SUPPORT:
-			if (sd_card->func_group1_mask & HS_SUPPORT_MASK) {
+			if (sd_card->func_group1_mask & HS_SUPPORT_MASK)
 				func_to_switch = HS_SUPPORT;
-			}
+
 			break;
 
 		default:
@@ -1299,9 +1264,9 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 		}
 
 
-		if (func_to_switch) {
+		if (func_to_switch)
 			break;
-		}
+
 	}
 	RTSX_DEBUGP("SD_FUNC_GROUP_1: func_to_switch = 0x%02x", func_to_switch);
 
@@ -1330,23 +1295,21 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 			TRACE_RET(chip, STATUS_FAIL);
 		}
 
-		if (func_to_switch == SDR104_SUPPORT) {
+		if (func_to_switch == SDR104_SUPPORT)
 			SET_SD_SDR104(sd_card);
-		} else if (func_to_switch == DDR50_SUPPORT) {
+		else if (func_to_switch == DDR50_SUPPORT)
 			SET_SD_DDR50(sd_card);
-		} else if (func_to_switch == SDR50_SUPPORT) {
+		else if (func_to_switch == SDR50_SUPPORT)
 			SET_SD_SDR50(sd_card);
-		} else {
+		else
 			SET_SD_HS(sd_card);
-		}
 	}
 
 	if (CHK_SD_DDR50(sd_card)) {
 		RTSX_WRITE_REG(chip, SD_PUSH_POINT_CTL, 0x06, 0x04);
 		retval = sd_set_sample_push_timing(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	if (!func_to_switch || (func_to_switch == HS_SUPPORT)) {
@@ -1362,36 +1325,35 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 	for (i = 0; i < 4; i++) {
 		switch ((u8)(chip->sd_current_prior >> (i*8))) {
 		case CURRENT_LIMIT_800:
-			if (sd_card->func_group4_mask & CURRENT_LIMIT_800_MASK) {
+			if (sd_card->func_group4_mask & CURRENT_LIMIT_800_MASK)
 				func_to_switch = CURRENT_LIMIT_800;
-			}
+
 			break;
 
 		case CURRENT_LIMIT_600:
-			if (sd_card->func_group4_mask & CURRENT_LIMIT_600_MASK) {
+			if (sd_card->func_group4_mask & CURRENT_LIMIT_600_MASK)
 				func_to_switch = CURRENT_LIMIT_600;
-			}
+
 			break;
 
 		case CURRENT_LIMIT_400:
-			if (sd_card->func_group4_mask & CURRENT_LIMIT_400_MASK) {
+			if (sd_card->func_group4_mask & CURRENT_LIMIT_400_MASK)
 				func_to_switch = CURRENT_LIMIT_400;
-			}
+
 			break;
 
 		case CURRENT_LIMIT_200:
-			if (sd_card->func_group4_mask & CURRENT_LIMIT_200_MASK) {
+			if (sd_card->func_group4_mask & CURRENT_LIMIT_200_MASK)
 				func_to_switch = CURRENT_LIMIT_200;
-			}
+
 			break;
 
 		default:
 			continue;
 		}
 
-		if (func_to_switch != 0xFF) {
+		if (func_to_switch != 0xFF)
 			break;
-		}
 	}
 
 	RTSX_DEBUGP("SD_FUNC_GROUP_4: func_to_switch = 0x%02x", func_to_switch);
@@ -1399,16 +1361,14 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 	if (func_to_switch <= CURRENT_LIMIT_800) {
 		retval = sd_check_switch(chip, SD_FUNC_GROUP_4, func_to_switch, bus_width);
 		if (retval != STATUS_SUCCESS) {
-			if (sd_check_err_code(chip, SD_NO_CARD)) {
+			if (sd_check_err_code(chip, SD_NO_CARD))
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 		RTSX_DEBUGP("Switch current limit finished! (%d)\n", retval);
 	}
 
-	if (CHK_SD_DDR50(sd_card)) {
+	if (CHK_SD_DDR50(sd_card))
 		RTSX_WRITE_REG(chip, SD_PUSH_POINT_CTL, 0x06, 0);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1438,9 +1398,8 @@ static int sd_sdr_tuning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	u8 cmd[5];
 
 	retval = sd_change_phase(chip, sample_point, TUNE_RX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	cmd[0] = 0x40 | SEND_TUNING_PATTERN;
 	cmd[1] = 0;
@@ -1467,16 +1426,14 @@ static int sd_ddr_tuning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	u8 cmd[5];
 
 	retval = sd_change_phase(chip, sample_point, TUNE_RX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_DEBUGP("sd ddr tuning rx\n");
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	cmd[0] = 0x40 | SD_STATUS;
 	cmd[1] = 0;
@@ -1502,18 +1459,16 @@ static int mmc_ddr_tunning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	int retval;
 	u8 cmd[5], bus_width;
 
-	if (CHK_MMC_8BIT(sd_card)) {
+	if (CHK_MMC_8BIT(sd_card))
 		bus_width = SD_BUS_WIDTH_8;
-	} else if (CHK_MMC_4BIT(sd_card)) {
+	else if (CHK_MMC_4BIT(sd_card))
 		bus_width = SD_BUS_WIDTH_4;
-	} else {
+	else
 		bus_width = SD_BUS_WIDTH_1;
-	}
 
 	retval = sd_change_phase(chip, sample_point, TUNE_RX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_DEBUGP("mmc ddr tuning rx\n");
 
@@ -1541,9 +1496,8 @@ static int sd_sdr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	int retval;
 
 	retval = sd_change_phase(chip, sample_point, TUNE_TX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, SD_RSP_80CLK_TIMEOUT_EN);
 
@@ -1568,26 +1522,23 @@ static int sd_ddr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	u8 cmd[5], bus_width;
 
 	retval = sd_change_phase(chip, sample_point, TUNE_TX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (CHK_SD(sd_card)) {
 		bus_width = SD_BUS_WIDTH_4;
 	} else {
-		if (CHK_MMC_8BIT(sd_card)) {
+		if (CHK_MMC_8BIT(sd_card))
 			bus_width = SD_BUS_WIDTH_8;
-		} else if (CHK_MMC_4BIT(sd_card)) {
+		else if (CHK_MMC_4BIT(sd_card))
 			bus_width = SD_BUS_WIDTH_4;
-		} else {
+		else
 			bus_width = SD_BUS_WIDTH_1;
-		}
 	}
 
 	retval = sd_wait_state_data_ready(chip, 0x08, 1, 1000);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, SD_RSP_80CLK_TIMEOUT_EN);
 
@@ -1621,11 +1572,10 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map, u8 tune_d
 	u8 final_phase = 0xFF;
 
 	if (phase_map == 0xFFFFFFFF) {
-		if (tune_dir == TUNE_RX) {
+		if (tune_dir == TUNE_RX)
 			final_phase = (u8)chip->sd_default_rx_phase;
-		} else {
+		else
 			final_phase = (u8)chip->sd_default_tx_phase;
-		}
 
 		goto Search_Finish;
 	}
@@ -1666,9 +1616,9 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map, u8 tune_d
 		path[0].start = path[cont_path_cnt - 1].start - MAX_PHASE - 1;
 		path[0].len += path[cont_path_cnt - 1].len;
 		path[0].mid = path[0].start + path[0].len / 2;
-		if (path[0].mid < 0) {
+		if (path[0].mid < 0)
 			path[0].mid += MAX_PHASE + 1;
-		}
+
 		cont_path_cnt--;
 	}
 
@@ -1696,11 +1646,10 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map, u8 tune_d
 				int temp_final_phase =
 					path[final_path_idx].end - (max_len - (6 + temp_mid));
 
-				if (temp_final_phase < 0) {
+				if (temp_final_phase < 0)
 					final_phase = (u8)(temp_final_phase + MAX_PHASE + 1);
-				} else {
+				else
 					final_phase = (u8)temp_final_phase;
-				}
 			}
 		} else if (CHK_SD_SDR50(sd_card)) {
 			if (max_len > 12) {
@@ -1708,11 +1657,10 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map, u8 tune_d
 				int temp_final_phase =
 					path[final_path_idx].end - (max_len - (3 + temp_mid));
 
-				if (temp_final_phase < 0) {
+				if (temp_final_phase < 0)
 					final_phase = (u8)(temp_final_phase + MAX_PHASE + 1);
-				} else {
+				else
 					final_phase = (u8)temp_final_phase;
-				}
 			}
 		}
 	}
@@ -1732,17 +1680,16 @@ static int sd_tuning_rx(struct rtsx_chip *chip)
 	int (*tuning_cmd)(struct rtsx_chip *chip, u8 sample_point);
 
 	if (CHK_SD(sd_card)) {
-		if (CHK_SD_DDR50(sd_card)) {
+		if (CHK_SD_DDR50(sd_card))
 			tuning_cmd = sd_ddr_tuning_rx_cmd;
-		} else {
+		else
 			tuning_cmd = sd_sdr_tuning_rx_cmd;
-		}
+
 	} else {
-		if (CHK_MMC_DDR52(sd_card)) {
+		if (CHK_MMC_DDR52(sd_card))
 			tuning_cmd = mmc_ddr_tunning_rx_cmd;
-		} else {
+		else
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	for (i = 0; i < 3; i++) {
@@ -1754,27 +1701,24 @@ static int sd_tuning_rx(struct rtsx_chip *chip)
 			}
 
 			retval = tuning_cmd(chip, (u8)j);
-			if (retval == STATUS_SUCCESS) {
+			if (retval == STATUS_SUCCESS)
 				raw_phase_map[i] |= 1 << j;
-			}
 		}
 	}
 
 	phase_map = raw_phase_map[0] & raw_phase_map[1] & raw_phase_map[2];
-	for (i = 0; i < 3; i++) {
+	for (i = 0; i < 3; i++)
 		RTSX_DEBUGP("RX raw_phase_map[%d] = 0x%08x\n", i, raw_phase_map[i]);
-	}
+
 	RTSX_DEBUGP("RX phase_map = 0x%08x\n", phase_map);
 
 	final_phase = sd_search_final_phase(chip, phase_map, TUNE_RX);
-	if (final_phase == 0xFF) {
+	if (final_phase == 0xFF)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_change_phase(chip, final_phase, TUNE_RX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1799,15 +1743,13 @@ static int sd_ddr_pre_tuning_tx(struct rtsx_chip *chip)
 		}
 
 		retval = sd_change_phase(chip, (u8)i, TUNE_TX);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			continue;
-		}
 
 		retval = sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0);
-		if ((retval == STATUS_SUCCESS) || !sd_check_err_code(chip, SD_RSP_TIMEOUT)) {
+		if ((retval == STATUS_SUCCESS) || !sd_check_err_code(chip, SD_RSP_TIMEOUT))
 			phase_map |= 1 << i;
-		}
 	}
 
 	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
@@ -1815,14 +1757,12 @@ static int sd_ddr_pre_tuning_tx(struct rtsx_chip *chip)
 	RTSX_DEBUGP("DDR TX pre tune phase_map = 0x%08x\n", phase_map);
 
 	final_phase = sd_search_final_phase(chip, phase_map, TUNE_TX);
-	if (final_phase == 0xFF) {
+	if (final_phase == 0xFF)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_change_phase(chip, final_phase, TUNE_TX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_DEBUGP("DDR TX pre tune phase: %d\n", (int)final_phase);
 
@@ -1839,17 +1779,16 @@ static int sd_tuning_tx(struct rtsx_chip *chip)
 	int (*tuning_cmd)(struct rtsx_chip *chip, u8 sample_point);
 
 	if (CHK_SD(sd_card)) {
-		if (CHK_SD_DDR50(sd_card)) {
+		if (CHK_SD_DDR50(sd_card))
 			tuning_cmd = sd_ddr_tuning_tx_cmd;
-		} else {
+		else
 			tuning_cmd = sd_sdr_tuning_tx_cmd;
-		}
+
 	} else {
-		if (CHK_MMC_DDR52(sd_card)) {
+		if (CHK_MMC_DDR52(sd_card))
 			tuning_cmd = sd_ddr_tuning_tx_cmd;
-		} else {
+		else
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	for (i = 0; i < 3; i++) {
@@ -1863,27 +1802,24 @@ static int sd_tuning_tx(struct rtsx_chip *chip)
 			}
 
 			retval = tuning_cmd(chip, (u8)j);
-			if (retval == STATUS_SUCCESS) {
+			if (retval == STATUS_SUCCESS)
 				raw_phase_map[i] |= 1 << j;
-			}
 		}
 	}
 
 	phase_map = raw_phase_map[0] & raw_phase_map[1] & raw_phase_map[2];
-	for (i = 0; i < 3; i++) {
+	for (i = 0; i < 3; i++)
 		RTSX_DEBUGP("TX raw_phase_map[%d] = 0x%08x\n", i, raw_phase_map[i]);
-	}
+
 	RTSX_DEBUGP("TX phase_map = 0x%08x\n", phase_map);
 
 	final_phase = sd_search_final_phase(chip, phase_map, TUNE_TX);
-	if (final_phase == 0xFF) {
+	if (final_phase == 0xFF)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_change_phase(chip, final_phase, TUNE_TX);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1893,14 +1829,12 @@ static int sd_sdr_tuning(struct rtsx_chip *chip)
 	int retval;
 
 	retval = sd_tuning_tx(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_tuning_rx(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -1911,26 +1845,22 @@ static int sd_ddr_tuning(struct rtsx_chip *chip)
 
 	if (!(chip->sd_ctl & SD_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_ddr_pre_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		retval = sd_change_phase(chip, (u8)chip->sd_ddr_tx_phase, TUNE_TX);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	retval = sd_tuning_rx(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (!(chip->sd_ctl & SD_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1942,26 +1872,22 @@ static int mmc_ddr_tuning(struct rtsx_chip *chip)
 
 	if (!(chip->sd_ctl & MMC_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_ddr_pre_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		retval = sd_change_phase(chip, (u8)chip->mmc_ddr_tx_phase, TUNE_TX);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	retval = sd_tuning_rx(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (!(chip->sd_ctl & MMC_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1974,9 +1900,8 @@ int sd_switch_clock(struct rtsx_chip *chip)
 	int re_tuning = 0;
 
 	retval = select_card(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (CHECK_PID(chip, 0x5209) &&
 			(CHK_SD30_SPEED(sd_card) || CHK_MMC_DDR52(sd_card))) {
@@ -1987,26 +1912,22 @@ int sd_switch_clock(struct rtsx_chip *chip)
 	}
 
 	retval = switch_clock(chip, sd_card->sd_clock);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (re_tuning) {
 		if (CHK_SD(sd_card)) {
-			if (CHK_SD_DDR50(sd_card)) {
+			if (CHK_SD_DDR50(sd_card))
 				retval = sd_ddr_tuning(chip);
-			} else {
+			else
 				retval = sd_sdr_tuning(chip);
-			}
 		} else {
-			if (CHK_MMC_DDR52(sd_card)) {
+			if (CHK_MMC_DDR52(sd_card))
 				retval = mmc_ddr_tuning(chip);
-			}
 		}
 
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	return STATUS_SUCCESS;
@@ -2017,11 +1938,10 @@ static int sd_prepare_reset(struct rtsx_chip *chip)
 	struct sd_info *sd_card = &(chip->sd_card);
 	int retval;
 
-	if (chip->asic_code) {
+	if (chip->asic_code)
 		sd_card->sd_clock = 29;
-	} else {
+	else
 		sd_card->sd_clock = CLK_30;
-	}
 
 	sd_card->sd_type = 0;
 	sd_card->seq_mode = 0;
@@ -2037,9 +1957,8 @@ static int sd_prepare_reset(struct rtsx_chip *chip)
 	chip->sd_io = 0;
 
 	retval = sd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, retval);
-	}
 
 	if (CHECK_PID(chip, 0x5209)) {
 		RTSX_WRITE_REG(chip, REG_SD_CFG1, 0xFF,
@@ -2053,9 +1972,8 @@ static int sd_prepare_reset(struct rtsx_chip *chip)
 	RTSX_WRITE_REG(chip, CARD_STOP, SD_STOP | SD_CLR_ERR, SD_STOP | SD_CLR_ERR);
 
 	retval = select_card(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2122,9 +2040,8 @@ int sd_pull_ctl_enable(struct rtsx_chip *chip)
 	}
 
 	retval = rtsx_send_cmd(chip, SD_CARD, 100);
-	if (retval < 0) {
+	if (retval < 0)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2133,42 +2050,37 @@ static int sd_init_power(struct rtsx_chip *chip)
 {
 	int retval;
 
-	if (CHECK_PID(chip, 0x5209)) {
+	if (CHECK_PID(chip, 0x5209))
 		RTSX_WRITE_REG(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_OFF);
-	}
 
 	retval = sd_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (!chip->ft2_fast_mode) {
+	if (!chip->ft2_fast_mode)
 		wait_timeout(250);
-	}
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (chip->asic_code) {
 		retval = sd_pull_ctl_enable(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		RTSX_WRITE_REG(chip, FPGA_PULL_CTL, FPGA_SD_PULL_CTL_BIT | 0x20, 0);
 	}
 
 	if (chip->ft2_fast_mode) {
-		if (CHECK_PID(chip, 0x5209)) {
+		if (CHECK_PID(chip, 0x5209))
 			RTSX_WRITE_REG(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_ON);
-		}
+
 	} else {
 		retval = card_power_on(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		wait_timeout(260);
 
 #ifdef SUPPORT_OCP
@@ -2214,13 +2126,12 @@ static int sd_read_lba0(struct rtsx_chip *chip)
 	if (CHK_SD(sd_card)) {
 		bus_width = SD_BUS_WIDTH_4;
 	} else {
-		if (CHK_MMC_8BIT(sd_card)) {
+		if (CHK_MMC_8BIT(sd_card))
 			bus_width = SD_BUS_WIDTH_8;
-		} else if (CHK_MMC_4BIT(sd_card)) {
+		else if (CHK_MMC_4BIT(sd_card))
 			bus_width = SD_BUS_WIDTH_4;
-		} else {
+		else
 			bus_width = SD_BUS_WIDTH_1;
-		}
 	}
 
 	retval = sd_read_data(chip, SD_TM_NORMAL_READ, cmd,
@@ -2243,9 +2154,8 @@ static int sd_check_wp_state(struct rtsx_chip *chip)
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD,
 			sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	cmd[0] = 0x40 | SD_STATUS;
 	cmd[1] = 0;
@@ -2273,9 +2183,8 @@ static int sd_check_wp_state(struct rtsx_chip *chip)
 
 	/* Check SD Machanical Write-Protect Switch */
 	val = rtsx_readl(chip, RTSX_BIPR);
-	if (val & SD_WRITE_PROTECT) {
+	if (val & SD_WRITE_PROTECT)
 		chip->card_wp |= SD_CARD;
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -2307,14 +2216,12 @@ Switch_Fail:
 #endif
 
 	retval = sd_prepare_reset(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_dummy_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip) && try_sdio) {
 		int rty_cnt = 0;
@@ -2348,9 +2255,8 @@ Switch_Fail:
 	/* Start Initialization Process of SD Card */
 RTY_SD_RST:
 	retval = sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 	       TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	wait_timeout(20);
 
@@ -2377,9 +2283,8 @@ RTY_SD_RST:
 		voltage = SUPPORT_VOLTAGE;
 
 		retval = sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 		       TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		wait_timeout(20);
 	}
@@ -2393,42 +2298,38 @@ RTY_SD_RST:
 			}
 
 			j++;
-			if (j < 3) {
+			if (j < 3)
 				goto RTY_SD_RST;
-			} else {
+			else
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 
 		retval = sd_send_cmd_get_rsp(chip, SD_APP_OP_COND, voltage, SD_RSP_TYPE_R3, rsp, 5);
 		if (retval != STATUS_SUCCESS) {
 			k++;
-			if (k < 3) {
+			if (k < 3)
 				goto RTY_SD_RST;
-			} else {
+			else
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 
 		i++;
 		wait_timeout(20);
 	} while (!(rsp[1] & 0x80) && (i < 255));
 
-	if (i == 255) {
+	if (i == 255)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (hi_cap_flow) {
-		if (rsp[1] & 0x40) {
+		if (rsp[1] & 0x40)
 			SET_SD_HCXC(sd_card);
-		} else {
+		else
 			CLR_SD_HCXC(sd_card);
-		}
-		if (CHECK_PID(chip, 0x5209) && CHK_SD_HCXC(sd_card) && !sd20_mode) {
+
+		if (CHECK_PID(chip, 0x5209) && CHK_SD_HCXC(sd_card) && !sd20_mode)
 			support_1v8 = (rsp[1] & 0x01) ? 1 : 0;
-		} else {
+		else
 			support_1v8 = 0;
-		}
 	} else {
 		CLR_SD_HCXC(sd_card);
 		support_1v8 = 0;
@@ -2437,46 +2338,39 @@ RTY_SD_RST:
 
 	if (support_1v8) {
 		retval = sd_voltage_switch(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 	retval = sd_send_cmd_get_rsp(chip, ALL_SEND_CID, 0, SD_RSP_TYPE_R2, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	for (i = 0; i < 3; i++) {
 		retval = sd_send_cmd_get_rsp(chip, SEND_RELATIVE_ADDR, 0, SD_RSP_TYPE_R6, rsp, 5);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		sd_card->sd_addr = (u32)rsp[1] << 24;
 		sd_card->sd_addr += (u32)rsp[2] << 16;
 
-		if (sd_card->sd_addr) {
+		if (sd_card->sd_addr)
 			break;
-		}
 	}
 
 	retval = sd_check_csd(chip, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_select_card(chip, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 #ifdef SUPPORT_SD_LOCK
 SD_UNLOCK_ENTRY:
 	retval = sd_update_lock_status(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (sd_card->sd_lock_status & SD_LOCKED) {
 		sd_card->sd_lock_status |= (SD_LOCK_1BIT_MODE | SD_PWD_EXIST);
@@ -2487,23 +2381,21 @@ SD_UNLOCK_ENTRY:
 #endif
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	retval = sd_send_cmd_get_rsp(chip, SET_CLR_CARD_DETECT, 0, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (support_1v8) {
 		retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = sd_send_cmd_get_rsp(chip, SET_BUS_WIDTH, 2, SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		switch_bus_width = SD_BUS_WIDTH_4;
 	} else {
@@ -2511,14 +2403,12 @@ SD_UNLOCK_ENTRY:
 	}
 
 	retval = sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (!(sd_card->raw_csd[4] & 0x40))
 		sd_dont_switch = 1;
@@ -2537,9 +2427,9 @@ SD_UNLOCK_ENTRY:
 		if (retval == STATUS_SUCCESS) {
 			retval = sd_switch_function(chip, switch_bus_width);
 			if (retval != STATUS_SUCCESS) {
-				if (CHECK_PID(chip, 0x5209)) {
+				if (CHECK_PID(chip, 0x5209))
 					sd_change_bank_voltage(chip, SD_IO_3V3);
-				}
+
 				sd_init_power(chip);
 				sd_dont_switch = 1;
 				try_sdio = 0;
@@ -2548,9 +2438,9 @@ SD_UNLOCK_ENTRY:
 			}
 		} else {
 			if (support_1v8) {
-				if (CHECK_PID(chip, 0x5209)) {
+				if (CHECK_PID(chip, 0x5209))
 					sd_change_bank_voltage(chip, SD_IO_3V3);
-				}
+
 				sd_init_power(chip);
 				sd_dont_switch = 1;
 				try_sdio = 0;
@@ -2562,13 +2452,12 @@ SD_UNLOCK_ENTRY:
 
 	if (!support_1v8) {
 		retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		retval = sd_send_cmd_get_rsp(chip, SET_BUS_WIDTH, 2, SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	}
 
 #ifdef SUPPORT_SD_LOCK
@@ -2581,24 +2470,22 @@ SD_UNLOCK_ENTRY:
 		RTSX_WRITE_REG(chip, SD30_DRIVE_SEL, 0x07, chip->sd30_drive_sel_1v8);
 
 		retval = sd_set_init_para(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
-		if (CHK_SD_DDR50(sd_card)) {
+		if (CHK_SD_DDR50(sd_card))
 			retval = sd_ddr_tuning(chip);
-		} else {
+		else
 			retval = sd_sdr_tuning(chip);
-		}
 
 		if (retval != STATUS_SUCCESS) {
 			if (sd20_mode) {
 				TRACE_RET(chip, STATUS_FAIL);
 			} else {
 				retval = sd_init_power(chip);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 				try_sdio = 0;
 				sd20_mode = 1;
 				goto Switch_Fail;
@@ -2609,9 +2496,8 @@ SD_UNLOCK_ENTRY:
 
 		if (CHK_SD_DDR50(sd_card)) {
 			retval = sd_wait_state_data_ready(chip, 0x08, 1, 1000);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				read_lba0 = 0;
-			}
 		}
 
 		if (read_lba0) {
@@ -2621,9 +2507,9 @@ SD_UNLOCK_ENTRY:
 					TRACE_RET(chip, STATUS_FAIL);
 				} else {
 					retval = sd_init_power(chip);
-					if (retval != STATUS_SUCCESS) {
+					if (retval != STATUS_SUCCESS)
 						TRACE_RET(chip, STATUS_FAIL);
-					}
+
 					try_sdio = 0;
 					sd20_mode = 1;
 					goto Switch_Fail;
@@ -2633,9 +2519,8 @@ SD_UNLOCK_ENTRY:
 	}
 
 	retval = sd_check_wp_state(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	chip->card_bus_width[chip->card2lun[SD_CARD]] = 4;
 
@@ -2659,9 +2544,8 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 	int len;
 
 	retval = sd_send_cmd_get_rsp(chip, BUSTEST_W, 0, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, SWITCH_FAIL);
-	}
 
 	if (width == MMC_8BIT_BUS) {
 		buf[0] = 0x55;
@@ -2690,9 +2574,8 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 			rtsx_read_register(chip, REG_SD_STAT1, &val1);
 			rtsx_read_register(chip, REG_SD_STAT2, &val2);
 			rtsx_clear_sd_error(chip);
-			if ((val1 & 0xE0) || val2) {
+			if ((val1 & 0xE0) || val2)
 				TRACE_RET(chip, SWITCH_ERR);
-			}
 		} else {
 			rtsx_clear_sd_error(chip);
 			rtsx_write_register(chip, REG_SD_CFG3, 0x02, 0);
@@ -2712,11 +2595,10 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CMD0, 0xFF, 0x40 | BUSTEST_R);
 
-	if (width == MMC_8BIT_BUS) {
+	if (width == MMC_8BIT_BUS)
 		rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_BYTE_CNT_L, 0xFF, 0x08);
-	} else {
+	else
 		rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_BYTE_CNT_L, 0xFF, 0x04);
-	}
 
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_BLOCK_CNT_L, 0xFF, 1);
 	rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_BLOCK_CNT_H, 0xFF, 0);
@@ -2729,9 +2611,8 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 	rtsx_add_cmd(chip, CHECK_REG_CMD, REG_SD_TRANSFER, SD_TRANSFER_END, SD_TRANSFER_END);
 
 	rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2, 0, 0);
-	if (width == MMC_8BIT_BUS) {
+	if (width == MMC_8BIT_BUS)
 		rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 1, 0, 0);
-	}
 
 	retval = rtsx_send_cmd(chip, SD_CARD, 100);
 	if (retval < 0) {
@@ -2747,15 +2628,14 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 			u8 rsp[5];
 			u32 arg;
 
-			if (CHK_MMC_DDR52(sd_card)) {
+			if (CHK_MMC_DDR52(sd_card))
 				arg = 0x03B70600;
-			} else {
+			else
 				arg = 0x03B70200;
-			}
+
 			retval = sd_send_cmd_get_rsp(chip, SWITCH, arg, SD_RSP_TYPE_R1b, rsp, 5);
-			if ((retval == STATUS_SUCCESS) && !(rsp[4] & MMC_SWITCH_ERR)) {
+			if ((retval == STATUS_SUCCESS) && !(rsp[4] & MMC_SWITCH_ERR))
 				return SWITCH_SUCCESS;
-			}
 		}
 	} else {
 		RTSX_DEBUGP("BUSTEST_R [4bits]: 0x%02x\n", ptr[0]);
@@ -2763,15 +2643,14 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 			u8 rsp[5];
 			u32 arg;
 
-			if (CHK_MMC_DDR52(sd_card)) {
+			if (CHK_MMC_DDR52(sd_card))
 				arg = 0x03B70500;
-			} else {
+			else
 				arg = 0x03B70100;
-			}
+
 			retval = sd_send_cmd_get_rsp(chip, SWITCH, arg, SD_RSP_TYPE_R1b, rsp, 5);
-			if ((retval == STATUS_SUCCESS) && !(rsp[4] & MMC_SWITCH_ERR)) {
+			if ((retval == STATUS_SUCCESS) && !(rsp[4] & MMC_SWITCH_ERR))
 				return SWITCH_SUCCESS;
-			}
 		}
 	}
 
@@ -2845,11 +2724,10 @@ static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
 			card_type_mask = 0x03;
 		}
 #else
-		if (chip->sd_ctl & SUPPORT_MMC_DDR_MODE) {
+		if (chip->sd_ctl & SUPPORT_MMC_DDR_MODE)
 			card_type_mask = 0x07;
-		} else {
+		else
 			card_type_mask = 0x03;
-		}
 #endif
 	} else {
 		card_type_mask = 0x03;
@@ -2859,11 +2737,10 @@ static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
 		u8 rsp[5];
 
 		if (card_type & 0x04) {
-			if (switch_ddr) {
+			if (switch_ddr)
 				SET_MMC_DDR52(sd_card);
-			} else {
+			else
 				SET_MMC_52M(sd_card);
-			}
 		} else if (card_type & 0x02) {
 			SET_MMC_52M(sd_card);
 		} else {
@@ -2872,16 +2749,14 @@ static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
 
 		retval = sd_send_cmd_get_rsp(chip, SWITCH,
 				0x03B90100, SD_RSP_TYPE_R1b, rsp, 5);
-		if ((retval != STATUS_SUCCESS) || (rsp[4] & MMC_SWITCH_ERR)) {
+		if ((retval != STATUS_SUCCESS) || (rsp[4] & MMC_SWITCH_ERR))
 			CLR_MMC_HS(sd_card);
-		}
 	}
 
 	sd_choose_proper_clock(chip);
 	retval = switch_clock(chip, sd_card->sd_clock);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	/* Test Bus Procedure */
 	retval = mmc_test_switch_bus(chip, MMC_8BIT_BUS);
@@ -2929,17 +2804,15 @@ static int reset_mmc(struct rtsx_chip *chip)
 
 Switch_Fail:
 	retval = sd_prepare_reset(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, retval);
-	}
 
 	SET_MMC(sd_card);
 
 RTY_MMC_RST:
 	retval = sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 	       TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	do {
 		if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
@@ -2973,56 +2846,47 @@ RTY_MMC_RST:
 		i++;
 	} while (!(rsp[1] & 0x80) && (i < 255));
 
-	if (i == 255) {
+	if (i == 255)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if ((rsp[1] & 0x60) == 0x40) {
+	if ((rsp[1] & 0x60) == 0x40)
 		SET_MMC_SECTOR_MODE(sd_card);
-	} else {
+	else
 		CLR_MMC_SECTOR_MODE(sd_card);
-	}
 
 	retval = sd_send_cmd_get_rsp(chip, ALL_SEND_CID, 0, SD_RSP_TYPE_R2, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	sd_card->sd_addr = 0x00100000;
 	retval = sd_send_cmd_get_rsp(chip, SET_RELATIVE_ADDR, sd_card->sd_addr, SD_RSP_TYPE_R6, rsp, 5);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_check_csd(chip, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	spec_ver = (sd_card->raw_csd[0] & 0x3C) >> 2;
 
 	retval = sd_select_card(chip, 1);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 #ifdef SUPPORT_SD_LOCK
 MMC_UNLOCK_ENTRY:
 	retval = sd_update_lock_status(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 #endif
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	chip->card_bus_width[chip->card2lun[SD_CARD]] = 1;
 
@@ -3039,22 +2903,20 @@ MMC_UNLOCK_ENTRY:
 			}
 		}
 
-		if (CHK_MMC_SECTOR_MODE(sd_card) && (sd_card->capacity == 0)) {
+		if (CHK_MMC_SECTOR_MODE(sd_card) && (sd_card->capacity == 0))
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (switch_ddr && CHK_MMC_DDR52(sd_card)) {
 			retval = sd_set_init_para(chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 
 			retval = mmc_ddr_tuning(chip);
 			if (retval != STATUS_SUCCESS) {
 				retval = sd_init_power(chip);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 				switch_ddr = 0;
 				TRACE_GOTO(chip, Switch_Fail);
 			}
@@ -3064,9 +2926,9 @@ MMC_UNLOCK_ENTRY:
 				retval = sd_read_lba0(chip);
 				if (retval != STATUS_SUCCESS) {
 					retval = sd_init_power(chip);
-					if (retval != STATUS_SUCCESS) {
+					if (retval != STATUS_SUCCESS)
 						TRACE_RET(chip, STATUS_FAIL);
-					}
+
 					switch_ddr = 0;
 					TRACE_GOTO(chip, Switch_Fail);
 				}
@@ -3082,9 +2944,8 @@ MMC_UNLOCK_ENTRY:
 #endif
 
 	temp = rtsx_readl(chip, RTSX_BIPR);
-	if (temp & SD_WRITE_PROTECT) {
+	if (temp & SD_WRITE_PROTECT)
 		chip->card_wp |= SD_CARD;
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -3100,36 +2961,31 @@ int reset_sd_card(struct rtsx_chip *chip)
 	chip->capacity[chip->card2lun[SD_CARD]] = 0;
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (chip->ignore_sd && CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
 		if (chip->asic_code) {
 			retval = sd_pull_ctl_enable(chip);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		} else {
 			retval = rtsx_write_register(chip, FPGA_PULL_CTL,
 						     FPGA_SD_PULL_CTL_BIT | 0x20, 0);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 		retval = card_share_mode(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		chip->sd_io = 1;
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
 	retval = sd_init_power(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (chip->sd_ctl & RESET_MMC_FIRST) {
 		retval = reset_mmc(chip);
@@ -3168,18 +3024,17 @@ int reset_sd_card(struct rtsx_chip *chip)
 	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_L, 0xFF, 0);
 	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_H, 0xFF, 2);
 
 	chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity;
 
 	retval = sd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_DEBUGP("sd_card->sd_type = 0x%x\n", sd_card->sd_type);
 
@@ -3205,33 +3060,29 @@ static int reset_mmc_only(struct rtsx_chip *chip)
 	chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity = 0;
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_init_power(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = reset_mmc(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
+
 	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_L, 0xFF, 0);
 	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_H, 0xFF, 2);
 
 	chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity;
 
 	retval = sd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_DEBUGP("In reset_mmc_only, sd_card->sd_type = 0x%x\n", sd_card->sd_type);
 
@@ -3255,9 +3106,8 @@ static int wait_data_buf_ready(struct rtsx_chip *chip)
 
 		retval = sd_send_cmd_get_rsp(chip, SEND_STATUS,
 				sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (sd_card->sd_data_buf_ready) {
 			return sd_send_cmd_get_rsp(chip, SEND_STATUS,
@@ -3277,19 +3127,18 @@ void sd_stop_seq_mode(struct rtsx_chip *chip)
 
 	if (sd_card->seq_mode) {
 		retval = sd_switch_clock(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			return;
-		}
 
 		retval = sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION, 0,
 				SD_RSP_TYPE_R1b, NULL, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			sd_set_err_code(chip, SD_STS_ERR);
-		}
+
 		retval = sd_wait_state_data_ready(chip, 0x08, 1, 1000);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			sd_set_err_code(chip, SD_STS_ERR);
-		}
+
 		sd_card->seq_mode = 0;
 
 		rtsx_write_register(chip, RBCTL, RB_FLUSH, RB_FLUSH);
@@ -3302,9 +3151,8 @@ static inline int sd_auto_tune_clock(struct rtsx_chip *chip)
 	int retval;
 
 	if (chip->asic_code) {
-		if (sd_card->sd_clock > 30) {
+		if (sd_card->sd_clock > 30)
 			sd_card->sd_clock -= 20;
-		}
 	} else {
 		switch (sd_card->sd_clock) {
 		case CLK_200:
@@ -3337,9 +3185,8 @@ static inline int sd_auto_tune_clock(struct rtsx_chip *chip)
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -3377,11 +3224,10 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 s
 		}
 	}
 
-	if (!CHK_SD_HCXC(sd_card) && !CHK_MMC_SECTOR_MODE(sd_card)) {
+	if (!CHK_SD_HCXC(sd_card) && !CHK_MMC_SECTOR_MODE(sd_card))
 		data_addr = start_sector << 9;
-	} else {
+	else
 		data_addr = start_sector;
-	}
 
 	sd_clr_err_code(chip);
 
@@ -3436,21 +3282,19 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 s
 
 	rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01, RING_BUFFER);
 
-	if (CHK_MMC_8BIT(sd_card)) {
+	if (CHK_MMC_8BIT(sd_card))
 		rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_8);
-	} else if (CHK_MMC_4BIT(sd_card) || CHK_SD(sd_card)) {
+	else if (CHK_MMC_4BIT(sd_card) || CHK_SD(sd_card))
 		rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-	} else {
+	else
 		rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_1);
-	}
 
 	if (sd_card->seq_mode) {
 		cfg2 = SD_NO_CALCULATE_CRC7 | SD_CHECK_CRC16 | SD_NO_WAIT_BUSY_END |
 				SD_NO_CHECK_CRC7 | SD_RSP_LEN_0;
 		if (CHECK_PID(chip, 0x5209)) {
-			if (!CHK_SD30_SPEED(sd_card)) {
+			if (!CHK_SD30_SPEED(sd_card))
 				cfg2 |= SD_NO_CHECK_WAIT_CRC_TO;
-			}
 		}
 		rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG2, 0xFF, cfg2);
 
@@ -3480,9 +3324,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 s
 			cfg2 = SD_CALCULATE_CRC7 | SD_CHECK_CRC16 | SD_NO_WAIT_BUSY_END |
 					SD_CHECK_CRC7 | SD_RSP_LEN_6;
 			if (CHECK_PID(chip, 0x5209)) {
-				if (!CHK_SD30_SPEED(sd_card)) {
+				if (!CHK_SD30_SPEED(sd_card))
 					cfg2 |= SD_NO_CHECK_WAIT_CRC_TO;
-				}
 			}
 			rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG2, 0xFF, cfg2);
 
@@ -3523,9 +3366,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 s
 			cfg2 = SD_NO_CALCULATE_CRC7 | SD_CHECK_CRC16 | SD_NO_WAIT_BUSY_END |
 					SD_NO_CHECK_CRC7 | SD_RSP_LEN_0;
 			if (CHECK_PID(chip, 0x5209)) {
-				if (!CHK_SD30_SPEED(sd_card)) {
+				if (!CHK_SD30_SPEED(sd_card))
 					cfg2 |= SD_NO_CHECK_WAIT_CRC_TO;
-				}
 			}
 			rtsx_add_cmd(chip, WRITE_REG_CMD, REG_SD_CFG2, 0xFF, cfg2);
 
@@ -3550,11 +3392,10 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector, u16 s
 
 		sd_card->seq_mode = 0;
 
-		if (retval == -ETIMEDOUT) {
+		if (retval == -ETIMEDOUT)
 			err = STATUS_TIMEDOUT;
-		} else {
+		else
 			err = STATUS_FAIL;
-		}
 
 		rtsx_read_register(chip, REG_SD_STAT1, &stat);
 		rtsx_clear_sd_error(chip);
@@ -3640,9 +3481,8 @@ int ext_sd_send_cmd_get_rsp(struct rtsx_chip *chip, u8 cmd_idx,
 
 	RTSX_DEBUGP("EXT SD/MMC CMD %d\n", cmd_idx);
 
-	if (rsp_type == SD_RSP_TYPE_R1b) {
+	if (rsp_type == SD_RSP_TYPE_R1b)
 		timeout = 3000;
-	}
 
 RTY_SEND_CMD:
 
@@ -3662,14 +3502,14 @@ RTY_SEND_CMD:
 	rtsx_add_cmd(chip, CHECK_REG_CMD, REG_SD_TRANSFER, SD_TRANSFER_END, SD_TRANSFER_END);
 
 	if (rsp_type == SD_RSP_TYPE_R2) {
-		for (reg_addr = PPBUF_BASE2; reg_addr < PPBUF_BASE2 + 16; reg_addr++) {
+		for (reg_addr = PPBUF_BASE2; reg_addr < PPBUF_BASE2 + 16; reg_addr++)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0, 0);
-		}
+
 		stat_idx = 17;
 	} else if (rsp_type != SD_RSP_TYPE_R0) {
-		for (reg_addr = REG_SD_CMD0; reg_addr <= REG_SD_CMD4; reg_addr++) {
+		for (reg_addr = REG_SD_CMD0; reg_addr <= REG_SD_CMD4; reg_addr++)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0, 0);
-		}
+
 		stat_idx = 6;
 	}
 	rtsx_add_cmd(chip, READ_REG_CMD, REG_SD_CMD5, 0, 0);
@@ -3683,9 +3523,8 @@ RTY_SEND_CMD:
 
 			if (rsp_type & SD_WAIT_BUSY_END) {
 				retval = sd_check_data0_status(chip);
-				if (retval != STATUS_SUCCESS) {
+				if (retval != STATUS_SUCCESS)
 					TRACE_RET(chip, retval);
-				}
 			} else {
 				sd_set_err_code(chip, SD_TO_ERR);
 			}
@@ -3693,9 +3532,8 @@ RTY_SEND_CMD:
 		TRACE_RET(chip, STATUS_FAIL);
 	}
 
-	if (rsp_type == SD_RSP_TYPE_R0) {
+	if (rsp_type == SD_RSP_TYPE_R0)
 		return STATUS_SUCCESS;
-	}
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
 
@@ -3724,9 +3562,8 @@ RTY_SEND_CMD:
 	if ((cmd_idx == SELECT_CARD) || (cmd_idx == APP_CMD) ||
 			(cmd_idx == SEND_STATUS) || (cmd_idx == STOP_TRANSMISSION)) {
 		if ((cmd_idx != STOP_TRANSMISSION) && (special_check == 0)) {
-			if (ptr[1] & 0x80) {
+			if (ptr[1] & 0x80)
 				TRACE_RET(chip, STATUS_FAIL);
-			}
 		}
 #ifdef SUPPORT_SD_LOCK
 		if (ptr[1] & 0x7D)
@@ -3736,26 +3573,23 @@ RTY_SEND_CMD:
 		{
 			TRACE_RET(chip, STATUS_FAIL);
 		}
-		if (ptr[2] & 0xF8) {
+		if (ptr[2] & 0xF8)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		if (cmd_idx == SELECT_CARD) {
 			if (rsp_type == SD_RSP_TYPE_R2) {
-				if ((ptr[3] & 0x1E) != 0x04) {
+				if ((ptr[3] & 0x1E) != 0x04)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
+
 			} else if (rsp_type == SD_RSP_TYPE_R0) {
-				if ((ptr[3] & 0x1E) != 0x03) {
+				if ((ptr[3] & 0x1E) != 0x03)
 					TRACE_RET(chip, STATUS_FAIL);
-				}
 			}
 		}
 	}
 
-	if (rsp && rsp_len) {
+	if (rsp && rsp_len)
 		memcpy(rsp, ptr, rsp_len);
-	}
 
 	return STATUS_SUCCESS;
 }
@@ -3765,29 +3599,27 @@ int ext_sd_get_rsp(struct rtsx_chip *chip, int len, u8 *rsp, u8 rsp_type)
 	int retval, rsp_len;
 	u16 reg_addr;
 
-	if (rsp_type == SD_RSP_TYPE_R0) {
+	if (rsp_type == SD_RSP_TYPE_R0)
 		return STATUS_SUCCESS;
-	}
 
 	rtsx_init_cmd(chip);
 
 	if (rsp_type == SD_RSP_TYPE_R2) {
-		for (reg_addr = PPBUF_BASE2; reg_addr < PPBUF_BASE2 + 16; reg_addr++) {
+		for (reg_addr = PPBUF_BASE2; reg_addr < PPBUF_BASE2 + 16; reg_addr++)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0xFF, 0);
-		}
+
 		rsp_len = 17;
 	} else if (rsp_type != SD_RSP_TYPE_R0) {
-		for (reg_addr = REG_SD_CMD0; reg_addr <= REG_SD_CMD4; reg_addr++) {
+		for (reg_addr = REG_SD_CMD0; reg_addr <= REG_SD_CMD4; reg_addr++)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr, 0xFF, 0);
-		}
+
 		rsp_len = 6;
 	}
 	rtsx_add_cmd(chip, READ_REG_CMD, REG_SD_CMD5, 0xFF, 0);
 
 	retval = rtsx_send_cmd(chip, SD_CARD, 100);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (rsp) {
 		int min_len = (rsp_len < len) ? rsp_len : len;
@@ -3858,9 +3690,8 @@ int sd_pass_thru_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf[5] = (1 == CHK_SD(sd_card)) ?  0x01 : 0x02;
-	if (chip->card_wp & SD_CARD) {
+	if (chip->card_wp & SD_CARD)
 		buf[5] |= 0x80;
-	}
 
 	buf[6] = (u8)(sd_card->sd_addr >> 16);
 	buf[7] = (u8)(sd_card->sd_addr >> 24);
@@ -3875,9 +3706,8 @@ int sd_pass_thru_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 static inline int get_rsp_type(struct scsi_cmnd *srb, u8 *rsp_type, int *rsp_len)
 {
-	if (!rsp_type || !rsp_len) {
+	if (!rsp_type || !rsp_len)
 		return STATUS_FAIL;
-	}
 
 	switch (srb->cmnd[10]) {
 	case 0x03:
@@ -3927,9 +3757,8 @@ int sd_execute_no_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 	if (sd_card->pre_cmd_err) {
 		sd_card->pre_cmd_err = 0;
@@ -3938,12 +3767,11 @@ int sd_execute_no_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	cmd_idx = srb->cmnd[2] & 0x3F;
-	if (srb->cmnd[1] & 0x02) {
+	if (srb->cmnd[1] & 0x02)
 		standby = 1;
-	}
-	if (srb->cmnd[1] & 0x01) {
+
+	if (srb->cmnd[1] & 0x01)
 		acmd = 1;
-	}
 
 	arg = ((u32)srb->cmnd[3] << 24) | ((u32)srb->cmnd[4] << 16) |
 		((u32)srb->cmnd[5] << 8) | srb->cmnd[6];
@@ -3956,64 +3784,56 @@ int sd_execute_no_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	sd_card->last_rsp_type = rsp_type;
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 #ifdef SUPPORT_SD_LOCK
 	if ((sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) == 0) {
 		if (CHK_MMC_8BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_8);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else if (CHK_SD(sd_card) || CHK_MMC_4BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
 		}
 	}
 #else
 	retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 #endif
 
 	if (standby) {
 		retval = sd_select_card(chip, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
-		}
 	}
 
 	if (acmd) {
 		retval = ext_sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
-		}
 	}
 
 	retval = ext_sd_send_cmd_get_rsp(chip, cmd_idx, arg, rsp_type,
 			sd_card->rsp, rsp_len, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
-	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
-		}
 	}
 
 #ifdef SUPPORT_SD_LOCK
 	retval = sd_update_lock_status(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
-	}
 #endif
 
 	scsi_set_resid(srb, 0);
@@ -4024,9 +3844,8 @@ SD_Execute_Cmd_Failed:
 	set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
 	release_sd_card(chip);
 	do_reset_sd_card(chip);
-	if (!(chip->card_ready & SD_CARD)) {
+	if (!(chip->card_ready & SD_CARD))
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-	}
 
 	TRACE_RET(chip, TRANSPORT_FAILED);
 }
@@ -4053,20 +3872,18 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 	cmd_idx = srb->cmnd[2] & 0x3F;
-	if (srb->cmnd[1] & 0x04) {
+	if (srb->cmnd[1] & 0x04)
 		send_cmd12 = 1;
-	}
-	if (srb->cmnd[1] & 0x02) {
+
+	if (srb->cmnd[1] & 0x02)
 		standby = 1;
-	}
-	if (srb->cmnd[1] & 0x01) {
+
+	if (srb->cmnd[1] & 0x01)
 		acmd = 1;
-	}
 
 	data_len = ((u32)srb->cmnd[7] << 16) | ((u32)srb->cmnd[8] << 8) | srb->cmnd[9];
 
@@ -4078,19 +3895,17 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	sd_card->last_rsp_type = rsp_type;
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 #ifdef SUPPORT_SD_LOCK
 	if ((sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) == 0) {
-		if (CHK_MMC_8BIT(sd_card)) {
+		if (CHK_MMC_8BIT(sd_card))
 			bus_width = SD_BUS_WIDTH_8;
-		} else if (CHK_SD(sd_card) || CHK_MMC_4BIT(sd_card)) {
+		else if (CHK_SD(sd_card) || CHK_MMC_4BIT(sd_card))
 			bus_width = SD_BUS_WIDTH_4;
-		} else {
+		else
 			bus_width = SD_BUS_WIDTH_1;
-		}
 	} else {
 		bus_width = SD_BUS_WIDTH_4;
 	}
@@ -4102,24 +3917,21 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, data_len,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 	}
 
 	if (acmd) {
 		retval = ext_sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 	}
 
 	if (data_len <= 512) {
@@ -4138,9 +3950,8 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		cmd[4] = srb->cmnd[6];
 
 		buf = kmalloc(data_len, GFP_KERNEL);
-		if (buf == NULL) {
+		if (buf == NULL)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		retval = sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, byte_cnt,
 				       blk_cnt, bus_width, buf, data_len, 2000);
@@ -4195,56 +4006,48 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	retval = ext_sd_get_rsp(chip, rsp_len, sd_card->rsp, rsp_type);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 	}
 
 	if (send_cmd12) {
 		retval = ext_sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION,
 				0, SD_RSP_TYPE_R1b, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 	}
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 
 		retval = rtsx_write_register(chip, SD_BYTE_CNT_H, 0xFF, 0x02);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
+
 		retval = rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-		}
 	}
 
-	if ((srb->cmnd[1] & 0x02) || (srb->cmnd[1] & 0x04)) {
+	if ((srb->cmnd[1] & 0x02) || (srb->cmnd[1] & 0x04))
 		cmd13_checkbit = 1;
-	}
 
 	for (i = 0; i < 3; i++) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 			SD_RSP_TYPE_R1, NULL, 0, cmd13_checkbit);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			break;
-		}
 	}
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
-	}
 
 	scsi_set_resid(srb, 0);
 	return TRANSPORT_GOOD;
@@ -4252,14 +4055,13 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 SD_Execute_Read_Cmd_Failed:
 	sd_card->pre_cmd_err = 1;
 	set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
-	if (read_err) {
+	if (read_err)
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-	}
+
 	release_sd_card(chip);
 	do_reset_sd_card(chip);
-	if (!(chip->card_ready & SD_CARD)) {
+	if (!(chip->card_ready & SD_CARD))
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-	}
 
 	TRACE_RET(chip, TRANSPORT_FAILED);
 }
@@ -4291,20 +4093,18 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 	cmd_idx = srb->cmnd[2] & 0x3F;
-	if (srb->cmnd[1] & 0x04) {
+	if (srb->cmnd[1] & 0x04)
 		send_cmd12 = 1;
-	}
-	if (srb->cmnd[1] & 0x02) {
+
+	if (srb->cmnd[1] & 0x02)
 		standby = 1;
-	}
-	if (srb->cmnd[1] & 0x01) {
+
+	if (srb->cmnd[1] & 0x01)
 		acmd = 1;
-	}
 
 	data_len = ((u32)srb->cmnd[7] << 16) | ((u32)srb->cmnd[8] << 8) | srb->cmnd[9];
 	arg = ((u32)srb->cmnd[3] << 24) | ((u32)srb->cmnd[4] << 16) |
@@ -4325,75 +4125,66 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	sd_card->last_rsp_type = rsp_type;
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 
 #ifdef SUPPORT_SD_LOCK
 	if ((sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) == 0) {
 		if (CHK_MMC_8BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_8);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
+
 		} else if (CHK_SD(sd_card) || CHK_MMC_4BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-			if (retval != STATUS_SUCCESS) {
+			if (retval != STATUS_SUCCESS)
 				TRACE_RET(chip, TRANSPORT_FAILED);
-			}
 		}
 	}
 #else
 	retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, TRANSPORT_FAILED);
-	}
 #endif
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, data_len,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 	}
 
 	if (acmd) {
 		retval = ext_sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 	}
 
 	retval = ext_sd_send_cmd_get_rsp(chip, cmd_idx, arg, rsp_type,
 			sd_card->rsp, rsp_len, 0);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-	}
 
 	if (data_len <= 512) {
 		u16 i;
 		u8 *buf;
 
 		buf = kmalloc(data_len, GFP_KERNEL);
-		if (buf == NULL) {
+		if (buf == NULL)
 			TRACE_RET(chip, TRANSPORT_ERROR);
-		}
 
 		rtsx_stor_get_xfer_buf(buf, data_len, srb);
 
 #ifdef SUPPORT_SD_LOCK
-		if (cmd_idx == LOCK_UNLOCK) {
+		if (cmd_idx == LOCK_UNLOCK)
 			lock_cmd_type = buf[0] & 0x0F;
-		}
 #endif
 
 		if (data_len > 256) {
@@ -4485,11 +4276,11 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		}
 
 		rtsx_init_cmd(chip);
-		if (CHECK_PID(chip, 0x5209)) {
+		if (CHECK_PID(chip, 0x5209))
 			rtsx_add_cmd(chip, CHECK_REG_CMD, SD_BUS_STAT, SD_DAT0_STATUS, SD_DAT0_STATUS);
-		} else {
+		else
 			rtsx_add_cmd(chip, CHECK_REG_CMD, 0xFD30, 0x02, 0x02);
-		}
+
 		rtsx_send_cmd(chip, SD_CARD, 250);
 
 		retval = sd_update_lock_status(chip);
@@ -4502,61 +4293,53 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (standby) {
 		retval = sd_select_card(chip, 1);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 	}
 
 	if (send_cmd12) {
 		retval = ext_sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION,
 				0, SD_RSP_TYPE_R1b, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 	}
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200,
 				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 
 		retval = rtsx_write_register(chip, SD_BYTE_CNT_H, 0xFF, 0x02);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
+
 		rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-		}
 	}
 
-	if ((srb->cmnd[1] & 0x02) || (srb->cmnd[1] & 0x04)) {
+	if ((srb->cmnd[1] & 0x02) || (srb->cmnd[1] & 0x04))
 		cmd13_checkbit = 1;
-	}
 
 	for (i = 0; i < 3; i++) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 			SD_RSP_TYPE_R1, NULL, 0, cmd13_checkbit);
-		if (retval == STATUS_SUCCESS) {
+		if (retval == STATUS_SUCCESS)
 			break;
-		}
 	}
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
-	}
 
 #ifdef SUPPORT_SD_LOCK
 	if (cmd_idx == LOCK_UNLOCK) {
 		if (!lock_cmd_fail) {
 			RTSX_DEBUGP("lock_cmd_type = 0x%x\n", lock_cmd_type);
-			if (lock_cmd_type & SD_CLR_PWD) {
+			if (lock_cmd_type & SD_CLR_PWD)
 				sd_card->sd_lock_status &= ~SD_PWD_EXIST;
-			}
-			if (lock_cmd_type & SD_SET_PWD) {
+
+			if (lock_cmd_type & SD_SET_PWD)
 				sd_card->sd_lock_status |= SD_PWD_EXIST;
-			}
 		}
 
 		RTSX_DEBUGP("sd_lock_state = 0x%x, sd_card->sd_lock_status = 0x%x\n",
@@ -4593,14 +4376,13 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 SD_Execute_Write_Cmd_Failed:
 	sd_card->pre_cmd_err = 1;
 	set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
-	if (write_err) {
+	if (write_err)
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
-	}
+
 	release_sd_card(chip);
 	do_reset_sd_card(chip);
-	if (!(chip->card_ready & SD_CARD)) {
+	if (!(chip->card_ready & SD_CARD))
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-	}
 
 	TRACE_RET(chip, TRANSPORT_FAILED);
 }
@@ -4670,9 +4452,8 @@ int sd_hw_rst(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	switch (srb->cmnd[1] & 0x0F) {
 	case 0:
 #ifdef SUPPORT_SD_LOCK
-		if (0x64 == srb->cmnd[9]) {
+		if (0x64 == srb->cmnd[9])
 			sd_card->sd_lock_status |= SD_SDR_RST;
-		}
 #endif
 		retval = reset_sd_card(chip);
 		if (retval != STATUS_SUCCESS) {
@@ -4723,26 +4504,23 @@ int sd_power_off_card3v3(struct rtsx_chip *chip)
 	int retval;
 
 	retval = disable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	RTSX_WRITE_REG(chip, CARD_OE, SD_OUTPUT_EN, 0);
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_off(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
 		wait_timeout(50);
 	}
 
 	if (chip->asic_code) {
 		retval = sd_pull_ctl_disable(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
 			FPGA_SD_PULL_CTL_BIT | 0x20, FPGA_SD_PULL_CTL_BIT);
@@ -4774,19 +4552,16 @@ int release_sd_card(struct rtsx_chip *chip)
 	memset(sd_card->raw_scr, 0, 8);
 
 	retval = sd_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (CHECK_PID(chip, 0x5209)) {
 		retval = sd_change_bank_voltage(chip, SD_IO_3V3);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 
-		if (CHK_SD30_SPEED(sd_card)) {
+		if (CHK_SD30_SPEED(sd_card))
 			RTSX_WRITE_REG(chip, SD30_DRIVE_SEL, 0x07, chip->sd30_drive_sel_3v3);
-		}
 
 		RTSX_WRITE_REG(chip, OCPPARA2, SD_OCP_THD_MASK, chip->sd_400mA_ocp_thd);
 	}
diff --git a/drivers/staging/rts_pstor/trace.h b/drivers/staging/rts_pstor/trace.h
index bc83b49a4eb..cf60a1b872b 100644
--- a/drivers/staging/rts_pstor/trace.h
+++ b/drivers/staging/rts_pstor/trace.h
@@ -83,33 +83,9 @@ do {													\
 #endif
 
 #ifdef CONFIG_RTS_PSTOR_DEBUG
-static inline void rtsx_dump(u8 *buf, int buf_len)
-{
-	int i;
-	u8 tmp[16] = {0};
-	u8 *_ptr = buf;
-
-	for (i = 0; i < ((buf_len)/16); i++) {
-		RTSX_DEBUGP("%02x %02x %02x %02x %02x %02x %02x %02x "
-			"%02x %02x %02x %02x %02x %02x %02x %02x\n",
-			_ptr[0], _ptr[1], _ptr[2], _ptr[3], _ptr[4], _ptr[5],
-			_ptr[6], _ptr[7], _ptr[8], _ptr[9], _ptr[10], _ptr[11],
-			_ptr[12], _ptr[13], _ptr[14], _ptr[15]);
-		_ptr += 16;
-	}
-	if ((buf_len) % 16) {
-		memcpy(tmp, _ptr, (buf_len) % 16);
-		_ptr = tmp;
-		RTSX_DEBUGP("%02x %02x %02x %02x %02x %02x %02x %02x "
-			"%02x %02x %02x %02x %02x %02x %02x %02x\n",
-			_ptr[0], _ptr[1], _ptr[2], _ptr[3], _ptr[4], _ptr[5],
-			_ptr[6], _ptr[7], _ptr[8], _ptr[9], _ptr[10], _ptr[11],
-			_ptr[12], _ptr[13], _ptr[14], _ptr[15]);
-	}
-}
-
-#define RTSX_DUMP(buf, buf_len)		rtsx_dump((u8 *)(buf), (buf_len))
-
+#define RTSX_DUMP(buf, buf_len)					\
+	print_hex_dump(KERN_DEBUG, RTSX_STOR, DUMP_PREFIX_NONE,	\
+				16, 1, (buf), (buf_len), false)
 #else
 #define RTSX_DUMP(buf, buf_len)
 #endif
diff --git a/drivers/staging/sbe-2t3e3/2t3e3.h b/drivers/staging/sbe-2t3e3/2t3e3.h
index 383f2cfc1ad..ccad049c112 100644
--- a/drivers/staging/sbe-2t3e3/2t3e3.h
+++ b/drivers/staging/sbe-2t3e3/2t3e3.h
@@ -789,7 +789,6 @@ void dc_restart(struct channel *);
 void dc_receiver_onoff(struct channel *, u32);
 void dc_transmitter_onoff(struct channel *, u32);
 void dc_set_loopback(struct channel *, u32);
-u32 dc_init_descriptor_list(struct channel *);
 void dc_clear_descriptor_list(struct channel *);
 void dc_drop_descriptor_list(struct channel *);
 void dc_set_output_port(struct channel *);
diff --git a/drivers/staging/sbe-2t3e3/dc.c b/drivers/staging/sbe-2t3e3/dc.c
index 9e81d9036a3..daadd6ea497 100644
--- a/drivers/staging/sbe-2t3e3/dc.c
+++ b/drivers/staging/sbe-2t3e3/dc.c
@@ -17,6 +17,8 @@
 #include "2t3e3.h"
 #include "ctrl.h"
 
+static int dc_init_descriptor_list(struct channel *sc);
+
 void dc_init(struct channel *sc)
 {
 	u32 val;
@@ -307,7 +309,7 @@ void dc_set_loopback(struct channel *sc, u32 mode)
 			      SBE_2T3E3_21143_VAL_FULL_DUPLEX_MODE);
 }
 
-u32 dc_init_descriptor_list(struct channel *sc)
+static int dc_init_descriptor_list(struct channel *sc)
 {
 	u32 i, j;
 	struct sk_buff *m;
@@ -317,7 +319,7 @@ u32 dc_init_descriptor_list(struct channel *sc)
 					    sizeof(t3e3_rx_desc_t), GFP_KERNEL);
 	if (sc->ether.rx_ring == NULL) {
 		dev_err(&sc->pdev->dev, "SBE 2T3E3: no buffer space for RX ring\n");
-		return ENOMEM;
+		return -ENOMEM;
 	}
 
 	if (sc->ether.tx_ring == NULL)
@@ -327,7 +329,7 @@ u32 dc_init_descriptor_list(struct channel *sc)
 		kfree(sc->ether.rx_ring);
 		sc->ether.rx_ring = NULL;
 		dev_err(&sc->pdev->dev, "SBE 2T3E3: no buffer space for RX ring\n");
-		return ENOMEM;
+		return -ENOMEM;
 	}
 
 
@@ -351,7 +353,7 @@ u32 dc_init_descriptor_list(struct channel *sc)
 				sc->ether.tx_ring = NULL;
 				dev_err(&sc->pdev->dev, "SBE 2T3E3: token_alloc err:"
 					" no buffer space for RX ring\n");
-				return ENOBUFS;
+				return -ENOBUFS;
 			}
 			sc->ether.rx_data[i] = m;
 		}
diff --git a/drivers/staging/sbe-2t3e3/module.c b/drivers/staging/sbe-2t3e3/module.c
index cd778b3a02b..8adb17816ad 100644
--- a/drivers/staging/sbe-2t3e3/module.c
+++ b/drivers/staging/sbe-2t3e3/module.c
@@ -67,6 +67,7 @@ static int __devinit t3e3_init_channel(struct channel *channel, struct pci_dev *
 	dev = alloc_hdlcdev(channel);
 	if (!dev) {
 		printk(KERN_ERR "SBE 2T3E3" ": Out of memory\n");
+		err = -ENOMEM;
 		goto free_regions;
 	}
 
@@ -82,8 +83,9 @@ static int __devinit t3e3_init_channel(struct channel *channel, struct pci_dev *
 	else
 		channel->h.slot = 0;
 
-	if (setup_device(dev, channel))
-		goto free_regions;
+	err = setup_device(dev, channel);
+	if (err)
+		goto free_dev;
 
 	pci_read_config_dword(channel->pdev, 0x40, &val); /* mask sleep mode */
 	pci_write_config_dword(channel->pdev, 0x40, val & 0x3FFFFFFF);
@@ -92,14 +94,19 @@ static int __devinit t3e3_init_channel(struct channel *channel, struct pci_dev *
 	pci_read_config_dword(channel->pdev, PCI_COMMAND, &channel->h.command);
 	t3e3_init(channel);
 
-	if (request_irq(dev->irq, &t3e3_intr, IRQF_SHARED, dev->name, dev)) {
+	err = request_irq(dev->irq, &t3e3_intr, IRQF_SHARED, dev->name, dev);
+	if (err) {
 		printk(KERN_WARNING "%s: could not get irq: %d\n", dev->name, dev->irq);
-		goto free_regions;
+		goto unregister_dev;
 	}
 
 	pci_set_drvdata(pdev, channel);
 	return 0;
 
+unregister_dev:
+	unregister_hdlc_device(dev);
+free_dev:
+	free_netdev(dev);
 free_regions:
 	pci_release_regions(pdev);
 disable:
diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c
index c7b5e8bb04f..180c96327b9 100644
--- a/drivers/staging/sbe-2t3e3/netdev.c
+++ b/drivers/staging/sbe-2t3e3/netdev.c
@@ -21,13 +21,13 @@
 #include <linux/interrupt.h>
 #include "2t3e3.h"
 
-int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
 	struct channel *sc = dev_to_priv(dev);
 	int cmd_2t3e3, len, rlen;
 	t3e3_param_t param;
 	t3e3_resp_t  resp;
-	void *data = ifr->ifr_data + sizeof(cmd_2t3e3) + sizeof(len);
+	void __user *data = ifr->ifr_data + sizeof(cmd_2t3e3) + sizeof(len);
 
 	if (cmd == SIOCWANDEV)
 		return hdlc_ioctl(dev, ifr, cmd);
@@ -82,7 +82,7 @@ static struct net_device_stats* t3e3_get_stats(struct net_device *dev)
 	return nstats;
 }
 
-int t3e3_open(struct net_device *dev)
+static int t3e3_open(struct net_device *dev)
 {
 	struct channel *sc = dev_to_priv(dev);
 	int ret = hdlc_open(dev);
@@ -97,7 +97,7 @@ int t3e3_open(struct net_device *dev)
 	return 0;
 }
 
-int t3e3_close(struct net_device *dev)
+static int t3e3_close(struct net_device *dev)
 {
 	struct channel *sc = dev_to_priv(dev);
 	hdlc_close(dev);
diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c
index ca8946acba6..a414e52dd08 100644
--- a/drivers/staging/sep/sep_main.c
+++ b/drivers/staging/sep/sep_main.c
@@ -719,7 +719,7 @@ static int sep_mmap(struct file *filp, struct vm_area_struct *vma)
 
 	if (remap_pfn_range(vma, vma->vm_start, bus_addr >> PAGE_SHIFT,
 		vma->vm_end - vma->vm_start, vma->vm_page_prot)) {
-		dev_dbg(&sep->pdev->dev, "[PID%d] remap_page_range failed\n",
+		dev_dbg(&sep->pdev->dev, "[PID%d] remap_pfn_range failed\n",
 						current->pid);
 		error = -EAGAIN;
 		goto end_function_with_error;
diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 8a362f7af37..099bc69ca00 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -16,8 +16,6 @@
 #include <linux/usb/serial.h>
 #include <linux/uaccess.h>
 
-static bool debug;
-
 /* Version Information */
 #define DRIVER_VERSION "v2.14"
 #define DRIVER_AUTHOR "Tim Gobeli, Quatech, Inc"
@@ -184,11 +182,11 @@ static int port_paranoia_check(struct usb_serial_port *port,
 			       const char *function)
 {
 	if (!port) {
-		dbg("%s - port == NULL", function);
+		pr_debug("%s - port == NULL", function);
 		return -1;
 	}
 	if (!port->serial) {
-		dbg("%s - port->serial == NULL\n", function);
+		pr_debug("%s - port->serial == NULL\n", function);
 		return -1;
 	}
 
@@ -199,12 +197,12 @@ static int serial_paranoia_check(struct usb_serial *serial,
 				 const char *function)
 {
 	if (!serial) {
-		dbg("%s - serial == NULL\n", function);
+		pr_debug("%s - serial == NULL\n", function);
 		return -1;
 	}
 
 	if (!serial->type) {
-		dbg("%s - serial->type == NULL!", function);
+		pr_debug("%s - serial->type == NULL!", function);
 		return -1;
 	}
 
@@ -247,7 +245,6 @@ static void ProcessLineStatus(struct quatech_port *qt_port,
 	qt_port->shadowLSR =
 	    line_status & (SERIAL_LSR_OE | SERIAL_LSR_PE | SERIAL_LSR_FE |
 			   SERIAL_LSR_BI);
-	return;
 }
 
 static void ProcessModemStatus(struct quatech_port *qt_port,
@@ -256,7 +253,6 @@ static void ProcessModemStatus(struct quatech_port *qt_port,
 
 	qt_port->shadowMSR = modem_status;
 	wake_up_interruptible(&qt_port->wait);
-	return;
 }
 
 static void ProcessRxChar(struct tty_struct *tty, struct usb_serial_port *port,
@@ -276,7 +272,7 @@ static void qt_write_bulk_callback(struct urb *urb)
 	status = urb->status;
 
 	if (status) {
-		dbg("nonzero write bulk status received:%d\n", status);
+		dev_dbg(&urb->dev->dev, "nonzero write bulk status received:%d\n", status);
 		return;
 	}
 
@@ -309,16 +305,14 @@ static void qt_read_bulk_callback(struct urb *urb)
 
 	if (urb->status) {
 		qt_port->ReadBulkStopped = 1;
-		dbg("%s - nonzero write bulk status received: %d\n",
-		    __func__, urb->status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero write bulk status received: %d\n",
+			__func__, urb->status);
 		return;
 	}
 
 	tty = tty_port_tty_get(&port->port);
-	if (!tty) {
-		dbg("%s - bad tty pointer - exiting", __func__);
+	if (!tty)
 		return;
-	}
 
 	data = urb->transfer_buffer;
 
@@ -327,21 +321,19 @@ static void qt_read_bulk_callback(struct urb *urb)
 	/* index = MINOR(port->tty->device) - serial->minor; */
 	index = tty->index - serial->minor;
 
-	dbg("%s - port->RxHolding = %d\n", __func__, qt_port->RxHolding);
+	dev_dbg(&port->dev, "%s - port->RxHolding = %d\n", __func__, qt_port->RxHolding);
 
 	if (port_paranoia_check(port, __func__) != 0) {
-		dbg("%s - port_paranoia_check, exiting\n", __func__);
 		qt_port->ReadBulkStopped = 1;
 		goto exit;
 	}
 
-	if (!serial) {
-		dbg("%s - bad serial pointer, exiting\n", __func__);
+	if (!serial)
 		goto exit;
-	}
+
 	if (qt_port->closePending == 1) {
 		/* Were closing , stop reading */
-		dbg("%s - (qt_port->closepending == 1\n", __func__);
+		dev_dbg(&port->dev, "%s - (qt_port->closepending == 1\n", __func__);
 		qt_port->ReadBulkStopped = 1;
 		goto exit;
 	}
@@ -359,12 +351,12 @@ static void qt_read_bulk_callback(struct urb *urb)
 	if (urb->status) {
 		qt_port->ReadBulkStopped = 1;
 
-		dbg("%s - nonzero read bulk status received: %d\n",
-		    __func__, urb->status);
+		dev_dbg(&port->dev, "%s - nonzero read bulk status received: %d\n",
+			__func__, urb->status);
 		goto exit;
 	}
 
-	if (tty && RxCount) {
+	if (RxCount) {
 		flag_data = 0;
 		for (i = 0; i < RxCount; ++i) {
 			/* Look ahead code here */
@@ -375,7 +367,7 @@ static void qt_read_bulk_callback(struct urb *urb)
 				case 0x00:
 					/* line status change 4th byte must follow */
 					if (i > (RxCount - 4)) {
-						dbg("Illegal escape seuences in received data\n");
+						dev_dbg(&port->dev, "Illegal escape seuences in received data\n");
 						break;
 					}
 					ProcessLineStatus(qt_port, data[i + 3]);
@@ -385,9 +377,9 @@ static void qt_read_bulk_callback(struct urb *urb)
 
 				case 0x01:
 					/* Modem status status change 4th byte must follow */
-					dbg("Modem status status.\n");
+					dev_dbg(&port->dev, "Modem status status.\n");
 					if (i > (RxCount - 4)) {
-						dbg("Illegal escape sequences in received data\n");
+						dev_dbg(&port->dev, "Illegal escape sequences in received data\n");
 						break;
 					}
 					ProcessModemStatus(qt_port,
@@ -396,7 +388,7 @@ static void qt_read_bulk_callback(struct urb *urb)
 					flag = 1;
 					break;
 				case 0xff:
-					dbg("No status sequence.\n");
+					dev_dbg(&port->dev, "No status sequence.\n");
 
 					if (tty) {
 						ProcessRxChar(tty, port, data[i]);
@@ -425,10 +417,10 @@ static void qt_read_bulk_callback(struct urb *urb)
 			  qt_read_bulk_callback, port);
 	result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 	if (result)
-		dbg("%s - failed resubmitting read urb, error %d",
-		    __func__, result);
+		dev_dbg(&port->dev, "%s - failed resubmitting read urb, error %d",
+			__func__, result);
 	else {
-		if (tty && RxCount) {
+		if (RxCount) {
 			tty_flip_buffer_push(tty);
 			tty_schedule_flip(tty);
 		}
@@ -521,7 +513,6 @@ static int qt_set_device(struct usb_serial *serial,
 	PortSettings += ((__u16) (device_data->porta));
 
 	length = sizeof(struct qt_get_device_data);
-	dbg("%s - PortSettings = 0x%x\n", __func__, PortSettings);
 
 	result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 				 QT_SET_GET_DEVICE, 0x40, PortSettings,
@@ -695,6 +686,7 @@ static int BoxDisable_SW_FlowCtrl(struct usb_serial *serial, __u16 index)
 
 static int qt_startup(struct usb_serial *serial)
 {
+	struct device *dev = &serial->dev->dev;
 	struct usb_serial_port *port;
 	struct quatech_port *qt_port;
 	struct qt_get_device_data DeviceData;
@@ -706,8 +698,6 @@ static int qt_startup(struct usb_serial *serial)
 		port = serial->port[i];
 		qt_port = kzalloc(sizeof(*qt_port), GFP_KERNEL);
 		if (!qt_port) {
-			dbg("%s: kmalloc for quatech_port (%d) failed!.",
-			    __func__, i);
 			for (--i; i >= 0; i--) {
 				port = serial->port[i];
 				kfree(usb_get_serial_port_data(port));
@@ -722,25 +712,23 @@ static int qt_startup(struct usb_serial *serial)
 	}
 
 	status = qt_get_device(serial, &DeviceData);
-	if (status < 0) {
-		dbg(__FILE__ "box_get_device failed");
+	if (status < 0)
 		goto startup_error;
-	}
 
-	dbg(__FILE__ "DeviceData.portb = 0x%x", DeviceData.portb);
+	dev_dbg(dev, "DeviceData.portb = 0x%x\n", DeviceData.portb);
 
 	DeviceData.portb &= ~FULLPWRBIT;
-	dbg(__FILE__ "Changing DeviceData.portb to 0x%x", DeviceData.portb);
+	dev_dbg(dev, "Changing DeviceData.portb to 0x%x\n", DeviceData.portb);
 
 	status = qt_set_device(serial, &DeviceData);
 	if (status < 0) {
-		dbg(__FILE__ "qt_set_device failed\n");
+		dev_dbg(dev, "qt_set_device failed\n");
 		goto startup_error;
 	}
 
 	status = qt_get_device(serial, &DeviceData);
 	if (status < 0) {
-		dbg(__FILE__ "qt_get_device failed");
+		dev_dbg(dev, "qt_get_device failed\n");
 		goto startup_error;
 	}
 
@@ -784,29 +772,27 @@ static int qt_startup(struct usb_serial *serial)
 
 	status = BoxSetPrebufferLevel(serial);	/* sets to default value */
 	if (status < 0) {
-		dbg(__FILE__ "BoxSetPrebufferLevel failed\n");
+		dev_dbg(dev, "BoxSetPrebufferLevel failed\n");
 		goto startup_error;
 	}
 
 	status = BoxSetATC(serial, ATC_DISABLED);
 	if (status < 0) {
-		dbg(__FILE__ "BoxSetATC failed\n");
+		dev_dbg(dev, "BoxSetATC failed\n");
 		goto startup_error;
 	}
 
-	dbg(__FILE__ "DeviceData.portb = 0x%x", DeviceData.portb);
+	dev_dbg(dev, "DeviceData.portb = 0x%x\n", DeviceData.portb);
 
 	DeviceData.portb |= NEXT_BOARD_POWER_BIT;
-	dbg(__FILE__ "Changing DeviceData.portb to 0x%x", DeviceData.portb);
+	dev_dbg(dev, "Changing DeviceData.portb to 0x%x\n", DeviceData.portb);
 
 	status = qt_set_device(serial, &DeviceData);
 	if (status < 0) {
-		dbg(__FILE__ "qt_set_device failed\n");
+		dev_dbg(dev, "qt_set_device failed\n");
 		goto startup_error;
 	}
 
-	dbg("Exit Success %s\n", __func__);
-
 	return 0;
 
 startup_error:
@@ -817,8 +803,6 @@ startup_error:
 		usb_set_serial_port_data(port, NULL);
 	}
 
-	dbg("Exit fail %s\n", __func__);
-
 	return -EIO;
 }
 
@@ -873,10 +857,10 @@ static int qt_open(struct tty_struct *tty,
 	/* Port specific setups */
 	result = qt_open_channel(serial, port->number, &ChannelData);
 	if (result < 0) {
-		dbg(__FILE__ "qt_open_channel failed\n");
+		dev_dbg(&port->dev, "qt_open_channel failed\n");
 		return result;
 	}
-	dbg(__FILE__ "qt_open_channel completed.\n");
+	dev_dbg(&port->dev, "qt_open_channel completed.\n");
 
 /* FIXME: are these needed?  Does it even do anything useful? */
 	quatech_port->shadowLSR = ChannelData.line_status &
@@ -888,17 +872,15 @@ static int qt_open(struct tty_struct *tty,
 	/* Set Baud rate to default and turn off (default)flow control here */
 	result = qt_setuart(serial, port->number, DEFAULT_DIVISOR, DEFAULT_LCR);
 	if (result < 0) {
-		dbg(__FILE__ "qt_setuart failed\n");
+		dev_dbg(&port->dev, "qt_setuart failed\n");
 		return result;
 	}
-	dbg(__FILE__ "qt_setuart completed.\n");
+	dev_dbg(&port->dev, "qt_setuart completed.\n");
 
 	/*
 	 * Put this here to make it responsive to stty and defaults set by
 	 * the tty layer
 	 */
-	/* FIXME: is this needed? */
-	/* qt_set_termios(tty, port, NULL); */
 
 	/*  Check to see if we've set up our endpoint info yet */
 	if (port0->open_ports == 1) {
@@ -928,12 +910,12 @@ static int qt_open(struct tty_struct *tty,
 
 	}
 
-	dbg("port number is %d\n", port->number);
-	dbg("serial number is %d\n", port->serial->minor);
-	dbg("Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
-	dbg("BulkOut endpoint is %d\n", port->bulk_out_endpointAddress);
-	dbg("Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress);
-	dbg("port's number in the device is %d\n", quatech_port->port_num);
+	dev_dbg(&port->dev, "port number is %d\n", port->number);
+	dev_dbg(&port->dev, "serial number is %d\n", port->serial->minor);
+	dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
+	dev_dbg(&port->dev, "BulkOut endpoint is %d\n", port->bulk_out_endpointAddress);
+	dev_dbg(&port->dev, "Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress);
+	dev_dbg(&port->dev, "port's number in the device is %d\n", quatech_port->port_num);
 	quatech_port->read_urb = port->read_urb;
 
 	/* set up our bulk in urb */
@@ -946,7 +928,7 @@ static int qt_open(struct tty_struct *tty,
 			  quatech_port->read_urb->transfer_buffer_length,
 			  qt_read_bulk_callback, quatech_port);
 
-	dbg("qt_open: bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
+	dev_dbg(&port->dev, "qt_open: bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
 	quatech_port->read_urb_busy = true;
 	result = usb_submit_urb(quatech_port->read_urb, GFP_KERNEL);
 	if (result) {
@@ -980,8 +962,6 @@ static int qt_chars_in_buffer(struct tty_struct *tty)
 			chars = port->write_urb->transfer_buffer_length;
 	}
 
-	dbg("%s - returns %d\n", __func__, chars);
-
 	return chars;
 }
 
@@ -1003,7 +983,7 @@ static void qt_block_until_empty(struct tty_struct *tty,
 
 		wait--;
 		if (wait == 0) {
-			dbg("%s - TIMEOUT", __func__);
+			dev_dbg(&qt_port->port->dev, "%s - TIMEOUT", __func__);
 			return;
 		} else {
 			wait = 30;
@@ -1041,17 +1021,15 @@ static void qt_close(struct usb_serial_port *port)
 	/* Close uart channel */
 	status = qt_close_channel(serial, index);
 	if (status < 0)
-		dbg("%s - port %d qt_close_channel failed.\n",
-		    __func__, port->number);
+		dev_dbg(&port->dev, "%s - port %d qt_close_channel failed.\n", __func__, port->number);
 
 	port0->open_ports--;
 
-	dbg("qt_num_open_ports in close%d:in port%d\n",
-	    port0->open_ports, port->number);
+	dev_dbg(&port->dev, "qt_num_open_ports in close%d:in port%d\n", port0->open_ports, port->number);
 
 	if (port0->open_ports == 0) {
 		if (serial->port[0]->interrupt_in_urb) {
-			dbg("%s", "Shutdown interrupt_in_urb\n");
+			dev_dbg(&port->dev, "%s", "Shutdown interrupt_in_urb\n");
 			usb_kill_urb(serial->port[0]->interrupt_in_urb);
 		}
 
@@ -1075,14 +1053,14 @@ static int qt_write(struct tty_struct *tty, struct usb_serial_port *port,
 		return -ENODEV;
 
 	if (count == 0) {
-		dbg("%s - write request of 0 bytes\n", __func__);
+		dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
 		return 0;
 	}
 
 	/* only do something if we have a bulk out endpoint */
 	if (serial->num_bulk_out) {
 		if (port->write_urb->status == -EINPROGRESS) {
-			dbg("%s - already writing\n", __func__);
+			dev_dbg(&port->dev, "%s - already writing\n", __func__);
 			return 0;
 		}
 
@@ -1102,8 +1080,8 @@ static int qt_write(struct tty_struct *tty, struct usb_serial_port *port,
 		/* send the data out the bulk port */
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (result)
-			dbg("%s - failed submitting write urb, error %d\n",
-			    __func__, result);
+			dev_dbg(&port->dev, "%s - failed submitting write urb, error %d\n",
+				__func__, result);
 		else
 			result = count;
 
@@ -1122,10 +1100,8 @@ static int qt_write_room(struct tty_struct *tty)
 
 	int retval = -EINVAL;
 
-	if (port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port\n");
+	if (port_paranoia_check(port, __func__))
 		return -1;
-	}
 
 	serial = get_usb_serial(port, __func__);
 
@@ -1154,7 +1130,7 @@ static int qt_ioctl(struct tty_struct *tty,
 	struct usb_serial *serial = get_usb_serial(port, __func__);
 	unsigned int index;
 
-	dbg("%s cmd 0x%04x", __func__, cmd);
+	dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
 
 	index = tty->index - serial->minor;
 
@@ -1187,7 +1163,7 @@ static int qt_ioctl(struct tty_struct *tty,
 		return 0;
 	}
 
-	dbg("%s -No ioctl for that one.  port = %d\n", __func__, port->number);
+	dev_dbg(&port->dev, "%s -No ioctl for that one.  port = %d\n", __func__, port->number);
 	return -ENOIOCTLCMD;
 }
 
@@ -1195,7 +1171,7 @@ static void qt_set_termios(struct tty_struct *tty,
 			   struct usb_serial_port *port,
 			   struct ktermios *old_termios)
 {
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	unsigned char new_LCR = 0;
 	unsigned int cflag = termios->c_cflag;
 	unsigned int index;
@@ -1204,7 +1180,7 @@ static void qt_set_termios(struct tty_struct *tty,
 
 	index = tty->index - port->serial->minor;
 
-	switch (cflag) {
+	switch (cflag & CSIZE) {
 	case CS5:
 		new_LCR |= SERIAL_5_DATA;
 		break;
@@ -1215,6 +1191,8 @@ static void qt_set_termios(struct tty_struct *tty,
 		new_LCR |= SERIAL_7_DATA;
 		break;
 	default:
+		termios->c_cflag &= ~CSIZE;
+		termios->c_cflag |= CS8;
 	case CS8:
 		new_LCR |= SERIAL_8_DATA;
 		break;
@@ -1232,7 +1210,7 @@ static void qt_set_termios(struct tty_struct *tty,
 	else
 		new_LCR |= SERIAL_ONE_STOPB;
 
-	dbg("%s - 4\n", __func__);
+	dev_dbg(&port->dev, "%s - 4\n", __func__);
 
 	/* Thats the LCR stuff, go ahead and set it */
 	baud = tty_get_baud_rate(tty);
@@ -1240,7 +1218,7 @@ static void qt_set_termios(struct tty_struct *tty,
 		/* pick a default, any default... */
 		baud = 9600;
 
-	dbg("%s - got baud = %d\n", __func__, baud);
+	dev_dbg(&port->dev, "%s - got baud = %d\n", __func__, baud);
 
 	divisor = MAX_BAUD_RATE / baud;
 	remainder = MAX_BAUD_RATE % baud;
@@ -1254,30 +1232,28 @@ static void qt_set_termios(struct tty_struct *tty,
 	status =
 	    qt_setuart(port->serial, index, (unsigned short)divisor, new_LCR);
 	if (status < 0) {
-		dbg(__FILE__ "qt_setuart failed\n");
+		dev_dbg(&port->dev, "qt_setuart failed\n");
 		return;
 	}
 
 	/* Now determine flow control */
 	if (cflag & CRTSCTS) {
-		dbg("%s - Enabling HW flow control port %d\n", __func__,
-		    port->number);
+		dev_dbg(&port->dev, "%s - Enabling HW flow control port %d\n", __func__, port->number);
 
 		/* Enable RTS/CTS flow control */
 		status = BoxSetHW_FlowCtrl(port->serial, index, 1);
 
 		if (status < 0) {
-			dbg(__FILE__ "BoxSetHW_FlowCtrl failed\n");
+			dev_dbg(&port->dev, "BoxSetHW_FlowCtrl failed\n");
 			return;
 		}
 	} else {
 		/* Disable RTS/CTS flow control */
-		dbg("%s - disabling HW flow control port %d\n", __func__,
-		    port->number);
+		dev_dbg(&port->dev, "%s - disabling HW flow control port %d\n", __func__, port->number);
 
 		status = BoxSetHW_FlowCtrl(port->serial, index, 0);
 		if (status < 0) {
-			dbg(__FILE__ "BoxSetHW_FlowCtrl failed\n");
+			dev_dbg(&port->dev, "BoxSetHW_FlowCtrl failed\n");
 			return;
 		}
 
@@ -1292,16 +1268,16 @@ static void qt_set_termios(struct tty_struct *tty,
 		    BoxSetSW_FlowCtrl(port->serial, index, stop_char,
 				      start_char);
 		if (status < 0)
-			dbg(__FILE__ "BoxSetSW_FlowCtrl (enabled) failed\n");
+			dev_dbg(&port->dev, "BoxSetSW_FlowCtrl (enabled) failed\n");
 
 	} else {
 		/* disable SW flow control */
 		status = BoxDisable_SW_FlowCtrl(port->serial, index);
 		if (status < 0)
-			dbg(__FILE__ "BoxSetSW_FlowCtrl (diabling) failed\n");
+			dev_dbg(&port->dev, "BoxSetSW_FlowCtrl (diabling) failed\n");
 
 	}
-	tty->termios->c_cflag &= ~CMSPAR;
+	termios->c_cflag &= ~CMSPAR;
 	/* FIXME: Error cases should be returning the actual bits changed only */
 }
 
@@ -1412,7 +1388,7 @@ static int qt_tiocmget(struct tty_struct *tty)
 	struct usb_serial_port *port = tty->driver_data;
 	struct usb_serial *serial = get_usb_serial(port, __func__);
 	struct quatech_port *qt_port = qt_get_port_private(port);
-	int retval = -ENODEV;
+	int retval;
 
 	if (!serial)
 		return -ENODEV;
@@ -1430,7 +1406,7 @@ static int qt_tiocmset(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	struct usb_serial *serial = get_usb_serial(port, __func__);
 	struct quatech_port *qt_port = qt_get_port_private(port);
-	int retval = -ENODEV;
+	int retval;
 
 	if (!serial)
 		return -ENODEV;
@@ -1458,7 +1434,6 @@ static void qt_throttle(struct tty_struct *tty)
 	qt_port->RxHolding = 1;
 
 	mutex_unlock(&qt_port->lock);
-	return;
 }
 
 static void qt_unthrottle(struct tty_struct *tty)
@@ -1476,10 +1451,10 @@ static void qt_unthrottle(struct tty_struct *tty)
 	mutex_lock(&qt_port->lock);
 
 	if (qt_port->RxHolding == 1) {
-		dbg("%s -qt_port->RxHolding == 1\n", __func__);
+		dev_dbg(&port->dev, "%s -qt_port->RxHolding == 1\n", __func__);
 
 		qt_port->RxHolding = 0;
-		dbg("%s - qt_port->RxHolding = 0\n", __func__);
+		dev_dbg(&port->dev, "%s - qt_port->RxHolding = 0\n", __func__);
 
 		/* if we have a bulk endpoint, start it up */
 		if ((serial->num_bulk_in) && (qt_port->ReadBulkStopped == 1)) {
@@ -1499,19 +1474,12 @@ static void qt_unthrottle(struct tty_struct *tty)
 		}
 	}
 	mutex_unlock(&qt_port->lock);
-	return;
-
 }
 
 static int qt_calc_num_ports(struct usb_serial *serial)
 {
 	int num_ports;
 
-	dbg("numberofendpoints: %d\n",
-	    (int)serial->interface->cur_altsetting->desc.bNumEndpoints);
-	dbg("numberofendpoints: %d\n",
-	    (int)serial->interface->altsetting->desc.bNumEndpoints);
-
 	num_ports =
 	    (serial->interface->cur_altsetting->desc.bNumEndpoints - 1) / 2;
 
@@ -1552,6 +1520,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/staging/silicom/Kconfig b/drivers/staging/silicom/Kconfig
new file mode 100644
index 00000000000..eda2e7d7364
--- /dev/null
+++ b/drivers/staging/silicom/Kconfig
@@ -0,0 +1,46 @@
+#
+# Silicom device configuration
+#
+
+config NET_VENDOR_SILICOM
+	bool "Silicom devices"
+	default y
+	depends on PCI
+	---help---
+	  If you have a network card (Ethernet) belonging to this class,
+	  say Y.
+
+	  Note that the answer to this question does not directly affect
+	  the kernel: saying N will just case the configurator to skip all
+	  the questions regarding Silicom chipsets. If you say Y, you will be asked
+	  for your specific chipset/driver in the following questions.
+
+if NET_VENDOR_SILICOM
+
+config SBYPASS
+	tristate "Silicom BypassCTL library support"
+	depends on PCI && NET
+	depends on m
+	---help---
+	  If you have a network (Ethernet) controller of this type, say Y
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called bypass.
+
+config BPCTL
+	tristate "Silicom BypassCTL net support"
+	depends on PCI && NET
+	depends on m
+	select SBYPASS
+	select NET_CORE
+	select MII
+	---help---
+	  If you have a network (Ethernet) controller of this type, say Y
+	  or M and read the Ethernet-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called bpctl_mod.
+
+
+endif # NET_VENDOR_SILICOM
diff --git a/drivers/staging/silicom/Makefile b/drivers/staging/silicom/Makefile
new file mode 100644
index 00000000000..80e6d12d156
--- /dev/null
+++ b/drivers/staging/silicom/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for the Bypass network device drivers.
+#
+
+obj-$(CONFIG_BPCTL) += bpctl_mod.o
+obj-$(CONFIG_SBYPASS) += bypasslib/
+
+
+bpctl_mod-objs := bp_mod.o  bp_proc.o
diff --git a/drivers/staging/silicom/README b/drivers/staging/silicom/README
new file mode 100644
index 00000000000..ae970b37fdc
--- /dev/null
+++ b/drivers/staging/silicom/README
@@ -0,0 +1,14 @@
+
+Theory of Operation:
+
+The Silicom Bypass Network Interface Cards (NICs) are network cards with paired ports (2 or 4). 
+The pairs either act as a "wire" allowing the network packets to pass or insert the device in 
+between the two ports.  When paired with the on-board hardware watchdog or other failsafe, 
+they provide high availability for the network in the face of software outages or maintenance.
+
+The software requirements are for a kernel level driver that interfaces with the bypass and watchdog,
+as well as for control software. User control can be either the provided standalone executable 
+(/bin/bpctl) or the API exposed by the Silicom library.
+
+
+
diff --git a/drivers/staging/silicom/TODO b/drivers/staging/silicom/TODO
new file mode 100644
index 00000000000..09d07b0ea9c
--- /dev/null
+++ b/drivers/staging/silicom/TODO
@@ -0,0 +1,8 @@
+TODO:
+	- checkpatch.pl cleanups
+	- locking audit
+	- single module with all functionality
+	- userland 
+	- fix monolithic build.
+
+
diff --git a/drivers/staging/silicom/bits.h b/drivers/staging/silicom/bits.h
new file mode 100644
index 00000000000..8c411d0d4ec
--- /dev/null
+++ b/drivers/staging/silicom/bits.h
@@ -0,0 +1,56 @@
+/******************************************************************************/
+/*                                                                            */
+/* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2000 - 2004 Broadcom  */
+/* Corporation.                                                               */
+/* All rights reserved.                                                       */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/* History:                                                                   */
+/*    02/25/00 Hav Khauv        Initial version.                              */
+/******************************************************************************/
+
+#ifndef BITS_H
+#define BITS_H
+
+/******************************************************************************/
+/* Bit Mask definitions */
+/******************************************************************************/
+
+#define BIT_NONE            0x00
+#define BIT_0               0x01
+#define BIT_1               0x02
+#define BIT_2               0x04
+#define BIT_3               0x08
+#define BIT_4               0x10
+#define BIT_5               0x20
+#define BIT_6               0x40
+#define BIT_7               0x80
+#define BIT_8               0x0100
+#define BIT_9               0x0200
+#define BIT_10              0x0400
+#define BIT_11              0x0800
+#define BIT_12              0x1000
+#define BIT_13              0x2000
+#define BIT_14              0x4000
+#define BIT_15              0x8000
+#define BIT_16              0x010000
+#define BIT_17              0x020000
+#define BIT_18              0x040000
+#define BIT_19              0x080000
+#define BIT_20              0x100000
+#define BIT_21              0x200000
+#define BIT_22              0x400000
+#define BIT_23              0x800000
+#define BIT_24              0x01000000
+#define BIT_25              0x02000000
+#define BIT_26              0x04000000
+#define BIT_27              0x08000000
+#define BIT_28              0x10000000
+#define BIT_29              0x20000000
+#define BIT_30              0x40000000
+#define BIT_31              0x80000000
+
+#endif				/* BITS_H */
diff --git a/drivers/staging/silicom/bp_ioctl.h b/drivers/staging/silicom/bp_ioctl.h
new file mode 100644
index 00000000000..57de34a69e8
--- /dev/null
+++ b/drivers/staging/silicom/bp_ioctl.h
@@ -0,0 +1,140 @@
+/******************************************************************************/
+/*                                                                            */
+/* Silicom Bypass Control Utility, Copyright (c) 2005-2007 Silicom            */
+/* All rights reserved.                                                       */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/******************************************************************************/
+
+#ifndef BP_IOCTL_H
+#define BP_IOCTL_H
+
+#define BP_CAP                   0x01	/* BIT_0 */
+#define BP_STATUS_CAP            0x02
+#define BP_STATUS_CHANGE_CAP     0x04
+#define SW_CTL_CAP               0x08
+#define BP_DIS_CAP               0x10
+#define BP_DIS_STATUS_CAP        0x20
+#define STD_NIC_CAP              0x40
+#define BP_PWOFF_ON_CAP          0x80
+#define BP_PWOFF_OFF_CAP         0x0100
+#define BP_PWOFF_CTL_CAP         0x0200
+#define BP_PWUP_ON_CAP           0x0400
+#define BP_PWUP_OFF_CAP          0x0800
+#define BP_PWUP_CTL_CAP          0x1000
+#define WD_CTL_CAP               0x2000
+#define WD_STATUS_CAP            0x4000
+#define WD_TIMEOUT_CAP           0x8000
+#define TX_CTL_CAP               0x10000
+#define TX_STATUS_CAP            0x20000
+#define TAP_CAP                  0x40000
+#define TAP_STATUS_CAP           0x80000
+#define TAP_STATUS_CHANGE_CAP    0x100000
+#define TAP_DIS_CAP              0x200000
+#define TAP_DIS_STATUS_CAP       0x400000
+#define TAP_PWUP_ON_CAP          0x800000
+#define TAP_PWUP_OFF_CAP         0x1000000
+#define TAP_PWUP_CTL_CAP         0x2000000
+#define NIC_CAP_NEG              0x4000000
+#define TPL_CAP                  0x8000000
+#define DISC_CAP                 0x10000000
+#define DISC_DIS_CAP             0x20000000
+#define DISC_PWUP_CTL_CAP        0x40000000
+
+#define TPL2_CAP_EX              0x01
+#define DISC_PORT_CAP_EX         0x02
+
+#define WD_MIN_TIME_MASK(val)      (val & 0xf)
+#define WD_STEP_COUNT_MASK(val)    ((val & 0xf) << 5)
+#define WDT_STEP_TIME              0x10	/* BIT_4 */
+
+#define WD_MIN_TIME_GET(desc)   (desc & 0xf)
+#define WD_STEP_COUNT_GET(desc) ((desc>>5) & 0xf)
+
+typedef enum {
+	IF_SCAN,
+	GET_DEV_NUM,
+	IS_BYPASS,
+	GET_BYPASS_SLAVE,
+	GET_BYPASS_CAPS,
+	GET_WD_SET_CAPS,
+	SET_BYPASS,
+	GET_BYPASS,
+	GET_BYPASS_CHANGE,
+	SET_BYPASS_WD,
+	GET_BYPASS_WD,
+	GET_WD_EXPIRE_TIME,
+	RESET_BYPASS_WD_TIMER,
+	SET_DIS_BYPASS,
+	GET_DIS_BYPASS,
+	SET_BYPASS_PWOFF,
+	GET_BYPASS_PWOFF,
+	SET_BYPASS_PWUP,
+	GET_BYPASS_PWUP,
+	SET_STD_NIC,
+	GET_STD_NIC,
+	SET_TX,
+	GET_TX,
+	SET_TAP,
+	GET_TAP,
+	GET_TAP_CHANGE,
+	SET_DIS_TAP,
+	GET_DIS_TAP,
+	SET_TAP_PWUP,
+	GET_TAP_PWUP,
+	SET_WD_EXP_MODE,
+	GET_WD_EXP_MODE,
+	SET_WD_AUTORESET,
+	GET_WD_AUTORESET,
+	SET_TPL,
+	GET_TPL,
+	SET_DISC,
+	GET_DISC,
+	GET_DISC_CHANGE,
+	SET_DIS_DISC,
+	GET_DIS_DISC,
+	SET_DISC_PWUP,
+	GET_DISC_PWUP,
+	GET_BYPASS_INFO = 100,
+	GET_BP_WAIT_AT_PWUP,
+	SET_BP_WAIT_AT_PWUP,
+	GET_BP_HW_RESET,
+	SET_BP_HW_RESET,
+	SET_DISC_PORT,
+	GET_DISC_PORT,
+	SET_DISC_PORT_PWUP,
+	GET_DISC_PORT_PWUP,
+	SET_BP_FORCE_LINK,
+	GET_BP_FORCE_LINK,
+#ifdef BP_SELF_TEST
+	SET_BP_SELF_TEST = 200,
+	GET_BP_SELF_TEST,
+#endif
+
+} CMND_TYPE_SD;
+
+/*
+* The major device number. We can't rely on dynamic
+* registration any more, because ioctls need to know
+* it.
+*/
+
+#define MAGIC_NUM 'J'
+
+/* for passing single values */
+struct bpctl_cmd {
+	int status;
+	int data[8];
+	int in_param[8];
+	int out_param[8];
+};
+
+#define IOCTL_TX_MSG(cmd) _IOWR(MAGIC_NUM, cmd, struct bpctl_cmd)
+
+#define DEVICE_NAME "bpctl"
+
+#endif
diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c
new file mode 100644
index 00000000000..3cfd0516adf
--- /dev/null
+++ b/drivers/staging/silicom/bp_mod.c
@@ -0,0 +1,8931 @@
+/******************************************************************************/
+/*                                                                            */
+/* Bypass Control utility, Copyright (c) 2005-20011 Silicom                   */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*  Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.          */
+/*                                                                            */
+/*                                                                            */
+/******************************************************************************/
+#include <linux/version.h>
+
+#include <linux/kernel.h>	/* We're doing kernel work */
+#include <linux/module.h>	/* Specifically, a module */
+#include <linux/fs.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/rcupdate.h>
+#include <linux/etherdevice.h>
+
+#include <linux/uaccess.h>	/* for get_user and put_user */
+#include <linux/sched.h>
+#include <linux/ethtool.h>
+#include <linux/proc_fs.h>
+
+#include "bp_ioctl.h"
+#include "bp_mod.h"
+#include "bypass.h"
+#include "libbp_sd.h"
+
+#define SUCCESS 0
+#define BP_MOD_VER  "9.0.4"
+#define BP_MOD_DESCR "Silicom Bypass-SD Control driver"
+#define BP_SYNC_FLAG 1
+
+static int Device_Open = 0;
+static int major_num = 0;
+
+MODULE_AUTHOR("Anna Lukin, annal@silicom.co.il");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(BP_MOD_DESCR);
+MODULE_VERSION(BP_MOD_VER);
+spinlock_t bpvm_lock;
+
+#define lock_bpctl() 					\
+if (down_interruptible(&bpctl_sema)) {			\
+	return -ERESTARTSYS;				\
+}							\
+
+#define unlock_bpctl() 					\
+	up(&bpctl_sema);
+
+/* Media Types */
+typedef enum {
+	bp_copper = 0,
+	bp_fiber,
+	bp_cx4,
+	bp_none,
+} bp_media_type;
+
+struct pfs_unit_sd {
+	struct proc_dir_entry *proc_entry;
+	char proc_name[32];
+};
+
+struct bypass_pfs_sd {
+	char dir_name[32];
+	struct proc_dir_entry *bypass_entry;
+	struct pfs_unit_sd bypass_info;
+	struct pfs_unit_sd bypass_slave;
+	struct pfs_unit_sd bypass_caps;
+	struct pfs_unit_sd wd_set_caps;
+	struct pfs_unit_sd bypass;
+	struct pfs_unit_sd bypass_change;
+	struct pfs_unit_sd bypass_wd;
+	struct pfs_unit_sd wd_expire_time;
+	struct pfs_unit_sd reset_bypass_wd;
+	struct pfs_unit_sd dis_bypass;
+	struct pfs_unit_sd bypass_pwup;
+	struct pfs_unit_sd bypass_pwoff;
+	struct pfs_unit_sd std_nic;
+	struct pfs_unit_sd tap;
+	struct pfs_unit_sd dis_tap;
+	struct pfs_unit_sd tap_pwup;
+	struct pfs_unit_sd tap_change;
+	struct pfs_unit_sd wd_exp_mode;
+	struct pfs_unit_sd wd_autoreset;
+	struct pfs_unit_sd tpl;
+
+};
+
+typedef struct _bpctl_dev {
+	char *name;
+	char *desc;
+	struct pci_dev *pdev;	/* PCI device */
+	struct net_device *ndev;	/* net device */
+	unsigned long mem_map;
+	uint8_t bus;
+	uint8_t slot;
+	uint8_t func;
+	u_int32_t device;
+	u_int32_t vendor;
+	u_int32_t subvendor;
+	u_int32_t subdevice;
+	int ifindex;
+	uint32_t bp_caps;
+	uint32_t bp_caps_ex;
+	uint8_t bp_fw_ver;
+	int bp_ext_ver;
+	int wdt_status;
+	unsigned long bypass_wdt_on_time;
+	uint32_t bypass_timer_interval;
+	struct timer_list bp_timer;
+	uint32_t reset_time;
+	uint8_t bp_status_un;
+	atomic_t wdt_busy;
+	bp_media_type media_type;
+	int bp_tpl_flag;
+	struct timer_list bp_tpl_timer;
+	spinlock_t bypass_wr_lock;
+	int bp_10g;
+	int bp_10gb;
+	int bp_fiber5;
+	int bp_10g9;
+	int bp_i80;
+	int bp_540;
+	int (*hard_start_xmit_save) (struct sk_buff *skb,
+				     struct net_device *dev);
+	const struct net_device_ops *old_ops;
+	struct net_device_ops new_ops;
+	int bp_self_test_flag;
+	char *bp_tx_data;
+	struct bypass_pfs_sd bypass_pfs_set;
+
+} bpctl_dev_t;
+
+static bpctl_dev_t *bpctl_dev_arr;
+
+static struct semaphore bpctl_sema;
+static int device_num = 0;
+
+static int get_dev_idx(int ifindex);
+static bpctl_dev_t *get_master_port_fn(bpctl_dev_t *pbpctl_dev);
+static int disc_status(bpctl_dev_t *pbpctl_dev);
+static int bypass_status(bpctl_dev_t *pbpctl_dev);
+static int wdt_timer(bpctl_dev_t *pbpctl_dev, int *time_left);
+static bpctl_dev_t *get_status_port_fn(bpctl_dev_t *pbpctl_dev);
+static void if_scan_init(void);
+
+int bypass_proc_create_dev_sd(bpctl_dev_t *pbp_device_block);
+int bypass_proc_remove_dev_sd(bpctl_dev_t *pbp_device_block);
+int bp_proc_create(void);
+
+int is_bypass_fn(bpctl_dev_t *pbpctl_dev);
+int get_dev_idx_bsf(int bus, int slot, int func);
+
+static unsigned long str_to_hex(char *p);
+static int bp_device_event(struct notifier_block *unused,
+			   unsigned long event, void *ptr)
+{
+	struct net_device *dev = ptr;
+	static bpctl_dev_t *pbpctl_dev = NULL, *pbpctl_dev_m = NULL;
+	int dev_num = 0, ret = 0, ret_d = 0, time_left = 0;
+	/* printk("BP_PROC_SUPPORT event =%d %s %d\n", event,dev->name, dev->ifindex ); */
+	/* return NOTIFY_DONE; */
+	if (!dev)
+		return NOTIFY_DONE;
+	if (event == NETDEV_REGISTER) {
+		{
+			struct ethtool_drvinfo drvinfo;
+			char cbuf[32];
+			char *buf = NULL;
+			char res[10];
+			int i = 0, ifindex, idx_dev = 0;
+			int bus = 0, slot = 0, func = 0;
+			ifindex = dev->ifindex;
+
+			memset(res, 0, 10);
+			memset(&drvinfo, 0, sizeof(struct ethtool_drvinfo));
+
+			if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
+				memset(&drvinfo, 0, sizeof(drvinfo));
+				dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
+			} else
+				return NOTIFY_DONE;
+			if (!drvinfo.bus_info)
+				return NOTIFY_DONE;
+			if (!strcmp(drvinfo.bus_info, "N/A"))
+				return NOTIFY_DONE;
+			memcpy(&cbuf, drvinfo.bus_info, 32);
+			buf = &cbuf[0];
+
+			while (*buf++ != ':') ;
+			for (i = 0; i < 10; i++, buf++) {
+				if (*buf == ':')
+					break;
+				res[i] = *buf;
+
+			}
+			buf++;
+			bus = str_to_hex(res);
+			memset(res, 0, 10);
+
+			for (i = 0; i < 10; i++, buf++) {
+				if (*buf == '.')
+					break;
+				res[i] = *buf;
+
+			}
+			buf++;
+			slot = str_to_hex(res);
+			func = str_to_hex(buf);
+			idx_dev = get_dev_idx_bsf(bus, slot, func);
+
+			if (idx_dev != -1) {
+
+				bpctl_dev_arr[idx_dev].ifindex = ifindex;
+				bpctl_dev_arr[idx_dev].ndev = dev;
+
+				bypass_proc_remove_dev_sd(&bpctl_dev_arr
+							  [idx_dev]);
+				bypass_proc_create_dev_sd(&bpctl_dev_arr
+							  [idx_dev]);
+
+			}
+
+		}
+		return NOTIFY_DONE;
+
+	}
+	if (event == NETDEV_UNREGISTER) {
+		int idx_dev = 0;
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if (bpctl_dev_arr[idx_dev].ndev == dev) {
+				bypass_proc_remove_dev_sd(&bpctl_dev_arr
+							  [idx_dev]);
+				bpctl_dev_arr[idx_dev].ndev = NULL;
+
+				return NOTIFY_DONE;
+
+			}
+
+		}
+		return NOTIFY_DONE;
+	}
+	if (event == NETDEV_CHANGENAME) {
+		int idx_dev = 0;
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if (bpctl_dev_arr[idx_dev].ndev == dev) {
+				bypass_proc_remove_dev_sd(&bpctl_dev_arr
+							  [idx_dev]);
+				bypass_proc_create_dev_sd(&bpctl_dev_arr
+							  [idx_dev]);
+
+				return NOTIFY_DONE;
+
+			}
+
+		}
+		return NOTIFY_DONE;
+
+	}
+
+	switch (event) {
+
+	case NETDEV_CHANGE:{
+			if (netif_carrier_ok(dev))
+				return NOTIFY_DONE;
+
+			if (((dev_num = get_dev_idx(dev->ifindex)) == -1) ||
+			    (!(pbpctl_dev = &bpctl_dev_arr[dev_num])))
+				return NOTIFY_DONE;
+
+			if ((is_bypass_fn(pbpctl_dev)) == 1)
+				pbpctl_dev_m = pbpctl_dev;
+			else
+				pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+			if (!pbpctl_dev_m)
+				return NOTIFY_DONE;
+			ret = bypass_status(pbpctl_dev_m);
+			if (ret == 1)
+				printk("bpmod: %s is in the Bypass mode now",
+				       dev->name);
+			ret_d = disc_status(pbpctl_dev_m);
+			if (ret_d == 1)
+				printk
+				    ("bpmod: %s is in the Disconnect mode now",
+				     dev->name);
+			if (ret || ret_d) {
+				wdt_timer(pbpctl_dev_m, &time_left);
+				if (time_left == -1)
+					printk("; WDT has expired");
+				printk(".\n");
+
+			}
+			return NOTIFY_DONE;
+
+		}
+
+	default:
+		return NOTIFY_DONE;
+
+	}
+	return NOTIFY_DONE;
+
+}
+
+static struct notifier_block bp_notifier_block = {
+	.notifier_call = bp_device_event,
+};
+
+static int device_open(struct inode *inode, struct file *file)
+{
+#ifdef DEBUG
+	printk("device_open(%p)\n", file);
+#endif
+	Device_Open++;
+/*
+* Initialize the message
+*/
+	return SUCCESS;
+}
+
+static int device_release(struct inode *inode, struct file *file)
+{
+#ifdef DEBUG
+	printk("device_release(%p,%p)\n", inode, file);
+#endif
+	Device_Open--;
+	return SUCCESS;
+}
+
+int is_bypass_fn(bpctl_dev_t *pbpctl_dev);
+int wdt_time_left(bpctl_dev_t *pbpctl_dev);
+
+static void write_pulse(bpctl_dev_t *pbpctl_dev,
+			unsigned int ctrl_ext,
+			unsigned char value, unsigned char len)
+{
+	unsigned char ctrl_val = 0;
+	unsigned int i = len;
+	unsigned int ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_c = NULL;
+
+	if (pbpctl_dev->bp_i80)
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	if (pbpctl_dev->bp_540)
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+
+	if (pbpctl_dev->bp_10g9) {
+		if (!(pbpctl_dev_c = get_status_port_fn(pbpctl_dev)))
+			return;
+		ctrl = BP10G_READ_REG(pbpctl_dev_c, ESDP);
+	}
+
+	while (i--) {
+		ctrl_val = (value >> i) & 0x1;
+		if (ctrl_val) {
+			if (pbpctl_dev->bp_10g9) {
+
+				/* To start management : MCLK 1, MDIO 1, output */
+				/* DATA 1 CLK 1 */
+				/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext|BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9)); */
+				BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+						ctrl_ext |
+						BP10G_MDIO_DATA_OUT9);
+				BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+						(ctrl | BP10G_MCLK_DATA_OUT9 |
+						 BP10G_MCLK_DIR_OUT9));
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, (ctrl_ext |
+								      BPCTLI_CTRL_EXT_MCLK_DIR5
+								      |
+								      BPCTLI_CTRL_EXT_MDIO_DIR5
+								      |
+								      BPCTLI_CTRL_EXT_MDIO_DATA5
+								      |
+								      BPCTLI_CTRL_EXT_MCLK_DATA5));
+
+			} else if (pbpctl_dev->bp_i80) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, (ctrl_ext |
+								      BPCTLI_CTRL_EXT_MDIO_DIR80
+								      |
+								      BPCTLI_CTRL_EXT_MDIO_DATA80));
+
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, (ctrl |
+									  BPCTLI_CTRL_EXT_MCLK_DIR80
+									  |
+									  BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+			} else if (pbpctl_dev->bp_540) {
+				BP10G_WRITE_REG(pbpctl_dev, ESDP, (ctrl |
+								   BP540_MDIO_DIR
+								   |
+								   BP540_MDIO_DATA
+								   |
+								   BP540_MCLK_DIR
+								   |
+								   BP540_MCLK_DATA));
+
+			} else if (pbpctl_dev->bp_10gb) {
+				BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+						 (ctrl_ext | BP10GB_MDIO_SET |
+						  BP10GB_MCLK_SET) &
+						 ~(BP10GB_MCLK_DIR |
+						   BP10GB_MDIO_DIR |
+						   BP10GB_MDIO_CLR |
+						   BP10GB_MCLK_CLR));
+
+			} else if (!pbpctl_dev->bp_10g)
+				/* To start management : MCLK 1, MDIO 1, output */
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   (ctrl_ext |
+						    BPCTLI_CTRL_EXT_MCLK_DIR |
+						    BPCTLI_CTRL_EXT_MDIO_DIR |
+						    BPCTLI_CTRL_EXT_MDIO_DATA |
+						    BPCTLI_CTRL_EXT_MCLK_DATA));
+			else {
+
+				/* To start management : MCLK 1, MDIO 1, output*/
+				BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+						(ctrl_ext | BP10G_MCLK_DATA_OUT
+						 | BP10G_MDIO_DATA_OUT));
+
+			}
+
+			usec_delay(PULSE_TIME);
+			if (pbpctl_dev->bp_10g9) {
+
+				/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, ((ctrl_ext|BP10G_MDIO_DATA_OUT9)&~(BP10G_MCLK_DATA_OUT9))); */
+				/* DATA 1 CLK 0 */
+				BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+						ctrl_ext |
+						BP10G_MDIO_DATA_OUT9);
+				BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+						(ctrl | BP10G_MCLK_DIR_OUT9) &
+						~BP10G_MCLK_DATA_OUT9);
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MCLK_DIR5 |
+						     BPCTLI_CTRL_EXT_MDIO_DIR5 |
+						     BPCTLI_CTRL_EXT_MDIO_DATA5)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MCLK_DATA5)));
+
+			} else if (pbpctl_dev->bp_i80) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, (ctrl_ext |
+								      BPCTLI_CTRL_EXT_MDIO_DIR80
+								      |
+								      BPCTLI_CTRL_EXT_MDIO_DATA80));
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   ((ctrl |
+						     BPCTLI_CTRL_EXT_MCLK_DIR80)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MCLK_DATA80)));
+
+			} else if (pbpctl_dev->bp_540) {
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						(ctrl | BP540_MDIO_DIR |
+						 BP540_MDIO_DATA |
+						 BP540_MCLK_DIR) &
+						~(BP540_MCLK_DATA));
+
+			} else if (pbpctl_dev->bp_10gb) {
+
+				BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+						 (ctrl_ext | BP10GB_MDIO_SET |
+						  BP10GB_MCLK_CLR) &
+						 ~(BP10GB_MCLK_DIR |
+						   BP10GB_MDIO_DIR |
+						   BP10GB_MDIO_CLR |
+						   BP10GB_MCLK_SET));
+
+			} else if (!pbpctl_dev->bp_10g)
+
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MCLK_DIR |
+						     BPCTLI_CTRL_EXT_MDIO_DIR |
+						     BPCTLI_CTRL_EXT_MDIO_DATA)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MCLK_DATA)));
+			else {
+
+				BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+						((ctrl_ext |
+						  BP10G_MDIO_DATA_OUT) &
+						 ~(BP10G_MCLK_DATA_OUT)));
+			}
+
+			usec_delay(PULSE_TIME);
+
+		} else {
+			if (pbpctl_dev->bp_10g9) {
+				/* DATA 0 CLK 1 */
+				/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, ((ctrl_ext|BP10G_MCLK_DATA_OUT9)&~BP10G_MDIO_DATA_OUT9)); */
+				BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+						(ctrl_ext &
+						 ~BP10G_MDIO_DATA_OUT9));
+				BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+						(ctrl | BP10G_MCLK_DATA_OUT9 |
+						 BP10G_MCLK_DIR_OUT9));
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MCLK_DIR5 |
+						     BPCTLI_CTRL_EXT_MDIO_DIR5 |
+						     BPCTLI_CTRL_EXT_MCLK_DATA5)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MDIO_DATA5)));
+
+			} else if (pbpctl_dev->bp_i80) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MDIO_DIR80)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MDIO_DATA80)));
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   (ctrl |
+						    BPCTLI_CTRL_EXT_MCLK_DIR80 |
+						    BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+			} else if (pbpctl_dev->bp_540) {
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP540_MCLK_DIR |
+						  BP540_MCLK_DATA |
+						  BP540_MDIO_DIR) &
+						 ~(BP540_MDIO_DATA)));
+
+			} else if (pbpctl_dev->bp_10gb) {
+				BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+						 (ctrl_ext | BP10GB_MDIO_CLR |
+						  BP10GB_MCLK_SET) &
+						 ~(BP10GB_MCLK_DIR |
+						   BP10GB_MDIO_DIR |
+						   BP10GB_MDIO_SET |
+						   BP10GB_MCLK_CLR));
+
+			} else if (!pbpctl_dev->bp_10g)
+
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MCLK_DIR |
+						     BPCTLI_CTRL_EXT_MDIO_DIR |
+						     BPCTLI_CTRL_EXT_MCLK_DATA)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MDIO_DATA)));
+			else {
+
+				BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+						((ctrl_ext |
+						  BP10G_MCLK_DATA_OUT) &
+						 ~BP10G_MDIO_DATA_OUT));
+
+			}
+			usec_delay(PULSE_TIME);
+			if (pbpctl_dev->bp_10g9) {
+				/* DATA 0 CLK 0 */
+				/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+				BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+						(ctrl_ext &
+						 ~BP10G_MDIO_DATA_OUT9));
+				BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+						((ctrl | BP10G_MCLK_DIR_OUT9) &
+						 ~(BP10G_MCLK_DATA_OUT9)));
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MCLK_DIR5 |
+						     BPCTLI_CTRL_EXT_MDIO_DIR5)
+						    &
+						    ~(BPCTLI_CTRL_EXT_MCLK_DATA5
+						      |
+						      BPCTLI_CTRL_EXT_MDIO_DATA5)));
+
+			} else if (pbpctl_dev->bp_i80) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MDIO_DIR80)
+						    &
+						    ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   ((ctrl |
+						     BPCTLI_CTRL_EXT_MCLK_DIR80)
+						    &
+						    ~
+						    (BPCTLI_CTRL_EXT_MCLK_DATA80)));
+
+			} else if (pbpctl_dev->bp_540) {
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP540_MCLK_DIR |
+						  BP540_MDIO_DIR) &
+						 ~(BP540_MDIO_DATA |
+						   BP540_MCLK_DATA)));
+			} else if (pbpctl_dev->bp_10gb) {
+
+				BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+						 (ctrl_ext | BP10GB_MDIO_CLR |
+						  BP10GB_MCLK_CLR) &
+						 ~(BP10GB_MCLK_DIR |
+						   BP10GB_MDIO_DIR |
+						   BP10GB_MDIO_SET |
+						   BP10GB_MCLK_SET));
+
+			} else if (!pbpctl_dev->bp_10g)
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   ((ctrl_ext |
+						     BPCTLI_CTRL_EXT_MCLK_DIR |
+						     BPCTLI_CTRL_EXT_MDIO_DIR) &
+						    ~(BPCTLI_CTRL_EXT_MCLK_DATA
+						      |
+						      BPCTLI_CTRL_EXT_MDIO_DATA)));
+			else {
+
+				BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+						(ctrl_ext &
+						 ~(BP10G_MCLK_DATA_OUT |
+						   BP10G_MDIO_DATA_OUT)));
+			}
+
+			usec_delay(PULSE_TIME);
+		}
+
+	}
+}
+
+static int read_pulse(bpctl_dev_t *pbpctl_dev, unsigned int ctrl_ext,
+		      unsigned char len)
+{
+	unsigned char ctrl_val = 0;
+	unsigned int i = len;
+	unsigned int ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_c = NULL;
+
+	if (pbpctl_dev->bp_i80)
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	if (pbpctl_dev->bp_540)
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+	if (pbpctl_dev->bp_10g9) {
+		if (!(pbpctl_dev_c = get_status_port_fn(pbpctl_dev)))
+			return -1;
+		ctrl = BP10G_READ_REG(pbpctl_dev_c, ESDP);
+	}
+
+
+	while (i--) {
+		if (pbpctl_dev->bp_10g9) {
+			/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, ((ctrl_ext|BP10G_MDIO_DATA_OUT9)&~BP10G_MCLK_DATA_OUT9)); */
+			/* DATA ? CLK 0 */
+			BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+					((ctrl | BP10G_MCLK_DIR_OUT9) &
+					 ~(BP10G_MCLK_DATA_OUT9)));
+
+		} else if (pbpctl_dev->bp_fiber5) {
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+							       BPCTLI_CTRL_EXT_MCLK_DIR5)
+							      &
+							      ~
+							      (BPCTLI_CTRL_EXT_MDIO_DIR5
+							       |
+							       BPCTLI_CTRL_EXT_MCLK_DATA5)));
+
+		} else if (pbpctl_dev->bp_i80) {
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+					   (ctrl_ext &
+					    ~BPCTLI_CTRL_EXT_MDIO_DIR80));
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+					   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80)
+					    & ~(BPCTLI_CTRL_EXT_MCLK_DATA80)));
+
+		} else if (pbpctl_dev->bp_540) {
+			BP10G_WRITE_REG(pbpctl_dev, ESDP,
+					((ctrl | BP540_MCLK_DIR) &
+					 ~(BP540_MDIO_DIR | BP540_MCLK_DATA)));
+
+		} else if (pbpctl_dev->bp_10gb) {
+
+			BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+					 (ctrl_ext | BP10GB_MDIO_DIR |
+					  BP10GB_MCLK_CLR) & ~(BP10GB_MCLK_DIR |
+							       BP10GB_MDIO_CLR |
+							       BP10GB_MDIO_SET |
+							       BP10GB_MCLK_SET));
+
+		} else if (!pbpctl_dev->bp_10g)
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+								   BPCTLI_CTRL_EXT_MCLK_DIR)
+								  &
+								  ~
+								  (BPCTLI_CTRL_EXT_MDIO_DIR
+								   |
+								   BPCTLI_CTRL_EXT_MCLK_DATA)));
+		else {
+
+			BP10G_WRITE_REG(pbpctl_dev, EODSDP, ((ctrl_ext | BP10G_MDIO_DATA_OUT) & ~BP10G_MCLK_DATA_OUT));	/* ? */
+			/*    printk("0x28=0x%x\n",BP10G_READ_REG(pbpctl_dev,EODSDP);); */
+
+		}
+
+		usec_delay(PULSE_TIME);
+		if (pbpctl_dev->bp_10g9) {
+			/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext|BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9)); */
+			/* DATA ? CLK 1 */
+			BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+					(ctrl | BP10G_MCLK_DATA_OUT9 |
+					 BP10G_MCLK_DIR_OUT9));
+
+		} else if (pbpctl_dev->bp_fiber5) {
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+							       BPCTLI_CTRL_EXT_MCLK_DIR5
+							       |
+							       BPCTLI_CTRL_EXT_MCLK_DATA5)
+							      &
+							      ~
+							      (BPCTLI_CTRL_EXT_MDIO_DIR5)));
+
+		} else if (pbpctl_dev->bp_i80) {
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+					   (ctrl_ext &
+					    ~(BPCTLI_CTRL_EXT_MDIO_DIR80)));
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+					   (ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80 |
+					    BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+		} else if (pbpctl_dev->bp_540) {
+			BP10G_WRITE_REG(pbpctl_dev, ESDP,
+					((ctrl | BP540_MCLK_DIR |
+					  BP540_MCLK_DATA) &
+					 ~(BP540_MDIO_DIR)));
+
+		} else if (pbpctl_dev->bp_10gb) {
+			BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+					 (ctrl_ext | BP10GB_MDIO_DIR |
+					  BP10GB_MCLK_SET) & ~(BP10GB_MCLK_DIR |
+							       BP10GB_MDIO_CLR |
+							       BP10GB_MDIO_SET |
+							       BP10GB_MCLK_CLR));
+
+		} else if (!pbpctl_dev->bp_10g)
+			BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+								   BPCTLI_CTRL_EXT_MCLK_DIR
+								   |
+								   BPCTLI_CTRL_EXT_MCLK_DATA)
+								  &
+								  ~
+								  (BPCTLI_CTRL_EXT_MDIO_DIR)));
+		else {
+
+			BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+					(ctrl_ext | BP10G_MCLK_DATA_OUT |
+					 BP10G_MDIO_DATA_OUT));
+
+		}
+		if (pbpctl_dev->bp_10g9) {
+			ctrl_ext = BP10G_READ_REG(pbpctl_dev, I2CCTL);
+
+		} else if ((pbpctl_dev->bp_fiber5) || (pbpctl_dev->bp_i80)) {
+			ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		} else if (pbpctl_dev->bp_540) {
+			ctrl_ext = BP10G_READ_REG(pbpctl_dev, ESDP);
+		} else if (pbpctl_dev->bp_10gb)
+			ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+
+		else if (!pbpctl_dev->bp_10g)
+			ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		else
+			ctrl_ext = BP10G_READ_REG(pbpctl_dev, EODSDP);
+
+		usec_delay(PULSE_TIME);
+		if (pbpctl_dev->bp_10g9) {
+			if (ctrl_ext & BP10G_MDIO_DATA_IN9)
+				ctrl_val |= 1 << i;
+
+		} else if (pbpctl_dev->bp_fiber5) {
+			if (ctrl_ext & BPCTLI_CTRL_EXT_MDIO_DATA5)
+				ctrl_val |= 1 << i;
+		} else if (pbpctl_dev->bp_i80) {
+			if (ctrl_ext & BPCTLI_CTRL_EXT_MDIO_DATA80)
+				ctrl_val |= 1 << i;
+		} else if (pbpctl_dev->bp_540) {
+			if (ctrl_ext & BP540_MDIO_DATA)
+				ctrl_val |= 1 << i;
+		} else if (pbpctl_dev->bp_10gb) {
+			if (ctrl_ext & BP10GB_MDIO_DATA)
+				ctrl_val |= 1 << i;
+
+		} else if (!pbpctl_dev->bp_10g) {
+
+			if (ctrl_ext & BPCTLI_CTRL_EXT_MDIO_DATA)
+				ctrl_val |= 1 << i;
+		} else {
+
+			if (ctrl_ext & BP10G_MDIO_DATA_IN)
+				ctrl_val |= 1 << i;
+		}
+
+	}
+
+	return ctrl_val;
+}
+
+static void write_reg(bpctl_dev_t *pbpctl_dev, unsigned char value,
+		      unsigned char addr)
+{
+	uint32_t ctrl_ext = 0, ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_c = NULL;
+	unsigned long flags;
+	if (pbpctl_dev->bp_10g9) {
+		if (!(pbpctl_dev_c = get_status_port_fn(pbpctl_dev)))
+			return;
+	}
+	if ((pbpctl_dev->wdt_status == WDT_STATUS_EN) &&
+	    (pbpctl_dev->bp_ext_ver < PXG4BPFI_VER))
+		wdt_time_left(pbpctl_dev);
+
+#ifdef BP_SYNC_FLAG
+	spin_lock_irqsave(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+	atomic_set(&pbpctl_dev->wdt_busy, 1);
+#endif
+	if (pbpctl_dev->bp_10g9) {
+
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, I2CCTL);
+		ctrl = BP10G_READ_REG(pbpctl_dev_c, ESDP);
+		/* DATA 0 CLK 0 */
+		/* BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				((ctrl | BP10G_MCLK_DIR_OUT9) &
+				 ~(BP10G_MCLK_DATA_OUT9)));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DATA5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80) &
+				    ~BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+	} else if (pbpctl_dev->bp_540) {
+		ctrl = ctrl_ext = BP10G_READ_REG(pbpctl_dev, ESDP);
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl |
+						    BP540_MDIO_DIR |
+						    BP540_MCLK_DIR) &
+						   ~(BP540_MDIO_DATA |
+						     BP540_MCLK_DATA)));
+
+	} else if (pbpctl_dev->bp_10gb) {
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_CLR)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_SET));
+
+	} else if (!pbpctl_dev->bp_10g) {
+
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)));
+	} else {
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, EODSDP);
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext &
+				 ~(BP10G_MCLK_DATA_OUT | BP10G_MDIO_DATA_OUT)));
+	}
+	usec_delay(CMND_INTERVAL);
+
+	/*send sync cmd */
+	write_pulse(pbpctl_dev, ctrl_ext, SYNC_CMD_VAL, SYNC_CMD_LEN);
+	/*send wr cmd */
+	write_pulse(pbpctl_dev, ctrl_ext, WR_CMD_VAL, WR_CMD_LEN);
+	write_pulse(pbpctl_dev, ctrl_ext, addr, ADDR_CMD_LEN);
+
+	/*write data */
+	write_pulse(pbpctl_dev, ctrl_ext, value, WR_DATA_LEN);
+	if (pbpctl_dev->bp_10g9) {
+		/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+		/* DATA 0 CLK 0 */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				((ctrl | BP10G_MCLK_DIR_OUT9) &
+				 ~(BP10G_MCLK_DATA_OUT9)));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DATA5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80) &
+				    ~BPCTLI_CTRL_EXT_MCLK_DATA80));
+	} else if (pbpctl_dev->bp_540) {
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl |
+						    BP540_MDIO_DIR |
+						    BP540_MCLK_DIR) &
+						   ~(BP540_MDIO_DATA |
+						     BP540_MCLK_DATA)));
+	} else if (pbpctl_dev->bp_10gb) {
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_CLR)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_SET));
+
+	} else if (!pbpctl_dev->bp_10g)
+
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)));
+	else {
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext &
+				 ~(BP10G_MCLK_DATA_OUT | BP10G_MDIO_DATA_OUT)));
+
+	}
+
+	usec_delay(CMND_INTERVAL * 4);
+
+	if ((pbpctl_dev->wdt_status == WDT_STATUS_EN) &&
+	    (pbpctl_dev->bp_ext_ver < PXG4BPFI_VER) && (addr == CMND_REG_ADDR))
+		pbpctl_dev->bypass_wdt_on_time = jiffies;
+#ifdef BP_SYNC_FLAG
+	spin_unlock_irqrestore(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+	atomic_set(&pbpctl_dev->wdt_busy, 0);
+#endif
+
+}
+
+static void write_data(bpctl_dev_t *pbpctl_dev, unsigned char value)
+{
+	write_reg(pbpctl_dev, value, CMND_REG_ADDR);
+}
+
+static int read_reg(bpctl_dev_t *pbpctl_dev, unsigned char addr)
+{
+	uint32_t ctrl_ext = 0, ctrl = 0, ctrl_value = 0;
+	bpctl_dev_t *pbpctl_dev_c = NULL;
+
+#ifdef BP_SYNC_FLAG
+	unsigned long flags;
+	spin_lock_irqsave(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+	atomic_set(&pbpctl_dev->wdt_busy, 1);
+#endif
+	if (pbpctl_dev->bp_10g9) {
+		if (!(pbpctl_dev_c = get_status_port_fn(pbpctl_dev)))
+			return -1;
+	}
+
+	if (pbpctl_dev->bp_10g9) {
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, I2CCTL);
+		ctrl = BP10G_READ_REG(pbpctl_dev_c, ESDP);
+
+		/* BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+		/* DATA 0 CLK 0 */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				((ctrl | BP10G_MCLK_DIR_OUT9) &
+				 ~(BP10G_MCLK_DATA_OUT9)));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DATA5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80) &
+				    ~BPCTLI_CTRL_EXT_MCLK_DATA80));
+	} else if (pbpctl_dev->bp_540) {
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, ESDP);
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl | BP540_MCLK_DIR |
+						    BP540_MDIO_DIR) &
+						   ~(BP540_MDIO_DATA |
+						     BP540_MCLK_DATA)));
+	} else if (pbpctl_dev->bp_10gb) {
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_CLR)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_SET));
+#if 0
+
+		/*BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO, (ctrl_ext | BP10GB_MCLK_DIR | BP10GB_MDIO_DIR|
+		   BP10GB_MCLK_CLR|BP10GB_MDIO_CLR));
+		   ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+		   printk("1reg=%x\n", ctrl_ext); */
+
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO, ((ctrl_ext |
+							      BP10GB_MCLK_SET |
+							      BP10GB_MDIO_CLR))
+				 & ~(BP10GB_MCLK_CLR | BP10GB_MDIO_SET |
+				     BP10GB_MCLK_DIR | BP10GB_MDIO_DIR));
+
+		/*   bnx2x_set_spio(pbpctl_dev, 5, MISC_REGISTERS_SPIO_OUTPUT_LOW);
+		   bnx2x_set_spio(pbpctl_dev, 4, MISC_REGISTERS_SPIO_OUTPUT_LOW);
+		   bnx2x_set_spio(pbpctl_dev, 4, MISC_REGISTERS_SPIO_INPUT_HI_Z); */
+
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+
+		printk("2reg=%x\n", ctrl_ext);
+
+#ifdef BP_SYNC_FLAG
+		spin_unlock_irqrestore(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+		atomic_set(&pbpctl_dev->wdt_busy, 0);
+#endif
+
+		return 0;
+
+#endif
+
+	} else if (!pbpctl_dev->bp_10g) {
+
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)));
+	} else {
+
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, EODSDP);
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext &
+				 ~(BP10G_MCLK_DATA_OUT | BP10G_MDIO_DATA_OUT)));
+
+	}
+
+	usec_delay(CMND_INTERVAL);
+
+	/*send sync cmd */
+	write_pulse(pbpctl_dev, ctrl_ext, SYNC_CMD_VAL, SYNC_CMD_LEN);
+	/*send rd cmd */
+	write_pulse(pbpctl_dev, ctrl_ext, RD_CMD_VAL, RD_CMD_LEN);
+	/*send addr */
+	write_pulse(pbpctl_dev, ctrl_ext, addr, ADDR_CMD_LEN);
+	/*read data */
+	/* zero */
+	if (pbpctl_dev->bp_10g9) {
+		/* DATA 0 CLK 1 */
+		/*BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext|BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9)); */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext | BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				(ctrl | BP10G_MCLK_DATA_OUT9 |
+				 BP10G_MCLK_DIR_OUT9));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DATA5)));
+
+	} else if (pbpctl_dev->bp_i80) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+				   (ctrl_ext &
+				    ~(BPCTLI_CTRL_EXT_MDIO_DATA80 |
+				      BPCTLI_CTRL_EXT_MDIO_DIR80)));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   (ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80 |
+				    BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+	} else if (pbpctl_dev->bp_540) {
+		BP10G_WRITE_REG(pbpctl_dev, ESDP,
+				(((ctrl | BP540_MDIO_DIR | BP540_MCLK_DIR |
+				   BP540_MCLK_DATA) & ~BP540_MDIO_DATA)));
+
+	} else if (pbpctl_dev->bp_10gb) {
+
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_DIR | BP10GB_MCLK_SET)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_SET |
+				     BP10GB_MDIO_CLR | BP10GB_MCLK_CLR));
+
+	} else if (!pbpctl_dev->bp_10g)
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DATA)));
+	else {
+
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext | BP10G_MCLK_DATA_OUT |
+				 BP10G_MDIO_DATA_OUT));
+
+
+	}
+	usec_delay(PULSE_TIME);
+
+	ctrl_value = read_pulse(pbpctl_dev, ctrl_ext, RD_DATA_LEN);
+
+	if (pbpctl_dev->bp_10g9) {
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, I2CCTL);
+		ctrl = BP10G_READ_REG(pbpctl_dev_c, ESDP);
+
+		/* BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+		/* DATA 0 CLK 0 */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				((ctrl | BP10G_MCLK_DIR_OUT9) &
+				 ~(BP10G_MCLK_DATA_OUT9)));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DATA5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80) &
+				    ~BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+	} else if (pbpctl_dev->bp_540) {
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl | BP540_MCLK_DIR |
+						    BP540_MDIO_DIR) &
+						   ~(BP540_MDIO_DATA |
+						     BP540_MCLK_DATA)));
+
+	} else if (pbpctl_dev->bp_10gb) {
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_CLR)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_SET));
+
+	} else if (!pbpctl_dev->bp_10g) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)));
+	} else {
+
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, EODSDP);
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext &
+				 ~(BP10G_MCLK_DATA_OUT | BP10G_MDIO_DATA_OUT)));
+
+	}
+
+	usec_delay(CMND_INTERVAL * 4);
+#ifdef BP_SYNC_FLAG
+	spin_unlock_irqrestore(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+	atomic_set(&pbpctl_dev->wdt_busy, 0);
+#endif
+
+	return ctrl_value;
+}
+
+static int wdt_pulse(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0, ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_c = NULL;
+
+#ifdef BP_SYNC_FLAG
+	unsigned long flags;
+
+	spin_lock_irqsave(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+
+	if ((atomic_read(&pbpctl_dev->wdt_busy)) == 1)
+		return -1;
+#endif
+	if (pbpctl_dev->bp_10g9) {
+		if (!(pbpctl_dev_c = get_status_port_fn(pbpctl_dev)))
+			return -1;
+	}
+
+	if (pbpctl_dev->bp_10g9) {
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, I2CCTL);
+		ctrl = BP10G_READ_REG(pbpctl_dev_c, ESDP);
+
+		/* BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+		/* DATA 0 CLK 0 */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				((ctrl | BP10G_MCLK_DIR_OUT9) &
+				 ~(BP10G_MCLK_DATA_OUT9)));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DATA5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80) &
+				    ~BPCTLI_CTRL_EXT_MCLK_DATA80));
+	} else if (pbpctl_dev->bp_540) {
+		ctrl_ext = ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl | BP540_MCLK_DIR |
+						    BP540_MDIO_DIR) &
+						   ~(BP540_MDIO_DATA |
+						     BP540_MCLK_DATA)));
+	} else if (pbpctl_dev->bp_10gb) {
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_CLR)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_SET));
+
+	} else if (!pbpctl_dev->bp_10g) {
+
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)));
+	} else {
+
+		ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+		ctrl_ext = BP10G_READ_REG(pbpctl_dev, EODSDP);
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext &
+				 ~(BP10G_MCLK_DATA_OUT | BP10G_MDIO_DATA_OUT)));
+
+	}
+	if (pbpctl_dev->bp_10g9) {
+		/*   BP10G_WRITE_REG(pbpctl_dev, I2CCTL, ((ctrl_ext|BP10G_MCLK_DATA_OUT9)&~BP10G_MDIO_DATA_OUT9)); */
+		/* DATA 0 CLK 1 */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				(ctrl | BP10G_MCLK_DATA_OUT9 |
+				 BP10G_MCLK_DIR_OUT9));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MCLK_DATA5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MDIO_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   (ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80 |
+				    BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+	} else if (pbpctl_dev->bp_540) {
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl |
+						    BP540_MDIO_DIR |
+						    BP540_MCLK_DIR |
+						    BP540_MCLK_DATA) &
+						   ~BP540_MDIO_DATA));
+
+	} else if (pbpctl_dev->bp_10gb) {
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_SET)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_CLR));
+
+	} else if (!pbpctl_dev->bp_10g)
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MCLK_DATA)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MDIO_DATA)));
+	else {
+
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				((ctrl_ext | BP10G_MCLK_DATA_OUT) &
+				 ~BP10G_MDIO_DATA_OUT));
+
+	}
+
+	usec_delay(WDT_INTERVAL);
+	if (pbpctl_dev->bp_10g9) {
+		/* BP10G_WRITE_REG(pbpctl_dev, I2CCTL, (ctrl_ext&~(BP10G_MCLK_DATA_OUT9|BP10G_MDIO_DATA_OUT9))); */
+		/* DATA 0 CLK 0 */
+		BP10G_WRITE_REG(pbpctl_dev, I2CCTL,
+				(ctrl_ext & ~BP10G_MDIO_DATA_OUT9));
+		BP10G_WRITE_REG(pbpctl_dev_c, ESDP,
+				((ctrl | BP10G_MCLK_DIR_OUT9) &
+				 ~(BP10G_MCLK_DATA_OUT9)));
+
+	} else if (pbpctl_dev->bp_fiber5) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MCLK_DIR5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DIR5)
+						      &
+						      ~
+						      (BPCTLI_CTRL_EXT_MCLK_DATA5
+						       |
+						       BPCTLI_CTRL_EXT_MDIO_DATA5)));
+	} else if (pbpctl_dev->bp_i80) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, ((ctrl_ext |
+						       BPCTLI_CTRL_EXT_MDIO_DIR80)
+						      &
+						      ~BPCTLI_CTRL_EXT_MDIO_DATA80));
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+				   ((ctrl | BPCTLI_CTRL_EXT_MCLK_DIR80) &
+				    ~BPCTLI_CTRL_EXT_MCLK_DATA80));
+
+	} else if (pbpctl_dev->bp_540) {
+		BP10G_WRITE_REG(pbpctl_dev, ESDP, ((ctrl | BP540_MCLK_DIR |
+						    BP540_MDIO_DIR) &
+						   ~(BP540_MDIO_DATA |
+						     BP540_MCLK_DATA)));
+
+	} else if (pbpctl_dev->bp_10gb) {
+		ctrl_ext = BP10GB_READ_REG(pbpctl_dev, MISC_REG_SPIO);
+		BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_SPIO,
+				 (ctrl_ext | BP10GB_MDIO_CLR | BP10GB_MCLK_CLR)
+				 & ~(BP10GB_MCLK_DIR | BP10GB_MDIO_DIR |
+				     BP10GB_MDIO_SET | BP10GB_MCLK_SET));
+
+	} else if (!pbpctl_dev->bp_10g)
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MCLK_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DATA)));
+	else {
+
+		BP10G_WRITE_REG(pbpctl_dev, EODSDP,
+				(ctrl_ext &
+				 ~(BP10G_MCLK_DATA_OUT | BP10G_MDIO_DATA_OUT)));
+	}
+	if ((pbpctl_dev->wdt_status == WDT_STATUS_EN)	/*&&
+							   (pbpctl_dev->bp_ext_ver<PXG4BPFI_VER) */ )
+		pbpctl_dev->bypass_wdt_on_time = jiffies;
+#ifdef BP_SYNC_FLAG
+	spin_unlock_irqrestore(&pbpctl_dev->bypass_wr_lock, flags);
+#endif
+	usec_delay(CMND_INTERVAL * 4);
+	return 0;
+}
+
+static void data_pulse(bpctl_dev_t *pbpctl_dev, unsigned char value)
+{
+
+	uint32_t ctrl_ext = 0;
+#ifdef BP_SYNC_FLAG
+	unsigned long flags;
+#endif
+	wdt_time_left(pbpctl_dev);
+#ifdef BP_SYNC_FLAG
+	spin_lock_irqsave(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+	atomic_set(&pbpctl_dev->wdt_busy, 1);
+#endif
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+						   BPCTLI_CTRL_EXT_SDP6_DIR |
+						   BPCTLI_CTRL_EXT_SDP7_DIR) &
+						  ~(BPCTLI_CTRL_EXT_SDP6_DATA |
+						    BPCTLI_CTRL_EXT_SDP7_DATA)));
+
+	usec_delay(INIT_CMND_INTERVAL);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+						   BPCTLI_CTRL_EXT_SDP6_DIR |
+						   BPCTLI_CTRL_EXT_SDP7_DIR |
+						   BPCTLI_CTRL_EXT_SDP6_DATA) &
+						  ~
+						  (BPCTLI_CTRL_EXT_SDP7_DATA)));
+	usec_delay(INIT_CMND_INTERVAL);
+
+	while (value) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ctrl_ext |
+				   BPCTLI_CTRL_EXT_SDP6_DIR |
+				   BPCTLI_CTRL_EXT_SDP7_DIR |
+				   BPCTLI_CTRL_EXT_SDP6_DATA |
+				   BPCTLI_CTRL_EXT_SDP7_DATA);
+		usec_delay(PULSE_INTERVAL);
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_SDP6_DIR
+							   |
+							   BPCTLI_CTRL_EXT_SDP7_DIR
+							   |
+							   BPCTLI_CTRL_EXT_SDP6_DATA)
+							  &
+							  ~BPCTLI_CTRL_EXT_SDP7_DATA));
+		usec_delay(PULSE_INTERVAL);
+		value--;
+
+	}
+	usec_delay(INIT_CMND_INTERVAL - PULSE_INTERVAL);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+						   BPCTLI_CTRL_EXT_SDP6_DIR |
+						   BPCTLI_CTRL_EXT_SDP7_DIR) &
+						  ~(BPCTLI_CTRL_EXT_SDP6_DATA |
+						    BPCTLI_CTRL_EXT_SDP7_DATA)));
+	usec_delay(WDT_TIME_CNT);
+	if (pbpctl_dev->wdt_status == WDT_STATUS_EN)
+		pbpctl_dev->bypass_wdt_on_time = jiffies;
+#ifdef BP_SYNC_FLAG
+	spin_unlock_irqrestore(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+	atomic_set(&pbpctl_dev->wdt_busy, 0);
+#endif
+
+}
+
+static int send_wdt_pulse(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0;
+
+#ifdef BP_SYNC_FLAG
+	unsigned long flags;
+
+	spin_lock_irqsave(&pbpctl_dev->bypass_wr_lock, flags);
+#else
+
+	if ((atomic_read(&pbpctl_dev->wdt_busy)) == 1)
+		return -1;
+#endif
+	wdt_time_left(pbpctl_dev);
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ctrl_ext |	/* 1 */
+			   BPCTLI_CTRL_EXT_SDP7_DIR |
+			   BPCTLI_CTRL_EXT_SDP7_DATA);
+	usec_delay(PULSE_INTERVAL);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |	/* 0 */
+						   BPCTLI_CTRL_EXT_SDP7_DIR) &
+						  ~BPCTLI_CTRL_EXT_SDP7_DATA));
+
+	usec_delay(PULSE_INTERVAL);
+	if (pbpctl_dev->wdt_status == WDT_STATUS_EN)
+		pbpctl_dev->bypass_wdt_on_time = jiffies;
+#ifdef BP_SYNC_FLAG
+	spin_unlock_irqrestore(&pbpctl_dev->bypass_wr_lock, flags);
+#endif
+
+	return 0;
+}
+
+void send_bypass_clear_pulse(bpctl_dev_t *pbpctl_dev, unsigned int value)
+{
+	uint32_t ctrl_ext = 0;
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |	/* 0 */
+						   BPCTLI_CTRL_EXT_SDP6_DIR) &
+						  ~BPCTLI_CTRL_EXT_SDP6_DATA));
+
+	usec_delay(PULSE_INTERVAL);
+	while (value) {
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ctrl_ext |	/* 1 */
+				   BPCTLI_CTRL_EXT_SDP6_DIR |
+				   BPCTLI_CTRL_EXT_SDP6_DATA);
+		usec_delay(PULSE_INTERVAL);
+		value--;
+	}
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |	/* 0 */
+						   BPCTLI_CTRL_EXT_SDP6_DIR) &
+						  ~BPCTLI_CTRL_EXT_SDP6_DATA));
+	usec_delay(PULSE_INTERVAL);
+}
+
+/*  #endif  OLD_FW */
+#ifdef BYPASS_DEBUG
+
+int pulse_set_fn(bpctl_dev_t *pbpctl_dev, unsigned int counter)
+{
+	uint32_t ctrl_ext = 0;
+
+	if (!pbpctl_dev)
+		return -1;
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	write_pulse_1(pbpctl_dev, ctrl_ext, counter, counter);
+
+	pbpctl_dev->bypass_wdt_status = 0;
+	if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+		write_pulse_1(pbpctl_dev, ctrl_ext, counter, counter);
+	} else {
+		wdt_time_left(pbpctl_dev);
+		if (pbpctl_dev->wdt_status == WDT_STATUS_EN) {
+			pbpctl_dev->wdt_status = 0;
+			data_pulse(pbpctl_dev, counter);
+			pbpctl_dev->wdt_status = WDT_STATUS_EN;
+			pbpctl_dev->bypass_wdt_on_time = jiffies;
+
+		} else
+			data_pulse(pbpctl_dev, counter);
+	}
+
+	return 0;
+}
+
+int zero_set_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0, ctrl_value = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+		printk("zero_set");
+
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+
+		BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+							   BPCTLI_CTRL_EXT_MCLK_DIR)
+							  &
+							  ~
+							  (BPCTLI_CTRL_EXT_MCLK_DATA
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DIR
+							   |
+							   BPCTLI_CTRL_EXT_MDIO_DATA)));
+
+	}
+	return ctrl_value;
+}
+
+int pulse_get2_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0, ctrl_value = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+		printk("pulse_get_fn\n");
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		ctrl_value = read_pulse_2(pbpctl_dev, ctrl_ext);
+		printk("read:%d\n", ctrl_value);
+	}
+	return ctrl_value;
+}
+
+int pulse_get1_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0, ctrl_value = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+
+		printk("pulse_get_fn\n");
+
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		ctrl_value = read_pulse_1(pbpctl_dev, ctrl_ext);
+		printk("read:%d\n", ctrl_value);
+	}
+	return ctrl_value;
+}
+
+int gpio6_set_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0;
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ctrl_ext |
+			   BPCTLI_CTRL_EXT_SDP6_DIR |
+			   BPCTLI_CTRL_EXT_SDP6_DATA);
+	return 0;
+}
+
+int gpio7_set_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0;
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ctrl_ext |
+			   BPCTLI_CTRL_EXT_SDP7_DIR |
+			   BPCTLI_CTRL_EXT_SDP7_DATA);
+	return 0;
+}
+
+int gpio7_clear_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0;
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+						   BPCTLI_CTRL_EXT_SDP7_DIR) &
+						  ~BPCTLI_CTRL_EXT_SDP7_DATA));
+	return 0;
+}
+
+int gpio6_clear_fn(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0;
+
+	ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, ((ctrl_ext |
+						   BPCTLI_CTRL_EXT_SDP6_DIR) &
+						  ~BPCTLI_CTRL_EXT_SDP6_DATA));
+	return 0;
+}
+#endif				/*BYPASS_DEBUG */
+
+static bpctl_dev_t *get_status_port_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int idx_dev = 0;
+
+	if (pbpctl_dev == NULL)
+		return NULL;
+
+	if ((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) {
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus)
+			    && (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot)
+			    && ((bpctl_dev_arr[idx_dev].func == 1)
+				&& (pbpctl_dev->func == 0))) {
+
+				return &(bpctl_dev_arr[idx_dev]);
+			}
+			if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) &&
+			    (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) &&
+			    ((bpctl_dev_arr[idx_dev].func == 3)
+			     && (pbpctl_dev->func == 2))) {
+
+				return &(bpctl_dev_arr[idx_dev]);
+			}
+		}
+	}
+	return NULL;
+}
+
+static bpctl_dev_t *get_master_port_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int idx_dev = 0;
+
+	if (pbpctl_dev == NULL)
+		return NULL;
+
+	if ((pbpctl_dev->func == 1) || (pbpctl_dev->func == 3)) {
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus)
+			    && (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot)
+			    && ((bpctl_dev_arr[idx_dev].func == 0)
+				&& (pbpctl_dev->func == 1))) {
+
+				return &(bpctl_dev_arr[idx_dev]);
+			}
+			if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) &&
+			    (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) &&
+			    ((bpctl_dev_arr[idx_dev].func == 2)
+			     && (pbpctl_dev->func == 3))) {
+
+				return &(bpctl_dev_arr[idx_dev]);
+			}
+		}
+	}
+	return NULL;
+}
+
+/**************************************/
+/**************INTEL API***************/
+/**************************************/
+
+static void write_data_port_int(bpctl_dev_t *pbpctl_dev,
+				unsigned char ctrl_value)
+{
+	uint32_t value;
+
+	value = BPCTL_READ_REG(pbpctl_dev, CTRL);
+/* Make SDP0 Pin Directonality to Output */
+	value |= BPCTLI_CTRL_SDP0_DIR;
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, value);
+
+	value &= ~BPCTLI_CTRL_SDP0_DATA;
+	value |= ((ctrl_value & 0x1) << BPCTLI_CTRL_SDP0_SHIFT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL, value);
+
+	value = (BPCTL_READ_REG(pbpctl_dev, CTRL_EXT));
+/* Make SDP2 Pin Directonality to Output */
+	value |= BPCTLI_CTRL_EXT_SDP6_DIR;
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, value);
+
+	value &= ~BPCTLI_CTRL_EXT_SDP6_DATA;
+	value |= (((ctrl_value & 0x2) >> 1) << BPCTLI_CTRL_EXT_SDP6_SHIFT);
+	BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT, value);
+
+}
+
+static int write_data_int(bpctl_dev_t *pbpctl_dev, unsigned char value)
+{
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+		return -1;
+	atomic_set(&pbpctl_dev->wdt_busy, 1);
+	write_data_port_int(pbpctl_dev, value & 0x3);
+	write_data_port_int(pbpctl_dev_b, ((value & 0xc) >> 2));
+	atomic_set(&pbpctl_dev->wdt_busy, 0);
+
+	return 0;
+}
+
+static int wdt_pulse_int(bpctl_dev_t *pbpctl_dev)
+{
+
+	if ((atomic_read(&pbpctl_dev->wdt_busy)) == 1)
+		return -1;
+
+	if ((write_data_int(pbpctl_dev, RESET_WDT_INT)) < 0)
+		return -1;
+	msec_delay_bp(CMND_INTERVAL_INT);
+	if ((write_data_int(pbpctl_dev, CMND_OFF_INT)) < 0)
+		return -1;
+	msec_delay_bp(CMND_INTERVAL_INT);
+
+	if (pbpctl_dev->wdt_status == WDT_STATUS_EN)
+		pbpctl_dev->bypass_wdt_on_time = jiffies;
+
+	return 0;
+}
+
+/*************************************/
+/************* COMMANDS **************/
+/*************************************/
+
+/* CMND_ON  0x4 (100)*/
+int cmnd_on(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+			return 0;
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER)
+			write_data(pbpctl_dev, CMND_ON);
+		else
+			data_pulse(pbpctl_dev, CMND_ON);
+		ret = 0;
+	}
+	return ret;
+}
+
+/* CMND_OFF  0x2 (10)*/
+int cmnd_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, CMND_OFF_INT);
+			msec_delay_bp(CMND_INTERVAL_INT);
+		} else if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER)
+			write_data(pbpctl_dev, CMND_OFF);
+		else
+			data_pulse(pbpctl_dev, CMND_OFF);
+		ret = 0;
+	};
+	return ret;
+}
+
+/* BYPASS_ON (0xa)*/
+int bypass_on(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & BP_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, BYPASS_ON_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+			pbpctl_dev->bp_status_un = 0;
+		} else if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			write_data(pbpctl_dev, BYPASS_ON);
+			if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)
+				msec_delay_bp(LATCH_DELAY);
+		} else
+			data_pulse(pbpctl_dev, BYPASS_ON);
+		ret = 0;
+	};
+	return ret;
+}
+
+/* BYPASS_OFF (0x8 111)*/
+int bypass_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & BP_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, DIS_BYPASS_CAP_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+			write_data_int(pbpctl_dev, PWROFF_BYPASS_ON_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+			pbpctl_dev->bp_status_un = 0;
+		} else if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			write_data(pbpctl_dev, BYPASS_OFF);
+			if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)
+				msec_delay_bp(LATCH_DELAY);
+		} else
+			data_pulse(pbpctl_dev, BYPASS_OFF);
+		ret = 0;
+	}
+	return ret;
+}
+
+/* TAP_OFF (0x9)*/
+int tap_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	if ((pbpctl_dev->bp_caps & TAP_CAP)
+	    && (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)) {
+		write_data(pbpctl_dev, TAP_OFF);
+		msec_delay_bp(LATCH_DELAY);
+		ret = 0;
+	};
+	return ret;
+}
+
+/* TAP_ON (0xb)*/
+int tap_on(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	if ((pbpctl_dev->bp_caps & TAP_CAP)
+	    && (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)) {
+		write_data(pbpctl_dev, TAP_ON);
+		msec_delay_bp(LATCH_DELAY);
+		ret = 0;
+	};
+	return ret;
+}
+
+/* DISC_OFF (0x9)*/
+int disc_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if ((pbpctl_dev->bp_caps & DISC_CAP) && (pbpctl_dev->bp_ext_ver >= 0x8)) {
+		write_data(pbpctl_dev, DISC_OFF);
+		msec_delay_bp(LATCH_DELAY);
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+/* DISC_ON (0xb)*/
+int disc_on(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if ((pbpctl_dev->bp_caps & DISC_CAP) && (pbpctl_dev->bp_ext_ver >= 0x8)) {
+		write_data(pbpctl_dev, /*DISC_ON */ 0x85);
+		msec_delay_bp(LATCH_DELAY);
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+/* DISC_PORT_ON */
+int disc_port_on(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	bpctl_dev_t *pbpctl_dev_m;
+
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		if (is_bypass_fn(pbpctl_dev) == 1) {
+
+			write_data(pbpctl_dev_m, TX_DISA);
+		} else {
+
+			write_data(pbpctl_dev_m, TX_DISB);
+		}
+
+		msec_delay_bp(LATCH_DELAY);
+
+	}
+	return ret;
+}
+
+/* DISC_PORT_OFF */
+int disc_port_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	bpctl_dev_t *pbpctl_dev_m;
+
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		if (is_bypass_fn(pbpctl_dev) == 1)
+			write_data(pbpctl_dev_m, TX_ENA);
+		else
+			write_data(pbpctl_dev_m, TX_ENB);
+
+		msec_delay_bp(LATCH_DELAY);
+
+	}
+	return ret;
+}
+
+/*TWO_PORT_LINK_HW_EN (0xe)*/
+int tpl_hw_on(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0, ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps_ex & TPL2_CAP_EX) {
+		cmnd_on(pbpctl_dev);
+		write_data(pbpctl_dev, TPL2_ON);
+		msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		cmnd_off(pbpctl_dev);
+		return ret;
+	}
+
+	if (TPL_IF_SERIES(pbpctl_dev->subdevice)) {
+		ctrl = BPCTL_READ_REG(pbpctl_dev_b, CTRL);
+		BPCTL_BP_WRITE_REG(pbpctl_dev_b, CTRL,
+				   ((ctrl | BPCTLI_CTRL_SWDPIO0) &
+				    ~BPCTLI_CTRL_SWDPIN0));
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+/*TWO_PORT_LINK_HW_DIS (0xc)*/
+int tpl_hw_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0, ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+		return BP_NOT_CAP;
+	if (pbpctl_dev->bp_caps_ex & TPL2_CAP_EX) {
+		cmnd_on(pbpctl_dev);
+		write_data(pbpctl_dev, TPL2_OFF);
+		msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		cmnd_off(pbpctl_dev);
+		return ret;
+	}
+	if (TPL_IF_SERIES(pbpctl_dev->subdevice)) {
+		ctrl = BPCTL_READ_REG(pbpctl_dev_b, CTRL);
+		BPCTL_BP_WRITE_REG(pbpctl_dev_b, CTRL,
+				   (ctrl | BPCTLI_CTRL_SWDPIO0 |
+				    BPCTLI_CTRL_SWDPIN0));
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+/* WDT_OFF (0x6 110)*/
+int wdt_off(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			bypass_off(pbpctl_dev);
+		} else if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER)
+			write_data(pbpctl_dev, WDT_OFF);
+		else
+			data_pulse(pbpctl_dev, WDT_OFF);
+		pbpctl_dev->wdt_status = WDT_STATUS_DIS;
+		ret = 0;
+	};
+	return ret;
+}
+
+/* WDT_ON (0x10)*/
+
+/***Global***/
+static unsigned int
+    wdt_val_array[] = { 1000, 1500, 2000, 3000, 4000, 8000, 16000, 32000, 0 };
+
+int wdt_on(bpctl_dev_t *pbpctl_dev, unsigned int timeout)
+{
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		unsigned int pulse = 0, temp_value = 0, temp_cnt = 0;
+		pbpctl_dev->wdt_status = 0;
+
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			for (; wdt_val_array[temp_cnt]; temp_cnt++)
+				if (timeout <= wdt_val_array[temp_cnt])
+					break;
+
+			if (!wdt_val_array[temp_cnt])
+				temp_cnt--;
+
+			timeout = wdt_val_array[temp_cnt];
+			temp_cnt += 0x7;
+
+			write_data_int(pbpctl_dev, DIS_BYPASS_CAP_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+			pbpctl_dev->bp_status_un = 0;
+			write_data_int(pbpctl_dev, temp_cnt);
+			pbpctl_dev->bypass_wdt_on_time = jiffies;
+			msec_delay_bp(CMND_INTERVAL_INT);
+			pbpctl_dev->bypass_timer_interval = timeout;
+		} else {
+			timeout =
+			    (timeout <
+			     TIMEOUT_UNIT ? TIMEOUT_UNIT : (timeout >
+							    WDT_TIMEOUT_MAX ?
+							    WDT_TIMEOUT_MAX :
+							    timeout));
+			temp_value = timeout / 100;
+			while ((temp_value >>= 1))
+				temp_cnt++;
+			if (timeout > ((1 << temp_cnt) * 100))
+				temp_cnt++;
+			pbpctl_dev->bypass_wdt_on_time = jiffies;
+			pulse = (WDT_ON | temp_cnt);
+			if (pbpctl_dev->bp_ext_ver == OLD_IF_VER)
+				data_pulse(pbpctl_dev, pulse);
+			else
+				write_data(pbpctl_dev, pulse);
+			pbpctl_dev->bypass_timer_interval =
+			    (1 << temp_cnt) * 100;
+		}
+		pbpctl_dev->wdt_status = WDT_STATUS_EN;
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+void bp75_put_hw_semaphore_generic(bpctl_dev_t *pbpctl_dev)
+{
+	u32 swsm;
+
+	swsm = BPCTL_READ_REG(pbpctl_dev, SWSM);
+
+	swsm &= ~(BPCTLI_SWSM_SMBI | BPCTLI_SWSM_SWESMBI);
+
+	BPCTL_WRITE_REG(pbpctl_dev, SWSM, swsm);
+}
+
+s32 bp75_get_hw_semaphore_generic(bpctl_dev_t *pbpctl_dev)
+{
+	u32 swsm;
+	s32 ret_val = 0;
+	s32 timeout = 8192 + 1;
+	s32 i = 0;
+
+	/* Get the SW semaphore */
+	while (i < timeout) {
+		swsm = BPCTL_READ_REG(pbpctl_dev, SWSM);
+		if (!(swsm & BPCTLI_SWSM_SMBI))
+			break;
+
+		usec_delay(50);
+		i++;
+	}
+
+	if (i == timeout) {
+		printk
+		    ("bpctl_mod: Driver can't access device - SMBI bit is set.\n");
+		ret_val = -1;
+		goto out;
+	}
+
+	/* Get the FW semaphore. */
+	for (i = 0; i < timeout; i++) {
+		swsm = BPCTL_READ_REG(pbpctl_dev, SWSM);
+		BPCTL_WRITE_REG(pbpctl_dev, SWSM, swsm | BPCTLI_SWSM_SWESMBI);
+
+		/* Semaphore acquired if bit latched */
+		if (BPCTL_READ_REG(pbpctl_dev, SWSM) & BPCTLI_SWSM_SWESMBI)
+			break;
+
+		usec_delay(50);
+	}
+
+	if (i == timeout) {
+		/* Release semaphores */
+		bp75_put_hw_semaphore_generic(pbpctl_dev);
+		printk("bpctl_mod: Driver can't access the NVM\n");
+		ret_val = -1;
+		goto out;
+	}
+
+ out:
+	return ret_val;
+}
+
+static void bp75_release_phy(bpctl_dev_t *pbpctl_dev)
+{
+	u16 mask = BPCTLI_SWFW_PHY0_SM;
+	u32 swfw_sync;
+
+	if ((pbpctl_dev->func == 1) || (pbpctl_dev->func == 3))
+		mask = BPCTLI_SWFW_PHY1_SM;
+
+	while (bp75_get_hw_semaphore_generic(pbpctl_dev) != 0) ;
+	/* Empty */
+
+	swfw_sync = BPCTL_READ_REG(pbpctl_dev, SW_FW_SYNC);
+	swfw_sync &= ~mask;
+	BPCTL_WRITE_REG(pbpctl_dev, SW_FW_SYNC, swfw_sync);
+
+	bp75_put_hw_semaphore_generic(pbpctl_dev);
+}
+
+static s32 bp75_acquire_phy(bpctl_dev_t *pbpctl_dev)
+{
+	u16 mask = BPCTLI_SWFW_PHY0_SM;
+	u32 swfw_sync;
+	u32 swmask;
+	u32 fwmask;
+	s32 ret_val = 0;
+	s32 i = 0, timeout = 200;
+
+	if ((pbpctl_dev->func == 1) || (pbpctl_dev->func == 3))
+		mask = BPCTLI_SWFW_PHY1_SM;
+
+	swmask = mask;
+	fwmask = mask << 16;
+
+	while (i < timeout) {
+		if (bp75_get_hw_semaphore_generic(pbpctl_dev)) {
+			ret_val = -1;
+			goto out;
+		}
+
+		swfw_sync = BPCTL_READ_REG(pbpctl_dev, SW_FW_SYNC);
+		if (!(swfw_sync & (fwmask | swmask)))
+			break;
+
+		bp75_put_hw_semaphore_generic(pbpctl_dev);
+		mdelay(5);
+		i++;
+	}
+
+	if (i == timeout) {
+		printk
+		    ("bpctl_mod: Driver can't access resource, SW_FW_SYNC timeout.\n");
+		ret_val = -1;
+		goto out;
+	}
+
+	swfw_sync |= swmask;
+	BPCTL_WRITE_REG(pbpctl_dev, SW_FW_SYNC, swfw_sync);
+
+	bp75_put_hw_semaphore_generic(pbpctl_dev);
+
+ out:
+	return ret_val;
+}
+
+s32 bp75_read_phy_reg_mdic(bpctl_dev_t *pbpctl_dev, u32 offset, u16 *data)
+{
+	u32 i, mdic = 0;
+	s32 ret_val = 0;
+	u32 phy_addr = 1;
+
+	mdic = ((offset << BPCTLI_MDIC_REG_SHIFT) |
+		(phy_addr << BPCTLI_MDIC_PHY_SHIFT) | (BPCTLI_MDIC_OP_READ));
+
+	BPCTL_WRITE_REG(pbpctl_dev, MDIC, mdic);
+
+	for (i = 0; i < (BPCTLI_GEN_POLL_TIMEOUT * 3); i++) {
+		usec_delay(50);
+		mdic = BPCTL_READ_REG(pbpctl_dev, MDIC);
+		if (mdic & BPCTLI_MDIC_READY)
+			break;
+	}
+	if (!(mdic & BPCTLI_MDIC_READY)) {
+		printk("bpctl_mod: MDI Read did not complete\n");
+		ret_val = -1;
+		goto out;
+	}
+	if (mdic & BPCTLI_MDIC_ERROR) {
+		printk("bpctl_mod: MDI Error\n");
+		ret_val = -1;
+		goto out;
+	}
+	*data = (u16) mdic;
+
+ out:
+	return ret_val;
+}
+
+s32 bp75_write_phy_reg_mdic(bpctl_dev_t *pbpctl_dev, u32 offset, u16 data)
+{
+	u32 i, mdic = 0;
+	s32 ret_val = 0;
+	u32 phy_addr = 1;
+
+	mdic = (((u32) data) |
+		(offset << BPCTLI_MDIC_REG_SHIFT) |
+		(phy_addr << BPCTLI_MDIC_PHY_SHIFT) | (BPCTLI_MDIC_OP_WRITE));
+
+	BPCTL_WRITE_REG(pbpctl_dev, MDIC, mdic);
+
+	for (i = 0; i < (BPCTLI_GEN_POLL_TIMEOUT * 3); i++) {
+		usec_delay(50);
+		mdic = BPCTL_READ_REG(pbpctl_dev, MDIC);
+		if (mdic & BPCTLI_MDIC_READY)
+			break;
+	}
+	if (!(mdic & BPCTLI_MDIC_READY)) {
+		printk("bpctl_mod: MDI Write did not complete\n");
+		ret_val = -1;
+		goto out;
+	}
+	if (mdic & BPCTLI_MDIC_ERROR) {
+		printk("bpctl_mod: MDI Error\n");
+		ret_val = -1;
+		goto out;
+	}
+
+ out:
+	return ret_val;
+}
+
+static s32 bp75_read_phy_reg(bpctl_dev_t *pbpctl_dev, u32 offset, u16 *data)
+{
+	s32 ret_val = 0;
+
+	ret_val = bp75_acquire_phy(pbpctl_dev);
+	if (ret_val)
+		goto out;
+
+	if (offset > BPCTLI_MAX_PHY_MULTI_PAGE_REG) {
+		ret_val = bp75_write_phy_reg_mdic(pbpctl_dev,
+						  BPCTLI_IGP01E1000_PHY_PAGE_SELECT,
+						  (u16) offset);
+		if (ret_val)
+			goto release;
+	}
+
+	ret_val =
+	    bp75_read_phy_reg_mdic(pbpctl_dev,
+				   BPCTLI_MAX_PHY_REG_ADDRESS & offset, data);
+
+ release:
+	bp75_release_phy(pbpctl_dev);
+ out:
+	return ret_val;
+}
+
+static s32 bp75_write_phy_reg(bpctl_dev_t *pbpctl_dev, u32 offset, u16 data)
+{
+	s32 ret_val = 0;
+
+	ret_val = bp75_acquire_phy(pbpctl_dev);
+	if (ret_val)
+		goto out;
+
+	if (offset > BPCTLI_MAX_PHY_MULTI_PAGE_REG) {
+		ret_val = bp75_write_phy_reg_mdic(pbpctl_dev,
+						  BPCTLI_IGP01E1000_PHY_PAGE_SELECT,
+						  (u16) offset);
+		if (ret_val)
+			goto release;
+	}
+
+	ret_val =
+	    bp75_write_phy_reg_mdic(pbpctl_dev,
+				    BPCTLI_MAX_PHY_REG_ADDRESS & offset, data);
+
+ release:
+	bp75_release_phy(pbpctl_dev);
+
+ out:
+	return ret_val;
+}
+
+/* SET_TX  (non-Bypass command :)) */
+static int set_tx(bpctl_dev_t *pbpctl_dev, int tx_state)
+{
+	int ret = 0, ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_m;
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		if (!tx_state) {
+			if (pbpctl_dev->bp_540) {
+				ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						(ctrl | BP10G_SDP1_DIR |
+						 BP10G_SDP1_DATA));
+
+			} else {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   (ctrl | BPCTLI_CTRL_SDP1_DIR
+						    | BPCTLI_CTRL_SWDPIN1));
+			}
+		} else {
+			if (pbpctl_dev->bp_540) {
+				ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP10G_SDP1_DIR) &
+						 ~BP10G_SDP1_DATA));
+			} else {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl |
+						     BPCTLI_CTRL_SDP1_DIR) &
+						    ~BPCTLI_CTRL_SWDPIN1));
+			}
+			return ret;
+
+		}
+	} else if (pbpctl_dev->bp_caps & TX_CTL_CAP) {
+		if (PEG5_IF_SERIES(pbpctl_dev->subdevice)) {
+			if (tx_state) {
+				uint16_t mii_reg;
+				if (!
+				    (ret =
+				     bp75_read_phy_reg(pbpctl_dev,
+						       BPCTLI_PHY_CONTROL,
+						       &mii_reg))) {
+					if (mii_reg & BPCTLI_MII_CR_POWER_DOWN) {
+						ret =
+						    bp75_write_phy_reg
+						    (pbpctl_dev,
+						     BPCTLI_PHY_CONTROL,
+						     mii_reg &
+						     ~BPCTLI_MII_CR_POWER_DOWN);
+					}
+				}
+			} else {
+				uint16_t mii_reg;
+				if (!
+				    (ret =
+				     bp75_read_phy_reg(pbpctl_dev,
+						       BPCTLI_PHY_CONTROL,
+						       &mii_reg))) {
+
+					mii_reg |= BPCTLI_MII_CR_POWER_DOWN;
+					ret =
+					    bp75_write_phy_reg(pbpctl_dev,
+							       BPCTLI_PHY_CONTROL,
+							       mii_reg);
+				}
+			}
+
+		}
+		if (pbpctl_dev->bp_fiber5) {
+			ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+
+		} else if (pbpctl_dev->bp_10gb)
+			ctrl = BP10GB_READ_REG(pbpctl_dev, MISC_REG_GPIO);
+
+		else if (!pbpctl_dev->bp_10g)
+			ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		else
+			ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+
+		if (!tx_state)
+			if (pbpctl_dev->bp_10g9) {
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						(ctrl | BP10G_SDP3_DATA |
+						 BP10G_SDP3_DIR));
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   (ctrl |
+						    BPCTLI_CTRL_EXT_SDP6_DIR |
+						    BPCTLI_CTRL_EXT_SDP6_DATA));
+
+			} else if (pbpctl_dev->bp_10gb) {
+				if ((pbpctl_dev->func == 1)
+				    || (pbpctl_dev->func == 3))
+					BP10GB_WRITE_REG(pbpctl_dev,
+							 MISC_REG_GPIO,
+							 (ctrl |
+							  BP10GB_GPIO0_SET_P1) &
+							 ~(BP10GB_GPIO0_CLR_P1 |
+							   BP10GB_GPIO0_OE_P1));
+				else
+					BP10GB_WRITE_REG(pbpctl_dev,
+							 MISC_REG_GPIO,
+							 (ctrl |
+							  BP10GB_GPIO0_OE_P0 |
+							  BP10GB_GPIO0_SET_P0));
+
+			} else if (pbpctl_dev->bp_i80) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   (ctrl | BPCTLI_CTRL_SDP1_DIR
+						    | BPCTLI_CTRL_SWDPIN1));
+
+			} else if (pbpctl_dev->bp_540) {
+				ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						(ctrl | BP10G_SDP1_DIR |
+						 BP10G_SDP1_DATA));
+
+			}
+
+			else if (!pbpctl_dev->bp_10g)
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   (ctrl | BPCTLI_CTRL_SWDPIO0 |
+						    BPCTLI_CTRL_SWDPIN0));
+
+			else
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						(ctrl | BP10G_SDP0_DATA |
+						 BP10G_SDP0_DIR));
+
+		else {
+			if (pbpctl_dev->bp_10g9) {
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP10G_SDP3_DIR) &
+						 ~BP10G_SDP3_DATA));
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL_EXT,
+						   ((ctrl |
+						     BPCTLI_CTRL_EXT_SDP6_DIR) &
+						    ~BPCTLI_CTRL_EXT_SDP6_DATA));
+
+			} else if (pbpctl_dev->bp_10gb) {
+				if ((bpctl_dev_arr->func == 1)
+				    || (bpctl_dev_arr->func == 3))
+					BP10GB_WRITE_REG(pbpctl_dev,
+							 MISC_REG_GPIO,
+							 (ctrl |
+							  BP10GB_GPIO0_CLR_P1) &
+							 ~(BP10GB_GPIO0_SET_P1 |
+							   BP10GB_GPIO0_OE_P1));
+				else
+					BP10GB_WRITE_REG(pbpctl_dev,
+							 MISC_REG_GPIO,
+							 (ctrl |
+							  BP10GB_GPIO0_OE_P0 |
+							  BP10GB_GPIO0_CLR_P0));
+
+			} else if (pbpctl_dev->bp_i80) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl |
+						     BPCTLI_CTRL_SDP1_DIR) &
+						    ~BPCTLI_CTRL_SWDPIN1));
+			} else if (pbpctl_dev->bp_540) {
+				ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP10G_SDP1_DIR) &
+						 ~BP10G_SDP1_DATA));
+			}
+
+			else if (!pbpctl_dev->bp_10g) {
+				BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+						   ((ctrl | BPCTLI_CTRL_SWDPIO0)
+						    & ~BPCTLI_CTRL_SWDPIN0));
+				if (!PEGF_IF_SERIES(pbpctl_dev->subdevice)) {
+					BPCTL_BP_WRITE_REG(pbpctl_dev, CTRL,
+							   (ctrl &
+							    ~
+							    (BPCTLI_CTRL_SDP0_DATA
+							     |
+							     BPCTLI_CTRL_SDP0_DIR)));
+				}
+			} else
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP10G_SDP0_DIR) &
+						 ~BP10G_SDP0_DATA));
+
+		}
+
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+
+}
+
+/* SET_FORCE_LINK  (non-Bypass command :)) */
+static int set_bp_force_link(bpctl_dev_t *pbpctl_dev, int tx_state)
+{
+	int ret = 0, ctrl = 0;
+
+	if (DBI_IF_SERIES(pbpctl_dev->subdevice)) {
+
+		if ((pbpctl_dev->bp_10g) || (pbpctl_dev->bp_10g9)) {
+
+			ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
+			if (!tx_state)
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						ctrl & ~BP10G_SDP1_DIR);
+			else
+				BP10G_WRITE_REG(pbpctl_dev, ESDP,
+						((ctrl | BP10G_SDP1_DIR) &
+						 ~BP10G_SDP1_DATA));
+			return ret;
+		}
+
+	}
+	return BP_NOT_CAP;
+}
+
+/*RESET_CONT 0x20 */
+int reset_cont(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+			return BP_NOT_CAP;
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER)
+			write_data(pbpctl_dev, RESET_CONT);
+		else
+			data_pulse(pbpctl_dev, RESET_CONT);
+		ret = 0;
+	};
+	return ret;
+}
+
+/*DIS_BYPASS_CAP 0x22 */
+int dis_bypass_cap(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & BP_DIS_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, DIS_BYPASS_CAP_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+		} else {
+			write_data(pbpctl_dev, BYPASS_OFF);
+			msec_delay_bp(LATCH_DELAY);
+			write_data(pbpctl_dev, DIS_BYPASS_CAP);
+			msec_delay_bp(BYPASS_CAP_DELAY);
+		}
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/*EN_BYPASS_CAP 0x24 */
+int en_bypass_cap(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & BP_DIS_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, PWROFF_BYPASS_ON_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+		} else {
+			write_data(pbpctl_dev, EN_BYPASS_CAP);
+			msec_delay_bp(BYPASS_CAP_DELAY);
+		}
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/* BYPASS_STATE_PWRON 0x26*/
+int bypass_state_pwron(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & BP_PWUP_CTL_CAP) {
+		write_data(pbpctl_dev, BYPASS_STATE_PWRON);
+		if (pbpctl_dev->bp_ext_ver == PXG2BPI_VER)
+			msec_delay_bp(DFLT_PWRON_DELAY);
+		else
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/* NORMAL_STATE_PWRON 0x28*/
+int normal_state_pwron(bpctl_dev_t *pbpctl_dev)
+{
+	if ((pbpctl_dev->bp_caps & BP_PWUP_CTL_CAP)
+	    || (pbpctl_dev->bp_caps & TAP_PWUP_CTL_CAP)) {
+		write_data(pbpctl_dev, NORMAL_STATE_PWRON);
+		if (pbpctl_dev->bp_ext_ver == PXG2BPI_VER)
+			msec_delay_bp(DFLT_PWRON_DELAY);
+		else
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/* BYPASS_STATE_PWROFF 0x27*/
+int bypass_state_pwroff(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & BP_PWOFF_CTL_CAP) {
+		write_data(pbpctl_dev, BYPASS_STATE_PWROFF);
+		msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/* NORMAL_STATE_PWROFF 0x29*/
+int normal_state_pwroff(bpctl_dev_t *pbpctl_dev)
+{
+	if ((pbpctl_dev->bp_caps & BP_PWOFF_CTL_CAP)) {
+		write_data(pbpctl_dev, NORMAL_STATE_PWROFF);
+		msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/*TAP_STATE_PWRON 0x2a*/
+int tap_state_pwron(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & TAP_PWUP_CTL_CAP) {
+		write_data(pbpctl_dev, TAP_STATE_PWRON);
+		msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/*DIS_TAP_CAP 0x2c*/
+int dis_tap_cap(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & TAP_DIS_CAP) {
+		write_data(pbpctl_dev, DIS_TAP_CAP);
+		msec_delay_bp(BYPASS_CAP_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/*EN_TAP_CAP 0x2e*/
+int en_tap_cap(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & TAP_DIS_CAP) {
+		write_data(pbpctl_dev, EN_TAP_CAP);
+		msec_delay_bp(BYPASS_CAP_DELAY);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+/*DISC_STATE_PWRON 0x2a*/
+int disc_state_pwron(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & DISC_PWUP_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			write_data(pbpctl_dev, DISC_STATE_PWRON);
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+/*DIS_DISC_CAP 0x2c*/
+int dis_disc_cap(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & DISC_DIS_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			write_data(pbpctl_dev, DIS_DISC_CAP);
+			msec_delay_bp(BYPASS_CAP_DELAY);
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+/*DISC_STATE_PWRON 0x2a*/
+int disc_port_state_pwron(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	bpctl_dev_t *pbpctl_dev_m;
+
+	return BP_NOT_CAP;
+
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		if (is_bypass_fn(pbpctl_dev) == 1)
+			write_data(pbpctl_dev_m, TX_DISA_PWRUP);
+		else
+			write_data(pbpctl_dev_m, TX_DISB_PWRUP);
+
+		msec_delay_bp(LATCH_DELAY);
+
+	}
+	return ret;
+}
+
+int normal_port_state_pwron(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	bpctl_dev_t *pbpctl_dev_m;
+	return BP_NOT_CAP;
+
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		if (is_bypass_fn(pbpctl_dev) == 1)
+			write_data(pbpctl_dev_m, TX_ENA_PWRUP);
+		else
+			write_data(pbpctl_dev_m, TX_ENB_PWRUP);
+
+		msec_delay_bp(LATCH_DELAY);
+
+	}
+	return ret;
+}
+
+/*EN_TAP_CAP 0x2e*/
+int en_disc_cap(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & DISC_DIS_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			write_data(pbpctl_dev, EN_DISC_CAP);
+			msec_delay_bp(BYPASS_CAP_DELAY);
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int std_nic_on(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & STD_NIC_CAP) {
+
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, DIS_BYPASS_CAP_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+			pbpctl_dev->bp_status_un = 0;
+			return BP_OK;
+		}
+
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			write_data(pbpctl_dev, STD_NIC_ON);
+			msec_delay_bp(BYPASS_CAP_DELAY);
+			return BP_OK;
+
+		}
+
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			wdt_off(pbpctl_dev);
+
+			if (pbpctl_dev->bp_caps & BP_CAP) {
+				write_data(pbpctl_dev, BYPASS_OFF);
+				msec_delay_bp(LATCH_DELAY);
+			}
+
+			if (pbpctl_dev->bp_caps & TAP_CAP) {
+				write_data(pbpctl_dev, TAP_OFF);
+				msec_delay_bp(LATCH_DELAY);
+			}
+
+			write_data(pbpctl_dev, NORMAL_STATE_PWRON);
+			if (pbpctl_dev->bp_ext_ver == PXG2BPI_VER)
+				msec_delay_bp(DFLT_PWRON_DELAY);
+			else
+				msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+
+			if (pbpctl_dev->bp_caps & BP_DIS_CAP) {
+				write_data(pbpctl_dev, DIS_BYPASS_CAP);
+				msec_delay_bp(BYPASS_CAP_DELAY);
+			}
+
+			if (pbpctl_dev->bp_caps & TAP_DIS_CAP) {
+				write_data(pbpctl_dev, DIS_TAP_CAP);
+				msec_delay_bp(BYPASS_CAP_DELAY);
+
+			}
+			return 0;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int std_nic_off(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & STD_NIC_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			write_data_int(pbpctl_dev, PWROFF_BYPASS_ON_INT);
+			msec_delay_bp(BYPASS_DELAY_INT);
+			return BP_OK;
+		}
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			write_data(pbpctl_dev, STD_NIC_OFF);
+			msec_delay_bp(BYPASS_CAP_DELAY);
+			return BP_OK;
+
+		}
+
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+
+			if (pbpctl_dev->bp_caps & TAP_PWUP_CTL_CAP) {
+				write_data(pbpctl_dev, TAP_STATE_PWRON);
+				msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+			}
+
+			if (pbpctl_dev->bp_caps & BP_PWUP_CTL_CAP) {
+				write_data(pbpctl_dev, BYPASS_STATE_PWRON);
+				if (pbpctl_dev->bp_ext_ver > PXG2BPI_VER)
+					msec_delay_bp(LATCH_DELAY +
+						      EEPROM_WR_DELAY);
+				else
+					msec_delay_bp(DFLT_PWRON_DELAY);
+			}
+
+			if (pbpctl_dev->bp_caps & TAP_DIS_CAP) {
+				write_data(pbpctl_dev, EN_TAP_CAP);
+				msec_delay_bp(BYPASS_CAP_DELAY);
+			}
+			if (pbpctl_dev->bp_caps & DISC_DIS_CAP) {
+				write_data(pbpctl_dev, EN_DISC_CAP);
+				msec_delay_bp(BYPASS_CAP_DELAY);
+			}
+
+			if (pbpctl_dev->bp_caps & BP_DIS_CAP) {
+				write_data(pbpctl_dev, EN_BYPASS_CAP);
+				msec_delay_bp(BYPASS_CAP_DELAY);
+			}
+
+			return 0;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int wdt_time_left(bpctl_dev_t *pbpctl_dev)
+{
+
+	/* unsigned long curr_time=((long long)(jiffies*1000))/HZ, delta_time=0,wdt_on_time=((long long)(pbpctl_dev->bypass_wdt_on_time*1000))/HZ; */
+	unsigned long curr_time = jiffies, delta_time = 0, wdt_on_time =
+	    pbpctl_dev->bypass_wdt_on_time, delta_time_msec = 0;
+	int time_left = 0;
+
+	switch (pbpctl_dev->wdt_status) {
+	case WDT_STATUS_DIS:
+		time_left = 0;
+		break;
+	case WDT_STATUS_EN:
+		delta_time =
+		    (curr_time >=
+		     wdt_on_time) ? (curr_time - wdt_on_time) : (~wdt_on_time +
+								 curr_time);
+		delta_time_msec = jiffies_to_msecs(delta_time);
+		time_left = pbpctl_dev->bypass_timer_interval - delta_time_msec;
+		if (time_left < 0) {
+			time_left = -1;
+			pbpctl_dev->wdt_status = WDT_STATUS_EXP;
+		}
+		break;
+	case WDT_STATUS_EXP:
+		time_left = -1;
+		break;
+	}
+
+	return time_left;
+}
+
+static int wdt_timer(bpctl_dev_t *pbpctl_dev, int *time_left)
+{
+	int ret = 0;
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		{
+			if (pbpctl_dev->wdt_status == WDT_STATUS_UNKNOWN)
+				ret = BP_NOT_CAP;
+			else
+				*time_left = wdt_time_left(pbpctl_dev);
+		}
+
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+static int wdt_timer_reload(bpctl_dev_t *pbpctl_dev)
+{
+
+	int ret = 0;
+
+	if ((pbpctl_dev->bp_caps & WD_CTL_CAP) &&
+	    (pbpctl_dev->wdt_status != WDT_STATUS_UNKNOWN)) {
+		if (pbpctl_dev->wdt_status == WDT_STATUS_DIS)
+			return 0;
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER)
+			ret = wdt_pulse(pbpctl_dev);
+		else if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+			ret = wdt_pulse_int(pbpctl_dev);
+		else
+			ret = send_wdt_pulse(pbpctl_dev);
+		/* if (ret==-1)
+		    mod_timer(&pbpctl_dev->bp_timer, jiffies+1);*/
+		return 1;
+	}
+	return BP_NOT_CAP;
+}
+
+static void wd_reset_timer(unsigned long param)
+{
+	bpctl_dev_t *pbpctl_dev = (bpctl_dev_t *) param;
+#ifdef BP_SELF_TEST
+	struct sk_buff *skb_tmp;
+#endif
+
+	if ((pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) &&
+	    ((atomic_read(&pbpctl_dev->wdt_busy)) == 1)) {
+		mod_timer(&pbpctl_dev->bp_timer, jiffies + 1);
+		return;
+	}
+#ifdef BP_SELF_TEST
+
+	if (pbpctl_dev->bp_self_test_flag == 1) {
+		skb_tmp = dev_alloc_skb(BPTEST_DATA_LEN + 2);
+		if ((skb_tmp) && (pbpctl_dev->ndev) && (pbpctl_dev->bp_tx_data)) {
+			memcpy(skb_put(skb_tmp, BPTEST_DATA_LEN),
+			       pbpctl_dev->bp_tx_data, BPTEST_DATA_LEN);
+			skb_tmp->dev = pbpctl_dev->ndev;
+			skb_tmp->protocol =
+			    eth_type_trans(skb_tmp, pbpctl_dev->ndev);
+			skb_tmp->ip_summed = CHECKSUM_UNNECESSARY;
+			netif_receive_skb(skb_tmp);
+			goto bp_timer_reload;
+			return;
+		}
+	}
+#endif
+
+	wdt_timer_reload(pbpctl_dev);
+#ifdef BP_SELF_TEST
+ bp_timer_reload:
+#endif
+	if (pbpctl_dev->reset_time) {
+		mod_timer(&pbpctl_dev->bp_timer,
+			  jiffies + (HZ * pbpctl_dev->reset_time) / 1000);
+	}
+}
+
+/*WAIT_AT_PWRUP 0x80   */
+int bp_wait_at_pwup_en(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
+			write_data(pbpctl_dev, BP_WAIT_AT_PWUP_EN);
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+/*DIS_WAIT_AT_PWRUP       0x81 */
+int bp_wait_at_pwup_dis(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+
+		if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
+			write_data(pbpctl_dev, BP_WAIT_AT_PWUP_DIS);
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+/*EN_HW_RESET  0x82   */
+
+int bp_hw_reset_en(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
+			write_data(pbpctl_dev, BP_HW_RESET_EN);
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+/*DIS_HW_RESET             0x83   */
+
+int bp_hw_reset_dis(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
+			write_data(pbpctl_dev, BP_HW_RESET_DIS);
+			msec_delay_bp(LATCH_DELAY + EEPROM_WR_DELAY);
+
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+
+int wdt_exp_mode(bpctl_dev_t *pbpctl_dev, int mode)
+{
+	uint32_t status_reg = 0, status_reg1 = 0;
+
+	if ((pbpctl_dev->bp_caps & (TAP_STATUS_CAP | DISC_CAP)) &&
+	    (pbpctl_dev->bp_caps & BP_CAP)) {
+		if (pbpctl_dev->bp_ext_ver >= PXE2TBPI_VER) {
+
+			if ((pbpctl_dev->bp_ext_ver >= 0x8) &&
+			    (mode == 2) && (pbpctl_dev->bp_caps & DISC_CAP)) {
+				status_reg1 =
+				    read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR);
+				if (!(status_reg1 & WDTE_DISC_BPN_MASK))
+					write_reg(pbpctl_dev,
+						  status_reg1 |
+						  WDTE_DISC_BPN_MASK,
+						  STATUS_DISC_REG_ADDR);
+				return BP_OK;
+			}
+		}
+		status_reg = read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR);
+
+		if ((mode == 0) && (pbpctl_dev->bp_caps & BP_CAP)) {
+			if (pbpctl_dev->bp_ext_ver >= 0x8) {
+				status_reg1 =
+				    read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR);
+				if (status_reg1 & WDTE_DISC_BPN_MASK)
+					write_reg(pbpctl_dev,
+						  status_reg1 &
+						  ~WDTE_DISC_BPN_MASK,
+						  STATUS_DISC_REG_ADDR);
+			}
+			if (status_reg & WDTE_TAP_BPN_MASK)
+				write_reg(pbpctl_dev,
+					  status_reg & ~WDTE_TAP_BPN_MASK,
+					  STATUS_TAP_REG_ADDR);
+			return BP_OK;
+
+		} else if ((mode == 1) && (pbpctl_dev->bp_caps & TAP_CAP)) {
+			if (!(status_reg & WDTE_TAP_BPN_MASK))
+				write_reg(pbpctl_dev,
+					  status_reg | WDTE_TAP_BPN_MASK,
+					  STATUS_TAP_REG_ADDR);
+			/*else return BP_NOT_CAP; */
+			return BP_OK;
+		}
+
+	}
+	return BP_NOT_CAP;
+}
+
+int bypass_fw_ver(bpctl_dev_t *pbpctl_dev)
+{
+	if (is_bypass_fn(pbpctl_dev))
+		return read_reg(pbpctl_dev, VER_REG_ADDR);
+	else
+		return BP_NOT_CAP;
+}
+
+int bypass_sign_check(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (is_bypass_fn(pbpctl_dev))
+		return (((read_reg(pbpctl_dev, PIC_SIGN_REG_ADDR)) ==
+			 PIC_SIGN_VALUE) ? 1 : 0);
+	else
+		return BP_NOT_CAP;
+}
+
+static int tx_status(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl = 0;
+	bpctl_dev_t *pbpctl_dev_m;
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+
+		ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
+		if (pbpctl_dev->bp_i80)
+			return ((ctrl & BPCTLI_CTRL_SWDPIN1) != 0 ? 0 : 1);
+		if (pbpctl_dev->bp_540) {
+			ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+
+			return ((ctrl & BP10G_SDP1_DATA) != 0 ? 0 : 1);
+		}
+
+	}
+
+	if (pbpctl_dev->bp_caps & TX_CTL_CAP) {
+		if (PEG5_IF_SERIES(pbpctl_dev->subdevice)) {
+			uint16_t mii_reg;
+			if (!
+			    (bp75_read_phy_reg
+			     (pbpctl_dev, BPCTLI_PHY_CONTROL, &mii_reg))) {
+				if (mii_reg & BPCTLI_MII_CR_POWER_DOWN)
+					return 0;
+
+				else
+					return 1;
+			}
+			return -1;
+		}
+
+		if (pbpctl_dev->bp_10g9) {
+			return ((BP10G_READ_REG(pbpctl_dev, ESDP) &
+				 BP10G_SDP3_DATA) != 0 ? 0 : 1);
+
+		} else if (pbpctl_dev->bp_fiber5) {
+			ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+			if (ctrl & BPCTLI_CTRL_EXT_SDP6_DATA)
+				return 0;
+			return 1;
+		} else if (pbpctl_dev->bp_10gb) {
+			ctrl = BP10GB_READ_REG(pbpctl_dev, MISC_REG_GPIO);
+			BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_GPIO,
+					 (ctrl | BP10GB_GPIO0_OE_P1) &
+					 ~(BP10GB_GPIO0_SET_P1 |
+					   BP10GB_GPIO0_CLR_P1));
+
+			if ((pbpctl_dev->func == 1) || (pbpctl_dev->func == 3))
+				return (((BP10GB_READ_REG
+					  (pbpctl_dev,
+					   MISC_REG_GPIO)) & BP10GB_GPIO0_P1) !=
+					0 ? 0 : 1);
+			else
+				return (((BP10GB_READ_REG
+					  (pbpctl_dev,
+					   MISC_REG_GPIO)) & BP10GB_GPIO0_P0) !=
+					0 ? 0 : 1);
+		}
+
+		if (!pbpctl_dev->bp_10g) {
+
+			ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
+			if (pbpctl_dev->bp_i80)
+				return ((ctrl & BPCTLI_CTRL_SWDPIN1) !=
+					0 ? 0 : 1);
+			if (pbpctl_dev->bp_540) {
+				ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
+
+				return ((ctrl & BP10G_SDP1_DATA) != 0 ? 0 : 1);
+			}
+
+			return ((ctrl & BPCTLI_CTRL_SWDPIN0) != 0 ? 0 : 1);
+		} else
+			return ((BP10G_READ_REG(pbpctl_dev, ESDP) &
+				 BP10G_SDP0_DATA) != 0 ? 0 : 1);
+
+	}
+	return BP_NOT_CAP;
+}
+
+static int bp_force_link_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (DBI_IF_SERIES(pbpctl_dev->subdevice)) {
+
+		if ((pbpctl_dev->bp_10g) || (pbpctl_dev->bp_10g9)) {
+			return ((BP10G_READ_REG(pbpctl_dev, ESDP) &
+				 BP10G_SDP1_DIR) != 0 ? 1 : 0);
+
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int bypass_from_last_read(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t ctrl_ext = 0;
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if ((pbpctl_dev->bp_caps & SW_CTL_CAP)
+	    && (pbpctl_dev_b = get_status_port_fn(pbpctl_dev))) {
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev_b, CTRL_EXT);
+		BPCTL_BP_WRITE_REG(pbpctl_dev_b, CTRL_EXT,
+				   (ctrl_ext & ~BPCTLI_CTRL_EXT_SDP7_DIR));
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev_b, CTRL_EXT);
+		if (ctrl_ext & BPCTLI_CTRL_EXT_SDP7_DATA)
+			return 0;
+		return 1;
+	} else
+		return BP_NOT_CAP;
+}
+
+int bypass_status_clear(bpctl_dev_t *pbpctl_dev)
+{
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if ((pbpctl_dev->bp_caps & SW_CTL_CAP)
+	    && (pbpctl_dev_b = get_status_port_fn(pbpctl_dev))) {
+
+		send_bypass_clear_pulse(pbpctl_dev_b, 1);
+		return 0;
+	} else
+		return BP_NOT_CAP;
+}
+
+int bypass_flag_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if ((pbpctl_dev->bp_caps & BP_CAP)) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+				  BYPASS_FLAG_MASK) ==
+				 BYPASS_FLAG_MASK) ? 1 : 0);
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int bypass_flag_status_clear(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & BP_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			uint32_t status_reg = 0;
+			status_reg = read_reg(pbpctl_dev, STATUS_REG_ADDR);
+			write_reg(pbpctl_dev, status_reg & ~BYPASS_FLAG_MASK,
+				  STATUS_REG_ADDR);
+			return 0;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int bypass_change_status(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & BP_STATUS_CHANGE_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			ret = bypass_flag_status(pbpctl_dev);
+			bypass_flag_status_clear(pbpctl_dev);
+		} else if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			ret = bypass_flag_status(pbpctl_dev);
+			bypass_flag_status_clear(pbpctl_dev);
+		} else {
+			ret = bypass_from_last_read(pbpctl_dev);
+			bypass_status_clear(pbpctl_dev);
+		}
+	}
+	return ret;
+}
+
+int bypass_off_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & BP_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+				  BYPASS_OFF_MASK) == BYPASS_OFF_MASK) ? 1 : 0);
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+static int bypass_status(bpctl_dev_t *pbpctl_dev)
+{
+	u32 ctrl_ext = 0;
+	if (pbpctl_dev->bp_caps & BP_CAP) {
+
+		bpctl_dev_t *pbpctl_dev_b = NULL;
+
+		if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+			return BP_NOT_CAP;
+
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+
+			if (!pbpctl_dev->bp_status_un)
+				return (((BPCTL_READ_REG
+					  (pbpctl_dev_b,
+					   CTRL_EXT)) &
+					 BPCTLI_CTRL_EXT_SDP7_DATA) !=
+					0 ? 1 : 0);
+			else
+				return BP_NOT_CAP;
+		}
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+
+			if (pbpctl_dev->bp_10g9) {
+				ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, I2CCTL);
+				BP10G_WRITE_REG(pbpctl_dev_b, I2CCTL,
+						(ctrl_ext | BP10G_I2C_CLK_OUT));
+				return ((BP10G_READ_REG(pbpctl_dev_b, I2CCTL) &
+					 BP10G_I2C_CLK_IN) != 0 ? 0 : 1);
+
+			} else if (pbpctl_dev->bp_540) {
+				return (((BP10G_READ_REG(pbpctl_dev_b, ESDP)) &
+					 BP10G_SDP0_DATA) != 0 ? 0 : 1);
+			}
+
+			else if ((pbpctl_dev->bp_fiber5)
+				 || (pbpctl_dev->bp_i80)) {
+				return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+					 BPCTLI_CTRL_SWDPIN0) != 0 ? 0 : 1);
+			} else if (pbpctl_dev->bp_10gb) {
+				ctrl_ext =
+				    BP10GB_READ_REG(pbpctl_dev, MISC_REG_GPIO);
+				BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_GPIO,
+						 (ctrl_ext | BP10GB_GPIO3_OE_P0)
+						 & ~(BP10GB_GPIO3_SET_P0 |
+						     BP10GB_GPIO3_CLR_P0));
+
+				return (((BP10GB_READ_REG
+					  (pbpctl_dev,
+					   MISC_REG_GPIO)) & BP10GB_GPIO3_P0) !=
+					0 ? 0 : 1);
+			}
+
+			else if (!pbpctl_dev->bp_10g)
+				return (((BPCTL_READ_REG
+					  (pbpctl_dev_b,
+					   CTRL_EXT)) &
+					 BPCTLI_CTRL_EXT_SDP7_DATA) !=
+					0 ? 0 : 1);
+
+			else {
+				ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, EODSDP);
+				BP10G_WRITE_REG(pbpctl_dev_b, EODSDP,
+						(ctrl_ext |
+						 BP10G_SDP7_DATA_OUT));
+				return ((BP10G_READ_REG(pbpctl_dev_b, EODSDP) &
+					 BP10G_SDP7_DATA_IN) != 0 ? 0 : 1);
+			}
+
+		} else if (pbpctl_dev->media_type == bp_copper) {
+
+			return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+				 BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0);
+		} else {
+			if ((bypass_status_clear(pbpctl_dev)) >= 0)
+				return bypass_from_last_read(pbpctl_dev);
+		}
+
+	}
+	return BP_NOT_CAP;
+}
+
+int default_pwron_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_caps & BP_PWUP_CTL_CAP) {
+			if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+				return ((((read_reg
+					   (pbpctl_dev,
+					    STATUS_REG_ADDR)) & DFLT_PWRON_MASK)
+					 == DFLT_PWRON_MASK) ? 0 : 1);
+			}
+		}		/*else if ((!pbpctl_dev->bp_caps&BP_DIS_CAP)&&
+				   (pbpctl_dev->bp_caps&BP_PWUP_ON_CAP))
+				   return 1; */
+	}
+	return BP_NOT_CAP;
+}
+
+static int default_pwroff_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	/*if ((!pbpctl_dev->bp_caps&BP_DIS_CAP)&&
+	   (pbpctl_dev->bp_caps&BP_PWOFF_ON_CAP))
+	   return 1; */
+	if ((pbpctl_dev->bp_caps & SW_CTL_CAP)
+	    && (pbpctl_dev->bp_caps & BP_PWOFF_CTL_CAP)) {
+		return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+			  DFLT_PWROFF_MASK) == DFLT_PWROFF_MASK) ? 0 : 1);
+	}
+	return BP_NOT_CAP;
+}
+
+int dis_bypass_cap_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & BP_DIS_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+				  DIS_BYPASS_CAP_MASK) ==
+				 DIS_BYPASS_CAP_MASK) ? 1 : 0);
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int cmd_en_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+				  CMND_EN_MASK) == CMND_EN_MASK) ? 1 : 0);
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int wdt_en_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+				  WDT_EN_MASK) == WDT_EN_MASK) ? 1 : 0);
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int wdt_programmed(bpctl_dev_t *pbpctl_dev, int *timeout)
+{
+	int ret = 0;
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			if ((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+			    WDT_EN_MASK) {
+				u8 wdt_val;
+				wdt_val = read_reg(pbpctl_dev, WDT_REG_ADDR);
+				*timeout = (1 << wdt_val) * 100;
+			} else
+				*timeout = 0;
+		} else {
+			int curr_wdt_status = pbpctl_dev->wdt_status;
+			if (curr_wdt_status == WDT_STATUS_UNKNOWN)
+				*timeout = -1;
+			else
+				*timeout =
+				    curr_wdt_status ==
+				    0 ? 0 : pbpctl_dev->bypass_timer_interval;
+		};
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+int bypass_support(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER) {
+			ret =
+			    ((((read_reg(pbpctl_dev, PRODUCT_CAP_REG_ADDR)) &
+			       BYPASS_SUPPORT_MASK) ==
+			      BYPASS_SUPPORT_MASK) ? 1 : 0);
+		} else if (pbpctl_dev->bp_ext_ver == PXG2BPI_VER)
+			ret = 1;
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+int tap_support(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER) {
+			ret =
+			    ((((read_reg(pbpctl_dev, PRODUCT_CAP_REG_ADDR)) &
+			       TAP_SUPPORT_MASK) == TAP_SUPPORT_MASK) ? 1 : 0);
+		} else if (pbpctl_dev->bp_ext_ver == PXG2BPI_VER)
+			ret = 0;
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+int normal_support(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER) {
+			ret =
+			    ((((read_reg(pbpctl_dev, PRODUCT_CAP_REG_ADDR)) &
+			       NORMAL_UNSUPPORT_MASK) ==
+			      NORMAL_UNSUPPORT_MASK) ? 0 : 1);
+		} else
+			ret = 1;
+	};
+	return ret;
+}
+
+int get_bp_prod_caps(bpctl_dev_t *pbpctl_dev)
+{
+	if ((pbpctl_dev->bp_caps & SW_CTL_CAP) &&
+	    (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER))
+		return read_reg(pbpctl_dev, PRODUCT_CAP_REG_ADDR);
+	return BP_NOT_CAP;
+
+}
+
+int tap_flag_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & TAP_STATUS_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  TAP_FLAG_MASK) == TAP_FLAG_MASK) ? 1 : 0);
+
+	}
+	return BP_NOT_CAP;
+}
+
+int tap_flag_status_clear(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t status_reg = 0;
+	if (pbpctl_dev->bp_caps & TAP_STATUS_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER) {
+			status_reg = read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR);
+			write_reg(pbpctl_dev, status_reg & ~TAP_FLAG_MASK,
+				  STATUS_TAP_REG_ADDR);
+			return 0;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int tap_change_status(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER) {
+		if (pbpctl_dev->bp_caps & TAP_CAP) {
+			if (pbpctl_dev->bp_caps & BP_CAP) {
+				ret = tap_flag_status(pbpctl_dev);
+				tap_flag_status_clear(pbpctl_dev);
+			} else {
+				ret = bypass_from_last_read(pbpctl_dev);
+				bypass_status_clear(pbpctl_dev);
+			}
+		}
+	}
+	return ret;
+}
+
+int tap_off_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & TAP_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  TAP_OFF_MASK) == TAP_OFF_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+int tap_status(bpctl_dev_t *pbpctl_dev)
+{
+	u32 ctrl_ext = 0;
+
+	if (pbpctl_dev->bp_caps & TAP_CAP) {
+		bpctl_dev_t *pbpctl_dev_b = NULL;
+
+		if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+			return BP_NOT_CAP;
+
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			if (!pbpctl_dev->bp_10g)
+				return (((BPCTL_READ_REG
+					  (pbpctl_dev_b,
+					   CTRL_EXT)) &
+					 BPCTLI_CTRL_EXT_SDP6_DATA) !=
+					0 ? 0 : 1);
+			else {
+				ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, EODSDP);
+				BP10G_WRITE_REG(pbpctl_dev_b, EODSDP,
+						(ctrl_ext |
+						 BP10G_SDP6_DATA_OUT));
+				return ((BP10G_READ_REG(pbpctl_dev_b, EODSDP) &
+					 BP10G_SDP6_DATA_IN) != 0 ? 0 : 1);
+			}
+
+		} else if (pbpctl_dev->media_type == bp_copper)
+			return (((BPCTL_READ_REG(pbpctl_dev, CTRL)) &
+				 BPCTLI_CTRL_SWDPIN0) != 0 ? 1 : 0);
+		else {
+			if ((bypass_status_clear(pbpctl_dev)) >= 0)
+				return bypass_from_last_read(pbpctl_dev);
+		}
+
+	}
+	return BP_NOT_CAP;
+}
+
+int default_pwron_tap_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & TAP_PWUP_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  DFLT_PWRON_TAP_MASK) ==
+				 DFLT_PWRON_TAP_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+int dis_tap_cap_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & TAP_PWUP_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER)
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  DIS_TAP_CAP_MASK) ==
+				 DIS_TAP_CAP_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+int disc_flag_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & DISC_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8)
+			return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+				  DISC_FLAG_MASK) == DISC_FLAG_MASK) ? 1 : 0);
+
+	}
+	return BP_NOT_CAP;
+}
+
+int disc_flag_status_clear(bpctl_dev_t *pbpctl_dev)
+{
+	uint32_t status_reg = 0;
+	if (pbpctl_dev->bp_caps & DISC_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8) {
+			status_reg = read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR);
+			write_reg(pbpctl_dev, status_reg & ~DISC_FLAG_MASK,
+				  STATUS_DISC_REG_ADDR);
+			return BP_OK;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int disc_change_status(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	if (pbpctl_dev->bp_caps & DISC_CAP) {
+		ret = disc_flag_status(pbpctl_dev);
+		disc_flag_status_clear(pbpctl_dev);
+		return ret;
+	}
+	return BP_NOT_CAP;
+}
+
+int disc_off_status(bpctl_dev_t *pbpctl_dev)
+{
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+	u32 ctrl_ext = 0;
+
+	if (pbpctl_dev->bp_caps & DISC_CAP) {
+		if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+			return BP_NOT_CAP;
+		if (DISCF_IF_SERIES(pbpctl_dev->subdevice))
+			return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+				  DISC_OFF_MASK) == DISC_OFF_MASK) ? 1 : 0);
+
+		if (pbpctl_dev->bp_i80) {
+			return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL_EXT)) &
+				 BPCTLI_CTRL_EXT_SDP6_DATA) != 0 ? 1 : 0);
+
+		}
+		if (pbpctl_dev->bp_540) {
+			ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, ESDP);
+			return ((BP10G_READ_REG(pbpctl_dev_b, ESDP) &
+				 BP10G_SDP2_DATA) != 0 ? 1 : 0);
+
+		}
+		if (pbpctl_dev->media_type == bp_copper) {
+
+#if 0
+			return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+				  DISC_OFF_MASK) == DISC_OFF_MASK) ? 1 : 0);
+#endif
+			if (!pbpctl_dev->bp_10g)
+				return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+					 BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0);
+			else
+				return ((BP10G_READ_REG(pbpctl_dev_b, ESDP) &
+					 BP10G_SDP1_DATA) != 0 ? 1 : 0);
+
+		} else {
+
+			if (pbpctl_dev->bp_10g9) {
+				ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, I2CCTL);
+				BP10G_WRITE_REG(pbpctl_dev_b, I2CCTL,
+						(ctrl_ext |
+						 BP10G_I2C_DATA_OUT));
+				return ((BP10G_READ_REG(pbpctl_dev_b, I2CCTL) &
+					 BP10G_I2C_DATA_IN) != 0 ? 1 : 0);
+
+			} else if (pbpctl_dev->bp_fiber5) {
+				return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+					 BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0);
+			} else if (pbpctl_dev->bp_10gb) {
+				ctrl_ext =
+				    BP10GB_READ_REG(pbpctl_dev, MISC_REG_GPIO);
+				BP10GB_WRITE_REG(pbpctl_dev, MISC_REG_GPIO,
+						 (ctrl_ext | BP10GB_GPIO3_OE_P1)
+						 & ~(BP10GB_GPIO3_SET_P1 |
+						     BP10GB_GPIO3_CLR_P1));
+
+				return (((BP10GB_READ_REG
+					  (pbpctl_dev,
+					   MISC_REG_GPIO)) & BP10GB_GPIO3_P1) !=
+					0 ? 1 : 0);
+			}
+			if (!pbpctl_dev->bp_10g) {
+
+				return (((BPCTL_READ_REG
+					  (pbpctl_dev_b,
+					   CTRL_EXT)) &
+					 BPCTLI_CTRL_EXT_SDP6_DATA) !=
+					0 ? 1 : 0);
+			} else {
+				ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, EODSDP);
+				BP10G_WRITE_REG(pbpctl_dev_b, EODSDP,
+						(ctrl_ext |
+						 BP10G_SDP6_DATA_OUT));
+				return (((BP10G_READ_REG(pbpctl_dev_b, EODSDP))
+					 & BP10G_SDP6_DATA_IN) != 0 ? 1 : 0);
+			}
+
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+static int disc_status(bpctl_dev_t *pbpctl_dev)
+{
+	int ctrl = 0;
+	if (pbpctl_dev->bp_caps & DISC_CAP) {
+
+		if ((ctrl = disc_off_status(pbpctl_dev)) < 0)
+			return ctrl;
+		return ((ctrl == 0) ? 1 : 0);
+
+	}
+	return BP_NOT_CAP;
+}
+
+int default_pwron_disc_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & DISC_PWUP_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8)
+			return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+				  DFLT_PWRON_DISC_MASK) ==
+				 DFLT_PWRON_DISC_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+int dis_disc_cap_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & DIS_DISC_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8)
+			return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+				  DIS_DISC_CAP_MASK) ==
+				 DIS_DISC_CAP_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+int disc_port_status(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	bpctl_dev_t *pbpctl_dev_m;
+
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		if (is_bypass_fn(pbpctl_dev) == 1) {
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  TX_DISA_MASK) == TX_DISA_MASK) ? 1 : 0);
+		} else
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  TX_DISB_MASK) == TX_DISB_MASK) ? 1 : 0);
+
+	}
+	return ret;
+}
+
+int default_pwron_disc_port_status(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	bpctl_dev_t *pbpctl_dev_m;
+
+	if ((is_bypass_fn(pbpctl_dev)) == 1)
+		pbpctl_dev_m = pbpctl_dev;
+	else
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m == NULL)
+		return BP_NOT_CAP;
+
+	if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
+		if (is_bypass_fn(pbpctl_dev) == 1)
+			return ret;
+		/*  return((((read_reg(pbpctl_dev,STATUS_TAP_REG_ADDR)) & TX_DISA_MASK)==TX_DISA_MASK)?1:0); */
+		else
+			return ret;
+		/*   return((((read_reg(pbpctl_dev,STATUS_TAP_REG_ADDR)) & TX_DISA_MASK)==TX_DISA_MASK)?1:0); */
+
+	}
+	return ret;
+}
+
+int wdt_exp_mode_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver <= PXG2BPI_VER)
+			return 0;	/* bypass mode */
+		else if (pbpctl_dev->bp_ext_ver == PXG2TBPI_VER)
+			return 1;	/* tap mode */
+		else if (pbpctl_dev->bp_ext_ver >= PXE2TBPI_VER) {
+			if (pbpctl_dev->bp_ext_ver >= 0x8) {
+				if (((read_reg
+				      (pbpctl_dev,
+				       STATUS_DISC_REG_ADDR)) &
+				     WDTE_DISC_BPN_MASK) == WDTE_DISC_BPN_MASK)
+					return 2;
+			}
+			return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+				  WDTE_TAP_BPN_MASK) ==
+				 WDTE_TAP_BPN_MASK) ? 1 : 0);
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+int tpl2_flag_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps_ex & TPL2_CAP_EX) {
+		return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+			  TPL2_FLAG_MASK) == TPL2_FLAG_MASK) ? 1 : 0);
+
+	}
+	return BP_NOT_CAP;
+}
+
+int tpl_hw_status(bpctl_dev_t *pbpctl_dev)
+{
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+		return BP_NOT_CAP;
+
+	if (TPL_IF_SERIES(pbpctl_dev->subdevice))
+		return (((BPCTL_READ_REG(pbpctl_dev, CTRL)) &
+			 BPCTLI_CTRL_SWDPIN0) != 0 ? 1 : 0);
+	return BP_NOT_CAP;
+}
+
+
+int bp_wait_at_pwup_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		if (pbpctl_dev->bp_ext_ver >= 0x8)
+			return ((((read_reg(pbpctl_dev, CONT_CONFIG_REG_ADDR)) &
+				  WAIT_AT_PWUP_MASK) ==
+				 WAIT_AT_PWUP_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+int bp_hw_reset_status(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+
+		if (pbpctl_dev->bp_ext_ver >= 0x8)
+			return ((((read_reg(pbpctl_dev, CONT_CONFIG_REG_ADDR)) &
+				  EN_HW_RESET_MASK) ==
+				 EN_HW_RESET_MASK) ? 1 : 0);
+	}
+	return BP_NOT_CAP;
+}
+
+
+int std_nic_status(bpctl_dev_t *pbpctl_dev)
+{
+	int status_val = 0;
+
+	if (pbpctl_dev->bp_caps & STD_NIC_CAP) {
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+			return BP_NOT_CAP;
+		if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
+			return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+				  STD_NIC_ON_MASK) == STD_NIC_ON_MASK) ? 1 : 0);
+		}
+
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			if (pbpctl_dev->bp_caps & BP_CAP) {
+				status_val =
+				    read_reg(pbpctl_dev, STATUS_REG_ADDR);
+				if (((!(status_val & WDT_EN_MASK))
+				     && ((status_val & STD_NIC_MASK) ==
+					 STD_NIC_MASK)))
+					status_val = 1;
+				else
+					return 0;
+			}
+			if (pbpctl_dev->bp_caps & TAP_CAP) {
+				status_val =
+				    read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR);
+				if ((status_val & STD_NIC_TAP_MASK) ==
+				    STD_NIC_TAP_MASK)
+					status_val = 1;
+				else
+					return 0;
+			}
+			if (pbpctl_dev->bp_caps & TAP_CAP) {
+				if ((disc_off_status(pbpctl_dev)))
+					status_val = 1;
+				else
+					return 0;
+			}
+
+			return status_val;
+		}
+	}
+	return BP_NOT_CAP;
+}
+
+/******************************************************/
+/**************SW_INIT*********************************/
+/******************************************************/
+void bypass_caps_init(bpctl_dev_t *pbpctl_dev)
+{
+	u_int32_t ctrl_ext = 0;
+	bpctl_dev_t *pbpctl_dev_m = NULL;
+
+#ifdef BYPASS_DEBUG
+	int ret = 0;
+	if (!(INTEL_IF_SERIES(adapter->bp_device_block.subdevice))) {
+		ret = read_reg(pbpctl_dev, VER_REG_ADDR);
+		printk("VER_REG reg1=%x\n", ret);
+		ret = read_reg(pbpctl_dev, PRODUCT_CAP_REG_ADDR);
+		printk("PRODUCT_CAP reg=%x\n", ret);
+		ret = read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR);
+		printk("STATUS_TAP reg1=%x\n", ret);
+		ret = read_reg(pbpctl_dev, 0x7);
+		printk("SIG_REG reg1=%x\n", ret);
+		ret = read_reg(pbpctl_dev, STATUS_REG_ADDR);
+		printk("STATUS_REG_ADDR=%x\n", ret);
+		ret = read_reg(pbpctl_dev, WDT_REG_ADDR);
+		printk("WDT_REG_ADDR=%x\n", ret);
+		ret = read_reg(pbpctl_dev, TMRL_REG_ADDR);
+		printk("TMRL_REG_ADDR=%x\n", ret);
+		ret = read_reg(pbpctl_dev, TMRH_REG_ADDR);
+		printk("TMRH_REG_ADDR=%x\n", ret);
+	}
+#endif
+	if ((pbpctl_dev->bp_fiber5) || (pbpctl_dev->bp_10g9)) {
+		pbpctl_dev->media_type = bp_fiber;
+	} else if (pbpctl_dev->bp_10gb) {
+		if (BP10GB_CX4_SERIES(pbpctl_dev->subdevice))
+			pbpctl_dev->media_type = bp_cx4;
+		else
+			pbpctl_dev->media_type = bp_fiber;
+
+	}
+
+	else if (pbpctl_dev->bp_540)
+		pbpctl_dev->media_type = bp_none;
+	else if (!pbpctl_dev->bp_10g) {
+
+		ctrl_ext = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
+		if ((ctrl_ext & BPCTLI_CTRL_EXT_LINK_MODE_MASK) == 0x0)
+			pbpctl_dev->media_type = bp_copper;
+		else
+			pbpctl_dev->media_type = bp_fiber;
+
+	} else {
+		if (BP10G_CX4_SERIES(pbpctl_dev->subdevice))
+			pbpctl_dev->media_type = bp_cx4;
+		else
+			pbpctl_dev->media_type = bp_fiber;
+	}
+
+	if (is_bypass_fn(pbpctl_dev)) {
+
+		pbpctl_dev->bp_caps |= BP_PWOFF_ON_CAP;
+		if (pbpctl_dev->media_type == bp_fiber)
+			pbpctl_dev->bp_caps |=
+			    (TX_CTL_CAP | TX_STATUS_CAP | TPL_CAP);
+
+		if (TPL_IF_SERIES(pbpctl_dev->subdevice)) {
+			pbpctl_dev->bp_caps |= TPL_CAP;
+		}
+
+		if (INTEL_IF_SERIES(pbpctl_dev->subdevice)) {
+			pbpctl_dev->bp_caps |=
+			    (BP_CAP | BP_STATUS_CAP | SW_CTL_CAP |
+			     BP_PWUP_ON_CAP | BP_PWUP_OFF_CAP | BP_PWOFF_OFF_CAP
+			     | WD_CTL_CAP | WD_STATUS_CAP | STD_NIC_CAP |
+			     WD_TIMEOUT_CAP);
+
+			pbpctl_dev->bp_ext_ver = OLD_IF_VER;
+			return;
+		}
+
+		if ((pbpctl_dev->bp_fw_ver == 0xff) &&
+		    OLD_IF_SERIES(pbpctl_dev->subdevice)) {
+
+			pbpctl_dev->bp_caps |=
+			    (BP_CAP | BP_STATUS_CAP | BP_STATUS_CHANGE_CAP |
+			     SW_CTL_CAP | BP_PWUP_ON_CAP | WD_CTL_CAP |
+			     WD_STATUS_CAP | WD_TIMEOUT_CAP);
+
+			pbpctl_dev->bp_ext_ver = OLD_IF_VER;
+			return;
+		}
+
+		else {
+			switch (pbpctl_dev->bp_fw_ver) {
+			case BP_FW_VER_A0:
+			case BP_FW_VER_A1:{
+					pbpctl_dev->bp_ext_ver =
+					    (pbpctl_dev->
+					     bp_fw_ver & EXT_VER_MASK);
+					break;
+				}
+			default:{
+					if ((bypass_sign_check(pbpctl_dev)) !=
+					    1) {
+						pbpctl_dev->bp_caps = 0;
+						return;
+					}
+					pbpctl_dev->bp_ext_ver =
+					    (pbpctl_dev->
+					     bp_fw_ver & EXT_VER_MASK);
+				}
+			}
+		}
+
+		if (pbpctl_dev->bp_ext_ver == PXG2BPI_VER)
+			pbpctl_dev->bp_caps |=
+			    (BP_CAP | BP_STATUS_CAP | BP_STATUS_CHANGE_CAP |
+			     SW_CTL_CAP | BP_DIS_CAP | BP_DIS_STATUS_CAP |
+			     BP_PWUP_ON_CAP | BP_PWUP_OFF_CAP | BP_PWUP_CTL_CAP
+			     | WD_CTL_CAP | STD_NIC_CAP | WD_STATUS_CAP |
+			     WD_TIMEOUT_CAP);
+		else if (pbpctl_dev->bp_ext_ver >= PXG2TBPI_VER) {
+			int cap_reg;
+
+			pbpctl_dev->bp_caps |=
+			    (SW_CTL_CAP | WD_CTL_CAP | WD_STATUS_CAP |
+			     WD_TIMEOUT_CAP);
+			cap_reg = get_bp_prod_caps(pbpctl_dev);
+
+			if ((cap_reg & NORMAL_UNSUPPORT_MASK) ==
+			    NORMAL_UNSUPPORT_MASK)
+				pbpctl_dev->bp_caps |= NIC_CAP_NEG;
+			else
+				pbpctl_dev->bp_caps |= STD_NIC_CAP;
+
+			if ((normal_support(pbpctl_dev)) == 1)
+
+				pbpctl_dev->bp_caps |= STD_NIC_CAP;
+
+			else
+				pbpctl_dev->bp_caps |= NIC_CAP_NEG;
+			if ((cap_reg & BYPASS_SUPPORT_MASK) ==
+			    BYPASS_SUPPORT_MASK) {
+				pbpctl_dev->bp_caps |=
+				    (BP_CAP | BP_STATUS_CAP |
+				     BP_STATUS_CHANGE_CAP | BP_DIS_CAP |
+				     BP_DIS_STATUS_CAP | BP_PWUP_ON_CAP |
+				     BP_PWUP_OFF_CAP | BP_PWUP_CTL_CAP);
+				if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER7)
+					pbpctl_dev->bp_caps |=
+					    BP_PWOFF_ON_CAP | BP_PWOFF_OFF_CAP |
+					    BP_PWOFF_CTL_CAP;
+			}
+			if ((cap_reg & TAP_SUPPORT_MASK) == TAP_SUPPORT_MASK) {
+				pbpctl_dev->bp_caps |=
+				    (TAP_CAP | TAP_STATUS_CAP |
+				     TAP_STATUS_CHANGE_CAP | TAP_DIS_CAP |
+				     TAP_DIS_STATUS_CAP | TAP_PWUP_ON_CAP |
+				     TAP_PWUP_OFF_CAP | TAP_PWUP_CTL_CAP);
+			}
+			if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
+				if ((cap_reg & DISC_SUPPORT_MASK) ==
+				    DISC_SUPPORT_MASK)
+					pbpctl_dev->bp_caps |=
+					    (DISC_CAP | DISC_DIS_CAP |
+					     DISC_PWUP_CTL_CAP);
+				if ((cap_reg & TPL2_SUPPORT_MASK) ==
+				    TPL2_SUPPORT_MASK) {
+					pbpctl_dev->bp_caps_ex |= TPL2_CAP_EX;
+					pbpctl_dev->bp_caps |= TPL_CAP;
+					pbpctl_dev->bp_tpl_flag =
+					    tpl2_flag_status(pbpctl_dev);
+				}
+
+			}
+
+			if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER9) {
+				if ((cap_reg & DISC_PORT_SUPPORT_MASK) ==
+				    DISC_PORT_SUPPORT_MASK) {
+					pbpctl_dev->bp_caps_ex |=
+					    DISC_PORT_CAP_EX;
+					pbpctl_dev->bp_caps |=
+					    (TX_CTL_CAP | TX_STATUS_CAP);
+				}
+
+			}
+
+		}
+		if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
+			if ((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+			    WDT_EN_MASK)
+				pbpctl_dev->wdt_status = WDT_STATUS_EN;
+			else
+				pbpctl_dev->wdt_status = WDT_STATUS_DIS;
+		}
+
+	} else if ((P2BPFI_IF_SERIES(pbpctl_dev->subdevice)) ||
+		   (PEGF5_IF_SERIES(pbpctl_dev->subdevice)) ||
+		   (PEGF80_IF_SERIES(pbpctl_dev->subdevice)) ||
+		   (BP10G9_IF_SERIES(pbpctl_dev->subdevice))) {
+		pbpctl_dev->bp_caps |= (TX_CTL_CAP | TX_STATUS_CAP);
+	}
+	if ((pbpctl_dev->subdevice & 0xa00) == 0xa00)
+		pbpctl_dev->bp_caps |= (TX_CTL_CAP | TX_STATUS_CAP);
+	if (PEG5_IF_SERIES(pbpctl_dev->subdevice))
+		pbpctl_dev->bp_caps |= (TX_CTL_CAP | TX_STATUS_CAP);
+
+	if (BP10GB_IF_SERIES(pbpctl_dev->subdevice)) {
+		pbpctl_dev->bp_caps &= ~(TX_CTL_CAP | TX_STATUS_CAP);
+	}
+	pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+	if (pbpctl_dev_m != NULL) {
+		int cap_reg = 0;
+		if (pbpctl_dev_m->bp_ext_ver >= 0x9) {
+			cap_reg = get_bp_prod_caps(pbpctl_dev_m);
+			if ((cap_reg & DISC_PORT_SUPPORT_MASK) ==
+			    DISC_PORT_SUPPORT_MASK)
+				pbpctl_dev->bp_caps |=
+				    (TX_CTL_CAP | TX_STATUS_CAP);
+			pbpctl_dev->bp_caps_ex |= DISC_PORT_CAP_EX;
+		}
+	}
+}
+
+int bypass_off_init(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+		return dis_bypass_cap(pbpctl_dev);
+	wdt_off(pbpctl_dev);
+	if (pbpctl_dev->bp_caps & BP_CAP)
+		bypass_off(pbpctl_dev);
+	if (pbpctl_dev->bp_caps & TAP_CAP)
+		tap_off(pbpctl_dev);
+	cmnd_off(pbpctl_dev);
+	return 0;
+}
+
+void remove_bypass_wd_auto(bpctl_dev_t *pbpctl_dev)
+{
+#ifdef BP_SELF_TEST
+	bpctl_dev_t *pbpctl_dev_sl = NULL;
+#endif
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+
+		del_timer_sync(&pbpctl_dev->bp_timer);
+#ifdef BP_SELF_TEST
+		pbpctl_dev_sl = get_status_port_fn(pbpctl_dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31))
+		if (pbpctl_dev_sl && (pbpctl_dev_sl->ndev)
+		    && (pbpctl_dev_sl->ndev->hard_start_xmit)
+		    && (pbpctl_dev_sl->hard_start_xmit_save)) {
+			rtnl_lock();
+			pbpctl_dev_sl->ndev->hard_start_xmit =
+			    pbpctl_dev_sl->hard_start_xmit_save;
+			rtnl_unlock();
+		}
+#else
+		if (pbpctl_dev_sl && (pbpctl_dev_sl->ndev)) {
+			if ((pbpctl_dev_sl->ndev->netdev_ops)
+			    && (pbpctl_dev_sl->old_ops)) {
+				rtnl_lock();
+				pbpctl_dev_sl->ndev->netdev_ops =
+				    pbpctl_dev_sl->old_ops;
+				pbpctl_dev_sl->old_ops = NULL;
+
+				rtnl_unlock();
+
+			}
+
+		}
+
+#endif
+#endif
+	}
+
+}
+
+int init_bypass_wd_auto(bpctl_dev_t *pbpctl_dev)
+{
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		init_timer(&pbpctl_dev->bp_timer);
+		pbpctl_dev->bp_timer.function = &wd_reset_timer;
+		pbpctl_dev->bp_timer.data = (unsigned long)pbpctl_dev;
+		return 1;
+	}
+	return BP_NOT_CAP;
+}
+
+#ifdef BP_SELF_TEST
+int bp_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	bpctl_dev_t *pbpctl_dev = NULL, *pbpctl_dev_m = NULL;
+	int idx_dev = 0;
+	struct ethhdr *eth = (struct ethhdr *)skb->data;
+
+	for (idx_dev = 0;
+	     ((bpctl_dev_arr[idx_dev].ndev != NULL) && (idx_dev < device_num));
+	     idx_dev++) {
+		if (bpctl_dev_arr[idx_dev].ndev == dev) {
+			pbpctl_dev = &bpctl_dev_arr[idx_dev];
+			break;
+		}
+	}
+	if (!pbpctl_dev)
+		return 1;
+	if ((htons(ETH_P_BPTEST) == eth->h_proto)) {
+
+		pbpctl_dev_m = get_master_port_fn(pbpctl_dev);
+		if (pbpctl_dev_m) {
+
+			if (bypass_status(pbpctl_dev_m)) {
+				cmnd_on(pbpctl_dev_m);
+				bypass_off(pbpctl_dev_m);
+				cmnd_off(pbpctl_dev_m);
+			}
+			wdt_timer_reload(pbpctl_dev_m);
+		}
+		dev_kfree_skb_irq(skb);
+		return 0;
+	}
+	return pbpctl_dev->hard_start_xmit_save(skb, dev);
+}
+#endif
+
+int set_bypass_wd_auto(bpctl_dev_t *pbpctl_dev, unsigned int param)
+{
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		if (pbpctl_dev->reset_time != param) {
+			if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+				pbpctl_dev->reset_time =
+				    (param <
+				     WDT_AUTO_MIN_INT) ? WDT_AUTO_MIN_INT :
+				    param;
+			else
+				pbpctl_dev->reset_time = param;
+			if (param)
+				mod_timer(&pbpctl_dev->bp_timer, jiffies);
+		}
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_bypass_wd_auto(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		return pbpctl_dev->reset_time;
+	}
+	return BP_NOT_CAP;
+}
+
+#ifdef  BP_SELF_TEST
+
+int set_bp_self_test(bpctl_dev_t *pbpctl_dev, unsigned int param)
+{
+	bpctl_dev_t *pbpctl_dev_sl = NULL;
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		pbpctl_dev->bp_self_test_flag = param == 0 ? 0 : 1;
+		pbpctl_dev_sl = get_status_port_fn(pbpctl_dev);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31))
+		if ((pbpctl_dev_sl->ndev) &&
+		    (pbpctl_dev_sl->ndev->hard_start_xmit)) {
+			rtnl_lock();
+			if (pbpctl_dev->bp_self_test_flag == 1) {
+
+				pbpctl_dev_sl->hard_start_xmit_save =
+				    pbpctl_dev_sl->ndev->hard_start_xmit;
+				pbpctl_dev_sl->ndev->hard_start_xmit =
+				    bp_hard_start_xmit;
+			} else if (pbpctl_dev_sl->hard_start_xmit_save) {
+				pbpctl_dev_sl->ndev->hard_start_xmit =
+				    pbpctl_dev_sl->hard_start_xmit_save;
+			}
+			rtnl_unlock();
+		}
+#else
+		if ((pbpctl_dev_sl->ndev) && (pbpctl_dev_sl->ndev->netdev_ops)) {
+			rtnl_lock();
+			if (pbpctl_dev->bp_self_test_flag == 1) {
+
+				pbpctl_dev_sl->old_ops =
+				    pbpctl_dev_sl->ndev->netdev_ops;
+				pbpctl_dev_sl->new_ops =
+				    *pbpctl_dev_sl->old_ops;
+				pbpctl_dev_sl->new_ops.ndo_start_xmit =
+				    bp_hard_start_xmit;
+				pbpctl_dev_sl->ndev->netdev_ops =
+				    &pbpctl_dev_sl->new_ops;
+
+			} else if (pbpctl_dev_sl->old_ops) {
+				pbpctl_dev_sl->ndev->netdev_ops =
+				    pbpctl_dev_sl->old_ops;
+				pbpctl_dev_sl->old_ops = NULL;
+			}
+			rtnl_unlock();
+		}
+#endif
+
+		set_bypass_wd_auto(pbpctl_dev, param);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_bp_self_test(bpctl_dev_t *pbpctl_dev)
+{
+
+	if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
+		if (pbpctl_dev->bp_self_test_flag == 1)
+			return pbpctl_dev->reset_time;
+		else
+			return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+#endif
+
+/**************************************************************/
+/************************* API ********************************/
+/**************************************************************/
+
+int is_bypass_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return (((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) ? 1 : 0);
+}
+
+int set_bypass_fn(bpctl_dev_t *pbpctl_dev, int bypass_mode)
+{
+	int ret = 0;
+
+	if (!(pbpctl_dev->bp_caps & BP_CAP))
+		return BP_NOT_CAP;
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (!bypass_mode)
+		ret = bypass_off(pbpctl_dev);
+	else
+		ret = bypass_on(pbpctl_dev);
+	cmnd_off(pbpctl_dev);
+
+	return ret;
+}
+
+int get_bypass_fn(bpctl_dev_t *pbpctl_dev)
+{
+	return bypass_status(pbpctl_dev);
+}
+
+int get_bypass_change_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return bypass_change_status(pbpctl_dev);
+}
+
+int set_dis_bypass_fn(bpctl_dev_t *pbpctl_dev, int dis_param)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!(pbpctl_dev->bp_caps & BP_DIS_CAP))
+		return BP_NOT_CAP;
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (dis_param)
+		ret = dis_bypass_cap(pbpctl_dev);
+	else
+		ret = en_bypass_cap(pbpctl_dev);
+	cmnd_off(pbpctl_dev);
+	return ret;
+}
+
+int get_dis_bypass_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return dis_bypass_cap_status(pbpctl_dev);
+}
+
+int set_bypass_pwoff_fn(bpctl_dev_t *pbpctl_dev, int bypass_mode)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!(pbpctl_dev->bp_caps & BP_PWOFF_CTL_CAP))
+		return BP_NOT_CAP;
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (bypass_mode)
+		ret = bypass_state_pwroff(pbpctl_dev);
+	else
+		ret = normal_state_pwroff(pbpctl_dev);
+	cmnd_off(pbpctl_dev);
+	return ret;
+}
+
+int get_bypass_pwoff_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return default_pwroff_status(pbpctl_dev);
+}
+
+int set_bypass_pwup_fn(bpctl_dev_t *pbpctl_dev, int bypass_mode)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!(pbpctl_dev->bp_caps & BP_PWUP_CTL_CAP))
+		return BP_NOT_CAP;
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (bypass_mode)
+		ret = bypass_state_pwron(pbpctl_dev);
+	else
+		ret = normal_state_pwron(pbpctl_dev);
+	cmnd_off(pbpctl_dev);
+	return ret;
+}
+
+int get_bypass_pwup_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return default_pwron_status(pbpctl_dev);
+}
+
+int set_bypass_wd_fn(bpctl_dev_t *pbpctl_dev, int timeout)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!(pbpctl_dev->bp_caps & WD_CTL_CAP))
+		return BP_NOT_CAP;
+
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (!timeout)
+		ret = wdt_off(pbpctl_dev);
+	else {
+		wdt_on(pbpctl_dev, timeout);
+		ret = pbpctl_dev->bypass_timer_interval;
+	}
+	cmnd_off(pbpctl_dev);
+	return ret;
+}
+
+int get_bypass_wd_fn(bpctl_dev_t *pbpctl_dev, int *timeout)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return wdt_programmed(pbpctl_dev, timeout);
+}
+
+int get_wd_expire_time_fn(bpctl_dev_t *pbpctl_dev, int *time_left)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return wdt_timer(pbpctl_dev, time_left);
+}
+
+int reset_bypass_wd_timer_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return wdt_timer_reload(pbpctl_dev);
+}
+
+int get_wd_set_caps_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int bp_status = 0;
+
+	unsigned int step_value = TIMEOUT_MAX_STEP + 1, bit_cnt = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
+		return BP_NOT_CAP;
+
+	while ((step_value >>= 1))
+		bit_cnt++;
+
+	if (is_bypass_fn(pbpctl_dev)) {
+		bp_status =
+		    WD_STEP_COUNT_MASK(bit_cnt) | WDT_STEP_TIME |
+		    WD_MIN_TIME_MASK(TIMEOUT_UNIT / 100);
+	} else
+		return -1;
+
+	return bp_status;
+}
+
+int set_std_nic_fn(bpctl_dev_t *pbpctl_dev, int nic_mode)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!(pbpctl_dev->bp_caps & STD_NIC_CAP))
+		return BP_NOT_CAP;
+
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	if (nic_mode)
+		ret = std_nic_on(pbpctl_dev);
+	else
+		ret = std_nic_off(pbpctl_dev);
+	cmnd_off(pbpctl_dev);
+	return ret;
+}
+
+int get_std_nic_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return std_nic_status(pbpctl_dev);
+}
+
+int set_tap_fn(bpctl_dev_t *pbpctl_dev, int tap_mode)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & TAP_CAP) && ((cmnd_on(pbpctl_dev)) >= 0)) {
+		if (!tap_mode)
+			tap_off(pbpctl_dev);
+		else
+			tap_on(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_tap_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return tap_status(pbpctl_dev);
+}
+
+int set_tap_pwup_fn(bpctl_dev_t *pbpctl_dev, int tap_mode)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & TAP_PWUP_CTL_CAP)
+	    && ((cmnd_on(pbpctl_dev)) >= 0)) {
+		if (tap_mode)
+			ret = tap_state_pwron(pbpctl_dev);
+		else
+			ret = normal_state_pwron(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+int get_tap_pwup_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((ret = default_pwron_tap_status(pbpctl_dev)) < 0)
+		return ret;
+	return ((ret == 0) ? 1 : 0);
+}
+
+int get_tap_change_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return tap_change_status(pbpctl_dev);
+}
+
+int set_dis_tap_fn(bpctl_dev_t *pbpctl_dev, int dis_param)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & TAP_DIS_CAP) && ((cmnd_on(pbpctl_dev)) >= 0)) {
+		if (dis_param)
+			ret = dis_tap_cap(pbpctl_dev);
+		else
+			ret = en_tap_cap(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+		return ret;
+	} else
+		return BP_NOT_CAP;
+}
+
+int get_dis_tap_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return dis_tap_cap_status(pbpctl_dev);
+}
+
+int set_disc_fn(bpctl_dev_t *pbpctl_dev, int disc_mode)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & DISC_CAP) && ((cmnd_on(pbpctl_dev)) >= 0)) {
+		if (!disc_mode)
+			disc_off(pbpctl_dev);
+		else
+			disc_on(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+
+		return BP_OK;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_disc_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	ret = disc_status(pbpctl_dev);
+
+	return ret;
+}
+
+int set_disc_pwup_fn(bpctl_dev_t *pbpctl_dev, int disc_mode)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & DISC_PWUP_CTL_CAP)
+	    && ((cmnd_on(pbpctl_dev)) >= 0)) {
+		if (disc_mode)
+			ret = disc_state_pwron(pbpctl_dev);
+		else
+			ret = normal_state_pwron(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+	} else
+		ret = BP_NOT_CAP;
+	return ret;
+}
+
+int get_disc_pwup_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	ret = default_pwron_disc_status(pbpctl_dev);
+	return (ret == 0 ? 1 : (ret < 0 ? BP_NOT_CAP : 0));
+}
+
+int get_disc_change_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	ret = disc_change_status(pbpctl_dev);
+	return ret;
+}
+
+int set_dis_disc_fn(bpctl_dev_t *pbpctl_dev, int dis_param)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & DISC_DIS_CAP)
+	    && ((cmnd_on(pbpctl_dev)) >= 0)) {
+		if (dis_param)
+			ret = dis_disc_cap(pbpctl_dev);
+		else
+			ret = en_disc_cap(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+		return ret;
+	} else
+		return BP_NOT_CAP;
+}
+
+int get_dis_disc_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	ret = dis_disc_cap_status(pbpctl_dev);
+
+	return ret;
+}
+
+int set_disc_port_fn(bpctl_dev_t *pbpctl_dev, int disc_mode)
+{
+	int ret = BP_NOT_CAP;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!disc_mode)
+		ret = disc_port_off(pbpctl_dev);
+	else
+		ret = disc_port_on(pbpctl_dev);
+
+	return ret;
+}
+
+int get_disc_port_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return disc_port_status(pbpctl_dev);
+}
+
+int set_disc_port_pwup_fn(bpctl_dev_t *pbpctl_dev, int disc_mode)
+{
+	int ret = BP_NOT_CAP;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (!disc_mode)
+		ret = normal_port_state_pwron(pbpctl_dev);
+	else
+		ret = disc_port_state_pwron(pbpctl_dev);
+
+	return ret;
+}
+
+int get_disc_port_pwup_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((ret = default_pwron_disc_port_status(pbpctl_dev)) < 0)
+		return ret;
+	return ((ret == 0) ? 1 : 0);
+}
+
+int get_wd_exp_mode_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return wdt_exp_mode_status(pbpctl_dev);
+}
+
+int set_wd_exp_mode_fn(bpctl_dev_t *pbpctl_dev, int param)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return wdt_exp_mode(pbpctl_dev, param);
+}
+
+int reset_cont_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((ret = cmnd_on(pbpctl_dev)) < 0)
+		return ret;
+	return reset_cont(pbpctl_dev);
+}
+
+int set_tx_fn(bpctl_dev_t *pbpctl_dev, int tx_state)
+{
+
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & TPL_CAP) &&
+	    (pbpctl_dev->bp_caps & SW_CTL_CAP)) {
+		if ((pbpctl_dev->bp_tpl_flag))
+			return BP_NOT_CAP;
+	} else if ((pbpctl_dev_b = get_master_port_fn(pbpctl_dev))) {
+		if ((pbpctl_dev_b->bp_caps & TPL_CAP) &&
+		    (pbpctl_dev_b->bp_tpl_flag))
+			return BP_NOT_CAP;
+	}
+	return set_tx(pbpctl_dev, tx_state);
+}
+
+int set_bp_force_link_fn(int dev_num, int tx_state)
+{
+	static bpctl_dev_t *bpctl_dev_curr;
+
+	if ((dev_num < 0) || (dev_num > device_num)
+	    || (bpctl_dev_arr[dev_num].pdev == NULL))
+		return -1;
+	bpctl_dev_curr = &bpctl_dev_arr[dev_num];
+
+	return set_bp_force_link(bpctl_dev_curr, tx_state);
+}
+
+int set_wd_autoreset_fn(bpctl_dev_t *pbpctl_dev, int param)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return set_bypass_wd_auto(pbpctl_dev, param);
+}
+
+int get_wd_autoreset_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return get_bypass_wd_auto(pbpctl_dev);
+}
+
+#ifdef BP_SELF_TEST
+int set_bp_self_test_fn(bpctl_dev_t *pbpctl_dev, int param)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return set_bp_self_test(pbpctl_dev, param);
+}
+
+int get_bp_self_test_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return get_bp_self_test(pbpctl_dev);
+}
+
+#endif
+
+int get_bypass_caps_fn(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	return pbpctl_dev->bp_caps;
+
+}
+
+int get_bypass_slave_fn(bpctl_dev_t *pbpctl_dev, bpctl_dev_t **pbpctl_dev_out)
+{
+	int idx_dev = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) {
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus)
+			    && (bpctl_dev_arr[idx_dev].slot ==
+				pbpctl_dev->slot)) {
+				if ((pbpctl_dev->func == 0)
+				    && (bpctl_dev_arr[idx_dev].func == 1)) {
+					*pbpctl_dev_out =
+					    &bpctl_dev_arr[idx_dev];
+					return 1;
+				}
+				if ((pbpctl_dev->func == 2) &&
+				    (bpctl_dev_arr[idx_dev].func == 3)) {
+					*pbpctl_dev_out =
+					    &bpctl_dev_arr[idx_dev];
+					return 1;
+				}
+			}
+		}
+		return -1;
+	} else
+		return 0;
+}
+
+int is_bypass(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2))
+		return 1;
+	else
+		return 0;
+}
+
+int get_tx_fn(bpctl_dev_t *pbpctl_dev)
+{
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+	if (!pbpctl_dev)
+		return -1;
+
+	if ((pbpctl_dev->bp_caps & TPL_CAP) &&
+	    (pbpctl_dev->bp_caps & SW_CTL_CAP)) {
+		if ((pbpctl_dev->bp_tpl_flag))
+			return BP_NOT_CAP;
+	} else if ((pbpctl_dev_b = get_master_port_fn(pbpctl_dev))) {
+		if ((pbpctl_dev_b->bp_caps & TPL_CAP) &&
+		    (pbpctl_dev_b->bp_tpl_flag))
+			return BP_NOT_CAP;
+	}
+	return tx_status(pbpctl_dev);
+}
+
+int get_bp_force_link_fn(int dev_num)
+{
+	static bpctl_dev_t *bpctl_dev_curr;
+
+	if ((dev_num < 0) || (dev_num > device_num)
+	    || (bpctl_dev_arr[dev_num].pdev == NULL))
+		return -1;
+	bpctl_dev_curr = &bpctl_dev_arr[dev_num];
+
+	return bp_force_link_status(bpctl_dev_curr);
+}
+
+static int get_bypass_link_status(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->media_type == bp_fiber)
+		return ((BPCTL_READ_REG(pbpctl_dev, CTRL) &
+			 BPCTLI_CTRL_SWDPIN1));
+	else
+		return ((BPCTL_READ_REG(pbpctl_dev, STATUS) &
+			 BPCTLI_STATUS_LU));
+
+}
+
+static void bp_tpl_timer_fn(unsigned long param)
+{
+	bpctl_dev_t *pbpctl_dev = (bpctl_dev_t *) param;
+	uint32_t link1, link2;
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+
+	if (!(pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+		return;
+
+	if (!pbpctl_dev->bp_tpl_flag) {
+		set_tx(pbpctl_dev_b, 1);
+		set_tx(pbpctl_dev, 1);
+		return;
+	}
+	link1 = get_bypass_link_status(pbpctl_dev);
+
+	link2 = get_bypass_link_status(pbpctl_dev_b);
+	if ((link1) && (tx_status(pbpctl_dev))) {
+		if ((!link2) && (tx_status(pbpctl_dev_b))) {
+			set_tx(pbpctl_dev, 0);
+		} else if (!tx_status(pbpctl_dev_b)) {
+			set_tx(pbpctl_dev_b, 1);
+		}
+	} else if ((!link1) && (tx_status(pbpctl_dev))) {
+		if ((link2) && (tx_status(pbpctl_dev_b))) {
+			set_tx(pbpctl_dev_b, 0);
+		}
+	} else if ((link1) && (!tx_status(pbpctl_dev))) {
+		if ((link2) && (tx_status(pbpctl_dev_b))) {
+			set_tx(pbpctl_dev, 1);
+		}
+	} else if ((!link1) && (!tx_status(pbpctl_dev))) {
+		if ((link2) && (tx_status(pbpctl_dev_b))) {
+			set_tx(pbpctl_dev, 1);
+		}
+	}
+
+	mod_timer(&pbpctl_dev->bp_tpl_timer, jiffies + BP_LINK_MON_DELAY * HZ);
+}
+
+void remove_bypass_tpl_auto(bpctl_dev_t *pbpctl_dev)
+{
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+	if (!pbpctl_dev)
+		return;
+	pbpctl_dev_b = get_status_port_fn(pbpctl_dev);
+
+	if (pbpctl_dev->bp_caps & TPL_CAP) {
+		del_timer_sync(&pbpctl_dev->bp_tpl_timer);
+		pbpctl_dev->bp_tpl_flag = 0;
+		pbpctl_dev_b = get_status_port_fn(pbpctl_dev);
+		if (pbpctl_dev_b)
+			set_tx(pbpctl_dev_b, 1);
+		set_tx(pbpctl_dev, 1);
+	}
+	return;
+}
+
+int init_bypass_tpl_auto(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+	if (pbpctl_dev->bp_caps & TPL_CAP) {
+		init_timer(&pbpctl_dev->bp_tpl_timer);
+		pbpctl_dev->bp_tpl_timer.function = &bp_tpl_timer_fn;
+		pbpctl_dev->bp_tpl_timer.data = (unsigned long)pbpctl_dev;
+		return BP_OK;
+	}
+	return BP_NOT_CAP;
+}
+
+int set_bypass_tpl_auto(bpctl_dev_t *pbpctl_dev, unsigned int param)
+{
+	if (!pbpctl_dev)
+		return -1;
+	if (pbpctl_dev->bp_caps & TPL_CAP) {
+		if ((param) && (!pbpctl_dev->bp_tpl_flag)) {
+			pbpctl_dev->bp_tpl_flag = param;
+			mod_timer(&pbpctl_dev->bp_tpl_timer, jiffies + 1);
+			return BP_OK;
+		};
+		if ((!param) && (pbpctl_dev->bp_tpl_flag))
+			remove_bypass_tpl_auto(pbpctl_dev);
+
+		return BP_OK;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_bypass_tpl_auto(bpctl_dev_t *pbpctl_dev)
+{
+	if (!pbpctl_dev)
+		return -1;
+	if (pbpctl_dev->bp_caps & TPL_CAP) {
+		return pbpctl_dev->bp_tpl_flag;
+	}
+	return BP_NOT_CAP;
+}
+
+int set_tpl_fn(bpctl_dev_t *pbpctl_dev, int tpl_mode)
+{
+
+	bpctl_dev_t *pbpctl_dev_b = NULL;
+	if (!pbpctl_dev)
+		return -1;
+
+	pbpctl_dev_b = get_status_port_fn(pbpctl_dev);
+
+	if (pbpctl_dev->bp_caps & TPL_CAP) {
+		if (tpl_mode) {
+			if ((pbpctl_dev_b = get_status_port_fn(pbpctl_dev)))
+				set_tx(pbpctl_dev_b, 1);
+			set_tx(pbpctl_dev, 1);
+		}
+		if ((TPL_IF_SERIES(pbpctl_dev->subdevice)) ||
+		    (pbpctl_dev->bp_caps_ex & TPL2_CAP_EX)) {
+			pbpctl_dev->bp_tpl_flag = tpl_mode;
+			if (!tpl_mode)
+				tpl_hw_off(pbpctl_dev);
+			else
+				tpl_hw_on(pbpctl_dev);
+		} else
+			set_bypass_tpl_auto(pbpctl_dev, tpl_mode);
+		return 0;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_tpl_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = BP_NOT_CAP;
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->bp_caps & TPL_CAP) {
+		if (pbpctl_dev->bp_caps_ex & TPL2_CAP_EX)
+			return tpl2_flag_status(pbpctl_dev);
+		ret = pbpctl_dev->bp_tpl_flag;
+	}
+	return ret;
+}
+
+int set_bp_wait_at_pwup_fn(bpctl_dev_t *pbpctl_dev, int tap_mode)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		/* bp_lock(pbp_device_block); */
+		cmnd_on(pbpctl_dev);
+		if (!tap_mode)
+			bp_wait_at_pwup_dis(pbpctl_dev);
+		else
+			bp_wait_at_pwup_en(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+
+		/* bp_unlock(pbp_device_block); */
+		return BP_OK;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_bp_wait_at_pwup_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	/* bp_lock(pbp_device_block); */
+	ret = bp_wait_at_pwup_status(pbpctl_dev);
+	/* bp_unlock(pbp_device_block); */
+
+	return ret;
+}
+
+int set_bp_hw_reset_fn(bpctl_dev_t *pbpctl_dev, int tap_mode)
+{
+	if (!pbpctl_dev)
+		return -1;
+
+	if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
+		/*   bp_lock(pbp_device_block); */
+		cmnd_on(pbpctl_dev);
+
+		if (!tap_mode)
+			bp_hw_reset_dis(pbpctl_dev);
+		else
+			bp_hw_reset_en(pbpctl_dev);
+		cmnd_off(pbpctl_dev);
+		/*    bp_unlock(pbp_device_block); */
+		return BP_OK;
+	}
+	return BP_NOT_CAP;
+}
+
+int get_bp_hw_reset_fn(bpctl_dev_t *pbpctl_dev)
+{
+	int ret = 0;
+	if (!pbpctl_dev)
+		return -1;
+
+	/* bp_lock(pbp_device_block); */
+	ret = bp_hw_reset_status(pbpctl_dev);
+
+	/* bp_unlock(pbp_device_block); */
+
+	return ret;
+}
+
+
+int get_bypass_info_fn(bpctl_dev_t *pbpctl_dev, char *dev_name,
+		       char *add_param)
+{
+	if (!pbpctl_dev)
+		return -1;
+	if (!is_bypass_fn(pbpctl_dev))
+		return -1;
+	strcpy(dev_name, pbpctl_dev->name);
+	*add_param = pbpctl_dev->bp_fw_ver;
+	return 0;
+}
+
+int get_dev_idx_bsf(int bus, int slot, int func)
+{
+	int idx_dev = 0;
+	for (idx_dev = 0;
+	     ((bpctl_dev_arr[idx_dev].pdev != NULL) && (idx_dev < device_num));
+	     idx_dev++) {
+		if ((bus == bpctl_dev_arr[idx_dev].bus)
+		    && (slot == bpctl_dev_arr[idx_dev].slot)
+		    && (func == bpctl_dev_arr[idx_dev].func))
+
+			return idx_dev;
+	}
+	return -1;
+}
+
+static void str_low(char *str)
+{
+	int i;
+
+	for (i = 0; i < strlen(str); i++)
+		if ((str[i] >= 65) && (str[i] <= 90))
+			str[i] += 32;
+}
+
+static unsigned long str_to_hex(char *p)
+{
+	unsigned long hex = 0;
+	unsigned long length = strlen(p), shift = 0;
+	unsigned char dig = 0;
+
+	str_low(p);
+	length = strlen(p);
+
+	if (length == 0)
+		return 0;
+
+	do {
+		dig = p[--length];
+		dig = dig < 'a' ? (dig - '0') : (dig - 'a' + 0xa);
+		hex |= (dig << shift);
+		shift += 4;
+	} while (length);
+	return hex;
+}
+
+static int get_dev_idx(int ifindex)
+{
+	int idx_dev = 0;
+
+	for (idx_dev = 0;
+	     ((bpctl_dev_arr[idx_dev].pdev != NULL) && (idx_dev < device_num));
+	     idx_dev++) {
+		if (ifindex == bpctl_dev_arr[idx_dev].ifindex)
+			return idx_dev;
+	}
+
+	return -1;
+}
+
+static bpctl_dev_t *get_dev_idx_p(int ifindex)
+{
+	int idx_dev = 0;
+
+	for (idx_dev = 0;
+	     ((bpctl_dev_arr[idx_dev].pdev != NULL) && (idx_dev < device_num));
+	     idx_dev++) {
+		if (ifindex == bpctl_dev_arr[idx_dev].ifindex)
+			return &bpctl_dev_arr[idx_dev];
+	}
+
+	return NULL;
+}
+
+static void if_scan_init(void)
+{
+	int idx_dev = 0;
+	struct net_device *dev;
+	int ifindex;
+	/* rcu_read_lock(); */
+	/* rtnl_lock();     */
+	/* rcu_read_lock(); */
+#if 1
+#if (LINUX_VERSION_CODE >= 0x020618)
+	for_each_netdev(&init_net, dev)
+#elif (LINUX_VERSION_CODE >= 0x20616)
+	for_each_netdev(dev)
+#else
+	for (dev = dev_base; dev; dev = dev->next)
+#endif
+	{
+
+		struct ethtool_drvinfo drvinfo;
+		char cbuf[32];
+		char *buf = NULL;
+		char res[10];
+		int i = 0;
+		int bus = 0, slot = 0, func = 0;
+		ifindex = dev->ifindex;
+
+		memset(res, 0, 10);
+		memset(&drvinfo, 0, sizeof(struct ethtool_drvinfo));
+
+		if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
+			memset(&drvinfo, 0, sizeof(drvinfo));
+			dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
+		} else
+			continue;
+		if (!drvinfo.bus_info)
+			continue;
+		if (!strcmp(drvinfo.bus_info, "N/A"))
+			continue;
+		memcpy(&cbuf, drvinfo.bus_info, 32);
+		buf = &cbuf[0];
+
+		while (*buf++ != ':') ;
+		for (i = 0; i < 10; i++, buf++) {
+			if (*buf == ':')
+				break;
+			res[i] = *buf;
+
+		}
+		buf++;
+		bus = str_to_hex(res);
+		memset(res, 0, 10);
+
+		for (i = 0; i < 10; i++, buf++) {
+			if (*buf == '.')
+				break;
+			res[i] = *buf;
+
+		}
+		buf++;
+		slot = str_to_hex(res);
+		func = str_to_hex(buf);
+		idx_dev = get_dev_idx_bsf(bus, slot, func);
+
+		if (idx_dev != -1) {
+
+			bpctl_dev_arr[idx_dev].ifindex = ifindex;
+			bpctl_dev_arr[idx_dev].ndev = dev;
+
+		}
+
+	}
+#endif
+	/* rtnl_unlock();     */
+	/* rcu_read_unlock(); */
+
+}
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30))
+static int device_ioctl(struct inode *inode,	/* see include/linux/fs.h */
+			struct file *file,	/* ditto */
+			unsigned int ioctl_num,	/* number and param for ioctl */
+			unsigned long ioctl_param)
+#else
+static long device_ioctl(struct file *file,	/* ditto */
+			 unsigned int ioctl_num,	/* number and param for ioctl */
+			 unsigned long ioctl_param)
+#endif
+{
+	struct bpctl_cmd bpctl_cmd;
+	int dev_idx = 0;
+	bpctl_dev_t *pbpctl_dev_out;
+	void __user *argp = (void __user *)ioctl_param;
+	int ret = 0;
+	unsigned long flags;
+
+	static bpctl_dev_t *pbpctl_dev;
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30))
+	/* lock_kernel(); */
+#endif
+	lock_bpctl();
+	/* local_irq_save(flags); */
+	/* if(!spin_trylock_irqsave(&bpvm_lock)){
+	   local_irq_restore(flags);
+	   unlock_bpctl();
+	   unlock_kernel();
+	   return -1;
+	   } */
+	/* spin_lock_irqsave(&bpvm_lock, flags); */
+
+/*
+* Switch according to the ioctl called
+*/
+	if (ioctl_num == IOCTL_TX_MSG(IF_SCAN)) {
+		if_scan_init();
+		ret = SUCCESS;
+		goto bp_exit;
+	}
+	if (copy_from_user(&bpctl_cmd, argp, sizeof(struct bpctl_cmd))) {
+
+		ret = -EFAULT;
+		goto bp_exit;
+	}
+
+	if (ioctl_num == IOCTL_TX_MSG(GET_DEV_NUM)) {
+		bpctl_cmd.out_param[0] = device_num;
+		if (copy_to_user
+		    (argp, (void *)&bpctl_cmd, sizeof(struct bpctl_cmd))) {
+			ret = -EFAULT;
+			goto bp_exit;
+		}
+		ret = SUCCESS;
+		goto bp_exit;
+
+	}
+	/* lock_bpctl();      */
+	/* preempt_disable(); */
+	local_irq_save(flags);
+	if (!spin_trylock(&bpvm_lock)) {
+		local_irq_restore(flags);
+		unlock_bpctl();
+		return -1;
+	}
+
+/*    	preempt_disable();
+	rcu_read_lock();
+      	spin_lock_irqsave(&bpvm_lock, flags);
+*/
+	if ((bpctl_cmd.in_param[5]) ||
+	    (bpctl_cmd.in_param[6]) || (bpctl_cmd.in_param[7]))
+		dev_idx = get_dev_idx_bsf(bpctl_cmd.in_param[5],
+					  bpctl_cmd.in_param[6],
+					  bpctl_cmd.in_param[7]);
+	else if (bpctl_cmd.in_param[1] == 0)
+		dev_idx = bpctl_cmd.in_param[0];
+	else
+		dev_idx = get_dev_idx(bpctl_cmd.in_param[1]);
+
+	if (dev_idx < 0 || dev_idx > device_num) {
+		/* unlock_bpctl();
+		   preempt_enable(); */
+		ret = -EOPNOTSUPP;
+		/* preempt_enable();
+		   rcu_read_unlock();  */
+		spin_unlock_irqrestore(&bpvm_lock, flags);
+		goto bp_exit;
+	}
+
+	bpctl_cmd.out_param[0] = bpctl_dev_arr[dev_idx].bus;
+	bpctl_cmd.out_param[1] = bpctl_dev_arr[dev_idx].slot;
+	bpctl_cmd.out_param[2] = bpctl_dev_arr[dev_idx].func;
+	bpctl_cmd.out_param[3] = bpctl_dev_arr[dev_idx].ifindex;
+
+	if ((bpctl_dev_arr[dev_idx].bp_10gb)
+	    && (!(bpctl_dev_arr[dev_idx].ifindex))) {
+		printk("Please load network driver for %s adapter!\n",
+		       bpctl_dev_arr[dev_idx].name);
+		bpctl_cmd.status = -1;
+		ret = SUCCESS;
+		/* preempt_enable(); */
+		/* rcu_read_unlock(); */
+		spin_unlock_irqrestore(&bpvm_lock, flags);
+		goto bp_exit;
+
+	}
+	if ((bpctl_dev_arr[dev_idx].bp_10gb) && (bpctl_dev_arr[dev_idx].ndev)) {
+		if (!(bpctl_dev_arr[dev_idx].ndev->flags & IFF_UP)) {
+			if (!(bpctl_dev_arr[dev_idx].ndev->flags & IFF_UP)) {
+				printk
+				    ("Please bring up network interfaces for %s adapter!\n",
+				     bpctl_dev_arr[dev_idx].name);
+				bpctl_cmd.status = -1;
+				ret = SUCCESS;
+				/* preempt_enable(); */
+				/* rcu_read_unlock(); */
+				spin_unlock_irqrestore(&bpvm_lock, flags);
+				goto bp_exit;
+			}
+
+		}
+	}
+
+	if ((dev_idx < 0) || (dev_idx > device_num)
+	    || (bpctl_dev_arr[dev_idx].pdev == NULL)) {
+		bpctl_cmd.status = -1;
+		goto bpcmd_exit;
+	}
+
+	pbpctl_dev = &bpctl_dev_arr[dev_idx];
+
+	switch (ioctl_num) {
+	case IOCTL_TX_MSG(SET_BYPASS_PWOFF):
+		bpctl_cmd.status =
+		    set_bypass_pwoff_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS_PWOFF):
+		bpctl_cmd.status = get_bypass_pwoff_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_BYPASS_PWUP):
+		bpctl_cmd.status =
+		    set_bypass_pwup_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS_PWUP):
+		bpctl_cmd.status = get_bypass_pwup_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_BYPASS_WD):
+		bpctl_cmd.status =
+		    set_bypass_wd_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS_WD):
+		bpctl_cmd.status =
+		    get_bypass_wd_fn(pbpctl_dev, (int *)&(bpctl_cmd.data[0]));
+		break;
+
+	case IOCTL_TX_MSG(GET_WD_EXPIRE_TIME):
+		bpctl_cmd.status =
+		    get_wd_expire_time_fn(pbpctl_dev,
+					  (int *)&(bpctl_cmd.data[0]));
+		break;
+
+	case IOCTL_TX_MSG(RESET_BYPASS_WD_TIMER):
+		bpctl_cmd.status = reset_bypass_wd_timer_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(GET_WD_SET_CAPS):
+		bpctl_cmd.status = get_wd_set_caps_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_STD_NIC):
+		bpctl_cmd.status =
+		    set_std_nic_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_STD_NIC):
+		bpctl_cmd.status = get_std_nic_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_TAP):
+		bpctl_cmd.status =
+		    set_tap_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_TAP):
+		bpctl_cmd.status = get_tap_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(GET_TAP_CHANGE):
+		bpctl_cmd.status = get_tap_change_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_DIS_TAP):
+		bpctl_cmd.status =
+		    set_dis_tap_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_DIS_TAP):
+		bpctl_cmd.status = get_dis_tap_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_TAP_PWUP):
+		bpctl_cmd.status =
+		    set_tap_pwup_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_TAP_PWUP):
+		bpctl_cmd.status = get_tap_pwup_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_WD_EXP_MODE):
+		bpctl_cmd.status =
+		    set_wd_exp_mode_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_WD_EXP_MODE):
+		bpctl_cmd.status = get_wd_exp_mode_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(GET_DIS_BYPASS):
+		bpctl_cmd.status = get_dis_bypass_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_DIS_BYPASS):
+		bpctl_cmd.status =
+		    set_dis_bypass_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS_CHANGE):
+		bpctl_cmd.status = get_bypass_change_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS):
+		bpctl_cmd.status = get_bypass_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_BYPASS):
+		bpctl_cmd.status =
+		    set_bypass_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS_CAPS):
+		bpctl_cmd.status = get_bypass_caps_fn(pbpctl_dev);
+		/*preempt_enable(); */
+		/*rcu_read_unlock();*/
+		spin_unlock_irqrestore(&bpvm_lock, flags);
+		if (copy_to_user
+		    (argp, (void *)&bpctl_cmd, sizeof(struct bpctl_cmd))) {
+			/*unlock_bpctl();   */
+			/*preempt_enable(); */
+			ret = -EFAULT;
+			goto bp_exit;
+		}
+		goto bp_exit;
+
+	case IOCTL_TX_MSG(GET_BYPASS_SLAVE):
+		bpctl_cmd.status =
+		    get_bypass_slave_fn(pbpctl_dev, &pbpctl_dev_out);
+		if (bpctl_cmd.status == 1) {
+			bpctl_cmd.out_param[4] = pbpctl_dev_out->bus;
+			bpctl_cmd.out_param[5] = pbpctl_dev_out->slot;
+			bpctl_cmd.out_param[6] = pbpctl_dev_out->func;
+			bpctl_cmd.out_param[7] = pbpctl_dev_out->ifindex;
+		}
+		break;
+
+	case IOCTL_TX_MSG(IS_BYPASS):
+		bpctl_cmd.status = is_bypass(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_TX):
+		bpctl_cmd.status = set_tx_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+	case IOCTL_TX_MSG(GET_TX):
+		bpctl_cmd.status = get_tx_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_WD_AUTORESET):
+		bpctl_cmd.status =
+		    set_wd_autoreset_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+
+		break;
+	case IOCTL_TX_MSG(GET_WD_AUTORESET):
+
+		bpctl_cmd.status = get_wd_autoreset_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_DISC):
+		bpctl_cmd.status =
+		    set_disc_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+	case IOCTL_TX_MSG(GET_DISC):
+		bpctl_cmd.status = get_disc_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(GET_DISC_CHANGE):
+		bpctl_cmd.status = get_disc_change_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_DIS_DISC):
+		bpctl_cmd.status =
+		    set_dis_disc_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+	case IOCTL_TX_MSG(GET_DIS_DISC):
+		bpctl_cmd.status = get_dis_disc_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_DISC_PWUP):
+		bpctl_cmd.status =
+		    set_disc_pwup_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+	case IOCTL_TX_MSG(GET_DISC_PWUP):
+		bpctl_cmd.status = get_disc_pwup_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(GET_BYPASS_INFO):
+
+		bpctl_cmd.status =
+		    get_bypass_info_fn(pbpctl_dev, (char *)&bpctl_cmd.data,
+				       (char *)&bpctl_cmd.out_param[4]);
+		break;
+
+	case IOCTL_TX_MSG(SET_TPL):
+		bpctl_cmd.status =
+		    set_tpl_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_TPL):
+		bpctl_cmd.status = get_tpl_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_BP_WAIT_AT_PWUP):
+		bpctl_cmd.status =
+		    set_bp_wait_at_pwup_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BP_WAIT_AT_PWUP):
+		bpctl_cmd.status = get_bp_wait_at_pwup_fn(pbpctl_dev);
+		break;
+	case IOCTL_TX_MSG(SET_BP_HW_RESET):
+		bpctl_cmd.status =
+		    set_bp_hw_reset_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BP_HW_RESET):
+		bpctl_cmd.status = get_bp_hw_reset_fn(pbpctl_dev);
+		break;
+#ifdef BP_SELF_TEST
+	case IOCTL_TX_MSG(SET_BP_SELF_TEST):
+		bpctl_cmd.status =
+		    set_bp_self_test_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+
+		break;
+	case IOCTL_TX_MSG(GET_BP_SELF_TEST):
+		bpctl_cmd.status = get_bp_self_test_fn(pbpctl_dev);
+		break;
+
+#endif
+#if 0
+	case IOCTL_TX_MSG(SET_DISC_PORT):
+		bpctl_cmd.status =
+		    set_disc_port_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_DISC_PORT):
+		bpctl_cmd.status = get_disc_port_fn(pbpctl_dev);
+		break;
+
+	case IOCTL_TX_MSG(SET_DISC_PORT_PWUP):
+		bpctl_cmd.status =
+		    set_disc_port_pwup_fn(pbpctl_dev, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_DISC_PORT_PWUP):
+		bpctl_cmd.status = get_disc_port_pwup_fn(pbpctl_dev);
+		break;
+#endif
+	case IOCTL_TX_MSG(SET_BP_FORCE_LINK):
+		bpctl_cmd.status =
+		    set_bp_force_link_fn(dev_idx, bpctl_cmd.in_param[2]);
+		break;
+
+	case IOCTL_TX_MSG(GET_BP_FORCE_LINK):
+		bpctl_cmd.status = get_bp_force_link_fn(dev_idx);
+		break;
+
+	default:
+		/*    unlock_bpctl(); */
+
+		ret = -EOPNOTSUPP;
+		/* preempt_enable(); */
+		/* rcu_read_unlock();*/
+		spin_unlock_irqrestore(&bpvm_lock, flags);
+		goto bp_exit;
+	}
+	/* unlock_bpctl();   */
+	/* preempt_enable(); */
+ bpcmd_exit:
+	/* rcu_read_unlock(); */
+	spin_unlock_irqrestore(&bpvm_lock, flags);
+	if (copy_to_user(argp, (void *)&bpctl_cmd, sizeof(struct bpctl_cmd)))
+		ret = -EFAULT;
+	ret = SUCCESS;
+ bp_exit:
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30))
+	/* unlock_kernel(); */
+#endif
+	/* spin_unlock_irqrestore(&bpvm_lock, flags); */
+	unlock_bpctl();
+	/* unlock_kernel(); */
+	return ret;
+}
+
+struct file_operations Fops = {
+	.owner = THIS_MODULE,
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30))
+	.ioctl = device_ioctl,
+#else
+	.unlocked_ioctl = device_ioctl,
+#endif
+
+	.open = device_open,
+	.release = device_release,	/* a.k.a. close */
+};
+
+#ifndef PCI_DEVICE
+#define PCI_DEVICE(vend,dev) \
+	.vendor = (vend), .device = (dev), \
+	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
+#endif
+
+#define SILICOM_E1000BP_ETHERNET_DEVICE(device_id) {\
+	PCI_DEVICE(SILICOM_VID, device_id)}
+
+typedef enum {
+	PXG2BPFI,
+	PXG2BPFIL,
+	PXG2BPFILX,
+	PXG2BPFILLX,
+	PXGBPI,
+	PXGBPIG,
+	PXG2TBFI,
+	PXG4BPI,
+	PXG4BPFI,
+	PEG4BPI,
+	PEG2BPI,
+	PEG4BPIN,
+	PEG2BPFI,
+	PEG2BPFILX,
+	PMCXG2BPFI,
+	PMCXG2BPFIN,
+	PEG4BPII,
+	PEG4BPFII,
+	PXG4BPFILX,
+	PMCXG2BPIN,
+	PMCXG4BPIN,
+	PXG2BISC1,
+	PEG2TBFI,
+	PXG2TBI,
+	PXG4BPFID,
+	PEG4BPFI,
+	PEG4BPIPT,
+	PXG6BPI,
+	PEG4BPIL,
+	PMCXG2BPIN2,
+	PMCXG4BPIN2,
+	PMCX2BPI,
+	PEG2BPFID,
+	PEG2BPFIDLX,
+	PMCX4BPI,
+	MEG2BPFILN,
+	MEG2BPFINX,
+	PEG4BPFILX,
+	PE10G2BPISR,
+	PE10G2BPILR,
+	MHIO8AD,
+	PE10G2BPICX4,
+	PEG2BPI5,
+	PEG6BPI,
+	PEG4BPFI5,
+	PEG4BPFI5LX,
+	MEG2BPFILXLN,
+	PEG2BPIX1,
+	MEG2BPFILXNX,
+	XE10G2BPIT,
+	XE10G2BPICX4,
+	XE10G2BPISR,
+	XE10G2BPILR,
+	PEG4BPIIO,
+	XE10G2BPIXR,
+	PE10GDBISR,
+	PE10GDBILR,
+	PEG2BISC6,
+	PEG6BPIFC,
+	PE10G2BPTCX4,
+	PE10G2BPTSR,
+	PE10G2BPTLR,
+	PE10G2BPTT,
+	PEG4BPI6,
+	PEG4BPFI6,
+	PEG4BPFI6LX,
+	PEG4BPFI6ZX,
+	PEG2BPI6,
+	PEG2BPFI6,
+	PEG2BPFI6LX,
+	PEG2BPFI6ZX,
+	PEG2BPFI6FLXM,
+	PEG4BPI6FC,
+	PEG4BPFI6FC,
+	PEG4BPFI6FCLX,
+	PEG4BPFI6FCZX,
+	PEG6BPI6,
+	PEG2BPI6SC6,
+	MEG2BPI6,
+	XEG2BPI6,
+	MEG4BPI6,
+	PEG2BPFI5,
+	PEG2BPFI5LX,
+	PXEG4BPFI,
+	M1EG2BPI6,
+	M1EG2BPFI6,
+	M1EG2BPFI6LX,
+	M1EG2BPFI6ZX,
+	M1EG4BPI6,
+	M1EG4BPFI6,
+	M1EG4BPFI6LX,
+	M1EG4BPFI6ZX,
+	M1EG6BPI6,
+	M1E2G4BPi80,
+	M1E2G4BPFi80,
+	M1E2G4BPFi80LX,
+	M1E2G4BPFi80ZX,
+	PE210G2SPI9,
+	M1E10G2BPI9CX4,
+	M1E10G2BPI9SR,
+	M1E10G2BPI9LR,
+	M1E10G2BPI9T,
+	PE210G2BPI9CX4,
+	PE210G2BPI9SR,
+	PE210G2BPI9LR,
+	PE210G2BPI9T,
+	M2EG2BPFI6,
+	M2EG2BPFI6LX,
+	M2EG2BPFI6ZX,
+	M2EG4BPI6,
+	M2EG4BPFI6,
+	M2EG4BPFI6LX,
+	M2EG4BPFI6ZX,
+	M2EG6BPI6,
+	PEG2DBI6,
+	PEG2DBFI6,
+	PEG2DBFI6LX,
+	PEG2DBFI6ZX,
+	PE2G4BPi80,
+	PE2G4BPFi80,
+	PE2G4BPFi80LX,
+	PE2G4BPFi80ZX,
+	PE2G4BPi80L,
+	M6E2G8BPi80A,
+
+	PE2G2BPi35,
+	PAC1200BPi35,
+	PE2G2BPFi35,
+	PE2G2BPFi35LX,
+	PE2G2BPFi35ZX,
+	PE2G4BPi35,
+	PE2G4BPi35L,
+	PE2G4BPFi35,
+	PE2G4BPFi35LX,
+	PE2G4BPFi35ZX,
+
+	PE2G6BPi35,
+	PE2G6BPi35CX,
+
+	PE2G2BPi80,
+	PE2G2BPFi80,
+	PE2G2BPFi80LX,
+	PE2G2BPFi80ZX,
+	M2E10G2BPI9CX4,
+	M2E10G2BPI9SR,
+	M2E10G2BPI9LR,
+	M2E10G2BPI9T,
+	M6E2G8BPi80,
+	PE210G2DBi9SR,
+	PE210G2DBi9SRRB,
+	PE210G2DBi9LR,
+	PE210G2DBi9LRRB,
+	PE310G4DBi940SR,
+	PE310G4BPi9T,
+	PE310G4BPi9SR,
+	PE310G4BPi9LR,
+	PE210G2BPi40,
+} board_t;
+
+typedef struct _bpmod_info_t {
+	unsigned int vendor;
+	unsigned int device;
+	unsigned int subvendor;
+	unsigned int subdevice;
+	unsigned int index;
+	char *bp_name;
+
+} bpmod_info_t;
+
+typedef struct _dev_desc {
+	char *name;
+} dev_desc_t;
+
+dev_desc_t dev_desc[] = {
+	{"Silicom Bypass PXG2BPFI-SD series adapter"},
+	{"Silicom Bypass PXG2BPFIL-SD series adapter"},
+	{"Silicom Bypass PXG2BPFILX-SD series adapter"},
+	{"Silicom Bypass PXG2BPFILLX-SD series adapter"},
+	{"Silicom Bypass PXG2BPI-SD series adapter"},
+	{"Silicom Bypass PXG2BPIG-SD series adapter"},
+	{"Silicom Bypass PXG2TBFI-SD series adapter"},
+	{"Silicom Bypass PXG4BPI-SD series adapter"},
+	{"Silicom Bypass PXG4BPFI-SD series adapter"},
+	{"Silicom Bypass PEG4BPI-SD series adapter"},
+	{"Silicom Bypass PEG2BPI-SD series adapter"},
+	{"Silicom Bypass PEG4BPIN-SD series adapter"},
+	{"Silicom Bypass PEG2BPFI-SD series adapter"},
+	{"Silicom Bypass PEG2BPFI-LX-SD series adapter"},
+	{"Silicom Bypass PMCX2BPFI-SD series adapter"},
+	{"Silicom Bypass PMCX2BPFI-N series adapter"},
+	{"Intel Bypass PEG2BPII series adapter"},
+	{"Intel Bypass PEG2BPFII series adapter"},
+	{"Silicom Bypass PXG4BPFILX-SD series adapter"},
+	{"Silicom Bypass PMCX2BPI-N series adapter"},
+	{"Silicom Bypass PMCX4BPI-N series adapter"},
+	{"Silicom Bypass PXG2BISC1-SD series adapter"},
+	{"Silicom Bypass PEG2TBFI-SD series adapter"},
+	{"Silicom Bypass PXG2TBI-SD series adapter"},
+	{"Silicom Bypass PXG4BPFID-SD series adapter"},
+	{"Silicom Bypass PEG4BPFI-SD series adapter"},
+	{"Silicom Bypass PEG4BPIPT-SD series adapter"},
+	{"Silicom Bypass PXG6BPI-SD series adapter"},
+	{"Silicom Bypass PEG4BPIL-SD series adapter"},
+	{"Silicom Bypass PMCX2BPI-N2 series adapter"},
+	{"Silicom Bypass PMCX4BPI-N2 series adapter"},
+	{"Silicom Bypass PMCX2BPI-SD series adapter"},
+	{"Silicom Bypass PEG2BPFID-SD series adapter"},
+	{"Silicom Bypass PEG2BPFIDLX-SD series adapter"},
+	{"Silicom Bypass PMCX4BPI-SD series adapter"},
+	{"Silicom Bypass MEG2BPFILN-SD series adapter"},
+	{"Silicom Bypass MEG2BPFINX-SD series adapter"},
+	{"Silicom Bypass PEG4BPFILX-SD series adapter"},
+	{"Silicom Bypass PE10G2BPISR-SD series adapter"},
+	{"Silicom Bypass PE10G2BPILR-SD series adapter"},
+	{"Silicom Bypass MHIO8AD-SD series adapter"},
+	{"Silicom Bypass PE10G2BPICX4-SD series adapter"},
+	{"Silicom Bypass PEG2BPI5-SD series adapter"},
+	{"Silicom Bypass PEG6BPI5-SD series adapter"},
+	{"Silicom Bypass PEG4BPFI5-SD series adapter"},
+	{"Silicom Bypass PEG4BPFI5LX-SD series adapter"},
+	{"Silicom Bypass MEG2BPFILXLN-SD series adapter"},
+	{"Silicom Bypass PEG2BPIX1-SD series adapter"},
+	{"Silicom Bypass MEG2BPFILXNX-SD series adapter"},
+	{"Silicom Bypass XE10G2BPIT-SD series adapter"},
+	{"Silicom Bypass XE10G2BPICX4-SD series adapter"},
+	{"Silicom Bypass XE10G2BPISR-SD series adapter"},
+	{"Silicom Bypass XE10G2BPILR-SD series adapter"},
+	{"Intel Bypass PEG2BPFII0 series adapter"},
+	{"Silicom Bypass XE10G2BPIXR series adapter"},
+	{"Silicom Bypass PE10G2DBISR series adapter"},
+	{"Silicom Bypass PEG2BI5SC6 series adapter"},
+	{"Silicom Bypass PEG6BPI5FC series adapter"},
+
+	{"Silicom Bypass PE10G2BPTCX4 series adapter"},
+	{"Silicom Bypass PE10G2BPTSR series adapter"},
+	{"Silicom Bypass PE10G2BPTLR series adapter"},
+	{"Silicom Bypass PE10G2BPTT series adapter"},
+	{"Silicom Bypass PEG4BPI6 series adapter"},
+	{"Silicom Bypass PEG4BPFI6 series adapter"},
+	{"Silicom Bypass PEG4BPFI6LX series adapter"},
+	{"Silicom Bypass PEG4BPFI6ZX series adapter"},
+	{"Silicom Bypass PEG2BPI6 series adapter"},
+	{"Silicom Bypass PEG2BPFI6 series adapter"},
+	{"Silicom Bypass PEG2BPFI6LX series adapter"},
+	{"Silicom Bypass PEG2BPFI6ZX series adapter"},
+	{"Silicom Bypass PEG2BPFI6FLXM series adapter"},
+	{"Silicom Bypass PEG4BPI6FC series adapter"},
+	{"Silicom Bypass PEG4BPFI6FC series adapter"},
+	{"Silicom Bypass PEG4BPFI6FCLX series adapter"},
+	{"Silicom Bypass PEG4BPFI6FCZX series adapter"},
+	{"Silicom Bypass PEG6BPI6 series adapter"},
+	{"Silicom Bypass PEG2BPI6SC6 series adapter"},
+	{"Silicom Bypass MEG2BPI6 series adapter"},
+	{"Silicom Bypass XEG2BPI6 series adapter"},
+	{"Silicom Bypass MEG4BPI6 series adapter"},
+	{"Silicom Bypass PEG2BPFI5-SD series adapter"},
+	{"Silicom Bypass PEG2BPFI5LX-SD series adapter"},
+	{"Silicom Bypass PXEG4BPFI-SD series adapter"},
+	{"Silicom Bypass MxEG2BPI6 series adapter"},
+	{"Silicom Bypass MxEG2BPFI6 series adapter"},
+	{"Silicom Bypass MxEG2BPFI6LX series adapter"},
+	{"Silicom Bypass MxEG2BPFI6ZX series adapter"},
+	{"Silicom Bypass MxEG4BPI6 series adapter"},
+	{"Silicom Bypass MxEG4BPFI6 series adapter"},
+	{"Silicom Bypass MxEG4BPFI6LX series adapter"},
+	{"Silicom Bypass MxEG4BPFI6ZX series adapter"},
+	{"Silicom Bypass MxEG6BPI6 series adapter"},
+	{"Silicom Bypass MxE2G4BPi80 series adapter"},
+	{"Silicom Bypass MxE2G4BPFi80 series adapter"},
+	{"Silicom Bypass MxE2G4BPFi80LX series adapter"},
+	{"Silicom Bypass MxE2G4BPFi80ZX series adapter"},
+
+	{"Silicom Bypass PE210G2SPI9 series adapter"},
+
+	{"Silicom Bypass MxE210G2BPI9CX4 series adapter"},
+	{"Silicom Bypass MxE210G2BPI9SR series adapter"},
+	{"Silicom Bypass MxE210G2BPI9LR series adapter"},
+	{"Silicom Bypass MxE210G2BPI9T series adapter"},
+
+	{"Silicom Bypass PE210G2BPI9CX4 series adapter"},
+	{"Silicom Bypass PE210G2BPI9SR series adapter"},
+	{"Silicom Bypass PE210G2BPI9LR series adapter"},
+	{"Silicom Bypass PE210G2BPI9T series adapter"},
+
+	{"Silicom Bypass M2EG2BPFI6 series adapter"},
+	{"Silicom Bypass M2EG2BPFI6LX series adapter"},
+	{"Silicom Bypass M2EG2BPFI6ZX series adapter"},
+	{"Silicom Bypass M2EG4BPI6 series adapter"},
+	{"Silicom Bypass M2EG4BPFI6 series adapter"},
+	{"Silicom Bypass M2EG4BPFI6LX series adapter"},
+	{"Silicom Bypass M2EG4BPFI6ZX series adapter"},
+	{"Silicom Bypass M2EG6BPI6 series adapter"},
+
+	{"Silicom Bypass PEG2DBI6    series adapter"},
+	{"Silicom Bypass PEG2DBFI6   series adapter"},
+	{"Silicom Bypass PEG2DBFI6LX series adapter"},
+	{"Silicom Bypass PEG2DBFI6ZX series adapter"},
+
+	{"Silicom Bypass PE2G4BPi80 series adapter"},
+	{"Silicom Bypass PE2G4BPFi80 series adapter"},
+	{"Silicom Bypass PE2G4BPFi80LX series adapter"},
+	{"Silicom Bypass PE2G4BPFi80ZX series adapter"},
+
+	{"Silicom Bypass PE2G4BPi80L series adapter"},
+	{"Silicom Bypass MxE2G8BPi80A series adapter"},
+
+	{"Silicom Bypass PE2G2BPi35 series adapter"},
+	{"Silicom Bypass PAC1200BPi35 series adapter"},
+	{"Silicom Bypass PE2G2BPFi35 series adapter"},
+	{"Silicom Bypass PE2G2BPFi35LX series adapter"},
+	{"Silicom Bypass PE2G2BPFi35ZX series adapter"},
+
+	{"Silicom Bypass PE2G4BPi35 series adapter"},
+	{"Silicom Bypass PE2G4BPi35L series adapter"},
+	{"Silicom Bypass PE2G4BPFi35 series adapter"},
+	{"Silicom Bypass PE2G4BPFi35LX series adapter"},
+	{"Silicom Bypass PE2G4BPFi35ZX series adapter"},
+
+	{"Silicom Bypass PE2G6BPi35 series adapter"},
+	{"Silicom Bypass PE2G6BPi35CX series adapter"},
+
+	{"Silicom Bypass PE2G2BPi80 series adapter"},
+	{"Silicom Bypass PE2G2BPFi80 series adapter"},
+	{"Silicom Bypass PE2G2BPFi80LX series adapter"},
+	{"Silicom Bypass PE2G2BPFi80ZX series adapter"},
+
+	{"Silicom Bypass M2E10G2BPI9CX4 series adapter"},
+	{"Silicom Bypass M2E10G2BPI9SR series adapter"},
+	{"Silicom Bypass M2E10G2BPI9LR series adapter"},
+	{"Silicom Bypass M2E10G2BPI9T series adapter"},
+	{"Silicom Bypass MxE2G8BPi80 series adapter"},
+	{"Silicom Bypass PE210G2DBi9SR series adapter"},
+	{"Silicom Bypass PE210G2DBi9SRRB series adapter"},
+	{"Silicom Bypass PE210G2DBi9LR series adapter"},
+	{"Silicom Bypass PE210G2DBi9LRRB series adapter"},
+	{"Silicom Bypass PE310G4DBi9-SR series adapter"},
+	{"Silicom Bypass PE310G4BPi9T series adapter"},
+	{"Silicom Bypass PE310G4BPi9SR series adapter"},
+	{"Silicom Bypass PE310G4BPi9LR series adapter"},
+	{"Silicom Bypass PE210G2BPi40T series adapter"},
+	{0},
+};
+
+static bpmod_info_t tx_ctl_pci_tbl[] = {
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG2BPFI_SSID, PXG2BPFI,
+	 "PXG2BPFI-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG2BPFIL_SSID, PXG2BPFIL,
+	 "PXG2BPFIL-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG2BPFILX_SSID, PXG2BPFILX,
+	 "PXG2BPFILX-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG2BPFILLX_SSID, PXG2BPFILLX,
+	 "PXG2BPFILLXSD"},
+	{0x8086, 0x1010, SILICOM_SVID, SILICOM_PXGBPI_SSID, PXGBPI,
+	 "PXG2BPI-SD"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PXGBPIG_SSID, PXGBPIG,
+	 "PXG2BPIG-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG2TBFI_SSID, PXG2TBFI,
+	 "PXG2TBFI-SD"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PXG4BPI_SSID, PXG4BPI,
+	 "PXG4BPI-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG4BPFI_SSID, PXG4BPFI,
+	 "PXG4BPFI-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG4BPFILX_SSID, PXG4BPFILX,
+	 "PXG4BPFILX-SD"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PEG4BPI_SSID, PEG4BPI,
+	 "PEXG4BPI-SD"},
+	{0x8086, 0x105e, SILICOM_SVID, SILICOM_PEG2BPI_SSID, PEG2BPI,
+	 "PEG2BPI-SD"},
+	{0x8086, 0x105e, SILICOM_SVID, SILICOM_PEG4BPIN_SSID, PEG4BPIN,
+	 "PEG4BPI-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG2BPFI_SSID, PEG2BPFI,
+	 "PEG2BPFI-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG2BPFILX_SSID, PEG2BPFILX,
+	 "PEG2BPFILX-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PMCXG2BPFI_SSID, PMCXG2BPFI,
+	 "PMCX2BPFI-SD"},
+	{0x8086, 0x107a, NOKIA_PMCXG2BPFIN_SVID, NOKIA_PMCXG2BPFIN_SSID,
+	 PMCXG2BPFIN, "PMCX2BPFI-N"},
+	{0x8086, INTEL_PEG4BPII_PID, 0x8086, INTEL_PEG4BPII_SSID, PEG4BPII,
+	 "PEG4BPII"},
+	{0x8086, INTEL_PEG4BPIIO_PID, 0x8086, INTEL_PEG4BPIIO_SSID, PEG4BPIIO,
+	 "PEG4BPII0"},
+	{0x8086, INTEL_PEG4BPFII_PID, 0x8086, INTEL_PEG4BPFII_SSID, PEG4BPFII,
+	 "PEG4BPFII"},
+	{0x8086, 0x1079, NOKIA_PMCXG2BPFIN_SVID, NOKIA_PMCXG2BPIN_SSID,
+	 PMCXG2BPIN, "PMCX2BPI-N"},
+	{0x8086, 0x1079, NOKIA_PMCXG2BPFIN_SVID, NOKIA_PMCXG4BPIN_SSID,
+	 PMCXG4BPIN, "PMCX4BPI-N"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PXG2BISC1_SSID, PXG2BISC1,
+	 "PXG2BISC1-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG2TBFI_SSID, PEG2TBFI,
+	 "PEG2TBFI-SD"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PXG2TBI_SSID, PXG2TBI,
+	 "PXG2TBI-SD"},
+	{0x8086, 0x107a, SILICOM_SVID, SILICOM_PXG4BPFID_SSID, PXG4BPFID,
+	 "PXG4BPFID-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG4BPFI_SSID, PEG4BPFI,
+	 "PEG4BPFI-SD"},
+	{0x8086, 0x105e, SILICOM_SVID, SILICOM_PEG4BPIPT_SSID, PEG4BPIPT,
+	 "PEG4BPIPT-SD"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PXG6BPI_SSID, PXG6BPI,
+	 "PXG6BPI-SD"},
+	{0x8086, 0x10a7, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPIL_SSID /*PCI_ANY_ID */ , PEG4BPIL, "PEG4BPIL-SD"},
+	{0x8086, 0x1079, NOKIA_PMCXG2BPFIN_SVID, NOKIA_PMCXG2BPIN2_SSID,
+	 PMCXG2BPIN2, "PMCX2BPI-N2"},
+	{0x8086, 0x1079, NOKIA_PMCXG2BPFIN_SVID, NOKIA_PMCXG4BPIN2_SSID,
+	 PMCXG4BPIN2, "PMCX4BPI-N2"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PMCX2BPI_SSID, PMCX2BPI,
+	 "PMCX2BPI-SD"},
+	{0x8086, 0x1079, SILICOM_SVID, SILICOM_PMCX4BPI_SSID, PMCX4BPI,
+	 "PMCX4BPI-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG2BPFID_SSID, PEG2BPFID,
+	 "PEG2BPFID-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG2BPFIDLX_SSID, PEG2BPFIDLX,
+	 "PEG2BPFIDLXSD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_MEG2BPFILN_SSID, MEG2BPFILN,
+	 "MEG2BPFILN-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_MEG2BPFINX_SSID, MEG2BPFINX,
+	 "MEG2BPFINX-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PEG4BPFILX_SSID, PEG4BPFILX,
+	 "PEG4BPFILX-SD"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID, SILICOM_PE10G2BPISR_SSID,
+	 PE10G2BPISR, "PE10G2BPISR"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID, SILICOM_PE10G2BPILR_SSID,
+	 PE10G2BPILR, "PE10G2BPILR"},
+	{0x8086, 0x10a9, SILICOM_SVID, SILICOM_MHIO8AD_SSID, MHIO8AD,
+	 "MHIO8AD-SD"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID, SILICOM_PE10G2BPICX4_SSID,
+	 PE10G2BPISR, "PE10G2BPICX4"},
+	{0x8086, 0x10a7, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPI5_SSID /*PCI_ANY_ID */ , PEG2BPI5, "PEG2BPI5-SD"},
+	{0x8086, 0x10a7, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG6BPI_SSID /*PCI_ANY_ID */ , PEG6BPI, "PEG6BPI5"},
+	{0x8086, 0x10a9, SILICOM_SVID /*PCI_ANY_ID */ , SILICOM_PEG4BPFI5_SSID,
+	 PEG4BPFI5, "PEG4BPFI5"},
+	{0x8086, 0x10a9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI5LX_SSID, PEG4BPFI5LX, "PEG4BPFI5LX"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_MEG2BPFILXLN_SSID, MEG2BPFILXLN,
+	 "MEG2BPFILXLN"},
+	{0x8086, 0x105e, SILICOM_SVID, SILICOM_PEG2BPIX1_SSID, PEG2BPIX1,
+	 "PEG2BPIX1-SD"},
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_MEG2BPFILXNX_SSID, MEG2BPFILXNX,
+	 "MEG2BPFILXNX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID, SILICOM_XE10G2BPIT_SSID, XE10G2BPIT,
+	 "XE10G2BPIT"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID, SILICOM_XE10G2BPICX4_SSID,
+	 XE10G2BPICX4, "XE10G2BPICX4"},
+	{0x8086, 0x10C6, SILICOM_SVID, SILICOM_XE10G2BPISR_SSID, XE10G2BPISR,
+	 "XE10G2BPISR"},
+	{0x8086, 0x10C6, SILICOM_SVID, SILICOM_XE10G2BPILR_SSID, XE10G2BPILR,
+	 "XE10G2BPILR"},
+	{0x8086, 0x10C6, NOKIA_XE10G2BPIXR_SVID, NOKIA_XE10G2BPIXR_SSID,
+	 XE10G2BPIXR, "XE10G2BPIXR"},
+	{0x8086, 0x10C6, SILICOM_SVID, SILICOM_PE10GDBISR_SSID, PE10GDBISR,
+	 "PE10G2DBISR"},
+	{0x8086, 0x10C6, SILICOM_SVID, SILICOM_PE10GDBILR_SSID, PE10GDBILR,
+	 "PE10G2DBILR"},
+	{0x8086, 0x10a7, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BISC6_SSID /*PCI_ANY_ID */ , PEG2BISC6, "PEG2BI5SC6"},
+	{0x8086, 0x10a7, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG6BPIFC_SSID /*PCI_ANY_ID */ , PEG6BPIFC, "PEG6BPI5FC"},
+
+	{BROADCOM_VID, BROADCOM_PE10G2_PID, SILICOM_SVID,
+	 SILICOM_PE10G2BPTCX4_SSID, PE10G2BPTCX4, "PE10G2BPTCX4"},
+	{BROADCOM_VID, BROADCOM_PE10G2_PID, SILICOM_SVID,
+	 SILICOM_PE10G2BPTSR_SSID, PE10G2BPTSR, "PE10G2BPTSR"},
+	{BROADCOM_VID, BROADCOM_PE10G2_PID, SILICOM_SVID,
+	 SILICOM_PE10G2BPTLR_SSID, PE10G2BPTLR, "PE10G2BPTLR"},
+	{BROADCOM_VID, BROADCOM_PE10G2_PID, SILICOM_SVID,
+	 SILICOM_PE10G2BPTT_SSID, PE10G2BPTT, "PE10G2BPTT"},
+
+	/* {BROADCOM_VID, BROADCOM_PE10G2_PID, PCI_ANY_ID, PCI_ANY_ID, PE10G2BPTCX4, "PE10G2BPTCX4"}, */
+
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPI6_SSID /*PCI_ANY_ID */ , PEG4BPI6, "PEG4BPI6"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI6_SSID /*PCI_ANY_ID */ , PEG4BPFI6, "PEG4BPFI6"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI6LX_SSID /*PCI_ANY_ID */ , PEG4BPFI6LX, "PEG4BPFI6LX"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI6ZX_SSID /*PCI_ANY_ID */ , PEG4BPFI6ZX, "PEG4BPFI6ZX"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPI6_SSID /*PCI_ANY_ID */ , PEG2BPI6, "PEG2BPI6"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPFI6_SSID /*PCI_ANY_ID */ , PEG2BPFI6, "PEG2BPFI6"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPFI6LX_SSID /*PCI_ANY_ID */ , PEG2BPFI6LX, "PEG2BPFI6LX"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPFI6ZX_SSID /*PCI_ANY_ID */ , PEG2BPFI6ZX, "PEG2BPFI6ZX"},
+	{0x8086, 0x10e7, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPFI6FLXM_SSID /*PCI_ANY_ID */ , PEG2BPFI6FLXM,
+	 "PEG2BPFI6FLXM"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPI6FC_SSID /*PCI_ANY_ID */ , PEG4BPI6FC, "PEG4BPI6FC"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI6FC_SSID /*PCI_ANY_ID */ , PEG4BPFI6FC, "PEG4BPFI6FC"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI6FCLX_SSID /*PCI_ANY_ID */ , PEG4BPFI6FCLX,
+	 "PEG4BPFI6FCLX"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG4BPFI6FCZX_SSID /*PCI_ANY_ID */ , PEG4BPFI6FCZX,
+	 "PEG4BPFI6FCZX"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG6BPI6_SSID /*PCI_ANY_ID */ , PEG6BPI6, "PEG6BPI6"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPI6SC6_SSID /*PCI_ANY_ID */ , PEG2BPI6SC6,
+	 "PEG6BPI62SC6"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_MEG2BPI6_SSID /*PCI_ANY_ID */ , MEG2BPI6, "MEG2BPI6"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_XEG2BPI6_SSID /*PCI_ANY_ID */ , XEG2BPI6, "XEG2BPI6"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_MEG4BPI6_SSID /*PCI_ANY_ID */ , MEG4BPI6, "MEG4BPI6"},
+
+	{0x8086, 0x10a9, SILICOM_SVID /*PCI_ANY_ID */ , SILICOM_PEG2BPFI5_SSID,
+	 PEG2BPFI5, "PEG2BPFI5"},
+	{0x8086, 0x10a9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2BPFI5LX_SSID, PEG2BPFI5LX, "PEG2BPFI5LX"},
+
+	{0x8086, 0x105f, SILICOM_SVID, SILICOM_PXEG4BPFI_SSID, PXEG4BPFI,
+	 "PXEG4BPFI-SD"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG2BPI6_SSID /*PCI_ANY_ID */ , M1EG2BPI6, "MxEG2BPI6"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG2BPFI6_SSID /*PCI_ANY_ID */ , M1EG2BPFI6, "MxEG2BPFI6"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG2BPFI6LX_SSID /*PCI_ANY_ID */ , M1EG2BPFI6LX,
+	 "MxEG2BPFI6LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG2BPFI6ZX_SSID /*PCI_ANY_ID */ , M1EG2BPFI6ZX,
+	 "MxEG2BPFI6ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG4BPI6_SSID /*PCI_ANY_ID */ , M1EG4BPI6, "MxEG4BPI6"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG4BPFI6_SSID /*PCI_ANY_ID */ , M1EG4BPFI6, "MxEG4BPFI6"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG4BPFI6LX_SSID /*PCI_ANY_ID */ , M1EG4BPFI6LX,
+	 "MxEG4BPFI6LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG4BPFI6ZX_SSID /*PCI_ANY_ID */ , M1EG4BPFI6ZX,
+	 "MxEG4BPFI6ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1EG6BPI6_SSID /*PCI_ANY_ID */ , M1EG6BPI6, "MxEG6BPI6"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E2G4BPi80_SSID /*PCI_ANY_ID */ , M1E2G4BPi80, "MxE2G4BPi80"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E2G4BPFi80_SSID /*PCI_ANY_ID */ , M1E2G4BPFi80,
+	 "MxE2G4BPFi80"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E2G4BPFi80LX_SSID /*PCI_ANY_ID */ , M1E2G4BPFi80LX,
+	 "MxE2G4BPFi80LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E2G4BPFi80ZX_SSID /*PCI_ANY_ID */ , M1E2G4BPFi80ZX,
+	 "MxE2G4BPFi80ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG2BPFI6_SSID /*PCI_ANY_ID */ , M2EG2BPFI6, "M2EG2BPFI6"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG2BPFI6LX_SSID /*PCI_ANY_ID */ , M2EG2BPFI6LX,
+	 "M2EG2BPFI6LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG2BPFI6ZX_SSID /*PCI_ANY_ID */ , M2EG2BPFI6ZX,
+	 "M2EG2BPFI6ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG4BPI6_SSID /*PCI_ANY_ID */ , M2EG4BPI6, "M2EG4BPI6"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG4BPFI6_SSID /*PCI_ANY_ID */ , M2EG4BPFI6, "M2EG4BPFI6"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG4BPFI6LX_SSID /*PCI_ANY_ID */ , M2EG4BPFI6LX,
+	 "M2EG4BPFI6LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG4BPFI6ZX_SSID /*PCI_ANY_ID */ , M2EG4BPFI6ZX,
+	 "M2EG4BPFI6ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2EG6BPI6_SSID /*PCI_ANY_ID */ , M2EG6BPI6, "M2EG6BPI6"},
+
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2DBI6_SSID /*PCI_ANY_ID */ , PEG2DBI6, "PEG2DBI6"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2DBFI6_SSID /*PCI_ANY_ID */ , PEG2DBFI6, "PEG2DBFI6"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2DBFI6LX_SSID /*PCI_ANY_ID */ , PEG2DBFI6LX, "PEG2DBFI6LX"},
+	{0x8086, 0x10e6, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PEG2DBFI6ZX_SSID /*PCI_ANY_ID */ , PEG2DBFI6ZX, "PEG2DBFI6ZX"},
+
+	{0x8086, 0x10F9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE210G2DBi9SR_SSID, PE210G2DBi9SR, "PE210G2DBi9SR"},
+	{0x8086, 0x10F9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE210G2DBi9LR_SSID, PE210G2DBi9LR, "PE210G2DBi9LR"},
+	{0x8086, 0x10F9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE310G4DBi940SR_SSID, PE310G4DBi940SR, "PE310G4DBi9SR"},
+
+	{0x8086, 0x10Fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE310G4BPi9T_SSID, PE310G4BPi9T, "PE310G4BPi9T"},
+	{0x8086, 0x10Fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE310G4BPi9SR_SSID, PE310G4BPi9SR, "PE310G4BPi9SR"},
+	{0x8086, 0x10Fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE310G4BPi9LR_SSID, PE310G4BPi9LR, "PE310G4BPi9LR"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPi80_SSID /*PCI_ANY_ID */ , PE2G4BPi80, "PE2G4BPi80"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPFi80_SSID /*PCI_ANY_ID */ , PE2G4BPFi80, "PE2G4BPFi80"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPFi80LX_SSID /*PCI_ANY_ID */ , PE2G4BPFi80LX,
+	 "PE2G4BPFi80LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPFi80ZX_SSID /*PCI_ANY_ID */ , PE2G4BPFi80ZX,
+	 "PE2G4BPFi80ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPi80L_SSID /*PCI_ANY_ID */ , PE2G4BPi80L, "PE2G4BPi80L"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M6E2G8BPi80A_SSID /*PCI_ANY_ID */ , M6E2G8BPi80A,
+	 "MxE2G8BPi80A"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPi35_SSID /*PCI_ANY_ID */ , PE2G2BPi35, "PE2G2BPi35"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PAC1200BPi35_SSID /*PCI_ANY_ID */ , PAC1200BPi35,
+	 "PAC1200BPi35"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPFi35_SSID /*PCI_ANY_ID */ , PE2G2BPFi35, "PE2G2BPFi35"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPFi35LX_SSID /*PCI_ANY_ID */ , PE2G2BPFi35LX,
+	 "PE2G2BPFi35LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPFi35ZX_SSID /*PCI_ANY_ID */ , PE2G2BPFi35ZX,
+	 "PE2G2BPFi35ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPi35_SSID /*PCI_ANY_ID */ , PE2G4BPi35, "PE2G4BPi35"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPi35L_SSID /*PCI_ANY_ID */ , PE2G4BPi35L, "PE2G4BPi35L"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPFi35_SSID /*PCI_ANY_ID */ , PE2G4BPFi35, "PE2G4BPFi35"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPFi35LX_SSID /*PCI_ANY_ID */ , PE2G4BPFi35LX,
+	 "PE2G4BPFi35LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G4BPFi35ZX_SSID /*PCI_ANY_ID */ , PE2G4BPFi35ZX,
+	 "PE2G4BPFi35ZX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G6BPi35_SSID /*PCI_ANY_ID */ , PE2G6BPi35, "PE2G6BPi35"},
+
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa0, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa1, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa2, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa3, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa4, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa5, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa6, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa7, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa8, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaa9, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaaa, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaab, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaac, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaad, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaae, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaaf, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab0, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab1, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab2, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab3, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab4, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab5, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab6, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab7, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab8, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xab9, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xaba, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xabb, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xabc, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xabd, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xabe, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ , 0xabf, PE2G6BPi35CX,
+	 "PE2G6BPi35CX"},
+
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPi80_SSID /*PCI_ANY_ID */ , PE2G2BPi80, "PE2G2BPi80"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPFi80_SSID /*PCI_ANY_ID */ , PE2G2BPFi80, "PE2G2BPFi80"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPFi80LX_SSID /*PCI_ANY_ID */ , PE2G2BPFi80LX,
+	 "PE2G2BPFi80LX"},
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE2G2BPFi80ZX_SSID /*PCI_ANY_ID */ , PE2G2BPFi80ZX,
+	 "PE2G2BPFi80ZX"},
+
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_MEG2BPI6_SSID /*PCI_ANY_ID */ , MEG2BPI6, "MEG2BPI6"},
+	{0x8086, 0x10c9, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_XEG2BPI6_SSID /*PCI_ANY_ID */ , XEG2BPI6, "XEG2BPI6"},
+
+#if 0
+	{0x8086, 0x10fb, 0x8086, INTEL_PE210G2SPI9_SSID, PE210G2SPI9,
+	 "PE210G2SPI9"},
+#endif
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E10G2BPI9CX4_SSID /*PCI_ANY_ID */ , M1E10G2BPI9CX4,
+	 "MxE210G2BPI9CX4"},
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E10G2BPI9SR_SSID /*PCI_ANY_ID */ , M1E10G2BPI9SR,
+	 "MxE210G2BPI9SR"},
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E10G2BPI9LR_SSID /*PCI_ANY_ID */ , M1E10G2BPI9LR,
+	 "MxE210G2BPI9LR"},
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M1E10G2BPI9T_SSID /*PCI_ANY_ID */ , M1E10G2BPI9T,
+	 "MxE210G2BPI9T"},
+
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2E10G2BPI9CX4_SSID /*PCI_ANY_ID */ , M2E10G2BPI9CX4,
+	 "M2E10G2BPI9CX4"},
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2E10G2BPI9SR_SSID /*PCI_ANY_ID */ , M2E10G2BPI9SR,
+	 "M2E10G2BPI9SR"},
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2E10G2BPI9LR_SSID /*PCI_ANY_ID */ , M2E10G2BPI9LR,
+	 "M2E10G2BPI9LR"},
+	{0x8086, 0x10fb, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M2E10G2BPI9T_SSID /*PCI_ANY_ID */ , M2E10G2BPI9T,
+	 "M2E10G2BPI9T"},
+
+	{0x8086, 0x10fb, SILICOM_SVID, SILICOM_PE210G2BPI9CX4_SSID,
+	 PE210G2BPI9CX4, "PE210G2BPI9CX4"},
+	{0x8086, 0x10fb, SILICOM_SVID, SILICOM_PE210G2BPI9SR_SSID,
+	 PE210G2BPI9SR, "PE210G2BPI9SR"},
+	{0x8086, 0x10fb, SILICOM_SVID, SILICOM_PE210G2BPI9LR_SSID,
+	 PE210G2BPI9LR, "PE210G2BPI9LR"},
+	{0x8086, 0x10fb, SILICOM_SVID, SILICOM_PE210G2BPI9T_SSID, PE210G2BPI9T,
+	 "PE210G2BPI9T"},
+
+#if 0
+	{0x1374, 0x2c, SILICOM_SVID, SILICOM_PXG4BPI_SSID, PXG4BPI,
+	 "PXG4BPI-SD"},
+
+	{0x1374, 0x2d, SILICOM_SVID, SILICOM_PXG4BPFI_SSID, PXG4BPFI,
+	 "PXG4BPFI-SD"},
+
+	{0x1374, 0x3f, SILICOM_SVID, SILICOM_PXG2TBI_SSID, PXG2TBI,
+	 "PXG2TBI-SD"},
+
+	{0x1374, 0x3d, SILICOM_SVID, SILICOM_PXG2BISC1_SSID, PXG2BISC1,
+	 "PXG2BISC1-SD"},
+
+	{0x1374, 0x40, SILICOM_SVID, SILICOM_PEG4BPFI_SSID, PEG4BPFI,
+	 "PEG4BPFI-SD"},
+
+#ifdef BP_SELF_TEST
+	{0x1374, 0x28, SILICOM_SVID, 0x28, PXGBPI, "PXG2BPI-SD"},
+#endif
+#endif
+	{0x8086, PCI_ANY_ID, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_M6E2G8BPi80_SSID /*PCI_ANY_ID */ , M6E2G8BPi80, "MxE2G8BPi80"},
+	{0x8086, 0x1528, SILICOM_SVID /*PCI_ANY_ID */ ,
+	 SILICOM_PE210G2BPi40_SSID /*PCI_ANY_ID */ , PE210G2BPi40,
+	 "PE210G2BPi40T"},
+
+	/* required last entry */
+	{0,}
+};
+
+/*
+* Initialize the module - Register the character device
+*/
+
+static int __init bypass_init_module(void)
+{
+	int ret_val, idx, idx_dev = 0;
+	struct pci_dev *pdev1 = NULL;
+	unsigned long mmio_start, mmio_len;
+
+	printk(BP_MOD_DESCR " v" BP_MOD_VER "\n");
+	ret_val = register_chrdev(major_num, DEVICE_NAME, &Fops);
+	if (ret_val < 0) {
+		printk("%s failed with %d\n", DEVICE_NAME, ret_val);
+		return ret_val;
+	}
+	major_num = ret_val;	/* dynamic */
+	for (idx = 0; tx_ctl_pci_tbl[idx].vendor; idx++) {
+		while ((pdev1 = pci_get_subsys(tx_ctl_pci_tbl[idx].vendor,
+					       tx_ctl_pci_tbl[idx].device,
+					       tx_ctl_pci_tbl[idx].subvendor,
+					       tx_ctl_pci_tbl[idx].subdevice,
+					       pdev1))) {
+
+			device_num++;
+		}
+	}
+	if (!device_num) {
+		printk("No such device\n");
+		unregister_chrdev(major_num, DEVICE_NAME);
+		return -1;
+	}
+
+	bpctl_dev_arr = kmalloc((device_num) * sizeof(bpctl_dev_t), GFP_KERNEL);
+
+	if (!bpctl_dev_arr) {
+		printk("Allocation error\n");
+		unregister_chrdev(major_num, DEVICE_NAME);
+		return -1;
+	}
+	memset(bpctl_dev_arr, 0, ((device_num) * sizeof(bpctl_dev_t)));
+
+	pdev1 = NULL;
+	for (idx = 0; tx_ctl_pci_tbl[idx].vendor; idx++) {
+		while ((pdev1 = pci_get_subsys(tx_ctl_pci_tbl[idx].vendor,
+					       tx_ctl_pci_tbl[idx].device,
+					       tx_ctl_pci_tbl[idx].subvendor,
+					       tx_ctl_pci_tbl[idx].subdevice,
+					       pdev1))) {
+			bpctl_dev_arr[idx_dev].pdev = pdev1;
+
+			mmio_start = pci_resource_start(pdev1, 0);
+			mmio_len = pci_resource_len(pdev1, 0);
+
+			bpctl_dev_arr[idx_dev].desc =
+			    dev_desc[tx_ctl_pci_tbl[idx].index].name;
+			bpctl_dev_arr[idx_dev].name =
+			    tx_ctl_pci_tbl[idx].bp_name;
+			bpctl_dev_arr[idx_dev].device =
+			    tx_ctl_pci_tbl[idx].device;
+			bpctl_dev_arr[idx_dev].vendor =
+			    tx_ctl_pci_tbl[idx].vendor;
+			bpctl_dev_arr[idx_dev].subdevice =
+			    tx_ctl_pci_tbl[idx].subdevice;
+			bpctl_dev_arr[idx_dev].subvendor =
+			    tx_ctl_pci_tbl[idx].subvendor;
+			/* bpctl_dev_arr[idx_dev].pdev=pdev1; */
+			bpctl_dev_arr[idx_dev].func = PCI_FUNC(pdev1->devfn);
+			bpctl_dev_arr[idx_dev].slot = PCI_SLOT(pdev1->devfn);
+			bpctl_dev_arr[idx_dev].bus = pdev1->bus->number;
+			bpctl_dev_arr[idx_dev].mem_map =
+			    (unsigned long)ioremap(mmio_start, mmio_len);
+#ifdef BP_SYNC_FLAG
+			spin_lock_init(&bpctl_dev_arr[idx_dev].bypass_wr_lock);
+#endif
+			if (BP10G9_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice))
+				bpctl_dev_arr[idx_dev].bp_10g9 = 1;
+			if (BP10G_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice))
+				bpctl_dev_arr[idx_dev].bp_10g = 1;
+			if (PEG540_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) {
+
+				bpctl_dev_arr[idx_dev].bp_540 = 1;
+			}
+			if (PEGF5_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice))
+				bpctl_dev_arr[idx_dev].bp_fiber5 = 1;
+			if (PEG80_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice))
+				bpctl_dev_arr[idx_dev].bp_i80 = 1;
+			if (PEGF80_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice))
+				bpctl_dev_arr[idx_dev].bp_i80 = 1;
+			if ((bpctl_dev_arr[idx_dev].subdevice & 0xa00) == 0xa00)
+				bpctl_dev_arr[idx_dev].bp_i80 = 1;
+			if (BP10GB_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) {
+				if (bpctl_dev_arr[idx_dev].ifindex == 0) {
+					unregister_chrdev(major_num,
+							  DEVICE_NAME);
+					printk
+					    ("Please load network driver for %s adapter!\n",
+					     bpctl_dev_arr[idx_dev].name);
+					return -1;
+				}
+
+				if (bpctl_dev_arr[idx_dev].ndev) {
+					if (!
+					    (bpctl_dev_arr[idx_dev].ndev->
+					     flags & IFF_UP)) {
+						if (!
+						    (bpctl_dev_arr[idx_dev].
+						     ndev->flags & IFF_UP)) {
+							unregister_chrdev
+							    (major_num,
+							     DEVICE_NAME);
+							printk
+							    ("Please bring up network interfaces for %s adapter!\n",
+							     bpctl_dev_arr
+							     [idx_dev].name);
+							return -1;
+						}
+
+					}
+				}
+				bpctl_dev_arr[idx_dev].bp_10gb = 1;
+			}
+
+			if (!bpctl_dev_arr[idx_dev].bp_10g9) {
+
+				if (is_bypass_fn(&bpctl_dev_arr[idx_dev])) {
+					printk(KERN_INFO "%s found, ",
+					       bpctl_dev_arr[idx_dev].name);
+					if ((OLD_IF_SERIES
+					     (bpctl_dev_arr[idx_dev].subdevice))
+					    ||
+					    (INTEL_IF_SERIES
+					     (bpctl_dev_arr[idx_dev].
+					      subdevice)))
+						bpctl_dev_arr[idx_dev].
+						    bp_fw_ver = 0xff;
+					else
+						bpctl_dev_arr[idx_dev].
+						    bp_fw_ver =
+						    bypass_fw_ver(&bpctl_dev_arr
+								  [idx_dev]);
+					if ((bpctl_dev_arr[idx_dev].bp_10gb ==
+					     1)
+					    && (bpctl_dev_arr[idx_dev].
+						bp_fw_ver == 0xff)) {
+						int cnt = 100;
+						while (cnt--) {
+							iounmap((void
+								 *)
+								(bpctl_dev_arr
+								 [idx_dev].
+								 mem_map));
+							mmio_start =
+							    pci_resource_start
+							    (pdev1, 0);
+							mmio_len =
+							    pci_resource_len
+							    (pdev1, 0);
+
+							bpctl_dev_arr[idx_dev].
+							    mem_map =
+							    (unsigned long)
+							    ioremap(mmio_start,
+								    mmio_len);
+
+							bpctl_dev_arr[idx_dev].
+							    bp_fw_ver =
+							    bypass_fw_ver
+							    (&bpctl_dev_arr
+							     [idx_dev]);
+							if (bpctl_dev_arr
+							    [idx_dev].
+							    bp_fw_ver == 0xa8)
+								break;
+
+						}
+					}
+					/* bpctl_dev_arr[idx_dev].bp_fw_ver=0xa8; */
+					printk("firmware version: 0x%x\n",
+					       bpctl_dev_arr[idx_dev].
+					       bp_fw_ver);
+				}
+				bpctl_dev_arr[idx_dev].wdt_status =
+				    WDT_STATUS_UNKNOWN;
+				bpctl_dev_arr[idx_dev].reset_time = 0;
+				atomic_set(&bpctl_dev_arr[idx_dev].wdt_busy, 0);
+				bpctl_dev_arr[idx_dev].bp_status_un = 1;
+
+				bypass_caps_init(&bpctl_dev_arr[idx_dev]);
+
+				init_bypass_wd_auto(&bpctl_dev_arr[idx_dev]);
+				init_bypass_tpl_auto(&bpctl_dev_arr[idx_dev]);
+				if (NOKIA_SERIES
+				    (bpctl_dev_arr[idx_dev].subdevice))
+					reset_cont(&bpctl_dev_arr[idx_dev]);
+			}
+#ifdef BP_SELF_TEST
+			if ((bpctl_dev_arr[idx_dev].bp_tx_data =
+			     kmalloc(BPTEST_DATA_LEN, GFP_KERNEL))) {
+
+				memset(bpctl_dev_arr[idx_dev].bp_tx_data, 0x0,
+				       BPTEST_DATA_LEN);
+
+				memset(bpctl_dev_arr[idx_dev].bp_tx_data, 0xff,
+				       6);
+				memset(bpctl_dev_arr[idx_dev].bp_tx_data + 6,
+				       0x0, 1);
+				memset(bpctl_dev_arr[idx_dev].bp_tx_data + 7,
+				       0xaa, 5);
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
+				bpctl_dev_arr[idx_dev].bp_tx_data[12] =
+				    (ETH_P_BPTEST >> 8) & 0xff;
+				bpctl_dev_arr[idx_dev].bp_tx_data[13] =
+				    ETH_P_BPTEST & 0xff;
+#else
+				*(__be16 *) (bpctl_dev_arr[idx_dev].bp_tx_data +
+					     12) = htons(ETH_P_BPTEST);
+#endif
+
+			} else
+				printk("bp_ctl: Memory allocation error!\n");
+#endif
+			idx_dev++;
+
+		}
+	}
+	if_scan_init();
+
+	sema_init(&bpctl_sema, 1);
+	spin_lock_init(&bpvm_lock);
+	{
+
+		bpctl_dev_t *pbpctl_dev_c = NULL;
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if (bpctl_dev_arr[idx_dev].bp_10g9) {
+				pbpctl_dev_c =
+				    get_status_port_fn(&bpctl_dev_arr[idx_dev]);
+				if (is_bypass_fn(&bpctl_dev_arr[idx_dev])) {
+					printk(KERN_INFO "%s found, ",
+					       bpctl_dev_arr[idx_dev].name);
+					bpctl_dev_arr[idx_dev].bp_fw_ver =
+					    bypass_fw_ver(&bpctl_dev_arr
+							  [idx_dev]);
+					printk("firmware version: 0x%x\n",
+					       bpctl_dev_arr[idx_dev].
+					       bp_fw_ver);
+
+				}
+				bpctl_dev_arr[idx_dev].wdt_status =
+				    WDT_STATUS_UNKNOWN;
+				bpctl_dev_arr[idx_dev].reset_time = 0;
+				atomic_set(&bpctl_dev_arr[idx_dev].wdt_busy, 0);
+				bpctl_dev_arr[idx_dev].bp_status_un = 1;
+
+				bypass_caps_init(&bpctl_dev_arr[idx_dev]);
+
+				init_bypass_wd_auto(&bpctl_dev_arr[idx_dev]);
+				init_bypass_tpl_auto(&bpctl_dev_arr[idx_dev]);
+
+			}
+
+		}
+	}
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
+	inter_module_register("is_bypass_sd", THIS_MODULE, &is_bypass_sd);
+	inter_module_register("get_bypass_slave_sd", THIS_MODULE,
+			      &get_bypass_slave_sd);
+	inter_module_register("get_bypass_caps_sd", THIS_MODULE,
+			      &get_bypass_caps_sd);
+	inter_module_register("get_wd_set_caps_sd", THIS_MODULE,
+			      &get_wd_set_caps_sd);
+	inter_module_register("set_bypass_sd", THIS_MODULE, &set_bypass_sd);
+	inter_module_register("get_bypass_sd", THIS_MODULE, &get_bypass_sd);
+	inter_module_register("get_bypass_change_sd", THIS_MODULE,
+			      &get_bypass_change_sd);
+	inter_module_register("set_dis_bypass_sd", THIS_MODULE,
+			      &set_dis_bypass_sd);
+	inter_module_register("get_dis_bypass_sd", THIS_MODULE,
+			      &get_dis_bypass_sd);
+	inter_module_register("set_bypass_pwoff_sd", THIS_MODULE,
+			      &set_bypass_pwoff_sd);
+	inter_module_register("get_bypass_pwoff_sd", THIS_MODULE,
+			      &get_bypass_pwoff_sd);
+	inter_module_register("set_bypass_pwup_sd", THIS_MODULE,
+			      &set_bypass_pwup_sd);
+	inter_module_register("get_bypass_pwup_sd", THIS_MODULE,
+			      &get_bypass_pwup_sd);
+	inter_module_register("get_bypass_wd_sd", THIS_MODULE,
+			      &get_bypass_wd_sd);
+	inter_module_register("set_bypass_wd_sd", THIS_MODULE,
+			      &set_bypass_wd_sd);
+	inter_module_register("get_wd_expire_time_sd", THIS_MODULE,
+			      &get_wd_expire_time_sd);
+	inter_module_register("reset_bypass_wd_timer_sd", THIS_MODULE,
+			      &reset_bypass_wd_timer_sd);
+	inter_module_register("set_std_nic_sd", THIS_MODULE, &set_std_nic_sd);
+	inter_module_register("get_std_nic_sd", THIS_MODULE, &get_std_nic_sd);
+	inter_module_register("set_tx_sd", THIS_MODULE, &set_tx_sd);
+	inter_module_register("get_tx_sd", THIS_MODULE, &get_tx_sd);
+	inter_module_register("set_tpl_sd", THIS_MODULE, &set_tpl_sd);
+	inter_module_register("get_tpl_sd", THIS_MODULE, &get_tpl_sd);
+
+	inter_module_register("set_bp_hw_reset_sd", THIS_MODULE,
+			      &set_bp_hw_reset_sd);
+	inter_module_register("get_bp_hw_reset_sd", THIS_MODULE,
+			      &get_bp_hw_reset_sd);
+
+	inter_module_register("set_tap_sd", THIS_MODULE, &set_tap_sd);
+	inter_module_register("get_tap_sd", THIS_MODULE, &get_tap_sd);
+	inter_module_register("get_tap_change_sd", THIS_MODULE,
+			      &get_tap_change_sd);
+	inter_module_register("set_dis_tap_sd", THIS_MODULE, &set_dis_tap_sd);
+	inter_module_register("get_dis_tap_sd", THIS_MODULE, &get_dis_tap_sd);
+	inter_module_register("set_tap_pwup_sd", THIS_MODULE, &set_tap_pwup_sd);
+	inter_module_register("get_tap_pwup_sd", THIS_MODULE, &get_tap_pwup_sd);
+	inter_module_register("set_bp_disc_sd", THIS_MODULE, &set_bp_disc_sd);
+	inter_module_register("get_bp_disc_sd", THIS_MODULE, &get_bp_disc_sd);
+	inter_module_register("get_bp_disc_change_sd", THIS_MODULE,
+			      &get_bp_disc_change_sd);
+	inter_module_register("set_bp_dis_disc_sd", THIS_MODULE,
+			      &set_bp_dis_disc_sd);
+	inter_module_register("get_bp_dis_disc_sd", THIS_MODULE,
+			      &get_bp_dis_disc_sd);
+	inter_module_register("set_bp_disc_pwup_sd", THIS_MODULE,
+			      &set_bp_disc_pwup_sd);
+	inter_module_register("get_bp_disc_pwup_sd", THIS_MODULE,
+			      &get_bp_disc_pwup_sd);
+	inter_module_register("set_wd_exp_mode_sd", THIS_MODULE,
+			      &set_wd_exp_mode_sd);
+	inter_module_register("get_wd_exp_mode_sd", THIS_MODULE,
+			      &get_wd_exp_mode_sd);
+	inter_module_register("set_wd_autoreset_sd", THIS_MODULE,
+			      &set_wd_autoreset_sd);
+	inter_module_register("get_wd_autoreset_sd", THIS_MODULE,
+			      &get_wd_autoreset_sd);
+	inter_module_register("get_bypass_info_sd", THIS_MODULE,
+			      &get_bypass_info_sd);
+	inter_module_register("bp_if_scan_sd", THIS_MODULE, &bp_if_scan_sd);
+
+#endif
+	register_netdevice_notifier(&bp_notifier_block);
+#ifdef BP_PROC_SUPPORT
+	{
+		int i = 0;
+		/* unsigned long flags; */
+		/* rcu_read_lock(); */
+		bp_proc_create();
+		for (i = 0; i < device_num; i++) {
+			if (bpctl_dev_arr[i].ifindex) {
+				/* spin_lock_irqsave(&bpvm_lock, flags); */
+				bypass_proc_remove_dev_sd(&bpctl_dev_arr[i]);
+				bypass_proc_create_dev_sd(&bpctl_dev_arr[i]);
+				/* spin_unlock_irqrestore(&bpvm_lock, flags); */
+			}
+
+		}
+		/* rcu_read_unlock(); */
+	}
+#endif
+
+	return 0;
+}
+
+/*
+* Cleanup - unregister the appropriate file from /proc
+*/
+static void __exit bypass_cleanup_module(void)
+{
+	int i;
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23))
+	int ret;
+#endif
+	unregister_netdevice_notifier(&bp_notifier_block);
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
+	inter_module_unregister("is_bypass_sd");
+	inter_module_unregister("get_bypass_slave_sd");
+	inter_module_unregister("get_bypass_caps_sd");
+	inter_module_unregister("get_wd_set_caps_sd");
+	inter_module_unregister("set_bypass_sd");
+	inter_module_unregister("get_bypass_sd");
+	inter_module_unregister("get_bypass_change_sd");
+	inter_module_unregister("set_dis_bypass_sd");
+	inter_module_unregister("get_dis_bypass_sd");
+	inter_module_unregister("set_bypass_pwoff_sd");
+	inter_module_unregister("get_bypass_pwoff_sd");
+	inter_module_unregister("set_bypass_pwup_sd");
+	inter_module_unregister("get_bypass_pwup_sd");
+	inter_module_unregister("set_bypass_wd_sd");
+	inter_module_unregister("get_bypass_wd_sd");
+	inter_module_unregister("get_wd_expire_time_sd");
+	inter_module_unregister("reset_bypass_wd_timer_sd");
+	inter_module_unregister("set_std_nic_sd");
+	inter_module_unregister("get_std_nic_sd");
+	inter_module_unregister("set_tx_sd");
+	inter_module_unregister("get_tx_sd");
+	inter_module_unregister("set_tpl_sd");
+	inter_module_unregister("get_tpl_sd");
+	inter_module_unregister("set_tap_sd");
+	inter_module_unregister("get_tap_sd");
+	inter_module_unregister("get_tap_change_sd");
+	inter_module_unregister("set_dis_tap_sd");
+	inter_module_unregister("get_dis_tap_sd");
+	inter_module_unregister("set_tap_pwup_sd");
+	inter_module_unregister("get_tap_pwup_sd");
+	inter_module_unregister("set_bp_disc_sd");
+	inter_module_unregister("get_bp_disc_sd");
+	inter_module_unregister("get_bp_disc_change_sd");
+	inter_module_unregister("set_bp_dis_disc_sd");
+	inter_module_unregister("get_bp_dis_disc_sd");
+	inter_module_unregister("set_bp_disc_pwup_sd");
+	inter_module_unregister("get_bp_disc_pwup_sd");
+	inter_module_unregister("set_wd_exp_mode_sd");
+	inter_module_unregister("get_wd_exp_mode_sd");
+	inter_module_unregister("set_wd_autoreset_sd");
+	inter_module_unregister("get_wd_autoreset_sd");
+	inter_module_unregister("get_bypass_info_sd");
+	inter_module_unregister("bp_if_scan_sd");
+
+#endif
+
+	for (i = 0; i < device_num; i++) {
+		/* unsigned long flags; */
+#ifdef BP_PROC_SUPPORT
+/*	spin_lock_irqsave(&bpvm_lock, flags);
+	rcu_read_lock(); */
+		bypass_proc_remove_dev_sd(&bpctl_dev_arr[i]);
+/*	spin_unlock_irqrestore(&bpvm_lock, flags);        
+	rcu_read_unlock(); */
+#endif
+		remove_bypass_wd_auto(&bpctl_dev_arr[i]);
+		bpctl_dev_arr[i].reset_time = 0;
+
+		remove_bypass_tpl_auto(&bpctl_dev_arr[i]);
+	}
+
+	/* unmap all devices */
+	for (i = 0; i < device_num; i++) {
+#ifdef BP_SELF_TEST
+		if (bpctl_dev_arr[i].bp_tx_data)
+			kfree(bpctl_dev_arr[i].bp_tx_data);
+#endif
+		iounmap((void *)(bpctl_dev_arr[i].mem_map));
+	}
+
+	/* free all devices space */
+	if (bpctl_dev_arr)
+		kfree(bpctl_dev_arr);
+
+/*
+* Unregister the device                             
+*/
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23))
+	ret = unregister_chrdev(major_num, DEVICE_NAME);
+/*
+* If there's an error, report it
+*/
+	if (ret < 0)
+		printk("Error in module_unregister_chrdev: %d\n", ret);
+#else
+	unregister_chrdev(major_num, DEVICE_NAME);
+
+#endif
+}
+
+module_init(bypass_init_module);
+module_exit(bypass_cleanup_module);
+
+int is_bypass_sd(int ifindex)
+{
+	return is_bypass(get_dev_idx_p(ifindex));
+}
+
+int set_bypass_sd(int ifindex, int bypass_mode)
+{
+
+	return set_bypass_fn(get_dev_idx_p(ifindex), bypass_mode);
+}
+
+int get_bypass_sd(int ifindex)
+{
+
+	return get_bypass_fn(get_dev_idx_p(ifindex));
+}
+
+int get_bypass_change_sd(int ifindex)
+{
+
+	return get_bypass_change_fn(get_dev_idx_p(ifindex));
+}
+
+int set_dis_bypass_sd(int ifindex, int dis_param)
+{
+	return set_dis_bypass_fn(get_dev_idx_p(ifindex), dis_param);
+}
+
+int get_dis_bypass_sd(int ifindex)
+{
+
+	return get_dis_bypass_fn(get_dev_idx_p(ifindex));
+}
+
+int set_bypass_pwoff_sd(int ifindex, int bypass_mode)
+{
+	return set_bypass_pwoff_fn(get_dev_idx_p(ifindex), bypass_mode);
+
+}
+
+int get_bypass_pwoff_sd(int ifindex)
+{
+	return get_bypass_pwoff_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_bypass_pwup_sd(int ifindex, int bypass_mode)
+{
+	return set_bypass_pwup_fn(get_dev_idx_p(ifindex), bypass_mode);
+
+}
+
+int get_bypass_pwup_sd(int ifindex)
+{
+	return get_bypass_pwup_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_bypass_wd_sd(int if_index, int ms_timeout, int *ms_timeout_set)
+{
+	if ((is_bypass(get_dev_idx_p(if_index))) <= 0)
+		return BP_NOT_CAP;
+	*ms_timeout_set = set_bypass_wd_fn(get_dev_idx_p(if_index), ms_timeout);
+	return 0;
+}
+
+int get_bypass_wd_sd(int ifindex, int *timeout)
+{
+	return get_bypass_wd_fn(get_dev_idx_p(ifindex), timeout);
+
+}
+
+int get_wd_expire_time_sd(int ifindex, int *time_left)
+{
+	return get_wd_expire_time_fn(get_dev_idx_p(ifindex), time_left);
+}
+
+int reset_bypass_wd_timer_sd(int ifindex)
+{
+	return reset_bypass_wd_timer_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_wd_set_caps_sd(int ifindex)
+{
+	return get_wd_set_caps_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_std_nic_sd(int ifindex, int nic_mode)
+{
+	return set_std_nic_fn(get_dev_idx_p(ifindex), nic_mode);
+
+}
+
+int get_std_nic_sd(int ifindex)
+{
+	return get_std_nic_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_tap_sd(int ifindex, int tap_mode)
+{
+	return set_tap_fn(get_dev_idx_p(ifindex), tap_mode);
+
+}
+
+int get_tap_sd(int ifindex)
+{
+	return get_tap_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_tap_pwup_sd(int ifindex, int tap_mode)
+{
+	return set_tap_pwup_fn(get_dev_idx_p(ifindex), tap_mode);
+
+}
+
+int get_tap_pwup_sd(int ifindex)
+{
+	return get_tap_pwup_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_tap_change_sd(int ifindex)
+{
+	return get_tap_change_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_dis_tap_sd(int ifindex, int dis_param)
+{
+	return set_dis_tap_fn(get_dev_idx_p(ifindex), dis_param);
+
+}
+
+int get_dis_tap_sd(int ifindex)
+{
+	return get_dis_tap_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_bp_disc_sd(int ifindex, int disc_mode)
+{
+	return set_disc_fn(get_dev_idx_p(ifindex), disc_mode);
+
+}
+
+int get_bp_disc_sd(int ifindex)
+{
+	return get_disc_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_bp_disc_pwup_sd(int ifindex, int disc_mode)
+{
+	return set_disc_pwup_fn(get_dev_idx_p(ifindex), disc_mode);
+
+}
+
+int get_bp_disc_pwup_sd(int ifindex)
+{
+	return get_disc_pwup_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_bp_disc_change_sd(int ifindex)
+{
+	return get_disc_change_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_bp_dis_disc_sd(int ifindex, int dis_param)
+{
+	return set_dis_disc_fn(get_dev_idx_p(ifindex), dis_param);
+
+}
+
+int get_bp_dis_disc_sd(int ifindex)
+{
+	return get_dis_disc_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_wd_exp_mode_sd(int ifindex)
+{
+	return get_wd_exp_mode_fn(get_dev_idx_p(ifindex));
+}
+
+int set_wd_exp_mode_sd(int ifindex, int param)
+{
+	return set_wd_exp_mode_fn(get_dev_idx_p(ifindex), param);
+
+}
+
+int reset_cont_sd(int ifindex)
+{
+	return reset_cont_fn(get_dev_idx_p(ifindex));
+
+}
+
+int set_tx_sd(int ifindex, int tx_state)
+{
+	return set_tx_fn(get_dev_idx_p(ifindex), tx_state);
+
+}
+
+int set_tpl_sd(int ifindex, int tpl_state)
+{
+	return set_tpl_fn(get_dev_idx_p(ifindex), tpl_state);
+
+}
+
+int set_bp_hw_reset_sd(int ifindex, int status)
+{
+	return set_bp_hw_reset_fn(get_dev_idx_p(ifindex), status);
+
+}
+
+int set_wd_autoreset_sd(int ifindex, int param)
+{
+	return set_wd_autoreset_fn(get_dev_idx_p(ifindex), param);
+
+}
+
+int get_wd_autoreset_sd(int ifindex)
+{
+	return get_wd_autoreset_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_bypass_caps_sd(int ifindex)
+{
+	return get_bypass_caps_fn(get_dev_idx_p(ifindex));
+}
+
+int get_bypass_slave_sd(int ifindex)
+{
+	bpctl_dev_t *pbpctl_dev_out;
+	int ret = get_bypass_slave_fn(get_dev_idx_p(ifindex), &pbpctl_dev_out);
+	if (ret == 1)
+		return pbpctl_dev_out->ifindex;
+	return -1;
+
+}
+
+int get_tx_sd(int ifindex)
+{
+	return get_tx_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_tpl_sd(int ifindex)
+{
+	return get_tpl_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_bp_hw_reset_sd(int ifindex)
+{
+	return get_bp_hw_reset_fn(get_dev_idx_p(ifindex));
+
+}
+
+int get_bypass_info_sd(int ifindex, struct bp_info *bp_info)
+{
+	return get_bypass_info_fn(get_dev_idx_p(ifindex), bp_info->prod_name, &bp_info->fw_ver);
+}
+
+int bp_if_scan_sd(void)
+{
+	if_scan_init();
+	return 0;
+}
+
+EXPORT_SYMBOL_NOVERS(is_bypass_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_slave_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_caps_sd);
+EXPORT_SYMBOL_NOVERS(get_wd_set_caps_sd);
+EXPORT_SYMBOL_NOVERS(set_bypass_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_change_sd);
+EXPORT_SYMBOL_NOVERS(set_dis_bypass_sd);
+EXPORT_SYMBOL_NOVERS(get_dis_bypass_sd);
+EXPORT_SYMBOL_NOVERS(set_bypass_pwoff_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_pwoff_sd);
+EXPORT_SYMBOL_NOVERS(set_bypass_pwup_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_pwup_sd);
+EXPORT_SYMBOL_NOVERS(set_bypass_wd_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_wd_sd);
+EXPORT_SYMBOL_NOVERS(get_wd_expire_time_sd);
+EXPORT_SYMBOL_NOVERS(reset_bypass_wd_timer_sd);
+EXPORT_SYMBOL_NOVERS(set_std_nic_sd);
+EXPORT_SYMBOL_NOVERS(get_std_nic_sd);
+EXPORT_SYMBOL_NOVERS(set_tx_sd);
+EXPORT_SYMBOL_NOVERS(get_tx_sd);
+EXPORT_SYMBOL_NOVERS(set_tpl_sd);
+EXPORT_SYMBOL_NOVERS(get_tpl_sd);
+EXPORT_SYMBOL_NOVERS(set_bp_hw_reset_sd);
+EXPORT_SYMBOL_NOVERS(get_bp_hw_reset_sd);
+EXPORT_SYMBOL_NOVERS(set_tap_sd);
+EXPORT_SYMBOL_NOVERS(get_tap_sd);
+EXPORT_SYMBOL_NOVERS(get_tap_change_sd);
+EXPORT_SYMBOL_NOVERS(set_dis_tap_sd);
+EXPORT_SYMBOL_NOVERS(get_dis_tap_sd);
+EXPORT_SYMBOL_NOVERS(set_tap_pwup_sd);
+EXPORT_SYMBOL_NOVERS(get_tap_pwup_sd);
+EXPORT_SYMBOL_NOVERS(set_wd_exp_mode_sd);
+EXPORT_SYMBOL_NOVERS(get_wd_exp_mode_sd);
+EXPORT_SYMBOL_NOVERS(set_wd_autoreset_sd);
+EXPORT_SYMBOL_NOVERS(get_wd_autoreset_sd);
+EXPORT_SYMBOL_NOVERS(set_bp_disc_sd);
+EXPORT_SYMBOL_NOVERS(get_bp_disc_sd);
+EXPORT_SYMBOL_NOVERS(get_bp_disc_change_sd);
+EXPORT_SYMBOL_NOVERS(set_bp_dis_disc_sd);
+EXPORT_SYMBOL_NOVERS(get_bp_dis_disc_sd);
+EXPORT_SYMBOL_NOVERS(set_bp_disc_pwup_sd);
+EXPORT_SYMBOL_NOVERS(get_bp_disc_pwup_sd);
+EXPORT_SYMBOL_NOVERS(get_bypass_info_sd);
+EXPORT_SYMBOL_NOVERS(bp_if_scan_sd);
+
+#define BP_PROC_DIR "bypass"
+
+#define GPIO6_SET_ENTRY_SD           "gpio6_set"
+#define GPIO6_CLEAR_ENTRY_SD         "gpio6_clear"
+
+#define GPIO7_SET_ENTRY_SD           "gpio7_set"
+#define GPIO7_CLEAR_ENTRY_SD         "gpio7_clear"
+
+#define PULSE_SET_ENTRY_SD            "pulse_set"
+#define ZERO_SET_ENTRY_SD            "zero_set"
+#define PULSE_GET1_ENTRY_SD            "pulse_get1"
+#define PULSE_GET2_ENTRY_SD            "pulse_get2"
+
+#define CMND_ON_ENTRY_SD              "cmnd_on"
+#define CMND_OFF_ENTRY_SD             "cmnd_off"
+#define RESET_CONT_ENTRY_SD           "reset_cont"
+
+ /*COMMANDS*/
+#define BYPASS_INFO_ENTRY_SD     "bypass_info"
+#define BYPASS_SLAVE_ENTRY_SD    "bypass_slave"
+#define BYPASS_CAPS_ENTRY_SD     "bypass_caps"
+#define WD_SET_CAPS_ENTRY_SD     "wd_set_caps"
+#define BYPASS_ENTRY_SD          "bypass"
+#define BYPASS_CHANGE_ENTRY_SD   "bypass_change"
+#define BYPASS_WD_ENTRY_SD       "bypass_wd"
+#define WD_EXPIRE_TIME_ENTRY_SD  "wd_expire_time"
+#define RESET_BYPASS_WD_ENTRY_SD "reset_bypass_wd"
+#define DIS_BYPASS_ENTRY_SD      "dis_bypass"
+#define BYPASS_PWUP_ENTRY_SD     "bypass_pwup"
+#define BYPASS_PWOFF_ENTRY_SD     "bypass_pwoff"
+#define STD_NIC_ENTRY_SD         "std_nic"
+#define STD_NIC_ENTRY_SD         "std_nic"
+#define TAP_ENTRY_SD             "tap"
+#define TAP_CHANGE_ENTRY_SD      "tap_change"
+#define DIS_TAP_ENTRY_SD         "dis_tap"
+#define TAP_PWUP_ENTRY_SD        "tap_pwup"
+#define TWO_PORT_LINK_ENTRY_SD   "two_port_link"
+#define WD_EXP_MODE_ENTRY_SD     "wd_exp_mode"
+#define WD_AUTORESET_ENTRY_SD    "wd_autoreset"
+#define TPL_ENTRY_SD             "tpl"
+#define WAIT_AT_PWUP_ENTRY_SD    "wait_at_pwup"
+#define HW_RESET_ENTRY_SD        "hw_reset"
+#define DISC_ENTRY_SD             "disc"
+#define DISC_CHANGE_ENTRY_SD      "disc_change"
+#define DIS_DISC_ENTRY_SD         "dis_disc"
+#define DISC_PWUP_ENTRY_SD        "disc_pwup"
+static struct proc_dir_entry *bp_procfs_dir;
+
+static struct proc_dir_entry *proc_getdir(char *name,
+					  struct proc_dir_entry *proc_dir)
+{
+	struct proc_dir_entry *pde = proc_dir;
+
+	for (pde = pde->subdir; pde; pde = pde->next) {
+		if (pde->namelen && (strcmp(name, pde->name) == 0)) {
+			/* directory exists */
+			break;
+		}
+	}
+	if (pde == (struct proc_dir_entry *)0) {
+		/* create the directory */
+#if (LINUX_VERSION_CODE > 0x20300)
+		pde = proc_mkdir(name, proc_dir);
+#else
+		pde = create_proc_entry(name, S_IFDIR, proc_dir);
+#endif
+		if (pde == (struct proc_dir_entry *)0) {
+
+			return pde;
+		}
+	}
+
+	return pde;
+}
+
+int bp_proc_create(void)
+{
+	bp_procfs_dir = proc_getdir(BP_PROC_DIR, init_net.proc_net);
+	if (bp_procfs_dir == (struct proc_dir_entry *)0) {
+		printk(KERN_DEBUG
+		       "Could not create procfs nicinfo directory %s\n",
+		       BP_PROC_DIR);
+		return -1;
+	}
+	return 0;
+}
+
+int
+bypass_proc_create_entry_sd(struct pfs_unit_sd *pfs_unit_curr,
+			    char *proc_name,
+			    write_proc_t *write_proc,
+			    read_proc_t *read_proc,
+			    struct proc_dir_entry *parent_pfs, void *data)
+{
+	strcpy(pfs_unit_curr->proc_name, proc_name);
+	pfs_unit_curr->proc_entry = create_proc_entry(pfs_unit_curr->proc_name,
+						      S_IFREG | S_IRUSR |
+						      S_IWUSR | S_IRGRP |
+						      S_IROTH, parent_pfs);
+	if (pfs_unit_curr->proc_entry == NULL)
+		return -1;
+
+	pfs_unit_curr->proc_entry->read_proc = read_proc;
+	pfs_unit_curr->proc_entry->write_proc = write_proc;
+	pfs_unit_curr->proc_entry->data = data;
+
+	return 0;
+
+}
+
+int
+get_bypass_info_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+	int len = 0;
+
+	len += sprintf(page, "Name\t\t\t%s\n", pbp_device_block->name);
+	len +=
+	    sprintf(page + len, "Firmware version\t0x%x\n",
+		    pbp_device_block->bp_fw_ver);
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_slave_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0;
+	bpctl_dev_t *pbp_device_block_slave = NULL;
+	int idx_dev = 0;
+	struct net_device *net_slave_dev = NULL;
+
+	if ((pbp_device_block->func == 0) || (pbp_device_block->func == 2)) {
+		for (idx_dev = 0;
+		     ((bpctl_dev_arr[idx_dev].pdev != NULL)
+		      && (idx_dev < device_num)); idx_dev++) {
+			if ((bpctl_dev_arr[idx_dev].bus ==
+			     pbp_device_block->bus)
+			    && (bpctl_dev_arr[idx_dev].slot ==
+				pbp_device_block->slot)) {
+				if ((pbp_device_block->func == 0)
+				    && (bpctl_dev_arr[idx_dev].func == 1)) {
+					pbp_device_block_slave =
+					    &bpctl_dev_arr[idx_dev];
+					break;
+				}
+				if ((pbp_device_block->func == 2) &&
+				    (bpctl_dev_arr[idx_dev].func == 3)) {
+					pbp_device_block_slave =
+					    &bpctl_dev_arr[idx_dev];
+					break;
+				}
+			}
+		}
+	} else
+		pbp_device_block_slave = pbp_device_block;
+	if (!pbp_device_block_slave) {
+		len = sprintf(page, "fail\n");
+		*eof = 1;
+		return len;
+	}
+	net_slave_dev = pbp_device_block_slave->ndev;
+	if (net_slave_dev) {
+		if (net_slave_dev)
+			len = sprintf(page, "%s\n", net_slave_dev->name);
+		else
+			len = sprintf(page, "fail\n");
+
+	}
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_caps_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_caps_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "-1\n");
+	else
+		len = sprintf(page, "0x%x\n", ret);
+	*eof = 1;
+	return len;
+
+}
+
+int
+get_wd_set_caps_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_wd_set_caps_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "-1\n");
+	else
+		len = sprintf(page, "0x%x\n", ret);
+	*eof = 1;
+	return len;
+}
+
+int
+set_bypass_pfs(struct file *file, const char *buffer,
+	       unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_bypass_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_tap_pfs(struct file *file, const char *buffer,
+	    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_tap_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+set_disc_pfs(struct file *file, const char *buffer,
+	     unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_disc_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+get_bypass_pfs(char *page, char **start, off_t off, int count,
+	       int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_tap_pfs(char *page, char **start, off_t off, int count,
+	    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tap_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_disc_pfs(char *page, char **start, off_t off, int count,
+	     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_disc_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_change_pfs(char *page, char **start, off_t off, int count,
+		      int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_change_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_tap_change_pfs(char *page, char **start, off_t off, int count,
+		   int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tap_change_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_disc_change_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_disc_change_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+#define isdigit(c) (c >= '0' && c <= '9')
+__inline static int atoi(char **s)
+{
+	int i = 0;
+	while (isdigit(**s))
+		i = i * 10 + *((*s)++) - '0';
+	return i;
+}
+
+int
+set_bypass_wd_pfs(struct file *file, const char *buffer,
+		  unsigned long count, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+	int timeout;
+	int ret;
+
+	ret = kstrtoint_from_user(buffer, count, 10, &timeout);
+	if (ret)
+		return ret;
+	set_bypass_wd_fn(pbp_device_block, timeout);
+
+	return count;
+}
+
+int
+get_bypass_wd_pfs(char *page, char **start, off_t off, int count,
+		  int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0, timeout = 0;
+
+	ret = get_bypass_wd_fn(pbp_device_block, &timeout);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (timeout == -1)
+		len = sprintf(page, "unknown\n");
+	else if (timeout == 0)
+		len = sprintf(page, "disable\n");
+	else
+		len = sprintf(page, "%d\n", timeout);
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_wd_expire_time_pfs(char *page, char **start, off_t off, int count,
+		       int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0, timeout = 0;
+
+	ret = get_wd_expire_time_fn(pbp_device_block, &timeout);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (timeout == -1)
+		len = sprintf(page, "expire\n");
+	else if (timeout == 0)
+		len = sprintf(page, "disable\n");
+
+	else
+		len = sprintf(page, "%d\n", timeout);
+	*eof = 1;
+	return len;
+}
+
+int
+get_tpl_pfs(char *page, char **start, off_t off, int count,
+	    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tpl_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+#ifdef PMC_FIX_FLAG
+int
+get_wait_at_pwup_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bp_wait_at_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_hw_reset_pfs(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bp_hw_reset_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+#endif				/*PMC_WAIT_FLAG */
+
+int
+reset_bypass_wd_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = reset_bypass_wd_timer_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "disable\n");
+	else if (ret == 1)
+		len = sprintf(page, "success\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_dis_bypass_pfs(struct file *file, const char *buffer,
+		   unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_dis_bypass_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_dis_tap_pfs(struct file *file, const char *buffer,
+		unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_dis_tap_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+set_dis_disc_pfs(struct file *file, const char *buffer,
+		 unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_dis_disc_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+get_dis_bypass_pfs(char *page, char **start, off_t off, int count,
+		   int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_dis_bypass_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_dis_tap_pfs(char *page, char **start, off_t off, int count,
+		int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_dis_tap_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_dis_disc_pfs(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_dis_disc_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_bypass_pwup_pfs(struct file *file, const char *buffer,
+		    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_bypass_pwup_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_bypass_pwoff_pfs(struct file *file, const char *buffer,
+		     unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_bypass_pwoff_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_tap_pwup_pfs(struct file *file, const char *buffer,
+		 unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_tap_pwup_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+set_disc_pwup_pfs(struct file *file, const char *buffer,
+		  unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_disc_pwup_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+get_bypass_pwup_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_pwoff_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_pwoff_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_tap_pwup_pfs(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tap_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_disc_pwup_pfs(char *page, char **start, off_t off, int count,
+		  int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_disc_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_std_nic_pfs(struct file *file, const char *buffer,
+		unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count >= sizeof(kbuf))
+		return -EINVAL;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_std_nic_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+get_std_nic_pfs(char *page, char **start, off_t off, int count,
+		int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_std_nic_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_wd_exp_mode_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_wd_exp_mode_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "tap\n");
+	else if (ret == 0)
+		len = sprintf(page, "bypass\n");
+	else if (ret == 2)
+		len = sprintf(page, "disc\n");
+
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_wd_exp_mode_pfs(struct file *file, const char *buffer,
+		    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "tap") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "bypass") == 0)
+		bypass_param = 0;
+	else if (strcmp(kbuf, "disc") == 0)
+		bypass_param = 2;
+
+	set_wd_exp_mode_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+get_wd_autoreset_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_wd_autoreset_fn(pbp_device_block);
+	if (ret >= 0)
+		len = sprintf(page, "%d\n", ret);
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_wd_autoreset_pfs(struct file *file, const char *buffer,
+		     unsigned long count, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+	int timeout;
+	int ret;
+
+	ret = kstrtoint_from_user(buffer, count, 10, &timeout);
+	if (ret)
+		return ret;
+	set_wd_autoreset_fn(pbp_device_block, timeout);
+
+	return count;
+}
+
+int
+set_tpl_pfs(struct file *file, const char *buffer,
+	    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tpl_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tpl_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tpl_param = 0;
+
+	set_tpl_fn(pbp_device_block, tpl_param);
+
+	return count;
+}
+
+#ifdef PMC_FIX_FLAG
+int
+set_wait_at_pwup_pfs(struct file *file, const char *buffer,
+		     unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tpl_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tpl_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tpl_param = 0;
+
+	set_bp_wait_at_pwup_fn(pbp_device_block, tpl_param);
+
+	return count;
+}
+
+int
+set_hw_reset_pfs(struct file *file, const char *buffer,
+		 unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tpl_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tpl_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tpl_param = 0;
+
+	set_bp_hw_reset_fn(pbp_device_block, tpl_param);
+
+	return count;
+}
+
+#endif				/*PMC_FIX_FLAG */
+
+int bypass_proc_create_dev_sd(bpctl_dev_t *pbp_device_block)
+{
+	struct bypass_pfs_sd *current_pfs = &(pbp_device_block->bypass_pfs_set);
+	static struct proc_dir_entry *procfs_dir = NULL;
+	int ret = 0;
+
+	if (!pbp_device_block->ndev)
+		return -1;
+	sprintf(current_pfs->dir_name, "bypass_%s",
+		pbp_device_block->ndev->name);
+
+	if (!bp_procfs_dir)
+		return -1;
+
+	/* create device proc dir */
+	procfs_dir = proc_getdir(current_pfs->dir_name, bp_procfs_dir);
+	if (procfs_dir == 0) {
+		printk(KERN_DEBUG "Could not create procfs directory %s\n",
+		       current_pfs->dir_name);
+		return -1;
+	}
+	current_pfs->bypass_entry = procfs_dir;
+
+	if (bypass_proc_create_entry_sd(&(current_pfs->bypass_info), BYPASS_INFO_ENTRY_SD, NULL,	/* write */
+					get_bypass_info_pfs,	/* read  */
+					procfs_dir, pbp_device_block))
+		ret = -1;
+
+	if (pbp_device_block->bp_caps & SW_CTL_CAP) {
+
+		/* Create set param proc's */
+		if (bypass_proc_create_entry_sd(&(current_pfs->bypass_slave), BYPASS_SLAVE_ENTRY_SD, NULL,	/* write */
+						get_bypass_slave_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->bypass_caps), BYPASS_CAPS_ENTRY_SD, NULL,	/* write */
+						get_bypass_caps_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_set_caps), WD_SET_CAPS_ENTRY_SD, NULL,	/* write */
+						get_wd_set_caps_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+		if (bypass_proc_create_entry_sd(&(current_pfs->bypass_wd), BYPASS_WD_ENTRY_SD, set_bypass_wd_pfs,	/* write */
+						get_bypass_wd_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_expire_time), WD_EXPIRE_TIME_ENTRY_SD, NULL,	/* write */
+						get_wd_expire_time_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->reset_bypass_wd), RESET_BYPASS_WD_ENTRY_SD, NULL,	/* write */
+						reset_bypass_wd_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->std_nic), STD_NIC_ENTRY_SD, set_std_nic_pfs,	/* write */
+						get_std_nic_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (pbp_device_block->bp_caps & BP_CAP) {
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass), BYPASS_ENTRY_SD, set_bypass_pfs,	/* write */
+							get_bypass_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->dis_bypass), DIS_BYPASS_ENTRY_SD, set_dis_bypass_pfs,	/* write */
+							get_dis_bypass_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwup), BYPASS_PWUP_ENTRY_SD, set_bypass_pwup_pfs,	/* write */
+							get_bypass_pwup_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwoff), BYPASS_PWOFF_ENTRY_SD, set_bypass_pwoff_pfs,	/* write */
+							get_bypass_pwoff_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass_change), BYPASS_CHANGE_ENTRY_SD, NULL,	/* write */
+							get_bypass_change_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+		}
+
+		if (pbp_device_block->bp_caps & TAP_CAP) {
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap), TAP_ENTRY_SD, set_tap_pfs,	/* write */
+							get_tap_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_TAP_ENTRY_SD, set_dis_tap_pfs,	/* write */
+							get_dis_tap_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), TAP_PWUP_ENTRY_SD, set_tap_pwup_pfs,	/* write */
+							get_tap_pwup_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), TAP_CHANGE_ENTRY_SD, NULL,	/* write */
+							get_tap_change_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+		}
+		if (pbp_device_block->bp_caps & DISC_CAP) {
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap), DISC_ENTRY_SD, set_disc_pfs,	/* write */
+							get_disc_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+#if 1
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_DISC_ENTRY_SD, set_dis_disc_pfs,	/* write */
+							get_dis_disc_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+#endif
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), DISC_PWUP_ENTRY_SD, set_disc_pwup_pfs,	/* write */
+							get_disc_pwup_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), DISC_CHANGE_ENTRY_SD, NULL,	/* write */
+							get_disc_change_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+		}
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_exp_mode), WD_EXP_MODE_ENTRY_SD, set_wd_exp_mode_pfs,	/* write */
+						get_wd_exp_mode_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_autoreset), WD_AUTORESET_ENTRY_SD, set_wd_autoreset_pfs,	/* write */
+						get_wd_autoreset_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+		if (bypass_proc_create_entry_sd(&(current_pfs->tpl), TPL_ENTRY_SD, set_tpl_pfs,	/* write */
+						get_tpl_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+#ifdef PMC_FIX_FLAG
+		if (bypass_proc_create_entry_sd(&(current_pfs->tpl), WAIT_AT_PWUP_ENTRY_SD, set_wait_at_pwup_pfs,	/* write */
+						get_wait_at_pwup_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+		if (bypass_proc_create_entry_sd(&(current_pfs->tpl), HW_RESET_ENTRY_SD, set_hw_reset_pfs,	/* write */
+						get_hw_reset_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+#endif
+
+	}
+	if (ret < 0)
+		printk(KERN_DEBUG "Create proc entry failed\n");
+
+	return ret;
+}
+
+int bypass_proc_remove_dev_sd(bpctl_dev_t *pbp_device_block)
+{
+
+	struct bypass_pfs_sd *current_pfs = &pbp_device_block->bypass_pfs_set;
+	struct proc_dir_entry *pde = current_pfs->bypass_entry, *pde_curr =
+	    NULL;
+	char name[256];
+
+	if (!pde)
+		return 0;
+	for (pde = pde->subdir; pde;) {
+		strcpy(name, pde->name);
+		pde_curr = pde;
+		pde = pde->next;
+		remove_proc_entry(name, current_pfs->bypass_entry);
+	}
+	if (!pde)
+		remove_proc_entry(current_pfs->dir_name, bp_procfs_dir);
+	current_pfs->bypass_entry = NULL;
+
+	return 0;
+}
diff --git a/drivers/staging/silicom/bp_mod.h b/drivers/staging/silicom/bp_mod.h
new file mode 100644
index 00000000000..b8275f5611f
--- /dev/null
+++ b/drivers/staging/silicom/bp_mod.h
@@ -0,0 +1,704 @@
+/******************************************************************************/
+/*                                                                            */
+/* Bypass Control utility, Copyright (c) 2005 Silicom                         */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/* bp_mod.h                                                                   */
+/*                                                                            */
+/******************************************************************************/
+
+#ifndef BP_MOD_H
+#define BP_MOD_H
+#include "bits.h"
+
+#define EXPORT_SYMBOL_NOVERS EXPORT_SYMBOL
+
+#define usec_delay(x) udelay(x)
+#ifndef msec_delay_bp
+#define msec_delay_bp(x)			\
+do {						\
+	int  i;					\
+	if (1) {				\
+		for (i = 0; i < 1000; i++) {	\
+			udelay(x) ;		\
+		}				\
+	} else {				\
+		msleep(x);			\
+	}					\
+} while (0)
+
+#endif
+
+#include <linux/param.h>
+
+#ifndef jiffies_to_msecs
+#define jiffies_to_msecs(x) _kc_jiffies_to_msecs(x)
+static inline unsigned int jiffies_to_msecs(const unsigned long j)
+{
+#if HZ <= 1000 && !(1000 % HZ)
+	return (1000 / HZ) * j;
+#elif HZ > 1000 && !(HZ % 1000)
+	return (j + (HZ / 1000) - 1) / (HZ / 1000);
+#else
+	return (j * 1000) / HZ;
+#endif
+}
+#endif
+
+#define SILICOM_VID              0x1374
+#define SILICOM_SVID             0x1374
+
+#define SILICOM_PXG2BPFI_SSID    0x0026
+#define SILICOM_PXG2BPFILX_SSID  0x0027
+#define SILICOM_PXGBPI_SSID      0x0028
+#define SILICOM_PXGBPIG_SSID     0x0029
+#define SILICOM_PXG2TBFI_SSID    0x002a
+#define SILICOM_PXG4BPI_SSID     0x002c
+#define SILICOM_PXG4BPFI_SSID    0x002d
+#define SILICOM_PXG4BPFILX_SSID  0x002e
+#define SILICOM_PXG2BPFIL_SSID   0x002F
+#define SILICOM_PXG2BPFILLX_SSID 0x0030
+#define SILICOM_PEG4BPI_SSID     0x0031
+#define SILICOM_PEG2BPI_SSID     0x0037
+#define SILICOM_PEG4BPIN_SSID    0x0038
+#define SILICOM_PEG2BPFI_SSID    0x0039
+#define SILICOM_PEG2BPFILX_SSID  0x003A
+#define SILICOM_PMCXG2BPFI_SSID  0x003B
+#define NOKIA_PMCXG2BPFIN_SSID   0x0510
+#define NOKIA_PMCXG2BPIN_SSID    0x0513
+#define NOKIA_PMCXG4BPIN_SSID    0x0514
+#define NOKIA_PMCXG2BPFIN_SVID   0x13B8
+#define NOKIA_PMCXG2BPIN2_SSID    0x0515
+#define NOKIA_PMCXG4BPIN2_SSID    0x0516
+#define SILICOM_PMCX2BPI_SSID       0x041
+#define SILICOM_PMCX4BPI_SSID       0x042
+#define SILICOM_PXG2BISC1_SSID   0x003d
+#define SILICOM_PEG2TBFI_SSID    0x003E
+#define SILICOM_PXG2TBI_SSID     0x003f
+#define SILICOM_PXG4BPFID_SSID   0x0043
+#define SILICOM_PEG4BPFI_SSID    0x0040
+#define SILICOM_PEG4BPIPT_SSID   0x0044
+#define SILICOM_PXG6BPI_SSID     0x0045
+#define SILICOM_PEG4BPIL_SSID    0x0046
+#define SILICOM_PEG2BPI5_SSID    0x0052
+#define SILICOM_PEG6BPI_SSID    0x0053
+#define SILICOM_PEG4BPFI5_SSID   0x0050
+#define SILICOM_PEG4BPFI5LX_SSID   0x0051
+#define SILICOM_PEG2BISC6_SSID 0x54
+
+#define SILICOM_PEG6BPIFC_SSID 0x55
+
+#define SILICOM_PEG2BPFI5_SSID   0x0056
+#define SILICOM_PEG2BPFI5LX_SSID   0x0057
+
+#define SILICOM_PXEG4BPFI_SSID    0x0058
+
+#define SILICOM_PEG2BPFID_SSID   0x0047
+#define SILICOM_PEG2BPFIDLX_SSID  0x004C
+#define SILICOM_MEG2BPFILN_SSID  0x0048
+#define SILICOM_MEG2BPFINX_SSID  0x0049
+#define SILICOM_PEG4BPFILX_SSID  0x004A
+#define SILICOM_MHIO8AD_SSID    0x004F
+
+#define SILICOM_MEG2BPFILXLN_SSID 0x004b
+#define SILICOM_PEG2BPIX1_SSID    0x004d
+#define SILICOM_MEG2BPFILXNX_SSID 0x004e
+
+#define SILICOM_PE10G2BPISR_SSID  0x0102
+#define SILICOM_PE10G2BPILR_SSID  0x0103
+#define SILICOM_PE10G2BPICX4_SSID  0x0101
+
+#define SILICOM_XE10G2BPILR_SSID 0x0163
+#define SILICOM_XE10G2BPISR_SSID 0x0162
+#define SILICOM_XE10G2BPICX4_SSID 0x0161
+#define SILICOM_XE10G2BPIT_SSID   0x0160
+
+#define SILICOM_PE10GDBISR_SSID   0x0181
+#define SILICOM_PE10GDBILR_SSID   0x0182
+
+#define SILICOM_PE210G2DBi9SR_SSID	    0x0188
+#define SILICOM_PE210G2DBi9SRRB_SSID	0x0188
+#define SILICOM_PE210G2DBi9LR_SSID	    0x0189
+#define SILICOM_PE210G2DBi9LRRB_SSID	0x0189
+#define SILICOM_PE310G4DBi940SR_SSID	0x018C
+
+#define SILICOM_PE310G4BPi9T_SSID       0x130
+#define SILICOM_PE310G4BPi9SR_SSID        0x132
+#define SILICOM_PE310G4BPi9LR_SSID        0x133
+
+#define NOKIA_XE10G2BPIXR_SVID   0x13B8
+#define NOKIA_XE10G2BPIXR_SSID   0x051C
+
+#define INTEL_PEG4BPII_PID   0x10A0
+#define INTEL_PEG4BPFII_PID   0x10A1
+#define INTEL_PEG4BPII_SSID   0x11A0
+#define INTEL_PEG4BPFII_SSID   0x11A1
+
+#define INTEL_PEG4BPIIO_SSID   0x10A0
+#define INTEL_PEG4BPIIO_PID   0x105e
+
+#define BROADCOM_VID         0x14e4
+#define BROADCOM_PE10G2_PID  0x164e
+
+#define SILICOM_PE10G2BPTCX4_SSID 0x0141
+#define SILICOM_PE10G2BPTSR_SSID  0x0142
+#define SILICOM_PE10G2BPTLR_SSID  0x0143
+#define SILICOM_PE10G2BPTT_SSID   0x0140
+
+#define SILICOM_PEG4BPI6_SSID     0x0320
+#define SILICOM_PEG4BPFI6_SSID    0x0321
+#define SILICOM_PEG4BPFI6LX_SSID    0x0322
+#define SILICOM_PEG4BPFI6ZX_SSID    0x0323
+
+#define SILICOM_PEG2BPI6_SSID    0x0300
+#define SILICOM_PEG2BPFI6_SSID    0x0301
+#define SILICOM_PEG2BPFI6LX_SSID    0x0302
+#define SILICOM_PEG2BPFI6ZX_SSID    0x0303
+#define SILICOM_PEG2BPFI6FLXM_SSID  0x0304
+
+#define SILICOM_PEG2DBI6_SSID    0x0308
+#define SILICOM_PEG2DBFI6_SSID    0x0309
+#define SILICOM_PEG2DBFI6LX_SSID    0x030A
+#define SILICOM_PEG2DBFI6ZX_SSID    0x030B
+
+#define SILICOM_MEG2BPI6_SSID     0x0310
+#define SILICOM_XEG2BPI6_SSID    0x0318
+#define SILICOM_PEG4BPI6FC_SSID     0x0328
+#define SILICOM_PEG4BPFI6FC_SSID    0x0329
+#define SILICOM_PEG4BPFI6FCLX_SSID    0x032A
+#define SILICOM_PEG4BPFI6FCZX_SSID    0x032B
+
+#define SILICOM_PEG6BPI6_SSID     0x0340
+
+#define SILICOM_PEG2BPI6SC6_SSID     0x0360
+
+#define SILICOM_MEG2BPI6_SSID     0x0310
+#define SILICOM_XEG2BPI6_SSID     0x0318
+#define SILICOM_MEG4BPI6_SSID     0x0330
+
+#define SILICOM_PE2G4BPi80L_SSID    0x0380
+
+#define SILICOM_M6E2G8BPi80A_SSID    0x0474
+
+#define SILICOM_PE2G4BPi35_SSID    0x03d8
+
+#define SILICOM_PE2G4BPFi80_SSID    0x0381
+#define SILICOM_PE2G4BPFi80LX_SSID    0x0382
+#define SILICOM_PE2G4BPFi80ZX_SSID    0x0383
+
+#define SILICOM_PE2G4BPi80_SSID    0x0388
+
+#define SILICOM_PE2G2BPi80_SSID    0x0390
+#define SILICOM_PE2G2BPFi80_SSID    0x0391
+#define SILICOM_PE2G2BPFi80LX_SSID    0x0392
+#define SILICOM_PE2G2BPFi80ZX_SSID    0x0393
+
+#define SILICOM_PE2G4BPi35L_SSID    0x03D0
+#define SILICOM_PE2G4BPFi35_SSID    0x03D1
+#define SILICOM_PE2G4BPFi35LX_SSID    0x03D2
+#define SILICOM_PE2G4BPFi35ZX_SSID    0x03D3
+
+#define SILICOM_PE2G2BPi35_SSID    0x03c0
+#define SILICOM_PAC1200BPi35_SSID    0x03cc
+#define SILICOM_PE2G2BPFi35_SSID    0x03C1
+#define SILICOM_PE2G2BPFi35LX_SSID    0x03C2
+#define SILICOM_PE2G2BPFi35ZX_SSID    0x03C3
+
+#define SILICOM_PE2G6BPi35_SSID    0x03E0
+#define SILICOM_PE2G6BPi35CX_SSID  0x0AA0
+
+#define INTEL_PE210G2SPI9_SSID     0x00C
+
+#define SILICOM_M1EG2BPI6_SSID     0x400
+
+#define SILICOM_M1EG2BPFI6_SSID     0x0401
+#define SILICOM_M1EG2BPFI6LX_SSID     0x0402
+#define SILICOM_M1EG2BPFI6ZX_SSID     0x0403
+
+#define SILICOM_M1EG4BPI6_SSID     0x0420
+
+#define SILICOM_M1EG4BPFI6_SSID       0x0421
+#define SILICOM_M1EG4BPFI6LX_SSID     0x0422
+#define SILICOM_M1EG4BPFI6ZX_SSID     0x0423
+
+#define SILICOM_M1EG6BPI6_SSID     0x0440
+
+#define SILICOM_M1E2G4BPi80_SSID     0x0460
+#define SILICOM_M1E2G4BPFi80_SSID       0x0461
+#define SILICOM_M1E2G4BPFi80LX_SSID     0x0462
+#define SILICOM_M1E2G4BPFi80ZX_SSID     0x0463
+
+#define SILICOM_M6E2G8BPi80_SSID        0x0470
+#define SILICOM_PE210G2BPi40_SSID       0x01a0
+
+#define PEG540_IF_SERIES(pid) \
+	((pid == SILICOM_PE210G2BPi40_SSID))
+
+#define OLD_IF_SERIES(pid)\
+	((pid == SILICOM_PXG2BPFI_SSID) || \
+	 (pid == SILICOM_PXG2BPFILX_SSID))
+
+#define P2BPFI_IF_SERIES(pid) \
+	((pid == SILICOM_PXG2BPFI_SSID) || \
+	 (pid == SILICOM_PXG2BPFILX_SSID) || \
+	 (pid == SILICOM_PEG2BPFI_SSID) || \
+	 (pid == SILICOM_PEG2BPFID_SSID) || \
+	 (pid == SILICOM_PEG2BPFIDLX_SSID) || \
+	 (pid == SILICOM_MEG2BPFILN_SSID) || \
+	 (pid == SILICOM_MEG2BPFINX_SSID) || \
+	 (pid == SILICOM_PEG4BPFILX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI_SSID) || \
+	 (pid == SILICOM_PXEG4BPFI_SSID) || \
+	 (pid == SILICOM_PXG4BPFID_SSID) || \
+	 (pid == SILICOM_PEG2TBFI_SSID) || \
+	 (pid == SILICOM_PE10G2BPISR_SSID) || \
+	 (pid == SILICOM_PE10G2BPILR_SSID) || \
+	 (pid == SILICOM_PEG2BPFILX_SSID) || \
+	 (pid == SILICOM_PMCXG2BPFI_SSID) || \
+	 (pid == SILICOM_MHIO8AD_SSID) || \
+	 (pid == SILICOM_PEG4BPFI5LX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI5_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6FC_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6FCLX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6FCZX_SSID) || \
+	 (pid == NOKIA_PMCXG2BPFIN_SSID) || \
+	 (pid == SILICOM_MEG2BPFILXLN_SSID) || \
+	 (pid == SILICOM_MEG2BPFILXNX_SSID) || \
+	 (pid == SILICOM_XE10G2BPIT_SSID) || \
+	 (pid == SILICOM_XE10G2BPICX4_SSID) || \
+	 (pid == SILICOM_XE10G2BPISR_SSID) || \
+	 (pid == NOKIA_XE10G2BPIXR_SSID) || \
+	 (pid == SILICOM_PE10GDBISR_SSID) || \
+	 (pid == SILICOM_PE10GDBILR_SSID) || \
+	 (pid == SILICOM_XE10G2BPILR_SSID))
+
+#define INTEL_IF_SERIES(pid) \
+	((pid == INTEL_PEG4BPII_SSID) || \
+	 (pid == INTEL_PEG4BPIIO_SSID) || \
+	 (pid == INTEL_PEG4BPFII_SSID))
+
+#define NOKIA_SERIES(pid) \
+	((pid == NOKIA_PMCXG2BPIN_SSID) || \
+	 (pid == NOKIA_PMCXG4BPIN_SSID) || \
+	 (pid == SILICOM_PMCX4BPI_SSID) || \
+	 (pid == NOKIA_PMCXG2BPFIN_SSID) || \
+	 (pid == SILICOM_PMCXG2BPFI_SSID) || \
+	 (pid == NOKIA_PMCXG2BPIN2_SSID) || \
+	 (pid == NOKIA_PMCXG4BPIN2_SSID) || \
+	 (pid == SILICOM_PMCX2BPI_SSID))
+
+#define DISCF_IF_SERIES(pid) \
+	(pid == SILICOM_PEG2TBFI_SSID)
+
+#define PEGF_IF_SERIES(pid) \
+	((pid == SILICOM_PEG2BPFI_SSID) || \
+	 (pid == SILICOM_PEG2BPFID_SSID) || \
+	 (pid == SILICOM_PEG2BPFIDLX_SSID) || \
+	 (pid == SILICOM_PEG2BPFILX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI_SSID) || \
+	 (pid == SILICOM_PXEG4BPFI_SSID) || \
+	 (pid == SILICOM_MEG2BPFILN_SSID) || \
+	 (pid == SILICOM_MEG2BPFINX_SSID) || \
+	 (pid == SILICOM_PEG4BPFILX_SSID) || \
+	 (pid == SILICOM_PEG2TBFI_SSID) || \
+	 (pid == SILICOM_MEG2BPFILXLN_SSID) || \
+	 (pid == SILICOM_MEG2BPFILXNX_SSID))
+
+#define TPL_IF_SERIES(pid) \
+	((pid == SILICOM_PXG2BPFIL_SSID) || \
+	 (pid == SILICOM_PXG2BPFILLX_SSID) || \
+	 (pid == SILICOM_PXG2TBFI_SSID) || \
+	 (pid == SILICOM_PXG4BPFID_SSID) || \
+	 (pid == SILICOM_PXG4BPFI_SSID))
+
+#define BP10G_IF_SERIES(pid) \
+	((pid == SILICOM_PE10G2BPISR_SSID) || \
+	 (pid == SILICOM_PE10G2BPICX4_SSID) || \
+	 (pid == SILICOM_PE10G2BPILR_SSID) || \
+	 (pid == SILICOM_XE10G2BPIT_SSID) || \
+	 (pid == SILICOM_XE10G2BPICX4_SSID) || \
+	 (pid == SILICOM_XE10G2BPISR_SSID) || \
+	 (pid == NOKIA_XE10G2BPIXR_SSID) || \
+	 (pid == SILICOM_PE10GDBISR_SSID) || \
+	 (pid == SILICOM_PE10GDBILR_SSID) || \
+	 (pid == SILICOM_XE10G2BPILR_SSID))
+
+#define BP10GB_IF_SERIES(pid) \
+	((pid == SILICOM_PE10G2BPTCX4_SSID) || \
+	 (pid == SILICOM_PE10G2BPTSR_SSID) || \
+	 (pid == SILICOM_PE10G2BPTLR_SSID) || \
+	 (pid == SILICOM_PE10G2BPTT_SSID))
+
+#define BP10G_CX4_SERIES(pid) \
+	(pid == SILICOM_PE10G2BPICX4_SSID)
+
+#define BP10GB_CX4_SERIES(pid) \
+	(pid == SILICOM_PE10G2BPTCX4_SSID)
+
+#define SILICOM_M2EG2BPFI6_SSID       0x0501
+#define SILICOM_M2EG2BPFI6LX_SSID     0x0502
+#define SILICOM_M2EG2BPFI6ZX_SSID     0x0503
+#define SILICOM_M2EG4BPI6_SSID        0x0520
+
+#define SILICOM_M2EG4BPFI6_SSID       0x0521
+#define SILICOM_M2EG4BPFI6LX_SSID     0x0522
+#define SILICOM_M2EG4BPFI6ZX_SSID     0x0523
+
+#define SILICOM_M2EG6BPI6_SSID     0x0540
+
+#define SILICOM_M1E10G2BPI9CX4_SSID  0x481
+#define SILICOM_M1E10G2BPI9SR_SSID   0x482
+#define SILICOM_M1E10G2BPI9LR_SSID   0x483
+#define SILICOM_M1E10G2BPI9T_SSID    0x480
+
+#define SILICOM_M2E10G2BPI9CX4_SSID  0x581
+#define SILICOM_M2E10G2BPI9SR_SSID   0x582
+#define SILICOM_M2E10G2BPI9LR_SSID   0x583
+#define SILICOM_M2E10G2BPI9T_SSID    0x580
+
+#define SILICOM_PE210G2BPI9CX4_SSID  0x121
+#define SILICOM_PE210G2BPI9SR_SSID   0x122
+#define SILICOM_PE210G2BPI9LR_SSID   0x123
+#define SILICOM_PE210G2BPI9T_SSID    0x120
+
+#define DBI_IF_SERIES(pid) \
+	((pid == SILICOM_PE10GDBISR_SSID) || \
+	 (pid == SILICOM_PE10GDBILR_SSID) || \
+	 (pid == SILICOM_XE10G2BPILR_SSID) || \
+	 (pid == SILICOM_PE210G2DBi9LR_SSID))
+
+#define PEGF5_IF_SERIES(pid) \
+	((pid == SILICOM_PEG2BPFI5_SSID) || \
+	 (pid == SILICOM_PEG2BPFI5LX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6LX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6ZX_SSID) || \
+	 (pid == SILICOM_PEG2BPFI6_SSID) || \
+	 (pid == SILICOM_PEG2BPFI6LX_SSID) || \
+	 (pid == SILICOM_PEG2BPFI6ZX_SSID) || \
+	 (pid == SILICOM_PEG2BPFI6FLXM_SSID) || \
+	 (pid == SILICOM_PEG2DBFI6_SSID) || \
+	 (pid == SILICOM_PEG2DBFI6LX_SSID) || \
+	 (pid == SILICOM_PEG2DBFI6ZX_SSID) || \
+	 (pid == SILICOM_PEG4BPI6FC_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6FCLX_SSID) || \
+	 (pid == SILICOM_PEG4BPI6FC_SSID) || \
+	 (pid == SILICOM_M1EG2BPFI6_SSID) || \
+	 (pid == SILICOM_M1EG2BPFI6LX_SSID) || \
+	 (pid == SILICOM_M1EG2BPFI6ZX_SSID) || \
+	 (pid == SILICOM_M1EG4BPFI6_SSID) || \
+	 (pid == SILICOM_M1EG4BPFI6LX_SSID) || \
+	 (pid == SILICOM_M1EG4BPFI6ZX_SSID) || \
+	 (pid == SILICOM_M2EG2BPFI6_SSID) || \
+	 (pid == SILICOM_M2EG2BPFI6LX_SSID) || \
+	 (pid == SILICOM_M2EG2BPFI6ZX_SSID) || \
+	 (pid == SILICOM_M2EG4BPFI6_SSID) || \
+	 (pid == SILICOM_M2EG4BPFI6LX_SSID) || \
+	 (pid == SILICOM_M2EG4BPFI6ZX_SSID) || \
+	 (pid == SILICOM_PEG4BPFI6FCZX_SSID))
+
+#define PEG5_IF_SERIES(pid) \
+	((pid == SILICOM_PEG4BPI6_SSID) || \
+	 (pid == SILICOM_PEG2BPI6_SSID) || \
+	 (pid == SILICOM_PEG4BPI6FC_SSID) || \
+	 (pid == SILICOM_PEG6BPI6_SSID) || \
+	 (pid == SILICOM_PEG2BPI6SC6_SSID) || \
+	 (pid == SILICOM_MEG2BPI6_SSID) || \
+	 (pid == SILICOM_XEG2BPI6_SSID) || \
+	 (pid == SILICOM_MEG4BPI6_SSID) || \
+	 (pid == SILICOM_M1EG2BPI6_SSID) || \
+	 (pid == SILICOM_M1EG4BPI6_SSID) || \
+	 (pid == SILICOM_M1EG6BPI6_SSID) || \
+	 (pid == SILICOM_PEG6BPI_SSID) || \
+	 (pid == SILICOM_PEG4BPIL_SSID) || \
+	 (pid == SILICOM_PEG2BISC6_SSID) || \
+	 (pid == SILICOM_PEG2BPI5_SSID))
+
+#define PEG80_IF_SERIES(pid) \
+	((pid == SILICOM_M1E2G4BPi80_SSID) || \
+	 (pid == SILICOM_M6E2G8BPi80_SSID) || \
+	 (pid == SILICOM_PE2G4BPi80L_SSID) || \
+	 (pid == SILICOM_M6E2G8BPi80A_SSID) || \
+	 (pid == SILICOM_PE2G2BPi35_SSID) || \
+	 (pid == SILICOM_PAC1200BPi35_SSID) || \
+	 (pid == SILICOM_PE2G4BPi35_SSID) || \
+	 (pid == SILICOM_PE2G4BPi35L_SSID) || \
+	 (pid == SILICOM_PE2G6BPi35_SSID) || \
+	 (pid == SILICOM_PE2G2BPi80_SSID) || \
+	 (pid == SILICOM_PE2G4BPi80_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80LX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80ZX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80ZX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi80_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi80LX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi80ZX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi35_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi35LX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi35ZX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi35_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi35LX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi35ZX_SSID))
+
+#define PEGF80_IF_SERIES(pid) \
+	((pid == SILICOM_PE2G4BPFi80_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80LX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80ZX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi80ZX_SSID) || \
+	 (pid == SILICOM_M1E2G4BPFi80_SSID) || \
+	 (pid == SILICOM_M1E2G4BPFi80LX_SSID) || \
+	 (pid == SILICOM_M1E2G4BPFi80ZX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi80_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi80LX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi80ZX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi35_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi35LX_SSID) || \
+	 (pid == SILICOM_PE2G2BPFi35ZX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi35_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi35LX_SSID) || \
+	 (pid == SILICOM_PE2G4BPFi35ZX_SSID))
+
+#define BP10G9_IF_SERIES(pid) \
+	((pid == INTEL_PE210G2SPI9_SSID) || \
+	 (pid == SILICOM_M1E10G2BPI9CX4_SSID) || \
+	 (pid == SILICOM_M1E10G2BPI9SR_SSID) || \
+	 (pid == SILICOM_M1E10G2BPI9LR_SSID) || \
+	 (pid == SILICOM_M1E10G2BPI9T_SSID) || \
+	 (pid == SILICOM_M2E10G2BPI9CX4_SSID) || \
+	 (pid == SILICOM_M2E10G2BPI9SR_SSID) || \
+	 (pid == SILICOM_M2E10G2BPI9LR_SSID) || \
+	 (pid == SILICOM_M2E10G2BPI9T_SSID) || \
+	 (pid == SILICOM_PE210G2BPI9CX4_SSID) || \
+	 (pid == SILICOM_PE210G2BPI9SR_SSID) || \
+	 (pid == SILICOM_PE210G2BPI9LR_SSID) || \
+	 (pid == SILICOM_PE210G2DBi9SR_SSID) || \
+	 (pid == SILICOM_PE210G2DBi9SRRB_SSID) || \
+	 (pid == SILICOM_PE210G2DBi9LR_SSID) || \
+	 (pid == SILICOM_PE210G2DBi9LRRB_SSID) || \
+	 (pid == SILICOM_PE310G4DBi940SR_SSID) || \
+	 (pid == SILICOM_PEG2BISC6_SSID) || \
+	 (pid == SILICOM_PE310G4BPi9T_SSID) || \
+	 (pid == SILICOM_PE310G4BPi9SR_SSID) || \
+	 (pid == SILICOM_PE310G4BPi9LR_SSID) || \
+	 (pid == SILICOM_PE210G2BPI9T_SSID))
+
+/*******************************************************/
+/* 1G INTERFACE ****************************************/
+/*******************************************************/
+
+/* Intel Registers */
+#define BPCTLI_CTRL          0x00000
+#define BPCTLI_CTRL_SWDPIO0  0x00400000
+#define BPCTLI_CTRL_SWDPIN0  0x00040000
+
+#define BPCTLI_CTRL_EXT 0x00018	/* Extended Device Control - RW */
+#define BPCTLI_STATUS   0x00008	/* Device Status - RO */
+
+/* HW related */
+#define BPCTLI_CTRL_EXT_SDP6_DATA 0x00000040	/* Value of SW Defineable Pin 6 */
+#define BPCTLI_CTRL_EXT_SDP7_DATA 0x00000080	/* Value of SW Defineable Pin 7 */
+#define BPCTLI_CTRL_SDP0_DATA     0x00040000	/* SWDPIN 0 value */
+#define BPCTLI_CTRL_EXT_SDP6_DIR  0x00000400	/* Direction of SDP6 0=in 1=out */
+#define BPCTLI_CTRL_EXT_SDP7_DIR  0x00000800	/* Direction of SDP7 0=in 1=out */
+#define BPCTLI_CTRL_SDP0_DIR      0x00400000	/* SDP0 Input or output */
+#define BPCTLI_CTRL_SWDPIN1       0x00080000
+#define BPCTLI_CTRL_SDP1_DIR      0x00800000
+
+#define BPCTLI_STATUS_LU          0x00000002	/* Link up.0=no,1=link */
+
+#define BPCTLI_CTRL_SDP0_SHIFT     18
+#define BPCTLI_CTRL_EXT_SDP6_SHIFT 6
+
+#define BPCTLI_STATUS_TBIMODE     0x00000020
+#define BPCTLI_CTRL_EXT_LINK_MODE_PCIE_SERDES  0x00C00000
+#define BPCTLI_CTRL_EXT_LINK_MODE_MASK         0x00C00000
+
+#define BPCTLI_CTRL_EXT_MCLK_DIR  BPCTLI_CTRL_EXT_SDP7_DIR
+#define BPCTLI_CTRL_EXT_MCLK_DATA BPCTLI_CTRL_EXT_SDP7_DATA
+#define BPCTLI_CTRL_EXT_MDIO_DIR  BPCTLI_CTRL_EXT_SDP6_DIR
+#define BPCTLI_CTRL_EXT_MDIO_DATA BPCTLI_CTRL_EXT_SDP6_DATA
+
+#define BPCTLI_CTRL_EXT_MCLK_DIR5  BPCTLI_CTRL_SDP1_DIR
+#define BPCTLI_CTRL_EXT_MCLK_DATA5 BPCTLI_CTRL_SWDPIN1
+#define BPCTLI_CTRL_EXT_MCLK_DIR80  BPCTLI_CTRL_EXT_SDP6_DIR
+#define BPCTLI_CTRL_EXT_MCLK_DATA80 BPCTLI_CTRL_EXT_SDP6_DATA
+#define BPCTLI_CTRL_EXT_MDIO_DIR5  BPCTLI_CTRL_SWDPIO0
+#define BPCTLI_CTRL_EXT_MDIO_DATA5 BPCTLI_CTRL_SWDPIN0
+#define BPCTLI_CTRL_EXT_MDIO_DIR80  BPCTLI_CTRL_SWDPIO0
+#define BPCTLI_CTRL_EXT_MDIO_DATA80 BPCTLI_CTRL_SWDPIN0
+
+#define BPCTL_WRITE_REG(a, reg, value) \
+	(writel((value), (void *)(((a)->mem_map) + BPCTLI_##reg)))
+
+#define BPCTL_READ_REG(a, reg) ( \
+	readl((void *)((a)->mem_map) + BPCTLI_##reg))
+
+#define BPCTL_WRITE_FLUSH(a) BPCTL_READ_REG(a, STATUS)
+
+#define BPCTL_BP_WRITE_REG(a, reg, value) ({ \
+	BPCTL_WRITE_REG(a, reg, value); \
+	BPCTL_WRITE_FLUSH(a); })
+
+/**************************************************************/
+/************** 82575 Interface********************************/
+/**************************************************************/
+
+#define BPCTLI_MII_CR_POWER_DOWN       0x0800
+#define BPCTLI_PHY_CONTROL      0x00	/* Control Register */
+#define BPCTLI_MDIC     0x00020	/* MDI Control - RW */
+#define BPCTLI_IGP01E1000_PHY_PAGE_SELECT        0x1F	/* Page Select */
+#define BPCTLI_MAX_PHY_REG_ADDRESS    0x1F	/* 5 bit address bus (0-0x1F) */
+
+#define BPCTLI_MDIC_DATA_MASK 0x0000FFFF
+#define BPCTLI_MDIC_REG_MASK  0x001F0000
+#define BPCTLI_MDIC_REG_SHIFT 16
+#define BPCTLI_MDIC_PHY_MASK  0x03E00000
+#define BPCTLI_MDIC_PHY_SHIFT 21
+#define BPCTLI_MDIC_OP_WRITE  0x04000000
+#define BPCTLI_MDIC_OP_READ   0x08000000
+#define BPCTLI_MDIC_READY     0x10000000
+#define BPCTLI_MDIC_INT_EN    0x20000000
+#define BPCTLI_MDIC_ERROR     0x40000000
+
+#define BPCTLI_SWFW_PHY0_SM  0x02
+#define BPCTLI_SWFW_PHY1_SM  0x04
+
+#define BPCTLI_SW_FW_SYNC  0x05B5C	/* Software-Firmware Synchronization - RW */
+
+#define BPCTLI_SWSM      0x05B50	/* SW Semaphore */
+#define BPCTLI_FWSM      0x05B54	/* FW Semaphore */
+
+#define BPCTLI_SWSM_SMBI         0x00000001	/* Driver Semaphore bit */
+#define BPCTLI_SWSM_SWESMBI      0x00000002	/* FW Semaphore bit */
+#define BPCTLI_MAX_PHY_MULTI_PAGE_REG 0xF
+#define BPCTLI_GEN_POLL_TIMEOUT          640
+
+/********************************************************/
+
+/********************************************************/
+/* 10G INTERFACE ****************************************/
+/********************************************************/
+
+#define BP10G_I2CCTL              0x28
+
+/* I2CCTL Bit Masks */
+#define BP10G_I2C_CLK_IN    0x00000001
+#define BP10G_I2C_CLK_OUT   0x00000002
+#define BP10G_I2C_DATA_IN   0x00000004
+#define BP10G_I2C_DATA_OUT  0x00000008
+
+#define BP10G_ESDP                0x20
+
+#define BP10G_SDP0_DIR            0x100
+#define BP10G_SDP1_DIR            0x200
+#define BP10G_SDP3_DIR            0x800
+#define BP10G_SDP4_DIR            BIT_12
+#define BP10G_SDP5_DIR            0x2000
+#define BP10G_SDP0_DATA           0x001
+#define BP10G_SDP1_DATA           0x002
+#define BP10G_SDP3_DATA           0x008
+#define BP10G_SDP4_DATA           0x010
+#define BP10G_SDP5_DATA           0x020
+
+#define BP10G_SDP2_DIR            0x400
+#define BP10G_SDP2_DATA            0x4
+
+#define BP10G_EODSDP              0x28
+
+#define BP10G_SDP6_DATA_IN        0x001
+#define BP10G_SDP6_DATA_OUT       0x002
+
+#define BP10G_SDP7_DATA_IN        0x004
+#define BP10G_SDP7_DATA_OUT       0x008
+
+#define BP10G_MCLK_DATA_OUT       BP10G_SDP7_DATA_OUT
+#define BP10G_MDIO_DATA_OUT       BP10G_SDP6_DATA_OUT
+#define BP10G_MDIO_DATA_IN        BP10G_SDP6_DATA_IN
+
+#define BP10G_MDIO_DATA           /*BP10G_SDP5_DATA*/ BP10G_SDP3_DATA
+#define BP10G_MDIO_DIR            /*BP10G_SDP5_DIR*/  BP10G_SDP3_DATA
+
+/*#define BP10G_MCLK_DATA_OUT9       BP10G_I2C_CLK_OUT
+#define BP10G_MDIO_DATA_OUT9       BP10G_I2C_DATA_OUT*/
+
+				       /*#define BP10G_MCLK_DATA_OUT9*//*BP10G_I2C_DATA_OUT */
+#define BP10G_MDIO_DATA_OUT9           BP10G_I2C_DATA_OUT	/*BP10G_I2C_CLK_OUT */
+
+/* VIA EOSDP ! */
+#define BP10G_MCLK_DATA_OUT9           BP10G_SDP4_DATA
+#define BP10G_MCLK_DIR_OUT9            BP10G_SDP4_DIR
+
+/*#define BP10G_MDIO_DATA_IN9        BP10G_I2C_DATA_IN*/
+
+#define BP10G_MDIO_DATA_IN9           BP10G_I2C_DATA_IN	/*BP10G_I2C_CLK_IN */
+
+#define BP540_MDIO_DATA           /*BP10G_SDP5_DATA*/ BP10G_SDP0_DATA
+#define BP540_MDIO_DIR            /*BP10G_SDP5_DIR*/  BP10G_SDP0_DIR
+#define BP540_MCLK_DATA       BP10G_SDP2_DATA
+#define BP540_MCLK_DIR       BP10G_SDP2_DIR
+
+#define BP10G_WRITE_REG(a, reg, value) \
+	(writel((value), (void *)(((a)->mem_map) + BP10G_##reg)))
+
+#define BP10G_READ_REG(a, reg) ( \
+	readl((void *)((a)->mem_map) + BP10G_##reg))
+
+/*****BROADCOM*******************************************/
+
+#define BP10GB_MISC_REG_GPIO						 0xa490
+#define BP10GB_GPIO3_P0                              BIT_3
+#define BP10GB_GPIO3_P1                              BIT_7
+
+#define BP10GB_GPIO3_SET_P0                          BIT_11
+#define BP10GB_GPIO3_CLR_P0                          BIT_19
+#define BP10GB_GPIO3_OE_P0                           BIT_27
+
+#define BP10GB_GPIO3_SET_P1                          BIT_15
+#define BP10GB_GPIO3_CLR_P1                          BIT_23
+#define BP10GB_GPIO3_OE_P1                           BIT_31
+
+#define BP10GB_GPIO0_P1                              0x10
+#define BP10GB_GPIO0_P0                              0x1
+#define BP10GB_GPIO0_CLR_P0                          0x10000
+#define BP10GB_GPIO0_CLR_P1                          0x100000
+#define BP10GB_GPIO0_SET_P0                          0x100
+#define BP10GB_GPIO0_SET_P1                          0x1000
+
+#define BP10GB_GPIO0_OE_P1                           0x10000000
+#define BP10GB_GPIO0_OE_P0                           0x1000000
+
+#define BP10GB_MISC_REG_SPIO						 0xa4fc
+#define BP10GB_GPIO4_OE                              BIT_28
+#define BP10GB_GPIO5_OE                              BIT_29
+#define BP10GB_GPIO4_CLR                             BIT_20
+#define BP10GB_GPIO5_CLR                             BIT_21
+#define BP10GB_GPIO4_SET                             BIT_12
+#define BP10GB_GPIO5_SET                             BIT_13
+#define BP10GB_GPIO4                                 BIT_4
+#define BP10GB_GPIO5                                 BIT_5
+
+#define BP10GB_MCLK_DIR  BP10GB_GPIO5_OE
+#define BP10GB_MDIO_DIR  BP10GB_GPIO4_OE
+
+#define BP10GB_MCLK_DATA BP10GB_GPIO5
+#define BP10GB_MDIO_DATA BP10GB_GPIO4
+
+#define BP10GB_MCLK_SET BP10GB_GPIO5_SET
+#define BP10GB_MDIO_SET BP10GB_GPIO4_SET
+
+#define BP10GB_MCLK_CLR BP10GB_GPIO5_CLR
+#define BP10GB_MDIO_CLR BP10GB_GPIO4_CLR
+
+#define BP10GB_WRITE_REG(a, reg, value) \
+	(writel((value), (void *)(((a)->mem_map) + BP10GB_##reg)))
+
+#define BP10GB_READ_REG(a, reg) ( \
+	readl((void *)((a)->mem_map) + BP10GB_##reg))
+
+#endif
+
+int bp_proc_create(void);
diff --git a/drivers/staging/silicom/bp_proc.c b/drivers/staging/silicom/bp_proc.c
new file mode 100644
index 00000000000..6ad4b27472e
--- /dev/null
+++ b/drivers/staging/silicom/bp_proc.c
@@ -0,0 +1,1350 @@
+/******************************************************************************/
+/*                                                                            */
+/* Copyright (c) 2004-2006 Silicom, Ltd                                       */
+/* All rights reserved.                                                       */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/******************************************************************************/
+
+#include <linux/version.h>
+#if defined(CONFIG_SMP) && ! defined(__SMP__)
+#define __SMP__
+#endif
+
+#include <linux/proc_fs.h>
+#include <linux/netdevice.h>
+#include <asm/uaccess.h>
+//#include <linux/smp_lock.h>
+#include "bp_mod.h"
+
+#define BP_PROC_DIR "bypass"
+//#define BYPASS_SUPPORT "bypass"
+
+#ifdef  BYPASS_SUPPORT
+
+#define GPIO6_SET_ENTRY_SD           "gpio6_set"
+#define GPIO6_CLEAR_ENTRY_SD         "gpio6_clear"
+
+#define GPIO7_SET_ENTRY_SD           "gpio7_set"
+#define GPIO7_CLEAR_ENTRY_SD         "gpio7_clear"
+
+#define PULSE_SET_ENTRY_SD            "pulse_set"
+#define ZERO_SET_ENTRY_SD            "zero_set"
+#define PULSE_GET1_ENTRY_SD            "pulse_get1"
+#define PULSE_GET2_ENTRY_SD            "pulse_get2"
+
+#define CMND_ON_ENTRY_SD              "cmnd_on"
+#define CMND_OFF_ENTRY_SD             "cmnd_off"
+#define RESET_CONT_ENTRY_SD           "reset_cont"
+
+ /*COMMANDS*/
+#define BYPASS_INFO_ENTRY_SD     "bypass_info"
+#define BYPASS_SLAVE_ENTRY_SD    "bypass_slave"
+#define BYPASS_CAPS_ENTRY_SD     "bypass_caps"
+#define WD_SET_CAPS_ENTRY_SD     "wd_set_caps"
+#define BYPASS_ENTRY_SD          "bypass"
+#define BYPASS_CHANGE_ENTRY_SD   "bypass_change"
+#define BYPASS_WD_ENTRY_SD       "bypass_wd"
+#define WD_EXPIRE_TIME_ENTRY_SD  "wd_expire_time"
+#define RESET_BYPASS_WD_ENTRY_SD "reset_bypass_wd"
+#define DIS_BYPASS_ENTRY_SD      "dis_bypass"
+#define BYPASS_PWUP_ENTRY_SD     "bypass_pwup"
+#define BYPASS_PWOFF_ENTRY_SD     "bypass_pwoff"
+#define STD_NIC_ENTRY_SD         "std_nic"
+#define STD_NIC_ENTRY_SD         "std_nic"
+#define TAP_ENTRY_SD             "tap"
+#define TAP_CHANGE_ENTRY_SD      "tap_change"
+#define DIS_TAP_ENTRY_SD         "dis_tap"
+#define TAP_PWUP_ENTRY_SD        "tap_pwup"
+#define TWO_PORT_LINK_ENTRY_SD   "two_port_link"
+#define WD_EXP_MODE_ENTRY_SD     "wd_exp_mode"
+#define WD_AUTORESET_ENTRY_SD    "wd_autoreset"
+#define TPL_ENTRY_SD             "tpl"
+#define WAIT_AT_PWUP_ENTRY_SD    "wait_at_pwup"
+#define HW_RESET_ENTRY_SD        "hw_reset"
+#define DISC_ENTRY_SD             "disc"
+#define DISC_CHANGE_ENTRY_SD      "disc_change"
+#define DIS_DISC_ENTRY_SD         "dis_disc"
+#define DISC_PWUP_ENTRY_SD        "disc_pwup"
+#endif				//bypass_support
+static struct proc_dir_entry *bp_procfs_dir;
+
+static struct proc_dir_entry *proc_getdir(char *name,
+					  struct proc_dir_entry *proc_dir)
+{
+	struct proc_dir_entry *pde = proc_dir;
+	for (pde = pde->subdir; pde; pde = pde->next) {
+		if (pde->namelen && (strcmp(name, pde->name) == 0)) {
+			/* directory exists */
+			break;
+		}
+	}
+	if (pde == (struct proc_dir_entry *)0) {
+		/* create the directory */
+		pde = create_proc_entry(name, S_IFDIR, proc_dir);
+		if (pde == (struct proc_dir_entry *)0) {
+			return (pde);
+		}
+	}
+	return (pde);
+}
+
+#ifdef BYPASS_SUPPORT
+
+int
+bypass_proc_create_entry_sd(struct pfs_unit *pfs_unit_curr,
+			    char *proc_name,
+			    write_proc_t * write_proc,
+			    read_proc_t * read_proc,
+			    struct proc_dir_entry *parent_pfs, void *data)
+{
+	strcpy(pfs_unit_curr->proc_name, proc_name);
+	pfs_unit_curr->proc_entry = create_proc_entry(pfs_unit_curr->proc_name,
+						      S_IFREG | S_IRUSR |
+						      S_IWUSR | S_IRGRP |
+						      S_IROTH, parent_pfs);
+	if (pfs_unit_curr->proc_entry == 0) {
+
+		return -1;
+	}
+
+	pfs_unit_curr->proc_entry->read_proc = read_proc;
+	pfs_unit_curr->proc_entry->write_proc = write_proc;
+	pfs_unit_curr->proc_entry->data = data;
+
+	return 0;
+
+}
+
+int
+get_bypass_info_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+	int len = 0;
+
+	len += sprintf(page, "Name\t\t\t%s\n", pbp_device_block->bp_name);
+	len +=
+	    sprintf(page + len, "Firmware version\t0x%x\n",
+		    pbp_device_block->bp_fw_ver);
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_slave_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	struct pci_dev *pci_slave_dev = pbp_device_block->bp_slave;
+	struct net_device *net_slave_dev;
+	int len = 0;
+
+	if (is_bypass_fn(pbp_device_block)) {
+		net_slave_dev = pci_get_drvdata(pci_slave_dev);
+		if (net_slave_dev)
+			len = sprintf(page, "%s\n", net_slave_dev->name);
+		else
+			len = sprintf(page, "fail\n");
+	} else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_caps_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_caps_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "-1\n");
+	else
+		len = sprintf(page, "0x%x\n", ret);
+	*eof = 1;
+	return len;
+
+}
+
+int
+get_wd_set_caps_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_wd_set_caps_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "-1\n");
+	else
+		len = sprintf(page, "0x%x\n", ret);
+	*eof = 1;
+	return len;
+}
+
+int
+set_bypass_pfs(struct file *file, const char *buffer,
+	       unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_bypass_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_tap_pfs(struct file *file, const char *buffer,
+	    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_tap_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+set_disc_pfs(struct file *file, const char *buffer,
+	     unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_disc_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+get_bypass_pfs(char *page, char **start, off_t off, int count,
+	       int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_tap_pfs(char *page, char **start, off_t off, int count,
+	    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tap_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_disc_pfs(char *page, char **start, off_t off, int count,
+	     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_disc_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_change_pfs(char *page, char **start, off_t off, int count,
+		      int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_change_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_tap_change_pfs(char *page, char **start, off_t off, int count,
+		   int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tap_change_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_disc_change_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_disc_change_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_bypass_wd_pfs(struct file *file, const char *buffer,
+		  unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	unsigned int timeout = 0;
+	char *timeout_ptr = kbuf;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	timeout_ptr = kbuf;
+	timeout = atoi(&timeout_ptr);
+
+	set_bypass_wd_fn(pbp_device_block, timeout);
+
+	return count;
+}
+
+int
+get_bypass_wd_pfs(char *page, char **start, off_t off, int count,
+		  int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0, timeout = 0;
+
+	ret = get_bypass_wd_fn(pbp_device_block, &timeout);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (timeout == -1)
+		len = sprintf(page, "unknown\n");
+	else if (timeout == 0)
+		len = sprintf(page, "disable\n");
+	else
+		len = sprintf(page, "%d\n", timeout);
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_wd_expire_time_pfs(char *page, char **start, off_t off, int count,
+		       int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0, timeout = 0;
+
+	ret = get_wd_expire_time_fn(pbp_device_block, &timeout);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (timeout == -1)
+		len = sprintf(page, "expire\n");
+	else if (timeout == 0)
+		len = sprintf(page, "disable\n");
+
+	else
+		len = sprintf(page, "%d\n", timeout);
+	*eof = 1;
+	return len;
+}
+
+int
+get_tpl_pfs(char *page, char **start, off_t off, int count,
+	    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tpl_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+#ifdef PMC_FIX_FLAG
+int
+get_wait_at_pwup_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bp_wait_at_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_hw_reset_pfs(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bp_hw_reset_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 1)
+		len = sprintf(page, "on\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+
+	*eof = 1;
+	return len;
+}
+
+#endif				/*PMC_WAIT_FLAG */
+
+int
+reset_bypass_wd_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = reset_bypass_wd_timer_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "disable\n");
+	else if (ret == 1)
+		len = sprintf(page, "success\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_dis_bypass_pfs(struct file *file, const char *buffer,
+		   unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_dis_bypass_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_dis_tap_pfs(struct file *file, const char *buffer,
+		unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_dis_tap_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+set_dis_disc_pfs(struct file *file, const char *buffer,
+		 unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_dis_disc_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+get_dis_bypass_pfs(char *page, char **start, off_t off, int count,
+		   int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_dis_bypass_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_dis_tap_pfs(char *page, char **start, off_t off, int count,
+		int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_dis_tap_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_dis_disc_pfs(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_dis_disc_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_bypass_pwup_pfs(struct file *file, const char *buffer,
+		    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_bypass_pwup_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_bypass_pwoff_pfs(struct file *file, const char *buffer,
+		     unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_bypass_pwoff_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+set_tap_pwup_pfs(struct file *file, const char *buffer,
+		 unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_tap_pwup_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+set_disc_pwup_pfs(struct file *file, const char *buffer,
+		  unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tap_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tap_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tap_param = 0;
+
+	set_disc_pwup_fn(pbp_device_block, tap_param);
+
+	return count;
+}
+
+int
+get_bypass_pwup_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_bypass_pwoff_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_bypass_pwoff_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_tap_pwup_pfs(char *page, char **start, off_t off, int count,
+		 int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_tap_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_disc_pwup_pfs(char *page, char **start, off_t off, int count,
+		  int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_disc_pwup_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_std_nic_pfs(struct file *file, const char *buffer,
+		unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		bypass_param = 0;
+
+	set_std_nic_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+get_std_nic_pfs(char *page, char **start, off_t off, int count,
+		int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_std_nic_fn(pbp_device_block);
+	if (ret == BP_NOT_CAP)
+		len = sprintf(page, "fail\n");
+	else if (ret == 0)
+		len = sprintf(page, "off\n");
+	else
+		len = sprintf(page, "on\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+get_wd_exp_mode_pfs(char *page, char **start, off_t off, int count,
+		    int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_wd_exp_mode_fn(pbp_device_block);
+	if (ret == 1)
+		len = sprintf(page, "tap\n");
+	else if (ret == 0)
+		len = sprintf(page, "bypass\n");
+	else if (ret == 2)
+		len = sprintf(page, "disc\n");
+
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_wd_exp_mode_pfs(struct file *file, const char *buffer,
+		    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int bypass_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "tap") == 0)
+		bypass_param = 1;
+	else if (strcmp(kbuf, "bypass") == 0)
+		bypass_param = 0;
+	else if (strcmp(kbuf, "disc") == 0)
+		bypass_param = 2;
+
+	set_wd_exp_mode_fn(pbp_device_block, bypass_param);
+
+	return count;
+}
+
+int
+get_wd_autoreset_pfs(char *page, char **start, off_t off, int count,
+		     int *eof, void *data)
+{
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int len = 0, ret = 0;
+
+	ret = get_wd_autoreset_fn(pbp_device_block);
+	if (ret >= 0)
+		len = sprintf(page, "%d\n", ret);
+	else
+		len = sprintf(page, "fail\n");
+
+	*eof = 1;
+	return len;
+}
+
+int
+set_wd_autoreset_pfs(struct file *file, const char *buffer,
+		     unsigned long count, void *data)
+{
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+	u32 timeout = 0;
+	char *timeout_ptr = kbuf;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	timeout_ptr = kbuf;
+	timeout = atoi(&timeout_ptr);
+
+	set_wd_autoreset_fn(pbp_device_block, timeout);
+
+	return count;
+}
+
+int
+set_tpl_pfs(struct file *file, const char *buffer,
+	    unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tpl_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tpl_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tpl_param = 0;
+
+	set_tpl_fn(pbp_device_block, tpl_param);
+
+	return count;
+}
+
+#ifdef PMC_FIX_FLAG
+int
+set_wait_at_pwup_pfs(struct file *file, const char *buffer,
+		     unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tpl_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tpl_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tpl_param = 0;
+
+	set_bp_wait_at_pwup_fn(pbp_device_block, tpl_param);
+
+	return count;
+}
+
+int
+set_hw_reset_pfs(struct file *file, const char *buffer,
+		 unsigned long count, void *data)
+{
+
+	char kbuf[256];
+	bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
+
+	int tpl_param = 0, length = 0;
+
+	if (count > (sizeof(kbuf) - 1))
+		return -1;
+
+	if (copy_from_user(&kbuf, buffer, count)) {
+		return -1;
+	}
+
+	kbuf[count] = '\0';
+	length = strlen(kbuf);
+	if (kbuf[length - 1] == '\n')
+		kbuf[--length] = '\0';
+
+	if (strcmp(kbuf, "on") == 0)
+		tpl_param = 1;
+	else if (strcmp(kbuf, "off") == 0)
+		tpl_param = 0;
+
+	set_bp_hw_reset_fn(pbp_device_block, tpl_param);
+
+	return count;
+}
+
+#endif				/*PMC_FIX_FLAG */
+
+int bypass_proc_create_dev_sd(bpctl_dev_t * pbp_device_block)
+{
+	struct bypass_pfs_sd *current_pfs = &(pbp_device_block->bypass_pfs_set);
+	static struct proc_dir_entry *procfs_dir = NULL;
+	int ret = 0;
+
+	sprintf(current_pfs->dir_name, "bypass_%s", dev->name);
+
+	if (!bp_procfs_dir)
+		return -1;
+
+	/* create device proc dir */
+	procfs_dir = proc_getdir(current_pfs->dir_name, bp_procfs_dir);
+	if (procfs_dir == 0) {
+		printk(KERN_DEBUG "Could not create procfs directory %s\n",
+		       current_pfs->dir_name);
+		return -1;
+	}
+	current_pfs->bypass_entry = procfs_dir;
+
+	if (bypass_proc_create_entry(&(current_pfs->bypass_info), BYPASS_INFO_ENTRY_SD, NULL,	/* write */
+				     get_bypass_info_pfs,	/* read  */
+				     procfs_dir, pbp_device_block))
+		ret = -1;
+
+	if (pbp_device_block->bp_caps & SW_CTL_CAP) {
+
+		/* Create set param proc's */
+		if (bypass_proc_create_entry_sd(&(current_pfs->bypass_slave), BYPASS_SLAVE_ENTRY_SD, NULL,	/* write */
+						get_bypass_slave_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->bypass_caps), BYPASS_CAPS_ENTRY_SD, NULL,	/* write */
+						get_bypass_caps_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_set_caps), WD_SET_CAPS_ENTRY_SD, NULL,	/* write */
+						get_wd_set_caps_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+		if (bypass_proc_create_entry_sd(&(current_pfs->bypass_wd), BYPASS_WD_ENTRY_SD, set_bypass_wd_pfs,	/* write */
+						get_bypass_wd_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_expire_time), WD_EXPIRE_TIME_ENTRY_SD, NULL,	/* write */
+						get_wd_expire_time_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->reset_bypass_wd), RESET_BYPASS_WD_ENTRY_SD, NULL,	/* write */
+						reset_bypass_wd_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->std_nic), STD_NIC_ENTRY_SD, set_std_nic_pfs,	/* write */
+						get_std_nic_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (pbp_device_block->bp_caps & BP_CAP) {
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass), BYPASS_ENTRY_SD, set_bypass_pfs,	/* write */
+							get_bypass_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->dis_bypass), DIS_BYPASS_ENTRY_SD, set_dis_bypass_pfs,	/* write */
+							get_dis_bypass_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwup), BYPASS_PWUP_ENTRY_SD, set_bypass_pwup_pfs,	/* write */
+							get_bypass_pwup_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwoff), BYPASS_PWOFF_ENTRY_SD, set_bypass_pwoff_pfs,	/* write */
+							get_bypass_pwoff_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->bypass_change), BYPASS_CHANGE_ENTRY_SD, NULL,	/* write */
+							get_bypass_change_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+		}
+
+		if (pbp_device_block->bp_caps & TAP_CAP) {
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap), TAP_ENTRY_SD, set_tap_pfs,	/* write */
+							get_tap_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_TAP_ENTRY_SD, set_dis_tap_pfs,	/* write */
+							get_dis_tap_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), TAP_PWUP_ENTRY_SD, set_tap_pwup_pfs,	/* write */
+							get_tap_pwup_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), TAP_CHANGE_ENTRY_SD, NULL,	/* write */
+							get_tap_change_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+		}
+		if (pbp_device_block->bp_caps & DISC_CAP) {
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap), DISC_ENTRY_SD, set_disc_pfs,	/* write */
+							get_disc_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+#if 1
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_DISC_ENTRY_SD, set_dis_disc_pfs,	/* write */
+							get_dis_disc_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+#endif
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), DISC_PWUP_ENTRY_SD, set_disc_pwup_pfs,	/* write */
+							get_disc_pwup_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+
+			if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), DISC_CHANGE_ENTRY_SD, NULL,	/* write */
+							get_disc_change_pfs,	/* read  */
+							procfs_dir,
+							pbp_device_block))
+				ret = -1;
+		}
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_exp_mode), WD_EXP_MODE_ENTRY_SD, set_wd_exp_mode_pfs,	/* write */
+						get_wd_exp_mode_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+		if (bypass_proc_create_entry_sd(&(current_pfs->wd_autoreset), WD_AUTORESET_ENTRY_SD, set_wd_autoreset_pfs,	/* write */
+						get_wd_autoreset_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+		if (bypass_proc_create_entry_sd(&(current_pfs->tpl), TPL_ENTRY_SD, set_tpl_pfs,	/* write */
+						get_tpl_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+#ifdef PMC_FIX_FLAG
+		if (bypass_proc_create_entry_sd(&(current_pfs->tpl), WAIT_AT_PWUP_ENTRY_SD, set_wait_at_pwup_pfs,	/* write */
+						get_wait_at_pwup_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+		if (bypass_proc_create_entry_sd(&(current_pfs->tpl), HW_RESET_ENTRY_SD, set_hw_reset_pfs,	/* write */
+						get_hw_reset_pfs,	/* read  */
+						procfs_dir, pbp_device_block))
+			ret = -1;
+
+#endif
+
+	}
+	if (ret < 0)
+		printk(KERN_DEBUG "Create proc entry failed\n");
+
+	return ret;
+}
+
+int bypass_proc_remove_dev_sd(bpctl_dev_t * pbp_device_block)
+{
+
+	struct bypass_pfs_sd *current_pfs = &pbp_device_block->bypass_pfs_set;
+	struct proc_dir_entry *pde = current_pfs->bypass_entry, *pde_curr =
+	    NULL;
+	char name[256];
+
+	for (pde = pde->subdir; pde;) {
+		strcpy(name, pde->name);
+		pde_curr = pde;
+		pde = pde->next;
+		remove_proc_entry(name, current_pfs->bypass_entry);
+	}
+	if (!pde)
+		remove_proc_entry(current_pfs->dir_name, bp_procfs_dir);
+
+	return 0;
+}
+
+#endif				/* BYPASS_SUPPORT */
diff --git a/drivers/staging/silicom/bypass.h b/drivers/staging/silicom/bypass.h
new file mode 100644
index 00000000000..08fa7a0fc8d
--- /dev/null
+++ b/drivers/staging/silicom/bypass.h
@@ -0,0 +1,202 @@
+/******************************************************************************/
+/*                                                                            */
+/* Bypass Control utility, Copyright (c) 2005 Silicom                         */
+/* All rights reserved.                                                       */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/******************************************************************************/
+
+#ifndef BYPASS_H
+#define BYPASS_H
+
+/* Bypass related */
+
+#define SYNC_CMD_VAL               2	/* 10b */
+#define SYNC_CMD_LEN               2
+
+#define WR_CMD_VAL                 2	/* 10b */
+#define WR_CMD_LEN                 2
+
+#define RD_CMD_VAL                 1	/* 10b */
+#define RD_CMD_LEN                 2
+
+#define ADDR_CMD_LEN               4
+
+#define WR_DATA_LEN                8
+#define RD_DATA_LEN                8
+
+#define PIC_SIGN_REG_ADDR          0x7
+#define PIC_SIGN_VALUE         0xcd
+
+#define STATUS_REG_ADDR           0
+#define WDT_EN_MASK            0x01	/* BIT_0 */
+#define CMND_EN_MASK           0x02	/* BIT_1 */
+#define DIS_BYPASS_CAP_MASK    0x04	/* BIT_2    Bypass Cap is disable*/
+#define DFLT_PWRON_MASK        0x08	/* BIT_3 */
+#define BYPASS_OFF_MASK        0x10	/* BIT_4 */
+#define BYPASS_FLAG_MASK       0x20	/* BIT_5 */
+#define STD_NIC_MASK           (DIS_BYPASS_CAP_MASK | BYPASS_OFF_MASK | DFLT_PWRON_MASK)
+#define WD_EXP_FLAG_MASK       0x40	/* BIT_6 */
+#define DFLT_PWROFF_MASK       0x80	/* BIT_7 */
+#define STD_NIC_PWOFF_MASK     (DIS_BYPASS_CAP_MASK | BYPASS_OFF_MASK | DFLT_PWRON_MASK | DFLT_PWROFF_MASK)
+
+#define PRODUCT_CAP_REG_ADDR   0x5
+#define BYPASS_SUPPORT_MASK    0x01	/* BIT_0 */
+#define TAP_SUPPORT_MASK       0x02	/* BIT_1 */
+#define NORMAL_UNSUPPORT_MASK  0x04	/* BIT_2 */
+#define DISC_SUPPORT_MASK      0x08	/* BIT_3 */
+#define TPL2_SUPPORT_MASK      0x10	/* BIT_4 */
+#define DISC_PORT_SUPPORT_MASK 0x20	/* BIT_5 */
+
+#define STATUS_TAP_REG_ADDR    0x6
+#define WDTE_TAP_BPN_MASK      0x01	/* BIT_1    1 when wdt expired -> TAP, 0 - Bypass */
+#define DIS_TAP_CAP_MASK       0x04	/* BIT_2    TAP Cap is disable*/
+#define DFLT_PWRON_TAP_MASK    0x08	/* BIT_3    */
+#define TAP_OFF_MASK           0x10	/* BIT_4    */
+#define TAP_FLAG_MASK          0x20	/* BIT_5    */
+#define TX_DISA_MASK            0x40
+#define TX_DISB_MASK            0x80
+
+#define STD_NIC_TAP_MASK       (DIS_TAP_CAP_MASK | TAP_OFF_MASK | DFLT_PWRON_TAP_MASK)
+
+#define STATUS_DISC_REG_ADDR    13
+#define WDTE_DISC_BPN_MASK      0x01	/* BIT_0    1 when wdt expired -> TAP, 0 - Bypass */
+#define STD_NIC_ON_MASK         0x02	/* BIT_1    */
+#define DIS_DISC_CAP_MASK       0x04	/* BIT_2    TAP Cap is disable*/
+#define DFLT_PWRON_DISC_MASK    0x08	/* BIT_3    */
+#define DISC_OFF_MASK           0x10	/* BIT_4    */
+#define DISC_FLAG_MASK          0x20	/* BIT_5    */
+#define TPL2_FLAG_MASK          0x40	/* BIT_6    */
+#define STD_NIC_DISC_MASK       DIS_DISC_CAP_MASK
+
+#define CONT_CONFIG_REG_ADDR    12
+#define EN_HW_RESET_MASK       0x2	/* BIT_1 */
+#define WAIT_AT_PWUP_MASK      0x1	/* BIT_0 */
+
+#define VER_REG_ADDR               0x1
+#define BP_FW_VER_A0         0xa0
+#define BP_FW_VER_A1         0xa1
+
+#define INT_VER_MASK           0xf0
+#define EXT_VER_MASK           0xf
+/* */
+#define PXG2BPI_VER            0x0
+#define PXG2TBPI_VER           0x1
+#define PXE2TBPI_VER           0x2
+#define PXG4BPFI_VER           0x4
+#define BP_FW_EXT_VER7         0x6
+#define BP_FW_EXT_VER8         0x8
+#define BP_FW_EXT_VER9         0x9
+
+#define OLD_IF_VER              -1
+
+#define CMND_REG_ADDR              10	/* 1010b */
+#define WDT_REG_ADDR               4
+#define TMRL_REG_ADDR              2
+#define TMRH_REG_ADDR              3
+
+/* NEW_FW */
+#define WDT_INTERVAL               1	/* 5     //8   */
+#define WDT_CMND_INTERVAL          200	/* 50          */
+#define CMND_INTERVAL              200	/* 100    usec */
+#define PULSE_TIME                 100
+
+/* OLD_FW */
+#define INIT_CMND_INTERVAL         40
+#define PULSE_INTERVAL             5
+#define WDT_TIME_CNT               3
+
+/* Intel Commands */
+
+#define CMND_OFF_INT               0xf
+#define PWROFF_BYPASS_ON_INT       0x5
+#define BYPASS_ON_INT              0x6
+#define DIS_BYPASS_CAP_INT         0x4
+#define RESET_WDT_INT              0x1
+
+/* Intel timing */
+
+#define BYPASS_DELAY_INT           4	/* msec */
+#define CMND_INTERVAL_INT          2	/* msec */
+
+/* Silicom Commands */
+#define CMND_ON                    0x4
+#define CMND_OFF                   0x2
+#define BYPASS_ON                  0xa
+#define BYPASS_OFF                 0x8
+#define PORT_LINK_EN               0xe
+#define PORT_LINK_DIS              0xc
+#define WDT_ON                     0x10	/* 0x1f (11111) - max */
+#define TIMEOUT_UNIT           100
+#define TIMEOUT_MAX_STEP       15
+#define WDT_TIMEOUT_MIN        100	/*  msec */
+#define WDT_TIMEOUT_MAX        3276800	/*  msec */
+#define WDT_AUTO_MIN_INT           500
+#define WDT_TIMEOUT_DEF        WDT_TIMEOUT_MIN
+#define WDT_OFF                    0x6
+#define WDT_RELOAD                 0x9
+#define RESET_CONT                 0x20
+#define DIS_BYPASS_CAP             0x22
+#define EN_BYPASS_CAP              0x24
+#define BYPASS_STATE_PWRON         0x26
+#define NORMAL_STATE_PWRON         0x28
+#define BYPASS_STATE_PWROFF        0x27
+#define NORMAL_STATE_PWROFF        0x29
+#define TAP_ON                     0xb
+#define TAP_OFF                    0x9
+#define TAP_STATE_PWRON            0x2a
+#define DIS_TAP_CAP                0x2c
+#define EN_TAP_CAP                 0x2e
+#define STD_NIC_OFF       0x86
+#define STD_NIC_ON       0x84
+#define DISC_ON           0x85
+#define DISC_OFF          0x8a
+#define DISC_STATE_PWRON  0x87
+#define DIS_DISC_CAP      0x88
+#define EN_DISC_CAP       0x89
+#define TPL2_ON                    0x8c
+#define TPL2_OFF                   0x8b
+#define BP_WAIT_AT_PWUP_EN        0x80
+#define BP_WAIT_AT_PWUP_DIS       0x81
+#define BP_HW_RESET_EN             0x82
+#define BP_HW_RESET_DIS            0x83
+
+#define TX_DISA                0x8d
+#define TX_DISB                0x8e
+#define TX_ENA                 0xA0
+#define TX_ENB                 0xA1
+
+#define TX_DISA_PWRUP          0xA2
+#define TX_DISB_PWRUP          0xA3
+#define TX_ENA_PWRUP           0xA4
+#define TX_ENB_PWRUP           0xA5
+
+#define BYPASS_CAP_DELAY           21	/* msec */
+#define DFLT_PWRON_DELAY           10	/* msec */
+#define LATCH_DELAY                13	/* msec */
+#define EEPROM_WR_DELAY             8	/* msec */
+
+#define BP_LINK_MON_DELAY          4	/* sec */
+
+#define BP_FW_EXT_VER0                 0xa0
+#define BP_FW_EXT_VER1                 0xa1
+#define BP_FW_EXT_VER2                0xb1
+
+#define BP_OK        0
+#define BP_NOT_CAP  -1
+#define WDT_STATUS_EXP -2
+#define WDT_STATUS_UNKNOWN -1
+#define WDT_STATUS_EN 1
+#define WDT_STATUS_DIS 0
+
+#ifdef BP_SELF_TEST
+#define ETH_P_BPTEST 0xabba
+
+#define BPTEST_DATA_LEN 60
+#endif
+
+#endif				/* BYPASS_H */
diff --git a/drivers/staging/silicom/bypasslib/Makefile b/drivers/staging/silicom/bypasslib/Makefile
new file mode 100644
index 00000000000..80e8b9bc935
--- /dev/null
+++ b/drivers/staging/silicom/bypasslib/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the Bypass network device drivers.
+#
+
+obj-$(CONFIG_SBYPASS) += bypass.o
+
diff --git a/drivers/staging/silicom/bypasslib/bp_ioctl.h b/drivers/staging/silicom/bypasslib/bp_ioctl.h
new file mode 100644
index 00000000000..040c6fa8d5a
--- /dev/null
+++ b/drivers/staging/silicom/bypasslib/bp_ioctl.h
@@ -0,0 +1,198 @@
+/******************************************************************************/
+/*                                                                            */
+/* bypass library, Copyright (c) 2004-2006 Silicom, Ltd                       */
+/* Corporation.                                                               */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/*                                                                            */
+/******************************************************************************/
+
+#ifndef BP_IOCTL_H
+#define BP_IOCTL_H
+
+#define BP_CAP                   0x01	//BIT_0
+#define BP_STATUS_CAP            0x02	//BIT_1
+#define BP_STATUS_CHANGE_CAP     0x04	//BIT_2
+#define SW_CTL_CAP               0x08	//BIT_3
+#define BP_DIS_CAP               0x10	//BIT_4
+#define BP_DIS_STATUS_CAP        0x20	//BIT_5
+#define STD_NIC_CAP              0x40	//BIT_6
+#define BP_PWOFF_ON_CAP          0x80	//BIT_7
+#define BP_PWOFF_OFF_CAP         0x0100	//BIT_8
+#define BP_PWOFF_CTL_CAP         0x0200	//BIT_9
+#define BP_PWUP_ON_CAP           0x0400	//BIT_10
+#define BP_PWUP_OFF_CAP          0x0800	//BIT_11
+#define BP_PWUP_CTL_CAP          0x1000	//BIT_12
+#define WD_CTL_CAP               0x2000	//BIT_13
+#define WD_STATUS_CAP            0x4000	//BIT_14
+#define WD_TIMEOUT_CAP           0x8000	//BIT_15
+#define TX_CTL_CAP               0x10000	//BIT_16
+#define TX_STATUS_CAP            0x20000	//BIT_17
+#define TAP_CAP                  0x40000	//BIT_18
+#define TAP_STATUS_CAP           0x80000	//BIT_19
+#define TAP_STATUS_CHANGE_CAP    0x100000	//BIT_20
+#define TAP_DIS_CAP              0x200000	//BIT_21
+#define TAP_DIS_STATUS_CAP       0x400000	//BIT_22
+#define TAP_PWUP_ON_CAP          0x800000	//BIT_23
+#define TAP_PWUP_OFF_CAP         0x1000000	//BIT 24
+#define TAP_PWUP_CTL_CAP         0x2000000	//BIT 25
+#define NIC_CAP_NEG              0x4000000	//BIT 26
+#define TPL_CAP                  0x8000000	//BIT 27
+#define DISC_CAP                 0x10000000	//BIT 28
+#define DISC_DIS_CAP             0x20000000	//BIT 29
+#define DISC_PWUP_CTL_CAP        0x40000000	//BIT 30
+
+#define WD_MIN_TIME_MASK(val)      (val & 0xf)
+#define WD_STEP_COUNT_MASK(val)    ((val & 0xf) << 5)
+#define WDT_STEP_TIME              0x10	//BIT_4
+
+#define WD_MIN_TIME_GET(desc)   (desc & 0xf)
+#define WD_STEP_COUNT_GET(desc) (desc>>5) & 0xf
+
+typedef enum {
+	IS_BYPASS = 1,
+	GET_BYPASS_SLAVE,
+	GET_BYPASS_CAPS,
+	GET_WD_SET_CAPS,
+	SET_BYPASS,
+	GET_BYPASS,
+	GET_BYPASS_CHANGE,
+	SET_BYPASS_WD,
+	GET_BYPASS_WD,
+	GET_WD_EXPIRE_TIME,
+	RESET_BYPASS_WD_TIMER,
+	SET_DIS_BYPASS,
+	GET_DIS_BYPASS,
+	SET_BYPASS_PWOFF,
+	GET_BYPASS_PWOFF,
+	SET_BYPASS_PWUP,
+	GET_BYPASS_PWUP,
+	SET_STD_NIC,
+	GET_STD_NIC,
+	SET_TX,
+	GET_TX,
+	SET_TAP,
+	GET_TAP,
+	GET_TAP_CHANGE,
+	SET_DIS_TAP,
+	GET_DIS_TAP,
+	SET_TAP_PWUP,
+	GET_TAP_PWUP,
+	SET_WD_EXP_MODE,
+	GET_WD_EXP_MODE,
+	SET_WD_AUTORESET,
+	GET_WD_AUTORESET,
+	SET_TPL,
+	GET_TPL,
+	SET_DISC,
+	GET_DISC,
+	GET_DISC_CHANGE,
+	SET_DIS_DISC,
+	GET_DIS_DISC,
+	SET_DISC_PWUP,
+	GET_DISC_PWUP,
+
+	GET_BYPASS_INFO = 100,
+	GET_BP_WAIT_AT_PWUP,
+	SET_BP_WAIT_AT_PWUP,
+	GET_BP_HW_RESET,
+	SET_BP_HW_RESET,
+} CMND_TYPE;
+
+typedef enum {
+	IF_SCAN_SD,
+	GET_DEV_NUM_SD,
+	IS_BYPASS_SD,
+	GET_BYPASS_SLAVE_SD,
+	GET_BYPASS_CAPS_SD,
+	GET_WD_SET_CAPS_SD,
+	SET_BYPASS_SD,
+	GET_BYPASS_SD,
+	GET_BYPASS_CHANGE_SD,
+	SET_BYPASS_WD_SD,
+	GET_BYPASS_WD_SD,
+	GET_WD_EXPIRE_TIME_SD,
+	RESET_BYPASS_WD_TIMER_SD,
+	SET_DIS_BYPASS_SD,
+	GET_DIS_BYPASS_SD,
+	SET_BYPASS_PWOFF_SD,
+	GET_BYPASS_PWOFF_SD,
+	SET_BYPASS_PWUP_SD,
+	GET_BYPASS_PWUP_SD,
+	SET_STD_NIC_SD,
+	GET_STD_NIC_SD,
+	SET_TX_SD,
+	GET_TX_SD,
+	SET_TAP_SD,
+	GET_TAP_SD,
+	GET_TAP_CHANGE_SD,
+	SET_DIS_TAP_SD,
+	GET_DIS_TAP_SD,
+	SET_TAP_PWUP_SD,
+	GET_TAP_PWUP_SD,
+	SET_WD_EXP_MODE_SD,
+	GET_WD_EXP_MODE_SD,
+	SET_WD_AUTORESET_SD,
+	GET_WD_AUTORESET_SD,
+	SET_TPL_SD,
+	GET_TPL_SD,
+	SET_DISC_SD,
+	GET_DISC_SD,
+	GET_DISC_CHANGE_SD,
+	SET_DIS_DISC_SD,
+	GET_DIS_DISC_SD,
+	SET_DISC_PWUP_SD,
+	GET_DISC_PWUP_SD,
+
+	GET_BYPASS_INFO_SD = 100,
+	GET_BP_WAIT_AT_PWUP_SD,
+	SET_BP_WAIT_AT_PWUP_SD,
+	GET_BP_HW_RESET_SD,
+	SET_BP_HW_RESET_SD,
+
+} CMND_TYPE_SD;
+
+#define SIOCGIFBYPASS SIOCDEVPRIVATE+10
+
+struct bp_info {
+	char prod_name[14];
+	unsigned char fw_ver;
+};
+
+/* for passing single values */
+struct if_bypass {
+	char if_name[IFNAMSIZ];
+	int cmd;
+	int data;
+};
+struct if_bypass_info {
+	char if_name[IFNAMSIZ];
+	char cmd;
+	struct bp_info bp_info;
+};
+
+/*
+* The major device number. We can't rely on dynamic
+* registration any more, because ioctls need to know
+* it.
+*/
+
+#define MAGIC_NUM 'J'
+
+/* for passing single values */
+struct bpctl_cmd {
+	int status;
+	int data[8];
+	int in_param[8];
+	int out_param[8];
+};
+
+#define IOCTL_TX_MSG(cmd) _IOWR(MAGIC_NUM, cmd, struct bpctl_cmd)
+
+#define DEVICE_NAME "bpctl"
+
+#endif
diff --git a/drivers/staging/silicom/bypasslib/bplibk.h b/drivers/staging/silicom/bypasslib/bplibk.h
new file mode 100644
index 00000000000..a1c85eec02f
--- /dev/null
+++ b/drivers/staging/silicom/bypasslib/bplibk.h
@@ -0,0 +1,47 @@
+/******************************************************************************/
+/*                                                                            */
+/* bypass library, Copyright (c) 2004 Silicom, Ltd                            */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/* bplib.h                                                                    */
+/*                                                                            */
+/******************************************************************************/
+#ifndef BYPASS_H
+#define BYPASS_H
+
+#include "bp_ioctl.h"
+#include "libbp_sd.h"
+
+#define IF_NAME            "eth"
+#define SILICOM_VID        0x1374
+#define SILICOM_BP_PID_MIN 0x24
+#define SILICOM_BP_PID_MAX 0x5f
+#define INTEL_PEG4BPII_PID  0x10a0
+#define INTEL_PEG4BPFII_PID 0x10a1
+
+#define PEGII_IF_SERIES(vid, pid) \
+        ((vid==0x8086)&& \
+        ((pid==INTEL_PEG4BPII_PID)||   \
+          (pid==INTEL_PEG4BPFII_PID)))
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10))
+#define pci_get_class pci_find_class
+
+#define pci_get_device pci_find_device
+
+#endif
+
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,10))
+#define EXPORT_SYMBOL_NOVERS EXPORT_SYMBOL
+#endif
+
+#ifdef BP_VENDOR_SUPPORT
+char *bp_desc_array[] =
+    { "e1000bp", "e1000bpe", "slcm5700", "bnx2xbp", "ixgbp", "ixgbpe", NULL };
+#endif
+
+#endif
diff --git a/drivers/staging/silicom/bypasslib/bypass.c b/drivers/staging/silicom/bypasslib/bypass.c
new file mode 100644
index 00000000000..527829d5813
--- /dev/null
+++ b/drivers/staging/silicom/bypasslib/bypass.c
@@ -0,0 +1,529 @@
+/******************************************************************************/
+/*                                                                            */
+/* bypass library, Copyright (c) 2004-2007 Silicom, Ltd                       */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/*                                                                            */
+/* bypass.c                                                                    */
+/*                                                                            */
+/******************************************************************************/
+
+#include <linux/version.h>
+#if defined(CONFIG_SMP) && ! defined(__SMP__)
+#define __SMP__
+#endif
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <asm/unistd.h>
+
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#include <linux/netdevice.h>	// struct device, and other headers
+#include <linux/kernel_stat.h>
+#include <linux/pci.h>
+#include <linux/rtnetlink.h>
+#include <linux/ethtool.h>
+
+#include <net/net_namespace.h>
+
+#include "bplibk.h"
+
+#define MOD_NAME "bypass"
+
+#define VERSION "\n"MOD_NAME" version 9.0.4\n"
+
+MODULE_AUTHOR("www.silicom.co.il");
+
+MODULE_LICENSE("GPL");
+
+int init_lib_module(void);
+void cleanup_lib_module(void);
+
+static int do_cmd(struct net_device *dev, struct ifreq *ifr, int cmd, int *data)
+{
+	int ret = -1;
+	struct if_bypass *bypass_cb;
+	static int (*ioctl) (struct net_device *, struct ifreq *, int);
+
+	bypass_cb = (struct if_bypass *)ifr;
+	bypass_cb->cmd = cmd;
+	bypass_cb->data = *data;
+	if ((dev->netdev_ops) && (ioctl = dev->netdev_ops->ndo_do_ioctl)) {
+		ret = ioctl(dev, ifr, SIOCGIFBYPASS);
+		*data = bypass_cb->data;
+	}
+
+	return ret;
+}
+
+static int doit(int cmd, int if_index, int *data)
+{
+	struct ifreq ifr;
+	int ret = -1;
+	struct net_device *dev;
+	struct net_device *n;
+	for_each_netdev_safe(&init_net, dev, n) {
+
+		if (dev->ifindex == if_index) {
+			ret = do_cmd(dev, &ifr, cmd, data);
+			if (ret < 0)
+				ret = -1;
+
+		}
+	}
+
+	return ret;
+}
+
+#define bp_symbol_get(fn_name) symbol_get(fn_name)
+#define bp_symbol_put(fn_name) symbol_put(fn_name)
+
+#define SET_BPLIB_INT_FN(fn_name, arg_type, arg, ret) \
+    ({ int (* fn_ex)(arg_type)=NULL; \
+    fn_ex=bp_symbol_get(fn_name##_sd); \
+       if(fn_ex) {  \
+        ret= fn_ex(arg); \
+       bp_symbol_put(fn_name##_sd); \
+       } else ret=-1; \
+    })
+
+#define  SET_BPLIB_INT_FN2(fn_name, arg_type, arg, arg_type1, arg1, ret) \
+    ({ int (* fn_ex)(arg_type,arg_type1)=NULL; \
+        fn_ex=bp_symbol_get(fn_name##_sd); \
+       if(fn_ex) {  \
+        ret= fn_ex(arg,arg1); \
+        bp_symbol_put(fn_name##_sd); \
+       } else ret=-1; \
+    })
+#define SET_BPLIB_INT_FN3(fn_name, arg_type, arg, arg_type1, arg1,arg_type2, arg2, ret) \
+    ({ int (* fn_ex)(arg_type,arg_type1, arg_type2)=NULL; \
+        fn_ex=bp_symbol_get(fn_name##_sd); \
+       if(fn_ex) {  \
+        ret= fn_ex(arg,arg1,arg2); \
+        bp_symbol_put(fn_name##_sd); \
+       } else ret=-1; \
+    })
+
+#define DO_BPLIB_GET_ARG_FN(fn_name,ioctl_val, if_index) \
+    ({    int data, ret=0; \
+            if(is_dev_sd(if_index)){ \
+            SET_BPLIB_INT_FN(fn_name, int, if_index, ret); \
+            return ret; \
+            }  \
+            return doit(ioctl_val,if_index, &data); \
+    })
+
+#define DO_BPLIB_SET_ARG_FN(fn_name,ioctl_val,if_index,arg) \
+    ({    int data, ret=0; \
+            if(is_dev_sd(if_index)){ \
+            SET_BPLIB_INT_FN2(fn_name, int, if_index, int, arg, ret); \
+            return ret; \
+            }  \
+	    data=arg; \
+            return doit(ioctl_val,if_index, &data); \
+    })
+
+static int is_dev_sd(int if_index)
+{
+	int ret = 0;
+	SET_BPLIB_INT_FN(is_bypass, int, if_index, ret);
+	return (ret >= 0 ? 1 : 0);
+}
+
+int is_bypass_dev(int if_index)
+{
+	struct pci_dev *pdev = NULL;
+	struct net_device *dev = NULL;
+	struct ifreq ifr;
+	int ret = 0, data = 0;
+
+	while ((pdev = pci_get_class(PCI_CLASS_NETWORK_ETHERNET << 8, pdev))) {
+		if ((dev = pci_get_drvdata(pdev)) != NULL)
+			if (((dev = pci_get_drvdata(pdev)) != NULL) &&
+			    (dev->ifindex == if_index)) {
+				if ((pdev->vendor == SILICOM_VID) &&
+				    (pdev->device >= SILICOM_BP_PID_MIN) &&
+				    (pdev->device <= SILICOM_BP_PID_MAX))
+					goto send_cmd;
+#if defined(BP_VENDOR_SUPPORT) && defined(ETHTOOL_GDRVINFO)
+				else {
+					struct ethtool_drvinfo info;
+					const struct ethtool_ops *ops =
+					    dev->ethtool_ops;
+					int k = 0;
+
+					if (ops->get_drvinfo) {
+						memset(&info, 0, sizeof(info));
+						info.cmd = ETHTOOL_GDRVINFO;
+						ops->get_drvinfo(dev, &info);
+						for (; bp_desc_array[k]; k++)
+							if (!
+							    (strcmp
+							     (bp_desc_array[k],
+							      info.driver)))
+								goto send_cmd;
+
+					}
+
+				}
+#endif
+				return -1;
+			}
+	}
+ send_cmd:
+	ret = do_cmd(dev, &ifr, IS_BYPASS, &data);
+	return (ret < 0 ? -1 : ret);
+}
+
+int is_bypass(int if_index)
+{
+	int ret = 0;
+	SET_BPLIB_INT_FN(is_bypass, int, if_index, ret);
+
+	if (ret < 0)
+		return is_bypass_dev(if_index);
+	return ret;
+}
+
+int get_bypass_slave(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bypass_slave, GET_BYPASS_SLAVE, if_index);
+}
+
+int get_bypass_caps(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bypass_caps, GET_BYPASS_CAPS, if_index);
+}
+
+int get_wd_set_caps(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_wd_set_caps, GET_WD_SET_CAPS, if_index);
+}
+
+int set_bypass(int if_index, int bypass_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_bypass, SET_BYPASS, if_index, bypass_mode);
+}
+
+int get_bypass(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bypass, GET_BYPASS, if_index);
+}
+
+int get_bypass_change(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bypass_change, GET_BYPASS_CHANGE, if_index);
+}
+
+int set_dis_bypass(int if_index, int dis_bypass)
+{
+	DO_BPLIB_SET_ARG_FN(set_dis_bypass, SET_DIS_BYPASS, if_index,
+			    dis_bypass);
+}
+
+int get_dis_bypass(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_dis_bypass, GET_DIS_BYPASS, if_index);
+}
+
+int set_bypass_pwoff(int if_index, int bypass_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_bypass_pwoff, SET_BYPASS_PWOFF, if_index,
+			    bypass_mode);
+}
+
+int get_bypass_pwoff(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bypass_pwoff, GET_BYPASS_PWOFF, if_index);
+}
+
+int set_bypass_pwup(int if_index, int bypass_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_bypass_pwup, SET_BYPASS_PWUP, if_index,
+			    bypass_mode);
+}
+
+int get_bypass_pwup(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bypass_pwup, GET_BYPASS_PWUP, if_index);
+}
+
+int set_bypass_wd(int if_index, int ms_timeout, int *ms_timeout_set)
+{
+	int data = ms_timeout, ret = 0;
+	if (is_dev_sd(if_index))
+		SET_BPLIB_INT_FN3(set_bypass_wd, int, if_index, int, ms_timeout,
+				  int *, ms_timeout_set, ret);
+	else {
+		ret = doit(SET_BYPASS_WD, if_index, &data);
+		if (ret > 0) {
+			*ms_timeout_set = ret;
+			ret = 0;
+		}
+	}
+	return ret;
+}
+
+int get_bypass_wd(int if_index, int *ms_timeout_set)
+{
+	int *data = ms_timeout_set, ret = 0;
+	if (is_dev_sd(if_index))
+		SET_BPLIB_INT_FN2(get_bypass_wd, int, if_index, int *,
+				  ms_timeout_set, ret);
+	else
+		ret = doit(GET_BYPASS_WD, if_index, data);
+	return ret;
+}
+
+int get_wd_expire_time(int if_index, int *ms_time_left)
+{
+	int *data = ms_time_left, ret = 0;
+	if (is_dev_sd(if_index))
+		SET_BPLIB_INT_FN2(get_wd_expire_time, int, if_index, int *,
+				  ms_time_left, ret);
+	else {
+		ret = doit(GET_WD_EXPIRE_TIME, if_index, data);
+		if ((ret == 0) && (*data != 0))
+			ret = 1;
+	}
+	return ret;
+}
+
+int reset_bypass_wd_timer(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(reset_bypass_wd_timer, RESET_BYPASS_WD_TIMER,
+			    if_index);
+}
+
+int set_std_nic(int if_index, int bypass_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_std_nic, SET_STD_NIC, if_index, bypass_mode);
+}
+
+int get_std_nic(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_std_nic, GET_STD_NIC, if_index);
+}
+
+int set_tx(int if_index, int tx_state)
+{
+	DO_BPLIB_SET_ARG_FN(set_tx, SET_TX, if_index, tx_state);
+}
+
+int get_tx(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_tx, GET_TX, if_index);
+}
+
+int set_tap(int if_index, int tap_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_tap, SET_TAP, if_index, tap_mode);
+}
+
+int get_tap(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_tap, GET_TAP, if_index);
+}
+
+int get_tap_change(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_tap_change, GET_TAP_CHANGE, if_index);
+}
+
+int set_dis_tap(int if_index, int dis_tap)
+{
+	DO_BPLIB_SET_ARG_FN(set_dis_tap, SET_DIS_TAP, if_index, dis_tap);
+}
+
+int get_dis_tap(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_dis_tap, GET_DIS_TAP, if_index);
+}
+
+int set_tap_pwup(int if_index, int tap_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_tap_pwup, SET_TAP_PWUP, if_index, tap_mode);
+}
+
+int get_tap_pwup(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_tap_pwup, GET_TAP_PWUP, if_index);
+}
+
+int set_bp_disc(int if_index, int disc_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_bp_disc, SET_DISC, if_index, disc_mode);
+}
+
+int get_bp_disc(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bp_disc, GET_DISC, if_index);
+}
+
+int get_bp_disc_change(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bp_disc_change, GET_DISC_CHANGE, if_index);
+}
+
+int set_bp_dis_disc(int if_index, int dis_disc)
+{
+	DO_BPLIB_SET_ARG_FN(set_bp_dis_disc, SET_DIS_DISC, if_index, dis_disc);
+}
+
+int get_bp_dis_disc(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bp_dis_disc, GET_DIS_DISC, if_index);
+}
+
+int set_bp_disc_pwup(int if_index, int disc_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_bp_disc_pwup, SET_DISC_PWUP, if_index,
+			    disc_mode);
+}
+
+int get_bp_disc_pwup(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_bp_disc_pwup, GET_DISC_PWUP, if_index);
+}
+
+int set_wd_exp_mode(int if_index, int mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_wd_exp_mode, SET_WD_EXP_MODE, if_index, mode);
+}
+
+int get_wd_exp_mode(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_wd_exp_mode, GET_WD_EXP_MODE, if_index);
+}
+
+int set_wd_autoreset(int if_index, int time)
+{
+	DO_BPLIB_SET_ARG_FN(set_wd_autoreset, SET_WD_AUTORESET, if_index, time);
+}
+
+int get_wd_autoreset(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_wd_autoreset, GET_WD_AUTORESET, if_index);
+}
+
+int set_tpl(int if_index, int tpl_mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_tpl, SET_TPL, if_index, tpl_mode);
+}
+
+int get_tpl(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_tpl, GET_TPL, if_index);
+}
+
+int set_bp_hw_reset(int if_index, int mode)
+{
+	DO_BPLIB_SET_ARG_FN(set_tpl, SET_BP_HW_RESET, if_index, mode);
+}
+
+int get_bp_hw_reset(int if_index)
+{
+	DO_BPLIB_GET_ARG_FN(get_tpl, GET_BP_HW_RESET, if_index);
+}
+
+int get_bypass_info(int if_index, struct bp_info *bp_info)
+{
+	int ret = 0;
+	if (is_dev_sd(if_index)) {
+		SET_BPLIB_INT_FN2(get_bypass_info, int, if_index,
+				  struct bp_info *, bp_info, ret);
+	} else {
+		static int (*ioctl) (struct net_device *, struct ifreq *, int);
+		struct net_device *dev;
+
+		struct net_device *n;
+		for_each_netdev_safe(&init_net, dev, n) {
+			if (dev->ifindex == if_index) {
+				struct if_bypass_info *bypass_cb;
+				struct ifreq ifr;
+
+				memset(&ifr, 0, sizeof(ifr));
+				bypass_cb = (struct if_bypass_info *)&ifr;
+				bypass_cb->cmd = GET_BYPASS_INFO;
+
+				if ((dev->netdev_ops) &&
+				    (ioctl = dev->netdev_ops->ndo_do_ioctl)) {
+					ret = ioctl(dev, &ifr, SIOCGIFBYPASS);
+				}
+
+				else
+					ret = -1;
+				if (ret == 0)
+					memcpy(bp_info, &bypass_cb->bp_info,
+					       sizeof(struct bp_info));
+				ret = (ret < 0 ? -1 : 0);
+				break;
+			}
+		}
+	}
+	return ret;
+}
+
+int init_lib_module()
+{
+
+	printk(VERSION);
+	return 0;
+}
+
+void cleanup_lib_module()
+{
+}
+
+EXPORT_SYMBOL_NOVERS(is_bypass);
+EXPORT_SYMBOL_NOVERS(get_bypass_slave);
+EXPORT_SYMBOL_NOVERS(get_bypass_caps);
+EXPORT_SYMBOL_NOVERS(get_wd_set_caps);
+EXPORT_SYMBOL_NOVERS(set_bypass);
+EXPORT_SYMBOL_NOVERS(get_bypass);
+EXPORT_SYMBOL_NOVERS(get_bypass_change);
+EXPORT_SYMBOL_NOVERS(set_dis_bypass);
+EXPORT_SYMBOL_NOVERS(get_dis_bypass);
+EXPORT_SYMBOL_NOVERS(set_bypass_pwoff);
+EXPORT_SYMBOL_NOVERS(get_bypass_pwoff);
+EXPORT_SYMBOL_NOVERS(set_bypass_pwup);
+EXPORT_SYMBOL_NOVERS(get_bypass_pwup);
+EXPORT_SYMBOL_NOVERS(set_bypass_wd);
+EXPORT_SYMBOL_NOVERS(get_bypass_wd);
+EXPORT_SYMBOL_NOVERS(get_wd_expire_time);
+EXPORT_SYMBOL_NOVERS(reset_bypass_wd_timer);
+EXPORT_SYMBOL_NOVERS(set_std_nic);
+EXPORT_SYMBOL_NOVERS(get_std_nic);
+EXPORT_SYMBOL_NOVERS(set_tx);
+EXPORT_SYMBOL_NOVERS(get_tx);
+EXPORT_SYMBOL_NOVERS(set_tap);
+EXPORT_SYMBOL_NOVERS(get_tap);
+EXPORT_SYMBOL_NOVERS(get_tap_change);
+EXPORT_SYMBOL_NOVERS(set_dis_tap);
+EXPORT_SYMBOL_NOVERS(get_dis_tap);
+EXPORT_SYMBOL_NOVERS(set_tap_pwup);
+EXPORT_SYMBOL_NOVERS(get_tap_pwup);
+EXPORT_SYMBOL_NOVERS(set_bp_disc);
+EXPORT_SYMBOL_NOVERS(get_bp_disc);
+EXPORT_SYMBOL_NOVERS(get_bp_disc_change);
+EXPORT_SYMBOL_NOVERS(set_bp_dis_disc);
+EXPORT_SYMBOL_NOVERS(get_bp_dis_disc);
+EXPORT_SYMBOL_NOVERS(set_bp_disc_pwup);
+EXPORT_SYMBOL_NOVERS(get_bp_disc_pwup);
+EXPORT_SYMBOL_NOVERS(set_wd_exp_mode);
+EXPORT_SYMBOL_NOVERS(get_wd_exp_mode);
+EXPORT_SYMBOL_NOVERS(set_wd_autoreset);
+EXPORT_SYMBOL_NOVERS(get_wd_autoreset);
+EXPORT_SYMBOL_NOVERS(set_tpl);
+EXPORT_SYMBOL_NOVERS(get_tpl);
+EXPORT_SYMBOL_NOVERS(set_bp_hw_reset);
+EXPORT_SYMBOL_NOVERS(get_bp_hw_reset);
+EXPORT_SYMBOL_NOVERS(get_bypass_info);
+
+module_init(init_lib_module);
+module_exit(cleanup_lib_module);
diff --git a/drivers/staging/silicom/bypasslib/libbp_sd.h b/drivers/staging/silicom/bypasslib/libbp_sd.h
new file mode 100644
index 00000000000..3b4f8364ed1
--- /dev/null
+++ b/drivers/staging/silicom/bypasslib/libbp_sd.h
@@ -0,0 +1,509 @@
+/******************************************************************************/
+/*                                                                            */
+/* bypass library, Copyright (c) 2004 Silicom, Ltd                            */
+/* Corporation.                                                               */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/* Ver 1.0.0                                                                  */
+/*                                                                            */
+/* libbypass.h                                                                */
+/*                                                                            */
+/******************************************************************************/
+
+/**
+ * is_bypass - check if device is a Bypass controlling device
+ * @if_index: network device index
+ *
+ * Output:
+ *  1 -  if device is bypass controlling device, 
+ *  0 -  if device is bypass slave device
+ * -1 -  device not support Bypass
+ **/
+int is_bypass_sd(int if_index);
+
+/**
+ * get_bypass_slave - get second port participate in the Bypass pair
+ * @if_index: network device index
+ *
+ * Output:
+ *  network device index of the slave device
+ * -1 - on failure (device not support Bypass or it's a slave device) 
+ **/
+int get_bypass_slave_sd(int if_index);
+
+/**
+ * get_bypass_caps - get second port participate in the Bypass pair
+ * @if_index: network device index
+ *
+ * Output:
+ * flags word on success;flag word is a 32-bit mask word with each bit defines different 
+ * capability as described bellow.
+ * Value of 1 for supporting this feature. 0 for not supporting this feature.
+ * -1 - on failure (if the device is not capable of the operation or not a Bypass device)
+ * Bit	feature	                description
+ * 
+ * 0	BP_CAP	                The interface is Bypass capable in general
+ * 
+ * 1	BP_STATUS_CAP	        The interface can report of the current Bypass mode
+ * 
+ * 2	BP_STATUS_CHANGE_CAP	The interface can report on a change to bypass mode from 
+ *                              the last time the mode was defined
+ * 
+ * 3	SW_CTL_CAP	            The interface is Software controlled capable for bypass/non bypass modes.
+ * 
+ * 4	BP_DIS_CAP	            The interface is capable of disabling the Bypass mode at all times. 
+ *                              This mode will retain its mode even during power loss and also after 
+ *                              power recovery. This will overcome on any bypass operation due to 
+ *                              watchdog timeout or set bypass command.
+ * 
+ * 5	BP_DIS_STATUS_CAP	    The interface can report of the current DIS_BP_CAP
+ * 
+ * 6	STD_NIC_CAP	            The interface is capable to be configured to operate as standard, non Bypass, 
+ *                              NIC interface (have direct connection to interfaces at all power modes)
+ * 
+ * 7	BP_PWOFF_NO_CAP	        The interface can be in Bypass mode at power off state
+ * 
+ * 8	BP_PWOFF_OFF_CAP	    The interface can disconnect the Bypass mode at power off state without 
+ *                              effecting all the other states of operation
+ * 
+ * 9	BP_PWOFF_CTL_CAP	    The behavior of the Bypass mode at Power-off state can be controlled by 
+ *                              software without effecting any other state
+ * 
+ *10    BP_PWUP_ON_CAP	        The interface can be in Bypass mode when power is turned on 
+ *                              (until the system take control of the bypass functionality)
+ * 
+ *11	BP_PWUP_OFF_CAP	        The interface can disconnect from Bypass mode when power is turned on 
+ *                              (until the system take control of the bypass functionality)
+ * 
+ *12	BP_PWUP_CTL_CAP	        The behavior of the Bypass mode at Power-up can be controlled by software
+ * 
+ *13	WD_CTL_CAP	            The interface has watchdog capabilities to turn to Bypass mode when not reset 
+ *                              for defined period of time.
+ * 
+ *14	WD_STATUS_CAP	        The interface can report on the watchdog status (Active/inactive)
+ * 
+ *15	WD_TIMEOUT_CAP	        The interface can report the time left till watchdog triggers to Bypass mode.
+ * 
+ *16-31 RESERVED	
+ *
+ * **/
+int get_bypass_caps_sd(int if_index);
+
+/**
+ * get_wd_set_caps - Obtain watchdog timer setting capabilities
+ * @if_index: network device index
+ *
+ * Output:
+ * 
+ * Set of numbers defining the various parameters of the watchdog capable 
+ * to be set to as described bellow.
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ * 
+ * Bit	feature	        description
+ * 
+ * 0-3	WD_MIN_TIME	    The interface WD minimal time period  in 100mS units
+ * 
+ * 4	WD_STEP_TIME	The steps of the WD timer in 
+ *                      0 - for linear steps (WD_MIN_TIME * X)
+ *                      1 - for multiply by 2 from previous step (WD_MIN_TIME * 2^X)
+ * 
+ * 5-8	WD_STEP_COUNT	Number of steps the WD timer supports in 2^X 
+ *                      (X bit available for defining the value)
+ * 
+ * 
+ * 
+ **/
+int get_wd_set_caps_sd(int if_index);
+
+/**
+ * set_bypass - set Bypass state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  bypass mode (1=on, 0=off) 
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support Bypass or it's a slave device) 
+ **/
+int set_bypass_sd(int if_index, int bypass_mode);
+
+/**
+ * get_bypass - Get Bypass mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support Bypass or it's a slave device) 
+ **/
+int get_bypass_sd(int if_index);
+
+/**
+ * get_bypass_change - Get change of Bypass mode state from last status check
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support Bypass or it's a slave device) 
+ **/
+int get_bypass_change_sd(int if_index);
+
+/**
+ * set_dis_bypass - Set Disable Bypass mode
+ * @if_index: network device index of the controlling device
+ * @dis_bypass: disable bypass(1=dis, 0=en)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int set_dis_bypass_sd(int if_index, int dis_bypass);
+
+/**
+ * get_dis_bypass - Get Disable Bypass mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (normal Bypass mode/ Disable bypass)
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int get_dis_bypass_sd(int if_index);
+
+/**
+ * set_bypass_pwoff - Set Bypass mode at power-off state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode: bypass mode setting at power off state (1=BP en, 0=BP Dis)
+ * Output:
+ *  0 - on success 
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int set_bypass_pwoff_sd(int if_index, int bypass_mode);
+
+/**
+ * get_bypass_pwoff - Get Bypass mode state at power-off state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable bypass at power off state / normal Bypass mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int get_bypass_pwoff_sd(int if_index);
+
+/**
+ * set_bypass_pwup - Set Bypass mode at power-up state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode: bypass mode setting at power up state (1=BP en, 0=BP Dis)
+ * Output:
+ *  0 - on success 
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int set_bypass_pwup_sd(int if_index, int bypass_mode);
+
+/**
+ * get_bypass_pwup - Get Bypass mode state at power-up state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable bypass at power up state / normal Bypass mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int get_bypass_pwup_sd(int if_index);
+
+/**
+ * set_bypass_wd - Set watchdog state
+ * @if_index: network device index of the controlling device
+ * @ms_timeout: requested timeout (in ms units), 0 for disabling the watchdog timer
+ * @ms_timeout_set(output): requested timeout (in ms units), 
+ *                          that the adapter supports and will be used by the watchdog
+ * Output:
+ * 0  - on success 
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int set_bypass_wd_sd(int if_index, int ms_timeout, int *ms_timeout_set);
+
+/**
+ * get_bypass_wd - Get watchdog state
+ * @if_index: network device index of the controlling device
+ * @ms_timeout (output): WDT timeout (in ms units), 
+ *                       -1 for unknown wdt status
+ *                        0 if WDT is disabled
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int get_bypass_wd_sd(int if_index, int *ms_timeout_set);
+
+/**
+ * get_wd_expire_time - Get watchdog expire
+ * @if_index: network device index of the controlling device
+ * @ms_time_left (output): time left till watchdog time expire, 
+ *                       -1 if WDT has expired
+ *                       0  if WDT is disabled
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device or unknown wdt status) 
+ **/
+int get_wd_expire_time_sd(int if_index, int *ms_time_left);
+
+/**
+ * reset_bypass_wd_timer - Reset watchdog timer
+ * @if_index: network device index of the controlling device
+ * 
+ * Output:
+ * 1  - on success
+ * 0 - watchdog is not configured
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device or unknown wdt status) 
+ **/
+int reset_bypass_wd_timer_sd(int if_index);
+
+/**
+ * set_std_nic - Standard NIC mode of operation
+ * @if_index: network device index of the controlling device
+ * @nic_mode: 0/1 (Default Bypass mode / Standard NIC mode)
+ * 
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int set_std_nic_sd(int if_index, int nic_mode);
+
+/**
+ * get_std_nic - Get Standard NIC mode setting
+ * @if_index: network device index of the controlling device
+ * 
+ * Output:
+ * 0/1 (Default Bypass mode / Standard NIC mode) on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device) 
+ **/
+int get_std_nic_sd(int if_index);
+
+/**
+ * set_tx - set transmitter enable/disable 
+ * @if_index: network device index of the controlling device
+ * @tx_state: 0/1 (Transmit Disable / Transmit Enable)
+ * 
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ) 
+ **/
+int set_tx_sd(int if_index, int tx_state);
+
+/**
+ * get_std_nic - get transmitter state (disable / enable)
+ * @if_index: network device index of the controlling device
+ * 
+ * Output:
+ * 0/1 (ransmit Disable / Transmit Enable) on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass) 
+ **/
+int get_tx_sd(int if_index);
+
+/**
+ * set_tap - set TAP state
+ * @if_index: network device index of the controlling device
+ * @tap_mode: 1 tap mode , 0 normal nic mode 
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support TAP or it's a slave device) 
+ **/
+int set_tap_sd(int if_index, int tap_mode);
+
+/**
+ * get_tap - Get TAP mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support TAP or it's a slave device) 
+ **/
+int get_tap_sd(int if_index);
+
+/**
+ * get_tap_change - Get change of TAP mode state from last status check
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support TAP or it's a slave device) 
+ **/
+int get_tap_change_sd(int if_index);
+
+/**
+ * set_dis_tap - Set Disable TAP mode
+ * @if_index: network device index of the controlling device
+ * @dis_tap: disable tap(1=dis, 0=en)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP 
+ *                  or it's a slave device) 
+ **/
+int set_dis_tap_sd(int if_index, int dis_tap);
+
+/**
+ * get_dis_tap - Get Disable TAP mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (normal TAP mode/ Disable TAP)
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP 
+ *                  or it's a slave device) 
+ **/
+int get_dis_tap_sd(int if_index);
+
+/**
+ * set_tap_pwup - Set TAP mode at power-up state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode: tap mode setting at power up state (1=TAP en, 0=TAP Dis)
+ * Output:
+ *  0 - on success 
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP 
+ *                  or it's a slave device) 
+ **/
+int set_tap_pwup_sd(int if_index, int tap_mode);
+
+/**
+ * get_tap_pwup - Get TAP mode state at power-up state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable TAP at power up state / normal TAP mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP 
+ *                  or it's a slave device) 
+ **/
+int get_tap_pwup_sd(int if_index);
+
+/**
+ * set_bp_disc - set Disconnect state
+ * @if_index: network device index of the controlling device
+ * @tap_mode: 1 disc mode , 0 non-disc mode 
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support Disconnect or it's a slave device) 
+ **/
+int set_bp_disc_sd(int if_index, int disc_mode);
+
+/**
+ * get_bp_disc - Get Disconnect mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support Disconnect or it's a slave device) 
+ **/
+int get_bp_disc_sd(int if_index);
+
+/**
+ * get_bp_disc_change - Get change of Disconnect mode state from last status check
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support Disconnect or it's a slave device) 
+ **/
+int get_bp_disc_change_sd(int if_index);
+
+/**
+ * set_bp_dis_disc - Set Disable Disconnect mode
+ * @if_index: network device index of the controlling device
+ * @dis_tap: disable tap(1=dis, 0=en)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable ofthe operation ordevice not support Disconnect 
+ *                  or it's a slave device) 
+ **/
+int set_bp_dis_disc_sd(int if_index, int dis_disc);
+
+/**
+ * get_dis_tap - Get Disable Disconnect mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (normal Disconnect mode/ Disable Disconnect)
+ * -1 - on failure (device is not capable of the operation ordevice not support Disconnect 
+ *                  or it's a slave device) 
+ **/
+int get_bp_dis_disc_sd(int if_index);
+
+/**
+ * set_bp_disc_pwup - Set Disconnect mode at power-up state
+ * @if_index: network device index of the controlling device
+ * @disc_mode: tap mode setting at power up state (1=Disc en, 0=Disc Dis)
+ * Output:
+ *  0 - on success 
+ * -1 - on failure (device is not capable of the operation ordevice not support Disconnect 
+ *                  or it's a slave device) 
+ **/
+int set_bp_disc_pwup_sd(int if_index, int disc_mode);
+
+/**
+ * get_bp_disc_pwup - Get Disconnect mode state at power-up state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable Disconnect at power up state / normal Disconnect mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP 
+ *                  or it's a slave device) 
+ **/
+int get_bp_disc_pwup_sd(int if_index);
+
+/**
+ * set_wd_exp_mode - Set adapter state when WDT expired.
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  adapter mode (1=tap mode, 0=bypass mode) 
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support Bypass or it's a slave device) 
+ **/
+int set_wd_exp_mode_sd(int if_index, int bypass_mode);
+
+/**
+ * get_wd_exp_mode - Get adapter state when WDT expired.
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (bypass/tap) on success
+ * -1 - on failure (device not support Bypass or it's a slave device) 
+ **/
+int get_wd_exp_mode_sd(int if_index);
+
+/**
+ * set_wd_autoreset - reset WDT periodically.
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  adapter mode (1=tap mode, 0=bypass mode) 
+ * Output:
+ * 1  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device or unknown wdt status) 
+ **/
+int set_wd_autoreset_sd(int if_index, int time);
+
+/**
+ * set_wd_autoreset - reset WDT periodically.
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  adapter mode (1=tap mode, 0=bypass mode) 
+ * Output:
+ * 1  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass 
+ *                  or it's a slave device or unknown wdt status) 
+ **/
+int get_wd_autoreset_sd(int if_index);
+
+/**
+ * set_tpl - set TPL state
+ * @if_index: network device index of the controlling device
+ * @tpl_mode: 1 tpl mode , 0 normal nic mode 
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support TPL) 
+ **/
+int set_tpl_sd(int if_index, int tpl_mode);
+
+/**
+ * get_tpl - Get TPL mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support TPL or it's a slave device) 
+ **/
+int get_tpl_sd(int if_index);
+
+int get_bypass_info_sd(int if_index, struct bp_info *bp_info);
+int bp_if_scan_sd(void);
+/*int get_dev_num_sd(void);*/
diff --git a/drivers/staging/silicom/libbp_sd.h b/drivers/staging/silicom/libbp_sd.h
new file mode 100644
index 00000000000..065277f81c7
--- /dev/null
+++ b/drivers/staging/silicom/libbp_sd.h
@@ -0,0 +1,550 @@
+/******************************************************************************/
+/*                                                                            */
+/* bypass library, Copyright (c) 2004 Silicom, Ltd                            */
+/* Corporation.                                                               */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/* Ver 1.0.0                                                                  */
+/*                                                                            */
+/* libbypass.h                                                                */
+/*                                                                            */
+/******************************************************************************/
+
+#define BP_CAP                   0x01	/* BIT_0 */
+#define BP_STATUS_CAP            0x02
+#define BP_STATUS_CHANGE_CAP     0x04
+#define SW_CTL_CAP               0x08
+#define BP_DIS_CAP               0x10
+#define BP_DIS_STATUS_CAP        0x20
+#define STD_NIC_CAP              0x40
+#define BP_PWOFF_ON_CAP          0x80
+#define BP_PWOFF_OFF_CAP         0x0100
+#define BP_PWOFF_CTL_CAP         0x0200
+#define BP_PWUP_ON_CAP           0x0400
+#define BP_PWUP_OFF_CAP          0x0800
+#define BP_PWUP_CTL_CAP          0x1000
+#define WD_CTL_CAP               0x2000
+#define WD_STATUS_CAP            0x4000
+#define WD_TIMEOUT_CAP           0x8000
+#define TX_CTL_CAP               0x10000
+#define TX_STATUS_CAP            0x20000
+#define TAP_CAP                  0x40000
+#define TAP_STATUS_CAP           0x80000
+#define TAP_STATUS_CHANGE_CAP    0x100000
+#define TAP_DIS_CAP              0x200000
+#define TAP_DIS_STATUS_CAP       0x400000
+#define TAP_PWUP_ON_CAP          0x800000
+#define TAP_PWUP_OFF_CAP         0x1000000
+#define TAP_PWUP_CTL_CAP         0x2000000
+#define NIC_CAP_NEG              0x4000000	/* BIT 26 */
+
+#define WD_MIN_TIME_GET(desc)   (desc & 0xf)
+#define WDT_STEP_TIME           0x10
+
+struct bp_info {
+	char prod_name[14];
+	unsigned char fw_ver;
+};
+
+/**
+ * is_bypass - check if device is a Bypass controlling device
+ * @if_index: network device index
+ *
+ * Output:
+ *  1 -  if device is bypass controlling device,
+ *  0 -  if device is bypass slave device
+ * -1 -  device not support Bypass
+ **/
+int is_bypass_sd(int if_index);
+
+/**
+ * get_bypass_slave - get second port participate in the Bypass pair
+ * @if_index: network device index
+ *
+ * Output:
+ *  network device index of the slave device
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ **/
+int get_bypass_slave_sd(int if_index);
+
+/**
+ * get_bypass_caps - get second port participate in the Bypass pair
+ * @if_index: network device index
+ *
+ * Output:
+ * flags word on success;flag word is a 32-bit mask word with each bit defines different
+ * capability as described bellow.
+ * Value of 1 for supporting this feature. 0 for not supporting this feature.
+ * -1 - on failure (if the device is not capable of the operation or not a Bypass device)
+ * Bit	feature	                description
+ *
+ * 0	BP_CAP	                The interface is Bypass capable in general
+ *
+ * 1	BP_STATUS_CAP	        The interface can report of the current Bypass mode
+ *
+ * 2	BP_STATUS_CHANGE_CAP	The interface can report on a change to bypass mode from
+ *                              the last time the mode was defined
+ *
+ * 3	SW_CTL_CAP	            The interface is Software controlled capable for bypass/non bypass modes.
+ *
+ * 4	BP_DIS_CAP	            The interface is capable of disabling the Bypass mode at all times.
+ *                              This mode will retain its mode even during power loss and also after
+ *                              power recovery. This will overcome on any bypass operation due to
+ *                              watchdog timeout or set bypass command.
+ *
+ * 5	BP_DIS_STATUS_CAP	    The interface can report of the current DIS_BP_CAP
+ *
+ * 6	STD_NIC_CAP	            The interface is capable to be configured to operate as standard, non Bypass,
+ *                              NIC interface (have direct connection to interfaces at all power modes)
+ *
+ * 7	BP_PWOFF_NO_CAP	        The interface can be in Bypass mode at power off state
+ *
+ * 8	BP_PWOFF_OFF_CAP	    The interface can disconnect the Bypass mode at power off state without
+ *                              effecting all the other states of operation
+ *
+ * 9	BP_PWOFF_CTL_CAP	    The behavior of the Bypass mode at Power-off state can be controlled by
+ *                              software without effecting any other state
+ *
+ *10    BP_PWUP_ON_CAP	        The interface can be in Bypass mode when power is turned on
+ *                              (until the system take control of the bypass functionality)
+ *
+ *11	BP_PWUP_OFF_CAP	        The interface can disconnect from Bypass mode when power is turned on
+ *                              (until the system take control of the bypass functionality)
+ *
+ *12	BP_PWUP_CTL_CAP	        The behavior of the Bypass mode at Power-up can be controlled by software
+ *
+ *13	WD_CTL_CAP	            The interface has watchdog capabilities to turn to Bypass mode when not reset
+ *                              for defined period of time.
+ *
+ *14	WD_STATUS_CAP	        The interface can report on the watchdog status (Active/inactive)
+ *
+ *15	WD_TIMEOUT_CAP	        The interface can report the time left till watchdog triggers to Bypass mode.
+ *
+ *16-31 RESERVED
+ *
+ * **/
+int get_bypass_caps_sd(int if_index);
+
+/**
+ * get_wd_set_caps - Obtain watchdog timer setting capabilities
+ * @if_index: network device index
+ *
+ * Output:
+ *
+ * Set of numbers defining the various parameters of the watchdog capable
+ * to be set to as described bellow.
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ *
+ * Bit	feature	        description
+ *
+ * 0-3	WD_MIN_TIME	    The interface WD minimal time period  in 100mS units
+ *
+ * 4	WD_STEP_TIME	The steps of the WD timer in
+ *                      0 - for linear steps (WD_MIN_TIME * X)
+ *                      1 - for multiply by 2 from previous step (WD_MIN_TIME * 2^X)
+ *
+ * 5-8	WD_STEP_COUNT	Number of steps the WD timer supports in 2^X
+ *                      (X bit available for defining the value)
+ *
+ *
+ *
+ **/
+int get_wd_set_caps_sd(int if_index);
+
+/**
+ * set_bypass - set Bypass state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  bypass mode (1=on, 0=off)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ **/
+int set_bypass_sd(int if_index, int bypass_mode);
+
+/**
+ * get_bypass - Get Bypass mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ **/
+int get_bypass_sd(int if_index);
+
+/**
+ * get_bypass_change - Get change of Bypass mode state from last status check
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ **/
+int get_bypass_change_sd(int if_index);
+
+/**
+ * set_dis_bypass - Set Disable Bypass mode
+ * @if_index: network device index of the controlling device
+ * @dis_bypass: disable bypass(1=dis, 0=en)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int set_dis_bypass_sd(int if_index, int dis_bypass);
+
+/**
+ * get_dis_bypass - Get Disable Bypass mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (normal Bypass mode/ Disable bypass)
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int get_dis_bypass_sd(int if_index);
+
+/**
+ * set_bypass_pwoff - Set Bypass mode at power-off state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode: bypass mode setting at power off state (1=BP en, 0=BP Dis)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int set_bypass_pwoff_sd(int if_index, int bypass_mode);
+
+/**
+ * get_bypass_pwoff - Get Bypass mode state at power-off state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable bypass at power off state / normal Bypass mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int get_bypass_pwoff_sd(int if_index);
+
+/**
+ * set_bypass_pwup - Set Bypass mode at power-up state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode: bypass mode setting at power up state (1=BP en, 0=BP Dis)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int set_bypass_pwup_sd(int if_index, int bypass_mode);
+
+/**
+ * get_bypass_pwup - Get Bypass mode state at power-up state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable bypass at power up state / normal Bypass mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int get_bypass_pwup_sd(int if_index);
+
+/**
+ * set_bypass_wd - Set watchdog state
+ * @if_index: network device index of the controlling device
+ * @ms_timeout: requested timeout (in ms units), 0 for disabling the watchdog timer
+ * @ms_timeout_set(output): requested timeout (in ms units),
+ *                          that the adapter supports and will be used by the watchdog
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int set_bypass_wd_sd(int if_index, int ms_timeout, int *ms_timeout_set);
+
+/**
+ * get_bypass_wd - Get watchdog state
+ * @if_index: network device index of the controlling device
+ * @ms_timeout (output): WDT timeout (in ms units),
+ *                       -1 for unknown wdt status
+ *                        0 if WDT is disabled
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int get_bypass_wd_sd(int if_index, int *ms_timeout_set);
+
+/**
+ * get_wd_expire_time - Get watchdog expire
+ * @if_index: network device index of the controlling device
+ * @ms_time_left (output): time left till watchdog time expire,
+ *                       -1 if WDT has expired
+ *                       0  if WDT is disabled
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device or unknown wdt status)
+ **/
+int get_wd_expire_time_sd(int if_index, int *ms_time_left);
+
+/**
+ * reset_bypass_wd_timer - Reset watchdog timer
+ * @if_index: network device index of the controlling device
+ *
+ * Output:
+ * 1  - on success
+ * 0 - watchdog is not configured
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device or unknown wdt status)
+ **/
+int reset_bypass_wd_timer_sd(int if_index);
+
+/**
+ * set_std_nic - Standard NIC mode of operation
+ * @if_index: network device index of the controlling device
+ * @nic_mode: 0/1 (Default Bypass mode / Standard NIC mode)
+ *
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int set_std_nic_sd(int if_index, int nic_mode);
+
+/**
+ * get_std_nic - Get Standard NIC mode setting
+ * @if_index: network device index of the controlling device
+ *
+ * Output:
+ * 0/1 (Default Bypass mode / Standard NIC mode) on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device)
+ **/
+int get_std_nic_sd(int if_index);
+
+/**
+ * set_tx - set transmitter enable/disable
+ * @if_index: network device index of the controlling device
+ * @tx_state: 0/1 (Transmit Disable / Transmit Enable)
+ *
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation )
+ **/
+int set_tx_sd(int if_index, int tx_state);
+
+/**
+ * get_tx - get transmitter state (disable / enable)
+ * @if_index: network device index of the controlling device
+ *
+ * Output:
+ * 0/1 (ransmit Disable / Transmit Enable) on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass)
+ **/
+int get_tx_sd(int if_index);
+
+/**
+ * set_tpl - set TPL enable/disable
+ * @if_index: network device index of the controlling device
+ * @tx_state: 0/1 (TPL Disable / TPL Enable)
+ *
+ * Output:
+ * 0  - on success
+ * -1 - on failure (device is not capable of the operation )
+ **/
+int set_tpl_sd(int if_index, int tpl_state);
+
+/**
+ * get_tpl - get TPL state (disable / enable)
+ * @if_index: network device index of the controlling device
+ *
+ * Output:
+ * 0/1 (TPL Disable / TPL Enable) on success
+ * -1 - on failure (device is not capable of the operation)
+ **/
+int get_tpl_sd(int if_index);
+
+int get_bp_hw_reset_sd(int if_index);
+
+int set_bp_hw_reset_sd(int if_index, int status);
+
+/**
+ * set_tap - set TAP state
+ * @if_index: network device index of the controlling device
+ * @tap_mode: 1 tap mode , 0 normal nic mode
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support TAP or it's a slave device)
+ **/
+int set_tap_sd(int if_index, int tap_mode);
+
+/**
+ * get_tap - Get TAP mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support TAP or it's a slave device)
+ **/
+int get_tap_sd(int if_index);
+
+/**
+ * get_tap_change - Get change of TAP mode state from last status check
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support TAP or it's a slave device)
+ **/
+int get_tap_change_sd(int if_index);
+
+/**
+ * set_dis_tap - Set Disable TAP mode
+ * @if_index: network device index of the controlling device
+ * @dis_tap: disable tap(1=dis, 0=en)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP
+ *                  or it's a slave device)
+ **/
+int set_dis_tap_sd(int if_index, int dis_tap);
+
+/**
+ * get_dis_tap - Get Disable TAP mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (normal TAP mode/ Disable TAP)
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP
+ *                  or it's a slave device)
+ **/
+int get_dis_tap_sd(int if_index);
+
+/**
+ * set_tap_pwup - Set TAP mode at power-up state
+ * @if_index: network device index of the controlling device
+ * @bypass_mode: tap mode setting at power up state (1=TAP en, 0=TAP Dis)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP
+ *                  or it's a slave device)
+ **/
+int set_tap_pwup_sd(int if_index, int tap_mode);
+
+/**
+ * get_tap_pwup - Get TAP mode state at power-up state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable TAP at power up state / normal TAP mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP
+ *                  or it's a slave device)
+ **/
+int get_tap_pwup_sd(int if_index);
+
+/**
+ * set_wd_exp_mode - Set adapter state when WDT expired.
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  adapter mode (1=tap mode, 0=bypass mode)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ **/
+int set_wd_exp_mode_sd(int if_index, int bypass_mode);
+
+/**
+ * get_wd_exp_mode - Get adapter state when WDT expired.
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (bypass/tap) on success
+ * -1 - on failure (device not support Bypass or it's a slave device)
+ **/
+int get_wd_exp_mode_sd(int if_index);
+
+/**
+ * set_wd_autoreset - reset WDT periodically.
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  adapter mode (1=tap mode, 0=bypass mode)
+ * Output:
+ * 1  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device or unknown wdt status)
+ **/
+int set_wd_autoreset_sd(int if_index, int time);
+
+/**
+ * set_wd_autoreset - reset WDT periodically.
+ * @if_index: network device index of the controlling device
+ * @bypass_mode:  adapter mode (1=tap mode, 0=bypass mode)
+ * Output:
+ * 1  - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support Bypass
+ *                  or it's a slave device or unknown wdt status)
+ **/
+int get_wd_autoreset_sd(int if_index);
+/**
+ * set_disc - set DISC state
+ * @if_index: network device index of the controlling device
+ * @tap_mode: 1 DISC mode , 0 normal nic mode
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device not support disconnect or it's a slave device)
+ **/
+int set_bp_disc_sd(int if_index, int disc_mode);
+
+/**
+ * get_disc - Get disc mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support disconnect or it's a slave device)
+ **/
+int get_bp_disc_sd(int if_index);
+
+/**
+ * get_disc_change - Get change of DISC mode state from last status check
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - (off/on) on success
+ * -1 - on failure (device not support disconnect or it's a slave device)
+ **/
+int get_bp_disc_change_sd(int if_index);
+
+/**
+ * set_dis_disc - Set Disable DISC mode
+ * @if_index: network device index of the controlling device
+ * @dis_disc: disable disconnect(1=dis, 0=en)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support DISC
+ *                  or it's a slave device)
+ **/
+int set_bp_dis_disc_sd(int if_index, int dis_disc);
+
+/**
+ * get_dis_disc - Get Disable DISC mode state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (normal DISC mode/ Disable DISC)
+ * -1 - on failure (device is not capable of the operation ordevice not support TAP
+ *                  or it's a slave device)
+ **/
+int get_bp_dis_disc_sd(int if_index);
+
+/**
+ * set_disc_pwup - Set DISC mode at power-up state
+ * @if_index: network device index of the controlling device
+ * @disc_mode: DISC mode setting at power up state (1= en, 0= Dis)
+ * Output:
+ *  0 - on success
+ * -1 - on failure (device is not capable of the operation ordevice not support DISC
+ *                  or it's a slave device)
+ **/
+int set_bp_disc_pwup_sd(int if_index, int disc_mode);
+
+/**
+ * get_disc_pwup - Get DISC mode state at power-up state
+ * @if_index: network device index of the controlling device
+ * Output:
+ *  0/1 - on success (Disable DISC at power up state / normal DISC mode)
+ * -1 - on failure (device is not capable of the operation ordevice not support DISC
+ *                  or it's a slave device)
+ **/
+int get_bp_disc_pwup_sd(int if_index);
+
+int get_bypass_info_sd(int if_index, struct bp_info *bp_info);
+int bp_if_scan_sd(void);
+/*int get_dev_num_sd(void);*/
diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 56829fc032f..cd920dad85c 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -514,8 +514,7 @@ static int slic_card_download_gbrcv(struct adapter *adapter)
 		file = "slicoss/gbrcvucode.sys";
 		break;
 	default:
-		ASSERT(0);
-		break;
+		return -ENOENT;
 	}
 
 	ret = request_firmware(&fw, file, &adapter->pcidev->dev);
@@ -529,15 +528,16 @@ static int slic_card_download_gbrcv(struct adapter *adapter)
 	index += 4;
 	switch (adapter->devid) {
 	case SLIC_2GB_DEVICE_ID:
-		if (rcvucodelen != OasisRcvUCodeLen)
+		if (rcvucodelen != OasisRcvUCodeLen) {
+			release_firmware(fw);
 			return -EINVAL;
+		}
 		break;
 	case SLIC_1GB_DEVICE_ID:
-		if (rcvucodelen != GBRcvUCodeLen)
+		if (rcvucodelen != GBRcvUCodeLen) {
+			release_firmware(fw);
 			return -EINVAL;
-		break;
-	default:
-		ASSERT(0);
+		}
 		break;
 	}
 	/* start download */
@@ -2552,7 +2552,6 @@ static void slic_mcast_set_list(struct net_device *dev)
 		if (status == 0)
 			slic_mcast_set_mask(adapter);
 	}
-	return;
 }
 
 #define  XMIT_FAIL_LINK_STATE               1
@@ -3132,7 +3131,6 @@ static int slic_entry_open(struct net_device *dev)
 {
 	struct adapter *adapter = netdev_priv(dev);
 	struct sliccard *card = adapter->card;
-	u32 locked = 0;
 	int status;
 
 	ASSERT(adapter);
@@ -3142,7 +3140,6 @@ static int slic_entry_open(struct net_device *dev)
 
 	spin_lock_irqsave(&slic_global.driver_lock.lock,
 				slic_global.driver_lock.flags);
-	locked = 1;
 	if (!adapter->activated) {
 		card->adapters_activated++;
 		slic_global.num_slic_ports_active++;
@@ -3156,23 +3153,15 @@ static int slic_entry_open(struct net_device *dev)
 			slic_global.num_slic_ports_active--;
 			adapter->activated = 0;
 		}
-		if (locked) {
-			spin_unlock_irqrestore(&slic_global.driver_lock.lock,
-						slic_global.driver_lock.flags);
-			locked = 0;
-		}
-		return status;
+		goto spin_unlock;
 	}
 	if (!card->master)
 		card->master = adapter;
 
-	if (locked) {
-		spin_unlock_irqrestore(&slic_global.driver_lock.lock,
-					slic_global.driver_lock.flags);
-		locked = 0;
-	}
-
-	return 0;
+spin_unlock:
+	spin_unlock_irqrestore(&slic_global.driver_lock.lock,
+			       slic_global.driver_lock.flags);
+	return status;
 }
 
 static void slic_card_cleanup(struct sliccard *card)
@@ -3712,9 +3701,8 @@ static void slic_init_adapter(struct net_device *netdev,
 					phys_shmem);
 	ASSERT(adapter->pshmem);
 
-	memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
-
-	return;
+	if (adapter->pshmem)
+		memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
 }
 
 static const struct net_device_ops slic_netdev_ops = {
diff --git a/drivers/staging/sm7xxfb/sm7xx.h b/drivers/staging/sm7xxfb/sm7xx.h
index 333f33c3dc6..85998615b80 100644
--- a/drivers/staging/sm7xxfb/sm7xx.h
+++ b/drivers/staging/sm7xxfb/sm7xx.h
@@ -29,7 +29,7 @@
 #define dac_reg	(0x3c8)
 #define dac_val	(0x3c9)
 
-extern char __iomem *smtc_RegBaseAddress;
+extern void __iomem *smtc_RegBaseAddress;
 #define smtc_mmiowb(dat, reg)	writeb(dat, smtc_RegBaseAddress + reg)
 #define smtc_mmioww(dat, reg)	writew(dat, smtc_RegBaseAddress + reg)
 #define smtc_mmiowl(dat, reg)	writel(dat, smtc_RegBaseAddress + reg)
diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c
index 1c1780c70fb..f27182d4dea 100644
--- a/drivers/staging/sm7xxfb/sm7xxfb.c
+++ b/drivers/staging/sm7xxfb/sm7xxfb.c
@@ -43,11 +43,11 @@ struct smtcfb_info {
 	u16 chip_id;
 	u8  chip_rev_id;
 
-	unsigned char __iomem *m_pMMIO;
-	char __iomem *m_pLFB;
-	char *m_pDPR;
-	char *m_pVPR;
-	char *m_pCPR;
+	void __iomem *lfb;	/* linear frame buffer */
+	void __iomem *dp_regs;	/* drawing processor control regs */
+	void __iomem *vp_regs;	/* video processor control regs */
+	void __iomem *cp_regs;	/* capture processor control regs */
+	void __iomem *mmio;	/* memory map IO port */
 
 	u_int width;
 	u_int height;
@@ -56,8 +56,7 @@ struct smtcfb_info {
 	u32 colreg[17];
 };
 
-char __iomem *smtc_RegBaseAddress;	/* Memory Map IO starting address */
-char __iomem *smtc_VRAMBaseAddress;	/* video memory starting address */
+void __iomem *smtc_RegBaseAddress;	/* Memory Map IO starting address */
 
 static struct fb_var_screeninfo smtcfb_var = {
 	.xres           = 1024,
@@ -72,14 +71,20 @@ static struct fb_var_screeninfo smtcfb_var = {
 	.height         = -1,
 	.width          = -1,
 	.vmode          = FB_VMODE_NONINTERLACED,
+	.nonstd         = 0,
+	.accel_flags    = FB_ACCELF_TEXT,
 };
 
 static struct fb_fix_screeninfo smtcfb_fix = {
-	.id             = "sm712fb",
+	.id             = "smXXXfb",
 	.type           = FB_TYPE_PACKED_PIXELS,
 	.visual         = FB_VISUAL_TRUECOLOR,
 	.line_length    = 800 * 3,
 	.accel          = FB_ACCEL_SMI_LYNX,
+	.type_aux       = 0,
+	.xpanstep       = 0,
+	.ypanstep       = 0,
+	.ywrapstep      = 0,
 };
 
 struct vesa_mode {
@@ -545,28 +550,28 @@ static void sm7xx_set_timing(struct smtcfb_info *sfb)
 	smtc_mmiowb(0x67, 0x3c2);
 
 	/* set VPR registers */
-	writel(0x0, sfb->m_pVPR + 0x0C);
-	writel(0x0, sfb->m_pVPR + 0x40);
+	writel(0x0, sfb->vp_regs + 0x0C);
+	writel(0x0, sfb->vp_regs + 0x40);
 
 	/* set data width */
 	m_nScreenStride =
 		(sfb->width * sfb->fb.var.bits_per_pixel) / 64;
 	switch (sfb->fb.var.bits_per_pixel) {
 	case 8:
-		writel(0x0, sfb->m_pVPR + 0x0);
+		writel(0x0, sfb->vp_regs + 0x0);
 		break;
 	case 16:
-		writel(0x00020000, sfb->m_pVPR + 0x0);
+		writel(0x00020000, sfb->vp_regs + 0x0);
 		break;
 	case 24:
-		writel(0x00040000, sfb->m_pVPR + 0x0);
+		writel(0x00040000, sfb->vp_regs + 0x0);
 		break;
 	case 32:
-		writel(0x00030000, sfb->m_pVPR + 0x0);
+		writel(0x00030000, sfb->vp_regs + 0x0);
 		break;
 	}
 	writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
-	       sfb->m_pVPR + 0x10);
+	       sfb->vp_regs + 0x10);
 
 }
 
@@ -673,9 +678,9 @@ static struct fb_ops smtcfb_ops = {
 };
 
 /*
- * alloc struct smtcfb_info and assign the default value
+ * alloc struct smtcfb_info and assign default values
  */
-static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev, char *name)
+static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev)
 {
 	struct smtcfb_info *sfb;
 
@@ -686,32 +691,12 @@ static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev, char *name)
 
 	sfb->pdev = pdev;
 
-	/* init sfb->fb with default value */
-
-	sfb->fb.flags = FBINFO_FLAG_DEFAULT;
-	sfb->fb.fbops = &smtcfb_ops;
-
-	sfb->fb.fix = smtcfb_fix;
-	strcpy(sfb->fb.fix.id, name);
-
-	sfb->fb.fix.type        = FB_TYPE_PACKED_PIXELS;
-	sfb->fb.fix.type_aux    = 0;
-	sfb->fb.fix.xpanstep    = 0;
-	sfb->fb.fix.ypanstep    = 0;
-	sfb->fb.fix.ywrapstep   = 0;
-	sfb->fb.fix.accel       = FB_ACCEL_SMI_LYNX;
-
-	sfb->fb.var             = smtcfb_var;
-	sfb->fb.var.nonstd      = 0;
-	sfb->fb.var.activate    = FB_ACTIVATE_NOW;
-	sfb->fb.var.height      = -1;
-	sfb->fb.var.width       = -1;
-	sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
-	sfb->fb.var.vmode       = FB_VMODE_NONINTERLACED;
-
-	sfb->fb.pseudo_palette  = sfb->colreg;
-
-	sfb->fb.par = sfb;
+	sfb->fb.flags          = FBINFO_FLAG_DEFAULT;
+	sfb->fb.fbops          = &smtcfb_ops;
+	sfb->fb.fix            = smtcfb_fix;
+	sfb->fb.var            = smtcfb_var;
+	sfb->fb.pseudo_palette = sfb->colreg;
+	sfb->fb.par            = sfb;
 
 	return sfb;
 }
@@ -751,7 +736,7 @@ static int smtc_map_smem(struct smtcfb_info *sfb,
 
 	sfb->fb.fix.smem_len = smem_len;
 
-	sfb->fb.screen_base = smtc_VRAMBaseAddress;
+	sfb->fb.screen_base = sfb->lfb;
 
 	if (!sfb->fb.screen_base) {
 		dev_err(&pdev->dev,
@@ -788,9 +773,8 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 {
 	struct smtcfb_info *sfb;
 	u_long smem_size = 0x00800000;	/* default 8MB */
-	char name[16];
 	int err;
-	unsigned long pFramebufferPhysical;
+	unsigned long mmio_base;
 
 	dev_info(&pdev->dev, "Silicon Motion display driver.");
 
@@ -798,7 +782,9 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 	if (err)
 		return err;
 
-	sfb = smtc_alloc_fb_info(pdev, name);
+	sprintf(smtcfb_fix.id, "sm%Xfb", ent->device);
+
+	sfb = smtc_alloc_fb_info(pdev);
 
 	if (!sfb) {
 		err = -ENOMEM;
@@ -806,7 +792,6 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 	}
 
 	sfb->chip_id = ent->device;
-	sprintf(name, "sm%Xfb", sfb->chip_id);
 
 	pci_set_drvdata(pdev, sfb);
 
@@ -829,33 +814,28 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 		sfb->fb.var.bits_per_pixel = (smtc_scr_info.lfb_depth = 32);
 #endif
 	/* Map address and memory detection */
-	pFramebufferPhysical = pci_resource_start(pdev, 0);
+	mmio_base = pci_resource_start(pdev, 0);
 	pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id);
 
 	switch (sfb->chip_id) {
 	case 0x710:
 	case 0x712:
-		sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
+		sfb->fb.fix.mmio_start = mmio_base + 0x00400000;
 		sfb->fb.fix.mmio_len = 0x00400000;
 		smem_size = SM712_VIDEOMEMORYSIZE;
 #ifdef __BIG_ENDIAN
-		sfb->m_pLFB = (smtc_VRAMBaseAddress =
-		    ioremap(pFramebufferPhysical, 0x00c00000));
+		sfb->lfb = ioremap(mmio_base, 0x00c00000);
 #else
-		sfb->m_pLFB = (smtc_VRAMBaseAddress =
-		    ioremap(pFramebufferPhysical, 0x00800000));
+		sfb->lfb = ioremap(mmio_base, 0x00800000);
 #endif
-		sfb->m_pMMIO = (smtc_RegBaseAddress =
-		    smtc_VRAMBaseAddress + 0x00700000);
-		sfb->m_pDPR = smtc_VRAMBaseAddress + 0x00408000;
-		sfb->m_pVPR = sfb->m_pLFB + 0x0040c000;
+		sfb->mmio = (smtc_RegBaseAddress =
+		    sfb->lfb + 0x00700000);
+		sfb->dp_regs = sfb->lfb + 0x00408000;
+		sfb->vp_regs = sfb->lfb + 0x0040c000;
 #ifdef __BIG_ENDIAN
 		if (sfb->fb.var.bits_per_pixel == 32) {
-			smtc_VRAMBaseAddress += 0x800000;
-			sfb->m_pLFB += 0x800000;
-			dev_info(&pdev->dev,
-				 "smtc_VRAMBaseAddress=%p sfb->m_pLFB=%p",
-				  smtc_VRAMBaseAddress, sfb->m_pLFB);
+			sfb->lfb += 0x800000;
+			dev_info(&pdev->dev, "sfb->lfb=%p", sfb->lfb);
 		}
 #endif
 		if (!smtc_RegBaseAddress) {
@@ -879,15 +859,14 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 #endif
 		break;
 	case 0x720:
-		sfb->fb.fix.mmio_start = pFramebufferPhysical;
+		sfb->fb.fix.mmio_start = mmio_base;
 		sfb->fb.fix.mmio_len = 0x00200000;
 		smem_size = SM722_VIDEOMEMORYSIZE;
-		sfb->m_pDPR = ioremap(pFramebufferPhysical, 0x00a00000);
-		sfb->m_pLFB = (smtc_VRAMBaseAddress =
-		    sfb->m_pDPR + 0x00200000);
-		sfb->m_pMMIO = (smtc_RegBaseAddress =
-		    sfb->m_pDPR + 0x000c0000);
-		sfb->m_pVPR = sfb->m_pDPR + 0x800;
+		sfb->dp_regs = ioremap(mmio_base, 0x00a00000);
+		sfb->lfb = sfb->dp_regs + 0x00200000;
+		sfb->mmio = (smtc_RegBaseAddress =
+		    sfb->dp_regs + 0x000c0000);
+		sfb->vp_regs = sfb->dp_regs + 0x800;
 
 		smtc_seqw(0x62, 0xff);
 		smtc_seqw(0x6a, 0x0d);
diff --git a/drivers/staging/speakup/i18n.c b/drivers/staging/speakup/i18n.c
index ca01734d13c..7c1658b971d 100644
--- a/drivers/staging/speakup/i18n.c
+++ b/drivers/staging/speakup/i18n.c
@@ -555,6 +555,7 @@ ssize_t msg_set(enum msg_index_t index, char *text, size_t length)
 			&& index <= MSG_FORMATTED_END)
 				&& !fmt_validate(speakup_default_msgs[index],
 				newstr)) {
+				kfree(newstr);
 				return -EINVAL;
 			}
 			spk_lock(flags);
diff --git a/drivers/staging/speakup/serialio.h b/drivers/staging/speakup/serialio.h
index 614271f9b99..55d68b5ad16 100644
--- a/drivers/staging/speakup/serialio.h
+++ b/drivers/staging/speakup/serialio.h
@@ -1,8 +1,7 @@
 #ifndef _SPEAKUP_SERIAL_H
 #define _SPEAKUP_SERIAL_H
 
-#include <linux/serial.h>	/* for rs_table, serial constants &
-				   serial_uart_config */
+#include <linux/serial.h>	/* for rs_table, serial constants */
 #include <linux/serial_reg.h>	/* for more serial constants */
 #ifndef __sparc__
 #include <asm/serial.h>
diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c
index 42cdafeea35..e2f5c81e754 100644
--- a/drivers/staging/speakup/speakup_soft.c
+++ b/drivers/staging/speakup/speakup_soft.c
@@ -40,13 +40,13 @@ static int softsynth_is_alive(struct spk_synth *synth);
 static unsigned char get_index(void);
 
 static struct miscdevice synth_device;
-static int initialized;
+static int init_pos;
 static int misc_registered;
 
 static struct var_t vars[] = {
 	{ CAPS_START, .u.s = {"\x01+3p" } },
 	{ CAPS_STOP, .u.s = {"\x01-3p" } },
-	{ RATE, .u.n = {"\x01%ds", 5, 0, 9, 0, 0, NULL } },
+	{ RATE, .u.n = {"\x01%ds", 2, 0, 9, 0, 0, NULL } },
 	{ PITCH, .u.n = {"\x01%dp", 5, 0, 9, 0, 0, NULL } },
 	{ VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
 	{ TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
@@ -194,7 +194,7 @@ static int softsynth_close(struct inode *inode, struct file *fp)
 	unsigned long flags;
 	spk_lock(flags);
 	synth_soft.alive = 0;
-	initialized = 0;
+	init_pos = 0;
 	spk_unlock(flags);
 	/* Make sure we let applications go before leaving */
 	speakup_start_ttys();
@@ -239,13 +239,8 @@ static ssize_t softsynth_read(struct file *fp, char *buf, size_t count,
 			ch = '\x18';
 		} else if (synth_buffer_empty()) {
 			break;
-		} else if (!initialized) {
-			if (*init) {
-				ch = *init;
-				init++;
-			} else {
-				initialized = 1;
-			}
+		} else if (init[init_pos]) {
+			ch = init[init_pos++];
 		} else {
 			ch = synth_buffer_getc();
 		}
diff --git a/drivers/staging/ste_rmi4/board-mop500-u8500uib-rmi4.c b/drivers/staging/ste_rmi4/board-mop500-u8500uib-rmi4.c
index a272e488e5b..47439c3f725 100644
--- a/drivers/staging/ste_rmi4/board-mop500-u8500uib-rmi4.c
+++ b/drivers/staging/ste_rmi4/board-mop500-u8500uib-rmi4.c
@@ -5,7 +5,6 @@
 #include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
-#include <mach/gpio.h>
 #include <mach/irqs.h>
 #include "synaptics_i2c_rmi4.h"
 
diff --git a/drivers/staging/telephony/ixj.c b/drivers/staging/telephony/ixj.c
index b303c9192e1..1cfa0b07d72 100644
--- a/drivers/staging/telephony/ixj.c
+++ b/drivers/staging/telephony/ixj.c
@@ -7057,7 +7057,7 @@ static int ixj_selfprobe(IXJ *j)
 		printk(KERN_INFO "Enable Line Monitor\n");
 
 	if (ixjdebug & 0x0002)
-		printk(KERN_INFO "Set Line Monitor to Asyncronous Mode\n");
+		printk(KERN_INFO "Set Line Monitor to Asynchronous Mode\n");
 
 	if (ixj_WriteDSPCommand(0x7E01, j))		/* Asynchronous Line Monitor */
 		return -1;
@@ -7068,7 +7068,7 @@ static int ixj_selfprobe(IXJ *j)
 	if (ixj_WriteDSPCommand(0x5151, j))		/* Enable DTMF detection */
 		return -1;
 
-	if (ixj_WriteDSPCommand(0x6E01, j))		/* Set Asyncronous Tone Generation */
+	if (ixj_WriteDSPCommand(0x6E01, j))		/* Set Asynchronous Tone Generation */
 		return -1;
 
 	set_rec_depth(j, 2);	/* Set Record Channel Limit to 2 frames */
diff --git a/drivers/staging/tidspbridge/Documentation/error-codes b/drivers/staging/tidspbridge/Documentation/error-codes
index 12826e2a3aa..ad73cba058e 100644
--- a/drivers/staging/tidspbridge/Documentation/error-codes
+++ b/drivers/staging/tidspbridge/Documentation/error-codes
@@ -69,7 +69,7 @@ The error codes used by this driver are:
     Invalid pointer or handler.
 
 [EEXIST]
-    Attempted to create a channel manager  when one already exists.
+    Attempted to create a channel manager when one already exists.
 
 [EINVAL]
     Invalid argument.
diff --git a/drivers/staging/tidspbridge/core/_tiomap.h b/drivers/staging/tidspbridge/core/_tiomap.h
index 7cb58710397..543a127c7d4 100644
--- a/drivers/staging/tidspbridge/core/_tiomap.h
+++ b/drivers/staging/tidspbridge/core/_tiomap.h
@@ -219,7 +219,7 @@ static const struct map_l4_peripheral l4_peripheral_table[] = {
 /* MBX_PM_MAX_RESOURCES: CORE 2 Clock Resources. */
 #define MBX_CORE2_RESOURCES 1
 
-/* MBX_PM_MAX_RESOURCES: TOTAL Clock Reosurces. */
+/* MBX_PM_MAX_RESOURCES: TOTAL Clock Resources. */
 #define MBX_PM_MAX_RESOURCES 11
 
 /*  Power Management Commands */
diff --git a/drivers/staging/tidspbridge/core/chnl_sm.c b/drivers/staging/tidspbridge/core/chnl_sm.c
index e0c7e4c470c..16fa3462fbb 100644
--- a/drivers/staging/tidspbridge/core/chnl_sm.c
+++ b/drivers/staging/tidspbridge/core/chnl_sm.c
@@ -20,7 +20,7 @@
  *      The lower edge functions must be implemented by the Bridge driver
  *      writer, and are declared in chnl_sm.h.
  *
- *      Care is taken in this code to prevent simulataneous access to channel
+ *      Care is taken in this code to prevent simultaneous access to channel
  *      queues from
  *      1. Threads.
  *      2. io_dpc(), scheduled from the io_isr() as an event.
@@ -34,7 +34,7 @@
  *  Channel Invariant:
  *      There is an important invariant condition which must be maintained per
  *      channel outside of bridge_chnl_get_ioc() and IO_Dispatch(), violation of
- *      which may cause timeouts and/or failure offunction sync_wait_on_event.
+ *      which may cause timeouts and/or failure of function sync_wait_on_event.
  *      This invariant condition is:
  *
  *          list_empty(&pchnl->io_completions) ==> pchnl->sync_event is reset
@@ -94,7 +94,7 @@ int bridge_chnl_add_io_req(struct chnl_object *chnl_obj, void *host_buf,
 	struct dev_object *dev_obj;
 	u8 dw_state;
 	bool is_eos;
-	struct chnl_mgr *chnl_mgr_obj = pchnl->chnl_mgr_obj;
+	struct chnl_mgr *chnl_mgr_obj;
 	u8 *host_sys_buf = NULL;
 	bool sched_dpc = false;
 	u16 mb_val = 0;
@@ -153,6 +153,7 @@ func_cont:
 	 * If DPC is scheduled in process context (iosm_schedule) and any
 	 * non-mailbox interrupt occurs, that DPC will run and break CS. Hence
 	 * we disable ALL DPCs. We will try to disable ONLY IO DPC later. */
+	chnl_mgr_obj = pchnl->chnl_mgr_obj;
 	spin_lock_bh(&chnl_mgr_obj->chnl_mgr_lock);
 	omap_mbox_disable_irq(dev_ctxt->mbox, IRQ_RX);
 	if (pchnl->chnl_type == CHNL_PCPY) {
@@ -602,7 +603,7 @@ int bridge_chnl_get_ioc(struct chnl_object *chnl_obj, u32 timeout,
 		/*  Since DSPStream_Reclaim() does not take a timeout
 		 *  parameter, we pass the stream's timeout value to
 		 *  bridge_chnl_get_ioc. We cannot determine whether or not
-		 *  we have waited in User mode. Since the stream's timeout
+		 *  we have waited in user mode. Since the stream's timeout
 		 *  value may be non-zero, we still have to set the event.
 		 *  Therefore, this optimization is taken out.
 		 *
diff --git a/drivers/staging/tidspbridge/core/dsp-clock.c b/drivers/staging/tidspbridge/core/dsp-clock.c
index c7df34e6b60..b647207928b 100644
--- a/drivers/staging/tidspbridge/core/dsp-clock.c
+++ b/drivers/staging/tidspbridge/core/dsp-clock.c
@@ -16,12 +16,14 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
+#define L4_34XX_BASE		0x48000000
+
 #include <linux/types.h>
 
 /*  ----------------------------------- Host OS */
 #include <dspbridge/host_os.h>
 #include <plat/dmtimer.h>
-#include <plat/mcbsp.h>
+#include <linux/platform_data/asoc-ti-mcbsp.h>
 
 /*  ----------------------------------- DSP/BIOS Bridge */
 #include <dspbridge/dbdefs.h>
diff --git a/drivers/staging/tidspbridge/core/io_sm.c b/drivers/staging/tidspbridge/core/io_sm.c
index 480a3845a24..e322fb7aebe 100644
--- a/drivers/staging/tidspbridge/core/io_sm.c
+++ b/drivers/staging/tidspbridge/core/io_sm.c
@@ -837,8 +837,8 @@ static void io_dispatch_pm(struct io_mgr *pio_mgr)
 /*
  *  ======== io_dpc ========
  *      Deferred procedure call for shared memory channel driver ISR.  Carries
- *      out the dispatch of I/O as a non-preemptible event.It can only be
- *      pre-empted      by an ISR.
+ *      out the dispatch of I/O as a non-preemptible event. It can only be
+ *      pre-empted by an ISR.
  */
 void io_dpc(unsigned long ref_data)
 {
@@ -877,7 +877,7 @@ void io_dpc(unsigned long ref_data)
 						  pio_mgr->intr_val);
 			}
 		}
-		/* Proc-copy chanel dispatch */
+		/* Proc-copy channel dispatch */
 		input_chnl(pio_mgr, NULL, IO_SERVICE);
 		output_chnl(pio_mgr, NULL, IO_SERVICE);
 
@@ -938,7 +938,7 @@ int io_mbox_msg(struct notifier_block *self, unsigned long len, void *msg)
 /*
  *  ======== io_request_chnl ========
  *  Purpose:
- *      Request chanenel I/O from the DSP. Sets flags in shared memory, then
+ *      Request channel I/O from the DSP. Sets flags in shared memory, then
  *      interrupts the DSP.
  */
 void io_request_chnl(struct io_mgr *io_manager, struct chnl_object *pchnl,
@@ -2208,7 +2208,7 @@ void dump_dl_modules(struct bridge_dev_context *bridge_context)
 			module_struct->num_sects);
 
 		/*
-		 * The section name strings start immedialty following
+		 * The section name strings start immediately following
 		 * the array of dll_sect structures.
 		 */
 		sect_str = (char *) &module_struct->
diff --git a/drivers/staging/tidspbridge/core/sync.c b/drivers/staging/tidspbridge/core/sync.c
index 995986a9d03..7bb550acaf4 100644
--- a/drivers/staging/tidspbridge/core/sync.c
+++ b/drivers/staging/tidspbridge/core/sync.c
@@ -49,7 +49,7 @@ void sync_set_event(struct sync_object *event)
  * @timeout	timeout on waiting for the evetns.
  * @pu_index	index of the event set.
  *
- * This functios will wait until any of the array element is set or until
+ * These functions will wait until any of the array element is set or until
  * timeout. In case of success the function will return 0 and
  * @pu_index will store the index of the array element set or in case
  * of timeout the function will return -ETIME or in case of
diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c
index f9609ce2c16..066a3ceec65 100644
--- a/drivers/staging/tidspbridge/core/tiomap3430.c
+++ b/drivers/staging/tidspbridge/core/tiomap3430.c
@@ -16,7 +16,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#include <plat/dsp.h>
+#include <linux/platform_data/dsp-omap.h>
 
 #include <linux/types.h>
 /*  ----------------------------------- Host OS */
@@ -328,7 +328,7 @@ static int bridge_brd_read(struct bridge_dev_context *dev_ctxt,
 					   ul_num_bytes, mem_type);
 		return status;
 	}
-	/* copy the data from  DSP memory, */
+	/* copy the data from DSP memory */
 	memcpy(host_buff, (void *)(dsp_base_addr + offset), ul_num_bytes);
 	return status;
 }
@@ -415,10 +415,10 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt,
 		/* Assert RST1 i.e only the RST only for DSP megacell */
 		if (!status) {
 			/*
-			 * XXX: ioremapping  MUST be removed once ctrl
+			 * XXX: OMAP343X_CTRL_BASE ioremapping  MUST be removed once ctrl
 			 * function is made available.
 			 */
-			void __iomem *ctrl = ioremap(OMAP343X_CTRL_BASE, SZ_4K);
+			void __iomem *ctrl = ioremap(0x48002000, SZ_4K);
 			if (!ctrl)
 				return -ENOMEM;
 
@@ -1745,7 +1745,7 @@ static int mem_map_vmalloc(struct bridge_dev_context *dev_context,
 	pa_next = page_to_phys(page[0]);
 	while (!status && (i < num_pages)) {
 		/*
-		 * Reuse pa_next from the previous iteraion to avoid
+		 * Reuse pa_next from the previous iteration to avoid
 		 * an extra va2pa call
 		 */
 		pa_curr = pa_next;
diff --git a/drivers/staging/tidspbridge/core/tiomap3430_pwr.c b/drivers/staging/tidspbridge/core/tiomap3430_pwr.c
index 16a4aafa86a..dafa6d9b294 100644
--- a/drivers/staging/tidspbridge/core/tiomap3430_pwr.c
+++ b/drivers/staging/tidspbridge/core/tiomap3430_pwr.c
@@ -19,7 +19,7 @@
 /*  ----------------------------------- Host OS */
 #include <dspbridge/host_os.h>
 
-#include <plat/dsp.h>
+#include <linux/platform_data/dsp-omap.h>
 
 /*  ----------------------------------- DSP/BIOS Bridge */
 #include <dspbridge/dbdefs.h>
@@ -356,7 +356,7 @@ int pre_scale_dsp(struct bridge_dev_context *dev_context, void *pargs)
 		dev_dbg(bridge, "OPP: %s IVA in sleep. No message to DSP\n");
 		return 0;
 	} else if ((dev_context->brd_state == BRD_RUNNING)) {
-		/* Send a prenotificatio to DSP */
+		/* Send a prenotification to DSP */
 		dev_dbg(bridge, "OPP: %s sent notification to DSP\n", __func__);
 		sm_interrupt_dsp(dev_context, MBX_PM_SETPOINT_PRENOTIFY);
 		return 0;
diff --git a/drivers/staging/tidspbridge/core/tiomap_io.c b/drivers/staging/tidspbridge/core/tiomap_io.c
index 7fda10c3686..f53ed98d18c 100644
--- a/drivers/staging/tidspbridge/core/tiomap_io.c
+++ b/drivers/staging/tidspbridge/core/tiomap_io.c
@@ -16,7 +16,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#include <plat/dsp.h>
+#include <linux/platform_data/dsp-omap.h>
 
 /*  ----------------------------------- DSP/BIOS Bridge */
 #include <dspbridge/dbdefs.h>
diff --git a/drivers/staging/tidspbridge/core/wdt.c b/drivers/staging/tidspbridge/core/wdt.c
index 870f934f4f3..1dce36fb828 100644
--- a/drivers/staging/tidspbridge/core/wdt.c
+++ b/drivers/staging/tidspbridge/core/wdt.c
@@ -25,7 +25,8 @@
 #include <dspbridge/host_os.h>
 
 
-#define OMAP34XX_WDT3_BASE 		(L4_PER_34XX_BASE + 0x30000)
+#define OMAP34XX_WDT3_BASE 		(0x49000000 + 0x30000)
+#define INT_34XX_WDT3_IRQ 		(36 + NR_IRQS)
 
 static struct dsp_wdt_setting dsp_wdt;
 
@@ -61,9 +62,9 @@ int dsp_wdt_init(void)
 
 	dsp_wdt.fclk = clk_get(NULL, "wdt3_fck");
 
-	if (dsp_wdt.fclk) {
+	if (!IS_ERR(dsp_wdt.fclk)) {
 		dsp_wdt.iclk = clk_get(NULL, "wdt3_ick");
-		if (!dsp_wdt.iclk) {
+		if (IS_ERR(dsp_wdt.iclk)) {
 			clk_put(dsp_wdt.fclk);
 			dsp_wdt.fclk = NULL;
 			ret = -EFAULT;
diff --git a/drivers/staging/tidspbridge/dynload/tramp.c b/drivers/staging/tidspbridge/dynload/tramp.c
index 60d22ea4705..404af189598 100644
--- a/drivers/staging/tidspbridge/dynload/tramp.c
+++ b/drivers/staging/tidspbridge/dynload/tramp.c
@@ -81,7 +81,7 @@ static u8 priv_h2a(u8 value)
  * Description: Generate a trampoline symbol name (ASCII) using the value
  *	  of the symbol.  This places the new name into the user buffer.
  *	  The name is fixed in length and of the form: __$dbTR__xxxxxxxx
- *	  (where "xxxxxxxx" is the hex value.
+ *	  (where "xxxxxxxx" is the hex value).
  */
 static void priv_tramp_sym_gen_name(u32 value, char *dst)
 {
@@ -414,7 +414,7 @@ static int priv_tramp_sym_finalize(struct dload_state *dlthis)
 			/*  Copy the symbol contents into the flat table */
 			*new_sym = cur_sym->sym_info;
 
-			/*  Now finaize the symbol.  If it is in the tramp
+			/*  Now finalize the symbol.  If it is in the tramp
 			 * section, we need to adjust for the section start.
 			 * If it is external then we don't need to adjust at
 			 * all.
@@ -773,7 +773,7 @@ static int priv_img_pkt_dup(struct dload_state *dlthis,
 	int ret_val = 0;
 	struct tramp_img_dup_relo *dup_relo = NULL;
 
-	/*  Determinne if this image packet is already being tracked in the
+	/*  Determine if this image packet is already being tracked in the
 	   dup list for other trampolines. */
 	dup_pkt = priv_dup_find(dlthis, secnn, image_offset);
 
@@ -998,7 +998,7 @@ int dload_tramp_generate(struct dload_state *dlthis, s16 secnn,
 /*
  * Function:	dload_tramp_pkt_update
  * Description: Update the duplicate copy of this image packet, which the
- *	  trampoline layer is already tracking.  This is call is critical
+ *	  trampoline layer is already tracking.  This call is critical
  *	  to make if trampolines were generated anywhere within the
  *	  packet and first pass relo continued on the remainder.  The
  *	  trampoline layer needs the updates image data so when 2nd
diff --git a/drivers/staging/tidspbridge/gen/uuidutil.c b/drivers/staging/tidspbridge/gen/uuidutil.c
index b44656cf785..b7d8313d1ac 100644
--- a/drivers/staging/tidspbridge/gen/uuidutil.c
+++ b/drivers/staging/tidspbridge/gen/uuidutil.c
@@ -26,27 +26,6 @@
 /*  ----------------------------------- This */
 #include <dspbridge/uuidutil.h>
 
-/*
- *  ======== uuid_uuid_to_string ========
- *  Purpose:
- *      Converts a struct dsp_uuid to a string.
- *      Note: snprintf format specifier is:
- *      %[flags] [width] [.precision] [{h | l | I64 | L}]type
- */
-void uuid_uuid_to_string(struct dsp_uuid *uuid_obj, char *sz_uuid,
-			 s32 size)
-{
-	s32 i;			/* return result from snprintf. */
-
-	i = snprintf(sz_uuid, size,
-		     "%.8X_%.4X_%.4X_%.2X%.2X_%.2X%.2X%.2X%.2X%.2X%.2X",
-		     uuid_obj->data1, uuid_obj->data2, uuid_obj->data3,
-		     uuid_obj->data4, uuid_obj->data5,
-		     uuid_obj->data6[0], uuid_obj->data6[1],
-		     uuid_obj->data6[2], uuid_obj->data6[3],
-		     uuid_obj->data6[4], uuid_obj->data6[5]);
-}
-
 static s32 uuid_hex_to_bin(char *buf, s32 len)
 {
 	s32 i;
diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.c b/drivers/staging/tidspbridge/hw/hw_mmu.c
index 8a93d55ca59..71cb8229364 100644
--- a/drivers/staging/tidspbridge/hw/hw_mmu.c
+++ b/drivers/staging/tidspbridge/hw/hw_mmu.c
@@ -61,7 +61,7 @@ enum hw_mmu_page_size_t {
  *       Type		: hw_status
  *       Description     : 0		 -- No errors occurred
  *			 RET_BAD_NULL_PARAM     -- A Pointer
- *						Paramater was set to NULL
+ *						Parameter was set to NULL
  *
  * PURPOSE:	      : Flush the TLB entry pointed by the
  *			lock counter register
@@ -103,7 +103,7 @@ static hw_status mmu_flush_entry(const void __iomem *base_address);
  *
  *       Type	    	: hw_status
  *       Description     : 0		 -- No errors occurred
- *			 RET_BAD_NULL_PARAM     -- A Pointer Paramater
+ *			 RET_BAD_NULL_PARAM     -- A Pointer Parameter
  *						   was set to NULL
  *			 RET_PARAM_OUT_OF_RANGE -- Input Parameter out
  *						   of Range
@@ -148,7 +148,7 @@ static hw_status mmu_set_cam_entry(const void __iomem *base_address,
  *
  *       Type	    	: hw_status
  *       Description     : 0		 -- No errors occurred
- *			 RET_BAD_NULL_PARAM     -- A Pointer Paramater
+ *			 RET_BAD_NULL_PARAM     -- A Pointer Parameter
  *							was set to NULL
  *			 RET_PARAM_OUT_OF_RANGE -- Input Parameter
  *							out of Range
diff --git a/drivers/staging/tidspbridge/include/dspbridge/dspioctl.h b/drivers/staging/tidspbridge/include/dspbridge/dspioctl.h
index 0c7ec04448f..0fcda197892 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/dspioctl.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/dspioctl.h
@@ -51,7 +51,7 @@
 #define BRDIOCTL_POSTSCALE_NOTIFY (BRDIOCTL_PWRCONTROL + 0xA)
 #define BRDIOCTL_CONSTRAINT_REQUEST (BRDIOCTL_PWRCONTROL + 0xB)
 
-/* Number of actual DSP-MMU TLB entrries */
+/* Number of actual DSP-MMU TLB entries */
 #define BRDIOCTL_NUMOFMMUTLB        32
 
 struct bridge_ioctl_extproc {
diff --git a/drivers/staging/tidspbridge/include/dspbridge/mbx_sh.h b/drivers/staging/tidspbridge/include/dspbridge/mbx_sh.h
index 7424c888d63..d4cb3948bab 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/mbx_sh.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/mbx_sh.h
@@ -22,7 +22,7 @@
  *  mailbox interrupt's cmd value received. The class value are defined
  *  as a bit (10 thru 15) being set.
  *
- *  Note: Only 16 bits of each  is used. Other 16 bit data reg available.
+ *  Note: Only 16 bits of each is used. Other 16 bit data reg available.
  *
  *   16 bit Mbx bit defns:
  *
diff --git a/drivers/staging/tidspbridge/include/dspbridge/node.h b/drivers/staging/tidspbridge/include/dspbridge/node.h
index 7397b7a12f7..68ed74a86c9 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/node.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/node.h
@@ -220,7 +220,7 @@ extern int node_create_mgr(struct node_mgr **node_man,
  *  Parameters:
  *      noderes:              Node resource info handle returned from
  *                                 node_allocate().
- *      pr_ctxt:                Poninter to process context data.
+ *      pr_ctxt:                Pointer to process context data.
  *  Returns:
  *      0:            Success.
  *      -EFAULT:        Invalid hnode.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/ntfy.h b/drivers/staging/tidspbridge/include/dspbridge/ntfy.h
index cbc8819c61c..6bb94d20e99 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/ntfy.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/ntfy.h
@@ -78,7 +78,7 @@ static inline void ntfy_init(struct ntfy_object *no)
  * ntfy_delete() - delete list of nofy events registered.
  * @ntfy_obj:	Pointer to the ntfy object structure.
  *
- * This function is used to remove all the notify events  registered.
+ * This function is used to remove all the notify events registered.
  * unregister function is not needed in this function, to unregister
  * a ntfy_event please look at ntfy_register function.
  *
diff --git a/drivers/staging/tidspbridge/include/dspbridge/proc.h b/drivers/staging/tidspbridge/include/dspbridge/proc.h
index a82380ebc04..851b356d7a5 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/proc.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/proc.h
@@ -263,7 +263,7 @@ extern int proc_get_processor_id(void *proc, u32 * proc_id);
  *  Returns:
  *      0     :   Success.
  *      -EFAULT :   Invalid processor handle.
- *      -EPERM   :   General failure while retireving processor trace
+ *      -EPERM   :   General failure while retrieving processor trace
  *		      Buffer.
  *  Requires:
  *      pbuf is not NULL
diff --git a/drivers/staging/tidspbridge/include/dspbridge/strm.h b/drivers/staging/tidspbridge/include/dspbridge/strm.h
index dacf0c234fd..97aee4c63d2 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/strm.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/strm.h
@@ -203,7 +203,7 @@ extern int strm_issue(struct strm_object *stream_obj, u8 * pbuf,
  *      index:         Stream index.
  *      pattr:          Pointer to structure containing attributes to be
  *                      applied to stream. Cannot be NULL.
- *      strmres:     Location to store stream resuorce info handle on output.
+ *      strmres:     Location to store stream resource info handle on output.
  *  Returns:
  *      0:        Success.
  *      -EFAULT:    Invalid hnode.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/sync.h b/drivers/staging/tidspbridge/include/dspbridge/sync.h
index b1e75eb8847..58a0d5c5543 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/sync.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/sync.h
@@ -78,7 +78,7 @@ void sync_set_event(struct sync_object *event);
  * @event:	events to wait for it.
  * @timeout	timeout on waiting for the evetn.
  *
- * This functios will wait until @event is set or until timeout. In case of
+ * This function will wait until @event is set or until timeout. In case of
  * success the function will return 0 and
  * in case of timeout the function will return -ETIME
  * in case of signal the function will return -ERESTARTSYS
@@ -106,7 +106,7 @@ static inline int sync_wait_on_event(struct sync_object *event,
  * @timeout	timeout on waiting for the evetns.
  * @pu_index	index of the event set.
  *
- * This functios will wait until any of the array element is set or until
+ * This function will wait until any of the array element is set or until
  * timeout. In case of success the function will return 0 and
  * @pu_index will store the index of the array element set and in case
  * of timeout the function will return -ETIME.
diff --git a/drivers/staging/tidspbridge/include/dspbridge/uuidutil.h b/drivers/staging/tidspbridge/include/dspbridge/uuidutil.h
index 9a994753e9b..414bf71d652 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/uuidutil.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/uuidutil.h
@@ -22,26 +22,6 @@
 #define MAXUUIDLEN  37
 
 /*
- *  ======== uuid_uuid_to_string ========
- *  Purpose:
- *      Converts a dsp_uuid to an ANSI string.
- *  Parameters:
- *      uuid_obj:      Pointer to a dsp_uuid object.
- *      sz_uuid:    Pointer to a buffer to receive a NULL-terminated UUID
- *                  string.
- *      size:	    Maximum size of the sz_uuid string.
- *  Returns:
- *  Requires:
- *      uuid_obj & sz_uuid are non-NULL values.
- *  Ensures:
- *      Lenghth of sz_uuid is less than MAXUUIDLEN.
- *  Details:
- *      UUID string limit currently set at MAXUUIDLEN.
- */
-void uuid_uuid_to_string(struct dsp_uuid *uuid_obj, char *sz_uuid,
-			 s32 size);
-
-/*
  *  ======== uuid_uuid_from_string ========
  *  Purpose:
  *      Converts an ANSI string to a dsp_uuid.
diff --git a/drivers/staging/tidspbridge/rmgr/dbdcd.c b/drivers/staging/tidspbridge/rmgr/dbdcd.c
index 12a1d34b395..9d52c3cb92f 100644
--- a/drivers/staging/tidspbridge/rmgr/dbdcd.c
+++ b/drivers/staging/tidspbridge/rmgr/dbdcd.c
@@ -346,11 +346,13 @@ int dcd_get_object_def(struct dcd_manager *hdcd_mgr,
 	struct dcd_manager *dcd_mgr_obj = hdcd_mgr;	/* ptr to DCD mgr */
 	struct cod_libraryobj *lib = NULL;
 	int status = 0;
+	int len;
 	u32 ul_addr = 0;	/* Used by cod_get_section */
 	u32 ul_len = 0;		/* Used by cod_get_section */
 	u32 dw_buf_size;	/* Used by REG functions */
 	char sz_reg_key[DCD_MAXPATHLENGTH];
 	char *sz_uuid;		/*[MAXUUIDLEN]; */
+	char *tmp;
 	struct dcd_key_elem *dcd_key = NULL;
 	char sz_sect_name[MAXUUIDLEN + 2];	/* ".[UUID]\0" */
 	char *psz_coff_buf;
@@ -395,7 +397,7 @@ int dcd_get_object_def(struct dcd_manager *hdcd_mgr,
 		}
 
 		/* Create UUID value to set in registry. */
-		uuid_uuid_to_string(obj_uuid, sz_uuid, MAXUUIDLEN);
+		snprintf(sz_uuid, MAXUUIDLEN, "%pUL", obj_uuid);
 
 		if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
 			strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
@@ -429,12 +431,27 @@ int dcd_get_object_def(struct dcd_manager *hdcd_mgr,
 	}
 
 	/* Ensure sz_uuid + 1 is not greater than sizeof sz_sect_name. */
+	len = strlen(sz_uuid);
+	if (len + 1 > sizeof(sz_sect_name)) {
+		status = -EPERM;
+		goto func_end;
+	}
 
 	/* Create section name based on node UUID. A period is
 	 * pre-pended to the UUID string to form the section name.
 	 * I.e. ".24BC8D90_BB45_11d4_B756_006008BDB66F" */
+
+	len -= 4;	/* uuid has 4 delimiters '-' */
+	tmp = sz_uuid;
+
 	strncpy(sz_sect_name, ".", 2);
-	strncat(sz_sect_name, sz_uuid, strlen(sz_uuid));
+	do {
+		char *uuid = strsep(&tmp, "-");
+		if (!uuid)
+			break;
+		len -= strlen(uuid);
+		strncat(sz_sect_name, uuid, strlen(uuid) + 1);
+	} while (len && strncat(sz_sect_name, "_", 2));
 
 	/* Get section information. */
 	status = cod_get_section(lib, sz_sect_name, &ul_addr, &ul_len);
@@ -463,7 +480,7 @@ int dcd_get_object_def(struct dcd_manager *hdcd_mgr,
 	status = cod_read_section(lib, sz_sect_name, psz_coff_buf, ul_len);
 #endif
 	if (!status) {
-		/* Compres DSP buffer to conform to PC format. */
+		/* Compress DSP buffer to conform to PC format. */
 		if (strstr(dcd_key->path, "iva") == NULL) {
 			compress_buf(psz_coff_buf, ul_len, DSPWORDSIZE);
 		} else {
@@ -666,7 +683,7 @@ int dcd_get_library_name(struct dcd_manager *hdcd_mgr,
 			status = -EPERM;
 		}
 		/* Create UUID value to find match in registry. */
-		uuid_uuid_to_string(uuid_obj, sz_uuid, MAXUUIDLEN);
+		snprintf(sz_uuid, MAXUUIDLEN, "%pUL", uuid_obj);
 		if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
 			strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
 		else
@@ -706,7 +723,7 @@ int dcd_get_library_name(struct dcd_manager *hdcd_mgr,
 		} else {
 			status = -EPERM;
 		}
-		uuid_uuid_to_string(uuid_obj, sz_uuid, MAXUUIDLEN);
+		snprintf(sz_uuid, MAXUUIDLEN, "%pUL", uuid_obj);
 		if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
 			strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
 		else
@@ -797,7 +814,7 @@ int dcd_register_object(struct dsp_uuid *uuid_obj,
 			status = -EPERM;
 
 		/* Create UUID value to set in registry. */
-		uuid_uuid_to_string(uuid_obj, sz_uuid, MAXUUIDLEN);
+		snprintf(sz_uuid, MAXUUIDLEN, "%pUL", uuid_obj);
 		if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
 			strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
 		else
diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c
index 3cac0149206..bddea1d3b2c 100644
--- a/drivers/staging/tidspbridge/rmgr/drv_interface.c
+++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c
@@ -16,7 +16,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#include <plat/dsp.h>
+#include <linux/platform_data/dsp-omap.h>
 
 #include <linux/types.h>
 #include <linux/platform_device.h>
@@ -613,16 +613,6 @@ static struct platform_driver bridge_driver = {
 #endif
 };
 
-static int __init bridge_init(void)
-{
-	return platform_driver_register(&bridge_driver);
-}
-
-static void __exit bridge_exit(void)
-{
-	platform_driver_unregister(&bridge_driver);
-}
-
 /* To remove all process resources before removing the process from the
  * process context list */
 int drv_remove_all_resources(void *process_ctxt)
@@ -636,6 +626,4 @@ int drv_remove_all_resources(void *process_ctxt)
 	return status;
 }
 
-/* Bridge driver initialization and de-initialization functions */
-module_init(bridge_init);
-module_exit(bridge_exit);
+module_platform_driver(bridge_driver);
diff --git a/drivers/staging/tidspbridge/rmgr/dspdrv.c b/drivers/staging/tidspbridge/rmgr/dspdrv.c
index dc767b183cd..d460f5823c6 100644
--- a/drivers/staging/tidspbridge/rmgr/dspdrv.c
+++ b/drivers/staging/tidspbridge/rmgr/dspdrv.c
@@ -72,7 +72,7 @@ u32 dsp_init(u32 *init_status)
 
 	/* Unwind whatever was loaded */
 	if (status) {
-		/* irrespective of the status of dev_remove_device we conitinue
+		/* irrespective of the status of dev_remove_device we continue
 		 * unloading. Get the Driver Object iterate through and remove.
 		 * Reset the status to E_FAIL to avoid going through
 		 * api_init_complete2. */
@@ -92,7 +92,7 @@ u32 dsp_init(u32 *init_status)
 func_cont:
 	/* Attempt to Start the Board */
 	if (!status) {
-		/* BRD_AutoStart could fail if the dsp execuetable is not the
+		/* BRD_AutoStart could fail if the dsp executable is not the
 		 * correct one. We should not propagate that error
 		 * into the device loader. */
 		(void)api_init_complete2();
diff --git a/drivers/staging/tidspbridge/rmgr/mgr.c b/drivers/staging/tidspbridge/rmgr/mgr.c
index 8a1e9287cff..b32ba0ad2a0 100644
--- a/drivers/staging/tidspbridge/rmgr/mgr.c
+++ b/drivers/staging/tidspbridge/rmgr/mgr.c
@@ -262,8 +262,8 @@ int mgr_enum_processor_info(u32 processor_id,
 				    IVAPROCTYPE_ARM7)
 					proc_detect = true;
 			}
-			/* User applciatiuons aonly check for chip type, so
-			 * this clumsy overwrite */
+			/* User applications only check for chip type, so
+			 * this is a clumsy overwrite */
 			processor_info->processor_type = DSPTYPE64;
 		} else {
 			dev_dbg(bridge, "%s: Failed to get DCD processor info "
diff --git a/drivers/staging/tidspbridge/rmgr/nldr.c b/drivers/staging/tidspbridge/rmgr/nldr.c
index 30d5480fcdc..6309221b64a 100644
--- a/drivers/staging/tidspbridge/rmgr/nldr.c
+++ b/drivers/staging/tidspbridge/rmgr/nldr.c
@@ -898,7 +898,7 @@ static int add_ovly_info(void *handle, struct dbll_sect_info *sect_info,
 				nldr_obj->ovly_table[i].execute_sects++;
 
 		} else {
-			/* Put in "other" sectins */
+			/* Put in "other" sections */
 			status =
 			    add_ovly_sect(nldr_obj,
 					  &nldr_obj->
diff --git a/drivers/staging/tidspbridge/rmgr/node.c b/drivers/staging/tidspbridge/rmgr/node.c
index 7fb426c5251..c2fc6137c77 100644
--- a/drivers/staging/tidspbridge/rmgr/node.c
+++ b/drivers/staging/tidspbridge/rmgr/node.c
@@ -1613,7 +1613,7 @@ int node_get_attr(struct node_object *hnode,
 		return -EFAULT;
 
 	hnode_mgr = hnode->node_mgr;
-	/* Enter hnode_mgr critical section (since we're accessing
+	/* Enter hnode_mgr critical section since we're accessing
 	 * data that could be changed by node_change_priority() and
 	 * node_connect(). */
 	mutex_lock(&hnode_mgr->node_mgr_lock);
@@ -2714,8 +2714,7 @@ static int get_node_props(struct dcd_manager *hdcd_mgr,
 		hnode->ntype = node_type = pndb_props->ntype;
 
 		/* Create UUID value to set in registry. */
-		uuid_uuid_to_string((struct dsp_uuid *)node_uuid, sz_uuid,
-				    MAXUUIDLEN);
+		snprintf(sz_uuid, MAXUUIDLEN, "%pUL", node_uuid);
 		dev_dbg(bridge, "(node) UUID: %s\n", sz_uuid);
 
 		/* Fill in message args that come from NDB */
diff --git a/drivers/staging/tidspbridge/rmgr/proc.c b/drivers/staging/tidspbridge/rmgr/proc.c
index 7e4f12f6be4..5e43938ab7f 100644
--- a/drivers/staging/tidspbridge/rmgr/proc.c
+++ b/drivers/staging/tidspbridge/rmgr/proc.c
@@ -300,7 +300,7 @@ proc_attach(u32 processor_id,
 	if (status)
 		goto func_end;
 
-	/* If we made it this far, create the Proceesor object: */
+	/* If we made it this far, create the Processor object: */
 	p_proc_object = kzalloc(sizeof(struct proc_object), GFP_KERNEL);
 	/* Fill out the Processor Object: */
 	if (p_proc_object == NULL) {
diff --git a/drivers/staging/usbip/Kconfig b/drivers/staging/usbip/Kconfig
index dd13c022068..199b1d4c0b8 100644
--- a/drivers/staging/usbip/Kconfig
+++ b/drivers/staging/usbip/Kconfig
@@ -1,6 +1,6 @@
 config USBIP_CORE
-	tristate "USB/IP support (EXPERIMENTAL)"
-	depends on USB && NET && EXPERIMENTAL
+	tristate "USB/IP support"
+	depends on USB && NET
 	default N
 	---help---
 	  This enables pushing USB packets over IP to allow remote
diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index 92ced35e6b7..c8d79a7f0e0 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -187,10 +187,14 @@ static void stub_shutdown_connection(struct usbip_device *ud)
 	}
 
 	/* 1. stop threads */
-	if (ud->tcp_rx)
+	if (ud->tcp_rx) {
 		kthread_stop_put(ud->tcp_rx);
-	if (ud->tcp_tx)
+		ud->tcp_rx = NULL;
+	}
+	if (ud->tcp_tx) {
 		kthread_stop_put(ud->tcp_tx);
+		ud->tcp_tx = NULL;
+	}
 
 	/*
 	 * 2. close the socket
diff --git a/drivers/staging/usbip/stub_rx.c b/drivers/staging/usbip/stub_rx.c
index 1d5b3fc6216..694cfd7596f 100644
--- a/drivers/staging/usbip/stub_rx.c
+++ b/drivers/staging/usbip/stub_rx.c
@@ -155,7 +155,7 @@ static int tweak_set_configuration_cmd(struct urb *urb)
 	 * eventually reassigned to the device as far as driver matching
 	 * condition is kept.
 	 *
-	 * Unfortunatelly, an existing usbip connection will be dropped
+	 * Unfortunately, an existing usbip connection will be dropped
 	 * due to this driver unbinding. So, skip here.
 	 * A user may need to set a special configuration value before
 	 * exporting the device.
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 70f23026932..57f11f9cd8a 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -22,7 +22,9 @@
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/stat.h>
 #include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <net/sock.h>
 
 #include "usbip_common.h"
@@ -36,6 +38,8 @@ unsigned long usbip_debug_flag = 0xffffffff;
 unsigned long usbip_debug_flag;
 #endif
 EXPORT_SYMBOL_GPL(usbip_debug_flag);
+module_param(usbip_debug_flag, ulong, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(usbip_debug_flag, "debug flags (defined in usbip_common.h)");
 
 /* FIXME */
 struct device_attribute dev_attr_usbip_debug;
@@ -157,8 +161,7 @@ static void usbip_dump_usb_device(struct usb_device *udev)
 	dev_dbg(dev, "have_langid %d, string_langid %d\n",
 		udev->have_langid, udev->string_langid);
 
-	dev_dbg(dev, "maxchild %d, children %p\n",
-		udev->maxchild, udev->children);
+	dev_dbg(dev, "maxchild %d\n", udev->maxchild);
 }
 
 static void usbip_dump_request_type(__u8 rt)
diff --git a/drivers/staging/usbip/userspace/configure.ac b/drivers/staging/usbip/userspace/configure.ac
index bf5cf49cb55..43e641e5ac0 100644
--- a/drivers/staging/usbip/userspace/configure.ac
+++ b/drivers/staging/usbip/userspace/configure.ac
@@ -56,11 +56,11 @@ AC_ARG_WITH([tcp-wrappers],
 	    [AS_HELP_STRING([--with-tcp-wrappers],
 			    [use the libwrap (TCP wrappers) library])],
 	    dnl [ACTION-IF-GIVEN]
-	    [saved_LIBS="$LIBS"
-	     if test "$withval" = "yes"; then
+	    [if test "$withval" = "yes"; then
 		     AC_MSG_RESULT([yes])
 		     AC_MSG_CHECKING([for hosts_access in -lwrap])
-		     LIBS="-lwrap $LIBS"
+		     saved_LIBS="$LIBS"
+		     LIBS="-lwrap $saved_LIBS"
 		     AC_TRY_LINK(
 		       [int hosts_access(); int allow_severity, deny_severity;],
 		       [hosts_access()],
@@ -69,9 +69,9 @@ AC_ARG_WITH([tcp-wrappers],
 				  [use tcp wrapper]) wrap_LIB="-lwrap"],
 		       [AC_MSG_RESULT([not found]); exit 1])
 	     else
-		     AC_MSG_RESULT([no])
-	     fi
-	     LIBS="$saved_LIBS"],
+		     AC_MSG_RESULT([no]);
+		     LIBS="$saved_LIBS"
+	     fi],
 	    dnl [ACTION-IF-NOT-GIVEN]
 	    [AC_MSG_RESULT([(default)])
 	     AC_MSG_CHECKING([for hosts_access in -lwrap])
diff --git a/drivers/staging/usbip/userspace/doc/usbip.8 b/drivers/staging/usbip/userspace/doc/usbip.8
index 1653bb2cd7d..6e0d7450379 100644
--- a/drivers/staging/usbip/userspace/doc/usbip.8
+++ b/drivers/staging/usbip/userspace/doc/usbip.8
@@ -3,69 +3,87 @@
 usbip \- manage USB/IP devices
 .SH SYNOPSIS
 .B usbip
-[\fIoptions\fR]
+[\foptions\R] <\fIcommand\fR> <\fIargs\fR>
 
 .SH DESCRIPTION
-Devices exported by USB/IP servers can be listed, attached and
-detached using this program.
+On a USB/IP server, devices can be listed, bound, and unbound using
+this program.  On a USB/IP client, devices exported by USB/IP servers
+can be listed, attached and detached.
 
 .SH OPTIONS
 .HP
-\fB\-a\fR, \fB\-\-attach\fR <host> <bus_id>
+\fB\-\-debug\fR
 .IP
-Attach a remote USB device.
+Print debugging information.
+.PP
+
+.HP
+\fB\-\-log\fR
+.IP
+Log to syslog.
+.PP
+
+.SH COMMANDS
+.HP
+\fBversion\fR
+.IP
+Show version and exit.
 .PP
 
 .HP
-\fB\-x\fR, \fB\-\-attachall\fR <host>
+\fBhelp\fR [\fIcommand\fR]
 .IP
-Attach all remote USB devices on the specific host.
+Print the program help message, or help on a specific command, and
+then exit.
 .PP
 
 .HP
-\fB\-d\fR, \fB\-\-detach\fR <ports>
+\fBattach\fR \-\-host=<\fIhost\fR> \-\-busid=<\fIbus_id\fR>
+.IP
+Attach a remote USB device.
+.PP
+
+.HP
+\fBdetach\fR \-\-port=<\fIport\fR>
 .IP
 Detach an imported USB device.
 .PP
 
 .HP
-\fB\-l\fR, \fB\-\-list\fR <hosts>
+\fBbind\fR \-\-busid=<\fIbusid\fR>
 .IP
-List exported USB devices.
+Make a device exportable.
 .PP
 
 .HP
-\fB\-p\fR, \fB\-\-port\fR
+\fBunbind\fR \-\-busid=<\fIbusid\fR>
 .IP
-List virtual USB port status.
+Stop exporting a device so it can be used by a local driver.
 .PP
 
 .HP
-\fB\-D\fR, \fB\-\-debug\fR
+\fBlist\fR \-\-remote=<\fIhost\fR>
 .IP
-Print debugging information.
+List USB devices exported by a remote host.
 .PP
 
 .HP
-\fB\-v\fR, \fB\-\-version\fR
+\fBlist\fR \-\-local
 .IP
-Show version.
+List local USB devices.
 .PP
 
+
 .SH EXAMPLES
 
-    client:# usbip --list server
+    client:# usbip list --remote=server
         - List exportable usb devices on the server.
 
-    client:# usbip --attach server 1-2
+    client:# usbip attach --host=server --busid=1-2
         - Connect the remote USB device.
 
-    client:# usbip --port
-        - Show virtual port status.
-
-    client:# usbip --detach 0
+    client:# usbip detach --port=0
         - Detach the usb device.
 
 .SH "SEE ALSO"
-\fBusbipd\fP\fB(8)\fB\fP,
-\fBusbip_attach_driver\fP\fB(8)\fB\fP
+\fBusbipd\fP\fB(8)\fB\fP
diff --git a/drivers/staging/usbip/userspace/doc/usbip_bind_driver.8 b/drivers/staging/usbip/userspace/doc/usbip_bind_driver.8
deleted file mode 100644
index d43bbd6be93..00000000000
--- a/drivers/staging/usbip/userspace/doc/usbip_bind_driver.8
+++ /dev/null
@@ -1,42 +0,0 @@
-.TH USBIP_BIND_DRIVER "8" "February 2009" "usbip" "System Administration Utilities"
-.SH NAME
-usbip_bind_driver \- change driver binding for USB/IP
-
-.SH SYNOPSIS
-.B usbip_bind_driver
-[\fIoptions\fR]
-
-.SH DESCRIPTION
-Driver bindings for USB devices can be changed using
-this program. It is used to export and unexport USB
-devices over USB/IP.
-
-.SH OPTIONS
-.TP
-\fB\-u\fR, \fB\-\-usbip\fR <busid>
-Make a device exportable
-.TP
-\fB\-o\fR, \fB\-\-other\fR <busid>
-Use a device by a local driver
-.TP
-\fB\-l\fR, \fB\-\-list\fR
-Print usb devices and their drivers
-.TP
-\fB\-L\fR, \fB\-\-list2\fR
-Print usb devices and their drivers in parseable mode
-
-.SH EXAMPLES
-
-    server:# usbip_bind_driver --list
-        - List driver assignments for usb devices.
-
-    server:# usbip_bind_driver --usbip 1-2
-        - Bind usbip-host.ko to the device of busid 1-2.
-        - A usb device 1-2 is now exportable to other hosts!
-
-    server:# usbip_bind_driver --other 1-2
-        - Shutdown exporting and use the device locally.
-
-.SH "SEE ALSO"
-\fBusbip\fP\fB(8)\fB\fP,
-\fBusbipd\fP\fB(8)\fB\fP
diff --git a/drivers/staging/usbip/userspace/doc/usbipd.8 b/drivers/staging/usbip/userspace/doc/usbipd.8
index 006559f1df2..d896936f178 100644
--- a/drivers/staging/usbip/userspace/doc/usbipd.8
+++ b/drivers/staging/usbip/userspace/doc/usbipd.8
@@ -10,7 +10,7 @@ usbipd \- USB/IP server daemon
 provides USB/IP clients access to exported USB devices.
 
 Devices have to explicitly be exported using
-.B usbip_bind_driver
+.B usbip bind
 before usbipd makes them available to other hosts.
 
 The daemon accepts connections from USB/IP clients
@@ -29,6 +29,11 @@ Run as a daemon process.
 Print debugging information.
 .PP
 
+\fB\-h\fR, \fB\-\-help\fR
+.IP
+Print the program help message and exit.
+.PP
+
 .HP
 \fB\-v\fR, \fB\-\-version\fR
 .IP
@@ -48,15 +53,14 @@ USB/IP client can connect and use exported devices.
     server:# usbipd -D
         - Start usbip daemon.
 
-    server:# usbip_bind_driver --list
+    server:# usbip list --local
         - List driver assignments for usb devices.
 
-    server:# usbip_bind_driver --usbip 1-2
+    server:# usbip bind --busid=1-2
         - Bind usbip-host.ko to the device of busid 1-2.
         - A usb device 1-2 is now exportable to other hosts!
-        - Use 'usbip_bind_driver --other 1-2' when you want to shutdown exporting and use the device locally.
+        - Use 'usbip unbind --busid=1-2' when you want to shutdown exporting and use the device locally.
 
 .SH "SEE ALSO"
-\fBusbip\fP\fB(8)\fB\fP,
-\fBusbip_attach_driver\fP\fB(8)\fB\fP
+\fBusbip\fP\fB(8)\fB\fP
 
diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
index 12a9a5fbc79..620d1beb458 100644
--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -220,7 +220,7 @@ static int vhci_hub_status(struct usb_hcd *hcd, char *buf)
 
 	pr_info("changed %d\n", changed);
 
-	if (hcd->state == HC_STATE_SUSPENDED)
+	if ((hcd->state == HC_STATE_SUSPENDED) && (changed == 1))
 		usb_hcd_resume_root_hub(hcd);
 
 done:
@@ -749,6 +749,7 @@ static void vhci_device_unlink_cleanup(struct vhci_device *vdev)
 {
 	struct vhci_unlink *unlink, *tmp;
 
+	spin_lock(&the_controller->lock);
 	spin_lock(&vdev->priv_lock);
 
 	list_for_each_entry_safe(unlink, tmp, &vdev->unlink_tx, list) {
@@ -757,9 +758,12 @@ static void vhci_device_unlink_cleanup(struct vhci_device *vdev)
 		kfree(unlink);
 	}
 
-	list_for_each_entry_safe(unlink, tmp, &vdev->unlink_rx, list) {
+	while (!list_empty(&vdev->unlink_rx)) {
 		struct urb *urb;
 
+		unlink = list_first_entry(&vdev->unlink_rx, struct vhci_unlink,
+			list);
+
 		/* give back URB of unanswered unlink request */
 		pr_info("unlink cleanup rx %lu\n", unlink->unlink_seqnum);
 
@@ -774,18 +778,24 @@ static void vhci_device_unlink_cleanup(struct vhci_device *vdev)
 
 		urb->status = -ENODEV;
 
-		spin_lock(&the_controller->lock);
 		usb_hcd_unlink_urb_from_ep(vhci_to_hcd(the_controller), urb);
+
+		list_del(&unlink->list);
+
+		spin_unlock(&vdev->priv_lock);
 		spin_unlock(&the_controller->lock);
 
 		usb_hcd_giveback_urb(vhci_to_hcd(the_controller), urb,
 				     urb->status);
 
-		list_del(&unlink->list);
+		spin_lock(&the_controller->lock);
+		spin_lock(&vdev->priv_lock);
+
 		kfree(unlink);
 	}
 
 	spin_unlock(&vdev->priv_lock);
+	spin_unlock(&the_controller->lock);
 }
 
 /*
@@ -804,11 +814,14 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
 	}
 
 	/* kill threads related to this sdev, if v.c. exists */
-	if (vdev->ud.tcp_rx)
+	if (vdev->ud.tcp_rx) {
 		kthread_stop_put(vdev->ud.tcp_rx);
-	if (vdev->ud.tcp_tx)
+		vdev->ud.tcp_rx = NULL;
+	}
+	if (vdev->ud.tcp_tx) {
 		kthread_stop_put(vdev->ud.tcp_tx);
-
+		vdev->ud.tcp_tx = NULL;
+	}
 	pr_info("stop threads\n");
 
 	/* active connection is closed */
@@ -828,11 +841,11 @@ static void vhci_shutdown_connection(struct usbip_device *ud)
 	 *	disable endpoints. pending urbs are unlinked(dequeued).
 	 *
 	 * NOTE: After calling rh_port_disconnect(), the USB device drivers of a
-	 * deteched device should release used urbs in a cleanup function(i.e.
+	 * detached device should release used urbs in a cleanup function (i.e.
 	 * xxx_disconnect()). Therefore, vhci_hcd does not need to release
 	 * pushed urbs and their private data in this function.
 	 *
-	 * NOTE: vhci_dequeue() must be considered carefully. When shutdowning
+	 * NOTE: vhci_dequeue() must be considered carefully. When shutting down
 	 * a connection, vhci_shutdown_connection() expects vhci_dequeue()
 	 * gives back pushed urbs and frees their private data by request of
 	 * the cleanup function of a USB driver. When unlinking a urb with an
diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c
index 4bf8e05ac31..dad8281915b 100644
--- a/drivers/staging/vme/devices/vme_pio2_core.c
+++ b/drivers/staging/vme/devices/vme_pio2_core.c
@@ -10,6 +10,8 @@
  * option) any later version.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/types.h>
@@ -163,15 +165,13 @@ static int __init pio2_init(void)
 	int retval = 0;
 
 	if (bus_num == 0) {
-		printk(KERN_ERR "%s: No cards, skipping registration\n",
-			driver_name);
+		pr_err("No cards, skipping registration\n");
 		goto err_nocard;
 	}
 
 	if (bus_num > PIO2_CARDS_MAX) {
-		printk(KERN_ERR
-			"%s: Driver only able to handle %d PIO2 Cards\n",
-			driver_name, PIO2_CARDS_MAX);
+		pr_err("Driver only able to handle %d PIO2 Cards\n",
+		       PIO2_CARDS_MAX);
 		bus_num = PIO2_CARDS_MAX;
 	}
 
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index e25645e226e..c3f94f311ca 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -64,13 +64,13 @@ static unsigned int bus_num;
  *
  * However the VME driver at http://www.vmelinux.org/ is rather old and doesn't
  * even support the tsi148 chipset (which has 8 master and 8 slave windows).
- * We'll run with this or now as far as possible, however it probably makes
+ * We'll run with this for now as far as possible, however it probably makes
  * sense to get rid of the old mappings and just do everything dynamically.
  *
  * So for now, we'll restrict the driver to providing 4 masters and 4 slaves as
  * defined above and try to support at least some of the interface from
- * http://www.vmelinux.org/ as an alternative drive can be written providing a
- * saner interface later.
+ * http://www.vmelinux.org/ as an alternative the driver can be written
+ * providing a saner interface later.
  *
  * The vmelinux.org driver never supported slave images, the devices reserved
  * for slaves were repurposed to support all 8 master images on the UniverseII!
@@ -242,7 +242,7 @@ static ssize_t resource_to_user(int minor, char __user *buf, size_t count,
 }
 
 /*
- * We are going ot alloc a page during init per window for small transfers.
+ * We are going to alloc a page during init per window for small transfers.
  * Small transfers will go user space -> buffer -> VME. Larger (more than a
  * page) transfers will lock the user space buffer into memory and then
  * transfer the data directly from the user space buffers out to VME.
@@ -396,7 +396,7 @@ static ssize_t vme_user_write(struct file *file, const char __user *buf,
 	default:
 		retval = -EINVAL;
 	}
-	
+
 	mutex_unlock(&image[minor].mutex);
 
 	if (retval > 0)
diff --git a/drivers/staging/vt6655/80211mgr.h b/drivers/staging/vt6655/80211mgr.h
index 3bdab3f56f1..65780f28db4 100644
--- a/drivers/staging/vt6655/80211mgr.h
+++ b/drivers/staging/vt6655/80211mgr.h
@@ -186,7 +186,7 @@
 
 
 //
-// Cipher Suite Selectors defiened in 802.11i
+// Cipher Suite Selectors defined in 802.11i
 //
 #define WLAN_11i_CSS_USE_GROUP              0
 #define WLAN_11i_CSS_WEP40                  1
diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c
index e7b93a21e3b..8d2c6a789ab 100644
--- a/drivers/staging/vt6655/baseband.c
+++ b/drivers/staging/vt6655/baseband.c
@@ -28,8 +28,8 @@
  * Functions:
  *      BBuGetFrameTime        - Calculate data frame transmitting time
  *      BBvCaculateParameter   - Caculate PhyLength, PhyService and Phy Signal parameter for baseband Tx
- *      BBbReadEmbeded         - Embeded read baseband register via MAC
- *      BBbWriteEmbeded        - Embeded write baseband register via MAC
+ *      BBbReadEmbedded         - Embedded read baseband register via MAC
+ *      BBbWriteEmbedded        - Embedded write baseband register via MAC
  *      BBbIsRegBitsOn         - Test if baseband register bits on
  *      BBbIsRegBitsOff        - Test if baseband register bits off
  *      BBbVT3253Init          - VIA VT3253 baseband chip init code
@@ -40,7 +40,7 @@
  * Revision History:
  *      06-10-2003 Bryan YC Fan:  Re-write codes to support VT3253 spec.
  *      08-07-2003 Bryan YC Fan:  Add MAXIM2827/2825 and RFMD2959 support.
- *      08-26-2003 Kyle Hsu    :  Modify BBuGetFrameTime() and BBvCaculateParameter().
+ *      08-26-2003 Kyle Hsu    :  Modify BBuGetFrameTime() and BBvCalculateParameter().
  *                                cancel the setting of MAC_REG_SOFTPWRCTL on BBbVT3253Init().
  *                                Add the comments.
  *      09-01-2003 Bryan YC Fan:  RF & BB tables updated.
@@ -1826,7 +1826,7 @@ BBuGetFrameTime (
 }
 
 /*
- * Description: Caculate Length, Service, and Signal fields of Phy for Tx
+ * Description: Calculate Length, Service, and Signal fields of Phy for Tx
  *
  * Parameters:
  *  In:
@@ -1842,7 +1842,7 @@ BBuGetFrameTime (
  *
  */
 void
-BBvCaculateParameter (
+BBvCalculateParameter (
     PSDevice pDevice,
     unsigned int cbFrameLength,
     unsigned short wRate,
@@ -2001,7 +2001,7 @@ BBvCaculateParameter (
 }
 
 /*
- * Description: Read a byte from BASEBAND, by embeded programming
+ * Description: Read a byte from BASEBAND, by embedded programming
  *
  * Parameters:
  *  In:
@@ -2013,7 +2013,7 @@ BBvCaculateParameter (
  * Return Value: true if succeeded; false if failed.
  *
  */
-bool BBbReadEmbeded (unsigned long dwIoBase, unsigned char byBBAddr, unsigned char *pbyData)
+bool BBbReadEmbedded (unsigned long dwIoBase, unsigned char byBBAddr, unsigned char *pbyData)
 {
     unsigned short ww;
     unsigned char byValue;
@@ -2043,7 +2043,7 @@ bool BBbReadEmbeded (unsigned long dwIoBase, unsigned char byBBAddr, unsigned ch
 
 
 /*
- * Description: Write a Byte to BASEBAND, by embeded programming
+ * Description: Write a Byte to BASEBAND, by embedded programming
  *
  * Parameters:
  *  In:
@@ -2056,7 +2056,7 @@ bool BBbReadEmbeded (unsigned long dwIoBase, unsigned char byBBAddr, unsigned ch
  * Return Value: true if succeeded; false if failed.
  *
  */
-bool BBbWriteEmbeded (unsigned long dwIoBase, unsigned char byBBAddr, unsigned char byData)
+bool BBbWriteEmbedded (unsigned long dwIoBase, unsigned char byBBAddr, unsigned char byData)
 {
     unsigned short ww;
     unsigned char byValue;
@@ -2102,7 +2102,7 @@ bool BBbIsRegBitsOn (unsigned long dwIoBase, unsigned char byBBAddr, unsigned ch
 {
     unsigned char byOrgData;
 
-    BBbReadEmbeded(dwIoBase, byBBAddr, &byOrgData);
+    BBbReadEmbedded(dwIoBase, byBBAddr, &byOrgData);
     return (byOrgData & byTestBits) == byTestBits;
 }
 
@@ -2125,7 +2125,7 @@ bool BBbIsRegBitsOff (unsigned long dwIoBase, unsigned char byBBAddr, unsigned c
 {
     unsigned char byOrgData;
 
-    BBbReadEmbeded(dwIoBase, byBBAddr, &byOrgData);
+    BBbReadEmbedded(dwIoBase, byBBAddr, &byOrgData);
     return (byOrgData & byTestBits) == 0;
 }
 
@@ -2155,14 +2155,14 @@ bool BBbVT3253Init (PSDevice pDevice)
     if (byRFType == RF_RFMD2959) {
         if (byLocalID <= REV_ID_VT3253_A1) {
             for (ii = 0; ii < CB_VT3253_INIT_FOR_RFMD; ii++) {
-                bResult &= BBbWriteEmbeded(dwIoBase,byVT3253InitTab_RFMD[ii][0],byVT3253InitTab_RFMD[ii][1]);
+                bResult &= BBbWriteEmbedded(dwIoBase,byVT3253InitTab_RFMD[ii][0],byVT3253InitTab_RFMD[ii][1]);
             }
         } else {
             for (ii = 0; ii < CB_VT3253B0_INIT_FOR_RFMD; ii++) {
-                bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_RFMD[ii][0],byVT3253B0_RFMD[ii][1]);
+                bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_RFMD[ii][0],byVT3253B0_RFMD[ii][1]);
             }
             for (ii = 0; ii < CB_VT3253B0_AGC_FOR_RFMD2959; ii++) {
-        	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AGC4_RFMD2959[ii][0],byVT3253B0_AGC4_RFMD2959[ii][1]);
+        	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AGC4_RFMD2959[ii][0],byVT3253B0_AGC4_RFMD2959[ii][1]);
             }
             VNSvOutPortD(dwIoBase + MAC_REG_ITRTMSET, 0x23);
             MACvRegBitsOn(dwIoBase, MAC_REG_PAPEDELAY, BIT0);
@@ -2177,10 +2177,10 @@ bool BBbVT3253Init (PSDevice pDevice)
         pDevice->ldBmThreshold[3] = 0;
     } else if ((byRFType == RF_AIROHA) || (byRFType == RF_AL2230S) ) {
         for (ii = 0; ii < CB_VT3253B0_INIT_FOR_AIROHA2230; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AIROHA2230[ii][0],byVT3253B0_AIROHA2230[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AIROHA2230[ii][0],byVT3253B0_AIROHA2230[ii][1]);
     	}
         for (ii = 0; ii < CB_VT3253B0_AGC; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
     	}
         pDevice->abyBBVGA[0] = 0x1C;
         pDevice->abyBBVGA[1] = 0x10;
@@ -2192,10 +2192,10 @@ bool BBbVT3253Init (PSDevice pDevice)
         pDevice->ldBmThreshold[3] = 0;
     } else if (byRFType == RF_UW2451) {
         for (ii = 0; ii < CB_VT3253B0_INIT_FOR_UW2451; ii++) {
-    	        bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_UW2451[ii][0],byVT3253B0_UW2451[ii][1]);
+    	        bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_UW2451[ii][0],byVT3253B0_UW2451[ii][1]);
     	}
         for (ii = 0; ii < CB_VT3253B0_AGC; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
     	}
         VNSvOutPortB(dwIoBase + MAC_REG_ITRTMSET, 0x23);
         MACvRegBitsOn(dwIoBase, MAC_REG_PAPEDELAY, BIT0);
@@ -2210,28 +2210,28 @@ bool BBbVT3253Init (PSDevice pDevice)
         pDevice->ldBmThreshold[3] = 0;
     } else if (byRFType == RF_UW2452) {
         for (ii = 0; ii < CB_VT3253B0_INIT_FOR_UW2451; ii++) {
-            bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_UW2451[ii][0],byVT3253B0_UW2451[ii][1]);
+            bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_UW2451[ii][0],byVT3253B0_UW2451[ii][1]);
     	}
         // Init ANT B select,TX Config CR09 = 0x61->0x45, 0x45->0x41(VC1/VC2 define, make the ANT_A, ANT_B inverted)
-        //bResult &= BBbWriteEmbeded(dwIoBase,0x09,0x41);
+        //bResult &= BBbWriteEmbedded(dwIoBase,0x09,0x41);
         // Init ANT B select,RX Config CR10 = 0x28->0x2A, 0x2A->0x28(VC1/VC2 define, make the ANT_A, ANT_B inverted)
-        //bResult &= BBbWriteEmbeded(dwIoBase,0x0a,0x28);
+        //bResult &= BBbWriteEmbedded(dwIoBase,0x0a,0x28);
         // Select VC1/VC2, CR215 = 0x02->0x06
-        bResult &= BBbWriteEmbeded(dwIoBase,0xd7,0x06);
+        bResult &= BBbWriteEmbedded(dwIoBase,0xd7,0x06);
 
         //{{RobertYu:20050125, request by Jack
-        bResult &= BBbWriteEmbeded(dwIoBase,0x90,0x20);
-        bResult &= BBbWriteEmbeded(dwIoBase,0x97,0xeb);
+        bResult &= BBbWriteEmbedded(dwIoBase,0x90,0x20);
+        bResult &= BBbWriteEmbedded(dwIoBase,0x97,0xeb);
         //}}
 
         //{{RobertYu:20050221, request by Jack
-        bResult &= BBbWriteEmbeded(dwIoBase,0xa6,0x00);
-        bResult &= BBbWriteEmbeded(dwIoBase,0xa8,0x30);
+        bResult &= BBbWriteEmbedded(dwIoBase,0xa6,0x00);
+        bResult &= BBbWriteEmbedded(dwIoBase,0xa8,0x30);
         //}}
-        bResult &= BBbWriteEmbeded(dwIoBase,0xb0,0x58);
+        bResult &= BBbWriteEmbedded(dwIoBase,0xb0,0x58);
 
         for (ii = 0; ii < CB_VT3253B0_AGC; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
     	}
         //VNSvOutPortB(dwIoBase + MAC_REG_ITRTMSET, 0x23); // RobertYu: 20050104, 20050131 disable PA_Delay
         //MACvRegBitsOn(dwIoBase, MAC_REG_PAPEDELAY, BIT0); // RobertYu: 20050104, 20050131 disable PA_Delay
@@ -2248,10 +2248,10 @@ bool BBbVT3253Init (PSDevice pDevice)
 
     } else if (byRFType == RF_VT3226) {
         for (ii = 0; ii < CB_VT3253B0_INIT_FOR_AIROHA2230; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AIROHA2230[ii][0],byVT3253B0_AIROHA2230[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AIROHA2230[ii][0],byVT3253B0_AIROHA2230[ii][1]);
     	}
         for (ii = 0; ii < CB_VT3253B0_AGC; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
     	}
         pDevice->abyBBVGA[0] = 0x1C;
         pDevice->abyBBVGA[1] = 0x10;
@@ -2266,20 +2266,20 @@ bool BBbVT3253Init (PSDevice pDevice)
          //{{ RobertYu: 20050104
     } else if (byRFType == RF_AIROHA7230) {
         for (ii = 0; ii < CB_VT3253B0_INIT_FOR_AIROHA2230; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AIROHA2230[ii][0],byVT3253B0_AIROHA2230[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AIROHA2230[ii][0],byVT3253B0_AIROHA2230[ii][1]);
     	}
 
         //{{ RobertYu:20050223, request by JerryChung
         // Init ANT B select,TX Config CR09 = 0x61->0x45, 0x45->0x41(VC1/VC2 define, make the ANT_A, ANT_B inverted)
-        //bResult &= BBbWriteEmbeded(dwIoBase,0x09,0x41);
+        //bResult &= BBbWriteEmbedded(dwIoBase,0x09,0x41);
         // Init ANT B select,RX Config CR10 = 0x28->0x2A, 0x2A->0x28(VC1/VC2 define, make the ANT_A, ANT_B inverted)
-        //bResult &= BBbWriteEmbeded(dwIoBase,0x0a,0x28);
+        //bResult &= BBbWriteEmbedded(dwIoBase,0x0a,0x28);
         // Select VC1/VC2, CR215 = 0x02->0x06
-        bResult &= BBbWriteEmbeded(dwIoBase,0xd7,0x06);
+        bResult &= BBbWriteEmbedded(dwIoBase,0xd7,0x06);
         //}}
 
         for (ii = 0; ii < CB_VT3253B0_AGC; ii++) {
-    	    bResult &= BBbWriteEmbeded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
+    	    bResult &= BBbWriteEmbedded(dwIoBase,byVT3253B0_AGC[ii][0],byVT3253B0_AGC[ii][1]);
     	}
         pDevice->abyBBVGA[0] = 0x1C;
         pDevice->abyBBVGA[1] = 0x10;
@@ -2297,8 +2297,8 @@ bool BBbVT3253Init (PSDevice pDevice)
     }
 
     if (byLocalID > REV_ID_VT3253_A1) {
-        BBbWriteEmbeded(dwIoBase, 0x04, 0x7F);
-        BBbWriteEmbeded(dwIoBase, 0x0D, 0x01);
+        BBbWriteEmbedded(dwIoBase, 0x04, 0x7F);
+        BBbWriteEmbedded(dwIoBase, 0x0D, 0x01);
     }
 
     return bResult;
@@ -2324,7 +2324,7 @@ void BBvReadAllRegs (unsigned long dwIoBase, unsigned char *pbyBBRegs)
     int  ii;
     unsigned char byBase = 1;
     for (ii = 0; ii < BB_MAX_CONTEXT_SIZE; ii++) {
-        BBbReadEmbeded(dwIoBase, (unsigned char)(ii*byBase), pbyBBRegs);
+        BBbReadEmbedded(dwIoBase, (unsigned char)(ii*byBase), pbyBBRegs);
         pbyBBRegs += byBase;
     }
 }
@@ -2350,39 +2350,39 @@ void BBvLoopbackOn (PSDevice pDevice)
     unsigned long dwIoBase = pDevice->PortOffset;
 
     //CR C9 = 0x00
-    BBbReadEmbeded(dwIoBase, 0xC9, &pDevice->byBBCRc9);//CR201
-    BBbWriteEmbeded(dwIoBase, 0xC9, 0);
-    BBbReadEmbeded(dwIoBase, 0x4D, &pDevice->byBBCR4d);//CR77
-    BBbWriteEmbeded(dwIoBase, 0x4D, 0x90);
+    BBbReadEmbedded(dwIoBase, 0xC9, &pDevice->byBBCRc9);//CR201
+    BBbWriteEmbedded(dwIoBase, 0xC9, 0);
+    BBbReadEmbedded(dwIoBase, 0x4D, &pDevice->byBBCR4d);//CR77
+    BBbWriteEmbedded(dwIoBase, 0x4D, 0x90);
 
     //CR 88 = 0x02(CCK), 0x03(OFDM)
-    BBbReadEmbeded(dwIoBase, 0x88, &pDevice->byBBCR88);//CR136
+    BBbReadEmbedded(dwIoBase, 0x88, &pDevice->byBBCR88);//CR136
 
     if (pDevice->uConnectionRate <= RATE_11M) { //CCK
         // Enable internal digital loopback: CR33 |= 0000 0001
-        BBbReadEmbeded(dwIoBase, 0x21, &byData);//CR33
-        BBbWriteEmbeded(dwIoBase, 0x21, (unsigned char)(byData | 0x01));//CR33
+        BBbReadEmbedded(dwIoBase, 0x21, &byData);//CR33
+        BBbWriteEmbedded(dwIoBase, 0x21, (unsigned char)(byData | 0x01));//CR33
         // CR154 = 0x00
-        BBbWriteEmbeded(dwIoBase, 0x9A, 0);   //CR154
+        BBbWriteEmbedded(dwIoBase, 0x9A, 0);   //CR154
 
-        BBbWriteEmbeded(dwIoBase, 0x88, 0x02);//CR239
+        BBbWriteEmbedded(dwIoBase, 0x88, 0x02);//CR239
     }
     else { //OFDM
         // Enable internal digital loopback:CR154 |= 0000 0001
-        BBbReadEmbeded(dwIoBase, 0x9A, &byData);//CR154
-        BBbWriteEmbeded(dwIoBase, 0x9A, (unsigned char)(byData | 0x01));//CR154
+        BBbReadEmbedded(dwIoBase, 0x9A, &byData);//CR154
+        BBbWriteEmbedded(dwIoBase, 0x9A, (unsigned char)(byData | 0x01));//CR154
         // CR33 = 0x00
-        BBbWriteEmbeded(dwIoBase, 0x21, 0);   //CR33
+        BBbWriteEmbedded(dwIoBase, 0x21, 0);   //CR33
 
-        BBbWriteEmbeded(dwIoBase, 0x88, 0x03);//CR239
+        BBbWriteEmbedded(dwIoBase, 0x88, 0x03);//CR239
     }
 
     //CR14 = 0x00
-    BBbWriteEmbeded(dwIoBase, 0x0E, 0);//CR14
+    BBbWriteEmbedded(dwIoBase, 0x0E, 0);//CR14
 
     // Disable TX_IQUN
-    BBbReadEmbeded(pDevice->PortOffset, 0x09, &pDevice->byBBCR09);
-    BBbWriteEmbeded(pDevice->PortOffset, 0x09, (unsigned char)(pDevice->byBBCR09 & 0xDE));
+    BBbReadEmbedded(pDevice->PortOffset, 0x09, &pDevice->byBBCR09);
+    BBbWriteEmbedded(pDevice->PortOffset, 0x09, (unsigned char)(pDevice->byBBCR09 & 0xDE));
 }
 
 /*
@@ -2403,22 +2403,22 @@ void BBvLoopbackOff (PSDevice pDevice)
     unsigned char byData;
     unsigned long dwIoBase = pDevice->PortOffset;
 
-    BBbWriteEmbeded(dwIoBase, 0xC9, pDevice->byBBCRc9);//CR201
-    BBbWriteEmbeded(dwIoBase, 0x88, pDevice->byBBCR88);//CR136
-    BBbWriteEmbeded(dwIoBase, 0x09, pDevice->byBBCR09);//CR136
-    BBbWriteEmbeded(dwIoBase, 0x4D, pDevice->byBBCR4d);//CR77
+    BBbWriteEmbedded(dwIoBase, 0xC9, pDevice->byBBCRc9);//CR201
+    BBbWriteEmbedded(dwIoBase, 0x88, pDevice->byBBCR88);//CR136
+    BBbWriteEmbedded(dwIoBase, 0x09, pDevice->byBBCR09);//CR136
+    BBbWriteEmbedded(dwIoBase, 0x4D, pDevice->byBBCR4d);//CR77
 
     if (pDevice->uConnectionRate <= RATE_11M) { // CCK
         // Set the CR33 Bit2 to disable internal Loopback.
-        BBbReadEmbeded(dwIoBase, 0x21, &byData);//CR33
-        BBbWriteEmbeded(dwIoBase, 0x21, (unsigned char)(byData & 0xFE));//CR33
+        BBbReadEmbedded(dwIoBase, 0x21, &byData);//CR33
+        BBbWriteEmbedded(dwIoBase, 0x21, (unsigned char)(byData & 0xFE));//CR33
     }
     else { // OFDM
-        BBbReadEmbeded(dwIoBase, 0x9A, &byData);//CR154
-        BBbWriteEmbeded(dwIoBase, 0x9A, (unsigned char)(byData & 0xFE));//CR154
+        BBbReadEmbedded(dwIoBase, 0x9A, &byData);//CR154
+        BBbWriteEmbedded(dwIoBase, 0x9A, (unsigned char)(byData & 0xFE));//CR154
     }
-    BBbReadEmbeded(dwIoBase, 0x0E, &byData);//CR14
-    BBbWriteEmbeded(dwIoBase, 0x0E, (unsigned char)(byData | 0x80));//CR14
+    BBbReadEmbedded(dwIoBase, 0x0E, &byData);//CR14
+    BBbWriteEmbedded(dwIoBase, 0x0E, (unsigned char)(byData | 0x80));//CR14
 
 }
 
@@ -2442,7 +2442,7 @@ BBvSetShortSlotTime (PSDevice pDevice)
     unsigned char byBBRxConf=0;
     unsigned char byBBVGA=0;
 
-    BBbReadEmbeded(pDevice->PortOffset, 0x0A, &byBBRxConf);//CR10
+    BBbReadEmbedded(pDevice->PortOffset, 0x0A, &byBBRxConf);//CR10
 
     if (pDevice->bShortSlotTime) {
         byBBRxConf &= 0xDF;//1101 1111
@@ -2451,12 +2451,12 @@ BBvSetShortSlotTime (PSDevice pDevice)
     }
 
     // patch for 3253B0 Baseband with Cardbus module
-    BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byBBVGA);
+    BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byBBVGA);
     if (byBBVGA == pDevice->abyBBVGA[0]) {
         byBBRxConf |= 0x20;//0010 0000
     }
 
-    BBbWriteEmbeded(pDevice->PortOffset, 0x0A, byBBRxConf);//CR10
+    BBbWriteEmbedded(pDevice->PortOffset, 0x0A, byBBRxConf);//CR10
 
 }
 
@@ -2464,9 +2464,9 @@ void BBvSetVGAGainOffset(PSDevice pDevice, unsigned char byData)
 {
     unsigned char byBBRxConf=0;
 
-    BBbWriteEmbeded(pDevice->PortOffset, 0xE7, byData);
+    BBbWriteEmbedded(pDevice->PortOffset, 0xE7, byData);
 
-    BBbReadEmbeded(pDevice->PortOffset, 0x0A, &byBBRxConf);//CR10
+    BBbReadEmbedded(pDevice->PortOffset, 0x0A, &byBBRxConf);//CR10
     // patch for 3253B0 Baseband with Cardbus module
     if (byData == pDevice->abyBBVGA[0]) {
         byBBRxConf |= 0x20;//0010 0000
@@ -2476,7 +2476,7 @@ void BBvSetVGAGainOffset(PSDevice pDevice, unsigned char byData)
         byBBRxConf |= 0x20;//0010 0000
     }
     pDevice->byBBVGACurrent = byData;
-    BBbWriteEmbeded(pDevice->PortOffset, 0x0A, byBBRxConf);//CR10
+    BBbWriteEmbedded(pDevice->PortOffset, 0x0A, byBBRxConf);//CR10
 }
 
 
@@ -2495,10 +2495,10 @@ void BBvSetVGAGainOffset(PSDevice pDevice, unsigned char byData)
 void
 BBvSoftwareReset (unsigned long dwIoBase)
 {
-    BBbWriteEmbeded(dwIoBase, 0x50, 0x40);
-    BBbWriteEmbeded(dwIoBase, 0x50, 0);
-    BBbWriteEmbeded(dwIoBase, 0x9C, 0x01);
-    BBbWriteEmbeded(dwIoBase, 0x9C, 0);
+    BBbWriteEmbedded(dwIoBase, 0x50, 0x40);
+    BBbWriteEmbedded(dwIoBase, 0x50, 0);
+    BBbWriteEmbedded(dwIoBase, 0x9C, 0x01);
+    BBbWriteEmbedded(dwIoBase, 0x9C, 0);
 }
 
 /*
@@ -2518,9 +2518,9 @@ BBvPowerSaveModeON (unsigned long dwIoBase)
 {
     unsigned char byOrgData;
 
-    BBbReadEmbeded(dwIoBase, 0x0D, &byOrgData);
+    BBbReadEmbedded(dwIoBase, 0x0D, &byOrgData);
     byOrgData |= BIT0;
-    BBbWriteEmbeded(dwIoBase, 0x0D, byOrgData);
+    BBbWriteEmbedded(dwIoBase, 0x0D, byOrgData);
 }
 
 /*
@@ -2540,9 +2540,9 @@ BBvPowerSaveModeOFF (unsigned long dwIoBase)
 {
     unsigned char byOrgData;
 
-    BBbReadEmbeded(dwIoBase, 0x0D, &byOrgData);
+    BBbReadEmbedded(dwIoBase, 0x0D, &byOrgData);
     byOrgData &= ~(BIT0);
-    BBbWriteEmbeded(dwIoBase, 0x0D, byOrgData);
+    BBbWriteEmbedded(dwIoBase, 0x0D, byOrgData);
 }
 
 /*
@@ -2567,7 +2567,7 @@ BBvSetTxAntennaMode (unsigned long dwIoBase, unsigned char byAntennaMode)
 #ifdef	PLICE_DEBUG
 	//printk("Enter BBvSetTxAntennaMode\n");
 #endif
-    BBbReadEmbeded(dwIoBase, 0x09, &byBBTxConf);//CR09
+    BBbReadEmbedded(dwIoBase, 0x09, &byBBTxConf);//CR09
     if (byAntennaMode == ANT_DIVERSITY) {
         // bit 1 is diversity
         byBBTxConf |= 0x02;
@@ -2581,7 +2581,7 @@ BBvSetTxAntennaMode (unsigned long dwIoBase, unsigned char byAntennaMode)
         byBBTxConf &= 0xFD; // 1111 1101
         byBBTxConf |= 0x04;
     }
-    BBbWriteEmbeded(dwIoBase, 0x09, byBBTxConf);//CR09
+    BBbWriteEmbedded(dwIoBase, 0x09, byBBTxConf);//CR09
 }
 
 
@@ -2606,7 +2606,7 @@ BBvSetRxAntennaMode (unsigned long dwIoBase, unsigned char byAntennaMode)
 {
     unsigned char byBBRxConf;
 
-    BBbReadEmbeded(dwIoBase, 0x0A, &byBBRxConf);//CR10
+    BBbReadEmbedded(dwIoBase, 0x0A, &byBBRxConf);//CR10
     if (byAntennaMode == ANT_DIVERSITY) {
         byBBRxConf |= 0x01;
 
@@ -2616,7 +2616,7 @@ BBvSetRxAntennaMode (unsigned long dwIoBase, unsigned char byAntennaMode)
         byBBRxConf &= 0xFE; // 1111 1110
         byBBRxConf |= 0x02;
     }
-    BBbWriteEmbeded(dwIoBase, 0x0A, byBBRxConf);//CR10
+    BBbWriteEmbedded(dwIoBase, 0x0A, byBBRxConf);//CR10
 }
 
 
@@ -2635,15 +2635,15 @@ BBvSetRxAntennaMode (unsigned long dwIoBase, unsigned char byAntennaMode)
 void
 BBvSetDeepSleep (unsigned long dwIoBase, unsigned char byLocalID)
 {
-    BBbWriteEmbeded(dwIoBase, 0x0C, 0x17);//CR12
-    BBbWriteEmbeded(dwIoBase, 0x0D, 0xB9);//CR13
+    BBbWriteEmbedded(dwIoBase, 0x0C, 0x17);//CR12
+    BBbWriteEmbedded(dwIoBase, 0x0D, 0xB9);//CR13
 }
 
 void
 BBvExitDeepSleep (unsigned long dwIoBase, unsigned char byLocalID)
 {
-    BBbWriteEmbeded(dwIoBase, 0x0C, 0x00);//CR12
-    BBbWriteEmbeded(dwIoBase, 0x0D, 0x01);//CR13
+    BBbWriteEmbedded(dwIoBase, 0x0C, 0x00);//CR12
+    BBbWriteEmbedded(dwIoBase, 0x0D, 0x01);//CR13
 }
 
 
diff --git a/drivers/staging/vt6655/baseband.h b/drivers/staging/vt6655/baseband.h
index be2d6890949..9b5bc9c58d9 100644
--- a/drivers/staging/vt6655/baseband.h
+++ b/drivers/staging/vt6655/baseband.h
@@ -73,12 +73,12 @@
 
 #define BBvClearFOE(dwIoBase)                               \
 {                                                           \
-    BBbWriteEmbeded(dwIoBase, 0xB1, 0);                     \
+    BBbWriteEmbedded(dwIoBase, 0xB1, 0);                     \
 }
 
 #define BBvSetFOE(dwIoBase)                                 \
 {                                                           \
-    BBbWriteEmbeded(dwIoBase, 0xB1, 0x0C);                  \
+    BBbWriteEmbedded(dwIoBase, 0xB1, 0x0C);                  \
 }
 
 
@@ -97,7 +97,7 @@ BBuGetFrameTime(
     );
 
 void
-BBvCaculateParameter (
+BBvCalculateParameter (
     PSDevice pDevice,
     unsigned int cbFrameLength,
     unsigned short wRate,
@@ -107,8 +107,8 @@ BBvCaculateParameter (
     unsigned char *pbyPhySgn
     );
 
-bool BBbReadEmbeded(unsigned long dwIoBase, unsigned char byBBAddr, unsigned char *pbyData);
-bool BBbWriteEmbeded(unsigned long dwIoBase, unsigned char byBBAddr, unsigned char byData);
+bool BBbReadEmbedded(unsigned long dwIoBase, unsigned char byBBAddr, unsigned char *pbyData);
+bool BBbWriteEmbedded(unsigned long dwIoBase, unsigned char byBBAddr, unsigned char byData);
 
 void BBvReadAllRegs(unsigned long dwIoBase, unsigned char *pbyBBRegs);
 void BBvLoopbackOn(PSDevice pDevice);
diff --git a/drivers/staging/vt6655/bssdb.c b/drivers/staging/vt6655/bssdb.c
index fcffa4f0f4e..fe57fb880a8 100644
--- a/drivers/staging/vt6655/bssdb.c
+++ b/drivers/staging/vt6655/bssdb.c
@@ -784,8 +784,8 @@ BSSDBbIsSTAInNodeDB(void *pMgmtObject, unsigned char *abyDstAddr,
 /*+
  *
  * Routine Description:
- *    Find an empty node and allocated; if no empty found,
- *    instand used of most inactive one.
+ *    Find an empty node and allocat it; if there is no empty node,
+ *    then use the most inactive one.
  *
  * Return Value:
  *    None
diff --git a/drivers/staging/vt6655/card.c b/drivers/staging/vt6655/card.c
index 2721e079849..319ca482f00 100644
--- a/drivers/staging/vt6655/card.c
+++ b/drivers/staging/vt6655/card.c
@@ -28,9 +28,9 @@
  *      CARDbIsOFDMinBasicRate - Check if any OFDM rate is in BasicRateSet
  *      CARDvSetLoopbackMode - Set Loopback mode
  *      CARDbSoftwareReset - Sortware reset NIC
- *      CARDqGetTSFOffset - Caculate TSFOffset
+ *      CARDqGetTSFOffset - Calculate TSFOffset
  *      CARDbGetCurrentTSF - Read Current NIC TSF counter
- *      CARDqGetNextTBTT - Caculate Next Beacon TSF counter
+ *      CARDqGetNextTBTT - Calculate Next Beacon TSF counter
  *      CARDvSetFirstNextTBTT - Set NIC Beacon time
  *      CARDvUpdateNextTBTT - Sync. NIC Beacon time
  *      CARDbRadioPowerOff - Turn Off NIC Radio Power
@@ -100,7 +100,7 @@ const unsigned short cwRXBCNTSFOff[MAX_RATE] =
 
 static
 void
-s_vCaculateOFDMRParameter(
+s_vCalculateOFDMRParameter(
     unsigned char byRate,
     CARD_PHY_TYPE ePHYType,
     unsigned char *pbyTxRate,
@@ -111,7 +111,7 @@ s_vCaculateOFDMRParameter(
 /*---------------------  Export Functions  --------------------------*/
 
 /*
- * Description: Caculate TxRate and RsvTime fields for RSPINF in OFDM mode.
+ * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode.
  *
  * Parameters:
  *  In:
@@ -126,7 +126,7 @@ s_vCaculateOFDMRParameter(
  */
 static
 void
-s_vCaculateOFDMRParameter (
+s_vCalculateOFDMRParameter (
     unsigned char byRate,
     CARD_PHY_TYPE ePHYType,
     unsigned char *pbyTxRate,
@@ -251,7 +251,7 @@ s_vSetRSPINF (PSDevice pDevice, CARD_PHY_TYPE ePHYType, void *pvSupportRateIEs,
     MACvSelectPage1(pDevice->PortOffset);
 
     //RSPINF_b_1
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          VNTWIFIbyGetACKTxRate(RATE_1M, pvSupportRateIEs, pvExtSupportRateIEs),
                          PK_TYPE_11B,
@@ -262,7 +262,7 @@ s_vSetRSPINF (PSDevice pDevice, CARD_PHY_TYPE ePHYType, void *pvSupportRateIEs,
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_1, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     ///RSPINF_b_2
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          VNTWIFIbyGetACKTxRate(RATE_2M, pvSupportRateIEs, pvExtSupportRateIEs),
                          PK_TYPE_11B,
@@ -273,7 +273,7 @@ s_vSetRSPINF (PSDevice pDevice, CARD_PHY_TYPE ePHYType, void *pvSupportRateIEs,
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_2, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     //RSPINF_b_5
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          VNTWIFIbyGetACKTxRate(RATE_5M, pvSupportRateIEs, pvExtSupportRateIEs),
                          PK_TYPE_11B,
@@ -284,7 +284,7 @@ s_vSetRSPINF (PSDevice pDevice, CARD_PHY_TYPE ePHYType, void *pvSupportRateIEs,
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_5, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     //RSPINF_b_11
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          VNTWIFIbyGetACKTxRate(RATE_11M, pvSupportRateIEs, pvExtSupportRateIEs),
                          PK_TYPE_11B,
@@ -295,51 +295,51 @@ s_vSetRSPINF (PSDevice pDevice, CARD_PHY_TYPE ePHYType, void *pvSupportRateIEs,
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_11, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     //RSPINF_a_6
-    s_vCaculateOFDMRParameter(RATE_6M,
+    s_vCalculateOFDMRParameter(RATE_6M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_6, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_9
-    s_vCaculateOFDMRParameter(RATE_9M,
+    s_vCalculateOFDMRParameter(RATE_9M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_9, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_12
-    s_vCaculateOFDMRParameter(RATE_12M,
+    s_vCalculateOFDMRParameter(RATE_12M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_12, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_18
-    s_vCaculateOFDMRParameter(RATE_18M,
+    s_vCalculateOFDMRParameter(RATE_18M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_18, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_24
-    s_vCaculateOFDMRParameter(RATE_24M,
+    s_vCalculateOFDMRParameter(RATE_24M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_24, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_36
-    s_vCaculateOFDMRParameter(
+    s_vCalculateOFDMRParameter(
                               VNTWIFIbyGetACKTxRate(RATE_36M, pvSupportRateIEs, pvExtSupportRateIEs),
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_36, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_48
-    s_vCaculateOFDMRParameter(
+    s_vCalculateOFDMRParameter(
                               VNTWIFIbyGetACKTxRate(RATE_48M, pvSupportRateIEs, pvExtSupportRateIEs),
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_48, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_54
-    s_vCaculateOFDMRParameter(
+    s_vCalculateOFDMRParameter(
                               VNTWIFIbyGetACKTxRate(RATE_54M, pvSupportRateIEs, pvExtSupportRateIEs),
                               ePHYType,
                               &byTxRate,
@@ -461,22 +461,22 @@ bool CARDbSetPhyParameter (void *pDeviceHandler, CARD_PHY_TYPE ePHYType, unsigne
             pDevice->abyBBVGA[0] = 0x20;
             pDevice->abyBBVGA[2] = 0x10;
             pDevice->abyBBVGA[3] = 0x10;
-            BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byData);
+            BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byData);
             if (byData == 0x1C) {
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
             }
         } else if (pDevice->byRFType == RF_UW2452) {
             MACvSetBBType(pDevice->PortOffset, BB_TYPE_11A);
             pDevice->abyBBVGA[0] = 0x18;
-            BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byData);
+            BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byData);
             if (byData == 0x14) {
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE1, 0x57);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE1, 0x57);
             }
         } else {
             MACvSetBBType(pDevice->PortOffset, BB_TYPE_11A);
         }
-        BBbWriteEmbeded(pDevice->PortOffset, 0x88, 0x03);
+        BBbWriteEmbedded(pDevice->PortOffset, 0x88, 0x03);
         bySlot = C_SLOT_SHORT;
         bySIFS = C_SIFS_A;
         byDIFS = C_SIFS_A + 2*C_SLOT_SHORT;
@@ -490,19 +490,19 @@ bool CARDbSetPhyParameter (void *pDeviceHandler, CARD_PHY_TYPE ePHYType, unsigne
             pDevice->abyBBVGA[0] = 0x1C;
             pDevice->abyBBVGA[2] = 0x00;
             pDevice->abyBBVGA[3] = 0x00;
-            BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byData);
+            BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byData);
             if (byData == 0x20) {
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
             }
         } else if (pDevice->byRFType == RF_UW2452) {
             pDevice->abyBBVGA[0] = 0x14;
-            BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byData);
+            BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byData);
             if (byData == 0x18) {
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE1, 0xD3);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE1, 0xD3);
             }
         }
-        BBbWriteEmbeded(pDevice->PortOffset, 0x88, 0x02);
+        BBbWriteEmbedded(pDevice->PortOffset, 0x88, 0x02);
         bySlot = C_SLOT_LONG;
         bySIFS = C_SIFS_BG;
         byDIFS = C_SIFS_BG + 2*C_SLOT_LONG;
@@ -517,19 +517,19 @@ bool CARDbSetPhyParameter (void *pDeviceHandler, CARD_PHY_TYPE ePHYType, unsigne
             pDevice->abyBBVGA[0] = 0x1C;
             pDevice->abyBBVGA[2] = 0x00;
             pDevice->abyBBVGA[3] = 0x00;
-            BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byData);
+            BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byData);
             if (byData == 0x20) {
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
             }
         } else if (pDevice->byRFType == RF_UW2452) {
             pDevice->abyBBVGA[0] = 0x14;
-            BBbReadEmbeded(pDevice->PortOffset, 0xE7, &byData);
+            BBbReadEmbedded(pDevice->PortOffset, 0xE7, &byData);
             if (byData == 0x18) {
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
-                BBbWriteEmbeded(pDevice->PortOffset, 0xE1, 0xD3);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE7, pDevice->abyBBVGA[0]);
+                BBbWriteEmbedded(pDevice->PortOffset, 0xE1, 0xD3);
             }
         }
-        BBbWriteEmbeded(pDevice->PortOffset, 0x88, 0x08);
+        BBbWriteEmbedded(pDevice->PortOffset, 0x88, 0x08);
         bySIFS = C_SIFS_BG;
         if(VNTWIFIbIsShortSlotTime(wCapInfo)) {
             bySlot = C_SLOT_SHORT;
@@ -1354,7 +1354,8 @@ CARDbSetQuiet (
 /*
  *
  * Description:
- *    Do Quiet, It will called by either ISR (after start) or VNTWIFI (before start) so do not need SPINLOCK
+ *    Do Quiet, It will be called by either ISR(after start) 
+ *    or VNTWIFI(before start) so we do not need a SPINLOCK
  *
  * Parameters:
  *  In:
@@ -1738,7 +1739,7 @@ void CARDvSetRSPINF (void *pDeviceHandler, CARD_PHY_TYPE ePHYType)
     MACvSelectPage1(pDevice->PortOffset);
 
     //RSPINF_b_1
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          CARDwGetCCKControlRate((void *)pDevice, RATE_1M),
                          PK_TYPE_11B,
@@ -1749,7 +1750,7 @@ void CARDvSetRSPINF (void *pDeviceHandler, CARD_PHY_TYPE ePHYType)
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_1, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     ///RSPINF_b_2
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          CARDwGetCCKControlRate((void *)pDevice, RATE_2M),
                          PK_TYPE_11B,
@@ -1760,7 +1761,7 @@ void CARDvSetRSPINF (void *pDeviceHandler, CARD_PHY_TYPE ePHYType)
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_2, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     //RSPINF_b_5
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          CARDwGetCCKControlRate((void *)pDevice, RATE_5M),
                          PK_TYPE_11B,
@@ -1771,7 +1772,7 @@ void CARDvSetRSPINF (void *pDeviceHandler, CARD_PHY_TYPE ePHYType)
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_5, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     //RSPINF_b_11
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          CARDwGetCCKControlRate((void *)pDevice, RATE_11M),
                          PK_TYPE_11B,
@@ -1782,56 +1783,56 @@ void CARDvSetRSPINF (void *pDeviceHandler, CARD_PHY_TYPE ePHYType)
 
     VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_11, MAKEDWORD(wLen,MAKEWORD(bySignal,byServ)));
     //RSPINF_a_6
-    s_vCaculateOFDMRParameter(RATE_6M,
+    s_vCalculateOFDMRParameter(RATE_6M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_6, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_9
-    s_vCaculateOFDMRParameter(RATE_9M,
+    s_vCalculateOFDMRParameter(RATE_9M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_9, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_12
-    s_vCaculateOFDMRParameter(RATE_12M,
+    s_vCalculateOFDMRParameter(RATE_12M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_12, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_18
-    s_vCaculateOFDMRParameter(RATE_18M,
+    s_vCalculateOFDMRParameter(RATE_18M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
    VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_18, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_24
-    s_vCaculateOFDMRParameter(RATE_24M,
+    s_vCalculateOFDMRParameter(RATE_24M,
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_24, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_36
-    s_vCaculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_36M),
+    s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_36M),
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_36, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_48
-    s_vCaculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_48M),
+    s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_48M),
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_48, MAKEWORD(byTxRate,byRsvTime));
     //RSPINF_a_54
-    s_vCaculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_54M),
+    s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_54M),
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
     VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_54, MAKEWORD(byTxRate,byRsvTime));
 
     //RSPINF_a_72
-    s_vCaculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_54M),
+    s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_54M),
                               ePHYType,
                               &byTxRate,
                               &byRsvTime);
@@ -2041,7 +2042,7 @@ bool CARDbSoftwareReset (void *pDeviceHandler)
 
 
 /*
- * Description: Caculate TSF offset of two TSF input
+ * Description: Calculate TSF offset of two TSF input
  *              Get TSF Offset from RxBCN's TSF and local TSF
  *
  * Parameters:
diff --git a/drivers/staging/vt6655/datarate.c b/drivers/staging/vt6655/datarate.c
index efbb8f45f72..b86ec1b6d18 100644
--- a/drivers/staging/vt6655/datarate.c
+++ b/drivers/staging/vt6655/datarate.c
@@ -126,7 +126,7 @@ DATARATEbyGetRateIdx (
 /*+
  *
  * Routine Description:
- *      Rate fallback Algorithm Implementaion
+ *      Rate fallback Algorithm Implementation
  *
  * Parameters:
  *  In:
diff --git a/drivers/staging/vt6655/device.h b/drivers/staging/vt6655/device.h
index c5e6b98d3e4..e54e00bc566 100644
--- a/drivers/staging/vt6655/device.h
+++ b/drivers/staging/vt6655/device.h
@@ -327,7 +327,7 @@ typedef struct tagSDeFragControlBlock
 //flags for driver status
 #define     DEVICE_FLAGS_OPENED          0x00010000UL
 #define     DEVICE_FLAGS_WOL_ENABLED     0x00080000UL
-//flags for capbilities
+//flags for capabilities
 #define     DEVICE_FLAGS_TX_ALIGN        0x01000000UL
 #define     DEVICE_FLAGS_HAVE_CAM        0x02000000UL
 #define     DEVICE_FLAGS_FLOW_CTRL       0x04000000UL
@@ -567,7 +567,7 @@ typedef struct __device_info {
     bool bPrvActive4RadioOFF;
     bool bGPIOBlockRead;
 
-    // Beacon releated
+    // Beacon related
     unsigned short wSeqCounter;
     unsigned short wBCNBufLen;
     bool bBeaconBufReady;
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 89d1c22695a..9e3b3f2bbe5 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -290,7 +290,7 @@ DEFINE_PCI_DEVICE_TABLE(vt6655_pci_id_table) = {
 
 
 static int  vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent);
-static bool vt6655_init_info(struct pci_dev* pcid, PSDevice* ppDevice, PCHIP_INFO);
+static void vt6655_init_info(struct pci_dev* pcid, PSDevice* ppDevice, PCHIP_INFO);
 static void device_free_info(PSDevice pDevice);
 static bool device_get_pci_info(PSDevice, struct pci_dev* pcid);
 static void device_print_info(PSDevice pDevice);
@@ -347,21 +347,22 @@ static int Config_FileGetParameter(unsigned char *string,
 
 
 
-static char* get_chip_name(int chip_id) {
-    int i;
-    for (i=0;chip_info_table[i].name!=NULL;i++)
-        if (chip_info_table[i].chip_id==chip_id)
-            break;
-    return chip_info_table[i].name;
+static char* get_chip_name(int chip_id)
+{
+	int i;
+	for (i = 0; chip_info_table[i].name != NULL; i++)
+		if (chip_info_table[i].chip_id == chip_id)
+			break;
+	return chip_info_table[i].name;
 }
 
 static void __devexit vt6655_remove(struct pci_dev *pcid)
 {
-    PSDevice pDevice=pci_get_drvdata(pcid);
+	PSDevice pDevice = pci_get_drvdata(pcid);
 
-    if (pDevice==NULL)
-        return;
-    device_free_info(pDevice);
+	if (pDevice == NULL)
+		return;
+	device_free_info(pDevice);
 
 }
 
@@ -397,31 +398,29 @@ device_set_bool_opt(unsigned int *opt, int val,bool def,u32 flag, char* name,cha
     }
 }
 */
-static void
-device_get_options(PSDevice pDevice, int index, char* devname) {
-
-    POPTIONS pOpts = &(pDevice->sOpts);
-  pOpts->nRxDescs0=RX_DESC_DEF0;
-  pOpts->nRxDescs1=RX_DESC_DEF1;
-  pOpts->nTxDescs[0]=TX_DESC_DEF0;
-  pOpts->nTxDescs[1]=TX_DESC_DEF1;
-pOpts->flags|=DEVICE_FLAGS_IP_ALIGN;
-  pOpts->int_works=INT_WORKS_DEF;
-  pOpts->rts_thresh=RTS_THRESH_DEF;
-  pOpts->frag_thresh=FRAG_THRESH_DEF;
-  pOpts->data_rate=DATA_RATE_DEF;
-  pOpts->channel_num=CHANNEL_DEF;
-
-pOpts->flags|=DEVICE_FLAGS_PREAMBLE_TYPE;
-pOpts->flags|=DEVICE_FLAGS_OP_MODE;
-//pOpts->flags|=DEVICE_FLAGS_PS_MODE;
-  pOpts->short_retry=SHORT_RETRY_DEF;
-  pOpts->long_retry=LONG_RETRY_DEF;
-  pOpts->bbp_type=BBP_TYPE_DEF;
-pOpts->flags|=DEVICE_FLAGS_80211h_MODE;
-pOpts->flags|=DEVICE_FLAGS_DiversityANT;
-
-
+static void device_get_options(PSDevice pDevice, int index, char* devname)
+{
+	POPTIONS pOpts = &(pDevice->sOpts);
+
+	pOpts->nRxDescs0 = RX_DESC_DEF0;
+	pOpts->nRxDescs1 = RX_DESC_DEF1;
+	pOpts->nTxDescs[0] = TX_DESC_DEF0;
+	pOpts->nTxDescs[1] = TX_DESC_DEF1;
+	pOpts->flags |= DEVICE_FLAGS_IP_ALIGN;
+	pOpts->int_works = INT_WORKS_DEF;
+	pOpts->rts_thresh = RTS_THRESH_DEF;
+	pOpts->frag_thresh = FRAG_THRESH_DEF;
+	pOpts->data_rate = DATA_RATE_DEF;
+	pOpts->channel_num = CHANNEL_DEF;
+
+	pOpts->flags |= DEVICE_FLAGS_PREAMBLE_TYPE;
+	pOpts->flags |= DEVICE_FLAGS_OP_MODE;
+	//pOpts->flags|=DEVICE_FLAGS_PS_MODE;
+	pOpts->short_retry = SHORT_RETRY_DEF;
+	pOpts->long_retry = LONG_RETRY_DEF;
+	pOpts->bbp_type = BBP_TYPE_DEF;
+	pOpts->flags |= DEVICE_FLAGS_80211h_MODE;
+	pOpts->flags |= DEVICE_FLAGS_DiversityANT;
 }
 
 static void
@@ -518,7 +517,7 @@ static void s_vCompleteCurrentMeasure (PSDevice pDevice, unsigned char byResult)
 
 
 //
-// Initialiation of MAC & BBP registers
+// Initialisation of MAC & BBP registers
 //
 
 static void device_init_registers(PSDevice pDevice, DEVICE_INIT_TYPE InitType)
@@ -894,18 +893,15 @@ static bool device_release_WPADEV(PSDevice pDevice)
     return true;
 }
 
-
 static const struct net_device_ops device_netdev_ops = {
-    .ndo_open               = device_open,
-    .ndo_stop               = device_close,
-    .ndo_do_ioctl           = device_ioctl,
-    .ndo_get_stats          = device_get_stats,
-    .ndo_start_xmit         = device_xmit,
-    .ndo_set_rx_mode	    = device_set_multi,
+	.ndo_open               = device_open,
+	.ndo_stop               = device_close,
+	.ndo_do_ioctl           = device_ioctl,
+	.ndo_get_stats          = device_get_stats,
+	.ndo_start_xmit         = device_xmit,
+	.ndo_set_rx_mode	= device_set_multi,
 };
 
-
-
 static int __devinit
 vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
 {
@@ -926,7 +922,7 @@ vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
 
     if (dev == NULL) {
         printk(KERN_ERR DEVICE_NAME ": allocate net device failed \n");
-        return -ENODEV;
+        return -ENOMEM;
     }
 
     // Chain it all together
@@ -939,9 +935,7 @@ vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
         bFirst=false;
     }
 
-    if (!vt6655_init_info(pcid, &pDevice, pChip_info)) {
-        return -ENOMEM;
-    }
+    vt6655_init_info(pcid, &pDevice, pChip_info);
     pDevice->dev = dev;
     pDevice->next_module = root_device_dev;
     root_device_dev = dev;
@@ -1064,7 +1058,7 @@ vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
     //Mask out the options cannot be set to the chip
     pDevice->sOpts.flags &= pChip_info->flags;
 
-    //Enable the chip specified capbilities
+    //Enable the chip specified capabilities
     pDevice->flags = pDevice->sOpts.flags | (pChip_info->flags & 0xFF000000UL);
     pDevice->tx_80211 = device_dma0_tx_80211;
     pDevice->sMgmtObj.pAdapter = (void *)pDevice;
@@ -1105,7 +1099,7 @@ static void device_print_info(PSDevice pDevice)
 
 }
 
-static bool __devinit vt6655_init_info(struct pci_dev* pcid, PSDevice* ppDevice,
+static void __devinit vt6655_init_info(struct pci_dev* pcid, PSDevice* ppDevice,
     PCHIP_INFO pChip_info) {
 
     PSDevice p;
@@ -1129,8 +1123,6 @@ static bool __devinit vt6655_init_info(struct pci_dev* pcid, PSDevice* ppDevice,
     (*ppDevice)->multicast_limit =32;
 
     spin_lock_init(&((*ppDevice)->lock));
-
-    return true;
 }
 
 static bool device_get_pci_info(PSDevice pDevice, struct pci_dev* pcid) {
@@ -1678,7 +1670,7 @@ static int device_tx_srv(PSDevice pDevice, unsigned int uIdx) {
                 uFrameSize = pTD->pTDInfo->dwReqCount - uFIFOHeaderSize;
                 pTxBufHead = (PSTxBufHead) (pTD->pTDInfo->buf);
                 // Update the statistics based on the Transmit status
-                // now, we DO'NT check TSR0_CDH
+                // now, we DONT check TSR0_CDH
 
                 STAvUpdateTDStatCounter(&pDevice->scStatistic,
                         byTsr0, byTsr1,
@@ -2660,7 +2652,7 @@ static  irqreturn_t  device_intr(int irq,  void *dev_instance) {
         (pDevice->byLocalID != REV_ID_VT3253_B0) &&
         (pDevice->bBSSIDFilter == true)) {
         // update RSSI
-        //BBbReadEmbeded(pDevice->PortOffset, 0x3E, &byRSSI);
+        //BBbReadEmbedded(pDevice->PortOffset, 0x3E, &byRSSI);
         //pDevice->uCurrRSSI = byRSSI;
     }
     */
diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c
index e8a71ba4b92..373e9e4fc87 100644
--- a/drivers/staging/vt6655/dpc.c
+++ b/drivers/staging/vt6655/dpc.c
@@ -718,7 +718,7 @@ device_receive_frame (
     if ((*pbyRSSI != 0) &&
         (pMgmt->pCurrBSS!=NULL)) {
         RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
-        // Moniter if RSSI is too strong.
+        // Monitor if RSSI is too strong.
         pMgmt->pCurrBSS->byRSSIStatCnt++;
         pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
         pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index 6ac6f452b26..67b1b88b1b8 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -495,9 +495,7 @@ static int hostap_set_encryption(PSDevice pDevice,
 		return -EINVAL;
 	}
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= MAX_GROUP_KEY)
 			return -EINVAL;
         iNodeIndex = 0;
@@ -716,9 +714,7 @@ static int hostap_get_encryption(PSDevice pDevice,
 
 	param->u.crypt.err = 0;
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
         iNodeIndex = 0;
 	} else {
 	    if (BSSDBbIsSTAInNodeDB(pMgmt, param->sta_addr, &iNodeIndex) == false) {
diff --git a/drivers/staging/vt6655/ioctl.c b/drivers/staging/vt6655/ioctl.c
index ef197efab04..afed6e33dfc 100644
--- a/drivers/staging/vt6655/ioctl.c
+++ b/drivers/staging/vt6655/ioctl.c
@@ -111,7 +111,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 		break;
 
 	case WLAN_CMD_ZONETYPE_SET:
-		/* mike add :cann't support. */
+		/* mike add :can't support. */
 		result = -EOPNOTSUPP;
 		break;
 
@@ -539,11 +539,8 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			pMgmt->abyIBSSSuppRates[3] |= BIT7;
 		}
 
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Support Rate= %x %x %x %x\n",
-			pMgmt->abyIBSSSuppRates[2],
-			pMgmt->abyIBSSSuppRates[3],
-			pMgmt->abyIBSSSuppRates[4],
-			pMgmt->abyIBSSSuppRates[5]);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Support Rate= %*ph\n",
+				4, pMgmt->abyIBSSSuppRates + 2);
 
 		netif_stop_queue(pDevice->dev);
 		spin_lock_irq(&pDevice->lock);
diff --git a/drivers/staging/vt6655/iwctl.c b/drivers/staging/vt6655/iwctl.c
index 77aad7f5ae7..5cdda8dab85 100644
--- a/drivers/staging/vt6655/iwctl.c
+++ b/drivers/staging/vt6655/iwctl.c
@@ -358,7 +358,7 @@ int iwctl_giwscan(struct net_device *dev,
 
 
 /*
- * Wireless Handler : set frequence or channel
+ * Wireless Handler : set frequency or channel
  */
 
 int iwctl_siwfreq(struct net_device *dev,
@@ -404,7 +404,7 @@ int iwctl_siwfreq(struct net_device *dev,
 }
 
 /*
- * Wireless Handler : get frequence or channel
+ * Wireless Handler : get frequency or channel
  */
 
 int iwctl_giwfreq(struct net_device *dev,
@@ -1346,7 +1346,7 @@ if((wrq->flags & IW_ENCODE_DISABLED)==0){
 
 		}else if(index>0){
 	//when the length is 0 the request only changes the default transmit key index
-	//check the new key has a non zero lenget
+	//check the new key if it has a non zero length
 	if(pDevice->bEncryptionEnable==false)
 	{
 		rc = -EINVAL;
diff --git a/drivers/staging/vt6655/key.c b/drivers/staging/vt6655/key.c
index 774b0d4a7e0..194fedc715f 100644
--- a/drivers/staging/vt6655/key.c
+++ b/drivers/staging/vt6655/key.c
@@ -372,7 +372,7 @@ bool KeybRemoveKey (
     int  i;
 
     if (is_broadcast_ether_addr(pbyBSSID)) {
-        // dealte all key
+        // delete all keys
         if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
             for (i=0;i<MAX_KEY_TABLE;i++) {
                 pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
diff --git a/drivers/staging/vt6655/mac.c b/drivers/staging/vt6655/mac.c
index f8d1651341f..30c26157941 100644
--- a/drivers/staging/vt6655/mac.c
+++ b/drivers/staging/vt6655/mac.c
@@ -56,9 +56,9 @@
  *      MACbSafeStop - Stop MAC function
  *      MACbShutdown - Shut down MAC
  *      MACvInitialize - Initialize MAC
- *      MACvSetCurrRxDescAddr - Set Rx Descriptos Address
- *      MACvSetCurrTx0DescAddr - Set Tx0 Descriptos Address
- *      MACvSetCurrTx1DescAddr - Set Tx1 Descriptos Address
+ *      MACvSetCurrRxDescAddr - Set Rx Descriptors Address
+ *      MACvSetCurrTx0DescAddr - Set Tx0 Descriptors Address
+ *      MACvSetCurrTx1DescAddr - Set Tx1 Descriptors Address
  *      MACvTimer0MicroSDelay - Micro Second Delay Loop by MAC
  *
  * Revision History:
@@ -1498,7 +1498,7 @@ int     ii;
 
     wOffset += (uKeyIdx * 4);
     for (ii=0;ii<4;ii++) {
-        // alway push 128 bits
+        // always push 128 bits
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"3.(%d) wOffset: %d, Data: %lX\n", ii, wOffset+ii, *pdwKey);
         VNSvOutPortW(dwIoBase + MAC_REG_MISCFFNDEX, wOffset+ii);
         VNSvOutPortD(dwIoBase + MAC_REG_MISCFFDATA, *pdwKey++);
@@ -1567,7 +1567,7 @@ int     ii;
     wOffset++;
     wOffset++;
     wOffset += (uKeyIdx * 4);
-    // alway push 128 bits
+    // always push 128 bits
     for (ii=0; ii<3; ii++) {
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"(%d) wOffset: %d, Data: %lX\n", ii, wOffset+ii, *pdwKey);
         VNSvOutPortW(dwIoBase + MAC_REG_MISCFFNDEX, wOffset+ii);
@@ -1696,7 +1696,7 @@ int     ii;
 
     wOffset += (uKeyIdx * 4);
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"1. wOffset: %d, Data: %lX, idx:%d\n", wOffset, *pdwKey, uKeyIdx);
-    // alway push 128 bits
+    // always push 128 bits
     for (ii=0; ii<4; ii++) {
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"2.(%d) wOffset: %d, Data: %lX\n", ii, wOffset+ii, *pdwKey);
         VNSvOutPortW(dwIoBase + MAC_REG_MISCFFNDEX, wOffset+ii);
diff --git a/drivers/staging/vt6655/mac.h b/drivers/staging/vt6655/mac.h
index e3ccfee9026..adfb366f490 100644
--- a/drivers/staging/vt6655/mac.h
+++ b/drivers/staging/vt6655/mac.h
@@ -586,7 +586,7 @@
 #define PKT_TYPE_NONE           0x00    // turn off receiver
 #define PKT_TYPE_ALL_MULTICAST  0x80
 #define PKT_TYPE_PROMISCUOUS    0x40
-#define PKT_TYPE_DIRECTED       0x20    // obselete, directed address is always accepted
+#define PKT_TYPE_DIRECTED       0x20    // obsolete, directed address is always accepted
 #define PKT_TYPE_BROADCAST      0x10
 #define PKT_TYPE_MULTICAST      0x08
 #define PKT_TYPE_ERROR_WPA      0x04
diff --git a/drivers/staging/vt6655/mib.c b/drivers/staging/vt6655/mib.c
index 1b91a837095..63ae4adddf2 100644
--- a/drivers/staging/vt6655/mib.c
+++ b/drivers/staging/vt6655/mib.c
@@ -191,7 +191,7 @@ void STAvUpdateRDStatCounter (PSStatCounter pStatistic,
         pStatistic->ullRsrOK++;
 
         if (cbFrameLength >= ETH_ALEN) {
-            // update counters in case that successful transmit
+            // update counters in case of successful transmit
             if (byRSR & RSR_ADDRBROAD) {
                 pStatistic->ullRxBroadcastFrames++;
                 pStatistic->ullRxBroadcastBytes += (unsigned long long) cbFrameLength;
diff --git a/drivers/staging/vt6655/power.c b/drivers/staging/vt6655/power.c
index 4c0b02e8f0b..661d534304c 100644
--- a/drivers/staging/vt6655/power.c
+++ b/drivers/staging/vt6655/power.c
@@ -207,7 +207,7 @@ PSbConsiderPowerDown(
     if (pDevice->bCmdRunning)
         return false;
 
-    // Froce PSEN on
+    // Force PSEN on
     MACvRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PSEN);
 
     // check if all TD are empty,
diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c
index aa696650b86..aaa231aaf4e 100644
--- a/drivers/staging/vt6655/rf.c
+++ b/drivers/staging/vt6655/rf.c
@@ -26,7 +26,7 @@
  * Date: Feb. 19, 2004
  *
  * Functions:
- *      IFRFbWriteEmbeded      - Embeded write RF register via MAC
+ *      IFRFbWriteEmbedded      - Embedded write RF register via MAC
  *
  * Revision History:
  *
@@ -453,18 +453,18 @@ bool s_bAL7230Init (unsigned long dwIoBase)
     BBvPowerSaveModeOFF(dwIoBase); //RobertYu:20050106, have DC value for Calibration
 
     for (ii = 0; ii < CB_AL7230_INIT_SEQ; ii++)
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[ii]);
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[ii]);
 
     // PLL On
     MACvWordRegBitsOn(dwIoBase, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE3);
 
     //Calibration
     MACvTimer0MicroSDelay(dwIoBase, 150);//150us
-    bResult &= IFRFbWriteEmbeded(dwIoBase, (0x9ABA8F00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW)); //TXDCOC:active, RCK:diable
+    bResult &= IFRFbWriteEmbedded(dwIoBase, (0x9ABA8F00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW)); //TXDCOC:active, RCK:disable
     MACvTimer0MicroSDelay(dwIoBase, 30);//30us
-    bResult &= IFRFbWriteEmbeded(dwIoBase, (0x3ABA8F00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW)); //TXDCOC:diable, RCK:active
+    bResult &= IFRFbWriteEmbedded(dwIoBase, (0x3ABA8F00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW)); //TXDCOC:disable, RCK:active
     MACvTimer0MicroSDelay(dwIoBase, 30);//30us
-    bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[CB_AL7230_INIT_SEQ-1]); //TXDCOC:diable, RCK:diable
+    bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[CB_AL7230_INIT_SEQ-1]); //TXDCOC:disable, RCK:disable
 
     MACvWordRegBitsOn(dwIoBase, MAC_REG_SOFTPWRCTL, (SOFTPWRCTL_SWPE3    |
                                                      SOFTPWRCTL_SWPE2    |
@@ -490,9 +490,9 @@ bool s_bAL7230SelectChannel (unsigned long dwIoBase, unsigned char byChannel)
     // PLLON Off
     MACvWordRegBitsOff(dwIoBase, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE3);
 
-    bResult &= IFRFbWriteEmbeded (dwIoBase, dwAL7230ChannelTable0[byChannel-1]); //Reg0
-    bResult &= IFRFbWriteEmbeded (dwIoBase, dwAL7230ChannelTable1[byChannel-1]); //Reg1
-    bResult &= IFRFbWriteEmbeded (dwIoBase, dwAL7230ChannelTable2[byChannel-1]); //Reg4
+    bResult &= IFRFbWriteEmbedded (dwIoBase, dwAL7230ChannelTable0[byChannel-1]); //Reg0
+    bResult &= IFRFbWriteEmbedded (dwIoBase, dwAL7230ChannelTable1[byChannel-1]); //Reg1
+    bResult &= IFRFbWriteEmbedded (dwIoBase, dwAL7230ChannelTable2[byChannel-1]); //Reg4
 
     // PLLOn On
     MACvWordRegBitsOn(dwIoBase, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE3);
@@ -574,7 +574,7 @@ bool s_bAL7230SelectChannel (unsigned long dwIoBase, unsigned char byChannel)
 /*---------------------  Export Functions  --------------------------*/
 
 /*
- * Description: Write to IF/RF, by embeded programming
+ * Description: Write to IF/RF, by embedded programming
  *
  * Parameters:
  *  In:
@@ -586,7 +586,7 @@ bool s_bAL7230SelectChannel (unsigned long dwIoBase, unsigned char byChannel)
  * Return Value: true if succeeded; false if failed.
  *
  */
-bool IFRFbWriteEmbeded (unsigned long dwIoBase, unsigned long dwData)
+bool IFRFbWriteEmbedded (unsigned long dwIoBase, unsigned long dwData)
 {
     unsigned short ww;
     unsigned long dwValue;
@@ -669,11 +669,11 @@ bool RFbAL2230Init (unsigned long dwIoBase)
 
     //patch abnormal AL2230 frequency output
 //2008-8-21 chester <add>
-    IFRFbWriteEmbeded(dwIoBase, (0x07168700+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW));
+    IFRFbWriteEmbedded(dwIoBase, (0x07168700+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW));
 
 
     for (ii = 0; ii < CB_AL2230_INIT_SEQ; ii++)
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL2230InitTable[ii]);
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL2230InitTable[ii]);
 //2008-8-21 chester <add>
 MACvTimer0MicroSDelay(dwIoBase, 30); //delay 30 us
 
@@ -681,11 +681,11 @@ MACvTimer0MicroSDelay(dwIoBase, 30); //delay 30 us
     MACvWordRegBitsOn(dwIoBase, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE3);
 
     MACvTimer0MicroSDelay(dwIoBase, 150);//150us
-    bResult &= IFRFbWriteEmbeded(dwIoBase, (0x00d80f00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW));
+    bResult &= IFRFbWriteEmbedded(dwIoBase, (0x00d80f00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW));
     MACvTimer0MicroSDelay(dwIoBase, 30);//30us
-    bResult &= IFRFbWriteEmbeded(dwIoBase, (0x00780f00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW));
+    bResult &= IFRFbWriteEmbedded(dwIoBase, (0x00780f00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW));
     MACvTimer0MicroSDelay(dwIoBase, 30);//30us
-    bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL2230InitTable[CB_AL2230_INIT_SEQ-1]);
+    bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL2230InitTable[CB_AL2230_INIT_SEQ-1]);
 
     MACvWordRegBitsOn(dwIoBase, MAC_REG_SOFTPWRCTL, (SOFTPWRCTL_SWPE3    |
                                                      SOFTPWRCTL_SWPE2    |
@@ -704,8 +704,8 @@ bool RFbAL2230SelectChannel (unsigned long dwIoBase, unsigned char byChannel)
 
     bResult = true;
 
-    bResult &= IFRFbWriteEmbeded (dwIoBase, dwAL2230ChannelTable0[byChannel-1]);
-    bResult &= IFRFbWriteEmbeded (dwIoBase, dwAL2230ChannelTable1[byChannel-1]);
+    bResult &= IFRFbWriteEmbedded (dwIoBase, dwAL2230ChannelTable0[byChannel-1]);
+    bResult &= IFRFbWriteEmbedded (dwIoBase, dwAL2230ChannelTable1[byChannel-1]);
 
     // Set Channel[7] = 0 to tell H/W channel is changing now.
     VNSvOutPortB(dwIoBase + MAC_REG_CHANNEL, (byChannel & 0x7F));
@@ -817,7 +817,7 @@ bool bResult = true;
 
     switch (pDevice->byRFType) {
         case RF_AIROHA7230 :
-            bResult = IFRFbWriteEmbeded (pDevice->PortOffset, 0x1ABAEF00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW);
+            bResult = IFRFbWriteEmbedded (pDevice->PortOffset, 0x1ABAEF00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW);
             break;
         default :
             bResult = true;
@@ -1072,23 +1072,23 @@ unsigned long dwMax7230Pwr = 0;
     switch (pDevice->byRFType) {
 
         case RF_AIROHA :
-            bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, dwAL2230PowerTable[byPwr]);
+            bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, dwAL2230PowerTable[byPwr]);
             if (uRATE <= RATE_11M) {
-                bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, 0x0001B400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, 0x0001B400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             } else {
-                bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             }
             break;
 
 
         case RF_AL2230S :
-            bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, dwAL2230PowerTable[byPwr]);
+            bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, dwAL2230PowerTable[byPwr]);
             if (uRATE <= RATE_11M) {
-                bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, 0x040C1400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
-                bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, 0x00299B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, 0x040C1400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, 0x00299B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             }else {
-                bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
-                bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, 0x00099B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, 0x00099B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             }
 
             break;
@@ -1098,7 +1098,7 @@ unsigned long dwMax7230Pwr = 0;
             dwMax7230Pwr = 0x080C0B00 | ( (byPwr) << 12 ) |
                            (BY_AL7230_REG_LEN << 3 )  | IFREGCTL_REGW;
 
-            bResult &= IFRFbWriteEmbeded(pDevice->PortOffset, dwMax7230Pwr);
+            bResult &= IFRFbWriteEmbedded(pDevice->PortOffset, dwMax7230Pwr);
             break;
 
 
@@ -1166,24 +1166,24 @@ bool RFbAL7230SelectChannelPostProcess (unsigned long dwIoBase, unsigned char by
     if( (byOldChannel <= CB_MAX_CHANNEL_24G) && (byNewChannel > CB_MAX_CHANNEL_24G) )
     {
         // Change from 2.4G to 5G
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[2]); //Reg2
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[3]); //Reg3
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[5]); //Reg5
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[7]); //Reg7
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[10]);//Reg10
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[12]);//Reg12
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTableAMode[15]);//Reg15
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[2]); //Reg2
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[3]); //Reg3
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[5]); //Reg5
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[7]); //Reg7
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[10]);//Reg10
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[12]);//Reg12
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTableAMode[15]);//Reg15
     }
     else if( (byOldChannel > CB_MAX_CHANNEL_24G) && (byNewChannel <= CB_MAX_CHANNEL_24G) )
     {
         // change from 5G to 2.4G
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[2]); //Reg2
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[3]); //Reg3
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[5]); //Reg5
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[7]); //Reg7
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[10]);//Reg10
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[12]);//Reg12
-        bResult &= IFRFbWriteEmbeded(dwIoBase, dwAL7230InitTable[15]);//Reg15
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[2]); //Reg2
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[3]); //Reg3
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[5]); //Reg5
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[7]); //Reg7
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[10]);//Reg10
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[12]);//Reg12
+        bResult &= IFRFbWriteEmbedded(dwIoBase, dwAL7230InitTable[15]);//Reg15
     }
 
     return bResult;
diff --git a/drivers/staging/vt6655/rf.h b/drivers/staging/vt6655/rf.h
index 73f09693ee7..1da0fdeb2e1 100644
--- a/drivers/staging/vt6655/rf.h
+++ b/drivers/staging/vt6655/rf.h
@@ -75,7 +75,7 @@
 
 /*---------------------  Export Functions  --------------------------*/
 
-bool IFRFbWriteEmbeded(unsigned long dwIoBase, unsigned long dwData);
+bool IFRFbWriteEmbedded(unsigned long dwIoBase, unsigned long dwData);
 bool RFbSelectChannel(unsigned long dwIoBase, unsigned char byRFType, unsigned char byChannel);
 bool RFbInit (
     PSDevice  pDevice
diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c
index 6935b37d544..4972e57845c 100644
--- a/drivers/staging/vt6655/rxtx.c
+++ b/drivers/staging/vt6655/rxtx.c
@@ -27,7 +27,7 @@
  * Functions:
  *      s_vGenerateTxParameter - Generate tx dma required parameter.
  *      vGenerateMACHeader - Translate 802.3 to 802.11 header
- *      cbGetFragCount - Caculate fragment number count
+ *      cbGetFragCount - Calculate fragment number count
  *      csBeacon_xmit - beacon tx function
  *      csMgmt_xmit - management tx function
  *      s_cbFillTxBufHead - fulfill tx dma buffer header
@@ -733,11 +733,11 @@ s_uFillDataHead (
         if (byFBOption == AUTO_FB_NONE) {
             PSTxDataHead_g pBuf = (PSTxDataHead_g)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_a), (unsigned char *)&(pBuf->bySignalField_a)
             );
             pBuf->wTransmitLength_a = cpu_to_le16(wLen);
-            BBvCaculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_b), (unsigned char *)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
@@ -759,11 +759,11 @@ s_uFillDataHead (
             // Auto Fallback
             PSTxDataHead_g_FB pBuf = (PSTxDataHead_g_FB)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_a), (unsigned char *)&(pBuf->bySignalField_a)
             );
             pBuf->wTransmitLength_a = cpu_to_le16(wLen);
-            BBvCaculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_b), (unsigned char *)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
@@ -788,7 +788,7 @@ s_uFillDataHead (
             // Auto Fallback
             PSTxDataHead_a_FB pBuf = (PSTxDataHead_a_FB)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField), (unsigned char *)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -805,7 +805,7 @@ s_uFillDataHead (
         } else {
             PSTxDataHead_ab pBuf = (PSTxDataHead_ab)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField), (unsigned char *)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -823,7 +823,7 @@ s_uFillDataHead (
     else {
             PSTxDataHead_ab pBuf = (PSTxDataHead_ab)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField), (unsigned char *)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -871,11 +871,11 @@ s_vFillRTSHead (
         if (byFBOption == AUTO_FB_NONE) {
             PSRTS_g pBuf = (PSRTS_g)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_b), (unsigned char *)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_a), (unsigned char *)&(pBuf->bySignalField_a)
             );
             pBuf->wTransmitLength_a = cpu_to_le16(wLen);
@@ -904,11 +904,11 @@ s_vFillRTSHead (
         else {
            PSRTS_g_FB pBuf = (PSRTS_g_FB)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_b), (unsigned char *)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_a), (unsigned char *)&(pBuf->bySignalField_a)
             );
             pBuf->wTransmitLength_a = cpu_to_le16(wLen);
@@ -946,7 +946,7 @@ s_vFillRTSHead (
         if (byFBOption == AUTO_FB_NONE) {
             PSRTS_ab pBuf = (PSRTS_ab)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField), (unsigned char *)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -975,7 +975,7 @@ s_vFillRTSHead (
         else {
             PSRTS_a_FB pBuf = (PSRTS_a_FB)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField), (unsigned char *)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -1005,7 +1005,7 @@ s_vFillRTSHead (
     else if (byPktType == PK_TYPE_11B) {
         PSRTS_ab pBuf = (PSRTS_ab)pvRTS;
         //Get SignalField,ServiceField,Length
-        BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+        BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
             (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField), (unsigned char *)&(pBuf->bySignalField)
         );
         pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -1065,7 +1065,7 @@ s_vFillCTSHead (
             // Auto Fall back
             PSCTS_FB pBuf = (PSCTS_FB)pvCTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_b), (unsigned char *)&(pBuf->bySignalField_b)
             );
 
@@ -1092,7 +1092,7 @@ s_vFillCTSHead (
         } else { //if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA)
             PSCTS pBuf = (PSCTS)pvCTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (unsigned short *)&(wLen), (unsigned char *)&(pBuf->byServiceField_b), (unsigned char *)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
@@ -2568,7 +2568,7 @@ CMD_STATUS csMgmt_xmit(PSDevice pDevice, PSTxMgmtPacket pPacket) {
     if (bIsPSPOLL) {
         // The MAC will automatically replace the Duration-field of MAC header by Duration-field
         // of  FIFO control header.
-        // This will cause AID-field of PS-POLL packet be incorrect (Because PS-POLL's AID field is
+        // This will cause AID-field of PS-POLL packet to be incorrect (Because PS-POLL's AID field is
         // in the same place of other packet's Duration-field).
         // And it will cause Cisco-AP to issue Disassociation-packet
         if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
@@ -2664,7 +2664,7 @@ CMD_STATUS csBeacon_xmit(PSDevice pDevice, PSTxMgmtPacket pPacket) {
                                                           wCurrentRate, false, 0, 0, 1, AUTO_FB_NONE));
     }
 
-    BBvCaculateParameter(pDevice, cbFrameSize, wCurrentRate, byPktType,
+    BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate, byPktType,
         (unsigned short *)&(wLen), (unsigned char *)&(pTxDataHead->byServiceField), (unsigned char *)&(pTxDataHead->bySignalField)
     );
     pTxDataHead->wTransmitLength = cpu_to_le16(wLen);
@@ -2860,7 +2860,7 @@ vDMA0_tx_80211(PSDevice  pDevice, struct sk_buff *skb, unsigned char *pbMPDU, un
 
     // SetPower will cause error power TX state for OFDM Date packet in TX buffer.
     // 2004.11.11 Kyle -- Using OFDM power to tx MngPkt will decrease the connection capability.
-    //                    And cmd timer will wait data pkt TX finish before scanning so it's OK
+    //                    And cmd timer will wait data pkt TX to finish before scanning so it's OK
     //                    to set power here.
     if (pDevice->pMgmt->eScanState != WMAC_NO_SCANNING) {
         RFbSetPower(pDevice, wCurrentRate, pDevice->byCurrentCh);
@@ -2957,7 +2957,7 @@ vDMA0_tx_80211(PSDevice  pDevice, struct sk_buff *skb, unsigned char *pbMPDU, un
     pTxBufHead->wFragCtl |= cpu_to_le16((unsigned short)cbMacHdLen << 10);
 
     // Notes:
-    // Although spec says MMPDU can be fragmented; In most case,
+    // Although spec says MMPDU can be fragmented; In most casses,
     // no one will send a MMPDU under fragmentation. With RTS may occur.
     pDevice->bAES = false;  //Set FRAGCTL_WEPTYP
 
diff --git a/drivers/staging/vt6655/tcrc.c b/drivers/staging/vt6655/tcrc.c
index f9c28bf8a6a..1313c4cd086 100644
--- a/drivers/staging/vt6655/tcrc.c
+++ b/drivers/staging/vt6655/tcrc.c
@@ -18,7 +18,7 @@
  *
  * File: tcrc.c
  *
- * Purpose: Implement functions to caculate CRC
+ * Purpose: Implement functions to calculate CRC
  *
  * Author: Tevin Chen
  *
diff --git a/drivers/staging/vt6655/tcrc.h b/drivers/staging/vt6655/tcrc.h
index d0449855beb..a2044212d1c 100644
--- a/drivers/staging/vt6655/tcrc.h
+++ b/drivers/staging/vt6655/tcrc.h
@@ -18,7 +18,7 @@
  *
  * File: tcrc.h
  *
- * Purpose: Implement functions to caculate CRC
+ * Purpose: Implement functions to calculate CRC
  *
  * Author: Tevin Chen
  *
diff --git a/drivers/staging/vt6655/tether.c b/drivers/staging/vt6655/tether.c
index 1cf8508e407..28554bf7554 100644
--- a/drivers/staging/vt6655/tether.c
+++ b/drivers/staging/vt6655/tether.c
@@ -25,7 +25,7 @@
  * Date: May 21, 1996
  *
  * Functions:
- *      ETHbyGetHashIndexByCrc32 - Caculate multicast hash value by CRC32
+ *      ETHbyGetHashIndexByCrc32 - Calculate multicast hash value by CRC32
  *      ETHbIsBufferCrc32Ok - Check CRC value of the buffer if Ok or not
  *
  * Revision History:
@@ -50,7 +50,7 @@
 
 
 /*
- * Description: Caculate multicast hash value by CRC32
+ * Description: Calculate multicast hash value by CRC32
  *
  * Parameters:
  *  In:
diff --git a/drivers/staging/vt6655/tkip.c b/drivers/staging/vt6655/tkip.c
index ed3eac17ae8..f141ba1cbb9 100644
--- a/drivers/staging/vt6655/tkip.c
+++ b/drivers/staging/vt6655/tkip.c
@@ -170,7 +170,7 @@ unsigned int rotr1(unsigned int a)
 
 
 /*
- * Description: Caculate RC4Key fom TK, TA, and TSC
+ * Description: Calculate RC4Key fom TK, TA, and TSC
  *
  * Parameters:
  *  In:
diff --git a/drivers/staging/vt6655/vntwifi.c b/drivers/staging/vt6655/vntwifi.c
index d645ecd8941..62c44b87d31 100644
--- a/drivers/staging/vt6655/vntwifi.c
+++ b/drivers/staging/vt6655/vntwifi.c
@@ -60,7 +60,7 @@
  * Parameters:
  *  In:
  *      pMgmtHandle - pointer to management object
- *      eOPMode     - Opreation Mode
+ *      eOPMode     - Operation Mode
  *  Out:
  *      none
  *
diff --git a/drivers/staging/vt6655/wcmd.c b/drivers/staging/vt6655/wcmd.c
index 7b5b99c8cf1..94bd1fc42c9 100644
--- a/drivers/staging/vt6655/wcmd.c
+++ b/drivers/staging/vt6655/wcmd.c
@@ -121,7 +121,7 @@ vAdHocBeaconStop(PSDevice  pDevice)
 
     /*
      * temporarily stop Beacon packet for AdHoc Server
-     * if all of the following coditions are met:
+     * if all of the following conditions are met:
      *  (1) STA is in AdHoc mode
      *  (2) VT3253 is programmed as automatic Beacon Transmitting
      *  (3) One of the following conditions is met
@@ -812,8 +812,8 @@ printk("chester-abyDesireSSID=%s\n",((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->abySS
                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "sta ps tx fail \n");
                         }
                         pMgmt->sNodeDBTable[ii].wEnQueueCnt--;
-                        // check if sta ps enable, wait next pspoll
-                        // if sta ps disable, send all pending buffers.
+                        // check if sta ps enabled, and wait next pspoll.
+                        // if sta ps disable, then send all pending buffers.
                         if (pMgmt->sNodeDBTable[ii].bPSEnable)
                             break;
                     }
diff --git a/drivers/staging/vt6655/wmgr.c b/drivers/staging/vt6655/wmgr.c
index c46d51908ac..b6f99ecbbeb 100644
--- a/drivers/staging/vt6655/wmgr.c
+++ b/drivers/staging/vt6655/wmgr.c
@@ -26,8 +26,8 @@
  * Date: May 8, 2002
  *
  * Functions:
- *      nsMgrObjectInitial - Initialize Management Objet data structure
- *      vMgrObjectReset - Reset Management Objet data structure
+ *      nsMgrObjectInitial - Initialize Management Object data structure
+ *      vMgrObjectReset - Reset Management Object data structure
  *      vMgrAssocBeginSta - Start associate function
  *      vMgrReAssocBeginSta - Start reassociate function
  *      vMgrDisassocBeginSta - Start disassociate function
@@ -54,7 +54,7 @@
  *      bMgrPrepareBeaconToSend - Prepare Beacon frame
  *      s_vMgrLogStatus - Log 802.11 Status
  *      vMgrRxManagePacket - Rcv management frame dispatch function
- *      s_vMgrFormatTIM- Assember TIM field of beacon
+ *      s_vMgrFormatTIM- Assembler TIM field of beacon
  *      vMgrTimerInit- Initial 1-sec and command call back funtions
  *
  * Revision History:
@@ -425,7 +425,7 @@ vMgrTimerInit(
 /*+
  *
  * Routine Description:
- *    Reset the management object  structure.
+ *    Reset the management object structure.
  *
  * Return Value:
  *    None.
@@ -1287,14 +1287,14 @@ s_vMgrRxAuthentication(
     vMgrDecodeAuthen(&sFrame);
     switch (cpu_to_le16((*(sFrame.pwAuthSequence )))){
         case 1:
-            //AP funciton
+            //AP function
             s_vMgrRxAuthenSequence_1(pDevice,pMgmt, &sFrame);
             break;
         case 2:
             s_vMgrRxAuthenSequence_2(pDevice, pMgmt, &sFrame);
             break;
         case 3:
-            //AP funciton
+            //AP function
             s_vMgrRxAuthenSequence_3(pDevice, pMgmt, &sFrame);
             break;
         case 4:
@@ -1923,7 +1923,7 @@ s_vMgrRxBeacon(
             byIEChannel = sFrame.pDSParms->byCurrChannel;
         }
         if (byCurrChannel != byIEChannel) {
-            // adjust channel info. bcs we rcv adjcent channel pakckets
+            // adjust channel info. bcs we rcv adjacent channel packets
             bChannelHit = false;
             byCurrChannel = byIEChannel;
         }
@@ -2081,7 +2081,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==true)
                 }
             }
             //
-            // Basic Rate Set may change dynamiclly
+            // Basic Rate Set may change dynamically
             //
             if (pBSSList->eNetworkTypeInUse == PHY_TYPE_11B) {
                 uRateLen = WLAN_RATES_MAXLEN_11B;
@@ -2134,7 +2134,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==true)
     }
 
 //    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Beacon 2 \n");
-    // check if CF field exisit
+    // check if CF field exists
     if (WLAN_GET_CAP_INFO_ESS(*sFrame.pwCapInfo)) {
         if (sFrame.pCFParms->wCFPDurRemaining > 0) {
             // TODO: deal with CFP period to set NAV
@@ -2244,7 +2244,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==true)
 		    if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
 		 	    pMgmt->sNodeDBTable[0].uInActiveCount = 0;
 
-            // adhoc mode:TSF updated only when beacon larger then local TSF
+            // adhoc mode:TSF updated only when beacon larger than local TSF
             if (bTSFLargeDiff && bTSFOffsetPostive &&
                 (pMgmt->eCurrState == WMAC_STATE_JOINTED))
                 bUpdateTSF = true;
@@ -2252,7 +2252,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==true)
             // During dpc, already in spinlocked.
             if (BSSDBbIsSTAInNodeDB(pMgmt, sFrame.pHdr->sA3.abyAddr2, &uNodeIndex)) {
 
-                // Update the STA, (Techically the Beacons of all the IBSS nodes
+                // Update the STA, (Technically the Beacons of all the IBSS nodes
 		        // should be identical, but that's not happening in practice.
                 pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates,
                                                         (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
@@ -2305,7 +2305,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==true)
 */
             }
 
-            // if other stations jointed, indicate connect to upper layer..
+            // if other stations joined, indicate connection to upper layer..
             if (pMgmt->eCurrState == WMAC_STATE_STARTED) {
                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Current IBSS State: [Started]........to: [Jointed] \n");
                 pMgmt->eCurrState = WMAC_STATE_JOINTED;
@@ -3081,8 +3081,8 @@ s_vMgrSynchBSS (
                //   }
            // }
   //   if( uSameBssidNum>=2) {	 //we only check AP in hidden sssid  mode
-        if ((pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||           //networkmanager 0.7.0 does not give the pairwise-key selsection,
-             (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {         // so we need re-selsect it according to real pairwise-key info.
+        if ((pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK) ||           //networkmanager 0.7.0 does not give the pairwise-key selection,
+             (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {         // so we need re-select it according to real pairwise-key info.
                if(pCurr->bWPAValid == true)  {   //WPA-PSK
                           pMgmt->eAuthenMode = WMAC_AUTH_WPAPSK;
 		    if(pCurr->abyPKType[0] == WPA_TKIP) {
@@ -3193,7 +3193,7 @@ s_vMgrFormatTIM(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -3310,7 +3310,7 @@ s_MgrMakeBeacon(
             *((unsigned short *)(sFrame.pBuf + sFrame.len + sFrame.pRSNWPA->len))=0;
             sFrame.pRSNWPA->len +=2;
 
-            // RSN Capabilites
+            // RSN Capabilities
             *((unsigned short *)(sFrame.pBuf + sFrame.len + sFrame.pRSNWPA->len))=0;
             sFrame.pRSNWPA->len +=2;
             sFrame.len += sFrame.pRSNWPA->len + WLAN_IEHDR_LEN;
@@ -3420,7 +3420,7 @@ s_MgrMakeBeacon(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -3611,7 +3611,7 @@ s_MgrMakeProbeResponse(
  *
  *
  * Return Value:
- *    A ptr to frame or NULL on allocation failue
+ *    A ptr to frame or NULL on allocation failure
  *
 -*/
 
@@ -3652,7 +3652,7 @@ s_MgrMakeAssocRequest(
     memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
     memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN);
 
-    // Set the capibility and listen interval
+    // Set the capability and listen interval
     *(sFrame.pwCapInfo) = cpu_to_le16(wCurrCapInfo);
     *(sFrame.pwListenInterval) = cpu_to_le16(wListenInterval);
 
@@ -3762,7 +3762,7 @@ s_MgrMakeAssocRequest(
 
         sFrame.pRSNWPA->len +=6;
 
-        // RSN Capabilites
+        // RSN Capabilities
 
         *pbyRSN++=0x00;
         *pbyRSN++=0x00;
@@ -3831,7 +3831,7 @@ s_MgrMakeAssocRequest(
         }
         sFrame.pRSN->len +=6;
 
-        // RSN Capabilites
+        // RSN Capabilities
         if (pMgmt->pCurrBSS->sRSNCapObj.bRSNCapExist == true) {
             memcpy(&sFrame.pRSN->abyRSN[16], &pMgmt->pCurrBSS->sRSNCapObj.wRSNCap, 2);
         } else {
@@ -3886,7 +3886,7 @@ s_MgrMakeAssocRequest(
  *
  *
  * Return Value:
- *    A ptr to frame or NULL on allocation failue
+ *    A ptr to frame or NULL on allocation failure
  *
 -*/
 
@@ -3929,7 +3929,7 @@ s_MgrMakeReAssocRequest(
     memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
     memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN);
 
-    /* Set the capibility and listen interval */
+    /* Set the capability and listen interval */
     *(sFrame.pwCapInfo) = cpu_to_le16(wCurrCapInfo);
     *(sFrame.pwListenInterval) = cpu_to_le16(wListenInterval);
 
@@ -4019,7 +4019,7 @@ s_MgrMakeReAssocRequest(
 
         sFrame.pRSNWPA->len +=6;
 
-        // RSN Capabilites
+        // RSN Capabilities
         *pbyRSN++=0x00;
         *pbyRSN++=0x00;
         sFrame.pRSNWPA->len +=2;
@@ -4087,7 +4087,7 @@ s_MgrMakeReAssocRequest(
         }
         sFrame.pRSN->len +=6;
 
-        // RSN Capabilites
+        // RSN Capabilities
         if (pMgmt->pCurrBSS->sRSNCapObj.bRSNCapExist == true) {
             memcpy(&sFrame.pRSN->abyRSN[16], &pMgmt->pCurrBSS->sRSNCapObj.wRSNCap, 2);
         } else {
@@ -4138,7 +4138,7 @@ s_MgrMakeReAssocRequest(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -4212,7 +4212,7 @@ s_MgrMakeAssocResponse(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -4333,7 +4333,7 @@ s_vMgrRxProbeResponse(
             byIEChannel = sFrame.pDSParms->byCurrChannel;
         }
         if (byCurrChannel != byIEChannel) {
-            // adjust channel info. bcs we rcv adjcent channel pakckets
+            // adjust channel info. bcs we rcv adjacent channel packets
             bChannelHit = false;
             byCurrChannel = byIEChannel;
         }
diff --git a/drivers/staging/vt6655/wmgr.h b/drivers/staging/vt6655/wmgr.h
index e3ae562f521..bfa67ae5d40 100644
--- a/drivers/staging/vt6655/wmgr.h
+++ b/drivers/staging/vt6655/wmgr.h
@@ -286,7 +286,7 @@ typedef struct tagSMgmtObject
     CMD_STATE               eCommandState;
     unsigned int	uScanChannel;
 
-    // Desire joinning BSS vars
+    // Desire joining BSS vars
     unsigned char abyDesireSSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
     unsigned char abyDesireBSSID[WLAN_BSSID_LEN];
 
@@ -310,7 +310,7 @@ typedef struct tagSMgmtObject
     unsigned int	uScanEndCh;
     unsigned short wScanSteps;
     unsigned int	uScanBSSType;
-    // Desire scannig vars
+    // Desire scanning vars
     unsigned char abyScanSSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
     unsigned char abyScanBSSID[WLAN_BSSID_LEN];
 
diff --git a/drivers/staging/vt6655/wpa.c b/drivers/staging/vt6655/wpa.c
index 0afb9fe0379..4412fe9396a 100644
--- a/drivers/staging/vt6655/wpa.c
+++ b/drivers/staging/vt6655/wpa.c
@@ -229,7 +229,7 @@ WPA_ParseRSN (
  * Parameters:
  *  In:
  *      byCmd    - Search type
- *      byEncrypt- Encrcypt Type
+ *      byEncrypt- Encrypt Type
  *      pBSSList - BSS list
  *  Out:
  *      none
diff --git a/drivers/staging/vt6655/wpa2.c b/drivers/staging/vt6655/wpa2.c
index 744799cfe83..884db1abe12 100644
--- a/drivers/staging/vt6655/wpa2.c
+++ b/drivers/staging/vt6655/wpa2.c
@@ -175,16 +175,16 @@ WPA2vParseRSN (
                         pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_USE_GROUP;
                         bUseGK = true;
                     } else if ( !memcmp(pbyOUI, abyOUIWEP40, 4)) {
-                        // Invialid CSS, continue to parsing
+                        // Invalid CSS, continue to parsing
                     } else if ( !memcmp(pbyOUI, abyOUITKIP, 4)) {
                         if (pBSSNode->byCSSGK != WLAN_11i_CSS_CCMP)
                             pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_TKIP;
                         else
-                            ; // Invialid CSS, continue to parsing
+                            ; // Invalid CSS, continue to parsing
                     } else if ( !memcmp(pbyOUI, abyOUICCMP, 4)) {
                         pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_CCMP;
                     } else if ( !memcmp(pbyOUI, abyOUIWEP104, 4)) {
-                        // Invialid CSS, continue to parsing
+                        // Invalid CSS, continue to parsing
                     } else {
                         // any vendor checks here
                         pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_UNKNOWN;
@@ -329,7 +329,7 @@ WPA2uSetIEs(
         }
         pRSNIEs->len +=6;
 
-        // RSN Capabilites
+        // RSN Capabilities
         if (pMgmt->pCurrBSS->sRSNCapObj.bRSNCapExist == true) {
             memcpy(&pRSNIEs->abyRSN[16], &pMgmt->pCurrBSS->sRSNCapObj.wRSNCap, 2);
         } else {
diff --git a/drivers/staging/vt6655/wpactl.c b/drivers/staging/vt6655/wpactl.c
index 732ba88dc79..2b6ae1e403b 100644
--- a/drivers/staging/vt6655/wpactl.c
+++ b/drivers/staging/vt6655/wpactl.c
@@ -77,7 +77,7 @@ static void wpadev_setup(struct net_device *dev)
 
 /*
  * Description:
- *      register netdev for wpa supplicant deamon
+ *      register netdev for wpa supplicant daemon
  *
  * Parameters:
  *  In:
@@ -164,7 +164,7 @@ static int wpa_release_wpadev(PSDevice pDevice)
 
 /*
  * Description:
- *      Set enable/disable dev for wpa supplicant deamon
+ *      Set enable/disable dev for wpa supplicant daemon
  *
  * Parameters:
  *  In:
@@ -847,7 +847,7 @@ else
           if(!bWepEnabled)  pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
 	else pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
             //pMgmt->eAuthenMode = WMAC_AUTH_OPEN;
-            //pMgmt->bShareKeyAlgorithm = false; //20080717-06,<Modify> by chester//Fix Open mode, WEP encrytion
+            //pMgmt->bShareKeyAlgorithm = false; //20080717-06,<Modify> by chester//Fix Open mode, WEP encryption
            }
 //mike save old encryption status
 	pDevice->eOldEncryptionStatus = pDevice->eEncryptionStatus;
diff --git a/drivers/staging/vt6655/wroute.c b/drivers/staging/vt6655/wroute.c
index 66e2eeae628..82e93cb8205 100644
--- a/drivers/staging/vt6655/wroute.c
+++ b/drivers/staging/vt6655/wroute.c
@@ -18,7 +18,7 @@
  *
  * File: wroute.c
  *
- * Purpose: handle WMAC frame relay & filterring
+ * Purpose: handle WMAC frame relay & filtering
  *
  * Author: Lyndon Chen
  *
diff --git a/drivers/staging/vt6656/80211mgr.h b/drivers/staging/vt6656/80211mgr.h
index 515b9c1d4d1..e5db73be0e7 100644
--- a/drivers/staging/vt6656/80211mgr.h
+++ b/drivers/staging/vt6656/80211mgr.h
@@ -191,7 +191,7 @@
 
 
 //
-// Cipher Suite Selectors defiened in 802.11i
+// Cipher Suite Selectors defined in 802.11i
 //
 #define WLAN_11i_CSS_USE_GROUP              0
 #define WLAN_11i_CSS_WEP40                  1
@@ -720,7 +720,7 @@ typedef struct tagWLAN_FR_AUTHEN {
 
 } WLAN_FR_AUTHEN, *PWLAN_FR_AUTHEN;
 
-// Deauthenication
+// Deauthentication
 typedef struct tagWLAN_FR_DEAUTHEN {
 
     unsigned int                    uType;
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index 06f27f624db..385501595b4 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -27,7 +27,7 @@
  *
  * Functions:
  *      BBuGetFrameTime        - Calculate data frame transmitting time
- *      BBvCaculateParameter   - Caculate PhyLength, PhyService and Phy Signal parameter for baseband Tx
+ *      BBvCalculateParameter   - Calculate PhyLength, PhyService and Phy Signal parameter for baseband Tx
  *      BBbVT3184Init          - VIA VT3184 baseband chip init code
  *      BBvLoopbackOn          - Turn on BaseBand Loopback mode
  *      BBvLoopbackOff         - Turn off BaseBand Loopback mode
@@ -741,7 +741,7 @@ BBuGetFrameTime (
 }
 
 /*
- * Description: Caculate Length, Service, and Signal fields of Phy for Tx
+ * Description: Calculate Length, Service, and Signal fields of Phy for Tx
  *
  * Parameters:
  *  In:
@@ -757,7 +757,7 @@ BBuGetFrameTime (
  *
  */
 void
-BBvCaculateParameter (
+BBvCalculateParameter (
       PSDevice pDevice,
       unsigned int cbFrameLength,
       WORD wRate,
diff --git a/drivers/staging/vt6656/baseband.h b/drivers/staging/vt6656/baseband.h
index 8db8cd07d5f..844d5a8b13e 100644
--- a/drivers/staging/vt6656/baseband.h
+++ b/drivers/staging/vt6656/baseband.h
@@ -104,7 +104,7 @@ BBuGetFrameTime(
      WORD wRate
     );
 
-void BBvCaculateParameter(PSDevice pDevice,
+void BBvCalculateParameter(PSDevice pDevice,
 			  unsigned int cbFrameLength,
 			  WORD wRate,
 			  BYTE byPacketType,
diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c
index 099936771e6..2ac066df834 100644
--- a/drivers/staging/vt6656/bssdb.c
+++ b/drivers/staging/vt6656/bssdb.c
@@ -226,7 +226,7 @@ PKnownBSS BSSpSearchBSSList(void *hDeviceContext,
                 if (pSelect == NULL) {
                     pSelect = pCurrBSS;
                 } else {
-                    // compare RSSI, select signal strong one
+                    // compare RSSI, select the strongest signal 
                     if (pCurrBSS->uRSSI < pSelect->uRSSI) {
                         pSelect = pCurrBSS;
                     }
@@ -274,9 +274,9 @@ void BSSvClearBSSList(void *hDeviceContext, BOOL bKeepCurrBSSID)
             if (pMgmt->sBSSList[ii].bActive &&
 		!compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID,
 				    pMgmt->abyCurrBSSID)) {
- //mike mark: there are two same BSSID in list if that AP is in hidden ssid mode,one 's SSID is null,
- //                 but other's is obvious, so if it acssociate with your STA  exactly,you must keep two
- //                 of them!!!!!!!!!
+ //mike mark: there are two BSSID's in list. If that AP is in hidden ssid mode, one SSID is null,
+ //                 but other's might not be obvious, so if it associate's with your STA,
+ //                 you must keep the two of them!!
                // bKeepCurrBSSID = FALSE;
                 continue;
             }
@@ -489,7 +489,7 @@ BOOL BSSbInsertToBSSList(void *hDeviceContext,
     }
 
     if (pDevice->bUpdateBBVGA) {
-        // Moniter if RSSI is too strong.
+        // Monitor if RSSI is too strong.
         pBSSList->byRSSIStatCnt = 0;
         RFvRSSITodBm(pDevice, (BYTE)(pRxPacket->uRSSI), &pBSSList->ldBmMAX);
         pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX;
@@ -621,7 +621,7 @@ BOOL BSSbUpdateToBSSList(void *hDeviceContext,
 
     if (pRxPacket->uRSSI != 0) {
         RFvRSSITodBm(pDevice, (BYTE)(pRxPacket->uRSSI), &ldBm);
-        // Moniter if RSSI is too strong.
+        // Monitor if RSSI is too strong.
         pBSSList->byRSSIStatCnt++;
         pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT;
         pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm;
@@ -687,8 +687,8 @@ BOOL BSSbIsSTAInNodeDB(void *hDeviceContext,
 /*+
  *
  * Routine Description:
- *    Find an empty node and allocated; if no empty found,
- *    instand used of most inactive one.
+ *    Find an empty node and allocate it; if no empty node
+ *    is found, then use the most inactive one.
  *
  * Return Value:
  *    None
@@ -718,7 +718,7 @@ void BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex)
         }
     }
 
-    // if not found replace uInActiveCount is largest one.
+    // if not found replace uInActiveCount with the largest one.
     if ( ii == (MAX_NODE_NUM + 1)) {
         *puNodeIndex = SelectIndex;
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Replace inactive node = %d\n", SelectIndex);
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index e3ddc0b5531..826520b0338 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -28,9 +28,9 @@
  *      CARDbIsOFDMinBasicRate - Check if any OFDM rate is in BasicRateSet
  *      CARDvSetLoopbackMode - Set Loopback mode
  *      CARDbSoftwareReset - Sortware reset NIC
- *      CARDqGetTSFOffset - Caculate TSFOffset
+ *      CARDqGetTSFOffset - Calculate TSFOffset
  *      CARDbGetCurrentTSF - Read Current NIC TSF counter
- *      CARDqGetNextTBTT - Caculate Next Beacon TSF counter
+ *      CARDqGetNextTBTT - Calculate Next Beacon TSF counter
  *      CARDvSetFirstNextTBTT - Set NIC Beacon time
  *      CARDvUpdateNextTBTT - Sync. NIC Beacon time
  *      CARDbRadioPowerOff - Turn Off NIC Radio Power
@@ -40,7 +40,7 @@
  *
  * Revision History:
  *      06-10-2003 Bryan YC Fan:  Re-write codes to support VT3253 spec.
- *      08-26-2003 Kyle Hsu:      Modify the defination type of dwIoBase.
+ *      08-26-2003 Kyle Hsu:      Modify the definition type of dwIoBase.
  *      09-01-2003 Bryan YC Fan:  Add vUpdateIFS().
  *
  */
@@ -200,7 +200,7 @@ static WORD swGetOFDMControlRate(void *pDeviceHandler, WORD wRateIdx)
 }
 
 /*
- * Description: Caculate TxRate and RsvTime fields for RSPINF in OFDM mode.
+ * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode.
  *
  * Parameters:
  *  In:
@@ -214,7 +214,7 @@ static WORD swGetOFDMControlRate(void *pDeviceHandler, WORD wRateIdx)
  *
  */
 void
-CARDvCaculateOFDMRParameter (
+CARDvCalculateOFDMRParameter (
       WORD wRate,
       BYTE byBBType,
      PBYTE pbyTxRate,
@@ -337,7 +337,7 @@ void CARDvSetRSPINF(void *pDeviceHandler, BYTE byBBType)
     int     i;
 
     //RSPINF_b_1
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          swGetCCKControlRate(pDevice, RATE_1M),
                          PK_TYPE_11B,
@@ -347,7 +347,7 @@ void CARDvSetRSPINF(void *pDeviceHandler, BYTE byBBType)
     );
 
     ///RSPINF_b_2
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          swGetCCKControlRate(pDevice, RATE_2M),
                          PK_TYPE_11B,
@@ -357,7 +357,7 @@ void CARDvSetRSPINF(void *pDeviceHandler, BYTE byBBType)
     );
 
     //RSPINF_b_5
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          swGetCCKControlRate(pDevice, RATE_5M),
                          PK_TYPE_11B,
@@ -367,7 +367,7 @@ void CARDvSetRSPINF(void *pDeviceHandler, BYTE byBBType)
     );
 
     //RSPINF_b_11
-    BBvCaculateParameter(pDevice,
+    BBvCalculateParameter(pDevice,
                          14,
                          swGetCCKControlRate(pDevice, RATE_11M),
                          PK_TYPE_11B,
@@ -377,55 +377,55 @@ void CARDvSetRSPINF(void *pDeviceHandler, BYTE byBBType)
     );
 
     //RSPINF_a_6
-    CARDvCaculateOFDMRParameter (RATE_6M,
+    CARDvCalculateOFDMRParameter (RATE_6M,
                                  byBBType,
                                  &abyTxRate[0],
                                  &abyRsvTime[0]);
 
     //RSPINF_a_9
-    CARDvCaculateOFDMRParameter (RATE_9M,
+    CARDvCalculateOFDMRParameter (RATE_9M,
                                  byBBType,
                                  &abyTxRate[1],
                                  &abyRsvTime[1]);
 
     //RSPINF_a_12
-    CARDvCaculateOFDMRParameter (RATE_12M,
+    CARDvCalculateOFDMRParameter (RATE_12M,
                                  byBBType,
                                  &abyTxRate[2],
                                  &abyRsvTime[2]);
 
     //RSPINF_a_18
-    CARDvCaculateOFDMRParameter (RATE_18M,
+    CARDvCalculateOFDMRParameter (RATE_18M,
                                  byBBType,
                                  &abyTxRate[3],
                                  &abyRsvTime[3]);
 
     //RSPINF_a_24
-    CARDvCaculateOFDMRParameter (RATE_24M,
+    CARDvCalculateOFDMRParameter (RATE_24M,
                                  byBBType,
                                  &abyTxRate[4],
                                  &abyRsvTime[4]);
 
     //RSPINF_a_36
-    CARDvCaculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_36M),
+    CARDvCalculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_36M),
                                  byBBType,
                                  &abyTxRate[5],
                                  &abyRsvTime[5]);
 
     //RSPINF_a_48
-    CARDvCaculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_48M),
+    CARDvCalculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_48M),
                                  byBBType,
                                  &abyTxRate[6],
                                  &abyRsvTime[6]);
 
     //RSPINF_a_54
-    CARDvCaculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_54M),
+    CARDvCalculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_54M),
                                  byBBType,
                                  &abyTxRate[7],
                                  &abyRsvTime[7]);
 
     //RSPINF_a_72
-    CARDvCaculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_54M),
+    CARDvCalculateOFDMRParameter (swGetOFDMControlRate(pDevice, RATE_54M),
                                  byBBType,
                                  &abyTxRate[8],
                                  &abyRsvTime[8]);
@@ -640,7 +640,7 @@ BYTE CARDbyGetPktType(void *pDeviceHandler)
 
 
 /*
- * Description: Caculate TSF offset of two TSF input
+ * Description: Calculate TSF offset of two TSF input
  *              Get TSF Offset from RxBCN's TSF and local TSF
  *
  * Parameters:
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 171dd68cf5b..6370d103910 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -478,7 +478,7 @@ typedef struct __device_info {
     unsigned int                        cbTD;
 
     //
-    //  Variables to track resources for the Interript In Pipe
+    //  Variables to track resources for the Interrupt In Pipe
     //
     INT_BUFFER                  intBuf;
     BOOL                        fKillEventPollingThread;
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index e4bdf2a2b58..28edf9e7efc 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -200,7 +200,7 @@ s_vProcessRxMACHeader (
     } else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
         cbHeaderSize += 6;
         pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
-	if ((*pwType == cpu_to_le16(ETH_P_IPX)) ||
+	if ((*pwType == cpu_to_be16(ETH_P_IPX)) ||
 	    (*pwType == cpu_to_le16(0xF380))) {
 		cbHeaderSize -= 8;
             pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
@@ -748,7 +748,7 @@ RXbBulkInProcessData (
     if ((*pbyRSSI != 0) &&
         (pMgmt->pCurrBSS!=NULL)) {
         RFvRSSITodBm(pDevice, *pbyRSSI, &ldBm);
-        // Moniter if RSSI is too strong.
+        // Monitor if RSSI is too strong.
         pMgmt->pCurrBSS->byRSSIStatCnt++;
         pMgmt->pCurrBSS->byRSSIStatCnt %= RSSI_STAT_COUNT;
         pMgmt->pCurrBSS->ldBmAverage[pMgmt->pCurrBSS->byRSSIStatCnt] = ldBm;
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index 682002a5b8d..0a73d4060ee 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -18,7 +18,7 @@
  *
  * File: hostap.c
  *
- * Purpose: handle hostap deamon ioctl input/out functions
+ * Purpose: handle hostap daemon ioctl input/out functions
  *
  * Author: Lyndon Chen
  *
@@ -48,7 +48,7 @@ static int          msglevel                =MSG_LEVEL_INFO;
 
 /*
  * Description:
- *      register net_device (AP) for hostap deamon
+ *      register net_device (AP) for hostap daemon
  *
  * Parameters:
  *  In:
@@ -176,7 +176,7 @@ int vt6656_hostap_set_hostapd(PSDevice pDevice, int val, int rtnl_locked)
 
 /*
  * Description:
- *      remove station function supported for hostap deamon
+ *      remove station function supported for hostap daemon
  *
  * Parameters:
  *  In:
@@ -204,7 +204,7 @@ static int hostap_remove_sta(PSDevice pDevice,
 
 /*
  * Description:
- *      add a station from hostap deamon
+ *      add a station from hostap daemon
  *
  * Parameters:
  *  In:
@@ -439,9 +439,7 @@ static int hostap_set_encryption(PSDevice pDevice,
 		return -EINVAL;
 	}
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
 		if (param->u.crypt.idx >= MAX_GROUP_KEY)
 			return -EINVAL;
         iNodeIndex = 0;
@@ -663,9 +661,7 @@ static int hostap_get_encryption(PSDevice pDevice,
 
 	param->u.crypt.err = 0;
 
-	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
-	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
-	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
+	if (is_broadcast_ether_addr(param->sta_addr)) {
         iNodeIndex = 0;
 	} else {
 	    if (BSSbIsSTAInNodeDB(pDevice, param->sta_addr, &iNodeIndex) == FALSE) {
@@ -686,7 +682,7 @@ static int hostap_get_encryption(PSDevice pDevice,
 
 /*
  * Description:
- *      vt6656_hostap_ioctl main function supported for hostap deamon.
+ *      vt6656_hostap_ioctl main function supported for hostap daemon.
  *
  * Parameters:
  *  In:
@@ -732,8 +728,8 @@ int vt6656_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 		break;
 	case VIAWGET_HOSTAPD_SET_ASSOC_AP_ADDR:
 	    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_SET_ASSOC_AP_ADDR \n");
-		return -EOPNOTSUPP;
-		break;
+		ret = -EOPNOTSUPP;
+		goto out;
 	case VIAWGET_HOSTAPD_FLUSH:
 	    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_FLUSH \n");
         spin_lock_irq(&pDevice->lock);
@@ -777,13 +773,13 @@ int vt6656_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 
 	case VIAWGET_HOSTAPD_STA_CLEAR_STATS:
 	    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_STA_CLEAR_STATS \n");
-	    return -EOPNOTSUPP;
-
+	    ret = -EOPNOTSUPP;
+	    goto out;
 	default:
 	    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "vt6656_hostap_ioctl: unknown cmd=%d\n",
 		       (int)param->cmd);
-		return -EOPNOTSUPP;
-		break;
+		ret = -EOPNOTSUPP;
+		goto out;
 	}
 
 
diff --git a/drivers/staging/vt6656/int.c b/drivers/staging/vt6656/int.c
index eba4b5061cf..bba31caae03 100644
--- a/drivers/staging/vt6656/int.c
+++ b/drivers/staging/vt6656/int.c
@@ -149,7 +149,7 @@ void INTnsProcessData(PSDevice pDevice)
 					pMgmt->sNodeDBTable[0].bRxPSPoll =
 						FALSE;
 				} else if (pMgmt->byDTIMCount == 0) {
-					/* check if mutltcast tx bufferring */
+					/* check if multicast tx buffering */
 					pMgmt->byDTIMCount =
 						pMgmt->byDTIMPeriod-1;
 					pMgmt->sNodeDBTable[0].bRxPSPoll = TRUE;
diff --git a/drivers/staging/vt6656/ioctl.c b/drivers/staging/vt6656/ioctl.c
index 5b9a84f9518..b6af5f69112 100644
--- a/drivers/staging/vt6656/ioctl.c
+++ b/drivers/staging/vt6656/ioctl.c
@@ -526,11 +526,8 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			pMgmt->abyIBSSSuppRates[3] |= BIT7;
 		}
 
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Support Rate= %x %x %x %x\n",
-			pMgmt->abyIBSSSuppRates[2],
-			pMgmt->abyIBSSSuppRates[3],
-			pMgmt->abyIBSSSuppRates[4],
-			pMgmt->abyIBSSSuppRates[5]);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Support Rate= %*ph\n",
+			4, pMgmt->abyIBSSSuppRates + 2);
 
 		netif_stop_queue(pDevice->dev);
 		spin_lock_irq(&pDevice->lock);
@@ -620,7 +617,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			result = -EFAULT;
 			break;
 		}
-		/* for some AP maybe good authenticate */
+		/* for some AP's maybe a good authentication */
 		if (wpa_Result.key_mgmt == 0x20)
 			pMgmt->Cisco_cckm = 1;
 		else
@@ -644,7 +641,7 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 		break;
 
 	default:
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Private command not support..\n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Private command not supported..\n");
 	}
 
 	return result;
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index 8b9894b1146..8f198749ca5 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -674,7 +674,7 @@ int iwctl_giwaplist(struct net_device *dev, struct iw_request_info *info,
 			jj++;
 		}
 
-		wrq->flags = 1; // Should be define'd
+		wrq->flags = 1; // Should be defined
 		wrq->length = jj;
 		memcpy(extra, sock, sizeof(struct sockaddr) * jj);
 		memcpy(extra + sizeof(struct sockaddr) * jj, qual, sizeof(struct iw_quality) * jj);
diff --git a/drivers/staging/vt6656/key.c b/drivers/staging/vt6656/key.c
index ee62a06a75f..a61fcb9591a 100644
--- a/drivers/staging/vt6656/key.c
+++ b/drivers/staging/vt6656/key.c
@@ -403,7 +403,7 @@ BOOL KeybRemoveKey(
     BOOL    bReturnValue = FALSE;
 
     if (is_broadcast_ether_addr(pbyBSSID)) {
-        // dealte all key
+        // delete all keys
         if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
             for (i=0;i<MAX_KEY_TABLE;i++) {
                 pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
@@ -618,7 +618,7 @@ BOOL KeybGetTransmitKey(PSKeyManagement pTable, PBYTE pbyBSSID, DWORD dwKeyType,
 
 
 /*
- * Description: Check Pairewise Key
+ * Description: Check Pairwise Key
  *
  * Parameters:
  *  In:
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index b06fd5b723f..ad422dea702 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -29,14 +29,14 @@
  *   vt6656_probe - module initial (insmod) driver entry
  *   device_remove1 - module remove entry
  *   device_open - allocate dma/descripter resource & initial mac/bbp function
- *   device_xmit - asynchrous data tx function
+ *   device_xmit - asynchronous data tx function
  *   device_set_multi - set mac filter
  *   device_ioctl - ioctl entry
- *   device_close - shutdown mac/bbp & free dma/descripter resource
+ *   device_close - shutdown mac/bbp & free dma/descriptor resource
  *   device_alloc_frag_buf - rx fragement pre-allocated function
  *   device_free_tx_bufs - free tx buffer function
  *   device_dma0_tx_80211- tx 802.11 frame via dma0
- *   device_dma0_xmit- tx PS bufferred frame via dma0
+ *   device_dma0_xmit- tx PS buffered frame via dma0
  *   device_init_registers- initial MAC & BBP & RF internal registers.
  *   device_init_rings- initial tx/rx ring buffer
  *   device_init_defrag_cb- initial & allocate de-fragement buffer.
@@ -189,7 +189,7 @@ DEVICE_PARAM(b80211hEnable, "802.11h mode");
 // Static vars definitions
 //
 
-static struct usb_device_id vt6656_table[] __devinitdata = {
+static struct usb_device_id vt6656_table[] = {
 	{USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
 	{}
 };
@@ -316,7 +316,7 @@ static void device_init_diversity_timer(PSDevice pDevice)
 
 
 //
-// Initialiation of MAC & BBP registers
+// Initialization of MAC & BBP registers
 //
 
 static BOOL device_init_registers(PSDevice pDevice, DEVICE_INIT_TYPE InitType)
@@ -639,7 +639,7 @@ static BOOL device_release_WPADEV(PSDevice pDevice)
   viawget_wpa_header *wpahdr;
   int ii=0;
  // wait_queue_head_t	Set_wait;
-  //send device close to wpa_supplicnat layer
+  //send device close to wpa_supplicant layer
     if (pDevice->bWPADEVUp==TRUE) {
                  wpahdr = (viawget_wpa_header *)pDevice->skb->data;
                  wpahdr->type = VIAWGET_DEVICECLOSE_MSG;
@@ -1010,7 +1010,7 @@ static int  device_open(struct net_device *dev) {
     }
 
     if (device_init_defrag_cb(pDevice)== FALSE) {
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " Initial defragement cb fail \n");
+        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " Initial defragment cb fail \n");
         goto free_rx_tx;
     }
 
@@ -1296,7 +1296,7 @@ static inline u32 ether_crc(int length, unsigned char *data)
     return crc;
 }
 
-//find out  the start  position of str2 from str1
+//find out the start  position of str2 from str1
 static unsigned char *kstrstr(const unsigned char *str1,
 			      const unsigned char *str2) {
   int str1_len = strlen(str1);
@@ -1345,7 +1345,7 @@ static int Config_FileGetParameter(unsigned char *string,
        }
 
    memset(buf2,0,100);
-   memcpy(buf2,start_p,end_p-start_p);    //get the tartget line
+   memcpy(buf2,start_p,end_p-start_p);    //get the target line
    buf2[end_p-start_p]='\0';
 
    //find value
@@ -1396,7 +1396,7 @@ static unsigned char *Config_FileOperation(PSDevice pDevice)
 	  }
 
      if(!(filp->f_op) || !(filp->f_op->read) ||!(filp->f_op->write)) {
-           printk("file %s cann't readable or writable?\n",config_path);
+           printk("file %s is not read or writeable?\n",config_path);
 	  result = -1;
 	  goto error1;
      	}
@@ -1969,7 +1969,7 @@ static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) {
 
 	default:
 		rc = -EOPNOTSUPP;
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Ioctl command not support..%x\n", cmd);
+        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Ioctl command not supported..%x\n", cmd);
 
 
     }
diff --git a/drivers/staging/vt6656/power.c b/drivers/staging/vt6656/power.c
index b3136773b5d..ab3a5546205 100644
--- a/drivers/staging/vt6656/power.c
+++ b/drivers/staging/vt6656/power.c
@@ -19,7 +19,7 @@
  *
  * File: power.c
  *
- * Purpose: Handles 802.11 power management  functions
+ * Purpose: Handles 802.11 power management functions
  *
  * Author: Lyndon Chen
  *
diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c
index 3fd0478a9a5..593cdc713b0 100644
--- a/drivers/staging/vt6656/rf.c
+++ b/drivers/staging/vt6656/rf.c
@@ -26,7 +26,7 @@
  * Date: Feb. 19, 2004
  *
  * Functions:
- *      IFRFbWriteEmbeded      - Embeded write RF register via MAC
+ *      IFRFbWriteEmbedded      - Embedded write RF register via MAC
  *
  * Revision History:
  *
@@ -711,7 +711,7 @@ const BYTE RFaby11aChannelIndex[200] = {
 /*---------------------  Export Functions  --------------------------*/
 
 /*
- * Description: Write to IF/RF, by embeded programming
+ * Description: Write to IF/RF, by embedded programming
  *
  * Parameters:
  *  In:
@@ -722,7 +722,7 @@ const BYTE RFaby11aChannelIndex[200] = {
  * Return Value: TRUE if succeeded; FALSE if failed.
  *
  */
-BOOL IFRFbWriteEmbeded (PSDevice pDevice, DWORD dwData)
+BOOL IFRFbWriteEmbedded (PSDevice pDevice, DWORD dwData)
 {
     BYTE        pbyData[4];
 
@@ -828,23 +828,23 @@ BOOL        bResult = TRUE;
         case RF_AL2230 :
             if (pDevice->byCurPwr >= AL2230_PWR_IDX_LEN)
                 return FALSE;
-            bResult &= IFRFbWriteEmbeded(pDevice, dwAL2230PowerTable[pDevice->byCurPwr]);
+            bResult &= IFRFbWriteEmbedded(pDevice, dwAL2230PowerTable[pDevice->byCurPwr]);
             if (uRATE <= RATE_11M)
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x0001B400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x0001B400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             else
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             break;
 
         case RF_AL2230S :
             if (pDevice->byCurPwr >= AL2230_PWR_IDX_LEN)
                 return FALSE;
-            bResult &= IFRFbWriteEmbeded(pDevice, dwAL2230PowerTable[pDevice->byCurPwr]);
+            bResult &= IFRFbWriteEmbedded(pDevice, dwAL2230PowerTable[pDevice->byCurPwr]);
             if (uRATE <= RATE_11M) {
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x040C1400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x00299B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x040C1400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x00299B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             }else {
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x00099B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x0005A400+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x00099B00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW);
             }
             break;
 
@@ -854,10 +854,10 @@ BOOL        bResult = TRUE;
                 DWORD       dwMax7230Pwr;
 
                 if (uRATE <= RATE_11M) { //RobertYu:20060426, for better 11b mask
-                    bResult &= IFRFbWriteEmbeded(pDevice, 0x111BB900+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW);
+                    bResult &= IFRFbWriteEmbedded(pDevice, 0x111BB900+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW);
                 }
                 else {
-                    bResult &= IFRFbWriteEmbeded(pDevice, 0x221BB900+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW);
+                    bResult &= IFRFbWriteEmbedded(pDevice, 0x221BB900+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW);
                 }
 
                 if (pDevice->byCurPwr > AL7230_PWR_IDX_LEN) return FALSE;
@@ -866,7 +866,7 @@ BOOL        bResult = TRUE;
                 dwMax7230Pwr = 0x080C0B00 | ( (pDevice->byCurPwr) << 12 ) |
                                  (BY_AL7230_REG_LEN << 3 )  | IFREGCTL_REGW;
 
-                bResult &= IFRFbWriteEmbeded(pDevice, dwMax7230Pwr);
+                bResult &= IFRFbWriteEmbedded(pDevice, dwMax7230Pwr);
                 break;
             }
             break;
@@ -879,7 +879,7 @@ BOOL        bResult = TRUE;
                 return FALSE;
             dwVT3226Pwr = ((0x3F-pDevice->byCurPwr) << 20 ) | ( 0x17 << 8 ) /* Reg7 */ |
                            (BY_VT3226_REG_LEN << 3 )  | IFREGCTL_REGW;
-            bResult &= IFRFbWriteEmbeded(pDevice, dwVT3226Pwr);
+            bResult &= IFRFbWriteEmbedded(pDevice, dwVT3226Pwr);
             break;
         }
 
@@ -894,27 +894,27 @@ BOOL        bResult = TRUE;
 
                 dwVT3226Pwr = ((0x3F-pDevice->byCurPwr) << 20 ) | ( 0xE07 << 8 ) /* Reg7 */ |   //RobertYu:20060420, TWIF 1.10
                                (BY_VT3226_REG_LEN << 3 )  | IFREGCTL_REGW;
-                bResult &= IFRFbWriteEmbeded(pDevice, dwVT3226Pwr);
+                bResult &= IFRFbWriteEmbedded(pDevice, dwVT3226Pwr);
 
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x03C6A200+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x03C6A200+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW);
                 if (pDevice->sMgmtObj.eScanState != WMAC_NO_SCANNING) {
                     // scanning, the channel number is pDevice->uScanChannel
                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"@@@@ RFbRawSetPower> 11B mode uCurrChannel[%d]\n", pDevice->sMgmtObj.uScanChannel);
-                    bResult &= IFRFbWriteEmbeded(pDevice, dwVT3226D0LoCurrentTable[pDevice->sMgmtObj.uScanChannel-1]); //RobertYu:20060420, sometimes didn't change channel just set power with different rate
+                    bResult &= IFRFbWriteEmbedded(pDevice, dwVT3226D0LoCurrentTable[pDevice->sMgmtObj.uScanChannel-1]); //RobertYu:20060420, sometimes didn't change channel just set power with different rate
                 } else {
                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"@@@@ RFbRawSetPower> 11B mode uCurrChannel[%d]\n", pDevice->sMgmtObj.uCurrChannel);
-                    bResult &= IFRFbWriteEmbeded(pDevice, dwVT3226D0LoCurrentTable[pDevice->sMgmtObj.uCurrChannel-1]); //RobertYu:20060420, sometimes didn't change channel just set power with different rate
+                    bResult &= IFRFbWriteEmbedded(pDevice, dwVT3226D0LoCurrentTable[pDevice->sMgmtObj.uCurrChannel-1]); //RobertYu:20060420, sometimes didn't change channel just set power with different rate
                 }
 
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x015C0800+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060420, ok now, new switching power (mini-pci can have bigger power consumption)
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x015C0800+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060420, ok now, new switching power (mini-pci can have bigger power consumption)
             } else {
                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"@@@@ RFbRawSetPower> 11G mode\n");
                 dwVT3226Pwr = ((0x3F-pDevice->byCurPwr) << 20 ) | ( 0x7 << 8 ) /* Reg7 */ |   //RobertYu:20060420, TWIF 1.10
                                (BY_VT3226_REG_LEN << 3 )  | IFREGCTL_REGW;
-                bResult &= IFRFbWriteEmbeded(pDevice, dwVT3226Pwr);
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x00C6A200+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060327
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x016BC600+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060111
-                bResult &= IFRFbWriteEmbeded(pDevice, 0x00900800+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060111
+                bResult &= IFRFbWriteEmbedded(pDevice, dwVT3226Pwr);
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x00C6A200+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060327
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x016BC600+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060111
+                bResult &= IFRFbWriteEmbedded(pDevice, 0x00900800+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060111
             }
             break;
         }
@@ -929,7 +929,7 @@ BOOL        bResult = TRUE;
 
             dwVT3342Pwr =  ((0x3F-pDevice->byCurPwr) << 20 ) | ( 0x27 << 8 ) /* Reg7 */ |
                             (BY_VT3342_REG_LEN << 3 )  | IFREGCTL_REGW;
-            bResult &= IFRFbWriteEmbeded(pDevice, dwVT3342Pwr);
+            bResult &= IFRFbWriteEmbedded(pDevice, dwVT3342Pwr);
             break;
         }
 
@@ -1048,7 +1048,7 @@ BYTE    abyArray[256];
                     wLength1,
                     abyArray
                     );
-    //Channle Table 0
+    //Channel Table 0
     wValue = 0;
     while ( wLength2 > 0 ) {
 
@@ -1106,7 +1106,7 @@ BYTE    abyArray[256];
                     wLength1,
                     abyArray);
 
-        //Channle Table 0
+        //Channel Table 0
         wValue = 0;
         while ( wLength2 > 0 ) {
 
@@ -1141,9 +1141,9 @@ BOOL s_bVT3226D0_11bLoCurrentAdjust(
 
     bResult = TRUE;
     if( b11bMode )
-        bResult &= IFRFbWriteEmbeded(pDevice, dwVT3226D0LoCurrentTable[byChannel-1]);
+        bResult &= IFRFbWriteEmbedded(pDevice, dwVT3226D0LoCurrentTable[byChannel-1]);
     else
-        bResult &= IFRFbWriteEmbeded(pDevice, 0x016BC600+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060412
+        bResult &= IFRFbWriteEmbedded(pDevice, 0x016BC600+(BY_VT3226_REG_LEN<<3)+IFREGCTL_REGW); //RobertYu:20060412
 
     return bResult;
 }
diff --git a/drivers/staging/vt6656/rf.h b/drivers/staging/vt6656/rf.h
index f5ba8fd7f81..72eb27ac436 100644
--- a/drivers/staging/vt6656/rf.h
+++ b/drivers/staging/vt6656/rf.h
@@ -63,7 +63,7 @@
 extern const BYTE RFaby11aChannelIndex[200];
 /*---------------------  Export Functions  --------------------------*/
 
-BOOL IFRFbWriteEmbeded(PSDevice pDevice, DWORD dwData);
+BOOL IFRFbWriteEmbedded(PSDevice pDevice, DWORD dwData);
 BOOL RFbSetPower(PSDevice pDevice, unsigned int uRATE, unsigned int uCH);
 
 BOOL RFbRawSetPower(
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index bb464527fc1..33908387988 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -841,7 +841,7 @@ s_uFillDataHead (
 	if ((uDMAIdx == TYPE_ATIMDMA) || (uDMAIdx == TYPE_BEACONDMA)) {
 		PSTxDataHead_ab pBuf = (PSTxDataHead_ab) pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (PWORD)&(pBuf->wTransmitLength), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
             );
             //Get Duration and TimeStampOff
@@ -858,10 +858,10 @@ s_uFillDataHead (
             if (byFBOption == AUTO_FB_NONE) {
                 PSTxDataHead_g pBuf = (PSTxDataHead_g)pTxDataHead;
                 //Get SignalField,ServiceField,Length
-                BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+                BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                     (PWORD)&(pBuf->wTransmitLength_a), (PBYTE)&(pBuf->byServiceField_a), (PBYTE)&(pBuf->bySignalField_a)
                 );
-                BBvCaculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+                BBvCalculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                     (PWORD)&(pBuf->wTransmitLength_b), (PBYTE)&(pBuf->byServiceField_b), (PBYTE)&(pBuf->bySignalField_b)
                 );
                 //Get Duration and TimeStamp
@@ -881,10 +881,10 @@ s_uFillDataHead (
                 // Auto Fallback
                 PSTxDataHead_g_FB pBuf = (PSTxDataHead_g_FB)pTxDataHead;
                 //Get SignalField,ServiceField,Length
-                BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+                BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                     (PWORD)&(pBuf->wTransmitLength_a), (PBYTE)&(pBuf->byServiceField_a), (PBYTE)&(pBuf->bySignalField_a)
                 );
-                BBvCaculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+                BBvCalculateParameter(pDevice, cbFrameLength, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                     (PWORD)&(pBuf->wTransmitLength_b), (PBYTE)&(pBuf->byServiceField_b), (PBYTE)&(pBuf->bySignalField_b)
                 );
                 //Get Duration and TimeStamp
@@ -907,7 +907,7 @@ s_uFillDataHead (
             // Auto Fallback
             PSTxDataHead_a_FB pBuf = (PSTxDataHead_a_FB)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (PWORD)&(pBuf->wTransmitLength), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
             );
             //Get Duration and TimeStampOff
@@ -924,7 +924,7 @@ s_uFillDataHead (
         } else {
             PSTxDataHead_ab pBuf = (PSTxDataHead_ab)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (PWORD)&(pBuf->wTransmitLength), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
             );
             //Get Duration and TimeStampOff
@@ -942,7 +942,7 @@ s_uFillDataHead (
     else if (byPktType == PK_TYPE_11B) {
             PSTxDataHead_ab pBuf = (PSTxDataHead_ab)pTxDataHead;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
+            BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate, byPktType,
                 (PWORD)&(pBuf->wTransmitLength), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
             );
             //Get Duration and TimeStampOff
@@ -987,17 +987,17 @@ s_vFillRTSHead (
         uRTSFrameLen -= 4;
     }
 
-    // Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account.
+    // Note: So far RTSHead doesn't appear in ATIM & Beacom DMA, so we don't need to take them into account.
     //       Otherwise, we need to modified codes for them.
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
         if (byFBOption == AUTO_FB_NONE) {
             PSRTS_g pBuf = (PSRTS_g)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField_b), (PBYTE)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField_a), (PBYTE)&(pBuf->bySignalField_a)
             );
             pBuf->wTransmitLength_a = cpu_to_le16(wLen);
@@ -1035,11 +1035,11 @@ s_vFillRTSHead (
         else {
            PSRTS_g_FB pBuf = (PSRTS_g_FB)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField_b), (PBYTE)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField_a), (PBYTE)&(pBuf->bySignalField_a)
             );
             pBuf->wTransmitLength_a = cpu_to_le16(wLen);
@@ -1084,7 +1084,7 @@ s_vFillRTSHead (
         if (byFBOption == AUTO_FB_NONE) {
             PSRTS_ab pBuf = (PSRTS_ab)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -1119,7 +1119,7 @@ s_vFillRTSHead (
         else {
             PSRTS_a_FB pBuf = (PSRTS_a_FB)pvRTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
+            BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopOFDMBasicRate, byPktType,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
             );
             pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -1155,7 +1155,7 @@ s_vFillRTSHead (
     else if (byPktType == PK_TYPE_11B) {
         PSRTS_ab pBuf = (PSRTS_ab)pvRTS;
         //Get SignalField,ServiceField,Length
-        BBvCaculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+        BBvCalculateParameter(pDevice, uRTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
             (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField), (PBYTE)&(pBuf->bySignalField)
         );
         pBuf->wTransmitLength = cpu_to_le16(wLen);
@@ -1221,7 +1221,7 @@ s_vFillCTSHead (
             // Auto Fall back
             PSCTS_FB pBuf = (PSCTS_FB)pvCTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField_b), (PBYTE)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
@@ -1246,7 +1246,7 @@ s_vFillCTSHead (
         } else { //if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA)
             PSCTS pBuf = (PSCTS)pvCTS;
             //Get SignalField,ServiceField,Length
-            BBvCaculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
+            BBvCalculateParameter(pDevice, uCTSFrameLen, pDevice->byTopCCKBasicRate, PK_TYPE_11B,
                 (PWORD)&(wLen), (PBYTE)&(pBuf->byServiceField_b), (PBYTE)&(pBuf->bySignalField_b)
             );
             pBuf->wTransmitLength_b = cpu_to_le16(wLen);
@@ -1699,7 +1699,7 @@ s_bPacketToWirelessUsb(
     // 802.1H
     if (ntohs(psEthHeader->wType) > ETH_DATA_LEN) {
 	if (pDevice->dwDiagRefCount == 0) {
-		if ((psEthHeader->wType == cpu_to_le16(ETH_P_IPX)) ||
+		if ((psEthHeader->wType == cpu_to_be16(ETH_P_IPX)) ||
 		    (psEthHeader->wType == cpu_to_le16(0xF380))) {
 			memcpy((PBYTE) (pbyPayloadHead),
 			       abySNAP_Bridgetunnel, 6);
@@ -1827,7 +1827,7 @@ s_bPacketToWirelessUsb(
  *
  * Parameters:
  *  In:
- *      pDevice         - Pointer to adpater
+ *      pDevice         - Pointer to adapter
  *      dwTxBufferAddr  - Transmit Buffer
  *      pPacket         - Packet from upper layer
  *      cbPacketSize    - Transmit Data Length
@@ -2198,7 +2198,7 @@ CMD_STATUS csMgmt_xmit(
 
     if (bIsPSPOLL) {
         // The MAC will automatically replace the Duration-field of MAC header by Duration-field
-        // of  FIFO control header.
+        // of FIFO control header.
         // This will cause AID-field of PS-POLL packet be incorrect (Because PS-POLL's AID field is
         // in the same place of other packet's Duration-field).
         // And it will cause Cisco-AP to issue Disassociation-packet
@@ -2272,7 +2272,7 @@ csBeacon_xmit(
         wCurrentRate = RATE_6M;
         pTxDataHead = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize);
         //Get SignalField,ServiceField,Length
-        BBvCaculateParameter(pDevice, cbFrameSize, wCurrentRate, PK_TYPE_11A,
+        BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate, PK_TYPE_11A,
             (PWORD)&(pTxDataHead->wTransmitLength), (PBYTE)&(pTxDataHead->byServiceField), (PBYTE)&(pTxDataHead->bySignalField)
         );
         //Get Duration and TimeStampOff
@@ -2285,7 +2285,7 @@ csBeacon_xmit(
         pTxBufHead->wFIFOCtl |= FIFOCTL_11B;
         pTxDataHead = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize);
         //Get SignalField,ServiceField,Length
-        BBvCaculateParameter(pDevice, cbFrameSize, wCurrentRate, PK_TYPE_11B,
+        BBvCalculateParameter(pDevice, cbFrameSize, wCurrentRate, PK_TYPE_11B,
             (PWORD)&(pTxDataHead->wTransmitLength), (PBYTE)&(pTxDataHead->byServiceField), (PBYTE)&(pTxDataHead->bySignalField)
         );
         //Get Duration and TimeStampOff
@@ -2473,7 +2473,7 @@ vDMA0_tx_80211(PSDevice  pDevice, struct sk_buff *skb) {
         cbMacHdLen = WLAN_HDR_ADDR3_LEN;
     }
 
-    // hostapd deamon ext support rate patch
+    // hostapd daemon ext support rate patch
     if (WLAN_GET_FC_FSTYPE(p80211Header->sA4.wFrameCtl) == WLAN_FSTYPE_ASSOCRESP) {
 
         if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len != 0) {
@@ -2591,7 +2591,7 @@ vDMA0_tx_80211(PSDevice  pDevice, struct sk_buff *skb) {
     pMACHeader->wFrameCtl &= cpu_to_le16(0xfffc);
     memcpy(pbyPayloadHead, (skb->data + cbMacHdLen), cbFrameBodySize);
 
-    // replace support rate, patch for hostapd deamon( only support 11M)
+    // replace support rate, patch for hostapd daemon( only support 11M)
     if (WLAN_GET_FC_FSTYPE(p80211Header->sA4.wFrameCtl) == WLAN_FSTYPE_ASSOCRESP) {
         if (cbExtSuppRate != 0) {
             if (((PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates)->len != 0)
@@ -2770,7 +2770,7 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
                 pMgmt->abyPSTxMap[0] |= byMask[0];
                 return 0;
             }
-            // muticast/broadcast data rate
+            // multicast/broadcast data rate
 
             if (pDevice->byBBType != BB_TYPE_11A)
                 pDevice->wCurrentRate = RATE_2M;
@@ -2838,10 +2838,10 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
     Packet_Type = skb->data[ETH_HLEN+1];
     Descriptor_type = skb->data[ETH_HLEN+1+1+2];
     Key_info = (skb->data[ETH_HLEN+1+1+2+1] << 8)|(skb->data[ETH_HLEN+1+1+2+2]);
-    if (pDevice->sTxEthHeader.wType == cpu_to_le16(ETH_P_PAE)) {
-	/* 802.1x OR eapol-key challenge frame transfer */
-	if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
-		(Packet_Type == 3)) {
+	if (pDevice->sTxEthHeader.wType == cpu_to_be16(ETH_P_PAE)) {
+		/* 802.1x OR eapol-key challenge frame transfer */
+		if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
+			(Packet_Type == 3)) {
                         bTxeapol_key = TRUE;
                        if(!(Key_info & BIT3) &&  //WPA or RSN group-key challenge
 			   (Key_info & BIT8) && (Key_info & BIT9)) {    //send 2/2 key
@@ -2855,7 +2855,7 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
 			  }
 			  PRINT_K("Authentication completed!!\n");
                         }
-		    else if((Key_info & BIT3) && (Descriptor_type==2) &&  //RSN pairse-key challenge
+		    else if((Key_info & BIT3) && (Descriptor_type==2) &&  //RSN pairwise-key challenge
 			       (Key_info & BIT8) && (Key_info & BIT9)) {
 			  pDevice->fWPA_Authened = TRUE;
                             PRINT_K("WPA2 Authentication completed!!\n");
@@ -2987,19 +2987,19 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
         }
     }
 
-    if (pDevice->sTxEthHeader.wType == cpu_to_le16(ETH_P_PAE)) {
-        if (pDevice->byBBType != BB_TYPE_11A) {
-            pDevice->wCurrentRate = RATE_1M;
-            pDevice->byACKRate = RATE_1M;
-            pDevice->byTopCCKBasicRate = RATE_1M;
-            pDevice->byTopOFDMBasicRate = RATE_6M;
-        } else {
-            pDevice->wCurrentRate = RATE_6M;
-            pDevice->byACKRate = RATE_6M;
-            pDevice->byTopCCKBasicRate = RATE_1M;
-            pDevice->byTopOFDMBasicRate = RATE_6M;
-        }
-    }
+	if (pDevice->sTxEthHeader.wType == cpu_to_be16(ETH_P_PAE)) {
+		if (pDevice->byBBType != BB_TYPE_11A) {
+			pDevice->wCurrentRate = RATE_1M;
+			pDevice->byACKRate = RATE_1M;
+			pDevice->byTopCCKBasicRate = RATE_1M;
+			pDevice->byTopOFDMBasicRate = RATE_6M;
+		} else {
+			pDevice->wCurrentRate = RATE_6M;
+			pDevice->byACKRate = RATE_6M;
+			pDevice->byTopCCKBasicRate = RATE_1M;
+			pDevice->byTopOFDMBasicRate = RATE_6M;
+		}
+	}
 
     DBG_PRT(MSG_LEVEL_DEBUG,
 	    KERN_INFO "dma_tx: pDevice->wCurrentRate = %d\n",
@@ -3015,7 +3015,7 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
 
     if (bNeedEncryption == TRUE) {
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ntohs Pkt Type=%04x\n", ntohs(pDevice->sTxEthHeader.wType));
-	if ((pDevice->sTxEthHeader.wType) == cpu_to_le16(ETH_P_PAE)) {
+	if ((pDevice->sTxEthHeader.wType) == cpu_to_be16(ETH_P_PAE)) {
 		bNeedEncryption = FALSE;
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Pkt Type=%04x\n", (pDevice->sTxEthHeader.wType));
             if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
diff --git a/drivers/staging/vt6656/tcrc.c b/drivers/staging/vt6656/tcrc.c
index e25021e850a..2237eeb5ec5 100644
--- a/drivers/staging/vt6656/tcrc.c
+++ b/drivers/staging/vt6656/tcrc.c
@@ -18,7 +18,7 @@
  *
  * File: tcrc.c
  *
- * Purpose: Implement functions to caculate CRC
+ * Purpose: Implement functions to calculate CRC
  *
  * Author: Tevin Chen
  *
diff --git a/drivers/staging/vt6656/tcrc.h b/drivers/staging/vt6656/tcrc.h
index 4dfd01e477a..dc54bd8fc4f 100644
--- a/drivers/staging/vt6656/tcrc.h
+++ b/drivers/staging/vt6656/tcrc.h
@@ -18,7 +18,7 @@
  *
  * File: tcrc.h
  *
- * Purpose: Implement functions to caculate CRC
+ * Purpose: Implement functions to calculate CRC
  *
  * Author: Tevin Chen
  *
diff --git a/drivers/staging/vt6656/tether.c b/drivers/staging/vt6656/tether.c
index 4f368f174b2..083b2153a27 100644
--- a/drivers/staging/vt6656/tether.c
+++ b/drivers/staging/vt6656/tether.c
@@ -25,7 +25,7 @@
  * Date: May 21, 1996
  *
  * Functions:
- *      ETHbyGetHashIndexByCrc32 - Caculate multicast hash value by CRC32
+ *      ETHbyGetHashIndexByCrc32 - Calculate multicast hash value by CRC32
  *      ETHbIsBufferCrc32Ok - Check CRC value of the buffer if Ok or not
  *
  * Revision History:
@@ -50,7 +50,7 @@
 
 
 /*
- * Description: Caculate multicast hash value by CRC32
+ * Description: Calculate multicast hash value by CRC32
  *
  * Parameters:
  *  In:
diff --git a/drivers/staging/vt6656/tkip.c b/drivers/staging/vt6656/tkip.c
index 0715636cb9c..003123e550f 100644
--- a/drivers/staging/vt6656/tkip.c
+++ b/drivers/staging/vt6656/tkip.c
@@ -168,7 +168,7 @@ static unsigned int rotr1(unsigned int a)
 
 
 /*
- * Description: Caculate RC4Key fom TK, TA, and TSC
+ * Description: Calculate RC4Key fom TK, TA, and TSC
  *
  * Parameters:
  *  In:
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 9d2caa819f4..586fbe1627f 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -263,7 +263,7 @@ s_vProbeChannel(
  *
  *
  * Return Value:
- *    A ptr to Tx frame or NULL on allocation failue
+ *    A ptr to Tx frame or NULL on allocation failure
  *
 -*/
 
@@ -751,7 +751,7 @@ void vRunCommand(void *hDeviceContext)
                       pDevice->nTxDataTimeCout = 0;
 		 }
 		 else {
-		   // printk("mike:-->First time triger TimerTxData InSleep\n");
+		   // printk("mike:-->First time trigger TimerTxData InSleep\n");
 		 }
 		pDevice->IsTxDataTrigger = TRUE;
                 add_timer(&pDevice->sTimerTxData);
@@ -794,7 +794,7 @@ void vRunCommand(void *hDeviceContext)
 			DBG_PRT(MSG_LEVEL_DEBUG,
 				KERN_INFO "vMgrCreateOwnIBSS fail!\n");
                 }
-                // alway turn off unicast bit
+                // always turn off unicast bit
                 MACvRegBitsOff(pDevice, MAC_REG_RCR, RCR_UNICAST);
                 pDevice->byRxMode &= ~RCR_UNICAST;
                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wcmd: rx_mode = %x\n", pDevice->byRxMode );
@@ -946,7 +946,7 @@ void vRunCommand(void *hDeviceContext)
                   pItemSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID;
                   pItemSSID->len = 0;
                   memset(pItemSSID->abySSID, 0, WLAN_SSID_MAXLEN);
-                //clear dessire SSID
+                //clear desired SSID
                 pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID;
                 pItemSSID->len = 0;
                 memset(pItemSSID->abySSID, 0, WLAN_SSID_MAXLEN);
diff --git a/drivers/staging/vt6656/wctl.c b/drivers/staging/vt6656/wctl.c
index c231ae7176f..9249263b2da 100644
--- a/drivers/staging/vt6656/wctl.c
+++ b/drivers/staging/vt6656/wctl.c
@@ -89,7 +89,7 @@ BOOL WCTLbIsDuplicate (PSCache pCache, PS802_11Header pMACHeader)
             ADD_ONE_WITH_WRAP_AROUND(uIndex, DUPLICATE_RX_CACHE_LENGTH);
         }
     }
-    /* Not fount in cache - insert */
+    /* Not found in cache - insert */
     pCacheEntry = &pCache->asCacheEntry[pCache->uInPtr];
     pCacheEntry->wFmSequence = pMACHeader->wSeqCtl;
     memcpy(&(pCacheEntry->abyAddr2[0]), &(pMACHeader->abyAddr2[0]), ETH_ALEN);
diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index f08e2d15c7b..7db6a8d3508 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -27,7 +27,7 @@
  *
  * Functions:
  *      nsMgrObjectInitial - Initialize Management Objet data structure
- *      vMgrObjectReset - Reset Management Objet data structure
+ *      vMgrObjectReset - Reset Management Object data structure
  *      vMgrAssocBeginSta - Start associate function
  *      vMgrReAssocBeginSta - Start reassociate function
  *      vMgrDisassocBeginSta - Start disassociate function
@@ -54,7 +54,7 @@
  *      bMgrPrepareBeaconToSend - Prepare Beacon frame
  *      s_vMgrLogStatus - Log 802.11 Status
  *      vMgrRxManagePacket - Rcv management frame dispatch function
- *      s_vMgrFormatTIM- Assember TIM field of beacon
+ *      s_vMgrFormatTIM- Assembler TIM field of beacon
  *      vMgrTimerInit- Initial 1-sec and command call back funtions
  *
  * Revision History:
@@ -2032,7 +2032,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==TRUE)
                 }
 
                 //
-                // Preamble may change dynamiclly
+                // Preamble may change dynamically
                 //
                 byOldPreambleType = pDevice->byPreambleType;
                 if (WLAN_GET_CAP_INFO_SHORTPREAMBLE(pBSSList->wCapInfo)) {
@@ -2044,7 +2044,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==TRUE)
                 if (pDevice->byPreambleType != byOldPreambleType)
                     CARDvSetRSPINF(pDevice, (BYTE)pDevice->byBBType);
             //
-            // Basic Rate Set may change dynamiclly
+            // Basic Rate Set may change dynamically
             //
             if (pBSSList->eNetworkTypeInUse == PHY_TYPE_11B) {
                 uRateLen = WLAN_RATES_MAXLEN_11B;
@@ -2188,7 +2188,7 @@ if(ChannelExceedZoneType(pDevice,byCurrChannel)==TRUE)
             // During dpc, already in spinlocked.
             if (BSSbIsSTAInNodeDB(pDevice, sFrame.pHdr->sA3.abyAddr2, &uNodeIndex)) {
 
-                // Update the STA, (Techically the Beacons of all the IBSS nodes
+                // Update the STA, (Technically the Beacons of all the IBSS nodes
 		        // should be identical, but that's not happening in practice.
                 pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)sFrame.pSuppRates,
                                                         (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
@@ -2722,7 +2722,7 @@ void vMgrJoinBSSBegin(void *hDeviceContext, PCMD_STATUS pStatus)
             memcpy(pDevice->abyBSSID, pCurr->abyBSSID, WLAN_BSSID_LEN);
 
             // Add current BSS to Candidate list
-            // This should only works for WPA2 BSS, and WPA2 BSS check must be done before.
+            // This should only work for WPA2 BSS, and WPA2 BSS check must be done before.
             if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2) {
 		BOOL bResult = bAdd_PMKID_Candidate((void *) pDevice,
 						    pMgmt->abyCurrBSSID,
@@ -3181,7 +3181,7 @@ s_vMgrFormatTIM(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -3353,7 +3353,7 @@ s_MgrMakeBeacon(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -3528,7 +3528,7 @@ s_MgrMakeAssocRequest(
     memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
     memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN);
 
-    // Set the capibility and listen interval
+    // Set the capability and listen interval
     *(sFrame.pwCapInfo) = cpu_to_le16(wCurrCapInfo);
     *(sFrame.pwListenInterval) = cpu_to_le16(wListenInterval);
 
@@ -3749,7 +3749,7 @@ s_MgrMakeAssocRequest(
  *
  *
  * Return Value:
- *    A ptr to frame or NULL on allocation failue
+ *    A ptr to frame or NULL on allocation failure
  *
 -*/
 
@@ -3792,7 +3792,7 @@ s_MgrMakeReAssocRequest(
     memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
     memcpy( sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN);
 
-    /* Set the capibility and listen interval */
+    /* Set the capability and listen interval */
     *(sFrame.pwCapInfo) = cpu_to_le16(wCurrCapInfo);
     *(sFrame.pwListenInterval) = cpu_to_le16(wListenInterval);
 
@@ -4004,7 +4004,7 @@ s_MgrMakeReAssocRequest(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
@@ -4077,7 +4077,7 @@ s_MgrMakeAssocResponse(
  *
  *
  * Return Value:
- *    PTR to frame; or NULL on allocation failue
+ *    PTR to frame; or NULL on allocation failure
  *
 -*/
 
diff --git a/drivers/staging/vt6656/wpa.c b/drivers/staging/vt6656/wpa.c
index b16d4ddc117..f6429a26ae0 100644
--- a/drivers/staging/vt6656/wpa.c
+++ b/drivers/staging/vt6656/wpa.c
@@ -231,7 +231,7 @@ WPA_ParseRSN(
  * Parameters:
  *  In:
  *      byCmd    - Search type
- *      byEncrypt- Encrcypt Type
+ *      byEncrypt- Encrypt Type
  *      pBSSList - BSS list
  *  Out:
  *      none
diff --git a/drivers/staging/vt6656/wpa2.c b/drivers/staging/vt6656/wpa2.c
index d4f3f7530ee..c0926976627 100644
--- a/drivers/staging/vt6656/wpa2.c
+++ b/drivers/staging/vt6656/wpa2.c
@@ -174,16 +174,16 @@ WPA2vParseRSN (
                         pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_USE_GROUP;
                         bUseGK = TRUE;
                     } else if ( !memcmp(pbyOUI, abyOUIWEP40, 4)) {
-                        // Invialid CSS, continue to parsing
+                        // Invalid CSS, continue parsing
                     } else if ( !memcmp(pbyOUI, abyOUITKIP, 4)) {
                         if (pBSSNode->byCSSGK != WLAN_11i_CSS_CCMP)
                             pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_TKIP;
                         else
-                            ; // Invialid CSS, continue to parsing
+                            ; // Invalid CSS, continue parsing
                     } else if ( !memcmp(pbyOUI, abyOUICCMP, 4)) {
                         pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_CCMP;
                     } else if ( !memcmp(pbyOUI, abyOUIWEP104, 4)) {
-                        // Invialid CSS, continue to parsing
+                        // Invalid CSS, continue parsing
                     } else {
                         // any vendor checks here
                         pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_UNKNOWN;
diff --git a/drivers/staging/vt6656/wpactl.c b/drivers/staging/vt6656/wpactl.c
index 5435e8205b2..3e65aa13201 100644
--- a/drivers/staging/vt6656/wpactl.c
+++ b/drivers/staging/vt6656/wpactl.c
@@ -74,7 +74,7 @@ static void wpadev_setup(struct net_device *dev)
 
 /*
  * Description:
- *      register netdev for wpa supplicant deamon
+ *      register netdev for wpa supplicant daemon
  *
  * Parameters:
  *  In:
@@ -154,7 +154,7 @@ static int wpa_release_wpadev(PSDevice pDevice)
 
 /*
  * Description:
- *      Set enable/disable dev for wpa supplicant deamon
+ *      Set enable/disable dev for wpa supplicant daemon
  *
  * Parameters:
  *  In:
@@ -326,7 +326,7 @@ int wpa_set_wpadev(PSDevice pDevice, int val)
 	if ((byKeyDecMode == KEY_CTL_TKIP) &&
 		(param->u.wpa_key.key_len != MAX_KEY_LEN)) {
 		// TKIP Key must be 256 bits
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "return- TKIP Key must be 256 bits!\n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "return - TKIP Key must be 256 bits!\n");
 		return -EINVAL;
     }
 	// Check AES key length
diff --git a/drivers/staging/winbond/Kconfig b/drivers/staging/winbond/Kconfig
index 132671d96d0..a29f60836b7 100644
--- a/drivers/staging/winbond/Kconfig
+++ b/drivers/staging/winbond/Kconfig
@@ -1,6 +1,6 @@
 config W35UND
 	tristate "IS89C35 WLAN USB driver"
-	depends on MAC80211 && WLAN && USB && EXPERIMENTAL
+	depends on MAC80211 && WLAN && USB
 	default n
 	---help---
 	  This is highly experimental driver for Winbond WIFI card.
diff --git a/drivers/staging/winbond/localpara.h b/drivers/staging/winbond/localpara.h
index d7980575bed..84effc47d79 100644
--- a/drivers/staging/winbond/localpara.h
+++ b/drivers/staging/winbond/localpara.h
@@ -137,7 +137,7 @@ struct wb_local_para {
 	u8	iPowerSaveMode; /* 0 indicates on, 1 indicates off */
 	u8	ATIMmode;
 	u8	ExcludeUnencrypted;
-	/* Unit ime count for the decision to enter PS mode */
+	/* Unit time count for the decision to enter PS mode */
 	u16	CheckCountForPS;
 	u8	boHasTxActivity;/* tx activity has occurred */
 	u8	boMacPsValid;	/* Power save mode obtained from H/W is valid or not */
@@ -187,7 +187,7 @@ struct wb_local_para {
 	u8	reserved7[3];
 
 	struct	chan_info CurrentChan;	/* Current channel no. and channel band. It may be changed by scanning. */
-	u8	boHandover;		/* Roaming, Hnadover to other AP. */
+	u8	boHandover;		/* Roaming, Handover to other AP. */
 	u8	boCCAbusy;
 
 	u16	CWMax;			/* It may not be the real value that H/W used */
diff --git a/drivers/staging/winbond/mds.c b/drivers/staging/winbond/mds.c
index c9f0e8f856a..1b8b8ace39e 100644
--- a/drivers/staging/winbond/mds.c
+++ b/drivers/staging/winbond/mds.c
@@ -569,7 +569,7 @@ Mds_SendComplete(struct wbsoft_priv *adapter, struct T02_descriptor *pT02)
 	unsigned char	SendOK = true;
 	u8	RetryCount, TxRate;
 
-	if (pT02->T02_IgnoreResult) /* Don't care the result */
+	if (pT02->T02_IgnoreResult) /* Don't care about the result */
 		return;
 	if (pT02->T02_IsLastMpdu) {
 		/* TODO: DTO -- get the retry count and fragment count */
diff --git a/drivers/staging/winbond/mto.c b/drivers/staging/winbond/mto.c
index 1b52ebd4b01..560c0ab617d 100644
--- a/drivers/staging/winbond/mto.c
+++ b/drivers/staging/winbond/mto.c
@@ -23,7 +23,7 @@
 #include "core.h"
 
 /* Declare SQ3 to rate and fragmentation threshold table */
-/* Declare fragmentation thresholds table */
+/* Declare fragmentation threshold table */
 #define MTO_MAX_FRAG_TH_LEVELS		5
 #define MTO_MAX_DATA_RATE_LEVELS	12
 
diff --git a/drivers/staging/winbond/phy_calibration.c b/drivers/staging/winbond/phy_calibration.c
index 77a3fff708c..cabae346670 100644
--- a/drivers/staging/winbond/phy_calibration.c
+++ b/drivers/staging/winbond/phy_calibration.c
@@ -399,7 +399,7 @@ void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequen
 	val |= MASK_ADC_DC_CAL_STR;
 	hw_set_dxx_reg(phw_data, REG_MODE_CTRL, val);
 
-	/* e. The result are shown in "adc_dc_cal_i[8:0] and adc_dc_cal_q[8:0]" */
+	/* e. The results are shown in "adc_dc_cal_i[8:0] and adc_dc_cal_q[8:0]" */
 #ifdef _DEBUG
 	hw_get_dxx_reg(phw_data, REG_OFFSET_READ, &val);
 	PHY_DEBUG(("[CAL]    REG_OFFSET_READ = 0x%08X\n", val));
@@ -720,7 +720,7 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 		for (capture_time = 0; capture_time < 10; capture_time++) {
 			/*
 			 * a. Set iqcal_mode[1:0] to 0x2 and set "calib_start" to 0x1 to
-			 *    enable "IQ alibration Mode II"
+			 *    enable "IQ calibration Mode II"
 			 */
 			reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE);
 			reg_mode_ctrl &= ~MASK_IQCAL_MODE;
@@ -750,7 +750,7 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 
 			/*
 			 * d. Set iqcal_mode[1:0] to 0x3 and set "calib_start" to 0x1 to
-			 *    enable "IQ alibration Mode II"
+			 *    enable "IQ calibration Mode II"
 			 */
 			/* hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &val); */
 			hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
@@ -980,7 +980,7 @@ void _tx_iq_calibration_winbond(struct hw_data *phw_data)
 	phy_set_rf_data(phw_data, 0, (0<<24)|0xFDF1C0);
 	/* ; [BB-chip]: Calibration (6f).Send test pattern */
 	/* ; [BB-chip]: Calibration (6g). Search RXGCL optimal value */
-	/* ; [BB-chip]: Calibration (6h). Caculate TX-path IQ imbalance and setting TX path IQ compensation table */
+	/* ; [BB-chip]: Calibration (6h). Calculate TX-path IQ imbalance and setting TX path IQ compensation table */
 	/* phy_set_rf_data(phw_data, 3, (3<<24)|0x025586); */
 
 	msleep(30); /* 20060612.1.a 30ms delay. Add the follow 2 lines */
@@ -1373,7 +1373,7 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
 /***************************************************************/
 void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency)
 {
-/* figo 20050523 marked this flag for can't compile for relesase */
+/* figo 20050523 marked this flag for can't compile for release */
 #ifdef _DEBUG
 	s32     rx_cal_reg[4];
 	u32     val;
@@ -1397,7 +1397,7 @@ void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency)
 
 	/*  ; [BB-chip]: Calibration (7f). Send test pattern */
 	/*	; [BB-chip]: Calibration (7g). Search RXGCL optimal value */
-	/*	; [BB-chip]: Calibration (7h). Caculate RX-path IQ imbalance and setting RX path IQ compensation table */
+	/*	; [BB-chip]: Calibration (7h). Calculate RX-path IQ imbalance and setting RX path IQ compensation table */
 
 	result = _rx_iq_calibration_loop_winbond(phw_data, 12589, frequency);
 
@@ -1454,7 +1454,7 @@ void phy_calibration_winbond(struct hw_data *phw_data, u32 frequency)
 
 	_rxadc_dc_offset_cancellation_winbond(phw_data, frequency);
 	/* _txidac_dc_offset_cancellation_winbond(phw_data); */
-	/* _txqdac_dc_offset_cacellation_winbond(phw_data); */
+	/* _txqdac_dc_offset_cancellation_winbond(phw_data); */
 
 	_tx_iq_calibration_winbond(phw_data);
 	_rx_iq_calibration_winbond(phw_data, frequency);
diff --git a/drivers/staging/winbond/reg.c b/drivers/staging/winbond/reg.c
index 1b38d6d225c..5ecf9a121e7 100644
--- a/drivers/staging/winbond/reg.c
+++ b/drivers/staging/winbond/reg.c
@@ -693,7 +693,7 @@ u32 w89rf242_rf_data[] = {
 	(0x0E << 24) | 0x5557DC, /* 1555F ; IBSC  (0x0E) -- IRLNA & IRLNB (PTAT & Const current)=01/01; FA5976B_1.3F */
 	(0x10 << 24) | 0x000C20, /* 00030 ; TMODA (0x10) -- LNA_gain_step=0011 ; LNA=15/16dB */
 	(0x11 << 24) | 0x0C0022, /* 03000 ; TMODB (0x11) -- Turn ON RX-Q path Test Switch; To improve IQ path group delay (FA5976A_1.3C) */
-	(0x12 << 24) | 0x000024  /* TMODC (0x12) -- Turn OFF Tempearure sensor */
+	(0x12 << 24) | 0x000024  /* TMODC (0x12) -- Turn OFF Temperature sensor */
 };
 
 u32 w89rf242_channel_data_24[][2] = {
diff --git a/drivers/staging/winbond/sme_api.h b/drivers/staging/winbond/sme_api.h
index 8f4596c9e9b..652ae7085a5 100644
--- a/drivers/staging/winbond/sme_api.h
+++ b/drivers/staging/winbond/sme_api.h
@@ -12,7 +12,6 @@
 #include "localpara.h"
 
 /****************** CONSTANT AND MACRO SECTION ******************************/
-#define _INLINE				__inline
 
 #define MEDIA_STATE_DISCONNECTED	0
 #define MEDIA_STATE_CONNECTED		1
@@ -26,17 +25,17 @@
 
 /* OID_802_11_BSSID */
 s8 sme_get_bssid(void *pcore_data, u8 *pbssid);
-s8 sme_get_desired_bssid(void *pcore_data, u8 *pbssid); /* Not use */
+s8 sme_get_desired_bssid(void *pcore_data, u8 *pbssid); /* Unused */
 s8 sme_set_desired_bssid(void *pcore_data, u8 *pbssid);
 
 /* OID_802_11_SSID */
 s8 sme_get_ssid(void *pcore_data, u8 *pssid, u8 *pssid_len);
-s8 sme_get_desired_ssid(void *pcore_data, u8 *pssid, u8 *pssid_len);/* Not use */
+s8 sme_get_desired_ssid(void *pcore_data, u8 *pssid, u8 *pssid_len);/* Unused */
 s8 sme_set_desired_ssid(void *pcore_data, u8 *pssid, u8 ssid_len);
 
 /* OID_802_11_INFRASTRUCTURE_MODE */
 s8 sme_get_bss_type(void *pcore_data, u8 *pbss_type);
-s8 sme_get_desired_bss_type(void *pcore_data, u8 *pbss_type); /* Not use */
+s8 sme_get_desired_bss_type(void *pcore_data, u8 *pbss_type); /* Unused */
 s8 sme_set_desired_bss_type(void *pcore_data, u8 bss_type);
 
 /* OID_802_11_FRAGMENTATION_THRESHOLD */
@@ -107,7 +106,7 @@ s8 sme_set_bssid_list_scan(void *pcore_data, void *pscan_para);
 s8 sme_set_reload_defaults(void *pcore_data, u8 reload_type);
 
 
-/*------------------------- none-standard ----------------------------------*/
+/*------------------------- non-standard ----------------------------------*/
 s8 sme_get_connect_status(void *pcore_data, u8 *pstatus);
 /*--------------------------------------------------------------------------*/
 
@@ -138,7 +137,7 @@ s8 sme_set_txrate_policy(void *pcore_data, u8 policy);
 s8 sme_get_txrate_policy(void *pcore_data, u8 *policy);
 s8 sme_get_cwmin_value(void *pcore_data, u8 *cwmin);
 s8 sme_get_cwmax_value(void *pcore_data, u16 *cwmax);
-s8 sme_get_ms_radio_mode(void *pcore_data, u8 * pMsRadioOff);
+s8 sme_get_ms_radio_mode(void *pcore_data, u8 *pMsRadioOff);
 s8 sme_set_ms_radio_mode(void *pcore_data, u8 boMsRadioOff);
 
 void sme_get_tx_power_level(void *pcore_data, u32 *TxPower);
diff --git a/drivers/staging/winbond/wb35reg.c b/drivers/staging/winbond/wb35reg.c
index da595f16f63..1bff7d1c9a7 100644
--- a/drivers/staging/winbond/wb35reg.c
+++ b/drivers/staging/winbond/wb35reg.c
@@ -217,7 +217,7 @@ unsigned char Wb35Reg_Write(struct hw_data *pHwData, u16 RegisterNo, u32 Registe
  * This command will be executed with a user defined value. When it completes,
  * this value is useful. For example, hal_set_current_channel will use it.
  * true  : read command process successfully
- * false : register not support
+ * false : register not supported
  */
 unsigned char Wb35Reg_WriteWithCallbackValue(struct hw_data *pHwData,
 						u16 RegisterNo,
@@ -631,7 +631,7 @@ unsigned char Wb35Reg_initial(struct hw_data *pHwData)
  *  CardComputeCrc --
  *
  *  Description:
- *    Runs the AUTODIN II CRC algorithm on buffer Buffer of length, Length.
+ *    Runs the AUTODIN II CRC algorithm on the buffers Buffer length.
  *
  *  Arguments:
  *    Buffer - the input buffer
diff --git a/drivers/staging/winbond/wb35tx.c b/drivers/staging/winbond/wb35tx.c
index 5df39d46cda..30a77ccfe48 100644
--- a/drivers/staging/winbond/wb35tx.c
+++ b/drivers/staging/winbond/wb35tx.c
@@ -1,13 +1,13 @@
-//============================================================================
-//  Copyright (c) 1996-2002 Winbond Electronic Corporation
-//
-//  Module Name:
-//    Wb35Tx.c
-//
-//  Abstract:
-//    Processing the Tx message and put into down layer
-//
-//============================================================================
+/*
+ *  Copyright (c) 1996-2002 Winbond Electronic Corporation
+ *
+ *  Module Name:
+ *    Wb35Tx.c
+ *
+ *  Abstract:
+ *    Processing the Tx message and put into down layer
+ *
+ */
 #include <linux/usb.h>
 #include <linux/gfp.h>
 
@@ -15,7 +15,7 @@
 #include "mds_f.h"
 
 unsigned char
-Wb35Tx_get_tx_buffer(struct hw_data * pHwData, u8 **pBuffer)
+Wb35Tx_get_tx_buffer(struct hw_data *pHwData, u8 **pBuffer)
 {
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 
@@ -25,28 +25,29 @@ Wb35Tx_get_tx_buffer(struct hw_data * pHwData, u8 **pBuffer)
 
 static void Wb35Tx(struct wbsoft_priv *adapter);
 
-static void Wb35Tx_complete(struct urb * pUrb)
+static void Wb35Tx_complete(struct urb *pUrb)
 {
 	struct wbsoft_priv *adapter = pUrb->context;
-	struct hw_data *	pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 	struct wb35_mds *pMds = &adapter->Mds;
 
 	printk("wb35: tx complete\n");
-	// Variable setting
+	/* Variable setting */
 	pWb35Tx->EP4vm_state = VM_COMPLETED;
-	pWb35Tx->EP4VM_status = pUrb->status; //Store the last result of Irp
-	pMds->TxOwner[ pWb35Tx->TxSendIndex ] = 0;// Set the owner. Free the owner bit always.
+	pWb35Tx->EP4VM_status = pUrb->status; /* Store the last result of Irp */
+	/* Set the owner. Free the owner bit always. */
+	pMds->TxOwner[pWb35Tx->TxSendIndex] = 0;
 	pWb35Tx->TxSendIndex++;
 	pWb35Tx->TxSendIndex %= MAX_USB_TX_BUFFER_NUMBER;
 
-	if (pHwData->SurpriseRemove) // Let WbWlanHalt to handle surprise remove
+	if (pHwData->SurpriseRemove) /* Let WbWlanHalt handle surprise remove */
 		goto error;
 
 	if (pWb35Tx->tx_halt)
 		goto error;
 
-	// The URB is completed, check the result
+	/* The URB is completed, check the result */
 	if (pWb35Tx->EP4VM_status != 0) {
 		printk("URB submission failed\n");
 		pWb35Tx->EP4vm_state = VM_STOP;
@@ -64,43 +65,42 @@ error:
 
 static void Wb35Tx(struct wbsoft_priv *adapter)
 {
-	struct hw_data *	pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 	u8		*pTxBufferAddress;
 	struct wb35_mds *pMds = &adapter->Mds;
-	struct urb *	pUrb = (struct urb *)pWb35Tx->Tx4Urb;
-	int         	retv;
+	struct urb *pUrb = (struct urb *)pWb35Tx->Tx4Urb;
+	int		retv;
 	u32		SendIndex;
 
-
 	if (pHwData->SurpriseRemove)
 		goto cleanup;
 
 	if (pWb35Tx->tx_halt)
 		goto cleanup;
 
-	// Ownership checking
+	/* Ownership checking */
 	SendIndex = pWb35Tx->TxSendIndex;
-	if (!pMds->TxOwner[SendIndex]) //No more data need to be sent, return immediately
+	/* No more data need to be sent, return immediately */
+	if (!pMds->TxOwner[SendIndex])
 		goto cleanup;
 
 	pTxBufferAddress = pWb35Tx->TxBuffer[SendIndex];
-	//
-	// Issuing URB
-	//
+
+	/* Issuing URB */
 	usb_fill_bulk_urb(pUrb, pHwData->udev,
 			  usb_sndbulkpipe(pHwData->udev, 4),
-			  pTxBufferAddress, pMds->TxBufferSize[ SendIndex ],
+			  pTxBufferAddress, pMds->TxBufferSize[SendIndex],
 			  Wb35Tx_complete, adapter);
 
 	pWb35Tx->EP4vm_state = VM_RUNNING;
 	retv = usb_submit_urb(pUrb, GFP_ATOMIC);
-	if (retv<0) {
+	if (retv < 0) {
 		printk("EP4 Tx Irp sending error\n");
 		goto cleanup;
 	}
 
-	// Check if driver needs issue Irp for EP2
+	/* Check if driver needs issue Irp for EP2 */
 	pWb35Tx->TxFillCount += pMds->TxCountInBuffer[SendIndex];
 	if (pWb35Tx->TxFillCount > 12)
 		Wb35Tx_EP2VM_start(adapter);
@@ -115,10 +115,10 @@ static void Wb35Tx(struct wbsoft_priv *adapter)
 
 void Wb35Tx_start(struct wbsoft_priv *adapter)
 {
-	struct hw_data * pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 
-	// Allow only one thread to run into function
+	/* Allow only one thread to run into function */
 	if (atomic_inc_return(&pWb35Tx->TxFireCounter) == 1) {
 		pWb35Tx->EP4vm_state = VM_RUNNING;
 		Wb35Tx(adapter);
@@ -126,7 +126,7 @@ void Wb35Tx_start(struct wbsoft_priv *adapter)
 		atomic_dec(&pWb35Tx->TxFireCounter);
 }
 
-unsigned char Wb35Tx_initial(struct hw_data * pHwData)
+unsigned char Wb35Tx_initial(struct hw_data *pHwData)
 {
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 
@@ -135,54 +135,50 @@ unsigned char Wb35Tx_initial(struct hw_data * pHwData)
 		return false;
 
 	pWb35Tx->Tx2Urb = usb_alloc_urb(0, GFP_ATOMIC);
-	if (!pWb35Tx->Tx2Urb)
-	{
-		usb_free_urb( pWb35Tx->Tx4Urb );
+	if (!pWb35Tx->Tx2Urb) {
+		usb_free_urb(pWb35Tx->Tx4Urb);
 		return false;
 	}
 
 	return true;
 }
 
-//======================================================
-void Wb35Tx_stop(struct hw_data * pHwData)
+void Wb35Tx_stop(struct hw_data *pHwData)
 {
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 
-	// Trying to canceling the Trp of EP2
+	/* Try to cancel the Trp of EP2 */
 	if (pWb35Tx->EP2vm_state == VM_RUNNING)
-		usb_unlink_urb( pWb35Tx->Tx2Urb ); // Only use unlink, let Wb35Tx_destrot to free them
+		/* Only use unlink, let Wb35Tx_destroy free them */
+		usb_unlink_urb(pWb35Tx->Tx2Urb);
 	pr_debug("EP2 Tx stop\n");
 
-	// Trying to canceling the Irp of EP4
+	/* Try to cancel the Irp of EP4 */
 	if (pWb35Tx->EP4vm_state == VM_RUNNING)
-		usb_unlink_urb( pWb35Tx->Tx4Urb ); // Only use unlink, let Wb35Tx_destrot to free them
+		/* Only use unlink, let Wb35Tx_destroy free them */
+		usb_unlink_urb(pWb35Tx->Tx4Urb);
 	pr_debug("EP4 Tx stop\n");
 }
 
-//======================================================
-void Wb35Tx_destroy(struct hw_data * pHwData)
+void Wb35Tx_destroy(struct hw_data *pHwData)
 {
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 
-	// Wait for VM stop
+	/* Wait for VM stop */
 	do {
-		msleep(10);  // Delay for waiting function enter 940623.1.a
-	} while( (pWb35Tx->EP2vm_state != VM_STOP) && (pWb35Tx->EP4vm_state != VM_STOP) );
-	msleep(10);  // Delay for waiting function enter 940623.1.b
-
-	if (pWb35Tx->Tx4Urb)
-		usb_free_urb( pWb35Tx->Tx4Urb );
+		msleep(10); /* Delay for waiting function enter 940623.1.a */
+	} while ((pWb35Tx->EP2vm_state != VM_STOP) && (pWb35Tx->EP4vm_state != VM_STOP));
+	msleep(10); /* Delay for waiting function enter 940623.1.b */
 
-	if (pWb35Tx->Tx2Urb)
-		usb_free_urb( pWb35Tx->Tx2Urb );
+	usb_free_urb(pWb35Tx->Tx4Urb);
+	usb_free_urb(pWb35Tx->Tx2Urb);
 
 	pr_debug("Wb35Tx_destroy OK\n");
 }
 
 void Wb35Tx_CurrentTime(struct wbsoft_priv *adapter, u32 TimeCount)
 {
-	struct hw_data * pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 	unsigned char Trigger = false;
 
@@ -199,46 +195,45 @@ void Wb35Tx_CurrentTime(struct wbsoft_priv *adapter, u32 TimeCount)
 
 static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter);
 
-static void Wb35Tx_EP2VM_complete(struct urb * pUrb)
+static void Wb35Tx_EP2VM_complete(struct urb *pUrb)
 {
 	struct wbsoft_priv *adapter = pUrb->context;
-	struct hw_data *	pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct T02_descriptor	T02, TSTATUS;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
-	u32 *		pltmp = (u32 *)pWb35Tx->EP2_buf;
+	u32 *pltmp = (u32 *)pWb35Tx->EP2_buf;
 	u32		i;
 	u16		InterruptInLength;
 
-
-	// Variable setting
+	/* Variable setting */
 	pWb35Tx->EP2vm_state = VM_COMPLETED;
 	pWb35Tx->EP2VM_status = pUrb->status;
 
-	// For Linux 2.4. Interrupt will always trigger
-	if (pHwData->SurpriseRemove) // Let WbWlanHalt to handle surprise remove
+	/* For Linux 2.4. Interrupt will always trigger */
+	if (pHwData->SurpriseRemove) /* Let WbWlanHalt handle surprise remove */
 		goto error;
 
 	if (pWb35Tx->tx_halt)
 		goto error;
 
-	//The Urb is completed, check the result
+	/* The Urb is completed, check the result */
 	if (pWb35Tx->EP2VM_status != 0) {
 		printk("EP2 IoCompleteRoutine return error\n");
-		pWb35Tx->EP2vm_state= VM_STOP;
+		pWb35Tx->EP2vm_state = VM_STOP;
 		goto error;
 	}
 
-	// Update the Tx result
+	/* Update the Tx result */
 	InterruptInLength = pUrb->actual_length;
-	// Modify for minimum memory access and DWORD alignment.
-	T02.value = cpu_to_le32(pltmp[0]) >> 8; // [31:8] -> [24:0]
-	InterruptInLength -= 1;// 20051221.1.c Modify the follow for more stable
-	InterruptInLength >>= 2; // InterruptInLength/4
+	/* Modify for minimum memory access and DWORD alignment. */
+	T02.value = cpu_to_le32(pltmp[0]) >> 8; /* [31:8] -> [24:0] */
+	InterruptInLength -= 1; /* 20051221.1.c Modify the follow for more stable */
+	InterruptInLength >>= 2; /* InterruptInLength/4 */
 	for (i = 1; i <= InterruptInLength; i++) {
 		T02.value |= ((cpu_to_le32(pltmp[i]) & 0xff) << 24);
 
-		TSTATUS.value = T02.value;  //20061009 anson's endian
-		Mds_SendComplete( adapter, &TSTATUS );
+		TSTATUS.value = T02.value;  /* 20061009 anson's endian */
+		Mds_SendComplete(adapter, &TSTATUS);
 		T02.value = cpu_to_le32(pltmp[i]) >> 8;
 	}
 
@@ -250,10 +245,10 @@ error:
 
 static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter)
 {
-	struct hw_data *	pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
-	struct urb *	pUrb = (struct urb *)pWb35Tx->Tx2Urb;
-	u32 *	pltmp = (u32 *)pWb35Tx->EP2_buf;
+	struct urb *pUrb = (struct urb *)pWb35Tx->Tx2Urb;
+	u32 *pltmp = (u32 *)pWb35Tx->EP2_buf;
 	int		retv;
 
 	if (pHwData->SurpriseRemove)
@@ -262,11 +257,10 @@ static void Wb35Tx_EP2VM(struct wbsoft_priv *adapter)
 	if (pWb35Tx->tx_halt)
 		goto error;
 
-	//
-	// Issuing URB
-	//
-	usb_fill_int_urb( pUrb, pHwData->udev, usb_rcvintpipe(pHwData->udev,2),
-			  pltmp, MAX_INTERRUPT_LENGTH, Wb35Tx_EP2VM_complete, adapter, 32);
+	/* Issuing URB */
+	usb_fill_int_urb(pUrb, pHwData->udev, usb_rcvintpipe(pHwData->udev, 2),
+			 pltmp, MAX_INTERRUPT_LENGTH, Wb35Tx_EP2VM_complete,
+			 adapter, 32);
 
 	pWb35Tx->EP2vm_state = VM_RUNNING;
 	retv = usb_submit_urb(pUrb, GFP_ATOMIC);
@@ -284,10 +278,10 @@ error:
 
 void Wb35Tx_EP2VM_start(struct wbsoft_priv *adapter)
 {
-	struct hw_data * pHwData = &adapter->sHwData;
+	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
 
-	// Allow only one thread to run into function
+	/* Allow only one thread to run into function */
 	if (atomic_inc_return(&pWb35Tx->TxResultCount) == 1) {
 		pWb35Tx->EP2vm_state = VM_RUNNING;
 		Wb35Tx_EP2VM(adapter);
diff --git a/drivers/staging/winbond/wb35tx_s.h b/drivers/staging/winbond/wb35tx_s.h
index f70f4339559..715f87d6ac5 100644
--- a/drivers/staging/winbond/wb35tx_s.h
+++ b/drivers/staging/winbond/wb35tx_s.h
@@ -3,45 +3,37 @@
 
 #include "mds_s.h"
 
-//====================================
-// IS89C35 Tx related definition
-//====================================
-#define TX_INTERFACE			0	// Interface 1
-#define TX_PIPE					3	// endpoint 4
-#define TX_INTERRUPT			1	// endpoint 2
-#define MAX_INTERRUPT_LENGTH	64	// It must be 64 for EP2 hardware
-
-
-
-//====================================
-// Internal variable for module
-//====================================
-
+/* IS89C35 Tx related definition */
+#define TX_INTERFACE		0	/* Interface 1 */
+#define TX_PIPE			3	/* Endpoint 4 */
+#define TX_INTERRUPT		1	/* Endpoint 2 */
+#define MAX_INTERRUPT_LENGTH	64	/* It must be 64 for EP2 hardware */
 
+/* Internal variable for module */
 struct wb35_tx {
-	// For Tx buffer
+	/* For Tx buffer */
 	u8	TxBuffer[ MAX_USB_TX_BUFFER_NUMBER ][ MAX_USB_TX_BUFFER ];
 
-	// For Interrupt pipe
+	/* For Interrupt pipe */
 	u8	EP2_buf[MAX_INTERRUPT_LENGTH];
 
-	atomic_t	TxResultCount;// For thread control of EP2 931130.4.m
-	atomic_t	TxFireCounter;// For thread control of EP4 931130.4.n
-	u32			ByteTransfer;
+	atomic_t	TxResultCount; /* For thread control of EP2 931130.4.m */
+	atomic_t	TxFireCounter; /* For thread control of EP4 931130.4.n */
+	u32		ByteTransfer;
 
-	u32	    TxSendIndex;// The next index of Mds array to be sent
-	u32	    EP2vm_state; // for EP2vm state
-	u32	    EP4vm_state; // for EP4vm state
-	u32	    tx_halt; // Stopping VM
+	u32	TxSendIndex; /* The next index of Mds array to be sent */
+	u32	EP2vm_state; /* for EP2vm state */
+	u32	EP4vm_state; /* for EP4vm state */
+	u32	tx_halt; /* Stopping VM */
 
-	struct urb *				Tx4Urb;
-	struct urb *				Tx2Urb;
+	struct urb	*Tx4Urb;
+	struct urb	*Tx2Urb;
 
 	int		EP2VM_status;
 	int		EP4VM_status;
 
-	u32	TxFillCount; // 20060928
-	u32	TxTimer; // 20060928 Add if sending packet not great than 13
+	u32	TxFillCount; /* 20060928 */
+	u32	TxTimer; /* 20060928 Add if sending packet is greater than 13 */
 };
 
 #endif
diff --git a/drivers/staging/winbond/wbusb.c b/drivers/staging/winbond/wbusb.c
index ef360547ece..48aa1361903 100644
--- a/drivers/staging/winbond/wbusb.c
+++ b/drivers/staging/winbond/wbusb.c
@@ -25,7 +25,7 @@ MODULE_DESCRIPTION("IS89C35 802.11bg WLAN USB Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("0.1");
 
-static const struct usb_device_id wb35_table[] __devinitconst = {
+static const struct usb_device_id wb35_table[] = {
 	{ USB_DEVICE(0x0416, 0x0035) },
 	{ USB_DEVICE(0x18E8, 0x6201) },
 	{ USB_DEVICE(0x18E8, 0x6206) },
@@ -119,7 +119,9 @@ static void wbsoft_configure_filter(struct ieee80211_hw *dev,
 	*total_flags = new_flags;
 }
 
-static void wbsoft_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
+static void wbsoft_tx(struct ieee80211_hw *dev,
+		      struct ieee80211_tx_control *control,
+		      struct sk_buff *skb)
 {
 	struct wbsoft_priv *priv = dev->priv;
 
diff --git a/drivers/staging/wlags49_h2/README.ubuntu b/drivers/staging/wlags49_h2/README.ubuntu
index 5f1cfb8fd42..bfad7dc7725 100644
--- a/drivers/staging/wlags49_h2/README.ubuntu
+++ b/drivers/staging/wlags49_h2/README.ubuntu
@@ -46,12 +46,12 @@ If you have a card using the HERMES II.5 chip you have to make
 changes to the Makefile and uncomment -DHERMES25. This will build
 driver wlags49_h25_cs.
 
-Note: You can detemine the type with command "pccardctrl info"
+Note: You can determine the type with command "pccardctrl info"
         MANIFID: 0156,0002 = HERMES - not supported by this driver
         MANIFID: 0156,0003 = HERMES II   (Wireless B)
         MANIFID: 0156,0004 = HERMES II.5 (Wireless B/G)
 
-After succesfull compile type command
+After successful compile type command
 
 sudo make install
 
@@ -81,7 +81,7 @@ The linux driver files (wl_xxxx.c) are changed in the following ways:
 - Addaptations of Andrey Borzenkov applied to 7.22 source
 - Alterations to avoid most HCF_ASSERTs
 -- Switching interrupts off and on in the HCF
--- Bugfixes, things that were aparently wrong like reporting link status
+-- Bugfixes, things that were apparently wrong like reporting link status
    change which checked a variable that was not changed in HCF anymore.
 -- Used on WEP but setting keys via SIOCSIWENCODEEXT was not supported
 -- Recovery actions added
@@ -93,7 +93,7 @@ have to "open" the device first to get a handle and after "close" no
 changed; the former ioctl functions are now called before "open" and
 after "close", which was not expected. One of the problems was enable/
 disable of interrupts in the HCF. Interrupt handling starts at "open"
-so if a former "ioctl" routinge is called before "open" or after "close"
+so if a former "ioctl" routine is called before "open" or after "close"
 then nothing should be done with interrupt switching in the HCF. Once
 this was solved most HCF_ASSERTS went away.
 
@@ -120,8 +120,8 @@ include the man page. Even though setting parameters on the module
 does not work anymore but it provides some information about all the
 settings.
 
-I have not have personal contact with Agere, but others have. Agere
-agreed to make their software available under the BSD licence.
+I have no personal contact with Agere, but others have. Agere
+agreed to make their software available under the BSD license.
 This driver is based on the 7.22 version.
 
 The following was mailed by Agere to Andrey Borzenkov about this:
diff --git a/drivers/staging/wlags49_h2/TODO b/drivers/staging/wlags49_h2/TODO
index 94032b6ac2b..f1a45611b23 100644
--- a/drivers/staging/wlags49_h2/TODO
+++ b/drivers/staging/wlags49_h2/TODO
@@ -1,4 +1,4 @@
-First of all, the best thing would be that this driver becomes obsolte by
+First of all, the best thing would be that this driver becomes obsolete by
 adding support for Hermes II and Hermes II.5 cards to the existing orinoco
 driver. The orinoco driver currently only supports Hermes I based cards.
 Since this will not happen by magic and has not happened until now this
@@ -10,11 +10,11 @@ list.
 
 TODO:
 	- verify against a Hermes II.5 card
-	- verify with WPA encription (both with H2 and H2.5 cards)
+	- verify with WPA encryption (both with H2 and H2.5 cards)
 	- sometimes the card does not initialize correctly, retry mechanisms
-	  are build in to catch most cases but not all
+	  are built in to catch most cases but not all
 	- once the driver runs it is very stable, but I have the impression
-	  some the crittical sections take to long
+	  that some of the critical sections take some time.
 	- the driver is split into a Hermes II and a Hermes II.5 part, it
 	  would be nice to handle both with one module instead of two
 	- review by the wireless developer community
@@ -25,7 +25,7 @@ TODO:
 DONE:
 	- verified against a Hermes II card (Thomson Speedtouch 110 PCMCIA
 	  card)
-	- verified with WEP encription
+	- verified with WEP encryption
 
 Please send any patches or complaints about this driver to Greg
 Kroah-Hartman <greg@kroah.com> and Cc: Henk de Groot <pe1dnn@amsat.org>
diff --git a/drivers/staging/wlags49_h2/hcf.c b/drivers/staging/wlags49_h2/hcf.c
index 423544634ae..4aac26d486f 100644
--- a/drivers/staging/wlags49_h2/hcf.c
+++ b/drivers/staging/wlags49_h2/hcf.c
@@ -508,7 +508,7 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
  *    - HCF_ACT_INT_FORCE_ON enable interrupt generation by WaveLAN NIC
  *    - HCF_ACT_INT_OFF      disable interrupt generation by WaveLAN NIC
  *    - HCF_ACT_INT_ON       compensate 1 HCF_ACT_INT_OFF, enable interrupt generation if balance reached
- *    - HCF_ACT_PRS_SCAN     Hermes Probe Respons Scan (F102) command
+ *    - HCF_ACT_PRS_SCAN     Hermes Probe Response Scan (F102) command
  *    - HCF_ACT_RX_ACK       acknowledge non-DMA receiver to Hermes
  *    - HCF_ACT_SCAN         Hermes Inquire Scan (F101) command (non-WARP only)
  *    - HCF_ACT_SLEEP        DDS Sleep request
@@ -571,7 +571,7 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
  * The F/W is wokenup by the HCF when the NIC Interrupts mode are disabled, i.e. at the first HCF_ACT_INT_OFF
  * after going into sleep.
  *
- * The following Miscellanuous actions are defined:
+ * The following Miscellaneous actions are defined:
  *
  * o HCF_ACT_RX_ACK: Receiver Acknowledgement (non-DMA, non-USB mode only)
  * Acking the receiver, frees the NIC memory used to hold the Rx frame and allows the F/W to
@@ -579,7 +579,7 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
  * If the MSF does not need access (any longer) to the current frame, e.g. because it is rejected based on the
  * look ahead or copied to another buffer, the receiver may be acked. Acking earlier is assumed to have the
  * potential of improving the performance.
- * If the MSF does not explitly ack te receiver, the acking is done implicitly if:
+ * If the MSF does not explicitly ack the receiver, the acking is done implicitly if:
  * - the received frame fits in the look ahead buffer, by the hcf_service_nic call that reported the Rx frame
  * - if not in the above step, by hcf_rcv_msg (assuming hcf_rcv_msg is called)
  * - if neither of the above implicit acks nor an explicit ack by the MSF, by the first hcf_service_nic after
@@ -591,9 +591,9 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
  * The Inquire Tallies command requests the F/W to provide its current set of tallies.
  * See also hcf_get_info with CFG_TALLIES as parameter.
  *
- * o HCF_ACT_PRS_SCAN: Inquire Probe Respons Scan command
+ * o HCF_ACT_PRS_SCAN: Inquire Probe Response Scan command
  * This command is only operational if the F/W is enabled.
- * The Probe Respons Scan command starts a scan sequence.
+ * The Probe Response Scan command starts a scan sequence.
  * The HCF puts the result of this action in an MSF defined buffer (see CFG_RID_LOG_STRCT).
  *
  * o HCF_ACT_SCAN: Inquire Scan command
@@ -606,7 +606,7 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
  * - NIC interrupts are not disabled while required by parameter action.
  * - an invalid code is specified in parameter action.
  * - HCF_ACT_INT_ON commands outnumber the HCF_ACT_INT_OFF commands.
- * - reentrancy, may be  caused by calling hcf_functions without adequate protection against NIC interrupts or
+ * - reentrancy, may be caused by calling hcf_functions without adequate protection against NIC interrupts or
  *   multi-threading
  *
  * - Since the HCF does not maintain status information relative to the F/W enabled state, it is not asserted
@@ -625,7 +625,7 @@ HCF_STATIC hcf_16* BASED xxxx[ ] = {
  *   change in HREG_EV_STAT matching a bit in HREG_INT_EN, i.e. not if invoked as result of another device
  *   generating an interrupt on the shared interrupt line.
  *   Note 1: it has been observed that under certain adverse conditions on certain platforms the writing of
- *   HREG_INT_EN can apparently fail, therefor it is paramount that HREG_INT_EN is written again with 0 for
+ *   HREG_INT_EN can apparently fail, therefore it is paramount that HREG_INT_EN is written again with 0 for
  *   each and every call to HCF_ACT_INT_OFF.
  *   Note 2: it has been observed that under certain H/W & S/W architectures this logic is called when there is
  *   no NIC at all. To cater for this, the value of HREG_INT_EN is validated. If the unused bit 0x0100 is set,
@@ -902,7 +902,7 @@ hcf_action( IFBP ifbp, hcf_16 action )
  * - A command other than Continue, Enable, Disable, Connect or Disconnect is given.
  * - An invalid combination of the subfields is given or a bit outside the subfields is given.
  * - any return code besides HCF_SUCCESS.
- * - reentrancy, may be  caused by calling a hcf_function without adequate protection against NIC interrupts or
+ * - reentrancy, may be caused by calling a hcf_function without adequate protection against NIC interrupts or
  *   multi-threading
  *
  *.DIAGRAM
@@ -1030,7 +1030,7 @@ hcf_cntl( IFBP ifbp, hcf_16 cmd )
  * hcf_connect passes the MSF-defined location of the IFB to the HCF and grants or revokes access right for the
  * HCF to the IFB. Revoking is done by specifying HCF_DISCONNECT rather than an I/O address for the parameter
  * io_base.  Every call of hcf_connect in "connect" mode, must eventually be followed by a call of hcf_connect
- * in "disconnect" mode. Clalling hcf_connect in "connect"/"disconnect" mode can not be nested.
+ * in "disconnect" mode. Calling hcf_connect in "connect"/"disconnect" mode can not be nested.
  * The IFB address must be used as a handle with all subsequent HCF-function calls and the HCF uses the IFB
  * address as a handle when it performs a call(back) of an MSF-function (i.e. msf_assert).
  *
@@ -1058,7 +1058,7 @@ hcf_cntl( IFBP ifbp, hcf_16 cmd )
  *   specification for S/W reset
  *   Note 2: it turns out that on some H/W constellations, the clock to access the EEProm is not lowered
  *   to an appropriate frequency by HREG_IO_SRESET. By giving an HCMD_INI first, this problem is worked around.
- *2b: Experimentally it is determined over a wide range of F/W versions that waiting for the for Cmd bit in
+ *2b: Experimentally it is determined over a wide range of F/W versions that are waiting for the for Cmd bit in
  *   Ev register gives a workable strategy. The available documentation does not give much clues.
  *4: clear and initialize the IFB
  *   The HCF house keeping info is designed such that zero is the appropriate initial value for as much as
diff --git a/drivers/staging/wlags49_h2/hcfcfg.h b/drivers/staging/wlags49_h2/hcfcfg.h
index 39fb4d326f6..869b5c343a8 100644
--- a/drivers/staging/wlags49_h2/hcfcfg.h
+++ b/drivers/staging/wlags49_h2/hcfcfg.h
@@ -21,7 +21,7 @@
 * hcfcfg.tpl list all #defines which must be specified to:
 *   adjust the HCF functions defined in HCF.C to the characteristics of a specific environment
 *		o maximum sizes for messages
-*		o Endianess
+*		o Endianness
 *	Compiler specific macros
 *		o port I/O macros
 *		o type definitions
diff --git a/drivers/staging/wlags49_h2/hcfdef.h b/drivers/staging/wlags49_h2/hcfdef.h
index 30744e194a2..74c0f713c57 100644
--- a/drivers/staging/wlags49_h2/hcfdef.h
+++ b/drivers/staging/wlags49_h2/hcfdef.h
@@ -652,15 +652,15 @@ err: you used an invalid bitmask;
 #if 0 //get compiler going
 #if HCF_EX_INT_TICK != HREG_EV_TICK
 ;? out dated checking
-err: someone redefined these macros while the implemenation assumes they are equal;
+err: someone redefined these macros while the implementation assumes they are equal;
 #endif
 #if HCF_EX_INT_TX_OK != HFS_TX_CNTL_TX_OK || HFS_TX_CNTL_TX_OK != HREG_EV_TX_OK
 ;? out dated checking
-err: someone redefined these macros while the implemenation assumes they are equal;
+err: someone redefined these macros while the implementation assumes they are equal;
 #endif
 #if HCF_EX_INT_TX_EX != HFS_TX_CNTL_TX_EX || HFS_TX_CNTL_TX_EX != HREG_EV_TX_EX
 ;? out dated checking
-err: someone redefined these macros while the implemenation assumes they are equal;
+err: someone redefined these macros while the implementation assumes they are equal;
 #endif
 #endif // 0 get compiler going
 
diff --git a/drivers/staging/wlags49_h2/mdd.h b/drivers/staging/wlags49_h2/mdd.h
index 5c3515f31a1..0c914971c1e 100644
--- a/drivers/staging/wlags49_h2/mdd.h
+++ b/drivers/staging/wlags49_h2/mdd.h
@@ -652,7 +652,7 @@ XX1( CFG_SCAN,					SCAN_RS_STRCT, scan_result[32]		 ) /*Scan results											*
 #define CFG_CNF_WDS_ADDR6				0xFC16		//[AP] Port 6 MAC Adrs of corresponding WDS Link node
 #define CFG_CNF_PM_MCAST_BUF			0xFC17		//[AP] Switch for PM buffereing of Multicast Messages
 #define CFG_CNF_MCAST_PM_BUF			CFG_CNF_PM_MCAST_BUF	//name does not match H-II spec
-#define CFG_CNF_REJECT_ANY				0xFC18		//[AP] Switch for PM buffereing of Multicast Messages
+#define CFG_CNF_REJECT_ANY				0xFC18		//[AP] Switch for PM buffering of Multicast Messages
 
 #define CFG_CNF_ENCRYPTION				0xFC20		//select en/de-cryption of Tx/Rx messages
 #define CFG_CNF_AUTHENTICATION			0xFC21		//[STA] selects Authentication algorithm
@@ -844,13 +844,13 @@ XX1( CFG_SCAN,					SCAN_RS_STRCT, scan_result[32]		 ) /*Scan results											*
 
 
 #define HCF_SUCCESS					0x00	// OK
-#define HCF_ERR_TIME_OUT			0x04	// Expected Hermes event did not occure in expected time
+#define HCF_ERR_TIME_OUT			0x04	// Expected Hermes event did not occur in expected time
 #define HCF_ERR_NO_NIC				0x05	/* card not found (usually yanked away during hcfio_in_string
 										  	 * Also: card is either absent or disabled while it should be neither */
 #define HCF_ERR_LEN					0x08	/* buffer size insufficient
 		 								  	 *		  -	IFB_ConfigTable too small
 		 								  	 *		  -	hcf_get_info buffer has a size of 0 or 1 or less than needed
-		 							  		 *			to accomodate all data
+		 							  		 *			to accommodate all data
 		 							  		 *		  -	hcf_put_info: CFG_DLNV_DATA exceeds intermediate
 											 *		  buffer size */
 #define HCF_ERR_INCOMP_PRI			0x09	// primary functions are not compatible
@@ -1004,7 +1004,7 @@ XX1( CFG_SCAN,					SCAN_RS_STRCT, scan_result[32]		 ) /*Scan results											*
 #define CFG_CURRENT_LINK_STATUS			0x090B		//Latest link status got through 0xF200 LinkEvent
 
 /*============================================================ INFORMATION FRAMES =========================*/
-#define CFG_INFO_FRAME_MIN				0xF000		//lowest value representing an Informatio Frame
+#define CFG_INFO_FRAME_MIN				0xF000		//lowest value representing an Information Frame
 
 #define CFG_TALLIES						0xF100		//Communications Tallies
 #define CFG_SCAN						0xF101		//Scan results
diff --git a/drivers/staging/wlags49_h2/sta_h2.c b/drivers/staging/wlags49_h2/sta_h2.c
index f9a38523724..00dffe2ed8f 100644
--- a/drivers/staging/wlags49_h2/sta_h2.c
+++ b/drivers/staging/wlags49_h2/sta_h2.c
@@ -26,7 +26,7 @@
 
 
 #include "hcfcfg.h"				// to get hcf_16 etc defined as well as
-                                // possible settings which inluence mdd.h or dhf.h
+                                // possible settings which influence mdd.h or dhf.h
 #include "mdd.h"   				//to get COMP_ID_STA etc defined
 #include "dhf.h"   				//used to be "fhfmem.h", to get memblock,plugrecord,
 
diff --git a/drivers/staging/wlags49_h2/sta_h25.c b/drivers/staging/wlags49_h2/sta_h25.c
index 86ca1cdd849..5b6f670d8ef 100644
--- a/drivers/staging/wlags49_h2/sta_h25.c
+++ b/drivers/staging/wlags49_h2/sta_h25.c
@@ -25,7 +25,7 @@
 
 
 #include "hcfcfg.h"				// to get hcf_16 etc defined as well as
-                                // possible settings which inluence mdd.h or dhf.h
+                                // possible settings which influence mdd.h or dhf.h
 #include "mdd.h"   				//to get COMP_ID_STA etc defined
 #include "dhf.h"   				//used to be "fhfmem.h", to get memblock,plugrecord,
 
diff --git a/drivers/staging/wlags49_h2/wl_enc.h b/drivers/staging/wlags49_h2/wl_enc.h
index 46629f3b112..1804611276b 100644
--- a/drivers/staging/wlags49_h2/wl_enc.h
+++ b/drivers/staging/wlags49_h2/wl_enc.h
@@ -106,7 +106,7 @@ ENCSTRCT, *PENCSTRCT;
 
 
 /*******************************************************************************
- * function prrottypes
+ * function prototypes
  ******************************************************************************/
 int wl_wep_code( char *szCrypt, char *szDest, void *Data, int nLen );
 
diff --git a/drivers/staging/wlags49_h2/wl_if.h b/drivers/staging/wlags49_h2/wl_if.h
index 6a26130f5a3..6d66dabf032 100644
--- a/drivers/staging/wlags49_h2/wl_if.h
+++ b/drivers/staging/wlags49_h2/wl_if.h
@@ -95,7 +95,7 @@
 //              Manufacture ID: 0156,0003
 // Lowest measurment for noise floor seen is value 54
 // Highest signal strength in close proximity to the AP seen is value 118
-// Very good must be arround 100 (otherwise its never "full scale"
+// Very good must be around 100 (otherwise its never "full scale"
 // All other constants are derrived from these. This makes the signal gauge
 // work for me...
 #define HCF_MIN_SIGNAL_LEVEL        54
diff --git a/drivers/staging/wlags49_h2/wl_internal.h b/drivers/staging/wlags49_h2/wl_internal.h
index 553601f4887..b2307816414 100644
--- a/drivers/staging/wlags49_h2/wl_internal.h
+++ b/drivers/staging/wlags49_h2/wl_internal.h
@@ -11,7 +11,7 @@
  *
  *------------------------------------------------------------------------------
  *
- *   Header for defintions and macros internal to the drvier.
+ *   Header for definitions and macros internal to the drvier.
  *
  *------------------------------------------------------------------------------
  *
@@ -838,7 +838,7 @@ typedef struct dma_strct
 	DESC_STRCT  *rx_packet[NUM_RX_DESC];
 	DESC_STRCT  *rx_reclaim_desc, *tx_reclaim_desc; // Descriptors for host-reclaim purposes (see HCF)
 	int         tx_rsc_ind; // DMA Tx resource indicator is maintained in the MSF, not in the HCF
-	int         rx_rsc_ind; // Also added rx rsource indicator so that cleanup can be performed if alloc fails
+	int         rx_rsc_ind; // Also added rx resource indicator so that cleanup can be performed if alloc fails
 	int         status;
 } DMA_STRCT;
 
diff --git a/drivers/staging/wlags49_h2/wl_main.c b/drivers/staging/wlags49_h2/wl_main.c
index 20410782957..f5f120a6246 100644
--- a/drivers/staging/wlags49_h2/wl_main.c
+++ b/drivers/staging/wlags49_h2/wl_main.c
@@ -63,7 +63,7 @@
  *  constant definitions
  ******************************************************************************/
 
-/* Allow support for calling system fcns to access F/W iamge file */
+/* Allow support for calling system fcns to access F/W image file */
 #define __KERNEL_SYSCALLS__
 
 /*******************************************************************************
@@ -128,7 +128,7 @@
 #include <wl_pci.h>
 #endif  /* BUS_PCI */
 /*******************************************************************************
- *	macro defintions
+ *	macro definitions
  ******************************************************************************/
 #define VALID_PARAM(C) \
 	{ \
@@ -1163,7 +1163,7 @@ int 			rc;
 				CNV_INT_TO_LITTLE( lp->hcfCtx.IFB_FWIdentity.version_major ),
 				CNV_INT_TO_LITTLE( lp->hcfCtx.IFB_FWIdentity.version_minor ));
 
-	/* now we wil get the MAC address of the card */
+	/* now we will get the MAC address of the card */
 	lp->ltvRecord.len = 4;
 	if ( CNV_INT_TO_LITTLE( lp->hcfCtx.IFB_FWIdentity.comp_id ) == COMP_ID_FW_AP  ) {
 		lp->ltvRecord.typ = CFG_NIC_MAC_ADDR;
@@ -1374,7 +1374,7 @@ int wl_put_ltv_init( struct wl_private *lp )
 	lp->ltvRecord.len = 2;
 	lp->ltvRecord.typ = CFG_CNTL_OPT;
 
-	/* The Card Services build must ALWAYS configure for 16-bit I/O. PCI or
+	/* The Card Services build must ALWAYS be configured for 16-bit I/O. PCI or
 	   CardBus can be set to either 16/32 bit I/O, or Bus Master DMA, but only
 	   for Hermes-2.5 */
 #ifdef BUS_PCMCIA
@@ -1627,7 +1627,7 @@ int wl_put_ltv( struct wl_private *lp )
 		lp->ltvRecord.u.u16[0]  = CNV_INT_TO_LITTLE( lp->TxRateControl[0] );
 #endif  // WARP
 
-//;?skip temporarily to see whether the RID or something else is the probelm hcf_status = hcf_put_info( &lp->hcfCtx, (LTVP)&( lp->ltvRecord ));
+//;?skip temporarily to see whether the RID or something else is the problem hcf_status = hcf_put_info( &lp->hcfCtx, (LTVP)&( lp->ltvRecord ));
 
 		DBG_TRACE( DbgInfo, "CFG_TX_RATE_CNTL 2.4GHz           : 0x%04x\n",
 				   lp->TxRateControl[0] );
@@ -2474,7 +2474,7 @@ void wl_resume(struct net_device *dev)
  *
  *  DESCRIPTION:
  *
- *      This function perfroms a check on the device and calls wl_remove() if
+ *      This function performs a check on the device and calls wl_remove() if
  *  necessary. This function can be used for all bus types, but exists mostly
  *  for the benefit of the Card Services driver, as there are times when
  *  wl_remove() does not get called.
@@ -2596,7 +2596,7 @@ int wl_enable( struct wl_private *lp )
 			lp->portState = WVLAN_PORT_STATE_ENABLED;   //;?bad mnemonic, NIC iso PORT
 #ifdef ENABLE_DMA
 			if ( lp->use_dma ) {
-				wl_pci_dma_hcf_supply( lp );  //;?always succes?
+				wl_pci_dma_hcf_supply( lp );  //;?always successful?
 			}
 #endif
 		}
@@ -2874,7 +2874,7 @@ int wl_mbx( struct wl_private *lp )
  *  DESCRIPTION:
  *
  *      This function will perform the tedious task of endian translating all
- *  fields withtin a mailbox message which need translating.
+ *  fields within a mailbox message which need translating.
  *
  *  PARAMETERS:
  *
@@ -2989,7 +2989,7 @@ void wl_endian_translate_mailbox( ltv_t *ltv )
  *
  *  DESCRIPTION:
  *
- *      This function will process the mailbox data.
+ *      This function processes the mailbox data.
  *
  *  PARAMETERS:
  *
diff --git a/drivers/staging/wlags49_h2/wl_netdev.c b/drivers/staging/wlags49_h2/wl_netdev.c
index 824b8523235..fb421407e10 100644
--- a/drivers/staging/wlags49_h2/wl_netdev.c
+++ b/drivers/staging/wlags49_h2/wl_netdev.c
@@ -652,7 +652,6 @@ void wl_tx_timeout( struct net_device *dev )
     wl_unlock( lp, &flags );
 
     DBG_LEAVE( DbgInfo );
-    return;
 } // wl_tx_timeout
 /*============================================================================*/
 
@@ -836,8 +835,7 @@ int wl_tx( struct sk_buff *skb, struct net_device *dev, int port )
         txF->frame.port = port;
         /* Move the frame to the txQ */
         /* NOTE: Here's where we would do priority queueing */
-        list_del( &( txF->node ));
-        list_add( &( txF->node ), &( lp->txQ[0] ));
+        list_move(&(txF->node), &(lp->txQ[0]));
 
         lp->txQ_count++;
         if( lp->txQ_count >= DEFAULT_NUM_TX_FRAMES ) {
@@ -1252,7 +1250,7 @@ struct net_device * wl_device_alloc( void )
 
     netif_stop_queue( dev );
 
-    /* Allocate virutal devices for WDS support if needed */
+    /* Allocate virtual devices for WDS support if needed */
     WL_WDS_DEVICE_ALLOC( lp );
 
     DBG_LEAVE( DbgInfo );
@@ -1292,7 +1290,6 @@ void wl_device_dealloc( struct net_device *dev )
     free_netdev( dev );
 
     DBG_LEAVE( DbgInfo );
-    return;
 } // wl_device_dealloc
 /*============================================================================*/
 
@@ -1547,7 +1544,6 @@ void wl_wds_device_alloc( struct wl_private *lp )
     WL_WDS_NETIF_STOP_QUEUE( lp );
 
     DBG_LEAVE( DbgInfo );
-    return;
 } // wl_wds_device_alloc
 /*============================================================================*/
 
@@ -1593,7 +1589,6 @@ void wl_wds_device_dealloc( struct wl_private *lp )
     }
 
     DBG_LEAVE( DbgInfo );
-    return;
 } // wl_wds_device_dealloc
 /*============================================================================*/
 
@@ -1604,7 +1599,7 @@ void wl_wds_device_dealloc( struct wl_private *lp )
  *  DESCRIPTION:
  *
  *      Used to start the netif queues of all the "virtual" network devices
- *      which repesent the WDS ports.
+ *      which represent the WDS ports.
  *
  *  PARAMETERS:
  *
@@ -1629,8 +1624,6 @@ void wl_wds_netif_start_queue( struct wl_private *lp )
             }
         }
     }
-
-    return;
 } // wl_wds_netif_start_queue
 /*============================================================================*/
 
@@ -1641,7 +1634,7 @@ void wl_wds_netif_start_queue( struct wl_private *lp )
  *  DESCRIPTION:
  *
  *      Used to stop the netif queues of all the "virtual" network devices
- *      which repesent the WDS ports.
+ *      which represent the WDS ports.
  *
  *  PARAMETERS:
  *
@@ -1666,8 +1659,6 @@ void wl_wds_netif_stop_queue( struct wl_private *lp )
             }
         }
     }
-
-    return;
 } // wl_wds_netif_stop_queue
 /*============================================================================*/
 
@@ -1678,7 +1669,7 @@ void wl_wds_netif_stop_queue( struct wl_private *lp )
  *  DESCRIPTION:
  *
  *      Used to wake the netif queues of all the "virtual" network devices
- *      which repesent the WDS ports.
+ *      which represent the WDS ports.
  *
  *  PARAMETERS:
  *
@@ -1703,8 +1694,6 @@ void wl_wds_netif_wake_queue( struct wl_private *lp )
             }
         }
     }
-
-    return;
 } // wl_wds_netif_wake_queue
 /*============================================================================*/
 
@@ -1715,7 +1704,7 @@ void wl_wds_netif_wake_queue( struct wl_private *lp )
  *  DESCRIPTION:
  *
  *      Used to signal the network layer that carrier is present on all of the
- *      "virtual" network devices which repesent the WDS ports.
+ *      "virtual" network devices which represent the WDS ports.
  *
  *  PARAMETERS:
  *
@@ -1738,8 +1727,6 @@ void wl_wds_netif_carrier_on( struct wl_private *lp )
             }
         }
     }
-
-    return;
 } // wl_wds_netif_carrier_on
 /*============================================================================*/
 
@@ -1750,7 +1737,7 @@ void wl_wds_netif_carrier_on( struct wl_private *lp )
  *  DESCRIPTION:
  *
  *      Used to signal the network layer that carrier is NOT present on all of
- *      the "virtual" network devices which repesent the WDS ports.
+ *      the "virtual" network devices which represent the WDS ports.
  *
  *  PARAMETERS:
  *
@@ -1763,18 +1750,15 @@ void wl_wds_netif_carrier_on( struct wl_private *lp )
  ******************************************************************************/
 void wl_wds_netif_carrier_off( struct wl_private *lp )
 {
-    int count;
-    /*------------------------------------------------------------------------*/
+	int count;
 
-    if( lp != NULL ) {
-        for( count = 0; count < NUM_WDS_PORTS; count++ ) {
-            if( lp->wds_port[count].is_registered ) {
-                netif_carrier_off( lp->wds_port[count].dev );
-            }
-        }
-    }
+	if(lp != NULL) {
+		for(count = 0; count < NUM_WDS_PORTS; count++) {
+			if(lp->wds_port[count].is_registered)
+				netif_carrier_off(lp->wds_port[count].dev);
+		}
+	}
 
-    return;
 } // wl_wds_netif_carrier_off
 /*============================================================================*/
 
@@ -1810,22 +1794,19 @@ int wl_send_dma( struct wl_private *lp, struct sk_buff *skb, int port )
 
     DBG_FUNC( "wl_send_dma" );
 
-    if( lp == NULL )
-    {
+    if( lp == NULL ) {
         DBG_ERROR( DbgInfo, "Private adapter struct is NULL\n" );
         return FALSE;
     }
 
-    if( lp->dev == NULL )
-    {
+    if( lp->dev == NULL ) {
         DBG_ERROR( DbgInfo, "net_device struct in wl_private is NULL\n" );
         return FALSE;
     }
 
     /* AGAIN, ALL THE QUEUEING DONE HERE IN I/O MODE IS NOT PERFORMED */
 
-    if( skb == NULL )
-    {
+    if( skb == NULL ) {
         DBG_WARNING (DbgInfo, "Nothing to send.\n");
         return FALSE;
     }
@@ -1835,8 +1816,7 @@ int wl_send_dma( struct wl_private *lp, struct sk_buff *skb, int port )
     /* Get a free descriptor */
     desc = wl_pci_dma_get_tx_packet( lp );
 
-    if( desc == NULL )
-    {
+    if( desc == NULL ) {
         if( lp->netif_queue_on == TRUE ) {
             netif_stop_queue( lp->dev );
             WL_WDS_NETIF_STOP_QUEUE( lp );
@@ -1852,8 +1832,7 @@ int wl_send_dma( struct wl_private *lp, struct sk_buff *skb, int port )
 
     desc_next = desc->next_desc_addr;
 
-    if( desc_next->buf_addr == NULL )
-    {
+    if( desc_next->buf_addr == NULL ) {
         DBG_ERROR( DbgInfo, "DMA descriptor buf_addr is NULL\n" );
         return FALSE;
     }
diff --git a/drivers/staging/wlags49_h2/wl_pci.c b/drivers/staging/wlags49_h2/wl_pci.c
index 0b31b01bd49..a09c3ac793a 100644
--- a/drivers/staging/wlags49_h2/wl_pci.c
+++ b/drivers/staging/wlags49_h2/wl_pci.c
@@ -223,7 +223,7 @@ int wl_adapter_init_module( void )
  ******************************************************************************/
 void wl_adapter_cleanup_module( void )
 {
-	//;?how comes wl_adapter_cleanup_module is located in a seemingly pci specific module
+	//;?how come wl_adapter_cleanup_module is located in a seemingly pci specific module
     DBG_FUNC( "wl_adapter_cleanup_module" );
     DBG_ENTER( DbgInfo );
 
@@ -385,7 +385,7 @@ int wl_adapter_is_open( struct net_device *dev )
  *  DESCRIPTION:
  *
  *      Registered in the pci_driver structure, this function is called when the
- *  PCI subsystem finds a new PCI device which matches the infomation contained
+ *  PCI subsystem finds a new PCI device which matches the information contained
  *  in the pci_device_id table.
  *
  *  PARAMETERS:
@@ -424,7 +424,7 @@ int __devinit wl_pci_probe( struct pci_dev *pdev,
  *  DESCRIPTION:
  *
  *      Registered in the pci_driver structure, this function is called when the
- *  PCI subsystem detects that a PCI device which matches the infomation
+ *  PCI subsystem detects that a PCI device which matches the information
  *  contained in the pci_device_id table has been removed.
  *
  *  PARAMETERS:
@@ -899,7 +899,7 @@ int wl_pci_dma_free_tx_packet( struct pci_dev *pdev, struct wl_private *lp,
  *  DESCRIPTION:
  *
  *      Allocates a single Rx packet, consisting of two descriptors and one
- *      contiguous buffer. THe buffer starts with the hermes-specific header.
+ *      contiguous buffer. The buffer starts with the hermes-specific header.
  *      One descriptor points at the start, the other at offset 0x3a of the
  *      buffer.
  *
diff --git a/drivers/staging/wlags49_h2/wl_priv.c b/drivers/staging/wlags49_h2/wl_priv.c
index f30e5ee4bca..87e1e412312 100644
--- a/drivers/staging/wlags49_h2/wl_priv.c
+++ b/drivers/staging/wlags49_h2/wl_priv.c
@@ -225,7 +225,7 @@ int wvlan_uil_connect( struct uilreq *urq, struct wl_private *lp )
  *
  *  DESCRIPTION:
  *
- *      Disonnect from the UIL after a request has been completed.
+ *      Disconnect from the UIL after a request has been completed.
  *
  *  PARAMETERS:
  *
diff --git a/drivers/staging/wlags49_h2/wl_profile.c b/drivers/staging/wlags49_h2/wl_profile.c
index 0e49272bc7a..beabf5916df 100644
--- a/drivers/staging/wlags49_h2/wl_profile.c
+++ b/drivers/staging/wlags49_h2/wl_profile.c
@@ -910,7 +910,7 @@ int parse_mac_address(char *value, u_char *byte_array)
 	memset(byte_field, '\0', 3);
 
 	while (value[value_offset] != '\0') {
-		/* Skip over the colon chars seperating the bytes, if they exist */
+		/* Skip over the colon chars separating the bytes, if they exist */
 		if (value[value_offset] == ':') {
 			value_offset++;
 			continue;
diff --git a/drivers/staging/wlags49_h2/wl_version.h b/drivers/staging/wlags49_h2/wl_version.h
index 3deacfac9d2..037b5266428 100644
--- a/drivers/staging/wlags49_h2/wl_version.h
+++ b/drivers/staging/wlags49_h2/wl_version.h
@@ -152,7 +152,7 @@ err: define bus type;
 
 
 /*******************************************************************************
- *  bus architechture specific defines, includes, etc.
+ *  bus architecture specific defines, includes, etc.
  ******************************************************************************/
 /*
  * There doesn't seem to be a difference for PCMCIA and PCI anymore, at least
diff --git a/drivers/staging/wlags49_h2/wl_wext.c b/drivers/staging/wlags49_h2/wl_wext.c
index 7ff0a108da1..f553366cccc 100644
--- a/drivers/staging/wlags49_h2/wl_wext.c
+++ b/drivers/staging/wlags49_h2/wl_wext.c
@@ -62,6 +62,7 @@
 #include <linux/if_arp.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
+#include <linux/etherdevice.h>
 #include <asm/uaccess.h>
 
 #include <debug.h>
@@ -173,7 +174,7 @@ static int hermes_clear_tkip_keys(ltv_t *ltv, u16 key_idx, u8 *addr)
 
 	switch (key_idx) {
 	case 0:
-		if (memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0) {
+		if (!is_broadcast_ether_addr(addr)) {
 			ltv->len = 7;
 			ltv->typ = CFG_REMOVE_TKIP_MAPPED_KEY;
 			memcpy(&ltv->u.u8[0], addr, ETH_ALEN);
@@ -605,7 +606,7 @@ retry:
 		if (retries < 10) {
 			retries++;
 
-			/* Holding the lock too long, make a gap to allow other processes */
+			/* Holding the lock too long, makes a gap to allow other processes */
 			wl_unlock(lp, &flags);
 			wl_lock( lp, &flags );
 
@@ -617,7 +618,7 @@ retry:
 				goto out_unlock;
 			}
 
-			/* Holding the lock too long, make a gap to allow other processes */
+			/* Holding the lock too long, makes a gap to allow other processes */
 			wl_unlock(lp, &flags);
 			wl_lock( lp, &flags );
 
@@ -630,7 +631,7 @@ retry:
 		}
 	}
 
-	/* Holding the lock too long, make a gap to allow other processes */
+	/* Holding the lock too long, makes a gap to allow other processes */
 	wl_unlock(lp, &flags);
 	wl_lock( lp, &flags );
 
@@ -693,7 +694,7 @@ retry:
 
 	/* Encryption */
 
-	/* Holding the lock too long, make a gap to allow other processes */
+	/* Holding the lock too long, makes a gap to allow other processes */
 	wl_unlock(lp, &flags);
 	wl_lock( lp, &flags );
 
@@ -720,7 +721,7 @@ retry:
 
 	// Retry Limits and Lifetime - NOT SUPPORTED
 
-	/* Holding the lock too long, make a gap to allow other processes */
+	/* Holding the lock too long, makes a gap to allow other processes */
 	wl_unlock(lp, &flags);
 	wl_lock( lp, &flags );
 
@@ -2595,7 +2596,7 @@ static int wireless_set_scan(struct net_device *dev, struct iw_request_info *inf
 	int		    retries = 0;
 	/*------------------------------------------------------------------------*/
 
-	//;? Note: shows results as trace, retruns always 0 unless BUSY
+	//;? Note: shows results as trace, returns always 0 unless BUSY
 
 	DBG_FUNC( "wireless_set_scan" );
 	DBG_ENTER( DbgInfo );
@@ -2645,7 +2646,7 @@ retry:
 
 	DBG_TRACE( DbgInfo, "CFG_SCAN_CHANNEL result      : 0x%x\n", status );
 
-	// Holding the lock too long, make a gap to allow other processes
+	// Holding the lock too long, makes a gap to allow other processes
 	wl_unlock(lp, &flags);
 	wl_lock( lp, &flags );
 
@@ -2656,7 +2657,7 @@ retry:
 			DBG_TRACE( DbgInfo, "Reset card to recover, attempt: %d\n", retries );
 			wl_reset( dev );
 
-			// Holding the lock too long, make a gap to allow other processes
+			// Holding the lock too long, makes a gap to allow other processes
 			wl_unlock(lp, &flags);
 			wl_lock( lp, &flags );
 
@@ -2673,7 +2674,7 @@ retry:
 
 	status = hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord ));
 
-	// Holding the lock too long, make a gap to allow other processes
+	// Holding the lock too long, makes a gap to allow other processes
 	wl_unlock(lp, &flags);
 	wl_lock( lp, &flags );
 
@@ -2681,7 +2682,7 @@ retry:
 
 	/* Initiate the scan */
 	/* NOTE: Using HCF_ACT_SCAN has been removed, as using HCF_ACT_ACS_SCAN to
-	   retrieve probe responses must always be used to support WPA */
+	   retrieve probe response must always be used to support WPA */
 	status = hcf_action( &( lp->hcfCtx ), HCF_ACT_ACS_SCAN );
 
 	if( status == HCF_SUCCESS ) {
@@ -3054,7 +3055,7 @@ static void flush_tx(struct wl_private *lp)
 	 * Make sure that there is no data queued up in the firmware
 	 * before setting the TKIP keys. If this check is not
 	 * performed, some data may be sent out with incorrect MIC
-	 * and cause synchronizarion errors with the AP
+	 * and cause synchronization errors with the AP
 	 */
 	/* Check every 1ms for 100ms */
 	for (count = 0; count < 100; count++) {
@@ -3654,7 +3655,7 @@ void wl_wext_event_ap( struct net_device *dev )
 	   this event BEFORE sending the association event, as there are timing
 	   issues with the hostap supplicant. The supplicant will attempt to process
 	   an EAPOL-Key frame from an AP before receiving this information, which
-	   is required properly process the said frame. */
+	   is required for a proper processed frame. */
 	wl_wext_event_assoc_ie( dev );
 
 	/* Get the BSSID */
diff --git a/drivers/staging/wlags49_h25/Kconfig b/drivers/staging/wlags49_h25/Kconfig
index bf5664a51cd..dd8dc4d62c6 100644
--- a/drivers/staging/wlags49_h25/Kconfig
+++ b/drivers/staging/wlags49_h25/Kconfig
@@ -8,4 +8,4 @@ config WLAGS49_H25
 	Driver for wireless cards using Agere's HERMES II.5 chipset
 	which are identified with Manufacture ID: 0156,0004
 	The software is a modified version of wl_lkm_722_abg.tar.gz
-	from the Agere Systems website, addapted for Ubuntu 9.04.
+	from the Agere Systems website, adapted for Ubuntu 9.04.
diff --git a/drivers/staging/wlags49_h25/TODO b/drivers/staging/wlags49_h25/TODO
index 94032b6ac2b..ec71ad3245e 100644
--- a/drivers/staging/wlags49_h25/TODO
+++ b/drivers/staging/wlags49_h25/TODO
@@ -1,4 +1,4 @@
-First of all, the best thing would be that this driver becomes obsolte by
+First of all, the best thing would be that this driver becomes obsolete by
 adding support for Hermes II and Hermes II.5 cards to the existing orinoco
 driver. The orinoco driver currently only supports Hermes I based cards.
 Since this will not happen by magic and has not happened until now this
@@ -10,11 +10,11 @@ list.
 
 TODO:
 	- verify against a Hermes II.5 card
-	- verify with WPA encription (both with H2 and H2.5 cards)
+	- verify with WPA encryption (both with H2 and H2.5 cards)
 	- sometimes the card does not initialize correctly, retry mechanisms
 	  are build in to catch most cases but not all
 	- once the driver runs it is very stable, but I have the impression
-	  some the crittical sections take to long
+	  some the critical sections take to long
 	- the driver is split into a Hermes II and a Hermes II.5 part, it
 	  would be nice to handle both with one module instead of two
 	- review by the wireless developer community
@@ -25,7 +25,7 @@ TODO:
 DONE:
 	- verified against a Hermes II card (Thomson Speedtouch 110 PCMCIA
 	  card)
-	- verified with WEP encription
+	- verified with WEP encryption
 
 Please send any patches or complaints about this driver to Greg
 Kroah-Hartman <greg@kroah.com> and Cc: Henk de Groot <pe1dnn@amsat.org>
diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
index fabff4d650e..18c06a59c09 100644
--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -1,7 +1,7 @@
 /* cfg80211 Interface for prism2_usb module */
 
 
-/* Prism2 channell/frequency/bitrate declarations */
+/* Prism2 channel/frequency/bitrate declarations */
 static const struct ieee80211_channel prism2_channels[] = {
 	{ .center_freq = 2412 },
 	{ .center_freq = 2417 },
@@ -327,11 +327,11 @@ int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
 	return result;
 }
 
-int prism2_scan(struct wiphy *wiphy, struct net_device *dev,
-		struct cfg80211_scan_request *request)
+int prism2_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 {
+	struct net_device *dev;
 	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
-	wlandevice_t *wlandev = dev->ml_priv;
+	wlandevice_t *wlandev;
 	struct p80211msg_dot11req_scan msg1;
 	struct p80211msg_dot11req_scan_results msg2;
 	struct cfg80211_bss *bss;
@@ -345,6 +345,9 @@ int prism2_scan(struct wiphy *wiphy, struct net_device *dev,
 	if (!request)
 		return -EINVAL;
 
+	dev = request->wdev->netdev;
+	wlandev = dev->ml_priv;
+
 	if (priv->scan_request && priv->scan_request != request)
 		return -EBUSY;
 
@@ -499,7 +502,7 @@ int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
 			goto exit;
 	}
 
-	/* Set the authorisation */
+	/* Set the authorization */
 	if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
 		((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
 			msg_join.authtype.data = P80211ENUM_authalg_opensystem;
diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index 7843dfdaa3c..f180c3d8b01 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -2140,11 +2140,7 @@ exit_proc:
 ----------------------------------------------------------------*/
 int hfa384x_drvr_getconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len)
 {
-	int result;
-
-	result = hfa384x_dorrid_wait(hw, rid, buf, len);
-
-	return result;
+	return hfa384x_dorrid_wait(hw, rid, buf, len);
 }
 
 /*----------------------------------------------------------------
@@ -3790,7 +3786,7 @@ static void hfa384x_ctlxout_callback(struct urb *urb)
 #endif
 	if ((urb->status == -ESHUTDOWN) ||
 	    (urb->status == -ENODEV) || (hw == NULL))
-		goto done;
+		return;
 
 retry:
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
@@ -3803,7 +3799,7 @@ retry:
 	 */
 	if (list_empty(&hw->ctlxq.active)) {
 		spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
-		goto done;
+		return;
 	}
 
 	/*
@@ -3886,9 +3882,6 @@ delresp:
 
 	if (run_queue)
 		hfa384x_usbctlxq_run(hw);
-
-done:
-	;
 }
 
 /*----------------------------------------------------------------
@@ -3985,15 +3978,10 @@ static void hfa384x_usbctlx_resptimerfn(unsigned long data)
 		if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0) {
 			spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
 			hfa384x_usbctlxq_run(hw);
-			goto done;
+			return;
 		}
 	}
-
 	spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
-
-done:
-	;
-
 }
 
 /*----------------------------------------------------------------
@@ -4057,23 +4045,20 @@ static void hfa384x_usb_throttlefn(unsigned long data)
 static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
 {
 	unsigned long flags;
-	int ret;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
 
 	if (hw->wlandev->hwremoved) {
 		spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
-		ret = -ENODEV;
-	} else {
-		ctlx->state = CTLX_PENDING;
-		list_add_tail(&ctlx->list, &hw->ctlxq.pending);
-
-		spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
-		hfa384x_usbctlxq_run(hw);
-		ret = 0;
+		return -ENODEV;
 	}
 
-	return ret;
+	ctlx->state = CTLX_PENDING;
+	list_add_tail(&ctlx->list, &hw->ctlxq.pending);
+	spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
+	hfa384x_usbctlxq_run(hw);
+
+	return 0;
 }
 
 /*----------------------------------------------------------------
diff --git a/drivers/staging/wlan-ng/p80211conv.c b/drivers/staging/wlan-ng/p80211conv.c
index f53a27a2e3f..3df753b51e8 100644
--- a/drivers/staging/wlan-ng/p80211conv.c
+++ b/drivers/staging/wlan-ng/p80211conv.c
@@ -559,17 +559,17 @@ void p80211skb_rxmeta_detach(struct sk_buff *skb)
 	/* Sanity checks */
 	if (skb == NULL) {	/* bad skb */
 		pr_debug("Called w/ null skb.\n");
-		goto exit;
+		return;
 	}
 	frmmeta = P80211SKB_FRMMETA(skb);
 	if (frmmeta == NULL) {	/* no magic */
 		pr_debug("Called w/ bad frmmeta magic.\n");
-		goto exit;
+		return;
 	}
 	rxmeta = frmmeta->rx;
 	if (rxmeta == NULL) {	/* bad meta ptr */
 		pr_debug("Called w/ bad rxmeta ptr.\n");
-		goto exit;
+		return;
 	}
 
 	/* Free rxmeta */
@@ -577,8 +577,6 @@ void p80211skb_rxmeta_detach(struct sk_buff *skb)
 
 	/* Clear skb->cb */
 	memset(skb->cb, 0, sizeof(skb->cb));
-exit:
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -660,5 +658,4 @@ void p80211skb_free(struct wlandevice *wlandev, struct sk_buff *skb)
 	else
 		printk(KERN_ERR "Freeing an skb (%p) w/ no frmmeta.\n", skb);
 	dev_kfree_skb(skb);
-	return;
 }
diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c
index 0f51b4ab363..750330f064f 100644
--- a/drivers/staging/wlan-ng/p80211netdev.c
+++ b/drivers/staging/wlan-ng/p80211netdev.c
@@ -240,10 +240,7 @@ void p80211netdev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
 {
 	/* Enqueue for post-irq processing */
 	skb_queue_tail(&wlandev->nsd_rxq, skb);
-
 	tasklet_schedule(&wlandev->rx_bh);
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -464,7 +461,7 @@ failed:
 /*----------------------------------------------------------------
 * p80211knetdev_set_multicast_list
 *
-* Called from higher lavers whenever there's a need to set/clear
+* Called from higher layers whenever there's a need to set/clear
 * promiscuous mode or rewrite the multicast list.
 *
 * Arguments:
@@ -644,7 +641,7 @@ static int p80211knetdev_set_mac_address(netdevice_t *dev, void *addr)
 	p80211item_unk392_t *mibattr;
 	p80211item_pstr6_t *macaddr;
 	p80211item_uint32_t *resultcode;
-	int result = 0;
+	int result;
 
 	/* If we're running, we don't allow MAC address changes */
 	if (netif_running(dev))
@@ -806,15 +803,13 @@ int wlan_setup(wlandevice_t *wlandev, struct device *physdev)
 * Arguments:
 *	wlandev		ptr to the wlandev structure for the
 *			interface.
-* Returns:
-*	zero on success, non-zero otherwise.
 * Call Context:
 *	Should be process thread.  We'll assume it might be
 *	interrupt though.  When we add support for statically
 *	compiled drivers, this function will be called in the
 *	context of the kernel startup code.
 ----------------------------------------------------------------*/
-int wlan_unsetup(wlandevice_t *wlandev)
+void wlan_unsetup(wlandevice_t *wlandev)
 {
 	struct wireless_dev *wdev;
 
@@ -827,8 +822,6 @@ int wlan_unsetup(wlandevice_t *wlandev)
 		free_netdev(wlandev->netdev);
 		wlandev->netdev = NULL;
 	}
-
-	return 0;
 }
 
 /*----------------------------------------------------------------
@@ -852,13 +845,7 @@ int wlan_unsetup(wlandevice_t *wlandev)
 ----------------------------------------------------------------*/
 int register_wlandev(wlandevice_t *wlandev)
 {
-	int i = 0;
-
-	i = register_netdev(wlandev->netdev);
-	if (i)
-		return i;
-
-	return 0;
+	return register_netdev(wlandev->netdev);
 }
 
 /*----------------------------------------------------------------
diff --git a/drivers/staging/wlan-ng/p80211netdev.h b/drivers/staging/wlan-ng/p80211netdev.h
index 85884176b66..2fecca2302f 100644
--- a/drivers/staging/wlan-ng/p80211netdev.h
+++ b/drivers/staging/wlan-ng/p80211netdev.h
@@ -235,7 +235,7 @@ int wep_encrypt(wlandevice_t *wlandev, u8 *buf, u8 *dst, u32 len, int keynum,
 		u8 *iv, u8 *icv);
 
 int wlan_setup(wlandevice_t *wlandev, struct device *physdev);
-int wlan_unsetup(wlandevice_t *wlandev);
+void wlan_unsetup(wlandevice_t *wlandev);
 int register_wlandev(wlandevice_t *wlandev);
 int unregister_wlandev(wlandevice_t *wlandev);
 void p80211netdev_rx(wlandevice_t *wlandev, struct sk_buff *skb);
diff --git a/drivers/staging/wlan-ng/p80211req.c b/drivers/staging/wlan-ng/p80211req.c
index 179194e7d2a..cdfd808d685 100644
--- a/drivers/staging/wlan-ng/p80211req.c
+++ b/drivers/staging/wlan-ng/p80211req.c
@@ -73,7 +73,7 @@
 #include "p80211req.h"
 
 static void p80211req_handlemsg(wlandevice_t *wlandev, struct p80211msg *msg);
-static int p80211req_mibset_mibget(wlandevice_t *wlandev,
+static void p80211req_mibset_mibget(wlandevice_t *wlandev,
 				   struct p80211msg_dot11req_mibget *mib_msg,
 				   int isget);
 
@@ -155,32 +155,29 @@ static void p80211req_handlemsg(wlandevice_t *wlandev, struct p80211msg *msg)
 	switch (msg->msgcode) {
 
 	case DIDmsg_lnxreq_hostwep:{
-			struct p80211msg_lnxreq_hostwep *req =
-			    (struct p80211msg_lnxreq_hostwep *) msg;
-			wlandev->hostwep &=
-			    ~(HOSTWEP_DECRYPT | HOSTWEP_ENCRYPT);
-			if (req->decrypt.data == P80211ENUM_truth_true)
-				wlandev->hostwep |= HOSTWEP_DECRYPT;
-			if (req->encrypt.data == P80211ENUM_truth_true)
-				wlandev->hostwep |= HOSTWEP_ENCRYPT;
-
-			break;
-		}
+		struct p80211msg_lnxreq_hostwep *req =
+			(struct p80211msg_lnxreq_hostwep *) msg;
+		wlandev->hostwep &=
+				~(HOSTWEP_DECRYPT | HOSTWEP_ENCRYPT);
+		if (req->decrypt.data == P80211ENUM_truth_true)
+			wlandev->hostwep |= HOSTWEP_DECRYPT;
+		if (req->encrypt.data == P80211ENUM_truth_true)
+			wlandev->hostwep |= HOSTWEP_ENCRYPT;
+
+	break;
+	}
 	case DIDmsg_dot11req_mibget:
 	case DIDmsg_dot11req_mibset:{
-			int isget = (msg->msgcode == DIDmsg_dot11req_mibget);
-			struct p80211msg_dot11req_mibget *mib_msg =
-			    (struct p80211msg_dot11req_mibget *) msg;
-			p80211req_mibset_mibget(wlandev, mib_msg, isget);
-		}
-	default:
-		;
+		int isget = (msg->msgcode == DIDmsg_dot11req_mibget);
+		struct p80211msg_dot11req_mibget *mib_msg =
+			(struct p80211msg_dot11req_mibget *) msg;
+		p80211req_mibset_mibget(wlandev, mib_msg, isget);
+	break;
+	}
 	}			/* switch msg->msgcode */
-
-	return;
 }
 
-static int p80211req_mibset_mibget(wlandevice_t *wlandev,
+static void p80211req_mibset_mibget(wlandevice_t *wlandev,
 				   struct p80211msg_dot11req_mibget *mib_msg,
 				   int isget)
 {
@@ -190,76 +187,65 @@ static int p80211req_mibset_mibget(wlandevice_t *wlandev,
 
 	switch (mibitem->did) {
 	case DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0:{
-			if (!isget)
-				wep_change_key(wlandev, 0, key, pstr->len);
-			break;
-		}
+		if (!isget)
+			wep_change_key(wlandev, 0, key, pstr->len);
+	break;
+	}
 	case DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1:{
-			if (!isget)
-				wep_change_key(wlandev, 1, key, pstr->len);
-			break;
-		}
+		if (!isget)
+			wep_change_key(wlandev, 1, key, pstr->len);
+	break;
+	}
 	case DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2:{
-			if (!isget)
-				wep_change_key(wlandev, 2, key, pstr->len);
-			break;
-		}
+		if (!isget)
+			wep_change_key(wlandev, 2, key, pstr->len);
+	break;
+	}
 	case DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3:{
-			if (!isget)
-				wep_change_key(wlandev, 3, key, pstr->len);
-			break;
-		}
+		if (!isget)
+			wep_change_key(wlandev, 3, key, pstr->len);
+	break;
+	}
 	case DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID:{
-			u32 *data = (u32 *) mibitem->data;
+		u32 *data = (u32 *) mibitem->data;
 
-			if (isget) {
-				*data =
-				    wlandev->hostwep & HOSTWEP_DEFAULTKEY_MASK;
-			} else {
-				wlandev->hostwep &= ~(HOSTWEP_DEFAULTKEY_MASK);
-
-				wlandev->hostwep |=
-				    (*data & HOSTWEP_DEFAULTKEY_MASK);
-			}
-			break;
+		if (isget) {
+			*data = wlandev->hostwep & HOSTWEP_DEFAULTKEY_MASK;
+		} else {
+			wlandev->hostwep &= ~(HOSTWEP_DEFAULTKEY_MASK);
+			wlandev->hostwep |= (*data & HOSTWEP_DEFAULTKEY_MASK);
 		}
+	break;
+	}
 	case DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked:{
-			u32 *data = (u32 *) mibitem->data;
-
-			if (isget) {
-				if (wlandev->hostwep & HOSTWEP_PRIVACYINVOKED)
-					*data = P80211ENUM_truth_true;
-				else
-					*data = P80211ENUM_truth_false;
-			} else {
-				wlandev->hostwep &= ~(HOSTWEP_PRIVACYINVOKED);
-				if (*data == P80211ENUM_truth_true)
-					wlandev->hostwep |=
-					    HOSTWEP_PRIVACYINVOKED;
-			}
-			break;
+		u32 *data = (u32 *) mibitem->data;
+
+		if (isget) {
+			if (wlandev->hostwep & HOSTWEP_PRIVACYINVOKED)
+				*data = P80211ENUM_truth_true;
+			else
+				*data = P80211ENUM_truth_false;
+		} else {
+			wlandev->hostwep &= ~(HOSTWEP_PRIVACYINVOKED);
+			if (*data == P80211ENUM_truth_true)
+				wlandev->hostwep |= HOSTWEP_PRIVACYINVOKED;
 		}
+	break;
+	}
 	case DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted:{
-			u32 *data = (u32 *) mibitem->data;
-
-			if (isget) {
-				if (wlandev->hostwep &
-				    HOSTWEP_EXCLUDEUNENCRYPTED)
-					*data = P80211ENUM_truth_true;
-				else
-					*data = P80211ENUM_truth_false;
-			} else {
-				wlandev->hostwep &=
-				    ~(HOSTWEP_EXCLUDEUNENCRYPTED);
-				if (*data == P80211ENUM_truth_true)
-					wlandev->hostwep |=
-					    HOSTWEP_EXCLUDEUNENCRYPTED;
-			}
-			break;
+		u32 *data = (u32 *) mibitem->data;
+
+		if (isget) {
+			if (wlandev->hostwep & HOSTWEP_EXCLUDEUNENCRYPTED)
+				*data = P80211ENUM_truth_true;
+			else
+				*data = P80211ENUM_truth_false;
+		} else {
+			wlandev->hostwep &= ~(HOSTWEP_EXCLUDEUNENCRYPTED);
+			if (*data == P80211ENUM_truth_true)
+				wlandev->hostwep |= HOSTWEP_EXCLUDEUNENCRYPTED;
 		}
-	default:
-		;
+	break;
+	}
 	}
-
-	return 0;
 }
diff --git a/drivers/staging/wlan-ng/p80211types.h b/drivers/staging/wlan-ng/p80211types.h
index f043090ef86..8cb4fc6448a 100644
--- a/drivers/staging/wlan-ng/p80211types.h
+++ b/drivers/staging/wlan-ng/p80211types.h
@@ -197,7 +197,7 @@
 					P80211DID_LSB_ACCESS)
 
 /*----------------------------------------------------------------*/
-/* The following structure types are used for the represenation */
+/* The following structure types are used for the representation */
 /*  of ENUMint type metadata. */
 
 typedef struct p80211enumpair {
diff --git a/drivers/staging/wlan-ng/p80211wep.c b/drivers/staging/wlan-ng/p80211wep.c
index 80c2d3b672b..77e50a4aa7e 100644
--- a/drivers/staging/wlan-ng/p80211wep.c
+++ b/drivers/staging/wlan-ng/p80211wep.c
@@ -134,10 +134,8 @@ int wep_change_key(wlandevice_t *wlandev, int keynum, u8 *key, int keylen)
 		return -1;
 
 #ifdef WEP_DEBUG
-	printk(KERN_DEBUG
-	       "WEP key %d len %d = %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-	       keynum, keylen, key[0], key[1], key[2], key[3], key[4], key[5],
-	       key[6], key[7]);
+	printk(KERN_DEBUG "WEP key %d len %d = %*phC\n", keynum, keylen,
+			  8, key);
 #endif
 
 	wlandev->wep_keylens[keynum] = keylen;
@@ -184,10 +182,8 @@ int wep_decrypt(wlandevice_t *wlandev, u8 *buf, u32 len, int key_override,
 	keylen += 3;		/* add in IV bytes */
 
 #ifdef WEP_DEBUG
-	printk(KERN_DEBUG
-	       "D %d: %02x %02x %02x (%d %d) %02x:%02x:%02x:%02x:%02x\n", len,
-	       key[0], key[1], key[2], keyidx, keylen, key[3], key[4], key[5],
-	       key[6], key[7]);
+	printk(KERN_DEBUG "D %d: %*ph (%d %d) %*phC\n", len, 3, key,
+			  keyidx, keylen, 5, key + 3);
 #endif
 
 	/* set up the RC4 state */
@@ -263,10 +259,8 @@ int wep_encrypt(wlandevice_t *wlandev, u8 *buf, u8 *dst, u32 len, int keynum,
 	keylen += 3;		/* add in IV bytes */
 
 #ifdef WEP_DEBUG
-	printk(KERN_DEBUG
-	       "E %d (%d/%d %d) %02x %02x %02x %02x:%02x:%02x:%02x:%02x\n", len,
-	       iv[3], keynum, keylen, key[0], key[1], key[2], key[3], key[4],
-	       key[5], key[6], key[7]);
+	printk(KERN_DEBUG "E %d (%d/%d %d) %*ph %*phC\n", len,
+			  iv[3], keynum, keylen, 3, key, 5, key + 3);
 #endif
 
 	/* set up the RC4 state */
diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c
index 66c9aa97231..0dfd2a4933e 100644
--- a/drivers/staging/wlan-ng/prism2fw.c
+++ b/drivers/staging/wlan-ng/prism2fw.c
@@ -123,27 +123,27 @@ struct imgchunk {
 /* s-record image processing */
 
 /* Data records */
-unsigned int ns3data;
-struct s3datarec s3data[S3DATA_MAX];
+static unsigned int ns3data;
+static struct s3datarec s3data[S3DATA_MAX];
 
 /* Plug records */
-unsigned int ns3plug;
-struct s3plugrec s3plug[S3PLUG_MAX];
+static unsigned int ns3plug;
+static struct s3plugrec s3plug[S3PLUG_MAX];
 
 /* CRC records */
-unsigned int ns3crc;
-struct s3crcrec s3crc[S3CRC_MAX];
+static unsigned int ns3crc;
+static struct s3crcrec s3crc[S3CRC_MAX];
 
 /* Info records */
-unsigned int ns3info;
-struct s3inforec s3info[S3INFO_MAX];
+static unsigned int ns3info;
+static struct s3inforec s3info[S3INFO_MAX];
 
 /* S7 record (there _better_ be only one) */
-u32 startaddr;
+static u32 startaddr;
 
 /* Load image chunks */
-unsigned int nfchunks;
-struct imgchunk fchunk[CHUNKS_MAX];
+static unsigned int nfchunks;
+static struct imgchunk fchunk[CHUNKS_MAX];
 
 /* Note that for the following pdrec_t arrays, the len and code */
 /*   fields are stored in HOST byte order. The mkpdrlist() function */
@@ -151,11 +151,11 @@ struct imgchunk fchunk[CHUNKS_MAX];
 /*----------------------------------------------------------------*/
 /* PDA, built from [card|newfile]+[addfile1+addfile2...] */
 
-struct pda pda;
-hfa384x_compident_t nicid;
-hfa384x_caplevel_t rfid;
-hfa384x_caplevel_t macid;
-hfa384x_caplevel_t priid;
+static struct pda pda;
+static hfa384x_compident_t nicid;
+static hfa384x_caplevel_t rfid;
+static hfa384x_caplevel_t macid;
+static hfa384x_caplevel_t priid;
 
 /*================================================================*/
 /* Local Function Declarations */
@@ -237,7 +237,7 @@ int prism2_fwtry(struct usb_device *udev, wlandevice_t *wlandev)
 *	0	- success
 *	~0	- failure
 ----------------------------------------------------------------*/
-int prism2_fwapply(const struct ihex_binrec *rfptr, wlandevice_t *wlandev)
+static int prism2_fwapply(const struct ihex_binrec *rfptr, wlandevice_t *wlandev)
 {
 	signed int result = 0;
 	struct p80211msg_dot11req_mibget getmsg;
@@ -376,7 +376,7 @@ int prism2_fwapply(const struct ihex_binrec *rfptr, wlandevice_t *wlandev)
 *	0	success
 *	~0	failure
 ----------------------------------------------------------------*/
-int crcimage(struct imgchunk *fchunk, unsigned int nfchunks,
+static int crcimage(struct imgchunk *fchunk, unsigned int nfchunks,
 	     struct s3crcrec *s3crc, unsigned int ns3crc)
 {
 	int result = 0;
@@ -440,7 +440,7 @@ int crcimage(struct imgchunk *fchunk, unsigned int nfchunks,
 * Returns:
 *	nothing
 ----------------------------------------------------------------*/
-void free_chunks(struct imgchunk *fchunk, unsigned int *nfchunks)
+static void free_chunks(struct imgchunk *fchunk, unsigned int *nfchunks)
 {
 	int i;
 	for (i = 0; i < *nfchunks; i++)
@@ -462,7 +462,7 @@ void free_chunks(struct imgchunk *fchunk, unsigned int *nfchunks)
 * Returns:
 *	nothing
 ----------------------------------------------------------------*/
-void free_srecs(void)
+static void free_srecs(void)
 {
 	ns3data = 0;
 	memset(s3data, 0, sizeof(s3data));
@@ -489,7 +489,7 @@ void free_srecs(void)
 *	0	- success
 *	~0	- failure (probably an errno)
 ----------------------------------------------------------------*/
-int mkimage(struct imgchunk *clist, unsigned int *ccnt)
+static int mkimage(struct imgchunk *clist, unsigned int *ccnt)
 {
 	int result = 0;
 	int i;
@@ -582,7 +582,7 @@ int mkimage(struct imgchunk *clist, unsigned int *ccnt)
 *	0	- success
 *	~0	- failure (probably an errno)
 ----------------------------------------------------------------*/
-int mkpdrlist(struct pda *pda)
+static int mkpdrlist(struct pda *pda)
 {
 	int result = 0;
 	u16 *pda16 = (u16 *) pda->buf;
@@ -656,7 +656,7 @@ int mkpdrlist(struct pda *pda)
 *	0	success
 *	~0	failure
 ----------------------------------------------------------------*/
-int plugimage(struct imgchunk *fchunk, unsigned int nfchunks,
+static int plugimage(struct imgchunk *fchunk, unsigned int nfchunks,
 	      struct s3plugrec *s3plug, unsigned int ns3plug, struct pda *pda)
 {
 	int result = 0;
@@ -764,7 +764,7 @@ int plugimage(struct imgchunk *fchunk, unsigned int nfchunks,
 *	0	- success
 *	~0	- failure (probably an errno)
 ----------------------------------------------------------------*/
-int read_cardpda(struct pda *pda, wlandevice_t *wlandev)
+static int read_cardpda(struct pda *pda, wlandevice_t *wlandev)
 {
 	int result = 0;
 	struct p80211msg_p2req_readpda msg;
@@ -806,7 +806,7 @@ int read_cardpda(struct pda *pda, wlandevice_t *wlandev)
 *
 * Note also that the start address record, originally an S7 record in
 * the srec file, is expected in the fw file to be like a data record but
-* with a certain address to make it identiable.
+* with a certain address to make it identifiable.
 *
 * Here's the SREC format that the fw should have come from:
 * S[37]nnaaaaaaaaddd...dddcc
@@ -854,7 +854,7 @@ int read_cardpda(struct pda *pda, wlandevice_t *wlandev)
 *	0	- success
 *	~0	- failure (probably an errno)
 ----------------------------------------------------------------*/
-int read_fwfile(const struct ihex_binrec *record)
+static int read_fwfile(const struct ihex_binrec *record)
 {
 	int		i;
 	int		rcnt = 0;
@@ -978,7 +978,7 @@ int read_fwfile(const struct ihex_binrec *record)
 *	0	success
 *	~0	failure
 ----------------------------------------------------------------*/
-int writeimage(wlandevice_t *wlandev, struct imgchunk *fchunk,
+static int writeimage(wlandevice_t *wlandev, struct imgchunk *fchunk,
 	       unsigned int nfchunks)
 {
 	int result = 0;
@@ -1130,7 +1130,7 @@ free_result:
 	return result;
 }
 
-int validate_identity(void)
+static int validate_identity(void)
 {
 	int i;
 	int result = 1;
diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index 1dfd9aa5e9f..8d2277bb898 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -242,7 +242,6 @@ static int prism2sta_close(wlandevice_t *wlandev)
 ----------------------------------------------------------------*/
 static void prism2sta_reset(wlandevice_t *wlandev)
 {
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -988,7 +987,6 @@ static void prism2sta_inf_handover(wlandevice_t *wlandev,
 				   hfa384x_InfFrame_t *inf)
 {
 	pr_debug("received infoframe:HANDOVER (unhandled)\n");
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1035,8 +1033,6 @@ static void prism2sta_inf_tallies(wlandevice_t *wlandev,
 		for (i = 0; i < cnt; i++, dst++, src16++)
 			*dst += le16_to_cpu(*src16);
 	}
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1093,8 +1089,6 @@ static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
 		printk(KERN_ERR "setconfig(joinreq) failed, result=%d\n",
 		       result);
 	}
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1194,7 +1188,6 @@ static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
 	atomic_set(&hw->channel_info.done, 2);
 
 	hw->channel_info.count = n;
-	return;
 }
 
 void prism2sta_processing_defer(struct work_struct *data)
@@ -1218,7 +1211,7 @@ void prism2sta_processing_defer(struct work_struct *data)
 
 	/* Now let's handle the linkstatus stuff */
 	if (hw->link_status == hw->link_status_new)
-		goto failed;
+		return;
 
 	hw->link_status = hw->link_status_new;
 
@@ -1272,7 +1265,7 @@ void prism2sta_processing_defer(struct work_struct *data)
 				pr_debug
 				    ("getconfig(0x%02x) failed, result = %d\n",
 				     HFA384x_RID_CURRENTBSSID, result);
-				goto failed;
+				return;
 			}
 
 			result = hfa384x_drvr_getconfig(hw,
@@ -1282,7 +1275,7 @@ void prism2sta_processing_defer(struct work_struct *data)
 				pr_debug
 				    ("getconfig(0x%02x) failed, result = %d\n",
 				     HFA384x_RID_CURRENTSSID, result);
-				goto failed;
+				return;
 			}
 			prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
 						(p80211pstrd_t *) &
@@ -1296,7 +1289,7 @@ void prism2sta_processing_defer(struct work_struct *data)
 				pr_debug
 				    ("getconfig(0x%02x) failed, result = %d\n",
 				     HFA384x_RID_PORTSTATUS, result);
-				goto failed;
+				return;
 			}
 			wlandev->macmode =
 			    (portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
@@ -1355,7 +1348,7 @@ void prism2sta_processing_defer(struct work_struct *data)
 		if (result) {
 			pr_debug("getconfig(0x%02x) failed, result = %d\n",
 				 HFA384x_RID_CURRENTBSSID, result);
-			goto failed;
+			return;
 		}
 
 		result = hfa384x_drvr_getconfig(hw,
@@ -1364,7 +1357,7 @@ void prism2sta_processing_defer(struct work_struct *data)
 		if (result) {
 			pr_debug("getconfig(0x%02x) failed, result = %d\n",
 				 HFA384x_RID_CURRENTSSID, result);
-			goto failed;
+			return;
 		}
 		prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
 					(p80211pstrd_t *) &wlandev->ssid);
@@ -1443,14 +1436,10 @@ void prism2sta_processing_defer(struct work_struct *data)
 		/* This is bad, IO port problems? */
 		printk(KERN_WARNING
 		       "unknown linkstatus=0x%02x\n", hw->link_status);
-		goto failed;
-		break;
+		return;
 	}
 
 	wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
-
-failed:
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1478,8 +1467,6 @@ static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
 	hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
 
 	schedule_work(&hw->link_bh);
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1540,8 +1527,6 @@ static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
 			printk(KERN_WARNING
 "authfail assocstatus info frame received for authenticated station.\n");
 	}
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1731,7 +1716,6 @@ static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
 		       "setconfig(authenticatestation) failed, result=%d\n",
 		       result);
 	}
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1758,8 +1742,6 @@ static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
 
 	hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1825,7 +1807,6 @@ void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
 		       "Unknown info type=0x%02x\n", inf->infotype);
 		break;
 	}
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1850,8 +1831,6 @@ void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
 void prism2sta_ev_txexc(wlandevice_t *wlandev, u16 status)
 {
 	pr_debug("TxExc status=0x%x.\n", status);
-
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1875,7 +1854,6 @@ void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
 	pr_debug("Tx Complete, status=0x%04x\n", status);
 	/* update linux network stats */
 	wlandev->linux_stats.tx_packets++;
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1897,7 +1875,6 @@ void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
 void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
 {
 	p80211netdev_rx(wlandev, skb);
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1919,7 +1896,6 @@ void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
 void prism2sta_ev_alloc(wlandevice_t *wlandev)
 {
 	netif_wake_queue(wlandev->netdev);
-	return;
 }
 
 /*----------------------------------------------------------------
@@ -1988,12 +1964,12 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 	int result = 0;
 
 	if (hw->wlandev->hwremoved)
-		goto done;
+		return;
 
 	/* we don't care if we're in AP mode */
 	if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
 	    (wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
-		goto done;
+		return;
 	}
 
 	/* It only makes sense to poll these in non-IBSS */
@@ -2004,7 +1980,7 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 
 		if (result) {
 			printk(KERN_ERR "error fetching commsqual\n");
-			goto done;
+			return;
 		}
 
 		pr_debug("commsqual %d %d %d\n",
@@ -2021,7 +1997,7 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 	if (result) {
 		pr_debug("get signal rate failed, result = %d\n",
 			 result);
-		goto done;
+		return;
 	}
 
 	switch (mibitem->data) {
@@ -2048,7 +2024,7 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 	if (result) {
 		pr_debug("getconfig(0x%02x) failed, result = %d\n",
 			 HFA384x_RID_CURRENTBSSID, result);
-		goto done;
+		return;
 	}
 
 	result = hfa384x_drvr_getconfig(hw,
@@ -2057,16 +2033,13 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 	if (result) {
 		pr_debug("getconfig(0x%02x) failed, result = %d\n",
 			 HFA384x_RID_CURRENTSSID, result);
-		goto done;
+		return;
 	}
 	prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
 				(p80211pstrd_t *) &wlandev->ssid);
 
 	/* Reschedule timer */
 	mod_timer(&hw->commsqual_timer, jiffies + HZ);
-
-done:
-	;
 }
 
 void prism2sta_commsqual_timer(unsigned long data)
diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index 64ffd70eb7d..f775c545384 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -6,6 +6,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/sizes.h>
 #include <linux/module.h>
 
 #ifdef CONFIG_MTRR
@@ -329,6 +330,7 @@ static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 {
 	u16 xres, yres;
 	struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
+	unsigned long required_mem;
 
 	if (xgifb_info->chip == XG21) {
 		if (xgifb_info->display2 == XGIFB_DISP_LCD) {
@@ -345,13 +347,13 @@ static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 			}
 
 		}
-		return myindex;
+		goto check_memory;
 
 	}
 
 	/* FIXME: for now, all is valid on XG27 */
 	if (xgifb_info->chip == XG27)
-		return myindex;
+		goto check_memory;
 
 	if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
 		return -1;
@@ -539,6 +541,12 @@ static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 	case XGIFB_DISP_NONE:
 		break;
 	}
+
+check_memory:
+	required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
+		       XGIbios_mode[myindex].bpp / 8;
+	if (required_mem > xgifb_info->video_size)
+		return -1;
 	return myindex;
 
 }
@@ -913,17 +921,10 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
 			}
 
 			if ((filter >= 0) && (filter <= 7)) {
-				pr_debug("FilterTable[%d]-%d: %02x %02x %02x %02x\n",
+				pr_debug("FilterTable[%d]-%d: %*ph\n",
 					 filter_tb, filter,
-					 XGI_TV_filter[filter_tb].
-						filter[filter][0],
-					 XGI_TV_filter[filter_tb].
-						filter[filter][1],
-					 XGI_TV_filter[filter_tb].
-						filter[filter][2],
-					 XGI_TV_filter[filter_tb].
-						filter[filter][3]
-				);
+					 4, XGI_TV_filter[filter_tb].
+						   filter[filter]);
 				xgifb_reg_set(
 					XGIPART2,
 					0x35,
@@ -1404,11 +1405,10 @@ static int XGIfb_pan_display(struct fb_var_screeninfo *var,
 		if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
 				|| var->xoffset)
 			return -EINVAL;
-	} else {
-		if (var->xoffset + info->var.xres > info->var.xres_virtual
+	} else if (var->xoffset + info->var.xres > info->var.xres_virtual
 				|| var->yoffset + info->var.yres
-						> info->var.yres_virtual)
-			return -EINVAL;
+						> info->var.yres_virtual) {
+		return -EINVAL;
 	}
 	err = XGIfb_pan_var(var, info);
 	if (err < 0)
@@ -1471,6 +1471,9 @@ static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
 		xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
 
 	reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
+	if (!reg)
+		return -1;
+
 	switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
 	case XGI_DRAM_SIZE_1MB:
 		xgifb_info->video_size = 0x100000;
@@ -1701,6 +1704,7 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 	struct fb_info *fb_info;
 	struct xgifb_video_info *xgifb_info;
 	struct xgi_hw_device_info *hw_info;
+	unsigned long video_size_max;
 
 	fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
 	if (!fb_info)
@@ -1721,6 +1725,7 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 	xgifb_info->subsysvendor = pdev->subsystem_vendor;
 	xgifb_info->subsysdevice = pdev->subsystem_device;
 
+	video_size_max = pci_resource_len(pdev, 0);
 	xgifb_info->video_base = pci_resource_start(pdev, 0);
 	xgifb_info->mmio_base = pci_resource_start(pdev, 1);
 	xgifb_info->mmio_size = pci_resource_len(pdev, 1);
@@ -1777,10 +1782,10 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 	hw_info->jChipType = xgifb_info->chip;
 
 	if (XGIfb_get_dram_size(xgifb_info)) {
-		dev_err(&pdev->dev,
-			"Fatal error: Unable to determine RAM size.\n");
-		ret = -ENODEV;
-		goto error_disable;
+		xgifb_info->video_size = min_t(unsigned long, video_size_max,
+						SZ_16M);
+	} else if (xgifb_info->video_size > video_size_max) {
+		xgifb_info->video_size = video_size_max;
 	}
 
 	/* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
diff --git a/drivers/staging/xgifb/vb_def.h b/drivers/staging/xgifb/vb_def.h
index 69078d933a4..77137e4452a 100644
--- a/drivers/staging/xgifb/vb_def.h
+++ b/drivers/staging/xgifb/vb_def.h
@@ -3,9 +3,7 @@
 #include "../../video/sis/initdef.h"
 
 #define VB_XGI301C      0x0020 /* for 301C */
-#define VB_YPbPr1080i   0x03
 
-#define LVDSCRT1Len     15
 #define SupportCRT2in301C       0x0100  /* for 301C */
 #define SetCHTVOverScan         0x8000
 
@@ -22,15 +20,6 @@
 
 #define XGI_CRT2_PORT_00        (0x00 - 0x030)
 
-/* =============================================================
-   for 310
-============================================================== */
-#define ModeSoftSetting              0x04
-
-/* ---------------- SetMode Stack */
-#define CRT1Len           15
-#define VCLKLen           4
-
 #define SupportAllCRT2      0x0078
 #define NoSupportTV         0x0070
 #define NoSupportHiVisionTV 0x0060
@@ -115,16 +104,6 @@
 #define ActiveHiTV            0x08
 #define ActiveYPbPr           0x10
 
-/* --------------------------------------------------------- */
-/* translated from asm code 301def.h */
-/*  */
-/* --------------------------------------------------------- */
-#define LVDSCRT1Len_H        8
-#define LVDSCRT1Len_V        7
-#define LCDDesDataLen        6
-#define LVDSDesDataLen2      8
-#define LCDDesDataLen2       8
-
 #define NTSC1024x768HT       1908
 
 #define YPbPrTV525iHT        1716 /* YPbPr */
diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c
index 80dba6a425b..7739dbd9f02 100644
--- a/drivers/staging/xgifb/vb_init.c
+++ b/drivers/staging/xgifb/vb_init.c
@@ -1269,7 +1269,7 @@ static unsigned char GetXG27FPBits(struct vb_device_info *pVBInfo)
 	if (temp <= 2)
 		temp &= 0x03;
 	else
-		temp = ((temp & 0x04) >> 1) || ((~temp) & 0x01);
+		temp = ((temp & 0x04) >> 1) | ((~temp) & 0x01);
 
 	xgifb_reg_set(pVBInfo->P3d4, 0x4A, CR4A);
 
@@ -1299,8 +1299,6 @@ unsigned char XGIInitNew(struct pci_dev *pdev)
 
 	outb(0x67, (pVBInfo->BaseAddr + 0x12)); /* 3c2 <- 67 ,ynlai */
 
-	pVBInfo->ISXPDOS = 0;
-
 	pVBInfo->P3c4 = pVBInfo->BaseAddr + 0x14;
 	pVBInfo->P3d4 = pVBInfo->BaseAddr + 0x24;
 	pVBInfo->P3c0 = pVBInfo->BaseAddr + 0x10;
@@ -1494,7 +1492,6 @@ unsigned char XGIInitNew(struct pci_dev *pdev)
 	XGINew_SetModeScratch(HwDeviceExtension, pVBInfo);
 
 	xgifb_reg_set(pVBInfo->P3d4, 0x8c, 0x87);
-	xgifb_reg_set(pVBInfo->P3c4, 0x14, 0x31);
 
 	return 1;
 } /* end of init */
diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index e81149fc66e..e95a1655a6c 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -23,20 +23,18 @@ static const unsigned short XGINew_VGA_DAC[] = {
 
 void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo)
 {
-	pVBInfo->StandTable = (struct SiS_StandTable_S *) &XGI330_StandTable;
-	pVBInfo->EModeIDTable = (struct XGI_ExtStruct *) XGI330_EModeIDTable;
-	pVBInfo->RefIndex = (struct XGI_Ext2Struct *) XGI330_RefIndex;
-	pVBInfo->XGINEWUB_CRT1Table
-			= (struct XGI_CRT1TableStruct *) XGI_CRT1Table;
-
-	pVBInfo->MCLKData = (struct SiS_MCLKData *) XGI340New_MCLKData;
-	pVBInfo->ECLKData = (struct XGI_ECLKDataStruct *) XGI340_ECLKData;
-	pVBInfo->VCLKData = (struct SiS_VCLKData *) XGI_VCLKData;
-	pVBInfo->VBVCLKData = (struct SiS_VBVCLKData *) XGI_VBVCLKData;
+	pVBInfo->StandTable = &XGI330_StandTable;
+	pVBInfo->EModeIDTable = XGI330_EModeIDTable;
+	pVBInfo->RefIndex = XGI330_RefIndex;
+	pVBInfo->XGINEWUB_CRT1Table = XGI_CRT1Table;
+
+	pVBInfo->MCLKData = XGI340New_MCLKData;
+	pVBInfo->ECLKData = XGI340_ECLKData;
+	pVBInfo->VCLKData = XGI_VCLKData;
+	pVBInfo->VBVCLKData = XGI_VBVCLKData;
 	pVBInfo->ScreenOffset = XGI330_ScreenOffset;
-	pVBInfo->StResInfo = (struct SiS_StResInfo_S *) XGI330_StResInfo;
-	pVBInfo->ModeResInfo
-			= (struct SiS_ModeResInfo_S *) XGI330_ModeResInfo;
+	pVBInfo->StResInfo = XGI330_StResInfo;
+	pVBInfo->ModeResInfo = XGI330_ModeResInfo;
 
 	pVBInfo->LCDResInfo = 0;
 	pVBInfo->LCDTypeInfo = 0;
@@ -56,24 +54,9 @@ void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo)
 	pVBInfo->SR21 = 0xa3;
 	pVBInfo->SR22 = 0xfb;
 
-	pVBInfo->NTSCTiming = XGI330_NTSCTiming;
-	pVBInfo->PALTiming = XGI330_PALTiming;
-	pVBInfo->HiTVExtTiming = XGI330_HiTVExtTiming;
-	pVBInfo->HiTVSt1Timing = XGI330_HiTVSt1Timing;
-	pVBInfo->HiTVSt2Timing = XGI330_HiTVSt2Timing;
-	pVBInfo->HiTVTextTiming = XGI330_HiTVTextTiming;
-	pVBInfo->YPbPr750pTiming = XGI330_YPbPr750pTiming;
-	pVBInfo->YPbPr525pTiming = XGI330_YPbPr525pTiming;
-	pVBInfo->YPbPr525iTiming = XGI330_YPbPr525iTiming;
-	pVBInfo->HiTVGroup3Data = XGI330_HiTVGroup3Data;
-	pVBInfo->HiTVGroup3Simu = XGI330_HiTVGroup3Simu;
-	pVBInfo->HiTVGroup3Text = XGI330_HiTVGroup3Text;
-	pVBInfo->Ren525pGroup3 = XGI330_Ren525pGroup3;
-	pVBInfo->Ren750pGroup3 = XGI330_Ren750pGroup3;
-
-	pVBInfo->TimingH = (struct XGI_TimingHStruct *) XGI_TimingH;
-	pVBInfo->TimingV = (struct XGI_TimingVStruct *) XGI_TimingV;
-	pVBInfo->UpdateCRT1 = (struct XGI_XG21CRT1Struct *) XGI_UpdateCRT1Table;
+	pVBInfo->TimingH = XGI_TimingH;
+	pVBInfo->TimingV = XGI_TimingV;
+	pVBInfo->UpdateCRT1 = XGI_UpdateCRT1Table;
 
 	/* 310 customization related */
 	if ((pVBInfo->VBType & VB_SIS301LV) || (pVBInfo->VBType & VB_SIS302LV))
@@ -86,8 +69,7 @@ void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo)
 
 	if (ChipType == XG27) {
 		unsigned char temp;
-		pVBInfo->MCLKData
-			= (struct SiS_MCLKData *) XGI27New_MCLKData;
+		pVBInfo->MCLKData = XGI27New_MCLKData;
 		pVBInfo->CR40 = XGI27_cr41;
 		pVBInfo->XGINew_CR97 = 0xc1;
 		pVBInfo->SR15 = XG27_SR13;
@@ -116,11 +98,9 @@ static void XGI_SetSeqRegs(unsigned short ModeNo,
 	i = XGI_SetCRT2ToLCDA;
 	if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
 		tempah |= 0x01;
-	} else {
-		if (pVBInfo->VBInfo & (SetCRT2ToTV | SetCRT2ToLCD)) {
-			if (pVBInfo->VBInfo & SetInSlaveMode)
-				tempah |= 0x01;
-		}
+	} else if (pVBInfo->VBInfo & (SetCRT2ToTV | SetCRT2ToLCD)) {
+		if (pVBInfo->VBInfo & SetInSlaveMode)
+			tempah |= 0x01;
 	}
 
 	tempah |= 0x20; /* screen off */
@@ -165,10 +145,9 @@ static void XGI_SetATTRegs(unsigned short ModeNo,
 		if ((modeflag & Charx8Dot) && i == 0x13) { /* ifndef Dot9 */
 			if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
 				ARdata = 0;
-			} else {
-				if ((pVBInfo->VBInfo &
+			} else if ((pVBInfo->VBInfo &
 				     (SetCRT2ToTV | SetCRT2ToLCD)) &&
-				    (pVBInfo->VBInfo & SetInSlaveMode))
+				    (pVBInfo->VBInfo & SetInSlaveMode)) {
 					ARdata = 0;
 			}
 		}
@@ -258,59 +237,45 @@ static unsigned char XGI_AjustCRT2Rate(unsigned short ModeNo,
 		}
 
 		if (pVBInfo->VBInfo & SetCRT2ToHiVision) { /* for HiTV */
-			if ((pVBInfo->VBType & VB_SIS301LV) &&
-			    (pVBInfo->VBExtInfo == VB_YPbPr1080i)) {
-				tempax |= SupportYPbPr750p;
-				if ((pVBInfo->VBInfo & SetInSlaveMode) &&
-				    ((resinfo == 3) ||
-				     (resinfo == 4) ||
-				     (resinfo > 7)))
+			tempax |= SupportHiVision;
+			if ((pVBInfo->VBInfo & SetInSlaveMode) &&
+			    ((resinfo == 4) ||
+			     (resinfo == 3 &&
+			      (pVBInfo->SetFlag & TVSimuMode)) ||
+			     (resinfo > 7)))
 					return 0;
-			} else {
-				tempax |= SupportHiVision;
-				if ((pVBInfo->VBInfo & SetInSlaveMode) &&
-				    ((resinfo == 4) ||
-				     (resinfo == 3 &&
-				      (pVBInfo->SetFlag & TVSimuMode)) ||
-				     (resinfo > 7)))
-						return 0;
-			}
-		} else {
-			if (pVBInfo->VBInfo & (SetCRT2ToAVIDEO |
+		} else if (pVBInfo->VBInfo & (SetCRT2ToAVIDEO |
 					       SetCRT2ToSVIDEO |
 					       SetCRT2ToSCART |
 					       SetCRT2ToYPbPr525750 |
 					       SetCRT2ToHiVision)) {
-				tempax |= SupportTV;
-
-				if (pVBInfo->VBType & (VB_SIS301B |
-						       VB_SIS302B |
-						       VB_SIS301LV |
-						       VB_SIS302LV |
-						       VB_XGI301C))
-					tempax |= SupportTV1024;
-
-				if (!(pVBInfo->VBInfo & TVSetPAL) &&
-				    (modeflag & NoSupportSimuTV) &&
-				    (pVBInfo->VBInfo & SetInSlaveMode) &&
-				    (!(pVBInfo->VBInfo & SetNotSimuMode)))
-					return 0;
-			}
+			tempax |= SupportTV;
+
+			if (pVBInfo->VBType & (VB_SIS301B |
+					       VB_SIS302B |
+					       VB_SIS301LV |
+					       VB_SIS302LV |
+					       VB_XGI301C))
+				tempax |= SupportTV1024;
+
+			if (!(pVBInfo->VBInfo & TVSetPAL) &&
+			    (modeflag & NoSupportSimuTV) &&
+			    (pVBInfo->VBInfo & SetInSlaveMode) &&
+			    (!(pVBInfo->VBInfo & SetNotSimuMode)))
+				return 0;
 		}
-	} else { /* for LVDS */
-		if (pVBInfo->VBInfo & SetCRT2ToLCD) {
-			tempax |= SupportLCD;
+	} else if (pVBInfo->VBInfo & SetCRT2ToLCD) { /* for LVDS */
+		tempax |= SupportLCD;
 
-			if (resinfo > 0x08)
-				return 0; /* 1024x768 */
+		if (resinfo > 0x08)
+			return 0; /* 1024x768 */
 
-			if (pVBInfo->LCDResInfo < Panel_1024x768) {
-				if (resinfo > 0x07)
-					return 0; /* 800x600 */
+		if (pVBInfo->LCDResInfo < Panel_1024x768) {
+			if (resinfo > 0x07)
+				return 0; /* 800x600 */
 
-				if (resinfo == 0x04)
-					return 0; /* 512x384 */
-			}
+			if (resinfo == 0x04)
+				return 0; /* 512x384 */
 		}
 	}
 
@@ -969,13 +934,8 @@ static unsigned short XGI_GetVCLK2Ptr(unsigned short ModeNo,
 			}
 
 			/* 301lv */
-			if ((pVBInfo->VBType & VB_SIS301LV) &&
-			    !(pVBInfo->VBExtInfo == VB_YPbPr1080i)) {
-				if (pVBInfo->VBExtInfo == YPbPr750p)
-					VCLKIndex = XGI_YPbPr750pVCLK;
-				else if (pVBInfo->VBExtInfo == YPbPr525p)
-					VCLKIndex = YPbPr525pVCLK;
-				else if (pVBInfo->SetFlag & RPLLDIV2XO)
+			if (pVBInfo->VBType & VB_SIS301LV) {
+				if (pVBInfo->SetFlag & RPLLDIV2XO)
 					VCLKIndex = YPbPr525iVCLK_2;
 				else
 					VCLKIndex = YPbPr525iVCLK;
@@ -991,13 +951,11 @@ static unsigned short XGI_GetVCLK2Ptr(unsigned short ModeNo,
 								Ext_CRTVCLK;
 			VCLKIndex &= IndexMask;
 		}
-	} else { /* LVDS */
-		if ((pVBInfo->LCDResInfo == Panel_800x600) ||
-		    (pVBInfo->LCDResInfo == Panel_320x480))
-			VCLKIndex = VCLK40; /* LVDSXlat1VCLK */
-		else
-			VCLKIndex = VCLK65_315 + 2; /* LVDSXlat2VCLK,
-						       LVDSXlat3VCLK  */
+	} else if ((pVBInfo->LCDResInfo == Panel_800x600) ||
+		   (pVBInfo->LCDResInfo == Panel_320x480)) { /* LVDS */
+		VCLKIndex = VCLK40; /* LVDSXlat1VCLK */
+	} else {
+		VCLKIndex = VCLK65_315 + 2; /* LVDSXlat2VCLK, LVDSXlat3VCLK */
 	}
 
 	return VCLKIndex;
@@ -1352,7 +1310,7 @@ static void *XGI_GetLcdPtr(unsigned short BX, unsigned short ModeNo,
 		unsigned short RefreshRateTableIndex,
 		struct vb_device_info *pVBInfo)
 {
-	unsigned short i, tempdx, tempcx, tempbx, tempal, modeflag, table;
+	unsigned short i, tempdx, tempbx, tempal, modeflag, table;
 
 	struct XGI330_LCDDataTablStruct *tempdi = NULL;
 
@@ -1377,15 +1335,6 @@ static void *XGI_GetLcdPtr(unsigned short BX, unsigned short ModeNo,
 		tempal = (tempal & 0x0f);
 	}
 
-	tempcx = LCDLenList[tempbx];
-
-	if (pVBInfo->LCDInfo & EnableScalingLCD) { /* ScaleLCD */
-		if ((tempbx == 5) || (tempbx) == 7)
-			tempcx = LCDDesDataLen2;
-		else if ((tempbx == 3) || (tempbx == 8))
-			tempcx = LVDSDesDataLen2;
-	}
-
 	switch (tempbx) {
 	case 0:
 	case 1:
@@ -1403,14 +1352,6 @@ static void *XGI_GetLcdPtr(unsigned short BX, unsigned short ModeNo,
 	case 5:
 		tempdi = XGI_LCDDesDataTable;
 		break;
-	case 6:
-		tempdi = XGI_EPLCHLCDRegPtr;
-		break;
-	case 7:
-	case 8:
-	case 9:
-		tempdi = NULL;
-		break;
 	default:
 		break;
 	}
@@ -1764,62 +1705,20 @@ static void *XGI_GetLcdPtr(unsigned short BX, unsigned short ModeNo,
 		default:
 			break;
 		}
-	} else if (table == 6) {
-		switch (tempdi[i].DATAPTR) {
-		case 0:
-			return &XGI_CH7017LV1024x768[tempal];
-			break;
-		case 1:
-			return &XGI_CH7017LV1400x1050[tempal];
-			break;
-		default:
-			break;
-		}
 	}
 	return NULL;
 }
 
-static void *XGI_GetTVPtr(unsigned short BX, unsigned short ModeNo,
+static struct SiS_TVData const *XGI_GetTVPtr(unsigned short ModeNo,
 		unsigned short ModeIdIndex,
 		unsigned short RefreshRateTableIndex,
 		struct vb_device_info *pVBInfo)
 {
-	unsigned short i, tempdx, tempbx, tempal, modeflag, table;
-	struct XGI330_TVDataTablStruct *tempdi = NULL;
+	unsigned short i, tempdx, tempal, modeflag;
 
-	tempbx = BX;
 	modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_ModeFlag;
 	tempal = pVBInfo->RefIndex[RefreshRateTableIndex].Ext_CRT2CRTC;
 	tempal = tempal & 0x3f;
-	table = tempbx;
-
-	switch (tempbx) {
-	case 0:
-		tempdi = NULL;
-		break;
-	case 1:
-		tempdi = NULL;
-		break;
-	case 2:
-	case 6:
-		tempdi = xgifb_chrontel_tv;
-		break;
-	case 3:
-		tempdi = NULL;
-		break;
-	case 4:
-		tempdi = XGI_TVDataTable;
-		break;
-	case 5:
-		tempdi = NULL;
-		break;
-	default:
-		break;
-	}
-
-	if (tempdi == NULL) /* OEMUtil */
-		return NULL;
-
 	tempdx = pVBInfo->TVInfo;
 
 	if (pVBInfo->VBInfo & SetInSlaveMode)
@@ -1830,78 +1729,14 @@ static void *XGI_GetTVPtr(unsigned short BX, unsigned short ModeNo,
 
 	i = 0;
 
-	while (tempdi[i].MASK != 0xffff) {
-		if ((tempdx & tempdi[i].MASK) == tempdi[i].CAP)
+	while (XGI_TVDataTable[i].MASK != 0xffff) {
+		if ((tempdx & XGI_TVDataTable[i].MASK) ==
+			XGI_TVDataTable[i].CAP)
 			break;
 		i++;
 	}
 
-	if (table == 0x04) {
-		switch (tempdi[i].DATAPTR) {
-		case 0:
-			return &XGI_ExtPALData[tempal];
-			break;
-		case 1:
-			return &XGI_ExtNTSCData[tempal];
-			break;
-		case 2:
-			return &XGI_StPALData[tempal];
-			break;
-		case 3:
-			return &XGI_StNTSCData[tempal];
-			break;
-		case 4:
-			return &XGI_ExtHiTVData[tempal];
-			break;
-		case 5:
-			return &XGI_St2HiTVData[tempal];
-			break;
-		case 6:
-			return &XGI_ExtYPbPr525iData[tempal];
-			break;
-		case 7:
-			return &XGI_ExtYPbPr525pData[tempal];
-			break;
-		case 8:
-			return &XGI_ExtYPbPr750pData[tempal];
-			break;
-		case 9:
-			return &XGI_StYPbPr525iData[tempal];
-			break;
-		case 10:
-			return &XGI_StYPbPr525pData[tempal];
-			break;
-		case 11:
-			return &XGI_StYPbPr750pData[tempal];
-			break;
-		case 12: /* avoid system hang */
-			return &XGI_ExtNTSCData[tempal];
-			break;
-		case 13:
-			return &XGI_St1HiTVData[tempal];
-			break;
-		default:
-			break;
-		}
-	} else if (table == 0x02) {
-		switch (tempdi[i].DATAPTR) {
-		case 0:
-			return &XGI_CHTVUNTSCData[tempal];
-			break;
-		case 1:
-			return &XGI_CHTVONTSCData[tempal];
-			break;
-		case 2:
-			return &XGI_CHTVUPALData[tempal];
-			break;
-		case 3:
-			return &XGI_CHTVOPALData[tempal];
-			break;
-		default:
-			break;
-		}
-	}
-	return NULL;
+	return &XGI_TVDataTable[i].DATAPTR[tempal];
 }
 
 static void XGI_GetLVDSData(unsigned short ModeNo, unsigned short ModeIdIndex,
@@ -1914,9 +1749,8 @@ static void XGI_GetLVDSData(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempbx = 2;
 
 	if (pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
-		LCDPtr = (struct SiS_LVDSData *)XGI_GetLcdPtr(tempbx,
-				ModeNo, ModeIdIndex, RefreshRateTableIndex,
-				pVBInfo);
+		LCDPtr = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+				       RefreshRateTableIndex, pVBInfo);
 		pVBInfo->VGAHT = LCDPtr->VGAHT;
 		pVBInfo->VGAVT = LCDPtr->VGAVT;
 		pVBInfo->HT = LCDPtr->LCDHT;
@@ -1962,11 +1796,8 @@ static void XGI_ModCRT1Regs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempbx = 0;
 
 	if (pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
-		LCDPtr = (struct XGI_LVDSCRT1HDataStruct *)
-				XGI_GetLcdPtr(tempbx, ModeNo,
-					      ModeIdIndex,
-					      RefreshRateTableIndex,
-					      pVBInfo);
+		LCDPtr = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+				       RefreshRateTableIndex, pVBInfo);
 
 		for (i = 0; i < 8; i++)
 			pVBInfo->TimingH[0].data[i] = LCDPtr[0].Reg[i];
@@ -1977,13 +1808,8 @@ static void XGI_ModCRT1Regs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempbx = 1;
 
 	if (pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
-		LCDPtr1 = (struct XGI_LVDSCRT1VDataStruct *)
-				XGI_GetLcdPtr(
-					tempbx,
-					ModeNo,
-					ModeIdIndex,
-					RefreshRateTableIndex,
-					pVBInfo);
+		LCDPtr1 = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+					RefreshRateTableIndex, pVBInfo);
 		for (i = 0; i < 7; i++)
 			pVBInfo->TimingV[0].data[i] = LCDPtr1[0].Reg[i];
 	}
@@ -2075,23 +1901,11 @@ static void XGI_SetLVDSRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_ModeFlag;
 	tempbx = 3;
 	if (pVBInfo->LCDInfo & EnableScalingLCD)
-		LCDPtr1 =
-		    (struct XGI330_LCDDataDesStruct2 *)
-				XGI_GetLcdPtr(
-					  tempbx,
-					  ModeNo,
-					  ModeIdIndex,
-					  RefreshRateTableIndex,
-					  pVBInfo);
+		LCDPtr1 = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+					RefreshRateTableIndex, pVBInfo);
 	else
-		LCDPtr =
-		    (struct XGI_LCDDesStruct *)
-				XGI_GetLcdPtr(
-					  tempbx,
-					  ModeNo,
-					  ModeIdIndex,
-					  RefreshRateTableIndex,
-					  pVBInfo);
+		LCDPtr = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+				       RefreshRateTableIndex, pVBInfo);
 
 	XGI_GetLCDSync(&tempax, &tempbx, pVBInfo);
 	push1 = tempbx;
@@ -2438,8 +2252,8 @@ static void XGI_GetVCLKLen(unsigned char tempal, unsigned char *di_0,
 			| VB_SIS301LV | VB_SIS302LV | VB_XGI301C)) {
 		if ((!(pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)) &&
 		    (pVBInfo->SetFlag & ProgrammingCRT2)) {
-			*di_0 = (unsigned char) XGI_VBVCLKData[tempal].SR2B;
-			*di_1 = XGI_VBVCLKData[tempal].SR2C;
+			*di_0 = XGI_VBVCLKData[tempal].Part4_A;
+			*di_1 = XGI_VBVCLKData[tempal].Part4_B;
 		}
 	} else {
 		*di_0 = XGI_VCLKData[tempal].SR2B;
@@ -2634,21 +2448,16 @@ static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 
 	temp = xgifb_reg_get(pVBInfo->P3d4, 0x38);
 
-	if (pVBInfo->IF_DEF_LCDA == 1) {
-
-		if (((HwDeviceExtension->jChipType >= XG20) ||
-		     (HwDeviceExtension->jChipType >= XG40)) &&
-		    (pVBInfo->IF_DEF_LVDS == 0)) {
-			if (pVBInfo->VBType &
-			    (VB_SIS302B |
-			     VB_SIS301LV |
-			     VB_SIS302LV |
-			     VB_XGI301C)) {
-				if (temp & EnableDualEdge) {
-					tempbx |= SetCRT2ToDualEdge;
-					if (temp & SetToLCDA)
-						tempbx |= XGI_SetCRT2ToLCDA;
-				}
+	if (pVBInfo->IF_DEF_LVDS == 0) {
+		if (pVBInfo->VBType &
+		    (VB_SIS302B |
+		     VB_SIS301LV |
+		     VB_SIS302LV |
+		     VB_XGI301C)) {
+			if (temp & EnableDualEdge) {
+				tempbx |= SetCRT2ToDualEdge;
+				if (temp & SetToLCDA)
+					tempbx |= XGI_SetCRT2ToLCDA;
 			}
 		}
 	}
@@ -2687,11 +2496,10 @@ static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 				temp = 0x09FC;
 			else
 				temp = 0x097C;
+		} else if (pVBInfo->IF_DEF_HiVision == 1) {
+			temp = 0x01FC;
 		} else {
-			if (pVBInfo->IF_DEF_HiVision == 1)
-				temp = 0x01FC;
-			else
-				temp = 0x017C;
+			temp = 0x017C;
 		}
 	} else { /* 3nd party chip */
 		temp = SetCRT2ToLCD;
@@ -2702,19 +2510,17 @@ static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 		tempbx = 0;
 	}
 
-	if (pVBInfo->IF_DEF_LCDA == 1) { /* Select Display Device */
-		if (!(pVBInfo->VBType & VB_NoLCD)) {
-			if (tempbx & XGI_SetCRT2ToLCDA) {
-				if (tempbx & SetSimuScanMode)
-					tempbx &= (~(SetCRT2ToLCD |
-						     SetCRT2ToRAMDAC |
-						     SwitchCRT2));
-				else
-					tempbx &= (~(SetCRT2ToLCD |
-						     SetCRT2ToRAMDAC |
-						     SetCRT2ToTV |
-						     SwitchCRT2));
-			}
+	if (!(pVBInfo->VBType & VB_NoLCD)) {
+		if (tempbx & XGI_SetCRT2ToLCDA) {
+			if (tempbx & SetSimuScanMode)
+				tempbx &= (~(SetCRT2ToLCD |
+					     SetCRT2ToRAMDAC |
+					     SwitchCRT2));
+			else
+				tempbx &= (~(SetCRT2ToLCD |
+					     SetCRT2ToRAMDAC |
+					     SetCRT2ToTV |
+					     SwitchCRT2));
 		}
 	}
 
@@ -2777,11 +2583,9 @@ static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 	if (!(tempbx & DisableCRT2Display)) {
 		if ((!(tempbx & DriverMode)) ||
 		    (!(modeflag & CRT2Mode))) {
-			if (pVBInfo->IF_DEF_LCDA == 1) {
-				if (!(tempbx & XGI_SetCRT2ToLCDA))
-					tempbx |= (SetInSlaveMode |
-						   SetSimuScanMode);
-			}
+			if (!(tempbx & XGI_SetCRT2ToLCDA))
+				tempbx |= (SetInSlaveMode |
+					   SetSimuScanMode);
 		}
 
 		/* LCD+TV can't support in slave mode
@@ -2867,19 +2671,17 @@ static void XGI_GetTVInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 			if (pVBInfo->VBInfo & SetCRT2ToHiVision) {
 				if (pVBInfo->VBInfo & SetInSlaveMode)
 					tempbx &= (~RPLLDIV2XO);
-			} else {
-				if (tempbx &
-				    (TVSetYPbPr525p | TVSetYPbPr750p))
+			} else if (tempbx &
+				    (TVSetYPbPr525p | TVSetYPbPr750p)) {
 					tempbx &= (~RPLLDIV2XO);
-				else if (!(pVBInfo->VBType &
+			} else if (!(pVBInfo->VBType &
 					 (VB_SIS301B |
 					  VB_SIS302B |
 					  VB_SIS301LV |
 					  VB_SIS302LV |
 					  VB_XGI301C))) {
-					if (tempbx & TVSimuMode)
-						tempbx &= (~RPLLDIV2XO);
-				}
+				if (tempbx & TVSimuMode)
+					tempbx &= (~RPLLDIV2XO);
 			}
 		}
 	}
@@ -2960,20 +2762,6 @@ static unsigned char XGI_GetLCDInfo(unsigned short ModeNo,
 			tempbx |= SetLCDtoNonExpanding;
 	}
 
-	if (pVBInfo->IF_DEF_ExpLink == 1) {
-		if (modeflag & HalfDCLK) {
-			if (!(tempbx & SetLCDtoNonExpanding)) {
-				tempbx |= XGI_EnableLVDSDDA;
-			} else {
-				if (pVBInfo->LCDResInfo == Panel_1024x768) {
-					if (resinfo == 4) {/* 512x384 */
-						tempbx |= XGI_EnableLVDSDDA;
-					}
-				}
-			}
-		}
-	}
-
 	if (pVBInfo->VBInfo & SetInSlaveMode) {
 		if (pVBInfo->VBInfo & SetNotSimuMode)
 			tempbx |= XGI_LCDVESATiming;
@@ -3122,33 +2910,6 @@ static void XGI_XG27BLSignalVDD(unsigned short tempbh, unsigned short tempbl,
 	xgifb_reg_and_or(pVBInfo->P3d4, 0x48, ~tempbh, tempbl);
 }
 
-/* --------------------------------------------------------------------- */
-/* Function : XGI_XG21SetPanelDelay */
-/* Input : */
-/* Output : */
-/* Description : */
-/* I/P : bl : 1 ; T1 : the duration between CPL on and signal on */
-/* : bl : 2 ; T2 : the duration signal on and Vdd on */
-/* : bl : 3 ; T3 : the duration between CPL off and signal off */
-/* : bl : 4 ; T4 : the duration signal off and Vdd off */
-/* --------------------------------------------------------------------- */
-static void XGI_XG21SetPanelDelay(struct xgifb_video_info *xgifb_info,
-		unsigned short tempbl,
-		struct vb_device_info *pVBInfo)
-{
-	if (tempbl == 1)
-		mdelay(xgifb_info->lvds_data.PSC_S1);
-
-	if (tempbl == 2)
-		mdelay(xgifb_info->lvds_data.PSC_S2);
-
-	if (tempbl == 3)
-		mdelay(xgifb_info->lvds_data.PSC_S3);
-
-	if (tempbl == 4)
-		mdelay(xgifb_info->lvds_data.PSC_S4);
-}
-
 static void XGI_DisplayOn(struct xgifb_video_info *xgifb_info,
 		struct xgi_hw_device_info *pXGIHWDE,
 		struct vb_device_info *pVBInfo)
@@ -3160,12 +2921,12 @@ static void XGI_DisplayOn(struct xgifb_video_info *xgifb_info,
 			if (!(XGI_XG21GetPSCValue(pVBInfo) & 0x1)) {
 				/* LVDS VDD on */
 				XGI_XG21BLSignalVDD(0x01, 0x01, pVBInfo);
-				XGI_XG21SetPanelDelay(xgifb_info, 2, pVBInfo);
+				mdelay(xgifb_info->lvds_data.PSC_S2);
 			}
 			if (!(XGI_XG21GetPSCValue(pVBInfo) & 0x20))
 				/* LVDS signal on */
 				XGI_XG21BLSignalVDD(0x20, 0x20, pVBInfo);
-			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
+			mdelay(xgifb_info->lvds_data.PSC_S3);
 			/* LVDS backlight on */
 			XGI_XG21BLSignalVDD(0x02, 0x02, pVBInfo);
 		} else {
@@ -3180,12 +2941,12 @@ static void XGI_DisplayOn(struct xgifb_video_info *xgifb_info,
 			if (!(XGI_XG27GetPSCValue(pVBInfo) & 0x1)) {
 				/* LVDS VDD on */
 				XGI_XG27BLSignalVDD(0x01, 0x01, pVBInfo);
-				XGI_XG21SetPanelDelay(xgifb_info, 2, pVBInfo);
+				mdelay(xgifb_info->lvds_data.PSC_S2);
 			}
 			if (!(XGI_XG27GetPSCValue(pVBInfo) & 0x20))
 				/* LVDS signal on */
 				XGI_XG27BLSignalVDD(0x20, 0x20, pVBInfo);
-			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
+			mdelay(xgifb_info->lvds_data.PSC_S3);
 			/* LVDS backlight on */
 			XGI_XG27BLSignalVDD(0x02, 0x02, pVBInfo);
 		} else {
@@ -3205,7 +2966,7 @@ void XGI_DisplayOff(struct xgifb_video_info *xgifb_info,
 		if (pVBInfo->IF_DEF_LVDS == 1) {
 			/* LVDS backlight off */
 			XGI_XG21BLSignalVDD(0x02, 0x00, pVBInfo);
-			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
+			mdelay(xgifb_info->lvds_data.PSC_S3);
 		} else {
 			/* DVO/DVI signal off */
 			XGI_XG21BLSignalVDD(0x20, 0x00, pVBInfo);
@@ -3216,7 +2977,7 @@ void XGI_DisplayOff(struct xgifb_video_info *xgifb_info,
 		if ((XGI_XG27GetPSCValue(pVBInfo) & 0x2)) {
 			/* LVDS backlight off */
 			XGI_XG27BLSignalVDD(0x02, 0x00, pVBInfo);
-			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
+			mdelay(xgifb_info->lvds_data.PSC_S3);
 		}
 
 		if (pVBInfo->IF_DEF_LVDS == 0)
@@ -3378,7 +3139,6 @@ static void XGI_GetCRT2Data(unsigned short ModeNo, unsigned short ModeIdIndex,
 	unsigned short tempax = 0, tempbx, modeflag, resinfo;
 
 	struct SiS_LCDData *LCDPtr = NULL;
-	struct SiS_TVData *TVPtr = NULL;
 
 	/* si+Ext_ResInfo */
 	modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_ModeFlag;
@@ -3395,9 +3155,8 @@ static void XGI_GetCRT2Data(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempbx = 4;
 
 	if (pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
-		LCDPtr = (struct SiS_LCDData *) XGI_GetLcdPtr(tempbx,
-				ModeNo, ModeIdIndex, RefreshRateTableIndex,
-				pVBInfo);
+		LCDPtr = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+				       RefreshRateTableIndex, pVBInfo);
 
 		pVBInfo->RVBHCMAX = LCDPtr->RVBHCMAX;
 		pVBInfo->RVBHCFACT = LCDPtr->RVBHCFACT;
@@ -3479,10 +3238,10 @@ static void XGI_GetCRT2Data(unsigned short ModeNo, unsigned short ModeIdIndex,
 	}
 
 	if (pVBInfo->VBInfo & (SetCRT2ToTV)) {
-		tempbx = 4;
-		TVPtr = (struct SiS_TVData *) XGI_GetTVPtr(tempbx,
-				ModeNo, ModeIdIndex, RefreshRateTableIndex,
-				pVBInfo);
+		struct SiS_TVData const *TVPtr;
+
+		TVPtr = XGI_GetTVPtr(ModeNo, ModeIdIndex, RefreshRateTableIndex,
+				     pVBInfo);
 
 		pVBInfo->RVBHCMAX = TVPtr->RVBHCMAX;
 		pVBInfo->RVBHCFACT = TVPtr->RVBHCFACT;
@@ -3882,16 +3641,9 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 				| VB_SIS302LV | VB_XGI301C)))
 			temp += 2;
 
-		if (pVBInfo->VBInfo & SetCRT2ToHiVision) {
-			if (pVBInfo->VBType & VB_SIS301LV) {
-				if (pVBInfo->VBExtInfo == VB_YPbPr1080i) {
-					if (resinfo == 7)
-						temp -= 2;
-				}
-			} else if (resinfo == 7) {
+		if ((pVBInfo->VBInfo & SetCRT2ToHiVision) &&
+		    !(pVBInfo->VBType & VB_SIS301LV) && (resinfo == 7))
 				temp -= 2;
-			}
-		}
 	}
 
 	/* 0x05 Horizontal Display Start */
@@ -4061,18 +3813,16 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 		} else {
 			tempbx -= 10;
 		}
-	} else {
-		if (pVBInfo->TVInfo & TVSimuMode) {
-			if (pVBInfo->TVInfo & TVSetPAL) {
-				if (pVBInfo->VBType & VB_SIS301LV) {
-					if (!(pVBInfo->TVInfo &
-					    (TVSetYPbPr525p |
-					     TVSetYPbPr750p |
-					     TVSetHiVision)))
-						tempbx += 40;
-				} else {
+	} else if (pVBInfo->TVInfo & TVSimuMode) {
+		if (pVBInfo->TVInfo & TVSetPAL) {
+			if (pVBInfo->VBType & VB_SIS301LV) {
+				if (!(pVBInfo->TVInfo &
+				    (TVSetYPbPr525p |
+				     TVSetYPbPr750p |
+				     TVSetHiVision)))
 					tempbx += 40;
-				}
+			} else {
+				tempbx += 40;
 			}
 		}
 	}
@@ -4154,7 +3904,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 {
 	unsigned short i, j, tempax, tempbx, tempcx, temp, push1, push2,
 			modeflag, resinfo, crt2crtc;
-	unsigned char *TimingPoint;
+	unsigned char const *TimingPoint;
 
 	unsigned long longtemp, tempeax, tempebx, temp2, tempecx;
 
@@ -4186,33 +3936,33 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempax = (tempax & 0xff00) >> 8;
 
 	xgifb_reg_set(pVBInfo->Part2Port, 0x0, tempax);
-	TimingPoint = pVBInfo->NTSCTiming;
+	TimingPoint = XGI330_NTSCTiming;
 
 	if (pVBInfo->TVInfo & TVSetPAL)
-		TimingPoint = pVBInfo->PALTiming;
+		TimingPoint = XGI330_PALTiming;
 
 	if (pVBInfo->VBInfo & SetCRT2ToHiVision) {
-		TimingPoint = pVBInfo->HiTVExtTiming;
+		TimingPoint = XGI330_HiTVExtTiming;
 
 		if (pVBInfo->VBInfo & SetInSlaveMode)
-			TimingPoint = pVBInfo->HiTVSt2Timing;
+			TimingPoint = XGI330_HiTVSt2Timing;
 
 		if (pVBInfo->SetFlag & TVSimuMode)
-			TimingPoint = pVBInfo->HiTVSt1Timing;
+			TimingPoint = XGI330_HiTVSt1Timing;
 
 		if (!(modeflag & Charx8Dot))
-			TimingPoint = pVBInfo->HiTVTextTiming;
+			TimingPoint = XGI330_HiTVTextTiming;
 	}
 
 	if (pVBInfo->VBInfo & SetCRT2ToYPbPr525750) {
 		if (pVBInfo->TVInfo & TVSetYPbPr525i)
-			TimingPoint = pVBInfo->YPbPr525iTiming;
+			TimingPoint = XGI330_YPbPr525iTiming;
 
 		if (pVBInfo->TVInfo & TVSetYPbPr525p)
-			TimingPoint = pVBInfo->YPbPr525pTiming;
+			TimingPoint = XGI330_YPbPr525pTiming;
 
 		if (pVBInfo->TVInfo & TVSetYPbPr750p)
-			TimingPoint = pVBInfo->YPbPr750pTiming;
+			TimingPoint = XGI330_YPbPr750pTiming;
 	}
 
 	for (i = 0x01, j = 0; i <= 0x2D; i++, j++)
@@ -4385,11 +4135,9 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 						temp += 1;
 				}
 			}
-		} else {
-			if (pVBInfo->VBInfo & SetInSlaveMode) {
-				if (ModeNo == 0x2f)
-					temp += 1;
-			}
+		} else if (pVBInfo->VBInfo & SetInSlaveMode) {
+			if (ModeNo == 0x2f)
+				temp += 1;
 		}
 	}
 
@@ -4644,8 +4392,8 @@ static void XGI_SetLCDRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 
 	/* Customized LCDB Des no add */
 	tempbx = 5;
-	LCDBDesPtr = (struct XGI_LCDDesStruct *) XGI_GetLcdPtr(tempbx, ModeNo,
-			ModeIdIndex, RefreshRateTableIndex, pVBInfo);
+	LCDBDesPtr = XGI_GetLcdPtr(tempbx, ModeNo, ModeIdIndex,
+				   RefreshRateTableIndex, pVBInfo);
 	tempah = pVBInfo->LCDResInfo;
 	tempah &= PanelResInfo;
 
@@ -4876,7 +4624,7 @@ static void XGI_SetGroup3(unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned short i;
-	unsigned char *tempdi;
+	unsigned char const *tempdi;
 	unsigned short modeflag;
 
 	/* si+Ext_ResInfo */
@@ -4905,18 +4653,18 @@ static void XGI_SetGroup3(unsigned short ModeNo, unsigned short ModeIdIndex,
 		if (pVBInfo->TVInfo & TVSetYPbPr525i)
 			return;
 
-		tempdi = pVBInfo->HiTVGroup3Data;
+		tempdi = XGI330_HiTVGroup3Data;
 		if (pVBInfo->SetFlag & TVSimuMode) {
-			tempdi = pVBInfo->HiTVGroup3Simu;
+			tempdi = XGI330_HiTVGroup3Simu;
 			if (!(modeflag & Charx8Dot))
-				tempdi = pVBInfo->HiTVGroup3Text;
+				tempdi = XGI330_HiTVGroup3Text;
 		}
 
 		if (pVBInfo->TVInfo & TVSetYPbPr525p)
-			tempdi = pVBInfo->Ren525pGroup3;
+			tempdi = XGI330_Ren525pGroup3;
 
 		if (pVBInfo->TVInfo & TVSetYPbPr750p)
-			tempdi = pVBInfo->Ren750pGroup3;
+			tempdi = XGI330_Ren750pGroup3;
 
 		for (i = 0; i <= 0x3E; i++)
 			xgifb_reg_set(pVBInfo->Part3Port, i, tempdi[i]);
@@ -5054,13 +4802,11 @@ static void XGI_SetGroup4(unsigned short ModeNo, unsigned short ModeIdIndex,
 		if (pVBInfo->VBInfo & SetCRT2ToLCD) {
 			if (tempax > 800)
 				tempax -= 800;
-		} else {
-			if (pVBInfo->VGAHDE > 800) {
-				if (pVBInfo->VGAHDE == 1024)
-					tempax = (tempax * 25 / 32) - 1;
-				else
-					tempax = (tempax * 20 / 32) - 1;
-			}
+		} else if (pVBInfo->VGAHDE > 800) {
+			if (pVBInfo->VGAHDE == 1024)
+				tempax = (tempax * 25 / 32) - 1;
+			else
+				tempax = (tempax * 20 / 32) - 1;
 		}
 		tempax -= 1;
 
@@ -5101,9 +4847,7 @@ static void XGI_SetGroup4(unsigned short ModeNo, unsigned short ModeIdIndex,
 	}
 	/* end 301b */
 
-	if (pVBInfo->ISXPDOS == 0)
-		XGI_SetCRT2VCLK(ModeNo, ModeIdIndex, RefreshRateTableIndex,
-				pVBInfo);
+	XGI_SetCRT2VCLK(ModeNo, ModeIdIndex, RefreshRateTableIndex, pVBInfo);
 }
 
 static void XGINew_EnableCRT2(struct vb_device_info *pVBInfo)
@@ -6414,12 +6158,10 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
 			if (pVBInfo->SetFlag & EnableChA) {
 				/* Power on */
 				xgifb_reg_set(pVBInfo->Part1Port, 0x1E, 0x20);
-			} else {
-				if (pVBInfo->VBInfo & SetCRT2ToDualEdge) {
-					/* Power on */
-					xgifb_reg_set(pVBInfo->Part1Port,
-							0x1E, 0x20);
-				}
+			} else if (pVBInfo->VBInfo & SetCRT2ToDualEdge) {
+				/* Power on */
+				xgifb_reg_set(pVBInfo->Part1Port,
+						0x1E, 0x20);
 			}
 		}
 
@@ -6607,7 +6349,6 @@ unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
 	struct vb_device_info *pVBInfo = &VBINF;
 	pVBInfo->BaseAddr = xgifb_info->vga_base;
 	pVBInfo->IF_DEF_LVDS = 0;
-	pVBInfo->IF_DEF_LCDA = 1;
 
 	if (HwDeviceExtension->jChipType >= XG20) {
 		pVBInfo->IF_DEF_YPbPr = 0;
@@ -6678,16 +6419,14 @@ unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
 				XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
 						HwDeviceExtension, pVBInfo);
 			}
-		} else {
-			if (!(pVBInfo->VBInfo & SwitchCRT2)) {
-				XGI_SetCRT1Group(xgifb_info,
-						HwDeviceExtension, ModeNo,
-						ModeIdIndex, pVBInfo);
-				if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
-					XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
-							HwDeviceExtension,
-							pVBInfo);
-				}
+		} else if (!(pVBInfo->VBInfo & SwitchCRT2)) {
+			XGI_SetCRT1Group(xgifb_info,
+					HwDeviceExtension, ModeNo,
+					ModeIdIndex, pVBInfo);
+			if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
+				XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
+						HwDeviceExtension,
+						pVBInfo);
 			}
 		}
 
diff --git a/drivers/staging/xgifb/vb_struct.h b/drivers/staging/xgifb/vb_struct.h
index 22c8eb9810d..70158c2c68a 100644
--- a/drivers/staging/xgifb/vb_struct.h
+++ b/drivers/staging/xgifb/vb_struct.h
@@ -43,13 +43,6 @@ struct XGI_LCDDesStruct {
 	unsigned short LCDVRS;
 };
 
-struct XGI_LCDDataTablStruct {
-	unsigned char  PANELID;
-	unsigned short MASK;
-	unsigned short CAP;
-	unsigned short DATAPTR;
-};
-
 struct XGI330_LCDDataDesStruct2 {
 	unsigned short LCDHDES;
 	unsigned short LCDHRS;
@@ -59,19 +52,6 @@ struct XGI330_LCDDataDesStruct2 {
 	unsigned short LCDVSync;
 };
 
-
-struct XGI330_TVDataStruct {
-	unsigned short RVBHCMAX;
-	unsigned short RVBHCFACT;
-	unsigned short VGAHT;
-	unsigned short VGAVT;
-	unsigned short TVHDE;
-	unsigned short TVVDE;
-	unsigned short RVBHRS;
-	unsigned char FlickerMode;
-	unsigned short HALFRVBHRS;
-};
-
 struct XGI330_LCDDataTablStruct {
 	unsigned char  PANELID;
 	unsigned short MASK;
@@ -82,7 +62,7 @@ struct XGI330_LCDDataTablStruct {
 struct XGI330_TVDataTablStruct {
 	unsigned short MASK;
 	unsigned short CAP;
-	unsigned short DATAPTR;
+	struct SiS_TVData const *DATAPTR;
 };
 
 
@@ -137,10 +117,10 @@ struct XGI21_LVDSCapStruct {
 	unsigned short LVDSVSYNC;
 	unsigned char  VCLKData1;
 	unsigned char  VCLKData2;
-	unsigned char  PSC_S1;
-	unsigned char  PSC_S2;
-	unsigned char  PSC_S3;
-	unsigned char  PSC_S4;
+	unsigned char  PSC_S1; /* Duration between CPL on and signal on */
+	unsigned char  PSC_S2; /* Duration signal on and Vdd on */
+	unsigned char  PSC_S3; /* Duration between CPL off and signal off */
+	unsigned char  PSC_S4; /* Duration signal off and Vdd off */
 	unsigned char  PSC_S5;
 };
 
@@ -155,7 +135,6 @@ struct XGI301C_Tap4TimingStruct {
 };
 
 struct vb_device_info {
-	unsigned char  ISXPDOS;
 	unsigned long   P3c4, P3d4, P3c0, P3ce, P3c2, P3cc;
 	unsigned long   P3ca, P3c6, P3c7, P3c8, P3c9, P3da;
 	unsigned long   Part0Port, Part1Port, Part2Port;
@@ -168,12 +147,10 @@ struct vb_device_info {
 	unsigned short   ModeType;
 	unsigned short   IF_DEF_LVDS, IF_DEF_TRUMPION, IF_DEF_DSTN;
 	unsigned short   IF_DEF_CRT2Monitor;
-	unsigned short   IF_DEF_LCDA, IF_DEF_YPbPr;
-	unsigned short   IF_DEF_ExpLink;
+	unsigned short   IF_DEF_YPbPr;
 	unsigned short   IF_DEF_HiVision;
 	unsigned short   LCDResInfo, LCDTypeInfo, VBType;/*301b*/
 	unsigned short   VBInfo, TVInfo, LCDInfo;
-	unsigned short   VBExtInfo;/*301lv*/
 	unsigned short   SetFlag;
 	unsigned short   NewFlickerMode;
 	unsigned short   SelectCRT2Rate;
@@ -197,20 +174,6 @@ struct vb_device_info {
 	struct SiS_MCLKData  *MCLKData;
 	struct XGI_ECLKDataStruct  *ECLKData;
 
-	unsigned char   *NTSCTiming;
-	unsigned char   *PALTiming;
-	unsigned char   *HiTVExtTiming;
-	unsigned char   *HiTVSt1Timing;
-	unsigned char   *HiTVSt2Timing;
-	unsigned char   *HiTVTextTiming;
-	unsigned char   *YPbPr750pTiming;
-	unsigned char   *YPbPr525pTiming;
-	unsigned char   *YPbPr525iTiming;
-	unsigned char   *HiTVGroup3Data;
-	unsigned char   *HiTVGroup3Simu;
-	unsigned char   *HiTVGroup3Text;
-	unsigned char   *Ren525pGroup3;
-	unsigned char   *Ren750pGroup3;
 	unsigned char   *ScreenOffset;
 	unsigned char   *pXGINew_DRAMTypeDefinition;
 	unsigned char   XGINew_CR97;
diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h
index 1c168461411..180aae042ce 100644
--- a/drivers/staging/xgifb/vb_table.h
+++ b/drivers/staging/xgifb/vb_table.h
@@ -403,13 +403,6 @@ static struct XGI_CRT1TableStruct XGI_CRT1Table[] = {
 	  0x03, 0xDE, 0xC0, 0x84, 0xBF, 0x04, 0x90} }  /* 0x47 */
 };
 
-static unsigned char XGI_CH7017LV1024x768[] = {
-	0x60, 0x02, 0x00, 0x07, 0x40, 0xED,
-	0xA3, 0xC8, 0xC7, 0xAC, 0xE0, 0x02};
-static unsigned char XGI_CH7017LV1400x1050[] = {
-	0x60, 0x03, 0x11, 0x00, 0x40, 0xE3,
-	0xAD, 0xDB, 0xF6, 0xAC, 0xE0, 0x02};
-
 /*add for new UNIVGABIOS*/
 static struct SiS_LCDData  XGI_StLCD1024x768Data[] = {
 	{62,  25, 800,  546, 1344, 806},
@@ -525,18 +518,7 @@ static struct SiS_LCDData  XGI_StLCD1600x1200Data[] = {
 	{1,   1,  2160, 1250, 2160, 1250}  /* 09 (1600x1200) */
 };
 
-static struct SiS_LCDData  XGI_CetLCD1400x1050Data[] = {
-	{1, 1, 1688, 1066, 1688, 1066}, /* 00 (320x200,320x400,
-					       640x200,640x400) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 01 (320x350,640x350) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 02 (360x400,720x400) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 03 (720x350) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 04 (640x480x60Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 05 (800x600x60Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 06 (1024x768x60Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* 07 (1280x1024x60Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}  /* 08 (1400x1050x60Hz) */
-};
+#define XGI_CetLCD1400x1050Data XGI_CetLCD1280x1024Data
 
 static struct SiS_LCDData  XGI_NoScalingData[] = {
 	{1, 1, 800,  449,  800,  449},
@@ -583,17 +565,7 @@ static struct SiS_LCDData xgifb_lcd_1280x1024x75[] = {
 	{1,   1,   1688, 1066, 1688, 1066}  /* ; 07 (1280x1024x75Hz) */
 };
 
-static struct SiS_LCDData  XGI_CetLCD1280x1024x75Data[] = {
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 00 (320x200,320x400,
-						 640x200,640x400) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 01 (320x350,640x350) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 02 (360x400,720x400) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 03 (720x350) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 04 (640x480x75Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 05 (800x600x75Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}, /* ; 06 (1024x768x75Hz) */
-	{1, 1, 1688, 1066, 1688, 1066}  /* ; 07 (1280x1024x75Hz) */
-};
+#define XGI_CetLCD1280x1024x75Data XGI_CetLCD1280x1024Data
 
 static struct SiS_LCDData  XGI_NoScalingDatax75[] = {
 	{1, 1, 800,  449,  800,  449},  /* ; 00 (320x200, 320x400,
@@ -903,7 +875,7 @@ static struct XGI330_LCDDataDesStruct2 XGI_NoScalingDesDatax75[] =  {
 	{9, 1337, 0,   771,  112, 6}  /* ; 0A (1280x768x60Hz) */
 };
 
-static struct XGI330_TVDataStruct  XGI_StPALData[] = {
+static const struct SiS_TVData XGI_StPALData[] = {
 	{1, 1, 864, 525, 1270, 400, 100, 0, 760},
 	{1, 1, 864, 525, 1270, 350, 100, 0, 760},
 	{1, 1, 864, 525, 1270, 400,   0, 0, 720},
@@ -912,7 +884,7 @@ static struct XGI330_TVDataStruct  XGI_StPALData[] = {
 	{1, 1, 864, 525, 1270, 600,  50, 0,   0}
 };
 
-static struct XGI330_TVDataStruct  XGI_ExtPALData[] = {
+static const struct SiS_TVData XGI_ExtPALData[] = {
 	{2,  1, 1080, 463, 1270, 500,  50, 0,  50},
 	{15, 7, 1152, 413, 1270, 500,  50, 0,  50},
 	{2,  1, 1080, 463, 1270, 500,  50, 0,  50},
@@ -923,7 +895,7 @@ static struct XGI330_TVDataStruct  XGI_ExtPALData[] = {
 	{3,  2, 1080, 619, 1270, 540, 438, 0, 438}
 };
 
-static struct XGI330_TVDataStruct  XGI_StNTSCData[] = {
+static const struct SiS_TVData XGI_StNTSCData[] = {
 	{1, 1, 858, 525, 1270, 400, 50, 0, 760},
 	{1, 1, 858, 525, 1270, 350, 50, 0, 640},
 	{1, 1, 858, 525, 1270, 400,  0, 0, 720},
@@ -931,7 +903,7 @@ static struct XGI330_TVDataStruct  XGI_StNTSCData[] = {
 	{1, 1, 858, 525, 1270, 480,  0, 0, 760}
 };
 
-static struct XGI330_TVDataStruct  XGI_ExtNTSCData[] = {
+static const struct SiS_TVData XGI_ExtNTSCData[] = {
 	{9,     5, 1001, 453, 1270, 420, 171, 0, 171},
 	{12,    5,  858, 403, 1270, 420, 171, 0, 171},
 	{9,     5, 1001, 453, 1270, 420, 171, 0, 171},
@@ -943,7 +915,7 @@ static struct XGI330_TVDataStruct  XGI_ExtNTSCData[] = {
 	{3,     2, 1001, 533, 1270, 420,   0, 0,   0}
 };
 
-static struct XGI330_TVDataStruct  XGI_St1HiTVData[] = {
+static const struct SiS_TVData XGI_St1HiTVData[] = {
 	{1, 1, 892,  563, 690,  800, 0,     0, 0}, /* 00 (320x200,320x400,
 							  640x200,640x400) */
 	{1, 1, 892,  563, 690,  700, 0,     0, 0}, /* 01 (320x350,640x350) */
@@ -953,7 +925,7 @@ static struct XGI330_TVDataStruct  XGI_St1HiTVData[] = {
 	{8, 5, 1050, 683, 1648, 960, 0x150, 1, 0}  /* 05 (400x300,800x600) */
 };
 
-static struct XGI330_TVDataStruct  XGI_St2HiTVData[] = {
+static const struct SiS_TVData XGI_St2HiTVData[] = {
 	{3, 1, 840,  483, 1648, 960, 0x032, 0, 0}, /* 00 (320x200,320x400,
 							  640x200,640x400) */
 	{1, 1, 892,  563, 690,  700, 0,     0, 0}, /* 01 (320x350,640x350) */
@@ -963,7 +935,7 @@ static struct XGI330_TVDataStruct  XGI_St2HiTVData[] = {
 	{8, 5, 1050, 683, 1648, 960, 0x17C, 1, 0}  /* 05 (400x300,800x600) */
 };
 
-static struct XGI330_TVDataStruct  XGI_ExtHiTVData[] = {
+static const struct SiS_TVData XGI_ExtHiTVData[] = {
 	{6,  1,  840,  563,  1632, 960, 0,     0, 0}, /* 00 (320x200,320x400,
 							     640x200,640x400) */
 	{3,  1,  960,  563,  1632, 960, 0,     0, 0}, /* 01 (320x350,640x350) */
@@ -978,7 +950,7 @@ static struct XGI330_TVDataStruct  XGI_ExtHiTVData[] = {
 	{8,  5,  1750, 803,  1648, 960, 0x128, 0, 0}  /* 0A (1280x720) */
 };
 
-static struct XGI330_TVDataStruct  XGI_ExtYPbPr525iData[] = {
+static const struct SiS_TVData XGI_ExtYPbPr525iData[] = {
 	{  9,  5,  1001, 453, 1270, 420, 171,   0, 171},
 	{ 12,  5,   858, 403, 1270, 420, 171,   0, 171},
 	{  9,  5,  1001, 453, 1270, 420, 171,   0, 171},
@@ -990,7 +962,7 @@ static struct XGI330_TVDataStruct  XGI_ExtYPbPr525iData[] = {
 	{  3,   2, 1001, 533, 1250, 420,   0,   0,   0}
 };
 
-static struct XGI330_TVDataStruct  XGI_StYPbPr525iData[] = {
+static const struct SiS_TVData XGI_StYPbPr525iData[] = {
 	{1, 1, 858, 525, 1270, 400, 50, 0, 760},
 	{1, 1, 858, 525, 1270, 350, 50, 0, 640},
 	{1, 1, 858, 525, 1270, 400,  0, 0, 720},
@@ -998,7 +970,7 @@ static struct XGI330_TVDataStruct  XGI_StYPbPr525iData[] = {
 	{1, 1, 858, 525, 1270, 480,  0, 0, 760},
 };
 
-static struct XGI330_TVDataStruct  XGI_ExtYPbPr525pData[] = {
+static const struct SiS_TVData XGI_ExtYPbPr525pData[] = {
 	{  9,   5,  1001, 453, 1270, 420, 171, 0, 171},
 	{ 12,   5,   858, 403, 1270, 420, 171, 0, 171},
 	{  9,   5,  1001, 453, 1270, 420, 171, 0, 171},
@@ -1010,7 +982,7 @@ static struct XGI330_TVDataStruct  XGI_ExtYPbPr525pData[] = {
 	{  3,   2,  1001, 533, 1270, 420,   0, 0,   0}
 };
 
-static struct XGI330_TVDataStruct  XGI_StYPbPr525pData[] = {
+static const struct SiS_TVData XGI_StYPbPr525pData[] = {
 	{1, 1, 1716, 525, 1270, 400, 50, 0, 760},
 	{1, 1, 1716, 525, 1270, 350, 50, 0, 640},
 	{1, 1, 1716, 525, 1270, 400,  0, 0, 720},
@@ -1018,7 +990,7 @@ static struct XGI330_TVDataStruct  XGI_StYPbPr525pData[] = {
 	{1, 1, 1716, 525, 1270, 480,  0, 0, 760},
 };
 
-static struct XGI330_TVDataStruct  XGI_ExtYPbPr750pData[] = {
+static const struct SiS_TVData XGI_ExtYPbPr750pData[] = {
 	{ 3, 1,  935, 470, 1130, 680,  50, 0, 0}, /* 00 (320x200,320x400,
 							 640x200,640x400) */
 	{24, 7,  935, 420, 1130, 680,  50, 0, 0}, /* 01 (320x350,640x350) */
@@ -1033,7 +1005,7 @@ static struct XGI330_TVDataStruct  XGI_ExtYPbPr750pData[] = {
 	{10, 9, 1320, 830, 1130, 640,  50, 0, 0}
 };
 
-static struct XGI330_TVDataStruct  XGI_StYPbPr750pData[] = {
+static const struct SiS_TVData XGI_StYPbPr750pData[] = {
 	{1, 1, 1650, 750, 1280, 400, 50, 0, 760},
 	{1, 1, 1650, 750, 1280, 350, 50, 0, 640},
 	{1, 1, 1650, 750, 1280, 400,  0, 0, 720},
@@ -1041,7 +1013,7 @@ static struct XGI330_TVDataStruct  XGI_StYPbPr750pData[] = {
 	{1, 1, 1650, 750, 1280, 480,  0, 0, 760},
 };
 
-static unsigned char XGI330_NTSCTiming[] = {
+static const unsigned char XGI330_NTSCTiming[] = {
 	0x17, 0x1d, 0x03, 0x09, 0x05, 0x06, 0x0c, 0x0c,
 	0x94, 0x49, 0x01, 0x0a, 0x06, 0x0d, 0x04, 0x0a,
 	0x06, 0x14, 0x0d, 0x04, 0x0a, 0x00, 0x85, 0x1b,
@@ -1052,7 +1024,7 @@ static unsigned char XGI330_NTSCTiming[] = {
 	0x00, 0x40, 0x44, 0x00, 0xdb, 0x02, 0x3b, 0x00
 };
 
-static unsigned char XGI330_PALTiming[] = {
+static const unsigned char XGI330_PALTiming[] = {
 	0x21, 0x5A, 0x35, 0x6e, 0x04, 0x38, 0x3d, 0x70,
 	0x94, 0x49, 0x01, 0x12, 0x06, 0x3e, 0x35, 0x6d,
 	0x06, 0x14, 0x3e, 0x35, 0x6d, 0x00, 0x45, 0x2b,
@@ -1063,7 +1035,7 @@ static unsigned char XGI330_PALTiming[] = {
 	0x00, 0x40, 0x3e, 0x00, 0xe1, 0x02, 0x28, 0x00
 };
 
-static unsigned char XGI330_HiTVExtTiming[] = {
+static const unsigned char XGI330_HiTVExtTiming[] = {
 	0x2D, 0x60, 0x2C, 0x5F, 0x08, 0x31, 0x3A, 0x64,
 	0x28, 0x02, 0x01, 0x3D, 0x06, 0x3E, 0x35, 0x6D,
 	0x06, 0x14, 0x3E, 0x35, 0x6D, 0x00, 0xC5, 0x3F,
@@ -1075,7 +1047,7 @@ static unsigned char XGI330_HiTVExtTiming[] = {
 	0x27, 0x00, 0xfc, 0xff, 0x6a, 0x00
 };
 
-static unsigned char XGI330_HiTVSt1Timing[] = {
+static const unsigned char XGI330_HiTVSt1Timing[] = {
 	0x32, 0x65, 0x2C, 0x5F, 0x08, 0x31, 0x3A, 0x65,
 	0x28, 0x02, 0x01, 0x3D, 0x06, 0x3E, 0x35, 0x6D,
 	0x06, 0x14, 0x3E, 0x35, 0x6D, 0x00, 0xC5, 0x3F,
@@ -1087,7 +1059,7 @@ static unsigned char XGI330_HiTVSt1Timing[] = {
 	0x0E, 0x00, 0xfc, 0xff, 0x2d, 0x00
 };
 
-static unsigned char XGI330_HiTVSt2Timing[] = {
+static const unsigned char XGI330_HiTVSt2Timing[] = {
 	0x32, 0x65, 0x2C, 0x5F, 0x08, 0x31, 0x3A, 0x64,
 	0x28, 0x02, 0x01, 0x3D, 0x06, 0x3E, 0x35, 0x6D,
 	0x06, 0x14, 0x3E, 0x35, 0x6D, 0x00, 0xC5, 0x3F,
@@ -1099,7 +1071,7 @@ static unsigned char XGI330_HiTVSt2Timing[] = {
 	0x27, 0x00, 0xFC, 0xff, 0x6a, 0x00
 };
 
-static unsigned char XGI330_HiTVTextTiming[] = {
+static const unsigned char XGI330_HiTVTextTiming[] = {
 	0x32, 0x65, 0x2C, 0x5F, 0x08, 0x31, 0x3A, 0x65,
 	0x28, 0x02, 0x01, 0x3D, 0x06, 0x3E, 0x35, 0x6D,
 	0x06, 0x14, 0x3E, 0x35, 0x6D, 0x00, 0xC5, 0x3F,
@@ -1111,7 +1083,7 @@ static unsigned char XGI330_HiTVTextTiming[] = {
 	0x11, 0x00, 0xFC, 0xFF, 0x32, 0x00
 };
 
-static unsigned char XGI330_YPbPr750pTiming[] = {
+static const unsigned char XGI330_YPbPr750pTiming[] = {
 	0x30, 0x1d, 0xe8, 0x09, 0x09, 0xed, 0x0c, 0x0c,
 	0x98, 0x0a, 0x01, 0x0c, 0x06, 0x0d, 0x04, 0x0a,
 	0x06, 0x14, 0x0d, 0x04, 0x0a, 0x00, 0x85, 0x3f,
@@ -1123,7 +1095,7 @@ static unsigned char XGI330_YPbPr750pTiming[] = {
 	0x11, 0x00, 0xfc, 0xff, 0x32, 0x00
 };
 
-static unsigned char XGI330_YPbPr525pTiming[] = {
+static const unsigned char XGI330_YPbPr525pTiming[] = {
 	0x3E, 0x11, 0x06, 0x09, 0x0b, 0x0c, 0x0c, 0x0c,
 	0x98, 0x0a, 0x01, 0x0d, 0x06, 0x0d, 0x04, 0x0a,
 	0x06, 0x14, 0x0d, 0x04, 0x0a, 0x00, 0x85, 0x3f,
@@ -1135,7 +1107,7 @@ static unsigned char XGI330_YPbPr525pTiming[] = {
 	0x11, 0x00, 0xFC, 0xFF, 0x32, 0x00
 };
 
-static unsigned char XGI330_YPbPr525iTiming[] = {
+static const unsigned char XGI330_YPbPr525iTiming[] = {
 	0x1B, 0x21, 0x03, 0x09, 0x05, 0x06, 0x0C, 0x0C,
 	0x94, 0x49, 0x01, 0x0A, 0x06, 0x0D, 0x04, 0x0A,
 	0x06, 0x14, 0x0D, 0x04, 0x0A, 0x00, 0x85, 0x1B,
@@ -1147,7 +1119,7 @@ static unsigned char XGI330_YPbPr525iTiming[] = {
 	0x44, 0x00, 0xDB, 0x02, 0x3B, 0x00
 };
 
-static unsigned char XGI330_HiTVGroup3Data[] = {
+static const unsigned char XGI330_HiTVGroup3Data[] = {
 	0x00, 0x1A, 0x22, 0x63, 0x62, 0x22, 0x08, 0x5F,
 	0x05, 0x21, 0xB2, 0xB2, 0x55, 0x77, 0x2A, 0xA6,
 	0x25, 0x2F, 0x47, 0xFA, 0xC8, 0xFF, 0x8E, 0x20,
@@ -1158,7 +1130,7 @@ static unsigned char XGI330_HiTVGroup3Data[] = {
 	0x18, 0x05, 0x18, 0x05, 0x4C, 0xA8, 0x01
 };
 
-static unsigned char XGI330_HiTVGroup3Simu[] = {
+static const unsigned char XGI330_HiTVGroup3Simu[] = {
 	0x00, 0x1A, 0x22, 0x63, 0x62, 0x22, 0x08, 0x95,
 	0xDB, 0x20, 0xB8, 0xB8, 0x55, 0x47, 0x2A, 0xA6,
 	0x25, 0x2F, 0x47, 0xFA, 0xC8, 0xFF, 0x8E, 0x20,
@@ -1169,7 +1141,7 @@ static unsigned char XGI330_HiTVGroup3Simu[] = {
 	0x18, 0x05, 0x18, 0x05, 0x4C, 0xA8, 0x01
 };
 
-static unsigned char XGI330_HiTVGroup3Text[] = {
+static const unsigned char XGI330_HiTVGroup3Text[] = {
 	0x00, 0x1A, 0x22, 0x63, 0x62, 0x22, 0x08, 0xA7,
 	0xF5, 0x20, 0xCE, 0xCE, 0x55, 0x47, 0x2A, 0xA6,
 	0x25, 0x2F, 0x47, 0xFA, 0xC8, 0xFF, 0x8E, 0x20,
@@ -1180,7 +1152,7 @@ static unsigned char XGI330_HiTVGroup3Text[] = {
 	0x18, 0x05, 0x18, 0x05, 0x4C, 0xA8, 0x01
 };
 
-static unsigned char XGI330_Ren525pGroup3[] = {
+static const unsigned char XGI330_Ren525pGroup3[] = {
 	0x00, 0x14, 0x15, 0x25, 0x55, 0x15, 0x0b, 0x13,
 	0xB1, 0x41, 0x62, 0x62, 0xFF, 0xF4, 0x45, 0xa6,
 	0x25, 0x2F, 0x67, 0xF6, 0xbf, 0xFF, 0x8E, 0x20,
@@ -1191,7 +1163,7 @@ static unsigned char XGI330_Ren525pGroup3[] = {
 	0x1a, 0x1F, 0x25, 0x2a, 0x4C, 0xAA, 0x01
 };
 
-static unsigned char XGI330_Ren750pGroup3[] = {
+static const unsigned char XGI330_Ren750pGroup3[] = {
 	0x00, 0x14, 0x15, 0x25, 0x55, 0x15, 0x0b, 0x7a,
 	0x54, 0x41, 0xE7, 0xE7, 0xFF, 0xF4, 0x45, 0xa6,
 	0x25, 0x2F, 0x67, 0xF6, 0xbf, 0xFF, 0x8E, 0x20,
@@ -1236,17 +1208,7 @@ static struct SiS_LVDSData  XGI_LVDS1280x1024Data_1[] = {
 	{1688, 1066, 1688, 1066}
 };
 
-static struct SiS_LVDSData  XGI_LVDS1280x1024Data_2[] = {
-	{1344, 806, 1344, 806},
-	{1344, 806, 1344, 806},
-	{1344, 806, 1344, 806},
-	{1344, 806, 1344, 806},
-	{1344, 806, 1344, 806},
-	{1344, 806, 1344, 806},
-	{1344, 806, 1344, 806},
-	{800,  449, 1280, 801},
-	{800,  525, 1280, 813}
-};
+#define XGI_LVDS1280x1024Data_2 XGI_LVDS1024x768Data_2
 
 static struct SiS_LVDSData  XGI_LVDS1400x1050Data_1[] = {
 	{928,   416, 1688, 1066},
@@ -1532,42 +1494,6 @@ static struct XGI330_LCDDataDesStruct2 XGI_LVDSNoScalingDesDatax75[] = {
 	{0, 1328,   0,  771, 112, 6}  /* ; 0A (1280x768x75Hz) */
 };
 
-static struct SiS_LVDSData  XGI_CHTVUNTSCData[] = {
-	{ 840, 600,  840, 600},
-	{ 840, 600,  840, 600},
-	{ 840, 600,  840, 600},
-	{ 840, 600,  840, 600},
-	{ 784, 600,  784, 600},
-	{1064, 750, 1064, 750}
-};
-
-static struct SiS_LVDSData  XGI_CHTVONTSCData[] = {
-	{ 840, 525,  840, 525},
-	{ 840, 525,  840, 525},
-	{ 840, 525,  840, 525},
-	{ 840, 525,  840, 525},
-	{ 784, 525,  784, 525},
-	{1040, 700, 1040, 700}
-};
-
-static struct SiS_LVDSData  XGI_CHTVUPALData[] = {
-	{1008, 625, 1008, 625},
-	{1008, 625, 1008, 625},
-	{1008, 625, 1008, 625},
-	{1008, 625, 1008, 625},
-	{ 840, 750,  840, 750},
-	{ 936, 836,  936, 836}
-};
-
-static struct SiS_LVDSData  XGI_CHTVOPALData[] = {
-	{1008, 625, 1008, 625},
-	{1008, 625, 1008, 625},
-	{1008, 625, 1008, 625},
-	{1008, 625, 1008, 625},
-	{840,  625,  840, 625},
-	{960,  750,  960, 750}
-};
-
 /* CR00,CR02,CR03,CR04,CR05,SR0B,SR0C,SR0E */
 static struct XGI_LVDSCRT1HDataStruct  XGI_LVDSCRT11024x768_1_H[] = {
 	{ {0x4B, 0x27, 0x8F, 0x32, 0x1B, 0x00, 0x45, 0x00} }, /* 00 (320x) */
@@ -1933,49 +1859,21 @@ static struct XGI330_LCDDataTablStruct XGI_EPLLCDDesDataPtr[] = {
 	{0xFF, 0x0000, 0x0000, 0}
 };
 
-static struct XGI330_LCDDataTablStruct XGI_EPLCHLCDRegPtr[] = {
-	{Panel_1024x768, 0x0000, 0x0000, 0}, /* XGI_CH7017LV1024x768 */
-	{Panel_1400x1050, 0x0000, 0x0000, 1}, /* XGI_CH7017LV1400x1050 */
-	{0xFF, 0x0000, 0x0000, 0}
-};
-
-static struct XGI330_TVDataTablStruct XGI_TVDataTable[] = {
-	{0x09E1, 0x0001, 0}, /* XGI_ExtPALData */
-	{0x09E1, 0x0000, 1}, /* XGI_ExtNTSCData */
-	{0x09E1, 0x0801, 2}, /* XGI_StPALData */
-	{0x09E1, 0x0800, 3}, /* XGI_StNTSCData */
-	{0x49E0, 0x0100, 4}, /* XGI_ExtHiTVData */
-	{0x49E0, 0x4100, 5}, /* XGI_St2HiTVData */
-	{0x49E0, 0x4900, 13}, /* XGI_St1HiTVData */
-	{0x09E0, 0x0020, 6}, /* XGI_ExtYPbPr525iData */
-	{0x09E0, 0x0040, 7}, /* XGI_ExtYPbPr525pData */
-	{0x09E0, 0x0080, 8}, /* XGI_ExtYPbPr750pData */
-	{0x09E0, 0x0820, 9}, /* XGI_StYPbPr525iData */
-	{0x09E0, 0x0840, 10}, /* XGI_StYPbPr525pData */
-	{0x09E0, 0x0880, 11}, /* XGI_StYPbPr750pData */
-	{0xffff, 0x0000, 12}  /* END */
-};
-
-/* Chrontel 7017 TV List */
-static struct XGI330_TVDataTablStruct xgifb_chrontel_tv[] = {
-	{0x0011, 0x0000, 0}, /* UNTSC */
-	{0x0011, 0x0010, 1}, /* ONTSC */
-	{0x0011, 0x0001, 2}, /* UPAL */
-	{0x0011, 0x0011, 3}, /* OPAL */
-	{0xFFFF, 0x0000, 4}
-};
-
-static unsigned short LCDLenList[] = {
-	LVDSCRT1Len_H,
-	LVDSCRT1Len_V,
-	LVDSDataLen,
-	LCDDesDataLen,
-	LCDDataLen,
-	LCDDesDataLen,
-	0,
-	LCDDesDataLen,
-	LCDDesDataLen,
-	0
+static const struct XGI330_TVDataTablStruct XGI_TVDataTable[] = {
+	{0x09E1, 0x0001, XGI_ExtPALData},
+	{0x09E1, 0x0000, XGI_ExtNTSCData},
+	{0x09E1, 0x0801, XGI_StPALData},
+	{0x09E1, 0x0800, XGI_StNTSCData},
+	{0x49E0, 0x0100, XGI_ExtHiTVData},
+	{0x49E0, 0x4100, XGI_St2HiTVData},
+	{0x49E0, 0x4900, XGI_St1HiTVData},
+	{0x09E0, 0x0020, XGI_ExtYPbPr525iData},
+	{0x09E0, 0x0040, XGI_ExtYPbPr525pData},
+	{0x09E0, 0x0080, XGI_ExtYPbPr750pData},
+	{0x09E0, 0x0820, XGI_StYPbPr525iData},
+	{0x09E0, 0x0840, XGI_StYPbPr525pData},
+	{0x09E0, 0x0880, XGI_StYPbPr750pData},
+	{0xffff, 0x0000, XGI_ExtNTSCData},
 };
 
 /* Dual link only */
@@ -2336,7 +2234,7 @@ static struct SiS_VCLKData XGI_VCLKData[] = {
 	{0xFF, 0x00,   0}  /* End mark */
 };
 
-static struct SiS_VCLKData XGI_VBVCLKData[] = {
+static struct SiS_VBVCLKData XGI_VBVCLKData[] = {
 	{0x1B, 0xE1,  25}, /* 00 (25.175MHz) */
 	{0x4E, 0xE4,  28}, /* 01 (28.322MHz) */
 	{0x57, 0xE4,  31}, /* 02 (31.500MHz) */
diff --git a/drivers/staging/zcache/tmem.c b/drivers/staging/zcache/tmem.c
index eaa90213457..56c8e606ad1 100644
--- a/drivers/staging/zcache/tmem.c
+++ b/drivers/staging/zcache/tmem.c
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2009-2011, Dan Magenheimer, Oracle Corp.
  *
- * The primary purpose of Transcedent Memory ("tmem") is to map object-oriented
+ * The primary purpose of Transcendent Memory ("tmem") is to map object-oriented
  * "handles" (triples containing a pool id, and object id, and an index), to
  * pages in a page-accessible memory (PAM).  Tmem references the PAM pages via
  * an abstract "pampd" (PAM page-descriptor), which can be operated on by a
diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c
index c214977b4ab..52b43b7b83d 100644
--- a/drivers/staging/zcache/zcache-main.c
+++ b/drivers/staging/zcache/zcache-main.c
@@ -1251,13 +1251,12 @@ static int zcache_pampd_get_data_and_free(char *data, size_t *bufsize, bool raw,
 					void *pampd, struct tmem_pool *pool,
 					struct tmem_oid *oid, uint32_t index)
 {
-	int ret = 0;
-
 	BUG_ON(!is_ephemeral(pool));
-	zbud_decompress((struct page *)(data), pampd);
+	if (zbud_decompress((struct page *)(data), pampd) < 0)
+		return -EINVAL;
 	zbud_free_and_delist((struct zbud_hdr *)pampd);
 	atomic_dec(&zcache_curr_eph_pampd_count);
-	return ret;
+	return 0;
 }
 
 /*
diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c
index 8b0bcb626a7..09a9d35d436 100644
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -75,9 +75,140 @@
 #include <linux/cpumask.h>
 #include <linux/cpu.h>
 #include <linux/vmalloc.h>
+#include <linux/hardirq.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
 
 #include "zsmalloc.h"
-#include "zsmalloc_int.h"
+
+/*
+ * This must be power of 2 and greater than of equal to sizeof(link_free).
+ * These two conditions ensure that any 'struct link_free' itself doesn't
+ * span more than 1 page which avoids complex case of mapping 2 pages simply
+ * to restore link_free pointer values.
+ */
+#define ZS_ALIGN		8
+
+/*
+ * A single 'zspage' is composed of up to 2^N discontiguous 0-order (single)
+ * pages. ZS_MAX_ZSPAGE_ORDER defines upper limit on N.
+ */
+#define ZS_MAX_ZSPAGE_ORDER 2
+#define ZS_MAX_PAGES_PER_ZSPAGE (_AC(1, UL) << ZS_MAX_ZSPAGE_ORDER)
+
+/*
+ * Object location (<PFN>, <obj_idx>) is encoded as
+ * as single (void *) handle value.
+ *
+ * Note that object index <obj_idx> is relative to system
+ * page <PFN> it is stored in, so for each sub-page belonging
+ * to a zspage, obj_idx starts with 0.
+ *
+ * This is made more complicated by various memory models and PAE.
+ */
+
+#ifndef MAX_PHYSMEM_BITS
+#ifdef CONFIG_HIGHMEM64G
+#define MAX_PHYSMEM_BITS 36
+#else /* !CONFIG_HIGHMEM64G */
+/*
+ * If this definition of MAX_PHYSMEM_BITS is used, OBJ_INDEX_BITS will just
+ * be PAGE_SHIFT
+ */
+#define MAX_PHYSMEM_BITS BITS_PER_LONG
+#endif
+#endif
+#define _PFN_BITS		(MAX_PHYSMEM_BITS - PAGE_SHIFT)
+#define OBJ_INDEX_BITS	(BITS_PER_LONG - _PFN_BITS)
+#define OBJ_INDEX_MASK	((_AC(1, UL) << OBJ_INDEX_BITS) - 1)
+
+#define MAX(a, b) ((a) >= (b) ? (a) : (b))
+/* ZS_MIN_ALLOC_SIZE must be multiple of ZS_ALIGN */
+#define ZS_MIN_ALLOC_SIZE \
+	MAX(32, (ZS_MAX_PAGES_PER_ZSPAGE << PAGE_SHIFT >> OBJ_INDEX_BITS))
+#define ZS_MAX_ALLOC_SIZE	PAGE_SIZE
+
+/*
+ * On systems with 4K page size, this gives 254 size classes! There is a
+ * trader-off here:
+ *  - Large number of size classes is potentially wasteful as free page are
+ *    spread across these classes
+ *  - Small number of size classes causes large internal fragmentation
+ *  - Probably its better to use specific size classes (empirically
+ *    determined). NOTE: all those class sizes must be set as multiple of
+ *    ZS_ALIGN to make sure link_free itself never has to span 2 pages.
+ *
+ *  ZS_MIN_ALLOC_SIZE and ZS_SIZE_CLASS_DELTA must be multiple of ZS_ALIGN
+ *  (reason above)
+ */
+#define ZS_SIZE_CLASS_DELTA	16
+#define ZS_SIZE_CLASSES		((ZS_MAX_ALLOC_SIZE - ZS_MIN_ALLOC_SIZE) / \
+					ZS_SIZE_CLASS_DELTA + 1)
+
+/*
+ * We do not maintain any list for completely empty or full pages
+ */
+enum fullness_group {
+	ZS_ALMOST_FULL,
+	ZS_ALMOST_EMPTY,
+	_ZS_NR_FULLNESS_GROUPS,
+
+	ZS_EMPTY,
+	ZS_FULL
+};
+
+/*
+ * We assign a page to ZS_ALMOST_EMPTY fullness group when:
+ *	n <= N / f, where
+ * n = number of allocated objects
+ * N = total number of objects zspage can store
+ * f = 1/fullness_threshold_frac
+ *
+ * Similarly, we assign zspage to:
+ *	ZS_ALMOST_FULL	when n > N / f
+ *	ZS_EMPTY	when n == 0
+ *	ZS_FULL		when n == N
+ *
+ * (see: fix_fullness_group())
+ */
+static const int fullness_threshold_frac = 4;
+
+struct size_class {
+	/*
+	 * Size of objects stored in this class. Must be multiple
+	 * of ZS_ALIGN.
+	 */
+	int size;
+	unsigned int index;
+
+	/* Number of PAGE_SIZE sized pages to combine to form a 'zspage' */
+	int pages_per_zspage;
+
+	spinlock_t lock;
+
+	/* stats */
+	u64 pages_allocated;
+
+	struct page *fullness_list[_ZS_NR_FULLNESS_GROUPS];
+};
+
+/*
+ * Placed within free objects to form a singly linked list.
+ * For every zspage, first_page->freelist gives head of this list.
+ *
+ * This must be power of 2 and less than or equal to ZS_ALIGN
+ */
+struct link_free {
+	/* Handle of next free chunk (encodes <PFN, obj_idx>) */
+	void *next;
+};
+
+struct zs_pool {
+	struct size_class size_class[ZS_SIZE_CLASSES];
+
+	gfp_t flags;	/* allocation flags used when growing pool */
+	const char *name;
+};
 
 /*
  * A zspage's class index and fullness group
@@ -88,6 +219,30 @@
 #define CLASS_IDX_MASK	((1 << CLASS_IDX_BITS) - 1)
 #define FULLNESS_MASK	((1 << FULLNESS_BITS) - 1)
 
+/*
+ * By default, zsmalloc uses a copy-based object mapping method to access
+ * allocations that span two pages. However, if a particular architecture
+ * 1) Implements local_flush_tlb_kernel_range() and 2) Performs VM mapping
+ * faster than copying, then it should be added here so that
+ * USE_PGTABLE_MAPPING is defined. This causes zsmalloc to use page table
+ * mapping rather than copying
+ * for object mapping.
+*/
+#if defined(CONFIG_ARM)
+#define USE_PGTABLE_MAPPING
+#endif
+
+struct mapping_area {
+#ifdef USE_PGTABLE_MAPPING
+	struct vm_struct *vm; /* vm area for mapping object that span pages */
+#else
+	char *vm_buf; /* copy buffer for objects that span pages */
+#endif
+	char *vm_addr; /* address of kmap_atomic()'ed pages */
+	enum zs_mapmode vm_mm; /* mapping mode */
+};
+
+
 /* per-cpu VM mapping areas for zspage accesses that cross page boundaries */
 static DEFINE_PER_CPU(struct mapping_area, zs_map_area);
 
@@ -470,16 +625,83 @@ static struct page *find_get_zspage(struct size_class *class)
 	return page;
 }
 
-static void zs_copy_map_object(char *buf, struct page *firstpage,
-				int off, int size)
+#ifdef USE_PGTABLE_MAPPING
+static inline int __zs_cpu_up(struct mapping_area *area)
+{
+	/*
+	 * Make sure we don't leak memory if a cpu UP notification
+	 * and zs_init() race and both call zs_cpu_up() on the same cpu
+	 */
+	if (area->vm)
+		return 0;
+	area->vm = alloc_vm_area(PAGE_SIZE * 2, NULL);
+	if (!area->vm)
+		return -ENOMEM;
+	return 0;
+}
+
+static inline void __zs_cpu_down(struct mapping_area *area)
+{
+	if (area->vm)
+		free_vm_area(area->vm);
+	area->vm = NULL;
+}
+
+static inline void *__zs_map_object(struct mapping_area *area,
+				struct page *pages[2], int off, int size)
+{
+	BUG_ON(map_vm_area(area->vm, PAGE_KERNEL, &pages));
+	area->vm_addr = area->vm->addr;
+	return area->vm_addr + off;
+}
+
+static inline void __zs_unmap_object(struct mapping_area *area,
+				struct page *pages[2], int off, int size)
+{
+	unsigned long addr = (unsigned long)area->vm_addr;
+	unsigned long end = addr + (PAGE_SIZE * 2);
+
+	flush_cache_vunmap(addr, end);
+	unmap_kernel_range_noflush(addr, PAGE_SIZE * 2);
+	local_flush_tlb_kernel_range(addr, end);
+}
+
+#else /* USE_PGTABLE_MAPPING */
+
+static inline int __zs_cpu_up(struct mapping_area *area)
+{
+	/*
+	 * Make sure we don't leak memory if a cpu UP notification
+	 * and zs_init() race and both call zs_cpu_up() on the same cpu
+	 */
+	if (area->vm_buf)
+		return 0;
+	area->vm_buf = (char *)__get_free_page(GFP_KERNEL);
+	if (!area->vm_buf)
+		return -ENOMEM;
+	return 0;
+}
+
+static inline void __zs_cpu_down(struct mapping_area *area)
+{
+	if (area->vm_buf)
+		free_page((unsigned long)area->vm_buf);
+	area->vm_buf = NULL;
+}
+
+static void *__zs_map_object(struct mapping_area *area,
+			struct page *pages[2], int off, int size)
 {
-	struct page *pages[2];
 	int sizes[2];
 	void *addr;
+	char *buf = area->vm_buf;
 
-	pages[0] = firstpage;
-	pages[1] = get_next_page(firstpage);
-	BUG_ON(!pages[1]);
+	/* disable page faults to match kmap_atomic() return conditions */
+	pagefault_disable();
+
+	/* no read fastpath */
+	if (area->vm_mm == ZS_MM_WO)
+		goto out;
 
 	sizes[0] = PAGE_SIZE - off;
 	sizes[1] = size - sizes[0];
@@ -491,18 +713,20 @@ static void zs_copy_map_object(char *buf, struct page *firstpage,
 	addr = kmap_atomic(pages[1]);
 	memcpy(buf + sizes[0], addr, sizes[1]);
 	kunmap_atomic(addr);
+out:
+	return area->vm_buf;
 }
 
-static void zs_copy_unmap_object(char *buf, struct page *firstpage,
-				int off, int size)
+static void __zs_unmap_object(struct mapping_area *area,
+			struct page *pages[2], int off, int size)
 {
-	struct page *pages[2];
 	int sizes[2];
 	void *addr;
+	char *buf = area->vm_buf;
 
-	pages[0] = firstpage;
-	pages[1] = get_next_page(firstpage);
-	BUG_ON(!pages[1]);
+	/* no write fastpath */
+	if (area->vm_mm == ZS_MM_RO)
+		goto out;
 
 	sizes[0] = PAGE_SIZE - off;
 	sizes[1] = size - sizes[0];
@@ -514,34 +738,31 @@ static void zs_copy_unmap_object(char *buf, struct page *firstpage,
 	addr = kmap_atomic(pages[1]);
 	memcpy(addr, buf + sizes[0], sizes[1]);
 	kunmap_atomic(addr);
+
+out:
+	/* enable page faults to match kunmap_atomic() return conditions */
+	pagefault_enable();
 }
 
+#endif /* USE_PGTABLE_MAPPING */
+
 static int zs_cpu_notifier(struct notifier_block *nb, unsigned long action,
 				void *pcpu)
 {
-	int cpu = (long)pcpu;
+	int ret, cpu = (long)pcpu;
 	struct mapping_area *area;
 
 	switch (action) {
 	case CPU_UP_PREPARE:
 		area = &per_cpu(zs_map_area, cpu);
-		/*
-		 * Make sure we don't leak memory if a cpu UP notification
-		 * and zs_init() race and both call zs_cpu_up() on the same cpu
-		 */
-		if (area->vm_buf)
-			return 0;
-		area->vm_buf = (char *)__get_free_page(GFP_KERNEL);
-		if (!area->vm_buf)
-			return -ENOMEM;
-		return 0;
+		ret = __zs_cpu_up(area);
+		if (ret)
+			return notifier_from_errno(ret);
 		break;
 	case CPU_DEAD:
 	case CPU_UP_CANCELED:
 		area = &per_cpu(zs_map_area, cpu);
-		if (area->vm_buf)
-			free_page((unsigned long)area->vm_buf);
-		area->vm_buf = NULL;
+		__zs_cpu_down(area);
 		break;
 	}
 
@@ -758,28 +979,36 @@ void *zs_map_object(struct zs_pool *pool, unsigned long handle,
 	enum fullness_group fg;
 	struct size_class *class;
 	struct mapping_area *area;
+	struct page *pages[2];
 
 	BUG_ON(!handle);
 
+	/*
+	 * Because we use per-cpu mapping areas shared among the
+	 * pools/users, we can't allow mapping in interrupt context
+	 * because it can corrupt another users mappings.
+	 */
+	BUG_ON(in_interrupt());
+
 	obj_handle_to_location(handle, &page, &obj_idx);
 	get_zspage_mapping(get_first_page(page), &class_idx, &fg);
 	class = &pool->size_class[class_idx];
 	off = obj_idx_to_offset(page, obj_idx, class->size);
 
 	area = &get_cpu_var(zs_map_area);
+	area->vm_mm = mm;
 	if (off + class->size <= PAGE_SIZE) {
 		/* this object is contained entirely within a page */
 		area->vm_addr = kmap_atomic(page);
 		return area->vm_addr + off;
 	}
 
-	/* disable page faults to match kmap_atomic() return conditions */
-	pagefault_disable();
+	/* this object spans two pages */
+	pages[0] = page;
+	pages[1] = get_next_page(page);
+	BUG_ON(!pages[1]);
 
-	if (mm != ZS_MM_WO)
-		zs_copy_map_object(area->vm_buf, page, off, class->size);
-	area->vm_addr = NULL;
-	return area->vm_buf;
+	return __zs_map_object(area, pages, off, class->size);
 }
 EXPORT_SYMBOL_GPL(zs_map_object);
 
@@ -793,17 +1022,6 @@ void zs_unmap_object(struct zs_pool *pool, unsigned long handle)
 	struct size_class *class;
 	struct mapping_area *area;
 
-	area = &__get_cpu_var(zs_map_area);
-	/* single-page object fastpath */
-	if (area->vm_addr) {
-		kunmap_atomic(area->vm_addr);
-		goto out;
-	}
-
-	/* no write fastpath */
-	if (area->vm_mm == ZS_MM_RO)
-		goto pfenable;
-
 	BUG_ON(!handle);
 
 	obj_handle_to_location(handle, &page, &obj_idx);
@@ -811,12 +1029,18 @@ void zs_unmap_object(struct zs_pool *pool, unsigned long handle)
 	class = &pool->size_class[class_idx];
 	off = obj_idx_to_offset(page, obj_idx, class->size);
 
-	zs_copy_unmap_object(area->vm_buf, page, off, class->size);
+	area = &__get_cpu_var(zs_map_area);
+	if (off + class->size <= PAGE_SIZE)
+		kunmap_atomic(area->vm_addr);
+	else {
+		struct page *pages[2];
 
-pfenable:
-	/* enable page faults to match kunmap_atomic() return conditions */
-	pagefault_enable();
-out:
+		pages[0] = page;
+		pages[1] = get_next_page(page);
+		BUG_ON(!pages[1]);
+
+		__zs_unmap_object(area, pages, off, class->size);
+	}
 	put_cpu_var(zs_map_area);
 }
 EXPORT_SYMBOL_GPL(zs_unmap_object);
diff --git a/drivers/staging/zsmalloc/zsmalloc_int.h b/drivers/staging/zsmalloc/zsmalloc_int.h
deleted file mode 100644
index 52805176773..00000000000
--- a/drivers/staging/zsmalloc/zsmalloc_int.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * zsmalloc memory allocator
- *
- * Copyright (C) 2011  Nitin Gupta
- *
- * This code is released using a dual license strategy: BSD/GPL
- * You can choose the license that better fits your requirements.
- *
- * Released under the terms of 3-clause BSD License
- * Released under the terms of GNU General Public License Version 2.0
- */
-
-#ifndef _ZS_MALLOC_INT_H_
-#define _ZS_MALLOC_INT_H_
-
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-
-/*
- * This must be power of 2 and greater than of equal to sizeof(link_free).
- * These two conditions ensure that any 'struct link_free' itself doesn't
- * span more than 1 page which avoids complex case of mapping 2 pages simply
- * to restore link_free pointer values.
- */
-#define ZS_ALIGN		8
-
-/*
- * A single 'zspage' is composed of up to 2^N discontiguous 0-order (single)
- * pages. ZS_MAX_ZSPAGE_ORDER defines upper limit on N.
- */
-#define ZS_MAX_ZSPAGE_ORDER 2
-#define ZS_MAX_PAGES_PER_ZSPAGE (_AC(1, UL) << ZS_MAX_ZSPAGE_ORDER)
-
-/*
- * Object location (<PFN>, <obj_idx>) is encoded as
- * as single (void *) handle value.
- *
- * Note that object index <obj_idx> is relative to system
- * page <PFN> it is stored in, so for each sub-page belonging
- * to a zspage, obj_idx starts with 0.
- *
- * This is made more complicated by various memory models and PAE.
- */
-
-#ifndef MAX_PHYSMEM_BITS
-#ifdef CONFIG_HIGHMEM64G
-#define MAX_PHYSMEM_BITS 36
-#else /* !CONFIG_HIGHMEM64G */
-/*
- * If this definition of MAX_PHYSMEM_BITS is used, OBJ_INDEX_BITS will just
- * be PAGE_SHIFT
- */
-#define MAX_PHYSMEM_BITS BITS_PER_LONG
-#endif
-#endif
-#define _PFN_BITS		(MAX_PHYSMEM_BITS - PAGE_SHIFT)
-#define OBJ_INDEX_BITS	(BITS_PER_LONG - _PFN_BITS)
-#define OBJ_INDEX_MASK	((_AC(1, UL) << OBJ_INDEX_BITS) - 1)
-
-#define MAX(a, b) ((a) >= (b) ? (a) : (b))
-/* ZS_MIN_ALLOC_SIZE must be multiple of ZS_ALIGN */
-#define ZS_MIN_ALLOC_SIZE \
-	MAX(32, (ZS_MAX_PAGES_PER_ZSPAGE << PAGE_SHIFT >> OBJ_INDEX_BITS))
-#define ZS_MAX_ALLOC_SIZE	PAGE_SIZE
-
-/*
- * On systems with 4K page size, this gives 254 size classes! There is a
- * trader-off here:
- *  - Large number of size classes is potentially wasteful as free page are
- *    spread across these classes
- *  - Small number of size classes causes large internal fragmentation
- *  - Probably its better to use specific size classes (empirically
- *    determined). NOTE: all those class sizes must be set as multiple of
- *    ZS_ALIGN to make sure link_free itself never has to span 2 pages.
- *
- *  ZS_MIN_ALLOC_SIZE and ZS_SIZE_CLASS_DELTA must be multiple of ZS_ALIGN
- *  (reason above)
- */
-#define ZS_SIZE_CLASS_DELTA	16
-#define ZS_SIZE_CLASSES		((ZS_MAX_ALLOC_SIZE - ZS_MIN_ALLOC_SIZE) / \
-					ZS_SIZE_CLASS_DELTA + 1)
-
-/*
- * We do not maintain any list for completely empty or full pages
- */
-enum fullness_group {
-	ZS_ALMOST_FULL,
-	ZS_ALMOST_EMPTY,
-	_ZS_NR_FULLNESS_GROUPS,
-
-	ZS_EMPTY,
-	ZS_FULL
-};
-
-/*
- * We assign a page to ZS_ALMOST_EMPTY fullness group when:
- *	n <= N / f, where
- * n = number of allocated objects
- * N = total number of objects zspage can store
- * f = 1/fullness_threshold_frac
- *
- * Similarly, we assign zspage to:
- *	ZS_ALMOST_FULL	when n > N / f
- *	ZS_EMPTY	when n == 0
- *	ZS_FULL		when n == N
- *
- * (see: fix_fullness_group())
- */
-static const int fullness_threshold_frac = 4;
-
-struct mapping_area {
-	char *vm_buf; /* copy buffer for objects that span pages */
-	char *vm_addr; /* address of kmap_atomic()'ed pages */
-	enum zs_mapmode vm_mm; /* mapping mode */
-};
-
-struct size_class {
-	/*
-	 * Size of objects stored in this class. Must be multiple
-	 * of ZS_ALIGN.
-	 */
-	int size;
-	unsigned int index;
-
-	/* Number of PAGE_SIZE sized pages to combine to form a 'zspage' */
-	int pages_per_zspage;
-
-	spinlock_t lock;
-
-	/* stats */
-	u64 pages_allocated;
-
-	struct page *fullness_list[_ZS_NR_FULLNESS_GROUPS];
-};
-
-/*
- * Placed within free objects to form a singly linked list.
- * For every zspage, first_page->freelist gives head of this list.
- *
- * This must be power of 2 and less than or equal to ZS_ALIGN
- */
-struct link_free {
-	/* Handle of next free chunk (encodes <PFN, obj_idx>) */
-	void *next;
-};
-
-struct zs_pool {
-	struct size_class size_class[ZS_SIZE_CLASSES];
-
-	gfp_t flags;	/* allocation flags used when growing pool */
-	const char *name;
-};
-
-#endif
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 0694d9b1bce..6aba4395e8d 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -221,6 +221,7 @@ static int iscsi_login_zero_tsih_s1(
 {
 	struct iscsi_session *sess = NULL;
 	struct iscsi_login_req *pdu = (struct iscsi_login_req *)buf;
+	int ret;
 
 	sess = kzalloc(sizeof(struct iscsi_session), GFP_KERNEL);
 	if (!sess) {
@@ -257,9 +258,17 @@ static int iscsi_login_zero_tsih_s1(
 		return -ENOMEM;
 	}
 	spin_lock(&sess_idr_lock);
-	idr_get_new(&sess_idr, NULL, &sess->session_index);
+	ret = idr_get_new(&sess_idr, NULL, &sess->session_index);
 	spin_unlock(&sess_idr_lock);
 
+	if (ret < 0) {
+		pr_err("idr_get_new() for sess_idr failed\n");
+		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
+				ISCSI_LOGIN_STATUS_NO_RESOURCES);
+		kfree(sess);
+		return -ENOMEM;
+	}
+
 	sess->creation_time = get_jiffies_64();
 	spin_lock_init(&sess->session_stats_lock);
 	/*
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index 0c4760fabfc..240f7aa76ed 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -662,7 +662,7 @@ int iscsi_extract_key_value(char *textbuf, char **key, char **value)
 {
 	*value = strchr(textbuf, '=');
 	if (!*value) {
-		pr_err("Unable to locate \"=\" seperator for key,"
+		pr_err("Unable to locate \"=\" separator for key,"
 				" ignoring request.\n");
 		return -1;
 	}
@@ -1269,7 +1269,7 @@ static int iscsi_check_value(struct iscsi_param *param, char *value)
 		comma_ptr = strchr(value, ',');
 
 		if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
-			pr_err("Detected value seperator \",\", but"
+			pr_err("Detected value separator \",\", but"
 				" key \"%s\" does not allow a value list,"
 				" protocol error.\n", param->name);
 			return -1;
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 91799973081..41641ba5482 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -218,6 +218,13 @@ int target_emulate_set_target_port_groups(struct se_cmd *cmd)
 		cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 		return -EINVAL;
 	}
+	if (cmd->data_length < 4) {
+		pr_warn("SET TARGET PORT GROUPS parameter list length %u too"
+			" small\n", cmd->data_length);
+		cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+		return -EINVAL;
+	}
+
 	buf = transport_kmap_data_sg(cmd);
 
 	/*
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index cf2c66f3c11..9fc9a6006ca 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -669,6 +669,13 @@ int target_report_luns(struct se_cmd *se_cmd)
 	unsigned char *buf;
 	u32 lun_count = 0, offset = 8, i;
 
+	if (se_cmd->data_length < 16) {
+		pr_warn("REPORT LUNS allocation length %u too small\n",
+			se_cmd->data_length);
+		se_cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+		return -EINVAL;
+	}
+
 	buf = transport_kmap_data_sg(se_cmd);
 	if (!buf)
 		return -ENOMEM;
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 76db75e836e..9ba495477fd 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -325,17 +325,30 @@ static int iblock_execute_unmap(struct se_cmd *cmd)
 	struct iblock_dev *ibd = dev->dev_ptr;
 	unsigned char *buf, *ptr = NULL;
 	sector_t lba;
-	int size = cmd->data_length;
+	int size;
 	u32 range;
 	int ret = 0;
 	int dl, bd_dl;
 
+	if (cmd->data_length < 8) {
+		pr_warn("UNMAP parameter list length %u too small\n",
+			cmd->data_length);
+		cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+		return -EINVAL;
+	}
+
 	buf = transport_kmap_data_sg(cmd);
 
 	dl = get_unaligned_be16(&buf[0]);
 	bd_dl = get_unaligned_be16(&buf[2]);
 
-	size = min(size - 8, bd_dl);
+	size = cmd->data_length - 8;
+	if (bd_dl > size)
+		pr_warn("UNMAP parameter list length %u too small, ignoring bd_dl %u\n",
+			cmd->data_length, bd_dl);
+	else
+		size = bd_dl;
+
 	if (size / 16 > dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
 		cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
 		ret = -EINVAL;
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 1e946502c37..956c84c6b66 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -1540,6 +1540,14 @@ static int core_scsi3_decode_spec_i_port(
 	tidh_new->dest_local_nexus = 1;
 	list_add_tail(&tidh_new->dest_list, &tid_dest_list);
 
+	if (cmd->data_length < 28) {
+		pr_warn("SPC-PR: Received PR OUT parameter list"
+			" length too small: %u\n", cmd->data_length);
+		cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+		ret = -EINVAL;
+		goto out;
+	}
+
 	buf = transport_kmap_data_sg(cmd);
 	/*
 	 * For a PERSISTENT RESERVE OUT specify initiator ports payload,
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 6e32ff6f2fa..9d7ce3daa26 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -667,24 +667,32 @@ static void pscsi_free_device(void *p)
 	kfree(pdv);
 }
 
-static int pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg)
+static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg,
+				     unsigned char *sense_buffer)
 {
 	struct pscsi_dev_virt *pdv = cmd->se_dev->dev_ptr;
 	struct scsi_device *sd = pdv->pdv_sd;
 	int result;
 	struct pscsi_plugin_task *pt = cmd->priv;
-	unsigned char *cdb = &pt->pscsi_cdb[0];
+	unsigned char *cdb;
+	/*
+	 * Special case for REPORT_LUNs handling where pscsi_plugin_task has
+	 * not been allocated because TCM is handling the emulation directly.
+	 */
+	if (!pt)
+		return;
 
+	cdb = &pt->pscsi_cdb[0];
 	result = pt->pscsi_result;
 	/*
 	 * Hack to make sure that Write-Protect modepage is set if R/O mode is
 	 * forced.
 	 */
+	if (!cmd->se_deve || !cmd->data_length)
+		goto after_mode_sense;
+
 	if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) &&
 	     (status_byte(result) << 1) == SAM_STAT_GOOD) {
-		if (!cmd->se_deve)
-			goto after_mode_sense;
-
 		if (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) {
 			unsigned char *buf = transport_kmap_data_sg(cmd);
 
@@ -701,7 +709,7 @@ static int pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg)
 	}
 after_mode_sense:
 
-	if (sd->type != TYPE_TAPE)
+	if (sd->type != TYPE_TAPE || !cmd->data_length)
 		goto after_mode_select;
 
 	/*
@@ -743,10 +751,10 @@ after_mode_sense:
 	}
 after_mode_select:
 
-	if (status_byte(result) & CHECK_CONDITION)
-		return 1;
-
-	return 0;
+	if (sense_buffer && (status_byte(result) & CHECK_CONDITION)) {
+		memcpy(sense_buffer, pt->pscsi_sense, TRANSPORT_SENSE_BUFFER);
+		cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE;
+	}
 }
 
 enum {
@@ -1177,13 +1185,6 @@ fail:
 	return -ENOMEM;
 }
 
-static unsigned char *pscsi_get_sense_buffer(struct se_cmd *cmd)
-{
-	struct pscsi_plugin_task *pt = cmd->priv;
-
-	return pt->pscsi_sense;
-}
-
 /*	pscsi_get_device_rev():
  *
  *
@@ -1266,7 +1267,6 @@ static struct se_subsystem_api pscsi_template = {
 	.check_configfs_dev_params = pscsi_check_configfs_dev_params,
 	.set_configfs_dev_params = pscsi_set_configfs_dev_params,
 	.show_configfs_dev_params = pscsi_show_configfs_dev_params,
-	.get_sense_buffer	= pscsi_get_sense_buffer,
 	.get_device_rev		= pscsi_get_device_rev,
 	.get_device_type	= pscsi_get_device_type,
 	.get_blocks		= pscsi_get_blocks,
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 4c861de538c..388a922c8f6 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -877,9 +877,11 @@ static int spc_emulate_modesense(struct se_cmd *cmd)
 static int spc_emulate_request_sense(struct se_cmd *cmd)
 {
 	unsigned char *cdb = cmd->t_task_cdb;
-	unsigned char *buf;
+	unsigned char *rbuf;
 	u8 ua_asc = 0, ua_ascq = 0;
-	int err = 0;
+	unsigned char buf[SE_SENSE_BUF];
+
+	memset(buf, 0, SE_SENSE_BUF);
 
 	if (cdb[1] & 0x01) {
 		pr_err("REQUEST_SENSE description emulation not"
@@ -888,20 +890,21 @@ static int spc_emulate_request_sense(struct se_cmd *cmd)
 		return -ENOSYS;
 	}
 
-	buf = transport_kmap_data_sg(cmd);
-
-	if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) {
+	rbuf = transport_kmap_data_sg(cmd);
+	if (cmd->scsi_sense_reason != 0) {
+		/*
+		 * Out of memory.  We will fail with CHECK CONDITION, so
+		 * we must not clear the unit attention condition.
+		 */
+		target_complete_cmd(cmd, CHECK_CONDITION);
+		return 0;
+	} else if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) {
 		/*
 		 * CURRENT ERROR, UNIT ATTENTION
 		 */
 		buf[0] = 0x70;
 		buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
 
-		if (cmd->data_length < 18) {
-			buf[7] = 0x00;
-			err = -EINVAL;
-			goto end;
-		}
 		/*
 		 * The Additional Sense Code (ASC) from the UNIT ATTENTION
 		 */
@@ -915,11 +918,6 @@ static int spc_emulate_request_sense(struct se_cmd *cmd)
 		buf[0] = 0x70;
 		buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE;
 
-		if (cmd->data_length < 18) {
-			buf[7] = 0x00;
-			err = -EINVAL;
-			goto end;
-		}
 		/*
 		 * NO ADDITIONAL SENSE INFORMATION
 		 */
@@ -927,8 +925,11 @@ static int spc_emulate_request_sense(struct se_cmd *cmd)
 		buf[7] = 0x0A;
 	}
 
-end:
-	transport_kunmap_data_sg(cmd);
+	if (rbuf) {
+		memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
+		transport_kunmap_data_sg(cmd);
+	}
+
 	target_complete_cmd(cmd, GOOD);
 	return 0;
 }
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 0eaae23d12b..269f5448839 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -567,6 +567,34 @@ static void target_complete_failure_work(struct work_struct *work)
 	transport_generic_request_failure(cmd);
 }
 
+/*
+ * Used when asking transport to copy Sense Data from the underlying
+ * Linux/SCSI struct scsi_cmnd
+ */
+static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd)
+{
+	unsigned char *buffer = cmd->sense_buffer;
+	struct se_device *dev = cmd->se_dev;
+	u32 offset = 0;
+
+	WARN_ON(!cmd->se_lun);
+
+	if (!dev)
+		return NULL;
+
+	if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION)
+		return NULL;
+
+	offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER);
+
+	/* Automatically padded */
+	cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset;
+
+	pr_debug("HBA_[%u]_PLUG[%s]: Requesting sense for SAM STATUS: 0x%02x\n",
+		dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status);
+	return &buffer[offset];
+}
+
 void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 {
 	struct se_device *dev = cmd->se_dev;
@@ -580,11 +608,11 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 	cmd->transport_state &= ~CMD_T_BUSY;
 
 	if (dev && dev->transport->transport_complete) {
-		if (dev->transport->transport_complete(cmd,
-				cmd->t_data_sg) != 0) {
-			cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE;
+		dev->transport->transport_complete(cmd,
+				cmd->t_data_sg,
+				transport_get_sense_buffer(cmd));
+		if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE)
 			success = 1;
-		}
 	}
 
 	/*
@@ -1165,8 +1193,6 @@ int target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
 			" 0x%02x\n", cmd->se_tfo->get_fabric_name(),
 				cmd->data_length, size, cmd->t_task_cdb[0]);
 
-		cmd->cmd_spdtl = size;
-
 		if (cmd->data_direction == DMA_TO_DEVICE) {
 			pr_err("Rejecting underflow/overflow"
 					" WRITE data\n");
@@ -1183,15 +1209,20 @@ int target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
 			/* Returns CHECK_CONDITION + INVALID_CDB_FIELD */
 			goto out_invalid_cdb_field;
 		}
-
+		/*
+		 * For the overflow case keep the existing fabric provided
+		 * ->data_length.  Otherwise for the underflow case, reset
+		 * ->data_length to the smaller SCSI expected data transfer
+		 * length.
+		 */
 		if (size > cmd->data_length) {
 			cmd->se_cmd_flags |= SCF_OVERFLOW_BIT;
 			cmd->residual_count = (size - cmd->data_length);
 		} else {
 			cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
 			cmd->residual_count = (cmd->data_length - size);
+			cmd->data_length = size;
 		}
-		cmd->data_length = size;
 	}
 
 	return 0;
@@ -1818,61 +1849,6 @@ execute:
 EXPORT_SYMBOL(target_execute_cmd);
 
 /*
- * Used to obtain Sense Data from underlying Linux/SCSI struct scsi_cmnd
- */
-static int transport_get_sense_data(struct se_cmd *cmd)
-{
-	unsigned char *buffer = cmd->sense_buffer, *sense_buffer = NULL;
-	struct se_device *dev = cmd->se_dev;
-	unsigned long flags;
-	u32 offset = 0;
-
-	WARN_ON(!cmd->se_lun);
-
-	if (!dev)
-		return 0;
-
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-		return 0;
-	}
-
-	if (!(cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE))
-		goto out;
-
-	if (!dev->transport->get_sense_buffer) {
-		pr_err("dev->transport->get_sense_buffer is NULL\n");
-		goto out;
-	}
-
-	sense_buffer = dev->transport->get_sense_buffer(cmd);
-	if (!sense_buffer) {
-		pr_err("ITT 0x%08x cmd %p: Unable to locate"
-			" sense buffer for task with sense\n",
-			cmd->se_tfo->get_task_tag(cmd), cmd);
-		goto out;
-	}
-
-	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-
-	offset = cmd->se_tfo->set_fabric_sense_len(cmd, TRANSPORT_SENSE_BUFFER);
-
-	memcpy(&buffer[offset], sense_buffer, TRANSPORT_SENSE_BUFFER);
-
-	/* Automatically padded */
-	cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER + offset;
-
-	pr_debug("HBA_[%u]_PLUG[%s]: Set SAM STATUS: 0x%02x and sense\n",
-		dev->se_hba->hba_id, dev->transport->name, cmd->scsi_status);
-	return 0;
-
-out:
-	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-	return -1;
-}
-
-/*
  * Process all commands up to the last received ORDERED task attribute which
  * requires another blocking boundary
  */
@@ -1987,7 +1963,7 @@ static void transport_handle_queue_full(
 static void target_complete_ok_work(struct work_struct *work)
 {
 	struct se_cmd *cmd = container_of(work, struct se_cmd, work);
-	int reason = 0, ret;
+	int ret;
 
 	/*
 	 * Check if we need to move delayed/dormant tasks from cmds on the
@@ -2004,23 +1980,19 @@ static void target_complete_ok_work(struct work_struct *work)
 		schedule_work(&cmd->se_dev->qf_work_queue);
 
 	/*
-	 * Check if we need to retrieve a sense buffer from
+	 * Check if we need to send a sense buffer from
 	 * the struct se_cmd in question.
 	 */
 	if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) {
-		if (transport_get_sense_data(cmd) < 0)
-			reason = TCM_NON_EXISTENT_LUN;
-
-		if (cmd->scsi_status) {
-			ret = transport_send_check_condition_and_sense(
-					cmd, reason, 1);
-			if (ret == -EAGAIN || ret == -ENOMEM)
-				goto queue_full;
+		WARN_ON(!cmd->scsi_status);
+		ret = transport_send_check_condition_and_sense(
+					cmd, 0, 1);
+		if (ret == -EAGAIN || ret == -ENOMEM)
+			goto queue_full;
 
-			transport_lun_remove_cmd(cmd);
-			transport_cmd_check_stop_to_fabric(cmd);
-			return;
-		}
+		transport_lun_remove_cmd(cmd);
+		transport_cmd_check_stop_to_fabric(cmd);
+		return;
 	}
 	/*
 	 * Check for a callback, used by amongst other things
@@ -2218,7 +2190,6 @@ void *transport_kmap_data_sg(struct se_cmd *cmd)
 	struct page **pages;
 	int i;
 
-	BUG_ON(!sg);
 	/*
 	 * We need to take into account a possible offset here for fabrics like
 	 * tcm_loop who may be using a contig buffer from the SCSI midlayer for
@@ -2226,13 +2197,17 @@ void *transport_kmap_data_sg(struct se_cmd *cmd)
 	 */
 	if (!cmd->t_data_nents)
 		return NULL;
-	else if (cmd->t_data_nents == 1)
+
+	BUG_ON(!sg);
+	if (cmd->t_data_nents == 1)
 		return kmap(sg_page(sg)) + sg->offset;
 
 	/* >1 page. use vmap */
 	pages = kmalloc(sizeof(*pages) * cmd->t_data_nents, GFP_KERNEL);
-	if (!pages)
+	if (!pages) {
+		cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 		return NULL;
+	}
 
 	/* convert sg[] to pages[] */
 	for_each_sg(cmd->t_data_sg, sg, cmd->t_data_nents, i) {
@@ -2241,8 +2216,10 @@ void *transport_kmap_data_sg(struct se_cmd *cmd)
 
 	cmd->t_data_vmap = vmap(pages, cmd->t_data_nents,  VM_MAP, PAGE_KERNEL);
 	kfree(pages);
-	if (!cmd->t_data_vmap)
+	if (!cmd->t_data_vmap) {
+		cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 		return NULL;
+	}
 
 	return cmd->t_data_vmap + cmd->t_data_sg[0].offset;
 }
@@ -2294,9 +2271,9 @@ transport_generic_get_mem(struct se_cmd *cmd)
 	return 0;
 
 out:
-	while (i >= 0) {
-		__free_page(sg_page(&cmd->t_data_sg[i]));
+	while (i > 0) {
 		i--;
+		__free_page(sg_page(&cmd->t_data_sg[i]));
 	}
 	kfree(cmd->t_data_sg);
 	cmd->t_data_sg = NULL;
@@ -2323,21 +2300,19 @@ int transport_generic_new_cmd(struct se_cmd *cmd)
 		if (ret < 0)
 			goto out_fail;
 	}
-
-	/* Workaround for handling zero-length control CDBs */
-	if (!(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) && !cmd->data_length) {
+	/*
+	 * If this command doesn't have any payload and we don't have to call
+	 * into the fabric for data transfers, go ahead and complete it right
+	 * away.
+	 */
+	if (!cmd->data_length &&
+	    cmd->t_task_cdb[0] != REQUEST_SENSE &&
+	    cmd->se_dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) {
 		spin_lock_irq(&cmd->t_state_lock);
 		cmd->t_state = TRANSPORT_COMPLETE;
 		cmd->transport_state |= CMD_T_ACTIVE;
 		spin_unlock_irq(&cmd->t_state_lock);
 
-		if (cmd->t_task_cdb[0] == REQUEST_SENSE) {
-			u8 ua_asc = 0, ua_ascq = 0;
-
-			core_scsi3_ua_clear_for_request_sense(cmd,
-					&ua_asc, &ua_ascq);
-		}
-
 		INIT_WORK(&cmd->work, target_complete_ok_work);
 		queue_work(target_completion_wq, &cmd->work);
 		return 0;
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h
index c5eb3c33c3d..eea69358ced 100644
--- a/drivers/target/tcm_fc/tcm_fc.h
+++ b/drivers/target/tcm_fc/tcm_fc.h
@@ -131,6 +131,7 @@ extern struct list_head ft_lport_list;
 extern struct mutex ft_lport_lock;
 extern struct fc4_prov ft_prov;
 extern struct target_fabric_configfs *ft_configfs;
+extern unsigned int ft_debug_logging;
 
 /*
  * Fabric methods.
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index b9cb5006177..823e6922249 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -48,7 +48,7 @@
 /*
  * Dump cmd state for debugging.
  */
-void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
+static void _ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
 {
 	struct fc_exch *ep;
 	struct fc_seq *sp;
@@ -80,6 +80,12 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
 	}
 }
 
+void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
+{
+	if (unlikely(ft_debug_logging))
+		_ft_dump_cmd(cmd, caller);
+}
+
 static void ft_free_cmd(struct ft_cmd *cmd)
 {
 	struct fc_frame *fp;
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 87901fa74dd..3c9e5b57caa 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -456,7 +456,9 @@ static void ft_prlo(struct fc_rport_priv *rdata)
 	struct ft_tport *tport;
 
 	mutex_lock(&ft_lport_lock);
-	tport = rcu_dereference(rdata->local_port->prov[FC_TYPE_FCP]);
+	tport = rcu_dereference_protected(rdata->local_port->prov[FC_TYPE_FCP],
+					  lockdep_is_held(&ft_lport_lock));
+
 	if (!tport) {
 		mutex_unlock(&ft_lport_lock);
 		return;
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 2ab31e4f02c..67789b8345d 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -694,17 +694,14 @@ thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
 static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
 					    int delay)
 {
-	cancel_delayed_work(&(tz->poll_queue));
-
-	if (!delay)
-		return;
-
 	if (delay > 1000)
-		queue_delayed_work(system_freezable_wq, &(tz->poll_queue),
-				      round_jiffies(msecs_to_jiffies(delay)));
+		mod_delayed_work(system_freezable_wq, &tz->poll_queue,
+				 round_jiffies(msecs_to_jiffies(delay)));
+	else if (delay)
+		mod_delayed_work(system_freezable_wq, &tz->poll_queue,
+				 msecs_to_jiffies(delay));
 	else
-		queue_delayed_work(system_freezable_wq, &(tz->poll_queue),
-				      msecs_to_jiffies(delay));
+		cancel_delayed_work(&tz->poll_queue);
 }
 
 static void thermal_zone_device_passive(struct thermal_zone_device *tz,
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index 830cd62d849..d8e05eeab23 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -214,8 +214,8 @@ config CYCLADES
 	  If you haven't heard about it, it's safe to say N.
 
 config CYZ_INTR
-	bool "Cyclades-Z interrupt mode operation (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && CYCLADES
+	bool "Cyclades-Z interrupt mode operation"
+	depends on CYCLADES
 	help
 	  The Cyclades-Z family of multiport cards allows 2 (two) driver op
 	  modes: polling and interrupt. In polling mode, the driver will check
@@ -285,7 +285,7 @@ config SYNCLINK_GT
 
 config NOZOMI
 	tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  If you have a HSDPA driver Broadband Wireless Data Card -
 	  Globe Trotter PCMCIA card, say Y here.
@@ -294,7 +294,7 @@ config NOZOMI
 	  will be called nozomi.
 
 config ISI
-	tristate "Multi-Tech multiport card support (EXPERIMENTAL)"
+	tristate "Multi-Tech multiport card support"
 	depends on SERIAL_NONSTANDARD && PCI
 	select FW_LOADER
 	help
@@ -317,7 +317,6 @@ config N_HDLC
 
 config N_GSM
 	tristate "GSM MUX line discipline support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	depends on NET
 	help
 	  This line discipline provides support for the GSM MUX protocol and
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 6cc4358f68c..42d0a2581a8 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -420,7 +420,7 @@ static void check_modem_status(struct serial_state *info)
 				tty_hangup(port->tty);
 		}
 	}
-	if (port->flags & ASYNC_CTS_FLOW) {
+	if (tty_port_cts_enabled(port)) {
 		if (port->tty->hw_stopped) {
 			if (!(status & SER_CTS)) {
 #if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
@@ -646,7 +646,7 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info)
 	custom.adkcon = AC_UARTBRK;
 	mb();
 
-	if (tty->termios->c_cflag & HUPCL)
+	if (tty->termios.c_cflag & HUPCL)
 		info->MCR &= ~(SER_DTR|SER_RTS);
 	rtsdtr_ctrl(info->MCR);
 
@@ -670,7 +670,7 @@ static void change_speed(struct tty_struct *tty, struct serial_state *info,
 	int	bits;
 	unsigned long	flags;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	/* Byte size is always 8 bits plus parity bit if requested */
 
@@ -707,8 +707,8 @@ static void change_speed(struct tty_struct *tty, struct serial_state *info,
 	/* If the quotient is zero refuse the change */
 	if (!quot && old_termios) {
 		/* FIXME: Will need updating for new tty in the end */
-		tty->termios->c_cflag &= ~CBAUD;
-		tty->termios->c_cflag |= (old_termios->c_cflag & CBAUD);
+		tty->termios.c_cflag &= ~CBAUD;
+		tty->termios.c_cflag |= (old_termios->c_cflag & CBAUD);
 		baud = tty_get_baud_rate(tty);
 		if (!baud)
 			baud = 9600;
@@ -984,7 +984,7 @@ static void rs_throttle(struct tty_struct * tty)
 	if (I_IXOFF(tty))
 		rs_send_xchar(tty, STOP_CHAR(tty));
 
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		info->MCR &= ~SER_RTS;
 
 	local_irq_save(flags);
@@ -1012,7 +1012,7 @@ static void rs_unthrottle(struct tty_struct * tty)
 		else
 			rs_send_xchar(tty, START_CHAR(tty));
 	}
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		info->MCR |= SER_RTS;
 	local_irq_save(flags);
 	rtsdtr_ctrl(info->MCR);
@@ -1033,7 +1033,7 @@ static int get_serial_info(struct tty_struct *tty, struct serial_state *state,
 	if (!retinfo)
 		return -EFAULT;
 	memset(&tmp, 0, sizeof(tmp));
-	tty_lock();
+	tty_lock(tty);
 	tmp.line = tty->index;
 	tmp.port = state->port;
 	tmp.flags = state->tport.flags;
@@ -1042,7 +1042,7 @@ static int get_serial_info(struct tty_struct *tty, struct serial_state *state,
 	tmp.close_delay = state->tport.close_delay;
 	tmp.closing_wait = state->tport.closing_wait;
 	tmp.custom_divisor = state->custom_divisor;
-	tty_unlock();
+	tty_unlock(tty);
 	if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
 		return -EFAULT;
 	return 0;
@@ -1059,12 +1059,12 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
 	if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
 		return -EFAULT;
 
-	tty_lock();
+	tty_lock(tty);
 	change_spd = ((new_serial.flags ^ port->flags) & ASYNC_SPD_MASK) ||
 		new_serial.custom_divisor != state->custom_divisor;
 	if (new_serial.irq || new_serial.port != state->port ||
 			new_serial.xmit_fifo_size != state->xmit_fifo_size) {
-		tty_unlock();
+		tty_unlock(tty);
 		return -EINVAL;
 	}
   
@@ -1074,7 +1074,7 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
 		    (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
 		    ((new_serial.flags & ~ASYNC_USR_MASK) !=
 		     (port->flags & ~ASYNC_USR_MASK))) {
-			tty_unlock();
+			tty_unlock(tty);
 			return -EPERM;
 		}
 		port->flags = ((port->flags & ~ASYNC_USR_MASK) |
@@ -1084,7 +1084,7 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
 	}
 
 	if (new_serial.baud_base < 9600) {
-		tty_unlock();
+		tty_unlock(tty);
 		return -EINVAL;
 	}
 
@@ -1116,7 +1116,7 @@ check_and_exit:
 		}
 	} else
 		retval = startup(tty, state);
-	tty_unlock();
+	tty_unlock(tty);
 	return retval;
 }
 
@@ -1330,7 +1330,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 {
 	struct serial_state *info = tty->driver_data;
 	unsigned long flags;
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 
 	change_speed(tty, info, old_termios);
 
@@ -1347,7 +1347,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	if (!(old_termios->c_cflag & CBAUD) &&
 	    (cflag & CBAUD)) {
 		info->MCR |= SER_DTR;
-		if (!(tty->termios->c_cflag & CRTSCTS) || 
+		if (!(tty->termios.c_cflag & CRTSCTS) || 
 		    !test_bit(TTY_THROTTLED, &tty->flags)) {
 			info->MCR |= SER_RTS;
 		}
@@ -1358,7 +1358,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle turning off CRTSCTS */
 	if ((old_termios->c_cflag & CRTSCTS) &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		rs_start(tty);
 	}
@@ -1371,7 +1371,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	 * or not.  Hence, this may change.....
 	 */
 	if (!(old_termios->c_cflag & CLOCAL) &&
-	    (tty->termios->c_cflag & CLOCAL))
+	    (tty->termios.c_cflag & CLOCAL))
 		wake_up_interruptible(&info->open_wait);
 #endif
 }
@@ -1710,10 +1710,6 @@ static int __init amiga_serial_probe(struct platform_device *pdev)
 	serial_driver->flags = TTY_DRIVER_REAL_RAW;
 	tty_set_operations(serial_driver, &serial_ops);
 
-	error = tty_register_driver(serial_driver);
-	if (error)
-		goto fail_put_tty_driver;
-
 	state = rs_table;
 	state->port = (int)&custom.serdatr; /* Just to give it a value */
 	state->custom_divisor = 0;
@@ -1724,6 +1720,11 @@ static int __init amiga_serial_probe(struct platform_device *pdev)
 	state->icount.overrun = state->icount.brk = 0;
 	tty_port_init(&state->tport);
 	state->tport.ops = &amiga_port_ops;
+	tty_port_link_device(&state->tport, serial_driver, 0);
+
+	error = tty_register_driver(serial_driver);
+	if (error)
+		goto fail_put_tty_driver;
 
 	printk(KERN_INFO "ttyS0 is the amiga builtin serial port\n");
 
diff --git a/drivers/tty/bfin_jtag_comm.c b/drivers/tty/bfin_jtag_comm.c
index 61fc74fe174..02b7d3a0969 100644
--- a/drivers/tty/bfin_jtag_comm.c
+++ b/drivers/tty/bfin_jtag_comm.c
@@ -263,6 +263,7 @@ static int __init bfin_jc_init(void)
 	bfin_jc_driver->subtype      = SERIAL_TYPE_NORMAL;
 	bfin_jc_driver->init_termios = tty_std_termios;
 	tty_set_operations(bfin_jc_driver, &bfin_jc_ops);
+	tty_port_link_device(&port, bfin_jc_driver, 0);
 
 	ret = tty_register_driver(bfin_jc_driver);
 	if (ret)
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index e61cabdd69d..0a6a0bc1b59 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -727,7 +727,7 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
 		else
 			tty_hangup(tty);
 	}
-	if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
+	if ((mdm_change & CyCTS) && tty_port_cts_enabled(&info->port)) {
 		if (tty->hw_stopped) {
 			if (mdm_status & CyCTS) {
 				/* cy_start isn't used
@@ -1459,7 +1459,7 @@ static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
 			info->port.xmit_buf = NULL;
 			free_page((unsigned long)temp);
 		}
-		if (tty->termios->c_cflag & HUPCL)
+		if (tty->termios.c_cflag & HUPCL)
 			cyy_change_rts_dtr(info, 0, TIOCM_RTS | TIOCM_DTR);
 
 		cyy_issue_cmd(info, CyCHAN_CTL | CyDIS_RCVR);
@@ -1488,7 +1488,7 @@ static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
 			free_page((unsigned long)temp);
 		}
 
-		if (tty->termios->c_cflag & HUPCL)
+		if (tty->termios.c_cflag & HUPCL)
 			tty_port_lower_dtr_rts(&info->port);
 
 		set_bit(TTY_IO_ERROR, &tty->flags);
@@ -1599,7 +1599,7 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
 	 * If the port is the middle of closing, bail out now
 	 */
 	if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
-		wait_event_interruptible_tty(info->port.close_wait,
+		wait_event_interruptible_tty(tty, info->port.close_wait,
 				!(info->port.flags & ASYNC_CLOSING));
 		return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
 	}
@@ -1999,14 +1999,11 @@ static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty)
 	int baud, baud_rate = 0;
 	int i;
 
-	if (!tty->termios) /* XXX can this happen at all? */
-		return;
-
 	if (info->line == -1)
 		return;
 
-	cflag = tty->termios->c_cflag;
-	iflag = tty->termios->c_iflag;
+	cflag = tty->termios.c_cflag;
+	iflag = tty->termios.c_iflag;
 
 	/*
 	 * Set up the tty->alt_speed kludge
@@ -2825,7 +2822,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	cy_set_line_char(info, tty);
 
 	if ((old_termios->c_cflag & CRTSCTS) &&
-			!(tty->termios->c_cflag & CRTSCTS)) {
+			!(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		cy_start(tty);
 	}
@@ -2837,7 +2834,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	 * or not.  Hence, this may change.....
 	 */
 	if (!(old_termios->c_cflag & CLOCAL) &&
-	    (tty->termios->c_cflag & CLOCAL))
+	    (tty->termios.c_cflag & CLOCAL))
 		wake_up_interruptible(&info->port.open_wait);
 #endif
 }				/* cy_set_termios */
@@ -2899,7 +2896,7 @@ static void cy_throttle(struct tty_struct *tty)
 			info->throttle = 1;
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		if (!cy_is_Z(card)) {
 			spin_lock_irqsave(&card->card_lock, flags);
 			cyy_change_rts_dtr(info, 0, TIOCM_RTS);
@@ -2938,7 +2935,7 @@ static void cy_unthrottle(struct tty_struct *tty)
 			cy_send_xchar(tty, START_CHAR(tty));
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		card = info->card;
 		if (!cy_is_Z(card)) {
 			spin_lock_irqsave(&card->card_lock, flags);
@@ -3289,9 +3286,10 @@ static unsigned short __devinit cyy_init_card(void __iomem *true_base_addr,
 static int __init cy_detect_isa(void)
 {
 #ifdef CONFIG_ISA
+	struct cyclades_card *card;
 	unsigned short cy_isa_irq, nboard;
 	void __iomem *cy_isa_address;
-	unsigned short i, j, cy_isa_nchan;
+	unsigned short i, j, k, cy_isa_nchan;
 	int isparam = 0;
 
 	nboard = 0;
@@ -3349,7 +3347,8 @@ static int __init cy_detect_isa(void)
 		}
 		/* fill the next cy_card structure available */
 		for (j = 0; j < NR_CARDS; j++) {
-			if (cy_card[j].base_addr == NULL)
+			card = &cy_card[j];
+			if (card->base_addr == NULL)
 				break;
 		}
 		if (j == NR_CARDS) {	/* no more cy_cards available */
@@ -3363,7 +3362,7 @@ static int __init cy_detect_isa(void)
 
 		/* allocate IRQ */
 		if (request_irq(cy_isa_irq, cyy_interrupt,
-				0, "Cyclom-Y", &cy_card[j])) {
+				0, "Cyclom-Y", card)) {
 			printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but "
 				"could not allocate IRQ#%d.\n",
 				(unsigned long)cy_isa_address, cy_isa_irq);
@@ -3372,16 +3371,16 @@ static int __init cy_detect_isa(void)
 		}
 
 		/* set cy_card */
-		cy_card[j].base_addr = cy_isa_address;
-		cy_card[j].ctl_addr.p9050 = NULL;
-		cy_card[j].irq = (int)cy_isa_irq;
-		cy_card[j].bus_index = 0;
-		cy_card[j].first_line = cy_next_channel;
-		cy_card[j].num_chips = cy_isa_nchan / CyPORTS_PER_CHIP;
-		cy_card[j].nports = cy_isa_nchan;
-		if (cy_init_card(&cy_card[j])) {
-			cy_card[j].base_addr = NULL;
-			free_irq(cy_isa_irq, &cy_card[j]);
+		card->base_addr = cy_isa_address;
+		card->ctl_addr.p9050 = NULL;
+		card->irq = (int)cy_isa_irq;
+		card->bus_index = 0;
+		card->first_line = cy_next_channel;
+		card->num_chips = cy_isa_nchan / CyPORTS_PER_CHIP;
+		card->nports = cy_isa_nchan;
+		if (cy_init_card(card)) {
+			card->base_addr = NULL;
+			free_irq(cy_isa_irq, card);
 			iounmap(cy_isa_address);
 			continue;
 		}
@@ -3393,9 +3392,10 @@ static int __init cy_detect_isa(void)
 			(unsigned long)(cy_isa_address + (CyISA_Ywin - 1)),
 			cy_isa_irq, cy_isa_nchan, cy_next_channel);
 
-		for (j = cy_next_channel;
-				j < cy_next_channel + cy_isa_nchan; j++)
-			tty_register_device(cy_serial_driver, j, NULL);
+		for (k = 0, j = cy_next_channel;
+				j < cy_next_channel + cy_isa_nchan; j++, k++)
+			tty_port_register_device(&card->ports[k].port,
+					cy_serial_driver, j, NULL);
 		cy_next_channel += cy_isa_nchan;
 	}
 	return nboard;
@@ -3695,10 +3695,11 @@ err:
 static int __devinit cy_pci_probe(struct pci_dev *pdev,
 		const struct pci_device_id *ent)
 {
+	struct cyclades_card *card;
 	void __iomem *addr0 = NULL, *addr2 = NULL;
 	char *card_name = NULL;
 	u32 uninitialized_var(mailbox);
-	unsigned int device_id, nchan = 0, card_no, i;
+	unsigned int device_id, nchan = 0, card_no, i, j;
 	unsigned char plx_ver;
 	int retval, irq;
 
@@ -3829,7 +3830,8 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
 	}
 	/* fill the next cy_card structure available */
 	for (card_no = 0; card_no < NR_CARDS; card_no++) {
-		if (cy_card[card_no].base_addr == NULL)
+		card = &cy_card[card_no];
+		if (card->base_addr == NULL)
 			break;
 	}
 	if (card_no == NR_CARDS) {	/* no more cy_cards available */
@@ -3843,27 +3845,26 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
 			device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
 		/* allocate IRQ */
 		retval = request_irq(irq, cyy_interrupt,
-				IRQF_SHARED, "Cyclom-Y", &cy_card[card_no]);
+				IRQF_SHARED, "Cyclom-Y", card);
 		if (retval) {
 			dev_err(&pdev->dev, "could not allocate IRQ\n");
 			goto err_unmap;
 		}
-		cy_card[card_no].num_chips = nchan / CyPORTS_PER_CHIP;
+		card->num_chips = nchan / CyPORTS_PER_CHIP;
 	} else {
 		struct FIRM_ID __iomem *firm_id = addr2 + ID_ADDRESS;
 		struct ZFW_CTRL __iomem *zfw_ctrl;
 
 		zfw_ctrl = addr2 + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
 
-		cy_card[card_no].hw_ver = mailbox;
-		cy_card[card_no].num_chips = (unsigned int)-1;
-		cy_card[card_no].board_ctrl = &zfw_ctrl->board_ctrl;
+		card->hw_ver = mailbox;
+		card->num_chips = (unsigned int)-1;
+		card->board_ctrl = &zfw_ctrl->board_ctrl;
 #ifdef CONFIG_CYZ_INTR
 		/* allocate IRQ only if board has an IRQ */
 		if (irq != 0 && irq != 255) {
 			retval = request_irq(irq, cyz_interrupt,
-					IRQF_SHARED, "Cyclades-Z",
-					&cy_card[card_no]);
+					IRQF_SHARED, "Cyclades-Z", card);
 			if (retval) {
 				dev_err(&pdev->dev, "could not allocate IRQ\n");
 				goto err_unmap;
@@ -3873,17 +3874,17 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
 	}
 
 	/* set cy_card */
-	cy_card[card_no].base_addr = addr2;
-	cy_card[card_no].ctl_addr.p9050 = addr0;
-	cy_card[card_no].irq = irq;
-	cy_card[card_no].bus_index = 1;
-	cy_card[card_no].first_line = cy_next_channel;
-	cy_card[card_no].nports = nchan;
-	retval = cy_init_card(&cy_card[card_no]);
+	card->base_addr = addr2;
+	card->ctl_addr.p9050 = addr0;
+	card->irq = irq;
+	card->bus_index = 1;
+	card->first_line = cy_next_channel;
+	card->nports = nchan;
+	retval = cy_init_card(card);
 	if (retval)
 		goto err_null;
 
-	pci_set_drvdata(pdev, &cy_card[card_no]);
+	pci_set_drvdata(pdev, card);
 
 	if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
 			device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
@@ -3909,14 +3910,15 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
 
 	dev_info(&pdev->dev, "%s/PCI #%d found: %d channels starting from "
 		"port %d.\n", card_name, card_no + 1, nchan, cy_next_channel);
-	for (i = cy_next_channel; i < cy_next_channel + nchan; i++)
-		tty_register_device(cy_serial_driver, i, &pdev->dev);
+	for (j = 0, i = cy_next_channel; i < cy_next_channel + nchan; i++, j++)
+		tty_port_register_device(&card->ports[j].port,
+				cy_serial_driver, i, &pdev->dev);
 	cy_next_channel += nchan;
 
 	return 0;
 err_null:
-	cy_card[card_no].base_addr = NULL;
-	free_irq(irq, &cy_card[card_no]);
+	card->base_addr = NULL;
+	free_irq(irq, card);
 err_unmap:
 	iounmap(addr0);
 	if (addr2)
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index 4813684cb63..4ab936b7aac 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -738,16 +738,17 @@ static int __devinit ehv_bc_tty_probe(struct platform_device *pdev)
 		goto error;
 	}
 
-	bc->dev = tty_register_device(ehv_bc_driver, i, &pdev->dev);
+	tty_port_init(&bc->port);
+	bc->port.ops = &ehv_bc_tty_port_ops;
+
+	bc->dev = tty_port_register_device(&bc->port, ehv_bc_driver, i,
+			&pdev->dev);
 	if (IS_ERR(bc->dev)) {
 		ret = PTR_ERR(bc->dev);
 		dev_err(&pdev->dev, "could not register tty (ret=%i)\n", ret);
 		goto error;
 	}
 
-	tty_port_init(&bc->port);
-	bc->port.ops = &ehv_bc_tty_port_ops;
-
 	dev_set_drvdata(&pdev->dev, bc);
 
 	dev_info(&pdev->dev, "registered /dev/%s%u for byte channel %u\n",
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index 0282a83f51f..f47b734c6a7 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -76,7 +76,7 @@ config HVC_XEN_FRONTEND
 
 config HVC_UDBG
        bool "udbg based fake hypervisor console"
-       depends on PPC && EXPERIMENTAL
+       depends on PPC
        select HVC_DRIVER
        default n
        help
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 2d691eb7c40..4a652999380 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -299,20 +299,33 @@ static void hvc_unthrottle(struct tty_struct *tty)
 	hvc_kick();
 }
 
+static int hvc_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct hvc_struct *hp;
+	int rc;
+
+	/* Auto increments kref reference if found. */
+	if (!(hp = hvc_get_by_index(tty->index)))
+		return -ENODEV;
+
+	tty->driver_data = hp;
+
+	rc = tty_port_install(&hp->port, driver, tty);
+	if (rc)
+		tty_port_put(&hp->port);
+	return rc;
+}
+
 /*
  * The TTY interface won't be used until after the vio layer has exposed the vty
  * adapter to the kernel.
  */
 static int hvc_open(struct tty_struct *tty, struct file * filp)
 {
-	struct hvc_struct *hp;
+	struct hvc_struct *hp = tty->driver_data;
 	unsigned long flags;
 	int rc = 0;
 
-	/* Auto increments kref reference if found. */
-	if (!(hp = hvc_get_by_index(tty->index)))
-		return -ENODEV;
-
 	spin_lock_irqsave(&hp->port.lock, flags);
 	/* Check and then increment for fast path open. */
 	if (hp->port.count++ > 0) {
@@ -322,7 +335,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 	} /* else count == 0 */
 	spin_unlock_irqrestore(&hp->port.lock, flags);
 
-	tty->driver_data = hp;
 	tty_port_tty_set(&hp->port, tty);
 
 	if (hp->ops->notifier_add)
@@ -389,6 +401,11 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
 				hp->vtermno, hp->port.count);
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 	}
+}
+
+static void hvc_cleanup(struct tty_struct *tty)
+{
+	struct hvc_struct *hp = tty->driver_data;
 
 	tty_port_put(&hp->port);
 }
@@ -541,7 +558,7 @@ static int hvc_write_room(struct tty_struct *tty)
 	struct hvc_struct *hp = tty->driver_data;
 
 	if (!hp)
-		return -1;
+		return 0;
 
 	return hp->outbuf_size - hp->n_outbuf;
 }
@@ -792,8 +809,10 @@ static void hvc_poll_put_char(struct tty_driver *driver, int line, char ch)
 #endif
 
 static const struct tty_operations hvc_ops = {
+	.install = hvc_install,
 	.open = hvc_open,
 	.close = hvc_close,
+	.cleanup = hvc_cleanup,
 	.write = hvc_write,
 	.hangup = hvc_hangup,
 	.unthrottle = hvc_unthrottle,
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 1e456dca4f6..2944ff88fdc 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -21,6 +21,7 @@
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/err.h>
+#include <linux/irq.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/list.h>
@@ -35,6 +36,7 @@
 #include <xen/page.h>
 #include <xen/events.h>
 #include <xen/interface/io/console.h>
+#include <xen/interface/sched.h>
 #include <xen/hvc-console.h>
 #include <xen/xenbus.h>
 
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index d56788c8397..cab5c7adf8e 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1102,27 +1102,20 @@ static struct hvcs_struct *hvcs_get_by_index(int index)
 	return NULL;
 }
 
-/*
- * This is invoked via the tty_open interface when a user app connects to the
- * /dev node.
- */
-static int hvcs_open(struct tty_struct *tty, struct file *filp)
+static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct hvcs_struct *hvcsd;
-	int rc, retval = 0;
-	unsigned long flags;
-	unsigned int irq;
 	struct vio_dev *vdev;
-	unsigned long unit_address;
-
-	if (tty->driver_data)
-		goto fast_open;
+	unsigned long unit_address, flags;
+	unsigned int irq;
+	int retval;
 
 	/*
 	 * Is there a vty-server that shares the same index?
 	 * This function increments the kref index.
 	 */
-	if (!(hvcsd = hvcs_get_by_index(tty->index))) {
+	hvcsd = hvcs_get_by_index(tty->index);
+	if (!hvcsd) {
 		printk(KERN_WARNING "HVCS: open failed, no device associated"
 				" with tty->index %d.\n", tty->index);
 		return -ENODEV;
@@ -1130,11 +1123,16 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
 
-	if (hvcsd->connected == 0)
-		if ((retval = hvcs_partner_connect(hvcsd)))
-			goto error_release;
+	if (hvcsd->connected == 0) {
+		retval = hvcs_partner_connect(hvcsd);
+		if (retval) {
+			spin_unlock_irqrestore(&hvcsd->lock, flags);
+			printk(KERN_WARNING "HVCS: partner connect failed.\n");
+			goto err_put;
+		}
+	}
 
-	hvcsd->port.count = 1;
+	hvcsd->port.count = 0;
 	hvcsd->port.tty = tty;
 	tty->driver_data = hvcsd;
 
@@ -1155,37 +1153,48 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
 	 * This must be done outside of the spinlock because it requests irqs
 	 * and will grab the spinlock and free the connection if it fails.
 	 */
-	if (((rc = hvcs_enable_device(hvcsd, unit_address, irq, vdev)))) {
-		tty_port_put(&hvcsd->port);
+	retval = hvcs_enable_device(hvcsd, unit_address, irq, vdev);
+	if (retval) {
 		printk(KERN_WARNING "HVCS: enable device failed.\n");
-		return rc;
+		goto err_put;
 	}
 
-	goto open_success;
+	retval = tty_port_install(&hvcsd->port, driver, tty);
+	if (retval)
+		goto err_irq;
 
-fast_open:
-	hvcsd = tty->driver_data;
+	return 0;
+err_irq:
+	spin_lock_irqsave(&hvcsd->lock, flags);
+	vio_disable_interrupts(hvcsd->vdev);
+	spin_unlock_irqrestore(&hvcsd->lock, flags);
+	free_irq(irq, hvcsd);
+err_put:
+	tty_port_put(&hvcsd->port);
+
+	return retval;
+}
+
+/*
+ * This is invoked via the tty_open interface when a user app connects to the
+ * /dev node.
+ */
+static int hvcs_open(struct tty_struct *tty, struct file *filp)
+{
+	struct hvcs_struct *hvcsd = tty->driver_data;
+	unsigned long flags;
 
 	spin_lock_irqsave(&hvcsd->lock, flags);
-	tty_port_get(&hvcsd->port);
 	hvcsd->port.count++;
 	hvcsd->todo_mask |= HVCS_SCHED_READ;
 	spin_unlock_irqrestore(&hvcsd->lock, flags);
 
-open_success:
 	hvcs_kick();
 
 	printk(KERN_INFO "HVCS: vty-server@%X connection opened.\n",
 		hvcsd->vdev->unit_address );
 
 	return 0;
-
-error_release:
-	spin_unlock_irqrestore(&hvcsd->lock, flags);
-	tty_port_put(&hvcsd->port);
-
-	printk(KERN_WARNING "HVCS: partner connect failed.\n");
-	return retval;
 }
 
 static void hvcs_close(struct tty_struct *tty, struct file *filp)
@@ -1236,7 +1245,6 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 		tty->driver_data = NULL;
 
 		free_irq(irq, hvcsd);
-		tty_port_put(&hvcsd->port);
 		return;
 	} else if (hvcsd->port.count < 0) {
 		printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
@@ -1245,6 +1253,12 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
 	}
 
 	spin_unlock_irqrestore(&hvcsd->lock, flags);
+}
+
+static void hvcs_cleanup(struct tty_struct * tty)
+{
+	struct hvcs_struct *hvcsd = tty->driver_data;
+
 	tty_port_put(&hvcsd->port);
 }
 
@@ -1431,8 +1445,10 @@ static int hvcs_chars_in_buffer(struct tty_struct *tty)
 }
 
 static const struct tty_operations hvcs_ops = {
+	.install = hvcs_install,
 	.open = hvcs_open,
 	.close = hvcs_close,
+	.cleanup = hvcs_cleanup,
 	.hangup = hvcs_hangup,
 	.write = hvcs_write,
 	.write_room = hvcs_write_room,
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index 6f5bc49c441..5b95b4f28cf 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -765,7 +765,7 @@ static void hvsi_flush_output(struct hvsi_struct *hp)
 
 	/* 'writer' could still be pending if it didn't see n_outbuf = 0 yet */
 	cancel_delayed_work_sync(&hp->writer);
-	flush_work_sync(&hp->handshaker);
+	flush_work(&hp->handshaker);
 
 	/*
 	 * it's also possible that our timeout expired and hvsi_write_worker
@@ -1080,6 +1080,8 @@ static int __init hvsi_init(void)
 		struct hvsi_struct *hp = &hvsi_ports[i];
 		int ret = 1;
 
+		tty_port_link_device(&hp->port, hvsi_driver, i);
+
 		ret = request_irq(hp->virq, hvsi_interrupt, 0, "hvsi", hp);
 		if (ret)
 			printk(KERN_ERR "HVSI: couldn't reserve irq 0x%x (error %i)\n",
diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
index 59c135dd5d2..3396eb9d57a 100644
--- a/drivers/tty/hvc/hvsi_lib.c
+++ b/drivers/tty/hvc/hvsi_lib.c
@@ -400,7 +400,7 @@ void hvsilib_close(struct hvsi_priv *pv, struct hvc_struct *hp)
 		spin_unlock_irqrestore(&hp->lock, flags);
 
 		/* Clear our own DTR */
-		if (!pv->tty || (pv->tty->termios->c_cflag & HUPCL))
+		if (!pv->tty || (pv->tty->termios.c_cflag & HUPCL))
 			hvsilib_write_mctrl(pv, 0);
 
 		/* Tear down the connection */
diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c
index 0aeb5a38d29..b4ba0670dc5 100644
--- a/drivers/tty/ipwireless/hardware.c
+++ b/drivers/tty/ipwireless/hardware.c
@@ -1729,7 +1729,7 @@ void ipwireless_hardware_free(struct ipw_hardware *hw)
 
 	ipwireless_stop_interrupts(hw);
 
-	flush_work_sync(&hw->work_rx);
+	flush_work(&hw->work_rx);
 
 	for (i = 0; i < NL_NUM_OF_ADDRESSES; i++)
 		if (hw->packet_assembler[i] != NULL)
diff --git a/drivers/tty/ipwireless/network.c b/drivers/tty/ipwireless/network.c
index 57c8b481113..57102e66165 100644
--- a/drivers/tty/ipwireless/network.c
+++ b/drivers/tty/ipwireless/network.c
@@ -274,7 +274,12 @@ static void do_go_online(struct work_struct *work_go_online)
 		network->xaccm[0] = ~0U;
 		network->xaccm[3] = 0x60000000U;
 		network->raccm = ~0U;
-		ppp_register_channel(channel);
+		if (ppp_register_channel(channel) < 0) {
+			printk(KERN_ERR IPWIRELESS_PCCARD_NAME
+					": unable to register PPP channel\n");
+			kfree(channel);
+			return;
+		}
 		spin_lock_irqsave(&network->lock, flags);
 		network->ppp_channel = channel;
 	}
@@ -430,8 +435,8 @@ void ipwireless_network_free(struct ipw_network *network)
 	network->shutting_down = 1;
 
 	ipwireless_ppp_close(network);
-	flush_work_sync(&network->work_go_online);
-	flush_work_sync(&network->work_go_offline);
+	flush_work(&network->work_go_online);
+	flush_work(&network->work_go_offline);
 
 	ipwireless_stop_interrupts(network->hardware);
 	ipwireless_associate_network(network->hardware, NULL);
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
index f8b5fa0093a..160f0ad9589 100644
--- a/drivers/tty/ipwireless/tty.c
+++ b/drivers/tty/ipwireless/tty.c
@@ -476,7 +476,7 @@ static int add_tty(int j,
 	mutex_init(&ttys[j]->ipw_tty_mutex);
 	tty_port_init(&ttys[j]->port);
 
-	tty_register_device(ipw_tty_driver, j, NULL);
+	tty_port_register_device(&ttys[j]->port, ipw_tty_driver, j, NULL);
 	ipwireless_associate_network_tty(network, channel_idx, ttys[j]);
 
 	if (secondary_channel_idx != -1)
diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c
index e1235accab7..d7492e18360 100644
--- a/drivers/tty/isicom.c
+++ b/drivers/tty/isicom.c
@@ -600,7 +600,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
 					port->status &= ~ISI_DCD;
 			}
 
-			if (port->port.flags & ASYNC_CTS_FLOW) {
+			if (tty_port_cts_enabled(&port->port)) {
 				if (tty->hw_stopped) {
 					if (header & ISI_CTS) {
 						port->port.tty->hw_stopped = 0;
@@ -702,7 +702,7 @@ static void isicom_config_port(struct tty_struct *tty)
 
 		/* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */
 		if (baud < 1 || baud > 4)
-			tty->termios->c_cflag &= ~CBAUDEX;
+			tty->termios.c_cflag &= ~CBAUDEX;
 		else
 			baud += 15;
 	}
@@ -1196,8 +1196,8 @@ static void isicom_set_termios(struct tty_struct *tty,
 	if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))
 		return;
 
-	if (tty->termios->c_cflag == old_termios->c_cflag &&
-			tty->termios->c_iflag == old_termios->c_iflag)
+	if (tty->termios.c_cflag == old_termios->c_cflag &&
+			tty->termios.c_iflag == old_termios->c_iflag)
 		return;
 
 	spin_lock_irqsave(&port->card->card_lock, flags);
@@ -1205,7 +1205,7 @@ static void isicom_set_termios(struct tty_struct *tty,
 	spin_unlock_irqrestore(&port->card->card_lock, flags);
 
 	if ((old_termios->c_cflag & CRTSCTS) &&
-			!(tty->termios->c_cflag & CRTSCTS)) {
+			!(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		isicom_start(tty);
 	}
@@ -1611,7 +1611,8 @@ static int __devinit isicom_probe(struct pci_dev *pdev,
 		goto errunri;
 
 	for (index = 0; index < board->port_count; index++)
-		tty_register_device(isicom_normal, board->index * 16 + index,
+		tty_port_register_device(&board->ports[index].port,
+				isicom_normal, board->index * 16 + index,
 				&pdev->dev);
 
 	return 0;
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index 324467d28a5..56e616b9109 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -169,6 +169,7 @@ static DEFINE_SPINLOCK(moxa_lock);
 static unsigned long baseaddr[MAX_BOARDS];
 static unsigned int type[MAX_BOARDS];
 static unsigned int numports[MAX_BOARDS];
+static struct tty_port moxa_service_port;
 
 MODULE_AUTHOR("William Chen");
 MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver");
@@ -367,10 +368,10 @@ static int moxa_ioctl(struct tty_struct *tty,
 					tmp.dcd = 1;
 
 				ttyp = tty_port_tty_get(&p->port);
-				if (!ttyp || !ttyp->termios)
+				if (!ttyp)
 					tmp.cflag = p->cflag;
 				else
-					tmp.cflag = ttyp->termios->c_cflag;
+					tmp.cflag = ttyp->termios.c_cflag;
 				tty_kref_put(ttyp);
 copy:
 				if (copy_to_user(argm, &tmp, sizeof(tmp)))
@@ -834,7 +835,7 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
 	const struct firmware *fw;
 	const char *file;
 	struct moxa_port *p;
-	unsigned int i;
+	unsigned int i, first_idx;
 	int ret;
 
 	brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports),
@@ -887,6 +888,11 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
 		mod_timer(&moxaTimer, jiffies + HZ / 50);
 	spin_unlock_bh(&moxa_lock);
 
+	first_idx = (brd - moxa_boards) * MAX_PORTS_PER_BOARD;
+	for (i = 0; i < brd->numPorts; i++)
+		tty_port_register_device(&brd->ports[i].port, moxaDriver,
+				first_idx + i, dev);
+
 	return 0;
 err_free:
 	kfree(brd->ports);
@@ -896,7 +902,7 @@ err:
 
 static void moxa_board_deinit(struct moxa_board_conf *brd)
 {
-	unsigned int a, opened;
+	unsigned int a, opened, first_idx;
 
 	mutex_lock(&moxa_openlock);
 	spin_lock_bh(&moxa_lock);
@@ -925,6 +931,10 @@ static void moxa_board_deinit(struct moxa_board_conf *brd)
 		mutex_lock(&moxa_openlock);
 	}
 
+	first_idx = (brd - moxa_boards) * MAX_PORTS_PER_BOARD;
+	for (a = 0; a < brd->numPorts; a++)
+		tty_unregister_device(moxaDriver, first_idx + a);
+
 	iounmap(brd->basemem);
 	brd->basemem = NULL;
 	kfree(brd->ports);
@@ -967,6 +977,7 @@ static int __devinit moxa_pci_probe(struct pci_dev *pdev,
 	board->basemem = ioremap_nocache(pci_resource_start(pdev, 2), 0x4000);
 	if (board->basemem == NULL) {
 		dev_err(&pdev->dev, "can't remap io space 2\n");
+		retval = -ENOMEM;
 		goto err_reg;
 	}
 
@@ -1031,9 +1042,14 @@ static int __init moxa_init(void)
 
 	printk(KERN_INFO "MOXA Intellio family driver version %s\n",
 			MOXA_VERSION);
-	moxaDriver = alloc_tty_driver(MAX_PORTS + 1);
-	if (!moxaDriver)
-		return -ENOMEM;
+
+	tty_port_init(&moxa_service_port);
+
+	moxaDriver = tty_alloc_driver(MAX_PORTS + 1,
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_DYNAMIC_DEV);
+	if (IS_ERR(moxaDriver))
+		return PTR_ERR(moxaDriver);
 
 	moxaDriver->name = "ttyMX";
 	moxaDriver->major = ttymajor;
@@ -1044,8 +1060,9 @@ static int __init moxa_init(void)
 	moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
 	moxaDriver->init_termios.c_ispeed = 9600;
 	moxaDriver->init_termios.c_ospeed = 9600;
-	moxaDriver->flags = TTY_DRIVER_REAL_RAW;
 	tty_set_operations(moxaDriver, &moxa_ops);
+	/* Having one more port only for ioctls is ugly */
+	tty_port_link_device(&moxa_service_port, moxaDriver, MAX_PORTS);
 
 	if (tty_register_driver(moxaDriver)) {
 		printk(KERN_ERR "can't register MOXA Smartio tty driver!\n");
@@ -1178,7 +1195,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
 	mutex_lock(&ch->port.mutex);
 	if (!(ch->port.flags & ASYNC_INITIALIZED)) {
 		ch->statusflags = 0;
-		moxa_set_tty_param(tty, tty->termios);
+		moxa_set_tty_param(tty, &tty->termios);
 		MoxaPortLineCtrl(ch, 1, 1);
 		MoxaPortEnable(ch);
 		MoxaSetFifo(ch, ch->type == PORT_16550A);
@@ -1193,7 +1210,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
 static void moxa_close(struct tty_struct *tty, struct file *filp)
 {
 	struct moxa_port *ch = tty->driver_data;
-	ch->cflag = tty->termios->c_cflag;
+	ch->cflag = tty->termios.c_cflag;
 	tty_port_close(&ch->port, tty, filp);
 }
 
@@ -1464,7 +1481,7 @@ static void moxa_poll(unsigned long ignored)
 
 static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios)
 {
-	register struct ktermios *ts = tty->termios;
+	register struct ktermios *ts = &tty->termios;
 	struct moxa_port *ch = tty->driver_data;
 	int rts, cts, txflow, rxflow, xany, baud;
 
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 90cc680c4f0..cfda47dabd2 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -643,7 +643,7 @@ static int mxser_change_speed(struct tty_struct *tty,
 	int ret = 0;
 	unsigned char status;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 	if (!info->ioaddr)
 		return ret;
 
@@ -830,7 +830,7 @@ static void mxser_check_modem_status(struct tty_struct *tty,
 			wake_up_interruptible(&port->port.open_wait);
 	}
 
-	if (port->port.flags & ASYNC_CTS_FLOW) {
+	if (tty_port_cts_enabled(&port->port)) {
 		if (tty->hw_stopped) {
 			if (status & UART_MSR_CTS) {
 				tty->hw_stopped = 0;
@@ -1520,10 +1520,10 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
 				
 				tty = tty_port_tty_get(port);
 
-				if (!tty || !tty->termios)
+				if (!tty)
 					ms.cflag = ip->normal_termios.c_cflag;
 				else
-					ms.cflag = tty->termios->c_cflag;
+					ms.cflag = tty->termios.c_cflag;
 				tty_kref_put(tty);
 				spin_lock_irq(&ip->slock);
 				status = inb(ip->ioaddr + UART_MSR);
@@ -1589,13 +1589,13 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
 
 				tty = tty_port_tty_get(&ip->port);
 
-				if (!tty || !tty->termios) {
+				if (!tty) {
 					cflag = ip->normal_termios.c_cflag;
 					iflag = ip->normal_termios.c_iflag;
 					me->baudrate[p] = tty_termios_baud_rate(&ip->normal_termios);
 				} else {
-					cflag = tty->termios->c_cflag;
-					iflag = tty->termios->c_iflag;
+					cflag = tty->termios.c_cflag;
+					iflag = tty->termios.c_iflag;
 					me->baudrate[p] = tty_get_baud_rate(tty);
 				}
 				tty_kref_put(tty);
@@ -1853,7 +1853,7 @@ static void mxser_stoprx(struct tty_struct *tty)
 		}
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		info->MCR &= ~UART_MCR_RTS;
 		outb(info->MCR, info->ioaddr + UART_MCR);
 	}
@@ -1890,7 +1890,7 @@ static void mxser_unthrottle(struct tty_struct *tty)
 		}
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		info->MCR |= UART_MCR_RTS;
 		outb(info->MCR, info->ioaddr + UART_MCR);
 	}
@@ -1939,14 +1939,14 @@ static void mxser_set_termios(struct tty_struct *tty, struct ktermios *old_termi
 	spin_unlock_irqrestore(&info->slock, flags);
 
 	if ((old_termios->c_cflag & CRTSCTS) &&
-			!(tty->termios->c_cflag & CRTSCTS)) {
+			!(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		mxser_start(tty);
 	}
 
 	/* Handle sw stopped */
 	if ((old_termios->c_iflag & IXON) &&
-			!(tty->termios->c_iflag & IXON)) {
+			!(tty->termios.c_iflag & IXON)) {
 		tty->stopped = 0;
 
 		if (info->board->chip_flag) {
@@ -2337,11 +2337,36 @@ static struct tty_port_operations mxser_port_ops = {
  * The MOXA Smartio/Industio serial driver boot-time initialization code!
  */
 
+static bool allow_overlapping_vector;
+module_param(allow_overlapping_vector, bool, S_IRUGO);
+MODULE_PARM_DESC(allow_overlapping_vector, "whether we allow ISA cards to be configured such that vector overlabs IO ports (default=no)");
+
+static bool mxser_overlapping_vector(struct mxser_board *brd)
+{
+	return allow_overlapping_vector &&
+		brd->vector >= brd->ports[0].ioaddr &&
+		brd->vector < brd->ports[0].ioaddr + 8 * brd->info->nports;
+}
+
+static int mxser_request_vector(struct mxser_board *brd)
+{
+	if (mxser_overlapping_vector(brd))
+		return 0;
+	return request_region(brd->vector, 1, "mxser(vector)") ? 0 : -EIO;
+}
+
+static void mxser_release_vector(struct mxser_board *brd)
+{
+	if (mxser_overlapping_vector(brd))
+		return;
+	release_region(brd->vector, 1);
+}
+
 static void mxser_release_ISA_res(struct mxser_board *brd)
 {
 	free_irq(brd->irq, brd);
 	release_region(brd->ports[0].ioaddr, 8 * brd->info->nports);
-	release_region(brd->vector, 1);
+	mxser_release_vector(brd);
 }
 
 static int __devinit mxser_initbrd(struct mxser_board *brd,
@@ -2396,7 +2421,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
 
 static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd)
 {
-	int id, i, bits;
+	int id, i, bits, ret;
 	unsigned short regs[16], irq;
 	unsigned char scratch, scratch2;
 
@@ -2492,13 +2517,15 @@ static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd)
 				8 * brd->info->nports - 1);
 		return -EIO;
 	}
-	if (!request_region(brd->vector, 1, "mxser(vector)")) {
+
+	ret = mxser_request_vector(brd);
+	if (ret) {
 		release_region(brd->ports[0].ioaddr, 8 * brd->info->nports);
 		printk(KERN_ERR "mxser: can't request interrupt vector region: "
 				"0x%.8lx-0x%.8lx\n",
 				brd->ports[0].ioaddr, brd->ports[0].ioaddr +
 				8 * brd->info->nports - 1);
-		return -EIO;
+		return ret;
 	}
 	return brd->info->nports;
 
@@ -2598,7 +2625,8 @@ static int __devinit mxser_probe(struct pci_dev *pdev,
 		goto err_rel3;
 
 	for (i = 0; i < brd->info->nports; i++)
-		tty_register_device(mxvar_sdriver, brd->idx + i, &pdev->dev);
+		tty_port_register_device(&brd->ports[i].port, mxvar_sdriver,
+				brd->idx + i, &pdev->dev);
 
 	pci_set_drvdata(pdev, brd);
 
@@ -2695,7 +2723,8 @@ static int __init mxser_module_init(void)
 
 		brd->idx = m * MXSER_PORTS_PER_BOARD;
 		for (i = 0; i < brd->info->nports; i++)
-			tty_register_device(mxvar_sdriver, brd->idx + i, NULL);
+			tty_port_register_device(&brd->ports[i].port,
+					mxvar_sdriver, brd->idx + i, NULL);
 
 		m++;
 	}
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index c43b683b6eb..1e8e8ce5595 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -108,7 +108,7 @@ struct gsm_mux_net {
  */
 
 struct gsm_msg {
-	struct gsm_msg *next;
+	struct list_head list;
 	u8 addr;		/* DLCI address + flags */
 	u8 ctrl;		/* Control byte + flags */
 	unsigned int len;	/* Length of data block (can be zero) */
@@ -245,8 +245,7 @@ struct gsm_mux {
 	unsigned int tx_bytes;		/* TX data outstanding */
 #define TX_THRESH_HI		8192
 #define TX_THRESH_LO		2048
-	struct gsm_msg *tx_head;	/* Pending data packets */
-	struct gsm_msg *tx_tail;
+	struct list_head tx_list;	/* Pending data packets */
 
 	/* Control messages */
 	struct timer_list t2_timer;	/* Retransmit timer for commands */
@@ -489,7 +488,7 @@ static void gsm_print_packet(const char *hdr, int addr, int cr,
 	default:
 		if (!(control & 0x01)) {
 			pr_cont("I N(S)%d N(R)%d",
-				(control & 0x0E) >> 1, (control & 0xE) >> 5);
+				(control & 0x0E) >> 1, (control & 0xE0) >> 5);
 		} else switch (control & 0x0F) {
 			case RR:
 				pr_cont("RR(%d)", (control & 0xE0) >> 5);
@@ -663,7 +662,7 @@ static struct gsm_msg *gsm_data_alloc(struct gsm_mux *gsm, u8 addr, int len,
 	m->len = len;
 	m->addr = addr;
 	m->ctrl = ctrl;
-	m->next = NULL;
+	INIT_LIST_HEAD(&m->list);
 	return m;
 }
 
@@ -673,22 +672,21 @@ static struct gsm_msg *gsm_data_alloc(struct gsm_mux *gsm, u8 addr, int len,
  *
  *	The tty device has called us to indicate that room has appeared in
  *	the transmit queue. Ram more data into the pipe if we have any
+ *	If we have been flow-stopped by a CMD_FCOFF, then we can only
+ *	send messages on DLCI0 until CMD_FCON
  *
  *	FIXME: lock against link layer control transmissions
  */
 
 static void gsm_data_kick(struct gsm_mux *gsm)
 {
-	struct gsm_msg *msg = gsm->tx_head;
+	struct gsm_msg *msg, *nmsg;
 	int len;
 	int skip_sof = 0;
 
-	/* FIXME: We need to apply this solely to data messages */
-	if (gsm->constipated)
-		return;
-
-	while (gsm->tx_head != NULL) {
-		msg = gsm->tx_head;
+	list_for_each_entry_safe(msg, nmsg, &gsm->tx_list, list) {
+		if (gsm->constipated && msg->addr)
+			continue;
 		if (gsm->encoding != 0) {
 			gsm->txframe[0] = GSM1_SOF;
 			len = gsm_stuff_frame(msg->data,
@@ -711,14 +709,13 @@ static void gsm_data_kick(struct gsm_mux *gsm)
 						len - skip_sof) < 0)
 			break;
 		/* FIXME: Can eliminate one SOF in many more cases */
-		gsm->tx_head = msg->next;
-		if (gsm->tx_head == NULL)
-			gsm->tx_tail = NULL;
 		gsm->tx_bytes -= msg->len;
-		kfree(msg);
 		/* For a burst of frames skip the extra SOF within the
 		   burst */
 		skip_sof = 1;
+
+		list_del(&msg->list);
+		kfree(msg);
 	}
 }
 
@@ -768,11 +765,7 @@ static void __gsm_data_queue(struct gsm_dlci *dlci, struct gsm_msg *msg)
 	msg->data = dp;
 
 	/* Add to the actual output queue */
-	if (gsm->tx_tail)
-		gsm->tx_tail->next = msg;
-	else
-		gsm->tx_head = msg;
-	gsm->tx_tail = msg;
+	list_add_tail(&msg->list, &gsm->tx_list);
 	gsm->tx_bytes += msg->len;
 	gsm_data_kick(gsm);
 }
@@ -875,7 +868,7 @@ static int gsm_dlci_data_output_framed(struct gsm_mux *gsm,
 
 	/* dlci->skb is locked by tx_lock */
 	if (dlci->skb == NULL) {
-		dlci->skb = skb_dequeue(&dlci->skb_list);
+		dlci->skb = skb_dequeue_tail(&dlci->skb_list);
 		if (dlci->skb == NULL)
 			return 0;
 		first = 1;
@@ -886,7 +879,7 @@ static int gsm_dlci_data_output_framed(struct gsm_mux *gsm,
 	if (len > gsm->mtu) {
 		if (dlci->adaption == 3) {
 			/* Over long frame, bin it */
-			kfree_skb(dlci->skb);
+			dev_kfree_skb_any(dlci->skb);
 			dlci->skb = NULL;
 			return 0;
 		}
@@ -899,8 +892,11 @@ static int gsm_dlci_data_output_framed(struct gsm_mux *gsm,
 
 	/* FIXME: need a timer or something to kick this so it can't
 	   get stuck with no work outstanding and no buffer free */
-	if (msg == NULL)
+	if (msg == NULL) {
+		skb_queue_tail(&dlci->skb_list, dlci->skb);
+		dlci->skb = NULL;
 		return -ENOMEM;
+	}
 	dp = msg->data;
 
 	if (dlci->adaption == 4) { /* Interruptible framed (Packetised Data) */
@@ -912,7 +908,7 @@ static int gsm_dlci_data_output_framed(struct gsm_mux *gsm,
 	skb_pull(dlci->skb, len);
 	__gsm_data_queue(dlci, msg);
 	if (last) {
-		kfree_skb(dlci->skb);
+		dev_kfree_skb_any(dlci->skb);
 		dlci->skb = NULL;
 	}
 	return size;
@@ -971,16 +967,22 @@ static void gsm_dlci_data_sweep(struct gsm_mux *gsm)
 static void gsm_dlci_data_kick(struct gsm_dlci *dlci)
 {
 	unsigned long flags;
+	int sweep;
+
+	if (dlci->constipated) 
+		return;
 
 	spin_lock_irqsave(&dlci->gsm->tx_lock, flags);
 	/* If we have nothing running then we need to fire up */
+	sweep = (dlci->gsm->tx_bytes < TX_THRESH_LO);
 	if (dlci->gsm->tx_bytes == 0) {
 		if (dlci->net)
 			gsm_dlci_data_output_framed(dlci->gsm, dlci);
 		else
 			gsm_dlci_data_output(dlci->gsm, dlci);
-	} else if (dlci->gsm->tx_bytes < TX_THRESH_LO)
-		gsm_dlci_data_sweep(dlci->gsm);
+	}
+	if (sweep)
+ 		gsm_dlci_data_sweep(dlci->gsm);
 	spin_unlock_irqrestore(&dlci->gsm->tx_lock, flags);
 }
 
@@ -1027,6 +1029,7 @@ static void gsm_process_modem(struct tty_struct *tty, struct gsm_dlci *dlci,
 {
 	int  mlines = 0;
 	u8 brk = 0;
+	int fc;
 
 	/* The modem status command can either contain one octet (v.24 signals)
 	   or two octets (v.24 signals + break signals). The length field will
@@ -1038,19 +1041,21 @@ static void gsm_process_modem(struct tty_struct *tty, struct gsm_dlci *dlci,
 	else {
 		brk = modem & 0x7f;
 		modem = (modem >> 7) & 0x7f;
-	};
+	}
 
 	/* Flow control/ready to communicate */
-	if (modem & MDM_FC) {
+	fc = (modem & MDM_FC) || !(modem & MDM_RTR);
+	if (fc && !dlci->constipated) {
 		/* Need to throttle our output on this device */
 		dlci->constipated = 1;
-	}
-	if (modem & MDM_RTC) {
-		mlines |= TIOCM_DSR | TIOCM_DTR;
+	} else if (!fc && dlci->constipated) {
 		dlci->constipated = 0;
 		gsm_dlci_data_kick(dlci);
 	}
+
 	/* Map modem bits */
+	if (modem & MDM_RTC)
+		mlines |= TIOCM_DSR | TIOCM_DTR;
 	if (modem & MDM_RTR)
 		mlines |= TIOCM_RTS | TIOCM_CTS;
 	if (modem & MDM_IC)
@@ -1061,7 +1066,7 @@ static void gsm_process_modem(struct tty_struct *tty, struct gsm_dlci *dlci,
 	/* Carrier drop -> hangup */
 	if (tty) {
 		if ((mlines & TIOCM_CD) == 0 && (dlci->modem_rx & TIOCM_CD))
-			if (!(tty->termios->c_cflag & CLOCAL))
+			if (!(tty->termios.c_cflag & CLOCAL))
 				tty_hangup(tty);
 		if (brk & 0x01)
 			tty_insert_flip_char(tty, 0, TTY_BREAK);
@@ -1190,6 +1195,8 @@ static void gsm_control_message(struct gsm_mux *gsm, unsigned int command,
 							u8 *data, int clen)
 {
 	u8 buf[1];
+	unsigned long flags;
+
 	switch (command) {
 	case CMD_CLD: {
 		struct gsm_dlci *dlci = gsm->dlci[0];
@@ -1206,16 +1213,18 @@ static void gsm_control_message(struct gsm_mux *gsm, unsigned int command,
 		gsm_control_reply(gsm, CMD_TEST, data, clen);
 		break;
 	case CMD_FCON:
-		/* Modem wants us to STFU */
-		gsm->constipated = 1;
-		gsm_control_reply(gsm, CMD_FCON, NULL, 0);
-		break;
-	case CMD_FCOFF:
 		/* Modem can accept data again */
 		gsm->constipated = 0;
-		gsm_control_reply(gsm, CMD_FCOFF, NULL, 0);
+		gsm_control_reply(gsm, CMD_FCON, NULL, 0);
 		/* Kick the link in case it is idling */
+		spin_lock_irqsave(&gsm->tx_lock, flags);
 		gsm_data_kick(gsm);
+		spin_unlock_irqrestore(&gsm->tx_lock, flags);
+		break;
+	case CMD_FCOFF:
+		/* Modem wants us to STFU */
+		gsm->constipated = 1;
+		gsm_control_reply(gsm, CMD_FCOFF, NULL, 0);
 		break;
 	case CMD_MSC:
 		/* Out of band modem line change indicator for a DLCI */
@@ -1668,7 +1677,7 @@ static void gsm_dlci_free(struct kref *ref)
 	dlci->gsm->dlci[dlci->addr] = NULL;
 	kfifo_free(dlci->fifo);
 	while ((dlci->skb = skb_dequeue(&dlci->skb_list)))
-		kfree_skb(dlci->skb);
+		dev_kfree_skb(dlci->skb);
 	kfree(dlci);
 }
 
@@ -2007,7 +2016,7 @@ void gsm_cleanup_mux(struct gsm_mux *gsm)
 {
 	int i;
 	struct gsm_dlci *dlci = gsm->dlci[0];
-	struct gsm_msg *txq;
+	struct gsm_msg *txq, *ntxq;
 	struct gsm_control *gc;
 
 	gsm->dead = 1;
@@ -2042,11 +2051,9 @@ void gsm_cleanup_mux(struct gsm_mux *gsm)
 		if (gsm->dlci[i])
 			gsm_dlci_release(gsm->dlci[i]);
 	/* Now wipe the queues */
-	for (txq = gsm->tx_head; txq != NULL; txq = gsm->tx_head) {
-		gsm->tx_head = txq->next;
+	list_for_each_entry_safe(txq, ntxq, &gsm->tx_list, list)
 		kfree(txq);
-	}
-	gsm->tx_tail = NULL;
+	INIT_LIST_HEAD(&gsm->tx_list);
 }
 EXPORT_SYMBOL_GPL(gsm_cleanup_mux);
 
@@ -2157,6 +2164,7 @@ struct gsm_mux *gsm_alloc_mux(void)
 	}
 	spin_lock_init(&gsm->lock);
 	kref_init(&gsm->ref);
+	INIT_LIST_HEAD(&gsm->tx_list);
 
 	gsm->t1 = T1;
 	gsm->t2 = T2;
@@ -2273,7 +2281,7 @@ static void gsmld_receive_buf(struct tty_struct *tty, const unsigned char *cp,
 			gsm->error(gsm, *dp, flags);
 			break;
 		default:
-			WARN_ONCE("%s: unknown flag %d\n",
+			WARN_ONCE(1, "%s: unknown flag %d\n",
 			       tty_name(tty, buf), flags);
 			break;
 		}
@@ -2377,12 +2385,12 @@ static void gsmld_write_wakeup(struct tty_struct *tty)
 
 	/* Queue poll */
 	clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+	spin_lock_irqsave(&gsm->tx_lock, flags);
 	gsm_data_kick(gsm);
 	if (gsm->tx_bytes < TX_THRESH_LO) {
-		spin_lock_irqsave(&gsm->tx_lock, flags);
 		gsm_dlci_data_sweep(gsm);
-		spin_unlock_irqrestore(&gsm->tx_lock, flags);
 	}
+	spin_unlock_irqrestore(&gsm->tx_lock, flags);
 }
 
 /**
@@ -2868,14 +2876,14 @@ static const struct tty_port_operations gsm_port_ops = {
 	.dtr_rts = gsm_dtr_rts,
 };
 
-
-static int gsmtty_open(struct tty_struct *tty, struct file *filp)
+static int gsmtty_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct gsm_mux *gsm;
 	struct gsm_dlci *dlci;
-	struct tty_port *port;
 	unsigned int line = tty->index;
 	unsigned int mux = line >> 6;
+	bool alloc = false;
+	int ret;
 
 	line = line & 0x3F;
 
@@ -2889,14 +2897,35 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	gsm = gsm_mux[mux];
 	if (gsm->dead)
 		return -EL2HLT;
+	/* If DLCI 0 is not yet fully open return an error. This is ok from a locking
+	   perspective as we don't have to worry about this if DLCI0 is lost */
+	if (gsm->dlci[0] && gsm->dlci[0]->state != DLCI_OPEN) 
+		return -EL2NSYNC;
 	dlci = gsm->dlci[line];
-	if (dlci == NULL)
+	if (dlci == NULL) {
+		alloc = true;
 		dlci = gsm_dlci_alloc(gsm, line);
+	}
 	if (dlci == NULL)
 		return -ENOMEM;
-	port = &dlci->port;
-	port->count++;
+	ret = tty_port_install(&dlci->port, driver, tty);
+	if (ret) {
+		if (alloc)
+			dlci_put(dlci);
+		return ret;
+	}
+
 	tty->driver_data = dlci;
+
+	return 0;
+}
+
+static int gsmtty_open(struct tty_struct *tty, struct file *filp)
+{
+	struct gsm_dlci *dlci = tty->driver_data;
+	struct tty_port *port = &dlci->port;
+
+	port->count++;
 	dlci_get(dlci);
 	dlci_get(dlci->gsm->dlci[0]);
 	mux_get(dlci->gsm);
@@ -3043,13 +3072,13 @@ static void gsmtty_set_termios(struct tty_struct *tty, struct ktermios *old)
 	   the RPN control message. This however rapidly gets nasty as we
 	   then have to remap modem signals each way according to whether
 	   our virtual cable is null modem etc .. */
-	tty_termios_copy_hw(tty->termios, old);
+	tty_termios_copy_hw(&tty->termios, old);
 }
 
 static void gsmtty_throttle(struct tty_struct *tty)
 {
 	struct gsm_dlci *dlci = tty->driver_data;
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		dlci->modem_tx &= ~TIOCM_DTR;
 	dlci->throttled = 1;
 	/* Send an MSC with DTR cleared */
@@ -3059,7 +3088,7 @@ static void gsmtty_throttle(struct tty_struct *tty)
 static void gsmtty_unthrottle(struct tty_struct *tty)
 {
 	struct gsm_dlci *dlci = tty->driver_data;
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		dlci->modem_tx |= TIOCM_DTR;
 	dlci->throttled = 0;
 	/* Send an MSC with DTR set */
@@ -3085,6 +3114,7 @@ static int gsmtty_break_ctl(struct tty_struct *tty, int state)
 
 /* Virtual ttys for the demux */
 static const struct tty_operations gsmtty_ops = {
+	.install		= gsmtty_install,
 	.open			= gsmtty_open,
 	.close			= gsmtty_close,
 	.write			= gsmtty_write,
diff --git a/drivers/tty/n_r3964.c b/drivers/tty/n_r3964.c
index 5c6c31459a2..1e6405070ce 100644
--- a/drivers/tty/n_r3964.c
+++ b/drivers/tty/n_r3964.c
@@ -1065,7 +1065,7 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
 
 	TRACE_L("read()");
 
-	tty_lock();
+	tty_lock(tty);
 
 	pClient = findClient(pInfo, task_pid(current));
 	if (pClient) {
@@ -1077,7 +1077,7 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
 				goto unlock;
 			}
 			/* block until there is a message: */
-			wait_event_interruptible_tty(pInfo->read_wait,
+			wait_event_interruptible_tty(tty, pInfo->read_wait,
 					(pMsg = remove_msg(pInfo, pClient)));
 		}
 
@@ -1107,7 +1107,7 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file,
 	}
 	ret = -EPERM;
 unlock:
-	tty_unlock();
+	tty_unlock(tty);
 	return ret;
 }
 
@@ -1156,7 +1156,7 @@ static ssize_t r3964_write(struct tty_struct *tty, struct file *file,
 	pHeader->locks = 0;
 	pHeader->owner = NULL;
 
-	tty_lock();
+	tty_lock(tty);
 
 	pClient = findClient(pInfo, task_pid(current));
 	if (pClient) {
@@ -1175,7 +1175,7 @@ static ssize_t r3964_write(struct tty_struct *tty, struct file *file,
 	add_tx_queue(pInfo, pHeader);
 	trigger_transmit(pInfo);
 
-	tty_unlock();
+	tty_unlock(tty);
 
 	return 0;
 }
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index ee1c268f5f9..8c0b7b42319 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -92,10 +92,18 @@ static inline int tty_put_user(struct tty_struct *tty, unsigned char x,
 
 static void n_tty_set_room(struct tty_struct *tty)
 {
-	/* tty->read_cnt is not read locked ? */
-	int	left = N_TTY_BUF_SIZE - tty->read_cnt - 1;
+	int left;
 	int old_left;
 
+	/* tty->read_cnt is not read locked ? */
+	if (I_PARMRK(tty)) {
+		/* Multiply read_cnt by 3, since each byte might take up to
+		 * three times as many spaces when PARMRK is set (depending on
+		 * its flags, e.g. parity error). */
+		left = N_TTY_BUF_SIZE - tty->read_cnt * 3 - 1;
+	} else
+		left = N_TTY_BUF_SIZE - tty->read_cnt - 1;
+
 	/*
 	 * If we are doing input canonicalization, and there are no
 	 * pending newlines, let characters through without limit, so
@@ -1432,6 +1440,12 @@ static void n_tty_receive_buf(struct tty_struct *tty, const unsigned char *cp,
 	 */
 	if (tty->receive_room < TTY_THRESHOLD_THROTTLE)
 		tty_throttle(tty);
+
+        /* FIXME: there is a tiny race here if the receive room check runs
+           before the other work executes and empties the buffer (upping
+           the receiving room and unthrottling. We then throttle and get
+           stuck. This has been observed and traced down by Vincent Pillet/
+           We need to address this when we sort out out the rx path locking */
 }
 
 int is_ignored(int sig)
@@ -1460,7 +1474,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 	BUG_ON(!tty);
 
 	if (old)
-		canon_change = (old->c_lflag ^ tty->termios->c_lflag) & ICANON;
+		canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON;
 	if (canon_change) {
 		memset(&tty->read_flags, 0, sizeof tty->read_flags);
 		tty->canon_head = tty->read_tail;
@@ -1728,7 +1742,8 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 
 do_it_again:
 
-	BUG_ON(!tty->read_buf);
+	if (WARN_ON(!tty->read_buf))
+		return -EAGAIN;
 
 	c = job_control(tty, file);
 	if (c < 0)
@@ -1832,13 +1847,13 @@ do_it_again:
 
 		if (tty->icanon && !L_EXTPROC(tty)) {
 			/* N.B. avoid overrun if nr == 0 */
+			spin_lock_irqsave(&tty->read_lock, flags);
 			while (nr && tty->read_cnt) {
 				int eol;
 
 				eol = test_and_clear_bit(tty->read_tail,
 						tty->read_flags);
 				c = tty->read_buf[tty->read_tail];
-				spin_lock_irqsave(&tty->read_lock, flags);
 				tty->read_tail = ((tty->read_tail+1) &
 						  (N_TTY_BUF_SIZE-1));
 				tty->read_cnt--;
@@ -1856,15 +1871,19 @@ do_it_again:
 					if (tty_put_user(tty, c, b++)) {
 						retval = -EFAULT;
 						b--;
+						spin_lock_irqsave(&tty->read_lock, flags);
 						break;
 					}
 					nr--;
 				}
 				if (eol) {
 					tty_audit_push(tty);
+					spin_lock_irqsave(&tty->read_lock, flags);
 					break;
 				}
+				spin_lock_irqsave(&tty->read_lock, flags);
 			}
+			spin_unlock_irqrestore(&tty->read_lock, flags);
 			if (retval)
 				break;
 		} else {
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index e7592f9037d..b917c942495 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -1473,8 +1473,8 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
 		port->dc = dc;
 		tty_port_init(&port->port);
 		port->port.ops = &noz_tty_port_ops;
-		tty_dev = tty_register_device(ntty_driver, dc->index_start + i,
-							&pdev->dev);
+		tty_dev = tty_port_register_device(&port->port, ntty_driver,
+				dc->index_start + i, &pdev->dev);
 
 		if (IS_ERR(tty_dev)) {
 			ret = PTR_ERR(tty_dev);
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 5505ffc91da..a82b39939a9 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -47,6 +47,7 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
 	wake_up_interruptible(&tty->read_wait);
 	wake_up_interruptible(&tty->write_wait);
 	tty->packet = 0;
+	/* Review - krefs on tty_link ?? */
 	if (!tty->link)
 		return;
 	tty->link->packet = 0;
@@ -62,9 +63,9 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
 		        mutex_unlock(&devpts_mutex);
 		}
 #endif
-		tty_unlock();
+		tty_unlock(tty);
 		tty_vhangup(tty->link);
-		tty_lock();
+		tty_lock(tty);
 	}
 }
 
@@ -231,8 +232,8 @@ out:
 static void pty_set_termios(struct tty_struct *tty,
 					struct ktermios *old_termios)
 {
-	tty->termios->c_cflag &= ~(CSIZE | PARENB);
-	tty->termios->c_cflag |= (CS8 | CREAD);
+	tty->termios.c_cflag &= ~(CSIZE | PARENB);
+	tty->termios.c_cflag |= (CS8 | CREAD);
 }
 
 /**
@@ -282,60 +283,110 @@ done:
 	return 0;
 }
 
-/* Traditional BSD devices */
-#ifdef CONFIG_LEGACY_PTYS
-
-static int pty_install(struct tty_driver *driver, struct tty_struct *tty)
+/**
+ *	pty_common_install		-	set up the pty pair
+ *	@driver: the pty driver
+ *	@tty: the tty being instantiated
+ *	@bool: legacy, true if this is BSD style
+ *
+ *	Perform the initial set up for the tty/pty pair. Called from the
+ *	tty layer when the port is first opened.
+ *
+ *	Locking: the caller must hold the tty_mutex
+ */
+static int pty_common_install(struct tty_driver *driver, struct tty_struct *tty,
+		bool legacy)
 {
 	struct tty_struct *o_tty;
+	struct tty_port *ports[2];
 	int idx = tty->index;
-	int retval;
+	int retval = -ENOMEM;
 
 	o_tty = alloc_tty_struct();
 	if (!o_tty)
-		return -ENOMEM;
+		goto err;
+	ports[0] = kmalloc(sizeof **ports, GFP_KERNEL);
+	ports[1] = kmalloc(sizeof **ports, GFP_KERNEL);
+	if (!ports[0] || !ports[1])
+		goto err_free_tty;
 	if (!try_module_get(driver->other->owner)) {
 		/* This cannot in fact currently happen */
-		retval = -ENOMEM;
 		goto err_free_tty;
 	}
 	initialize_tty_struct(o_tty, driver->other, idx);
 
-	/* We always use new tty termios data so we can do this
-	   the easy way .. */
-	retval = tty_init_termios(tty);
-	if (retval)
-		goto err_deinit_tty;
-
-	retval = tty_init_termios(o_tty);
-	if (retval)
-		goto err_free_termios;
+	if (legacy) {
+		/* We always use new tty termios data so we can do this
+		   the easy way .. */
+		retval = tty_init_termios(tty);
+		if (retval)
+			goto err_deinit_tty;
+
+		retval = tty_init_termios(o_tty);
+		if (retval)
+			goto err_free_termios;
+
+		driver->other->ttys[idx] = o_tty;
+		driver->ttys[idx] = tty;
+	} else {
+		memset(&tty->termios_locked, 0, sizeof(tty->termios_locked));
+		tty->termios = driver->init_termios;
+		memset(&o_tty->termios_locked, 0, sizeof(tty->termios_locked));
+		o_tty->termios = driver->other->init_termios;
+	}
 
 	/*
 	 * Everything allocated ... set up the o_tty structure.
 	 */
-	driver->other->ttys[idx] = o_tty;
 	tty_driver_kref_get(driver->other);
 	if (driver->subtype == PTY_TYPE_MASTER)
 		o_tty->count++;
 	/* Establish the links in both directions */
 	tty->link   = o_tty;
 	o_tty->link = tty;
+	tty_port_init(ports[0]);
+	tty_port_init(ports[1]);
+	o_tty->port = ports[0];
+	tty->port = ports[1];
 
 	tty_driver_kref_get(driver);
 	tty->count++;
-	driver->ttys[idx] = tty;
 	return 0;
 err_free_termios:
-	tty_free_termios(tty);
+	if (legacy)
+		tty_free_termios(tty);
 err_deinit_tty:
 	deinitialize_tty_struct(o_tty);
 	module_put(o_tty->driver->owner);
 err_free_tty:
+	kfree(ports[0]);
+	kfree(ports[1]);
 	free_tty_struct(o_tty);
+err:
 	return retval;
 }
 
+static void pty_cleanup(struct tty_struct *tty)
+{
+	kfree(tty->port);
+}
+
+/* Traditional BSD devices */
+#ifdef CONFIG_LEGACY_PTYS
+
+static int pty_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	return pty_common_install(driver, tty, true);
+}
+
+static void pty_remove(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct tty_struct *pair = tty->link;
+	driver->ttys[tty->index] = NULL;
+	if (pair)
+		pair->driver->ttys[pair->index] = NULL;
+}
+
 static int pty_bsd_ioctl(struct tty_struct *tty,
 			 unsigned int cmd, unsigned long arg)
 {
@@ -366,7 +417,9 @@ static const struct tty_operations master_pty_ops_bsd = {
 	.unthrottle = pty_unthrottle,
 	.set_termios = pty_set_termios,
 	.ioctl = pty_bsd_ioctl,
-	.resize = pty_resize
+	.cleanup = pty_cleanup,
+	.resize = pty_resize,
+	.remove = pty_remove
 };
 
 static const struct tty_operations slave_pty_ops_bsd = {
@@ -379,7 +432,9 @@ static const struct tty_operations slave_pty_ops_bsd = {
 	.chars_in_buffer = pty_chars_in_buffer,
 	.unthrottle = pty_unthrottle,
 	.set_termios = pty_set_termios,
-	.resize = pty_resize
+	.cleanup = pty_cleanup,
+	.resize = pty_resize,
+	.remove = pty_remove
 };
 
 static void __init legacy_pty_init(void)
@@ -389,12 +444,18 @@ static void __init legacy_pty_init(void)
 	if (legacy_count <= 0)
 		return;
 
-	pty_driver = alloc_tty_driver(legacy_count);
-	if (!pty_driver)
+	pty_driver = tty_alloc_driver(legacy_count,
+			TTY_DRIVER_RESET_TERMIOS |
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_DYNAMIC_ALLOC);
+	if (IS_ERR(pty_driver))
 		panic("Couldn't allocate pty driver");
 
-	pty_slave_driver = alloc_tty_driver(legacy_count);
-	if (!pty_slave_driver)
+	pty_slave_driver = tty_alloc_driver(legacy_count,
+			TTY_DRIVER_RESET_TERMIOS |
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_DYNAMIC_ALLOC);
+	if (IS_ERR(pty_slave_driver))
 		panic("Couldn't allocate pty slave driver");
 
 	pty_driver->driver_name = "pty_master";
@@ -410,7 +471,6 @@ static void __init legacy_pty_init(void)
 	pty_driver->init_termios.c_lflag = 0;
 	pty_driver->init_termios.c_ispeed = 38400;
 	pty_driver->init_termios.c_ospeed = 38400;
-	pty_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW;
 	pty_driver->other = pty_slave_driver;
 	tty_set_operations(pty_driver, &master_pty_ops_bsd);
 
@@ -424,8 +484,6 @@ static void __init legacy_pty_init(void)
 	pty_slave_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
 	pty_slave_driver->init_termios.c_ispeed = 38400;
 	pty_slave_driver->init_termios.c_ospeed = 38400;
-	pty_slave_driver->flags = TTY_DRIVER_RESET_TERMIOS |
-					TTY_DRIVER_REAL_RAW;
 	pty_slave_driver->other = pty_driver;
 	tty_set_operations(pty_slave_driver, &slave_pty_ops_bsd);
 
@@ -497,78 +555,22 @@ static struct tty_struct *pts_unix98_lookup(struct tty_driver *driver,
 	return tty;
 }
 
-static void pty_unix98_shutdown(struct tty_struct *tty)
-{
-	tty_driver_remove_tty(tty->driver, tty);
-	/* We have our own method as we don't use the tty index */
-	kfree(tty->termios);
-}
-
 /* We have no need to install and remove our tty objects as devpts does all
    the work for us */
 
 static int pty_unix98_install(struct tty_driver *driver, struct tty_struct *tty)
 {
-	struct tty_struct *o_tty;
-	int idx = tty->index;
-
-	o_tty = alloc_tty_struct();
-	if (!o_tty)
-		return -ENOMEM;
-	if (!try_module_get(driver->other->owner)) {
-		/* This cannot in fact currently happen */
-		goto err_free_tty;
-	}
-	initialize_tty_struct(o_tty, driver->other, idx);
-
-	tty->termios = kzalloc(sizeof(struct ktermios[2]), GFP_KERNEL);
-	if (tty->termios == NULL)
-		goto err_free_mem;
-	*tty->termios = driver->init_termios;
-	tty->termios_locked = tty->termios + 1;
-
-	o_tty->termios = kzalloc(sizeof(struct ktermios[2]), GFP_KERNEL);
-	if (o_tty->termios == NULL)
-		goto err_free_mem;
-	*o_tty->termios = driver->other->init_termios;
-	o_tty->termios_locked = o_tty->termios + 1;
-
-	tty_driver_kref_get(driver->other);
-	if (driver->subtype == PTY_TYPE_MASTER)
-		o_tty->count++;
-	/* Establish the links in both directions */
-	tty->link   = o_tty;
-	o_tty->link = tty;
-	/*
-	 * All structures have been allocated, so now we install them.
-	 * Failures after this point use release_tty to clean up, so
-	 * there's no need to null out the local pointers.
-	 */
-	tty_driver_kref_get(driver);
-	tty->count++;
-	return 0;
-err_free_mem:
-	deinitialize_tty_struct(o_tty);
-	kfree(o_tty->termios);
-	kfree(tty->termios);
-	module_put(o_tty->driver->owner);
-err_free_tty:
-	free_tty_struct(o_tty);
-	return -ENOMEM;
-}
-
-static void ptm_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
-{
+	return pty_common_install(driver, tty, false);
 }
 
-static void pts_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
+static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
 {
 }
 
 static const struct tty_operations ptm_unix98_ops = {
 	.lookup = ptm_unix98_lookup,
 	.install = pty_unix98_install,
-	.remove = ptm_unix98_remove,
+	.remove = pty_unix98_remove,
 	.open = pty_open,
 	.close = pty_close,
 	.write = pty_write,
@@ -578,14 +580,14 @@ static const struct tty_operations ptm_unix98_ops = {
 	.unthrottle = pty_unthrottle,
 	.set_termios = pty_set_termios,
 	.ioctl = pty_unix98_ioctl,
-	.shutdown = pty_unix98_shutdown,
-	.resize = pty_resize
+	.resize = pty_resize,
+	.cleanup = pty_cleanup
 };
 
 static const struct tty_operations pty_unix98_ops = {
 	.lookup = pts_unix98_lookup,
 	.install = pty_unix98_install,
-	.remove = pts_unix98_remove,
+	.remove = pty_unix98_remove,
 	.open = pty_open,
 	.close = pty_close,
 	.write = pty_write,
@@ -594,7 +596,7 @@ static const struct tty_operations pty_unix98_ops = {
 	.chars_in_buffer = pty_chars_in_buffer,
 	.unthrottle = pty_unthrottle,
 	.set_termios = pty_set_termios,
-	.shutdown = pty_unix98_shutdown
+	.cleanup = pty_cleanup,
 };
 
 /**
@@ -622,26 +624,28 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 		return retval;
 
 	/* find a device that is not in use. */
-	tty_lock();
+	mutex_lock(&devpts_mutex);
 	index = devpts_new_index(inode);
-	tty_unlock();
 	if (index < 0) {
 		retval = index;
+		mutex_unlock(&devpts_mutex);
 		goto err_file;
 	}
 
+	mutex_unlock(&devpts_mutex);
+
 	mutex_lock(&tty_mutex);
-	mutex_lock(&devpts_mutex);
 	tty = tty_init_dev(ptm_driver, index);
-	mutex_unlock(&devpts_mutex);
-	tty_lock();
-	mutex_unlock(&tty_mutex);
 
 	if (IS_ERR(tty)) {
 		retval = PTR_ERR(tty);
 		goto out;
 	}
 
+	/* The tty returned here is locked so we can safely
+	   drop the mutex */
+	mutex_unlock(&tty_mutex);
+
 	set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
 
 	tty_add_file(tty, filp);
@@ -654,15 +658,15 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	if (retval)
 		goto err_release;
 
-	tty_unlock();
+	tty_unlock(tty);
 	return 0;
 err_release:
-	tty_unlock();
+	tty_unlock(tty);
 	tty_release(inode, filp);
 	return retval;
 out:
+	mutex_unlock(&tty_mutex);
 	devpts_kill_index(inode, index);
-	tty_unlock();
 err_file:
 	tty_free_file(filp);
 	return retval;
@@ -672,11 +676,21 @@ static struct file_operations ptmx_fops;
 
 static void __init unix98_pty_init(void)
 {
-	ptm_driver = alloc_tty_driver(NR_UNIX98_PTY_MAX);
-	if (!ptm_driver)
+	ptm_driver = tty_alloc_driver(NR_UNIX98_PTY_MAX,
+			TTY_DRIVER_RESET_TERMIOS |
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_DYNAMIC_DEV |
+			TTY_DRIVER_DEVPTS_MEM |
+			TTY_DRIVER_DYNAMIC_ALLOC);
+	if (IS_ERR(ptm_driver))
 		panic("Couldn't allocate Unix98 ptm driver");
-	pts_driver = alloc_tty_driver(NR_UNIX98_PTY_MAX);
-	if (!pts_driver)
+	pts_driver = tty_alloc_driver(NR_UNIX98_PTY_MAX,
+			TTY_DRIVER_RESET_TERMIOS |
+			TTY_DRIVER_REAL_RAW |
+			TTY_DRIVER_DYNAMIC_DEV |
+			TTY_DRIVER_DEVPTS_MEM |
+			TTY_DRIVER_DYNAMIC_ALLOC);
+	if (IS_ERR(pts_driver))
 		panic("Couldn't allocate Unix98 pts driver");
 
 	ptm_driver->driver_name = "pty_master";
@@ -692,8 +706,6 @@ static void __init unix98_pty_init(void)
 	ptm_driver->init_termios.c_lflag = 0;
 	ptm_driver->init_termios.c_ispeed = 38400;
 	ptm_driver->init_termios.c_ospeed = 38400;
-	ptm_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
-		TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
 	ptm_driver->other = pts_driver;
 	tty_set_operations(ptm_driver, &ptm_unix98_ops);
 
@@ -707,8 +719,6 @@ static void __init unix98_pty_init(void)
 	pts_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
 	pts_driver->init_termios.c_ispeed = 38400;
 	pts_driver->init_termios.c_ospeed = 38400;
-	pts_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
-		TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
 	pts_driver->other = ptm_driver;
 	tty_set_operations(pts_driver, &pty_unix98_ops);
 
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 777d5f9cf6c..9700d34b20a 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -704,8 +704,8 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
 	spin_lock_init(&info->slock);
 	mutex_init(&info->write_mtx);
 	rp_table[line] = info;
-	tty_register_device(rocket_driver, line, pci_dev ? &pci_dev->dev :
-			NULL);
+	tty_port_register_device(&info->port, rocket_driver, line,
+			pci_dev ? &pci_dev->dev : NULL);
 }
 
 /*
@@ -720,7 +720,7 @@ static void configure_r_port(struct tty_struct *tty, struct r_port *info,
 	unsigned rocketMode;
 	int bits, baud, divisor;
 	CHANNEL_t *cp;
-	struct ktermios *t = tty->termios;
+	struct ktermios *t = &tty->termios;
 
 	cp = &info->channel;
 	cflag = t->c_cflag;
@@ -978,7 +978,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 			tty->alt_speed = 460800;
 
 		configure_r_port(tty, info, NULL);
-		if (tty->termios->c_cflag & CBAUD) {
+		if (tty->termios.c_cflag & CBAUD) {
 			sSetDTR(cp);
 			sSetRTS(cp);
 		}
@@ -1089,35 +1089,35 @@ static void rp_set_termios(struct tty_struct *tty,
 	if (rocket_paranoia_check(info, "rp_set_termios"))
 		return;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	/*
 	 * This driver doesn't support CS5 or CS6
 	 */
 	if (((cflag & CSIZE) == CS5) || ((cflag & CSIZE) == CS6))
-		tty->termios->c_cflag =
+		tty->termios.c_cflag =
 		    ((cflag & ~CSIZE) | (old_termios->c_cflag & CSIZE));
 	/* Or CMSPAR */
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 
 	configure_r_port(tty, info, old_termios);
 
 	cp = &info->channel;
 
 	/* Handle transition to B0 status */
-	if ((old_termios->c_cflag & CBAUD) && !(tty->termios->c_cflag & CBAUD)) {
+	if ((old_termios->c_cflag & CBAUD) && !(tty->termios.c_cflag & CBAUD)) {
 		sClrDTR(cp);
 		sClrRTS(cp);
 	}
 
 	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) && (tty->termios->c_cflag & CBAUD)) {
-		if (!tty->hw_stopped || !(tty->termios->c_cflag & CRTSCTS))
+	if (!(old_termios->c_cflag & CBAUD) && (tty->termios.c_cflag & CBAUD)) {
+		if (!tty->hw_stopped || !(tty->termios.c_cflag & CRTSCTS))
 			sSetRTS(cp);
 		sSetDTR(cp);
 	}
 
-	if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios->c_cflag & CRTSCTS)) {
+	if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		rp_start(tty);
 	}
diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index 3ed20e435e5..66c38a3f74c 100644
--- a/drivers/tty/serial/68328serial.c
+++ b/drivers/tty/serial/68328serial.c
@@ -515,7 +515,7 @@ static void change_speed(struct m68k_serial *info, struct tty_struct *tty)
 	unsigned cflag;
 	int	i;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 	if (!(port = info->port))
 		return;
 
@@ -617,7 +617,7 @@ static void rs_set_ldisc(struct tty_struct *tty)
 	if (serial_paranoia_check(info, tty->name, "rs_set_ldisc"))
 		return;
 
-	info->is_cons = (tty->termios->c_line == N_TTY);
+	info->is_cons = (tty->termios.c_line == N_TTY);
 	
 	printk("ttyS%d console mode %s\n", info->line, info->is_cons ? "on" : "off");
 }
@@ -985,7 +985,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	change_speed(info, tty);
 
 	if ((old_termios->c_cflag & CRTSCTS) &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		rs_start(tty);
 	}
@@ -1070,7 +1070,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
 		if (tty->ldisc.close)
 			(tty->ldisc.close)(tty);
 		tty->ldisc = ldiscs[N_TTY];
-		tty->termios->c_line = N_TTY;
+		tty->termios.c_line = N_TTY;
 		if (tty->ldisc.open)
 			(tty->ldisc.open)(tty);
 	}
@@ -1189,12 +1189,6 @@ rs68328_init(void)
 	serial_driver->flags = TTY_DRIVER_REAL_RAW;
 	tty_set_operations(serial_driver, &rs_ops);
 
-	if (tty_register_driver(serial_driver)) {
-		put_tty_driver(serial_driver);
-		printk(KERN_ERR "Couldn't register serial driver\n");
-		return -ENOMEM;
-	}
-
 	local_irq_save(flags);
 
 	for(i=0;i<NR_PORTS;i++) {
@@ -1224,8 +1218,17 @@ rs68328_init(void)
 			    0,
 			    "M68328_UART", info))
                 panic("Unable to attach 68328 serial interrupt\n");
+
+	    tty_port_link_device(&info->tport, serial_driver, i);
 	}
 	local_irq_restore(flags);
+
+	if (tty_register_driver(serial_driver)) {
+		put_tty_driver(serial_driver);
+		printk(KERN_ERR "Couldn't register serial driver\n");
+		return -ENOMEM;
+	}
+
 	return 0;
 }
 
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c
index 8123f784bcd..3ba4234592b 100644
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -290,6 +290,9 @@ static const struct serial8250_config uart_config[] = {
 				  UART_FCR_R_TRIG_00 | UART_FCR_T_TRIG_00,
 		.flags		= UART_CAP_FIFO,
 	},
+	[PORT_8250_CIR] = {
+		.name		= "CIR port"
+	}
 };
 
 /* Uart divisor latch read */
@@ -1037,6 +1040,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 	unsigned char save_lcr, save_mcr;
 	struct uart_port *port = &up->port;
 	unsigned long flags;
+	unsigned int old_capabilities;
 
 	if (!port->iobase && !port->mapbase && !port->membase)
 		return;
@@ -1087,6 +1091,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 			/*
 			 * We failed; there's nothing here
 			 */
+			spin_unlock_irqrestore(&port->lock, flags);
 			DEBUG_AUTOCONF("IER test failed (%02x, %02x) ",
 				       scratch2, scratch3);
 			goto out;
@@ -1110,6 +1115,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 		status1 = serial_in(up, UART_MSR) & 0xF0;
 		serial_out(up, UART_MCR, save_mcr);
 		if (status1 != 0x90) {
+			spin_unlock_irqrestore(&port->lock, flags);
 			DEBUG_AUTOCONF("LOOP test failed (%02x) ",
 				       status1);
 			goto out;
@@ -1132,8 +1138,6 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
 	scratch = serial_in(up, UART_IIR) >> 6;
 
-	DEBUG_AUTOCONF("iir=%d ", scratch);
-
 	switch (scratch) {
 	case 0:
 		autoconfig_8250(up);
@@ -1167,19 +1171,13 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 
 	serial_out(up, UART_LCR, save_lcr);
 
-	if (up->capabilities != uart_config[port->type].flags) {
-		printk(KERN_WARNING
-		       "ttyS%d: detected caps %08x should be %08x\n",
-		       serial_index(port), up->capabilities,
-		       uart_config[port->type].flags);
-	}
-
 	port->fifosize = uart_config[up->port.type].fifo_size;
+	old_capabilities = up->capabilities; 
 	up->capabilities = uart_config[port->type].flags;
 	up->tx_loadsz = uart_config[port->type].tx_loadsz;
 
 	if (port->type == PORT_UNKNOWN)
-		goto out;
+		goto out_lock;
 
 	/*
 	 * Reset the UART.
@@ -1196,8 +1194,16 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 	else
 		serial_out(up, UART_IER, 0);
 
- out:
+out_lock:
 	spin_unlock_irqrestore(&port->lock, flags);
+	if (up->capabilities != old_capabilities) {
+		printk(KERN_WARNING
+		       "ttyS%d: detected caps %08x should be %08x\n",
+		       serial_index(port), old_capabilities,
+		       up->capabilities);
+	}
+out:
+	DEBUG_AUTOCONF("iir=%d ", scratch);
 	DEBUG_AUTOCONF("type=%s\n", uart_config[port->type].name);
 }
 
@@ -1897,6 +1903,9 @@ static int serial8250_startup(struct uart_port *port)
 	unsigned char lsr, iir;
 	int retval;
 
+	if (port->type == PORT_8250_CIR)
+		return -ENODEV;
+
 	port->fifosize = uart_config[up->port.type].fifo_size;
 	up->tx_loadsz = uart_config[up->port.type].tx_loadsz;
 	up->capabilities = uart_config[up->port.type].flags;
@@ -2202,6 +2211,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
 	unsigned char cval, fcr = 0;
 	unsigned long flags;
 	unsigned int baud, quot;
+	int fifo_bug = 0;
 
 	switch (termios->c_cflag & CSIZE) {
 	case CS5:
@@ -2221,8 +2231,11 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	if (termios->c_cflag & CSTOPB)
 		cval |= UART_LCR_STOP;
-	if (termios->c_cflag & PARENB)
+	if (termios->c_cflag & PARENB) {
 		cval |= UART_LCR_PARITY;
+		if (up->bugs & UART_BUG_PARITY)
+			fifo_bug = 1;
+	}
 	if (!(termios->c_cflag & PARODD))
 		cval |= UART_LCR_EPAR;
 #ifdef CMSPAR
@@ -2246,7 +2259,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	if (up->capabilities & UART_CAP_FIFO && port->fifosize > 1) {
 		fcr = uart_config[port->type].fcr;
-		if (baud < 2400) {
+		if (baud < 2400 || fifo_bug) {
 			fcr &= ~UART_FCR_TRIGGER_MASK;
 			fcr |= UART_FCR_TRIGGER_1;
 		}
@@ -2336,7 +2349,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
 			serial_port_out(port, UART_EFR, efr);
 	}
 
-#ifdef CONFIG_ARCH_OMAP
+#ifdef CONFIG_ARCH_OMAP1
 	/* Workaround to enable 115200 baud on OMAP1510 internal ports */
 	if (cpu_is_omap1510() && is_omap_port(up)) {
 		if (baud == 115200) {
@@ -2426,7 +2439,7 @@ static unsigned int serial8250_port_size(struct uart_8250_port *pt)
 {
 	if (pt->port.iotype == UPIO_AU)
 		return 0x1000;
-#ifdef CONFIG_ARCH_OMAP
+#ifdef CONFIG_ARCH_OMAP1
 	if (is_omap_port(pt))
 		return 0x16 << pt->port.regshift;
 #endif
@@ -2550,7 +2563,10 @@ static int serial8250_request_port(struct uart_port *port)
 {
 	struct uart_8250_port *up =
 		container_of(port, struct uart_8250_port, port);
-	int ret = 0;
+	int ret;
+
+	if (port->type == PORT_8250_CIR)
+		return -ENODEV;
 
 	ret = serial8250_request_std_resource(up);
 	if (ret == 0 && port->type == PORT_RSA) {
@@ -2569,6 +2585,9 @@ static void serial8250_config_port(struct uart_port *port, int flags)
 	int probeflags = PROBE_ANY;
 	int ret;
 
+	if (port->type == PORT_8250_CIR)
+		return;
+
 	/*
 	 * Find the region that we can probe for.  This in turn
 	 * tells us whether we can probe for the type of port.
@@ -2668,6 +2687,9 @@ static void __init serial8250_isa_init_ports(void)
 		return;
 	first = 0;
 
+	if (nr_uarts > UART_NR)
+		nr_uarts = UART_NR;
+
 	for (i = 0; i < nr_uarts; i++) {
 		struct uart_8250_port *up = &serial8250_ports[i];
 		struct uart_port *port = &up->port;
@@ -2677,6 +2699,7 @@ static void __init serial8250_isa_init_ports(void)
 
 		init_timer(&up->timer);
 		up->timer.function = serial8250_timeout;
+		up->cur_iotype = 0xFF;
 
 		/*
 		 * ALPHA_KLUDGE_MCR needs to be killed.
@@ -2728,13 +2751,9 @@ serial8250_register_ports(struct uart_driver *drv, struct device *dev)
 
 	for (i = 0; i < nr_uarts; i++) {
 		struct uart_8250_port *up = &serial8250_ports[i];
-		up->cur_iotype = 0xFF;
-	}
-
-	serial8250_isa_init_ports();
 
-	for (i = 0; i < nr_uarts; i++) {
-		struct uart_8250_port *up = &serial8250_ports[i];
+		if (up->port.dev)
+			continue;
 
 		up->port.dev = dev;
 
@@ -2859,9 +2878,6 @@ static struct console serial8250_console = {
 
 static int __init serial8250_console_init(void)
 {
-	if (nr_uarts > UART_NR)
-		nr_uarts = UART_NR;
-
 	serial8250_isa_init_ports();
 	register_console(&serial8250_console);
 	return 0;
@@ -2979,36 +2995,36 @@ void serial8250_resume_port(int line)
 static int __devinit serial8250_probe(struct platform_device *dev)
 {
 	struct plat_serial8250_port *p = dev->dev.platform_data;
-	struct uart_port port;
+	struct uart_8250_port uart;
 	int ret, i, irqflag = 0;
 
-	memset(&port, 0, sizeof(struct uart_port));
+	memset(&uart, 0, sizeof(uart));
 
 	if (share_irqs)
 		irqflag = IRQF_SHARED;
 
 	for (i = 0; p && p->flags != 0; p++, i++) {
-		port.iobase		= p->iobase;
-		port.membase		= p->membase;
-		port.irq		= p->irq;
-		port.irqflags		= p->irqflags;
-		port.uartclk		= p->uartclk;
-		port.regshift		= p->regshift;
-		port.iotype		= p->iotype;
-		port.flags		= p->flags;
-		port.mapbase		= p->mapbase;
-		port.hub6		= p->hub6;
-		port.private_data	= p->private_data;
-		port.type		= p->type;
-		port.serial_in		= p->serial_in;
-		port.serial_out		= p->serial_out;
-		port.handle_irq		= p->handle_irq;
-		port.handle_break	= p->handle_break;
-		port.set_termios	= p->set_termios;
-		port.pm			= p->pm;
-		port.dev		= &dev->dev;
-		port.irqflags		|= irqflag;
-		ret = serial8250_register_port(&port);
+		uart.port.iobase	= p->iobase;
+		uart.port.membase	= p->membase;
+		uart.port.irq		= p->irq;
+		uart.port.irqflags	= p->irqflags;
+		uart.port.uartclk	= p->uartclk;
+		uart.port.regshift	= p->regshift;
+		uart.port.iotype	= p->iotype;
+		uart.port.flags		= p->flags;
+		uart.port.mapbase	= p->mapbase;
+		uart.port.hub6		= p->hub6;
+		uart.port.private_data	= p->private_data;
+		uart.port.type		= p->type;
+		uart.port.serial_in	= p->serial_in;
+		uart.port.serial_out	= p->serial_out;
+		uart.port.handle_irq	= p->handle_irq;
+		uart.port.handle_break	= p->handle_break;
+		uart.port.set_termios	= p->set_termios;
+		uart.port.pm		= p->pm;
+		uart.port.dev		= &dev->dev;
+		uart.port.irqflags	|= irqflag;
+		ret = serial8250_register_8250_port(&uart);
 		if (ret < 0) {
 			dev_err(&dev->dev, "unable to register port at index %d "
 				"(IO%lx MEM%llx IRQ%d): %d\n", i,
@@ -3081,7 +3097,7 @@ static struct platform_driver serial8250_isa_driver = {
 static struct platform_device *serial8250_isa_devs;
 
 /*
- * serial8250_register_port and serial8250_unregister_port allows for
+ * serial8250_register_8250_port and serial8250_unregister_port allows for
  * 16x50 serial ports to be configured at run-time, to support PCMCIA
  * modems and PCI multiport cards.
  */
@@ -3143,8 +3159,9 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
 	mutex_lock(&serial_mutex);
 
 	uart = serial8250_find_match_or_unused(&up->port);
-	if (uart) {
-		uart_remove_one_port(&serial8250_reg, &uart->port);
+	if (uart && uart->port.type != PORT_8250_CIR) {
+		if (uart->port.dev)
+			uart_remove_one_port(&serial8250_reg, &uart->port);
 
 		uart->port.iobase       = up->port.iobase;
 		uart->port.membase      = up->port.membase;
@@ -3155,6 +3172,7 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
 		uart->port.regshift     = up->port.regshift;
 		uart->port.iotype       = up->port.iotype;
 		uart->port.flags        = up->port.flags | UPF_BOOT_AUTOCONF;
+		uart->bugs		= up->bugs;
 		uart->port.mapbase      = up->port.mapbase;
 		uart->port.private_data = up->port.private_data;
 		if (up->port.dev)
@@ -3198,29 +3216,6 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
 EXPORT_SYMBOL(serial8250_register_8250_port);
 
 /**
- *	serial8250_register_port - register a serial port
- *	@port: serial port template
- *
- *	Configure the serial port specified by the request. If the
- *	port exists and is in use, it is hung up and unregistered
- *	first.
- *
- *	The port is then probed and if necessary the IRQ is autodetected
- *	If this fails an error is returned.
- *
- *	On success the port is ready to use and the line number is returned.
- */
-int serial8250_register_port(struct uart_port *port)
-{
-	struct uart_8250_port up;
-
-	memset(&up, 0, sizeof(up));
-	memcpy(&up.port, port, sizeof(*port));
-	return serial8250_register_8250_port(&up);
-}
-EXPORT_SYMBOL(serial8250_register_port);
-
-/**
  *	serial8250_unregister_port - remove a 16x50 serial port at runtime
  *	@line: serial line number
  *
@@ -3250,8 +3245,7 @@ static int __init serial8250_init(void)
 {
 	int ret;
 
-	if (nr_uarts > UART_NR)
-		nr_uarts = UART_NR;
+	serial8250_isa_init_ports();
 
 	printk(KERN_INFO "Serial: 8250/16550 driver, "
 		"%d ports, IRQ sharing %sabled\n", nr_uarts,
@@ -3266,11 +3260,15 @@ static int __init serial8250_init(void)
 	if (ret)
 		goto out;
 
+	ret = serial8250_pnp_init();
+	if (ret)
+		goto unreg_uart_drv;
+
 	serial8250_isa_devs = platform_device_alloc("serial8250",
 						    PLAT8250_DEV_LEGACY);
 	if (!serial8250_isa_devs) {
 		ret = -ENOMEM;
-		goto unreg_uart_drv;
+		goto unreg_pnp;
 	}
 
 	ret = platform_device_add(serial8250_isa_devs);
@@ -3286,6 +3284,8 @@ static int __init serial8250_init(void)
 	platform_device_del(serial8250_isa_devs);
 put_dev:
 	platform_device_put(serial8250_isa_devs);
+unreg_pnp:
+	serial8250_pnp_exit();
 unreg_uart_drv:
 #ifdef CONFIG_SPARC
 	sunserial_unregister_minors(&serial8250_reg, UART_NR);
@@ -3310,6 +3310,8 @@ static void __exit serial8250_exit(void)
 	platform_driver_unregister(&serial8250_isa_driver);
 	platform_device_unregister(isa_dev);
 
+	serial8250_pnp_exit();
+
 #ifdef CONFIG_SPARC
 	sunserial_unregister_minors(&serial8250_reg, UART_NR);
 #else
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
index f9719d167c8..5a76f9c8d36 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -13,36 +13,6 @@
 
 #include <linux/serial_8250.h>
 
-struct uart_8250_port {
-	struct uart_port	port;
-	struct timer_list	timer;		/* "no irq" timer */
-	struct list_head	list;		/* ports on this IRQ */
-	unsigned short		capabilities;	/* port capabilities */
-	unsigned short		bugs;		/* port bugs */
-	unsigned int		tx_loadsz;	/* transmit fifo load size */
-	unsigned char		acr;
-	unsigned char		ier;
-	unsigned char		lcr;
-	unsigned char		mcr;
-	unsigned char		mcr_mask;	/* mask of user bits */
-	unsigned char		mcr_force;	/* mask of forced bits */
-	unsigned char		cur_iotype;	/* Running I/O type */
-
-	/*
-	 * Some bits in registers are cleared on a read, so they must
-	 * be saved whenever the register is read but the bits will not
-	 * be immediately processed.
-	 */
-#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
-	unsigned char		lsr_saved_flags;
-#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
-	unsigned char		msr_saved_flags;
-
-	/* 8250 specific callbacks */
-	int			(*dl_read)(struct uart_8250_port *);
-	void			(*dl_write)(struct uart_8250_port *, int);
-};
-
 struct old_serial_port {
 	unsigned int uart;
 	unsigned int baud_base;
@@ -56,9 +26,6 @@ struct old_serial_port {
 	unsigned long irqflags;
 };
 
-/*
- * This replaces serial_uart_config in include/linux/serial.h
- */
 struct serial8250_config {
 	const char	*name;
 	unsigned short	fifo_size;
@@ -78,6 +45,7 @@ struct serial8250_config {
 #define UART_BUG_TXEN	(1 << 1)	/* UART has buggy TX IIR status */
 #define UART_BUG_NOMSR	(1 << 2)	/* UART has buggy MSR status bits (Au1x00) */
 #define UART_BUG_THRE	(1 << 3)	/* UART has buggy THRE reassertion */
+#define UART_BUG_PARITY	(1 << 4)	/* UART mishandles parity if FIFO enabled */
 
 #define PROBE_RSA	(1 << 0)
 #define PROBE_ANY	(~0)
@@ -129,3 +97,12 @@ static inline void serial_dl_write(struct uart_8250_port *up, int value)
 #else
 #define ALPHA_KLUDGE_MCR 0
 #endif
+
+#ifdef CONFIG_SERIAL_8250_PNP
+int serial8250_pnp_init(void);
+void serial8250_pnp_exit(void);
+#else
+static inline int serial8250_pnp_init(void) { return 0; }
+static inline void serial8250_pnp_exit(void) { }
+#endif
+
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/8250/8250_acorn.c
index b0ce8c56f1a..857498312a9 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -43,7 +43,7 @@ serial_card_probe(struct expansion_card *ec, const struct ecard_id *id)
 {
 	struct serial_card_info *info;
 	struct serial_card_type *type = id->data;
-	struct uart_port port;
+	struct uart_8250_port uart;
 	unsigned long bus_addr;
 	unsigned int i;
 
@@ -62,19 +62,19 @@ serial_card_probe(struct expansion_card *ec, const struct ecard_id *id)
 
 	ecard_set_drvdata(ec, info);
 
-	memset(&port, 0, sizeof(struct uart_port));
-	port.irq	= ec->irq;
-	port.flags	= UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
-	port.uartclk	= type->uartclk;
-	port.iotype	= UPIO_MEM;
-	port.regshift	= 2;
-	port.dev	= &ec->dev;
+	memset(&uart, 0, sizeof(struct uart_8250_port));
+	uart.port.irq	= ec->irq;
+	uart.port.flags	= UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	uart.port.uartclk	= type->uartclk;
+	uart.port.iotype	= UPIO_MEM;
+	uart.port.regshift	= 2;
+	uart.port.dev	= &ec->dev;
 
 	for (i = 0; i < info->num_ports; i ++) {
-		port.membase = info->vaddr + type->offset[i];
-		port.mapbase = bus_addr + type->offset[i];
+		uart.port.membase = info->vaddr + type->offset[i];
+		uart.port.mapbase = bus_addr + type->offset[i];
 
-		info->ports[i] = serial8250_register_port(&port);
+		info->ports[i] = serial8250_register_8250_port(&uart);
 	}
 
 	return 0;
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index f574eef3075..c3b2ec0c8c0 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -89,7 +89,7 @@ static int dw8250_handle_irq(struct uart_port *p)
 
 static int __devinit dw8250_probe(struct platform_device *pdev)
 {
-	struct uart_port port = {};
+	struct uart_8250_port uart = {};
 	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	struct device_node *np = pdev->dev.of_node;
@@ -104,28 +104,28 @@ static int __devinit dw8250_probe(struct platform_device *pdev)
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
-	port.private_data = data;
-
-	spin_lock_init(&port.lock);
-	port.mapbase = regs->start;
-	port.irq = irq->start;
-	port.handle_irq = dw8250_handle_irq;
-	port.type = PORT_8250;
-	port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP |
+	uart.port.private_data = data;
+
+	spin_lock_init(&uart.port.lock);
+	uart.port.mapbase = regs->start;
+	uart.port.irq = irq->start;
+	uart.port.handle_irq = dw8250_handle_irq;
+	uart.port.type = PORT_8250;
+	uart.port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP |
 		UPF_FIXED_PORT | UPF_FIXED_TYPE;
-	port.dev = &pdev->dev;
+	uart.port.dev = &pdev->dev;
 
-	port.iotype = UPIO_MEM;
-	port.serial_in = dw8250_serial_in;
-	port.serial_out = dw8250_serial_out;
+	uart.port.iotype = UPIO_MEM;
+	uart.port.serial_in = dw8250_serial_in;
+	uart.port.serial_out = dw8250_serial_out;
 	if (!of_property_read_u32(np, "reg-io-width", &val)) {
 		switch (val) {
 		case 1:
 			break;
 		case 4:
-			port.iotype = UPIO_MEM32;
-			port.serial_in = dw8250_serial_in32;
-			port.serial_out = dw8250_serial_out32;
+			uart.port.iotype = UPIO_MEM32;
+			uart.port.serial_in = dw8250_serial_in32;
+			uart.port.serial_out = dw8250_serial_out32;
 			break;
 		default:
 			dev_err(&pdev->dev, "unsupported reg-io-width (%u)\n",
@@ -135,15 +135,15 @@ static int __devinit dw8250_probe(struct platform_device *pdev)
 	}
 
 	if (!of_property_read_u32(np, "reg-shift", &val))
-		port.regshift = val;
+		uart.port.regshift = val;
 
 	if (of_property_read_u32(np, "clock-frequency", &val)) {
 		dev_err(&pdev->dev, "no clock-frequency property set\n");
 		return -EINVAL;
 	}
-	port.uartclk = val;
+	uart.port.uartclk = val;
 
-	data->line = serial8250_register_port(&port);
+	data->line = serial8250_register_8250_port(&uart);
 	if (data->line < 0)
 		return data->line;
 
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index d8c0ffbfa6e..097dff9c08a 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -26,7 +26,7 @@
 
 static int __init serial_init_chip(struct parisc_device *dev)
 {
-	struct uart_port port;
+	struct uart_8250_port uart;
 	unsigned long address;
 	int err;
 
@@ -48,21 +48,21 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	if (dev->id.sversion != 0x8d)
 		address += 0x800;
 
-	memset(&port, 0, sizeof(port));
-	port.iotype	= UPIO_MEM;
+	memset(&uart, 0, sizeof(uart));
+	uart.port.iotype	= UPIO_MEM;
 	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
-	port.uartclk	= 7272727;
-	port.mapbase	= address;
-	port.membase	= ioremap_nocache(address, 16);
-	port.irq	= dev->irq;
-	port.flags	= UPF_BOOT_AUTOCONF;
-	port.dev	= &dev->dev;
-
-	err = serial8250_register_port(&port);
+	uart.port.uartclk	= 7272727;
+	uart.port.mapbase	= address;
+	uart.port.membase	= ioremap_nocache(address, 16);
+	uart.port.irq	= dev->irq;
+	uart.port.flags	= UPF_BOOT_AUTOCONF;
+	uart.port.dev	= &dev->dev;
+
+	err = serial8250_register_8250_port(&uart);
 	if (err < 0) {
 		printk(KERN_WARNING
-			"serial8250_register_port returned error %d\n", err);
-		iounmap(port.membase);
+			"serial8250_register_8250_port returned error %d\n", err);
+		iounmap(uart.port.membase);
 		return err;
 	}
 
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/8250/8250_hp300.c
index c13438c9301..8f1dd2cc00a 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -171,7 +171,7 @@ static int __devinit hpdca_init_one(struct dio_dev *d,
 		return 0;
 	}
 #endif
-	memset(&port, 0, sizeof(struct uart_port));
+	memset(&uart, 0, sizeof(uart));
 
 	/* Memory mapped I/O */
 	port.iotype = UPIO_MEM;
@@ -182,7 +182,7 @@ static int __devinit hpdca_init_one(struct dio_dev *d,
 	port.membase = (char *)(port.mapbase + DIO_VIRADDRBASE);
 	port.regshift = 1;
 	port.dev = &d->dev;
-	line = serial8250_register_port(&port);
+	line = serial8250_register_8250_port(&uart);
 
 	if (line < 0) {
 		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
@@ -210,7 +210,7 @@ static int __init hp300_8250_init(void)
 #ifdef CONFIG_HPAPCI
 	int line;
 	unsigned long base;
-	struct uart_port uport;
+	struct uart_8250_port uart;
 	struct hp300_port *port;
 	int i;
 #endif
@@ -248,26 +248,26 @@ static int __init hp300_8250_init(void)
 		if (!port)
 			return -ENOMEM;
 
-		memset(&uport, 0, sizeof(struct uart_port));
+		memset(&uart, 0, sizeof(uart));
 
 		base = (FRODO_BASE + FRODO_APCI_OFFSET(i));
 
 		/* Memory mapped I/O */
-		uport.iotype = UPIO_MEM;
-		uport.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ \
+		uart.port.iotype = UPIO_MEM;
+		uart.port.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ \
 			      | UPF_BOOT_AUTOCONF;
 		/* XXX - no interrupt support yet */
-		uport.irq = 0;
-		uport.uartclk = HPAPCI_BAUD_BASE * 16;
-		uport.mapbase = base;
-		uport.membase = (char *)(base + DIO_VIRADDRBASE);
-		uport.regshift = 2;
+		uart.port.irq = 0;
+		uart.port.uartclk = HPAPCI_BAUD_BASE * 16;
+		uart.port.mapbase = base;
+		uart.port.membase = (char *)(base + DIO_VIRADDRBASE);
+		uart.port.regshift = 2;
 
-		line = serial8250_register_port(&uport);
+		line = serial8250_register_8250_port(&uart);
 
 		if (line < 0) {
 			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
-			       " %d irq %d failed\n", i, uport.irq);
+			       " %d irq %d failed\n", i, uart.port.irq);
 			kfree(port);
 			continue;
 		}
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 28e7c7cce89..17b7d26abf4 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -44,7 +44,7 @@ struct pci_serial_quirk {
 	int	(*init)(struct pci_dev *dev);
 	int	(*setup)(struct serial_private *,
 			 const struct pciserial_board *,
-			 struct uart_port *, int);
+			 struct uart_8250_port *, int);
 	void	(*exit)(struct pci_dev *dev);
 };
 
@@ -59,7 +59,7 @@ struct serial_private {
 };
 
 static int pci_default_setup(struct serial_private*,
-	  const struct pciserial_board*, struct uart_port*, int);
+	  const struct pciserial_board*, struct uart_8250_port *, int);
 
 static void moan_device(const char *str, struct pci_dev *dev)
 {
@@ -74,7 +74,7 @@ static void moan_device(const char *str, struct pci_dev *dev)
 }
 
 static int
-setup_port(struct serial_private *priv, struct uart_port *port,
+setup_port(struct serial_private *priv, struct uart_8250_port *port,
 	   int bar, int offset, int regshift)
 {
 	struct pci_dev *dev = priv->dev;
@@ -93,17 +93,17 @@ setup_port(struct serial_private *priv, struct uart_port *port,
 		if (!priv->remapped_bar[bar])
 			return -ENOMEM;
 
-		port->iotype = UPIO_MEM;
-		port->iobase = 0;
-		port->mapbase = base + offset;
-		port->membase = priv->remapped_bar[bar] + offset;
-		port->regshift = regshift;
+		port->port.iotype = UPIO_MEM;
+		port->port.iobase = 0;
+		port->port.mapbase = base + offset;
+		port->port.membase = priv->remapped_bar[bar] + offset;
+		port->port.regshift = regshift;
 	} else {
-		port->iotype = UPIO_PORT;
-		port->iobase = base + offset;
-		port->mapbase = 0;
-		port->membase = NULL;
-		port->regshift = 0;
+		port->port.iotype = UPIO_PORT;
+		port->port.iobase = base + offset;
+		port->port.mapbase = 0;
+		port->port.membase = NULL;
+		port->port.regshift = 0;
 	}
 	return 0;
 }
@@ -113,7 +113,7 @@ setup_port(struct serial_private *priv, struct uart_port *port,
  */
 static int addidata_apci7800_setup(struct serial_private *priv,
 				const struct pciserial_board *board,
-				struct uart_port *port, int idx)
+				struct uart_8250_port *port, int idx)
 {
 	unsigned int bar = 0, offset = board->first_offset;
 	bar = FL_GET_BASE(board->flags);
@@ -140,7 +140,7 @@ static int addidata_apci7800_setup(struct serial_private *priv,
  */
 static int
 afavlab_setup(struct serial_private *priv, const struct pciserial_board *board,
-	      struct uart_port *port, int idx)
+	      struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset;
 
@@ -195,7 +195,7 @@ static int pci_hp_diva_init(struct pci_dev *dev)
 static int
 pci_hp_diva_setup(struct serial_private *priv,
 		const struct pciserial_board *board,
-		struct uart_port *port, int idx)
+		struct uart_8250_port *port, int idx)
 {
 	unsigned int offset = board->first_offset;
 	unsigned int bar = FL_GET_BASE(board->flags);
@@ -370,7 +370,7 @@ static void __devexit pci_ni8430_exit(struct pci_dev *dev)
 /* SBS Technologies Inc. PMC-OCTPRO and P-OCTAL cards */
 static int
 sbs_setup(struct serial_private *priv, const struct pciserial_board *board,
-		struct uart_port *port, int idx)
+		struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset;
 
@@ -525,7 +525,7 @@ static int pci_siig_init(struct pci_dev *dev)
 
 static int pci_siig_setup(struct serial_private *priv,
 			  const struct pciserial_board *board,
-			  struct uart_port *port, int idx)
+			  struct uart_8250_port *port, int idx)
 {
 	unsigned int bar = FL_GET_BASE(board->flags) + idx, offset = 0;
 
@@ -619,7 +619,7 @@ static int pci_timedia_init(struct pci_dev *dev)
 static int
 pci_timedia_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
 	unsigned int bar = 0, offset = board->first_offset;
 
@@ -653,7 +653,7 @@ pci_timedia_setup(struct serial_private *priv,
 static int
 titan_400l_800l_setup(struct serial_private *priv,
 		      const struct pciserial_board *board,
-		      struct uart_port *port, int idx)
+		      struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset;
 
@@ -754,7 +754,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 static int
 pci_ni8430_setup(struct serial_private *priv,
 		 const struct pciserial_board *board,
-		 struct uart_port *port, int idx)
+		 struct uart_8250_port *port, int idx)
 {
 	void __iomem *p;
 	unsigned long base, len;
@@ -781,7 +781,7 @@ pci_ni8430_setup(struct serial_private *priv,
 
 static int pci_netmos_9900_setup(struct serial_private *priv,
 				const struct pciserial_board *board,
-				struct uart_port *port, int idx)
+				struct uart_8250_port *port, int idx)
 {
 	unsigned int bar;
 
@@ -1032,10 +1032,17 @@ static int pci_oxsemi_tornado_init(struct pci_dev *dev)
 	return number_uarts;
 }
 
-static int
-pci_default_setup(struct serial_private *priv,
+static int pci_asix_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	port->bugs |= UART_BUG_PARITY;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int pci_default_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset, maxnr;
 
@@ -1057,15 +1064,15 @@ pci_default_setup(struct serial_private *priv,
 static int
 ce4100_serial_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
 	int ret;
 
 	ret = setup_port(priv, port, 0, 0, board->reg_shift);
-	port->iotype = UPIO_MEM32;
-	port->type = PORT_XSCALE;
-	port->flags = (port->flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
-	port->regshift = 2;
+	port->port.iotype = UPIO_MEM32;
+	port->port.type = PORT_XSCALE;
+	port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+	port->port.regshift = 2;
 
 	return ret;
 }
@@ -1073,16 +1080,16 @@ ce4100_serial_setup(struct serial_private *priv,
 static int
 pci_omegapci_setup(struct serial_private *priv,
 		      const struct pciserial_board *board,
-		      struct uart_port *port, int idx)
+		      struct uart_8250_port *port, int idx)
 {
 	return setup_port(priv, port, 2, idx * 8, 0);
 }
 
 static int skip_tx_en_setup(struct serial_private *priv,
 			const struct pciserial_board *board,
-			struct uart_port *port, int idx)
+			struct uart_8250_port *port, int idx)
 {
-	port->flags |= UPF_NO_TXEN_TEST;
+	port->port.flags |= UPF_NO_TXEN_TEST;
 	printk(KERN_DEBUG "serial8250: skipping TxEn test for device "
 			  "[%04x:%04x] subsystem [%04x:%04x]\n",
 			  priv->dev->vendor,
@@ -1131,11 +1138,11 @@ static unsigned int kt_serial_in(struct uart_port *p, int offset)
 
 static int kt_serial_setup(struct serial_private *priv,
 			   const struct pciserial_board *board,
-			   struct uart_port *port, int idx)
+			   struct uart_8250_port *port, int idx)
 {
-	port->flags |= UPF_BUG_THRE;
-	port->serial_in = kt_serial_in;
-	port->handle_break = kt_handle_break;
+	port->port.flags |= UPF_BUG_THRE;
+	port->port.serial_in = kt_serial_in;
+	port->port.handle_break = kt_handle_break;
 	return skip_tx_en_setup(priv, board, port, idx);
 }
 
@@ -1151,9 +1158,19 @@ static int pci_eg20t_init(struct pci_dev *dev)
 static int
 pci_xr17c154_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
-	port->flags |= UPF_EXAR_EFR;
+	port->port.flags |= UPF_EXAR_EFR;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int
+pci_wch_ch353_setup(struct serial_private *priv,
+                    const struct pciserial_board *board,
+                    struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_FIXED_TYPE;
+	port->port.type = PORT_16550A;
 	return pci_default_setup(priv, board, port, idx);
 }
 
@@ -1164,6 +1181,8 @@ pci_xr17c154_setup(struct serial_private *priv,
 #define PCI_SUBDEVICE_ID_OCTPRO422	0x0208
 #define PCI_SUBDEVICE_ID_POCTAL232	0x0308
 #define PCI_SUBDEVICE_ID_POCTAL422	0x0408
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_00	0x2500
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_30	0x2530
 #define PCI_VENDOR_ID_ADVANTECH		0x13fe
 #define PCI_DEVICE_ID_INTEL_CE4100_UART 0x2e66
 #define PCI_DEVICE_ID_ADVANTECH_PCI3620	0x3620
@@ -1187,6 +1206,13 @@ pci_xr17c154_setup(struct serial_private *priv,
 #define PCIE_DEVICE_ID_NEO_2_OX_IBM	0x00F6
 #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA	0xc001
 #define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d
+#define PCI_VENDOR_ID_WCH		0x4348
+#define PCI_DEVICE_ID_WCH_CH353_4S	0x3453
+#define PCI_DEVICE_ID_WCH_CH353_2S1PF	0x5046
+#define PCI_DEVICE_ID_WCH_CH353_2S1P	0x7053
+#define PCI_VENDOR_ID_AGESTAR		0x5372
+#define PCI_DEVICE_ID_AGESTAR_9375	0x6872
+#define PCI_VENDOR_ID_ASIX		0x9710
 
 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584	0x1584
@@ -1726,7 +1752,41 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
 		.setup		= pci_omegapci_setup,
-	 },
+	},
+	/* WCH CH353 2S1P card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_2S1P,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 4S card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_4S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 2S1PF card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_2S1PF,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/*
+	 * ASIX devices with FIFO bug
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_ASIX,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_asix_setup,
+	},
 	/*
 	 * Default "match everything" terminator entry
 	 */
@@ -1887,7 +1947,6 @@ enum pci_board_num_t {
 	pbn_panacom,
 	pbn_panacom2,
 	pbn_panacom4,
-	pbn_exsys_4055,
 	pbn_plx_romulus,
 	pbn_oxsemi,
 	pbn_oxsemi_1_4000000,
@@ -2393,13 +2452,6 @@ static struct pciserial_board pci_boards[] __devinitdata = {
 		.reg_shift	= 7,
 	},
 
-	[pbn_exsys_4055] = {
-		.flags		= FL_BASE2,
-		.num_ports	= 4,
-		.base_baud	= 115200,
-		.uart_offset	= 8,
-	},
-
 	/* I think this entry is broken - the first_offset looks wrong --rmk */
 	[pbn_plx_romulus] = {
 		.flags		= FL_BASE2,
@@ -2624,10 +2676,14 @@ static struct pciserial_board pci_boards[] __devinitdata = {
 	},
 };
 
-static const struct pci_device_id softmodem_blacklist[] = {
+static const struct pci_device_id blacklist[] = {
+	/* softmodems */
 	{ PCI_VDEVICE(AL, 0x5457), }, /* ALi Corporation M5457 AC'97 Modem */
 	{ PCI_VDEVICE(MOTOROLA, 0x3052), }, /* Motorola Si3052-based modem */
 	{ PCI_DEVICE(0x1543, 0x3052), }, /* Si3052-based modem, default IDs */
+
+	/* multi-io cards handled by parport_serial */
+	{ PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */
 };
 
 /*
@@ -2638,7 +2694,7 @@ static const struct pci_device_id softmodem_blacklist[] = {
 static int __devinit
 serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
 {
-	const struct pci_device_id *blacklist;
+	const struct pci_device_id *bldev;
 	int num_iomem, num_port, first_port = -1, i;
 
 	/*
@@ -2655,13 +2711,13 @@ serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
 
 	/*
 	 * Do not access blacklisted devices that are known not to
-	 * feature serial ports.
+	 * feature serial ports or are handled by other modules.
 	 */
-	for (blacklist = softmodem_blacklist;
-	     blacklist < softmodem_blacklist + ARRAY_SIZE(softmodem_blacklist);
-	     blacklist++) {
-		if (dev->vendor == blacklist->vendor &&
-		    dev->device == blacklist->device)
+	for (bldev = blacklist;
+	     bldev < blacklist + ARRAY_SIZE(blacklist);
+	     bldev++) {
+		if (dev->vendor == bldev->vendor &&
+		    dev->device == bldev->device)
 			return -ENODEV;
 	}
 
@@ -2728,7 +2784,7 @@ serial_pci_matches(const struct pciserial_board *board,
 struct serial_private *
 pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 {
-	struct uart_port serial_port;
+	struct uart_8250_port uart;
 	struct serial_private *priv;
 	struct pci_serial_quirk *quirk;
 	int rc, nr_ports, i;
@@ -2768,22 +2824,22 @@ pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 	priv->dev = dev;
 	priv->quirk = quirk;
 
-	memset(&serial_port, 0, sizeof(struct uart_port));
-	serial_port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
-	serial_port.uartclk = board->base_baud * 16;
-	serial_port.irq = get_pci_irq(dev, board);
-	serial_port.dev = &dev->dev;
+	memset(&uart, 0, sizeof(uart));
+	uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	uart.port.uartclk = board->base_baud * 16;
+	uart.port.irq = get_pci_irq(dev, board);
+	uart.port.dev = &dev->dev;
 
 	for (i = 0; i < nr_ports; i++) {
-		if (quirk->setup(priv, board, &serial_port, i))
+		if (quirk->setup(priv, board, &uart, i))
 			break;
 
 #ifdef SERIAL_DEBUG_PCI
 		printk(KERN_DEBUG "Setup PCI port: port %lx, irq %d, type %d\n",
-		       serial_port.iobase, serial_port.irq, serial_port.iotype);
+		       uart.port.iobase, uart.port.irq, uart.port.iotype);
 #endif
 
-		priv->line[i] = serial8250_register_port(&serial_port);
+		priv->line[i] = serial8250_register_8250_port(&uart);
 		if (priv->line[i] < 0) {
 			printk(KERN_WARNING "Couldn't register serial port %s: %d\n", pci_name(dev), priv->line[i]);
 			break;
@@ -3193,7 +3249,7 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
 		PCI_SUBVENDOR_ID_EXSYS,
 		PCI_SUBDEVICE_ID_EXSYS_4055, 0, 0,
-		pbn_exsys_4055 },
+		pbn_b2_4_115200 },
 	/*
 	 * Megawolf Romulus PCI Serial Card, from Mike Hudson
 	 * (Exoray@isys.ca)
@@ -3232,8 +3288,11 @@ static struct pci_device_id serial_pci_tbl[] = {
 		 * For now just used the hex ID 0x950a.
 		 */
 	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
-		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_SERIAL, 0, 0,
-		pbn_b0_2_115200 },
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_00,
+		0, 0, pbn_b0_2_115200 },
+	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_30,
+		0, 0, pbn_b0_2_115200 },
 	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_2_1130000 },
@@ -4179,6 +4238,25 @@ static struct pci_device_id serial_pci_tbl[] = {
 		pbn_omegapci },
 
 	/*
+	 * AgeStar as-prs2-009
+	 */
+	{	PCI_VENDOR_ID_AGESTAR, PCI_DEVICE_ID_AGESTAR_9375,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	/*
+	 * WCH CH353 series devices: The 2S1P is handled by parport_serial
+	 * so not listed here.
+	 */
+	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_4S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_4_115200 },
+
+	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_2S1PF,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	/*
 	 * These entries match devices with class COMMUNICATION_SERIAL,
 	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
 	 */
@@ -4236,7 +4314,7 @@ static void serial8250_io_resume(struct pci_dev *dev)
 		pciserial_resume_ports(priv);
 }
 
-static struct pci_error_handlers serial8250_err_handler = {
+static const struct pci_error_handlers serial8250_err_handler = {
 	.error_detected = serial8250_io_error_detected,
 	.slot_reset = serial8250_io_slot_reset,
 	.resume = serial8250_io_resume,
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index a2f236510ff..f8ee25001dd 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -1,5 +1,5 @@
 /*
- *  Probe module for 8250/16550-type ISAPNP serial ports.
+ *  Probe for 8250/16550-type ISAPNP serial ports.
  *
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *
@@ -25,7 +25,7 @@
 #include "8250.h"
 
 #define UNKNOWN_DEV 0x3000
-
+#define CIR_PORT	0x0800
 
 static const struct pnp_device_id pnp_dev_table[] = {
 	/* Archtek America Corp. */
@@ -362,6 +362,9 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 	/* More unknown PnP modems */
 	{	"PNPDXXX",		UNKNOWN_DEV	},
+	/* Winbond CIR port, should not be probed. We should keep track
+	   of it to prevent the legacy serial driver from probing it */
+	{	"WEC1022",		CIR_PORT	},
 	{	"",			0	}
 };
 
@@ -409,7 +412,7 @@ static int __devinit check_resources(struct pnp_dev *dev)
  * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
  * table.
  */
-static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
+static int __devinit serial_pnp_guess_board(struct pnp_dev *dev)
 {
 	if (!(check_name(pnp_dev_name(dev)) ||
 		(dev->card && check_name(dev->card->name))))
@@ -424,42 +427,49 @@ static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
 static int __devinit
 serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 {
-	struct uart_port port;
+	struct uart_8250_port uart;
 	int ret, line, flags = dev_id->driver_data;
 
 	if (flags & UNKNOWN_DEV) {
-		ret = serial_pnp_guess_board(dev, &flags);
+		ret = serial_pnp_guess_board(dev);
 		if (ret < 0)
 			return ret;
 	}
 
-	memset(&port, 0, sizeof(struct uart_port));
+	memset(&uart, 0, sizeof(uart));
 	if (pnp_irq_valid(dev, 0))
-		port.irq = pnp_irq(dev, 0);
-	if (pnp_port_valid(dev, 0)) {
-		port.iobase = pnp_port_start(dev, 0);
-		port.iotype = UPIO_PORT;
+		uart.port.irq = pnp_irq(dev, 0);
+	if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
+		uart.port.iobase = pnp_port_start(dev, 2);
+		uart.port.iotype = UPIO_PORT;
+	} else if (pnp_port_valid(dev, 0)) {
+		uart.port.iobase = pnp_port_start(dev, 0);
+		uart.port.iotype = UPIO_PORT;
 	} else if (pnp_mem_valid(dev, 0)) {
-		port.mapbase = pnp_mem_start(dev, 0);
-		port.iotype = UPIO_MEM;
-		port.flags = UPF_IOREMAP;
+		uart.port.mapbase = pnp_mem_start(dev, 0);
+		uart.port.iotype = UPIO_MEM;
+		uart.port.flags = UPF_IOREMAP;
 	} else
 		return -ENODEV;
 
 #ifdef SERIAL_DEBUG_PNP
 	printk(KERN_DEBUG
 		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
-		       port.iobase, port.mapbase, port.irq, port.iotype);
+		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port.iotype);
 #endif
+	if (flags & CIR_PORT) {
+		uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
+		uart.port.type = PORT_8250_CIR;
+	}
 
-	port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+	uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
 	if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
-		port.flags |= UPF_SHARE_IRQ;
-	port.uartclk = 1843200;
-	port.dev = &dev->dev;
+		uart.port.flags |= UPF_SHARE_IRQ;
+	uart.port.uartclk = 1843200;
+	uart.port.dev = &dev->dev;
 
-	line = serial8250_register_port(&port);
-	if (line < 0)
+	line = serial8250_register_8250_port(&uart);
+	if (line < 0 || (flags & CIR_PORT))
 		return -ENODEV;
 
 	pnp_set_drvdata(dev, (void *)((long)line + 1));
@@ -507,18 +517,13 @@ static struct pnp_driver serial_pnp_driver = {
 	.id_table	= pnp_dev_table,
 };
 
-static int __init serial8250_pnp_init(void)
+int serial8250_pnp_init(void)
 {
 	return pnp_register_driver(&serial_pnp_driver);
 }
 
-static void __exit serial8250_pnp_exit(void)
+void serial8250_pnp_exit(void)
 {
 	pnp_unregister_driver(&serial_pnp_driver);
 }
 
-module_init(serial8250_pnp_init);
-module_exit(serial8250_pnp_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Generic 8250/16x50 PnP serial driver");
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index a27dd0569bd..f3d283f2e3a 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -33,6 +33,14 @@ config SERIAL_8250
 	  Most people will say Y or M here, so that they can use serial mice,
 	  modems and similar devices connecting to the standard serial ports.
 
+config SERIAL_8250_PNP
+	bool "8250/16550 PNP device support" if EXPERT
+	depends on SERIAL_8250 && PNP
+	default y
+	---help---
+	  This builds standard PNP serial support. You may be able to
+	  disable this feature if you only need legacy serial support.
+
 config SERIAL_8250_CONSOLE
 	bool "Console on 8250/16550 and compatible serial port"
 	depends on SERIAL_8250=y
@@ -85,14 +93,6 @@ config SERIAL_8250_PCI
 	  disable this feature if you only need legacy serial support.
 	  Saves about 9K.
 
-config SERIAL_8250_PNP
-	tristate "8250/16550 PNP device support" if EXPERT
-	depends on SERIAL_8250 && PNP
-	default SERIAL_8250
-	help
-	  This builds standard PNP serial support. You may be able to
-	  disable this feature if you only need legacy serial support.
-
 config SERIAL_8250_HP300
 	tristate
 	depends on SERIAL_8250 && HP300
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index d7533c7d2c1..108fe7fe13e 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -2,8 +2,9 @@
 # Makefile for the 8250 serial device drivers.
 #
 
-obj-$(CONFIG_SERIAL_8250)		+= 8250.o
-obj-$(CONFIG_SERIAL_8250_PNP)		+= 8250_pnp.o
+obj-$(CONFIG_SERIAL_8250)		+= 8250_core.o
+8250_core-y				:= 8250.o
+8250_core-$(CONFIG_SERIAL_8250_PNP)	+= 8250_pnp.o
 obj-$(CONFIG_SERIAL_8250_GSC)		+= 8250_gsc.o
 obj-$(CONFIG_SERIAL_8250_PCI)		+= 8250_pci.o
 obj-$(CONFIG_SERIAL_8250_HP300)		+= 8250_hp300.o
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8250/serial_cs.c
index 29b695d041e..b7d48b34639 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -73,7 +73,7 @@ struct serial_quirk {
 	unsigned int prodid;
 	int multi;		/* 1 = multifunction, > 1 = # ports */
 	void (*config)(struct pcmcia_device *);
-	void (*setup)(struct pcmcia_device *, struct uart_port *);
+	void (*setup)(struct pcmcia_device *, struct uart_8250_port *);
 	void (*wakeup)(struct pcmcia_device *);
 	int (*post)(struct pcmcia_device *);
 };
@@ -105,9 +105,9 @@ struct serial_cfg_mem {
  * Elan VPU16551 UART with 14.7456MHz oscillator
  * manfid 0x015D, 0x4C45
  */
-static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port)
+static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_8250_port *uart)
 {
-	port->uartclk = 14745600;
+	uart->port.uartclk = 14745600;
 }
 
 static int quirk_post_ibm(struct pcmcia_device *link)
@@ -343,25 +343,25 @@ static void serial_detach(struct pcmcia_device *link)
 static int setup_serial(struct pcmcia_device *handle, struct serial_info * info,
 			unsigned int iobase, int irq)
 {
-	struct uart_port port;
+	struct uart_8250_port uart;
 	int line;
 
-	memset(&port, 0, sizeof (struct uart_port));
-	port.iobase = iobase;
-	port.irq = irq;
-	port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
-	port.uartclk = 1843200;
-	port.dev = &handle->dev;
+	memset(&uart, 0, sizeof(uart));
+	uart.port.iobase = iobase;
+	uart.port.irq = irq;
+	uart.port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
+	uart.port.uartclk = 1843200;
+	uart.port.dev = &handle->dev;
 	if (buggy_uart)
-		port.flags |= UPF_BUGGY_UART;
+		uart.port.flags |= UPF_BUGGY_UART;
 
 	if (info->quirk && info->quirk->setup)
-		info->quirk->setup(handle, &port);
+		info->quirk->setup(handle, &uart);
 
-	line = serial8250_register_port(&port);
+	line = serial8250_register_8250_port(&uart);
 	if (line < 0) {
-		printk(KERN_NOTICE "serial_cs: serial8250_register_port() at "
-		       "0x%04lx, irq %d failed\n", (u_long)iobase, irq);
+		pr_err("serial_cs: serial8250_register_8250_port() at 0x%04lx, irq %d failed\n",
+							(unsigned long)iobase, irq);
 		return -EINVAL;
 	}
 
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 070b442c1f8..233fbaaf255 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -141,6 +141,25 @@ config SERIAL_ATMEL_TTYAT
 
 	  Say Y if you have an external 8250/16C550 UART.  If unsure, say N.
 
+config SERIAL_KGDB_NMI
+	bool "Serial console over KGDB NMI debugger port"
+	depends on KGDB_SERIAL_CONSOLE
+	help
+	  This special driver allows you to temporary use NMI debugger port
+	  as a normal console (assuming that the port is attached to KGDB).
+
+	  Unlike KDB's disable_nmi command, with this driver you are always
+	  able to go back to the debugger using KGDB escape sequence ($3#33).
+	  This is because this console driver processes the input in NMI
+	  context, and thus is able to intercept the magic sequence.
+
+	  Note that since the console interprets input and uses polling
+	  communication methods, for things like PPP you still must fully
+	  detach debugger port from the KGDB NMI (i.e. disable_nmi), and
+	  use raw console.
+
+	  If unsure, say N.
+
 config SERIAL_KS8695
 	bool "Micrel KS8695 (Centaur) serial port support"
 	depends on ARCH_KS8695
@@ -160,10 +179,12 @@ config SERIAL_KS8695_CONSOLE
 
 config SERIAL_CLPS711X
 	tristate "CLPS711X serial port support"
-	depends on ARM && ARCH_CLPS711X
+	depends on ARCH_CLPS711X
 	select SERIAL_CORE
+	default y
 	help
-	  ::: To be written :::
+	  This enables the driver for the on-chip UARTs of the Cirrus
+	  Logic EP711x/EP721x/EP731x processors.
 
 config SERIAL_CLPS711X_CONSOLE
 	bool "Support for console on CLPS711X serial port"
@@ -173,9 +194,7 @@ config SERIAL_CLPS711X_CONSOLE
 	  Even if you say Y here, the currently visible virtual console
 	  (/dev/tty0) will still be used as the system console by default, but
 	  you can alter that using a kernel command line option such as
-	  "console=ttyCL1". (Try "man bootparam" or see the documentation of
-	  your boot loader (lilo or loadlin) about how to pass options to the
-	  kernel at boot time.)
+	  "console=ttyCL1".
 
 config SERIAL_SAMSUNG
 	tristate "Samsung SoC serial support"
@@ -257,12 +276,19 @@ config SERIAL_MAX3100
 	help
 	  MAX3100 chip support
 
-config SERIAL_MAX3107
-	tristate "MAX3107 support"
+config SERIAL_MAX310X
+	bool "MAX310X support"
 	depends on SPI
 	select SERIAL_CORE
+	select REGMAP_SPI if SPI
+	default n
 	help
-	  MAX3107 chip support
+	  This selects support for an advanced UART from Maxim (Dallas).
+	  Supported ICs are MAX3107, MAX3108.
+	  Each IC contains 128 words each of receive and transmit FIFO
+	  that can be controlled through I2C or high-speed SPI.
+
+	  Say Y here if you want to support this ICs.
 
 config SERIAL_DZ
 	bool "DECstation DZ serial driver"
@@ -686,7 +712,7 @@ config SERIAL_SH_SCI_CONSOLE
 
 config SERIAL_SH_SCI_DMA
 	bool "DMA support"
-	depends on SERIAL_SH_SCI && SH_DMAE && EXPERIMENTAL
+	depends on SERIAL_SH_SCI && SH_DMAE
 
 config SERIAL_PNX8XXX
 	bool "Enable PNX8XXX SoCs' UART Support"
@@ -704,6 +730,25 @@ config SERIAL_PNX8XXX_CONSOLE
 	  If you have a MIPS-based Philips SoC such as PNX8550 or PNX8330
 	  and you want to use serial console, say Y. Otherwise, say N.
 
+config SERIAL_HS_LPC32XX
+	tristate "LPC32XX high speed serial port support"
+	depends on ARCH_LPC32XX && OF
+	select SERIAL_CORE
+	help
+	  Support for the LPC32XX high speed serial ports (up to 900kbps).
+	  Those are UARTs completely different from the Standard UARTs on the
+	  LPC32XX SoC.
+	  Choose M or Y here to build this driver.
+
+config SERIAL_HS_LPC32XX_CONSOLE
+	bool "Enable LPC32XX high speed UART serial console"
+	depends on SERIAL_HS_LPC32XX
+	select SERIAL_CORE_CONSOLE
+	help
+	  If you would like to be able to use one of the high speed serial
+	  ports on the LPC32XX as the console, you can do so by answering
+	  Y to this option.
+
 config SERIAL_CORE
 	tristate
 
@@ -1104,6 +1149,24 @@ config SERIAL_SC26XX_CONSOLE
 	help
 	  Support for Console on SC2681/SC2692 serial ports.
 
+config SERIAL_SCCNXP
+	bool "SCCNXP serial port support"
+	depends on !SERIAL_SC26XX
+	select SERIAL_CORE
+	default n
+	help
+	  This selects support for an advanced UART from NXP (Philips).
+	  Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
+	  SC28L202, SCC68681 and SCC68692.
+	  Positioned as a replacement for the driver SC26XX.
+
+config SERIAL_SCCNXP_CONSOLE
+	bool "Console on SCCNXP serial port"
+	depends on SERIAL_SCCNXP
+	select SERIAL_CORE_CONSOLE
+	help
+	  Support for console on SCCNXP serial ports.
+
 config SERIAL_BFIN_SPORT
 	tristate "Blackfin SPORT emulate UART"
 	depends on BLACKFIN
@@ -1260,7 +1323,7 @@ config SERIAL_ALTERA_UART_CONSOLE
 
 config SERIAL_IFX6X60
         tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
-	depends on GPIOLIB && SPI && EXPERIMENTAL
+	depends on GPIOLIB && SPI
 	help
 	  Support for the IFX6x60 modem devices on Intel MID platforms.
 
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index 7257c5d898a..4f694dafa71 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -28,12 +28,13 @@ obj-$(CONFIG_SERIAL_BFIN) += bfin_uart.o
 obj-$(CONFIG_SERIAL_BFIN_SPORT) += bfin_sport_uart.o
 obj-$(CONFIG_SERIAL_SAMSUNG) += samsung.o
 obj-$(CONFIG_SERIAL_MAX3100) += max3100.o
-obj-$(CONFIG_SERIAL_MAX3107) += max3107.o
+obj-$(CONFIG_SERIAL_MAX310X) += max310x.o
 obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
 obj-$(CONFIG_SERIAL_MUX) += mux.o
 obj-$(CONFIG_SERIAL_68328) += 68328serial.o
 obj-$(CONFIG_SERIAL_MCF) += mcf.o
 obj-$(CONFIG_SERIAL_PMACZILOG) += pmac_zilog.o
+obj-$(CONFIG_SERIAL_HS_LPC32XX) += lpc32xx_hs.o
 obj-$(CONFIG_SERIAL_DZ) += dz.o
 obj-$(CONFIG_SERIAL_ZS) += zs.o
 obj-$(CONFIG_SERIAL_SH_SCI) += sh-sci.o
@@ -47,6 +48,7 @@ obj-$(CONFIG_SERIAL_MPSC) += mpsc.o
 obj-$(CONFIG_SERIAL_SB1250_DUART) += sb1250-duart.o
 obj-$(CONFIG_ETRAX_SERIAL) += crisv10.o
 obj-$(CONFIG_SERIAL_SC26XX) += sc26xx.o
+obj-$(CONFIG_SERIAL_SCCNXP) += sccnxp.o
 obj-$(CONFIG_SERIAL_JSM) += jsm/
 obj-$(CONFIG_SERIAL_TXX9) += serial_txx9.o
 obj-$(CONFIG_SERIAL_VR41XX) += vr41xx_siu.o
@@ -59,6 +61,7 @@ obj-$(CONFIG_SERIAL_MSM_HS) += msm_serial_hs.o
 obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
 obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
 obj-$(CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL) += nwpserial.o
+obj-$(CONFIG_SERIAL_KGDB_NMI) += kgdb_nmi.o
 obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
 obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o
 obj-$(CONFIG_SERIAL_ALTERA_UART) += altera_uart.o
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 1f0330915d5..15d80b9fb30 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -591,7 +591,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev)
 	port->ops = &altera_uart_ops;
 	port->flags = UPF_BOOT_AUTOCONF;
 
-	dev_set_drvdata(&pdev->dev, port);
+	platform_set_drvdata(pdev, port);
 
 	uart_add_one_port(&altera_uart_driver, port);
 
@@ -600,11 +600,11 @@ static int __devinit altera_uart_probe(struct platform_device *pdev)
 
 static int __devexit altera_uart_remove(struct platform_device *pdev)
 {
-	struct uart_port *port = dev_get_drvdata(&pdev->dev);
+	struct uart_port *port = platform_get_drvdata(pdev);
 
 	if (port) {
 		uart_remove_one_port(&altera_uart_driver, port);
-		dev_set_drvdata(&pdev->dev, NULL);
+		platform_set_drvdata(pdev, NULL);
 		port->mapbase = 0;
 	}
 
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 0d91a540bf1..22317dd1647 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -312,16 +312,12 @@ static int pl010_startup(struct uart_port *port)
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	int retval;
 
-	retval = clk_prepare(uap->clk);
-	if (retval)
-		goto out;
-
 	/*
 	 * Try to enable the clock producer.
 	 */
-	retval = clk_enable(uap->clk);
+	retval = clk_prepare_enable(uap->clk);
 	if (retval)
-		goto clk_unprep;
+		goto out;
 
 	uap->port.uartclk = clk_get_rate(uap->clk);
 
@@ -346,9 +342,7 @@ static int pl010_startup(struct uart_port *port)
 	return 0;
 
  clk_dis:
-	clk_disable(uap->clk);
- clk_unprep:
-	clk_unprepare(uap->clk);
+	clk_disable_unprepare(uap->clk);
  out:
 	return retval;
 }
@@ -375,8 +369,7 @@ static void pl010_shutdown(struct uart_port *port)
 	/*
 	 * Shut down the clock producer
 	 */
-	clk_disable(uap->clk);
-	clk_unprepare(uap->clk);
+	clk_disable_unprepare(uap->clk);
 }
 
 static void
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index d3553b5d3fc..d7e1edec50b 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -52,6 +52,8 @@
 #include <linux/scatterlist.h>
 #include <linux/delay.h>
 #include <linux/types.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/sizes.h>
 
@@ -75,7 +77,6 @@ struct vendor_data {
 	unsigned int		lcrh_tx;
 	unsigned int		lcrh_rx;
 	bool			oversampling;
-	bool			interrupt_may_hang;   /* vendor-specific */
 	bool			dma_threshold;
 	bool			cts_event_workaround;
 };
@@ -96,7 +97,6 @@ static struct vendor_data vendor_st = {
 	.lcrh_tx		= ST_UART011_LCRH_TX,
 	.lcrh_rx		= ST_UART011_LCRH_RX,
 	.oversampling		= true,
-	.interrupt_may_hang	= true,
 	.dma_threshold		= true,
 	.cts_event_workaround	= true,
 };
@@ -147,7 +147,6 @@ struct uart_amba_port {
 	unsigned int		old_cr;		/* state during shutdown */
 	bool			autorts;
 	char			type[12];
-	bool			interrupt_may_hang; /* vendor-specific */
 #ifdef CONFIG_DMA_ENGINE
 	/* DMA stuff */
 	bool			using_tx_dma;
@@ -1215,14 +1214,14 @@ static irqreturn_t pl011_int(int irq, void *dev_id)
 	return IRQ_RETVAL(handled);
 }
 
-static unsigned int pl01x_tx_empty(struct uart_port *port)
+static unsigned int pl011_tx_empty(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int status = readw(uap->port.membase + UART01x_FR);
 	return status & (UART01x_FR_BUSY|UART01x_FR_TXFF) ? 0 : TIOCSER_TEMT;
 }
 
-static unsigned int pl01x_get_mctrl(struct uart_port *port)
+static unsigned int pl011_get_mctrl(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int result = 0;
@@ -1285,11 +1284,40 @@ static void pl011_break_ctl(struct uart_port *port, int break_state)
 }
 
 #ifdef CONFIG_CONSOLE_POLL
-static int pl010_get_poll_char(struct uart_port *port)
+
+static void pl011_quiesce_irqs(struct uart_port *port)
+{
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+	unsigned char __iomem *regs = uap->port.membase;
+
+	writew(readw(regs + UART011_MIS), regs + UART011_ICR);
+	/*
+	 * There is no way to clear TXIM as this is "ready to transmit IRQ", so
+	 * we simply mask it. start_tx() will unmask it.
+	 *
+	 * Note we can race with start_tx(), and if the race happens, the
+	 * polling user might get another interrupt just after we clear it.
+	 * But it should be OK and can happen even w/o the race, e.g.
+	 * controller immediately got some new data and raised the IRQ.
+	 *
+	 * And whoever uses polling routines assumes that it manages the device
+	 * (including tx queue), so we're also fine with start_tx()'s caller
+	 * side.
+	 */
+	writew(readw(regs + UART011_IMSC) & ~UART011_TXIM, regs + UART011_IMSC);
+}
+
+static int pl011_get_poll_char(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int status;
 
+	/*
+	 * The caller might need IRQs lowered, e.g. if used with KDB NMI
+	 * debugger.
+	 */
+	pl011_quiesce_irqs(port);
+
 	status = readw(uap->port.membase + UART01x_FR);
 	if (status & UART01x_FR_RXFE)
 		return NO_POLL_CHAR;
@@ -1297,7 +1325,7 @@ static int pl010_get_poll_char(struct uart_port *port)
 	return readw(uap->port.membase + UART01x_DR);
 }
 
-static void pl010_put_poll_char(struct uart_port *port,
+static void pl011_put_poll_char(struct uart_port *port,
 			 unsigned char ch)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
@@ -1310,10 +1338,9 @@ static void pl010_put_poll_char(struct uart_port *port,
 
 #endif /* CONFIG_CONSOLE_POLL */
 
-static int pl011_startup(struct uart_port *port)
+static int pl011_hwinit(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
-	unsigned int cr;
 	int retval;
 
 	/* Optionaly enable pins to be muxed in and configured */
@@ -1324,16 +1351,12 @@ static int pl011_startup(struct uart_port *port)
 				"could not set default pins\n");
 	}
 
-	retval = clk_prepare(uap->clk);
-	if (retval)
-		goto out;
-
 	/*
 	 * Try to enable the clock producer.
 	 */
-	retval = clk_enable(uap->clk);
+	retval = clk_prepare_enable(uap->clk);
 	if (retval)
-		goto clk_unprep;
+		goto out;
 
 	uap->port.uartclk = clk_get_rate(uap->clk);
 
@@ -1342,6 +1365,37 @@ static int pl011_startup(struct uart_port *port)
 	       UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
 
 	/*
+	 * Save interrupts enable mask, and enable RX interrupts in case if
+	 * the interrupt is used for NMI entry.
+	 */
+	uap->im = readw(uap->port.membase + UART011_IMSC);
+	writew(UART011_RTIM | UART011_RXIM, uap->port.membase + UART011_IMSC);
+
+	if (uap->port.dev->platform_data) {
+		struct amba_pl011_data *plat;
+
+		plat = uap->port.dev->platform_data;
+		if (plat->init)
+			plat->init();
+	}
+	return 0;
+ out:
+	return retval;
+}
+
+static int pl011_startup(struct uart_port *port)
+{
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+	unsigned int cr;
+	int retval;
+
+	retval = pl011_hwinit(port);
+	if (retval)
+		goto clk_dis;
+
+	writew(uap->im, uap->port.membase + UART011_IMSC);
+
+	/*
 	 * Allocate the IRQ
 	 */
 	retval = request_irq(uap->port.irq, pl011_int, 0, "uart-pl011", uap);
@@ -1400,21 +1454,10 @@ static int pl011_startup(struct uart_port *port)
 	writew(uap->im, uap->port.membase + UART011_IMSC);
 	spin_unlock_irq(&uap->port.lock);
 
-	if (uap->port.dev->platform_data) {
-		struct amba_pl011_data *plat;
-
-		plat = uap->port.dev->platform_data;
-		if (plat->init)
-			plat->init();
-	}
-
 	return 0;
 
  clk_dis:
-	clk_disable(uap->clk);
- clk_unprep:
-	clk_unprepare(uap->clk);
- out:
+	clk_disable_unprepare(uap->clk);
 	return retval;
 }
 
@@ -1473,8 +1516,7 @@ static void pl011_shutdown(struct uart_port *port)
 	/*
 	 * Shut down the clock producer
 	 */
-	clk_disable(uap->clk);
-	clk_unprepare(uap->clk);
+	clk_disable_unprepare(uap->clk);
 	/* Optionally let pins go into sleep states */
 	if (!IS_ERR(uap->pins_sleep)) {
 		retval = pinctrl_select_state(uap->pinctrl, uap->pins_sleep);
@@ -1603,13 +1645,26 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
 			old_cr &= ~ST_UART011_CR_OVSFACT;
 	}
 
+	/*
+	 * Workaround for the ST Micro oversampling variants to
+	 * increase the bitrate slightly, by lowering the divisor,
+	 * to avoid delayed sampling of start bit at high speeds,
+	 * else we see data corruption.
+	 */
+	if (uap->vendor->oversampling) {
+		if ((baud >= 3000000) && (baud < 3250000) && (quot > 1))
+			quot -= 1;
+		else if ((baud > 3250000) && (quot > 2))
+			quot -= 2;
+	}
 	/* Set baud rate */
 	writew(quot & 0x3f, port->membase + UART011_FBRD);
 	writew(quot >> 6, port->membase + UART011_IBRD);
 
 	/*
 	 * ----------v----------v----------v----------v-----
-	 * NOTE: MUST BE WRITTEN AFTER UARTLCR_M & UARTLCR_L
+	 * NOTE: lcrh_tx and lcrh_rx MUST BE WRITTEN AFTER
+	 * UART011_FBRD & UART011_IBRD.
 	 * ----------^----------^----------^----------^-----
 	 */
 	writew(lcr_h, port->membase + uap->lcrh_rx);
@@ -1637,7 +1692,7 @@ static const char *pl011_type(struct uart_port *port)
 /*
  * Release the memory region(s) being used by 'port'
  */
-static void pl010_release_port(struct uart_port *port)
+static void pl011_release_port(struct uart_port *port)
 {
 	release_mem_region(port->mapbase, SZ_4K);
 }
@@ -1645,7 +1700,7 @@ static void pl010_release_port(struct uart_port *port)
 /*
  * Request the memory region(s) being used by 'port'
  */
-static int pl010_request_port(struct uart_port *port)
+static int pl011_request_port(struct uart_port *port)
 {
 	return request_mem_region(port->mapbase, SZ_4K, "uart-pl011")
 			!= NULL ? 0 : -EBUSY;
@@ -1654,18 +1709,18 @@ static int pl010_request_port(struct uart_port *port)
 /*
  * Configure/autoconfigure the port.
  */
-static void pl010_config_port(struct uart_port *port, int flags)
+static void pl011_config_port(struct uart_port *port, int flags)
 {
 	if (flags & UART_CONFIG_TYPE) {
 		port->type = PORT_AMBA;
-		pl010_request_port(port);
+		pl011_request_port(port);
 	}
 }
 
 /*
  * verify the new serial_struct (for TIOCSSERIAL).
  */
-static int pl010_verify_port(struct uart_port *port, struct serial_struct *ser)
+static int pl011_verify_port(struct uart_port *port, struct serial_struct *ser)
 {
 	int ret = 0;
 	if (ser->type != PORT_UNKNOWN && ser->type != PORT_AMBA)
@@ -1678,9 +1733,9 @@ static int pl010_verify_port(struct uart_port *port, struct serial_struct *ser)
 }
 
 static struct uart_ops amba_pl011_pops = {
-	.tx_empty	= pl01x_tx_empty,
+	.tx_empty	= pl011_tx_empty,
 	.set_mctrl	= pl011_set_mctrl,
-	.get_mctrl	= pl01x_get_mctrl,
+	.get_mctrl	= pl011_get_mctrl,
 	.stop_tx	= pl011_stop_tx,
 	.start_tx	= pl011_start_tx,
 	.stop_rx	= pl011_stop_rx,
@@ -1691,13 +1746,14 @@ static struct uart_ops amba_pl011_pops = {
 	.flush_buffer	= pl011_dma_flush_buffer,
 	.set_termios	= pl011_set_termios,
 	.type		= pl011_type,
-	.release_port	= pl010_release_port,
-	.request_port	= pl010_request_port,
-	.config_port	= pl010_config_port,
-	.verify_port	= pl010_verify_port,
+	.release_port	= pl011_release_port,
+	.request_port	= pl011_request_port,
+	.config_port	= pl011_config_port,
+	.verify_port	= pl011_verify_port,
 #ifdef CONFIG_CONSOLE_POLL
-	.poll_get_char = pl010_get_poll_char,
-	.poll_put_char = pl010_put_poll_char,
+	.poll_init     = pl011_hwinit,
+	.poll_get_char = pl011_get_poll_char,
+	.poll_put_char = pl011_put_poll_char,
 #endif
 };
 
@@ -1869,6 +1925,38 @@ static struct uart_driver amba_reg = {
 	.cons			= AMBA_CONSOLE,
 };
 
+static int pl011_probe_dt_alias(int index, struct device *dev)
+{
+	struct device_node *np;
+	static bool seen_dev_with_alias = false;
+	static bool seen_dev_without_alias = false;
+	int ret = index;
+
+	if (!IS_ENABLED(CONFIG_OF))
+		return ret;
+
+	np = dev->of_node;
+	if (!np)
+		return ret;
+
+	ret = of_alias_get_id(np, "serial");
+	if (IS_ERR_VALUE(ret)) {
+		seen_dev_without_alias = true;
+		ret = index;
+	} else {
+		seen_dev_with_alias = true;
+		if (ret >= ARRAY_SIZE(amba_ports) || amba_ports[ret] != NULL) {
+			dev_warn(dev, "requested serial port %d  not available.\n", ret);
+			ret = index;
+		}
+	}
+
+	if (seen_dev_with_alias && seen_dev_without_alias)
+		dev_warn(dev, "aliased and non-aliased serial devices found in device tree. Serial port enumeration may be unpredictable.\n");
+
+	return ret;
+}
+
 static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 {
 	struct uart_amba_port *uap;
@@ -1891,6 +1979,8 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 		goto out;
 	}
 
+	i = pl011_probe_dt_alias(i, &dev->dev);
+
 	base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!base) {
 		ret = -ENOMEM;
@@ -1923,7 +2013,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 	uap->lcrh_tx = vendor->lcrh_tx;
 	uap->old_cr = 0;
 	uap->fifosize = vendor->fifosize;
-	uap->interrupt_may_hang = vendor->interrupt_may_hang;
 	uap->port.dev = &dev->dev;
 	uap->port.mapbase = dev->res.start;
 	uap->port.membase = base;
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index bd97db23985..9242d56ba26 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -182,7 +182,7 @@ static void bfin_serial_start_tx(struct uart_port *port)
 	 * To avoid losting RX interrupt, we reset IR function
 	 * before sending data.
 	 */
-	if (tty->termios->c_line == N_IRDA)
+	if (tty->termios.c_line == N_IRDA)
 		bfin_serial_reset_irda(port);
 
 #ifdef CONFIG_SERIAL_BFIN_DMA
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index b418947b710..d0dd9194cec 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -71,7 +71,7 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo);
 
 /**************************************************************/
 
-#define HW_BUF_SPD_THRESHOLD    9600
+#define HW_BUF_SPD_THRESHOLD    2400
 
 /*
  * Check, if transmit buffers are processed
@@ -417,6 +417,7 @@ static int cpm_uart_startup(struct uart_port *port)
 			clrbits32(&pinfo->sccp->scc_gsmrl, SCC_GSMRL_ENR);
 			clrbits16(&pinfo->sccp->scc_sccm, UART_SCCM_RX);
 		}
+		cpm_uart_initbd(pinfo);
 		cpm_line_cr_cmd(pinfo, CPM_CR_INIT_TRX);
 	}
 	/* Install interrupt handler. */
@@ -500,16 +501,28 @@ static void cpm_uart_set_termios(struct uart_port *port,
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
 	smc_t __iomem *smcp = pinfo->smcp;
 	scc_t __iomem *sccp = pinfo->sccp;
+	int maxidl;
 
 	pr_debug("CPM uart[%d]:set_termios\n", port->line);
 
 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16);
-	if (baud <= HW_BUF_SPD_THRESHOLD ||
+	if (baud < HW_BUF_SPD_THRESHOLD ||
 	    (pinfo->port.state && pinfo->port.state->port.tty->low_latency))
 		pinfo->rx_fifosize = 1;
 	else
 		pinfo->rx_fifosize = RX_BUF_SIZE;
 
+	/* MAXIDL is the timeout after which a receive buffer is closed
+	 * when not full if no more characters are received.
+	 * We calculate it from the baudrate so that the duration is
+	 * always the same at standard rates: about 4ms.
+	 */
+	maxidl = baud / 2400;
+	if (maxidl < 1)
+		maxidl = 1;
+	if (maxidl > 0x10)
+		maxidl = 0x10;
+
 	/* Character length programmed into the mode register is the
 	 * sum of: 1 start bit, number of data bits, 0 or 1 parity bit,
 	 * 1 or 2 stop bits, minus 1.
@@ -610,6 +623,7 @@ static void cpm_uart_set_termios(struct uart_port *port,
 		 * SMC/SCC receiver is disabled.
 		 */
 		out_be16(&pinfo->smcup->smc_mrblr, pinfo->rx_fifosize);
+		out_be16(&pinfo->smcup->smc_maxidl, maxidl);
 
 		/* Set the mode register.  We want to keep a copy of the
 		 * enables, because we want to put them back if they were
@@ -622,6 +636,7 @@ static void cpm_uart_set_termios(struct uart_port *port,
 		    SMCMR_SM_UART | prev_mode);
 	} else {
 		out_be16(&pinfo->sccup->scc_genscc.scc_mrblr, pinfo->rx_fifosize);
+		out_be16(&pinfo->sccup->scc_maxidl, maxidl);
 		out_be16(&sccp->scc_psmr, (sbits << 12) | scval);
 	}
 
@@ -798,7 +813,7 @@ static void cpm_uart_init_scc(struct uart_cpm_port *pinfo)
 	cpm_set_scc_fcr(sup);
 
 	out_be16(&sup->scc_genscc.scc_mrblr, pinfo->rx_fifosize);
-	out_be16(&sup->scc_maxidl, pinfo->rx_fifosize);
+	out_be16(&sup->scc_maxidl, 0x10);
 	out_be16(&sup->scc_brkcr, 1);
 	out_be16(&sup->scc_parec, 0);
 	out_be16(&sup->scc_frmec, 0);
@@ -872,7 +887,7 @@ static void cpm_uart_init_smc(struct uart_cpm_port *pinfo)
 
 	/* Using idle character time requires some additional tuning.  */
 	out_be16(&up->smc_mrblr, pinfo->rx_fifosize);
-	out_be16(&up->smc_maxidl, pinfo->rx_fifosize);
+	out_be16(&up->smc_maxidl, 0x10);
 	out_be16(&up->smc_brklen, 0);
 	out_be16(&up->smc_brkec, 0);
 	out_be16(&up->smc_brkcr, 1);
diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index 80b6b1b1f72..35ee6a2c687 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -955,7 +955,7 @@ static const struct control_pins e100_modem_pins[NR_PORTS] =
 /* Calculate the chartime depending on baudrate, numbor of bits etc. */
 static void update_char_time(struct e100_serial * info)
 {
-	tcflag_t cflags = info->port.tty->termios->c_cflag;
+	tcflag_t cflags = info->port.tty->termios.c_cflag;
 	int bits;
 
 	/* calc. number of bits / data byte */
@@ -1473,7 +1473,7 @@ rs_stop(struct tty_struct *tty)
 		xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char,
 				STOP_CHAR(info->port.tty));
 		xoff |= IO_STATE(R_SERIAL0_XOFF, tx_stop, stop);
-		if (tty->termios->c_iflag & IXON ) {
+		if (tty->termios.c_iflag & IXON ) {
 			xoff |= IO_STATE(R_SERIAL0_XOFF, auto_xoff, enable);
 		}
 
@@ -1496,7 +1496,7 @@ rs_start(struct tty_struct *tty)
 					 info->xmit.tail,SERIAL_XMIT_SIZE)));
 		xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char, STOP_CHAR(tty));
 		xoff |= IO_STATE(R_SERIAL0_XOFF, tx_stop, enable);
-		if (tty->termios->c_iflag & IXON ) {
+		if (tty->termios.c_iflag & IXON ) {
 			xoff |= IO_STATE(R_SERIAL0_XOFF, auto_xoff, enable);
 		}
 
@@ -2929,7 +2929,7 @@ shutdown(struct e100_serial * info)
 			descr[i].buf = 0;
 		}
 
-	if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
+	if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) {
 		/* hang up DTR and RTS if HUPCL is enabled */
 		e100_dtr(info, 0);
 		e100_rts(info, 0); /* could check CRTSCTS before doing this */
@@ -2953,12 +2953,12 @@ change_speed(struct e100_serial *info)
 	unsigned long flags;
 	/* first some safety checks */
 
-	if (!info->port.tty || !info->port.tty->termios)
+	if (!info->port.tty)
 		return;
 	if (!info->ioport)
 		return;
 
-	cflag = info->port.tty->termios->c_cflag;
+	cflag = info->port.tty->termios.c_cflag;
 
 	/* possibly, the tx/rx should be disabled first to do this safely */
 
@@ -3088,7 +3088,7 @@ change_speed(struct e100_serial *info)
 	info->ioport[REG_REC_CTRL] = info->rx_ctrl;
 	xoff = IO_FIELD(R_SERIAL0_XOFF, xoff_char, STOP_CHAR(info->port.tty));
 	xoff |= IO_STATE(R_SERIAL0_XOFF, tx_stop, enable);
-	if (info->port.tty->termios->c_iflag & IXON ) {
+	if (info->port.tty->termios.c_iflag & IXON ) {
 		DFLOW(DEBUG_LOG(info->line, "FLOW XOFF enabled 0x%02X\n",
 				STOP_CHAR(info->port.tty)));
 		xoff |= IO_STATE(R_SERIAL0_XOFF, auto_xoff, enable);
@@ -3355,7 +3355,7 @@ rs_throttle(struct tty_struct * tty)
 	DFLOW(DEBUG_LOG(info->line,"rs_throttle %lu\n", tty->ldisc.chars_in_buffer(tty)));
 
 	/* Do RTS before XOFF since XOFF might take some time */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		/* Turn off RTS line */
 		e100_rts(info, 0);
 	}
@@ -3377,7 +3377,7 @@ rs_unthrottle(struct tty_struct * tty)
 	DFLOW(DEBUG_LOG(info->line,"rs_unthrottle ldisc %d\n", tty->ldisc.chars_in_buffer(tty)));
 	DFLOW(DEBUG_LOG(info->line,"rs_unthrottle flip.count: %i\n", tty->flip.count));
 	/* Do RTS before XOFF since XOFF might take some time */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		/* Assert RTS line  */
 		e100_rts(info, 1);
 	}
@@ -3748,7 +3748,7 @@ rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle turning off CRTSCTS */
 	if ((old_termios->c_cflag & CRTSCTS) &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		rs_start(tty);
 	}
@@ -3815,7 +3815,7 @@ rs_close(struct tty_struct *tty, struct file * filp)
 	 * separate termios for callout and dialin.
 	 */
 	if (info->flags & ASYNC_NORMAL_ACTIVE)
-		info->normal_termios = *tty->termios;
+		info->normal_termios = tty->termios;
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify
 	 * the line discipline to only process XON/XOFF characters.
@@ -3976,7 +3976,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
 	 */
 	if (tty_hung_up_p(filp) ||
 	    (info->flags & ASYNC_CLOSING)) {
-		wait_event_interruptible_tty(info->close_wait,
+		wait_event_interruptible_tty(tty, info->close_wait,
 			!(info->flags & ASYNC_CLOSING));
 #ifdef SERIAL_DO_RESTART
 		if (info->flags & ASYNC_HUP_NOTIFY)
@@ -3998,7 +3998,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
 		return 0;
 	}
 
-	if (tty->termios->c_cflag & CLOCAL) {
+	if (tty->termios.c_cflag & CLOCAL) {
 			do_clocal = 1;
 	}
 
@@ -4052,9 +4052,9 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
 		printk("block_til_ready blocking: ttyS%d, count = %d\n",
 		       info->line, info->count);
 #endif
-		tty_unlock();
+		tty_unlock(tty);
 		schedule();
-		tty_lock();
+		tty_lock(tty);
 	}
 	set_current_state(TASK_RUNNING);
 	remove_wait_queue(&info->open_wait, &wait);
@@ -4115,7 +4115,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
 	 */
 	if (tty_hung_up_p(filp) ||
 	    (info->flags & ASYNC_CLOSING)) {
-		wait_event_interruptible_tty(info->close_wait,
+		wait_event_interruptible_tty(tty, info->close_wait,
 			!(info->flags & ASYNC_CLOSING));
 #ifdef SERIAL_DO_RESTART
 		return ((info->flags & ASYNC_HUP_NOTIFY) ?
@@ -4219,7 +4219,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
 	}
 
 	if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
-		*tty->termios = info->normal_termios;
+		tty->termios = info->normal_termios;
 		change_speed(info);
 	}
 
@@ -4443,14 +4443,12 @@ static int __init rs_init(void)
 		B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
 	driver->init_termios.c_ispeed = 115200;
 	driver->init_termios.c_ospeed = 115200;
-	driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+	driver->flags = TTY_DRIVER_REAL_RAW;
 
 	tty_set_operations(driver, &rs_ops);
         serial_driver = driver;
-	if (tty_register_driver(driver))
-		panic("Couldn't register serial driver\n");
-	/* do some initializing for the separate ports */
 
+	/* do some initializing for the separate ports */
 	for (i = 0, info = rs_table; i < NR_PORTS; i++,info++) {
 		if (info->enabled) {
 			if (cris_request_io_interface(info->io_if,
@@ -4502,7 +4500,12 @@ static int __init rs_init(void)
 			printk(KERN_INFO "%s%d at %p is a builtin UART with DMA\n",
 			       serial_driver->name, info->line, info->ioport);
 		}
+		tty_port_link_device(&info->port, driver, i);
 	}
+
+	if (tty_register_driver(driver))
+		panic("Couldn't register serial driver\n");
+
 #ifdef CONFIG_ETRAX_FAST_TIMER
 #ifdef CONFIG_ETRAX_SERIAL_FAST_TIMER
 	memset(fast_timers, 0, sizeof(fast_timers));
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 144cd3987d4..5b9bc19ed13 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -800,8 +800,8 @@ static int ifx_spi_create_port(struct ifx_spi_device *ifx_dev)
 	tty_port_init(pport);
 	pport->ops = &ifx_tty_port_ops;
 	ifx_dev->minor = IFX_SPI_TTY_ID;
-	ifx_dev->tty_dev = tty_register_device(tty_drv, ifx_dev->minor,
-					       &ifx_dev->spi_dev->dev);
+	ifx_dev->tty_dev = tty_port_register_device(pport, tty_drv,
+			ifx_dev->minor, &ifx_dev->spi_dev->dev);
 	if (IS_ERR(ifx_dev->tty_dev)) {
 		dev_dbg(&ifx_dev->spi_dev->dev,
 			"%s: registering tty device failed", __func__);
@@ -1331,7 +1331,7 @@ static const struct spi_device_id ifx_id_table[] = {
 MODULE_DEVICE_TABLE(spi, ifx_id_table);
 
 /* spi operations */
-static const struct spi_driver ifx_spi_driver = {
+static struct spi_driver ifx_spi_driver = {
 	.driver = {
 		.name = DRVNAME,
 		.pm = &ifx_spi_pm,
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index d5c689d6217..59819121fe9 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -51,7 +51,7 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <mach/imx-uart.h>
+#include <linux/platform_data/serial-imx.h>
 
 /* Register definitions */
 #define URXD0 0x0  /* Receiver Register */
@@ -132,6 +132,7 @@
 #define  UCR4_OREN  	 (1<<1)  /* Receiver overrun interrupt enable */
 #define  UCR4_DREN  	 (1<<0)  /* Recv data ready interrupt enable */
 #define  UFCR_RXTL_SHF   0       /* Receiver trigger level shift */
+#define  UFCR_DCEDTE	 (1<<6)  /* DCE/DTE mode select */
 #define  UFCR_RFDIV      (7<<7)  /* Reference freq divider mask */
 #define  UFCR_RFDIV_REG(x)	(((x) < 7 ? 6 - (x) : 6) << 7)
 #define  UFCR_TXTL_SHF   10      /* Transmitter trigger level shift */
@@ -206,7 +207,7 @@ struct imx_port {
 	unsigned short		trcv_delay; /* transceiver delay */
 	struct clk		*clk_ipg;
 	struct clk		*clk_per;
-	struct imx_uart_data	*devdata;
+	const struct imx_uart_data *devdata;
 };
 
 struct imx_port_ucrs {
@@ -667,22 +668,11 @@ static void imx_break_ctl(struct uart_port *port, int break_state)
 static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
 {
 	unsigned int val;
-	unsigned int ufcr_rfdiv;
-
-	/* set receiver / transmitter trigger level.
-	 * RFDIV is set such way to satisfy requested uartclk value
-	 */
-	val = TXTL << 10 | RXTL;
-	ufcr_rfdiv = (clk_get_rate(sport->clk_per) + sport->port.uartclk / 2)
-			/ sport->port.uartclk;
-
-	if(!ufcr_rfdiv)
-		ufcr_rfdiv = 1;
-
-	val |= UFCR_RFDIV_REG(ufcr_rfdiv);
 
+	/* set receiver / transmitter trigger level */
+	val = readl(sport->port.membase + UFCR) & (UFCR_RFDIV | UFCR_DCEDTE);
+	val |= TXTL << UFCR_TXTL_SHF | RXTL;
 	writel(val, sport->port.membase + UFCR);
-
 	return 0;
 }
 
@@ -754,6 +744,7 @@ static int imx_startup(struct uart_port *port)
 		}
 	}
 
+	spin_lock_irqsave(&sport->port.lock, flags);
 	/*
 	 * Finally, clear and enable interrupts
 	 */
@@ -807,7 +798,6 @@ static int imx_startup(struct uart_port *port)
 	/*
 	 * Enable modem status interrupts
 	 */
-	spin_lock_irqsave(&sport->port.lock,flags);
 	imx_enable_ms(&sport->port);
 	spin_unlock_irqrestore(&sport->port.lock,flags);
 
@@ -837,10 +827,13 @@ static void imx_shutdown(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
 	unsigned long temp;
+	unsigned long flags;
 
+	spin_lock_irqsave(&sport->port.lock, flags);
 	temp = readl(sport->port.membase + UCR2);
 	temp &= ~(UCR2_TXEN);
 	writel(temp, sport->port.membase + UCR2);
+	spin_unlock_irqrestore(&sport->port.lock, flags);
 
 	if (USE_IRDA(sport)) {
 		struct imxuart_platform_data *pdata;
@@ -869,12 +862,14 @@ static void imx_shutdown(struct uart_port *port)
 	 * Disable all interrupts, port and break condition.
 	 */
 
+	spin_lock_irqsave(&sport->port.lock, flags);
 	temp = readl(sport->port.membase + UCR1);
 	temp &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
 	if (USE_IRDA(sport))
 		temp &= ~(UCR1_IREN);
 
 	writel(temp, sport->port.membase + UCR1);
+	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
 static void
@@ -1217,6 +1212,9 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 	struct imx_port *sport = imx_ports[co->index];
 	struct imx_port_ucrs old_ucr;
 	unsigned int ucr1;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sport->port.lock, flags);
 
 	/*
 	 *	First, save UCR1/2/3 and then disable interrupts
@@ -1242,6 +1240,8 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 	while (!(readl(sport->port.membase + USR2) & USR2_TXDC));
 
 	imx_port_ucrs_restore(&sport->port, &old_ucr);
+
+	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
 /*
@@ -1373,8 +1373,7 @@ static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
 	val |= UCR3_AWAKEN;
 	writel(val, sport->port.membase + UCR3);
 
-	if (sport)
-		uart_suspend_port(&imx_reg, &sport->port);
+	uart_suspend_port(&imx_reg, &sport->port);
 
 	return 0;
 }
@@ -1389,8 +1388,7 @@ static int serial_imx_resume(struct platform_device *dev)
 	val &= ~UCR3_AWAKEN;
 	writel(val, sport->port.membase + UCR3);
 
-	if (sport)
-		uart_resume_port(&imx_reg, &sport->port);
+	uart_resume_port(&imx_reg, &sport->port);
 
 	return 0;
 }
@@ -1505,18 +1503,21 @@ static int serial_imx_probe(struct platform_device *pdev)
 	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
 	if (IS_ERR(pinctrl)) {
 		ret = PTR_ERR(pinctrl);
+		dev_err(&pdev->dev, "failed to get default pinctrl: %d\n", ret);
 		goto unmap;
 	}
 
 	sport->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(sport->clk_ipg)) {
 		ret = PTR_ERR(sport->clk_ipg);
+		dev_err(&pdev->dev, "failed to get ipg clk: %d\n", ret);
 		goto unmap;
 	}
 
 	sport->clk_per = devm_clk_get(&pdev->dev, "per");
 	if (IS_ERR(sport->clk_per)) {
 		ret = PTR_ERR(sport->clk_per);
+		dev_err(&pdev->dev, "failed to get per clk: %d\n", ret);
 		goto unmap;
 	}
 
@@ -1537,7 +1538,7 @@ static int serial_imx_probe(struct platform_device *pdev)
 	ret = uart_add_one_port(&imx_reg, &sport->port);
 	if (ret)
 		goto deinit;
-	platform_set_drvdata(pdev, &sport->port);
+	platform_set_drvdata(pdev, sport);
 
 	return 0;
 deinit:
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c
index 758ff310f7f..5ac52898a0b 100644
--- a/drivers/tty/serial/ioc3_serial.c
+++ b/drivers/tty/serial/ioc3_serial.c
@@ -1120,13 +1120,14 @@ static inline int do_read(struct uart_port *the_port, char *buf, int len)
 	struct ioc3_port *port = get_ioc3_port(the_port);
 	struct ring *inring;
 	struct ring_entry *entry;
-	struct port_hooks *hooks = port->ip_hooks;
+	struct port_hooks *hooks;
 	int byte_num;
 	char *sc;
 	int loop_counter;
 
 	BUG_ON(!(len >= 0));
 	BUG_ON(!port);
+	hooks = port->ip_hooks;
 
 	/* There is a nasty timing issue in the IOC3. When the rx_timer
 	 * expires or the rx_high condition arises, we take an interrupt.
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
index e16894fb2ca..3e7da10cebb 100644
--- a/drivers/tty/serial/ioc4_serial.c
+++ b/drivers/tty/serial/ioc4_serial.c
@@ -1803,7 +1803,7 @@ static inline int ic4_startup_local(struct uart_port *the_port)
 	ioc4_set_proto(port, the_port->mapbase);
 
 	/* set the speed of the serial port */
-	ioc4_change_speed(the_port, state->port.tty->termios,
+	ioc4_change_speed(the_port, &state->port.tty->termios,
 			  (struct ktermios *)0);
 
 	return 0;
@@ -2069,13 +2069,14 @@ static inline int do_read(struct uart_port *the_port, unsigned char *buf,
 	struct ioc4_port *port = get_ioc4_port(the_port, 0);
 	struct ring *inring;
 	struct ring_entry *entry;
-	struct hooks *hooks = port->ip_hooks;
+	struct hooks *hooks;
 	int byte_num;
 	char *sc;
 	int loop_counter;
 
 	BUG_ON(!(len >= 0));
 	BUG_ON(!port);
+	hooks = port->ip_hooks;
 
 	/* There is a nasty timing issue in the IOC4. When the rx_timer
 	 * expires or the rx_high condition arises, we take an interrupt.
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 7545fe1b992..5ab3c3b595e 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -54,7 +54,7 @@ static pci_ers_result_t jsm_io_error_detected(struct pci_dev *pdev,
 static pci_ers_result_t jsm_io_slot_reset(struct pci_dev *pdev);
 static void jsm_io_resume(struct pci_dev *pdev);
 
-static struct pci_error_handlers jsm_err_handler = {
+static const struct pci_error_handlers jsm_err_handler = {
 	.error_detected = jsm_io_error_detected,
 	.slot_reset = jsm_io_slot_reset,
 	.resume = jsm_io_resume,
diff --git a/drivers/tty/serial/jsm/jsm_tty.c b/drivers/tty/serial/jsm/jsm_tty.c
index 434bd881fca..71397961773 100644
--- a/drivers/tty/serial/jsm/jsm_tty.c
+++ b/drivers/tty/serial/jsm/jsm_tty.c
@@ -161,7 +161,7 @@ static void jsm_tty_send_xchar(struct uart_port *port, char ch)
 	struct ktermios *termios;
 
 	spin_lock_irqsave(&port->lock, lock_flags);
-	termios = port->state->port.tty->termios;
+	termios = &port->state->port.tty->termios;
 	if (ch == termios->c_cc[VSTART])
 		channel->ch_bd->bd_ops->send_start_character(channel);
 
@@ -250,7 +250,7 @@ static int jsm_tty_open(struct uart_port *port)
 	channel->ch_cached_lsr = 0;
 	channel->ch_stops_sent = 0;
 
-	termios = port->state->port.tty->termios;
+	termios = &port->state->port.tty->termios;
 	channel->ch_c_cflag	= termios->c_cflag;
 	channel->ch_c_iflag	= termios->c_iflag;
 	channel->ch_c_oflag	= termios->c_oflag;
@@ -283,7 +283,7 @@ static void jsm_tty_close(struct uart_port *port)
 	jsm_printk(CLOSE, INFO, &channel->ch_bd->pci_dev, "start\n");
 
 	bd = channel->ch_bd;
-	ts = port->state->port.tty->termios;
+	ts = &port->state->port.tty->termios;
 
 	channel->ch_flags &= ~(CH_STOPI);
 
@@ -567,7 +567,7 @@ void jsm_input(struct jsm_channel *ch)
 	 *input data and return immediately.
 	 */
 	if (!tp ||
-		!(tp->termios->c_cflag & CREAD) ) {
+		!(tp->termios.c_cflag & CREAD) ) {
 
 		jsm_printk(READ, INFO, &ch->ch_bd->pci_dev,
 			"input. dropping %d bytes on port %d...\n", data_len, ch->ch_portnum);
diff --git a/drivers/tty/serial/kgdb_nmi.c b/drivers/tty/serial/kgdb_nmi.c
new file mode 100644
index 00000000000..d185247ba1a
--- /dev/null
+++ b/drivers/tty/serial/kgdb_nmi.c
@@ -0,0 +1,402 @@
+/*
+ * KGDB NMI serial console
+ *
+ * Copyright 2010 Google, Inc.
+ *		  Arve Hjønnevåg <arve@android.com>
+ *		  Colin Cross <ccross@android.com>
+ * Copyright 2012 Linaro Ltd.
+ *		  Anton Vorontsov <anton.vorontsov@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/compiler.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/atomic.h>
+#include <linux/console.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/interrupt.h>
+#include <linux/hrtimer.h>
+#include <linux/tick.h>
+#include <linux/kfifo.h>
+#include <linux/kgdb.h>
+#include <linux/kdb.h>
+
+static int kgdb_nmi_knock = 1;
+module_param_named(knock, kgdb_nmi_knock, int, 0600);
+MODULE_PARM_DESC(knock, "if set to 1 (default), the special '$3#33' command " \
+			"must be used to enter the debugger; when set to 0, " \
+			"hitting return key is enough to enter the debugger; " \
+			"when set to -1, the debugger is entered immediately " \
+			"upon NMI");
+
+static char *kgdb_nmi_magic = "$3#33";
+module_param_named(magic, kgdb_nmi_magic, charp, 0600);
+MODULE_PARM_DESC(magic, "magic sequence to enter NMI debugger (default $3#33)");
+
+static bool kgdb_nmi_tty_enabled;
+
+static void kgdb_nmi_console_write(struct console *co, const char *s, uint c)
+{
+	int i;
+
+	if (!kgdb_nmi_tty_enabled || atomic_read(&kgdb_active) >= 0)
+		return;
+
+	for (i = 0; i < c; i++)
+		dbg_io_ops->write_char(s[i]);
+}
+
+static struct tty_driver *kgdb_nmi_tty_driver;
+
+static struct tty_driver *kgdb_nmi_console_device(struct console *co, int *idx)
+{
+	*idx = co->index;
+	return kgdb_nmi_tty_driver;
+}
+
+static struct console kgdb_nmi_console = {
+	.name	= "ttyNMI",
+	.write	= kgdb_nmi_console_write,
+	.device	= kgdb_nmi_console_device,
+	.flags	= CON_PRINTBUFFER | CON_ANYTIME | CON_ENABLED,
+	.index	= -1,
+};
+
+/*
+ * This is usually the maximum rate on debug ports. We make fifo large enough
+ * to make copy-pasting to the terminal usable.
+ */
+#define KGDB_NMI_BAUD		115200
+#define KGDB_NMI_FIFO_SIZE	roundup_pow_of_two(KGDB_NMI_BAUD / 8 / HZ)
+
+struct kgdb_nmi_tty_priv {
+	struct tty_port port;
+	struct tasklet_struct tlet;
+	STRUCT_KFIFO(char, KGDB_NMI_FIFO_SIZE) fifo;
+};
+
+static struct kgdb_nmi_tty_priv *kgdb_nmi_port_to_priv(struct tty_port *port)
+{
+	return container_of(port, struct kgdb_nmi_tty_priv, port);
+}
+
+/*
+ * Our debugging console is polled in a tasklet, so we'll check for input
+ * every tick. In HZ-less mode, we should program the next tick.  We have
+ * to use the lowlevel stuff as no locks should be grabbed.
+ */
+#ifdef CONFIG_HIGH_RES_TIMERS
+static void kgdb_tty_poke(void)
+{
+	tick_program_event(ktime_get(), 0);
+}
+#else
+static inline void kgdb_tty_poke(void) {}
+#endif
+
+static struct tty_port *kgdb_nmi_port;
+
+static void kgdb_tty_recv(int ch)
+{
+	struct kgdb_nmi_tty_priv *priv;
+	char c = ch;
+
+	if (!kgdb_nmi_port || ch < 0)
+		return;
+	/*
+	 * Can't use port->tty->driver_data as tty might be not there. Tasklet
+	 * will check for tty and will get the ref, but here we don't have to
+	 * do that, and actually, we can't: we're in NMI context, no locks are
+	 * possible.
+	 */
+	priv = kgdb_nmi_port_to_priv(kgdb_nmi_port);
+	kfifo_in(&priv->fifo, &c, 1);
+	kgdb_tty_poke();
+}
+
+static int kgdb_nmi_poll_one_knock(void)
+{
+	static int n;
+	int c = -1;
+	const char *magic = kgdb_nmi_magic;
+	size_t m = strlen(magic);
+	bool printch = 0;
+
+	c = dbg_io_ops->read_char();
+	if (c == NO_POLL_CHAR)
+		return c;
+
+	if (!kgdb_nmi_knock && (c == '\r' || c == '\n')) {
+		return 1;
+	} else if (c == magic[n]) {
+		n = (n + 1) % m;
+		if (!n)
+			return 1;
+		printch = 1;
+	} else {
+		n = 0;
+	}
+
+	if (kgdb_nmi_tty_enabled) {
+		kgdb_tty_recv(c);
+		return 0;
+	}
+
+	if (printch) {
+		kdb_printf("%c", c);
+		return 0;
+	}
+
+	kdb_printf("\r%s %s to enter the debugger> %*s",
+		   kgdb_nmi_knock ? "Type" : "Hit",
+		   kgdb_nmi_knock ? magic  : "<return>", (int)m, "");
+	while (m--)
+		kdb_printf("\b");
+	return 0;
+}
+
+/**
+ * kgdb_nmi_poll_knock - Check if it is time to enter the debugger
+ *
+ * "Serial ports are often noisy, especially when muxed over another port (we
+ * often use serial over the headset connector). Noise on the async command
+ * line just causes characters that are ignored, on a command line that blocked
+ * execution noise would be catastrophic." -- Colin Cross
+ *
+ * So, this function implements KGDB/KDB knocking on the serial line: we won't
+ * enter the debugger until we receive a known magic phrase (which is actually
+ * "$3#33", known as "escape to KDB" command. There is also a relaxed variant
+ * of knocking, i.e. just pressing the return key is enough to enter the
+ * debugger. And if knocking is disabled, the function always returns 1.
+ */
+bool kgdb_nmi_poll_knock(void)
+{
+	if (kgdb_nmi_knock < 0)
+		return 1;
+
+	while (1) {
+		int ret;
+
+		ret = kgdb_nmi_poll_one_knock();
+		if (ret == NO_POLL_CHAR)
+			return 0;
+		else if (ret == 1)
+			break;
+	}
+	return 1;
+}
+
+/*
+ * The tasklet is cheap, it does not cause wakeups when reschedules itself,
+ * instead it waits for the next tick.
+ */
+static void kgdb_nmi_tty_receiver(unsigned long data)
+{
+	struct kgdb_nmi_tty_priv *priv = (void *)data;
+	struct tty_struct *tty;
+	char ch;
+
+	tasklet_schedule(&priv->tlet);
+
+	if (likely(!kgdb_nmi_tty_enabled || !kfifo_len(&priv->fifo)))
+		return;
+
+	/* Port is there, but tty might be hung up, check. */
+	tty = tty_port_tty_get(kgdb_nmi_port);
+	if (!tty)
+		return;
+
+	while (kfifo_out(&priv->fifo, &ch, 1))
+		tty_insert_flip_char(priv->port.tty, ch, TTY_NORMAL);
+	tty_flip_buffer_push(priv->port.tty);
+
+	tty_kref_put(tty);
+}
+
+static int kgdb_nmi_tty_activate(struct tty_port *port, struct tty_struct *tty)
+{
+	struct kgdb_nmi_tty_priv *priv = tty->driver_data;
+
+	kgdb_nmi_port = port;
+	tasklet_schedule(&priv->tlet);
+	return 0;
+}
+
+static void kgdb_nmi_tty_shutdown(struct tty_port *port)
+{
+	struct kgdb_nmi_tty_priv *priv = port->tty->driver_data;
+
+	tasklet_kill(&priv->tlet);
+	kgdb_nmi_port = NULL;
+}
+
+static const struct tty_port_operations kgdb_nmi_tty_port_ops = {
+	.activate	= kgdb_nmi_tty_activate,
+	.shutdown	= kgdb_nmi_tty_shutdown,
+};
+
+static int kgdb_nmi_tty_install(struct tty_driver *drv, struct tty_struct *tty)
+{
+	struct kgdb_nmi_tty_priv *priv;
+	int ret;
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	INIT_KFIFO(priv->fifo);
+	tasklet_init(&priv->tlet, kgdb_nmi_tty_receiver, (unsigned long)priv);
+	tty_port_init(&priv->port);
+	priv->port.ops = &kgdb_nmi_tty_port_ops;
+	tty->driver_data = priv;
+
+	ret = tty_port_install(&priv->port, drv, tty);
+	if (ret) {
+		pr_err("%s: can't install tty port: %d\n", __func__, ret);
+		goto err;
+	}
+	return 0;
+err:
+	kfree(priv);
+	return ret;
+}
+
+static void kgdb_nmi_tty_cleanup(struct tty_struct *tty)
+{
+	struct kgdb_nmi_tty_priv *priv = tty->driver_data;
+
+	tty->driver_data = NULL;
+	kfree(priv);
+}
+
+static int kgdb_nmi_tty_open(struct tty_struct *tty, struct file *file)
+{
+	struct kgdb_nmi_tty_priv *priv = tty->driver_data;
+
+	return tty_port_open(&priv->port, tty, file);
+}
+
+static void kgdb_nmi_tty_close(struct tty_struct *tty, struct file *file)
+{
+	struct kgdb_nmi_tty_priv *priv = tty->driver_data;
+
+	tty_port_close(&priv->port, tty, file);
+}
+
+static void kgdb_nmi_tty_hangup(struct tty_struct *tty)
+{
+	struct kgdb_nmi_tty_priv *priv = tty->driver_data;
+
+	tty_port_hangup(&priv->port);
+}
+
+static int kgdb_nmi_tty_write_room(struct tty_struct *tty)
+{
+	/* Actually, we can handle any amount as we use polled writes. */
+	return 2048;
+}
+
+static int kgdb_nmi_tty_write(struct tty_struct *tty, const unchar *buf, int c)
+{
+	int i;
+
+	for (i = 0; i < c; i++)
+		dbg_io_ops->write_char(buf[i]);
+	return c;
+}
+
+static const struct tty_operations kgdb_nmi_tty_ops = {
+	.open		= kgdb_nmi_tty_open,
+	.close		= kgdb_nmi_tty_close,
+	.install	= kgdb_nmi_tty_install,
+	.cleanup	= kgdb_nmi_tty_cleanup,
+	.hangup		= kgdb_nmi_tty_hangup,
+	.write_room	= kgdb_nmi_tty_write_room,
+	.write		= kgdb_nmi_tty_write,
+};
+
+static int kgdb_nmi_enable_console(int argc, const char *argv[])
+{
+	kgdb_nmi_tty_enabled = !(argc == 1 && !strcmp(argv[1], "off"));
+	return 0;
+}
+
+int kgdb_register_nmi_console(void)
+{
+	int ret;
+
+	if (!arch_kgdb_ops.enable_nmi)
+		return 0;
+
+	kgdb_nmi_tty_driver = alloc_tty_driver(1);
+	if (!kgdb_nmi_tty_driver) {
+		pr_err("%s: cannot allocate tty\n", __func__);
+		return -ENOMEM;
+	}
+	kgdb_nmi_tty_driver->driver_name	= "ttyNMI";
+	kgdb_nmi_tty_driver->name		= "ttyNMI";
+	kgdb_nmi_tty_driver->num		= 1;
+	kgdb_nmi_tty_driver->type		= TTY_DRIVER_TYPE_SERIAL;
+	kgdb_nmi_tty_driver->subtype		= SERIAL_TYPE_NORMAL;
+	kgdb_nmi_tty_driver->flags		= TTY_DRIVER_REAL_RAW;
+	kgdb_nmi_tty_driver->init_termios	= tty_std_termios;
+	tty_termios_encode_baud_rate(&kgdb_nmi_tty_driver->init_termios,
+				     KGDB_NMI_BAUD, KGDB_NMI_BAUD);
+	tty_set_operations(kgdb_nmi_tty_driver, &kgdb_nmi_tty_ops);
+
+	ret = tty_register_driver(kgdb_nmi_tty_driver);
+	if (ret) {
+		pr_err("%s: can't register tty driver: %d\n", __func__, ret);
+		goto err_drv_reg;
+	}
+
+	ret = kdb_register("nmi_console", kgdb_nmi_enable_console, "[off]",
+			   "switch to Linux NMI console", 0);
+	if (ret) {
+		pr_err("%s: can't register kdb command: %d\n", __func__, ret);
+		goto err_kdb_reg;
+	}
+
+	register_console(&kgdb_nmi_console);
+	arch_kgdb_ops.enable_nmi(1);
+
+	return 0;
+err_kdb_reg:
+	tty_unregister_driver(kgdb_nmi_tty_driver);
+err_drv_reg:
+	put_tty_driver(kgdb_nmi_tty_driver);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(kgdb_register_nmi_console);
+
+int kgdb_unregister_nmi_console(void)
+{
+	int ret;
+
+	if (!arch_kgdb_ops.enable_nmi)
+		return 0;
+	arch_kgdb_ops.enable_nmi(0);
+
+	kdb_unregister("nmi_console");
+
+	ret = unregister_console(&kgdb_nmi_console);
+	if (ret)
+		return ret;
+
+	ret = tty_unregister_driver(kgdb_nmi_tty_driver);
+	if (ret)
+		return ret;
+	put_tty_driver(kgdb_nmi_tty_driver);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(kgdb_unregister_nmi_console);
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 2b42a01a81c..c0b334327d9 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -122,7 +122,7 @@ static void kgdboc_unregister_kbd(void)
 			i--;
 		}
 	}
-	flush_work_sync(&kgdboc_restore_input_work);
+	flush_work(&kgdboc_restore_input_work);
 }
 #else /* ! CONFIG_KDB_KEYBOARD */
 #define kgdboc_register_kbd(x) 0
@@ -145,6 +145,8 @@ __setup("kgdboc=", kgdboc_option_setup);
 
 static void cleanup_kgdboc(void)
 {
+	if (kgdb_unregister_nmi_console())
+		return;
 	kgdboc_unregister_kbd();
 	if (configured == 1)
 		kgdb_unregister_io_module(&kgdboc_io_ops);
@@ -198,11 +200,18 @@ do_register:
 	if (err)
 		goto noconfig;
 
+	err = kgdb_register_nmi_console();
+	if (err)
+		goto nmi_con_failed;
+
 	configured = 1;
 
 	return 0;
 
+nmi_con_failed:
+	kgdb_unregister_io_module(&kgdboc_io_ops);
 noconfig:
+	kgdboc_unregister_kbd();
 	config[0] = 0;
 	configured = 0;
 	cleanup_kgdboc();
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
new file mode 100644
index 00000000000..ba3af3bf6d4
--- /dev/null
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -0,0 +1,823 @@
+/*
+ * High Speed Serial Ports on NXP LPC32xx SoC
+ *
+ * Authors: Kevin Wells <kevin.wells@nxp.com>
+ *          Roland Stigge <stigge@antcom.de>
+ *
+ * Copyright (C) 2010 NXP Semiconductors
+ * Copyright (C) 2012 Roland Stigge
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/sysrq.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/nmi.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/of.h>
+#include <mach/platform.h>
+#include <mach/hardware.h>
+
+/*
+ * High Speed UART register offsets
+ */
+#define LPC32XX_HSUART_FIFO(x)			((x) + 0x00)
+#define LPC32XX_HSUART_LEVEL(x)			((x) + 0x04)
+#define LPC32XX_HSUART_IIR(x)			((x) + 0x08)
+#define LPC32XX_HSUART_CTRL(x)			((x) + 0x0C)
+#define LPC32XX_HSUART_RATE(x)			((x) + 0x10)
+
+#define LPC32XX_HSU_BREAK_DATA			(1 << 10)
+#define LPC32XX_HSU_ERROR_DATA			(1 << 9)
+#define LPC32XX_HSU_RX_EMPTY			(1 << 8)
+
+#define LPC32XX_HSU_TX_LEV(n)			(((n) >> 8) & 0xFF)
+#define LPC32XX_HSU_RX_LEV(n)			((n) & 0xFF)
+
+#define LPC32XX_HSU_TX_INT_SET			(1 << 6)
+#define LPC32XX_HSU_RX_OE_INT			(1 << 5)
+#define LPC32XX_HSU_BRK_INT			(1 << 4)
+#define LPC32XX_HSU_FE_INT			(1 << 3)
+#define LPC32XX_HSU_RX_TIMEOUT_INT		(1 << 2)
+#define LPC32XX_HSU_RX_TRIG_INT			(1 << 1)
+#define LPC32XX_HSU_TX_INT			(1 << 0)
+
+#define LPC32XX_HSU_HRTS_INV			(1 << 21)
+#define LPC32XX_HSU_HRTS_TRIG_8B		(0x0 << 19)
+#define LPC32XX_HSU_HRTS_TRIG_16B		(0x1 << 19)
+#define LPC32XX_HSU_HRTS_TRIG_32B		(0x2 << 19)
+#define LPC32XX_HSU_HRTS_TRIG_48B		(0x3 << 19)
+#define LPC32XX_HSU_HRTS_EN			(1 << 18)
+#define LPC32XX_HSU_TMO_DISABLED		(0x0 << 16)
+#define LPC32XX_HSU_TMO_INACT_4B		(0x1 << 16)
+#define LPC32XX_HSU_TMO_INACT_8B		(0x2 << 16)
+#define LPC32XX_HSU_TMO_INACT_16B		(0x3 << 16)
+#define LPC32XX_HSU_HCTS_INV			(1 << 15)
+#define LPC32XX_HSU_HCTS_EN			(1 << 14)
+#define LPC32XX_HSU_OFFSET(n)			((n) << 9)
+#define LPC32XX_HSU_BREAK			(1 << 8)
+#define LPC32XX_HSU_ERR_INT_EN			(1 << 7)
+#define LPC32XX_HSU_RX_INT_EN			(1 << 6)
+#define LPC32XX_HSU_TX_INT_EN			(1 << 5)
+#define LPC32XX_HSU_RX_TL1B			(0x0 << 2)
+#define LPC32XX_HSU_RX_TL4B			(0x1 << 2)
+#define LPC32XX_HSU_RX_TL8B			(0x2 << 2)
+#define LPC32XX_HSU_RX_TL16B			(0x3 << 2)
+#define LPC32XX_HSU_RX_TL32B			(0x4 << 2)
+#define LPC32XX_HSU_RX_TL48B			(0x5 << 2)
+#define LPC32XX_HSU_TX_TLEMPTY			(0x0 << 0)
+#define LPC32XX_HSU_TX_TL0B			(0x0 << 0)
+#define LPC32XX_HSU_TX_TL4B			(0x1 << 0)
+#define LPC32XX_HSU_TX_TL8B			(0x2 << 0)
+#define LPC32XX_HSU_TX_TL16B			(0x3 << 0)
+
+#define MODNAME "lpc32xx_hsuart"
+
+struct lpc32xx_hsuart_port {
+	struct uart_port port;
+};
+
+#define FIFO_READ_LIMIT 128
+#define MAX_PORTS 3
+#define LPC32XX_TTY_NAME "ttyTX"
+static struct lpc32xx_hsuart_port lpc32xx_hs_ports[MAX_PORTS];
+
+#ifdef CONFIG_SERIAL_HS_LPC32XX_CONSOLE
+static void wait_for_xmit_empty(struct uart_port *port)
+{
+	unsigned int timeout = 10000;
+
+	do {
+		if (LPC32XX_HSU_TX_LEV(readl(LPC32XX_HSUART_LEVEL(
+							port->membase))) == 0)
+			break;
+		if (--timeout == 0)
+			break;
+		udelay(1);
+	} while (1);
+}
+
+static void wait_for_xmit_ready(struct uart_port *port)
+{
+	unsigned int timeout = 10000;
+
+	while (1) {
+		if (LPC32XX_HSU_TX_LEV(readl(LPC32XX_HSUART_LEVEL(
+							port->membase))) < 32)
+			break;
+		if (--timeout == 0)
+			break;
+		udelay(1);
+	}
+}
+
+static void lpc32xx_hsuart_console_putchar(struct uart_port *port, int ch)
+{
+	wait_for_xmit_ready(port);
+	writel((u32)ch, LPC32XX_HSUART_FIFO(port->membase));
+}
+
+static void lpc32xx_hsuart_console_write(struct console *co, const char *s,
+					 unsigned int count)
+{
+	struct lpc32xx_hsuart_port *up = &lpc32xx_hs_ports[co->index];
+	unsigned long flags;
+	int locked = 1;
+
+	touch_nmi_watchdog();
+	local_irq_save(flags);
+	if (up->port.sysrq)
+		locked = 0;
+	else if (oops_in_progress)
+		locked = spin_trylock(&up->port.lock);
+	else
+		spin_lock(&up->port.lock);
+
+	uart_console_write(&up->port, s, count, lpc32xx_hsuart_console_putchar);
+	wait_for_xmit_empty(&up->port);
+
+	if (locked)
+		spin_unlock(&up->port.lock);
+	local_irq_restore(flags);
+}
+
+static int __init lpc32xx_hsuart_console_setup(struct console *co,
+					       char *options)
+{
+	struct uart_port *port;
+	int baud = 115200;
+	int bits = 8;
+	int parity = 'n';
+	int flow = 'n';
+
+	if (co->index >= MAX_PORTS)
+		co->index = 0;
+
+	port = &lpc32xx_hs_ports[co->index].port;
+	if (!port->membase)
+		return -ENODEV;
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+
+	return uart_set_options(port, co, baud, parity, bits, flow);
+}
+
+static struct uart_driver lpc32xx_hsuart_reg;
+static struct console lpc32xx_hsuart_console = {
+	.name		= LPC32XX_TTY_NAME,
+	.write		= lpc32xx_hsuart_console_write,
+	.device		= uart_console_device,
+	.setup		= lpc32xx_hsuart_console_setup,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+	.data		= &lpc32xx_hsuart_reg,
+};
+
+static int __init lpc32xx_hsuart_console_init(void)
+{
+	register_console(&lpc32xx_hsuart_console);
+	return 0;
+}
+console_initcall(lpc32xx_hsuart_console_init);
+
+#define LPC32XX_HSUART_CONSOLE (&lpc32xx_hsuart_console)
+#else
+#define LPC32XX_HSUART_CONSOLE NULL
+#endif
+
+static struct uart_driver lpc32xx_hs_reg = {
+	.owner		= THIS_MODULE,
+	.driver_name	= MODNAME,
+	.dev_name	= LPC32XX_TTY_NAME,
+	.nr		= MAX_PORTS,
+	.cons		= LPC32XX_HSUART_CONSOLE,
+};
+static int uarts_registered;
+
+static unsigned int __serial_get_clock_div(unsigned long uartclk,
+					   unsigned long rate)
+{
+	u32 div, goodrate, hsu_rate, l_hsu_rate, comprate;
+	u32 rate_diff;
+
+	/* Find the closest divider to get the desired clock rate */
+	div = uartclk / rate;
+	goodrate = hsu_rate = (div / 14) - 1;
+	if (hsu_rate != 0)
+		hsu_rate--;
+
+	/* Tweak divider */
+	l_hsu_rate = hsu_rate + 3;
+	rate_diff = 0xFFFFFFFF;
+
+	while (hsu_rate < l_hsu_rate) {
+		comprate = uartclk / ((hsu_rate + 1) * 14);
+		if (abs(comprate - rate) < rate_diff) {
+			goodrate = hsu_rate;
+			rate_diff = abs(comprate - rate);
+		}
+
+		hsu_rate++;
+	}
+	if (hsu_rate > 0xFF)
+		hsu_rate = 0xFF;
+
+	return goodrate;
+}
+
+static void __serial_uart_flush(struct uart_port *port)
+{
+	u32 tmp;
+	int cnt = 0;
+
+	while ((readl(LPC32XX_HSUART_LEVEL(port->membase)) > 0) &&
+	       (cnt++ < FIFO_READ_LIMIT))
+		tmp = readl(LPC32XX_HSUART_FIFO(port->membase));
+}
+
+static void __serial_lpc32xx_rx(struct uart_port *port)
+{
+	unsigned int tmp, flag;
+	struct tty_struct *tty = tty_port_tty_get(&port->state->port);
+
+	if (!tty) {
+		/* Discard data: no tty available */
+		while (!(readl(LPC32XX_HSUART_FIFO(port->membase)) &
+			 LPC32XX_HSU_RX_EMPTY))
+			;
+
+		return;
+	}
+
+	/* Read data from FIFO and push into terminal */
+	tmp = readl(LPC32XX_HSUART_FIFO(port->membase));
+	while (!(tmp & LPC32XX_HSU_RX_EMPTY)) {
+		flag = TTY_NORMAL;
+		port->icount.rx++;
+
+		if (tmp & LPC32XX_HSU_ERROR_DATA) {
+			/* Framing error */
+			writel(LPC32XX_HSU_FE_INT,
+			       LPC32XX_HSUART_IIR(port->membase));
+			port->icount.frame++;
+			flag = TTY_FRAME;
+			tty_insert_flip_char(tty, 0, TTY_FRAME);
+		}
+
+		tty_insert_flip_char(tty, (tmp & 0xFF), flag);
+
+		tmp = readl(LPC32XX_HSUART_FIFO(port->membase));
+	}
+	tty_flip_buffer_push(tty);
+	tty_kref_put(tty);
+}
+
+static void __serial_lpc32xx_tx(struct uart_port *port)
+{
+	struct circ_buf *xmit = &port->state->xmit;
+	unsigned int tmp;
+
+	if (port->x_char) {
+		writel((u32)port->x_char, LPC32XX_HSUART_FIFO(port->membase));
+		port->icount.tx++;
+		port->x_char = 0;
+		return;
+	}
+
+	if (uart_circ_empty(xmit) || uart_tx_stopped(port))
+		goto exit_tx;
+
+	/* Transfer data */
+	while (LPC32XX_HSU_TX_LEV(readl(
+		LPC32XX_HSUART_LEVEL(port->membase))) < 64) {
+		writel((u32) xmit->buf[xmit->tail],
+		       LPC32XX_HSUART_FIFO(port->membase));
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+		if (uart_circ_empty(xmit))
+			break;
+	}
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(port);
+
+exit_tx:
+	if (uart_circ_empty(xmit)) {
+		tmp = readl(LPC32XX_HSUART_CTRL(port->membase));
+		tmp &= ~LPC32XX_HSU_TX_INT_EN;
+		writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+	}
+}
+
+static irqreturn_t serial_lpc32xx_interrupt(int irq, void *dev_id)
+{
+	struct uart_port *port = dev_id;
+	struct tty_struct *tty = tty_port_tty_get(&port->state->port);
+	u32 status;
+
+	spin_lock(&port->lock);
+
+	/* Read UART status and clear latched interrupts */
+	status = readl(LPC32XX_HSUART_IIR(port->membase));
+
+	if (status & LPC32XX_HSU_BRK_INT) {
+		/* Break received */
+		writel(LPC32XX_HSU_BRK_INT, LPC32XX_HSUART_IIR(port->membase));
+		port->icount.brk++;
+		uart_handle_break(port);
+	}
+
+	/* Framing error */
+	if (status & LPC32XX_HSU_FE_INT)
+		writel(LPC32XX_HSU_FE_INT, LPC32XX_HSUART_IIR(port->membase));
+
+	if (status & LPC32XX_HSU_RX_OE_INT) {
+		/* Receive FIFO overrun */
+		writel(LPC32XX_HSU_RX_OE_INT,
+		       LPC32XX_HSUART_IIR(port->membase));
+		port->icount.overrun++;
+		if (tty) {
+			tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+			tty_schedule_flip(tty);
+		}
+	}
+
+	/* Data received? */
+	if (status & (LPC32XX_HSU_RX_TIMEOUT_INT | LPC32XX_HSU_RX_TRIG_INT)) {
+		__serial_lpc32xx_rx(port);
+		if (tty)
+			tty_flip_buffer_push(tty);
+	}
+
+	/* Transmit data request? */
+	if ((status & LPC32XX_HSU_TX_INT) && (!uart_tx_stopped(port))) {
+		writel(LPC32XX_HSU_TX_INT, LPC32XX_HSUART_IIR(port->membase));
+		__serial_lpc32xx_tx(port);
+	}
+
+	spin_unlock(&port->lock);
+	tty_kref_put(tty);
+
+	return IRQ_HANDLED;
+}
+
+/* port->lock is not held.  */
+static unsigned int serial_lpc32xx_tx_empty(struct uart_port *port)
+{
+	unsigned int ret = 0;
+
+	if (LPC32XX_HSU_TX_LEV(readl(LPC32XX_HSUART_LEVEL(port->membase))) == 0)
+		ret = TIOCSER_TEMT;
+
+	return ret;
+}
+
+/* port->lock held by caller.  */
+static void serial_lpc32xx_set_mctrl(struct uart_port *port,
+				     unsigned int mctrl)
+{
+	/* No signals are supported on HS UARTs */
+}
+
+/* port->lock is held by caller and interrupts are disabled.  */
+static unsigned int serial_lpc32xx_get_mctrl(struct uart_port *port)
+{
+	/* No signals are supported on HS UARTs */
+	return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS;
+}
+
+/* port->lock held by caller.  */
+static void serial_lpc32xx_stop_tx(struct uart_port *port)
+{
+	u32 tmp;
+
+	tmp = readl(LPC32XX_HSUART_CTRL(port->membase));
+	tmp &= ~LPC32XX_HSU_TX_INT_EN;
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+}
+
+/* port->lock held by caller.  */
+static void serial_lpc32xx_start_tx(struct uart_port *port)
+{
+	u32 tmp;
+
+	__serial_lpc32xx_tx(port);
+	tmp = readl(LPC32XX_HSUART_CTRL(port->membase));
+	tmp |= LPC32XX_HSU_TX_INT_EN;
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+}
+
+/* port->lock held by caller.  */
+static void serial_lpc32xx_stop_rx(struct uart_port *port)
+{
+	u32 tmp;
+
+	tmp = readl(LPC32XX_HSUART_CTRL(port->membase));
+	tmp &= ~(LPC32XX_HSU_RX_INT_EN | LPC32XX_HSU_ERR_INT_EN);
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+
+	writel((LPC32XX_HSU_BRK_INT | LPC32XX_HSU_RX_OE_INT |
+		LPC32XX_HSU_FE_INT), LPC32XX_HSUART_IIR(port->membase));
+}
+
+/* port->lock held by caller.  */
+static void serial_lpc32xx_enable_ms(struct uart_port *port)
+{
+	/* Modem status is not supported */
+}
+
+/* port->lock is not held.  */
+static void serial_lpc32xx_break_ctl(struct uart_port *port,
+				     int break_state)
+{
+	unsigned long flags;
+	u32 tmp;
+
+	spin_lock_irqsave(&port->lock, flags);
+	tmp = readl(LPC32XX_HSUART_CTRL(port->membase));
+	if (break_state != 0)
+		tmp |= LPC32XX_HSU_BREAK;
+	else
+		tmp &= ~LPC32XX_HSU_BREAK;
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+/* LPC3250 Errata HSUART.1: Hang workaround via loopback mode on inactivity */
+static void lpc32xx_loopback_set(resource_size_t mapbase, int state)
+{
+	int bit;
+	u32 tmp;
+
+	switch (mapbase) {
+	case LPC32XX_HS_UART1_BASE:
+		bit = 0;
+		break;
+	case LPC32XX_HS_UART2_BASE:
+		bit = 1;
+		break;
+	case LPC32XX_HS_UART7_BASE:
+		bit = 6;
+		break;
+	default:
+		WARN(1, "lpc32xx_hs: Warning: Unknown port at %08x\n", mapbase);
+		return;
+	}
+
+	tmp = readl(LPC32XX_UARTCTL_CLOOP);
+	if (state)
+		tmp |= (1 << bit);
+	else
+		tmp &= ~(1 << bit);
+	writel(tmp, LPC32XX_UARTCTL_CLOOP);
+}
+
+/* port->lock is not held.  */
+static int serial_lpc32xx_startup(struct uart_port *port)
+{
+	int retval;
+	unsigned long flags;
+	u32 tmp;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	__serial_uart_flush(port);
+
+	writel((LPC32XX_HSU_TX_INT | LPC32XX_HSU_FE_INT |
+		LPC32XX_HSU_BRK_INT | LPC32XX_HSU_RX_OE_INT),
+	       LPC32XX_HSUART_IIR(port->membase));
+
+	writel(0xFF, LPC32XX_HSUART_RATE(port->membase));
+
+	/*
+	 * Set receiver timeout, HSU offset of 20, no break, no interrupts,
+	 * and default FIFO trigger levels
+	 */
+	tmp = LPC32XX_HSU_TX_TL8B | LPC32XX_HSU_RX_TL32B |
+		LPC32XX_HSU_OFFSET(20) | LPC32XX_HSU_TMO_INACT_4B;
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+
+	lpc32xx_loopback_set(port->mapbase, 0); /* get out of loopback mode */
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	retval = request_irq(port->irq, serial_lpc32xx_interrupt,
+			     0, MODNAME, port);
+	if (!retval)
+		writel((tmp | LPC32XX_HSU_RX_INT_EN | LPC32XX_HSU_ERR_INT_EN),
+		       LPC32XX_HSUART_CTRL(port->membase));
+
+	return retval;
+}
+
+/* port->lock is not held.  */
+static void serial_lpc32xx_shutdown(struct uart_port *port)
+{
+	u32 tmp;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	tmp = LPC32XX_HSU_TX_TL8B | LPC32XX_HSU_RX_TL32B |
+		LPC32XX_HSU_OFFSET(20) | LPC32XX_HSU_TMO_INACT_4B;
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+
+	lpc32xx_loopback_set(port->mapbase, 1); /* go to loopback mode */
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	free_irq(port->irq, port);
+}
+
+/* port->lock is not held.  */
+static void serial_lpc32xx_set_termios(struct uart_port *port,
+				       struct ktermios *termios,
+				       struct ktermios *old)
+{
+	unsigned long flags;
+	unsigned int baud, quot;
+	u32 tmp;
+
+	/* Always 8-bit, no parity, 1 stop bit */
+	termios->c_cflag &= ~(CSIZE | CSTOPB | PARENB | PARODD);
+	termios->c_cflag |= CS8;
+
+	termios->c_cflag &= ~(HUPCL | CMSPAR | CLOCAL | CRTSCTS);
+
+	baud = uart_get_baud_rate(port, termios, old, 0,
+				  port->uartclk / 14);
+
+	quot = __serial_get_clock_div(port->uartclk, baud);
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	/* Ignore characters? */
+	tmp = readl(LPC32XX_HSUART_CTRL(port->membase));
+	if ((termios->c_cflag & CREAD) == 0)
+		tmp &= ~(LPC32XX_HSU_RX_INT_EN | LPC32XX_HSU_ERR_INT_EN);
+	else
+		tmp |= LPC32XX_HSU_RX_INT_EN | LPC32XX_HSU_ERR_INT_EN;
+	writel(tmp, LPC32XX_HSUART_CTRL(port->membase));
+
+	writel(quot, LPC32XX_HSUART_RATE(port->membase));
+
+	uart_update_timeout(port, termios->c_cflag, baud);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	/* Don't rewrite B0 */
+	if (tty_termios_baud_rate(termios))
+		tty_termios_encode_baud_rate(termios, baud, baud);
+}
+
+static const char *serial_lpc32xx_type(struct uart_port *port)
+{
+	return MODNAME;
+}
+
+static void serial_lpc32xx_release_port(struct uart_port *port)
+{
+	if ((port->iotype == UPIO_MEM32) && (port->mapbase)) {
+		if (port->flags & UPF_IOREMAP) {
+			iounmap(port->membase);
+			port->membase = NULL;
+		}
+
+		release_mem_region(port->mapbase, SZ_4K);
+	}
+}
+
+static int serial_lpc32xx_request_port(struct uart_port *port)
+{
+	int ret = -ENODEV;
+
+	if ((port->iotype == UPIO_MEM32) && (port->mapbase)) {
+		ret = 0;
+
+		if (!request_mem_region(port->mapbase, SZ_4K, MODNAME))
+			ret = -EBUSY;
+		else if (port->flags & UPF_IOREMAP) {
+			port->membase = ioremap(port->mapbase, SZ_4K);
+			if (!port->membase) {
+				release_mem_region(port->mapbase, SZ_4K);
+				ret = -ENOMEM;
+			}
+		}
+	}
+
+	return ret;
+}
+
+static void serial_lpc32xx_config_port(struct uart_port *port, int uflags)
+{
+	int ret;
+
+	ret = serial_lpc32xx_request_port(port);
+	if (ret < 0)
+		return;
+	port->type = PORT_UART00;
+	port->fifosize = 64;
+
+	__serial_uart_flush(port);
+
+	writel((LPC32XX_HSU_TX_INT | LPC32XX_HSU_FE_INT |
+		LPC32XX_HSU_BRK_INT | LPC32XX_HSU_RX_OE_INT),
+	       LPC32XX_HSUART_IIR(port->membase));
+
+	writel(0xFF, LPC32XX_HSUART_RATE(port->membase));
+
+	/* Set receiver timeout, HSU offset of 20, no break, no interrupts,
+	   and default FIFO trigger levels */
+	writel(LPC32XX_HSU_TX_TL8B | LPC32XX_HSU_RX_TL32B |
+	       LPC32XX_HSU_OFFSET(20) | LPC32XX_HSU_TMO_INACT_4B,
+	       LPC32XX_HSUART_CTRL(port->membase));
+}
+
+static int serial_lpc32xx_verify_port(struct uart_port *port,
+				      struct serial_struct *ser)
+{
+	int ret = 0;
+
+	if (ser->type != PORT_UART00)
+		ret = -EINVAL;
+
+	return ret;
+}
+
+static struct uart_ops serial_lpc32xx_pops = {
+	.tx_empty	= serial_lpc32xx_tx_empty,
+	.set_mctrl	= serial_lpc32xx_set_mctrl,
+	.get_mctrl	= serial_lpc32xx_get_mctrl,
+	.stop_tx	= serial_lpc32xx_stop_tx,
+	.start_tx	= serial_lpc32xx_start_tx,
+	.stop_rx	= serial_lpc32xx_stop_rx,
+	.enable_ms	= serial_lpc32xx_enable_ms,
+	.break_ctl	= serial_lpc32xx_break_ctl,
+	.startup	= serial_lpc32xx_startup,
+	.shutdown	= serial_lpc32xx_shutdown,
+	.set_termios	= serial_lpc32xx_set_termios,
+	.type		= serial_lpc32xx_type,
+	.release_port	= serial_lpc32xx_release_port,
+	.request_port	= serial_lpc32xx_request_port,
+	.config_port	= serial_lpc32xx_config_port,
+	.verify_port	= serial_lpc32xx_verify_port,
+};
+
+/*
+ * Register a set of serial devices attached to a platform device
+ */
+static int __devinit serial_hs_lpc32xx_probe(struct platform_device *pdev)
+{
+	struct lpc32xx_hsuart_port *p = &lpc32xx_hs_ports[uarts_registered];
+	int ret = 0;
+	struct resource *res;
+
+	if (uarts_registered >= MAX_PORTS) {
+		dev_err(&pdev->dev,
+			"Error: Number of possible ports exceeded (%d)!\n",
+			uarts_registered + 1);
+		return -ENXIO;
+	}
+
+	memset(p, 0, sizeof(*p));
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev,
+			"Error getting mem resource for HS UART port %d\n",
+			uarts_registered);
+		return -ENXIO;
+	}
+	p->port.mapbase = res->start;
+	p->port.membase = NULL;
+
+	p->port.irq = platform_get_irq(pdev, 0);
+	if (p->port.irq < 0) {
+		dev_err(&pdev->dev, "Error getting irq for HS UART port %d\n",
+			uarts_registered);
+		return p->port.irq;
+	}
+
+	p->port.iotype = UPIO_MEM32;
+	p->port.uartclk = LPC32XX_MAIN_OSC_FREQ;
+	p->port.regshift = 2;
+	p->port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT | UPF_IOREMAP;
+	p->port.dev = &pdev->dev;
+	p->port.ops = &serial_lpc32xx_pops;
+	p->port.line = uarts_registered++;
+	spin_lock_init(&p->port.lock);
+
+	/* send port to loopback mode by default */
+	lpc32xx_loopback_set(p->port.mapbase, 1);
+
+	ret = uart_add_one_port(&lpc32xx_hs_reg, &p->port);
+
+	platform_set_drvdata(pdev, p);
+
+	return ret;
+}
+
+/*
+ * Remove serial ports registered against a platform device.
+ */
+static int __devexit serial_hs_lpc32xx_remove(struct platform_device *pdev)
+{
+	struct lpc32xx_hsuart_port *p = platform_get_drvdata(pdev);
+
+	uart_remove_one_port(&lpc32xx_hs_reg, &p->port);
+
+	return 0;
+}
+
+
+#ifdef CONFIG_PM
+static int serial_hs_lpc32xx_suspend(struct platform_device *pdev,
+				     pm_message_t state)
+{
+	struct lpc32xx_hsuart_port *p = platform_get_drvdata(pdev);
+
+	uart_suspend_port(&lpc32xx_hs_reg, &p->port);
+
+	return 0;
+}
+
+static int serial_hs_lpc32xx_resume(struct platform_device *pdev)
+{
+	struct lpc32xx_hsuart_port *p = platform_get_drvdata(pdev);
+
+	uart_resume_port(&lpc32xx_hs_reg, &p->port);
+
+	return 0;
+}
+#else
+#define serial_hs_lpc32xx_suspend	NULL
+#define serial_hs_lpc32xx_resume	NULL
+#endif
+
+static const struct of_device_id serial_hs_lpc32xx_dt_ids[] = {
+	{ .compatible = "nxp,lpc3220-hsuart" },
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, serial_hs_lpc32xx_dt_ids);
+
+static struct platform_driver serial_hs_lpc32xx_driver = {
+	.probe		= serial_hs_lpc32xx_probe,
+	.remove		= __devexit_p(serial_hs_lpc32xx_remove),
+	.suspend	= serial_hs_lpc32xx_suspend,
+	.resume		= serial_hs_lpc32xx_resume,
+	.driver		= {
+		.name	= MODNAME,
+		.owner	= THIS_MODULE,
+		.of_match_table	= serial_hs_lpc32xx_dt_ids,
+	},
+};
+
+static int __init lpc32xx_hsuart_init(void)
+{
+	int ret;
+
+	ret = uart_register_driver(&lpc32xx_hs_reg);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&serial_hs_lpc32xx_driver);
+	if (ret)
+		uart_unregister_driver(&lpc32xx_hs_reg);
+
+	return ret;
+}
+
+static void __exit lpc32xx_hsuart_exit(void)
+{
+	platform_driver_unregister(&serial_hs_lpc32xx_driver);
+	uart_unregister_driver(&lpc32xx_hs_reg);
+}
+
+module_init(lpc32xx_hsuart_init);
+module_exit(lpc32xx_hsuart_exit);
+
+MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com>");
+MODULE_AUTHOR("Roland Stigge <stigge@antcom.de>");
+MODULE_DESCRIPTION("NXP LPC32XX High Speed UART driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c
index a0703624d5e..b13949ad340 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/m32r_sio.c
@@ -44,8 +44,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
-#define PORT_M32R_BASE	PORT_M32R_SIO
-#define PORT_INDEX(x)	(x - PORT_M32R_BASE + 1)
 #define BAUD_RATE	115200
 
 #include <linux/serial_core.h>
@@ -132,22 +130,6 @@ struct irq_info {
 
 static struct irq_info irq_lists[NR_IRQS];
 
-/*
- * Here we define the default xmit fifo size used for each type of UART.
- */
-static const struct serial_uart_config uart_config[] = {
-	[PORT_UNKNOWN] = {
-		.name			= "unknown",
-		.dfl_xmit_fifo_size	= 1,
-		.flags			= 0,
-	},
-	[PORT_INDEX(PORT_M32R_SIO)] = {
-		.name			= "M32RSIO",
-		.dfl_xmit_fifo_size	= 1,
-		.flags			= 0,
-	},
-};
-
 #ifdef CONFIG_SERIAL_M32R_PLDSIO
 
 #define __sio_in(x) inw((unsigned long)(x))
@@ -907,8 +889,7 @@ static void m32r_sio_config_port(struct uart_port *port, int unused)
 
 	spin_lock_irqsave(&up->port.lock, flags);
 
-	up->port.type = (PORT_M32R_SIO - PORT_M32R_BASE + 1);
-	up->port.fifosize = uart_config[up->port.type].dfl_xmit_fifo_size;
+	up->port.fifosize = 1;
 
 	spin_unlock_irqrestore(&up->port.lock, flags);
 }
@@ -916,23 +897,11 @@ static void m32r_sio_config_port(struct uart_port *port, int unused)
 static int
 m32r_sio_verify_port(struct uart_port *port, struct serial_struct *ser)
 {
-	if (ser->irq >= nr_irqs || ser->irq < 0 ||
-	    ser->baud_base < 9600 || ser->type < PORT_UNKNOWN ||
-	    ser->type >= ARRAY_SIZE(uart_config))
+	if (ser->irq >= nr_irqs || ser->irq < 0 || ser->baud_base < 9600)
 		return -EINVAL;
 	return 0;
 }
 
-static const char *
-m32r_sio_type(struct uart_port *port)
-{
-	int type = port->type;
-
-	if (type >= ARRAY_SIZE(uart_config))
-		type = 0;
-	return uart_config[type].name;
-}
-
 static struct uart_ops m32r_sio_pops = {
 	.tx_empty	= m32r_sio_tx_empty,
 	.set_mctrl	= m32r_sio_set_mctrl,
@@ -946,7 +915,6 @@ static struct uart_ops m32r_sio_pops = {
 	.shutdown	= m32r_sio_shutdown,
 	.set_termios	= m32r_sio_set_termios,
 	.pm		= m32r_sio_pm,
-	.type		= m32r_sio_type,
 	.release_port	= m32r_sio_release_port,
 	.request_port	= m32r_sio_request_port,
 	.config_port	= m32r_sio_config_port,
diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c
index b4902b99cfd..0f24486be53 100644
--- a/drivers/tty/serial/max3100.c
+++ b/drivers/tty/serial/max3100.c
@@ -827,14 +827,16 @@ static int __devexit max3100_remove(struct spi_device *spi)
 
 	/* find out the index for the chip we are removing */
 	for (i = 0; i < MAX_MAX3100; i++)
-		if (max3100s[i] == s)
+		if (max3100s[i] == s) {
+			dev_dbg(&spi->dev, "%s: removing port %d\n", __func__, i);
+			uart_remove_one_port(&max3100_uart_driver, &max3100s[i]->port);
+			kfree(max3100s[i]);
+			max3100s[i] = NULL;
 			break;
+		}
 
-	dev_dbg(&spi->dev, "%s: removing port %d\n", __func__, i);
-	uart_remove_one_port(&max3100_uart_driver, &max3100s[i]->port);
-	kfree(max3100s[i]);
-	max3100s[i] = NULL;
-
+	WARN_ON(i == MAX_MAX3100);
+	
 	/* check if this is the last chip we have */
 	for (i = 0; i < MAX_MAX3100; i++)
 		if (max3100s[i]) {
@@ -910,17 +912,7 @@ static struct spi_driver max3100_driver = {
 	.resume		= max3100_resume,
 };
 
-static int __init max3100_init(void)
-{
-	return spi_register_driver(&max3100_driver);
-}
-module_init(max3100_init);
-
-static void __exit max3100_exit(void)
-{
-	spi_unregister_driver(&max3100_driver);
-}
-module_exit(max3100_exit);
+module_spi_driver(max3100_driver);
 
 MODULE_DESCRIPTION("MAX3100 driver");
 MODULE_AUTHOR("Christian Pellegrin <chripell@evolware.org>");
diff --git a/drivers/tty/serial/max3107.c b/drivers/tty/serial/max3107.c
deleted file mode 100644
index 17c7ba805d9..00000000000
--- a/drivers/tty/serial/max3107.c
+++ /dev/null
@@ -1,1215 +0,0 @@
-/*
- *  max3107.c - spi uart protocol driver for Maxim 3107
- *  Based on max3100.c
- *	by Christian Pellegrin <chripell@evolware.org>
- *  and	max3110.c
- *	by Feng Tang <feng.tang@intel.com>
- *
- *  Copyright (C) Aavamobile 2009
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/freezer.h>
-#include <linux/module.h>
-#include "max3107.h"
-
-static const struct baud_table brg26_ext[] = {
-	{ 300,    MAX3107_BRG26_B300 },
-	{ 600,    MAX3107_BRG26_B600 },
-	{ 1200,   MAX3107_BRG26_B1200 },
-	{ 2400,   MAX3107_BRG26_B2400 },
-	{ 4800,   MAX3107_BRG26_B4800 },
-	{ 9600,   MAX3107_BRG26_B9600 },
-	{ 19200,  MAX3107_BRG26_B19200 },
-	{ 57600,  MAX3107_BRG26_B57600 },
-	{ 115200, MAX3107_BRG26_B115200 },
-	{ 230400, MAX3107_BRG26_B230400 },
-	{ 460800, MAX3107_BRG26_B460800 },
-	{ 921600, MAX3107_BRG26_B921600 },
-	{ 0, 0 }
-};
-
-static const struct baud_table brg13_int[] = {
-	{ 300,    MAX3107_BRG13_IB300 },
-	{ 600,    MAX3107_BRG13_IB600 },
-	{ 1200,   MAX3107_BRG13_IB1200 },
-	{ 2400,   MAX3107_BRG13_IB2400 },
-	{ 4800,   MAX3107_BRG13_IB4800 },
-	{ 9600,   MAX3107_BRG13_IB9600 },
-	{ 19200,  MAX3107_BRG13_IB19200 },
-	{ 57600,  MAX3107_BRG13_IB57600 },
-	{ 115200, MAX3107_BRG13_IB115200 },
-	{ 230400, MAX3107_BRG13_IB230400 },
-	{ 460800, MAX3107_BRG13_IB460800 },
-	{ 921600, MAX3107_BRG13_IB921600 },
-	{ 0, 0 }
-};
-
-static u32 get_new_brg(int baud, struct max3107_port *s)
-{
-	int i;
-	const struct baud_table *baud_tbl = s->baud_tbl;
-
-	for (i = 0; i < 13; i++) {
-		if (baud == baud_tbl[i].baud)
-			return baud_tbl[i].new_brg;
-	}
-
-	return 0;
-}
-
-/* Perform SPI transfer for write/read of device register(s) */
-int max3107_rw(struct max3107_port *s, u8 *tx, u8 *rx, int len)
-{
-	struct spi_message spi_msg;
-	struct spi_transfer spi_xfer;
-
-	/* Initialize SPI ,message */
-	spi_message_init(&spi_msg);
-
-	/* Initialize SPI transfer */
-	memset(&spi_xfer, 0, sizeof spi_xfer);
-	spi_xfer.len = len;
-	spi_xfer.tx_buf = tx;
-	spi_xfer.rx_buf = rx;
-	spi_xfer.speed_hz = MAX3107_SPI_SPEED;
-
-	/* Add SPI transfer to SPI message */
-	spi_message_add_tail(&spi_xfer, &spi_msg);
-
-#ifdef DBG_TRACE_SPI_DATA
-	{
-		int i;
-		pr_info("tx len %d:\n", spi_xfer.len);
-		for (i = 0 ; i < spi_xfer.len && i < 32 ; i++)
-			pr_info(" %x", ((u8 *)spi_xfer.tx_buf)[i]);
-		pr_info("\n");
-	}
-#endif
-
-	/* Perform synchronous SPI transfer */
-	if (spi_sync(s->spi, &spi_msg)) {
-		dev_err(&s->spi->dev, "spi_sync failure\n");
-		return -EIO;
-	}
-
-#ifdef DBG_TRACE_SPI_DATA
-	if (spi_xfer.rx_buf) {
-		int i;
-		pr_info("rx len %d:\n", spi_xfer.len);
-		for (i = 0 ; i < spi_xfer.len && i < 32 ; i++)
-			pr_info(" %x", ((u8 *)spi_xfer.rx_buf)[i]);
-		pr_info("\n");
-	}
-#endif
-	return 0;
-}
-EXPORT_SYMBOL_GPL(max3107_rw);
-
-/* Puts received data to circular buffer */
-static void put_data_to_circ_buf(struct max3107_port *s, unsigned char *data,
-					int len)
-{
-	struct uart_port *port = &s->port;
-	struct tty_struct *tty;
-
-	if (!port->state)
-		return;
-
-	tty = port->state->port.tty;
-	if (!tty)
-		return;
-
-	/* Insert received data */
-	tty_insert_flip_string(tty, data, len);
-	/* Update RX counter */
-	port->icount.rx += len;
-}
-
-/* Handle data receiving */
-static void max3107_handlerx(struct max3107_port *s, u16 rxlvl)
-{
-	int i;
-	int j;
-	int len;				/* SPI transfer buffer length */
-	u16 *buf;
-	u8 *valid_str;
-
-	if (!s->rx_enabled)
-		/* RX is disabled */
-		return;
-
-	if (rxlvl == 0) {
-		/* RX fifo is empty */
-		return;
-	} else if (rxlvl >= MAX3107_RX_FIFO_SIZE) {
-		dev_warn(&s->spi->dev, "Possible RX FIFO overrun %d\n", rxlvl);
-		/* Ensure sanity of RX level */
-		rxlvl = MAX3107_RX_FIFO_SIZE;
-	}
-	if ((s->rxbuf == 0) || (s->rxstr == 0)) {
-		dev_warn(&s->spi->dev, "Rx buffer/str isn't ready\n");
-		return;
-	}
-	buf = s->rxbuf;
-	valid_str = s->rxstr;
-	while (rxlvl) {
-		pr_debug("rxlvl %d\n", rxlvl);
-		/* Clear buffer */
-		memset(buf, 0, sizeof(u16) * (MAX3107_RX_FIFO_SIZE + 2));
-		len = 0;
-		if (s->irqen_reg & MAX3107_IRQ_RXFIFO_BIT) {
-			/* First disable RX FIFO interrupt */
-			pr_debug("Disabling RX INT\n");
-			buf[0] = (MAX3107_WRITE_BIT | MAX3107_IRQEN_REG);
-			s->irqen_reg &= ~MAX3107_IRQ_RXFIFO_BIT;
-			buf[0] |= s->irqen_reg;
-			len++;
-		}
-		/* Just increase the length by amount of words in FIFO since
-		 * buffer was zeroed and SPI transfer of 0x0000 means reading
-		 * from RX FIFO
-		 */
-		len += rxlvl;
-		/* Append RX level query */
-		buf[len] = MAX3107_RXFIFOLVL_REG;
-		len++;
-
-		/* Perform the SPI transfer */
-		if (max3107_rw(s, (u8 *)buf, (u8 *)buf, len * 2)) {
-			dev_err(&s->spi->dev, "SPI transfer for RX h failed\n");
-			return;
-		}
-
-		/* Skip RX FIFO interrupt disabling word if it was added */
-		j = ((len - 1) - rxlvl);
-		/* Read received words */
-		for (i = 0; i < rxlvl; i++, j++)
-			valid_str[i] = (u8)buf[j];
-		put_data_to_circ_buf(s, valid_str, rxlvl);
-		/* Get new RX level */
-		rxlvl = (buf[len - 1] & MAX3107_SPI_RX_DATA_MASK);
-	}
-
-	if (s->rx_enabled) {
-		/* RX still enabled, re-enable RX FIFO interrupt */
-		pr_debug("Enabling RX INT\n");
-		buf[0] = (MAX3107_WRITE_BIT | MAX3107_IRQEN_REG);
-		s->irqen_reg |= MAX3107_IRQ_RXFIFO_BIT;
-		buf[0] |= s->irqen_reg;
-		if (max3107_rw(s, (u8 *)buf, NULL, 2))
-			dev_err(&s->spi->dev, "RX FIFO INT enabling failed\n");
-	}
-
-	/* Push the received data to receivers */
-	if (s->port.state->port.tty)
-		tty_flip_buffer_push(s->port.state->port.tty);
-}
-
-
-/* Handle data sending */
-static void max3107_handletx(struct max3107_port *s)
-{
-	struct circ_buf *xmit = &s->port.state->xmit;
-	int i;
-	unsigned long flags;
-	int len;				/* SPI transfer buffer length */
-	u16 *buf;
-
-	if (!s->tx_fifo_empty)
-		/* Don't send more data before previous data is sent */
-		return;
-
-	if (uart_circ_empty(xmit) || uart_tx_stopped(&s->port))
-		/* No data to send or TX is stopped */
-		return;
-
-	if (!s->txbuf) {
-		dev_warn(&s->spi->dev, "Txbuf isn't ready\n");
-		return;
-	}
-	buf = s->txbuf;
-	/* Get length of data pending in circular buffer */
-	len = uart_circ_chars_pending(xmit);
-	if (len) {
-		/* Limit to size of TX FIFO */
-		if (len > MAX3107_TX_FIFO_SIZE)
-			len = MAX3107_TX_FIFO_SIZE;
-
-		pr_debug("txlen %d\n", len);
-
-		/* Update TX counter */
-		s->port.icount.tx += len;
-
-		/* TX FIFO will no longer be empty */
-		s->tx_fifo_empty = 0;
-
-		i = 0;
-		if (s->irqen_reg & MAX3107_IRQ_TXEMPTY_BIT) {
-			/* First disable TX empty interrupt */
-			pr_debug("Disabling TE INT\n");
-			buf[i] = (MAX3107_WRITE_BIT | MAX3107_IRQEN_REG);
-			s->irqen_reg &= ~MAX3107_IRQ_TXEMPTY_BIT;
-			buf[i] |= s->irqen_reg;
-			i++;
-			len++;
-		}
-		/* Add data to send */
-		spin_lock_irqsave(&s->port.lock, flags);
-		for ( ; i < len ; i++) {
-			buf[i] = (MAX3107_WRITE_BIT | MAX3107_THR_REG);
-			buf[i] |= ((u16)xmit->buf[xmit->tail] &
-						MAX3107_SPI_TX_DATA_MASK);
-			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		}
-		spin_unlock_irqrestore(&s->port.lock, flags);
-		if (!(s->irqen_reg & MAX3107_IRQ_TXEMPTY_BIT)) {
-			/* Enable TX empty interrupt */
-			pr_debug("Enabling TE INT\n");
-			buf[i] = (MAX3107_WRITE_BIT | MAX3107_IRQEN_REG);
-			s->irqen_reg |= MAX3107_IRQ_TXEMPTY_BIT;
-			buf[i] |= s->irqen_reg;
-			i++;
-			len++;
-		}
-		if (!s->tx_enabled) {
-			/* Enable TX */
-			pr_debug("Enable TX\n");
-			buf[i] = (MAX3107_WRITE_BIT | MAX3107_MODE1_REG);
-			spin_lock_irqsave(&s->data_lock, flags);
-			s->mode1_reg &= ~MAX3107_MODE1_TXDIS_BIT;
-			buf[i] |= s->mode1_reg;
-			spin_unlock_irqrestore(&s->data_lock, flags);
-			s->tx_enabled = 1;
-			i++;
-			len++;
-		}
-
-		/* Perform the SPI transfer */
-		if (max3107_rw(s, (u8 *)buf, NULL, len*2)) {
-			dev_err(&s->spi->dev,
-				"SPI transfer TX handling failed\n");
-			return;
-		}
-	}
-
-	/* Indicate wake up if circular buffer is getting low on data */
-	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-		uart_write_wakeup(&s->port);
-
-}
-
-/* Handle interrupts
- * Also reads and returns current RX FIFO level
- */
-static u16 handle_interrupt(struct max3107_port *s)
-{
-	u16 buf[4];	/* Buffer for SPI transfers */
-	u8 irq_status;
-	u16 rx_level;
-	unsigned long flags;
-
-	/* Read IRQ status register */
-	buf[0] = MAX3107_IRQSTS_REG;
-	/* Read status IRQ status register */
-	buf[1] = MAX3107_STS_IRQSTS_REG;
-	/* Read LSR IRQ status register */
-	buf[2] = MAX3107_LSR_IRQSTS_REG;
-	/* Query RX level */
-	buf[3] = MAX3107_RXFIFOLVL_REG;
-
-	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 8)) {
-		dev_err(&s->spi->dev,
-			"SPI transfer for INTR handling failed\n");
-		return 0;
-	}
-
-	irq_status = (u8)buf[0];
-	pr_debug("IRQSTS %x\n", irq_status);
-	rx_level = (buf[3] & MAX3107_SPI_RX_DATA_MASK);
-
-	if (irq_status & MAX3107_IRQ_LSR_BIT) {
-		/* LSR interrupt */
-		if (buf[2] & MAX3107_LSR_RXTO_BIT)
-			/* RX timeout interrupt,
-			 * handled by normal RX handling
-			 */
-			pr_debug("RX TO INT\n");
-	}
-
-	if (irq_status & MAX3107_IRQ_TXEMPTY_BIT) {
-		/* Tx empty interrupt,
-		 * disable TX and set tx_fifo_empty flag
-		 */
-		pr_debug("TE INT, disabling TX\n");
-		buf[0] = (MAX3107_WRITE_BIT | MAX3107_MODE1_REG);
-		spin_lock_irqsave(&s->data_lock, flags);
-		s->mode1_reg |= MAX3107_MODE1_TXDIS_BIT;
-		buf[0] |= s->mode1_reg;
-		spin_unlock_irqrestore(&s->data_lock, flags);
-		if (max3107_rw(s, (u8 *)buf, NULL, 2))
-			dev_err(&s->spi->dev, "SPI transfer TX dis failed\n");
-		s->tx_enabled = 0;
-		s->tx_fifo_empty = 1;
-	}
-
-	if (irq_status & MAX3107_IRQ_RXFIFO_BIT)
-		/* RX FIFO interrupt,
-		 * handled by normal RX handling
-		 */
-		pr_debug("RFIFO INT\n");
-
-	/* Return RX level */
-	return rx_level;
-}
-
-/* Trigger work thread*/
-static void max3107_dowork(struct max3107_port *s)
-{
-	if (!work_pending(&s->work) && !freezing(current) && !s->suspended)
-		queue_work(s->workqueue, &s->work);
-	else
-		dev_warn(&s->spi->dev, "interrup isn't serviced normally!\n");
-}
-
-/* Work thread */
-static void max3107_work(struct work_struct *w)
-{
-	struct max3107_port *s = container_of(w, struct max3107_port, work);
-	u16 rxlvl = 0;
-	int len;	/* SPI transfer buffer length */
-	u16 buf[5];	/* Buffer for SPI transfers */
-	unsigned long flags;
-
-	/* Start by reading current RX FIFO level */
-	buf[0] = MAX3107_RXFIFOLVL_REG;
-	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
-		dev_err(&s->spi->dev, "SPI transfer RX lev failed\n");
-		rxlvl = 0;
-	} else {
-		rxlvl = (buf[0] & MAX3107_SPI_RX_DATA_MASK);
-	}
-
-	do {
-		pr_debug("rxlvl %d\n", rxlvl);
-
-		/* Handle RX */
-		max3107_handlerx(s, rxlvl);
-		rxlvl = 0;
-
-		if (s->handle_irq) {
-			/* Handle pending interrupts
-			 * We also get new RX FIFO level since new data may
-			 * have been received while pushing received data to
-			 * receivers
-			 */
-			s->handle_irq = 0;
-			rxlvl = handle_interrupt(s);
-		}
-
-		/* Handle TX */
-		max3107_handletx(s);
-
-		/* Handle configuration changes */
-		len = 0;
-		spin_lock_irqsave(&s->data_lock, flags);
-		if (s->mode1_commit) {
-			pr_debug("mode1_commit\n");
-			buf[len] = (MAX3107_WRITE_BIT | MAX3107_MODE1_REG);
-			buf[len++] |= s->mode1_reg;
-			s->mode1_commit = 0;
-		}
-		if (s->lcr_commit) {
-			pr_debug("lcr_commit\n");
-			buf[len] = (MAX3107_WRITE_BIT | MAX3107_LCR_REG);
-			buf[len++] |= s->lcr_reg;
-			s->lcr_commit = 0;
-		}
-		if (s->brg_commit) {
-			pr_debug("brg_commit\n");
-			buf[len] = (MAX3107_WRITE_BIT | MAX3107_BRGDIVMSB_REG);
-			buf[len++] |= ((s->brg_cfg >> 16) &
-						MAX3107_SPI_TX_DATA_MASK);
-			buf[len] = (MAX3107_WRITE_BIT | MAX3107_BRGDIVLSB_REG);
-			buf[len++] |= ((s->brg_cfg >> 8) &
-						MAX3107_SPI_TX_DATA_MASK);
-			buf[len] = (MAX3107_WRITE_BIT | MAX3107_BRGCFG_REG);
-			buf[len++] |= ((s->brg_cfg) & 0xff);
-			s->brg_commit = 0;
-		}
-		spin_unlock_irqrestore(&s->data_lock, flags);
-
-		if (len > 0) {
-			if (max3107_rw(s, (u8 *)buf, NULL, len * 2))
-				dev_err(&s->spi->dev,
-					"SPI transfer config failed\n");
-		}
-
-		/* Reloop if interrupt handling indicated data in RX FIFO */
-	} while (rxlvl);
-
-}
-
-/* Set sleep mode */
-static void max3107_set_sleep(struct max3107_port *s, int mode)
-{
-	u16 buf[1];	/* Buffer for SPI transfer */
-	unsigned long flags;
-	pr_debug("enter, mode %d\n", mode);
-
-	buf[0] = (MAX3107_WRITE_BIT | MAX3107_MODE1_REG);
-	spin_lock_irqsave(&s->data_lock, flags);
-	switch (mode) {
-	case MAX3107_DISABLE_FORCED_SLEEP:
-			s->mode1_reg &= ~MAX3107_MODE1_FORCESLEEP_BIT;
-			break;
-	case MAX3107_ENABLE_FORCED_SLEEP:
-			s->mode1_reg |= MAX3107_MODE1_FORCESLEEP_BIT;
-			break;
-	case MAX3107_DISABLE_AUTOSLEEP:
-			s->mode1_reg &= ~MAX3107_MODE1_AUTOSLEEP_BIT;
-			break;
-	case MAX3107_ENABLE_AUTOSLEEP:
-			s->mode1_reg |= MAX3107_MODE1_AUTOSLEEP_BIT;
-			break;
-	default:
-		spin_unlock_irqrestore(&s->data_lock, flags);
-		dev_warn(&s->spi->dev, "invalid sleep mode\n");
-		return;
-	}
-	buf[0] |= s->mode1_reg;
-	spin_unlock_irqrestore(&s->data_lock, flags);
-
-	if (max3107_rw(s, (u8 *)buf, NULL, 2))
-		dev_err(&s->spi->dev, "SPI transfer sleep mode failed\n");
-
-	if (mode == MAX3107_DISABLE_AUTOSLEEP ||
-			mode == MAX3107_DISABLE_FORCED_SLEEP)
-		msleep(MAX3107_WAKEUP_DELAY);
-}
-
-/* Perform full register initialization */
-static void max3107_register_init(struct max3107_port *s)
-{
-	u16 buf[11];	/* Buffer for SPI transfers */
-
-	/* 1. Configure baud rate, 9600 as default */
-	s->baud = 9600;
-	/* the below is default*/
-	if (s->ext_clk) {
-		s->brg_cfg = MAX3107_BRG26_B9600;
-		s->baud_tbl = (struct baud_table *)brg26_ext;
-	} else {
-		s->brg_cfg = MAX3107_BRG13_IB9600;
-		s->baud_tbl = (struct baud_table *)brg13_int;
-	}
-
-	if (s->pdata->init)
-		s->pdata->init(s);
-
-	buf[0] = (MAX3107_WRITE_BIT | MAX3107_BRGDIVMSB_REG)
-		| ((s->brg_cfg >> 16) & MAX3107_SPI_TX_DATA_MASK);
-	buf[1] = (MAX3107_WRITE_BIT | MAX3107_BRGDIVLSB_REG)
-		| ((s->brg_cfg >> 8) & MAX3107_SPI_TX_DATA_MASK);
-	buf[2] = (MAX3107_WRITE_BIT | MAX3107_BRGCFG_REG)
-		| ((s->brg_cfg) & 0xff);
-
-	/* 2. Configure LCR register, 8N1 mode by default */
-	s->lcr_reg = MAX3107_LCR_WORD_LEN_8;
-	buf[3] = (MAX3107_WRITE_BIT | MAX3107_LCR_REG)
-		| s->lcr_reg;
-
-	/* 3. Configure MODE 1 register */
-	s->mode1_reg = 0;
-	/* Enable IRQ pin */
-	s->mode1_reg |= MAX3107_MODE1_IRQSEL_BIT;
-	/* Disable TX */
-	s->mode1_reg |= MAX3107_MODE1_TXDIS_BIT;
-	s->tx_enabled = 0;
-	/* RX is enabled */
-	s->rx_enabled = 1;
-	buf[4] = (MAX3107_WRITE_BIT | MAX3107_MODE1_REG)
-		| s->mode1_reg;
-
-	/* 4. Configure MODE 2 register */
-	buf[5] = (MAX3107_WRITE_BIT | MAX3107_MODE2_REG);
-	if (s->loopback) {
-		/* Enable loopback */
-		buf[5] |= MAX3107_MODE2_LOOPBACK_BIT;
-	}
-	/* Reset FIFOs */
-	buf[5] |= MAX3107_MODE2_FIFORST_BIT;
-	s->tx_fifo_empty = 1;
-
-	/* 5. Configure FIFO trigger level register */
-	buf[6] = (MAX3107_WRITE_BIT | MAX3107_FIFOTRIGLVL_REG);
-	/* RX FIFO trigger for 16 words, TX FIFO trigger not used */
-	buf[6] |= (MAX3107_FIFOTRIGLVL_RX(16) | MAX3107_FIFOTRIGLVL_TX(0));
-
-	/* 6. Configure flow control levels */
-	buf[7] = (MAX3107_WRITE_BIT | MAX3107_FLOWLVL_REG);
-	/* Flow control halt level 96, resume level 48 */
-	buf[7] |= (MAX3107_FLOWLVL_RES(48) | MAX3107_FLOWLVL_HALT(96));
-
-	/* 7. Configure flow control */
-	buf[8] = (MAX3107_WRITE_BIT | MAX3107_FLOWCTRL_REG);
-	/* Enable auto CTS and auto RTS flow control */
-	buf[8] |= (MAX3107_FLOWCTRL_AUTOCTS_BIT | MAX3107_FLOWCTRL_AUTORTS_BIT);
-
-	/* 8. Configure RX timeout register */
-	buf[9] = (MAX3107_WRITE_BIT | MAX3107_RXTO_REG);
-	/* Timeout after 48 character intervals */
-	buf[9] |= 0x0030;
-
-	/* 9. Configure LSR interrupt enable register */
-	buf[10] = (MAX3107_WRITE_BIT | MAX3107_LSR_IRQEN_REG);
-	/* Enable RX timeout interrupt */
-	buf[10] |= MAX3107_LSR_RXTO_BIT;
-
-	/* Perform SPI transfer */
-	if (max3107_rw(s, (u8 *)buf, NULL, 22))
-		dev_err(&s->spi->dev, "SPI transfer for init failed\n");
-
-	/* 10. Clear IRQ status register by reading it */
-	buf[0] = MAX3107_IRQSTS_REG;
-
-	/* 11. Configure interrupt enable register */
-	/* Enable LSR interrupt */
-	s->irqen_reg = MAX3107_IRQ_LSR_BIT;
-	/* Enable RX FIFO interrupt */
-	s->irqen_reg |= MAX3107_IRQ_RXFIFO_BIT;
-	buf[1] = (MAX3107_WRITE_BIT | MAX3107_IRQEN_REG)
-		| s->irqen_reg;
-
-	/* 12. Clear FIFO reset that was set in step 6 */
-	buf[2] = (MAX3107_WRITE_BIT | MAX3107_MODE2_REG);
-	if (s->loopback) {
-		/* Keep loopback enabled */
-		buf[2] |= MAX3107_MODE2_LOOPBACK_BIT;
-	}
-
-	/* Perform SPI transfer */
-	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 6))
-		dev_err(&s->spi->dev, "SPI transfer for init failed\n");
-
-}
-
-/* IRQ handler */
-static irqreturn_t max3107_irq(int irqno, void *dev_id)
-{
-	struct max3107_port *s = dev_id;
-
-	if (irqno != s->spi->irq) {
-		/* Unexpected IRQ */
-		return IRQ_NONE;
-	}
-
-	/* Indicate irq */
-	s->handle_irq = 1;
-
-	/* Trigger work thread */
-	max3107_dowork(s);
-
-	return IRQ_HANDLED;
-}
-
-/* HW suspension function
- *
- * Currently autosleep is used to decrease current consumption, alternative
- * approach would be to set the chip to reset mode if UART is not being
- * used but that would mess the GPIOs
- *
- */
-void max3107_hw_susp(struct max3107_port *s, int suspend)
-{
-	pr_debug("enter, suspend %d\n", suspend);
-
-	if (suspend) {
-		/* Suspend requested,
-		 * enable autosleep to decrease current consumption
-		 */
-		s->suspended = 1;
-		max3107_set_sleep(s, MAX3107_ENABLE_AUTOSLEEP);
-	} else {
-		/* Resume requested,
-		 * disable autosleep
-		 */
-		s->suspended = 0;
-		max3107_set_sleep(s, MAX3107_DISABLE_AUTOSLEEP);
-	}
-}
-EXPORT_SYMBOL_GPL(max3107_hw_susp);
-
-/* Modem status IRQ enabling */
-static void max3107_enable_ms(struct uart_port *port)
-{
-	/* Modem status not supported */
-}
-
-/* Data send function */
-static void max3107_start_tx(struct uart_port *port)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-
-	/* Trigger work thread for sending data */
-	max3107_dowork(s);
-}
-
-/* Function for checking that there is no pending transfers */
-static unsigned int max3107_tx_empty(struct uart_port *port)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-
-	pr_debug("returning %d\n",
-		  (s->tx_fifo_empty && uart_circ_empty(&s->port.state->xmit)));
-	return s->tx_fifo_empty && uart_circ_empty(&s->port.state->xmit);
-}
-
-/* Function for stopping RX */
-static void max3107_stop_rx(struct uart_port *port)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-	unsigned long flags;
-
-	/* Set RX disabled in MODE 1 register */
-	spin_lock_irqsave(&s->data_lock, flags);
-	s->mode1_reg |= MAX3107_MODE1_RXDIS_BIT;
-	s->mode1_commit = 1;
-	spin_unlock_irqrestore(&s->data_lock, flags);
-	/* Set RX disabled */
-	s->rx_enabled = 0;
-	/* Trigger work thread for doing the actual configuration change */
-	max3107_dowork(s);
-}
-
-/* Function for returning control pin states */
-static unsigned int max3107_get_mctrl(struct uart_port *port)
-{
-	/* DCD and DSR are not wired and CTS/RTS is handled automatically
-	 * so just indicate DSR and CAR asserted
-	 */
-	return TIOCM_DSR | TIOCM_CAR;
-}
-
-/* Function for setting control pin states */
-static void max3107_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
-	/* DCD and DSR are not wired and CTS/RTS is hadnled automatically
-	 * so do nothing
-	 */
-}
-
-/* Function for configuring UART parameters */
-static void max3107_set_termios(struct uart_port *port,
-				struct ktermios *termios,
-				struct ktermios *old)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-	struct tty_struct *tty;
-	int baud;
-	u16 new_lcr = 0;
-	u32 new_brg = 0;
-	unsigned long flags;
-
-	if (!port->state)
-		return;
-
-	tty = port->state->port.tty;
-	if (!tty)
-		return;
-
-	/* Get new LCR register values */
-	/* Word size */
-	if ((termios->c_cflag & CSIZE) == CS7)
-		new_lcr |= MAX3107_LCR_WORD_LEN_7;
-	else
-		new_lcr |= MAX3107_LCR_WORD_LEN_8;
-
-	/* Parity */
-	if (termios->c_cflag & PARENB) {
-		new_lcr |= MAX3107_LCR_PARITY_BIT;
-		if (!(termios->c_cflag & PARODD))
-			new_lcr |= MAX3107_LCR_EVENPARITY_BIT;
-	}
-
-	/* Stop bits */
-	if (termios->c_cflag & CSTOPB) {
-		/* 2 stop bits */
-		new_lcr |= MAX3107_LCR_STOPLEN_BIT;
-	}
-
-	/* Mask termios capabilities we don't support */
-	termios->c_cflag &= ~CMSPAR;
-
-	/* Set status ignore mask */
-	s->port.ignore_status_mask = 0;
-	if (termios->c_iflag & IGNPAR)
-		s->port.ignore_status_mask |= MAX3107_ALL_ERRORS;
-
-	/* Set low latency to immediately handle pushed data */
-	s->port.state->port.tty->low_latency = 1;
-
-	/* Get new baud rate generator configuration */
-	baud = tty_get_baud_rate(tty);
-
-	spin_lock_irqsave(&s->data_lock, flags);
-	new_brg = get_new_brg(baud, s);
-	/* if can't find the corrent config, use previous */
-	if (!new_brg) {
-		baud = s->baud;
-		new_brg = s->brg_cfg;
-	}
-	spin_unlock_irqrestore(&s->data_lock, flags);
-	tty_termios_encode_baud_rate(termios, baud, baud);
-	s->baud = baud;
-
-	/* Update timeout according to new baud rate */
-	uart_update_timeout(port, termios->c_cflag, baud);
-
-	spin_lock_irqsave(&s->data_lock, flags);
-	if (s->lcr_reg != new_lcr) {
-		s->lcr_reg = new_lcr;
-		s->lcr_commit = 1;
-	}
-	if (s->brg_cfg != new_brg) {
-		s->brg_cfg = new_brg;
-		s->brg_commit = 1;
-	}
-	spin_unlock_irqrestore(&s->data_lock, flags);
-
-	/* Trigger work thread for doing the actual configuration change */
-	max3107_dowork(s);
-}
-
-/* Port shutdown function */
-static void max3107_shutdown(struct uart_port *port)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-
-	if (s->suspended && s->pdata->hw_suspend)
-		s->pdata->hw_suspend(s, 0);
-
-	/* Free the interrupt */
-	free_irq(s->spi->irq, s);
-
-	if (s->workqueue) {
-		/* Flush and destroy work queue */
-		flush_workqueue(s->workqueue);
-		destroy_workqueue(s->workqueue);
-		s->workqueue = NULL;
-	}
-
-	/* Suspend HW */
-	if (s->pdata->hw_suspend)
-		s->pdata->hw_suspend(s, 1);
-}
-
-/* Port startup function */
-static int max3107_startup(struct uart_port *port)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-
-	/* Initialize work queue */
-	s->workqueue = create_freezable_workqueue("max3107");
-	if (!s->workqueue) {
-		dev_err(&s->spi->dev, "Workqueue creation failed\n");
-		return -EBUSY;
-	}
-	INIT_WORK(&s->work, max3107_work);
-
-	/* Setup IRQ */
-	if (request_irq(s->spi->irq, max3107_irq, IRQF_TRIGGER_FALLING,
-			"max3107", s)) {
-		dev_err(&s->spi->dev, "IRQ reguest failed\n");
-		destroy_workqueue(s->workqueue);
-		s->workqueue = NULL;
-		return -EBUSY;
-	}
-
-	/* Resume HW */
-	if (s->pdata->hw_suspend)
-		s->pdata->hw_suspend(s, 0);
-
-	/* Init registers */
-	max3107_register_init(s);
-
-	return 0;
-}
-
-/* Port type function */
-static const char *max3107_type(struct uart_port *port)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-	return s->spi->modalias;
-}
-
-/* Port release function */
-static void max3107_release_port(struct uart_port *port)
-{
-	/* Do nothing */
-}
-
-/* Port request function */
-static int max3107_request_port(struct uart_port *port)
-{
-	/* Do nothing */
-	return 0;
-}
-
-/* Port config function */
-static void max3107_config_port(struct uart_port *port, int flags)
-{
-	struct max3107_port *s = container_of(port, struct max3107_port, port);
-	s->port.type = PORT_MAX3107;
-}
-
-/* Port verify function */
-static int max3107_verify_port(struct uart_port *port,
-				struct serial_struct *ser)
-{
-	if (ser->type == PORT_UNKNOWN || ser->type == PORT_MAX3107)
-		return 0;
-
-	return -EINVAL;
-}
-
-/* Port stop TX function */
-static void max3107_stop_tx(struct uart_port *port)
-{
-	/* Do nothing */
-}
-
-/* Port break control function */
-static void max3107_break_ctl(struct uart_port *port, int break_state)
-{
-	/* We don't support break control, do nothing */
-}
-
-
-/* Port functions */
-static struct uart_ops max3107_ops = {
-	.tx_empty       = max3107_tx_empty,
-	.set_mctrl      = max3107_set_mctrl,
-	.get_mctrl      = max3107_get_mctrl,
-	.stop_tx        = max3107_stop_tx,
-	.start_tx       = max3107_start_tx,
-	.stop_rx        = max3107_stop_rx,
-	.enable_ms      = max3107_enable_ms,
-	.break_ctl      = max3107_break_ctl,
-	.startup        = max3107_startup,
-	.shutdown       = max3107_shutdown,
-	.set_termios    = max3107_set_termios,
-	.type           = max3107_type,
-	.release_port   = max3107_release_port,
-	.request_port   = max3107_request_port,
-	.config_port    = max3107_config_port,
-	.verify_port    = max3107_verify_port,
-};
-
-/* UART driver data */
-static struct uart_driver max3107_uart_driver = {
-	.owner          = THIS_MODULE,
-	.driver_name    = "ttyMAX",
-	.dev_name       = "ttyMAX",
-	.nr             = 1,
-};
-
-static int driver_registered = 0;
-
-
-
-/* 'Generic' platform data */
-static struct max3107_plat generic_plat_data = {
-	.loopback               = 0,
-	.ext_clk                = 1,
-	.hw_suspend		= max3107_hw_susp,
-	.polled_mode            = 0,
-	.poll_time              = 0,
-};
-
-
-/*******************************************************************/
-
-/**
- *	max3107_probe		-	SPI bus probe entry point
- *	@spi: the spi device
- *
- *	SPI wants us to probe this device and if appropriate claim it.
- *	Perform any platform specific requirements and then initialise
- *	the device.
- */
-
-int max3107_probe(struct spi_device *spi, struct max3107_plat *pdata)
-{
-	struct max3107_port *s;
-	u16 buf[2];	/* Buffer for SPI transfers */
-	int retval;
-
-	pr_info("enter max3107 probe\n");
-
-	/* Allocate port structure */
-	s = kzalloc(sizeof(*s), GFP_KERNEL);
-	if (!s) {
-		pr_err("Allocating port structure failed\n");
-		return -ENOMEM;
-	}
-
-	s->pdata = pdata;
-
-	/* SPI Rx buffer
-	 * +2 for RX FIFO interrupt
-	 * disabling and RX level query
-	 */
-	s->rxbuf = kzalloc(sizeof(u16) * (MAX3107_RX_FIFO_SIZE+2), GFP_KERNEL);
-	if (!s->rxbuf) {
-		pr_err("Allocating RX buffer failed\n");
-		retval = -ENOMEM;
-		goto err_free4;
-	}
-	s->rxstr = kzalloc(sizeof(u8) * MAX3107_RX_FIFO_SIZE, GFP_KERNEL);
-	if (!s->rxstr) {
-		pr_err("Allocating RX buffer failed\n");
-		retval = -ENOMEM;
-		goto err_free3;
-	}
-	/* SPI Tx buffer
-	 * SPI transfer buffer
-	 * +3 for TX FIFO empty
-	 * interrupt disabling and
-	 * enabling and TX enabling
-	 */
-	s->txbuf = kzalloc(sizeof(u16) * MAX3107_TX_FIFO_SIZE + 3, GFP_KERNEL);
-	if (!s->txbuf) {
-		pr_err("Allocating TX buffer failed\n");
-		retval = -ENOMEM;
-		goto err_free2;
-	}
-	/* Initialize shared data lock */
-	spin_lock_init(&s->data_lock);
-
-	/* SPI intializations */
-	dev_set_drvdata(&spi->dev, s);
-	spi->mode = SPI_MODE_0;
-	spi->dev.platform_data = pdata;
-	spi->bits_per_word = 16;
-	s->ext_clk = pdata->ext_clk;
-	s->loopback = pdata->loopback;
-	spi_setup(spi);
-	s->spi = spi;
-
-	/* Check REV ID to ensure we are talking to what we expect */
-	buf[0] = MAX3107_REVID_REG;
-	if (max3107_rw(s, (u8 *)buf, (u8 *)buf, 2)) {
-		dev_err(&s->spi->dev, "SPI transfer for REVID read failed\n");
-		retval = -EIO;
-		goto err_free1;
-	}
-	if ((buf[0] & MAX3107_SPI_RX_DATA_MASK) != MAX3107_REVID1 &&
-		(buf[0] & MAX3107_SPI_RX_DATA_MASK) != MAX3107_REVID2) {
-		dev_err(&s->spi->dev, "REVID %x does not match\n",
-				(buf[0] & MAX3107_SPI_RX_DATA_MASK));
-		retval = -ENODEV;
-		goto err_free1;
-	}
-
-	/* Disable all interrupts */
-	buf[0] = (MAX3107_WRITE_BIT | MAX3107_IRQEN_REG | 0x0000);
-	buf[0] |= 0x0000;
-
-	/* Configure clock source */
-	buf[1] = (MAX3107_WRITE_BIT | MAX3107_CLKSRC_REG);
-	if (s->ext_clk) {
-		/* External clock */
-		buf[1] |= MAX3107_CLKSRC_EXTCLK_BIT;
-	}
-
-	/* PLL bypass ON */
-	buf[1] |= MAX3107_CLKSRC_PLLBYP_BIT;
-
-	/* Perform SPI transfer */
-	if (max3107_rw(s, (u8 *)buf, NULL, 4)) {
-		dev_err(&s->spi->dev, "SPI transfer for init failed\n");
-		retval = -EIO;
-		goto err_free1;
-	}
-
-	/* Register UART driver */
-	if (!driver_registered) {
-		retval = uart_register_driver(&max3107_uart_driver);
-		if (retval) {
-			dev_err(&s->spi->dev, "Registering UART driver failed\n");
-			goto err_free1;
-		}
-		driver_registered = 1;
-	}
-
-	/* Initialize UART port data */
-	s->port.fifosize = 128;
-	s->port.ops = &max3107_ops;
-	s->port.line = 0;
-	s->port.dev = &spi->dev;
-	s->port.uartclk = 9600;
-	s->port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
-	s->port.irq = s->spi->irq;
-	s->port.type = PORT_MAX3107;
-
-	/* Add UART port */
-	retval = uart_add_one_port(&max3107_uart_driver, &s->port);
-	if (retval < 0) {
-		dev_err(&s->spi->dev, "Adding UART port failed\n");
-		goto err_free1;
-	}
-
-	if (pdata->configure) {
-		retval = pdata->configure(s);
-		if (retval < 0)
-			goto err_free1;
-	}
-
-	/* Go to suspend mode */
-	if (pdata->hw_suspend)
-		pdata->hw_suspend(s, 1);
-
-	return 0;
-
-err_free1:
-	kfree(s->txbuf);
-err_free2:
-	kfree(s->rxstr);
-err_free3:
-	kfree(s->rxbuf);
-err_free4:
-	kfree(s);
-	return retval;
-}
-EXPORT_SYMBOL_GPL(max3107_probe);
-
-/* Driver remove function */
-int max3107_remove(struct spi_device *spi)
-{
-	struct max3107_port *s = dev_get_drvdata(&spi->dev);
-
-	pr_info("enter max3107 remove\n");
-
-	/* Remove port */
-	if (uart_remove_one_port(&max3107_uart_driver, &s->port))
-		dev_warn(&s->spi->dev, "Removing UART port failed\n");
-
-
-	/* Free TxRx buffer */
-	kfree(s->rxbuf);
-	kfree(s->rxstr);
-	kfree(s->txbuf);
-
-	/* Free port structure */
-	kfree(s);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(max3107_remove);
-
-/* Driver suspend function */
-int max3107_suspend(struct spi_device *spi, pm_message_t state)
-{
-#ifdef CONFIG_PM
-	struct max3107_port *s = dev_get_drvdata(&spi->dev);
-
-	pr_debug("enter suspend\n");
-
-	/* Suspend UART port */
-	uart_suspend_port(&max3107_uart_driver, &s->port);
-
-	/* Go to suspend mode */
-	if (s->pdata->hw_suspend)
-		s->pdata->hw_suspend(s, 1);
-#endif	/* CONFIG_PM */
-	return 0;
-}
-EXPORT_SYMBOL_GPL(max3107_suspend);
-
-/* Driver resume function */
-int max3107_resume(struct spi_device *spi)
-{
-#ifdef CONFIG_PM
-	struct max3107_port *s = dev_get_drvdata(&spi->dev);
-
-	pr_debug("enter resume\n");
-
-	/* Resume from suspend */
-	if (s->pdata->hw_suspend)
-		s->pdata->hw_suspend(s, 0);
-
-	/* Resume UART port */
-	uart_resume_port(&max3107_uart_driver, &s->port);
-#endif	/* CONFIG_PM */
-	return 0;
-}
-EXPORT_SYMBOL_GPL(max3107_resume);
-
-static int max3107_probe_generic(struct spi_device *spi)
-{
-	return max3107_probe(spi, &generic_plat_data);
-}
-
-/* Spi driver data */
-static struct spi_driver max3107_driver = {
-	.driver = {
-		.name		= "max3107",
-		.owner		= THIS_MODULE,
-	},
-	.probe		= max3107_probe_generic,
-	.remove		= __devexit_p(max3107_remove),
-	.suspend	= max3107_suspend,
-	.resume		= max3107_resume,
-};
-
-/* Driver init function */
-static int __init max3107_init(void)
-{
-	pr_info("enter max3107 init\n");
-	return spi_register_driver(&max3107_driver);
-}
-
-/* Driver exit function */
-static void __exit max3107_exit(void)
-{
-	pr_info("enter max3107 exit\n");
-	/* Unregister UART driver */
-	if (driver_registered)
-		uart_unregister_driver(&max3107_uart_driver);
-	spi_unregister_driver(&max3107_driver);
-}
-
-module_init(max3107_init);
-module_exit(max3107_exit);
-
-MODULE_DESCRIPTION("MAX3107 driver");
-MODULE_AUTHOR("Aavamobile");
-MODULE_ALIAS("spi:max3107");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/max3107.h b/drivers/tty/serial/max3107.h
deleted file mode 100644
index 8415fc723b9..00000000000
--- a/drivers/tty/serial/max3107.h
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * max3107.h - spi uart protocol driver header for Maxim 3107
- *
- * Copyright (C) Aavamobile 2009
- * Based on serial_max3100.h by Christian Pellegrin
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef _MAX3107_H
-#define _MAX3107_H
-
-/* Serial error status definitions */
-#define MAX3107_PARITY_ERROR	1
-#define MAX3107_FRAME_ERROR	2
-#define MAX3107_OVERRUN_ERROR	4
-#define MAX3107_ALL_ERRORS	(MAX3107_PARITY_ERROR | \
-				 MAX3107_FRAME_ERROR | \
-				 MAX3107_OVERRUN_ERROR)
-
-/* GPIO definitions */
-#define MAX3107_GPIO_BASE	88
-#define MAX3107_GPIO_COUNT	4
-
-
-/* GPIO connected to chip's reset pin */
-#define MAX3107_RESET_GPIO	87
-
-
-/* Chip reset delay */
-#define MAX3107_RESET_DELAY	10
-
-/* Chip wakeup delay */
-#define MAX3107_WAKEUP_DELAY	50
-
-
-/* Sleep mode definitions */
-#define MAX3107_DISABLE_FORCED_SLEEP	0
-#define MAX3107_ENABLE_FORCED_SLEEP	1
-#define MAX3107_DISABLE_AUTOSLEEP	2
-#define MAX3107_ENABLE_AUTOSLEEP	3
-
-
-/* Definitions for register access with SPI transfers
- *
- * SPI transfer format:
- *
- * Master to slave bits xzzzzzzzyyyyyyyy
- * Slave to master bits aaaaaaaabbbbbbbb
- *
- * where:
- * x = 0 for reads, 1 for writes
- * z = register address
- * y = new register value if write, 0 if read
- * a = unspecified
- * b = register value if read, unspecified if write
- */
-
-/* SPI speed */
-#define MAX3107_SPI_SPEED	(3125000 * 2)
-
-/* Write bit */
-#define MAX3107_WRITE_BIT	(1 << 15)
-
-/* SPI TX data mask */
-#define MAX3107_SPI_RX_DATA_MASK	(0x00ff)
-
-/* SPI RX data mask */
-#define MAX3107_SPI_TX_DATA_MASK	(0x00ff)
-
-/* Register access masks */
-#define MAX3107_RHR_REG			(0x0000) /* RX FIFO */
-#define MAX3107_THR_REG			(0x0000) /* TX FIFO */
-#define MAX3107_IRQEN_REG		(0x0100) /* IRQ enable */
-#define MAX3107_IRQSTS_REG		(0x0200) /* IRQ status */
-#define MAX3107_LSR_IRQEN_REG		(0x0300) /* LSR IRQ enable */
-#define MAX3107_LSR_IRQSTS_REG		(0x0400) /* LSR IRQ status */
-#define MAX3107_SPCHR_IRQEN_REG		(0x0500) /* Special char IRQ enable */
-#define MAX3107_SPCHR_IRQSTS_REG	(0x0600) /* Special char IRQ status */
-#define MAX3107_STS_IRQEN_REG		(0x0700) /* Status IRQ enable */
-#define MAX3107_STS_IRQSTS_REG		(0x0800) /* Status IRQ status */
-#define MAX3107_MODE1_REG		(0x0900) /* MODE1 */
-#define MAX3107_MODE2_REG		(0x0a00) /* MODE2 */
-#define MAX3107_LCR_REG			(0x0b00) /* LCR */
-#define MAX3107_RXTO_REG		(0x0c00) /* RX timeout */
-#define MAX3107_HDPIXDELAY_REG		(0x0d00) /* Auto transceiver delays */
-#define MAX3107_IRDA_REG		(0x0e00) /* IRDA settings */
-#define MAX3107_FLOWLVL_REG		(0x0f00) /* Flow control levels */
-#define MAX3107_FIFOTRIGLVL_REG		(0x1000) /* FIFO IRQ trigger levels */
-#define MAX3107_TXFIFOLVL_REG		(0x1100) /* TX FIFO level */
-#define MAX3107_RXFIFOLVL_REG		(0x1200) /* RX FIFO level */
-#define MAX3107_FLOWCTRL_REG		(0x1300) /* Flow control */
-#define MAX3107_XON1_REG		(0x1400) /* XON1 character */
-#define MAX3107_XON2_REG		(0x1500) /* XON2 character */
-#define MAX3107_XOFF1_REG		(0x1600) /* XOFF1 character */
-#define MAX3107_XOFF2_REG		(0x1700) /* XOFF2 character */
-#define MAX3107_GPIOCFG_REG		(0x1800) /* GPIO config */
-#define MAX3107_GPIODATA_REG		(0x1900) /* GPIO data */
-#define MAX3107_PLLCFG_REG		(0x1a00) /* PLL config */
-#define MAX3107_BRGCFG_REG		(0x1b00) /* Baud rate generator conf */
-#define MAX3107_BRGDIVLSB_REG		(0x1c00) /* Baud rate divisor LSB */
-#define MAX3107_BRGDIVMSB_REG		(0x1d00) /* Baud rate divisor MSB */
-#define MAX3107_CLKSRC_REG		(0x1e00) /* Clock source */
-#define MAX3107_REVID_REG		(0x1f00) /* Revision identification */
-
-/* IRQ register bits */
-#define MAX3107_IRQ_LSR_BIT	(1 << 0) /* LSR interrupt */
-#define MAX3107_IRQ_SPCHR_BIT	(1 << 1) /* Special char interrupt */
-#define MAX3107_IRQ_STS_BIT	(1 << 2) /* Status interrupt */
-#define MAX3107_IRQ_RXFIFO_BIT	(1 << 3) /* RX FIFO interrupt */
-#define MAX3107_IRQ_TXFIFO_BIT	(1 << 4) /* TX FIFO interrupt */
-#define MAX3107_IRQ_TXEMPTY_BIT	(1 << 5) /* TX FIFO empty interrupt */
-#define MAX3107_IRQ_RXEMPTY_BIT	(1 << 6) /* RX FIFO empty interrupt */
-#define MAX3107_IRQ_CTS_BIT	(1 << 7) /* CTS interrupt */
-
-/* LSR register bits */
-#define MAX3107_LSR_RXTO_BIT	(1 << 0) /* RX timeout */
-#define MAX3107_LSR_RXOVR_BIT	(1 << 1) /* RX overrun */
-#define MAX3107_LSR_RXPAR_BIT	(1 << 2) /* RX parity error */
-#define MAX3107_LSR_FRERR_BIT	(1 << 3) /* Frame error */
-#define MAX3107_LSR_RXBRK_BIT	(1 << 4) /* RX break */
-#define MAX3107_LSR_RXNOISE_BIT	(1 << 5) /* RX noise */
-#define MAX3107_LSR_UNDEF6_BIT	(1 << 6) /* Undefined/not used */
-#define MAX3107_LSR_CTS_BIT	(1 << 7) /* CTS pin state */
-
-/* Special character register bits */
-#define MAX3107_SPCHR_XON1_BIT		(1 << 0) /* XON1 character */
-#define MAX3107_SPCHR_XON2_BIT		(1 << 1) /* XON2 character */
-#define MAX3107_SPCHR_XOFF1_BIT		(1 << 2) /* XOFF1 character */
-#define MAX3107_SPCHR_XOFF2_BIT		(1 << 3) /* XOFF2 character */
-#define MAX3107_SPCHR_BREAK_BIT		(1 << 4) /* RX break */
-#define MAX3107_SPCHR_MULTIDROP_BIT	(1 << 5) /* 9-bit multidrop addr char */
-#define MAX3107_SPCHR_UNDEF6_BIT	(1 << 6) /* Undefined/not used */
-#define MAX3107_SPCHR_UNDEF7_BIT	(1 << 7) /* Undefined/not used */
-
-/* Status register bits */
-#define MAX3107_STS_GPIO0_BIT		(1 << 0) /* GPIO 0 interrupt */
-#define MAX3107_STS_GPIO1_BIT		(1 << 1) /* GPIO 1 interrupt */
-#define MAX3107_STS_GPIO2_BIT		(1 << 2) /* GPIO 2 interrupt */
-#define MAX3107_STS_GPIO3_BIT		(1 << 3) /* GPIO 3 interrupt */
-#define MAX3107_STS_UNDEF4_BIT		(1 << 4) /* Undefined/not used */
-#define MAX3107_STS_CLKREADY_BIT	(1 << 5) /* Clock ready */
-#define MAX3107_STS_SLEEP_BIT		(1 << 6) /* Sleep interrupt */
-#define MAX3107_STS_UNDEF7_BIT		(1 << 7) /* Undefined/not used */
-
-/* MODE1 register bits */
-#define MAX3107_MODE1_RXDIS_BIT		(1 << 0) /* RX disable */
-#define MAX3107_MODE1_TXDIS_BIT		(1 << 1) /* TX disable */
-#define MAX3107_MODE1_TXHIZ_BIT		(1 << 2) /* TX pin three-state */
-#define MAX3107_MODE1_RTSHIZ_BIT	(1 << 3) /* RTS pin three-state */
-#define MAX3107_MODE1_TRNSCVCTRL_BIT	(1 << 4) /* Transceiver ctrl enable */
-#define MAX3107_MODE1_FORCESLEEP_BIT	(1 << 5) /* Force sleep mode */
-#define MAX3107_MODE1_AUTOSLEEP_BIT	(1 << 6) /* Auto sleep enable */
-#define MAX3107_MODE1_IRQSEL_BIT	(1 << 7) /* IRQ pin enable */
-
-/* MODE2 register bits */
-#define MAX3107_MODE2_RST_BIT		(1 << 0) /* Chip reset */
-#define MAX3107_MODE2_FIFORST_BIT	(1 << 1) /* FIFO reset */
-#define MAX3107_MODE2_RXTRIGINV_BIT	(1 << 2) /* RX FIFO INT invert */
-#define MAX3107_MODE2_RXEMPTINV_BIT	(1 << 3) /* RX FIFO empty INT invert */
-#define MAX3107_MODE2_SPCHR_BIT		(1 << 4) /* Special chr detect enable */
-#define MAX3107_MODE2_LOOPBACK_BIT	(1 << 5) /* Internal loopback enable */
-#define MAX3107_MODE2_MULTIDROP_BIT	(1 << 6) /* 9-bit multidrop enable */
-#define MAX3107_MODE2_ECHOSUPR_BIT	(1 << 7) /* ECHO suppression enable */
-
-/* LCR register bits */
-#define MAX3107_LCR_LENGTH0_BIT		(1 << 0) /* Word length bit 0 */
-#define MAX3107_LCR_LENGTH1_BIT		(1 << 1) /* Word length bit 1
-						  *
-						  * Word length bits table:
-						  * 00 -> 5 bit words
-						  * 01 -> 6 bit words
-						  * 10 -> 7 bit words
-						  * 11 -> 8 bit words
-						  */
-#define MAX3107_LCR_STOPLEN_BIT		(1 << 2) /* STOP length bit
-						  *
-						  * STOP length bit table:
-						  * 0 -> 1 stop bit
-						  * 1 -> 1-1.5 stop bits if
-						  *      word length is 5,
-						  *      2 stop bits otherwise
-						  */
-#define MAX3107_LCR_PARITY_BIT		(1 << 3) /* Parity bit enable */
-#define MAX3107_LCR_EVENPARITY_BIT	(1 << 4) /* Even parity bit enable */
-#define MAX3107_LCR_FORCEPARITY_BIT	(1 << 5) /* 9-bit multidrop parity */
-#define MAX3107_LCR_TXBREAK_BIT		(1 << 6) /* TX break enable */
-#define MAX3107_LCR_RTS_BIT		(1 << 7) /* RTS pin control */
-#define MAX3107_LCR_WORD_LEN_5		(0x0000)
-#define MAX3107_LCR_WORD_LEN_6		(0x0001)
-#define MAX3107_LCR_WORD_LEN_7		(0x0002)
-#define MAX3107_LCR_WORD_LEN_8		(0x0003)
-
-
-/* IRDA register bits */
-#define MAX3107_IRDA_IRDAEN_BIT		(1 << 0) /* IRDA mode enable */
-#define MAX3107_IRDA_SIR_BIT		(1 << 1) /* SIR mode enable */
-#define MAX3107_IRDA_SHORTIR_BIT	(1 << 2) /* Short SIR mode enable */
-#define MAX3107_IRDA_MIR_BIT		(1 << 3) /* MIR mode enable */
-#define MAX3107_IRDA_RXINV_BIT		(1 << 4) /* RX logic inversion enable */
-#define MAX3107_IRDA_TXINV_BIT		(1 << 5) /* TX logic inversion enable */
-#define MAX3107_IRDA_UNDEF6_BIT		(1 << 6) /* Undefined/not used */
-#define MAX3107_IRDA_UNDEF7_BIT		(1 << 7) /* Undefined/not used */
-
-/* Flow control trigger level register masks */
-#define MAX3107_FLOWLVL_HALT_MASK	(0x000f) /* Flow control halt level */
-#define MAX3107_FLOWLVL_RES_MASK	(0x00f0) /* Flow control resume level */
-#define MAX3107_FLOWLVL_HALT(words)	((words/8) & 0x000f)
-#define MAX3107_FLOWLVL_RES(words)	(((words/8) & 0x000f) << 4)
-
-/* FIFO interrupt trigger level register masks */
-#define MAX3107_FIFOTRIGLVL_TX_MASK	(0x000f) /* TX FIFO trigger level */
-#define MAX3107_FIFOTRIGLVL_RX_MASK	(0x00f0) /* RX FIFO trigger level */
-#define MAX3107_FIFOTRIGLVL_TX(words)	((words/8) & 0x000f)
-#define MAX3107_FIFOTRIGLVL_RX(words)	(((words/8) & 0x000f) << 4)
-
-/* Flow control register bits */
-#define MAX3107_FLOWCTRL_AUTORTS_BIT	(1 << 0) /* Auto RTS flow ctrl enable */
-#define MAX3107_FLOWCTRL_AUTOCTS_BIT	(1 << 1) /* Auto CTS flow ctrl enable */
-#define MAX3107_FLOWCTRL_GPIADDR_BIT	(1 << 2) /* Enables that GPIO inputs
-						  * are used in conjunction with
-						  * XOFF2 for definition of
-						  * special character */
-#define MAX3107_FLOWCTRL_SWFLOWEN_BIT	(1 << 3) /* Auto SW flow ctrl enable */
-#define MAX3107_FLOWCTRL_SWFLOW0_BIT	(1 << 4) /* SWFLOW bit 0 */
-#define MAX3107_FLOWCTRL_SWFLOW1_BIT	(1 << 5) /* SWFLOW bit 1
-						  *
-						  * SWFLOW bits 1 & 0 table:
-						  * 00 -> no transmitter flow
-						  *       control
-						  * 01 -> receiver compares
-						  *       XON2 and XOFF2
-						  *       and controls
-						  *       transmitter
-						  * 10 -> receiver compares
-						  *       XON1 and XOFF1
-						  *       and controls
-						  *       transmitter
-						  * 11 -> receiver compares
-						  *       XON1, XON2, XOFF1 and
-						  *       XOFF2 and controls
-						  *       transmitter
-						  */
-#define MAX3107_FLOWCTRL_SWFLOW2_BIT	(1 << 6) /* SWFLOW bit 2 */
-#define MAX3107_FLOWCTRL_SWFLOW3_BIT	(1 << 7) /* SWFLOW bit 3
-						  *
-						  * SWFLOW bits 3 & 2 table:
-						  * 00 -> no received flow
-						  *       control
-						  * 01 -> transmitter generates
-						  *       XON2 and XOFF2
-						  * 10 -> transmitter generates
-						  *       XON1 and XOFF1
-						  * 11 -> transmitter generates
-						  *       XON1, XON2, XOFF1 and
-						  *       XOFF2
-						  */
-
-/* GPIO configuration register bits */
-#define MAX3107_GPIOCFG_GP0OUT_BIT	(1 << 0) /* GPIO 0 output enable */
-#define MAX3107_GPIOCFG_GP1OUT_BIT	(1 << 1) /* GPIO 1 output enable */
-#define MAX3107_GPIOCFG_GP2OUT_BIT	(1 << 2) /* GPIO 2 output enable */
-#define MAX3107_GPIOCFG_GP3OUT_BIT	(1 << 3) /* GPIO 3 output enable */
-#define MAX3107_GPIOCFG_GP0OD_BIT	(1 << 4) /* GPIO 0 open-drain enable */
-#define MAX3107_GPIOCFG_GP1OD_BIT	(1 << 5) /* GPIO 1 open-drain enable */
-#define MAX3107_GPIOCFG_GP2OD_BIT	(1 << 6) /* GPIO 2 open-drain enable */
-#define MAX3107_GPIOCFG_GP3OD_BIT	(1 << 7) /* GPIO 3 open-drain enable */
-
-/* GPIO DATA register bits */
-#define MAX3107_GPIODATA_GP0OUT_BIT	(1 << 0) /* GPIO 0 output value */
-#define MAX3107_GPIODATA_GP1OUT_BIT	(1 << 1) /* GPIO 1 output value */
-#define MAX3107_GPIODATA_GP2OUT_BIT	(1 << 2) /* GPIO 2 output value */
-#define MAX3107_GPIODATA_GP3OUT_BIT	(1 << 3) /* GPIO 3 output value */
-#define MAX3107_GPIODATA_GP0IN_BIT	(1 << 4) /* GPIO 0 input value */
-#define MAX3107_GPIODATA_GP1IN_BIT	(1 << 5) /* GPIO 1 input value */
-#define MAX3107_GPIODATA_GP2IN_BIT	(1 << 6) /* GPIO 2 input value */
-#define MAX3107_GPIODATA_GP3IN_BIT	(1 << 7) /* GPIO 3 input value */
-
-/* PLL configuration register masks */
-#define MAX3107_PLLCFG_PREDIV_MASK	(0x003f) /* PLL predivision value */
-#define MAX3107_PLLCFG_PLLFACTOR_MASK	(0x00c0) /* PLL multiplication factor */
-
-/* Baud rate generator configuration register masks and bits */
-#define MAX3107_BRGCFG_FRACT_MASK	(0x000f) /* Fractional portion of
-						  * Baud rate generator divisor
-						  */
-#define MAX3107_BRGCFG_2XMODE_BIT	(1 << 4) /* Double baud rate */
-#define MAX3107_BRGCFG_4XMODE_BIT	(1 << 5) /* Quadruple baud rate */
-#define MAX3107_BRGCFG_UNDEF6_BIT	(1 << 6) /* Undefined/not used */
-#define MAX3107_BRGCFG_UNDEF7_BIT	(1 << 7) /* Undefined/not used */
-
-/* Clock source register bits */
-#define MAX3107_CLKSRC_INTOSC_BIT	(1 << 0) /* Internal osc enable */
-#define MAX3107_CLKSRC_CRYST_BIT	(1 << 1) /* Crystal osc enable */
-#define MAX3107_CLKSRC_PLL_BIT		(1 << 2) /* PLL enable */
-#define MAX3107_CLKSRC_PLLBYP_BIT	(1 << 3) /* PLL bypass */
-#define MAX3107_CLKSRC_EXTCLK_BIT	(1 << 4) /* External clock enable */
-#define MAX3107_CLKSRC_UNDEF5_BIT	(1 << 5) /* Undefined/not used */
-#define MAX3107_CLKSRC_UNDEF6_BIT	(1 << 6) /* Undefined/not used */
-#define MAX3107_CLKSRC_CLK2RTS_BIT	(1 << 7) /* Baud clk to RTS pin */
-
-
-/* HW definitions */
-#define MAX3107_RX_FIFO_SIZE	128
-#define MAX3107_TX_FIFO_SIZE	128
-#define MAX3107_REVID1		0x00a0
-#define MAX3107_REVID2		0x00a1
-
-
-/* Baud rate generator configuration values for external clock 13MHz */
-#define MAX3107_BRG13_B300	(0x0A9400 | 0x05)
-#define MAX3107_BRG13_B600	(0x054A00 | 0x03)
-#define MAX3107_BRG13_B1200	(0x02A500 | 0x01)
-#define MAX3107_BRG13_B2400	(0x015200 | 0x09)
-#define MAX3107_BRG13_B4800	(0x00A900 | 0x04)
-#define MAX3107_BRG13_B9600	(0x005400 | 0x0A)
-#define MAX3107_BRG13_B19200	(0x002A00 | 0x05)
-#define MAX3107_BRG13_B38400	(0x001500 | 0x03)
-#define MAX3107_BRG13_B57600	(0x000E00 | 0x02)
-#define MAX3107_BRG13_B115200	(0x000700 | 0x01)
-#define MAX3107_BRG13_B230400	(0x000300 | 0x08)
-#define MAX3107_BRG13_B460800	(0x000100 | 0x0c)
-#define MAX3107_BRG13_B921600	(0x000100 | 0x1c)
-
-/* Baud rate generator configuration values for external clock 26MHz */
-#define MAX3107_BRG26_B300	(0x152800 | 0x0A)
-#define MAX3107_BRG26_B600	(0x0A9400 | 0x05)
-#define MAX3107_BRG26_B1200	(0x054A00 | 0x03)
-#define MAX3107_BRG26_B2400	(0x02A500 | 0x01)
-#define MAX3107_BRG26_B4800	(0x015200 | 0x09)
-#define MAX3107_BRG26_B9600	(0x00A900 | 0x04)
-#define MAX3107_BRG26_B19200	(0x005400 | 0x0A)
-#define MAX3107_BRG26_B38400	(0x002A00 | 0x05)
-#define MAX3107_BRG26_B57600	(0x001C00 | 0x03)
-#define MAX3107_BRG26_B115200	(0x000E00 | 0x02)
-#define MAX3107_BRG26_B230400	(0x000700 | 0x01)
-#define MAX3107_BRG26_B460800	(0x000300 | 0x08)
-#define MAX3107_BRG26_B921600	(0x000100 | 0x0C)
-
-/* Baud rate generator configuration values for internal clock */
-#define MAX3107_BRG13_IB300	(0x008000 | 0x00)
-#define MAX3107_BRG13_IB600	(0x004000 | 0x00)
-#define MAX3107_BRG13_IB1200	(0x002000 | 0x00)
-#define MAX3107_BRG13_IB2400	(0x001000 | 0x00)
-#define MAX3107_BRG13_IB4800	(0x000800 | 0x00)
-#define MAX3107_BRG13_IB9600	(0x000400 | 0x00)
-#define MAX3107_BRG13_IB19200	(0x000200 | 0x00)
-#define MAX3107_BRG13_IB38400	(0x000100 | 0x00)
-#define MAX3107_BRG13_IB57600	(0x000000 | 0x0B)
-#define MAX3107_BRG13_IB115200	(0x000000 | 0x05)
-#define MAX3107_BRG13_IB230400	(0x000000 | 0x03)
-#define MAX3107_BRG13_IB460800	(0x000000 | 0x00)
-#define MAX3107_BRG13_IB921600	(0x000000 | 0x00)
-
-
-struct baud_table {
-	int baud;
-	u32 new_brg;
-};
-
-struct max3107_port {
-	/* UART port structure */
-	struct uart_port port;
-
-	/* SPI device structure */
-	struct spi_device *spi;
-
-#if defined(CONFIG_GPIOLIB)
-	/* GPIO chip structure */
-	struct gpio_chip chip;
-#endif
-
-	/* Workqueue that does all the magic */
-	struct workqueue_struct *workqueue;
-	struct work_struct work;
-
-	/* Lock for shared data */
-	spinlock_t data_lock;
-
-	/* Device configuration */
-	int ext_clk;		/* 1 if external clock used */
-	int loopback;		/* Current loopback mode state */
-	int baud;			/* Current baud rate */
-
-	/* State flags */
-	int suspended;		/* Indicates suspend mode */
-	int tx_fifo_empty;	/* Flag for TX FIFO state */
-	int rx_enabled;		/* Flag for receiver state */
-	int tx_enabled;		/* Flag for transmitter state */
-
-	u16 irqen_reg;		/* Current IRQ enable register value */
-	/* Shared data */
-	u16 mode1_reg;		/* Current mode1 register value*/
-	int mode1_commit;	/* Flag for setting new mode1 register value */
-	u16 lcr_reg;		/* Current LCR register value */
-	int lcr_commit;		/* Flag for setting new LCR register value */
-	u32 brg_cfg;		/* Current Baud rate generator config  */
-	int brg_commit;		/* Flag for setting new baud rate generator
-				 * config
-				 */
-	struct baud_table *baud_tbl;
-	int handle_irq;		/* Indicates that IRQ should be handled */
-
-	/* Rx buffer and str*/
-	u16 *rxbuf;
-	u8  *rxstr;
-	/* Tx buffer*/
-	u16 *txbuf;
-
-	struct max3107_plat *pdata;	/* Platform data */
-};
-
-/* Platform data structure */
-struct max3107_plat {
-	/* Loopback mode enable */
-	int loopback;
-	/* External clock enable */
-	int ext_clk;
-	/* Called during the register initialisation */
-	void (*init)(struct max3107_port *s);
-	/* Called when the port is found and configured */
-	int (*configure)(struct max3107_port *s);
-	/* HW suspend function */
-	void (*hw_suspend) (struct max3107_port *s, int suspend);
-	/* Polling mode enable */
-	int polled_mode;
-	/* Polling period if polling mode enabled */
-	int poll_time;
-};
-
-extern int max3107_rw(struct max3107_port *s, u8 *tx, u8 *rx, int len);
-extern void max3107_hw_susp(struct max3107_port *s, int suspend);
-extern int max3107_probe(struct spi_device *spi, struct max3107_plat *pdata);
-extern int max3107_remove(struct spi_device *spi);
-extern int max3107_suspend(struct spi_device *spi, pm_message_t state);
-extern int max3107_resume(struct spi_device *spi);
-
-#endif /* _LINUX_SERIAL_MAX3107_H */
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
new file mode 100644
index 00000000000..2bc28a59d38
--- /dev/null
+++ b/drivers/tty/serial/max310x.c
@@ -0,0 +1,1260 @@
+/*
+ *  Maxim (Dallas) MAX3107/8 serial driver
+ *
+ *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ *  Based on max3100.c, by Christian Pellegrin <chripell@evolware.org>
+ *  Based on max3110.c, by Feng Tang <feng.tang@intel.com>
+ *  Based on max3107.c, by Aavamobile
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ */
+
+/* TODO: MAX3109 support (Dual) */
+/* TODO: MAX14830 support (Quad) */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/regmap.h>
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/platform_data/max310x.h>
+
+#define MAX310X_MAJOR			204
+#define MAX310X_MINOR			209
+
+/* MAX310X register definitions */
+#define MAX310X_RHR_REG			(0x00) /* RX FIFO */
+#define MAX310X_THR_REG			(0x00) /* TX FIFO */
+#define MAX310X_IRQEN_REG		(0x01) /* IRQ enable */
+#define MAX310X_IRQSTS_REG		(0x02) /* IRQ status */
+#define MAX310X_LSR_IRQEN_REG		(0x03) /* LSR IRQ enable */
+#define MAX310X_LSR_IRQSTS_REG		(0x04) /* LSR IRQ status */
+#define MAX310X_SPCHR_IRQEN_REG		(0x05) /* Special char IRQ enable */
+#define MAX310X_SPCHR_IRQSTS_REG	(0x06) /* Special char IRQ status */
+#define MAX310X_STS_IRQEN_REG		(0x07) /* Status IRQ enable */
+#define MAX310X_STS_IRQSTS_REG		(0x08) /* Status IRQ status */
+#define MAX310X_MODE1_REG		(0x09) /* MODE1 */
+#define MAX310X_MODE2_REG		(0x0a) /* MODE2 */
+#define MAX310X_LCR_REG			(0x0b) /* LCR */
+#define MAX310X_RXTO_REG		(0x0c) /* RX timeout */
+#define MAX310X_HDPIXDELAY_REG		(0x0d) /* Auto transceiver delays */
+#define MAX310X_IRDA_REG		(0x0e) /* IRDA settings */
+#define MAX310X_FLOWLVL_REG		(0x0f) /* Flow control levels */
+#define MAX310X_FIFOTRIGLVL_REG		(0x10) /* FIFO IRQ trigger levels */
+#define MAX310X_TXFIFOLVL_REG		(0x11) /* TX FIFO level */
+#define MAX310X_RXFIFOLVL_REG		(0x12) /* RX FIFO level */
+#define MAX310X_FLOWCTRL_REG		(0x13) /* Flow control */
+#define MAX310X_XON1_REG		(0x14) /* XON1 character */
+#define MAX310X_XON2_REG		(0x15) /* XON2 character */
+#define MAX310X_XOFF1_REG		(0x16) /* XOFF1 character */
+#define MAX310X_XOFF2_REG		(0x17) /* XOFF2 character */
+#define MAX310X_GPIOCFG_REG		(0x18) /* GPIO config */
+#define MAX310X_GPIODATA_REG		(0x19) /* GPIO data */
+#define MAX310X_PLLCFG_REG		(0x1a) /* PLL config */
+#define MAX310X_BRGCFG_REG		(0x1b) /* Baud rate generator conf */
+#define MAX310X_BRGDIVLSB_REG		(0x1c) /* Baud rate divisor LSB */
+#define MAX310X_BRGDIVMSB_REG		(0x1d) /* Baud rate divisor MSB */
+#define MAX310X_CLKSRC_REG		(0x1e) /* Clock source */
+/* Only present in MAX3107 */
+#define MAX3107_REVID_REG		(0x1f) /* Revision identification */
+
+/* IRQ register bits */
+#define MAX310X_IRQ_LSR_BIT		(1 << 0) /* LSR interrupt */
+#define MAX310X_IRQ_SPCHR_BIT		(1 << 1) /* Special char interrupt */
+#define MAX310X_IRQ_STS_BIT		(1 << 2) /* Status interrupt */
+#define MAX310X_IRQ_RXFIFO_BIT		(1 << 3) /* RX FIFO interrupt */
+#define MAX310X_IRQ_TXFIFO_BIT		(1 << 4) /* TX FIFO interrupt */
+#define MAX310X_IRQ_TXEMPTY_BIT		(1 << 5) /* TX FIFO empty interrupt */
+#define MAX310X_IRQ_RXEMPTY_BIT		(1 << 6) /* RX FIFO empty interrupt */
+#define MAX310X_IRQ_CTS_BIT		(1 << 7) /* CTS interrupt */
+
+/* LSR register bits */
+#define MAX310X_LSR_RXTO_BIT		(1 << 0) /* RX timeout */
+#define MAX310X_LSR_RXOVR_BIT		(1 << 1) /* RX overrun */
+#define MAX310X_LSR_RXPAR_BIT		(1 << 2) /* RX parity error */
+#define MAX310X_LSR_FRERR_BIT		(1 << 3) /* Frame error */
+#define MAX310X_LSR_RXBRK_BIT		(1 << 4) /* RX break */
+#define MAX310X_LSR_RXNOISE_BIT		(1 << 5) /* RX noise */
+#define MAX310X_LSR_CTS_BIT		(1 << 7) /* CTS pin state */
+
+/* Special character register bits */
+#define MAX310X_SPCHR_XON1_BIT		(1 << 0) /* XON1 character */
+#define MAX310X_SPCHR_XON2_BIT		(1 << 1) /* XON2 character */
+#define MAX310X_SPCHR_XOFF1_BIT		(1 << 2) /* XOFF1 character */
+#define MAX310X_SPCHR_XOFF2_BIT		(1 << 3) /* XOFF2 character */
+#define MAX310X_SPCHR_BREAK_BIT		(1 << 4) /* RX break */
+#define MAX310X_SPCHR_MULTIDROP_BIT	(1 << 5) /* 9-bit multidrop addr char */
+
+/* Status register bits */
+#define MAX310X_STS_GPIO0_BIT		(1 << 0) /* GPIO 0 interrupt */
+#define MAX310X_STS_GPIO1_BIT		(1 << 1) /* GPIO 1 interrupt */
+#define MAX310X_STS_GPIO2_BIT		(1 << 2) /* GPIO 2 interrupt */
+#define MAX310X_STS_GPIO3_BIT		(1 << 3) /* GPIO 3 interrupt */
+#define MAX310X_STS_CLKREADY_BIT	(1 << 5) /* Clock ready */
+#define MAX310X_STS_SLEEP_BIT		(1 << 6) /* Sleep interrupt */
+
+/* MODE1 register bits */
+#define MAX310X_MODE1_RXDIS_BIT		(1 << 0) /* RX disable */
+#define MAX310X_MODE1_TXDIS_BIT		(1 << 1) /* TX disable */
+#define MAX310X_MODE1_TXHIZ_BIT		(1 << 2) /* TX pin three-state */
+#define MAX310X_MODE1_RTSHIZ_BIT	(1 << 3) /* RTS pin three-state */
+#define MAX310X_MODE1_TRNSCVCTRL_BIT	(1 << 4) /* Transceiver ctrl enable */
+#define MAX310X_MODE1_FORCESLEEP_BIT	(1 << 5) /* Force sleep mode */
+#define MAX310X_MODE1_AUTOSLEEP_BIT	(1 << 6) /* Auto sleep enable */
+#define MAX310X_MODE1_IRQSEL_BIT	(1 << 7) /* IRQ pin enable */
+
+/* MODE2 register bits */
+#define MAX310X_MODE2_RST_BIT		(1 << 0) /* Chip reset */
+#define MAX310X_MODE2_FIFORST_BIT	(1 << 1) /* FIFO reset */
+#define MAX310X_MODE2_RXTRIGINV_BIT	(1 << 2) /* RX FIFO INT invert */
+#define MAX310X_MODE2_RXEMPTINV_BIT	(1 << 3) /* RX FIFO empty INT invert */
+#define MAX310X_MODE2_SPCHR_BIT		(1 << 4) /* Special chr detect enable */
+#define MAX310X_MODE2_LOOPBACK_BIT	(1 << 5) /* Internal loopback enable */
+#define MAX310X_MODE2_MULTIDROP_BIT	(1 << 6) /* 9-bit multidrop enable */
+#define MAX310X_MODE2_ECHOSUPR_BIT	(1 << 7) /* ECHO suppression enable */
+
+/* LCR register bits */
+#define MAX310X_LCR_LENGTH0_BIT		(1 << 0) /* Word length bit 0 */
+#define MAX310X_LCR_LENGTH1_BIT		(1 << 1) /* Word length bit 1
+						  *
+						  * Word length bits table:
+						  * 00 -> 5 bit words
+						  * 01 -> 6 bit words
+						  * 10 -> 7 bit words
+						  * 11 -> 8 bit words
+						  */
+#define MAX310X_LCR_STOPLEN_BIT		(1 << 2) /* STOP length bit
+						  *
+						  * STOP length bit table:
+						  * 0 -> 1 stop bit
+						  * 1 -> 1-1.5 stop bits if
+						  *      word length is 5,
+						  *      2 stop bits otherwise
+						  */
+#define MAX310X_LCR_PARITY_BIT		(1 << 3) /* Parity bit enable */
+#define MAX310X_LCR_EVENPARITY_BIT	(1 << 4) /* Even parity bit enable */
+#define MAX310X_LCR_FORCEPARITY_BIT	(1 << 5) /* 9-bit multidrop parity */
+#define MAX310X_LCR_TXBREAK_BIT		(1 << 6) /* TX break enable */
+#define MAX310X_LCR_RTS_BIT		(1 << 7) /* RTS pin control */
+#define MAX310X_LCR_WORD_LEN_5		(0x00)
+#define MAX310X_LCR_WORD_LEN_6		(0x01)
+#define MAX310X_LCR_WORD_LEN_7		(0x02)
+#define MAX310X_LCR_WORD_LEN_8		(0x03)
+
+/* IRDA register bits */
+#define MAX310X_IRDA_IRDAEN_BIT		(1 << 0) /* IRDA mode enable */
+#define MAX310X_IRDA_SIR_BIT		(1 << 1) /* SIR mode enable */
+#define MAX310X_IRDA_SHORTIR_BIT	(1 << 2) /* Short SIR mode enable */
+#define MAX310X_IRDA_MIR_BIT		(1 << 3) /* MIR mode enable */
+#define MAX310X_IRDA_RXINV_BIT		(1 << 4) /* RX logic inversion enable */
+#define MAX310X_IRDA_TXINV_BIT		(1 << 5) /* TX logic inversion enable */
+
+/* Flow control trigger level register masks */
+#define MAX310X_FLOWLVL_HALT_MASK	(0x000f) /* Flow control halt level */
+#define MAX310X_FLOWLVL_RES_MASK	(0x00f0) /* Flow control resume level */
+#define MAX310X_FLOWLVL_HALT(words)	((words / 8) & 0x0f)
+#define MAX310X_FLOWLVL_RES(words)	(((words / 8) & 0x0f) << 4)
+
+/* FIFO interrupt trigger level register masks */
+#define MAX310X_FIFOTRIGLVL_TX_MASK	(0x0f) /* TX FIFO trigger level */
+#define MAX310X_FIFOTRIGLVL_RX_MASK	(0xf0) /* RX FIFO trigger level */
+#define MAX310X_FIFOTRIGLVL_TX(words)	((words / 8) & 0x0f)
+#define MAX310X_FIFOTRIGLVL_RX(words)	(((words / 8) & 0x0f) << 4)
+
+/* Flow control register bits */
+#define MAX310X_FLOWCTRL_AUTORTS_BIT	(1 << 0) /* Auto RTS flow ctrl enable */
+#define MAX310X_FLOWCTRL_AUTOCTS_BIT	(1 << 1) /* Auto CTS flow ctrl enable */
+#define MAX310X_FLOWCTRL_GPIADDR_BIT	(1 << 2) /* Enables that GPIO inputs
+						  * are used in conjunction with
+						  * XOFF2 for definition of
+						  * special character */
+#define MAX310X_FLOWCTRL_SWFLOWEN_BIT	(1 << 3) /* Auto SW flow ctrl enable */
+#define MAX310X_FLOWCTRL_SWFLOW0_BIT	(1 << 4) /* SWFLOW bit 0 */
+#define MAX310X_FLOWCTRL_SWFLOW1_BIT	(1 << 5) /* SWFLOW bit 1
+						  *
+						  * SWFLOW bits 1 & 0 table:
+						  * 00 -> no transmitter flow
+						  *       control
+						  * 01 -> receiver compares
+						  *       XON2 and XOFF2
+						  *       and controls
+						  *       transmitter
+						  * 10 -> receiver compares
+						  *       XON1 and XOFF1
+						  *       and controls
+						  *       transmitter
+						  * 11 -> receiver compares
+						  *       XON1, XON2, XOFF1 and
+						  *       XOFF2 and controls
+						  *       transmitter
+						  */
+#define MAX310X_FLOWCTRL_SWFLOW2_BIT	(1 << 6) /* SWFLOW bit 2 */
+#define MAX310X_FLOWCTRL_SWFLOW3_BIT	(1 << 7) /* SWFLOW bit 3
+						  *
+						  * SWFLOW bits 3 & 2 table:
+						  * 00 -> no received flow
+						  *       control
+						  * 01 -> transmitter generates
+						  *       XON2 and XOFF2
+						  * 10 -> transmitter generates
+						  *       XON1 and XOFF1
+						  * 11 -> transmitter generates
+						  *       XON1, XON2, XOFF1 and
+						  *       XOFF2
+						  */
+
+/* GPIO configuration register bits */
+#define MAX310X_GPIOCFG_GP0OUT_BIT	(1 << 0) /* GPIO 0 output enable */
+#define MAX310X_GPIOCFG_GP1OUT_BIT	(1 << 1) /* GPIO 1 output enable */
+#define MAX310X_GPIOCFG_GP2OUT_BIT	(1 << 2) /* GPIO 2 output enable */
+#define MAX310X_GPIOCFG_GP3OUT_BIT	(1 << 3) /* GPIO 3 output enable */
+#define MAX310X_GPIOCFG_GP0OD_BIT	(1 << 4) /* GPIO 0 open-drain enable */
+#define MAX310X_GPIOCFG_GP1OD_BIT	(1 << 5) /* GPIO 1 open-drain enable */
+#define MAX310X_GPIOCFG_GP2OD_BIT	(1 << 6) /* GPIO 2 open-drain enable */
+#define MAX310X_GPIOCFG_GP3OD_BIT	(1 << 7) /* GPIO 3 open-drain enable */
+
+/* GPIO DATA register bits */
+#define MAX310X_GPIODATA_GP0OUT_BIT	(1 << 0) /* GPIO 0 output value */
+#define MAX310X_GPIODATA_GP1OUT_BIT	(1 << 1) /* GPIO 1 output value */
+#define MAX310X_GPIODATA_GP2OUT_BIT	(1 << 2) /* GPIO 2 output value */
+#define MAX310X_GPIODATA_GP3OUT_BIT	(1 << 3) /* GPIO 3 output value */
+#define MAX310X_GPIODATA_GP0IN_BIT	(1 << 4) /* GPIO 0 input value */
+#define MAX310X_GPIODATA_GP1IN_BIT	(1 << 5) /* GPIO 1 input value */
+#define MAX310X_GPIODATA_GP2IN_BIT	(1 << 6) /* GPIO 2 input value */
+#define MAX310X_GPIODATA_GP3IN_BIT	(1 << 7) /* GPIO 3 input value */
+
+/* PLL configuration register masks */
+#define MAX310X_PLLCFG_PREDIV_MASK	(0x3f) /* PLL predivision value */
+#define MAX310X_PLLCFG_PLLFACTOR_MASK	(0xc0) /* PLL multiplication factor */
+
+/* Baud rate generator configuration register bits */
+#define MAX310X_BRGCFG_2XMODE_BIT	(1 << 4) /* Double baud rate */
+#define MAX310X_BRGCFG_4XMODE_BIT	(1 << 5) /* Quadruple baud rate */
+
+/* Clock source register bits */
+#define MAX310X_CLKSRC_CRYST_BIT	(1 << 1) /* Crystal osc enable */
+#define MAX310X_CLKSRC_PLL_BIT		(1 << 2) /* PLL enable */
+#define MAX310X_CLKSRC_PLLBYP_BIT	(1 << 3) /* PLL bypass */
+#define MAX310X_CLKSRC_EXTCLK_BIT	(1 << 4) /* External clock enable */
+#define MAX310X_CLKSRC_CLK2RTS_BIT	(1 << 7) /* Baud clk to RTS pin */
+
+/* Misc definitions */
+#define MAX310X_FIFO_SIZE		(128)
+
+/* MAX3107 specific */
+#define MAX3107_REV_ID			(0xa0)
+#define MAX3107_REV_MASK		(0xfe)
+
+/* IRQ status bits definitions */
+#define MAX310X_IRQ_TX			(MAX310X_IRQ_TXFIFO_BIT | \
+					 MAX310X_IRQ_TXEMPTY_BIT)
+#define MAX310X_IRQ_RX			(MAX310X_IRQ_RXFIFO_BIT | \
+					 MAX310X_IRQ_RXEMPTY_BIT)
+
+/* Supported chip types */
+enum {
+	MAX310X_TYPE_MAX3107	= 3107,
+	MAX310X_TYPE_MAX3108	= 3108,
+};
+
+struct max310x_port {
+	struct uart_driver	uart;
+	struct uart_port	port;
+
+	const char		*name;
+	int			uartclk;
+
+	unsigned int		nr_gpio;
+#ifdef CONFIG_GPIOLIB
+	struct gpio_chip	gpio;
+#endif
+
+	struct regmap		*regmap;
+	struct regmap_config	regcfg;
+
+	struct workqueue_struct	*wq;
+	struct work_struct	tx_work;
+
+	struct mutex		max310x_mutex;
+
+	struct max310x_pdata	*pdata;
+};
+
+static bool max3107_8_reg_writeable(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX310X_IRQSTS_REG:
+	case MAX310X_LSR_IRQSTS_REG:
+	case MAX310X_SPCHR_IRQSTS_REG:
+	case MAX310X_STS_IRQSTS_REG:
+	case MAX310X_TXFIFOLVL_REG:
+	case MAX310X_RXFIFOLVL_REG:
+	case MAX3107_REVID_REG: /* Only available on MAX3107 */
+		return false;
+	default:
+		break;
+	}
+
+	return true;
+}
+
+static bool max310x_reg_volatile(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX310X_RHR_REG:
+	case MAX310X_IRQSTS_REG:
+	case MAX310X_LSR_IRQSTS_REG:
+	case MAX310X_SPCHR_IRQSTS_REG:
+	case MAX310X_STS_IRQSTS_REG:
+	case MAX310X_TXFIFOLVL_REG:
+	case MAX310X_RXFIFOLVL_REG:
+	case MAX310X_GPIODATA_REG:
+		return true;
+	default:
+		break;
+	}
+
+	return false;
+}
+
+static bool max310x_reg_precious(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX310X_RHR_REG:
+	case MAX310X_IRQSTS_REG:
+	case MAX310X_SPCHR_IRQSTS_REG:
+	case MAX310X_STS_IRQSTS_REG:
+		return true;
+	default:
+		break;
+	}
+
+	return false;
+}
+
+static void max310x_set_baud(struct max310x_port *s, int baud)
+{
+	unsigned int mode = 0, div = s->uartclk / baud;
+
+	if (!(div / 16)) {
+		/* Mode x2 */
+		mode = MAX310X_BRGCFG_2XMODE_BIT;
+		div = (s->uartclk * 2) / baud;
+	}
+
+	if (!(div / 16)) {
+		/* Mode x4 */
+		mode = MAX310X_BRGCFG_4XMODE_BIT;
+		div = (s->uartclk * 4) / baud;
+	}
+
+	regmap_write(s->regmap, MAX310X_BRGDIVMSB_REG,
+		     ((div / 16) >> 8) & 0xff);
+	regmap_write(s->regmap, MAX310X_BRGDIVLSB_REG, (div / 16) & 0xff);
+	regmap_write(s->regmap, MAX310X_BRGCFG_REG, (div % 16) | mode);
+}
+
+static void max310x_wait_pll(struct max310x_port *s)
+{
+	int tryes = 1000;
+
+	/* Wait for PLL only if crystal is used */
+	if (!(s->pdata->driver_flags & MAX310X_EXT_CLK)) {
+		unsigned int sts = 0;
+
+		while (tryes--) {
+			regmap_read(s->regmap, MAX310X_STS_IRQSTS_REG, &sts);
+			if (sts & MAX310X_STS_CLKREADY_BIT)
+				break;
+		}
+	}
+}
+
+static int __devinit max310x_update_best_err(unsigned long f, long *besterr)
+{
+	/* Use baudrate 115200 for calculate error */
+	long err = f % (115200 * 16);
+
+	if ((*besterr < 0) || (*besterr > err)) {
+		*besterr = err;
+		return 0;
+	}
+
+	return 1;
+}
+
+static int __devinit max310x_set_ref_clk(struct max310x_port *s)
+{
+	unsigned int div, clksrc, pllcfg = 0;
+	long besterr = -1;
+	unsigned long fdiv, fmul, bestfreq = s->pdata->frequency;
+
+	/* First, update error without PLL */
+	max310x_update_best_err(s->pdata->frequency, &besterr);
+
+	/* Try all possible PLL dividers */
+	for (div = 1; (div <= 63) && besterr; div++) {
+		fdiv = DIV_ROUND_CLOSEST(s->pdata->frequency, div);
+
+		/* Try multiplier 6 */
+		fmul = fdiv * 6;
+		if ((fdiv >= 500000) && (fdiv <= 800000))
+			if (!max310x_update_best_err(fmul, &besterr)) {
+				pllcfg = (0 << 6) | div;
+				bestfreq = fmul;
+			}
+		/* Try multiplier 48 */
+		fmul = fdiv * 48;
+		if ((fdiv >= 850000) && (fdiv <= 1200000))
+			if (!max310x_update_best_err(fmul, &besterr)) {
+				pllcfg = (1 << 6) | div;
+				bestfreq = fmul;
+			}
+		/* Try multiplier 96 */
+		fmul = fdiv * 96;
+		if ((fdiv >= 425000) && (fdiv <= 1000000))
+			if (!max310x_update_best_err(fmul, &besterr)) {
+				pllcfg = (2 << 6) | div;
+				bestfreq = fmul;
+			}
+		/* Try multiplier 144 */
+		fmul = fdiv * 144;
+		if ((fdiv >= 390000) && (fdiv <= 667000))
+			if (!max310x_update_best_err(fmul, &besterr)) {
+				pllcfg = (3 << 6) | div;
+				bestfreq = fmul;
+			}
+	}
+
+	/* Configure clock source */
+	if (s->pdata->driver_flags & MAX310X_EXT_CLK)
+		clksrc = MAX310X_CLKSRC_EXTCLK_BIT;
+	else
+		clksrc = MAX310X_CLKSRC_CRYST_BIT;
+
+	/* Configure PLL */
+	if (pllcfg) {
+		clksrc |= MAX310X_CLKSRC_PLL_BIT;
+		regmap_write(s->regmap, MAX310X_PLLCFG_REG, pllcfg);
+	} else
+		clksrc |= MAX310X_CLKSRC_PLLBYP_BIT;
+
+	regmap_write(s->regmap, MAX310X_CLKSRC_REG, clksrc);
+
+	if (pllcfg)
+		max310x_wait_pll(s);
+
+	dev_dbg(s->port.dev, "Reference clock set to %lu Hz\n", bestfreq);
+
+	return (int)bestfreq;
+}
+
+static void max310x_handle_rx(struct max310x_port *s, unsigned int rxlen)
+{
+	unsigned int sts = 0, ch = 0, flag;
+	struct tty_struct *tty = tty_port_tty_get(&s->port.state->port);
+
+	if (!tty)
+		return;
+
+	if (unlikely(rxlen >= MAX310X_FIFO_SIZE)) {
+		dev_warn(s->port.dev, "Possible RX FIFO overrun %d\n", rxlen);
+		/* Ensure sanity of RX level */
+		rxlen = MAX310X_FIFO_SIZE;
+	}
+
+	dev_dbg(s->port.dev, "RX Len = %u\n", rxlen);
+
+	while (rxlen--) {
+		regmap_read(s->regmap, MAX310X_RHR_REG, &ch);
+		regmap_read(s->regmap, MAX310X_LSR_IRQSTS_REG, &sts);
+
+		sts &= MAX310X_LSR_RXPAR_BIT | MAX310X_LSR_FRERR_BIT |
+		       MAX310X_LSR_RXOVR_BIT | MAX310X_LSR_RXBRK_BIT;
+
+		s->port.icount.rx++;
+		flag = TTY_NORMAL;
+
+		if (unlikely(sts)) {
+			if (sts & MAX310X_LSR_RXBRK_BIT) {
+				s->port.icount.brk++;
+				if (uart_handle_break(&s->port))
+					continue;
+			} else if (sts & MAX310X_LSR_RXPAR_BIT)
+				s->port.icount.parity++;
+			else if (sts & MAX310X_LSR_FRERR_BIT)
+				s->port.icount.frame++;
+			else if (sts & MAX310X_LSR_RXOVR_BIT)
+				s->port.icount.overrun++;
+
+			sts &= s->port.read_status_mask;
+			if (sts & MAX310X_LSR_RXBRK_BIT)
+				flag = TTY_BREAK;
+			else if (sts & MAX310X_LSR_RXPAR_BIT)
+				flag = TTY_PARITY;
+			else if (sts & MAX310X_LSR_FRERR_BIT)
+				flag = TTY_FRAME;
+			else if (sts & MAX310X_LSR_RXOVR_BIT)
+				flag = TTY_OVERRUN;
+		}
+
+		if (uart_handle_sysrq_char(s->port, ch))
+			continue;
+
+		if (sts & s->port.ignore_status_mask)
+			continue;
+
+		uart_insert_char(&s->port, sts, MAX310X_LSR_RXOVR_BIT,
+				 ch, flag);
+	}
+
+	tty_flip_buffer_push(tty);
+
+	tty_kref_put(tty);
+}
+
+static void max310x_handle_tx(struct max310x_port *s)
+{
+	struct circ_buf *xmit = &s->port.state->xmit;
+	unsigned int txlen = 0, to_send;
+
+	if (unlikely(s->port.x_char)) {
+		regmap_write(s->regmap, MAX310X_THR_REG, s->port.x_char);
+		s->port.icount.tx++;
+		s->port.x_char = 0;
+		return;
+	}
+
+	if (uart_circ_empty(xmit) || uart_tx_stopped(&s->port))
+		return;
+
+	/* Get length of data pending in circular buffer */
+	to_send = uart_circ_chars_pending(xmit);
+	if (likely(to_send)) {
+		/* Limit to size of TX FIFO */
+		regmap_read(s->regmap, MAX310X_TXFIFOLVL_REG, &txlen);
+		txlen = MAX310X_FIFO_SIZE - txlen;
+		to_send = (to_send > txlen) ? txlen : to_send;
+
+		dev_dbg(s->port.dev, "TX Len = %u\n", to_send);
+
+		/* Add data to send */
+		s->port.icount.tx += to_send;
+		while (to_send--) {
+			regmap_write(s->regmap, MAX310X_THR_REG,
+				     xmit->buf[xmit->tail]);
+			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		};
+	}
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(&s->port);
+}
+
+static irqreturn_t max310x_ist(int irq, void *dev_id)
+{
+	struct max310x_port *s = (struct max310x_port *)dev_id;
+	unsigned int ists = 0, lsr = 0, rxlen = 0;
+
+	mutex_lock(&s->max310x_mutex);
+
+	for (;;) {
+		/* Read IRQ status & RX FIFO level */
+		regmap_read(s->regmap, MAX310X_IRQSTS_REG, &ists);
+		regmap_read(s->regmap, MAX310X_LSR_IRQSTS_REG, &lsr);
+		regmap_read(s->regmap, MAX310X_RXFIFOLVL_REG, &rxlen);
+		if (!ists && !(lsr & MAX310X_LSR_RXTO_BIT) && !rxlen)
+			break;
+
+		dev_dbg(s->port.dev, "IRQ status: 0x%02x\n", ists);
+
+		if (rxlen)
+			max310x_handle_rx(s, rxlen);
+		if (ists & MAX310X_IRQ_TX)
+			max310x_handle_tx(s);
+		if (ists & MAX310X_IRQ_CTS_BIT)
+			uart_handle_cts_change(&s->port,
+					       !!(lsr & MAX310X_LSR_CTS_BIT));
+	}
+
+	mutex_unlock(&s->max310x_mutex);
+
+	return IRQ_HANDLED;
+}
+
+static void max310x_wq_proc(struct work_struct *ws)
+{
+	struct max310x_port *s = container_of(ws, struct max310x_port, tx_work);
+
+	mutex_lock(&s->max310x_mutex);
+	max310x_handle_tx(s);
+	mutex_unlock(&s->max310x_mutex);
+}
+
+static void max310x_start_tx(struct uart_port *port)
+{
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+
+	queue_work(s->wq, &s->tx_work);
+}
+
+static void max310x_stop_tx(struct uart_port *port)
+{
+	/* Do nothing */
+}
+
+static void max310x_stop_rx(struct uart_port *port)
+{
+	/* Do nothing */
+}
+
+static unsigned int max310x_tx_empty(struct uart_port *port)
+{
+	unsigned int val = 0;
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+
+	mutex_lock(&s->max310x_mutex);
+	regmap_read(s->regmap, MAX310X_TXFIFOLVL_REG, &val);
+	mutex_unlock(&s->max310x_mutex);
+
+	return val ? 0 : TIOCSER_TEMT;
+}
+
+static void max310x_enable_ms(struct uart_port *port)
+{
+	/* Modem status not supported */
+}
+
+static unsigned int max310x_get_mctrl(struct uart_port *port)
+{
+	/* DCD and DSR are not wired and CTS/RTS is handled automatically
+	 * so just indicate DSR and CAR asserted
+	 */
+	return TIOCM_DSR | TIOCM_CAR;
+}
+
+static void max310x_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	/* DCD and DSR are not wired and CTS/RTS is hadnled automatically
+	 * so do nothing
+	 */
+}
+
+static void max310x_break_ctl(struct uart_port *port, int break_state)
+{
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+
+	mutex_lock(&s->max310x_mutex);
+	regmap_update_bits(s->regmap, MAX310X_LCR_REG,
+			   MAX310X_LCR_TXBREAK_BIT,
+			   break_state ? MAX310X_LCR_TXBREAK_BIT : 0);
+	mutex_unlock(&s->max310x_mutex);
+}
+
+static void max310x_set_termios(struct uart_port *port,
+				struct ktermios *termios,
+				struct ktermios *old)
+{
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+	unsigned int lcr, flow = 0;
+	int baud;
+
+	mutex_lock(&s->max310x_mutex);
+
+	/* Mask termios capabilities we don't support */
+	termios->c_cflag &= ~CMSPAR;
+	termios->c_iflag &= ~IXANY;
+
+	/* Word size */
+	switch (termios->c_cflag & CSIZE) {
+	case CS5:
+		lcr = MAX310X_LCR_WORD_LEN_5;
+		break;
+	case CS6:
+		lcr = MAX310X_LCR_WORD_LEN_6;
+		break;
+	case CS7:
+		lcr = MAX310X_LCR_WORD_LEN_7;
+		break;
+	case CS8:
+	default:
+		lcr = MAX310X_LCR_WORD_LEN_8;
+		break;
+	}
+
+	/* Parity */
+	if (termios->c_cflag & PARENB) {
+		lcr |= MAX310X_LCR_PARITY_BIT;
+		if (!(termios->c_cflag & PARODD))
+			lcr |= MAX310X_LCR_EVENPARITY_BIT;
+	}
+
+	/* Stop bits */
+	if (termios->c_cflag & CSTOPB)
+		lcr |= MAX310X_LCR_STOPLEN_BIT; /* 2 stops */
+
+	/* Update LCR register */
+	regmap_write(s->regmap, MAX310X_LCR_REG, lcr);
+
+	/* Set read status mask */
+	port->read_status_mask = MAX310X_LSR_RXOVR_BIT;
+	if (termios->c_iflag & INPCK)
+		port->read_status_mask |= MAX310X_LSR_RXPAR_BIT |
+					  MAX310X_LSR_FRERR_BIT;
+	if (termios->c_iflag & (BRKINT | PARMRK))
+		port->read_status_mask |= MAX310X_LSR_RXBRK_BIT;
+
+	/* Set status ignore mask */
+	port->ignore_status_mask = 0;
+	if (termios->c_iflag & IGNBRK)
+		port->ignore_status_mask |= MAX310X_LSR_RXBRK_BIT;
+	if (!(termios->c_cflag & CREAD))
+		port->ignore_status_mask |= MAX310X_LSR_RXPAR_BIT |
+					    MAX310X_LSR_RXOVR_BIT |
+					    MAX310X_LSR_FRERR_BIT |
+					    MAX310X_LSR_RXBRK_BIT;
+
+	/* Configure flow control */
+	regmap_write(s->regmap, MAX310X_XON1_REG, termios->c_cc[VSTART]);
+	regmap_write(s->regmap, MAX310X_XOFF1_REG, termios->c_cc[VSTOP]);
+	if (termios->c_cflag & CRTSCTS)
+		flow |= MAX310X_FLOWCTRL_AUTOCTS_BIT |
+			MAX310X_FLOWCTRL_AUTORTS_BIT;
+	if (termios->c_iflag & IXON)
+		flow |= MAX310X_FLOWCTRL_SWFLOW3_BIT |
+			MAX310X_FLOWCTRL_SWFLOWEN_BIT;
+	if (termios->c_iflag & IXOFF)
+		flow |= MAX310X_FLOWCTRL_SWFLOW1_BIT |
+			MAX310X_FLOWCTRL_SWFLOWEN_BIT;
+	regmap_write(s->regmap, MAX310X_FLOWCTRL_REG, flow);
+
+	/* Get baud rate generator configuration */
+	baud = uart_get_baud_rate(port, termios, old,
+				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 4);
+
+	/* Setup baudrate generator */
+	max310x_set_baud(s, baud);
+
+	/* Update timeout according to new baud rate */
+	uart_update_timeout(port, termios->c_cflag, baud);
+
+	mutex_unlock(&s->max310x_mutex);
+}
+
+static int max310x_startup(struct uart_port *port)
+{
+	unsigned int val, line = port->line;
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+
+	if (s->pdata->suspend)
+		s->pdata->suspend(0);
+
+	mutex_lock(&s->max310x_mutex);
+
+	/* Configure baud rate, 9600 as default */
+	max310x_set_baud(s, 9600);
+
+	/* Configure LCR register, 8N1 mode by default */
+	val = MAX310X_LCR_WORD_LEN_8;
+	regmap_write(s->regmap, MAX310X_LCR_REG, val);
+
+	/* Configure MODE1 register */
+	regmap_update_bits(s->regmap, MAX310X_MODE1_REG,
+			   MAX310X_MODE1_TRNSCVCTRL_BIT,
+			   (s->pdata->uart_flags[line] & MAX310X_AUTO_DIR_CTRL)
+			   ? MAX310X_MODE1_TRNSCVCTRL_BIT : 0);
+
+	/* Configure MODE2 register */
+	val = MAX310X_MODE2_RXEMPTINV_BIT;
+	if (s->pdata->uart_flags[line] & MAX310X_LOOPBACK)
+		val |= MAX310X_MODE2_LOOPBACK_BIT;
+	if (s->pdata->uart_flags[line] & MAX310X_ECHO_SUPRESS)
+		val |= MAX310X_MODE2_ECHOSUPR_BIT;
+
+	/* Reset FIFOs */
+	val |= MAX310X_MODE2_FIFORST_BIT;
+	regmap_write(s->regmap, MAX310X_MODE2_REG, val);
+
+	/* Configure FIFO trigger level register */
+	/* RX FIFO trigger for 16 words, TX FIFO trigger for 64 words */
+	val = MAX310X_FIFOTRIGLVL_RX(16) | MAX310X_FIFOTRIGLVL_TX(64);
+	regmap_write(s->regmap, MAX310X_FIFOTRIGLVL_REG, val);
+
+	/* Configure flow control levels */
+	/* Flow control halt level 96, resume level 48 */
+	val = MAX310X_FLOWLVL_RES(48) | MAX310X_FLOWLVL_HALT(96);
+	regmap_write(s->regmap, MAX310X_FLOWLVL_REG, val);
+
+	/* Clear timeout register */
+	regmap_write(s->regmap, MAX310X_RXTO_REG, 0);
+
+	/* Configure LSR interrupt enable register */
+	/* Enable RX timeout interrupt */
+	val = MAX310X_LSR_RXTO_BIT;
+	regmap_write(s->regmap, MAX310X_LSR_IRQEN_REG, val);
+
+	/* Clear FIFO reset */
+	regmap_update_bits(s->regmap, MAX310X_MODE2_REG,
+			   MAX310X_MODE2_FIFORST_BIT, 0);
+
+	/* Clear IRQ status register by reading it */
+	regmap_read(s->regmap, MAX310X_IRQSTS_REG, &val);
+
+	/* Configure interrupt enable register */
+	/* Enable CTS change interrupt */
+	val = MAX310X_IRQ_CTS_BIT;
+	/* Enable RX, TX interrupts */
+	val |= MAX310X_IRQ_RX | MAX310X_IRQ_TX;
+	regmap_write(s->regmap, MAX310X_IRQEN_REG, val);
+
+	mutex_unlock(&s->max310x_mutex);
+
+	return 0;
+}
+
+static void max310x_shutdown(struct uart_port *port)
+{
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+
+	/* Disable all interrupts */
+	mutex_lock(&s->max310x_mutex);
+	regmap_write(s->regmap, MAX310X_IRQEN_REG, 0);
+	mutex_unlock(&s->max310x_mutex);
+
+	if (s->pdata->suspend)
+		s->pdata->suspend(1);
+}
+
+static const char *max310x_type(struct uart_port *port)
+{
+	struct max310x_port *s = container_of(port, struct max310x_port, port);
+
+	return (port->type == PORT_MAX310X) ? s->name : NULL;
+}
+
+static int max310x_request_port(struct uart_port *port)
+{
+	/* Do nothing */
+	return 0;
+}
+
+static void max310x_release_port(struct uart_port *port)
+{
+	/* Do nothing */
+}
+
+static void max310x_config_port(struct uart_port *port, int flags)
+{
+	if (flags & UART_CONFIG_TYPE)
+		port->type = PORT_MAX310X;
+}
+
+static int max310x_verify_port(struct uart_port *port, struct serial_struct *ser)
+{
+	if ((ser->type == PORT_UNKNOWN) || (ser->type == PORT_MAX310X))
+		return 0;
+	if (ser->irq == port->irq)
+		return 0;
+
+	return -EINVAL;
+}
+
+static struct uart_ops max310x_ops = {
+	.tx_empty	= max310x_tx_empty,
+	.set_mctrl	= max310x_set_mctrl,
+	.get_mctrl	= max310x_get_mctrl,
+	.stop_tx	= max310x_stop_tx,
+	.start_tx	= max310x_start_tx,
+	.stop_rx	= max310x_stop_rx,
+	.enable_ms	= max310x_enable_ms,
+	.break_ctl	= max310x_break_ctl,
+	.startup	= max310x_startup,
+	.shutdown	= max310x_shutdown,
+	.set_termios	= max310x_set_termios,
+	.type		= max310x_type,
+	.request_port	= max310x_request_port,
+	.release_port	= max310x_release_port,
+	.config_port	= max310x_config_port,
+	.verify_port	= max310x_verify_port,
+};
+
+static int max310x_suspend(struct spi_device *spi, pm_message_t state)
+{
+	int ret;
+	struct max310x_port *s = dev_get_drvdata(&spi->dev);
+
+	dev_dbg(&spi->dev, "Suspend\n");
+
+	ret = uart_suspend_port(&s->uart, &s->port);
+
+	mutex_lock(&s->max310x_mutex);
+
+	/* Enable sleep mode */
+	regmap_update_bits(s->regmap, MAX310X_MODE1_REG,
+			   MAX310X_MODE1_FORCESLEEP_BIT,
+			   MAX310X_MODE1_FORCESLEEP_BIT);
+
+	mutex_unlock(&s->max310x_mutex);
+
+	if (s->pdata->suspend)
+		s->pdata->suspend(1);
+
+	return ret;
+}
+
+static int max310x_resume(struct spi_device *spi)
+{
+	struct max310x_port *s = dev_get_drvdata(&spi->dev);
+
+	dev_dbg(&spi->dev, "Resume\n");
+
+	if (s->pdata->suspend)
+		s->pdata->suspend(0);
+
+	mutex_lock(&s->max310x_mutex);
+
+	/* Disable sleep mode */
+	regmap_update_bits(s->regmap, MAX310X_MODE1_REG,
+			   MAX310X_MODE1_FORCESLEEP_BIT,
+			   0);
+
+	max310x_wait_pll(s);
+
+	mutex_unlock(&s->max310x_mutex);
+
+	return uart_resume_port(&s->uart, &s->port);
+}
+
+#ifdef CONFIG_GPIOLIB
+static int max310x_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	unsigned int val = 0;
+	struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
+
+	mutex_lock(&s->max310x_mutex);
+	regmap_read(s->regmap, MAX310X_GPIODATA_REG, &val);
+	mutex_unlock(&s->max310x_mutex);
+
+	return !!((val >> 4) & (1 << offset));
+}
+
+static void max310x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
+
+	mutex_lock(&s->max310x_mutex);
+	regmap_update_bits(s->regmap, MAX310X_GPIODATA_REG, 1 << offset, value ?
+							    1 << offset : 0);
+	mutex_unlock(&s->max310x_mutex);
+}
+
+static int max310x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
+
+	mutex_lock(&s->max310x_mutex);
+
+	regmap_update_bits(s->regmap, MAX310X_GPIOCFG_REG, 1 << offset, 0);
+
+	mutex_unlock(&s->max310x_mutex);
+
+	return 0;
+}
+
+static int max310x_gpio_direction_output(struct gpio_chip *chip,
+					 unsigned offset, int value)
+{
+	struct max310x_port *s = container_of(chip, struct max310x_port, gpio);
+
+	mutex_lock(&s->max310x_mutex);
+
+	regmap_update_bits(s->regmap, MAX310X_GPIOCFG_REG, 1 << offset,
+							   1 << offset);
+	regmap_update_bits(s->regmap, MAX310X_GPIODATA_REG, 1 << offset, value ?
+							    1 << offset : 0);
+
+	mutex_unlock(&s->max310x_mutex);
+
+	return 0;
+}
+#endif
+
+/* Generic platform data */
+static struct max310x_pdata generic_plat_data = {
+	.driver_flags	= MAX310X_EXT_CLK,
+	.uart_flags[0]	= MAX310X_ECHO_SUPRESS,
+	.frequency	= 26000000,
+};
+
+static int __devinit max310x_probe(struct spi_device *spi)
+{
+	struct max310x_port *s;
+	struct device *dev = &spi->dev;
+	int chiptype = spi_get_device_id(spi)->driver_data;
+	struct max310x_pdata *pdata = dev->platform_data;
+	unsigned int val = 0;
+	int ret;
+
+	/* Check for IRQ */
+	if (spi->irq <= 0) {
+		dev_err(dev, "No IRQ specified\n");
+		return -ENOTSUPP;
+	}
+
+	/* Alloc port structure */
+	s = devm_kzalloc(dev, sizeof(struct max310x_port), GFP_KERNEL);
+	if (!s) {
+		dev_err(dev, "Error allocating port structure\n");
+		return -ENOMEM;
+	}
+	dev_set_drvdata(dev, s);
+
+	if (!pdata) {
+		dev_warn(dev, "No platform data supplied, using defaults\n");
+		pdata = &generic_plat_data;
+	}
+	s->pdata = pdata;
+
+	/* Individual chip settings */
+	switch (chiptype) {
+	case MAX310X_TYPE_MAX3107:
+		s->name = "MAX3107";
+		s->nr_gpio = 4;
+		s->uart.nr = 1;
+		s->regcfg.max_register = 0x1f;
+		break;
+	case MAX310X_TYPE_MAX3108:
+		s->name = "MAX3108";
+		s->nr_gpio = 4;
+		s->uart.nr = 1;
+		s->regcfg.max_register = 0x1e;
+		break;
+	default:
+		dev_err(dev, "Unsupported chip type %i\n", chiptype);
+		return -ENOTSUPP;
+	}
+
+	/* Check input frequency */
+	if ((pdata->driver_flags & MAX310X_EXT_CLK) &&
+	   ((pdata->frequency < 500000) || (pdata->frequency > 35000000)))
+		goto err_freq;
+	/* Check frequency for quartz */
+	if (!(pdata->driver_flags & MAX310X_EXT_CLK) &&
+	   ((pdata->frequency < 1000000) || (pdata->frequency > 4000000)))
+		goto err_freq;
+
+	mutex_init(&s->max310x_mutex);
+
+	/* Setup SPI bus */
+	spi->mode		= SPI_MODE_0;
+	spi->bits_per_word	= 8;
+	spi->max_speed_hz	= 26000000;
+	spi_setup(spi);
+
+	/* Setup regmap */
+	s->regcfg.reg_bits		= 8;
+	s->regcfg.val_bits		= 8;
+	s->regcfg.read_flag_mask	= 0x00;
+	s->regcfg.write_flag_mask	= 0x80;
+	s->regcfg.cache_type		= REGCACHE_RBTREE;
+	s->regcfg.writeable_reg		= max3107_8_reg_writeable;
+	s->regcfg.volatile_reg		= max310x_reg_volatile;
+	s->regcfg.precious_reg		= max310x_reg_precious;
+	s->regmap = devm_regmap_init_spi(spi, &s->regcfg);
+	if (IS_ERR(s->regmap)) {
+		ret = PTR_ERR(s->regmap);
+		dev_err(dev, "Failed to initialize register map\n");
+		goto err_out;
+	}
+
+	/* Reset chip & check SPI function */
+	ret = regmap_write(s->regmap, MAX310X_MODE2_REG, MAX310X_MODE2_RST_BIT);
+	if (ret) {
+		dev_err(dev, "SPI transfer failed\n");
+		goto err_out;
+	}
+	/* Clear chip reset */
+	regmap_write(s->regmap, MAX310X_MODE2_REG, 0);
+
+	switch (chiptype) {
+	case MAX310X_TYPE_MAX3107:
+		/* Check REV ID to ensure we are talking to what we expect */
+		regmap_read(s->regmap, MAX3107_REVID_REG, &val);
+		if (((val & MAX3107_REV_MASK) != MAX3107_REV_ID)) {
+			dev_err(dev, "%s ID 0x%02x does not match\n",
+				s->name, val);
+			ret = -ENODEV;
+			goto err_out;
+		}
+		break;
+	case MAX310X_TYPE_MAX3108:
+		/* MAX3108 have not REV ID register, we just check default value
+		 * from clocksource register to make sure everything works.
+		 */
+		regmap_read(s->regmap, MAX310X_CLKSRC_REG, &val);
+		if (val != (MAX310X_CLKSRC_EXTCLK_BIT |
+			    MAX310X_CLKSRC_PLLBYP_BIT)) {
+			dev_err(dev, "%s not present\n", s->name);
+			ret = -ENODEV;
+			goto err_out;
+		}
+		break;
+	}
+
+	/* Board specific configure */
+	if (pdata->init)
+		pdata->init();
+	if (pdata->suspend)
+		pdata->suspend(0);
+
+	/* Calculate referecne clock */
+	s->uartclk = max310x_set_ref_clk(s);
+
+	/* Disable all interrupts */
+	regmap_write(s->regmap, MAX310X_IRQEN_REG, 0);
+
+	/* Setup MODE1 register */
+	val = MAX310X_MODE1_IRQSEL_BIT; /* Enable IRQ pin */
+	if (pdata->driver_flags & MAX310X_AUTOSLEEP)
+		val = MAX310X_MODE1_AUTOSLEEP_BIT;
+	regmap_write(s->regmap, MAX310X_MODE1_REG, val);
+
+	/* Setup interrupt */
+	ret = devm_request_threaded_irq(dev, spi->irq, NULL, max310x_ist,
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+					dev_name(dev), s);
+	if (ret) {
+		dev_err(dev, "Unable to reguest IRQ %i\n", spi->irq);
+		goto err_out;
+	}
+
+	/* Register UART driver */
+	s->uart.owner		= THIS_MODULE;
+	s->uart.driver_name	= dev_name(dev);
+	s->uart.dev_name	= "ttyMAX";
+	s->uart.major		= MAX310X_MAJOR;
+	s->uart.minor		= MAX310X_MINOR;
+	ret = uart_register_driver(&s->uart);
+	if (ret) {
+		dev_err(dev, "Registering UART driver failed\n");
+		goto err_out;
+	}
+
+	/* Initialize workqueue for start TX */
+	s->wq = create_freezable_workqueue(dev_name(dev));
+	INIT_WORK(&s->tx_work, max310x_wq_proc);
+
+	/* Initialize UART port data */
+	s->port.line		= 0;
+	s->port.dev		= dev;
+	s->port.irq		= spi->irq;
+	s->port.type		= PORT_MAX310X;
+	s->port.fifosize	= MAX310X_FIFO_SIZE;
+	s->port.flags		= UPF_SKIP_TEST | UPF_FIXED_TYPE;
+	s->port.iotype		= UPIO_PORT;
+	s->port.membase		= (void __iomem *)0xffffffff; /* Bogus value */
+	s->port.uartclk		= s->uartclk;
+	s->port.ops		= &max310x_ops;
+	uart_add_one_port(&s->uart, &s->port);
+
+#ifdef CONFIG_GPIOLIB
+	/* Setup GPIO cotroller */
+	if (pdata->gpio_base) {
+		s->gpio.owner		= THIS_MODULE;
+		s->gpio.dev		= dev;
+		s->gpio.label		= dev_name(dev);
+		s->gpio.direction_input	= max310x_gpio_direction_input;
+		s->gpio.get		= max310x_gpio_get;
+		s->gpio.direction_output= max310x_gpio_direction_output;
+		s->gpio.set		= max310x_gpio_set;
+		s->gpio.base		= pdata->gpio_base;
+		s->gpio.ngpio		= s->nr_gpio;
+		if (gpiochip_add(&s->gpio)) {
+			/* Indicate that we should not call gpiochip_remove */
+			s->gpio.base = 0;
+		}
+	} else
+		dev_info(dev, "GPIO support not enabled\n");
+#endif
+
+	/* Go to suspend mode */
+	if (pdata->suspend)
+		pdata->suspend(1);
+
+	return 0;
+
+err_freq:
+	dev_err(dev, "Frequency parameter incorrect\n");
+	ret = -EINVAL;
+
+err_out:
+	dev_set_drvdata(dev, NULL);
+
+	return ret;
+}
+
+static int __devexit max310x_remove(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	struct max310x_port *s = dev_get_drvdata(dev);
+	int ret = 0;
+
+	dev_dbg(dev, "Removing port\n");
+
+	devm_free_irq(dev, s->port.irq, s);
+
+	destroy_workqueue(s->wq);
+
+	uart_remove_one_port(&s->uart, &s->port);
+
+	uart_unregister_driver(&s->uart);
+
+#ifdef CONFIG_GPIOLIB
+	if (s->pdata->gpio_base) {
+		ret = gpiochip_remove(&s->gpio);
+		if (ret)
+			dev_err(dev, "Failed to remove gpio chip: %d\n", ret);
+	}
+#endif
+
+	dev_set_drvdata(dev, NULL);
+
+	if (s->pdata->suspend)
+		s->pdata->suspend(1);
+	if (s->pdata->exit)
+		s->pdata->exit();
+
+	return ret;
+}
+
+static const struct spi_device_id max310x_id_table[] = {
+	{ "max3107",	MAX310X_TYPE_MAX3107 },
+	{ "max3108",	MAX310X_TYPE_MAX3108 },
+};
+MODULE_DEVICE_TABLE(spi, max310x_id_table);
+
+static struct spi_driver max310x_driver = {
+	.driver = {
+		.name	= "max310x",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= max310x_probe,
+	.remove		= __devexit_p(max310x_remove),
+	.suspend	= max310x_suspend,
+	.resume		= max310x_resume,
+	.id_table	= max310x_id_table,
+};
+module_spi_driver(max310x_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
+MODULE_DESCRIPTION("MAX310X serial driver");
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index bedac0d4c9c..8cf577008ad 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -598,7 +598,7 @@ static struct psc_ops mpc512x_psc_ops = {
 };
 #endif
 
-static struct psc_ops *psc_ops;
+static const struct psc_ops *psc_ops;
 
 /* ======================================================================== */
 /* UART operations                                                          */
@@ -775,11 +775,15 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new,
 	}
 
 	if (new->c_cflag & PARENB) {
+		if (new->c_cflag & CMSPAR)
+			mr1 |= MPC52xx_PSC_MODE_PARFORCE;
+
+		/* With CMSPAR, PARODD also means high parity (same as termios) */
 		mr1 |= (new->c_cflag & PARODD) ?
 			MPC52xx_PSC_MODE_PARODD : MPC52xx_PSC_MODE_PAREVEN;
-	} else
+	} else {
 		mr1 |= MPC52xx_PSC_MODE_PARNONE;
-
+	}
 
 	mr2 = 0;
 
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 8131e2c2801..033e0bc9eba 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -896,7 +896,7 @@ static int __init msm_serial_probe(struct platform_device *pdev)
 			return PTR_ERR(msm_port->clk);
 
 	if (msm_port->is_uartdm)
-		clk_set_rate(msm_port->clk, 7372800);
+		clk_set_rate(msm_port->clk, 1843200);
 
 	port->uartclk = clk_get_rate(msm_port->clk);
 	printk(KERN_INFO "uartclk = %d\n", port->uartclk);
diff --git a/drivers/tty/serial/msm_smd_tty.c b/drivers/tty/serial/msm_smd_tty.c
index b25e6ee7144..925d1fa153d 100644
--- a/drivers/tty/serial/msm_smd_tty.c
+++ b/drivers/tty/serial/msm_smd_tty.c
@@ -223,9 +223,11 @@ static int __init smd_tty_init(void)
 		return ret;
 
 	for (i = 0; i < smd_tty_channels_len; i++) {
-		tty_port_init(&smd_tty[smd_tty_channels[i].id].port);
-		smd_tty[smd_tty_channels[i].id].port.ops = &smd_tty_port_ops;
-		tty_register_device(smd_tty_driver, smd_tty_channels[i].id, 0);
+		struct tty_port *port = &smd_tty[smd_tty_channels[i].id].port;
+		tty_port_init(port);
+		port->ops = &smd_tty_port_ops;
+		tty_port_register_device(port, smd_tty_driver,
+				smd_tty_channels[i].id, NULL);
 	}
 
 	return 0;
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 2e341b81ff8..6db3baa39a9 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -73,6 +73,7 @@
 #define AUART_CTRL0_CLKGATE			(1 << 30)
 
 #define AUART_CTRL2_CTSEN			(1 << 15)
+#define AUART_CTRL2_RTSEN			(1 << 14)
 #define AUART_CTRL2_RTS				(1 << 11)
 #define AUART_CTRL2_RXE				(1 << 9)
 #define AUART_CTRL2_TXE				(1 << 8)
@@ -259,9 +260,12 @@ static void mxs_auart_set_mctrl(struct uart_port *u, unsigned mctrl)
 
 	u32 ctrl = readl(u->membase + AUART_CTRL2);
 
-	ctrl &= ~AUART_CTRL2_RTS;
-	if (mctrl & TIOCM_RTS)
-		ctrl |= AUART_CTRL2_RTS;
+	ctrl &= ~AUART_CTRL2_RTSEN;
+	if (mctrl & TIOCM_RTS) {
+		if (tty_port_cts_enabled(&u->state->port))
+			ctrl |= AUART_CTRL2_RTSEN;
+	}
+
 	s->ctrl = mctrl;
 	writel(ctrl, u->membase + AUART_CTRL2);
 }
@@ -359,9 +363,9 @@ static void mxs_auart_settermios(struct uart_port *u,
 
 	/* figure out the hardware flow control settings */
 	if (cflag & CRTSCTS)
-		ctrl2 |= AUART_CTRL2_CTSEN;
+		ctrl2 |= AUART_CTRL2_CTSEN | AUART_CTRL2_RTSEN;
 	else
-		ctrl2 &= ~AUART_CTRL2_CTSEN;
+		ctrl2 &= ~(AUART_CTRL2_CTSEN | AUART_CTRL2_RTSEN);
 
 	/* set baud rate */
 	baud = uart_get_baud_rate(u, termios, old, 0, u->uartclk);
@@ -453,11 +457,11 @@ static void mxs_auart_shutdown(struct uart_port *u)
 
 	writel(AUART_CTRL2_UARTEN, u->membase + AUART_CTRL2_CLR);
 
-	writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_SET);
-
 	writel(AUART_INTR_RXIEN | AUART_INTR_RTIEN | AUART_INTR_CTSMIEN,
 			u->membase + AUART_INTR_CLR);
 
+	writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_SET);
+
 	clk_disable_unprepare(s->clk);
 }
 
@@ -777,6 +781,7 @@ out_free_irq:
 	auart_port[pdev->id] = NULL;
 	free_irq(s->irq, s);
 out_free_clk:
+	put_device(s->dev);
 	clk_put(s->clk);
 out_free:
 	kfree(s);
@@ -792,6 +797,7 @@ static int __devexit mxs_auart_remove(struct platform_device *pdev)
 
 	auart_port[pdev->id] = NULL;
 
+	put_device(s->dev);
 	clk_put(s->clk);
 	free_irq(s->irq, s);
 	kfree(s);
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index 34e71874a89..df443b908ca 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -105,6 +105,10 @@ static int __devinit of_platform_serial_setup(struct platform_device *ofdev,
 	port->uartclk = clk;
 	port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP
 		| UPF_FIXED_PORT | UPF_FIXED_TYPE;
+
+	if (of_find_property(np, "no-loopback-test", NULL))
+		port->flags |= UPF_SKIP_TEST;
+
 	port->dev = &ofdev->dev;
 
 	if (type == PORT_TEGRA)
@@ -144,8 +148,15 @@ static int __devinit of_platform_serial_probe(struct platform_device *ofdev)
 	switch (port_type) {
 #ifdef CONFIG_SERIAL_8250
 	case PORT_8250 ... PORT_MAX_8250:
-		ret = serial8250_register_port(&port);
+	{
+		/* For now the of bindings don't support the extra
+		   8250 specific bits */
+		struct uart_8250_port port8250;
+		memset(&port8250, 0, sizeof(port8250));
+		port8250.port = port;
+		ret = serial8250_register_8250_port(&port8250);
 		break;
+	}
 #endif
 #ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
 	case PORT_NWPSERIAL:
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index d3cda0cb2df..6ede6fd92b4 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -32,16 +32,16 @@
 #include <linux/slab.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
+#include <linux/platform_device.h>
 #include <linux/io.h>
-#include <linux/dma-mapping.h>
 #include <linux/clk.h>
 #include <linux/serial_core.h>
 #include <linux/irq.h>
 #include <linux/pm_runtime.h>
 #include <linux/of.h>
+#include <linux/gpio.h>
+#include <linux/pinctrl/consumer.h>
 
-#include <plat/dma.h>
-#include <plat/dmtimer.h>
 #include <plat/omap-serial.h>
 
 #define UART_BUILD_REVISION(x, y)	(((x) << 8) | (y))
@@ -57,8 +57,8 @@
 #define OMAP_UART_SCR_RX_TRIG_GRANU1_MASK		(1 << 7)
 
 /* FCR register bitmasks */
-#define OMAP_UART_FCR_RX_FIFO_TRIG_SHIFT		6
 #define OMAP_UART_FCR_RX_FIFO_TRIG_MASK			(0x3 << 6)
+#define OMAP_UART_FCR_TX_FIFO_TRIG_MASK			(0x3 << 4)
 
 /* MVR register bitmasks */
 #define OMAP_UART_MVR_SCHEME_SHIFT	30
@@ -71,12 +71,52 @@
 #define OMAP_UART_MVR_MAJ_SHIFT		8
 #define OMAP_UART_MVR_MIN_MASK		0x3f
 
+struct uart_omap_port {
+	struct uart_port	port;
+	struct uart_omap_dma	uart_dma;
+	struct device		*dev;
+
+	unsigned char		ier;
+	unsigned char		lcr;
+	unsigned char		mcr;
+	unsigned char		fcr;
+	unsigned char		efr;
+	unsigned char		dll;
+	unsigned char		dlh;
+	unsigned char		mdr1;
+	unsigned char		scr;
+
+	int			use_dma;
+	/*
+	 * Some bits in registers are cleared on a read, so they must
+	 * be saved whenever the register is read but the bits will not
+	 * be immediately processed.
+	 */
+	unsigned int		lsr_break_flag;
+	unsigned char		msr_saved_flags;
+	char			name[20];
+	unsigned long		port_activity;
+	u32			context_loss_cnt;
+	u32			errata;
+	u8			wakeups_enabled;
+	unsigned int		irq_pending:1;
+
+	int			DTR_gpio;
+	int			DTR_inverted;
+	int			DTR_active;
+
+	struct pm_qos_request	pm_qos_request;
+	u32			latency;
+	u32			calc_latency;
+	struct work_struct	qos_work;
+	struct pinctrl		*pins;
+};
+
+#define to_uart_omap_port(p)	((container_of((p), struct uart_omap_port, port)))
+
 static struct uart_omap_port *ui[OMAP_MAX_HSUART_PORTS];
 
 /* Forward declaration of functions */
-static void uart_tx_dma_callback(int lch, u16 ch_status, void *data);
-static void serial_omap_rxdma_poll(unsigned long uart_no);
-static int serial_omap_start_rxdma(struct uart_omap_port *up);
 static void serial_omap_mdr1_errataset(struct uart_omap_port *up, u8 mdr1);
 
 static struct workqueue_struct *serial_omap_uart_wq;
@@ -101,6 +141,46 @@ static inline void serial_omap_clear_fifos(struct uart_omap_port *up)
 	serial_out(up, UART_FCR, 0);
 }
 
+static int serial_omap_get_context_loss_count(struct uart_omap_port *up)
+{
+	struct omap_uart_port_info *pdata = up->dev->platform_data;
+
+	if (!pdata || !pdata->get_context_loss_count)
+		return 0;
+
+	return pdata->get_context_loss_count(up->dev);
+}
+
+static void serial_omap_set_forceidle(struct uart_omap_port *up)
+{
+	struct omap_uart_port_info *pdata = up->dev->platform_data;
+
+	if (!pdata || !pdata->set_forceidle)
+		return;
+
+	pdata->set_forceidle(up->dev);
+}
+
+static void serial_omap_set_noidle(struct uart_omap_port *up)
+{
+	struct omap_uart_port_info *pdata = up->dev->platform_data;
+
+	if (!pdata || !pdata->set_noidle)
+		return;
+
+	pdata->set_noidle(up->dev);
+}
+
+static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
+{
+	struct omap_uart_port_info *pdata = up->dev->platform_data;
+
+	if (!pdata || !pdata->enable_wakeup)
+		return;
+
+	pdata->enable_wakeup(up->dev, enable);
+}
+
 /*
  * serial_omap_get_divisor - calculate divisor value
  * @port: uart port info
@@ -126,151 +206,55 @@ serial_omap_get_divisor(struct uart_port *port, unsigned int baud)
 	return port->uartclk/(baud * divisor);
 }
 
-static void serial_omap_stop_rxdma(struct uart_omap_port *up)
-{
-	if (up->uart_dma.rx_dma_used) {
-		del_timer(&up->uart_dma.rx_timer);
-		omap_stop_dma(up->uart_dma.rx_dma_channel);
-		omap_free_dma(up->uart_dma.rx_dma_channel);
-		up->uart_dma.rx_dma_channel = OMAP_UART_DMA_CH_FREE;
-		up->uart_dma.rx_dma_used = false;
-		pm_runtime_mark_last_busy(&up->pdev->dev);
-		pm_runtime_put_autosuspend(&up->pdev->dev);
-	}
-}
-
 static void serial_omap_enable_ms(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
 	dev_dbg(up->port.dev, "serial_omap_enable_ms+%d\n", up->port.line);
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	up->ier |= UART_IER_MSI;
 	serial_out(up, UART_IER, up->ier);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
 static void serial_omap_stop_tx(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
-	struct omap_uart_port_info *pdata = up->pdev->dev.platform_data;
-
-	if (up->use_dma &&
-		up->uart_dma.tx_dma_channel != OMAP_UART_DMA_CH_FREE) {
-		/*
-		 * Check if dma is still active. If yes do nothing,
-		 * return. Else stop dma
-		 */
-		if (omap_get_dma_active_status(up->uart_dma.tx_dma_channel))
-			return;
-		omap_stop_dma(up->uart_dma.tx_dma_channel);
-		omap_free_dma(up->uart_dma.tx_dma_channel);
-		up->uart_dma.tx_dma_channel = OMAP_UART_DMA_CH_FREE;
-		pm_runtime_mark_last_busy(&up->pdev->dev);
-		pm_runtime_put_autosuspend(&up->pdev->dev);
-	}
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	if (up->ier & UART_IER_THRI) {
 		up->ier &= ~UART_IER_THRI;
 		serial_out(up, UART_IER, up->ier);
 	}
 
-	if (!up->use_dma && pdata && pdata->set_forceidle)
-		pdata->set_forceidle(up->pdev);
+	serial_omap_set_forceidle(up);
 
-	pm_runtime_mark_last_busy(&up->pdev->dev);
-	pm_runtime_put_autosuspend(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
 static void serial_omap_stop_rx(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
-	pm_runtime_get_sync(&up->pdev->dev);
-	if (up->use_dma)
-		serial_omap_stop_rxdma(up);
+	pm_runtime_get_sync(up->dev);
 	up->ier &= ~UART_IER_RLSI;
 	up->port.read_status_mask &= ~UART_LSR_DR;
 	serial_out(up, UART_IER, up->ier);
-	pm_runtime_mark_last_busy(&up->pdev->dev);
-	pm_runtime_put_autosuspend(&up->pdev->dev);
-}
-
-static inline void receive_chars(struct uart_omap_port *up,
-		unsigned int *status)
-{
-	struct tty_struct *tty = up->port.state->port.tty;
-	unsigned int flag, lsr = *status;
-	unsigned char ch = 0;
-	int max_count = 256;
-
-	do {
-		if (likely(lsr & UART_LSR_DR))
-			ch = serial_in(up, UART_RX);
-		flag = TTY_NORMAL;
-		up->port.icount.rx++;
-
-		if (unlikely(lsr & UART_LSR_BRK_ERROR_BITS)) {
-			/*
-			 * For statistics only
-			 */
-			if (lsr & UART_LSR_BI) {
-				lsr &= ~(UART_LSR_FE | UART_LSR_PE);
-				up->port.icount.brk++;
-				/*
-				 * We do the SysRQ and SAK checking
-				 * here because otherwise the break
-				 * may get masked by ignore_status_mask
-				 * or read_status_mask.
-				 */
-				if (uart_handle_break(&up->port))
-					goto ignore_char;
-			} else if (lsr & UART_LSR_PE) {
-				up->port.icount.parity++;
-			} else if (lsr & UART_LSR_FE) {
-				up->port.icount.frame++;
-			}
-
-			if (lsr & UART_LSR_OE)
-				up->port.icount.overrun++;
-
-			/*
-			 * Mask off conditions which should be ignored.
-			 */
-			lsr &= up->port.read_status_mask;
-
-#ifdef CONFIG_SERIAL_OMAP_CONSOLE
-			if (up->port.line == up->port.cons->index) {
-				/* Recover the break flag from console xmit */
-				lsr |= up->lsr_break_flag;
-			}
-#endif
-			if (lsr & UART_LSR_BI)
-				flag = TTY_BREAK;
-			else if (lsr & UART_LSR_PE)
-				flag = TTY_PARITY;
-			else if (lsr & UART_LSR_FE)
-				flag = TTY_FRAME;
-		}
-
-		if (uart_handle_sysrq_char(&up->port, ch))
-			goto ignore_char;
-		uart_insert_char(&up->port, lsr, UART_LSR_OE, ch, flag);
-ignore_char:
-		lsr = serial_in(up, UART_LSR);
-	} while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (max_count-- > 0));
-	spin_unlock(&up->port.lock);
-	tty_flip_buffer_push(tty);
-	spin_lock(&up->port.lock);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
-static void transmit_chars(struct uart_omap_port *up)
+static void transmit_chars(struct uart_omap_port *up, unsigned int lsr)
 {
 	struct circ_buf *xmit = &up->port.state->xmit;
 	int count;
 
+	if (!(lsr & UART_LSR_THRE))
+		return;
+
 	if (up->port.x_char) {
 		serial_out(up, UART_TX, up->port.x_char);
 		up->port.icount.tx++;
@@ -290,8 +274,11 @@ static void transmit_chars(struct uart_omap_port *up)
 			break;
 	} while (--count > 0);
 
-	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) {
+		spin_unlock(&up->port.lock);
 		uart_write_wakeup(&up->port);
+		spin_lock(&up->port.lock);
+	}
 
 	if (uart_circ_empty(xmit))
 		serial_omap_stop_tx(&up->port);
@@ -307,70 +294,13 @@ static inline void serial_omap_enable_ier_thri(struct uart_omap_port *up)
 
 static void serial_omap_start_tx(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
-	struct omap_uart_port_info *pdata = up->pdev->dev.platform_data;
-	struct circ_buf *xmit;
-	unsigned int start;
-	int ret = 0;
-
-	if (!up->use_dma) {
-		pm_runtime_get_sync(&up->pdev->dev);
-		serial_omap_enable_ier_thri(up);
-		if (pdata && pdata->set_noidle)
-			pdata->set_noidle(up->pdev);
-		pm_runtime_mark_last_busy(&up->pdev->dev);
-		pm_runtime_put_autosuspend(&up->pdev->dev);
-		return;
-	}
-
-	if (up->uart_dma.tx_dma_used)
-		return;
-
-	xmit = &up->port.state->xmit;
-
-	if (up->uart_dma.tx_dma_channel == OMAP_UART_DMA_CH_FREE) {
-		pm_runtime_get_sync(&up->pdev->dev);
-		ret = omap_request_dma(up->uart_dma.uart_dma_tx,
-				"UART Tx DMA",
-				(void *)uart_tx_dma_callback, up,
-				&(up->uart_dma.tx_dma_channel));
-
-		if (ret < 0) {
-			serial_omap_enable_ier_thri(up);
-			return;
-		}
-	}
-	spin_lock(&(up->uart_dma.tx_lock));
-	up->uart_dma.tx_dma_used = true;
-	spin_unlock(&(up->uart_dma.tx_lock));
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
-	start = up->uart_dma.tx_buf_dma_phys +
-				(xmit->tail & (UART_XMIT_SIZE - 1));
-
-	up->uart_dma.tx_buf_size = uart_circ_chars_pending(xmit);
-	/*
-	 * It is a circular buffer. See if the buffer has wounded back.
-	 * If yes it will have to be transferred in two separate dma
-	 * transfers
-	 */
-	if (start + up->uart_dma.tx_buf_size >=
-			up->uart_dma.tx_buf_dma_phys + UART_XMIT_SIZE)
-		up->uart_dma.tx_buf_size =
-			(up->uart_dma.tx_buf_dma_phys +
-			UART_XMIT_SIZE) - start;
-
-	omap_set_dma_dest_params(up->uart_dma.tx_dma_channel, 0,
-				OMAP_DMA_AMODE_CONSTANT,
-				up->uart_dma.uart_base, 0, 0);
-	omap_set_dma_src_params(up->uart_dma.tx_dma_channel, 0,
-				OMAP_DMA_AMODE_POST_INC, start, 0, 0);
-	omap_set_dma_transfer_params(up->uart_dma.tx_dma_channel,
-				OMAP_DMA_DATA_TYPE_S8,
-				up->uart_dma.tx_buf_size, 1,
-				OMAP_DMA_SYNC_ELEMENT,
-				up->uart_dma.uart_dma_tx, 0);
-	/* FIXME: Cache maintenance needed here? */
-	omap_start_dma(up->uart_dma.tx_dma_channel);
+	pm_runtime_get_sync(up->dev);
+	serial_omap_enable_ier_thri(up);
+	serial_omap_set_noidle(up);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
 static unsigned int check_modem_status(struct uart_omap_port *up)
@@ -401,76 +331,162 @@ static unsigned int check_modem_status(struct uart_omap_port *up)
 	return status;
 }
 
+static void serial_omap_rlsi(struct uart_omap_port *up, unsigned int lsr)
+{
+	unsigned int flag;
+	unsigned char ch = 0;
+
+	if (likely(lsr & UART_LSR_DR))
+		ch = serial_in(up, UART_RX);
+
+	up->port.icount.rx++;
+	flag = TTY_NORMAL;
+
+	if (lsr & UART_LSR_BI) {
+		flag = TTY_BREAK;
+		lsr &= ~(UART_LSR_FE | UART_LSR_PE);
+		up->port.icount.brk++;
+		/*
+		 * We do the SysRQ and SAK checking
+		 * here because otherwise the break
+		 * may get masked by ignore_status_mask
+		 * or read_status_mask.
+		 */
+		if (uart_handle_break(&up->port))
+			return;
+
+	}
+
+	if (lsr & UART_LSR_PE) {
+		flag = TTY_PARITY;
+		up->port.icount.parity++;
+	}
+
+	if (lsr & UART_LSR_FE) {
+		flag = TTY_FRAME;
+		up->port.icount.frame++;
+	}
+
+	if (lsr & UART_LSR_OE)
+		up->port.icount.overrun++;
+
+#ifdef CONFIG_SERIAL_OMAP_CONSOLE
+	if (up->port.line == up->port.cons->index) {
+		/* Recover the break flag from console xmit */
+		lsr |= up->lsr_break_flag;
+	}
+#endif
+	uart_insert_char(&up->port, lsr, UART_LSR_OE, 0, flag);
+}
+
+static void serial_omap_rdi(struct uart_omap_port *up, unsigned int lsr)
+{
+	unsigned char ch = 0;
+	unsigned int flag;
+
+	if (!(lsr & UART_LSR_DR))
+		return;
+
+	ch = serial_in(up, UART_RX);
+	flag = TTY_NORMAL;
+	up->port.icount.rx++;
+
+	if (uart_handle_sysrq_char(&up->port, ch))
+		return;
+
+	uart_insert_char(&up->port, lsr, UART_LSR_OE, ch, flag);
+}
+
 /**
  * serial_omap_irq() - This handles the interrupt from one port
  * @irq: uart port irq number
  * @dev_id: uart port info
  */
-static inline irqreturn_t serial_omap_irq(int irq, void *dev_id)
+static irqreturn_t serial_omap_irq(int irq, void *dev_id)
 {
 	struct uart_omap_port *up = dev_id;
+	struct tty_struct *tty = up->port.state->port.tty;
 	unsigned int iir, lsr;
-	unsigned long flags;
+	unsigned int type;
+	irqreturn_t ret = IRQ_NONE;
+	int max_count = 256;
 
-	pm_runtime_get_sync(&up->pdev->dev);
-	iir = serial_in(up, UART_IIR);
-	if (iir & UART_IIR_NO_INT) {
-		pm_runtime_mark_last_busy(&up->pdev->dev);
-		pm_runtime_put_autosuspend(&up->pdev->dev);
-		return IRQ_NONE;
-	}
+	spin_lock(&up->port.lock);
+	pm_runtime_get_sync(up->dev);
 
-	spin_lock_irqsave(&up->port.lock, flags);
-	lsr = serial_in(up, UART_LSR);
-	if (iir & UART_IIR_RLSI) {
-		if (!up->use_dma) {
-			if (lsr & UART_LSR_DR)
-				receive_chars(up, &lsr);
-		} else {
-			up->ier &= ~(UART_IER_RDI | UART_IER_RLSI);
-			serial_out(up, UART_IER, up->ier);
-			if ((serial_omap_start_rxdma(up) != 0) &&
-					(lsr & UART_LSR_DR))
-				receive_chars(up, &lsr);
+	do {
+		iir = serial_in(up, UART_IIR);
+		if (iir & UART_IIR_NO_INT)
+			break;
+
+		ret = IRQ_HANDLED;
+		lsr = serial_in(up, UART_LSR);
+
+		/* extract IRQ type from IIR register */
+		type = iir & 0x3e;
+
+		switch (type) {
+		case UART_IIR_MSI:
+			check_modem_status(up);
+			break;
+		case UART_IIR_THRI:
+			transmit_chars(up, lsr);
+			break;
+		case UART_IIR_RX_TIMEOUT:
+			/* FALLTHROUGH */
+		case UART_IIR_RDI:
+			serial_omap_rdi(up, lsr);
+			break;
+		case UART_IIR_RLSI:
+			serial_omap_rlsi(up, lsr);
+			break;
+		case UART_IIR_CTS_RTS_DSR:
+			/* simply try again */
+			break;
+		case UART_IIR_XOFF:
+			/* FALLTHROUGH */
+		default:
+			break;
 		}
-	}
+	} while (!(iir & UART_IIR_NO_INT) && max_count--);
 
-	check_modem_status(up);
-	if ((lsr & UART_LSR_THRE) && (iir & UART_IIR_THRI))
-		transmit_chars(up);
+	spin_unlock(&up->port.lock);
 
-	spin_unlock_irqrestore(&up->port.lock, flags);
-	pm_runtime_mark_last_busy(&up->pdev->dev);
-	pm_runtime_put_autosuspend(&up->pdev->dev);
+	tty_flip_buffer_push(tty);
 
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	up->port_activity = jiffies;
-	return IRQ_HANDLED;
+
+	return ret;
 }
 
 static unsigned int serial_omap_tx_empty(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned long flags = 0;
 	unsigned int ret = 0;
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	dev_dbg(up->port.dev, "serial_omap_tx_empty+%d\n", up->port.line);
 	spin_lock_irqsave(&up->port.lock, flags);
 	ret = serial_in(up, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
 	spin_unlock_irqrestore(&up->port.lock, flags);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	return ret;
 }
 
 static unsigned int serial_omap_get_mctrl(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned int status;
 	unsigned int ret = 0;
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	status = check_modem_status(up);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 
 	dev_dbg(up->port.dev, "serial_omap_get_mctrl+%d\n", up->port.line);
 
@@ -487,7 +503,7 @@ static unsigned int serial_omap_get_mctrl(struct uart_port *port)
 
 static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned char mcr = 0;
 
 	dev_dbg(up->port.dev, "serial_omap_set_mctrl+%d\n", up->port.line);
@@ -502,20 +518,31 @@ static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	if (mctrl & TIOCM_LOOP)
 		mcr |= UART_MCR_LOOP;
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	up->mcr = serial_in(up, UART_MCR);
 	up->mcr |= mcr;
 	serial_out(up, UART_MCR, up->mcr);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
+
+	if (gpio_is_valid(up->DTR_gpio) &&
+	    !!(mctrl & TIOCM_DTR) != up->DTR_active) {
+		up->DTR_active = !up->DTR_active;
+		if (gpio_cansleep(up->DTR_gpio))
+			schedule_work(&up->qos_work);
+		else
+			gpio_set_value(up->DTR_gpio,
+				       up->DTR_active != up->DTR_inverted);
+	}
 }
 
 static void serial_omap_break_ctl(struct uart_port *port, int break_state)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned long flags = 0;
 
 	dev_dbg(up->port.dev, "serial_omap_break_ctl+%d\n", up->port.line);
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	spin_lock_irqsave(&up->port.lock, flags);
 	if (break_state == -1)
 		up->lcr |= UART_LCR_SBC;
@@ -523,12 +550,13 @@ static void serial_omap_break_ctl(struct uart_port *port, int break_state)
 		up->lcr &= ~UART_LCR_SBC;
 	serial_out(up, UART_LCR, up->lcr);
 	spin_unlock_irqrestore(&up->port.lock, flags);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
 static int serial_omap_startup(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned long flags = 0;
 	int retval;
 
@@ -542,7 +570,7 @@ static int serial_omap_startup(struct uart_port *port)
 
 	dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	/*
 	 * Clear the FIFO buffers and disable them.
 	 * (they will be reenabled in set_termios())
@@ -573,20 +601,6 @@ static int serial_omap_startup(struct uart_port *port)
 	spin_unlock_irqrestore(&up->port.lock, flags);
 
 	up->msr_saved_flags = 0;
-	if (up->use_dma) {
-		free_page((unsigned long)up->port.state->xmit.buf);
-		up->port.state->xmit.buf = dma_alloc_coherent(NULL,
-			UART_XMIT_SIZE,
-			(dma_addr_t *)&(up->uart_dma.tx_buf_dma_phys),
-			0);
-		init_timer(&(up->uart_dma.rx_timer));
-		up->uart_dma.rx_timer.function = serial_omap_rxdma_poll;
-		up->uart_dma.rx_timer.data = up->port.line;
-		/* Currently the buffer size is 4KB. Can increase it */
-		up->uart_dma.rx_buf = dma_alloc_coherent(NULL,
-			up->uart_dma.rx_buf_size,
-			(dma_addr_t *)&(up->uart_dma.rx_buf_dma_phys), 0);
-	}
 	/*
 	 * Finally, enable interrupts. Note: Modem status interrupts
 	 * are set via set_termios(), which will be occurring imminently
@@ -598,20 +612,20 @@ static int serial_omap_startup(struct uart_port *port)
 	/* Enable module level wake up */
 	serial_out(up, UART_OMAP_WER, OMAP_UART_WER_MOD_WKUP);
 
-	pm_runtime_mark_last_busy(&up->pdev->dev);
-	pm_runtime_put_autosuspend(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	up->port_activity = jiffies;
 	return 0;
 }
 
 static void serial_omap_shutdown(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned long flags = 0;
 
 	dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->port.line);
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	/*
 	 * Disable interrupts from this port
 	 */
@@ -634,19 +648,9 @@ static void serial_omap_shutdown(struct uart_port *port)
 	 */
 	if (serial_in(up, UART_LSR) & UART_LSR_DR)
 		(void) serial_in(up, UART_RX);
-	if (up->use_dma) {
-		dma_free_coherent(up->port.dev,
-			UART_XMIT_SIZE,	up->port.state->xmit.buf,
-			up->uart_dma.tx_buf_dma_phys);
-		up->port.state->xmit.buf = NULL;
-		serial_omap_stop_rx(port);
-		dma_free_coherent(up->port.dev,
-			up->uart_dma.rx_buf_size, up->uart_dma.rx_buf,
-			up->uart_dma.rx_buf_dma_phys);
-		up->uart_dma.rx_buf = NULL;
-	}
 
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	free_irq(up->port.irq, up);
 }
 
@@ -667,19 +671,19 @@ serial_omap_configure_xonxoff
 
 	/*
 	 * IXON Flag:
-	 * Enable XON/XOFF flow control on output.
-	 * Transmit XON1, XOFF1
+	 * Flow control for OMAP.TX
+	 * OMAP.RX should listen for XON/XOFF
 	 */
 	if (termios->c_iflag & IXON)
-		up->efr |= OMAP_UART_SW_TX;
+		up->efr |= OMAP_UART_SW_RX;
 
 	/*
 	 * IXOFF Flag:
-	 * Enable XON/XOFF flow control on input.
-	 * Receiver compares XON1, XOFF1.
+	 * Flow control for OMAP.RX
+	 * OMAP.TX should send XON/XOFF
 	 */
 	if (termios->c_iflag & IXOFF)
-		up->efr |= OMAP_UART_SW_RX;
+		up->efr |= OMAP_UART_SW_TX;
 
 	serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
@@ -715,13 +719,16 @@ static void serial_omap_uart_qos_work(struct work_struct *work)
 						qos_work);
 
 	pm_qos_update_request(&up->pm_qos_request, up->latency);
+	if (gpio_is_valid(up->DTR_gpio))
+		gpio_set_value_cansleep(up->DTR_gpio,
+					up->DTR_active != up->DTR_inverted);
 }
 
 static void
 serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 			struct ktermios *old)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned char cval = 0;
 	unsigned char efr = 0;
 	unsigned long flags = 0;
@@ -768,14 +775,12 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	up->fcr = UART_FCR_R_TRIG_01 | UART_FCR_T_TRIG_01 |
 			UART_FCR_ENABLE_FIFO;
-	if (up->use_dma)
-		up->fcr |= UART_FCR_DMA_SELECT;
 
 	/*
 	 * Ok, we're now changing the port state. Do it with
 	 * interrupts disabled.
 	 */
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	spin_lock_irqsave(&up->port.lock, flags);
 
 	/*
@@ -845,14 +850,13 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	up->scr |= OMAP_UART_SCR_RX_TRIG_GRANU1_MASK;
 
-	if (up->use_dma) {
-		serial_out(up, UART_TI752_TLR, 0);
-		up->scr |= UART_FCR_TRIGGER_4;
-	} else {
-		/* Set receive FIFO threshold to 1 byte */
-		up->fcr &= ~OMAP_UART_FCR_RX_FIFO_TRIG_MASK;
-		up->fcr |= (0x1 << OMAP_UART_FCR_RX_FIFO_TRIG_SHIFT);
-	}
+	/* Set receive FIFO threshold to 16 characters and
+	 * transmit FIFO threshold to 16 spaces
+	 */
+	up->fcr &= ~OMAP_UART_FCR_RX_FIFO_TRIG_MASK;
+	up->fcr &= ~OMAP_UART_FCR_TX_FIFO_TRIG_MASK;
+	up->fcr |= UART_FCR6_R_TRIGGER_16 | UART_FCR6_T_TRIGGER_24 |
+		UART_FCR_ENABLE_FIFO;
 
 	serial_out(up, UART_FCR, up->fcr);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
@@ -924,20 +928,30 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	serial_omap_configure_xonxoff(up, termios);
 
 	spin_unlock_irqrestore(&up->port.lock, flags);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	dev_dbg(up->port.dev, "serial_omap_set_termios+%d\n", up->port.line);
 }
 
+static int serial_omap_set_wake(struct uart_port *port, unsigned int state)
+{
+	struct uart_omap_port *up = to_uart_omap_port(port);
+
+	serial_omap_enable_wakeup(up, state);
+
+	return 0;
+}
+
 static void
 serial_omap_pm(struct uart_port *port, unsigned int state,
 	       unsigned int oldstate)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned char efr;
 
 	dev_dbg(up->port.dev, "serial_omap_pm+%d\n", up->port.line);
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
 	efr = serial_in(up, UART_EFR);
 	serial_out(up, UART_EFR, efr | UART_EFR_ECB);
@@ -948,14 +962,15 @@ serial_omap_pm(struct uart_port *port, unsigned int state,
 	serial_out(up, UART_EFR, efr);
 	serial_out(up, UART_LCR, 0);
 
-	if (!device_may_wakeup(&up->pdev->dev)) {
+	if (!device_may_wakeup(up->dev)) {
 		if (!state)
-			pm_runtime_forbid(&up->pdev->dev);
+			pm_runtime_forbid(up->dev);
 		else
-			pm_runtime_allow(&up->pdev->dev);
+			pm_runtime_allow(up->dev);
 	}
 
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
 static void serial_omap_release_port(struct uart_port *port)
@@ -971,7 +986,7 @@ static int serial_omap_request_port(struct uart_port *port)
 
 static void serial_omap_config_port(struct uart_port *port, int flags)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
 	dev_dbg(up->port.dev, "serial_omap_config_port+%d\n",
 							up->port.line);
@@ -989,7 +1004,7 @@ serial_omap_verify_port(struct uart_port *port, struct serial_struct *ser)
 static const char *
 serial_omap_type(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
 	dev_dbg(up->port.dev, "serial_omap_type+%d\n", up->port.line);
 	return up->name;
@@ -1032,26 +1047,33 @@ static inline void wait_for_xmitr(struct uart_omap_port *up)
 
 static void serial_omap_poll_put_char(struct uart_port *port, unsigned char ch)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	wait_for_xmitr(up);
 	serial_out(up, UART_TX, ch);
-	pm_runtime_put(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 }
 
 static int serial_omap_poll_get_char(struct uart_port *port)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 	unsigned int status;
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 	status = serial_in(up, UART_LSR);
-	if (!(status & UART_LSR_DR))
-		return NO_POLL_CHAR;
+	if (!(status & UART_LSR_DR)) {
+		status = NO_POLL_CHAR;
+		goto out;
+	}
 
 	status = serial_in(up, UART_RX);
-	pm_runtime_put(&up->pdev->dev);
+
+out:
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
+
 	return status;
 }
 
@@ -1065,7 +1087,7 @@ static struct uart_driver serial_omap_reg;
 
 static void serial_omap_console_putchar(struct uart_port *port, int ch)
 {
-	struct uart_omap_port *up = (struct uart_omap_port *)port;
+	struct uart_omap_port *up = to_uart_omap_port(port);
 
 	wait_for_xmitr(up);
 	serial_out(up, UART_TX, ch);
@@ -1080,7 +1102,7 @@ serial_omap_console_write(struct console *co, const char *s,
 	unsigned int ier;
 	int locked = 1;
 
-	pm_runtime_get_sync(&up->pdev->dev);
+	pm_runtime_get_sync(up->dev);
 
 	local_irq_save(flags);
 	if (up->port.sysrq)
@@ -1114,8 +1136,8 @@ serial_omap_console_write(struct console *co, const char *s,
 	if (up->msr_saved_flags)
 		check_modem_status(up);
 
-	pm_runtime_mark_last_busy(&up->pdev->dev);
-	pm_runtime_put_autosuspend(&up->pdev->dev);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	if (locked)
 		spin_unlock(&up->port.lock);
 	local_irq_restore(flags);
@@ -1179,6 +1201,7 @@ static struct uart_ops serial_omap_pops = {
 	.shutdown	= serial_omap_shutdown,
 	.set_termios	= serial_omap_set_termios,
 	.pm		= serial_omap_pm,
+	.set_wake	= serial_omap_set_wake,
 	.type		= serial_omap_type,
 	.release_port	= serial_omap_release_port,
 	.request_port	= serial_omap_request_port,
@@ -1203,10 +1226,8 @@ static int serial_omap_suspend(struct device *dev)
 {
 	struct uart_omap_port *up = dev_get_drvdata(dev);
 
-	if (up) {
-		uart_suspend_port(&serial_omap_reg, &up->port);
-		flush_work_sync(&up->qos_work);
-	}
+	uart_suspend_port(&serial_omap_reg, &up->port);
+	flush_work(&up->qos_work);
 
 	return 0;
 }
@@ -1215,156 +1236,13 @@ static int serial_omap_resume(struct device *dev)
 {
 	struct uart_omap_port *up = dev_get_drvdata(dev);
 
-	if (up)
-		uart_resume_port(&serial_omap_reg, &up->port);
+	uart_resume_port(&serial_omap_reg, &up->port);
+
 	return 0;
 }
 #endif
 
-static void serial_omap_rxdma_poll(unsigned long uart_no)
-{
-	struct uart_omap_port *up = ui[uart_no];
-	unsigned int curr_dma_pos, curr_transmitted_size;
-	int ret = 0;
-
-	curr_dma_pos = omap_get_dma_dst_pos(up->uart_dma.rx_dma_channel);
-	if ((curr_dma_pos == up->uart_dma.prev_rx_dma_pos) ||
-			     (curr_dma_pos == 0)) {
-		if (jiffies_to_msecs(jiffies - up->port_activity) <
-						up->uart_dma.rx_timeout) {
-			mod_timer(&up->uart_dma.rx_timer, jiffies +
-				usecs_to_jiffies(up->uart_dma.rx_poll_rate));
-		} else {
-			serial_omap_stop_rxdma(up);
-			up->ier |= (UART_IER_RDI | UART_IER_RLSI);
-			serial_out(up, UART_IER, up->ier);
-		}
-		return;
-	}
-
-	curr_transmitted_size = curr_dma_pos -
-					up->uart_dma.prev_rx_dma_pos;
-	up->port.icount.rx += curr_transmitted_size;
-	tty_insert_flip_string(up->port.state->port.tty,
-			up->uart_dma.rx_buf +
-			(up->uart_dma.prev_rx_dma_pos -
-			up->uart_dma.rx_buf_dma_phys),
-			curr_transmitted_size);
-	tty_flip_buffer_push(up->port.state->port.tty);
-	up->uart_dma.prev_rx_dma_pos = curr_dma_pos;
-	if (up->uart_dma.rx_buf_size +
-			up->uart_dma.rx_buf_dma_phys == curr_dma_pos) {
-		ret = serial_omap_start_rxdma(up);
-		if (ret < 0) {
-			serial_omap_stop_rxdma(up);
-			up->ier |= (UART_IER_RDI | UART_IER_RLSI);
-			serial_out(up, UART_IER, up->ier);
-		}
-	} else  {
-		mod_timer(&up->uart_dma.rx_timer, jiffies +
-			usecs_to_jiffies(up->uart_dma.rx_poll_rate));
-	}
-	up->port_activity = jiffies;
-}
-
-static void uart_rx_dma_callback(int lch, u16 ch_status, void *data)
-{
-	return;
-}
-
-static int serial_omap_start_rxdma(struct uart_omap_port *up)
-{
-	int ret = 0;
-
-	if (up->uart_dma.rx_dma_channel == -1) {
-		pm_runtime_get_sync(&up->pdev->dev);
-		ret = omap_request_dma(up->uart_dma.uart_dma_rx,
-				"UART Rx DMA",
-				(void *)uart_rx_dma_callback, up,
-				&(up->uart_dma.rx_dma_channel));
-		if (ret < 0)
-			return ret;
-
-		omap_set_dma_src_params(up->uart_dma.rx_dma_channel, 0,
-				OMAP_DMA_AMODE_CONSTANT,
-				up->uart_dma.uart_base, 0, 0);
-		omap_set_dma_dest_params(up->uart_dma.rx_dma_channel, 0,
-				OMAP_DMA_AMODE_POST_INC,
-				up->uart_dma.rx_buf_dma_phys, 0, 0);
-		omap_set_dma_transfer_params(up->uart_dma.rx_dma_channel,
-				OMAP_DMA_DATA_TYPE_S8,
-				up->uart_dma.rx_buf_size, 1,
-				OMAP_DMA_SYNC_ELEMENT,
-				up->uart_dma.uart_dma_rx, 0);
-	}
-	up->uart_dma.prev_rx_dma_pos = up->uart_dma.rx_buf_dma_phys;
-	/* FIXME: Cache maintenance needed here? */
-	omap_start_dma(up->uart_dma.rx_dma_channel);
-	mod_timer(&up->uart_dma.rx_timer, jiffies +
-				usecs_to_jiffies(up->uart_dma.rx_poll_rate));
-	up->uart_dma.rx_dma_used = true;
-	return ret;
-}
-
-static void serial_omap_continue_tx(struct uart_omap_port *up)
-{
-	struct circ_buf *xmit = &up->port.state->xmit;
-	unsigned int start = up->uart_dma.tx_buf_dma_phys
-			+ (xmit->tail & (UART_XMIT_SIZE - 1));
-
-	if (uart_circ_empty(xmit))
-		return;
-
-	up->uart_dma.tx_buf_size = uart_circ_chars_pending(xmit);
-	/*
-	 * It is a circular buffer. See if the buffer has wounded back.
-	 * If yes it will have to be transferred in two separate dma
-	 * transfers
-	 */
-	if (start + up->uart_dma.tx_buf_size >=
-			up->uart_dma.tx_buf_dma_phys + UART_XMIT_SIZE)
-		up->uart_dma.tx_buf_size =
-			(up->uart_dma.tx_buf_dma_phys + UART_XMIT_SIZE) - start;
-	omap_set_dma_dest_params(up->uart_dma.tx_dma_channel, 0,
-				OMAP_DMA_AMODE_CONSTANT,
-				up->uart_dma.uart_base, 0, 0);
-	omap_set_dma_src_params(up->uart_dma.tx_dma_channel, 0,
-				OMAP_DMA_AMODE_POST_INC, start, 0, 0);
-	omap_set_dma_transfer_params(up->uart_dma.tx_dma_channel,
-				OMAP_DMA_DATA_TYPE_S8,
-				up->uart_dma.tx_buf_size, 1,
-				OMAP_DMA_SYNC_ELEMENT,
-				up->uart_dma.uart_dma_tx, 0);
-	/* FIXME: Cache maintenance needed here? */
-	omap_start_dma(up->uart_dma.tx_dma_channel);
-}
-
-static void uart_tx_dma_callback(int lch, u16 ch_status, void *data)
-{
-	struct uart_omap_port *up = (struct uart_omap_port *)data;
-	struct circ_buf *xmit = &up->port.state->xmit;
-
-	xmit->tail = (xmit->tail + up->uart_dma.tx_buf_size) & \
-			(UART_XMIT_SIZE - 1);
-	up->port.icount.tx += up->uart_dma.tx_buf_size;
-
-	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-		uart_write_wakeup(&up->port);
-
-	if (uart_circ_empty(xmit)) {
-		spin_lock(&(up->uart_dma.tx_lock));
-		serial_omap_stop_tx(&up->port);
-		up->uart_dma.tx_dma_used = false;
-		spin_unlock(&(up->uart_dma.tx_lock));
-	} else {
-		omap_stop_dma(up->uart_dma.tx_dma_channel);
-		serial_omap_continue_tx(up);
-	}
-	up->port_activity = jiffies;
-	return;
-}
-
-static void omap_serial_fill_features_erratas(struct uart_omap_port *up)
+static void __devinit omap_serial_fill_features_erratas(struct uart_omap_port *up)
 {
 	u32 mvr, scheme;
 	u16 revision, major, minor;
@@ -1389,7 +1267,7 @@ static void omap_serial_fill_features_erratas(struct uart_omap_port *up)
 		minor = (mvr & OMAP_UART_MVR_MIN_MASK);
 		break;
 	default:
-		dev_warn(&up->pdev->dev,
+		dev_warn(up->dev,
 			"Unknown %s revision, defaulting to highest\n",
 			up->name);
 		/* highest possible revision */
@@ -1417,7 +1295,7 @@ static void omap_serial_fill_features_erratas(struct uart_omap_port *up)
 	}
 }
 
-static struct omap_uart_port_info *of_get_uart_port_info(struct device *dev)
+static __devinit struct omap_uart_port_info *of_get_uart_port_info(struct device *dev)
 {
 	struct omap_uart_port_info *omap_up_info;
 
@@ -1430,12 +1308,12 @@ static struct omap_uart_port_info *of_get_uart_port_info(struct device *dev)
 	return omap_up_info;
 }
 
-static int serial_omap_probe(struct platform_device *pdev)
+static int __devinit serial_omap_probe(struct platform_device *pdev)
 {
 	struct uart_omap_port	*up;
-	struct resource		*mem, *irq, *dma_tx, *dma_rx;
+	struct resource		*mem, *irq;
 	struct omap_uart_port_info *omap_up_info = pdev->dev.platform_data;
-	int ret = -ENOSPC;
+	int ret;
 
 	if (pdev->dev.of_node)
 		omap_up_info = of_get_uart_port_info(&pdev->dev);
@@ -1458,19 +1336,30 @@ static int serial_omap_probe(struct platform_device *pdev)
 		return -EBUSY;
 	}
 
-	dma_rx = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
-	if (!dma_rx)
-		return -ENXIO;
-
-	dma_tx = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
-	if (!dma_tx)
-		return -ENXIO;
+	if (gpio_is_valid(omap_up_info->DTR_gpio) &&
+	    omap_up_info->DTR_present) {
+		ret = gpio_request(omap_up_info->DTR_gpio, "omap-serial");
+		if (ret < 0)
+			return ret;
+		ret = gpio_direction_output(omap_up_info->DTR_gpio,
+					    omap_up_info->DTR_inverted);
+		if (ret < 0)
+			return ret;
+	}
 
 	up = devm_kzalloc(&pdev->dev, sizeof(*up), GFP_KERNEL);
 	if (!up)
 		return -ENOMEM;
 
-	up->pdev = pdev;
+	if (gpio_is_valid(omap_up_info->DTR_gpio) &&
+	    omap_up_info->DTR_present) {
+		up->DTR_gpio = omap_up_info->DTR_gpio;
+		up->DTR_inverted = omap_up_info->DTR_inverted;
+	} else
+		up->DTR_gpio = -EINVAL;
+	up->DTR_active = 0;
+
+	up->dev = &pdev->dev;
 	up->port.dev = &pdev->dev;
 	up->port.type = PORT_OMAP;
 	up->port.iotype = UPIO_MEM;
@@ -1492,6 +1381,13 @@ static int serial_omap_probe(struct platform_device *pdev)
 		goto err_port_line;
 	}
 
+	up->pins = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(up->pins)) {
+		dev_warn(&pdev->dev, "did not get pins for uart%i error: %li\n",
+			 up->port.line, PTR_ERR(up->pins));
+		up->pins = NULL;
+	}
+
 	sprintf(up->name, "OMAP UART%d", up->port.line);
 	up->port.mapbase = mem->start;
 	up->port.membase = devm_ioremap(&pdev->dev, mem->start,
@@ -1509,20 +1405,6 @@ static int serial_omap_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, "No clock speed specified: using default:"
 						"%d\n", DEFAULT_CLK_SPEED);
 	}
-	up->uart_dma.uart_base = mem->start;
-
-	if (omap_up_info->dma_enabled) {
-		up->uart_dma.uart_dma_tx = dma_tx->start;
-		up->uart_dma.uart_dma_rx = dma_rx->start;
-		up->use_dma = 1;
-		up->uart_dma.rx_buf_size = omap_up_info->dma_rx_buf_size;
-		up->uart_dma.rx_timeout = omap_up_info->dma_rx_timeout;
-		up->uart_dma.rx_poll_rate = omap_up_info->dma_rx_poll_rate;
-		spin_lock_init(&(up->uart_dma.tx_lock));
-		spin_lock_init(&(up->uart_dma.rx_lock));
-		up->uart_dma.tx_dma_channel = OMAP_UART_DMA_CH_FREE;
-		up->uart_dma.rx_dma_channel = OMAP_UART_DMA_CH_FREE;
-	}
 
 	up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
 	up->calc_latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
@@ -1531,12 +1413,13 @@ static int serial_omap_probe(struct platform_device *pdev)
 	serial_omap_uart_wq = create_singlethread_workqueue(up->name);
 	INIT_WORK(&up->qos_work, serial_omap_uart_qos_work);
 
+	platform_set_drvdata(pdev, up);
+	pm_runtime_enable(&pdev->dev);
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev,
 			omap_up_info->autosuspend_timeout);
 
 	pm_runtime_irq_safe(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
 
 	omap_serial_fill_features_erratas(up);
@@ -1548,8 +1431,8 @@ static int serial_omap_probe(struct platform_device *pdev)
 	if (ret != 0)
 		goto err_add_port;
 
-	pm_runtime_put(&pdev->dev);
-	platform_set_drvdata(pdev, up);
+	pm_runtime_mark_last_busy(up->dev);
+	pm_runtime_put_autosuspend(up->dev);
 	return 0;
 
 err_add_port:
@@ -1562,17 +1445,15 @@ err_port_line:
 	return ret;
 }
 
-static int serial_omap_remove(struct platform_device *dev)
+static int __devexit serial_omap_remove(struct platform_device *dev)
 {
 	struct uart_omap_port *up = platform_get_drvdata(dev);
 
-	if (up) {
-		pm_runtime_disable(&up->pdev->dev);
-		uart_remove_one_port(&serial_omap_reg, &up->port);
-		pm_qos_remove_request(&up->pm_qos_request);
-	}
+	pm_runtime_put_sync(up->dev);
+	pm_runtime_disable(up->dev);
+	uart_remove_one_port(&serial_omap_reg, &up->port);
+	pm_qos_remove_request(&up->pm_qos_request);
 
-	platform_set_drvdata(dev, NULL);
 	return 0;
 }
 
@@ -1602,7 +1483,7 @@ static void serial_omap_mdr1_errataset(struct uart_omap_port *up, u8 mdr1)
 		timeout--;
 		if (!timeout) {
 			/* Should *never* happen. we warn and carry on */
-			dev_crit(&up->pdev->dev, "Errata i202: timedout %x\n",
+			dev_crit(up->dev, "Errata i202: timedout %x\n",
 						serial_in(up, UART_LSR));
 			break;
 		}
@@ -1648,29 +1529,23 @@ static int serial_omap_runtime_suspend(struct device *dev)
 	if (!up)
 		return -EINVAL;
 
-	if (!pdata || !pdata->enable_wakeup)
+	if (!pdata)
 		return 0;
 
-	if (pdata->get_context_loss_count)
-		up->context_loss_cnt = pdata->get_context_loss_count(dev);
+	up->context_loss_cnt = serial_omap_get_context_loss_count(up);
 
 	if (device_may_wakeup(dev)) {
 		if (!up->wakeups_enabled) {
-			pdata->enable_wakeup(up->pdev, true);
+			serial_omap_enable_wakeup(up, true);
 			up->wakeups_enabled = true;
 		}
 	} else {
 		if (up->wakeups_enabled) {
-			pdata->enable_wakeup(up->pdev, false);
+			serial_omap_enable_wakeup(up, false);
 			up->wakeups_enabled = false;
 		}
 	}
 
-	/* Errata i291 */
-	if (up->use_dma && pdata->set_forceidle &&
-			(up->errata & UART_ERRATA_i291_DMA_FORCEIDLE))
-		pdata->set_forceidle(up->pdev);
-
 	up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
 	schedule_work(&up->qos_work);
 
@@ -1680,24 +1555,14 @@ static int serial_omap_runtime_suspend(struct device *dev)
 static int serial_omap_runtime_resume(struct device *dev)
 {
 	struct uart_omap_port *up = dev_get_drvdata(dev);
-	struct omap_uart_port_info *pdata = dev->platform_data;
-
-	if (up && pdata) {
-		if (pdata->get_context_loss_count) {
-			u32 loss_cnt = pdata->get_context_loss_count(dev);
 
-			if (up->context_loss_cnt != loss_cnt)
-				serial_omap_restore_context(up);
-		}
+	u32 loss_cnt = serial_omap_get_context_loss_count(up);
 
-		/* Errata i291 */
-		if (up->use_dma && pdata->set_noidle &&
-				(up->errata & UART_ERRATA_i291_DMA_FORCEIDLE))
-			pdata->set_noidle(up->pdev);
+	if (up->context_loss_cnt != loss_cnt)
+		serial_omap_restore_context(up);
 
-		up->latency = up->calc_latency;
-		schedule_work(&up->qos_work);
-	}
+	up->latency = up->calc_latency;
+	schedule_work(&up->qos_work);
 
 	return 0;
 }
@@ -1721,7 +1586,7 @@ MODULE_DEVICE_TABLE(of, omap_serial_of_match);
 
 static struct platform_driver serial_omap_driver = {
 	.probe          = serial_omap_probe,
-	.remove         = serial_omap_remove,
+	.remove         = __devexit_p(serial_omap_remove),
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.pm	= &serial_omap_dev_pm_ops,
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 558ce8509a9..4cd6c238152 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -979,6 +979,10 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
 	priv->tx_dma_use = 1;
 
 	priv->sg_tx_p = kzalloc(sizeof(struct scatterlist)*num, GFP_ATOMIC);
+	if (!priv->sg_tx_p) {
+		dev_err(priv->port.dev, "%s:kzalloc Failed\n", __func__);
+		return 0;
+	}
 
 	sg_init_table(priv->sg_tx_p, num); /* Initialize SG table */
 	sg = priv->sg_tx_p;
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 654755a990d..333c8d012b0 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1348,10 +1348,16 @@ static int pmz_verify_port(struct uart_port *port, struct serial_struct *ser)
 static int pmz_poll_get_char(struct uart_port *port)
 {
 	struct uart_pmac_port *uap = (struct uart_pmac_port *)port;
+	int tries = 2;
 
-	while ((read_zsreg(uap, R0) & Rx_CH_AV) == 0)
-		udelay(5);
-	return read_zsdata(uap);
+	while (tries) {
+		if ((read_zsreg(uap, R0) & Rx_CH_AV) != 0)
+			return read_zsdata(uap);
+		if (tries--)
+			udelay(5);
+	}
+
+	return NO_POLL_CHAR;
 }
 
 static void pmz_poll_put_char(struct uart_port *port, unsigned char c)
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 5847a4b855f..9033fc6e0e4 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -670,9 +670,19 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count)
 {
 	struct uart_pxa_port *up = serial_pxa_ports[co->index];
 	unsigned int ier;
+	unsigned long flags;
+	int locked = 1;
 
 	clk_prepare_enable(up->clk);
 
+	local_irq_save(flags);
+	if (up->port.sysrq)
+		locked = 0;
+	else if (oops_in_progress)
+		locked = spin_trylock(&up->port.lock);
+	else
+		spin_lock(&up->port.lock);
+
 	/*
 	 *	First save the IER then disable the interrupts
 	 */
@@ -688,6 +698,10 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count)
 	wait_for_xmitr(up);
 	serial_out(up, UART_IER, ier);
 
+	if (locked)
+		spin_unlock(&up->port.lock);
+	local_irq_restore(flags);
+
 	clk_disable_unprepare(up->clk);
 }
 
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 02d07bfcfa8..7f04717176a 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -82,7 +82,7 @@ static inline const char *s3c24xx_serial_portname(struct uart_port *port)
 
 static int s3c24xx_serial_txempty_nofifo(struct uart_port *port)
 {
-	return (rd_regl(port, S3C2410_UTRSTAT) & S3C2410_UTRSTAT_TXE);
+	return rd_regl(port, S3C2410_UTRSTAT) & S3C2410_UTRSTAT_TXE;
 }
 
 /*
@@ -268,7 +268,7 @@ s3c24xx_serial_rx_chars(int irq, void *dev_id)
 				dbg("break!\n");
 				port->icount.brk++;
 				if (uart_handle_break(port))
-				    goto ignore_char;
+					goto ignore_char;
 			}
 
 			if (uerstat & S3C2410_UERSTAT_FRAME)
@@ -459,7 +459,7 @@ static int s3c24xx_serial_startup(struct uart_port *port)
 			  s3c24xx_serial_portname(port), ourport);
 
 	if (ret != 0) {
-		printk(KERN_ERR "cannot get irq %d\n", ourport->rx_irq);
+		dev_err(port->dev, "cannot get irq %d\n", ourport->rx_irq);
 		return ret;
 	}
 
@@ -473,7 +473,7 @@ static int s3c24xx_serial_startup(struct uart_port *port)
 			  s3c24xx_serial_portname(port), ourport);
 
 	if (ret) {
-		printk(KERN_ERR "cannot get irq %d\n", ourport->tx_irq);
+		dev_err(port->dev, "cannot get irq %d\n", ourport->tx_irq);
 		goto err;
 	}
 
@@ -502,7 +502,7 @@ static int s3c64xx_serial_startup(struct uart_port *port)
 	ret = request_irq(port->irq, s3c64xx_serial_handle_irq, IRQF_SHARED,
 			  s3c24xx_serial_portname(port), ourport);
 	if (ret) {
-		printk(KERN_ERR "cannot get irq %d\n", port->irq);
+		dev_err(port->dev, "cannot get irq %d\n", port->irq);
 		return ret;
 	}
 
@@ -529,7 +529,7 @@ static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
 
 	switch (level) {
 	case 3:
-		if (!IS_ERR(ourport->baudclk) && ourport->baudclk != NULL)
+		if (!IS_ERR(ourport->baudclk))
 			clk_disable(ourport->baudclk);
 
 		clk_disable(ourport->clk);
@@ -538,12 +538,12 @@ static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
 	case 0:
 		clk_enable(ourport->clk);
 
-		if (!IS_ERR(ourport->baudclk) && ourport->baudclk != NULL)
+		if (!IS_ERR(ourport->baudclk))
 			clk_enable(ourport->baudclk);
 
 		break;
 	default:
-		printk(KERN_ERR "s3c24xx_serial: unknown pm %d\n", level);
+		dev_err(port->dev, "s3c24xx_serial: unknown pm %d\n", level);
 	}
 }
 
@@ -604,7 +604,6 @@ static unsigned int s3c24xx_serial_getclk(struct s3c24xx_uart_port *ourport,
 	char clkname[MAX_CLK_NAME_LENGTH];
 	int calc_deviation, deviation = (1 << 30) - 1;
 
-	*best_clk = NULL;
 	clk_sel = (ourport->cfg->clk_sel) ? ourport->cfg->clk_sel :
 			ourport->info->def_clk_sel;
 	for (cnt = 0; cnt < info->num_clks; cnt++) {
@@ -613,7 +612,7 @@ static unsigned int s3c24xx_serial_getclk(struct s3c24xx_uart_port *ourport,
 
 		sprintf(clkname, "clk_uart_baud%d", cnt);
 		clk = clk_get(ourport->port.dev, clkname);
-		if (IS_ERR_OR_NULL(clk))
+		if (IS_ERR(clk))
 			continue;
 
 		rate = clk_get_rate(clk);
@@ -684,7 +683,7 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 {
 	struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	struct clk *clk = NULL;
+	struct clk *clk = ERR_PTR(-EINVAL);
 	unsigned long flags;
 	unsigned int baud, quot, clk_sel = 0;
 	unsigned int ulcon;
@@ -705,7 +704,7 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 	quot = s3c24xx_serial_getclk(ourport, baud, &clk, &clk_sel);
 	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST)
 		quot = port->custom_divisor;
-	if (!clk)
+	if (IS_ERR(clk))
 		return;
 
 	/* check to see if we need  to change clock source */
@@ -713,9 +712,9 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 	if (ourport->baudclk != clk) {
 		s3c24xx_serial_setsource(port, clk_sel);
 
-		if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) {
+		if (!IS_ERR(ourport->baudclk)) {
 			clk_disable(ourport->baudclk);
-			ourport->baudclk  = NULL;
+			ourport->baudclk = ERR_PTR(-EINVAL);
 		}
 
 		clk_enable(clk);
@@ -877,11 +876,24 @@ s3c24xx_serial_verify_port(struct uart_port *port, struct serial_struct *ser)
 
 static struct console s3c24xx_serial_console;
 
+static int __init s3c24xx_serial_console_init(void)
+{
+	register_console(&s3c24xx_serial_console);
+	return 0;
+}
+console_initcall(s3c24xx_serial_console_init);
+
 #define S3C24XX_SERIAL_CONSOLE &s3c24xx_serial_console
 #else
 #define S3C24XX_SERIAL_CONSOLE NULL
 #endif
 
+#ifdef CONFIG_CONSOLE_POLL
+static int s3c24xx_serial_get_poll_char(struct uart_port *port);
+static void s3c24xx_serial_put_poll_char(struct uart_port *port,
+			 unsigned char c);
+#endif
+
 static struct uart_ops s3c24xx_serial_ops = {
 	.pm		= s3c24xx_serial_pm,
 	.tx_empty	= s3c24xx_serial_tx_empty,
@@ -900,6 +912,10 @@ static struct uart_ops s3c24xx_serial_ops = {
 	.request_port	= s3c24xx_serial_request_port,
 	.config_port	= s3c24xx_serial_config_port,
 	.verify_port	= s3c24xx_serial_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+	.poll_get_char = s3c24xx_serial_get_poll_char,
+	.poll_put_char = s3c24xx_serial_put_poll_char,
+#endif
 };
 
 static struct uart_driver s3c24xx_uart_drv = {
@@ -1036,10 +1052,10 @@ static int s3c24xx_serial_cpufreq_transition(struct notifier_block *nb,
 		if (tty == NULL)
 			goto exit;
 
-		termios = tty->termios;
+		termios = &tty->termios;
 
 		if (termios == NULL) {
-			printk(KERN_WARNING "%s: no termios?\n", __func__);
+			dev_warn(uport->dev, "%s: no termios?\n", __func__);
 			goto exit;
 		}
 
@@ -1114,7 +1130,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 
 	res = platform_get_resource(platdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {
-		printk(KERN_ERR "failed to find memory resource for uart\n");
+		dev_err(port->dev, "failed to find memory resource for uart\n");
 		return -EINVAL;
 	}
 
@@ -1130,7 +1146,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 		ourport->rx_irq = ret;
 		ourport->tx_irq = ret + 1;
 	}
-	
+
 	ret = platform_get_irq(platdev, 1);
 	if (ret > 0)
 		ourport->tx_irq = ret;
@@ -1160,7 +1176,11 @@ static ssize_t s3c24xx_serial_show_clksrc(struct device *dev,
 	struct uart_port *port = s3c24xx_dev_to_port(dev);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
 
-	return snprintf(buf, PAGE_SIZE, "* %s\n", ourport->baudclk->name);
+	if (IS_ERR(ourport->baudclk))
+		return -EINVAL;
+
+	return snprintf(buf, PAGE_SIZE, "* %s\n",
+			ourport->baudclk->name ?: "(null)");
 }
 
 static DEVICE_ATTR(clock_source, S_IRUGO, s3c24xx_serial_show_clksrc, NULL);
@@ -1200,6 +1220,7 @@ static int s3c24xx_serial_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	ourport->baudclk = ERR_PTR(-EINVAL);
 	ourport->info = ourport->drv_data->info;
 	ourport->cfg = (pdev->dev.platform_data) ?
 			(struct s3c2410_uartcfg *)pdev->dev.platform_data :
@@ -1312,6 +1333,36 @@ s3c24xx_serial_console_txrdy(struct uart_port *port, unsigned int ufcon)
 	return (utrstat & S3C2410_UTRSTAT_TXE) ? 1 : 0;
 }
 
+#ifdef CONFIG_CONSOLE_POLL
+/*
+ * Console polling routines for writing and reading from the uart while
+ * in an interrupt or debug context.
+ */
+
+static int s3c24xx_serial_get_poll_char(struct uart_port *port)
+{
+	struct s3c24xx_uart_port *ourport = to_ourport(port);
+	unsigned int ufstat;
+
+	ufstat = rd_regl(port, S3C2410_UFSTAT);
+	if (s3c24xx_serial_rx_fifocnt(ourport, ufstat) == 0)
+		return NO_POLL_CHAR;
+
+	return rd_regb(port, S3C2410_URXH);
+}
+
+static void s3c24xx_serial_put_poll_char(struct uart_port *port,
+		unsigned char c)
+{
+	unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
+
+	while (!s3c24xx_serial_console_txrdy(port, ufcon))
+		cpu_relax();
+	wr_regb(cons_uart, S3C2410_UTXH, c);
+}
+
+#endif /* CONFIG_CONSOLE_POLL */
+
 static void
 s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
 {
@@ -1387,7 +1438,7 @@ s3c24xx_serial_get_options(struct uart_port *port, int *baud,
 		sprintf(clk_name, "clk_uart_baud%d", clk_sel);
 
 		clk = clk_get(port->dev, clk_name);
-		if (!IS_ERR(clk) && clk != NULL)
+		if (!IS_ERR(clk))
 			rate = clk_get_rate(clk);
 		else
 			rate = 1;
@@ -1679,8 +1730,8 @@ static int __init s3c24xx_serial_modinit(void)
 
 	ret = uart_register_driver(&s3c24xx_uart_drv);
 	if (ret < 0) {
-		printk(KERN_ERR "failed to register UART driver\n");
-		return -1;
+		pr_err("Failed to register Samsung UART driver\n");
+		return ret;
 	}
 
 	return platform_driver_register(&samsung_serial_driver);
diff --git a/drivers/tty/serial/sc26xx.c b/drivers/tty/serial/sc26xx.c
index e0b4b0a30a5..9d664242b31 100644
--- a/drivers/tty/serial/sc26xx.c
+++ b/drivers/tty/serial/sc26xx.c
@@ -20,6 +20,10 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
+#include <linux/io.h>
+
+#warning "Please try migrate to use new driver SCCNXP and report the status" \
+	 "in the linux-serial mailing list."
 
 #if defined(CONFIG_MAGIC_SYSRQ)
 #define SUPPORT_SYSRQ
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
new file mode 100644
index 00000000000..b7086d004f5
--- /dev/null
+++ b/drivers/tty/serial/sccnxp.c
@@ -0,0 +1,990 @@
+/*
+ *  NXP (Philips) SCC+++(SCN+++) serial driver
+ *
+ *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ *  Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#if defined(CONFIG_SERIAL_SCCNXP_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/console.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+#include <linux/io.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/sccnxp.h>
+
+#define SCCNXP_NAME			"uart-sccnxp"
+#define SCCNXP_MAJOR			204
+#define SCCNXP_MINOR			205
+
+#define SCCNXP_MR_REG			(0x00)
+#	define MR0_BAUD_NORMAL		(0 << 0)
+#	define MR0_BAUD_EXT1		(1 << 0)
+#	define MR0_BAUD_EXT2		(5 << 0)
+#	define MR0_FIFO			(1 << 3)
+#	define MR0_TXLVL		(1 << 4)
+#	define MR1_BITS_5		(0 << 0)
+#	define MR1_BITS_6		(1 << 0)
+#	define MR1_BITS_7		(2 << 0)
+#	define MR1_BITS_8		(3 << 0)
+#	define MR1_PAR_EVN		(0 << 2)
+#	define MR1_PAR_ODD		(1 << 2)
+#	define MR1_PAR_NO		(4 << 2)
+#	define MR2_STOP1		(7 << 0)
+#	define MR2_STOP2		(0xf << 0)
+#define SCCNXP_SR_REG			(0x01)
+#define SCCNXP_CSR_REG			SCCNXP_SR_REG
+#	define SR_RXRDY			(1 << 0)
+#	define SR_FULL			(1 << 1)
+#	define SR_TXRDY			(1 << 2)
+#	define SR_TXEMT			(1 << 3)
+#	define SR_OVR			(1 << 4)
+#	define SR_PE			(1 << 5)
+#	define SR_FE			(1 << 6)
+#	define SR_BRK			(1 << 7)
+#define SCCNXP_CR_REG			(0x02)
+#	define CR_RX_ENABLE		(1 << 0)
+#	define CR_RX_DISABLE		(1 << 1)
+#	define CR_TX_ENABLE		(1 << 2)
+#	define CR_TX_DISABLE		(1 << 3)
+#	define CR_CMD_MRPTR1		(0x01 << 4)
+#	define CR_CMD_RX_RESET		(0x02 << 4)
+#	define CR_CMD_TX_RESET		(0x03 << 4)
+#	define CR_CMD_STATUS_RESET	(0x04 << 4)
+#	define CR_CMD_BREAK_RESET	(0x05 << 4)
+#	define CR_CMD_START_BREAK	(0x06 << 4)
+#	define CR_CMD_STOP_BREAK	(0x07 << 4)
+#	define CR_CMD_MRPTR0		(0x0b << 4)
+#define SCCNXP_RHR_REG			(0x03)
+#define SCCNXP_THR_REG			SCCNXP_RHR_REG
+#define SCCNXP_IPCR_REG			(0x04)
+#define SCCNXP_ACR_REG			SCCNXP_IPCR_REG
+#	define ACR_BAUD0		(0 << 7)
+#	define ACR_BAUD1		(1 << 7)
+#	define ACR_TIMER_MODE		(6 << 4)
+#define SCCNXP_ISR_REG			(0x05)
+#define SCCNXP_IMR_REG			SCCNXP_ISR_REG
+#	define IMR_TXRDY		(1 << 0)
+#	define IMR_RXRDY		(1 << 1)
+#	define ISR_TXRDY(x)		(1 << ((x * 4) + 0))
+#	define ISR_RXRDY(x)		(1 << ((x * 4) + 1))
+#define SCCNXP_IPR_REG			(0x0d)
+#define SCCNXP_OPCR_REG			SCCNXP_IPR_REG
+#define SCCNXP_SOP_REG			(0x0e)
+#define SCCNXP_ROP_REG			(0x0f)
+
+/* Route helpers */
+#define MCTRL_MASK(sig)			(0xf << (sig))
+#define MCTRL_IBIT(cfg, sig)		((((cfg) >> (sig)) & 0xf) - LINE_IP0)
+#define MCTRL_OBIT(cfg, sig)		((((cfg) >> (sig)) & 0xf) - LINE_OP0)
+
+/* Supported chip types */
+enum {
+	SCCNXP_TYPE_SC2681	= 2681,
+	SCCNXP_TYPE_SC2691	= 2691,
+	SCCNXP_TYPE_SC2692	= 2692,
+	SCCNXP_TYPE_SC2891	= 2891,
+	SCCNXP_TYPE_SC2892	= 2892,
+	SCCNXP_TYPE_SC28202	= 28202,
+	SCCNXP_TYPE_SC68681	= 68681,
+	SCCNXP_TYPE_SC68692	= 68692,
+};
+
+struct sccnxp_port {
+	struct uart_driver	uart;
+	struct uart_port	port[SCCNXP_MAX_UARTS];
+
+	const char		*name;
+	int			irq;
+
+	u8			imr;
+	u8			addr_mask;
+	int			freq_std;
+
+	int			flags;
+#define SCCNXP_HAVE_IO		0x00000001
+#define SCCNXP_HAVE_MR0		0x00000002
+
+#ifdef CONFIG_SERIAL_SCCNXP_CONSOLE
+	struct console		console;
+#endif
+
+	struct mutex		sccnxp_mutex;
+
+	struct sccnxp_pdata	pdata;
+};
+
+static inline u8 sccnxp_raw_read(void __iomem *base, u8 reg, u8 shift)
+{
+	return readb(base + (reg << shift));
+}
+
+static inline void sccnxp_raw_write(void __iomem *base, u8 reg, u8 shift, u8 v)
+{
+	writeb(v, base + (reg << shift));
+}
+
+static inline u8 sccnxp_read(struct uart_port *port, u8 reg)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	return sccnxp_raw_read(port->membase, reg & s->addr_mask,
+			       port->regshift);
+}
+
+static inline void sccnxp_write(struct uart_port *port, u8 reg, u8 v)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	sccnxp_raw_write(port->membase, reg & s->addr_mask, port->regshift, v);
+}
+
+static inline u8 sccnxp_port_read(struct uart_port *port, u8 reg)
+{
+	return sccnxp_read(port, (port->line << 3) + reg);
+}
+
+static inline void sccnxp_port_write(struct uart_port *port, u8 reg, u8 v)
+{
+	sccnxp_write(port, (port->line << 3) + reg, v);
+}
+
+static int sccnxp_update_best_err(int a, int b, int *besterr)
+{
+	int err = abs(a - b);
+
+	if ((*besterr < 0) || (*besterr > err)) {
+		*besterr = err;
+		return 0;
+	}
+
+	return 1;
+}
+
+struct baud_table {
+	u8	csr;
+	u8	acr;
+	u8	mr0;
+	int	baud;
+};
+
+const struct baud_table baud_std[] = {
+	{ 0,	ACR_BAUD0,	MR0_BAUD_NORMAL,	50, },
+	{ 0,	ACR_BAUD1,	MR0_BAUD_NORMAL,	75, },
+	{ 1,	ACR_BAUD0,	MR0_BAUD_NORMAL,	110, },
+	{ 2,	ACR_BAUD0,	MR0_BAUD_NORMAL,	134, },
+	{ 3,	ACR_BAUD1,	MR0_BAUD_NORMAL,	150, },
+	{ 3,	ACR_BAUD0,	MR0_BAUD_NORMAL,	200, },
+	{ 4,	ACR_BAUD0,	MR0_BAUD_NORMAL,	300, },
+	{ 0,	ACR_BAUD1,	MR0_BAUD_EXT1,		450, },
+	{ 1,	ACR_BAUD0,	MR0_BAUD_EXT2,		880, },
+	{ 3,	ACR_BAUD1,	MR0_BAUD_EXT1,		900, },
+	{ 5,	ACR_BAUD0,	MR0_BAUD_NORMAL,	600, },
+	{ 7,	ACR_BAUD0,	MR0_BAUD_NORMAL,	1050, },
+	{ 2,	ACR_BAUD0,	MR0_BAUD_EXT2,		1076, },
+	{ 6,	ACR_BAUD0,	MR0_BAUD_NORMAL,	1200, },
+	{ 10,	ACR_BAUD1,	MR0_BAUD_NORMAL,	1800, },
+	{ 7,	ACR_BAUD1,	MR0_BAUD_NORMAL,	2000, },
+	{ 8,	ACR_BAUD0,	MR0_BAUD_NORMAL,	2400, },
+	{ 5,	ACR_BAUD1,	MR0_BAUD_EXT1,		3600, },
+	{ 9,	ACR_BAUD0,	MR0_BAUD_NORMAL,	4800, },
+	{ 10,	ACR_BAUD0,	MR0_BAUD_NORMAL,	7200, },
+	{ 11,	ACR_BAUD0,	MR0_BAUD_NORMAL,	9600, },
+	{ 8,	ACR_BAUD0,	MR0_BAUD_EXT1,		14400, },
+	{ 12,	ACR_BAUD1,	MR0_BAUD_NORMAL,	19200, },
+	{ 9,	ACR_BAUD0,	MR0_BAUD_EXT1,		28800, },
+	{ 12,	ACR_BAUD0,	MR0_BAUD_NORMAL,	38400, },
+	{ 11,	ACR_BAUD0,	MR0_BAUD_EXT1,		57600, },
+	{ 12,	ACR_BAUD1,	MR0_BAUD_EXT1,		115200, },
+	{ 12,	ACR_BAUD0,	MR0_BAUD_EXT1,		230400, },
+	{ 0, 0, 0, 0 }
+};
+
+static int sccnxp_set_baud(struct uart_port *port, int baud)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+	int div_std, tmp_baud, bestbaud = baud, besterr = -1;
+	u8 i, acr = 0, csr = 0, mr0 = 0;
+
+	/* Find best baud from table */
+	for (i = 0; baud_std[i].baud && besterr; i++) {
+		if (baud_std[i].mr0 && !(s->flags & SCCNXP_HAVE_MR0))
+			continue;
+		div_std = DIV_ROUND_CLOSEST(s->freq_std, baud_std[i].baud);
+		tmp_baud = DIV_ROUND_CLOSEST(port->uartclk, div_std);
+		if (!sccnxp_update_best_err(baud, tmp_baud, &besterr)) {
+			acr = baud_std[i].acr;
+			csr = baud_std[i].csr;
+			mr0 = baud_std[i].mr0;
+			bestbaud = tmp_baud;
+		}
+	}
+
+	if (s->flags & SCCNXP_HAVE_MR0) {
+		/* Enable FIFO, set half level for TX */
+		mr0 |= MR0_FIFO | MR0_TXLVL;
+		/* Update MR0 */
+		sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_MRPTR0);
+		sccnxp_port_write(port, SCCNXP_MR_REG, mr0);
+	}
+
+	sccnxp_port_write(port, SCCNXP_ACR_REG, acr | ACR_TIMER_MODE);
+	sccnxp_port_write(port, SCCNXP_CSR_REG, (csr << 4) | csr);
+
+	if (baud != bestbaud)
+		dev_dbg(port->dev, "Baudrate desired: %i, calculated: %i\n",
+			baud, bestbaud);
+
+	return bestbaud;
+}
+
+static void sccnxp_enable_irq(struct uart_port *port, int mask)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	s->imr |= mask << (port->line * 4);
+	sccnxp_write(port, SCCNXP_IMR_REG, s->imr);
+}
+
+static void sccnxp_disable_irq(struct uart_port *port, int mask)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	s->imr &= ~(mask << (port->line * 4));
+	sccnxp_write(port, SCCNXP_IMR_REG, s->imr);
+}
+
+static void sccnxp_set_bit(struct uart_port *port, int sig, int state)
+{
+	u8 bitmask;
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	if (s->pdata.mctrl_cfg[port->line] & MCTRL_MASK(sig)) {
+		bitmask = 1 << MCTRL_OBIT(s->pdata.mctrl_cfg[port->line], sig);
+		if (state)
+			sccnxp_write(port, SCCNXP_SOP_REG, bitmask);
+		else
+			sccnxp_write(port, SCCNXP_ROP_REG, bitmask);
+	}
+}
+
+static void sccnxp_handle_rx(struct uart_port *port)
+{
+	u8 sr;
+	unsigned int ch, flag;
+	struct tty_struct *tty = tty_port_tty_get(&port->state->port);
+
+	if (!tty)
+		return;
+
+	for (;;) {
+		sr = sccnxp_port_read(port, SCCNXP_SR_REG);
+		if (!(sr & SR_RXRDY))
+			break;
+		sr &= SR_PE | SR_FE | SR_OVR | SR_BRK;
+
+		ch = sccnxp_port_read(port, SCCNXP_RHR_REG);
+
+		port->icount.rx++;
+		flag = TTY_NORMAL;
+
+		if (unlikely(sr)) {
+			if (sr & SR_BRK) {
+				port->icount.brk++;
+				if (uart_handle_break(port))
+					continue;
+			} else if (sr & SR_PE)
+				port->icount.parity++;
+			else if (sr & SR_FE)
+				port->icount.frame++;
+			else if (sr & SR_OVR)
+				port->icount.overrun++;
+
+			sr &= port->read_status_mask;
+			if (sr & SR_BRK)
+				flag = TTY_BREAK;
+			else if (sr & SR_PE)
+				flag = TTY_PARITY;
+			else if (sr & SR_FE)
+				flag = TTY_FRAME;
+			else if (sr & SR_OVR)
+				flag = TTY_OVERRUN;
+		}
+
+		if (uart_handle_sysrq_char(port, ch))
+			continue;
+
+		if (sr & port->ignore_status_mask)
+			continue;
+
+		uart_insert_char(port, sr, SR_OVR, ch, flag);
+	}
+
+	tty_flip_buffer_push(tty);
+
+	tty_kref_put(tty);
+}
+
+static void sccnxp_handle_tx(struct uart_port *port)
+{
+	u8 sr;
+	struct circ_buf *xmit = &port->state->xmit;
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	if (unlikely(port->x_char)) {
+		sccnxp_port_write(port, SCCNXP_THR_REG, port->x_char);
+		port->icount.tx++;
+		port->x_char = 0;
+		return;
+	}
+
+	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+		/* Disable TX if FIFO is empty */
+		if (sccnxp_port_read(port, SCCNXP_SR_REG) & SR_TXEMT) {
+			sccnxp_disable_irq(port, IMR_TXRDY);
+
+			/* Set direction to input */
+			if (s->flags & SCCNXP_HAVE_IO)
+				sccnxp_set_bit(port, DIR_OP, 0);
+		}
+		return;
+	}
+
+	while (!uart_circ_empty(xmit)) {
+		sr = sccnxp_port_read(port, SCCNXP_SR_REG);
+		if (!(sr & SR_TXRDY))
+			break;
+
+		sccnxp_port_write(port, SCCNXP_THR_REG, xmit->buf[xmit->tail]);
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+	}
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(port);
+}
+
+static irqreturn_t sccnxp_ist(int irq, void *dev_id)
+{
+	int i;
+	u8 isr;
+	struct sccnxp_port *s = (struct sccnxp_port *)dev_id;
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	for (;;) {
+		isr = sccnxp_read(&s->port[0], SCCNXP_ISR_REG);
+		isr &= s->imr;
+		if (!isr)
+			break;
+
+		dev_dbg(s->port[0].dev, "IRQ status: 0x%02x\n", isr);
+
+		for (i = 0; i < s->uart.nr; i++) {
+			if (isr & ISR_RXRDY(i))
+				sccnxp_handle_rx(&s->port[i]);
+			if (isr & ISR_TXRDY(i))
+				sccnxp_handle_tx(&s->port[i]);
+		}
+	}
+
+	mutex_unlock(&s->sccnxp_mutex);
+
+	return IRQ_HANDLED;
+}
+
+static void sccnxp_start_tx(struct uart_port *port)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	/* Set direction to output */
+	if (s->flags & SCCNXP_HAVE_IO)
+		sccnxp_set_bit(port, DIR_OP, 1);
+
+	sccnxp_enable_irq(port, IMR_TXRDY);
+
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static void sccnxp_stop_tx(struct uart_port *port)
+{
+	/* Do nothing */
+}
+
+static void sccnxp_stop_rx(struct uart_port *port)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	mutex_lock(&s->sccnxp_mutex);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_RX_DISABLE);
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static unsigned int sccnxp_tx_empty(struct uart_port *port)
+{
+	u8 val;
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	mutex_lock(&s->sccnxp_mutex);
+	val = sccnxp_port_read(port, SCCNXP_SR_REG);
+	mutex_unlock(&s->sccnxp_mutex);
+
+	return (val & SR_TXEMT) ? TIOCSER_TEMT : 0;
+}
+
+static void sccnxp_enable_ms(struct uart_port *port)
+{
+	/* Do nothing */
+}
+
+static void sccnxp_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	if (!(s->flags & SCCNXP_HAVE_IO))
+		return;
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	sccnxp_set_bit(port, DTR_OP, mctrl & TIOCM_DTR);
+	sccnxp_set_bit(port, RTS_OP, mctrl & TIOCM_RTS);
+
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static unsigned int sccnxp_get_mctrl(struct uart_port *port)
+{
+	u8 bitmask, ipr;
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+	unsigned int mctrl = TIOCM_DSR | TIOCM_CTS | TIOCM_CAR;
+
+	if (!(s->flags & SCCNXP_HAVE_IO))
+		return mctrl;
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	ipr = ~sccnxp_read(port, SCCNXP_IPCR_REG);
+
+	if (s->pdata.mctrl_cfg[port->line] & MCTRL_MASK(DSR_IP)) {
+		bitmask = 1 << MCTRL_IBIT(s->pdata.mctrl_cfg[port->line],
+					  DSR_IP);
+		mctrl &= ~TIOCM_DSR;
+		mctrl |= (ipr & bitmask) ? TIOCM_DSR : 0;
+	}
+	if (s->pdata.mctrl_cfg[port->line] & MCTRL_MASK(CTS_IP)) {
+		bitmask = 1 << MCTRL_IBIT(s->pdata.mctrl_cfg[port->line],
+					  CTS_IP);
+		mctrl &= ~TIOCM_CTS;
+		mctrl |= (ipr & bitmask) ? TIOCM_CTS : 0;
+	}
+	if (s->pdata.mctrl_cfg[port->line] & MCTRL_MASK(DCD_IP)) {
+		bitmask = 1 << MCTRL_IBIT(s->pdata.mctrl_cfg[port->line],
+					  DCD_IP);
+		mctrl &= ~TIOCM_CAR;
+		mctrl |= (ipr & bitmask) ? TIOCM_CAR : 0;
+	}
+	if (s->pdata.mctrl_cfg[port->line] & MCTRL_MASK(RNG_IP)) {
+		bitmask = 1 << MCTRL_IBIT(s->pdata.mctrl_cfg[port->line],
+					  RNG_IP);
+		mctrl &= ~TIOCM_RNG;
+		mctrl |= (ipr & bitmask) ? TIOCM_RNG : 0;
+	}
+
+	mutex_unlock(&s->sccnxp_mutex);
+
+	return mctrl;
+}
+
+static void sccnxp_break_ctl(struct uart_port *port, int break_state)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	mutex_lock(&s->sccnxp_mutex);
+	sccnxp_port_write(port, SCCNXP_CR_REG, break_state ?
+			  CR_CMD_START_BREAK : CR_CMD_STOP_BREAK);
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static void sccnxp_set_termios(struct uart_port *port,
+			       struct ktermios *termios, struct ktermios *old)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+	u8 mr1, mr2;
+	int baud;
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	/* Mask termios capabilities we don't support */
+	termios->c_cflag &= ~CMSPAR;
+
+	/* Disable RX & TX, reset break condition, status and FIFOs */
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_RX_RESET |
+					       CR_RX_DISABLE | CR_TX_DISABLE);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_TX_RESET);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_STATUS_RESET);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_BREAK_RESET);
+
+	/* Word size */
+	switch (termios->c_cflag & CSIZE) {
+	case CS5:
+		mr1 = MR1_BITS_5;
+		break;
+	case CS6:
+		mr1 = MR1_BITS_6;
+		break;
+	case CS7:
+		mr1 = MR1_BITS_7;
+		break;
+	case CS8:
+	default:
+		mr1 = MR1_BITS_8;
+		break;
+	}
+
+	/* Parity */
+	if (termios->c_cflag & PARENB) {
+		if (termios->c_cflag & PARODD)
+			mr1 |= MR1_PAR_ODD;
+	} else
+		mr1 |= MR1_PAR_NO;
+
+	/* Stop bits */
+	mr2 = (termios->c_cflag & CSTOPB) ? MR2_STOP2 : MR2_STOP1;
+
+	/* Update desired format */
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_MRPTR1);
+	sccnxp_port_write(port, SCCNXP_MR_REG, mr1);
+	sccnxp_port_write(port, SCCNXP_MR_REG, mr2);
+
+	/* Set read status mask */
+	port->read_status_mask = SR_OVR;
+	if (termios->c_iflag & INPCK)
+		port->read_status_mask |= SR_PE | SR_FE;
+	if (termios->c_iflag & (BRKINT | PARMRK))
+		port->read_status_mask |= SR_BRK;
+
+	/* Set status ignore mask */
+	port->ignore_status_mask = 0;
+	if (termios->c_iflag & IGNBRK)
+		port->ignore_status_mask |= SR_BRK;
+	if (!(termios->c_cflag & CREAD))
+		port->ignore_status_mask |= SR_PE | SR_OVR | SR_FE | SR_BRK;
+
+	/* Setup baudrate */
+	baud = uart_get_baud_rate(port, termios, old, 50,
+				  (s->flags & SCCNXP_HAVE_MR0) ?
+				  230400 : 38400);
+	baud = sccnxp_set_baud(port, baud);
+
+	/* Update timeout according to new baud rate */
+	uart_update_timeout(port, termios->c_cflag, baud);
+
+	if (tty_termios_baud_rate(termios))
+		tty_termios_encode_baud_rate(termios, baud, baud);
+
+	/* Enable RX & TX */
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_RX_ENABLE | CR_TX_ENABLE);
+
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static int sccnxp_startup(struct uart_port *port)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	if (s->flags & SCCNXP_HAVE_IO) {
+		/* Outputs are controlled manually */
+		sccnxp_write(port, SCCNXP_OPCR_REG, 0);
+	}
+
+	/* Reset break condition, status and FIFOs */
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_RX_RESET);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_TX_RESET);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_STATUS_RESET);
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_CMD_BREAK_RESET);
+
+	/* Enable RX & TX */
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_RX_ENABLE | CR_TX_ENABLE);
+
+	/* Enable RX interrupt */
+	sccnxp_enable_irq(port, IMR_RXRDY);
+
+	mutex_unlock(&s->sccnxp_mutex);
+
+	return 0;
+}
+
+static void sccnxp_shutdown(struct uart_port *port)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	mutex_lock(&s->sccnxp_mutex);
+
+	/* Disable interrupts */
+	sccnxp_disable_irq(port, IMR_TXRDY | IMR_RXRDY);
+
+	/* Disable TX & RX */
+	sccnxp_port_write(port, SCCNXP_CR_REG, CR_RX_DISABLE | CR_TX_DISABLE);
+
+	/* Leave direction to input */
+	if (s->flags & SCCNXP_HAVE_IO)
+		sccnxp_set_bit(port, DIR_OP, 0);
+
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static const char *sccnxp_type(struct uart_port *port)
+{
+	struct sccnxp_port *s = dev_get_drvdata(port->dev);
+
+	return (port->type == PORT_SC26XX) ? s->name : NULL;
+}
+
+static void sccnxp_release_port(struct uart_port *port)
+{
+	/* Do nothing */
+}
+
+static int sccnxp_request_port(struct uart_port *port)
+{
+	/* Do nothing */
+	return 0;
+}
+
+static void sccnxp_config_port(struct uart_port *port, int flags)
+{
+	if (flags & UART_CONFIG_TYPE)
+		port->type = PORT_SC26XX;
+}
+
+static int sccnxp_verify_port(struct uart_port *port, struct serial_struct *s)
+{
+	if ((s->type == PORT_UNKNOWN) || (s->type == PORT_SC26XX))
+		return 0;
+	if (s->irq == port->irq)
+		return 0;
+
+	return -EINVAL;
+}
+
+static const struct uart_ops sccnxp_ops = {
+	.tx_empty	= sccnxp_tx_empty,
+	.set_mctrl	= sccnxp_set_mctrl,
+	.get_mctrl	= sccnxp_get_mctrl,
+	.stop_tx	= sccnxp_stop_tx,
+	.start_tx	= sccnxp_start_tx,
+	.stop_rx	= sccnxp_stop_rx,
+	.enable_ms	= sccnxp_enable_ms,
+	.break_ctl	= sccnxp_break_ctl,
+	.startup	= sccnxp_startup,
+	.shutdown	= sccnxp_shutdown,
+	.set_termios	= sccnxp_set_termios,
+	.type		= sccnxp_type,
+	.release_port	= sccnxp_release_port,
+	.request_port	= sccnxp_request_port,
+	.config_port	= sccnxp_config_port,
+	.verify_port	= sccnxp_verify_port,
+};
+
+#ifdef CONFIG_SERIAL_SCCNXP_CONSOLE
+static void sccnxp_console_putchar(struct uart_port *port, int c)
+{
+	int tryes = 100000;
+
+	while (tryes--) {
+		if (sccnxp_port_read(port, SCCNXP_SR_REG) & SR_TXRDY) {
+			sccnxp_port_write(port, SCCNXP_THR_REG, c);
+			break;
+		}
+		barrier();
+	}
+}
+
+static void sccnxp_console_write(struct console *co, const char *c, unsigned n)
+{
+	struct sccnxp_port *s = (struct sccnxp_port *)co->data;
+	struct uart_port *port = &s->port[co->index];
+
+	mutex_lock(&s->sccnxp_mutex);
+	uart_console_write(port, c, n, sccnxp_console_putchar);
+	mutex_unlock(&s->sccnxp_mutex);
+}
+
+static int sccnxp_console_setup(struct console *co, char *options)
+{
+	struct sccnxp_port *s = (struct sccnxp_port *)co->data;
+	struct uart_port *port = &s->port[(co->index > 0) ? co->index : 0];
+	int baud = 9600, bits = 8, parity = 'n', flow = 'n';
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+
+	return uart_set_options(port, co, baud, parity, bits, flow);
+}
+#endif
+
+static int __devinit sccnxp_probe(struct platform_device *pdev)
+{
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	int chiptype = pdev->id_entry->driver_data;
+	struct sccnxp_pdata *pdata = dev_get_platdata(&pdev->dev);
+	int i, ret, fifosize, freq_min, freq_max;
+	struct sccnxp_port *s;
+	void __iomem *membase;
+
+	if (!res) {
+		dev_err(&pdev->dev, "Missing memory resource data\n");
+		return -EADDRNOTAVAIL;
+	}
+
+	dev_set_name(&pdev->dev, SCCNXP_NAME);
+
+	s = devm_kzalloc(&pdev->dev, sizeof(struct sccnxp_port), GFP_KERNEL);
+	if (!s) {
+		dev_err(&pdev->dev, "Error allocating port structure\n");
+		return -ENOMEM;
+	}
+	platform_set_drvdata(pdev, s);
+
+	mutex_init(&s->sccnxp_mutex);
+
+	/* Individual chip settings */
+	switch (chiptype) {
+	case SCCNXP_TYPE_SC2681:
+		s->name		= "SC2681";
+		s->uart.nr	= 2;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x0f;
+		s->flags	= SCCNXP_HAVE_IO;
+		fifosize	= 3;
+		freq_min	= 1000000;
+		freq_max	= 4000000;
+		break;
+	case SCCNXP_TYPE_SC2691:
+		s->name		= "SC2691";
+		s->uart.nr	= 1;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x07;
+		s->flags	= 0;
+		fifosize	= 3;
+		freq_min	= 1000000;
+		freq_max	= 4000000;
+		break;
+	case SCCNXP_TYPE_SC2692:
+		s->name		= "SC2692";
+		s->uart.nr	= 2;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x0f;
+		s->flags	= SCCNXP_HAVE_IO;
+		fifosize	= 3;
+		freq_min	= 1000000;
+		freq_max	= 4000000;
+		break;
+	case SCCNXP_TYPE_SC2891:
+		s->name		= "SC2891";
+		s->uart.nr	= 1;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x0f;
+		s->flags	= SCCNXP_HAVE_IO | SCCNXP_HAVE_MR0;
+		fifosize	= 16;
+		freq_min	= 100000;
+		freq_max	= 8000000;
+		break;
+	case SCCNXP_TYPE_SC2892:
+		s->name		= "SC2892";
+		s->uart.nr	= 2;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x0f;
+		s->flags	= SCCNXP_HAVE_IO | SCCNXP_HAVE_MR0;
+		fifosize	= 16;
+		freq_min	= 100000;
+		freq_max	= 8000000;
+		break;
+	case SCCNXP_TYPE_SC28202:
+		s->name		= "SC28202";
+		s->uart.nr	= 2;
+		s->freq_std	= 14745600;
+		s->addr_mask	= 0x7f;
+		s->flags	= SCCNXP_HAVE_IO | SCCNXP_HAVE_MR0;
+		fifosize	= 256;
+		freq_min	= 1000000;
+		freq_max	= 50000000;
+		break;
+	case SCCNXP_TYPE_SC68681:
+		s->name		= "SC68681";
+		s->uart.nr	= 2;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x0f;
+		s->flags	= SCCNXP_HAVE_IO;
+		fifosize	= 3;
+		freq_min	= 1000000;
+		freq_max	= 4000000;
+		break;
+	case SCCNXP_TYPE_SC68692:
+		s->name		= "SC68692";
+		s->uart.nr	= 2;
+		s->freq_std	= 3686400;
+		s->addr_mask	= 0x0f;
+		s->flags	= SCCNXP_HAVE_IO;
+		fifosize	= 3;
+		freq_min	= 1000000;
+		freq_max	= 4000000;
+		break;
+	default:
+		dev_err(&pdev->dev, "Unsupported chip type %i\n", chiptype);
+		ret = -ENOTSUPP;
+		goto err_out;
+	}
+
+	if (!pdata) {
+		dev_warn(&pdev->dev,
+			 "No platform data supplied, using defaults\n");
+		s->pdata.frequency = s->freq_std;
+	} else
+		memcpy(&s->pdata, pdata, sizeof(struct sccnxp_pdata));
+
+	s->irq = platform_get_irq(pdev, 0);
+	if (s->irq <= 0) {
+		dev_err(&pdev->dev, "Missing irq resource data\n");
+		ret = -ENXIO;
+		goto err_out;
+	}
+
+	/* Check input frequency */
+	if ((s->pdata.frequency < freq_min) ||
+	    (s->pdata.frequency > freq_max)) {
+		dev_err(&pdev->dev, "Frequency out of bounds\n");
+		ret = -EINVAL;
+		goto err_out;
+	}
+
+	membase = devm_request_and_ioremap(&pdev->dev, res);
+	if (!membase) {
+		dev_err(&pdev->dev, "Failed to ioremap\n");
+		ret = -EIO;
+		goto err_out;
+	}
+
+	s->uart.owner		= THIS_MODULE;
+	s->uart.dev_name	= "ttySC";
+	s->uart.major		= SCCNXP_MAJOR;
+	s->uart.minor		= SCCNXP_MINOR;
+#ifdef CONFIG_SERIAL_SCCNXP_CONSOLE
+	s->uart.cons		= &s->console;
+	s->uart.cons->device	= uart_console_device;
+	s->uart.cons->write	= sccnxp_console_write;
+	s->uart.cons->setup	= sccnxp_console_setup;
+	s->uart.cons->flags	= CON_PRINTBUFFER;
+	s->uart.cons->index	= -1;
+	s->uart.cons->data	= s;
+	strcpy(s->uart.cons->name, "ttySC");
+#endif
+	ret = uart_register_driver(&s->uart);
+	if (ret) {
+		dev_err(&pdev->dev, "Registering UART driver failed\n");
+		goto err_out;
+	}
+
+	for (i = 0; i < s->uart.nr; i++) {
+		s->port[i].line		= i;
+		s->port[i].dev		= &pdev->dev;
+		s->port[i].irq		= s->irq;
+		s->port[i].type		= PORT_SC26XX;
+		s->port[i].fifosize	= fifosize;
+		s->port[i].flags	= UPF_SKIP_TEST | UPF_FIXED_TYPE;
+		s->port[i].iotype	= UPIO_MEM;
+		s->port[i].mapbase	= res->start;
+		s->port[i].membase	= membase;
+		s->port[i].regshift	= s->pdata.reg_shift;
+		s->port[i].uartclk	= s->pdata.frequency;
+		s->port[i].ops		= &sccnxp_ops;
+		uart_add_one_port(&s->uart, &s->port[i]);
+		/* Set direction to input */
+		if (s->flags & SCCNXP_HAVE_IO)
+			sccnxp_set_bit(&s->port[i], DIR_OP, 0);
+	}
+
+	/* Disable interrupts */
+	s->imr = 0;
+	sccnxp_write(&s->port[0], SCCNXP_IMR_REG, 0);
+
+	/* Board specific configure */
+	if (s->pdata.init)
+		s->pdata.init();
+
+	ret = devm_request_threaded_irq(&pdev->dev, s->irq, NULL, sccnxp_ist,
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+					dev_name(&pdev->dev), s);
+	if (!ret)
+		return 0;
+
+	dev_err(&pdev->dev, "Unable to reguest IRQ %i\n", s->irq);
+
+err_out:
+	platform_set_drvdata(pdev, NULL);
+
+	return ret;
+}
+
+static int __devexit sccnxp_remove(struct platform_device *pdev)
+{
+	int i;
+	struct sccnxp_port *s = platform_get_drvdata(pdev);
+
+	devm_free_irq(&pdev->dev, s->irq, s);
+
+	for (i = 0; i < s->uart.nr; i++)
+		uart_remove_one_port(&s->uart, &s->port[i]);
+
+	uart_unregister_driver(&s->uart);
+	platform_set_drvdata(pdev, NULL);
+
+	if (s->pdata.exit)
+		s->pdata.exit();
+
+	return 0;
+}
+
+static const struct platform_device_id sccnxp_id_table[] = {
+	{ "sc2681",	SCCNXP_TYPE_SC2681 },
+	{ "sc2691",	SCCNXP_TYPE_SC2691 },
+	{ "sc2692",	SCCNXP_TYPE_SC2692 },
+	{ "sc2891",	SCCNXP_TYPE_SC2891 },
+	{ "sc2892",	SCCNXP_TYPE_SC2892 },
+	{ "sc28202",	SCCNXP_TYPE_SC28202 },
+	{ "sc68681",	SCCNXP_TYPE_SC68681 },
+	{ "sc68692",	SCCNXP_TYPE_SC68692 },
+};
+MODULE_DEVICE_TABLE(platform, sccnxp_id_table);
+
+static struct platform_driver sccnxp_uart_driver = {
+	.driver = {
+		.name	= SCCNXP_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= sccnxp_probe,
+	.remove		= __devexit_p(sccnxp_remove),
+	.id_table	= sccnxp_id_table,
+};
+module_platform_driver(sccnxp_uart_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
+MODULE_DESCRIPTION("SCCNXP serial driver");
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index a21dc8e3b7c..0fcfd98a956 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -159,7 +159,7 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state,
 	retval = uport->ops->startup(uport);
 	if (retval == 0) {
 		if (uart_console(uport) && uport->cons->cflag) {
-			tty->termios->c_cflag = uport->cons->cflag;
+			tty->termios.c_cflag = uport->cons->cflag;
 			uport->cons->cflag = 0;
 		}
 		/*
@@ -172,11 +172,11 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state,
 			 * Setup the RTS and DTR signals once the
 			 * port is open and ready to respond.
 			 */
-			if (tty->termios->c_cflag & CBAUD)
+			if (tty->termios.c_cflag & CBAUD)
 				uart_set_mctrl(uport, TIOCM_RTS | TIOCM_DTR);
 		}
 
-		if (port->flags & ASYNC_CTS_FLOW) {
+		if (tty_port_cts_enabled(port)) {
 			spin_lock_irq(&uport->lock);
 			if (!(uport->ops->get_mctrl(uport) & TIOCM_CTS))
 				tty->hw_stopped = 1;
@@ -240,7 +240,7 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state)
 		/*
 		 * Turn off DTR and RTS early.
 		 */
-		if (!tty || (tty->termios->c_cflag & HUPCL))
+		if (!tty || (tty->termios.c_cflag & HUPCL))
 			uart_clear_mctrl(uport, TIOCM_DTR | TIOCM_RTS);
 
 		uart_port_shutdown(port);
@@ -440,10 +440,10 @@ static void uart_change_speed(struct tty_struct *tty, struct uart_state *state,
 	 * If we have no tty, termios, or the port does not exist,
 	 * then we can't set the parameters for this port.
 	 */
-	if (!tty || !tty->termios || uport->type == PORT_UNKNOWN)
+	if (!tty || uport->type == PORT_UNKNOWN)
 		return;
 
-	termios = tty->termios;
+	termios = &tty->termios;
 
 	/*
 	 * Set flags based on termios cflag
@@ -614,7 +614,7 @@ static void uart_throttle(struct tty_struct *tty)
 	if (I_IXOFF(tty))
 		uart_send_xchar(tty, STOP_CHAR(tty));
 
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		uart_clear_mctrl(state->uart_port, TIOCM_RTS);
 }
 
@@ -630,42 +630,48 @@ static void uart_unthrottle(struct tty_struct *tty)
 			uart_send_xchar(tty, START_CHAR(tty));
 	}
 
-	if (tty->termios->c_cflag & CRTSCTS)
+	if (tty->termios.c_cflag & CRTSCTS)
 		uart_set_mctrl(port, TIOCM_RTS);
 }
 
-static int uart_get_info(struct uart_state *state,
-			 struct serial_struct __user *retinfo)
+static void uart_get_info(struct tty_port *port,
+                        struct uart_state *state,
+			struct serial_struct *retinfo)
 {
 	struct uart_port *uport = state->uart_port;
-	struct tty_port *port = &state->port;
-	struct serial_struct tmp;
 
-	memset(&tmp, 0, sizeof(tmp));
+	memset(retinfo, 0, sizeof(*retinfo));
 
-	/* Ensure the state we copy is consistent and no hardware changes
-	   occur as we go */
-	mutex_lock(&port->mutex);
-
-	tmp.type	    = uport->type;
-	tmp.line	    = uport->line;
-	tmp.port	    = uport->iobase;
+	retinfo->type	    = uport->type;
+	retinfo->line	    = uport->line;
+	retinfo->port	    = uport->iobase;
 	if (HIGH_BITS_OFFSET)
-		tmp.port_high = (long) uport->iobase >> HIGH_BITS_OFFSET;
-	tmp.irq		    = uport->irq;
-	tmp.flags	    = uport->flags;
-	tmp.xmit_fifo_size  = uport->fifosize;
-	tmp.baud_base	    = uport->uartclk / 16;
-	tmp.close_delay	    = jiffies_to_msecs(port->close_delay) / 10;
-	tmp.closing_wait    = port->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+		retinfo->port_high = (long) uport->iobase >> HIGH_BITS_OFFSET;
+	retinfo->irq		    = uport->irq;
+	retinfo->flags	    = uport->flags;
+	retinfo->xmit_fifo_size  = uport->fifosize;
+	retinfo->baud_base	    = uport->uartclk / 16;
+	retinfo->close_delay	    = jiffies_to_msecs(port->close_delay) / 10;
+	retinfo->closing_wait    = port->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
 				ASYNC_CLOSING_WAIT_NONE :
 				jiffies_to_msecs(port->closing_wait) / 10;
-	tmp.custom_divisor  = uport->custom_divisor;
-	tmp.hub6	    = uport->hub6;
-	tmp.io_type         = uport->iotype;
-	tmp.iomem_reg_shift = uport->regshift;
-	tmp.iomem_base      = (void *)(unsigned long)uport->mapbase;
+	retinfo->custom_divisor  = uport->custom_divisor;
+	retinfo->hub6	    = uport->hub6;
+	retinfo->io_type         = uport->iotype;
+	retinfo->iomem_reg_shift = uport->regshift;
+	retinfo->iomem_base      = (void *)(unsigned long)uport->mapbase;
+}
+
+static int uart_get_info_user(struct uart_state *state,
+			 struct serial_struct __user *retinfo)
+{
+	struct tty_port *port = &state->port;
+	struct serial_struct tmp;
 
+	/* Ensure the state we copy is consistent and no hardware changes
+	   occur as we go */
+	mutex_lock(&port->mutex);
+	uart_get_info(port, state, &tmp);
 	mutex_unlock(&port->mutex);
 
 	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
@@ -673,42 +679,30 @@ static int uart_get_info(struct uart_state *state,
 	return 0;
 }
 
-static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
-			 struct serial_struct __user *newinfo)
+static int uart_set_info(struct tty_struct *tty, struct tty_port *port,
+			 struct uart_state *state,
+			 struct serial_struct *new_info)
 {
-	struct serial_struct new_serial;
 	struct uart_port *uport = state->uart_port;
-	struct tty_port *port = &state->port;
 	unsigned long new_port;
 	unsigned int change_irq, change_port, closing_wait;
 	unsigned int old_custom_divisor, close_delay;
 	upf_t old_flags, new_flags;
 	int retval = 0;
 
-	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
-		return -EFAULT;
-
-	new_port = new_serial.port;
+	new_port = new_info->port;
 	if (HIGH_BITS_OFFSET)
-		new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET;
+		new_port += (unsigned long) new_info->port_high << HIGH_BITS_OFFSET;
 
-	new_serial.irq = irq_canonicalize(new_serial.irq);
-	close_delay = msecs_to_jiffies(new_serial.close_delay * 10);
-	closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+	new_info->irq = irq_canonicalize(new_info->irq);
+	close_delay = msecs_to_jiffies(new_info->close_delay * 10);
+	closing_wait = new_info->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
 			ASYNC_CLOSING_WAIT_NONE :
-			msecs_to_jiffies(new_serial.closing_wait * 10);
+			msecs_to_jiffies(new_info->closing_wait * 10);
 
-	/*
-	 * This semaphore protects port->count.  It is also
-	 * very useful to prevent opens.  Also, take the
-	 * port configuration semaphore to make sure that a
-	 * module insertion/removal doesn't change anything
-	 * under us.
-	 */
-	mutex_lock(&port->mutex);
 
 	change_irq  = !(uport->flags & UPF_FIXED_PORT)
-		&& new_serial.irq != uport->irq;
+		&& new_info->irq != uport->irq;
 
 	/*
 	 * Since changing the 'type' of the port changes its resource
@@ -717,29 +711,29 @@ static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
 	 */
 	change_port = !(uport->flags & UPF_FIXED_PORT)
 		&& (new_port != uport->iobase ||
-		    (unsigned long)new_serial.iomem_base != uport->mapbase ||
-		    new_serial.hub6 != uport->hub6 ||
-		    new_serial.io_type != uport->iotype ||
-		    new_serial.iomem_reg_shift != uport->regshift ||
-		    new_serial.type != uport->type);
+		    (unsigned long)new_info->iomem_base != uport->mapbase ||
+		    new_info->hub6 != uport->hub6 ||
+		    new_info->io_type != uport->iotype ||
+		    new_info->iomem_reg_shift != uport->regshift ||
+		    new_info->type != uport->type);
 
 	old_flags = uport->flags;
-	new_flags = new_serial.flags;
+	new_flags = new_info->flags;
 	old_custom_divisor = uport->custom_divisor;
 
 	if (!capable(CAP_SYS_ADMIN)) {
 		retval = -EPERM;
 		if (change_irq || change_port ||
-		    (new_serial.baud_base != uport->uartclk / 16) ||
+		    (new_info->baud_base != uport->uartclk / 16) ||
 		    (close_delay != port->close_delay) ||
 		    (closing_wait != port->closing_wait) ||
-		    (new_serial.xmit_fifo_size &&
-		     new_serial.xmit_fifo_size != uport->fifosize) ||
+		    (new_info->xmit_fifo_size &&
+		     new_info->xmit_fifo_size != uport->fifosize) ||
 		    (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0))
 			goto exit;
 		uport->flags = ((uport->flags & ~UPF_USR_MASK) |
 			       (new_flags & UPF_USR_MASK));
-		uport->custom_divisor = new_serial.custom_divisor;
+		uport->custom_divisor = new_info->custom_divisor;
 		goto check_and_exit;
 	}
 
@@ -747,10 +741,10 @@ static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
 	 * Ask the low level driver to verify the settings.
 	 */
 	if (uport->ops->verify_port)
-		retval = uport->ops->verify_port(uport, &new_serial);
+		retval = uport->ops->verify_port(uport, new_info);
 
-	if ((new_serial.irq >= nr_irqs) || (new_serial.irq < 0) ||
-	    (new_serial.baud_base < 9600))
+	if ((new_info->irq >= nr_irqs) || (new_info->irq < 0) ||
+	    (new_info->baud_base < 9600))
 		retval = -EINVAL;
 
 	if (retval)
@@ -790,11 +784,11 @@ static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
 			uport->ops->release_port(uport);
 
 		uport->iobase = new_port;
-		uport->type = new_serial.type;
-		uport->hub6 = new_serial.hub6;
-		uport->iotype = new_serial.io_type;
-		uport->regshift = new_serial.iomem_reg_shift;
-		uport->mapbase = (unsigned long)new_serial.iomem_base;
+		uport->type = new_info->type;
+		uport->hub6 = new_info->hub6;
+		uport->iotype = new_info->io_type;
+		uport->regshift = new_info->iomem_reg_shift;
+		uport->mapbase = (unsigned long)new_info->iomem_base;
 
 		/*
 		 * Claim and map the new regions
@@ -835,16 +829,16 @@ static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
 	}
 
 	if (change_irq)
-		uport->irq      = new_serial.irq;
+		uport->irq      = new_info->irq;
 	if (!(uport->flags & UPF_FIXED_PORT))
-		uport->uartclk  = new_serial.baud_base * 16;
+		uport->uartclk  = new_info->baud_base * 16;
 	uport->flags            = (uport->flags & ~UPF_CHANGE_MASK) |
 				 (new_flags & UPF_CHANGE_MASK);
-	uport->custom_divisor   = new_serial.custom_divisor;
+	uport->custom_divisor   = new_info->custom_divisor;
 	port->close_delay     = close_delay;
 	port->closing_wait    = closing_wait;
-	if (new_serial.xmit_fifo_size)
-		uport->fifosize = new_serial.xmit_fifo_size;
+	if (new_info->xmit_fifo_size)
+		uport->fifosize = new_info->xmit_fifo_size;
 	if (port->tty)
 		port->tty->low_latency =
 			(uport->flags & UPF_LOW_LATENCY) ? 1 : 0;
@@ -873,6 +867,28 @@ static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
 	} else
 		retval = uart_startup(tty, state, 1);
  exit:
+	return retval;
+}
+
+static int uart_set_info_user(struct tty_struct *tty, struct uart_state *state,
+			 struct serial_struct __user *newinfo)
+{
+	struct serial_struct new_serial;
+	struct tty_port *port = &state->port;
+	int retval;
+
+	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
+		return -EFAULT;
+
+	/*
+	 * This semaphore protects port->count.  It is also
+	 * very useful to prevent opens.  Also, take the
+	 * port configuration semaphore to make sure that a
+	 * module insertion/removal doesn't change anything
+	 * under us.
+	 */
+	mutex_lock(&port->mutex);
+	retval = uart_set_info(tty, port, state, &new_serial);
 	mutex_unlock(&port->mutex);
 	return retval;
 }
@@ -1115,11 +1131,11 @@ uart_ioctl(struct tty_struct *tty, unsigned int cmd,
 	 */
 	switch (cmd) {
 	case TIOCGSERIAL:
-		ret = uart_get_info(state, uarg);
+		ret = uart_get_info_user(state, uarg);
 		break;
 
 	case TIOCSSERIAL:
-		ret = uart_set_info(tty, state, uarg);
+		ret = uart_set_info_user(tty, state, uarg);
 		break;
 
 	case TIOCSERCONFIG:
@@ -1187,7 +1203,7 @@ static void uart_set_ldisc(struct tty_struct *tty)
 	struct uart_port *uport = state->uart_port;
 
 	if (uport->ops->set_ldisc)
-		uport->ops->set_ldisc(uport, tty->termios->c_line);
+		uport->ops->set_ldisc(uport, tty->termios.c_line);
 }
 
 static void uart_set_termios(struct tty_struct *tty,
@@ -1195,7 +1211,7 @@ static void uart_set_termios(struct tty_struct *tty,
 {
 	struct uart_state *state = tty->driver_data;
 	unsigned long flags;
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 
 
 	/*
@@ -1206,9 +1222,9 @@ static void uart_set_termios(struct tty_struct *tty,
 	 */
 #define RELEVANT_IFLAG(iflag)	((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
 	if ((cflag ^ old_termios->c_cflag) == 0 &&
-	    tty->termios->c_ospeed == old_termios->c_ospeed &&
-	    tty->termios->c_ispeed == old_termios->c_ispeed &&
-	    RELEVANT_IFLAG(tty->termios->c_iflag ^ old_termios->c_iflag) == 0) {
+	    tty->termios.c_ospeed == old_termios->c_ospeed &&
+	    tty->termios.c_ispeed == old_termios->c_ispeed &&
+	    RELEVANT_IFLAG(tty->termios.c_iflag ^ old_termios->c_iflag) == 0) {
 		return;
 	}
 
@@ -1960,8 +1976,8 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
 		/*
 		 * If that's unset, use the tty termios setting.
 		 */
-		if (port->tty && port->tty->termios && termios.c_cflag == 0)
-			termios = *(port->tty->termios);
+		if (port->tty && termios.c_cflag == 0)
+			termios = port->tty->termios;
 
 		if (console_suspend_enabled)
 			uart_change_pm(state, 0);
@@ -2113,6 +2129,7 @@ static int uart_poll_init(struct tty_driver *driver, int line, char *options)
 	int bits = 8;
 	int parity = 'n';
 	int flow = 'n';
+	int ret;
 
 	if (!state || !state->uart_port)
 		return -1;
@@ -2121,6 +2138,22 @@ static int uart_poll_init(struct tty_driver *driver, int line, char *options)
 	if (!(port->ops->poll_get_char && port->ops->poll_put_char))
 		return -1;
 
+	if (port->ops->poll_init) {
+		struct tty_port *tport = &state->port;
+
+		ret = 0;
+		mutex_lock(&tport->mutex);
+		/*
+		 * We don't set ASYNCB_INITIALIZED as we only initialized the
+		 * hw, e.g. state->xmit is still uninitialized.
+		 */
+		if (!test_bit(ASYNCB_INITIALIZED, &tport->flags))
+			ret = port->ops->poll_init(port);
+		mutex_unlock(&tport->mutex);
+		if (ret)
+			return ret;
+	}
+
 	if (options) {
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
 		return uart_set_options(port, NULL, baud, parity, bits, flow);
@@ -2293,6 +2326,36 @@ struct tty_driver *uart_console_device(struct console *co, int *index)
 	return p->tty_driver;
 }
 
+static ssize_t uart_get_attr_uartclk(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	int ret;
+	struct tty_port *port = dev_get_drvdata(dev);
+	struct uart_state *state = container_of(port, struct uart_state, port);
+
+	mutex_lock(&state->port.mutex);
+	ret = snprintf(buf, PAGE_SIZE, "%d\n", state->uart_port->uartclk);
+	mutex_unlock(&state->port.mutex);
+
+	return ret;
+}
+
+static DEVICE_ATTR(uartclk, S_IRUSR | S_IRGRP, uart_get_attr_uartclk, NULL);
+
+static struct attribute *tty_dev_attrs[] = {
+	&dev_attr_uartclk.attr,
+	NULL,
+	};
+
+static const struct attribute_group tty_dev_attr_group = {
+	.attrs = tty_dev_attrs,
+	};
+
+static const struct attribute_group *tty_dev_attr_groups[] = {
+	&tty_dev_attr_group,
+	NULL
+	};
+
 /**
  *	uart_add_one_port - attach a driver-defined port structure
  *	@drv: pointer to the uart low level driver structure for this port
@@ -2346,7 +2409,8 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport)
 	 * Register the port whether it's detected or not.  This allows
 	 * setserial to be used to alter this ports parameters.
 	 */
-	tty_dev = tty_register_device(drv->tty_driver, uport->line, uport->dev);
+	tty_dev = tty_port_register_device_attr(port, drv->tty_driver,
+			uport->line, uport->dev, port, tty_dev_attr_groups);
 	if (likely(!IS_ERR(tty_dev))) {
 		device_set_wakeup_capable(tty_dev, 1);
 	} else {
@@ -2454,9 +2518,12 @@ void uart_handle_dcd_change(struct uart_port *uport, unsigned int status)
 {
 	struct uart_state *state = uport->state;
 	struct tty_port *port = &state->port;
-	struct tty_ldisc *ld = tty_ldisc_ref(port->tty);
+	struct tty_ldisc *ld = NULL;
 	struct pps_event_time ts;
+	struct tty_struct *tty = port->tty;
 
+	if (tty)
+	        ld = tty_ldisc_ref(tty);
 	if (ld && ld->ops->dcd_change)
 		pps_get_ts(&ts);
 
@@ -2469,12 +2536,12 @@ void uart_handle_dcd_change(struct uart_port *uport, unsigned int status)
 	if (port->flags & ASYNC_CHECK_CD) {
 		if (status)
 			wake_up_interruptible(&port->open_wait);
-		else if (port->tty)
-			tty_hangup(port->tty);
+		else if (tty)
+			tty_hangup(tty);
 	}
 
 	if (ld && ld->ops->dcd_change)
-		ld->ops->dcd_change(port->tty, status, &ts);
+		ld->ops->dcd_change(tty, status, &ts);
 	if (ld)
 		tty_ldisc_deref(ld);
 }
@@ -2492,7 +2559,7 @@ void uart_handle_cts_change(struct uart_port *uport, unsigned int status)
 
 	uport->icount.cts++;
 
-	if (port->flags & ASYNC_CTS_FLOW) {
+	if (tty_port_cts_enabled(port)) {
 		if (tty->hw_stopped) {
 			if (status) {
 				tty->hw_stopped = 0;
diff --git a/drivers/tty/serial/serial_ks8695.c b/drivers/tty/serial/serial_ks8695.c
index 7c13639c597..9bd004f9da8 100644
--- a/drivers/tty/serial/serial_ks8695.c
+++ b/drivers/tty/serial/serial_ks8695.c
@@ -548,8 +548,8 @@ static struct uart_ops ks8695uart_pops = {
 
 static struct uart_port ks8695uart_ports[SERIAL_KS8695_NR] = {
 	{
-		.membase	= (void *) KS8695_UART_VA,
-		.mapbase	= KS8695_UART_VA,
+		.membase	= KS8695_UART_VA,
+		.mapbase	= KS8695_UART_PA,
 		.iotype		= SERIAL_IO_MEM,
 		.irq		= KS8695_IRQ_UART_TX,
 		.uartclk	= KS8695_CLOCK_RATE * 16,
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 5b3eda2024f..a9e2bd1ab53 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -668,7 +668,7 @@ int sirfsoc_uart_probe(struct platform_device *pdev)
 	if (res == NULL) {
 		dev_err(&pdev->dev, "Insufficient resources.\n");
 		ret = -EFAULT;
-		goto irq_err;
+		goto err;
 	}
 	port->irq = res->start;
 
@@ -676,7 +676,7 @@ int sirfsoc_uart_probe(struct platform_device *pdev)
 		sirfport->p = pinctrl_get_select_default(&pdev->dev);
 		ret = IS_ERR(sirfport->p);
 		if (ret)
-			goto pin_err;
+			goto err;
 	}
 
 	port->ops = &sirfsoc_uart_ops;
@@ -695,9 +695,6 @@ port_err:
 	platform_set_drvdata(pdev, NULL);
 	if (sirfport->hw_flow_ctrl)
 		pinctrl_put(sirfport->p);
-pin_err:
-irq_err:
-	devm_iounmap(&pdev->dev, port->membase);
 err:
 	return ret;
 }
@@ -709,7 +706,6 @@ static int sirfsoc_uart_remove(struct platform_device *pdev)
 	platform_set_drvdata(pdev, NULL);
 	if (sirfport->hw_flow_ctrl)
 		pinctrl_put(sirfport->p);
-	devm_iounmap(&pdev->dev, port->membase);
 	uart_remove_one_port(&sirfsoc_uart_drv, port);
 	return 0;
 }
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 675303b8ed8..b97913dcdbf 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -58,10 +58,16 @@
 enum su_type { SU_PORT_NONE, SU_PORT_MS, SU_PORT_KBD, SU_PORT_PORT };
 static char *su_typev[] = { "su(???)", "su(mouse)", "su(kbd)", "su(serial)" };
 
+struct serial_uart_config {
+	char	*name;
+	int	dfl_xmit_fifo_size;
+	int	flags;
+};
+
 /*
  * Here we define the default xmit fifo size used for each type of UART.
  */
-static const struct serial_uart_config uart_config[PORT_MAX_8250+1] = {
+static const struct serial_uart_config uart_config[] = {
 	{ "unknown",	1,	0 },
 	{ "8250",	1,	0 },
 	{ "16450",	1,	0 },
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 2be006fb3da..205d4cf4a06 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -34,6 +34,7 @@
 #include <linux/slab.h>
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 /*
  * UART Register offsets
@@ -76,6 +77,8 @@
 #define RX_FIFO_INTS	(RXFAF | RXFF | RXOVER | PER | FER | RXTOUT)
 #define TX_FIFO_INTS	(TXFAE | TXFE | TXUDR)
 
+#define VT8500_MAX_PORTS	6
+
 struct vt8500_port {
 	struct uart_port	uart;
 	char			name[16];
@@ -83,6 +86,13 @@ struct vt8500_port {
 	unsigned int		ier;
 };
 
+/*
+ * we use this variable to keep track of which ports
+ * have been allocated as we can't use pdev->id in
+ * devicetree
+ */
+static unsigned long vt8500_ports_in_use;
+
 static inline void vt8500_write(struct uart_port *port, unsigned int val,
 			     unsigned int off)
 {
@@ -431,7 +441,7 @@ static int vt8500_verify_port(struct uart_port *port,
 	return 0;
 }
 
-static struct vt8500_port *vt8500_uart_ports[4];
+static struct vt8500_port *vt8500_uart_ports[VT8500_MAX_PORTS];
 static struct uart_driver vt8500_uart_driver;
 
 #ifdef CONFIG_SERIAL_VT8500_CONSOLE
@@ -548,7 +558,9 @@ static int __devinit vt8500_serial_probe(struct platform_device *pdev)
 {
 	struct vt8500_port *vt8500_port;
 	struct resource *mmres, *irqres;
+	struct device_node *np = pdev->dev.of_node;
 	int ret;
+	int port;
 
 	mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irqres = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -559,16 +571,46 @@ static int __devinit vt8500_serial_probe(struct platform_device *pdev)
 	if (!vt8500_port)
 		return -ENOMEM;
 
+	if (np)
+		port = of_alias_get_id(np, "serial");
+		if (port > VT8500_MAX_PORTS)
+			port = -1;
+	else
+		port = -1;
+
+	if (port < 0) {
+		/* calculate the port id */
+		port = find_first_zero_bit(&vt8500_ports_in_use,
+					sizeof(vt8500_ports_in_use));
+	}
+
+	if (port > VT8500_MAX_PORTS)
+		return -ENODEV;
+
+	/* reserve the port id */
+	if (test_and_set_bit(port, &vt8500_ports_in_use)) {
+		/* port already in use - shouldn't really happen */
+		return -EBUSY;
+	}
+
 	vt8500_port->uart.type = PORT_VT8500;
 	vt8500_port->uart.iotype = UPIO_MEM;
 	vt8500_port->uart.mapbase = mmres->start;
 	vt8500_port->uart.irq = irqres->start;
 	vt8500_port->uart.fifosize = 16;
 	vt8500_port->uart.ops = &vt8500_uart_pops;
-	vt8500_port->uart.line = pdev->id;
+	vt8500_port->uart.line = port;
 	vt8500_port->uart.dev = &pdev->dev;
 	vt8500_port->uart.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
-	vt8500_port->uart.uartclk = 24000000;
+
+	vt8500_port->clk = of_clk_get(pdev->dev.of_node, 0);
+	if (vt8500_port->clk) {
+		vt8500_port->uart.uartclk = clk_get_rate(vt8500_port->clk);
+	} else {
+		/* use the default of 24Mhz if not specified and warn */
+		pr_warn("%s: serial clock source not specified\n", __func__);
+		vt8500_port->uart.uartclk = 24000000;
+	}
 
 	snprintf(vt8500_port->name, sizeof(vt8500_port->name),
 		 "VT8500 UART%d", pdev->id);
@@ -579,7 +621,7 @@ static int __devinit vt8500_serial_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	vt8500_uart_ports[pdev->id] = vt8500_port;
+	vt8500_uart_ports[port] = vt8500_port;
 
 	uart_add_one_port(&vt8500_uart_driver, &vt8500_port->uart);
 
@@ -603,12 +645,18 @@ static int __devexit vt8500_serial_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id wmt_dt_ids[] = {
+	{ .compatible = "via,vt8500-uart", },
+	{}
+};
+
 static struct platform_driver vt8500_platform_driver = {
 	.probe  = vt8500_serial_probe,
 	.remove = __devexit_p(vt8500_serial_remove),
 	.driver = {
 		.name = "vt8500_serial",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(wmt_dt_ids),
 	},
 };
 
@@ -642,4 +690,4 @@ module_exit(vt8500_serial_exit);
 
 MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>");
 MODULE_DESCRIPTION("Driver for vt8500 serial device");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 593d40ad0a6..70e3a525bc8 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -1359,7 +1359,7 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
 			}
 		}
 	
-		if ( (info->port.flags & ASYNC_CTS_FLOW) && 
+		if (tty_port_cts_enabled(&info->port) &&
 		     (status & MISCSTATUS_CTS_LATCHED) ) {
 			if (info->port.tty->hw_stopped) {
 				if (status & MISCSTATUS_CTS) {
@@ -1840,22 +1840,22 @@ static void shutdown(struct mgsl_struct * info)
 	usc_DisableInterrupts(info,RECEIVE_DATA + RECEIVE_STATUS +
 		TRANSMIT_DATA + TRANSMIT_STATUS + IO_PIN + MISC );
 	usc_DisableDmaInterrupts(info,DICR_MASTER + DICR_TRANSMIT + DICR_RECEIVE);
-	
+
 	/* Disable DMAEN (Port 7, Bit 14) */
 	/* This disconnects the DMA request signal from the ISA bus */
 	/* on the ISA adapter. This has no effect for the PCI adapter */
 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) | BIT14));
-	
+
 	/* Disable INTEN (Port 6, Bit12) */
 	/* This disconnects the IRQ request signal to the ISA bus */
 	/* on the ISA adapter. This has no effect for the PCI adapter */
 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));
-	
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
+
+	if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		usc_set_serial_signals(info);
 	}
-	
+
 	spin_unlock_irqrestore(&info->irq_spinlock,flags);
 
 	mgsl_release_resources(info);	
@@ -1895,7 +1895,7 @@ static void mgsl_program_hw(struct mgsl_struct *info)
 	usc_EnableInterrupts(info, IO_PIN);
 	usc_get_serial_signals(info);
 		
-	if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
+	if (info->netcount || info->port.tty->termios.c_cflag & CREAD)
 		usc_start_receiver(info);
 		
 	spin_unlock_irqrestore(&info->irq_spinlock,flags);
@@ -1908,14 +1908,14 @@ static void mgsl_change_params(struct mgsl_struct *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->port.tty || !info->port.tty->termios)
+	if (!info->port.tty)
 		return;
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_change_params(%s)\n",
 			 __FILE__,__LINE__, info->device_name );
 			 
-	cflag = info->port.tty->termios->c_cflag;
+	cflag = info->port.tty->termios.c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -2367,8 +2367,8 @@ static void mgsl_throttle(struct tty_struct * tty)
 	
 	if (I_IXOFF(tty))
 		mgsl_send_xchar(tty, STOP_CHAR(tty));
- 
- 	if (tty->termios->c_cflag & CRTSCTS) {
+
+	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->irq_spinlock,flags);
 		info->serial_signals &= ~SerialSignal_RTS;
 	 	usc_set_serial_signals(info);
@@ -2401,8 +2401,8 @@ static void mgsl_unthrottle(struct tty_struct * tty)
 		else
 			mgsl_send_xchar(tty, START_CHAR(tty));
 	}
-	
- 	if (tty->termios->c_cflag & CRTSCTS) {
+
+	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->irq_spinlock,flags);
 		info->serial_signals |= SerialSignal_RTS;
 	 	usc_set_serial_signals(info);
@@ -3045,7 +3045,7 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 
 	/* Handle transition to B0 status */
 	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
+	    !(tty->termios.c_cflag & CBAUD)) {
 		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
 		spin_lock_irqsave(&info->irq_spinlock,flags);
 	 	usc_set_serial_signals(info);
@@ -3054,9 +3054,9 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 	
 	/* Handle transition away from B0 status */
 	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
+	    tty->termios.c_cflag & CBAUD) {
 		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) || 
+ 		if (!(tty->termios.c_cflag & CRTSCTS) || 
  		    !test_bit(TTY_THROTTLED, &tty->flags)) {
 			info->serial_signals |= SerialSignal_RTS;
  		}
@@ -3067,7 +3067,7 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
 	
 	/* Handle turning off CRTSCTS */
 	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		mgsl_start(tty);
 	}
@@ -3287,7 +3287,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		return 0;
 	}
 
-	if (tty->termios->c_cflag & CLOCAL)
+	if (tty->termios.c_cflag & CLOCAL)
 		do_clocal = true;
 
 	/* Wait for carrier detect and the line to become
@@ -3313,7 +3313,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	port->blocked_open++;
 	
 	while (1) {
-		if (tty->termios->c_cflag & CBAUD)
+		if (tty->termios.c_cflag & CBAUD)
 			tty_port_raise_dtr_rts(port);
 		
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -3338,9 +3338,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 			printk("%s(%d):block_til_ready blocking on %s count=%d\n",
 				 __FILE__,__LINE__, tty->driver->name, port->count );
 				 
-		tty_unlock();
+		tty_unlock(tty);
 		schedule();
-		tty_lock();
+		tty_lock(tty);
 	}
 	
 	set_current_state(TASK_RUNNING);
@@ -3362,6 +3362,29 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	
 }	/* end of block_til_ready() */
 
+static int mgsl_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct mgsl_struct *info;
+	int line = tty->index;
+
+	/* verify range of specified line number */
+	if (line >= mgsl_device_count) {
+		printk("%s(%d):mgsl_open with invalid line #%d.\n",
+			__FILE__, __LINE__, line);
+		return -ENODEV;
+	}
+
+	/* find the info structure for the specified line */
+	info = mgsl_device_list;
+	while (info && info->line != line)
+		info = info->next_device;
+	if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))
+		return -ENODEV;
+	tty->driver_data = info;
+
+	return tty_port_install(&info->port, driver, tty);
+}
+
 /* mgsl_open()
  *
  *	Called when a port is opened.  Init and enable port.
@@ -3374,26 +3397,10 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
  */
 static int mgsl_open(struct tty_struct *tty, struct file * filp)
 {
-	struct mgsl_struct	*info;
-	int 			retval, line;
+	struct mgsl_struct *info = tty->driver_data;
 	unsigned long flags;
+	int retval;
 
-	/* verify range of specified line number */	
-	line = tty->index;
-	if (line >= mgsl_device_count) {
-		printk("%s(%d):mgsl_open with invalid line #%d.\n",
-			__FILE__,__LINE__,line);
-		return -ENODEV;
-	}
-
-	/* find the info structure for the specified line */
-	info = mgsl_device_list;
-	while(info && info->line != line)
-		info = info->next_device;
-	if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))
-		return -ENODEV;
-	
-	tty->driver_data = info;
 	info->port.tty = tty;
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -4297,6 +4304,7 @@ static struct mgsl_struct* mgsl_allocate_device(void)
 }	/* end of mgsl_allocate_device()*/
 
 static const struct tty_operations mgsl_ops = {
+	.install = mgsl_install,
 	.open = mgsl_open,
 	.close = mgsl_close,
 	.write = mgsl_write,
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index aa1debf97cc..b38e954eedd 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -785,7 +785,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle transition to B0 status */
 	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
+	    !(tty->termios.c_cflag & CBAUD)) {
 		info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
 		spin_lock_irqsave(&info->lock,flags);
 		set_signals(info);
@@ -794,9 +794,9 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle transition away from B0 status */
 	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
+	    tty->termios.c_cflag & CBAUD) {
 		info->signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) ||
+ 		if (!(tty->termios.c_cflag & CRTSCTS) ||
  		    !test_bit(TTY_THROTTLED, &tty->flags)) {
 			info->signals |= SerialSignal_RTS;
  		}
@@ -807,7 +807,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle turning off CRTSCTS */
 	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		tx_release(tty);
 	}
@@ -1372,7 +1372,7 @@ static void throttle(struct tty_struct * tty)
 	DBGINFO(("%s throttle\n", info->device_name));
 	if (I_IXOFF(tty))
 		send_xchar(tty, STOP_CHAR(tty));
- 	if (tty->termios->c_cflag & CRTSCTS) {
+ 	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->lock,flags);
 		info->signals &= ~SerialSignal_RTS;
 	 	set_signals(info);
@@ -1397,7 +1397,7 @@ static void unthrottle(struct tty_struct * tty)
 		else
 			send_xchar(tty, START_CHAR(tty));
 	}
- 	if (tty->termios->c_cflag & CRTSCTS) {
+ 	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->lock,flags);
 		info->signals |= SerialSignal_RTS;
 	 	set_signals(info);
@@ -2053,7 +2053,7 @@ static void cts_change(struct slgt_info *info, unsigned short status)
 	wake_up_interruptible(&info->event_wait_q);
 	info->pending_bh |= BH_STATUS;
 
-	if (info->port.flags & ASYNC_CTS_FLOW) {
+	if (tty_port_cts_enabled(&info->port)) {
 		if (info->port.tty) {
 			if (info->port.tty->hw_stopped) {
 				if (info->signals & SerialSignal_CTS) {
@@ -2493,7 +2493,7 @@ static void shutdown(struct slgt_info *info)
 
 	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
 
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
+ 	if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
  		info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		set_signals(info);
 	}
@@ -2534,7 +2534,7 @@ static void program_hw(struct slgt_info *info)
 	get_signals(info);
 
 	if (info->netcount ||
-	    (info->port.tty && info->port.tty->termios->c_cflag & CREAD))
+	    (info->port.tty && info->port.tty->termios.c_cflag & CREAD))
 		rx_start(info);
 
 	spin_unlock_irqrestore(&info->lock,flags);
@@ -2548,11 +2548,11 @@ static void change_params(struct slgt_info *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->port.tty || !info->port.tty->termios)
+	if (!info->port.tty)
 		return;
 	DBGINFO(("%s change_params\n", info->device_name));
 
-	cflag = info->port.tty->termios->c_cflag;
+	cflag = info->port.tty->termios.c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -3292,7 +3292,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		return 0;
 	}
 
-	if (tty->termios->c_cflag & CLOCAL)
+	if (tty->termios.c_cflag & CLOCAL)
 		do_clocal = true;
 
 	/* Wait for carrier detect and the line to become
@@ -3314,7 +3314,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	port->blocked_open++;
 
 	while (1) {
-		if ((tty->termios->c_cflag & CBAUD))
+		if ((tty->termios.c_cflag & CBAUD))
 			tty_port_raise_dtr_rts(port);
 
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -3336,9 +3336,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		}
 
 		DBGINFO(("%s block_til_ready wait\n", tty->driver->name));
-		tty_unlock();
+		tty_unlock(tty);
 		schedule();
-		tty_lock();
+		tty_lock(tty);
 	}
 
 	set_current_state(TASK_RUNNING);
@@ -3689,8 +3689,11 @@ static void device_init(int adapter_num, struct pci_dev *pdev)
 		}
 	}
 
-	for (i=0; i < port_count; ++i)
-		tty_register_device(serial_driver, port_array[i]->line, &(port_array[i]->pdev->dev));
+	for (i = 0; i < port_count; ++i) {
+		struct slgt_info *info = port_array[i];
+		tty_port_register_device(&info->port, serial_driver, info->line,
+				&info->pdev->dev);
+	}
 }
 
 static int __devinit init_one(struct pci_dev *dev,
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index a3dddc12d2f..f17d9f3d84a 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -711,15 +711,11 @@ static void ldisc_receive_buf(struct tty_struct *tty,
 
 /* tty callbacks */
 
-/* Called when a port is opened.  Init and enable port.
- */
-static int open(struct tty_struct *tty, struct file *filp)
+static int install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	SLMP_INFO *info;
-	int retval, line;
-	unsigned long flags;
+	int line = tty->index;
 
-	line = tty->index;
 	if (line >= synclinkmp_device_count) {
 		printk("%s(%d): open with invalid line #%d.\n",
 			__FILE__,__LINE__,line);
@@ -727,17 +723,30 @@ static int open(struct tty_struct *tty, struct file *filp)
 	}
 
 	info = synclinkmp_device_list;
-	while(info && info->line != line)
+	while (info && info->line != line)
 		info = info->next_device;
 	if (sanity_check(info, tty->name, "open"))
 		return -ENODEV;
-	if ( info->init_error ) {
+	if (info->init_error) {
 		printk("%s(%d):%s device is not allocated, init error=%d\n",
-			__FILE__,__LINE__,info->device_name,info->init_error);
+			__FILE__, __LINE__, info->device_name,
+			info->init_error);
 		return -ENODEV;
 	}
 
 	tty->driver_data = info;
+
+	return tty_port_install(&info->port, driver, tty);
+}
+
+/* Called when a port is opened.  Init and enable port.
+ */
+static int open(struct tty_struct *tty, struct file *filp)
+{
+	SLMP_INFO *info = tty->driver_data;
+	unsigned long flags;
+	int retval;
+
 	info->port.tty = tty;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -873,7 +882,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle transition to B0 status */
 	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
+	    !(tty->termios.c_cflag & CBAUD)) {
 		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
 		spin_lock_irqsave(&info->lock,flags);
 	 	set_signals(info);
@@ -882,9 +891,9 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle transition away from B0 status */
 	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
+	    tty->termios.c_cflag & CBAUD) {
 		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) ||
+ 		if (!(tty->termios.c_cflag & CRTSCTS) ||
  		    !test_bit(TTY_THROTTLED, &tty->flags)) {
 			info->serial_signals |= SerialSignal_RTS;
  		}
@@ -895,7 +904,7 @@ static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 	/* Handle turning off CRTSCTS */
 	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
+	    !(tty->termios.c_cflag & CRTSCTS)) {
 		tty->hw_stopped = 0;
 		tx_release(tty);
 	}
@@ -1473,7 +1482,7 @@ static void throttle(struct tty_struct * tty)
 	if (I_IXOFF(tty))
 		send_xchar(tty, STOP_CHAR(tty));
 
- 	if (tty->termios->c_cflag & CRTSCTS) {
+ 	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->lock,flags);
 		info->serial_signals &= ~SerialSignal_RTS;
 	 	set_signals(info);
@@ -1502,7 +1511,7 @@ static void unthrottle(struct tty_struct * tty)
 			send_xchar(tty, START_CHAR(tty));
 	}
 
- 	if (tty->termios->c_cflag & CRTSCTS) {
+ 	if (tty->termios.c_cflag & CRTSCTS) {
 		spin_lock_irqsave(&info->lock,flags);
 		info->serial_signals |= SerialSignal_RTS;
 	 	set_signals(info);
@@ -2491,7 +2500,7 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
 			}
 		}
 
-		if ( (info->port.flags & ASYNC_CTS_FLOW) &&
+		if (tty_port_cts_enabled(&info->port) &&
 		     (status & MISCSTATUS_CTS_LATCHED) ) {
 			if ( info->port.tty ) {
 				if (info->port.tty->hw_stopped) {
@@ -2708,7 +2717,7 @@ static void shutdown(SLMP_INFO * info)
 
 	reset_port(info);
 
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
+ 	if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		set_signals(info);
 	}
@@ -2749,7 +2758,7 @@ static void program_hw(SLMP_INFO *info)
 
 	get_signals(info);
 
-	if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
+	if (info->netcount || (info->port.tty && info->port.tty->termios.c_cflag & CREAD) )
 		rx_start(info);
 
 	spin_unlock_irqrestore(&info->lock,flags);
@@ -2762,14 +2771,14 @@ static void change_params(SLMP_INFO *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->port.tty || !info->port.tty->termios)
+	if (!info->port.tty)
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s change_params()\n",
 			 __FILE__,__LINE__, info->device_name );
 
-	cflag = info->port.tty->termios->c_cflag;
+	cflag = info->port.tty->termios.c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -3306,7 +3315,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		return 0;
 	}
 
-	if (tty->termios->c_cflag & CLOCAL)
+	if (tty->termios.c_cflag & CLOCAL)
 		do_clocal = true;
 
 	/* Wait for carrier detect and the line to become
@@ -3332,7 +3341,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	port->blocked_open++;
 
 	while (1) {
-		if (tty->termios->c_cflag & CBAUD)
+		if (tty->termios.c_cflag & CBAUD)
 			tty_port_raise_dtr_rts(port);
 
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -3357,9 +3366,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 			printk("%s(%d):%s block_til_ready() count=%d\n",
 				 __FILE__,__LINE__, tty->driver->name, port->count );
 
-		tty_unlock();
+		tty_unlock(tty);
 		schedule();
-		tty_lock();
+		tty_lock(tty);
 	}
 
 	set_current_state(TASK_RUNNING);
@@ -3881,6 +3890,7 @@ static void device_init(int adapter_num, struct pci_dev *pdev)
 }
 
 static const struct tty_operations ops = {
+	.install = install,
 	.open = open,
 	.close = close,
 	.write = write,
diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c
index 7c586692062..b0b39b823cc 100644
--- a/drivers/tty/tty_audit.c
+++ b/drivers/tty/tty_audit.c
@@ -61,7 +61,7 @@ static void tty_audit_buf_put(struct tty_audit_buf *buf)
 }
 
 static void tty_audit_log(const char *description, struct task_struct *tsk,
-			  uid_t loginuid, unsigned sessionid, int major,
+			  kuid_t loginuid, unsigned sessionid, int major,
 			  int minor, unsigned char *data, size_t size)
 {
 	struct audit_buffer *ab;
@@ -69,11 +69,14 @@ static void tty_audit_log(const char *description, struct task_struct *tsk,
 	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_TTY);
 	if (ab) {
 		char name[sizeof(tsk->comm)];
-		uid_t uid = task_uid(tsk);
+		kuid_t uid = task_uid(tsk);
 
 		audit_log_format(ab, "%s pid=%u uid=%u auid=%u ses=%u "
 				 "major=%d minor=%d comm=", description,
-				 tsk->pid, uid, loginuid, sessionid,
+				 tsk->pid,
+				 from_kuid(&init_user_ns, uid),
+				 from_kuid(&init_user_ns, loginuid),
+				 sessionid,
 				 major, minor);
 		get_task_comm(name, tsk);
 		audit_log_untrustedstring(ab, name);
@@ -89,7 +92,7 @@ static void tty_audit_log(const char *description, struct task_struct *tsk,
  *	Generate an audit message from the contents of @buf, which is owned by
  *	@tsk with @loginuid.  @buf->mutex must be locked.
  */
-static void tty_audit_buf_push(struct task_struct *tsk, uid_t loginuid,
+static void tty_audit_buf_push(struct task_struct *tsk, kuid_t loginuid,
 			       unsigned int sessionid,
 			       struct tty_audit_buf *buf)
 {
@@ -112,7 +115,7 @@ static void tty_audit_buf_push(struct task_struct *tsk, uid_t loginuid,
  */
 static void tty_audit_buf_push_current(struct tty_audit_buf *buf)
 {
-	uid_t auid = audit_get_loginuid(current);
+	kuid_t auid = audit_get_loginuid(current);
 	unsigned int sessionid = audit_get_sessionid(current);
 	tty_audit_buf_push(current, auid, sessionid, buf);
 }
@@ -179,7 +182,7 @@ void tty_audit_tiocsti(struct tty_struct *tty, char ch)
 	}
 
 	if (should_audit && audit_enabled) {
-		uid_t auid;
+		kuid_t auid;
 		unsigned int sessionid;
 
 		auid = audit_get_loginuid(current);
@@ -199,7 +202,7 @@ void tty_audit_tiocsti(struct tty_struct *tty, char ch)
  * reference to the tty audit buffer if available.
  * Flush the buffer or return an appropriate error code.
  */
-int tty_audit_push_task(struct task_struct *tsk, uid_t loginuid, u32 sessionid)
+int tty_audit_push_task(struct task_struct *tsk, kuid_t loginuid, u32 sessionid)
 {
 	struct tty_audit_buf *buf = ERR_PTR(-EPERM);
 	unsigned long flags;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index b425c79675a..2ea176b2280 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -181,10 +181,13 @@ struct tty_struct *alloc_tty_struct(void)
 
 void free_tty_struct(struct tty_struct *tty)
 {
+	if (!tty)
+		return;
 	if (tty->dev)
 		put_device(tty->dev);
 	kfree(tty->write_buf);
 	tty_buffer_free_all(tty);
+	tty->magic = 0xDEADDEAD;
 	kfree(tty);
 }
 
@@ -573,7 +576,7 @@ void __tty_hangup(struct tty_struct *tty)
 	}
 	spin_unlock(&redirect_lock);
 
-	tty_lock();
+	tty_lock(tty);
 
 	/* some functions below drop BTM, so we need this bit */
 	set_bit(TTY_HUPPING, &tty->flags);
@@ -666,7 +669,7 @@ void __tty_hangup(struct tty_struct *tty)
 	clear_bit(TTY_HUPPING, &tty->flags);
 	tty_ldisc_enable(tty);
 
-	tty_unlock();
+	tty_unlock(tty);
 
 	if (f)
 		fput(f);
@@ -1103,12 +1106,12 @@ void tty_write_message(struct tty_struct *tty, char *msg)
 {
 	if (tty) {
 		mutex_lock(&tty->atomic_write_lock);
-		tty_lock();
+		tty_lock(tty);
 		if (tty->ops->write && !test_bit(TTY_CLOSING, &tty->flags)) {
-			tty_unlock();
+			tty_unlock(tty);
 			tty->ops->write(tty, msg, strlen(msg));
 		} else
-			tty_unlock();
+			tty_unlock(tty);
 		tty_write_unlock(tty);
 	}
 	return;
@@ -1163,10 +1166,8 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
 	struct file *p = NULL;
 
 	spin_lock(&redirect_lock);
-	if (redirect) {
-		get_file(redirect);
-		p = redirect;
-	}
+	if (redirect)
+		p = get_file(redirect);
 	spin_unlock(&redirect_lock);
 
 	if (p) {
@@ -1213,7 +1214,10 @@ static void pty_line_name(struct tty_driver *driver, int index, char *p)
  */
 static void tty_line_name(struct tty_driver *driver, int index, char *p)
 {
-	sprintf(p, "%s%d", driver->name, index + driver->name_base);
+	if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE)
+		strcpy(p, driver->name);
+	else
+		sprintf(p, "%s%d", driver->name, index + driver->name_base);
 }
 
 /**
@@ -1249,21 +1253,19 @@ int tty_init_termios(struct tty_struct *tty)
 	struct ktermios *tp;
 	int idx = tty->index;
 
-	tp = tty->driver->termios[idx];
-	if (tp == NULL) {
-		tp = kzalloc(sizeof(struct ktermios[2]), GFP_KERNEL);
-		if (tp == NULL)
-			return -ENOMEM;
-		memcpy(tp, &tty->driver->init_termios,
-						sizeof(struct ktermios));
-		tty->driver->termios[idx] = tp;
+	if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS)
+		tty->termios = tty->driver->init_termios;
+	else {
+		/* Check for lazy saved data */
+		tp = tty->driver->termios[idx];
+		if (tp != NULL)
+			tty->termios = *tp;
+		else
+			tty->termios = tty->driver->init_termios;
 	}
-	tty->termios = tp;
-	tty->termios_locked = tp + 1;
-
 	/* Compatibility until drivers always set this */
-	tty->termios->c_ispeed = tty_termios_input_baud_rate(tty->termios);
-	tty->termios->c_ospeed = tty_termios_baud_rate(tty->termios);
+	tty->termios.c_ispeed = tty_termios_input_baud_rate(&tty->termios);
+	tty->termios.c_ospeed = tty_termios_baud_rate(&tty->termios);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(tty_init_termios);
@@ -1403,10 +1405,18 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx)
 	}
 	initialize_tty_struct(tty, driver, idx);
 
+	tty_lock(tty);
 	retval = tty_driver_install_tty(driver, tty);
 	if (retval < 0)
 		goto err_deinit_tty;
 
+	if (!tty->port)
+		tty->port = driver->ports[idx];
+
+	WARN_RATELIMIT(!tty->port,
+			"%s: %s driver does not set tty->port. This will crash the kernel later. Fix the driver!\n",
+			__func__, tty->driver->name);
+
 	/*
 	 * Structures all installed ... call the ldisc open routines.
 	 * If we fail here just call release_tty to clean up.  No need
@@ -1415,9 +1425,11 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx)
 	retval = tty_ldisc_setup(tty, tty->link);
 	if (retval)
 		goto err_release_tty;
+	/* Return the tty locked so that it cannot vanish under the caller */
 	return tty;
 
 err_deinit_tty:
+	tty_unlock(tty);
 	deinitialize_tty_struct(tty);
 	free_tty_struct(tty);
 err_module_put:
@@ -1426,6 +1438,7 @@ err_module_put:
 
 	/* call the tty release_tty routine to clean out this slot */
 err_release_tty:
+	tty_unlock(tty);
 	printk_ratelimited(KERN_INFO "tty_init_dev: ldisc open failed, "
 				 "clearing slot %d\n", idx);
 	release_tty(tty, idx);
@@ -1436,22 +1449,25 @@ void tty_free_termios(struct tty_struct *tty)
 {
 	struct ktermios *tp;
 	int idx = tty->index;
-	/* Kill this flag and push into drivers for locking etc */
-	if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) {
-		/* FIXME: Locking on ->termios array */
-		tp = tty->termios;
-		tty->driver->termios[idx] = NULL;
-		kfree(tp);
+
+	/* If the port is going to reset then it has no termios to save */
+	if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS)
+		return;
+
+	/* Stash the termios data */
+	tp = tty->driver->termios[idx];
+	if (tp == NULL) {
+		tp = kmalloc(sizeof(struct ktermios), GFP_KERNEL);
+		if (tp == NULL) {
+			pr_warn("tty: no memory to save termios state.\n");
+			return;
+		}
+		tty->driver->termios[idx] = tp;
 	}
+	*tp = tty->termios;
 }
 EXPORT_SYMBOL(tty_free_termios);
 
-void tty_shutdown(struct tty_struct *tty)
-{
-	tty_driver_remove_tty(tty->driver, tty);
-	tty_free_termios(tty);
-}
-EXPORT_SYMBOL(tty_shutdown);
 
 /**
  *	release_one_tty		-	release tty structure memory
@@ -1462,7 +1478,6 @@ EXPORT_SYMBOL(tty_shutdown);
  *	in use. It also gets called when setup of a device fails.
  *
  *	Locking:
- *		tty_mutex - sometimes only
  *		takes the file list lock internally when working on the list
  *	of ttys that the driver keeps.
  *
@@ -1495,11 +1510,6 @@ static void queue_release_one_tty(struct kref *kref)
 {
 	struct tty_struct *tty = container_of(kref, struct tty_struct, kref);
 
-	if (tty->ops->shutdown)
-		tty->ops->shutdown(tty);
-	else
-		tty_shutdown(tty);
-
 	/* The hangup queue is now free so we can reuse it rather than
 	   waste a chunk of memory for each port */
 	INIT_WORK(&tty->hangup_work, release_one_tty);
@@ -1528,16 +1538,20 @@ EXPORT_SYMBOL(tty_kref_put);
  *	and decrement the refcount of the backing module.
  *
  *	Locking:
- *		tty_mutex - sometimes only
+ *		tty_mutex
  *		takes the file list lock internally when working on the list
  *	of ttys that the driver keeps.
- *		FIXME: should we require tty_mutex is held here ??
  *
  */
 static void release_tty(struct tty_struct *tty, int idx)
 {
 	/* This should always be true but check for the moment */
 	WARN_ON(tty->index != idx);
+	WARN_ON(!mutex_is_locked(&tty_mutex));
+	if (tty->ops->shutdown)
+		tty->ops->shutdown(tty);
+	tty_free_termios(tty);
+	tty_driver_remove_tty(tty->driver, tty);
 
 	if (tty->link)
 		tty_kref_put(tty->link);
@@ -1572,22 +1586,12 @@ static int tty_release_checks(struct tty_struct *tty, struct tty_struct *o_tty,
 				__func__, idx, tty->name);
 		return -1;
 	}
-	if (tty->termios != tty->driver->termios[idx]) {
-		printk(KERN_DEBUG "%s: driver.termios[%d] not termios for (%s)\n",
-				__func__, idx, tty->name);
-		return -1;
-	}
 	if (tty->driver->other) {
 		if (o_tty != tty->driver->other->ttys[idx]) {
 			printk(KERN_DEBUG "%s: other->table[%d] not o_tty for (%s)\n",
 					__func__, idx, tty->name);
 			return -1;
 		}
-		if (o_tty->termios != tty->driver->other->termios[idx]) {
-			printk(KERN_DEBUG "%s: other->termios[%d] not o_termios for (%s)\n",
-					__func__, idx, tty->name);
-			return -1;
-		}
 		if (o_tty->link != tty) {
 			printk(KERN_DEBUG "%s: bad pty pointers\n", __func__);
 			return -1;
@@ -1628,7 +1632,7 @@ int tty_release(struct inode *inode, struct file *filp)
 	if (tty_paranoia_check(tty, inode, __func__))
 		return 0;
 
-	tty_lock();
+	tty_lock(tty);
 	check_tty_count(tty, __func__);
 
 	__tty_fasync(-1, filp, 0);
@@ -1637,10 +1641,11 @@ int tty_release(struct inode *inode, struct file *filp)
 	pty_master = (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
 		      tty->driver->subtype == PTY_TYPE_MASTER);
 	devpts = (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) != 0;
+	/* Review: parallel close */
 	o_tty = tty->link;
 
 	if (tty_release_checks(tty, o_tty, idx)) {
-		tty_unlock();
+		tty_unlock(tty);
 		return 0;
 	}
 
@@ -1652,7 +1657,7 @@ int tty_release(struct inode *inode, struct file *filp)
 	if (tty->ops->close)
 		tty->ops->close(tty, filp);
 
-	tty_unlock();
+	tty_unlock(tty);
 	/*
 	 * Sanity check: if tty->count is going to zero, there shouldn't be
 	 * any waiters on tty->read_wait or tty->write_wait.  We test the
@@ -1675,7 +1680,7 @@ int tty_release(struct inode *inode, struct file *filp)
 		   opens on /dev/tty */
 
 		mutex_lock(&tty_mutex);
-		tty_lock();
+		tty_lock_pair(tty, o_tty);
 		tty_closing = tty->count <= 1;
 		o_tty_closing = o_tty &&
 			(o_tty->count <= (pty_master ? 1 : 0));
@@ -1706,7 +1711,7 @@ int tty_release(struct inode *inode, struct file *filp)
 
 		printk(KERN_WARNING "%s: %s: read/write wait queue active!\n",
 				__func__, tty_name(tty, buf));
-		tty_unlock();
+		tty_unlock_pair(tty, o_tty);
 		mutex_unlock(&tty_mutex);
 		schedule();
 	}
@@ -1715,6 +1720,9 @@ int tty_release(struct inode *inode, struct file *filp)
 	 * The closing flags are now consistent with the open counts on
 	 * both sides, and we've completed the last operation that could
 	 * block, so it's safe to proceed with closing.
+	 *
+	 * We must *not* drop the tty_mutex until we ensure that a further
+	 * entry into tty_open can not pick up this tty.
 	 */
 	if (pty_master) {
 		if (--o_tty->count < 0) {
@@ -1766,12 +1774,13 @@ int tty_release(struct inode *inode, struct file *filp)
 	}
 
 	mutex_unlock(&tty_mutex);
+	tty_unlock_pair(tty, o_tty);
+	/* At this point the TTY_CLOSING flag should ensure a dead tty
+	   cannot be re-opened by a racing opener */
 
 	/* check whether both sides are closing ... */
-	if (!tty_closing || (o_tty && !o_tty_closing)) {
-		tty_unlock();
+	if (!tty_closing || (o_tty && !o_tty_closing))
 		return 0;
-	}
 
 #ifdef TTY_DEBUG_HANGUP
 	printk(KERN_DEBUG "%s: freeing tty structure...\n", __func__);
@@ -1782,14 +1791,17 @@ int tty_release(struct inode *inode, struct file *filp)
 	tty_ldisc_release(tty, o_tty);
 	/*
 	 * The release_tty function takes care of the details of clearing
-	 * the slots and preserving the termios structure.
+	 * the slots and preserving the termios structure. The tty_unlock_pair
+	 * should be safe as we keep a kref while the tty is locked (so the
+	 * unlock never unlocks a freed tty).
 	 */
+	mutex_lock(&tty_mutex);
 	release_tty(tty, idx);
+	mutex_unlock(&tty_mutex);
 
 	/* Make this pty number available for reallocation */
 	if (devpts)
 		devpts_kill_index(inode, idx);
-	tty_unlock();
 	return 0;
 }
 
@@ -1893,6 +1905,9 @@ static struct tty_driver *tty_lookup_driver(dev_t device, struct file *filp,
  *	Locking: tty_mutex protects tty, tty_lookup_driver and tty_init_dev.
  *		 tty->count should protect the rest.
  *		 ->siglock protects ->signal/->sighand
+ *
+ *	Note: the tty_unlock/lock cases without a ref are only safe due to
+ *	tty_mutex
  */
 
 static int tty_open(struct inode *inode, struct file *filp)
@@ -1916,8 +1931,7 @@ retry_open:
 	retval = 0;
 
 	mutex_lock(&tty_mutex);
-	tty_lock();
-
+	/* This is protected by the tty_mutex */
 	tty = tty_open_current_tty(device, filp);
 	if (IS_ERR(tty)) {
 		retval = PTR_ERR(tty);
@@ -1938,17 +1952,19 @@ retry_open:
 	}
 
 	if (tty) {
+		tty_lock(tty);
 		retval = tty_reopen(tty);
-		if (retval)
+		if (retval < 0) {
+			tty_unlock(tty);
 			tty = ERR_PTR(retval);
-	} else
+		}
+	} else	/* Returns with the tty_lock held for now */
 		tty = tty_init_dev(driver, index);
 
 	mutex_unlock(&tty_mutex);
 	if (driver)
 		tty_driver_kref_put(driver);
 	if (IS_ERR(tty)) {
-		tty_unlock();
 		retval = PTR_ERR(tty);
 		goto err_file;
 	}
@@ -1977,7 +1993,7 @@ retry_open:
 		printk(KERN_DEBUG "%s: error %d in opening %s...\n", __func__,
 				retval, tty->name);
 #endif
-		tty_unlock(); /* need to call tty_release without BTM */
+		tty_unlock(tty); /* need to call tty_release without BTM */
 		tty_release(inode, filp);
 		if (retval != -ERESTARTSYS)
 			return retval;
@@ -1989,17 +2005,15 @@ retry_open:
 		/*
 		 * Need to reset f_op in case a hangup happened.
 		 */
-		tty_lock();
 		if (filp->f_op == &hung_up_tty_fops)
 			filp->f_op = &tty_fops;
-		tty_unlock();
 		goto retry_open;
 	}
-	tty_unlock();
+	tty_unlock(tty);
 
 
 	mutex_lock(&tty_mutex);
-	tty_lock();
+	tty_lock(tty);
 	spin_lock_irq(&current->sighand->siglock);
 	if (!noctty &&
 	    current->signal->leader &&
@@ -2007,11 +2021,10 @@ retry_open:
 	    tty->session == NULL)
 		__proc_set_tty(current, tty);
 	spin_unlock_irq(&current->sighand->siglock);
-	tty_unlock();
+	tty_unlock(tty);
 	mutex_unlock(&tty_mutex);
 	return 0;
 err_unlock:
-	tty_unlock();
 	mutex_unlock(&tty_mutex);
 	/* after locks to avoid deadlock */
 	if (!IS_ERR_OR_NULL(driver))
@@ -2094,10 +2107,13 @@ out:
 
 static int tty_fasync(int fd, struct file *filp, int on)
 {
+	struct tty_struct *tty = file_tty(filp);
 	int retval;
-	tty_lock();
+
+	tty_lock(tty);
 	retval = __tty_fasync(fd, filp, on);
-	tty_unlock();
+	tty_unlock(tty);
+
 	return retval;
 }
 
@@ -2246,8 +2262,7 @@ static int tioccons(struct file *file)
 		spin_unlock(&redirect_lock);
 		return -EBUSY;
 	}
-	get_file(file);
-	redirect = file;
+	redirect = get_file(file);
 	spin_unlock(&redirect_lock);
 	return 0;
 }
@@ -2756,7 +2771,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	if (ld->ops->ioctl) {
 		retval = ld->ops->ioctl(tty, file, cmd, arg);
 		if (retval == -ENOIOCTLCMD)
-			retval = -EINVAL;
+			retval = -ENOTTY;
 	}
 	tty_ldisc_deref(ld);
 	return retval;
@@ -2791,6 +2806,13 @@ static long tty_compat_ioctl(struct file *file, unsigned int cmd,
 }
 #endif
 
+static int this_tty(const void *t, struct file *file, unsigned fd)
+{
+	if (likely(file->f_op->read != tty_read))
+		return 0;
+	return file_tty(file) != t ? 0 : fd + 1;
+}
+	
 /*
  * This implements the "Secure Attention Key" ---  the idea is to
  * prevent trojan horses by killing all processes associated with this
@@ -2818,8 +2840,6 @@ void __do_SAK(struct tty_struct *tty)
 	struct task_struct *g, *p;
 	struct pid *session;
 	int		i;
-	struct file	*filp;
-	struct fdtable *fdt;
 
 	if (!tty)
 		return;
@@ -2849,27 +2869,12 @@ void __do_SAK(struct tty_struct *tty)
 			continue;
 		}
 		task_lock(p);
-		if (p->files) {
-			/*
-			 * We don't take a ref to the file, so we must
-			 * hold ->file_lock instead.
-			 */
-			spin_lock(&p->files->file_lock);
-			fdt = files_fdtable(p->files);
-			for (i = 0; i < fdt->max_fds; i++) {
-				filp = fcheck_files(p->files, i);
-				if (!filp)
-					continue;
-				if (filp->f_op->read == tty_read &&
-				    file_tty(filp) == tty) {
-					printk(KERN_NOTICE "SAK: killed process %d"
-					    " (%s): fd#%d opened to the tty\n",
-					    task_pid_nr(p), p->comm, i);
-					force_sig(SIGKILL, p);
-					break;
-				}
-			}
-			spin_unlock(&p->files->file_lock);
+		i = iterate_fd(p->files, 0, this_tty, tty);
+		if (i != 0) {
+			printk(KERN_NOTICE "SAK: killed process %d"
+			    " (%s): fd#%d opened to the tty\n",
+				    task_pid_nr(p), p->comm, i - 1);
+			force_sig(SIGKILL, p);
 		}
 		task_unlock(p);
 	} while_each_thread(g, p);
@@ -2934,6 +2939,7 @@ void initialize_tty_struct(struct tty_struct *tty,
 	tty->pgrp = NULL;
 	tty->overrun_time = jiffies;
 	tty_buffer_init(tty);
+	mutex_init(&tty->legacy_mutex);
 	mutex_init(&tty->termios_mutex);
 	mutex_init(&tty->ldisc_mutex);
 	init_waitqueue_head(&tty->write_wait);
@@ -2991,6 +2997,15 @@ EXPORT_SYMBOL_GPL(tty_put_char);
 
 struct class *tty_class;
 
+static int tty_cdev_add(struct tty_driver *driver, dev_t dev,
+		unsigned int index, unsigned int count)
+{
+	/* init here, since reused cdevs cause crashes */
+	cdev_init(&driver->cdevs[index], &tty_fops);
+	driver->cdevs[index].owner = driver->owner;
+	return cdev_add(&driver->cdevs[index], dev, count);
+}
+
 /**
  *	tty_register_device - register a tty device
  *	@driver: the tty driver that describes the tty device
@@ -3013,8 +3028,46 @@ struct class *tty_class;
 struct device *tty_register_device(struct tty_driver *driver, unsigned index,
 				   struct device *device)
 {
+	return tty_register_device_attr(driver, index, device, NULL, NULL);
+}
+EXPORT_SYMBOL(tty_register_device);
+
+static void tty_device_create_release(struct device *dev)
+{
+	pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
+	kfree(dev);
+}
+
+/**
+ *	tty_register_device_attr - register a tty device
+ *	@driver: the tty driver that describes the tty device
+ *	@index: the index in the tty driver for this tty device
+ *	@device: a struct device that is associated with this tty device.
+ *		This field is optional, if there is no known struct device
+ *		for this tty device it can be set to NULL safely.
+ *	@drvdata: Driver data to be set to device.
+ *	@attr_grp: Attribute group to be set on device.
+ *
+ *	Returns a pointer to the struct device for this tty device
+ *	(or ERR_PTR(-EFOO) on error).
+ *
+ *	This call is required to be made to register an individual tty device
+ *	if the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set.  If
+ *	that bit is not set, this function should not be called by a tty
+ *	driver.
+ *
+ *	Locking: ??
+ */
+struct device *tty_register_device_attr(struct tty_driver *driver,
+				   unsigned index, struct device *device,
+				   void *drvdata,
+				   const struct attribute_group **attr_grp)
+{
 	char name[64];
-	dev_t dev = MKDEV(driver->major, driver->minor_start) + index;
+	dev_t devt = MKDEV(driver->major, driver->minor_start) + index;
+	struct device *dev = NULL;
+	int retval = -ENODEV;
+	bool cdev = false;
 
 	if (index >= driver->num) {
 		printk(KERN_ERR "Attempt to register invalid tty line number "
@@ -3027,9 +3080,40 @@ struct device *tty_register_device(struct tty_driver *driver, unsigned index,
 	else
 		tty_line_name(driver, index, name);
 
-	return device_create(tty_class, device, dev, NULL, name);
+	if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)) {
+		retval = tty_cdev_add(driver, devt, index, 1);
+		if (retval)
+			goto error;
+		cdev = true;
+	}
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		retval = -ENOMEM;
+		goto error;
+	}
+
+	dev->devt = devt;
+	dev->class = tty_class;
+	dev->parent = device;
+	dev->release = tty_device_create_release;
+	dev_set_name(dev, "%s", name);
+	dev->groups = attr_grp;
+	dev_set_drvdata(dev, drvdata);
+
+	retval = device_register(dev);
+	if (retval)
+		goto error;
+
+	return dev;
+
+error:
+	put_device(dev);
+	if (cdev)
+		cdev_del(&driver->cdevs[index]);
+	return ERR_PTR(retval);
 }
-EXPORT_SYMBOL(tty_register_device);
+EXPORT_SYMBOL_GPL(tty_register_device_attr);
 
 /**
  * 	tty_unregister_device - unregister a tty device
@@ -3046,31 +3130,82 @@ void tty_unregister_device(struct tty_driver *driver, unsigned index)
 {
 	device_destroy(tty_class,
 		MKDEV(driver->major, driver->minor_start) + index);
+	if (!(driver->flags & TTY_DRIVER_DYNAMIC_ALLOC))
+		cdev_del(&driver->cdevs[index]);
 }
 EXPORT_SYMBOL(tty_unregister_device);
 
-struct tty_driver *__alloc_tty_driver(int lines, struct module *owner)
+/**
+ * __tty_alloc_driver -- allocate tty driver
+ * @lines: count of lines this driver can handle at most
+ * @owner: module which is repsonsible for this driver
+ * @flags: some of TTY_DRIVER_* flags, will be set in driver->flags
+ *
+ * This should not be called directly, some of the provided macros should be
+ * used instead. Use IS_ERR and friends on @retval.
+ */
+struct tty_driver *__tty_alloc_driver(unsigned int lines, struct module *owner,
+		unsigned long flags)
 {
 	struct tty_driver *driver;
+	unsigned int cdevs = 1;
+	int err;
+
+	if (!lines || (flags & TTY_DRIVER_UNNUMBERED_NODE && lines > 1))
+		return ERR_PTR(-EINVAL);
 
 	driver = kzalloc(sizeof(struct tty_driver), GFP_KERNEL);
-	if (driver) {
-		kref_init(&driver->kref);
-		driver->magic = TTY_DRIVER_MAGIC;
-		driver->num = lines;
-		driver->owner = owner;
-		/* later we'll move allocation of tables here */
+	if (!driver)
+		return ERR_PTR(-ENOMEM);
+
+	kref_init(&driver->kref);
+	driver->magic = TTY_DRIVER_MAGIC;
+	driver->num = lines;
+	driver->owner = owner;
+	driver->flags = flags;
+
+	if (!(flags & TTY_DRIVER_DEVPTS_MEM)) {
+		driver->ttys = kcalloc(lines, sizeof(*driver->ttys),
+				GFP_KERNEL);
+		driver->termios = kcalloc(lines, sizeof(*driver->termios),
+				GFP_KERNEL);
+		if (!driver->ttys || !driver->termios) {
+			err = -ENOMEM;
+			goto err_free_all;
+		}
+	}
+
+	if (!(flags & TTY_DRIVER_DYNAMIC_ALLOC)) {
+		driver->ports = kcalloc(lines, sizeof(*driver->ports),
+				GFP_KERNEL);
+		if (!driver->ports) {
+			err = -ENOMEM;
+			goto err_free_all;
+		}
+		cdevs = lines;
 	}
+
+	driver->cdevs = kcalloc(cdevs, sizeof(*driver->cdevs), GFP_KERNEL);
+	if (!driver->cdevs) {
+		err = -ENOMEM;
+		goto err_free_all;
+	}
+
 	return driver;
+err_free_all:
+	kfree(driver->ports);
+	kfree(driver->ttys);
+	kfree(driver->termios);
+	kfree(driver);
+	return ERR_PTR(err);
 }
-EXPORT_SYMBOL(__alloc_tty_driver);
+EXPORT_SYMBOL(__tty_alloc_driver);
 
 static void destruct_tty_driver(struct kref *kref)
 {
 	struct tty_driver *driver = container_of(kref, struct tty_driver, kref);
 	int i;
 	struct ktermios *tp;
-	void *p;
 
 	if (driver->flags & TTY_DRIVER_INSTALLED) {
 		/*
@@ -3087,13 +3222,14 @@ static void destruct_tty_driver(struct kref *kref)
 			if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV))
 				tty_unregister_device(driver, i);
 		}
-		p = driver->ttys;
 		proc_tty_unregister_driver(driver);
-		driver->ttys = NULL;
-		driver->termios = NULL;
-		kfree(p);
-		cdev_del(&driver->cdev);
+		if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC)
+			cdev_del(&driver->cdevs[0]);
 	}
+	kfree(driver->cdevs);
+	kfree(driver->ports);
+	kfree(driver->termios);
+	kfree(driver->ttys);
 	kfree(driver);
 }
 
@@ -3124,15 +3260,8 @@ int tty_register_driver(struct tty_driver *driver)
 	int error;
 	int i;
 	dev_t dev;
-	void **p = NULL;
 	struct device *d;
 
-	if (!(driver->flags & TTY_DRIVER_DEVPTS_MEM) && driver->num) {
-		p = kzalloc(driver->num * 2 * sizeof(void *), GFP_KERNEL);
-		if (!p)
-			return -ENOMEM;
-	}
-
 	if (!driver->major) {
 		error = alloc_chrdev_region(&dev, driver->minor_start,
 						driver->num, driver->name);
@@ -3144,28 +3273,13 @@ int tty_register_driver(struct tty_driver *driver)
 		dev = MKDEV(driver->major, driver->minor_start);
 		error = register_chrdev_region(dev, driver->num, driver->name);
 	}
-	if (error < 0) {
-		kfree(p);
-		return error;
-	}
+	if (error < 0)
+		goto err;
 
-	if (p) {
-		driver->ttys = (struct tty_struct **)p;
-		driver->termios = (struct ktermios **)(p + driver->num);
-	} else {
-		driver->ttys = NULL;
-		driver->termios = NULL;
-	}
-
-	cdev_init(&driver->cdev, &tty_fops);
-	driver->cdev.owner = driver->owner;
-	error = cdev_add(&driver->cdev, dev, driver->num);
-	if (error) {
-		unregister_chrdev_region(dev, driver->num);
-		driver->ttys = NULL;
-		driver->termios = NULL;
-		kfree(p);
-		return error;
+	if (driver->flags & TTY_DRIVER_DYNAMIC_ALLOC) {
+		error = tty_cdev_add(driver, dev, 0, driver->num);
+		if (error)
+			goto err_unreg_char;
 	}
 
 	mutex_lock(&tty_mutex);
@@ -3177,7 +3291,7 @@ int tty_register_driver(struct tty_driver *driver)
 			d = tty_register_device(driver, i, NULL);
 			if (IS_ERR(d)) {
 				error = PTR_ERR(d);
-				goto err;
+				goto err_unreg_devs;
 			}
 		}
 	}
@@ -3185,7 +3299,7 @@ int tty_register_driver(struct tty_driver *driver)
 	driver->flags |= TTY_DRIVER_INSTALLED;
 	return 0;
 
-err:
+err_unreg_devs:
 	for (i--; i >= 0; i--)
 		tty_unregister_device(driver, i);
 
@@ -3193,13 +3307,11 @@ err:
 	list_del(&driver->tty_drivers);
 	mutex_unlock(&tty_mutex);
 
+err_unreg_char:
 	unregister_chrdev_region(dev, driver->num);
-	driver->ttys = NULL;
-	driver->termios = NULL;
-	kfree(p);
+err:
 	return error;
 }
-
 EXPORT_SYMBOL(tty_register_driver);
 
 /*
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index a1b9a2f6856..12b1fa0f4f8 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -410,7 +410,7 @@ EXPORT_SYMBOL_GPL(tty_termios_encode_baud_rate);
 
 void tty_encode_baud_rate(struct tty_struct *tty, speed_t ibaud, speed_t obaud)
 {
-	tty_termios_encode_baud_rate(tty->termios, ibaud, obaud);
+	tty_termios_encode_baud_rate(&tty->termios, ibaud, obaud);
 }
 EXPORT_SYMBOL_GPL(tty_encode_baud_rate);
 
@@ -427,7 +427,7 @@ EXPORT_SYMBOL_GPL(tty_encode_baud_rate);
 
 speed_t tty_get_baud_rate(struct tty_struct *tty)
 {
-	speed_t baud = tty_termios_baud_rate(tty->termios);
+	speed_t baud = tty_termios_baud_rate(&tty->termios);
 
 	if (baud == 38400 && tty->alt_speed) {
 		if (!tty->warned) {
@@ -509,14 +509,14 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
 	/* FIXME: we need to decide on some locking/ordering semantics
 	   for the set_termios notification eventually */
 	mutex_lock(&tty->termios_mutex);
-	old_termios = *tty->termios;
-	*tty->termios = *new_termios;
-	unset_locked_termios(tty->termios, &old_termios, tty->termios_locked);
+	old_termios = tty->termios;
+	tty->termios = *new_termios;
+	unset_locked_termios(&tty->termios, &old_termios, &tty->termios_locked);
 
 	/* See if packet mode change of state. */
 	if (tty->link && tty->link->packet) {
 		int extproc = (old_termios.c_lflag & EXTPROC) |
-				(tty->termios->c_lflag & EXTPROC);
+				(tty->termios.c_lflag & EXTPROC);
 		int old_flow = ((old_termios.c_iflag & IXON) &&
 				(old_termios.c_cc[VSTOP] == '\023') &&
 				(old_termios.c_cc[VSTART] == '\021'));
@@ -542,7 +542,7 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
 	if (tty->ops->set_termios)
 		(*tty->ops->set_termios)(tty, &old_termios);
 	else
-		tty_termios_copy_hw(tty->termios, &old_termios);
+		tty_termios_copy_hw(&tty->termios, &old_termios);
 
 	ld = tty_ldisc_ref(tty);
 	if (ld != NULL) {
@@ -578,7 +578,7 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt)
 		return retval;
 
 	mutex_lock(&tty->termios_mutex);
-	memcpy(&tmp_termios, tty->termios, sizeof(struct ktermios));
+	tmp_termios = tty->termios;
 	mutex_unlock(&tty->termios_mutex);
 
 	if (opt & TERMIOS_TERMIO) {
@@ -632,14 +632,14 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt)
 static void copy_termios(struct tty_struct *tty, struct ktermios *kterm)
 {
 	mutex_lock(&tty->termios_mutex);
-	memcpy(kterm, tty->termios, sizeof(struct ktermios));
+	*kterm = tty->termios;
 	mutex_unlock(&tty->termios_mutex);
 }
 
 static void copy_termios_locked(struct tty_struct *tty, struct ktermios *kterm)
 {
 	mutex_lock(&tty->termios_mutex);
-	memcpy(kterm, tty->termios_locked, sizeof(struct ktermios));
+	*kterm = tty->termios_locked;
 	mutex_unlock(&tty->termios_mutex);
 }
 
@@ -707,16 +707,16 @@ static int get_sgflags(struct tty_struct *tty)
 {
 	int flags = 0;
 
-	if (!(tty->termios->c_lflag & ICANON)) {
-		if (tty->termios->c_lflag & ISIG)
+	if (!(tty->termios.c_lflag & ICANON)) {
+		if (tty->termios.c_lflag & ISIG)
 			flags |= 0x02;		/* cbreak */
 		else
 			flags |= 0x20;		/* raw */
 	}
-	if (tty->termios->c_lflag & ECHO)
+	if (tty->termios.c_lflag & ECHO)
 		flags |= 0x08;			/* echo */
-	if (tty->termios->c_oflag & OPOST)
-		if (tty->termios->c_oflag & ONLCR)
+	if (tty->termios.c_oflag & OPOST)
+		if (tty->termios.c_oflag & ONLCR)
 			flags |= 0x10;		/* crmod */
 	return flags;
 }
@@ -726,10 +726,10 @@ static int get_sgttyb(struct tty_struct *tty, struct sgttyb __user *sgttyb)
 	struct sgttyb tmp;
 
 	mutex_lock(&tty->termios_mutex);
-	tmp.sg_ispeed = tty->termios->c_ispeed;
-	tmp.sg_ospeed = tty->termios->c_ospeed;
-	tmp.sg_erase = tty->termios->c_cc[VERASE];
-	tmp.sg_kill = tty->termios->c_cc[VKILL];
+	tmp.sg_ispeed = tty->termios.c_ispeed;
+	tmp.sg_ospeed = tty->termios.c_ospeed;
+	tmp.sg_erase = tty->termios.c_cc[VERASE];
+	tmp.sg_kill = tty->termios.c_cc[VKILL];
 	tmp.sg_flags = get_sgflags(tty);
 	mutex_unlock(&tty->termios_mutex);
 
@@ -787,7 +787,7 @@ static int set_sgttyb(struct tty_struct *tty, struct sgttyb __user *sgttyb)
 		return -EFAULT;
 
 	mutex_lock(&tty->termios_mutex);
-	termios = *tty->termios;
+	termios = tty->termios;
 	termios.c_cc[VERASE] = tmp.sg_erase;
 	termios.c_cc[VKILL] = tmp.sg_kill;
 	set_sgflags(&termios, tmp.sg_flags);
@@ -808,12 +808,12 @@ static int get_tchars(struct tty_struct *tty, struct tchars __user *tchars)
 	struct tchars tmp;
 
 	mutex_lock(&tty->termios_mutex);
-	tmp.t_intrc = tty->termios->c_cc[VINTR];
-	tmp.t_quitc = tty->termios->c_cc[VQUIT];
-	tmp.t_startc = tty->termios->c_cc[VSTART];
-	tmp.t_stopc = tty->termios->c_cc[VSTOP];
-	tmp.t_eofc = tty->termios->c_cc[VEOF];
-	tmp.t_brkc = tty->termios->c_cc[VEOL2];	/* what is brkc anyway? */
+	tmp.t_intrc = tty->termios.c_cc[VINTR];
+	tmp.t_quitc = tty->termios.c_cc[VQUIT];
+	tmp.t_startc = tty->termios.c_cc[VSTART];
+	tmp.t_stopc = tty->termios.c_cc[VSTOP];
+	tmp.t_eofc = tty->termios.c_cc[VEOF];
+	tmp.t_brkc = tty->termios.c_cc[VEOL2];	/* what is brkc anyway? */
 	mutex_unlock(&tty->termios_mutex);
 	return copy_to_user(tchars, &tmp, sizeof(tmp)) ? -EFAULT : 0;
 }
@@ -825,12 +825,12 @@ static int set_tchars(struct tty_struct *tty, struct tchars __user *tchars)
 	if (copy_from_user(&tmp, tchars, sizeof(tmp)))
 		return -EFAULT;
 	mutex_lock(&tty->termios_mutex);
-	tty->termios->c_cc[VINTR] = tmp.t_intrc;
-	tty->termios->c_cc[VQUIT] = tmp.t_quitc;
-	tty->termios->c_cc[VSTART] = tmp.t_startc;
-	tty->termios->c_cc[VSTOP] = tmp.t_stopc;
-	tty->termios->c_cc[VEOF] = tmp.t_eofc;
-	tty->termios->c_cc[VEOL2] = tmp.t_brkc;	/* what is brkc anyway? */
+	tty->termios.c_cc[VINTR] = tmp.t_intrc;
+	tty->termios.c_cc[VQUIT] = tmp.t_quitc;
+	tty->termios.c_cc[VSTART] = tmp.t_startc;
+	tty->termios.c_cc[VSTOP] = tmp.t_stopc;
+	tty->termios.c_cc[VEOF] = tmp.t_eofc;
+	tty->termios.c_cc[VEOL2] = tmp.t_brkc;	/* what is brkc anyway? */
 	mutex_unlock(&tty->termios_mutex);
 	return 0;
 }
@@ -842,14 +842,14 @@ static int get_ltchars(struct tty_struct *tty, struct ltchars __user *ltchars)
 	struct ltchars tmp;
 
 	mutex_lock(&tty->termios_mutex);
-	tmp.t_suspc = tty->termios->c_cc[VSUSP];
+	tmp.t_suspc = tty->termios.c_cc[VSUSP];
 	/* what is dsuspc anyway? */
-	tmp.t_dsuspc = tty->termios->c_cc[VSUSP];
-	tmp.t_rprntc = tty->termios->c_cc[VREPRINT];
+	tmp.t_dsuspc = tty->termios.c_cc[VSUSP];
+	tmp.t_rprntc = tty->termios.c_cc[VREPRINT];
 	/* what is flushc anyway? */
-	tmp.t_flushc = tty->termios->c_cc[VEOL2];
-	tmp.t_werasc = tty->termios->c_cc[VWERASE];
-	tmp.t_lnextc = tty->termios->c_cc[VLNEXT];
+	tmp.t_flushc = tty->termios.c_cc[VEOL2];
+	tmp.t_werasc = tty->termios.c_cc[VWERASE];
+	tmp.t_lnextc = tty->termios.c_cc[VLNEXT];
 	mutex_unlock(&tty->termios_mutex);
 	return copy_to_user(ltchars, &tmp, sizeof(tmp)) ? -EFAULT : 0;
 }
@@ -862,14 +862,14 @@ static int set_ltchars(struct tty_struct *tty, struct ltchars __user *ltchars)
 		return -EFAULT;
 
 	mutex_lock(&tty->termios_mutex);
-	tty->termios->c_cc[VSUSP] = tmp.t_suspc;
+	tty->termios.c_cc[VSUSP] = tmp.t_suspc;
 	/* what is dsuspc anyway? */
-	tty->termios->c_cc[VEOL2] = tmp.t_dsuspc;
-	tty->termios->c_cc[VREPRINT] = tmp.t_rprntc;
+	tty->termios.c_cc[VEOL2] = tmp.t_dsuspc;
+	tty->termios.c_cc[VREPRINT] = tmp.t_rprntc;
 	/* what is flushc anyway? */
-	tty->termios->c_cc[VEOL2] = tmp.t_flushc;
-	tty->termios->c_cc[VWERASE] = tmp.t_werasc;
-	tty->termios->c_cc[VLNEXT] = tmp.t_lnextc;
+	tty->termios.c_cc[VEOL2] = tmp.t_flushc;
+	tty->termios.c_cc[VWERASE] = tmp.t_werasc;
+	tty->termios.c_cc[VLNEXT] = tmp.t_lnextc;
 	mutex_unlock(&tty->termios_mutex);
 	return 0;
 }
@@ -920,12 +920,12 @@ static int tty_change_softcar(struct tty_struct *tty, int arg)
 	struct ktermios old;
 
 	mutex_lock(&tty->termios_mutex);
-	old = *tty->termios;
-	tty->termios->c_cflag &= ~CLOCAL;
-	tty->termios->c_cflag |= bit;
+	old = tty->termios;
+	tty->termios.c_cflag &= ~CLOCAL;
+	tty->termios.c_cflag |= bit;
 	if (tty->ops->set_termios)
 		tty->ops->set_termios(tty, &old);
-	if ((tty->termios->c_cflag & CLOCAL) != bit)
+	if ((tty->termios.c_cflag & CLOCAL) != bit)
 		ret = -EINVAL;
 	mutex_unlock(&tty->termios_mutex);
 	return ret;
@@ -1031,7 +1031,7 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
 					       (struct termios __user *) arg))
 			return -EFAULT;
 		mutex_lock(&real_tty->termios_mutex);
-		memcpy(real_tty->termios_locked, &kterm, sizeof(struct ktermios));
+		real_tty->termios_locked = kterm;
 		mutex_unlock(&real_tty->termios_mutex);
 		return 0;
 #else
@@ -1048,7 +1048,7 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
 					       (struct termios __user *) arg))
 			return -EFAULT;
 		mutex_lock(&real_tty->termios_mutex);
-		memcpy(real_tty->termios_locked, &kterm, sizeof(struct ktermios));
+		real_tty->termios_locked = kterm;
 		mutex_unlock(&real_tty->termios_mutex);
 		return ret;
 #endif
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 6f99c9959f0..0f2a2c5e704 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -413,7 +413,7 @@ EXPORT_SYMBOL_GPL(tty_ldisc_flush);
 static void tty_set_termios_ldisc(struct tty_struct *tty, int num)
 {
 	mutex_lock(&tty->termios_mutex);
-	tty->termios->c_line = num;
+	tty->termios.c_line = num;
 	mutex_unlock(&tty->termios_mutex);
 }
 
@@ -523,9 +523,9 @@ static int tty_ldisc_halt(struct tty_struct *tty)
  */
 static void tty_ldisc_flush_works(struct tty_struct *tty)
 {
-	flush_work_sync(&tty->hangup_work);
-	flush_work_sync(&tty->SAK_work);
-	flush_work_sync(&tty->buf.work);
+	flush_work(&tty->hangup_work);
+	flush_work(&tty->SAK_work);
+	flush_work(&tty->buf.work);
 }
 
 /**
@@ -568,7 +568,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 	if (IS_ERR(new_ldisc))
 		return PTR_ERR(new_ldisc);
 
-	tty_lock();
+	tty_lock(tty);
 	/*
 	 *	We need to look at the tty locking here for pty/tty pairs
 	 *	when both sides try to change in parallel.
@@ -582,12 +582,12 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 	 */
 
 	if (tty->ldisc->ops->num == ldisc) {
-		tty_unlock();
+		tty_unlock(tty);
 		tty_ldisc_put(new_ldisc);
 		return 0;
 	}
 
-	tty_unlock();
+	tty_unlock(tty);
 	/*
 	 *	Problem: What do we do if this blocks ?
 	 *	We could deadlock here
@@ -595,7 +595,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 
 	tty_wait_until_sent(tty, 0);
 
-	tty_lock();
+	tty_lock(tty);
 	mutex_lock(&tty->ldisc_mutex);
 
 	/*
@@ -605,10 +605,10 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 
 	while (test_bit(TTY_LDISC_CHANGING, &tty->flags)) {
 		mutex_unlock(&tty->ldisc_mutex);
-		tty_unlock();
+		tty_unlock(tty);
 		wait_event(tty_ldisc_wait,
 			test_bit(TTY_LDISC_CHANGING, &tty->flags) == 0);
-		tty_lock();
+		tty_lock(tty);
 		mutex_lock(&tty->ldisc_mutex);
 	}
 
@@ -623,7 +623,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 
 	o_ldisc = tty->ldisc;
 
-	tty_unlock();
+	tty_unlock(tty);
 	/*
 	 *	Make sure we don't change while someone holds a
 	 *	reference to the line discipline. The TTY_LDISC bit
@@ -650,7 +650,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 
 	retval = tty_ldisc_wait_idle(tty, 5 * HZ);
 
-	tty_lock();
+	tty_lock(tty);
 	mutex_lock(&tty->ldisc_mutex);
 
 	/* handle wait idle failure locked */
@@ -665,7 +665,7 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 		clear_bit(TTY_LDISC_CHANGING, &tty->flags);
 		mutex_unlock(&tty->ldisc_mutex);
 		tty_ldisc_put(new_ldisc);
-		tty_unlock();
+		tty_unlock(tty);
 		return -EIO;
 	}
 
@@ -708,7 +708,7 @@ enable:
 	if (o_work)
 		schedule_work(&o_tty->buf.work);
 	mutex_unlock(&tty->ldisc_mutex);
-	tty_unlock();
+	tty_unlock(tty);
 	return retval;
 }
 
@@ -722,9 +722,9 @@ enable:
 static void tty_reset_termios(struct tty_struct *tty)
 {
 	mutex_lock(&tty->termios_mutex);
-	*tty->termios = tty->driver->init_termios;
-	tty->termios->c_ispeed = tty_termios_input_baud_rate(tty->termios);
-	tty->termios->c_ospeed = tty_termios_baud_rate(tty->termios);
+	tty->termios = tty->driver->init_termios;
+	tty->termios.c_ispeed = tty_termios_input_baud_rate(&tty->termios);
+	tty->termios.c_ospeed = tty_termios_baud_rate(&tty->termios);
 	mutex_unlock(&tty->termios_mutex);
 }
 
@@ -816,11 +816,11 @@ void tty_ldisc_hangup(struct tty_struct *tty)
 	 * need to wait for another function taking the BTM
 	 */
 	clear_bit(TTY_LDISC, &tty->flags);
-	tty_unlock();
+	tty_unlock(tty);
 	cancel_work_sync(&tty->buf.work);
 	mutex_unlock(&tty->ldisc_mutex);
 retry:
-	tty_lock();
+	tty_lock(tty);
 	mutex_lock(&tty->ldisc_mutex);
 
 	/* At this point we have a closed ldisc and we want to
@@ -831,7 +831,7 @@ retry:
 		if (atomic_read(&tty->ldisc->users) != 1) {
 			char cur_n[TASK_COMM_LEN], tty_n[64];
 			long timeout = 3 * HZ;
-			tty_unlock();
+			tty_unlock(tty);
 
 			while (tty_ldisc_wait_idle(tty, timeout) == -EBUSY) {
 				timeout = MAX_SCHEDULE_TIMEOUT;
@@ -846,7 +846,7 @@ retry:
 
 		if (reset == 0) {
 
-			if (!tty_ldisc_reinit(tty, tty->termios->c_line))
+			if (!tty_ldisc_reinit(tty, tty->termios.c_line))
 				err = tty_ldisc_open(tty, tty->ldisc);
 			else
 				err = 1;
@@ -894,6 +894,23 @@ int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty)
 	tty_ldisc_enable(tty);
 	return 0;
 }
+
+static void tty_ldisc_kill(struct tty_struct *tty)
+{
+	mutex_lock(&tty->ldisc_mutex);
+	/*
+	 * Now kill off the ldisc
+	 */
+	tty_ldisc_close(tty, tty->ldisc);
+	tty_ldisc_put(tty->ldisc);
+	/* Force an oops if we mess this up */
+	tty->ldisc = NULL;
+
+	/* Ensure the next open requests the N_TTY ldisc */
+	tty_set_termios_ldisc(tty, N_TTY);
+	mutex_unlock(&tty->ldisc_mutex);
+}
+
 /**
  *	tty_ldisc_release		-	release line discipline
  *	@tty: tty being shut down
@@ -912,28 +929,21 @@ void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty)
 	 * race with the set_ldisc code path.
 	 */
 
-	tty_unlock();
+	tty_lock_pair(tty, o_tty);
 	tty_ldisc_halt(tty);
 	tty_ldisc_flush_works(tty);
-	tty_lock();
-
-	mutex_lock(&tty->ldisc_mutex);
-	/*
-	 * Now kill off the ldisc
-	 */
-	tty_ldisc_close(tty, tty->ldisc);
-	tty_ldisc_put(tty->ldisc);
-	/* Force an oops if we mess this up */
-	tty->ldisc = NULL;
-
-	/* Ensure the next open requests the N_TTY ldisc */
-	tty_set_termios_ldisc(tty, N_TTY);
-	mutex_unlock(&tty->ldisc_mutex);
+	if (o_tty) {
+		tty_ldisc_halt(o_tty);
+		tty_ldisc_flush_works(o_tty);
+	}
 
 	/* This will need doing differently if we need to lock */
+	tty_ldisc_kill(tty);
+
 	if (o_tty)
-		tty_ldisc_release(o_tty, NULL);
+		tty_ldisc_kill(o_tty);
 
+	tty_unlock_pair(tty, o_tty);
 	/* And the memory resources remaining (buffers, termios) will be
 	   disposed of when the kref hits zero */
 }
diff --git a/drivers/tty/tty_mutex.c b/drivers/tty/tty_mutex.c
index 9ff986c32a2..67feac9e6eb 100644
--- a/drivers/tty/tty_mutex.c
+++ b/drivers/tty/tty_mutex.c
@@ -4,29 +4,70 @@
 #include <linux/semaphore.h>
 #include <linux/sched.h>
 
-/*
- * The 'big tty mutex'
- *
- * This mutex is taken and released by tty_lock() and tty_unlock(),
- * replacing the older big kernel lock.
- * It can no longer be taken recursively, and does not get
- * released implicitly while sleeping.
- *
- * Don't use in new code.
- */
-static DEFINE_MUTEX(big_tty_mutex);
+/* Legacy tty mutex glue */
+
+enum {
+	TTY_MUTEX_NORMAL,
+	TTY_MUTEX_NESTED,
+};
 
 /*
  * Getting the big tty mutex.
  */
-void __lockfunc tty_lock(void)
+
+static void __lockfunc tty_lock_nested(struct tty_struct *tty,
+				       unsigned int subclass)
 {
-	mutex_lock(&big_tty_mutex);
+	if (tty->magic != TTY_MAGIC) {
+		printk(KERN_ERR "L Bad %p\n", tty);
+		WARN_ON(1);
+		return;
+	}
+	tty_kref_get(tty);
+	mutex_lock_nested(&tty->legacy_mutex, subclass);
+}
+
+void __lockfunc tty_lock(struct tty_struct *tty)
+{
+	return tty_lock_nested(tty, TTY_MUTEX_NORMAL);
 }
 EXPORT_SYMBOL(tty_lock);
 
-void __lockfunc tty_unlock(void)
+void __lockfunc tty_unlock(struct tty_struct *tty)
 {
-	mutex_unlock(&big_tty_mutex);
+	if (tty->magic != TTY_MAGIC) {
+		printk(KERN_ERR "U Bad %p\n", tty);
+		WARN_ON(1);
+		return;
+	}
+	mutex_unlock(&tty->legacy_mutex);
+	tty_kref_put(tty);
 }
 EXPORT_SYMBOL(tty_unlock);
+
+/*
+ * Getting the big tty mutex for a pair of ttys with lock ordering
+ * On a non pty/tty pair tty2 can be NULL which is just fine.
+ */
+void __lockfunc tty_lock_pair(struct tty_struct *tty,
+					struct tty_struct *tty2)
+{
+	if (tty < tty2) {
+		tty_lock(tty);
+		tty_lock_nested(tty2, TTY_MUTEX_NESTED);
+	} else {
+		if (tty2 && tty2 != tty)
+			tty_lock(tty2);
+		tty_lock_nested(tty, TTY_MUTEX_NESTED);
+	}
+}
+EXPORT_SYMBOL(tty_lock_pair);
+
+void __lockfunc tty_unlock_pair(struct tty_struct *tty,
+						struct tty_struct *tty2)
+{
+	tty_unlock(tty);
+	if (tty2 && tty2 != tty)
+		tty_unlock(tty2);
+}
+EXPORT_SYMBOL(tty_unlock_pair);
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index bf6e238146a..d7bdd8d0c23 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -33,6 +33,70 @@ void tty_port_init(struct tty_port *port)
 }
 EXPORT_SYMBOL(tty_port_init);
 
+/**
+ * tty_port_link_device - link tty and tty_port
+ * @port: tty_port of the device
+ * @driver: tty_driver for this device
+ * @index: index of the tty
+ *
+ * Provide the tty layer wit ha link from a tty (specified by @index) to a
+ * tty_port (@port). Use this only if neither tty_port_register_device nor
+ * tty_port_install is used in the driver. If used, this has to be called before
+ * tty_register_driver.
+ */
+void tty_port_link_device(struct tty_port *port,
+		struct tty_driver *driver, unsigned index)
+{
+	if (WARN_ON(index >= driver->num))
+		return;
+	driver->ports[index] = port;
+}
+EXPORT_SYMBOL_GPL(tty_port_link_device);
+
+/**
+ * tty_port_register_device - register tty device
+ * @port: tty_port of the device
+ * @driver: tty_driver for this device
+ * @index: index of the tty
+ * @device: parent if exists, otherwise NULL
+ *
+ * It is the same as tty_register_device except the provided @port is linked to
+ * a concrete tty specified by @index. Use this or tty_port_install (or both).
+ * Call tty_port_link_device as a last resort.
+ */
+struct device *tty_port_register_device(struct tty_port *port,
+		struct tty_driver *driver, unsigned index,
+		struct device *device)
+{
+	tty_port_link_device(port, driver, index);
+	return tty_register_device(driver, index, device);
+}
+EXPORT_SYMBOL_GPL(tty_port_register_device);
+
+/**
+ * tty_port_register_device_attr - register tty device
+ * @port: tty_port of the device
+ * @driver: tty_driver for this device
+ * @index: index of the tty
+ * @device: parent if exists, otherwise NULL
+ * @drvdata: Driver data to be set to device.
+ * @attr_grp: Attribute group to be set on device.
+ *
+ * It is the same as tty_register_device_attr except the provided @port is
+ * linked to a concrete tty specified by @index. Use this or tty_port_install
+ * (or both). Call tty_port_link_device as a last resort.
+ */
+struct device *tty_port_register_device_attr(struct tty_port *port,
+		struct tty_driver *driver, unsigned index,
+		struct device *device, void *drvdata,
+		const struct attribute_group **attr_grp)
+{
+	tty_port_link_device(port, driver, index);
+	return tty_register_device_attr(driver, index, device, drvdata,
+			attr_grp);
+}
+EXPORT_SYMBOL_GPL(tty_port_register_device_attr);
+
 int tty_port_alloc_xmit_buf(struct tty_port *port)
 {
 	/* We may sleep in get_zeroed_page() */
@@ -230,7 +294,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 
 	/* block if port is in the process of being closed */
 	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
-		wait_event_interruptible_tty(port->close_wait,
+		wait_event_interruptible_tty(tty, port->close_wait,
 				!(port->flags & ASYNC_CLOSING));
 		if (port->flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
@@ -246,7 +310,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 	}
 	if (filp->f_flags & O_NONBLOCK) {
 		/* Indicate we are open */
-		if (tty->termios->c_cflag & CBAUD)
+		if (tty->termios.c_cflag & CBAUD)
 			tty_port_raise_dtr_rts(port);
 		port->flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
@@ -270,7 +334,7 @@ int tty_port_block_til_ready(struct tty_port *port,
 
 	while (1) {
 		/* Indicate we are open */
-		if (tty->termios->c_cflag & CBAUD)
+		if (tty->termios.c_cflag & CBAUD)
 			tty_port_raise_dtr_rts(port);
 
 		prepare_to_wait(&port->open_wait, &wait, TASK_INTERRUPTIBLE);
@@ -296,9 +360,9 @@ int tty_port_block_til_ready(struct tty_port *port,
 			retval = -ERESTARTSYS;
 			break;
 		}
-		tty_unlock();
+		tty_unlock(tty);
 		schedule();
-		tty_lock();
+		tty_lock(tty);
 	}
 	finish_wait(&port->open_wait, &wait);
 
@@ -369,7 +433,7 @@ int tty_port_close_start(struct tty_port *port,
 
 	/* Drop DTR/RTS if HUPCL is set. This causes any attached modem to
 	   hang up the line */
-	if (tty->termios->c_cflag & HUPCL)
+	if (tty->termios.c_cflag & HUPCL)
 		tty_port_lower_dtr_rts(port);
 
 	/* Don't call port->drop for the last reference. Callers will want
@@ -413,6 +477,24 @@ void tty_port_close(struct tty_port *port, struct tty_struct *tty,
 }
 EXPORT_SYMBOL(tty_port_close);
 
+/**
+ * tty_port_install - generic tty->ops->install handler
+ * @port: tty_port of the device
+ * @driver: tty_driver for this device
+ * @tty: tty to be installed
+ *
+ * It is the same as tty_standard_install except the provided @port is linked
+ * to a concrete tty specified by @tty. Use this or tty_port_register_device
+ * (or both). Call tty_port_link_device as a last resort.
+ */
+int tty_port_install(struct tty_port *port, struct tty_driver *driver,
+		struct tty_struct *tty)
+{
+	tty->port = port;
+	return tty_standard_install(driver, tty);
+}
+EXPORT_SYMBOL_GPL(tty_port_install);
+
 int tty_port_open(struct tty_port *port, struct tty_struct *tty,
 							struct file *filp)
 {
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 48cc6f25cfd..681765baef6 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -119,6 +119,7 @@ static const int NR_TYPES = ARRAY_SIZE(max_vals);
 
 static struct input_handler kbd_handler;
 static DEFINE_SPINLOCK(kbd_event_lock);
+static DEFINE_SPINLOCK(led_lock);
 static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)];	/* keyboard key bitmap */
 static unsigned char shift_down[NR_SHIFT];		/* shift state counters.. */
 static bool dead_key_next;
@@ -310,7 +311,7 @@ static void put_queue(struct vc_data *vc, int ch)
 
 	if (tty) {
 		tty_insert_flip_char(tty, ch, 0);
-		con_schedule_flip(tty);
+		tty_schedule_flip(tty);
 	}
 }
 
@@ -325,7 +326,7 @@ static void puts_queue(struct vc_data *vc, char *cp)
 		tty_insert_flip_char(tty, *cp, 0);
 		cp++;
 	}
-	con_schedule_flip(tty);
+	tty_schedule_flip(tty);
 }
 
 static void applkey(struct vc_data *vc, int key, char mode)
@@ -586,7 +587,7 @@ static void fn_send_intr(struct vc_data *vc)
 	if (!tty)
 		return;
 	tty_insert_flip_char(tty, 0, TTY_BREAK);
-	con_schedule_flip(tty);
+	tty_schedule_flip(tty);
 }
 
 static void fn_scroll_forw(struct vc_data *vc)
@@ -984,7 +985,7 @@ static void k_brl(struct vc_data *vc, unsigned char value, char up_flag)
  * or (ii) whatever pattern of lights people want to show using KDSETLED,
  * or (iii) specified bits of specified words in kernel memory.
  */
-unsigned char getledstate(void)
+static unsigned char getledstate(void)
 {
 	return ledstate;
 }
@@ -992,7 +993,7 @@ unsigned char getledstate(void)
 void setledstate(struct kbd_struct *kbd, unsigned int led)
 {
         unsigned long flags;
-        spin_lock_irqsave(&kbd_event_lock, flags);
+        spin_lock_irqsave(&led_lock, flags);
 	if (!(led & ~7)) {
 		ledioctl = led;
 		kbd->ledmode = LED_SHOW_IOCTL;
@@ -1000,7 +1001,7 @@ void setledstate(struct kbd_struct *kbd, unsigned int led)
 		kbd->ledmode = LED_SHOW_FLAGS;
 
 	set_leds();
-	spin_unlock_irqrestore(&kbd_event_lock, flags);
+	spin_unlock_irqrestore(&led_lock, flags);
 }
 
 static inline unsigned char getleds(void)
@@ -1049,13 +1050,13 @@ static int kbd_update_leds_helper(struct input_handle *handle, void *data)
  */
 int vt_get_leds(int console, int flag)
 {
-	unsigned long flags;
 	struct kbd_struct * kbd = kbd_table + console;
 	int ret;
+	unsigned long flags;
 
-	spin_lock_irqsave(&kbd_event_lock, flags);
+	spin_lock_irqsave(&led_lock, flags);
 	ret = vc_kbd_led(kbd, flag);
-	spin_unlock_irqrestore(&kbd_event_lock, flags);
+	spin_unlock_irqrestore(&led_lock, flags);
 
 	return ret;
 }
@@ -1091,11 +1092,11 @@ void vt_set_led_state(int console, int leds)
 void vt_kbd_con_start(int console)
 {
 	struct kbd_struct * kbd = kbd_table + console;
-/*	unsigned long flags; */
-/*	spin_lock_irqsave(&kbd_event_lock, flags); */
+	unsigned long flags;
+	spin_lock_irqsave(&led_lock, flags);
 	clr_vc_kbd_led(kbd, VC_SCROLLOCK);
 	set_leds();
-/*	spin_unlock_irqrestore(&kbd_event_lock, flags); */
+	spin_unlock_irqrestore(&led_lock, flags);
 }
 
 /**
@@ -1104,21 +1105,15 @@ void vt_kbd_con_start(int console)
  *
  *	Handle console stop. This is a wrapper for the VT layer
  *	so that we can keep kbd knowledge internal
- *
- *	FIXME: We eventually need to hold the kbd lock here to protect
- *	the LED updating. We can't do it yet because fn_hold calls stop_tty
- *	and start_tty under the kbd_event_lock, while normal tty paths
- *	don't hold the lock. We probably need to split out an LED lock
- *	but not during an -rc release!
  */
 void vt_kbd_con_stop(int console)
 {
 	struct kbd_struct * kbd = kbd_table + console;
-/*	unsigned long flags; */
-/*	spin_lock_irqsave(&kbd_event_lock, flags); */
+	unsigned long flags;
+	spin_lock_irqsave(&led_lock, flags);
 	set_vc_kbd_led(kbd, VC_SCROLLOCK);
 	set_leds();
-/*	spin_unlock_irqrestore(&kbd_event_lock, flags); */
+	spin_unlock_irqrestore(&led_lock, flags);
 }
 
 /*
@@ -1130,7 +1125,12 @@ void vt_kbd_con_stop(int console)
  */
 static void kbd_bh(unsigned long dummy)
 {
-	unsigned char leds = getleds();
+	unsigned char leds;
+	unsigned long flags;
+	
+	spin_lock_irqsave(&led_lock, flags);
+	leds = getleds();
+	spin_unlock_irqrestore(&led_lock, flags);
 
 	if (leds != ledstate) {
 		input_handler_for_each_handle(&kbd_handler, &leds,
@@ -2035,11 +2035,11 @@ int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm)
 			return -EPERM;
 		if (arg & ~0x77)
 			return -EINVAL;
-                spin_lock_irqsave(&kbd_event_lock, flags);
+                spin_lock_irqsave(&led_lock, flags);
 		kbd->ledflagstate = (arg & 7);
 		kbd->default_ledflagstate = ((arg >> 4) & 7);
 		set_leds();
-                spin_unlock_irqrestore(&kbd_event_lock, flags);
+                spin_unlock_irqrestore(&led_lock, flags);
 		return 0;
 
 	/* the ioctls below only set the lights, not the functions */
@@ -2134,8 +2134,10 @@ void vt_reset_keyboard(int console)
 	clr_vc_kbd_mode(kbd, VC_CRLF);
 	kbd->lockstate = 0;
 	kbd->slockstate = 0;
+	spin_lock(&led_lock);
 	kbd->ledmode = LED_SHOW_FLAGS;
 	kbd->ledflagstate = kbd->default_ledflagstate;
+	spin_unlock(&led_lock);
 	/* do not do set_leds here because this causes an endless tasklet loop
 	   when the keyboard hasn't been initialized yet */
 	spin_unlock_irqrestore(&kbd_event_lock, flags);
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 84cbf298c09..999ca63afde 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -537,45 +537,27 @@ void complement_pos(struct vc_data *vc, int offset)
 
 static void insert_char(struct vc_data *vc, unsigned int nr)
 {
-	unsigned short *p, *q = (unsigned short *)vc->vc_pos;
+	unsigned short *p = (unsigned short *) vc->vc_pos;
 
-	p = q + vc->vc_cols - nr - vc->vc_x;
-	while (--p >= q)
-		scr_writew(scr_readw(p), p + nr);
-	scr_memsetw(q, vc->vc_video_erase_char, nr * 2);
+	scr_memmovew(p + nr, p, vc->vc_cols - vc->vc_x);
+	scr_memsetw(p, vc->vc_video_erase_char, nr * 2);
 	vc->vc_need_wrap = 0;
-	if (DO_UPDATE(vc)) {
-		unsigned short oldattr = vc->vc_attr;
-		vc->vc_sw->con_bmove(vc, vc->vc_y, vc->vc_x, vc->vc_y, vc->vc_x + nr, 1,
-				     vc->vc_cols - vc->vc_x - nr);
-		vc->vc_attr = vc->vc_video_erase_char >> 8;
-		while (nr--)
-			vc->vc_sw->con_putc(vc, vc->vc_video_erase_char, vc->vc_y, vc->vc_x + nr);
-		vc->vc_attr = oldattr;
-	}
+	if (DO_UPDATE(vc))
+		do_update_region(vc, (unsigned long) p,
+			(vc->vc_cols - vc->vc_x) / 2 + 1);
 }
 
 static void delete_char(struct vc_data *vc, unsigned int nr)
 {
-	unsigned int i = vc->vc_x;
-	unsigned short *p = (unsigned short *)vc->vc_pos;
+	unsigned short *p = (unsigned short *) vc->vc_pos;
 
-	while (++i <= vc->vc_cols - nr) {
-		scr_writew(scr_readw(p+nr), p);
-		p++;
-	}
-	scr_memsetw(p, vc->vc_video_erase_char, nr * 2);
+	scr_memcpyw(p, p + nr, vc->vc_cols - vc->vc_x - nr);
+	scr_memsetw(p + vc->vc_cols - vc->vc_x - nr, vc->vc_video_erase_char,
+			nr * 2);
 	vc->vc_need_wrap = 0;
-	if (DO_UPDATE(vc)) {
-		unsigned short oldattr = vc->vc_attr;
-		vc->vc_sw->con_bmove(vc, vc->vc_y, vc->vc_x + nr, vc->vc_y, vc->vc_x, 1,
-				     vc->vc_cols - vc->vc_x - nr);
-		vc->vc_attr = vc->vc_video_erase_char >> 8;
-		while (nr--)
-			vc->vc_sw->con_putc(vc, vc->vc_video_erase_char, vc->vc_y,
-				     vc->vc_cols - 1 - nr);
-		vc->vc_attr = oldattr;
-	}
+	if (DO_UPDATE(vc))
+		do_update_region(vc, (unsigned long) p,
+			(vc->vc_cols - vc->vc_x) / 2);
 }
 
 static int softcursor_original;
@@ -1172,45 +1154,26 @@ static void csi_J(struct vc_data *vc, int vpar)
 		case 0:	/* erase from cursor to end of display */
 			count = (vc->vc_scr_end - vc->vc_pos) >> 1;
 			start = (unsigned short *)vc->vc_pos;
-			if (DO_UPDATE(vc)) {
-				/* do in two stages */
-				vc->vc_sw->con_clear(vc, vc->vc_y, vc->vc_x, 1,
-					      vc->vc_cols - vc->vc_x);
-				vc->vc_sw->con_clear(vc, vc->vc_y + 1, 0,
-					      vc->vc_rows - vc->vc_y - 1,
-					      vc->vc_cols);
-			}
 			break;
 		case 1:	/* erase from start to cursor */
 			count = ((vc->vc_pos - vc->vc_origin) >> 1) + 1;
 			start = (unsigned short *)vc->vc_origin;
-			if (DO_UPDATE(vc)) {
-				/* do in two stages */
-				vc->vc_sw->con_clear(vc, 0, 0, vc->vc_y,
-					      vc->vc_cols);
-				vc->vc_sw->con_clear(vc, vc->vc_y, 0, 1,
-					      vc->vc_x + 1);
-			}
 			break;
 		case 3: /* erase scroll-back buffer (and whole display) */
 			scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char,
 				    vc->vc_screenbuf_size >> 1);
 			set_origin(vc);
-			if (CON_IS_VISIBLE(vc))
-				update_screen(vc);
 			/* fall through */
 		case 2: /* erase whole display */
 			count = vc->vc_cols * vc->vc_rows;
 			start = (unsigned short *)vc->vc_origin;
-			if (DO_UPDATE(vc))
-				vc->vc_sw->con_clear(vc, 0, 0,
-					      vc->vc_rows,
-					      vc->vc_cols);
 			break;
 		default:
 			return;
 	}
 	scr_memsetw(start, vc->vc_video_erase_char, 2 * count);
+	if (DO_UPDATE(vc))
+		do_update_region(vc, (unsigned long) start, count);
 	vc->vc_need_wrap = 0;
 }
 
@@ -1223,29 +1186,22 @@ static void csi_K(struct vc_data *vc, int vpar)
 		case 0:	/* erase from cursor to end of line */
 			count = vc->vc_cols - vc->vc_x;
 			start = (unsigned short *)vc->vc_pos;
-			if (DO_UPDATE(vc))
-				vc->vc_sw->con_clear(vc, vc->vc_y, vc->vc_x, 1,
-						     vc->vc_cols - vc->vc_x);
 			break;
 		case 1:	/* erase from start of line to cursor */
 			start = (unsigned short *)(vc->vc_pos - (vc->vc_x << 1));
 			count = vc->vc_x + 1;
-			if (DO_UPDATE(vc))
-				vc->vc_sw->con_clear(vc, vc->vc_y, 0, 1,
-						     vc->vc_x + 1);
 			break;
 		case 2: /* erase whole line */
 			start = (unsigned short *)(vc->vc_pos - (vc->vc_x << 1));
 			count = vc->vc_cols;
-			if (DO_UPDATE(vc))
-				vc->vc_sw->con_clear(vc, vc->vc_y, 0, 1,
-					      vc->vc_cols);
 			break;
 		default:
 			return;
 	}
 	scr_memsetw(start, vc->vc_video_erase_char, 2 * count);
 	vc->vc_need_wrap = 0;
+	if (DO_UPDATE(vc))
+		do_update_region(vc, (unsigned long) start, count);
 }
 
 static void csi_X(struct vc_data *vc, int vpar) /* erase the following vpar positions */
@@ -1380,7 +1336,7 @@ static void respond_string(const char *p, struct tty_struct *tty)
 		tty_insert_flip_char(tty, *p, 0);
 		p++;
 	}
-	con_schedule_flip(tty);
+	tty_schedule_flip(tty);
 }
 
 static void cursor_report(struct vc_data *vc, struct tty_struct *tty)
@@ -2792,41 +2748,52 @@ static void con_flush_chars(struct tty_struct *tty)
 /*
  * Allocate the console screen memory.
  */
-static int con_open(struct tty_struct *tty, struct file *filp)
+static int con_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	unsigned int currcons = tty->index;
-	int ret = 0;
+	struct vc_data *vc;
+	int ret;
 
 	console_lock();
-	if (tty->driver_data == NULL) {
-		ret = vc_allocate(currcons);
-		if (ret == 0) {
-			struct vc_data *vc = vc_cons[currcons].d;
+	ret = vc_allocate(currcons);
+	if (ret)
+		goto unlock;
 
-			/* Still being freed */
-			if (vc->port.tty) {
-				console_unlock();
-				return -ERESTARTSYS;
-			}
-			tty->driver_data = vc;
-			vc->port.tty = tty;
+	vc = vc_cons[currcons].d;
 
-			if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
-				tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
-				tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
-			}
-			if (vc->vc_utf)
-				tty->termios->c_iflag |= IUTF8;
-			else
-				tty->termios->c_iflag &= ~IUTF8;
-			console_unlock();
-			return ret;
-		}
+	/* Still being freed */
+	if (vc->port.tty) {
+		ret = -ERESTARTSYS;
+		goto unlock;
 	}
+
+	ret = tty_port_install(&vc->port, driver, tty);
+	if (ret)
+		goto unlock;
+
+	tty->driver_data = vc;
+	vc->port.tty = tty;
+
+	if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
+		tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
+		tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
+	}
+	if (vc->vc_utf)
+		tty->termios.c_iflag |= IUTF8;
+	else
+		tty->termios.c_iflag &= ~IUTF8;
+unlock:
 	console_unlock();
 	return ret;
 }
 
+static int con_open(struct tty_struct *tty, struct file *filp)
+{
+	/* everything done in install */
+	return 0;
+}
+
+
 static void con_close(struct tty_struct *tty, struct file *filp)
 {
 	/* Nothing to do - we defer to shutdown */
@@ -2839,7 +2806,6 @@ static void con_shutdown(struct tty_struct *tty)
 	console_lock();
 	vc->port.tty = NULL;
 	console_unlock();
-	tty_shutdown(tty);
 }
 
 static int default_italic_color    = 2; // green (ASCII)
@@ -2947,6 +2913,7 @@ static int __init con_init(void)
 console_initcall(con_init);
 
 static const struct tty_operations con_ops = {
+	.install = con_install,
 	.open = con_open,
 	.close = con_close,
 	.write = con_write,
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index a7773a3e02b..4c90b510d01 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -13,7 +13,6 @@ config USB_ARCH_HAS_OHCI
 	default y if PXA3xx
 	default y if ARCH_EP93XX
 	default y if ARCH_AT91
-	default y if ARCH_PNX4008 && I2C
 	default y if MFD_TC6393XB
 	default y if ARCH_W90X900
 	default y if ARCH_DAVINCI_DA8XX
@@ -48,6 +47,7 @@ config USB_ARCH_HAS_EHCI
 	default y if SPARC_LEON
 	default y if ARCH_MMP
 	default y if MACH_LOONGSON1
+	default y if PLAT_ORION
 	default PCI
 
 # some non-PCI HCDs implement xHCI
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c
index 975e9c6691d..807627b36cc 100644
--- a/drivers/usb/atm/speedtch.c
+++ b/drivers/usb/atm/speedtch.c
@@ -718,7 +718,7 @@ static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_de
 	del_timer_sync(&instance->resubmit_timer);
 	usb_free_urb(int_urb);
 
-	flush_work_sync(&instance->status_check_work);
+	flush_work(&instance->status_check_work);
 }
 
 static int speedtch_pre_reset(struct usb_interface *intf)
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index d7e422dc0ef..defff43950b 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -307,6 +307,34 @@ enum {
 #define FW_GET_BYTE(p) (*((__u8 *) (p)))
 
 #define FW_DIR "ueagle-atm/"
+#define EAGLE_FIRMWARE FW_DIR "eagle.fw"
+#define ADI930_FIRMWARE FW_DIR "adi930.fw"
+#define EAGLE_I_FIRMWARE FW_DIR "eagleI.fw"
+#define EAGLE_II_FIRMWARE FW_DIR "eagleII.fw"
+#define EAGLE_III_FIRMWARE FW_DIR "eagleIII.fw"
+#define EAGLE_IV_FIRMWARE FW_DIR "eagleIV.fw"
+
+#define DSP4I_FIRMWARE FW_DIR "DSP4i.bin"
+#define DSP4P_FIRMWARE FW_DIR "DSP4p.bin"
+#define DSP9I_FIRMWARE FW_DIR "DSP9i.bin"
+#define DSP9P_FIRMWARE FW_DIR "DSP9p.bin"
+#define DSPEI_FIRMWARE FW_DIR "DSPei.bin"
+#define DSPEP_FIRMWARE FW_DIR "DSPep.bin"
+#define FPGA930_FIRMWARE FW_DIR "930-fpga.bin"
+
+#define CMV4P_FIRMWARE FW_DIR "CMV4p.bin"
+#define CMV4PV2_FIRMWARE FW_DIR "CMV4p.bin.v2"
+#define CMV4I_FIRMWARE FW_DIR "CMV4i.bin"
+#define CMV4IV2_FIRMWARE FW_DIR "CMV4i.bin.v2"
+#define CMV9P_FIRMWARE FW_DIR "CMV9p.bin"
+#define CMV9PV2_FIRMWARE FW_DIR "CMV9p.bin.v2"
+#define CMV9I_FIRMWARE FW_DIR "CMV9i.bin"
+#define CMV9IV2_FIRMWARE FW_DIR "CMV9i.bin.v2"
+#define CMVEP_FIRMWARE FW_DIR "CMVep.bin"
+#define CMVEPV2_FIRMWARE FW_DIR "CMVep.bin.v2"
+#define CMVEI_FIRMWARE FW_DIR "CMVei.bin"
+#define CMVEIV2_FIRMWARE FW_DIR "CMVei.bin.v2"
+
 #define UEA_FW_NAME_MAX 30
 #define NB_MODEM 4
 
@@ -694,26 +722,26 @@ err:
 static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
 {
 	int ret;
-	char *fw_name = FW_DIR "eagle.fw";
+	char *fw_name = EAGLE_FIRMWARE;
 
 	uea_enters(usb);
 	uea_info(usb, "pre-firmware device, uploading firmware\n");
 
 	switch (ver) {
 	case ADI930:
-		fw_name = FW_DIR "adi930.fw";
+		fw_name = ADI930_FIRMWARE;
 		break;
 	case EAGLE_I:
-		fw_name = FW_DIR "eagleI.fw";
+		fw_name = EAGLE_I_FIRMWARE;
 		break;
 	case EAGLE_II:
-		fw_name = FW_DIR "eagleII.fw";
+		fw_name = EAGLE_II_FIRMWARE;
 		break;
 	case EAGLE_III:
-		fw_name = FW_DIR "eagleIII.fw";
+		fw_name = EAGLE_III_FIRMWARE;
 		break;
 	case EAGLE_IV:
-		fw_name = FW_DIR "eagleIV.fw";
+		fw_name = EAGLE_IV_FIRMWARE;
 		break;
 	}
 
@@ -869,19 +897,19 @@ static int request_dsp(struct uea_softc *sc)
 
 	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
 		if (IS_ISDN(sc))
-			dsp_name = FW_DIR "DSP4i.bin";
+			dsp_name = DSP4I_FIRMWARE;
 		else
-			dsp_name = FW_DIR "DSP4p.bin";
+			dsp_name = DSP4P_FIRMWARE;
 	} else if (UEA_CHIP_VERSION(sc) == ADI930) {
 		if (IS_ISDN(sc))
-			dsp_name = FW_DIR "DSP9i.bin";
+			dsp_name = DSP9I_FIRMWARE;
 		else
-			dsp_name = FW_DIR "DSP9p.bin";
+			dsp_name = DSP9P_FIRMWARE;
 	} else {
 		if (IS_ISDN(sc))
-			dsp_name = FW_DIR "DSPei.bin";
+			dsp_name = DSPEI_FIRMWARE;
 		else
-			dsp_name = FW_DIR "DSPep.bin";
+			dsp_name = DSPEP_FIRMWARE;
 	}
 
 	ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
@@ -1925,7 +1953,7 @@ static int load_XILINX_firmware(struct uea_softc *sc)
 	int ret, size, u, ln;
 	const u8 *pfw;
 	u8 value;
-	char *fw_name = FW_DIR "930-fpga.bin";
+	char *fw_name = FPGA930_FIRMWARE;
 
 	uea_enters(INS_TO_USBDEV(sc));
 
@@ -2234,7 +2262,7 @@ static void uea_stop(struct uea_softc *sc)
 	usb_free_urb(sc->urb_int);
 
 	/* flush the work item, when no one can schedule it */
-	flush_work_sync(&sc->task);
+	flush_work(&sc->task);
 
 	release_firmware(sc->dsp_firm);
 	uea_leaves(INS_TO_USBDEV(sc));
@@ -2753,3 +2781,28 @@ module_usb_driver(uea_driver);
 MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
 MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
 MODULE_LICENSE("Dual BSD/GPL");
+MODULE_FIRMWARE(EAGLE_FIRMWARE);
+MODULE_FIRMWARE(ADI930_FIRMWARE);
+MODULE_FIRMWARE(EAGLE_I_FIRMWARE);
+MODULE_FIRMWARE(EAGLE_II_FIRMWARE);
+MODULE_FIRMWARE(EAGLE_III_FIRMWARE);
+MODULE_FIRMWARE(EAGLE_IV_FIRMWARE);
+MODULE_FIRMWARE(DSP4I_FIRMWARE);
+MODULE_FIRMWARE(DSP4P_FIRMWARE);
+MODULE_FIRMWARE(DSP9I_FIRMWARE);
+MODULE_FIRMWARE(DSP9P_FIRMWARE);
+MODULE_FIRMWARE(DSPEI_FIRMWARE);
+MODULE_FIRMWARE(DSPEP_FIRMWARE);
+MODULE_FIRMWARE(FPGA930_FIRMWARE);
+MODULE_FIRMWARE(CMV4P_FIRMWARE);
+MODULE_FIRMWARE(CMV4PV2_FIRMWARE);
+MODULE_FIRMWARE(CMV4I_FIRMWARE);
+MODULE_FIRMWARE(CMV4IV2_FIRMWARE);
+MODULE_FIRMWARE(CMV9P_FIRMWARE);
+MODULE_FIRMWARE(CMV9PV2_FIRMWARE);
+MODULE_FIRMWARE(CMV9I_FIRMWARE);
+MODULE_FIRMWARE(CMV9IV2_FIRMWARE);
+MODULE_FIRMWARE(CMVEP_FIRMWARE);
+MODULE_FIRMWARE(CMVEPV2_FIRMWARE);
+MODULE_FIRMWARE(CMVEI_FIRMWARE);
+MODULE_FIRMWARE(CMVEIV2_FIRMWARE);
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index ee62b3576f9..35f10bfe15d 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -84,7 +84,7 @@
 #include <linux/ratelimit.h>
 
 #ifdef VERBOSE_DEBUG
-static int usbatm_print_packet(const unsigned char *data, int len);
+static int usbatm_print_packet(struct usbatm_data *instance, const unsigned char *data, int len);
 #define PACKETDEBUG(arg...)	usbatm_print_packet(arg)
 #define vdbg(arg...)		dev_dbg(arg)
 #else
@@ -230,8 +230,8 @@ static int usbatm_submit_urb(struct urb *urb)
 	struct usbatm_channel *channel = urb->context;
 	int ret;
 
-	vdbg("%s: submitting urb 0x%p, size %u",
-	     __func__, urb, urb->transfer_buffer_length);
+	/* vdbg("%s: submitting urb 0x%p, size %u",
+	     __func__, urb, urb->transfer_buffer_length); */
 
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 	if (ret) {
@@ -261,8 +261,8 @@ static void usbatm_complete(struct urb *urb)
 	unsigned long flags;
 	int status = urb->status;
 
-	vdbg("%s: urb 0x%p, status %d, actual_length %d",
-	     __func__, urb, status, urb->actual_length);
+	/* vdbg("%s: urb 0x%p, status %d, actual_length %d",
+	     __func__, urb, status, urb->actual_length); */
 
 	/* usually in_interrupt(), but not always */
 	spin_lock_irqsave(&channel->lock, flags);
@@ -311,7 +311,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 	int vci = ((source[1] & 0x0f) << 12) | (source[2] << 4) | (source[3] >> 4);
 	u8 pti = ((source[3] & 0xe) >> 1);
 
-	vdbg("%s: vpi %hd, vci %d, pti %d", __func__, vpi, vci, pti);
+	vdbg(&instance->usb_intf->dev, "%s: vpi %hd, vci %d, pti %d", __func__, vpi, vci, pti);
 
 	if ((vci != instance->cached_vci) || (vpi != instance->cached_vpi)) {
 		instance->cached_vpi = vpi;
@@ -381,7 +381,9 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 			goto out;
 		}
 
-		vdbg("%s: got packet (length: %u, pdu_length: %u, vcc: 0x%p)", __func__, length, pdu_length, vcc);
+		vdbg(&instance->usb_intf->dev,
+		     "%s: got packet (length: %u, pdu_length: %u, vcc: 0x%p)",
+		     __func__, length, pdu_length, vcc);
 
 		if (!(skb = dev_alloc_skb(length))) {
 			if (printk_ratelimit())
@@ -391,7 +393,9 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 			goto out;
 		}
 
-		vdbg("%s: allocated new sk_buff (skb: 0x%p, skb->truesize: %u)", __func__, skb, skb->truesize);
+		vdbg(&instance->usb_intf->dev,
+		     "%s: allocated new sk_buff (skb: 0x%p, skb->truesize: %u)",
+		     __func__, skb, skb->truesize);
 
 		if (!atm_charge(vcc, skb->truesize)) {
 			atm_rldbg(instance, "%s: failed atm_charge (skb->truesize: %u)!\n",
@@ -405,10 +409,11 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
 					length);
 		__skb_put(skb, length);
 
-		vdbg("%s: sending skb 0x%p, skb->len %u, skb->truesize %u",
+		vdbg(&instance->usb_intf->dev,
+		     "%s: sending skb 0x%p, skb->len %u, skb->truesize %u",
 		     __func__, skb, skb->len, skb->truesize);
 
-		PACKETDEBUG(skb->data, skb->len);
+		PACKETDEBUG(instance, skb->data, skb->len);
 
 		vcc->push(vcc, skb);
 
@@ -474,7 +479,8 @@ static unsigned int usbatm_write_cells(struct usbatm_data *instance,
 	unsigned int bytes_written;
 	unsigned int stride = instance->tx_channel.stride;
 
-	vdbg("%s: skb->len=%d, avail_space=%u", __func__, skb->len, avail_space);
+	vdbg(&instance->usb_intf->dev, "%s: skb->len=%d, avail_space=%u",
+	     __func__, skb->len, avail_space);
 	UDSL_ASSERT(instance, !(avail_space % stride));
 
 	for (bytes_written = 0; bytes_written < avail_space && ctrl->len;
@@ -534,7 +540,8 @@ static void usbatm_rx_process(unsigned long data)
 	struct urb *urb;
 
 	while ((urb = usbatm_pop_urb(&instance->rx_channel))) {
-		vdbg("%s: processing urb 0x%p", __func__, urb);
+		vdbg(&instance->usb_intf->dev,
+		     "%s: processing urb 0x%p", __func__, urb);
 
 		if (usb_pipeisoc(urb->pipe)) {
 			unsigned char *merge_start = NULL;
@@ -608,7 +615,8 @@ static void usbatm_tx_process(unsigned long data)
 						  buffer + bytes_written,
 						  buf_size - bytes_written);
 
-		vdbg("%s: wrote %u bytes from skb 0x%p to urb 0x%p",
+		vdbg(&instance->usb_intf->dev,
+		     "%s: wrote %u bytes from skb 0x%p to urb 0x%p",
 		     __func__, bytes_written, skb, urb);
 
 		if (!UDSL_SKB(skb)->len) {
@@ -664,7 +672,8 @@ static int usbatm_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
 	struct usbatm_control *ctrl = UDSL_SKB(skb);
 	int err;
 
-	vdbg("%s called (skb 0x%p, len %u)", __func__, skb, skb->len);
+	vdbg(&instance->usb_intf->dev, "%s called (skb 0x%p, len %u)", __func__,
+	     skb, skb->len);
 
 	/* racy disconnection check - fine */
 	if (!instance || instance->disconnected) {
@@ -688,7 +697,7 @@ static int usbatm_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
 		goto fail;
 	}
 
-	PACKETDEBUG(skb->data, skb->len);
+	PACKETDEBUG(instance, skb->data, skb->len);
 
 	/* initialize the control block */
 	ctrl->atm.vcc = vcc;
@@ -1202,7 +1211,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id,
 		if (i >= num_rcv_urbs)
 			list_add_tail(&urb->urb_list, &channel->list);
 
-		vdbg("%s: alloced buffer 0x%p buf size %u urb 0x%p",
+		vdbg(&intf->dev, "%s: alloced buffer 0x%p buf size %u urb 0x%p",
 		     __func__, urb->transfer_buffer, urb->transfer_buffer_length, urb);
 	}
 
@@ -1359,7 +1368,8 @@ MODULE_VERSION(DRIVER_VERSION);
 ************/
 
 #ifdef VERBOSE_DEBUG
-static int usbatm_print_packet(const unsigned char *data, int len)
+static int usbatm_print_packet(struct usbatm_data *instance,
+			       const unsigned char *data, int len)
 {
 	unsigned char buffer[256];
 	int i = 0, j = 0;
@@ -1369,7 +1379,7 @@ static int usbatm_print_packet(const unsigned char *data, int len)
 		sprintf(buffer, "%.3d :", i);
 		for (j = 0; (j < 16) && (i < len); j++, i++)
 			sprintf(buffer, "%s %2.2x", buffer, data[i]);
-		dbg("%s", buffer);
+		dev_dbg(&instance->usb_intf->dev, "%s", buffer);
 	}
 	return i;
 }
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 8337fb5d988..1ea932a1368 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -1,9 +1,9 @@
 config USB_CHIPIDEA
 	tristate "ChipIdea Highspeed Dual Role Controller"
-	depends on USB
+	depends on USB || USB_GADGET
 	help
-          Say Y here if your system has a dual role high speed USB
-          controller based on ChipIdea silicon IP. Currently, only the
+	  Say Y here if your system has a dual role high speed USB
+	  controller based on ChipIdea silicon IP. Currently, only the
 	  peripheral mode is supported.
 
 	  When compiled dynamically, the module will be called ci-hdrc.ko.
@@ -12,14 +12,14 @@ if USB_CHIPIDEA
 
 config USB_CHIPIDEA_UDC
 	bool "ChipIdea device controller"
-	depends on USB_GADGET
-	select USB_GADGET_DUALSPEED
+	depends on USB_GADGET=y || USB_GADGET=USB_CHIPIDEA
 	help
 	  Say Y here to enable device controller functionality of the
 	  ChipIdea driver.
 
 config USB_CHIPIDEA_HOST
 	bool "ChipIdea host controller"
+	depends on USB=y || USB=USB_CHIPIDEA
 	select USB_EHCI_ROOT_HUB_TT
 	help
 	  Say Y here to enable host controller functionality of the
diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index 5c66d9c330c..d92ca325b10 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -1,3 +1,5 @@
+ccflags-$(CONFIG_USB_CHIPIDEA_DEBUG) := -DDEBUG
+
 obj-$(CONFIG_USB_CHIPIDEA)		+= ci_hdrc.o
 
 ci_hdrc-y				:= core.o
@@ -15,5 +17,5 @@ ifneq ($(CONFIG_PCI),)
 endif
 
 ifneq ($(CONFIG_OF_DEVICE),)
-	obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_imx.o
+	obj-$(CONFIG_USB_CHIPIDEA)	+= ci13xxx_imx.o usbmisc_imx6q.o
 endif
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index d738603a275..e25d1263da1 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -139,6 +139,7 @@ struct ci13xxx {
 	enum ci_role			role;
 	bool				is_otg;
 	struct work_struct		work;
+	struct work_struct		vbus_work;
 	struct workqueue_struct		*wq;
 
 	struct dma_pool			*qh_pool;
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
index ef60d06835d..0f5ca4bea17 100644
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ b/drivers/usb/chipidea/ci13xxx_imx.c
@@ -20,8 +20,10 @@
 #include <linux/usb/chipidea.h>
 #include <linux/clk.h>
 #include <linux/regulator/consumer.h>
+#include <linux/pinctrl/consumer.h>
 
 #include "ci.h"
+#include "ci13xxx_imx.h"
 
 #define pdev_to_phy(pdev) \
 	((struct usb_phy *)platform_get_drvdata(pdev))
@@ -34,6 +36,55 @@ struct ci13xxx_imx_data {
 	struct regulator *reg_vbus;
 };
 
+static const struct usbmisc_ops *usbmisc_ops;
+
+/* Common functions shared by usbmisc drivers */
+
+int usbmisc_set_ops(const struct usbmisc_ops *ops)
+{
+	if (usbmisc_ops)
+		return -EBUSY;
+
+	usbmisc_ops = ops;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbmisc_set_ops);
+
+void usbmisc_unset_ops(const struct usbmisc_ops *ops)
+{
+	usbmisc_ops = NULL;
+}
+EXPORT_SYMBOL_GPL(usbmisc_unset_ops);
+
+int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev)
+{
+	struct device_node *np = dev->of_node;
+	struct of_phandle_args args;
+	int ret;
+
+	usbdev->dev = dev;
+
+	ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",
+					0, &args);
+	if (ret) {
+		dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n",
+			ret);
+		memset(usbdev, 0, sizeof(*usbdev));
+		return ret;
+	}
+	usbdev->index = args.args[0];
+	of_node_put(args.np);
+
+	if (of_find_property(np, "disable-over-current", NULL))
+		usbdev->disable_oc = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usbmisc_get_init_data);
+
+/* End of common functions shared by usbmisc drivers*/
+
 static struct ci13xxx_platform_data ci13xxx_imx_platdata __devinitdata  = {
 	.name			= "ci13xxx_imx",
 	.flags			= CI13XXX_REQUIRE_TRANSCEIVER |
@@ -49,8 +100,13 @@ static int __devinit ci13xxx_imx_probe(struct platform_device *pdev)
 	struct device_node *phy_np;
 	struct resource *res;
 	struct regulator *reg_vbus;
+	struct pinctrl *pinctrl;
 	int ret;
 
+	if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL)
+		&& !usbmisc_ops)
+		return -EPROBE_DEFER;
+
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data) {
 		dev_err(&pdev->dev, "Failed to allocate CI13xxx-IMX data!\n");
@@ -63,6 +119,11 @@ static int __devinit ci13xxx_imx_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(pinctrl))
+		dev_warn(&pdev->dev, "pinctrl get/select failed, err=%ld\n",
+			PTR_ERR(pinctrl));
+
 	data->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(data->clk)) {
 		dev_err(&pdev->dev,
@@ -120,6 +181,16 @@ static int __devinit ci13xxx_imx_probe(struct platform_device *pdev)
 		*pdev->dev.dma_mask = DMA_BIT_MASK(32);
 		dma_set_coherent_mask(&pdev->dev, *pdev->dev.dma_mask);
 	}
+
+	if (usbmisc_ops && usbmisc_ops->init) {
+		ret = usbmisc_ops->init(&pdev->dev);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"usbmisc init failed, ret=%d\n", ret);
+			goto err;
+		}
+	}
+
 	plat_ci = ci13xxx_add_device(&pdev->dev,
 				pdev->resource, pdev->num_resources,
 				&ci13xxx_imx_platdata);
diff --git a/drivers/usb/chipidea/ci13xxx_imx.h b/drivers/usb/chipidea/ci13xxx_imx.h
new file mode 100644
index 00000000000..2e88accb3d6
--- /dev/null
+++ b/drivers/usb/chipidea/ci13xxx_imx.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/* Used to set SoC specific callbacks */
+struct usbmisc_ops {
+	/* It's called once when probe a usb device */
+	int (*init)(struct device *dev);
+};
+
+struct usbmisc_usb_device {
+	struct device *dev; /* usb controller device */
+	int index;
+
+	int disable_oc:1; /* over current detect disabled */
+};
+
+int usbmisc_set_ops(const struct usbmisc_ops *ops);
+void usbmisc_unset_ops(const struct usbmisc_ops *ops);
+int
+usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev);
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 1083585fad0..f69d029b460 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -273,14 +273,13 @@ static void ci_role_work(struct work_struct *work)
 	struct ci13xxx *ci = container_of(work, struct ci13xxx, work);
 	enum ci_role role = ci_otg_role(ci);
 
-	hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS);
-
 	if (role != ci->role) {
 		dev_dbg(ci->dev, "switching from %s to %s\n",
 			ci_role(ci)->name, ci->roles[role]->name);
 
 		ci_role_stop(ci);
 		ci_role_start(ci, role);
+		enable_irq(ci->irq);
 	}
 }
 
@@ -320,17 +319,22 @@ static irqreturn_t ci_irq(int irq, void *data)
 {
 	struct ci13xxx *ci = data;
 	irqreturn_t ret = IRQ_NONE;
+	u32 otgsc = 0;
+
+	if (ci->is_otg)
+		otgsc = hw_read(ci, OP_OTGSC, ~0);
 
-	if (ci->is_otg) {
-		u32 sts = hw_read(ci, OP_OTGSC, ~0);
+	if (ci->role != CI_ROLE_END)
+		ret = ci_role(ci)->irq(ci);
 
-		if (sts & OTGSC_IDIS) {
-			queue_work(ci->wq, &ci->work);
-			ret = IRQ_HANDLED;
-		}
+	if (ci->is_otg && (otgsc & OTGSC_IDIS)) {
+		hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS);
+		disable_irq_nosync(ci->irq);
+		queue_work(ci->wq, &ci->work);
+		ret = IRQ_HANDLED;
 	}
 
-	return ci->role == CI_ROLE_END ? ret : ci_role(ci)->irq(ci);
+	return ret;
 }
 
 static DEFINE_IDA(ci_ida);
@@ -462,6 +466,8 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev)
 
 	if (ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET]) {
 		ci->is_otg = true;
+		/* ID pin needs 1ms debouce time, we delay 2ms for safe */
+		mdelay(2);
 		ci->role = ci_otg_role(ci);
 	} else {
 		ci->role = ci->roles[CI_ROLE_HOST]
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index c7a032a4f0c..2f45bba8561 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -78,8 +78,7 @@ static inline int ep_to_bit(struct ci13xxx *ci, int n)
 }
 
 /**
- * hw_device_state: enables/disables interrupts & starts/stops device (execute
- *                  without interruption)
+ * hw_device_state: enables/disables interrupts (execute without interruption)
  * @dma: 0 => disable, !0 => enable and set dma engine
  *
  * This function returns an error code
@@ -91,9 +90,7 @@ static int hw_device_state(struct ci13xxx *ci, u32 dma)
 		/* interrupt, error, port change, reset, sleep/suspend */
 		hw_write(ci, OP_USBINTR, ~0,
 			     USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);
-		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
 	} else {
-		hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
 		hw_write(ci, OP_USBINTR, ~0, 0);
 	}
 	return 0;
@@ -308,6 +305,18 @@ static u32 hw_test_and_clear_intr_active(struct ci13xxx *ci)
 	return reg;
 }
 
+static void hw_enable_vbus_intr(struct ci13xxx *ci)
+{
+	hw_write(ci, OP_OTGSC, OTGSC_AVVIS, OTGSC_AVVIS);
+	hw_write(ci, OP_OTGSC, OTGSC_AVVIE, OTGSC_AVVIE);
+	queue_work(ci->wq, &ci->vbus_work);
+}
+
+static void hw_disable_vbus_intr(struct ci13xxx *ci)
+{
+	hw_write(ci, OP_OTGSC, OTGSC_AVVIE, 0);
+}
+
 /**
  * hw_test_and_clear_setup_guard: test & clear setup guard (execute without
  *                                interruption)
@@ -374,6 +383,16 @@ static int hw_usb_reset(struct ci13xxx *ci)
 	return 0;
 }
 
+static void vbus_work(struct work_struct *work)
+{
+	struct ci13xxx *ci = container_of(work, struct ci13xxx, vbus_work);
+
+	if (hw_read(ci, OP_OTGSC, OTGSC_AVV))
+		usb_gadget_vbus_connect(&ci->gadget);
+	else
+		usb_gadget_vbus_disconnect(&ci->gadget);
+}
+
 /******************************************************************************
  * UTIL block
  *****************************************************************************/
@@ -774,10 +793,7 @@ __acquires(mEp->lock)
 {
 	struct ci13xxx_req *mReq, *mReqTemp;
 	struct ci13xxx_ep *mEpTemp = mEp;
-	int uninitialized_var(retval);
-
-	if (list_empty(&mEp->qh.queue))
-		return -EINVAL;
+	int retval = 0;
 
 	list_for_each_entry_safe(mReq, mReqTemp, &mEp->qh.queue,
 			queue) {
@@ -1376,6 +1392,7 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active)
 		if (is_active) {
 			pm_runtime_get_sync(&_gadget->dev);
 			hw_device_reset(ci, USBMODE_CM_DC);
+			hw_enable_vbus_intr(ci);
 			hw_device_state(ci, ci->ep0out->qh.dma);
 		} else {
 			hw_device_state(ci, 0);
@@ -1420,6 +1437,21 @@ static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
 	return -ENOTSUPP;
 }
 
+/* Change Data+ pullup status
+ * this func is used by usb_gadget_connect/disconnet
+ */
+static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on)
+{
+	struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
+
+	if (is_on)
+		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
+	else
+		hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
+
+	return 0;
+}
+
 static int ci13xxx_start(struct usb_gadget *gadget,
 			 struct usb_gadget_driver *driver);
 static int ci13xxx_stop(struct usb_gadget *gadget,
@@ -1432,6 +1464,7 @@ static int ci13xxx_stop(struct usb_gadget *gadget,
 static const struct usb_gadget_ops usb_gadget_ops = {
 	.vbus_session	= ci13xxx_vbus_session,
 	.wakeup		= ci13xxx_wakeup,
+	.pullup		= ci13xxx_pullup,
 	.vbus_draw	= ci13xxx_vbus_draw,
 	.udc_start	= ci13xxx_start,
 	.udc_stop	= ci13xxx_stop,
@@ -1455,7 +1488,12 @@ static int init_eps(struct ci13xxx *ci)
 
 			mEp->ep.name      = mEp->name;
 			mEp->ep.ops       = &usb_ep_ops;
-			mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;
+			/*
+			 * for ep0: maxP defined in desc, for other
+			 * eps, maxP is set by epautoconfig() called
+			 * by gadget layer
+			 */
+			mEp->ep.maxpacket = (unsigned short)~0;
 
 			INIT_LIST_HEAD(&mEp->qh.queue);
 			mEp->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL,
@@ -1475,6 +1513,7 @@ static int init_eps(struct ci13xxx *ci)
 				else
 					ci->ep0in = mEp;
 
+				mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;
 				continue;
 			}
 
@@ -1484,6 +1523,17 @@ static int init_eps(struct ci13xxx *ci)
 	return retval;
 }
 
+static void destroy_eps(struct ci13xxx *ci)
+{
+	int i;
+
+	for (i = 0; i < ci->hw_ep_max; i++) {
+		struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];
+
+		dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);
+	}
+}
+
 /**
  * ci13xxx_start: register a gadget driver
  * @gadget: our gadget
@@ -1517,8 +1567,10 @@ static int ci13xxx_start(struct usb_gadget *gadget,
 	pm_runtime_get_sync(&ci->gadget.dev);
 	if (ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) {
 		if (ci->vbus_active) {
-			if (ci->platdata->flags & CI13XXX_REGS_SHARED)
+			if (ci->platdata->flags & CI13XXX_REGS_SHARED) {
 				hw_device_reset(ci, USBMODE_CM_DC);
+				hw_enable_vbus_intr(ci);
+			}
 		} else {
 			pm_runtime_put_sync(&ci->gadget.dev);
 			goto done;
@@ -1624,6 +1676,13 @@ static irqreturn_t udc_irq(struct ci13xxx *ci)
 	} else {
 		retval = IRQ_NONE;
 	}
+
+	intr = hw_read(ci, OP_OTGSC, ~0);
+	hw_write(ci, OP_OTGSC, ~0, intr);
+
+	if (intr & (OTGSC_AVVIE & OTGSC_AVVIS))
+		queue_work(ci->wq, &ci->vbus_work);
+
 	spin_unlock(&ci->lock);
 
 	return retval;
@@ -1691,7 +1750,7 @@ static int udc_start(struct ci13xxx *ci)
 	if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
 		if (ci->transceiver == NULL) {
 			retval = -ENODEV;
-			goto free_pools;
+			goto destroy_eps;
 		}
 	}
 
@@ -1699,6 +1758,7 @@ static int udc_start(struct ci13xxx *ci)
 		retval = hw_device_reset(ci, USBMODE_CM_DC);
 		if (retval)
 			goto put_transceiver;
+		hw_enable_vbus_intr(ci);
 	}
 
 	retval = device_register(&ci->gadget.dev);
@@ -1729,7 +1789,7 @@ static int udc_start(struct ci13xxx *ci)
 
 remove_trans:
 	if (!IS_ERR_OR_NULL(ci->transceiver)) {
-		otg_set_peripheral(ci->transceiver->otg, &ci->gadget);
+		otg_set_peripheral(ci->transceiver->otg, NULL);
 		if (ci->global_phy)
 			usb_put_phy(ci->transceiver);
 	}
@@ -1742,6 +1802,8 @@ unreg_device:
 put_transceiver:
 	if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy)
 		usb_put_phy(ci->transceiver);
+destroy_eps:
+	destroy_eps(ci);
 free_pools:
 	dma_pool_destroy(ci->td_pool);
 free_qh_pool:
@@ -1756,18 +1818,15 @@ free_qh_pool:
  */
 static void udc_stop(struct ci13xxx *ci)
 {
-	int i;
-
 	if (ci == NULL)
 		return;
 
-	usb_del_gadget_udc(&ci->gadget);
+	hw_disable_vbus_intr(ci);
+	cancel_work_sync(&ci->vbus_work);
 
-	for (i = 0; i < ci->hw_ep_max; i++) {
-		struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];
+	usb_del_gadget_udc(&ci->gadget);
 
-		dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);
-	}
+	destroy_eps(ci);
 
 	dma_pool_destroy(ci->td_pool);
 	dma_pool_destroy(ci->qh_pool);
@@ -1805,6 +1864,7 @@ int ci_hdrc_gadget_init(struct ci13xxx *ci)
 	rdrv->irq	= udc_irq;
 	rdrv->name	= "gadget";
 	ci->roles[CI_ROLE_GADGET] = rdrv;
+	INIT_WORK(&ci->vbus_work, vbus_work);
 
 	return 0;
 }
diff --git a/drivers/usb/chipidea/usbmisc_imx6q.c b/drivers/usb/chipidea/usbmisc_imx6q.c
new file mode 100644
index 00000000000..416e3fc58fd
--- /dev/null
+++ b/drivers/usb/chipidea/usbmisc_imx6q.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include "ci13xxx_imx.h"
+
+#define USB_DEV_MAX 4
+
+#define BM_OVER_CUR_DIS		BIT(7)
+
+struct imx6q_usbmisc {
+	void __iomem *base;
+	spinlock_t lock;
+	struct clk *clk;
+	struct usbmisc_usb_device usbdev[USB_DEV_MAX];
+};
+
+static struct imx6q_usbmisc *usbmisc;
+
+static struct usbmisc_usb_device *get_usbdev(struct device *dev)
+{
+	int i, ret;
+
+	for (i = 0; i < USB_DEV_MAX; i++) {
+		if (usbmisc->usbdev[i].dev == dev)
+			return &usbmisc->usbdev[i];
+		else if (!usbmisc->usbdev[i].dev)
+			break;
+	}
+
+	if (i >= USB_DEV_MAX)
+		return ERR_PTR(-EBUSY);
+
+	ret = usbmisc_get_init_data(dev, &usbmisc->usbdev[i]);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return &usbmisc->usbdev[i];
+}
+
+static int usbmisc_imx6q_init(struct device *dev)
+{
+
+	struct usbmisc_usb_device *usbdev;
+	unsigned long flags;
+	u32 reg;
+
+	usbdev = get_usbdev(dev);
+	if (IS_ERR(usbdev))
+		return PTR_ERR(usbdev);
+
+	if (usbdev->disable_oc) {
+		spin_lock_irqsave(&usbmisc->lock, flags);
+		reg = readl(usbmisc->base + usbdev->index * 4);
+		writel(reg | BM_OVER_CUR_DIS,
+			usbmisc->base + usbdev->index * 4);
+		spin_unlock_irqrestore(&usbmisc->lock, flags);
+	}
+
+	return 0;
+}
+
+static const struct usbmisc_ops imx6q_usbmisc_ops = {
+	.init = usbmisc_imx6q_init,
+};
+
+static const struct of_device_id usbmisc_imx6q_dt_ids[] = {
+	{ .compatible = "fsl,imx6q-usbmisc"},
+	{ /* sentinel */ }
+};
+
+static int __devinit usbmisc_imx6q_probe(struct platform_device *pdev)
+{
+	struct resource	*res;
+	struct imx6q_usbmisc *data;
+	int ret;
+
+	if (usbmisc)
+		return -EBUSY;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	spin_lock_init(&data->lock);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	data->base = devm_request_and_ioremap(&pdev->dev, res);
+	if (!data->base)
+		return -EADDRNOTAVAIL;
+
+	data->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(data->clk)) {
+		dev_err(&pdev->dev,
+			"failed to get clock, err=%ld\n", PTR_ERR(data->clk));
+		return PTR_ERR(data->clk);
+	}
+
+	ret = clk_prepare_enable(data->clk);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"clk_prepare_enable failed, err=%d\n", ret);
+		return ret;
+	}
+
+	ret = usbmisc_set_ops(&imx6q_usbmisc_ops);
+	if (ret) {
+		clk_disable_unprepare(data->clk);
+		return ret;
+	}
+
+	usbmisc = data;
+
+	return 0;
+}
+
+static int __devexit usbmisc_imx6q_remove(struct platform_device *pdev)
+{
+	usbmisc_unset_ops(&imx6q_usbmisc_ops);
+	clk_disable_unprepare(usbmisc->clk);
+	return 0;
+}
+
+static struct platform_driver usbmisc_imx6q_driver = {
+	.probe = usbmisc_imx6q_probe,
+	.remove = __devexit_p(usbmisc_imx6q_remove),
+	.driver = {
+		.name = "usbmisc_imx6q",
+		.owner = THIS_MODULE,
+		.of_match_table = usbmisc_imx6q_dt_ids,
+	 },
+};
+
+int __init usbmisc_imx6q_drv_init(void)
+{
+	return platform_driver_register(&usbmisc_imx6q_driver);
+}
+subsys_initcall(usbmisc_imx6q_drv_init);
+
+void __exit usbmisc_imx6q_drv_exit(void)
+{
+	platform_driver_unregister(&usbmisc_imx6q_driver);
+}
+module_exit(usbmisc_imx6q_drv_exit);
+
+MODULE_ALIAS("platform:usbmisc-imx6q");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("driver for imx6q usb non-core registers");
+MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 56d6bf66848..36f2be4def2 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -39,7 +39,6 @@
 #include <linux/serial.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
-#include <linux/serial.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/uaccess.h>
@@ -826,7 +825,7 @@ static void acm_tty_set_termios(struct tty_struct *tty,
 						struct ktermios *termios_old)
 {
 	struct acm *acm = tty->driver_data;
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	struct usb_cdc_line_coding newline;
 	int newctrl = acm->ctrlout;
 
@@ -1104,7 +1103,8 @@ skip_normal_probe:
 	}
 
 
-	if (data_interface->cur_altsetting->desc.bNumEndpoints < 2)
+	if (data_interface->cur_altsetting->desc.bNumEndpoints < 2 ||
+	    control_interface->cur_altsetting->desc.bNumEndpoints == 0)
 		return -EINVAL;
 
 	epctrl = &control_interface->cur_altsetting->endpoint[0].desc;
@@ -1298,7 +1298,8 @@ skip_countries:
 	usb_set_intfdata(data_interface, acm);
 
 	usb_get_intf(control_interface);
-	tty_register_device(acm_tty_driver, minor, &control_interface->dev);
+	tty_port_register_device(&acm->port, acm_tty_driver, minor,
+			&control_interface->dev);
 
 	return 0;
 alloc_fail7:
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 65a55abb791..5f0cb417b73 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -109,12 +109,14 @@ static struct usb_driver wdm_driver;
 /* return intfdata if we own the interface, else look up intf in the list */
 static struct wdm_device *wdm_find_device(struct usb_interface *intf)
 {
-	struct wdm_device *desc = NULL;
+	struct wdm_device *desc;
 
 	spin_lock(&wdm_device_list_lock);
 	list_for_each_entry(desc, &wdm_device_list, device_list)
 		if (desc->intf == intf)
-			break;
+			goto found;
+	desc = NULL;
+found:
 	spin_unlock(&wdm_device_list_lock);
 
 	return desc;
@@ -122,12 +124,14 @@ static struct wdm_device *wdm_find_device(struct usb_interface *intf)
 
 static struct wdm_device *wdm_find_device_by_minor(int minor)
 {
-	struct wdm_device *desc = NULL;
+	struct wdm_device *desc;
 
 	spin_lock(&wdm_device_list_lock);
 	list_for_each_entry(desc, &wdm_device_list, device_list)
 		if (desc->intf->minor == minor)
-			break;
+			goto found;
+	desc = NULL;
+found:
 	spin_unlock(&wdm_device_list_lock);
 
 	return desc;
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 9981984b365..f70c1a1694a 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -56,7 +56,7 @@ config USB_SUSPEND
 
 config USB_OTG
 	bool "OTG support"
-	depends on USB && EXPERIMENTAL
+	depends on USB
 	depends on USB_SUSPEND
 	default n
 	help
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index f4bdd0ce8d5..7199adccf44 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -702,6 +702,8 @@ int usb_get_configuration(struct usb_device *dev)
 		if (result < 0) {
 			dev_err(ddev, "unable to read config index %d "
 			    "descriptor/%s: %d\n", cfgno, "start", result);
+			if (result != -EPIPE)
+				goto err;
 			dev_err(ddev, "chopping to %d config(s)\n", cfgno);
 			dev->descriptor.bNumConfigurations = cfgno;
 			break;
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index d9569658476..f460de31ace 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -496,6 +496,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
 	char *pages_start, *data_end, *speed;
 	unsigned int length;
 	ssize_t total_written = 0;
+	struct usb_device *childdev = NULL;
 
 	/* don't bother with anything else if we're not writing any data */
 	if (*nbytes <= 0)
@@ -589,14 +590,12 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
 	free_pages((unsigned long)pages_start, 1);
 
 	/* Now look at all of this device's children. */
-	for (chix = 0; chix < usbdev->maxchild; chix++) {
-		struct usb_device *childdev = usbdev->children[chix];
-
+	usb_hub_for_each_child(usbdev, chix, childdev) {
 		if (childdev) {
 			usb_lock_device(childdev);
 			ret = usb_device_dump(buffer, nbytes, skip_bytes,
 					      file_offset, childdev, bus,
-					      level + 1, chix, ++cnt);
+					      level + 1, chix - 1, ++cnt);
 			usb_unlock_device(childdev);
 			if (ret == -EFAULT)
 				return total_written;
@@ -624,7 +623,7 @@ static ssize_t usb_device_read(struct file *file, char __user *buf,
 	/* print devices for all busses */
 	list_for_each_entry(bus, &usb_bus_list, bus_list) {
 		/* recurse through all children of the root hub */
-		if (!bus->root_hub)
+		if (!bus_to_hcd(bus)->rh_registered)
 			continue;
 		usb_lock_device(bus->root_hub);
 		ret = usb_device_dump(&buf, &nbytes, &skip_bytes, ppos,
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index ebb8a9de8b5..e0356cb859b 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1928,6 +1928,38 @@ static int proc_get_capabilities(struct dev_state *ps, void __user *arg)
 	return 0;
 }
 
+static int proc_disconnect_claim(struct dev_state *ps, void __user *arg)
+{
+	struct usbdevfs_disconnect_claim dc;
+	struct usb_interface *intf;
+
+	if (copy_from_user(&dc, arg, sizeof(dc)))
+		return -EFAULT;
+
+	intf = usb_ifnum_to_if(ps->dev, dc.interface);
+	if (!intf)
+		return -EINVAL;
+
+	if (intf->dev.driver) {
+		struct usb_driver *driver = to_usb_driver(intf->dev.driver);
+
+		if ((dc.flags & USBDEVFS_DISCONNECT_CLAIM_IF_DRIVER) &&
+				strncmp(dc.driver, intf->dev.driver->name,
+					sizeof(dc.driver)) != 0)
+			return -EBUSY;
+
+		if ((dc.flags & USBDEVFS_DISCONNECT_CLAIM_EXCEPT_DRIVER) &&
+				strncmp(dc.driver, intf->dev.driver->name,
+					sizeof(dc.driver)) == 0)
+			return -EBUSY;
+
+		dev_dbg(&intf->dev, "disconnect by usbfs\n");
+		usb_driver_release_interface(driver, intf);
+	}
+
+	return claimintf(ps, dc.interface);
+}
+
 /*
  * NOTE:  All requests here that have interface numbers as parameters
  * are assuming that somehow the configuration has been prevented from
@@ -2101,6 +2133,9 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd,
 	case USBDEVFS_GET_CAPABILITIES:
 		ret = proc_get_capabilities(ps, p);
 		break;
+	case USBDEVFS_DISCONNECT_CLAIM:
+		ret = proc_disconnect_claim(ps, p);
+		break;
 	}
 	usb_unlock_device(dev);
 	if (ret >= 0)
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 445455a4429..ddd820d2528 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -125,10 +125,9 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
 {
 	struct usb_dynid *dynid, *n;
 	struct usb_driver *usb_driver = to_usb_driver(driver);
-	u32 idVendor = 0;
-	u32 idProduct = 0;
-	int fields = 0;
-	int retval = 0;
+	u32 idVendor;
+	u32 idProduct;
+	int fields;
 
 	fields = sscanf(buf, "%x %x", &idVendor, &idProduct);
 	if (fields < 2)
@@ -141,14 +140,10 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
 		    (id->idProduct == idProduct)) {
 			list_del(&dynid->node);
 			kfree(dynid);
-			retval = 0;
 			break;
 		}
 	}
 	spin_unlock(&usb_driver->dynids.lock);
-
-	if (retval)
-		return retval;
 	return count;
 }
 static DRIVER_ATTR(remove_id, S_IRUGO | S_IWUSR, show_dynids, store_remove_id);
diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index db7fe50c23d..68cc6532e74 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -24,10 +24,6 @@ struct ep_device {
 #define to_ep_device(_dev) \
 	container_of(_dev, struct ep_device, dev)
 
-struct device_type usb_ep_device_type = {
-	.name =		"usb_endpoint",
-};
-
 struct ep_attribute {
 	struct attribute attr;
 	ssize_t (*show)(struct usb_device *,
@@ -172,6 +168,11 @@ static void ep_device_release(struct device *dev)
 	kfree(ep_dev);
 }
 
+struct device_type usb_ep_device_type = {
+	.name =		"usb_endpoint",
+	.release = ep_device_release,
+};
+
 int usb_create_ep_devs(struct device *parent,
 			struct usb_host_endpoint *endpoint,
 			struct usb_device *udev)
@@ -190,7 +191,6 @@ int usb_create_ep_devs(struct device *parent,
 	ep_dev->dev.groups = ep_dev_groups;
 	ep_dev->dev.type = &usb_ep_device_type;
 	ep_dev->dev.parent = parent;
-	ep_dev->dev.release = ep_device_release;
 	dev_set_name(&ep_dev->dev, "ep_%02x", endpoint->desc.bEndpointAddress);
 
 	retval = device_register(&ep_dev->dev);
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index bc84106ac05..1e741bca026 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -22,6 +22,7 @@
  * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/bcd.h>
 #include <linux/module.h>
 #include <linux/version.h>
 #include <linux/kernel.h>
@@ -123,9 +124,8 @@ static inline int is_root_hub(struct usb_device *udev)
  */
 
 /*-------------------------------------------------------------------------*/
-
-#define KERNEL_REL	((LINUX_VERSION_CODE >> 16) & 0x0ff)
-#define KERNEL_VER	((LINUX_VERSION_CODE >> 8) & 0x0ff)
+#define KERNEL_REL	bin2bcd(((LINUX_VERSION_CODE >> 16) & 0x0ff))
+#define KERNEL_VER	bin2bcd(((LINUX_VERSION_CODE >> 8) & 0x0ff))
 
 /* usb 3.0 root hub device descriptor */
 static const u8 usb3_rh_dev_descriptor[18] = {
@@ -1011,10 +1011,7 @@ static int register_root_hub(struct usb_hcd *hcd)
 	if (retval) {
 		dev_err (parent_dev, "can't register root hub for %s, %d\n",
 				dev_name(&usb_dev->dev), retval);
-	}
-	mutex_unlock(&usb_bus_list_lock);
-
-	if (retval == 0) {
+	} else {
 		spin_lock_irq (&hcd_root_hub_lock);
 		hcd->rh_registered = 1;
 		spin_unlock_irq (&hcd_root_hub_lock);
@@ -1023,6 +1020,7 @@ static int register_root_hub(struct usb_hcd *hcd)
 		if (HCD_DEAD(hcd))
 			usb_hc_died (hcd);	/* This time clean up */
 	}
+	mutex_unlock(&usb_bus_list_lock);
 
 	return retval;
 }
@@ -2153,15 +2151,8 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum);
 irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 {
 	struct usb_hcd		*hcd = __hcd;
-	unsigned long		flags;
 	irqreturn_t		rc;
 
-	/* IRQF_DISABLED doesn't work correctly with shared IRQs
-	 * when the first handler doesn't use it.  So let's just
-	 * assume it's never used.
-	 */
-	local_irq_save(flags);
-
 	if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd)))
 		rc = IRQ_NONE;
 	else if (hcd->driver->irq(hcd) == IRQ_NONE)
@@ -2169,7 +2160,6 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 	else
 		rc = IRQ_HANDLED;
 
-	local_irq_restore(flags);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_irq);
@@ -2357,14 +2347,6 @@ static int usb_hcd_request_irqs(struct usb_hcd *hcd,
 	int retval;
 
 	if (hcd->driver->irq) {
-
-		/* IRQF_DISABLED doesn't work as advertised when used together
-		 * with IRQF_SHARED. As usb_hcd_irq() will always disable
-		 * interrupts we can remove it here.
-		 */
-		if (irqflags & IRQF_SHARED)
-			irqflags &= ~IRQF_DISABLED;
-
 		snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d",
 				hcd->driver->description, hcd->self.busnum);
 		retval = request_irq(irqnum, &usb_hcd_irq, irqflags,
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 128a804c42f..673ee469626 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -39,6 +39,13 @@
 #endif
 #endif
 
+struct usb_port {
+	struct usb_device *child;
+	struct device dev;
+	struct dev_state *port_owner;
+	enum usb_port_connect_type connect_type;
+};
+
 struct usb_hub {
 	struct device		*intfdev;	/* the "interface" device */
 	struct usb_device	*hdev;
@@ -83,7 +90,7 @@ struct usb_hub {
 	u8			indicator[USB_MAXCHILDREN];
 	struct delayed_work	leds;
 	struct delayed_work	init_work;
-	struct dev_state	**port_owners;
+	struct usb_port		**ports;
 };
 
 static inline int hub_is_superspeed(struct usb_device *hdev)
@@ -156,6 +163,8 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
 #define HUB_DEBOUNCE_STEP	  25
 #define HUB_DEBOUNCE_STABLE	 100
 
+#define to_usb_port(_dev) \
+	container_of(_dev, struct usb_port, dev)
 
 static int usb_reset_and_verify_device(struct usb_device *udev);
 
@@ -174,7 +183,7 @@ static inline char *portspeed(struct usb_hub *hub, int portstatus)
 /* Note that hdev or one of its children must be locked! */
 static struct usb_hub *hdev_to_hub(struct usb_device *hdev)
 {
-	if (!hdev || !hdev->actconfig)
+	if (!hdev || !hdev->actconfig || !hdev->maxchild)
 		return NULL;
 	return usb_get_intfdata(hdev->actconfig->interface[0]);
 }
@@ -869,8 +878,8 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
 	struct usb_device *hdev = hub->hdev;
 	int ret = 0;
 
-	if (hdev->children[port1-1] && set_state)
-		usb_set_device_state(hdev->children[port1-1],
+	if (hub->ports[port1 - 1]->child && set_state)
+		usb_set_device_state(hub->ports[port1 - 1]->child,
 				USB_STATE_NOTATTACHED);
 	if (!hub->error && !hub_is_superspeed(hub->hdev))
 		ret = clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE);
@@ -1026,7 +1035,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
 	 * which ports need attention.
 	 */
 	for (port1 = 1; port1 <= hdev->maxchild; ++port1) {
-		struct usb_device *udev = hdev->children[port1-1];
+		struct usb_device *udev = hub->ports[port1 - 1]->child;
 		u16 portstatus, portchange;
 
 		portstatus = portchange = 0;
@@ -1191,8 +1200,8 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type)
 	if (type != HUB_SUSPEND) {
 		/* Disconnect all the children */
 		for (i = 0; i < hdev->maxchild; ++i) {
-			if (hdev->children[i])
-				usb_disconnect(&hdev->children[i]);
+			if (hub->ports[i]->child)
+				usb_disconnect(&hub->ports[i]->child);
 		}
 	}
 
@@ -1222,6 +1231,52 @@ static int hub_post_reset(struct usb_interface *intf)
 	return 0;
 }
 
+static void usb_port_device_release(struct device *dev)
+{
+	struct usb_port *port_dev = to_usb_port(dev);
+
+	kfree(port_dev);
+}
+
+static void usb_hub_remove_port_device(struct usb_hub *hub,
+				       int port1)
+{
+	device_unregister(&hub->ports[port1 - 1]->dev);
+}
+
+struct device_type usb_port_device_type = {
+	.name =		"usb_port",
+	.release =	usb_port_device_release,
+};
+
+static int usb_hub_create_port_device(struct usb_hub *hub,
+				      int port1)
+{
+	struct usb_port *port_dev = NULL;
+	int retval;
+
+	port_dev = kzalloc(sizeof(*port_dev), GFP_KERNEL);
+	if (!port_dev) {
+		retval = -ENOMEM;
+		goto exit;
+	}
+
+	hub->ports[port1 - 1] = port_dev;
+	port_dev->dev.parent = hub->intfdev;
+	port_dev->dev.type = &usb_port_device_type;
+	dev_set_name(&port_dev->dev, "port%d", port1);
+
+	retval = device_register(&port_dev->dev);
+	if (retval)
+		goto error_register;
+	return 0;
+
+error_register:
+	put_device(&port_dev->dev);
+exit:
+	return retval;
+}
+
 static int hub_configure(struct usb_hub *hub,
 	struct usb_endpoint_descriptor *endpoint)
 {
@@ -1231,7 +1286,7 @@ static int hub_configure(struct usb_hub *hub,
 	u16 hubstatus, hubchange;
 	u16 wHubCharacteristics;
 	unsigned int pipe;
-	int maxp, ret;
+	int maxp, ret, i;
 	char *message = "out of memory";
 
 	hub->buffer = kmalloc(sizeof(*hub->buffer), GFP_KERNEL);
@@ -1271,11 +1326,9 @@ static int hub_configure(struct usb_hub *hub,
 	dev_info (hub_dev, "%d port%s detected\n", hdev->maxchild,
 		(hdev->maxchild == 1) ? "" : "s");
 
-	hdev->children = kzalloc(hdev->maxchild *
-				sizeof(struct usb_device *), GFP_KERNEL);
-	hub->port_owners = kzalloc(hdev->maxchild * sizeof(struct dev_state *),
-				GFP_KERNEL);
-	if (!hdev->children || !hub->port_owners) {
+	hub->ports = kzalloc(hdev->maxchild * sizeof(struct usb_port *),
+			     GFP_KERNEL);
+	if (!hub->ports) {
 		ret = -ENOMEM;
 		goto fail;
 	}
@@ -1484,6 +1537,11 @@ static int hub_configure(struct usb_hub *hub,
 	if (hub->has_indicators && blinkenlights)
 		hub->indicator [0] = INDICATOR_CYCLE;
 
+	for (i = 0; i < hdev->maxchild; i++)
+		if (usb_hub_create_port_device(hub, i + 1) < 0)
+			dev_err(hub->intfdev,
+				"couldn't create port%d device.\n", i + 1);
+
 	hub_activate(hub, HUB_INIT);
 	return 0;
 
@@ -1508,6 +1566,7 @@ static void hub_disconnect(struct usb_interface *intf)
 {
 	struct usb_hub *hub = usb_get_intfdata(intf);
 	struct usb_device *hdev = interface_to_usbdev(intf);
+	int i;
 
 	/* Take the hub off the event list and don't let it be added again */
 	spin_lock_irq(&hub_event_lock);
@@ -1523,14 +1582,16 @@ static void hub_disconnect(struct usb_interface *intf)
 	hub_quiesce(hub, HUB_DISCONNECT);
 
 	usb_set_intfdata (intf, NULL);
+
+	for (i = 0; i < hdev->maxchild; i++)
+		usb_hub_remove_port_device(hub, i + 1);
 	hub->hdev->maxchild = 0;
 
 	if (hub->hdev->speed == USB_SPEED_HIGH)
 		highspeed_hubs--;
 
 	usb_free_urb(hub->urb);
-	kfree(hdev->children);
-	kfree(hub->port_owners);
+	kfree(hub->ports);
 	kfree(hub->descriptor);
 	kfree(hub->status);
 	kfree(hub->buffer);
@@ -1617,6 +1678,7 @@ static int
 hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data)
 {
 	struct usb_device *hdev = interface_to_usbdev (intf);
+	struct usb_hub *hub = hdev_to_hub(hdev);
 
 	/* assert ifno == 0 (part of hub spec) */
 	switch (code) {
@@ -1630,11 +1692,11 @@ hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data)
 		else {
 			info->nports = hdev->maxchild;
 			for (i = 0; i < info->nports; i++) {
-				if (hdev->children[i] == NULL)
+				if (hub->ports[i]->child == NULL)
 					info->port[i] = 0;
 				else
 					info->port[i] =
-						hdev->children[i]->devnum;
+						hub->ports[i]->child->devnum;
 			}
 		}
 		spin_unlock_irq(&device_state_lock);
@@ -1662,7 +1724,7 @@ static int find_port_owner(struct usb_device *hdev, unsigned port1,
 	/* This assumes that devices not managed by the hub driver
 	 * will always have maxchild equal to 0.
 	 */
-	*ppowner = &(hdev_to_hub(hdev)->port_owners[port1 - 1]);
+	*ppowner = &(hdev_to_hub(hdev)->ports[port1 - 1]->port_owner);
 	return 0;
 }
 
@@ -1699,16 +1761,14 @@ int usb_hub_release_port(struct usb_device *hdev, unsigned port1,
 
 void usb_hub_release_all_ports(struct usb_device *hdev, struct dev_state *owner)
 {
+	struct usb_hub *hub = hdev_to_hub(hdev);
 	int n;
-	struct dev_state **powner;
 
-	n = find_port_owner(hdev, 1, &powner);
-	if (n == 0) {
-		for (; n < hdev->maxchild; (++n, ++powner)) {
-			if (*powner == owner)
-				*powner = NULL;
-		}
+	for (n = 0; n < hdev->maxchild; n++) {
+		if (hub->ports[n]->port_owner == owner)
+			hub->ports[n]->port_owner = NULL;
 	}
+
 }
 
 /* The caller must hold udev's lock */
@@ -1719,17 +1779,17 @@ bool usb_device_is_owned(struct usb_device *udev)
 	if (udev->state == USB_STATE_NOTATTACHED || !udev->parent)
 		return false;
 	hub = hdev_to_hub(udev->parent);
-	return !!hub->port_owners[udev->portnum - 1];
+	return !!hub->ports[udev->portnum - 1]->port_owner;
 }
 
-
 static void recursively_mark_NOTATTACHED(struct usb_device *udev)
 {
+	struct usb_hub *hub = hdev_to_hub(udev);
 	int i;
 
 	for (i = 0; i < udev->maxchild; ++i) {
-		if (udev->children[i])
-			recursively_mark_NOTATTACHED(udev->children[i]);
+		if (hub->ports[i]->child)
+			recursively_mark_NOTATTACHED(hub->ports[i]->child);
 	}
 	if (udev->state == USB_STATE_SUSPENDED)
 		udev->active_duration -= jiffies;
@@ -1893,6 +1953,7 @@ static void hub_free_dev(struct usb_device *udev)
 void usb_disconnect(struct usb_device **pdev)
 {
 	struct usb_device	*udev = *pdev;
+	struct usb_hub		*hub = hdev_to_hub(udev);
 	int			i;
 
 	/* mark the device as inactive, so any further urb submissions for
@@ -1907,8 +1968,8 @@ void usb_disconnect(struct usb_device **pdev)
 
 	/* Free up all the children before we remove this device */
 	for (i = 0; i < udev->maxchild; i++) {
-		if (udev->children[i])
-			usb_disconnect(&udev->children[i]);
+		if (hub->ports[i]->child)
+			usb_disconnect(&hub->ports[i]->child);
 	}
 
 	/* deallocate hcd/hardware state ... nuking all pending urbs and
@@ -2113,7 +2174,8 @@ static void set_usb_port_removable(struct usb_device *udev)
 		return;
 
 	if (hub_is_superspeed(hdev)) {
-		if (hub->descriptor->u.ss.DeviceRemovable & (1 << port))
+		if (le16_to_cpu(hub->descriptor->u.ss.DeviceRemovable)
+				& (1 << port))
 			removable = false;
 	} else {
 		if (hub->descriptor->u.hs.DeviceRemovable[port / 8] & (1 << (port % 8)))
@@ -3072,7 +3134,7 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg)
 	for (port1 = 1; port1 <= hdev->maxchild; port1++) {
 		struct usb_device	*udev;
 
-		udev = hdev->children [port1-1];
+		udev = hub->ports[port1 - 1]->child;
 		if (udev && udev->can_submit) {
 			dev_warn(&intf->dev, "port %d nyet suspended\n", port1);
 			if (PMSG_IS_AUTO(msg))
@@ -3999,7 +4061,7 @@ hub_power_remaining (struct usb_hub *hub)
 
 	remaining = hdev->bus_mA - hub->descriptor->bHubContrCurrent;
 	for (port1 = 1; port1 <= hdev->maxchild; ++port1) {
-		struct usb_device	*udev = hdev->children[port1 - 1];
+		struct usb_device	*udev = hub->ports[port1 - 1]->child;
 		int			delta;
 
 		if (!udev)
@@ -4063,7 +4125,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 #endif
 
 	/* Try to resuscitate an existing device */
-	udev = hdev->children[port1-1];
+	udev = hub->ports[port1 - 1]->child;
 	if ((portstatus & USB_PORT_STAT_CONNECTION) && udev &&
 			udev->state != USB_STATE_NOTATTACHED) {
 		usb_lock_device(udev);
@@ -4092,7 +4154,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 
 	/* Disconnect any existing devices under this port */
 	if (udev)
-		usb_disconnect(&hdev->children[port1-1]);
+		usb_disconnect(&hub->ports[port1 - 1]->child);
 	clear_bit(port1, hub->change_bits);
 
 	/* We can forget about a "removed" device when there's a physical
@@ -4228,7 +4290,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 		if (hdev->state == USB_STATE_NOTATTACHED)
 			status = -ENOTCONN;
 		else
-			hdev->children[port1-1] = udev;
+			hub->ports[port1 - 1]->child = udev;
 		spin_unlock_irq(&device_state_lock);
 
 		/* Run it through the hoops (find a driver, etc) */
@@ -4236,7 +4298,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 			status = usb_new_device(udev);
 			if (status) {
 				spin_lock_irq(&device_state_lock);
-				hdev->children[port1-1] = NULL;
+				hub->ports[port1 - 1]->child = NULL;
 				spin_unlock_irq(&device_state_lock);
 			}
 		}
@@ -4282,7 +4344,7 @@ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
 	int ret;
 
 	hdev = hub->hdev;
-	udev = hdev->children[port-1];
+	udev = hub->ports[port - 1]->child;
 	if (!hub_is_superspeed(hdev)) {
 		if (!(portchange & USB_PORT_STAT_C_SUSPEND))
 			return 0;
@@ -4436,7 +4498,7 @@ static void hub_events(void)
 				 */
 				if (!(portstatus & USB_PORT_STAT_ENABLE)
 				    && !connect_change
-				    && hdev->children[i-1]) {
+				    && hub->ports[i - 1]->child) {
 					dev_err (hub_dev,
 					    "port %i "
 					    "disabled by hub (EMI?), "
@@ -4993,3 +5055,75 @@ void usb_queue_reset_device(struct usb_interface *iface)
 	schedule_work(&iface->reset_ws);
 }
 EXPORT_SYMBOL_GPL(usb_queue_reset_device);
+
+/**
+ * usb_hub_find_child - Get the pointer of child device
+ * attached to the port which is specified by @port1.
+ * @hdev: USB device belonging to the usb hub
+ * @port1: port num to indicate which port the child device
+ *	is attached to.
+ *
+ * USB drivers call this function to get hub's child device
+ * pointer.
+ *
+ * Return NULL if input param is invalid and
+ * child's usb_device pointer if non-NULL.
+ */
+struct usb_device *usb_hub_find_child(struct usb_device *hdev,
+		int port1)
+{
+	struct usb_hub *hub = hdev_to_hub(hdev);
+
+	if (port1 < 1 || port1 > hdev->maxchild)
+		return NULL;
+	return hub->ports[port1 - 1]->child;
+}
+EXPORT_SYMBOL_GPL(usb_hub_find_child);
+
+/**
+ * usb_set_hub_port_connect_type - set hub port connect type.
+ * @hdev: USB device belonging to the usb hub
+ * @port1: port num of the port
+ * @type: connect type of the port
+ */
+void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1,
+	enum usb_port_connect_type type)
+{
+	struct usb_hub *hub = hdev_to_hub(hdev);
+
+	hub->ports[port1 - 1]->connect_type = type;
+}
+
+/**
+ * usb_get_hub_port_connect_type - Get the port's connect type
+ * @hdev: USB device belonging to the usb hub
+ * @port1: port num of the port
+ *
+ * Return connect type of the port and if input params are
+ * invalid, return USB_PORT_CONNECT_TYPE_UNKNOWN.
+ */
+enum usb_port_connect_type
+usb_get_hub_port_connect_type(struct usb_device *hdev, int port1)
+{
+	struct usb_hub *hub = hdev_to_hub(hdev);
+
+	return hub->ports[port1 - 1]->connect_type;
+}
+
+#ifdef CONFIG_ACPI
+/**
+ * usb_get_hub_port_acpi_handle - Get the usb port's acpi handle
+ * @hdev: USB device belonging to the usb hub
+ * @port1: port num of the port
+ *
+ * Return port's acpi handle if successful, NULL if params are
+ * invaild.
+ */
+acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
+	int port1)
+{
+	struct usb_hub *hub = hdev_to_hub(hdev);
+
+	return DEVICE_ACPI_HANDLE(&hub->ports[port1 - 1]->dev);
+}
+#endif
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 0ab7da2283e..1ed5afd91e6 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -146,8 +146,6 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
 	dr->wIndex = cpu_to_le16(index);
 	dr->wLength = cpu_to_le16(size);
 
-	/* dbg("usb_control_msg"); */
-
 	ret = usb_internal_control_msg(dev, pipe, dr, data, size, timeout);
 
 	kfree(dr);
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f15501f4c58..fdefd9c7f7a 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -71,6 +71,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x04b4, 0x0526), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
 
+	/* Microchip Joss Optical infrared touchboard device */
+	{ USB_DEVICE(0x04d8, 0x000c), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* Samsung Android phone modem - ID conflict with SPH-I500 */
 	{ USB_DEVICE(0x04e8, 0x6601), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
@@ -205,7 +209,7 @@ void usb_detect_quirks(struct usb_device *udev)
 	 * for all devices.  It will affect things like hub resets
 	 * and EMF-related port disables.
 	 */
-	if (!(udev->quirks & USB_QUIRK_RESET_MORPHS))
+	if (!(udev->quirks & USB_QUIRK_RESET))
 		udev->persist_enabled = 1;
 #endif	/* CONFIG_PM */
 }
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 682e8256b95..818e4a024d0 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -196,7 +196,7 @@ show_avoid_reset_quirk(struct device *dev, struct device_attribute *attr, char *
 	struct usb_device *udev;
 
 	udev = to_usb_device(dev);
-	return sprintf(buf, "%d\n", !!(udev->quirks & USB_QUIRK_RESET_MORPHS));
+	return sprintf(buf, "%d\n", !!(udev->quirks & USB_QUIRK_RESET));
 }
 
 static ssize_t
@@ -204,15 +204,15 @@ set_avoid_reset_quirk(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct usb_device	*udev = to_usb_device(dev);
-	int			config;
+	int			val;
 
-	if (sscanf(buf, "%d", &config) != 1 || config < 0 || config > 1)
+	if (sscanf(buf, "%d", &val) != 1 || val < 0 || val > 1)
 		return -EINVAL;
 	usb_lock_device(udev);
-	if (config)
-		udev->quirks |= USB_QUIRK_RESET_MORPHS;
+	if (val)
+		udev->quirks |= USB_QUIRK_RESET;
 	else
-		udev->quirks &= ~USB_QUIRK_RESET_MORPHS;
+		udev->quirks &= ~USB_QUIRK_RESET;
 	usb_unlock_device(udev);
 	return count;
 }
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index 8947b203d5a..0ef7d42d8ab 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -19,20 +19,91 @@
 
 #include "usb.h"
 
-static int usb_acpi_check_upc(struct usb_device *udev, acpi_handle handle)
+/**
+ * usb_acpi_power_manageable - check whether usb port has
+ * acpi power resource.
+ * @hdev: USB device belonging to the usb hub
+ * @index: port index based zero
+ *
+ * Return true if the port has acpi power resource and false if no.
+ */
+bool usb_acpi_power_manageable(struct usb_device *hdev, int index)
+{
+	acpi_handle port_handle;
+	int port1 = index + 1;
+
+	port_handle = usb_get_hub_port_acpi_handle(hdev,
+		port1);
+	if (port_handle)
+		return acpi_bus_power_manageable(port_handle);
+	else
+		return false;
+}
+EXPORT_SYMBOL_GPL(usb_acpi_power_manageable);
+
+/**
+ * usb_acpi_set_power_state - control usb port's power via acpi power
+ * resource
+ * @hdev: USB device belonging to the usb hub
+ * @index: port index based zero
+ * @enable: power state expected to be set
+ *
+ * Notice to use usb_acpi_power_manageable() to check whether the usb port
+ * has acpi power resource before invoking this function.
+ *
+ * Returns 0 on success, else negative errno.
+ */
+int usb_acpi_set_power_state(struct usb_device *hdev, int index, bool enable)
+{
+	acpi_handle port_handle;
+	unsigned char state;
+	int port1 = index + 1;
+	int error = -EINVAL;
+
+	port_handle = (acpi_handle)usb_get_hub_port_acpi_handle(hdev,
+		port1);
+	if (!port_handle)
+		return error;
+
+	if (enable)
+		state = ACPI_STATE_D0;
+	else
+		state = ACPI_STATE_D3_COLD;
+
+	error = acpi_bus_set_power(port_handle, state);
+	if (!error)
+		dev_dbg(&hdev->dev, "The power of hub port %d was set to %d\n",
+			port1, enable);
+	else
+		dev_dbg(&hdev->dev, "The power of hub port failed to be set\n");
+
+	return error;
+}
+EXPORT_SYMBOL_GPL(usb_acpi_set_power_state);
+
+static int usb_acpi_check_port_connect_type(struct usb_device *hdev,
+	acpi_handle handle, int port1)
 {
 	acpi_status status;
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *upc;
+	struct acpi_pld pld;
 	int ret = 0;
 
-	status = acpi_evaluate_object(handle, "_UPC", NULL, &buffer);
-
+	/*
+	 * Accoding to ACPI Spec 9.13. PLD indicates whether usb port is
+	 * user visible and _UPC indicates whether it is connectable. If
+	 * the port was visible and connectable, it could be freely connected
+	 * and disconnected with USB devices. If no visible and connectable,
+	 * a usb device is directly hard-wired to the port. If no visible and
+	 * no connectable, the port would be not used.
+	 */
+	status = acpi_get_physical_device_location(handle, &pld);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
+	status = acpi_evaluate_object(handle, "_UPC", NULL, &buffer);
 	upc = buffer.pointer;
-
 	if (!upc || (upc->type != ACPI_TYPE_PACKAGE)
 		|| upc->package.count != 4) {
 		ret = -EINVAL;
@@ -40,69 +111,107 @@ static int usb_acpi_check_upc(struct usb_device *udev, acpi_handle handle)
 	}
 
 	if (upc->package.elements[0].integer.value)
-		udev->removable = USB_DEVICE_REMOVABLE;
-	else
-		udev->removable = USB_DEVICE_FIXED;
+		if (pld.user_visible)
+			usb_set_hub_port_connect_type(hdev, port1,
+				USB_PORT_CONNECT_TYPE_HOT_PLUG);
+		else
+			usb_set_hub_port_connect_type(hdev, port1,
+				USB_PORT_CONNECT_TYPE_HARD_WIRED);
+	else if (!pld.user_visible)
+		usb_set_hub_port_connect_type(hdev, port1, USB_PORT_NOT_USED);
 
 out:
 	kfree(upc);
 	return ret;
 }
 
-static int usb_acpi_check_pld(struct usb_device *udev, acpi_handle handle)
-{
-	acpi_status status;
-	struct acpi_pld pld;
-
-	status = acpi_get_physical_device_location(handle, &pld);
-
-	if (ACPI_FAILURE(status))
-		return -ENODEV;
-
-	if (pld.user_visible)
-		udev->removable = USB_DEVICE_REMOVABLE;
-	else
-		udev->removable = USB_DEVICE_FIXED;
-
-	return 0;
-}
-
 static int usb_acpi_find_device(struct device *dev, acpi_handle *handle)
 {
 	struct usb_device *udev;
-	struct device *parent;
 	acpi_handle *parent_handle;
-
-	if (!is_usb_device(dev))
-		return -ENODEV;
-
-	udev = to_usb_device(dev);
-	parent = dev->parent;
-	parent_handle = DEVICE_ACPI_HANDLE(parent);
-
-	if (!parent_handle)
-		return -ENODEV;
-
-	*handle = acpi_get_child(parent_handle, udev->portnum);
-
-	if (!*handle)
-		return -ENODEV;
+	int port_num;
 
 	/*
-	 * PLD will tell us whether a port is removable to the user or
-	 * not. If we don't get an answer from PLD (it's not present
-	 * or it's malformed) then try to infer it from UPC. If a
-	 * device isn't connectable then it's probably not removable.
+	 * In the ACPI DSDT table, only usb root hub and usb ports are
+	 * acpi device nodes. The hierarchy like following.
+	 * Device (EHC1)
+	 *	Device (HUBN)
+	 *		Device (PR01)
+	 *			Device (PR11)
+	 *			Device (PR12)
+	 *			Device (PR13)
+	 *			...
+	 * So all binding process is divided into two parts. binding
+	 * root hub and usb ports.
 	 */
-	if (usb_acpi_check_pld(udev, *handle) != 0)
-		usb_acpi_check_upc(udev, *handle);
+	if (is_usb_device(dev)) {
+		udev = to_usb_device(dev);
+		if (udev->parent) {
+			enum usb_port_connect_type type;
+
+			/*
+			 * According usb port's connect type to set usb device's
+			 * removability.
+			 */
+			type = usb_get_hub_port_connect_type(udev->parent,
+				udev->portnum);
+			switch (type) {
+			case USB_PORT_CONNECT_TYPE_HOT_PLUG:
+				udev->removable = USB_DEVICE_REMOVABLE;
+				break;
+			case USB_PORT_CONNECT_TYPE_HARD_WIRED:
+				udev->removable = USB_DEVICE_FIXED;
+				break;
+			default:
+				udev->removable = USB_DEVICE_REMOVABLE_UNKNOWN;
+				break;
+			}
+
+			return -ENODEV;
+		}
+
+		/* root hub's parent is the usb hcd. */
+		parent_handle = DEVICE_ACPI_HANDLE(dev->parent);
+		*handle = acpi_get_child(parent_handle, udev->portnum);
+		if (!*handle)
+			return -ENODEV;
+		return 0;
+	} else if (is_usb_port(dev)) {
+		sscanf(dev_name(dev), "port%d", &port_num);
+		/* Get the struct usb_device point of port's hub */
+		udev = to_usb_device(dev->parent->parent);
+
+		/*
+		 * The root hub ports' parent is the root hub. The non-root-hub
+		 * ports' parent is the parent hub port which the hub is
+		 * connected to.
+		 */
+		if (!udev->parent) {
+			*handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev),
+				port_num);
+			if (!*handle)
+				return -ENODEV;
+		} else {
+			parent_handle =
+				usb_get_hub_port_acpi_handle(udev->parent,
+				udev->portnum);
+			if (!parent_handle)
+				return -ENODEV;
+
+			*handle = acpi_get_child(parent_handle,	port_num);
+			if (!*handle)
+				return -ENODEV;
+		}
+		usb_acpi_check_port_connect_type(udev, *handle, port_num);
+	} else
+		return -ENODEV;
 
 	return 0;
 }
 
 static struct acpi_bus_type usb_acpi_bus = {
 	.bus = &usb_bus_type,
-	.find_bridge = NULL,
+	.find_bridge = usb_acpi_find_device,
 	.find_device = usb_acpi_find_device,
 };
 
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index acb103c5c39..1c528c1bf0b 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -1,4 +1,5 @@
 #include <linux/pm.h>
+#include <linux/acpi.h>
 
 struct dev_state;
 
@@ -115,6 +116,7 @@ extern struct bus_type usb_bus_type;
 extern struct device_type usb_device_type;
 extern struct device_type usb_if_device_type;
 extern struct device_type usb_ep_device_type;
+extern struct device_type usb_port_device_type;
 extern struct usb_device_driver usb_generic_driver;
 
 static inline int is_usb_device(const struct device *dev)
@@ -132,6 +134,11 @@ static inline int is_usb_endpoint(const struct device *dev)
 	return dev->type == &usb_ep_device_type;
 }
 
+static inline int is_usb_port(const struct device *dev)
+{
+	return dev->type == &usb_port_device_type;
+}
+
 /* Do the same for device drivers and interface drivers. */
 
 static inline int is_usb_device_driver(struct device_driver *drv)
@@ -162,10 +169,16 @@ extern void usb_notify_add_device(struct usb_device *udev);
 extern void usb_notify_remove_device(struct usb_device *udev);
 extern void usb_notify_add_bus(struct usb_bus *ubus);
 extern void usb_notify_remove_bus(struct usb_bus *ubus);
+extern enum usb_port_connect_type
+	usb_get_hub_port_connect_type(struct usb_device *hdev, int port1);
+extern void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1,
+	enum usb_port_connect_type type);
 
 #ifdef CONFIG_ACPI
 extern int usb_acpi_register(void);
 extern void usb_acpi_unregister(void);
+extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
+	int port1);
 #else
 static inline int usb_acpi_register(void) { return 0; };
 static inline void usb_acpi_unregister(void) { };
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index d13c60f4213..f6a6e070c2a 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -2,8 +2,6 @@ config USB_DWC3
 	tristate "DesignWare USB3 DRD Core Support"
 	depends on (USB && USB_GADGET)
 	select USB_OTG_UTILS
-	select USB_GADGET_DUALSPEED
-	select USB_GADGET_SUPERSPEED
 	select USB_XHCI_PLATFORM if USB_SUPPORT && USB_XHCI_HCD
 	help
 	  Say Y or M here if your system has a Dual Role SuperSpeed
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index c34452a7304..b415c0c859d 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -50,6 +50,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/of.h>
 
+#include <linux/usb/otg.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 
@@ -99,6 +100,7 @@ void dwc3_put_device_id(int id)
 
 	ret = test_bit(id, dwc3_devs);
 	WARN(!ret, "dwc3: ID %d not in use\n", id);
+	smp_mb__before_clear_bit();
 	clear_bit(id, dwc3_devs);
 }
 EXPORT_SYMBOL_GPL(dwc3_put_device_id);
@@ -136,6 +138,8 @@ static void dwc3_core_soft_reset(struct dwc3 *dwc)
 	reg |= DWC3_GUSB2PHYCFG_PHYSOFTRST;
 	dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
 
+	usb_phy_init(dwc->usb2_phy);
+	usb_phy_init(dwc->usb3_phy);
 	mdelay(100);
 
 	/* Clear USB3 PHY reset */
@@ -436,16 +440,21 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
 		dev_err(dev, "missing IRQ\n");
 		return -ENODEV;
 	}
-	dwc->xhci_resources[1] = *res;
+	dwc->xhci_resources[1].start = res->start;
+	dwc->xhci_resources[1].end = res->end;
+	dwc->xhci_resources[1].flags = res->flags;
+	dwc->xhci_resources[1].name = res->name;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(dev, "missing memory resource\n");
 		return -ENODEV;
 	}
-	dwc->xhci_resources[0] = *res;
+	dwc->xhci_resources[0].start = res->start;
 	dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
 					DWC3_XHCI_REGS_END;
+	dwc->xhci_resources[0].flags = res->flags;
+	dwc->xhci_resources[0].name = res->name;
 
 	 /*
 	  * Request memory region but exclude xHCI regs,
@@ -459,12 +468,24 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	regs = devm_ioremap(dev, res->start, resource_size(res));
+	regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
 	if (!regs) {
 		dev_err(dev, "ioremap failed\n");
 		return -ENOMEM;
 	}
 
+	dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+	if (IS_ERR_OR_NULL(dwc->usb2_phy)) {
+		dev_err(dev, "no usb2 phy configured\n");
+		return -EPROBE_DEFER;
+	}
+
+	dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
+	if (IS_ERR_OR_NULL(dwc->usb3_phy)) {
+		dev_err(dev, "no usb3 phy configured\n");
+		return -EPROBE_DEFER;
+	}
+
 	spin_lock_init(&dwc->lock);
 	platform_set_drvdata(pdev, dwc);
 
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 151eca876df..243affc9343 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -457,7 +457,6 @@ enum dwc3_phy {
 enum dwc3_ep0_next {
 	DWC3_EP0_UNKNOWN = 0,
 	DWC3_EP0_COMPLETE,
-	DWC3_EP0_NRDY_SETUP,
 	DWC3_EP0_NRDY_DATA,
 	DWC3_EP0_NRDY_STATUS,
 };
@@ -624,6 +623,8 @@ struct dwc3_scratchpad_array {
  * @maximum_speed: maximum speed requested (mainly for testing purposes)
  * @revision: revision register contents
  * @mode: mode of operation
+ * @usb2_phy: pointer to USB2 PHY
+ * @usb3_phy: pointer to USB3 PHY
  * @is_selfpowered: true when we are selfpowered
  * @three_stage_setup: set if we perform a three phase setup
  * @ep0_bounced: true when we used bounce buffer
@@ -667,6 +668,9 @@ struct dwc3 {
 	struct usb_gadget	gadget;
 	struct usb_gadget_driver *gadget_driver;
 
+	struct usb_phy		*usb2_phy;
+	struct usb_phy		*usb3_phy;
+
 	void __iomem		*regs;
 	size_t			regs_size;
 
@@ -779,7 +783,6 @@ struct dwc3_event_depevt {
 #define DEPEVT_STREAMEVT_NOTFOUND	2
 
 /* Control-only Status */
-#define DEPEVT_STATUS_CONTROL_SETUP	0
 #define DEPEVT_STATUS_CONTROL_DATA	1
 #define DEPEVT_STATUS_CONTROL_STATUS	2
 
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index b8f00389fa3..ca6597853f9 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -19,16 +19,74 @@
 #include <linux/platform_data/dwc3-exynos.h>
 #include <linux/dma-mapping.h>
 #include <linux/clk.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include "core.h"
 
 struct dwc3_exynos {
 	struct platform_device	*dwc3;
+	struct platform_device	*usb2_phy;
+	struct platform_device	*usb3_phy;
 	struct device		*dev;
 
 	struct clk		*clk;
 };
 
+static int __devinit dwc3_exynos_register_phys(struct dwc3_exynos *exynos)
+{
+	struct nop_usb_xceiv_platform_data pdata;
+	struct platform_device	*pdev;
+	int			ret;
+
+	memset(&pdata, 0x00, sizeof(pdata));
+
+	pdev = platform_device_alloc("nop_usb_xceiv", 0);
+	if (!pdev)
+		return -ENOMEM;
+
+	exynos->usb2_phy = pdev;
+	pdata.type = USB_PHY_TYPE_USB2;
+
+	ret = platform_device_add_data(exynos->usb2_phy, &pdata, sizeof(pdata));
+	if (ret)
+		goto err1;
+
+	pdev = platform_device_alloc("nop_usb_xceiv", 1);
+	if (!pdev) {
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	exynos->usb3_phy = pdev;
+	pdata.type = USB_PHY_TYPE_USB3;
+
+	ret = platform_device_add_data(exynos->usb3_phy, &pdata, sizeof(pdata));
+	if (ret)
+		goto err2;
+
+	ret = platform_device_add(exynos->usb2_phy);
+	if (ret)
+		goto err2;
+
+	ret = platform_device_add(exynos->usb3_phy);
+	if (ret)
+		goto err3;
+
+	return 0;
+
+err3:
+	platform_device_del(exynos->usb2_phy);
+
+err2:
+	platform_device_put(exynos->usb3_phy);
+
+err1:
+	platform_device_put(exynos->usb2_phy);
+
+	return ret;
+}
+
 static int __devinit dwc3_exynos_probe(struct platform_device *pdev)
 {
 	struct dwc3_exynos_data	*pdata = pdev->dev.platform_data;
@@ -51,6 +109,12 @@ static int __devinit dwc3_exynos_probe(struct platform_device *pdev)
 	if (devid < 0)
 		goto err1;
 
+	ret = dwc3_exynos_register_phys(exynos);
+	if (ret) {
+		dev_err(&pdev->dev, "couldn't register PHYs\n");
+		goto err1;
+	}
+
 	dwc3 = platform_device_alloc("dwc3", devid);
 	if (!dwc3) {
 		dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
@@ -120,6 +184,8 @@ static int __devexit dwc3_exynos_remove(struct platform_device *pdev)
 	struct dwc3_exynos_data *pdata = pdev->dev.platform_data;
 
 	platform_device_unregister(exynos->dwc3);
+	platform_device_unregister(exynos->usb2_phy);
+	platform_device_unregister(exynos->usb3_phy);
 
 	dwc3_put_device_id(exynos->dwc3->id);
 
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 479dc047da3..ee57a10d90d 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -48,6 +48,9 @@
 #include <linux/io.h>
 #include <linux/of.h>
 
+#include <linux/usb/otg.h>
+#include <linux/usb/nop-usb-xceiv.h>
+
 #include "core.h"
 
 /*
@@ -131,6 +134,8 @@ struct dwc3_omap {
 	spinlock_t		lock;
 
 	struct platform_device	*dwc3;
+	struct platform_device	*usb2_phy;
+	struct platform_device	*usb3_phy;
 	struct device		*dev;
 
 	int			irq;
@@ -152,6 +157,59 @@ static inline void dwc3_omap_writel(void __iomem *base, u32 offset, u32 value)
 	writel(value, base + offset);
 }
 
+static int __devinit dwc3_omap_register_phys(struct dwc3_omap *omap)
+{
+	struct nop_usb_xceiv_platform_data pdata;
+	struct platform_device	*pdev;
+	int			ret;
+
+	memset(&pdata, 0x00, sizeof(pdata));
+
+	pdev = platform_device_alloc("nop_usb_xceiv", 0);
+	if (!pdev)
+		return -ENOMEM;
+
+	omap->usb2_phy = pdev;
+	pdata.type = USB_PHY_TYPE_USB2;
+
+	ret = platform_device_add_data(omap->usb2_phy, &pdata, sizeof(pdata));
+	if (ret)
+		goto err1;
+
+	pdev = platform_device_alloc("nop_usb_xceiv", 1);
+	if (!pdev) {
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	omap->usb3_phy = pdev;
+	pdata.type = USB_PHY_TYPE_USB3;
+
+	ret = platform_device_add_data(omap->usb3_phy, &pdata, sizeof(pdata));
+	if (ret)
+		goto err2;
+
+	ret = platform_device_add(omap->usb2_phy);
+	if (ret)
+		goto err2;
+
+	ret = platform_device_add(omap->usb3_phy);
+	if (ret)
+		goto err3;
+
+	return 0;
+
+err3:
+	platform_device_del(omap->usb2_phy);
+
+err2:
+	platform_device_put(omap->usb3_phy);
+
+err1:
+	platform_device_put(omap->usb2_phy);
+
+	return ret;
+}
 
 static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
 {
@@ -251,6 +309,12 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	ret = dwc3_omap_register_phys(omap);
+	if (ret) {
+		dev_err(dev, "couldn't register PHYs\n");
+		return ret;
+	}
+
 	devid = dwc3_get_device_id();
 	if (devid < 0)
 		return -ENODEV;
@@ -371,6 +435,8 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev)
 	struct dwc3_omap	*omap = platform_get_drvdata(pdev);
 
 	platform_device_unregister(omap->dwc3);
+	platform_device_unregister(omap->usb2_phy);
+	platform_device_unregister(omap->usb3_phy);
 
 	dwc3_put_device_id(omap->dwc3->id);
 
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index a9ca9adba39..94f550e37f9 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -42,6 +42,9 @@
 #include <linux/pci.h>
 #include <linux/platform_device.h>
 
+#include <linux/usb/otg.h>
+#include <linux/usb/nop-usb-xceiv.h>
+
 #include "core.h"
 
 /* FIXME define these in <linux/pci_ids.h> */
@@ -51,8 +54,64 @@
 struct dwc3_pci {
 	struct device		*dev;
 	struct platform_device	*dwc3;
+	struct platform_device	*usb2_phy;
+	struct platform_device	*usb3_phy;
 };
 
+static int __devinit dwc3_pci_register_phys(struct dwc3_pci *glue)
+{
+	struct nop_usb_xceiv_platform_data pdata;
+	struct platform_device	*pdev;
+	int			ret;
+
+	memset(&pdata, 0x00, sizeof(pdata));
+
+	pdev = platform_device_alloc("nop_usb_xceiv", 0);
+	if (!pdev)
+		return -ENOMEM;
+
+	glue->usb2_phy = pdev;
+	pdata.type = USB_PHY_TYPE_USB2;
+
+	ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata));
+	if (ret)
+		goto err1;
+
+	pdev = platform_device_alloc("nop_usb_xceiv", 1);
+	if (!pdev) {
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	glue->usb3_phy = pdev;
+	pdata.type = USB_PHY_TYPE_USB3;
+
+	ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata));
+	if (ret)
+		goto err2;
+
+	ret = platform_device_add(glue->usb2_phy);
+	if (ret)
+		goto err2;
+
+	ret = platform_device_add(glue->usb3_phy);
+	if (ret)
+		goto err3;
+
+	return 0;
+
+err3:
+	platform_device_del(glue->usb2_phy);
+
+err2:
+	platform_device_put(glue->usb3_phy);
+
+err1:
+	platform_device_put(glue->usb2_phy);
+
+	return ret;
+}
+
 static int __devinit dwc3_pci_probe(struct pci_dev *pci,
 		const struct pci_device_id *id)
 {
@@ -80,6 +139,12 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
 	pci_set_power_state(pci, PCI_D0);
 	pci_set_master(pci);
 
+	ret = dwc3_pci_register_phys(glue);
+	if (ret) {
+		dev_err(dev, "couldn't register PHYs\n");
+		return ret;
+	}
+
 	devid = dwc3_get_device_id();
 	if (devid < 0) {
 		ret = -ENOMEM;
@@ -144,6 +209,8 @@ static void __devexit dwc3_pci_remove(struct pci_dev *pci)
 {
 	struct dwc3_pci	*glue = pci_get_drvdata(pci);
 
+	platform_device_unregister(glue->usb2_phy);
+	platform_device_unregister(glue->usb3_phy);
 	dwc3_put_device_id(glue->dwc3->id);
 	platform_device_unregister(glue->dwc3);
 	pci_set_drvdata(pci, NULL);
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 9b94886b66e..d7da073a23f 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -125,7 +125,6 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 		struct dwc3_request *req)
 {
 	struct dwc3		*dwc = dep->dwc;
-	int			ret = 0;
 
 	req->request.actual	= 0;
 	req->request.status	= -EINPROGRESS;
@@ -156,16 +155,72 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 
 		dep->flags &= ~(DWC3_EP_PENDING_REQUEST |
 				DWC3_EP0_DIR_IN);
-	} else if (dwc->delayed_status) {
+
+		return 0;
+	}
+
+	/*
+	 * In case gadget driver asked us to delay the STATUS phase,
+	 * handle it here.
+	 */
+	if (dwc->delayed_status) {
+		unsigned	direction;
+
+		direction = !dwc->ep0_expect_in;
 		dwc->delayed_status = false;
 
 		if (dwc->ep0state == EP0_STATUS_PHASE)
-			__dwc3_ep0_do_control_status(dwc, dwc->eps[1]);
+			__dwc3_ep0_do_control_status(dwc, dwc->eps[direction]);
 		else
 			dev_dbg(dwc->dev, "too early for delayed status\n");
+
+		return 0;
 	}
 
-	return ret;
+	/*
+	 * Unfortunately we have uncovered a limitation wrt the Data Phase.
+	 *
+	 * Section 9.4 says we can wait for the XferNotReady(DATA) event to
+	 * come before issueing Start Transfer command, but if we do, we will
+	 * miss situations where the host starts another SETUP phase instead of
+	 * the DATA phase.  Such cases happen at least on TD.7.6 of the Link
+	 * Layer Compliance Suite.
+	 *
+	 * The problem surfaces due to the fact that in case of back-to-back
+	 * SETUP packets there will be no XferNotReady(DATA) generated and we
+	 * will be stuck waiting for XferNotReady(DATA) forever.
+	 *
+	 * By looking at tables 9-13 and 9-14 of the Databook, we can see that
+	 * it tells us to start Data Phase right away. It also mentions that if
+	 * we receive a SETUP phase instead of the DATA phase, core will issue
+	 * XferComplete for the DATA phase, before actually initiating it in
+	 * the wire, with the TRB's status set to "SETUP_PENDING". Such status
+	 * can only be used to print some debugging logs, as the core expects
+	 * us to go through to the STATUS phase and start a CONTROL_STATUS TRB,
+	 * just so it completes right away, without transferring anything and,
+	 * only then, we can go back to the SETUP phase.
+	 *
+	 * Because of this scenario, SNPS decided to change the programming
+	 * model of control transfers and support on-demand transfers only for
+	 * the STATUS phase. To fix the issue we have now, we will always wait
+	 * for gadget driver to queue the DATA phase's struct usb_request, then
+	 * start it right away.
+	 *
+	 * If we're actually in a 2-stage transfer, we will wait for
+	 * XferNotReady(STATUS).
+	 */
+	if (dwc->three_stage_setup) {
+		unsigned        direction;
+
+		direction = dwc->ep0_expect_in;
+		dwc->ep0state = EP0_DATA_PHASE;
+
+		__dwc3_ep0_do_control_data(dwc, dwc->eps[direction], req);
+
+		dep->flags &= ~DWC3_EP0_DIR_IN;
+	}
+
+	return 0;
 }
 
 int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
@@ -207,9 +262,14 @@ out:
 
 static void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
 {
-	struct dwc3_ep		*dep = dwc->eps[0];
+	struct dwc3_ep		*dep;
+
+	/* reinitialize physical ep1 */
+	dep = dwc->eps[1];
+	dep->flags = DWC3_EP_ENABLED;
 
 	/* stall is always issued on EP0 */
+	dep = dwc->eps[0];
 	__dwc3_gadget_ep_set_halt(dep, 1);
 	dep->flags = DWC3_EP_ENABLED;
 	dwc->delayed_status = false;
@@ -698,6 +758,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 	struct dwc3_trb		*trb;
 	struct dwc3_ep		*ep0;
 	u32			transferred;
+	u32			status;
 	u32			length;
 	u8			epnum;
 
@@ -710,6 +771,17 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 	ur = &r->request;
 
 	trb = dwc->ep0_trb;
+
+	status = DWC3_TRB_SIZE_TRBSTS(trb->size);
+	if (status == DWC3_TRBSTS_SETUP_PENDING) {
+		dev_dbg(dwc->dev, "Setup Pending received\n");
+
+		if (r)
+			dwc3_gadget_giveback(ep0, r, -ECONNRESET);
+
+		return;
+	}
+
 	length = trb->size & DWC3_TRB_SIZE_MASK;
 
 	if (dwc->ep0_bounced) {
@@ -720,7 +792,6 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 		transferred = min_t(u32, ur->length,
 				transfer_size - length);
 		memcpy(ur->buf, dwc->ep0_bounce, transferred);
-		dwc->ep0_bounced = false;
 	} else {
 		transferred = ur->length - length;
 	}
@@ -746,8 +817,11 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
 {
 	struct dwc3_request	*r;
 	struct dwc3_ep		*dep;
+	struct dwc3_trb		*trb;
+	u32			status;
 
 	dep = dwc->eps[0];
+	trb = dwc->ep0_trb;
 
 	if (!list_empty(&dep->request_list)) {
 		r = next_request(&dep->request_list);
@@ -767,6 +841,10 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
 		}
 	}
 
+	status = DWC3_TRB_SIZE_TRBSTS(trb->size);
+	if (status == DWC3_TRBSTS_SETUP_PENDING)
+		dev_dbg(dwc->dev, "Setup Pending received\n");
+
 	dwc->ep0state = EP0_SETUP_PHASE;
 	dwc3_ep0_out_start(dwc);
 }
@@ -800,12 +878,6 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
 	}
 }
 
-static void dwc3_ep0_do_control_setup(struct dwc3 *dwc,
-		const struct dwc3_event_depevt *event)
-{
-	dwc3_ep0_out_start(dwc);
-}
-
 static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		struct dwc3_ep *dep, struct dwc3_request *req)
 {
@@ -858,29 +930,6 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 	WARN_ON(ret < 0);
 }
 
-static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
-		const struct dwc3_event_depevt *event)
-{
-	struct dwc3_ep		*dep;
-	struct dwc3_request	*req;
-
-	dep = dwc->eps[0];
-
-	if (list_empty(&dep->request_list)) {
-		dev_vdbg(dwc->dev, "pending request for EP0 Data phase\n");
-		dep->flags |= DWC3_EP_PENDING_REQUEST;
-
-		if (event->endpoint_number)
-			dep->flags |= DWC3_EP0_DIR_IN;
-		return;
-	}
-
-	req = next_request(&dep->request_list);
-	dep = dwc->eps[event->endpoint_number];
-
-	__dwc3_ep0_do_control_data(dwc, dep, req);
-}
-
 static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)
 {
 	struct dwc3		*dwc = dep->dwc;
@@ -912,100 +961,61 @@ static void dwc3_ep0_do_control_status(struct dwc3 *dwc,
 	__dwc3_ep0_do_control_status(dwc, dep);
 }
 
-static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
-		const struct dwc3_event_depevt *event)
+static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
 {
-	dwc->setup_packet_pending = true;
-
-	/*
-	 * This part is very tricky: If we have just handled
-	 * XferNotReady(Setup) and we're now expecting a
-	 * XferComplete but, instead, we receive another
-	 * XferNotReady(Setup), we should STALL and restart
-	 * the state machine.
-	 *
-	 * In all other cases, we just continue waiting
-	 * for the XferComplete event.
-	 *
-	 * We are a little bit unsafe here because we're
-	 * not trying to ensure that last event was, indeed,
-	 * XferNotReady(Setup).
-	 *
-	 * Still, we don't expect any condition where that
-	 * should happen and, even if it does, it would be
-	 * another error condition.
-	 */
-	if (dwc->ep0_next_event == DWC3_EP0_COMPLETE) {
-		switch (event->status) {
-		case DEPEVT_STATUS_CONTROL_SETUP:
-			dev_vdbg(dwc->dev, "Unexpected XferNotReady(Setup)\n");
-			dwc3_ep0_stall_and_restart(dwc);
-			break;
-		case DEPEVT_STATUS_CONTROL_DATA:
-			/* FALLTHROUGH */
-		case DEPEVT_STATUS_CONTROL_STATUS:
-			/* FALLTHROUGH */
-		default:
-			dev_vdbg(dwc->dev, "waiting for XferComplete\n");
-		}
+	struct dwc3_gadget_ep_cmd_params params;
+	u32			cmd;
+	int			ret;
 
+	if (!dep->resource_index)
 		return;
-	}
-
-	switch (event->status) {
-	case DEPEVT_STATUS_CONTROL_SETUP:
-		dev_vdbg(dwc->dev, "Control Setup\n");
 
-		dwc->ep0state = EP0_SETUP_PHASE;
+	cmd = DWC3_DEPCMD_ENDTRANSFER;
+	cmd |= DWC3_DEPCMD_CMDIOC;
+	cmd |= DWC3_DEPCMD_PARAM(dep->resource_index);
+	memset(&params, 0, sizeof(params));
+	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, &params);
+	WARN_ON_ONCE(ret);
+	dep->resource_index = 0;
+}
 
-		dwc3_ep0_do_control_setup(dwc, event);
-		break;
+static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
+		const struct dwc3_event_depevt *event)
+{
+	dwc->setup_packet_pending = true;
 
+	switch (event->status) {
 	case DEPEVT_STATUS_CONTROL_DATA:
 		dev_vdbg(dwc->dev, "Control Data\n");
 
-		dwc->ep0state = EP0_DATA_PHASE;
-
-		if (dwc->ep0_next_event != DWC3_EP0_NRDY_DATA) {
-			dev_vdbg(dwc->dev, "Expected %d got %d\n",
-					dwc->ep0_next_event,
-					DWC3_EP0_NRDY_DATA);
-
-			dwc3_ep0_stall_and_restart(dwc);
-			return;
-		}
-
 		/*
-		 * One of the possible error cases is when Host _does_
-		 * request for Data Phase, but it does so on the wrong
-		 * direction.
+		 * We already have a DATA transfer in the controller's cache,
+		 * if we receive a XferNotReady(DATA) we will ignore it, unless
+		 * it's for the wrong direction.
 		 *
-		 * Here, we already know ep0_next_event is DATA (see above),
-		 * so we only need to check for direction.
+		 * In that case, we must issue END_TRANSFER command to the Data
+		 * Phase we already have started and issue SetStall on the
+		 * control endpoint.
 		 */
 		if (dwc->ep0_expect_in != event->endpoint_number) {
+			struct dwc3_ep	*dep = dwc->eps[dwc->ep0_expect_in];
+
 			dev_vdbg(dwc->dev, "Wrong direction for Data phase\n");
+			dwc3_ep0_end_control_data(dwc, dep);
 			dwc3_ep0_stall_and_restart(dwc);
 			return;
 		}
 
-		dwc3_ep0_do_control_data(dwc, event);
 		break;
 
 	case DEPEVT_STATUS_CONTROL_STATUS:
+		if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS)
+			return;
+
 		dev_vdbg(dwc->dev, "Control Status\n");
 
 		dwc->ep0state = EP0_STATUS_PHASE;
 
-		if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS) {
-			dev_vdbg(dwc->dev, "Expected %d got %d\n",
-					dwc->ep0_next_event,
-					DWC3_EP0_NRDY_STATUS);
-
-			dwc3_ep0_stall_and_restart(dwc);
-			return;
-		}
-
 		if (dwc->delayed_status) {
 			WARN_ON_ONCE(event->endpoint_number != 1);
 			dev_vdbg(dwc->dev, "Mass Storage delayed status\n");
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 58fdfad96b4..c9e729a4bf6 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -263,8 +263,11 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 	if (req->request.status == -EINPROGRESS)
 		req->request.status = status;
 
-	usb_gadget_unmap_request(&dwc->gadget, &req->request,
-			req->direction);
+	if (dwc->ep0_bounced && dep->number == 0)
+		dwc->ep0_bounced = false;
+	else
+		usb_gadget_unmap_request(&dwc->gadget, &req->request,
+				req->direction);
 
 	dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n",
 			req, dep->name, req->request.actual,
@@ -431,15 +434,25 @@ static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep)
 
 static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
 		const struct usb_endpoint_descriptor *desc,
-		const struct usb_ss_ep_comp_descriptor *comp_desc)
+		const struct usb_ss_ep_comp_descriptor *comp_desc,
+		bool ignore)
 {
 	struct dwc3_gadget_ep_cmd_params params;
 
 	memset(&params, 0x00, sizeof(params));
 
 	params.param0 = DWC3_DEPCFG_EP_TYPE(usb_endpoint_type(desc))
-		| DWC3_DEPCFG_MAX_PACKET_SIZE(usb_endpoint_maxp(desc))
-		| DWC3_DEPCFG_BURST_SIZE(dep->endpoint.maxburst - 1);
+		| DWC3_DEPCFG_MAX_PACKET_SIZE(usb_endpoint_maxp(desc));
+
+	/* Burst size is only needed in SuperSpeed mode */
+	if (dwc->gadget.speed == USB_SPEED_SUPER) {
+		u32 burst = dep->endpoint.maxburst - 1;
+
+		params.param0 |= DWC3_DEPCFG_BURST_SIZE(burst);
+	}
+
+	if (ignore)
+		params.param0 |= DWC3_DEPCFG_IGN_SEQ_NUM;
 
 	params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN
 		| DWC3_DEPCFG_XFER_NOT_READY_EN;
@@ -498,7 +511,8 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep)
  */
 static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
 		const struct usb_endpoint_descriptor *desc,
-		const struct usb_ss_ep_comp_descriptor *comp_desc)
+		const struct usb_ss_ep_comp_descriptor *comp_desc,
+		bool ignore)
 {
 	struct dwc3		*dwc = dep->dwc;
 	u32			reg;
@@ -510,7 +524,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
 			return ret;
 	}
 
-	ret = dwc3_gadget_set_ep_config(dwc, dep, desc, comp_desc);
+	ret = dwc3_gadget_set_ep_config(dwc, dep, desc, comp_desc, ignore);
 	if (ret)
 		return ret;
 
@@ -558,27 +572,7 @@ static void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep)
 	if (!list_empty(&dep->req_queued)) {
 		dwc3_stop_active_transfer(dwc, dep->number);
 
-		/*
-		 * NOTICE: We are violating what the Databook says about the
-		 * EndTransfer command. Ideally we would _always_ wait for the
-		 * EndTransfer Command Completion IRQ, but that's causing too
-		 * much trouble synchronizing between us and gadget driver.
-		 *
-		 * We have discussed this with the IP Provider and it was
-		 * suggested to giveback all requests here, but give HW some
-		 * extra time to synchronize with the interconnect. We're using
-		 * an arbitraty 100us delay for that.
-		 *
-		 * Note also that a similar handling was tested by Synopsys
-		 * (thanks a lot Paul) and nothing bad has come out of it.
-		 * In short, what we're doing is:
-		 *
-		 * - Issue EndTransfer WITH CMDIOC bit set
-		 * - Wait 100us
-		 * - giveback all requests to gadget driver
-		 */
-		udelay(100);
-
+		/* - giveback all requests to gadget driver */
 		while (!list_empty(&dep->req_queued)) {
 			req = next_request(&dep->req_queued);
 
@@ -657,6 +651,12 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
 	dep = to_dwc3_ep(ep);
 	dwc = dep->dwc;
 
+	if (dep->flags & DWC3_EP_ENABLED) {
+		dev_WARN_ONCE(dwc->dev, true, "%s is already enabled\n",
+				dep->name);
+		return 0;
+	}
+
 	switch (usb_endpoint_type(desc)) {
 	case USB_ENDPOINT_XFER_CONTROL:
 		strlcat(dep->name, "-control", sizeof(dep->name));
@@ -674,16 +674,10 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
 		dev_err(dwc->dev, "invalid endpoint transfer type\n");
 	}
 
-	if (dep->flags & DWC3_EP_ENABLED) {
-		dev_WARN_ONCE(dwc->dev, true, "%s is already enabled\n",
-				dep->name);
-		return 0;
-	}
-
 	dev_vdbg(dwc->dev, "Enabling %s\n", dep->name);
 
 	spin_lock_irqsave(&dwc->lock, flags);
-	ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc);
+	ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc, false);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return ret;
@@ -1026,6 +1020,7 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
 	if (list_empty(&dep->request_list)) {
 		dev_vdbg(dwc->dev, "ISOC ep %s run out for requests.\n",
 			dep->name);
+		dep->flags |= DWC3_EP_PENDING_REQUEST;
 		return;
 	}
 
@@ -1089,13 +1084,21 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 	if (dep->flags & DWC3_EP_PENDING_REQUEST) {
 		int	ret;
 
-		ret = __dwc3_gadget_kick_transfer(dep, 0, true);
-		if (ret && ret != -EBUSY) {
-			struct dwc3	*dwc = dep->dwc;
+		/*
+		 * If xfernotready is already elapsed and it is a case
+		 * of isoc transfer, then issue END TRANSFER, so that
+		 * you can receive xfernotready again and can have
+		 * notion of current microframe.
+		 */
+		if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
+			dwc3_stop_active_transfer(dwc, dep->number);
+			return 0;
+		}
 
+		ret = __dwc3_gadget_kick_transfer(dep, 0, true);
+		if (ret && ret != -EBUSY)
 			dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
 					dep->name);
-		}
 	}
 
 	/*
@@ -1104,16 +1107,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 	 *    core may not see the modified TRB(s).
 	 */
 	if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
-			(dep->flags & DWC3_EP_BUSY)) {
+			(dep->flags & DWC3_EP_BUSY) &&
+			!(dep->flags & DWC3_EP_MISSED_ISOC)) {
 		WARN_ON_ONCE(!dep->resource_index);
 		ret = __dwc3_gadget_kick_transfer(dep, dep->resource_index,
 				false);
-		if (ret && ret != -EBUSY) {
-			struct dwc3	*dwc = dep->dwc;
-
+		if (ret && ret != -EBUSY)
 			dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
 					dep->name);
-		}
 	}
 
 	/*
@@ -1518,14 +1519,14 @@ static int dwc3_gadget_start(struct usb_gadget *g,
 	dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
 
 	dep = dwc->eps[0];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		goto err0;
 	}
 
 	dep = dwc->eps[1];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		goto err1;
@@ -1750,7 +1751,7 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
 		int		i;
 
 		for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
-			struct dwc3_ep	*dep = dwc->eps[i];
+			dep = dwc->eps[i];
 
 			if (!(dep->flags & DWC3_EP_ENABLED))
 				continue;
@@ -1877,6 +1878,25 @@ static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum)
 	if (!dep->resource_index)
 		return;
 
+	/*
+	 * NOTICE: We are violating what the Databook says about the
+	 * EndTransfer command. Ideally we would _always_ wait for the
+	 * EndTransfer Command Completion IRQ, but that's causing too
+	 * much trouble synchronizing between us and gadget driver.
+	 *
+	 * We have discussed this with the IP Provider and it was
+	 * suggested to giveback all requests here, but give HW some
+	 * extra time to synchronize with the interconnect. We're using
+	 * an arbitraty 100us delay for that.
+	 *
+	 * Note also that a similar handling was tested by Synopsys
+	 * (thanks a lot Paul) and nothing bad has come out of it.
+	 * In short, what we're doing is:
+	 *
+	 * - Issue EndTransfer WITH CMDIOC bit set
+	 * - Wait 100us
+	 */
+
 	cmd = DWC3_DEPCMD_ENDTRANSFER;
 	cmd |= DWC3_DEPCMD_HIPRI_FORCERM | DWC3_DEPCMD_CMDIOC;
 	cmd |= DWC3_DEPCMD_PARAM(dep->resource_index);
@@ -1884,6 +1904,8 @@ static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum)
 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, &params);
 	WARN_ON_ONCE(ret);
 	dep->resource_index = 0;
+
+	udelay(100);
 }
 
 static void dwc3_stop_active_transfers(struct dwc3 *dwc)
@@ -2141,14 +2163,14 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
 	}
 
 	dep = dwc->eps[0];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, true);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		return;
 	}
 
 	dep = dwc->eps[1];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, true);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		return;
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index ee0ebacf822..e426ad626d7 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -450,7 +450,7 @@ static int dbgp_ehci_startup(void)
 	writel(FLAG_CF, &ehci_regs->configured_flag);
 
 	/* Wait until the controller is no longer halted */
-	loop = 10;
+	loop = 1000;
 	do {
 		status = readl(&ehci_regs->status);
 		if (!(status & STS_HALT))
@@ -491,7 +491,7 @@ static int ehci_wait_for_port(int port);
  * Return -ENODEV for any general failure
  * Return -EIO if wait for port fails
  */
-int dbgp_external_startup(void)
+static int _dbgp_external_startup(void)
 {
 	int devnum;
 	struct usb_debug_descriptor dbgp_desc;
@@ -613,6 +613,11 @@ err:
 		goto try_again;
 	return -ENODEV;
 }
+
+int dbgp_external_startup(struct usb_hcd *hcd)
+{
+	return xen_dbgp_external_startup(hcd) ?: _dbgp_external_startup();
+}
 EXPORT_SYMBOL_GPL(dbgp_external_startup);
 
 static int ehci_reset_port(int port)
@@ -804,7 +809,7 @@ try_next_port:
 		dbgp_ehci_status("ehci skip - already configured");
 	}
 
-	ret = dbgp_external_startup();
+	ret = _dbgp_external_startup();
 	if (ret == -EIO)
 		goto next_debug_port;
 
@@ -934,7 +939,7 @@ static void early_dbgp_write(struct console *con, const char *str, u32 n)
 		ctrl = readl(&ehci_debug->control);
 		if (!(ctrl & DBGP_ENABLED)) {
 			dbgp_not_safe = 1;
-			dbgp_external_startup();
+			_dbgp_external_startup();
 		} else {
 			cmd |= CMD_RUN;
 			writel(cmd, &ehci_regs->command);
@@ -974,10 +979,14 @@ struct console early_dbgp_console = {
 	.index =	-1,
 };
 
-int dbgp_reset_prep(void)
+int dbgp_reset_prep(struct usb_hcd *hcd)
 {
+	int ret = xen_dbgp_reset_prep(hcd);
 	u32 ctrl;
 
+	if (ret)
+		return ret;
+
 	dbgp_not_safe = 1;
 	if (!ehci_debug)
 		return 0;
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 51ab5fd5d46..dfb51a45496 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -154,16 +154,25 @@ config USB_LPC32XX
 
 config USB_ATMEL_USBA
 	tristate "Atmel USBA"
-	select USB_GADGET_DUALSPEED
 	depends on AVR32 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
 	help
 	  USBA is the integrated high-speed USB Device controller on
 	  the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
 
+config USB_BCM63XX_UDC
+	tristate "Broadcom BCM63xx Peripheral Controller"
+	depends on BCM63XX
+	help
+	   Many Broadcom BCM63xx chipsets (such as the BCM6328) have a
+	   high speed USB Device Port with support for four fixed endpoints
+	   (plus endpoint zero).
+
+	   Say "y" to link the driver statically, or "m" to build a
+	   dynamically linked module called "bcm63xx_udc".
+
 config USB_FSL_USB2
 	tristate "Freescale Highspeed USB DR Peripheral Controller"
 	depends on FSL_SOC || ARCH_MXC
-	select USB_GADGET_DUALSPEED
 	select USB_FSL_MPH_DR_OF if OF
 	help
 	   Some of Freescale PowerPC and i.MX processors have a High Speed
@@ -179,7 +188,6 @@ config USB_FSL_USB2
 config USB_FUSB300
 	tristate "Faraday FUSB300 USB Peripheral Controller"
 	depends on !PHYS_ADDR_T_64BIT
-	select USB_GADGET_DUALSPEED
 	help
 	   Faraday usb device controller FUSB300 driver
 
@@ -227,7 +235,6 @@ config USB_PXA25X_SMALL
 
 config USB_R8A66597
 	tristate "Renesas R8A66597 USB Peripheral Controller"
-	select USB_GADGET_DUALSPEED
 	help
 	   R8A66597 is a discrete USB host and peripheral controller chip that
 	   supports both full and high speed USB 2.0 data transfers.
@@ -240,7 +247,6 @@ config USB_R8A66597
 config USB_RENESAS_USBHS_UDC
 	tristate 'Renesas USBHS controller'
 	depends on USB_RENESAS_USBHS
-	select USB_GADGET_DUALSPEED
 	help
 	   Renesas USBHS is a discrete USB host and peripheral controller chip
 	   that supports both full and high speed USB 2.0 data transfers.
@@ -268,7 +274,6 @@ config USB_PXA27X
 config USB_S3C_HSOTG
 	tristate "S3C HS/OtG USB Device controller"
 	depends on S3C_DEV_USB_HSOTG
-	select USB_GADGET_DUALSPEED
 	help
 	  The Samsung S3C64XX USB2.0 high-speed gadget controller
 	  integrated into the S3C64XX series SoC.
@@ -305,7 +310,6 @@ config USB_S3C2410_DEBUG
 config USB_S3C_HSUDC
 	tristate "S3C2416, S3C2443 and S3C2450 USB Device Controller"
 	depends on ARCH_S3C24XX
-	select USB_GADGET_DUALSPEED
 	help
 	  Samsung's S3C2416, S3C2443 and S3C2450 is an ARM9 based SoC
 	  integrated with dual speed USB 2.0 device controller. It has
@@ -315,7 +319,6 @@ config USB_S3C_HSUDC
 
 config USB_MV_UDC
 	tristate "Marvell USB2.0 Device Controller"
-	select USB_GADGET_DUALSPEED
 	help
 	  Marvell Socs (including PXA and MMP series) include a high speed
 	  USB2.0 OTG controller, which can be configured as high speed or
@@ -338,14 +341,12 @@ config USB_MV_U3D
 config USB_GADGET_MUSB_HDRC
 	tristate "Inventra HDRC USB Peripheral (TI, ADI, ...)"
 	depends on USB_MUSB_HDRC
-	select USB_GADGET_DUALSPEED
 	help
 	  This OTG-capable silicon IP is used in dual designs including
 	  the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin
 
 config USB_M66592
 	tristate "Renesas M66592 USB Peripheral Controller"
-	select USB_GADGET_DUALSPEED
 	help
 	   M66592 is a discrete USB peripheral controller chip that
 	   supports both full and high speed USB 2.0 data transfers.
@@ -362,7 +363,6 @@ config USB_M66592
 config USB_AMD5536UDC
 	tristate "AMD5536 UDC"
 	depends on PCI
-	select USB_GADGET_DUALSPEED
 	help
 	   The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
 	   It is a USB Highspeed DMA capable USB device controller. Beside ep0
@@ -389,7 +389,6 @@ config USB_FSL_QE
 
 config USB_NET2272
 	tristate "PLX NET2272"
-	select USB_GADGET_DUALSPEED
 	help
 	  PLX NET2272 is a USB peripheral controller which supports
 	  both full and high speed USB 2.0 data transfers.
@@ -413,7 +412,6 @@ config USB_NET2272_DMA
 config USB_NET2280
 	tristate "NetChip 228x"
 	depends on PCI
-	select USB_GADGET_DUALSPEED
 	help
 	   NetChip 2280 / 2282 is a PCI based USB peripheral controller which
 	   supports both full and high speed USB 2.0 data transfers.
@@ -443,7 +441,6 @@ config USB_GOKU
 config USB_EG20T
 	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7831) UDC"
 	depends on PCI
-	select USB_GADGET_DUALSPEED
 	help
 	  This is a USB device driver for EG20T PCH.
 	  EG20T PCH is the platform controller hub that is used in Intel's
@@ -470,8 +467,6 @@ config USB_EG20T
 config USB_DUMMY_HCD
 	tristate "Dummy HCD (DEVELOPMENT)"
 	depends on USB=y || (USB=m && USB_GADGET=m)
-	select USB_GADGET_DUALSPEED
-	select USB_GADGET_SUPERSPEED
 	help
 	  This host controller driver emulates USB, looping all data transfer
 	  requests back to a USB "gadget driver" in the same host.  The host
@@ -496,18 +491,15 @@ config USB_DUMMY_HCD
 
 endmenu
 
-# Selected by UDC drivers that support high-speed operation.
-config USB_GADGET_DUALSPEED
-	bool
-
-# Selected by UDC drivers that support super-speed opperation
-config USB_GADGET_SUPERSPEED
-	bool
-	depends on USB_GADGET_DUALSPEED
-
 #
 # USB Gadget Drivers
 #
+
+# composite based drivers
+config USB_LIBCOMPOSITE
+	tristate
+	depends on USB_GADGET
+
 choice
 	tristate "USB Gadget Drivers"
 	default USB_ETH
@@ -531,6 +523,7 @@ choice
 
 config USB_ZERO
 	tristate "Gadget Zero (DEVELOPMENT)"
+	select USB_LIBCOMPOSITE
 	help
 	  Gadget Zero is a two-configuration device.  It either sinks and
 	  sources bulk data; or it loops back a configurable number of
@@ -564,8 +557,9 @@ config USB_ZERO_HNPTEST
 	  one serve as the USB host instead (in the "B-Host" role).
 
 config USB_AUDIO
-	tristate "Audio Gadget (EXPERIMENTAL)"
+	tristate "Audio Gadget"
 	depends on SND
+	select USB_LIBCOMPOSITE
 	select SND_PCM
 	help
 	  This Gadget Audio driver is compatible with USB Audio Class
@@ -594,6 +588,7 @@ config GADGET_UAC1
 config USB_ETH
 	tristate "Ethernet Gadget (with CDC Ethernet support)"
 	depends on NET
+	select USB_LIBCOMPOSITE
 	select CRC32
 	help
 	  This driver implements Ethernet style communication, in one of
@@ -629,6 +624,7 @@ config USB_ETH
 config USB_ETH_RNDIS
 	bool "RNDIS support"
 	depends on USB_ETH
+	select USB_LIBCOMPOSITE
 	default y
 	help
 	   Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
@@ -647,6 +643,7 @@ config USB_ETH_RNDIS
 config USB_ETH_EEM
        bool "Ethernet Emulation Model (EEM) support"
        depends on USB_ETH
+	select USB_LIBCOMPOSITE
        default n
        help
          CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
@@ -663,6 +660,7 @@ config USB_ETH_EEM
 config USB_G_NCM
 	tristate "Network Control Model (NCM) support"
 	depends on NET
+	select USB_LIBCOMPOSITE
 	select CRC32
 	help
 	  This driver implements USB CDC NCM subclass standard. NCM is
@@ -674,8 +672,7 @@ config USB_G_NCM
 	  dynamically linked module called "g_ncm".
 
 config USB_GADGETFS
-	tristate "Gadget Filesystem (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Gadget Filesystem"
 	help
 	  This driver provides a filesystem based API that lets user mode
 	  programs implement a single-configuration USB device, including
@@ -683,15 +680,12 @@ config USB_GADGETFS
 	  All endpoints, transfer speeds, and transfer types supported by
 	  the hardware are available, through read() and write() calls.
 
-	  Currently, this option is still labelled as EXPERIMENTAL because
-	  of existing race conditions in the underlying in-kernel AIO core.
-
 	  Say "y" to link the driver statically, or "m" to build a
 	  dynamically linked module called "gadgetfs".
 
 config USB_FUNCTIONFS
-	tristate "Function Filesystem (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Function Filesystem"
+	select USB_LIBCOMPOSITE
 	select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS)
 	help
 	  The Function Filesystem (FunctionFS) lets one create USB
@@ -755,6 +749,7 @@ config USB_FILE_STORAGE_TEST
 config USB_MASS_STORAGE
 	tristate "Mass Storage Gadget"
 	depends on BLOCK
+	select USB_LIBCOMPOSITE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
 	  As its storage repository it can use a regular file or a block
@@ -770,6 +765,7 @@ config USB_MASS_STORAGE
 config USB_GADGET_TARGET
 	tristate "USB Gadget Target Fabric Module"
 	depends on TARGET_CORE
+	select USB_LIBCOMPOSITE
 	help
 	  This fabric is an USB gadget. Two USB protocols are supported that is
 	  BBB or BOT (Bulk Only Transport) and UAS (USB Attached SCSI). BOT is
@@ -779,6 +775,7 @@ config USB_GADGET_TARGET
 
 config USB_G_SERIAL
 	tristate "Serial Gadget (with CDC ACM and CDC OBEX support)"
+	select USB_LIBCOMPOSITE
 	help
 	  The Serial Gadget talks to the Linux-USB generic serial driver.
 	  This driver supports a CDC-ACM module option, which can be used
@@ -797,8 +794,9 @@ config USB_G_SERIAL
 	  make MS-Windows work with CDC ACM.
 
 config USB_MIDI_GADGET
-	tristate "MIDI Gadget (EXPERIMENTAL)"
-	depends on SND && EXPERIMENTAL
+	tristate "MIDI Gadget"
+	depends on SND
+	select USB_LIBCOMPOSITE
 	select SND_RAWMIDI
 	help
 	  The MIDI Gadget acts as a USB Audio device, with one MIDI
@@ -812,6 +810,7 @@ config USB_MIDI_GADGET
 
 config USB_G_PRINTER
 	tristate "Printer Gadget"
+	select USB_LIBCOMPOSITE
 	help
 	  The Printer Gadget channels data between the USB host and a
 	  userspace program driving the print engine. The user space
@@ -828,6 +827,7 @@ config USB_G_PRINTER
 config USB_CDC_COMPOSITE
 	tristate "CDC Composite Device (Ethernet and ACM)"
 	depends on NET
+	select USB_LIBCOMPOSITE
 	help
 	  This driver provides two functions in one configuration:
 	  a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link.
@@ -842,6 +842,7 @@ config USB_CDC_COMPOSITE
 config USB_G_NOKIA
 	tristate "Nokia composite gadget"
 	depends on PHONET
+	select USB_LIBCOMPOSITE
 	help
 	  The Nokia composite gadget provides support for acm, obex
 	  and phonet in only one composite gadget driver.
@@ -852,6 +853,7 @@ config USB_G_NOKIA
 config USB_G_ACM_MS
 	tristate "CDC Composite Device (ACM and mass storage)"
 	depends on BLOCK
+	select USB_LIBCOMPOSITE
 	help
 	  This driver provides two functions in one configuration:
 	  a mass storage, and a CDC ACM (serial port) link.
@@ -860,9 +862,10 @@ config USB_G_ACM_MS
 	  dynamically linked module called "g_acm_ms".
 
 config USB_G_MULTI
-	tristate "Multifunction Composite Gadget (EXPERIMENTAL)"
+	tristate "Multifunction Composite Gadget"
 	depends on BLOCK && NET
 	select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS
+	select USB_LIBCOMPOSITE
 	help
 	  The Multifunction Composite Gadget provides Ethernet (RNDIS
 	  and/or CDC Ethernet), mass storage and ACM serial link
@@ -903,6 +906,7 @@ config USB_G_MULTI_CDC
 
 config USB_G_HID
 	tristate "HID Gadget"
+	select USB_LIBCOMPOSITE
 	help
 	  The HID gadget driver provides generic emulation of USB
 	  Human Interface Devices (HID).
@@ -913,8 +917,10 @@ config USB_G_HID
 	  Say "y" to link the driver statically, or "m" to build a
 	  dynamically linked module called "g_hid".
 
+# Standalone / single function gadgets
 config USB_G_DBGP
 	tristate "EHCI Debug Device Gadget"
+	select USB_LIBCOMPOSITE
 	help
 	  This gadget emulates an EHCI Debug device. This is useful when you want
 	  to interact with an EHCI Debug Port.
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 3fd8cd09d2c..307be5fa824 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -4,6 +4,9 @@
 ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG
 
 obj-$(CONFIG_USB_GADGET)	+= udc-core.o
+obj-$(CONFIG_USB_LIBCOMPOSITE)	+= libcomposite.o
+libcomposite-y			:= usbstring.o config.o epautoconf.o
+libcomposite-y			+= composite.o
 obj-$(CONFIG_USB_DUMMY_HCD)	+= dummy_hcd.o
 obj-$(CONFIG_USB_NET2272)	+= net2272.o
 obj-$(CONFIG_USB_NET2280)	+= net2280.o
@@ -16,6 +19,7 @@ obj-$(CONFIG_USB_OMAP)		+= omap_udc.o
 obj-$(CONFIG_USB_S3C2410)	+= s3c2410_udc.o
 obj-$(CONFIG_USB_AT91)		+= at91_udc.o
 obj-$(CONFIG_USB_ATMEL_USBA)	+= atmel_usba_udc.o
+obj-$(CONFIG_USB_BCM63XX_UDC)	+= bcm63xx_udc.o
 obj-$(CONFIG_USB_FSL_USB2)	+= fsl_usb2_udc.o
 fsl_usb2_udc-y			:= fsl_udc_core.o
 fsl_usb2_udc-$(CONFIG_ARCH_MXC)	+= fsl_mxc_udc.o
diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c
index 75b8a691fd0..5a7f289805f 100644
--- a/drivers/usb/gadget/acm_ms.c
+++ b/drivers/usb/gadget/acm_ms.c
@@ -15,7 +15,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
+#include <linux/module.h>
 
 #include "u_serial.h"
 
@@ -41,15 +41,12 @@
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
 
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
 #include "u_serial.c"
 #include "f_acm.c"
 #include "f_mass_storage.c"
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
@@ -89,17 +86,11 @@ static const struct usb_descriptor_header *otg_desc[] = {
 	NULL,
 };
 
-
 /* string IDs are assigned dynamically */
-
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -157,7 +148,6 @@ static struct usb_configuration acm_ms_config_driver = {
 
 static int __init acm_ms_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	struct usb_gadget	*gadget = cdev->gadget;
 	int			status;
 	void			*retp;
@@ -174,44 +164,22 @@ static int __init acm_ms_bind(struct usb_composite_dev *cdev)
 		goto fail0;
 	}
 
-	/* set bcdDevice */
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0) {
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	} else {
-		WARNING(cdev, "controller '%s' not recognized; trying %s\n",
-				gadget->name,
-				acm_ms_config_driver.label);
-		device_desc.bcdDevice =
-			cpu_to_le16(0x0300 | 0x0099);
-	}
-
 	/*
 	 * Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
-
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail1;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail1;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register our configuration */
 	status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config);
 	if (status < 0)
 		goto fail1;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
 			DRIVER_DESC);
 	fsg_common_put(&fsg_common);
@@ -232,11 +200,12 @@ static int __exit acm_ms_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver acm_ms_driver = {
+static __refdata struct usb_composite_driver acm_ms_driver = {
 	.name		= "g_acm_ms",
 	.dev		= &device_desc,
 	.max_speed	= USB_SPEED_SUPER,
 	.strings	= dev_strings,
+	.bind		= acm_ms_bind,
 	.unbind		= __exit_p(acm_ms_unbind),
 };
 
@@ -246,7 +215,7 @@ MODULE_LICENSE("GPL v2");
 
 static int __init init(void)
 {
-	return usb_composite_probe(&acm_ms_driver, acm_ms_bind);
+	return usb_composite_probe(&acm_ms_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 187d21181cd..fc0ec5e0d58 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -1401,7 +1401,7 @@ static int udc_wakeup(struct usb_gadget *gadget)
 }
 
 static int amd5536_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int amd5536_stop(struct usb_gadget_driver *driver);
 /* gadget operations */
 static const struct usb_gadget_ops udc_ops = {
@@ -1914,7 +1914,7 @@ static int setup_ep0(struct udc *dev)
 
 /* Called by gadget driver to register itself */
 static int amd5536_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct udc		*dev = udc;
 	int			retval;
@@ -1932,7 +1932,7 @@ static int amd5536_start(struct usb_gadget_driver *driver,
 	dev->driver = driver;
 	dev->gadget.dev.driver = &driver->driver;
 
-	retval = bind(&dev->gadget);
+	retval = bind(&dev->gadget, driver);
 
 	/* Some gadget drivers use both ep0 directions.
 	 * NOTE: to gadget driver, ep0 is just one endpoint...
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index c9e66dfb02e..89d90b5fb78 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -469,14 +469,13 @@ static int at91_ep_enable(struct usb_ep *_ep,
 				const struct usb_endpoint_descriptor *desc)
 {
 	struct at91_ep	*ep = container_of(_ep, struct at91_ep, ep);
-	struct at91_udc	*udc = ep->udc;
+	struct at91_udc *udc;
 	u16		maxpacket;
 	u32		tmp;
 	unsigned long	flags;
 
 	if (!_ep || !ep
-			|| !desc || ep->ep.desc
-			|| _ep->name == ep0name
+			|| !desc || _ep->name == ep0name
 			|| desc->bDescriptorType != USB_DT_ENDPOINT
 			|| (maxpacket = usb_endpoint_maxp(desc)) == 0
 			|| maxpacket > ep->maxpacket) {
@@ -484,6 +483,7 @@ static int at91_ep_enable(struct usb_ep *_ep,
 		return -EINVAL;
 	}
 
+	udc = ep->udc;
 	if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN) {
 		DBG("bogus device state\n");
 		return -ESHUTDOWN;
@@ -530,7 +530,6 @@ ok:
 	tmp |= AT91_UDP_EPEDS;
 	__raw_writel(tmp, ep->creg);
 
-	ep->ep.desc = desc;
 	ep->ep.maxpacket = maxpacket;
 
 	/*
@@ -1635,7 +1634,6 @@ static int at91_start(struct usb_gadget *gadget,
 	udc->driver = driver;
 	udc->gadget.dev.driver = &driver->driver;
 	udc->gadget.dev.of_node = udc->pdev->dev.of_node;
-	dev_set_drvdata(&udc->gadget.dev, &driver->driver);
 	udc->enabled = 1;
 	udc->selfpowered = 1;
 
@@ -1656,7 +1654,6 @@ static int at91_stop(struct usb_gadget *gadget,
 	spin_unlock_irqrestore(&udc->lock, flags);
 
 	udc->gadget.dev.driver = NULL;
-	dev_set_drvdata(&udc->gadget.dev, NULL);
 	udc->driver = NULL;
 
 	DBG("unbound from %s\n", driver->driver.name);
@@ -1703,7 +1700,7 @@ static int __devinit at91udc_probe(struct platform_device *pdev)
 	int		retval;
 	struct resource	*res;
 
-	if (!dev->platform_data) {
+	if (!dev->platform_data && !pdev->dev.of_node) {
 		/* small (so we copy it) but critical! */
 		DBG("missing platform_data\n");
 		return -ENODEV;
diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
index 98899244860..231b0efe8fd 100644
--- a/drivers/usb/gadget/audio.c
+++ b/drivers/usb/gadget/audio.c
@@ -12,35 +12,21 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
+#include <linux/module.h>
+#include <linux/usb/composite.h>
 
+#include "gadget_chips.h"
 #define DRIVER_DESC		"Linux USB Audio Gadget"
 #define DRIVER_VERSION		"Feb 2, 2012"
 
-/*-------------------------------------------------------------------------*/
-
-/*
- * Kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
+USB_GADGET_COMPOSITE_OPTIONS();
 
 /* string IDs are assigned dynamically */
 
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -149,39 +135,18 @@ static struct usb_configuration audio_config_driver = {
 
 static int __init audio_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	int			status;
 
-	gcnum = usb_gadget_controller_number(cdev->gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	else {
-		ERROR(cdev, "controller '%s' not recognized; trying %s\n",
-			cdev->gadget->name,
-			audio_config_driver.label);
-		device_desc.bcdDevice =
-			__constant_cpu_to_le16(0x0300 | 0x0099);
-	}
-
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		cdev->gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	status = usb_add_config(cdev, &audio_config_driver, audio_do_config);
 	if (status < 0)
 		goto fail;
+	usb_composite_overwrite_options(cdev, &coverwrite);
 
 	INFO(cdev, "%s, version: %s\n", DRIVER_DESC, DRIVER_VERSION);
 	return 0;
@@ -198,17 +163,18 @@ static int __exit audio_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver audio_driver = {
+static __refdata struct usb_composite_driver audio_driver = {
 	.name		= "g_audio",
 	.dev		= &device_desc,
 	.strings	= audio_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= audio_bind,
 	.unbind		= __exit_p(audio_unbind),
 };
 
 static int __init init(void)
 {
-	return usb_composite_probe(&audio_driver, audio_bind);
+	return usb_composite_probe(&audio_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c
new file mode 100644
index 00000000000..9ca792224cd
--- /dev/null
+++ b/drivers/usb/gadget/bcm63xx_udc.c
@@ -0,0 +1,2464 @@
+/*
+ * bcm63xx_udc.c -- BCM63xx UDC high/full speed USB device controller
+ *
+ * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com>
+ * Copyright (C) 2012 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <linux/bug.h>
+#include <linux/clk.h>
+#include <linux/compiler.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/kconfig.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/workqueue.h>
+
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_iudma.h>
+#include <bcm63xx_dev_usb_usbd.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+
+#define DRV_MODULE_NAME		"bcm63xx_udc"
+
+static const char bcm63xx_ep0name[] = "ep0";
+static const char *const bcm63xx_ep_name[] = {
+	bcm63xx_ep0name,
+	"ep1in-bulk", "ep2out-bulk", "ep3in-int", "ep4out-int",
+};
+
+static bool use_fullspeed;
+module_param(use_fullspeed, bool, S_IRUGO);
+MODULE_PARM_DESC(use_fullspeed, "true for fullspeed only");
+
+/*
+ * RX IRQ coalescing options:
+ *
+ * false (default) - one IRQ per DATAx packet.  Slow but reliable.  The
+ * driver is able to pass the "testusb" suite and recover from conditions like:
+ *
+ *   1) Device queues up a 2048-byte RX IUDMA transaction on an OUT bulk ep
+ *   2) Host sends 512 bytes of data
+ *   3) Host decides to reconfigure the device and sends SET_INTERFACE
+ *   4) Device shuts down the endpoint and cancels the RX transaction
+ *
+ * true - one IRQ per transfer, for transfers <= 2048B.  Generates
+ * considerably fewer IRQs, but error recovery is less robust.  Does not
+ * reliably pass "testusb".
+ *
+ * TX always uses coalescing, because we can cancel partially complete TX
+ * transfers by repeatedly flushing the FIFO.  The hardware doesn't allow
+ * this on RX.
+ */
+static bool irq_coalesce;
+module_param(irq_coalesce, bool, S_IRUGO);
+MODULE_PARM_DESC(irq_coalesce, "take one IRQ per RX transfer");
+
+#define BCM63XX_NUM_EP			5
+#define BCM63XX_NUM_IUDMA		6
+#define BCM63XX_NUM_FIFO_PAIRS		3
+
+#define IUDMA_RESET_TIMEOUT_US		10000
+
+#define IUDMA_EP0_RXCHAN		0
+#define IUDMA_EP0_TXCHAN		1
+
+#define IUDMA_MAX_FRAGMENT		2048
+#define BCM63XX_MAX_CTRL_PKT		64
+
+#define BCMEP_CTRL			0x00
+#define BCMEP_ISOC			0x01
+#define BCMEP_BULK			0x02
+#define BCMEP_INTR			0x03
+
+#define BCMEP_OUT			0x00
+#define BCMEP_IN			0x01
+
+#define BCM63XX_SPD_FULL		1
+#define BCM63XX_SPD_HIGH		0
+
+#define IUDMA_DMAC_OFFSET		0x200
+#define IUDMA_DMAS_OFFSET		0x400
+
+enum bcm63xx_ep0_state {
+	EP0_REQUEUE,
+	EP0_IDLE,
+	EP0_IN_DATA_PHASE_SETUP,
+	EP0_IN_DATA_PHASE_COMPLETE,
+	EP0_OUT_DATA_PHASE_SETUP,
+	EP0_OUT_DATA_PHASE_COMPLETE,
+	EP0_OUT_STATUS_PHASE,
+	EP0_IN_FAKE_STATUS_PHASE,
+	EP0_SHUTDOWN,
+};
+
+static const char __maybe_unused bcm63xx_ep0_state_names[][32] = {
+	"REQUEUE",
+	"IDLE",
+	"IN_DATA_PHASE_SETUP",
+	"IN_DATA_PHASE_COMPLETE",
+	"OUT_DATA_PHASE_SETUP",
+	"OUT_DATA_PHASE_COMPLETE",
+	"OUT_STATUS_PHASE",
+	"IN_FAKE_STATUS_PHASE",
+	"SHUTDOWN",
+};
+
+/**
+ * struct iudma_ch_cfg - Static configuration for an IUDMA channel.
+ * @ep_num: USB endpoint number.
+ * @n_bds: Number of buffer descriptors in the ring.
+ * @ep_type: Endpoint type (control, bulk, interrupt).
+ * @dir: Direction (in, out).
+ * @n_fifo_slots: Number of FIFO entries to allocate for this channel.
+ * @max_pkt_hs: Maximum packet size in high speed mode.
+ * @max_pkt_fs: Maximum packet size in full speed mode.
+ */
+struct iudma_ch_cfg {
+	int				ep_num;
+	int				n_bds;
+	int				ep_type;
+	int				dir;
+	int				n_fifo_slots;
+	int				max_pkt_hs;
+	int				max_pkt_fs;
+};
+
+static const struct iudma_ch_cfg iudma_defaults[] = {
+
+	/* This controller was designed to support a CDC/RNDIS application.
+	   It may be possible to reconfigure some of the endpoints, but
+	   the hardware limitations (FIFO sizing and number of DMA channels)
+	   may significantly impact flexibility and/or stability.  Change
+	   these values at your own risk.
+
+	      ep_num       ep_type           n_fifo_slots    max_pkt_fs
+	idx      |  n_bds     |         dir       |  max_pkt_hs  |
+	 |       |    |       |          |        |      |       |       */
+	[0] = { -1,   4, BCMEP_CTRL, BCMEP_OUT,  32,    64,     64 },
+	[1] = {  0,   4, BCMEP_CTRL, BCMEP_OUT,  32,    64,     64 },
+	[2] = {  2,  16, BCMEP_BULK, BCMEP_OUT, 128,   512,     64 },
+	[3] = {  1,  16, BCMEP_BULK, BCMEP_IN,  128,   512,     64 },
+	[4] = {  4,   4, BCMEP_INTR, BCMEP_OUT,  32,    64,     64 },
+	[5] = {  3,   4, BCMEP_INTR, BCMEP_IN,   32,    64,     64 },
+};
+
+struct bcm63xx_udc;
+
+/**
+ * struct iudma_ch - Represents the current state of a single IUDMA channel.
+ * @ch_idx: IUDMA channel index (0 to BCM63XX_NUM_IUDMA-1).
+ * @ep_num: USB endpoint number.  -1 for ep0 RX.
+ * @enabled: Whether bcm63xx_ep_enable() has been called.
+ * @max_pkt: "Chunk size" on the USB interface.  Based on interface speed.
+ * @is_tx: true for TX, false for RX.
+ * @bep: Pointer to the associated endpoint.  NULL for ep0 RX.
+ * @udc: Reference to the device controller.
+ * @read_bd: Next buffer descriptor to reap from the hardware.
+ * @write_bd: Next BD available for a new packet.
+ * @end_bd: Points to the final BD in the ring.
+ * @n_bds_used: Number of BD entries currently occupied.
+ * @bd_ring: Base pointer to the BD ring.
+ * @bd_ring_dma: Physical (DMA) address of bd_ring.
+ * @n_bds: Total number of BDs in the ring.
+ *
+ * ep0 has two IUDMA channels (IUDMA_EP0_RXCHAN and IUDMA_EP0_TXCHAN), as it is
+ * bidirectional.  The "struct usb_ep" associated with ep0 is for TX (IN)
+ * only.
+ *
+ * Each bulk/intr endpoint has a single IUDMA channel and a single
+ * struct usb_ep.
+ */
+struct iudma_ch {
+	unsigned int			ch_idx;
+	int				ep_num;
+	bool				enabled;
+	int				max_pkt;
+	bool				is_tx;
+	struct bcm63xx_ep		*bep;
+	struct bcm63xx_udc		*udc;
+
+	struct bcm_enet_desc		*read_bd;
+	struct bcm_enet_desc		*write_bd;
+	struct bcm_enet_desc		*end_bd;
+	int				n_bds_used;
+
+	struct bcm_enet_desc		*bd_ring;
+	dma_addr_t			bd_ring_dma;
+	unsigned int			n_bds;
+};
+
+/**
+ * struct bcm63xx_ep - Internal (driver) state of a single endpoint.
+ * @ep_num: USB endpoint number.
+ * @iudma: Pointer to IUDMA channel state.
+ * @ep: USB gadget layer representation of the EP.
+ * @udc: Reference to the device controller.
+ * @queue: Linked list of outstanding requests for this EP.
+ * @halted: 1 if the EP is stalled; 0 otherwise.
+ */
+struct bcm63xx_ep {
+	unsigned int			ep_num;
+	struct iudma_ch			*iudma;
+	struct usb_ep			ep;
+	struct bcm63xx_udc		*udc;
+	struct list_head		queue;
+	unsigned			halted:1;
+};
+
+/**
+ * struct bcm63xx_req - Internal (driver) state of a single request.
+ * @queue: Links back to the EP's request list.
+ * @req: USB gadget layer representation of the request.
+ * @offset: Current byte offset into the data buffer (next byte to queue).
+ * @bd_bytes: Number of data bytes in outstanding BD entries.
+ * @iudma: IUDMA channel used for the request.
+ */
+struct bcm63xx_req {
+	struct list_head		queue;		/* ep's requests */
+	struct usb_request		req;
+	unsigned int			offset;
+	unsigned int			bd_bytes;
+	struct iudma_ch			*iudma;
+};
+
+/**
+ * struct bcm63xx_udc - Driver/hardware private context.
+ * @lock: Spinlock to mediate access to this struct, and (most) HW regs.
+ * @dev: Generic Linux device structure.
+ * @pd: Platform data (board/port info).
+ * @usbd_clk: Clock descriptor for the USB device block.
+ * @usbh_clk: Clock descriptor for the USB host block.
+ * @gadget: USB slave device.
+ * @driver: Driver for USB slave devices.
+ * @usbd_regs: Base address of the USBD/USB20D block.
+ * @iudma_regs: Base address of the USBD's associated IUDMA block.
+ * @bep: Array of endpoints, including ep0.
+ * @iudma: Array of all IUDMA channels used by this controller.
+ * @cfg: USB configuration number, from SET_CONFIGURATION wValue.
+ * @iface: USB interface number, from SET_INTERFACE wIndex.
+ * @alt_iface: USB alt interface number, from SET_INTERFACE wValue.
+ * @ep0_ctrl_req: Request object for bcm63xx_udc-initiated ep0 transactions.
+ * @ep0_ctrl_buf: Data buffer for ep0_ctrl_req.
+ * @ep0state: Current state of the ep0 state machine.
+ * @ep0_wq: Workqueue struct used to wake up the ep0 state machine.
+ * @wedgemap: Bitmap of wedged endpoints.
+ * @ep0_req_reset: USB reset is pending.
+ * @ep0_req_set_cfg: Need to spoof a SET_CONFIGURATION packet.
+ * @ep0_req_set_iface: Need to spoof a SET_INTERFACE packet.
+ * @ep0_req_shutdown: Driver is shutting down; requesting ep0 to halt activity.
+ * @ep0_req_completed: ep0 request has completed; worker has not seen it yet.
+ * @ep0_reply: Pending reply from gadget driver.
+ * @ep0_request: Outstanding ep0 request.
+ * @debugfs_root: debugfs directory: /sys/kernel/debug/<DRV_MODULE_NAME>.
+ * @debugfs_usbd: debugfs file "usbd" for controller state.
+ * @debugfs_iudma: debugfs file "usbd" for IUDMA state.
+ */
+struct bcm63xx_udc {
+	spinlock_t			lock;
+
+	struct device			*dev;
+	struct bcm63xx_usbd_platform_data *pd;
+	struct clk			*usbd_clk;
+	struct clk			*usbh_clk;
+
+	struct usb_gadget		gadget;
+	struct usb_gadget_driver	*driver;
+
+	void __iomem			*usbd_regs;
+	void __iomem			*iudma_regs;
+
+	struct bcm63xx_ep		bep[BCM63XX_NUM_EP];
+	struct iudma_ch			iudma[BCM63XX_NUM_IUDMA];
+
+	int				cfg;
+	int				iface;
+	int				alt_iface;
+
+	struct bcm63xx_req		ep0_ctrl_req;
+	u8				*ep0_ctrl_buf;
+
+	int				ep0state;
+	struct work_struct		ep0_wq;
+
+	unsigned long			wedgemap;
+
+	unsigned			ep0_req_reset:1;
+	unsigned			ep0_req_set_cfg:1;
+	unsigned			ep0_req_set_iface:1;
+	unsigned			ep0_req_shutdown:1;
+
+	unsigned			ep0_req_completed:1;
+	struct usb_request		*ep0_reply;
+	struct usb_request		*ep0_request;
+
+	struct dentry			*debugfs_root;
+	struct dentry			*debugfs_usbd;
+	struct dentry			*debugfs_iudma;
+};
+
+static const struct usb_ep_ops bcm63xx_udc_ep_ops;
+
+/***********************************************************************
+ * Convenience functions
+ ***********************************************************************/
+
+static inline struct bcm63xx_udc *gadget_to_udc(struct usb_gadget *g)
+{
+	return container_of(g, struct bcm63xx_udc, gadget);
+}
+
+static inline struct bcm63xx_ep *our_ep(struct usb_ep *ep)
+{
+	return container_of(ep, struct bcm63xx_ep, ep);
+}
+
+static inline struct bcm63xx_req *our_req(struct usb_request *req)
+{
+	return container_of(req, struct bcm63xx_req, req);
+}
+
+static inline u32 usbd_readl(struct bcm63xx_udc *udc, u32 off)
+{
+	return bcm_readl(udc->usbd_regs + off);
+}
+
+static inline void usbd_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
+{
+	bcm_writel(val, udc->usbd_regs + off);
+}
+
+static inline u32 usb_dma_readl(struct bcm63xx_udc *udc, u32 off)
+{
+	return bcm_readl(udc->iudma_regs + off);
+}
+
+static inline void usb_dma_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
+{
+	bcm_writel(val, udc->iudma_regs + off);
+}
+
+static inline u32 usb_dmac_readl(struct bcm63xx_udc *udc, u32 off)
+{
+	return bcm_readl(udc->iudma_regs + IUDMA_DMAC_OFFSET + off);
+}
+
+static inline void usb_dmac_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
+{
+	bcm_writel(val, udc->iudma_regs + IUDMA_DMAC_OFFSET + off);
+}
+
+static inline u32 usb_dmas_readl(struct bcm63xx_udc *udc, u32 off)
+{
+	return bcm_readl(udc->iudma_regs + IUDMA_DMAS_OFFSET + off);
+}
+
+static inline void usb_dmas_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
+{
+	bcm_writel(val, udc->iudma_regs + IUDMA_DMAS_OFFSET + off);
+}
+
+static inline void set_clocks(struct bcm63xx_udc *udc, bool is_enabled)
+{
+	if (is_enabled) {
+		clk_enable(udc->usbh_clk);
+		clk_enable(udc->usbd_clk);
+		udelay(10);
+	} else {
+		clk_disable(udc->usbd_clk);
+		clk_disable(udc->usbh_clk);
+	}
+}
+
+/***********************************************************************
+ * Low-level IUDMA / FIFO operations
+ ***********************************************************************/
+
+/**
+ * bcm63xx_ep_dma_select - Helper function to set up the init_sel signal.
+ * @udc: Reference to the device controller.
+ * @idx: Desired init_sel value.
+ *
+ * The "init_sel" signal is used as a selection index for both endpoints
+ * and IUDMA channels.  Since these do not map 1:1, the use of this signal
+ * depends on the context.
+ */
+static void bcm63xx_ep_dma_select(struct bcm63xx_udc *udc, int idx)
+{
+	u32 val = usbd_readl(udc, USBD_CONTROL_REG);
+
+	val &= ~USBD_CONTROL_INIT_SEL_MASK;
+	val |= idx << USBD_CONTROL_INIT_SEL_SHIFT;
+	usbd_writel(udc, val, USBD_CONTROL_REG);
+}
+
+/**
+ * bcm63xx_set_stall - Enable/disable stall on one endpoint.
+ * @udc: Reference to the device controller.
+ * @bep: Endpoint on which to operate.
+ * @is_stalled: true to enable stall, false to disable.
+ *
+ * See notes in bcm63xx_update_wedge() regarding automatic clearing of
+ * halt/stall conditions.
+ */
+static void bcm63xx_set_stall(struct bcm63xx_udc *udc, struct bcm63xx_ep *bep,
+	bool is_stalled)
+{
+	u32 val;
+
+	val = USBD_STALL_UPDATE_MASK |
+		(is_stalled ? USBD_STALL_ENABLE_MASK : 0) |
+		(bep->ep_num << USBD_STALL_EPNUM_SHIFT);
+	usbd_writel(udc, val, USBD_STALL_REG);
+}
+
+/**
+ * bcm63xx_fifo_setup - (Re)initialize FIFO boundaries and settings.
+ * @udc: Reference to the device controller.
+ *
+ * These parameters depend on the USB link speed.  Settings are
+ * per-IUDMA-channel-pair.
+ */
+static void bcm63xx_fifo_setup(struct bcm63xx_udc *udc)
+{
+	int is_hs = udc->gadget.speed == USB_SPEED_HIGH;
+	u32 i, val, rx_fifo_slot, tx_fifo_slot;
+
+	/* set up FIFO boundaries and packet sizes; this is done in pairs */
+	rx_fifo_slot = tx_fifo_slot = 0;
+	for (i = 0; i < BCM63XX_NUM_IUDMA; i += 2) {
+		const struct iudma_ch_cfg *rx_cfg = &iudma_defaults[i];
+		const struct iudma_ch_cfg *tx_cfg = &iudma_defaults[i + 1];
+
+		bcm63xx_ep_dma_select(udc, i >> 1);
+
+		val = (rx_fifo_slot << USBD_RXFIFO_CONFIG_START_SHIFT) |
+			((rx_fifo_slot + rx_cfg->n_fifo_slots - 1) <<
+			 USBD_RXFIFO_CONFIG_END_SHIFT);
+		rx_fifo_slot += rx_cfg->n_fifo_slots;
+		usbd_writel(udc, val, USBD_RXFIFO_CONFIG_REG);
+		usbd_writel(udc,
+			    is_hs ? rx_cfg->max_pkt_hs : rx_cfg->max_pkt_fs,
+			    USBD_RXFIFO_EPSIZE_REG);
+
+		val = (tx_fifo_slot << USBD_TXFIFO_CONFIG_START_SHIFT) |
+			((tx_fifo_slot + tx_cfg->n_fifo_slots - 1) <<
+			 USBD_TXFIFO_CONFIG_END_SHIFT);
+		tx_fifo_slot += tx_cfg->n_fifo_slots;
+		usbd_writel(udc, val, USBD_TXFIFO_CONFIG_REG);
+		usbd_writel(udc,
+			    is_hs ? tx_cfg->max_pkt_hs : tx_cfg->max_pkt_fs,
+			    USBD_TXFIFO_EPSIZE_REG);
+
+		usbd_readl(udc, USBD_TXFIFO_EPSIZE_REG);
+	}
+}
+
+/**
+ * bcm63xx_fifo_reset_ep - Flush a single endpoint's FIFO.
+ * @udc: Reference to the device controller.
+ * @ep_num: Endpoint number.
+ */
+static void bcm63xx_fifo_reset_ep(struct bcm63xx_udc *udc, int ep_num)
+{
+	u32 val;
+
+	bcm63xx_ep_dma_select(udc, ep_num);
+
+	val = usbd_readl(udc, USBD_CONTROL_REG);
+	val |= USBD_CONTROL_FIFO_RESET_MASK;
+	usbd_writel(udc, val, USBD_CONTROL_REG);
+	usbd_readl(udc, USBD_CONTROL_REG);
+}
+
+/**
+ * bcm63xx_fifo_reset - Flush all hardware FIFOs.
+ * @udc: Reference to the device controller.
+ */
+static void bcm63xx_fifo_reset(struct bcm63xx_udc *udc)
+{
+	int i;
+
+	for (i = 0; i < BCM63XX_NUM_FIFO_PAIRS; i++)
+		bcm63xx_fifo_reset_ep(udc, i);
+}
+
+/**
+ * bcm63xx_ep_init - Initial (one-time) endpoint initialization.
+ * @udc: Reference to the device controller.
+ */
+static void bcm63xx_ep_init(struct bcm63xx_udc *udc)
+{
+	u32 i, val;
+
+	for (i = 0; i < BCM63XX_NUM_IUDMA; i++) {
+		const struct iudma_ch_cfg *cfg = &iudma_defaults[i];
+
+		if (cfg->ep_num < 0)
+			continue;
+
+		bcm63xx_ep_dma_select(udc, cfg->ep_num);
+		val = (cfg->ep_type << USBD_EPNUM_TYPEMAP_TYPE_SHIFT) |
+			((i >> 1) << USBD_EPNUM_TYPEMAP_DMA_CH_SHIFT);
+		usbd_writel(udc, val, USBD_EPNUM_TYPEMAP_REG);
+	}
+}
+
+/**
+ * bcm63xx_ep_setup - Configure per-endpoint settings.
+ * @udc: Reference to the device controller.
+ *
+ * This needs to be rerun if the speed/cfg/intf/altintf changes.
+ */
+static void bcm63xx_ep_setup(struct bcm63xx_udc *udc)
+{
+	u32 val, i;
+
+	usbd_writel(udc, USBD_CSR_SETUPADDR_DEF, USBD_CSR_SETUPADDR_REG);
+
+	for (i = 0; i < BCM63XX_NUM_IUDMA; i++) {
+		const struct iudma_ch_cfg *cfg = &iudma_defaults[i];
+		int max_pkt = udc->gadget.speed == USB_SPEED_HIGH ?
+			      cfg->max_pkt_hs : cfg->max_pkt_fs;
+		int idx = cfg->ep_num;
+
+		udc->iudma[i].max_pkt = max_pkt;
+
+		if (idx < 0)
+			continue;
+		udc->bep[idx].ep.maxpacket = max_pkt;
+
+		val = (idx << USBD_CSR_EP_LOG_SHIFT) |
+		      (cfg->dir << USBD_CSR_EP_DIR_SHIFT) |
+		      (cfg->ep_type << USBD_CSR_EP_TYPE_SHIFT) |
+		      (udc->cfg << USBD_CSR_EP_CFG_SHIFT) |
+		      (udc->iface << USBD_CSR_EP_IFACE_SHIFT) |
+		      (udc->alt_iface << USBD_CSR_EP_ALTIFACE_SHIFT) |
+		      (max_pkt << USBD_CSR_EP_MAXPKT_SHIFT);
+		usbd_writel(udc, val, USBD_CSR_EP_REG(idx));
+	}
+}
+
+/**
+ * iudma_write - Queue a single IUDMA transaction.
+ * @udc: Reference to the device controller.
+ * @iudma: IUDMA channel to use.
+ * @breq: Request containing the transaction data.
+ *
+ * For RX IUDMA, this will queue a single buffer descriptor, as RX IUDMA
+ * does not honor SOP/EOP so the handling of multiple buffers is ambiguous.
+ * So iudma_write() may be called several times to fulfill a single
+ * usb_request.
+ *
+ * For TX IUDMA, this can queue multiple buffer descriptors if needed.
+ */
+static void iudma_write(struct bcm63xx_udc *udc, struct iudma_ch *iudma,
+	struct bcm63xx_req *breq)
+{
+	int first_bd = 1, last_bd = 0, extra_zero_pkt = 0;
+	unsigned int bytes_left = breq->req.length - breq->offset;
+	const int max_bd_bytes = !irq_coalesce && !iudma->is_tx ?
+		iudma->max_pkt : IUDMA_MAX_FRAGMENT;
+
+	iudma->n_bds_used = 0;
+	breq->bd_bytes = 0;
+	breq->iudma = iudma;
+
+	if ((bytes_left % iudma->max_pkt == 0) && bytes_left && breq->req.zero)
+		extra_zero_pkt = 1;
+
+	do {
+		struct bcm_enet_desc *d = iudma->write_bd;
+		u32 dmaflags = 0;
+		unsigned int n_bytes;
+
+		if (d == iudma->end_bd) {
+			dmaflags |= DMADESC_WRAP_MASK;
+			iudma->write_bd = iudma->bd_ring;
+		} else {
+			iudma->write_bd++;
+		}
+		iudma->n_bds_used++;
+
+		n_bytes = min_t(int, bytes_left, max_bd_bytes);
+		if (n_bytes)
+			dmaflags |= n_bytes << DMADESC_LENGTH_SHIFT;
+		else
+			dmaflags |= (1 << DMADESC_LENGTH_SHIFT) |
+				    DMADESC_USB_ZERO_MASK;
+
+		dmaflags |= DMADESC_OWNER_MASK;
+		if (first_bd) {
+			dmaflags |= DMADESC_SOP_MASK;
+			first_bd = 0;
+		}
+
+		/*
+		 * extra_zero_pkt forces one more iteration through the loop
+		 * after all data is queued up, to send the zero packet
+		 */
+		if (extra_zero_pkt && !bytes_left)
+			extra_zero_pkt = 0;
+
+		if (!iudma->is_tx || iudma->n_bds_used == iudma->n_bds ||
+		    (n_bytes == bytes_left && !extra_zero_pkt)) {
+			last_bd = 1;
+			dmaflags |= DMADESC_EOP_MASK;
+		}
+
+		d->address = breq->req.dma + breq->offset;
+		mb();
+		d->len_stat = dmaflags;
+
+		breq->offset += n_bytes;
+		breq->bd_bytes += n_bytes;
+		bytes_left -= n_bytes;
+	} while (!last_bd);
+
+	usb_dmac_writel(udc, ENETDMAC_CHANCFG_EN_MASK,
+			ENETDMAC_CHANCFG_REG(iudma->ch_idx));
+}
+
+/**
+ * iudma_read - Check for IUDMA buffer completion.
+ * @udc: Reference to the device controller.
+ * @iudma: IUDMA channel to use.
+ *
+ * This checks to see if ALL of the outstanding BDs on the DMA channel
+ * have been filled.  If so, it returns the actual transfer length;
+ * otherwise it returns -EBUSY.
+ */
+static int iudma_read(struct bcm63xx_udc *udc, struct iudma_ch *iudma)
+{
+	int i, actual_len = 0;
+	struct bcm_enet_desc *d = iudma->read_bd;
+
+	if (!iudma->n_bds_used)
+		return -EINVAL;
+
+	for (i = 0; i < iudma->n_bds_used; i++) {
+		u32 dmaflags;
+
+		dmaflags = d->len_stat;
+
+		if (dmaflags & DMADESC_OWNER_MASK)
+			return -EBUSY;
+
+		actual_len += (dmaflags & DMADESC_LENGTH_MASK) >>
+			      DMADESC_LENGTH_SHIFT;
+		if (d == iudma->end_bd)
+			d = iudma->bd_ring;
+		else
+			d++;
+	}
+
+	iudma->read_bd = d;
+	iudma->n_bds_used = 0;
+	return actual_len;
+}
+
+/**
+ * iudma_reset_channel - Stop DMA on a single channel.
+ * @udc: Reference to the device controller.
+ * @iudma: IUDMA channel to reset.
+ */
+static void iudma_reset_channel(struct bcm63xx_udc *udc, struct iudma_ch *iudma)
+{
+	int timeout = IUDMA_RESET_TIMEOUT_US;
+	struct bcm_enet_desc *d;
+	int ch_idx = iudma->ch_idx;
+
+	if (!iudma->is_tx)
+		bcm63xx_fifo_reset_ep(udc, max(0, iudma->ep_num));
+
+	/* stop DMA, then wait for the hardware to wrap up */
+	usb_dmac_writel(udc, 0, ENETDMAC_CHANCFG_REG(ch_idx));
+
+	while (usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG(ch_idx)) &
+				   ENETDMAC_CHANCFG_EN_MASK) {
+		udelay(1);
+
+		/* repeatedly flush the FIFO data until the BD completes */
+		if (iudma->is_tx && iudma->ep_num >= 0)
+			bcm63xx_fifo_reset_ep(udc, iudma->ep_num);
+
+		if (!timeout--) {
+			dev_err(udc->dev, "can't reset IUDMA channel %d\n",
+				ch_idx);
+			break;
+		}
+		if (timeout == IUDMA_RESET_TIMEOUT_US / 2) {
+			dev_warn(udc->dev, "forcibly halting IUDMA channel %d\n",
+				 ch_idx);
+			usb_dmac_writel(udc, ENETDMAC_CHANCFG_BUFHALT_MASK,
+					ENETDMAC_CHANCFG_REG(ch_idx));
+		}
+	}
+	usb_dmac_writel(udc, ~0, ENETDMAC_IR_REG(ch_idx));
+
+	/* don't leave "live" HW-owned entries for the next guy to step on */
+	for (d = iudma->bd_ring; d <= iudma->end_bd; d++)
+		d->len_stat = 0;
+	mb();
+
+	iudma->read_bd = iudma->write_bd = iudma->bd_ring;
+	iudma->n_bds_used = 0;
+
+	/* set up IRQs, UBUS burst size, and BD base for this channel */
+	usb_dmac_writel(udc, ENETDMAC_IR_BUFDONE_MASK,
+			ENETDMAC_IRMASK_REG(ch_idx));
+	usb_dmac_writel(udc, 8, ENETDMAC_MAXBURST_REG(ch_idx));
+
+	usb_dmas_writel(udc, iudma->bd_ring_dma, ENETDMAS_RSTART_REG(ch_idx));
+	usb_dmas_writel(udc, 0, ENETDMAS_SRAM2_REG(ch_idx));
+}
+
+/**
+ * iudma_init_channel - One-time IUDMA channel initialization.
+ * @udc: Reference to the device controller.
+ * @ch_idx: Channel to initialize.
+ */
+static int iudma_init_channel(struct bcm63xx_udc *udc, unsigned int ch_idx)
+{
+	struct iudma_ch *iudma = &udc->iudma[ch_idx];
+	const struct iudma_ch_cfg *cfg = &iudma_defaults[ch_idx];
+	unsigned int n_bds = cfg->n_bds;
+	struct bcm63xx_ep *bep = NULL;
+
+	iudma->ep_num = cfg->ep_num;
+	iudma->ch_idx = ch_idx;
+	iudma->is_tx = !!(ch_idx & 0x01);
+	if (iudma->ep_num >= 0) {
+		bep = &udc->bep[iudma->ep_num];
+		bep->iudma = iudma;
+		INIT_LIST_HEAD(&bep->queue);
+	}
+
+	iudma->bep = bep;
+	iudma->udc = udc;
+
+	/* ep0 is always active; others are controlled by the gadget driver */
+	if (iudma->ep_num <= 0)
+		iudma->enabled = true;
+
+	iudma->n_bds = n_bds;
+	iudma->bd_ring = dmam_alloc_coherent(udc->dev,
+		n_bds * sizeof(struct bcm_enet_desc),
+		&iudma->bd_ring_dma, GFP_KERNEL);
+	if (!iudma->bd_ring)
+		return -ENOMEM;
+	iudma->end_bd = &iudma->bd_ring[n_bds - 1];
+
+	return 0;
+}
+
+/**
+ * iudma_init - One-time initialization of all IUDMA channels.
+ * @udc: Reference to the device controller.
+ *
+ * Enable DMA, flush channels, and enable global IUDMA IRQs.
+ */
+static int iudma_init(struct bcm63xx_udc *udc)
+{
+	int i, rc;
+
+	usb_dma_writel(udc, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
+
+	for (i = 0; i < BCM63XX_NUM_IUDMA; i++) {
+		rc = iudma_init_channel(udc, i);
+		if (rc)
+			return rc;
+		iudma_reset_channel(udc, &udc->iudma[i]);
+	}
+
+	usb_dma_writel(udc, BIT(BCM63XX_NUM_IUDMA)-1, ENETDMA_GLB_IRQMASK_REG);
+	return 0;
+}
+
+/**
+ * iudma_uninit - Uninitialize IUDMA channels.
+ * @udc: Reference to the device controller.
+ *
+ * Kill global IUDMA IRQs, flush channels, and kill DMA.
+ */
+static void iudma_uninit(struct bcm63xx_udc *udc)
+{
+	int i;
+
+	usb_dma_writel(udc, 0, ENETDMA_GLB_IRQMASK_REG);
+
+	for (i = 0; i < BCM63XX_NUM_IUDMA; i++)
+		iudma_reset_channel(udc, &udc->iudma[i]);
+
+	usb_dma_writel(udc, 0, ENETDMA_CFG_REG);
+}
+
+/***********************************************************************
+ * Other low-level USBD operations
+ ***********************************************************************/
+
+/**
+ * bcm63xx_set_ctrl_irqs - Mask/unmask control path interrupts.
+ * @udc: Reference to the device controller.
+ * @enable_irqs: true to enable, false to disable.
+ */
+static void bcm63xx_set_ctrl_irqs(struct bcm63xx_udc *udc, bool enable_irqs)
+{
+	u32 val;
+
+	usbd_writel(udc, 0, USBD_STATUS_REG);
+
+	val = BIT(USBD_EVENT_IRQ_USB_RESET) |
+	      BIT(USBD_EVENT_IRQ_SETUP) |
+	      BIT(USBD_EVENT_IRQ_SETCFG) |
+	      BIT(USBD_EVENT_IRQ_SETINTF) |
+	      BIT(USBD_EVENT_IRQ_USB_LINK);
+	usbd_writel(udc, enable_irqs ? val : 0, USBD_EVENT_IRQ_MASK_REG);
+	usbd_writel(udc, val, USBD_EVENT_IRQ_STATUS_REG);
+}
+
+/**
+ * bcm63xx_select_phy_mode - Select between USB device and host mode.
+ * @udc: Reference to the device controller.
+ * @is_device: true for device, false for host.
+ *
+ * This should probably be reworked to use the drivers/usb/otg
+ * infrastructure.
+ *
+ * By default, the AFE/pullups are disabled in device mode, until
+ * bcm63xx_select_pullup() is called.
+ */
+static void bcm63xx_select_phy_mode(struct bcm63xx_udc *udc, bool is_device)
+{
+	u32 val, portmask = BIT(udc->pd->port_no);
+
+	if (BCMCPU_IS_6328()) {
+		/* configure pinmux to sense VBUS signal */
+		val = bcm_gpio_readl(GPIO_PINMUX_OTHR_REG);
+		val &= ~GPIO_PINMUX_OTHR_6328_USB_MASK;
+		val |= is_device ? GPIO_PINMUX_OTHR_6328_USB_DEV :
+			       GPIO_PINMUX_OTHR_6328_USB_HOST;
+		bcm_gpio_writel(val, GPIO_PINMUX_OTHR_REG);
+	}
+
+	val = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_UTMI_CTL_6368_REG);
+	if (is_device) {
+		val |= (portmask << USBH_PRIV_UTMI_CTL_HOSTB_SHIFT);
+		val |= (portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT);
+	} else {
+		val &= ~(portmask << USBH_PRIV_UTMI_CTL_HOSTB_SHIFT);
+		val &= ~(portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT);
+	}
+	bcm_rset_writel(RSET_USBH_PRIV, val, USBH_PRIV_UTMI_CTL_6368_REG);
+
+	val = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_6368_REG);
+	if (is_device)
+		val |= USBH_PRIV_SWAP_USBD_MASK;
+	else
+		val &= ~USBH_PRIV_SWAP_USBD_MASK;
+	bcm_rset_writel(RSET_USBH_PRIV, val, USBH_PRIV_SWAP_6368_REG);
+}
+
+/**
+ * bcm63xx_select_pullup - Enable/disable the pullup on D+
+ * @udc: Reference to the device controller.
+ * @is_on: true to enable the pullup, false to disable.
+ *
+ * If the pullup is active, the host will sense a FS/HS device connected to
+ * the port.  If the pullup is inactive, the host will think the USB
+ * device has been disconnected.
+ */
+static void bcm63xx_select_pullup(struct bcm63xx_udc *udc, bool is_on)
+{
+	u32 val, portmask = BIT(udc->pd->port_no);
+
+	val = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_UTMI_CTL_6368_REG);
+	if (is_on)
+		val &= ~(portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT);
+	else
+		val |= (portmask << USBH_PRIV_UTMI_CTL_NODRIV_SHIFT);
+	bcm_rset_writel(RSET_USBH_PRIV, val, USBH_PRIV_UTMI_CTL_6368_REG);
+}
+
+/**
+ * bcm63xx_uninit_udc_hw - Shut down the hardware prior to driver removal.
+ * @udc: Reference to the device controller.
+ *
+ * This just masks the IUDMA IRQs and releases the clocks.  It is assumed
+ * that bcm63xx_udc_stop() has already run, and the clocks are stopped.
+ */
+static void bcm63xx_uninit_udc_hw(struct bcm63xx_udc *udc)
+{
+	set_clocks(udc, true);
+	iudma_uninit(udc);
+	set_clocks(udc, false);
+
+	clk_put(udc->usbd_clk);
+	clk_put(udc->usbh_clk);
+}
+
+/**
+ * bcm63xx_init_udc_hw - Initialize the controller hardware and data structures.
+ * @udc: Reference to the device controller.
+ */
+static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc)
+{
+	int i, rc = 0;
+	u32 val;
+
+	udc->ep0_ctrl_buf = devm_kzalloc(udc->dev, BCM63XX_MAX_CTRL_PKT,
+					 GFP_KERNEL);
+	if (!udc->ep0_ctrl_buf)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&udc->gadget.ep_list);
+	for (i = 0; i < BCM63XX_NUM_EP; i++) {
+		struct bcm63xx_ep *bep = &udc->bep[i];
+
+		bep->ep.name = bcm63xx_ep_name[i];
+		bep->ep_num = i;
+		bep->ep.ops = &bcm63xx_udc_ep_ops;
+		list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list);
+		bep->halted = 0;
+		bep->ep.maxpacket = BCM63XX_MAX_CTRL_PKT;
+		bep->udc = udc;
+		bep->ep.desc = NULL;
+		INIT_LIST_HEAD(&bep->queue);
+	}
+
+	udc->gadget.ep0 = &udc->bep[0].ep;
+	list_del(&udc->bep[0].ep.ep_list);
+
+	udc->gadget.speed = USB_SPEED_UNKNOWN;
+	udc->ep0state = EP0_SHUTDOWN;
+
+	udc->usbh_clk = clk_get(udc->dev, "usbh");
+	if (IS_ERR(udc->usbh_clk))
+		return -EIO;
+
+	udc->usbd_clk = clk_get(udc->dev, "usbd");
+	if (IS_ERR(udc->usbd_clk)) {
+		clk_put(udc->usbh_clk);
+		return -EIO;
+	}
+
+	set_clocks(udc, true);
+
+	val = USBD_CONTROL_AUTO_CSRS_MASK |
+	      USBD_CONTROL_DONE_CSRS_MASK |
+	      (irq_coalesce ? USBD_CONTROL_RXZSCFG_MASK : 0);
+	usbd_writel(udc, val, USBD_CONTROL_REG);
+
+	val = USBD_STRAPS_APP_SELF_PWR_MASK |
+	      USBD_STRAPS_APP_RAM_IF_MASK |
+	      USBD_STRAPS_APP_CSRPRGSUP_MASK |
+	      USBD_STRAPS_APP_8BITPHY_MASK |
+	      USBD_STRAPS_APP_RMTWKUP_MASK;
+
+	if (udc->gadget.max_speed == USB_SPEED_HIGH)
+		val |= (BCM63XX_SPD_HIGH << USBD_STRAPS_SPEED_SHIFT);
+	else
+		val |= (BCM63XX_SPD_FULL << USBD_STRAPS_SPEED_SHIFT);
+	usbd_writel(udc, val, USBD_STRAPS_REG);
+
+	bcm63xx_set_ctrl_irqs(udc, false);
+
+	usbd_writel(udc, 0, USBD_EVENT_IRQ_CFG_LO_REG);
+
+	val = USBD_EVENT_IRQ_CFG_FALLING(USBD_EVENT_IRQ_ENUM_ON) |
+	      USBD_EVENT_IRQ_CFG_FALLING(USBD_EVENT_IRQ_SET_CSRS);
+	usbd_writel(udc, val, USBD_EVENT_IRQ_CFG_HI_REG);
+
+	rc = iudma_init(udc);
+	set_clocks(udc, false);
+	if (rc)
+		bcm63xx_uninit_udc_hw(udc);
+
+	return 0;
+}
+
+/***********************************************************************
+ * Standard EP gadget operations
+ ***********************************************************************/
+
+/**
+ * bcm63xx_ep_enable - Enable one endpoint.
+ * @ep: Endpoint to enable.
+ * @desc: Contains max packet, direction, etc.
+ *
+ * Most of the endpoint parameters are fixed in this controller, so there
+ * isn't much for this function to do.
+ */
+static int bcm63xx_ep_enable(struct usb_ep *ep,
+	const struct usb_endpoint_descriptor *desc)
+{
+	struct bcm63xx_ep *bep = our_ep(ep);
+	struct bcm63xx_udc *udc = bep->udc;
+	struct iudma_ch *iudma = bep->iudma;
+	unsigned long flags;
+
+	if (!ep || !desc || ep->name == bcm63xx_ep0name)
+		return -EINVAL;
+
+	if (!udc->driver)
+		return -ESHUTDOWN;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	if (iudma->enabled) {
+		spin_unlock_irqrestore(&udc->lock, flags);
+		return -EINVAL;
+	}
+
+	iudma->enabled = true;
+	BUG_ON(!list_empty(&bep->queue));
+
+	iudma_reset_channel(udc, iudma);
+
+	bep->halted = 0;
+	bcm63xx_set_stall(udc, bep, false);
+	clear_bit(bep->ep_num, &udc->wedgemap);
+
+	ep->desc = desc;
+	ep->maxpacket = usb_endpoint_maxp(desc);
+
+	spin_unlock_irqrestore(&udc->lock, flags);
+	return 0;
+}
+
+/**
+ * bcm63xx_ep_disable - Disable one endpoint.
+ * @ep: Endpoint to disable.
+ */
+static int bcm63xx_ep_disable(struct usb_ep *ep)
+{
+	struct bcm63xx_ep *bep = our_ep(ep);
+	struct bcm63xx_udc *udc = bep->udc;
+	struct iudma_ch *iudma = bep->iudma;
+	struct list_head *pos, *n;
+	unsigned long flags;
+
+	if (!ep || !ep->desc)
+		return -EINVAL;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	if (!iudma->enabled) {
+		spin_unlock_irqrestore(&udc->lock, flags);
+		return -EINVAL;
+	}
+	iudma->enabled = false;
+
+	iudma_reset_channel(udc, iudma);
+
+	if (!list_empty(&bep->queue)) {
+		list_for_each_safe(pos, n, &bep->queue) {
+			struct bcm63xx_req *breq =
+				list_entry(pos, struct bcm63xx_req, queue);
+
+			usb_gadget_unmap_request(&udc->gadget, &breq->req,
+						 iudma->is_tx);
+			list_del(&breq->queue);
+			breq->req.status = -ESHUTDOWN;
+
+			spin_unlock_irqrestore(&udc->lock, flags);
+			breq->req.complete(&iudma->bep->ep, &breq->req);
+			spin_lock_irqsave(&udc->lock, flags);
+		}
+	}
+	ep->desc = NULL;
+
+	spin_unlock_irqrestore(&udc->lock, flags);
+	return 0;
+}
+
+/**
+ * bcm63xx_udc_alloc_request - Allocate a new request.
+ * @ep: Endpoint associated with the request.
+ * @mem_flags: Flags to pass to kzalloc().
+ */
+static struct usb_request *bcm63xx_udc_alloc_request(struct usb_ep *ep,
+	gfp_t mem_flags)
+{
+	struct bcm63xx_req *breq;
+
+	breq = kzalloc(sizeof(*breq), mem_flags);
+	if (!breq)
+		return NULL;
+	return &breq->req;
+}
+
+/**
+ * bcm63xx_udc_free_request - Free a request.
+ * @ep: Endpoint associated with the request.
+ * @req: Request to free.
+ */
+static void bcm63xx_udc_free_request(struct usb_ep *ep,
+	struct usb_request *req)
+{
+	struct bcm63xx_req *breq = our_req(req);
+	kfree(breq);
+}
+
+/**
+ * bcm63xx_udc_queue - Queue up a new request.
+ * @ep: Endpoint associated with the request.
+ * @req: Request to add.
+ * @mem_flags: Unused.
+ *
+ * If the queue is empty, start this request immediately.  Otherwise, add
+ * it to the list.
+ *
+ * ep0 replies are sent through this function from the gadget driver, but
+ * they are treated differently because they need to be handled by the ep0
+ * state machine.  (Sometimes they are replies to control requests that
+ * were spoofed by this driver, and so they shouldn't be transmitted at all.)
+ */
+static int bcm63xx_udc_queue(struct usb_ep *ep, struct usb_request *req,
+	gfp_t mem_flags)
+{
+	struct bcm63xx_ep *bep = our_ep(ep);
+	struct bcm63xx_udc *udc = bep->udc;
+	struct bcm63xx_req *breq = our_req(req);
+	unsigned long flags;
+	int rc = 0;
+
+	if (unlikely(!req || !req->complete || !req->buf || !ep))
+		return -EINVAL;
+
+	req->actual = 0;
+	req->status = 0;
+	breq->offset = 0;
+
+	if (bep == &udc->bep[0]) {
+		/* only one reply per request, please */
+		if (udc->ep0_reply)
+			return -EINVAL;
+
+		udc->ep0_reply = req;
+		schedule_work(&udc->ep0_wq);
+		return 0;
+	}
+
+	spin_lock_irqsave(&udc->lock, flags);
+	if (!bep->iudma->enabled) {
+		rc = -ESHUTDOWN;
+		goto out;
+	}
+
+	rc = usb_gadget_map_request(&udc->gadget, req, bep->iudma->is_tx);
+	if (rc == 0) {
+		list_add_tail(&breq->queue, &bep->queue);
+		if (list_is_singular(&bep->queue))
+			iudma_write(udc, bep->iudma, breq);
+	}
+
+out:
+	spin_unlock_irqrestore(&udc->lock, flags);
+	return rc;
+}
+
+/**
+ * bcm63xx_udc_dequeue - Remove a pending request from the queue.
+ * @ep: Endpoint associated with the request.
+ * @req: Request to remove.
+ *
+ * If the request is not at the head of the queue, this is easy - just nuke
+ * it.  If the request is at the head of the queue, we'll need to stop the
+ * DMA transaction and then queue up the successor.
+ */
+static int bcm63xx_udc_dequeue(struct usb_ep *ep, struct usb_request *req)
+{
+	struct bcm63xx_ep *bep = our_ep(ep);
+	struct bcm63xx_udc *udc = bep->udc;
+	struct bcm63xx_req *breq = our_req(req), *cur;
+	unsigned long flags;
+	int rc = 0;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	if (list_empty(&bep->queue)) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	cur = list_first_entry(&bep->queue, struct bcm63xx_req, queue);
+	usb_gadget_unmap_request(&udc->gadget, &breq->req, bep->iudma->is_tx);
+
+	if (breq == cur) {
+		iudma_reset_channel(udc, bep->iudma);
+		list_del(&breq->queue);
+
+		if (!list_empty(&bep->queue)) {
+			struct bcm63xx_req *next;
+
+			next = list_first_entry(&bep->queue,
+				struct bcm63xx_req, queue);
+			iudma_write(udc, bep->iudma, next);
+		}
+	} else {
+		list_del(&breq->queue);
+	}
+
+out:
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	req->status = -ESHUTDOWN;
+	req->complete(ep, req);
+
+	return rc;
+}
+
+/**
+ * bcm63xx_udc_set_halt - Enable/disable STALL flag in the hardware.
+ * @ep: Endpoint to halt.
+ * @value: Zero to clear halt; nonzero to set halt.
+ *
+ * See comments in bcm63xx_update_wedge().
+ */
+static int bcm63xx_udc_set_halt(struct usb_ep *ep, int value)
+{
+	struct bcm63xx_ep *bep = our_ep(ep);
+	struct bcm63xx_udc *udc = bep->udc;
+	unsigned long flags;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	bcm63xx_set_stall(udc, bep, !!value);
+	bep->halted = value;
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	return 0;
+}
+
+/**
+ * bcm63xx_udc_set_wedge - Stall the endpoint until the next reset.
+ * @ep: Endpoint to wedge.
+ *
+ * See comments in bcm63xx_update_wedge().
+ */
+static int bcm63xx_udc_set_wedge(struct usb_ep *ep)
+{
+	struct bcm63xx_ep *bep = our_ep(ep);
+	struct bcm63xx_udc *udc = bep->udc;
+	unsigned long flags;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	set_bit(bep->ep_num, &udc->wedgemap);
+	bcm63xx_set_stall(udc, bep, true);
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	return 0;
+}
+
+static const struct usb_ep_ops bcm63xx_udc_ep_ops = {
+	.enable		= bcm63xx_ep_enable,
+	.disable	= bcm63xx_ep_disable,
+
+	.alloc_request	= bcm63xx_udc_alloc_request,
+	.free_request	= bcm63xx_udc_free_request,
+
+	.queue		= bcm63xx_udc_queue,
+	.dequeue	= bcm63xx_udc_dequeue,
+
+	.set_halt	= bcm63xx_udc_set_halt,
+	.set_wedge	= bcm63xx_udc_set_wedge,
+};
+
+/***********************************************************************
+ * EP0 handling
+ ***********************************************************************/
+
+/**
+ * bcm63xx_ep0_setup_callback - Drop spinlock to invoke ->setup callback.
+ * @udc: Reference to the device controller.
+ * @ctrl: 8-byte SETUP request.
+ */
+static int bcm63xx_ep0_setup_callback(struct bcm63xx_udc *udc,
+	struct usb_ctrlrequest *ctrl)
+{
+	int rc;
+
+	spin_unlock_irq(&udc->lock);
+	rc = udc->driver->setup(&udc->gadget, ctrl);
+	spin_lock_irq(&udc->lock);
+	return rc;
+}
+
+/**
+ * bcm63xx_ep0_spoof_set_cfg - Synthesize a SET_CONFIGURATION request.
+ * @udc: Reference to the device controller.
+ *
+ * Many standard requests are handled automatically in the hardware, but
+ * we still need to pass them to the gadget driver so that it can
+ * reconfigure the interfaces/endpoints if necessary.
+ *
+ * Unfortunately we are not able to send a STALL response if the host
+ * requests an invalid configuration.  If this happens, we'll have to be
+ * content with printing a warning.
+ */
+static int bcm63xx_ep0_spoof_set_cfg(struct bcm63xx_udc *udc)
+{
+	struct usb_ctrlrequest ctrl;
+	int rc;
+
+	ctrl.bRequestType = USB_DIR_OUT | USB_RECIP_DEVICE;
+	ctrl.bRequest = USB_REQ_SET_CONFIGURATION;
+	ctrl.wValue = cpu_to_le16(udc->cfg);
+	ctrl.wIndex = 0;
+	ctrl.wLength = 0;
+
+	rc = bcm63xx_ep0_setup_callback(udc, &ctrl);
+	if (rc < 0) {
+		dev_warn_ratelimited(udc->dev,
+			"hardware auto-acked bad SET_CONFIGURATION(%d) request\n",
+			udc->cfg);
+	}
+	return rc;
+}
+
+/**
+ * bcm63xx_ep0_spoof_set_iface - Synthesize a SET_INTERFACE request.
+ * @udc: Reference to the device controller.
+ */
+static int bcm63xx_ep0_spoof_set_iface(struct bcm63xx_udc *udc)
+{
+	struct usb_ctrlrequest ctrl;
+	int rc;
+
+	ctrl.bRequestType = USB_DIR_OUT | USB_RECIP_INTERFACE;
+	ctrl.bRequest = USB_REQ_SET_INTERFACE;
+	ctrl.wValue = cpu_to_le16(udc->alt_iface);
+	ctrl.wIndex = cpu_to_le16(udc->iface);
+	ctrl.wLength = 0;
+
+	rc = bcm63xx_ep0_setup_callback(udc, &ctrl);
+	if (rc < 0) {
+		dev_warn_ratelimited(udc->dev,
+			"hardware auto-acked bad SET_INTERFACE(%d,%d) request\n",
+			udc->iface, udc->alt_iface);
+	}
+	return rc;
+}
+
+/**
+ * bcm63xx_ep0_map_write - dma_map and iudma_write a single request.
+ * @udc: Reference to the device controller.
+ * @ch_idx: IUDMA channel number.
+ * @req: USB gadget layer representation of the request.
+ */
+static void bcm63xx_ep0_map_write(struct bcm63xx_udc *udc, int ch_idx,
+	struct usb_request *req)
+{
+	struct bcm63xx_req *breq = our_req(req);
+	struct iudma_ch *iudma = &udc->iudma[ch_idx];
+
+	BUG_ON(udc->ep0_request);
+	udc->ep0_request = req;
+
+	req->actual = 0;
+	breq->offset = 0;
+	usb_gadget_map_request(&udc->gadget, req, iudma->is_tx);
+	iudma_write(udc, iudma, breq);
+}
+
+/**
+ * bcm63xx_ep0_complete - Set completion status and "stage" the callback.
+ * @udc: Reference to the device controller.
+ * @req: USB gadget layer representation of the request.
+ * @status: Status to return to the gadget driver.
+ */
+static void bcm63xx_ep0_complete(struct bcm63xx_udc *udc,
+	struct usb_request *req, int status)
+{
+	req->status = status;
+	if (status)
+		req->actual = 0;
+	if (req->complete) {
+		spin_unlock_irq(&udc->lock);
+		req->complete(&udc->bep[0].ep, req);
+		spin_lock_irq(&udc->lock);
+	}
+}
+
+/**
+ * bcm63xx_ep0_nuke_reply - Abort request from the gadget driver due to
+ *   reset/shutdown.
+ * @udc: Reference to the device controller.
+ * @is_tx: Nonzero for TX (IN), zero for RX (OUT).
+ */
+static void bcm63xx_ep0_nuke_reply(struct bcm63xx_udc *udc, int is_tx)
+{
+	struct usb_request *req = udc->ep0_reply;
+
+	udc->ep0_reply = NULL;
+	usb_gadget_unmap_request(&udc->gadget, req, is_tx);
+	if (udc->ep0_request == req) {
+		udc->ep0_req_completed = 0;
+		udc->ep0_request = NULL;
+	}
+	bcm63xx_ep0_complete(udc, req, -ESHUTDOWN);
+}
+
+/**
+ * bcm63xx_ep0_read_complete - Close out the pending ep0 request; return
+ *   transfer len.
+ * @udc: Reference to the device controller.
+ */
+static int bcm63xx_ep0_read_complete(struct bcm63xx_udc *udc)
+{
+	struct usb_request *req = udc->ep0_request;
+
+	udc->ep0_req_completed = 0;
+	udc->ep0_request = NULL;
+
+	return req->actual;
+}
+
+/**
+ * bcm63xx_ep0_internal_request - Helper function to submit an ep0 request.
+ * @udc: Reference to the device controller.
+ * @ch_idx: IUDMA channel number.
+ * @length: Number of bytes to TX/RX.
+ *
+ * Used for simple transfers performed by the ep0 worker.  This will always
+ * use ep0_ctrl_req / ep0_ctrl_buf.
+ */
+static void bcm63xx_ep0_internal_request(struct bcm63xx_udc *udc, int ch_idx,
+	int length)
+{
+	struct usb_request *req = &udc->ep0_ctrl_req.req;
+
+	req->buf = udc->ep0_ctrl_buf;
+	req->length = length;
+	req->complete = NULL;
+
+	bcm63xx_ep0_map_write(udc, ch_idx, req);
+}
+
+/**
+ * bcm63xx_ep0_do_setup - Parse new SETUP packet and decide how to handle it.
+ * @udc: Reference to the device controller.
+ *
+ * EP0_IDLE probably shouldn't ever happen.  EP0_REQUEUE means we're ready
+ * for the next packet.  Anything else means the transaction requires multiple
+ * stages of handling.
+ */
+static enum bcm63xx_ep0_state bcm63xx_ep0_do_setup(struct bcm63xx_udc *udc)
+{
+	int rc;
+	struct usb_ctrlrequest *ctrl = (void *)udc->ep0_ctrl_buf;
+
+	rc = bcm63xx_ep0_read_complete(udc);
+
+	if (rc < 0) {
+		dev_err(udc->dev, "missing SETUP packet\n");
+		return EP0_IDLE;
+	}
+
+	/*
+	 * Handle 0-byte IN STATUS acknowledgement.  The hardware doesn't
+	 * ALWAYS deliver these 100% of the time, so if we happen to see one,
+	 * just throw it away.
+	 */
+	if (rc == 0)
+		return EP0_REQUEUE;
+
+	/* Drop malformed SETUP packets */
+	if (rc != sizeof(*ctrl)) {
+		dev_warn_ratelimited(udc->dev,
+			"malformed SETUP packet (%d bytes)\n", rc);
+		return EP0_REQUEUE;
+	}
+
+	/* Process new SETUP packet arriving on ep0 */
+	rc = bcm63xx_ep0_setup_callback(udc, ctrl);
+	if (rc < 0) {
+		bcm63xx_set_stall(udc, &udc->bep[0], true);
+		return EP0_REQUEUE;
+	}
+
+	if (!ctrl->wLength)
+		return EP0_REQUEUE;
+	else if (ctrl->bRequestType & USB_DIR_IN)
+		return EP0_IN_DATA_PHASE_SETUP;
+	else
+		return EP0_OUT_DATA_PHASE_SETUP;
+}
+
+/**
+ * bcm63xx_ep0_do_idle - Check for outstanding requests if ep0 is idle.
+ * @udc: Reference to the device controller.
+ *
+ * In state EP0_IDLE, the RX descriptor is either pending, or has been
+ * filled with a SETUP packet from the host.  This function handles new
+ * SETUP packets, control IRQ events (which can generate fake SETUP packets),
+ * and reset/shutdown events.
+ *
+ * Returns 0 if work was done; -EAGAIN if nothing to do.
+ */
+static int bcm63xx_ep0_do_idle(struct bcm63xx_udc *udc)
+{
+	if (udc->ep0_req_reset) {
+		udc->ep0_req_reset = 0;
+	} else if (udc->ep0_req_set_cfg) {
+		udc->ep0_req_set_cfg = 0;
+		if (bcm63xx_ep0_spoof_set_cfg(udc) >= 0)
+			udc->ep0state = EP0_IN_FAKE_STATUS_PHASE;
+	} else if (udc->ep0_req_set_iface) {
+		udc->ep0_req_set_iface = 0;
+		if (bcm63xx_ep0_spoof_set_iface(udc) >= 0)
+			udc->ep0state = EP0_IN_FAKE_STATUS_PHASE;
+	} else if (udc->ep0_req_completed) {
+		udc->ep0state = bcm63xx_ep0_do_setup(udc);
+		return udc->ep0state == EP0_IDLE ? -EAGAIN : 0;
+	} else if (udc->ep0_req_shutdown) {
+		udc->ep0_req_shutdown = 0;
+		udc->ep0_req_completed = 0;
+		udc->ep0_request = NULL;
+		iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_RXCHAN]);
+		usb_gadget_unmap_request(&udc->gadget,
+			&udc->ep0_ctrl_req.req, 0);
+
+		/* bcm63xx_udc_pullup() is waiting for this */
+		mb();
+		udc->ep0state = EP0_SHUTDOWN;
+	} else if (udc->ep0_reply) {
+		/*
+		 * This could happen if a USB RESET shows up during an ep0
+		 * transaction (especially if a laggy driver like gadgetfs
+		 * is in use).
+		 */
+		dev_warn(udc->dev, "nuking unexpected reply\n");
+		bcm63xx_ep0_nuke_reply(udc, 0);
+	} else {
+		return -EAGAIN;
+	}
+
+	return 0;
+}
+
+/**
+ * bcm63xx_ep0_one_round - Handle the current ep0 state.
+ * @udc: Reference to the device controller.
+ *
+ * Returns 0 if work was done; -EAGAIN if nothing to do.
+ */
+static int bcm63xx_ep0_one_round(struct bcm63xx_udc *udc)
+{
+	enum bcm63xx_ep0_state ep0state = udc->ep0state;
+	bool shutdown = udc->ep0_req_reset || udc->ep0_req_shutdown;
+
+	switch (udc->ep0state) {
+	case EP0_REQUEUE:
+		/* set up descriptor to receive SETUP packet */
+		bcm63xx_ep0_internal_request(udc, IUDMA_EP0_RXCHAN,
+					     BCM63XX_MAX_CTRL_PKT);
+		ep0state = EP0_IDLE;
+		break;
+	case EP0_IDLE:
+		return bcm63xx_ep0_do_idle(udc);
+	case EP0_IN_DATA_PHASE_SETUP:
+		/*
+		 * Normal case: TX request is in ep0_reply (queued by the
+		 * callback), or will be queued shortly.  When it's here,
+		 * send it to the HW and go to EP0_IN_DATA_PHASE_COMPLETE.
+		 *
+		 * Shutdown case: Stop waiting for the reply.  Just
+		 * REQUEUE->IDLE.  The gadget driver is NOT expected to
+		 * queue anything else now.
+		 */
+		if (udc->ep0_reply) {
+			bcm63xx_ep0_map_write(udc, IUDMA_EP0_TXCHAN,
+					      udc->ep0_reply);
+			ep0state = EP0_IN_DATA_PHASE_COMPLETE;
+		} else if (shutdown) {
+			ep0state = EP0_REQUEUE;
+		}
+		break;
+	case EP0_IN_DATA_PHASE_COMPLETE: {
+		/*
+		 * Normal case: TX packet (ep0_reply) is in flight; wait for
+		 * it to finish, then go back to REQUEUE->IDLE.
+		 *
+		 * Shutdown case: Reset the TX channel, send -ESHUTDOWN
+		 * completion to the gadget driver, then REQUEUE->IDLE.
+		 */
+		if (udc->ep0_req_completed) {
+			udc->ep0_reply = NULL;
+			bcm63xx_ep0_read_complete(udc);
+			/*
+			 * the "ack" sometimes gets eaten (see
+			 * bcm63xx_ep0_do_idle)
+			 */
+			ep0state = EP0_REQUEUE;
+		} else if (shutdown) {
+			iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_TXCHAN]);
+			bcm63xx_ep0_nuke_reply(udc, 1);
+			ep0state = EP0_REQUEUE;
+		}
+		break;
+	}
+	case EP0_OUT_DATA_PHASE_SETUP:
+		/* Similar behavior to EP0_IN_DATA_PHASE_SETUP */
+		if (udc->ep0_reply) {
+			bcm63xx_ep0_map_write(udc, IUDMA_EP0_RXCHAN,
+					      udc->ep0_reply);
+			ep0state = EP0_OUT_DATA_PHASE_COMPLETE;
+		} else if (shutdown) {
+			ep0state = EP0_REQUEUE;
+		}
+		break;
+	case EP0_OUT_DATA_PHASE_COMPLETE: {
+		/* Similar behavior to EP0_IN_DATA_PHASE_COMPLETE */
+		if (udc->ep0_req_completed) {
+			udc->ep0_reply = NULL;
+			bcm63xx_ep0_read_complete(udc);
+
+			/* send 0-byte ack to host */
+			bcm63xx_ep0_internal_request(udc, IUDMA_EP0_TXCHAN, 0);
+			ep0state = EP0_OUT_STATUS_PHASE;
+		} else if (shutdown) {
+			iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_RXCHAN]);
+			bcm63xx_ep0_nuke_reply(udc, 0);
+			ep0state = EP0_REQUEUE;
+		}
+		break;
+	}
+	case EP0_OUT_STATUS_PHASE:
+		/*
+		 * Normal case: 0-byte OUT ack packet is in flight; wait
+		 * for it to finish, then go back to REQUEUE->IDLE.
+		 *
+		 * Shutdown case: just cancel the transmission.  Don't bother
+		 * calling the completion, because it originated from this
+		 * function anyway.  Then go back to REQUEUE->IDLE.
+		 */
+		if (udc->ep0_req_completed) {
+			bcm63xx_ep0_read_complete(udc);
+			ep0state = EP0_REQUEUE;
+		} else if (shutdown) {
+			iudma_reset_channel(udc, &udc->iudma[IUDMA_EP0_TXCHAN]);
+			udc->ep0_request = NULL;
+			ep0state = EP0_REQUEUE;
+		}
+		break;
+	case EP0_IN_FAKE_STATUS_PHASE: {
+		/*
+		 * Normal case: we spoofed a SETUP packet and are now
+		 * waiting for the gadget driver to send a 0-byte reply.
+		 * This doesn't actually get sent to the HW because the
+		 * HW has already sent its own reply.  Once we get the
+		 * response, return to IDLE.
+		 *
+		 * Shutdown case: return to IDLE immediately.
+		 *
+		 * Note that the ep0 RX descriptor has remained queued
+		 * (and possibly unfilled) during this entire transaction.
+		 * The HW datapath (IUDMA) never even sees SET_CONFIGURATION
+		 * or SET_INTERFACE transactions.
+		 */
+		struct usb_request *r = udc->ep0_reply;
+
+		if (!r) {
+			if (shutdown)
+				ep0state = EP0_IDLE;
+			break;
+		}
+
+		bcm63xx_ep0_complete(udc, r, 0);
+		udc->ep0_reply = NULL;
+		ep0state = EP0_IDLE;
+		break;
+	}
+	case EP0_SHUTDOWN:
+		break;
+	}
+
+	if (udc->ep0state == ep0state)
+		return -EAGAIN;
+
+	udc->ep0state = ep0state;
+	return 0;
+}
+
+/**
+ * bcm63xx_ep0_process - ep0 worker thread / state machine.
+ * @w: Workqueue struct.
+ *
+ * bcm63xx_ep0_process is triggered any time an event occurs on ep0.  It
+ * is used to synchronize ep0 events and ensure that both HW and SW events
+ * occur in a well-defined order.  When the ep0 IUDMA queues are idle, it may
+ * synthesize SET_CONFIGURATION / SET_INTERFACE requests that were consumed
+ * by the USBD hardware.
+ *
+ * The worker function will continue iterating around the state machine
+ * until there is nothing left to do.  Usually "nothing left to do" means
+ * that we're waiting for a new event from the hardware.
+ */
+static void bcm63xx_ep0_process(struct work_struct *w)
+{
+	struct bcm63xx_udc *udc = container_of(w, struct bcm63xx_udc, ep0_wq);
+	spin_lock_irq(&udc->lock);
+	while (bcm63xx_ep0_one_round(udc) == 0)
+		;
+	spin_unlock_irq(&udc->lock);
+}
+
+/***********************************************************************
+ * Standard UDC gadget operations
+ ***********************************************************************/
+
+/**
+ * bcm63xx_udc_get_frame - Read current SOF frame number from the HW.
+ * @gadget: USB slave device.
+ */
+static int bcm63xx_udc_get_frame(struct usb_gadget *gadget)
+{
+	struct bcm63xx_udc *udc = gadget_to_udc(gadget);
+
+	return (usbd_readl(udc, USBD_STATUS_REG) &
+		USBD_STATUS_SOF_MASK) >> USBD_STATUS_SOF_SHIFT;
+}
+
+/**
+ * bcm63xx_udc_pullup - Enable/disable pullup on D+ line.
+ * @gadget: USB slave device.
+ * @is_on: 0 to disable pullup, 1 to enable.
+ *
+ * See notes in bcm63xx_select_pullup().
+ */
+static int bcm63xx_udc_pullup(struct usb_gadget *gadget, int is_on)
+{
+	struct bcm63xx_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
+	int i, rc = -EINVAL;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	if (is_on && udc->ep0state == EP0_SHUTDOWN) {
+		udc->gadget.speed = USB_SPEED_UNKNOWN;
+		udc->ep0state = EP0_REQUEUE;
+		bcm63xx_fifo_setup(udc);
+		bcm63xx_fifo_reset(udc);
+		bcm63xx_ep_setup(udc);
+
+		bitmap_zero(&udc->wedgemap, BCM63XX_NUM_EP);
+		for (i = 0; i < BCM63XX_NUM_EP; i++)
+			bcm63xx_set_stall(udc, &udc->bep[i], false);
+
+		bcm63xx_set_ctrl_irqs(udc, true);
+		bcm63xx_select_pullup(gadget_to_udc(gadget), true);
+		rc = 0;
+	} else if (!is_on && udc->ep0state != EP0_SHUTDOWN) {
+		bcm63xx_select_pullup(gadget_to_udc(gadget), false);
+
+		udc->ep0_req_shutdown = 1;
+		spin_unlock_irqrestore(&udc->lock, flags);
+
+		while (1) {
+			schedule_work(&udc->ep0_wq);
+			if (udc->ep0state == EP0_SHUTDOWN)
+				break;
+			msleep(50);
+		}
+		bcm63xx_set_ctrl_irqs(udc, false);
+		cancel_work_sync(&udc->ep0_wq);
+		return 0;
+	}
+
+	spin_unlock_irqrestore(&udc->lock, flags);
+	return rc;
+}
+
+/**
+ * bcm63xx_udc_start - Start the controller.
+ * @gadget: USB slave device.
+ * @driver: Driver for USB slave devices.
+ */
+static int bcm63xx_udc_start(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
+{
+	struct bcm63xx_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
+
+	if (!driver || driver->max_speed < USB_SPEED_HIGH ||
+	    !driver->setup)
+		return -EINVAL;
+	if (!udc)
+		return -ENODEV;
+	if (udc->driver)
+		return -EBUSY;
+
+	spin_lock_irqsave(&udc->lock, flags);
+
+	set_clocks(udc, true);
+	bcm63xx_fifo_setup(udc);
+	bcm63xx_ep_init(udc);
+	bcm63xx_ep_setup(udc);
+	bcm63xx_fifo_reset(udc);
+	bcm63xx_select_phy_mode(udc, true);
+
+	udc->driver = driver;
+	driver->driver.bus = NULL;
+	udc->gadget.dev.driver = &driver->driver;
+	udc->gadget.dev.of_node = udc->dev->of_node;
+
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	return 0;
+}
+
+/**
+ * bcm63xx_udc_stop - Shut down the controller.
+ * @gadget: USB slave device.
+ * @driver: Driver for USB slave devices.
+ */
+static int bcm63xx_udc_stop(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
+{
+	struct bcm63xx_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
+
+	spin_lock_irqsave(&udc->lock, flags);
+
+	udc->driver = NULL;
+	udc->gadget.dev.driver = NULL;
+
+	/*
+	 * If we switch the PHY too abruptly after dropping D+, the host
+	 * will often complain:
+	 *
+	 *     hub 1-0:1.0: port 1 disabled by hub (EMI?), re-enabling...
+	 */
+	msleep(100);
+
+	bcm63xx_select_phy_mode(udc, false);
+	set_clocks(udc, false);
+
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	return 0;
+}
+
+static const struct usb_gadget_ops bcm63xx_udc_ops = {
+	.get_frame	= bcm63xx_udc_get_frame,
+	.pullup		= bcm63xx_udc_pullup,
+	.udc_start	= bcm63xx_udc_start,
+	.udc_stop	= bcm63xx_udc_stop,
+};
+
+/***********************************************************************
+ * IRQ handling
+ ***********************************************************************/
+
+/**
+ * bcm63xx_update_cfg_iface - Read current configuration/interface settings.
+ * @udc: Reference to the device controller.
+ *
+ * This controller intercepts SET_CONFIGURATION and SET_INTERFACE messages.
+ * The driver never sees the raw control packets coming in on the ep0
+ * IUDMA channel, but at least we get an interrupt event to tell us that
+ * new values are waiting in the USBD_STATUS register.
+ */
+static void bcm63xx_update_cfg_iface(struct bcm63xx_udc *udc)
+{
+	u32 reg = usbd_readl(udc, USBD_STATUS_REG);
+
+	udc->cfg = (reg & USBD_STATUS_CFG_MASK) >> USBD_STATUS_CFG_SHIFT;
+	udc->iface = (reg & USBD_STATUS_INTF_MASK) >> USBD_STATUS_INTF_SHIFT;
+	udc->alt_iface = (reg & USBD_STATUS_ALTINTF_MASK) >>
+			 USBD_STATUS_ALTINTF_SHIFT;
+	bcm63xx_ep_setup(udc);
+}
+
+/**
+ * bcm63xx_update_link_speed - Check to see if the link speed has changed.
+ * @udc: Reference to the device controller.
+ *
+ * The link speed update coincides with a SETUP IRQ.  Returns 1 if the
+ * speed has changed, so that the caller can update the endpoint settings.
+ */
+static int bcm63xx_update_link_speed(struct bcm63xx_udc *udc)
+{
+	u32 reg = usbd_readl(udc, USBD_STATUS_REG);
+	enum usb_device_speed oldspeed = udc->gadget.speed;
+
+	switch ((reg & USBD_STATUS_SPD_MASK) >> USBD_STATUS_SPD_SHIFT) {
+	case BCM63XX_SPD_HIGH:
+		udc->gadget.speed = USB_SPEED_HIGH;
+		break;
+	case BCM63XX_SPD_FULL:
+		udc->gadget.speed = USB_SPEED_FULL;
+		break;
+	default:
+		/* this should never happen */
+		udc->gadget.speed = USB_SPEED_UNKNOWN;
+		dev_err(udc->dev,
+			"received SETUP packet with invalid link speed\n");
+		return 0;
+	}
+
+	if (udc->gadget.speed != oldspeed) {
+		dev_info(udc->dev, "link up, %s-speed mode\n",
+			 udc->gadget.speed == USB_SPEED_HIGH ? "high" : "full");
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
+/**
+ * bcm63xx_update_wedge - Iterate through wedged endpoints.
+ * @udc: Reference to the device controller.
+ * @new_status: true to "refresh" wedge status; false to clear it.
+ *
+ * On a SETUP interrupt, we need to manually "refresh" the wedge status
+ * because the controller hardware is designed to automatically clear
+ * stalls in response to a CLEAR_FEATURE request from the host.
+ *
+ * On a RESET interrupt, we do want to restore all wedged endpoints.
+ */
+static void bcm63xx_update_wedge(struct bcm63xx_udc *udc, bool new_status)
+{
+	int i;
+
+	for_each_set_bit(i, &udc->wedgemap, BCM63XX_NUM_EP) {
+		bcm63xx_set_stall(udc, &udc->bep[i], new_status);
+		if (!new_status)
+			clear_bit(i, &udc->wedgemap);
+	}
+}
+
+/**
+ * bcm63xx_udc_ctrl_isr - ISR for control path events (USBD).
+ * @irq: IRQ number (unused).
+ * @dev_id: Reference to the device controller.
+ *
+ * This is where we handle link (VBUS) down, USB reset, speed changes,
+ * SET_CONFIGURATION, and SET_INTERFACE events.
+ */
+static irqreturn_t bcm63xx_udc_ctrl_isr(int irq, void *dev_id)
+{
+	struct bcm63xx_udc *udc = dev_id;
+	u32 stat;
+	bool disconnected = false;
+
+	stat = usbd_readl(udc, USBD_EVENT_IRQ_STATUS_REG) &
+	       usbd_readl(udc, USBD_EVENT_IRQ_MASK_REG);
+
+	usbd_writel(udc, stat, USBD_EVENT_IRQ_STATUS_REG);
+
+	spin_lock(&udc->lock);
+	if (stat & BIT(USBD_EVENT_IRQ_USB_LINK)) {
+		/* VBUS toggled */
+
+		if (!(usbd_readl(udc, USBD_EVENTS_REG) &
+		      USBD_EVENTS_USB_LINK_MASK) &&
+		      udc->gadget.speed != USB_SPEED_UNKNOWN)
+			dev_info(udc->dev, "link down\n");
+
+		udc->gadget.speed = USB_SPEED_UNKNOWN;
+		disconnected = true;
+	}
+	if (stat & BIT(USBD_EVENT_IRQ_USB_RESET)) {
+		bcm63xx_fifo_setup(udc);
+		bcm63xx_fifo_reset(udc);
+		bcm63xx_ep_setup(udc);
+
+		bcm63xx_update_wedge(udc, false);
+
+		udc->ep0_req_reset = 1;
+		schedule_work(&udc->ep0_wq);
+		disconnected = true;
+	}
+	if (stat & BIT(USBD_EVENT_IRQ_SETUP)) {
+		if (bcm63xx_update_link_speed(udc)) {
+			bcm63xx_fifo_setup(udc);
+			bcm63xx_ep_setup(udc);
+		}
+		bcm63xx_update_wedge(udc, true);
+	}
+	if (stat & BIT(USBD_EVENT_IRQ_SETCFG)) {
+		bcm63xx_update_cfg_iface(udc);
+		udc->ep0_req_set_cfg = 1;
+		schedule_work(&udc->ep0_wq);
+	}
+	if (stat & BIT(USBD_EVENT_IRQ_SETINTF)) {
+		bcm63xx_update_cfg_iface(udc);
+		udc->ep0_req_set_iface = 1;
+		schedule_work(&udc->ep0_wq);
+	}
+	spin_unlock(&udc->lock);
+
+	if (disconnected && udc->driver)
+		udc->driver->disconnect(&udc->gadget);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * bcm63xx_udc_data_isr - ISR for data path events (IUDMA).
+ * @irq: IRQ number (unused).
+ * @dev_id: Reference to the IUDMA channel that generated the interrupt.
+ *
+ * For the two ep0 channels, we have special handling that triggers the
+ * ep0 worker thread.  For normal bulk/intr channels, either queue up
+ * the next buffer descriptor for the transaction (incomplete transaction),
+ * or invoke the completion callback (complete transactions).
+ */
+static irqreturn_t bcm63xx_udc_data_isr(int irq, void *dev_id)
+{
+	struct iudma_ch *iudma = dev_id;
+	struct bcm63xx_udc *udc = iudma->udc;
+	struct bcm63xx_ep *bep;
+	struct usb_request *req = NULL;
+	struct bcm63xx_req *breq = NULL;
+	int rc;
+	bool is_done = false;
+
+	spin_lock(&udc->lock);
+
+	usb_dmac_writel(udc, ENETDMAC_IR_BUFDONE_MASK,
+			ENETDMAC_IR_REG(iudma->ch_idx));
+	bep = iudma->bep;
+	rc = iudma_read(udc, iudma);
+
+	/* special handling for EP0 RX (0) and TX (1) */
+	if (iudma->ch_idx == IUDMA_EP0_RXCHAN ||
+	    iudma->ch_idx == IUDMA_EP0_TXCHAN) {
+		req = udc->ep0_request;
+		breq = our_req(req);
+
+		/* a single request could require multiple submissions */
+		if (rc >= 0) {
+			req->actual += rc;
+
+			if (req->actual >= req->length || breq->bd_bytes > rc) {
+				udc->ep0_req_completed = 1;
+				is_done = true;
+				schedule_work(&udc->ep0_wq);
+
+				/* "actual" on a ZLP is 1 byte */
+				req->actual = min(req->actual, req->length);
+			} else {
+				/* queue up the next BD (same request) */
+				iudma_write(udc, iudma, breq);
+			}
+		}
+	} else if (!list_empty(&bep->queue)) {
+		breq = list_first_entry(&bep->queue, struct bcm63xx_req, queue);
+		req = &breq->req;
+
+		if (rc >= 0) {
+			req->actual += rc;
+
+			if (req->actual >= req->length || breq->bd_bytes > rc) {
+				is_done = true;
+				list_del(&breq->queue);
+
+				req->actual = min(req->actual, req->length);
+
+				if (!list_empty(&bep->queue)) {
+					struct bcm63xx_req *next;
+
+					next = list_first_entry(&bep->queue,
+						struct bcm63xx_req, queue);
+					iudma_write(udc, iudma, next);
+				}
+			} else {
+				iudma_write(udc, iudma, breq);
+			}
+		}
+	}
+	spin_unlock(&udc->lock);
+
+	if (is_done) {
+		usb_gadget_unmap_request(&udc->gadget, req, iudma->is_tx);
+		if (req->complete)
+			req->complete(&bep->ep, req);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/***********************************************************************
+ * Debug filesystem
+ ***********************************************************************/
+
+/*
+ * bcm63xx_usbd_dbg_show - Show USBD controller state.
+ * @s: seq_file to which the information will be written.
+ * @p: Unused.
+ *
+ * This file nominally shows up as /sys/kernel/debug/bcm63xx_udc/usbd
+ */
+static int bcm63xx_usbd_dbg_show(struct seq_file *s, void *p)
+{
+	struct bcm63xx_udc *udc = s->private;
+
+	if (!udc->driver)
+		return -ENODEV;
+
+	seq_printf(s, "ep0 state: %s\n",
+		   bcm63xx_ep0_state_names[udc->ep0state]);
+	seq_printf(s, "  pending requests: %s%s%s%s%s%s%s\n",
+		   udc->ep0_req_reset ? "reset " : "",
+		   udc->ep0_req_set_cfg ? "set_cfg " : "",
+		   udc->ep0_req_set_iface ? "set_iface " : "",
+		   udc->ep0_req_shutdown ? "shutdown " : "",
+		   udc->ep0_request ? "pending " : "",
+		   udc->ep0_req_completed ? "completed " : "",
+		   udc->ep0_reply ? "reply " : "");
+	seq_printf(s, "cfg: %d; iface: %d; alt_iface: %d\n",
+		   udc->cfg, udc->iface, udc->alt_iface);
+	seq_printf(s, "regs:\n");
+	seq_printf(s, "  control: %08x; straps: %08x; status: %08x\n",
+		   usbd_readl(udc, USBD_CONTROL_REG),
+		   usbd_readl(udc, USBD_STRAPS_REG),
+		   usbd_readl(udc, USBD_STATUS_REG));
+	seq_printf(s, "  events:  %08x; stall:  %08x\n",
+		   usbd_readl(udc, USBD_EVENTS_REG),
+		   usbd_readl(udc, USBD_STALL_REG));
+
+	return 0;
+}
+
+/*
+ * bcm63xx_iudma_dbg_show - Show IUDMA status and descriptors.
+ * @s: seq_file to which the information will be written.
+ * @p: Unused.
+ *
+ * This file nominally shows up as /sys/kernel/debug/bcm63xx_udc/iudma
+ */
+static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p)
+{
+	struct bcm63xx_udc *udc = s->private;
+	int ch_idx, i;
+	u32 sram2, sram3;
+
+	if (!udc->driver)
+		return -ENODEV;
+
+	for (ch_idx = 0; ch_idx < BCM63XX_NUM_IUDMA; ch_idx++) {
+		struct iudma_ch *iudma = &udc->iudma[ch_idx];
+		struct list_head *pos;
+
+		seq_printf(s, "IUDMA channel %d -- ", ch_idx);
+		switch (iudma_defaults[ch_idx].ep_type) {
+		case BCMEP_CTRL:
+			seq_printf(s, "control");
+			break;
+		case BCMEP_BULK:
+			seq_printf(s, "bulk");
+			break;
+		case BCMEP_INTR:
+			seq_printf(s, "interrupt");
+			break;
+		}
+		seq_printf(s, ch_idx & 0x01 ? " tx" : " rx");
+		seq_printf(s, " [ep%d]:\n",
+			   max_t(int, iudma_defaults[ch_idx].ep_num, 0));
+		seq_printf(s, "  cfg: %08x; irqstat: %08x; irqmask: %08x; maxburst: %08x\n",
+			   usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG(ch_idx)),
+			   usb_dmac_readl(udc, ENETDMAC_IR_REG(ch_idx)),
+			   usb_dmac_readl(udc, ENETDMAC_IRMASK_REG(ch_idx)),
+			   usb_dmac_readl(udc, ENETDMAC_MAXBURST_REG(ch_idx)));
+
+		sram2 = usb_dmas_readl(udc, ENETDMAS_SRAM2_REG(ch_idx));
+		sram3 = usb_dmas_readl(udc, ENETDMAS_SRAM3_REG(ch_idx));
+		seq_printf(s, "  base: %08x; index: %04x_%04x; desc: %04x_%04x %08x\n",
+			   usb_dmas_readl(udc, ENETDMAS_RSTART_REG(ch_idx)),
+			   sram2 >> 16, sram2 & 0xffff,
+			   sram3 >> 16, sram3 & 0xffff,
+			   usb_dmas_readl(udc, ENETDMAS_SRAM4_REG(ch_idx)));
+		seq_printf(s, "  desc: %d/%d used", iudma->n_bds_used,
+			   iudma->n_bds);
+
+		if (iudma->bep) {
+			i = 0;
+			list_for_each(pos, &iudma->bep->queue)
+				i++;
+			seq_printf(s, "; %d queued\n", i);
+		} else {
+			seq_printf(s, "\n");
+		}
+
+		for (i = 0; i < iudma->n_bds; i++) {
+			struct bcm_enet_desc *d = &iudma->bd_ring[i];
+
+			seq_printf(s, "  %03x (%02x): len_stat: %04x_%04x; pa %08x",
+				   i * sizeof(*d), i,
+				   d->len_stat >> 16, d->len_stat & 0xffff,
+				   d->address);
+			if (d == iudma->read_bd)
+				seq_printf(s, "   <<RD");
+			if (d == iudma->write_bd)
+				seq_printf(s, "   <<WR");
+			seq_printf(s, "\n");
+		}
+
+		seq_printf(s, "\n");
+	}
+
+	return 0;
+}
+
+static int bcm63xx_usbd_dbg_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, bcm63xx_usbd_dbg_show, inode->i_private);
+}
+
+static int bcm63xx_iudma_dbg_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, bcm63xx_iudma_dbg_show, inode->i_private);
+}
+
+static const struct file_operations usbd_dbg_fops = {
+	.owner		= THIS_MODULE,
+	.open		= bcm63xx_usbd_dbg_open,
+	.llseek		= seq_lseek,
+	.read		= seq_read,
+	.release	= single_release,
+};
+
+static const struct file_operations iudma_dbg_fops = {
+	.owner		= THIS_MODULE,
+	.open		= bcm63xx_iudma_dbg_open,
+	.llseek		= seq_lseek,
+	.read		= seq_read,
+	.release	= single_release,
+};
+
+
+/**
+ * bcm63xx_udc_init_debugfs - Create debugfs entries.
+ * @udc: Reference to the device controller.
+ */
+static void bcm63xx_udc_init_debugfs(struct bcm63xx_udc *udc)
+{
+	struct dentry *root, *usbd, *iudma;
+
+	if (!IS_ENABLED(CONFIG_USB_GADGET_DEBUG_FS))
+		return;
+
+	root = debugfs_create_dir(udc->gadget.name, NULL);
+	if (IS_ERR(root) || !root)
+		goto err_root;
+
+	usbd = debugfs_create_file("usbd", 0400, root, udc,
+			&usbd_dbg_fops);
+	if (!usbd)
+		goto err_usbd;
+	iudma = debugfs_create_file("iudma", 0400, root, udc,
+			&iudma_dbg_fops);
+	if (!iudma)
+		goto err_iudma;
+
+	udc->debugfs_root = root;
+	udc->debugfs_usbd = usbd;
+	udc->debugfs_iudma = iudma;
+	return;
+err_iudma:
+	debugfs_remove(usbd);
+err_usbd:
+	debugfs_remove(root);
+err_root:
+	dev_err(udc->dev, "debugfs is not available\n");
+}
+
+/**
+ * bcm63xx_udc_cleanup_debugfs - Remove debugfs entries.
+ * @udc: Reference to the device controller.
+ *
+ * debugfs_remove() is safe to call with a NULL argument.
+ */
+static void bcm63xx_udc_cleanup_debugfs(struct bcm63xx_udc *udc)
+{
+	debugfs_remove(udc->debugfs_iudma);
+	debugfs_remove(udc->debugfs_usbd);
+	debugfs_remove(udc->debugfs_root);
+	udc->debugfs_iudma = NULL;
+	udc->debugfs_usbd = NULL;
+	udc->debugfs_root = NULL;
+}
+
+/***********************************************************************
+ * Driver init/exit
+ ***********************************************************************/
+
+/**
+ * bcm63xx_udc_gadget_release - Called from device_release().
+ * @dev: Unused.
+ *
+ * We get a warning if this function doesn't exist, but it's empty because
+ * we don't have to free any of the memory allocated with the devm_* APIs.
+ */
+static void bcm63xx_udc_gadget_release(struct device *dev)
+{
+}
+
+/**
+ * bcm63xx_udc_probe - Initialize a new instance of the UDC.
+ * @pdev: Platform device struct from the bcm63xx BSP code.
+ *
+ * Note that platform data is required, because pd.port_no varies from chip
+ * to chip and is used to switch the correct USB port to device mode.
+ */
+static int __devinit bcm63xx_udc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcm63xx_usbd_platform_data *pd = dev->platform_data;
+	struct bcm63xx_udc *udc;
+	struct resource *res;
+	int rc = -ENOMEM, i, irq;
+
+	udc = devm_kzalloc(dev, sizeof(*udc), GFP_KERNEL);
+	if (!udc) {
+		dev_err(dev, "cannot allocate memory\n");
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, udc);
+	udc->dev = dev;
+	udc->pd = pd;
+
+	if (!pd) {
+		dev_err(dev, "missing platform data\n");
+		return -EINVAL;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "error finding USBD resource\n");
+		return -ENXIO;
+	}
+	udc->usbd_regs = devm_request_and_ioremap(dev, res);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!res) {
+		dev_err(dev, "error finding IUDMA resource\n");
+		return -ENXIO;
+	}
+	udc->iudma_regs = devm_request_and_ioremap(dev, res);
+
+	if (!udc->usbd_regs || !udc->iudma_regs) {
+		dev_err(dev, "error requesting resources\n");
+		return -ENXIO;
+	}
+
+	spin_lock_init(&udc->lock);
+	INIT_WORK(&udc->ep0_wq, bcm63xx_ep0_process);
+	dev_set_name(&udc->gadget.dev, "gadget");
+
+	udc->gadget.ops = &bcm63xx_udc_ops;
+	udc->gadget.name = dev_name(dev);
+	udc->gadget.dev.parent = dev;
+	udc->gadget.dev.release = bcm63xx_udc_gadget_release;
+	udc->gadget.dev.dma_mask = dev->dma_mask;
+
+	if (!pd->use_fullspeed && !use_fullspeed)
+		udc->gadget.max_speed = USB_SPEED_HIGH;
+	else
+		udc->gadget.max_speed = USB_SPEED_FULL;
+
+	/* request clocks, allocate buffers, and clear any pending IRQs */
+	rc = bcm63xx_init_udc_hw(udc);
+	if (rc)
+		return rc;
+
+	rc = -ENXIO;
+
+	/* IRQ resource #0: control interrupt (VBUS, speed, etc.) */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(dev, "missing IRQ resource #0\n");
+		goto out_uninit;
+	}
+	if (devm_request_irq(dev, irq, &bcm63xx_udc_ctrl_isr, 0,
+			     dev_name(dev), udc) < 0) {
+		dev_err(dev, "error requesting IRQ #%d\n", irq);
+		goto out_uninit;
+	}
+
+	/* IRQ resources #1-6: data interrupts for IUDMA channels 0-5 */
+	for (i = 0; i < BCM63XX_NUM_IUDMA; i++) {
+		irq = platform_get_irq(pdev, i + 1);
+		if (irq < 0) {
+			dev_err(dev, "missing IRQ resource #%d\n", i + 1);
+			goto out_uninit;
+		}
+		if (devm_request_irq(dev, irq, &bcm63xx_udc_data_isr, 0,
+				     dev_name(dev), &udc->iudma[i]) < 0) {
+			dev_err(dev, "error requesting IRQ #%d\n", irq);
+			goto out_uninit;
+		}
+	}
+
+	rc = device_register(&udc->gadget.dev);
+	if (rc)
+		goto out_uninit;
+
+	bcm63xx_udc_init_debugfs(udc);
+	rc = usb_add_gadget_udc(dev, &udc->gadget);
+	if (!rc)
+		return 0;
+
+	bcm63xx_udc_cleanup_debugfs(udc);
+	device_unregister(&udc->gadget.dev);
+out_uninit:
+	bcm63xx_uninit_udc_hw(udc);
+	return rc;
+}
+
+/**
+ * bcm63xx_udc_remove - Remove the device from the system.
+ * @pdev: Platform device struct from the bcm63xx BSP code.
+ */
+static int __devexit bcm63xx_udc_remove(struct platform_device *pdev)
+{
+	struct bcm63xx_udc *udc = platform_get_drvdata(pdev);
+
+	bcm63xx_udc_cleanup_debugfs(udc);
+	usb_del_gadget_udc(&udc->gadget);
+	device_unregister(&udc->gadget.dev);
+	BUG_ON(udc->driver);
+
+	platform_set_drvdata(pdev, NULL);
+	bcm63xx_uninit_udc_hw(udc);
+
+	return 0;
+}
+
+static struct platform_driver bcm63xx_udc_driver = {
+	.probe		= bcm63xx_udc_probe,
+	.remove		= __devexit_p(bcm63xx_udc_remove),
+	.driver		= {
+		.name	= DRV_MODULE_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+module_platform_driver(bcm63xx_udc_driver);
+
+MODULE_DESCRIPTION("BCM63xx USB Peripheral Controller");
+MODULE_AUTHOR("Kevin Cernekee <cernekee@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_MODULE_NAME);
diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c
index 725550f06fa..1e4bb77f00b 100644
--- a/drivers/usb/gadget/cdc2.c
+++ b/drivers/usb/gadget/cdc2.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
 #include <linux/module.h>
 
 #include "u_ether.h"
@@ -34,6 +33,7 @@
 #define CDC_PRODUCT_NUM		0xa4aa	/* CDC Composite: ECM + ACM */
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 /*
  * Kbuild is not very cooperative with respect to linking separately
@@ -43,10 +43,6 @@
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
 
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
 #include "u_serial.c"
 #include "f_acm.c"
 #include "f_ecm.c"
@@ -92,15 +88,10 @@ static const struct usb_descriptor_header *otg_desc[] = {
 
 
 /* string IDs are assigned dynamically */
-
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -152,7 +143,6 @@ static struct usb_configuration cdc_config_driver = {
 
 static int __init cdc_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	struct usb_gadget	*gadget = cdev->gadget;
 	int			status;
 
@@ -172,47 +162,22 @@ static int __init cdc_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		goto fail0;
 
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	else {
-		/* We assume that can_support_ecm() tells the truth;
-		 * but if the controller isn't recognized at all then
-		 * that assumption is a bit more likely to be wrong.
-		 */
-		WARNING(cdev, "controller '%s' not recognized; trying %s\n",
-				gadget->name,
-				cdc_config_driver.label);
-		device_desc.bcdDevice =
-			cpu_to_le16(0x0300 | 0x0099);
-	}
-
-
 	/* Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
 
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail1;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail1;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register our configuration */
 	status = usb_add_config(cdev, &cdc_config_driver, cdc_do_config);
 	if (status < 0)
 		goto fail1;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
 			DRIVER_DESC);
 
@@ -232,11 +197,12 @@ static int __exit cdc_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver cdc_driver = {
+static __refdata struct usb_composite_driver cdc_driver = {
 	.name		= "g_cdc",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= cdc_bind,
 	.unbind		= __exit_p(cdc_unbind),
 };
 
@@ -246,7 +212,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-	return usb_composite_probe(&cdc_driver, cdc_bind);
+	return usb_composite_probe(&cdc_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 3f72110da1b..957f973dd96 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -28,44 +28,6 @@
  * with the relevant device-wide data.
  */
 
-/* big enough to hold our biggest descriptor */
-#define USB_BUFSIZ	1024
-
-static struct usb_composite_driver *composite;
-static int (*composite_gadget_bind)(struct usb_composite_dev *cdev);
-
-/* Some systems will need runtime overrides for the  product identifiers
- * published in the device descriptor, either numbers or strings or both.
- * String parameters are in UTF-8 (superset of ASCII's 7 bit characters).
- */
-
-static ushort idVendor;
-module_param(idVendor, ushort, 0644);
-MODULE_PARM_DESC(idVendor, "USB Vendor ID");
-
-static ushort idProduct;
-module_param(idProduct, ushort, 0644);
-MODULE_PARM_DESC(idProduct, "USB Product ID");
-
-static ushort bcdDevice;
-module_param(bcdDevice, ushort, 0644);
-MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)");
-
-static char *iManufacturer;
-module_param(iManufacturer, charp, 0644);
-MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string");
-
-static char *iProduct;
-module_param(iProduct, charp, 0644);
-MODULE_PARM_DESC(iProduct, "USB Product string");
-
-static char *iSerialNumber;
-module_param(iSerialNumber, charp, 0644);
-MODULE_PARM_DESC(iSerialNumber, "SerialNumber string");
-
-static char composite_manufacturer[50];
-
-/*-------------------------------------------------------------------------*/
 /**
  * next_ep_desc() - advance to the next EP descriptor
  * @t: currect pointer within descriptor array
@@ -192,6 +154,7 @@ ep_found:
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(config_ep_by_speed);
 
 /**
  * usb_add_function() - add a function to a configuration
@@ -250,6 +213,7 @@ done:
 				function->name, function, value);
 	return value;
 }
+EXPORT_SYMBOL_GPL(usb_add_function);
 
 /**
  * usb_function_deactivate - prevent function and gadget enumeration
@@ -286,6 +250,7 @@ int usb_function_deactivate(struct usb_function *function)
 	spin_unlock_irqrestore(&cdev->lock, flags);
 	return status;
 }
+EXPORT_SYMBOL_GPL(usb_function_deactivate);
 
 /**
  * usb_function_activate - allow function and gadget enumeration
@@ -300,9 +265,10 @@ int usb_function_deactivate(struct usb_function *function)
 int usb_function_activate(struct usb_function *function)
 {
 	struct usb_composite_dev	*cdev = function->config->cdev;
+	unsigned long			flags;
 	int				status = 0;
 
-	spin_lock(&cdev->lock);
+	spin_lock_irqsave(&cdev->lock, flags);
 
 	if (WARN_ON(cdev->deactivations == 0))
 		status = -EINVAL;
@@ -312,9 +278,10 @@ int usb_function_activate(struct usb_function *function)
 			status = usb_gadget_connect(cdev->gadget);
 	}
 
-	spin_unlock(&cdev->lock);
+	spin_unlock_irqrestore(&cdev->lock, flags);
 	return status;
 }
+EXPORT_SYMBOL_GPL(usb_function_activate);
 
 /**
  * usb_interface_id() - allocate an unused interface ID
@@ -351,16 +318,18 @@ int usb_interface_id(struct usb_configuration *config,
 	}
 	return -ENODEV;
 }
+EXPORT_SYMBOL_GPL(usb_interface_id);
 
 static int config_buf(struct usb_configuration *config,
 		enum usb_device_speed speed, void *buf, u8 type)
 {
 	struct usb_config_descriptor	*c = buf;
 	void				*next = buf + USB_DT_CONFIG_SIZE;
-	int				len = USB_BUFSIZ - USB_DT_CONFIG_SIZE;
+	int				len;
 	struct usb_function		*f;
 	int				status;
 
+	len = USB_COMP_EP0_BUFSIZ - USB_DT_CONFIG_SIZE;
 	/* write the config descriptor */
 	c = buf;
 	c->bLength = USB_DT_CONFIG_SIZE;
@@ -790,6 +759,7 @@ done:
 				config->bConfigurationValue, status);
 	return status;
 }
+EXPORT_SYMBOL_GPL(usb_add_config);
 
 static void remove_config(struct usb_composite_dev *cdev,
 			      struct usb_configuration *config)
@@ -889,10 +859,10 @@ static int lookup_string(
 static int get_string(struct usb_composite_dev *cdev,
 		void *buf, u16 language, int id)
 {
+	struct usb_composite_driver	*composite = cdev->driver;
 	struct usb_configuration	*c;
 	struct usb_function		*f;
 	int				len;
-	const char			*str;
 
 	/* Yes, not only is USB's I18N support probably more than most
 	 * folk will ever care about ... also, it's all supported here.
@@ -932,26 +902,6 @@ static int get_string(struct usb_composite_dev *cdev,
 		return s->bLength;
 	}
 
-	/* Otherwise, look up and return a specified string.  First
-	 * check if the string has not been overridden.
-	 */
-	if (cdev->manufacturer_override == id)
-		str = iManufacturer ?: composite->iManufacturer ?:
-			composite_manufacturer;
-	else if (cdev->product_override == id)
-		str = iProduct ?: composite->iProduct;
-	else if (cdev->serial_override == id)
-		str = iSerialNumber ?: composite->iSerialNumber;
-	else
-		str = NULL;
-	if (str) {
-		struct usb_gadget_strings strings = {
-			.language = language,
-			.strings  = &(struct usb_string) { 0xff, str }
-		};
-		return usb_gadget_get_string(&strings, 0xff, buf);
-	}
-
 	/* String IDs are device-scoped, so we look up each string
 	 * table we're told about.  These lookups are infrequent;
 	 * simpler-is-better here.
@@ -1003,6 +953,7 @@ int usb_string_id(struct usb_composite_dev *cdev)
 	}
 	return -ENODEV;
 }
+EXPORT_SYMBOL_GPL(usb_string_id);
 
 /**
  * usb_string_ids() - allocate unused string IDs in batch
@@ -1034,6 +985,7 @@ int usb_string_ids_tab(struct usb_composite_dev *cdev, struct usb_string *str)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_string_ids_tab);
 
 /**
  * usb_string_ids_n() - allocate unused string IDs in batch
@@ -1062,7 +1014,7 @@ int usb_string_ids_n(struct usb_composite_dev *c, unsigned n)
 	c->next_string_id += n;
 	return next + 1;
 }
-
+EXPORT_SYMBOL_GPL(usb_string_ids_n);
 
 /*-------------------------------------------------------------------------*/
 
@@ -1359,8 +1311,8 @@ static void composite_disconnect(struct usb_gadget *gadget)
 	spin_lock_irqsave(&cdev->lock, flags);
 	if (cdev->config)
 		reset_config(cdev);
-	if (composite->disconnect)
-		composite->disconnect(cdev);
+	if (cdev->driver->disconnect)
+		cdev->driver->disconnect(cdev);
 	spin_unlock_irqrestore(&cdev->lock, flags);
 }
 
@@ -1396,35 +1348,67 @@ composite_unbind(struct usb_gadget *gadget)
 				struct usb_configuration, list);
 		remove_config(cdev, c);
 	}
-	if (composite->unbind)
-		composite->unbind(cdev);
+	if (cdev->driver->unbind)
+		cdev->driver->unbind(cdev);
 
 	if (cdev->req) {
 		kfree(cdev->req->buf);
 		usb_ep_free_request(gadget->ep0, cdev->req);
 	}
 	device_remove_file(&gadget->dev, &dev_attr_suspended);
+	kfree(cdev->def_manufacturer);
 	kfree(cdev);
 	set_gadget_data(gadget, NULL);
-	composite = NULL;
 }
 
-static u8 override_id(struct usb_composite_dev *cdev, u8 *desc)
+static void update_unchanged_dev_desc(struct usb_device_descriptor *new,
+		const struct usb_device_descriptor *old)
 {
-	if (!*desc) {
-		int ret = usb_string_id(cdev);
-		if (unlikely(ret < 0))
-			WARNING(cdev, "failed to override string ID\n");
-		else
-			*desc = ret;
-	}
+	__le16 idVendor;
+	__le16 idProduct;
+	__le16 bcdDevice;
+	u8 iSerialNumber;
+	u8 iManufacturer;
+	u8 iProduct;
 
-	return *desc;
+	/*
+	 * these variables may have been set in
+	 * usb_composite_overwrite_options()
+	 */
+	idVendor = new->idVendor;
+	idProduct = new->idProduct;
+	bcdDevice = new->bcdDevice;
+	iSerialNumber = new->iSerialNumber;
+	iManufacturer = new->iManufacturer;
+	iProduct = new->iProduct;
+
+	*new = *old;
+	if (idVendor)
+		new->idVendor = idVendor;
+	if (idProduct)
+		new->idProduct = idProduct;
+	if (bcdDevice)
+		new->bcdDevice = bcdDevice;
+	else
+		new->bcdDevice = cpu_to_le16(get_default_bcdDevice());
+	if (iSerialNumber)
+		new->iSerialNumber = iSerialNumber;
+	if (iManufacturer)
+		new->iManufacturer = iManufacturer;
+	if (iProduct)
+		new->iProduct = iProduct;
 }
 
-static int composite_bind(struct usb_gadget *gadget)
+static struct usb_composite_driver *to_cdriver(struct usb_gadget_driver *gdrv)
+{
+	return container_of(gdrv, struct usb_composite_driver, gadget_driver);
+}
+
+static int composite_bind(struct usb_gadget *gadget,
+		struct usb_gadget_driver *gdriver)
 {
 	struct usb_composite_dev	*cdev;
+	struct usb_composite_driver	*composite = to_cdriver(gdriver);
 	int				status = -ENOMEM;
 
 	cdev = kzalloc(sizeof *cdev, GFP_KERNEL);
@@ -1440,13 +1424,12 @@ static int composite_bind(struct usb_gadget *gadget)
 	cdev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL);
 	if (!cdev->req)
 		goto fail;
-	cdev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL);
+	cdev->req->buf = kmalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL);
 	if (!cdev->req->buf)
 		goto fail;
 	cdev->req->complete = composite_setup_complete;
 	gadget->ep0->driver_data = cdev;
 
-	cdev->bufsiz = USB_BUFSIZ;
 	cdev->driver = composite;
 
 	/*
@@ -1467,49 +1450,11 @@ static int composite_bind(struct usb_gadget *gadget)
 	 * serial number), register function drivers, potentially update
 	 * power state and consumption, etc
 	 */
-	status = composite_gadget_bind(cdev);
+	status = composite->bind(cdev);
 	if (status < 0)
 		goto fail;
 
-	cdev->desc = *composite->dev;
-
-	/* standardized runtime overrides for device ID data */
-	if (idVendor)
-		cdev->desc.idVendor = cpu_to_le16(idVendor);
-	else
-		idVendor = le16_to_cpu(cdev->desc.idVendor);
-	if (idProduct)
-		cdev->desc.idProduct = cpu_to_le16(idProduct);
-	else
-		idProduct = le16_to_cpu(cdev->desc.idProduct);
-	if (bcdDevice)
-		cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
-	else
-		bcdDevice = le16_to_cpu(cdev->desc.bcdDevice);
-
-	/* string overrides */
-	if (iManufacturer || !cdev->desc.iManufacturer) {
-		if (!iManufacturer && !composite->iManufacturer &&
-		    !*composite_manufacturer)
-			snprintf(composite_manufacturer,
-				 sizeof composite_manufacturer,
-				 "%s %s with %s",
-				 init_utsname()->sysname,
-				 init_utsname()->release,
-				 gadget->name);
-
-		cdev->manufacturer_override =
-			override_id(cdev, &cdev->desc.iManufacturer);
-	}
-
-	if (iProduct || (!cdev->desc.iProduct && composite->iProduct))
-		cdev->product_override =
-			override_id(cdev, &cdev->desc.iProduct);
-
-	if (iSerialNumber ||
-	    (!cdev->desc.iSerialNumber && composite->iSerialNumber))
-		cdev->serial_override =
-			override_id(cdev, &cdev->desc.iSerialNumber);
+	update_unchanged_dev_desc(&cdev->desc, composite->dev);
 
 	/* has userspace failed to provide a serial number? */
 	if (composite->needs_serial && !cdev->desc.iSerialNumber)
@@ -1546,8 +1491,8 @@ composite_suspend(struct usb_gadget *gadget)
 				f->suspend(f);
 		}
 	}
-	if (composite->suspend)
-		composite->suspend(cdev);
+	if (cdev->driver->suspend)
+		cdev->driver->suspend(cdev);
 
 	cdev->suspended = 1;
 
@@ -1565,8 +1510,8 @@ composite_resume(struct usb_gadget *gadget)
 	 * suspend/resume callbacks?
 	 */
 	DBG(cdev, "resume\n");
-	if (composite->resume)
-		composite->resume(cdev);
+	if (cdev->driver->resume)
+		cdev->driver->resume(cdev);
 	if (cdev->config) {
 		list_for_each_entry(f, &cdev->config->functions, list) {
 			if (f->resume)
@@ -1584,13 +1529,8 @@ composite_resume(struct usb_gadget *gadget)
 
 /*-------------------------------------------------------------------------*/
 
-static struct usb_gadget_driver composite_driver = {
-#ifdef CONFIG_USB_GADGET_SUPERSPEED
-	.max_speed	= USB_SPEED_SUPER,
-#else
-	.max_speed	= USB_SPEED_HIGH,
-#endif
-
+static const struct usb_gadget_driver composite_driver_template = {
+	.bind		= composite_bind,
 	.unbind		= composite_unbind,
 
 	.setup		= composite_setup,
@@ -1623,25 +1563,26 @@ static struct usb_gadget_driver composite_driver = {
  * while it was binding.  That would usually be done in order to wait for
  * some userspace participation.
  */
-int usb_composite_probe(struct usb_composite_driver *driver,
-			       int (*bind)(struct usb_composite_dev *cdev))
+int usb_composite_probe(struct usb_composite_driver *driver)
 {
-	if (!driver || !driver->dev || !bind || composite)
+	struct usb_gadget_driver *gadget_driver;
+
+	if (!driver || !driver->dev || !driver->bind)
 		return -EINVAL;
 
 	if (!driver->name)
 		driver->name = "composite";
-	if (!driver->iProduct)
-		driver->iProduct = driver->name;
-	composite_driver.function =  (char *) driver->name;
-	composite_driver.driver.name = driver->name;
-	composite_driver.max_speed =
-		min_t(u8, composite_driver.max_speed, driver->max_speed);
-	composite = driver;
-	composite_gadget_bind = bind;
-
-	return usb_gadget_probe_driver(&composite_driver, composite_bind);
+
+	driver->gadget_driver = composite_driver_template;
+	gadget_driver = &driver->gadget_driver;
+
+	gadget_driver->function =  (char *) driver->name;
+	gadget_driver->driver.name = driver->name;
+	gadget_driver->max_speed = driver->max_speed;
+
+	return usb_gadget_probe_driver(gadget_driver);
 }
+EXPORT_SYMBOL_GPL(usb_composite_probe);
 
 /**
  * usb_composite_unregister() - unregister a composite driver
@@ -1652,10 +1593,9 @@ int usb_composite_probe(struct usb_composite_driver *driver,
  */
 void usb_composite_unregister(struct usb_composite_driver *driver)
 {
-	if (composite != driver)
-		return;
-	usb_gadget_unregister_driver(&composite_driver);
+	usb_gadget_unregister_driver(&driver->gadget_driver);
 }
+EXPORT_SYMBOL_GPL(usb_composite_unregister);
 
 /**
  * usb_composite_setup_continue() - Continue with the control transfer
@@ -1692,4 +1632,60 @@ void usb_composite_setup_continue(struct usb_composite_dev *cdev)
 
 	spin_unlock_irqrestore(&cdev->lock, flags);
 }
+EXPORT_SYMBOL_GPL(usb_composite_setup_continue);
+
+static char *composite_default_mfr(struct usb_gadget *gadget)
+{
+	char *mfr;
+	int len;
+
+	len = snprintf(NULL, 0, "%s %s with %s", init_utsname()->sysname,
+			init_utsname()->release, gadget->name);
+	len++;
+	mfr = kmalloc(len, GFP_KERNEL);
+	if (!mfr)
+		return NULL;
+	snprintf(mfr, len, "%s %s with %s", init_utsname()->sysname,
+			init_utsname()->release, gadget->name);
+	return mfr;
+}
+
+void usb_composite_overwrite_options(struct usb_composite_dev *cdev,
+		struct usb_composite_overwrite *covr)
+{
+	struct usb_device_descriptor	*desc = &cdev->desc;
+	struct usb_gadget_strings	*gstr = cdev->driver->strings[0];
+	struct usb_string		*dev_str = gstr->strings;
+
+	if (covr->idVendor)
+		desc->idVendor = cpu_to_le16(covr->idVendor);
+
+	if (covr->idProduct)
+		desc->idProduct = cpu_to_le16(covr->idProduct);
+
+	if (covr->bcdDevice)
+		desc->bcdDevice = cpu_to_le16(covr->bcdDevice);
+
+	if (covr->serial_number) {
+		desc->iSerialNumber = dev_str[USB_GADGET_SERIAL_IDX].id;
+		dev_str[USB_GADGET_SERIAL_IDX].s = covr->serial_number;
+	}
+	if (covr->manufacturer) {
+		desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id;
+		dev_str[USB_GADGET_MANUFACTURER_IDX].s = covr->manufacturer;
+
+	} else if (!strlen(dev_str[USB_GADGET_MANUFACTURER_IDX].s)) {
+		desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id;
+		cdev->def_manufacturer = composite_default_mfr(cdev->gadget);
+		dev_str[USB_GADGET_MANUFACTURER_IDX].s = cdev->def_manufacturer;
+	}
+
+	if (covr->product) {
+		desc->iProduct = dev_str[USB_GADGET_PRODUCT_IDX].id;
+		dev_str[USB_GADGET_PRODUCT_IDX].s = covr->product;
+	}
+}
+EXPORT_SYMBOL_GPL(usb_composite_overwrite_options);
 
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Brownell");
diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index 7542a72ce51..e3a98929d34 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -12,6 +12,7 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/list.h>
 #include <linux/string.h>
 #include <linux/device.h>
@@ -53,7 +54,7 @@ usb_descriptor_fillbuf(void *buf, unsigned buflen,
 	}
 	return dest - (u8 *)buf;
 }
-
+EXPORT_SYMBOL_GPL(usb_descriptor_fillbuf);
 
 /**
  * usb_gadget_config_buf - builts a complete configuration descriptor
@@ -106,6 +107,7 @@ int usb_gadget_config_buf(
 	cp->bmAttributes |= USB_CONFIG_ATT_ONE;
 	return len;
 }
+EXPORT_SYMBOL_GPL(usb_gadget_config_buf);
 
 /**
  * usb_copy_descriptors - copy a vector of USB descriptors
@@ -155,4 +157,4 @@ usb_copy_descriptors(struct usb_descriptor_header **src)
 
 	return ret;
 }
-
+EXPORT_SYMBOL_GPL(usb_copy_descriptors);
diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c
index 19d7bb0df75..87d16502816 100644
--- a/drivers/usb/gadget/dbgp.c
+++ b/drivers/usb/gadget/dbgp.c
@@ -13,9 +13,6 @@
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 
-/* See comments in "zero.c" */
-#include "epautoconf.c"
-
 #ifdef CONFIG_USB_G_DBGP_SERIAL
 #include "u_serial.c"
 #endif
@@ -292,7 +289,8 @@ fail_1:
 	return -ENODEV;
 }
 
-static int __init dbgp_bind(struct usb_gadget *gadget)
+static int __init dbgp_bind(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
 {
 	int err, stp;
 
@@ -402,9 +400,10 @@ fail:
 	return err;
 }
 
-static struct usb_gadget_driver dbgp_driver = {
+static __refdata struct usb_gadget_driver dbgp_driver = {
 	.function = "dbgp",
 	.max_speed = USB_SPEED_HIGH,
+	.bind = dbgp_bind,
 	.unbind = dbgp_unbind,
 	.setup = dbgp_setup,
 	.disconnect = dbgp_disconnect,
@@ -416,7 +415,7 @@ static struct usb_gadget_driver dbgp_driver = {
 
 static int __init dbgp_init(void)
 {
-	return usb_gadget_probe_driver(&dbgp_driver, dbgp_bind);
+	return usb_gadget_probe_driver(&dbgp_driver);
 }
 
 static void __exit dbgp_exit(void)
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index b799106027a..0f7541be28f 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -909,6 +909,7 @@ static int dummy_udc_start(struct usb_gadget *g,
 	dum->devstatus = 0;
 
 	dum->driver = driver;
+	dum->gadget.dev.driver = &driver->driver;
 	dev_dbg(udc_dev(dum), "binding gadget driver '%s'\n",
 			driver->driver.name);
 	return 0;
@@ -923,6 +924,7 @@ static int dummy_udc_stop(struct usb_gadget *g,
 	dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n",
 			driver->driver.name);
 
+	dum->gadget.dev.driver = NULL;
 	dum->driver = NULL;
 
 	return 0;
@@ -1916,6 +1918,27 @@ done:
 	return retval;
 }
 
+/* usb 3.0 root hub device descriptor */
+struct {
+	struct usb_bos_descriptor bos;
+	struct usb_ss_cap_descriptor ss_cap;
+} __packed usb3_bos_desc = {
+
+	.bos = {
+		.bLength		= USB_DT_BOS_SIZE,
+		.bDescriptorType	= USB_DT_BOS,
+		.wTotalLength		= cpu_to_le16(sizeof(usb3_bos_desc)),
+		.bNumDeviceCaps		= 1,
+	},
+	.ss_cap = {
+		.bLength		= USB_DT_USB_SS_CAP_SIZE,
+		.bDescriptorType	= USB_DT_DEVICE_CAPABILITY,
+		.bDevCapabilityType	= USB_SS_CAP_TYPE,
+		.wSpeedSupported	= cpu_to_le16(USB_5GBPS_OPERATION),
+		.bFunctionalitySupport	= ilog2(USB_5GBPS_OPERATION),
+	},
+};
+
 static inline void
 ss_hub_descriptor(struct usb_hub_descriptor *desc)
 {
@@ -2006,6 +2029,18 @@ static int dummy_hub_control(
 		else
 			hub_descriptor((struct usb_hub_descriptor *) buf);
 		break;
+
+	case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+		if (hcd->speed != HCD_USB3)
+			goto error;
+
+		if ((wValue >> 8) != USB_DT_BOS)
+			goto error;
+
+		memcpy(buf, &usb3_bos_desc, sizeof(usb3_bos_desc));
+		retval = sizeof(usb3_bos_desc);
+		break;
+
 	case GetHubStatus:
 		*(__le32 *) buf = cpu_to_le32(0);
 		break;
@@ -2503,10 +2538,8 @@ static int dummy_hcd_probe(struct platform_device *pdev)
 	hs_hcd->has_tt = 1;
 
 	retval = usb_add_hcd(hs_hcd, 0, 0);
-	if (retval != 0) {
-		usb_put_hcd(hs_hcd);
-		return retval;
-	}
+	if (retval)
+		goto put_usb2_hcd;
 
 	if (mod_data.is_super_speed) {
 		ss_hcd = usb_create_shared_hcd(&dummy_hcd, &pdev->dev,
@@ -2525,6 +2558,8 @@ static int dummy_hcd_probe(struct platform_device *pdev)
 put_usb3_hcd:
 	usb_put_hcd(ss_hcd);
 dealloc_usb2_hcd:
+	usb_remove_hcd(hs_hcd);
+put_usb2_hcd:
 	usb_put_hcd(hs_hcd);
 	the_controller.hs_hcd = the_controller.ss_hcd = NULL;
 	return retval;
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 51f3d42f5a6..a777f7bd11b 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
@@ -22,17 +23,6 @@
 
 #include "gadget_chips.h"
 
-
-/* we must assign addresses for configurable endpoints (like net2280) */
-static unsigned epnum;
-
-// #define MANY_ENDPOINTS
-#ifdef MANY_ENDPOINTS
-/* more than 15 configurable endpoints */
-static unsigned in_epnum;
-#endif
-
-
 /*
  * This should work with endpoints from controller drivers sharing the
  * same endpoint naming convention.  By example:
@@ -176,16 +166,14 @@ ep_matches (
 	if (isdigit (ep->name [2])) {
 		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
 		desc->bEndpointAddress |= num;
-#ifdef	MANY_ENDPOINTS
 	} else if (desc->bEndpointAddress & USB_DIR_IN) {
-		if (++in_epnum > 15)
+		if (++gadget->in_epnum > 15)
 			return 0;
-		desc->bEndpointAddress = USB_DIR_IN | in_epnum;
-#endif
+		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
 	} else {
-		if (++epnum > 15)
+		if (++gadget->out_epnum > 15)
 			return 0;
-		desc->bEndpointAddress |= epnum;
+		desc->bEndpointAddress |= gadget->out_epnum;
 	}
 
 	/* report (variable) full speed bulk maxpacket */
@@ -328,6 +316,7 @@ found_ep:
 	ep->comp_desc = NULL;
 	return ep;
 }
+EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
 
 /**
  * usb_ep_autoconfig() - choose an endpoint matching the
@@ -367,7 +356,7 @@ struct usb_ep *usb_ep_autoconfig(
 {
 	return usb_ep_autoconfig_ss(gadget, desc, NULL);
 }
-
+EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
 
 /**
  * usb_ep_autoconfig_reset - reset endpoint autoconfig state
@@ -385,9 +374,7 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
 		ep->driver_data = NULL;
 	}
-#ifdef	MANY_ENDPOINTS
-	in_epnum = 0;
-#endif
-	epnum = 0;
+	gadget->in_epnum = 0;
+	gadget->out_epnum = 0;
 }
-
+EXPORT_SYMBOL_GPL(usb_ep_autoconfig_reset);
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index a28f6ffcd0f..18c3f423706 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -14,8 +14,6 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
-
 
 #if defined USB_ETH_RNDIS
 #  undef USB_ETH_RNDIS
@@ -102,11 +100,6 @@ static inline bool has_rndis(void)
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "f_ecm.c"
 #include "f_subset.c"
 #ifdef	USB_ETH_RNDIS
@@ -117,6 +110,7 @@ static inline bool has_rndis(void)
 #include "u_ether.c"
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 /* DO NOT REUSE THESE IDs with a protocol-incompatible driver!!  Ever!!
  * Instead:  allocate your own, using normal USB-IF procedures.
@@ -195,17 +189,10 @@ static const struct usb_descriptor_header *otg_desc[] = {
 	NULL,
 };
 
-
-/* string IDs are assigned dynamically */
-
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = PREFIX DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = PREFIX DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -288,7 +275,6 @@ static struct usb_configuration eth_config_driver = {
 
 static int __init eth_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	struct usb_gadget	*gadget = cdev->gadget;
 	int			status;
 
@@ -323,42 +309,15 @@ static int __init eth_bind(struct usb_composite_dev *cdev)
 		device_desc.bNumConfigurations = 2;
 	}
 
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	else {
-		/* We assume that can_support_ecm() tells the truth;
-		 * but if the controller isn't recognized at all then
-		 * that assumption is a bit more likely to be wrong.
-		 */
-		dev_warn(&gadget->dev,
-				"controller '%s' not recognized; trying %s\n",
-				gadget->name,
-				eth_config_driver.label);
-		device_desc.bcdDevice =
-			cpu_to_le16(0x0300 | 0x0099);
-	}
-
-
 	/* Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
 
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register our configuration(s); RNDIS first, if it's used */
 	if (has_rndis()) {
@@ -372,6 +331,7 @@ static int __init eth_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		goto fail;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
 			DRIVER_DESC);
 
@@ -388,11 +348,12 @@ static int __exit eth_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver eth_driver = {
+static __refdata struct usb_composite_driver eth_driver = {
 	.name		= "g_ether",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_SUPER,
+	.bind		= eth_bind,
 	.unbind		= __exit_p(eth_unbind),
 };
 
@@ -402,7 +363,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-	return usb_composite_probe(&eth_driver, eth_bind);
+	return usb_composite_probe(&eth_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c
index 30b908f2a53..95bc94f8e57 100644
--- a/drivers/usb/gadget/f_ecm.c
+++ b/drivers/usb/gadget/f_ecm.c
@@ -897,10 +897,7 @@ ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
 		return -ENOMEM;
 
 	/* export host's Ethernet address in CDC format */
-	snprintf(ecm->ethaddr, sizeof ecm->ethaddr,
-		"%02X%02X%02X%02X%02X%02X",
-		ethaddr[0], ethaddr[1], ethaddr[2],
-		ethaddr[3], ethaddr[4], ethaddr[5]);
+	snprintf(ecm->ethaddr, sizeof ecm->ethaddr, "%pm", ethaddr);
 	ecm_string_defs[1].s = ecm->ethaddr;
 
 	ecm->port.cdc_filter = DEFAULT_FILTER;
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 8adc79d1b40..64c4ec10d1f 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -34,11 +34,15 @@
 /* Debugging ****************************************************************/
 
 #ifdef VERBOSE_DEBUG
+#ifndef pr_vdebug
 #  define pr_vdebug pr_debug
+#endif /* pr_vdebug */
 #  define ffs_dump_mem(prefix, ptr, len) \
 	print_hex_dump_bytes(pr_fmt(prefix ": "), DUMP_PREFIX_NONE, ptr, len)
 #else
+#ifndef pr_vdebug
 #  define pr_vdebug(...)                 do { } while (0)
+#endif /* pr_vdebug */
 #  define ffs_dump_mem(prefix, ptr, len) do { } while (0)
 #endif /* VERBOSE_DEBUG */
 
@@ -220,8 +224,8 @@ struct ffs_data {
 	/* File permissions, written once when fs is mounted */
 	struct ffs_file_perms {
 		umode_t				mode;
-		uid_t				uid;
-		gid_t				gid;
+		kuid_t				uid;
+		kgid_t				gid;
 	}				file_perms;
 
 	/*
@@ -336,7 +340,7 @@ ffs_sb_create_file(struct super_block *sb, const char *name, void *data,
 
 static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
 	__attribute__((warn_unused_result, nonnull));
-static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+static char *ffs_prepare_buffer(const char __user *buf, size_t len)
 	__attribute__((warn_unused_result, nonnull));
 
 
@@ -1143,10 +1147,19 @@ static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
 			break;
 
 		case 3:
-			if (!memcmp(opts, "uid", 3))
-				data->perms.uid = value;
+			if (!memcmp(opts, "uid", 3)) {
+				data->perms.uid = make_kuid(current_user_ns(), value);
+				if (!uid_valid(data->perms.uid)) {
+					pr_err("%s: unmapped value: %lu\n", opts, value);
+					return -EINVAL;
+				}
+			}
 			else if (!memcmp(opts, "gid", 3))
-				data->perms.gid = value;
+				data->perms.gid = make_kgid(current_user_ns(), value);
+				if (!gid_valid(data->perms.gid)) {
+					pr_err("%s: unmapped value: %lu\n", opts, value);
+					return -EINVAL;
+				}
 			else
 				goto invalid;
 			break;
@@ -1175,8 +1188,8 @@ ffs_fs_mount(struct file_system_type *t, int flags,
 	struct ffs_sb_fill_data data = {
 		.perms = {
 			.mode = S_IFREG | 0600,
-			.uid = 0,
-			.gid = 0
+			.uid = GLOBAL_ROOT_UID,
+			.gid = GLOBAL_ROOT_GID,
 		},
 		.root_mode = S_IFDIR | 0500,
 	};
@@ -2432,7 +2445,7 @@ static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
 		: mutex_lock_interruptible(mutex);
 }
 
-static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+static char *ffs_prepare_buffer(const char __user *buf, size_t len)
 {
 	char *data;
 
diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
index 16a8b1c15c6..511e527178e 100644
--- a/drivers/usb/gadget/f_hid.c
+++ b/drivers/usb/gadget/f_hid.c
@@ -10,7 +10,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
 #include <linux/module.h>
 #include <linux/hid.h>
 #include <linux/cdev.h>
@@ -18,6 +17,7 @@
 #include <linux/poll.h>
 #include <linux/uaccess.h>
 #include <linux/wait.h>
+#include <linux/sched.h>
 #include <linux/usb/g_hid.h>
 
 static int major, minors;
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 4f1142efa6d..3a7668bde3e 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -213,7 +213,6 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/freezer.h>
-#include <linux/utsname.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
@@ -349,7 +348,6 @@ struct fsg_config {
 
 	const char *vendor_name;		/*  8 characters or less */
 	const char *product_name;		/* 16 characters or less */
-	u16 release;
 
 	char			can_stall;
 };
@@ -2773,18 +2771,7 @@ buffhds_first_it:
 	bh->next = common->buffhds;
 
 	/* Prepare inquiryString */
-	if (cfg->release != 0xffff) {
-		i = cfg->release;
-	} else {
-		i = usb_gadget_controller_number(gadget);
-		if (i >= 0) {
-			i = 0x0300 + i;
-		} else {
-			WARNING(common, "controller '%s' not recognized\n",
-				gadget->name);
-			i = 0x0399;
-		}
-	}
+	i = get_default_bcdDevice();
 	snprintf(common->inquiry_string, sizeof common->inquiry_string,
 		 "%-8s%-16s%04x", cfg->vendor_name ?: "Linux",
 		 /* Assume product name dependent on the first LUN */
@@ -3110,7 +3097,6 @@ fsg_config_from_params(struct fsg_config *cfg,
 	/* Let MSF use defaults */
 	cfg->vendor_name = 0;
 	cfg->product_name = 0;
-	cfg->release = 0xffff;
 
 	cfg->ops = NULL;
 	cfg->private_data = NULL;
diff --git a/drivers/usb/gadget/f_midi.c b/drivers/usb/gadget/f_midi.c
index 2f7e8f2930c..8ed1259fe80 100644
--- a/drivers/usb/gadget/f_midi.c
+++ b/drivers/usb/gadget/f_midi.c
@@ -21,7 +21,6 @@
 
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/utsname.h>
 #include <linux/device.h>
 
 #include <sound/core.h>
diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c
index aab8eded045..b651b529c67 100644
--- a/drivers/usb/gadget/f_ncm.c
+++ b/drivers/usb/gadget/f_ncm.c
@@ -1346,10 +1346,7 @@ int __init ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
 		return -ENOMEM;
 
 	/* export host's Ethernet address in CDC format */
-	snprintf(ncm->ethaddr, sizeof ncm->ethaddr,
-		"%02X%02X%02X%02X%02X%02X",
-		ethaddr[0], ethaddr[1], ethaddr[2],
-		ethaddr[3], ethaddr[4], ethaddr[5]);
+	snprintf(ncm->ethaddr, sizeof ncm->ethaddr, "%pm", ethaddr);
 	ncm_string_defs[1].s = ncm->ethaddr;
 
 	spin_lock_init(&ncm->lock);
diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c
index 5c1b68b63c9..3c126fde6e7 100644
--- a/drivers/usb/gadget/f_sourcesink.c
+++ b/drivers/usb/gadget/f_sourcesink.c
@@ -795,7 +795,7 @@ static int sourcesink_setup(struct usb_configuration *c,
 	u16			w_value = le16_to_cpu(ctrl->wValue);
 	u16			w_length = le16_to_cpu(ctrl->wLength);
 
-	req->length = USB_BUFSIZ;
+	req->length = USB_COMP_EP0_BUFSIZ;
 
 	/* composite driver infrastructure handles everything except
 	 * the two control test requests.
diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c
index 21ab474aca0..4060c0bd978 100644
--- a/drivers/usb/gadget/f_subset.c
+++ b/drivers/usb/gadget/f_subset.c
@@ -436,10 +436,7 @@ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
 		return -ENOMEM;
 
 	/* export host's Ethernet address in CDC format */
-	snprintf(geth->ethaddr, sizeof geth->ethaddr,
-		"%02X%02X%02X%02X%02X%02X",
-		ethaddr[0], ethaddr[1], ethaddr[2],
-		ethaddr[3], ethaddr[4], ethaddr[5]);
+	snprintf(geth->ethaddr, sizeof geth->ethaddr, "%pm", ethaddr);
 	geth_string_defs[1].s = geth->ethaddr;
 
 	geth->port.cdc_filter = DEFAULT_FILTER;
diff --git a/drivers/usb/gadget/f_uac2.c b/drivers/usb/gadget/f_uac2.c
index e7cc4de93e3..d3c6cffccb7 100644
--- a/drivers/usb/gadget/f_uac2.c
+++ b/drivers/usb/gadget/f_uac2.c
@@ -463,7 +463,7 @@ snd_fail:
 	return err;
 }
 
-static int __devexit snd_uac2_remove(struct platform_device *pdev)
+static int snd_uac2_remove(struct platform_device *pdev)
 {
 	struct snd_card *card = platform_get_drvdata(pdev);
 
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index a896d73f7a9..3f7d640b675 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -251,26 +251,12 @@
 #include <linux/freezer.h>
 #include <linux/utsname.h>
 
+#include <linux/usb/composite.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 
 #include "gadget_chips.h"
 
-
-
-/*
- * Kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
-/*-------------------------------------------------------------------------*/
-
 #define DRIVER_DESC		"File-backed Storage Gadget"
 #define DRIVER_NAME		"g_file_storage"
 #define DRIVER_VERSION		"1 September 2010"
@@ -3213,7 +3199,6 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
 static int __init check_parameters(struct fsg_dev *fsg)
 {
 	int	prot;
-	int	gcnum;
 
 	/* Store the default values */
 	mod_data.transport_type = USB_PR_BULK;
@@ -3228,16 +3213,8 @@ static int __init check_parameters(struct fsg_dev *fsg)
 	if (gadget_is_at91(fsg->gadget))
 		mod_data.can_stall = 0;
 
-	if (mod_data.release == 0xffff) {	// Parameter wasn't set
-		gcnum = usb_gadget_controller_number(fsg->gadget);
-		if (gcnum >= 0)
-			mod_data.release = 0x0300 + gcnum;
-		else {
-			WARNING(fsg, "controller '%s' not recognized\n",
-				fsg->gadget->name);
-			mod_data.release = 0x0399;
-		}
-	}
+	if (mod_data.release == 0xffff)
+		mod_data.release = get_default_bcdDevice();
 
 	prot = simple_strtol(mod_data.protocol_parm, NULL, 0);
 
@@ -3331,7 +3308,8 @@ static int __init check_parameters(struct fsg_dev *fsg)
 }
 
 
-static int __init fsg_bind(struct usb_gadget *gadget)
+static int __init fsg_bind(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
 {
 	struct fsg_dev		*fsg = the_fsg;
 	int			rc;
@@ -3603,9 +3581,10 @@ static void fsg_resume(struct usb_gadget *gadget)
 
 /*-------------------------------------------------------------------------*/
 
-static struct usb_gadget_driver		fsg_driver = {
+static __refdata struct usb_gadget_driver		fsg_driver = {
 	.max_speed	= USB_SPEED_SUPER,
 	.function	= (char *) fsg_string_product,
+	.bind		= fsg_bind,
 	.unbind		= fsg_unbind,
 	.disconnect	= fsg_disconnect,
 	.setup		= fsg_setup,
@@ -3653,7 +3632,8 @@ static int __init fsg_init(void)
 	if ((rc = fsg_alloc()) != 0)
 		return rc;
 	fsg = the_fsg;
-	if ((rc = usb_gadget_probe_driver(&fsg_driver, fsg_bind)) != 0)
+	rc = usb_gadget_probe_driver(&fsg_driver);
+	if (rc != 0)
 		kref_put(&fsg->ref, fsg_release);
 	return rc;
 }
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index 3def828f85e..6ae70cba0c4 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -1255,7 +1255,7 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on)
 }
 
 static int fsl_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int fsl_stop(struct usb_gadget_driver *driver);
 /* defined in gadget.h */
 static struct usb_gadget_ops fsl_gadget_ops = {
@@ -1951,7 +1951,7 @@ static irqreturn_t fsl_udc_irq(int irq, void *_udc)
  * Called by initialization code of gadget drivers
 *----------------------------------------------------------------*/
 static int fsl_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	int retval = -ENODEV;
 	unsigned long flags = 0;
@@ -1976,7 +1976,7 @@ static int fsl_start(struct usb_gadget_driver *driver,
 	spin_unlock_irqrestore(&udc_controller->lock, flags);
 
 	/* bind udc driver to gadget driver */
-	retval = bind(&udc_controller->gadget);
+	retval = bind(&udc_controller->gadget, driver);
 	if (retval) {
 		VDBG("bind to %s --> %d", driver->driver.name, retval);
 		udc_controller->gadget.dev.driver = NULL;
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index cdd94540e1c..72cd5e6719d 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -1311,7 +1311,7 @@ static void init_controller(struct fusb300 *fusb300)
 static struct fusb300 *the_controller;
 
 static int fusb300_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct fusb300 *fusb300 = the_controller;
 	int retval;
@@ -1339,7 +1339,7 @@ static int fusb300_udc_start(struct usb_gadget_driver *driver,
 		goto error;
 	}
 
-	retval = bind(&fusb300->gadget);
+	retval = bind(&fusb300->gadget, driver);
 	if (retval) {
 		pr_err("bind to driver error (%d)\n", retval);
 		device_del(&fusb300->gadget.dev);
diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index d3ace9002a6..3953dd4d718 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -13,7 +13,6 @@
 #define pr_fmt(fmt) "g_ffs: " fmt
 
 #include <linux/module.h>
-#include <linux/utsname.h>
 
 /*
  * kbuild is not very cooperative with respect to linking separately
@@ -22,12 +21,6 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
 #  if defined USB_ETH_RNDIS
 #    undef USB_ETH_RNDIS
@@ -76,6 +69,8 @@ struct gfs_ffs_obj {
 	struct ffs_data *ffs_data;
 };
 
+USB_GADGET_COMPOSITE_OPTIONS();
+
 static struct usb_device_descriptor gfs_dev_desc = {
 	.bLength		= sizeof gfs_dev_desc,
 	.bDescriptorType	= USB_DT_DEVICE,
@@ -117,6 +112,9 @@ static const struct usb_descriptor_header *gfs_otg_desc[] = {
 
 /* String IDs are assigned dynamically */
 static struct usb_string gfs_strings[] = {
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 #ifdef CONFIG_USB_FUNCTIONFS_RNDIS
 	{ .s = "FunctionFS + RNDIS" },
 #endif
@@ -163,13 +161,13 @@ static int gfs_bind(struct usb_composite_dev *cdev);
 static int gfs_unbind(struct usb_composite_dev *cdev);
 static int gfs_do_config(struct usb_configuration *c);
 
-static struct usb_composite_driver gfs_driver = {
+static __refdata struct usb_composite_driver gfs_driver = {
 	.name		= DRIVER_NAME,
 	.dev		= &gfs_dev_desc,
 	.strings	= gfs_dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= gfs_bind,
 	.unbind		= gfs_unbind,
-	.iProduct	= DRIVER_DESC,
 };
 
 static DEFINE_MUTEX(gfs_lock);
@@ -268,7 +266,7 @@ static int functionfs_ready_callback(struct ffs_data *ffs)
 	}
 	gfs_registered = true;
 
-	ret = usb_composite_probe(&gfs_driver, gfs_bind);
+	ret = usb_composite_probe(&gfs_driver);
 	if (unlikely(ret < 0))
 		gfs_registered = false;
 
@@ -357,6 +355,7 @@ static int gfs_bind(struct usb_composite_dev *cdev)
 	ret = usb_string_ids_tab(cdev, gfs_strings);
 	if (unlikely(ret < 0))
 		goto error;
+	gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id;
 
 	for (i = func_num; --i; ) {
 		ret = functionfs_bind(ffs_tab[i].ffs_data, cdev);
@@ -369,9 +368,10 @@ static int gfs_bind(struct usb_composite_dev *cdev)
 
 	for (i = 0; i < ARRAY_SIZE(gfs_configurations); ++i) {
 		struct gfs_configuration *c = gfs_configurations + i;
+		int sid = USB_GADGET_FIRST_AVAIL_IDX + i;
 
-		c->c.label			= gfs_strings[i].s;
-		c->c.iConfiguration		= gfs_strings[i].id;
+		c->c.label			= gfs_strings[sid].s;
+		c->c.iConfiguration		= gfs_strings[sid].id;
 		c->c.bConfigurationValue	= 1 + i;
 		c->c.bmAttributes		= USB_CONFIG_ATT_SELFPOWER;
 
@@ -379,7 +379,7 @@ static int gfs_bind(struct usb_composite_dev *cdev)
 		if (unlikely(ret < 0))
 			goto error_unbind;
 	}
-
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	return 0;
 
 error_unbind:
diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
index b8b3a341121..bcd04bc66b9 100644
--- a/drivers/usb/gadget/gadget_chips.h
+++ b/drivers/usb/gadget/gadget_chips.h
@@ -15,6 +15,8 @@
 #ifndef __GADGET_CHIPS_H
 #define __GADGET_CHIPS_H
 
+#include <linux/usb/gadget.h>
+
 /*
  * NOTICE: the entries below are alphabetical and should be kept
  * that way.
@@ -25,106 +27,12 @@
  * If you have forgotten the alphabetical order let VIM/EMACS
  * do that for you.
  */
-#define gadget_is_amd5536udc(g)		(!strcmp("amd5536udc", (g)->name))
 #define gadget_is_at91(g)		(!strcmp("at91_udc", (g)->name))
-#define gadget_is_atmel_usba(g)		(!strcmp("atmel_usba_udc", (g)->name))
-#define gadget_is_ci13xxx_msm(g)	(!strcmp("ci13xxx_msm", (g)->name))
-#define gadget_is_ci13xxx_pci(g)	(!strcmp("ci13xxx_pci", (g)->name))
-#define gadget_is_dummy(g)		(!strcmp("dummy_udc", (g)->name))
-#define gadget_is_dwc3(g)		(!strcmp("dwc3-gadget", (g)->name))
-#define gadget_is_fsl_qe(g)		(!strcmp("fsl_qe_udc", (g)->name))
-#define gadget_is_fsl_usb2(g)		(!strcmp("fsl-usb2-udc", (g)->name))
 #define gadget_is_goku(g)		(!strcmp("goku_udc", (g)->name))
-#define gadget_is_imx(g)		(!strcmp("imx_udc", (g)->name))
-#define gadget_is_langwell(g)		(!strcmp("langwell_udc", (g)->name))
-#define gadget_is_lpc32xx(g)		(!strcmp("lpc32xx_udc", (g)->name))
-#define gadget_is_m66592(g)		(!strcmp("m66592_udc", (g)->name))
 #define gadget_is_musbhdrc(g)		(!strcmp("musb-hdrc", (g)->name))
-#define gadget_is_net2272(g)		(!strcmp("net2272", (g)->name))
 #define gadget_is_net2280(g)		(!strcmp("net2280", (g)->name))
-#define gadget_is_omap(g)		(!strcmp("omap_udc", (g)->name))
-#define gadget_is_pch(g)		(!strcmp("pch_udc", (g)->name))
 #define gadget_is_pxa(g)		(!strcmp("pxa25x_udc", (g)->name))
 #define gadget_is_pxa27x(g)		(!strcmp("pxa27x_udc", (g)->name))
-#define gadget_is_r8a66597(g)		(!strcmp("r8a66597_udc", (g)->name))
-#define gadget_is_renesas_usbhs(g)	(!strcmp("renesas_usbhs_udc", (g)->name))
-#define gadget_is_s3c2410(g)		(!strcmp("s3c2410_udc", (g)->name))
-#define gadget_is_s3c_hsotg(g)		(!strcmp("s3c-hsotg", (g)->name))
-#define gadget_is_s3c_hsudc(g)		(!strcmp("s3c-hsudc", (g)->name))
-
-/**
- * usb_gadget_controller_number - support bcdDevice id convention
- * @gadget: the controller being driven
- *
- * Return a 2-digit BCD value associated with the peripheral controller,
- * suitable for use as part of a bcdDevice value, or a negative error code.
- *
- * NOTE:  this convention is purely optional, and has no meaning in terms of
- * any USB specification.  If you want to use a different convention in your
- * gadget driver firmware -- maybe a more formal revision ID -- feel free.
- *
- * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
- * to change their behavior accordingly.  For example it might help avoiding
- * some chip bug.
- */
-static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
-{
-	if (gadget_is_net2280(gadget))
-		return 0x01;
-	else if (gadget_is_dummy(gadget))
-		return 0x02;
-	else if (gadget_is_pxa(gadget))
-		return 0x03;
-	else if (gadget_is_goku(gadget))
-		return 0x06;
-	else if (gadget_is_omap(gadget))
-		return 0x08;
-	else if (gadget_is_pxa27x(gadget))
-		return 0x11;
-	else if (gadget_is_s3c2410(gadget))
-		return 0x12;
-	else if (gadget_is_at91(gadget))
-		return 0x13;
-	else if (gadget_is_imx(gadget))
-		return 0x14;
-	else if (gadget_is_musbhdrc(gadget))
-		return 0x16;
-	else if (gadget_is_atmel_usba(gadget))
-		return 0x18;
-	else if (gadget_is_fsl_usb2(gadget))
-		return 0x19;
-	else if (gadget_is_amd5536udc(gadget))
-		return 0x20;
-	else if (gadget_is_m66592(gadget))
-		return 0x21;
-	else if (gadget_is_fsl_qe(gadget))
-		return 0x22;
-	else if (gadget_is_ci13xxx_pci(gadget))
-		return 0x23;
-	else if (gadget_is_langwell(gadget))
-		return 0x24;
-	else if (gadget_is_r8a66597(gadget))
-		return 0x25;
-	else if (gadget_is_s3c_hsotg(gadget))
-		return 0x26;
-	else if (gadget_is_pch(gadget))
-		return 0x27;
-	else if (gadget_is_ci13xxx_msm(gadget))
-		return 0x28;
-	else if (gadget_is_renesas_usbhs(gadget))
-		return 0x29;
-	else if (gadget_is_s3c_hsudc(gadget))
-		return 0x30;
-	else if (gadget_is_net2272(gadget))
-		return 0x31;
-	else if (gadget_is_dwc3(gadget))
-		return 0x32;
-	else if (gadget_is_lpc32xx(gadget))
-		return 0x33;
-
-	return -ENOENT;
-}
-
 
 /**
  * gadget_supports_altsettings - return true if altsettings work
diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c
index 681bd038b1d..881aab86ae9 100644
--- a/drivers/usb/gadget/gmidi.c
+++ b/drivers/usb/gadget/gmidi.c
@@ -22,7 +22,6 @@
 
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/utsname.h>
 #include <linux/module.h>
 #include <linux/device.h>
 
@@ -31,16 +30,13 @@
 #include <sound/rawmidi.h>
 
 #include <linux/usb/ch9.h>
+#include <linux/usb/composite.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/audio.h>
 #include <linux/usb/midi.h>
 
 #include "gadget_chips.h"
 
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
 #include "f_midi.c"
 
 /*-------------------------------------------------------------------------*/
@@ -51,6 +47,8 @@ MODULE_LICENSE("GPL v2");
 static const char shortname[] = "g_midi";
 static const char longname[] = "MIDI Gadget";
 
+USB_GADGET_COMPOSITE_OPTIONS();
+
 static int index = SNDRV_DEFAULT_IDX1;
 module_param(index, int, S_IRUGO);
 MODULE_PARM_DESC(index, "Index value for the USB MIDI Gadget adapter.");
@@ -85,9 +83,7 @@ MODULE_PARM_DESC(out_ports, "Number of MIDI output ports");
 
 /* string IDs are assigned dynamically */
 
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-#define STRING_DESCRIPTION_IDX		2
+#define STRING_DESCRIPTION_IDX		USB_GADGET_FIRST_AVAIL_IDX
 
 static struct usb_device_descriptor device_desc = {
 	.bLength =		USB_DT_DEVICE_SIZE,
@@ -102,8 +98,9 @@ static struct usb_device_descriptor device_desc = {
 };
 
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s	= "Grey Innovation",
-	[STRING_PRODUCT_IDX].s		= "MIDI Gadget",
+	[USB_GADGET_MANUFACTURER_IDX].s	= "Grey Innovation",
+	[USB_GADGET_PRODUCT_IDX].s	= "MIDI Gadget",
+	[USB_GADGET_SERIAL_IDX].s	= "",
 	[STRING_DESCRIPTION_IDX].s	= "MIDI",
 	{  } /* end of list */
 };
@@ -140,61 +137,35 @@ static int __init midi_bind_config(struct usb_configuration *c)
 
 static int __init midi_bind(struct usb_composite_dev *cdev)
 {
-	struct usb_gadget *gadget = cdev->gadget;
-	int gcnum, status;
-
-	status = usb_string_id(cdev);
-	if (status < 0)
-		return status;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
+	int status;
 
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		return status;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
-
-	/* config description */
-	status = usb_string_id(cdev);
-	if (status < 0)
-		return status;
-	strings_dev[STRING_DESCRIPTION_IDX].id = status;
-
-	midi_config.iConfiguration = status;
-
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum < 0) {
-		/* gmidi is so simple (no altsettings) that
-		 * it SHOULD NOT have problems with bulk-capable hardware.
-		 * so warn about unrecognized controllers, don't panic.
-		 */
-		pr_warning("%s: controller '%s' not recognized\n",
-			   __func__, gadget->name);
-		device_desc.bcdDevice = cpu_to_le16(0x9999);
-	} else {
-		device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
-	}
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+	midi_config.iConfiguration = strings_dev[STRING_DESCRIPTION_IDX].id;
 
 	status = usb_add_config(cdev, &midi_config, midi_bind_config);
 	if (status < 0)
 		return status;
-
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	pr_info("%s\n", longname);
 	return 0;
 }
 
-static struct usb_composite_driver midi_driver = {
+static __refdata struct usb_composite_driver midi_driver = {
 	.name		= (char *) longname,
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= midi_bind,
 	.unbind		= __exit_p(midi_unbind),
 };
 
 static int __init midi_init(void)
 {
-	return usb_composite_probe(&midi_driver, midi_bind);
+	return usb_composite_probe(&midi_driver);
 }
 module_init(midi_init);
 
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index 9fd7886cfa9..51037cb7860 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -994,7 +994,7 @@ static int goku_get_frame(struct usb_gadget *_gadget)
 }
 
 static int goku_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int goku_stop(struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops goku_ops = {
@@ -1348,7 +1348,7 @@ static struct goku_udc	*the_controller;
  * the driver might get unbound.
  */
 static int goku_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct goku_udc	*dev = the_controller;
 	int			retval;
@@ -1368,7 +1368,7 @@ static int goku_start(struct usb_gadget_driver *driver,
 	driver->driver.bus = NULL;
 	dev->driver = driver;
 	dev->gadget.dev.driver = &driver->driver;
-	retval = bind(&dev->gadget);
+	retval = bind(&dev->gadget, driver);
 	if (retval) {
 		DBG(dev, "bind to driver %s --> error %d\n",
 				driver->driver.name, retval);
diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c
index 3493adf064f..74130f6c12c 100644
--- a/drivers/usb/gadget/hid.c
+++ b/drivers/usb/gadget/hid.c
@@ -15,7 +15,10 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/list.h>
+#include <linux/module.h>
+#include <linux/usb/composite.h>
 
+#include "gadget_chips.h"
 #define DRIVER_DESC		"HID Gadget"
 #define DRIVER_VERSION		"2010/03/16"
 
@@ -33,12 +36,6 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "f_hid.c"
 
 
@@ -50,6 +47,7 @@ struct hidg_func_node {
 static LIST_HEAD(hidg_func_list);
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
@@ -92,15 +90,10 @@ static const struct usb_descriptor_header *otg_desc[] = {
 
 
 /* string IDs are assigned dynamically */
-
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -150,7 +143,7 @@ static int __init hid_bind(struct usb_composite_dev *cdev)
 {
 	struct usb_gadget *gadget = cdev->gadget;
 	struct list_head *tmp;
-	int status, gcnum, funcs = 0;
+	int status, funcs = 0;
 
 	list_for_each(tmp, &hidg_func_list)
 		funcs++;
@@ -163,38 +156,22 @@ static int __init hid_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		return status;
 
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	else
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099);
-
-
 	/* Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
 
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		return status;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		return status;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register our configuration */
 	status = usb_add_config(cdev, &config_driver, do_config);
 	if (status < 0)
 		return status;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, DRIVER_DESC ", version: " DRIVER_VERSION "\n");
 
 	return 0;
@@ -242,11 +219,12 @@ static int __devexit hidg_plat_driver_remove(struct platform_device *pdev)
 /****************************** Some noise ******************************/
 
 
-static struct usb_composite_driver hidg_driver = {
+static __refdata struct usb_composite_driver hidg_driver = {
 	.name		= "g_hid",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= hid_bind,
 	.unbind		= __exit_p(hid_unbind),
 };
 
@@ -272,7 +250,7 @@ static int __init hidg_init(void)
 	if (status < 0)
 		return status;
 
-	status = usb_composite_probe(&hidg_driver, hid_bind);
+	status = usb_composite_probe(&hidg_driver);
 	if (status < 0)
 		platform_driver_unregister(&hidg_plat_driver);
 
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index dc5334856af..a0eb85794fd 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -35,7 +35,7 @@
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 
-#include <mach/usb.h>
+#include <linux/platform_data/usb-imx_udc.h>
 #include <mach/hardware.h>
 
 #include "imx_udc.h"
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index e58b1644297..76494cabf4e 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -828,7 +828,6 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		if (value == 0)
 			data->state = STATE_EP_ENABLED;
 		break;
-#ifdef	CONFIG_USB_GADGET_DUALSPEED
 	case USB_SPEED_HIGH:
 		/* fails if caller didn't provide that descriptor... */
 		ep->desc = &data->hs_desc;
@@ -836,7 +835,6 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		if (value == 0)
 			data->state = STATE_EP_ENABLED;
 		break;
-#endif
 	default:
 		DBG(data->dev, "unconnected, %s init abandoned\n",
 				data->name);
@@ -1324,7 +1322,6 @@ static const struct file_operations ep0_io_operations = {
  * Unrecognized ep0 requests may be handled in user space.
  */
 
-#ifdef	CONFIG_USB_GADGET_DUALSPEED
 static void make_qualifier (struct dev_data *dev)
 {
 	struct usb_qualifier_descriptor		qual;
@@ -1347,7 +1344,6 @@ static void make_qualifier (struct dev_data *dev)
 
 	memcpy (dev->rbuf, &qual, sizeof qual);
 }
-#endif
 
 static int
 config_buf (struct dev_data *dev, u8 type, unsigned index)
@@ -1427,7 +1423,6 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 			dev->dev->bMaxPacketSize0 = dev->gadget->ep0->maxpacket;
 			req->buf = dev->dev;
 			break;
-#ifdef	CONFIG_USB_GADGET_DUALSPEED
 		case USB_DT_DEVICE_QUALIFIER:
 			if (!dev->hs_config)
 				break;
@@ -1437,7 +1432,6 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 			break;
 		case USB_DT_OTHER_SPEED_CONFIG:
 			// FALLTHROUGH
-#endif
 		case USB_DT_CONFIG:
 			value = config_buf (dev,
 					w_value >> 8,
@@ -1685,8 +1679,8 @@ gadgetfs_unbind (struct usb_gadget *gadget)
 
 static struct dev_data		*the_device;
 
-static int
-gadgetfs_bind (struct usb_gadget *gadget)
+static int gadgetfs_bind(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
 {
 	struct dev_data		*dev = the_device;
 
@@ -1763,12 +1757,8 @@ gadgetfs_suspend (struct usb_gadget *gadget)
 }
 
 static struct usb_gadget_driver gadgetfs_driver = {
-#ifdef	CONFIG_USB_GADGET_DUALSPEED
-	.max_speed	= USB_SPEED_HIGH,
-#else
-	.max_speed	= USB_SPEED_FULL,
-#endif
 	.function	= (char *) driver_desc,
+	.bind		= gadgetfs_bind,
 	.unbind		= gadgetfs_unbind,
 	.setup		= gadgetfs_setup,
 	.disconnect	= gadgetfs_disconnect,
@@ -1783,7 +1773,8 @@ static struct usb_gadget_driver gadgetfs_driver = {
 
 static void gadgetfs_nop(struct usb_gadget *arg) { }
 
-static int gadgetfs_probe (struct usb_gadget *gadget)
+static int gadgetfs_probe(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
 {
 	CHIP = gadget->name;
 	return -EISNAM;
@@ -1791,6 +1782,7 @@ static int gadgetfs_probe (struct usb_gadget *gadget)
 
 static struct usb_gadget_driver probe_driver = {
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= gadgetfs_probe,
 	.unbind		= gadgetfs_nop,
 	.setup		= (void *)gadgetfs_nop,
 	.disconnect	= gadgetfs_nop,
@@ -1900,7 +1892,12 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 
 	/* triggers gadgetfs_bind(); then we can enumerate. */
 	spin_unlock_irq (&dev->lock);
-	value = usb_gadget_probe_driver(&gadgetfs_driver, gadgetfs_bind);
+	if (dev->hs_config)
+		gadgetfs_driver.max_speed = USB_SPEED_HIGH;
+	else
+		gadgetfs_driver.max_speed = USB_SPEED_FULL;
+
+	value = usb_gadget_probe_driver(&gadgetfs_driver);
 	if (value != 0) {
 		kfree (dev->buf);
 		dev->buf = NULL;
@@ -1988,8 +1985,8 @@ gadgetfs_make_inode (struct super_block *sb,
 	if (inode) {
 		inode->i_ino = get_next_ino();
 		inode->i_mode = mode;
-		inode->i_uid = default_uid;
-		inode->i_gid = default_gid;
+		inode->i_uid = make_kuid(&init_user_ns, default_uid);
+		inode->i_gid = make_kgid(&init_user_ns, default_gid);
 		inode->i_atime = inode->i_mtime = inode->i_ctime
 				= CURRENT_TIME;
 		inode->i_private = data;
@@ -2039,7 +2036,7 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 		return -ESRCH;
 
 	/* fake probe to determine $CHIP */
-	(void) usb_gadget_probe_driver(&probe_driver, gadgetfs_probe);
+	usb_gadget_probe_driver(&probe_driver);
 	if (!CHIP)
 		return -ENODEV;
 
diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c
index f1ec99e69cb..f696fb9b136 100644
--- a/drivers/usb/gadget/lpc32xx_udc.c
+++ b/drivers/usb/gadget/lpc32xx_udc.c
@@ -141,8 +141,6 @@ struct lpc32xx_ep {
 	u32                     totalints;
 
 	bool			wedge;
-
-	const struct usb_endpoint_descriptor *desc;
 };
 
 /*
@@ -556,10 +554,8 @@ static int proc_udc_show(struct seq_file *s, void *unused)
 
 	if (udc->enabled && udc->vbus) {
 		proc_ep_show(s, &udc->ep[0]);
-		list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) {
-			if (ep->desc)
-				proc_ep_show(s, ep);
-		}
+		list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list)
+			proc_ep_show(s, ep);
 	}
 
 	spin_unlock_irqrestore(&udc->lock, flags);
@@ -1453,7 +1449,6 @@ static void udc_reinit(struct lpc32xx_udc *udc)
 
 		if (i != 0)
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
-		ep->desc = NULL;
 		ep->ep.maxpacket = ep->maxpacket;
 		INIT_LIST_HEAD(&ep->queue);
 		ep->req_pending = 0;
@@ -1515,7 +1510,7 @@ static void nuke(struct lpc32xx_ep *ep, int status)
 		done(ep, req, status);
 	}
 
-	if (ep->desc && status == -ESHUTDOWN) {
+	if (status == -ESHUTDOWN) {
 		uda_disable_hwepint(ep->udc, ep->hwep_num);
 		udc_disable_hwep(ep->udc, ep->hwep_num);
 	}
@@ -1658,9 +1653,6 @@ static int lpc32xx_ep_disable(struct usb_ep *_ep)
 
 	nuke(ep, -ESHUTDOWN);
 
-	/* restore the endpoint's pristine config */
-	ep->desc = NULL;
-
 	/* Clear all DMA statuses for this EP */
 	udc_ep_dma_disable(udc, ep->hwep_num);
 	writel(1 << ep->hwep_num, USBD_EOTINTCLR(udc->udp_baseaddr));
@@ -1696,7 +1688,7 @@ static int lpc32xx_ep_enable(struct usb_ep *_ep,
 	unsigned long flags;
 
 	/* Verify EP data */
-	if ((!_ep) || (!ep) || (!desc) || (ep->desc) ||
+	if ((!_ep) || (!ep) || (!desc) ||
 	    (desc->bDescriptorType != USB_DT_ENDPOINT)) {
 		dev_dbg(udc->dev, "bad ep or descriptor\n");
 		return -EINVAL;
@@ -1754,7 +1746,6 @@ static int lpc32xx_ep_enable(struct usb_ep *_ep,
 
 	/* Initialize endpoint to match the selected descriptor */
 	ep->is_in = (desc->bEndpointAddress & USB_DIR_IN) != 0;
-	ep->desc = desc;
 	ep->ep.maxpacket = maxpacket;
 
 	/* Map hardware endpoint from base and direction */
@@ -1837,7 +1828,7 @@ static int lpc32xx_ep_queue(struct usb_ep *_ep,
 
 	udc = ep->udc;
 
-	if (!_ep || (!ep->desc && ep->hwep_num_base != 0)) {
+	if (!_ep) {
 		dev_dbg(udc->dev, "invalid ep\n");
 		return -EINVAL;
 	}
@@ -1976,7 +1967,7 @@ static int lpc32xx_ep_set_halt(struct usb_ep *_ep, int value)
 	struct lpc32xx_udc *udc = ep->udc;
 	unsigned long flags;
 
-	if ((!ep) || (ep->desc == NULL) || (ep->hwep_num <= 1))
+	if ((!ep) || (ep->hwep_num <= 1))
 		return -EINVAL;
 
 	/* Don't halt an IN EP */
@@ -2262,7 +2253,7 @@ static int udc_get_status(struct lpc32xx_udc *udc, u16 reqtype, u16 wIndex)
 	case USB_RECIP_ENDPOINT:
 		tmp = wIndex & USB_ENDPOINT_NUMBER_MASK;
 		ep = &udc->ep[tmp];
-		if ((tmp == 0) || (tmp >= NUM_ENDPOINTS) || (tmp && !ep->desc))
+		if ((tmp == 0) || (tmp >= NUM_ENDPOINTS))
 			return -EOPNOTSUPP;
 
 		if (wIndex & USB_DIR_IN) {
@@ -2599,9 +2590,8 @@ static int lpc32xx_pullup(struct usb_gadget *gadget, int is_on)
 	return 0;
 }
 
-static int lpc32xx_start(struct usb_gadget_driver *driver,
-			 int (*bind)(struct usb_gadget *));
-static int lpc32xx_stop(struct usb_gadget_driver *driver);
+static int lpc32xx_start(struct usb_gadget *, struct usb_gadget_driver *);
+static int lpc32xx_stop(struct usb_gadget *, struct usb_gadget_driver *);
 
 static const struct usb_gadget_ops lpc32xx_udc_ops = {
 	.get_frame		= lpc32xx_get_frame,
@@ -2609,8 +2599,8 @@ static const struct usb_gadget_ops lpc32xx_udc_ops = {
 	.set_selfpowered	= lpc32xx_set_selfpowered,
 	.vbus_session		= lpc32xx_vbus_session,
 	.pullup			= lpc32xx_pullup,
-	.start			= lpc32xx_start,
-	.stop			= lpc32xx_stop,
+	.udc_start		= lpc32xx_start,
+	.udc_stop		= lpc32xx_stop,
 };
 
 static void nop_release(struct device *dev)
@@ -2618,10 +2608,9 @@ static void nop_release(struct device *dev)
 	/* nothing to free */
 }
 
-static struct lpc32xx_udc controller = {
+static const struct lpc32xx_udc controller_template = {
 	.gadget = {
 		.ops	= &lpc32xx_udc_ops,
-		.ep0	= &controller.ep[0].ep,
 		.name	= driver_name,
 		.dev	= {
 			.init_name = "gadget",
@@ -2633,7 +2622,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep0",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 0,
 		.hwep_num	= 0, /* Can be 0 or 1, has special handling */
@@ -2645,7 +2633,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep1-int",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 2,
 		.hwep_num	= 0, /* 2 or 3, will be set later */
@@ -2657,7 +2644,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep2-bulk",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 4,
 		.hwep_num	= 0, /* 4 or 5, will be set later */
@@ -2669,7 +2655,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep3-iso",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 1023,
 		.hwep_num_base	= 6,
 		.hwep_num	= 0, /* 6 or 7, will be set later */
@@ -2681,7 +2666,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep4-int",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 8,
 		.hwep_num	= 0, /* 8 or 9, will be set later */
@@ -2693,7 +2677,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep5-bulk",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 10,
 		.hwep_num	= 0, /* 10 or 11, will be set later */
@@ -2705,7 +2688,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep6-iso",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 1023,
 		.hwep_num_base	= 12,
 		.hwep_num	= 0, /* 12 or 13, will be set later */
@@ -2717,7 +2699,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep7-int",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 14,
 		.hwep_num	= 0,
@@ -2729,7 +2710,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep8-bulk",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 16,
 		.hwep_num	= 0,
@@ -2741,7 +2721,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep9-iso",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 1023,
 		.hwep_num_base	= 18,
 		.hwep_num	= 0,
@@ -2753,7 +2732,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep10-int",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 20,
 		.hwep_num	= 0,
@@ -2765,7 +2743,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep11-bulk",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 22,
 		.hwep_num	= 0,
@@ -2777,7 +2754,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep12-iso",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 1023,
 		.hwep_num_base	= 24,
 		.hwep_num	= 0,
@@ -2789,7 +2765,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep13-int",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 26,
 		.hwep_num	= 0,
@@ -2801,7 +2776,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep14-bulk",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 64,
 		.hwep_num_base	= 28,
 		.hwep_num	= 0,
@@ -2813,7 +2787,6 @@ static struct lpc32xx_udc controller = {
 			.name	= "ep15-bulk",
 			.ops	= &lpc32xx_ep_ops,
 		},
-		.udc		= &controller,
 		.maxpacket	= 1023,
 		.hwep_num_base	= 30,
 		.hwep_num	= 0,
@@ -2987,14 +2960,13 @@ static irqreturn_t lpc32xx_usb_vbus_irq(int irq, void *_udc)
 	return IRQ_HANDLED;
 }
 
-static int lpc32xx_start(struct usb_gadget_driver *driver,
-			 int (*bind)(struct usb_gadget *))
+static int lpc32xx_start(struct usb_gadget *gadget,
+			 struct usb_gadget_driver *driver)
 {
-	struct lpc32xx_udc *udc = &controller;
-	int retval, i;
+	struct lpc32xx_udc *udc = to_udc(gadget);
+	int i;
 
-	if (!driver || driver->max_speed < USB_SPEED_FULL ||
-	    !bind || !driver->setup) {
+	if (!driver || driver->max_speed < USB_SPEED_FULL || !driver->setup) {
 		dev_err(udc->dev, "bad parameter.\n");
 		return -EINVAL;
 	}
@@ -3011,18 +2983,6 @@ static int lpc32xx_start(struct usb_gadget_driver *driver,
 	udc->selfpowered = 1;
 	udc->vbus = 0;
 
-	retval = bind(&udc->gadget);
-	if (retval) {
-		dev_err(udc->dev, "bind() returned %d\n", retval);
-		udc->enabled = 0;
-		udc->selfpowered = 0;
-		udc->driver = NULL;
-		udc->gadget.dev.driver = NULL;
-		return retval;
-	}
-
-	dev_dbg(udc->dev, "bound to %s\n", driver->driver.name);
-
 	/* Force VBUS process once to check for cable insertion */
 	udc->last_vbus = udc->vbus = 0;
 	schedule_work(&udc->vbus_job);
@@ -3034,22 +2994,19 @@ static int lpc32xx_start(struct usb_gadget_driver *driver,
 	return 0;
 }
 
-static int lpc32xx_stop(struct usb_gadget_driver *driver)
+static int lpc32xx_stop(struct usb_gadget *gadget,
+			struct usb_gadget_driver *driver)
 {
 	int i;
-	struct lpc32xx_udc *udc = &controller;
+	struct lpc32xx_udc *udc = to_udc(gadget);
 
-	if (!driver || driver != udc->driver || !driver->unbind)
+	if (!driver || driver != udc->driver)
 		return -EINVAL;
 
-	/* Disable USB pullup */
-	isp1301_pullup_enable(udc, 0, 1);
-
 	for (i = IRQ_USB_LP; i <= IRQ_USB_ATX; i++)
 		disable_irq(udc->udp_irq[i]);
 
 	if (udc->clocked) {
-
 		spin_lock(&udc->lock);
 		stop_activity(udc);
 		spin_unlock(&udc->lock);
@@ -3069,20 +3026,16 @@ static int lpc32xx_stop(struct usb_gadget_driver *driver)
 	}
 
 	udc->enabled = 0;
-	pullup(udc, 0);
-
-	driver->unbind(&udc->gadget);
 	udc->gadget.dev.driver = NULL;
 	udc->driver = NULL;
 
-	dev_dbg(udc->dev, "unbound from %s\n", driver->driver.name);
 	return 0;
 }
 
 static void lpc32xx_udc_shutdown(struct platform_device *dev)
 {
 	/* Force disconnect on reboot */
-	struct lpc32xx_udc *udc = &controller;
+	struct lpc32xx_udc *udc = platform_get_drvdata(dev);
 
 	pullup(udc, 0);
 }
@@ -3120,12 +3073,21 @@ static u64 lpc32xx_usbd_dmamask = ~(u32) 0x7F;
 static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct lpc32xx_udc *udc = &controller;
+	struct lpc32xx_udc *udc;
 	int retval, i;
 	struct resource *res;
 	dma_addr_t dma_handle;
 	struct device_node *isp1301_node;
 
+	udc = kzalloc(sizeof(*udc), GFP_KERNEL);
+	if (!udc)
+		return -ENOMEM;
+
+	memcpy(udc, &controller_template, sizeof(*udc));
+	for (i = 0; i <= 15; i++)
+		udc->ep[i].udc = udc;
+	udc->gadget.ep0 = &udc->ep[0].ep;
+
 	/* init software state */
 	udc->gadget.dev.parent = dev;
 	udc->pdev = pdev;
@@ -3140,8 +3102,10 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 	}
 
 	udc->isp1301_i2c_client = isp1301_get_client(isp1301_node);
-	if (!udc->isp1301_i2c_client)
-		return -EPROBE_DEFER;
+	if (!udc->isp1301_i2c_client) {
+		retval = -EPROBE_DEFER;
+		goto phy_fail;
+	}
 
 	dev_info(udc->dev, "ISP1301 I2C device at address 0x%x\n",
 		 udc->isp1301_i2c_client->addr);
@@ -3160,8 +3124,10 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 	 *  IORESOURCE_IRQ, USB transceiver interrupt number
 	 */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENXIO;
+	if (!res) {
+		retval = -ENXIO;
+		goto resource_fail;
+	}
 
 	spin_lock_init(&udc->lock);
 
@@ -3171,7 +3137,8 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 		if (udc->udp_irq[i] < 0) {
 			dev_err(udc->dev,
 				"irq resource %d not available!\n", i);
-			return udc->udp_irq[i];
+			retval = udc->udp_irq[i];
+			goto irq_fail;
 		}
 	}
 
@@ -3179,7 +3146,8 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 	udc->io_p_size = resource_size(res);
 	if (!request_mem_region(udc->io_p_start, udc->io_p_size, driver_name)) {
 		dev_err(udc->dev, "someone's using UDC memory\n");
-		return -EBUSY;
+		retval = -EBUSY;
+		goto request_mem_region_fail;
 	}
 
 	udc->udp_baseaddr = ioremap(udc->io_p_start, udc->io_p_size);
@@ -3208,7 +3176,7 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 	udc->usb_otg_clk = clk_get(&pdev->dev, "ck_usb_otg");
 	if (IS_ERR(udc->usb_otg_clk)) {
 		dev_err(udc->dev, "failed to acquire USB otg clock\n");
-		retval = PTR_ERR(udc->usb_slv_clk);
+		retval = PTR_ERR(udc->usb_otg_clk);
 		goto usb_otg_clk_get_fail;
 	}
 
@@ -3376,7 +3344,11 @@ pll_get_fail:
 io_map_fail:
 	release_mem_region(udc->io_p_start, udc->io_p_size);
 	dev_err(udc->dev, "%s probe failed, %d\n", driver_name, retval);
-
+request_mem_region_fail:
+irq_fail:
+resource_fail:
+phy_fail:
+	kfree(udc);
 	return retval;
 }
 
@@ -3414,6 +3386,7 @@ static int __devexit lpc32xx_udc_remove(struct platform_device *pdev)
 	clk_put(udc->usb_pll_clk);
 	iounmap(udc->udp_baseaddr);
 	release_mem_region(udc->io_p_start, udc->io_p_size);
+	kfree(udc);
 
 	return 0;
 }
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index cf6bd626f3f..b6401f1b56c 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1466,7 +1466,7 @@ static struct usb_ep_ops m66592_ep_ops = {
 static struct m66592 *the_controller;
 
 static int m66592_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct m66592 *m66592 = the_controller;
 	int retval;
@@ -1492,7 +1492,7 @@ static int m66592_start(struct usb_gadget_driver *driver,
 		goto error;
 	}
 
-	retval = bind(&m66592->gadget);
+	retval = bind(&m66592->gadget, driver);
 	if (retval) {
 		pr_err("bind to driver error (%d)\n", retval);
 		device_del(&m66592->gadget.dev);
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index 1f376eba31f..080e577773d 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -29,9 +29,8 @@
 
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
 #include <linux/usb/ch9.h>
-
+#include <linux/module.h>
 
 /*-------------------------------------------------------------------------*/
 
@@ -47,14 +46,10 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
 #include "f_mass_storage.c"
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 static struct usb_device_descriptor msg_device_desc = {
 	.bLength =		sizeof msg_device_desc,
@@ -85,6 +80,22 @@ static const struct usb_descriptor_header *otg_desc[] = {
 	NULL,
 };
 
+static struct usb_string strings_dev[] = {
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
+	{  } /* end of list */
+};
+
+static struct usb_gadget_strings stringtab_dev = {
+	.language       = 0x0409,       /* en-us */
+	.strings        = strings_dev,
+};
+
+static struct usb_gadget_strings *dev_strings[] = {
+	&stringtab_dev,
+	NULL,
+};
 
 /****************************** Configurations ******************************/
 
@@ -143,10 +154,15 @@ static int __init msg_bind(struct usb_composite_dev *cdev)
 {
 	int status;
 
-	status = usb_add_config(cdev, &msg_config_driver, msg_do_config);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		return status;
+	msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
+	status = usb_add_config(cdev, &msg_config_driver, msg_do_config);
+	if (status < 0)
+		return status;
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&cdev->gadget->dev,
 		 DRIVER_DESC ", version: " DRIVER_VERSION "\n");
 	set_bit(0, &msg_registered);
@@ -156,12 +172,13 @@ static int __init msg_bind(struct usb_composite_dev *cdev)
 
 /****************************** Some noise ******************************/
 
-static struct usb_composite_driver msg_driver = {
+static __refdata struct usb_composite_driver msg_driver = {
 	.name		= "g_mass_storage",
 	.dev		= &msg_device_desc,
-	.iProduct	= DRIVER_DESC,
 	.max_speed	= USB_SPEED_SUPER,
 	.needs_serial	= 1,
+	.strings	= dev_strings,
+	.bind		= msg_bind,
 };
 
 MODULE_DESCRIPTION(DRIVER_DESC);
@@ -170,7 +187,7 @@ MODULE_LICENSE("GPL");
 
 static int __init msg_init(void)
 {
-	return usb_composite_probe(&msg_driver, msg_bind);
+	return usb_composite_probe(&msg_driver);
 }
 module_init(msg_init);
 
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index c37fb33a3d1..88472bf7dbb 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -14,10 +14,8 @@
 
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
 #include <linux/module.h>
 
-
 #if defined USB_ETH_RNDIS
 #  undef USB_ETH_RNDIS
 #endif
@@ -42,12 +40,6 @@ MODULE_LICENSE("GPL");
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "f_mass_storage.c"
 
 #include "u_serial.c"
@@ -61,7 +53,7 @@ MODULE_LICENSE("GPL");
 #endif
 #include "u_ether.c"
 
-
+USB_GADGET_COMPOSITE_OPTIONS();
 
 /***************************** Device Descriptor ****************************/
 
@@ -112,21 +104,16 @@ static const struct usb_descriptor_header *otg_desc[] = {
 
 
 enum {
-#ifdef CONFIG_USB_G_MULTI_RNDIS
-	MULTI_STRING_RNDIS_CONFIG_IDX,
-#endif
-#ifdef CONFIG_USB_G_MULTI_CDC
+	MULTI_STRING_RNDIS_CONFIG_IDX = USB_GADGET_FIRST_AVAIL_IDX,
 	MULTI_STRING_CDC_CONFIG_IDX,
-#endif
 };
 
 static struct usb_string strings_dev[] = {
-#ifdef CONFIG_USB_G_MULTI_RNDIS
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	[MULTI_STRING_RNDIS_CONFIG_IDX].s = "Multifunction with RNDIS",
-#endif
-#ifdef CONFIG_USB_G_MULTI_CDC
 	[MULTI_STRING_CDC_CONFIG_IDX].s   = "Multifunction with CDC ECM",
-#endif
 	{  } /* end of list */
 };
 
@@ -260,7 +247,7 @@ static int cdc_config_register(struct usb_composite_dev *cdev)
 static int __ref multi_bind(struct usb_composite_dev *cdev)
 {
 	struct usb_gadget *gadget = cdev->gadget;
-	int status, gcnum;
+	int status;
 
 	if (!can_support_ecm(cdev->gadget)) {
 		dev_err(&gadget->dev, "controller '%s' not usable\n",
@@ -288,19 +275,11 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 		}
 	}
 
-	/* set bcdDevice */
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0) {
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	} else {
-		WARNING(cdev, "controller '%s' not recognized\n", gadget->name);
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099);
-	}
-
 	/* allocate string IDs */
 	status = usb_string_ids_tab(cdev, strings_dev);
 	if (unlikely(status < 0))
 		goto fail2;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register configurations */
 	status = rndis_config_register(cdev);
@@ -310,6 +289,7 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 	status = cdc_config_register(cdev);
 	if (unlikely(status < 0))
 		goto fail2;
+	usb_composite_overwrite_options(cdev, &coverwrite);
 
 	/* we're done */
 	dev_info(&gadget->dev, DRIVER_DESC "\n");
@@ -338,20 +318,20 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
 /****************************** Some noise ******************************/
 
 
-static struct usb_composite_driver multi_driver = {
+static __refdata struct usb_composite_driver multi_driver = {
 	.name		= "g_multi",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= multi_bind,
 	.unbind		= __exit_p(multi_unbind),
-	.iProduct	= DRIVER_DESC,
 	.needs_serial	= 1,
 };
 
 
 static int __init multi_init(void)
 {
-	return usb_composite_probe(&multi_driver, multi_bind);
+	return usb_composite_probe(&multi_driver);
 }
 module_init(multi_init);
 
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index 75db2c306ce..ea45224f78c 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -51,9 +51,8 @@
 #define EPSTATUS_TIMEOUT	10000
 #define PRIME_TIMEOUT		10000
 #define READSAFE_TIMEOUT	1000
-#define DTD_TIMEOUT		1000
 
-#define LOOPS_USEC_SHIFT	4
+#define LOOPS_USEC_SHIFT	1
 #define LOOPS_USEC		(1 << LOOPS_USEC_SHIFT)
 #define LOOPS(timeout)		((timeout) >> LOOPS_USEC_SHIFT)
 
@@ -64,7 +63,6 @@ static const char driver_desc[] = DRIVER_DESC;
 
 /* controller device global variable */
 static struct mv_udc	*the_controller;
-int mv_usb_otgsc;
 
 static void nuke(struct mv_ep *ep, int status);
 static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver);
@@ -357,17 +355,24 @@ done:
 	return retval;
 }
 
-
 static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length,
 		dma_addr_t *dma, int *is_last)
 {
-	u32 temp;
 	struct mv_dtd *dtd;
 	struct mv_udc *udc;
+	struct mv_dqh *dqh;
+	u32 temp, mult = 0;
 
 	/* how big will this transfer be? */
-	*length = min(req->req.length - req->req.actual,
-			(unsigned)EP_MAX_LENGTH_TRANSFER);
+	if (usb_endpoint_xfer_isoc(req->ep->ep.desc)) {
+		dqh = req->ep->dqh;
+		mult = (dqh->max_packet_length >> EP_QUEUE_HEAD_MULT_POS)
+				& 0x3;
+		*length = min(req->req.length - req->req.actual,
+				(unsigned)(mult * req->ep->ep.maxpacket));
+	} else
+		*length = min(req->req.length - req->req.actual,
+				(unsigned)EP_MAX_LENGTH_TRANSFER);
 
 	udc = req->ep->udc;
 
@@ -375,7 +380,7 @@ static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length,
 	 * Be careful that no _GFP_HIGHMEM is set,
 	 * or we can not use dma_to_virt
 	 */
-	dtd = dma_pool_alloc(udc->dtd_pool, GFP_KERNEL, dma);
+	dtd = dma_pool_alloc(udc->dtd_pool, GFP_ATOMIC, dma);
 	if (dtd == NULL)
 		return dtd;
 
@@ -409,6 +414,8 @@ static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length,
 	if (*is_last && !req->req.no_interrupt)
 		temp |= DTD_IOC;
 
+	temp |= mult << 10;
+
 	dtd->size_ioc_sts = temp;
 
 	mb();
@@ -708,6 +715,7 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 	struct mv_req *req = container_of(_req, struct mv_req, req);
 	struct mv_udc *udc = ep->udc;
 	unsigned long flags;
+	int retval;
 
 	/* catch various bogus parameters */
 	if (!_req || !req->req.complete || !req->req.buf
@@ -719,10 +727,6 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 		dev_err(&udc->dev->dev, "%s, bad ep", __func__);
 		return -EINVAL;
 	}
-	if (ep->ep.desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
-		if (req->req.length > ep->ep.maxpacket)
-			return -EMSGSIZE;
-	}
 
 	udc = ep->udc;
 	if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
@@ -755,15 +759,17 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 
 	/* build dtds and push them to device queue */
 	if (!req_to_dtd(req)) {
-		int retval;
 		retval = queue_dtd(ep, req);
 		if (retval) {
 			spin_unlock_irqrestore(&udc->lock, flags);
-			return retval;
+			dev_err(&udc->dev->dev, "Failed to queue dtd\n");
+			goto err_unmap_dma;
 		}
 	} else {
 		spin_unlock_irqrestore(&udc->lock, flags);
-		return -ENOMEM;
+		dev_err(&udc->dev->dev, "Failed to dma_pool_alloc\n");
+		retval = -ENOMEM;
+		goto err_unmap_dma;
 	}
 
 	/* Update ep0 state */
@@ -775,6 +781,22 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 	spin_unlock_irqrestore(&udc->lock, flags);
 
 	return 0;
+
+err_unmap_dma:
+	if (req->mapped) {
+		dma_unmap_single(ep->udc->gadget.dev.parent,
+				req->req.dma, req->req.length,
+				((ep_dir(ep) == EP_DIR_IN) ?
+				DMA_TO_DEVICE : DMA_FROM_DEVICE));
+		req->req.dma = DMA_ADDR_INVALID;
+		req->mapped = 0;
+	} else
+		dma_sync_single_for_cpu(ep->udc->gadget.dev.parent,
+				req->req.dma, req->req.length,
+				((ep_dir(ep) == EP_DIR_IN) ?
+				DMA_TO_DEVICE : DMA_FROM_DEVICE));
+
+	return retval;
 }
 
 static void mv_prime_ep(struct mv_ep *ep, struct mv_req *req)
@@ -1065,7 +1087,7 @@ static int udc_reset(struct mv_udc *udc)
 	tmp |= USBMODE_CTRL_MODE_DEVICE;
 
 	/* turn setup lockout off, require setup tripwire in usbcmd */
-	tmp |= USBMODE_SETUP_LOCK_OFF | USBMODE_STREAM_DISABLE;
+	tmp |= USBMODE_SETUP_LOCK_OFF;
 
 	writel(tmp, &udc->op_regs->usbmode);
 
@@ -1199,12 +1221,16 @@ static int mv_udc_vbus_session(struct usb_gadget *gadget, int is_active)
 			udc_start(udc);
 		}
 	} else if (udc->driver && udc->softconnect) {
+		if (!udc->active)
+			goto out;
+
 		/* stop all the transfer in queue*/
 		stop_activity(udc, udc->driver);
 		udc_stop(udc);
 		mv_udc_disable(udc);
 	}
 
+out:
 	spin_unlock_irqrestore(&udc->lock, flags);
 	return retval;
 }
@@ -1243,7 +1269,7 @@ static int mv_udc_pullup(struct usb_gadget *gadget, int is_on)
 }
 
 static int mv_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int mv_udc_stop(struct usb_gadget_driver *driver);
 /* device controller usb_gadget_ops structure */
 static const struct usb_gadget_ops mv_ops = {
@@ -1348,7 +1374,7 @@ static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver)
 }
 
 static int mv_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct mv_udc *udc = the_controller;
 	int retval = 0;
@@ -1373,7 +1399,7 @@ static int mv_udc_start(struct usb_gadget_driver *driver,
 
 	spin_unlock_irqrestore(&udc->lock, flags);
 
-	retval = bind(&udc->gadget);
+	retval = bind(&udc->gadget, driver);
 	if (retval) {
 		dev_err(&udc->dev->dev, "bind to driver %s --> %d\n",
 				driver->driver.name, retval);
@@ -1499,15 +1525,17 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
 	}
 
 	/* prime the data phase */
-	if (!req_to_dtd(req))
+	if (!req_to_dtd(req)) {
 		retval = queue_dtd(ep, req);
-	else{	/* no mem */
+		if (retval) {
+			dev_err(&udc->dev->dev,
+				"Failed to queue dtd when prime status\n");
+			goto out;
+		}
+	} else{	/* no mem */
 		retval = -ENOMEM;
-		goto out;
-	}
-
-	if (retval) {
-		dev_err(&udc->dev->dev, "response error on GET_STATUS request\n");
+		dev_err(&udc->dev->dev,
+			"Failed to dma_pool_alloc when prime status\n");
 		goto out;
 	}
 
@@ -1515,6 +1543,15 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
 
 	return 0;
 out:
+	if (req->mapped) {
+		dma_unmap_single(ep->udc->gadget.dev.parent,
+				req->req.dma, req->req.length,
+				((ep_dir(ep) == EP_DIR_IN) ?
+				DMA_TO_DEVICE : DMA_FROM_DEVICE));
+		req->req.dma = DMA_ADDR_INVALID;
+		req->mapped = 0;
+	}
+
 	return retval;
 }
 
@@ -2468,9 +2505,11 @@ static void mv_udc_shutdown(struct platform_device *dev)
 	u32 mode;
 
 	/* reset controller mode to IDLE */
+	mv_udc_enable(udc);
 	mode = readl(&udc->op_regs->usbmode);
 	mode &= ~3;
 	writel(mode, &udc->op_regs->usbmode);
+	mv_udc_disable(udc);
 }
 
 static struct platform_driver udc_driver = {
diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c
index 89530034dff..a22ad9af056 100644
--- a/drivers/usb/gadget/ncm.c
+++ b/drivers/usb/gadget/ncm.c
@@ -20,8 +20,8 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
-
+#include <linux/module.h>
+#include <linux/usb/composite.h>
 
 #include "u_ether.h"
 
@@ -36,11 +36,6 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "f_ncm.c"
 #include "u_ether.c"
 
@@ -57,6 +52,7 @@
 #define CDC_PRODUCT_NUM		0xa4a1	/* Linux-USB Ethernet Gadget */
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
@@ -97,17 +93,11 @@ static const struct usb_descriptor_header *otg_desc[] = {
 	NULL,
 };
 
-
 /* string IDs are assigned dynamically */
-
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-
-static char manufacturer[50];
-
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	{  } /* end of list */
 };
 
@@ -149,7 +139,6 @@ static struct usb_configuration ncm_config_driver = {
 
 static int __init gncm_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	struct usb_gadget	*gadget = cdev->gadget;
 	int			status;
 
@@ -158,48 +147,22 @@ static int __init gncm_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		return status;
 
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
-	else {
-		/* We assume that can_support_ecm() tells the truth;
-		 * but if the controller isn't recognized at all then
-		 * that assumption is a bit more likely to be wrong.
-		 */
-		dev_warn(&gadget->dev,
-			 "controller '%s' not recognized; trying %s\n",
-			 gadget->name,
-			 ncm_config_driver.label);
-		device_desc.bcdDevice =
-			cpu_to_le16(0x0300 | 0x0099);
-	}
-
-
 	/* Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
 
-	/* device descriptor strings: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-	device_desc.iProduct = status;
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	status = usb_add_config(cdev, &ncm_config_driver,
 				ncm_do_config);
 	if (status < 0)
 		goto fail;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s\n", DRIVER_DESC);
 
 	return 0;
@@ -215,11 +178,12 @@ static int __exit gncm_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver ncm_driver = {
+static __refdata struct usb_composite_driver ncm_driver = {
 	.name		= "g_ncm",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= gncm_bind,
 	.unbind		= __exit_p(gncm_unbind),
 };
 
@@ -229,7 +193,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-	return usb_composite_probe(&ncm_driver, gncm_bind);
+	return usb_composite_probe(&ncm_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index c7fb7723c01..661600abace 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -16,7 +16,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
 #include <linux/device.h>
 
 #include "u_serial.h"
@@ -38,11 +37,6 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "u_serial.c"
 #include "f_acm.c"
 #include "f_ecm.c"
@@ -52,23 +46,23 @@
 #include "u_ether.c"
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 #define NOKIA_VENDOR_ID			0x0421	/* Nokia */
 #define NOKIA_PRODUCT_ID		0x01c8	/* Nokia Gadget */
 
 /* string IDs are assigned dynamically */
 
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-#define STRING_DESCRIPTION_IDX		2
+#define STRING_DESCRIPTION_IDX		USB_GADGET_FIRST_AVAIL_IDX
 
 static char manufacturer_nokia[] = "Nokia";
 static const char product_nokia[] = NOKIA_LONG_NAME;
 static const char description_nokia[] = "PC-Suite Configuration";
 
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer_nokia,
-	[STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME,
+	[USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia,
+	[USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	[STRING_DESCRIPTION_IDX].s = description_nokia,
 	{  } /* end of list */
 };
@@ -90,6 +84,7 @@ static struct usb_device_descriptor device_desc = {
 	.bDeviceClass		= USB_CLASS_COMM,
 	.idVendor		= __constant_cpu_to_le16(NOKIA_VENDOR_ID),
 	.idProduct		= __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
+	.bcdDevice		= cpu_to_le16(NOKIA_VERSION_NUM),
 	/* .iManufacturer = DYNAMIC */
 	/* .iProduct = DYNAMIC */
 	.bNumConfigurations =	1,
@@ -151,7 +146,6 @@ static struct usb_configuration nokia_config_100ma_driver = {
 
 static int __init nokia_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
 	struct usb_gadget	*gadget = cdev->gadget;
 	int			status;
 
@@ -167,41 +161,17 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		goto err_ether;
 
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto err_usb;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto err_usb;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-
-	device_desc.iProduct = status;
-
-	/* config description */
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto err_usb;
-	strings_dev[STRING_DESCRIPTION_IDX].id = status;
-
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+	status = strings_dev[STRING_DESCRIPTION_IDX].id;
 	nokia_config_500ma_driver.iConfiguration = status;
 	nokia_config_100ma_driver.iConfiguration = status;
 
-	/* set up other descriptors */
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
-	else {
-		/* this should only work with hw that supports altsettings
-		 * and several endpoints, anything else, panic.
-		 */
-		pr_err("nokia_bind: controller '%s' not recognized\n",
-			gadget->name);
+	if (!gadget_supports_altsettings(gadget))
 		goto err_usb;
-	}
 
 	/* finally register the configuration */
 	status = usb_add_config(cdev, &nokia_config_500ma_driver,
@@ -214,6 +184,7 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		goto err_usb;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
 
 	return 0;
@@ -237,17 +208,18 @@ static int __exit nokia_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver nokia_driver = {
+static __refdata struct usb_composite_driver nokia_driver = {
 	.name		= "g_nokia",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_HIGH,
+	.bind		= nokia_bind,
 	.unbind		= __exit_p(nokia_unbind),
 };
 
 static int __init nokia_init(void)
 {
-	return usb_composite_probe(&nokia_driver, nokia_bind);
+	return usb_composite_probe(&nokia_driver);
 }
 module_init(nokia_init);
 
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index f9132ada53b..2a4749c3eb3 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -1308,7 +1308,7 @@ static int omap_pullup(struct usb_gadget *gadget, int is_on)
 }
 
 static int omap_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int omap_udc_stop(struct usb_gadget_driver *driver);
 
 static struct usb_gadget_ops omap_gadget_ops = {
@@ -2040,7 +2040,7 @@ static inline int machine_without_vbus_sense(void)
 }
 
 static int omap_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	int		status = -ENODEV;
 	struct omap_ep	*ep;
@@ -2082,7 +2082,7 @@ static int omap_udc_start(struct usb_gadget_driver *driver,
 	if (udc->dc_clk != NULL)
 		omap_udc_enable_clock(1);
 
-	status = bind(&udc->gadget);
+	status = bind(&udc->gadget, driver);
 	if (status) {
 		DBG("bind to %s --> %d\n", driver->driver.name, status);
 		udc->gadget.dev.driver = NULL;
diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index f4fb71c9ae0..6490c0040e3 100644
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -1236,7 +1236,7 @@ static int pch_udc_pcd_vbus_draw(struct usb_gadget *gadget, unsigned int mA)
 }
 
 static int pch_udc_start(struct usb_gadget_driver *driver,
-	int (*bind)(struct usb_gadget *));
+	int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int pch_udc_stop(struct usb_gadget_driver *driver);
 static const struct usb_gadget_ops pch_udc_ops = {
 	.get_frame = pch_udc_pcd_get_frame,
@@ -2982,7 +2982,7 @@ static int init_dma_pools(struct pch_udc_dev *dev)
 }
 
 static int pch_udc_start(struct usb_gadget_driver *driver,
-	int (*bind)(struct usb_gadget *))
+	int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct pch_udc_dev	*dev = pch_udc;
 	int			retval;
@@ -3006,7 +3006,7 @@ static int pch_udc_start(struct usb_gadget_driver *driver,
 	dev->gadget.dev.driver = &driver->driver;
 
 	/* Invoke the bind routine of the gadget driver */
-	retval = bind(&dev->gadget);
+	retval = bind(&dev->gadget, driver);
 
 	if (retval) {
 		dev_err(&dev->pdev->dev, "%s: binding to %s returning %d\n",
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index f1f9290a2f4..e156e3f2672 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -22,7 +22,6 @@
 #include <linux/timer.h>
 #include <linux/list.h>
 #include <linux/interrupt.h>
-#include <linux/utsname.h>
 #include <linux/device.h>
 #include <linux/moduleparam.h>
 #include <linux/fs.h>
@@ -38,25 +37,13 @@
 #include <asm/unaligned.h>
 
 #include <linux/usb/ch9.h>
+#include <linux/usb/composite.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/g_printer.h>
 
 #include "gadget_chips.h"
 
-
-/*
- * Kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
-/*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 #define DRIVER_DESC		"Printer Gadget"
 #define DRIVER_VERSION		"2007 OCT 06"
@@ -120,8 +107,7 @@ static struct printer_dev usb_printer_gadget;
  * parameters are in UTF-8 (superset of ASCII's 7 bit characters).
  */
 
-static char *iSerialNum;
-module_param(iSerialNum, charp, S_IRUGO);
+module_param_named(iSerialNum, coverwrite.serial_number, charp, S_IRUGO);
 MODULE_PARM_DESC(iSerialNum, "1");
 
 static char *iPNPstring;
@@ -141,18 +127,10 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR);
  * descriptors are built on demand.
  */
 
-#define STRING_MANUFACTURER		1
-#define STRING_PRODUCT			2
-#define STRING_SERIALNUM		3
-
 /* holds our biggest descriptor */
 #define USB_DESC_BUFSIZE		256
 #define USB_BUFSIZE			8192
 
-/* This device advertises one configuration. */
-#define DEV_CONFIG_VALUE		1
-#define	PRINTER_INTERFACE		0
-
 static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
@@ -162,16 +140,12 @@ static struct usb_device_descriptor device_desc = {
 	.bDeviceProtocol =	0,
 	.idVendor =		cpu_to_le16(PRINTER_VENDOR_NUM),
 	.idProduct =		cpu_to_le16(PRINTER_PRODUCT_NUM),
-	.iManufacturer =	STRING_MANUFACTURER,
-	.iProduct =		STRING_PRODUCT,
-	.iSerialNumber =	STRING_SERIALNUM,
 	.bNumConfigurations =	1
 };
 
 static struct usb_interface_descriptor intf_desc = {
 	.bLength =		sizeof intf_desc,
 	.bDescriptorType =	USB_DT_INTERFACE,
-	.bInterfaceNumber =	PRINTER_INTERFACE,
 	.bNumEndpoints =	2,
 	.bInterfaceClass =	USB_CLASS_PRINTER,
 	.bInterfaceSubClass =	1,	/* Printer Sub-Class */
@@ -252,7 +226,6 @@ static const struct usb_descriptor_header *otg_desc[] = {
 
 /* descriptors that are built on-demand */
 
-static char				manufacturer [50];
 static char				product_desc [40] = DRIVER_DESC;
 static char				serial_num [40] = "1";
 static char				pnp_string [1024] =
@@ -260,9 +233,9 @@ static char				pnp_string [1024] =
 
 /* static strings, in UTF-8 */
 static struct usb_string		strings [] = {
-	{ STRING_MANUFACTURER,	manufacturer, },
-	{ STRING_PRODUCT,	product_desc, },
-	{ STRING_SERIALNUM,	serial_num, },
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = product_desc,
+	[USB_GADGET_SERIAL_IDX].s =	serial_num,
 	{  }		/* end of list */
 };
 
@@ -871,25 +844,13 @@ static int set_interface(struct printer_dev *dev, unsigned number)
 	int			result = 0;
 
 	/* Free the current interface */
-	switch (dev->interface) {
-	case PRINTER_INTERFACE:
-		printer_reset_interface(dev);
-		break;
-	}
+	printer_reset_interface(dev);
 
-	switch (number) {
-	case PRINTER_INTERFACE:
-		result = set_printer_interface(dev);
-		if (result) {
-			printer_reset_interface(dev);
-		} else {
-			dev->interface = PRINTER_INTERFACE;
-		}
-		break;
-	default:
-		result = -EINVAL;
-		/* FALL THROUGH */
-	}
+	result = set_printer_interface(dev);
+	if (result)
+		printer_reset_interface(dev);
+	else
+		dev->interface = number;
 
 	if (!result)
 		INFO(dev, "Using interface %x\n", number);
@@ -972,7 +933,7 @@ static int printer_func_setup(struct usb_function *f,
 		switch (ctrl->bRequest) {
 		case 0: /* Get the IEEE-1284 PNP String */
 			/* Only one printer interface is supported. */
-			if ((wIndex>>8) != PRINTER_INTERFACE)
+			if ((wIndex>>8) != dev->interface)
 				break;
 
 			value = (pnp_string[0]<<8)|pnp_string[1];
@@ -983,7 +944,7 @@ static int printer_func_setup(struct usb_function *f,
 
 		case 1: /* Get Port Status */
 			/* Only one printer interface is supported. */
-			if (wIndex != PRINTER_INTERFACE)
+			if (wIndex != dev->interface)
 				break;
 
 			*(u8 *)req->buf = dev->printer_status;
@@ -992,7 +953,7 @@ static int printer_func_setup(struct usb_function *f,
 
 		case 2: /* Soft Reset */
 			/* Only one printer interface is supported. */
-			if (wIndex != PRINTER_INTERFACE)
+			if (wIndex != dev->interface)
 				break;
 
 			printer_soft_reset(dev);
@@ -1020,6 +981,37 @@ unknown:
 static int __init printer_func_bind(struct usb_configuration *c,
 		struct usb_function *f)
 {
+	struct printer_dev *dev = container_of(f, struct printer_dev, function);
+	struct usb_composite_dev *cdev = c->cdev;
+	struct usb_ep		*in_ep, *out_ep;
+	int id;
+
+	id = usb_interface_id(c, f);
+	if (id < 0)
+		return id;
+	intf_desc.bInterfaceNumber = id;
+
+	/* all we really need is bulk IN/OUT */
+	in_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_in_desc);
+	if (!in_ep) {
+autoconf_fail:
+		dev_err(&cdev->gadget->dev, "can't autoconfigure on %s\n",
+			cdev->gadget->name);
+		return -ENODEV;
+	}
+	in_ep->driver_data = in_ep;	/* claim */
+
+	out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc);
+	if (!out_ep)
+		goto autoconf_fail;
+	out_ep->driver_data = out_ep;	/* claim */
+
+	/* assumes that all endpoints are dual-speed */
+	hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
+	hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
+
+	dev->in_ep = in_ep;
+	dev->out_ep = out_ep;
 	return 0;
 }
 
@@ -1035,7 +1027,8 @@ static int printer_func_set_alt(struct usb_function *f,
 	int ret = -ENOTSUPP;
 
 	if (!alt)
-		ret = set_interface(dev, PRINTER_INTERFACE);
+		ret = set_interface(dev, intf);
+
 	return ret;
 }
 
@@ -1107,13 +1100,13 @@ static int __init printer_bind_config(struct usb_configuration *c)
 {
 	struct usb_gadget	*gadget = c->cdev->gadget;
 	struct printer_dev	*dev;
-	struct usb_ep		*in_ep, *out_ep;
 	int			status = -ENOMEM;
-	int			gcnum;
 	size_t			len;
 	u32			i;
 	struct usb_request	*req;
 
+	usb_ep_autoconfig_reset(gadget);
+
 	dev = &usb_printer_gadget;
 
 	dev->function.name = shortname;
@@ -1125,6 +1118,10 @@ static int __init printer_bind_config(struct usb_configuration *c)
 	dev->function.set_alt = printer_func_set_alt;
 	dev->function.disable = printer_func_disable;
 
+	status = usb_add_function(c, &dev->function);
+	if (status)
+		return status;
+
 	/* Setup the sysfs files for the printer gadget. */
 	dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno,
 				  NULL, "g_printer");
@@ -1145,23 +1142,6 @@ static int __init printer_bind_config(struct usb_configuration *c)
 		goto fail;
 	}
 
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0) {
-		device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
-	} else {
-		dev_warn(&gadget->dev, "controller '%s' not recognized\n",
-			gadget->name);
-		/* unrecognized, but safe unless bulk is REALLY quirky */
-		device_desc.bcdDevice =
-			cpu_to_le16(0xFFFF);
-	}
-	snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-
-	if (iSerialNum)
-		strlcpy(serial_num, iSerialNum, sizeof serial_num);
-
 	if (iPNPstring)
 		strlcpy(&pnp_string[2], iPNPstring, (sizeof pnp_string)-2);
 
@@ -1169,26 +1149,6 @@ static int __init printer_bind_config(struct usb_configuration *c)
 	pnp_string[0] = (len >> 8) & 0xFF;
 	pnp_string[1] = len & 0xFF;
 
-	/* all we really need is bulk IN/OUT */
-	usb_ep_autoconfig_reset(gadget);
-	in_ep = usb_ep_autoconfig(gadget, &fs_ep_in_desc);
-	if (!in_ep) {
-autoconf_fail:
-		dev_err(&gadget->dev, "can't autoconfigure on %s\n",
-			gadget->name);
-		return -ENODEV;
-	}
-	in_ep->driver_data = in_ep;	/* claim */
-
-	out_ep = usb_ep_autoconfig(gadget, &fs_ep_out_desc);
-	if (!out_ep)
-		goto autoconf_fail;
-	out_ep->driver_data = out_ep;	/* claim */
-
-	/* assumes that all endpoints are dual-speed */
-	hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
-	hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
-
 	usb_gadget_set_selfpowered(gadget);
 
 	if (gadget->is_otg) {
@@ -1215,9 +1175,6 @@ autoconf_fail:
 	dev->current_rx_bytes = 0;
 	dev->current_rx_buf = NULL;
 
-	dev->in_ep = in_ep;
-	dev->out_ep = out_ep;
-
 	for (i = 0; i < QLEN; i++) {
 		req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL);
 		if (!req) {
@@ -1250,8 +1207,6 @@ autoconf_fail:
 	dev->gadget = gadget;
 
 	INFO(dev, "%s, version: " DRIVER_VERSION "\n", driver_desc);
-	INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, out_ep->name,
-			in_ep->name);
 	return 0;
 
 fail:
@@ -1266,14 +1221,28 @@ static int printer_unbind(struct usb_composite_dev *cdev)
 
 static int __init printer_bind(struct usb_composite_dev *cdev)
 {
-	return usb_add_config(cdev, &printer_cfg_driver, printer_bind_config);
+	int ret;
+
+	ret = usb_string_ids_tab(cdev, strings);
+	if (ret < 0)
+		return ret;
+	device_desc.iManufacturer = strings[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings[USB_GADGET_PRODUCT_IDX].id;
+	device_desc.iSerialNumber = strings[USB_GADGET_SERIAL_IDX].id;
+
+	ret = usb_add_config(cdev, &printer_cfg_driver, printer_bind_config);
+	if (ret)
+		return ret;
+	usb_composite_overwrite_options(cdev, &coverwrite);
+	return ret;
 }
 
-static struct usb_composite_driver printer_driver = {
+static __refdata struct usb_composite_driver printer_driver = {
 	.name           = shortname,
 	.dev            = &device_desc,
 	.strings        = dev_strings,
 	.max_speed      = USB_SPEED_HIGH,
+	.bind		= printer_bind,
 	.unbind		= printer_unbind,
 };
 
@@ -1297,7 +1266,7 @@ init(void)
 		return status;
 	}
 
-	status = usb_composite_probe(&printer_driver, printer_bind);
+	status = usb_composite_probe(&printer_driver);
 	if (status) {
 		class_destroy(usb_gadget_class);
 		unregister_chrdev_region(g_printer_devno, 1);
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index 907ad3ecb34..8efbf08c356 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -33,7 +33,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/irq.h>
 #include <linux/clk.h>
-#include <linux/err.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
 #include <linux/io.h>
@@ -1000,7 +999,7 @@ static int pxa25x_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
 }
 
 static int pxa25x_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int pxa25x_stop(struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops pxa25x_udc_ops = {
@@ -1258,7 +1257,7 @@ static void udc_enable (struct pxa25x_udc *dev)
  * the driver might get unbound.
  */
 static int pxa25x_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct pxa25x_udc	*dev = the_controller;
 	int			retval;
@@ -1286,7 +1285,7 @@ fail:
 		dev->gadget.dev.driver = NULL;
 		return retval;
 	}
-	retval = bind(&dev->gadget);
+	retval = bind(&dev->gadget, driver);
 	if (retval) {
 		DMSG("bind to driver %s --> error %d\n",
 				driver->driver.name, retval);
diff --git a/drivers/usb/gadget/pxa25x_udc.h b/drivers/usb/gadget/pxa25x_udc.h
index 861f4df6ea2..2eca1e71fec 100644
--- a/drivers/usb/gadget/pxa25x_udc.h
+++ b/drivers/usb/gadget/pxa25x_udc.h
@@ -225,7 +225,7 @@ dump_state(struct pxa25x_udc *dev)
 		dev->stats.read.bytes, dev->stats.read.ops);
 
 	for (i = 1; i < PXA_UDC_NUM_ENDPOINTS; i++) {
-		if (dev->ep [i].desc == NULL)
+		if (dev->ep[i].ep.desc == NULL)
 			continue;
 		DMSG ("udccs%d = %02x\n", i, *dev->ep->reg_udccs);
 	}
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 644b4305cb9..2b3b01d5f40 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1672,7 +1672,7 @@ static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
 }
 
 static int pxa27x_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int pxa27x_udc_stop(struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops pxa_udc_ops = {
@@ -1803,7 +1803,7 @@ static void udc_enable(struct pxa_udc *udc)
  * Returns 0 if no error, -EINVAL, -ENODEV, -EBUSY otherwise
  */
 static int pxa27x_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct pxa_udc *udc = the_controller;
 	int retval;
@@ -1826,7 +1826,7 @@ static int pxa27x_udc_start(struct usb_gadget_driver *driver,
 		dev_err(udc->dev, "device_add error %d\n", retval);
 		goto add_fail;
 	}
-	retval = bind(&udc->gadget);
+	retval = bind(&udc->gadget, driver);
 	if (retval) {
 		dev_err(udc->dev, "bind to driver %s --> error %d\n",
 			driver->driver.name, retval);
@@ -2508,7 +2508,7 @@ static int __init pxa_udc_probe(struct platform_device *pdev)
 			IRQF_SHARED, driver_name, udc);
 	if (retval != 0) {
 		dev_err(udc->dev, "%s: can't get irq %i, err %d\n",
-			driver_name, IRQ_USB, retval);
+			driver_name, udc->irq, retval);
 		goto err_irq;
 	}
 	retval = usb_add_gadget_udc(&pdev->dev, &udc->gadget);
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index b35babed6fc..e4192b887de 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -863,26 +863,8 @@ int rndis_msg_parser(u8 configNr, u8 *buf)
 		 */
 		pr_warning("%s: unknown RNDIS message 0x%08X len %d\n",
 			__func__, MsgType, MsgLength);
-		{
-			unsigned i;
-			for (i = 0; i < MsgLength; i += 16) {
-				pr_debug("%03d: "
-					" %02x %02x %02x %02x"
-					" %02x %02x %02x %02x"
-					" %02x %02x %02x %02x"
-					" %02x %02x %02x %02x"
-					"\n",
-					i,
-					buf[i], buf [i+1],
-						buf[i+2], buf[i+3],
-					buf[i+4], buf [i+5],
-						buf[i+6], buf[i+7],
-					buf[i+8], buf [i+9],
-						buf[i+10], buf[i+11],
-					buf[i+12], buf [i+13],
-						buf[i+14], buf[i+15]);
-			}
-		}
+		print_hex_dump_bytes(__func__, DUMP_PREFIX_OFFSET,
+				     buf, MsgLength);
 		break;
 	}
 
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index b13e0bb5f5b..6f696ee8b81 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2197,7 +2197,7 @@ static int s3c_hsotg_corereset(struct s3c_hsotg *hsotg)
 	/* issue soft reset */
 	writel(GRSTCTL_CSftRst, hsotg->regs + GRSTCTL);
 
-	timeout = 1000;
+	timeout = 10000;
 	do {
 		grstctl = readl(hsotg->regs + GRSTCTL);
 	} while ((grstctl & GRSTCTL_CSftRst) && timeout-- > 0);
@@ -2207,7 +2207,7 @@ static int s3c_hsotg_corereset(struct s3c_hsotg *hsotg)
 		return -EINVAL;
 	}
 
-	timeout = 1000;
+	timeout = 10000;
 
 	while (1) {
 		u32 grstctl = readl(hsotg->regs + GRSTCTL);
@@ -3516,7 +3516,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 	hsotg->dev = dev;
 	hsotg->plat = plat;
 
-	hsotg->clk = clk_get(&pdev->dev, "otg");
+	hsotg->clk = devm_clk_get(&pdev->dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
 		dev_err(dev, "cannot get otg clock\n");
 		return PTR_ERR(hsotg->clk);
@@ -3599,6 +3599,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 
 	if (hsotg->num_of_eps == 0) {
 		dev_err(dev, "wrong number of EPs (zero)\n");
+		ret = -EINVAL;
 		goto err_supplies;
 	}
 
@@ -3606,6 +3607,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 		      GFP_KERNEL);
 	if (!eps) {
 		dev_err(dev, "cannot get memory\n");
+		ret = -ENOMEM;
 		goto err_supplies;
 	}
 
@@ -3622,6 +3624,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 						     GFP_KERNEL);
 	if (!hsotg->ctrl_req) {
 		dev_err(dev, "failed to allocate ctrl req\n");
+		ret = -ENOMEM;
 		goto err_ep_mem;
 	}
 
@@ -3664,7 +3667,6 @@ err_supplies:
 
 err_clk:
 	clk_disable_unprepare(hsotg->clk);
-	clk_put(hsotg->clk);
 
 	return ret;
 }
@@ -3690,7 +3692,6 @@ static int __devexit s3c_hsotg_remove(struct platform_device *pdev)
 	regulator_bulk_free(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
 
 	clk_disable_unprepare(hsotg->clk);
-	clk_put(hsotg->clk);
 
 	device_unregister(&hsotg->gadget.dev);
 	return 0;
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index e26a4e7ed2b..d8e785d4ad5 100644
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -135,7 +135,6 @@ struct s3c_hsudc_req {
  * @dev: The device reference used by probe function.
  * @lock: Lock to synchronize the usage of Endpoints (EP's are indexed).
  * @regs: Remapped base address of controller's register space.
- * @mem_rsrc: Device memory resource used for remapping device register space.
  * irq: IRQ number used by the controller.
  * uclk: Reference to the controller clock.
  * ep0state: Current state of EP0.
@@ -150,7 +149,6 @@ struct s3c_hsudc {
 	struct regulator_bulk_data supplies[ARRAY_SIZE(s3c_hsudc_supply_names)];
 	spinlock_t lock;
 	void __iomem *regs;
-	struct resource *mem_rsrc;
 	int irq;
 	struct clk *uclk;
 	int ep0state;
@@ -835,9 +833,9 @@ static struct usb_request *s3c_hsudc_alloc_request(struct usb_ep *_ep,
 {
 	struct s3c_hsudc_req *hsreq;
 
-	hsreq = kzalloc(sizeof *hsreq, gfp_flags);
+	hsreq = kzalloc(sizeof(*hsreq), gfp_flags);
 	if (!hsreq)
-		return 0;
+		return NULL;
 
 	INIT_LIST_HEAD(&hsreq->queue);
 	return &hsreq->req;
@@ -906,16 +904,16 @@ static int s3c_hsudc_queue(struct usb_ep *_ep, struct usb_request *_req,
 			csr = readl((u32)hsudc->regs + offset);
 			if (!(csr & S3C_ESR_TX_SUCCESS) &&
 				(s3c_hsudc_write_fifo(hsep, hsreq) == 1))
-				hsreq = 0;
+				hsreq = NULL;
 		} else {
 			csr = readl((u32)hsudc->regs + offset);
 			if ((csr & S3C_ESR_RX_SUCCESS)
 				   && (s3c_hsudc_read_fifo(hsep, hsreq) == 1))
-				hsreq = 0;
+				hsreq = NULL;
 		}
 	}
 
-	if (hsreq != 0)
+	if (hsreq)
 		list_add_tail(&hsreq->queue, &hsep->queue);
 
 	spin_unlock_irqrestore(&hsudc->lock, flags);
@@ -1271,7 +1269,7 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
 	struct s3c24xx_hsudc_platdata *pd = pdev->dev.platform_data;
 	int ret, i;
 
-	hsudc = kzalloc(sizeof(struct s3c_hsudc) +
+	hsudc = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsudc) +
 			sizeof(struct s3c_hsudc_ep) * pd->epnum,
 			GFP_KERNEL);
 	if (!hsudc) {
@@ -1296,25 +1294,12 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "unable to obtain driver resource data\n");
-		ret = -ENODEV;
-		goto err_res;
-	}
-
-	hsudc->mem_rsrc = request_mem_region(res->start, resource_size(res),
-				dev_name(&pdev->dev));
-	if (!hsudc->mem_rsrc) {
-		dev_err(dev, "failed to reserve register area\n");
-		ret = -ENODEV;
-		goto err_res;
-	}
 
-	hsudc->regs = ioremap(res->start, resource_size(res));
+	hsudc->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hsudc->regs) {
 		dev_err(dev, "error mapping device register area\n");
 		ret = -EBUSY;
-		goto err_remap;
+		goto err_res;
 	}
 
 	spin_lock_init(&hsudc->lock);
@@ -1337,21 +1322,22 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
 	ret = platform_get_irq(pdev, 0);
 	if (ret < 0) {
 		dev_err(dev, "unable to obtain IRQ number\n");
-		goto err_irq;
+		goto err_res;
 	}
 	hsudc->irq = ret;
 
-	ret = request_irq(hsudc->irq, s3c_hsudc_irq, 0, driver_name, hsudc);
+	ret = devm_request_irq(&pdev->dev, hsudc->irq, s3c_hsudc_irq, 0,
+				driver_name, hsudc);
 	if (ret < 0) {
 		dev_err(dev, "irq request failed\n");
-		goto err_irq;
+		goto err_res;
 	}
 
-	hsudc->uclk = clk_get(&pdev->dev, "usb-device");
+	hsudc->uclk = devm_clk_get(&pdev->dev, "usb-device");
 	if (IS_ERR(hsudc->uclk)) {
 		dev_err(dev, "failed to find usb-device clock source\n");
 		ret = PTR_ERR(hsudc->uclk);
-		goto err_clk;
+		goto err_res;
 	}
 	clk_enable(hsudc->uclk);
 
@@ -1377,21 +1363,12 @@ err_add_udc:
 	device_unregister(&hsudc->gadget.dev);
 err_add_device:
 	clk_disable(hsudc->uclk);
-	clk_put(hsudc->uclk);
-err_clk:
-	free_irq(hsudc->irq, hsudc);
-err_irq:
-	iounmap(hsudc->regs);
-
-err_remap:
-	release_mem_region(res->start, resource_size(res));
 err_res:
 	if (!IS_ERR_OR_NULL(hsudc->transceiver))
 		usb_put_phy(hsudc->transceiver);
 
 	regulator_bulk_free(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
 err_supplies:
-	kfree(hsudc);
 	return ret;
 }
 
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index f2e51f50e52..a2fa6e16d01 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -12,6 +12,8 @@
  * (at your option) any later version.
  */
 
+#define pr_fmt(fmt) "s3c2410_udc: " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
@@ -27,6 +29,7 @@
 #include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/prefetch.h>
+#include <linux/io.h>
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
@@ -35,7 +38,6 @@
 #include <linux/usb/gadget.h>
 
 #include <asm/byteorder.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/unaligned.h>
 #include <mach/irqs.h>
@@ -43,7 +45,7 @@
 #include <mach/hardware.h>
 
 #include <plat/regs-udc.h>
-#include <plat/udc.h>
+#include <linux/platform_data/usb-s3c2410_udc.h>
 
 
 #include "s3c2410_udc.h"
@@ -115,7 +117,7 @@ static int dprintk(int level, const char *fmt, ...)
 			sizeof(printk_buf)-len, fmt, args);
 	va_end(args);
 
-	return printk(KERN_DEBUG "%s", printk_buf);
+	return pr_debug("%s", printk_buf);
 }
 #else
 static int dprintk(int level, const char *fmt, ...)
@@ -125,10 +127,10 @@ static int dprintk(int level, const char *fmt, ...)
 #endif
 static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
 {
-	u32 addr_reg,pwr_reg,ep_int_reg,usb_int_reg;
+	u32 addr_reg, pwr_reg, ep_int_reg, usb_int_reg;
 	u32 ep_int_en_reg, usb_int_en_reg, ep0_csr;
-	u32 ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2;
-	u32 ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2;
+	u32 ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2;
+	u32 ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2;
 
 	addr_reg       = udc_read(S3C2410_UDC_FUNC_ADDR_REG);
 	pwr_reg        = udc_read(S3C2410_UDC_PWR_REG);
@@ -164,10 +166,10 @@ static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
 		 "EP2_I_CSR2     : 0x%04X\n"
 		 "EP2_O_CSR1     : 0x%04X\n"
 		 "EP2_O_CSR2     : 0x%04X\n",
-			addr_reg,pwr_reg,ep_int_reg,usb_int_reg,
+			addr_reg, pwr_reg, ep_int_reg, usb_int_reg,
 			ep_int_en_reg, usb_int_en_reg, ep0_csr,
-			ep1_i_csr1,ep1_i_csr2,ep1_o_csr1,ep1_o_csr2,
-			ep2_i_csr1,ep2_i_csr2,ep2_o_csr1,ep2_o_csr2
+			ep1_i_csr1, ep1_i_csr2, ep1_o_csr1, ep1_o_csr2,
+			ep2_i_csr1, ep2_i_csr2, ep2_o_csr1, ep2_o_csr2
 		);
 
 	return 0;
@@ -230,7 +232,7 @@ static inline void s3c2410_udc_set_ep0_de_out(void __iomem *base)
 {
 	udc_writeb(base, S3C2410_UDC_INDEX_EP0, S3C2410_UDC_INDEX_REG);
 
-	udc_writeb(base,(S3C2410_UDC_EP0_CSR_SOPKTRDY
+	udc_writeb(base, (S3C2410_UDC_EP0_CSR_SOPKTRDY
 				| S3C2410_UDC_EP0_CSR_DE),
 			S3C2410_UDC_EP0_CSR_REG);
 }
@@ -263,7 +265,7 @@ static void s3c2410_udc_done(struct s3c2410_ep *ep,
 
 	list_del_init(&req->queue);
 
-	if (likely (req->req.status == -EINPROGRESS))
+	if (likely(req->req.status == -EINPROGRESS))
 		req->req.status = status;
 	else
 		status = req->req.status;
@@ -280,9 +282,9 @@ static void s3c2410_udc_nuke(struct s3c2410_udc *udc,
 	if (&ep->queue == NULL)
 		return;
 
-	while (!list_empty (&ep->queue)) {
+	while (!list_empty(&ep->queue)) {
 		struct s3c2410_request *req;
-		req = list_entry (ep->queue.next, struct s3c2410_request,
+		req = list_entry(ep->queue.next, struct s3c2410_request,
 				queue);
 		s3c2410_udc_done(ep, req, status);
 	}
@@ -389,10 +391,10 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep,
 
 		if (idx == 0) {
 			/* Reset signal => no need to say 'data sent' */
-			if (! (udc_read(S3C2410_UDC_USB_INT_REG)
+			if (!(udc_read(S3C2410_UDC_USB_INT_REG)
 					& S3C2410_UDC_USBINT_RESET))
 				s3c2410_udc_set_ep0_de_in(base_addr);
-			ep->dev->ep0state=EP0_IDLE;
+			ep->dev->ep0state = EP0_IDLE;
 		} else {
 			udc_write(idx, S3C2410_UDC_INDEX_REG);
 			ep_csr = udc_read(S3C2410_UDC_IN_CSR1_REG);
@@ -406,7 +408,7 @@ static int s3c2410_udc_write_fifo(struct s3c2410_ep *ep,
 	} else {
 		if (idx == 0) {
 			/* Reset signal => no need to say 'data sent' */
-			if (! (udc_read(S3C2410_UDC_USB_INT_REG)
+			if (!(udc_read(S3C2410_UDC_USB_INT_REG)
 					& S3C2410_UDC_USBINT_RESET))
 				s3c2410_udc_set_ep0_ipr(base_addr);
 		} else {
@@ -442,7 +444,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
 	u8		*buf;
 	u32		ep_csr;
 	unsigned	bufferspace;
-	int		is_last=1;
+	int		is_last = 1;
 	unsigned	avail;
 	int		fifo_count = 0;
 	u32		idx;
@@ -510,7 +512,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
 	/* Only ep0 debug messages are interesting */
 	if (idx == 0)
 		dprintk(DEBUG_VERBOSE, "%s fifo count : %d [last %d]\n",
-			__func__, fifo_count,is_last);
+			__func__, fifo_count, is_last);
 
 	if (is_last) {
 		if (idx == 0) {
@@ -542,7 +544,7 @@ static int s3c2410_udc_read_fifo(struct s3c2410_ep *ep,
 
 static int s3c2410_udc_read_fifo_crq(struct usb_ctrlrequest *crq)
 {
-	unsigned char *outbuf = (unsigned char*)crq;
+	unsigned char *outbuf = (unsigned char *)crq;
 	int bytes_read = 0;
 
 	udc_write(0, S3C2410_UDC_INDEX_REG);
@@ -648,7 +650,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 
 	switch (crq->bRequest) {
 	case USB_REQ_SET_CONFIGURATION:
-		dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_SET_CONFIGURATION ...\n");
 
 		if (crq->bRequestType == USB_RECIP_DEVICE) {
 			dev->req_config = 1;
@@ -657,7 +659,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		break;
 
 	case USB_REQ_SET_INTERFACE:
-		dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_SET_INTERFACE ...\n");
 
 		if (crq->bRequestType == USB_RECIP_INTERFACE) {
 			dev->req_config = 1;
@@ -666,7 +668,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		break;
 
 	case USB_REQ_SET_ADDRESS:
-		dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_SET_ADDRESS ...\n");
 
 		if (crq->bRequestType == USB_RECIP_DEVICE) {
 			tmp = crq->wValue & 0x7F;
@@ -679,13 +681,12 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		break;
 
 	case USB_REQ_GET_STATUS:
-		dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ... \n");
+		dprintk(DEBUG_NORMAL, "USB_REQ_GET_STATUS ...\n");
 		s3c2410_udc_clear_ep0_opr(base_addr);
 
 		if (dev->req_std) {
-			if (!s3c2410_udc_get_status(dev, crq)) {
+			if (!s3c2410_udc_get_status(dev, crq))
 				return;
-			}
 		}
 		break;
 
@@ -750,7 +751,7 @@ static void s3c2410_udc_handle_ep0_idle(struct s3c2410_udc *dev,
 		/* deferred i/o == no response yet */
 	} else if (dev->req_pending) {
 		dprintk(DEBUG_VERBOSE, "dev->req_pending... what now?\n");
-		dev->req_pending=0;
+		dev->req_pending = 0;
 	}
 
 	dprintk(DEBUG_VERBOSE, "ep0state %s\n", ep0states[dev->ep0state]);
@@ -801,16 +802,14 @@ static void s3c2410_udc_handle_ep0(struct s3c2410_udc *dev)
 
 	case EP0_IN_DATA_PHASE:			/* GET_DESCRIPTOR etc */
 		dprintk(DEBUG_NORMAL, "EP0_IN_DATA_PHASE ... what now?\n");
-		if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req) {
+		if (!(ep0csr & S3C2410_UDC_EP0_CSR_IPKRDY) && req)
 			s3c2410_udc_write_fifo(ep, req);
-		}
 		break;
 
 	case EP0_OUT_DATA_PHASE:		/* SET_DESCRIPTOR etc */
 		dprintk(DEBUG_NORMAL, "EP0_OUT_DATA_PHASE ... what now?\n");
-		if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req ) {
-			s3c2410_udc_read_fifo(ep,req);
-		}
+		if ((ep0csr & S3C2410_UDC_EP0_CSR_OPKRDY) && req)
+			s3c2410_udc_read_fifo(ep, req);
 		break;
 
 	case EP0_END_XFER:
@@ -836,7 +835,7 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 	u32			ep_csr1;
 	u32			idx;
 
-	if (likely (!list_empty(&ep->queue)))
+	if (likely(!list_empty(&ep->queue)))
 		req = list_entry(ep->queue.next,
 				struct s3c2410_request, queue);
 	else
@@ -858,9 +857,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 			return;
 		}
 
-		if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req) {
-			s3c2410_udc_write_fifo(ep,req);
-		}
+		if (!(ep_csr1 & S3C2410_UDC_ICSR1_PKTRDY) && req)
+			s3c2410_udc_write_fifo(ep, req);
 	} else {
 		udc_write(idx, S3C2410_UDC_INDEX_REG);
 		ep_csr1 = udc_read(S3C2410_UDC_OUT_CSR1_REG);
@@ -873,9 +871,8 @@ static void s3c2410_udc_handle_ep(struct s3c2410_ep *ep)
 			return;
 		}
 
-		if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req) {
-			s3c2410_udc_read_fifo(ep,req);
-		}
+		if ((ep_csr1 & S3C2410_UDC_OCSR1_PKTRDY) && req)
+			s3c2410_udc_read_fifo(ep, req);
 	}
 }
 
@@ -1057,7 +1054,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
 	struct s3c2410_ep	*ep;
 	u32			max, tmp;
 	unsigned long		flags;
-	u32			csr1,csr2;
+	u32			csr1, csr2;
 	u32			int_en_reg;
 
 	ep = to_s3c2410_ep(_ep);
@@ -1073,7 +1070,7 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
 
 	max = usb_endpoint_maxp(desc) & 0x1fff;
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 	_ep->maxpacket = max & 0x7ff;
 	ep->ep.desc = desc;
 	ep->halted = 0;
@@ -1117,11 +1114,11 @@ static int s3c2410_udc_ep_enable(struct usb_ep *_ep,
 
 	/* print some debug message */
 	tmp = desc->bEndpointAddress;
-	dprintk (DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n",
-		 _ep->name,ep->num, tmp,
+	dprintk(DEBUG_NORMAL, "enable %s(%d) ep%x%s-blk max %02x\n",
+		 _ep->name, ep->num, tmp,
 		 desc->bEndpointAddress & USB_DIR_IN ? "in" : "out", max);
 
-	local_irq_restore (flags);
+	local_irq_restore(flags);
 	s3c2410_udc_set_halt(_ep, 0);
 
 	return 0;
@@ -1149,7 +1146,7 @@ static int s3c2410_udc_ep_disable(struct usb_ep *_ep)
 	ep->ep.desc = NULL;
 	ep->halted = 1;
 
-	s3c2410_udc_nuke (ep->dev, ep, -ESHUTDOWN);
+	s3c2410_udc_nuke(ep->dev, ep, -ESHUTDOWN);
 
 	/* disable irqs */
 	int_en_reg = udc_read(S3C2410_UDC_EP_INT_EN_REG);
@@ -1170,16 +1167,16 @@ s3c2410_udc_alloc_request(struct usb_ep *_ep, gfp_t mem_flags)
 {
 	struct s3c2410_request *req;
 
-	dprintk(DEBUG_VERBOSE,"%s(%p,%d)\n", __func__, _ep, mem_flags);
+	dprintk(DEBUG_VERBOSE, "%s(%p,%d)\n", __func__, _ep, mem_flags);
 
 	if (!_ep)
 		return NULL;
 
-	req = kzalloc (sizeof(struct s3c2410_request), mem_flags);
+	req = kzalloc(sizeof(struct s3c2410_request), mem_flags);
 	if (!req)
 		return NULL;
 
-	INIT_LIST_HEAD (&req->queue);
+	INIT_LIST_HEAD(&req->queue);
 	return &req->req;
 }
 
@@ -1197,7 +1194,7 @@ s3c2410_udc_free_request(struct usb_ep *_ep, struct usb_request *_req)
 	if (!ep || !_req || (!ep->ep.desc && _ep->name != ep0name))
 		return;
 
-	WARN_ON (!list_empty (&req->queue));
+	WARN_ON(!list_empty(&req->queue));
 	kfree(req);
 }
 
@@ -1220,12 +1217,12 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
 	}
 
 	dev = ep->dev;
-	if (unlikely (!dev->driver
+	if (unlikely(!dev->driver
 			|| dev->gadget.speed == USB_SPEED_UNKNOWN)) {
 		return -ESHUTDOWN;
 	}
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 
 	if (unlikely(!_req || !_req->complete
 			|| !_req->buf || !list_empty(&req->queue))) {
@@ -1233,7 +1230,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
 			dprintk(DEBUG_NORMAL, "%s: 1 X X X\n", __func__);
 		else {
 			dprintk(DEBUG_NORMAL, "%s: 0 %01d %01d %01d\n",
-				__func__, !_req->complete,!_req->buf,
+				__func__, !_req->complete, !_req->buf,
 				!list_empty(&req->queue));
 		}
 
@@ -1299,7 +1296,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
 	}
 
 	/* pio or dma irq handler advances the queue. */
-	if (likely (req != 0))
+	if (likely(req))
 		list_add_tail(&req->queue, &ep->queue);
 
 	local_irq_restore(flags);
@@ -1329,11 +1326,11 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 
 	udc = to_s3c2410_udc(ep->gadget);
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 
-	list_for_each_entry (req, &ep->queue, queue) {
+	list_for_each_entry(req, &ep->queue, queue) {
 		if (&req->req == _req) {
-			list_del_init (&req->queue);
+			list_del_init(&req->queue);
 			_req->status = -ECONNRESET;
 			retval = 0;
 			break;
@@ -1348,7 +1345,7 @@ static int s3c2410_udc_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 		s3c2410_udc_done(ep, req, -ECONNRESET);
 	}
 
-	local_irq_restore (flags);
+	local_irq_restore(flags);
 	return retval;
 }
 
@@ -1367,7 +1364,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
 		return -EINVAL;
 	}
 
-	local_irq_save (flags);
+	local_irq_save(flags);
 
 	idx = ep->bEndpointAddress & 0x7F;
 
@@ -1376,7 +1373,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
 		s3c2410_udc_set_ep0_de_out(base_addr);
 	} else {
 		udc_write(idx, S3C2410_UDC_INDEX_REG);
-		ep_csr = udc_read((ep->bEndpointAddress &USB_DIR_IN)
+		ep_csr = udc_read((ep->bEndpointAddress & USB_DIR_IN)
 				? S3C2410_UDC_IN_CSR1_REG
 				: S3C2410_UDC_OUT_CSR1_REG);
 
@@ -1404,7 +1401,7 @@ static int s3c2410_udc_set_halt(struct usb_ep *_ep, int value)
 	}
 
 	ep->halted = value ? 1 : 0;
-	local_irq_restore (flags);
+	local_irq_restore(flags);
 
 	return 0;
 }
@@ -1484,9 +1481,9 @@ static int s3c2410_udc_set_pullup(struct s3c2410_udc *udc, int is_on)
 			}
 			s3c2410_udc_disable(udc);
 		}
-	}
-	else
+	} else {
 		return -EOPNOTSUPP;
+	}
 
 	return 0;
 }
@@ -1542,7 +1539,7 @@ static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
 }
 
 static int s3c2410_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *));
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
 static int s3c2410_udc_stop(struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops s3c2410_ops = {
@@ -1617,20 +1614,20 @@ static void s3c2410_udc_reinit(struct s3c2410_udc *dev)
 	u32 i;
 
 	/* device/ep0 records init */
-	INIT_LIST_HEAD (&dev->gadget.ep_list);
-	INIT_LIST_HEAD (&dev->gadget.ep0->ep_list);
+	INIT_LIST_HEAD(&dev->gadget.ep_list);
+	INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
 	dev->ep0state = EP0_IDLE;
 
 	for (i = 0; i < S3C2410_ENDPOINTS; i++) {
 		struct s3c2410_ep *ep = &dev->ep[i];
 
 		if (i != 0)
-			list_add_tail (&ep->ep.ep_list, &dev->gadget.ep_list);
+			list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
 
 		ep->dev = dev;
 		ep->ep.desc = NULL;
 		ep->halted = 0;
-		INIT_LIST_HEAD (&ep->queue);
+		INIT_LIST_HEAD(&ep->queue);
 	}
 }
 
@@ -1668,7 +1665,7 @@ static void s3c2410_udc_enable(struct s3c2410_udc *dev)
 }
 
 static int s3c2410_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	struct s3c2410_udc *udc = the_controller;
 	int		retval;
@@ -1683,13 +1680,13 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
 		return -EBUSY;
 
 	if (!bind || !driver->setup || driver->max_speed < USB_SPEED_FULL) {
-		printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n",
+		dev_err(&udc->gadget.dev, "Invalid driver: bind %p setup %p speed %d\n",
 			bind, driver->setup, driver->max_speed);
 		return -EINVAL;
 	}
 #if defined(MODULE)
 	if (!driver->unbind) {
-		printk(KERN_ERR "Invalid driver: no unbind method\n");
+		dev_err(&udc->gadget.dev, "Invalid driver: no unbind method\n");
 		return -EINVAL;
 	}
 #endif
@@ -1699,15 +1696,17 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
 	udc->gadget.dev.driver = &driver->driver;
 
 	/* Bind the driver */
-	if ((retval = device_add(&udc->gadget.dev)) != 0) {
-		printk(KERN_ERR "Error in device_add() : %d\n",retval);
+	retval = device_add(&udc->gadget.dev);
+	if (retval) {
+		dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval);
 		goto register_error;
 	}
 
 	dprintk(DEBUG_NORMAL, "binding gadget driver '%s'\n",
 		driver->driver.name);
 
-	if ((retval = bind(&udc->gadget)) != 0) {
+	retval = bind(&udc->gadget, driver);
+	if (retval) {
 		device_del(&udc->gadget.dev);
 		goto register_error;
 	}
@@ -1865,7 +1864,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
 		memory.ep[4].fifo_size = S3C2440_EP_FIFO_SIZE;
 	}
 
-	spin_lock_init (&udc->lock);
+	spin_lock_init(&udc->lock);
 	udc_info = pdev->dev.platform_data;
 
 	rsrc_start = S3C2410_PA_USBDEV;
@@ -2028,7 +2027,8 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static int s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message)
+static int
+s3c2410_udc_suspend(struct platform_device *pdev, pm_message_t message)
 {
 	s3c2410_udc_command(S3C2410_UDC_P_DISABLE);
 
@@ -2073,7 +2073,7 @@ static int __init udc_init(void)
 
 	s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL);
 	if (IS_ERR(s3c2410_udc_debugfs_root)) {
-		printk(KERN_ERR "%s: debugfs dir creation failed %ld\n",
+		pr_err("%s: debugfs dir creation failed %ld\n",
 			gadget_name, PTR_ERR(s3c2410_udc_debugfs_root));
 		s3c2410_udc_debugfs_root = NULL;
 	}
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 665c07422c2..44752f531e8 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/utsname.h>
 #include <linux/device.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
@@ -37,17 +36,13 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "f_acm.c"
 #include "f_obex.c"
 #include "f_serial.c"
 #include "u_serial.c"
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 /* Thanks to NetChip Technologies for donating this product ID.
 *
@@ -61,15 +56,12 @@
 
 /* string IDs are assigned dynamically */
 
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-#define STRING_DESCRIPTION_IDX		2
-
-static char manufacturer[50];
+#define STRING_DESCRIPTION_IDX		USB_GADGET_FIRST_AVAIL_IDX
 
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = GS_VERSION_NAME,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = GS_VERSION_NAME,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	[STRING_DESCRIPTION_IDX].s = NULL /* updated; f(use_acm) */,
 	{  } /* end of list */
 };
@@ -94,7 +86,7 @@ static struct usb_device_descriptor device_desc = {
 	/* .bMaxPacketSize0 = f(hardware) */
 	.idVendor =		cpu_to_le16(GS_VENDOR_ID),
 	/* .idProduct =	f(use_acm) */
-	/* .bcdDevice = f(hardware) */
+	.bcdDevice = cpu_to_le16(GS_VERSION_NUM),
 	/* .iManufacturer = DYNAMIC */
 	/* .iProduct = DYNAMIC */
 	.bNumConfigurations =	1,
@@ -162,8 +154,6 @@ static struct usb_configuration serial_config_driver = {
 
 static int __init gs_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
-	struct usb_gadget	*gadget = cdev->gadget;
 	int			status;
 
 	status = gserial_setup(cdev->gadget, n_ports);
@@ -174,50 +164,14 @@ static int __init gs_bind(struct usb_composite_dev *cdev)
 	 * contents can be overridden by the composite_dev glue.
 	 */
 
-	/* device description: manufacturer, product */
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-	status = usb_string_id(cdev);
+	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
 		goto fail;
-	strings_dev[STRING_MANUFACTURER_IDX].id = status;
-
-	device_desc.iManufacturer = status;
-
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail;
-	strings_dev[STRING_PRODUCT_IDX].id = status;
-
-	device_desc.iProduct = status;
-
-	/* config description */
-	status = usb_string_id(cdev);
-	if (status < 0)
-		goto fail;
-	strings_dev[STRING_DESCRIPTION_IDX].id = status;
-
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+	status = strings_dev[STRING_DESCRIPTION_IDX].id;
 	serial_config_driver.iConfiguration = status;
 
-	/* set up other descriptors */
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(GS_VERSION_NUM | gcnum);
-	else {
-		/* this is so simple (for now, no altsettings) that it
-		 * SHOULD NOT have problems with bulk-capable hardware.
-		 * so warn about unrcognized controllers -- don't panic.
-		 *
-		 * things like configuration and altsetting numbering
-		 * can need hardware-specific attention though.
-		 */
-		pr_warning("gs_bind: controller '%s' not recognized\n",
-			gadget->name);
-		device_desc.bcdDevice =
-			cpu_to_le16(GS_VERSION_NUM | 0x0099);
-	}
-
 	if (gadget_is_otg(cdev->gadget)) {
 		serial_config_driver.descriptors = otg_desc;
 		serial_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
@@ -229,6 +183,7 @@ static int __init gs_bind(struct usb_composite_dev *cdev)
 	if (status < 0)
 		goto fail;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	INFO(cdev, "%s\n", GS_VERSION_NAME);
 
 	return 0;
@@ -238,11 +193,12 @@ fail:
 	return status;
 }
 
-static struct usb_composite_driver gserial_driver = {
+static __refdata struct usb_composite_driver gserial_driver = {
 	.name		= "g_serial",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_SUPER,
+	.bind		= gs_bind,
 };
 
 static int __init init(void)
@@ -271,7 +227,7 @@ static int __init init(void)
 	}
 	strings_dev[STRING_DESCRIPTION_IDX].s = serial_config_driver.label;
 
-	return usb_composite_probe(&gserial_driver, gs_bind);
+	return usb_composite_probe(&gserial_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c
index 5444866e13e..eaa1005377f 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/tcm_usb_gadget.c
@@ -25,13 +25,10 @@
 #include <target/configfs_macros.h>
 #include <asm/unaligned.h>
 
-#include "usbstring.c"
-#include "epautoconf.c"
-#include "config.c"
-#include "composite.c"
-
 #include "tcm_usb_gadget.h"
 
+USB_GADGET_COMPOSITE_OPTIONS();
+
 static struct target_fabric_configfs *usbg_fabric_configfs;
 
 static inline struct f_uas *to_f_uas(struct usb_function *f)
@@ -1977,7 +1974,6 @@ static struct usb_interface_descriptor bot_intf_desc = {
 	.bInterfaceClass =      USB_CLASS_MASS_STORAGE,
 	.bInterfaceSubClass =   USB_SC_SCSI,
 	.bInterfaceProtocol =   USB_PR_BULK,
-	.iInterface =           USB_G_STR_INT_UAS,
 };
 
 static struct usb_interface_descriptor uasp_intf_desc = {
@@ -1988,7 +1984,6 @@ static struct usb_interface_descriptor uasp_intf_desc = {
 	.bInterfaceClass =	USB_CLASS_MASS_STORAGE,
 	.bInterfaceSubClass =	USB_SC_SCSI,
 	.bInterfaceProtocol =	USB_PR_UAS,
-	.iInterface =		USB_G_STR_INT_BBB,
 };
 
 static struct usb_endpoint_descriptor uasp_bi_desc = {
@@ -2209,20 +2204,16 @@ static struct usb_device_descriptor usbg_device_desc = {
 	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
 	.idVendor =		cpu_to_le16(UAS_VENDOR_ID),
 	.idProduct =		cpu_to_le16(UAS_PRODUCT_ID),
-	.iManufacturer =	USB_G_STR_MANUFACTOR,
-	.iProduct =		USB_G_STR_PRODUCT,
-	.iSerialNumber =	USB_G_STR_SERIAL,
-
 	.bNumConfigurations =   1,
 };
 
 static struct usb_string	usbg_us_strings[] = {
-	{ USB_G_STR_MANUFACTOR,	"Target Manufactor"},
-	{ USB_G_STR_PRODUCT,	"Target Product"},
-	{ USB_G_STR_SERIAL,	"000000000001"},
-	{ USB_G_STR_CONFIG,	"default config"},
-	{ USB_G_STR_INT_UAS,	"USB Attached SCSI"},
-	{ USB_G_STR_INT_BBB,	"Bulk Only Transport"},
+	[USB_GADGET_MANUFACTURER_IDX].s	= "Target Manufactor",
+	[USB_GADGET_PRODUCT_IDX].s	= "Target Product",
+	[USB_GADGET_SERIAL_IDX].s	= "000000000001",
+	[USB_G_STR_CONFIG].s		= "default config",
+	[USB_G_STR_INT_UAS].s		= "USB Attached SCSI",
+	[USB_G_STR_INT_BBB].s		= "Bulk Only Transport",
 	{ },
 };
 
@@ -2244,7 +2235,6 @@ static int guas_unbind(struct usb_composite_dev *cdev)
 static struct usb_configuration usbg_config_driver = {
 	.label                  = "Linux Target",
 	.bConfigurationValue    = 1,
-	.iConfiguration		= USB_G_STR_CONFIG,
 	.bmAttributes           = USB_CONFIG_ATT_SELFPOWER,
 };
 
@@ -2417,6 +2407,9 @@ static int usbg_cfg_bind(struct usb_configuration *c)
 	fu->function.disable = usbg_disable;
 	fu->tpg = the_only_tpg_I_currently_have;
 
+	bot_intf_desc.iInterface = usbg_us_strings[USB_G_STR_INT_BBB].id;
+	uasp_intf_desc.iInterface = usbg_us_strings[USB_G_STR_INT_UAS].id;
+
 	ret = usb_add_function(c, &fu->function);
 	if (ret)
 		goto err;
@@ -2431,22 +2424,38 @@ static int usb_target_bind(struct usb_composite_dev *cdev)
 {
 	int ret;
 
+	ret = usb_string_ids_tab(cdev, usbg_us_strings);
+	if (ret)
+		return ret;
+
+	usbg_device_desc.iManufacturer =
+		usbg_us_strings[USB_GADGET_MANUFACTURER_IDX].id;
+	usbg_device_desc.iProduct = usbg_us_strings[USB_GADGET_PRODUCT_IDX].id;
+	usbg_device_desc.iSerialNumber =
+		usbg_us_strings[USB_GADGET_SERIAL_IDX].id;
+	usbg_config_driver.iConfiguration =
+		usbg_us_strings[USB_G_STR_CONFIG].id;
+
 	ret = usb_add_config(cdev, &usbg_config_driver,
 			usbg_cfg_bind);
+	if (ret)
+		return ret;
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	return 0;
 }
 
-static struct usb_composite_driver usbg_driver = {
+static __refdata struct usb_composite_driver usbg_driver = {
 	.name           = "g_target",
 	.dev            = &usbg_device_desc,
 	.strings        = usbg_strings,
 	.max_speed      = USB_SPEED_SUPER,
+	.bind		= usb_target_bind,
 	.unbind         = guas_unbind,
 };
 
 static int usbg_attach(struct usbg_tpg *tpg)
 {
-	return usb_composite_probe(&usbg_driver, usb_target_bind);
+	return usb_composite_probe(&usbg_driver);
 }
 
 static void usbg_detach(struct usbg_tpg *tpg)
diff --git a/drivers/usb/gadget/tcm_usb_gadget.h b/drivers/usb/gadget/tcm_usb_gadget.h
index bb18999a9a8..8289219925b 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.h
+++ b/drivers/usb/gadget/tcm_usb_gadget.h
@@ -16,12 +16,11 @@
 #define UASP_SS_EP_COMP_LOG_STREAMS 4
 #define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS)
 
-#define USB_G_STR_MANUFACTOR    1
-#define USB_G_STR_PRODUCT       2
-#define USB_G_STR_SERIAL        3
-#define USB_G_STR_CONFIG        4
-#define USB_G_STR_INT_UAS       5
-#define USB_G_STR_INT_BBB       6
+enum {
+	USB_G_STR_CONFIG = USB_GADGET_FIRST_AVAIL_IDX,
+	USB_G_STR_INT_UAS,
+	USB_G_STR_INT_BBB,
+};
 
 #define USB_G_ALT_INT_BBB       0
 #define USB_G_ALT_INT_UAS       1
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 90e82e288eb..6458764994e 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -14,6 +14,7 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/gfp.h>
 #include <linux/device.h>
 #include <linux/ctype.h>
@@ -83,17 +84,10 @@ struct eth_dev {
 
 #define DEFAULT_QLEN	2	/* double buffering by default */
 
-
-#ifdef CONFIG_USB_GADGET_DUALSPEED
-
 static unsigned qmult = 5;
 module_param(qmult, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");
 
-#else	/* full speed (low speed doesn't do bulk) */
-#define qmult		1
-#endif
-
 /* for dual-speed hardware, use deeper queues at high/super speed */
 static inline int qlen(struct usb_gadget *gadget)
 {
@@ -669,6 +663,8 @@ static int eth_stop(struct net_device *net)
 	spin_lock_irqsave(&dev->lock, flags);
 	if (dev->port_usb) {
 		struct gether	*link = dev->port_usb;
+		const struct usb_endpoint_descriptor *in;
+		const struct usb_endpoint_descriptor *out;
 
 		if (link->close)
 			link->close(link);
@@ -682,10 +678,14 @@ static int eth_stop(struct net_device *net)
 		 * their own pace; the network stack can handle old packets.
 		 * For the moment we leave this here, since it works.
 		 */
+		in = link->in_ep->desc;
+		out = link->out_ep->desc;
 		usb_ep_disable(link->in_ep);
 		usb_ep_disable(link->out_ep);
 		if (netif_carrier_ok(net)) {
 			DBG(dev, "host still using in/out endpoints\n");
+			link->in_ep->desc = in;
+			link->out_ep->desc = out;
 			usb_ep_enable(link->in_ep);
 			usb_ep_enable(link->out_ep);
 		}
@@ -834,7 +834,7 @@ void gether_cleanup(void)
 		return;
 
 	unregister_netdev(the_dev->net);
-	flush_work_sync(&the_dev->work);
+	flush_work(&the_dev->work);
 	free_netdev(the_dev->net);
 
 	the_dev = NULL;
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index 5b3f5fffea9..f1739526820 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -132,11 +132,15 @@ static unsigned	n_ports;
 
 
 #ifdef VERBOSE_DEBUG
+#ifndef pr_vdebug
 #define pr_vdebug(fmt, arg...) \
 	pr_debug(fmt, ##arg)
+#endif /* pr_vdebug */
 #else
+#ifndef pr_vdebig
 #define pr_vdebug(fmt, arg...) \
 	({ if (0) pr_debug(fmt, ##arg); })
+#endif /* pr_vdebug */
 #endif
 
 /*-------------------------------------------------------------------------*/
@@ -1129,7 +1133,8 @@ int gserial_setup(struct usb_gadget *g, unsigned count)
 	for (i = 0; i < count; i++) {
 		struct device	*tty_dev;
 
-		tty_dev = tty_register_device(gs_tty_driver, i, &g->dev);
+		tty_dev = tty_port_register_device(&ports[i].port->port,
+				gs_tty_driver, i, &g->dev);
 		if (IS_ERR(tty_dev))
 			pr_warning("%s: no classdev for port %d, err %ld\n",
 				__func__, i, PTR_ERR(tty_dev));
diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index e5e44f8cde9..f3cd9690b10 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -118,7 +118,7 @@ EXPORT_SYMBOL_GPL(usb_gadget_unmap_request);
  */
 static inline int usb_gadget_start(struct usb_gadget *gadget,
 		struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
 {
 	return gadget->ops->start(driver, bind);
 }
@@ -262,8 +262,8 @@ static void usb_gadget_remove_driver(struct usb_udc *udc)
 	kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
 
 	if (udc_is_newstyle(udc)) {
-		udc->driver->disconnect(udc->gadget);
 		usb_gadget_disconnect(udc->gadget);
+		udc->driver->disconnect(udc->gadget);
 		udc->driver->unbind(udc->gadget);
 		usb_gadget_udc_stop(udc->gadget, udc->driver);
 	} else {
@@ -311,13 +311,12 @@ EXPORT_SYMBOL_GPL(usb_del_gadget_udc);
 
 /* ------------------------------------------------------------------------- */
 
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+int usb_gadget_probe_driver(struct usb_gadget_driver *driver)
 {
 	struct usb_udc		*udc = NULL;
 	int			ret;
 
-	if (!driver || !bind || !driver->setup)
+	if (!driver || !driver->bind || !driver->setup)
 		return -EINVAL;
 
 	mutex_lock(&udc_lock);
@@ -339,7 +338,7 @@ found:
 	udc->dev.driver = &driver->driver;
 
 	if (udc_is_newstyle(udc)) {
-		ret = bind(udc->gadget);
+		ret = driver->bind(udc->gadget, driver);
 		if (ret)
 			goto err1;
 		ret = usb_gadget_udc_start(udc->gadget, driver);
@@ -350,7 +349,7 @@ found:
 		usb_gadget_connect(udc->gadget);
 	} else {
 
-		ret = usb_gadget_start(udc->gadget, driver, bind);
+		ret = usb_gadget_start(udc->gadget, driver, driver->bind);
 		if (ret)
 			goto err1;
 
diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c
index 4d25b9009ed..1f49fce0f0b 100644
--- a/drivers/usb/gadget/usbstring.c
+++ b/drivers/usb/gadget/usbstring.c
@@ -9,6 +9,7 @@
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/list.h>
 #include <linux/string.h>
 #include <linux/device.h>
@@ -68,4 +69,4 @@ usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf)
 	buf [1] = USB_DT_STRING;
 	return buf [0];
 }
-
+EXPORT_SYMBOL_GPL(usb_gadget_get_string);
diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c
index 120e134e805..69cf5c2cd33 100644
--- a/drivers/usb/gadget/webcam.c
+++ b/drivers/usb/gadget/webcam.c
@@ -23,16 +23,12 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "uvc_queue.c"
 #include "uvc_video.c"
 #include "uvc_v4l2.c"
 #include "f_uvc.c"
 
+USB_GADGET_COMPOSITE_OPTIONS();
 /* --------------------------------------------------------------------------
  * Device descriptor
  */
@@ -47,13 +43,12 @@ static char webcam_config_label[] = "Video";
 
 /* string IDs are assigned dynamically */
 
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-#define STRING_DESCRIPTION_IDX		2
+#define STRING_DESCRIPTION_IDX		USB_GADGET_FIRST_AVAIL_IDX
 
 static struct usb_string webcam_strings[] = {
-	[STRING_MANUFACTURER_IDX].s = webcam_vendor_label,
-	[STRING_PRODUCT_IDX].s = webcam_product_label,
+	[USB_GADGET_MANUFACTURER_IDX].s = webcam_vendor_label,
+	[USB_GADGET_PRODUCT_IDX].s = webcam_product_label,
+	[USB_GADGET_SERIAL_IDX].s = "",
 	[STRING_DESCRIPTION_IDX].s = webcam_config_label,
 	{  }
 };
@@ -358,26 +353,22 @@ webcam_bind(struct usb_composite_dev *cdev)
 	/* Allocate string descriptor numbers ... note that string contents
 	 * can be overridden by the composite_dev glue.
 	 */
-	if ((ret = usb_string_id(cdev)) < 0)
-		goto error;
-	webcam_strings[STRING_MANUFACTURER_IDX].id = ret;
-	webcam_device_descriptor.iManufacturer = ret;
-
-	if ((ret = usb_string_id(cdev)) < 0)
-		goto error;
-	webcam_strings[STRING_PRODUCT_IDX].id = ret;
-	webcam_device_descriptor.iProduct = ret;
-
-	if ((ret = usb_string_id(cdev)) < 0)
+	ret = usb_string_ids_tab(cdev, webcam_strings);
+	if (ret < 0)
 		goto error;
-	webcam_strings[STRING_DESCRIPTION_IDX].id = ret;
-	webcam_config_driver.iConfiguration = ret;
+	webcam_device_descriptor.iManufacturer =
+		webcam_strings[USB_GADGET_MANUFACTURER_IDX].id;
+	webcam_device_descriptor.iProduct =
+		webcam_strings[USB_GADGET_PRODUCT_IDX].id;
+	webcam_config_driver.iConfiguration =
+		webcam_strings[STRING_DESCRIPTION_IDX].id;
 
 	/* Register our configuration. */
 	if ((ret = usb_add_config(cdev, &webcam_config_driver,
 					webcam_config_bind)) < 0)
 		goto error;
 
+	usb_composite_overwrite_options(cdev, &coverwrite);
 	INFO(cdev, "Webcam Video Gadget\n");
 	return 0;
 
@@ -390,18 +381,19 @@ error:
  * Driver
  */
 
-static struct usb_composite_driver webcam_driver = {
+static __refdata struct usb_composite_driver webcam_driver = {
 	.name		= "g_webcam",
 	.dev		= &webcam_device_descriptor,
 	.strings	= webcam_device_strings,
 	.max_speed	= USB_SPEED_SUPER,
+	.bind		= webcam_bind,
 	.unbind		= webcam_unbind,
 };
 
 static int __init
 webcam_init(void)
 {
-	return usb_composite_probe(&webcam_driver, webcam_bind);
+	return usb_composite_probe(&webcam_driver);
 }
 
 static void __exit
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 12ad516ada7..6bf4c061136 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -42,7 +42,6 @@
 
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/utsname.h>
 #include <linux/device.h>
 
 #include "g_zero.h"
@@ -58,15 +57,11 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "composite.c"
-#include "usbstring.c"
-#include "config.c"
-#include "epautoconf.c"
-
 #include "f_sourcesink.c"
 #include "f_loopback.c"
 
 /*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
 
 #define DRIVER_VERSION		"Cinco de Mayo 2008"
 
@@ -141,20 +136,13 @@ const struct usb_descriptor_header *otg_desc[] = {
 #endif
 
 /* string IDs are assigned dynamically */
-
-#define STRING_MANUFACTURER_IDX		0
-#define STRING_PRODUCT_IDX		1
-#define STRING_SERIAL_IDX		2
-
-static char manufacturer[50];
-
 /* default serial number takes at least two packets */
 static char serial[] = "0123456789.0123456789.0123456789";
 
 static struct usb_string strings_dev[] = {
-	[STRING_MANUFACTURER_IDX].s = manufacturer,
-	[STRING_PRODUCT_IDX].s = longname,
-	[STRING_SERIAL_IDX].s = serial,
+	[USB_GADGET_MANUFACTURER_IDX].s = "",
+	[USB_GADGET_PRODUCT_IDX].s = longname,
+	[USB_GADGET_SERIAL_IDX].s = serial,
 	{  }			/* end of list */
 };
 
@@ -265,30 +253,18 @@ static void zero_resume(struct usb_composite_dev *cdev)
 
 static int __init zero_bind(struct usb_composite_dev *cdev)
 {
-	int			gcnum;
-	struct usb_gadget	*gadget = cdev->gadget;
-	int			id;
+	int			status;
 
 	/* Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
-	id = usb_string_id(cdev);
-	if (id < 0)
-		return id;
-	strings_dev[STRING_MANUFACTURER_IDX].id = id;
-	device_desc.iManufacturer = id;
-
-	id = usb_string_id(cdev);
-	if (id < 0)
-		return id;
-	strings_dev[STRING_PRODUCT_IDX].id = id;
-	device_desc.iProduct = id;
-
-	id = usb_string_id(cdev);
-	if (id < 0)
-		return id;
-	strings_dev[STRING_SERIAL_IDX].id = id;
-	device_desc.iSerialNumber = id;
+	status = usb_string_ids_tab(cdev, strings_dev);
+	if (status < 0)
+		return status;
+
+	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
+	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+	device_desc.iSerialNumber = strings_dev[USB_GADGET_SERIAL_IDX].id;
 
 	setup_timer(&autoresume_timer, zero_autoresume, (unsigned long) cdev);
 
@@ -303,28 +279,10 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
 		loopback_add(cdev, autoresume != 0);
 	}
 
-	gcnum = usb_gadget_controller_number(gadget);
-	if (gcnum >= 0)
-		device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
-	else {
-		/* gadget zero is so simple (for now, no altsettings) that
-		 * it SHOULD NOT have problems with bulk-capable hardware.
-		 * so just warn about unrcognized controllers -- don't panic.
-		 *
-		 * things like configuration and altsetting numbering
-		 * can need hardware-specific attention though.
-		 */
-		pr_warning("%s: controller '%s' not recognized\n",
-			longname, gadget->name);
-		device_desc.bcdDevice = cpu_to_le16(0x9999);
-	}
+	usb_composite_overwrite_options(cdev, &coverwrite);
 
 	INFO(cdev, "%s, version: " DRIVER_VERSION "\n", longname);
 
-	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
-		init_utsname()->sysname, init_utsname()->release,
-		gadget->name);
-
 	return 0;
 }
 
@@ -334,11 +292,12 @@ static int zero_unbind(struct usb_composite_dev *cdev)
 	return 0;
 }
 
-static struct usb_composite_driver zero_driver = {
+static __refdata struct usb_composite_driver zero_driver = {
 	.name		= "zero",
 	.dev		= &device_desc,
 	.strings	= dev_strings,
 	.max_speed	= USB_SPEED_SUPER,
+	.bind		= zero_bind,
 	.unbind		= zero_unbind,
 	.suspend	= zero_suspend,
 	.resume		= zero_resume,
@@ -349,7 +308,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-	return usb_composite_probe(&zero_driver, zero_bind);
+	return usb_composite_probe(&zero_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 075d2eca810..3f1431d37e1 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -18,8 +18,8 @@ config USB_C67X00_HCD
 	  module will be called c67x00.
 
 config USB_XHCI_HCD
-	tristate "xHCI HCD (USB 3.0) support (EXPERIMENTAL)"
-	depends on USB && USB_ARCH_HAS_XHCI && EXPERIMENTAL
+	tristate "xHCI HCD (USB 3.0) support"
+	depends on USB && USB_ARCH_HAS_XHCI
 	---help---
 	  The eXtensible Host Controller Interface (xHCI) is standard for USB 3.0
 	  "SuperSpeed" host controller hardware.
@@ -262,7 +262,7 @@ config USB_ISP116X_HCD
 
 config USB_ISP1760_HCD
 	tristate "ISP 1760 HCD support"
-	depends on USB && EXPERIMENTAL
+	depends on USB
 	---help---
 	  The ISP1760 chip is a USB 2.0 host controller.
 
@@ -292,7 +292,7 @@ config USB_OHCI_HCD
 	depends on USB && USB_ARCH_HAS_OHCI
 	select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3
 	select USB_OTG_UTILS if ARCH_OMAP
-	select USB_ISP1301 if ARCH_LPC32XX || ARCH_PNX4008
+	depends on USB_ISP1301 || !ARCH_LPC32XX
 	---help---
 	  The Open Host Controller Interface (OHCI) is a standard for accessing
 	  USB 1.1 host controller hardware.  It does more in hardware than Intel's
@@ -376,7 +376,7 @@ config USB_OHCI_HCD_PCI
 
 config USB_OHCI_HCD_SSB
 	bool "OHCI support for Broadcom SSB OHCI core (DEPRECATED)"
-	depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
+	depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD)
 	select USB_HCD_SSB
 	select USB_OHCI_HCD_PLATFORM
 	default n
@@ -414,21 +414,21 @@ config USB_CNS3XXX_OHCI
 
 config USB_OHCI_HCD_PLATFORM
 	bool "Generic OHCI driver for a platform device"
-	depends on USB_OHCI_HCD && EXPERIMENTAL
+	depends on USB_OHCI_HCD
 	default n
 	---help---
 	  Adds an OHCI host driver for a generic platform device, which
-	  provieds a memory space and an irq.
+	  provides a memory space and an irq.
 
 	  If unsure, say N.
 
 config USB_EHCI_HCD_PLATFORM
 	bool "Generic EHCI driver for a platform device"
-	depends on USB_EHCI_HCD && EXPERIMENTAL
+	depends on USB_EHCI_HCD
 	default n
 	---help---
 	  Adds an EHCI host driver for a generic platform device, which
-	  provieds a memory space and an irq.
+	  provides a memory space and an irq.
 
 	  If unsure, say N.
 
@@ -450,7 +450,7 @@ config USB_OHCI_LITTLE_ENDIAN
 
 config USB_UHCI_HCD
 	tristate "UHCI HCD (most Intel and VIA) support"
-	depends on USB && (PCI || SPARC_LEON)
+	depends on USB && (PCI || SPARC_LEON || ARCH_VT8500)
 	---help---
 	  The Universal Host Controller Interface is a standard by Intel for
 	  accessing the USB hardware in the PC (which is also called the USB
@@ -468,7 +468,15 @@ config USB_UHCI_HCD
 config USB_UHCI_SUPPORT_NON_PCI_HC
 	bool
 	depends on USB_UHCI_HCD
-	default y if SPARC_LEON
+	default y if (SPARC_LEON || ARCH_VT8500)
+
+config USB_UHCI_PLATFORM
+	bool "Generic UHCI Platform Driver support"
+	depends on USB_UHCI_SUPPORT_NON_PCI_HC
+	default y if ARCH_VT8500
+	---help---
+	  Enable support for generic UHCI platform devices that require no
+	  additional configuration.
 
 config USB_UHCI_BIG_ENDIAN_MMIO
 	bool
@@ -583,8 +591,7 @@ config USB_RENESAS_USBHS_HCD
 	  module will be called renesas-usbhs.
 
 config USB_WHCI_HCD
-	tristate "Wireless USB Host Controller Interface (WHCI) driver (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Wireless USB Host Controller Interface (WHCI) driver"
 	depends on PCI && USB && UWB
 	select USB_WUSB
 	select UWB_WHCI
@@ -596,8 +603,7 @@ config USB_WHCI_HCD
 	  will be called "whci-hcd".
 
 config USB_HWA_HCD
-	tristate "Host Wire Adapter (HWA) driver (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Host Wire Adapter (HWA) driver"
 	depends on USB && UWB
 	select USB_WUSB
 	select UWB_HWA
@@ -648,7 +654,7 @@ config USB_OCTEON2_COMMON
 
 config USB_HCD_BCMA
 	tristate "BCMA usb host driver"
-	depends on BCMA && EXPERIMENTAL
+	depends on BCMA
 	select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
 	select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
 	help
@@ -660,7 +666,7 @@ config USB_HCD_BCMA
 
 config USB_HCD_SSB
 	tristate "SSB usb host driver"
-	depends on SSB && EXPERIMENTAL
+	depends on SSB
 	select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
 	select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
 	help
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index a47e2cffaaf..411bb74152e 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -150,31 +150,24 @@ static int __devinit ehci_atmel_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-				driver->description)) {
-		dev_dbg(&pdev->dev, "controller already in use\n");
-		retval = -EBUSY;
-		goto fail_request_resource;
-	}
-
-	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (hcd->regs == NULL) {
 		dev_dbg(&pdev->dev, "error mapping memory\n");
 		retval = -EFAULT;
-		goto fail_ioremap;
+		goto fail_request_resource;
 	}
 
-	iclk = clk_get(&pdev->dev, "ehci_clk");
+	iclk = devm_clk_get(&pdev->dev, "ehci_clk");
 	if (IS_ERR(iclk)) {
 		dev_err(&pdev->dev, "Error getting interface clock\n");
 		retval = -ENOENT;
-		goto fail_get_iclk;
+		goto fail_request_resource;
 	}
-	fclk = clk_get(&pdev->dev, "uhpck");
+	fclk = devm_clk_get(&pdev->dev, "uhpck");
 	if (IS_ERR(fclk)) {
 		dev_err(&pdev->dev, "Error getting function clock\n");
 		retval = -ENOENT;
-		goto fail_get_fclk;
+		goto fail_request_resource;
 	}
 
 	atmel_start_ehci(pdev);
@@ -187,13 +180,6 @@ static int __devinit ehci_atmel_drv_probe(struct platform_device *pdev)
 
 fail_add_hcd:
 	atmel_stop_ehci(pdev);
-	clk_put(fclk);
-fail_get_fclk:
-	clk_put(iclk);
-fail_get_iclk:
-	iounmap(hcd->regs);
-fail_ioremap:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 fail_request_resource:
 	usb_put_hcd(hcd);
 fail_create_hcd:
@@ -209,13 +195,9 @@ static int __devexit ehci_atmel_drv_remove(struct platform_device *pdev)
 
 	ehci_shutdown(hcd);
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 
 	atmel_stop_ehci(pdev);
-	clk_put(fclk);
-	clk_put(iclk);
 	fclk = iclk = NULL;
 
 	return 0;
diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c
index cba10d625a5..65c945eb414 100644
--- a/drivers/usb/host/ehci-au1xxx.c
+++ b/drivers/usb/host/ehci-au1xxx.c
@@ -98,23 +98,17 @@ static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		pr_debug("request_mem_region failed");
-		ret = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hcd->regs) {
-		pr_debug("ioremap failed");
+		pr_debug("devm_request_and_ioremap failed");
 		ret = -ENOMEM;
-		goto err2;
+		goto err1;
 	}
 
 	if (alchemy_usb_control(ALCHEMY_USB_EHCI0, 1)) {
 		printk(KERN_INFO "%s: controller init failed!\n", pdev->name);
 		ret = -ENODEV;
-		goto err3;
+		goto err1;
 	}
 
 	ret = usb_add_hcd(hcd, pdev->resource[1].start,
@@ -125,10 +119,6 @@ static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)
 	}
 
 	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
-err3:
-	iounmap(hcd->regs);
-err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err1:
 	usb_put_hcd(hcd);
 	return ret;
@@ -140,8 +130,6 @@ static int ehci_hcd_au1xxx_drv_remove(struct platform_device *pdev)
 
 	usb_remove_hcd(hcd);
 	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	platform_set_drvdata(pdev, NULL);
 
diff --git a/drivers/usb/host/ehci-cns3xxx.c b/drivers/usb/host/ehci-cns3xxx.c
index caaa3e5be33..d91708d2e72 100644
--- a/drivers/usb/host/ehci-cns3xxx.c
+++ b/drivers/usb/host/ehci-cns3xxx.c
@@ -105,27 +105,17 @@ static int cns3xxx_ehci_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-				driver->description)) {
-		dev_dbg(dev, "controller already in use\n");
-		retval = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (hcd->regs == NULL) {
 		dev_dbg(dev, "error mapping memory\n");
 		retval = -EFAULT;
-		goto err2;
+		goto err1;
 	}
 
 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval == 0)
 		return retval;
 
-	iounmap(hcd->regs);
-err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err1:
 	usb_put_hcd(hcd);
 
@@ -137,8 +127,6 @@ static int cns3xxx_ehci_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 
 	/*
 	 * EHCI and OHCI share the same clock and power,
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index f0c00de035e..1599806e3d4 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -653,10 +653,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 						seen [seen_count++].qh = p.qh;
 				} else
 					temp = 0;
-				if (p.qh) {
-					tag = Q_NEXT_TYPE(ehci, hw->hw_next);
-					p = p.qh->qh_next;
-				}
+				tag = Q_NEXT_TYPE(ehci, hw->hw_next);
+				p = p.qh->qh_next;
 				break;
 			case Q_TYPE_FSTN:
 				temp = scnprintf (next, size,
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index b7451b29c5a..9bfde82078e 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -210,11 +210,11 @@ static void usb_hcd_fsl_remove(struct usb_hcd *hcd,
 	usb_put_hcd(hcd);
 }
 
-static void ehci_fsl_setup_phy(struct usb_hcd *hcd,
+static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
 			       enum fsl_usb2_phy_modes phy_mode,
 			       unsigned int port_offset)
 {
-	u32 portsc, temp;
+	u32 portsc;
 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
 	void __iomem *non_ehci = hcd->regs;
 	struct device *dev = hcd->self.controller;
@@ -232,9 +232,15 @@ static void ehci_fsl_setup_phy(struct usb_hcd *hcd,
 	case FSL_USB2_PHY_ULPI:
 		if (pdata->controller_ver) {
 			/* controller version 1.6 or above */
-			temp = in_be32(non_ehci + FSL_SOC_USB_CTRL);
-			out_be32(non_ehci + FSL_SOC_USB_CTRL, temp |
-				USB_CTRL_USB_EN | ULPI_PHY_CLK_SEL);
+			setbits32(non_ehci + FSL_SOC_USB_CTRL,
+					ULPI_PHY_CLK_SEL);
+			/*
+			 * Due to controller issue of PHY_CLK_VALID in ULPI
+			 * mode, we set USB_CTRL_USB_EN before checking
+			 * PHY_CLK_VALID, otherwise PHY_CLK_VALID doesn't work.
+			 */
+			clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
+					UTMI_PHY_EN, USB_CTRL_USB_EN);
 		}
 		portsc |= PORT_PTS_ULPI;
 		break;
@@ -247,9 +253,7 @@ static void ehci_fsl_setup_phy(struct usb_hcd *hcd,
 	case FSL_USB2_PHY_UTMI:
 		if (pdata->controller_ver) {
 			/* controller version 1.6 or above */
-			temp = in_be32(non_ehci + FSL_SOC_USB_CTRL);
-			out_be32(non_ehci + FSL_SOC_USB_CTRL, temp |
-				UTMI_PHY_EN | USB_CTRL_USB_EN);
+			setbits32(non_ehci + FSL_SOC_USB_CTRL, UTMI_PHY_EN);
 			mdelay(FSL_UTMI_PHY_DLY);  /* Delay for UTMI PHY CLK to
 						become stable - 10ms*/
 		}
@@ -262,23 +266,33 @@ static void ehci_fsl_setup_phy(struct usb_hcd *hcd,
 	case FSL_USB2_PHY_NONE:
 		break;
 	}
+
+	if (pdata->controller_ver && (phy_mode == FSL_USB2_PHY_ULPI)) {
+		/* check PHY_CLK_VALID to get phy clk valid */
+		if (!spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) &
+				PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0)) {
+			printk(KERN_WARNING "fsl-ehci: USB PHY clock invalid\n");
+			return -EINVAL;
+		}
+	}
+
 	ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]);
+
+	if (phy_mode != FSL_USB2_PHY_ULPI)
+		setbits32(non_ehci + FSL_SOC_USB_CTRL, USB_CTRL_USB_EN);
+
+	return 0;
 }
 
-static void ehci_fsl_usb_setup(struct ehci_hcd *ehci)
+static int ehci_fsl_usb_setup(struct ehci_hcd *ehci)
 {
 	struct usb_hcd *hcd = ehci_to_hcd(ehci);
 	struct fsl_usb2_platform_data *pdata;
 	void __iomem *non_ehci = hcd->regs;
-	u32 temp;
 
 	pdata = hcd->self.controller->platform_data;
 
-	/* Enable PHY interface in the control reg. */
 	if (pdata->have_sysif_regs) {
-		temp = in_be32(non_ehci + FSL_SOC_USB_CTRL);
-		out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004);
-
 		/*
 		* Turn on cache snooping hardware, since some PowerPC platforms
 		* wholly rely on hardware to deal with cache coherent
@@ -293,7 +307,8 @@ static void ehci_fsl_usb_setup(struct ehci_hcd *ehci)
 
 	if ((pdata->operating_mode == FSL_USB2_DR_HOST) ||
 			(pdata->operating_mode == FSL_USB2_DR_OTG))
-		ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0);
+		if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0))
+			return -EINVAL;
 
 	if (pdata->operating_mode == FSL_USB2_MPH_HOST) {
 		unsigned int chip, rev, svr;
@@ -307,9 +322,12 @@ static void ehci_fsl_usb_setup(struct ehci_hcd *ehci)
 			ehci->has_fsl_port_bug = 1;
 
 		if (pdata->port_enables & FSL_USB2_PORT0_ENABLED)
-			ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0);
+			if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0))
+				return -EINVAL;
+
 		if (pdata->port_enables & FSL_USB2_PORT1_ENABLED)
-			ehci_fsl_setup_phy(hcd, pdata->phy_mode, 1);
+			if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 1))
+				return -EINVAL;
 	}
 
 	if (pdata->have_sysif_regs) {
@@ -322,12 +340,15 @@ static void ehci_fsl_usb_setup(struct ehci_hcd *ehci)
 #endif
 		out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001);
 	}
+
+	return 0;
 }
 
 /* called after powerup, by probe or system-pm "wakeup" */
 static int ehci_fsl_reinit(struct ehci_hcd *ehci)
 {
-	ehci_fsl_usb_setup(ehci);
+	if (ehci_fsl_usb_setup(ehci))
+		return -EINVAL;
 	ehci_port_power(ehci, 0);
 
 	return 0;
diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h
index 88403684d10..dbd292e9f0a 100644
--- a/drivers/usb/host/ehci-fsl.h
+++ b/drivers/usb/host/ehci-fsl.h
@@ -61,4 +61,5 @@
 #define PLL_RESET               (1<<8)
 #define UTMI_PHY_EN             (1<<9)
 #define ULPI_PHY_CLK_SEL        (1<<10)
+#define PHY_CLK_VALID		(1<<17)
 #endif				/* _EHCI_FSL_H */
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index 22ca45c079a..3180cb3624d 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -127,12 +127,6 @@ static int __devinit ehci_hcd_grlib_probe(struct platform_device *op)
 	hcd->rsrc_start = res.start;
 	hcd->rsrc_len = resource_size(&res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
-		rv = -EBUSY;
-		goto err_rmr;
-	}
-
 	irq = irq_of_parse_and_map(dn, 0);
 	if (irq == NO_IRQ) {
 		printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
@@ -140,9 +134,9 @@ static int __devinit ehci_hcd_grlib_probe(struct platform_device *op)
 		goto err_irq;
 	}
 
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&op->dev, &res);
 	if (!hcd->regs) {
-		printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
+		pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
 		rv = -ENOMEM;
 		goto err_ioremap;
 	}
@@ -161,17 +155,13 @@ static int __devinit ehci_hcd_grlib_probe(struct platform_device *op)
 
 	rv = usb_add_hcd(hcd, irq, 0);
 	if (rv)
-		goto err_ehci;
+		goto err_ioremap;
 
 	return 0;
 
-err_ehci:
-	iounmap(hcd->regs);
 err_ioremap:
 	irq_dispose_mapping(irq);
 err_irq:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_rmr:
 	usb_put_hcd(hcd);
 
 	return rv;
@@ -188,9 +178,7 @@ static int ehci_hcd_grlib_remove(struct platform_device *op)
 
 	usb_remove_hcd(hcd);
 
-	iounmap(hcd->regs);
 	irq_dispose_mapping(hcd->irq);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 
 	usb_put_hcd(hcd);
 
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b05c6865b61..6bf6c42481e 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -228,7 +228,7 @@ static int ehci_reset (struct ehci_hcd *ehci)
 
 	/* If the EHCI debug controller is active, special care must be
 	 * taken before and after a host controller reset */
-	if (ehci->debug && !dbgp_reset_prep())
+	if (ehci->debug && !dbgp_reset_prep(ehci_to_hcd(ehci)))
 		ehci->debug = NULL;
 
 	command |= CMD_RESET;
@@ -251,7 +251,7 @@ static int ehci_reset (struct ehci_hcd *ehci)
 		tdi_reset (ehci);
 
 	if (ehci->debug)
-		dbgp_external_startup();
+		dbgp_external_startup(ehci_to_hcd(ehci));
 
 	ehci->port_c_suspend = ehci->suspended_ports =
 			ehci->resuming_ports = 0;
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index c7880223738..914ce9370e7 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -353,10 +353,10 @@ static int ehci_bus_resume (struct usb_hcd *hcd)
 		goto shutdown;
 
 	if (unlikely(ehci->debug)) {
-		if (!dbgp_reset_prep())
+		if (!dbgp_reset_prep(hcd))
 			ehci->debug = NULL;
 		else
-			dbgp_external_startup();
+			dbgp_external_startup(hcd);
 	}
 
 	/* Ideally and we've got a real resume here, and no port's power
diff --git a/drivers/usb/host/ehci-ixp4xx.c b/drivers/usb/host/ehci-ixp4xx.c
index 488d401942e..f224c0a48be 100644
--- a/drivers/usb/host/ehci-ixp4xx.c
+++ b/drivers/usb/host/ehci-ixp4xx.c
@@ -98,30 +98,19 @@ static int ixp4xx_ehci_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-				driver->description)) {
-		dev_dbg(&pdev->dev, "controller already in use\n");
-		retval = -EBUSY;
-		goto fail_request_resource;
-	}
-
-	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (hcd->regs == NULL) {
 		dev_dbg(&pdev->dev, "error mapping memory\n");
 		retval = -EFAULT;
-		goto fail_ioremap;
+		goto fail_request_resource;
 	}
 
 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval)
-		goto fail_add_hcd;
+		goto fail_request_resource;
 
 	return retval;
 
-fail_add_hcd:
-	iounmap(hcd->regs);
-fail_ioremap:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 fail_request_resource:
 	usb_put_hcd(hcd);
 fail_create_hcd:
@@ -134,8 +123,6 @@ static int ixp4xx_ehci_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 
 	return 0;
diff --git a/drivers/usb/host/ehci-ls1x.c b/drivers/usb/host/ehci-ls1x.c
index a283e59709d..ca759652626 100644
--- a/drivers/usb/host/ehci-ls1x.c
+++ b/drivers/usb/host/ehci-ls1x.c
@@ -106,29 +106,19 @@ static int ehci_hcd_ls1x_probe(struct platform_device *pdev)
 	hcd->rsrc_start	= res->start;
 	hcd->rsrc_len	= resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		dev_dbg(&pdev->dev, "controller already in use\n");
-		ret = -EBUSY;
-		goto err_put_hcd;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (hcd->regs == NULL) {
 		dev_dbg(&pdev->dev, "error mapping memory\n");
 		ret = -EFAULT;
-		goto err_release_region;
+		goto err_put_hcd;
 	}
 
-	ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
+	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (ret)
-		goto err_iounmap;
+		goto err_put_hcd;
 
 	return ret;
 
-err_iounmap:
-	iounmap(hcd->regs);
-err_release_region:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err_put_hcd:
 	usb_put_hcd(hcd);
 	return ret;
@@ -139,8 +129,6 @@ static int ehci_hcd_ls1x_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 
 	return 0;
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 17dd9e94001..4af4dc5b618 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -133,7 +133,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
 
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len);
 	if (!hcd->regs) {
 		dev_err(&pdev->dev, "ioremap failed\n");
 		ret = -ENOMEM;
@@ -145,17 +145,17 @@ static int ehci_msm_probe(struct platform_device *pdev)
 	 * powering up VBUS, mapping of registers address space and power
 	 * management.
 	 */
-	phy = usb_get_phy(USB_PHY_TYPE_USB2);
+	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
 	if (IS_ERR_OR_NULL(phy)) {
 		dev_err(&pdev->dev, "unable to find transceiver\n");
 		ret = -ENODEV;
-		goto unmap;
+		goto put_hcd;
 	}
 
 	ret = otg_set_host(phy->otg, &hcd->self);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "unable to register with transceiver\n");
-		goto put_transceiver;
+		goto put_hcd;
 	}
 
 	device_init_wakeup(&pdev->dev, 1);
@@ -168,10 +168,6 @@ static int ehci_msm_probe(struct platform_device *pdev)
 
 	return 0;
 
-put_transceiver:
-	usb_put_phy(phy);
-unmap:
-	iounmap(hcd->regs);
 put_hcd:
 	usb_put_hcd(hcd);
 
@@ -187,7 +183,6 @@ static int __devexit ehci_msm_remove(struct platform_device *pdev)
 	pm_runtime_set_suspended(&pdev->dev);
 
 	otg_set_host(phy->otg, NULL);
-	usb_put_phy(phy);
 
 	usb_put_hcd(hcd);
 
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index f6df1ccc961..f7bfc0b898b 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -161,7 +161,7 @@ static int mv_ehci_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	size = sizeof(*ehci_mv) + sizeof(struct clk *) * pdata->clknum;
-	ehci_mv = kzalloc(size, GFP_KERNEL);
+	ehci_mv = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
 	if (ehci_mv == NULL) {
 		dev_err(&pdev->dev, "cannot allocate ehci_hcd_mv\n");
 		retval = -ENOMEM;
@@ -175,12 +175,12 @@ static int mv_ehci_probe(struct platform_device *pdev)
 	ehci_mv->clknum = pdata->clknum;
 	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++) {
 		ehci_mv->clk[clk_i] =
-		    clk_get(&pdev->dev, pdata->clkname[clk_i]);
+		    devm_clk_get(&pdev->dev, pdata->clkname[clk_i]);
 		if (IS_ERR(ehci_mv->clk[clk_i])) {
 			dev_err(&pdev->dev, "error get clck \"%s\"\n",
 				pdata->clkname[clk_i]);
 			retval = PTR_ERR(ehci_mv->clk[clk_i]);
-			goto err_put_clk;
+			goto err_clear_drvdata;
 		}
 	}
 
@@ -188,34 +188,36 @@ static int mv_ehci_probe(struct platform_device *pdev)
 	if (r == NULL) {
 		dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
 		retval = -ENODEV;
-		goto err_put_clk;
+		goto err_clear_drvdata;
 	}
 
-	ehci_mv->phy_regs = ioremap(r->start, resource_size(r));
+	ehci_mv->phy_regs = devm_ioremap(&pdev->dev, r->start,
+					 resource_size(r));
 	if (ehci_mv->phy_regs == 0) {
 		dev_err(&pdev->dev, "failed to map phy I/O memory\n");
 		retval = -EFAULT;
-		goto err_put_clk;
+		goto err_clear_drvdata;
 	}
 
 	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "capregs");
 	if (!r) {
 		dev_err(&pdev->dev, "no I/O memory resource defined\n");
 		retval = -ENODEV;
-		goto err_iounmap_phyreg;
+		goto err_clear_drvdata;
 	}
 
-	ehci_mv->cap_regs = ioremap(r->start, resource_size(r));
+	ehci_mv->cap_regs = devm_ioremap(&pdev->dev, r->start,
+					 resource_size(r));
 	if (ehci_mv->cap_regs == NULL) {
 		dev_err(&pdev->dev, "failed to map I/O memory\n");
 		retval = -EFAULT;
-		goto err_iounmap_phyreg;
+		goto err_clear_drvdata;
 	}
 
 	retval = mv_ehci_enable(ehci_mv);
 	if (retval) {
 		dev_err(&pdev->dev, "init phy error %d\n", retval);
-		goto err_iounmap_capreg;
+		goto err_clear_drvdata;
 	}
 
 	offset = readl(ehci_mv->cap_regs) & CAPLENGTH_MASK;
@@ -239,7 +241,7 @@ static int mv_ehci_probe(struct platform_device *pdev)
 	ehci_mv->mode = pdata->mode;
 	if (ehci_mv->mode == MV_USB_MODE_OTG) {
 #ifdef CONFIG_USB_OTG_UTILS
-		ehci_mv->otg = usb_get_phy(USB_PHY_TYPE_USB2);
+		ehci_mv->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
 		if (IS_ERR_OR_NULL(ehci_mv->otg)) {
 			dev_err(&pdev->dev,
 				"unable to find transceiver\n");
@@ -252,7 +254,7 @@ static int mv_ehci_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"unable to register with transceiver\n");
 			retval = -ENODEV;
-			goto err_put_transceiver;
+			goto err_disable_clk;
 		}
 		/* otg will enable clock before use as host */
 		mv_ehci_disable(ehci_mv);
@@ -286,22 +288,10 @@ static int mv_ehci_probe(struct platform_device *pdev)
 err_set_vbus:
 	if (pdata->set_vbus)
 		pdata->set_vbus(0);
-#ifdef CONFIG_USB_OTG_UTILS
-err_put_transceiver:
-	if (!IS_ERR_OR_NULL(ehci_mv->otg))
-		usb_put_phy(ehci_mv->otg);
-#endif
 err_disable_clk:
 	mv_ehci_disable(ehci_mv);
-err_iounmap_capreg:
-	iounmap(ehci_mv->cap_regs);
-err_iounmap_phyreg:
-	iounmap(ehci_mv->phy_regs);
-err_put_clk:
-	for (clk_i--; clk_i >= 0; clk_i--)
-		clk_put(ehci_mv->clk[clk_i]);
+err_clear_drvdata:
 	platform_set_drvdata(pdev, NULL);
-	kfree(ehci_mv);
 err_put_hcd:
 	usb_put_hcd(hcd);
 
@@ -317,10 +307,8 @@ static int mv_ehci_remove(struct platform_device *pdev)
 	if (hcd->rh_registered)
 		usb_remove_hcd(hcd);
 
-	if (!IS_ERR_OR_NULL(ehci_mv->otg)) {
+	if (!IS_ERR_OR_NULL(ehci_mv->otg))
 		otg_set_host(ehci_mv->otg->otg, NULL);
-		usb_put_phy(ehci_mv->otg);
-	}
 
 	if (ehci_mv->mode == MV_USB_MODE_HOST) {
 		if (ehci_mv->pdata->set_vbus)
@@ -329,15 +317,8 @@ static int mv_ehci_remove(struct platform_device *pdev)
 		mv_ehci_disable(ehci_mv);
 	}
 
-	iounmap(ehci_mv->cap_regs);
-	iounmap(ehci_mv->phy_regs);
-
-	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++)
-		clk_put(ehci_mv->clk[clk_i]);
-
 	platform_set_drvdata(pdev, NULL);
 
-	kfree(ehci_mv);
 	usb_put_hcd(hcd);
 
 	return 0;
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index 34201372c85..4a08fc0b27c 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -25,7 +25,7 @@
 #include <linux/slab.h>
 
 #include <mach/hardware.h>
-#include <mach/mxc_ehci.h>
+#include <linux/platform_data/usb-ehci-mxc.h>
 
 #include <asm/mach-types.h>
 
@@ -121,7 +121,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	if (!hcd)
 		return -ENOMEM;
 
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
 		ret = -ENOMEM;
 		goto err_alloc;
@@ -131,34 +131,28 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	if (!res) {
 		dev_err(dev, "Found HC with no register addr. Check setup!\n");
 		ret = -ENODEV;
-		goto err_get_resource;
+		goto err_alloc;
 	}
 
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		dev_dbg(dev, "controller already in use\n");
-		ret = -EBUSY;
-		goto err_request_mem;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hcd->regs) {
 		dev_err(dev, "error mapping memory\n");
 		ret = -EFAULT;
-		goto err_ioremap;
+		goto err_alloc;
 	}
 
 	/* enable clocks */
-	priv->usbclk = clk_get(dev, "ipg");
+	priv->usbclk = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(priv->usbclk)) {
 		ret = PTR_ERR(priv->usbclk);
-		goto err_clk;
+		goto err_alloc;
 	}
 	clk_prepare_enable(priv->usbclk);
 
-	priv->ahbclk = clk_get(dev, "ahb");
+	priv->ahbclk = devm_clk_get(&pdev->dev, "ahb");
 	if (IS_ERR(priv->ahbclk)) {
 		ret = PTR_ERR(priv->ahbclk);
 		goto err_clk_ahb;
@@ -166,7 +160,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	clk_prepare_enable(priv->ahbclk);
 
 	/* "dr" device has its own clock on i.MX51 */
-	priv->phyclk = clk_get(dev, "phy");
+	priv->phyclk = devm_clk_get(&pdev->dev, "phy");
 	if (IS_ERR(priv->phyclk))
 		priv->phyclk = NULL;
 	if (priv->phyclk)
@@ -245,23 +239,12 @@ err_add:
 	if (pdata && pdata->exit)
 		pdata->exit(pdev);
 err_init:
-	if (priv->phyclk) {
+	if (priv->phyclk)
 		clk_disable_unprepare(priv->phyclk);
-		clk_put(priv->phyclk);
-	}
 
 	clk_disable_unprepare(priv->ahbclk);
-	clk_put(priv->ahbclk);
 err_clk_ahb:
 	clk_disable_unprepare(priv->usbclk);
-	clk_put(priv->usbclk);
-err_clk:
-	iounmap(hcd->regs);
-err_ioremap:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_request_mem:
-err_get_resource:
-	kfree(priv);
 err_alloc:
 	usb_put_hcd(hcd);
 	return ret;
@@ -280,22 +263,14 @@ static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
 		usb_phy_shutdown(pdata->otg);
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	platform_set_drvdata(pdev, NULL);
 
 	clk_disable_unprepare(priv->usbclk);
-	clk_put(priv->usbclk);
 	clk_disable_unprepare(priv->ahbclk);
-	clk_put(priv->ahbclk);
 
-	if (priv->phyclk) {
+	if (priv->phyclk)
 		clk_disable_unprepare(priv->phyclk);
-		clk_put(priv->phyclk);
-	}
-
-	kfree(priv);
 
 	return 0;
 }
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index bb55eb4a7d4..d7fe287d067 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -56,15 +56,6 @@
 #define	EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT		8
 #define	EHCI_INSNREG05_ULPI_WRDATA_SHIFT		0
 
-/* Errata i693 */
-static struct clk	*utmi_p1_fck;
-static struct clk	*utmi_p2_fck;
-static struct clk	*xclk60mhsp1_ck;
-static struct clk	*xclk60mhsp2_ck;
-static struct clk	*usbhost_p1_fck;
-static struct clk	*usbhost_p2_fck;
-static struct clk	*init_60m_fclk;
-
 /*-------------------------------------------------------------------------*/
 
 static const struct hc_driver ehci_omap_hc_driver;
@@ -80,40 +71,6 @@ static inline u32 ehci_read(void __iomem *base, u32 reg)
 	return __raw_readl(base + reg);
 }
 
-/* Erratum i693 workaround sequence */
-static void omap_ehci_erratum_i693(struct ehci_hcd *ehci)
-{
-	int ret = 0;
-
-	/* Switch to the internal 60 MHz clock */
-	ret = clk_set_parent(utmi_p1_fck, init_60m_fclk);
-	if (ret != 0)
-		ehci_err(ehci, "init_60m_fclk set parent"
-			"failed error:%d\n", ret);
-
-	ret = clk_set_parent(utmi_p2_fck, init_60m_fclk);
-	if (ret != 0)
-		ehci_err(ehci, "init_60m_fclk set parent"
-			"failed error:%d\n", ret);
-
-	clk_enable(usbhost_p1_fck);
-	clk_enable(usbhost_p2_fck);
-
-	/* Wait 1ms and switch back to the external clock */
-	mdelay(1);
-	ret = clk_set_parent(utmi_p1_fck, xclk60mhsp1_ck);
-	if (ret != 0)
-		ehci_err(ehci, "xclk60mhsp1_ck set parent"
-			"failed error:%d\n", ret);
-
-	ret = clk_set_parent(utmi_p2_fck, xclk60mhsp2_ck);
-	if (ret != 0)
-		ehci_err(ehci, "xclk60mhsp2_ck set parent"
-			"failed error:%d\n", ret);
-
-	clk_disable(usbhost_p1_fck);
-	clk_disable(usbhost_p2_fck);
-}
 
 static void omap_ehci_soft_phy_reset(struct usb_hcd *hcd, u8 port)
 {
@@ -195,50 +152,6 @@ static int omap_ehci_init(struct usb_hcd *hcd)
 	return rc;
 }
 
-static int omap_ehci_hub_control(
-	struct usb_hcd	*hcd,
-	u16		typeReq,
-	u16		wValue,
-	u16		wIndex,
-	char		*buf,
-	u16		wLength
-)
-{
-	struct ehci_hcd	*ehci = hcd_to_ehci(hcd);
-	u32 __iomem *status_reg = &ehci->regs->port_status[
-				(wIndex & 0xff) - 1];
-	u32		temp;
-	unsigned long	flags;
-	int		retval = 0;
-
-	spin_lock_irqsave(&ehci->lock, flags);
-
-	if (typeReq == SetPortFeature && wValue == USB_PORT_FEAT_SUSPEND) {
-		temp = ehci_readl(ehci, status_reg);
-		if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0) {
-			retval = -EPIPE;
-			goto done;
-		}
-
-		temp &= ~PORT_WKCONN_E;
-		temp |= PORT_WKDISC_E | PORT_WKOC_E;
-		ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
-
-		omap_ehci_erratum_i693(ehci);
-
-		set_bit((wIndex & 0xff) - 1, &ehci->suspended_ports);
-		goto done;
-	}
-
-	spin_unlock_irqrestore(&ehci->lock, flags);
-
-	/* Handle the hub control events here */
-	return ehci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
-done:
-	spin_unlock_irqrestore(&ehci->lock, flags);
-	return retval;
-}
-
 static void disable_put_regulator(
 		struct ehci_hcd_omap_platform_data *pdata)
 {
@@ -351,79 +264,9 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 		goto err_pm_runtime;
 	}
 
-	/* get clocks */
-	utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk");
-	if (IS_ERR(utmi_p1_fck)) {
-		ret = PTR_ERR(utmi_p1_fck);
-		dev_err(dev, "utmi_p1_gfclk failed error:%d\n",	ret);
-		goto err_add_hcd;
-	}
-
-	xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
-	if (IS_ERR(xclk60mhsp1_ck)) {
-		ret = PTR_ERR(xclk60mhsp1_ck);
-		dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
-		goto err_utmi_p1_fck;
-	}
-
-	utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk");
-	if (IS_ERR(utmi_p2_fck)) {
-		ret = PTR_ERR(utmi_p2_fck);
-		dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
-		goto err_xclk60mhsp1_ck;
-	}
-
-	xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
-	if (IS_ERR(xclk60mhsp2_ck)) {
-		ret = PTR_ERR(xclk60mhsp2_ck);
-		dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
-		goto err_utmi_p2_fck;
-	}
-
-	usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk");
-	if (IS_ERR(usbhost_p1_fck)) {
-		ret = PTR_ERR(usbhost_p1_fck);
-		dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret);
-		goto err_xclk60mhsp2_ck;
-	}
-
-	usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk");
-	if (IS_ERR(usbhost_p2_fck)) {
-		ret = PTR_ERR(usbhost_p2_fck);
-		dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret);
-		goto err_usbhost_p1_fck;
-	}
-
-	init_60m_fclk = clk_get(dev, "init_60m_fclk");
-	if (IS_ERR(init_60m_fclk)) {
-		ret = PTR_ERR(init_60m_fclk);
-		dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
-		goto err_usbhost_p2_fck;
-	}
 
 	return 0;
 
-err_usbhost_p2_fck:
-	clk_put(usbhost_p2_fck);
-
-err_usbhost_p1_fck:
-	clk_put(usbhost_p1_fck);
-
-err_xclk60mhsp2_ck:
-	clk_put(xclk60mhsp2_ck);
-
-err_utmi_p2_fck:
-	clk_put(utmi_p2_fck);
-
-err_xclk60mhsp1_ck:
-	clk_put(xclk60mhsp1_ck);
-
-err_utmi_p1_fck:
-	clk_put(utmi_p1_fck);
-
-err_add_hcd:
-	usb_remove_hcd(hcd);
-
 err_pm_runtime:
 	disable_put_regulator(pdata);
 	pm_runtime_put_sync(dev);
@@ -454,14 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
 	iounmap(hcd->regs);
 	usb_put_hcd(hcd);
 
-	clk_put(utmi_p1_fck);
-	clk_put(utmi_p2_fck);
-	clk_put(xclk60mhsp1_ck);
-	clk_put(xclk60mhsp2_ck);
-	clk_put(usbhost_p1_fck);
-	clk_put(usbhost_p2_fck);
-	clk_put(init_60m_fclk);
-
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 
@@ -532,7 +367,7 @@ static const struct hc_driver ehci_omap_hc_driver = {
 	 * root hub support
 	 */
 	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= omap_ehci_hub_control,
+	.hub_control		= ehci_hub_control,
 	.bus_suspend		= ehci_bus_suspend,
 	.bus_resume		= ehci_bus_resume,
 
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 8892d3642ce..8e7eca62f16 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -13,7 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/mbus.h>
 #include <linux/clk.h>
-#include <plat/ehci-orion.h>
+#include <linux/platform_data/usb-ehci-orion.h>
 
 #define rdl(off)	__raw_readl(hcd->regs + (off))
 #define wrl(off, val)	__raw_writel((val), hcd->regs + (off))
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 4b1d896d5a2..764e0100b6f 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -82,10 +82,14 @@ static int __devinit ehci_platform_probe(struct platform_device *dev)
 {
 	struct usb_hcd *hcd;
 	struct resource *res_mem;
+	struct usb_ehci_pdata *pdata = dev->dev.platform_data;
 	int irq;
 	int err = -ENOMEM;
 
-	BUG_ON(!dev->dev.platform_data);
+	if (!pdata) {
+		WARN_ON(1);
+		return -ENODEV;
+	}
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -101,10 +105,18 @@ static int __devinit ehci_platform_probe(struct platform_device *dev)
 		return -ENXIO;
 	}
 
+	if (pdata->power_on) {
+		err = pdata->power_on(dev);
+		if (err < 0)
+			return err;
+	}
+
 	hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev,
 			     dev_name(&dev->dev));
-	if (!hcd)
-		return -ENOMEM;
+	if (!hcd) {
+		err = -ENOMEM;
+		goto err_power;
+	}
 
 	hcd->rsrc_start = res_mem->start;
 	hcd->rsrc_len = resource_size(res_mem);
@@ -116,8 +128,10 @@ static int __devinit ehci_platform_probe(struct platform_device *dev)
 	}
 
 	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs)
+	if (!hcd->regs) {
+		err = -ENOMEM;
 		goto err_release_region;
+	}
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err)
 		goto err_iounmap;
@@ -132,12 +146,17 @@ err_release_region:
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err_put_hcd:
 	usb_put_hcd(hcd);
+err_power:
+	if (pdata->power_off)
+		pdata->power_off(dev);
+
 	return err;
 }
 
 static int __devexit ehci_platform_remove(struct platform_device *dev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
+	struct usb_ehci_pdata *pdata = dev->dev.platform_data;
 
 	usb_remove_hcd(hcd);
 	iounmap(hcd->regs);
@@ -145,6 +164,9 @@ static int __devexit ehci_platform_remove(struct platform_device *dev)
 	usb_put_hcd(hcd);
 	platform_set_drvdata(dev, NULL);
 
+	if (pdata->power_off)
+		pdata->power_off(dev);
+
 	return 0;
 }
 
@@ -153,14 +175,32 @@ static int __devexit ehci_platform_remove(struct platform_device *dev)
 static int ehci_platform_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct usb_ehci_pdata *pdata = dev->platform_data;
+	struct platform_device *pdev =
+		container_of(dev, struct platform_device, dev);
 	bool do_wakeup = device_may_wakeup(dev);
+	int ret;
+
+	ret = ehci_suspend(hcd, do_wakeup);
 
-	return ehci_suspend(hcd, do_wakeup);
+	if (pdata->power_suspend)
+		pdata->power_suspend(pdev);
+
+	return ret;
 }
 
 static int ehci_platform_resume(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct usb_ehci_pdata *pdata = dev->platform_data;
+	struct platform_device *pdev =
+		container_of(dev, struct platform_device, dev);
+
+	if (pdata->power_on) {
+		int err = pdata->power_on(pdev);
+		if (err < 0)
+			return err;
+	}
 
 	ehci_resume(hcd, false);
 	return 0;
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index bbbe89dfd88..fa937d05a02 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -114,12 +114,6 @@ static int __devinit ehci_hcd_ppc_of_probe(struct platform_device *op)
 	hcd->rsrc_start = res.start;
 	hcd->rsrc_len = resource_size(&res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
-		rv = -EBUSY;
-		goto err_rmr;
-	}
-
 	irq = irq_of_parse_and_map(dn, 0);
 	if (irq == NO_IRQ) {
 		printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
@@ -127,9 +121,9 @@ static int __devinit ehci_hcd_ppc_of_probe(struct platform_device *op)
 		goto err_irq;
 	}
 
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&op->dev, &res);
 	if (!hcd->regs) {
-		printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
+		pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
 		rv = -ENOMEM;
 		goto err_ioremap;
 	}
@@ -139,8 +133,10 @@ static int __devinit ehci_hcd_ppc_of_probe(struct platform_device *op)
 	if (np != NULL) {
 		/* claim we really affected by usb23 erratum */
 		if (!of_address_to_resource(np, 0, &res))
-			ehci->ohci_hcctrl_reg = ioremap(res.start +
-					OHCI_HCCTRL_OFFSET, OHCI_HCCTRL_LEN);
+			ehci->ohci_hcctrl_reg =
+				devm_ioremap(&op->dev,
+					     res.start + OHCI_HCCTRL_OFFSET,
+					     OHCI_HCCTRL_LEN);
 		else
 			pr_debug("%s: no ohci offset in fdt\n", __FILE__);
 		if (!ehci->ohci_hcctrl_reg) {
@@ -169,19 +165,13 @@ static int __devinit ehci_hcd_ppc_of_probe(struct platform_device *op)
 
 	rv = usb_add_hcd(hcd, irq, 0);
 	if (rv)
-		goto err_ehci;
+		goto err_ioremap;
 
 	return 0;
 
-err_ehci:
-	if (ehci->has_amcc_usb23)
-		iounmap(ehci->ohci_hcctrl_reg);
-	iounmap(hcd->regs);
 err_ioremap:
 	irq_dispose_mapping(irq);
 err_irq:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_rmr:
 	usb_put_hcd(hcd);
 
 	return rv;
@@ -202,9 +192,7 @@ static int ehci_hcd_ppc_of_remove(struct platform_device *op)
 
 	usb_remove_hcd(hcd);
 
-	iounmap(hcd->regs);
 	irq_dispose_mapping(hcd->irq);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 
 	/* use request_mem_region to test if the ohci driver is loaded.  if so
 	 * ensure the ohci core is operational.
@@ -222,8 +210,6 @@ static int ehci_hcd_ppc_of_remove(struct platform_device *op)
 				pr_debug("%s: no ohci offset in fdt\n", __FILE__);
 			of_node_put(np);
 		}
-
-		iounmap(ehci->ohci_hcctrl_reg);
 	}
 	usb_put_hcd(hcd);
 
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 9bc39ca460c..4b66374bdc8 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -128,9 +128,17 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh)
 	else {
 		qtd = list_entry (qh->qtd_list.next,
 				struct ehci_qtd, qtd_list);
-		/* first qtd may already be partially processed */
-		if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current)
+		/*
+		 * first qtd may already be partially processed.
+		 * If we come here during unlink, the QH overlay region
+		 * might have reference to the just unlinked qtd. The
+		 * qtd is updated in qh_completions(). Update the QH
+		 * overlay here.
+		 */
+		if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current) {
+			qh->hw->hw_qtd_next = qtd->hw_next;
 			qtd = NULL;
+		}
 	}
 
 	if (qtd)
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 9d8f1dd57cb..85b74be202e 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -16,7 +16,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/of_gpio.h>
-#include <plat/ehci.h>
+#include <linux/platform_data/usb-ehci-s5p.h>
 #include <plat/usb-phy.h>
 
 #define EHCI_INSNREG00(base)			(base + 0x90)
@@ -128,7 +128,7 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev)
 	}
 
 	s5p_ehci->hcd = hcd;
-	s5p_ehci->clk = clk_get(&pdev->dev, "usbhost");
+	s5p_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
 
 	if (IS_ERR(s5p_ehci->clk)) {
 		dev_err(&pdev->dev, "Failed to get usbhost clock\n");
@@ -138,7 +138,7 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev)
 
 	err = clk_enable(s5p_ehci->clk);
 	if (err)
-		goto fail_clken;
+		goto fail_clk;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -184,8 +184,6 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev)
 
 fail_io:
 	clk_disable(s5p_ehci->clk);
-fail_clken:
-	clk_put(s5p_ehci->clk);
 fail_clk:
 	usb_put_hcd(hcd);
 	return err;
@@ -203,7 +201,6 @@ static int __devexit s5p_ehci_remove(struct platform_device *pdev)
 		pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
 
 	clk_disable(s5p_ehci->clk);
-	clk_put(s5p_ehci->clk);
 
 	usb_put_hcd(hcd);
 
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index 58c96bd50d2..efad02d947f 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -40,7 +40,7 @@ static int ehci_sead3_setup(struct usb_hcd *hcd)
 	ehci->need_io_watchdog = 0;
 
 	/* Set burst length to 16 words. */
-	ehci_writel(ehci, 0x1010, &ehci->regs->reserved[1]);
+	ehci_writel(ehci, 0x1010, &ehci->regs->reserved1[1]);
 
 	return ret;
 }
@@ -112,17 +112,11 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		pr_debug("request_mem_region failed");
-		ret = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hcd->regs) {
 		pr_debug("ioremap failed");
 		ret = -ENOMEM;
-		goto err2;
+		goto err1;
 	}
 
 	/* Root hub has integrated TT. */
@@ -135,9 +129,6 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	iounmap(hcd->regs);
-err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err1:
 	usb_put_hcd(hcd);
 	return ret;
@@ -148,8 +139,6 @@ static int ehci_hcd_sead3_drv_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	platform_set_drvdata(pdev, NULL);
 
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index b3f1e3650da..6081e1ed3ac 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -125,33 +125,27 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
-				driver->description)) {
-		dev_dbg(&pdev->dev, "controller already in use\n");
-		ret = -EBUSY;
-		goto fail_request_resource;
-	}
-
-	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (hcd->regs == NULL) {
 		dev_dbg(&pdev->dev, "error mapping memory\n");
 		ret = -ENXIO;
-		goto fail_ioremap;
+		goto fail_request_resource;
 	}
 
-	priv = kmalloc(sizeof(struct ehci_sh_priv), GFP_KERNEL);
+	priv = devm_kzalloc(&pdev->dev, sizeof(struct ehci_sh_priv),
+			    GFP_KERNEL);
 	if (!priv) {
 		dev_dbg(&pdev->dev, "error allocating priv data\n");
 		ret = -ENOMEM;
-		goto fail_alloc;
+		goto fail_request_resource;
 	}
 
 	/* These are optional, we don't care if they fail */
-	priv->fclk = clk_get(&pdev->dev, "usb_fck");
+	priv->fclk = devm_clk_get(&pdev->dev, "usb_fck");
 	if (IS_ERR(priv->fclk))
 		priv->fclk = NULL;
 
-	priv->iclk = clk_get(&pdev->dev, "usb_ick");
+	priv->iclk = devm_clk_get(&pdev->dev, "usb_ick");
 	if (IS_ERR(priv->iclk))
 		priv->iclk = NULL;
 
@@ -176,14 +170,6 @@ fail_add_hcd:
 	clk_disable(priv->iclk);
 	clk_disable(priv->fclk);
 
-	clk_put(priv->iclk);
-	clk_put(priv->fclk);
-
-	kfree(priv);
-fail_alloc:
-	iounmap(hcd->regs);
-fail_ioremap:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 fail_request_resource:
 	usb_put_hcd(hcd);
 fail_create_hcd:
@@ -198,19 +184,12 @@ static int __exit ehci_hcd_sh_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd = priv->hcd;
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	platform_set_drvdata(pdev, NULL);
 
 	clk_disable(priv->fclk);
 	clk_disable(priv->iclk);
 
-	clk_put(priv->fclk);
-	clk_put(priv->iclk);
-
-	kfree(priv);
-
 	return 0;
 }
 
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 950e95efa38..6223d175784 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -27,7 +27,7 @@
 #include <linux/of_gpio.h>
 #include <linux/pm_runtime.h>
 
-#include <mach/usb_phy.h>
+#include <linux/usb/tegra_usb_phy.h>
 #include <mach/iomap.h>
 
 #define TEGRA_USB_DMA_ALIGN 32
@@ -49,7 +49,7 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd)
 
 	clk_prepare_enable(tegra->emc_clk);
 	clk_prepare_enable(tegra->clk);
-	tegra_usb_phy_power_on(tegra->phy);
+	usb_phy_set_suspend(&tegra->phy->u_phy, 0);
 	tegra->host_resumed = 1;
 }
 
@@ -58,7 +58,7 @@ static void tegra_ehci_power_down(struct usb_hcd *hcd)
 	struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);
 
 	tegra->host_resumed = 0;
-	tegra_usb_phy_power_off(tegra->phy);
+	usb_phy_set_suspend(&tegra->phy->u_phy, 1);
 	clk_disable_unprepare(tegra->clk);
 	clk_disable_unprepare(tegra->emc_clk);
 }
@@ -634,7 +634,8 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 
 	setup_vbus_gpio(pdev, pdata);
 
-	tegra = kzalloc(sizeof(struct tegra_ehci_hcd), GFP_KERNEL);
+	tegra = devm_kzalloc(&pdev->dev, sizeof(struct tegra_ehci_hcd),
+			     GFP_KERNEL);
 	if (!tegra)
 		return -ENOMEM;
 
@@ -642,13 +643,12 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 					dev_name(&pdev->dev));
 	if (!hcd) {
 		dev_err(&pdev->dev, "Unable to create HCD\n");
-		err = -ENOMEM;
-		goto fail_hcd;
+		return -ENOMEM;
 	}
 
 	platform_set_drvdata(pdev, tegra);
 
-	tegra->clk = clk_get(&pdev->dev, NULL);
+	tegra->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(tegra->clk)) {
 		dev_err(&pdev->dev, "Can't get ehci clock\n");
 		err = PTR_ERR(tegra->clk);
@@ -657,9 +657,9 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 
 	err = clk_prepare_enable(tegra->clk);
 	if (err)
-		goto fail_clken;
+		goto fail_clk;
 
-	tegra->emc_clk = clk_get(&pdev->dev, "emc");
+	tegra->emc_clk = devm_clk_get(&pdev->dev, "emc");
 	if (IS_ERR(tegra->emc_clk)) {
 		dev_err(&pdev->dev, "Can't get emc clock\n");
 		err = PTR_ERR(tegra->emc_clk);
@@ -677,7 +677,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	}
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
-	hcd->regs = ioremap(res->start, resource_size(res));
+	hcd->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (!hcd->regs) {
 		dev_err(&pdev->dev, "Failed to remap I/O memory\n");
 		err = -ENOMEM;
@@ -702,7 +702,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 		default:
 			err = -ENODEV;
 			dev_err(&pdev->dev, "unknown usb instance\n");
-			goto fail_phy;
+			goto fail_io;
 		}
 	}
 
@@ -712,10 +712,12 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	if (IS_ERR(tegra->phy)) {
 		dev_err(&pdev->dev, "Failed to open USB phy\n");
 		err = -ENXIO;
-		goto fail_phy;
+		goto fail_io;
 	}
 
-	err = tegra_usb_phy_power_on(tegra->phy);
+	usb_phy_init(&tegra->phy->u_phy);
+
+	err = usb_phy_set_suspend(&tegra->phy->u_phy, 0);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to power on the phy\n");
 		goto fail;
@@ -733,7 +735,8 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_USB_OTG_UTILS
 	if (pdata->operating_mode == TEGRA_USB_OTG) {
-		tegra->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
+		tegra->transceiver =
+			devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
 		if (!IS_ERR_OR_NULL(tegra->transceiver))
 			otg_set_host(tegra->transceiver->otg, &hcd->self);
 	}
@@ -757,25 +760,16 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 
 fail:
 #ifdef CONFIG_USB_OTG_UTILS
-	if (!IS_ERR_OR_NULL(tegra->transceiver)) {
+	if (!IS_ERR_OR_NULL(tegra->transceiver))
 		otg_set_host(tegra->transceiver->otg, NULL);
-		usb_put_phy(tegra->transceiver);
-	}
 #endif
-	tegra_usb_phy_close(tegra->phy);
-fail_phy:
-	iounmap(hcd->regs);
+	usb_phy_shutdown(&tegra->phy->u_phy);
 fail_io:
 	clk_disable_unprepare(tegra->emc_clk);
-	clk_put(tegra->emc_clk);
 fail_emc_clk:
 	clk_disable_unprepare(tegra->clk);
-fail_clken:
-	clk_put(tegra->clk);
 fail_clk:
 	usb_put_hcd(hcd);
-fail_hcd:
-	kfree(tegra);
 	return err;
 }
 
@@ -792,25 +786,19 @@ static int tegra_ehci_remove(struct platform_device *pdev)
 	pm_runtime_put_noidle(&pdev->dev);
 
 #ifdef CONFIG_USB_OTG_UTILS
-	if (!IS_ERR_OR_NULL(tegra->transceiver)) {
+	if (!IS_ERR_OR_NULL(tegra->transceiver))
 		otg_set_host(tegra->transceiver->otg, NULL);
-		usb_put_phy(tegra->transceiver);
-	}
 #endif
 
 	usb_remove_hcd(hcd);
 	usb_put_hcd(hcd);
 
-	tegra_usb_phy_close(tegra->phy);
-	iounmap(hcd->regs);
+	usb_phy_shutdown(&tegra->phy->u_phy);
 
 	clk_disable_unprepare(tegra->clk);
-	clk_put(tegra->clk);
 
 	clk_disable_unprepare(tegra->emc_clk);
-	clk_put(tegra->emc_clk);
 
-	kfree(tegra);
 	return 0;
 }
 
diff --git a/drivers/usb/host/ehci-timer.c b/drivers/usb/host/ehci-timer.c
index eb896a2c8f2..20dbdcbe9b0 100644
--- a/drivers/usb/host/ehci-timer.c
+++ b/drivers/usb/host/ehci-timer.c
@@ -118,7 +118,8 @@ static void ehci_poll_ASS(struct ehci_hcd *ehci)
 			ehci_enable_event(ehci, EHCI_HRTIMER_POLL_ASS, true);
 			return;
 		}
-		ehci_warn(ehci, "Waited too long for the async schedule status, giving up\n");
+		ehci_dbg(ehci, "Waited too long for the async schedule status (%x/%x), giving up\n",
+				want, actual);
 	}
 	ehci->ASS_poll_count = 0;
 
@@ -163,7 +164,8 @@ static void ehci_poll_PSS(struct ehci_hcd *ehci)
 			ehci_enable_event(ehci, EHCI_HRTIMER_POLL_PSS, true);
 			return;
 		}
-		ehci_warn(ehci, "Waited too long for the periodic schedule status, giving up\n");
+		ehci_dbg(ehci, "Waited too long for the periodic schedule status (%x/%x), giving up\n",
+				want, actual);
 	}
 	ehci->PSS_poll_count = 0;
 
diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c
index 4d147c4e33f..96722bfebc8 100644
--- a/drivers/usb/host/ehci-vt8500.c
+++ b/drivers/usb/host/ehci-vt8500.c
@@ -16,6 +16,7 @@
  *
  */
 
+#include <linux/of.h>
 #include <linux/platform_device.h>
 
 static int ehci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
@@ -106,17 +107,11 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		pr_debug("request_mem_region failed");
-		ret = -EBUSY;
-		goto err1;
-	}
-
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hcd->regs) {
 		pr_debug("ioremap failed");
 		ret = -ENOMEM;
-		goto err2;
+		goto err1;
 	}
 
 	ehci = hcd_to_ehci(hcd);
@@ -129,9 +124,6 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	iounmap(hcd->regs);
-err2:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err1:
 	usb_put_hcd(hcd);
 	return ret;
@@ -142,14 +134,18 @@ static int vt8500_ehci_drv_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
 	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
 
+static const struct of_device_id vt8500_ehci_ids[] = {
+	{ .compatible = "via,vt8500-ehci", },
+	{ .compatible = "wm,prizm-ehci", },
+	{}
+};
+
 static struct platform_driver vt8500_ehci_driver = {
 	.probe		= vt8500_ehci_drv_probe,
 	.remove		= vt8500_ehci_drv_remove,
@@ -157,7 +153,9 @@ static struct platform_driver vt8500_ehci_driver = {
 	.driver = {
 		.name	= "vt8500-ehci",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(vt8500_ehci_ids),
 	}
 };
 
 MODULE_ALIAS("platform:vt8500-ehci");
+MODULE_DEVICE_TABLE(of, vt8500_ehci_ids);
diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c
index 39f24fa37eb..6a3f921a5d7 100644
--- a/drivers/usb/host/ehci-xilinx-of.c
+++ b/drivers/usb/host/ehci-xilinx-of.c
@@ -152,12 +152,6 @@ static int __devinit ehci_hcd_xilinx_of_probe(struct platform_device *op)
 	hcd->rsrc_start = res.start;
 	hcd->rsrc_len = resource_size(&res);
 
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
-		rv = -EBUSY;
-		goto err_rmr;
-	}
-
 	irq = irq_of_parse_and_map(dn, 0);
 	if (!irq) {
 		printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
@@ -165,11 +159,11 @@ static int __devinit ehci_hcd_xilinx_of_probe(struct platform_device *op)
 		goto err_irq;
 	}
 
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = devm_request_and_ioremap(&op->dev, &res);
 	if (!hcd->regs) {
-		printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
+		pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
 		rv = -ENOMEM;
-		goto err_ioremap;
+		goto err_irq;
 	}
 
 	ehci = hcd_to_ehci(hcd);
@@ -200,12 +194,7 @@ static int __devinit ehci_hcd_xilinx_of_probe(struct platform_device *op)
 	if (rv == 0)
 		return 0;
 
-	iounmap(hcd->regs);
-
-err_ioremap:
 err_irq:
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_rmr:
 	usb_put_hcd(hcd);
 
 	return rv;
@@ -227,9 +216,6 @@ static int ehci_hcd_xilinx_of_remove(struct platform_device *op)
 
 	usb_remove_hcd(hcd);
 
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-
 	usb_put_hcd(hcd);
 
 	return 0;
diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c
index 2dc8a40e39d..8f18538e0ff 100644
--- a/drivers/usb/host/fhci-sched.c
+++ b/drivers/usb/host/fhci-sched.c
@@ -261,8 +261,7 @@ static void move_head_to_tail(struct list_head *list)
 	struct list_head *node = list->next;
 
 	if (!list_empty(list)) {
-		list_del(node);
-		list_add_tail(node, list);
+		list_move_tail(node, list);
 	}
 }
 
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 22ff6b3a676..1e771292383 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -133,6 +133,8 @@ static int usb_get_ver_info(struct device_node *np)
 			ver = FSL_USB_VER_1_6;
 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2"))
 			ver = FSL_USB_VER_2_2;
+		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4"))
+			ver = FSL_USB_VER_2_4;
 		else /* for previous controller versions */
 			ver = FSL_USB_VER_OLD;
 
diff --git a/drivers/usb/host/imx21-hcd.h b/drivers/usb/host/imx21-hcd.h
index 87b29fd971b..c005770a73e 100644
--- a/drivers/usb/host/imx21-hcd.h
+++ b/drivers/usb/host/imx21-hcd.h
@@ -24,7 +24,7 @@
 #ifndef __LINUX_IMX21_HCD_H__
 #define __LINUX_IMX21_HCD_H__
 
-#include <mach/mx21-usbhost.h>
+#include <linux/platform_data/usb-mx2.h>
 
 #define NUM_ISO_ETDS 	2
 #define USB_NUM_ETD	32
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 2ed112d3e15..256326322cf 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -543,12 +543,12 @@ static void postproc_ep(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep)
 			    usb_pipein(urb->pipe) ? "IN" : "OUT", ep->nextpid,
 			    short_ok ? "" : "not_",
 			    PTD_GET_COUNT(ptd), ep->maxpacket, len);
+			/* save the data underrun error code for later and
+			 * proceed with the status stage
+			 */
+			urb->actual_length += PTD_GET_COUNT(ptd);
 			if (usb_pipecontrol(urb->pipe)) {
 				ep->nextpid = USB_PID_ACK;
-				/* save the data underrun error code for later and
-				 * proceed with the status stage
-				 */
-				urb->actual_length += PTD_GET_COUNT(ptd);
 				BUG_ON(urb->actual_length > urb->transfer_buffer_length);
 
 				if (urb->status == -EINPROGRESS)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index a665b3eaa74..0bf72f943b0 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -467,7 +467,8 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
 	/* From the GPIO notifying the over-current situation, find
 	 * out the corresponding port */
 	at91_for_each_port(port) {
-		if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
+		if (gpio_is_valid(pdata->overcurrent_pin[port]) &&
+				gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
 			gpio = pdata->overcurrent_pin[port];
 			break;
 		}
@@ -570,6 +571,16 @@ static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 
 	if (pdata) {
 		at91_for_each_port(i) {
+			/*
+			 * do not configure PIO if not in relation with
+			 * real USB port on board
+			 */
+			if (i >= pdata->ports) {
+				pdata->vbus_pin[i] = -EINVAL;
+				pdata->overcurrent_pin[i] = -EINVAL;
+				break;
+			}
+
 			if (!gpio_is_valid(pdata->vbus_pin[i]))
 				continue;
 			gpio = pdata->vbus_pin[i];
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 269b1e0f769..0b815a85681 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -17,7 +17,7 @@
 #include <linux/clk.h>
 
 #include <mach/da8xx.h>
-#include <mach/usb.h>
+#include <linux/platform_data/usb-davinci.h>
 
 #ifndef CONFIG_ARCH_DAVINCI_DA8XX
 #error "This file is DA8xx bus glue.  Define CONFIG_ARCH_DAVINCI_DA8XX."
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index fc3091bd237..20a50081f92 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -14,7 +14,7 @@
 #include <linux/clk.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
-#include <mach/ohci.h>
+#include <linux/platform_data/usb-exynos.h>
 #include <plat/usb-phy.h>
 
 struct exynos_ohci_hcd {
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 2b1e8d84c87..4a1d64d9233 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -893,7 +893,7 @@ static void ohci_stop (struct usb_hcd *hcd)
 	ohci_dump (ohci, 1);
 
 	if (quirk_nec(ohci))
-		flush_work_sync(&ohci->nec_work);
+		flush_work(&ohci->nec_work);
 
 	ohci_usb_reset (ohci);
 	ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
@@ -1049,7 +1049,7 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_at91_driver
 #endif
 
-#if defined(CONFIG_ARCH_PNX4008) || defined(CONFIG_ARCH_LPC32XX)
+#ifdef CONFIG_ARCH_LPC32XX
 #include "ohci-nxp.c"
 #define PLATFORM_DRIVER		usb_hcd_nxp_driver
 #endif
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index a446386bf77..e068f034cb9 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -2,7 +2,6 @@
  * driver for NXP USB Host devices
  *
  * Currently supported OHCI host devices:
- * - Philips PNX4008
  * - NXP LPC32xx
  *
  * Authors: Dmitry Chigirev <source@mvista.com>
@@ -66,38 +65,6 @@ static struct clk *usb_pll_clk;
 static struct clk *usb_dev_clk;
 static struct clk *usb_otg_clk;
 
-static void isp1301_configure_pnx4008(void)
-{
-	/* PNX4008 only supports DAT_SE0 USB mode */
-	/* PNX4008 R2A requires setting the MAX603 to output 3.6V */
-	/* Power up externel charge-pump */
-
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_MODE_CONTROL_1, MC1_DAT_SE0 | MC1_SPEED_REG);
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_MODE_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR,
-		~(MC1_DAT_SE0 | MC1_SPEED_REG));
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_MODE_CONTROL_2,
-		MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL);
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_MODE_CONTROL_2 | ISP1301_I2C_REG_CLEAR_ADDR,
-		~(MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL));
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_OTG_CONTROL_1, OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN);
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR,
-		~(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN));
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_INTERRUPT_LATCH | ISP1301_I2C_REG_CLEAR_ADDR, 0xFF);
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_INTERRUPT_FALLING | ISP1301_I2C_REG_CLEAR_ADDR,
-		0xFF);
-	i2c_smbus_write_byte_data(isp1301_i2c_client,
-		ISP1301_I2C_INTERRUPT_RISING | ISP1301_I2C_REG_CLEAR_ADDR,
-		0xFF);
-}
-
 static void isp1301_configure_lpc32xx(void)
 {
 	/* LPC32XX only supports DAT_SE0 USB mode */
@@ -149,10 +116,7 @@ static void isp1301_configure_lpc32xx(void)
 
 static void isp1301_configure(void)
 {
-	if (machine_is_pnx4008())
-		isp1301_configure_pnx4008();
-	else
-		isp1301_configure_lpc32xx();
+	isp1301_configure_lpc32xx();
 }
 
 static inline void isp1301_vbus_on(void)
@@ -241,47 +205,6 @@ static const struct hc_driver ohci_nxp_hc_driver = {
 	.start_port_reset = ohci_start_port_reset,
 };
 
-static void nxp_set_usb_bits(void)
-{
-	if (machine_is_pnx4008()) {
-		start_int_set_falling_edge(SE_USB_OTG_ATX_INT_N);
-		start_int_ack(SE_USB_OTG_ATX_INT_N);
-		start_int_umask(SE_USB_OTG_ATX_INT_N);
-
-		start_int_set_rising_edge(SE_USB_OTG_TIMER_INT);
-		start_int_ack(SE_USB_OTG_TIMER_INT);
-		start_int_umask(SE_USB_OTG_TIMER_INT);
-
-		start_int_set_rising_edge(SE_USB_I2C_INT);
-		start_int_ack(SE_USB_I2C_INT);
-		start_int_umask(SE_USB_I2C_INT);
-
-		start_int_set_rising_edge(SE_USB_INT);
-		start_int_ack(SE_USB_INT);
-		start_int_umask(SE_USB_INT);
-
-		start_int_set_rising_edge(SE_USB_NEED_CLK_INT);
-		start_int_ack(SE_USB_NEED_CLK_INT);
-		start_int_umask(SE_USB_NEED_CLK_INT);
-
-		start_int_set_rising_edge(SE_USB_AHB_NEED_CLK_INT);
-		start_int_ack(SE_USB_AHB_NEED_CLK_INT);
-		start_int_umask(SE_USB_AHB_NEED_CLK_INT);
-	}
-}
-
-static void nxp_unset_usb_bits(void)
-{
-	if (machine_is_pnx4008()) {
-		start_int_mask(SE_USB_OTG_ATX_INT_N);
-		start_int_mask(SE_USB_OTG_TIMER_INT);
-		start_int_mask(SE_USB_I2C_INT);
-		start_int_mask(SE_USB_INT);
-		start_int_mask(SE_USB_NEED_CLK_INT);
-		start_int_mask(SE_USB_AHB_NEED_CLK_INT);
-	}
-}
-
 static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd = 0;
@@ -355,7 +278,7 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 	usb_otg_clk = clk_get(&pdev->dev, "ck_usb_otg");
 	if (IS_ERR(usb_otg_clk)) {
 		dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
-		ret = PTR_ERR(usb_dev_clk);
+		ret = PTR_ERR(usb_otg_clk);
 		goto out6;
 	}
 
@@ -376,9 +299,6 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 		goto out8;
 	}
 
-	/* Set all USB bits in the Start Enable register */
-	nxp_set_usb_bits();
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "Failed to get MEM resource\n");
@@ -413,7 +333,6 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 
 	nxp_stop_hc();
 out8:
-	nxp_unset_usb_bits();
 	usb_put_hcd(hcd);
 out7:
 	clk_disable(usb_otg_clk);
@@ -441,7 +360,6 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
 	nxp_stop_hc();
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 	usb_put_hcd(hcd);
-	nxp_unset_usb_bits();
 	clk_disable(usb_pll_clk);
 	clk_put(usb_pll_clk);
 	clk_disable(usb_dev_clk);
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index e7d75d29598..4531d03503c 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -24,7 +24,7 @@
 #include <asm/io.h>
 #include <asm/mach-types.h>
 
-#include <plat/mux.h>
+#include <mach/mux.h>
 #include <plat/fpga.h>
 
 #include <mach/hardware.h>
@@ -403,8 +403,6 @@ err0:
 static inline void
 usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
 {
-	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
-
 	usb_remove_hcd(hcd);
 	if (!IS_ERR_OR_NULL(hcd->phy)) {
 		(void) otg_set_host(hcd->phy->otg, 0);
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 670c7059c9a..e24ec9f7916 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -83,10 +83,14 @@ static int __devinit ohci_platform_probe(struct platform_device *dev)
 {
 	struct usb_hcd *hcd;
 	struct resource *res_mem;
+	struct usb_ohci_pdata *pdata = dev->dev.platform_data;
 	int irq;
 	int err = -ENOMEM;
 
-	BUG_ON(!dev->dev.platform_data);
+	if (!pdata) {
+		WARN_ON(1);
+		return -ENODEV;
+	}
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -103,10 +107,18 @@ static int __devinit ohci_platform_probe(struct platform_device *dev)
 		return -ENXIO;
 	}
 
+	if (pdata->power_on) {
+		err = pdata->power_on(dev);
+		if (err < 0)
+			return err;
+	}
+
 	hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
 			dev_name(&dev->dev));
-	if (!hcd)
-		return -ENOMEM;
+	if (!hcd) {
+		err = -ENOMEM;
+		goto err_power;
+	}
 
 	hcd->rsrc_start = res_mem->start;
 	hcd->rsrc_len = resource_size(res_mem);
@@ -118,8 +130,10 @@ static int __devinit ohci_platform_probe(struct platform_device *dev)
 	}
 
 	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs)
+	if (!hcd->regs) {
+		err = -ENOMEM;
 		goto err_release_region;
+	}
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err)
 		goto err_iounmap;
@@ -134,12 +148,17 @@ err_release_region:
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err_put_hcd:
 	usb_put_hcd(hcd);
+err_power:
+	if (pdata->power_off)
+		pdata->power_off(dev);
+
 	return err;
 }
 
 static int __devexit ohci_platform_remove(struct platform_device *dev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
+	struct usb_ohci_pdata *pdata = dev->dev.platform_data;
 
 	usb_remove_hcd(hcd);
 	iounmap(hcd->regs);
@@ -147,6 +166,9 @@ static int __devexit ohci_platform_remove(struct platform_device *dev)
 	usb_put_hcd(hcd);
 	platform_set_drvdata(dev, NULL);
 
+	if (pdata->power_off)
+		pdata->power_off(dev);
+
 	return 0;
 }
 
@@ -154,12 +176,28 @@ static int __devexit ohci_platform_remove(struct platform_device *dev)
 
 static int ohci_platform_suspend(struct device *dev)
 {
+	struct usb_ohci_pdata *pdata = dev->platform_data;
+	struct platform_device *pdev =
+		container_of(dev, struct platform_device, dev);
+
+	if (pdata->power_suspend)
+		pdata->power_suspend(pdev);
+
 	return 0;
 }
 
 static int ohci_platform_resume(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct usb_ohci_pdata *pdata = dev->platform_data;
+	struct platform_device *pdev =
+		container_of(dev, struct platform_device, dev);
+
+	if (pdata->power_on) {
+		int err = pdata->power_on(pdev);
+		if (err < 0)
+			return err;
+	}
 
 	ohci_finish_controller_resume(hcd);
 	return 0;
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index e1a3cc6d28d..2bf11440b01 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -23,9 +23,11 @@
 #include <linux/signal.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 #include <mach/hardware.h>
-#include <mach/ohci.h>
-#include <mach/pxa3xx-u2d.h>
+#include <linux/platform_data/usb-ohci-pxa27x.h>
+#include <linux/platform_data/usb-pxa3xx-ulpi.h>
 
 /*
  * UHC: USB Host Controller (OHCI-like) register definitions
@@ -272,6 +274,67 @@ static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev)
 	clk_disable_unprepare(ohci->clk);
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id pxa_ohci_dt_ids[] = {
+	{ .compatible = "marvell,pxa-ohci" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, pxa_ohci_dt_ids);
+
+static u64 pxa_ohci_dma_mask = DMA_BIT_MASK(32);
+
+static int __devinit ohci_pxa_of_init(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct pxaohci_platform_data *pdata;
+	u32 tmp;
+
+	if (!np)
+		return 0;
+
+	/* Right now device-tree probed devices don't get dma_mask set.
+	 * Since shared usb code relies on it, set it here for now.
+	 * Once we have dma capability bindings this can go away.
+	 */
+	if (!pdev->dev.dma_mask)
+		pdev->dev.dma_mask = &pxa_ohci_dma_mask;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	if (of_get_property(np, "marvell,enable-port1", NULL))
+		pdata->flags |= ENABLE_PORT1;
+	if (of_get_property(np, "marvell,enable-port2", NULL))
+		pdata->flags |= ENABLE_PORT2;
+	if (of_get_property(np, "marvell,enable-port3", NULL))
+		pdata->flags |= ENABLE_PORT3;
+	if (of_get_property(np, "marvell,port-sense-low", NULL))
+		pdata->flags |= POWER_SENSE_LOW;
+	if (of_get_property(np, "marvell,power-control-low", NULL))
+		pdata->flags |= POWER_CONTROL_LOW;
+	if (of_get_property(np, "marvell,no-oc-protection", NULL))
+		pdata->flags |= NO_OC_PROTECTION;
+	if (of_get_property(np, "marvell,oc-mode-perport", NULL))
+		pdata->flags |= OC_MODE_PERPORT;
+	if (!of_property_read_u32(np, "marvell,power-on-delay", &tmp))
+		pdata->power_on_delay = tmp;
+	if (!of_property_read_u32(np, "marvell,port-mode", &tmp))
+		pdata->port_mode = tmp;
+	if (!of_property_read_u32(np, "marvell,power-budget", &tmp))
+		pdata->power_budget = tmp;
+
+	pdev->dev.platform_data = pdata;
+
+	return 0;
+}
+#else
+static int __devinit ohci_pxa_of_init(struct platform_device *pdev)
+{
+	return 0;
+}
+#endif
 
 /*-------------------------------------------------------------------------*/
 
@@ -297,6 +360,10 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
 	struct resource *r;
 	struct clk *usb_clk;
 
+	retval = ohci_pxa_of_init(pdev);
+	if (retval)
+		return retval;
+
 	inf = pdev->dev.platform_data;
 
 	if (!inf)
@@ -544,6 +611,7 @@ static struct platform_driver ohci_hcd_pxa27x_driver = {
 	.driver		= {
 		.name	= "pxa27x-ohci",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(pxa_ohci_dt_ids),
 #ifdef CONFIG_PM
 		.pm	= &ohci_hcd_pxa27x_pm_ops,
 #endif
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 664c869eb09..0d2309ca471 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -21,7 +21,7 @@
 
 #include <linux/platform_device.h>
 #include <linux/clk.h>
-#include <plat/usb-control.h>
+#include <linux/platform_data/usb-ohci-s3c2410.h>
 
 #define valid_port(idx) ((idx) == 1 || (idx) == 2)
 
diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c
index 41e378f17c6..84201cd1a47 100644
--- a/drivers/usb/host/ohci-xls.c
+++ b/drivers/usb/host/ohci-xls.c
@@ -56,7 +56,7 @@ static int ohci_xls_probe_internal(const struct hc_driver *driver,
 		goto err3;
 	}
 
-	retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
+	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval != 0)
 		goto err4;
 	return retval;
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index df0828cb2aa..966d1484ee7 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -75,7 +75,9 @@
 #define	NB_PIF0_PWRDOWN_1	0x01100013
 
 #define USB_INTEL_XUSB2PR      0xD0
+#define USB_INTEL_USB2PRM      0xD4
 #define USB_INTEL_USB3_PSSEN   0xD8
+#define USB_INTEL_USB3PRM      0xDC
 
 static struct amd_chipset_info {
 	struct pci_dev	*nb_dev;
@@ -772,10 +774,18 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev)
 		return;
 	}
 
-	ports_available = 0xffffffff;
+	/* Read USB3PRM, the USB 3.0 Port Routing Mask Register
+	 * Indicate the ports that can be changed from OS.
+	 */
+	pci_read_config_dword(xhci_pdev, USB_INTEL_USB3PRM,
+			&ports_available);
+
+	dev_dbg(&xhci_pdev->dev, "Configurable ports to enable SuperSpeed: 0x%x\n",
+			ports_available);
+
 	/* Write USB3_PSSEN, the USB 3.0 Port SuperSpeed Enable
-	 * Register, to turn on SuperSpeed terminations for all
-	 * available ports.
+	 * Register, to turn on SuperSpeed terminations for the
+	 * switchable ports.
 	 */
 	pci_write_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN,
 			cpu_to_le32(ports_available));
@@ -785,7 +795,16 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev)
 	dev_dbg(&xhci_pdev->dev, "USB 3.0 ports that are now enabled "
 			"under xHCI: 0x%x\n", ports_available);
 
-	ports_available = 0xffffffff;
+	/* Read XUSB2PRM, xHCI USB 2.0 Port Routing Mask Register
+	 * Indicate the USB 2.0 ports to be controlled by the xHCI host.
+	 */
+
+	pci_read_config_dword(xhci_pdev, USB_INTEL_USB2PRM,
+			&ports_available);
+
+	dev_dbg(&xhci_pdev->dev, "Configurable USB 2.0 ports to hand over to xCHI: 0x%x\n",
+			ports_available);
+
 	/* Write XUSB2PR, the xHC USB 2.0 Port Routing Register, to
 	 * switch the USB 2.0 power and data lines over to the xHCI
 	 * host.
@@ -800,6 +819,13 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev)
 }
 EXPORT_SYMBOL_GPL(usb_enable_xhci_ports);
 
+void usb_disable_xhci_ports(struct pci_dev *xhci_pdev)
+{
+	pci_write_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN, 0x0);
+	pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, 0x0);
+}
+EXPORT_SYMBOL_GPL(usb_disable_xhci_ports);
+
 /**
  * PCI Quirks for xHCI.
  *
@@ -815,12 +841,12 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev)
 	void __iomem *op_reg_base;
 	u32 val;
 	int timeout;
+	int len = pci_resource_len(pdev, 0);
 
 	if (!mmio_resource_enabled(pdev, 0))
 		return;
 
-	base = ioremap_nocache(pci_resource_start(pdev, 0),
-				pci_resource_len(pdev, 0));
+	base = ioremap_nocache(pci_resource_start(pdev, 0), len);
 	if (base == NULL)
 		return;
 
@@ -830,9 +856,17 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev)
 	 */
 	ext_cap_offset = xhci_find_next_cap_offset(base, XHCI_HCC_PARAMS_OFFSET);
 	do {
+		if ((ext_cap_offset + sizeof(val)) > len) {
+			/* We're reading garbage from the controller */
+			dev_warn(&pdev->dev,
+				 "xHCI controller failing to respond");
+			return;
+		}
+
 		if (!ext_cap_offset)
 			/* We've reached the end of the extended capabilities */
 			goto hc_init;
+
 		val = readl(base + ext_cap_offset);
 		if (XHCI_EXT_CAPS_ID(val) == XHCI_EXT_CAPS_LEGACY)
 			break;
@@ -863,9 +897,10 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev)
 	/* Disable any BIOS SMIs and clear all SMI events*/
 	writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET);
 
+hc_init:
 	if (usb_is_intel_switchable_xhci(pdev))
 		usb_enable_xhci_ports(pdev);
-hc_init:
+
 	op_reg_base = base + XHCI_HC_LENGTH(readl(base));
 
 	/* Wait for the host controller to be ready before writing any
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index b1002a8ef96..7f69a39163c 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -10,10 +10,12 @@ void usb_amd_quirk_pll_disable(void);
 void usb_amd_quirk_pll_enable(void);
 bool usb_is_intel_switchable_xhci(struct pci_dev *pdev);
 void usb_enable_xhci_ports(struct pci_dev *xhci_pdev);
+void usb_disable_xhci_ports(struct pci_dev *xhci_pdev);
 #else
 static inline void usb_amd_quirk_pll_disable(void) {}
 static inline void usb_amd_quirk_pll_enable(void) {}
 static inline void usb_amd_dev_put(void) {}
+static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {}
 #endif  /* CONFIG_PCI */
 
 #endif  /*  __LINUX_USB_PCI_QUIRKS_H  */
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 4c634eb5635..fcc09e5ec0a 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -2029,15 +2029,14 @@ static int r8a66597_get_frame(struct usb_hcd *hcd)
 static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
 {
 	int chix;
+	struct usb_device *childdev;
 
 	if (udev->state == USB_STATE_CONFIGURED &&
 	    udev->parent && udev->parent->devnum > 1 &&
 	    udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
 		map[udev->devnum/32] |= (1 << (udev->devnum % 32));
 
-	for (chix = 0; chix < udev->maxchild; chix++) {
-		struct usb_device *childdev = udev->children[chix];
-
+	usb_hub_for_each_child(udev, chix, childdev) {
 		if (childdev)
 			collect_usb_address_map(childdev, map);
 	}
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 91ce1c02e61..619b05f42d4 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -156,7 +156,7 @@ static void setup_packet(
 	writeb(SL_SETUP /* | ep->epnum */, data_reg);
 	writeb(usb_pipedevice(urb->pipe), data_reg);
 
-	/* always OUT/data0 */ ;
+	/* always OUT/data0 */
 	sl811_write(sl811, bank + SL11H_HOSTCTLREG,
 			control | SL11H_HCTLMASK_OUT);
 	ep->length = 0;
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index e4db350602b..4b9e9aba266 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -846,6 +846,11 @@ static const char hcd_name[] = "uhci_hcd";
 #define PLATFORM_DRIVER		uhci_grlib_driver
 #endif
 
+#ifdef CONFIG_USB_UHCI_PLATFORM
+#include "uhci-platform.c"
+#define PLATFORM_DRIVER		uhci_platform_driver
+#endif
+
 #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER)
 #error "missing bus glue for uhci-hcd"
 #endif
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
new file mode 100644
index 00000000000..e4780491df4
--- /dev/null
+++ b/drivers/usb/host/uhci-platform.c
@@ -0,0 +1,157 @@
+/*
+ * Generic UHCI HCD (Host Controller Driver) for Platform Devices
+ *
+ * Copyright (c) 2011 Tony Prisk <linux@prisktech.co.nz>
+ *
+ * This file is based on uhci-grlib.c
+ * (C) Copyright 2004-2007 Alan Stern, stern@rowland.harvard.edu
+ */
+
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+static int uhci_platform_init(struct usb_hcd *hcd)
+{
+	struct uhci_hcd *uhci = hcd_to_uhci(hcd);
+
+	uhci->rh_numports = uhci_count_ports(hcd);
+
+	/* Set up pointers to to generic functions */
+	uhci->reset_hc = uhci_generic_reset_hc;
+	uhci->check_and_reset_hc = uhci_generic_check_and_reset_hc;
+
+	/* No special actions need to be taken for the functions below */
+	uhci->configure_hc = NULL;
+	uhci->resume_detect_interrupts_are_broken = NULL;
+	uhci->global_suspend_mode_is_broken = NULL;
+
+	/* Reset if the controller isn't already safely quiescent. */
+	check_and_reset_hc(uhci);
+	return 0;
+}
+
+static const struct hc_driver uhci_platform_hc_driver = {
+	.description =		hcd_name,
+	.product_desc =		"Generic UHCI Host Controller",
+	.hcd_priv_size =	sizeof(struct uhci_hcd),
+
+	/* Generic hardware linkage */
+	.irq =			uhci_irq,
+	.flags =		HCD_MEMORY | HCD_USB11,
+
+	/* Basic lifecycle operations */
+	.reset =		uhci_platform_init,
+	.start =		uhci_start,
+#ifdef CONFIG_PM
+	.pci_suspend =		NULL,
+	.pci_resume =		NULL,
+	.bus_suspend =		uhci_rh_suspend,
+	.bus_resume =		uhci_rh_resume,
+#endif
+	.stop =			uhci_stop,
+
+	.urb_enqueue =		uhci_urb_enqueue,
+	.urb_dequeue =		uhci_urb_dequeue,
+
+	.endpoint_disable =	uhci_hcd_endpoint_disable,
+	.get_frame_number =	uhci_hcd_get_frame_number,
+
+	.hub_status_data =	uhci_hub_status_data,
+	.hub_control =		uhci_hub_control,
+};
+
+
+static int __devinit uhci_hcd_platform_probe(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd;
+	struct uhci_hcd	*uhci;
+	struct resource *res;
+	int ret;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev,
+			pdev->name);
+	if (!hcd)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		pr_err("%s: request_mem_region failed\n", __func__);
+		ret = -EBUSY;
+		goto err_rmr;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		pr_err("%s: ioremap failed\n", __func__);
+		ret = -ENOMEM;
+		goto err_irq;
+	}
+	uhci = hcd_to_uhci(hcd);
+
+	uhci->regs = hcd->regs;
+
+	ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED |
+								IRQF_SHARED);
+	if (ret)
+		goto err_uhci;
+
+	return 0;
+
+err_uhci:
+	iounmap(hcd->regs);
+err_irq:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err_rmr:
+	usb_put_hcd(hcd);
+
+	return ret;
+}
+
+static int uhci_hcd_platform_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_remove_hcd(hcd);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+/* Make sure the controller is quiescent and that we're not using it
+ * any more.  This is mainly for the benefit of programs which, like kexec,
+ * expect the hardware to be idle: not doing DMA or generating IRQs.
+ *
+ * This routine may be called in a damaged or failing kernel.  Hence we
+ * do not acquire the spinlock before shutting down the controller.
+ */
+static void uhci_hcd_platform_shutdown(struct platform_device *op)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(&op->dev);
+
+	uhci_hc_died(hcd_to_uhci(hcd));
+}
+
+static const struct of_device_id platform_uhci_ids[] = {
+	{ .compatible = "platform-uhci", },
+	{}
+};
+
+static struct platform_driver uhci_platform_driver = {
+	.probe		= uhci_hcd_platform_probe,
+	.remove		= uhci_hcd_platform_remove,
+	.shutdown	= uhci_hcd_platform_shutdown,
+	.driver = {
+		.name = "platform-uhci",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(platform_uhci_ids),
+	},
+};
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index 1e141f755b2..c3a647816af 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -238,16 +238,16 @@ static struct hc_driver whc_hc_driver = {
 
 static int whc_probe(struct umc_dev *umc)
 {
-	int ret = -ENOMEM;
+	int ret;
 	struct usb_hcd *usb_hcd;
-	struct wusbhc *wusbhc = NULL;
-	struct whc *whc = NULL;
+	struct wusbhc *wusbhc;
+	struct whc *whc;
 	struct device *dev = &umc->dev;
 
 	usb_hcd = usb_create_hcd(&whc_hc_driver, dev, "whci");
 	if (usb_hcd == NULL) {
 		dev_err(dev, "unable to create hcd\n");
-		goto error;
+		return -ENOMEM;
 	}
 
 	usb_hcd->wireless = 1;
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index 76083ae9213..dc31c425ce0 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -436,7 +436,7 @@ static int qset_add_urb_sg(struct whc *whc, struct whc_qset *qset, struct urb *u
 	int i;
 	int ntds = 0;
 	struct whc_std *std = NULL;
-	struct whc_page_list_entry *entry;
+	struct whc_page_list_entry *new_pl_virt;
 	dma_addr_t prev_end = 0;
 	size_t pl_len;
 	int p = 0;
@@ -508,12 +508,15 @@ static int qset_add_urb_sg(struct whc *whc, struct whc_qset *qset, struct urb *u
 
 			pl_len = std->num_pointers * sizeof(struct whc_page_list_entry);
 
-			std->pl_virt = krealloc(std->pl_virt, pl_len, mem_flags);
-			if (std->pl_virt == NULL) {
+			new_pl_virt = krealloc(std->pl_virt, pl_len, mem_flags);
+			if (new_pl_virt == NULL) {
+				kfree(std->pl_virt);
+				std->pl_virt = NULL;
 				return -ENOMEM;
 			}
+			std->pl_virt = new_pl_virt;
 
-			for (;p < std->num_pointers; p++, entry++) {
+			for (;p < std->num_pointers; p++) {
 				std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr);
 				dma_addr = (dma_addr + WHCI_PAGE_SIZE) & ~(WHCI_PAGE_SIZE-1);
 			}
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 74bfc868b7a..aa90ad4d4fd 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -29,7 +29,7 @@
 #define	PORT_RWC_BITS	(PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \
 			 PORT_RC | PORT_PLC | PORT_PE)
 
-/* usb 1.1 root hub device descriptor */
+/* USB 3.0 BOS descriptor and a capability descriptor, combined */
 static u8 usb_bos_descriptor [] = {
 	USB_DT_BOS_SIZE,		/*  __u8 bLength, 5 bytes */
 	USB_DT_BOS,			/*  __u8 bDescriptorType */
@@ -422,7 +422,7 @@ void xhci_set_link_state(struct xhci_hcd *xhci, __le32 __iomem **port_array,
 	xhci_writel(xhci, temp, port_array[port_id]);
 }
 
-void xhci_set_remote_wake_mask(struct xhci_hcd *xhci,
+static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci,
 		__le32 __iomem **port_array, int port_id, u16 wake_mask)
 {
 	u32 temp;
@@ -493,11 +493,48 @@ static void xhci_hub_report_link_state(u32 *status, u32 status_reg)
 		 * when this bit is set.
 		 */
 		pls |= USB_PORT_STAT_CONNECTION;
+	} else {
+		/*
+		 * If CAS bit isn't set but the Port is already at
+		 * Compliance Mode, fake a connection so the USB core
+		 * notices the Compliance state and resets the port.
+		 * This resolves an issue generated by the SN65LVPE502CP
+		 * in which sometimes the port enters compliance mode
+		 * caused by a delay on the host-device negotiation.
+		 */
+		if (pls == USB_SS_PORT_LS_COMP_MOD)
+			pls |= USB_PORT_STAT_CONNECTION;
 	}
+
 	/* update status field */
 	*status |= pls;
 }
 
+/*
+ * Function for Compliance Mode Quirk.
+ *
+ * This Function verifies if all xhc USB3 ports have entered U0, if so,
+ * the compliance mode timer is deleted. A port won't enter
+ * compliance mode if it has previously entered U0.
+ */
+void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, u16 wIndex)
+{
+	u32 all_ports_seen_u0 = ((1 << xhci->num_usb3_ports)-1);
+	bool port_in_u0 = ((status & PORT_PLS_MASK) == XDEV_U0);
+
+	if (!(xhci->quirks & XHCI_COMP_MODE_QUIRK))
+		return;
+
+	if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) {
+		xhci->port_status_u0 |= 1 << wIndex;
+		if (xhci->port_status_u0 == all_ports_seen_u0) {
+			del_timer_sync(&xhci->comp_mode_recovery_timer);
+			xhci_dbg(xhci, "All USB3 ports have entered U0 already!\n");
+			xhci_dbg(xhci, "Compliance Mode Recovery Timer Deleted.\n");
+		}
+	}
+}
+
 int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		u16 wIndex, char *buf, u16 wLength)
 {
@@ -651,6 +688,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		/* Update Port Link State for super speed ports*/
 		if (hcd->speed == HCD_USB3) {
 			xhci_hub_report_link_state(&status, temp);
+			/*
+			 * Verify if all USB3 Ports Have entered U0 already.
+			 * Delete Compliance Mode Timer if so.
+			 */
+			xhci_del_comp_mod_timer(xhci, temp, wIndex);
 		}
 		if (bus_state->port_c_suspend & (1 << wIndex))
 			status |= 1 << USB_PORT_FEAT_C_SUSPEND;
@@ -766,6 +808,12 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 			temp = xhci_readl(xhci, port_array[wIndex]);
 			xhci_dbg(xhci, "set port power, actual port %d status  = 0x%x\n", wIndex, temp);
+
+			temp = usb_acpi_power_manageable(hcd->self.root_hub,
+					wIndex);
+			if (temp)
+				usb_acpi_set_power_state(hcd->self.root_hub,
+						wIndex, true);
 			break;
 		case USB_PORT_FEAT_RESET:
 			temp = (temp | PORT_RESET);
@@ -865,6 +913,16 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			xhci_disable_port(hcd, xhci, wIndex,
 					port_array[wIndex], temp);
 			break;
+		case USB_PORT_FEAT_POWER:
+			xhci_writel(xhci, temp & ~PORT_POWER,
+				port_array[wIndex]);
+
+			temp = usb_acpi_power_manageable(hcd->self.root_hub,
+					wIndex);
+			if (temp)
+				usb_acpi_set_power_state(hcd->self.root_hub,
+						wIndex, false);
+			break;
 		default:
 			goto error;
 		}
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 77689bd64ca..487bc083dea 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1772,6 +1772,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 {
 	struct pci_dev	*pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
 	struct dev_info	*dev_info, *next;
+	struct xhci_cd  *cur_cd, *next_cd;
 	unsigned long	flags;
 	int size;
 	int i, j, num_ports;
@@ -1795,6 +1796,11 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 		xhci_ring_free(xhci, xhci->cmd_ring);
 	xhci->cmd_ring = NULL;
 	xhci_dbg(xhci, "Freed command ring\n");
+	list_for_each_entry_safe(cur_cd, next_cd,
+			&xhci->cancel_cmd_list, cancel_cmd_list) {
+		list_del(&cur_cd->cancel_cmd_list);
+		kfree(cur_cd);
+	}
 
 	for (i = 1; i < MAX_HC_SLOTS; ++i)
 		xhci_free_virt_device(xhci, i);
@@ -2340,6 +2346,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, flags);
 	if (!xhci->cmd_ring)
 		goto fail;
+	INIT_LIST_HEAD(&xhci->cancel_cmd_list);
 	xhci_dbg(xhci, "Allocated command ring at %p\n", xhci->cmd_ring);
 	xhci_dbg(xhci, "First segment DMA is 0x%llx\n",
 			(unsigned long long)xhci->cmd_ring->first_seg->dma);
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 18b231b0c5d..8345d7c2306 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -94,11 +94,22 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		xhci->quirks |= XHCI_EP_LIMIT_QUIRK;
 		xhci->limit_active_eps = 64;
 		xhci->quirks |= XHCI_SW_BW_CHECKING;
+		/*
+		 * PPT desktop boards DH77EB and DH77DF will power back on after
+		 * a few seconds of being shutdown.  The fix for this is to
+		 * switch the ports from xHCI to EHCI on shutdown.  We can't use
+		 * DMI information to find those particular boards (since each
+		 * vendor will change the board name), so we have to key off all
+		 * PPT chipsets.
+		 */
+		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
+		xhci->quirks |= XHCI_AVOID_BEI;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
 			pdev->device == PCI_DEVICE_ID_ASROCK_P67) {
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
 		xhci_dbg(xhci, "QUIRK: Resetting on resume\n");
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_VIA)
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 689bc18b051..df90fe51b4a 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -118,7 +118,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		goto put_hcd;
 	}
 
-	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
 	if (!hcd->regs) {
 		dev_dbg(&pdev->dev, "error mapping memory\n");
 		ret = -EFAULT;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 8275645889d..c6ebb176dc4 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -145,29 +145,37 @@ static void next_trb(struct xhci_hcd *xhci,
  */
 static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring)
 {
-	union xhci_trb *next;
 	unsigned long long addr;
 
 	ring->deq_updates++;
 
-	/* If this is not event ring, there is one more usable TRB */
+	/*
+	 * If this is not event ring, and the dequeue pointer
+	 * is not on a link TRB, there is one more usable TRB
+	 */
 	if (ring->type != TYPE_EVENT &&
 			!last_trb(xhci, ring, ring->deq_seg, ring->dequeue))
 		ring->num_trbs_free++;
-	next = ++(ring->dequeue);
 
-	/* Update the dequeue pointer further if that was a link TRB or we're at
-	 * the end of an event ring segment (which doesn't have link TRBS)
-	 */
-	while (last_trb(xhci, ring, ring->deq_seg, next)) {
-		if (ring->type == TYPE_EVENT &&	last_trb_on_last_seg(xhci,
-				ring, ring->deq_seg, next)) {
-			ring->cycle_state = (ring->cycle_state ? 0 : 1);
+	do {
+		/*
+		 * Update the dequeue pointer further if that was a link TRB or
+		 * we're at the end of an event ring segment (which doesn't have
+		 * link TRBS)
+		 */
+		if (last_trb(xhci, ring, ring->deq_seg, ring->dequeue)) {
+			if (ring->type == TYPE_EVENT &&
+					last_trb_on_last_seg(xhci, ring,
+						ring->deq_seg, ring->dequeue)) {
+				ring->cycle_state = (ring->cycle_state ? 0 : 1);
+			}
+			ring->deq_seg = ring->deq_seg->next;
+			ring->dequeue = ring->deq_seg->trbs;
+		} else {
+			ring->dequeue++;
 		}
-		ring->deq_seg = ring->deq_seg->next;
-		ring->dequeue = ring->deq_seg->trbs;
-		next = ring->dequeue;
-	}
+	} while (last_trb(xhci, ring, ring->deq_seg, ring->dequeue));
+
 	addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
 }
 
@@ -272,12 +280,123 @@ static inline int room_on_ring(struct xhci_hcd *xhci, struct xhci_ring *ring,
 /* Ring the host controller doorbell after placing a command on the ring */
 void xhci_ring_cmd_db(struct xhci_hcd *xhci)
 {
+	if (!(xhci->cmd_ring_state & CMD_RING_STATE_RUNNING))
+		return;
+
 	xhci_dbg(xhci, "// Ding dong!\n");
 	xhci_writel(xhci, DB_VALUE_HOST, &xhci->dba->doorbell[0]);
 	/* Flush PCI posted writes */
 	xhci_readl(xhci, &xhci->dba->doorbell[0]);
 }
 
+static int xhci_abort_cmd_ring(struct xhci_hcd *xhci)
+{
+	u64 temp_64;
+	int ret;
+
+	xhci_dbg(xhci, "Abort command ring\n");
+
+	if (!(xhci->cmd_ring_state & CMD_RING_STATE_RUNNING)) {
+		xhci_dbg(xhci, "The command ring isn't running, "
+				"Have the command ring been stopped?\n");
+		return 0;
+	}
+
+	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
+	if (!(temp_64 & CMD_RING_RUNNING)) {
+		xhci_dbg(xhci, "Command ring had been stopped\n");
+		return 0;
+	}
+	xhci->cmd_ring_state = CMD_RING_STATE_ABORTED;
+	xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
+			&xhci->op_regs->cmd_ring);
+
+	/* Section 4.6.1.2 of xHCI 1.0 spec says software should
+	 * time the completion od all xHCI commands, including
+	 * the Command Abort operation. If software doesn't see
+	 * CRR negated in a timely manner (e.g. longer than 5
+	 * seconds), then it should assume that the there are
+	 * larger problems with the xHC and assert HCRST.
+	 */
+	ret = handshake(xhci, &xhci->op_regs->cmd_ring,
+			CMD_RING_RUNNING, 0, 5 * 1000 * 1000);
+	if (ret < 0) {
+		xhci_err(xhci, "Stopped the command ring failed, "
+				"maybe the host is dead\n");
+		xhci->xhc_state |= XHCI_STATE_DYING;
+		xhci_quiesce(xhci);
+		xhci_halt(xhci);
+		return -ESHUTDOWN;
+	}
+
+	return 0;
+}
+
+static int xhci_queue_cd(struct xhci_hcd *xhci,
+		struct xhci_command *command,
+		union xhci_trb *cmd_trb)
+{
+	struct xhci_cd *cd;
+	cd = kzalloc(sizeof(struct xhci_cd), GFP_ATOMIC);
+	if (!cd)
+		return -ENOMEM;
+	INIT_LIST_HEAD(&cd->cancel_cmd_list);
+
+	cd->command = command;
+	cd->cmd_trb = cmd_trb;
+	list_add_tail(&cd->cancel_cmd_list, &xhci->cancel_cmd_list);
+
+	return 0;
+}
+
+/*
+ * Cancel the command which has issue.
+ *
+ * Some commands may hang due to waiting for acknowledgement from
+ * usb device. It is outside of the xHC's ability to control and
+ * will cause the command ring is blocked. When it occurs software
+ * should intervene to recover the command ring.
+ * See Section 4.6.1.1 and 4.6.1.2
+ */
+int xhci_cancel_cmd(struct xhci_hcd *xhci, struct xhci_command *command,
+		union xhci_trb *cmd_trb)
+{
+	int retval = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&xhci->lock, flags);
+
+	if (xhci->xhc_state & XHCI_STATE_DYING) {
+		xhci_warn(xhci, "Abort the command ring,"
+				" but the xHCI is dead.\n");
+		retval = -ESHUTDOWN;
+		goto fail;
+	}
+
+	/* queue the cmd desriptor to cancel_cmd_list */
+	retval = xhci_queue_cd(xhci, command, cmd_trb);
+	if (retval) {
+		xhci_warn(xhci, "Queuing command descriptor failed.\n");
+		goto fail;
+	}
+
+	/* abort command ring */
+	retval = xhci_abort_cmd_ring(xhci);
+	if (retval) {
+		xhci_err(xhci, "Abort command ring failed\n");
+		if (unlikely(retval == -ESHUTDOWN)) {
+			spin_unlock_irqrestore(&xhci->lock, flags);
+			usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
+			xhci_dbg(xhci, "xHCI host controller is dead.\n");
+			return retval;
+		}
+	}
+
+fail:
+	spin_unlock_irqrestore(&xhci->lock, flags);
+	return retval;
+}
+
 void xhci_ring_ep_doorbell(struct xhci_hcd *xhci,
 		unsigned int slot_id,
 		unsigned int ep_index,
@@ -1051,6 +1170,20 @@ static void handle_reset_ep_completion(struct xhci_hcd *xhci,
 	}
 }
 
+/* Complete the command and detele it from the devcie's command queue.
+ */
+static void xhci_complete_cmd_in_cmd_wait_list(struct xhci_hcd *xhci,
+		struct xhci_command *command, u32 status)
+{
+	command->status = status;
+	list_del(&command->cmd_list);
+	if (command->completion)
+		complete(command->completion);
+	else
+		xhci_free_command(xhci, command);
+}
+
+
 /* Check to see if a command in the device's command queue matches this one.
  * Signal the completion or free the command, and return 1.  Return 0 if the
  * completed command isn't at the head of the command list.
@@ -1069,15 +1202,144 @@ static int handle_cmd_in_cmd_wait_list(struct xhci_hcd *xhci,
 	if (xhci->cmd_ring->dequeue != command->command_trb)
 		return 0;
 
-	command->status = GET_COMP_CODE(le32_to_cpu(event->status));
-	list_del(&command->cmd_list);
-	if (command->completion)
-		complete(command->completion);
-	else
-		xhci_free_command(xhci, command);
+	xhci_complete_cmd_in_cmd_wait_list(xhci, command,
+			GET_COMP_CODE(le32_to_cpu(event->status)));
 	return 1;
 }
 
+/*
+ * Finding the command trb need to be cancelled and modifying it to
+ * NO OP command. And if the command is in device's command wait
+ * list, finishing and freeing it.
+ *
+ * If we can't find the command trb, we think it had already been
+ * executed.
+ */
+static void xhci_cmd_to_noop(struct xhci_hcd *xhci, struct xhci_cd *cur_cd)
+{
+	struct xhci_segment *cur_seg;
+	union xhci_trb *cmd_trb;
+	u32 cycle_state;
+
+	if (xhci->cmd_ring->dequeue == xhci->cmd_ring->enqueue)
+		return;
+
+	/* find the current segment of command ring */
+	cur_seg = find_trb_seg(xhci->cmd_ring->first_seg,
+			xhci->cmd_ring->dequeue, &cycle_state);
+
+	/* find the command trb matched by cd from command ring */
+	for (cmd_trb = xhci->cmd_ring->dequeue;
+			cmd_trb != xhci->cmd_ring->enqueue;
+			next_trb(xhci, xhci->cmd_ring, &cur_seg, &cmd_trb)) {
+		/* If the trb is link trb, continue */
+		if (TRB_TYPE_LINK_LE32(cmd_trb->generic.field[3]))
+			continue;
+
+		if (cur_cd->cmd_trb == cmd_trb) {
+
+			/* If the command in device's command list, we should
+			 * finish it and free the command structure.
+			 */
+			if (cur_cd->command)
+				xhci_complete_cmd_in_cmd_wait_list(xhci,
+					cur_cd->command, COMP_CMD_STOP);
+
+			/* get cycle state from the origin command trb */
+			cycle_state = le32_to_cpu(cmd_trb->generic.field[3])
+				& TRB_CYCLE;
+
+			/* modify the command trb to NO OP command */
+			cmd_trb->generic.field[0] = 0;
+			cmd_trb->generic.field[1] = 0;
+			cmd_trb->generic.field[2] = 0;
+			cmd_trb->generic.field[3] = cpu_to_le32(
+					TRB_TYPE(TRB_CMD_NOOP) | cycle_state);
+			break;
+		}
+	}
+}
+
+static void xhci_cancel_cmd_in_cd_list(struct xhci_hcd *xhci)
+{
+	struct xhci_cd *cur_cd, *next_cd;
+
+	if (list_empty(&xhci->cancel_cmd_list))
+		return;
+
+	list_for_each_entry_safe(cur_cd, next_cd,
+			&xhci->cancel_cmd_list, cancel_cmd_list) {
+		xhci_cmd_to_noop(xhci, cur_cd);
+		list_del(&cur_cd->cancel_cmd_list);
+		kfree(cur_cd);
+	}
+}
+
+/*
+ * traversing the cancel_cmd_list. If the command descriptor according
+ * to cmd_trb is found, the function free it and return 1, otherwise
+ * return 0.
+ */
+static int xhci_search_cmd_trb_in_cd_list(struct xhci_hcd *xhci,
+		union xhci_trb *cmd_trb)
+{
+	struct xhci_cd *cur_cd, *next_cd;
+
+	if (list_empty(&xhci->cancel_cmd_list))
+		return 0;
+
+	list_for_each_entry_safe(cur_cd, next_cd,
+			&xhci->cancel_cmd_list, cancel_cmd_list) {
+		if (cur_cd->cmd_trb == cmd_trb) {
+			if (cur_cd->command)
+				xhci_complete_cmd_in_cmd_wait_list(xhci,
+					cur_cd->command, COMP_CMD_STOP);
+			list_del(&cur_cd->cancel_cmd_list);
+			kfree(cur_cd);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * If the cmd_trb_comp_code is COMP_CMD_ABORT, we just check whether the
+ * trb pointed by the command ring dequeue pointer is the trb we want to
+ * cancel or not. And if the cmd_trb_comp_code is COMP_CMD_STOP, we will
+ * traverse the cancel_cmd_list to trun the all of the commands according
+ * to command descriptor to NO-OP trb.
+ */
+static int handle_stopped_cmd_ring(struct xhci_hcd *xhci,
+		int cmd_trb_comp_code)
+{
+	int cur_trb_is_good = 0;
+
+	/* Searching the cmd trb pointed by the command ring dequeue
+	 * pointer in command descriptor list. If it is found, free it.
+	 */
+	cur_trb_is_good = xhci_search_cmd_trb_in_cd_list(xhci,
+			xhci->cmd_ring->dequeue);
+
+	if (cmd_trb_comp_code == COMP_CMD_ABORT)
+		xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
+	else if (cmd_trb_comp_code == COMP_CMD_STOP) {
+		/* traversing the cancel_cmd_list and canceling
+		 * the command according to command descriptor
+		 */
+		xhci_cancel_cmd_in_cd_list(xhci);
+
+		xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
+		/*
+		 * ring command ring doorbell again to restart the
+		 * command ring
+		 */
+		if (xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue)
+			xhci_ring_cmd_db(xhci);
+	}
+	return cur_trb_is_good;
+}
+
 static void handle_cmd_completion(struct xhci_hcd *xhci,
 		struct xhci_event_cmd *event)
 {
@@ -1103,6 +1365,22 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 		xhci->error_bitmask |= 1 << 5;
 		return;
 	}
+
+	if ((GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_ABORT) ||
+		(GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_STOP)) {
+		/* If the return value is 0, we think the trb pointed by
+		 * command ring dequeue pointer is a good trb. The good
+		 * trb means we don't want to cancel the trb, but it have
+		 * been stopped by host. So we should handle it normally.
+		 * Otherwise, driver should invoke inc_deq() and return.
+		 */
+		if (handle_stopped_cmd_ring(xhci,
+				GET_COMP_CODE(le32_to_cpu(event->status)))) {
+			inc_deq(xhci, xhci->cmd_ring);
+			return;
+		}
+	}
+
 	switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
 		& TRB_TYPE_BITMASK) {
 	case TRB_TYPE(TRB_ENABLE_SLOT):
@@ -1995,6 +2273,8 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
  */
 static int handle_tx_event(struct xhci_hcd *xhci,
 		struct xhci_transfer_event *event)
+	__releases(&xhci->lock)
+	__acquires(&xhci->lock)
 {
 	struct xhci_virt_device *xdev;
 	struct xhci_virt_ep *ep;
@@ -2073,8 +2353,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 		if (xhci->quirks & XHCI_TRUST_TX_LENGTH)
 			trb_comp_code = COMP_SHORT_TX;
 		else
-			xhci_warn(xhci, "WARN Successful completion on short TX: "
-					"needs XHCI_TRUST_TX_LENGTH quirk?\n");
+			xhci_warn_ratelimited(xhci,
+					"WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk?\n");
 	case COMP_SHORT_TX:
 		break;
 	case COMP_STOP:
@@ -2572,7 +2852,7 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring,
 			xhci_err(xhci, "Ring expansion failed\n");
 			return -ENOMEM;
 		}
-	};
+	}
 
 	if (enqueue_is_link_trb(ep_ring)) {
 		struct xhci_ring *ring = ep_ring;
@@ -3392,7 +3672,9 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 			} else {
 				td->last_trb = ep_ring->enqueue;
 				field |= TRB_IOC;
-				if (xhci->hci_version == 0x100) {
+				if (xhci->hci_version == 0x100 &&
+						!(xhci->quirks &
+							XHCI_AVOID_BEI)) {
 					/* Set BEI bit except for the last td */
 					if (i < num_tds - 1)
 						field |= TRB_BEI;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 7648b2d4b26..8d7fcbbe6ad 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/slab.h>
+#include <linux/dmi.h>
 
 #include "xhci.h"
 
@@ -51,7 +52,7 @@ MODULE_PARM_DESC(link_quirk, "Don't clear the chain bit on a link TRB");
  * handshake done).  There are two failure modes:  "usec" have passed (major
  * hardware flakeout), or the register reads as all-ones (hardware removed).
  */
-static int handshake(struct xhci_hcd *xhci, void __iomem *ptr,
+int handshake(struct xhci_hcd *xhci, void __iomem *ptr,
 		      u32 mask, u32 done, int usec)
 {
 	u32	result;
@@ -104,9 +105,10 @@ int xhci_halt(struct xhci_hcd *xhci)
 
 	ret = handshake(xhci, &xhci->op_regs->status,
 			STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC);
-	if (!ret)
+	if (!ret) {
 		xhci->xhc_state |= XHCI_STATE_HALTED;
-	else
+		xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
+	} else
 		xhci_warn(xhci, "Host not halted after %u microseconds.\n",
 				XHCI_MAX_HALT_USEC);
 	return ret;
@@ -166,7 +168,7 @@ int xhci_reset(struct xhci_hcd *xhci)
 	xhci_writel(xhci, command, &xhci->op_regs->command);
 
 	ret = handshake(xhci, &xhci->op_regs->command,
-			CMD_RESET, 0, 250 * 1000);
+			CMD_RESET, 0, 10 * 1000 * 1000);
 	if (ret)
 		return ret;
 
@@ -175,7 +177,8 @@ int xhci_reset(struct xhci_hcd *xhci)
 	 * xHCI cannot write to any doorbells or operational registers other
 	 * than status until the "Controller Not Ready" flag is cleared.
 	 */
-	ret = handshake(xhci, &xhci->op_regs->status, STS_CNR, 0, 250 * 1000);
+	ret = handshake(xhci, &xhci->op_regs->status,
+			STS_CNR, 0, 10 * 1000 * 1000);
 
 	for (i = 0; i < 2; ++i) {
 		xhci->bus_state[i].port_c_suspend = 0;
@@ -397,6 +400,97 @@ static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
 
 #endif
 
+static void compliance_mode_recovery(unsigned long arg)
+{
+	struct xhci_hcd *xhci;
+	struct usb_hcd *hcd;
+	u32 temp;
+	int i;
+
+	xhci = (struct xhci_hcd *)arg;
+
+	for (i = 0; i < xhci->num_usb3_ports; i++) {
+		temp = xhci_readl(xhci, xhci->usb3_ports[i]);
+		if ((temp & PORT_PLS_MASK) == USB_SS_PORT_LS_COMP_MOD) {
+			/*
+			 * Compliance Mode Detected. Letting USB Core
+			 * handle the Warm Reset
+			 */
+			xhci_dbg(xhci, "Compliance Mode Detected->Port %d!\n",
+					i + 1);
+			xhci_dbg(xhci, "Attempting Recovery routine!\n");
+			hcd = xhci->shared_hcd;
+
+			if (hcd->state == HC_STATE_SUSPENDED)
+				usb_hcd_resume_root_hub(hcd);
+
+			usb_hcd_poll_rh_status(hcd);
+		}
+	}
+
+	if (xhci->port_status_u0 != ((1 << xhci->num_usb3_ports)-1))
+		mod_timer(&xhci->comp_mode_recovery_timer,
+			jiffies + msecs_to_jiffies(COMP_MODE_RCVRY_MSECS));
+}
+
+/*
+ * Quirk to work around issue generated by the SN65LVPE502CP USB3.0 re-driver
+ * that causes ports behind that hardware to enter compliance mode sometimes.
+ * The quirk creates a timer that polls every 2 seconds the link state of
+ * each host controller's port and recovers it by issuing a Warm reset
+ * if Compliance mode is detected, otherwise the port will become "dead" (no
+ * device connections or disconnections will be detected anymore). Becasue no
+ * status event is generated when entering compliance mode (per xhci spec),
+ * this quirk is needed on systems that have the failing hardware installed.
+ */
+static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci)
+{
+	xhci->port_status_u0 = 0;
+	init_timer(&xhci->comp_mode_recovery_timer);
+
+	xhci->comp_mode_recovery_timer.data = (unsigned long) xhci;
+	xhci->comp_mode_recovery_timer.function = compliance_mode_recovery;
+	xhci->comp_mode_recovery_timer.expires = jiffies +
+			msecs_to_jiffies(COMP_MODE_RCVRY_MSECS);
+
+	set_timer_slack(&xhci->comp_mode_recovery_timer,
+			msecs_to_jiffies(COMP_MODE_RCVRY_MSECS));
+	add_timer(&xhci->comp_mode_recovery_timer);
+	xhci_dbg(xhci, "Compliance Mode Recovery Timer Initialized.\n");
+}
+
+/*
+ * This function identifies the systems that have installed the SN65LVPE502CP
+ * USB3.0 re-driver and that need the Compliance Mode Quirk.
+ * Systems:
+ * Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820
+ */
+static bool compliance_mode_recovery_timer_quirk_check(void)
+{
+	const char *dmi_product_name, *dmi_sys_vendor;
+
+	dmi_product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
+	dmi_sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+	if (!dmi_product_name || !dmi_sys_vendor)
+		return false;
+
+	if (!(strstr(dmi_sys_vendor, "Hewlett-Packard")))
+		return false;
+
+	if (strstr(dmi_product_name, "Z420") ||
+			strstr(dmi_product_name, "Z620") ||
+			strstr(dmi_product_name, "Z820"))
+		return true;
+
+	return false;
+}
+
+static int xhci_all_ports_seen_u0(struct xhci_hcd *xhci)
+{
+	return (xhci->port_status_u0 == ((1 << xhci->num_usb3_ports)-1));
+}
+
+
 /*
  * Initialize memory for HCD and xHC (one-time init).
  *
@@ -420,6 +514,12 @@ int xhci_init(struct usb_hcd *hcd)
 	retval = xhci_mem_init(xhci, GFP_KERNEL);
 	xhci_dbg(xhci, "Finished xhci_init\n");
 
+	/* Initializing Compliance Mode Recovery Data If Needed */
+	if (compliance_mode_recovery_timer_quirk_check()) {
+		xhci->quirks |= XHCI_COMP_MODE_QUIRK;
+		compliance_mode_recovery_timer_init(xhci);
+	}
+
 	return retval;
 }
 
@@ -484,6 +584,7 @@ static int xhci_run_finished(struct xhci_hcd *xhci)
 		return -ENODEV;
 	}
 	xhci->shared_hcd->state = HC_STATE_RUNNING;
+	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
 
 	if (xhci->quirks & XHCI_NEC_HOST)
 		xhci_ring_cmd_db(xhci);
@@ -628,6 +729,11 @@ void xhci_stop(struct usb_hcd *hcd)
 	del_timer_sync(&xhci->event_ring_timer);
 #endif
 
+	/* Deleting Compliance Mode Recovery Timer */
+	if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) &&
+			(!(xhci_all_ports_seen_u0(xhci))))
+		del_timer_sync(&xhci->comp_mode_recovery_timer);
+
 	if (xhci->quirks & XHCI_AMD_PLL_FIX)
 		usb_amd_dev_put();
 
@@ -658,6 +764,9 @@ void xhci_shutdown(struct usb_hcd *hcd)
 {
 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
 
+	if (xhci->quirks & XHCI_SPURIOUS_REBOOT)
+		usb_disable_xhci_ports(to_pci_dev(hcd->self.controller));
+
 	spin_lock_irq(&xhci->lock);
 	xhci_halt(xhci);
 	spin_unlock_irq(&xhci->lock);
@@ -781,7 +890,7 @@ int xhci_suspend(struct xhci_hcd *xhci)
 	command &= ~CMD_RUN;
 	xhci_writel(xhci, command, &xhci->op_regs->command);
 	if (handshake(xhci, &xhci->op_regs->status,
-		      STS_HALT, STS_HALT, 100*100)) {
+		      STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC)) {
 		xhci_warn(xhci, "WARN: xHC CMD_RUN timeout\n");
 		spin_unlock_irq(&xhci->lock);
 		return -ETIMEDOUT;
@@ -802,6 +911,16 @@ int xhci_suspend(struct xhci_hcd *xhci)
 	}
 	spin_unlock_irq(&xhci->lock);
 
+	/*
+	 * Deleting Compliance Mode Recovery Timer because the xHCI Host
+	 * is about to be suspended.
+	 */
+	if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) &&
+			(!(xhci_all_ports_seen_u0(xhci)))) {
+		del_timer_sync(&xhci->comp_mode_recovery_timer);
+		xhci_dbg(xhci, "Compliance Mode Recovery Timer Deleted!\n");
+	}
+
 	/* step 5: remove core well power */
 	/* synchronize irq when using MSI-X */
 	xhci_msix_sync_irqs(xhci);
@@ -934,6 +1053,16 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 		usb_hcd_resume_root_hub(hcd);
 		usb_hcd_resume_root_hub(xhci->shared_hcd);
 	}
+
+	/*
+	 * If system is subject to the Quirk, Compliance Mode Timer needs to
+	 * be re-initialized Always after a system resume. Ports are subject
+	 * to suffer the Compliance Mode issue again. It doesn't matter if
+	 * ports have entered previously to U0 before system's suspension.
+	 */
+	if (xhci->quirks & XHCI_COMP_MODE_QUIRK)
+		compliance_mode_recovery_timer_init(xhci);
+
 	return retval;
 }
 #endif	/* CONFIG_PM */
@@ -1823,7 +1952,7 @@ static void xhci_finish_resource_reservation(struct xhci_hcd *xhci,
 				xhci->num_active_eps);
 }
 
-unsigned int xhci_get_block_size(struct usb_device *udev)
+static unsigned int xhci_get_block_size(struct usb_device *udev)
 {
 	switch (udev->speed) {
 	case USB_SPEED_LOW:
@@ -1841,7 +1970,8 @@ unsigned int xhci_get_block_size(struct usb_device *udev)
 	}
 }
 
-unsigned int xhci_get_largest_overhead(struct xhci_interval_bw *interval_bw)
+static unsigned int
+xhci_get_largest_overhead(struct xhci_interval_bw *interval_bw)
 {
 	if (interval_bw->overhead[LS_OVERHEAD_TYPE])
 		return LS_OVERHEAD;
@@ -2396,6 +2526,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
 	struct completion *cmd_completion;
 	u32 *cmd_status;
 	struct xhci_virt_device *virt_dev;
+	union xhci_trb *cmd_trb;
 
 	spin_lock_irqsave(&xhci->lock, flags);
 	virt_dev = xhci->devs[udev->slot_id];
@@ -2441,6 +2572,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
 	}
 	init_completion(cmd_completion);
 
+	cmd_trb = xhci->cmd_ring->dequeue;
 	if (!ctx_change)
 		ret = xhci_queue_configure_endpoint(xhci, in_ctx->dma,
 				udev->slot_id, must_succeed);
@@ -2462,14 +2594,17 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
 	/* Wait for the configure endpoint command to complete */
 	timeleft = wait_for_completion_interruptible_timeout(
 			cmd_completion,
-			USB_CTRL_SET_TIMEOUT);
+			XHCI_CMD_DEFAULT_TIMEOUT);
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for %s command\n",
 				timeleft == 0 ? "Timeout" : "Signal",
 				ctx_change == 0 ?
 					"configure endpoint" :
 					"evaluate context");
-		/* FIXME cancel the configure endpoint command */
+		/* cancel the configure endpoint command */
+		ret = xhci_cancel_cmd(xhci, command, cmd_trb);
+		if (ret < 0)
+			return ret;
 		return -ETIME;
 	}
 
@@ -3418,8 +3553,10 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	unsigned long flags;
 	int timeleft;
 	int ret;
+	union xhci_trb *cmd_trb;
 
 	spin_lock_irqsave(&xhci->lock, flags);
+	cmd_trb = xhci->cmd_ring->dequeue;
 	ret = xhci_queue_slot_control(xhci, TRB_ENABLE_SLOT, 0);
 	if (ret) {
 		spin_unlock_irqrestore(&xhci->lock, flags);
@@ -3431,12 +3568,12 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 
 	/* XXX: how much time for xHC slot assignment? */
 	timeleft = wait_for_completion_interruptible_timeout(&xhci->addr_dev,
-			USB_CTRL_SET_TIMEOUT);
+			XHCI_CMD_DEFAULT_TIMEOUT);
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for a slot\n",
 				timeleft == 0 ? "Timeout" : "Signal");
-		/* FIXME cancel the enable slot request */
-		return 0;
+		/* cancel the enable slot request */
+		return xhci_cancel_cmd(xhci, NULL, cmd_trb);
 	}
 
 	if (!xhci->slot_id) {
@@ -3497,6 +3634,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 	struct xhci_slot_ctx *slot_ctx;
 	struct xhci_input_control_ctx *ctrl_ctx;
 	u64 temp_64;
+	union xhci_trb *cmd_trb;
 
 	if (!udev->slot_id) {
 		xhci_dbg(xhci, "Bad Slot ID %d\n", udev->slot_id);
@@ -3535,6 +3673,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 	xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2);
 
 	spin_lock_irqsave(&xhci->lock, flags);
+	cmd_trb = xhci->cmd_ring->dequeue;
 	ret = xhci_queue_address_device(xhci, virt_dev->in_ctx->dma,
 					udev->slot_id);
 	if (ret) {
@@ -3547,7 +3686,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 
 	/* ctrl tx can take up to 5 sec; XXX: need more time for xHC? */
 	timeleft = wait_for_completion_interruptible_timeout(&xhci->addr_dev,
-			USB_CTRL_SET_TIMEOUT);
+			XHCI_CMD_DEFAULT_TIMEOUT);
 	/* FIXME: From section 4.3.4: "Software shall be responsible for timing
 	 * the SetAddress() "recovery interval" required by USB and aborting the
 	 * command on a timeout.
@@ -3555,7 +3694,10 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for address device command\n",
 				timeleft == 0 ? "Timeout" : "Signal");
-		/* FIXME cancel the address device command */
+		/* cancel the address device command */
+		ret = xhci_cancel_cmd(xhci, NULL, cmd_trb);
+		if (ret < 0)
+			return ret;
 		return -ETIME;
 	}
 
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 55c0785810c..53df4e70ca0 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1256,6 +1256,16 @@ struct xhci_td {
 	union xhci_trb		*last_trb;
 };
 
+/* xHCI command default timeout value */
+#define XHCI_CMD_DEFAULT_TIMEOUT	(5 * HZ)
+
+/* command descriptor */
+struct xhci_cd {
+	struct list_head	cancel_cmd_list;
+	struct xhci_command	*command;
+	union xhci_trb		*cmd_trb;
+};
+
 struct xhci_dequeue_state {
 	struct xhci_segment *new_deq_seg;
 	union xhci_trb *new_deq_ptr;
@@ -1421,6 +1431,11 @@ struct xhci_hcd {
 	/* data structures */
 	struct xhci_device_context_array *dcbaa;
 	struct xhci_ring	*cmd_ring;
+	unsigned int            cmd_ring_state;
+#define CMD_RING_STATE_RUNNING         (1 << 0)
+#define CMD_RING_STATE_ABORTED         (1 << 1)
+#define CMD_RING_STATE_STOPPED         (1 << 2)
+	struct list_head        cancel_cmd_list;
 	unsigned int		cmd_ring_reserved_trbs;
 	struct xhci_ring	*event_ring;
 	struct xhci_erst	erst;
@@ -1494,6 +1509,9 @@ struct xhci_hcd {
 #define XHCI_TRUST_TX_LENGTH	(1 << 10)
 #define XHCI_LPM_SUPPORT	(1 << 11)
 #define XHCI_INTEL_HOST		(1 << 12)
+#define XHCI_SPURIOUS_REBOOT	(1 << 13)
+#define XHCI_COMP_MODE_QUIRK	(1 << 14)
+#define XHCI_AVOID_BEI		(1 << 15)
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
 	/* There are two roothubs to keep track of bus suspend info for */
@@ -1510,6 +1528,11 @@ struct xhci_hcd {
 	unsigned		sw_lpm_support:1;
 	/* support xHCI 1.0 spec USB2 hardware LPM */
 	unsigned		hw_lpm_support:1;
+	/* Compliance Mode Recovery Data */
+	struct timer_list	comp_mode_recovery_timer;
+	u32			port_status_u0;
+/* Compliance Mode Timer Triggered every 2 seconds */
+#define COMP_MODE_RCVRY_MSECS 2000
 };
 
 /* convert between an HCD pointer and the corresponding EHCI_HCD */
@@ -1537,6 +1560,8 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci)
 	dev_err(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
 #define xhci_warn(xhci, fmt, args...) \
 	dev_warn(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
+#define xhci_warn_ratelimited(xhci, fmt, args...) \
+	dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
 
 /* TODO: copied from ehci.h - can be refactored? */
 /* xHCI spec says all registers are little endian */
@@ -1695,6 +1720,8 @@ static inline void xhci_unregister_plat(void)
 
 /* xHCI host controller glue */
 typedef void (*xhci_get_quirks_t)(struct device *, struct xhci_hcd *);
+int handshake(struct xhci_hcd *xhci, void __iomem *ptr,
+		u32 mask, u32 done, int usec);
 void xhci_quiesce(struct xhci_hcd *xhci);
 int xhci_halt(struct xhci_hcd *xhci);
 int xhci_reset(struct xhci_hcd *xhci);
@@ -1785,6 +1812,8 @@ void xhci_queue_config_ep_quirk(struct xhci_hcd *xhci,
 		unsigned int slot_id, unsigned int ep_index,
 		struct xhci_dequeue_state *deq_state);
 void xhci_stop_endpoint_command_watchdog(unsigned long arg);
+int xhci_cancel_cmd(struct xhci_hcd *xhci, struct xhci_command *command,
+		union xhci_trb *cmd_trb);
 void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
 		unsigned int ep_index, unsigned int stream_id);
 
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 1bfcd02ebeb..a8f05239350 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -244,3 +244,8 @@ config USB_YUREX
 	  To compile this driver as a module, choose M here: the
 	  module will be called yurex.
 
+config USB_EZUSB_FX2
+	tristate "Functions for loading firmware on EZUSB chips"
+	help
+	  Say Y here if you need EZUSB device support.
+	  (Cypress FX/FX2/FX2LP microcontrollers)
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 796ce7ebccc..3e99a643294 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_USB_CYPRESS_CY7C63)	+= cypress_cy7c63.o
 obj-$(CONFIG_USB_CYTHERM)		+= cytherm.o
 obj-$(CONFIG_USB_EMI26)			+= emi26.o
 obj-$(CONFIG_USB_EMI62)			+= emi62.o
+obj-$(CONFIG_USB_EZUSB_FX2)		+= ezusb.o
 obj-$(CONFIG_USB_FTDI_ELAN)		+= ftdi-elan.o
 obj-$(CONFIG_USB_IDMOUSE)		+= idmouse.o
 obj-$(CONFIG_USB_IOWARRIOR)		+= iowarrior.o
diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c
index ff08015b230..ae794b90766 100644
--- a/drivers/usb/misc/emi62.c
+++ b/drivers/usb/misc/emi62.c
@@ -232,7 +232,7 @@ wraperr:
 	return err;
 }
 
-static const struct usb_device_id id_table[] __devinitconst = {
+static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(EMI62_VENDOR_ID, EMI62_PRODUCT_ID) },
 	{ }                                             /* Terminating entry */
 };
diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c
new file mode 100644
index 00000000000..4223d761223
--- /dev/null
+++ b/drivers/usb/misc/ezusb.c
@@ -0,0 +1,160 @@
+/*
+ * EZ-USB specific functions used by some of the USB to Serial drivers.
+ *
+ * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License version
+ *	2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/firmware.h>
+#include <linux/ihex.h>
+
+struct ezusb_fx_type {
+	/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
+	unsigned short cpucs_reg;
+	unsigned short max_internal_adress;
+};
+
+struct ezusb_fx_type ezusb_fx1 = {
+	.cpucs_reg = 0x7F92,
+	.max_internal_adress = 0x1B3F,
+};
+
+struct ezusb_fx_type ezusb_fx2 = {
+	.cpucs_reg = 0xE600,
+	.max_internal_adress = 0x3FFF,
+};
+
+/* Commands for writing to memory */
+#define WRITE_INT_RAM 0xA0
+#define WRITE_EXT_RAM 0xA3
+
+int ezusb_writememory(struct usb_device *dev, int address,
+				unsigned char *data, int length, __u8 request)
+{
+	int result;
+	unsigned char *transfer_buffer;
+
+	if (!dev)
+		return -ENODEV;
+
+	transfer_buffer = kmemdup(data, length, GFP_KERNEL);
+	if (!transfer_buffer) {
+		dev_err(&dev->dev, "%s - kmalloc(%d) failed.\n",
+							__func__, length);
+		return -ENOMEM;
+	}
+	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
+				 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				 address, 0, transfer_buffer, length, 3000);
+
+	kfree(transfer_buffer);
+	return result;
+}
+EXPORT_SYMBOL_GPL(ezusb_writememory);
+
+int ezusb_set_reset(struct usb_device *dev, unsigned short cpucs_reg,
+			 unsigned char reset_bit)
+{
+	int response = ezusb_writememory(dev, cpucs_reg, &reset_bit, 1, WRITE_INT_RAM);
+	if (response < 0)
+		dev_err(&dev->dev, "%s-%d failed: %d\n",
+						__func__, reset_bit, response);
+	return response;
+}
+
+int ezusb_fx1_set_reset(struct usb_device *dev, unsigned char reset_bit)
+{
+	return ezusb_set_reset(dev, ezusb_fx1.cpucs_reg, reset_bit);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx1_set_reset);
+
+int ezusb_fx2_set_reset(struct usb_device *dev, unsigned char reset_bit)
+{
+	return ezusb_set_reset(dev, ezusb_fx2.cpucs_reg, reset_bit);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx2_set_reset);
+
+static int ezusb_ihex_firmware_download(struct usb_device *dev,
+					struct ezusb_fx_type fx,
+					const char *firmware_path)
+{
+	int ret = -ENOENT;
+	const struct firmware *firmware = NULL;
+	const struct ihex_binrec *record;
+
+	if (request_ihex_firmware(&firmware, firmware_path,
+				  &dev->dev)) {
+		dev_err(&dev->dev,
+			"%s - request \"%s\" failed\n",
+			__func__, firmware_path);
+		goto out;
+	}
+
+	ret = ezusb_set_reset(dev, fx.cpucs_reg, 0);
+	if (ret < 0)
+		goto out;
+
+	record = (const struct ihex_binrec *)firmware->data;
+	for (; record; record = ihex_next_binrec(record)) {
+		if (be32_to_cpu(record->addr) > fx.max_internal_adress) {
+			ret = ezusb_writememory(dev, be32_to_cpu(record->addr),
+						(unsigned char *)record->data,
+						be16_to_cpu(record->len), WRITE_EXT_RAM);
+			if (ret < 0) {
+				dev_err(&dev->dev, "%s - ezusb_writememory "
+					"failed writing internal memory "
+					"(%d %04X %p %d)\n", __func__, ret,
+					be32_to_cpu(record->addr), record->data,
+					be16_to_cpu(record->len));
+				goto out;
+			}
+		}
+	}
+
+	ret = ezusb_set_reset(dev, fx.cpucs_reg, 1);
+	if (ret < 0)
+		goto out;
+	record = (const struct ihex_binrec *)firmware->data;
+	for (; record; record = ihex_next_binrec(record)) {
+		if (be32_to_cpu(record->addr) <= fx.max_internal_adress) {
+			ret = ezusb_writememory(dev, be32_to_cpu(record->addr),
+						(unsigned char *)record->data,
+						be16_to_cpu(record->len), WRITE_INT_RAM);
+			if (ret < 0) {
+				dev_err(&dev->dev, "%s - ezusb_writememory "
+					"failed writing external memory "
+					"(%d %04X %p %d)\n", __func__, ret,
+					be32_to_cpu(record->addr), record->data,
+					be16_to_cpu(record->len));
+				goto out;
+			}
+		}
+	}
+	ret = ezusb_set_reset(dev, fx.cpucs_reg, 0);
+out:
+	release_firmware(firmware);
+	return ret;
+}
+
+int ezusb_fx1_ihex_firmware_download(struct usb_device *dev,
+				     const char *firmware_path)
+{
+	return ezusb_ihex_firmware_download(dev, ezusb_fx1, firmware_path);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx1_ihex_firmware_download);
+
+int ezusb_fx2_ihex_firmware_download(struct usb_device *dev,
+				     const char *firmware_path)
+{
+	return ezusb_ihex_firmware_download(dev, ezusb_fx2, firmware_path);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx2_ihex_firmware_download);
+
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index a2702cbfe80..80894791c02 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -868,9 +868,6 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
 
 	dbg(2, "%s: enter", __func__);
 
-	if (udev == NULL)
-		dev_info(&interface->dev, "udev is NULL.\n");
-
 	/* allocate memory for our device state and initialize it */
 
 	dev = kmalloc (sizeof(struct lego_usb_tower), GFP_KERNEL);
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index 1084124c4a4..b9b356a9dd1 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -338,7 +338,7 @@ write_rio(struct file *file, const char __user *buffer,
 				thistime -= partial;
 			} else
 				break;
-		};
+		}
 		if (result) {
 			dev_err(&rio->rio_dev->dev, "Write Whoops - %x\n",
 				result);
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index ef0c3f9f094..23a0b7f0892 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -8,11 +8,10 @@ config USB_MUSB_HDRC
 	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
 	depends on USB && USB_GADGET
 	select NOP_USB_XCEIV if (ARCH_DAVINCI || MACH_OMAP3EVM || BLACKFIN)
-	select NOP_USB_XCEIV if (SOC_OMAPTI81XX || SOC_OMAPAM33XX)
+	select NOP_USB_XCEIV if (SOC_TI81XX || SOC_AM33XX)
 	select TWL4030_USB if MACH_OMAP_3430SDP
 	select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
 	select USB_OTG_UTILS
-	select USB_GADGET_DUALSPEED
 	help
 	  Say Y here if your system has a dual role high speed USB
 	  controller based on the Mentor Graphics silicon IP.  Then
@@ -20,7 +19,7 @@ config USB_MUSB_HDRC
 	  it's being used with, including the USB peripheral role,
 	  or the USB host role, or both.
 
-	  Texas Instruments familiies using this IP include DaVinci
+	  Texas Instruments families using this IP include DaVinci
 	  (35x, 644x ...), OMAP 243x, OMAP 3, and TUSB 6010.
 
 	  Analog Devices parts using this IP include Blackfin BF54x,
@@ -57,7 +56,7 @@ config USB_MUSB_AM35X
 
 config USB_MUSB_DSPS
 	tristate "TI DSPS platforms"
-	depends on SOC_OMAPTI81XX || SOC_OMAPAM33XX
+	depends on SOC_TI81XX || SOC_AM33XX
 
 config USB_MUSB_BLACKFIN
 	tristate "Blackfin"
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 7a95ab87ac0..457f25e62c5 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -33,6 +33,7 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <plat/usb.h>
 
@@ -107,9 +108,8 @@ static void am35x_musb_enable(struct musb *musb)
 	musb_writel(reg_base, CORE_INTR_MASK_SET_REG, AM35X_INTR_USB_MASK);
 
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	if (is_otg_enabled(musb))
-		musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
-			    AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
+	musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
+			AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
 }
 
 /*
@@ -173,9 +173,6 @@ static void otg_timer(unsigned long _musb)
 			    MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
 		devctl = musb_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
@@ -192,9 +189,6 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
 {
 	static unsigned long last_timer;
 
-	if (!is_otg_enabled(musb))
-		return;
-
 	if (timeout == 0)
 		timeout = jiffies + msecs_to_jiffies(3);
 
@@ -271,8 +265,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
 		u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
 		int err;
 
-		err = is_host_enabled(musb) && (musb->int_usb &
-						MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & MUSB_INTR_VBUSERROR;
 		if (err) {
 			/*
 			 * The Mentor core doesn't debounce VBUS as needed
@@ -289,7 +282,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
 			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
-		} else if (is_host_enabled(musb) && drvvbus) {
+		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -326,7 +319,7 @@ eoi:
 	}
 
 	/* Poll for ID change */
-	if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -369,8 +362,7 @@ static int am35x_musb_init(struct musb *musb)
 	if (IS_ERR_OR_NULL(musb->xceiv))
 		return -ENODEV;
 
-	if (is_host_enabled(musb))
-		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+	setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
 
 	/* Reset the musb */
 	if (data->reset)
@@ -400,8 +392,7 @@ static int am35x_musb_exit(struct musb *musb)
 	struct musb_hdrc_platform_data *plat = dev->platform_data;
 	struct omap_musb_board_data *data = plat->board_data;
 
-	if (is_host_enabled(musb))
-		del_timer_sync(&otg_workaround);
+	del_timer_sync(&otg_workaround);
 
 	/* Shutdown the on-chip PHY and its PLL. */
 	if (data->set_phy_power)
@@ -468,6 +459,7 @@ static int __devinit am35x_probe(struct platform_device *pdev)
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -475,38 +467,47 @@ static int __devinit am35x_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
 	phy_clk = clk_get(&pdev->dev, "fck");
 	if (IS_ERR(phy_clk)) {
 		dev_err(&pdev->dev, "failed to get PHY clock\n");
 		ret = PTR_ERR(phy_clk);
-		goto err2;
+		goto err3;
 	}
 
 	clk = clk_get(&pdev->dev, "ick");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
 		ret = PTR_ERR(clk);
-		goto err3;
+		goto err4;
 	}
 
 	ret = clk_enable(phy_clk);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable PHY clock\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = clk_enable(clk);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable clock\n");
-		goto err5;
+		goto err6;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &am35x_dmamask;
 	musb->dev.coherent_dma_mask	= am35x_dmamask;
@@ -524,38 +525,41 @@ static int __devinit am35x_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err6;
+		goto err7;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err6;
+		goto err7;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err6;
+		goto err7;
 	}
 
 	return 0;
 
-err6:
+err7:
 	clk_disable(clk);
 
-err5:
+err6:
 	clk_disable(phy_clk);
 
-err4:
+err5:
 	clk_put(clk);
 
-err3:
+err4:
 	clk_put(phy_clk);
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -567,6 +571,7 @@ static int __devexit am35x_remove(struct platform_device *pdev)
 {
 	struct am35x_glue	*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	clk_disable(glue->clk);
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 428e6aa3e78..e8cff9bb9d2 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -19,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/prefetch.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <asm/cacheflush.h>
 
@@ -184,8 +185,8 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
 	}
 
 	/* Start sampling ID pin, when plug is removed from MUSB */
-	if ((is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
-		|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) ||
+	if ((musb->xceiv->state == OTG_STATE_B_IDLE
+		|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON) ||
 		(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
 		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
 		musb->a_wait_bcon = TIMER_DELAY;
@@ -228,18 +229,13 @@ static void musb_conn_timer_handler(unsigned long _musb)
 
 			val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
 			musb_writeb(musb->mregs, MUSB_INTRUSB, val);
-			if (is_otg_enabled(musb))
-				musb->xceiv->state = OTG_STATE_B_IDLE;
-			else
-				musb_writeb(musb->mregs, MUSB_POWER, MUSB_POWER_HSENAB);
+			musb->xceiv->state = OTG_STATE_B_IDLE;
 		}
 		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
 		break;
 	case OTG_STATE_B_IDLE:
-
-		if (!is_peripheral_enabled(musb))
-			break;
-		/* Start a new session.  It seems that MUSB needs taking
+		/*
+		 * Start a new session.  It seems that MUSB needs taking
 		 * some time to recognize the type of the plug inserted?
 		 */
 		val = musb_readw(musb->mregs, MUSB_DEVCTL);
@@ -295,10 +291,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
 
 static void bfin_musb_enable(struct musb *musb)
 {
-	if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
-		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
-		musb->a_wait_bcon = TIMER_DELAY;
-	}
+	/* REVISIT is this really correct ? */
 }
 
 static void bfin_musb_disable(struct musb *musb)
@@ -323,12 +316,6 @@ static int bfin_musb_set_power(struct usb_phy *x, unsigned mA)
 	return 0;
 }
 
-static void bfin_musb_try_idle(struct musb *musb, unsigned long timeout)
-{
-	if (!is_otg_enabled(musb) && is_host_enabled(musb))
-		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
-}
-
 static int bfin_musb_vbus_status(struct musb *musb)
 {
 	return 0;
@@ -424,12 +411,10 @@ static int bfin_musb_init(struct musb *musb)
 
 	bfin_musb_reg_init(musb);
 
-	if (is_host_enabled(musb)) {
-		setup_timer(&musb_conn_timer,
-			musb_conn_timer_handler, (unsigned long) musb);
-	}
-	if (is_peripheral_enabled(musb))
-		musb->xceiv->set_power = bfin_musb_set_power;
+	setup_timer(&musb_conn_timer, musb_conn_timer_handler,
+			(unsigned long) musb);
+
+	musb->xceiv->set_power = bfin_musb_set_power;
 
 	musb->isr = blackfin_interrupt;
 	musb->double_buffer_not_ok = true;
@@ -454,7 +439,6 @@ static const struct musb_platform_ops bfin_ops = {
 	.disable	= bfin_musb_disable,
 
 	.set_mode	= bfin_musb_set_mode,
-	.try_idle	= bfin_musb_try_idle,
 
 	.vbus_status	= bfin_musb_vbus_status,
 	.set_vbus	= bfin_musb_set_vbus,
@@ -471,6 +455,7 @@ static int __devinit bfin_probe(struct platform_device *pdev)
 	struct bfin_glue		*glue;
 
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -478,12 +463,21 @@ static int __devinit bfin_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &bfin_dmamask;
 	musb->dev.coherent_dma_mask	= bfin_dmamask;
@@ -499,26 +493,29 @@ static int __devinit bfin_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err2;
+		goto err3;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err2;
+		goto err3;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err2;
+		goto err3;
 	}
 
 	return 0;
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -530,6 +527,7 @@ static int __devexit bfin_remove(struct platform_device *pdev)
 {
 	struct bfin_glue		*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	kfree(glue);
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 8637c1f69fc..e19da82b478 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -1316,7 +1316,7 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
 }
 
 /* Instantiate a software object representing a DMA controller. */
-struct dma_controller *__init
+struct dma_controller *__devinit
 dma_controller_create(struct musb *musb, void __iomem *mregs)
 {
 	struct cppi		*controller;
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 0f9fcec4e1d..8bc44b76eec 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -33,9 +33,10 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <mach/da8xx.h>
-#include <mach/usb.h>
+#include <linux/platform_data/usb-davinci.h>
 
 #include "musb_core.h"
 
@@ -155,9 +156,8 @@ static void da8xx_musb_enable(struct musb *musb)
 	musb_writel(reg_base, DA8XX_USB_INTR_MASK_SET_REG, mask);
 
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	if (is_otg_enabled(musb))
-		musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
-			    DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
+	musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
+			DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
 }
 
 /**
@@ -231,9 +231,6 @@ static void otg_timer(unsigned long _musb)
 			    MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
 		/*
 		 * There's no ID-changed IRQ, so we have no good way to tell
 		 * when to switch to the A-Default state machine (by setting
@@ -263,9 +260,6 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
 {
 	static unsigned long last_timer;
 
-	if (!is_otg_enabled(musb))
-		return;
-
 	if (timeout == 0)
 		timeout = jiffies + msecs_to_jiffies(3);
 
@@ -333,8 +327,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 		u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
 		int err;
 
-		err = is_host_enabled(musb) && (musb->int_usb &
-						MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & USB_INTR_VBUSERROR;
 		if (err) {
 			/*
 			 * The Mentor core doesn't debounce VBUS as needed
@@ -351,7 +344,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
-		} else if (is_host_enabled(musb) && drvvbus) {
+		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -382,7 +375,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 		musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
 
 	/* Poll for ID change */
-	if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -430,8 +423,7 @@ static int da8xx_musb_init(struct musb *musb)
 	if (IS_ERR_OR_NULL(musb->xceiv))
 		goto fail;
 
-	if (is_host_enabled(musb))
-		setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
+	setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
 
 	/* Reset the controller */
 	musb_writel(reg_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK);
@@ -454,8 +446,7 @@ fail:
 
 static int da8xx_musb_exit(struct musb *musb)
 {
-	if (is_host_enabled(musb))
-		del_timer_sync(&otg_workaround);
+	del_timer_sync(&otg_workaround);
 
 	phy_off();
 
@@ -489,6 +480,7 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -496,25 +488,34 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
 	clk = clk_get(&pdev->dev, "usb20");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
 		ret = PTR_ERR(clk);
-		goto err2;
+		goto err3;
 	}
 
 	ret = clk_enable(clk);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable clock\n");
-		goto err3;
+		goto err4;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &da8xx_dmamask;
 	musb->dev.coherent_dma_mask	= da8xx_dmamask;
@@ -531,32 +532,35 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err4;
+		goto err5;
 	}
 
 	return 0;
 
-err4:
+err5:
 	clk_disable(clk);
 
-err3:
+err4:
 	clk_put(clk);
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -568,6 +572,7 @@ static int __devexit da8xx_remove(struct platform_device *pdev)
 {
 	struct da8xx_glue		*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	clk_disable(glue->clk);
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 472c8b42d38..606bfd00cde 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -33,6 +33,7 @@
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <mach/cputype.h>
 #include <mach/hardware.h>
@@ -115,8 +116,7 @@ static void davinci_musb_enable(struct musb *musb)
 		dma_off = 0;
 
 	/* force a DRVVBUS irq so we can start polling for ID change */
-	if (is_otg_enabled(musb))
-		musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
+	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
 			DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT);
 }
 
@@ -234,10 +234,8 @@ static void otg_timer(unsigned long _musb)
 			MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
-		/* There's no ID-changed IRQ, so we have no good way to tell
+		/*
+		 * There's no ID-changed IRQ, so we have no good way to tell
 		 * when to switch to the A-Default state machine (by setting
 		 * the DEVCTL.SESSION flag).
 		 *
@@ -315,8 +313,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 		u8	devctl = musb_readb(mregs, MUSB_DEVCTL);
 		int	err = musb->int_usb & MUSB_INTR_VBUSERROR;
 
-		err = is_host_enabled(musb)
-				&& (musb->int_usb & MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & MUSB_INTR_VBUSERROR;
 		if (err) {
 			/* The Mentor core doesn't debounce VBUS as needed
 			 * to cope with device connect current spikes. This
@@ -332,7 +329,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
-		} else if (is_host_enabled(musb) && drvvbus) {
+		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -365,8 +362,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 	musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
 
 	/* poll for ID change */
-	if (is_otg_enabled(musb)
-			&& musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -397,8 +393,7 @@ static int davinci_musb_init(struct musb *musb)
 	if (revision == 0)
 		goto fail;
 
-	if (is_host_enabled(musb))
-		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+	setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
 
 	davinci_musb_source_power(musb, 0, 1);
 
@@ -419,12 +414,7 @@ static int davinci_musb_init(struct musb *musb)
 	if (cpu_is_davinci_dm355()) {
 		u32	deepsleep = __raw_readl(DM355_DEEPSLEEP);
 
-		if (is_host_enabled(musb)) {
-			deepsleep &= ~DRVVBUS_OVERRIDE;
-		} else {
-			deepsleep &= ~DRVVBUS_FORCE;
-			deepsleep |= DRVVBUS_OVERRIDE;
-		}
+		deepsleep &= ~DRVVBUS_FORCE;
 		__raw_writel(deepsleep, DM355_DEEPSLEEP);
 	}
 
@@ -453,8 +443,7 @@ unregister:
 
 static int davinci_musb_exit(struct musb *musb)
 {
-	if (is_host_enabled(musb))
-		del_timer_sync(&otg_workaround);
+	del_timer_sync(&otg_workaround);
 
 	/* force VBUS off */
 	if (cpu_is_davinci_dm355()) {
@@ -468,7 +457,7 @@ static int davinci_musb_exit(struct musb *musb)
 	davinci_musb_source_power(musb, 0 /*off*/, 1);
 
 	/* delay, to avoid problems with module reload */
-	if (is_host_enabled(musb) && musb->xceiv->otg->default_a) {
+	if (musb->xceiv->otg->default_a) {
 		int	maxdelay = 30;
 		u8	devctl, warn = 0;
 
@@ -523,6 +512,7 @@ static int __devinit davinci_probe(struct platform_device *pdev)
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -530,25 +520,34 @@ static int __devinit davinci_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
 	clk = clk_get(&pdev->dev, "usb");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
 		ret = PTR_ERR(clk);
-		goto err2;
+		goto err3;
 	}
 
 	ret = clk_enable(clk);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable clock\n");
-		goto err3;
+		goto err4;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &davinci_dmamask;
 	musb->dev.coherent_dma_mask	= davinci_dmamask;
@@ -565,32 +564,35 @@ static int __devinit davinci_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err4;
+		goto err5;
 	}
 
 	return 0;
 
-err4:
+err5:
 	clk_disable(clk);
 
-err3:
+err4:
 	clk_put(clk);
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -602,6 +604,7 @@ static int __devexit davinci_remove(struct platform_device *pdev)
 {
 	struct davinci_glue		*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	clk_disable(glue->clk);
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 26f1befb489..bb56a0e8b23 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -99,6 +99,8 @@
 #include <linux/prefetch.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/idr.h>
+#include <linux/dma-mapping.h>
 
 #include "musb_core.h"
 
@@ -114,6 +116,7 @@
 
 #define MUSB_DRIVER_NAME "musb-hdrc"
 const char musb_driver_name[] = MUSB_DRIVER_NAME;
+static DEFINE_IDA(musb_ida);
 
 MODULE_DESCRIPTION(DRIVER_INFO);
 MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -130,6 +133,35 @@ static inline struct musb *dev_to_musb(struct device *dev)
 
 /*-------------------------------------------------------------------------*/
 
+int musb_get_id(struct device *dev, gfp_t gfp_mask)
+{
+	int ret;
+	int id;
+
+	ret = ida_pre_get(&musb_ida, gfp_mask);
+	if (!ret) {
+		dev_err(dev, "failed to reserve resource for id\n");
+		return -ENOMEM;
+	}
+
+	ret = ida_get_new(&musb_ida, &id);
+	if (ret < 0) {
+		dev_err(dev, "failed to allocate a new id\n");
+		return ret;
+	}
+
+	return id;
+}
+EXPORT_SYMBOL_GPL(musb_get_id);
+
+void musb_put_id(struct device *dev, int id)
+{
+
+	dev_dbg(dev, "removing id %d\n", id);
+	ida_remove(&musb_ida, id);
+}
+EXPORT_SYMBOL_GPL(musb_put_id);
+
 #ifndef CONFIG_BLACKFIN
 static int musb_ulpi_read(struct usb_phy *phy, u32 offset)
 {
@@ -234,6 +266,9 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
 	struct musb *musb = hw_ep->musb;
 	void __iomem *fifo = hw_ep->fifo;
 
+	if (unlikely(len == 0))
+		return;
+
 	prefetch((u8 *)src);
 
 	dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",
@@ -276,6 +311,9 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
 	struct musb *musb = hw_ep->musb;
 	void __iomem *fifo = hw_ep->fifo;
 
+	if (unlikely(len == 0))
+		return;
+
 	dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",
 			'R', hw_ep->epnum, fifo, len, dst);
 
@@ -348,7 +386,7 @@ void musb_load_testpacket(struct musb *musb)
 /*
  * Handles OTG hnp timeouts, such as b_ase0_brst
  */
-void musb_otg_timer_func(unsigned long data)
+static void musb_otg_timer_func(unsigned long data)
 {
 	struct musb	*musb = (struct musb *)data;
 	unsigned long	flags;
@@ -643,8 +681,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 				break;
 		case OTG_STATE_B_PERIPHERAL:
 			musb_g_suspend(musb);
-			musb->is_active = is_otg_enabled(musb)
-					&& otg->gadget->b_hnp_enable;
+			musb->is_active = otg->gadget->b_hnp_enable;
 			if (musb->is_active) {
 				musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
 				dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n");
@@ -660,8 +697,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 			break;
 		case OTG_STATE_A_HOST:
 			musb->xceiv->state = OTG_STATE_A_SUSPEND;
-			musb->is_active = is_otg_enabled(musb)
-					&& otg->host->b_hnp_enable;
+			musb->is_active = otg->host->b_hnp_enable;
 			break;
 		case OTG_STATE_B_HOST:
 			/* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
@@ -749,7 +785,7 @@ b_host:
 		case OTG_STATE_A_SUSPEND:
 			usb_hcd_resume_root_hub(musb_to_hcd(musb));
 			musb_root_disconnect(musb);
-			if (musb->a_wait_bcon != 0 && is_otg_enabled(musb))
+			if (musb->a_wait_bcon != 0)
 				musb_platform_try_idle(musb, jiffies
 					+ msecs_to_jiffies(musb->a_wait_bcon));
 			break;
@@ -787,7 +823,7 @@ b_host:
 	 */
 	if (int_usb & MUSB_INTR_RESET) {
 		handled = IRQ_HANDLED;
-		if (is_host_capable() && (devctl & MUSB_DEVCTL_HM) != 0) {
+		if ((devctl & MUSB_DEVCTL_HM) != 0) {
 			/*
 			 * Looks like non-HS BABBLE can be ignored, but
 			 * HS BABBLE is an error condition. For HS the solution
@@ -801,7 +837,7 @@ b_host:
 				ERR("Stopping host session -- babble\n");
 				musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 			}
-		} else if (is_peripheral_capable()) {
+		} else {
 			dev_dbg(musb->controller, "BUS RESET as %s\n",
 				otg_state_string(musb->xceiv->state));
 			switch (musb->xceiv->state) {
@@ -925,25 +961,16 @@ void musb_start(struct musb *musb)
 	devctl = musb_readb(regs, MUSB_DEVCTL);
 	devctl &= ~MUSB_DEVCTL_SESSION;
 
-	if (is_otg_enabled(musb)) {
-		/* session started after:
-		 * (a) ID-grounded irq, host mode;
-		 * (b) vbus present/connect IRQ, peripheral mode;
-		 * (c) peripheral initiates, using SRP
-		 */
-		if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
-			musb->is_active = 1;
-		else
-			devctl |= MUSB_DEVCTL_SESSION;
-
-	} else if (is_host_enabled(musb)) {
-		/* assume ID pin is hard-wired to ground */
+	/* session started after:
+	 * (a) ID-grounded irq, host mode;
+	 * (b) vbus present/connect IRQ, peripheral mode;
+	 * (c) peripheral initiates, using SRP
+	 */
+	if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
+		musb->is_active = 1;
+	else
 		devctl |= MUSB_DEVCTL_SESSION;
 
-	} else /* peripheral is enabled */ {
-		if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
-			musb->is_active = 1;
-	}
 	musb_platform_enable(musb);
 	musb_writeb(regs, MUSB_DEVCTL, devctl);
 }
@@ -1007,8 +1034,6 @@ static void musb_shutdown(struct platform_device *pdev)
 	musb_generic_disable(musb);
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-	if (!is_otg_enabled(musb) && is_host_enabled(musb))
-		usb_remove_hcd(musb_to_hcd(musb));
 	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 	musb_platform_exit(musb);
 
@@ -1302,7 +1327,7 @@ done:
 		if (offset < 0) {
 			pr_debug("%s: mem overrun, ep %d\n",
 					musb_driver_name, epn);
-			return -EINVAL;
+			return offset;
 		}
 		epn++;
 		musb->nr_endpoints = max(epn, musb->nr_endpoints);
@@ -1330,7 +1355,7 @@ static int __devinit ep_config_from_hw(struct musb *musb)
 {
 	u8 epnum = 0;
 	struct musb_hw_ep *hw_ep;
-	void *mbase = musb->mregs;
+	void __iomem *mbase = musb->mregs;
 	int ret = 0;
 
 	dev_dbg(musb->controller, "<== static silicon ep config\n");
@@ -1571,13 +1596,10 @@ irqreturn_t musb_interrupt(struct musb *musb)
 			/* musb_ep_select(musb->mregs, ep_num); */
 			/* REVISIT just retval = ep->rx_irq(...) */
 			retval = IRQ_HANDLED;
-			if (devctl & MUSB_DEVCTL_HM) {
-				if (is_host_capable())
-					musb_host_rx(musb, ep_num);
-			} else {
-				if (is_peripheral_capable())
-					musb_g_rx(musb, ep_num);
-			}
+			if (devctl & MUSB_DEVCTL_HM)
+				musb_host_rx(musb, ep_num);
+			else
+				musb_g_rx(musb, ep_num);
 		}
 
 		reg >>= 1;
@@ -1592,13 +1614,10 @@ irqreturn_t musb_interrupt(struct musb *musb)
 			/* musb_ep_select(musb->mregs, ep_num); */
 			/* REVISIT just retval |= ep->tx_irq(...) */
 			retval = IRQ_HANDLED;
-			if (devctl & MUSB_DEVCTL_HM) {
-				if (is_host_capable())
-					musb_host_tx(musb, ep_num);
-			} else {
-				if (is_peripheral_capable())
-					musb_g_tx(musb, ep_num);
-			}
+			if (devctl & MUSB_DEVCTL_HM)
+				musb_host_tx(musb, ep_num);
+			else
+				musb_g_tx(musb, ep_num);
 		}
 		reg >>= 1;
 		ep_num++;
@@ -1634,22 +1653,16 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
 	} else {
 		/* endpoints 1..15 */
 		if (transmit) {
-			if (devctl & MUSB_DEVCTL_HM) {
-				if (is_host_capable())
-					musb_host_tx(musb, epnum);
-			} else {
-				if (is_peripheral_capable())
-					musb_g_tx(musb, epnum);
-			}
+			if (devctl & MUSB_DEVCTL_HM)
+				musb_host_tx(musb, epnum);
+			else
+				musb_g_tx(musb, epnum);
 		} else {
 			/* receive */
-			if (devctl & MUSB_DEVCTL_HM) {
-				if (is_host_capable())
-					musb_host_rx(musb, epnum);
-			} else {
-				if (is_peripheral_capable())
-					musb_g_rx(musb, epnum);
-			}
+			if (devctl & MUSB_DEVCTL_HM)
+				musb_host_rx(musb, epnum);
+			else
+				musb_g_rx(musb, epnum);
 		}
 	}
 }
@@ -1785,10 +1798,9 @@ static const struct attribute_group musb_attr_group = {
 static void musb_irq_work(struct work_struct *data)
 {
 	struct musb *musb = container_of(data, struct musb, irq_work);
-	static int old_state;
 
-	if (musb->xceiv->state != old_state) {
-		old_state = musb->xceiv->state;
+	if (musb->xceiv->state != musb->xceiv_old_state) {
+		musb->xceiv_old_state = musb->xceiv->state;
 		sysfs_notify(&musb->controller->kobj, NULL, "mode");
 	}
 }
@@ -1862,15 +1874,15 @@ static void musb_free(struct musb *musb)
 		dma_controller_destroy(c);
 	}
 
-	kfree(musb);
+	usb_put_hcd(musb_to_hcd(musb));
 }
 
 /*
  * Perform generic per-controller initialization.
  *
- * @pDevice: the controller (already clocked, etc)
- * @nIrq: irq
- * @mregs: virtual address of controller registers,
+ * @dev: the controller (already clocked, etc)
+ * @nIrq: IRQ number
+ * @ctrl: virtual address of controller registers,
  *	not yet corrected for platform-specific offsets
  */
 static int __devinit
@@ -1879,6 +1891,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	int			status;
 	struct musb		*musb;
 	struct musb_hdrc_platform_data *plat = dev->platform_data;
+	struct usb_hcd		*hcd;
 
 	/* The driver might handle more features than the board; OK.
 	 * Fail when the board needs a feature that's not enabled.
@@ -1901,7 +1914,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	pm_runtime_enable(musb->controller);
 
 	spin_lock_init(&musb->lock);
-	musb->board_mode = plat->mode;
 	musb->board_set_power = plat->set_power;
 	musb->min_power = plat->min_power;
 	musb->ops = plat->platform_ops;
@@ -1972,7 +1984,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 		goto fail3;
 	}
 	musb->nIrq = nIrq;
-/* FIXME this handles wakeup irqs wrong */
+	/* FIXME this handles wakeup irqs wrong */
 	if (enable_irq_wake(nIrq) == 0) {
 		musb->irq_wake = 1;
 		device_init_wakeup(dev, 1);
@@ -1981,58 +1993,25 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	}
 
 	/* host side needs more setup */
-	if (is_host_enabled(musb)) {
-		struct usb_hcd	*hcd = musb_to_hcd(musb);
-
-		otg_set_host(musb->xceiv->otg, &hcd->self);
-
-		if (is_otg_enabled(musb))
-			hcd->self.otg_port = 1;
-		musb->xceiv->otg->host = &hcd->self;
-		hcd->power_budget = 2 * (plat->power ? : 250);
-
-		/* program PHY to use external vBus if required */
-		if (plat->extvbus) {
-			u8 busctl = musb_read_ulpi_buscontrol(musb->mregs);
-			busctl |= MUSB_ULPI_USE_EXTVBUS;
-			musb_write_ulpi_buscontrol(musb->mregs, busctl);
-		}
+	hcd = musb_to_hcd(musb);
+	otg_set_host(musb->xceiv->otg, &hcd->self);
+	hcd->self.otg_port = 1;
+	musb->xceiv->otg->host = &hcd->self;
+	hcd->power_budget = 2 * (plat->power ? : 250);
+
+	/* program PHY to use external vBus if required */
+	if (plat->extvbus) {
+		u8 busctl = musb_read_ulpi_buscontrol(musb->mregs);
+		busctl |= MUSB_ULPI_USE_EXTVBUS;
+		musb_write_ulpi_buscontrol(musb->mregs, busctl);
 	}
 
-	/* For the host-only role, we can activate right away.
-	 * (We expect the ID pin to be forcibly grounded!!)
-	 * Otherwise, wait till the gadget driver hooks up.
-	 */
-	if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
-		struct usb_hcd	*hcd = musb_to_hcd(musb);
-
-		MUSB_HST_MODE(musb);
-		musb->xceiv->otg->default_a = 1;
-		musb->xceiv->state = OTG_STATE_A_IDLE;
-
-		status = usb_add_hcd(musb_to_hcd(musb), 0, 0);
-
-		hcd->self.uses_pio_for_control = 1;
-		dev_dbg(musb->controller, "%s mode, status %d, devctl %02x %c\n",
-			"HOST", status,
-			musb_readb(musb->mregs, MUSB_DEVCTL),
-			(musb_readb(musb->mregs, MUSB_DEVCTL)
-					& MUSB_DEVCTL_BDEVICE
-				? 'B' : 'A'));
-
-	} else /* peripheral is enabled */ {
-		MUSB_DEV_MODE(musb);
-		musb->xceiv->otg->default_a = 0;
-		musb->xceiv->state = OTG_STATE_B_IDLE;
-
-		status = musb_gadget_setup(musb);
+	MUSB_DEV_MODE(musb);
+	musb->xceiv->otg->default_a = 0;
+	musb->xceiv->state = OTG_STATE_B_IDLE;
 
-		dev_dbg(musb->controller, "%s mode, status %d, dev%02x\n",
-			is_otg_enabled(musb) ? "OTG" : "PERIPHERAL",
-			status,
-			musb_readb(musb->mregs, MUSB_DEVCTL));
+	status = musb_gadget_setup(musb);
 
-	}
 	if (status < 0)
 		goto fail3;
 
@@ -2048,28 +2027,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 
 	pm_runtime_put(musb->controller);
 
-	dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
-			({char *s;
-			 switch (musb->board_mode) {
-			 case MUSB_HOST:		s = "Host"; break;
-			 case MUSB_PERIPHERAL:	s = "Peripheral"; break;
-			 default:		s = "OTG"; break;
-			 }; s; }),
-			ctrl,
-			(is_dma_capable() && musb->dma_controller)
-			? "DMA" : "PIO",
-			musb->nIrq);
-
 	return 0;
 
 fail5:
 	musb_exit_debugfs(musb);
 
 fail4:
-	if (!is_otg_enabled(musb) && is_host_enabled(musb))
-		usb_remove_hcd(musb_to_hcd(musb));
-	else
-		musb_gadget_cleanup(musb);
+	musb_gadget_cleanup(musb);
 
 fail3:
 	pm_runtime_put_sync(musb->controller);
@@ -2096,11 +2060,6 @@ fail0:
 /* all implementations (PCI bridge to FPGA, VLYNQ, etc) should just
  * bridge to a platform device; this driver then suffices.
  */
-
-#ifndef CONFIG_MUSB_PIO_ONLY
-static u64	*orig_dma_mask;
-#endif
-
 static int __devinit musb_probe(struct platform_device *pdev)
 {
 	struct device	*dev = &pdev->dev;
@@ -2119,10 +2078,6 @@ static int __devinit musb_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-#ifndef CONFIG_MUSB_PIO_ONLY
-	/* clobbered by use_dma=n */
-	orig_dma_mask = dev->dma_mask;
-#endif
 	status = musb_init_controller(dev, irq, base);
 	if (status < 0)
 		iounmap(base);
@@ -2132,7 +2087,8 @@ static int __devinit musb_probe(struct platform_device *pdev)
 
 static int __devexit musb_remove(struct platform_device *pdev)
 {
-	struct musb	*musb = dev_to_musb(&pdev->dev);
+	struct device	*dev = &pdev->dev;
+	struct musb	*musb = dev_to_musb(dev);
 	void __iomem	*ctrl_base = musb->ctrl_base;
 
 	/* this gets called on rmmod.
@@ -2145,9 +2101,9 @@ static int __devexit musb_remove(struct platform_device *pdev)
 
 	musb_free(musb);
 	iounmap(ctrl_base);
-	device_init_wakeup(&pdev->dev, 0);
+	device_init_wakeup(dev, 0);
 #ifndef CONFIG_MUSB_PIO_ONLY
-	pdev->dev.dma_mask = orig_dma_mask;
+	dma_set_mask(dev, *dev->parent->dma_mask);
 #endif
 	return 0;
 }
@@ -2160,11 +2116,9 @@ static void musb_save_context(struct musb *musb)
 	void __iomem *musb_base = musb->mregs;
 	void __iomem *epio;
 
-	if (is_host_enabled(musb)) {
-		musb->context.frame = musb_readw(musb_base, MUSB_FRAME);
-		musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
-		musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
-	}
+	musb->context.frame = musb_readw(musb_base, MUSB_FRAME);
+	musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
+	musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
 	musb->context.power = musb_readb(musb_base, MUSB_POWER);
 	musb->context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);
 	musb->context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE);
@@ -2203,30 +2157,29 @@ static void musb_save_context(struct musb *musb)
 			musb->context.index_regs[i].rxfifosz =
 					musb_read_rxfifosz(musb_base);
 		}
-		if (is_host_enabled(musb)) {
-			musb->context.index_regs[i].txtype =
-				musb_readb(epio, MUSB_TXTYPE);
-			musb->context.index_regs[i].txinterval =
-				musb_readb(epio, MUSB_TXINTERVAL);
-			musb->context.index_regs[i].rxtype =
-				musb_readb(epio, MUSB_RXTYPE);
-			musb->context.index_regs[i].rxinterval =
-				musb_readb(epio, MUSB_RXINTERVAL);
-
-			musb->context.index_regs[i].txfunaddr =
-				musb_read_txfunaddr(musb_base, i);
-			musb->context.index_regs[i].txhubaddr =
-				musb_read_txhubaddr(musb_base, i);
-			musb->context.index_regs[i].txhubport =
-				musb_read_txhubport(musb_base, i);
-
-			musb->context.index_regs[i].rxfunaddr =
-				musb_read_rxfunaddr(musb_base, i);
-			musb->context.index_regs[i].rxhubaddr =
-				musb_read_rxhubaddr(musb_base, i);
-			musb->context.index_regs[i].rxhubport =
-				musb_read_rxhubport(musb_base, i);
-		}
+
+		musb->context.index_regs[i].txtype =
+			musb_readb(epio, MUSB_TXTYPE);
+		musb->context.index_regs[i].txinterval =
+			musb_readb(epio, MUSB_TXINTERVAL);
+		musb->context.index_regs[i].rxtype =
+			musb_readb(epio, MUSB_RXTYPE);
+		musb->context.index_regs[i].rxinterval =
+			musb_readb(epio, MUSB_RXINTERVAL);
+
+		musb->context.index_regs[i].txfunaddr =
+			musb_read_txfunaddr(musb_base, i);
+		musb->context.index_regs[i].txhubaddr =
+			musb_read_txhubaddr(musb_base, i);
+		musb->context.index_regs[i].txhubport =
+			musb_read_txhubport(musb_base, i);
+
+		musb->context.index_regs[i].rxfunaddr =
+			musb_read_rxfunaddr(musb_base, i);
+		musb->context.index_regs[i].rxhubaddr =
+			musb_read_rxhubaddr(musb_base, i);
+		musb->context.index_regs[i].rxhubport =
+			musb_read_rxhubport(musb_base, i);
 	}
 }
 
@@ -2237,11 +2190,9 @@ static void musb_restore_context(struct musb *musb)
 	void __iomem *ep_target_regs;
 	void __iomem *epio;
 
-	if (is_host_enabled(musb)) {
-		musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
-		musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
-		musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
-	}
+	musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
+	musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
+	musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
 	musb_writeb(musb_base, MUSB_POWER, musb->context.power);
 	musb_writew(musb_base, MUSB_INTRTXE, musb->context.intrtxe);
 	musb_writew(musb_base, MUSB_INTRRXE, musb->context.intrrxe);
@@ -2280,33 +2231,31 @@ static void musb_restore_context(struct musb *musb)
 				musb->context.index_regs[i].rxfifoadd);
 		}
 
-		if (is_host_enabled(musb)) {
-			musb_writeb(epio, MUSB_TXTYPE,
+		musb_writeb(epio, MUSB_TXTYPE,
 				musb->context.index_regs[i].txtype);
-			musb_writeb(epio, MUSB_TXINTERVAL,
+		musb_writeb(epio, MUSB_TXINTERVAL,
 				musb->context.index_regs[i].txinterval);
-			musb_writeb(epio, MUSB_RXTYPE,
+		musb_writeb(epio, MUSB_RXTYPE,
 				musb->context.index_regs[i].rxtype);
-			musb_writeb(epio, MUSB_RXINTERVAL,
+		musb_writeb(epio, MUSB_RXINTERVAL,
 
-			musb->context.index_regs[i].rxinterval);
-			musb_write_txfunaddr(musb_base, i,
+				musb->context.index_regs[i].rxinterval);
+		musb_write_txfunaddr(musb_base, i,
 				musb->context.index_regs[i].txfunaddr);
-			musb_write_txhubaddr(musb_base, i,
+		musb_write_txhubaddr(musb_base, i,
 				musb->context.index_regs[i].txhubaddr);
-			musb_write_txhubport(musb_base, i,
+		musb_write_txhubport(musb_base, i,
 				musb->context.index_regs[i].txhubport);
 
-			ep_target_regs =
-				musb_read_target_reg_base(i, musb_base);
+		ep_target_regs =
+			musb_read_target_reg_base(i, musb_base);
 
-			musb_write_rxfunaddr(ep_target_regs,
+		musb_write_rxfunaddr(ep_target_regs,
 				musb->context.index_regs[i].rxfunaddr);
-			musb_write_rxhubaddr(ep_target_regs,
+		musb_write_rxhubaddr(ep_target_regs,
 				musb->context.index_regs[i].rxhubaddr);
-			musb_write_rxhubport(ep_target_regs,
+		musb_write_rxhubport(ep_target_regs,
 				musb->context.index_regs[i].rxhubport);
-		}
 	}
 	musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 586105b55a7..c158aacd6de 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -71,10 +71,6 @@ struct musb_ep;
 #include <linux/usb/hcd.h>
 #include "musb_host.h"
 
-#define	is_peripheral_enabled(musb)	((musb)->board_mode != MUSB_HOST)
-#define	is_host_enabled(musb)		((musb)->board_mode != MUSB_PERIPHERAL)
-#define	is_otg_enabled(musb)		((musb)->board_mode == MUSB_OTG)
-
 /* NOTE:  otg and peripheral-only state machines start at B_IDLE.
  * OTG or host-only go to A_IDLE when ID is sensed.
  */
@@ -88,8 +84,6 @@ struct musb_ep;
 
 /****************************** PERIPHERAL ROLE *****************************/
 
-#define	is_peripheral_capable()	(1)
-
 extern irqreturn_t musb_g_ep0_irq(struct musb *);
 extern void musb_g_tx(struct musb *, u8);
 extern void musb_g_rx(struct musb *, u8);
@@ -101,8 +95,6 @@ extern void musb_g_disconnect(struct musb *);
 
 /****************************** HOST ROLE ***********************************/
 
-#define	is_host_capable()	(1)
-
 extern irqreturn_t musb_h_ep0_irq(struct musb *);
 extern void musb_host_tx(struct musb *, u8);
 extern void musb_host_rx(struct musb *, u8);
@@ -376,7 +368,6 @@ struct musb {
 	u16 epmask;
 	u8 nr_endpoints;
 
-	u8 board_mode;		/* enum musb_mode */
 	int			(*board_set_power)(int state);
 
 	u8			min_power;	/* vbus for periph, in mA/2 */
@@ -446,6 +437,10 @@ struct musb {
 #ifdef MUSB_CONFIG_PROC_FS
 	struct proc_dir_entry *proc_entry;
 #endif
+	int			xceiv_old_state;
+#ifdef CONFIG_DEBUG_FS
+	struct dentry		*debugfs_root;
+#endif
 };
 
 static inline struct musb *gadget_to_musb(struct usb_gadget *g)
@@ -484,7 +479,7 @@ static inline void musb_configure_ep0(struct musb *musb)
 static inline int musb_read_fifosize(struct musb *musb,
 		struct musb_hw_ep *hw_ep, u8 epnum)
 {
-	void *mbase = musb->mregs;
+	void __iomem *mbase = musb->mregs;
 	u8 reg = 0;
 
 	/* read from core using indexed model */
@@ -526,6 +521,8 @@ extern const char musb_driver_name[];
 
 extern void musb_start(struct musb *musb);
 extern void musb_stop(struct musb *musb);
+extern int musb_get_id(struct device *dev, gfp_t gfp_mask);
+extern void musb_put_id(struct device *dev, int id);
 
 extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src);
 extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst);
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 40a37c91cc1..1d6e8af94c0 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -103,8 +103,6 @@ static const struct musb_register_map musb_regmap[] = {
 	{  }	/* Terminating Entry */
 };
 
-static struct dentry *musb_debugfs_root;
-
 static int musb_regdump_show(struct seq_file *s, void *unused)
 {
 	struct musb		*musb = s->private;
@@ -241,7 +239,7 @@ int __devinit musb_init_debugfs(struct musb *musb)
 	struct dentry		*file;
 	int			ret;
 
-	root = debugfs_create_dir("musb", NULL);
+	root = debugfs_create_dir(dev_name(musb->controller), NULL);
 	if (!root) {
 		ret = -ENOMEM;
 		goto err0;
@@ -261,7 +259,7 @@ int __devinit musb_init_debugfs(struct musb *musb)
 		goto err1;
 	}
 
-	musb_debugfs_root = root;
+	musb->debugfs_root = root;
 
 	return 0;
 
@@ -274,5 +272,5 @@ err0:
 
 void /* __init_or_exit */ musb_exit_debugfs(struct musb *musb)
 {
-	debugfs_remove_recursive(musb_debugfs_root);
+	debugfs_remove_recursive(musb->debugfs_root);
 }
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 3a97c4e2d4f..24d39210d4a 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -178,7 +178,7 @@ struct dma_controller {
 extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
 
 
-extern struct dma_controller *__init
+extern struct dma_controller *__devinit
 dma_controller_create(struct musb *, void __iomem *);
 
 extern void dma_controller_destroy(struct dma_controller *);
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 217808d9fbe..444346e1e10 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -31,11 +31,13 @@
 
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/pm_runtime.h>
 #include <linux/module.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -45,6 +47,10 @@
 
 #include "musb_core.h"
 
+#ifdef CONFIG_OF
+static const struct of_device_id musb_dsps_of_match[];
+#endif
+
 /**
  * avoid using musb_readx()/musb_writex() as glue layer should not be
  * dependent on musb core layer symbols.
@@ -105,6 +111,8 @@ struct dsps_musb_wrapper {
 	/* miscellaneous stuff */
 	u32		musb_core_offset;
 	u8		poll_seconds;
+	/* number of musb instances */
+	u8		instances;
 };
 
 /**
@@ -112,9 +120,10 @@ struct dsps_musb_wrapper {
  */
 struct dsps_glue {
 	struct device *dev;
-	struct platform_device *musb;	/* child musb pdev */
+	struct platform_device *musb[2];	/* child musb pdev */
 	const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */
-	struct timer_list timer;	/* otg_workaround timer */
+	struct timer_list timer[2];	/* otg_workaround timer */
+	unsigned long last_timer[2];    /* last timer data for each instance */
 };
 
 /**
@@ -137,9 +146,8 @@ static void dsps_musb_enable(struct musb *musb)
 	dsps_writel(reg_base, wrp->epintr_set, epmask);
 	dsps_writel(reg_base, wrp->coreintr_set, coremask);
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	if (is_otg_enabled(musb))
-		dsps_writel(reg_base, wrp->coreintr_set,
-			    (1 << wrp->drvvbus) << wrp->usb_shift);
+	dsps_writel(reg_base, wrp->coreintr_set,
+		    (1 << wrp->drvvbus) << wrp->usb_shift);
 }
 
 /**
@@ -165,8 +173,8 @@ static void otg_timer(unsigned long _musb)
 	struct musb *musb = (void *)_musb;
 	void __iomem *mregs = musb->mregs;
 	struct device *dev = musb->controller;
-	struct platform_device *pdev = to_platform_device(dev->parent);
-	struct dsps_glue *glue = platform_get_drvdata(pdev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
 	const struct dsps_musb_wrapper *wrp = glue->wrp;
 	u8 devctl;
 	unsigned long flags;
@@ -200,12 +208,9 @@ static void otg_timer(unsigned long _musb)
 			    MUSB_INTR_VBUSERROR << wrp->usb_shift);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
 		devctl = dsps_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
-			mod_timer(&glue->timer,
+			mod_timer(&glue->timer[pdev->id],
 					jiffies + wrp->poll_seconds * HZ);
 		else
 			musb->xceiv->state = OTG_STATE_A_IDLE;
@@ -219,12 +224,8 @@ static void otg_timer(unsigned long _musb)
 static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
 {
 	struct device *dev = musb->controller;
-	struct platform_device *pdev = to_platform_device(dev->parent);
-	struct dsps_glue *glue = platform_get_drvdata(pdev);
-	static unsigned long last_timer;
-
-	if (!is_otg_enabled(musb))
-		return;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
 
 	if (timeout == 0)
 		timeout = jiffies + msecs_to_jiffies(3);
@@ -234,22 +235,23 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
 				musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
 		dev_dbg(musb->controller, "%s active, deleting timer\n",
 				otg_state_string(musb->xceiv->state));
-		del_timer(&glue->timer);
-		last_timer = jiffies;
+		del_timer(&glue->timer[pdev->id]);
+		glue->last_timer[pdev->id] = jiffies;
 		return;
 	}
 
-	if (time_after(last_timer, timeout) && timer_pending(&glue->timer)) {
+	if (time_after(glue->last_timer[pdev->id], timeout) &&
+				timer_pending(&glue->timer[pdev->id])) {
 		dev_dbg(musb->controller,
 			"Longer idle timer already pending, ignoring...\n");
 		return;
 	}
-	last_timer = timeout;
+	glue->last_timer[pdev->id] = timeout;
 
 	dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
 		otg_state_string(musb->xceiv->state),
 			jiffies_to_msecs(timeout - jiffies));
-	mod_timer(&glue->timer, timeout);
+	mod_timer(&glue->timer[pdev->id], timeout);
 }
 
 static irqreturn_t dsps_interrupt(int irq, void *hci)
@@ -257,8 +259,8 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 	struct musb  *musb = hci;
 	void __iomem *reg_base = musb->ctrl_base;
 	struct device *dev = musb->controller;
-	struct platform_device *pdev = to_platform_device(dev->parent);
-	struct dsps_glue *glue = platform_get_drvdata(pdev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
 	const struct dsps_musb_wrapper *wrp = glue->wrp;
 	unsigned long flags;
 	irqreturn_t ret = IRQ_NONE;
@@ -293,7 +295,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 	 * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
 	 * Also, DRVVBUS pulses for SRP (but not at 5V) ...
 	 */
-	if ((usbintr & MUSB_INTR_BABBLE) && is_host_enabled(musb))
+	if (usbintr & MUSB_INTR_BABBLE)
 		pr_info("CAUTION: musb: Babble Interrupt Occured\n");
 
 	if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
@@ -302,8 +304,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 		u8 devctl = dsps_readb(mregs, MUSB_DEVCTL);
 		int err;
 
-		err = is_host_enabled(musb) && (musb->int_usb &
-						MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & MUSB_INTR_VBUSERROR;
 		if (err) {
 			/*
 			 * The Mentor core doesn't debounce VBUS as needed
@@ -318,15 +319,15 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 			 */
 			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
-			mod_timer(&glue->timer,
+			mod_timer(&glue->timer[pdev->id],
 					jiffies + wrp->poll_seconds * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
-		} else if (is_host_enabled(musb) && drvvbus) {
+		} else if (drvvbus) {
 			musb->is_active = 1;
 			MUSB_HST_MODE(musb);
 			musb->xceiv->otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
-			del_timer(&glue->timer);
+			del_timer(&glue->timer[pdev->id]);
 		} else {
 			musb->is_active = 0;
 			MUSB_DEV_MODE(musb);
@@ -352,8 +353,9 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 		dsps_writel(reg_base, wrp->eoi, 1);
 
 	/* Poll for ID change */
-	if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
-		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
+		mod_timer(&glue->timer[pdev->id],
+			 jiffies + wrp->poll_seconds * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
 
@@ -364,8 +366,8 @@ static int dsps_musb_init(struct musb *musb)
 {
 	struct device *dev = musb->controller;
 	struct musb_hdrc_platform_data *plat = dev->platform_data;
-	struct platform_device *pdev = to_platform_device(dev->parent);
-	struct dsps_glue *glue = platform_get_drvdata(pdev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
 	const struct dsps_musb_wrapper *wrp = glue->wrp;
 	struct omap_musb_board_data *data = plat->board_data;
 	void __iomem *reg_base = musb->ctrl_base;
@@ -375,8 +377,7 @@ static int dsps_musb_init(struct musb *musb)
 	/* mentor core register starts at offset of 0x400 from musb base */
 	musb->mregs += wrp->musb_core_offset;
 
-	/* NOP driver needs change if supporting dual instance */
-	usb_nop_xceiv_register();
+	/* Get the NOP PHY */
 	musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
 	if (IS_ERR_OR_NULL(musb->xceiv))
 		return -ENODEV;
@@ -388,8 +389,7 @@ static int dsps_musb_init(struct musb *musb)
 		goto err0;
 	}
 
-	if (is_host_enabled(musb))
-		setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
+	setup_timer(&glue->timer[pdev->id], otg_timer, (unsigned long) musb);
 
 	/* Reset the musb */
 	dsps_writel(reg_base, wrp->control, (1 << wrp->reset));
@@ -420,11 +420,10 @@ static int dsps_musb_exit(struct musb *musb)
 	struct device *dev = musb->controller;
 	struct musb_hdrc_platform_data *plat = dev->platform_data;
 	struct omap_musb_board_data *data = plat->board_data;
-	struct platform_device *pdev = to_platform_device(dev->parent);
-	struct dsps_glue *glue = platform_get_drvdata(pdev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
 
-	if (is_host_enabled(musb))
-		del_timer_sync(&glue->timer);
+	del_timer_sync(&glue->timer[pdev->id]);
 
 	/* Shutdown the on-chip PHY and its PLL. */
 	if (data->set_phy_power)
@@ -454,11 +453,13 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
 	struct device *dev = glue->dev;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct musb_hdrc_platform_data  *pdata = dev->platform_data;
+	struct device_node *np = pdev->dev.of_node;
+	struct musb_hdrc_config	*config;
 	struct platform_device	*musb;
 	struct resource *res;
 	struct resource	resources[2];
 	char res_name[10];
-	int ret;
+	int ret, musbid;
 
 	/* get memory resource */
 	sprintf(res_name, "musb%d", id);
@@ -479,66 +480,111 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
 		ret = -ENODEV;
 		goto err0;
 	}
-	strcpy((u8 *)res->name, "mc");
 	res->parent = NULL;
 	resources[1] = *res;
+	resources[1].name = "mc";
 
+	/* get the musb id */
+	musbid = musb_get_id(dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err0;
+	}
 	/* allocate the child platform device */
-	musb = platform_device_alloc("musb-hdrc", -1);
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(dev, "failed to allocate musb device\n");
 		ret = -ENOMEM;
-		goto err0;
+		goto err1;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= dev;
 	musb->dev.dma_mask		= &musb_dmamask;
 	musb->dev.coherent_dma_mask	= musb_dmamask;
 
-	glue->musb			= musb;
-
-	pdata->platform_ops		= &dsps_ops;
+	glue->musb[id]			= musb;
 
 	ret = platform_device_add_resources(musb, resources, 2);
 	if (ret) {
 		dev_err(dev, "failed to add resources\n");
-		goto err1;
+		goto err2;
 	}
 
+	if (np) {
+		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+		if (!pdata) {
+			dev_err(&pdev->dev,
+				"failed to allocate musb platfrom data\n");
+			ret = -ENOMEM;
+			goto err2;
+		}
+
+		config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+		if (!config) {
+			dev_err(&pdev->dev,
+				"failed to allocate musb hdrc config\n");
+			goto err2;
+		}
+
+		of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
+		of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
+		sprintf(res_name, "port%d-mode", id);
+		of_property_read_u32(np, res_name, (u32 *)&pdata->mode);
+		of_property_read_u32(np, "power", (u32 *)&pdata->power);
+		config->multipoint = of_property_read_bool(np, "multipoint");
+
+		pdata->config		= config;
+	}
+
+	pdata->platform_ops		= &dsps_ops;
+
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(dev, "failed to add platform_data\n");
-		goto err1;
+		goto err2;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(dev, "failed to register musb device\n");
-		goto err1;
+		goto err2;
 	}
 
 	return 0;
 
-err1:
+err2:
 	platform_device_put(musb);
+err1:
+	musb_put_id(dev, musbid);
 err0:
 	return ret;
 }
 
-static void __devexit dsps_delete_musb_pdev(struct dsps_glue *glue)
+static void dsps_delete_musb_pdev(struct dsps_glue *glue, u8 id)
 {
-	platform_device_del(glue->musb);
-	platform_device_put(glue->musb);
+	musb_put_id(glue->dev, glue->musb[id]->id);
+	platform_device_del(glue->musb[id]);
+	platform_device_put(glue->musb[id]);
 }
 
 static int __devinit dsps_probe(struct platform_device *pdev)
 {
-	const struct platform_device_id *id = platform_get_device_id(pdev);
-	const struct dsps_musb_wrapper *wrp =
-				(struct dsps_musb_wrapper *)id->driver_data;
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *match;
+	const struct dsps_musb_wrapper *wrp;
 	struct dsps_glue *glue;
 	struct resource *iomem;
-	int ret;
+	int ret, i;
+
+	match = of_match_node(musb_dsps_of_match, np);
+	if (!match) {
+		dev_err(&pdev->dev, "fail to get matching of_match struct\n");
+		ret = -EINVAL;
+		goto err0;
+	}
+	wrp = match->data;
 
 	/* allocate glue */
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
@@ -566,27 +612,33 @@ static int __devinit dsps_probe(struct platform_device *pdev)
 	}
 	platform_set_drvdata(pdev, glue);
 
-	/* create the child platform device for first instances of musb */
-	ret = dsps_create_musb_pdev(glue, 0);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "failed to create child pdev\n");
-		goto err2;
-	}
-
 	/* enable the usbss clocks */
 	pm_runtime_enable(&pdev->dev);
 
 	ret = pm_runtime_get_sync(&pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "pm_runtime_get_sync FAILED");
-		goto err3;
+		goto err2;
+	}
+
+	/* create the child platform device for all instances of musb */
+	for (i = 0; i < wrp->instances ; i++) {
+		ret = dsps_create_musb_pdev(glue, i);
+		if (ret != 0) {
+			dev_err(&pdev->dev, "failed to create child pdev\n");
+			/* release resources of previously created instances */
+			for (i--; i >= 0 ; i--)
+				dsps_delete_musb_pdev(glue, i);
+			goto err3;
+		}
 	}
 
 	return 0;
 
 err3:
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_put(&pdev->dev);
 err2:
+	pm_runtime_disable(&pdev->dev);
 	kfree(glue->wrp);
 err1:
 	kfree(glue);
@@ -596,9 +648,12 @@ err0:
 static int __devexit dsps_remove(struct platform_device *pdev)
 {
 	struct dsps_glue *glue = platform_get_drvdata(pdev);
+	const struct dsps_musb_wrapper *wrp = glue->wrp;
+	int i;
 
 	/* delete the child platform device */
-	dsps_delete_musb_pdev(glue);
+	for (i = 0; i < wrp->instances ; i++)
+		dsps_delete_musb_pdev(glue, i);
 
 	/* disable usbss clocks */
 	pm_runtime_put(&pdev->dev);
@@ -664,6 +719,7 @@ static const struct dsps_musb_wrapper ti81xx_driver_data __devinitconst = {
 	.rxep_bitmap		= (0xfffe << 16),
 	.musb_core_offset	= 0x400,
 	.poll_seconds		= 2,
+	.instances		= 2,
 };
 
 static const struct platform_device_id musb_dsps_id_table[] __devinitconst = {
@@ -675,13 +731,14 @@ static const struct platform_device_id musb_dsps_id_table[] __devinitconst = {
 };
 MODULE_DEVICE_TABLE(platform, musb_dsps_id_table);
 
+#ifdef CONFIG_OF
 static const struct of_device_id musb_dsps_of_match[] __devinitconst = {
-	{ .compatible = "musb-ti81xx", },
-	{ .compatible = "ti,ti81xx-musb", },
-	{ .compatible = "ti,am335x-musb", },
+	{ .compatible = "ti,musb-am33xx",
+		.data = (void *) &ti81xx_driver_data, },
 	{  },
 };
 MODULE_DEVICE_TABLE(of, musb_dsps_of_match);
+#endif
 
 static struct platform_driver dsps_usbss_driver = {
 	.probe		= dsps_probe,
@@ -689,7 +746,7 @@ static struct platform_driver dsps_usbss_driver = {
 	.driver         = {
 		.name   = "musb-dsps",
 		.pm	= &dsps_pm_ops,
-		.of_match_table	= musb_dsps_of_match,
+		.of_match_table	= of_match_ptr(musb_dsps_of_match),
 	},
 	.id_table	= musb_dsps_id_table,
 };
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index f7194cf65ab..d0b87e7b4ab 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -373,7 +373,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
 		request_size = min_t(size_t, request->length - request->actual,
 					musb_ep->dma->max_len);
 
-		use_dma = (request->dma != DMA_ADDR_INVALID);
+		use_dma = (request->dma != DMA_ADDR_INVALID && request_size);
 
 		/* MUSB_TXCSR_P_ISO is still set correctly */
 
@@ -644,8 +644,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 	struct usb_request	*request = &req->request;
 	struct musb_ep		*musb_ep;
 	void __iomem		*epio = musb->endpoints[epnum].regs;
-	unsigned		fifo_count = 0;
-	u16			len;
+	unsigned		len = 0;
+	u16			fifo_count;
 	u16			csr = musb_readw(epio, MUSB_RXCSR);
 	struct musb_hw_ep	*hw_ep = &musb->endpoints[epnum];
 	u8			use_mode_1;
@@ -655,7 +655,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 	else
 		musb_ep = &hw_ep->ep_out;
 
-	len = musb_ep->packet_sz;
+	fifo_count = musb_ep->packet_sz;
 
 	/* Check if EP is disabled */
 	if (!musb_ep->desc) {
@@ -704,15 +704,14 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 	}
 
 	if (csr & MUSB_RXCSR_RXPKTRDY) {
-		len = musb_readw(epio, MUSB_RXCOUNT);
+		fifo_count = musb_readw(epio, MUSB_RXCOUNT);
 
 		/*
-		 * Enable Mode 1 on RX transfers only when short_not_ok flag
-		 * is set. Currently short_not_ok flag is set only from
-		 * file_storage and f_mass_storage drivers
+		 *  use mode 1 only if we expect data of at least ep packet_sz
+		 *  and have not yet received a short packet
 		 */
-
-		if (request->short_not_ok && len == musb_ep->packet_sz)
+		if ((request->length - request->actual >= musb_ep->packet_sz) &&
+			(fifo_count >= musb_ep->packet_sz))
 			use_mode_1 = 1;
 		else
 			use_mode_1 = 0;
@@ -723,31 +722,11 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 				struct dma_controller	*c;
 				struct dma_channel	*channel;
 				int			use_dma = 0;
+				int transfer_size;
 
 				c = musb->dma_controller;
 				channel = musb_ep->dma;
 
-	/* We use DMA Req mode 0 in rx_csr, and DMA controller operates in
-	 * mode 0 only. So we do not get endpoint interrupts due to DMA
-	 * completion. We only get interrupts from DMA controller.
-	 *
-	 * We could operate in DMA mode 1 if we knew the size of the tranfer
-	 * in advance. For mass storage class, request->length = what the host
-	 * sends, so that'd work.  But for pretty much everything else,
-	 * request->length is routinely more than what the host sends. For
-	 * most these gadgets, end of is signified either by a short packet,
-	 * or filling the last byte of the buffer.  (Sending extra data in
-	 * that last pckate should trigger an overflow fault.)  But in mode 1,
-	 * we don't get DMA completion interrupt for short packets.
-	 *
-	 * Theoretically, we could enable DMAReq irq (MUSB_RXCSR_DMAMODE = 1),
-	 * to get endpoint interrupt on every DMA req, but that didn't seem
-	 * to work reliably.
-	 *
-	 * REVISIT an updated g_file_storage can set req->short_not_ok, which
-	 * then becomes usable as a runtime "use mode 1" hint...
-	 */
-
 				/* Experimental: Mode1 works with mass storage use cases */
 				if (use_mode_1) {
 					csr |= MUSB_RXCSR_AUTOCLEAR;
@@ -764,35 +743,30 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 						csr | MUSB_RXCSR_DMAMODE);
 					musb_writew(epio, MUSB_RXCSR, csr);
 
+					transfer_size = min(request->length - request->actual,
+							channel->max_len);
+					musb_ep->dma->desired_mode = 1;
+
 				} else {
 					if (!musb_ep->hb_mult &&
 						musb_ep->hw_ep->rx_double_buffered)
 						csr |= MUSB_RXCSR_AUTOCLEAR;
 					csr |= MUSB_RXCSR_DMAENAB;
 					musb_writew(epio, MUSB_RXCSR, csr);
-				}
 
-				if (request->actual < request->length) {
-					int transfer_size = 0;
-					if (use_mode_1) {
-						transfer_size = min(request->length - request->actual,
-								channel->max_len);
-						musb_ep->dma->desired_mode = 1;
-					} else {
-						transfer_size = min(request->length - request->actual,
-								(unsigned)len);
-						musb_ep->dma->desired_mode = 0;
-					}
-
-					use_dma = c->channel_program(
-							channel,
-							musb_ep->packet_sz,
-							channel->desired_mode,
-							request->dma
-							+ request->actual,
-							transfer_size);
+					transfer_size = min(request->length - request->actual,
+							(unsigned)fifo_count);
+					musb_ep->dma->desired_mode = 0;
 				}
 
+				use_dma = c->channel_program(
+						channel,
+						musb_ep->packet_sz,
+						channel->desired_mode,
+						request->dma
+						+ request->actual,
+						transfer_size);
+
 				if (use_dma)
 					return;
 			}
@@ -808,8 +782,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 				channel = musb_ep->dma;
 
 				/* In case first packet is short */
-				if (len < musb_ep->packet_sz)
-					transfer_size = len;
+				if (fifo_count < musb_ep->packet_sz)
+					transfer_size = fifo_count;
 				else if (request->short_not_ok)
 					transfer_size =	min(request->length -
 							request->actual,
@@ -817,7 +791,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 				else
 					transfer_size = min(request->length -
 							request->actual,
-							(unsigned)len);
+							(unsigned)fifo_count);
 
 				csr &= ~MUSB_RXCSR_DMAMODE;
 				csr |= (MUSB_RXCSR_DMAENAB |
@@ -845,10 +819,10 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 			}
 #endif	/* Mentor's DMA */
 
-			fifo_count = request->length - request->actual;
+			len = request->length - request->actual;
 			dev_dbg(musb->controller, "%s OUT/RX pio fifo %d/%d, maxpacket %d\n",
 					musb_ep->end_point.name,
-					len, fifo_count,
+					fifo_count, len,
 					musb_ep->packet_sz);
 
 			fifo_count = min_t(unsigned, len, fifo_count);
@@ -901,7 +875,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 	}
 
 	/* reach the end or short packet detected */
-	if (request->actual == request->length || len < musb_ep->packet_sz)
+	if (request->actual == request->length ||
+	    fifo_count < musb_ep->packet_sz)
 		musb_g_giveback(musb_ep, request, 0);
 }
 
@@ -1885,8 +1860,7 @@ int __devinit musb_gadget_setup(struct musb *musb)
 	musb->g.dev.release = musb_gadget_release;
 	musb->g.name = musb_driver_name;
 
-	if (is_otg_enabled(musb))
-		musb->g.is_otg = 1;
+	musb->g.is_otg = 1;
 
 	musb_g_init_endpoints(musb);
 
@@ -1932,11 +1906,14 @@ static int musb_gadget_start(struct usb_gadget *g,
 {
 	struct musb		*musb = gadget_to_musb(g);
 	struct usb_otg		*otg = musb->xceiv->otg;
+	struct usb_hcd		*hcd = musb_to_hcd(musb);
 	unsigned long		flags;
-	int			retval = -EINVAL;
+	int			retval = 0;
 
-	if (driver->max_speed < USB_SPEED_HIGH)
-		goto err0;
+	if (driver->max_speed < USB_SPEED_HIGH) {
+		retval = -EINVAL;
+		goto err;
+	}
 
 	pm_runtime_get_sync(musb->controller);
 
@@ -1950,49 +1927,30 @@ static int musb_gadget_start(struct usb_gadget *g,
 
 	otg_set_peripheral(otg, &musb->g);
 	musb->xceiv->state = OTG_STATE_B_IDLE;
-
-	/*
-	 * FIXME this ignores the softconnect flag.  Drivers are
-	 * allowed hold the peripheral inactive until for example
-	 * userspace hooks up printer hardware or DSP codecs, so
-	 * hosts only see fully functional devices.
-	 */
-
-	if (!is_otg_enabled(musb))
-		musb_start(musb);
-
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-	if (is_otg_enabled(musb)) {
-		struct usb_hcd	*hcd = musb_to_hcd(musb);
-
-		dev_dbg(musb->controller, "OTG startup...\n");
+	/* REVISIT:  funcall to other code, which also
+	 * handles power budgeting ... this way also
+	 * ensures HdrcStart is indirectly called.
+	 */
+	retval = usb_add_hcd(hcd, 0, 0);
+	if (retval < 0) {
+		dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
+		goto err;
+	}
 
-		/* REVISIT:  funcall to other code, which also
-		 * handles power budgeting ... this way also
-		 * ensures HdrcStart is indirectly called.
-		 */
-		retval = usb_add_hcd(musb_to_hcd(musb), 0, 0);
-		if (retval < 0) {
-			dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
-			goto err2;
-		}
+	if ((musb->xceiv->last_event == USB_EVENT_ID)
+				&& otg->set_vbus)
+		otg_set_vbus(otg, 1);
 
-		if ((musb->xceiv->last_event == USB_EVENT_ID)
-					&& otg->set_vbus)
-			otg_set_vbus(otg, 1);
+	hcd->self.uses_pio_for_control = 1;
 
-		hcd->self.uses_pio_for_control = 1;
-	}
 	if (musb->xceiv->last_event == USB_EVENT_NONE)
 		pm_runtime_put(musb->controller);
 
 	return 0;
 
-err2:
-	if (!is_otg_enabled(musb))
-		musb_stop(musb);
-err0:
+err:
 	return retval;
 }
 
@@ -2070,16 +2028,12 @@ static int musb_gadget_stop(struct usb_gadget *g,
 	musb_platform_try_idle(musb, 0);
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-	if (is_otg_enabled(musb)) {
-		usb_remove_hcd(musb_to_hcd(musb));
-		/* FIXME we need to be able to register another
-		 * gadget driver here and have everything work;
-		 * that currently misbehaves.
-		 */
-	}
-
-	if (!is_otg_enabled(musb))
-		musb_stop(musb);
+	usb_remove_hcd(musb_to_hcd(musb));
+	/*
+	 * FIXME we need to be able to register another
+	 * gadget driver here and have everything work;
+	 * that currently misbehaves.
+	 */
 
 	pm_runtime_put(musb->controller);
 
@@ -2241,13 +2195,11 @@ __acquires(musb->lock)
 	if (devctl & MUSB_DEVCTL_BDEVICE) {
 		musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
 		musb->g.is_a_peripheral = 0;
-	} else if (is_otg_enabled(musb)) {
+	} else {
 		musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
 		musb->g.is_a_peripheral = 1;
-	} else
-		WARN_ON(1);
+	}
 
 	/* start with default limits on VBUS power draw */
-	(void) musb_gadget_vbus_draw(&musb->g,
-			is_otg_enabled(musb) ? 8 : 100);
+	(void) musb_gadget_vbus_draw(&musb->g, 8);
 }
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 4bb717d0bd4..3df6a76b851 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -693,6 +693,8 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 	void __iomem		*epio = hw_ep->regs;
 	struct musb_qh		*qh = musb_ep_get_qh(hw_ep, !is_out);
 	u16			packet_sz = qh->maxpacket;
+	u8			use_dma = 1;
+	u16			csr;
 
 	dev_dbg(musb->controller, "%s hw%d urb %p spd%d dev%d ep%d%s "
 				"h_addr%02x h_port%02x bytes %d\n",
@@ -704,9 +706,17 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 
 	musb_ep_select(mbase, epnum);
 
+	if (is_out && !len) {
+		use_dma = 0;
+		csr = musb_readw(epio, MUSB_TXCSR);
+		csr &= ~MUSB_TXCSR_DMAENAB;
+		musb_writew(epio, MUSB_TXCSR, csr);
+		hw_ep->tx_channel = NULL;
+	}
+
 	/* candidate for DMA? */
 	dma_controller = musb->dma_controller;
-	if (is_dma_capable() && epnum && dma_controller) {
+	if (use_dma && is_dma_capable() && epnum && dma_controller) {
 		dma_channel = is_out ? hw_ep->tx_channel : hw_ep->rx_channel;
 		if (!dma_channel) {
 			dma_channel = dma_controller->channel_alloc(
@@ -813,9 +823,28 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 		if (load_count) {
 			/* PIO to load FIFO */
 			qh->segsize = load_count;
-			musb_write_fifo(hw_ep, load_count, buf);
+			if (!buf) {
+				sg_miter_start(&qh->sg_miter, urb->sg, 1,
+						SG_MITER_ATOMIC
+						| SG_MITER_FROM_SG);
+				if (!sg_miter_next(&qh->sg_miter)) {
+					dev_err(musb->controller,
+							"error: sg"
+							"list empty\n");
+					sg_miter_stop(&qh->sg_miter);
+					goto finish;
+				}
+				buf = qh->sg_miter.addr + urb->sg->offset +
+					urb->actual_length;
+				load_count = min_t(u32, load_count,
+						qh->sg_miter.length);
+				musb_write_fifo(hw_ep, load_count, buf);
+				qh->sg_miter.consumed = load_count;
+				sg_miter_stop(&qh->sg_miter);
+			} else
+				musb_write_fifo(hw_ep, load_count, buf);
 		}
-
+finish:
 		/* re-enable interrupt */
 		musb_writew(mbase, MUSB_INTRTXE, int_txe);
 
@@ -882,6 +911,73 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
 	}
 }
 
+/* Schedule next QH from musb->in_bulk/out_bulk and move the current qh to
+ * the end; avoids starvation for other endpoints.
+ */
+static void musb_bulk_nak_timeout(struct musb *musb, struct musb_hw_ep *ep,
+	int is_in)
+{
+	struct dma_channel	*dma;
+	struct urb		*urb;
+	void __iomem		*mbase = musb->mregs;
+	void __iomem		*epio = ep->regs;
+	struct musb_qh		*cur_qh, *next_qh;
+	u16			rx_csr, tx_csr;
+
+	musb_ep_select(mbase, ep->epnum);
+	if (is_in) {
+		dma = is_dma_capable() ? ep->rx_channel : NULL;
+
+		/* clear nak timeout bit */
+		rx_csr = musb_readw(epio, MUSB_RXCSR);
+		rx_csr |= MUSB_RXCSR_H_WZC_BITS;
+		rx_csr &= ~MUSB_RXCSR_DATAERROR;
+		musb_writew(epio, MUSB_RXCSR, rx_csr);
+
+		cur_qh = first_qh(&musb->in_bulk);
+	} else {
+		dma = is_dma_capable() ? ep->tx_channel : NULL;
+
+		/* clear nak timeout bit */
+		tx_csr = musb_readw(epio, MUSB_TXCSR);
+		tx_csr |= MUSB_TXCSR_H_WZC_BITS;
+		tx_csr &= ~MUSB_TXCSR_H_NAKTIMEOUT;
+		musb_writew(epio, MUSB_TXCSR, tx_csr);
+
+		cur_qh = first_qh(&musb->out_bulk);
+	}
+	if (cur_qh) {
+		urb = next_urb(cur_qh);
+		if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
+			dma->status = MUSB_DMA_STATUS_CORE_ABORT;
+			musb->dma_controller->channel_abort(dma);
+			urb->actual_length += dma->actual_len;
+			dma->actual_len = 0L;
+		}
+		musb_save_toggle(cur_qh, is_in, urb);
+
+		if (is_in) {
+			/* move cur_qh to end of queue */
+			list_move_tail(&cur_qh->ring, &musb->in_bulk);
+
+			/* get the next qh from musb->in_bulk */
+			next_qh = first_qh(&musb->in_bulk);
+
+			/* set rx_reinit and schedule the next qh */
+			ep->rx_reinit = 1;
+		} else {
+			/* move cur_qh to end of queue */
+			list_move_tail(&cur_qh->ring, &musb->out_bulk);
+
+			/* get the next qh from musb->out_bulk */
+			next_qh = first_qh(&musb->out_bulk);
+
+			/* set tx_reinit and schedule the next qh */
+			ep->tx_reinit = 1;
+		}
+		musb_start_urb(musb, is_in, next_qh);
+	}
+}
 
 /*
  * Service the default endpoint (ep0) as host.
@@ -1116,6 +1212,7 @@ void musb_host_tx(struct musb *musb, u8 epnum)
 	void __iomem		*mbase = musb->mregs;
 	struct dma_channel	*dma;
 	bool			transfer_pending = false;
+	static bool use_sg;
 
 	musb_ep_select(mbase, epnum);
 	tx_csr = musb_readw(epio, MUSB_TXCSR);
@@ -1146,23 +1243,31 @@ void musb_host_tx(struct musb *musb, u8 epnum)
 		status = -ETIMEDOUT;
 
 	} else if (tx_csr & MUSB_TXCSR_H_NAKTIMEOUT) {
-		dev_dbg(musb->controller, "TX end=%d device not responding\n", epnum);
-
-		/* NOTE:  this code path would be a good place to PAUSE a
-		 * transfer, if there's some other (nonperiodic) tx urb
-		 * that could use this fifo.  (dma complicates it...)
-		 * That's already done for bulk RX transfers.
-		 *
-		 * if (bulk && qh->ring.next != &musb->out_bulk), then
-		 * we have a candidate... NAKing is *NOT* an error
-		 */
-		musb_ep_select(mbase, epnum);
-		musb_writew(epio, MUSB_TXCSR,
-				MUSB_TXCSR_H_WZC_BITS
-				| MUSB_TXCSR_TXPKTRDY);
-		return;
+		if (USB_ENDPOINT_XFER_BULK == qh->type && qh->mux == 1
+				&& !list_is_singular(&musb->out_bulk)) {
+			dev_dbg(musb->controller,
+				"NAK timeout on TX%d ep\n", epnum);
+			musb_bulk_nak_timeout(musb, hw_ep, 0);
+		} else {
+			dev_dbg(musb->controller,
+				"TX end=%d device not responding\n", epnum);
+			/* NOTE:  this code path would be a good place to PAUSE a
+			 * transfer, if there's some other (nonperiodic) tx urb
+			 * that could use this fifo.  (dma complicates it...)
+			 * That's already done for bulk RX transfers.
+			 *
+			 * if (bulk && qh->ring.next != &musb->out_bulk), then
+			 * we have a candidate... NAKing is *NOT* an error
+			 */
+			musb_ep_select(mbase, epnum);
+			musb_writew(epio, MUSB_TXCSR,
+					MUSB_TXCSR_H_WZC_BITS
+					| MUSB_TXCSR_TXPKTRDY);
+		}
+			return;
 	}
 
+done:
 	if (status) {
 		if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
 			dma->status = MUSB_DMA_STATUS_CORE_ABORT;
@@ -1332,9 +1437,38 @@ void musb_host_tx(struct musb *musb, u8 epnum)
 		length = qh->maxpacket;
 	/* Unmap the buffer so that CPU can use it */
 	usb_hcd_unmap_urb_for_dma(musb_to_hcd(musb), urb);
-	musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset);
+
+	/*
+	 * We need to map sg if the transfer_buffer is
+	 * NULL.
+	 */
+	if (!urb->transfer_buffer)
+		use_sg = true;
+
+	if (use_sg) {
+		/* sg_miter_start is already done in musb_ep_program */
+		if (!sg_miter_next(&qh->sg_miter)) {
+			dev_err(musb->controller, "error: sg list empty\n");
+			sg_miter_stop(&qh->sg_miter);
+			status = -EINVAL;
+			goto done;
+		}
+		urb->transfer_buffer = qh->sg_miter.addr;
+		length = min_t(u32, length, qh->sg_miter.length);
+		musb_write_fifo(hw_ep, length, urb->transfer_buffer);
+		qh->sg_miter.consumed = length;
+		sg_miter_stop(&qh->sg_miter);
+	} else {
+		musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset);
+	}
+
 	qh->segsize = length;
 
+	if (use_sg) {
+		if (offset + length >= urb->transfer_buffer_length)
+			use_sg = false;
+	}
+
 	musb_ep_select(mbase, epnum);
 	musb_writew(epio, MUSB_TXCSR,
 			MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
@@ -1380,50 +1514,6 @@ void musb_host_tx(struct musb *musb, u8 epnum)
 
 #endif
 
-/* Schedule next QH from musb->in_bulk and move the current qh to
- * the end; avoids starvation for other endpoints.
- */
-static void musb_bulk_rx_nak_timeout(struct musb *musb, struct musb_hw_ep *ep)
-{
-	struct dma_channel	*dma;
-	struct urb		*urb;
-	void __iomem		*mbase = musb->mregs;
-	void __iomem		*epio = ep->regs;
-	struct musb_qh		*cur_qh, *next_qh;
-	u16			rx_csr;
-
-	musb_ep_select(mbase, ep->epnum);
-	dma = is_dma_capable() ? ep->rx_channel : NULL;
-
-	/* clear nak timeout bit */
-	rx_csr = musb_readw(epio, MUSB_RXCSR);
-	rx_csr |= MUSB_RXCSR_H_WZC_BITS;
-	rx_csr &= ~MUSB_RXCSR_DATAERROR;
-	musb_writew(epio, MUSB_RXCSR, rx_csr);
-
-	cur_qh = first_qh(&musb->in_bulk);
-	if (cur_qh) {
-		urb = next_urb(cur_qh);
-		if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
-			dma->status = MUSB_DMA_STATUS_CORE_ABORT;
-			musb->dma_controller->channel_abort(dma);
-			urb->actual_length += dma->actual_len;
-			dma->actual_len = 0L;
-		}
-		musb_save_toggle(cur_qh, 1, urb);
-
-		/* move cur_qh to end of queue */
-		list_move_tail(&cur_qh->ring, &musb->in_bulk);
-
-		/* get the next qh from musb->in_bulk */
-		next_qh = first_qh(&musb->in_bulk);
-
-		/* set rx_reinit and schedule the next qh */
-		ep->rx_reinit = 1;
-		musb_start_urb(musb, 1, next_qh);
-	}
-}
-
 /*
  * Service an RX interrupt for the given IN endpoint; docs cover bulk, iso,
  * and high-bandwidth IN transfer cases.
@@ -1442,6 +1532,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 	bool			done = false;
 	u32			status;
 	struct dma_channel	*dma;
+	static bool use_sg;
+	unsigned int sg_flags = SG_MITER_ATOMIC | SG_MITER_TO_SG;
 
 	musb_ep_select(mbase, epnum);
 
@@ -1500,7 +1592,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 			if (usb_pipebulk(urb->pipe)
 					&& qh->mux == 1
 					&& !list_is_singular(&musb->in_bulk)) {
-				musb_bulk_rx_nak_timeout(musb, hw_ep);
+				musb_bulk_nak_timeout(musb, hw_ep, 1);
 				return;
 			}
 			musb_ep_select(mbase, epnum);
@@ -1756,10 +1848,43 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 #endif	/* Mentor DMA */
 
 		if (!dma) {
+			unsigned int received_len;
+
 			/* Unmap the buffer so that CPU can use it */
 			usb_hcd_unmap_urb_for_dma(musb_to_hcd(musb), urb);
-			done = musb_host_packet_rx(musb, urb,
-					epnum, iso_err);
+
+			/*
+			 * We need to map sg if the transfer_buffer is
+			 * NULL.
+			 */
+			if (!urb->transfer_buffer) {
+				use_sg = true;
+				sg_miter_start(&qh->sg_miter, urb->sg, 1,
+						sg_flags);
+			}
+
+			if (use_sg) {
+				if (!sg_miter_next(&qh->sg_miter)) {
+					dev_err(musb->controller, "error: sg list empty\n");
+					sg_miter_stop(&qh->sg_miter);
+					status = -EINVAL;
+					done = true;
+					goto finish;
+				}
+				urb->transfer_buffer = qh->sg_miter.addr;
+				received_len = urb->actual_length;
+				qh->offset = 0x0;
+				done = musb_host_packet_rx(musb, urb, epnum,
+						iso_err);
+				/* Calculate the number of bytes received */
+				received_len = urb->actual_length -
+					received_len;
+				qh->sg_miter.consumed = received_len;
+				sg_miter_stop(&qh->sg_miter);
+			} else {
+				done = musb_host_packet_rx(musb, urb,
+						epnum, iso_err);
+			}
 			dev_dbg(musb->controller, "read %spacket\n", done ? "last " : "");
 		}
 	}
@@ -1768,6 +1893,9 @@ finish:
 	urb->actual_length += xfer_len;
 	qh->offset += xfer_len;
 	if (done) {
+		if (use_sg)
+			use_sg = false;
+
 		if (urb->status == -EINPROGRESS)
 			urb->status = status;
 		musb_advance_schedule(musb, urb, hw_ep, USB_DIR_IN);
@@ -1863,14 +1991,14 @@ static int musb_schedule(
 		else
 			head = &musb->out_bulk;
 
-		/* Enable bulk RX NAK timeout scheme when bulk requests are
+		/* Enable bulk RX/TX NAK timeout scheme when bulk requests are
 		 * multiplexed.  This scheme doen't work in high speed to full
 		 * speed scenario as NAK interrupts are not coming from a
 		 * full speed device connected to a high speed device.
 		 * NAK timeout interval is 8 (128 uframe or 16ms) for HS and
 		 * 4 (8 frame or 8ms) for FS device.
 		 */
-		if (is_in && qh->dev)
+		if (qh->dev)
 			qh->intv_reg =
 				(USB_SPEED_HIGH == qh->dev->speed) ? 8 : 4;
 		goto success;
@@ -2049,7 +2177,7 @@ static int musb_urb_enqueue(
 	 * we only have work to do in the former case.
 	 */
 	spin_lock_irqsave(&musb->lock, flags);
-	if (hep->hcpriv) {
+	if (hep->hcpriv || !next_urb(qh)) {
 		/* some concurrent activity submitted another urb to hep...
 		 * odd, rare, error prone, but legal.
 		 */
diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
index 622d09fb9ab..5a9c8feec10 100644
--- a/drivers/usb/musb/musb_host.h
+++ b/drivers/usb/musb/musb_host.h
@@ -35,6 +35,8 @@
 #ifndef _MUSB_HOST_H
 #define _MUSB_HOST_H
 
+#include <linux/scatterlist.h>
+
 static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
 {
 	return container_of((void *) musb, struct usb_hcd, hcd_priv);
@@ -71,6 +73,7 @@ struct musb_qh {
 	u16			maxpacket;
 	u16			frame;		/* for periodic schedule */
 	unsigned		iso_idx;	/* in urb->iso_frame_desc[] */
+	struct sg_mapping_iter sg_miter;	/* for highmem in PIO mode */
 };
 
 /* map from control or bulk queue head to the first qh on that ring */
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 22ec3e37998..f70579154de 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -81,8 +81,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
 		switch (musb->xceiv->state) {
 		case OTG_STATE_A_HOST:
 			musb->xceiv->state = OTG_STATE_A_SUSPEND;
-			musb->is_active = is_otg_enabled(musb)
-					&& otg->host->b_hnp_enable;
+			musb->is_active = otg->host->b_hnp_enable;
 			if (musb->is_active)
 				mod_timer(&musb->otg_timer, jiffies
 					+ msecs_to_jiffies(
@@ -91,8 +90,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
 			break;
 		case OTG_STATE_B_HOST:
 			musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
-			musb->is_active = is_otg_enabled(musb)
-					&& otg->host->b_hnp_enable;
+			musb->is_active = otg->host->b_hnp_enable;
 			musb_platform_try_idle(musb, 0);
 			break;
 		default:
@@ -190,8 +188,7 @@ void musb_root_disconnect(struct musb *musb)
 
 	switch (musb->xceiv->state) {
 	case OTG_STATE_A_SUSPEND:
-		if (is_otg_enabled(musb)
-				&& otg->host->b_hnp_enable) {
+		if (otg->host->b_hnp_enable) {
 			musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
 			musb->g.is_a_peripheral = 1;
 			break;
@@ -273,7 +270,7 @@ int musb_hub_control(
 			musb_port_suspend(musb, false);
 			break;
 		case USB_PORT_FEAT_POWER:
-			if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
+			if (!hcd->self.is_b_host)
 				musb_platform_set_vbus(musb, 0);
 			break;
 		case USB_PORT_FEAT_C_CONNECTION:
@@ -369,7 +366,7 @@ int musb_hub_control(
 			 * initialization logic, e.g. for OTG, or change any
 			 * logic relating to VBUS power-up.
 			 */
-			if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
+			if (!hcd->self.is_b_host)
 				musb_start(musb);
 			break;
 		case USB_PORT_FEAT_RESET:
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 57a608584e1..0fc6ca6bc60 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -380,7 +380,7 @@ void dma_controller_destroy(struct dma_controller *c)
 	kfree(controller);
 }
 
-struct dma_controller *__init
+struct dma_controller *__devinit
 dma_controller_create(struct musb *musb, void __iomem *base)
 {
 	struct musb_dma_controller *controller;
@@ -388,7 +388,7 @@ dma_controller_create(struct musb *musb, void __iomem *base)
 	struct platform_device *pdev = to_platform_device(dev);
 	int irq = platform_get_irq_byname(pdev, "dma");
 
-	if (irq == 0) {
+	if (irq <= 0) {
 		dev_err(dev, "No DMA interrupt line!\n");
 		return NULL;
 	}
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da8dd5..a538fe17a96 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,10 +30,12 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/pm_runtime.h>
 #include <linux/err.h>
+#include <linux/delay.h>
 #include <linux/usb/musb-omap.h>
 
 #include "musb_core.h"
@@ -44,6 +46,7 @@ struct omap2430_glue {
 	struct platform_device	*musb;
 	enum omap_musb_vbus_id_status status;
 	struct work_struct	omap_musb_mailbox_work;
+	u32 __iomem		*control_otghs;
 };
 #define glue_to_musb(g)		platform_get_drvdata(g->musb)
 
@@ -51,6 +54,26 @@ struct omap2430_glue		*_glue;
 
 static struct timer_list musb_idle_timer;
 
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+	if (glue->control_otghs)
+		writel(val, glue->control_otghs);
+}
+
 static void musb_do_idle(unsigned long _musb)
 {
 	struct musb	*musb = (void *)_musb;
@@ -140,7 +163,6 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
 	struct usb_otg	*otg = musb->xceiv->otg;
 	u8		devctl;
 	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
-	int ret = 1;
 	/* HDRC controls CPEN, but beware current surges during device
 	 * connect.  They can trigger transient overcurrent conditions
 	 * that must be ignored.
@@ -150,6 +172,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
 
 	if (is_on) {
 		if (musb->xceiv->state == OTG_STATE_A_IDLE) {
+			int loops = 100;
 			/* start the session */
 			devctl |= MUSB_DEVCTL_SESSION;
 			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
@@ -159,17 +182,18 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
 			 */
 			while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {
 
+				mdelay(5);
 				cpu_relax();
 
-				if (time_after(jiffies, timeout)) {
+				if (time_after(jiffies, timeout)
+				    || loops-- <= 0) {
 					dev_err(musb->controller,
 					"configured as A device timeout");
-					ret = -EINVAL;
 					break;
 				}
 			}
 
-			if (ret && otg->set_vbus)
+			if (otg->set_vbus)
 				otg_set_vbus(otg, 1);
 		} else {
 			musb->is_active = 1;
@@ -245,6 +269,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
 
 static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 {
+	u32 val;
 	struct musb *musb = glue_to_musb(glue);
 	struct device *dev = musb->controller;
 	struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -258,9 +283,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		otg->default_a = true;
 		musb->xceiv->state = OTG_STATE_A_IDLE;
 		musb->xceiv->last_event = USB_EVENT_ID;
-		if (!is_otg_enabled(musb) || musb->gadget_driver) {
+		if (musb->gadget_driver) {
 			pm_runtime_get_sync(dev);
-			usb_phy_init(musb->xceiv);
+			val = AVALID | VBUSVALID;
+			omap4_usb_phy_mailbox(glue, val);
 			omap2430_musb_set_vbus(musb, 1);
 		}
 		break;
@@ -273,7 +299,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		musb->xceiv->last_event = USB_EVENT_VBUS;
 		if (musb->gadget_driver)
 			pm_runtime_get_sync(dev);
-		usb_phy_init(musb->xceiv);
+		val = IDDIG | AVALID | VBUSVALID;
+		omap4_usb_phy_mailbox(glue, val);
 		break;
 
 	case OMAP_MUSB_ID_FLOAT:
@@ -281,17 +308,17 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		dev_dbg(dev, "VBUS Disconnect\n");
 
 		musb->xceiv->last_event = USB_EVENT_NONE;
-		if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
-			if (musb->gadget_driver) {
-				pm_runtime_mark_last_busy(dev);
-				pm_runtime_put_autosuspend(dev);
-			}
+		if (musb->gadget_driver) {
+			pm_runtime_mark_last_busy(dev);
+			pm_runtime_put_autosuspend(dev);
+		}
 
 		if (data->interface_type == MUSB_INTERFACE_UTMI) {
 			if (musb->xceiv->otg->set_vbus)
 				otg_set_vbus(musb->xceiv->otg, 0);
 		}
-		usb_phy_shutdown(musb->xceiv);
+		val = SESSEND | IDDIG;
+		omap4_usb_phy_mailbox(glue, val);
 		break;
 	default:
 		dev_dbg(dev, "ID float\n");
@@ -366,6 +393,7 @@ err1:
 static void omap2430_musb_enable(struct musb *musb)
 {
 	u8		devctl;
+	u32		val;
 	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
 	struct device *dev = musb->controller;
 	struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +403,8 @@ static void omap2430_musb_enable(struct musb *musb)
 	switch (glue->status) {
 
 	case OMAP_MUSB_ID_GROUND:
-		usb_phy_init(musb->xceiv);
+		val = AVALID | VBUSVALID;
+		omap4_usb_phy_mailbox(glue, val);
 		if (data->interface_type != MUSB_INTERFACE_UTMI)
 			break;
 		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +423,8 @@ static void omap2430_musb_enable(struct musb *musb)
 		break;
 
 	case OMAP_MUSB_VBUS_VALID:
-		usb_phy_init(musb->xceiv);
+		val = IDDIG | AVALID | VBUSVALID;
+		omap4_usb_phy_mailbox(glue, val);
 		break;
 
 	default:
@@ -404,11 +434,14 @@ static void omap2430_musb_enable(struct musb *musb)
 
 static void omap2430_musb_disable(struct musb *musb)
 {
+	u32 val;
 	struct device *dev = musb->controller;
 	struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
 
-	if (glue->status != OMAP_MUSB_UNKNOWN)
-		usb_phy_shutdown(musb->xceiv);
+	if (glue->status != OMAP_MUSB_UNKNOWN) {
+		val = SESSEND | IDDIG;
+		omap4_usb_phy_mailbox(glue, val);
+	}
 }
 
 static int omap2430_musb_exit(struct musb *musb)
@@ -438,9 +471,14 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
 static int __devinit omap2430_probe(struct platform_device *pdev)
 {
 	struct musb_hdrc_platform_data	*pdata = pdev->dev.platform_data;
+	struct omap_musb_board_data	*data;
 	struct platform_device		*musb;
 	struct omap2430_glue		*glue;
+	struct device_node		*np = pdev->dev.of_node;
+	struct musb_hdrc_config		*config;
+	struct resource			*res;
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -448,12 +486,21 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err0;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err0;
+		goto err1;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &omap2430_dmamask;
 	musb->dev.coherent_dma_mask	= omap2430_dmamask;
@@ -462,6 +509,48 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
 	glue->musb			= musb;
 	glue->status			= OMAP_MUSB_UNKNOWN;
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+
+	glue->control_otghs = devm_request_and_ioremap(&pdev->dev, res);
+	if (glue->control_otghs == NULL)
+		dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+
+	if (np) {
+		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+		if (!pdata) {
+			dev_err(&pdev->dev,
+				"failed to allocate musb platfrom data\n");
+			ret = -ENOMEM;
+			goto err1;
+		}
+
+		data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+		if (!data) {
+			dev_err(&pdev->dev,
+					"failed to allocate musb board data\n");
+			ret = -ENOMEM;
+			goto err1;
+		}
+
+		config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+		if (!data) {
+			dev_err(&pdev->dev,
+				"failed to allocate musb hdrc config\n");
+			goto err1;
+		}
+
+		of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+		of_property_read_u32(np, "interface_type",
+						(u32 *)&data->interface_type);
+		of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+		of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+		of_property_read_u32(np, "power", (u32 *)&pdata->power);
+		config->multipoint = of_property_read_bool(np, "multipoint");
+
+		pdata->board_data	= data;
+		pdata->config		= config;
+	}
+
 	pdata->platform_ops		= &omap2430_ops;
 
 	platform_set_drvdata(pdev, glue);
@@ -478,13 +567,13 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err1;
+		goto err2;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err1;
+		goto err2;
 	}
 
 	pm_runtime_enable(&pdev->dev);
@@ -492,14 +581,17 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err1;
+		goto err2;
 	}
 
 	return 0;
 
-err1:
+err2:
 	platform_device_put(musb);
 
+err1:
+	musb_put_id(&pdev->dev, musbid);
+
 err0:
 	return ret;
 }
@@ -509,8 +601,8 @@ static int __devexit omap2430_remove(struct platform_device *pdev)
 	struct omap2430_glue		*glue = platform_get_drvdata(pdev);
 
 	cancel_work_sync(&glue->omap_musb_mailbox_work);
-	platform_device_del(glue->musb);
-	platform_device_put(glue->musb);
+	musb_put_id(&pdev->dev, glue->musb->id);
+	platform_device_unregister(glue->musb);
 
 	return 0;
 }
@@ -559,12 +651,26 @@ static struct dev_pm_ops omap2430_pm_ops = {
 #define DEV_PM_OPS	NULL
 #endif
 
+#ifdef CONFIG_OF
+static const struct of_device_id omap2430_id_table[] = {
+	{
+		.compatible = "ti,omap4-musb"
+	},
+	{
+		.compatible = "ti,omap3-musb"
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, omap2430_id_table);
+#endif
+
 static struct platform_driver omap2430_driver = {
 	.probe		= omap2430_probe,
 	.remove		= __devexit_p(omap2430_remove),
 	.driver		= {
 		.name	= "musb-omap2430",
 		.pm	= DEV_PM_OPS,
+		.of_match_table = of_match_ptr(omap2430_id_table),
 	},
 };
 
diff --git a/drivers/usb/musb/omap2430.h b/drivers/usb/musb/omap2430.h
index 40b3c02ae9f..b85f3973e78 100644
--- a/drivers/usb/musb/omap2430.h
+++ b/drivers/usb/musb/omap2430.h
@@ -49,4 +49,13 @@
 #define OTG_FORCESTDBY		0x414
 #	define	ENABLEFORCE		(1 << 0)
 
+/*
+ * Control Module bit definitions
+ * XXX: Will be removed once we have a driver for control module.
+ */
+#define	AVALID				BIT(0)
+#define	BVALID				BIT(1)
+#define	VBUSVALID			BIT(2)
+#define	SESSEND				BIT(3)
+#define	IDDIG				BIT(4)
 #endif	/* __MUSB_OMAP243X_H__ */
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 1a1bd9cf40c..dc4d75ea13a 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb/nop-usb-xceiv.h>
 
 #include "musb_core.h"
 
@@ -153,7 +154,7 @@ tusb_fifo_write_unaligned(void __iomem *fifo, const u8 *buf, u16 len)
 }
 
 static inline void tusb_fifo_read_unaligned(void __iomem *fifo,
-						void __iomem *buf, u16 len)
+						void *buf, u16 len)
 {
 	u32		val;
 	int		i;
@@ -437,14 +438,13 @@ static void musb_do_idle(unsigned long _musb)
 		if (is_host_active(musb) && (musb->port1_status >> 16))
 			goto done;
 
-		if (is_peripheral_enabled(musb) && !musb->gadget_driver) {
+		if (!musb->gadget_driver) {
 			wakeups = 0;
 		} else {
 			wakeups = TUSB_PRCM_WHOSTDISCON
 				| TUSB_PRCM_WBUS
 					| TUSB_PRCM_WVBUS;
-			if (is_otg_enabled(musb))
-				wakeups |= TUSB_PRCM_WID;
+			wakeups |= TUSB_PRCM_WID;
 		}
 		tusb_allow_idle(musb, wakeups);
 	}
@@ -582,21 +582,12 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
  *
  * Note that if a mini-A cable is plugged in the ID line will stay down as
  * the weak ID pull-up is not able to pull the ID up.
- *
- * REVISIT: It would be possible to add support for changing between host
- * and peripheral modes in non-OTG configurations by reconfiguring hardware
- * and then setting musb->board_mode. For now, only support OTG mode.
  */
 static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)
 {
 	void __iomem	*tbase = musb->ctrl_base;
 	u32		otg_stat, phy_otg_ctrl, phy_otg_ena, dev_conf;
 
-	if (musb->board_mode != MUSB_OTG) {
-		ERR("Changing mode currently only supported in OTG mode\n");
-		return -EINVAL;
-	}
-
 	otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
 	phy_otg_ctrl = musb_readl(tbase, TUSB_PHY_OTG_CTRL);
 	phy_otg_ena = musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE);
@@ -652,10 +643,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
 	if ((int_src & TUSB_INT_SRC_ID_STATUS_CHNG)) {
 		int	default_a;
 
-		if (is_otg_enabled(musb))
-			default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
-		else
-			default_a = is_host_enabled(musb);
+		default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
 		dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');
 		otg->default_a = default_a;
 		tusb_musb_set_vbus(musb, default_a);
@@ -669,8 +657,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
 	if (int_src & TUSB_INT_SRC_VBUS_SENSE_CHNG) {
 
 		/* B-dev state machine:  no vbus ~= disconnect */
-		if ((is_otg_enabled(musb) && !otg->default_a)
-				|| !is_host_enabled(musb)) {
+		if (!otg->default_a) {
 			/* ? musb_root_disconnect(musb); */
 			musb->port1_status &=
 				~(USB_PORT_STAT_CONNECTION
@@ -1119,10 +1106,8 @@ static int tusb_musb_init(struct musb *musb)
 	}
 	musb->isr = tusb_musb_interrupt;
 
-	if (is_peripheral_enabled(musb)) {
-		musb->xceiv->set_power = tusb_draw_power;
-		the_musb = musb;
-	}
+	musb->xceiv->set_power = tusb_draw_power;
+	the_musb = musb;
 
 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
 
@@ -1175,6 +1160,7 @@ static int __devinit tusb_probe(struct platform_device *pdev)
 	struct tusb6010_glue		*glue;
 
 	int				ret = -ENOMEM;
+	int				musbid;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
 	if (!glue) {
@@ -1182,12 +1168,21 @@ static int __devinit tusb_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= &tusb_dmamask;
 	musb->dev.coherent_dma_mask	= tusb_dmamask;
@@ -1203,26 +1198,29 @@ static int __devinit tusb_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err2;
+		goto err3;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err2;
+		goto err3;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err1;
+		goto err3;
 	}
 
 	return 0;
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -1234,6 +1232,7 @@ static int __devexit tusb_remove(struct platform_device *pdev)
 {
 	struct tusb6010_glue		*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	kfree(glue);
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index b67b4bc596c..7a62b95dac2 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -17,7 +17,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
 #include <plat/dma.h>
-#include <plat/mux.h>
 
 #include "musb_core.h"
 #include "tusb6010.h"
@@ -662,7 +661,7 @@ void dma_controller_destroy(struct dma_controller *c)
 	kfree(tusb_dma);
 }
 
-struct dma_controller *__init
+struct dma_controller *__devinit
 dma_controller_create(struct musb *musb, void __iomem *base)
 {
 	void __iomem		*tbase = musb->ctrl_base;
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index a8c0fadce1b..d62a91fedc2 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -74,25 +74,34 @@ static int __devinit ux500_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", -1);
+	/* get the musb id */
+	musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+	if (musbid < 0) {
+		dev_err(&pdev->dev, "failed to allocate musb id\n");
+		ret = -ENOMEM;
+		goto err1;
+	}
+
+	musb = platform_device_alloc("musb-hdrc", musbid);
 	if (!musb) {
 		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
+		goto err2;
 	}
 
 	clk = clk_get(&pdev->dev, "usb");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
 		ret = PTR_ERR(clk);
-		goto err2;
+		goto err3;
 	}
 
 	ret = clk_enable(clk);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable clock\n");
-		goto err3;
+		goto err4;
 	}
 
+	musb->id			= musbid;
 	musb->dev.parent		= &pdev->dev;
 	musb->dev.dma_mask		= pdev->dev.dma_mask;
 	musb->dev.coherent_dma_mask	= pdev->dev.coherent_dma_mask;
@@ -109,32 +118,35 @@ static int __devinit ux500_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err4;
+		goto err5;
 	}
 
 	ret = platform_device_add(musb);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register musb device\n");
-		goto err4;
+		goto err5;
 	}
 
 	return 0;
 
-err4:
+err5:
 	clk_disable(clk);
 
-err3:
+err4:
 	clk_put(clk);
 
-err2:
+err3:
 	platform_device_put(musb);
 
+err2:
+	musb_put_id(&pdev->dev, musbid);
+
 err1:
 	kfree(glue);
 
@@ -146,6 +158,7 @@ static int __devexit ux500_remove(struct platform_device *pdev)
 {
 	struct ux500_glue	*glue = platform_get_drvdata(pdev);
 
+	musb_put_id(&pdev->dev, glue->musb->id);
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	clk_disable(glue->clk);
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index d05c7fbbb70..f1059e725ea 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -30,7 +30,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
 #include <linux/pfn.h>
-#include <mach/usb.h>
+#include <linux/platform_data/usb-musb-ux500.h>
 #include "musb_core.h"
 
 struct ux500_dma_channel {
@@ -364,7 +364,7 @@ void dma_controller_destroy(struct dma_controller *c)
 	kfree(controller);
 }
 
-struct dma_controller *__init
+struct dma_controller *__devinit
 dma_controller_create(struct musb *musb, void __iomem *base)
 {
 	struct ux500_dma_controller *controller;
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 13fd1ddf742..d8c8a42bff3 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -68,7 +68,7 @@ config TWL4030_USB
 
 config TWL6030_USB
 	tristate "TWL6030 USB Transceiver Driver"
-	depends on TWL4030_CORE
+	depends on TWL4030_CORE && OMAP_USB2
 	select USB_OTG_UTILS
 	help
 	  Enable this to support the USB OTG transceiver on TWL6030
diff --git a/drivers/usb/otg/fsl_otg.c b/drivers/usb/otg/fsl_otg.c
index 23c798cb2d7..c19d1d7173a 100644
--- a/drivers/usb/otg/fsl_otg.c
+++ b/drivers/usb/otg/fsl_otg.c
@@ -544,9 +544,13 @@ int fsl_otg_start_gadget(struct otg_fsm *fsm, int on)
  */
 static int fsl_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
 {
-	struct fsl_otg *otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	struct fsl_otg *otg_dev;
+
+	if (!otg)
+		return -ENODEV;
 
-	if (!otg || otg_dev != fsl_otg_dev)
+	otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	if (otg_dev != fsl_otg_dev)
 		return -ENODEV;
 
 	otg->host = host;
@@ -590,12 +594,15 @@ static int fsl_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
 static int fsl_otg_set_peripheral(struct usb_otg *otg,
 					struct usb_gadget *gadget)
 {
-	struct fsl_otg *otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	struct fsl_otg *otg_dev;
 
+	if (!otg)
+		return -ENODEV;
+
+	otg_dev = container_of(otg->phy, struct fsl_otg, phy);
 	VDBG("otg_dev 0x%x\n", (int)otg_dev);
 	VDBG("fsl_otg_dev 0x%x\n", (int)fsl_otg_dev);
-
-	if (!otg || otg_dev != fsl_otg_dev)
+	if (otg_dev != fsl_otg_dev)
 		return -ENODEV;
 
 	if (!gadget) {
@@ -660,10 +667,13 @@ static void fsl_otg_event(struct work_struct *work)
 /* B-device start SRP */
 static int fsl_otg_start_srp(struct usb_otg *otg)
 {
-	struct fsl_otg *otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	struct fsl_otg *otg_dev;
+
+	if (!otg || otg->phy->state != OTG_STATE_B_IDLE)
+		return -ENODEV;
 
-	if (!otg || otg_dev != fsl_otg_dev
-	    || otg->phy->state != OTG_STATE_B_IDLE)
+	otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	if (otg_dev != fsl_otg_dev)
 		return -ENODEV;
 
 	otg_dev->fsm.b_bus_req = 1;
@@ -675,9 +685,13 @@ static int fsl_otg_start_srp(struct usb_otg *otg)
 /* A_host suspend will call this function to start hnp */
 static int fsl_otg_start_hnp(struct usb_otg *otg)
 {
-	struct fsl_otg *otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	struct fsl_otg *otg_dev;
+
+	if (!otg)
+		return -ENODEV;
 
-	if (!otg || otg_dev != fsl_otg_dev)
+	otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+	if (otg_dev != fsl_otg_dev)
 		return -ENODEV;
 
 	DBG("start_hnp...n");
diff --git a/drivers/usb/otg/isp1301_omap.c b/drivers/usb/otg/isp1301_omap.c
index 7a88667742b..ceee2119bff 100644
--- a/drivers/usb/otg/isp1301_omap.c
+++ b/drivers/usb/otg/isp1301_omap.c
@@ -36,7 +36,7 @@
 #include <asm/irq.h>
 #include <asm/mach-types.h>
 
-#include <plat/mux.h>
+#include <mach/mux.h>
 
 #include <mach/usb.h>
 
@@ -1230,7 +1230,7 @@ static int __exit isp1301_remove(struct i2c_client *i2c)
 	isp->timer.data = 0;
 	set_bit(WORK_STOP, &isp->todo);
 	del_timer_sync(&isp->timer);
-	flush_work_sync(&isp->work);
+	flush_work(&isp->work);
 
 	put_device(&i2c->dev);
 	the_transceiver = NULL;
diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c
index c1a67cb8e24..88db976647c 100644
--- a/drivers/usb/otg/mxs-phy.c
+++ b/drivers/usb/otg/mxs-phy.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/workqueue.h>
 
 #define DRIVER_NAME "mxs_phy"
 
@@ -34,9 +35,16 @@
 #define BM_USBPHY_CTRL_ENUTMILEVEL2		BIT(14)
 #define BM_USBPHY_CTRL_ENHOSTDISCONDETECT	BIT(1)
 
+/*
+ * Amount of delay in miliseconds to safely enable ENHOSTDISCONDETECT bit
+ * so that connection and reset processing can be completed for the root hub.
+ */
+#define MXY_PHY_ENHOSTDISCONDETECT_DELAY	250
+
 struct mxs_phy {
 	struct usb_phy phy;
 	struct clk *clk;
+	struct delayed_work enhostdiscondetect_work;
 };
 
 #define to_mxs_phy(p) container_of((p), struct mxs_phy, phy)
@@ -62,6 +70,7 @@ static int mxs_phy_init(struct usb_phy *phy)
 
 	clk_prepare_enable(mxs_phy->clk);
 	mxs_phy_hw_init(mxs_phy);
+	INIT_DELAYED_WORK(&mxs_phy->enhostdiscondetect_work, NULL);
 
 	return 0;
 }
@@ -76,13 +85,34 @@ static void mxs_phy_shutdown(struct usb_phy *phy)
 	clk_disable_unprepare(mxs_phy->clk);
 }
 
+static void mxs_phy_enhostdiscondetect_delay(struct work_struct *ws)
+{
+	struct mxs_phy *mxs_phy = container_of(ws, struct mxs_phy,
+						enhostdiscondetect_work.work);
+
+	/* Enable HOSTDISCONDETECT after delay. */
+	dev_dbg(mxs_phy->phy.dev, "Setting ENHOSTDISCONDETECT\n");
+	writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
+				mxs_phy->phy.io_priv + HW_USBPHY_CTRL_SET);
+}
+
 static int mxs_phy_on_connect(struct usb_phy *phy, int port)
 {
+	struct mxs_phy *mxs_phy = to_mxs_phy(phy);
+
 	dev_dbg(phy->dev, "Connect on port %d\n", port);
 
-	mxs_phy_hw_init(to_mxs_phy(phy));
-	writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
-			phy->io_priv + HW_USBPHY_CTRL_SET);
+	mxs_phy_hw_init(mxs_phy);
+
+	/*
+	 * Delay enabling ENHOSTDISCONDETECT so that connection and
+	 * reset processing can be completed for the root hub.
+	 */
+	dev_dbg(phy->dev, "Delaying setting ENHOSTDISCONDETECT\n");
+	PREPARE_DELAYED_WORK(&mxs_phy->enhostdiscondetect_work,
+			mxs_phy_enhostdiscondetect_delay);
+	schedule_delayed_work(&mxs_phy->enhostdiscondetect_work,
+			msecs_to_jiffies(MXY_PHY_ENHOSTDISCONDETECT_DELAY));
 
 	return 0;
 }
@@ -91,6 +121,8 @@ static int mxs_phy_on_disconnect(struct usb_phy *phy, int port)
 {
 	dev_dbg(phy->dev, "Disconnect on port %d\n", port);
 
+	/* No need to delay before clearing ENHOSTDISCONDETECT. */
+	dev_dbg(phy->dev, "Clearing ENHOSTDISCONDETECT\n");
 	writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
 			phy->io_priv + HW_USBPHY_CTRL_CLR);
 
diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c
index 803f958f413..e52e35e7ada 100644
--- a/drivers/usb/otg/nop-usb-xceiv.c
+++ b/drivers/usb/otg/nop-usb-xceiv.c
@@ -30,6 +30,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/usb/otg.h>
+#include <linux/usb/nop-usb-xceiv.h>
 #include <linux/slab.h>
 
 struct nop_usb_xceiv {
@@ -94,7 +95,9 @@ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host)
 
 static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev)
 {
+	struct nop_usb_xceiv_platform_data *pdata = pdev->dev.platform_data;
 	struct nop_usb_xceiv	*nop;
+	enum usb_phy_type	type = USB_PHY_TYPE_USB2;
 	int err;
 
 	nop = kzalloc(sizeof *nop, GFP_KERNEL);
@@ -107,6 +110,9 @@ static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	if (pdata)
+		type = pdata->type;
+
 	nop->dev		= &pdev->dev;
 	nop->phy.dev		= nop->dev;
 	nop->phy.label		= "nop-xceiv";
@@ -117,7 +123,7 @@ static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev)
 	nop->phy.otg->set_host		= nop_set_host;
 	nop->phy.otg->set_peripheral	= nop_set_peripheral;
 
-	err = usb_add_phy(&nop->phy, USB_PHY_TYPE_USB2);
+	err = usb_add_phy(&nop->phy, type);
 	if (err) {
 		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
 			err);
diff --git a/drivers/usb/otg/otg.c b/drivers/usb/otg/otg.c
index 1bf60a22595..a30c0411511 100644
--- a/drivers/usb/otg/otg.c
+++ b/drivers/usb/otg/otg.c
@@ -159,7 +159,7 @@ int usb_add_phy(struct usb_phy *x, enum usb_phy_type type)
 	unsigned long	flags;
 	struct usb_phy	*phy;
 
-	if (x && x->type != USB_PHY_TYPE_UNDEFINED) {
+	if (x->type != USB_PHY_TYPE_UNDEFINED) {
 		dev_err(x->dev, "not accepting initialized PHY %s\n", x->label);
 		return -EINVAL;
 	}
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5bfea..f0d2e7530cf 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev)
 	struct twl4030_usb	*twl;
 	int			status, err;
 	struct usb_otg		*otg;
-
-	if (!pdata) {
-		dev_dbg(&pdev->dev, "platform_data not available\n");
-		return -EINVAL;
-	}
+	struct device_node	*np = pdev->dev.of_node;
 
 	twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
 	if (!twl)
 		return -ENOMEM;
 
+	if (np)
+		of_property_read_u32(np, "usb_mode",
+				(enum twl4030_usb_mode *)&twl->usb_mode);
+	else if (pdata)
+		twl->usb_mode = pdata->usb_mode;
+	else {
+		dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+		return -EINVAL;
+	}
+
 	otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
 	if (!otg)
 		return -ENOMEM;
 
 	twl->dev		= &pdev->dev;
 	twl->irq		= platform_get_irq(pdev, 0);
-	twl->usb_mode		= pdata->usb_mode;
 	twl->vbus_supplied	= false;
 	twl->asleep		= 1;
 	twl->linkstat		= OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+	{ .compatible = "ti,twl4030-usb" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
 static struct platform_driver twl4030_usb_driver = {
 	.probe		= twl4030_usb_probe,
 	.remove		= __exit_p(twl4030_usb_remove),
 	.driver		= {
 		.name	= "twl4030_usb",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(twl4030_usb_id_table),
 	},
 };
 
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 6907d8df7a2..fcadef7864f 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -25,8 +25,9 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
-#include <linux/usb/otg.h>
 #include <linux/usb/musb-omap.h>
+#include <linux/usb/phy_companion.h>
+#include <linux/usb/omap_usb.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/consumer.h>
 #include <linux/err.h>
@@ -87,7 +88,7 @@
 #define	VBUS_DET			BIT(2)
 
 struct twl6030_usb {
-	struct usb_phy		phy;
+	struct phy_companion	comparator;
 	struct device		*dev;
 
 	/* for vbus reporting with irqs disabled */
@@ -104,10 +105,10 @@ struct twl6030_usb {
 	u8			asleep;
 	bool			irq_enabled;
 	bool			vbus_enable;
-	unsigned long		features;
+	const char		*regulator;
 };
 
-#define phy_to_twl(x)		container_of((x), struct twl6030_usb, phy)
+#define	comparator_to_twl(x) container_of((x), struct twl6030_usb, comparator)
 
 /*-------------------------------------------------------------------------*/
 
@@ -137,50 +138,9 @@ static inline u8 twl6030_readb(struct twl6030_usb *twl, u8 module, u8 address)
 	return ret;
 }
 
-static int twl6030_phy_init(struct usb_phy *x)
+static int twl6030_start_srp(struct phy_companion *comparator)
 {
-	struct twl6030_usb *twl;
-	struct device *dev;
-	struct twl4030_usb_data *pdata;
-
-	twl = phy_to_twl(x);
-	dev  = twl->dev;
-	pdata = dev->platform_data;
-
-	if (twl->linkstat == OMAP_MUSB_ID_GROUND)
-		pdata->phy_power(twl->dev, 1, 1);
-	else
-		pdata->phy_power(twl->dev, 0, 1);
-
-	return 0;
-}
-
-static void twl6030_phy_shutdown(struct usb_phy *x)
-{
-	struct twl6030_usb *twl;
-	struct device *dev;
-	struct twl4030_usb_data *pdata;
-
-	twl = phy_to_twl(x);
-	dev  = twl->dev;
-	pdata = dev->platform_data;
-	pdata->phy_power(twl->dev, 0, 0);
-}
-
-static int twl6030_phy_suspend(struct usb_phy *x, int suspend)
-{
-	struct twl6030_usb *twl = phy_to_twl(x);
-	struct device *dev = twl->dev;
-	struct twl4030_usb_data *pdata = dev->platform_data;
-
-	pdata->phy_suspend(dev, suspend);
-
-	return 0;
-}
-
-static int twl6030_start_srp(struct usb_otg *otg)
-{
-	struct twl6030_usb *twl = phy_to_twl(otg->phy);
+	struct twl6030_usb *twl = comparator_to_twl(comparator);
 
 	twl6030_writeb(twl, TWL_MODULE_USB, 0x24, USB_VBUS_CTRL_SET);
 	twl6030_writeb(twl, TWL_MODULE_USB, 0x84, USB_VBUS_CTRL_SET);
@@ -193,13 +153,6 @@ static int twl6030_start_srp(struct usb_otg *otg)
 
 static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
 {
-	char *regulator_name;
-
-	if (twl->features & TWL6025_SUBCLASS)
-		regulator_name = "ldousb";
-	else
-		regulator_name = "vusb";
-
 	/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
 	twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
 
@@ -209,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
 	/* Program MISC2 register and set bit VUSB_IN_VBAT */
 	twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
 
-	twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+	twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
 	if (IS_ERR(twl->usb3v3))
 		return -ENODEV;
 
@@ -313,23 +266,8 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
 	return IRQ_HANDLED;
 }
 
-static int twl6030_set_peripheral(struct usb_otg *otg,
-		struct usb_gadget *gadget)
-{
-	if (!otg)
-		return -ENODEV;
-
-	otg->gadget = gadget;
-	if (!gadget)
-		otg->phy->state = OTG_STATE_UNDEFINED;
-
-	return 0;
-}
-
-static int twl6030_enable_irq(struct usb_phy *x)
+static int twl6030_enable_irq(struct twl6030_usb *twl)
 {
-	struct twl6030_usb *twl = phy_to_twl(x);
-
 	twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET);
 	twl6030_interrupt_unmask(0x05, REG_INT_MSK_LINE_C);
 	twl6030_interrupt_unmask(0x05, REG_INT_MSK_STS_C);
@@ -362,9 +300,9 @@ static void otg_set_vbus_work(struct work_struct *data)
 							CHARGERUSB_CTRL1);
 }
 
-static int twl6030_set_vbus(struct usb_otg *otg, bool enabled)
+static int twl6030_set_vbus(struct phy_companion *comparator, bool enabled)
 {
-	struct twl6030_usb *twl = phy_to_twl(otg->phy);
+	struct twl6030_usb *twl = comparator_to_twl(comparator);
 
 	twl->vbus_enable = enabled;
 	schedule_work(&twl->set_vbus_work);
@@ -372,52 +310,44 @@ static int twl6030_set_vbus(struct usb_otg *otg, bool enabled)
 	return 0;
 }
 
-static int twl6030_set_host(struct usb_otg *otg, struct usb_bus *host)
-{
-	if (!otg)
-		return -ENODEV;
-
-	otg->host = host;
-	if (!host)
-		otg->phy->state = OTG_STATE_UNDEFINED;
-	return 0;
-}
-
 static int __devinit twl6030_usb_probe(struct platform_device *pdev)
 {
+	u32 ret;
 	struct twl6030_usb	*twl;
 	int			status, err;
-	struct twl4030_usb_data *pdata;
-	struct usb_otg		*otg;
-	struct device *dev = &pdev->dev;
-	pdata = dev->platform_data;
+	struct device_node	*np = pdev->dev.of_node;
+	struct device		*dev = &pdev->dev;
+	struct twl4030_usb_data	*pdata = dev->platform_data;
 
 	twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
 	if (!twl)
 		return -ENOMEM;
 
-	otg = devm_kzalloc(dev, sizeof *otg, GFP_KERNEL);
-	if (!otg)
-		return -ENOMEM;
-
 	twl->dev		= &pdev->dev;
 	twl->irq1		= platform_get_irq(pdev, 0);
 	twl->irq2		= platform_get_irq(pdev, 1);
-	twl->features		= pdata->features;
 	twl->linkstat		= OMAP_MUSB_UNKNOWN;
 
-	twl->phy.dev		= twl->dev;
-	twl->phy.label		= "twl6030";
-	twl->phy.otg		= otg;
-	twl->phy.init		= twl6030_phy_init;
-	twl->phy.shutdown	= twl6030_phy_shutdown;
-	twl->phy.set_suspend	= twl6030_phy_suspend;
+	twl->comparator.set_vbus	= twl6030_set_vbus;
+	twl->comparator.start_srp	= twl6030_start_srp;
+
+	ret = omap_usb2_set_comparator(&twl->comparator);
+	if (ret == -ENODEV) {
+		dev_info(&pdev->dev, "phy not ready, deferring probe");
+		return -EPROBE_DEFER;
+	}
 
-	otg->phy		= &twl->phy;
-	otg->set_host		= twl6030_set_host;
-	otg->set_peripheral	= twl6030_set_peripheral;
-	otg->set_vbus		= twl6030_set_vbus;
-	otg->start_srp		= twl6030_start_srp;
+	if (np) {
+		twl->regulator = "usb";
+	} else if (pdata) {
+		if (pdata->features & TWL6025_SUBCLASS)
+			twl->regulator = "ldousb";
+		else
+			twl->regulator = "vusb";
+	} else {
+		dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+		return -EINVAL;
+	}
 
 	/* init spinlock for workqueue */
 	spin_lock_init(&twl->lock);
@@ -427,7 +357,6 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "ldo init failed\n");
 		return err;
 	}
-	usb_add_phy(&twl->phy, USB_PHY_TYPE_USB2);
 
 	platform_set_drvdata(pdev, twl);
 	if (device_create_file(&pdev->dev, &dev_attr_vbus))
@@ -458,9 +387,7 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev)
 	}
 
 	twl->asleep = 0;
-	pdata->phy_init(dev);
-	twl6030_phy_suspend(&twl->phy, 0);
-	twl6030_enable_irq(&twl->phy);
+	twl6030_enable_irq(twl);
 	dev_info(&pdev->dev, "Initialized TWL6030 USB module\n");
 
 	return 0;
@@ -470,10 +397,6 @@ static int __exit twl6030_usb_remove(struct platform_device *pdev)
 {
 	struct twl6030_usb *twl = platform_get_drvdata(pdev);
 
-	struct twl4030_usb_data *pdata;
-	struct device *dev = &pdev->dev;
-	pdata = dev->platform_data;
-
 	twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
 		REG_INT_MSK_LINE_C);
 	twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
@@ -481,19 +404,27 @@ static int __exit twl6030_usb_remove(struct platform_device *pdev)
 	free_irq(twl->irq1, twl);
 	free_irq(twl->irq2, twl);
 	regulator_put(twl->usb3v3);
-	pdata->phy_exit(twl->dev);
 	device_remove_file(twl->dev, &dev_attr_vbus);
 	cancel_work_sync(&twl->set_vbus_work);
 
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+	{ .compatible = "ti,twl6030-usb" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
+#endif
+
 static struct platform_driver twl6030_usb_driver = {
 	.probe		= twl6030_usb_probe,
 	.remove		= __exit_p(twl6030_usb_remove),
 	.driver		= {
 		.name	= "twl6030_usb",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(twl6030_usb_id_table),
 	},
 };
 
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index e7cf84f0751..63c339b3e67 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -4,6 +4,15 @@
 comment "USB Physical Layer drivers"
 	depends on USB || USB_GADGET
 
+config OMAP_USB2
+	tristate "OMAP USB2 PHY Driver"
+	select USB_OTG_UTILS
+	help
+	  Enable this to support the transceiver that is part of SOC. This
+	  driver takes care of all the PHY functionality apart from comparator.
+	  The USB OTG controller communicates with the comparator using this
+	  driver.
+
 config USB_ISP1301
 	tristate "NXP ISP1301 USB transceiver support"
 	depends on USB || USB_GADGET
@@ -15,3 +24,11 @@ config USB_ISP1301
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called isp1301.
+
+config MV_U3D_PHY
+	bool "Marvell USB 3.0 PHY controller Driver"
+	depends on USB_MV_U3D
+	select USB_OTG_UTILS
+	help
+	  Enable this to support Marvell USB 3.0 phy controller for Marvell
+	  SoC.
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index eca095b1a89..b069f29f122 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -4,4 +4,7 @@
 
 ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
 
+obj-$(CONFIG_OMAP_USB2)			+= omap-usb2.o
 obj-$(CONFIG_USB_ISP1301)		+= isp1301.o
+obj-$(CONFIG_MV_U3D_PHY)		+= mv_u3d_phy.o
+obj-$(CONFIG_USB_EHCI_TEGRA)	+= tegra_usb_phy.o
diff --git a/drivers/usb/phy/isp1301.c b/drivers/usb/phy/isp1301.c
index b19f4932a03..18dbf7e3760 100644
--- a/drivers/usb/phy/isp1301.c
+++ b/drivers/usb/phy/isp1301.c
@@ -15,12 +15,6 @@
 
 #define DRV_NAME		"isp1301"
 
-#define ISP1301_I2C_ADDR	0x2C
-
-static const unsigned short normal_i2c[] = {
-	ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END
-};
-
 static const struct i2c_device_id isp1301_id[] = {
 	{ "isp1301", 0 },
 	{ }
diff --git a/drivers/usb/phy/mv_u3d_phy.c b/drivers/usb/phy/mv_u3d_phy.c
new file mode 100644
index 00000000000..9f1c5d3c60e
--- /dev/null
+++ b/drivers/usb/phy/mv_u3d_phy.c
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/usb/otg.h>
+#include <linux/platform_data/mv_usb.h>
+
+#include "mv_u3d_phy.h"
+
+/*
+ * struct mv_u3d_phy - transceiver driver state
+ * @phy: transceiver structure
+ * @dev: The parent device supplied to the probe function
+ * @clk: usb phy clock
+ * @base: usb phy register memory base
+ */
+struct mv_u3d_phy {
+	struct usb_phy	phy;
+	struct mv_usb_platform_data *plat;
+	struct device	*dev;
+	struct clk	*clk;
+	void __iomem	*base;
+};
+
+static u32 mv_u3d_phy_read(void __iomem *base, u32 reg)
+{
+	void __iomem *addr, *data;
+
+	addr = base;
+	data = base + 0x4;
+
+	writel_relaxed(reg, addr);
+	return readl_relaxed(data);
+}
+
+static void mv_u3d_phy_set(void __iomem *base, u32 reg, u32 value)
+{
+	void __iomem *addr, *data;
+	u32 tmp;
+
+	addr = base;
+	data = base + 0x4;
+
+	writel_relaxed(reg, addr);
+	tmp = readl_relaxed(data);
+	tmp |= value;
+	writel_relaxed(tmp, data);
+}
+
+static void mv_u3d_phy_clear(void __iomem *base, u32 reg, u32 value)
+{
+	void __iomem *addr, *data;
+	u32 tmp;
+
+	addr = base;
+	data = base + 0x4;
+
+	writel_relaxed(reg, addr);
+	tmp = readl_relaxed(data);
+	tmp &= ~value;
+	writel_relaxed(tmp, data);
+}
+
+static void mv_u3d_phy_write(void __iomem *base, u32 reg, u32 value)
+{
+	void __iomem *addr, *data;
+
+	addr = base;
+	data = base + 0x4;
+
+	writel_relaxed(reg, addr);
+	writel_relaxed(value, data);
+}
+
+void mv_u3d_phy_shutdown(struct usb_phy *phy)
+{
+	struct mv_u3d_phy *mv_u3d_phy;
+	void __iomem *base;
+	u32 val;
+
+	mv_u3d_phy = container_of(phy, struct mv_u3d_phy, phy);
+	base = mv_u3d_phy->base;
+
+	/* Power down Reference Analog current, bit 15
+	 * Power down PLL, bit 14
+	 * Power down Receiver, bit 13
+	 * Power down Transmitter, bit 12
+	 * of USB3_POWER_PLL_CONTROL register
+	 */
+	val = mv_u3d_phy_read(base, USB3_POWER_PLL_CONTROL);
+	val &= ~(USB3_POWER_PLL_CONTROL_PU);
+	mv_u3d_phy_write(base, USB3_POWER_PLL_CONTROL, val);
+
+	if (mv_u3d_phy->clk)
+		clk_disable(mv_u3d_phy->clk);
+}
+
+static int mv_u3d_phy_init(struct usb_phy *phy)
+{
+	struct mv_u3d_phy *mv_u3d_phy;
+	void __iomem *base;
+	u32 val, count;
+
+	/* enable usb3 phy */
+	mv_u3d_phy = container_of(phy, struct mv_u3d_phy, phy);
+
+	if (mv_u3d_phy->clk)
+		clk_enable(mv_u3d_phy->clk);
+
+	base = mv_u3d_phy->base;
+
+	val = mv_u3d_phy_read(base, USB3_POWER_PLL_CONTROL);
+	val &= ~(USB3_POWER_PLL_CONTROL_PU_MASK);
+	val |= 0xF << USB3_POWER_PLL_CONTROL_PU_SHIFT;
+	mv_u3d_phy_write(base, USB3_POWER_PLL_CONTROL, val);
+	udelay(100);
+
+	mv_u3d_phy_write(base, USB3_RESET_CONTROL,
+			USB3_RESET_CONTROL_RESET_PIPE);
+	udelay(100);
+
+	mv_u3d_phy_write(base, USB3_RESET_CONTROL,
+			USB3_RESET_CONTROL_RESET_PIPE
+			| USB3_RESET_CONTROL_RESET_PHY);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_POWER_PLL_CONTROL);
+	val &= ~(USB3_POWER_PLL_CONTROL_REF_FREF_SEL_MASK
+		| USB3_POWER_PLL_CONTROL_PHY_MODE_MASK);
+	val |=  (USB3_PLL_25MHZ << USB3_POWER_PLL_CONTROL_REF_FREF_SEL_SHIFT)
+		| (0x5 << USB3_POWER_PLL_CONTROL_PHY_MODE_SHIFT);
+	mv_u3d_phy_write(base, USB3_POWER_PLL_CONTROL, val);
+	udelay(100);
+
+	mv_u3d_phy_clear(base, USB3_KVCO_CALI_CONTROL,
+		USB3_KVCO_CALI_CONTROL_USE_MAX_PLL_RATE_MASK);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_SQUELCH_FFE);
+	val &= ~(USB3_SQUELCH_FFE_FFE_CAP_SEL_MASK
+		| USB3_SQUELCH_FFE_FFE_RES_SEL_MASK
+		| USB3_SQUELCH_FFE_SQ_THRESH_IN_MASK);
+	val |= ((0xD << USB3_SQUELCH_FFE_FFE_CAP_SEL_SHIFT)
+		| (0x7 << USB3_SQUELCH_FFE_FFE_RES_SEL_SHIFT)
+		| (0x8 << USB3_SQUELCH_FFE_SQ_THRESH_IN_SHIFT));
+	mv_u3d_phy_write(base, USB3_SQUELCH_FFE, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_GEN1_SET0);
+	val &= ~USB3_GEN1_SET0_G1_TX_SLEW_CTRL_EN_MASK;
+	val |= 1 << USB3_GEN1_SET0_G1_TX_EMPH_EN_SHIFT;
+	mv_u3d_phy_write(base, USB3_GEN1_SET0, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_GEN2_SET0);
+	val &= ~(USB3_GEN2_SET0_G2_TX_AMP_MASK
+		| USB3_GEN2_SET0_G2_TX_EMPH_AMP_MASK
+		| USB3_GEN2_SET0_G2_TX_SLEW_CTRL_EN_MASK);
+	val |= ((0x14 << USB3_GEN2_SET0_G2_TX_AMP_SHIFT)
+		| (1 << USB3_GEN2_SET0_G2_TX_AMP_ADJ_SHIFT)
+		| (0xA << USB3_GEN2_SET0_G2_TX_EMPH_AMP_SHIFT)
+		| (1 << USB3_GEN2_SET0_G2_TX_EMPH_EN_SHIFT));
+	mv_u3d_phy_write(base, USB3_GEN2_SET0, val);
+	udelay(100);
+
+	mv_u3d_phy_read(base, USB3_TX_EMPPH);
+	val &= ~(USB3_TX_EMPPH_AMP_MASK
+		| USB3_TX_EMPPH_EN_MASK
+		| USB3_TX_EMPPH_AMP_FORCE_MASK
+		| USB3_TX_EMPPH_PAR1_MASK
+		| USB3_TX_EMPPH_PAR2_MASK);
+	val |= ((0xB << USB3_TX_EMPPH_AMP_SHIFT)
+		| (1 << USB3_TX_EMPPH_EN_SHIFT)
+		| (1 << USB3_TX_EMPPH_AMP_FORCE_SHIFT)
+		| (0x1C << USB3_TX_EMPPH_PAR1_SHIFT)
+		| (1 << USB3_TX_EMPPH_PAR2_SHIFT));
+
+	mv_u3d_phy_write(base, USB3_TX_EMPPH, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_GEN2_SET1);
+	val &= ~(USB3_GEN2_SET1_G2_RX_SELMUPI_MASK
+		| USB3_GEN2_SET1_G2_RX_SELMUPF_MASK
+		| USB3_GEN2_SET1_G2_RX_SELMUFI_MASK
+		| USB3_GEN2_SET1_G2_RX_SELMUFF_MASK);
+	val |= ((1 << USB3_GEN2_SET1_G2_RX_SELMUPI_SHIFT)
+		| (1 << USB3_GEN2_SET1_G2_RX_SELMUPF_SHIFT)
+		| (1 << USB3_GEN2_SET1_G2_RX_SELMUFI_SHIFT)
+		| (1 << USB3_GEN2_SET1_G2_RX_SELMUFF_SHIFT));
+	mv_u3d_phy_write(base, USB3_GEN2_SET1, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_DIGITAL_LOOPBACK_EN);
+	val &= ~USB3_DIGITAL_LOOPBACK_EN_SEL_BITS_MASK;
+	val |= 1 << USB3_DIGITAL_LOOPBACK_EN_SEL_BITS_SHIFT;
+	mv_u3d_phy_write(base, USB3_DIGITAL_LOOPBACK_EN, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_IMPEDANCE_TX_SSC);
+	val &= ~USB3_IMPEDANCE_TX_SSC_SSC_AMP_MASK;
+	val |= 0xC << USB3_IMPEDANCE_TX_SSC_SSC_AMP_SHIFT;
+	mv_u3d_phy_write(base, USB3_IMPEDANCE_TX_SSC, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_IMPEDANCE_CALI_CTRL);
+	val &= ~USB3_IMPEDANCE_CALI_CTRL_IMP_CAL_THR_MASK;
+	val |= 0x4 << USB3_IMPEDANCE_CALI_CTRL_IMP_CAL_THR_SHIFT;
+	mv_u3d_phy_write(base, USB3_IMPEDANCE_CALI_CTRL, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_PHY_ISOLATION_MODE);
+	val &= ~(USB3_PHY_ISOLATION_MODE_PHY_GEN_RX_MASK
+		| USB3_PHY_ISOLATION_MODE_PHY_GEN_TX_MASK
+		| USB3_PHY_ISOLATION_MODE_TX_DRV_IDLE_MASK);
+	val |= ((1 << USB3_PHY_ISOLATION_MODE_PHY_GEN_RX_SHIFT)
+		| (1 << USB3_PHY_ISOLATION_MODE_PHY_GEN_TX_SHIFT));
+	mv_u3d_phy_write(base, USB3_PHY_ISOLATION_MODE, val);
+	udelay(100);
+
+	val = mv_u3d_phy_read(base, USB3_TXDETRX);
+	val &= ~(USB3_TXDETRX_VTHSEL_MASK);
+	val |= 0x1 << USB3_TXDETRX_VTHSEL_SHIFT;
+	mv_u3d_phy_write(base, USB3_TXDETRX, val);
+	udelay(100);
+
+	dev_dbg(mv_u3d_phy->dev, "start calibration\n");
+
+calstart:
+	/* Perform Manual Calibration */
+	mv_u3d_phy_set(base, USB3_KVCO_CALI_CONTROL,
+		1 << USB3_KVCO_CALI_CONTROL_CAL_START_SHIFT);
+
+	mdelay(1);
+
+	count = 0;
+	while (1) {
+		val = mv_u3d_phy_read(base, USB3_KVCO_CALI_CONTROL);
+		if (val & (1 << USB3_KVCO_CALI_CONTROL_CAL_DONE_SHIFT))
+			break;
+		else if (count > 50) {
+			dev_dbg(mv_u3d_phy->dev, "calibration failure, retry...\n");
+			goto calstart;
+		}
+		count++;
+		mdelay(1);
+	}
+
+	/* active PIPE interface */
+	mv_u3d_phy_write(base, USB3_PIPE_SM_CTRL,
+		1 << USB3_PIPE_SM_CTRL_PHY_INIT_DONE);
+
+	return 0;
+}
+
+static int __devinit mv_u3d_phy_probe(struct platform_device *pdev)
+{
+	struct mv_u3d_phy *mv_u3d_phy;
+	struct mv_usb_platform_data *pdata;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	void __iomem	*phy_base;
+	int	ret;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
+		return -EINVAL;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "missing mem resource\n");
+		return -ENODEV;
+	}
+
+	phy_base = devm_request_and_ioremap(dev, res);
+	if (!phy_base) {
+		dev_err(dev, "%s: register mapping failed\n", __func__);
+		return -ENXIO;
+	}
+
+	mv_u3d_phy = devm_kzalloc(dev, sizeof(*mv_u3d_phy), GFP_KERNEL);
+	if (!mv_u3d_phy)
+		return -ENOMEM;
+
+	mv_u3d_phy->dev			= &pdev->dev;
+	mv_u3d_phy->plat		= pdata;
+	mv_u3d_phy->base		= phy_base;
+	mv_u3d_phy->phy.dev		= mv_u3d_phy->dev;
+	mv_u3d_phy->phy.label		= "mv-u3d-phy";
+	mv_u3d_phy->phy.init		= mv_u3d_phy_init;
+	mv_u3d_phy->phy.shutdown	= mv_u3d_phy_shutdown;
+
+	ret = usb_add_phy(&mv_u3d_phy->phy, USB_PHY_TYPE_USB3);
+	if (ret)
+		goto err;
+
+	if (!mv_u3d_phy->clk)
+		mv_u3d_phy->clk = clk_get(mv_u3d_phy->dev, "u3dphy");
+
+	platform_set_drvdata(pdev, mv_u3d_phy);
+
+	dev_info(&pdev->dev, "Initialized Marvell USB 3.0 PHY\n");
+err:
+	return ret;
+}
+
+static int __exit mv_u3d_phy_remove(struct platform_device *pdev)
+{
+	struct mv_u3d_phy *mv_u3d_phy = platform_get_drvdata(pdev);
+
+	usb_remove_phy(&mv_u3d_phy->phy);
+
+	if (mv_u3d_phy->clk) {
+		clk_put(mv_u3d_phy->clk);
+		mv_u3d_phy->clk = NULL;
+	}
+
+	return 0;
+}
+
+static struct platform_driver mv_u3d_phy_driver = {
+	.probe		= mv_u3d_phy_probe,
+	.remove		= __devexit_p(mv_u3d_phy_remove),
+	.driver		= {
+		.name	= "mv-u3d-phy",
+		.owner	= THIS_MODULE,
+	},
+};
+
+module_platform_driver(mv_u3d_phy_driver);
+MODULE_DESCRIPTION("Marvell USB 3.0 PHY controller");
+MODULE_AUTHOR("Yu Xu <yuxu@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mv-u3d-phy");
diff --git a/drivers/usb/phy/mv_u3d_phy.h b/drivers/usb/phy/mv_u3d_phy.h
new file mode 100644
index 00000000000..2a658cb9a52
--- /dev/null
+++ b/drivers/usb/phy/mv_u3d_phy.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#ifndef __MV_U3D_PHY_H
+#define __MV_U3D_PHY_H
+
+#define USB3_POWER_PLL_CONTROL		0x1
+#define USB3_KVCO_CALI_CONTROL		0x2
+#define USB3_IMPEDANCE_CALI_CTRL	0x3
+#define USB3_IMPEDANCE_TX_SSC		0x4
+#define USB3_SQUELCH_FFE		0x6
+#define USB3_GEN1_SET0			0xD
+#define USB3_GEN2_SET0			0xF
+#define USB3_GEN2_SET1			0x10
+#define USB3_DIGITAL_LOOPBACK_EN	0x23
+#define USB3_PHY_ISOLATION_MODE		0x26
+#define USB3_TXDETRX			0x48
+#define USB3_TX_EMPPH			0x5E
+#define USB3_RESET_CONTROL		0x90
+#define USB3_PIPE_SM_CTRL		0x91
+
+#define USB3_RESET_CONTROL_RESET_PIPE			0x1
+#define USB3_RESET_CONTROL_RESET_PHY			0x2
+
+#define USB3_POWER_PLL_CONTROL_REF_FREF_SEL_MASK	(0x1F << 0)
+#define USB3_POWER_PLL_CONTROL_REF_FREF_SEL_SHIFT	0
+#define USB3_PLL_25MHZ					0x2
+#define USB3_PLL_26MHZ					0x5
+#define USB3_POWER_PLL_CONTROL_PHY_MODE_MASK		(0x7 << 5)
+#define USB3_POWER_PLL_CONTROL_PHY_MODE_SHIFT		5
+#define USB3_POWER_PLL_CONTROL_PU_MASK			(0xF << 12)
+#define USB3_POWER_PLL_CONTROL_PU_SHIFT			12
+#define USB3_POWER_PLL_CONTROL_PU			(0xF << 12)
+
+#define USB3_KVCO_CALI_CONTROL_USE_MAX_PLL_RATE_MASK	(0x1 << 12)
+#define USB3_KVCO_CALI_CONTROL_USE_MAX_PLL_RATE_SHIFT	12
+#define USB3_KVCO_CALI_CONTROL_CAL_DONE_SHIFT		14
+#define USB3_KVCO_CALI_CONTROL_CAL_START_SHIFT		15
+
+#define USB3_SQUELCH_FFE_FFE_CAP_SEL_MASK		0xF
+#define USB3_SQUELCH_FFE_FFE_CAP_SEL_SHIFT		0
+#define USB3_SQUELCH_FFE_FFE_RES_SEL_MASK		(0x7 << 4)
+#define USB3_SQUELCH_FFE_FFE_RES_SEL_SHIFT		4
+#define USB3_SQUELCH_FFE_SQ_THRESH_IN_MASK		(0x1F << 8)
+#define USB3_SQUELCH_FFE_SQ_THRESH_IN_SHIFT		8
+
+#define USB3_GEN1_SET0_G1_TX_SLEW_CTRL_EN_MASK		(0x1 << 15)
+#define USB3_GEN1_SET0_G1_TX_EMPH_EN_SHIFT		11
+
+#define USB3_GEN2_SET0_G2_TX_AMP_MASK			(0x1F << 1)
+#define USB3_GEN2_SET0_G2_TX_AMP_SHIFT			1
+#define USB3_GEN2_SET0_G2_TX_AMP_ADJ_SHIFT		6
+#define USB3_GEN2_SET0_G2_TX_EMPH_AMP_MASK		(0xF << 7)
+#define USB3_GEN2_SET0_G2_TX_EMPH_AMP_SHIFT		7
+#define USB3_GEN2_SET0_G2_TX_EMPH_EN_MASK		(0x1 << 11)
+#define USB3_GEN2_SET0_G2_TX_EMPH_EN_SHIFT		11
+#define USB3_GEN2_SET0_G2_TX_SLEW_CTRL_EN_MASK		(0x1 << 15)
+#define USB3_GEN2_SET0_G2_TX_SLEW_CTRL_EN_SHIFT		15
+
+#define USB3_GEN2_SET1_G2_RX_SELMUPI_MASK		(0x7 << 0)
+#define USB3_GEN2_SET1_G2_RX_SELMUPI_SHIFT		0
+#define USB3_GEN2_SET1_G2_RX_SELMUPF_MASK		(0x7 << 3)
+#define USB3_GEN2_SET1_G2_RX_SELMUPF_SHIFT		3
+#define USB3_GEN2_SET1_G2_RX_SELMUFI_MASK		(0x3 << 6)
+#define USB3_GEN2_SET1_G2_RX_SELMUFI_SHIFT		6
+#define USB3_GEN2_SET1_G2_RX_SELMUFF_MASK		(0x3 << 8)
+#define USB3_GEN2_SET1_G2_RX_SELMUFF_SHIFT		8
+
+#define USB3_DIGITAL_LOOPBACK_EN_SEL_BITS_MASK		(0x3 << 10)
+#define USB3_DIGITAL_LOOPBACK_EN_SEL_BITS_SHIFT		10
+
+#define USB3_IMPEDANCE_CALI_CTRL_IMP_CAL_THR_MASK	(0x7 << 12)
+#define USB3_IMPEDANCE_CALI_CTRL_IMP_CAL_THR_SHIFT	12
+
+#define USB3_IMPEDANCE_TX_SSC_SSC_AMP_MASK		(0x3F << 0)
+#define USB3_IMPEDANCE_TX_SSC_SSC_AMP_SHIFT		0
+
+#define USB3_PHY_ISOLATION_MODE_PHY_GEN_RX_MASK		0xF
+#define USB3_PHY_ISOLATION_MODE_PHY_GEN_RX_SHIFT	0
+#define USB3_PHY_ISOLATION_MODE_PHY_GEN_TX_MASK		(0xF << 4)
+#define USB3_PHY_ISOLATION_MODE_PHY_GEN_TX_SHIFT	4
+#define USB3_PHY_ISOLATION_MODE_TX_DRV_IDLE_MASK	(0x1 << 8)
+
+#define USB3_TXDETRX_VTHSEL_MASK			(0x3 << 4)
+#define USB3_TXDETRX_VTHSEL_SHIFT			4
+
+#define USB3_TX_EMPPH_AMP_MASK				(0xF << 0)
+#define USB3_TX_EMPPH_AMP_SHIFT				0
+#define USB3_TX_EMPPH_EN_MASK				(0x1 << 6)
+#define USB3_TX_EMPPH_EN_SHIFT				6
+#define USB3_TX_EMPPH_AMP_FORCE_MASK			(0x1 << 7)
+#define USB3_TX_EMPPH_AMP_FORCE_SHIFT			7
+#define USB3_TX_EMPPH_PAR1_MASK				(0x1F << 8)
+#define USB3_TX_EMPPH_PAR1_SHIFT			8
+#define USB3_TX_EMPPH_PAR2_MASK				(0x1 << 13)
+#define USB3_TX_EMPPH_PAR2_SHIFT			13
+
+#define USB3_PIPE_SM_CTRL_PHY_INIT_DONE			15
+
+#endif /* __MV_U3D_PHY_H */
diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c
new file mode 100644
index 00000000000..15ab3d6f2e8
--- /dev/null
+++ b/drivers/usb/phy/omap-usb2.c
@@ -0,0 +1,271 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <linux/usb/omap_usb.h>
+#include <linux/usb/phy_companion.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/delay.h>
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ *	this phy
+ * @comparator - the companion phy(comparator) for this phy
+ *
+ * The phy companion driver should call this API passing the phy_companion
+ * filled with set_vbus and start_srp to be used by usb phy.
+ *
+ * For use by phy companion driver
+ */
+int omap_usb2_set_comparator(struct phy_companion *comparator)
+{
+	struct omap_usb	*phy;
+	struct usb_phy	*x = usb_get_phy(USB_PHY_TYPE_USB2);
+
+	if (IS_ERR(x))
+		return -ENODEV;
+
+	phy = phy_to_omapusb(x);
+	phy->comparator = comparator;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(omap_usb2_set_comparator);
+
+/**
+ * omap_usb_phy_power - power on/off the phy using control module reg
+ * @phy: struct omap_usb *
+ * @on: 0 or 1, based on powering on or off the PHY
+ *
+ * XXX: Remove this function once control module driver gets merged
+ */
+static void omap_usb_phy_power(struct omap_usb *phy, int on)
+{
+	u32 val;
+
+	if (on) {
+		val = readl(phy->control_dev);
+		if (val & PHY_PD) {
+			writel(~PHY_PD, phy->control_dev);
+			/* XXX: add proper documentation for this delay */
+			mdelay(200);
+		}
+	} else {
+		writel(PHY_PD, phy->control_dev);
+	}
+}
+
+static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
+{
+	struct omap_usb *phy = phy_to_omapusb(otg->phy);
+
+	if (!phy->comparator)
+		return -ENODEV;
+
+	return phy->comparator->set_vbus(phy->comparator, enabled);
+}
+
+static int omap_usb_start_srp(struct usb_otg *otg)
+{
+	struct omap_usb *phy = phy_to_omapusb(otg->phy);
+
+	if (!phy->comparator)
+		return -ENODEV;
+
+	return phy->comparator->start_srp(phy->comparator);
+}
+
+static int omap_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
+{
+	struct usb_phy	*phy = otg->phy;
+
+	otg->host = host;
+	if (!host)
+		phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int omap_usb_set_peripheral(struct usb_otg *otg,
+		struct usb_gadget *gadget)
+{
+	struct usb_phy	*phy = otg->phy;
+
+	otg->gadget = gadget;
+	if (!gadget)
+		phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int omap_usb2_suspend(struct usb_phy *x, int suspend)
+{
+	u32 ret;
+	struct omap_usb *phy = phy_to_omapusb(x);
+
+	if (suspend && !phy->is_suspended) {
+		omap_usb_phy_power(phy, 0);
+		pm_runtime_put_sync(phy->dev);
+		phy->is_suspended = 1;
+	} else if (!suspend && phy->is_suspended) {
+		ret = pm_runtime_get_sync(phy->dev);
+		if (ret < 0) {
+			dev_err(phy->dev, "get_sync failed with err %d\n",
+									ret);
+			return ret;
+		}
+		omap_usb_phy_power(phy, 1);
+		phy->is_suspended = 0;
+	}
+
+	return 0;
+}
+
+static int __devinit omap_usb2_probe(struct platform_device *pdev)
+{
+	struct omap_usb			*phy;
+	struct usb_otg			*otg;
+	struct resource			*res;
+
+	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy) {
+		dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
+		return -ENOMEM;
+	}
+
+	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
+	if (!otg) {
+		dev_err(&pdev->dev, "unable to allocate memory for USB OTG\n");
+		return -ENOMEM;
+	}
+
+	phy->dev		= &pdev->dev;
+
+	phy->phy.dev		= phy->dev;
+	phy->phy.label		= "omap-usb2";
+	phy->phy.set_suspend	= omap_usb2_suspend;
+	phy->phy.otg		= otg;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+
+	phy->control_dev = devm_request_and_ioremap(&pdev->dev, res);
+	if (phy->control_dev == NULL) {
+		dev_err(&pdev->dev, "Failed to obtain io memory\n");
+		return -ENXIO;
+	}
+
+	phy->is_suspended	= 1;
+	omap_usb_phy_power(phy, 0);
+
+	otg->set_host		= omap_usb_set_host;
+	otg->set_peripheral	= omap_usb_set_peripheral;
+	otg->set_vbus		= omap_usb_set_vbus;
+	otg->start_srp		= omap_usb_start_srp;
+	otg->phy		= &phy->phy;
+
+	phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
+	if (IS_ERR(phy->wkupclk)) {
+		dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
+		return PTR_ERR(phy->wkupclk);
+	}
+	clk_prepare(phy->wkupclk);
+
+	usb_add_phy(&phy->phy, USB_PHY_TYPE_USB2);
+
+	platform_set_drvdata(pdev, phy);
+
+	pm_runtime_enable(phy->dev);
+
+	return 0;
+}
+
+static int __devexit omap_usb2_remove(struct platform_device *pdev)
+{
+	struct omap_usb	*phy = platform_get_drvdata(pdev);
+
+	clk_unprepare(phy->wkupclk);
+	usb_remove_phy(&phy->phy);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+
+static int omap_usb2_runtime_suspend(struct device *dev)
+{
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct omap_usb	*phy = platform_get_drvdata(pdev);
+
+	clk_disable(phy->wkupclk);
+
+	return 0;
+}
+
+static int omap_usb2_runtime_resume(struct device *dev)
+{
+	u32 ret = 0;
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct omap_usb	*phy = platform_get_drvdata(pdev);
+
+	ret = clk_enable(phy->wkupclk);
+	if (ret < 0)
+		dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
+
+	return ret;
+}
+
+static const struct dev_pm_ops omap_usb2_pm_ops = {
+	SET_RUNTIME_PM_OPS(omap_usb2_runtime_suspend, omap_usb2_runtime_resume,
+		NULL)
+};
+
+#define DEV_PM_OPS     (&omap_usb2_pm_ops)
+#else
+#define DEV_PM_OPS     NULL
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_usb2_id_table[] = {
+	{ .compatible = "ti,omap-usb2" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
+static struct platform_driver omap_usb2_driver = {
+	.probe		= omap_usb2_probe,
+	.remove		= __devexit_p(omap_usb2_remove),
+	.driver		= {
+		.name	= "omap-usb2",
+		.owner	= THIS_MODULE,
+		.pm	= DEV_PM_OPS,
+		.of_match_table = of_match_ptr(omap_usb2_id_table),
+	},
+};
+
+module_platform_driver(omap_usb2_driver);
+
+MODULE_ALIAS("platform: omap_usb2");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP USB2 phy driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c
new file mode 100644
index 00000000000..987116f9efc
--- /dev/null
+++ b/drivers/usb/phy/tegra_usb_phy.c
@@ -0,0 +1,838 @@
+/*
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ *	Erik Gilling <konkers@google.com>
+ *	Benoit Goby <benoit@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/resource.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <asm/mach-types.h>
+#include <linux/usb/tegra_usb_phy.h>
+#include <mach/iomap.h>
+
+#define ULPI_VIEWPORT		0x170
+
+#define USB_PORTSC1		0x184
+#define   USB_PORTSC1_PTS(x)	(((x) & 0x3) << 30)
+#define   USB_PORTSC1_PSPD(x)	(((x) & 0x3) << 26)
+#define   USB_PORTSC1_PHCD	(1 << 23)
+#define   USB_PORTSC1_WKOC	(1 << 22)
+#define   USB_PORTSC1_WKDS	(1 << 21)
+#define   USB_PORTSC1_WKCN	(1 << 20)
+#define   USB_PORTSC1_PTC(x)	(((x) & 0xf) << 16)
+#define   USB_PORTSC1_PP	(1 << 12)
+#define   USB_PORTSC1_SUSP	(1 << 7)
+#define   USB_PORTSC1_PE	(1 << 2)
+#define   USB_PORTSC1_CCS	(1 << 0)
+
+#define USB_SUSP_CTRL		0x400
+#define   USB_WAKE_ON_CNNT_EN_DEV	(1 << 3)
+#define   USB_WAKE_ON_DISCON_EN_DEV	(1 << 4)
+#define   USB_SUSP_CLR		(1 << 5)
+#define   USB_PHY_CLK_VALID	(1 << 7)
+#define   UTMIP_RESET			(1 << 11)
+#define   UHSIC_RESET			(1 << 11)
+#define   UTMIP_PHY_ENABLE		(1 << 12)
+#define   ULPI_PHY_ENABLE	(1 << 13)
+#define   USB_SUSP_SET		(1 << 14)
+#define   USB_WAKEUP_DEBOUNCE_COUNT(x)	(((x) & 0x7) << 16)
+
+#define USB1_LEGACY_CTRL	0x410
+#define   USB1_NO_LEGACY_MODE			(1 << 0)
+#define   USB1_VBUS_SENSE_CTL_MASK		(3 << 1)
+#define   USB1_VBUS_SENSE_CTL_VBUS_WAKEUP	(0 << 1)
+#define   USB1_VBUS_SENSE_CTL_AB_SESS_VLD_OR_VBUS_WAKEUP \
+						(1 << 1)
+#define   USB1_VBUS_SENSE_CTL_AB_SESS_VLD	(2 << 1)
+#define   USB1_VBUS_SENSE_CTL_A_SESS_VLD	(3 << 1)
+
+#define ULPI_TIMING_CTRL_0	0x424
+#define   ULPI_OUTPUT_PINMUX_BYP	(1 << 10)
+#define   ULPI_CLKOUT_PINMUX_BYP	(1 << 11)
+
+#define ULPI_TIMING_CTRL_1	0x428
+#define   ULPI_DATA_TRIMMER_LOAD	(1 << 0)
+#define   ULPI_DATA_TRIMMER_SEL(x)	(((x) & 0x7) << 1)
+#define   ULPI_STPDIRNXT_TRIMMER_LOAD	(1 << 16)
+#define   ULPI_STPDIRNXT_TRIMMER_SEL(x)	(((x) & 0x7) << 17)
+#define   ULPI_DIR_TRIMMER_LOAD		(1 << 24)
+#define   ULPI_DIR_TRIMMER_SEL(x)	(((x) & 0x7) << 25)
+
+#define UTMIP_PLL_CFG1		0x804
+#define   UTMIP_XTAL_FREQ_COUNT(x)		(((x) & 0xfff) << 0)
+#define   UTMIP_PLLU_ENABLE_DLY_COUNT(x)	(((x) & 0x1f) << 27)
+
+#define UTMIP_XCVR_CFG0		0x808
+#define   UTMIP_XCVR_SETUP(x)			(((x) & 0xf) << 0)
+#define   UTMIP_XCVR_LSRSLEW(x)			(((x) & 0x3) << 8)
+#define   UTMIP_XCVR_LSFSLEW(x)			(((x) & 0x3) << 10)
+#define   UTMIP_FORCE_PD_POWERDOWN		(1 << 14)
+#define   UTMIP_FORCE_PD2_POWERDOWN		(1 << 16)
+#define   UTMIP_FORCE_PDZI_POWERDOWN		(1 << 18)
+#define   UTMIP_XCVR_HSSLEW_MSB(x)		(((x) & 0x7f) << 25)
+
+#define UTMIP_BIAS_CFG0		0x80c
+#define   UTMIP_OTGPD			(1 << 11)
+#define   UTMIP_BIASPD			(1 << 10)
+
+#define UTMIP_HSRX_CFG0		0x810
+#define   UTMIP_ELASTIC_LIMIT(x)	(((x) & 0x1f) << 10)
+#define   UTMIP_IDLE_WAIT(x)		(((x) & 0x1f) << 15)
+
+#define UTMIP_HSRX_CFG1		0x814
+#define   UTMIP_HS_SYNC_START_DLY(x)	(((x) & 0x1f) << 1)
+
+#define UTMIP_TX_CFG0		0x820
+#define   UTMIP_FS_PREABMLE_J		(1 << 19)
+#define   UTMIP_HS_DISCON_DISABLE	(1 << 8)
+
+#define UTMIP_MISC_CFG0		0x824
+#define   UTMIP_DPDM_OBSERVE		(1 << 26)
+#define   UTMIP_DPDM_OBSERVE_SEL(x)	(((x) & 0xf) << 27)
+#define   UTMIP_DPDM_OBSERVE_SEL_FS_J	UTMIP_DPDM_OBSERVE_SEL(0xf)
+#define   UTMIP_DPDM_OBSERVE_SEL_FS_K	UTMIP_DPDM_OBSERVE_SEL(0xe)
+#define   UTMIP_DPDM_OBSERVE_SEL_FS_SE1 UTMIP_DPDM_OBSERVE_SEL(0xd)
+#define   UTMIP_DPDM_OBSERVE_SEL_FS_SE0 UTMIP_DPDM_OBSERVE_SEL(0xc)
+#define   UTMIP_SUSPEND_EXIT_ON_EDGE	(1 << 22)
+
+#define UTMIP_MISC_CFG1		0x828
+#define   UTMIP_PLL_ACTIVE_DLY_COUNT(x)	(((x) & 0x1f) << 18)
+#define   UTMIP_PLLU_STABLE_COUNT(x)	(((x) & 0xfff) << 6)
+
+#define UTMIP_DEBOUNCE_CFG0	0x82c
+#define   UTMIP_BIAS_DEBOUNCE_A(x)	(((x) & 0xffff) << 0)
+
+#define UTMIP_BAT_CHRG_CFG0	0x830
+#define   UTMIP_PD_CHRG			(1 << 0)
+
+#define UTMIP_SPARE_CFG0	0x834
+#define   FUSE_SETUP_SEL		(1 << 3)
+
+#define UTMIP_XCVR_CFG1		0x838
+#define   UTMIP_FORCE_PDDISC_POWERDOWN	(1 << 0)
+#define   UTMIP_FORCE_PDCHRP_POWERDOWN	(1 << 2)
+#define   UTMIP_FORCE_PDDR_POWERDOWN	(1 << 4)
+#define   UTMIP_XCVR_TERM_RANGE_ADJ(x)	(((x) & 0xf) << 18)
+
+#define UTMIP_BIAS_CFG1		0x83c
+#define   UTMIP_BIAS_PDTRK_COUNT(x)	(((x) & 0x1f) << 3)
+
+static DEFINE_SPINLOCK(utmip_pad_lock);
+static int utmip_pad_count;
+
+struct tegra_xtal_freq {
+	int freq;
+	u8 enable_delay;
+	u8 stable_count;
+	u8 active_delay;
+	u8 xtal_freq_count;
+	u16 debounce;
+};
+
+static const struct tegra_xtal_freq tegra_freq_table[] = {
+	{
+		.freq = 12000000,
+		.enable_delay = 0x02,
+		.stable_count = 0x2F,
+		.active_delay = 0x04,
+		.xtal_freq_count = 0x76,
+		.debounce = 0x7530,
+	},
+	{
+		.freq = 13000000,
+		.enable_delay = 0x02,
+		.stable_count = 0x33,
+		.active_delay = 0x05,
+		.xtal_freq_count = 0x7F,
+		.debounce = 0x7EF4,
+	},
+	{
+		.freq = 19200000,
+		.enable_delay = 0x03,
+		.stable_count = 0x4B,
+		.active_delay = 0x06,
+		.xtal_freq_count = 0xBB,
+		.debounce = 0xBB80,
+	},
+	{
+		.freq = 26000000,
+		.enable_delay = 0x04,
+		.stable_count = 0x66,
+		.active_delay = 0x09,
+		.xtal_freq_count = 0xFE,
+		.debounce = 0xFDE8,
+	},
+};
+
+static struct tegra_utmip_config utmip_default[] = {
+	[0] = {
+		.hssync_start_delay = 9,
+		.idle_wait_delay = 17,
+		.elastic_limit = 16,
+		.term_range_adj = 6,
+		.xcvr_setup = 9,
+		.xcvr_lsfslew = 1,
+		.xcvr_lsrslew = 1,
+	},
+	[2] = {
+		.hssync_start_delay = 9,
+		.idle_wait_delay = 17,
+		.elastic_limit = 16,
+		.term_range_adj = 6,
+		.xcvr_setup = 9,
+		.xcvr_lsfslew = 2,
+		.xcvr_lsrslew = 2,
+	},
+};
+
+static inline bool phy_is_ulpi(struct tegra_usb_phy *phy)
+{
+	return (phy->instance == 1);
+}
+
+static int utmip_pad_open(struct tegra_usb_phy *phy)
+{
+	phy->pad_clk = clk_get_sys("utmip-pad", NULL);
+	if (IS_ERR(phy->pad_clk)) {
+		pr_err("%s: can't get utmip pad clock\n", __func__);
+		return PTR_ERR(phy->pad_clk);
+	}
+
+	if (phy->instance == 0) {
+		phy->pad_regs = phy->regs;
+	} else {
+		phy->pad_regs = ioremap(TEGRA_USB_BASE, TEGRA_USB_SIZE);
+		if (!phy->pad_regs) {
+			pr_err("%s: can't remap usb registers\n", __func__);
+			clk_put(phy->pad_clk);
+			return -ENOMEM;
+		}
+	}
+	return 0;
+}
+
+static void utmip_pad_close(struct tegra_usb_phy *phy)
+{
+	if (phy->instance != 0)
+		iounmap(phy->pad_regs);
+	clk_put(phy->pad_clk);
+}
+
+static void utmip_pad_power_on(struct tegra_usb_phy *phy)
+{
+	unsigned long val, flags;
+	void __iomem *base = phy->pad_regs;
+
+	clk_prepare_enable(phy->pad_clk);
+
+	spin_lock_irqsave(&utmip_pad_lock, flags);
+
+	if (utmip_pad_count++ == 0) {
+		val = readl(base + UTMIP_BIAS_CFG0);
+		val &= ~(UTMIP_OTGPD | UTMIP_BIASPD);
+		writel(val, base + UTMIP_BIAS_CFG0);
+	}
+
+	spin_unlock_irqrestore(&utmip_pad_lock, flags);
+
+	clk_disable_unprepare(phy->pad_clk);
+}
+
+static int utmip_pad_power_off(struct tegra_usb_phy *phy)
+{
+	unsigned long val, flags;
+	void __iomem *base = phy->pad_regs;
+
+	if (!utmip_pad_count) {
+		pr_err("%s: utmip pad already powered off\n", __func__);
+		return -EINVAL;
+	}
+
+	clk_prepare_enable(phy->pad_clk);
+
+	spin_lock_irqsave(&utmip_pad_lock, flags);
+
+	if (--utmip_pad_count == 0) {
+		val = readl(base + UTMIP_BIAS_CFG0);
+		val |= UTMIP_OTGPD | UTMIP_BIASPD;
+		writel(val, base + UTMIP_BIAS_CFG0);
+	}
+
+	spin_unlock_irqrestore(&utmip_pad_lock, flags);
+
+	clk_disable_unprepare(phy->pad_clk);
+
+	return 0;
+}
+
+static int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+	unsigned long timeout = 2000;
+	do {
+		if ((readl(reg) & mask) == result)
+			return 0;
+		udelay(1);
+		timeout--;
+	} while (timeout);
+	return -1;
+}
+
+static void utmi_phy_clk_disable(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	if (phy->instance == 0) {
+		val = readl(base + USB_SUSP_CTRL);
+		val |= USB_SUSP_SET;
+		writel(val, base + USB_SUSP_CTRL);
+
+		udelay(10);
+
+		val = readl(base + USB_SUSP_CTRL);
+		val &= ~USB_SUSP_SET;
+		writel(val, base + USB_SUSP_CTRL);
+	}
+
+	if (phy->instance == 2) {
+		val = readl(base + USB_PORTSC1);
+		val |= USB_PORTSC1_PHCD;
+		writel(val, base + USB_PORTSC1);
+	}
+
+	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID, 0) < 0)
+		pr_err("%s: timeout waiting for phy to stabilize\n", __func__);
+}
+
+static void utmi_phy_clk_enable(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	if (phy->instance == 0) {
+		val = readl(base + USB_SUSP_CTRL);
+		val |= USB_SUSP_CLR;
+		writel(val, base + USB_SUSP_CTRL);
+
+		udelay(10);
+
+		val = readl(base + USB_SUSP_CTRL);
+		val &= ~USB_SUSP_CLR;
+		writel(val, base + USB_SUSP_CTRL);
+	}
+
+	if (phy->instance == 2) {
+		val = readl(base + USB_PORTSC1);
+		val &= ~USB_PORTSC1_PHCD;
+		writel(val, base + USB_PORTSC1);
+	}
+
+	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID,
+						     USB_PHY_CLK_VALID))
+		pr_err("%s: timeout waiting for phy to stabilize\n", __func__);
+}
+
+static int utmi_phy_power_on(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+	struct tegra_utmip_config *config = phy->config;
+
+	val = readl(base + USB_SUSP_CTRL);
+	val |= UTMIP_RESET;
+	writel(val, base + USB_SUSP_CTRL);
+
+	if (phy->instance == 0) {
+		val = readl(base + USB1_LEGACY_CTRL);
+		val |= USB1_NO_LEGACY_MODE;
+		writel(val, base + USB1_LEGACY_CTRL);
+	}
+
+	val = readl(base + UTMIP_TX_CFG0);
+	val &= ~UTMIP_FS_PREABMLE_J;
+	writel(val, base + UTMIP_TX_CFG0);
+
+	val = readl(base + UTMIP_HSRX_CFG0);
+	val &= ~(UTMIP_IDLE_WAIT(~0) | UTMIP_ELASTIC_LIMIT(~0));
+	val |= UTMIP_IDLE_WAIT(config->idle_wait_delay);
+	val |= UTMIP_ELASTIC_LIMIT(config->elastic_limit);
+	writel(val, base + UTMIP_HSRX_CFG0);
+
+	val = readl(base + UTMIP_HSRX_CFG1);
+	val &= ~UTMIP_HS_SYNC_START_DLY(~0);
+	val |= UTMIP_HS_SYNC_START_DLY(config->hssync_start_delay);
+	writel(val, base + UTMIP_HSRX_CFG1);
+
+	val = readl(base + UTMIP_DEBOUNCE_CFG0);
+	val &= ~UTMIP_BIAS_DEBOUNCE_A(~0);
+	val |= UTMIP_BIAS_DEBOUNCE_A(phy->freq->debounce);
+	writel(val, base + UTMIP_DEBOUNCE_CFG0);
+
+	val = readl(base + UTMIP_MISC_CFG0);
+	val &= ~UTMIP_SUSPEND_EXIT_ON_EDGE;
+	writel(val, base + UTMIP_MISC_CFG0);
+
+	val = readl(base + UTMIP_MISC_CFG1);
+	val &= ~(UTMIP_PLL_ACTIVE_DLY_COUNT(~0) | UTMIP_PLLU_STABLE_COUNT(~0));
+	val |= UTMIP_PLL_ACTIVE_DLY_COUNT(phy->freq->active_delay) |
+		UTMIP_PLLU_STABLE_COUNT(phy->freq->stable_count);
+	writel(val, base + UTMIP_MISC_CFG1);
+
+	val = readl(base + UTMIP_PLL_CFG1);
+	val &= ~(UTMIP_XTAL_FREQ_COUNT(~0) | UTMIP_PLLU_ENABLE_DLY_COUNT(~0));
+	val |= UTMIP_XTAL_FREQ_COUNT(phy->freq->xtal_freq_count) |
+		UTMIP_PLLU_ENABLE_DLY_COUNT(phy->freq->enable_delay);
+	writel(val, base + UTMIP_PLL_CFG1);
+
+	if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) {
+		val = readl(base + USB_SUSP_CTRL);
+		val &= ~(USB_WAKE_ON_CNNT_EN_DEV | USB_WAKE_ON_DISCON_EN_DEV);
+		writel(val, base + USB_SUSP_CTRL);
+	}
+
+	utmip_pad_power_on(phy);
+
+	val = readl(base + UTMIP_XCVR_CFG0);
+	val &= ~(UTMIP_FORCE_PD_POWERDOWN | UTMIP_FORCE_PD2_POWERDOWN |
+		 UTMIP_FORCE_PDZI_POWERDOWN | UTMIP_XCVR_SETUP(~0) |
+		 UTMIP_XCVR_LSFSLEW(~0) | UTMIP_XCVR_LSRSLEW(~0) |
+		 UTMIP_XCVR_HSSLEW_MSB(~0));
+	val |= UTMIP_XCVR_SETUP(config->xcvr_setup);
+	val |= UTMIP_XCVR_LSFSLEW(config->xcvr_lsfslew);
+	val |= UTMIP_XCVR_LSRSLEW(config->xcvr_lsrslew);
+	writel(val, base + UTMIP_XCVR_CFG0);
+
+	val = readl(base + UTMIP_XCVR_CFG1);
+	val &= ~(UTMIP_FORCE_PDDISC_POWERDOWN | UTMIP_FORCE_PDCHRP_POWERDOWN |
+		 UTMIP_FORCE_PDDR_POWERDOWN | UTMIP_XCVR_TERM_RANGE_ADJ(~0));
+	val |= UTMIP_XCVR_TERM_RANGE_ADJ(config->term_range_adj);
+	writel(val, base + UTMIP_XCVR_CFG1);
+
+	val = readl(base + UTMIP_BAT_CHRG_CFG0);
+	val &= ~UTMIP_PD_CHRG;
+	writel(val, base + UTMIP_BAT_CHRG_CFG0);
+
+	val = readl(base + UTMIP_BIAS_CFG1);
+	val &= ~UTMIP_BIAS_PDTRK_COUNT(~0);
+	val |= UTMIP_BIAS_PDTRK_COUNT(0x5);
+	writel(val, base + UTMIP_BIAS_CFG1);
+
+	if (phy->instance == 0) {
+		val = readl(base + UTMIP_SPARE_CFG0);
+		if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE)
+			val &= ~FUSE_SETUP_SEL;
+		else
+			val |= FUSE_SETUP_SEL;
+		writel(val, base + UTMIP_SPARE_CFG0);
+	}
+
+	if (phy->instance == 2) {
+		val = readl(base + USB_SUSP_CTRL);
+		val |= UTMIP_PHY_ENABLE;
+		writel(val, base + USB_SUSP_CTRL);
+	}
+
+	val = readl(base + USB_SUSP_CTRL);
+	val &= ~UTMIP_RESET;
+	writel(val, base + USB_SUSP_CTRL);
+
+	if (phy->instance == 0) {
+		val = readl(base + USB1_LEGACY_CTRL);
+		val &= ~USB1_VBUS_SENSE_CTL_MASK;
+		val |= USB1_VBUS_SENSE_CTL_A_SESS_VLD;
+		writel(val, base + USB1_LEGACY_CTRL);
+
+		val = readl(base + USB_SUSP_CTRL);
+		val &= ~USB_SUSP_SET;
+		writel(val, base + USB_SUSP_CTRL);
+	}
+
+	utmi_phy_clk_enable(phy);
+
+	if (phy->instance == 2) {
+		val = readl(base + USB_PORTSC1);
+		val &= ~USB_PORTSC1_PTS(~0);
+		writel(val, base + USB_PORTSC1);
+	}
+
+	return 0;
+}
+
+static int utmi_phy_power_off(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	utmi_phy_clk_disable(phy);
+
+	if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) {
+		val = readl(base + USB_SUSP_CTRL);
+		val &= ~USB_WAKEUP_DEBOUNCE_COUNT(~0);
+		val |= USB_WAKE_ON_CNNT_EN_DEV | USB_WAKEUP_DEBOUNCE_COUNT(5);
+		writel(val, base + USB_SUSP_CTRL);
+	}
+
+	val = readl(base + USB_SUSP_CTRL);
+	val |= UTMIP_RESET;
+	writel(val, base + USB_SUSP_CTRL);
+
+	val = readl(base + UTMIP_BAT_CHRG_CFG0);
+	val |= UTMIP_PD_CHRG;
+	writel(val, base + UTMIP_BAT_CHRG_CFG0);
+
+	val = readl(base + UTMIP_XCVR_CFG0);
+	val |= UTMIP_FORCE_PD_POWERDOWN | UTMIP_FORCE_PD2_POWERDOWN |
+	       UTMIP_FORCE_PDZI_POWERDOWN;
+	writel(val, base + UTMIP_XCVR_CFG0);
+
+	val = readl(base + UTMIP_XCVR_CFG1);
+	val |= UTMIP_FORCE_PDDISC_POWERDOWN | UTMIP_FORCE_PDCHRP_POWERDOWN |
+	       UTMIP_FORCE_PDDR_POWERDOWN;
+	writel(val, base + UTMIP_XCVR_CFG1);
+
+	return utmip_pad_power_off(phy);
+}
+
+static void utmi_phy_preresume(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	val = readl(base + UTMIP_TX_CFG0);
+	val |= UTMIP_HS_DISCON_DISABLE;
+	writel(val, base + UTMIP_TX_CFG0);
+}
+
+static void utmi_phy_postresume(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	val = readl(base + UTMIP_TX_CFG0);
+	val &= ~UTMIP_HS_DISCON_DISABLE;
+	writel(val, base + UTMIP_TX_CFG0);
+}
+
+static void utmi_phy_restore_start(struct tegra_usb_phy *phy,
+				   enum tegra_usb_phy_port_speed port_speed)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	val = readl(base + UTMIP_MISC_CFG0);
+	val &= ~UTMIP_DPDM_OBSERVE_SEL(~0);
+	if (port_speed == TEGRA_USB_PHY_PORT_SPEED_LOW)
+		val |= UTMIP_DPDM_OBSERVE_SEL_FS_K;
+	else
+		val |= UTMIP_DPDM_OBSERVE_SEL_FS_J;
+	writel(val, base + UTMIP_MISC_CFG0);
+	udelay(1);
+
+	val = readl(base + UTMIP_MISC_CFG0);
+	val |= UTMIP_DPDM_OBSERVE;
+	writel(val, base + UTMIP_MISC_CFG0);
+	udelay(10);
+}
+
+static void utmi_phy_restore_end(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+
+	val = readl(base + UTMIP_MISC_CFG0);
+	val &= ~UTMIP_DPDM_OBSERVE;
+	writel(val, base + UTMIP_MISC_CFG0);
+	udelay(10);
+}
+
+static int ulpi_phy_power_on(struct tegra_usb_phy *phy)
+{
+	int ret;
+	unsigned long val;
+	void __iomem *base = phy->regs;
+	struct tegra_ulpi_config *config = phy->config;
+
+	gpio_direction_output(config->reset_gpio, 0);
+	msleep(5);
+	gpio_direction_output(config->reset_gpio, 1);
+
+	clk_prepare_enable(phy->clk);
+	msleep(1);
+
+	val = readl(base + USB_SUSP_CTRL);
+	val |= UHSIC_RESET;
+	writel(val, base + USB_SUSP_CTRL);
+
+	val = readl(base + ULPI_TIMING_CTRL_0);
+	val |= ULPI_OUTPUT_PINMUX_BYP | ULPI_CLKOUT_PINMUX_BYP;
+	writel(val, base + ULPI_TIMING_CTRL_0);
+
+	val = readl(base + USB_SUSP_CTRL);
+	val |= ULPI_PHY_ENABLE;
+	writel(val, base + USB_SUSP_CTRL);
+
+	val = 0;
+	writel(val, base + ULPI_TIMING_CTRL_1);
+
+	val |= ULPI_DATA_TRIMMER_SEL(4);
+	val |= ULPI_STPDIRNXT_TRIMMER_SEL(4);
+	val |= ULPI_DIR_TRIMMER_SEL(4);
+	writel(val, base + ULPI_TIMING_CTRL_1);
+	udelay(10);
+
+	val |= ULPI_DATA_TRIMMER_LOAD;
+	val |= ULPI_STPDIRNXT_TRIMMER_LOAD;
+	val |= ULPI_DIR_TRIMMER_LOAD;
+	writel(val, base + ULPI_TIMING_CTRL_1);
+
+	/* Fix VbusInvalid due to floating VBUS */
+	ret = usb_phy_io_write(phy->ulpi, 0x40, 0x08);
+	if (ret) {
+		pr_err("%s: ulpi write failed\n", __func__);
+		return ret;
+	}
+
+	ret = usb_phy_io_write(phy->ulpi, 0x80, 0x0B);
+	if (ret) {
+		pr_err("%s: ulpi write failed\n", __func__);
+		return ret;
+	}
+
+	val = readl(base + USB_PORTSC1);
+	val |= USB_PORTSC1_WKOC | USB_PORTSC1_WKDS | USB_PORTSC1_WKCN;
+	writel(val, base + USB_PORTSC1);
+
+	val = readl(base + USB_SUSP_CTRL);
+	val |= USB_SUSP_CLR;
+	writel(val, base + USB_SUSP_CTRL);
+	udelay(100);
+
+	val = readl(base + USB_SUSP_CTRL);
+	val &= ~USB_SUSP_CLR;
+	writel(val, base + USB_SUSP_CTRL);
+
+	return 0;
+}
+
+static int ulpi_phy_power_off(struct tegra_usb_phy *phy)
+{
+	unsigned long val;
+	void __iomem *base = phy->regs;
+	struct tegra_ulpi_config *config = phy->config;
+
+	/* Clear WKCN/WKDS/WKOC wake-on events that can cause the USB
+	 * Controller to immediately bring the ULPI PHY out of low power
+	 */
+	val = readl(base + USB_PORTSC1);
+	val &= ~(USB_PORTSC1_WKOC | USB_PORTSC1_WKDS | USB_PORTSC1_WKCN);
+	writel(val, base + USB_PORTSC1);
+
+	clk_disable(phy->clk);
+	return gpio_direction_output(config->reset_gpio, 0);
+}
+
+static int	tegra_phy_init(struct usb_phy *x)
+{
+	struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy);
+	struct tegra_ulpi_config *ulpi_config;
+	int err;
+
+	if (phy_is_ulpi(phy)) {
+		ulpi_config = phy->config;
+		phy->clk = clk_get_sys(NULL, ulpi_config->clk);
+		if (IS_ERR(phy->clk)) {
+			pr_err("%s: can't get ulpi clock\n", __func__);
+			err = -ENXIO;
+			goto err1;
+		}
+		if (!gpio_is_valid(ulpi_config->reset_gpio))
+			ulpi_config->reset_gpio =
+				of_get_named_gpio(phy->dev->of_node,
+						  "nvidia,phy-reset-gpio", 0);
+		if (!gpio_is_valid(ulpi_config->reset_gpio)) {
+			pr_err("%s: invalid reset gpio: %d\n", __func__,
+			       ulpi_config->reset_gpio);
+			err = -EINVAL;
+			goto err1;
+		}
+		gpio_request(ulpi_config->reset_gpio, "ulpi_phy_reset_b");
+		gpio_direction_output(ulpi_config->reset_gpio, 0);
+		phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);
+		phy->ulpi->io_priv = phy->regs + ULPI_VIEWPORT;
+	} else {
+		err = utmip_pad_open(phy);
+		if (err < 0)
+			goto err1;
+	}
+	return 0;
+err1:
+	clk_disable_unprepare(phy->pll_u);
+	clk_put(phy->pll_u);
+	return err;
+}
+
+static void tegra_usb_phy_close(struct usb_phy *x)
+{
+	struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy);
+
+	if (phy_is_ulpi(phy))
+		clk_put(phy->clk);
+	else
+		utmip_pad_close(phy);
+	clk_disable_unprepare(phy->pll_u);
+	clk_put(phy->pll_u);
+	kfree(phy);
+}
+
+static int tegra_usb_phy_power_on(struct tegra_usb_phy *phy)
+{
+	if (phy_is_ulpi(phy))
+		return ulpi_phy_power_on(phy);
+	else
+		return utmi_phy_power_on(phy);
+}
+
+static int tegra_usb_phy_power_off(struct tegra_usb_phy *phy)
+{
+	if (phy_is_ulpi(phy))
+		return ulpi_phy_power_off(phy);
+	else
+		return utmi_phy_power_off(phy);
+}
+
+static int	tegra_usb_phy_suspend(struct usb_phy *x, int suspend)
+{
+	struct tegra_usb_phy *phy = container_of(x, struct tegra_usb_phy, u_phy);
+	if (suspend)
+		return tegra_usb_phy_power_off(phy);
+	else
+		return tegra_usb_phy_power_on(phy);
+}
+
+struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
+	void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode)
+{
+	struct tegra_usb_phy *phy;
+	unsigned long parent_rate;
+	int i;
+	int err;
+
+	phy = kmalloc(sizeof(struct tegra_usb_phy), GFP_KERNEL);
+	if (!phy)
+		return ERR_PTR(-ENOMEM);
+
+	phy->instance = instance;
+	phy->regs = regs;
+	phy->config = config;
+	phy->mode = phy_mode;
+	phy->dev = dev;
+
+	if (!phy->config) {
+		if (phy_is_ulpi(phy)) {
+			pr_err("%s: ulpi phy configuration missing", __func__);
+			err = -EINVAL;
+			goto err0;
+		} else {
+			phy->config = &utmip_default[instance];
+		}
+	}
+
+	phy->pll_u = clk_get_sys(NULL, "pll_u");
+	if (IS_ERR(phy->pll_u)) {
+		pr_err("Can't get pll_u clock\n");
+		err = PTR_ERR(phy->pll_u);
+		goto err0;
+	}
+	clk_prepare_enable(phy->pll_u);
+
+	parent_rate = clk_get_rate(clk_get_parent(phy->pll_u));
+	for (i = 0; i < ARRAY_SIZE(tegra_freq_table); i++) {
+		if (tegra_freq_table[i].freq == parent_rate) {
+			phy->freq = &tegra_freq_table[i];
+			break;
+		}
+	}
+	if (!phy->freq) {
+		pr_err("invalid pll_u parent rate %ld\n", parent_rate);
+		err = -EINVAL;
+		goto err1;
+	}
+
+	phy->u_phy.init = tegra_phy_init;
+	phy->u_phy.shutdown = tegra_usb_phy_close;
+	phy->u_phy.set_suspend = tegra_usb_phy_suspend;
+
+	return phy;
+
+err1:
+	clk_disable_unprepare(phy->pll_u);
+	clk_put(phy->pll_u);
+err0:
+	kfree(phy);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(tegra_usb_phy_open);
+
+void tegra_usb_phy_preresume(struct tegra_usb_phy *phy)
+{
+	if (!phy_is_ulpi(phy))
+		utmi_phy_preresume(phy);
+}
+EXPORT_SYMBOL_GPL(tegra_usb_phy_preresume);
+
+void tegra_usb_phy_postresume(struct tegra_usb_phy *phy)
+{
+	if (!phy_is_ulpi(phy))
+		utmi_phy_postresume(phy);
+}
+EXPORT_SYMBOL_GPL(tegra_usb_phy_postresume);
+
+void tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy,
+				 enum tegra_usb_phy_port_speed port_speed)
+{
+	if (!phy_is_ulpi(phy))
+		utmi_phy_restore_start(phy, port_speed);
+}
+EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_start);
+
+void tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy)
+{
+	if (!phy_is_ulpi(phy))
+		utmi_phy_restore_end(phy);
+}
+EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end);
+
+void tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy)
+{
+	if (!phy_is_ulpi(phy))
+		utmi_phy_clk_disable(phy);
+}
+EXPORT_SYMBOL_GPL(tegra_usb_phy_clk_disable);
+
+void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy)
+{
+	if (!phy_is_ulpi(phy))
+		utmi_phy_clk_enable(phy);
+}
+EXPORT_SYMBOL_GPL(tegra_usb_phy_clk_enable);
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 8c9bb1ad306..072edc1cc55 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -432,17 +432,16 @@ static int usbhs_probe(struct platform_device *pdev)
 	}
 
 	/* usb private data */
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
 		dev_err(&pdev->dev, "Could not allocate priv\n");
 		return -ENOMEM;
 	}
 
-	priv->base = ioremap_nocache(res->start, resource_size(res));
+	priv->base = devm_request_and_ioremap(&pdev->dev, res);
 	if (!priv->base) {
 		dev_err(&pdev->dev, "ioremap error.\n");
-		ret = -ENOMEM;
-		goto probe_end_kfree;
+		return -ENOMEM;
 	}
 
 	/*
@@ -485,7 +484,7 @@ static int usbhs_probe(struct platform_device *pdev)
 	/* call pipe and module init */
 	ret = usbhs_pipe_probe(priv);
 	if (ret < 0)
-		goto probe_end_iounmap;
+		return ret;
 
 	ret = usbhs_fifo_probe(priv);
 	if (ret < 0)
@@ -546,10 +545,6 @@ probe_end_fifo_exit:
 	usbhs_fifo_remove(priv);
 probe_end_pipe_exit:
 	usbhs_pipe_remove(priv);
-probe_end_iounmap:
-	iounmap(priv->base);
-probe_end_kfree:
-	kfree(priv);
 
 	dev_info(&pdev->dev, "probe failed\n");
 
@@ -576,8 +571,6 @@ static int __devexit usbhs_remove(struct platform_device *pdev)
 	usbhs_mod_remove(priv);
 	usbhs_fifo_remove(priv);
 	usbhs_pipe_remove(priv);
-	iounmap(priv->base);
-	kfree(priv);
 
 	return 0;
 }
@@ -603,12 +596,12 @@ static int usbhsc_resume(struct device *dev)
 	struct usbhs_priv *priv = dev_get_drvdata(dev);
 	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 
-	usbhs_platform_call(priv, phy_reset, pdev);
-
 	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
 		usbhsc_power_ctrl(priv, 1);
 
-	usbhsc_hotplug(priv);
+	usbhs_platform_call(priv, phy_reset, pdev);
+
+	usbhsc_drvcllbck_notify_hotplug(pdev);
 
 	return 0;
 }
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index ecd173032fd..143c4e9e1be 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -818,7 +818,7 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
 	    usbhs_pipe_is_dcp(pipe))
 		goto usbhsf_pio_prepare_push;
 
-	if (len % 4) /* 32bit alignment */
+	if (len & 0x7) /* 8byte alignment */
 		goto usbhsf_pio_prepare_push;
 
 	if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */
@@ -905,7 +905,7 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done)
 	/* use PIO if packet is less than pio_dma_border */
 	len = usbhsf_fifo_rcv_len(priv, fifo);
 	len = min(pkt->length - pkt->actual, len);
-	if (len % 4) /* 32bit alignment */
+	if (len & 0x7) /* 8byte alignment */
 		goto usbhsf_pio_prepare_pop_unselect;
 
 	if (len < usbhs_get_dparam(priv, pio_dma_border))
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 82a628f96c0..35c5208f324 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -209,14 +209,18 @@ int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state)
 	return (int)irq_state->intsts0 & CTSQ_MASK;
 }
 
-static void usbhs_status_get_each_irq(struct usbhs_priv *priv,
-				      struct usbhs_irq_state *state)
+static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
+				     struct usbhs_irq_state *state)
 {
 	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+	u16 intenb0, intenb1;
 
 	state->intsts0 = usbhs_read(priv, INTSTS0);
 	state->intsts1 = usbhs_read(priv, INTSTS1);
 
+	intenb0 = usbhs_read(priv, INTENB0);
+	intenb1 = usbhs_read(priv, INTENB1);
+
 	/* mask */
 	if (mod) {
 		state->brdysts = usbhs_read(priv, BRDYSTS);
@@ -226,6 +230,20 @@ static void usbhs_status_get_each_irq(struct usbhs_priv *priv,
 		state->bempsts &= mod->irq_bempsts;
 		state->brdysts &= mod->irq_brdysts;
 	}
+
+	/*
+	 * Check whether the irq enable registers and the irq status are set
+	 * when IRQF_SHARED is set.
+	 */
+	if (priv->irqflags & IRQF_SHARED) {
+		if (!(intenb0 & state->intsts0) &&
+		    !(intenb1 & state->intsts1) &&
+		    !(state->bempsts) &&
+		    !(state->brdysts))
+			return -EIO;
+	}
+
+	return 0;
 }
 
 /*
@@ -238,7 +256,8 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
 	struct usbhs_priv *priv = data;
 	struct usbhs_irq_state irq_state;
 
-	usbhs_status_get_each_irq(priv, &irq_state);
+	if (usbhs_status_get_each_irq(priv, &irq_state) < 0)
+		return IRQ_NONE;
 
 	/*
 	 * clear interrupt
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index 1834cf50888..9b69a132329 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1266,6 +1266,12 @@ static int usbhsh_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 	return ret;
 }
 
+static int usbhsh_bus_nop(struct usb_hcd *hcd)
+{
+	/* nothing to do */
+	return 0;
+}
+
 static struct hc_driver usbhsh_driver = {
 	.description =		usbhsh_hcd_name,
 	.hcd_priv_size =	sizeof(struct usbhsh_hpriv),
@@ -1290,6 +1296,8 @@ static struct hc_driver usbhsh_driver = {
 	 */
 	.hub_status_data =	usbhsh_hub_status_data,
 	.hub_control =		usbhsh_hub_control,
+	.bus_suspend =		usbhsh_bus_nop,
+	.bus_resume =		usbhsh_bus_nop,
 };
 
 /*
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 325d2910f9f..76f46224173 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -42,11 +42,6 @@ config USB_SERIAL_CONSOLE
 
 	  If unsure, say N.
 
-config USB_EZUSB
-	bool "Functions for loading firmware on EZUSB chips"
-	help
-	    Say Y here if you need EZUSB device support.
-
 config USB_SERIAL_GENERIC
 	bool "USB Generic Serial Driver"
 	help
@@ -94,7 +89,7 @@ config USB_SERIAL_CH341
 
 config USB_SERIAL_WHITEHEAT
 	tristate "USB ConnectTech WhiteHEAT Serial Driver"
-	select USB_EZUSB
+	select USB_EZUSB_FX2
 	help
 	  Say Y here if you want to use a ConnectTech WhiteHEAT 4 port
 	  USB to serial converter device.
@@ -281,7 +276,7 @@ config USB_SERIAL_IUU
 
 config USB_SERIAL_KEYSPAN_PDA
 	tristate "USB Keyspan PDA Single Port Serial Driver"
-	select USB_EZUSB
+	select USB_EZUSB_FX2
 	help
 	  Say Y here if you want to use a Keyspan PDA single port USB to
 	  serial converter device.  This driver makes use of firmware
@@ -292,7 +287,7 @@ config USB_SERIAL_KEYSPAN_PDA
 
 config USB_SERIAL_KEYSPAN
 	tristate "USB Keyspan USA-xxx Serial Driver"
-	select USB_EZUSB
+	select USB_EZUSB_FX2
 	---help---
 	  Say Y here if you want to use Keyspan USB to serial converter
 	  devices.  This driver makes use of Keyspan's official firmware
@@ -596,7 +591,7 @@ config USB_SERIAL_CYBERJACK
 
 config USB_SERIAL_XIRCOM
 	tristate "USB Xircom / Entregra Single Port Serial Driver"
-	select USB_EZUSB
+	select USB_EZUSB_FX2
 	help
 	  Say Y here if you want to use a Xircom or Entregra single port USB to
 	  serial converter device.  This driver makes use of firmware
@@ -660,6 +655,14 @@ config USB_SERIAL_ZIO
 	  To compile this driver as a module, choose M here: the
 	  module will be called zio.
 
+config USB_SERIAL_ZTE
+	tristate "ZTE USB serial driver"
+	help
+	  Say Y here if you want to use a ZTE USB to serial device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called zte.
+
 config USB_SERIAL_SSU100
 	tristate "USB Quatech SSU-100 Single Port Serial Driver"
 	help
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 1dc483a8bfc..3b3e7308d47 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_USB_SERIAL)			+= usbserial.o
 usbserial-y := usb-serial.o generic.o bus.o
 
 usbserial-$(CONFIG_USB_SERIAL_CONSOLE)	+= console.o
-usbserial-$(CONFIG_USB_EZUSB)		+= ezusb.o
 
 obj-$(CONFIG_USB_SERIAL_AIRCABLE)		+= aircable.o
 obj-$(CONFIG_USB_SERIAL_ARK3116)		+= ark3116.o
@@ -63,3 +62,4 @@ obj-$(CONFIG_USB_SERIAL_WHITEHEAT)		+= whiteheat.o
 obj-$(CONFIG_USB_SERIAL_XIRCOM)			+= keyspan_pda.o
 obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL)		+= vivopay-serial.o
 obj-$(CONFIG_USB_SERIAL_ZIO)			+= zio.o
+obj-$(CONFIG_USB_SERIAL_ZTE)			+= zte_ev.o
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index d634e663563..54e1bb6372e 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -52,8 +52,6 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
-static bool debug;
-
 /* Vendor and Product ID */
 #define AIRCABLE_VID		0x16CA
 #define AIRCABLE_USB_PID	0x1502
@@ -196,6 +194,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index f8ce97d8b0a..cf2522c397d 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -37,7 +37,6 @@
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
 
-static bool debug;
 /*
  * Version information
  */
@@ -215,7 +214,7 @@ static void ark3116_release(struct usb_serial *serial)
 
 static void ark3116_init_termios(struct tty_struct *tty)
 {
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	*termios = tty_std_termios;
 	termios->c_cflag = B9600 | CS8
 				      | CREAD | HUPCL | CLOCAL;
@@ -229,7 +228,7 @@ static void ark3116_set_termios(struct tty_struct *tty,
 {
 	struct usb_serial *serial = port->serial;
 	struct ark3116_private *priv = usb_get_serial_port_data(port);
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	unsigned int cflag = termios->c_cflag;
 	int bps = tty_get_baud_rate(tty);
 	int quot;
@@ -650,8 +649,7 @@ static void ark3116_read_int_callback(struct urb *urb)
 		/*
 		 * Not sure what this data meant...
 		 */
-		usb_serial_debug_data(debug, &port->dev,
-				      __func__,
+		usb_serial_debug_data(&port->dev, __func__,
 				      urb->actual_length,
 				      urb->transfer_buffer);
 		break;
@@ -750,9 +748,6 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable debug");
-
 /*
  * The following describes what I learned from studying the old
  * ark3116.c driver, disassembling the windows driver, and some lucky
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 6b736563295..99449424193 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -37,8 +37,6 @@
 #include <linux/usb/serial.h>
 #include "belkin_sa.h"
 
-static bool debug;
-
 /*
  * Version Information
  */
@@ -206,8 +204,7 @@ static void belkin_sa_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-					urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	/* Handle known interrupt data */
 	/* ignore data[0] and data[1] */
@@ -307,7 +304,7 @@ static void belkin_sa_set_termios(struct tty_struct *tty,
 	unsigned long control_state;
 	int bad_flow_control;
 	speed_t baud;
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 
 	iflag = termios->c_iflag;
 	cflag = termios->c_cflag;
@@ -515,6 +512,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c
index f398d1e3447..c15f2e7cefc 100644
--- a/drivers/usb/serial/bus.c
+++ b/drivers/usb/serial/bus.c
@@ -61,18 +61,23 @@ static int usb_serial_device_probe(struct device *dev)
 		goto exit;
 	}
 
+	/* make sure suspend/resume doesn't race against port_probe */
+	retval = usb_autopm_get_interface(port->serial->interface);
+	if (retval)
+		goto exit;
+
 	driver = port->serial->type;
 	if (driver->port_probe) {
 		retval = driver->port_probe(port);
 		if (retval)
-			goto exit;
+			goto exit_with_autopm;
 	}
 
 	retval = device_create_file(dev, &dev_attr_port_number);
 	if (retval) {
 		if (driver->port_remove)
 			retval = driver->port_remove(port);
-		goto exit;
+		goto exit_with_autopm;
 	}
 
 	minor = port->number;
@@ -81,6 +86,8 @@ static int usb_serial_device_probe(struct device *dev)
 		 "%s converter now attached to ttyUSB%d\n",
 		 driver->description, minor);
 
+exit_with_autopm:
+	usb_autopm_put_interface(port->serial->interface);
 exit:
 	return retval;
 }
@@ -96,6 +103,9 @@ static int usb_serial_device_remove(struct device *dev)
 	if (!port)
 		return -ENODEV;
 
+	/* make sure suspend/resume doesn't race against port_remove */
+	usb_autopm_get_interface(port->serial->interface);
+
 	device_remove_file(&port->dev, &dev_attr_port_number);
 
 	driver = port->serial->type;
@@ -107,6 +117,7 @@ static int usb_serial_device_remove(struct device *dev)
 	dev_info(dev, "%s converter now disconnected from ttyUSB%d\n",
 		 driver->description, minor);
 
+	usb_autopm_put_interface(port->serial->interface);
 	return retval;
 }
 
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index cabd1b15ddc..e9c7046ae35 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -70,8 +70,6 @@
 #define CH341_NBREAK_BITS_REG2 0x40
 
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x4348, 0x5523) },
 	{ USB_DEVICE(0x1a86, 0x7523) },
@@ -93,8 +91,9 @@ static int ch341_control_out(struct usb_device *dev, u8 request,
 			     u16 value, u16 index)
 {
 	int r;
-	dbg("ch341_control_out(%02x,%02x,%04x,%04x)", USB_DIR_OUT|0x40,
-		(int)request, (int)value, (int)index);
+
+	dev_dbg(&dev->dev, "ch341_control_out(%02x,%02x,%04x,%04x)\n",
+		USB_DIR_OUT|0x40, (int)request, (int)value, (int)index);
 
 	r = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
@@ -108,8 +107,10 @@ static int ch341_control_in(struct usb_device *dev,
 			    char *buf, unsigned bufsize)
 {
 	int r;
-	dbg("ch341_control_in(%02x,%02x,%04x,%04x,%p,%u)", USB_DIR_IN|0x40,
-		(int)request, (int)value, (int)index, buf, (int)bufsize);
+
+	dev_dbg(&dev->dev, "ch341_control_in(%02x,%02x,%04x,%04x,%p,%u)\n",
+		USB_DIR_IN|0x40, (int)request, (int)value, (int)index, buf,
+		(int)bufsize);
 
 	r = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
@@ -320,7 +321,7 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port)
 	if (r)
 		goto out;
 
-	dbg("%s - submitting interrupt urb", __func__);
+	dev_dbg(&port->dev, "%s - submitting interrupt urb", __func__);
 	r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (r) {
 		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
@@ -390,19 +391,19 @@ static void ch341_break_ctl(struct tty_struct *tty, int break_state)
 				__func__, r);
 		goto out;
 	}
-	dbg("%s - initial ch341 break register contents - reg1: %x, reg2: %x",
-			__func__, break_reg[0], break_reg[1]);
+	dev_dbg(&port->dev, "%s - initial ch341 break register contents - reg1: %x, reg2: %x\n",
+		__func__, break_reg[0], break_reg[1]);
 	if (break_state != 0) {
-		dbg("%s - Enter break state requested", __func__);
+		dev_dbg(&port->dev, "%s - Enter break state requested\n", __func__);
 		break_reg[0] &= ~CH341_NBREAK_BITS_REG1;
 		break_reg[1] &= ~CH341_NBREAK_BITS_REG2;
 	} else {
-		dbg("%s - Leave break state requested", __func__);
+		dev_dbg(&port->dev, "%s - Leave break state requested\n", __func__);
 		break_reg[0] |= CH341_NBREAK_BITS_REG1;
 		break_reg[1] |= CH341_NBREAK_BITS_REG2;
 	}
-	dbg("%s - New ch341 break register contents - reg1: %x, reg2: %x",
-			__func__, break_reg[0], break_reg[1]);
+	dev_dbg(&port->dev, "%s - New ch341 break register contents - reg1: %x, reg2: %x\n",
+		__func__, break_reg[0], break_reg[1]);
 	reg_contents = get_unaligned_le16(break_reg);
 	r = ch341_control_out(port->serial->dev, CH341_REQ_WRITE_REG,
 			ch341_break_reg, reg_contents);
@@ -451,16 +452,16 @@ static void ch341_read_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-		    urb->status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
+			__func__, urb->status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-		    urb->status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n",
+			__func__, urb->status);
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
+	usb_serial_debug_data(&port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	if (actual_length >= 4) {
@@ -536,15 +537,16 @@ static int ch341_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
+
+	dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, port->number, cmd);
 
 	switch (cmd) {
 	case TIOCMIWAIT:
-		dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
+		dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__,  port->number);
 		return wait_modem_info(port, arg);
 
 	default:
-		dbg("%s not supported = 0x%04x", __func__, cmd);
+		dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd);
 		break;
 	}
 
@@ -572,7 +574,7 @@ static int ch341_tiocmget(struct tty_struct *tty)
 		  | ((status & CH341_BIT_RI)	? TIOCM_RI  : 0)
 		  | ((status & CH341_BIT_DCD)	? TIOCM_CD  : 0);
 
-	dbg("%s - result = %x", __func__, result);
+	dev_dbg(&port->dev, "%s - result = %x\n", __func__, result);
 
 	return result;
 }
@@ -617,6 +619,3 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index b9cca6dcde0..5f3bcd31e20 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -11,6 +11,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -20,8 +22,6 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
-static int debug;
-
 struct usbcons_info {
 	int			magic;
 	int			break_flag;
@@ -68,8 +68,6 @@ static int usb_console_setup(struct console *co, char *options)
 	struct tty_struct *tty = NULL;
 	struct ktermios dummy;
 
-	dbg("%s", __func__);
-
 	if (options) {
 		baud = simple_strtoul(options, NULL, 10);
 		s = options;
@@ -113,8 +111,7 @@ static int usb_console_setup(struct console *co, char *options)
 	serial = usb_serial_get_by_index(co->index);
 	if (serial == NULL) {
 		/* no device is connected yet, sorry :( */
-		printk(KERN_ERR "No USB device connected to ttyUSB%i\n",
-		       co->index);
+		pr_err("No USB device connected to ttyUSB%i\n", co->index);
 		return -ENODEV;
 	}
 
@@ -165,8 +162,8 @@ static int usb_console_setup(struct console *co, char *options)
 		}
 
 		if (serial->type->set_termios) {
-			tty->termios->c_cflag = cflag;
-			tty_termios_encode_baud_rate(tty->termios, baud, baud);
+			tty->termios.c_cflag = cflag;
+			tty_termios_encode_baud_rate(&tty->termios, baud, baud);
 			memset(&dummy, 0, sizeof(struct ktermios));
 			serial->type->set_termios(tty, port, &dummy);
 
@@ -213,10 +210,10 @@ static void usb_console_write(struct console *co,
 	if (count == 0)
 		return;
 
-	dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
+	pr_debug("%s - port %d, %d byte(s)\n", __func__, port->number, count);
 
 	if (!port->port.console) {
-		dbg("%s - port not opened", __func__);
+		pr_debug("%s - port not opened\n", __func__);
 		return;
 	}
 
@@ -237,7 +234,7 @@ static void usb_console_write(struct console *co,
 			retval = serial->type->write(NULL, port, buf, i);
 		else
 			retval = usb_serial_generic_write(NULL, port, buf, i);
-		dbg("%s - return value : %d", __func__, retval);
+		pr_debug("%s - return value : %d\n", __func__, retval);
 		if (lf) {
 			/* append CR after LF */
 			unsigned char cr = 13;
@@ -247,7 +244,7 @@ static void usb_console_write(struct console *co,
 			else
 				retval = usb_serial_generic_write(NULL,
 								port, &cr, 1);
-			dbg("%s - return value : %d", __func__, retval);
+			pr_debug("%s - return value : %d\n", __func__, retval);
 		}
 		buf += i;
 		count -= i;
@@ -284,10 +281,8 @@ void usb_serial_console_disconnect(struct usb_serial *serial)
 	}
 }
 
-void usb_serial_console_init(int serial_debug, int minor)
+void usb_serial_console_init(int minor)
 {
-	debug = serial_debug;
-
 	if (minor == 0) {
 		/*
 		 * Call register_console() if this is the first device plugged
@@ -302,7 +297,7 @@ void usb_serial_console_init(int serial_debug, int minor)
 		 * register_console). console_write() is called immediately
 		 * from register_console iff CON_PRINTBUFFER is set in flags.
 		 */
-		dbg("registering the USB serial console.");
+		pr_debug("registering the USB serial console.\n");
 		register_console(&usbcons);
 	}
 }
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 1e71079ce33..28af5acc336 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -52,8 +52,6 @@ static int cp210x_startup(struct usb_serial *);
 static void cp210x_release(struct usb_serial *);
 static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
 	{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
@@ -304,9 +302,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
 	kfree(buf);
 
 	if (result != size) {
-		dbg("%s - Unable to send config request, "
-				"request=0x%x size=%d result=%d",
-				__func__, request, size, result);
+		dev_dbg(&port->dev, "%s - Unable to send config request, request=0x%x size=%d result=%d\n",
+			__func__, request, size, result);
 		if (result > 0)
 			result = -EPROTO;
 
@@ -361,9 +358,8 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
 	kfree(buf);
 
 	if ((size > 2 && result != size) || result < 0) {
-		dbg("%s - Unable to send request, "
-				"request=0x%x size=%d result=%d",
-				__func__, request, size, result);
+		dev_dbg(&port->dev, "%s - Unable to send request, request=0x%x size=%d result=%d\n",
+			__func__, request, size, result);
 		if (result > 0)
 			result = -EPROTO;
 
@@ -469,7 +465,7 @@ static void cp210x_get_termios(struct tty_struct *tty,
 
 	if (tty) {
 		cp210x_get_termios_port(tty->driver_data,
-			&tty->termios->c_cflag, &baud);
+			&tty->termios.c_cflag, &baud);
 		tty_encode_baud_rate(tty, baud, baud);
 	}
 
@@ -487,13 +483,14 @@ static void cp210x_get_termios(struct tty_struct *tty,
 static void cp210x_get_termios_port(struct usb_serial_port *port,
 	unsigned int *cflagp, unsigned int *baudp)
 {
+	struct device *dev = &port->dev;
 	unsigned int cflag, modem_ctl[4];
 	unsigned int baud;
 	unsigned int bits;
 
 	cp210x_get_config(port, CP210X_GET_BAUDRATE, &baud, 4);
 
-	dbg("%s - baud rate = %d", __func__, baud);
+	dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud);
 	*baudp = baud;
 
 	cflag = *cflagp;
@@ -502,31 +499,30 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
 	cflag &= ~CSIZE;
 	switch (bits & BITS_DATA_MASK) {
 	case BITS_DATA_5:
-		dbg("%s - data bits = 5", __func__);
+		dev_dbg(dev, "%s - data bits = 5\n", __func__);
 		cflag |= CS5;
 		break;
 	case BITS_DATA_6:
-		dbg("%s - data bits = 6", __func__);
+		dev_dbg(dev, "%s - data bits = 6\n", __func__);
 		cflag |= CS6;
 		break;
 	case BITS_DATA_7:
-		dbg("%s - data bits = 7", __func__);
+		dev_dbg(dev, "%s - data bits = 7\n", __func__);
 		cflag |= CS7;
 		break;
 	case BITS_DATA_8:
-		dbg("%s - data bits = 8", __func__);
+		dev_dbg(dev, "%s - data bits = 8\n", __func__);
 		cflag |= CS8;
 		break;
 	case BITS_DATA_9:
-		dbg("%s - data bits = 9 (not supported, using 8 data bits)",
-								__func__);
+		dev_dbg(dev, "%s - data bits = 9 (not supported, using 8 data bits)\n", __func__);
 		cflag |= CS8;
 		bits &= ~BITS_DATA_MASK;
 		bits |= BITS_DATA_8;
 		cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
 		break;
 	default:
-		dbg("%s - Unknown number of data bits, using 8", __func__);
+		dev_dbg(dev, "%s - Unknown number of data bits, using 8\n", __func__);
 		cflag |= CS8;
 		bits &= ~BITS_DATA_MASK;
 		bits |= BITS_DATA_8;
@@ -536,29 +532,29 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
 
 	switch (bits & BITS_PARITY_MASK) {
 	case BITS_PARITY_NONE:
-		dbg("%s - parity = NONE", __func__);
+		dev_dbg(dev, "%s - parity = NONE\n", __func__);
 		cflag &= ~PARENB;
 		break;
 	case BITS_PARITY_ODD:
-		dbg("%s - parity = ODD", __func__);
+		dev_dbg(dev, "%s - parity = ODD\n", __func__);
 		cflag |= (PARENB|PARODD);
 		break;
 	case BITS_PARITY_EVEN:
-		dbg("%s - parity = EVEN", __func__);
+		dev_dbg(dev, "%s - parity = EVEN\n", __func__);
 		cflag &= ~PARODD;
 		cflag |= PARENB;
 		break;
 	case BITS_PARITY_MARK:
-		dbg("%s - parity = MARK", __func__);
+		dev_dbg(dev, "%s - parity = MARK\n", __func__);
 		cflag |= (PARENB|PARODD|CMSPAR);
 		break;
 	case BITS_PARITY_SPACE:
-		dbg("%s - parity = SPACE", __func__);
+		dev_dbg(dev, "%s - parity = SPACE\n", __func__);
 		cflag &= ~PARODD;
 		cflag |= (PARENB|CMSPAR);
 		break;
 	default:
-		dbg("%s - Unknown parity mode, disabling parity", __func__);
+		dev_dbg(dev, "%s - Unknown parity mode, disabling parity\n", __func__);
 		cflag &= ~PARENB;
 		bits &= ~BITS_PARITY_MASK;
 		cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
@@ -568,21 +564,19 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
 	cflag &= ~CSTOPB;
 	switch (bits & BITS_STOP_MASK) {
 	case BITS_STOP_1:
-		dbg("%s - stop bits = 1", __func__);
+		dev_dbg(dev, "%s - stop bits = 1\n", __func__);
 		break;
 	case BITS_STOP_1_5:
-		dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)",
-								__func__);
+		dev_dbg(dev, "%s - stop bits = 1.5 (not supported, using 1 stop bit)\n", __func__);
 		bits &= ~BITS_STOP_MASK;
 		cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
 		break;
 	case BITS_STOP_2:
-		dbg("%s - stop bits = 2", __func__);
+		dev_dbg(dev, "%s - stop bits = 2\n", __func__);
 		cflag |= CSTOPB;
 		break;
 	default:
-		dbg("%s - Unknown number of stop bits, using 1 stop bit",
-								__func__);
+		dev_dbg(dev, "%s - Unknown number of stop bits, using 1 stop bit\n", __func__);
 		bits &= ~BITS_STOP_MASK;
 		cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
 		break;
@@ -590,10 +584,10 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
 
 	cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
 	if (modem_ctl[0] & 0x0008) {
-		dbg("%s - flow control = CRTSCTS", __func__);
+		dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
 		cflag |= CRTSCTS;
 	} else {
-		dbg("%s - flow control = NONE", __func__);
+		dev_dbg(dev, "%s - flow control = NONE\n", __func__);
 		cflag &= ~CRTSCTS;
 	}
 
@@ -631,7 +625,7 @@ static void cp210x_change_speed(struct tty_struct *tty,
 {
 	u32 baud;
 
-	baud = tty->termios->c_ospeed;
+	baud = tty->termios.c_ospeed;
 
 	/* This maps the requested rate to a rate valid on cp2102 or cp2103,
 	 * or to an arbitrary rate in [1M,2M].
@@ -640,7 +634,7 @@ static void cp210x_change_speed(struct tty_struct *tty,
 	 */
 	baud = cp210x_quantise_baudrate(baud);
 
-	dbg("%s - setting baud rate to %u", __func__, baud);
+	dev_dbg(&port->dev, "%s - setting baud rate to %u\n", __func__, baud);
 	if (cp210x_set_config(port, CP210X_SET_BAUDRATE, &baud,
 							sizeof(baud))) {
 		dev_warn(&port->dev, "failed to set baud rate to %u\n", baud);
@@ -656,19 +650,20 @@ static void cp210x_change_speed(struct tty_struct *tty,
 static void cp210x_set_termios(struct tty_struct *tty,
 		struct usb_serial_port *port, struct ktermios *old_termios)
 {
+	struct device *dev = &port->dev;
 	unsigned int cflag, old_cflag;
 	unsigned int bits;
 	unsigned int modem_ctl[4];
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(dev, "%s - port %d\n", __func__, port->number);
 
 	if (!tty)
 		return;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 	old_cflag = old_termios->c_cflag;
 
-	if (tty->termios->c_ospeed != old_termios->c_ospeed)
+	if (tty->termios.c_ospeed != old_termios->c_ospeed)
 		cp210x_change_speed(tty, port, old_termios);
 
 	/* If the number of data bits is to be updated */
@@ -678,34 +673,31 @@ static void cp210x_set_termios(struct tty_struct *tty,
 		switch (cflag & CSIZE) {
 		case CS5:
 			bits |= BITS_DATA_5;
-			dbg("%s - data bits = 5", __func__);
+			dev_dbg(dev, "%s - data bits = 5\n", __func__);
 			break;
 		case CS6:
 			bits |= BITS_DATA_6;
-			dbg("%s - data bits = 6", __func__);
+			dev_dbg(dev, "%s - data bits = 6\n", __func__);
 			break;
 		case CS7:
 			bits |= BITS_DATA_7;
-			dbg("%s - data bits = 7", __func__);
+			dev_dbg(dev, "%s - data bits = 7\n", __func__);
 			break;
 		case CS8:
 			bits |= BITS_DATA_8;
-			dbg("%s - data bits = 8", __func__);
+			dev_dbg(dev, "%s - data bits = 8\n", __func__);
 			break;
 		/*case CS9:
 			bits |= BITS_DATA_9;
-			dbg("%s - data bits = 9", __func__);
+			dev_dbg(dev, "%s - data bits = 9\n", __func__);
 			break;*/
 		default:
-			dbg("cp210x driver does not "
-					"support the number of bits requested,"
-					" using 8 bit mode");
+			dev_dbg(dev, "cp210x driver does not support the number of bits requested, using 8 bit mode\n");
 				bits |= BITS_DATA_8;
 				break;
 		}
 		if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
-			dbg("Number of data bits requested "
-					"not supported by device");
+			dev_dbg(dev, "Number of data bits requested not supported by device\n");
 	}
 
 	if ((cflag     & (PARENB|PARODD|CMSPAR)) !=
@@ -714,25 +706,25 @@ static void cp210x_set_termios(struct tty_struct *tty,
 		bits &= ~BITS_PARITY_MASK;
 		if (cflag & PARENB) {
 			if (cflag & CMSPAR) {
-			    if (cflag & PARODD) {
-				    bits |= BITS_PARITY_MARK;
-				    dbg("%s - parity = MARK", __func__);
-			    } else {
-				    bits |= BITS_PARITY_SPACE;
-				    dbg("%s - parity = SPACE", __func__);
-			    }
+				if (cflag & PARODD) {
+					bits |= BITS_PARITY_MARK;
+					dev_dbg(dev, "%s - parity = MARK\n", __func__);
+				} else {
+					bits |= BITS_PARITY_SPACE;
+					dev_dbg(dev, "%s - parity = SPACE\n", __func__);
+				}
 			} else {
-			    if (cflag & PARODD) {
-				    bits |= BITS_PARITY_ODD;
-				    dbg("%s - parity = ODD", __func__);
-			    } else {
-				    bits |= BITS_PARITY_EVEN;
-				    dbg("%s - parity = EVEN", __func__);
-			    }
+				if (cflag & PARODD) {
+					bits |= BITS_PARITY_ODD;
+					dev_dbg(dev, "%s - parity = ODD\n", __func__);
+				} else {
+					bits |= BITS_PARITY_EVEN;
+					dev_dbg(dev, "%s - parity = EVEN\n", __func__);
+				}
 			}
 		}
 		if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
-			dbg("Parity mode not supported by device");
+			dev_dbg(dev, "Parity mode not supported by device\n");
 	}
 
 	if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
@@ -740,37 +732,36 @@ static void cp210x_set_termios(struct tty_struct *tty,
 		bits &= ~BITS_STOP_MASK;
 		if (cflag & CSTOPB) {
 			bits |= BITS_STOP_2;
-			dbg("%s - stop bits = 2", __func__);
+			dev_dbg(dev, "%s - stop bits = 2\n", __func__);
 		} else {
 			bits |= BITS_STOP_1;
-			dbg("%s - stop bits = 1", __func__);
+			dev_dbg(dev, "%s - stop bits = 1\n", __func__);
 		}
 		if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
-			dbg("Number of stop bits requested "
-					"not supported by device");
+			dev_dbg(dev, "Number of stop bits requested not supported by device\n");
 	}
 
 	if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
 		cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
-		dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
-				__func__, modem_ctl[0], modem_ctl[1],
-				modem_ctl[2], modem_ctl[3]);
+		dev_dbg(dev, "%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+			__func__, modem_ctl[0], modem_ctl[1],
+			modem_ctl[2], modem_ctl[3]);
 
 		if (cflag & CRTSCTS) {
 			modem_ctl[0] &= ~0x7B;
 			modem_ctl[0] |= 0x09;
 			modem_ctl[1] = 0x80;
-			dbg("%s - flow control = CRTSCTS", __func__);
+			dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
 		} else {
 			modem_ctl[0] &= ~0x7B;
 			modem_ctl[0] |= 0x01;
 			modem_ctl[1] |= 0x40;
-			dbg("%s - flow control = NONE", __func__);
+			dev_dbg(dev, "%s - flow control = NONE\n", __func__);
 		}
 
-		dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
-				__func__, modem_ctl[0], modem_ctl[1],
-				modem_ctl[2], modem_ctl[3]);
+		dev_dbg(dev, "%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+			__func__, modem_ctl[0], modem_ctl[1],
+			modem_ctl[2], modem_ctl[3]);
 		cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16);
 	}
 
@@ -805,7 +796,7 @@ static int cp210x_tiocmset_port(struct usb_serial_port *port,
 		control |= CONTROL_WRITE_DTR;
 	}
 
-	dbg("%s - control = 0x%.4x", __func__, control);
+	dev_dbg(&port->dev, "%s - control = 0x%.4x\n", __func__, control);
 
 	return cp210x_set_config(port, CP210X_SET_MHS, &control, 2);
 }
@@ -833,7 +824,7 @@ static int cp210x_tiocmget (struct tty_struct *tty)
 		|((control & CONTROL_RING)? TIOCM_RI  : 0)
 		|((control & CONTROL_DCD) ? TIOCM_CD  : 0);
 
-	dbg("%s - control = 0x%.2x", __func__, control);
+	dev_dbg(&port->dev, "%s - control = 0x%.2x\n", __func__, control);
 
 	return result;
 }
@@ -847,8 +838,8 @@ static void cp210x_break_ctl (struct tty_struct *tty, int break_state)
 		state = BREAK_OFF;
 	else
 		state = BREAK_ON;
-	dbg("%s - turning break %s", __func__,
-			state == BREAK_OFF ? "off" : "on");
+	dev_dbg(&port->dev, "%s - turning break %s\n", __func__,
+		state == BREAK_OFF ? "off" : "on");
 	cp210x_set_config(port, CP210X_SET_BREAK, &state, 2);
 }
 
@@ -865,7 +856,6 @@ static int cp210x_startup(struct usb_serial *serial)
 		if (!port_priv)
 			return -ENOMEM;
 
-		memset(port_priv, 0x00, sizeof(*port_priv));
 		port_priv->bInterfaceNumber =
 		    serial->interface->cur_altsetting->desc.bInterfaceNumber;
 
@@ -892,6 +882,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable verbose debugging messages");
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 3aa0b530f68..2a7aecc7223 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -43,8 +43,6 @@
 
 #define CYBERJACK_LOCAL_BUF_SIZE 32
 
-static bool debug;
-
 /*
  * Version Information
  */
@@ -136,7 +134,8 @@ static int cyberjack_startup(struct usb_serial *serial)
 		if (result)
 			dev_err(&serial->dev->dev,
 				"usb_submit_urb(read int) failed\n");
-		dbg("%s - usb_submit_urb(int urb)", __func__);
+		dev_dbg(&serial->dev->dev, "%s - usb_submit_urb(int urb)\n",
+			__func__);
 	}
 
 	return 0;
@@ -167,7 +166,7 @@ static int  cyberjack_open(struct tty_struct *tty,
 	unsigned long flags;
 	int result = 0;
 
-	dbg("%s - usb_clear_halt", __func__);
+	dev_dbg(&port->dev, "%s - usb_clear_halt\n", __func__);
 	usb_clear_halt(port->serial->dev, port->write_urb->pipe);
 
 	priv = usb_get_serial_port_data(port);
@@ -192,18 +191,19 @@ static void cyberjack_close(struct usb_serial_port *port)
 static int cyberjack_write(struct tty_struct *tty,
 	struct usb_serial_port *port, const unsigned char *buf, int count)
 {
+	struct device *dev = &port->dev;
 	struct cyberjack_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 	int result;
 	int wrexpected;
 
 	if (count == 0) {
-		dbg("%s - write request of 0 bytes", __func__);
+		dev_dbg(dev, "%s - write request of 0 bytes\n", __func__);
 		return 0;
 	}
 
 	if (!test_and_clear_bit(0, &port->write_urbs_free)) {
-		dbg("%s - already writing", __func__);
+		dev_dbg(dev, "%s - already writing\n", __func__);
 		return 0;
 	}
 
@@ -220,13 +220,12 @@ static int cyberjack_write(struct tty_struct *tty,
 	/* Copy data */
 	memcpy(priv->wrbuf + priv->wrfilled, buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-		priv->wrbuf + priv->wrfilled);
+	usb_serial_debug_data(dev, __func__, count, priv->wrbuf + priv->wrfilled);
 	priv->wrfilled += count;
 
 	if (priv->wrfilled >= 3) {
 		wrexpected = ((int)priv->wrbuf[2]<<8)+priv->wrbuf[1]+3;
-		dbg("%s - expected data: %d", __func__, wrexpected);
+		dev_dbg(dev, "%s - expected data: %d\n", __func__, wrexpected);
 	} else
 		wrexpected = sizeof(priv->wrbuf);
 
@@ -234,7 +233,7 @@ static int cyberjack_write(struct tty_struct *tty,
 		/* We have enough data to begin transmission */
 		int length;
 
-		dbg("%s - transmitting data (frame 1)", __func__);
+		dev_dbg(dev, "%s - transmitting data (frame 1)\n", __func__);
 		length = (wrexpected > port->bulk_out_size) ?
 					port->bulk_out_size : wrexpected;
 
@@ -258,11 +257,11 @@ static int cyberjack_write(struct tty_struct *tty,
 			return 0;
 		}
 
-		dbg("%s - priv->wrsent=%d", __func__, priv->wrsent);
-		dbg("%s - priv->wrfilled=%d", __func__, priv->wrfilled);
+		dev_dbg(dev, "%s - priv->wrsent=%d\n", __func__, priv->wrsent);
+		dev_dbg(dev, "%s - priv->wrfilled=%d\n", __func__, priv->wrfilled);
 
 		if (priv->wrsent >= priv->wrfilled) {
-			dbg("%s - buffer cleaned", __func__);
+			dev_dbg(dev, "%s - buffer cleaned\n", __func__);
 			memset(priv->wrbuf, 0, sizeof(priv->wrbuf));
 			priv->wrfilled = 0;
 			priv->wrsent = 0;
@@ -284,6 +283,7 @@ static void cyberjack_read_int_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	struct cyberjack_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	unsigned char *data = urb->transfer_buffer;
 	int status = urb->status;
 	int result;
@@ -292,8 +292,7 @@ static void cyberjack_read_int_callback(struct urb *urb)
 	if (status)
 		return;
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(dev, __func__, urb->actual_length, data);
 
 	/* React only to interrupts signaling a bulk_in transfer */
 	if (urb->actual_length == 4 && data[0] == 0x01) {
@@ -307,7 +306,7 @@ static void cyberjack_read_int_callback(struct urb *urb)
 		old_rdtodo = priv->rdtodo;
 
 		if (old_rdtodo + size < old_rdtodo) {
-			dbg("To many bulk_in urbs to do.");
+			dev_dbg(dev, "To many bulk_in urbs to do.\n");
 			spin_unlock(&priv->lock);
 			goto resubmit;
 		}
@@ -315,17 +314,16 @@ static void cyberjack_read_int_callback(struct urb *urb)
 		/* "+=" is probably more fault tollerant than "=" */
 		priv->rdtodo += size;
 
-		dbg("%s - rdtodo: %d", __func__, priv->rdtodo);
+		dev_dbg(dev, "%s - rdtodo: %d\n", __func__, priv->rdtodo);
 
 		spin_unlock(&priv->lock);
 
 		if (!old_rdtodo) {
 			result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 			if (result)
-				dev_err(&port->dev, "%s - failed resubmitting "
-					"read urb, error %d\n",
+				dev_err(dev, "%s - failed resubmitting read urb, error %d\n",
 					__func__, result);
-			dbg("%s - usb_submit_urb(read urb)", __func__);
+			dev_dbg(dev, "%s - usb_submit_urb(read urb)\n", __func__);
 		}
 	}
 
@@ -333,30 +331,30 @@ resubmit:
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 	if (result)
 		dev_err(&port->dev, "usb_submit_urb(read int) failed\n");
-	dbg("%s - usb_submit_urb(int urb)", __func__);
+	dev_dbg(dev, "%s - usb_submit_urb(int urb)\n", __func__);
 }
 
 static void cyberjack_read_bulk_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	struct cyberjack_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	struct tty_struct *tty;
 	unsigned char *data = urb->transfer_buffer;
 	short todo;
 	int result;
 	int status = urb->status;
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(dev, __func__, urb->actual_length, data);
 	if (status) {
-		dbg("%s - nonzero read bulk status received: %d",
-		    __func__, status);
+		dev_dbg(dev, "%s - nonzero read bulk status received: %d\n",
+			__func__, status);
 		return;
 	}
 
 	tty = tty_port_tty_get(&port->port);
 	if (!tty) {
-		dbg("%s - ignoring since device not open", __func__);
+		dev_dbg(dev, "%s - ignoring since device not open\n", __func__);
 		return;
 	}
 	if (urb->actual_length) {
@@ -376,15 +374,15 @@ static void cyberjack_read_bulk_callback(struct urb *urb)
 
 	spin_unlock(&priv->lock);
 
-	dbg("%s - rdtodo: %d", __func__, todo);
+	dev_dbg(dev, "%s - rdtodo: %d\n", __func__, todo);
 
 	/* Continue to read if we have still urbs to do. */
 	if (todo /* || (urb->actual_length==port->bulk_in_endpointAddress)*/) {
 		result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (result)
-			dev_err(&port->dev, "%s - failed resubmitting read "
-				"urb, error %d\n", __func__, result);
-		dbg("%s - usb_submit_urb(read urb)", __func__);
+			dev_err(dev, "%s - failed resubmitting read urb, error %d\n",
+				__func__, result);
+		dev_dbg(dev, "%s - usb_submit_urb(read urb)\n", __func__);
 	}
 }
 
@@ -392,12 +390,13 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	struct cyberjack_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	int status = urb->status;
 
 	set_bit(0, &port->write_urbs_free);
 	if (status) {
-		dbg("%s - nonzero write bulk status received: %d",
-		    __func__, status);
+		dev_dbg(dev, "%s - nonzero write bulk status received: %d\n",
+			__func__, status);
 		return;
 	}
 
@@ -407,7 +406,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
 	if (priv->wrfilled) {
 		int length, blksize, result;
 
-		dbg("%s - transmitting data (frame n)", __func__);
+		dev_dbg(dev, "%s - transmitting data (frame n)\n", __func__);
 
 		length = ((priv->wrfilled - priv->wrsent) > port->bulk_out_size) ?
 			port->bulk_out_size : (priv->wrfilled - priv->wrsent);
@@ -422,8 +421,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
 		/* send the data out the bulk port */
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (result) {
-			dev_err(&port->dev,
-				"%s - failed submitting write urb, error %d\n",
+			dev_err(dev, "%s - failed submitting write urb, error %d\n",
 				__func__, result);
 			/* Throw away data. No better idea what to do with it. */
 			priv->wrfilled = 0;
@@ -431,14 +429,14 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
 			goto exit;
 		}
 
-		dbg("%s - priv->wrsent=%d", __func__, priv->wrsent);
-		dbg("%s - priv->wrfilled=%d", __func__, priv->wrfilled);
+		dev_dbg(dev, "%s - priv->wrsent=%d\n", __func__, priv->wrsent);
+		dev_dbg(dev, "%s - priv->wrfilled=%d\n", __func__, priv->wrfilled);
 
 		blksize = ((int)priv->wrbuf[2]<<8)+priv->wrbuf[1]+3;
 
 		if (priv->wrsent >= priv->wrfilled ||
 					priv->wrsent >= blksize) {
-			dbg("%s - buffer cleaned", __func__);
+			dev_dbg(dev, "%s - buffer cleaned\n", __func__);
 			memset(priv->wrbuf, 0, sizeof(priv->wrbuf));
 			priv->wrfilled = 0;
 			priv->wrsent = 0;
@@ -456,6 +454,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index b78c34eb5d3..1befce21e17 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -46,7 +46,6 @@
 #include "cypress_m8.h"
 
 
-static bool debug;
 static bool stats;
 static int interval;
 static bool unstable_bauds;
@@ -263,8 +262,9 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 		 * safest speed for a part like that.
 		 */
 		if (new_rate > 4800) {
-			dbg("%s - failed setting baud rate, device incapable "
-			    "speed %d", __func__, new_rate);
+			dev_dbg(&port->dev,
+				"%s - failed setting baud rate, device incapable speed %d\n",
+				__func__, new_rate);
 			return -1;
 		}
 	}
@@ -274,8 +274,9 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 			/* 300 and 600 baud rates are supported under
 			 * the generic firmware, but are not used with
 			 * NMEA and SiRF protocols */
-			dbg("%s - failed setting baud rate, unsupported speed "
-			    "of %d on Earthmate GPS", __func__, new_rate);
+			dev_dbg(&port->dev,
+				"%s - failed setting baud rate, unsupported speed of %d on Earthmate GPS",
+				__func__, new_rate);
 			return -1;
 		}
 		break;
@@ -294,6 +295,7 @@ static int cypress_serial_control(struct tty_struct *tty,
 {
 	int new_baudrate = 0, retval = 0, tries = 0;
 	struct cypress_private *priv;
+	struct device *dev = &port->dev;
 	u8 *feature_buffer;
 	const unsigned int feature_len = 5;
 	unsigned long flags;
@@ -312,16 +314,16 @@ static int cypress_serial_control(struct tty_struct *tty,
 		/* 0 means 'Hang up' so doesn't change the true bit rate */
 		new_baudrate = priv->baud_rate;
 		if (baud_rate && baud_rate != priv->baud_rate) {
-			dbg("%s - baud rate is changing", __func__);
+			dev_dbg(dev, "%s - baud rate is changing\n", __func__);
 			retval = analyze_baud_rate(port, baud_rate);
 			if (retval >= 0) {
 				new_baudrate = retval;
-				dbg("%s - New baud rate set to %d",
-				    __func__, new_baudrate);
+				dev_dbg(dev, "%s - New baud rate set to %d\n",
+					__func__, new_baudrate);
 			}
 		}
-		dbg("%s - baud rate is being sent as %d",
-					__func__, new_baudrate);
+		dev_dbg(dev, "%s - baud rate is being sent as %d\n", __func__,
+			new_baudrate);
 
 		/* fill the feature_buffer with new configuration */
 		put_unaligned_le32(new_baudrate, feature_buffer);
@@ -333,9 +335,8 @@ static int cypress_serial_control(struct tty_struct *tty,
 		/* 1 bit gap */
 		feature_buffer[4] |= (reset << 7);   /* assign reset at end of byte, 1 bit space */
 
-		dbg("%s - device is being sent this feature report:",
-								__func__);
-		dbg("%s - %02X - %02X - %02X - %02X - %02X", __func__,
+		dev_dbg(dev, "%s - device is being sent this feature report:\n", __func__);
+		dev_dbg(dev, "%s - %02X - %02X - %02X - %02X - %02X\n", __func__,
 			feature_buffer[0], feature_buffer[1],
 			feature_buffer[2], feature_buffer[3],
 			feature_buffer[4]);
@@ -355,8 +356,8 @@ static int cypress_serial_control(struct tty_struct *tty,
 			 retval != -ENODEV);
 
 		if (retval != feature_len) {
-			dev_err(&port->dev, "%s - failed sending serial "
-				"line settings - %d\n", __func__, retval);
+			dev_err(dev, "%s - failed sending serial line settings - %d\n",
+				__func__, retval);
 			cypress_set_dead(port);
 		} else {
 			spin_lock_irqsave(&priv->lock, flags);
@@ -377,7 +378,7 @@ static int cypress_serial_control(struct tty_struct *tty,
 			retval = -ENOTTY;
 			goto out;
 		}
-		dbg("%s - retreiving serial line settings", __func__);
+		dev_dbg(dev, "%s - retreiving serial line settings\n", __func__);
 		do {
 			retval = usb_control_msg(port->serial->dev,
 					usb_rcvctrlpipe(port->serial->dev, 0),
@@ -392,8 +393,8 @@ static int cypress_serial_control(struct tty_struct *tty,
 						&& retval != -ENODEV);
 
 		if (retval != feature_len) {
-			dev_err(&port->dev, "%s - failed to retrieve serial "
-				"line settings - %d\n", __func__, retval);
+			dev_err(dev, "%s - failed to retrieve serial line settings - %d\n",
+				__func__, retval);
 			cypress_set_dead(port);
 			goto out;
 		} else {
@@ -474,14 +475,14 @@ static int generic_startup(struct usb_serial *serial)
 	if (interval > 0) {
 		priv->write_urb_interval = interval;
 		priv->read_urb_interval = interval;
-		dbg("%s - port %d read & write intervals forced to %d",
-		    __func__, port->number, interval);
+		dev_dbg(&port->dev, "%s - read & write intervals forced to %d\n",
+			__func__, interval);
 	} else {
 		priv->write_urb_interval = port->interrupt_out_urb->interval;
 		priv->read_urb_interval = port->interrupt_in_urb->interval;
-		dbg("%s - port %d intervals: read=%d write=%d",
-		    __func__, port->number,
-		    priv->read_urb_interval, priv->write_urb_interval);
+		dev_dbg(&port->dev, "%s - intervals: read=%d write=%d\n",
+			__func__, priv->read_urb_interval,
+			priv->write_urb_interval);
 	}
 	usb_set_serial_port_data(port, priv);
 
@@ -495,8 +496,7 @@ static int cypress_earthmate_startup(struct usb_serial *serial)
 	struct usb_serial_port *port = serial->port[0];
 
 	if (generic_startup(serial)) {
-		dbg("%s - Failed setting up port %d", __func__,
-				port->number);
+		dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);
 		return 1;
 	}
 
@@ -511,8 +511,9 @@ static int cypress_earthmate_startup(struct usb_serial *serial)
 		   handle GET_CONFIG requests; everything they've
 		   produced since that time crashes if this command is
 		   attempted :-( */
-		dbg("%s - Marking this device as unsafe for GET_CONFIG "
-		    "commands", __func__);
+		dev_dbg(&port->dev,
+			"%s - Marking this device as unsafe for GET_CONFIG commands\n",
+			__func__);
 		priv->get_cfg_unsafe = !0;
 	}
 
@@ -523,14 +524,14 @@ static int cypress_earthmate_startup(struct usb_serial *serial)
 static int cypress_hidcom_startup(struct usb_serial *serial)
 {
 	struct cypress_private *priv;
+	struct usb_serial_port *port = serial->port[0];
 
 	if (generic_startup(serial)) {
-		dbg("%s - Failed setting up port %d", __func__,
-				serial->port[0]->number);
+		dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);
 		return 1;
 	}
 
-	priv = usb_get_serial_port_data(serial->port[0]);
+	priv = usb_get_serial_port_data(port);
 	priv->chiptype = CT_CYPHIDCOM;
 
 	return 0;
@@ -540,14 +541,14 @@ static int cypress_hidcom_startup(struct usb_serial *serial)
 static int cypress_ca42v2_startup(struct usb_serial *serial)
 {
 	struct cypress_private *priv;
+	struct usb_serial_port *port = serial->port[0];
 
 	if (generic_startup(serial)) {
-		dbg("%s - Failed setting up port %d", __func__,
-				serial->port[0]->number);
+		dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);
 		return 1;
 	}
 
-	priv = usb_get_serial_port_data(serial->port[0]);
+	priv = usb_get_serial_port_data(port);
 	priv->chiptype = CT_CA42V2;
 
 	return 0;
@@ -649,7 +650,7 @@ static void cypress_close(struct usb_serial_port *port)
 	kfifo_reset_out(&priv->write_fifo);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - stopping urbs", __func__);
+	dev_dbg(&port->dev, "%s - stopping urbs\n", __func__);
 	usb_kill_urb(port->interrupt_in_urb);
 	usb_kill_urb(port->interrupt_out_urb);
 
@@ -665,7 +666,7 @@ static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port,
 {
 	struct cypress_private *priv = usb_get_serial_port_data(port);
 
-	dbg("%s - port %d, %d bytes", __func__, port->number, count);
+	dev_dbg(&port->dev, "%s - port %d, %d bytes\n", __func__, port->number, count);
 
 	/* line control commands, which need to be executed immediately,
 	   are not put into the buffer for obvious reasons.
@@ -691,17 +692,18 @@ static void cypress_send(struct usb_serial_port *port)
 {
 	int count = 0, result, offset, actual_size;
 	struct cypress_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	unsigned long flags;
 
 	if (!priv->comm_is_ok)
 		return;
 
-	dbg("%s - interrupt out size is %d", __func__,
-						port->interrupt_out_size);
+	dev_dbg(dev, "%s - interrupt out size is %d\n", __func__,
+		port->interrupt_out_size);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	if (priv->write_urb_in_use) {
-		dbg("%s - can't write, urb in use", __func__);
+		dev_dbg(dev, "%s - can't write, urb in use\n", __func__);
 		spin_unlock_irqrestore(&priv->lock, flags);
 		return;
 	}
@@ -731,7 +733,7 @@ static void cypress_send(struct usb_serial_port *port)
 
 	if (priv->cmd_ctrl) {
 		priv->cmd_count++;
-		dbg("%s - line control command being issued", __func__);
+		dev_dbg(dev, "%s - line control command being issued\n", __func__);
 		spin_unlock_irqrestore(&priv->lock, flags);
 		goto send;
 	} else
@@ -753,7 +755,7 @@ static void cypress_send(struct usb_serial_port *port)
 		port->interrupt_out_buffer[0] |= count;
 	}
 
-	dbg("%s - count is %d", __func__, count);
+	dev_dbg(dev, "%s - count is %d\n", __func__, count);
 
 send:
 	spin_lock_irqsave(&priv->lock, flags);
@@ -766,9 +768,8 @@ send:
 		actual_size = count +
 			      (priv->pkt_fmt == packet_format_1 ? 2 : 1);
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-		port->interrupt_out_size,
-		port->interrupt_out_urb->transfer_buffer);
+	usb_serial_debug_data(dev, __func__, port->interrupt_out_size,
+			      port->interrupt_out_urb->transfer_buffer);
 
 	usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
@@ -807,7 +808,7 @@ static int cypress_write_room(struct tty_struct *tty)
 	room = kfifo_avail(&priv->write_fifo);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
 	return room;
 }
 
@@ -832,7 +833,7 @@ static int cypress_tiocmget(struct tty_struct *tty)
 		| ((status & UART_RI)         ? TIOCM_RI  : 0)
 		| ((status & UART_CD)         ? TIOCM_CD  : 0);
 
-	dbg("%s - result = %x", __func__, result);
+	dev_dbg(&port->dev, "%s - result = %x\n", __func__, result);
 
 	return result;
 }
@@ -867,7 +868,7 @@ static int cypress_ioctl(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	struct cypress_private *priv = usb_get_serial_port_data(port);
 
-	dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - port %d, cmd 0x%.4x\n", __func__, port->number, cmd);
 
 	switch (cmd) {
 	/* This code comes from drivers/char/serial.c and ftdi_sio.c */
@@ -902,7 +903,7 @@ static int cypress_ioctl(struct tty_struct *tty,
 	default:
 		break;
 	}
-	dbg("%s - arg not supported - it was 0x%04x - check include/asm/ioctls.h", __func__, cmd);
+	dev_dbg(&port->dev, "%s - arg not supported - it was 0x%04x - check include/asm/ioctls.h\n", __func__, cmd);
 	return -ENOIOCTLCMD;
 } /* cypress_ioctl */
 
@@ -911,6 +912,7 @@ static void cypress_set_termios(struct tty_struct *tty,
 	struct usb_serial_port *port, struct ktermios *old_termios)
 {
 	struct cypress_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	int data_bits, stop_bits, parity_type, parity_enable;
 	unsigned cflag, iflag;
 	unsigned long flags;
@@ -922,38 +924,38 @@ static void cypress_set_termios(struct tty_struct *tty,
 	   early enough */
 	if (!priv->termios_initialized) {
 		if (priv->chiptype == CT_EARTHMATE) {
-			*(tty->termios) = tty_std_termios;
-			tty->termios->c_cflag = B4800 | CS8 | CREAD | HUPCL |
+			tty->termios = tty_std_termios;
+			tty->termios.c_cflag = B4800 | CS8 | CREAD | HUPCL |
 				CLOCAL;
-			tty->termios->c_ispeed = 4800;
-			tty->termios->c_ospeed = 4800;
+			tty->termios.c_ispeed = 4800;
+			tty->termios.c_ospeed = 4800;
 		} else if (priv->chiptype == CT_CYPHIDCOM) {
-			*(tty->termios) = tty_std_termios;
-			tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL |
+			tty->termios = tty_std_termios;
+			tty->termios.c_cflag = B9600 | CS8 | CREAD | HUPCL |
 				CLOCAL;
-			tty->termios->c_ispeed = 9600;
-			tty->termios->c_ospeed = 9600;
+			tty->termios.c_ispeed = 9600;
+			tty->termios.c_ospeed = 9600;
 		} else if (priv->chiptype == CT_CA42V2) {
-			*(tty->termios) = tty_std_termios;
-			tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL |
+			tty->termios = tty_std_termios;
+			tty->termios.c_cflag = B9600 | CS8 | CREAD | HUPCL |
 				CLOCAL;
-			tty->termios->c_ispeed = 9600;
-			tty->termios->c_ospeed = 9600;
+			tty->termios.c_ispeed = 9600;
+			tty->termios.c_ospeed = 9600;
 		}
 		priv->termios_initialized = 1;
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	/* Unsupported features need clearing */
-	tty->termios->c_cflag &= ~(CMSPAR|CRTSCTS);
+	tty->termios.c_cflag &= ~(CMSPAR|CRTSCTS);
 
-	cflag = tty->termios->c_cflag;
-	iflag = tty->termios->c_iflag;
+	cflag = tty->termios.c_cflag;
+	iflag = tty->termios.c_iflag;
 
 	/* check if there are new settings */
 	if (old_termios) {
 		spin_lock_irqsave(&priv->lock, flags);
-		priv->tmp_termios = *(tty->termios);
+		priv->tmp_termios = tty->termios;
 		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
@@ -984,23 +986,21 @@ static void cypress_set_termios(struct tty_struct *tty,
 		data_bits = 3;
 		break;
 	default:
-		dev_err(&port->dev, "%s - CSIZE was set, but not CS5-CS8\n",
-			__func__);
+		dev_err(dev, "%s - CSIZE was set, but not CS5-CS8\n", __func__);
 		data_bits = 3;
 	}
 	spin_lock_irqsave(&priv->lock, flags);
 	oldlines = priv->line_control;
 	if ((cflag & CBAUD) == B0) {
 		/* drop dtr and rts */
-		dbg("%s - dropping the lines, baud rate 0bps", __func__);
+		dev_dbg(dev, "%s - dropping the lines, baud rate 0bps\n", __func__);
 		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
 	} else
 		priv->line_control = (CONTROL_DTR | CONTROL_RTS);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - sending %d stop_bits, %d parity_enable, %d parity_type, "
-			"%d data_bits (+5)", __func__, stop_bits,
-			parity_enable, parity_type, data_bits);
+	dev_dbg(dev, "%s - sending %d stop_bits, %d parity_enable, %d parity_type, %d data_bits (+5)\n",
+		__func__, stop_bits, parity_enable, parity_type, data_bits);
 
 	cypress_serial_control(tty, port, tty_get_baud_rate(tty),
 			data_bits, stop_bits,
@@ -1017,11 +1017,10 @@ static void cypress_set_termios(struct tty_struct *tty,
 
 	spin_lock_irqsave(&priv->lock, flags);
 	if (priv->chiptype == CT_EARTHMATE && priv->baud_rate == 4800) {
-		dbg("Using custom termios settings for a baud rate of "
-				"4800bps.");
+		dev_dbg(dev, "Using custom termios settings for a baud rate of 4800bps.\n");
 		/* define custom termios settings for NMEA protocol */
 
-		tty->termios->c_iflag /* input modes - */
+		tty->termios.c_iflag /* input modes - */
 			&= ~(IGNBRK  /* disable ignore break */
 			| BRKINT     /* disable break causes interrupt */
 			| PARMRK     /* disable mark parity errors */
@@ -1031,10 +1030,10 @@ static void cypress_set_termios(struct tty_struct *tty,
 			| ICRNL      /* disable translate CR to NL */
 			| IXON);     /* disable enable XON/XOFF flow control */
 
-		tty->termios->c_oflag /* output modes */
+		tty->termios.c_oflag /* output modes */
 			&= ~OPOST;    /* disable postprocess output char */
 
-		tty->termios->c_lflag /* line discipline modes */
+		tty->termios.c_lflag /* line discipline modes */
 			&= ~(ECHO     /* disable echo input characters */
 			| ECHONL      /* disable echo new line */
 			| ICANON      /* disable erase, kill, werase, and rprnt
@@ -1067,7 +1066,7 @@ static int cypress_chars_in_buffer(struct tty_struct *tty)
 	chars = kfifo_len(&priv->write_fifo);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - returns %d", __func__, chars);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 }
 
@@ -1112,6 +1111,7 @@ static void cypress_read_int_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	struct cypress_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &urb->dev->dev;
 	struct tty_struct *tty;
 	unsigned char *data = urb->transfer_buffer;
 	unsigned long flags;
@@ -1135,16 +1135,15 @@ static void cypress_read_int_callback(struct urb *urb)
 		/* FALLS THROUGH */
 	default:
 		/* something ugly is going on... */
-		dev_err(&urb->dev->dev,
-			"%s - unexpected nonzero read status received: %d\n",
-							__func__, status);
+		dev_err(dev, "%s - unexpected nonzero read status received: %d\n",
+			__func__, status);
 		cypress_set_dead(port);
 		return;
 	}
 
 	spin_lock_irqsave(&priv->lock, flags);
 	if (priv->rx_flags & THROTTLED) {
-		dbg("%s - now throttling", __func__);
+		dev_dbg(dev, "%s - now throttling\n", __func__);
 		priv->rx_flags |= ACTUALLY_THROTTLED;
 		spin_unlock_irqrestore(&priv->lock, flags);
 		return;
@@ -1153,7 +1152,7 @@ static void cypress_read_int_callback(struct urb *urb)
 
 	tty = tty_port_tty_get(&port->port);
 	if (!tty) {
-		dbg("%s - bad tty pointer - exiting", __func__);
+		dev_dbg(dev, "%s - bad tty pointer - exiting\n", __func__);
 		return;
 	}
 
@@ -1180,13 +1179,13 @@ static void cypress_read_int_callback(struct urb *urb)
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
 	if (result < bytes) {
-		dbg("%s - wrong packet size - received %d bytes but packet "
-		    "said %d bytes", __func__, result, bytes);
+		dev_dbg(dev,
+			"%s - wrong packet size - received %d bytes but packet said %d bytes\n",
+			__func__, result, bytes);
 		goto continue_read;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	/* check to see if status has changed */
@@ -1200,9 +1199,9 @@ static void cypress_read_int_callback(struct urb *urb)
 
 	/* hangup, as defined in acm.c... this might be a bad place for it
 	 * though */
-	if (tty && !(tty->termios->c_cflag & CLOCAL) &&
+	if (tty && !(tty->termios.c_cflag & CLOCAL) &&
 			!(priv->current_status & UART_CD)) {
-		dbg("%s - calling hangup", __func__);
+		dev_dbg(dev, "%s - calling hangup\n", __func__);
 		tty_hangup(tty);
 		goto continue_read;
 	}
@@ -1215,7 +1214,7 @@ static void cypress_read_int_callback(struct urb *urb)
 	if (priv->current_status & CYP_ERROR) {
 		spin_unlock_irqrestore(&priv->lock, flags);
 		tty_flag = TTY_PARITY;
-		dbg("%s - Parity Error detected", __func__);
+		dev_dbg(dev, "%s - Parity Error detected\n", __func__);
 	} else
 		spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -1246,9 +1245,8 @@ continue_read:
 				priv->read_urb_interval);
 		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 		if (result && result != -EPERM) {
-			dev_err(&urb->dev->dev, "%s - failed resubmitting "
-					"read urb, error %d\n", __func__,
-					result);
+			dev_err(dev, "%s - failed resubmitting read urb, error %d\n",
+				__func__, result);
 			cypress_set_dead(port);
 		}
 	}
@@ -1259,6 +1257,7 @@ static void cypress_write_int_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	struct cypress_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &urb->dev->dev;
 	int result;
 	int status = urb->status;
 
@@ -1270,8 +1269,8 @@ static void cypress_write_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
-						__func__, status);
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
+			__func__, status);
 		priv->write_urb_in_use = 0;
 		return;
 	case -EPIPE: /* no break needed; clear halt and resubmit */
@@ -1279,21 +1278,19 @@ static void cypress_write_int_callback(struct urb *urb)
 			break;
 		usb_clear_halt(port->serial->dev, 0x02);
 		/* error in the urb, so we have to resubmit it */
-		dbg("%s - nonzero write bulk status received: %d",
+		dev_dbg(dev, "%s - nonzero write bulk status received: %d\n",
 			__func__, status);
 		port->interrupt_out_urb->transfer_buffer_length = 1;
 		result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
 		if (!result)
 			return;
-		dev_err(&urb->dev->dev,
-			"%s - failed resubmitting write urb, error %d\n",
-							__func__, result);
+		dev_err(dev, "%s - failed resubmitting write urb, error %d\n",
+			__func__, result);
 		cypress_set_dead(port);
 		break;
 	default:
-		dev_err(&urb->dev->dev,
-			 "%s - unexpected nonzero write status received: %d\n",
-							__func__, status);
+		dev_err(dev, "%s - unexpected nonzero write status received: %d\n",
+			__func__, status);
 		cypress_set_dead(port);
 		break;
 	}
@@ -1310,8 +1307,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
 module_param(stats, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(stats, "Enable statistics or not");
 module_param(interval, int, S_IRUGO | S_IWUSR);
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index b5cd838093e..c86f68c6b07 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -249,10 +249,6 @@ static int digi_read_inb_callback(struct urb *urb);
 static int digi_read_oob_callback(struct urb *urb);
 
 
-/* Statics */
-
-static bool debug;
-
 static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(DIGI_VENDOR_ID, DIGI_2_ID) },
 	{ USB_DEVICE(DIGI_VENDOR_ID, DIGI_4_ID) },
@@ -404,14 +400,15 @@ static void digi_wakeup_write(struct usb_serial_port *port)
 static int digi_write_oob_command(struct usb_serial_port *port,
 	unsigned char *buf, int count, int interruptible)
 {
-
 	int ret = 0;
 	int len;
 	struct usb_serial_port *oob_port = (struct usb_serial_port *)((struct digi_serial *)(usb_get_serial_data(port->serial)))->ds_oob_port;
 	struct digi_port *oob_priv = usb_get_serial_port_data(oob_port);
 	unsigned long flags = 0;
 
-	dbg("digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count);
+	dev_dbg(&port->dev,
+		"digi_write_oob_command: TOP: port=%d, count=%d\n",
+		oob_priv->dp_port_num, count);
 
 	spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
 	while (count > 0) {
@@ -467,7 +464,7 @@ static int digi_write_inb_command(struct usb_serial_port *port,
 	unsigned char *data = port->write_urb->transfer_buffer;
 	unsigned long flags = 0;
 
-	dbg("digi_write_inb_command: TOP: port=%d, count=%d",
+	dev_dbg(&port->dev, "digi_write_inb_command: TOP: port=%d, count=%d\n",
 		priv->dp_port_num, count);
 
 	if (timeout)
@@ -549,7 +546,8 @@ static int digi_set_modem_signals(struct usb_serial_port *port,
 	unsigned long flags = 0;
 
 
-	dbg("digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x",
+	dev_dbg(&port->dev,
+		"digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x\n",
 		port_priv->dp_port_num, modem_signals);
 
 	spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
@@ -687,8 +685,9 @@ static void digi_set_termios(struct tty_struct *tty,
 		struct usb_serial_port *port, struct ktermios *old_termios)
 {
 	struct digi_port *priv = usb_get_serial_port_data(port);
-	unsigned int iflag = tty->termios->c_iflag;
-	unsigned int cflag = tty->termios->c_cflag;
+	struct device *dev = &port->dev;
+	unsigned int iflag = tty->termios.c_iflag;
+	unsigned int cflag = tty->termios.c_cflag;
 	unsigned int old_iflag = old_termios->c_iflag;
 	unsigned int old_cflag = old_termios->c_cflag;
 	unsigned char buf[32];
@@ -697,7 +696,9 @@ static void digi_set_termios(struct tty_struct *tty,
 	int i = 0;
 	speed_t baud;
 
-	dbg("digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag);
+	dev_dbg(dev,
+		"digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x\n",
+		priv->dp_port_num, iflag, old_iflag, cflag, old_cflag);
 
 	/* set baud rate */
 	baud = tty_get_baud_rate(tty);
@@ -709,7 +710,7 @@ static void digi_set_termios(struct tty_struct *tty,
 			/* don't set RTS if using hardware flow control */
 			/* and throttling input */
 			modem_signals = TIOCM_DTR;
-			if (!(tty->termios->c_cflag & CRTSCTS) ||
+			if (!(tty->termios.c_cflag & CRTSCTS) ||
 			    !test_bit(TTY_THROTTLED, &tty->flags))
 				modem_signals |= TIOCM_RTS;
 			digi_set_modem_signals(port, modem_signals, 1);
@@ -748,7 +749,7 @@ static void digi_set_termios(struct tty_struct *tty,
 		}
 	}
 	/* set parity */
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 
 	if ((cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD))) {
 		if (cflag&PARENB) {
@@ -773,7 +774,8 @@ static void digi_set_termios(struct tty_struct *tty,
 		case CS7: arg = DIGI_WORD_SIZE_7; break;
 		case CS8: arg = DIGI_WORD_SIZE_8; break;
 		default:
-			dbg("digi_set_termios: can't handle word size %d",
+			dev_dbg(dev,
+				"digi_set_termios: can't handle word size %d\n",
 				(cflag&CSIZE));
 			break;
 		}
@@ -866,7 +868,7 @@ static void digi_set_termios(struct tty_struct *tty,
 	}
 	ret = digi_write_oob_command(port, buf, i, 1);
 	if (ret != 0)
-		dbg("digi_set_termios: write oob failed, ret=%d", ret);
+		dev_dbg(dev, "digi_set_termios: write oob failed, ret=%d\n", ret);
 	tty_encode_baud_rate(tty, baud, baud);
 }
 
@@ -922,7 +924,8 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port,
 	unsigned char *data = port->write_urb->transfer_buffer;
 	unsigned long flags = 0;
 
-	dbg("digi_write: TOP: port=%d, count=%d, in_interrupt=%ld",
+	dev_dbg(&port->dev,
+		"digi_write: TOP: port=%d, count=%d, in_interrupt=%ld\n",
 		priv->dp_port_num, count, in_interrupt());
 
 	/* copy user data (which can sleep) before getting spin lock */
@@ -981,7 +984,7 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port,
 		dev_err_console(port,
 			"%s: usb_submit_urb failed, ret=%d, port=%d\n",
 			__func__, ret, priv->dp_port_num);
-	dbg("digi_write: returning %d", ret);
+	dev_dbg(&port->dev, "digi_write: returning %d\n", ret);
 	return ret;
 
 }
@@ -1012,7 +1015,7 @@ static void digi_write_bulk_callback(struct urb *urb)
 
 	/* handle oob callback */
 	if (priv->dp_port_num == serial_priv->ds_oob_port_num) {
-		dbg("digi_write_bulk_callback: oob callback");
+		dev_dbg(&port->dev, "digi_write_bulk_callback: oob callback\n");
 		spin_lock(&priv->dp_port_lock);
 		priv->dp_write_urb_in_use = 0;
 		wake_up_interruptible(&port->write_wait);
@@ -1066,7 +1069,7 @@ static int digi_write_room(struct tty_struct *tty)
 		room = port->bulk_out_size - 2 - priv->dp_out_buf_len;
 
 	spin_unlock_irqrestore(&priv->dp_port_lock, flags);
-	dbg("digi_write_room: port=%d, room=%d", priv->dp_port_num, room);
+	dev_dbg(&port->dev, "digi_write_room: port=%d, room=%d\n", priv->dp_port_num, room);
 	return room;
 
 }
@@ -1077,12 +1080,12 @@ static int digi_chars_in_buffer(struct tty_struct *tty)
 	struct digi_port *priv = usb_get_serial_port_data(port);
 
 	if (priv->dp_write_urb_in_use) {
-		dbg("digi_chars_in_buffer: port=%d, chars=%d",
+		dev_dbg(&port->dev, "digi_chars_in_buffer: port=%d, chars=%d\n",
 			priv->dp_port_num, port->bulk_out_size - 2);
 		/* return(port->bulk_out_size - 2); */
 		return 256;
 	} else {
-		dbg("digi_chars_in_buffer: port=%d, chars=%d",
+		dev_dbg(&port->dev, "digi_chars_in_buffer: port=%d, chars=%d\n",
 			priv->dp_port_num, priv->dp_out_buf_len);
 		return priv->dp_out_buf_len;
 	}
@@ -1120,12 +1123,12 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	ret = digi_write_oob_command(port, buf, 8, 1);
 	if (ret != 0)
-		dbg("digi_open: write oob failed, ret=%d", ret);
+		dev_dbg(&port->dev, "digi_open: write oob failed, ret=%d\n", ret);
 
 	/* set termios settings */
 	if (tty) {
-		not_termios.c_cflag = ~tty->termios->c_cflag;
-		not_termios.c_iflag = ~tty->termios->c_iflag;
+		not_termios.c_cflag = ~tty->termios.c_cflag;
+		not_termios.c_iflag = ~tty->termios.c_iflag;
 		digi_set_termios(tty, port, &not_termios);
 	}
 	return 0;
@@ -1180,7 +1183,7 @@ static void digi_close(struct usb_serial_port *port)
 
 		ret = digi_write_oob_command(port, buf, 20, 0);
 		if (ret != 0)
-			dbg("digi_close: write oob failed, ret=%d", ret);
+			dev_dbg(&port->dev, "digi_close: write oob failed, ret=%d\n", ret);
 
 		/* wait for final commands on oob port to complete */
 		prepare_to_wait(&priv->dp_flush_wait, &wait,
@@ -1448,9 +1451,9 @@ static int digi_read_inb_callback(struct urb *urb)
 	tty_kref_put(tty);
 
 	if (opcode == DIGI_CMD_RECEIVE_DISABLE)
-		dbg("%s: got RECEIVE_DISABLE", __func__);
+		dev_dbg(&port->dev, "%s: got RECEIVE_DISABLE\n", __func__);
 	else if (opcode != DIGI_CMD_RECEIVE_DATA)
-		dbg("%s: unknown opcode: %d", __func__, opcode);
+		dev_dbg(&port->dev, "%s: unknown opcode: %d\n", __func__, opcode);
 
 	return throttled ? 1 : 0;
 
@@ -1484,7 +1487,7 @@ static int digi_read_oob_callback(struct urb *urb)
 		status = ((unsigned char *)urb->transfer_buffer)[i++];
 		val = ((unsigned char *)urb->transfer_buffer)[i++];
 
-		dbg("digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d",
+		dev_dbg(&port->dev, "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d\n",
 			opcode, line, status, val);
 
 		if (status != 0 || line >= serial->type->num_ports)
@@ -1500,7 +1503,7 @@ static int digi_read_oob_callback(struct urb *urb)
 
 		rts = 0;
 		if (tty)
-			rts = tty->termios->c_cflag & CRTSCTS;
+			rts = tty->termios.c_cflag & CRTSCTS;
 		
 		if (tty && opcode == DIGI_CMD_READ_INPUT_SIGNALS) {
 			spin_lock(&priv->dp_port_lock);
@@ -1552,6 +1555,3 @@ module_usb_serial_driver(serial_drivers, id_table_combined);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index cdf61dd0731..43ede4a1e12 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -28,8 +28,6 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
-static bool debug;
-
 /*
  * Version Information
  */
@@ -87,7 +85,7 @@ static int empeg_startup(struct usb_serial *serial)
 
 static void empeg_init_termios(struct tty_struct *tty)
 {
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 
 	/*
 	 * The empeg-car player wants these particular tty settings.
@@ -134,6 +132,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c
deleted file mode 100644
index 800e8eb6000..00000000000
--- a/drivers/usb/serial/ezusb.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * EZ-USB specific functions used by some of the USB to Serial drivers.
- *
- * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/tty.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/usb/serial.h>
-
-/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
-#define CPUCS_REG    0x7F92
-
-int ezusb_writememory(struct usb_serial *serial, int address,
-				unsigned char *data, int length, __u8 request)
-{
-	int result;
-	unsigned char *transfer_buffer;
-
-	if (!serial->dev) {
-		printk(KERN_ERR "ezusb: %s - no physical device present, "
-		       "failing.\n", __func__);
-		return -ENODEV;
-	}
-
-	transfer_buffer = kmemdup(data, length, GFP_KERNEL);
-	if (!transfer_buffer) {
-		dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
-							__func__, length);
-		return -ENOMEM;
-	}
-	result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
-		     request, 0x40, address, 0, transfer_buffer, length, 3000);
-	kfree(transfer_buffer);
-	return result;
-}
-EXPORT_SYMBOL_GPL(ezusb_writememory);
-
-int ezusb_set_reset(struct usb_serial *serial, unsigned char reset_bit)
-{
-	int response;
-
-	response = ezusb_writememory(serial, CPUCS_REG, &reset_bit, 1, 0xa0);
-	if (response < 0)
-		dev_err(&serial->dev->dev, "%s- %d failed\n",
-						__func__, reset_bit);
-	return response;
-}
-EXPORT_SYMBOL_GPL(ezusb_set_reset);
-
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 499b15fd82f..244477107e2 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -25,8 +25,6 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x1934, 0x0706) },
 	{ }					/* Terminating entry */
@@ -85,7 +83,7 @@ static void f81232_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
+	usb_serial_debug_data(&port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	f81232_update_line_status(port, data, actual_length);
@@ -173,10 +171,11 @@ static void f81232_set_termios(struct tty_struct *tty,
 	/* FIXME - Stubbed out for now */
 
 	/* Don't change anything if nothing has changed */
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (!tty_termios_hw_change(&tty->termios, old_termios))
 		return;
 
 	/* Do the real work here... */
+	tty_termios_copy_hw(&tty->termios, old_termios);
 }
 
 static int f81232_tiocmget(struct tty_struct *tty)
@@ -388,7 +387,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_DESCRIPTION("Fintek F81232 USB to serial adaptor driver");
 MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@linuxfoundation.org");
 MODULE_LICENSE("GPL v2");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index bc912e5a3be..be845873e23 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -48,14 +48,9 @@
 #include "ftdi_sio.h"
 #include "ftdi_sio_ids.h"
 
-/*
- * Version Information
- */
-#define DRIVER_VERSION "v1.6.0"
 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr, Johan Hovold <jhovold@gmail.com>"
 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
 
-static bool debug;
 static __u16 vendor = FTDI_VID;
 static __u16 product;
 
@@ -584,6 +579,8 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_TAVIR_STK500_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_TIAO_UMPA_PID),
+		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	/*
 	 * ELV devices:
 	 */
@@ -704,6 +701,7 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) },
 	{ USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) },
 	{ USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) },
 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) },
@@ -804,13 +802,33 @@ static struct usb_device_id id_table_combined [] = {
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
+					USB_CLASS_VENDOR_SPEC,
+					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
 	{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
+	{ USB_DEVICE(FTDI_VID, PI_C865_PID) },
+	{ USB_DEVICE(FTDI_VID, PI_C857_PID) },
+	{ USB_DEVICE(PI_VID, PI_C866_PID) },
+	{ USB_DEVICE(PI_VID, PI_C663_PID) },
+	{ USB_DEVICE(PI_VID, PI_C725_PID) },
+	{ USB_DEVICE(PI_VID, PI_E517_PID) },
+	{ USB_DEVICE(PI_VID, PI_C863_PID) },
 	{ USB_DEVICE(PI_VID, PI_E861_PID) },
+	{ USB_DEVICE(PI_VID, PI_C867_PID) },
+	{ USB_DEVICE(PI_VID, PI_E609_PID) },
+	{ USB_DEVICE(PI_VID, PI_E709_PID) },
+	{ USB_DEVICE(PI_VID, PI_100F_PID) },
+	{ USB_DEVICE(PI_VID, PI_1011_PID) },
+	{ USB_DEVICE(PI_VID, PI_1012_PID) },
+	{ USB_DEVICE(PI_VID, PI_1013_PID) },
+	{ USB_DEVICE(PI_VID, PI_1014_PID) },
+	{ USB_DEVICE(PI_VID, PI_1015_PID) },
+	{ USB_DEVICE(PI_VID, PI_1016_PID) },
+	{ USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) },
 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
@@ -1042,11 +1060,12 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set,
 							unsigned int clear)
 {
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	unsigned urb_value;
 	int rv;
 
 	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
-		dbg("%s - DTR|RTS not being set|cleared", __func__);
+		dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__);
 		return 0;	/* no change */
 	}
 
@@ -1067,18 +1086,14 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set,
 			       urb_value, priv->interface,
 			       NULL, 0, WDR_TIMEOUT);
 	if (rv < 0) {
-		dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s",
-				__func__,
-				(set & TIOCM_DTR) ? "HIGH" :
-				(clear & TIOCM_DTR) ? "LOW" : "unchanged",
-				(set & TIOCM_RTS) ? "HIGH" :
-				(clear & TIOCM_RTS) ? "LOW" : "unchanged");
+		dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n",
+			__func__,
+			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
+			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
 	} else {
-		dbg("%s - DTR %s, RTS %s", __func__,
-				(set & TIOCM_DTR) ? "HIGH" :
-				(clear & TIOCM_DTR) ? "LOW" : "unchanged",
-				(set & TIOCM_RTS) ? "HIGH" :
-				(clear & TIOCM_RTS) ? "LOW" : "unchanged");
+		dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__,
+			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
+			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
 		/* FIXME: locking on last_dtr_rts */
 		priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
 	}
@@ -1090,6 +1105,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 						struct usb_serial_port *port)
 {
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	__u32 div_value = 0;
 	int div_okay = 1;
 	int baud;
@@ -1125,7 +1141,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 	      alt_speed hack */
 
 	baud = tty_get_baud_rate(tty);
-	dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud);
+	dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud);
 
 	/* 2. Observe async-compatible custom_divisor hack, update baudrate
 	   if needed */
@@ -1134,8 +1150,8 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 	    ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
 	     (priv->custom_divisor)) {
 		baud = priv->baud_base / priv->custom_divisor;
-		dbg("%s - custom divisor %d sets baud rate to %d",
-				__func__, priv->custom_divisor, baud);
+		dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n",
+			__func__, priv->custom_divisor, baud);
 	}
 
 	/* 3. Convert baudrate to device-specific divisor */
@@ -1157,8 +1173,8 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 		case 115200: div_value = ftdi_sio_b115200; break;
 		} /* baud */
 		if (div_value == 0) {
-			dbg("%s - Baudrate (%d) requested is not supported",
-							__func__,  baud);
+			dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n",
+				__func__,  baud);
 			div_value = ftdi_sio_b9600;
 			baud = 9600;
 			div_okay = 0;
@@ -1168,7 +1184,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 		if (baud <= 3000000) {
 			div_value = ftdi_232am_baud_to_divisor(baud);
 		} else {
-			dbg("%s - Baud rate too high!", __func__);
+			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
 			baud = 9600;
 			div_value = ftdi_232am_baud_to_divisor(9600);
 			div_okay = 0;
@@ -1191,7 +1207,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 			}
 			div_value = ftdi_232bm_baud_to_divisor(baud);
 		} else {
-			dbg("%s - Baud rate too high!", __func__);
+			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
 			div_value = ftdi_232bm_baud_to_divisor(9600);
 			div_okay = 0;
 			baud = 9600;
@@ -1205,7 +1221,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 		} else if (baud < 1200) {
 			div_value = ftdi_232bm_baud_to_divisor(baud);
 		} else {
-			dbg("%s - Baud rate too high!", __func__);
+			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
 			div_value = ftdi_232bm_baud_to_divisor(9600);
 			div_okay = 0;
 			baud = 9600;
@@ -1214,7 +1230,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
 	} /* priv->chip_type */
 
 	if (div_okay) {
-		dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s",
+		dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n",
 			__func__, baud, (unsigned long)div_value,
 			ftdi_chip_name[priv->chip_type]);
 	}
@@ -1260,7 +1276,7 @@ static int write_latency_timer(struct usb_serial_port *port)
 	if (priv->flags & ASYNC_LOW_LATENCY)
 		l = 1;
 
-	dbg("%s: setting latency timer = %i", __func__, l);
+	dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l);
 
 	rv = usb_control_msg(udev,
 			     usb_sndctrlpipe(udev, 0),
@@ -1415,8 +1431,8 @@ static void ftdi_determine_type(struct usb_serial_port *port)
 
 	version = le16_to_cpu(udev->descriptor.bcdDevice);
 	interfaces = udev->actconfig->desc.bNumInterfaces;
-	dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__,
-			version, interfaces);
+	dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__,
+		version, interfaces);
 	if (interfaces > 1) {
 		int inter;
 
@@ -1446,8 +1462,9 @@ static void ftdi_determine_type(struct usb_serial_port *port)
 		/* BM-type devices have a bug where bcdDevice gets set
 		 * to 0x200 when iSerialNumber is 0.  */
 		if (version < 0x500) {
-			dbg("%s: something fishy - bcdDevice too low for multi-interface device",
-					__func__);
+			dev_dbg(&port->dev,
+				"%s: something fishy - bcdDevice too low for multi-interface device\n",
+				__func__);
 		}
 	} else if (version < 0x200) {
 		/* Old device.  Assume it's the original SIO. */
@@ -1561,7 +1578,7 @@ static ssize_t store_event_char(struct device *dev,
 	int v = simple_strtoul(valbuf, NULL, 10);
 	int rv;
 
-	dbg("%s: setting event char = %i", __func__, v);
+	dev_dbg(&port->dev, "%s: setting event char = %i\n", __func__, v);
 
 	rv = usb_control_msg(udev,
 			     usb_sndctrlpipe(udev, 0),
@@ -1570,7 +1587,7 @@ static ssize_t store_event_char(struct device *dev,
 			     v, priv->interface,
 			     NULL, 0, WDR_TIMEOUT);
 	if (rv < 0) {
-		dbg("Unable to write event character: %i", rv);
+		dev_dbg(&port->dev, "Unable to write event character: %i\n", rv);
 		return -EIO;
 	}
 
@@ -1589,7 +1606,7 @@ static int create_sysfs_attrs(struct usb_serial_port *port)
 	/* XXX I've no idea if the original SIO supports the event_char
 	 * sysfs parameter, so I'm playing it safe.  */
 	if (priv->chip_type != SIO) {
-		dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]);
+		dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]);
 		retval = device_create_file(&port->dev, &dev_attr_event_char);
 		if ((!retval) &&
 		    (priv->chip_type == FT232BM ||
@@ -1729,8 +1746,8 @@ static int ftdi_NDI_device_setup(struct usb_serial *serial)
 	if (latency > 99)
 		latency = 99;
 
-	dbg("%s setting NDI device latency to %d", __func__, latency);
-	dev_info(&udev->dev, "NDI device with a latency value of %d", latency);
+	dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency);
+	dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency);
 
 	/* FIXME: errors are not returned */
 	usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
@@ -1948,7 +1965,7 @@ static int ftdi_process_packet(struct tty_struct *tty,
 	char *ch;
 
 	if (len < 2) {
-		dbg("malformed packet");
+		dev_dbg(&port->dev, "malformed packet\n");
 		return 0;
 	}
 
@@ -2063,12 +2080,12 @@ static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
 			FTDI_SIO_SET_DATA_REQUEST_TYPE,
 			urb_value , priv->interface,
 			NULL, 0, WDR_TIMEOUT) < 0) {
-		dev_err(&port->dev, "%s FAILED to enable/disable break state "
-			"(state was %d)\n", __func__, break_state);
+		dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n",
+			__func__, break_state);
 	}
 
-	dbg("%s break state is %d - urb is %d", __func__,
-						break_state, urb_value);
+	dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__,
+		break_state, urb_value);
 
 }
 
@@ -2080,8 +2097,9 @@ static void ftdi_set_termios(struct tty_struct *tty,
 		struct usb_serial_port *port, struct ktermios *old_termios)
 {
 	struct usb_device *dev = port->serial->dev;
+	struct device *ddev = &port->dev;
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	unsigned int cflag = termios->c_cflag;
 	__u16 urb_value; /* will hold the new flags */
 
@@ -2093,20 +2111,20 @@ static void ftdi_set_termios(struct tty_struct *tty,
 	/* Force baud rate if this device requires it, unless it is set to
 	   B0. */
 	if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
-		dbg("%s: forcing baud rate for this device", __func__);
+		dev_dbg(ddev, "%s: forcing baud rate for this device\n", __func__);
 		tty_encode_baud_rate(tty, priv->force_baud,
 					priv->force_baud);
 	}
 
 	/* Force RTS-CTS if this device requires it. */
 	if (priv->force_rtscts) {
-		dbg("%s: forcing rtscts for this device", __func__);
+		dev_dbg(ddev, "%s: forcing rtscts for this device\n", __func__);
 		termios->c_cflag |= CRTSCTS;
 	}
 
 	cflag = termios->c_cflag;
 
-	if (old_termios == 0)
+	if (!old_termios)
 		goto no_skip;
 
 	if (old_termios->c_cflag == termios->c_cflag
@@ -2142,10 +2160,16 @@ no_skip:
 	}
 	if (cflag & CSIZE) {
 		switch (cflag & CSIZE) {
-		case CS7: urb_value |= 7; dbg("Setting CS7"); break;
-		case CS8: urb_value |= 8; dbg("Setting CS8"); break;
+		case CS7:
+			urb_value |= 7;
+			dev_dbg(ddev, "Setting CS7\n");
+			break;
+		case CS8:
+			urb_value |= 8;
+			dev_dbg(ddev, "Setting CS8\n");
+			break;
 		default:
-			dev_err(&port->dev, "CSIZE was set but not CS7-CS8\n");
+			dev_err(ddev, "CSIZE was set but not CS7-CS8\n");
 		}
 	}
 
@@ -2158,8 +2182,8 @@ no_skip:
 			    FTDI_SIO_SET_DATA_REQUEST_TYPE,
 			    urb_value , priv->interface,
 			    NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
-		dev_err(&port->dev, "%s FAILED to set "
-			"databits/stopbits/parity\n", __func__);
+		dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n",
+			__func__);
 	}
 
 	/* Now do the baudrate */
@@ -2171,8 +2195,7 @@ no_data_parity_stop_changes:
 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
 				    0, priv->interface,
 				    NULL, 0, WDR_TIMEOUT) < 0) {
-			dev_err(&port->dev,
-				"%s error from disable flowcontrol urb\n",
+			dev_err(ddev, "%s error from disable flowcontrol urb\n",
 				__func__);
 		}
 		/* Drop RTS and DTR */
@@ -2181,8 +2204,7 @@ no_data_parity_stop_changes:
 		/* set the baudrate determined before */
 		mutex_lock(&priv->cfg_lock);
 		if (change_speed(tty, port))
-			dev_err(&port->dev, "%s urb failed to set baudrate\n",
-				__func__);
+			dev_err(ddev, "%s urb failed to set baudrate\n", __func__);
 		mutex_unlock(&priv->cfg_lock);
 		/* Ensure RTS and DTR are raised when baudrate changed from 0 */
 		if (!old_termios || (old_termios->c_cflag & CBAUD) == B0)
@@ -2193,17 +2215,15 @@ no_data_parity_stop_changes:
 	/* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
 no_c_cflag_changes:
 	if (cflag & CRTSCTS) {
-		dbg("%s Setting to CRTSCTS flow control", __func__);
+		dev_dbg(ddev, "%s Setting to CRTSCTS flow control\n", __func__);
 		if (usb_control_msg(dev,
 				    usb_sndctrlpipe(dev, 0),
 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
 				    0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
 				    NULL, 0, WDR_TIMEOUT) < 0) {
-			dev_err(&port->dev,
-				"urb failed to set to rts/cts flow control\n");
+			dev_err(ddev, "urb failed to set to rts/cts flow control\n");
 		}
-
 	} else {
 		/*
 		 * Xon/Xoff code
@@ -2213,8 +2233,8 @@ no_c_cflag_changes:
 		 * code is executed.
 		 */
 		if (iflag & IXOFF) {
-			dbg("%s  request to enable xonxoff iflag=%04x",
-							__func__, iflag);
+			dev_dbg(ddev, "%s  request to enable xonxoff iflag=%04x\n",
+				__func__, iflag);
 			/* Try to enable the XON/XOFF on the ftdi_sio
 			 * Set the vstart and vstop -- could have been done up
 			 * above where a lot of other dereferencing is done but
@@ -2239,18 +2259,16 @@ no_c_cflag_changes:
 			/* else clause to only run if cflag ! CRTSCTS and iflag
 			 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
 			 * stack - not by device */
-			dbg("%s Turning off hardware flow control", __func__);
+			dev_dbg(ddev, "%s Turning off hardware flow control\n", __func__);
 			if (usb_control_msg(dev,
 					    usb_sndctrlpipe(dev, 0),
 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
 					    0, priv->interface,
 					    NULL, 0, WDR_TIMEOUT) < 0) {
-				dev_err(&port->dev,
-					"urb failed to clear flow control\n");
+				dev_err(ddev, "urb failed to clear flow control\n");
 			}
 		}
-
 	}
 }
 
@@ -2344,7 +2362,7 @@ static int ftdi_ioctl(struct tty_struct *tty,
 	struct async_icount cnow;
 	struct async_icount cprev;
 
-	dbg("%s cmd 0x%04x", __func__, cmd);
+	dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
 
 	/* Based on code from acm.c and others */
 	switch (cmd) {
@@ -2392,14 +2410,13 @@ static int ftdi_ioctl(struct tty_struct *tty,
 	/* This is not necessarily an error - turns out the higher layers
 	 * will do some ioctls themselves (see comment above)
 	 */
-	dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd);
+	dev_dbg(&port->dev, "%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h\n",
+		__func__, cmd);
 	return -ENOIOCTLCMD;
 }
 
 static int __init ftdi_init(void)
 {
-	int retval;
-
 	if (vendor > 0 && product > 0) {
 		/* Add user specified VID/PID to reserved element of table. */
 		int i;
@@ -2409,11 +2426,7 @@ static int __init ftdi_init(void)
 		id_table_combined[i].idVendor = vendor;
 		id_table_combined[i].idProduct = product;
 	}
-	retval = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, id_table_combined);
-	if (retval == 0)
-		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
-			       DRIVER_DESC "\n");
-	return retval;
+	return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, id_table_combined);
 }
 
 static void __exit ftdi_exit(void)
@@ -2429,8 +2442,6 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
 module_param(vendor, ushort, 0);
 MODULE_PARM_DESC(vendor, "User specified vendor ID (default="
 		__MODULE_STRING(FTDI_VID)")");
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 5661c7e2d41..57c12ef6625 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -75,6 +75,9 @@
 #define FTDI_OPENDCC_GATEWAY_PID	0xBFDB
 #define FTDI_OPENDCC_GBM_PID	0xBFDC
 
+/* NZR SEM 16+ USB (http://www.nzr.de) */
+#define FTDI_NZR_SEM_USB_PID	0xC1E0	/* NZR SEM-LOG16+ */
+
 /*
  * RR-CirKits LocoBuffer USB (http://www.rr-cirkits.com)
  */
@@ -514,6 +517,11 @@
  */
 #define FTDI_TAVIR_STK500_PID	0xFA33	/* STK500 AVR programmer */
 
+/*
+ * TIAO product ids (FTDI_VID)
+ * http://www.tiaowiki.com/w/Main_Page
+ */
+#define FTDI_TIAO_UMPA_PID	0x8a98	/* TIAO/DIYGADGET USB Multi-Protocol Adapter */
 
 
 /********************************/
@@ -539,7 +547,10 @@
 /*
  * Microchip Technology, Inc.
  *
- * MICROCHIP_VID (0x04D8) and MICROCHIP_USB_BOARD_PID (0x000A) are also used by:
+ * MICROCHIP_VID (0x04D8) and MICROCHIP_USB_BOARD_PID (0x000A) are
+ * used by single function CDC ACM class based firmware demo
+ * applications.  The VID/PID has also been used in firmware
+ * emulating FTDI serial chips by:
  * Hornby Elite - Digital Command Control Console
  * http://www.hornby.com/hornby-dcc/controllers/
  */
@@ -791,8 +802,34 @@
  * Physik Instrumente
  * http://www.physikinstrumente.com/en/products/
  */
+/* These two devices use the VID of FTDI */
+#define PI_C865_PID	0xe0a0  /* PI C-865 Piezomotor Controller */
+#define PI_C857_PID	0xe0a1  /* PI Encoder Trigger Box */
+
 #define PI_VID              0x1a72  /* Vendor ID */
-#define PI_E861_PID         0x1008  /* E-861 piezo controller USB connection */
+#define PI_C866_PID	0x1000  /* PI C-866 Piezomotor Controller */
+#define PI_C663_PID	0x1001  /* PI C-663 Mercury-Step */
+#define PI_C725_PID	0x1002  /* PI C-725 Piezomotor Controller */
+#define PI_E517_PID	0x1005  /* PI E-517 Digital Piezo Controller Operation Module */
+#define PI_C863_PID	0x1007  /* PI C-863 */
+#define PI_E861_PID	0x1008  /* PI E-861 Piezomotor Controller */
+#define PI_C867_PID	0x1009  /* PI C-867 Piezomotor Controller */
+#define PI_E609_PID	0x100D  /* PI E-609 Digital Piezo Controller */
+#define PI_E709_PID	0x100E  /* PI E-709 Digital Piezo Controller */
+#define PI_100F_PID	0x100F  /* PI Digital Piezo Controller */
+#define PI_1011_PID	0x1011  /* PI Digital Piezo Controller */
+#define PI_1012_PID	0x1012  /* PI Motion Controller */
+#define PI_1013_PID	0x1013  /* PI Motion Controller */
+#define PI_1014_PID	0x1014  /* PI Device */
+#define PI_1015_PID	0x1015  /* PI Device */
+#define PI_1016_PID	0x1016  /* PI Digital Servo Module */
+
+/*
+ * Kondo Kagaku Co.Ltd.
+ * http://www.kondo-robot.com/EN
+ */
+#define KONDO_VID 		0x165c
+#define KONDO_USB_SERIAL_PID	0x0002
 
 /*
  * Bayer Ascensia Contour blood glucose meter USB-converter cable.
diff --git a/drivers/usb/serial/funsoft.c b/drivers/usb/serial/funsoft.c
index 235707961ca..9362f8fd238 100644
--- a/drivers/usb/serial/funsoft.c
+++ b/drivers/usb/serial/funsoft.c
@@ -16,8 +16,6 @@
 #include <linux/usb/serial.h>
 #include <linux/uaccess.h>
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x1404, 0xcddc) },
 	{ },
@@ -40,6 +38,3 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 346c15a5106..3ee92648c02 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -41,9 +41,6 @@
 /* the mode to be set when the port ist opened */
 static int initial_mode = 1;
 
-/* debug flag */
-static bool debug;
-
 #define GARMIN_VENDOR_ID             0x091E
 
 /*
@@ -258,10 +255,7 @@ static void send_to_tty(struct usb_serial_port *port,
 	struct tty_struct *tty = tty_port_tty_get(&port->port);
 
 	if (tty && actual_length) {
-
-		usb_serial_debug_data(debug, &port->dev,
-					__func__, actual_length, data);
-
+		usb_serial_debug_data(&port->dev, __func__, actual_length, data);
 		tty_insert_flip_string(tty, data, actual_length);
 		tty_flip_buffer_push(tty);
 	}
@@ -303,8 +297,9 @@ static int pkt_add(struct garmin_data *garmin_data_p,
 		state = garmin_data_p->state;
 		spin_unlock_irqrestore(&garmin_data_p->lock, flags);
 
-		dbg("%s - added: pkt: %d - %d bytes",
-			__func__, pkt->seq, data_length);
+		dev_dbg(&garmin_data_p->port->dev,
+			"%s - added: pkt: %d - %d bytes\n", __func__,
+			pkt->seq, data_length);
 
 		/* in serial mode, if someone is waiting for data from
 		   the device, convert and send the next packet to tty. */
@@ -359,7 +354,8 @@ static int gsp_send_ack(struct garmin_data *garmin_data_p, __u8 pkt_id)
 	__u8 *ptr = pkt;
 	unsigned  l = 0;
 
-	dbg("%s - pkt-id: 0x%X.", __func__, 0xFF & pkt_id);
+	dev_dbg(&garmin_data_p->port->dev, "%s - pkt-id: 0x%X.\n", __func__,
+		0xFF & pkt_id);
 
 	*ptr++ = DLE;
 	*ptr++ = ACK;
@@ -399,20 +395,20 @@ static int gsp_send_ack(struct garmin_data *garmin_data_p, __u8 pkt_id)
  */
 static int gsp_rec_packet(struct garmin_data *garmin_data_p, int count)
 {
+	struct device *dev = &garmin_data_p->port->dev;
 	unsigned long flags;
 	const __u8 *recpkt = garmin_data_p->inbuffer+GSP_INITIAL_OFFSET;
 	__le32 *usbdata = (__le32 *) garmin_data_p->inbuffer;
-
 	int cksum = 0;
 	int n = 0;
 	int pktid = recpkt[0];
 	int size = recpkt[1];
 
-	usb_serial_debug_data(debug, &garmin_data_p->port->dev,
-			       __func__, count-GSP_INITIAL_OFFSET, recpkt);
+	usb_serial_debug_data(&garmin_data_p->port->dev, __func__,
+			      count-GSP_INITIAL_OFFSET, recpkt);
 
 	if (size != (count-GSP_INITIAL_OFFSET-3)) {
-		dbg("%s - invalid size, expected %d bytes, got %d",
+		dev_dbg(dev, "%s - invalid size, expected %d bytes, got %d\n",
 			__func__, size, (count-GSP_INITIAL_OFFSET-3));
 		return -EINVPKT;
 	}
@@ -422,8 +418,8 @@ static int gsp_rec_packet(struct garmin_data *garmin_data_p, int count)
 
 	/* sanity check, remove after test ... */
 	if ((__u8 *)&(usbdata[3]) != recpkt) {
-		dbg("%s - ptr mismatch %p - %p",
-			__func__, &(usbdata[4]), recpkt);
+		dev_dbg(dev, "%s - ptr mismatch %p - %p\n", __func__,
+			&(usbdata[4]), recpkt);
 		return -EINVPKT;
 	}
 
@@ -433,7 +429,7 @@ static int gsp_rec_packet(struct garmin_data *garmin_data_p, int count)
 	}
 
 	if ((0xff & (cksum + *recpkt)) != 0) {
-		dbg("%s - invalid checksum, expected %02x, got %02x",
+		dev_dbg(dev, "%s - invalid checksum, expected %02x, got %02x\n",
 			__func__, 0xff & -cksum, 0xff & *recpkt);
 		return -EINVPKT;
 	}
@@ -480,6 +476,7 @@ static int gsp_rec_packet(struct garmin_data *garmin_data_p, int count)
 static int gsp_receive(struct garmin_data *garmin_data_p,
 		       const unsigned char *buf, int count)
 {
+	struct device *dev = &garmin_data_p->port->dev;
 	unsigned long flags;
 	int offs = 0;
 	int ack_or_nak_seen = 0;
@@ -500,7 +497,7 @@ static int gsp_receive(struct garmin_data *garmin_data_p,
 	skip = garmin_data_p->flags & FLAGS_GSP_SKIP;
 	spin_unlock_irqrestore(&garmin_data_p->lock, flags);
 
-	/* dbg("%s - dle=%d skip=%d size=%d count=%d",
+	/* dev_dbg(dev, "%s - dle=%d skip=%d size=%d count=%d\n",
 		__func__, dleSeen, skip, size, count); */
 
 	if (size == 0)
@@ -530,12 +527,12 @@ static int gsp_receive(struct garmin_data *garmin_data_p,
 
 				if (data == ACK) {
 					ack_or_nak_seen = ACK;
-					dbg("ACK packet complete.");
+					dev_dbg(dev, "ACK packet complete.\n");
 				} else if (data == NAK) {
 					ack_or_nak_seen = NAK;
-					dbg("NAK packet complete.");
+					dev_dbg(dev, "NAK packet complete.\n");
 				} else {
-					dbg("packet complete - id=0x%X.",
+					dev_dbg(dev, "packet complete - id=0x%X.\n",
 						0xFF & data);
 					gsp_rec_packet(garmin_data_p, size);
 				}
@@ -557,7 +554,7 @@ static int gsp_receive(struct garmin_data *garmin_data_p,
 		}
 
 		if (size >= GPS_IN_BUFSIZ) {
-			dbg("%s - packet too large.", __func__);
+			dev_dbg(dev, "%s - packet too large.\n", __func__);
 			skip = 1;
 			size = GSP_INITIAL_OFFSET;
 			dleSeen = 0;
@@ -602,6 +599,7 @@ static int gsp_receive(struct garmin_data *garmin_data_p,
 static int gsp_send(struct garmin_data *garmin_data_p,
 		    const unsigned char *buf, int count)
 {
+	struct device *dev = &garmin_data_p->port->dev;
 	const unsigned char *src;
 	unsigned char *dst;
 	int pktid = 0;
@@ -610,12 +608,12 @@ static int gsp_send(struct garmin_data *garmin_data_p,
 	int i = 0;
 	int k;
 
-	dbg("%s - state %d - %d bytes.", __func__,
-					garmin_data_p->state, count);
+	dev_dbg(dev, "%s - state %d - %d bytes.\n", __func__,
+		garmin_data_p->state, count);
 
 	k = garmin_data_p->outsize;
 	if ((k+count) > GPS_OUT_BUFSIZ) {
-		dbg("packet too large");
+		dev_dbg(dev, "packet too large\n");
 		garmin_data_p->outsize = 0;
 		return -4;
 	}
@@ -634,28 +632,28 @@ static int gsp_send(struct garmin_data *garmin_data_p,
 		return 0;
 	}
 
-	dbg("%s - %d bytes in buffer, %d bytes in pkt.", __func__, k, i);
+	dev_dbg(dev, "%s - %d bytes in buffer, %d bytes in pkt.\n", __func__, k, i);
 
 	/* garmin_data_p->outbuffer now contains a complete packet */
 
-	usb_serial_debug_data(debug, &garmin_data_p->port->dev,
-				__func__, k, garmin_data_p->outbuffer);
+	usb_serial_debug_data(&garmin_data_p->port->dev, __func__, k,
+			      garmin_data_p->outbuffer);
 
 	garmin_data_p->outsize = 0;
 
 	if (GARMIN_LAYERID_APPL != getLayerId(garmin_data_p->outbuffer)) {
-		dbg("not an application packet (%d)",
+		dev_dbg(dev, "not an application packet (%d)\n",
 				getLayerId(garmin_data_p->outbuffer));
 		return -1;
 	}
 
 	if (pktid > 255) {
-		dbg("packet-id %d too large", pktid);
+		dev_dbg(dev, "packet-id %d too large\n", pktid);
 		return -2;
 	}
 
 	if (datalen > 255) {
-		dbg("packet-size %d too large", datalen);
+		dev_dbg(dev, "packet-size %d too large\n", datalen);
 		return -3;
 	}
 
@@ -722,7 +720,7 @@ static int gsp_next_packet(struct garmin_data *garmin_data_p)
 	struct garmin_packet *pkt = NULL;
 
 	while ((pkt = pkt_pop(garmin_data_p)) != NULL) {
-		dbg("%s - next pkt: %d", __func__, pkt->seq);
+		dev_dbg(&garmin_data_p->port->dev, "%s - next pkt: %d\n", __func__, pkt->seq);
 		result = gsp_send(garmin_data_p, pkt->data, pkt->size);
 		if (result > 0) {
 			kfree(pkt);
@@ -768,7 +766,9 @@ static int nat_receive(struct garmin_data *garmin_data_p,
 		if (len >= GPS_IN_BUFSIZ) {
 			/* seems to be an invalid packet, ignore rest
 			   of input */
-			dbg("%s - packet size too large: %d", __func__, len);
+			dev_dbg(&garmin_data_p->port->dev,
+				"%s - packet size too large: %d\n",
+				__func__, len);
 			garmin_data_p->insize = 0;
 			count = 0;
 			result = -EINVPKT;
@@ -849,10 +849,10 @@ static int process_resetdev_request(struct usb_serial_port *port)
 	spin_unlock_irqrestore(&garmin_data_p->lock, flags);
 
 	usb_kill_urb(port->interrupt_in_urb);
-	dbg("%s - usb_reset_device", __func__);
+	dev_dbg(&port->dev, "%s - usb_reset_device\n", __func__);
 	status = usb_reset_device(port->serial->dev);
 	if (status)
-		dbg("%s - usb_reset_device failed: %d",
+		dev_dbg(&port->dev, "%s - usb_reset_device failed: %d\n",
 			__func__, status);
 	return status;
 }
@@ -889,7 +889,7 @@ static int garmin_init_session(struct usb_serial_port *port)
 	if (status == 0) {
 		usb_kill_urb(port->interrupt_in_urb);
 
-		dbg("%s - adding interrupt input", __func__);
+		dev_dbg(&serial->dev->dev, "%s - adding interrupt input\n", __func__);
 		status = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 		if (status)
 			dev_err(&serial->dev->dev,
@@ -902,7 +902,7 @@ static int garmin_init_session(struct usb_serial_port *port)
 	 * gpsbabel/jeeps/gpslibusb.c gusb_reset_toggles()
 	 */
 	if (status == 0) {
-		dbg("%s - starting session ...", __func__);
+		dev_dbg(&serial->dev->dev, "%s - starting session ...\n", __func__);
 		garmin_data_p->state = STATE_ACTIVE;
 
 		for (i = 0; i < 3; i++) {
@@ -952,8 +952,8 @@ static void garmin_close(struct usb_serial_port *port)
 	struct usb_serial *serial = port->serial;
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 
-	dbg("%s - port %d - mode=%d state=%d flags=0x%X", __func__,
-		port->number, garmin_data_p->mode,
+	dev_dbg(&port->dev, "%s - port %d - mode=%d state=%d flags=0x%X\n",
+		__func__, port->number, garmin_data_p->mode,
 		garmin_data_p->state, garmin_data_p->flags);
 
 	if (!serial)
@@ -1032,7 +1032,7 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 
 	memcpy(buffer, buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, buffer);
 
 	usb_fill_bulk_urb(urb, serial->dev,
 				usb_sndbulkpipe(serial->dev,
@@ -1073,11 +1073,12 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 static int garmin_write(struct tty_struct *tty, struct usb_serial_port *port,
 					 const unsigned char *buf, int count)
 {
+	struct device *dev = &port->dev;
 	int pktid, pktsiz, len;
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 	__le32 *privpkt = (__le32 *)garmin_data_p->privpkt;
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count, buf);
+	usb_serial_debug_data(dev, __func__, count, buf);
 
 	if (garmin_data_p->state == STATE_RESET)
 		return -EIO;
@@ -1097,27 +1098,18 @@ static int garmin_write(struct tty_struct *tty, struct usb_serial_port *port,
 		    && GARMIN_LAYERID_PRIVATE ==
 				getLayerId(garmin_data_p->privpkt)) {
 
-			dbg("%s - processing private request %d",
+			dev_dbg(dev, "%s - processing private request %d\n",
 				__func__, pktid);
 
 			/* drop all unfinished transfers */
 			garmin_clear(garmin_data_p);
 
 			switch (pktid) {
-
-			case PRIV_PKTID_SET_DEBUG:
-				if (pktsiz != 4)
-					return -EINVPKT;
-				debug = __le32_to_cpu(privpkt[3]);
-				dbg("%s - debug level set to 0x%X",
-					__func__, debug);
-				break;
-
 			case PRIV_PKTID_SET_MODE:
 				if (pktsiz != 4)
 					return -EINVPKT;
 				garmin_data_p->mode = __le32_to_cpu(privpkt[3]);
-				dbg("%s - mode set to %d",
+				dev_dbg(dev, "%s - mode set to %d\n",
 					__func__, garmin_data_p->mode);
 				break;
 
@@ -1133,7 +1125,7 @@ static int garmin_write(struct tty_struct *tty, struct usb_serial_port *port,
 				if (pktsiz != 4)
 					return -EINVPKT;
 				initial_mode = __le32_to_cpu(privpkt[3]);
-				dbg("%s - initial_mode set to %d",
+				dev_dbg(dev, "%s - initial_mode set to %d\n",
 					__func__,
 					garmin_data_p->mode);
 				break;
@@ -1169,7 +1161,7 @@ static void garmin_read_process(struct garmin_data *garmin_data_p,
 
 	if (garmin_data_p->flags & FLAGS_DROP_DATA) {
 		/* abort-transfer cmd is actice */
-		dbg("%s - pkt dropped", __func__);
+		dev_dbg(&garmin_data_p->port->dev, "%s - pkt dropped\n", __func__);
 	} else if (garmin_data_p->state != STATE_DISCONNECTED &&
 		garmin_data_p->state != STATE_RESET) {
 
@@ -1178,7 +1170,7 @@ static void garmin_read_process(struct garmin_data *garmin_data_p,
 		   send it directly to the tty port */
 		if (garmin_data_p->flags & FLAGS_QUEUING) {
 			pkt_add(garmin_data_p, data, data_length);
-		} else if (bulk_data || 
+		} else if (bulk_data ||
 			   getLayerId(data) == GARMIN_LAYERID_APPL) {
 
 			spin_lock_irqsave(&garmin_data_p->lock, flags);
@@ -1208,18 +1200,17 @@ static void garmin_read_bulk_callback(struct urb *urb)
 	int retval;
 
 	if (!serial) {
-		dbg("%s - bad serial pointer, exiting", __func__);
+		dev_dbg(&urb->dev->dev, "%s - bad serial pointer, exiting\n", __func__);
 		return;
 	}
 
 	if (status) {
-		dbg("%s - nonzero read bulk status received: %d",
+		dev_dbg(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n",
 			__func__, status);
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev,
-				__func__, urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	garmin_read_process(garmin_data_p, data, urb->actual_length, 1);
 
@@ -1239,11 +1230,11 @@ static void garmin_read_bulk_callback(struct urb *urb)
 			retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 			if (retval)
 				dev_err(&port->dev,
-					"%s - failed resubmitting read urb, "
-					"error %d\n", __func__, retval);
+					"%s - failed resubmitting read urb, error %d\n",
+					__func__, retval);
 		}
 	} else {
-		dbg("%s - end of bulk data", __func__);
+		dev_dbg(&port->dev, "%s - end of bulk data\n", __func__);
 		spin_lock_irqsave(&garmin_data_p->lock, flags);
 		garmin_data_p->flags &= ~FLAGS_BULK_IN_ACTIVE;
 		spin_unlock_irqrestore(&garmin_data_p->lock, flags);
@@ -1268,23 +1259,23 @@ static void garmin_read_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
 			__func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d",
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n",
 			__func__, status);
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-				urb->actual_length, urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
+			      urb->transfer_buffer);
 
 	if (urb->actual_length == sizeof(GARMIN_BULK_IN_AVAIL_REPLY) &&
 	    0 == memcmp(data, GARMIN_BULK_IN_AVAIL_REPLY,
 				sizeof(GARMIN_BULK_IN_AVAIL_REPLY))) {
 
-		dbg("%s - bulk data available.", __func__);
+		dev_dbg(&port->dev, "%s - bulk data available.\n", __func__);
 
 		if (0 == (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) {
 
@@ -1319,7 +1310,7 @@ static void garmin_read_int_callback(struct urb *urb)
 		garmin_data_p->serial_num = __le32_to_cpup(
 					(__le32 *)(data+GARMIN_PKTHDR_LENGTH));
 
-		dbg("%s - start-of-session reply seen - serial %u.",
+		dev_dbg(&port->dev, "%s - start-of-session reply seen - serial %u.\n",
 			__func__, garmin_data_p->serial_num);
 	}
 
@@ -1495,7 +1486,5 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-module_param(debug, bool, S_IWUSR | S_IRUGO);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
 module_param(initial_mode, int, S_IRUGO);
 MODULE_PARM_DESC(initial_mode, "Initial mode");
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 9b026bf7afe..296612153ea 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -24,8 +24,6 @@
 #include <linux/kfifo.h>
 #include <linux/serial.h>
 
-static int debug;
-
 #ifdef CONFIG_USB_SERIAL_GENERIC
 
 static __u16 vendor  = 0x05f9;
@@ -60,11 +58,10 @@ static struct usb_serial_driver * const serial_drivers[] = {
 
 #endif
 
-int usb_serial_generic_register(int _debug)
+int usb_serial_generic_register(void)
 {
 	int retval = 0;
 
-	debug = _debug;
 #ifdef CONFIG_USB_SERIAL_GENERIC
 	generic_device_ids[0].idVendor = vendor;
 	generic_device_ids[0].idProduct = product;
@@ -171,8 +168,7 @@ retry:
 						urb->transfer_buffer,
 						port->bulk_out_size);
 	urb->transfer_buffer_length = count;
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-						urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, urb->transfer_buffer);
 	spin_lock_irqsave(&port->lock, flags);
 	port->tx_bytes += count;
 	spin_unlock_irqrestore(&port->lock, flags);
@@ -365,8 +361,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-						urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 	port->serial->type->process_read_urb(urb);
 
 	/* Throttle the device if requested by tty */
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index e1f5ccd1e8f..8e6faaf3580 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -190,9 +190,6 @@ static const struct divisor_table_entry divisor_table[] = {
 	{   230400,	1},
 };
 
-/* local variables */
-static bool debug;
-
 /* Number of outstanding Command Write Urbs */
 static atomic_t CmdUrbs = ATOMIC_INIT(0);
 
@@ -244,7 +241,7 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
 				__u8 lsr, __u8 data);
 static int  send_iosp_ext_cmd(struct edgeport_port *edge_port, __u8 command,
 				__u8 param);
-static int  calc_baud_rate_divisor(int baud_rate, int *divisor);
+static int  calc_baud_rate_divisor(struct device *dev, int baud_rate, int *divisor);
 static int  send_cmd_write_baud_rate(struct edgeport_port *edge_port,
 				int baudRate);
 static void change_port_settings(struct tty_struct *tty,
@@ -286,6 +283,7 @@ static void unicode_to_ascii(char *string, int buflen,
  ************************************************************************/
 static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
 {
+	struct device *dev = &edge_serial->serial->dev->dev;
 	__u32 BootCurVer;
 	__u32 BootNewVer;
 	__u8 BootMajorVersion;
@@ -311,7 +309,7 @@ static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
 	response = request_ihex_firmware(&fw, fw_name,
 					 &edge_serial->serial->dev->dev);
 	if (response) {
-		printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
+		dev_err(dev, "Failed to load image \"%s\" err %d\n",
 		       fw_name, response);
 		return;
 	}
@@ -330,20 +328,20 @@ static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
 		     (BootMinorVersion << 16) +
 		      BootBuildNumber;
 
-	dbg("Current Boot Image version %d.%d.%d",
+	dev_dbg(dev, "Current Boot Image version %d.%d.%d\n",
 	    edge_serial->boot_descriptor.MajorVersion,
 	    edge_serial->boot_descriptor.MinorVersion,
 	    le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
 
 
 	if (BootNewVer > BootCurVer) {
-		dbg("**Update Boot Image from %d.%d.%d to %d.%d.%d",
+		dev_dbg(dev, "**Update Boot Image from %d.%d.%d to %d.%d.%d\n",
 		    edge_serial->boot_descriptor.MajorVersion,
 		    edge_serial->boot_descriptor.MinorVersion,
 		    le16_to_cpu(edge_serial->boot_descriptor.BuildNumber),
 		    BootMajorVersion, BootMinorVersion, BootBuildNumber);
 
-		dbg("Downloading new Boot Image");
+		dev_dbg(dev, "Downloading new Boot Image\n");
 
 		for (rec = ihex_next_binrec(rec); rec;
 		     rec = ihex_next_binrec(rec)) {
@@ -362,7 +360,7 @@ static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
 			}
 		}
 	} else {
-		dbg("Boot Image -- already up to date");
+		dev_dbg(dev, "Boot Image -- already up to date\n");
 	}
 	release_firmware(fw);
 }
@@ -379,7 +377,7 @@ static int get_string_desc(struct usb_device *dev, int Id,
 	struct usb_string_descriptor StringDesc;
 	struct usb_string_descriptor *pStringDesc;
 
-	dbg("%s - USB String ID = %d", __func__, Id);
+	dev_dbg(&dev->dev, "%s - USB String ID = %d\n", __func__, Id);
 
 	if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc,
 						sizeof(StringDesc)))
@@ -400,34 +398,39 @@ static int get_string_desc(struct usb_device *dev, int Id,
 }
 #endif
 
-static void dump_product_info(struct edgeport_product_info *product_info)
+static void dump_product_info(struct edgeport_serial *edge_serial,
+			      struct edgeport_product_info *product_info)
 {
+	struct device *dev = &edge_serial->serial->dev->dev;
+
 	/* Dump Product Info structure */
-	dbg("**Product Information:");
-	dbg("  ProductId             %x", product_info->ProductId);
-	dbg("  NumPorts              %d", product_info->NumPorts);
-	dbg("  ProdInfoVer           %d", product_info->ProdInfoVer);
-	dbg("  IsServer              %d", product_info->IsServer);
-	dbg("  IsRS232               %d", product_info->IsRS232);
-	dbg("  IsRS422               %d", product_info->IsRS422);
-	dbg("  IsRS485               %d", product_info->IsRS485);
-	dbg("  RomSize               %d", product_info->RomSize);
-	dbg("  RamSize               %d", product_info->RamSize);
-	dbg("  CpuRev                %x", product_info->CpuRev);
-	dbg("  BoardRev              %x", product_info->BoardRev);
-	dbg("  BootMajorVersion      %d.%d.%d", product_info->BootMajorVersion,
-	    product_info->BootMinorVersion,
-	    le16_to_cpu(product_info->BootBuildNumber));
-	dbg("  FirmwareMajorVersion  %d.%d.%d",
-			product_info->FirmwareMajorVersion,
-			product_info->FirmwareMinorVersion,
-			le16_to_cpu(product_info->FirmwareBuildNumber));
-	dbg("  ManufactureDescDate   %d/%d/%d",
-			product_info->ManufactureDescDate[0],
-			product_info->ManufactureDescDate[1],
-			product_info->ManufactureDescDate[2]+1900);
-	dbg("  iDownloadFile         0x%x", product_info->iDownloadFile);
-	dbg("  EpicVer               %d", product_info->EpicVer);
+	dev_dbg(dev, "**Product Information:\n");
+	dev_dbg(dev, "  ProductId             %x\n", product_info->ProductId);
+	dev_dbg(dev, "  NumPorts              %d\n", product_info->NumPorts);
+	dev_dbg(dev, "  ProdInfoVer           %d\n", product_info->ProdInfoVer);
+	dev_dbg(dev, "  IsServer              %d\n", product_info->IsServer);
+	dev_dbg(dev, "  IsRS232               %d\n", product_info->IsRS232);
+	dev_dbg(dev, "  IsRS422               %d\n", product_info->IsRS422);
+	dev_dbg(dev, "  IsRS485               %d\n", product_info->IsRS485);
+	dev_dbg(dev, "  RomSize               %d\n", product_info->RomSize);
+	dev_dbg(dev, "  RamSize               %d\n", product_info->RamSize);
+	dev_dbg(dev, "  CpuRev                %x\n", product_info->CpuRev);
+	dev_dbg(dev, "  BoardRev              %x\n", product_info->BoardRev);
+	dev_dbg(dev, "  BootMajorVersion      %d.%d.%d\n",
+		product_info->BootMajorVersion,
+		product_info->BootMinorVersion,
+		le16_to_cpu(product_info->BootBuildNumber));
+	dev_dbg(dev, "  FirmwareMajorVersion  %d.%d.%d\n",
+		product_info->FirmwareMajorVersion,
+		product_info->FirmwareMinorVersion,
+		le16_to_cpu(product_info->FirmwareBuildNumber));
+	dev_dbg(dev, "  ManufactureDescDate   %d/%d/%d\n",
+		product_info->ManufactureDescDate[0],
+		product_info->ManufactureDescDate[1],
+		product_info->ManufactureDescDate[2]+1900);
+	dev_dbg(dev, "  iDownloadFile         0x%x\n",
+		product_info->iDownloadFile);
+	dev_dbg(dev, "  EpicVer               %d\n", product_info->EpicVer);
 }
 
 static void get_product_info(struct edgeport_serial *edge_serial)
@@ -462,7 +465,7 @@ static void get_product_info(struct edgeport_serial *edge_serial)
 		product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251;
 	else
 		product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930;
- 
+
 	/* Determine Product type and set appropriate flags */
 	switch (DEVICE_ID_FROM_USB_PRODUCT_ID(product_info->ProductId)) {
 	case ION_DEVICE_ID_EDGEPORT_COMPATIBLE:
@@ -490,7 +493,7 @@ static void get_product_info(struct edgeport_serial *edge_serial)
 		break;
 	}
 
-	dump_product_info(product_info);
+	dump_product_info(edge_serial, product_info);
 }
 
 static int get_epic_descriptor(struct edgeport_serial *ep)
@@ -500,6 +503,7 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
 	struct edgeport_product_info *product_info = &ep->product_info;
 	struct edge_compatibility_descriptor *epic = &ep->epic_descriptor;
 	struct edge_compatibility_bits *bits;
+	struct device *dev = &serial->dev->dev;
 
 	ep->is_epic = 0;
 	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
@@ -509,8 +513,6 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
 				 sizeof(struct edge_compatibility_descriptor),
 				 300);
 
-	dbg("%s result = %d", __func__, result);
-
 	if (result > 0) {
 		ep->is_epic = 1;
 		memset(product_info, 0, sizeof(struct edgeport_product_info));
@@ -524,23 +526,23 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
 		product_info->EpicVer = epic->EpicVer;
 		product_info->Epic = epic->Supports;
 		product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE;
-		dump_product_info(product_info);
+		dump_product_info(ep, product_info);
 
 		bits = &ep->epic_descriptor.Supports;
-		dbg("**EPIC descriptor:");
-		dbg("  VendEnableSuspend: %s", bits->VendEnableSuspend	? "TRUE": "FALSE");
-		dbg("  IOSPOpen         : %s", bits->IOSPOpen		? "TRUE": "FALSE");
-		dbg("  IOSPClose        : %s", bits->IOSPClose		? "TRUE": "FALSE");
-		dbg("  IOSPChase        : %s", bits->IOSPChase		? "TRUE": "FALSE");
-		dbg("  IOSPSetRxFlow    : %s", bits->IOSPSetRxFlow	? "TRUE": "FALSE");
-		dbg("  IOSPSetTxFlow    : %s", bits->IOSPSetTxFlow	? "TRUE": "FALSE");
-		dbg("  IOSPSetXChar     : %s", bits->IOSPSetXChar	? "TRUE": "FALSE");
-		dbg("  IOSPRxCheck      : %s", bits->IOSPRxCheck	? "TRUE": "FALSE");
-		dbg("  IOSPSetClrBreak  : %s", bits->IOSPSetClrBreak	? "TRUE": "FALSE");
-		dbg("  IOSPWriteMCR     : %s", bits->IOSPWriteMCR	? "TRUE": "FALSE");
-		dbg("  IOSPWriteLCR     : %s", bits->IOSPWriteLCR	? "TRUE": "FALSE");
-		dbg("  IOSPSetBaudRate  : %s", bits->IOSPSetBaudRate	? "TRUE": "FALSE");
-		dbg("  TrueEdgeport     : %s", bits->TrueEdgeport	? "TRUE": "FALSE");
+		dev_dbg(dev, "**EPIC descriptor:\n");
+		dev_dbg(dev, "  VendEnableSuspend: %s\n", bits->VendEnableSuspend ? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPOpen         : %s\n", bits->IOSPOpen	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPClose        : %s\n", bits->IOSPClose	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPChase        : %s\n", bits->IOSPChase	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPSetRxFlow    : %s\n", bits->IOSPSetRxFlow	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPSetTxFlow    : %s\n", bits->IOSPSetTxFlow	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPSetXChar     : %s\n", bits->IOSPSetXChar	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPRxCheck      : %s\n", bits->IOSPRxCheck	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPSetClrBreak  : %s\n", bits->IOSPSetClrBreak	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPWriteMCR     : %s\n", bits->IOSPWriteMCR	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPWriteLCR     : %s\n", bits->IOSPWriteLCR	? "TRUE": "FALSE");
+		dev_dbg(dev, "  IOSPSetBaudRate  : %s\n", bits->IOSPSetBaudRate	? "TRUE": "FALSE");
+		dev_dbg(dev, "  TrueEdgeport     : %s\n", bits->TrueEdgeport	? "TRUE": "FALSE");
 	}
 
 	return result;
@@ -561,7 +563,8 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
  *****************************************************************************/
 static void edge_interrupt_callback(struct urb *urb)
 {
-	struct edgeport_serial	*edge_serial = urb->context;
+	struct edgeport_serial *edge_serial = urb->context;
+	struct device *dev;
 	struct edgeport_port *edge_port;
 	struct usb_serial_port *port;
 	struct tty_struct *tty;
@@ -574,8 +577,6 @@ static void edge_interrupt_callback(struct urb *urb)
 	int result;
 	int status = urb->status;
 
-	dbg("%s", __func__);
-
 	switch (status) {
 	case 0:
 		/* success */
@@ -584,36 +585,42 @@ static void edge_interrupt_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
-						__func__, status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, status);
 		goto exit;
 	}
 
+	dev = &edge_serial->serial->dev->dev;
+
 	/* process this interrupt-read even if there are no ports open */
 	if (length) {
-		usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
-						__func__, length, data);
+		usb_serial_debug_data(dev, __func__, length, data);
 
 		if (length > 1) {
 			bytes_avail = data[0] | (data[1] << 8);
 			if (bytes_avail) {
 				spin_lock(&edge_serial->es_lock);
 				edge_serial->rxBytesAvail += bytes_avail;
-				dbg("%s - bytes_avail=%d, rxBytesAvail=%d, read_in_progress=%d", __func__, bytes_avail, edge_serial->rxBytesAvail, edge_serial->read_in_progress);
+				dev_dbg(dev,
+					"%s - bytes_avail=%d, rxBytesAvail=%d, read_in_progress=%d\n",
+					__func__, bytes_avail,
+					edge_serial->rxBytesAvail,
+					edge_serial->read_in_progress);
 
 				if (edge_serial->rxBytesAvail > 0 &&
 				    !edge_serial->read_in_progress) {
-					dbg("%s - posting a read", __func__);
+					dev_dbg(dev, "%s - posting a read\n", __func__);
 					edge_serial->read_in_progress = true;
 
 					/* we have pending bytes on the
 					   bulk in pipe, send a request */
 					result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
 					if (result) {
-						dev_err(&edge_serial->serial->dev->dev, "%s - usb_submit_urb(read bulk) failed with result = %d\n", __func__, result);
+						dev_err(dev,
+							"%s - usb_submit_urb(read bulk) failed with result = %d\n",
+							__func__, result);
 						edge_serial->read_in_progress = false;
 					}
 				}
@@ -633,9 +640,9 @@ static void edge_interrupt_callback(struct urb *urb)
 					spin_lock(&edge_port->ep_lock);
 					edge_port->txCredits += txCredits;
 					spin_unlock(&edge_port->ep_lock);
-					dbg("%s - txcredits for port%d = %d",
-							__func__, portNumber,
-							edge_port->txCredits);
+					dev_dbg(dev, "%s - txcredits for port%d = %d\n",
+						__func__, portNumber,
+						edge_port->txCredits);
 
 					/* tell the tty driver that something
 					   has changed */
@@ -673,49 +680,48 @@ exit:
 static void edge_bulk_in_callback(struct urb *urb)
 {
 	struct edgeport_serial	*edge_serial = urb->context;
+	struct device *dev;
 	unsigned char		*data = urb->transfer_buffer;
 	int			retval;
 	__u16			raw_data_length;
 	int status = urb->status;
 
-	dbg("%s", __func__);
-
 	if (status) {
-		dbg("%s - nonzero read bulk status received: %d",
-		    __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n",
+			__func__, status);
 		edge_serial->read_in_progress = false;
 		return;
 	}
 
 	if (urb->actual_length == 0) {
-		dbg("%s - read bulk callback with no data", __func__);
+		dev_dbg(&urb->dev->dev, "%s - read bulk callback with no data\n", __func__);
 		edge_serial->read_in_progress = false;
 		return;
 	}
 
+	dev = &edge_serial->serial->dev->dev;
 	raw_data_length = urb->actual_length;
 
-	usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
-					__func__, raw_data_length, data);
+	usb_serial_debug_data(dev, __func__, raw_data_length, data);
 
 	spin_lock(&edge_serial->es_lock);
 
 	/* decrement our rxBytes available by the number that we just got */
 	edge_serial->rxBytesAvail -= raw_data_length;
 
-	dbg("%s - Received = %d, rxBytesAvail %d", __func__,
-				raw_data_length, edge_serial->rxBytesAvail);
+	dev_dbg(dev, "%s - Received = %d, rxBytesAvail %d\n", __func__,
+		raw_data_length, edge_serial->rxBytesAvail);
 
 	process_rcvd_data(edge_serial, data, urb->actual_length);
 
 	/* check to see if there's any more data for us to read */
 	if (edge_serial->rxBytesAvail > 0) {
-		dbg("%s - posting a read", __func__);
+		dev_dbg(dev, "%s - posting a read\n", __func__);
 		retval = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
 		if (retval) {
-			dev_err(&urb->dev->dev,
-				"%s - usb_submit_urb(read bulk) failed, "
-				"retval = %d\n", __func__, retval);
+			dev_err(dev,
+				"%s - usb_submit_urb(read bulk) failed, retval = %d\n",
+				__func__, retval);
 			edge_serial->read_in_progress = false;
 		}
 	} else {
@@ -737,11 +743,10 @@ static void edge_bulk_out_data_callback(struct urb *urb)
 	struct tty_struct *tty;
 	int status = urb->status;
 
-	dbg("%s", __func__);
-
 	if (status) {
-		dbg("%s - nonzero write bulk status received: %d",
-		    __func__, status);
+		dev_dbg(&urb->dev->dev,
+			"%s - nonzero write bulk status received: %d\n",
+			__func__, status);
 	}
 
 	tty = tty_port_tty_get(&edge_port->port->port);
@@ -773,11 +778,9 @@ static void edge_bulk_out_cmd_callback(struct urb *urb)
 	struct tty_struct *tty;
 	int status = urb->status;
 
-	dbg("%s", __func__);
-
 	atomic_dec(&CmdUrbs);
-	dbg("%s - FREE URB %p (outstanding %d)", __func__,
-					urb, atomic_read(&CmdUrbs));
+	dev_dbg(&urb->dev->dev, "%s - FREE URB %p (outstanding %d)\n",
+		__func__, urb, atomic_read(&CmdUrbs));
 
 
 	/* clean up the transfer buffer */
@@ -787,8 +790,9 @@ static void edge_bulk_out_cmd_callback(struct urb *urb)
 	usb_free_urb(urb);
 
 	if (status) {
-		dbg("%s - nonzero write bulk status received: %d",
-							__func__, status);
+		dev_dbg(&urb->dev->dev,
+			"%s - nonzero write bulk status received: %d\n",
+			__func__, status);
 		return;
 	}
 
@@ -819,12 +823,11 @@ static void edge_bulk_out_cmd_callback(struct urb *urb)
 static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+	struct device *dev = &port->dev;
 	struct usb_serial *serial;
 	struct edgeport_serial *edge_serial;
 	int response;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return -ENODEV;
 
@@ -875,9 +878,8 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 		response = usb_submit_urb(edge_serial->interrupt_read_urb,
 								GFP_KERNEL);
 		if (response) {
-			dev_err(&port->dev,
-				"%s - Error %d submitting control urb\n",
-							__func__, response);
+			dev_err(dev, "%s - Error %d submitting control urb\n",
+				__func__, response);
 		}
 	}
 
@@ -902,8 +904,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 	response = send_iosp_ext_cmd(edge_port, IOSP_CMD_OPEN_PORT, 0);
 
 	if (response < 0) {
-		dev_err(&port->dev, "%s - error sending open port command\n",
-								__func__);
+		dev_err(dev, "%s - error sending open port command\n", __func__);
 		edge_port->openPending = false;
 		return -ENODEV;
 	}
@@ -914,7 +915,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	if (!edge_port->open) {
 		/* open timed out */
-		dbg("%s - open timedout", __func__);
+		dev_dbg(dev, "%s - open timedout\n", __func__);
 		edge_port->openPending = false;
 		return -ENODEV;
 	}
@@ -927,7 +928,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 	edge_port->txfifo.fifo	= kmalloc(edge_port->maxTxCredits, GFP_KERNEL);
 
 	if (!edge_port->txfifo.fifo) {
-		dbg("%s - no memory", __func__);
+		dev_dbg(dev, "%s - no memory\n", __func__);
 		edge_close(port);
 		return -ENOMEM;
 	}
@@ -937,15 +938,13 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 	edge_port->write_in_progress = false;
 
 	if (!edge_port->write_urb) {
-		dbg("%s - no memory", __func__);
+		dev_dbg(dev, "%s - no memory\n", __func__);
 		edge_close(port);
 		return -ENOMEM;
 	}
 
-	dbg("%s(%d) - Initialize TX fifo to %d bytes",
-			__func__, port->number, edge_port->maxTxCredits);
-
-	dbg("%s exited", __func__);
+	dev_dbg(dev, "%s(%d) - Initialize TX fifo to %d bytes\n",
+		__func__, port->number, edge_port->maxTxCredits);
 
 	return 0;
 }
@@ -963,6 +962,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
  ************************************************************************/
 static void block_until_chase_response(struct edgeport_port *edge_port)
 {
+	struct device *dev = &edge_port->port->dev;
 	DEFINE_WAIT(wait);
 	__u16 lastCredits;
 	int timeout = 1*HZ;
@@ -974,11 +974,11 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
 
 		/* Did we get our Chase response */
 		if (!edge_port->chaseResponsePending) {
-			dbg("%s - Got Chase Response", __func__);
+			dev_dbg(dev, "%s - Got Chase Response\n", __func__);
 
 			/* did we get all of our credit back? */
 			if (edge_port->txCredits == edge_port->maxTxCredits) {
-				dbg("%s - Got all credits", __func__);
+				dev_dbg(dev, "%s - Got all credits\n", __func__);
 				return;
 			}
 		}
@@ -994,12 +994,12 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
 			loop--;
 			if (loop == 0) {
 				edge_port->chaseResponsePending = false;
-				dbg("%s - Chase TIMEOUT", __func__);
+				dev_dbg(dev, "%s - Chase TIMEOUT\n", __func__);
 				return;
 			}
 		} else {
 			/* Reset timeout value back to 10 seconds */
-			dbg("%s - Last %d, Current %d", __func__,
+			dev_dbg(dev, "%s - Last %d, Current %d\n", __func__,
 					lastCredits, edge_port->txCredits);
 			loop = 10;
 		}
@@ -1019,6 +1019,7 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
  ************************************************************************/
 static void block_until_tx_empty(struct edgeport_port *edge_port)
 {
+	struct device *dev = &edge_port->port->dev;
 	DEFINE_WAIT(wait);
 	struct TxFifo *fifo = &edge_port->txfifo;
 	__u32 lastCount;
@@ -1031,7 +1032,7 @@ static void block_until_tx_empty(struct edgeport_port *edge_port)
 
 		/* Is the Edgeport Buffer empty? */
 		if (lastCount == 0) {
-			dbg("%s - TX Buffer Empty", __func__);
+			dev_dbg(dev, "%s - TX Buffer Empty\n", __func__);
 			return;
 		}
 
@@ -1041,13 +1042,13 @@ static void block_until_tx_empty(struct edgeport_port *edge_port)
 		schedule_timeout(timeout);
 		finish_wait(&edge_port->wait_chase, &wait);
 
-		dbg("%s wait", __func__);
+		dev_dbg(dev, "%s wait\n", __func__);
 
 		if (lastCount == fifo->count) {
 			/* No activity.. count down. */
 			loop--;
 			if (loop == 0) {
-				dbg("%s - TIMEOUT", __func__);
+				dev_dbg(dev, "%s - TIMEOUT\n", __func__);
 				return;
 			}
 		} else {
@@ -1068,8 +1069,6 @@ static void edge_close(struct usb_serial_port *port)
 	struct edgeport_port *edge_port;
 	int status;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	edge_serial = usb_get_serial_data(port->serial);
 	edge_port = usb_get_serial_port_data(port);
 	if (edge_serial == NULL || edge_port == NULL)
@@ -1086,7 +1085,7 @@ static void edge_close(struct usb_serial_port *port)
 		/* flush and chase */
 		edge_port->chaseResponsePending = true;
 
-		dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__);
+		dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CHASE_PORT\n", __func__);
 		status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
 		if (status == 0)
 			/* block until chase finished */
@@ -1099,7 +1098,7 @@ static void edge_close(struct usb_serial_port *port)
 	    ((edge_serial->is_epic) &&
 	     (edge_serial->epic_descriptor.Supports.IOSPClose))) {
 	       /* close the port */
-		dbg("%s - Sending IOSP_CMD_CLOSE_PORT", __func__);
+		dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CLOSE_PORT\n", __func__);
 		send_iosp_ext_cmd(edge_port, IOSP_CMD_CLOSE_PORT, 0);
 	}
 
@@ -1119,8 +1118,6 @@ static void edge_close(struct usb_serial_port *port)
 	}
 	kfree(edge_port->txfifo.fifo);
 	edge_port->txfifo.fifo = NULL;
-
-	dbg("%s exited", __func__);
 }
 
 /*****************************************************************************
@@ -1141,8 +1138,6 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 	int secondhalf;
 	unsigned long flags;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return -ENODEV;
 
@@ -1155,14 +1150,14 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 	copySize = min((unsigned int)count,
 				(edge_port->txCredits - fifo->count));
 
-	dbg("%s(%d) of %d byte(s) Fifo room  %d -- will copy %d bytes",
-			__func__, port->number, count,
+	dev_dbg(&port->dev, "%s(%d) of %d byte(s) Fifo room  %d -- will copy %d bytes\n",
+		__func__, port->number, count,
 			edge_port->txCredits - fifo->count, copySize);
 
 	/* catch writes of 0 bytes which the tty driver likes to give us,
 	   and when txCredits is empty */
 	if (copySize == 0) {
-		dbg("%s - copySize = Zero", __func__);
+		dev_dbg(&port->dev, "%s - copySize = Zero\n", __func__);
 		goto finish_write;
 	}
 
@@ -1175,13 +1170,12 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 	 */
 	bytesleft = fifo->size - fifo->head;
 	firsthalf = min(bytesleft, copySize);
-	dbg("%s - copy %d bytes of %d into fifo ", __func__,
-					firsthalf, bytesleft);
+	dev_dbg(&port->dev, "%s - copy %d bytes of %d into fifo \n", __func__,
+		firsthalf, bytesleft);
 
 	/* now copy our data */
 	memcpy(&fifo->fifo[fifo->head], data, firsthalf);
-	usb_serial_debug_data(debug, &port->dev, __func__,
-					firsthalf, &fifo->fifo[fifo->head]);
+	usb_serial_debug_data(&port->dev, __func__, firsthalf, &fifo->fifo[fifo->head]);
 
 	/* update the index and size */
 	fifo->head  += firsthalf;
@@ -1194,10 +1188,9 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 	secondhalf = copySize-firsthalf;
 
 	if (secondhalf) {
-		dbg("%s - copy rest of data %d", __func__, secondhalf);
+		dev_dbg(&port->dev, "%s - copy rest of data %d\n", __func__, secondhalf);
 		memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf);
-		usb_serial_debug_data(debug, &port->dev, __func__,
-					secondhalf, &fifo->fifo[fifo->head]);
+		usb_serial_debug_data(&port->dev, __func__, secondhalf, &fifo->fifo[fifo->head]);
 		/* update the index and size */
 		fifo->count += secondhalf;
 		fifo->head  += secondhalf;
@@ -1212,8 +1205,8 @@ finish_write:
 	send_more_port_data((struct edgeport_serial *)
 			usb_get_serial_data(port->serial), edge_port);
 
-	dbg("%s wrote %d byte(s) TxCredits %d, Fifo %d", __func__,
-				copySize, edge_port->txCredits, fifo->count);
+	dev_dbg(&port->dev, "%s wrote %d byte(s) TxCredits %d, Fifo %d\n",
+		__func__, copySize, edge_port->txCredits, fifo->count);
 
 	return copySize;
 }
@@ -1236,6 +1229,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 					struct edgeport_port *edge_port)
 {
 	struct TxFifo	*fifo = &edge_port->txfifo;
+	struct device	*dev = &edge_port->port->dev;
 	struct urb	*urb;
 	unsigned char	*buffer;
 	int		status;
@@ -1245,16 +1239,14 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	int		secondhalf;
 	unsigned long	flags;
 
-	dbg("%s(%d)", __func__, edge_port->port->number);
-
 	spin_lock_irqsave(&edge_port->ep_lock, flags);
 
 	if (edge_port->write_in_progress ||
 	    !edge_port->open             ||
 	    (fifo->count == 0)) {
-		dbg("%s(%d) EXIT - fifo %d, PendingWrite = %d",
-				__func__, edge_port->port->number,
-				fifo->count, edge_port->write_in_progress);
+		dev_dbg(dev, "%s(%d) EXIT - fifo %d, PendingWrite = %d\n",
+			__func__, edge_port->port->number,
+			fifo->count, edge_port->write_in_progress);
 		goto exit_send;
 	}
 
@@ -1266,7 +1258,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	 * it's better to wait for more credits so we can do a larger write.
 	 */
 	if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits, EDGE_FW_BULK_MAX_PACKET_SIZE)) {
-		dbg("%s(%d) Not enough credit - fifo %d TxCredit %d",
+		dev_dbg(dev, "%s(%d) Not enough credit - fifo %d TxCredit %d\n",
 			__func__, edge_port->port->number, fifo->count,
 			edge_port->txCredits);
 		goto exit_send;
@@ -1315,8 +1307,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	}
 
 	if (count)
-		usb_serial_debug_data(debug, &edge_port->port->dev,
-						__func__, count, &buffer[2]);
+		usb_serial_debug_data(&edge_port->port->dev, __func__, count, &buffer[2]);
 
 	/* fill up the urb with all of our data and submit it */
 	usb_fill_bulk_urb(urb, edge_serial->serial->dev,
@@ -1341,8 +1332,8 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 		edge_port->txCredits += count;
 		edge_port->icount.tx -= count;
 	}
-	dbg("%s wrote %d byte(s) TxCredit %d, Fifo %d",
-			__func__, count, edge_port->txCredits, fifo->count);
+	dev_dbg(dev, "%s wrote %d byte(s) TxCredit %d, Fifo %d\n",
+		__func__, count, edge_port->txCredits, fifo->count);
 
 exit_send:
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
@@ -1363,17 +1354,13 @@ static int edge_write_room(struct tty_struct *tty)
 	int room;
 	unsigned long flags;
 
-	dbg("%s", __func__);
-
 	if (edge_port == NULL)
 		return 0;
 	if (edge_port->closePending)
 		return 0;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (!edge_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return 0;
 	}
 
@@ -1382,7 +1369,7 @@ static int edge_write_room(struct tty_struct *tty)
 	room = edge_port->txCredits - edge_port->txfifo.count;
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
 	return room;
 }
 
@@ -1403,15 +1390,13 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	int num_chars;
 	unsigned long flags;
 
-	dbg("%s", __func__);
-
 	if (edge_port == NULL)
 		return 0;
 	if (edge_port->closePending)
 		return 0;
 
 	if (!edge_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return 0;
 	}
 
@@ -1420,8 +1405,8 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 						edge_port->txfifo.count;
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 	if (num_chars) {
-		dbg("%s(port %d) - returns %d", __func__,
-						port->number, num_chars);
+		dev_dbg(&port->dev, "%s(port %d) - returns %d\n", __func__,
+			port->number, num_chars);
 	}
 
 	return num_chars;
@@ -1439,13 +1424,11 @@ static void edge_throttle(struct tty_struct *tty)
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	int status;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return;
 
 	if (!edge_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
@@ -1458,7 +1441,7 @@ static void edge_throttle(struct tty_struct *tty)
 	}
 
 	/* if we are implementing RTS/CTS, toggle that line */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		edge_port->shadowMCR &= ~MCR_RTS;
 		status = send_cmd_write_uart_register(edge_port, MCR,
 							edge_port->shadowMCR);
@@ -1479,13 +1462,11 @@ static void edge_unthrottle(struct tty_struct *tty)
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	int status;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return;
 
 	if (!edge_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
@@ -1497,7 +1478,7 @@ static void edge_unthrottle(struct tty_struct *tty)
 			return;
 	}
 	/* if we are implementing RTS/CTS, toggle that line */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		edge_port->shadowMCR |= MCR_RTS;
 		send_cmd_write_uart_register(edge_port, MCR,
 						edge_port->shadowMCR);
@@ -1516,19 +1497,15 @@ static void edge_set_termios(struct tty_struct *tty,
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	unsigned int cflag;
 
-	cflag = tty->termios->c_cflag;
-	dbg("%s - clfag %08x iflag %08x", __func__,
-	    tty->termios->c_cflag, tty->termios->c_iflag);
-	dbg("%s - old clfag %08x old iflag %08x", __func__,
-	    old_termios->c_cflag, old_termios->c_iflag);
-
-	dbg("%s - port %d", __func__, port->number);
+	cflag = tty->termios.c_cflag;
+	dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, tty->termios.c_cflag, tty->termios.c_iflag);
+	dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, old_termios->c_cflag, old_termios->c_iflag);
 
 	if (edge_port == NULL)
 		return;
 
 	if (!edge_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
@@ -1556,7 +1533,7 @@ static int get_lsr_info(struct edgeport_port *edge_port,
 	spin_lock_irqsave(&edge_port->ep_lock, flags);
 	if (edge_port->maxTxCredits == edge_port->txCredits &&
 	    edge_port->txfifo.count == 0) {
-		dbg("%s -- Empty", __func__);
+		dev_dbg(&edge_port->port->dev, "%s -- Empty\n", __func__);
 		result = TIOCSER_TEMT;
 	}
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
@@ -1573,8 +1550,6 @@ static int edge_tiocmset(struct tty_struct *tty,
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	unsigned int mcr;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	mcr = edge_port->shadowMCR;
 	if (set & TIOCM_RTS)
 		mcr |= MCR_RTS;
@@ -1605,8 +1580,6 @@ static int edge_tiocmget(struct tty_struct *tty)
 	unsigned int msr;
 	unsigned int mcr;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	msr = edge_port->shadowMSR;
 	mcr = edge_port->shadowMCR;
 	result = ((mcr & MCR_DTR)	? TIOCM_DTR: 0)	  /* 0x002 */
@@ -1616,9 +1589,6 @@ static int edge_tiocmget(struct tty_struct *tty)
 		  | ((msr & EDGEPORT_MSR_RI)	? TIOCM_RI:  0)   /* 0x080 */
 		  | ((msr & EDGEPORT_MSR_DSR)	? TIOCM_DSR: 0);  /* 0x100 */
 
-
-	dbg("%s -- %x", __func__, result);
-
 	return result;
 }
 
@@ -1642,8 +1612,8 @@ static int edge_get_icount(struct tty_struct *tty,
 	icount->brk = cnow.brk;
 	icount->buf_overrun = cnow.buf_overrun;
 
-	dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
-			__func__,  port->number, icount->rx, icount->tx);
+	dev_dbg(&port->dev, "%s (%d) TIOCGICOUNT RX=%d, TX=%d\n", __func__,
+		port->number, icount->rx, icount->tx);
 	return 0;
 }
 
@@ -1686,19 +1656,19 @@ static int edge_ioctl(struct tty_struct *tty,
 	struct async_icount cnow;
 	struct async_icount cprev;
 
-	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
 
 	switch (cmd) {
 	case TIOCSERGETLSR:
-		dbg("%s (%d) TIOCSERGETLSR", __func__,  port->number);
+		dev_dbg(&port->dev, "%s (%d) TIOCSERGETLSR\n", __func__,  port->number);
 		return get_lsr_info(edge_port, (unsigned int __user *) arg);
 
 	case TIOCGSERIAL:
-		dbg("%s (%d) TIOCGSERIAL", __func__,  port->number);
+		dev_dbg(&port->dev, "%s (%d) TIOCGSERIAL\n", __func__,  port->number);
 		return get_serial_info(edge_port, (struct serial_struct __user *) arg);
 
 	case TIOCMIWAIT:
-		dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
+		dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__,  port->number);
 		cprev = edge_port->icount;
 		while (1) {
 			prepare_to_wait(&edge_port->delta_msr_wait,
@@ -1745,7 +1715,7 @@ static void edge_break(struct tty_struct *tty, int break_state)
 		/* flush and chase */
 		edge_port->chaseResponsePending = true;
 
-		dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__);
+		dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CHASE_PORT\n", __func__);
 		status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
 		if (status == 0) {
 			/* block until chase finished */
@@ -1759,16 +1729,16 @@ static void edge_break(struct tty_struct *tty, int break_state)
 	    ((edge_serial->is_epic) &&
 	     (edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) {
 		if (break_state == -1) {
-			dbg("%s - Sending IOSP_CMD_SET_BREAK", __func__);
+			dev_dbg(&port->dev, "%s - Sending IOSP_CMD_SET_BREAK\n", __func__);
 			status = send_iosp_ext_cmd(edge_port,
 						IOSP_CMD_SET_BREAK, 0);
 		} else {
-			dbg("%s - Sending IOSP_CMD_CLEAR_BREAK", __func__);
+			dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CLEAR_BREAK\n", __func__);
 			status = send_iosp_ext_cmd(edge_port,
 						IOSP_CMD_CLEAR_BREAK, 0);
 		}
 		if (status)
-			dbg("%s - error sending break set/clear command.",
+			dev_dbg(&port->dev, "%s - error sending break set/clear command.\n",
 				__func__);
 	}
 }
@@ -1781,20 +1751,19 @@ static void edge_break(struct tty_struct *tty, int break_state)
 static void process_rcvd_data(struct edgeport_serial *edge_serial,
 				unsigned char *buffer, __u16 bufferLength)
 {
+	struct device *dev = &edge_serial->serial->dev->dev;
 	struct usb_serial_port *port;
 	struct edgeport_port *edge_port;
 	struct tty_struct *tty;
 	__u16 lastBufferLength;
 	__u16 rxLen;
 
-	dbg("%s", __func__);
-
 	lastBufferLength = bufferLength + 1;
 
 	while (bufferLength > 0) {
 		/* failsafe incase we get a message that we don't understand */
 		if (lastBufferLength == bufferLength) {
-			dbg("%s - stuck in loop, exiting it.", __func__);
+			dev_dbg(dev, "%s - stuck in loop, exiting it.\n", __func__);
 			break;
 		}
 		lastBufferLength = bufferLength;
@@ -1815,8 +1784,8 @@ static void process_rcvd_data(struct edgeport_serial *edge_serial,
 			++buffer;
 			--bufferLength;
 
-			dbg("%s - Hdr1=%02X Hdr2=%02X", __func__,
-			    edge_serial->rxHeader1, edge_serial->rxHeader2);
+			dev_dbg(dev, "%s - Hdr1=%02X Hdr2=%02X\n", __func__,
+				edge_serial->rxHeader1, edge_serial->rxHeader2);
 			/* Process depending on whether this header is
 			 * data or status */
 
@@ -1855,10 +1824,10 @@ static void process_rcvd_data(struct edgeport_serial *edge_serial,
 				    IOSP_GET_HDR_DATA_LEN(
 						edge_serial->rxHeader1,
 						edge_serial->rxHeader2);
-				dbg("%s - Data for Port %u Len %u",
-						__func__,
-						edge_serial->rxPort,
-						edge_serial->rxBytesRemaining);
+				dev_dbg(dev, "%s - Data for Port %u Len %u\n",
+					__func__,
+					edge_serial->rxPort,
+					edge_serial->rxBytesRemaining);
 
 				/* ASSERT(DevExt->RxPort < DevExt->NumPorts);
 				 * ASSERT(DevExt->RxBytesRemaining <
@@ -1896,7 +1865,7 @@ static void process_rcvd_data(struct edgeport_serial *edge_serial,
 					tty = tty_port_tty_get(
 						&edge_port->port->port);
 					if (tty) {
-						dbg("%s - Sending %d bytes to TTY for port %d",
+						dev_dbg(dev, "%s - Sending %d bytes to TTY for port %d\n",
 							__func__, rxLen, edge_serial->rxPort);
 						edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen);
 						tty_kref_put(tty);
@@ -1935,6 +1904,7 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 	struct usb_serial_port *port;
 	struct edgeport_port *edge_port;
 	struct tty_struct *tty;
+	struct device *dev;
 	__u8 code = edge_serial->rxStatusCode;
 
 	/* switch the port pointer to the one being currently talked about */
@@ -1946,16 +1916,15 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 					__func__, edge_serial->rxPort);
 		return;
 	}
-
-	dbg("%s - port %d", __func__, edge_serial->rxPort);
+	dev = &port->dev;
 
 	if (code == IOSP_EXT_STATUS) {
 		switch (byte2) {
 		case IOSP_EXT_STATUS_CHASE_RSP:
 			/* we want to do EXT status regardless of port
 			 * open/closed */
-			dbg("%s - Port %u EXT CHASE_RSP Data = %02x",
-					__func__, edge_serial->rxPort, byte3);
+			dev_dbg(dev, "%s - Port %u EXT CHASE_RSP Data = %02x\n",
+				__func__, edge_serial->rxPort, byte3);
 			/* Currently, the only EXT_STATUS is Chase, so process
 			 * here instead of one more call to one more subroutine
 			 * If/when more EXT_STATUS, there'll be more work to do
@@ -1970,7 +1939,8 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 			return;
 
 		case IOSP_EXT_STATUS_RX_CHECK_RSP:
-			dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============", __func__, edge_serial->rxPort, byte3);
+			dev_dbg(dev, "%s ========== Port %u CHECK_RSP Sequence = %02x =============\n",
+				__func__, edge_serial->rxPort, byte3);
 			/* Port->RxCheckRsp = true; */
 			return;
 		}
@@ -1979,7 +1949,8 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 	if (code == IOSP_STATUS_OPEN_RSP) {
 		edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3);
 		edge_port->maxTxCredits = edge_port->txCredits;
-		dbg("%s - Port %u Open Response Initial MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits);
+		dev_dbg(dev, "%s - Port %u Open Response Initial MSR = %02x TxBufferSize = %d\n",
+			__func__, edge_serial->rxPort, byte2, edge_port->txCredits);
 		handle_new_msr(edge_port, byte2);
 
 		/* send the current line settings to the port so we are
@@ -1987,7 +1958,7 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 		tty = tty_port_tty_get(&edge_port->port->port);
 		if (tty) {
 			change_port_settings(tty,
-				edge_port, tty->termios);
+				edge_port, &tty->termios);
 			tty_kref_put(tty);
 		}
 
@@ -2008,27 +1979,27 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 	switch (code) {
 	/* Not currently sent by Edgeport */
 	case IOSP_STATUS_LSR:
-		dbg("%s - Port %u LSR Status = %02x",
-					__func__, edge_serial->rxPort, byte2);
+		dev_dbg(dev, "%s - Port %u LSR Status = %02x\n",
+			__func__, edge_serial->rxPort, byte2);
 		handle_new_lsr(edge_port, false, byte2, 0);
 		break;
 
 	case IOSP_STATUS_LSR_DATA:
-		dbg("%s - Port %u LSR Status = %02x, Data = %02x",
-				__func__, edge_serial->rxPort, byte2, byte3);
+		dev_dbg(dev, "%s - Port %u LSR Status = %02x, Data = %02x\n",
+			__func__, edge_serial->rxPort, byte2, byte3);
 		/* byte2 is LSR Register */
 		/* byte3 is broken data byte */
 		handle_new_lsr(edge_port, true, byte2, byte3);
 		break;
 	/*
 	 *	case IOSP_EXT_4_STATUS:
-	 *		dbg("%s - Port %u LSR Status = %02x Data = %02x",
+	 *		dev_dbg(dev, "%s - Port %u LSR Status = %02x Data = %02x\n",
 	 *			__func__, edge_serial->rxPort, byte2, byte3);
 	 *		break;
 	 */
 	case IOSP_STATUS_MSR:
-		dbg("%s - Port %u MSR Status = %02x",
-					__func__, edge_serial->rxPort, byte2);
+		dev_dbg(dev, "%s - Port %u MSR Status = %02x\n",
+			__func__, edge_serial->rxPort, byte2);
 		/*
 		 * Process this new modem status and generate appropriate
 		 * events, etc, based on the new status. This routine
@@ -2038,7 +2009,7 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
 		break;
 
 	default:
-		dbg("%s - Unrecognized IOSP status code %u", __func__, code);
+		dev_dbg(dev, "%s - Unrecognized IOSP status code %u\n", __func__, code);
 		break;
 	}
 }
@@ -2073,8 +2044,6 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr)
 {
 	struct  async_icount *icount;
 
-	dbg("%s %02x", __func__, newMsr);
-
 	if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
 			EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
 		icount = &edge_port->icount;
@@ -2107,8 +2076,6 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
 		(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK));
 	struct async_icount *icount;
 
-	dbg("%s - %02x", __func__, newLsr);
-
 	edge_port->shadowLSR = lsr;
 
 	if (newLsr & LSR_BREAK) {
@@ -2156,7 +2123,7 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
 	__u16 current_length;
 	unsigned char *transfer_buffer;
 
-	dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
+	dev_dbg(&serial->dev->dev, "%s - %x, %x, %d\n", __func__, extAddr, addr, length);
 
 	transfer_buffer =  kmalloc(64, GFP_KERNEL);
 	if (!transfer_buffer) {
@@ -2173,8 +2140,7 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
 		else
 			current_length = length;
 
-/*		dbg("%s - writing %x, %x, %d", __func__,
-					extAddr, addr, current_length); */
+/*		dev_dbg(&serial->dev->dev, "%s - writing %x, %x, %d\n", __func__, extAddr, addr, current_length); */
 		memcpy(transfer_buffer, data, current_length);
 		result = usb_control_msg(serial->dev,
 					usb_sndctrlpipe(serial->dev, 0),
@@ -2207,8 +2173,6 @@ static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
 	__u16 current_length;
 	unsigned char *transfer_buffer;
 
-/*	dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); */
-
 	transfer_buffer =  kmalloc(64, GFP_KERNEL);
 	if (!transfer_buffer) {
 		dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
@@ -2223,8 +2187,6 @@ static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
 			current_length = 64;
 		else
 			current_length = length;
-/*		dbg("%s - writing %x, %x, %d", __func__,
-					extAddr, addr, current_length); */
 		memcpy(transfer_buffer, data, current_length);
 		result = usb_control_msg(serial->dev,
 					usb_sndctrlpipe(serial->dev, 0),
@@ -2257,8 +2219,6 @@ static int rom_read(struct usb_serial *serial, __u16 extAddr,
 	__u16 current_length;
 	unsigned char *transfer_buffer;
 
-	dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
-
 	transfer_buffer =  kmalloc(64, GFP_KERNEL);
 	if (!transfer_buffer) {
 		dev_err(&serial->dev->dev,
@@ -2273,8 +2233,6 @@ static int rom_read(struct usb_serial *serial, __u16 extAddr,
 			current_length = 64;
 		else
 			current_length = length;
-/*		dbg("%s - %x, %x, %d", __func__,
-				extAddr, addr, current_length); */
 		result = usb_control_msg(serial->dev,
 					usb_rcvctrlpipe(serial->dev, 0),
 					USB_REQUEST_ION_READ_ROM,
@@ -2305,8 +2263,6 @@ static int send_iosp_ext_cmd(struct edgeport_port *edge_port,
 	int             length = 0;
 	int             status = 0;
 
-	dbg("%s - %d, %d", __func__, command, param);
-
 	buffer = kmalloc(10, GFP_ATOMIC);
 	if (!buffer) {
 		dev_err(&edge_port->port->dev,
@@ -2339,11 +2295,11 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
 {
 	struct edgeport_serial *edge_serial =
 				usb_get_serial_data(edge_port->port->serial);
+	struct device *dev = &edge_port->port->dev;
 	int status = 0;
 	struct urb *urb;
 
-	usb_serial_debug_data(debug, &edge_port->port->dev,
-						__func__, length, buffer);
+	usb_serial_debug_data(dev, __func__, length, buffer);
 
 	/* Allocate our next urb */
 	urb = usb_alloc_urb(0, GFP_ATOMIC);
@@ -2351,8 +2307,8 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
 		return -ENOMEM;
 
 	atomic_inc(&CmdUrbs);
-	dbg("%s - ALLOCATE URB %p (outstanding %d)",
-				__func__, urb, atomic_read(&CmdUrbs));
+	dev_dbg(dev, "%s - ALLOCATE URB %p (outstanding %d)\n",
+		__func__, urb, atomic_read(&CmdUrbs));
 
 	usb_fill_bulk_urb(urb, edge_serial->serial->dev,
 			usb_sndbulkpipe(edge_serial->serial->dev,
@@ -2364,9 +2320,8 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
 
 	if (status) {
 		/* something went wrong */
-		dev_err(&edge_port->port->dev,
-		    "%s - usb_submit_urb(write command) failed, status = %d\n",
-							__func__, status);
+		dev_err(dev, "%s - usb_submit_urb(write command) failed, status = %d\n",
+			__func__, status);
 		usb_kill_urb(urb);
 		usb_free_urb(urb);
 		atomic_dec(&CmdUrbs);
@@ -2378,7 +2333,7 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
 
 	if (edge_port->commandPending) {
 		/* command timed out */
-		dbg("%s - command timed out", __func__);
+		dev_dbg(dev, "%s - command timed out\n", __func__);
 		status = -EINVAL;
 	}
 #endif
@@ -2396,6 +2351,7 @@ static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
 {
 	struct edgeport_serial *edge_serial =
 				usb_get_serial_data(edge_port->port->serial);
+	struct device *dev = &edge_port->port->dev;
 	unsigned char *cmdBuffer;
 	unsigned char *currCmd;
 	int cmdLen = 0;
@@ -2406,26 +2362,24 @@ static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
 
 	if (edge_serial->is_epic &&
 	    !edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) {
-		dbg("SendCmdWriteBaudRate - NOT Setting baud rate for port = %d, baud = %d",
-		    edge_port->port->number, baudRate);
+		dev_dbg(dev, "SendCmdWriteBaudRate - NOT Setting baud rate for port = %d, baud = %d\n",
+			edge_port->port->number, baudRate);
 		return 0;
 	}
 
-	dbg("%s - port = %d, baud = %d", __func__,
-					edge_port->port->number, baudRate);
+	dev_dbg(dev, "%s - port = %d, baud = %d\n", __func__,
+		edge_port->port->number, baudRate);
 
-	status = calc_baud_rate_divisor(baudRate, &divisor);
+	status = calc_baud_rate_divisor(dev, baudRate, &divisor);
 	if (status) {
-		dev_err(&edge_port->port->dev, "%s - bad baud rate\n",
-								__func__);
+		dev_err(dev, "%s - bad baud rate\n", __func__);
 		return status;
 	}
 
 	/* Alloc memory for the string of commands. */
 	cmdBuffer =  kmalloc(0x100, GFP_ATOMIC);
 	if (!cmdBuffer) {
-		dev_err(&edge_port->port->dev,
-			"%s - kmalloc(%d) failed.\n", __func__, 0x100);
+		dev_err(dev, "%s - kmalloc(%d) failed.\n", __func__, 0x100);
 		return -ENOMEM;
 	}
 	currCmd = cmdBuffer;
@@ -2456,14 +2410,11 @@ static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
  *	this function calculates the proper baud rate divisor for the specified
  *	baud rate.
  *****************************************************************************/
-static int calc_baud_rate_divisor(int baudrate, int *divisor)
+static int calc_baud_rate_divisor(struct device *dev, int baudrate, int *divisor)
 {
 	int i;
 	__u16 custom;
 
-
-	dbg("%s - %d", __func__, baudrate);
-
 	for (i = 0; i < ARRAY_SIZE(divisor_table); i++) {
 		if (divisor_table[i].BaudRate == baudrate) {
 			*divisor = divisor_table[i].Divisor;
@@ -2480,7 +2431,7 @@ static int calc_baud_rate_divisor(int baudrate, int *divisor)
 
 		*divisor = custom;
 
-		dbg("%s - Baud %d = %d", __func__, baudrate, custom);
+		dev_dbg(dev, "%s - Baud %d = %d\n", __func__, baudrate, custom);
 		return 0;
 	}
 
@@ -2497,25 +2448,26 @@ static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
 {
 	struct edgeport_serial *edge_serial =
 				usb_get_serial_data(edge_port->port->serial);
+	struct device *dev = &edge_port->port->dev;
 	unsigned char *cmdBuffer;
 	unsigned char *currCmd;
 	unsigned long cmdLen = 0;
 	int status;
 
-	dbg("%s - write to %s register 0x%02x",
-			(regNum == MCR) ? "MCR" : "LCR", __func__, regValue);
+	dev_dbg(dev, "%s - write to %s register 0x%02x\n",
+		(regNum == MCR) ? "MCR" : "LCR", __func__, regValue);
 
 	if (edge_serial->is_epic &&
 	    !edge_serial->epic_descriptor.Supports.IOSPWriteMCR &&
 	    regNum == MCR) {
-		dbg("SendCmdWriteUartReg - Not writing to MCR Register");
+		dev_dbg(dev, "SendCmdWriteUartReg - Not writing to MCR Register\n");
 		return 0;
 	}
 
 	if (edge_serial->is_epic &&
 	    !edge_serial->epic_descriptor.Supports.IOSPWriteLCR &&
 	    regNum == LCR) {
-		dbg("SendCmdWriteUartReg - Not writing to LCR Register");
+		dev_dbg(dev, "SendCmdWriteUartReg - Not writing to LCR Register\n");
 		return 0;
 	}
 
@@ -2550,6 +2502,7 @@ static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
 static void change_port_settings(struct tty_struct *tty,
 	struct edgeport_port *edge_port, struct ktermios *old_termios)
 {
+	struct device *dev = &edge_port->port->dev;
 	struct edgeport_serial *edge_serial =
 			usb_get_serial_data(edge_port->port->serial);
 	int baud;
@@ -2562,33 +2515,33 @@ static void change_port_settings(struct tty_struct *tty,
 	__u8 txFlow;
 	int status;
 
-	dbg("%s - port %d", __func__, edge_port->port->number);
+	dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number);
 
 	if (!edge_port->open &&
 	    !edge_port->openPending) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	switch (cflag & CSIZE) {
 	case CS5:
 		lData = LCR_BITS_5; mask = 0x1f;
-		dbg("%s - data bits = 5", __func__);
+		dev_dbg(dev, "%s - data bits = 5\n", __func__);
 		break;
 	case CS6:
 		lData = LCR_BITS_6; mask = 0x3f;
-		dbg("%s - data bits = 6", __func__);
+		dev_dbg(dev, "%s - data bits = 6\n", __func__);
 		break;
 	case CS7:
 		lData = LCR_BITS_7; mask = 0x7f;
-		dbg("%s - data bits = 7", __func__);
+		dev_dbg(dev, "%s - data bits = 7\n", __func__);
 		break;
 	default:
 	case CS8:
 		lData = LCR_BITS_8;
-		dbg("%s - data bits = 8", __func__);
+		dev_dbg(dev, "%s - data bits = 8\n", __func__);
 		break;
 	}
 
@@ -2597,28 +2550,28 @@ static void change_port_settings(struct tty_struct *tty,
 		if (cflag & CMSPAR) {
 			if (cflag & PARODD) {
 				lParity = LCR_PAR_MARK;
-				dbg("%s - parity = mark", __func__);
+				dev_dbg(dev, "%s - parity = mark\n", __func__);
 			} else {
 				lParity = LCR_PAR_SPACE;
-				dbg("%s - parity = space", __func__);
+				dev_dbg(dev, "%s - parity = space\n", __func__);
 			}
 		} else if (cflag & PARODD) {
 			lParity = LCR_PAR_ODD;
-			dbg("%s - parity = odd", __func__);
+			dev_dbg(dev, "%s - parity = odd\n", __func__);
 		} else {
 			lParity = LCR_PAR_EVEN;
-			dbg("%s - parity = even", __func__);
+			dev_dbg(dev, "%s - parity = even\n", __func__);
 		}
 	} else {
-		dbg("%s - parity = none", __func__);
+		dev_dbg(dev, "%s - parity = none\n", __func__);
 	}
 
 	if (cflag & CSTOPB) {
 		lStop = LCR_STOP_2;
-		dbg("%s - stop bits = 2", __func__);
+		dev_dbg(dev, "%s - stop bits = 2\n", __func__);
 	} else {
 		lStop = LCR_STOP_1;
-		dbg("%s - stop bits = 1", __func__);
+		dev_dbg(dev, "%s - stop bits = 1\n", __func__);
 	}
 
 	/* figure out the flow control settings */
@@ -2626,9 +2579,9 @@ static void change_port_settings(struct tty_struct *tty,
 	if (cflag & CRTSCTS) {
 		rxFlow |= IOSP_RX_FLOW_RTS;
 		txFlow |= IOSP_TX_FLOW_CTS;
-		dbg("%s - RTS/CTS is enabled", __func__);
+		dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
 	} else {
-		dbg("%s - RTS/CTS is disabled", __func__);
+		dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
 	}
 
 	/* if we are implementing XON/XOFF, set the start and stop character
@@ -2649,19 +2602,19 @@ static void change_port_settings(struct tty_struct *tty,
 		/* if we are implementing INBOUND XON/XOFF */
 		if (I_IXOFF(tty)) {
 			rxFlow |= IOSP_RX_FLOW_XON_XOFF;
-			dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
-					__func__, start_char, stop_char);
+			dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
+				__func__, start_char, stop_char);
 		} else {
-			dbg("%s - INBOUND XON/XOFF is disabled", __func__);
+			dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__);
 		}
 
 		/* if we are implementing OUTBOUND XON/XOFF */
 		if (I_IXON(tty)) {
 			txFlow |= IOSP_TX_FLOW_XON_XOFF;
-			dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
-					__func__, start_char, stop_char);
+			dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
+				__func__, start_char, stop_char);
 		} else {
-			dbg("%s - OUTBOUND XON/XOFF is disabled", __func__);
+			dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__);
 		}
 	}
 
@@ -2704,7 +2657,7 @@ static void change_port_settings(struct tty_struct *tty,
 		baud = 9600;
 	}
 
-	dbg("%s - baud rate = %d", __func__, baud);
+	dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud);
 	status = send_cmd_write_baud_rate(edge_port, baud);
 	if (status == -1) {
 		/* Speed change was not possible - put back the old speed */
@@ -2746,9 +2699,10 @@ static void unicode_to_ascii(char *string, int buflen,
  ****************************************************************************/
 static void get_manufacturing_desc(struct edgeport_serial *edge_serial)
 {
+	struct device *dev = &edge_serial->serial->dev->dev;
 	int response;
 
-	dbg("getting manufacturer descriptor");
+	dev_dbg(dev, "getting manufacturer descriptor\n");
 
 	response = rom_read(edge_serial->serial,
 				(EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16,
@@ -2757,42 +2711,41 @@ static void get_manufacturing_desc(struct edgeport_serial *edge_serial)
 				(__u8 *)(&edge_serial->manuf_descriptor));
 
 	if (response < 1)
-		dev_err(&edge_serial->serial->dev->dev,
-			"error in getting manufacturer descriptor\n");
+		dev_err(dev, "error in getting manufacturer descriptor\n");
 	else {
 		char string[30];
-		dbg("**Manufacturer Descriptor");
-		dbg("  RomSize:        %dK",
+		dev_dbg(dev, "**Manufacturer Descriptor\n");
+		dev_dbg(dev, "  RomSize:        %dK\n",
 			edge_serial->manuf_descriptor.RomSize);
-		dbg("  RamSize:        %dK",
+		dev_dbg(dev, "  RamSize:        %dK\n",
 			edge_serial->manuf_descriptor.RamSize);
-		dbg("  CpuRev:         %d",
+		dev_dbg(dev, "  CpuRev:         %d\n",
 			edge_serial->manuf_descriptor.CpuRev);
-		dbg("  BoardRev:       %d",
+		dev_dbg(dev, "  BoardRev:       %d\n",
 			edge_serial->manuf_descriptor.BoardRev);
-		dbg("  NumPorts:       %d",
+		dev_dbg(dev, "  NumPorts:       %d\n",
 			edge_serial->manuf_descriptor.NumPorts);
-		dbg("  DescDate:       %d/%d/%d",
+		dev_dbg(dev, "  DescDate:       %d/%d/%d\n",
 			edge_serial->manuf_descriptor.DescDate[0],
 			edge_serial->manuf_descriptor.DescDate[1],
 			edge_serial->manuf_descriptor.DescDate[2]+1900);
 		unicode_to_ascii(string, sizeof(string),
 			edge_serial->manuf_descriptor.SerialNumber,
 			edge_serial->manuf_descriptor.SerNumLength/2);
-		dbg("  SerialNumber: %s", string);
+		dev_dbg(dev, "  SerialNumber: %s\n", string);
 		unicode_to_ascii(string, sizeof(string),
 			edge_serial->manuf_descriptor.AssemblyNumber,
 			edge_serial->manuf_descriptor.AssemblyNumLength/2);
-		dbg("  AssemblyNumber: %s", string);
+		dev_dbg(dev, "  AssemblyNumber: %s\n", string);
 		unicode_to_ascii(string, sizeof(string),
 		    edge_serial->manuf_descriptor.OemAssyNumber,
 		    edge_serial->manuf_descriptor.OemAssyNumLength/2);
-		dbg("  OemAssyNumber:  %s", string);
-		dbg("  UartType:       %d",
+		dev_dbg(dev, "  OemAssyNumber:  %s\n", string);
+		dev_dbg(dev, "  UartType:       %d\n",
 			edge_serial->manuf_descriptor.UartType);
-		dbg("  IonPid:         %d",
+		dev_dbg(dev, "  IonPid:         %d\n",
 			edge_serial->manuf_descriptor.IonPid);
-		dbg("  IonConfig:      %d",
+		dev_dbg(dev, "  IonConfig:      %d\n",
 			edge_serial->manuf_descriptor.IonConfig);
 	}
 }
@@ -2805,9 +2758,10 @@ static void get_manufacturing_desc(struct edgeport_serial *edge_serial)
  ****************************************************************************/
 static void get_boot_desc(struct edgeport_serial *edge_serial)
 {
+	struct device *dev = &edge_serial->serial->dev->dev;
 	int response;
 
-	dbg("getting boot descriptor");
+	dev_dbg(dev, "getting boot descriptor\n");
 
 	response = rom_read(edge_serial->serial,
 				(EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16,
@@ -2816,23 +2770,22 @@ static void get_boot_desc(struct edgeport_serial *edge_serial)
 				(__u8 *)(&edge_serial->boot_descriptor));
 
 	if (response < 1)
-		dev_err(&edge_serial->serial->dev->dev,
-				"error in getting boot descriptor\n");
+		dev_err(dev, "error in getting boot descriptor\n");
 	else {
-		dbg("**Boot Descriptor:");
-		dbg("  BootCodeLength: %d",
-		    le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
-		dbg("  MajorVersion:   %d",
+		dev_dbg(dev, "**Boot Descriptor:\n");
+		dev_dbg(dev, "  BootCodeLength: %d\n",
+			le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
+		dev_dbg(dev, "  MajorVersion:   %d\n",
 			edge_serial->boot_descriptor.MajorVersion);
-		dbg("  MinorVersion:   %d",
+		dev_dbg(dev, "  MinorVersion:   %d\n",
 			edge_serial->boot_descriptor.MinorVersion);
-		dbg("  BuildNumber:    %d",
+		dev_dbg(dev, "  BuildNumber:    %d\n",
 			le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
-		dbg("  Capabilities:   0x%x",
+		dev_dbg(dev, "  Capabilities:   0x%x\n",
 		      le16_to_cpu(edge_serial->boot_descriptor.Capabilities));
-		dbg("  UConfig0:       %d",
+		dev_dbg(dev, "  UConfig0:       %d\n",
 			edge_serial->boot_descriptor.UConfig0);
-		dbg("  UConfig1:       %d",
+		dev_dbg(dev, "  UConfig1:       %d\n",
 			edge_serial->boot_descriptor.UConfig1);
 	}
 }
@@ -2844,6 +2797,7 @@ static void get_boot_desc(struct edgeport_serial *edge_serial)
  ****************************************************************************/
 static void load_application_firmware(struct edgeport_serial *edge_serial)
 {
+	struct device *dev = &edge_serial->serial->dev->dev;
 	const struct ihex_binrec *rec;
 	const struct firmware *fw;
 	const char *fw_name;
@@ -2864,7 +2818,7 @@ static void load_application_firmware(struct edgeport_serial *edge_serial)
 			break;
 
 		case EDGE_DOWNLOAD_FILE_NONE:
-			dbg("No download file specified, skipping download");
+			dev_dbg(dev, "No download file specified, skipping download\n");
 			return;
 
 		default:
@@ -2874,7 +2828,7 @@ static void load_application_firmware(struct edgeport_serial *edge_serial)
 	response = request_ihex_firmware(&fw, fw_name,
 				    &edge_serial->serial->dev->dev);
 	if (response) {
-		printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
+		dev_err(dev, "Failed to load image \"%s\" err %d\n",
 		       fw_name, response);
 		return;
 	}
@@ -2882,7 +2836,7 @@ static void load_application_firmware(struct edgeport_serial *edge_serial)
 	rec = (const struct ihex_binrec *)fw->data;
 	build = (rec->data[2] << 8) | rec->data[3];
 
-	dbg("%s %d.%d.%d", fw_info, rec->data[0], rec->data[1], build);
+	dev_dbg(dev, "%s %d.%d.%d\n", fw_info, rec->data[0], rec->data[1], build);
 
 	edge_serial->product_info.FirmwareMajorVersion = rec->data[0];
 	edge_serial->product_info.FirmwareMinorVersion = rec->data[1];
@@ -2905,10 +2859,10 @@ static void load_application_firmware(struct edgeport_serial *edge_serial)
 		}
 	}
 
-	dbg("sending exec_dl_code");
-	response = usb_control_msg (edge_serial->serial->dev, 
-				    usb_sndctrlpipe(edge_serial->serial->dev, 0), 
-				    USB_REQUEST_ION_EXEC_DL_CODE, 
+	dev_dbg(dev, "sending exec_dl_code\n");
+	response = usb_control_msg (edge_serial->serial->dev,
+				    usb_sndctrlpipe(edge_serial->serial->dev, 0),
+				    USB_REQUEST_ION_EXEC_DL_CODE,
 				    0x40, 0x4000, 0x0001, NULL, 0, 3000);
 
 	release_firmware(fw);
@@ -2923,6 +2877,7 @@ static int edge_startup(struct usb_serial *serial)
 	struct edgeport_serial *edge_serial;
 	struct edgeport_port *edge_port;
 	struct usb_device *dev;
+	struct device *ddev = &serial->dev->dev;
 	int i, j;
 	int response;
 	bool interrupt_in_found;
@@ -2974,32 +2929,31 @@ static int edge_startup(struct usb_serial *serial)
 	/* serial->num_ports = serial->product_info.NumPorts; */
 	if ((!edge_serial->is_epic) &&
 	    (edge_serial->product_info.NumPorts != serial->num_ports)) {
-		dev_warn(&serial->dev->dev, "Device Reported %d serial ports "
-			 "vs. core thinking we have %d ports, email "
-			 "greg@kroah.com this information.\n",
+		dev_warn(ddev,
+			"Device Reported %d serial ports vs. core thinking we have %d ports, email greg@kroah.com this information.\n",
 			 edge_serial->product_info.NumPorts,
 			 serial->num_ports);
 	}
 
-	dbg("%s - time 1 %ld", __func__, jiffies);
+	dev_dbg(ddev, "%s - time 1 %ld\n", __func__, jiffies);
 
 	/* If not an EPiC device */
 	if (!edge_serial->is_epic) {
 		/* now load the application firmware into this device */
 		load_application_firmware(edge_serial);
 
-		dbg("%s - time 2 %ld", __func__, jiffies);
+		dev_dbg(ddev, "%s - time 2 %ld\n", __func__, jiffies);
 
 		/* Check current Edgeport EEPROM and update if necessary */
 		update_edgeport_E2PROM(edge_serial);
 
-		dbg("%s - time 3 %ld", __func__, jiffies);
+		dev_dbg(ddev, "%s - time 3 %ld\n", __func__, jiffies);
 
 		/* set the configuration to use #1 */
-/*		dbg("set_configuration 1"); */
+/*		dev_dbg(ddev, "set_configuration 1\n"); */
 /*		usb_set_configuration (dev, 1); */
 	}
-	dbg("  FirmwareMajorVersion  %d.%d.%d",
+	dev_dbg(ddev, "  FirmwareMajorVersion  %d.%d.%d\n",
 	    edge_serial->product_info.FirmwareMajorVersion,
 	    edge_serial->product_info.FirmwareMinorVersion,
 	    le16_to_cpu(edge_serial->product_info.FirmwareBuildNumber));
@@ -3011,8 +2965,7 @@ static int edge_startup(struct usb_serial *serial)
 	for (i = 0; i < serial->num_ports; ++i) {
 		edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL);
 		if (edge_port == NULL) {
-			dev_err(&serial->dev->dev, "%s - Out of memory\n",
-								   __func__);
+			dev_err(ddev, "%s - Out of memory\n", __func__);
 			for (j = 0; j < i; ++j) {
 				kfree(usb_get_serial_port_data(serial->port[j]));
 				usb_set_serial_port_data(serial->port[j],
@@ -3044,19 +2997,19 @@ static int edge_startup(struct usb_serial *serial)
 			if (!interrupt_in_found &&
 			    (usb_endpoint_is_int_in(endpoint))) {
 				/* we found a interrupt in endpoint */
-				dbg("found interrupt in");
+				dev_dbg(ddev, "found interrupt in\n");
 
 				/* not set up yet, so do it now */
 				edge_serial->interrupt_read_urb =
 						usb_alloc_urb(0, GFP_KERNEL);
 				if (!edge_serial->interrupt_read_urb) {
-					dev_err(&dev->dev, "out of memory\n");
+					dev_err(ddev, "out of memory\n");
 					return -ENOMEM;
 				}
 				edge_serial->interrupt_in_buffer =
 					kmalloc(buffer_size, GFP_KERNEL);
 				if (!edge_serial->interrupt_in_buffer) {
-					dev_err(&dev->dev, "out of memory\n");
+					dev_err(ddev, "out of memory\n");
 					usb_free_urb(edge_serial->interrupt_read_urb);
 					return -ENOMEM;
 				}
@@ -3081,13 +3034,13 @@ static int edge_startup(struct usb_serial *serial)
 			if (!bulk_in_found &&
 				(usb_endpoint_is_bulk_in(endpoint))) {
 				/* we found a bulk in endpoint */
-				dbg("found bulk in");
+				dev_dbg(ddev, "found bulk in\n");
 
 				/* not set up yet, so do it now */
 				edge_serial->read_urb =
 						usb_alloc_urb(0, GFP_KERNEL);
 				if (!edge_serial->read_urb) {
-					dev_err(&dev->dev, "out of memory\n");
+					dev_err(ddev, "out of memory\n");
 					return -ENOMEM;
 				}
 				edge_serial->bulk_in_buffer =
@@ -3114,7 +3067,7 @@ static int edge_startup(struct usb_serial *serial)
 			if (!bulk_out_found &&
 			    (usb_endpoint_is_bulk_out(endpoint))) {
 				/* we found a bulk out endpoint */
-				dbg("found bulk out");
+				dev_dbg(ddev, "found bulk out\n");
 				edge_serial->bulk_out_endpoint =
 						endpoint->bEndpointAddress;
 				bulk_out_found = true;
@@ -3122,8 +3075,7 @@ static int edge_startup(struct usb_serial *serial)
 		}
 
 		if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) {
-			dev_err(&dev->dev, "Error - the proper endpoints "
-				"were not found!\n");
+			dev_err(ddev, "Error - the proper endpoints were not found!\n");
 			return -ENODEV;
 		}
 
@@ -3132,8 +3084,7 @@ static int edge_startup(struct usb_serial *serial)
 		response = usb_submit_urb(edge_serial->interrupt_read_urb,
 								GFP_KERNEL);
 		if (response)
-			dev_err(&dev->dev,
-				"%s - Error %d submitting control urb\n",
+			dev_err(ddev, "%s - Error %d submitting control urb\n",
 				__func__, response);
 	}
 	return response;
@@ -3148,8 +3099,6 @@ static void edge_disconnect(struct usb_serial *serial)
 {
 	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
 
-	dbg("%s", __func__);
-
 	/* stop reads and writes on all ports */
 	/* free up our endpoint stuff */
 	if (edge_serial->is_epic) {
@@ -3173,8 +3122,6 @@ static void edge_release(struct usb_serial *serial)
 	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
 	int i;
 
-	dbg("%s", __func__);
-
 	for (i = 0; i < serial->num_ports; ++i)
 		kfree(usb_get_serial_port_data(serial->port[i]));
 
@@ -3190,6 +3137,3 @@ MODULE_FIRMWARE("edgeport/boot.fw");
 MODULE_FIRMWARE("edgeport/boot2.fw");
 MODULE_FIRMWARE("edgeport/down.fw");
 MODULE_FIRMWARE("edgeport/down2.fw");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 3936904c641..a2209cd4509 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -201,8 +201,6 @@ static unsigned char OperationalMajorVersion;
 static unsigned char OperationalMinorVersion;
 static unsigned short OperationalBuildNumber;
 
-static bool debug;
-
 static int closing_wait = EDGE_CLOSING_WAIT;
 static bool ignore_cpu_rev;
 static int default_uart_mode;		/* RS232 */
@@ -233,8 +231,8 @@ static int ti_vread_sync(struct usb_device *dev, __u8 request,
 	if (status < 0)
 		return status;
 	if (status != size) {
-		dbg("%s - wanted to write %d, but only wrote %d",
-					     __func__, size, status);
+		dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
+			__func__, size, status);
 		return -ECOMM;
 	}
 	return 0;
@@ -251,8 +249,8 @@ static int ti_vsend_sync(struct usb_device *dev, __u8 request,
 	if (status < 0)
 		return status;
 	if (status != size) {
-		dbg("%s - wanted to write %d, but only wrote %d",
-		     __func__, size, status);
+		dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
+			__func__, size, status);
 		return -ECOMM;
 	}
 	return 0;
@@ -270,7 +268,7 @@ static int purge_port(struct usb_serial_port *port, __u16 mask)
 {
 	int port_number = port->number - port->serial->minor;
 
-	dbg("%s - port %d, mask %x", __func__, port_number, mask);
+	dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask);
 
 	return send_cmd(port->serial->dev,
 					UMPC_PURGE_PORT,
@@ -295,7 +293,7 @@ static int read_download_mem(struct usb_device *dev, int start_address,
 	__u8 read_length;
 	__be16 be_start_address;
 
-	dbg("%s - @ %x for %d", __func__, start_address, length);
+	dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length);
 
 	/* Read in blocks of 64 bytes
 	 * (TI firmware can't handle more than 64 byte reads)
@@ -307,8 +305,7 @@ static int read_download_mem(struct usb_device *dev, int start_address,
 			read_length = (__u8)length;
 
 		if (read_length > 1) {
-			dbg("%s - @ %x for %d", __func__,
-			     start_address, read_length);
+			dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length);
 		}
 		be_start_address = cpu_to_be16(start_address);
 		status = ti_vread_sync(dev, UMPC_MEMORY_READ,
@@ -317,13 +314,12 @@ static int read_download_mem(struct usb_device *dev, int start_address,
 					buffer, read_length);
 
 		if (status) {
-			dbg("%s - ERROR %x", __func__, status);
+			dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status);
 			return status;
 		}
 
 		if (read_length > 1)
-			usb_serial_debug_data(debug, &dev->dev, __func__,
-					      read_length, buffer);
+			usb_serial_debug_data(&dev->dev, __func__, read_length, buffer);
 
 		/* Update pointers/length */
 		start_address += read_length;
@@ -353,15 +349,14 @@ static int read_boot_mem(struct edgeport_serial *serial,
 				UMPC_MEMORY_READ, serial->TI_I2C_Type,
 				(__u16)(start_address+i), &buffer[i], 0x01);
 		if (status) {
-			dbg("%s - ERROR %x", __func__, status);
+			dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status);
 			return status;
 		}
 	}
 
-	dbg("%s - start_address = %x, length = %d",
-					__func__, start_address, length);
-	usb_serial_debug_data(debug, &serial->serial->dev->dev,
-					__func__, length, buffer);
+	dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n",
+		__func__, start_address, length);
+	usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
 
 	serial->TiReadI2C = 1;
 
@@ -398,10 +393,8 @@ static int write_boot_mem(struct edgeport_serial *serial,
 			return status;
 	}
 
-	dbg("%s - start_sddr = %x, length = %d",
-					__func__, start_address, length);
-	usb_serial_debug_data(debug, &serial->serial->dev->dev,
-					__func__, length, buffer);
+	dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length);
+	usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
 
 	return status;
 }
@@ -411,6 +404,7 @@ static int write_boot_mem(struct edgeport_serial *serial,
 static int write_i2c_mem(struct edgeport_serial *serial,
 		int start_address, int length, __u8 address_type, __u8 *buffer)
 {
+	struct device *dev = &serial->serial->dev->dev;
 	int status = 0;
 	int write_length;
 	__be16 be_start_address;
@@ -424,10 +418,9 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 	if (write_length > length)
 		write_length = length;
 
-	dbg("%s - BytesInFirstPage Addr = %x, length = %d",
-					__func__, start_address, write_length);
-	usb_serial_debug_data(debug, &serial->serial->dev->dev,
-						__func__, write_length, buffer);
+	dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n",
+		__func__, start_address, write_length);
+	usb_serial_debug_data(dev, __func__, write_length, buffer);
 
 	/* Write first page */
 	be_start_address = cpu_to_be16(start_address);
@@ -436,7 +429,7 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 				(__force __u16)be_start_address,
 				buffer,	write_length);
 	if (status) {
-		dbg("%s - ERROR %d", __func__, status);
+		dev_dbg(dev, "%s - ERROR %d\n", __func__, status);
 		return status;
 	}
 
@@ -452,10 +445,9 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 		else
 			write_length = length;
 
-		dbg("%s - Page Write Addr = %x, length = %d",
-					__func__, start_address, write_length);
-		usb_serial_debug_data(debug, &serial->serial->dev->dev,
-					__func__, write_length, buffer);
+		dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n",
+			__func__, start_address, write_length);
+		usb_serial_debug_data(dev, __func__, write_length, buffer);
 
 		/* Write next page */
 		be_start_address = cpu_to_be16(start_address);
@@ -464,8 +456,7 @@ static int write_i2c_mem(struct edgeport_serial *serial,
 				(__force __u16)be_start_address,
 				buffer, write_length);
 		if (status) {
-			dev_err(&serial->serial->dev->dev, "%s - ERROR %d\n",
-					__func__, status);
+			dev_err(dev, "%s - ERROR %d\n", __func__, status);
 			return status;
 		}
 
@@ -508,7 +499,7 @@ static int tx_active(struct edgeport_port *port)
 	if (status)
 		goto exit_is_tx_active;
 
-	dbg("%s - XByteCount    0x%X", __func__, oedb->XByteCount);
+	dev_dbg(&port->port->dev, "%s - XByteCount    0x%X\n", __func__, oedb->XByteCount);
 
 	/* and the LSR */
 	status = read_ram(port->port->serial->dev,
@@ -516,7 +507,7 @@ static int tx_active(struct edgeport_port *port)
 
 	if (status)
 		goto exit_is_tx_active;
-	dbg("%s - LSR = 0x%X", __func__, *lsr);
+	dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr);
 
 	/* If either buffer has data or we are transmitting then return TRUE */
 	if ((oedb->XByteCount & 0x80) != 0)
@@ -527,7 +518,7 @@ static int tx_active(struct edgeport_port *port)
 
 	/* We return Not Active if we get any kind of error */
 exit_is_tx_active:
-	dbg("%s - return %d", __func__, bytes_left);
+	dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left);
 
 	kfree(lsr);
 	kfree(oedb);
@@ -599,14 +590,13 @@ static int choose_config(struct usb_device *dev)
 	 * configuration # 1, which is Config Descriptor 0.
 	 */
 
-	dbg("%s - Number of Interfaces = %d",
-				__func__, dev->config->desc.bNumInterfaces);
-	dbg("%s - MAX Power            = %d",
-				__func__, dev->config->desc.bMaxPower * 2);
+	dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n",
+		__func__, dev->config->desc.bNumInterfaces);
+	dev_dbg(&dev->dev, "%s - MAX Power            = %d\n",
+		__func__, dev->config->desc.bMaxPower * 2);
 
 	if (dev->config->desc.bNumInterfaces != 1) {
-		dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n",
-								__func__);
+		dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__);
 		return -ENODEV;
 	}
 
@@ -684,7 +674,7 @@ static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer)
 		cs = (__u8)(cs + buffer[i]);
 
 	if (cs != rom_desc->CheckSum) {
-		dbg("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs);
+		pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs);
 		return -EINVAL;
 	}
 	return 0;
@@ -736,11 +726,11 @@ static int check_i2c_image(struct edgeport_serial *serial)
 		if ((start_address + sizeof(struct ti_i2c_desc) +
 					rom_desc->Size) > TI_MAX_I2C_SIZE) {
 			status = -ENODEV;
-			dbg("%s - structure too big, erroring out.", __func__);
+			dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__);
 			break;
 		}
 
-		dbg("%s Type = 0x%x", __func__, rom_desc->Type);
+		dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type);
 
 		/* Skip type 2 record */
 		ttype = rom_desc->Type & 0x0f;
@@ -779,18 +769,18 @@ static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer)
 	int start_address;
 	struct ti_i2c_desc *rom_desc;
 	struct edge_ti_manuf_descriptor *desc;
+	struct device *dev = &serial->serial->dev->dev;
 
 	rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
 	if (!rom_desc) {
-		dev_err(&serial->serial->dev->dev, "%s - out of memory\n",
-								__func__);
+		dev_err(dev, "%s - out of memory\n", __func__);
 		return -ENOMEM;
 	}
 	start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION,
 								rom_desc);
 
 	if (!start_address) {
-		dbg("%s - Edge Descriptor not found in I2C", __func__);
+		dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__);
 		status = -ENODEV;
 		goto exit;
 	}
@@ -804,12 +794,12 @@ static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer)
 	status = valid_csum(rom_desc, buffer);
 
 	desc = (struct edge_ti_manuf_descriptor *)buffer;
-	dbg("%s - IonConfig      0x%x", __func__, desc->IonConfig);
-	dbg("%s - Version          %d", __func__, desc->Version);
-	dbg("%s - Cpu/Board      0x%x", __func__, desc->CpuRev_BoardRev);
-	dbg("%s - NumPorts         %d", __func__, desc->NumPorts);
-	dbg("%s - NumVirtualPorts  %d", __func__, desc->NumVirtualPorts);
-	dbg("%s - TotalPorts       %d", __func__, desc->TotalPorts);
+	dev_dbg(dev, "%s - IonConfig      0x%x\n", __func__, desc->IonConfig);
+	dev_dbg(dev, "%s - Version          %d\n", __func__, desc->Version);
+	dev_dbg(dev, "%s - Cpu/Board      0x%x\n", __func__, desc->CpuRev_BoardRev);
+	dev_dbg(dev, "%s - NumPorts         %d\n", __func__, desc->NumPorts);
+	dev_dbg(dev, "%s - NumVirtualPorts  %d\n", __func__, desc->NumVirtualPorts);
+	dev_dbg(dev, "%s - TotalPorts       %d\n", __func__, desc->TotalPorts);
 
 exit:
 	kfree(rom_desc);
@@ -855,8 +845,8 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
 
 	err = request_firmware(&fw, fw_name, dev);
 	if (err) {
-		printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
-		       fw_name, err);
+		dev_err(dev, "Failed to load image \"%s\" err %d\n",
+			fw_name, err);
 		kfree(buffer);
 		return err;
 	}
@@ -903,13 +893,13 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
 /* Try to figure out what type of I2c we have */
 static int i2c_type_bootmode(struct edgeport_serial *serial)
 {
+	struct device *dev = &serial->serial->dev->dev;
 	int status;
 	u8 *data;
 
 	data = kmalloc(1, GFP_KERNEL);
 	if (!data) {
-		dev_err(&serial->serial->dev->dev,
-				"%s - out of memory\n", __func__);
+		dev_err(dev, "%s - out of memory\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -917,11 +907,11 @@ static int i2c_type_bootmode(struct edgeport_serial *serial)
 	status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
 				DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01);
 	if (status)
-		dbg("%s - read 2 status error = %d", __func__, status);
+		dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status);
 	else
-		dbg("%s - read 2 data = 0x%x", __func__, *data);
+		dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
 	if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
-		dbg("%s - ROM_TYPE_II", __func__);
+		dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__);
 		serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
 		goto out;
 	}
@@ -930,16 +920,16 @@ static int i2c_type_bootmode(struct edgeport_serial *serial)
 	status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
 				DTK_ADDR_SPACE_I2C_TYPE_III, 0,	data, 0x01);
 	if (status)
-		dbg("%s - read 3 status error = %d", __func__, status);
+		dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status);
 	else
-		dbg("%s - read 2 data = 0x%x", __func__, *data);
+		dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
 	if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
-		dbg("%s - ROM_TYPE_III", __func__);
+		dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__);
 		serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III;
 		goto out;
 	}
 
-	dbg("%s - Unknown", __func__);
+	dev_dbg(dev, "%s - Unknown\n", __func__);
 	serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
 	status = -ENODEV;
 out:
@@ -1050,11 +1040,11 @@ static int download_fw(struct edgeport_serial *serial)
 	if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
 		struct ti_i2c_desc *rom_desc;
 
-		dbg("%s - RUNNING IN DOWNLOAD MODE", __func__);
+		dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
 
 		status = check_i2c_image(serial);
 		if (status) {
-			dbg("%s - DOWNLOAD MODE -- BAD I2C", __func__);
+			dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
 			return status;
 		}
 
@@ -1074,7 +1064,7 @@ static int download_fw(struct edgeport_serial *serial)
 
 		/* Check version number of ION descriptor */
 		if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
-			dbg("%s - Wrong CPU Rev %d (Must be 2)",
+			dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
 				__func__, ti_cpu_rev(ti_manuf_desc));
 			kfree(ti_manuf_desc);
 			return -EINVAL;
@@ -1094,8 +1084,7 @@ static int download_fw(struct edgeport_serial *serial)
 			struct ti_i2c_firmware_rec *firmware_version;
 			u8 *record;
 
-			dbg("%s - Found Type FIRMWARE (Type 2) record",
-								__func__);
+			dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__);
 
 			firmware_version = kmalloc(sizeof(*firmware_version),
 								GFP_KERNEL);
@@ -1127,22 +1116,21 @@ static int download_fw(struct edgeport_serial *serial)
 			download_new_ver = (OperationalMajorVersion << 8) +
 					   (OperationalMinorVersion);
 
-			dbg("%s - >> FW Versions Device %d.%d  Driver %d.%d",
-			    __func__,
-			    firmware_version->Ver_Major,
-			    firmware_version->Ver_Minor,
-			    OperationalMajorVersion,
-			    OperationalMinorVersion);
+			dev_dbg(dev, "%s - >> FW Versions Device %d.%d  Driver %d.%d\n",
+				__func__, firmware_version->Ver_Major,
+				firmware_version->Ver_Minor,
+				OperationalMajorVersion,
+				OperationalMinorVersion);
 
 			/* Check if we have an old version in the I2C and
 			   update if necessary */
 			if (download_cur_ver < download_new_ver) {
-				dbg("%s - Update I2C dld from %d.%d to %d.%d",
-				    __func__,
-				    firmware_version->Ver_Major,
-				    firmware_version->Ver_Minor,
-				    OperationalMajorVersion,
-				    OperationalMinorVersion);
+				dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
+					__func__,
+					firmware_version->Ver_Major,
+					firmware_version->Ver_Minor,
+					OperationalMajorVersion,
+					OperationalMinorVersion);
 
 				record = kmalloc(1, GFP_KERNEL);
 				if (!record) {
@@ -1196,9 +1184,7 @@ static int download_fw(struct edgeport_serial *serial)
 				}
 
 				if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
-					dev_err(dev,
-						"%s - error resetting device\n",
-						__func__);
+					dev_err(dev, "%s - error resetting device\n", __func__);
 					kfree(record);
 					kfree(firmware_version);
 					kfree(rom_desc);
@@ -1206,15 +1192,14 @@ static int download_fw(struct edgeport_serial *serial)
 					return -ENODEV;
 				}
 
-				dbg("%s - HARDWARE RESET", __func__);
+				dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
 
 				/* Reset UMP -- Back to BOOT MODE */
 				status = ti_vsend_sync(serial->serial->dev,
 						UMPC_HARDWARE_RESET,
 						0, 0, NULL, 0);
 
-				dbg("%s - HARDWARE RESET return %d",
-						__func__, status);
+				dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status);
 
 				/* return an error on purpose. */
 				kfree(record);
@@ -1249,8 +1234,7 @@ static int download_fw(struct edgeport_serial *serial)
 				return -ENOMEM;
 			}
 
-			dbg("%s - Found Type BLANK FIRMWARE (Type F2) record",
-								__func__);
+			dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__);
 
 			/*
 			 * In order to update the I2C firmware we must change
@@ -1292,7 +1276,7 @@ static int download_fw(struct edgeport_serial *serial)
 							HEADER_SIZE, vheader);
 
 			if (status) {
-				dbg("%s - can't read header back", __func__);
+				dev_dbg(dev, "%s - can't read header back\n", __func__);
 				kfree(vheader);
 				kfree(header);
 				kfree(rom_desc);
@@ -1300,8 +1284,7 @@ static int download_fw(struct edgeport_serial *serial)
 				return status;
 			}
 			if (memcmp(vheader, header, HEADER_SIZE)) {
-				dbg("%s - write download record failed",
-					__func__);
+				dev_dbg(dev, "%s - write download record failed\n", __func__);
 				kfree(vheader);
 				kfree(header);
 				kfree(rom_desc);
@@ -1312,13 +1295,13 @@ static int download_fw(struct edgeport_serial *serial)
 			kfree(vheader);
 			kfree(header);
 
-			dbg("%s - Start firmware update", __func__);
+			dev_dbg(dev, "%s - Start firmware update\n", __func__);
 
 			/* Tell firmware to copy download image into I2C */
 			status = ti_vsend_sync(serial->serial->dev,
 					UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0);
 
-		  	dbg("%s - Update complete 0x%x", __func__, status);
+		  	dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status);
 			if (status) {
 				dev_err(dev,
 					"%s - UMPC_COPY_DNLD_TO_I2C failed\n",
@@ -1338,7 +1321,7 @@ static int download_fw(struct edgeport_serial *serial)
 	/********************************************************************/
 	/* Boot Mode */
 	/********************************************************************/
-	dbg("%s - RUNNING IN BOOT MODE", __func__);
+	dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__);
 
 	/* Configure the TI device so we can use the BULK pipes for download */
 	status = config_boot_dev(serial->serial->dev);
@@ -1347,8 +1330,8 @@ static int download_fw(struct edgeport_serial *serial)
 
 	if (le16_to_cpu(serial->serial->dev->descriptor.idVendor)
 							!= USB_VENDOR_ID_ION) {
-		dbg("%s - VID = 0x%x", __func__,
-		     le16_to_cpu(serial->serial->dev->descriptor.idVendor));
+		dev_dbg(dev, "%s - VID = 0x%x\n", __func__,
+			le16_to_cpu(serial->serial->dev->descriptor.idVendor));
 		serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
 		goto stayinbootmode;
 	}
@@ -1385,8 +1368,8 @@ static int download_fw(struct edgeport_serial *serial)
 
 		/* Check for version 2 */
 		if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
-			dbg("%s - Wrong CPU Rev %d (Must be 2)",
-					__func__, ti_cpu_rev(ti_manuf_desc));
+			dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
+				__func__, ti_cpu_rev(ti_manuf_desc));
 			kfree(ti_manuf_desc);
 			goto stayinbootmode;
 		}
@@ -1421,8 +1404,8 @@ static int download_fw(struct edgeport_serial *serial)
 
 		err = request_firmware(&fw, fw_name, dev);
 		if (err) {
-			printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
-			       fw_name, err);
+			dev_err(dev, "Failed to load image \"%s\" err %d\n",
+				fw_name, err);
 			kfree(buffer);
 			return err;
 		}
@@ -1442,23 +1425,20 @@ static int download_fw(struct edgeport_serial *serial)
 		header->CheckSum = cs;
 
 		/* Download the operational code  */
-		dbg("%s - Downloading operational code image (TI UMP)",
-								__func__);
+		dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__);
 		status = download_code(serial, buffer, buffer_size);
 
 		kfree(buffer);
 
 		if (status) {
-			dbg("%s - Error downloading operational code image",
-								__func__);
+			dev_dbg(dev, "%s - Error downloading operational code image\n", __func__);
 			return status;
 		}
 
 		/* Device will reboot */
 		serial->product_info.TiMode = TI_MODE_TRANSITIONING;
 
-		dbg("%s - Download successful -- Device rebooting...",
-								__func__);
+		dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__);
 
 		/* return an error on purpose */
 		return -ENODEV;
@@ -1466,7 +1446,7 @@ static int download_fw(struct edgeport_serial *serial)
 
 stayinbootmode:
 	/* Eprom is invalid or blank stay in boot mode */
-	dbg("%s - STAYING IN BOOT MODE", __func__);
+	dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__);
 	serial->product_info.TiMode = TI_MODE_BOOT;
 
 	return 0;
@@ -1487,7 +1467,7 @@ static int restore_mcr(struct edgeport_port *port, __u8 mcr)
 {
 	int status = 0;
 
-	dbg("%s - %x", __func__, mcr);
+	dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr);
 
 	status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR);
 	if (status)
@@ -1524,7 +1504,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
 	struct async_icount *icount;
 	struct tty_struct *tty;
 
-	dbg("%s - %02x", __func__, msr);
+	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);
 
 	if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
 			EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
@@ -1566,7 +1546,7 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
 						LSR_FRM_ERR | LSR_BREAK));
 	struct tty_struct *tty;
 
-	dbg("%s - %02x", __func__, new_lsr);
+	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);
 
 	edge_port->shadow_lsr = lsr;
 
@@ -1604,6 +1584,7 @@ static void edge_interrupt_callback(struct urb *urb)
 	struct edgeport_serial *edge_serial = urb->context;
 	struct usb_serial_port *port;
 	struct edgeport_port *edge_port;
+	struct device *dev;
 	unsigned char *data = urb->transfer_buffer;
 	int length = urb->actual_length;
 	int port_number;
@@ -1613,8 +1594,6 @@ static void edge_interrupt_callback(struct urb *urb)
 	__u8 msr;
 	int status = urb->status;
 
-	dbg("%s", __func__);
-
 	switch (status) {
 	case 0:
 		/* success */
@@ -1623,7 +1602,7 @@ static void edge_interrupt_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
 		    __func__, status);
 		return;
 	default:
@@ -1633,27 +1612,26 @@ static void edge_interrupt_callback(struct urb *urb)
 	}
 
 	if (!length) {
-		dbg("%s - no data in urb", __func__);
+		dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__);
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
-						__func__, length, data);
+	dev = &edge_serial->serial->dev->dev;
+	usb_serial_debug_data(dev, __func__, length, data);
 
 	if (length != 2) {
-		dbg("%s - expecting packet of size 2, got %d",
-							__func__, length);
+		dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length);
 		goto exit;
 	}
 
 	port_number = TIUMP_GET_PORT_FROM_CODE(data[0]);
 	function    = TIUMP_GET_FUNC_FROM_CODE(data[0]);
-	dbg("%s - port_number %d, function %d, info 0x%x",
-	     __func__, port_number, function, data[1]);
+	dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__,
+		port_number, function, data[1]);
 	port = edge_serial->serial->port[port_number];
 	edge_port = usb_get_serial_port_data(port);
 	if (!edge_port) {
-		dbg("%s - edge_port not found", __func__);
+		dev_dbg(dev, "%s - edge_port not found\n", __func__);
 		return;
 	}
 	switch (function) {
@@ -1662,13 +1640,13 @@ static void edge_interrupt_callback(struct urb *urb)
 		if (lsr & UMP_UART_LSR_DATA_MASK) {
 			/* Save the LSR event for bulk read
 			   completion routine */
-			dbg("%s - LSR Event Port %u LSR Status = %02x",
-			     __func__, port_number, lsr);
+			dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n",
+				__func__, port_number, lsr);
 			edge_port->lsr_event = 1;
 			edge_port->lsr_mask = lsr;
 		} else {
-			dbg("%s - ===== Port %d LSR Status = %02x ======",
-			     __func__, port_number, lsr);
+			dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n",
+				__func__, port_number, lsr);
 			handle_new_lsr(edge_port, 0, lsr, 0);
 		}
 		break;
@@ -1676,8 +1654,8 @@ static void edge_interrupt_callback(struct urb *urb)
 	case TIUMP_INTERRUPT_CODE_MSR:	/* MSR */
 		/* Copy MSR from UMP */
 		msr = data[1];
-		dbg("%s - ===== Port %u MSR Status = %02x ======",
-		     __func__, port_number, msr);
+		dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n",
+			__func__, port_number, msr);
 		handle_new_msr(edge_port, msr);
 		break;
 
@@ -1700,14 +1678,13 @@ exit:
 static void edge_bulk_in_callback(struct urb *urb)
 {
 	struct edgeport_port *edge_port = urb->context;
+	struct device *dev = &edge_port->port->dev;
 	unsigned char *data = urb->transfer_buffer;
 	struct tty_struct *tty;
 	int retval = 0;
 	int port_number;
 	int status = urb->status;
 
-	dbg("%s", __func__);
-
 	switch (status) {
 	case 0:
 		/* success */
@@ -1716,13 +1693,10 @@ static void edge_bulk_in_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
-		    __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
 		return;
 	default:
-		dev_err(&urb->dev->dev,
-			"%s - nonzero read bulk status received: %d\n",
-			     __func__, status);
+		dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status);
 	}
 
 	if (status == -EPIPE)
@@ -1737,8 +1711,8 @@ static void edge_bulk_in_callback(struct urb *urb)
 
 	if (edge_port->lsr_event) {
 		edge_port->lsr_event = 0;
-		dbg("%s ===== Port %u LSR Status = %02x, Data = %02x ======",
-		     __func__, port_number, edge_port->lsr_mask, *data);
+		dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
+			__func__, port_number, edge_port->lsr_mask, *data);
 		handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);
 		/* Adjust buffer length/pointer */
 		--urb->actual_length;
@@ -1747,14 +1721,12 @@ static void edge_bulk_in_callback(struct urb *urb)
 
 	tty = tty_port_tty_get(&edge_port->port->port);
 	if (tty && urb->actual_length) {
-		usb_serial_debug_data(debug, &edge_port->port->dev,
-					__func__, urb->actual_length, data);
+		usb_serial_debug_data(dev, __func__, urb->actual_length, data);
 		if (edge_port->close_pending)
-			dbg("%s - close pending, dropping data on the floor",
+			dev_dbg(dev, "%s - close pending, dropping data on the floor\n",
 								__func__);
 		else
-			edge_tty_recv(&edge_port->port->dev, tty, data,
-							urb->actual_length);
+			edge_tty_recv(dev, tty, data, urb->actual_length);
 		edge_port->icount.rx += urb->actual_length;
 	}
 	tty_kref_put(tty);
@@ -1769,9 +1741,7 @@ exit:
 
 	spin_unlock(&edge_port->ep_lock);
 	if (retval)
-		dev_err(&urb->dev->dev,
-			"%s - usb_submit_urb failed with result %d\n",
-			 __func__, retval);
+		dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval);
 }
 
 static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
@@ -1793,8 +1763,6 @@ static void edge_bulk_out_callback(struct urb *urb)
 	int status = urb->status;
 	struct tty_struct *tty;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	edge_port->ep_write_urb_in_use = 0;
 
 	switch (status) {
@@ -1805,7 +1773,7 @@ static void edge_bulk_out_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
 		    __func__, status);
 		return;
 	default:
@@ -1830,8 +1798,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 	u16 open_settings;
 	u8 transaction_timeout;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return -ENODEV;
 
@@ -1850,9 +1816,8 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 		return -ENODEV;
 	}
 
-	dbg("%s - port_number = %d, uart_base = %04x, dma_address = %04x",
-				__func__, port_number, edge_port->uart_base,
-				edge_port->dma_address);
+	dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n",
+		__func__, port_number, edge_port->uart_base, edge_port->dma_address);
 
 	dev = port->serial->dev;
 
@@ -1870,7 +1835,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* set up the port settings */
 	if (tty)
-		edge_set_termios(tty, port, tty->termios);
+		edge_set_termios(tty, port, &tty->termios);
 
 	/* open up the port */
 
@@ -1885,7 +1850,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 			     UMP_PIPE_TRANS_TIMEOUT_ENA |
 			     (transaction_timeout << 2));
 
-	dbg("%s - Sending UMPC_OPEN_PORT", __func__);
+	dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__);
 
 	/* Tell TI to open and start the port */
 	status = send_cmd(dev, UMPC_OPEN_PORT,
@@ -1924,11 +1889,11 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 		return status;
 	}
 
-	dbg("ShadowMSR 0x%X", edge_port->shadow_msr);
+	dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);
 
 	/* Set Initial MCR */
 	edge_port->shadow_mcr = MCR_RTS | MCR_DTR;
-	dbg("ShadowMCR 0x%X", edge_port->shadow_mcr);
+	dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);
 
 	edge_serial = edge_port->edge_serial;
 	if (mutex_lock_interruptible(&edge_serial->es_lock))
@@ -1980,8 +1945,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	++edge_serial->num_ports_open;
 
-	dbg("%s - exited", __func__);
-
 	goto release_es_lock;
 
 unlink_int_urb:
@@ -1999,8 +1962,6 @@ static void edge_close(struct usb_serial_port *port)
 	struct usb_serial *serial = port->serial;
 	int port_number;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	edge_serial = usb_get_serial_data(port->serial);
 	edge_port = usb_get_serial_port_data(port);
 	if (edge_serial == NULL || edge_port == NULL)
@@ -2019,7 +1980,7 @@ static void edge_close(struct usb_serial_port *port)
 
 	/* assuming we can still talk to the device,
 	 * send a close port command to it */
-	dbg("%s - send umpc_close_port", __func__);
+	dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__);
 	port_number = port->number - port->serial->minor;
 
 	mutex_lock(&serial->disc_mutex);
@@ -2042,8 +2003,6 @@ static void edge_close(struct usb_serial_port *port)
 	}
 	mutex_unlock(&edge_serial->es_lock);
 	edge_port->close_pending = 0;
-
-	dbg("%s - exited", __func__);
 }
 
 static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
@@ -2051,10 +2010,8 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
 {
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (count == 0) {
-		dbg("%s - write request of 0 bytes", __func__);
+		dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
 		return 0;
 	}
 
@@ -2077,9 +2034,6 @@ static void edge_send(struct tty_struct *tty)
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	unsigned long flags;
 
-
-	dbg("%s - port %d", __func__, port->number);
-
 	spin_lock_irqsave(&edge_port->ep_lock, flags);
 
 	if (edge_port->ep_write_urb_in_use) {
@@ -2100,8 +2054,7 @@ static void edge_send(struct tty_struct *tty)
 
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-				port->write_urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer);
 
 	/* set up our urb */
 	port->write_urb->transfer_buffer_length = count;
@@ -2130,8 +2083,6 @@ static int edge_write_room(struct tty_struct *tty)
 	int room = 0;
 	unsigned long flags;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return 0;
 	if (edge_port->close_pending == 1)
@@ -2141,7 +2092,7 @@ static int edge_write_room(struct tty_struct *tty)
 	room = kfifo_avail(&edge_port->write_fifo);
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
 	return room;
 }
 
@@ -2152,8 +2103,6 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	int chars = 0;
 	unsigned long flags;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return 0;
 	if (edge_port->close_pending == 1)
@@ -2163,7 +2112,7 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	chars = kfifo_len(&edge_port->write_fifo);
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-	dbg("%s - returns %d", __func__, chars);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 }
 
@@ -2173,8 +2122,6 @@ static void edge_throttle(struct tty_struct *tty)
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	int status;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return;
 
@@ -2200,8 +2147,6 @@ static void edge_unthrottle(struct tty_struct *tty)
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	int status;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (edge_port == NULL)
 		return;
 
@@ -2261,6 +2206,7 @@ static int restart_read(struct edgeport_port *edge_port)
 static void change_port_settings(struct tty_struct *tty,
 		struct edgeport_port *edge_port, struct ktermios *old_termios)
 {
+	struct device *dev = &edge_port->port->dev;
 	struct ump_uart_config *config;
 	int baud;
 	unsigned cflag;
@@ -2268,17 +2214,16 @@ static void change_port_settings(struct tty_struct *tty,
 	int port_number = edge_port->port->number -
 					edge_port->port->serial->minor;
 
-	dbg("%s - port %d", __func__, edge_port->port->number);
+	dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number);
 
 	config = kmalloc (sizeof (*config), GFP_KERNEL);
 	if (!config) {
-		*tty->termios = *old_termios;
-		dev_err(&edge_port->port->dev, "%s - out of memory\n",
-								__func__);
+		tty->termios = *old_termios;
+		dev_err(dev, "%s - out of memory\n", __func__);
 		return;
 	}
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	config->wFlags = 0;
 
@@ -2290,20 +2235,20 @@ static void change_port_settings(struct tty_struct *tty,
 	switch (cflag & CSIZE) {
 	case CS5:
 		    config->bDataBits = UMP_UART_CHAR5BITS;
-		    dbg("%s - data bits = 5", __func__);
+		    dev_dbg(dev, "%s - data bits = 5\n", __func__);
 		    break;
 	case CS6:
 		    config->bDataBits = UMP_UART_CHAR6BITS;
-		    dbg("%s - data bits = 6", __func__);
+		    dev_dbg(dev, "%s - data bits = 6\n", __func__);
 		    break;
 	case CS7:
 		    config->bDataBits = UMP_UART_CHAR7BITS;
-		    dbg("%s - data bits = 7", __func__);
+		    dev_dbg(dev, "%s - data bits = 7\n", __func__);
 		    break;
 	default:
 	case CS8:
 		    config->bDataBits = UMP_UART_CHAR8BITS;
-		    dbg("%s - data bits = 8", __func__);
+		    dev_dbg(dev, "%s - data bits = 8\n", __func__);
 			    break;
 	}
 
@@ -2311,32 +2256,32 @@ static void change_port_settings(struct tty_struct *tty,
 		if (cflag & PARODD) {
 			config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
 			config->bParity = UMP_UART_ODDPARITY;
-			dbg("%s - parity = odd", __func__);
+			dev_dbg(dev, "%s - parity = odd\n", __func__);
 		} else {
 			config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
 			config->bParity = UMP_UART_EVENPARITY;
-			dbg("%s - parity = even", __func__);
+			dev_dbg(dev, "%s - parity = even\n", __func__);
 		}
 	} else {
 		config->bParity = UMP_UART_NOPARITY;
-		dbg("%s - parity = none", __func__);
+		dev_dbg(dev, "%s - parity = none\n", __func__);
 	}
 
 	if (cflag & CSTOPB) {
 		config->bStopBits = UMP_UART_STOPBIT2;
-		dbg("%s - stop bits = 2", __func__);
+		dev_dbg(dev, "%s - stop bits = 2\n", __func__);
 	} else {
 		config->bStopBits = UMP_UART_STOPBIT1;
-		dbg("%s - stop bits = 1", __func__);
+		dev_dbg(dev, "%s - stop bits = 1\n", __func__);
 	}
 
 	/* figure out the flow control settings */
 	if (cflag & CRTSCTS) {
 		config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW;
 		config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW;
-		dbg("%s - RTS/CTS is enabled", __func__);
+		dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
 	} else {
-		dbg("%s - RTS/CTS is disabled", __func__);
+		dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
 		tty->hw_stopped = 0;
 		restart_read(edge_port);
 	}
@@ -2349,20 +2294,20 @@ static void change_port_settings(struct tty_struct *tty,
 	/* if we are implementing INBOUND XON/XOFF */
 	if (I_IXOFF(tty)) {
 		config->wFlags |= UMP_MASK_UART_FLAGS_IN_X;
-		dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
-		     __func__, config->cXon, config->cXoff);
+		dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
+			__func__, config->cXon, config->cXoff);
 	} else
-		dbg("%s - INBOUND XON/XOFF is disabled", __func__);
+		dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__);
 
 	/* if we are implementing OUTBOUND XON/XOFF */
 	if (I_IXON(tty)) {
 		config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X;
-		dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
-		     __func__, config->cXon, config->cXoff);
+		dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
+			__func__, config->cXon, config->cXoff);
 	} else
-		dbg("%s - OUTBOUND XON/XOFF is disabled", __func__);
+		dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__);
 
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 
 	/* Round the baud rate */
 	baud = tty_get_baud_rate(tty);
@@ -2377,17 +2322,16 @@ static void change_port_settings(struct tty_struct *tty,
 
 	/* FIXME: Recompute actual baud from divisor here */
 
-	dbg("%s - baud rate = %d, wBaudRate = %d", __func__, baud,
-							config->wBaudRate);
+	dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate);
 
-	dbg("wBaudRate:   %d", (int)(461550L / config->wBaudRate));
-	dbg("wFlags:    0x%x", config->wFlags);
-	dbg("bDataBits:   %d", config->bDataBits);
-	dbg("bParity:     %d", config->bParity);
-	dbg("bStopBits:   %d", config->bStopBits);
-	dbg("cXon:        %d", config->cXon);
-	dbg("cXoff:       %d", config->cXoff);
-	dbg("bUartMode:   %d", config->bUartMode);
+	dev_dbg(dev, "wBaudRate:   %d\n", (int)(461550L / config->wBaudRate));
+	dev_dbg(dev, "wFlags:    0x%x\n", config->wFlags);
+	dev_dbg(dev, "bDataBits:   %d\n", config->bDataBits);
+	dev_dbg(dev, "bParity:     %d\n", config->bParity);
+	dev_dbg(dev, "bStopBits:   %d\n", config->bStopBits);
+	dev_dbg(dev, "cXon:        %d\n", config->cXon);
+	dev_dbg(dev, "cXoff:       %d\n", config->cXoff);
+	dev_dbg(dev, "bUartMode:   %d\n", config->bUartMode);
 
 	/* move the word values into big endian mode */
 	cpu_to_be16s(&config->wFlags);
@@ -2397,8 +2341,8 @@ static void change_port_settings(struct tty_struct *tty,
 				(__u8)(UMPM_UART1_PORT + port_number),
 				0, (__u8 *)config, sizeof(*config));
 	if (status)
-		dbg("%s - error %d when trying to write config to device",
-		     __func__, status);
+		dev_dbg(dev, "%s - error %d when trying to write config to device\n",
+			__func__, status);
 	kfree(config);
 }
 
@@ -2408,13 +2352,13 @@ static void edge_set_termios(struct tty_struct *tty,
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	unsigned int cflag;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
-	dbg("%s - clfag %08x iflag %08x", __func__,
-	    tty->termios->c_cflag, tty->termios->c_iflag);
-	dbg("%s - old clfag %08x old iflag %08x", __func__,
-	    old_termios->c_cflag, old_termios->c_iflag);
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__,
+		tty->termios.c_cflag, tty->termios.c_iflag);
+	dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
+		old_termios->c_cflag, old_termios->c_iflag);
+	dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
 
 	if (edge_port == NULL)
 		return;
@@ -2430,8 +2374,6 @@ static int edge_tiocmset(struct tty_struct *tty,
 	unsigned int mcr;
 	unsigned long flags;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	spin_lock_irqsave(&edge_port->ep_lock, flags);
 	mcr = edge_port->shadow_mcr;
 	if (set & TIOCM_RTS)
@@ -2464,8 +2406,6 @@ static int edge_tiocmget(struct tty_struct *tty)
 	unsigned int mcr;
 	unsigned long flags;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	spin_lock_irqsave(&edge_port->ep_lock, flags);
 
 	msr = edge_port->shadow_msr;
@@ -2478,7 +2418,7 @@ static int edge_tiocmget(struct tty_struct *tty)
 		  | ((msr & EDGEPORT_MSR_DSR)	? TIOCM_DSR: 0);  /* 0x100 */
 
 
-	dbg("%s -- %x", __func__, result);
+	dev_dbg(&port->dev, "%s -- %x\n", __func__, result);
 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
 	return result;
@@ -2538,15 +2478,15 @@ static int edge_ioctl(struct tty_struct *tty,
 	struct async_icount cnow;
 	struct async_icount cprev;
 
-	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
-		dbg("%s - (%d) TIOCGSERIAL", __func__, port->number);
+		dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
 		return get_serial_info(edge_port,
 				(struct serial_struct __user *) arg);
 	case TIOCMIWAIT:
-		dbg("%s - (%d) TIOCMIWAIT", __func__, port->number);
+		dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
 		cprev = edge_port->icount;
 		while (1) {
 			interruptible_sleep_on(&edge_port->delta_msr_wait);
@@ -2578,8 +2518,6 @@ static void edge_break(struct tty_struct *tty, int break_state)
 	int status;
 	int bv = 0;	/* Off */
 
-	dbg("%s - state = %d", __func__, break_state);
-
 	/* chase the port close */
 	chase_port(edge_port, 0, 0);
 
@@ -2587,8 +2525,8 @@ static void edge_break(struct tty_struct *tty, int break_state)
 		bv = 1;	/* On */
 	status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);
 	if (status)
-		dbg("%s - error %d sending break set/clear command.",
-		     __func__, status);
+		dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n",
+			__func__, status);
 }
 
 static int edge_startup(struct usb_serial *serial)
@@ -2655,7 +2593,6 @@ cleanup:
 
 static void edge_disconnect(struct usb_serial *serial)
 {
-	dbg("%s", __func__);
 }
 
 static void edge_release(struct usb_serial *serial)
@@ -2663,8 +2600,6 @@ static void edge_release(struct usb_serial *serial)
 	int i;
 	struct edgeport_port *edge_port;
 
-	dbg("%s", __func__);
-
 	for (i = 0; i < serial->num_ports; ++i) {
 		edge_port = usb_get_serial_port_data(serial->port[i]);
 		kfifo_free(&edge_port->write_fifo);
@@ -2692,7 +2627,7 @@ static ssize_t store_uart_mode(struct device *dev,
 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
 	unsigned int v = simple_strtoul(valbuf, NULL, 0);
 
-	dbg("%s: setting uart_mode = %d", __func__, v);
+	dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v);
 
 	if (v < 256)
 		edge_port->bUartMode = v;
@@ -2789,9 +2724,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 MODULE_FIRMWARE("edgeport/down3.bin");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");
 
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index c85a7eb87d4..1068bf22e27 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -33,7 +33,6 @@
 #define DRIVER_AUTHOR "Ganesh Varadarajan <ganesh@veritas.com>"
 #define DRIVER_DESC "USB PocketPC PDA driver"
 
-static bool debug;
 static int connect_retries = KP_RETRIES;
 static int initial_wait;
 
@@ -616,9 +615,6 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
 module_param(connect_retries, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(connect_retries,
 		"Maximum number of connect retries (one second each)");
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index 5811d34b6c6..20a132ec39e 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -138,11 +138,10 @@ static const struct usb_device_id id_table[] = {
 };
 MODULE_DEVICE_TABLE(usb, id_table);
 
-static bool debug;
-
 static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct usb_device *dev = port->serial->dev;
+	struct usb_device *udev = port->serial->dev;
+	struct device *dev = &port->dev;
 	u8 buf_flow_static[16] = IPW_BYTES_FLOWINIT;
 	u8 *buf_flow_init;
 	int result;
@@ -154,8 +153,8 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
 	/* --1: Tell the modem to initialize (we think) From sniffs this is
 	 *	always the first thing that gets sent to the modem during
 	 *	opening of the device */
-	dbg("%s: Sending SIO_INIT (we guess)", __func__);
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	dev_dbg(dev, "%s: Sending SIO_INIT (we guess)\n", __func__);
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_INIT,
 			 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 0,
@@ -164,22 +163,19 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
 			 0,
 			 100000);
 	if (result < 0)
-		dev_err(&port->dev,
-			"Init of modem failed (error = %d)\n", result);
+		dev_err(dev, "Init of modem failed (error = %d)\n", result);
 
 	/* reset the bulk pipes */
-	usb_clear_halt(dev,
-			usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress));
-	usb_clear_halt(dev,
-			usb_sndbulkpipe(dev, port->bulk_out_endpointAddress));
+	usb_clear_halt(udev, usb_rcvbulkpipe(udev, port->bulk_in_endpointAddress));
+	usb_clear_halt(udev, usb_sndbulkpipe(udev, port->bulk_out_endpointAddress));
 
 	/*--2: Start reading from the device */
-	dbg("%s: setting up bulk read callback", __func__);
+	dev_dbg(dev, "%s: setting up bulk read callback\n", __func__);
 	usb_wwan_open(tty, port);
 
 	/*--3: Tell the modem to open the floodgates on the rx bulk channel */
-	dbg("%s:asking modem for RxRead (RXBULK_ON)", __func__);
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	dev_dbg(dev, "%s:asking modem for RxRead (RXBULK_ON)\n", __func__);
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_RXCTL,
 			 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 IPW_RXBULK_ON,
@@ -188,12 +184,11 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
 			 0,
 			 100000);
 	if (result < 0)
-		dev_err(&port->dev,
-			"Enabling bulk RxRead failed (error = %d)\n", result);
+		dev_err(dev, "Enabling bulk RxRead failed (error = %d)\n", result);
 
 	/*--4: setup the initial flowcontrol */
-	dbg("%s:setting init flowcontrol (%s)", __func__, buf_flow_init);
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	dev_dbg(dev, "%s:setting init flowcontrol (%s)\n", __func__, buf_flow_init);
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_HANDFLOW,
 			 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 0,
@@ -202,8 +197,7 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
 			 0x10,
 			 200000);
 	if (result < 0)
-		dev_err(&port->dev,
-			"initial flowcontrol failed (error = %d)\n", result);
+		dev_err(dev, "initial flowcontrol failed (error = %d)\n", result);
 
 	kfree(buf_flow_init);
 	return 0;
@@ -227,19 +221,19 @@ static void ipw_release(struct usb_serial *serial)
 {
 	struct usb_wwan_intf_private *data = usb_get_serial_data(serial);
 
-	usb_wwan_release(serial);
 	usb_set_serial_data(serial, NULL);
 	kfree(data);
 }
 
 static void ipw_dtr_rts(struct usb_serial_port *port, int on)
 {
-	struct usb_device *dev = port->serial->dev;
+	struct usb_device *udev = port->serial->dev;
+	struct device *dev = &port->dev;
 	int result;
 
-	dbg("%s: on = %d", __func__, on);
+	dev_dbg(dev, "%s: on = %d\n", __func__, on);
 
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_SET_PIN,
 			 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 on ? IPW_PIN_SETDTR : IPW_PIN_CLRDTR,
@@ -248,10 +242,9 @@ static void ipw_dtr_rts(struct usb_serial_port *port, int on)
 			 0,
 			 200000);
 	if (result < 0)
-		dev_err(&port->dev, "setting dtr failed (error = %d)\n",
-								result);
+		dev_err(dev, "setting dtr failed (error = %d)\n", result);
 
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_SET_PIN, USB_TYPE_VENDOR |
 					USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 on ? IPW_PIN_SETRTS : IPW_PIN_CLRRTS,
@@ -260,18 +253,18 @@ static void ipw_dtr_rts(struct usb_serial_port *port, int on)
 			 0,
 			 200000);
 	if (result < 0)
-		dev_err(&port->dev, "setting rts failed (error = %d)\n",
-								result);
+		dev_err(dev, "setting rts failed (error = %d)\n", result);
 }
 
 static void ipw_close(struct usb_serial_port *port)
 {
-	struct usb_device *dev = port->serial->dev;
+	struct usb_device *udev = port->serial->dev;
+	struct device *dev = &port->dev;
 	int result;
 
 	/*--3: purge */
-	dbg("%s:sending purge", __func__);
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	dev_dbg(dev, "%s:sending purge\n", __func__);
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_PURGE, USB_TYPE_VENDOR |
 			 		USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 0x03,
@@ -280,12 +273,12 @@ static void ipw_close(struct usb_serial_port *port)
 			 0,
 			 200000);
 	if (result < 0)
-		dev_err(&port->dev, "purge failed (error = %d)\n", result);
+		dev_err(dev, "purge failed (error = %d)\n", result);
 
 
 	/* send RXBULK_off (tell modem to stop transmitting bulk data on
 	   rx chan) */
-	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 			 IPW_SIO_RXCTL,
 			 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
 			 IPW_RXBULK_OFF,
@@ -295,8 +288,7 @@ static void ipw_close(struct usb_serial_port *port)
 			 100000);
 
 	if (result < 0)
-		dev_err(&port->dev,
-			"Disabling bulk RxRead failed (error = %d)\n", result);
+		dev_err(dev, "Disabling bulk RxRead failed (error = %d)\n", result);
 
 	usb_wwan_close(port);
 }
@@ -309,12 +301,12 @@ static struct usb_serial_driver ipw_device = {
 	.description =		"IPWireless converter",
 	.id_table =		id_table,
 	.num_ports =		1,
-	.disconnect =		usb_wwan_disconnect,
 	.open =			ipw_open,
 	.close =		ipw_close,
 	.probe =		ipw_probe,
 	.attach =		usb_wwan_startup,
 	.release =		ipw_release,
+	.port_remove =		usb_wwan_port_remove,
 	.dtr_rts =		ipw_dtr_rts,
 	.write =		usb_wwan_write,
 };
@@ -329,6 +321,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index fc09414c960..e24e2d4f4c1 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -38,15 +38,9 @@
 #include <linux/usb/serial.h>
 #include <linux/usb/irda.h>
 
-/*
- * Version Information
- */
-#define DRIVER_VERSION "v0.5"
 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Johan Hovold <jhovold@gmail.com>"
 #define DRIVER_DESC "USB IR Dongle driver"
 
-static bool debug;
-
 /* if overridden by the user, then use their value for the size of the read and
  * write urbs */
 static int buffer_size;
@@ -381,7 +375,7 @@ static void ir_set_termios(struct tty_struct *tty,
 		ir_xbof = ir_xbof_change(xbof) ;
 
 	/* Only speed changes are supported */
-	tty_termios_copy_hw(tty->termios, old_termios);
+	tty_termios_copy_hw(&tty->termios, old_termios);
 	tty_encode_baud_rate(tty, baud, baud);
 
 	/*
@@ -430,18 +424,12 @@ err_buf:
 
 static int __init ir_init(void)
 {
-	int retval;
-
 	if (buffer_size) {
 		ir_device.bulk_in_size = buffer_size;
 		ir_device.bulk_out_size = buffer_size;
 	}
 
-	retval = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ir_id_table);
-	if (retval == 0)
-		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
-			       DRIVER_DESC "\n");
-	return retval;
+	return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ir_id_table);
 }
 
 static void __exit ir_exit(void)
@@ -457,8 +445,6 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
 module_param(xbof, int, 0);
 MODULE_PARM_DESC(xbof, "Force specific number of XBOFs");
 module_param(buffer_size, int, 0);
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 22b1eb5040b..01da3ea36e8 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -32,13 +32,6 @@
 #include "iuu_phoenix.h"
 #include <linux/random.h>
 
-
-#ifdef CONFIG_USB_SERIAL_DEBUG
-static bool debug = 1;
-#else
-static bool debug;
-#endif
-
 /*
  * Version Information
  */
@@ -72,7 +65,6 @@ struct iuu_private {
 	u8 *writebuf;		/* buffer for writing to device */
 	int writelen;		/* num of byte to write to device */
 	u8 *buf;		/* used for initialize speed */
-	u8 *dbgbuf;		/* debug buffer */
 	u8 len;
 	int vcc;		/* vcc (either 3 or 5 V) */
 	u32 baud;
@@ -84,32 +76,31 @@ struct iuu_private {
 static void iuu_free_buf(struct iuu_private *priv)
 {
 	kfree(priv->buf);
-	kfree(priv->dbgbuf);
 	kfree(priv->writebuf);
 }
 
-static int iuu_alloc_buf(struct iuu_private *priv)
+static int iuu_alloc_buf(struct usb_serial *serial, struct iuu_private *priv)
 {
 	priv->buf = kzalloc(256, GFP_KERNEL);
-	priv->dbgbuf = kzalloc(256, GFP_KERNEL);
 	priv->writebuf = kzalloc(256, GFP_KERNEL);
-	if (!priv->buf || !priv->dbgbuf || !priv->writebuf) {
+	if (!priv->buf || !priv->writebuf) {
 		iuu_free_buf(priv);
-		dbg("%s problem allocation buffer", __func__);
+		dev_dbg(&serial->dev->dev, "%s problem allocation buffer\n", __func__);
 		return -ENOMEM;
 	}
-	dbg("%s - Privates buffers allocation success", __func__);
+	dev_dbg(&serial->dev->dev, "%s - Privates buffers allocation success\n", __func__);
 	return 0;
 }
 
 static int iuu_startup(struct usb_serial *serial)
 {
 	struct iuu_private *priv;
+
 	priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
-	dbg("%s- priv allocation success", __func__);
+	dev_dbg(&serial->dev->dev, "%s- priv allocation success\n", __func__);
 	if (!priv)
 		return -ENOMEM;
-	if (iuu_alloc_buf(priv)) {
+	if (iuu_alloc_buf(serial, priv)) {
 		kfree(priv);
 		return -ENOMEM;
 	}
@@ -130,13 +121,13 @@ static void iuu_release(struct usb_serial *serial)
 
 	if (priv) {
 		iuu_free_buf(priv);
-		dbg("%s - I will free all", __func__);
+		dev_dbg(&port->dev, "%s - I will free all\n", __func__);
 		usb_set_serial_port_data(port, NULL);
 
-		dbg("%s - priv is not anymore in port structure", __func__);
+		dev_dbg(&port->dev, "%s - priv is not anymore in port structure\n", __func__);
 		kfree(priv);
 
-		dbg("%s priv is now kfree", __func__);
+		dev_dbg(&port->dev, "%s priv is now kfree\n", __func__);
 	}
 }
 
@@ -148,13 +139,13 @@ static int iuu_tiocmset(struct tty_struct *tty,
 	unsigned long flags;
 
 	/* FIXME: locking on tiomstatus */
-	dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __func__,
-	    port->number, set, clear);
+	dev_dbg(&port->dev, "%s msg : SET = 0x%04x, CLEAR = 0x%04x\n",
+		__func__, set, clear);
 
 	spin_lock_irqsave(&priv->lock, flags);
 
 	if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
-		dbg("%s TIOCMSET RESET called !!!", __func__);
+		dev_dbg(&port->dev, "%s TIOCMSET RESET called !!!\n", __func__);
 		priv->reset = 1;
 	}
 	if (set & TIOCM_RTS)
@@ -190,7 +181,7 @@ static void iuu_rxcmd(struct urb *urb)
 	int status = urb->status;
 
 	if (status) {
-		dbg("%s - status = %d", __func__, status);
+		dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
 		/* error stop all */
 		return;
 	}
@@ -244,13 +235,13 @@ static void iuu_update_status_callback(struct urb *urb)
 	int status = urb->status;
 
 	if (status) {
-		dbg("%s - status = %d", __func__, status);
+		dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
 		/* error stop all */
 		return;
 	}
 
 	st = urb->transfer_buffer;
-	dbg("%s - enter", __func__);
+	dev_dbg(&port->dev, "%s - enter\n", __func__);
 	if (urb->actual_length == 1) {
 		switch (st[0]) {
 		case 0x1:
@@ -272,7 +263,7 @@ static void iuu_status_callback(struct urb *urb)
 	int result;
 	int status = urb->status;
 
-	dbg("%s - status = %d", __func__, status);
+	dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
 	usb_fill_bulk_urb(port->read_urb, port->serial->dev,
 			  usb_rcvbulkpipe(port->serial->dev,
 					  port->bulk_in_endpointAddress),
@@ -311,9 +302,9 @@ static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 			 count, &actual, HZ * 1);
 
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - error = %2x", __func__, status);
+		dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
 	else
-		dbg("%s - write OK !", __func__);
+		dev_dbg(&port->dev, "%s - write OK !\n", __func__);
 	return status;
 }
 
@@ -331,9 +322,9 @@ static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 			 count, &actual, HZ * 1);
 
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - error = %2x", __func__, status);
+		dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
 	else
-		dbg("%s - read OK !", __func__);
+		dev_dbg(&port->dev, "%s - read OK !\n", __func__);
 	return status;
 }
 
@@ -357,9 +348,9 @@ static int iuu_led(struct usb_serial_port *port, unsigned int R,
 	status = bulk_immediate(port, buf, 8);
 	kfree(buf);
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - led error status = %2x", __func__, status);
+		dev_dbg(&port->dev, "%s - led error status = %2x\n", __func__, status);
 	else
-		dbg("%s - led OK !", __func__);
+		dev_dbg(&port->dev, "%s - led OK !\n", __func__);
 	return IUU_OPERATION_OK;
 }
 
@@ -445,7 +436,7 @@ static int iuu_clk(struct usb_serial_port *port, int dwFrq)
 
 		status = bulk_immediate(port, (u8 *) priv->buf, Count);
 		if (status != 0) {
-			dbg("%s - write error ", __func__);
+			dev_dbg(&port->dev, "%s - write error\n", __func__);
 			return status;
 		}
 	} else if (frq == 3579000) {
@@ -554,12 +545,13 @@ static int iuu_clk(struct usb_serial_port *port, int dwFrq)
 
 	status = bulk_immediate(port, (u8 *) priv->buf, Count);
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - write error ", __func__);
+		dev_dbg(&port->dev, "%s - write error\n", __func__);
 	return status;
 }
 
 static int iuu_uart_flush(struct usb_serial_port *port)
 {
+	struct device *dev = &port->dev;
 	int i;
 	int status;
 	u8 rxcmd = IUU_UART_RX;
@@ -571,27 +563,26 @@ static int iuu_uart_flush(struct usb_serial_port *port)
 	for (i = 0; i < 2; i++) {
 		status = bulk_immediate(port, &rxcmd, 1);
 		if (status != IUU_OPERATION_OK) {
-			dbg("%s - uart_flush_write error", __func__);
+			dev_dbg(dev, "%s - uart_flush_write error\n", __func__);
 			return status;
 		}
 
 		status = read_immediate(port, &priv->len, 1);
 		if (status != IUU_OPERATION_OK) {
-			dbg("%s - uart_flush_read error", __func__);
+			dev_dbg(dev, "%s - uart_flush_read error\n", __func__);
 			return status;
 		}
 
 		if (priv->len > 0) {
-			dbg("%s - uart_flush datalen is : %i ", __func__,
-			    priv->len);
+			dev_dbg(dev, "%s - uart_flush datalen is : %i\n", __func__, priv->len);
 			status = read_immediate(port, priv->buf, priv->len);
 			if (status != IUU_OPERATION_OK) {
-				dbg("%s - uart_flush_read error", __func__);
+				dev_dbg(dev, "%s - uart_flush_read error\n", __func__);
 				return status;
 			}
 		}
 	}
-	dbg("%s - uart_flush_read OK!", __func__);
+	dev_dbg(dev, "%s - uart_flush_read OK!\n", __func__);
 	iuu_led(port, 0, 0xF000, 0, 0xFF);
 	return status;
 }
@@ -610,10 +601,10 @@ static void read_buf_callback(struct urb *urb)
 		return;
 	}
 
-	dbg("%s - %i chars to write", __func__, urb->actual_length);
+	dev_dbg(&port->dev, "%s - %i chars to write\n", __func__, urb->actual_length);
 	tty = tty_port_tty_get(&port->port);
 	if (data == NULL)
-		dbg("%s - data is NULL !!!", __func__);
+		dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
 	if (tty && urb->actual_length && data) {
 		tty_insert_flip_string(tty, data, urb->actual_length);
 		tty_flip_buffer_push(tty);
@@ -627,7 +618,6 @@ static int iuu_bulk_write(struct usb_serial_port *port)
 	struct iuu_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 	int result;
-	int i;
 	int buf_len;
 	char *buf_ptr = port->write_urb->transfer_buffer;
 
@@ -640,14 +630,8 @@ static int iuu_bulk_write(struct usb_serial_port *port)
 	buf_len = priv->writelen;
 	priv->writelen = 0;
 	spin_unlock_irqrestore(&priv->lock, flags);
-	if (debug == 1) {
-		for (i = 0; i < buf_len; i++)
-			sprintf(priv->dbgbuf + i*2 ,
-				"%02X", priv->writebuf[i]);
-		priv->dbgbuf[buf_len+i*2] = 0;
-		dbg("%s - writing %i chars : %s", __func__,
-		    buf_len, priv->dbgbuf);
-	}
+	dev_dbg(&port->dev, "%s - writing %i chars : %*ph\n", __func__,
+		buf_len, buf_len, buf_ptr);
 	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 			  usb_sndbulkpipe(port->serial->dev,
 					  port->bulk_out_endpointAddress),
@@ -683,18 +667,18 @@ static void iuu_uart_read_callback(struct urb *urb)
 	priv->poll++;
 
 	if (status) {
-		dbg("%s - status = %d", __func__, status);
+		dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
 		/* error stop all */
 		return;
 	}
 	if (data == NULL)
-		dbg("%s - data is NULL !!!", __func__);
+		dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
 
 	if (urb->actual_length == 1  && data != NULL)
 		len = (int) data[0];
 
 	if (urb->actual_length > 1) {
-		dbg("%s - urb->actual_length = %i", __func__,
+		dev_dbg(&port->dev, "%s - urb->actual_length = %i\n", __func__,
 		    urb->actual_length);
 		error = 1;
 		return;
@@ -702,7 +686,7 @@ static void iuu_uart_read_callback(struct urb *urb)
 	/* if len > 0 call readbuf */
 
 	if (len > 0 && error == 0) {
-		dbg("%s - call read buf - len to read is %i ",
+		dev_dbg(&port->dev, "%s - call read buf - len to read is %i\n",
 			__func__, len);
 		status = iuu_read_buf(port, len);
 		return;
@@ -729,7 +713,7 @@ static void iuu_uart_read_callback(struct urb *urb)
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
 	/* if nothing to write call again rxcmd */
-	dbg("%s - rxcmd recall", __func__);
+	dev_dbg(&port->dev, "%s - rxcmd recall\n", __func__);
 	iuu_led_activity_off(urb);
 }
 
@@ -769,7 +753,7 @@ static void read_rxcmd_callback(struct urb *urb)
 			  port->read_urb->transfer_buffer, 256,
 			  iuu_uart_read_callback, port);
 	result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
-	dbg("%s - submit result = %d", __func__, result);
+	dev_dbg(&port->dev, "%s - submit result = %d\n", __func__, result);
 }
 
 static int iuu_uart_on(struct usb_serial_port *port)
@@ -789,13 +773,13 @@ static int iuu_uart_on(struct usb_serial_port *port)
 
 	status = bulk_immediate(port, buf, 4);
 	if (status != IUU_OPERATION_OK) {
-		dbg("%s - uart_on error", __func__);
+		dev_dbg(&port->dev, "%s - uart_on error\n", __func__);
 		goto uart_enable_failed;
 	}
 	/*  iuu_reset() the card after iuu_uart_on() */
 	status = iuu_uart_flush(port);
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - uart_flush error", __func__);
+		dev_dbg(&port->dev, "%s - uart_flush error\n", __func__);
 uart_enable_failed:
 	kfree(buf);
 	return status;
@@ -813,7 +797,7 @@ static int iuu_uart_off(struct usb_serial_port *port)
 
 	status = bulk_immediate(port, buf, 1);
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - uart_off error", __func__);
+		dev_dbg(&port->dev, "%s - uart_off error\n", __func__);
 
 	kfree(buf);
 	return status;
@@ -830,7 +814,7 @@ static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
 	u8 T1reload = 0;
 	unsigned int T1FrekvensHZ = 0;
 
-	dbg("%s - enter baud_base=%d", __func__, baud_base);
+	dev_dbg(&port->dev, "%s - enter baud_base=%d\n", __func__, baud_base);
 	dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL);
 
 	if (!dataout)
@@ -911,7 +895,7 @@ static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
 
 	status = bulk_immediate(port, dataout, DataCount);
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - uart_off error", __func__);
+		dev_dbg(&port->dev, "%s - uart_off error\n", __func__);
 	kfree(dataout);
 	return status;
 }
@@ -921,7 +905,7 @@ static void iuu_set_termios(struct tty_struct *tty,
 {
 	const u32 supported_mask = CMSPAR|PARENB|PARODD;
 	struct iuu_private *priv = usb_get_serial_port_data(port);
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 	int status;
 	u32 actual;
 	u32 parity;
@@ -930,9 +914,9 @@ static void iuu_set_termios(struct tty_struct *tty,
 	u32 newval = cflag & supported_mask;
 
 	/* Just use the ospeed. ispeed should be the same. */
-	baud = tty->termios->c_ospeed;
+	baud = tty->termios.c_ospeed;
 
-	dbg("%s - enter c_ospeed or baud=%d", __func__, baud);
+	dev_dbg(&port->dev, "%s - enter c_ospeed or baud=%d\n", __func__, baud);
 
 	/* compute the parity parameter */
 	parity = 0;
@@ -961,13 +945,13 @@ static void iuu_set_termios(struct tty_struct *tty,
 	 * settings back over and then adjust them
 	 */
 	if (old_termios)
-		tty_termios_copy_hw(tty->termios, old_termios);
+		tty_termios_copy_hw(&tty->termios, old_termios);
 	if (status != 0)	/* Set failed - return old bits */
 		return;
 	/* Re-encode speed, parity and csize */
 	tty_encode_baud_rate(tty, baud, baud);
-	tty->termios->c_cflag &= ~(supported_mask|CSIZE);
-	tty->termios->c_cflag |= newval | csize;
+	tty->termios.c_cflag &= ~(supported_mask|CSIZE);
+	tty->termios.c_cflag |= newval | csize;
 }
 
 static void iuu_close(struct usb_serial_port *port)
@@ -983,7 +967,7 @@ static void iuu_close(struct usb_serial_port *port)
 	if (serial->dev) {
 		/* free writebuf */
 		/* shutdown our urbs */
-		dbg("%s - shutting down urbs", __func__);
+		dev_dbg(&port->dev, "%s - shutting down urbs\n", __func__);
 		usb_kill_urb(port->write_urb);
 		usb_kill_urb(port->read_urb);
 		usb_kill_urb(port->interrupt_in_urb);
@@ -993,31 +977,32 @@ static void iuu_close(struct usb_serial_port *port)
 
 static void iuu_init_termios(struct tty_struct *tty)
 {
-	*(tty->termios) = tty_std_termios;
-	tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600
+	tty->termios = tty_std_termios;
+	tty->termios.c_cflag = CLOCAL | CREAD | CS8 | B9600
 				| TIOCM_CTS | CSTOPB | PARENB;
-	tty->termios->c_ispeed = 9600;
-	tty->termios->c_ospeed = 9600;
-	tty->termios->c_lflag = 0;
-	tty->termios->c_oflag = 0;
-	tty->termios->c_iflag = 0;
+	tty->termios.c_ispeed = 9600;
+	tty->termios.c_ospeed = 9600;
+	tty->termios.c_lflag = 0;
+	tty->termios.c_oflag = 0;
+	tty->termios.c_iflag = 0;
 }
 
 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
+	struct device *dev = &port->dev;
 	u8 *buf;
 	int result;
 	int baud;
 	u32 actual;
 	struct iuu_private *priv = usb_get_serial_port_data(port);
 
-	baud = tty->termios->c_ospeed;
-	tty->termios->c_ispeed = baud;
+	baud = tty->termios.c_ospeed;
+	tty->termios.c_ispeed = baud;
 	/* Re-encode speed */
 	tty_encode_baud_rate(tty, baud, baud);
 
-	dbg("%s -  port %d, baud %d", __func__, port->number, baud);
+	dev_dbg(dev, "%s - baud %d\n", __func__, baud);
 	usb_clear_halt(serial->dev, port->write_urb->pipe);
 	usb_clear_halt(serial->dev, port->read_urb->pipe);
 
@@ -1032,14 +1017,14 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
 	result = usb_control_msg(port->serial->dev,	\
 				usb_rcvctrlpipe(port->serial->dev, 0),	\
 				b, a, c, d, buf, 1, 1000); \
-	dbg("0x%x:0x%x:0x%x:0x%x  %d - %x", a, b, c, d, result, \
+	dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x  %d - %x\n", a, b, c, d, result, \
 				buf[0]); } while (0);
 
 #define SOUP(a, b, c, d)  do { \
 	result = usb_control_msg(port->serial->dev,	\
 				usb_sndctrlpipe(port->serial->dev, 0),	\
 				b, a, c, d, NULL, 0, 1000); \
-	dbg("0x%x:0x%x:0x%x:0x%x  %d", a, b, c, d, result); } while (0)
+	dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x  %d\n", a, b, c, d, result); } while (0)
 
 	/*  This is not UART related but IUU USB driver related or something */
 	/*  like that. Basically no IUU will accept any commands from the USB */
@@ -1119,7 +1104,7 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	iuu_uart_flush(port);
 
-	dbg("%s - initialization done", __func__);
+	dev_dbg(dev, "%s - initialization done\n", __func__);
 
 	memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
 	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
@@ -1129,11 +1114,10 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
 			  read_rxcmd_callback, port);
 	result = usb_submit_urb(port->write_urb, GFP_KERNEL);
 	if (result) {
-		dev_err(&port->dev, "%s - failed submitting read urb,"
-			" error %d\n", __func__, result);
+		dev_err(dev, "%s - failed submitting read urb, error %d\n", __func__, result);
 		iuu_close(port);
 	} else {
-		dbg("%s - rxcmd OK", __func__);
+		dev_dbg(dev, "%s - rxcmd OK\n", __func__);
 	}
 
 	return result;
@@ -1159,9 +1143,9 @@ static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
 	kfree(buf);
 
 	if (status != IUU_OPERATION_OK)
-		dbg("%s - vcc error status = %2x", __func__, status);
+		dev_dbg(&port->dev, "%s - vcc error status = %2x\n", __func__, status);
 	else
-		dbg("%s - vcc OK !", __func__);
+		dev_dbg(&port->dev, "%s - vcc OK !\n", __func__);
 
 	return status;
 }
@@ -1192,7 +1176,7 @@ static ssize_t store_vcc_mode(struct device *dev,
 		goto fail_store_vcc_mode;
 	}
 
-	dbg("%s: setting vcc_mode = %ld", __func__, v);
+	dev_dbg(dev, "%s: setting vcc_mode = %ld", __func__, v);
 
 	if ((v != 3) && (v != 5)) {
 		dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
@@ -1257,8 +1241,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
 MODULE_VERSION(DRIVER_VERSION);
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
 
 module_param(xmas, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index af0b70eaf03..29c943d737d 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -38,15 +38,12 @@
 #include <linux/tty_flip.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
-#include <linux/firmware.h>
-#include <linux/ihex.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
+#include <linux/usb/ezusb.h>
 #include "keyspan.h"
 
-static bool debug;
-
 /*
  * Version Information
  */
@@ -158,14 +155,14 @@ static void keyspan_set_termios(struct tty_struct *tty,
 
 	p_priv = usb_get_serial_port_data(port);
 	d_details = p_priv->device_details;
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 	device_port = port->number - port->serial->minor;
 
 	/* Baud rate calculation takes baud rate as an integer
 	   so other rates can be generated if desired. */
 	baud_rate = tty_get_baud_rate(tty);
 	/* If no match or invalid, don't change */
-	if (d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
+	if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
 				NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
 		/* FIXME - more to do here to ensure rate changes cleanly */
 		/* FIXME - calcuate exact rate from divisor ? */
@@ -179,7 +176,7 @@ static void keyspan_set_termios(struct tty_struct *tty,
 	p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
 
 	/* Mark/Space not supported */
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 
 	keyspan_send_setup(port, 0);
 }
@@ -241,8 +238,8 @@ static int keyspan_write(struct tty_struct *tty,
 		dataOffset = 1;
 	}
 
-	dbg("%s - for port %d (%d chars), flip=%d",
-	    __func__, port->number, count, p_priv->out_flip);
+	dev_dbg(&port->dev, "%s - for port %d (%d chars), flip=%d\n",
+		__func__, port->number, count, p_priv->out_flip);
 
 	for (left = count; left > 0; left -= todo) {
 		todo = left;
@@ -255,11 +252,11 @@ static int keyspan_write(struct tty_struct *tty,
 		this_urb = p_priv->out_urbs[flip];
 		if (this_urb == NULL) {
 			/* no bulk out, so return 0 bytes written */
-			dbg("%s - no output urb :(", __func__);
+			dev_dbg(&port->dev, "%s - no output urb :(\n", __func__);
 			return count;
 		}
 
-		dbg("%s - endpoint %d flip %d",
+		dev_dbg(&port->dev, "%s - endpoint %d flip %d\n",
 			__func__, usb_pipeendpoint(this_urb->pipe), flip);
 
 		if (this_urb->status == -EINPROGRESS) {
@@ -282,7 +279,7 @@ static int keyspan_write(struct tty_struct *tty,
 
 		err = usb_submit_urb(this_urb, GFP_ATOMIC);
 		if (err != 0)
-			dbg("usb_submit_urb(write bulk) failed (%d)", err);
+			dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed (%d)\n", err);
 		p_priv->tx_start_time[flip] = jiffies;
 
 		/* Flip for next time if usa26 or usa28 interface
@@ -305,8 +302,8 @@ static void	usa26_indat_callback(struct urb *urb)
 	endpoint = usb_pipeendpoint(urb->pipe);
 
 	if (status) {
-		dbg("%s - nonzero status: %x on endpoint %d.",
-		    __func__, status, endpoint);
+		dev_dbg(&urb->dev->dev,"%s - nonzero status: %x on endpoint %d.\n",
+			__func__, status, endpoint);
 		return;
 	}
 
@@ -325,7 +322,7 @@ static void	usa26_indat_callback(struct urb *urb)
 				tty_insert_flip_char(tty, data[i], err);
 		} else {
 			/* some bytes had errors, every byte has status */
-			dbg("%s - RX error!!!!", __func__);
+			dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
 			for (i = 0; i + 1 < urb->actual_length; i += 2) {
 				int stat = data[i], flag = 0;
 				if (stat & RXERROR_OVERRUN)
@@ -345,7 +342,7 @@ static void	usa26_indat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 }
 
 /* Outdat handling is common for all devices */
@@ -356,7 +353,7 @@ static void	usa2x_outdat_callback(struct urb *urb)
 
 	port =  urb->context;
 	p_priv = usb_get_serial_port_data(port);
-	dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
+	dev_dbg(&port->dev, "%s - urb %d\n", __func__, urb == p_priv->out_urbs[1]);
 
 	usb_serial_port_softint(port);
 }
@@ -374,7 +371,7 @@ static void	usa26_outcont_callback(struct urb *urb)
 	p_priv = usb_get_serial_port_data(port);
 
 	if (p_priv->resend_cont) {
-		dbg("%s - sending setup", __func__);
+		dev_dbg(&port->dev, "%s - sending setup\n", __func__);
 		keyspan_usa26_send_setup(port->serial, port,
 						p_priv->resend_cont - 1);
 	}
@@ -394,20 +391,22 @@ static void	usa26_instat_callback(struct urb *urb)
 	serial =  urb->context;
 
 	if (status) {
-		dbg("%s - nonzero status: %x", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x\n", __func__, status);
 		return;
 	}
 	if (urb->actual_length != 9) {
-		dbg("%s - %d byte report??", __func__, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
 		goto exit;
 	}
 
 	msg = (struct keyspan_usa26_portStatusMessage *)data;
 
 #if 0
-	dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
-	    __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
-	    msg->_txXoff, msg->rxEnabled, msg->controlResponse);
+	dev_dbg(&urb->dev->dev,
+		"%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
+		__func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr,
+		msg->ri, msg->_txOff, msg->_txXoff, msg->rxEnabled,
+		msg->controlResponse);
 #endif
 
 	/* Now do something useful with the data */
@@ -415,7 +414,7 @@ static void	usa26_instat_callback(struct urb *urb)
 
 	/* Check port number from message and retrieve private data */
 	if (msg->port >= serial->num_ports) {
-		dbg("%s - Unexpected port number %d", __func__, msg->port);
+		dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
 		goto exit;
 	}
 	port = serial->port[msg->port];
@@ -438,7 +437,7 @@ static void	usa26_instat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 exit: ;
 }
 
@@ -465,8 +464,8 @@ static void usa28_indat_callback(struct urb *urb)
 
 	do {
 		if (status) {
-			dbg("%s - nonzero status: %x on endpoint %d.",
-			    __func__, status, usb_pipeendpoint(urb->pipe));
+			dev_dbg(&urb->dev->dev, "%s - nonzero status: %x on endpoint %d.\n",
+				__func__, status, usb_pipeendpoint(urb->pipe));
 			return;
 		}
 
@@ -484,7 +483,7 @@ static void usa28_indat_callback(struct urb *urb)
 		/* Resubmit urb so we continue receiving */
 		err = usb_submit_urb(urb, GFP_ATOMIC);
 		if (err != 0)
-			dbg("%s - resubmit read urb failed. (%d)",
+			dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n",
 							__func__, err);
 		p_priv->in_flip ^= 1;
 
@@ -505,7 +504,7 @@ static void	usa28_outcont_callback(struct urb *urb)
 	p_priv = usb_get_serial_port_data(port);
 
 	if (p_priv->resend_cont) {
-		dbg("%s - sending setup", __func__);
+		dev_dbg(&port->dev, "%s - sending setup\n", __func__);
 		keyspan_usa28_send_setup(port->serial, port,
 						p_priv->resend_cont - 1);
 	}
@@ -526,25 +525,28 @@ static void	usa28_instat_callback(struct urb *urb)
 	serial =  urb->context;
 
 	if (status) {
-		dbg("%s - nonzero status: %x", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x\n", __func__, status);
 		return;
 	}
 
 	if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
-		dbg("%s - bad length %d", __func__, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
 		goto exit;
 	}
 
-	/*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
-	    data[0], data[1], data[2], data[3], data[4], data[5],
-	    data[6], data[7], data[8], data[9], data[10], data[11]);*/
+	/*
+	dev_dbg(&urb->dev->dev,
+	  	"%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__,
+		data[0], data[1], data[2], data[3], data[4], data[5],
+		data[6], data[7], data[8], data[9], data[10], data[11]);
+	*/
 
 	/* Now do something useful with the data */
 	msg = (struct keyspan_usa28_portStatusMessage *)data;
 
 	/* Check port number from message and retrieve private data */
 	if (msg->port >= serial->num_ports) {
-		dbg("%s - Unexpected port number %d", __func__, msg->port);
+		dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
 		goto exit;
 	}
 	port = serial->port[msg->port];
@@ -567,7 +569,7 @@ static void	usa28_instat_callback(struct urb *urb)
 		/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 exit: ;
 }
 
@@ -589,7 +591,7 @@ static void	usa49_glocont_callback(struct urb *urb)
 		p_priv = usb_get_serial_port_data(port);
 
 		if (p_priv->resend_cont) {
-			dbg("%s - sending setup", __func__);
+			dev_dbg(&port->dev, "%s - sending setup\n", __func__);
 			keyspan_usa49_send_setup(serial, port,
 						p_priv->resend_cont - 1);
 			break;
@@ -613,27 +615,29 @@ static void	usa49_instat_callback(struct urb *urb)
 	serial =  urb->context;
 
 	if (status) {
-		dbg("%s - nonzero status: %x", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x\n", __func__, status);
 		return;
 	}
 
 	if (urb->actual_length !=
 			sizeof(struct keyspan_usa49_portStatusMessage)) {
-		dbg("%s - bad length %d", __func__, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
 		goto exit;
 	}
 
-	/*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
-	    data[0], data[1], data[2], data[3], data[4], data[5],
-	    data[6], data[7], data[8], data[9], data[10]);*/
+	/*
+	dev_dbg(&urb->dev->dev, "%s: %x %x %x %x %x %x %x %x %x %x %x",
+		__func__, data[0], data[1], data[2], data[3], data[4],
+		data[5], data[6], data[7], data[8], data[9], data[10]);
+	*/
 
 	/* Now do something useful with the data */
 	msg = (struct keyspan_usa49_portStatusMessage *)data;
 
 	/* Check port number from message and retrieve private data */
 	if (msg->portNumber >= serial->num_ports) {
-		dbg("%s - Unexpected port number %d",
-					__func__, msg->portNumber);
+		dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
+			__func__, msg->portNumber);
 		goto exit;
 	}
 	port = serial->port[msg->portNumber];
@@ -656,7 +660,7 @@ static void	usa49_instat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 exit:	;
 }
 
@@ -676,8 +680,8 @@ static void	usa49_indat_callback(struct urb *urb)
 	endpoint = usb_pipeendpoint(urb->pipe);
 
 	if (status) {
-		dbg("%s - nonzero status: %x on endpoint %d.", __func__,
-		    status, endpoint);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x on endpoint %d.\n",
+			__func__, status, endpoint);
 		return;
 	}
 
@@ -710,7 +714,7 @@ static void	usa49_indat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 }
 
 static void usa49wg_indat_callback(struct urb *urb)
@@ -725,7 +729,7 @@ static void usa49wg_indat_callback(struct urb *urb)
 	serial = urb->context;
 
 	if (status) {
-		dbg("%s - nonzero status: %x", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x\n", __func__, status);
 		return;
 	}
 
@@ -738,7 +742,7 @@ static void usa49wg_indat_callback(struct urb *urb)
 
 			/* Check port number from message*/
 			if (data[i] >= serial->num_ports) {
-				dbg("%s - Unexpected port number %d",
+				dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
 					__func__, data[i]);
 				return;
 			}
@@ -778,7 +782,7 @@ static void usa49wg_indat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 }
 
 /* not used, usa-49 doesn't have per-port control endpoints */
@@ -799,7 +803,7 @@ static void usa90_indat_callback(struct urb *urb)
 	endpoint = usb_pipeendpoint(urb->pipe);
 
 	if (status) {
-		dbg("%s - nonzero status: %x on endpoint %d.",
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x on endpoint %d.\n",
 		    __func__, status, endpoint);
 		return;
 	}
@@ -828,7 +832,7 @@ static void usa90_indat_callback(struct urb *urb)
 									err);
 			}  else {
 			/* some bytes had errors, every byte has status */
-				dbg("%s - RX error!!!!", __func__);
+				dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
 				for (i = 0; i + 1 < urb->actual_length; i += 2) {
 					int stat = data[i], flag = 0;
 					if (stat & RXERROR_OVERRUN)
@@ -850,7 +854,7 @@ static void usa90_indat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 }
 
 
@@ -868,11 +872,11 @@ static void	usa90_instat_callback(struct urb *urb)
 	serial =  urb->context;
 
 	if (status) {
-		dbg("%s - nonzero status: %x", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x\n", __func__, status);
 		return;
 	}
 	if (urb->actual_length < 14) {
-		dbg("%s - %d byte report??", __func__, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
 		goto exit;
 	}
 
@@ -900,7 +904,7 @@ static void	usa90_instat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 exit:
 	;
 }
@@ -914,7 +918,7 @@ static void	usa90_outcont_callback(struct urb *urb)
 	p_priv = usb_get_serial_port_data(port);
 
 	if (p_priv->resend_cont) {
-		dbg("%s - sending setup", __func__);
+		dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__);
 		keyspan_usa90_send_setup(port->serial, port,
 						p_priv->resend_cont - 1);
 	}
@@ -935,13 +939,13 @@ static void	usa67_instat_callback(struct urb *urb)
 	serial = urb->context;
 
 	if (status) {
-		dbg("%s - nonzero status: %x", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero status: %x\n", __func__, status);
 		return;
 	}
 
 	if (urb->actual_length !=
 			sizeof(struct keyspan_usa67_portStatusMessage)) {
-		dbg("%s - bad length %d", __func__, urb->actual_length);
+		dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
 		return;
 	}
 
@@ -951,7 +955,7 @@ static void	usa67_instat_callback(struct urb *urb)
 
 	/* Check port number from message and retrieve private data */
 	if (msg->port >= serial->num_ports) {
-		dbg("%s - Unexpected port number %d", __func__, msg->port);
+		dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
 		return;
 	}
 
@@ -973,7 +977,7 @@ static void	usa67_instat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving */
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
 }
 
 static void usa67_glocont_callback(struct urb *urb)
@@ -989,7 +993,7 @@ static void usa67_glocont_callback(struct urb *urb)
 		p_priv = usb_get_serial_port_data(port);
 
 		if (p_priv->resend_cont) {
-			dbg("%s - sending setup", __func__);
+			dev_dbg(&port->dev, "%s - sending setup\n", __func__);
 			keyspan_usa67_send_setup(serial, port,
 						p_priv->resend_cont - 1);
 			break;
@@ -1068,8 +1072,7 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
 		usb_clear_halt(urb->dev, urb->pipe);
 		err = usb_submit_urb(urb, GFP_KERNEL);
 		if (err != 0)
-			dbg("%s - submit urb %d failed (%d)",
-							__func__, i, err);
+			dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err);
 	}
 
 	/* Reset low level data toggle on out endpoints */
@@ -1086,13 +1089,13 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	device_port = port->number - port->serial->minor;
 	if (tty) {
-		cflag = tty->termios->c_cflag;
+		cflag = tty->termios.c_cflag;
 		/* Baud rate calculation takes baud rate as an integer
 		   so other rates can be generated if desired. */
 		baud_rate = tty_get_baud_rate(tty);
 		/* If no match or invalid, leave as default */
 		if (baud_rate >= 0
-		    && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
+		    && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
 					NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
 			p_priv->baud = baud_rate;
 		}
@@ -1142,7 +1145,7 @@ static void keyspan_close(struct usb_serial_port *port)
 	}
 
 	/*while (p_priv->outcont_urb->status == -EINPROGRESS) {
-		dbg("%s - urb in progress", __func__);
+		dev_dbg(&port->dev, "%s - urb in progress\n", __func__);
 	}*/
 
 	p_priv->out_flip = 0;
@@ -1162,18 +1165,15 @@ static void keyspan_close(struct usb_serial_port *port)
 /* download the firmware to a pre-renumeration device */
 static int keyspan_fake_startup(struct usb_serial *serial)
 {
-	int 				response;
-	const struct ihex_binrec 	*record;
-	char				*fw_name;
-	const struct firmware		*fw;
+	char	*fw_name;
 
-	dbg("Keyspan startup version %04x product %04x",
-	    le16_to_cpu(serial->dev->descriptor.bcdDevice),
-	    le16_to_cpu(serial->dev->descriptor.idProduct));
+	dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
+		le16_to_cpu(serial->dev->descriptor.bcdDevice),
+		le16_to_cpu(serial->dev->descriptor.idProduct));
 
 	if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
 								!= 0x8000) {
-		dbg("Firmware already loaded.  Quitting.");
+		dev_dbg(&serial->dev->dev, "Firmware already loaded.  Quitting.\n");
 		return 1;
 	}
 
@@ -1233,34 +1233,16 @@ static int keyspan_fake_startup(struct usb_serial *serial)
 		return 1;
 	}
 
-	if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
-		dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
-		return 1;
-	}
-
-	dbg("Uploading Keyspan %s firmware.", fw_name);
+	dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
 
-		/* download the firmware image */
-	response = ezusb_set_reset(serial, 1);
-
-	record = (const struct ihex_binrec *)fw->data;
-
-	while (record) {
-		response = ezusb_writememory(serial, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
-				response, be32_to_cpu(record->addr),
-				record->data, be16_to_cpu(record->len));
-			break;
-		}
-		record = ihex_next_binrec(record);
+	if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
+		dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
+			fw_name);
+		return -ENOENT;
 	}
-	release_firmware(fw);
-		/* bring device out of reset. Renumeration will occur in a
-		   moment and the new device will bind to the real driver */
-	response = ezusb_set_reset(serial, 0);
+
+	/* after downloading firmware Renumeration will occur in a
+	  moment and the new device will bind to the real driver */
 
 	/* we don't want this device to have a driver assigned to it. */
 	return 1;
@@ -1296,10 +1278,10 @@ static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
 	if (endpoint == -1)
 		return NULL;		/* endpoint not needed */
 
-	dbg("%s - alloc for endpoint %d.", __func__, endpoint);
+	dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %d.\n", __func__, endpoint);
 	urb = usb_alloc_urb(0, GFP_KERNEL);		/* No ISO */
 	if (urb == NULL) {
-		dbg("%s - alloc for endpoint %d failed.", __func__, endpoint);
+		dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %d failed.\n", __func__, endpoint);
 		return NULL;
 	}
 
@@ -1332,7 +1314,7 @@ static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
 		return NULL;
 	}
 
-	dbg("%s - using urb %p for %s endpoint %x",
+	dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n",
 	    __func__, urb, ep_type_name, endpoint);
 	return urb;
 }
@@ -1464,14 +1446,15 @@ static void keyspan_setup_urbs(struct usb_serial *serial)
 }
 
 /* usa19 function doesn't require prescaler */
-static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
+static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
+				   u32 baud_rate, u32 baudclk, u8 *rate_hi,
 				   u8 *rate_low, u8 *prescaler, int portnum)
 {
 	u32 	b16,	/* baud rate times 16 (actual rate used internally) */
 		div,	/* divisor */
 		cnt;	/* inverse of divisor (programmed into 8051) */
 
-	dbg("%s - %d.", __func__, baud_rate);
+	dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
 
 	/* prevent divide by zero...  */
 	b16 = baud_rate * 16L;
@@ -1498,19 +1481,20 @@ static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
 	if (rate_hi)
 		*rate_hi = (u8) ((cnt >> 8) & 0xff);
 	if (rate_low && rate_hi)
-		dbg("%s - %d %02x %02x.",
+		dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
 				__func__, baud_rate, *rate_hi, *rate_low);
 	return KEYSPAN_BAUD_RATE_OK;
 }
 
 /* usa19hs function doesn't require prescaler */
-static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
-				   u8 *rate_low, u8 *prescaler, int portnum)
+static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
+				     u32 baud_rate, u32 baudclk, u8 *rate_hi,
+				     u8 *rate_low, u8 *prescaler, int portnum)
 {
 	u32 	b16,	/* baud rate times 16 (actual rate used internally) */
 			div;	/* divisor */
 
-	dbg("%s - %d.", __func__, baud_rate);
+	dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
 
 	/* prevent divide by zero...  */
 	b16 = baud_rate * 16L;
@@ -1533,13 +1517,14 @@ static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
 		*rate_hi = (u8) ((div >> 8) & 0xff);
 
 	if (rate_low && rate_hi)
-		dbg("%s - %d %02x %02x.",
+		dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
 			__func__, baud_rate, *rate_hi, *rate_low);
 
 	return KEYSPAN_BAUD_RATE_OK;
 }
 
-static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
+static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
+				    u32 baud_rate, u32 baudclk, u8 *rate_hi,
 				    u8 *rate_low, u8 *prescaler, int portnum)
 {
 	u32 	b16,	/* baud rate times 16 (actual rate used internally) */
@@ -1551,7 +1536,7 @@ static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
 	u8	best_prescaler;
 	int	i;
 
-	dbg("%s - %d.", __func__, baud_rate);
+	dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
 
 	/* prevent divide by zero */
 	b16 = baud_rate * 16L;
@@ -1596,20 +1581,21 @@ static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
 		*rate_hi = (u8) ((div >> 8) & 0xff);
 	if (prescaler) {
 		*prescaler = best_prescaler;
-		/*  dbg("%s - %d %d", __func__, *prescaler, div); */
+		/*  dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */
 	}
 	return KEYSPAN_BAUD_RATE_OK;
 }
 
 	/* USA-28 supports different maximum baud rates on each port */
-static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
-				    u8 *rate_low, u8 *prescaler, int portnum)
+static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
+				   u32 baud_rate, u32 baudclk, u8 *rate_hi,
+				   u8 *rate_low, u8 *prescaler, int portnum)
 {
 	u32 	b16,	/* baud rate times 16 (actual rate used internally) */
 		div,	/* divisor */
 		cnt;	/* inverse of divisor (programmed into 8051) */
 
-	dbg("%s - %d.", __func__, baud_rate);
+	dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
 
 		/* prevent divide by zero */
 	b16 = baud_rate * 16L;
@@ -1642,7 +1628,7 @@ static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
 		*rate_low = (u8) (cnt & 0xff);
 	if (rate_hi)
 		*rate_hi = (u8) ((cnt >> 8) & 0xff);
-	dbg("%s - %d OK.", __func__, baud_rate);
+	dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate);
 	return KEYSPAN_BAUD_RATE_OK;
 }
 
@@ -1658,7 +1644,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	struct urb				*this_urb;
 	int 					device_port, err;
 
-	dbg("%s reset=%d", __func__, reset_port);
+	dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port);
 
 	s_priv = usb_get_serial_data(serial);
 	p_priv = usb_get_serial_port_data(port);
@@ -1668,11 +1654,11 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	outcont_urb = d_details->outcont_endpoints[port->number];
 	this_urb = p_priv->outcont_urb;
 
-	dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
+	dev_dbg(&port->dev, "%s - endpoint %d\n", __func__, usb_pipeendpoint(this_urb->pipe));
 
 		/* Make sure we have an urb then send the message */
 	if (this_urb == NULL) {
-		dbg("%s - oops no urb.", __func__);
+		dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
 		return -1;
 	}
 
@@ -1681,7 +1667,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	if ((reset_port + 1) > p_priv->resend_cont)
 		p_priv->resend_cont = reset_port + 1;
 	if (this_urb->status == -EINPROGRESS) {
-		/*  dbg("%s - already writing", __func__); */
+		/*  dev_dbg(&port->dev, "%s - already writing\n", __func__); */
 		mdelay(5);
 		return -1;
 	}
@@ -1692,11 +1678,11 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	if (p_priv->old_baud != p_priv->baud) {
 		p_priv->old_baud = p_priv->baud;
 		msg.setClocking = 0xff;
-		if (d_details->calculate_baud_rate
-		    (p_priv->baud, d_details->baudclk, &msg.baudHi,
-		     &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
-			dbg("%s - Invalid baud rate %d requested, using 9600.",
-						__func__, p_priv->baud);
+		if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
+						   &msg.baudHi, &msg.baudLo, &msg.prescaler,
+						   device_port) == KEYSPAN_INVALID_BAUD_RATE) {
+			dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
+				__func__, p_priv->baud);
 			msg.baudLo = 0;
 			msg.baudHi = 125;	/* Values for 9600 baud */
 			msg.prescaler = 10;
@@ -1790,12 +1776,12 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
 #if 0
 	else {
-		dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
-		    outcont_urb, this_urb->transfer_buffer_length,
-		    usb_pipeendpoint(this_urb->pipe));
+		dev_dbg(&port->dev, "%s - usb_submit_urb(%d) OK %d bytes (end %d)\n", __func__
+			outcont_urb, this_urb->transfer_buffer_length,
+			usb_pipeendpoint(this_urb->pipe));
 	}
 #endif
 
@@ -1821,7 +1807,7 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial,
 	/* only do something if we have a bulk out endpoint */
 	this_urb = p_priv->outcont_urb;
 	if (this_urb == NULL) {
-		dbg("%s - oops no urb.", __func__);
+		dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
 		return -1;
 	}
 
@@ -1830,7 +1816,7 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial,
 	if ((reset_port + 1) > p_priv->resend_cont)
 		p_priv->resend_cont = reset_port + 1;
 	if (this_urb->status == -EINPROGRESS) {
-		dbg("%s already writing", __func__);
+		dev_dbg(&port->dev, "%s already writing\n", __func__);
 		mdelay(5);
 		return -1;
 	}
@@ -1838,9 +1824,10 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial,
 	memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
 
 	msg.setBaudRate = 1;
-	if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
-		&msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
-		dbg("%s - Invalid baud rate requested %d.",
+	if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
+					   &msg.baudHi, &msg.baudLo, NULL,
+					   device_port) == KEYSPAN_INVALID_BAUD_RATE) {
+		dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n",
 						__func__, p_priv->baud);
 		msg.baudLo = 0xff;
 		msg.baudHi = 0xb2;	/* Values for 9600 baud */
@@ -1915,10 +1902,10 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial,
 
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - usb_submit_urb(setup) failed", __func__);
+		dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__);
 #if 0
 	else {
-		dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
+		dev_dbg(&port->dev, "%s - usb_submit_urb(setup) OK %d bytes\n", __func__,
 		    this_urb->transfer_buffer_length);
 	}
 #endif
@@ -1949,13 +1936,13 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 
 	/* Make sure we have an urb then send the message */
 	if (this_urb == NULL) {
-		dbg("%s - oops no urb for port %d.", __func__, port->number);
+		dev_dbg(&port->dev, "%s - oops no urb for port %d.\n", __func__, port->number);
 		return -1;
 	}
 
-	dbg("%s - endpoint %d port %d (%d)",
-			__func__, usb_pipeendpoint(this_urb->pipe),
-			port->number, device_port);
+	dev_dbg(&port->dev, "%s - endpoint %d port %d (%d)\n",
+		__func__, usb_pipeendpoint(this_urb->pipe),
+		port->number, device_port);
 
 	/* Save reset port val for resend.
 	   Don't overwrite resend for open/close condition. */
@@ -1963,7 +1950,7 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 		p_priv->resend_cont = reset_port + 1;
 
 	if (this_urb->status == -EINPROGRESS) {
-		/*  dbg("%s - already writing", __func__); */
+		/*  dev_dbg(&port->dev, "%s - already writing\n", __func__); */
 		mdelay(5);
 		return -1;
 	}
@@ -1977,11 +1964,11 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 	if (p_priv->old_baud != p_priv->baud) {
 		p_priv->old_baud = p_priv->baud;
 		msg.setClocking = 0xff;
-		if (d_details->calculate_baud_rate
-		    (p_priv->baud, d_details->baudclk, &msg.baudHi,
-		     &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
-			dbg("%s - Invalid baud rate %d requested, using 9600.",
-						__func__, p_priv->baud);
+		if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
+						   &msg.baudHi, &msg.baudLo, &msg.prescaler,
+						   device_port) == KEYSPAN_INVALID_BAUD_RATE) {
+			dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
+				__func__, p_priv->baud);
 			msg.baudLo = 0;
 			msg.baudHi = 125;	/* Values for 9600 baud */
 			msg.prescaler = 10;
@@ -2100,12 +2087,12 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 	}
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
 #if 0
 	else {
-		dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
-			   outcont_urb, this_urb->transfer_buffer_length,
-			   usb_pipeendpoint(this_urb->pipe));
+		dev_dbg(&port->dev, "%s - usb_submit_urb(%d) OK %d bytes (end %d)\n", __func__,
+			outcont_urb, this_urb->transfer_buffer_length,
+			usb_pipeendpoint(this_urb->pipe));
 	}
 #endif
 
@@ -2131,7 +2118,7 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial,
 	/* only do something if we have a bulk out endpoint */
 	this_urb = p_priv->outcont_urb;
 	if (this_urb == NULL) {
-		dbg("%s - oops no urb.", __func__);
+		dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
 		return -1;
 	}
 
@@ -2140,7 +2127,7 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial,
 	if ((reset_port + 1) > p_priv->resend_cont)
 		p_priv->resend_cont = reset_port + 1;
 	if (this_urb->status == -EINPROGRESS) {
-		dbg("%s already writing", __func__);
+		dev_dbg(&port->dev, "%s already writing\n", __func__);
 		mdelay(5);
 		return -1;
 	}
@@ -2151,13 +2138,12 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial,
 	if (p_priv->old_baud != p_priv->baud) {
 		p_priv->old_baud = p_priv->baud;
 		msg.setClocking = 0x01;
-		if (d_details->calculate_baud_rate
-		    (p_priv->baud, d_details->baudclk, &msg.baudHi,
-		     &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
-			dbg("%s - Invalid baud rate %d requested, using 9600.",
-						__func__, p_priv->baud);
+		if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
+						   &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
+			dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
+				__func__, p_priv->baud);
 			p_priv->baud = 9600;
-			d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
+			d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
 				&msg.baudHi, &msg.baudLo, &prescaler, 0);
 		}
 		msg.setRxMode = 1;
@@ -2239,7 +2225,7 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial,
 
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
+		dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
 	return 0;
 }
 
@@ -2265,7 +2251,7 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial,
 
 	/* Make sure we have an urb then send the message */
 	if (this_urb == NULL) {
-		dbg("%s - oops no urb for port %d.", __func__,
+		dev_dbg(&port->dev, "%s - oops no urb for port %d.\n", __func__,
 			port->number);
 		return -1;
 	}
@@ -2275,7 +2261,7 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial,
 	if ((reset_port + 1) > p_priv->resend_cont)
 		p_priv->resend_cont = reset_port + 1;
 	if (this_urb->status == -EINPROGRESS) {
-		/*  dbg("%s - already writing", __func__); */
+		/*  dev_dbg(&port->dev, "%s - already writing\n", __func__); */
 		mdelay(5);
 		return -1;
 	}
@@ -2288,11 +2274,11 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial,
 	if (p_priv->old_baud != p_priv->baud) {
 		p_priv->old_baud = p_priv->baud;
 		msg.setClocking = 0xff;
-		if (d_details->calculate_baud_rate
-		    (p_priv->baud, d_details->baudclk, &msg.baudHi,
-		     &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
-			dbg("%s - Invalid baud rate %d requested, using 9600.",
-						__func__, p_priv->baud);
+		if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
+						   &msg.baudHi, &msg.baudLo, &msg.prescaler,
+						   device_port) == KEYSPAN_INVALID_BAUD_RATE) {
+			dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
+				__func__, p_priv->baud);
 			msg.baudLo = 0;
 			msg.baudHi = 125;	/* Values for 9600 baud */
 			msg.prescaler = 10;
@@ -2383,8 +2369,7 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial,
 
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
-		dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
-				err);
+		dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
 	return 0;
 }
 
@@ -2440,8 +2425,7 @@ static int keyspan_startup(struct usb_serial *serial)
 	/* Setup private data for serial driver */
 	s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
 	if (!s_priv) {
-		dbg("%s - kmalloc for keyspan_serial_private failed.",
-								__func__);
+		dev_dbg(&serial->dev->dev, "%s - kmalloc for keyspan_serial_private failed.\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -2454,7 +2438,7 @@ static int keyspan_startup(struct usb_serial *serial)
 		p_priv = kzalloc(sizeof(struct keyspan_port_private),
 								GFP_KERNEL);
 		if (!p_priv) {
-			dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
+			dev_dbg(&port->dev, "%s - kmalloc for keyspan_port_private (%d) failed!.\n", __func__, i);
 			return 1;
 		}
 		p_priv->device_details = d_details;
@@ -2466,14 +2450,12 @@ static int keyspan_startup(struct usb_serial *serial)
 	if (s_priv->instat_urb != NULL) {
 		err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
 		if (err != 0)
-			dbg("%s - submit instat urb failed %d", __func__,
-				err);
+			dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err);
 	}
 	if (s_priv->indat_urb != NULL) {
 		err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
 		if (err != 0)
-			dbg("%s - submit indat urb failed %d", __func__,
-				err);
+			dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err);
 	}
 
 	return 0;
@@ -2527,10 +2509,8 @@ static void keyspan_release(struct usb_serial *serial)
 
 	s_priv = usb_get_serial_data(serial);
 
-	/*  dbg("Freeing serial->private."); */
 	kfree(s_priv);
 
-	/*  dbg("Freeing port->private."); */
 	/* Now free per port private data */
 	for (i = 0; i < serial->num_ports; i++) {
 		port = serial->port[i];
@@ -2554,7 +2534,3 @@ MODULE_FIRMWARE("keyspan/usa18x.fw");
 MODULE_FIRMWARE("keyspan/usa19w.fw");
 MODULE_FIRMWARE("keyspan/usa49w.fw");
 MODULE_FIRMWARE("keyspan/usa49wlc.fw");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h
index fe1c5d91692..0a8a40b5711 100644
--- a/drivers/usb/serial/keyspan.h
+++ b/drivers/usb/serial/keyspan.h
@@ -64,19 +64,23 @@ static int  keyspan_tiocmset		(struct tty_struct *tty,
 					 unsigned int clear);
 static int  keyspan_fake_startup	(struct usb_serial *serial);
 
-static int  keyspan_usa19_calc_baud	(u32 baud_rate, u32 baudclk, 
+static int  keyspan_usa19_calc_baud	(struct usb_serial_port *port,
+					 u32 baud_rate, u32 baudclk,
 					 u8 *rate_hi, u8 *rate_low,
 					 u8 *prescaler, int portnum);
 
-static int  keyspan_usa19w_calc_baud	(u32 baud_rate, u32 baudclk,
+static int  keyspan_usa19w_calc_baud	(struct usb_serial_port *port,
+					 u32 baud_rate, u32 baudclk,
 					 u8 *rate_hi, u8 *rate_low,
 					 u8 *prescaler, int portnum);
 
-static int  keyspan_usa28_calc_baud	(u32 baud_rate, u32 baudclk,
+static int  keyspan_usa28_calc_baud	(struct usb_serial_port *port,
+					 u32 baud_rate, u32 baudclk,
 					 u8 *rate_hi, u8 *rate_low,
 					 u8 *prescaler, int portnum);
 
-static int  keyspan_usa19hs_calc_baud	(u32 baud_rate, u32 baudclk,
+static int  keyspan_usa19hs_calc_baud	(struct usb_serial_port *port,
+					 u32 baud_rate, u32 baudclk,
 					 u8 *rate_hi, u8 *rate_low,
 					 u8 *prescaler, int portnum);
 
@@ -188,8 +192,9 @@ struct keyspan_device_details {
 		/* Endpoint used for global control functions */
 	int	glocont_endpoint;
 
-	int	(*calculate_baud_rate) (u32 baud_rate, u32 baudclk,
-			u8 *rate_hi, u8 *rate_low, u8 *prescaler, int portnum);
+	int	(*calculate_baud_rate) (struct usb_serial_port *port,
+					u32 baud_rate, u32 baudclk,
+					u8 *rate_hi, u8 *rate_low, u8 *prescaler, int portnum);
 	u32	baudclk;
 }; 
 
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index a4ac3cfeffc..ca43ecb4a2b 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -25,13 +25,10 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
-#include <linux/firmware.h>
-#include <linux/ihex.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
-
-static bool debug;
+#include <linux/usb/ezusb.h>
 
 /* make a simple define to handle if we are compiling keyspan_pda or xircom support */
 #if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
@@ -137,8 +134,8 @@ static void keyspan_pda_request_unthrottle(struct work_struct *work)
 				 0,
 				 2000);
 	if (result < 0)
-		dbg("%s - error %d from usb_control_msg",
-		    __func__, result);
+		dev_dbg(&serial->dev->dev, "%s - error %d from usb_control_msg\n",
+			__func__, result);
 }
 
 
@@ -160,12 +157,10 @@ static void keyspan_pda_rx_interrupt(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
-		    __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d",
-		    __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, status);
 		goto exit;
 	}
 
@@ -183,7 +178,7 @@ static void keyspan_pda_rx_interrupt(struct urb *urb)
 		break;
 	case 1:
 		/* status interrupt */
-		dbg(" rx int, d1=%d, d2=%d", data[1], data[2]);
+		dev_dbg(&port->dev, "rx int, d1=%d, d2=%d\n", data[1], data[2]);
 		switch (data[1]) {
 		case 1: /* modemline change */
 			break;
@@ -229,7 +224,7 @@ static void keyspan_pda_rx_unthrottle(struct tty_struct *tty)
 	/* just restart the receive interrupt URB */
 
 	if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL))
-		dbg(" usb_submit_urb(read urb) failed");
+		dev_dbg(&port->dev, "usb_submit_urb(read urb) failed\n");
 }
 
 
@@ -308,8 +303,8 @@ static void keyspan_pda_break_ctl(struct tty_struct *tty, int break_state)
 			USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
 			value, 0, NULL, 0, 2000);
 	if (result < 0)
-		dbg("%s - error %d from usb_control_msg",
-		    __func__, result);
+		dev_dbg(&port->dev, "%s - error %d from usb_control_msg\n",
+			__func__, result);
 	/* there is something funky about this.. the TCSBRK that 'cu' performs
 	   ought to translate into a break_ctl(-1),break_ctl(0) pair HZ/4
 	   seconds apart, but it feels like the break sent isn't as long as it
@@ -338,7 +333,7 @@ static void keyspan_pda_set_termios(struct tty_struct *tty,
 	   7[EOMS]1: 10 bit, b0/b7 is parity
 	   7[EOMS]2: 11 bit, b0/b7 is parity, extra bit always (mark?)
 
-	   HW flow control is dictated by the tty->termios->c_cflags & CRTSCTS
+	   HW flow control is dictated by the tty->termios.c_cflags & CRTSCTS
 	   bit.
 
 	   For now, just do baud. */
@@ -347,13 +342,13 @@ static void keyspan_pda_set_termios(struct tty_struct *tty,
 	speed = keyspan_pda_setbaud(serial, speed);
 
 	if (speed == 0) {
-		dbg("can't handle requested baud rate");
+		dev_dbg(&port->dev, "can't handle requested baud rate\n");
 		/* It hasn't changed so.. */
 		speed = tty_termios_baud_rate(old_termios);
 	}
 	/* Only speed can change so copy the old h/w parameters
 	   then encode the new speed */
-	tty_termios_copy_hw(tty->termios, old_termios);
+	tty_termios_copy_hw(&tty->termios, old_termios);
 	tty_encode_baud_rate(tty, speed, speed);
 }
 
@@ -459,7 +454,7 @@ static int keyspan_pda_write(struct tty_struct *tty,
 	   Block if we can't write anything at all, otherwise write as much as
 	   we can. */
 	if (count == 0) {
-		dbg(" write request of 0 bytes");
+		dev_dbg(&port->dev, "write request of 0 bytes\n");
 		return 0;
 	}
 
@@ -505,16 +500,16 @@ static int keyspan_pda_write(struct tty_struct *tty,
 				     1,
 				     2000);
 		if (rc > 0) {
-			dbg(" roomquery says %d", *room);
+			dev_dbg(&port->dev, "roomquery says %d\n", *room);
 			priv->tx_room = *room;
 		}
 		kfree(room);
 		if (rc < 0) {
-			dbg(" roomquery failed");
+			dev_dbg(&port->dev, "roomquery failed\n");
 			goto exit;
 		}
 		if (rc == 0) {
-			dbg(" roomquery returned 0 bytes");
+			dev_dbg(&port->dev, "roomquery returned 0 bytes\n");
 			rc = -EIO; /* device didn't return any data */
 			goto exit;
 		}
@@ -536,7 +531,7 @@ static int keyspan_pda_write(struct tty_struct *tty,
 
 		rc = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (rc) {
-			dbg(" usb_submit_urb(write bulk) failed");
+			dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed\n");
 			goto exit;
 		}
 	} else {
@@ -639,11 +634,11 @@ static int keyspan_pda_open(struct tty_struct *tty,
 			     1,
 			     2000);
 	if (rc < 0) {
-		dbg("%s - roomquery failed", __func__);
+		dev_dbg(&port->dev, "%s - roomquery failed\n", __func__);
 		goto error;
 	}
 	if (rc == 0) {
-		dbg("%s - roomquery returned 0 bytes", __func__);
+		dev_dbg(&port->dev, "%s - roomquery returned 0 bytes\n", __func__);
 		rc = -EIO;
 		goto error;
 	}
@@ -654,7 +649,7 @@ static int keyspan_pda_open(struct tty_struct *tty,
 	/*Start reading from the device*/
 	rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (rc) {
-		dbg("%s - usb_submit_urb(read int) failed", __func__);
+		dev_dbg(&port->dev, "%s - usb_submit_urb(read int) failed\n", __func__);
 		goto error;
 	}
 error:
@@ -678,11 +673,9 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial)
 {
 	int response;
 	const char *fw_name;
-	const struct ihex_binrec *record;
-	const struct firmware *fw;
 
 	/* download the firmware here ... */
-	response = ezusb_set_reset(serial, 1);
+	response = ezusb_fx1_set_reset(serial->dev, 1);
 
 	if (0) { ; }
 #ifdef KEYSPAN
@@ -699,30 +692,15 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial)
 			__func__);
 		return -ENODEV;
 	}
-	if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
+
+	if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
 		dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
 			fw_name);
 		return -ENOENT;
 	}
-	record = (const struct ihex_binrec *)fw->data;
-
-	while (record) {
-		response = ezusb_writememory(serial, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "ezusb_writememory failed "
-				"for Keyspan PDA firmware (%d %04X %p %d)\n",
-				response, be32_to_cpu(record->addr),
-				record->data, be16_to_cpu(record->len));
-			break;
-		}
-		record = ihex_next_binrec(record);
-	}
-	release_firmware(fw);
-	/* bring device out of reset. Renumeration will occur in a moment
-	   and the new device will bind to the real driver */
-	response = ezusb_set_reset(serial, 0);
+
+	/* after downloading firmware Renumeration will occur in a
+	  moment and the new device will bind to the real driver */
 
 	/* we want this device to fail to have a driver assigned to it. */
 	return 1;
@@ -828,6 +806,3 @@ module_usb_serial_driver(serial_drivers, id_table_combined);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index 5bed59cd577..3f6d7376c02 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -49,8 +49,6 @@
 #include <linux/usb/serial.h>
 #include "kl5kusb105.h"
 
-static bool debug;
-
 /*
  * Version Information
  */
@@ -239,7 +237,9 @@ static int klsi_105_startup(struct usb_serial *serial)
 		priv = kmalloc(sizeof(struct klsi_105_private),
 						   GFP_KERNEL);
 		if (!priv) {
-			dbg("%skmalloc for klsi_105_private failed.", __func__);
+			dev_dbg(&serial->interface->dev,
+				"%s - kmalloc for klsi_105_private failed.\n",
+				__func__);
 			i--;
 			goto err_cleanup;
 		}
@@ -311,12 +311,12 @@ static int  klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* set up termios structure */
 	spin_lock_irqsave(&priv->lock, flags);
-	priv->termios.c_iflag = tty->termios->c_iflag;
-	priv->termios.c_oflag = tty->termios->c_oflag;
-	priv->termios.c_cflag = tty->termios->c_cflag;
-	priv->termios.c_lflag = tty->termios->c_lflag;
+	priv->termios.c_iflag = tty->termios.c_iflag;
+	priv->termios.c_oflag = tty->termios.c_oflag;
+	priv->termios.c_cflag = tty->termios.c_cflag;
+	priv->termios.c_lflag = tty->termios.c_lflag;
 	for (i = 0; i < NCCS; i++)
-		priv->termios.c_cc[i] = tty->termios->c_cc[i];
+		priv->termios.c_cc[i] = tty->termios.c_cc[i];
 	priv->cfg.pktlen   = cfg->pktlen;
 	priv->cfg.baudrate = cfg->baudrate;
 	priv->cfg.databits = cfg->databits;
@@ -344,14 +344,14 @@ static int  klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
 		dev_err(&port->dev, "Enabling read failed (error = %d)\n", rc);
 		retval = rc;
 	} else
-		dbg("%s - enabled reading", __func__);
+		dev_dbg(&port->dev, "%s - enabled reading\n", __func__);
 
 	rc = klsi_105_get_line_state(port, &line_state);
 	if (rc >= 0) {
 		spin_lock_irqsave(&priv->lock, flags);
 		priv->line_state = line_state;
 		spin_unlock_irqrestore(&priv->lock, flags);
-		dbg("%s - read line state 0x%lx", __func__, line_state);
+		dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__, line_state);
 		retval = 0;
 	} else
 		retval = rc;
@@ -421,7 +421,7 @@ static void klsi_105_process_read_urb(struct urb *urb)
 		return;
 
 	if (urb->actual_length <= KLSI_HDR_LEN) {
-		dbg("%s - malformed packet", __func__);
+		dev_dbg(&port->dev, "%s - malformed packet\n", __func__);
 		return;
 	}
 
@@ -431,7 +431,7 @@ static void klsi_105_process_read_urb(struct urb *urb)
 
 	len = get_unaligned_le16(data);
 	if (len > urb->actual_length - KLSI_HDR_LEN) {
-		dbg("%s - packet length mismatch", __func__);
+		dev_dbg(&port->dev, "%s - packet length mismatch\n", __func__);
 		len = urb->actual_length - KLSI_HDR_LEN;
 	}
 
@@ -445,9 +445,10 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 				 struct ktermios *old_termios)
 {
 	struct klsi_105_private *priv = usb_get_serial_port_data(port);
-	unsigned int iflag = tty->termios->c_iflag;
+	struct device *dev = &port->dev;
+	unsigned int iflag = tty->termios.c_iflag;
 	unsigned int old_iflag = old_termios->c_iflag;
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 	unsigned int old_cflag = old_termios->c_cflag;
 	struct klsi_105_port_settings *cfg;
 	unsigned long flags;
@@ -455,8 +456,7 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 
 	cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
 	if (!cfg) {
-		dev_err(&port->dev, "%s - out of memory for config buffer.\n",
-				__func__);
+		dev_err(dev, "%s - out of memory for config buffer.\n", __func__);
 		return;
 	}
 
@@ -471,7 +471,7 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 	if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
 		/* reassert DTR and (maybe) RTS on transition from B0 */
 		if ((old_cflag & CBAUD) == B0) {
-			dbg("%s: baud was B0", __func__);
+			dev_dbg(dev, "%s: baud was B0\n", __func__);
 #if 0
 			priv->control_state |= TIOCM_DTR;
 			/* don't set RTS if using hardware flow control */
@@ -509,14 +509,13 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 		priv->cfg.baudrate = kl5kusb105a_sio_b115200;
 		break;
 	default:
-		dbg("KLSI USB->Serial converter:"
-		    " unsupported baudrate request, using default of 9600");
-			priv->cfg.baudrate = kl5kusb105a_sio_b9600;
+		dev_dbg(dev, "KLSI USB->Serial converter: unsupported baudrate request, using default of 9600");
+		priv->cfg.baudrate = kl5kusb105a_sio_b9600;
 		baud = 9600;
 		break;
 	}
 	if ((cflag & CBAUD) == B0) {
-		dbg("%s: baud is B0", __func__);
+		dev_dbg(dev, "%s: baud is B0\n", __func__);
 		/* Drop RTS and DTR */
 		/* maybe this should be simulated by sending read
 		 * disable and read enable messages?
@@ -533,11 +532,11 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 		/* set the number of data bits */
 		switch (cflag & CSIZE) {
 		case CS5:
-			dbg("%s - 5 bits/byte not supported", __func__);
+			dev_dbg(dev, "%s - 5 bits/byte not supported\n", __func__);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			goto err;
 		case CS6:
-			dbg("%s - 6 bits/byte not supported", __func__);
+			dev_dbg(dev, "%s - 6 bits/byte not supported\n", __func__);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			goto err;
 		case CS7:
@@ -547,8 +546,7 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 			priv->cfg.databits = kl5kusb105a_dtb_8;
 			break;
 		default:
-			dev_err(&port->dev,
-				"CSIZE was not CS5-CS8, using default of 8\n");
+			dev_err(dev, "CSIZE was not CS5-CS8, using default of 8\n");
 			priv->cfg.databits = kl5kusb105a_dtb_8;
 			break;
 		}
@@ -560,7 +558,7 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 	if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))
 	    || (cflag & CSTOPB) != (old_cflag & CSTOPB)) {
 		/* Not currently supported */
-		tty->termios->c_cflag &= ~(PARENB|PARODD|CSTOPB);
+		tty->termios.c_cflag &= ~(PARENB|PARODD|CSTOPB);
 #if 0
 		priv->last_lcr = 0;
 
@@ -587,7 +585,7 @@ static void klsi_105_set_termios(struct tty_struct *tty,
 	    || (iflag & IXON) != (old_iflag & IXON)
 	    ||  (cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
 		/* Not currently supported */
-		tty->termios->c_cflag &= ~CRTSCTS;
+		tty->termios.c_cflag &= ~CRTSCTS;
 		/* Drop DTR/RTS if no flow control otherwise assert */
 #if 0
 		if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS))
@@ -616,7 +614,7 @@ static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
 				(struct mct_u232_private *)port->private;
 	unsigned char lcr = priv->last_lcr;
 
-	dbg("%sstate=%d", __func__, break_state);
+	dev_dbg(&port->dev, "%s - state=%d\n", __func__, break_state);
 
 	/* LOCKING */
 	if (break_state)
@@ -645,7 +643,7 @@ static int klsi_105_tiocmget(struct tty_struct *tty)
 	spin_lock_irqsave(&priv->lock, flags);
 	priv->line_state = line_state;
 	spin_unlock_irqrestore(&priv->lock, flags);
-	dbg("%s - read line state 0x%lx", __func__, line_state);
+	dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__, line_state);
 	return (int)line_state;
 }
 
@@ -681,6 +679,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "enable extensive debugging messages");
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index fafeabb64c5..5c4d2fbd4e1 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -38,8 +38,6 @@
 #include <linux/ioctl.h>
 #include "kobil_sct.h"
 
-static bool debug;
-
 /* Version Information */
 #define DRIVER_VERSION "21/05/2004"
 #define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
@@ -139,17 +137,16 @@ static int kobil_startup(struct usb_serial *serial)
 
 	switch (priv->device_type) {
 	case KOBIL_ADAPTER_B_PRODUCT_ID:
-		printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
+		dev_dbg(&serial->dev->dev, "KOBIL B1 PRO / KAAN PRO detected\n");
 		break;
 	case KOBIL_ADAPTER_K_PRODUCT_ID:
-		printk(KERN_DEBUG
-		  "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
+		dev_dbg(&serial->dev->dev, "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
 		break;
 	case KOBIL_USBTWIN_PRODUCT_ID:
-		printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
+		dev_dbg(&serial->dev->dev, "KOBIL USBTWIN detected\n");
 		break;
 	case KOBIL_KAAN_SIM_PRODUCT_ID:
-		printk(KERN_DEBUG "KOBIL KAAN SIM detected\n");
+		dev_dbg(&serial->dev->dev, "KOBIL KAAN SIM detected\n");
 		break;
 	}
 	usb_set_serial_port_data(serial->port[0], priv);
@@ -164,13 +161,15 @@ static int kobil_startup(struct usb_serial *serial)
 	for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
 		endpoint = &altsetting->endpoint[i];
 		if (usb_endpoint_is_int_out(&endpoint->desc)) {
-			dbg("%s Found interrupt out endpoint. Address: %d",
+			dev_dbg(&serial->dev->dev,
+				"%s Found interrupt out endpoint. Address: %d\n",
 				__func__, endpoint->desc.bEndpointAddress);
 			priv->write_int_endpoint_address =
 				endpoint->desc.bEndpointAddress;
 		}
 		if (usb_endpoint_is_int_in(&endpoint->desc)) {
-			dbg("%s Found interrupt in  endpoint. Address: %d",
+			dev_dbg(&serial->dev->dev,
+				"%s Found interrupt in  endpoint. Address: %d\n",
 				__func__, endpoint->desc.bEndpointAddress);
 			priv->read_int_endpoint_address =
 				endpoint->desc.bEndpointAddress;
@@ -191,15 +190,16 @@ static void kobil_release(struct usb_serial *serial)
 static void kobil_init_termios(struct tty_struct *tty)
 {
 	/* Default to echo off and other sane device settings */
-	tty->termios->c_lflag = 0;
-	tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
-	tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
+	tty->termios.c_lflag = 0;
+	tty->termios.c_iflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
+	tty->termios.c_iflag |= IGNBRK | IGNPAR | IXOFF;
 	/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
-	tty->termios->c_oflag &= ~ONLCR;
+	tty->termios.c_oflag &= ~ONLCR;
 }
 
 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
+	struct device *dev = &port->dev;
 	int result = 0;
 	struct kobil_private *priv;
 	unsigned char *transfer_buffer;
@@ -215,12 +215,10 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* allocate write_urb */
 	if (!port->write_urb) {
-		dbg("%s - port %d  Allocating port->write_urb",
-						__func__, port->number);
+		dev_dbg(dev, "%s - Allocating port->write_urb\n", __func__);
 		port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
 		if (!port->write_urb) {
-			dbg("%s - port %d usb_alloc_urb failed",
-						__func__, port->number);
+			dev_dbg(dev, "%s - usb_alloc_urb failed\n", __func__);
 			kfree(transfer_buffer);
 			return -ENOMEM;
 		}
@@ -247,10 +245,9 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 			  transfer_buffer_length,
 			  KOBIL_TIMEOUT
 	);
-	dbg("%s - port %d Send get_HW_version URB returns: %i",
-		__func__, port->number, result);
-	dbg("Harware version: %i.%i.%i",
-		transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
+	dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result);
+	dev_dbg(dev, "Harware version: %i.%i.%i\n", transfer_buffer[0],
+		transfer_buffer[1], transfer_buffer[2]);
 
 	/* get firmware version */
 	result = usb_control_msg(port->serial->dev,
@@ -263,10 +260,9 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 			  transfer_buffer_length,
 			  KOBIL_TIMEOUT
 	);
-	dbg("%s - port %d Send get_FW_version URB returns: %i",
-					__func__, port->number, result);
-	dbg("Firmware version: %i.%i.%i",
-		transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);
+	dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result);
+	dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0],
+		transfer_buffer[1], transfer_buffer[2]);
 
 	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
 			priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
@@ -282,8 +278,7 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 			  0,
 			  KOBIL_TIMEOUT
 		);
-		dbg("%s - port %d Send set_baudrate URB returns: %i",
-					__func__, port->number, result);
+		dev_dbg(dev, "%s - Send set_baudrate URB returns: %i\n", __func__, result);
 
 		/* reset all queues */
 		result = usb_control_msg(port->serial->dev,
@@ -296,16 +291,14 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 			  0,
 			  KOBIL_TIMEOUT
 		);
-		dbg("%s - port %d Send reset_all_queues URB returns: %i",
-					__func__, port->number, result);
+		dev_dbg(dev, "%s - Send reset_all_queues URB returns: %i\n", __func__, result);
 	}
 	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
 	    priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
 	    priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 		/* start reading (Adapter B 'cause PNP string) */
 		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
-		dbg("%s - port %d Send read URB returns: %i",
-					__func__, port->number, result);
+		dev_dbg(dev, "%s - Send read URB returns: %i\n", __func__, result);
 	}
 
 	kfree(transfer_buffer);
@@ -333,11 +326,9 @@ static void kobil_read_int_callback(struct urb *urb)
 	struct tty_struct *tty;
 	unsigned char *data = urb->transfer_buffer;
 	int status = urb->status;
-/*	char *dbg_data; */
 
 	if (status) {
-		dbg("%s - port %d Read int status not zero: %d",
-		    __func__, port->number, status);
+		dev_dbg(&port->dev, "%s - Read int status not zero: %d\n", __func__, status);
 		return;
 	}
 
@@ -346,6 +337,8 @@ static void kobil_read_int_callback(struct urb *urb)
 
 		/* BEGIN DEBUG */
 		/*
+		  char *dbg_data;
+
 		  dbg_data = kzalloc((3 *  purb->actual_length + 10)
 						* sizeof(char), GFP_KERNEL);
 		  if (! dbg_data) {
@@ -354,7 +347,7 @@ static void kobil_read_int_callback(struct urb *urb)
 		  for (i = 0; i < purb->actual_length; i++) {
 			  sprintf(dbg_data +3*i, "%02X ", data[i]);
 		  }
-		  dbg(" <-- %s", dbg_data);
+		  dev_dbg(&port->dev, " <-- %s\n", dbg_data);
 		  kfree(dbg_data);
 		*/
 		/* END DEBUG */
@@ -365,8 +358,7 @@ static void kobil_read_int_callback(struct urb *urb)
 	tty_kref_put(tty);
 
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
-	dbg("%s - port %d Send read URB returns: %i",
-			__func__, port->number, result);
+	dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
 }
 
 
@@ -384,22 +376,20 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 	struct kobil_private *priv;
 
 	if (count == 0) {
-		dbg("%s - port %d write request of 0 bytes",
-						__func__, port->number);
+		dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
 		return 0;
 	}
 
 	priv = usb_get_serial_port_data(port);
 
 	if (count > (KOBIL_BUF_LENGTH - priv->filled)) {
-		dbg("%s - port %d Error: write request bigger than buffer size", __func__, port->number);
+		dev_dbg(&port->dev, "%s - Error: write request bigger than buffer size\n", __func__);
 		return -ENOMEM;
 	}
 
 	/* Copy data to buffer */
 	memcpy(priv->buf + priv->filled, buf, count);
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-						priv->buf + priv->filled);
+	usb_serial_debug_data(&port->dev, __func__, count, priv->buf + priv->filled);
 	priv->filled = priv->filled + count;
 
 	/* only send complete block. TWIN, KAAN SIM and adapter K
@@ -432,8 +422,7 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 			priv->cur_pos = priv->cur_pos + length;
 			result = usb_submit_urb(port->write_urb, GFP_NOIO);
-			dbg("%s - port %d Send write URB returns: %i",
-					__func__, port->number, result);
+			dev_dbg(&port->dev, "%s - Send write URB returns: %i\n", __func__, result);
 			todo = priv->filled - priv->cur_pos;
 
 			if (todo > 0)
@@ -448,8 +437,7 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 			priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
 			result = usb_submit_urb(port->interrupt_in_urb,
 								GFP_NOIO);
-			dbg("%s - port %d Send read URB returns: %i",
-					__func__, port->number, result);
+			dev_dbg(&port->dev, "%s - Send read URB returns: %i\n", __func__, result);
 		}
 	}
 	return count;
@@ -493,8 +481,8 @@ static int kobil_tiocmget(struct tty_struct *tty)
 			  transfer_buffer_length,
 			  KOBIL_TIMEOUT);
 
-	dbg("%s - port %d Send get_status_line_state URB returns: %i. Statusline: %02x",
-	    __func__, port->number, result, transfer_buffer[0]);
+	dev_dbg(&port->dev, "%s - Send get_status_line_state URB returns: %i. Statusline: %02x\n",
+		__func__, result, transfer_buffer[0]);
 
 	result = 0;
 	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
@@ -507,6 +495,7 @@ static int kobil_tiocmset(struct tty_struct *tty,
 			   unsigned int set, unsigned int clear)
 {
 	struct usb_serial_port *port = tty->driver_data;
+	struct device *dev = &port->dev;
 	struct kobil_private *priv;
 	int result;
 	int dtr = 0;
@@ -538,11 +527,9 @@ static int kobil_tiocmset(struct tty_struct *tty,
 
 	if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
 		if (dtr != 0)
-			dbg("%s - port %d Setting DTR",
-						__func__, port->number);
+			dev_dbg(dev, "%s - Setting DTR\n", __func__);
 		else
-			dbg("%s - port %d Clearing DTR",
-						__func__, port->number);
+			dev_dbg(dev, "%s - Clearing DTR\n", __func__);
 		result = usb_control_msg(port->serial->dev,
 			  usb_rcvctrlpipe(port->serial->dev, 0),
 			  SUSBCRequest_SetStatusLinesOrQueues,
@@ -554,11 +541,9 @@ static int kobil_tiocmset(struct tty_struct *tty,
 			  KOBIL_TIMEOUT);
 	} else {
 		if (rts != 0)
-			dbg("%s - port %d Setting RTS",
-						__func__, port->number);
+			dev_dbg(dev, "%s - Setting RTS\n", __func__);
 		else
-			dbg("%s - port %d Clearing RTS",
-						__func__, port->number);
+			dev_dbg(dev, "%s - Clearing RTS\n", __func__);
 		result = usb_control_msg(port->serial->dev,
 			usb_rcvctrlpipe(port->serial->dev, 0),
 			SUSBCRequest_SetStatusLinesOrQueues,
@@ -569,8 +554,7 @@ static int kobil_tiocmset(struct tty_struct *tty,
 			0,
 			KOBIL_TIMEOUT);
 	}
-	dbg("%s - port %d Send set_status_line URB returns: %i",
-					__func__, port->number, result);
+	dev_dbg(dev, "%s - Send set_status_line URB returns: %i\n", __func__, result);
 	kfree(transfer_buffer);
 	return (result < 0) ? result : 0;
 }
@@ -581,14 +565,14 @@ static void kobil_set_termios(struct tty_struct *tty,
 	struct kobil_private *priv;
 	int result;
 	unsigned short urb_val = 0;
-	int c_cflag = tty->termios->c_cflag;
+	int c_cflag = tty->termios.c_cflag;
 	speed_t speed;
 
 	priv = usb_get_serial_port_data(port);
 	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID ||
 			priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
 		/* This device doesn't support ioctl calls */
-		*tty->termios = *old;
+		tty_termios_copy_hw(&tty->termios, old);
 		return;
 	}
 
@@ -612,7 +596,7 @@ static void kobil_set_termios(struct tty_struct *tty,
 			urb_val |= SUSBCR_SPASB_EvenParity;
 	} else
 		urb_val |= SUSBCR_SPASB_NoParity;
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 	tty_encode_baud_rate(tty, speed, speed);
 
 	result = usb_control_msg(port->serial->dev,
@@ -658,7 +642,8 @@ static int kobil_ioctl(struct tty_struct *tty,
 			  KOBIL_TIMEOUT
 			);
 
-		dbg("%s - port %d Send reset_all_queues (FLUSH) URB returns: %i", __func__, port->number, result);
+		dev_dbg(&port->dev,
+			"%s - Send reset_all_queues (FLUSH) URB returns: %i", __func__, result);
 		kfree(transfer_buffer);
 		return (result < 0) ? -EIO: 0;
 	default:
@@ -671,6 +656,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index a71fa0aa040..f3947712e13 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -45,8 +45,6 @@
 #define DRIVER_AUTHOR "Wolfgang Grandegger <wolfgang@ces.ch>"
 #define DRIVER_DESC "Magic Control Technology USB-RS232 converter driver"
 
-static bool debug;
-
 /*
  * Function prototypes
  */
@@ -214,7 +212,7 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty,
 			value, rc);
 	else
 		tty_encode_baud_rate(tty, speed, speed);
-	dbg("set_baud_rate: value: 0x%x, divisor: 0x%x", value, divisor);
+	dev_dbg(&port->dev, "set_baud_rate: value: 0x%x, divisor: 0x%x\n", value, divisor);
 
 	/* Mimic the MCT-supplied Windows driver (version 1.21P.0104), which
 	   always sends two extra USB 'device request' messages after the
@@ -247,8 +245,8 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty,
 	if (port && C_CRTSCTS(tty))
 	   cts_enable_byte = 1;
 
-	dbg("set_baud_rate: send second control message, data = %02X",
-							cts_enable_byte);
+	dev_dbg(&port->dev, "set_baud_rate: send second control message, data = %02X\n",
+		cts_enable_byte);
 	buf[0] = cts_enable_byte;
 	rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 			MCT_U232_SET_CTS_REQUEST,
@@ -263,7 +261,8 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty,
 	return rc;
 } /* mct_u232_set_baud_rate */
 
-static int mct_u232_set_line_ctrl(struct usb_serial *serial, unsigned char lcr)
+static int mct_u232_set_line_ctrl(struct usb_serial_port *port,
+				  unsigned char lcr)
 {
 	int rc;
 	unsigned char *buf;
@@ -273,20 +272,19 @@ static int mct_u232_set_line_ctrl(struct usb_serial *serial, unsigned char lcr)
 		return -ENOMEM;
 
 	buf[0] = lcr;
-	rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+	rc = usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
 			MCT_U232_SET_LINE_CTRL_REQUEST,
 			MCT_U232_SET_REQUEST_TYPE,
 			0, 0, buf, MCT_U232_SET_LINE_CTRL_SIZE,
 			WDR_TIMEOUT);
 	if (rc < 0)
-		dev_err(&serial->dev->dev,
-			"Set LINE CTRL 0x%x failed (error = %d)\n", lcr, rc);
-	dbg("set_line_ctrl: 0x%x", lcr);
+		dev_err(&port->dev, "Set LINE CTRL 0x%x failed (error = %d)\n", lcr, rc);
+	dev_dbg(&port->dev, "set_line_ctrl: 0x%x\n", lcr);
 	kfree(buf);
 	return rc;
 } /* mct_u232_set_line_ctrl */
 
-static int mct_u232_set_modem_ctrl(struct usb_serial *serial,
+static int mct_u232_set_modem_ctrl(struct usb_serial_port *port,
 				   unsigned int control_state)
 {
 	int rc;
@@ -304,25 +302,24 @@ static int mct_u232_set_modem_ctrl(struct usb_serial *serial,
 		mcr |= MCT_U232_MCR_RTS;
 
 	buf[0] = mcr;
-	rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+	rc = usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0),
 			MCT_U232_SET_MODEM_CTRL_REQUEST,
 			MCT_U232_SET_REQUEST_TYPE,
 			0, 0, buf, MCT_U232_SET_MODEM_CTRL_SIZE,
 			WDR_TIMEOUT);
 	kfree(buf);
 
-	dbg("set_modem_ctrl: state=0x%x ==> mcr=0x%x", control_state, mcr);
+	dev_dbg(&port->dev, "set_modem_ctrl: state=0x%x ==> mcr=0x%x\n", control_state, mcr);
 
 	if (rc < 0) {
-		dev_err(&serial->dev->dev,
-			"Set MODEM CTRL 0x%x failed (error = %d)\n", mcr, rc);
+		dev_err(&port->dev, "Set MODEM CTRL 0x%x failed (error = %d)\n", mcr, rc);
 		return rc;
 	}
 	return 0;
 } /* mct_u232_set_modem_ctrl */
 
-static int mct_u232_get_modem_stat(struct usb_serial *serial,
-						unsigned char *msr)
+static int mct_u232_get_modem_stat(struct usb_serial_port *port,
+				   unsigned char *msr)
 {
 	int rc;
 	unsigned char *buf;
@@ -332,19 +329,18 @@ static int mct_u232_get_modem_stat(struct usb_serial *serial,
 		*msr = 0;
 		return -ENOMEM;
 	}
-	rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+	rc = usb_control_msg(port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0),
 			MCT_U232_GET_MODEM_STAT_REQUEST,
 			MCT_U232_GET_REQUEST_TYPE,
 			0, 0, buf, MCT_U232_GET_MODEM_STAT_SIZE,
 			WDR_TIMEOUT);
 	if (rc < 0) {
-		dev_err(&serial->dev->dev,
-			"Get MODEM STATus failed (error = %d)\n", rc);
+		dev_err(&port->dev, "Get MODEM STATus failed (error = %d)\n", rc);
 		*msr = 0;
 	} else {
 		*msr = buf[0];
 	}
-	dbg("get_modem_stat: 0x%x", *msr);
+	dev_dbg(&port->dev, "get_modem_stat: 0x%x\n", *msr);
 	kfree(buf);
 	return rc;
 } /* mct_u232_get_modem_stat */
@@ -363,8 +359,8 @@ static void mct_u232_msr_to_icount(struct async_icount *icount,
 		icount->dcd++;
 } /* mct_u232_msr_to_icount */
 
-static void mct_u232_msr_to_state(unsigned int *control_state,
-						unsigned char msr)
+static void mct_u232_msr_to_state(struct usb_serial_port *port,
+				  unsigned int *control_state, unsigned char msr)
 {
 	/* Translate Control Line states */
 	if (msr & MCT_U232_MSR_DSR)
@@ -383,7 +379,7 @@ static void mct_u232_msr_to_state(unsigned int *control_state,
 		*control_state |=  TIOCM_CD;
 	else
 		*control_state &= ~TIOCM_CD;
-	dbg("msr_to_state: msr=0x%x ==> state=0x%x", msr, *control_state);
+	dev_dbg(&port->dev, "msr_to_state: msr=0x%x ==> state=0x%x\n", msr, *control_state);
 } /* mct_u232_msr_to_state */
 
 /*
@@ -454,7 +450,7 @@ static int  mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port)
 	 * either.
 	 */
 	spin_lock_irqsave(&priv->lock, flags);
-	if (tty && (tty->termios->c_cflag & CBAUD))
+	if (tty && (tty->termios.c_cflag & CBAUD))
 		priv->control_state = TIOCM_DTR | TIOCM_RTS;
 	else
 		priv->control_state = 0;
@@ -465,14 +461,14 @@ static int  mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port)
 	control_state = priv->control_state;
 	last_lcr = priv->last_lcr;
 	spin_unlock_irqrestore(&priv->lock, flags);
-	mct_u232_set_modem_ctrl(serial, control_state);
-	mct_u232_set_line_ctrl(serial, last_lcr);
+	mct_u232_set_modem_ctrl(port, control_state);
+	mct_u232_set_line_ctrl(port, last_lcr);
 
 	/* Read modem status and update control state */
-	mct_u232_get_modem_stat(serial, &last_msr);
+	mct_u232_get_modem_stat(port, &last_msr);
 	spin_lock_irqsave(&priv->lock, flags);
 	priv->last_msr = last_msr;
-	mct_u232_msr_to_state(&priv->control_state, priv->last_msr);
+	mct_u232_msr_to_state(port, &priv->control_state, priv->last_msr);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	retval = usb_submit_urb(port->read_urb, GFP_KERNEL);
@@ -512,7 +508,7 @@ static void mct_u232_dtr_rts(struct usb_serial_port *port, int on)
 			priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
 		control_state = priv->control_state;
 		spin_unlock_irq(&priv->lock);
-		mct_u232_set_modem_ctrl(port->serial, control_state);
+		mct_u232_set_modem_ctrl(port, control_state);
 	}
 	mutex_unlock(&port->serial->disc_mutex);
 }
@@ -532,7 +528,6 @@ static void mct_u232_read_int_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	struct mct_u232_private *priv = usb_get_serial_port_data(port);
-	struct usb_serial *serial = port->serial;
 	struct tty_struct *tty;
 	unsigned char *data = urb->transfer_buffer;
 	int retval;
@@ -547,22 +542,16 @@ static void mct_u232_read_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
-		    __func__, status);
+		dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
+			__func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d",
-		    __func__, status);
+		dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
+			__func__, status);
 		goto exit;
 	}
 
-	if (!serial) {
-		dbg("%s - bad serial pointer, exiting", __func__);
-		return;
-	}
-
-	usb_serial_debug_data(debug, &port->dev, __func__,
-					urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	/*
 	 * Work-a-round: handle the 'usual' bulk-in pipe here
@@ -588,7 +577,7 @@ static void mct_u232_read_int_callback(struct urb *urb)
 	priv->last_msr = data[MCT_U232_MSR_INDEX];
 
 	/* Record Control Line states */
-	mct_u232_msr_to_state(&priv->control_state, priv->last_msr);
+	mct_u232_msr_to_state(port, &priv->control_state, priv->last_msr);
 
 	mct_u232_msr_to_icount(&priv->icount, priv->last_msr);
 
@@ -634,7 +623,7 @@ static void mct_u232_set_termios(struct tty_struct *tty,
 {
 	struct usb_serial *serial = port->serial;
 	struct mct_u232_private *priv = usb_get_serial_port_data(port);
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	unsigned int cflag = termios->c_cflag;
 	unsigned int old_cflag = old_termios->c_cflag;
 	unsigned long flags;
@@ -656,18 +645,18 @@ static void mct_u232_set_termios(struct tty_struct *tty,
 
 	/* reassert DTR and RTS on transition from B0 */
 	if ((old_cflag & CBAUD) == B0) {
-		dbg("%s: baud was B0", __func__);
+		dev_dbg(&port->dev, "%s: baud was B0\n", __func__);
 		control_state |= TIOCM_DTR | TIOCM_RTS;
-		mct_u232_set_modem_ctrl(serial, control_state);
+		mct_u232_set_modem_ctrl(port, control_state);
 	}
 
 	mct_u232_set_baud_rate(tty, serial, port, tty_get_baud_rate(tty));
 
 	if ((cflag & CBAUD) == B0) {
-		dbg("%s: baud is B0", __func__);
+		dev_dbg(&port->dev, "%s: baud is B0\n", __func__);
 		/* Drop RTS and DTR */
 		control_state &= ~(TIOCM_DTR | TIOCM_RTS);
-		mct_u232_set_modem_ctrl(serial, control_state);
+		mct_u232_set_modem_ctrl(port, control_state);
 	}
 
 	/*
@@ -704,7 +693,7 @@ static void mct_u232_set_termios(struct tty_struct *tty,
 	last_lcr |= (cflag & CSTOPB) ?
 		MCT_U232_STOP_BITS_2 : MCT_U232_STOP_BITS_1;
 
-	mct_u232_set_line_ctrl(serial, last_lcr);
+	mct_u232_set_line_ctrl(port, last_lcr);
 
 	/* save off the modified port settings */
 	spin_lock_irqsave(&priv->lock, flags);
@@ -716,7 +705,6 @@ static void mct_u232_set_termios(struct tty_struct *tty,
 static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	struct usb_serial *serial = port->serial;
 	struct mct_u232_private *priv = usb_get_serial_port_data(port);
 	unsigned char lcr;
 	unsigned long flags;
@@ -728,7 +716,7 @@ static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
 		lcr |= MCT_U232_SET_BREAK;
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	mct_u232_set_line_ctrl(serial, lcr);
+	mct_u232_set_line_ctrl(port, lcr);
 } /* mct_u232_break_ctl */
 
 
@@ -750,7 +738,6 @@ static int mct_u232_tiocmset(struct tty_struct *tty,
 			      unsigned int set, unsigned int clear)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	struct usb_serial *serial = port->serial;
 	struct mct_u232_private *priv = usb_get_serial_port_data(port);
 	unsigned int control_state;
 	unsigned long flags;
@@ -769,7 +756,7 @@ static int mct_u232_tiocmset(struct tty_struct *tty,
 
 	priv->control_state = control_state;
 	spin_unlock_irqrestore(&priv->lock, flags);
-	return mct_u232_set_modem_ctrl(serial, control_state);
+	return mct_u232_set_modem_ctrl(port, control_state);
 }
 
 static void mct_u232_throttle(struct tty_struct *tty)
@@ -784,7 +771,7 @@ static void mct_u232_throttle(struct tty_struct *tty)
 		priv->control_state &= ~TIOCM_RTS;
 		control_state = priv->control_state;
 		spin_unlock_irq(&priv->lock);
-		(void) mct_u232_set_modem_ctrl(port->serial, control_state);
+		mct_u232_set_modem_ctrl(port, control_state);
 	} else {
 		spin_unlock_irq(&priv->lock);
 	}
@@ -802,7 +789,7 @@ static void mct_u232_unthrottle(struct tty_struct *tty)
 		priv->control_state |= TIOCM_RTS;
 		control_state = priv->control_state;
 		spin_unlock_irq(&priv->lock);
-		(void) mct_u232_set_modem_ctrl(port->serial, control_state);
+		mct_u232_set_modem_ctrl(port, control_state);
 	} else {
 		spin_unlock_irq(&priv->lock);
 	}
@@ -817,13 +804,13 @@ static int  mct_u232_ioctl(struct tty_struct *tty,
 	struct async_icount cnow, cprev;
 	unsigned long flags;
 
-	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd);
 
 	switch (cmd) {
 
 	case TIOCMIWAIT:
 
-		dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
+		dev_dbg(&port->dev, "%s TIOCMIWAIT", __func__);
 
 		spin_lock_irqsave(&mct_u232_port->lock, flags);
 		cprev = mct_u232_port->icount;
@@ -879,8 +866,8 @@ static int  mct_u232_get_icount(struct tty_struct *tty,
 
 	spin_unlock_irqrestore(&mct_u232_port->lock, flags);
 
-	dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
-		__func__,  port->number, icount->rx, icount->tx);
+	dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n",
+		__func__,  icount->rx, icount->tx);
 	return 0;
 }
 
@@ -889,6 +876,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index d47eb06fe46..0b257ddffbd 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -52,9 +52,6 @@ static struct usb_device_id id_table[] = {
 };
 MODULE_DEVICE_TABLE(usb, id_table);
 
-/* Input parameter constants. */
-static bool debug;
-
 /* UNI-Directional mode commands for device configure */
 #define UNI_CMD_OPEN	0x80
 #define UNI_CMD_CLOSE	0xFF
@@ -130,12 +127,6 @@ static void metrousb_read_int_callback(struct urb *urb)
 
 	/* Set the data read from the usb port into the serial port buffer. */
 	tty = tty_port_tty_get(&port->port);
-	if (!tty) {
-		dev_err(&port->dev, "%s - bad tty pointer - exiting\n",
-			__func__);
-		return;
-	}
-
 	if (tty && urb->actual_length) {
 		/* Loop through the data copying each byte to the tty layer. */
 		tty_insert_flip_string(tty, data, urb->actual_length);
@@ -442,7 +433,3 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Philip Nicastro");
 MODULE_AUTHOR("Aleksey Babahin <tamerlan311@gmail.com>");
 MODULE_DESCRIPTION(DRIVER_DESC);
-
-/* Module input parameters */
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Print debug info (bool 1=on, 0=off)");
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index a07dd3c8cfe..1bf1ad06666 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -71,8 +71,6 @@ struct moschip_port {
 	struct urb		*write_urb_pool[NUM_URBS];
 };
 
-static bool debug;
-
 static struct usb_serial_driver moschip7720_2port_driver;
 
 #define USB_VENDOR_ID_MOSCHIP		0x9710
@@ -281,16 +279,19 @@ static void send_deferred_urbs(unsigned long _mos_parport)
 	int ret_val;
 	unsigned long flags;
 	struct mos7715_parport *mos_parport = (void *)_mos_parport;
-	struct urbtracker *urbtrack;
+	struct urbtracker *urbtrack, *tmp;
 	struct list_head *cursor, *next;
+	struct device *dev;
 
 	/* if release function ran, game over */
 	if (unlikely(mos_parport->serial == NULL))
 		return;
 
+	dev = &mos_parport->serial->dev->dev;
+
 	/* try again to get the mutex */
 	if (!mutex_trylock(&mos_parport->serial->disc_mutex)) {
-		dbg("%s: rescheduling tasklet", __func__);
+		dev_dbg(dev, "%s: rescheduling tasklet\n", __func__);
 		tasklet_schedule(&mos_parport->urb_tasklet);
 		return;
 	}
@@ -305,20 +306,19 @@ static void send_deferred_urbs(unsigned long _mos_parport)
 	if (list_empty(&mos_parport->deferred_urbs)) {
 		spin_unlock_irqrestore(&mos_parport->listlock, flags);
 		mutex_unlock(&mos_parport->serial->disc_mutex);
-		dbg("%s: deferred_urbs list empty", __func__);
+		dev_dbg(dev, "%s: deferred_urbs list empty\n", __func__);
 		return;
 	}
 
 	/* move contents of deferred_urbs list to active_urbs list and submit */
 	list_for_each_safe(cursor, next, &mos_parport->deferred_urbs)
 		list_move_tail(cursor, &mos_parport->active_urbs);
-	list_for_each_entry(urbtrack, &mos_parport->active_urbs,
+	list_for_each_entry_safe(urbtrack, tmp, &mos_parport->active_urbs,
 			    urblist_entry) {
 		ret_val = usb_submit_urb(urbtrack->urb, GFP_ATOMIC);
-		dbg("%s: urb submitted", __func__);
+		dev_dbg(dev, "%s: urb submitted\n", __func__);
 		if (ret_val) {
-			dev_err(&mos_parport->serial->dev->dev,
-				"usb_submit_urb() failed: %d", ret_val);
+			dev_err(dev, "usb_submit_urb() failed: %d\n", ret_val);
 			list_del(&urbtrack->urblist_entry);
 			kref_put(&urbtrack->ref_count, destroy_urbtracker);
 		}
@@ -334,7 +334,7 @@ static void async_complete(struct urb *urb)
 	int status = urb->status;
 
 	if (unlikely(status))
-		dbg("%s - nonzero urb status received: %d", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, status);
 
 	/* remove the urbtracker from the active_urbs list */
 	spin_lock(&urbtrack->mos_parport->listlock);
@@ -389,7 +389,7 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
 			      &mos_parport->deferred_urbs);
 		spin_unlock_irqrestore(&mos_parport->listlock, flags);
 		tasklet_schedule(&mos_parport->urb_tasklet);
-		dbg("tasklet scheduled");
+		dev_dbg(&usbdev->dev, "tasklet scheduled");
 		return 0;
 	}
 
@@ -690,7 +690,7 @@ static int mos7715_parport_init(struct usb_serial *serial)
 	/* allocate and initialize parallel port control struct */
 	mos_parport = kzalloc(sizeof(struct mos7715_parport), GFP_KERNEL);
 	if (mos_parport == NULL) {
-		dbg("mos7715_parport_init: kzalloc failed");
+		dev_dbg(&serial->dev->dev, "%s: kzalloc failed\n", __func__);
 		return -ENOMEM;
 	}
 	mos_parport->msg_pending = false;
@@ -743,6 +743,7 @@ static void mos7720_interrupt_callback(struct urb *urb)
 	int result;
 	int length;
 	int status = urb->status;
+	struct device *dev = &urb->dev->dev;
 	__u8 *data;
 	__u8 sp1;
 	__u8 sp2;
@@ -755,12 +756,10 @@ static void mos7720_interrupt_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-		    status);
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n", __func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-		    status);
+		dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, status);
 		goto exit;
 	}
 
@@ -777,7 +776,7 @@ static void mos7720_interrupt_callback(struct urb *urb)
 	 * 	oneukum 2007-03-14 */
 
 	if (unlikely(length != 4)) {
-		dbg("Wrong data !!!");
+		dev_dbg(dev, "Wrong data !!!\n");
 		return;
 	}
 
@@ -786,31 +785,29 @@ static void mos7720_interrupt_callback(struct urb *urb)
 
 	if ((sp1 | sp2) & 0x01) {
 		/* No Interrupt Pending in both the ports */
-		dbg("No Interrupt !!!");
+		dev_dbg(dev, "No Interrupt !!!\n");
 	} else {
 		switch (sp1 & 0x0f) {
 		case SERIAL_IIR_RLS:
-			dbg("Serial Port 1: Receiver status error or address "
-			    "bit detected in 9-bit mode\n");
+			dev_dbg(dev, "Serial Port 1: Receiver status error or address bit detected in 9-bit mode\n");
 			break;
 		case SERIAL_IIR_CTI:
-			dbg("Serial Port 1: Receiver time out");
+			dev_dbg(dev, "Serial Port 1: Receiver time out\n");
 			break;
 		case SERIAL_IIR_MS:
-			/* dbg("Serial Port 1: Modem status change"); */
+			/* dev_dbg(dev, "Serial Port 1: Modem status change\n"); */
 			break;
 		}
 
 		switch (sp2 & 0x0f) {
 		case SERIAL_IIR_RLS:
-			dbg("Serial Port 2: Receiver status error or address "
-			    "bit detected in 9-bit mode");
+			dev_dbg(dev, "Serial Port 2: Receiver status error or address bit detected in 9-bit mode\n");
 			break;
 		case SERIAL_IIR_CTI:
-			dbg("Serial Port 2: Receiver time out");
+			dev_dbg(dev, "Serial Port 2: Receiver time out\n");
 			break;
 		case SERIAL_IIR_MS:
-			/* dbg("Serial Port 2: Modem status change"); */
+			/* dev_dbg(dev, "Serial Port 2: Modem status change\n"); */
 			break;
 		}
 	}
@@ -818,9 +815,7 @@ static void mos7720_interrupt_callback(struct urb *urb)
 exit:
 	result = usb_submit_urb(urb, GFP_ATOMIC);
 	if (result)
-		dev_err(&urb->dev->dev,
-			"%s - Error %d submitting control urb\n",
-			__func__, result);
+		dev_err(dev, "%s - Error %d submitting control urb\n", __func__, result);
 }
 
 /*
@@ -833,6 +828,7 @@ static void mos7715_interrupt_callback(struct urb *urb)
 	int result;
 	int length;
 	int status = urb->status;
+	struct device *dev = &urb->dev->dev;
 	__u8 *data;
 	__u8 iir;
 
@@ -845,12 +841,10 @@ static void mos7715_interrupt_callback(struct urb *urb)
 	case -ESHUTDOWN:
 	case -ENODEV:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-		    status);
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n", __func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-		    status);
+		dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, status);
 		goto exit;
 	}
 
@@ -864,7 +858,7 @@ static void mos7715_interrupt_callback(struct urb *urb)
 	 * Byte 4: FIFO status for both */
 
 	if (unlikely(length != 4)) {
-		dbg("Wrong data !!!");
+		dev_dbg(dev, "Wrong data !!!\n");
 		return;
 	}
 
@@ -872,14 +866,13 @@ static void mos7715_interrupt_callback(struct urb *urb)
 	if (!(iir & 0x01)) {	/* serial port interrupt pending */
 		switch (iir & 0x0f) {
 		case SERIAL_IIR_RLS:
-			dbg("Serial Port: Receiver status error or address "
-			    "bit detected in 9-bit mode\n");
+			dev_dbg(dev, "Serial Port: Receiver status error or address bit detected in 9-bit mode\n\n");
 			break;
 		case SERIAL_IIR_CTI:
-			dbg("Serial Port: Receiver time out");
+			dev_dbg(dev, "Serial Port: Receiver time out\n");
 			break;
 		case SERIAL_IIR_MS:
-			/* dbg("Serial Port: Modem status change"); */
+			/* dev_dbg(dev, "Serial Port: Modem status change\n"); */
 			break;
 		}
 	}
@@ -897,9 +890,7 @@ static void mos7715_interrupt_callback(struct urb *urb)
 exit:
 	result = usb_submit_urb(urb, GFP_ATOMIC);
 	if (result)
-		dev_err(&urb->dev->dev,
-			"%s - Error %d submitting control urb\n",
-			__func__, result);
+		dev_err(dev, "%s - Error %d submitting control urb\n", __func__, result);
 }
 
 /*
@@ -916,13 +907,13 @@ static void mos7720_bulk_in_callback(struct urb *urb)
 	int status = urb->status;
 
 	if (status) {
-		dbg("nonzero read bulk status received: %d", status);
+		dev_dbg(&urb->dev->dev, "nonzero read bulk status received: %d\n", status);
 		return;
 	}
 
 	port = urb->context;
 
-	dbg("Entering...%s", __func__);
+	dev_dbg(&port->dev, "Entering...%s\n", __func__);
 
 	data = urb->transfer_buffer;
 
@@ -936,8 +927,7 @@ static void mos7720_bulk_in_callback(struct urb *urb)
 	if (port->read_urb->status != -EINPROGRESS) {
 		retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (retval)
-			dbg("usb_submit_urb(read bulk) failed, retval = %d",
-			    retval);
+			dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, retval = %d\n", retval);
 	}
 }
 
@@ -953,13 +943,13 @@ static void mos7720_bulk_out_data_callback(struct urb *urb)
 	int status = urb->status;
 
 	if (status) {
-		dbg("nonzero write bulk status received:%d", status);
+		dev_dbg(&urb->dev->dev, "nonzero write bulk status received:%d\n", status);
 		return;
 	}
 
 	mos7720_port = urb->context;
 	if (!mos7720_port) {
-		dbg("NULL mos7720_port pointer");
+		dev_dbg(&urb->dev->dev, "NULL mos7720_port pointer\n");
 		return ;
 	}
 
@@ -1061,9 +1051,7 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
 	port_number = port->number - port->serial->minor;
 	read_mos_reg(serial, port_number, LSR, &data);
 
-	dbg("SS::%p LSR:%x", mos7720_port, data);
-
-	dbg("Check:Sending Command ..........");
+	dev_dbg(&port->dev, "SS::%p LSR:%x\n", mos7720_port, data);
 
 	write_mos_reg(serial, dummy, SP1_REG, 0x02);
 	write_mos_reg(serial, dummy, SP2_REG, 0x02);
@@ -1122,20 +1110,16 @@ static int mos7720_chars_in_buffer(struct tty_struct *tty)
 	int chars = 0;
 	struct moschip_port *mos7720_port;
 
-	dbg("%s:entering ...........", __func__);
-
 	mos7720_port = usb_get_serial_port_data(port);
-	if (mos7720_port == NULL) {
-		dbg("%s:leaving ...........", __func__);
+	if (mos7720_port == NULL)
 		return 0;
-	}
 
 	for (i = 0; i < NUM_URBS; ++i) {
 		if (mos7720_port->write_urb_pool[i] &&
 		    mos7720_port->write_urb_pool[i]->status == -EINPROGRESS)
 			chars += URB_TRANSFER_BUFFER_SIZE;
 	}
-	dbg("%s - returns %d", __func__, chars);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 }
 
@@ -1145,8 +1129,6 @@ static void mos7720_close(struct usb_serial_port *port)
 	struct moschip_port *mos7720_port;
 	int j;
 
-	dbg("mos7720_close:entering...");
-
 	serial = port->serial;
 
 	mos7720_port = usb_get_serial_port_data(port);
@@ -1166,9 +1148,7 @@ static void mos7720_close(struct usb_serial_port *port)
 
 	/* While closing port, shutdown all bulk read, write  *
 	 * and interrupt read if they exists, otherwise nop   */
-	dbg("Shutdown bulk write");
 	usb_kill_urb(port->write_urb);
-	dbg("Shutdown bulk read");
 	usb_kill_urb(port->read_urb);
 
 	mutex_lock(&serial->disc_mutex);
@@ -1182,8 +1162,6 @@ static void mos7720_close(struct usb_serial_port *port)
 	}
 	mutex_unlock(&serial->disc_mutex);
 	mos7720_port->open = 0;
-
-	dbg("Leaving %s", __func__);
 }
 
 static void mos7720_break(struct tty_struct *tty, int break_state)
@@ -1193,8 +1171,6 @@ static void mos7720_break(struct tty_struct *tty, int break_state)
 	struct usb_serial *serial;
 	struct moschip_port *mos7720_port;
 
-	dbg("Entering %s", __func__);
-
 	serial = port->serial;
 
 	mos7720_port = usb_get_serial_port_data(port);
@@ -1225,13 +1201,9 @@ static int mos7720_write_room(struct tty_struct *tty)
 	int room = 0;
 	int i;
 
-	dbg("%s:entering ...........", __func__);
-
 	mos7720_port = usb_get_serial_port_data(port);
-	if (mos7720_port == NULL) {
-		dbg("%s:leaving ...........", __func__);
+	if (mos7720_port == NULL)
 		return -ENODEV;
-	}
 
 	/* FIXME: Locking */
 	for (i = 0; i < NUM_URBS; ++i) {
@@ -1240,7 +1212,7 @@ static int mos7720_write_room(struct tty_struct *tty)
 			room += URB_TRANSFER_BUFFER_SIZE;
 	}
 
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
 	return room;
 }
 
@@ -1257,15 +1229,11 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
 	struct urb    *urb;
 	const unsigned char *current_position = data;
 
-	dbg("%s:entering ...........", __func__);
-
 	serial = port->serial;
 
 	mos7720_port = usb_get_serial_port_data(port);
-	if (mos7720_port == NULL) {
-		dbg("mos7720_port is NULL");
+	if (mos7720_port == NULL)
 		return -ENODEV;
-	}
 
 	/* try to find a free urb in the list */
 	urb = NULL;
@@ -1274,13 +1242,13 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
 		if (mos7720_port->write_urb_pool[i] &&
 		    mos7720_port->write_urb_pool[i]->status != -EINPROGRESS) {
 			urb = mos7720_port->write_urb_pool[i];
-			dbg("URB:%d", i);
+			dev_dbg(&port->dev, "URB:%d\n", i);
 			break;
 		}
 	}
 
 	if (urb == NULL) {
-		dbg("%s - no more free urbs", __func__);
+		dev_dbg(&port->dev, "%s - no more free urbs\n", __func__);
 		goto exit;
 	}
 
@@ -1296,7 +1264,7 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
 	transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
 
 	memcpy(urb->transfer_buffer, current_position, transfer_size);
-	usb_serial_debug_data(debug, &port->dev, __func__, transfer_size,
+	usb_serial_debug_data(&port->dev, __func__, transfer_size,
 			      urb->transfer_buffer);
 
 	/* fill urb with data and submit  */
@@ -1326,20 +1294,16 @@ static void mos7720_throttle(struct tty_struct *tty)
 	struct moschip_port *mos7720_port;
 	int status;
 
-	dbg("%s- port %d", __func__, port->number);
-
 	mos7720_port = usb_get_serial_port_data(port);
 
 	if (mos7720_port == NULL)
 		return;
 
 	if (!mos7720_port->open) {
-		dbg("port not opened");
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
-	dbg("%s: Entering ..........", __func__);
-
 	/* if we are implementing XON/XOFF, send the stop character */
 	if (I_IXOFF(tty)) {
 		unsigned char stop_char = STOP_CHAR(tty);
@@ -1349,7 +1313,7 @@ static void mos7720_throttle(struct tty_struct *tty)
 	}
 
 	/* if we are implementing RTS/CTS, toggle that line */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		mos7720_port->shadowMCR &= ~UART_MCR_RTS;
 		write_mos_reg(port->serial, port->number - port->serial->minor,
 			      MCR, mos7720_port->shadowMCR);
@@ -1368,12 +1332,10 @@ static void mos7720_unthrottle(struct tty_struct *tty)
 		return;
 
 	if (!mos7720_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
-	dbg("%s: Entering ..........", __func__);
-
 	/* if we are implementing XON/XOFF, send the start character */
 	if (I_IXOFF(tty)) {
 		unsigned char start_char = START_CHAR(tty);
@@ -1383,7 +1345,7 @@ static void mos7720_unthrottle(struct tty_struct *tty)
 	}
 
 	/* if we are implementing RTS/CTS, toggle that line */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		mos7720_port->shadowMCR |= UART_MCR_RTS;
 		write_mos_reg(port->serial, port->number - port->serial->minor,
 			      MCR, mos7720_port->shadowMCR);
@@ -1409,7 +1371,7 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
 	 /***********************************************
 	 *      Init Sequence for higher rates
 	 ***********************************************/
-	dbg("Sending Setting Commands ..........");
+	dev_dbg(&port->dev, "Sending Setting Commands ..........\n");
 	port_number = port->number - port->serial->minor;
 
 	write_mos_reg(serial, port_number, IER, 0x00);
@@ -1478,7 +1440,7 @@ static struct divisor_table_entry divisor_table[] = {
  *	this function calculates the proper baud rate divisor for the specified
  *	baud rate.
  *****************************************************************************/
-static int calc_baud_rate_divisor(int baudrate, int *divisor)
+static int calc_baud_rate_divisor(struct usb_serial_port *port, int baudrate, int *divisor)
 {
 	int i;
 	__u16 custom;
@@ -1486,7 +1448,7 @@ static int calc_baud_rate_divisor(int baudrate, int *divisor)
 	__u16 round;
 
 
-	dbg("%s - %d", __func__, baudrate);
+	dev_dbg(&port->dev, "%s - %d\n", __func__, baudrate);
 
 	for (i = 0; i < ARRAY_SIZE(divisor_table); i++) {
 		if (divisor_table[i].baudrate == baudrate) {
@@ -1508,11 +1470,11 @@ static int calc_baud_rate_divisor(int baudrate, int *divisor)
 			custom++;
 		*divisor = custom;
 
-		dbg("Baud %d = %d", baudrate, custom);
+		dev_dbg(&port->dev, "Baud %d = %d\n", baudrate, custom);
 		return 0;
 	}
 
-	dbg("Baud calculation Failed...");
+	dev_dbg(&port->dev, "Baud calculation Failed...\n");
 	return -EINVAL;
 }
 
@@ -1536,13 +1498,11 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port,
 	port = mos7720_port->port;
 	serial = port->serial;
 
-	dbg("%s: Entering ..........", __func__);
-
 	number = port->number - port->serial->minor;
-	dbg("%s - port = %d, baud = %d", __func__, port->number, baudrate);
+	dev_dbg(&port->dev, "%s - baud = %d\n", __func__, baudrate);
 
 	/* Calculate the Divisor */
-	status = calc_baud_rate_divisor(baudrate, &divisor);
+	status = calc_baud_rate_divisor(port, baudrate, &divisor);
 	if (status) {
 		dev_err(&port->dev, "%s - bad baud rate\n", __func__);
 		return status;
@@ -1591,21 +1551,17 @@ static void change_port_settings(struct tty_struct *tty,
 	serial = port->serial;
 	port_number = port->number - port->serial->minor;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (!mos7720_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
-	dbg("%s: Entering ..........", __func__);
-
 	lData = UART_LCR_WLEN8;
 	lStop = 0x00;	/* 1 stop bit */
 	lParity = 0x00;	/* No parity */
 
-	cflag = tty->termios->c_cflag;
-	iflag = tty->termios->c_iflag;
+	cflag = tty->termios.c_cflag;
+	iflag = tty->termios.c_iflag;
 
 	/* Change the number of bits */
 	switch (cflag & CSIZE) {
@@ -1633,14 +1589,14 @@ static void change_port_settings(struct tty_struct *tty,
 	if (cflag & PARENB) {
 		if (cflag & PARODD) {
 			lParity = UART_LCR_PARITY;
-			dbg("%s - parity = odd", __func__);
+			dev_dbg(&port->dev, "%s - parity = odd\n", __func__);
 		} else {
 			lParity = (UART_LCR_EPAR | UART_LCR_PARITY);
-			dbg("%s - parity = even", __func__);
+			dev_dbg(&port->dev, "%s - parity = even\n", __func__);
 		}
 
 	} else {
-		dbg("%s - parity = none", __func__);
+		dev_dbg(&port->dev, "%s - parity = none\n", __func__);
 	}
 
 	if (cflag & CMSPAR)
@@ -1649,10 +1605,10 @@ static void change_port_settings(struct tty_struct *tty,
 	/* Change the Stop bit */
 	if (cflag & CSTOPB) {
 		lStop = UART_LCR_STOP;
-		dbg("%s - stop bits = 2", __func__);
+		dev_dbg(&port->dev, "%s - stop bits = 2\n", __func__);
 	} else {
 		lStop = 0x00;
-		dbg("%s - stop bits = 1", __func__);
+		dev_dbg(&port->dev, "%s - stop bits = 1\n", __func__);
 	}
 
 #define LCR_BITS_MASK		0x03	/* Mask for bits/char field */
@@ -1698,7 +1654,7 @@ static void change_port_settings(struct tty_struct *tty,
 	baud = tty_get_baud_rate(tty);
 	if (!baud) {
 		/* pick a default, any default... */
-		dbg("Picked default baud...");
+		dev_dbg(&port->dev, "Picked default baud...\n");
 		baud = 9600;
 	}
 
@@ -1709,7 +1665,7 @@ static void change_port_settings(struct tty_struct *tty,
 		return;
 	}
 
-	dbg("%s - baud rate = %d", __func__, baud);
+	dev_dbg(&port->dev, "%s - baud rate = %d\n", __func__, baud);
 	status = send_cmd_write_baud_rate(mos7720_port, baud);
 	/* FIXME: needs to write actual resulting baud back not just
 	   blindly do so */
@@ -1721,8 +1677,7 @@ static void change_port_settings(struct tty_struct *tty,
 	if (port->read_urb->status != -EINPROGRESS) {
 		status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (status)
-			dbg("usb_submit_urb(read bulk) failed, status = %d",
-			    status);
+			dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, status = %d\n", status);
 	}
 }
 
@@ -1747,23 +1702,19 @@ static void mos7720_set_termios(struct tty_struct *tty,
 		return;
 
 	if (!mos7720_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
-	dbg("%s\n", "setting termios - ASPIRE");
+	dev_dbg(&port->dev, "setting termios - ASPIRE\n");
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
-	dbg("%s - cflag %08x iflag %08x", __func__,
-	    tty->termios->c_cflag,
-	    RELEVANT_IFLAG(tty->termios->c_iflag));
+	dev_dbg(&port->dev, "%s - cflag %08x iflag %08x\n", __func__,
+		tty->termios.c_cflag, RELEVANT_IFLAG(tty->termios.c_iflag));
 
-	dbg("%s - old cflag %08x old iflag %08x", __func__,
-	    old_termios->c_cflag,
-	    RELEVANT_IFLAG(old_termios->c_iflag));
-
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(&port->dev, "%s - old cflag %08x old iflag %08x\n", __func__,
+		old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
 
 	/* change the port settings to the new ones specified */
 	change_port_settings(tty, mos7720_port, old_termios);
@@ -1771,8 +1722,7 @@ static void mos7720_set_termios(struct tty_struct *tty,
 	if (port->read_urb->status != -EINPROGRESS) {
 		status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (status)
-			dbg("usb_submit_urb(read bulk) failed, status = %d",
-			    status);
+			dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, status = %d\n", status);
 	}
 }
 
@@ -1800,7 +1750,7 @@ static int get_lsr_info(struct tty_struct *tty,
 		read_mos_reg(port->serial, port_number, LSR, &data);
 		if ((data & (UART_LSR_TEMT | UART_LSR_THRE))
 					== (UART_LSR_TEMT | UART_LSR_THRE)) {
-			dbg("%s -- Empty", __func__);
+			dev_dbg(&port->dev, "%s -- Empty\n", __func__);
 			result = TIOCSER_TEMT;
 		}
 	}
@@ -1817,8 +1767,6 @@ static int mos7720_tiocmget(struct tty_struct *tty)
 	unsigned int mcr ;
 	unsigned int msr ;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	mcr = mos7720_port->shadowMCR;
 	msr = mos7720_port->shadowMSR;
 
@@ -1829,8 +1777,6 @@ static int mos7720_tiocmget(struct tty_struct *tty)
 	  | ((msr & UART_MSR_RI)    ? TIOCM_RI :  0)   /* 0x080 */
 	  | ((msr & UART_MSR_DSR)   ? TIOCM_DSR : 0);  /* 0x100 */
 
-	dbg("%s -- %x", __func__, result);
-
 	return result;
 }
 
@@ -1840,8 +1786,6 @@ static int mos7720_tiocmset(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	struct moschip_port *mos7720_port = usb_get_serial_port_data(port);
 	unsigned int mcr ;
-	dbg("%s - port %d", __func__, port->number);
-	dbg("he was at tiocmset");
 
 	mcr = mos7720_port->shadowMCR;
 
@@ -1888,8 +1832,8 @@ static int mos7720_get_icount(struct tty_struct *tty,
 	icount->brk = cnow.brk;
 	icount->buf_overrun = cnow.buf_overrun;
 
-	dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__,
-		port->number, icount->rx, icount->tx);
+	dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n", __func__,
+		icount->rx, icount->tx);
 	return 0;
 }
 
@@ -1975,29 +1919,28 @@ static int mos7720_ioctl(struct tty_struct *tty,
 	if (mos7720_port == NULL)
 		return -ENODEV;
 
-	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%x", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCSERGETLSR:
-		dbg("%s (%d) TIOCSERGETLSR", __func__,  port->number);
+		dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
 		return get_lsr_info(tty, mos7720_port,
 					(unsigned int __user *)arg);
 
 	/* FIXME: These should be using the mode methods */
 	case TIOCMBIS:
 	case TIOCMBIC:
-		dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET",
-					__func__, port->number);
+		dev_dbg(&port->dev, "%s TIOCMSET/TIOCMBIC/TIOCMSET\n", __func__);
 		return set_modem_info(mos7720_port, cmd,
 				      (unsigned int __user *)arg);
 
 	case TIOCGSERIAL:
-		dbg("%s (%d) TIOCGSERIAL", __func__,  port->number);
+		dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
 		return get_serial_info(mos7720_port,
 				       (struct serial_struct __user *)arg);
 
 	case TIOCMIWAIT:
-		dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
+		dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__);
 		cprev = mos7720_port->icount;
 		while (1) {
 			if (signal_pending(current))
@@ -2030,13 +1973,6 @@ static int mos7720_startup(struct usb_serial *serial)
 	u16 product;
 	int ret_val;
 
-	dbg("%s: Entering ..........", __func__);
-
-	if (!serial) {
-		dbg("Invalid Handler");
-		return -ENODEV;
-	}
-
 	product = le16_to_cpu(serial->dev->descriptor.idProduct);
 	dev = serial->dev;
 
@@ -2081,8 +2017,8 @@ static int mos7720_startup(struct usb_serial *serial)
 		mos7720_port->port = serial->port[i];
 		usb_set_serial_port_data(serial->port[i], mos7720_port);
 
-		dbg("port number is %d", serial->port[i]->number);
-		dbg("serial number is %d", serial->minor);
+		dev_dbg(&dev->dev, "port number is %d\n", serial->port[i]->number);
+		dev_dbg(&dev->dev, "serial number is %d\n", serial->minor);
 	}
 
 
@@ -2106,7 +2042,7 @@ static int mos7720_startup(struct usb_serial *serial)
 #endif
 	/* LSR For Port 1 */
 	read_mos_reg(serial, 0, LSR, &data);
-	dbg("LSR:%x", data);
+	dev_dbg(&dev->dev, "LSR:%x\n", data);
 
 	return 0;
 }
@@ -2195,6 +2131,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 57eca244842..d6d4eeca8c6 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -82,8 +82,7 @@
  * Defines used for sending commands to port
  */
 
-#define WAIT_FOR_EVER   (HZ * 0)	/* timeout urb is wait for ever */
-#define MOS_WDR_TIMEOUT (HZ * 5)	/* default urb timeout */
+#define MOS_WDR_TIMEOUT		5000	/* default urb timeout */
 
 #define MOS_PORT1       0x0200
 #define MOS_PORT2       0x0300
@@ -253,8 +252,6 @@ struct moschip_port {
 	struct timer_list led_timer2;	/* Timer for LED off */
 };
 
-static bool debug;
-
 /*
  * mos7840_set_reg_sync
  * 	To set the Control register by calling usb_fill_control_urb function
@@ -266,7 +263,7 @@ static int mos7840_set_reg_sync(struct usb_serial_port *port, __u16 reg,
 {
 	struct usb_device *dev = port->serial->dev;
 	val = val & 0x00ff;
-	dbg("mos7840_set_reg_sync offset is %x, value %x", reg, val);
+	dev_dbg(&port->dev, "mos7840_set_reg_sync offset is %x, value %x\n", reg, val);
 
 	return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ,
 			       MCS_WR_RTYPE, val, reg, NULL, 0,
@@ -294,7 +291,7 @@ static int mos7840_get_reg_sync(struct usb_serial_port *port, __u16 reg,
 			      MCS_RD_RTYPE, 0, reg, buf, VENDOR_READ_LENGTH,
 			      MOS_WDR_TIMEOUT);
 	*val = buf[0];
-	dbg("mos7840_get_reg_sync offset is %x, return val %x", reg, *val);
+	dev_dbg(&port->dev, "%s offset is %x, return val %x\n", __func__, reg, *val);
 
 	kfree(buf);
 	return ret;
@@ -317,21 +314,16 @@ static int mos7840_set_uart_reg(struct usb_serial_port *port, __u16 reg,
 	if (port->serial->num_ports == 4) {
 		val |= (((__u16) port->number -
 				(__u16) (port->serial->minor)) + 1) << 8;
-		dbg("mos7840_set_uart_reg application number is %x", val);
 	} else {
 		if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
 			val |= (((__u16) port->number -
 			      (__u16) (port->serial->minor)) + 1) << 8;
-			dbg("mos7840_set_uart_reg application number is %x",
-			    val);
 		} else {
-			val |=
-			    (((__u16) port->number -
+			val |= (((__u16) port->number -
 			      (__u16) (port->serial->minor)) + 2) << 8;
-			dbg("mos7840_set_uart_reg application number is %x",
-			    val);
 		}
 	}
+	dev_dbg(&port->dev, "%s application number is %x\n", __func__, val);
 	return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ,
 			       MCS_WR_RTYPE, val, reg, NULL, 0,
 			       MOS_WDR_TIMEOUT);
@@ -355,27 +347,21 @@ static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg,
 	if (!buf)
 		return -ENOMEM;
 
-	/* dbg("application number is %4x",
-	    (((__u16)port->number - (__u16)(port->serial->minor))+1)<<8); */
 	/* Wval  is same as application number */
 	if (port->serial->num_ports == 4) {
 		Wval =
 		    (((__u16) port->number - (__u16) (port->serial->minor)) +
 		     1) << 8;
-		dbg("mos7840_get_uart_reg application number is %x", Wval);
 	} else {
 		if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
 			Wval = (((__u16) port->number -
 			      (__u16) (port->serial->minor)) + 1) << 8;
-			dbg("mos7840_get_uart_reg application number is %x",
-			    Wval);
 		} else {
 			Wval = (((__u16) port->number -
 			      (__u16) (port->serial->minor)) + 2) << 8;
-			dbg("mos7840_get_uart_reg application number is %x",
-			    Wval);
 		}
 	}
+	dev_dbg(&port->dev, "%s application number is %x\n", __func__, Wval);
 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
 			      MCS_RD_RTYPE, Wval, reg, buf, VENDOR_READ_LENGTH,
 			      MOS_WDR_TIMEOUT);
@@ -385,14 +371,13 @@ static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg,
 	return ret;
 }
 
-static void mos7840_dump_serial_port(struct moschip_port *mos7840_port)
+static void mos7840_dump_serial_port(struct usb_serial_port *port,
+				     struct moschip_port *mos7840_port)
 {
 
-	dbg("***************************************");
-	dbg("SpRegOffset is %2x", mos7840_port->SpRegOffset);
-	dbg("ControlRegOffset is %2x", mos7840_port->ControlRegOffset);
-	dbg("DCRRegOffset is %2x", mos7840_port->DcrRegOffset);
-	dbg("***************************************");
+	dev_dbg(&port->dev, "SpRegOffset is %2x\n", mos7840_port->SpRegOffset);
+	dev_dbg(&port->dev, "ControlRegOffset is %2x\n", mos7840_port->ControlRegOffset);
+	dev_dbg(&port->dev, "DCRRegOffset is %2x\n", mos7840_port->DcrRegOffset);
 
 }
 
@@ -451,8 +436,6 @@ static void mos7840_handle_new_lsr(struct moschip_port *port, __u8 new_lsr)
 {
 	struct async_icount *icount;
 
-	dbg("%s - %02x", __func__, new_lsr);
-
 	if (new_lsr & SERIAL_LSR_BI) {
 		/*
 		 * Parity and Framing errors only count if they
@@ -493,6 +476,7 @@ static void mos7840_control_callback(struct urb *urb)
 {
 	unsigned char *data;
 	struct moschip_port *mos7840_port;
+	struct device *dev = &urb->dev->dev;
 	__u8 regval = 0x0;
 	int result = 0;
 	int status = urb->status;
@@ -507,21 +491,19 @@ static void mos7840_control_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-		    status);
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n", __func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-		    status);
+		dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, status);
 		goto exit;
 	}
 
-	dbg("%s urb buffer size is %d", __func__, urb->actual_length);
-	dbg("%s mos7840_port->MsrLsr is %d port %d", __func__,
-	    mos7840_port->MsrLsr, mos7840_port->port_num);
+	dev_dbg(dev, "%s urb buffer size is %d\n", __func__, urb->actual_length);
+	dev_dbg(dev, "%s mos7840_port->MsrLsr is %d port %d\n", __func__,
+		mos7840_port->MsrLsr, mos7840_port->port_num);
 	data = urb->transfer_buffer;
 	regval = (__u8) data[0];
-	dbg("%s data is %x", __func__, regval);
+	dev_dbg(dev, "%s data is %x\n", __func__, regval);
 	if (mos7840_port->MsrLsr == 0)
 		mos7840_handle_new_msr(mos7840_port, regval);
 	else if (mos7840_port->MsrLsr == 1)
@@ -533,8 +515,7 @@ exit:
 		result = usb_submit_urb(mos7840_port->int_urb, GFP_ATOMIC);
 	spin_unlock(&mos7840_port->pool_lock);
 	if (result) {
-		dev_err(&urb->dev->dev,
-			"%s - Error %d submitting interrupt urb\n",
+		dev_err(dev, "%s - Error %d submitting interrupt urb\n",
 			__func__, result);
 	}
 }
@@ -571,12 +552,12 @@ static void mos7840_set_led_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* This urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-			urb->status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d",
+			__func__, urb->status);
 		break;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-			urb->status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d",
+			__func__, urb->status);
 	}
 }
 
@@ -651,12 +632,12 @@ static void mos7840_interrupt_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __func__,
-		    status);
+		dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
+			__func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __func__,
-		    status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n",
+			__func__, status);
 		goto exit;
 	}
 
@@ -673,7 +654,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
 	 * Byte 5 FIFO status for both */
 
 	if (length && length > 5) {
-		dbg("%s", "Wrong data !!!");
+		dev_dbg(&urb->dev->dev, "%s", "Wrong data !!!\n");
 		return;
 	}
 
@@ -690,17 +671,17 @@ static void mos7840_interrupt_callback(struct urb *urb)
 		      (__u16) (serial->minor)) + 1) << 8;
 		if (mos7840_port->open) {
 			if (sp[i] & 0x01) {
-				dbg("SP%d No Interrupt !!!", i);
+				dev_dbg(&urb->dev->dev, "SP%d No Interrupt !!!\n", i);
 			} else {
 				switch (sp[i] & 0x0f) {
 				case SERIAL_IIR_RLS:
-					dbg("Serial Port %d: Receiver status error or ", i);
-					dbg("address bit detected in 9-bit mode");
+					dev_dbg(&urb->dev->dev, "Serial Port %d: Receiver status error or \n", i);
+					dev_dbg(&urb->dev->dev, "address bit detected in 9-bit mode\n");
 					mos7840_port->MsrLsr = 1;
 					wreg = LINE_STATUS_REGISTER;
 					break;
 				case SERIAL_IIR_MS:
-					dbg("Serial Port %d: Modem status change", i);
+					dev_dbg(&urb->dev->dev, "Serial Port %d: Modem status change\n", i);
 					mos7840_port->MsrLsr = 0;
 					wreg = MODEM_STATUS_REGISTER;
 					break;
@@ -732,11 +713,11 @@ static int mos7840_port_paranoia_check(struct usb_serial_port *port,
 				       const char *function)
 {
 	if (!port) {
-		dbg("%s - port == NULL", function);
+		pr_debug("%s - port == NULL\n", function);
 		return -1;
 	}
 	if (!port->serial) {
-		dbg("%s - port->serial == NULL", function);
+		pr_debug("%s - port->serial == NULL\n", function);
 		return -1;
 	}
 
@@ -748,11 +729,11 @@ static int mos7840_serial_paranoia_check(struct usb_serial *serial,
 					 const char *function)
 {
 	if (!serial) {
-		dbg("%s - serial == NULL", function);
+		pr_debug("%s - serial == NULL\n", function);
 		return -1;
 	}
 	if (!serial->type) {
-		dbg("%s - serial->type == NULL!", function);
+		pr_debug("%s - serial->type == NULL!\n", function);
 		return -1;
 	}
 
@@ -791,49 +772,44 @@ static void mos7840_bulk_in_callback(struct urb *urb)
 	int status = urb->status;
 
 	mos7840_port = urb->context;
-	if (!mos7840_port) {
-		dbg("%s", "NULL mos7840_port pointer");
+	if (!mos7840_port)
 		return;
-	}
 
 	if (status) {
-		dbg("nonzero read bulk status received: %d", status);
+		dev_dbg(&urb->dev->dev, "nonzero read bulk status received: %d\n", status);
 		mos7840_port->read_urb_busy = false;
 		return;
 	}
 
-	port = (struct usb_serial_port *)mos7840_port->port;
+	port = mos7840_port->port;
 	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Port Paranoia failed");
 		mos7840_port->read_urb_busy = false;
 		return;
 	}
 
 	serial = mos7840_get_usb_serial(port, __func__);
 	if (!serial) {
-		dbg("%s", "Bad serial pointer");
 		mos7840_port->read_urb_busy = false;
 		return;
 	}
 
 	data = urb->transfer_buffer;
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	if (urb->actual_length) {
 		tty = tty_port_tty_get(&mos7840_port->port->port);
 		if (tty) {
 			tty_insert_flip_string(tty, data, urb->actual_length);
-			dbg(" %s ", data);
 			tty_flip_buffer_push(tty);
 			tty_kref_put(tty);
 		}
 		mos7840_port->icount.rx += urb->actual_length;
 		smp_wmb();
-		dbg("mos7840_port->icount.rx is %d:",
-		    mos7840_port->icount.rx);
+		dev_dbg(&port->dev, "mos7840_port->icount.rx is %d:\n", mos7840_port->icount.rx);
 	}
 
 	if (!mos7840_port->read_urb) {
-		dbg("%s", "URB KILLED !!!");
+		dev_dbg(&port->dev, "%s", "URB KILLED !!!\n");
 		mos7840_port->read_urb_busy = false;
 		return;
 	}
@@ -851,7 +827,7 @@ static void mos7840_bulk_in_callback(struct urb *urb)
 	retval = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
 
 	if (retval) {
-		dbg("usb_submit_urb(read bulk) failed, retval = %d", retval);
+		dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, retval = %d\n", retval);
 		mos7840_port->read_urb_busy = false;
 	}
 }
@@ -865,11 +841,13 @@ static void mos7840_bulk_in_callback(struct urb *urb)
 static void mos7840_bulk_out_data_callback(struct urb *urb)
 {
 	struct moschip_port *mos7840_port;
+	struct usb_serial_port *port;
 	struct tty_struct *tty;
 	int status = urb->status;
 	int i;
 
 	mos7840_port = urb->context;
+	port = mos7840_port->port;
 	spin_lock(&mos7840_port->pool_lock);
 	for (i = 0; i < NUM_URBS; i++) {
 		if (urb == mos7840_port->write_urb_pool[i]) {
@@ -880,16 +858,14 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
 	spin_unlock(&mos7840_port->pool_lock);
 
 	if (status) {
-		dbg("nonzero write bulk status received:%d", status);
+		dev_dbg(&port->dev, "nonzero write bulk status received:%d\n", status);
 		return;
 	}
 
-	if (mos7840_port_paranoia_check(mos7840_port->port, __func__)) {
-		dbg("%s", "Port Paranoia failed");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
 
-	tty = tty_port_tty_get(&mos7840_port->port->port);
+	tty = tty_port_tty_get(&port->port);
 	if (tty && mos7840_port->open)
 		tty_wakeup(tty);
 	tty_kref_put(tty);
@@ -930,17 +906,13 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	struct moschip_port *mos7840_port;
 	struct moschip_port *port0;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Port Paranoia failed");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return -ENODEV;
-	}
 
 	serial = port->serial;
 
-	if (mos7840_serial_paranoia_check(serial, __func__)) {
-		dbg("%s", "Serial Paranoia failed");
+	if (mos7840_serial_paranoia_check(serial, __func__))
 		return -ENODEV;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
 	port0 = mos7840_get_port_private(serial->port[0]);
@@ -991,20 +963,20 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	Data = 0x0;
 	status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data);
 	if (status < 0) {
-		dbg("Reading Spreg failed");
+		dev_dbg(&port->dev, "Reading Spreg failed\n");
 		return -1;
 	}
 	Data |= 0x80;
 	status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
 	if (status < 0) {
-		dbg("writing Spreg failed");
+		dev_dbg(&port->dev, "writing Spreg failed\n");
 		return -1;
 	}
 
 	Data &= ~0x80;
 	status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
 	if (status < 0) {
-		dbg("writing Spreg failed");
+		dev_dbg(&port->dev, "writing Spreg failed\n");
 		return -1;
 	}
 	/* End of block to be checked */
@@ -1013,7 +985,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	status = mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset,
 									&Data);
 	if (status < 0) {
-		dbg("Reading Controlreg failed");
+		dev_dbg(&port->dev, "Reading Controlreg failed\n");
 		return -1;
 	}
 	Data |= 0x08;		/* Driver done bit */
@@ -1021,7 +993,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	status = mos7840_set_reg_sync(port,
 				mos7840_port->ControlRegOffset, Data);
 	if (status < 0) {
-		dbg("writing Controlreg failed");
+		dev_dbg(&port->dev, "writing Controlreg failed\n");
 		return -1;
 	}
 	/* do register settings here */
@@ -1032,21 +1004,21 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	Data = 0x00;
 	status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
 	if (status < 0) {
-		dbg("disabling interrupts failed");
+		dev_dbg(&port->dev, "disabling interrupts failed\n");
 		return -1;
 	}
 	/* Set FIFO_CONTROL_REGISTER to the default value */
 	Data = 0x00;
 	status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
 	if (status < 0) {
-		dbg("Writing FIFO_CONTROL_REGISTER  failed");
+		dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER  failed\n");
 		return -1;
 	}
 
 	Data = 0xcf;
 	status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
 	if (status < 0) {
-		dbg("Writing FIFO_CONTROL_REGISTER  failed");
+		dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER  failed\n");
 		return -1;
 	}
 
@@ -1143,12 +1115,12 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	 * (can't set it up in mos7840_startup as the  *
 	 * structures were not set up at that time.)   */
 
-	dbg("port number is %d", port->number);
-	dbg("serial number is %d", port->serial->minor);
-	dbg("Bulkin endpoint is %d", port->bulk_in_endpointAddress);
-	dbg("BulkOut endpoint is %d", port->bulk_out_endpointAddress);
-	dbg("Interrupt endpoint is %d", port->interrupt_in_endpointAddress);
-	dbg("port's number in the device is %d", mos7840_port->port_num);
+	dev_dbg(&port->dev, "port number is %d\n", port->number);
+	dev_dbg(&port->dev, "serial number is %d\n", port->serial->minor);
+	dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
+	dev_dbg(&port->dev, "BulkOut endpoint is %d\n", port->bulk_out_endpointAddress);
+	dev_dbg(&port->dev, "Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress);
+	dev_dbg(&port->dev, "port's number in the device is %d\n", mos7840_port->port_num);
 	mos7840_port->read_urb = port->read_urb;
 
 	/* set up our bulk in urb */
@@ -1172,8 +1144,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 			mos7840_bulk_in_callback, mos7840_port);
 	}
 
-	dbg("mos7840_open: bulkin endpoint is %d",
-	    port->bulk_in_endpointAddress);
+	dev_dbg(&port->dev, "%s: bulkin endpoint is %d\n", __func__, port->bulk_in_endpointAddress);
 	mos7840_port->read_urb_busy = true;
 	response = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL);
 	if (response) {
@@ -1198,9 +1169,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
 	mos7840_port->icount.tx = 0;
 	mos7840_port->icount.rx = 0;
 
-	dbg("usb_serial serial:%p       mos7840_port:%p\n      usb_serial_port port:%p",
-				serial, mos7840_port, port);
-
 	return 0;
 }
 
@@ -1222,21 +1190,22 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty)
 	unsigned long flags;
 	struct moschip_port *mos7840_port;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return 0;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
 	if (mos7840_port == NULL)
 		return 0;
 
 	spin_lock_irqsave(&mos7840_port->pool_lock, flags);
-	for (i = 0; i < NUM_URBS; ++i)
-		if (mos7840_port->busy[i])
-			chars += URB_TRANSFER_BUFFER_SIZE;
+	for (i = 0; i < NUM_URBS; ++i) {
+		if (mos7840_port->busy[i]) {
+			struct urb *urb = mos7840_port->write_urb_pool[i];
+			chars += urb->transfer_buffer_length;
+		}
+	}
 	spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
-	dbg("%s - returns %d", __func__, chars);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 
 }
@@ -1254,16 +1223,12 @@ static void mos7840_close(struct usb_serial_port *port)
 	int j;
 	__u16 Data;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Port Paranoia failed");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
 
 	serial = mos7840_get_usb_serial(port, __func__);
-	if (!serial) {
-		dbg("%s", "Serial Paranoia failed");
+	if (!serial)
 		return;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
 	port0 = mos7840_get_port_private(serial->port[0]);
@@ -1289,27 +1254,26 @@ static void mos7840_close(struct usb_serial_port *port)
 	 * and interrupt read if they exists                  */
 	if (serial->dev) {
 		if (mos7840_port->write_urb) {
-			dbg("%s", "Shutdown bulk write");
+			dev_dbg(&port->dev, "%s", "Shutdown bulk write\n");
 			usb_kill_urb(mos7840_port->write_urb);
 		}
 		if (mos7840_port->read_urb) {
-			dbg("%s", "Shutdown bulk read");
+			dev_dbg(&port->dev, "%s", "Shutdown bulk read\n");
 			usb_kill_urb(mos7840_port->read_urb);
 			mos7840_port->read_urb_busy = false;
 		}
 		if ((&mos7840_port->control_urb)) {
-			dbg("%s", "Shutdown control read");
+			dev_dbg(&port->dev, "%s", "Shutdown control read\n");
 			/*/      usb_kill_urb (mos7840_port->control_urb); */
 		}
 	}
 /*      if(mos7840_port->ctrl_buf != NULL) */
 /*              kfree(mos7840_port->ctrl_buf); */
 	port0->open_ports--;
-	dbg("mos7840_num_open_ports in close%d:in port%d",
-	    port0->open_ports, port->number);
+	dev_dbg(&port->dev, "%s in close%d:in port%d\n", __func__, port0->open_ports, port->number);
 	if (port0->open_ports == 0) {
 		if (serial->port[0]->interrupt_in_urb) {
-			dbg("%s", "Shutdown interrupt_in_urb");
+			dev_dbg(&port->dev, "Shutdown interrupt_in_urb\n");
 			usb_kill_urb(serial->port[0]->interrupt_in_urb);
 		}
 	}
@@ -1344,7 +1308,7 @@ static void mos7840_close(struct usb_serial_port *port)
 static void mos7840_block_until_chase_response(struct tty_struct *tty,
 					struct moschip_port *mos7840_port)
 {
-	int timeout = 1 * HZ;
+	int timeout = msecs_to_jiffies(1000);
 	int wait = 10;
 	int count;
 
@@ -1361,7 +1325,7 @@ static void mos7840_block_until_chase_response(struct tty_struct *tty,
 		/* No activity.. count down section */
 		wait--;
 		if (wait == 0) {
-			dbg("%s - TIMEOUT", __func__);
+			dev_dbg(&mos7840_port->port->dev, "%s - TIMEOUT\n", __func__);
 			return;
 		} else {
 			/* Reset timeout value back to seconds */
@@ -1382,16 +1346,12 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
 	struct usb_serial *serial;
 	struct moschip_port *mos7840_port;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Port Paranoia failed");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
 
 	serial = mos7840_get_usb_serial(port, __func__);
-	if (!serial) {
-		dbg("%s", "Serial Paranoia failed");
+	if (!serial)
 		return;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
 
@@ -1409,8 +1369,7 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
 
 	/* FIXME: no locking on shadowLCR anywhere in driver */
 	mos7840_port->shadowLCR = data;
-	dbg("mcs7840_break mos7840_port->shadowLCR is %x",
-	    mos7840_port->shadowLCR);
+	dev_dbg(&port->dev, "%s mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR);
 	mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER,
 			     mos7840_port->shadowLCR);
 }
@@ -1431,17 +1390,12 @@ static int mos7840_write_room(struct tty_struct *tty)
 	unsigned long flags;
 	struct moschip_port *mos7840_port;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
-		dbg("%s", " mos7840_write_room:leaving ...........");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return -1;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
-	if (mos7840_port == NULL) {
-		dbg("%s", "mos7840_break:leaving ...........");
+	if (mos7840_port == NULL)
 		return -1;
-	}
 
 	spin_lock_irqsave(&mos7840_port->pool_lock, flags);
 	for (i = 0; i < NUM_URBS; ++i) {
@@ -1451,7 +1405,7 @@ static int mos7840_write_room(struct tty_struct *tty)
 	spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
 
 	room = (room == 0) ? 0 : room - URB_TRANSFER_BUFFER_SIZE + 1;
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&mos7840_port->port->dev, "%s - returns %d\n", __func__, room);
 	return room;
 
 }
@@ -1484,9 +1438,8 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
 	Data = 0x00;
 	status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
 	mos7840_port->shadowLCR = Data;
-	dbg("mos7840_write: LINE_CONTROL_REGISTER is %x", Data);
-	dbg("mos7840_write: mos7840_port->shadowLCR is %x",
-	    mos7840_port->shadowLCR);
+	dev_dbg(&port->dev, "%s: LINE_CONTROL_REGISTER is %x\n", __func__, Data);
+	dev_dbg(&port->dev, "%s: mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR);
 
 	/* Data = 0x03; */
 	/* status = mos7840_set_uart_reg(port,LINE_CONTROL_REGISTER,Data); */
@@ -1499,34 +1452,27 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
 	/* status = mos7840_set_uart_reg(port,DIVISOR_LATCH_LSB,Data); */
 	Data = 0x00;
 	status = mos7840_get_uart_reg(port, DIVISOR_LATCH_LSB, &Data);
-	dbg("mos7840_write:DLL value is %x", Data);
+	dev_dbg(&port->dev, "%s: DLL value is %x\n", __func__, Data);
 
 	Data = 0x0;
 	status = mos7840_get_uart_reg(port, DIVISOR_LATCH_MSB, &Data);
-	dbg("mos7840_write:DLM value is %x", Data);
+	dev_dbg(&port->dev, "%s: DLM value is %x\n", __func__, Data);
 
 	Data = Data & ~SERIAL_LCR_DLAB;
-	dbg("mos7840_write: mos7840_port->shadowLCR is %x",
-	    mos7840_port->shadowLCR);
+	dev_dbg(&port->dev, "%s: mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR);
 	status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
 #endif
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Port Paranoia failed");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return -1;
-	}
 
 	serial = port->serial;
-	if (mos7840_serial_paranoia_check(serial, __func__)) {
-		dbg("%s", "Serial Paranoia failed");
+	if (mos7840_serial_paranoia_check(serial, __func__))
 		return -1;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
-	if (mos7840_port == NULL) {
-		dbg("%s", "mos7840_port is NULL");
+	if (mos7840_port == NULL)
 		return -1;
-	}
 
 	/* try to find a free urb in the list */
 	urb = NULL;
@@ -1536,14 +1482,14 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
 		if (!mos7840_port->busy[i]) {
 			mos7840_port->busy[i] = 1;
 			urb = mos7840_port->write_urb_pool[i];
-			dbg("URB:%d", i);
+			dev_dbg(&port->dev, "URB:%d\n", i);
 			break;
 		}
 	}
 	spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
 
 	if (urb == NULL) {
-		dbg("%s - no more free urbs", __func__);
+		dev_dbg(&port->dev, "%s - no more free urbs\n", __func__);
 		goto exit;
 	}
 
@@ -1583,7 +1529,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
 	}
 
 	data1 = urb->transfer_buffer;
-	dbg("bulkout endpoint is %d", port->bulk_out_endpointAddress);
+	dev_dbg(&port->dev, "bulkout endpoint is %d\n", port->bulk_out_endpointAddress);
 
 	/* Turn on LED */
 	if (mos7840_port->has_led && !mos7840_port->led_flag) {
@@ -1606,7 +1552,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
 	bytes_sent = transfer_size;
 	mos7840_port->icount.tx += transfer_size;
 	smp_wmb();
-	dbg("mos7840_port->icount.tx is %d:", mos7840_port->icount.tx);
+	dev_dbg(&port->dev, "mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx);
 exit:
 	return bytes_sent;
 
@@ -1624,12 +1570,8 @@ static void mos7840_throttle(struct tty_struct *tty)
 	struct moschip_port *mos7840_port;
 	int status;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
-
-	dbg("- port %d", port->number);
 
 	mos7840_port = mos7840_get_port_private(port);
 
@@ -1637,7 +1579,7 @@ static void mos7840_throttle(struct tty_struct *tty)
 		return;
 
 	if (!mos7840_port->open) {
-		dbg("%s", "port not opened");
+		dev_dbg(&port->dev, "%s", "port not opened\n");
 		return;
 	}
 
@@ -1649,7 +1591,7 @@ static void mos7840_throttle(struct tty_struct *tty)
 			return;
 	}
 	/* if we are implementing RTS/CTS, toggle that line */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		mos7840_port->shadowMCR &= ~MCR_RTS;
 		status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
 					 mos7840_port->shadowMCR);
@@ -1670,16 +1612,14 @@ static void mos7840_unthrottle(struct tty_struct *tty)
 	int status;
 	struct moschip_port *mos7840_port = mos7840_get_port_private(port);
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
 
 	if (mos7840_port == NULL)
 		return;
 
 	if (!mos7840_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
@@ -1692,7 +1632,7 @@ static void mos7840_unthrottle(struct tty_struct *tty)
 	}
 
 	/* if we are implementing RTS/CTS, toggle that line */
-	if (tty->termios->c_cflag & CRTSCTS) {
+	if (tty->termios.c_cflag & CRTSCTS) {
 		mos7840_port->shadowMCR |= MCR_RTS;
 		status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
 					 mos7840_port->shadowMCR);
@@ -1724,7 +1664,7 @@ static int mos7840_tiocmget(struct tty_struct *tty)
 	    | ((msr & MOS7840_MSR_RI) ? TIOCM_RI : 0)
 	    | ((msr & MOS7840_MSR_DSR) ? TIOCM_DSR : 0);
 
-	dbg("%s - 0x%04X", __func__, result);
+	dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
 
 	return result;
 }
@@ -1762,7 +1702,7 @@ static int mos7840_tiocmset(struct tty_struct *tty,
 
 	status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
 	if (status < 0) {
-		dbg("setting MODEM_CONTROL_REGISTER Failed");
+		dev_dbg(&port->dev, "setting MODEM_CONTROL_REGISTER Failed\n");
 		return status;
 	}
 
@@ -1774,10 +1714,11 @@ static int mos7840_tiocmset(struct tty_struct *tty,
  *	this function calculates the proper baud rate divisor for the specified
  *	baud rate.
  *****************************************************************************/
-static int mos7840_calc_baud_rate_divisor(int baudRate, int *divisor,
+static int mos7840_calc_baud_rate_divisor(struct usb_serial_port *port,
+					  int baudRate, int *divisor,
 					  __u16 *clk_sel_val)
 {
-	dbg("%s - %d", __func__, baudRate);
+	dev_dbg(&port->dev, "%s - %d\n", __func__, baudRate);
 
 	if (baudRate <= 115200) {
 		*divisor = 115200 / baudRate;
@@ -1830,11 +1771,11 @@ static int mos7840_calc_baud_rate_divisor(int baudRate, int *divisor,
 			custom++;
 		*divisor = custom;
 
-		dbg(" Baud %d = %d", baudrate, custom);
+		dev_dbg(&port->dev, " Baud %d = %d\n", baudrate, custom);
 		return 0;
 	}
 
-	dbg("%s", " Baud calculation Failed...");
+	dev_dbg(&port->dev, "%s", " Baud calculation Failed...\n");
 	return -1;
 #endif
 }
@@ -1858,21 +1799,17 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
 	if (mos7840_port == NULL)
 		return -1;
 
-	port = (struct usb_serial_port *)mos7840_port->port;
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	port = mos7840_port->port;
+	if (mos7840_port_paranoia_check(port, __func__))
 		return -1;
-	}
 
-	if (mos7840_serial_paranoia_check(port->serial, __func__)) {
-		dbg("%s", "Invalid Serial");
+	if (mos7840_serial_paranoia_check(port->serial, __func__))
 		return -1;
-	}
 
 	number = mos7840_port->port->number - mos7840_port->port->serial->minor;
 
-	dbg("%s - port = %d, baud = %d", __func__,
-	    mos7840_port->port->number, baudRate);
+	dev_dbg(&port->dev, "%s - port = %d, baud = %d\n", __func__,
+		mos7840_port->port->number, baudRate);
 	/* reset clk_uart_sel in spregOffset */
 	if (baudRate > 115200) {
 #ifdef HW_flow_control
@@ -1883,7 +1820,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
 		status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
 									Data);
 		if (status < 0) {
-			dbg("Writing spreg failed in set_serial_baud");
+			dev_dbg(&port->dev, "Writing spreg failed in set_serial_baud\n");
 			return -1;
 		}
 #endif
@@ -1896,7 +1833,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
 		status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
 									Data);
 		if (status < 0) {
-			dbg("Writing spreg failed in set_serial_baud");
+			dev_dbg(&port->dev, "Writing spreg failed in set_serial_baud\n");
 			return -1;
 		}
 #endif
@@ -1906,19 +1843,19 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
 	if (1) {		/* baudRate <= 115200) */
 		clk_sel_val = 0x0;
 		Data = 0x0;
-		status = mos7840_calc_baud_rate_divisor(baudRate, &divisor,
+		status = mos7840_calc_baud_rate_divisor(port, baudRate, &divisor,
 						   &clk_sel_val);
 		status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset,
 								 &Data);
 		if (status < 0) {
-			dbg("reading spreg failed in set_serial_baud");
+			dev_dbg(&port->dev, "reading spreg failed in set_serial_baud\n");
 			return -1;
 		}
 		Data = (Data & 0x8f) | clk_sel_val;
 		status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset,
 								Data);
 		if (status < 0) {
-			dbg("Writing spreg failed in set_serial_baud");
+			dev_dbg(&port->dev, "Writing spreg failed in set_serial_baud\n");
 			return -1;
 		}
 		/* Calculate the Divisor */
@@ -1934,11 +1871,11 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
 
 		/* Write the divisor */
 		Data = (unsigned char)(divisor & 0xff);
-		dbg("set_serial_baud Value to write DLL is %x", Data);
+		dev_dbg(&port->dev, "set_serial_baud Value to write DLL is %x\n", Data);
 		mos7840_set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
 
 		Data = (unsigned char)((divisor & 0xff00) >> 8);
-		dbg("set_serial_baud Value to write DLM is %x", Data);
+		dev_dbg(&port->dev, "set_serial_baud Value to write DLM is %x\n", Data);
 		mos7840_set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
 
 		/* Disable access to divisor latch */
@@ -1973,24 +1910,18 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 	if (mos7840_port == NULL)
 		return;
 
-	port = (struct usb_serial_port *)mos7840_port->port;
+	port = mos7840_port->port;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
 
-	if (mos7840_serial_paranoia_check(port->serial, __func__)) {
-		dbg("%s", "Invalid Serial");
+	if (mos7840_serial_paranoia_check(port->serial, __func__))
 		return;
-	}
 
 	serial = port->serial;
 
-	dbg("%s - port %d", __func__, mos7840_port->port->number);
-
 	if (!mos7840_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
@@ -1998,8 +1929,8 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 	lStop = LCR_STOP_1;
 	lParity = LCR_PAR_NONE;
 
-	cflag = tty->termios->c_cflag;
-	iflag = tty->termios->c_iflag;
+	cflag = tty->termios.c_cflag;
+	iflag = tty->termios.c_iflag;
 
 	/* Change the number of bits */
 	if (cflag & CSIZE) {
@@ -2025,14 +1956,14 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 	if (cflag & PARENB) {
 		if (cflag & PARODD) {
 			lParity = LCR_PAR_ODD;
-			dbg("%s - parity = odd", __func__);
+			dev_dbg(&port->dev, "%s - parity = odd\n", __func__);
 		} else {
 			lParity = LCR_PAR_EVEN;
-			dbg("%s - parity = even", __func__);
+			dev_dbg(&port->dev, "%s - parity = even\n", __func__);
 		}
 
 	} else {
-		dbg("%s - parity = none", __func__);
+		dev_dbg(&port->dev, "%s - parity = none\n", __func__);
 	}
 
 	if (cflag & CMSPAR)
@@ -2041,10 +1972,10 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 	/* Change the Stop bit */
 	if (cflag & CSTOPB) {
 		lStop = LCR_STOP_2;
-		dbg("%s - stop bits = 2", __func__);
+		dev_dbg(&port->dev, "%s - stop bits = 2\n", __func__);
 	} else {
 		lStop = LCR_STOP_1;
-		dbg("%s - stop bits = 1", __func__);
+		dev_dbg(&port->dev, "%s - stop bits = 1\n", __func__);
 	}
 
 	/* Update the LCR with the correct value */
@@ -2052,8 +1983,8 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 	    ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
 	mos7840_port->shadowLCR |= (lData | lParity | lStop);
 
-	dbg("mos7840_change_port_settings mos7840_port->shadowLCR is %x",
-	    mos7840_port->shadowLCR);
+	dev_dbg(&port->dev, "%s - mos7840_port->shadowLCR is %x\n", __func__,
+		mos7840_port->shadowLCR);
 	/* Disable Interrupts */
 	Data = 0x00;
 	mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
@@ -2094,11 +2025,11 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 
 	if (!baud) {
 		/* pick a default, any default... */
-		dbg("%s", "Picked default baud...");
+		dev_dbg(&port->dev, "%s", "Picked default baud...\n");
 		baud = 9600;
 	}
 
-	dbg("%s - baud rate = %d", __func__, baud);
+	dev_dbg(&port->dev, "%s - baud rate = %d\n", __func__, baud);
 	status = mos7840_send_cmd_write_baud_rate(mos7840_port, baud);
 
 	/* Enable Interrupts */
@@ -2109,15 +2040,15 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 		mos7840_port->read_urb_busy = true;
 		status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
 		if (status) {
-			dbg("usb_submit_urb(read bulk) failed, status = %d",
+			dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, status = %d\n",
 			    status);
 			mos7840_port->read_urb_busy = false;
 		}
 	}
 	wake_up(&mos7840_port->delta_msr_wait);
 	mos7840_port->delta_msr_cond = 1;
-	dbg("mos7840_change_port_settings mos7840_port->shadowLCR is End %x",
-	    mos7840_port->shadowLCR);
+	dev_dbg(&port->dev, "%s - mos7840_port->shadowLCR is End %x\n", __func__,
+		mos7840_port->shadowLCR);
 }
 
 /*****************************************************************************
@@ -2135,17 +2066,13 @@ static void mos7840_set_termios(struct tty_struct *tty,
 	struct usb_serial *serial;
 	struct moschip_port *mos7840_port;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return;
-	}
 
 	serial = port->serial;
 
-	if (mos7840_serial_paranoia_check(serial, __func__)) {
-		dbg("%s", "Invalid Serial");
+	if (mos7840_serial_paranoia_check(serial, __func__))
 		return;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
 
@@ -2153,26 +2080,26 @@ static void mos7840_set_termios(struct tty_struct *tty,
 		return;
 
 	if (!mos7840_port->open) {
-		dbg("%s - port not opened", __func__);
+		dev_dbg(&port->dev, "%s - port not opened\n", __func__);
 		return;
 	}
 
-	dbg("%s", "setting termios - ");
+	dev_dbg(&port->dev, "%s", "setting termios - \n");
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
-	dbg("%s - clfag %08x iflag %08x", __func__,
-	    tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag));
-	dbg("%s - old clfag %08x old iflag %08x", __func__,
-	    old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__,
+		tty->termios.c_cflag, RELEVANT_IFLAG(tty->termios.c_iflag));
+	dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
+		old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
+	dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
 
 	/* change the port settings to the new ones specified */
 
 	mos7840_change_port_settings(tty, mos7840_port, old_termios);
 
 	if (!mos7840_port->read_urb) {
-		dbg("%s", "URB KILLED !!!!!");
+		dev_dbg(&port->dev, "%s", "URB KILLED !!!!!\n");
 		return;
 	}
 
@@ -2180,7 +2107,7 @@ static void mos7840_set_termios(struct tty_struct *tty,
 		mos7840_port->read_urb_busy = true;
 		status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
 		if (status) {
-			dbg("usb_submit_urb(read bulk) failed, status = %d",
+			dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, status = %d\n",
 			    status);
 			mos7840_port->read_urb_busy = false;
 		}
@@ -2205,10 +2132,8 @@ static int mos7840_get_lsr_info(struct tty_struct *tty,
 	unsigned int result = 0;
 
 	count = mos7840_chars_in_buffer(tty);
-	if (count == 0) {
-		dbg("%s -- Empty", __func__);
+	if (count == 0)
 		result = TIOCSER_TEMT;
-	}
 
 	if (copy_to_user(value, &result, sizeof(int)))
 		return -EFAULT;
@@ -2271,8 +2196,8 @@ static int mos7840_get_icount(struct tty_struct *tty,
 	icount->brk = cnow.brk;
 	icount->buf_overrun = cnow.buf_overrun;
 
-	dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__,
-		port->number, icount->rx, icount->tx);
+	dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n", __func__,
+		icount->rx, icount->tx);
 	return 0;
 }
 
@@ -2291,35 +2216,33 @@ static int mos7840_ioctl(struct tty_struct *tty,
 	struct async_icount cnow;
 	struct async_icount cprev;
 
-	if (mos7840_port_paranoia_check(port, __func__)) {
-		dbg("%s", "Invalid port");
+	if (mos7840_port_paranoia_check(port, __func__))
 		return -1;
-	}
 
 	mos7840_port = mos7840_get_port_private(port);
 
 	if (mos7840_port == NULL)
 		return -1;
 
-	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd);
 
 	switch (cmd) {
 		/* return number of bytes available */
 
 	case TIOCSERGETLSR:
-		dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
+		dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
 		return mos7840_get_lsr_info(tty, argp);
 
 	case TIOCGSERIAL:
-		dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
+		dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
 		return mos7840_get_serial_info(mos7840_port, argp);
 
 	case TIOCSSERIAL:
-		dbg("%s (%d) TIOCSSERIAL", __func__, port->number);
+		dev_dbg(&port->dev, "%s TIOCSSERIAL\n", __func__);
 		break;
 
 	case TIOCMIWAIT:
-		dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
+		dev_dbg(&port->dev, "%s  TIOCMIWAIT\n", __func__);
 		cprev = mos7840_port->icount;
 		while (1) {
 			/* interruptible_sleep_on(&mos7840_port->delta_msr_wait); */
@@ -2435,11 +2358,6 @@ static int mos7840_startup(struct usb_serial *serial)
 	int i, status;
 	__u16 Data;
 
-	if (!serial) {
-		dbg("%s", "Invalid Handler");
-		return -1;
-	}
-
 	dev = serial->dev;
 
 	/* we set up the pointers to the endpoints in the mos7840_open *
@@ -2447,7 +2365,7 @@ static int mos7840_startup(struct usb_serial *serial)
 
 	/* set up port private structures */
 	for (i = 0; i < serial->num_ports; ++i) {
-		dbg ("mos7840_startup: configuring port %d............", i);
+		dev_dbg(&dev->dev, "mos7840_startup: configuring port %d............\n", i);
 		mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL);
 		if (mos7840_port == NULL) {
 			dev_err(&dev->dev, "%s - Out of memory\n", __func__);
@@ -2468,10 +2386,10 @@ static int mos7840_startup(struct usb_serial *serial)
 		 * usb-serial.c:get_free_serial() and cannot therefore be used
 		 * to index device instances */
 		mos7840_port->port_num = i + 1;
-		dbg ("serial->port[i]->number = %d", serial->port[i]->number);
-		dbg ("serial->port[i]->serial->minor = %d", serial->port[i]->serial->minor);
-		dbg ("mos7840_port->port_num = %d", mos7840_port->port_num);
-		dbg ("serial->minor = %d", serial->minor);
+		dev_dbg(&dev->dev, "serial->port[i]->number = %d\n", serial->port[i]->number);
+		dev_dbg(&dev->dev, "serial->port[i]->serial->minor = %d\n", serial->port[i]->serial->minor);
+		dev_dbg(&dev->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num);
+		dev_dbg(&dev->dev, "serial->minor = %d\n", serial->minor);
 
 		if (mos7840_port->port_num == 1) {
 			mos7840_port->SpRegOffset = 0x0;
@@ -2498,18 +2416,17 @@ static int mos7840_startup(struct usb_serial *serial)
 			mos7840_port->ControlRegOffset = 0xd;
 			mos7840_port->DcrRegOffset = 0x1c;
 		}
-		mos7840_dump_serial_port(mos7840_port);
+		mos7840_dump_serial_port(serial->port[i], mos7840_port);
 		mos7840_set_port_private(serial->port[i], mos7840_port);
 
 		/* enable rx_disable bit in control register */
 		status = mos7840_get_reg_sync(serial->port[i],
 				 mos7840_port->ControlRegOffset, &Data);
 		if (status < 0) {
-			dbg("Reading ControlReg failed status-0x%x", status);
+			dev_dbg(&dev->dev, "Reading ControlReg failed status-0x%x\n", status);
 			break;
 		} else
-			dbg("ControlReg Reading success val is %x, status%d",
-			    Data, status);
+			dev_dbg(&dev->dev, "ControlReg Reading success val is %x, status%d\n", Data, status);
 		Data |= 0x08;	/* setting driver done bit */
 		Data |= 0x04;	/* sp1_bit to have cts change reflect in
 				   modem status reg */
@@ -2518,11 +2435,10 @@ static int mos7840_startup(struct usb_serial *serial)
 		status = mos7840_set_reg_sync(serial->port[i],
 					 mos7840_port->ControlRegOffset, Data);
 		if (status < 0) {
-			dbg("Writing ControlReg failed(rx_disable) status-0x%x", status);
+			dev_dbg(&dev->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status);
 			break;
 		} else
-			dbg("ControlReg Writing success(rx_disable) status%d",
-			    status);
+			dev_dbg(&dev->dev, "ControlReg Writing success(rx_disable) status%d\n", status);
 
 		/* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2
 		   and 0x24 in DCR3 */
@@ -2530,61 +2446,57 @@ static int mos7840_startup(struct usb_serial *serial)
 		status = mos7840_set_reg_sync(serial->port[i],
 			 (__u16) (mos7840_port->DcrRegOffset + 0), Data);
 		if (status < 0) {
-			dbg("Writing DCR0 failed status-0x%x", status);
+			dev_dbg(&dev->dev, "Writing DCR0 failed status-0x%x\n", status);
 			break;
 		} else
-			dbg("DCR0 Writing success status%d", status);
+			dev_dbg(&dev->dev, "DCR0 Writing success status%d\n", status);
 
 		Data = 0x05;
 		status = mos7840_set_reg_sync(serial->port[i],
 			 (__u16) (mos7840_port->DcrRegOffset + 1), Data);
 		if (status < 0) {
-			dbg("Writing DCR1 failed status-0x%x", status);
+			dev_dbg(&dev->dev, "Writing DCR1 failed status-0x%x\n", status);
 			break;
 		} else
-			dbg("DCR1 Writing success status%d", status);
+			dev_dbg(&dev->dev, "DCR1 Writing success status%d\n", status);
 
 		Data = 0x24;
 		status = mos7840_set_reg_sync(serial->port[i],
 			 (__u16) (mos7840_port->DcrRegOffset + 2), Data);
 		if (status < 0) {
-			dbg("Writing DCR2 failed status-0x%x", status);
+			dev_dbg(&dev->dev, "Writing DCR2 failed status-0x%x\n", status);
 			break;
 		} else
-			dbg("DCR2 Writing success status%d", status);
+			dev_dbg(&dev->dev, "DCR2 Writing success status%d\n", status);
 
 		/* write values in clkstart0x0 and clkmulti 0x20 */
 		Data = 0x0;
 		status = mos7840_set_reg_sync(serial->port[i],
 					 CLK_START_VALUE_REGISTER, Data);
 		if (status < 0) {
-			dbg("Writing CLK_START_VALUE_REGISTER failed status-0x%x", status);
+			dev_dbg(&dev->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status);
 			break;
 		} else
-			dbg("CLK_START_VALUE_REGISTER Writing success status%d", status);
+			dev_dbg(&dev->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status);
 
 		Data = 0x20;
 		status = mos7840_set_reg_sync(serial->port[i],
 					CLK_MULTI_REGISTER, Data);
 		if (status < 0) {
-			dbg("Writing CLK_MULTI_REGISTER failed status-0x%x",
-			    status);
+			dev_dbg(&dev->dev, "Writing CLK_MULTI_REGISTER failed status-0x%x\n", status);
 			goto error;
 		} else
-			dbg("CLK_MULTI_REGISTER Writing success status%d",
-			    status);
+			dev_dbg(&dev->dev, "CLK_MULTI_REGISTER Writing success status%d\n", status);
 
 		/* write value 0x0 to scratchpad register */
 		Data = 0x00;
 		status = mos7840_set_uart_reg(serial->port[i],
 						SCRATCH_PAD_REGISTER, Data);
 		if (status < 0) {
-			dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x",
-			    status);
+			dev_dbg(&dev->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status);
 			break;
 		} else
-			dbg("SCRATCH_PAD_REGISTER Writing success status%d",
-			    status);
+			dev_dbg(&dev->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status);
 
 		/* Zero Length flag register */
 		if ((mos7840_port->port_num != 1)
@@ -2594,31 +2506,25 @@ static int mos7840_startup(struct usb_serial *serial)
 			status = mos7840_set_reg_sync(serial->port[i],
 				      (__u16) (ZLP_REG1 +
 				      ((__u16)mos7840_port->port_num)), Data);
-			dbg("ZLIP offset %x",
-			    (__u16) (ZLP_REG1 +
-					((__u16) mos7840_port->port_num)));
+			dev_dbg(&dev->dev, "ZLIP offset %x\n",
+				(__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num)));
 			if (status < 0) {
-				dbg("Writing ZLP_REG%d failed status-0x%x",
-				    i + 2, status);
+				dev_dbg(&dev->dev, "Writing ZLP_REG%d failed status-0x%x\n", i + 2, status);
 				break;
 			} else
-				dbg("ZLP_REG%d Writing success status%d",
-				    i + 2, status);
+				dev_dbg(&dev->dev, "ZLP_REG%d Writing success status%d\n", i + 2, status);
 		} else {
 			Data = 0xff;
 			status = mos7840_set_reg_sync(serial->port[i],
 			      (__u16) (ZLP_REG1 +
 			      ((__u16)mos7840_port->port_num) - 0x1), Data);
-			dbg("ZLIP offset %x",
-			    (__u16) (ZLP_REG1 +
-				     ((__u16) mos7840_port->port_num) - 0x1));
+			dev_dbg(&dev->dev, "ZLIP offset %x\n",
+				(__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num) - 0x1));
 			if (status < 0) {
-				dbg("Writing ZLP_REG%d failed status-0x%x",
-				    i + 1, status);
+				dev_dbg(&dev->dev, "Writing ZLP_REG%d failed status-0x%x\n", i + 1, status);
 				break;
 			} else
-				dbg("ZLP_REG%d Writing success status%d",
-				    i + 1, status);
+				dev_dbg(&dev->dev, "ZLP_REG%d Writing success status%d\n", i + 1, status);
 
 		}
 		mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL);
@@ -2659,20 +2565,19 @@ static int mos7840_startup(struct usb_serial *serial)
 						MODEM_CONTROL_REGISTER, 0x0300);
 		}
 	}
-	dbg ("mos7840_startup: all ports configured...........");
 
 	/* Zero Length flag enable */
 	Data = 0x0f;
 	status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data);
 	if (status < 0) {
-		dbg("Writing ZLP_REG5 failed status-0x%x", status);
+		dev_dbg(&dev->dev, "Writing ZLP_REG5 failed status-0x%x\n", status);
 		goto error;
 	} else
-		dbg("ZLP_REG5 Writing success status%d", status);
+		dev_dbg(&dev->dev, "ZLP_REG5 Writing success status%d\n", status);
 
 	/* setting configuration feature to one */
 	usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
-			(__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5 * HZ);
+			(__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, MOS_WDR_TIMEOUT);
 	return 0;
 error:
 	for (/* nothing */; i >= 0; i--) {
@@ -2698,11 +2603,6 @@ static void mos7840_disconnect(struct usb_serial *serial)
 	unsigned long flags;
 	struct moschip_port *mos7840_port;
 
-	if (!serial) {
-		dbg("%s", "Invalid Handler");
-		return;
-	}
-
 	/* check for the ports to be closed,close the ports and disconnect */
 
 	/* free private structure allocated for serial port  *
@@ -2710,7 +2610,6 @@ static void mos7840_disconnect(struct usb_serial *serial)
 
 	for (i = 0; i < serial->num_ports; ++i) {
 		mos7840_port = mos7840_get_port_private(serial->port[i]);
-		dbg ("mos7840_port %d = %p", i, mos7840_port);
 		if (mos7840_port) {
 			spin_lock_irqsave(&mos7840_port->pool_lock, flags);
 			mos7840_port->zombie = 1;
@@ -2730,11 +2629,6 @@ static void mos7840_release(struct usb_serial *serial)
 	int i;
 	struct moschip_port *mos7840_port;
 
-	if (!serial) {
-		dbg("%s", "Invalid Handler");
-		return;
-	}
-
 	/* check for the ports to be closed,close the ports and disconnect */
 
 	/* free private structure allocated for serial port  *
@@ -2742,7 +2636,6 @@ static void mos7840_release(struct usb_serial *serial)
 
 	for (i = 0; i < serial->num_ports; ++i) {
 		mos7840_port = mos7840_get_port_private(serial->port[i]);
-		dbg("mos7840_port %d = %p", i, mos7840_port);
 		if (mos7840_port) {
 			if (mos7840_port->has_led) {
 				/* Turn off LED */
@@ -2799,6 +2692,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c
index d95452cc076..1566f8f500a 100644
--- a/drivers/usb/serial/navman.c
+++ b/drivers/usb/serial/navman.c
@@ -21,8 +21,6 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x0a99, 0x0001) },	/* Talon Technology device */
 	{ USB_DEVICE(0x0df7, 0x0900) },	/* Mobile Action i-gotU */
@@ -55,8 +53,7 @@ static void navman_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
-			      urb->actual_length, data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	tty = tty_port_tty_get(&port->port);
 	if (tty && urb->actual_length) {
@@ -123,6 +120,3 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index 6f3d7051c7f..6def58b7938 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -23,8 +23,6 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
-static bool debug;
-
 /*
  * Version Information
  */
@@ -164,31 +162,21 @@ static void omninet_read_bulk_callback(struct urb *urb)
 	struct omninet_header 	*header = (struct omninet_header *) &data[0];
 	int status = urb->status;
 	int result;
-	int i;
 
 	if (status) {
-		dbg("%s - nonzero read bulk status received: %d",
-		    __func__, status);
+		dev_dbg(&port->dev, "%s - nonzero read bulk status received: %d\n",
+			__func__, status);
 		return;
 	}
 
-	if (debug && header->oh_xxx != 0x30) {
-		if (urb->actual_length) {
-			printk(KERN_DEBUG "%s: omninet_read %d: ",
-			       __FILE__, header->oh_len);
-			for (i = 0; i < (header->oh_len +
-						OMNINET_HEADERLEN); i++)
-				printk("%.2x ", data[i]);
-			printk("\n");
-		}
-	}
-
 	if (urb->actual_length && header->oh_len) {
 		struct tty_struct *tty = tty_port_tty_get(&port->port);
-		tty_insert_flip_string(tty, data + OMNINET_DATAOFFSET,
+		if (tty) {
+			tty_insert_flip_string(tty, data + OMNINET_DATAOFFSET,
 							header->oh_len);
-		tty_flip_buffer_push(tty);
-		tty_kref_put(tty);
+			tty_flip_buffer_push(tty);
+			tty_kref_put(tty);
+		}
 	}
 
 	/* Continue trying to always read  */
@@ -212,12 +200,12 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port,
 	int			result;
 
 	if (count == 0) {
-		dbg("%s - write request of 0 bytes", __func__);
+		dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
 		return 0;
 	}
 
 	if (!test_and_clear_bit(0, &port->write_urbs_free)) {
-		dbg("%s - already writing", __func__);
+		dev_dbg(&port->dev, "%s - already writing\n", __func__);
 		return 0;
 	}
 
@@ -226,8 +214,8 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port,
 	memcpy(wport->write_urb->transfer_buffer + OMNINET_DATAOFFSET,
 								buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-					wport->write_urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count,
+			      wport->write_urb->transfer_buffer);
 
 	header->oh_seq 	= od->od_outseq++;
 	header->oh_len 	= count;
@@ -261,7 +249,7 @@ static int omninet_write_room(struct tty_struct *tty)
 	if (test_bit(0, &wport->write_urbs_free))
 		room = wport->bulk_out_size - OMNINET_HEADERLEN;
 
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
 
 	return room;
 }
@@ -275,8 +263,8 @@ static void omninet_write_bulk_callback(struct urb *urb)
 
 	set_bit(0, &port->write_urbs_free);
 	if (status) {
-		dbg("%s - nonzero write bulk status received: %d",
-		    __func__, status);
+		dev_dbg(&port->dev, "%s - nonzero write bulk status received: %d\n",
+			__func__, status);
 		return;
 	}
 
@@ -304,6 +292,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 02cb1b7f655..41b1647306e 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -32,8 +32,6 @@
  * an examples of 1D barcode types are EAN, UPC, Code39, IATA etc.. */
 #define DRIVER_DESC	"Opticon USB barcode to serial driver (1D)"
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x065a, 0x0009) },
 	{ },
@@ -78,17 +76,16 @@ static void opticon_read_bulk_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d",
-		    __func__, status);
+		dev_dbg(&priv->udev->dev, "%s - urb shutting down with status: %d\n",
+			__func__, status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d",
-		    __func__, status);
+		dev_dbg(&priv->udev->dev, "%s - nonzero urb status received: %d\n",
+			__func__, status);
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length,
-			      data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	if (urb->actual_length > 2) {
 		data_length = urb->actual_length - 2;
@@ -229,8 +226,8 @@ static void opticon_write_control_callback(struct urb *urb)
 	kfree(urb->setup_packet);
 
 	if (status)
-		dbg("%s - nonzero write bulk status received: %d",
-		    __func__, status);
+		dev_dbg(&priv->udev->dev, "%s - nonzero write bulk status received: %d\n",
+			__func__, status);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	--priv->outstanding_urbs;
@@ -253,7 +250,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port,
 	spin_lock_irqsave(&priv->lock, flags);
 	if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
 		spin_unlock_irqrestore(&priv->lock, flags);
-		dbg("%s - write limit hit", __func__);
+		dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
 		return 0;
 	}
 	priv->outstanding_urbs++;
@@ -276,7 +273,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 	memcpy(buffer, buf, count);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
+	usb_serial_debug_data(&port->dev, __func__, count, buffer);
 
 	/* The conncected devices do not have a bulk write endpoint,
 	 * to transmit data to de barcode device the control endpoint is used */
@@ -338,7 +335,7 @@ static int opticon_write_room(struct tty_struct *tty)
 	spin_lock_irqsave(&priv->lock, flags);
 	if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
 		spin_unlock_irqrestore(&priv->lock, flags);
-		dbg("%s - write limit hit", __func__);
+		dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
 		return 0;
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
@@ -394,7 +391,7 @@ static int opticon_tiocmget(struct tty_struct *tty)
 		result |= TIOCM_CTS;
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - %x", __func__, result);
+	dev_dbg(&port->dev, "%s - %x\n", __func__, result);
 	return result;
 }
 
@@ -466,7 +463,7 @@ static int opticon_ioctl(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	struct opticon_private *priv = usb_get_serial_data(port->serial);
 
-	dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
@@ -612,6 +609,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 08ff9b86204..30cff03e9f0 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -80,85 +80,9 @@ static void option_instat_callback(struct urb *urb);
 #define OPTION_PRODUCT_GTM380_MODEM		0x7201
 
 #define HUAWEI_VENDOR_ID			0x12D1
-#define HUAWEI_PRODUCT_E600			0x1001
-#define HUAWEI_PRODUCT_E220			0x1003
-#define HUAWEI_PRODUCT_E220BIS			0x1004
-#define HUAWEI_PRODUCT_E1401			0x1401
-#define HUAWEI_PRODUCT_E1402			0x1402
-#define HUAWEI_PRODUCT_E1403			0x1403
-#define HUAWEI_PRODUCT_E1404			0x1404
-#define HUAWEI_PRODUCT_E1405			0x1405
-#define HUAWEI_PRODUCT_E1406			0x1406
-#define HUAWEI_PRODUCT_E1407			0x1407
-#define HUAWEI_PRODUCT_E1408			0x1408
-#define HUAWEI_PRODUCT_E1409			0x1409
-#define HUAWEI_PRODUCT_E140A			0x140A
-#define HUAWEI_PRODUCT_E140B			0x140B
-#define HUAWEI_PRODUCT_E140C			0x140C
-#define HUAWEI_PRODUCT_E140D			0x140D
-#define HUAWEI_PRODUCT_E140E			0x140E
-#define HUAWEI_PRODUCT_E140F			0x140F
-#define HUAWEI_PRODUCT_E1410			0x1410
-#define HUAWEI_PRODUCT_E1411			0x1411
-#define HUAWEI_PRODUCT_E1412			0x1412
-#define HUAWEI_PRODUCT_E1413			0x1413
-#define HUAWEI_PRODUCT_E1414			0x1414
-#define HUAWEI_PRODUCT_E1415			0x1415
-#define HUAWEI_PRODUCT_E1416			0x1416
-#define HUAWEI_PRODUCT_E1417			0x1417
-#define HUAWEI_PRODUCT_E1418			0x1418
-#define HUAWEI_PRODUCT_E1419			0x1419
-#define HUAWEI_PRODUCT_E141A			0x141A
-#define HUAWEI_PRODUCT_E141B			0x141B
-#define HUAWEI_PRODUCT_E141C			0x141C
-#define HUAWEI_PRODUCT_E141D			0x141D
-#define HUAWEI_PRODUCT_E141E			0x141E
-#define HUAWEI_PRODUCT_E141F			0x141F
-#define HUAWEI_PRODUCT_E1420			0x1420
-#define HUAWEI_PRODUCT_E1421			0x1421
-#define HUAWEI_PRODUCT_E1422			0x1422
-#define HUAWEI_PRODUCT_E1423			0x1423
-#define HUAWEI_PRODUCT_E1424			0x1424
-#define HUAWEI_PRODUCT_E1425			0x1425
-#define HUAWEI_PRODUCT_E1426			0x1426
-#define HUAWEI_PRODUCT_E1427			0x1427
-#define HUAWEI_PRODUCT_E1428			0x1428
-#define HUAWEI_PRODUCT_E1429			0x1429
-#define HUAWEI_PRODUCT_E142A			0x142A
-#define HUAWEI_PRODUCT_E142B			0x142B
-#define HUAWEI_PRODUCT_E142C			0x142C
-#define HUAWEI_PRODUCT_E142D			0x142D
-#define HUAWEI_PRODUCT_E142E			0x142E
-#define HUAWEI_PRODUCT_E142F			0x142F
-#define HUAWEI_PRODUCT_E1430			0x1430
-#define HUAWEI_PRODUCT_E1431			0x1431
-#define HUAWEI_PRODUCT_E1432			0x1432
-#define HUAWEI_PRODUCT_E1433			0x1433
-#define HUAWEI_PRODUCT_E1434			0x1434
-#define HUAWEI_PRODUCT_E1435			0x1435
-#define HUAWEI_PRODUCT_E1436			0x1436
-#define HUAWEI_PRODUCT_E1437			0x1437
-#define HUAWEI_PRODUCT_E1438			0x1438
-#define HUAWEI_PRODUCT_E1439			0x1439
-#define HUAWEI_PRODUCT_E143A			0x143A
-#define HUAWEI_PRODUCT_E143B			0x143B
-#define HUAWEI_PRODUCT_E143C			0x143C
-#define HUAWEI_PRODUCT_E143D			0x143D
-#define HUAWEI_PRODUCT_E143E			0x143E
-#define HUAWEI_PRODUCT_E143F			0x143F
 #define HUAWEI_PRODUCT_K4505			0x1464
 #define HUAWEI_PRODUCT_K3765			0x1465
-#define HUAWEI_PRODUCT_E14AC			0x14AC
-#define HUAWEI_PRODUCT_K3806			0x14AE
 #define HUAWEI_PRODUCT_K4605			0x14C6
-#define HUAWEI_PRODUCT_K5005			0x14C8
-#define HUAWEI_PRODUCT_K3770			0x14C9
-#define HUAWEI_PRODUCT_K3771			0x14CA
-#define HUAWEI_PRODUCT_K4510			0x14CB
-#define HUAWEI_PRODUCT_K4511			0x14CC
-#define HUAWEI_PRODUCT_ETS1220			0x1803
-#define HUAWEI_PRODUCT_E353			0x1506
-#define HUAWEI_PRODUCT_E173S			0x1C05
 
 #define QUANTA_VENDOR_ID			0x0408
 #define QUANTA_PRODUCT_Q101			0xEA02
@@ -615,104 +539,123 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLX) },
 	{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GKE) },
 	{ USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLE) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1401, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1402, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1403, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1404, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1405, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1406, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1407, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1408, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1409, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140A, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140B, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140C, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140D, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140E, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E140F, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1410, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1411, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1412, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1413, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1414, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1415, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1416, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1417, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1418, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1419, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141A, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141B, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141C, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141D, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141E, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E141F, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1420, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1421, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1422, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1423, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1424, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1425, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1426, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1427, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1428, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1429, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142A, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142B, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142C, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142D, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142E, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E142F, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1430, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1431, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1432, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1433, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1434, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1435, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1436, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1437, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1438, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1439, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143A, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143B, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143C, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E173S, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4505, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ETS1220, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3806, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0x01, 0x31) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0x01, 0x32) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K5005, 0xff, 0x01, 0x31) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K5005, 0xff, 0x01, 0x32) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K5005, 0xff, 0x01, 0x33) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3770, 0xff, 0x02, 0x31) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3770, 0xff, 0x02, 0x32) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3771, 0xff, 0x02, 0x31) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3771, 0xff, 0x02, 0x32) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4510, 0xff, 0x01, 0x31) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4510, 0xff, 0x01, 0x32) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4511, 0xff, 0x01, 0x31) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4511, 0xff, 0x01, 0x32) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x01) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x02) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x03) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x10) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x12) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x13) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x01) },  /* E398 3G Modem */
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x02) },  /* E398 3G PC UI Interface */
-	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x03) },  /* E398 3G Application Interface */
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0xff, 0xff) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x01) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x02) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x03) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x04) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x05) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x06) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x0A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x0B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x0D) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x0E) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x0F) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x10) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x12) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x13) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x14) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x15) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x17) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x18) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x19) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x1A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x1B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x1C) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x31) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x32) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x33) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x34) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x35) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x36) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x3A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x3B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x3D) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x3E) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x3F) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x48) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x49) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x4A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x4B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x4C) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x61) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x62) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x63) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x64) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x65) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x66) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x6A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x6B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x6D) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x6E) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x6F) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x78) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x79) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x7A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x7B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x01, 0x7C) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x01) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x02) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x03) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x04) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x05) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x06) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x0A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x0B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x0D) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x0E) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x0F) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x10) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x12) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x13) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x14) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x15) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x17) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x18) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x19) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x1A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x1B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x1C) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x31) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x32) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x33) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x34) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x35) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x36) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x3A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x3B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x3D) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x3E) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x3F) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x48) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x49) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x4A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x4B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x4C) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x61) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x62) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x63) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x64) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x65) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x66) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x6A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x6B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x6D) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x6E) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x6F) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x78) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x79) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7A) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7B) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7C) },
+
+
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) },
@@ -927,7 +870,8 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0153, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0155, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0156, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0157, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0157, 0xff, 0xff, 0xff),
+	  .driver_info = (kernel_ulong_t)&net_intf5_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0158, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0159, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0161, 0xff, 0xff, 0xff) },
@@ -1147,6 +1091,10 @@ static const struct usb_device_id option_ids[] = {
 	 .driver_info = (kernel_ulong_t)&zte_ad3812_z_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2716, 0xff, 0xff, 0xff),
 	 .driver_info = (kernel_ulong_t)&zte_mc2716_z_blacklist },
+	{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x01) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x05) },
+	{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x86, 0x10) },
+
 	{ USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
 	{ USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
 	{ USB_DEVICE(ALINK_VENDOR_ID, DLINK_PRODUCT_DWM_652_U5) }, /* Yes, ALINK_VENDOR_ID */
@@ -1297,8 +1245,8 @@ static struct usb_serial_driver option_1port_device = {
 	.tiocmset          = usb_wwan_tiocmset,
 	.ioctl             = usb_wwan_ioctl,
 	.attach            = usb_wwan_startup,
-	.disconnect        = usb_wwan_disconnect,
 	.release           = option_release,
+	.port_remove	   = usb_wwan_port_remove,
 	.read_int_callback = option_instat_callback,
 #ifdef CONFIG_PM
 	.suspend           = usb_wwan_suspend,
@@ -1310,8 +1258,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
 	&option_1port_device, NULL
 };
 
-static bool debug;
-
 struct option_private {
 	u8 bInterfaceNumber;
 };
@@ -1414,8 +1360,6 @@ static void option_release(struct usb_serial *serial)
 	struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
 	struct option_private *priv = intfdata->private;
 
-	usb_wwan_release(serial);
-
 	kfree(priv);
 	kfree(intfdata);
 }
@@ -1424,18 +1368,19 @@ static void option_instat_callback(struct urb *urb)
 {
 	int err;
 	int status = urb->status;
-	struct usb_serial_port *port =  urb->context;
+	struct usb_serial_port *port = urb->context;
+	struct device *dev = &port->dev;
 	struct usb_wwan_port_private *portdata =
 					usb_get_serial_port_data(port);
 
-	dbg("%s: urb %p port %p has data %p", __func__, urb, port, portdata);
+	dev_dbg(dev, "%s: urb %p port %p has data %p\n", __func__, urb, port, portdata);
 
 	if (status == 0) {
 		struct usb_ctrlrequest *req_pkt =
 				(struct usb_ctrlrequest *)urb->transfer_buffer;
 
 		if (!req_pkt) {
-			dbg("%s: NULL req_pkt", __func__);
+			dev_dbg(dev, "%s: NULL req_pkt\n", __func__);
 			return;
 		}
 		if ((req_pkt->bRequestType == 0xA1) &&
@@ -1445,7 +1390,7 @@ static void option_instat_callback(struct urb *urb)
 					urb->transfer_buffer +
 					sizeof(struct usb_ctrlrequest));
 
-			dbg("%s: signal x%x", __func__, signals);
+			dev_dbg(dev, "%s: signal x%x\n", __func__, signals);
 
 			old_dcd_state = portdata->dcd_state;
 			portdata->cts_state = 1;
@@ -1461,17 +1406,17 @@ static void option_instat_callback(struct urb *urb)
 				tty_kref_put(tty);
 			}
 		} else {
-			dbg("%s: type %x req %x", __func__,
+			dev_dbg(dev, "%s: type %x req %x\n", __func__,
 				req_pkt->bRequestType, req_pkt->bRequest);
 		}
 	} else
-		dev_err(&port->dev, "%s: error %d\n", __func__, status);
+		dev_err(dev, "%s: error %d\n", __func__, status);
 
 	/* Resubmit urb so we continue receiving IRQ data */
 	if (status != -ESHUTDOWN && status != -ENOENT) {
 		err = usb_submit_urb(urb, GFP_ATOMIC);
 		if (err)
-			dbg("%s: resubmit intr urb failed. (%d)",
+			dev_dbg(dev, "%s: resubmit intr urb failed. (%d)\n",
 				__func__, err);
 	}
 }
@@ -1505,6 +1450,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug messages");
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 5976b65ab6e..933241f03fd 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -66,8 +66,6 @@ static const struct usb_device_id id_table[] = {
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-static bool debug;
-
 /* requests */
 #define	OTI6858_REQ_GET_STATUS		(USB_DIR_IN | USB_TYPE_VENDOR | 0x00)
 #define	OTI6858_REQ_T_GET_STATUS	0x01
@@ -256,11 +254,11 @@ static void setup_line(struct work_struct *work)
 	priv->setup_done = 1;
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s(): submitting interrupt urb", __func__);
+	dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result != 0) {
-		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
-				" with error %d\n", __func__, result);
+		dev_err(&port->dev, "%s(): usb_submit_urb() failed with error %d\n",
+			__func__, result);
 	}
 }
 
@@ -310,11 +308,11 @@ static void send_data(struct work_struct *work)
 	if (count == 0) {
 		priv->flags.write_urb_in_use = 0;
 
-		dbg("%s(): submitting interrupt urb", __func__);
+		dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);
 		result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
 		if (result != 0) {
-			dev_err(&port->dev, "%s(): usb_submit_urb() failed"
-				" with error %d\n", __func__, result);
+			dev_err(&port->dev, "%s(): usb_submit_urb() failed with error %d\n",
+				__func__, result);
 		}
 		return;
 	}
@@ -325,8 +323,8 @@ static void send_data(struct work_struct *work)
 	port->write_urb->transfer_buffer_length = count;
 	result = usb_submit_urb(port->write_urb, GFP_NOIO);
 	if (result != 0) {
-		dev_err_console(port, "%s(): usb_submit_urb() failed"
-			       " with error %d\n", __func__, result);
+		dev_err_console(port, "%s(): usb_submit_urb() failed with error %d\n",
+				__func__, result);
 		priv->flags.write_urb_in_use = 0;
 	}
 
@@ -404,10 +402,10 @@ static int oti6858_chars_in_buffer(struct tty_struct *tty)
 
 static void oti6858_init_termios(struct tty_struct *tty)
 {
-	*(tty->termios) = tty_std_termios;
-	tty->termios->c_cflag = B38400 | CS8 | CREAD | HUPCL | CLOCAL;
-	tty->termios->c_ispeed = 38400;
-	tty->termios->c_ospeed = 38400;
+	tty->termios = tty_std_termios;
+	tty->termios.c_cflag = B38400 | CS8 | CREAD | HUPCL | CLOCAL;
+	tty->termios.c_ispeed = 38400;
+	tty->termios.c_ospeed = 38400;
 }
 
 static void oti6858_set_termios(struct tty_struct *tty,
@@ -420,12 +418,10 @@ static void oti6858_set_termios(struct tty_struct *tty,
 	__le16 divisor;
 	int br;
 
-	if (!tty) {
-		dbg("%s(): no tty structures", __func__);
+	if (!tty)
 		return;
-	}
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	spin_lock_irqsave(&priv->lock, flags);
 	divisor = priv->pending_setup.divisor;
@@ -560,11 +556,11 @@ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port)
 	spin_unlock_irqrestore(&priv->lock, flags);
 	kfree(buf);
 
-	dbg("%s(): submitting interrupt urb", __func__);
+	dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result != 0) {
-		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
-			       " with error %d\n", __func__, result);
+		dev_err(&port->dev, "%s(): usb_submit_urb() failed with error %d\n",
+			__func__, result);
 		oti6858_close(port);
 		return result;
 	}
@@ -586,14 +582,14 @@ static void oti6858_close(struct usb_serial_port *port)
 	kfifo_reset_out(&port->write_fifo);
 	spin_unlock_irqrestore(&port->lock, flags);
 
-	dbg("%s(): after buf_clear()", __func__);
+	dev_dbg(&port->dev, "%s(): after buf_clear()\n", __func__);
 
 	/* cancel scheduled setup */
 	cancel_delayed_work_sync(&priv->delayed_setup_work);
 	cancel_delayed_work_sync(&priv->delayed_write_work);
 
 	/* shutdown our urbs */
-	dbg("%s(): shutting down urbs", __func__);
+	dev_dbg(&port->dev, "%s(): shutting down urbs\n", __func__);
 	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
 	usb_kill_urb(port->interrupt_in_urb);
@@ -607,8 +603,8 @@ static int oti6858_tiocmset(struct tty_struct *tty,
 	unsigned long flags;
 	u8 control;
 
-	dbg("%s(port = %d, set = 0x%08x, clear = 0x%08x)",
-				__func__, port->number, set, clear);
+	dev_dbg(&port->dev, "%s(set = 0x%08x, clear = 0x%08x)\n",
+		__func__, set, clear);
 
 	/* FIXME: check if this is correct (active high/low) */
 	spin_lock_irqsave(&priv->lock, flags);
@@ -655,7 +651,7 @@ static int oti6858_tiocmget(struct tty_struct *tty)
 	if ((pin_state & PIN_DCD) != 0)
 		result |= TIOCM_CD;
 
-	dbg("%s() = 0x%08x", __func__, result);
+	dev_dbg(&port->dev, "%s() = 0x%08x\n", __func__, result);
 
 	return result;
 }
@@ -700,15 +696,14 @@ static int oti6858_ioctl(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s(port = %d, cmd = 0x%04x, arg = 0x%08lx)",
-				__func__, port->number, cmd, arg);
+	dev_dbg(&port->dev, "%s(cmd = 0x%04x, arg = 0x%08lx)\n", __func__, cmd, arg);
 
 	switch (cmd) {
 	case TIOCMIWAIT:
-		dbg("%s(): TIOCMIWAIT", __func__);
+		dev_dbg(&port->dev, "%s(): TIOCMIWAIT\n", __func__);
 		return wait_modem_info(port, arg);
 	default:
-		dbg("%s(): 0x%04x not supported", __func__, cmd);
+		dev_dbg(&port->dev, "%s(): 0x%04x not supported\n", __func__, cmd);
 		break;
 	}
 	return -ENOIOCTLCMD;
@@ -738,12 +733,12 @@ static void oti6858_read_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s(): urb shutting down with status: %d",
-					__func__, status);
+		dev_dbg(&urb->dev->dev, "%s(): urb shutting down with status: %d\n",
+			__func__, status);
 		return;
 	default:
-		dbg("%s(): nonzero urb status received: %d",
-					__func__, status);
+		dev_dbg(&urb->dev->dev, "%s(): nonzero urb status received: %d\n",
+			__func__, status);
 		break;
 	}
 
@@ -759,8 +754,7 @@ static void oti6858_read_int_callback(struct urb *urb)
 					priv->transient = 4;
 					priv->setup_done = 0;
 					resubmit = 0;
-					dbg("%s(): scheduling setup_line()",
-					    __func__);
+					dev_dbg(&port->dev, "%s(): scheduling setup_line()\n", __func__);
 					schedule_delayed_work(&priv->delayed_setup_work, 0);
 				}
 			}
@@ -774,8 +768,7 @@ static void oti6858_read_int_callback(struct urb *urb)
 					priv->transient = 4;
 					priv->setup_done = 0;
 					resubmit = 0;
-					dbg("%s(): scheduling setup_line()",
-					    __func__);
+					dev_dbg(&port->dev, "%s(): scheduling setup_line()\n", __func__);
 					schedule_delayed_work(&priv->delayed_setup_work, 0);
 				}
 			}
@@ -826,7 +819,7 @@ static void oti6858_read_int_callback(struct urb *urb)
 	if (resubmit) {
 		int result;
 
-/*		dbg("%s(): submitting interrupt urb", __func__); */
+/*		dev_dbg(&urb->dev->dev, "%s(): submitting interrupt urb\n", __func__); */
 		result = usb_submit_urb(urb, GFP_ATOMIC);
 		if (result != 0) {
 			dev_err(&urb->dev->dev,
@@ -851,7 +844,7 @@ static void oti6858_read_bulk_callback(struct urb *urb)
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	if (status != 0) {
-		dbg("%s(): unable to handle the error, exiting", __func__);
+		dev_dbg(&urb->dev->dev, "%s(): unable to handle the error, exiting\n", __func__);
 		return;
 	}
 
@@ -885,15 +878,13 @@ static void oti6858_write_bulk_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s(): urb shutting down with status: %d",
-					__func__, status);
+		dev_dbg(&urb->dev->dev, "%s(): urb shutting down with status: %d\n", __func__, status);
 		priv->flags.write_urb_in_use = 0;
 		return;
 	default:
 		/* error in the urb, so we have to resubmit it */
-		dbg("%s(): nonzero write bulk status received: %d",
-					__func__, status);
-		dbg("%s(): overflow in write", __func__);
+		dev_dbg(&urb->dev->dev, "%s(): nonzero write bulk status received: %d\n", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s(): overflow in write\n", __func__);
 
 		port->write_urb->transfer_buffer_length = 1;
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
@@ -908,7 +899,7 @@ static void oti6858_write_bulk_callback(struct urb *urb)
 	priv->flags.write_urb_in_use = 0;
 
 	/* schedule the interrupt urb if we are still open */
-	dbg("%s(): submitting interrupt urb", __func__);
+	dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 	if (result != 0) {
 		dev_err(&port->dev, "%s(): failed submitting int urb,"
@@ -922,7 +913,3 @@ MODULE_DESCRIPTION(OTI6858_DESCRIPTION);
 MODULE_AUTHOR(OTI6858_AUTHOR);
 MODULE_VERSION(OTI6858_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "enable debug output");
-
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 13b8dd6481f..892ebdc7a36 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -36,8 +36,6 @@
  */
 #define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver"
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) },
 	{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) },
@@ -260,16 +258,16 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	   serial settings even to the same values as before. Thus
 	   we actually need to filter in this specific case */
 
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (!tty_termios_hw_change(&tty->termios, old_termios))
 		return;
 
-	cflag = tty->termios->c_cflag;
+	cflag = tty->termios.c_cflag;
 
 	buf = kzalloc(7, GFP_KERNEL);
 	if (!buf) {
 		dev_err(&port->dev, "%s - out of memory.\n", __func__);
 		/* Report back no change occurred */
-		*tty->termios = *old_termios;
+		tty->termios = *old_termios;
 		return;
 	}
 
@@ -741,7 +739,7 @@ static void pl2303_read_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__,
+	usb_serial_debug_data(&port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	pl2303_update_line_status(port, data, actual_length);
@@ -839,7 +837,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c
index a4edc7ee9c8..9b1b96f2d09 100644
--- a/drivers/usb/serial/qcaux.c
+++ b/drivers/usb/serial/qcaux.c
@@ -36,8 +36,6 @@
 #define UTSTARCOM_PRODUCT_UM175_V1		0x3712
 #define UTSTARCOM_PRODUCT_UM175_V2		0x3714
 #define UTSTARCOM_PRODUCT_UM175_ALLTEL		0x3715
-#define PANTECH_PRODUCT_UML190_VZW		0x3716
-#define PANTECH_PRODUCT_UML290_VZW		0x3718
 
 /* CMOTECH devices */
 #define CMOTECH_VENDOR_ID			0x16d8
@@ -68,11 +66,9 @@ static struct usb_device_id id_table[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(LG_VENDOR_ID, LG_PRODUCT_VX4400_6000, 0xff, 0xff, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(SANYO_VENDOR_ID, SANYO_PRODUCT_KATANA_LX, 0xff, 0xff, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_U520, 0xff, 0x00, 0x00) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, PANTECH_PRODUCT_UML190_VZW, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, PANTECH_PRODUCT_UML190_VZW, 0xff, 0xfe, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, PANTECH_PRODUCT_UML290_VZW, 0xff, 0xfd, 0xff) },  /* NMEA */
-	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, PANTECH_PRODUCT_UML290_VZW, 0xff, 0xfe, 0xff) },  /* WMC */
-	{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, PANTECH_PRODUCT_UML290_VZW, 0xff, 0xff, 0xff) },  /* DIAG */
+	{ USB_VENDOR_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, 0xff, 0xfd, 0xff) },  /* NMEA */
+	{ USB_VENDOR_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, 0xff, 0xfe, 0xff) },  /* WMC */
+	{ USB_VENDOR_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, 0xff, 0xff, 0xff) },  /* DIAG */
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 8d103019d6a..c3ddb65c05f 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -22,8 +22,6 @@
 #define DRIVER_AUTHOR "Qualcomm Inc"
 #define DRIVER_DESC "Qualcomm USB Serial driver"
 
-static bool debug;
-
 #define DEVICE_G1K(v, p) \
 	USB_DEVICE(v, p), .driver_info = 1
 
@@ -199,43 +197,49 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 
 	/* default to enabling interface */
 	altsetting = 0;
-	switch (ifnum) {
-		/* Composite mode; don't bind to the QMI/net interface as that
-		 * gets handled by other drivers.
-		 */
 
+	/* Composite mode; don't bind to the QMI/net interface as that
+	 * gets handled by other drivers.
+	 */
+
+	if (is_gobi1k) {
 		/* Gobi 1K USB layout:
 		 * 0: serial port (doesn't respond)
 		 * 1: serial port (doesn't respond)
 		 * 2: AT-capable modem port
 		 * 3: QMI/net
-		 *
-		 * Gobi 2K+ USB layout:
+		 */
+		if (ifnum == 2)
+			dev_dbg(dev, "Modem port found\n");
+		else
+			altsetting = -1;
+	} else {
+		/* Gobi 2K+ USB layout:
 		 * 0: QMI/net
 		 * 1: DM/DIAG (use libqcdm from ModemManager for communication)
 		 * 2: AT-capable modem port
 		 * 3: NMEA
 		 */
-
-	case 1:
-		if (is_gobi1k)
+		switch (ifnum) {
+		case 0:
+			/* Don't claim the QMI/net interface */
 			altsetting = -1;
-		else
+			break;
+		case 1:
 			dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
-		break;
-	case 2:
-		dev_dbg(dev, "Modem port found\n");
-		break;
-	case 3:
-		if (is_gobi1k)
-			altsetting = -1;
-		else
+			break;
+		case 2:
+			dev_dbg(dev, "Modem port found\n");
+			break;
+		case 3:
 			/*
 			 * NMEA (serial line 9600 8N1)
 			 * # echo "\$GPS_START" > /dev/ttyUSBx
 			 * # echo "\$GPS_STOP"  > /dev/ttyUSBx
 			 */
 			dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
+			break;
+		}
 	}
 
 done:
@@ -262,8 +266,7 @@ static void qc_release(struct usb_serial *serial)
 {
 	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
 
-	/* Call usb_wwan release & free the private data allocated in qcprobe */
-	usb_wwan_release(serial);
+	/* Free the private data allocated in qcprobe */
 	usb_set_serial_data(serial, NULL);
 	kfree(priv);
 }
@@ -283,8 +286,8 @@ static struct usb_serial_driver qcdevice = {
 	.write_room	     = usb_wwan_write_room,
 	.chars_in_buffer     = usb_wwan_chars_in_buffer,
 	.attach		     = usb_wwan_startup,
-	.disconnect	     = usb_wwan_disconnect,
 	.release	     = qc_release,
+	.port_remove	     = usb_wwan_port_remove,
 #ifdef CONFIG_PM
 	.suspend	     = usb_wwan_suspend,
 	.resume		     = usb_wwan_resume,
@@ -300,6 +303,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL v2");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index 151670b6b72..2cdfdcc90b3 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -27,8 +27,6 @@
 #include <linux/serial_reg.h>
 #include <linux/uaccess.h>
 
-static bool debug;
-
 /* default urb timeout for usb operations */
 #define QT2_USB_TIMEOUT USB_CTRL_SET_TIMEOUT
 
@@ -275,7 +273,7 @@ static void qt2_set_termios(struct tty_struct *tty,
 {
 	struct usb_device *dev = port->serial->dev;
 	struct qt2_port_private *port_priv;
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	u16 baud;
 	unsigned int cflag = termios->c_cflag;
 	u16 new_lcr = 0;
@@ -406,7 +404,7 @@ static int qt2_open(struct tty_struct *tty, struct usb_serial_port *port)
 	port_priv->device_port = (u8) device_port;
 
 	if (tty)
-		qt2_set_termios(tty, port, tty->termios);
+		qt2_set_termios(tty, port, &tty->termios);
 
 	return 0;
 
@@ -1089,7 +1087,7 @@ static int qt2_write(struct tty_struct *tty,
 	data = write_urb->transfer_buffer;
 	spin_lock_irqsave(&port_priv->urb_lock, flags);
 	if (port_priv->urb_in_use == true) {
-		printk(KERN_INFO "qt2_write - urb is in use\n");
+		dev_err(&port->dev, "qt2_write - urb is in use\n");
 		goto write_out;
 	}
 
@@ -1146,6 +1144,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 36e9d9fc061..c949ce6ef0c 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -62,6 +62,7 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -81,11 +82,9 @@
 #define CONFIG_USB_SERIAL_SAFE_PADDED 0
 #endif
 
-static bool debug;
 static bool safe = 1;
 static bool padded = CONFIG_USB_SERIAL_SAFE_PADDED;
 
-#define DRIVER_VERSION "v0.1"
 #define DRIVER_AUTHOR "sl@lineo.com, tbr@lineo.com, Johan Hovold <jhovold@gmail.com>"
 #define DRIVER_DESC "USB Safe Encapsulated Serial"
 
@@ -100,9 +99,6 @@ MODULE_PARM_DESC(vendor, "User specified USB idVendor (required)");
 module_param(product, ushort, 0);
 MODULE_PARM_DESC(product, "User specified USB idProduct (required)");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
-
 module_param(safe, bool, 0);
 MODULE_PARM_DESC(safe, "Turn Safe Encapsulation On/Off");
 
@@ -315,13 +311,9 @@ static int __init safe_init(void)
 {
 	int i;
 
-	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
-	       DRIVER_DESC "\n");
-
 	/* if we have vendor / product parameters patch them into id list */
 	if (vendor || product) {
-		printk(KERN_INFO KBUILD_MODNAME ": vendor: %x product: %x\n",
-		       vendor, product);
+		pr_info("vendor: %x product: %x\n", vendor, product);
 
 		for (i = 0; i < ARRAY_SIZE(id_table); i++) {
 			if (!id_table[i].idVendor && !id_table[i].idProduct) {
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 0274710cced..01d882cf377 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -46,7 +46,6 @@
    allocations > PAGE_SIZE and the number of packets in a page
    is an integer 512 is the largest possible packet on EHCI */
 
-static bool debug;
 static bool nmea;
 
 /* Used in interface blacklisting */
@@ -382,7 +381,7 @@ static int sierra_send_setup(struct usb_serial_port *port)
 static void sierra_set_termios(struct tty_struct *tty,
 		struct usb_serial_port *port, struct ktermios *old_termios)
 {
-	tty_termios_copy_hw(tty->termios, old_termios);
+	tty_termios_copy_hw(&tty->termios, old_termios);
 	sierra_send_setup(port);
 }
 
@@ -518,7 +517,7 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
 
 	memcpy(buffer, buf, writesize);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer);
+	usb_serial_debug_data(&port->dev, __func__, writesize, buffer);
 
 	usb_fill_bulk_urb(urb, serial->dev,
 			  usb_sndbulkpipe(serial->dev,
@@ -595,8 +594,8 @@ static void sierra_indat_callback(struct urb *urb)
 				tty_flip_buffer_push(tty);
 
 				tty_kref_put(tty);
-				usb_serial_debug_data(debug, &port->dev,
-					__func__, urb->actual_length, data);
+				usb_serial_debug_data(&port->dev, __func__,
+						      urb->actual_length, data);
 			}
 		} else {
 			dev_dbg(&port->dev, "%s: empty read urb"
@@ -765,7 +764,6 @@ static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
 			usb_sndbulkpipe(serial->dev, endpoint) | dir,
 			buf, len, callback, ctx);
 
-		/* debug */
 		dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__,
 				dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
 	} else {
@@ -1082,6 +1080,3 @@ MODULE_LICENSE("GPL");
 
 module_param(nmea, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(nmea, "NMEA streaming");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug messages");
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index cad60898471..9716efe9295 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -33,8 +33,6 @@
 #define DRIVER_VERSION	"v0.10"
 #define DRIVER_DESC 	"SPCP8x5 USB to serial adaptor driver"
 
-static bool debug;
-
 #define SPCP8x5_007_VID		0x04FC
 #define SPCP8x5_007_PID		0x0201
 #define SPCP8x5_008_VID		0x04fc
@@ -316,10 +314,10 @@ static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on)
 static void spcp8x5_init_termios(struct tty_struct *tty)
 {
 	/* for the 1st time call this function */
-	*(tty->termios) = tty_std_termios;
-	tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
-	tty->termios->c_ispeed = 115200;
-	tty->termios->c_ospeed = 115200;
+	tty->termios = tty_std_termios;
+	tty->termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
+	tty->termios.c_ispeed = 115200;
+	tty->termios.c_ospeed = 115200;
 }
 
 /* set the serial param for transfer. we should check if we really need to
@@ -330,7 +328,7 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
 	struct usb_serial *serial = port->serial;
 	struct spcp8x5_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 	unsigned int old_cflag = old_termios->c_cflag;
 	unsigned short uartdata;
 	unsigned char buf[2] = {0, 0};
@@ -340,7 +338,7 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
 
 
 	/* check that they really want us to change something */
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (!tty_termios_hw_change(&tty->termios, old_termios))
 		return;
 
 	/* set DTR/RTS active */
@@ -665,6 +663,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 3fee23bf0c1..015810b3785 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -46,8 +46,6 @@
 #define FULLPWRBIT          0x00000080
 #define NEXT_BOARD_POWER_BIT        0x00000004
 
-static bool debug;
-
 /* Version Information */
 #define DRIVER_VERSION "v0.1"
 #define DRIVER_DESC "Quatech SSU-100 USB to Serial Driver"
@@ -135,7 +133,7 @@ static inline int update_mctrl(struct usb_device *dev, unsigned int set,
 	int result;
 
 	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
-		dbg("%s - DTR|RTS not being set|cleared", __func__);
+		dev_dbg(&dev->dev, "%s - DTR|RTS not being set|cleared\n", __func__);
 		return 0;	/* no change */
 	}
 
@@ -148,7 +146,7 @@ static inline int update_mctrl(struct usb_device *dev, unsigned int set,
 
 	result = ssu100_setregister(dev, 0, UART_MCR, urb_value);
 	if (result < 0)
-		dbg("%s Error from MODEM_CTRL urb", __func__);
+		dev_dbg(&dev->dev, "%s Error from MODEM_CTRL urb\n", __func__);
 
 	return result;
 }
@@ -164,7 +162,7 @@ static int ssu100_initdevice(struct usb_device *dev)
 
 	result = ssu100_getdevice(dev, data);
 	if (result < 0) {
-		dbg("%s - get_device failed %i", __func__, result);
+		dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result);
 		goto out;
 	}
 
@@ -172,25 +170,25 @@ static int ssu100_initdevice(struct usb_device *dev)
 
 	result = ssu100_setdevice(dev, data);
 	if (result < 0) {
-		dbg("%s - setdevice failed %i", __func__, result);
+		dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result);
 		goto out;
 	}
 
 	result = ssu100_control_msg(dev, QT_GET_SET_PREBUF_TRIG_LVL, 128, 0);
 	if (result < 0) {
-		dbg("%s - set prebuffer level failed %i", __func__, result);
+		dev_dbg(&dev->dev, "%s - set prebuffer level failed %i\n", __func__, result);
 		goto out;
 	}
 
 	result = ssu100_control_msg(dev, QT_SET_ATF, ATC_DISABLED, 0);
 	if (result < 0) {
-		dbg("%s - set ATFprebuffer level failed %i", __func__, result);
+		dev_dbg(&dev->dev, "%s - set ATFprebuffer level failed %i\n", __func__, result);
 		goto out;
 	}
 
 	result = ssu100_getdevice(dev, data);
 	if (result < 0) {
-		dbg("%s - get_device failed %i", __func__, result);
+		dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result);
 		goto out;
 	}
 
@@ -201,7 +199,7 @@ static int ssu100_initdevice(struct usb_device *dev)
 
 	result = ssu100_setdevice(dev, data);
 	if (result < 0) {
-		dbg("%s - setdevice failed %i", __func__, result);
+		dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result);
 		goto out;
 	}
 
@@ -216,7 +214,7 @@ static void ssu100_set_termios(struct tty_struct *tty,
 			       struct ktermios *old_termios)
 {
 	struct usb_device *dev = port->serial->dev;
-	struct ktermios *termios = tty->termios;
+	struct ktermios *termios = &tty->termios;
 	u16 baud, divisor, remainder;
 	unsigned int cflag = termios->c_cflag;
 	u16 urb_value = 0; /* will hold the new flags */
@@ -249,7 +247,7 @@ static void ssu100_set_termios(struct tty_struct *tty,
 	if (!baud)
 		baud = 9600;
 
-	dbg("%s - got baud = %d\n", __func__, baud);
+	dev_dbg(&port->dev, "%s - got baud = %d\n", __func__, baud);
 
 
 	divisor = MAX_BAUD_RATE / baud;
@@ -261,7 +259,7 @@ static void ssu100_set_termios(struct tty_struct *tty,
 
 	result = ssu100_control_msg(dev, QT_GET_SET_UART, divisor, urb_value);
 	if (result < 0)
-		dbg("%s - set uart failed", __func__);
+		dev_dbg(&port->dev, "%s - set uart failed\n", __func__);
 
 	if (cflag & CRTSCTS)
 		result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK,
@@ -270,7 +268,7 @@ static void ssu100_set_termios(struct tty_struct *tty,
 		result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK,
 					    0, 0);
 	if (result < 0)
-		dbg("%s - set HW flow control failed", __func__);
+		dev_dbg(&port->dev, "%s - set HW flow control failed\n", __func__);
 
 	if (I_IXOFF(tty) || I_IXON(tty)) {
 		u16 x = ((u16)(START_CHAR(tty) << 8) | (u16)(STOP_CHAR(tty)));
@@ -282,7 +280,7 @@ static void ssu100_set_termios(struct tty_struct *tty,
 					    0, 0);
 
 	if (result < 0)
-		dbg("%s - set SW flow control failed", __func__);
+		dev_dbg(&port->dev, "%s - set SW flow control failed\n", __func__);
 
 }
 
@@ -304,7 +302,7 @@ static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port)
 				 QT_TRANSFER_IN, 0x01,
 				 0, data, 2, 300);
 	if (result < 0) {
-		dbg("%s - open failed %i", __func__, result);
+		dev_dbg(&port->dev, "%s - open failed %i\n", __func__, result);
 		kfree(data);
 		return result;
 	}
@@ -319,10 +317,10 @@ static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port)
 /* set to 9600 */
 	result = ssu100_control_msg(dev, QT_GET_SET_UART, 0x30, 0x0300);
 	if (result < 0)
-		dbg("%s - set uart failed", __func__);
+		dev_dbg(&port->dev, "%s - set uart failed\n", __func__);
 
 	if (tty)
-		ssu100_set_termios(tty, port, tty->termios);
+		ssu100_set_termios(tty, port, &tty->termios);
 
 	return usb_serial_generic_open(tty, port);
 }
@@ -423,7 +421,7 @@ static int ssu100_ioctl(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s cmd 0x%04x", __func__, cmd);
+	dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
@@ -437,7 +435,7 @@ static int ssu100_ioctl(struct tty_struct *tty,
 		break;
 	}
 
-	dbg("%s arg not supported", __func__);
+	dev_dbg(&port->dev, "%s arg not supported\n", __func__);
 
 	return -ENOIOCTLCMD;
 }
@@ -668,6 +666,3 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index e53d2aac35c..701fffa8431 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -20,8 +20,6 @@
 #include <linux/usb/serial.h>
 #include <linux/uaccess.h>
 
-static bool debug;
-
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x05e0, 0x0600) },
 	{ },
@@ -71,8 +69,7 @@ static void symbol_int_callback(struct urb *urb)
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length,
-			      data);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
 
 	if (urb->actual_length > 1) {
 		data_length = urb->actual_length - 1;
@@ -292,6 +289,3 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index a4404f5ad68..6f49392cda5 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -40,7 +40,6 @@
 
 /* Defines */
 
-#define TI_DRIVER_VERSION	"v0.10"
 #define TI_DRIVER_AUTHOR	"Al Borchers <alborchers@steinerpoint.com>"
 #define TI_DRIVER_DESC		"TI USB 3410/5052 Serial Driver"
 
@@ -141,8 +140,8 @@ static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
 static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
 	__u16 moduleid, __u16 value, __u8 *data, int size);
 
-static int ti_write_byte(struct ti_device *tdev, unsigned long addr,
-	__u8 mask, __u8 byte);
+static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev,
+			 unsigned long addr, __u8 mask, __u8 byte);
 
 static int ti_download_firmware(struct ti_device *tdev);
 
@@ -150,7 +149,6 @@ static int ti_download_firmware(struct ti_device *tdev);
 /* Data */
 
 /* module parameters */
-static bool debug;
 static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
 static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT];
 static unsigned int vendor_3410_count;
@@ -277,7 +275,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
 
 MODULE_AUTHOR(TI_DRIVER_AUTHOR);
 MODULE_DESCRIPTION(TI_DRIVER_DESC);
-MODULE_VERSION(TI_DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
 MODULE_FIRMWARE("ti_3410.fw");
@@ -288,9 +285,6 @@ MODULE_FIRMWARE("mts_edge.fw");
 MODULE_FIRMWARE("mts_mt9234mu.fw");
 MODULE_FIRMWARE("mts_mt9234zba.fw");
 
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes");
-
 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(closing_wait,
     "Maximum wait for data to drain in close, in .01 secs, default is 4000");
@@ -316,7 +310,6 @@ MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
 static int __init ti_init(void)
 {
 	int i, j, c;
-	int ret;
 
 	/* insert extra vendor and product ids */
 	c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1;
@@ -339,11 +332,7 @@ static int __init ti_init(void)
 		ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
 	}
 
-	ret = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined);
-	if (ret == 0)
-		printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":"
-			       TI_DRIVER_DESC "\n");
-	return ret;
+	return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined);
 }
 
 static void __exit ti_exit(void)
@@ -364,10 +353,11 @@ static int ti_startup(struct usb_serial *serial)
 	int i;
 
 
-	dbg("%s - product 0x%4X, num configurations %d, configuration value %d",
-	    __func__, le16_to_cpu(dev->descriptor.idProduct),
-	    dev->descriptor.bNumConfigurations,
-	    dev->actconfig->desc.bConfigurationValue);
+	dev_dbg(&dev->dev,
+		"%s - product 0x%4X, num configurations %d, configuration value %d",
+		__func__, le16_to_cpu(dev->descriptor.idProduct),
+		dev->descriptor.bNumConfigurations,
+		dev->actconfig->desc.bConfigurationValue);
 
 	/* create device structure */
 	tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL);
@@ -382,8 +372,8 @@ static int ti_startup(struct usb_serial *serial)
 	/* determine device type */
 	if (usb_match_id(serial->interface, ti_id_table_3410))
 		tdev->td_is_3410 = 1;
-	dbg("%s - device type is %s", __func__,
-				tdev->td_is_3410 ? "3410" : "5052");
+	dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
+		tdev->td_is_3410 ? "3410" : "5052");
 
 	/* if we have only 1 configuration, download firmware */
 	if (dev->descriptor.bNumConfigurations == 1) {
@@ -501,37 +491,34 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* start interrupt urb the first time a port is opened on this device */
 	if (tdev->td_open_port_count == 0) {
-		dbg("%s - start interrupt in urb", __func__);
+		dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__);
 		urb = tdev->td_serial->port[0]->interrupt_in_urb;
 		if (!urb) {
-			dev_err(&port->dev, "%s - no interrupt urb\n",
-								__func__);
+			dev_err(&port->dev, "%s - no interrupt urb\n", __func__);
 			status = -EINVAL;
 			goto release_lock;
 		}
 		urb->context = tdev;
 		status = usb_submit_urb(urb, GFP_KERNEL);
 		if (status) {
-			dev_err(&port->dev,
-				"%s - submit interrupt urb failed, %d\n",
-					__func__, status);
+			dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status);
 			goto release_lock;
 		}
 	}
 
 	if (tty)
-		ti_set_termios(tty, port, tty->termios);
+		ti_set_termios(tty, port, &tty->termios);
 
-	dbg("%s - sending TI_OPEN_PORT", __func__);
+	dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__);
 	status = ti_command_out_sync(tdev, TI_OPEN_PORT,
 		(__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
 	if (status) {
 		dev_err(&port->dev, "%s - cannot send open command, %d\n",
-							__func__, status);
+			__func__, status);
 		goto unlink_int_urb;
 	}
 
-	dbg("%s - sending TI_START_PORT", __func__);
+	dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__);
 	status = ti_command_out_sync(tdev, TI_START_PORT,
 		(__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
 	if (status) {
@@ -540,7 +527,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 		goto unlink_int_urb;
 	}
 
-	dbg("%s - sending TI_PURGE_PORT", __func__);
+	dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__);
 	status = ti_command_out_sync(tdev, TI_PURGE_PORT,
 		(__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
 	if (status) {
@@ -562,9 +549,9 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 	usb_clear_halt(dev, port->read_urb->pipe);
 
 	if (tty)
-		ti_set_termios(tty, port, tty->termios);
+		ti_set_termios(tty, port, &tty->termios);
 
-	dbg("%s - sending TI_OPEN_PORT (2)", __func__);
+	dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__);
 	status = ti_command_out_sync(tdev, TI_OPEN_PORT,
 		(__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
 	if (status) {
@@ -573,7 +560,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 		goto unlink_int_urb;
 	}
 
-	dbg("%s - sending TI_START_PORT (2)", __func__);
+	dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__);
 	status = ti_command_out_sync(tdev, TI_START_PORT,
 		(__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
 	if (status) {
@@ -583,7 +570,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 	}
 
 	/* start read urb */
-	dbg("%s - start read urb", __func__);
+	dev_dbg(&port->dev, "%s - start read urb\n", __func__);
 	urb = port->read_urb;
 	if (!urb) {
 		dev_err(&port->dev, "%s - no read urb\n", __func__);
@@ -609,7 +596,7 @@ unlink_int_urb:
 		usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
 release_lock:
 	mutex_unlock(&tdev->td_open_close_lock);
-	dbg("%s - exit %d", __func__, status);
+	dev_dbg(&port->dev, "%s - exit %d\n", __func__, status);
 	return status;
 }
 
@@ -637,7 +624,7 @@ static void ti_close(struct usb_serial_port *port)
 
 	port_number = port->number - port->serial->minor;
 
-	dbg("%s - sending TI_CLOSE_PORT", __func__);
+	dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__);
 	status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
 		     (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
 	if (status)
@@ -664,7 +651,7 @@ static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
 	struct ti_port *tport = usb_get_serial_port_data(port);
 
 	if (count == 0) {
-		dbg("%s - write request of 0 bytes", __func__);
+		dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
 		return 0;
 	}
 
@@ -693,7 +680,7 @@ static int ti_write_room(struct tty_struct *tty)
 	room = kfifo_avail(&tport->write_fifo);
 	spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-	dbg("%s - returns %d", __func__, room);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
 	return room;
 }
 
@@ -712,7 +699,7 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
 	chars = kfifo_len(&tport->write_fifo);
 	spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-	dbg("%s - returns %d", __func__, chars);
+	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
 	return chars;
 }
 
@@ -755,8 +742,7 @@ static int ti_get_icount(struct tty_struct *tty,
 	struct ti_port *tport = usb_get_serial_port_data(port);
 	struct async_icount cnow = tport->tp_icount;
 
-	dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d",
-		__func__, port->number,
+	dev_dbg(&port->dev, "%s - TIOCGICOUNT RX=%d, TX=%d\n", __func__,
 		cnow.rx, cnow.tx);
 
 	icount->cts = cnow.cts;
@@ -782,22 +768,22 @@ static int ti_ioctl(struct tty_struct *tty,
 	struct async_icount cnow;
 	struct async_icount cprev;
 
-	dbg("%s - port %d, cmd = 0x%04X", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd);
 
 	if (tport == NULL)
 		return -ENODEV;
 
 	switch (cmd) {
 	case TIOCGSERIAL:
-		dbg("%s - (%d) TIOCGSERIAL", __func__, port->number);
+		dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
 		return ti_get_serial_info(tport,
 				(struct serial_struct __user *)arg);
 	case TIOCSSERIAL:
-		dbg("%s - (%d) TIOCSSERIAL", __func__, port->number);
+		dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__);
 		return ti_set_serial_info(tty, tport,
 				(struct serial_struct __user *)arg);
 	case TIOCMIWAIT:
-		dbg("%s - (%d) TIOCMIWAIT", __func__, port->number);
+		dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
 		cprev = tport->tp_icount;
 		while (1) {
 			interruptible_sleep_on(&tport->tp_msr_wait);
@@ -831,12 +817,12 @@ static void ti_set_termios(struct tty_struct *tty,
 	int port_number = port->number - port->serial->minor;
 	unsigned int mcr;
 
-	cflag = tty->termios->c_cflag;
-	iflag = tty->termios->c_iflag;
+	cflag = tty->termios.c_cflag;
+	iflag = tty->termios.c_iflag;
 
-	dbg("%s - cflag %08x, iflag %08x", __func__, cflag, iflag);
-	dbg("%s - old clfag %08x, old iflag %08x", __func__,
-				old_termios->c_cflag, old_termios->c_iflag);
+	dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag);
+	dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__,
+		old_termios->c_cflag, old_termios->c_iflag);
 
 	if (tport == NULL)
 		return;
@@ -871,7 +857,7 @@ static void ti_set_termios(struct tty_struct *tty,
 	}
 
 	/* CMSPAR isn't supported by this driver */
-	tty->termios->c_cflag &= ~CMSPAR;
+	tty->termios.c_cflag &= ~CMSPAR;
 
 	if (cflag & PARENB) {
 		if (cflag & PARODD) {
@@ -926,8 +912,11 @@ static void ti_set_termios(struct tty_struct *tty,
 	if ((cflag & CBAUD) != B0)
 		tty_encode_baud_rate(tty, baud, baud);
 
-	dbg("%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d",
-	__func__, baud, config->wBaudRate, config->wFlags, config->bDataBits, config->bParity, config->bStopBits, config->cXon, config->cXoff, config->bUartMode);
+	dev_dbg(&port->dev,
+		"%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d",
+		__func__, baud, config->wBaudRate, config->wFlags,
+		config->bDataBits, config->bParity, config->bStopBits,
+		config->cXon, config->cXoff, config->bUartMode);
 
 	cpu_to_be16s(&config->wBaudRate);
 	cpu_to_be16s(&config->wFlags);
@@ -979,7 +968,7 @@ static int ti_tiocmget(struct tty_struct *tty)
 		| ((msr & TI_MSR_RI) ? TIOCM_RI : 0)
 		| ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0);
 
-	dbg("%s - 0x%04X", __func__, result);
+	dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
 
 	return result;
 }
@@ -1024,19 +1013,19 @@ static void ti_break(struct tty_struct *tty, int break_state)
 	struct ti_port *tport = usb_get_serial_port_data(port);
 	int status;
 
-	dbg("%s - state = %d", __func__, break_state);
+	dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state);
 
 	if (tport == NULL)
 		return;
 
 	ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0);
 
-	status = ti_write_byte(tport->tp_tdev,
+	status = ti_write_byte(port, tport->tp_tdev,
 		tport->tp_uart_base_addr + TI_UART_OFFSET_LCR,
 		TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0);
 
 	if (status)
-		dbg("%s - error setting break, %d", __func__, status);
+		dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status);
 }
 
 
@@ -1061,18 +1050,17 @@ static void ti_interrupt_callback(struct urb *urb)
 	case -ECONNRESET:
 	case -ENOENT:
 	case -ESHUTDOWN:
-		dbg("%s - urb shutting down, %d", __func__, status);
+		dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
 		tdev->td_urb_error = 1;
 		return;
 	default:
-		dev_err(dev, "%s - nonzero urb status, %d\n",
-			__func__, status);
+		dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status);
 		tdev->td_urb_error = 1;
 		goto exit;
 	}
 
 	if (length != 2) {
-		dbg("%s - bad packet size, %d", __func__, length);
+		dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length);
 		goto exit;
 	}
 
@@ -1084,8 +1072,8 @@ static void ti_interrupt_callback(struct urb *urb)
 	port_number = TI_GET_PORT_FROM_CODE(data[0]);
 	function = TI_GET_FUNC_FROM_CODE(data[0]);
 
-	dbg("%s - port_number %d, function %d, data 0x%02X",
-				__func__, port_number, function, data[1]);
+	dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n",
+		__func__, port_number, function, data[1]);
 
 	if (port_number >= serial->num_ports) {
 		dev_err(dev, "%s - bad port number, %d\n",
@@ -1102,12 +1090,12 @@ static void ti_interrupt_callback(struct urb *urb)
 	switch (function) {
 	case TI_CODE_DATA_ERROR:
 		dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n",
-					__func__, port_number, data[1]);
+			__func__, port_number, data[1]);
 		break;
 
 	case TI_CODE_MODEM_STATUS:
 		msr = data[1];
-		dbg("%s - port %d, msr 0x%02X", __func__, port_number, msr);
+		dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr);
 		ti_handle_new_msr(tport, msr);
 		break;
 
@@ -1140,7 +1128,7 @@ static void ti_bulk_in_callback(struct urb *urb)
 	case -ECONNRESET:
 	case -ENOENT:
 	case -ESHUTDOWN:
-		dbg("%s - urb shutting down, %d", __func__, status);
+		dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
 		tport->tp_tdev->td_urb_error = 1;
 		wake_up_interruptible(&tport->tp_write_wait);
 		return;
@@ -1162,11 +1150,11 @@ static void ti_bulk_in_callback(struct urb *urb)
 	tty = tty_port_tty_get(&port->port);
 	if (tty) {
 		if (urb->actual_length) {
-			usb_serial_debug_data(debug, dev, __func__,
-				urb->actual_length, urb->transfer_buffer);
+			usb_serial_debug_data(dev, __func__, urb->actual_length,
+					      urb->transfer_buffer);
 
 			if (!tport->tp_is_open)
-				dbg("%s - port closed, dropping data",
+				dev_dbg(dev, "%s - port closed, dropping data\n",
 					__func__);
 			else
 				ti_recv(&urb->dev->dev, tty,
@@ -1208,7 +1196,7 @@ static void ti_bulk_out_callback(struct urb *urb)
 	case -ECONNRESET:
 	case -ENOENT:
 	case -ESHUTDOWN:
-		dbg("%s - urb shutting down, %d", __func__, status);
+		dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
 		tport->tp_tdev->td_urb_error = 1;
 		wake_up_interruptible(&tport->tp_write_wait);
 		return;
@@ -1268,8 +1256,8 @@ static void ti_send(struct ti_port *tport)
 
 	spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-	usb_serial_debug_data(debug, &port->dev, __func__, count,
-					port->write_urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, count,
+			      port->write_urb->transfer_buffer);
 
 	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
 			   usb_sndbulkpipe(port->serial->dev,
@@ -1307,7 +1295,7 @@ static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
 	unsigned long flags;
 	int status;
 
-	status = ti_write_byte(tport->tp_tdev,
+	status = ti_write_byte(tport->tp_port, tport->tp_tdev,
 		tport->tp_uart_base_addr + TI_UART_OFFSET_MCR,
 		TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr);
 
@@ -1344,7 +1332,7 @@ static int ti_get_lsr(struct ti_port *tport)
 		goto free_data;
 	}
 
-	dbg("%s - lsr 0x%02X", __func__, data->bLSR);
+	dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR);
 
 	tport->tp_lsr = data->bLSR;
 
@@ -1401,7 +1389,7 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr)
 	struct tty_struct *tty;
 	unsigned long flags;
 
-	dbg("%s - msr 0x%02X", __func__, msr);
+	dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr);
 
 	if (msr & TI_MSR_DELTA_MASK) {
 		spin_lock_irqsave(&tport->tp_lock, flags);
@@ -1560,21 +1548,21 @@ static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
 }
 
 
-static int ti_write_byte(struct ti_device *tdev, unsigned long addr,
-	__u8 mask, __u8 byte)
+static int ti_write_byte(struct usb_serial_port *port,
+			struct ti_device *tdev, unsigned long addr,
+			__u8 mask, __u8 byte)
 {
 	int status;
 	unsigned int size;
 	struct ti_write_data_bytes *data;
-	struct device *dev = &tdev->td_serial->dev->dev;
 
-	dbg("%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X",
-					__func__, addr, mask, byte);
+	dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__,
+		addr, mask, byte);
 
 	size = sizeof(struct ti_write_data_bytes) + 2;
 	data = kmalloc(size, GFP_KERNEL);
 	if (!data) {
-		dev_err(dev, "%s - out of memory\n", __func__);
+		dev_err(&port->dev, "%s - out of memory\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -1590,7 +1578,7 @@ static int ti_write_byte(struct ti_device *tdev, unsigned long addr,
 		(__u8 *)data, size);
 
 	if (status < 0)
-		dev_err(dev, "%s - failed, %d\n", __func__, status);
+		dev_err(&port->dev, "%s - failed, %d\n", __func__, status);
 
 	kfree(data);
 
@@ -1615,7 +1603,7 @@ static int ti_do_download(struct usb_device *dev, int pipe,
 					- sizeof(struct ti_firmware_header)));
 	header->bCheckSum = cs;
 
-	dbg("%s - downloading firmware", __func__);
+	dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__);
 	for (pos = 0; pos < size; pos += done) {
 		len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE);
 		status = usb_bulk_msg(dev, pipe, buffer + pos, len,
@@ -1691,7 +1679,7 @@ static int ti_download_firmware(struct ti_device *tdev)
 		status = ti_do_download(dev, pipe, buffer, fw_p->size);
 		kfree(buffer);
 	} else {
-		dbg("%s ENOMEM\n", __func__);
+		dev_dbg(&dev->dev, "%s ENOMEM\n", __func__);
 		status = -ENOMEM;
 	}
 	release_firmware(fw_p);
@@ -1701,7 +1689,7 @@ static int ti_download_firmware(struct ti_device *tdev)
 		return status;
 	}
 
-	dbg("%s - download successful", __func__);
+	dev_dbg(&dev->dev, "%s - download successful\n", __func__);
 
 	return 0;
 }
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 27483f91a4a..73b8e056916 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -17,6 +17,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/init.h>
@@ -37,10 +39,7 @@
 #include <linux/kfifo.h>
 #include "pl2303.h"
 
-/*
- * Version Information
- */
-#define DRIVER_AUTHOR "Greg Kroah-Hartman, greg@kroah.com, http://www.kroah.com/linux/"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
 #define DRIVER_DESC "USB Serial Driver core"
 
 /* There is no MODULE_DEVICE_TABLE for usbserial.c.  Instead
@@ -50,7 +49,6 @@
    drivers depend on it.
 */
 
-static bool debug;
 /* initially all NULL */
 static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
 static DEFINE_MUTEX(table_lock);
@@ -87,7 +85,7 @@ static struct usb_serial *get_free_serial(struct usb_serial *serial,
 	unsigned int i, j;
 	int good_spot;
 
-	dbg("%s %d", __func__, num_ports);
+	dev_dbg(&serial->interface->dev, "%s %d\n", __func__, num_ports);
 
 	*minor = 0;
 	mutex_lock(&table_lock);
@@ -107,7 +105,7 @@ static struct usb_serial *get_free_serial(struct usb_serial *serial,
 
 		*minor = i;
 		j = 0;
-		dbg("%s - minor base = %d", __func__, *minor);
+		dev_dbg(&serial->interface->dev, "%s - minor base = %d\n", __func__, *minor);
 		for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) {
 			serial_table[i] = serial;
 			serial->port[j++]->number = i;
@@ -123,8 +121,6 @@ static void return_serial(struct usb_serial *serial)
 {
 	int i;
 
-	dbg("%s", __func__);
-
 	mutex_lock(&table_lock);
 	for (i = 0; i < serial->num_ports; ++i)
 		serial_table[serial->minor + i] = NULL;
@@ -139,8 +135,6 @@ static void destroy_serial(struct kref *kref)
 
 	serial = to_usb_serial(kref);
 
-	dbg("%s - %s", __func__, serial->type->description);
-
 	/* return the minor range that this device had */
 	if (serial->minor != SERIAL_TTY_NO_MINOR)
 		return_serial(serial);
@@ -191,8 +185,6 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
 	struct usb_serial_port *port;
 	int retval = -ENODEV;
 
-	dbg("%s", __func__);
-
 	serial = usb_serial_get_by_index(idx);
 	if (!serial)
 		return retval;
@@ -207,7 +199,7 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
 	if (retval)
 		goto error_get_interface;
 
-	retval = tty_standard_install(driver, tty);
+	retval = tty_port_install(&port->port, driver, tty);
 	if (retval)
 		goto error_init_termios;
 
@@ -256,7 +248,7 @@ static int serial_open(struct tty_struct *tty, struct file *filp)
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 	return tty_port_open(&port->port, tty, filp);
 }
 
@@ -287,14 +279,16 @@ static void serial_down(struct tty_port *tport)
 static void serial_hangup(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 	tty_port_hangup(&port->port);
 }
 
 static void serial_close(struct tty_struct *tty, struct file *filp)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 	tty_port_close(&port->port, tty, filp);
 }
 
@@ -305,8 +299,7 @@ static void serial_close(struct tty_struct *tty, struct file *filp)
  * Do the resource freeing and refcount dropping for the port.
  * Avoid freeing the console.
  *
- * Called asynchronously after the last tty kref is dropped,
- * and the tty layer has already done the tty_shutdown(tty);
+ * Called asynchronously after the last tty kref is dropped.
  */
 static void serial_cleanup(struct tty_struct *tty)
 {
@@ -320,7 +313,7 @@ static void serial_cleanup(struct tty_struct *tty)
 	if (port->port.console)
 		return;
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	tty->driver_data = NULL;
 
@@ -345,7 +338,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf,
 	if (port->serial->dev->state == USB_STATE_NOTATTACHED)
 		goto exit;
 
-	dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
+	dev_dbg(tty->dev, "%s - port %d, %d byte(s)\n", __func__,
+		port->number, count);
 
 	/* pass on to the driver specific version of this function */
 	retval = port->serial->type->write(tty, port, buf, count);
@@ -358,7 +352,8 @@ exit:
 static int serial_write_room(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 	/* pass on to the driver specific version of this function */
 	return port->serial->type->write_room(tty);
 }
@@ -366,7 +361,8 @@ static int serial_write_room(struct tty_struct *tty)
 static int serial_chars_in_buffer(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	/* if the device was unplugged then any remaining characters
 	   fell out of the connector ;) */
@@ -379,7 +375,8 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
 static void serial_throttle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	/* pass on to the driver specific version of this function */
 	if (port->serial->type->throttle)
@@ -389,7 +386,8 @@ static void serial_throttle(struct tty_struct *tty)
 static void serial_unthrottle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	/* pass on to the driver specific version of this function */
 	if (port->serial->type->unthrottle)
@@ -402,7 +400,8 @@ static int serial_ioctl(struct tty_struct *tty,
 	struct usb_serial_port *port = tty->driver_data;
 	int retval = -ENODEV;
 
-	dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
+	dev_dbg(tty->dev, "%s - port %d, cmd 0x%.4x\n", __func__,
+		port->number, cmd);
 
 	/* pass on to the driver specific version of this function
 	   if it is available */
@@ -416,21 +415,22 @@ static int serial_ioctl(struct tty_struct *tty,
 static void serial_set_termios(struct tty_struct *tty, struct ktermios *old)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	dbg("%s - port %d", __func__, port->number);
+
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	/* pass on to the driver specific version of this function
 	   if it is available */
 	if (port->serial->type->set_termios)
 		port->serial->type->set_termios(tty, port, old);
 	else
-		tty_termios_copy_hw(tty->termios, old);
+		tty_termios_copy_hw(&tty->termios, old);
 }
 
 static int serial_break(struct tty_struct *tty, int break_state)
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	/* pass on to the driver specific version of this function
 	   if it is available */
@@ -445,7 +445,6 @@ static int serial_proc_show(struct seq_file *m, void *v)
 	int i;
 	char tmp[40];
 
-	dbg("%s", __func__);
 	seq_puts(m, "usbserinfo:1.0 driver:2.0\n");
 	for (i = 0; i < SERIAL_TTY_MINORS; ++i) {
 		serial = usb_serial_get_by_index(i);
@@ -490,7 +489,7 @@ static int serial_tiocmget(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	if (port->serial->type->tiocmget)
 		return port->serial->type->tiocmget(tty);
@@ -502,7 +501,7 @@ static int serial_tiocmset(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	if (port->serial->type->tiocmset)
 		return port->serial->type->tiocmset(tty, set, clear);
@@ -514,7 +513,7 @@ static int serial_get_icount(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s - port %d", __func__, port->number);
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
 
 	if (port->serial->type->get_icount)
 		return port->serial->type->get_icount(tty, icount);
@@ -538,12 +537,12 @@ static void usb_serial_port_work(struct work_struct *work)
 		container_of(work, struct usb_serial_port, work);
 	struct tty_struct *tty;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	tty = tty_port_tty_get(&port->port);
 	if (!tty)
 		return;
 
+	dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
+
 	tty_wakeup(tty);
 	tty_kref_put(tty);
 }
@@ -576,7 +575,7 @@ static void port_release(struct device *dev)
 	struct usb_serial_port *port = to_usb_serial_port(dev);
 	int i;
 
-	dbg ("%s - %s", __func__, dev_name(dev));
+	dev_dbg(dev, "%s\n", __func__);
 
 	/*
 	 * Stop all the traffic before cancelling the work, so that
@@ -645,12 +644,12 @@ static const struct usb_device_id *get_iface_id(struct usb_serial_driver *drv,
 
 	id = usb_match_id(intf, drv->id_table);
 	if (id) {
-		dbg("static descriptor matches");
+		dev_dbg(&intf->dev, "static descriptor matches\n");
 		goto exit;
 	}
 	id = match_dynamic_id(intf, drv);
 	if (id)
-		dbg("dynamic descriptor matches");
+		dev_dbg(&intf->dev, "dynamic descriptor matches\n");
 exit:
 	return id;
 }
@@ -704,6 +703,7 @@ static const struct tty_port_operations serial_port_ops = {
 static int usb_serial_probe(struct usb_interface *interface,
 			       const struct usb_device_id *id)
 {
+	struct device *ddev = &interface->dev;
 	struct usb_device *dev = interface_to_usbdev(interface);
 	struct usb_serial *serial = NULL;
 	struct usb_serial_port *port;
@@ -730,13 +730,13 @@ static int usb_serial_probe(struct usb_interface *interface,
 	type = search_serial_device(interface);
 	if (!type) {
 		mutex_unlock(&table_lock);
-		dbg("none matched");
+		dev_dbg(ddev, "none matched\n");
 		return -ENODEV;
 	}
 
 	if (!try_module_get(type->driver.owner)) {
 		mutex_unlock(&table_lock);
-		dev_err(&interface->dev, "module get failed, exiting\n");
+		dev_err(ddev, "module get failed, exiting\n");
 		return -EIO;
 	}
 	mutex_unlock(&table_lock);
@@ -744,7 +744,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 	serial = create_serial(dev, interface, type);
 	if (!serial) {
 		module_put(type->driver.owner);
-		dev_err(&interface->dev, "%s - out of memory\n", __func__);
+		dev_err(ddev, "%s - out of memory\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -756,7 +756,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 		retval = type->probe(serial, id);
 
 		if (retval) {
-			dbg("sub driver rejected device");
+			dev_dbg(ddev, "sub driver rejected device\n");
 			usb_serial_put(serial);
 			module_put(type->driver.owner);
 			return retval;
@@ -771,28 +771,28 @@ static int usb_serial_probe(struct usb_interface *interface,
 
 		if (usb_endpoint_is_bulk_in(endpoint)) {
 			/* we found a bulk in endpoint */
-			dbg("found bulk in on endpoint %d", i);
+			dev_dbg(ddev, "found bulk in on endpoint %d\n", i);
 			bulk_in_endpoint[num_bulk_in] = endpoint;
 			++num_bulk_in;
 		}
 
 		if (usb_endpoint_is_bulk_out(endpoint)) {
 			/* we found a bulk out endpoint */
-			dbg("found bulk out on endpoint %d", i);
+			dev_dbg(ddev, "found bulk out on endpoint %d\n", i);
 			bulk_out_endpoint[num_bulk_out] = endpoint;
 			++num_bulk_out;
 		}
 
 		if (usb_endpoint_is_int_in(endpoint)) {
 			/* we found a interrupt in endpoint */
-			dbg("found interrupt in on endpoint %d", i);
+			dev_dbg(ddev, "found interrupt in on endpoint %d\n", i);
 			interrupt_in_endpoint[num_interrupt_in] = endpoint;
 			++num_interrupt_in;
 		}
 
 		if (usb_endpoint_is_int_out(endpoint)) {
 			/* we found an interrupt out endpoint */
-			dbg("found interrupt out on endpoint %d", i);
+			dev_dbg(ddev, "found interrupt out on endpoint %d\n", i);
 			interrupt_out_endpoint[num_interrupt_out] = endpoint;
 			++num_interrupt_out;
 		}
@@ -816,7 +816,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 				endpoint = &iface_desc->endpoint[i].desc;
 				if (usb_endpoint_is_int_in(endpoint)) {
 					/* we found a interrupt in endpoint */
-					dbg("found interrupt in for Prolific device on separate interface");
+					dev_dbg(ddev, "found interrupt in for Prolific device on separate interface\n");
 					interrupt_in_endpoint[num_interrupt_in] = endpoint;
 					++num_interrupt_in;
 				}
@@ -828,7 +828,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 		 * properly during a later invocation of usb_serial_probe
 		 */
 		if (num_bulk_in == 0 || num_bulk_out == 0) {
-			dev_info(&interface->dev, "PL-2303 hack: descriptors matched but endpoints did not\n");
+			dev_info(ddev, "PL-2303 hack: descriptors matched but endpoints did not\n");
 			usb_serial_put(serial);
 			module_put(type->driver.owner);
 			return -ENODEV;
@@ -841,14 +841,13 @@ static int usb_serial_probe(struct usb_interface *interface,
 	if (type == &usb_serial_generic_device) {
 		num_ports = num_bulk_out;
 		if (num_ports == 0) {
-			dev_err(&interface->dev,
-			    "Generic device with no bulk out, not allowed.\n");
+			dev_err(ddev, "Generic device with no bulk out, not allowed.\n");
 			usb_serial_put(serial);
 			module_put(type->driver.owner);
 			return -EIO;
 		}
-		dev_info(&interface->dev, "The \"generic\" usb-serial driver is only for testing and one-off prototypes.\n");
-		dev_info(&interface->dev, "Tell linux-usb@vger.kernel.org to add your device to a proper driver.\n");
+		dev_info(ddev, "The \"generic\" usb-serial driver is only for testing and one-off prototypes.\n");
+		dev_info(ddev, "Tell linux-usb@vger.kernel.org to add your device to a proper driver.\n");
 	}
 #endif
 	if (!num_ports) {
@@ -866,8 +865,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 	serial->num_interrupt_out = num_interrupt_out;
 
 	/* found all that we need */
-	dev_info(&interface->dev, "%s converter detected\n",
-			type->description);
+	dev_info(ddev, "%s converter detected\n", type->description);
 
 	/* create our ports, we need as many as the max endpoints */
 	/* we don't use num_ports here because some devices have more
@@ -878,8 +876,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 	max_endpoints = max(max_endpoints, (int)serial->num_ports);
 	serial->num_port_pointers = max_endpoints;
 
-	dbg("%s - setting up %d port structures for this device",
-						__func__, max_endpoints);
+	dev_dbg(ddev, "setting up %d port structures for this device", max_endpoints);
 	for (i = 0; i < max_endpoints; ++i) {
 		port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
 		if (!port)
@@ -912,15 +909,13 @@ static int usb_serial_probe(struct usb_interface *interface,
 			set_bit(j, &port->read_urbs_free);
 			port->read_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
 			if (!port->read_urbs[j]) {
-				dev_err(&interface->dev,
-						"No free urbs available\n");
+				dev_err(ddev, "No free urbs available\n");
 				goto probe_error;
 			}
 			port->bulk_in_buffers[j] = kmalloc(buffer_size,
 								GFP_KERNEL);
 			if (!port->bulk_in_buffers[j]) {
-				dev_err(&interface->dev,
-					"Couldn't allocate bulk_in_buffer\n");
+				dev_err(ddev, "Couldn't allocate bulk_in_buffer\n");
 				goto probe_error;
 			}
 			usb_fill_bulk_urb(port->read_urbs[j], dev,
@@ -950,15 +945,13 @@ static int usb_serial_probe(struct usb_interface *interface,
 			set_bit(j, &port->write_urbs_free);
 			port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
 			if (!port->write_urbs[j]) {
-				dev_err(&interface->dev,
-						"No free urbs available\n");
+				dev_err(ddev, "No free urbs available\n");
 				goto probe_error;
 			}
 			port->bulk_out_buffers[j] = kmalloc(buffer_size,
 								GFP_KERNEL);
 			if (!port->bulk_out_buffers[j]) {
-				dev_err(&interface->dev,
-					"Couldn't allocate bulk_out_buffer\n");
+				dev_err(ddev, "Couldn't allocate bulk_out_buffer\n");
 				goto probe_error;
 			}
 			usb_fill_bulk_urb(port->write_urbs[j], dev,
@@ -979,8 +972,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 			port = serial->port[i];
 			port->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
 			if (!port->interrupt_in_urb) {
-				dev_err(&interface->dev,
-						"No free urbs available\n");
+				dev_err(ddev, "No free urbs available\n");
 				goto probe_error;
 			}
 			buffer_size = usb_endpoint_maxp(endpoint);
@@ -989,8 +981,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 			port->interrupt_in_buffer = kmalloc(buffer_size,
 								GFP_KERNEL);
 			if (!port->interrupt_in_buffer) {
-				dev_err(&interface->dev,
-				    "Couldn't allocate interrupt_in_buffer\n");
+				dev_err(ddev, "Couldn't allocate interrupt_in_buffer\n");
 				goto probe_error;
 			}
 			usb_fill_int_urb(port->interrupt_in_urb, dev,
@@ -1001,7 +992,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 				endpoint->bInterval);
 		}
 	} else if (num_interrupt_in) {
-		dbg("the device claims to support interrupt in transfers, but read_int_callback is not defined");
+		dev_dbg(ddev, "The device claims to support interrupt in transfers, but read_int_callback is not defined\n");
 	}
 
 	if (serial->type->write_int_callback) {
@@ -1010,8 +1001,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 			port = serial->port[i];
 			port->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
 			if (!port->interrupt_out_urb) {
-				dev_err(&interface->dev,
-						"No free urbs available\n");
+				dev_err(ddev, "No free urbs available\n");
 				goto probe_error;
 			}
 			buffer_size = usb_endpoint_maxp(endpoint);
@@ -1021,8 +1011,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 			port->interrupt_out_buffer = kmalloc(buffer_size,
 								GFP_KERNEL);
 			if (!port->interrupt_out_buffer) {
-				dev_err(&interface->dev,
-				  "Couldn't allocate interrupt_out_buffer\n");
+				dev_err(ddev, "Couldn't allocate interrupt_out_buffer\n");
 				goto probe_error;
 			}
 			usb_fill_int_urb(port->interrupt_out_urb, dev,
@@ -1033,7 +1022,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 				endpoint->bInterval);
 		}
 	} else if (num_interrupt_out) {
-		dbg("the device claims to support interrupt out transfers, but write_int_callback is not defined");
+		dev_dbg(ddev, "The device claims to support interrupt out transfers, but write_int_callback is not defined\n");
 	}
 
 	usb_set_intfdata(interface, serial);
@@ -1061,7 +1050,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 	serial->disconnected = 1;
 
 	if (get_free_serial(serial, num_ports, &minor) == NULL) {
-		dev_err(&interface->dev, "No more free serial devices\n");
+		dev_err(ddev, "No more free serial devices\n");
 		goto probe_error;
 	}
 	serial->minor = minor;
@@ -1070,18 +1059,17 @@ static int usb_serial_probe(struct usb_interface *interface,
 	for (i = 0; i < num_ports; ++i) {
 		port = serial->port[i];
 		dev_set_name(&port->dev, "ttyUSB%d", port->number);
-		dbg ("%s - registering %s", __func__, dev_name(&port->dev));
+		dev_dbg(ddev, "registering %s", dev_name(&port->dev));
 		device_enable_async_suspend(&port->dev);
 
 		retval = device_add(&port->dev);
 		if (retval)
-			dev_err(&port->dev, "Error registering port device, "
-				"continuing\n");
+			dev_err(ddev, "Error registering port device, continuing\n");
 	}
 
 	serial->disconnected = 0;
 
-	usb_serial_console_init(debug, minor);
+	usb_serial_console_init(minor);
 exit:
 	module_put(type->driver.owner);
 	return 0;
@@ -1100,7 +1088,6 @@ static void usb_serial_disconnect(struct usb_interface *interface)
 	struct usb_serial_port *port;
 
 	usb_serial_console_disconnect(serial);
-	dbg("%s", __func__);
 
 	mutex_lock(&serial->disc_mutex);
 	/* must set a flag, to signal subdrivers */
@@ -1235,8 +1222,7 @@ static int __init usb_serial_init(void)
 
 	result = bus_register(&usb_serial_bus_type);
 	if (result) {
-		printk(KERN_ERR "usb-serial: %s - registering bus driver "
-		       "failed\n", __func__);
+		pr_err("%s - registering bus driver failed\n", __func__);
 		goto exit_bus;
 	}
 
@@ -1256,29 +1242,24 @@ static int __init usb_serial_init(void)
 	tty_set_operations(usb_serial_tty_driver, &serial_ops);
 	result = tty_register_driver(usb_serial_tty_driver);
 	if (result) {
-		printk(KERN_ERR "usb-serial: %s - tty_register_driver failed\n",
-		       __func__);
+		pr_err("%s - tty_register_driver failed\n", __func__);
 		goto exit_reg_driver;
 	}
 
 	/* register the USB driver */
 	result = usb_register(&usb_serial_driver);
 	if (result < 0) {
-		printk(KERN_ERR "usb-serial: %s - usb_register failed\n",
-		       __func__);
+		pr_err("%s - usb_register failed\n", __func__);
 		goto exit_tty;
 	}
 
 	/* register the generic driver, if we should */
-	result = usb_serial_generic_register(debug);
+	result = usb_serial_generic_register();
 	if (result < 0) {
-		printk(KERN_ERR "usb-serial: %s - registering generic "
-		       "driver failed\n", __func__);
+		pr_err("%s - registering generic driver failed\n", __func__);
 		goto exit_generic;
 	}
 
-	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
-
 	return result;
 
 exit_generic:
@@ -1291,8 +1272,7 @@ exit_reg_driver:
 	bus_unregister(&usb_serial_bus_type);
 
 exit_bus:
-	printk(KERN_ERR "usb-serial: %s - returning with error %d\n",
-	       __func__, result);
+	pr_err("%s - returning with error %d\n", __func__, result);
 	put_tty_driver(usb_serial_tty_driver);
 	return result;
 }
@@ -1318,7 +1298,7 @@ module_exit(usb_serial_exit);
 	do {								\
 		if (!type->function) {					\
 			type->function = usb_serial_generic_##function;	\
-			dbg("Had to override the " #function		\
+			pr_debug("Had to override the " #function	\
 				" usb serial operation with the generic one.");\
 			}						\
 	} while (0)
@@ -1361,12 +1341,10 @@ static int usb_serial_register(struct usb_serial_driver *driver)
 
 	retval = usb_serial_bus_register(driver);
 	if (retval) {
-		printk(KERN_ERR "usb-serial: problem %d when registering "
-		       "driver %s\n", retval, driver->description);
+		pr_err("problem %d when registering driver %s\n", retval, driver->description);
 		list_del(&driver->driver_list);
 	} else
-		printk(KERN_INFO "USB Serial support registered for %s\n",
-						driver->description);
+		pr_info("USB Serial support registered for %s\n", driver->description);
 
 	mutex_unlock(&table_lock);
 	return retval;
@@ -1374,8 +1352,7 @@ static int usb_serial_register(struct usb_serial_driver *driver)
 
 static void usb_serial_deregister(struct usb_serial_driver *device)
 {
-	printk(KERN_INFO "USB Serial deregistering driver %s\n",
-	       device->description);
+	pr_info("USB Serial deregistering driver %s\n", device->description);
 	mutex_lock(&table_lock);
 	list_del(&device->driver_list);
 	usb_serial_bus_deregister(device);
@@ -1426,9 +1403,10 @@ int usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[]
 
 	/* we only set the reset_resume field if the serial_driver has one */
 	for (sd = serial_drivers; *sd; ++sd) {
-		if ((*sd)->reset_resume)
+		if ((*sd)->reset_resume) {
 			udriver->reset_resume = usb_serial_reset_resume;
 			break;
+		}
 	}
 
 	rc = usb_register(udriver);
@@ -1478,6 +1456,3 @@ EXPORT_SYMBOL_GPL(usb_serial_deregister_drivers);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index c47b6ec0306..1f034d2397c 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -9,8 +9,7 @@ extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on);
 extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port);
 extern void usb_wwan_close(struct usb_serial_port *port);
 extern int usb_wwan_startup(struct usb_serial *serial);
-extern void usb_wwan_disconnect(struct usb_serial *serial);
-extern void usb_wwan_release(struct usb_serial *serial);
+extern int usb_wwan_port_remove(struct usb_serial_port *port);
 extern int usb_wwan_write_room(struct tty_struct *tty);
 extern void usb_wwan_set_termios(struct tty_struct *tty,
 				 struct usb_serial_port *port,
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index f35971dff4a..e42aa398ed3 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -37,8 +37,6 @@
 #include <linux/serial.h>
 #include "usb-wwan.h"
 
-static bool debug;
-
 void usb_wwan_dtr_rts(struct usb_serial_port *port, int on)
 {
 	struct usb_serial *serial = port->serial;
@@ -67,7 +65,7 @@ void usb_wwan_set_termios(struct tty_struct *tty,
 	struct usb_wwan_intf_private *intfdata = port->serial->private;
 
 	/* Doesn't support option setting */
-	tty_termios_copy_hw(tty->termios, old_termios);
+	tty_termios_copy_hw(&tty->termios, old_termios);
 
 	if (intfdata->send_setup)
 		intfdata->send_setup(port);
@@ -178,7 +176,7 @@ int usb_wwan_ioctl(struct tty_struct *tty,
 {
 	struct usb_serial_port *port = tty->driver_data;
 
-	dbg("%s cmd 0x%04x", __func__, cmd);
+	dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
@@ -191,7 +189,7 @@ int usb_wwan_ioctl(struct tty_struct *tty,
 		break;
 	}
 
-	dbg("%s arg not supported", __func__);
+	dev_dbg(&port->dev, "%s arg not supported\n", __func__);
 
 	return -ENOIOCTLCMD;
 }
@@ -212,7 +210,7 @@ int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 	portdata = usb_get_serial_port_data(port);
 	intfdata = port->serial->private;
 
-	dbg("%s: write (%d chars)", __func__, count);
+	dev_dbg(&port->dev, "%s: write (%d chars)\n", __func__, count);
 
 	i = 0;
 	left = count;
@@ -229,8 +227,8 @@ int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 			usb_unlink_urb(this_urb);
 			continue;
 		}
-		dbg("%s: endpoint %d buf %d", __func__,
-		    usb_pipeendpoint(this_urb->pipe), i);
+		dev_dbg(&port->dev, "%s: endpoint %d buf %d\n", __func__,
+			usb_pipeendpoint(this_urb->pipe), i);
 
 		err = usb_autopm_get_interface_async(port->serial->interface);
 		if (err < 0)
@@ -249,8 +247,9 @@ int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 			spin_unlock_irqrestore(&intfdata->susp_lock, flags);
 			err = usb_submit_urb(this_urb, GFP_ATOMIC);
 			if (err) {
-				dbg("usb_submit_urb %p (write bulk) failed "
-				    "(%d)", this_urb, err);
+				dev_dbg(&port->dev,
+					"usb_submit_urb %p (write bulk) failed (%d)\n",
+					this_urb, err);
 				clear_bit(i, &portdata->out_busy);
 				spin_lock_irqsave(&intfdata->susp_lock, flags);
 				intfdata->in_flight--;
@@ -267,7 +266,7 @@ int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 	}
 
 	count -= left;
-	dbg("%s: wrote (did %d)", __func__, count);
+	dev_dbg(&port->dev, "%s: wrote (did %d)\n", __func__, count);
 	return count;
 }
 EXPORT_SYMBOL(usb_wwan_write);
@@ -278,15 +277,17 @@ static void usb_wwan_indat_callback(struct urb *urb)
 	int endpoint;
 	struct usb_serial_port *port;
 	struct tty_struct *tty;
+	struct device *dev;
 	unsigned char *data = urb->transfer_buffer;
 	int status = urb->status;
 
 	endpoint = usb_pipeendpoint(urb->pipe);
 	port = urb->context;
+	dev = &port->dev;
 
 	if (status) {
-		dbg("%s: nonzero status: %d on endpoint %02x.",
-		    __func__, status, endpoint);
+		dev_dbg(dev, "%s: nonzero status: %d on endpoint %02x.\n",
+			__func__, status, endpoint);
 	} else {
 		tty = tty_port_tty_get(&port->port);
 		if (tty) {
@@ -295,7 +296,7 @@ static void usb_wwan_indat_callback(struct urb *urb)
 						urb->actual_length);
 				tty_flip_buffer_push(tty);
 			} else
-				dbg("%s: empty read urb received", __func__);
+				dev_dbg(dev, "%s: empty read urb received\n", __func__);
 			tty_kref_put(tty);
 		}
 
@@ -303,8 +304,7 @@ static void usb_wwan_indat_callback(struct urb *urb)
 		err = usb_submit_urb(urb, GFP_ATOMIC);
 		if (err) {
 			if (err != -EPERM) {
-				printk(KERN_ERR "%s: resubmit read urb failed. "
-					"(%d)", __func__, err);
+				dev_err(dev, "%s: resubmit read urb failed. (%d)\n", __func__, err);
 				/* busy also in error unless we are killed */
 				usb_mark_last_busy(port->serial->dev);
 			}
@@ -356,7 +356,7 @@ int usb_wwan_write_room(struct tty_struct *tty)
 			data_len += OUT_BUFLEN;
 	}
 
-	dbg("%s: %d", __func__, data_len);
+	dev_dbg(&port->dev, "%s: %d\n", __func__, data_len);
 	return data_len;
 }
 EXPORT_SYMBOL(usb_wwan_write_room);
@@ -378,7 +378,7 @@ int usb_wwan_chars_in_buffer(struct tty_struct *tty)
 		if (this_urb && test_bit(i, &portdata->out_busy))
 			data_len += this_urb->transfer_buffer_length;
 	}
-	dbg("%s: %d", __func__, data_len);
+	dev_dbg(&port->dev, "%s: %d\n", __func__, data_len);
 	return data_len;
 }
 EXPORT_SYMBOL(usb_wwan_chars_in_buffer);
@@ -401,8 +401,8 @@ int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port)
 			continue;
 		err = usb_submit_urb(urb, GFP_KERNEL);
 		if (err) {
-			dbg("%s: submit urb %d failed (%d) %d",
-			    __func__, i, err, urb->transfer_buffer_length);
+			dev_dbg(&port->dev, "%s: submit urb %d failed (%d) %d\n",
+				__func__, i, err, urb->transfer_buffer_length);
 		}
 	}
 
@@ -458,7 +458,9 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint,
 
 	urb = usb_alloc_urb(0, GFP_KERNEL);	/* No ISO */
 	if (urb == NULL) {
-		dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
+		dev_dbg(&serial->interface->dev,
+			"%s: alloc for endpoint %d failed.\n", __func__,
+			endpoint);
 		return NULL;
 	}
 
@@ -522,8 +524,8 @@ int usb_wwan_startup(struct usb_serial *serial)
 		port = serial->port[i];
 		portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
 		if (!portdata) {
-			dbg("%s: kmalloc for usb_wwan_port_private (%d) failed!.",
-			    __func__, i);
+			dev_dbg(&port->dev, "%s: kmalloc for usb_wwan_port_private (%d) failed!.\n",
+				__func__, i);
 			return 1;
 		}
 		init_usb_anchor(&portdata->delayed);
@@ -548,7 +550,8 @@ int usb_wwan_startup(struct usb_serial *serial)
 			continue;
 		err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 		if (err)
-			dbg("%s: submit irq_in urb failed %d", __func__, err);
+			dev_dbg(&port->dev, "%s: submit irq_in urb failed %d\n",
+				__func__, err);
 	}
 	usb_wwan_setup_urbs(serial);
 	return 0;
@@ -565,62 +568,52 @@ bail_out_error:
 }
 EXPORT_SYMBOL(usb_wwan_startup);
 
-static void stop_read_write_urbs(struct usb_serial *serial)
+int usb_wwan_port_remove(struct usb_serial_port *port)
 {
-	int i, j;
-	struct usb_serial_port *port;
+	int i;
 	struct usb_wwan_port_private *portdata;
 
-	/* Stop reading/writing urbs */
-	for (i = 0; i < serial->num_ports; ++i) {
-		port = serial->port[i];
-		portdata = usb_get_serial_port_data(port);
-		for (j = 0; j < N_IN_URB; j++)
-			usb_kill_urb(portdata->in_urbs[j]);
-		for (j = 0; j < N_OUT_URB; j++)
-			usb_kill_urb(portdata->out_urbs[j]);
+	portdata = usb_get_serial_port_data(port);
+	usb_set_serial_port_data(port, NULL);
+
+	/* Stop reading/writing urbs and free them */
+	for (i = 0; i < N_IN_URB; i++) {
+		usb_kill_urb(portdata->in_urbs[i]);
+		usb_free_urb(portdata->in_urbs[i]);
+		free_page((unsigned long)portdata->in_buffer[i]);
+	}
+	for (i = 0; i < N_OUT_URB; i++) {
+		usb_kill_urb(portdata->out_urbs[i]);
+		usb_free_urb(portdata->out_urbs[i]);
+		kfree(portdata->out_buffer[i]);
 	}
-}
 
-void usb_wwan_disconnect(struct usb_serial *serial)
-{
-	stop_read_write_urbs(serial);
+	/* Now free port private data */
+	kfree(portdata);
+	return 0;
 }
-EXPORT_SYMBOL(usb_wwan_disconnect);
+EXPORT_SYMBOL(usb_wwan_port_remove);
 
-void usb_wwan_release(struct usb_serial *serial)
+#ifdef CONFIG_PM
+static void stop_read_write_urbs(struct usb_serial *serial)
 {
 	int i, j;
 	struct usb_serial_port *port;
 	struct usb_wwan_port_private *portdata;
 
-	/* Now free them */
+	/* Stop reading/writing urbs */
 	for (i = 0; i < serial->num_ports; ++i) {
 		port = serial->port[i];
 		portdata = usb_get_serial_port_data(port);
-
-		for (j = 0; j < N_IN_URB; j++) {
-			usb_free_urb(portdata->in_urbs[j]);
-			free_page((unsigned long)
-				  portdata->in_buffer[j]);
-			portdata->in_urbs[j] = NULL;
-		}
-		for (j = 0; j < N_OUT_URB; j++) {
-			usb_free_urb(portdata->out_urbs[j]);
-			kfree(portdata->out_buffer[j]);
-			portdata->out_urbs[j] = NULL;
-		}
-	}
-
-	/* Now free per port private data */
-	for (i = 0; i < serial->num_ports; i++) {
-		port = serial->port[i];
-		kfree(usb_get_serial_port_data(port));
+		if (!portdata)
+			continue;
+		for (j = 0; j < N_IN_URB; j++)
+			usb_kill_urb(portdata->in_urbs[j]);
+		for (j = 0; j < N_OUT_URB; j++)
+			usb_kill_urb(portdata->out_urbs[j]);
 	}
 }
-EXPORT_SYMBOL(usb_wwan_release);
 
-#ifdef CONFIG_PM
 int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message)
 {
 	struct usb_wwan_intf_private *intfdata = serial->private;
@@ -693,11 +686,11 @@ int usb_wwan_resume(struct usb_serial *serial)
 	for (i = 0; i < serial->num_ports; i++) {
 		port = serial->port[i];
 		if (!port->interrupt_in_urb) {
-			dbg("%s: No interrupt URB for port %d", __func__, i);
+			dev_dbg(&port->dev, "%s: No interrupt URB for port\n", __func__);
 			continue;
 		}
 		err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
-		dbg("Submitted interrupt URB for port %d (result %d)", i, err);
+		dev_dbg(&port->dev, "Submitted interrupt URB for port (result %d)\n", err);
 		if (err < 0) {
 			dev_err(&port->dev, "%s: Error %d for interrupt URB\n",
 				__func__, err);
@@ -712,7 +705,7 @@ int usb_wwan_resume(struct usb_serial *serial)
 
 		/* skip closed ports */
 		spin_lock_irq(&intfdata->susp_lock);
-		if (!portdata->opened) {
+		if (!portdata || !portdata->opened) {
 			spin_unlock_irq(&intfdata->susp_lock);
 			continue;
 		}
@@ -743,6 +736,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug messages");
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index f253c91383d..1129aa73c23 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -51,9 +51,6 @@ static int palm_os_3_probe(struct usb_serial *serial,
 static int palm_os_4_probe(struct usb_serial *serial,
 					const struct usb_device_id *id);
 
-/* Parameters that may be passed into the module. */
-static bool debug;
-
 static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
 		.driver_info = (kernel_ulong_t)&palm_os_3_probe },
@@ -310,8 +307,8 @@ static void visor_read_int_callback(struct urb *urb)
 	 * Rumor has it this endpoint is used to notify when data
 	 * is ready to be read from the bulk ones.
 	 */
-	usb_serial_debug_data(debug, &port->dev, __func__,
-			      urb->actual_length, urb->transfer_buffer);
+	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
+			      urb->transfer_buffer);
 
 exit:
 	result = usb_submit_urb(urb, GFP_ATOMIC);
@@ -443,8 +440,7 @@ static int palm_os_4_probe(struct usb_serial *serial,
 		dev_err(dev, "%s - error %d getting connection info\n",
 			__func__, retval);
 	else
-		usb_serial_debug_data(debug, &serial->dev->dev, __func__,
-				      retval, transfer_buffer);
+		usb_serial_debug_data(dev, __func__, retval, transfer_buffer);
 
 	kfree(transfer_buffer);
 	return 0;
@@ -625,6 +621,3 @@ module_usb_serial_driver(serial_drivers, id_table_combined);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 473635e7f5d..346c7efc20b 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -32,12 +32,9 @@
 #include <linux/serial_reg.h>
 #include <linux/serial.h>
 #include <linux/usb/serial.h>
-#include <linux/firmware.h>
-#include <linux/ihex.h>
+#include <linux/usb/ezusb.h>
 #include "whiteheat.h"			/* WhiteHEAT specific commands */
 
-static bool debug;
-
 #ifndef CMSPAR
 #define CMSPAR 0
 #endif
@@ -195,84 +192,15 @@ static int firm_report_tx_done(struct usb_serial_port *port);
 static int whiteheat_firmware_download(struct usb_serial *serial,
 					const struct usb_device_id *id)
 {
-	int response, ret = -ENOENT;
-	const struct firmware *loader_fw = NULL, *firmware_fw = NULL;
-	const struct ihex_binrec *record;
+	int response;
 
-	if (request_ihex_firmware(&firmware_fw, "whiteheat.fw",
-				  &serial->dev->dev)) {
-		dev_err(&serial->dev->dev,
-			"%s - request \"whiteheat.fw\" failed\n", __func__);
-		goto out;
-	}
-	if (request_ihex_firmware(&loader_fw, "whiteheat_loader.fw",
-			     &serial->dev->dev)) {
-		dev_err(&serial->dev->dev,
-			"%s - request \"whiteheat_loader.fw\" failed\n",
-			__func__);
-		goto out;
+	response = ezusb_fx1_ihex_firmware_download(serial->dev, "whiteheat_loader.fw");
+	if (response >= 0) {
+		response = ezusb_fx1_ihex_firmware_download(serial->dev, "whiteheat.fw");
+		if (response >= 0)
+			return 0;
 	}
-	ret = 0;
-	response = ezusb_set_reset (serial, 1);
-
-	record = (const struct ihex_binrec *)loader_fw->data;
-	while (record) {
-		response = ezusb_writememory (serial, be32_to_cpu(record->addr),
-					      (unsigned char *)record->data,
-					      be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "%s - ezusb_writememory "
-				"failed for loader (%d %04X %p %d)\n",
-				__func__, response, be32_to_cpu(record->addr),
-				record->data, be16_to_cpu(record->len));
-			break;
-		}
-		record = ihex_next_binrec(record);
-	}
-
-	response = ezusb_set_reset(serial, 0);
-
-	record = (const struct ihex_binrec *)firmware_fw->data;
-	while (record && be32_to_cpu(record->addr) < 0x1b40)
-		record = ihex_next_binrec(record);
-	while (record) {
-		response = ezusb_writememory (serial, be32_to_cpu(record->addr),
-					      (unsigned char *)record->data,
-					      be16_to_cpu(record->len), 0xa3);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "%s - ezusb_writememory "
-				"failed for first firmware step "
-				"(%d %04X %p %d)\n", __func__, response,
-				be32_to_cpu(record->addr), record->data,
-				be16_to_cpu(record->len));
-			break;
-		}
-		++record;
-	}
-
-	response = ezusb_set_reset(serial, 1);
-
-	record = (const struct ihex_binrec *)firmware_fw->data;
-	while (record && be32_to_cpu(record->addr) < 0x1b40) {
-		response = ezusb_writememory (serial, be32_to_cpu(record->addr),
-					      (unsigned char *)record->data,
-					      be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "%s - ezusb_writememory "
-				"failed for second firmware step "
-				"(%d %04X %p %d)\n", __func__, response,
-				be32_to_cpu(record->addr), record->data,
-				be16_to_cpu(record->len));
-			break;
-		}
-		++record;
-	}
-	ret = 0;
-	response = ezusb_set_reset (serial, 0);
- out:
-	release_firmware(loader_fw);
-	release_firmware(firmware_fw);
-	return ret;
+	return -ENOENT;
 }
 
 
@@ -533,7 +461,7 @@ static int whiteheat_ioctl(struct tty_struct *tty,
 	struct serial_struct serstruct;
 	void __user *user_arg = (void __user *)arg;
 
-	dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
+	dev_dbg(&port->dev, "%s - cmd 0x%.4x\n", __func__, cmd);
 
 	switch (cmd) {
 	case TIOCGSERIAL:
@@ -580,7 +508,7 @@ static void command_port_write_callback(struct urb *urb)
 	int status = urb->status;
 
 	if (status) {
-		dbg("nonzero urb status: %d", status);
+		dev_dbg(&urb->dev->dev, "nonzero urb status: %d\n", status);
 		return;
 	}
 }
@@ -596,19 +524,18 @@ static void command_port_read_callback(struct urb *urb)
 
 	command_info = usb_get_serial_port_data(command_port);
 	if (!command_info) {
-		dbg("%s - command_info is NULL, exiting.", __func__);
+		dev_dbg(&urb->dev->dev, "%s - command_info is NULL, exiting.\n", __func__);
 		return;
 	}
 	if (status) {
-		dbg("%s - nonzero urb status: %d", __func__, status);
+		dev_dbg(&urb->dev->dev, "%s - nonzero urb status: %d\n", __func__, status);
 		if (status != -ENOENT)
 			command_info->command_finished = WHITEHEAT_CMD_FAILURE;
 		wake_up(&command_info->wait_command);
 		return;
 	}
 
-	usb_serial_debug_data(debug, &command_port->dev,
-				__func__, urb->actual_length, data);
+	usb_serial_debug_data(&command_port->dev, __func__, urb->actual_length, data);
 
 	if (data[0] == WHITEHEAT_CMD_COMPLETE) {
 		command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
@@ -619,19 +546,19 @@ static void command_port_read_callback(struct urb *urb)
 	} else if (data[0] == WHITEHEAT_EVENT) {
 		/* These are unsolicited reports from the firmware, hence no
 		   waiting command to wakeup */
-		dbg("%s - event received", __func__);
+		dev_dbg(&urb->dev->dev, "%s - event received\n", __func__);
 	} else if (data[0] == WHITEHEAT_GET_DTR_RTS) {
 		memcpy(command_info->result_buffer, &data[1],
 						urb->actual_length - 1);
 		command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
 		wake_up(&command_info->wait_command);
 	} else
-		dbg("%s - bad reply from firmware", __func__);
+		dev_dbg(&urb->dev->dev, "%s - bad reply from firmware\n", __func__);
 
 	/* Continue trying to always read */
 	result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC);
 	if (result)
-		dbg("%s - failed resubmitting read urb, error %d",
+		dev_dbg(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n",
 			__func__, result);
 }
 
@@ -645,11 +572,12 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command,
 	struct usb_serial_port *command_port;
 	struct whiteheat_command_private *command_info;
 	struct whiteheat_private *info;
+	struct device *dev = &port->dev;
 	__u8 *transfer_buffer;
 	int retval = 0;
 	int t;
 
-	dbg("%s - command %d", __func__, command);
+	dev_dbg(dev, "%s - command %d\n", __func__, command);
 
 	command_port = port->serial->port[COMMAND_PORT];
 	command_info = usb_get_serial_port_data(command_port);
@@ -662,7 +590,7 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command,
 	command_port->write_urb->transfer_buffer_length = datasize + 1;
 	retval = usb_submit_urb(command_port->write_urb, GFP_NOIO);
 	if (retval) {
-		dbg("%s - submit urb failed", __func__);
+		dev_dbg(dev, "%s - submit urb failed\n", __func__);
 		goto exit;
 	}
 
@@ -673,19 +601,19 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command,
 		usb_kill_urb(command_port->write_urb);
 
 	if (command_info->command_finished == false) {
-		dbg("%s - command timed out.", __func__);
+		dev_dbg(dev, "%s - command timed out.\n", __func__);
 		retval = -ETIMEDOUT;
 		goto exit;
 	}
 
 	if (command_info->command_finished == WHITEHEAT_CMD_FAILURE) {
-		dbg("%s - command failed.", __func__);
+		dev_dbg(dev, "%s - command failed.\n", __func__);
 		retval = -EIO;
 		goto exit;
 	}
 
 	if (command_info->command_finished == WHITEHEAT_CMD_COMPLETE) {
-		dbg("%s - command completed.", __func__);
+		dev_dbg(dev, "%s - command completed.\n", __func__);
 		switch (command) {
 		case WHITEHEAT_GET_DTR_RTS:
 			info = usb_get_serial_port_data(port);
@@ -723,8 +651,9 @@ static int firm_close(struct usb_serial_port *port)
 static void firm_setup_port(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
+	struct device *dev = &port->dev;
 	struct whiteheat_port_settings port_settings;
-	unsigned int cflag = tty->termios->c_cflag;
+	unsigned int cflag = tty->termios.c_cflag;
 
 	port_settings.port = port->number + 1;
 
@@ -736,7 +665,7 @@ static void firm_setup_port(struct tty_struct *tty)
 	default:
 	case CS8:	port_settings.bits = 8;   break;
 	}
-	dbg("%s - data bits = %d", __func__, port_settings.bits);
+	dev_dbg(dev, "%s - data bits = %d\n", __func__, port_settings.bits);
 
 	/* determine the parity */
 	if (cflag & PARENB)
@@ -752,14 +681,14 @@ static void firm_setup_port(struct tty_struct *tty)
 				port_settings.parity = WHITEHEAT_PAR_EVEN;
 	else
 		port_settings.parity = WHITEHEAT_PAR_NONE;
-	dbg("%s - parity = %c", __func__, port_settings.parity);
+	dev_dbg(dev, "%s - parity = %c\n", __func__, port_settings.parity);
 
 	/* figure out the stop bits requested */
 	if (cflag & CSTOPB)
 		port_settings.stop = 2;
 	else
 		port_settings.stop = 1;
-	dbg("%s - stop bits = %d", __func__, port_settings.stop);
+	dev_dbg(dev, "%s - stop bits = %d\n", __func__, port_settings.stop);
 
 	/* figure out the flow control settings */
 	if (cflag & CRTSCTS)
@@ -767,7 +696,7 @@ static void firm_setup_port(struct tty_struct *tty)
 						WHITEHEAT_HFLOW_RTS);
 	else
 		port_settings.hflow = WHITEHEAT_HFLOW_NONE;
-	dbg("%s - hardware flow control = %s %s %s %s", __func__,
+	dev_dbg(dev, "%s - hardware flow control = %s %s %s %s\n", __func__,
 	    (port_settings.hflow & WHITEHEAT_HFLOW_CTS) ? "CTS" : "",
 	    (port_settings.hflow & WHITEHEAT_HFLOW_RTS) ? "RTS" : "",
 	    (port_settings.hflow & WHITEHEAT_HFLOW_DSR) ? "DSR" : "",
@@ -778,16 +707,15 @@ static void firm_setup_port(struct tty_struct *tty)
 		port_settings.sflow = WHITEHEAT_SFLOW_RXTX;
 	else
 		port_settings.sflow = WHITEHEAT_SFLOW_NONE;
-	dbg("%s - software flow control = %c", __func__, port_settings.sflow);
+	dev_dbg(dev, "%s - software flow control = %c\n", __func__, port_settings.sflow);
 
 	port_settings.xon = START_CHAR(tty);
 	port_settings.xoff = STOP_CHAR(tty);
-	dbg("%s - XON = %2x, XOFF = %2x",
-			__func__, port_settings.xon, port_settings.xoff);
+	dev_dbg(dev, "%s - XON = %2x, XOFF = %2x\n", __func__, port_settings.xon, port_settings.xoff);
 
 	/* get the baud rate wanted */
 	port_settings.baud = tty_get_baud_rate(tty);
-	dbg("%s - baud rate = %d", __func__, port_settings.baud);
+	dev_dbg(dev, "%s - baud rate = %d\n", __func__, port_settings.baud);
 
 	/* fixme: should set validated settings */
 	tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
@@ -918,6 +846,3 @@ MODULE_LICENSE("GPL");
 
 MODULE_FIRMWARE("whiteheat.fw");
 MODULE_FIRMWARE("whiteheat_loader.fw");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c
new file mode 100644
index 00000000000..39ee7373b4e
--- /dev/null
+++ b/drivers/usb/serial/zte_ev.c
@@ -0,0 +1,307 @@
+/*
+ * ZTE_EV USB serial driver
+ *
+ * Copyright (C) 2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+ * Copyright (C) 2012 Linux Foundation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This driver is based on code found in a ZTE_ENV patch that modified
+ * the usb-serial generic driver.  Comments were left in that I think
+ * show the commands used to talk to the device, but I am not sure.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/uaccess.h>
+
+#define  MAX_SETUP_DATA_SIZE	32
+
+static void debug_data(struct device *dev, const char *function, int len,
+		       const unsigned char *data, int result)
+{
+	dev_dbg(dev, "result = %d\n", result);
+	if (result == len)
+		dev_dbg(dev, "%s - length = %d, data = %*ph\n", function,
+			len, len, data);
+}
+
+static int zte_ev_usb_serial_open(struct tty_struct *tty,
+				  struct usb_serial_port *port)
+{
+	struct usb_device *udev = port->serial->dev;
+	struct device *dev = &port->dev;
+	int result = 0;
+	int len;
+	unsigned char *buf;
+
+	if (port->number != 0)
+		return -ENODEV;
+
+	buf = kmalloc(MAX_SETUP_DATA_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	/* send 1st ctl cmd(CTL    21 22 01 00  00 00 00 00) */
+	len = 0;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x22, 0x21,
+				 0x0001, 0x0000, NULL, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	dev_dbg(dev, "result = %d\n", result);
+
+	/* send  2st cmd and recieve data */
+	/*
+	 * 16.0  CTL    a1 21 00 00  00 00 07 00   CLASS              25.1.0(5)
+	 * 16.0  DI     00 96 00 00  00 00 08
+	 */
+	len = 0x0007;
+	result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+				 0x21, 0xa1,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 3 cmd */
+	/*
+	 * 16.0 CTL    21 20 00 00  00 00 07 00    CLASS                30.1.0
+	 * 16.0 DO     80 25 00 00  00 00 08       .%.....              30.2.0
+	 */
+	len = 0x0007;
+	buf[0] = 0x80;
+	buf[1] = 0x25;
+	buf[2] = 0x00;
+	buf[3] = 0x00;
+	buf[4] = 0x00;
+	buf[5] = 0x00;
+	buf[6] = 0x08;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x20, 0x21,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 4 cmd */
+	/*
+	 * 16.0 CTL    21 22 03 00  00 00 00 00
+	 */
+	len = 0;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x22, 0x21,
+				 0x0003, 0x0000, NULL, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	dev_dbg(dev, "result = %d\n", result);
+
+	/* send 5 cmd */
+	/*
+	 * 16.0  CTL    a1 21 00 00  00 00 07 00   CLASS               33.1.0
+	 * 16.0  DI     80 25 00 00  00 00 08
+	 */
+	len = 0x0007;
+	result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+				 0x21, 0xa1,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 6 cmd */
+	/*
+	 * 16.0  CTL    21 20 00 00  00 00 07 00    CLASS               34.1.0
+	 * 16.0  DO     80 25 00 00  00 00 08
+	 */
+	len = 0x0007;
+	buf[0] = 0x80;
+	buf[1] = 0x25;
+	buf[2] = 0x00;
+	buf[3] = 0x00;
+	buf[4] = 0x00;
+	buf[5] = 0x00;
+	buf[6] = 0x08;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x20, 0x21,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+	kfree(buf);
+
+	return usb_serial_generic_open(tty, port);
+}
+
+/*
+ *       CTL    21 22 02 00  00 00 00 00         CLASS               338.1.0
+ *
+ * 16.1  DI     a1 20 00 00  00 00 02 00  02 00  . ........          340.1.0
+ * 16.0  CTL    21 22 03 00  00 00 00 00         CLASS               341.1.0
+ *
+ * 16.0  CTL    a1 21 00 00  00 00 07 00         CLASS               346.1.0(3)
+ * 16.0  DI     00 08 07 00  00 00 08            .......             346.2.0
+ *
+ * 16.0  CTL    21 20 00 00  00 00 07 00         CLASS               349.1.0
+ * 16.0  DO     00 c2 01 00  00 00 08            .......             349.2.0
+ *
+ * 16.0  CTL    21 22 03 00  00 00 00 00         CLASS               350.1.0(2)
+ *
+ * 16.0  CTL    a1 21 00 00  00 00 07 00         CLASS               352.1.0
+ * 16.0  DI     00 c2 01 00  00 00 08            .......             352.2.0
+ *
+ * 16.1  DI     a1 20 00 00  00 00 02 00  02 00  . ........          353.1.0
+ *
+ * 16.0  CTL    21 20 00 00  00 00 07 00         CLASS               354.1.0
+ * 16.0  DO     00 c2 01 00  00 00 08            .......             354.2.0
+ *
+ * 16.0  CTL    21 22 03 00  00 00 00 00
+*/
+
+static void zte_ev_usb_serial_close(struct usb_serial_port *port)
+{
+	struct usb_device *udev = port->serial->dev;
+	struct device *dev = &port->dev;
+	int result = 0;
+	int len;
+	unsigned char *buf;
+
+	if (port->number != 0)
+		return;
+
+	buf = kmalloc(MAX_SETUP_DATA_SIZE, GFP_KERNEL);
+	if (!buf)
+		return;
+
+	/* send 1st ctl cmd(CTL    21 22 02 00  00 00 00 00) */
+	len = 0;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x22, 0x21,
+				 0x0002, 0x0000, NULL, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	dev_dbg(dev, "result = %d\n", result);
+
+	/* send 2st ctl cmd(CTL    21 22 03 00  00 00 00 00 ) */
+	len = 0;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x22, 0x21,
+				 0x0003, 0x0000, NULL, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	dev_dbg(dev, "result = %d\n", result);
+
+	/* send  3st cmd and recieve data */
+	/*
+	 * 16.0  CTL    a1 21 00 00  00 00 07 00      CLASS         25.1.0(5)
+	 * 16.0  DI     00 08 07 00  00 00 08
+	 */
+	len = 0x0007;
+	result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+				 0x21, 0xa1,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 4 cmd */
+	/*
+	 * 16.0 CTL    21 20 00 00  00 00 07 00      CLASS            30.1.0
+	 * 16.0  DO    00 c2 01 00  00 00 08         .%.....          30.2.0
+	 */
+	len = 0x0007;
+	buf[0] = 0x00;
+	buf[1] = 0xc2;
+	buf[2] = 0x01;
+	buf[3] = 0x00;
+	buf[4] = 0x00;
+	buf[5] = 0x00;
+	buf[6] = 0x08;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x20, 0x21,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 5 cmd */
+	/*
+	 * 16.0 CTL    21 22 03 00  00 00 00 00
+	 */
+	len = 0;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x22, 0x21,
+				 0x0003, 0x0000, NULL, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	dev_dbg(dev, "result = %d\n", result);
+
+	/* send 6 cmd */
+	/*
+	 * 16.0  CTL    a1 21 00 00  00 00 07 00        CLASS          33.1.0
+	 * 16.0  DI     00 c2 01 00  00 00 08
+	 */
+	len = 0x0007;
+	result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+				 0x21, 0xa1,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 7 cmd */
+	/*
+	 * 16.0  CTL    21 20 00 00  00 00 07 00  CLASS               354.1.0
+	 * 16.0  DO     00 c2 01 00  00 00 08     .......             354.2.0
+	 */
+	len = 0x0007;
+	buf[0] = 0x00;
+	buf[1] = 0xc2;
+	buf[2] = 0x01;
+	buf[3] = 0x00;
+	buf[4] = 0x00;
+	buf[5] = 0x00;
+	buf[6] = 0x08;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x20, 0x21,
+				 0x0000, 0x0000, buf, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	debug_data(dev, __func__, len, buf, result);
+
+	/* send 8 cmd */
+	/*
+	 * 16.0 CTL    21 22 03 00  00 00 00 00
+	 */
+	len = 0;
+	result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+				 0x22, 0x21,
+				 0x0003, 0x0000, NULL, len,
+				 HZ * USB_CTRL_GET_TIMEOUT);
+	dev_dbg(dev, "result = %d\n", result);
+
+	kfree(buf);
+
+	usb_serial_generic_close(port);
+}
+
+static const struct usb_device_id id_table[] = {
+	{ USB_DEVICE(0x19d2, 0xffff) },	/* AC8700 */
+	{ USB_DEVICE(0x19d2, 0xfffe) },
+	{ USB_DEVICE(0x19d2, 0xfffd) }, /* MG880 */
+	{ USB_DEVICE(0x05C6, 0x3197) },
+	{ USB_DEVICE(0x05C6, 0x6000) },
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_serial_driver zio_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"zte_ev",
+	},
+	.id_table =		id_table,
+	.num_ports =		1,
+	.open =			zte_ev_usb_serial_open,
+	.close =		zte_ev_usb_serial_close,
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+	&zio_device, NULL
+};
+
+module_usb_serial_driver(serial_drivers, id_table);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index 7691c866637..0ae7bb64b5e 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -213,17 +213,3 @@ config USB_UAS
 	  say 'Y' or 'M' here and the kernel will use the right driver.
 
 	  If you compile this driver as a module, it will be named uas.
-
-config USB_LIBUSUAL
-	bool "The shared table of common (or usual) storage devices"
-	depends on USB
-	help
-	  This module contains a table of common (or usual) devices
-	  for usb-storage and ub drivers, and allows to switch binding
-	  of these devices without rebuilding modules.
-
-	  Typical syntax of /etc/modprobe.d/*conf is:
-
-		options libusual bias="ub"
-
-	  If unsure, say N.
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile
index 82e6416a2d4..4cd55481b30 100644
--- a/drivers/usb/storage/Makefile
+++ b/drivers/usb/storage/Makefile
@@ -12,16 +12,9 @@ obj-$(CONFIG_USB_STORAGE)	+= usb-storage.o
 
 usb-storage-y := scsiglue.o protocol.o transport.o usb.o
 usb-storage-y += initializers.o sierra_ms.o option_ms.o
-
+usb-storage-y += usual-tables.o
 usb-storage-$(CONFIG_USB_STORAGE_DEBUG) += debug.o
 
-ifeq ($(CONFIG_USB_LIBUSUAL),)
-	usb-storage-y		+= usual-tables.o
-else
-	obj-$(CONFIG_USB)	+= usb-libusual.o
-	usb-libusual-y		:= libusual.o usual-tables.o
-endif
-
 obj-$(CONFIG_USB_STORAGE_ALAUDA)	+= ums-alauda.o
 obj-$(CONFIG_USB_STORAGE_CYPRESS_ATACB) += ums-cypress.o
 obj-$(CONFIG_USB_STORAGE_DATAFAB)	+= ums-datafab.o
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index bab8c8fe829..be5564cc8e0 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -137,7 +137,7 @@ static int init_alauda(struct us_data *us);
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id alauda_usb_ids[] = {
 #	include "unusual_alauda.h"
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index 5fe451d16e6..070b5c0ebbf 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -41,7 +41,7 @@ MODULE_LICENSE("GPL");
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id cypress_usb_ids[] = {
 #	include "unusual_cypress.h"
diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c
index 35e9c51e669..494fee5af41 100644
--- a/drivers/usb/storage/datafab.c
+++ b/drivers/usb/storage/datafab.c
@@ -86,7 +86,7 @@ static int datafab_determine_lun(struct us_data *us,
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id datafab_usb_ids[] = {
 #	include "unusual_datafab.h"
diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c
index b28f2ad127d..118b134a1da 100644
--- a/drivers/usb/storage/ene_ub6250.c
+++ b/drivers/usb/storage/ene_ub6250.c
@@ -29,9 +29,21 @@
 #include "protocol.h"
 #include "debug.h"
 
+#define SD_INIT1_FIRMWARE "ene-ub6250/sd_init1.bin"
+#define SD_INIT2_FIRMWARE "ene-ub6250/sd_init2.bin"
+#define SD_RW_FIRMWARE "ene-ub6250/sd_rdwr.bin"
+#define MS_INIT_FIRMWARE "ene-ub6250/ms_init.bin"
+#define MSP_RW_FIRMWARE "ene-ub6250/msp_rdwr.bin"
+#define MS_RW_FIRMWARE "ene-ub6250/ms_rdwr.bin"
+
 MODULE_DESCRIPTION("Driver for ENE UB6250 reader");
 MODULE_LICENSE("GPL");
-
+MODULE_FIRMWARE(SD_INIT1_FIRMWARE);
+MODULE_FIRMWARE(SD_INIT2_FIRMWARE);
+MODULE_FIRMWARE(SD_RW_FIRMWARE);
+MODULE_FIRMWARE(MS_INIT_FIRMWARE);
+MODULE_FIRMWARE(MSP_RW_FIRMWARE);
+MODULE_FIRMWARE(MS_RW_FIRMWARE);
 
 /*
  * The table of devices
@@ -40,7 +52,7 @@ MODULE_LICENSE("GPL");
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-	.driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+	.driver_info = (flags)}
 
 static struct usb_device_id ene_ub6250_usb_ids[] = {
 #	include "unusual_ene_ub6250.h"
@@ -1883,28 +1895,28 @@ static int ene_load_bincode(struct us_data *us, unsigned char flag)
 	/* For SD */
 	case SD_INIT1_PATTERN:
 		US_DEBUGP("SD_INIT1_PATTERN\n");
-		fw_name = "ene-ub6250/sd_init1.bin";
+		fw_name = SD_INIT1_FIRMWARE;
 		break;
 	case SD_INIT2_PATTERN:
 		US_DEBUGP("SD_INIT2_PATTERN\n");
-		fw_name = "ene-ub6250/sd_init2.bin";
+		fw_name = SD_INIT2_FIRMWARE;
 		break;
 	case SD_RW_PATTERN:
-		US_DEBUGP("SD_RDWR_PATTERN\n");
-		fw_name = "ene-ub6250/sd_rdwr.bin";
+		US_DEBUGP("SD_RW_PATTERN\n");
+		fw_name = SD_RW_FIRMWARE;
 		break;
 	/* For MS */
 	case MS_INIT_PATTERN:
 		US_DEBUGP("MS_INIT_PATTERN\n");
-		fw_name = "ene-ub6250/ms_init.bin";
+		fw_name = MS_INIT_FIRMWARE;
 		break;
 	case MSP_RW_PATTERN:
 		US_DEBUGP("MSP_RW_PATTERN\n");
-		fw_name = "ene-ub6250/msp_rdwr.bin";
+		fw_name = MSP_RW_FIRMWARE;
 		break;
 	case MS_RW_PATTERN:
 		US_DEBUGP("MS_RW_PATTERN\n");
-		fw_name = "ene-ub6250/ms_rdwr.bin";
+		fw_name = MS_RW_FIRMWARE;
 		break;
 	default:
 		US_DEBUGP("----------- Unknown PATTERN ----------\n");
diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c
index 042cf9ef315..e6df087dca9 100644
--- a/drivers/usb/storage/freecom.c
+++ b/drivers/usb/storage/freecom.c
@@ -117,7 +117,7 @@ static int init_freecom(struct us_data *us);
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id freecom_usb_ids[] = {
 #	include "unusual_freecom.h"
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 31fa24e7e68..ecea4787736 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -74,7 +74,7 @@ static int isd200_Initialization(struct us_data *us);
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id isd200_usb_ids[] = {
 #	include "unusual_isd200.h"
@@ -83,7 +83,6 @@ static struct usb_device_id isd200_usb_ids[] = {
 MODULE_DEVICE_TABLE(usb, isd200_usb_ids);
 
 #undef UNUSUAL_DEV
-#undef USUAL_DEV
 
 /*
  * The flags table
@@ -105,8 +104,6 @@ static struct us_unusual_dev isd200_unusual_dev_list[] = {
 };
 
 #undef UNUSUAL_DEV
-#undef USUAL_DEV
-
 
 /* Timeout defines (in Seconds) */
 
diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c
index e3b97383186..ddc78780b1a 100644
--- a/drivers/usb/storage/jumpshot.c
+++ b/drivers/usb/storage/jumpshot.c
@@ -69,7 +69,7 @@ MODULE_LICENSE("GPL");
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id jumpshot_usb_ids[] = {
 #	include "unusual_jumpshot.h"
diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c
index a8708eae978..f085ffb606c 100644
--- a/drivers/usb/storage/karma.c
+++ b/drivers/usb/storage/karma.c
@@ -57,7 +57,7 @@ static int rio_karma_init(struct us_data *us);
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id karma_usb_ids[] = {
 #	include "unusual_karma.h"
diff --git a/drivers/usb/storage/libusual.c b/drivers/usb/storage/libusual.c
deleted file mode 100644
index fe3ffe1459b..00000000000
--- a/drivers/usb/storage/libusual.c
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * libusual
- *
- * The libusual contains the table of devices common for ub and usb-storage.
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/usb_usual.h>
-#include <linux/vmalloc.h>
-#include <linux/kthread.h>
-#include <linux/mutex.h>
-
-/*
- */
-#define USU_MOD_FL_THREAD   1	/* Thread is running */
-#define USU_MOD_FL_PRESENT  2	/* The module is loaded */
-
-struct mod_status {
-	unsigned long fls;
-};
-
-static struct mod_status stat[3];
-static DEFINE_SPINLOCK(usu_lock);
-
-/*
- */
-#define USB_US_DEFAULT_BIAS	USB_US_TYPE_STOR
-static atomic_t usu_bias = ATOMIC_INIT(USB_US_DEFAULT_BIAS);
-
-#define BIAS_NAME_SIZE  (sizeof("usb-storage"))
-static const char *bias_names[3] = { "none", "usb-storage", "ub" };
-
-static DEFINE_MUTEX(usu_probe_mutex);
-static DECLARE_COMPLETION(usu_end_notify);
-static atomic_t total_threads = ATOMIC_INIT(0);
-
-static int usu_probe_thread(void *arg);
-
-/*
- * @type: the module type as an integer
- */
-void usb_usual_set_present(int type)
-{
-	struct mod_status *st;
-	unsigned long flags;
-
-	if (type <= 0 || type >= 3)
-		return;
-	st = &stat[type];
-	spin_lock_irqsave(&usu_lock, flags);
-	st->fls |= USU_MOD_FL_PRESENT;
-	spin_unlock_irqrestore(&usu_lock, flags);
-}
-EXPORT_SYMBOL_GPL(usb_usual_set_present);
-
-void usb_usual_clear_present(int type)
-{
-	struct mod_status *st;
-	unsigned long flags;
-
-	if (type <= 0 || type >= 3)
-		return;
-	st = &stat[type];
-	spin_lock_irqsave(&usu_lock, flags);
-	st->fls &= ~USU_MOD_FL_PRESENT;
-	spin_unlock_irqrestore(&usu_lock, flags);
-}
-EXPORT_SYMBOL_GPL(usb_usual_clear_present);
-
-/*
- * Match the calling driver type against the table.
- * Returns: 0 if the device matches.
- */
-int usb_usual_check_type(const struct usb_device_id *id, int caller_type)
-{
-	int id_type = USB_US_TYPE(id->driver_info);
-
-	if (caller_type <= 0 || caller_type >= 3)
-		return -EINVAL;
-
-	/* Drivers grab fixed assignment devices */
-	if (id_type == caller_type)
-		return 0;
-	/* Drivers grab devices biased to them */
-	if (id_type == USB_US_TYPE_NONE && caller_type == atomic_read(&usu_bias))
-		return 0;
-	return -ENODEV;
-}
-EXPORT_SYMBOL_GPL(usb_usual_check_type);
-
-/*
- */
-static int usu_probe(struct usb_interface *intf,
-			 const struct usb_device_id *id)
-{
-	int rc;
-	unsigned long type;
-	struct task_struct* task;
-	unsigned long flags;
-
-	type = USB_US_TYPE(id->driver_info);
-	if (type == 0)
-		type = atomic_read(&usu_bias);
-
-	spin_lock_irqsave(&usu_lock, flags);
-	if ((stat[type].fls & (USU_MOD_FL_THREAD|USU_MOD_FL_PRESENT)) != 0) {
-		spin_unlock_irqrestore(&usu_lock, flags);
-		return -ENXIO;
-	}
-	stat[type].fls |= USU_MOD_FL_THREAD;
-	spin_unlock_irqrestore(&usu_lock, flags);
-
-	task = kthread_run(usu_probe_thread, (void*)type, "libusual_%ld", type);
-	if (IS_ERR(task)) {
-		rc = PTR_ERR(task);
-		printk(KERN_WARNING "libusual: "
-		    "Unable to start the thread for %s: %d\n",
-		    bias_names[type], rc);
-		spin_lock_irqsave(&usu_lock, flags);
-		stat[type].fls &= ~USU_MOD_FL_THREAD;
-		spin_unlock_irqrestore(&usu_lock, flags);
-		return rc;	/* Not being -ENXIO causes a message printed */
-	}
-	atomic_inc(&total_threads);
-
-	return -ENXIO;
-}
-
-static void usu_disconnect(struct usb_interface *intf)
-{
-	;	/* We should not be here. */
-}
-
-static struct usb_driver usu_driver = {
-	.name =		"libusual",
-	.probe =	usu_probe,
-	.disconnect =	usu_disconnect,
-	.id_table =	usb_storage_usb_ids,
-};
-
-/*
- * A whole new thread for a purpose of request_module seems quite stupid.
- * The request_module forks once inside again. However, if we attempt
- * to load a storage module from our own modprobe thread, that module
- * references our symbols, which cannot be resolved until our module is
- * initialized. I wish there was a way to wait for the end of initialization.
- * The module notifier reports MODULE_STATE_COMING only.
- * So, we wait until module->init ends as the next best thing.
- */
-static int usu_probe_thread(void *arg)
-{
-	int type = (unsigned long) arg;
-	struct mod_status *st = &stat[type];
-	int rc;
-	unsigned long flags;
-
-	mutex_lock(&usu_probe_mutex);
-	rc = request_module(bias_names[type]);
-	spin_lock_irqsave(&usu_lock, flags);
-	if (rc == 0 && (st->fls & USU_MOD_FL_PRESENT) == 0) {
-		/*
-		 * This should not happen, but let us keep tabs on it.
-		 */
-		printk(KERN_NOTICE "libusual: "
-		    "modprobe for %s succeeded, but module is not present\n",
-		    bias_names[type]);
-	}
-	st->fls &= ~USU_MOD_FL_THREAD;
-	spin_unlock_irqrestore(&usu_lock, flags);
-	mutex_unlock(&usu_probe_mutex);
-
-	complete_and_exit(&usu_end_notify, 0);
-}
-
-/*
- */
-static int __init usb_usual_init(void)
-{
-	int rc;
-
-	mutex_lock(&usu_probe_mutex);
-	rc = usb_register(&usu_driver);
-	mutex_unlock(&usu_probe_mutex);
-	return rc;
-}
-
-static void __exit usb_usual_exit(void)
-{
-	/*
-	 * We do not check for any drivers present, because
-	 * they keep us pinned with symbol references.
-	 */
-
-	usb_deregister(&usu_driver);
-
-	while (atomic_read(&total_threads) > 0) {
-		wait_for_completion(&usu_end_notify);
-		atomic_dec(&total_threads);
-	}
-}
-
-/*
- * Validate and accept the bias parameter.
- */
-static int usu_set_bias(const char *bias_s, struct kernel_param *kp)
-{
-	int i;
-	int len;
-	int bias_n = 0;
-
-	len = strlen(bias_s);
-	if (len == 0)
-		return -EDOM;
-	if (bias_s[len-1] == '\n')
-		--len;
-
-	for (i = 1; i < 3; i++) {
-		if (strncmp(bias_s, bias_names[i], len) == 0) {
-			bias_n = i;
-			break;
-		}
-	}
-	if (bias_n == 0)
-		return -EINVAL;
-
-	atomic_set(&usu_bias, bias_n);
-	return 0;
-}
-
-static int usu_get_bias(char *buffer, struct kernel_param *kp)
-{
-	return strlen(strcpy(buffer, bias_names[atomic_read(&usu_bias)]));
-}
-
-module_init(usb_usual_init);
-module_exit(usb_usual_exit);
-
-module_param_call(bias, usu_set_bias, usu_get_bias, NULL, S_IRUGO|S_IWUSR);
-__MODULE_PARM_TYPE(bias, "string");
-MODULE_PARM_DESC(bias, "Bias to usb-storage or ub");
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index 886567a3806..cb79de61f4c 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -67,7 +67,7 @@ struct usb_onetouch {
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id onetouch_usb_ids[] = {
 #	include "unusual_onetouch.h"
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 63cf2822e29..d36446dd7ae 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -172,7 +172,7 @@ static int init_realtek_cr(struct us_data *us);
 		    initFunction, flags) \
 {\
 	USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-	.driver_info = (flags)|(USB_US_TYPE_STOR<<24)\
+	.driver_info = (flags) \
 }
 
 static const struct usb_device_id realtek_cr_ids[] = {
diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c
index 3252a62b31b..7bd54e0d512 100644
--- a/drivers/usb/storage/sddr09.c
+++ b/drivers/usb/storage/sddr09.c
@@ -69,7 +69,7 @@ static int usb_stor_sddr09_init(struct us_data *us);
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id sddr09_usb_ids[] = {
 #	include "unusual_sddr09.h"
diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c
index c144078065a..d278c5a99b7 100644
--- a/drivers/usb/storage/sddr55.c
+++ b/drivers/usb/storage/sddr55.c
@@ -46,7 +46,7 @@ MODULE_LICENSE("GPL");
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id sddr55_usb_ids[] = {
 #	include "unusual_sddr55.h"
diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c
index fa1ceebc465..daf2fc58ae0 100644
--- a/drivers/usb/storage/shuttle_usbat.c
+++ b/drivers/usb/storage/shuttle_usbat.c
@@ -168,7 +168,7 @@ static int init_usbat_flash(struct us_data *us);
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+  .driver_info = (flags) }
 
 static struct usb_device_id usbat_usb_ids[] = {
 #	include "unusual_usbat.h"
diff --git a/drivers/usb/storage/sierra_ms.c b/drivers/usb/storage/sierra_ms.c
index 37539c89e3b..17e36952bce 100644
--- a/drivers/usb/storage/sierra_ms.c
+++ b/drivers/usb/storage/sierra_ms.c
@@ -130,14 +130,13 @@ int sierra_ms_init(struct us_data *us)
 	struct swoc_info *swocInfo;
 	struct usb_device *udev;
 	struct Scsi_Host *sh;
-	struct scsi_device *sd;
 
 	retries = 3;
 	result = 0;
 	udev = us->pusb_dev;
 
 	sh = us_to_host(us);
-	sd = scsi_get_host_dev(sh);
+	scsi_get_host_dev(sh);
 
 	US_DEBUGP("SWIMS: sierra_ms_init called\n");
 
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index c70109e5d60..c0543c83923 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -1331,7 +1331,7 @@ int usb_stor_port_reset(struct us_data *us)
 	int result;
 
 	/*for these devices we must use the class specific method */
-	if (us->pusb_dev->quirks & USB_QUIRK_RESET_MORPHS)
+	if (us->pusb_dev->quirks & USB_QUIRK_RESET)
 		return -EPERM;
 
 	result = usb_lock_device_for_reset(us->pusb_dev, us->pusb_intf);
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 638cd64f961..98b98eef752 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -41,6 +41,7 @@ struct sense_iu_old {
 struct uas_dev_info {
 	struct usb_interface *intf;
 	struct usb_device *udev;
+	struct usb_anchor cmd_urbs;
 	struct usb_anchor sense_urbs;
 	struct usb_anchor data_urbs;
 	int qdepth, resetting;
@@ -49,6 +50,7 @@ struct uas_dev_info {
 	unsigned use_streams:1;
 	unsigned uas_sense_old:1;
 	struct scsi_cmnd *cmnd;
+	spinlock_t lock;
 };
 
 enum {
@@ -63,13 +65,13 @@ enum {
 	DATA_IN_URB_INFLIGHT    = (1 << 9),
 	DATA_OUT_URB_INFLIGHT   = (1 << 10),
 	COMMAND_COMPLETED       = (1 << 11),
+	COMMAND_ABORTED         = (1 << 12),
 };
 
 /* Overrides scsi_pointer */
 struct uas_cmd_info {
 	unsigned int state;
 	unsigned int stream;
-	unsigned int aborted;
 	struct urb *cmd_urb;
 	struct urb *data_in_urb;
 	struct urb *data_out_urb;
@@ -90,6 +92,7 @@ static void uas_do_work(struct work_struct *work)
 	struct uas_cmd_info *cmdinfo;
 	struct uas_cmd_info *temp;
 	struct list_head list;
+	unsigned long flags;
 	int err;
 
 	spin_lock_irq(&uas_work_lock);
@@ -100,7 +103,10 @@ static void uas_do_work(struct work_struct *work)
 		struct scsi_pointer *scp = (void *)cmdinfo;
 		struct scsi_cmnd *cmnd = container_of(scp,
 							struct scsi_cmnd, SCp);
-		err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_NOIO);
+		struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
+		spin_lock_irqsave(&devinfo->lock, flags);
+		err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_ATOMIC);
+		spin_unlock_irqrestore(&devinfo->lock, flags);
 		if (err) {
 			list_del(&cmdinfo->list);
 			spin_lock_irq(&uas_work_lock);
@@ -162,7 +168,7 @@ static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *caller)
 	struct uas_cmd_info *ci = (void *)&cmnd->SCp;
 
 	scmd_printk(KERN_INFO, cmnd, "%s %p tag %d, inflight:"
-		    "%s%s%s%s%s%s%s%s%s%s%s\n",
+		    "%s%s%s%s%s%s%s%s%s%s%s%s\n",
 		    caller, cmnd, cmnd->request->tag,
 		    (ci->state & SUBMIT_STATUS_URB)     ? " s-st"  : "",
 		    (ci->state & ALLOC_DATA_IN_URB)     ? " a-in"  : "",
@@ -174,13 +180,16 @@ static void uas_log_cmd_state(struct scsi_cmnd *cmnd, const char *caller)
 		    (ci->state & COMMAND_INFLIGHT)      ? " CMD"   : "",
 		    (ci->state & DATA_IN_URB_INFLIGHT)  ? " IN"    : "",
 		    (ci->state & DATA_OUT_URB_INFLIGHT) ? " OUT"   : "",
-		    (ci->state & COMMAND_COMPLETED)     ? " done"  : "");
+		    (ci->state & COMMAND_COMPLETED)     ? " done"  : "",
+		    (ci->state & COMMAND_ABORTED)       ? " abort" : "");
 }
 
 static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller)
 {
 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
+	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
 
+	WARN_ON(!spin_is_locked(&devinfo->lock));
 	if (cmdinfo->state & (COMMAND_INFLIGHT |
 			      DATA_IN_URB_INFLIGHT |
 			      DATA_OUT_URB_INFLIGHT))
@@ -189,6 +198,10 @@ static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller)
 	cmdinfo->state |= COMMAND_COMPLETED;
 	usb_free_urb(cmdinfo->data_in_urb);
 	usb_free_urb(cmdinfo->data_out_urb);
+	if (cmdinfo->state & COMMAND_ABORTED) {
+		scmd_printk(KERN_INFO, cmnd, "abort completed\n");
+		cmnd->result = DID_ABORT << 16;
+	}
 	cmnd->scsi_done(cmnd);
 	return 0;
 }
@@ -216,6 +229,7 @@ static void uas_stat_cmplt(struct urb *urb)
 	struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
 	struct scsi_cmnd *cmnd;
 	struct uas_cmd_info *cmdinfo;
+	unsigned long flags;
 	u16 tag;
 
 	if (urb->status) {
@@ -229,20 +243,24 @@ static void uas_stat_cmplt(struct urb *urb)
 		return;
 	}
 
+	spin_lock_irqsave(&devinfo->lock, flags);
 	tag = be16_to_cpup(&iu->tag) - 1;
 	if (tag == 0)
 		cmnd = devinfo->cmnd;
 	else
 		cmnd = scsi_host_find_tag(shost, tag - 1);
+
 	if (!cmnd) {
-		if (iu->iu_id != IU_ID_RESPONSE) {
-			usb_free_urb(urb);
-			return;
+		if (iu->iu_id == IU_ID_RESPONSE) {
+			/* store results for uas_eh_task_mgmt() */
+			memcpy(&devinfo->response, iu, sizeof(devinfo->response));
 		}
-	} else {
-		cmdinfo = (void *)&cmnd->SCp;
+		usb_free_urb(urb);
+		spin_unlock_irqrestore(&devinfo->lock, flags);
+		return;
 	}
 
+	cmdinfo = (void *)&cmnd->SCp;
 	switch (iu->iu_id) {
 	case IU_ID_STATUS:
 		if (devinfo->cmnd == cmnd)
@@ -256,10 +274,16 @@ static void uas_stat_cmplt(struct urb *urb)
 			uas_sense(urb, cmnd);
 		if (cmnd->result != 0) {
 			/* cancel data transfers on error */
-			if (cmdinfo->state & DATA_IN_URB_INFLIGHT)
+			if (cmdinfo->state & DATA_IN_URB_INFLIGHT) {
+				spin_unlock_irqrestore(&devinfo->lock, flags);
 				usb_unlink_urb(cmdinfo->data_in_urb);
-			if (cmdinfo->state & DATA_OUT_URB_INFLIGHT)
+				spin_lock_irqsave(&devinfo->lock, flags);
+			}
+			if (cmdinfo->state & DATA_OUT_URB_INFLIGHT) {
+				spin_unlock_irqrestore(&devinfo->lock, flags);
 				usb_unlink_urb(cmdinfo->data_out_urb);
+				spin_lock_irqsave(&devinfo->lock, flags);
+			}
 		}
 		cmdinfo->state &= ~COMMAND_INFLIGHT;
 		uas_try_complete(cmnd, __func__);
@@ -270,23 +294,23 @@ static void uas_stat_cmplt(struct urb *urb)
 	case IU_ID_WRITE_READY:
 		uas_xfer_data(urb, cmnd, SUBMIT_DATA_OUT_URB);
 		break;
-	case IU_ID_RESPONSE:
-		/* store results for uas_eh_task_mgmt() */
-		memcpy(&devinfo->response, iu, sizeof(devinfo->response));
-		break;
 	default:
 		scmd_printk(KERN_ERR, cmnd,
 			"Bogus IU (%d) received on status pipe\n", iu->iu_id);
 	}
 	usb_free_urb(urb);
+	spin_unlock_irqrestore(&devinfo->lock, flags);
 }
 
 static void uas_data_cmplt(struct urb *urb)
 {
 	struct scsi_cmnd *cmnd = urb->context;
 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
+	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
 	struct scsi_data_buffer *sdb = NULL;
+	unsigned long flags;
 
+	spin_lock_irqsave(&devinfo->lock, flags);
 	if (cmdinfo->data_in_urb == urb) {
 		sdb = scsi_in(cmnd);
 		cmdinfo->state &= ~DATA_IN_URB_INFLIGHT;
@@ -301,10 +325,8 @@ static void uas_data_cmplt(struct urb *urb)
 	} else {
 		sdb->resid = sdb->length - urb->actual_length;
 	}
-	if (cmdinfo->aborted) {
-		return;
-	}
 	uas_try_complete(cmnd, __func__);
+	spin_unlock_irqrestore(&devinfo->lock, flags);
 }
 
 static struct urb *uas_alloc_data_urb(struct uas_dev_info *devinfo, gfp_t gfp,
@@ -431,6 +453,7 @@ static int uas_submit_task_urb(struct scsi_cmnd *cmnd, gfp_t gfp,
 	err = usb_submit_urb(urb, gfp);
 	if (err)
 		goto err;
+	usb_anchor_urb(urb, &devinfo->cmd_urbs);
 
 	return 0;
 
@@ -470,6 +493,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
 	int err;
 
+	WARN_ON(!spin_is_locked(&devinfo->lock));
 	if (cmdinfo->state & SUBMIT_STATUS_URB) {
 		err = uas_submit_sense_urb(cmnd->device->host, gfp,
 					   cmdinfo->stream);
@@ -521,18 +545,22 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 
 	if (cmdinfo->state & ALLOC_CMD_URB) {
 		cmdinfo->cmd_urb = uas_alloc_cmd_urb(devinfo, gfp, cmnd,
-							cmdinfo->stream);
+						     cmdinfo->stream);
 		if (!cmdinfo->cmd_urb)
 			return SCSI_MLQUEUE_DEVICE_BUSY;
 		cmdinfo->state &= ~ALLOC_CMD_URB;
 	}
 
 	if (cmdinfo->state & SUBMIT_CMD_URB) {
+		usb_get_urb(cmdinfo->cmd_urb);
 		if (usb_submit_urb(cmdinfo->cmd_urb, gfp)) {
 			scmd_printk(KERN_INFO, cmnd,
 					"cmd urb submission failure\n");
 			return SCSI_MLQUEUE_DEVICE_BUSY;
 		}
+		usb_anchor_urb(cmdinfo->cmd_urb, &devinfo->cmd_urbs);
+		usb_put_urb(cmdinfo->cmd_urb);
+		cmdinfo->cmd_urb = NULL;
 		cmdinfo->state &= ~SUBMIT_CMD_URB;
 		cmdinfo->state |= COMMAND_INFLIGHT;
 	}
@@ -546,12 +574,16 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 	struct scsi_device *sdev = cmnd->device;
 	struct uas_dev_info *devinfo = sdev->hostdata;
 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
+	unsigned long flags;
 	int err;
 
 	BUILD_BUG_ON(sizeof(struct uas_cmd_info) > sizeof(struct scsi_pointer));
 
-	if (devinfo->cmnd)
+	spin_lock_irqsave(&devinfo->lock, flags);
+	if (devinfo->cmnd) {
+		spin_unlock_irqrestore(&devinfo->lock, flags);
 		return SCSI_MLQUEUE_DEVICE_BUSY;
+	}
 
 	if (blk_rq_tagged(cmnd->request)) {
 		cmdinfo->stream = cmnd->request->tag + 2;
@@ -564,7 +596,6 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 
 	cmdinfo->state = SUBMIT_STATUS_URB |
 			ALLOC_CMD_URB | SUBMIT_CMD_URB;
-	cmdinfo->aborted = 0;
 
 	switch (cmnd->sc_data_direction) {
 	case DMA_FROM_DEVICE:
@@ -587,6 +618,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 	if (err) {
 		/* If we did nothing, give up now */
 		if (cmdinfo->state & SUBMIT_STATUS_URB) {
+			spin_unlock_irqrestore(&devinfo->lock, flags);
 			return SCSI_MLQUEUE_DEVICE_BUSY;
 		}
 		spin_lock(&uas_work_lock);
@@ -595,6 +627,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 		schedule_work(&uas_work);
 	}
 
+	spin_unlock_irqrestore(&devinfo->lock, flags);
 	return 0;
 }
 
@@ -605,22 +638,28 @@ static int uas_eh_task_mgmt(struct scsi_cmnd *cmnd,
 {
 	struct Scsi_Host *shost = cmnd->device->host;
 	struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
-	u16 tag = 9999; /* FIXME */
+	u16 tag = devinfo->qdepth - 1;
+	unsigned long flags;
 
+	spin_lock_irqsave(&devinfo->lock, flags);
 	memset(&devinfo->response, 0, sizeof(devinfo->response));
-	if (uas_submit_sense_urb(shost, GFP_NOIO, tag)) {
+	if (uas_submit_sense_urb(shost, GFP_ATOMIC, tag)) {
 		shost_printk(KERN_INFO, shost,
 			     "%s: %s: submit sense urb failed\n",
 			     __func__, fname);
+		spin_unlock_irqrestore(&devinfo->lock, flags);
 		return FAILED;
 	}
-	if (uas_submit_task_urb(cmnd, GFP_NOIO, function, tag)) {
+	if (uas_submit_task_urb(cmnd, GFP_ATOMIC, function, tag)) {
 		shost_printk(KERN_INFO, shost,
 			     "%s: %s: submit task mgmt urb failed\n",
 			     __func__, fname);
+		spin_unlock_irqrestore(&devinfo->lock, flags);
 		return FAILED;
 	}
-	if (0 == usb_wait_anchor_empty_timeout(&devinfo->sense_urbs, 3000)) {
+	spin_unlock_irqrestore(&devinfo->lock, flags);
+
+	if (usb_wait_anchor_empty_timeout(&devinfo->sense_urbs, 3000) == 0) {
 		shost_printk(KERN_INFO, shost,
 			     "%s: %s timed out\n", __func__, fname);
 		return FAILED;
@@ -643,15 +682,15 @@ static int uas_eh_task_mgmt(struct scsi_cmnd *cmnd,
 static int uas_eh_abort_handler(struct scsi_cmnd *cmnd)
 {
 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
+	struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
+	unsigned long flags;
 	int ret;
 
 	uas_log_cmd_state(cmnd, __func__);
-	cmdinfo->aborted = 1;
+	spin_lock_irqsave(&devinfo->lock, flags);
+	cmdinfo->state |= COMMAND_ABORTED;
+	spin_unlock_irqrestore(&devinfo->lock, flags);
 	ret = uas_eh_task_mgmt(cmnd, "ABORT TASK", TMF_ABORT_TASK);
-	if (cmdinfo->state & DATA_IN_URB_INFLIGHT)
-		usb_kill_urb(cmdinfo->data_in_urb);
-	if (cmdinfo->state & DATA_OUT_URB_INFLIGHT)
-		usb_kill_urb(cmdinfo->data_out_urb);
 	return ret;
 }
 
@@ -670,6 +709,7 @@ static int uas_eh_bus_reset_handler(struct scsi_cmnd *cmnd)
 	int err;
 
 	devinfo->resetting = 1;
+	usb_kill_anchored_urbs(&devinfo->cmd_urbs);
 	usb_kill_anchored_urbs(&devinfo->sense_urbs);
 	usb_kill_anchored_urbs(&devinfo->data_urbs);
 	err = usb_reset_device(udev);
@@ -694,7 +734,7 @@ static int uas_slave_configure(struct scsi_device *sdev)
 {
 	struct uas_dev_info *devinfo = sdev->hostdata;
 	scsi_set_tag_type(sdev, MSG_ORDERED_TAG);
-	scsi_activate_tcq(sdev, devinfo->qdepth - 2);
+	scsi_activate_tcq(sdev, devinfo->qdepth - 3);
 	return 0;
 }
 
@@ -868,11 +908,13 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	devinfo->intf = intf;
 	devinfo->udev = udev;
 	devinfo->resetting = 0;
+	init_usb_anchor(&devinfo->cmd_urbs);
 	init_usb_anchor(&devinfo->sense_urbs);
 	init_usb_anchor(&devinfo->data_urbs);
+	spin_lock_init(&devinfo->lock);
 	uas_configure_endpoints(devinfo);
 
-	result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 2);
+	result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 3);
 	if (result)
 		goto free;
 
@@ -913,6 +955,7 @@ static void uas_disconnect(struct usb_interface *intf)
 	struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
 
 	scsi_remove_host(shost);
+	usb_kill_anchored_urbs(&devinfo->cmd_urbs);
 	usb_kill_anchored_urbs(&devinfo->sense_urbs);
 	usb_kill_anchored_urbs(&devinfo->data_urbs);
 	uas_free_streams(devinfo);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 62a31bea063..779cd954abc 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2038,25 +2038,25 @@ UNUSUAL_DEV( 0xed10, 0x7636, 0x0001, 0x0001,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE ),
 
 /* Control/Bulk transport for all SubClass values */
-USUAL_DEV(USB_SC_RBC, USB_PR_CB, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_8020, USB_PR_CB, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_QIC, USB_PR_CB, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_UFI, USB_PR_CB, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_8070, USB_PR_CB, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_SCSI, USB_PR_CB, USB_US_TYPE_STOR),
+USUAL_DEV(USB_SC_RBC, USB_PR_CB),
+USUAL_DEV(USB_SC_8020, USB_PR_CB),
+USUAL_DEV(USB_SC_QIC, USB_PR_CB),
+USUAL_DEV(USB_SC_UFI, USB_PR_CB),
+USUAL_DEV(USB_SC_8070, USB_PR_CB),
+USUAL_DEV(USB_SC_SCSI, USB_PR_CB),
 
 /* Control/Bulk/Interrupt transport for all SubClass values */
-USUAL_DEV(USB_SC_RBC, USB_PR_CBI, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_8020, USB_PR_CBI, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_QIC, USB_PR_CBI, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_UFI, USB_PR_CBI, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_8070, USB_PR_CBI, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_SCSI, USB_PR_CBI, USB_US_TYPE_STOR),
+USUAL_DEV(USB_SC_RBC, USB_PR_CBI),
+USUAL_DEV(USB_SC_8020, USB_PR_CBI),
+USUAL_DEV(USB_SC_QIC, USB_PR_CBI),
+USUAL_DEV(USB_SC_UFI, USB_PR_CBI),
+USUAL_DEV(USB_SC_8070, USB_PR_CBI),
+USUAL_DEV(USB_SC_SCSI, USB_PR_CBI),
 
 /* Bulk-only transport for all SubClass values */
-USUAL_DEV(USB_SC_RBC, USB_PR_BULK, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_8020, USB_PR_BULK, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_QIC, USB_PR_BULK, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_UFI, USB_PR_BULK, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_8070, USB_PR_BULK, USB_US_TYPE_STOR),
-USUAL_DEV(USB_SC_SCSI, USB_PR_BULK, 0),
+USUAL_DEV(USB_SC_RBC, USB_PR_BULK),
+USUAL_DEV(USB_SC_8020, USB_PR_BULK),
+USUAL_DEV(USB_SC_QIC, USB_PR_BULK),
+USUAL_DEV(USB_SC_UFI, USB_PR_BULK),
+USUAL_DEV(USB_SC_8070, USB_PR_BULK),
+USUAL_DEV(USB_SC_SCSI, USB_PR_BULK),
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index d012fe4329e..12aa72630ae 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -114,7 +114,7 @@ MODULE_PARM_DESC(quirks, "supplemental list of device IDs and their quirks");
 
 #define COMPLIANT_DEV	UNUSUAL_DEV
 
-#define USUAL_DEV(use_protocol, use_transport, use_type) \
+#define USUAL_DEV(use_protocol, use_transport) \
 { \
 	.useProtocol = use_protocol,	\
 	.useTransport = use_transport,	\
@@ -126,7 +126,7 @@ static struct us_unusual_dev us_unusual_dev_list[] = {
 };
 
 static struct us_unusual_dev for_dynamic_ids =
-		USUAL_DEV(USB_SC_SCSI, USB_PR_BULK, 0);
+		USUAL_DEV(USB_SC_SCSI, USB_PR_BULK);
 
 #undef UNUSUAL_DEV
 #undef COMPLIANT_DEV
@@ -564,7 +564,7 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id,
 	us->protocol = (unusual_dev->useTransport == USB_PR_DEVICE) ?
 			idesc->bInterfaceProtocol :
 			unusual_dev->useTransport;
-	us->fflags = USB_US_ORIG_FLAGS(id->driver_info);
+	us->fflags = id->driver_info;
 	adjust_quirks(us);
 
 	if (us->fflags & US_FL_IGNORE_DEVICE) {
@@ -1041,13 +1041,10 @@ static int storage_probe(struct usb_interface *intf,
 	int size;
 
 	/*
-	 * If libusual is configured, let it decide whether a standard
-	 * device should be handled by usb-storage or by ub.
 	 * If the device isn't standard (is handled by a subdriver
 	 * module) then don't accept it.
 	 */
-	if (usb_usual_check_type(id, USB_US_TYPE_STOR) ||
-			usb_usual_ignore_device(intf))
+	if (usb_usual_ignore_device(intf))
 		return -ENXIO;
 
 	/*
@@ -1105,10 +1102,8 @@ static int __init usb_stor_init(void)
 
 	/* register the driver, return usb_register return code if error */
 	retval = usb_register(&usb_storage_driver);
-	if (retval == 0) {
+	if (retval == 0)
 		pr_info("USB Mass Storage support registered.\n");
-		usb_usual_set_present(USB_US_TYPE_STOR);
-	}
 	return retval;
 }
 
@@ -1122,8 +1117,6 @@ static void __exit usb_stor_exit(void)
 	 */
 	US_DEBUGP("-- calling usb_deregister()\n");
 	usb_deregister(&usb_storage_driver) ;
-
-	usb_usual_clear_present(USB_US_TYPE_STOR);
 }
 
 module_init(usb_stor_init);
diff --git a/drivers/usb/storage/usual-tables.c b/drivers/usb/storage/usual-tables.c
index b96927914f8..b78a526910f 100644
--- a/drivers/usb/storage/usual-tables.c
+++ b/drivers/usb/storage/usual-tables.c
@@ -34,31 +34,23 @@
 		    vendorName, productName, useProtocol, useTransport, \
 		    initFunction, flags) \
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
-  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
-
-#define COMPLIANT_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
-		    vendorName, productName, useProtocol, useTransport, \
-		    initFunction, flags) \
-{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags) }
 
-#define USUAL_DEV(useProto, useTrans, useType) \
-{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans), \
-  .driver_info = ((useType)<<24) }
+#define COMPLIANT_DEV	UNUSUAL_DEV
+
+#define USUAL_DEV(useProto, useTrans) \
+{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, useProto, useTrans) }
 
 struct usb_device_id usb_storage_usb_ids[] = {
 #	include "unusual_devs.h"
 	{ }		/* Terminating entry */
 };
-EXPORT_SYMBOL_GPL(usb_storage_usb_ids);
-
 MODULE_DEVICE_TABLE(usb, usb_storage_usb_ids);
 
 #undef UNUSUAL_DEV
 #undef COMPLIANT_DEV
 #undef USUAL_DEV
 
-
 /*
  * The table of devices to ignore
  */
@@ -95,7 +87,6 @@ static struct ignore_entry ignore_ids[] = {
 
 #undef UNUSUAL_DEV
 
-
 /* Return an error if a device is in the ignore_ids list */
 int usb_usual_ignore_device(struct usb_interface *intf)
 {
@@ -115,4 +106,3 @@ int usb_usual_ignore_device(struct usb_interface *intf)
 	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(usb_usual_ignore_device);
diff --git a/drivers/usb/wusbcore/Kconfig b/drivers/usb/wusbcore/Kconfig
index f29fdd7f6d7..8bf19760d44 100644
--- a/drivers/usb/wusbcore/Kconfig
+++ b/drivers/usb/wusbcore/Kconfig
@@ -2,8 +2,7 @@
 # Wireless USB Core configuration
 #
 config USB_WUSB
-	tristate "Enable Wireless USB extensions (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Enable Wireless USB extensions"
 	depends on USB
 	depends on PCI
 	depends on UWB
diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c
index fa810a83e83..dd88441c8f7 100644
--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -202,7 +202,7 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc,
 {
 	int result, bytes, secd_size;
 	struct device *dev = &usb_dev->dev;
-	struct usb_security_descriptor *secd;
+	struct usb_security_descriptor *secd, *new_secd;
 	const struct usb_encryption_descriptor *etd, *ccm1_etd = NULL;
 	const void *itr, *top;
 	char buf[64];
@@ -221,11 +221,12 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc,
 		goto out;
 	}
 	secd_size = le16_to_cpu(secd->wTotalLength);
-	secd = krealloc(secd, secd_size, GFP_KERNEL);
-	if (secd == NULL) {
+	new_secd = krealloc(secd, secd_size, GFP_KERNEL);
+	if (new_secd == NULL) {
 		dev_err(dev, "Can't allocate space for security descriptors\n");
 		goto out;
 	}
+	secd = new_secd;
 	result = usb_get_descriptor(usb_dev, USB_DT_SECURITY,
 				    0, secd, secd_size);
 	if (result < secd_size) {
diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c
index 9e4a9246168..a09b65ebd9b 100644
--- a/drivers/usb/wusbcore/wa-hc.c
+++ b/drivers/usb/wusbcore/wa-hc.c
@@ -46,8 +46,10 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
 	wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
 	wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
 	wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
-	if (wa->xfer_result == NULL)
+	if (wa->xfer_result == NULL) {
+		result = -ENOMEM;
 		goto error_xfer_result_alloc;
+	}
 	result = wa_nep_create(wa, iface);
 	if (result < 0) {
 		dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c
index 211a4920b88..d8dedc7d391 100644
--- a/drivers/vfio/pci/vfio_pci_intrs.c
+++ b/drivers/vfio/pci/vfio_pci_intrs.c
@@ -76,9 +76,24 @@ static int virqfd_wakeup(wait_queue_t *wait, unsigned mode, int sync, void *key)
 			schedule_work(&virqfd->inject);
 	}
 
-	if (flags & POLLHUP)
-		/* The eventfd is closing, detach from VFIO */
-		virqfd_deactivate(virqfd);
+	if (flags & POLLHUP) {
+		unsigned long flags;
+		spin_lock_irqsave(&virqfd->vdev->irqlock, flags);
+
+		/*
+		 * The eventfd is closing, if the virqfd has not yet been
+		 * queued for release, as determined by testing whether the
+		 * vdev pointer to it is still valid, queue it now.  As
+		 * with kvm irqfds, we know we won't race against the virqfd
+		 * going away because we hold wqh->lock to get here.
+		 */
+		if (*(virqfd->pvirqfd) == virqfd) {
+			*(virqfd->pvirqfd) = NULL;
+			virqfd_deactivate(virqfd);
+		}
+
+		spin_unlock_irqrestore(&virqfd->vdev->irqlock, flags);
+	}
 
 	return 0;
 }
@@ -93,7 +108,6 @@ static void virqfd_ptable_queue_proc(struct file *file,
 static void virqfd_shutdown(struct work_struct *work)
 {
 	struct virqfd *virqfd = container_of(work, struct virqfd, shutdown);
-	struct virqfd **pvirqfd = virqfd->pvirqfd;
 	u64 cnt;
 
 	eventfd_ctx_remove_wait_queue(virqfd->eventfd, &virqfd->wait, &cnt);
@@ -101,7 +115,6 @@ static void virqfd_shutdown(struct work_struct *work)
 	eventfd_ctx_put(virqfd->eventfd);
 
 	kfree(virqfd);
-	*pvirqfd = NULL;
 }
 
 static void virqfd_inject(struct work_struct *work)
@@ -122,15 +135,11 @@ static int virqfd_enable(struct vfio_pci_device *vdev,
 	int ret = 0;
 	unsigned int events;
 
-	if (*pvirqfd)
-		return -EBUSY;
-
 	virqfd = kzalloc(sizeof(*virqfd), GFP_KERNEL);
 	if (!virqfd)
 		return -ENOMEM;
 
 	virqfd->pvirqfd = pvirqfd;
-	*pvirqfd = virqfd;
 	virqfd->vdev = vdev;
 	virqfd->handler = handler;
 	virqfd->thread = thread;
@@ -154,6 +163,23 @@ static int virqfd_enable(struct vfio_pci_device *vdev,
 	virqfd->eventfd = ctx;
 
 	/*
+	 * virqfds can be released by closing the eventfd or directly
+	 * through ioctl.  These are both done through a workqueue, so
+	 * we update the pointer to the virqfd under lock to avoid
+	 * pushing multiple jobs to release the same virqfd.
+	 */
+	spin_lock_irq(&vdev->irqlock);
+
+	if (*pvirqfd) {
+		spin_unlock_irq(&vdev->irqlock);
+		ret = -EBUSY;
+		goto fail;
+	}
+	*pvirqfd = virqfd;
+
+	spin_unlock_irq(&vdev->irqlock);
+
+	/*
 	 * Install our own custom wake-up handling so we are notified via
 	 * a callback whenever someone signals the underlying eventfd.
 	 */
@@ -187,19 +213,29 @@ fail:
 		fput(file);
 
 	kfree(virqfd);
-	*pvirqfd = NULL;
 
 	return ret;
 }
 
-static void virqfd_disable(struct virqfd *virqfd)
+static void virqfd_disable(struct vfio_pci_device *vdev,
+			   struct virqfd **pvirqfd)
 {
-	if (!virqfd)
-		return;
+	unsigned long flags;
+
+	spin_lock_irqsave(&vdev->irqlock, flags);
+
+	if (*pvirqfd) {
+		virqfd_deactivate(*pvirqfd);
+		*pvirqfd = NULL;
+	}
 
-	virqfd_deactivate(virqfd);
+	spin_unlock_irqrestore(&vdev->irqlock, flags);
 
-	/* Block until we know all outstanding shutdown jobs have completed. */
+	/*
+	 * Block until we know all outstanding shutdown jobs have completed.
+	 * Even if we don't queue the job, flush the wq to be sure it's
+	 * been released.
+	 */
 	flush_workqueue(vfio_irqfd_cleanup_wq);
 }
 
@@ -392,8 +428,8 @@ static int vfio_intx_set_signal(struct vfio_pci_device *vdev, int fd)
 static void vfio_intx_disable(struct vfio_pci_device *vdev)
 {
 	vfio_intx_set_signal(vdev, -1);
-	virqfd_disable(vdev->ctx[0].unmask);
-	virqfd_disable(vdev->ctx[0].mask);
+	virqfd_disable(vdev, &vdev->ctx[0].unmask);
+	virqfd_disable(vdev, &vdev->ctx[0].mask);
 	vdev->irq_type = VFIO_PCI_NUM_IRQS;
 	vdev->num_ctx = 0;
 	kfree(vdev->ctx);
@@ -539,8 +575,8 @@ static void vfio_msi_disable(struct vfio_pci_device *vdev, bool msix)
 	vfio_msi_set_block(vdev, 0, vdev->num_ctx, NULL, msix);
 
 	for (i = 0; i < vdev->num_ctx; i++) {
-		virqfd_disable(vdev->ctx[i].unmask);
-		virqfd_disable(vdev->ctx[i].mask);
+		virqfd_disable(vdev, &vdev->ctx[i].unmask);
+		virqfd_disable(vdev, &vdev->ctx[i].mask);
 	}
 
 	if (msix) {
@@ -577,7 +613,7 @@ static int vfio_pci_set_intx_unmask(struct vfio_pci_device *vdev,
 					     vfio_send_intx_eventfd, NULL,
 					     &vdev->ctx[0].unmask, fd);
 
-		virqfd_disable(vdev->ctx[0].unmask);
+		virqfd_disable(vdev, &vdev->ctx[0].unmask);
 	}
 
 	return 0;
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 9591e2b509d..56097c6d072 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -264,6 +264,7 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group)
 	return group;
 }
 
+/* called with vfio.group_lock held */
 static void vfio_group_release(struct kref *kref)
 {
 	struct vfio_group *group = container_of(kref, struct vfio_group, kref);
@@ -287,13 +288,7 @@ static void vfio_group_release(struct kref *kref)
 
 static void vfio_group_put(struct vfio_group *group)
 {
-	mutex_lock(&vfio.group_lock);
-	/*
-	 * Release needs to unlock to unregister the notifier, so only
-	 * unlock if not released.
-	 */
-	if (!kref_put(&group->kref, vfio_group_release))
-		mutex_unlock(&vfio.group_lock);
+	kref_put_mutex(&group->kref, vfio_group_release, &vfio.group_lock);
 }
 
 /* Assume group_lock or group reference is held */
@@ -401,7 +396,6 @@ static void vfio_device_release(struct kref *kref)
 						  struct vfio_device, kref);
 	struct vfio_group *group = device->group;
 
-	mutex_lock(&group->device_lock);
 	list_del(&device->group_next);
 	mutex_unlock(&group->device_lock);
 
@@ -416,8 +410,9 @@ static void vfio_device_release(struct kref *kref)
 /* Device reference always implies a group reference */
 static void vfio_device_put(struct vfio_device *device)
 {
-	kref_put(&device->kref, vfio_device_release);
-	vfio_group_put(device->group);
+	struct vfio_group *group = device->group;
+	kref_put_mutex(&device->kref, vfio_device_release, &group->device_lock);
+	vfio_group_put(group);
 }
 
 static void vfio_device_get(struct vfio_device *device)
@@ -1019,7 +1014,7 @@ static void vfio_group_try_dissolve_container(struct vfio_group *group)
 
 static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 {
-	struct file *filep;
+	struct fd f;
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
@@ -1027,17 +1022,17 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 	if (atomic_read(&group->container_users))
 		return -EINVAL;
 
-	filep = fget(container_fd);
-	if (!filep)
+	f = fdget(container_fd);
+	if (!f.file)
 		return -EBADF;
 
 	/* Sanity check, is this really our fd? */
-	if (filep->f_op != &vfio_fops) {
-		fput(filep);
+	if (f.file->f_op != &vfio_fops) {
+		fdput(f);
 		return -EINVAL;
 	}
 
-	container = filep->private_data;
+	container = f.file->private_data;
 	WARN_ON(!container); /* fget ensures we don't race vfio_release */
 
 	mutex_lock(&container->group_lock);
@@ -1059,8 +1054,7 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 
 unlock_out:
 	mutex_unlock(&container->group_lock);
-	fput(filep);
-
+	fdput(f);
 	return ret;
 }
 
@@ -1116,10 +1110,10 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
 		 */
 		filep->f_mode |= (FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE);
 
-		fd_install(ret, filep);
-
 		vfio_device_get(device);
 		atomic_inc(&group->container_users);
+
+		fd_install(ret, filep);
 		break;
 	}
 	mutex_unlock(&group->device_lock);
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index e4e2fd1b510..202bba6c997 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -9,3 +9,6 @@ config VHOST_NET
 	  To compile this driver as a module, choose M here: the module will
 	  be called vhost_net.
 
+if STAGING
+source "drivers/vhost/Kconfig.tcm"
+endif
diff --git a/drivers/vhost/Kconfig.tcm b/drivers/vhost/Kconfig.tcm
new file mode 100644
index 00000000000..a9c6f76e320
--- /dev/null
+++ b/drivers/vhost/Kconfig.tcm
@@ -0,0 +1,6 @@
+config TCM_VHOST
+	tristate "TCM_VHOST fabric module (EXPERIMENTAL)"
+	depends on TARGET_CORE && EVENTFD && EXPERIMENTAL && m
+	default n
+	---help---
+	Say M here to enable the TCM_VHOST fabric module for use with virtio-scsi guests
diff --git a/drivers/vhost/Makefile b/drivers/vhost/Makefile
index 72dd02050bb..a27b053bc9a 100644
--- a/drivers/vhost/Makefile
+++ b/drivers/vhost/Makefile
@@ -1,2 +1,4 @@
 obj-$(CONFIG_VHOST_NET) += vhost_net.o
 vhost_net-y := vhost.o net.o
+
+obj-$(CONFIG_TCM_VHOST) += tcm_vhost.o
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
new file mode 100644
index 00000000000..ed8e2e6c8df
--- /dev/null
+++ b/drivers/vhost/tcm_vhost.c
@@ -0,0 +1,1649 @@
+/*******************************************************************************
+ * Vhost kernel TCM fabric driver for virtio SCSI initiators
+ *
+ * (C) Copyright 2010-2012 RisingTide Systems LLC.
+ * (C) Copyright 2010-2012 IBM Corp.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
+ *
+ * Authors: Nicholas A. Bellinger <nab@risingtidesystems.com>
+ *          Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ ****************************************************************************/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <generated/utsrelease.h>
+#include <linux/utsname.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/kthread.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/configfs.h>
+#include <linux/ctype.h>
+#include <linux/compat.h>
+#include <linux/eventfd.h>
+#include <linux/vhost.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <asm/unaligned.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_tcq.h>
+#include <target/target_core_base.h>
+#include <target/target_core_fabric.h>
+#include <target/target_core_fabric_configfs.h>
+#include <target/target_core_configfs.h>
+#include <target/configfs_macros.h>
+#include <linux/vhost.h>
+#include <linux/virtio_net.h> /* TODO vhost.h currently depends on this */
+#include <linux/virtio_scsi.h>
+
+#include "vhost.c"
+#include "vhost.h"
+#include "tcm_vhost.h"
+
+enum {
+	VHOST_SCSI_VQ_CTL = 0,
+	VHOST_SCSI_VQ_EVT = 1,
+	VHOST_SCSI_VQ_IO = 2,
+};
+
+struct vhost_scsi {
+	struct tcm_vhost_tpg *vs_tpg;	/* Protected by vhost_scsi->dev.mutex */
+	struct vhost_dev dev;
+	struct vhost_virtqueue vqs[3];
+
+	struct vhost_work vs_completion_work; /* cmd completion work item */
+	struct list_head vs_completion_list;  /* cmd completion queue */
+	spinlock_t vs_completion_lock;        /* protects s_completion_list */
+};
+
+/* Local pointer to allocated TCM configfs fabric module */
+static struct target_fabric_configfs *tcm_vhost_fabric_configfs;
+
+static struct workqueue_struct *tcm_vhost_workqueue;
+
+/* Global spinlock to protect tcm_vhost TPG list for vhost IOCTL access */
+static DEFINE_MUTEX(tcm_vhost_mutex);
+static LIST_HEAD(tcm_vhost_list);
+
+static int tcm_vhost_check_true(struct se_portal_group *se_tpg)
+{
+	return 1;
+}
+
+static int tcm_vhost_check_false(struct se_portal_group *se_tpg)
+{
+	return 0;
+}
+
+static char *tcm_vhost_get_fabric_name(void)
+{
+	return "vhost";
+}
+
+static u8 tcm_vhost_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_tport *tport = tpg->tport;
+
+	switch (tport->tport_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_get_fabric_proto_ident(se_tpg);
+	case SCSI_PROTOCOL_FCP:
+		return fc_get_fabric_proto_ident(se_tpg);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_get_fabric_proto_ident(se_tpg);
+	default:
+		pr_err("Unknown tport_proto_id: 0x%02x, using"
+			" SAS emulation\n", tport->tport_proto_id);
+		break;
+	}
+
+	return sas_get_fabric_proto_ident(se_tpg);
+}
+
+static char *tcm_vhost_get_fabric_wwn(struct se_portal_group *se_tpg)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_tport *tport = tpg->tport;
+
+	return &tport->tport_name[0];
+}
+
+static u16 tcm_vhost_get_tag(struct se_portal_group *se_tpg)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	return tpg->tport_tpgt;
+}
+
+static u32 tcm_vhost_get_default_depth(struct se_portal_group *se_tpg)
+{
+	return 1;
+}
+
+static u32 tcm_vhost_get_pr_transport_id(struct se_portal_group *se_tpg,
+	struct se_node_acl *se_nacl,
+	struct t10_pr_registration *pr_reg,
+	int *format_code,
+	unsigned char *buf)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_tport *tport = tpg->tport;
+
+	switch (tport->tport_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+					format_code, buf);
+	case SCSI_PROTOCOL_FCP:
+		return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+					format_code, buf);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+					format_code, buf);
+	default:
+		pr_err("Unknown tport_proto_id: 0x%02x, using"
+			" SAS emulation\n", tport->tport_proto_id);
+		break;
+	}
+
+	return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
+			format_code, buf);
+}
+
+static u32 tcm_vhost_get_pr_transport_id_len(struct se_portal_group *se_tpg,
+	struct se_node_acl *se_nacl,
+	struct t10_pr_registration *pr_reg,
+	int *format_code)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_tport *tport = tpg->tport;
+
+	switch (tport->tport_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+					format_code);
+	case SCSI_PROTOCOL_FCP:
+		return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+					format_code);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+					format_code);
+	default:
+		pr_err("Unknown tport_proto_id: 0x%02x, using"
+			" SAS emulation\n", tport->tport_proto_id);
+		break;
+	}
+
+	return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
+			format_code);
+}
+
+static char *tcm_vhost_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
+	const char *buf,
+	u32 *out_tid_len,
+	char **port_nexus_ptr)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_tport *tport = tpg->tport;
+
+	switch (tport->tport_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+					port_nexus_ptr);
+	case SCSI_PROTOCOL_FCP:
+		return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+					port_nexus_ptr);
+	case SCSI_PROTOCOL_ISCSI:
+		return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+					port_nexus_ptr);
+	default:
+		pr_err("Unknown tport_proto_id: 0x%02x, using"
+			" SAS emulation\n", tport->tport_proto_id);
+		break;
+	}
+
+	return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
+			port_nexus_ptr);
+}
+
+static struct se_node_acl *tcm_vhost_alloc_fabric_acl(
+	struct se_portal_group *se_tpg)
+{
+	struct tcm_vhost_nacl *nacl;
+
+	nacl = kzalloc(sizeof(struct tcm_vhost_nacl), GFP_KERNEL);
+	if (!nacl) {
+		pr_err("Unable to alocate struct tcm_vhost_nacl\n");
+		return NULL;
+	}
+
+	return &nacl->se_node_acl;
+}
+
+static void tcm_vhost_release_fabric_acl(struct se_portal_group *se_tpg,
+	struct se_node_acl *se_nacl)
+{
+	struct tcm_vhost_nacl *nacl = container_of(se_nacl,
+			struct tcm_vhost_nacl, se_node_acl);
+	kfree(nacl);
+}
+
+static u32 tcm_vhost_tpg_get_inst_index(struct se_portal_group *se_tpg)
+{
+	return 1;
+}
+
+static void tcm_vhost_release_cmd(struct se_cmd *se_cmd)
+{
+	return;
+}
+
+static int tcm_vhost_shutdown_session(struct se_session *se_sess)
+{
+	return 0;
+}
+
+static void tcm_vhost_close_session(struct se_session *se_sess)
+{
+	return;
+}
+
+static u32 tcm_vhost_sess_get_index(struct se_session *se_sess)
+{
+	return 0;
+}
+
+static int tcm_vhost_write_pending(struct se_cmd *se_cmd)
+{
+	/* Go ahead and process the write immediately */
+	target_execute_cmd(se_cmd);
+	return 0;
+}
+
+static int tcm_vhost_write_pending_status(struct se_cmd *se_cmd)
+{
+	return 0;
+}
+
+static void tcm_vhost_set_default_node_attrs(struct se_node_acl *nacl)
+{
+	return;
+}
+
+static u32 tcm_vhost_get_task_tag(struct se_cmd *se_cmd)
+{
+	return 0;
+}
+
+static int tcm_vhost_get_cmd_state(struct se_cmd *se_cmd)
+{
+	return 0;
+}
+
+static void vhost_scsi_complete_cmd(struct tcm_vhost_cmd *tv_cmd)
+{
+	struct vhost_scsi *vs = tv_cmd->tvc_vhost;
+
+	spin_lock_bh(&vs->vs_completion_lock);
+	list_add_tail(&tv_cmd->tvc_completion_list, &vs->vs_completion_list);
+	spin_unlock_bh(&vs->vs_completion_lock);
+
+	vhost_work_queue(&vs->dev, &vs->vs_completion_work);
+}
+
+static int tcm_vhost_queue_data_in(struct se_cmd *se_cmd)
+{
+	struct tcm_vhost_cmd *tv_cmd = container_of(se_cmd,
+				struct tcm_vhost_cmd, tvc_se_cmd);
+	vhost_scsi_complete_cmd(tv_cmd);
+	return 0;
+}
+
+static int tcm_vhost_queue_status(struct se_cmd *se_cmd)
+{
+	struct tcm_vhost_cmd *tv_cmd = container_of(se_cmd,
+				struct tcm_vhost_cmd, tvc_se_cmd);
+	vhost_scsi_complete_cmd(tv_cmd);
+	return 0;
+}
+
+static int tcm_vhost_queue_tm_rsp(struct se_cmd *se_cmd)
+{
+	return 0;
+}
+
+static u16 tcm_vhost_set_fabric_sense_len(struct se_cmd *se_cmd,
+	u32 sense_length)
+{
+	return 0;
+}
+
+static u16 tcm_vhost_get_fabric_sense_len(void)
+{
+	return 0;
+}
+
+static void vhost_scsi_free_cmd(struct tcm_vhost_cmd *tv_cmd)
+{
+	struct se_cmd *se_cmd = &tv_cmd->tvc_se_cmd;
+
+	/* TODO locking against target/backend threads? */
+	transport_generic_free_cmd(se_cmd, 1);
+
+	if (tv_cmd->tvc_sgl_count) {
+		u32 i;
+		for (i = 0; i < tv_cmd->tvc_sgl_count; i++)
+			put_page(sg_page(&tv_cmd->tvc_sgl[i]));
+
+		kfree(tv_cmd->tvc_sgl);
+	}
+
+	kfree(tv_cmd);
+}
+
+/* Dequeue a command from the completion list */
+static struct tcm_vhost_cmd *vhost_scsi_get_cmd_from_completion(
+	struct vhost_scsi *vs)
+{
+	struct tcm_vhost_cmd *tv_cmd = NULL;
+
+	spin_lock_bh(&vs->vs_completion_lock);
+	if (list_empty(&vs->vs_completion_list)) {
+		spin_unlock_bh(&vs->vs_completion_lock);
+		return NULL;
+	}
+
+	list_for_each_entry(tv_cmd, &vs->vs_completion_list,
+			    tvc_completion_list) {
+		list_del(&tv_cmd->tvc_completion_list);
+		break;
+	}
+	spin_unlock_bh(&vs->vs_completion_lock);
+	return tv_cmd;
+}
+
+/* Fill in status and signal that we are done processing this command
+ *
+ * This is scheduled in the vhost work queue so we are called with the owner
+ * process mm and can access the vring.
+ */
+static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
+{
+	struct vhost_scsi *vs = container_of(work, struct vhost_scsi,
+					vs_completion_work);
+	struct tcm_vhost_cmd *tv_cmd;
+
+	while ((tv_cmd = vhost_scsi_get_cmd_from_completion(vs))) {
+		struct virtio_scsi_cmd_resp v_rsp;
+		struct se_cmd *se_cmd = &tv_cmd->tvc_se_cmd;
+		int ret;
+
+		pr_debug("%s tv_cmd %p resid %u status %#02x\n", __func__,
+			tv_cmd, se_cmd->residual_count, se_cmd->scsi_status);
+
+		memset(&v_rsp, 0, sizeof(v_rsp));
+		v_rsp.resid = se_cmd->residual_count;
+		/* TODO is status_qualifier field needed? */
+		v_rsp.status = se_cmd->scsi_status;
+		v_rsp.sense_len = se_cmd->scsi_sense_length;
+		memcpy(v_rsp.sense, tv_cmd->tvc_sense_buf,
+		       v_rsp.sense_len);
+		ret = copy_to_user(tv_cmd->tvc_resp, &v_rsp, sizeof(v_rsp));
+		if (likely(ret == 0))
+			vhost_add_used(&vs->vqs[2], tv_cmd->tvc_vq_desc, 0);
+		else
+			pr_err("Faulted on virtio_scsi_cmd_resp\n");
+
+		vhost_scsi_free_cmd(tv_cmd);
+	}
+
+	vhost_signal(&vs->dev, &vs->vqs[2]);
+}
+
+static struct tcm_vhost_cmd *vhost_scsi_allocate_cmd(
+	struct tcm_vhost_tpg *tv_tpg,
+	struct virtio_scsi_cmd_req *v_req,
+	u32 exp_data_len,
+	int data_direction)
+{
+	struct tcm_vhost_cmd *tv_cmd;
+	struct tcm_vhost_nexus *tv_nexus;
+	struct se_portal_group *se_tpg = &tv_tpg->se_tpg;
+	struct se_session *se_sess;
+	struct se_cmd *se_cmd;
+	int sam_task_attr;
+
+	tv_nexus = tv_tpg->tpg_nexus;
+	if (!tv_nexus) {
+		pr_err("Unable to locate active struct tcm_vhost_nexus\n");
+		return ERR_PTR(-EIO);
+	}
+	se_sess = tv_nexus->tvn_se_sess;
+
+	tv_cmd = kzalloc(sizeof(struct tcm_vhost_cmd), GFP_ATOMIC);
+	if (!tv_cmd) {
+		pr_err("Unable to allocate struct tcm_vhost_cmd\n");
+		return ERR_PTR(-ENOMEM);
+	}
+	INIT_LIST_HEAD(&tv_cmd->tvc_completion_list);
+	tv_cmd->tvc_tag = v_req->tag;
+
+	se_cmd = &tv_cmd->tvc_se_cmd;
+	/*
+	 * Locate the SAM Task Attr from virtio_scsi_cmd_req
+	 */
+	sam_task_attr = v_req->task_attr;
+	/*
+	 * Initialize struct se_cmd descriptor from TCM infrastructure
+	 */
+	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, exp_data_len,
+				data_direction, sam_task_attr,
+				&tv_cmd->tvc_sense_buf[0]);
+
+#if 0	/* FIXME: vhost_scsi_allocate_cmd() BIDI operation */
+	if (bidi)
+		se_cmd->se_cmd_flags |= SCF_BIDI;
+#endif
+	return tv_cmd;
+}
+
+/*
+ * Map a user memory range into a scatterlist
+ *
+ * Returns the number of scatterlist entries used or -errno on error.
+ */
+static int vhost_scsi_map_to_sgl(struct scatterlist *sgl,
+	unsigned int sgl_count, void __user *ptr, size_t len, int write)
+{
+	struct scatterlist *sg = sgl;
+	unsigned int npages = 0;
+	int ret;
+
+	while (len > 0) {
+		struct page *page;
+		unsigned int offset = (uintptr_t)ptr & ~PAGE_MASK;
+		unsigned int nbytes = min_t(unsigned int,
+				PAGE_SIZE - offset, len);
+
+		if (npages == sgl_count) {
+			ret = -ENOBUFS;
+			goto err;
+		}
+
+		ret = get_user_pages_fast((unsigned long)ptr, 1, write, &page);
+		BUG_ON(ret == 0); /* we should either get our page or fail */
+		if (ret < 0)
+			goto err;
+
+		sg_set_page(sg, page, nbytes, offset);
+		ptr += nbytes;
+		len -= nbytes;
+		sg++;
+		npages++;
+	}
+	return npages;
+
+err:
+	/* Put pages that we hold */
+	for (sg = sgl; sg != &sgl[npages]; sg++)
+		put_page(sg_page(sg));
+	return ret;
+}
+
+static int vhost_scsi_map_iov_to_sgl(struct tcm_vhost_cmd *tv_cmd,
+	struct iovec *iov, unsigned int niov, int write)
+{
+	int ret;
+	unsigned int i;
+	u32 sgl_count;
+	struct scatterlist *sg;
+
+	/*
+	 * Find out how long sglist needs to be
+	 */
+	sgl_count = 0;
+	for (i = 0; i < niov; i++) {
+		sgl_count += (((uintptr_t)iov[i].iov_base + iov[i].iov_len +
+				PAGE_SIZE - 1) >> PAGE_SHIFT) -
+				((uintptr_t)iov[i].iov_base >> PAGE_SHIFT);
+	}
+	/* TODO overflow checking */
+
+	sg = kmalloc(sizeof(tv_cmd->tvc_sgl[0]) * sgl_count, GFP_ATOMIC);
+	if (!sg)
+		return -ENOMEM;
+	pr_debug("%s sg %p sgl_count %u is_err %d\n", __func__,
+	       sg, sgl_count, !sg);
+	sg_init_table(sg, sgl_count);
+
+	tv_cmd->tvc_sgl = sg;
+	tv_cmd->tvc_sgl_count = sgl_count;
+
+	pr_debug("Mapping %u iovecs for %u pages\n", niov, sgl_count);
+	for (i = 0; i < niov; i++) {
+		ret = vhost_scsi_map_to_sgl(sg, sgl_count, iov[i].iov_base,
+					iov[i].iov_len, write);
+		if (ret < 0) {
+			for (i = 0; i < tv_cmd->tvc_sgl_count; i++)
+				put_page(sg_page(&tv_cmd->tvc_sgl[i]));
+			kfree(tv_cmd->tvc_sgl);
+			tv_cmd->tvc_sgl = NULL;
+			tv_cmd->tvc_sgl_count = 0;
+			return ret;
+		}
+
+		sg += ret;
+		sgl_count -= ret;
+	}
+	return 0;
+}
+
+static void tcm_vhost_submission_work(struct work_struct *work)
+{
+	struct tcm_vhost_cmd *tv_cmd =
+		container_of(work, struct tcm_vhost_cmd, work);
+	struct se_cmd *se_cmd = &tv_cmd->tvc_se_cmd;
+	struct scatterlist *sg_ptr, *sg_bidi_ptr = NULL;
+	int rc, sg_no_bidi = 0;
+	/*
+	 * Locate the struct se_lun pointer based on v_req->lun, and
+	 * attach it to struct se_cmd
+	 */
+	rc = transport_lookup_cmd_lun(&tv_cmd->tvc_se_cmd, tv_cmd->tvc_lun);
+	if (rc < 0) {
+		pr_err("Failed to look up lun: %d\n", tv_cmd->tvc_lun);
+		transport_send_check_condition_and_sense(&tv_cmd->tvc_se_cmd,
+			tv_cmd->tvc_se_cmd.scsi_sense_reason, 0);
+		transport_generic_free_cmd(se_cmd, 0);
+		return;
+	}
+
+	rc = target_setup_cmd_from_cdb(se_cmd, tv_cmd->tvc_cdb);
+	if (rc == -ENOMEM) {
+		transport_send_check_condition_and_sense(se_cmd,
+				TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
+		transport_generic_free_cmd(se_cmd, 0);
+		return;
+	} else if (rc < 0) {
+		if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
+			tcm_vhost_queue_status(se_cmd);
+		else
+			transport_send_check_condition_and_sense(se_cmd,
+					se_cmd->scsi_sense_reason, 0);
+		transport_generic_free_cmd(se_cmd, 0);
+		return;
+	}
+
+	if (tv_cmd->tvc_sgl_count) {
+		sg_ptr = tv_cmd->tvc_sgl;
+		/*
+		 * For BIDI commands, pass in the extra READ buffer
+		 * to transport_generic_map_mem_to_cmd() below..
+		 */
+/* FIXME: Fix BIDI operation in tcm_vhost_submission_work() */
+#if 0
+		if (se_cmd->se_cmd_flags & SCF_BIDI) {
+			sg_bidi_ptr = NULL;
+			sg_no_bidi = 0;
+		}
+#endif
+	} else {
+		sg_ptr = NULL;
+	}
+
+	rc = transport_generic_map_mem_to_cmd(se_cmd, sg_ptr,
+				tv_cmd->tvc_sgl_count, sg_bidi_ptr,
+				sg_no_bidi);
+	if (rc < 0) {
+		transport_send_check_condition_and_sense(se_cmd,
+				se_cmd->scsi_sense_reason, 0);
+		transport_generic_free_cmd(se_cmd, 0);
+		return;
+	}
+	transport_handle_cdb_direct(se_cmd);
+}
+
+static void vhost_scsi_handle_vq(struct vhost_scsi *vs)
+{
+	struct vhost_virtqueue *vq = &vs->vqs[2];
+	struct virtio_scsi_cmd_req v_req;
+	struct tcm_vhost_tpg *tv_tpg;
+	struct tcm_vhost_cmd *tv_cmd;
+	u32 exp_data_len, data_first, data_num, data_direction;
+	unsigned out, in, i;
+	int head, ret;
+
+	/* Must use ioctl VHOST_SCSI_SET_ENDPOINT */
+	tv_tpg = vs->vs_tpg;
+	if (unlikely(!tv_tpg)) {
+		pr_err("%s endpoint not set\n", __func__);
+		return;
+	}
+
+	mutex_lock(&vq->mutex);
+	vhost_disable_notify(&vs->dev, vq);
+
+	for (;;) {
+		head = vhost_get_vq_desc(&vs->dev, vq, vq->iov,
+					ARRAY_SIZE(vq->iov), &out, &in,
+					NULL, NULL);
+		pr_debug("vhost_get_vq_desc: head: %d, out: %u in: %u\n",
+					head, out, in);
+		/* On error, stop handling until the next kick. */
+		if (unlikely(head < 0))
+			break;
+		/* Nothing new?  Wait for eventfd to tell us they refilled. */
+		if (head == vq->num) {
+			if (unlikely(vhost_enable_notify(&vs->dev, vq))) {
+				vhost_disable_notify(&vs->dev, vq);
+				continue;
+			}
+			break;
+		}
+
+/* FIXME: BIDI operation */
+		if (out == 1 && in == 1) {
+			data_direction = DMA_NONE;
+			data_first = 0;
+			data_num = 0;
+		} else if (out == 1 && in > 1) {
+			data_direction = DMA_FROM_DEVICE;
+			data_first = out + 1;
+			data_num = in - 1;
+		} else if (out > 1 && in == 1) {
+			data_direction = DMA_TO_DEVICE;
+			data_first = 1;
+			data_num = out - 1;
+		} else {
+			vq_err(vq, "Invalid buffer layout out: %u in: %u\n",
+					out, in);
+			break;
+		}
+
+		/*
+		 * Check for a sane resp buffer so we can report errors to
+		 * the guest.
+		 */
+		if (unlikely(vq->iov[out].iov_len !=
+					sizeof(struct virtio_scsi_cmd_resp))) {
+			vq_err(vq, "Expecting virtio_scsi_cmd_resp, got %zu"
+				" bytes\n", vq->iov[out].iov_len);
+			break;
+		}
+
+		if (unlikely(vq->iov[0].iov_len != sizeof(v_req))) {
+			vq_err(vq, "Expecting virtio_scsi_cmd_req, got %zu"
+				" bytes\n", vq->iov[0].iov_len);
+			break;
+		}
+		pr_debug("Calling __copy_from_user: vq->iov[0].iov_base: %p,"
+			" len: %zu\n", vq->iov[0].iov_base, sizeof(v_req));
+		ret = __copy_from_user(&v_req, vq->iov[0].iov_base,
+				sizeof(v_req));
+		if (unlikely(ret)) {
+			vq_err(vq, "Faulted on virtio_scsi_cmd_req\n");
+			break;
+		}
+
+		exp_data_len = 0;
+		for (i = 0; i < data_num; i++)
+			exp_data_len += vq->iov[data_first + i].iov_len;
+
+		tv_cmd = vhost_scsi_allocate_cmd(tv_tpg, &v_req,
+					exp_data_len, data_direction);
+		if (IS_ERR(tv_cmd)) {
+			vq_err(vq, "vhost_scsi_allocate_cmd failed %ld\n",
+					PTR_ERR(tv_cmd));
+			break;
+		}
+		pr_debug("Allocated tv_cmd: %p exp_data_len: %d, data_direction"
+			": %d\n", tv_cmd, exp_data_len, data_direction);
+
+		tv_cmd->tvc_vhost = vs;
+
+		if (unlikely(vq->iov[out].iov_len !=
+				sizeof(struct virtio_scsi_cmd_resp))) {
+			vq_err(vq, "Expecting virtio_scsi_cmd_resp, got %zu"
+				" bytes, out: %d, in: %d\n",
+				vq->iov[out].iov_len, out, in);
+			break;
+		}
+
+		tv_cmd->tvc_resp = vq->iov[out].iov_base;
+
+		/*
+		 * Copy in the recieved CDB descriptor into tv_cmd->tvc_cdb
+		 * that will be used by tcm_vhost_new_cmd_map() and down into
+		 * target_setup_cmd_from_cdb()
+		 */
+		memcpy(tv_cmd->tvc_cdb, v_req.cdb, TCM_VHOST_MAX_CDB_SIZE);
+		/*
+		 * Check that the recieved CDB size does not exceeded our
+		 * hardcoded max for tcm_vhost
+		 */
+		/* TODO what if cdb was too small for varlen cdb header? */
+		if (unlikely(scsi_command_size(tv_cmd->tvc_cdb) >
+					TCM_VHOST_MAX_CDB_SIZE)) {
+			vq_err(vq, "Received SCSI CDB with command_size: %d that"
+				" exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
+				scsi_command_size(tv_cmd->tvc_cdb),
+				TCM_VHOST_MAX_CDB_SIZE);
+			break; /* TODO */
+		}
+		tv_cmd->tvc_lun = ((v_req.lun[2] << 8) | v_req.lun[3]) & 0x3FFF;
+
+		pr_debug("vhost_scsi got command opcode: %#02x, lun: %d\n",
+			tv_cmd->tvc_cdb[0], tv_cmd->tvc_lun);
+
+		if (data_direction != DMA_NONE) {
+			ret = vhost_scsi_map_iov_to_sgl(tv_cmd,
+					&vq->iov[data_first], data_num,
+					data_direction == DMA_TO_DEVICE);
+			if (unlikely(ret)) {
+				vq_err(vq, "Failed to map iov to sgl\n");
+				break; /* TODO */
+			}
+		}
+
+		/*
+		 * Save the descriptor from vhost_get_vq_desc() to be used to
+		 * complete the virtio-scsi request in TCM callback context via
+		 * tcm_vhost_queue_data_in() and tcm_vhost_queue_status()
+		 */
+		tv_cmd->tvc_vq_desc = head;
+		/*
+		 * Dispatch tv_cmd descriptor for cmwq execution in process
+		 * context provided by tcm_vhost_workqueue.  This also ensures
+		 * tv_cmd is executed on the same kworker CPU as this vhost
+		 * thread to gain positive L2 cache locality effects..
+		 */
+		INIT_WORK(&tv_cmd->work, tcm_vhost_submission_work);
+		queue_work(tcm_vhost_workqueue, &tv_cmd->work);
+	}
+
+	mutex_unlock(&vq->mutex);
+}
+
+static void vhost_scsi_ctl_handle_kick(struct vhost_work *work)
+{
+	pr_debug("%s: The handling func for control queue.\n", __func__);
+}
+
+static void vhost_scsi_evt_handle_kick(struct vhost_work *work)
+{
+	pr_debug("%s: The handling func for event queue.\n", __func__);
+}
+
+static void vhost_scsi_handle_kick(struct vhost_work *work)
+{
+	struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue,
+						poll.work);
+	struct vhost_scsi *vs = container_of(vq->dev, struct vhost_scsi, dev);
+
+	vhost_scsi_handle_vq(vs);
+}
+
+/*
+ * Called from vhost_scsi_ioctl() context to walk the list of available
+ * tcm_vhost_tpg with an active struct tcm_vhost_nexus
+ */
+static int vhost_scsi_set_endpoint(
+	struct vhost_scsi *vs,
+	struct vhost_scsi_target *t)
+{
+	struct tcm_vhost_tport *tv_tport;
+	struct tcm_vhost_tpg *tv_tpg;
+	int index;
+
+	mutex_lock(&vs->dev.mutex);
+	/* Verify that ring has been setup correctly. */
+	for (index = 0; index < vs->dev.nvqs; ++index) {
+		/* Verify that ring has been setup correctly. */
+		if (!vhost_vq_access_ok(&vs->vqs[index])) {
+			mutex_unlock(&vs->dev.mutex);
+			return -EFAULT;
+		}
+	}
+	mutex_unlock(&vs->dev.mutex);
+
+	mutex_lock(&tcm_vhost_mutex);
+	list_for_each_entry(tv_tpg, &tcm_vhost_list, tv_tpg_list) {
+		mutex_lock(&tv_tpg->tv_tpg_mutex);
+		if (!tv_tpg->tpg_nexus) {
+			mutex_unlock(&tv_tpg->tv_tpg_mutex);
+			continue;
+		}
+		if (tv_tpg->tv_tpg_vhost_count != 0) {
+			mutex_unlock(&tv_tpg->tv_tpg_mutex);
+			continue;
+		}
+		tv_tport = tv_tpg->tport;
+
+		if (!strcmp(tv_tport->tport_name, t->vhost_wwpn) &&
+		    (tv_tpg->tport_tpgt == t->vhost_tpgt)) {
+			tv_tpg->tv_tpg_vhost_count++;
+			mutex_unlock(&tv_tpg->tv_tpg_mutex);
+			mutex_unlock(&tcm_vhost_mutex);
+
+			mutex_lock(&vs->dev.mutex);
+			if (vs->vs_tpg) {
+				mutex_unlock(&vs->dev.mutex);
+				mutex_lock(&tv_tpg->tv_tpg_mutex);
+				tv_tpg->tv_tpg_vhost_count--;
+				mutex_unlock(&tv_tpg->tv_tpg_mutex);
+				return -EEXIST;
+			}
+
+			vs->vs_tpg = tv_tpg;
+			smp_mb__after_atomic_inc();
+			mutex_unlock(&vs->dev.mutex);
+			return 0;
+		}
+		mutex_unlock(&tv_tpg->tv_tpg_mutex);
+	}
+	mutex_unlock(&tcm_vhost_mutex);
+	return -EINVAL;
+}
+
+static int vhost_scsi_clear_endpoint(
+	struct vhost_scsi *vs,
+	struct vhost_scsi_target *t)
+{
+	struct tcm_vhost_tport *tv_tport;
+	struct tcm_vhost_tpg *tv_tpg;
+	int index, ret;
+
+	mutex_lock(&vs->dev.mutex);
+	/* Verify that ring has been setup correctly. */
+	for (index = 0; index < vs->dev.nvqs; ++index) {
+		if (!vhost_vq_access_ok(&vs->vqs[index])) {
+			ret = -EFAULT;
+			goto err;
+		}
+	}
+
+	if (!vs->vs_tpg) {
+		ret = -ENODEV;
+		goto err;
+	}
+	tv_tpg = vs->vs_tpg;
+	tv_tport = tv_tpg->tport;
+
+	if (strcmp(tv_tport->tport_name, t->vhost_wwpn) ||
+	    (tv_tpg->tport_tpgt != t->vhost_tpgt)) {
+		pr_warn("tv_tport->tport_name: %s, tv_tpg->tport_tpgt: %hu"
+			" does not match t->vhost_wwpn: %s, t->vhost_tpgt: %hu\n",
+			tv_tport->tport_name, tv_tpg->tport_tpgt,
+			t->vhost_wwpn, t->vhost_tpgt);
+		ret = -EINVAL;
+		goto err;
+	}
+	tv_tpg->tv_tpg_vhost_count--;
+	vs->vs_tpg = NULL;
+	mutex_unlock(&vs->dev.mutex);
+
+	return 0;
+
+err:
+	mutex_unlock(&vs->dev.mutex);
+	return ret;
+}
+
+static int vhost_scsi_open(struct inode *inode, struct file *f)
+{
+	struct vhost_scsi *s;
+	int r;
+
+	s = kzalloc(sizeof(*s), GFP_KERNEL);
+	if (!s)
+		return -ENOMEM;
+
+	vhost_work_init(&s->vs_completion_work, vhost_scsi_complete_cmd_work);
+	INIT_LIST_HEAD(&s->vs_completion_list);
+	spin_lock_init(&s->vs_completion_lock);
+
+	s->vqs[VHOST_SCSI_VQ_CTL].handle_kick = vhost_scsi_ctl_handle_kick;
+	s->vqs[VHOST_SCSI_VQ_EVT].handle_kick = vhost_scsi_evt_handle_kick;
+	s->vqs[VHOST_SCSI_VQ_IO].handle_kick = vhost_scsi_handle_kick;
+	r = vhost_dev_init(&s->dev, s->vqs, 3);
+	if (r < 0) {
+		kfree(s);
+		return r;
+	}
+
+	f->private_data = s;
+	return 0;
+}
+
+static int vhost_scsi_release(struct inode *inode, struct file *f)
+{
+	struct vhost_scsi *s = f->private_data;
+
+	if (s->vs_tpg && s->vs_tpg->tport) {
+		struct vhost_scsi_target backend;
+
+		memcpy(backend.vhost_wwpn, s->vs_tpg->tport->tport_name,
+				sizeof(backend.vhost_wwpn));
+		backend.vhost_tpgt = s->vs_tpg->tport_tpgt;
+		vhost_scsi_clear_endpoint(s, &backend);
+	}
+
+	vhost_dev_cleanup(&s->dev, false);
+	kfree(s);
+	return 0;
+}
+
+static void vhost_scsi_flush_vq(struct vhost_scsi *vs, int index)
+{
+	vhost_poll_flush(&vs->dev.vqs[index].poll);
+}
+
+static void vhost_scsi_flush(struct vhost_scsi *vs)
+{
+	vhost_scsi_flush_vq(vs, VHOST_SCSI_VQ_CTL);
+	vhost_scsi_flush_vq(vs, VHOST_SCSI_VQ_EVT);
+	vhost_scsi_flush_vq(vs, VHOST_SCSI_VQ_IO);
+}
+
+static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features)
+{
+	if (features & ~VHOST_FEATURES)
+		return -EOPNOTSUPP;
+
+	mutex_lock(&vs->dev.mutex);
+	if ((features & (1 << VHOST_F_LOG_ALL)) &&
+	    !vhost_log_access_ok(&vs->dev)) {
+		mutex_unlock(&vs->dev.mutex);
+		return -EFAULT;
+	}
+	vs->dev.acked_features = features;
+	smp_wmb();
+	vhost_scsi_flush(vs);
+	mutex_unlock(&vs->dev.mutex);
+	return 0;
+}
+
+static long vhost_scsi_ioctl(struct file *f, unsigned int ioctl,
+				unsigned long arg)
+{
+	struct vhost_scsi *vs = f->private_data;
+	struct vhost_scsi_target backend;
+	void __user *argp = (void __user *)arg;
+	u64 __user *featurep = argp;
+	u64 features;
+	int r, abi_version = VHOST_SCSI_ABI_VERSION;
+
+	switch (ioctl) {
+	case VHOST_SCSI_SET_ENDPOINT:
+		if (copy_from_user(&backend, argp, sizeof backend))
+			return -EFAULT;
+		if (backend.reserved != 0)
+			return -EOPNOTSUPP;
+
+		return vhost_scsi_set_endpoint(vs, &backend);
+	case VHOST_SCSI_CLEAR_ENDPOINT:
+		if (copy_from_user(&backend, argp, sizeof backend))
+			return -EFAULT;
+		if (backend.reserved != 0)
+			return -EOPNOTSUPP;
+
+		return vhost_scsi_clear_endpoint(vs, &backend);
+	case VHOST_SCSI_GET_ABI_VERSION:
+		if (copy_to_user(argp, &abi_version, sizeof abi_version))
+			return -EFAULT;
+		return 0;
+	case VHOST_GET_FEATURES:
+		features = VHOST_FEATURES;
+		if (copy_to_user(featurep, &features, sizeof features))
+			return -EFAULT;
+		return 0;
+	case VHOST_SET_FEATURES:
+		if (copy_from_user(&features, featurep, sizeof features))
+			return -EFAULT;
+		return vhost_scsi_set_features(vs, features);
+	default:
+		mutex_lock(&vs->dev.mutex);
+		r = vhost_dev_ioctl(&vs->dev, ioctl, arg);
+		mutex_unlock(&vs->dev.mutex);
+		return r;
+	}
+}
+
+#ifdef CONFIG_COMPAT
+static long vhost_scsi_compat_ioctl(struct file *f, unsigned int ioctl,
+				unsigned long arg)
+{
+	return vhost_scsi_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
+}
+#endif
+
+static const struct file_operations vhost_scsi_fops = {
+	.owner          = THIS_MODULE,
+	.release        = vhost_scsi_release,
+	.unlocked_ioctl = vhost_scsi_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= vhost_scsi_compat_ioctl,
+#endif
+	.open           = vhost_scsi_open,
+	.llseek		= noop_llseek,
+};
+
+static struct miscdevice vhost_scsi_misc = {
+	MISC_DYNAMIC_MINOR,
+	"vhost-scsi",
+	&vhost_scsi_fops,
+};
+
+static int __init vhost_scsi_register(void)
+{
+	return misc_register(&vhost_scsi_misc);
+}
+
+static int vhost_scsi_deregister(void)
+{
+	return misc_deregister(&vhost_scsi_misc);
+}
+
+static char *tcm_vhost_dump_proto_id(struct tcm_vhost_tport *tport)
+{
+	switch (tport->tport_proto_id) {
+	case SCSI_PROTOCOL_SAS:
+		return "SAS";
+	case SCSI_PROTOCOL_FCP:
+		return "FCP";
+	case SCSI_PROTOCOL_ISCSI:
+		return "iSCSI";
+	default:
+		break;
+	}
+
+	return "Unknown";
+}
+
+static int tcm_vhost_port_link(struct se_portal_group *se_tpg,
+	struct se_lun *lun)
+{
+	struct tcm_vhost_tpg *tv_tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+
+	mutex_lock(&tv_tpg->tv_tpg_mutex);
+	tv_tpg->tv_tpg_port_count++;
+	mutex_unlock(&tv_tpg->tv_tpg_mutex);
+
+	return 0;
+}
+
+static void tcm_vhost_port_unlink(struct se_portal_group *se_tpg,
+	struct se_lun *se_lun)
+{
+	struct tcm_vhost_tpg *tv_tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+
+	mutex_lock(&tv_tpg->tv_tpg_mutex);
+	tv_tpg->tv_tpg_port_count--;
+	mutex_unlock(&tv_tpg->tv_tpg_mutex);
+}
+
+static struct se_node_acl *tcm_vhost_make_nodeacl(
+	struct se_portal_group *se_tpg,
+	struct config_group *group,
+	const char *name)
+{
+	struct se_node_acl *se_nacl, *se_nacl_new;
+	struct tcm_vhost_nacl *nacl;
+	u64 wwpn = 0;
+	u32 nexus_depth;
+
+	/* tcm_vhost_parse_wwn(name, &wwpn, 1) < 0)
+		return ERR_PTR(-EINVAL); */
+	se_nacl_new = tcm_vhost_alloc_fabric_acl(se_tpg);
+	if (!se_nacl_new)
+		return ERR_PTR(-ENOMEM);
+
+	nexus_depth = 1;
+	/*
+	 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
+	 * when converting a NodeACL from demo mode -> explict
+	 */
+	se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
+				name, nexus_depth);
+	if (IS_ERR(se_nacl)) {
+		tcm_vhost_release_fabric_acl(se_tpg, se_nacl_new);
+		return se_nacl;
+	}
+	/*
+	 * Locate our struct tcm_vhost_nacl and set the FC Nport WWPN
+	 */
+	nacl = container_of(se_nacl, struct tcm_vhost_nacl, se_node_acl);
+	nacl->iport_wwpn = wwpn;
+
+	return se_nacl;
+}
+
+static void tcm_vhost_drop_nodeacl(struct se_node_acl *se_acl)
+{
+	struct tcm_vhost_nacl *nacl = container_of(se_acl,
+				struct tcm_vhost_nacl, se_node_acl);
+	core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
+	kfree(nacl);
+}
+
+static int tcm_vhost_make_nexus(struct tcm_vhost_tpg *tv_tpg,
+	const char *name)
+{
+	struct se_portal_group *se_tpg;
+	struct tcm_vhost_nexus *tv_nexus;
+
+	mutex_lock(&tv_tpg->tv_tpg_mutex);
+	if (tv_tpg->tpg_nexus) {
+		mutex_unlock(&tv_tpg->tv_tpg_mutex);
+		pr_debug("tv_tpg->tpg_nexus already exists\n");
+		return -EEXIST;
+	}
+	se_tpg = &tv_tpg->se_tpg;
+
+	tv_nexus = kzalloc(sizeof(struct tcm_vhost_nexus), GFP_KERNEL);
+	if (!tv_nexus) {
+		mutex_unlock(&tv_tpg->tv_tpg_mutex);
+		pr_err("Unable to allocate struct tcm_vhost_nexus\n");
+		return -ENOMEM;
+	}
+	/*
+	 *  Initialize the struct se_session pointer
+	 */
+	tv_nexus->tvn_se_sess = transport_init_session();
+	if (IS_ERR(tv_nexus->tvn_se_sess)) {
+		mutex_unlock(&tv_tpg->tv_tpg_mutex);
+		kfree(tv_nexus);
+		return -ENOMEM;
+	}
+	/*
+	 * Since we are running in 'demo mode' this call with generate a
+	 * struct se_node_acl for the tcm_vhost struct se_portal_group with
+	 * the SCSI Initiator port name of the passed configfs group 'name'.
+	 */
+	tv_nexus->tvn_se_sess->se_node_acl = core_tpg_check_initiator_node_acl(
+				se_tpg, (unsigned char *)name);
+	if (!tv_nexus->tvn_se_sess->se_node_acl) {
+		mutex_unlock(&tv_tpg->tv_tpg_mutex);
+		pr_debug("core_tpg_check_initiator_node_acl() failed"
+				" for %s\n", name);
+		transport_free_session(tv_nexus->tvn_se_sess);
+		kfree(tv_nexus);
+		return -ENOMEM;
+	}
+	/*
+	 * Now register the TCM vhost virtual I_T Nexus as active with the
+	 * call to __transport_register_session()
+	 */
+	__transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+			tv_nexus->tvn_se_sess, tv_nexus);
+	tv_tpg->tpg_nexus = tv_nexus;
+
+	mutex_unlock(&tv_tpg->tv_tpg_mutex);
+	return 0;
+}
+
+static int tcm_vhost_drop_nexus(struct tcm_vhost_tpg *tpg)
+{
+	struct se_session *se_sess;
+	struct tcm_vhost_nexus *tv_nexus;
+
+	mutex_lock(&tpg->tv_tpg_mutex);
+	tv_nexus = tpg->tpg_nexus;
+	if (!tv_nexus) {
+		mutex_unlock(&tpg->tv_tpg_mutex);
+		return -ENODEV;
+	}
+
+	se_sess = tv_nexus->tvn_se_sess;
+	if (!se_sess) {
+		mutex_unlock(&tpg->tv_tpg_mutex);
+		return -ENODEV;
+	}
+
+	if (tpg->tv_tpg_port_count != 0) {
+		mutex_unlock(&tpg->tv_tpg_mutex);
+		pr_err("Unable to remove TCM_vhost I_T Nexus with"
+			" active TPG port count: %d\n",
+			tpg->tv_tpg_port_count);
+		return -EBUSY;
+	}
+
+	if (tpg->tv_tpg_vhost_count != 0) {
+		mutex_unlock(&tpg->tv_tpg_mutex);
+		pr_err("Unable to remove TCM_vhost I_T Nexus with"
+			" active TPG vhost count: %d\n",
+			tpg->tv_tpg_vhost_count);
+		return -EBUSY;
+	}
+
+	pr_debug("TCM_vhost_ConfigFS: Removing I_T Nexus to emulated"
+		" %s Initiator Port: %s\n", tcm_vhost_dump_proto_id(tpg->tport),
+		tv_nexus->tvn_se_sess->se_node_acl->initiatorname);
+	/*
+	 * Release the SCSI I_T Nexus to the emulated vhost Target Port
+	 */
+	transport_deregister_session(tv_nexus->tvn_se_sess);
+	tpg->tpg_nexus = NULL;
+	mutex_unlock(&tpg->tv_tpg_mutex);
+
+	kfree(tv_nexus);
+	return 0;
+}
+
+static ssize_t tcm_vhost_tpg_show_nexus(struct se_portal_group *se_tpg,
+	char *page)
+{
+	struct tcm_vhost_tpg *tv_tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_nexus *tv_nexus;
+	ssize_t ret;
+
+	mutex_lock(&tv_tpg->tv_tpg_mutex);
+	tv_nexus = tv_tpg->tpg_nexus;
+	if (!tv_nexus) {
+		mutex_unlock(&tv_tpg->tv_tpg_mutex);
+		return -ENODEV;
+	}
+	ret = snprintf(page, PAGE_SIZE, "%s\n",
+			tv_nexus->tvn_se_sess->se_node_acl->initiatorname);
+	mutex_unlock(&tv_tpg->tv_tpg_mutex);
+
+	return ret;
+}
+
+static ssize_t tcm_vhost_tpg_store_nexus(struct se_portal_group *se_tpg,
+	const char *page,
+	size_t count)
+{
+	struct tcm_vhost_tpg *tv_tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+	struct tcm_vhost_tport *tport_wwn = tv_tpg->tport;
+	unsigned char i_port[TCM_VHOST_NAMELEN], *ptr, *port_ptr;
+	int ret;
+	/*
+	 * Shutdown the active I_T nexus if 'NULL' is passed..
+	 */
+	if (!strncmp(page, "NULL", 4)) {
+		ret = tcm_vhost_drop_nexus(tv_tpg);
+		return (!ret) ? count : ret;
+	}
+	/*
+	 * Otherwise make sure the passed virtual Initiator port WWN matches
+	 * the fabric protocol_id set in tcm_vhost_make_tport(), and call
+	 * tcm_vhost_make_nexus().
+	 */
+	if (strlen(page) >= TCM_VHOST_NAMELEN) {
+		pr_err("Emulated NAA Sas Address: %s, exceeds"
+				" max: %d\n", page, TCM_VHOST_NAMELEN);
+		return -EINVAL;
+	}
+	snprintf(&i_port[0], TCM_VHOST_NAMELEN, "%s", page);
+
+	ptr = strstr(i_port, "naa.");
+	if (ptr) {
+		if (tport_wwn->tport_proto_id != SCSI_PROTOCOL_SAS) {
+			pr_err("Passed SAS Initiator Port %s does not"
+				" match target port protoid: %s\n", i_port,
+				tcm_vhost_dump_proto_id(tport_wwn));
+			return -EINVAL;
+		}
+		port_ptr = &i_port[0];
+		goto check_newline;
+	}
+	ptr = strstr(i_port, "fc.");
+	if (ptr) {
+		if (tport_wwn->tport_proto_id != SCSI_PROTOCOL_FCP) {
+			pr_err("Passed FCP Initiator Port %s does not"
+				" match target port protoid: %s\n", i_port,
+				tcm_vhost_dump_proto_id(tport_wwn));
+			return -EINVAL;
+		}
+		port_ptr = &i_port[3]; /* Skip over "fc." */
+		goto check_newline;
+	}
+	ptr = strstr(i_port, "iqn.");
+	if (ptr) {
+		if (tport_wwn->tport_proto_id != SCSI_PROTOCOL_ISCSI) {
+			pr_err("Passed iSCSI Initiator Port %s does not"
+				" match target port protoid: %s\n", i_port,
+				tcm_vhost_dump_proto_id(tport_wwn));
+			return -EINVAL;
+		}
+		port_ptr = &i_port[0];
+		goto check_newline;
+	}
+	pr_err("Unable to locate prefix for emulated Initiator Port:"
+			" %s\n", i_port);
+	return -EINVAL;
+	/*
+	 * Clear any trailing newline for the NAA WWN
+	 */
+check_newline:
+	if (i_port[strlen(i_port)-1] == '\n')
+		i_port[strlen(i_port)-1] = '\0';
+
+	ret = tcm_vhost_make_nexus(tv_tpg, port_ptr);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+TF_TPG_BASE_ATTR(tcm_vhost, nexus, S_IRUGO | S_IWUSR);
+
+static struct configfs_attribute *tcm_vhost_tpg_attrs[] = {
+	&tcm_vhost_tpg_nexus.attr,
+	NULL,
+};
+
+static struct se_portal_group *tcm_vhost_make_tpg(struct se_wwn *wwn,
+	struct config_group *group,
+	const char *name)
+{
+	struct tcm_vhost_tport *tport = container_of(wwn,
+			struct tcm_vhost_tport, tport_wwn);
+
+	struct tcm_vhost_tpg *tpg;
+	unsigned long tpgt;
+	int ret;
+
+	if (strstr(name, "tpgt_") != name)
+		return ERR_PTR(-EINVAL);
+	if (kstrtoul(name + 5, 10, &tpgt) || tpgt > UINT_MAX)
+		return ERR_PTR(-EINVAL);
+
+	tpg = kzalloc(sizeof(struct tcm_vhost_tpg), GFP_KERNEL);
+	if (!tpg) {
+		pr_err("Unable to allocate struct tcm_vhost_tpg");
+		return ERR_PTR(-ENOMEM);
+	}
+	mutex_init(&tpg->tv_tpg_mutex);
+	INIT_LIST_HEAD(&tpg->tv_tpg_list);
+	tpg->tport = tport;
+	tpg->tport_tpgt = tpgt;
+
+	ret = core_tpg_register(&tcm_vhost_fabric_configfs->tf_ops, wwn,
+				&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
+	if (ret < 0) {
+		kfree(tpg);
+		return NULL;
+	}
+	mutex_lock(&tcm_vhost_mutex);
+	list_add_tail(&tpg->tv_tpg_list, &tcm_vhost_list);
+	mutex_unlock(&tcm_vhost_mutex);
+
+	return &tpg->se_tpg;
+}
+
+static void tcm_vhost_drop_tpg(struct se_portal_group *se_tpg)
+{
+	struct tcm_vhost_tpg *tpg = container_of(se_tpg,
+				struct tcm_vhost_tpg, se_tpg);
+
+	mutex_lock(&tcm_vhost_mutex);
+	list_del(&tpg->tv_tpg_list);
+	mutex_unlock(&tcm_vhost_mutex);
+	/*
+	 * Release the virtual I_T Nexus for this vhost TPG
+	 */
+	tcm_vhost_drop_nexus(tpg);
+	/*
+	 * Deregister the se_tpg from TCM..
+	 */
+	core_tpg_deregister(se_tpg);
+	kfree(tpg);
+}
+
+static struct se_wwn *tcm_vhost_make_tport(struct target_fabric_configfs *tf,
+	struct config_group *group,
+	const char *name)
+{
+	struct tcm_vhost_tport *tport;
+	char *ptr;
+	u64 wwpn = 0;
+	int off = 0;
+
+	/* if (tcm_vhost_parse_wwn(name, &wwpn, 1) < 0)
+		return ERR_PTR(-EINVAL); */
+
+	tport = kzalloc(sizeof(struct tcm_vhost_tport), GFP_KERNEL);
+	if (!tport) {
+		pr_err("Unable to allocate struct tcm_vhost_tport");
+		return ERR_PTR(-ENOMEM);
+	}
+	tport->tport_wwpn = wwpn;
+	/*
+	 * Determine the emulated Protocol Identifier and Target Port Name
+	 * based on the incoming configfs directory name.
+	 */
+	ptr = strstr(name, "naa.");
+	if (ptr) {
+		tport->tport_proto_id = SCSI_PROTOCOL_SAS;
+		goto check_len;
+	}
+	ptr = strstr(name, "fc.");
+	if (ptr) {
+		tport->tport_proto_id = SCSI_PROTOCOL_FCP;
+		off = 3; /* Skip over "fc." */
+		goto check_len;
+	}
+	ptr = strstr(name, "iqn.");
+	if (ptr) {
+		tport->tport_proto_id = SCSI_PROTOCOL_ISCSI;
+		goto check_len;
+	}
+
+	pr_err("Unable to locate prefix for emulated Target Port:"
+			" %s\n", name);
+	kfree(tport);
+	return ERR_PTR(-EINVAL);
+
+check_len:
+	if (strlen(name) >= TCM_VHOST_NAMELEN) {
+		pr_err("Emulated %s Address: %s, exceeds"
+			" max: %d\n", name, tcm_vhost_dump_proto_id(tport),
+			TCM_VHOST_NAMELEN);
+		kfree(tport);
+		return ERR_PTR(-EINVAL);
+	}
+	snprintf(&tport->tport_name[0], TCM_VHOST_NAMELEN, "%s", &name[off]);
+
+	pr_debug("TCM_VHost_ConfigFS: Allocated emulated Target"
+		" %s Address: %s\n", tcm_vhost_dump_proto_id(tport), name);
+
+	return &tport->tport_wwn;
+}
+
+static void tcm_vhost_drop_tport(struct se_wwn *wwn)
+{
+	struct tcm_vhost_tport *tport = container_of(wwn,
+				struct tcm_vhost_tport, tport_wwn);
+
+	pr_debug("TCM_VHost_ConfigFS: Deallocating emulated Target"
+		" %s Address: %s\n", tcm_vhost_dump_proto_id(tport),
+		tport->tport_name);
+
+	kfree(tport);
+}
+
+static ssize_t tcm_vhost_wwn_show_attr_version(
+	struct target_fabric_configfs *tf,
+	char *page)
+{
+	return sprintf(page, "TCM_VHOST fabric module %s on %s/%s"
+		"on "UTS_RELEASE"\n", TCM_VHOST_VERSION, utsname()->sysname,
+		utsname()->machine);
+}
+
+TF_WWN_ATTR_RO(tcm_vhost, version);
+
+static struct configfs_attribute *tcm_vhost_wwn_attrs[] = {
+	&tcm_vhost_wwn_version.attr,
+	NULL,
+};
+
+static struct target_core_fabric_ops tcm_vhost_ops = {
+	.get_fabric_name		= tcm_vhost_get_fabric_name,
+	.get_fabric_proto_ident		= tcm_vhost_get_fabric_proto_ident,
+	.tpg_get_wwn			= tcm_vhost_get_fabric_wwn,
+	.tpg_get_tag			= tcm_vhost_get_tag,
+	.tpg_get_default_depth		= tcm_vhost_get_default_depth,
+	.tpg_get_pr_transport_id	= tcm_vhost_get_pr_transport_id,
+	.tpg_get_pr_transport_id_len	= tcm_vhost_get_pr_transport_id_len,
+	.tpg_parse_pr_out_transport_id	= tcm_vhost_parse_pr_out_transport_id,
+	.tpg_check_demo_mode		= tcm_vhost_check_true,
+	.tpg_check_demo_mode_cache	= tcm_vhost_check_true,
+	.tpg_check_demo_mode_write_protect = tcm_vhost_check_false,
+	.tpg_check_prod_mode_write_protect = tcm_vhost_check_false,
+	.tpg_alloc_fabric_acl		= tcm_vhost_alloc_fabric_acl,
+	.tpg_release_fabric_acl		= tcm_vhost_release_fabric_acl,
+	.tpg_get_inst_index		= tcm_vhost_tpg_get_inst_index,
+	.release_cmd			= tcm_vhost_release_cmd,
+	.shutdown_session		= tcm_vhost_shutdown_session,
+	.close_session			= tcm_vhost_close_session,
+	.sess_get_index			= tcm_vhost_sess_get_index,
+	.sess_get_initiator_sid		= NULL,
+	.write_pending			= tcm_vhost_write_pending,
+	.write_pending_status		= tcm_vhost_write_pending_status,
+	.set_default_node_attributes	= tcm_vhost_set_default_node_attrs,
+	.get_task_tag			= tcm_vhost_get_task_tag,
+	.get_cmd_state			= tcm_vhost_get_cmd_state,
+	.queue_data_in			= tcm_vhost_queue_data_in,
+	.queue_status			= tcm_vhost_queue_status,
+	.queue_tm_rsp			= tcm_vhost_queue_tm_rsp,
+	.get_fabric_sense_len		= tcm_vhost_get_fabric_sense_len,
+	.set_fabric_sense_len		= tcm_vhost_set_fabric_sense_len,
+	/*
+	 * Setup callers for generic logic in target_core_fabric_configfs.c
+	 */
+	.fabric_make_wwn		= tcm_vhost_make_tport,
+	.fabric_drop_wwn		= tcm_vhost_drop_tport,
+	.fabric_make_tpg		= tcm_vhost_make_tpg,
+	.fabric_drop_tpg		= tcm_vhost_drop_tpg,
+	.fabric_post_link		= tcm_vhost_port_link,
+	.fabric_pre_unlink		= tcm_vhost_port_unlink,
+	.fabric_make_np			= NULL,
+	.fabric_drop_np			= NULL,
+	.fabric_make_nodeacl		= tcm_vhost_make_nodeacl,
+	.fabric_drop_nodeacl		= tcm_vhost_drop_nodeacl,
+};
+
+static int tcm_vhost_register_configfs(void)
+{
+	struct target_fabric_configfs *fabric;
+	int ret;
+
+	pr_debug("TCM_VHOST fabric module %s on %s/%s"
+		" on "UTS_RELEASE"\n", TCM_VHOST_VERSION, utsname()->sysname,
+		utsname()->machine);
+	/*
+	 * Register the top level struct config_item_type with TCM core
+	 */
+	fabric = target_fabric_configfs_init(THIS_MODULE, "vhost");
+	if (IS_ERR(fabric)) {
+		pr_err("target_fabric_configfs_init() failed\n");
+		return PTR_ERR(fabric);
+	}
+	/*
+	 * Setup fabric->tf_ops from our local tcm_vhost_ops
+	 */
+	fabric->tf_ops = tcm_vhost_ops;
+	/*
+	 * Setup default attribute lists for various fabric->tf_cit_tmpl
+	 */
+	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_vhost_wwn_attrs;
+	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_vhost_tpg_attrs;
+	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	/*
+	 * Register the fabric for use within TCM
+	 */
+	ret = target_fabric_configfs_register(fabric);
+	if (ret < 0) {
+		pr_err("target_fabric_configfs_register() failed"
+				" for TCM_VHOST\n");
+		return ret;
+	}
+	/*
+	 * Setup our local pointer to *fabric
+	 */
+	tcm_vhost_fabric_configfs = fabric;
+	pr_debug("TCM_VHOST[0] - Set fabric -> tcm_vhost_fabric_configfs\n");
+	return 0;
+};
+
+static void tcm_vhost_deregister_configfs(void)
+{
+	if (!tcm_vhost_fabric_configfs)
+		return;
+
+	target_fabric_configfs_deregister(tcm_vhost_fabric_configfs);
+	tcm_vhost_fabric_configfs = NULL;
+	pr_debug("TCM_VHOST[0] - Cleared tcm_vhost_fabric_configfs\n");
+};
+
+static int __init tcm_vhost_init(void)
+{
+	int ret = -ENOMEM;
+	/*
+	 * Use our own dedicated workqueue for submitting I/O into
+	 * target core to avoid contention within system_wq.
+	 */
+	tcm_vhost_workqueue = alloc_workqueue("tcm_vhost", 0, 0);
+	if (!tcm_vhost_workqueue)
+		goto out;
+
+	ret = vhost_scsi_register();
+	if (ret < 0)
+		goto out_destroy_workqueue;
+
+	ret = tcm_vhost_register_configfs();
+	if (ret < 0)
+		goto out_vhost_scsi_deregister;
+
+	return 0;
+
+out_vhost_scsi_deregister:
+	vhost_scsi_deregister();
+out_destroy_workqueue:
+	destroy_workqueue(tcm_vhost_workqueue);
+out:
+	return ret;
+};
+
+static void tcm_vhost_exit(void)
+{
+	tcm_vhost_deregister_configfs();
+	vhost_scsi_deregister();
+	destroy_workqueue(tcm_vhost_workqueue);
+};
+
+MODULE_DESCRIPTION("TCM_VHOST series fabric driver");
+MODULE_LICENSE("GPL");
+module_init(tcm_vhost_init);
+module_exit(tcm_vhost_exit);
diff --git a/drivers/vhost/tcm_vhost.h b/drivers/vhost/tcm_vhost.h
new file mode 100644
index 00000000000..d9e93557d66
--- /dev/null
+++ b/drivers/vhost/tcm_vhost.h
@@ -0,0 +1,103 @@
+#define TCM_VHOST_VERSION  "v0.1"
+#define TCM_VHOST_NAMELEN 256
+#define TCM_VHOST_MAX_CDB_SIZE 32
+
+struct tcm_vhost_cmd {
+	/* Descriptor from vhost_get_vq_desc() for virt_queue segment */
+	int tvc_vq_desc;
+	/* The Tag from include/linux/virtio_scsi.h:struct virtio_scsi_cmd_req */
+	u64 tvc_tag;
+	/* The number of scatterlists associated with this cmd */
+	u32 tvc_sgl_count;
+	/* Saved unpacked SCSI LUN for tcm_vhost_submission_work() */
+	u32 tvc_lun;
+	/* Pointer to the SGL formatted memory from virtio-scsi */
+	struct scatterlist *tvc_sgl;
+	/* Pointer to response */
+	struct virtio_scsi_cmd_resp __user *tvc_resp;
+	/* Pointer to vhost_scsi for our device */
+	struct vhost_scsi *tvc_vhost;
+	/* The TCM I/O descriptor that is accessed via container_of() */
+	struct se_cmd tvc_se_cmd;
+	/* work item used for cmwq dispatch to tcm_vhost_submission_work() */
+	struct work_struct work;
+	/* Copy of the incoming SCSI command descriptor block (CDB) */
+	unsigned char tvc_cdb[TCM_VHOST_MAX_CDB_SIZE];
+	/* Sense buffer that will be mapped into outgoing status */
+	unsigned char tvc_sense_buf[TRANSPORT_SENSE_BUFFER];
+	/* Completed commands list, serviced from vhost worker thread */
+	struct list_head tvc_completion_list;
+};
+
+struct tcm_vhost_nexus {
+	/* Pointer to TCM session for I_T Nexus */
+	struct se_session *tvn_se_sess;
+};
+
+struct tcm_vhost_nacl {
+	/* Binary World Wide unique Port Name for Vhost Initiator port */
+	u64 iport_wwpn;
+	/* ASCII formatted WWPN for Sas Initiator port */
+	char iport_name[TCM_VHOST_NAMELEN];
+	/* Returned by tcm_vhost_make_nodeacl() */
+	struct se_node_acl se_node_acl;
+};
+
+struct tcm_vhost_tpg {
+	/* Vhost port target portal group tag for TCM */
+	u16 tport_tpgt;
+	/* Used to track number of TPG Port/Lun Links wrt to explict I_T Nexus shutdown */
+	int tv_tpg_port_count;
+	/* Used for vhost_scsi device reference to tpg_nexus, protected by tv_tpg_mutex */
+	int tv_tpg_vhost_count;
+	/* list for tcm_vhost_list */
+	struct list_head tv_tpg_list;
+	/* Used to protect access for tpg_nexus */
+	struct mutex tv_tpg_mutex;
+	/* Pointer to the TCM VHost I_T Nexus for this TPG endpoint */
+	struct tcm_vhost_nexus *tpg_nexus;
+	/* Pointer back to tcm_vhost_tport */
+	struct tcm_vhost_tport *tport;
+	/* Returned by tcm_vhost_make_tpg() */
+	struct se_portal_group se_tpg;
+};
+
+struct tcm_vhost_tport {
+	/* SCSI protocol the tport is providing */
+	u8 tport_proto_id;
+	/* Binary World Wide unique Port Name for Vhost Target port */
+	u64 tport_wwpn;
+	/* ASCII formatted WWPN for Vhost Target port */
+	char tport_name[TCM_VHOST_NAMELEN];
+	/* Returned by tcm_vhost_make_tport() */
+	struct se_wwn tport_wwn;
+};
+
+/*
+ * As per request from MST, keep TCM_VHOST related ioctl defines out of
+ * linux/vhost.h (user-space) for now..
+ */
+
+#include <linux/vhost.h>
+
+/*
+ * Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
+ *
+ * ABI Rev 0: July 2012 version starting point for v3.6-rc merge candidate +
+ *            RFC-v2 vhost-scsi userspace.  Add GET_ABI_VERSION ioctl usage
+ */
+
+#define VHOST_SCSI_ABI_VERSION	0
+
+struct vhost_scsi_target {
+	int abi_version;
+	char vhost_wwpn[TRANSPORT_IQN_LEN];
+	unsigned short vhost_tpgt;
+	unsigned short reserved;
+};
+
+/* VHOST_SCSI specific defines */
+#define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
+#define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target)
+/* Changing this breaks userspace. */
+#define VHOST_SCSI_GET_ABI_VERSION _IOW(VHOST_VIRTIO, 0x42, int)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index ef82a0d1848..99ac2cb08b4 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -636,8 +636,8 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
 
 static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp)
 {
-	struct file *eventfp, *filep = NULL,
-		    *pollstart = NULL, *pollstop = NULL;
+	struct file *eventfp, *filep = NULL;
+	bool pollstart = false, pollstop = false;
 	struct eventfd_ctx *ctx = NULL;
 	u32 __user *idxp = argp;
 	struct vhost_virtqueue *vq;
@@ -763,8 +763,8 @@ static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp)
 			break;
 		}
 		if (eventfp != vq->kick) {
-			pollstop = filep = vq->kick;
-			pollstart = vq->kick = eventfp;
+			pollstop = (filep = vq->kick) != NULL;
+			pollstart = (vq->kick = eventfp) != NULL;
 		} else
 			filep = eventfp;
 		break;
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0217f7415ef..20c33c42600 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -979,18 +979,6 @@ config FB_PVR2
 	  (<file:drivers/video/pvr2fb.c>). Please see the file
 	  <file:Documentation/fb/pvr2fb.txt>.
 
-config FB_EPSON1355
-	bool "Epson 1355 framebuffer support"
-	depends on (FB = y) && ARCH_CEIVA
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
-	help
-	  Build in support for the SED1355 Epson Research Embedded RAMDAC
-	  LCD/CRT Controller (since redesignated as the S1D13505) as a
-	  framebuffer.  Product specs at
-	  <http://vdc.epson.com/>.
-
 config FB_S1D13XXX
 	tristate "Epson S1D13XXX framebuffer support"
 	depends on FB
@@ -1788,7 +1776,7 @@ config FB_AU1200
 
 config FB_VT8500
 	bool "VT8500 LCD Driver"
-	depends on (FB = y) && ARM && ARCH_VT8500 && VTWM_VERSION_VT8500
+	depends on (FB = y) && ARM && ARCH_VT8500
 	select FB_WMT_GE_ROPS
 	select FB_SYS_IMAGEBLIT
 	help
@@ -1797,11 +1785,11 @@ config FB_VT8500
 
 config FB_WM8505
 	bool "WM8505 frame buffer support"
-	depends on (FB = y) && ARM && ARCH_VT8500 && VTWM_VERSION_WM8505
+	depends on (FB = y) && ARM && ARCH_VT8500
 	select FB_WMT_GE_ROPS
 	select FB_SYS_IMAGEBLIT
 	help
-	  This is the framebuffer driver for WonderMedia WM8505
+	  This is the framebuffer driver for WonderMedia WM8505/WM8650
 	  integrated LCD controller.
 
 source "drivers/video/geode/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ee8dafb69e3..194035986af 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -94,7 +94,6 @@ obj-$(CONFIG_FB_G364)             += g364fb.o
 obj-$(CONFIG_FB_EP93XX)		  += ep93xx-fb.o
 obj-$(CONFIG_FB_SA1100)           += sa1100fb.o
 obj-$(CONFIG_FB_HIT)              += hitfb.o
-obj-$(CONFIG_FB_EPSON1355)	  += epson1355fb.o
 obj-$(CONFIG_FB_ATMEL)		  += atmel_lcdfb.o
 obj-$(CONFIG_FB_PVR2)             += pvr2fb.o
 obj-$(CONFIG_FB_VOODOO1)          += sstfb.o
diff --git a/drivers/video/auo_k190x.c b/drivers/video/auo_k190x.c
index 77da6a2f43d..c03ecdd31e4 100644
--- a/drivers/video/auo_k190x.c
+++ b/drivers/video/auo_k190x.c
@@ -987,7 +987,6 @@ err_regfb:
 	fb_dealloc_cmap(&info->cmap);
 err_cmap:
 	fb_deferred_io_cleanup(info);
-	kfree(info->fbdefio);
 err_defio:
 	vfree((void *)info->screen_base);
 err_irq:
@@ -1022,7 +1021,6 @@ int  __devexit auok190x_common_remove(struct platform_device *pdev)
 	fb_dealloc_cmap(&info->cmap);
 
 	fb_deferred_io_cleanup(info);
-	kfree(info->fbdefio);
 
 	vfree((void *)info->screen_base);
 
diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index f75da8758ad..f49181c7311 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -228,7 +228,6 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
 	data->port = pdata->flags;
 	if (data->port < 0) {
 		dev_err(&pdev->dev, "wrong platform data is assigned");
-		kfree(data);
 		return -EINVAL;
 	}
 
diff --git a/drivers/video/backlight/omap1_bl.c b/drivers/video/backlight/omap1_bl.c
index bfdc5fbeaa1..9a046a4c98f 100644
--- a/drivers/video/backlight/omap1_bl.c
+++ b/drivers/video/backlight/omap1_bl.c
@@ -27,10 +27,10 @@
 #include <linux/fb.h>
 #include <linux/backlight.h>
 #include <linux/slab.h>
+#include <linux/platform_data/omap1_bl.h>
 
 #include <mach/hardware.h>
-#include <plat/board.h>
-#include <plat/mux.h>
+#include <mach/mux.h>
 
 #define OMAPBL_MAX_INTENSITY		0xff
 
diff --git a/drivers/video/console/bitblit.c b/drivers/video/console/bitblit.c
index 28b1a834906..61b182bf32a 100644
--- a/drivers/video/console/bitblit.c
+++ b/drivers/video/console/bitblit.c
@@ -162,7 +162,7 @@ static void bit_putcs(struct vc_data *vc, struct fb_info *info,
 	image.depth = 1;
 
 	if (attribute) {
-		buf = kmalloc(cellsize, GFP_KERNEL);
+		buf = kmalloc(cellsize, GFP_ATOMIC);
 		if (!buf)
 			return;
 	}
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 2e471c22abf..fdefa8fd72c 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -372,8 +372,15 @@ static void fb_flashcursor(struct work_struct *work)
 	struct vc_data *vc = NULL;
 	int c;
 	int mode;
+	int ret;
+
+	/* FIXME: we should sort out the unbind locking instead */
+	/* instead we just fail to flash the cursor if we can't get
+	 * the lock instead of blocking fbcon deinit */
+	ret = console_trylock();
+	if (ret == 0)
+		return;
 
-	console_lock();
 	if (ops && ops->currcon != -1)
 		vc = vc_cons[ops->currcon].d;
 
@@ -442,7 +449,7 @@ static int __init fb_console_setup(char *this_opt)
 
 	while ((options = strsep(&this_opt, ",")) != NULL) {
 		if (!strncmp(options, "font:", 5))
-			strcpy(fontname, options + 5);
+			strlcpy(fontname, options + 5, sizeof(fontname));
 		
 		if (!strncmp(options, "scrollback:", 11)) {
 			options += 11;
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 7ae9d53f2bf..113d43a16f5 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -131,7 +131,7 @@
 #define UPPER_MARGIN	32
 #define LOWER_MARGIN	32
 
-static resource_size_t da8xx_fb_reg_base;
+static void __iomem *da8xx_fb_reg_base;
 static struct resource *lcdc_regs;
 static unsigned int lcd_revision;
 static irq_handler_t lcdc_irq_handler;
@@ -951,7 +951,7 @@ static int __devexit fb_remove(struct platform_device *dev)
 		clk_disable(par->lcdc_clk);
 		clk_put(par->lcdc_clk);
 		framebuffer_release(info);
-		iounmap((void __iomem *)da8xx_fb_reg_base);
+		iounmap(da8xx_fb_reg_base);
 		release_mem_region(lcdc_regs->start, resource_size(lcdc_regs));
 
 	}
@@ -1171,7 +1171,7 @@ static int __devinit fb_probe(struct platform_device *device)
 	if (!lcdc_regs)
 		return -EBUSY;
 
-	da8xx_fb_reg_base = (resource_size_t)ioremap(lcdc_regs->start, len);
+	da8xx_fb_reg_base = ioremap(lcdc_regs->start, len);
 	if (!da8xx_fb_reg_base) {
 		ret = -EBUSY;
 		goto err_request_mem;
@@ -1392,7 +1392,7 @@ err_clk_put:
 	clk_put(fb_clk);
 
 err_ioremap:
-	iounmap((void __iomem *)da8xx_fb_reg_base);
+	iounmap(da8xx_fb_reg_base);
 
 err_request_mem:
 	release_mem_region(lcdc_regs->start, len);
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index b4a632ada40..932abaa58a8 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -553,7 +553,9 @@ static int __init efifb_init(void)
 	int ret;
 	char *option = NULL;
 
-	dmi_check_system(dmi_system_table);
+	if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
+	    !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
+		dmi_check_system(dmi_system_table);
 
 	if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
 		return -ENODEV;
diff --git a/drivers/video/ep93xx-fb.c b/drivers/video/ep93xx-fb.c
index 345d9623097..f2c092da84b 100644
--- a/drivers/video/ep93xx-fb.c
+++ b/drivers/video/ep93xx-fb.c
@@ -24,7 +24,7 @@
 #include <linux/clk.h>
 #include <linux/fb.h>
 
-#include <mach/fb.h>
+#include <linux/platform_data/video-ep93xx.h>
 
 /* Vertical Frame Timing Registers */
 #define EP93XXFB_VLINES_TOTAL			0x0000	/* SW locked */
diff --git a/drivers/video/epson1355fb.c b/drivers/video/epson1355fb.c
deleted file mode 100644
index 68b9b511ce8..00000000000
--- a/drivers/video/epson1355fb.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
- * linux/drivers/video/epson1355fb.c -- Epson S1D13505 frame buffer for 2.5.
- *
- * Epson Research S1D13505 Embedded RAMDAC LCD/CRT Controller
- *   (previously known as SED1355)
- *
- * Cf. http://vdc.epson.com/
- *
- *
- * Copyright (C) Hewlett-Packard Company.  All rights reserved.
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- *
- * Adapted from:
- *
- *  linux/drivers/video/skeletonfb.c
- *  Modified to new api Jan 2001 by James Simmons (jsimmons@infradead.org)
- *  Created 28 Dec 1997 by Geert Uytterhoeven
- *
- *  linux/drivers/video/epson1355fb.c (2.4 driver)
- *  Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- *
- *
- * Noteworthy Issues
- * -----------------
- *
- * This driver is complicated by the fact that this is a 16-bit chip
- * and, on at least one platform (ceiva), we can only do 16-bit reads
- * and writes to the framebuffer.  We hide this from user space
- * except in the case of mmap().
- *
- *
- * To Do
- * -----
- *
- * - Test 8-bit pseudocolor mode
- * - Allow setting bpp, virtual resolution
- * - Implement horizontal panning
- * - (maybe) Implement hardware cursor
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-
-#include <asm/types.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-
-#include <video/epson1355.h>
-
-struct epson1355_par {
-	unsigned long reg_addr;
-	u32 pseudo_palette[16];
-};
-
-/* ------------------------------------------------------------------------- */
-
-#if defined(CONFIG_ARM)
-
-# ifdef CONFIG_ARCH_CEIVA
-#  include <mach/hardware.h>
-#  define EPSON1355FB_BASE_PHYS	(CEIVA_PHYS_SED1355)
-# endif
-
-static inline u8 epson1355_read_reg(struct epson1355_par *par, int index)
-{
-	return __raw_readb(par->reg_addr + index);
-}
-
-static inline void epson1355_write_reg(struct epson1355_par *par, u8 data, int index)
-{
-	__raw_writeb(data, par->reg_addr + index);
-}
-
-#else
-# error "no architecture-specific epson1355_{read,write}_reg"
-#endif
-
-#ifndef EPSON1355FB_BASE_PHYS
-# error  "EPSON1355FB_BASE_PHYS is not defined"
-#endif
-
-#define EPSON1355FB_REGS_OFS	(0)
-#define EPSON1355FB_REGS_PHYS	(EPSON1355FB_BASE_PHYS + EPSON1355FB_REGS_OFS)
-#define EPSON1355FB_REGS_LEN	(64)
-
-#define EPSON1355FB_FB_OFS	(0x00200000)
-#define EPSON1355FB_FB_PHYS	(EPSON1355FB_BASE_PHYS + EPSON1355FB_FB_OFS)
-#define EPSON1355FB_FB_LEN	(2 * 1024 * 1024)
-
-/* ------------------------------------------------------------------------- */
-
-static inline u16 epson1355_read_reg16(struct epson1355_par *par, int index)
-{
-	u8 lo = epson1355_read_reg(par, index);
-	u8 hi = epson1355_read_reg(par, index + 1);
-
-	return (hi << 8) | lo;
-}
-
-static inline void epson1355_write_reg16(struct epson1355_par *par, u16 data, int index)
-{
-	u8 lo = data & 0xff;
-	u8 hi = (data >> 8) & 0xff;
-
-	epson1355_write_reg(par, lo, index);
-	epson1355_write_reg(par, hi, index + 1);
-}
-
-static inline u32 epson1355_read_reg20(struct epson1355_par *par, int index)
-{
-	u8 b0 = epson1355_read_reg(par, index);
-	u8 b1 = epson1355_read_reg(par, index + 1);
-	u8 b2 = epson1355_read_reg(par, index + 2);
-
-	return (b2 & 0x0f) << 16 | (b1 << 8) | b0;
-}
-
-static inline void epson1355_write_reg20(struct epson1355_par *par, u32 data, int index)
-{
-	u8 b0 = data & 0xff;
-	u8 b1 = (data >> 8) & 0xff;
-	u8 b2 = (data >> 16) & 0x0f;
-
-	epson1355_write_reg(par, b0, index);
-	epson1355_write_reg(par, b1, index + 1);
-	epson1355_write_reg(par, b2, index + 2);
-}
-
-/* ------------------------------------------------------------------------- */
-
-static void set_lut(struct epson1355_par *par, u8 index, u8 r, u8 g, u8 b)
-{
-	epson1355_write_reg(par, index, REG_LUT_ADDR);
-	epson1355_write_reg(par, r, REG_LUT_DATA);
-	epson1355_write_reg(par, g, REG_LUT_DATA);
-	epson1355_write_reg(par, b, REG_LUT_DATA);
-}
-
-
-/**
- *  	epson1355fb_setcolreg - sets a color register.
- *      @regno: Which register in the CLUT we are programming
- *      @red: The red value which can be up to 16 bits wide
- *	@green: The green value which can be up to 16 bits wide
- *	@blue:  The blue value which can be up to 16 bits wide.
- *	@transp: If supported the alpha value which can be up to 16 bits wide.
- *      @info: frame buffer info structure
- *
- *	Returns negative errno on error, or zero on success.
- */
-static int epson1355fb_setcolreg(unsigned regno, unsigned r, unsigned g,
-				 unsigned b, unsigned transp,
-				 struct fb_info *info)
-{
-	struct epson1355_par *par = info->par;
-
-	if (info->var.grayscale)
-		r = g = b = (19595 * r + 38470 * g + 7471 * b) >> 16;
-
-	switch (info->fix.visual) {
-	case FB_VISUAL_TRUECOLOR:
-		if (regno >= 16)
-			return -EINVAL;
-
-		((u32 *) info->pseudo_palette)[regno] =
-		    (r & 0xf800) | (g & 0xfc00) >> 5 | (b & 0xf800) >> 11;
-
-		break;
-	case FB_VISUAL_PSEUDOCOLOR:
-		if (regno >= 256)
-			return -EINVAL;
-
-		set_lut(par, regno, r >> 8, g >> 8, b >> 8);
-
-		break;
-	default:
-		return -ENOSYS;
-	}
-	return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/**
- *      epson1355fb_pan_display - Pans the display.
- *      @var: frame buffer variable screen structure
- *      @info: frame buffer structure that represents a single frame buffer
- *
- *	Pan (or wrap, depending on the `vmode' field) the display using the
- *  	`xoffset' and `yoffset' fields of the `var' structure.
- *  	If the values don't fit, return -EINVAL.
- *
- *      Returns negative errno on error, or zero on success.
- */
-static int epson1355fb_pan_display(struct fb_var_screeninfo *var,
-				   struct fb_info *info)
-{
-	struct epson1355_par *par = info->par;
-	u32 start;
-
-	if (var->xoffset != 0)	/* not yet ... */
-		return -EINVAL;
-
-	if (var->yoffset + info->var.yres > info->var.yres_virtual)
-		return -EINVAL;
-
-	start = (info->fix.line_length >> 1) * var->yoffset;
-
-	epson1355_write_reg20(par, start, REG_SCRN1_DISP_START_ADDR0);
-
-	return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-static void lcd_enable(struct epson1355_par *par, int enable)
-{
-	u8 mode = epson1355_read_reg(par, REG_DISPLAY_MODE);
-
-	if (enable)
-		mode |= 1;
-	else
-		mode &= ~1;
-
-	epson1355_write_reg(par, mode, REG_DISPLAY_MODE);
-}
-
-#if defined(CONFIG_ARCH_CEIVA)
-static void backlight_enable(int enable)
-{
-	/* ### this should be protected by a spinlock ... */
-	u8 pddr = clps_readb(PDDR);
-	if (enable)
-		pddr |= (1 << 5);
-	else
-		pddr &= ~(1 << 5);
-	clps_writeb(pddr, PDDR);
-}
-#else
-static void backlight_enable(int enable)
-{
-}
-#endif
-
-
-/**
- *      epson1355fb_blank - blanks the display.
- *      @blank_mode: the blank mode we want.
- *      @info: frame buffer structure that represents a single frame buffer
- *
- *      Blank the screen if blank_mode != 0, else unblank. Return 0 if
- *      blanking succeeded, != 0 if un-/blanking failed due to e.g. a
- *      video mode which doesn't support it. Implements VESA suspend
- *      and powerdown modes on hardware that supports disabling hsync/vsync:
- *      blank_mode == 2: suspend vsync
- *      blank_mode == 3: suspend hsync
- *      blank_mode == 4: powerdown
- *
- *      Returns negative errno on error, or zero on success.
- *
- */
-static int epson1355fb_blank(int blank_mode, struct fb_info *info)
-{
-	struct epson1355_par *par = info->par;
-
-	switch (blank_mode) {
-	case FB_BLANK_UNBLANK:
-	case FB_BLANK_NORMAL:
-		lcd_enable(par, 1);
-		backlight_enable(1);
-		break;
-	case FB_BLANK_VSYNC_SUSPEND:
-	case FB_BLANK_HSYNC_SUSPEND:
-		backlight_enable(0);
-		break;
-	case FB_BLANK_POWERDOWN:
-		backlight_enable(0);
-		lcd_enable(par, 0);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/* let fbcon do a soft blank for us */
-	return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/*
- * We can't use the cfb generic routines, as we have to limit
- * ourselves to 16-bit or 8-bit loads and stores to this 16-bit
- * chip.
- */
-
-static inline void epson1355fb_fb_writel(unsigned long v, unsigned long *a)
-{
-	u16 *p = (u16 *) a;
-	u16 l = v & 0xffff;
-	u16 h = v >> 16;
-
-	fb_writew(l, p);
-	fb_writew(h, p + 1);
-}
-
-static inline unsigned long epson1355fb_fb_readl(const unsigned long *a)
-{
-	const u16 *p = (u16 *) a;
-	u16 l = fb_readw(p);
-	u16 h = fb_readw(p + 1);
-
-	return (h << 16) | l;
-}
-
-#define FB_READL epson1355fb_fb_readl
-#define FB_WRITEL epson1355fb_fb_writel
-
-/* ------------------------------------------------------------------------- */
-
-static inline unsigned long copy_from_user16(void *to, const void *from,
-					     unsigned long n)
-{
-	u16 *dst = (u16 *) to;
-	u16 *src = (u16 *) from;
-
-	if (!access_ok(VERIFY_READ, from, n))
-		return n;
-
-	while (n > 1) {
-		u16 v;
-		if (__get_user(v, src))
-			return n;
-
-		fb_writew(v, dst);
-
-		src++, dst++;
-		n -= 2;
-	}
-
-	if (n) {
-		u8 v;
-
-		if (__get_user(v, ((u8 *) src)))
-			return n;
-
-		fb_writeb(v, dst);
-	}
-	return 0;
-}
-
-static inline unsigned long copy_to_user16(void *to, const void *from,
-					   unsigned long n)
-{
-	u16 *dst = (u16 *) to;
-	u16 *src = (u16 *) from;
-
-	if (!access_ok(VERIFY_WRITE, to, n))
-		return n;
-
-	while (n > 1) {
-		u16 v = fb_readw(src);
-
-		if (__put_user(v, dst))
-			return n;
-
-		src++, dst++;
-		n -= 2;
-	}
-
-	if (n) {
-		u8 v = fb_readb(src);
-
-		if (__put_user(v, ((u8 *) dst)))
-			return n;
-	}
-	return 0;
-}
-
-
-static ssize_t
-epson1355fb_read(struct fb_info *info, char *buf, size_t count, loff_t * ppos)
-{
-	unsigned long p = *ppos;
-
-	if (p >= info->fix.smem_len)
-		return 0;
-	if (count >= info->fix.smem_len)
-		count = info->fix.smem_len;
-	if (count + p > info->fix.smem_len)
-		count = info->fix.smem_len - p;
-
-	if (count) {
-		char *base_addr;
-
-		base_addr = info->screen_base;
-		count -= copy_to_user16(buf, base_addr + p, count);
-		if (!count)
-			return -EFAULT;
-		*ppos += count;
-	}
-	return count;
-}
-
-static ssize_t
-epson1355fb_write(struct fb_info *info, const char *buf,
-		  size_t count, loff_t * ppos)
-{
-	unsigned long p = *ppos;
-	int err;
-
-	/* from fbmem.c except for our own copy_*_user */
-	if (p > info->fix.smem_len)
-		return -ENOSPC;
-	if (count >= info->fix.smem_len)
-		count = info->fix.smem_len;
-	err = 0;
-	if (count + p > info->fix.smem_len) {
-		count = info->fix.smem_len - p;
-		err = -ENOSPC;
-	}
-
-	if (count) {
-		char *base_addr;
-
-		base_addr = info->screen_base;
-		count -= copy_from_user16(base_addr + p, buf, count);
-		*ppos += count;
-		err = -EFAULT;
-	}
-	if (count)
-		return count;
-	return err;
-}
-
-/* ------------------------------------------------------------------------- */
-
-static struct fb_ops epson1355fb_fbops = {
-	.owner 		= THIS_MODULE,
-	.fb_setcolreg 	= epson1355fb_setcolreg,
-	.fb_pan_display = epson1355fb_pan_display,
-	.fb_blank 	= epson1355fb_blank,
-	.fb_fillrect 	= cfb_fillrect,
-	.fb_copyarea 	= cfb_copyarea,
-	.fb_imageblit 	= cfb_imageblit,
-	.fb_read 	= epson1355fb_read,
-	.fb_write 	= epson1355fb_write,
-};
-
-/* ------------------------------------------------------------------------- */
-
-static __init unsigned int get_fb_size(struct fb_info *info)
-{
-	unsigned int size = 2 * 1024 * 1024;
-	char *p = info->screen_base;
-
-	/* the 512k framebuffer is aliased at start + 0x80000 * n */
-	fb_writeb(1, p);
-	fb_writeb(0, p + 0x80000);
-	if (!fb_readb(p))
-		size = 512 * 1024;
-
-	fb_writeb(0, p);
-
-	return size;
-}
-
-static int epson1355_width_tab[2][4] __devinitdata =
-    { {4, 8, 16, -1}, {9, 12, 16, -1} };
-static int epson1355_bpp_tab[8] __devinitdata = { 1, 2, 4, 8, 15, 16 };
-
-static void __devinit fetch_hw_state(struct fb_info *info, struct epson1355_par *par)
-{
-	struct fb_var_screeninfo *var = &info->var;
-	struct fb_fix_screeninfo *fix = &info->fix;
-	u8 panel, display;
-	u16 offset;
-	u32 xres, yres;
-	u32 xres_virtual, yres_virtual;
-	int bpp, lcd_bpp;
-	int is_color, is_dual, is_tft;
-	int lcd_enabled, crt_enabled;
-
-	fix->type = FB_TYPE_PACKED_PIXELS;
-
-	display = epson1355_read_reg(par, REG_DISPLAY_MODE);
-	bpp = epson1355_bpp_tab[(display >> 2) & 7];
-
-	switch (bpp) {
-	case 8:
-		fix->visual = FB_VISUAL_PSEUDOCOLOR;
-		var->bits_per_pixel = 8;
-		var->red.offset = var->green.offset = var->blue.offset = 0;
-		var->red.length = var->green.length = var->blue.length = 8;
-		break;
-	case 16:
-		/* 5-6-5 RGB */
-		fix->visual = FB_VISUAL_TRUECOLOR;
-		var->bits_per_pixel = 16;
-		var->red.offset = 11;
-		var->red.length = 5;
-		var->green.offset = 5;
-		var->green.length = 6;
-		var->blue.offset = 0;
-		var->blue.length = 5;
-		break;
-	default:
-		BUG();
-	}
-	fb_alloc_cmap(&(info->cmap), 256, 0);
-
-	panel = epson1355_read_reg(par, REG_PANEL_TYPE);
-	is_color = (panel & 0x04) != 0;
-	is_dual = (panel & 0x02) != 0;
-	is_tft = (panel & 0x01) != 0;
-	crt_enabled = (display & 0x02) != 0;
-	lcd_enabled = (display & 0x01) != 0;
-	lcd_bpp = epson1355_width_tab[is_tft][(panel >> 4) & 3];
-
-	xres = (epson1355_read_reg(par, REG_HORZ_DISP_WIDTH) + 1) * 8;
-	yres = (epson1355_read_reg16(par, REG_VERT_DISP_HEIGHT0) + 1) *
-	    ((is_dual && !crt_enabled) ? 2 : 1);
-	offset = epson1355_read_reg16(par, REG_MEM_ADDR_OFFSET0) & 0x7ff;
-	xres_virtual = offset * 16 / bpp;
-	yres_virtual = fix->smem_len / (offset * 2);
-
-	var->xres = xres;
-	var->yres = yres;
-	var->xres_virtual = xres_virtual;
-	var->yres_virtual = yres_virtual;
-	var->xoffset = var->yoffset = 0;
-
-	fix->line_length = offset * 2;
-
-	fix->xpanstep = 0;	/* no pan yet */
-	fix->ypanstep = 1;
-	fix->ywrapstep = 0;
-	fix->accel = FB_ACCEL_NONE;
-
-	var->grayscale = !is_color;
-
-#ifdef DEBUG
-	printk(KERN_INFO
-	       "epson1355fb: xres=%d, yres=%d, "
-	       "is_color=%d, is_dual=%d, is_tft=%d\n",
-	       xres, yres, is_color, is_dual, is_tft);
-	printk(KERN_INFO
-	       "epson1355fb: bpp=%d, lcd_bpp=%d, "
-	       "crt_enabled=%d, lcd_enabled=%d\n",
-	       bpp, lcd_bpp, crt_enabled, lcd_enabled);
-#endif
-}
-
-
-static void clearfb16(struct fb_info *info)
-{
-	u16 *dst = (u16 *) info->screen_base;
-	unsigned long n = info->fix.smem_len;
-
-	while (n > 1) {
-		fb_writew(0, dst);
-		dst++, n -= 2;
-	}
-
-	if (n)
-		fb_writeb(0, dst);
-}
-
-static int epson1355fb_remove(struct platform_device *dev)
-{
-	struct fb_info *info = platform_get_drvdata(dev);
-	struct epson1355_par *par = info->par;
-
-	backlight_enable(0);
-	if (par) {
-		lcd_enable(par, 0);
-		if (par && par->reg_addr)
-			iounmap((void *) par->reg_addr);
-	}
-
-	if (info) {
-		fb_dealloc_cmap(&info->cmap);
-		if (info->screen_base)
-			iounmap(info->screen_base);
-		framebuffer_release(info);
-	}
-	release_mem_region(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN);
-	release_mem_region(EPSON1355FB_REGS_PHYS, EPSON1355FB_REGS_LEN);
-	return 0;
-}
-
-static int __devinit epson1355fb_probe(struct platform_device *dev)
-{
-	struct epson1355_par *default_par;
-	struct fb_info *info;
-	u8 revision;
-	int rc = 0;
-
-	if (!request_mem_region(EPSON1355FB_REGS_PHYS, EPSON1355FB_REGS_LEN, "S1D13505 registers")) {
-		printk(KERN_ERR "epson1355fb: unable to reserve "
-		       "registers at 0x%0x\n", EPSON1355FB_REGS_PHYS);
-		rc = -EBUSY;
-		goto bail;
-	}
-
-	if (!request_mem_region(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN,
-				"S1D13505 framebuffer")) {
-		printk(KERN_ERR "epson1355fb: unable to reserve "
-		       "framebuffer at 0x%0x\n", EPSON1355FB_FB_PHYS);
-		rc = -EBUSY;
-		goto bail;
-	}
-
-	info = framebuffer_alloc(sizeof(struct epson1355_par), &dev->dev);
-	if (!info) {
-		rc = -ENOMEM;
-		goto bail;
-	}
-
-	default_par = info->par;
-	default_par->reg_addr = (unsigned long) ioremap(EPSON1355FB_REGS_PHYS, EPSON1355FB_REGS_LEN);
-	if (!default_par->reg_addr) {
-		printk(KERN_ERR "epson1355fb: unable to map registers\n");
-		rc = -ENOMEM;
-		goto bail;
-	}
-	info->pseudo_palette = default_par->pseudo_palette;
-
-	info->screen_base = ioremap(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN);
-	if (!info->screen_base) {
-		printk(KERN_ERR "epson1355fb: unable to map framebuffer\n");
-		rc = -ENOMEM;
-		goto bail;
-	}
-
-	revision = epson1355_read_reg(default_par, REG_REVISION_CODE);
-	if ((revision >> 2) != 3) {
-		printk(KERN_INFO "epson1355fb: epson1355 not found\n");
-		rc = -ENODEV;
-		goto bail;
-	}
-
-	info->fix.mmio_start = EPSON1355FB_REGS_PHYS;
-	info->fix.mmio_len = EPSON1355FB_REGS_LEN;
-	info->fix.smem_start = EPSON1355FB_FB_PHYS;
-	info->fix.smem_len = get_fb_size(info);
-
-	printk(KERN_INFO "epson1355fb: regs mapped at 0x%lx, fb %d KiB mapped at 0x%p\n",
-	       default_par->reg_addr, info->fix.smem_len / 1024, info->screen_base);
-
-	strcpy(info->fix.id, "S1D13505");
-	info->par = default_par;
-	info->fbops = &epson1355fb_fbops;
-	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
-
-	/* we expect the boot loader to have initialized the chip
-	   with appropriate parameters from which we can determinte
-	   the flavor of lcd panel attached */
-	fetch_hw_state(info, default_par);
-
-	/* turn this puppy on ... */
-	clearfb16(info);
-	backlight_enable(1);
-	lcd_enable(default_par, 1);
-
-	if (register_framebuffer(info) < 0) {
-		rc = -EINVAL;
-		goto bail;
-	}
-	/*
-	 * Our driver data.
-	 */
-	platform_set_drvdata(dev, info);
-
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
-
-	return 0;
-
-      bail:
-	epson1355fb_remove(dev);
-	return rc;
-}
-
-static struct platform_driver epson1355fb_driver = {
-	.probe	= epson1355fb_probe,
-	.remove	= epson1355fb_remove,
-	.driver	= {
-		.name	= "epson1355fb",
-	},
-};
-
-static struct platform_device *epson1355fb_device;
-
-int __init epson1355fb_init(void)
-{
-	int ret = 0;
-
-	if (fb_get_options("epson1355fb", NULL))
-		return -ENODEV;
-
-	ret = platform_driver_register(&epson1355fb_driver);
-
-	if (!ret) {
-		epson1355fb_device = platform_device_alloc("epson1355fb", 0);
-
-		if (epson1355fb_device)
-			ret = platform_device_add(epson1355fb_device);
-		else
-			ret = -ENOMEM;
-
-		if (ret) {
-			platform_device_put(epson1355fb_device);
-			platform_driver_unregister(&epson1355fb_driver);
-		}
-	}
-
-	return ret;
-}
-
-module_init(epson1355fb_init);
-	
-#ifdef MODULE
-static void __exit epson1355fb_exit(void)
-{
-	platform_device_unregister(epson1355fb_device);
-	platform_driver_unregister(&epson1355fb_driver);
-}
-
-/* ------------------------------------------------------------------------- */
-
-module_exit(epson1355fb_exit);
-#endif
-
-MODULE_AUTHOR("Christopher Hoover <ch@hpl.hp.com>");
-MODULE_DESCRIPTION("Framebuffer driver for Epson S1D13505");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index 4bc2b8a5dd8..663c308d0e7 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -461,7 +461,7 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 done:
 	platform_set_drvdata(pdev, dsim);
 
-	dev_dbg(&pdev->dev, "%s() completed sucessfuly (%s mode)\n", __func__,
+	dev_dbg(&pdev->dev, "%s() completed successfully (%s mode)\n", __func__,
 		dsim_config->e_interface == DSIM_COMMAND ? "CPU" : "RGB");
 
 	return 0;
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index caad3689b4e..53ffdfc82a7 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -32,7 +32,7 @@
 #include <linux/io.h>
 #include <linux/math64.h>
 
-#include <mach/imxfb.h>
+#include <linux/platform_data/video-imxfb.h>
 #include <mach/hardware.h>
 
 /*
diff --git a/drivers/video/mb862xx/mb862xxfbdrv.c b/drivers/video/mb862xx/mb862xxfbdrv.c
index 00ce1f34b49..57d940be5f3 100644
--- a/drivers/video/mb862xx/mb862xxfbdrv.c
+++ b/drivers/video/mb862xx/mb862xxfbdrv.c
@@ -328,6 +328,8 @@ static int mb862xxfb_ioctl(struct fb_info *fbi, unsigned int cmd,
 	case MB862XX_L1_SET_CFG:
 		if (copy_from_user(l1_cfg, argp, sizeof(*l1_cfg)))
 			return -EFAULT;
+		if (l1_cfg->dh == 0 || l1_cfg->dw == 0)
+			return -EINVAL;
 		if ((l1_cfg->sw >= l1_cfg->dw) && (l1_cfg->sh >= l1_cfg->dh)) {
 			/* downscaling */
 			outreg(cap, GC_CAP_CSC,
diff --git a/drivers/video/msm/mddi.c b/drivers/video/msm/mddi.c
index b061d709bc4..bf73f048006 100644
--- a/drivers/video/msm/mddi.c
+++ b/drivers/video/msm/mddi.c
@@ -29,7 +29,7 @@
 #include <mach/msm_iomap.h>
 #include <mach/irqs.h>
 #include <mach/board.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 #include "mddi_hw.h"
 
 #define FLAG_DISABLE_HIBERNATION 0x0001
diff --git a/drivers/video/msm/mddi_client_dummy.c b/drivers/video/msm/mddi_client_dummy.c
index d2a091cebe2..f1b0dfcc971 100644
--- a/drivers/video/msm/mddi_client_dummy.c
+++ b/drivers/video/msm/mddi_client_dummy.c
@@ -20,7 +20,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 
 struct panel_info {
 	struct platform_device pdev;
diff --git a/drivers/video/msm/mddi_client_nt35399.c b/drivers/video/msm/mddi_client_nt35399.c
index 7fcd67e132b..d7a5bf84fb2 100644
--- a/drivers/video/msm/mddi_client_nt35399.c
+++ b/drivers/video/msm/mddi_client_nt35399.c
@@ -22,7 +22,7 @@
 #include <linux/sched.h>
 #include <linux/gpio.h>
 #include <linux/slab.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 
 static DECLARE_WAIT_QUEUE_HEAD(nt35399_vsync_wait);
 
diff --git a/drivers/video/msm/mddi_client_toshiba.c b/drivers/video/msm/mddi_client_toshiba.c
index 053eb687733..061d7dfebbf 100644
--- a/drivers/video/msm/mddi_client_toshiba.c
+++ b/drivers/video/msm/mddi_client_toshiba.c
@@ -22,7 +22,7 @@
 #include <linux/gpio.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 
 
 #define LCD_CONTROL_BLOCK_BASE 0x110000
diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c
index cb2ddf164c9..2e0f3bab611 100644
--- a/drivers/video/msm/mdp.c
+++ b/drivers/video/msm/mdp.c
@@ -26,7 +26,7 @@
 #include <linux/slab.h>
 
 #include <mach/msm_iomap.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 #include <linux/platform_device.h>
 #include <linux/export.h>
 
@@ -257,19 +257,17 @@ int get_img(struct mdp_img *img, struct fb_info *info,
 	    unsigned long *start, unsigned long *len,
 	    struct file **filep)
 {
-	int put_needed, ret = 0;
-	struct file *file;
-
-	file = fget_light(img->memory_id, &put_needed);
-	if (file == NULL)
+	int ret = 0;
+	struct fd f = fdget(img->memory_id);
+	if (f.file == NULL)
 		return -1;
 
-	if (MAJOR(file->f_dentry->d_inode->i_rdev) == FB_MAJOR) {
+	if (MAJOR(f.file->f_dentry->d_inode->i_rdev) == FB_MAJOR) {
 		*start = info->fix.smem_start;
 		*len = info->fix.smem_len;
 	} else
 		ret = -1;
-	fput_light(file, put_needed);
+	fdput(f);
 
 	return ret;
 }
diff --git a/drivers/video/msm/mdp_hw.h b/drivers/video/msm/mdp_hw.h
index d80477415ca..a0bacf581b3 100644
--- a/drivers/video/msm/mdp_hw.h
+++ b/drivers/video/msm/mdp_hw.h
@@ -16,7 +16,7 @@
 #define _MDP_HW_H_
 
 #include <mach/msm_iomap.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 
 struct mdp_info {
 	struct mdp_device mdp_dev;
diff --git a/drivers/video/msm/mdp_ppp.c b/drivers/video/msm/mdp_ppp.c
index 2b6564e8bfe..be6079cdfbb 100644
--- a/drivers/video/msm/mdp_ppp.c
+++ b/drivers/video/msm/mdp_ppp.c
@@ -16,7 +16,7 @@
 #include <linux/file.h>
 #include <linux/delay.h>
 #include <linux/msm_mdp.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 
 #include "mdp_hw.h"
 #include "mdp_scale_tables.h"
diff --git a/drivers/video/msm/msm_fb.c b/drivers/video/msm/msm_fb.c
index c6e3b4fcdd6..ec08a9ec377 100644
--- a/drivers/video/msm/msm_fb.c
+++ b/drivers/video/msm/msm_fb.c
@@ -25,7 +25,7 @@
 #include <linux/msm_mdp.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
-#include <mach/msm_fb.h>
+#include <linux/platform_data/video-msm_fb.h>
 #include <mach/board.h>
 #include <linux/workqueue.h>
 #include <linux/clk.h>
diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index c89f8a8d36d..d7381088a18 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -27,10 +27,10 @@
 #include <linux/clk.h>
 #include <linux/mutex.h>
 
-#include <mach/dma.h>
+#include <linux/platform_data/dma-imx.h>
 #include <mach/hardware.h>
 #include <mach/ipu.h>
-#include <mach/mx3fb.h>
+#include <linux/platform_data/video-mx3fb.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
diff --git a/drivers/video/nuc900fb.c b/drivers/video/nuc900fb.c
index e10f551ade2..93387555337 100644
--- a/drivers/video/nuc900fb.c
+++ b/drivers/video/nuc900fb.c
@@ -38,7 +38,7 @@
 #include <mach/map.h>
 #include <mach/regs-clock.h>
 #include <mach/regs-ldm.h>
-#include <mach/fb.h>
+#include <linux/platform_data/video-nuc900fb.h>
 
 #include "nuc900fb.h"
 
diff --git a/drivers/video/nuc900fb.h b/drivers/video/nuc900fb.h
index bc7c9300f27..9a1ca6dbb6b 100644
--- a/drivers/video/nuc900fb.h
+++ b/drivers/video/nuc900fb.h
@@ -16,7 +16,7 @@
 #define __NUC900FB_H
 
 #include <mach/map.h>
-#include <mach/fb.h>
+#include <linux/platform_data/video-nuc900fb.h>
 
 enum nuc900_lcddrv_type {
 	LCDDRV_NUC910,
diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c
index d3a31132722..ed4cad87fbc 100644
--- a/drivers/video/omap/lcd_ams_delta.c
+++ b/drivers/video/omap/lcd_ams_delta.c
@@ -27,8 +27,7 @@
 #include <linux/lcd.h>
 #include <linux/gpio.h>
 
-#include <plat/board-ams-delta.h>
-#include <mach/hardware.h>
+#include <mach/board-ams-delta.h>
 
 #include "omapfb.h"
 
diff --git a/drivers/video/omap/lcd_mipid.c b/drivers/video/omap/lcd_mipid.c
index e3880c4a0bb..b739600c51a 100644
--- a/drivers/video/omap/lcd_mipid.c
+++ b/drivers/video/omap/lcd_mipid.c
@@ -25,7 +25,7 @@
 #include <linux/spi/spi.h>
 #include <linux/module.h>
 
-#include <plat/lcd_mipid.h>
+#include <linux/platform_data/lcd-mipid.h>
 
 #include "omapfb.h"
 
diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c
index 5914220dfa9..3aa62da8919 100644
--- a/drivers/video/omap/lcd_osk.c
+++ b/drivers/video/omap/lcd_osk.c
@@ -24,7 +24,7 @@
 #include <linux/platform_device.h>
 
 #include <asm/gpio.h>
-#include <plat/mux.h>
+#include <mach/mux.h>
 #include "omapfb.h"
 
 static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 3f5acc7771d..6b5e6e0e202 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -906,7 +906,7 @@ static int taal_probe(struct omap_dss_device *dssdev)
 		r = -ENOMEM;
 		goto err_wq;
 	}
-	INIT_DELAYED_WORK_DEFERRABLE(&td->esd_work, taal_esd_work);
+	INIT_DEFERRABLE_WORK(&td->esd_work, taal_esd_work);
 	INIT_DELAYED_WORK(&td->ulps_work, taal_ulps_work);
 
 	dev_set_drvdata(&dssdev->dev, td);
@@ -962,8 +962,8 @@ static int taal_probe(struct omap_dss_device *dssdev)
 			goto err_irq;
 		}
 
-		INIT_DELAYED_WORK_DEFERRABLE(&td->te_timeout_work,
-					taal_te_timeout_work_callback);
+		INIT_DEFERRABLE_WORK(&td->te_timeout_work,
+				     taal_te_timeout_work_callback);
 
 		dev_dbg(&dssdev->dev, "Using GPIO TE\n");
 	}
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 5b289c5f695..ee9e29639dc 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -37,6 +37,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
+#include <plat/cpu.h>
 #include <plat/clock.h>
 
 #include <video/omapdss.h>
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index b07e8864f82..05ee04667af 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4306,7 +4306,7 @@ static void dsi_framedone_irq_callback(void *data, u32 mask)
 	 * and is sending the data.
 	 */
 
-	__cancel_delayed_work(&dsi->framedone_timeout_work);
+	cancel_delayed_work(&dsi->framedone_timeout_work);
 
 	dsi_handle_framedone(dsidev, 0);
 }
@@ -4863,8 +4863,8 @@ static int __init omap_dsihw_probe(struct platform_device *dsidev)
 	mutex_init(&dsi->lock);
 	sema_init(&dsi->bus_lock, 1);
 
-	INIT_DELAYED_WORK_DEFERRABLE(&dsi->framedone_timeout_work,
-			dsi_framedone_timeout_work_callback);
+	INIT_DEFERRABLE_WORK(&dsi->framedone_timeout_work,
+			     dsi_framedone_timeout_work_callback);
 
 #ifdef DSI_CATCH_MISSING_TE
 	init_timer(&dsi->te_timer);
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 5d31699fbd3..f43bfe17b3b 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -105,6 +105,20 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 
 	sdi_config_lcd_manager(dssdev);
 
+	/*
+	 * LCLK and PCLK divisors are located in shadow registers, and we
+	 * normally write them to DISPC registers when enabling the output.
+	 * However, SDI uses pck-free as source clock for its PLL, and pck-free
+	 * is affected by the divisors. And as we need the PLL before enabling
+	 * the output, we need to write the divisors early.
+	 *
+	 * It seems just writing to the DISPC register is enough, and we don't
+	 * need to care about the shadow register mechanism for pck-free. The
+	 * exact reason for this is unknown.
+	 */
+	dispc_mgr_set_clock_div(dssdev->manager->id,
+			&sdi.mgr_config.clock_info);
+
 	dss_sdi_init(dssdev->phy.sdi.datapairs);
 	r = dss_sdi_enable();
 	if (r)
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 08ec1a7103f..3c39aa8de92 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -31,6 +31,7 @@
 #include <linux/omapfb.h>
 
 #include <video/omapdss.h>
+#include <plat/cpu.h>
 #include <plat/vram.h>
 #include <plat/vrfb.h>
 
@@ -1192,7 +1193,7 @@ static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
 			break;
 
 		if (regno < 16) {
-			u16 pal;
+			u32 pal;
 			pal = ((red >> (16 - var->red.length)) <<
 					var->red.offset) |
 				((green >> (16 - var->green.length)) <<
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 3f902557690..4fa2ad43fd9 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -61,7 +61,7 @@
 #include <asm/irq.h>
 #include <asm/div64.h>
 #include <mach/bitfield.h>
-#include <mach/pxafb.h>
+#include <linux/platform_data/video-pxafb.h>
 
 /*
  * Complain if VAR is out of range.
diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index 8e4a446b5ed..b244f060f15 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -694,6 +694,10 @@ static int __devinit tmiofb_probe(struct platform_device *dev)
 		dev_err(&dev->dev, "NULL platform data!\n");
 		return -EINVAL;
 	}
+	if (ccr == NULL || lcr == NULL || vram == NULL || irq < 0) {
+		dev_err(&dev->dev, "missing resources\n");
+		return -EINVAL;
+	}
 
 	info = framebuffer_alloc(sizeof(struct tmiofb_par), &dev->dev);
 
diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c
index 2a5fe6ede84..9af8da70e78 100644
--- a/drivers/video/vt8500lcdfb.c
+++ b/drivers/video/vt8500lcdfb.c
@@ -30,11 +30,18 @@
 #include <linux/platform_device.h>
 #include <linux/wait.h>
 
-#include <mach/vt8500fb.h>
+#include <linux/platform_data/video-vt8500lcdfb.h>
 
 #include "vt8500lcdfb.h"
 #include "wmt_ge_rops.h"
 
+#ifdef CONFIG_OF
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/memblock.h>
+#endif
+
+
 #define to_vt8500lcd_info(__info) container_of(__info, \
 						struct vt8500lcd_info, fb)
 
@@ -270,15 +277,21 @@ static int __devinit vt8500lcd_probe(struct platform_device *pdev)
 {
 	struct vt8500lcd_info *fbi;
 	struct resource *res;
-	struct vt8500fb_platform_data *pdata = pdev->dev.platform_data;
 	void *addr;
 	int irq, ret;
 
+	struct fb_videomode	of_mode;
+	struct device_node	*np;
+	u32			bpp;
+	dma_addr_t fb_mem_phys;
+	unsigned long fb_mem_len;
+	void *fb_mem_virt;
+
 	ret = -ENOMEM;
 	fbi = NULL;
 
-	fbi = kzalloc(sizeof(struct vt8500lcd_info) + sizeof(u32) * 16,
-							GFP_KERNEL);
+	fbi = devm_kzalloc(&pdev->dev, sizeof(struct vt8500lcd_info)
+			+ sizeof(u32) * 16, GFP_KERNEL);
 	if (!fbi) {
 		dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
 		ret = -ENOMEM;
@@ -333,9 +346,45 @@ static int __devinit vt8500lcd_probe(struct platform_device *pdev)
 		goto failed_free_res;
 	}
 
-	fbi->fb.fix.smem_start	= pdata->video_mem_phys;
-	fbi->fb.fix.smem_len	= pdata->video_mem_len;
-	fbi->fb.screen_base	= pdata->video_mem_virt;
+	np = of_parse_phandle(pdev->dev.of_node, "default-mode", 0);
+	if (!np) {
+		pr_err("%s: No display description in Device Tree\n", __func__);
+		ret = -EINVAL;
+		goto failed_free_res;
+	}
+
+	/*
+	 * This code is copied from Sascha Hauer's of_videomode helper
+	 * and can be replaced with a call to the helper once mainlined
+	 */
+	ret = 0;
+	ret |= of_property_read_u32(np, "hactive", &of_mode.xres);
+	ret |= of_property_read_u32(np, "vactive", &of_mode.yres);
+	ret |= of_property_read_u32(np, "hback-porch", &of_mode.left_margin);
+	ret |= of_property_read_u32(np, "hfront-porch", &of_mode.right_margin);
+	ret |= of_property_read_u32(np, "hsync-len", &of_mode.hsync_len);
+	ret |= of_property_read_u32(np, "vback-porch", &of_mode.upper_margin);
+	ret |= of_property_read_u32(np, "vfront-porch", &of_mode.lower_margin);
+	ret |= of_property_read_u32(np, "vsync-len", &of_mode.vsync_len);
+	ret |= of_property_read_u32(np, "bpp", &bpp);
+	if (ret) {
+		pr_err("%s: Unable to read display properties\n", __func__);
+		goto failed_free_res;
+	}
+	of_mode.vmode = FB_VMODE_NONINTERLACED;
+
+	/* try allocating the framebuffer */
+	fb_mem_len = of_mode.xres * of_mode.yres * 2 * (bpp / 8);
+	fb_mem_virt = dma_alloc_coherent(&pdev->dev, fb_mem_len, &fb_mem_phys,
+				GFP_KERNEL);
+	if (!fb_mem_virt) {
+		pr_err("%s: Failed to allocate framebuffer\n", __func__);
+		return -ENOMEM;
+	};
+
+	fbi->fb.fix.smem_start	= fb_mem_phys;
+	fbi->fb.fix.smem_len	= fb_mem_len;
+	fbi->fb.screen_base	= fb_mem_virt;
 
 	fbi->palette_size	= PAGE_ALIGN(512);
 	fbi->palette_cpu	= dma_alloc_coherent(&pdev->dev,
@@ -370,10 +419,11 @@ static int __devinit vt8500lcd_probe(struct platform_device *pdev)
 		goto failed_free_irq;
 	}
 
-	fb_videomode_to_var(&fbi->fb.var, &pdata->mode);
-	fbi->fb.var.bits_per_pixel	= pdata->bpp;
-	fbi->fb.var.xres_virtual	= pdata->xres_virtual;
-	fbi->fb.var.yres_virtual	= pdata->yres_virtual;
+	fb_videomode_to_var(&fbi->fb.var, &of_mode);
+
+	fbi->fb.var.xres_virtual	= of_mode.xres;
+	fbi->fb.var.yres_virtual	= of_mode.yres * 2;
+	fbi->fb.var.bits_per_pixel	= bpp;
 
 	ret = vt8500lcd_set_par(&fbi->fb);
 	if (ret) {
@@ -448,12 +498,18 @@ static int __devexit vt8500lcd_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id via_dt_ids[] = {
+	{ .compatible = "via,vt8500-fb", },
+	{}
+};
+
 static struct platform_driver vt8500lcd_driver = {
 	.probe		= vt8500lcd_probe,
 	.remove		= __devexit_p(vt8500lcd_remove),
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "vt8500-lcd",
+		.of_match_table = of_match_ptr(via_dt_ids),
 	},
 };
 
@@ -461,4 +517,5 @@ module_platform_driver(vt8500lcd_driver);
 
 MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>");
 MODULE_DESCRIPTION("LCD controller driver for VIA VT8500");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, via_dt_ids);
diff --git a/drivers/video/wm8505fb.c b/drivers/video/wm8505fb.c
index c8703bd61b7..77539c1b56a 100644
--- a/drivers/video/wm8505fb.c
+++ b/drivers/video/wm8505fb.c
@@ -28,8 +28,11 @@
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/wait.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/memblock.h>
 
-#include <mach/vt8500fb.h>
+#include <linux/platform_data/video-vt8500lcdfb.h>
 
 #include "wm8505fb_regs.h"
 #include "wmt_ge_rops.h"
@@ -59,8 +62,12 @@ static int wm8505fb_init_hw(struct fb_info *info)
 	writel(fbi->fb.fix.smem_start, fbi->regbase + WMT_GOVR_FBADDR);
 	writel(fbi->fb.fix.smem_start, fbi->regbase + WMT_GOVR_FBADDR1);
 
-	/* Set in-memory picture format to RGB 32bpp */
-	writel(0x1c,		       fbi->regbase + WMT_GOVR_COLORSPACE);
+	/*
+	 * Set in-memory picture format to RGB
+	 * 0x31C sets the correct color mode (RGB565) for WM8650
+	 * Bit 8+9 (0x300) are ignored on WM8505 as reserved
+	 */
+	writel(0x31c,		       fbi->regbase + WMT_GOVR_COLORSPACE);
 	writel(1,		       fbi->regbase + WMT_GOVR_COLORSPACE1);
 
 	/* Virtual buffer size */
@@ -127,6 +134,18 @@ static int wm8505fb_set_par(struct fb_info *info)
 		info->var.blue.msb_right = 0;
 		info->fix.visual = FB_VISUAL_TRUECOLOR;
 		info->fix.line_length = info->var.xres_virtual << 2;
+	} else if (info->var.bits_per_pixel == 16) {
+		info->var.red.offset = 11;
+		info->var.red.length = 5;
+		info->var.red.msb_right = 0;
+		info->var.green.offset = 5;
+		info->var.green.length = 6;
+		info->var.green.msb_right = 0;
+		info->var.blue.offset = 0;
+		info->var.blue.length = 5;
+		info->var.blue.msb_right = 0;
+		info->fix.visual = FB_VISUAL_TRUECOLOR;
+		info->fix.line_length = info->var.xres_virtual << 1;
 	}
 
 	wm8505fb_set_timing(info);
@@ -246,16 +265,20 @@ static int __devinit wm8505fb_probe(struct platform_device *pdev)
 	struct wm8505fb_info	*fbi;
 	struct resource		*res;
 	void			*addr;
-	struct vt8500fb_platform_data *pdata;
 	int ret;
 
-	pdata = pdev->dev.platform_data;
+	struct fb_videomode	of_mode;
+	struct device_node	*np;
+	u32			bpp;
+	dma_addr_t fb_mem_phys;
+	unsigned long fb_mem_len;
+	void *fb_mem_virt;
 
 	ret = -ENOMEM;
 	fbi = NULL;
 
-	fbi = kzalloc(sizeof(struct wm8505fb_info) + sizeof(u32) * 16,
-							GFP_KERNEL);
+	fbi = devm_kzalloc(&pdev->dev, sizeof(struct wm8505fb_info) +
+			sizeof(u32) * 16, GFP_KERNEL);
 	if (!fbi) {
 		dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
 		ret = -ENOMEM;
@@ -305,21 +328,58 @@ static int __devinit wm8505fb_probe(struct platform_device *pdev)
 		goto failed_free_res;
 	}
 
-	fb_videomode_to_var(&fbi->fb.var, &pdata->mode);
+	np = of_parse_phandle(pdev->dev.of_node, "default-mode", 0);
+	if (!np) {
+		pr_err("%s: No display description in Device Tree\n", __func__);
+		ret = -EINVAL;
+		goto failed_free_res;
+	}
+
+	/*
+	 * This code is copied from Sascha Hauer's of_videomode helper
+	 * and can be replaced with a call to the helper once mainlined
+	 */
+	ret = 0;
+	ret |= of_property_read_u32(np, "hactive", &of_mode.xres);
+	ret |= of_property_read_u32(np, "vactive", &of_mode.yres);
+	ret |= of_property_read_u32(np, "hback-porch", &of_mode.left_margin);
+	ret |= of_property_read_u32(np, "hfront-porch", &of_mode.right_margin);
+	ret |= of_property_read_u32(np, "hsync-len", &of_mode.hsync_len);
+	ret |= of_property_read_u32(np, "vback-porch", &of_mode.upper_margin);
+	ret |= of_property_read_u32(np, "vfront-porch", &of_mode.lower_margin);
+	ret |= of_property_read_u32(np, "vsync-len", &of_mode.vsync_len);
+	ret |= of_property_read_u32(np, "bpp", &bpp);
+	if (ret) {
+		pr_err("%s: Unable to read display properties\n", __func__);
+		goto failed_free_res;
+	}
+
+	of_mode.vmode = FB_VMODE_NONINTERLACED;
+	fb_videomode_to_var(&fbi->fb.var, &of_mode);
 
 	fbi->fb.var.nonstd		= 0;
 	fbi->fb.var.activate		= FB_ACTIVATE_NOW;
 
 	fbi->fb.var.height		= -1;
 	fbi->fb.var.width		= -1;
-	fbi->fb.var.xres_virtual	= pdata->xres_virtual;
-	fbi->fb.var.yres_virtual	= pdata->yres_virtual;
-	fbi->fb.var.bits_per_pixel	= pdata->bpp;
 
-	fbi->fb.fix.smem_start	= pdata->video_mem_phys;
-	fbi->fb.fix.smem_len	= pdata->video_mem_len;
-	fbi->fb.screen_base	= pdata->video_mem_virt;
-	fbi->fb.screen_size	= pdata->video_mem_len;
+	/* try allocating the framebuffer */
+	fb_mem_len = of_mode.xres * of_mode.yres * 2 * (bpp / 8);
+	fb_mem_virt = dma_alloc_coherent(&pdev->dev, fb_mem_len, &fb_mem_phys,
+				GFP_KERNEL);
+	if (!fb_mem_virt) {
+		pr_err("%s: Failed to allocate framebuffer\n", __func__);
+		return -ENOMEM;
+	};
+
+	fbi->fb.var.xres_virtual	= of_mode.xres;
+	fbi->fb.var.yres_virtual	= of_mode.yres * 2;
+	fbi->fb.var.bits_per_pixel	= bpp;
+
+	fbi->fb.fix.smem_start		= fb_mem_phys;
+	fbi->fb.fix.smem_len		= fb_mem_len;
+	fbi->fb.screen_base		= fb_mem_virt;
+	fbi->fb.screen_size		= fb_mem_len;
 
 	if (fb_alloc_cmap(&fbi->fb.cmap, 256, 0) < 0) {
 		dev_err(&pdev->dev, "Failed to allocate color map\n");
@@ -395,12 +455,18 @@ static int __devexit wm8505fb_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id wmt_dt_ids[] = {
+	{ .compatible = "wm,wm8505-fb", },
+	{}
+};
+
 static struct platform_driver wm8505fb_driver = {
 	.probe		= wm8505fb_probe,
 	.remove		= __devexit_p(wm8505fb_remove),
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= DRIVER_NAME,
+		.of_match_table = of_match_ptr(wmt_dt_ids),
 	},
 };
 
@@ -408,4 +474,5 @@ module_platform_driver(wm8505fb_driver);
 
 MODULE_AUTHOR("Ed Spiridonov <edo.rus@gmail.com>");
 MODULE_DESCRIPTION("Framebuffer driver for WMT WM8505");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, wmt_dt_ids);
diff --git a/drivers/video/wmt_ge_rops.c b/drivers/video/wmt_ge_rops.c
index 55be3865015..ba025b4c7d0 100644
--- a/drivers/video/wmt_ge_rops.c
+++ b/drivers/video/wmt_ge_rops.c
@@ -158,12 +158,18 @@ static int __devexit wmt_ge_rops_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id wmt_dt_ids[] = {
+	{ .compatible = "wm,prizm-ge-rops", },
+	{ /* sentinel */ }
+};
+
 static struct platform_driver wmt_ge_rops_driver = {
 	.probe		= wmt_ge_rops_probe,
 	.remove		= __devexit_p(wmt_ge_rops_remove),
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "wmt_ge_rops",
+		.of_match_table = of_match_ptr(wmt_dt_ids),
 	},
 };
 
@@ -172,4 +178,5 @@ module_platform_driver(wmt_ge_rops_driver);
 MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com");
 MODULE_DESCRIPTION("Accelerators for raster operations using "
 		   "WonderMedia Graphics Engine");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, wmt_dt_ids);
diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
index e0df92ec44b..1425d22cf95 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -1603,7 +1603,7 @@ static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	int retval, i;
 	u32 data;
-	struct list_head *pos = NULL;
+	struct list_head *pos = NULL, *n;
 	struct vme_bridge *ca91cx42_bridge;
 	struct ca91cx42_driver *ca91cx42_device;
 	struct vme_master_resource *master_image;
@@ -1821,28 +1821,28 @@ err_reg:
 	ca91cx42_crcsr_exit(ca91cx42_bridge, pdev);
 err_lm:
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->lm_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->lm_resources) {
 		lm = list_entry(pos, struct vme_lm_resource, list);
 		list_del(pos);
 		kfree(lm);
 	}
 err_dma:
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->dma_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->dma_resources) {
 		dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
 		list_del(pos);
 		kfree(dma_ctrlr);
 	}
 err_slave:
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->slave_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->slave_resources) {
 		slave_image = list_entry(pos, struct vme_slave_resource, list);
 		list_del(pos);
 		kfree(slave_image);
 	}
 err_master:
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->master_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->master_resources) {
 		master_image = list_entry(pos, struct vme_master_resource,
 			list);
 		list_del(pos);
@@ -1868,7 +1868,7 @@ err_struct:
 
 static void ca91cx42_remove(struct pci_dev *pdev)
 {
-	struct list_head *pos = NULL;
+	struct list_head *pos = NULL, *n;
 	struct vme_master_resource *master_image;
 	struct vme_slave_resource *slave_image;
 	struct vme_dma_resource *dma_ctrlr;
@@ -1905,28 +1905,28 @@ static void ca91cx42_remove(struct pci_dev *pdev)
 	ca91cx42_crcsr_exit(ca91cx42_bridge, pdev);
 
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->lm_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->lm_resources) {
 		lm = list_entry(pos, struct vme_lm_resource, list);
 		list_del(pos);
 		kfree(lm);
 	}
 
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->dma_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->dma_resources) {
 		dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
 		list_del(pos);
 		kfree(dma_ctrlr);
 	}
 
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->slave_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->slave_resources) {
 		slave_image = list_entry(pos, struct vme_slave_resource, list);
 		list_del(pos);
 		kfree(slave_image);
 	}
 
 	/* resources are stored in link list */
-	list_for_each(pos, &ca91cx42_bridge->master_resources) {
+	list_for_each_safe(pos, n, &ca91cx42_bridge->master_resources) {
 		master_image = list_entry(pos, struct vme_master_resource,
 			list);
 		list_del(pos);
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index 880d9242e34..5fbd08ffb9c 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -2350,7 +2350,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	int retval, i, master_num;
 	u32 data;
-	struct list_head *pos = NULL;
+	struct list_head *pos = NULL, *n;
 	struct vme_bridge *tsi148_bridge;
 	struct tsi148_driver *tsi148_device;
 	struct vme_master_resource *master_image;
@@ -2615,28 +2615,28 @@ err_reg:
 err_crcsr:
 err_lm:
 	/* resources are stored in link list */
-	list_for_each(pos, &tsi148_bridge->lm_resources) {
+	list_for_each_safe(pos, n, &tsi148_bridge->lm_resources) {
 		lm = list_entry(pos, struct vme_lm_resource, list);
 		list_del(pos);
 		kfree(lm);
 	}
 err_dma:
 	/* resources are stored in link list */
-	list_for_each(pos, &tsi148_bridge->dma_resources) {
+	list_for_each_safe(pos, n, &tsi148_bridge->dma_resources) {
 		dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
 		list_del(pos);
 		kfree(dma_ctrlr);
 	}
 err_slave:
 	/* resources are stored in link list */
-	list_for_each(pos, &tsi148_bridge->slave_resources) {
+	list_for_each_safe(pos, n, &tsi148_bridge->slave_resources) {
 		slave_image = list_entry(pos, struct vme_slave_resource, list);
 		list_del(pos);
 		kfree(slave_image);
 	}
 err_master:
 	/* resources are stored in link list */
-	list_for_each(pos, &tsi148_bridge->master_resources) {
+	list_for_each_safe(pos, n, &tsi148_bridge->master_resources) {
 		master_image = list_entry(pos, struct vme_master_resource,
 			list);
 		list_del(pos);
diff --git a/drivers/w1/masters/Kconfig b/drivers/w1/masters/Kconfig
index 5ceb1cd5019..7e984034a11 100644
--- a/drivers/w1/masters/Kconfig
+++ b/drivers/w1/masters/Kconfig
@@ -60,7 +60,6 @@ config W1_MASTER_GPIO
 
 config HDQ_MASTER_OMAP
 	tristate "OMAP HDQ driver"
-	depends on ARCH_OMAP2PLUS
 	help
 	  Say Y here if you want support for the 1-wire or HDQ Interface
 	  on an OMAP processor.
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 530a2d30906..7c294f4dc0e 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -349,7 +349,7 @@ static void ds1wm_search(void *data, struct w1_master *master_dev,
 			"pass: %d entering ASM\n", pass);
 		ds1wm_write_register(ds1wm_data, DS1WM_CMD, DS1WM_CMD_SRA);
 		dev_dbg(&ds1wm_data->pdev->dev,
-			"pass: %d begining nibble loop\n", pass);
+			"pass: %d beginning nibble loop\n", pass);
 
 		r_prime = 0;
 		d = 0;
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 4b0fcf3c2d0..ca8e60bb2f9 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -18,9 +18,6 @@
 #include <linux/sched.h>
 #include <linux/pm_runtime.h>
 
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
 #include "../w1.h"
 #include "../w1_int.h"
 
@@ -73,11 +70,11 @@ struct hdq_data {
 };
 
 static int __devinit omap_hdq_probe(struct platform_device *pdev);
-static int omap_hdq_remove(struct platform_device *pdev);
+static int __devexit omap_hdq_remove(struct platform_device *pdev);
 
 static struct platform_driver omap_hdq_driver = {
 	.probe =	omap_hdq_probe,
-	.remove =	omap_hdq_remove,
+	.remove =	__devexit_p(omap_hdq_remove),
 	.driver =	{
 		.name =	"omap_hdq",
 	},
@@ -538,39 +535,35 @@ static void omap_w1_write_byte(void *_hdq, u8 byte)
 		hdq_data->init_trans = 0;
 		mutex_unlock(&hdq_data->hdq_mutex);
 	}
-
-	return;
 }
 
 static int __devinit omap_hdq_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct hdq_data *hdq_data;
 	struct resource *res;
 	int ret, irq;
 	u8 rev;
 
-	hdq_data = kmalloc(sizeof(*hdq_data), GFP_KERNEL);
+	hdq_data = devm_kzalloc(dev, sizeof(*hdq_data), GFP_KERNEL);
 	if (!hdq_data) {
 		dev_dbg(&pdev->dev, "unable to allocate memory\n");
-		ret = -ENOMEM;
-		goto err_kmalloc;
+		return -ENOMEM;
 	}
 
-	hdq_data->dev = &pdev->dev;
+	hdq_data->dev = dev;
 	platform_set_drvdata(pdev, hdq_data);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_dbg(&pdev->dev, "unable to get resource\n");
-		ret = -ENXIO;
-		goto err_resource;
+		return -ENXIO;
 	}
 
-	hdq_data->hdq_base = ioremap(res->start, SZ_4K);
+	hdq_data->hdq_base = devm_request_and_ioremap(dev, res);
 	if (!hdq_data->hdq_base) {
 		dev_dbg(&pdev->dev, "ioremap failed\n");
-		ret = -EINVAL;
-		goto err_ioremap;
+		return -ENOMEM;
 	}
 
 	hdq_data->hdq_usecount = 0;
@@ -591,7 +584,8 @@ static int __devinit omap_hdq_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	ret = request_irq(irq, hdq_isr, IRQF_DISABLED, "omap_hdq", hdq_data);
+	ret = devm_request_irq(dev, irq, hdq_isr, IRQF_DISABLED,
+			"omap_hdq", hdq_data);
 	if (ret < 0) {
 		dev_dbg(&pdev->dev, "could not request irq\n");
 		goto err_irq;
@@ -616,19 +610,10 @@ err_irq:
 err_w1:
 	pm_runtime_disable(&pdev->dev);
 
-	iounmap(hdq_data->hdq_base);
-
-err_ioremap:
-err_resource:
-	platform_set_drvdata(pdev, NULL);
-	kfree(hdq_data);
-
-err_kmalloc:
 	return ret;
-
 }
 
-static int omap_hdq_remove(struct platform_device *pdev)
+static int __devexit omap_hdq_remove(struct platform_device *pdev)
 {
 	struct hdq_data *hdq_data = platform_get_drvdata(pdev);
 
@@ -644,27 +629,11 @@ static int omap_hdq_remove(struct platform_device *pdev)
 
 	/* remove module dependency */
 	pm_runtime_disable(&pdev->dev);
-	free_irq(INT_24XX_HDQ_IRQ, hdq_data);
-	platform_set_drvdata(pdev, NULL);
-	iounmap(hdq_data->hdq_base);
-	kfree(hdq_data);
 
 	return 0;
 }
 
-static int __init
-omap_hdq_init(void)
-{
-	return platform_driver_register(&omap_hdq_driver);
-}
-module_init(omap_hdq_init);
-
-static void __exit
-omap_hdq_exit(void)
-{
-	platform_driver_unregister(&omap_hdq_driver);
-}
-module_exit(omap_hdq_exit);
+module_platform_driver(omap_hdq_driver);
 
 module_param(w1_id, int, S_IRUSR);
 MODULE_PARM_DESC(w1_id, "1-wire id for the slave detection");
diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
index df600d14974..6012c4ea320 100644
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -14,6 +14,8 @@
 #include <linux/slab.h>
 #include <linux/w1-gpio.h>
 #include <linux/gpio.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 
 #include "../w1.h"
 #include "../w1_int.h"
@@ -42,12 +44,55 @@ static u8 w1_gpio_read_bit(void *data)
 	return gpio_get_value(pdata->pin) ? 1 : 0;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id w1_gpio_dt_ids[] = {
+	{ .compatible = "w1-gpio" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, w1_gpio_dt_ids);
+
+static int w1_gpio_probe_dt(struct platform_device *pdev)
+{
+	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *of_id =
+			of_match_device(w1_gpio_dt_ids, &pdev->dev);
+
+	if (!of_id)
+		return 0;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	if (of_get_property(np, "linux,open-drain", NULL))
+		pdata->is_open_drain = 1;
+
+	pdata->pin = of_get_gpio(np, 0);
+	pdata->ext_pullup_enable_pin = of_get_gpio(np, 1);
+	pdev->dev.platform_data = pdata;
+
+	return 0;
+}
+#else
+static int w1_gpio_probe_dt(struct platform_device *pdev)
+{
+	return 0;
+}
+#endif
+
 static int __init w1_gpio_probe(struct platform_device *pdev)
 {
 	struct w1_bus_master *master;
-	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct w1_gpio_platform_data *pdata;
 	int err;
 
+	err = w1_gpio_probe_dt(pdev);
+	if (err < 0)
+		return err;
+
+	pdata = pdev->dev.platform_data;
+
 	if (!pdata)
 		return -ENXIO;
 
@@ -59,6 +104,13 @@ static int __init w1_gpio_probe(struct platform_device *pdev)
 	if (err)
 		goto free_master;
 
+	if (gpio_is_valid(pdata->ext_pullup_enable_pin)) {
+		err = gpio_request_one(pdata->ext_pullup_enable_pin,
+				       GPIOF_INIT_LOW, "w1 pullup");
+		if (err < 0)
+			goto free_gpio;
+	}
+
 	master->data = pdata;
 	master->read_bit = w1_gpio_read_bit;
 
@@ -72,15 +124,21 @@ static int __init w1_gpio_probe(struct platform_device *pdev)
 
 	err = w1_add_master_device(master);
 	if (err)
-		goto free_gpio;
+		goto free_gpio_ext_pu;
 
 	if (pdata->enable_external_pullup)
 		pdata->enable_external_pullup(1);
 
+	if (gpio_is_valid(pdata->ext_pullup_enable_pin))
+		gpio_set_value(pdata->ext_pullup_enable_pin, 1);
+
 	platform_set_drvdata(pdev, master);
 
 	return 0;
 
+ free_gpio_ext_pu:
+	if (gpio_is_valid(pdata->ext_pullup_enable_pin))
+		gpio_free(pdata->ext_pullup_enable_pin);
  free_gpio:
 	gpio_free(pdata->pin);
  free_master:
@@ -97,6 +155,9 @@ static int __exit w1_gpio_remove(struct platform_device *pdev)
 	if (pdata->enable_external_pullup)
 		pdata->enable_external_pullup(0);
 
+	if (gpio_is_valid(pdata->ext_pullup_enable_pin))
+		gpio_set_value(pdata->ext_pullup_enable_pin, 0);
+
 	w1_remove_master_device(master);
 	gpio_free(pdata->pin);
 	kfree(master);
@@ -135,6 +196,7 @@ static struct platform_driver w1_gpio_driver = {
 	.driver = {
 		.name	= "w1-gpio",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(w1_gpio_dt_ids),
 	},
 	.remove	= __exit_p(w1_gpio_remove),
 	.suspend = w1_gpio_suspend,
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index d90062b211f..92d08e7fcba 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -91,6 +91,11 @@ static struct w1_family w1_therm_family_DS28EA00 = {
 	.fops = &w1_therm_fops,
 };
 
+static struct w1_family w1_therm_family_DS1825 = {
+	.fid = W1_THERM_DS1825,
+	.fops = &w1_therm_fops,
+};
+
 struct w1_therm_family_converter
 {
 	u8			broken;
@@ -120,6 +125,10 @@ static struct w1_therm_family_converter w1_therm_families[] = {
 		.f		= &w1_therm_family_DS28EA00,
 		.convert	= w1_DS18B20_convert_temp
 	},
+	{
+		.f		= &w1_therm_family_DS1825,
+		.convert	= w1_DS18B20_convert_temp
+	}
 };
 
 static inline int w1_DS18B20_convert_temp(u8 rom[9])
diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h
index b00ada44a89..a1f0ce151d5 100644
--- a/drivers/w1/w1_family.h
+++ b/drivers/w1/w1_family.h
@@ -39,6 +39,7 @@
 #define W1_EEPROM_DS2431	0x2D
 #define W1_FAMILY_DS2760	0x30
 #define W1_FAMILY_DS2780	0x32
+#define W1_THERM_DS1825		0x3B
 #define W1_FAMILY_DS2781	0x3D
 #define W1_THERM_DS28EA00	0x42
 
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 53d75719078..ad1bb9382a9 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -237,12 +237,12 @@ config OMAP_WATCHDOG
 	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 
 config PNX4008_WATCHDOG
-	tristate "PNX4008 and LPC32XX Watchdog"
-	depends on ARCH_PNX4008 || ARCH_LPC32XX
+	tristate "LPC32XX Watchdog"
+	depends on ARCH_LPC32XX
 	select WATCHDOG_CORE
 	help
 	  Say Y here if to include support for the watchdog timer
-	  in the PNX4008 or LPC32XX processor.
+	  in the LPC32XX processor.
 	  This driver can be built as a module by choosing M. The module
 	  will be called pnx4008_wdt.
 
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index 3fe82d0e8ca..5b06d31ab6a 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -166,18 +166,17 @@ static long booke_wdt_ioctl(struct file *file,
 
 	switch (cmd) {
 	case WDIOC_GETSUPPORT:
-		if (copy_to_user((void *)arg, &ident, sizeof(ident)))
-			return -EFAULT;
+		return copy_to_user(p, &ident, sizeof(ident)) ? -EFAULT : 0;
 	case WDIOC_GETSTATUS:
 		return put_user(0, p);
 	case WDIOC_GETBOOTSTATUS:
 		/* XXX: something is clearing TSR */
 		tmp = mfspr(SPRN_TSR) & TSR_WRS(3);
 		/* returns CARDRESET if last reset was caused by the WDT */
-		return (tmp ? WDIOF_CARDRESET : 0);
+		return put_user((tmp ? WDIOF_CARDRESET : 0), p);
 	case WDIOC_SETOPTIONS:
 		if (get_user(tmp, p))
-			return -EINVAL;
+			return -EFAULT;
 		if (tmp == WDIOS_ENABLECARD) {
 			booke_wdt_ping();
 			break;
diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c
index 3f75129eb0a..f7abbaeebca 100644
--- a/drivers/watchdog/da9052_wdt.c
+++ b/drivers/watchdog/da9052_wdt.c
@@ -21,7 +21,6 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/jiffies.h>
-#include <linux/delay.h>
 
 #include <linux/mfd/da9052/reg.h>
 #include <linux/mfd/da9052/da9052.h>
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 1eff743ec49..ae60406ea8a 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -814,6 +814,9 @@ static int __devinit hpwdt_init_one(struct pci_dev *dev,
 	hpwdt_timer_reg = pci_mem_addr + 0x70;
 	hpwdt_timer_con = pci_mem_addr + 0x72;
 
+	/* Make sure that timer is disabled until /dev/watchdog is opened */
+	hpwdt_stop();
+
 	/* Make sure that we have a valid soft_margin */
 	if (hpwdt_change_timer(soft_margin))
 		hpwdt_change_timer(DEFAULT_MARGIN);
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 59e75d9a6b7..c1a4d3bf581 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -24,7 +24,19 @@
 #include <linux/io.h>
 #include <linux/uaccess.h>
 #include <mach/hardware.h>
-#include <mach/regs-timer.h>
+
+#define KS8695_TMR_OFFSET	(0xF0000 + 0xE400)
+#define KS8695_TMR_VA		(KS8695_IO_VA + KS8695_TMR_OFFSET)
+
+/*
+ * Timer registers
+ */
+#define KS8695_TMCON		(0x00)		/* Timer Control Register */
+#define KS8695_T0TC		(0x08)		/* Timer 0 Timeout Count Register */
+#define TMCON_T0EN		(1 << 0)	/* Timer 0 Enable */
+
+/* Timer0 Timeout Counter Register */
+#define T0TC_WATCHDOG		(0xff)		/* Enable watchdog mode */
 
 #define WDT_DEFAULT_TIME	5	/* seconds */
 #define WDT_MAX_TIME		171	/* seconds */
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
index 40f7bf1f865..e6a038ae8dc 100644
--- a/drivers/watchdog/mpc8xxx_wdt.c
+++ b/drivers/watchdog/mpc8xxx_wdt.c
@@ -193,7 +193,7 @@ static int __devinit mpc8xxx_wdt_probe(struct platform_device *ofdev)
 	int ret;
 	const struct of_device_id *match;
 	struct device_node *np = ofdev->dev.of_node;
-	struct mpc8xxx_wdt_type *wdt_type;
+	const struct mpc8xxx_wdt_type *wdt_type;
 	u32 freq = fsl_get_sys_freq();
 	bool enabled;
 
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index fceec4f4eb7..f5db18dbc0f 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -46,6 +46,7 @@
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
 #include <mach/hardware.h>
+#include <plat/cpu.h>
 #include <plat/prcm.h>
 
 #include "omap_wdt.h"
@@ -218,12 +219,16 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
 	case WDIOC_GETSTATUS:
 		return put_user(0, (int __user *)arg);
 	case WDIOC_GETBOOTSTATUS:
+#ifdef CONFIG_ARCH_OMAP1
 		if (cpu_is_omap16xx())
 			return put_user(__raw_readw(ARM_SYSST),
 					(int __user *)arg);
+#endif
+#ifdef CONFIG_ARCH_OMAP2PLUS
 		if (cpu_is_omap24xx())
 			return put_user(omap_prcm_get_reset_sources(),
 					(int __user *)arg);
+#endif
 		return put_user(0, (int __user *)arg);
 	case WDIOC_KEEPALIVE:
 		spin_lock(&wdt_lock);
diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c
index 6aa46a90ff0..3796434991f 100644
--- a/drivers/watchdog/watchdog_core.c
+++ b/drivers/watchdog/watchdog_core.c
@@ -128,11 +128,12 @@ EXPORT_SYMBOL_GPL(watchdog_register_device);
 void watchdog_unregister_device(struct watchdog_device *wdd)
 {
 	int ret;
-	int devno = wdd->cdev.dev;
+	int devno;
 
 	if (wdd == NULL)
 		return;
 
+	devno = wdd->cdev.dev;
 	ret = watchdog_dev_unregister(wdd);
 	if (ret)
 		pr_err("error unregistering /dev/watchdog (err=%d)\n", ret);
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index d80bea5535a..a4a3cab2f45 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_XEN_PVHVM)			+= platform-pci.o
 obj-$(CONFIG_XEN_TMEM)			+= tmem.o
 obj-$(CONFIG_SWIOTLB_XEN)		+= swiotlb-xen.o
 obj-$(CONFIG_XEN_DOM0)			+= pcpu.o
-obj-$(CONFIG_XEN_DOM0)			+= pci.o acpi.o
+obj-$(CONFIG_XEN_DOM0)			+= pci.o dbgp.o acpi.o
 obj-$(CONFIG_XEN_MCE_LOG)		+= mcelog.o
 obj-$(CONFIG_XEN_PCIDEV_BACKEND)	+= xen-pciback/
 obj-$(CONFIG_XEN_PRIVCMD)		+= xen-privcmd.o
diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c
new file mode 100644
index 00000000000..42569c77ccc
--- /dev/null
+++ b/drivers/xen/dbgp.c
@@ -0,0 +1,48 @@
+#include <linux/pci.h>
+#include <linux/usb.h>
+#include <linux/usb/ehci_def.h>
+#include <linux/usb/hcd.h>
+#include <asm/xen/hypercall.h>
+#include <xen/interface/physdev.h>
+#include <xen/xen.h>
+
+static int xen_dbgp_op(struct usb_hcd *hcd, int op)
+{
+	const struct device *ctrlr = hcd_to_bus(hcd)->controller;
+	struct physdev_dbgp_op dbgp;
+
+	if (!xen_initial_domain())
+		return 0;
+
+	dbgp.op = op;
+
+#ifdef CONFIG_PCI
+	if (ctrlr->bus == &pci_bus_type) {
+		const struct pci_dev *pdev = to_pci_dev(ctrlr);
+
+		dbgp.u.pci.seg = pci_domain_nr(pdev->bus);
+		dbgp.u.pci.bus = pdev->bus->number;
+		dbgp.u.pci.devfn = pdev->devfn;
+		dbgp.bus = PHYSDEVOP_DBGP_BUS_PCI;
+	} else
+#endif
+		dbgp.bus = PHYSDEVOP_DBGP_BUS_UNKNOWN;
+
+	return HYPERVISOR_physdev_op(PHYSDEVOP_dbgp_op, &dbgp);
+}
+
+int xen_dbgp_reset_prep(struct usb_hcd *hcd)
+{
+	return xen_dbgp_op(hcd, PHYSDEVOP_DBGP_RESET_PREPARE);
+}
+
+int xen_dbgp_external_startup(struct usb_hcd *hcd)
+{
+	return xen_dbgp_op(hcd, PHYSDEVOP_DBGP_RESET_DONE);
+}
+
+#ifndef CONFIG_EARLY_PRINTK_DBGP
+#include <linux/export.h>
+EXPORT_SYMBOL_GPL(xen_dbgp_reset_prep);
+EXPORT_SYMBOL_GPL(xen_dbgp_external_startup);
+#endif
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 7595581d032..c60d1629c91 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -373,11 +373,22 @@ static void unmask_evtchn(int port)
 {
 	struct shared_info *s = HYPERVISOR_shared_info;
 	unsigned int cpu = get_cpu();
+	int do_hypercall = 0, evtchn_pending = 0;
 
 	BUG_ON(!irqs_disabled());
 
-	/* Slow path (hypercall) if this is a non-local port. */
-	if (unlikely(cpu != cpu_from_evtchn(port))) {
+	if (unlikely((cpu != cpu_from_evtchn(port))))
+		do_hypercall = 1;
+	else
+		evtchn_pending = sync_test_bit(port, &s->evtchn_pending[0]);
+
+	if (unlikely(evtchn_pending && xen_hvm_domain()))
+		do_hypercall = 1;
+
+	/* Slow path (hypercall) if this is a non-local port or if this is
+	 * an hvm domain and an event is pending (hvm domains don't have
+	 * their own implementation of irq_enable). */
+	if (do_hypercall) {
 		struct evtchn_unmask unmask = { .port = port };
 		(void)HYPERVISOR_event_channel_op(EVTCHNOP_unmask, &unmask);
 	} else {
@@ -390,7 +401,7 @@ static void unmask_evtchn(int port)
 		 * 'hw_resend_irq'. Just like a real IO-APIC we 'lose
 		 * the interrupt edge' if the channel is masked.
 		 */
-		if (sync_test_bit(port, &s->evtchn_pending[0]) &&
+		if (evtchn_pending &&
 		    !sync_test_and_set_bit(port / BITS_PER_LONG,
 					   &vcpu_info->evtchn_pending_sel))
 			vcpu_info->evtchn_upcall_pending = 1;
@@ -831,6 +842,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
 		struct irq_info *info = info_for_irq(irq);
 		WARN_ON(info == NULL || info->type != IRQT_EVTCHN);
 	}
+	irq_clear_status_flags(irq, IRQ_NOREQUEST|IRQ_NOAUTOEN);
 
 out:
 	mutex_unlock(&irq_mapping_update_lock);
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 1ffd03bf8e1..5df9fd847b2 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -314,8 +314,9 @@ static int __unmap_grant_pages(struct grant_map *map, int offset, int pages)
 		}
 	}
 
-	err = gnttab_unmap_refs(map->unmap_ops + offset, map->pages + offset,
-				pages, true);
+	err = gnttab_unmap_refs(map->unmap_ops + offset,
+			use_ptemod ? map->kmap_ops + offset : NULL, map->pages + offset,
+			pages);
 	if (err)
 		return err;
 
@@ -445,7 +446,7 @@ static void mn_release(struct mmu_notifier *mn,
 	spin_unlock(&priv->lock);
 }
 
-struct mmu_notifier_ops gntdev_mmu_ops = {
+static struct mmu_notifier_ops gntdev_mmu_ops = {
 	.release                = mn_release,
 	.invalidate_page        = mn_invl_page,
 	.invalidate_range_start = mn_invl_range_start,
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 0bfc1ef1125..b2b0a375b34 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -38,6 +38,7 @@
 #include <linux/vmalloc.h>
 #include <linux/uaccess.h>
 #include <linux/io.h>
+#include <linux/delay.h>
 #include <linux/hardirq.h>
 
 #include <xen/xen.h>
@@ -47,6 +48,7 @@
 #include <xen/interface/memory.h>
 #include <xen/hvc-console.h>
 #include <asm/xen/hypercall.h>
+#include <asm/xen/interface.h>
 
 #include <asm/pgtable.h>
 #include <asm/sync_bitops.h>
@@ -285,10 +287,9 @@ int gnttab_grant_foreign_access(domid_t domid, unsigned long frame,
 }
 EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access);
 
-void gnttab_update_subpage_entry_v2(grant_ref_t ref, domid_t domid,
-				    unsigned long frame, int flags,
-				    unsigned page_off,
-				    unsigned length)
+static void gnttab_update_subpage_entry_v2(grant_ref_t ref, domid_t domid,
+					   unsigned long frame, int flags,
+					   unsigned page_off, unsigned length)
 {
 	gnttab_shared.v2[ref].sub_page.frame = frame;
 	gnttab_shared.v2[ref].sub_page.page_off = page_off;
@@ -345,9 +346,9 @@ bool gnttab_subpage_grants_available(void)
 }
 EXPORT_SYMBOL_GPL(gnttab_subpage_grants_available);
 
-void gnttab_update_trans_entry_v2(grant_ref_t ref, domid_t domid,
-				  int flags, domid_t trans_domid,
-				  grant_ref_t trans_gref)
+static void gnttab_update_trans_entry_v2(grant_ref_t ref, domid_t domid,
+					 int flags, domid_t trans_domid,
+					 grant_ref_t trans_gref)
 {
 	gnttab_shared.v2[ref].transitive.trans_domid = trans_domid;
 	gnttab_shared.v2[ref].transitive.gref = trans_gref;
@@ -823,6 +824,52 @@ unsigned int gnttab_max_grant_frames(void)
 }
 EXPORT_SYMBOL_GPL(gnttab_max_grant_frames);
 
+/* Handling of paged out grant targets (GNTST_eagain) */
+#define MAX_DELAY 256
+static inline void
+gnttab_retry_eagain_gop(unsigned int cmd, void *gop, int16_t *status,
+						const char *func)
+{
+	unsigned delay = 1;
+
+	do {
+		BUG_ON(HYPERVISOR_grant_table_op(cmd, gop, 1));
+		if (*status == GNTST_eagain)
+			msleep(delay++);
+	} while ((*status == GNTST_eagain) && (delay < MAX_DELAY));
+
+	if (delay >= MAX_DELAY) {
+		printk(KERN_ERR "%s: %s eagain grant\n", func, current->comm);
+		*status = GNTST_bad_page;
+	}
+}
+
+void gnttab_batch_map(struct gnttab_map_grant_ref *batch, unsigned count)
+{
+	struct gnttab_map_grant_ref *op;
+
+	if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, batch, count))
+		BUG();
+	for (op = batch; op < batch + count; op++)
+		if (op->status == GNTST_eagain)
+			gnttab_retry_eagain_gop(GNTTABOP_map_grant_ref, op,
+						&op->status, __func__);
+}
+EXPORT_SYMBOL_GPL(gnttab_batch_map);
+
+void gnttab_batch_copy(struct gnttab_copy *batch, unsigned count)
+{
+	struct gnttab_copy *op;
+
+	if (HYPERVISOR_grant_table_op(GNTTABOP_copy, batch, count))
+		BUG();
+	for (op = batch; op < batch + count; op++)
+		if (op->status == GNTST_eagain)
+			gnttab_retry_eagain_gop(GNTTABOP_copy, op,
+						&op->status, __func__);
+}
+EXPORT_SYMBOL_GPL(gnttab_batch_copy);
+
 int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 		    struct gnttab_map_grant_ref *kmap_ops,
 		    struct page **pages, unsigned int count)
@@ -836,6 +883,12 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 	if (ret)
 		return ret;
 
+	/* Retry eagain maps */
+	for (i = 0; i < count; i++)
+		if (map_ops[i].status == GNTST_eagain)
+			gnttab_retry_eagain_gop(GNTTABOP_map_grant_ref, map_ops + i,
+						&map_ops[i].status, __func__);
+
 	if (xen_feature(XENFEAT_auto_translated_physmap))
 		return ret;
 
@@ -870,7 +923,8 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 EXPORT_SYMBOL_GPL(gnttab_map_refs);
 
 int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
-		      struct page **pages, unsigned int count, bool clear_pte)
+		      struct gnttab_map_grant_ref *kmap_ops,
+		      struct page **pages, unsigned int count)
 {
 	int i, ret;
 	bool lazy = false;
@@ -888,7 +942,8 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
 	}
 
 	for (i = 0; i < count; i++) {
-		ret = m2p_remove_override(pages[i], clear_pte);
+		ret = m2p_remove_override(pages[i], kmap_ops ?
+				       &kmap_ops[i] : NULL);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index d4c50d63acb..97ca359ae2b 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -101,19 +101,6 @@ static int platform_pci_resume(struct pci_dev *pdev)
 	return 0;
 }
 
-static void __devinit prepare_shared_info(void)
-{
-#ifdef CONFIG_KEXEC
-	unsigned long addr;
-	struct shared_info *hvm_shared_info;
-
-	addr = alloc_xen_mmio(PAGE_SIZE);
-	hvm_shared_info = ioremap(addr, PAGE_SIZE);
-	memset(hvm_shared_info, 0, PAGE_SIZE);
-	xen_hvm_prepare_kexec(hvm_shared_info, addr >> PAGE_SHIFT);
-#endif
-}
-
 static int __devinit platform_pci_init(struct pci_dev *pdev,
 				       const struct pci_device_id *ent)
 {
@@ -151,8 +138,6 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
 	platform_mmio = mmio_addr;
 	platform_mmiolen = mmio_len;
 
-	prepare_shared_info();
-
 	if (!xen_have_vector_callback) {
 		ret = xen_allocate_irq(pdev);
 		if (ret) {
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index ccee0f16bcf..ef6389580b8 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -76,7 +76,7 @@ static void free_page_list(struct list_head *pages)
  */
 static int gather_array(struct list_head *pagelist,
 			unsigned nelem, size_t size,
-			void __user *data)
+			const void __user *data)
 {
 	unsigned pageidx;
 	void *pagedata;
@@ -246,61 +246,117 @@ struct mmap_batch_state {
 	domid_t domain;
 	unsigned long va;
 	struct vm_area_struct *vma;
-	int err;
-
-	xen_pfn_t __user *user;
+	/* A tristate:
+	 *      0 for no errors
+	 *      1 if at least one error has happened (and no
+	 *          -ENOENT errors have happened)
+	 *      -ENOENT if at least 1 -ENOENT has happened.
+	 */
+	int global_error;
+	/* An array for individual errors */
+	int *err;
+
+	/* User-space mfn array to store errors in the second pass for V1. */
+	xen_pfn_t __user *user_mfn;
 };
 
 static int mmap_batch_fn(void *data, void *state)
 {
 	xen_pfn_t *mfnp = data;
 	struct mmap_batch_state *st = state;
+	int ret;
+
+	ret = xen_remap_domain_mfn_range(st->vma, st->va & PAGE_MASK, *mfnp, 1,
+					 st->vma->vm_page_prot, st->domain);
 
-	if (xen_remap_domain_mfn_range(st->vma, st->va & PAGE_MASK, *mfnp, 1,
-				       st->vma->vm_page_prot, st->domain) < 0) {
-		*mfnp |= 0xf0000000U;
-		st->err++;
+	/* Store error code for second pass. */
+	*(st->err++) = ret;
+
+	/* And see if it affects the global_error. */
+	if (ret < 0) {
+		if (ret == -ENOENT)
+			st->global_error = -ENOENT;
+		else {
+			/* Record that at least one error has happened. */
+			if (st->global_error == 0)
+				st->global_error = 1;
+		}
 	}
 	st->va += PAGE_SIZE;
 
 	return 0;
 }
 
-static int mmap_return_errors(void *data, void *state)
+static int mmap_return_errors_v1(void *data, void *state)
 {
 	xen_pfn_t *mfnp = data;
 	struct mmap_batch_state *st = state;
-
-	return put_user(*mfnp, st->user++);
+	int err = *(st->err++);
+
+	/*
+	 * V1 encodes the error codes in the 32bit top nibble of the
+	 * mfn (with its known limitations vis-a-vis 64 bit callers).
+	 */
+	*mfnp |= (err == -ENOENT) ?
+				PRIVCMD_MMAPBATCH_PAGED_ERROR :
+				PRIVCMD_MMAPBATCH_MFN_ERROR;
+	return __put_user(*mfnp, st->user_mfn++);
 }
 
 static struct vm_operations_struct privcmd_vm_ops;
 
-static long privcmd_ioctl_mmap_batch(void __user *udata)
+static long privcmd_ioctl_mmap_batch(void __user *udata, int version)
 {
 	int ret;
-	struct privcmd_mmapbatch m;
+	struct privcmd_mmapbatch_v2 m;
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned long nr_pages;
 	LIST_HEAD(pagelist);
+	int *err_array = NULL;
 	struct mmap_batch_state state;
 
 	if (!xen_initial_domain())
 		return -EPERM;
 
-	if (copy_from_user(&m, udata, sizeof(m)))
-		return -EFAULT;
+	switch (version) {
+	case 1:
+		if (copy_from_user(&m, udata, sizeof(struct privcmd_mmapbatch)))
+			return -EFAULT;
+		/* Returns per-frame error in m.arr. */
+		m.err = NULL;
+		if (!access_ok(VERIFY_WRITE, m.arr, m.num * sizeof(*m.arr)))
+			return -EFAULT;
+		break;
+	case 2:
+		if (copy_from_user(&m, udata, sizeof(struct privcmd_mmapbatch_v2)))
+			return -EFAULT;
+		/* Returns per-frame error code in m.err. */
+		if (!access_ok(VERIFY_WRITE, m.err, m.num * (sizeof(*m.err))))
+			return -EFAULT;
+		break;
+	default:
+		return -EINVAL;
+	}
 
 	nr_pages = m.num;
 	if ((m.num <= 0) || (nr_pages > (LONG_MAX >> PAGE_SHIFT)))
 		return -EINVAL;
 
-	ret = gather_array(&pagelist, m.num, sizeof(xen_pfn_t),
-			   m.arr);
+	ret = gather_array(&pagelist, m.num, sizeof(xen_pfn_t), m.arr);
 
-	if (ret || list_empty(&pagelist))
+	if (ret)
 		goto out;
+	if (list_empty(&pagelist)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	err_array = kcalloc(m.num, sizeof(int), GFP_KERNEL);
+	if (err_array == NULL) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	down_write(&mm->mmap_sem);
 
@@ -315,24 +371,37 @@ static long privcmd_ioctl_mmap_batch(void __user *udata)
 		goto out;
 	}
 
-	state.domain = m.dom;
-	state.vma = vma;
-	state.va = m.addr;
-	state.err = 0;
+	state.domain        = m.dom;
+	state.vma           = vma;
+	state.va            = m.addr;
+	state.global_error  = 0;
+	state.err           = err_array;
 
-	ret = traverse_pages(m.num, sizeof(xen_pfn_t),
-			     &pagelist, mmap_batch_fn, &state);
+	/* mmap_batch_fn guarantees ret == 0 */
+	BUG_ON(traverse_pages(m.num, sizeof(xen_pfn_t),
+			     &pagelist, mmap_batch_fn, &state));
 
 	up_write(&mm->mmap_sem);
 
-	if (state.err > 0) {
-		state.user = m.arr;
+	if (state.global_error && (version == 1)) {
+		/* Write back errors in second pass. */
+		state.user_mfn = (xen_pfn_t *)m.arr;
+		state.err      = err_array;
 		ret = traverse_pages(m.num, sizeof(xen_pfn_t),
-			       &pagelist,
-			       mmap_return_errors, &state);
+				     &pagelist, mmap_return_errors_v1, &state);
+	} else if (version == 2) {
+		ret = __copy_to_user(m.err, err_array, m.num * sizeof(int));
+		if (ret)
+			ret = -EFAULT;
 	}
 
+	/* If we have not had any EFAULT-like global errors then set the global
+	 * error to -ENOENT if necessary. */
+	if ((ret == 0) && (state.global_error == -ENOENT))
+		ret = -ENOENT;
+
 out:
+	kfree(err_array);
 	free_page_list(&pagelist);
 
 	return ret;
@@ -354,7 +423,11 @@ static long privcmd_ioctl(struct file *file,
 		break;
 
 	case IOCTL_PRIVCMD_MMAPBATCH:
-		ret = privcmd_ioctl_mmap_batch(udata);
+		ret = privcmd_ioctl_mmap_batch(udata, 1);
+		break;
+
+	case IOCTL_PRIVCMD_MMAPBATCH_V2:
+		ret = privcmd_ioctl_mmap_batch(udata, 2);
 		break;
 
 	default:
@@ -380,10 +453,6 @@ static struct vm_operations_struct privcmd_vm_ops = {
 
 static int privcmd_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	/* Unsupported for auto-translate guests. */
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return -ENOSYS;
-
 	/* DONTCOPY is essential for Xen because copy_page_range doesn't know
 	 * how to recreate these mappings */
 	vma->vm_flags |= VM_RESERVED | VM_IO | VM_DONTCOPY | VM_PFNMAP;
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 1afb4fba11b..58db6df866e 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -52,7 +52,7 @@ static unsigned long xen_io_tlb_nslabs;
  * Quick lookup value of the bus address of the IOTLB.
  */
 
-u64 start_dma_addr;
+static u64 start_dma_addr;
 
 static dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
 {
@@ -144,31 +144,72 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs)
 	} while (i < nslabs);
 	return 0;
 }
+static unsigned long xen_set_nslabs(unsigned long nr_tbl)
+{
+	if (!nr_tbl) {
+		xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT);
+		xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE);
+	} else
+		xen_io_tlb_nslabs = nr_tbl;
 
-void __init xen_swiotlb_init(int verbose)
+	return xen_io_tlb_nslabs << IO_TLB_SHIFT;
+}
+
+enum xen_swiotlb_err {
+	XEN_SWIOTLB_UNKNOWN = 0,
+	XEN_SWIOTLB_ENOMEM,
+	XEN_SWIOTLB_EFIXUP
+};
+
+static const char *xen_swiotlb_error(enum xen_swiotlb_err err)
+{
+	switch (err) {
+	case XEN_SWIOTLB_ENOMEM:
+		return "Cannot allocate Xen-SWIOTLB buffer\n";
+	case XEN_SWIOTLB_EFIXUP:
+		return "Failed to get contiguous memory for DMA from Xen!\n"\
+		    "You either: don't have the permissions, do not have"\
+		    " enough free memory under 4GB, or the hypervisor memory"\
+		    " is too fragmented!";
+	default:
+		break;
+	}
+	return "";
+}
+int __ref xen_swiotlb_init(int verbose, bool early)
 {
-	unsigned long bytes;
+	unsigned long bytes, order;
 	int rc = -ENOMEM;
-	unsigned long nr_tbl;
-	char *m = NULL;
+	enum xen_swiotlb_err m_ret = XEN_SWIOTLB_UNKNOWN;
 	unsigned int repeat = 3;
 
-	nr_tbl = swiotlb_nr_tbl();
-	if (nr_tbl)
-		xen_io_tlb_nslabs = nr_tbl;
-	else {
-		xen_io_tlb_nslabs = (64 * 1024 * 1024 >> IO_TLB_SHIFT);
-		xen_io_tlb_nslabs = ALIGN(xen_io_tlb_nslabs, IO_TLB_SEGSIZE);
-	}
+	xen_io_tlb_nslabs = swiotlb_nr_tbl();
 retry:
-	bytes = xen_io_tlb_nslabs << IO_TLB_SHIFT;
-
+	bytes = xen_set_nslabs(xen_io_tlb_nslabs);
+	order = get_order(xen_io_tlb_nslabs << IO_TLB_SHIFT);
 	/*
 	 * Get IO TLB memory from any location.
 	 */
-	xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes));
+	if (early)
+		xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes));
+	else {
+#define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT))
+#define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT)
+		while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) {
+			xen_io_tlb_start = (void *)__get_free_pages(__GFP_NOWARN, order);
+			if (xen_io_tlb_start)
+				break;
+			order--;
+		}
+		if (order != get_order(bytes)) {
+			pr_warn("Warning: only able to allocate %ld MB "
+				"for software IO TLB\n", (PAGE_SIZE << order) >> 20);
+			xen_io_tlb_nslabs = SLABS_PER_PAGE << order;
+			bytes = xen_io_tlb_nslabs << IO_TLB_SHIFT;
+		}
+	}
 	if (!xen_io_tlb_start) {
-		m = "Cannot allocate Xen-SWIOTLB buffer!\n";
+		m_ret = XEN_SWIOTLB_ENOMEM;
 		goto error;
 	}
 	xen_io_tlb_end = xen_io_tlb_start + bytes;
@@ -179,17 +220,22 @@ retry:
 			       bytes,
 			       xen_io_tlb_nslabs);
 	if (rc) {
-		free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
-		m = "Failed to get contiguous memory for DMA from Xen!\n"\
-		    "You either: don't have the permissions, do not have"\
-		    " enough free memory under 4GB, or the hypervisor memory"\
-		    "is too fragmented!";
+		if (early)
+			free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
+		else {
+			free_pages((unsigned long)xen_io_tlb_start, order);
+			xen_io_tlb_start = NULL;
+		}
+		m_ret = XEN_SWIOTLB_EFIXUP;
 		goto error;
 	}
 	start_dma_addr = xen_virt_to_bus(xen_io_tlb_start);
-	swiotlb_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs, verbose);
-
-	return;
+	if (early) {
+		swiotlb_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs, verbose);
+		rc = 0;
+	} else
+		rc = swiotlb_late_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs);
+	return rc;
 error:
 	if (repeat--) {
 		xen_io_tlb_nslabs = max(1024UL, /* Min is 2MB */
@@ -198,10 +244,13 @@ error:
 		      (xen_io_tlb_nslabs << IO_TLB_SHIFT) >> 20);
 		goto retry;
 	}
-	xen_raw_printk("%s (rc:%d)", m, rc);
-	panic("%s (rc:%d)", m, rc);
+	pr_err("%s (rc:%d)", xen_swiotlb_error(m_ret), rc);
+	if (early)
+		panic("%s (rc:%d)", xen_swiotlb_error(m_ret), rc);
+	else
+		free_pages((unsigned long)xen_io_tlb_start, order);
+	return rc;
 }
-
 void *
 xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 			   dma_addr_t *dma_handle, gfp_t flags,
@@ -232,7 +281,7 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		return ret;
 
 	if (hwdev && hwdev->coherent_dma_mask)
-		dma_mask = hwdev->coherent_dma_mask;
+		dma_mask = dma_alloc_coherent_mask(hwdev, flags);
 
 	phys = virt_to_phys(ret);
 	dev_addr = xen_phys_to_bus(phys);
@@ -466,14 +515,6 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_map_sg_attrs);
 
-int
-xen_swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
-		   enum dma_data_direction dir)
-{
-	return xen_swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, NULL);
-}
-EXPORT_SYMBOL_GPL(xen_swiotlb_map_sg);
-
 /*
  * Unmap a set of streaming mode DMA translations.  Again, cpu read rules
  * concerning calls here are the same as for swiotlb_unmap_page() above.
@@ -494,14 +535,6 @@ xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_unmap_sg_attrs);
 
-void
-xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
-		     enum dma_data_direction dir)
-{
-	return xen_swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, NULL);
-}
-EXPORT_SYMBOL_GPL(xen_swiotlb_unmap_sg);
-
 /*
  * Make physical memory consistent for a set of streaming mode DMA translations
  * after a transfer.
diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
index fdb6d229c9b..5e5ad7e2885 100644
--- a/drivers/xen/sys-hypervisor.c
+++ b/drivers/xen/sys-hypervisor.c
@@ -114,7 +114,7 @@ static void xen_sysfs_version_destroy(void)
 
 /* UUID */
 
-static ssize_t uuid_show(struct hyp_sysfs_attr *attr, char *buffer)
+static ssize_t uuid_show_fallback(struct hyp_sysfs_attr *attr, char *buffer)
 {
 	char *vm, *val;
 	int ret;
@@ -135,6 +135,17 @@ static ssize_t uuid_show(struct hyp_sysfs_attr *attr, char *buffer)
 	return ret;
 }
 
+static ssize_t uuid_show(struct hyp_sysfs_attr *attr, char *buffer)
+{
+	xen_domain_handle_t uuid;
+	int ret;
+	ret = HYPERVISOR_xen_version(XENVER_guest_handle, uuid);
+	if (ret)
+		return uuid_show_fallback(attr, buffer);
+	ret = sprintf(buffer, "%pU\n", uuid);
+	return ret;
+}
+
 HYPERVISOR_ATTR_RO(uuid);
 
 static int __init xen_sysfs_uuid_init(void)
diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c
index 89f264c6742..144564e5eb2 100644
--- a/drivers/xen/tmem.c
+++ b/drivers/xen/tmem.c
@@ -21,6 +21,7 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 #include <asm/xen/hypervisor.h>
+#include <xen/tmem.h>
 
 #define TMEM_CONTROL               0
 #define TMEM_NEW_POOL              1
diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index b590ee067fc..316df65163c 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -98,7 +98,6 @@ static int push_cxx_to_hypervisor(struct acpi_processor *_pr)
 
 		dst_cx->type = cx->type;
 		dst_cx->latency = cx->latency;
-		dst_cx->power = cx->power;
 
 		dst_cx->dpcnt = 0;
 		set_xen_guest_handle(dst_cx->dp, NULL);
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index 097e536e867..961d664e2d2 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -353,16 +353,17 @@ static int __devinit pcistub_init_device(struct pci_dev *dev)
 	if (err)
 		goto config_release;
 
-	dev_dbg(&dev->dev, "reseting (FLR, D3, etc) the device\n");
-	__pci_reset_function_locked(dev);
-
 	/* We need the device active to save the state. */
 	dev_dbg(&dev->dev, "save state of device\n");
 	pci_save_state(dev);
 	dev_data->pci_saved_state = pci_store_saved_state(dev);
 	if (!dev_data->pci_saved_state)
 		dev_err(&dev->dev, "Could not store PCI conf saved state!\n");
-
+	else {
+		dev_dbg(&dev->dev, "reseting (FLR, D3, etc) the device\n");
+		__pci_reset_function_locked(dev);
+		pci_restore_state(dev);
+	}
 	/* Now disable the device (this also ensures some private device
 	 * data is setup before we export)
 	 */
@@ -681,14 +682,14 @@ static pci_ers_result_t xen_pcibk_slot_reset(struct pci_dev *dev)
 		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
-		goto release;
+		goto end;
 	}
 
 	if (!test_bit(_XEN_PCIB_AERHANDLER,
 		(unsigned long *)&psdev->pdev->sh_info->flags)) {
 		dev_err(&dev->dev,
 			"guest with no AER driver should have been killed\n");
-		goto release;
+		goto end;
 	}
 	result = common_process(psdev, 1, XEN_PCI_OP_aer_slotreset, result);
 
@@ -698,9 +699,9 @@ static pci_ers_result_t xen_pcibk_slot_reset(struct pci_dev *dev)
 			"No AER slot_reset service or disconnected!\n");
 		kill_domain_by_device(psdev);
 	}
-release:
-	pcistub_device_put(psdev);
 end:
+	if (psdev)
+		pcistub_device_put(psdev);
 	up_write(&pcistub_sem);
 	return result;
 
@@ -739,14 +740,14 @@ static pci_ers_result_t xen_pcibk_mmio_enabled(struct pci_dev *dev)
 		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
-		goto release;
+		goto end;
 	}
 
 	if (!test_bit(_XEN_PCIB_AERHANDLER,
 		(unsigned long *)&psdev->pdev->sh_info->flags)) {
 		dev_err(&dev->dev,
 			"guest with no AER driver should have been killed\n");
-		goto release;
+		goto end;
 	}
 	result = common_process(psdev, 1, XEN_PCI_OP_aer_mmio, result);
 
@@ -756,9 +757,9 @@ static pci_ers_result_t xen_pcibk_mmio_enabled(struct pci_dev *dev)
 			"No AER mmio_enabled service or disconnected!\n");
 		kill_domain_by_device(psdev);
 	}
-release:
-	pcistub_device_put(psdev);
 end:
+	if (psdev)
+		pcistub_device_put(psdev);
 	up_write(&pcistub_sem);
 	return result;
 }
@@ -797,7 +798,7 @@ static pci_ers_result_t xen_pcibk_error_detected(struct pci_dev *dev,
 		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
-		goto release;
+		goto end;
 	}
 
 	/*Guest owns the device yet no aer handler regiested, kill guest*/
@@ -805,7 +806,7 @@ static pci_ers_result_t xen_pcibk_error_detected(struct pci_dev *dev,
 		(unsigned long *)&psdev->pdev->sh_info->flags)) {
 		dev_dbg(&dev->dev, "guest may have no aer driver, kill it\n");
 		kill_domain_by_device(psdev);
-		goto release;
+		goto end;
 	}
 	result = common_process(psdev, error, XEN_PCI_OP_aer_detected, result);
 
@@ -815,9 +816,9 @@ static pci_ers_result_t xen_pcibk_error_detected(struct pci_dev *dev,
 			"No AER error_detected service or disconnected!\n");
 		kill_domain_by_device(psdev);
 	}
-release:
-	pcistub_device_put(psdev);
 end:
+	if (psdev)
+		pcistub_device_put(psdev);
 	up_write(&pcistub_sem);
 	return result;
 }
@@ -851,7 +852,7 @@ static void xen_pcibk_error_resume(struct pci_dev *dev)
 		dev_err(&dev->dev, DRV_NAME " device is not connected or owned"
 			" by HVM, kill it\n");
 		kill_domain_by_device(psdev);
-		goto release;
+		goto end;
 	}
 
 	if (!test_bit(_XEN_PCIB_AERHANDLER,
@@ -859,19 +860,19 @@ static void xen_pcibk_error_resume(struct pci_dev *dev)
 		dev_err(&dev->dev,
 			"guest with no AER driver should have been killed\n");
 		kill_domain_by_device(psdev);
-		goto release;
+		goto end;
 	}
 	common_process(psdev, 1, XEN_PCI_OP_aer_resume,
 		       PCI_ERS_RESULT_RECOVERED);
-release:
-	pcistub_device_put(psdev);
 end:
+	if (psdev)
+		pcistub_device_put(psdev);
 	up_write(&pcistub_sem);
 	return;
 }
 
 /*add xen_pcibk AER handling*/
-static struct pci_error_handlers xen_pcibk_error_handler = {
+static const struct pci_error_handlers xen_pcibk_error_handler = {
 	.error_detected = xen_pcibk_error_detected,
 	.mmio_enabled = xen_pcibk_mmio_enabled,
 	.slot_reset = xen_pcibk_slot_reset,
@@ -897,17 +898,41 @@ static inline int str_to_slot(const char *buf, int *domain, int *bus,
 			      int *slot, int *func)
 {
 	int err;
+	char wc = '*';
 
 	err = sscanf(buf, " %x:%x:%x.%x", domain, bus, slot, func);
-	if (err == 4)
+	switch (err) {
+	case 3:
+		*func = -1;
+		err = sscanf(buf, " %x:%x:%x.%c", domain, bus, slot, &wc);
+		break;
+	case 2:
+		*slot = *func = -1;
+		err = sscanf(buf, " %x:%x:*.%c", domain, bus, &wc);
+		if (err >= 2)
+			++err;
+		break;
+	}
+	if (err == 4 && wc == '*')
 		return 0;
 	else if (err < 0)
 		return -EINVAL;
 
 	/* try again without domain */
 	*domain = 0;
+	wc = '*';
 	err = sscanf(buf, " %x:%x.%x", bus, slot, func);
-	if (err == 3)
+	switch (err) {
+	case 2:
+		*func = -1;
+		err = sscanf(buf, " %x:%x.%c", bus, slot, &wc);
+		break;
+	case 1:
+		*slot = *func = -1;
+		err = sscanf(buf, " %x:*.%c", bus, &wc) + 1;
+		break;
+	}
+	if (err == 3 && wc == '*')
 		return 0;
 
 	return -EINVAL;
@@ -930,6 +955,19 @@ static int pcistub_device_id_add(int domain, int bus, int slot, int func)
 {
 	struct pcistub_device_id *pci_dev_id;
 	unsigned long flags;
+	int rc = 0;
+
+	if (slot < 0) {
+		for (slot = 0; !rc && slot < 32; ++slot)
+			rc = pcistub_device_id_add(domain, bus, slot, func);
+		return rc;
+	}
+
+	if (func < 0) {
+		for (func = 0; !rc && func < 8; ++func)
+			rc = pcistub_device_id_add(domain, bus, slot, func);
+		return rc;
+	}
 
 	pci_dev_id = kmalloc(sizeof(*pci_dev_id), GFP_KERNEL);
 	if (!pci_dev_id)
@@ -952,15 +990,15 @@ static int pcistub_device_id_add(int domain, int bus, int slot, int func)
 static int pcistub_device_id_remove(int domain, int bus, int slot, int func)
 {
 	struct pcistub_device_id *pci_dev_id, *t;
-	int devfn = PCI_DEVFN(slot, func);
 	int err = -ENOENT;
 	unsigned long flags;
 
 	spin_lock_irqsave(&device_ids_lock, flags);
 	list_for_each_entry_safe(pci_dev_id, t, &pcistub_device_ids,
 				 slot_list) {
-		if (pci_dev_id->domain == domain
-		    && pci_dev_id->bus == bus && pci_dev_id->devfn == devfn) {
+		if (pci_dev_id->domain == domain && pci_dev_id->bus == bus
+		    && (slot < 0 || PCI_SLOT(pci_dev_id->devfn) == slot)
+		    && (func < 0 || PCI_FUNC(pci_dev_id->devfn) == func)) {
 			/* Don't break; here because it's possible the same
 			 * slot could be in the list more than once
 			 */
@@ -987,7 +1025,7 @@ static int pcistub_reg_add(int domain, int bus, int slot, int func, int reg,
 	struct config_field *field;
 
 	psdev = pcistub_device_find(domain, bus, slot, func);
-	if (!psdev || !psdev->dev) {
+	if (!psdev) {
 		err = -ENODEV;
 		goto out;
 	}
@@ -1011,6 +1049,8 @@ static int pcistub_reg_add(int domain, int bus, int slot, int func, int reg,
 	if (err)
 		kfree(field);
 out:
+	if (psdev)
+		pcistub_device_put(psdev);
 	return err;
 }
 
@@ -1115,10 +1155,9 @@ static ssize_t pcistub_irq_handler_switch(struct device_driver *drv,
 
 	err = str_to_slot(buf, &domain, &bus, &slot, &func);
 	if (err)
-		goto out;
+		return err;
 
 	psdev = pcistub_device_find(domain, bus, slot, func);
-
 	if (!psdev)
 		goto out;
 
@@ -1134,6 +1173,8 @@ static ssize_t pcistub_irq_handler_switch(struct device_driver *drv,
 	if (dev_data->isr_on)
 		dev_data->ack_intr = 1;
 out:
+	if (psdev)
+		pcistub_device_put(psdev);
 	if (!err)
 		err = count;
 	return err;
@@ -1216,15 +1257,16 @@ static ssize_t permissive_add(struct device_driver *drv, const char *buf,
 	err = str_to_slot(buf, &domain, &bus, &slot, &func);
 	if (err)
 		goto out;
+	if (slot < 0 || func < 0) {
+		err = -EINVAL;
+		goto out;
+	}
 	psdev = pcistub_device_find(domain, bus, slot, func);
 	if (!psdev) {
 		err = -ENODEV;
 		goto out;
 	}
-	if (!psdev->dev) {
-		err = -ENODEV;
-		goto release;
-	}
+
 	dev_data = pci_get_drvdata(psdev->dev);
 	/* the driver data for a device should never be null at this point */
 	if (!dev_data) {
@@ -1297,17 +1339,51 @@ static int __init pcistub_init(void)
 
 	if (pci_devs_to_hide && *pci_devs_to_hide) {
 		do {
+			char wc = '*';
+
 			parsed = 0;
 
 			err = sscanf(pci_devs_to_hide + pos,
 				     " (%x:%x:%x.%x) %n",
 				     &domain, &bus, &slot, &func, &parsed);
-			if (err != 4) {
+			switch (err) {
+			case 3:
+				func = -1;
+				err = sscanf(pci_devs_to_hide + pos,
+					     " (%x:%x:%x.%c) %n",
+					     &domain, &bus, &slot, &wc,
+					     &parsed);
+				break;
+			case 2:
+				slot = func = -1;
+				err = sscanf(pci_devs_to_hide + pos,
+					     " (%x:%x:*.%c) %n",
+					     &domain, &bus, &wc, &parsed) + 1;
+				break;
+			}
+
+			if (err != 4 || wc != '*') {
 				domain = 0;
+				wc = '*';
 				err = sscanf(pci_devs_to_hide + pos,
 					     " (%x:%x.%x) %n",
 					     &bus, &slot, &func, &parsed);
-				if (err != 3)
+				switch (err) {
+				case 2:
+					func = -1;
+					err = sscanf(pci_devs_to_hide + pos,
+						     " (%x:%x.%c) %n",
+						     &bus, &slot, &wc,
+						     &parsed);
+					break;
+				case 1:
+					slot = func = -1;
+					err = sscanf(pci_devs_to_hide + pos,
+						     " (%x:*.%c) %n",
+						     &bus, &wc, &parsed) + 1;
+					break;
+				}
+				if (err != 3 || wc != '*')
 					goto parse_error;
 			}
 
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index b3e146edb51..bcf3ba4a6ec 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -490,8 +490,7 @@ static int xenbus_map_ring_valloc_pv(struct xenbus_device *dev,
 
 	op.host_addr = arbitrary_virt_to_machine(pte).maddr;
 
-	if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1))
-		BUG();
+	gnttab_batch_map(&op, 1);
 
 	if (op.status != GNTST_okay) {
 		free_vm_area(area);
@@ -572,8 +571,7 @@ int xenbus_map_ring(struct xenbus_device *dev, int gnt_ref,
 	gnttab_set_map_op(&op, (unsigned long)vaddr, GNTMAP_host_map, gnt_ref,
 			  dev->otherend_id);
 
-	if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1))
-		BUG();
+	gnttab_batch_map(&op, 1);
 
 	if (op.status != GNTST_okay) {
 		xenbus_dev_fatal(dev, op.status,
diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c
index 52fe7ad0766..c5aa55c5d37 100644
--- a/drivers/xen/xenbus/xenbus_comms.c
+++ b/drivers/xen/xenbus/xenbus_comms.c
@@ -224,7 +224,7 @@ int xb_init_comms(void)
 		int err;
 		err = bind_evtchn_to_irqhandler(xen_store_evtchn, wake_waiting,
 						0, "xenbus", &xb_waitq);
-		if (err <= 0) {
+		if (err < 0) {
 			printk(KERN_ERR "XENBUS request irq failed %i\n", err);
 			return err;
 		}
diff --git a/drivers/xen/xenbus/xenbus_dev_backend.c b/drivers/xen/xenbus/xenbus_dev_backend.c
index be738c43104..d7300080076 100644
--- a/drivers/xen/xenbus/xenbus_dev_backend.c
+++ b/drivers/xen/xenbus/xenbus_dev_backend.c
@@ -107,7 +107,7 @@ static int xenbus_backend_mmap(struct file *file, struct vm_area_struct *vma)
 	return 0;
 }
 
-const struct file_operations xenbus_backend_fops = {
+static const struct file_operations xenbus_backend_fops = {
 	.open = xenbus_backend_open,
 	.mmap = xenbus_backend_mmap,
 	.unlocked_ioctl = xenbus_backend_ioctl,
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index b793723e724..038b71dbf03 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -324,8 +324,8 @@ static int cmp_dev(struct device *dev, void *data)
 	return 0;
 }
 
-struct xenbus_device *xenbus_device_find(const char *nodename,
-					 struct bus_type *bus)
+static struct xenbus_device *xenbus_device_find(const char *nodename,
+						struct bus_type *bus)
 {
 	struct xb_find_info info = { .dev = NULL, .nodename = nodename };
 
@@ -719,17 +719,47 @@ static int __init xenstored_local_init(void)
 	return err;
 }
 
+enum xenstore_init {
+	UNKNOWN,
+	PV,
+	HVM,
+	LOCAL,
+};
 static int __init xenbus_init(void)
 {
 	int err = 0;
+	enum xenstore_init usage = UNKNOWN;
+	uint64_t v = 0;
 
 	if (!xen_domain())
 		return -ENODEV;
 
 	xenbus_ring_ops_init();
 
-	if (xen_hvm_domain()) {
-		uint64_t v = 0;
+	if (xen_pv_domain())
+		usage = PV;
+	if (xen_hvm_domain())
+		usage = HVM;
+	if (xen_hvm_domain() && xen_initial_domain())
+		usage = LOCAL;
+	if (xen_pv_domain() && !xen_start_info->store_evtchn)
+		usage = LOCAL;
+	if (xen_pv_domain() && xen_start_info->store_evtchn)
+		xenstored_ready = 1;
+
+	switch (usage) {
+	case LOCAL:
+		err = xenstored_local_init();
+		if (err)
+			goto out_error;
+		xen_store_interface = mfn_to_virt(xen_store_mfn);
+		break;
+	case PV:
+		xen_store_evtchn = xen_start_info->store_evtchn;
+		xen_store_mfn = xen_start_info->store_mfn;
+		xen_store_interface = mfn_to_virt(xen_store_mfn);
+		break;
+	case HVM:
 		err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v);
 		if (err)
 			goto out_error;
@@ -738,18 +768,12 @@ static int __init xenbus_init(void)
 		if (err)
 			goto out_error;
 		xen_store_mfn = (unsigned long)v;
-		xen_store_interface = ioremap(xen_store_mfn << PAGE_SHIFT, PAGE_SIZE);
-	} else {
-		xen_store_evtchn = xen_start_info->store_evtchn;
-		xen_store_mfn = xen_start_info->store_mfn;
-		if (xen_store_evtchn)
-			xenstored_ready = 1;
-		else {
-			err = xenstored_local_init();
-			if (err)
-				goto out_error;
-		}
-		xen_store_interface = mfn_to_virt(xen_store_mfn);
+		xen_store_interface =
+			ioremap(xen_store_mfn << PAGE_SHIFT, PAGE_SIZE);
+		break;
+	default:
+		pr_warn("Xenstore state unknown\n");
+		break;
 	}
 
 	/* Initialize the interface to xenstore. */
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index a31b54d4883..3159a37d966 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -21,6 +21,7 @@
 #include <xen/xenbus.h>
 #include <xen/events.h>
 #include <xen/page.h>
+#include <xen/xen.h>
 
 #include <xen/platform_pci.h>
 
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index bce15cf4a8d..131dec04794 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -44,6 +44,7 @@
 #include <linux/rwsem.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <asm/xen/hypervisor.h>
 #include <xen/xenbus.h>
 #include <xen/xen.h>
 #include "xenbus_comms.h"
@@ -622,7 +623,7 @@ static void xs_reset_watches(void)
 {
 	int err, supported = 0;
 
-	if (!xen_hvm_domain())
+	if (!xen_hvm_domain() || xen_initial_domain())
 		return;
 
 	err = xenbus_scanf(XBT_NIL, "control",
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index a84b53c0143..459b9ac45cf 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -30,7 +30,8 @@ static struct inode *xenfs_make_inode(struct super_block *sb, int mode)
 
 	if (ret) {
 		ret->i_mode = mode;
-		ret->i_uid = ret->i_gid = 0;
+		ret->i_uid = GLOBAL_ROOT_UID;
+		ret->i_gid = GLOBAL_ROOT_GID;
 		ret->i_blocks = 0;
 		ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
 	}
diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c
index 181fa8158a8..858c9714b2f 100644
--- a/drivers/zorro/zorro.c
+++ b/drivers/zorro/zorro.c
@@ -37,7 +37,6 @@ struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO];
      */
 
 struct zorro_bus {
-	struct list_head devices;	/* list of devices on this bus */
 	struct device dev;
 };
 
@@ -136,7 +135,6 @@ static int __init amiga_zorro_probe(struct platform_device *pdev)
 	if (!bus)
 		return -ENOMEM;
 
-	INIT_LIST_HEAD(&bus->devices);
 	bus->dev.parent = &pdev->dev;
 	dev_set_name(&bus->dev, "zorro");
 	error = device_register(&bus->dev);